[kernel] update ocf-linux to 20080917

[openwrt.git] / target / linux / generic-2.6 / patches-2.6.26 / 971-ocf_20080917.patch

--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -129,6 +129,9 @@
  *                                unsigned int value);
  *     void add_interrupt_randomness(int irq);
  *
+ *      void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
+ *      int random_input_wait(void);
+ *
  * add_input_randomness() uses the input layer interrupt timing, as well as
  * the event type information from the hardware.
  *
@@ -140,6 +143,13 @@
  * a better measure, since the timing of the disk interrupts are more
  * unpredictable.
  *
+ * random_input_words() just provides a raw block of entropy to the input
+ * pool, such as from a hardware entropy generator.
+ *
+ * random_input_wait() suspends the caller until such time as the
+ * entropy pool falls below the write threshold, and returns a count of how
+ * much entropy (in bits) is needed to sustain the pool.
+ *
  * All of these routines try to estimate how many bits of randomness a
  * particular randomness source.  They do this by keeping track of the
  * first and second order deltas of the event timings.
@@ -667,6 +677,61 @@ void add_disk_randomness(struct gendisk 
 }
 #endif
 
+/*
+ * random_input_words - add bulk entropy to pool
+ *
+ * @buf: buffer to add
+ * @wordcount: number of __u32 words to add
+ * @ent_count: total amount of entropy (in bits) to credit
+ *
+ * this provides bulk input of entropy to the input pool
+ *
+ */
+void random_input_words(__u32 *buf, size_t wordcount, int ent_count)
+{
+       mix_pool_bytes(&input_pool, buf, wordcount*4);
+
+       credit_entropy_bits(&input_pool, ent_count);
+
+       DEBUG_ENT("crediting %d bits => %d\n",
+                 ent_count, input_pool.entropy_count);
+       /*
+        * Wake up waiting processes if we have enough
+        * entropy.
+        */
+       if (input_pool.entropy_count >= random_read_wakeup_thresh)
+               wake_up_interruptible(&random_read_wait);
+}
+EXPORT_SYMBOL(random_input_words);
+
+/*
+ * random_input_wait - wait until random needs entropy
+ *
+ * this function sleeps until the /dev/random subsystem actually
+ * needs more entropy, and then return the amount of entropy
+ * that it would be nice to have added to the system.
+ */
+int random_input_wait(void)
+{
+       int count;
+
+       wait_event_interruptible(random_write_wait, 
+                        input_pool.entropy_count < random_write_wakeup_thresh);
+
+       count = random_write_wakeup_thresh - input_pool.entropy_count;
+
+        /* likely we got woken up due to a signal */
+       if (count <= 0) count = random_read_wakeup_thresh; 
+
+       DEBUG_ENT("requesting %d bits from input_wait()er %d<%d\n",
+                 count,
+                 input_pool.entropy_count, random_write_wakeup_thresh);
+
+       return count;
+}
+EXPORT_SYMBOL(random_input_wait);
+
+
 #define EXTRACT_SIZE 10
 
 /*********************************************************************
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -191,6 +191,7 @@ asmlinkage long sys_dup(unsigned int fil
                ret = dupfd(file, 0, 0);
        return ret;
 }
+EXPORT_SYMBOL(sys_dup);
 
 #define SETFL_MASK (O_APPEND | O_NONBLOCK | O_NDELAY | FASYNC | O_DIRECT | O_NOATIME)
 
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -12,6 +12,7 @@
 #define APOLLO_MOUSE_MINOR 7
 #define PC110PAD_MINOR 9
 /*#define ADB_MOUSE_MINOR 10   FIXME OBSOLETE */
+#define CRYPTODEV_MINOR                70      /* /dev/crypto */
 #define WATCHDOG_MINOR         130     /* Watchdog timer     */
 #define TEMP_MINOR             131     /* Temperature Sensor */
 #define RTC_MINOR 135
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -8,6 +8,7 @@
 #define _LINUX_RANDOM_H
 
 #include <linux/ioctl.h>
+#include <linux/types.h> /* for __u32 in user space */
 
 /* ioctl()'s for the random number generator */
 
@@ -32,6 +33,30 @@
 /* Clear the entropy pool and associated counters.  (Superuser only.) */
 #define RNDCLEARPOOL   _IO( 'R', 0x06 )
 
+#ifdef CONFIG_FIPS_RNG
+
+/* Size of seed value - equal to AES blocksize */
+#define AES_BLOCK_SIZE_BYTES   16
+#define SEED_SIZE_BYTES                        AES_BLOCK_SIZE_BYTES
+/* Size of AES key */
+#define KEY_SIZE_BYTES         16
+
+/* ioctl() structure used by FIPS 140-2 Tests */
+struct rand_fips_test {
+       unsigned char key[KEY_SIZE_BYTES];                      /* Input */
+       unsigned char datetime[SEED_SIZE_BYTES];        /* Input */
+       unsigned char seed[SEED_SIZE_BYTES];            /* Input */
+       unsigned char result[SEED_SIZE_BYTES];          /* Output */
+};
+
+/* FIPS 140-2 RNG Variable Seed Test. (Superuser only.) */
+#define RNDFIPSVST     _IOWR('R', 0x10, struct rand_fips_test)
+
+/* FIPS 140-2 RNG Monte Carlo Test. (Superuser only.) */
+#define RNDFIPSMCT     _IOWR('R', 0x11, struct rand_fips_test)
+
+#endif /* #ifdef CONFIG_FIPS_RNG */
+
 struct rand_pool_info {
        int     entropy_count;
        int     buf_size;
@@ -48,6 +73,10 @@ extern void add_input_randomness(unsigne
                                 unsigned int value);
 extern void add_interrupt_randomness(int irq);
 
+extern void random_input_words(__u32 *buf, size_t wordcount, int ent_count);
+extern int random_input_wait(void);
+#define HAS_RANDOM_INPUT_WAIT 1
+
 extern void get_random_bytes(void *buf, int nbytes);
 void generate_random_uuid(unsigned char uuid_out[16]);
 
--- /dev/null
+++ b/crypto/ocf/hifn/Makefile
@@ -0,0 +1,13 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_HIFN)     += hifn7751.o
+obj-$(CONFIG_OCF_HIFNHIPP) += hifnHIPP.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/safe/Makefile
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_SAFE) += safe.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/Makefile
@@ -0,0 +1,121 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+OCF_OBJS = crypto.o criov.o
+
+ifdef CONFIG_OCF_RANDOMHARVEST
+       OCF_OBJS += random.o
+endif
+
+ifdef CONFIG_OCF_FIPS
+       OCF_OBJS += rndtest.o
+endif
+
+# Add in autoconf.h to get #defines for CONFIG_xxx
+AUTOCONF_H=$(ROOTDIR)/modules/autoconf.h
+ifeq ($(AUTOCONF_H), $(wildcard $(AUTOCONF_H)))
+       EXTRA_CFLAGS += -include $(AUTOCONF_H)
+       export EXTRA_CFLAGS
+endif
+
+ifndef obj
+       obj ?= .
+       _obj = subdir
+       mod-subdirs := safe hifn ixp4xx talitos ocfnull
+       export-objs += crypto.o criov.o random.o
+       list-multi += ocf.o
+       _slash :=
+else
+       _obj = obj
+       _slash := /
+endif
+
+EXTRA_CFLAGS += -I$(obj)/.
+
+obj-$(CONFIG_OCF_OCF)         += ocf.o
+obj-$(CONFIG_OCF_CRYPTODEV)   += cryptodev.o
+obj-$(CONFIG_OCF_CRYPTOSOFT)  += cryptosoft.o
+obj-$(CONFIG_OCF_BENCH)       += ocf-bench.o
+
+$(_obj)-$(CONFIG_OCF_SAFE)    += safe$(_slash)
+$(_obj)-$(CONFIG_OCF_HIFN)    += hifn$(_slash)
+$(_obj)-$(CONFIG_OCF_IXP4XX)  += ixp4xx$(_slash)
+$(_obj)-$(CONFIG_OCF_TALITOS) += talitos$(_slash)
+$(_obj)-$(CONFIG_OCF_PASEMI)  += pasemi$(_slash)
+$(_obj)-$(CONFIG_OCF_EP80579) += ep80579$(_slash)
+$(_obj)-$(CONFIG_OCF_OCFNULL) += ocfnull$(_slash)
+
+ocf-objs := $(OCF_OBJS)
+
+$(list-multi) dummy1: $(ocf-objs)
+       $(LD) -r -o $@ $(ocf-objs)
+
+.PHONY:
+clean:
+       rm -f *.o *.ko .*.o.flags .*.ko.cmd .*.o.cmd .*.mod.o.cmd *.mod.c
+       rm -f */*.o */*.ko */.*.o.cmd */.*.ko.cmd */.*.mod.o.cmd */*.mod.c */.*.o.flags
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
+#
+# release gen targets
+#
+
+.PHONY: patch
+patch:
+       REL=`date +%Y%m%d`; \
+               patch=ocf-linux-$$REL.patch; \
+               patch24=ocf-linux-24-$$REL.patch; \
+               patch26=ocf-linux-26-$$REL.patch; \
+               ( \
+                       find . -name Makefile; \
+                       find . -name Config.in; \
+                       find . -name Kconfig; \
+                       find . -name README; \
+                       find . -name '*.[ch]' | grep -v '.mod.c'; \
+               ) | while read t; do \
+                       diff -Nau /dev/null $$t | sed 's?^+++ \./?+++ linux/crypto/ocf/?'; \
+               done > $$patch; \
+               cat patches/linux-2.4.35-ocf.patch $$patch > $$patch24; \
+               cat patches/linux-2.6.26-ocf.patch $$patch > $$patch26
+
+.PHONY: tarball
+tarball:
+       REL=`date +%Y%m%d`; RELDIR=/tmp/ocf-linux-$$REL; \
+               CURDIR=`pwd`; \
+               rm -rf /tmp/ocf-linux-$$REL*; \
+               mkdir -p $$RELDIR/tools; \
+               cp README* $$RELDIR; \
+               cp patches/openss*.patch $$RELDIR; \
+               cp patches/crypto-tools.patch $$RELDIR; \
+               cp tools/[!C]* $$RELDIR/tools; \
+               cd ..; \
+               tar cvf $$RELDIR/ocf-linux.tar \
+                                       --exclude=CVS \
+                                       --exclude=.* \
+                                       --exclude=*.o \
+                                       --exclude=*.ko \
+                                       --exclude=*.mod.* \
+                                       --exclude=README* \
+                                       --exclude=ocf-*.patch \
+                                       --exclude=ocf/patches/openss*.patch \
+                                       --exclude=ocf/patches/crypto-tools.patch \
+                                       --exclude=ocf/tools \
+                                       ocf; \
+               gzip -9 $$RELDIR/ocf-linux.tar; \
+               cd /tmp; \
+               tar cvf ocf-linux-$$REL.tar ocf-linux-$$REL; \
+               gzip -9 ocf-linux-$$REL.tar; \
+               cd $$CURDIR/../../user; \
+               rm -rf /tmp/crypto-tools-$$REL*; \
+               tar cvf /tmp/crypto-tools-$$REL.tar \
+                                       --exclude=CVS \
+                                       --exclude=.* \
+                                       --exclude=*.o \
+                                       --exclude=cryptotest \
+                                       --exclude=cryptokeytest \
+                                       crypto-tools; \
+               gzip -9 /tmp/crypto-tools-$$REL.tar
+
--- /dev/null
+++ b/crypto/ocf/talitos/Makefile
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_TALITOS) += talitos.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/ixp4xx/Makefile
@@ -0,0 +1,104 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+#
+# You will need to point this at your Intel ixp425 includes,  this portion
+# of the Makefile only really works under SGLinux with the appropriate libs
+# installed.  They can be downloaded from http://www.snapgear.org/
+#
+ifeq ($(CONFIG_CPU_IXP46X),y)
+IXPLATFORM = ixp46X
+else
+ifeq ($(CONFIG_CPU_IXP43X),y)
+IXPLATFORM = ixp43X
+else
+IXPLATFORM = ixp42X
+endif
+endif
+
+ifdef CONFIG_IXP400_LIB_2_4
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.4/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.4/ixp_osal
+endif
+ifdef CONFIG_IXP400_LIB_2_1
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.1/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.1/ixp_osal
+endif
+ifdef CONFIG_IXP400_LIB_2_0
+IX_XSCALE_SW = $(ROOTDIR)/modules/ixp425/ixp400-2.0/ixp400_xscale_sw
+OSAL_DIR     = $(ROOTDIR)/modules/ixp425/ixp400-2.0/ixp_osal
+endif
+ifdef IX_XSCALE_SW
+ifdef CONFIG_IXP400_LIB_2_4
+IXP_CFLAGS = \
+       -I$(ROOTDIR)/. \
+       -I$(IX_XSCALE_SW)/src/include \
+       -I$(OSAL_DIR)/common/include/ \
+       -I$(OSAL_DIR)/common/include/modules/ \
+       -I$(OSAL_DIR)/common/include/modules/ddk/ \
+       -I$(OSAL_DIR)/common/include/modules/bufferMgt/ \
+       -I$(OSAL_DIR)/common/include/modules/ioMem/ \
+       -I$(OSAL_DIR)/common/os/linux/include/ \
+       -I$(OSAL_DIR)/common/os/linux/include/core/  \
+       -I$(OSAL_DIR)/common/os/linux/include/modules/ \
+       -I$(OSAL_DIR)/common/os/linux/include/modules/ddk/ \
+       -I$(OSAL_DIR)/common/os/linux/include/modules/bufferMgt/ \
+       -I$(OSAL_DIR)/common/os/linux/include/modules/ioMem/ \
+       -I$(OSAL_DIR)/platforms/$(IXPLATFORM)/include/ \
+       -I$(OSAL_DIR)/platforms/$(IXPLATFORM)/os/linux/include/ \
+       -DENABLE_IOMEM -DENABLE_BUFFERMGT -DENABLE_DDK \
+       -DUSE_IXP4XX_CRYPTO
+else
+IXP_CFLAGS = \
+       -I$(ROOTDIR)/. \
+       -I$(IX_XSCALE_SW)/src/include \
+       -I$(OSAL_DIR)/ \
+       -I$(OSAL_DIR)/os/linux/include/ \
+       -I$(OSAL_DIR)/os/linux/include/modules/ \
+       -I$(OSAL_DIR)/os/linux/include/modules/ioMem/ \
+       -I$(OSAL_DIR)/os/linux/include/modules/bufferMgt/ \
+       -I$(OSAL_DIR)/os/linux/include/core/  \
+       -I$(OSAL_DIR)/os/linux/include/platforms/ \
+       -I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ \
+       -I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ixp425 \
+       -I$(OSAL_DIR)/os/linux/include/platforms/ixp400/ixp465 \
+       -I$(OSAL_DIR)/os/linux/include/core/ \
+       -I$(OSAL_DIR)/include/ \
+       -I$(OSAL_DIR)/include/modules/ \
+       -I$(OSAL_DIR)/include/modules/bufferMgt/ \
+       -I$(OSAL_DIR)/include/modules/ioMem/ \
+       -I$(OSAL_DIR)/include/platforms/ \
+       -I$(OSAL_DIR)/include/platforms/ixp400/ \
+       -DUSE_IXP4XX_CRYPTO
+endif
+endif
+ifdef CONFIG_IXP400_LIB_1_4
+IXP_CFLAGS   = \
+       -I$(ROOTDIR)/. \
+       -I$(ROOTDIR)/modules/ixp425/ixp400-1.4/ixp400_xscale_sw/src/include \
+       -I$(ROOTDIR)/modules/ixp425/ixp400-1.4/ixp400_xscale_sw/src/linux \
+       -DUSE_IXP4XX_CRYPTO
+endif
+ifndef IXPDIR
+IXPDIR = ixp-version-is-not-supported
+endif
+
+ifeq ($(CONFIG_CPU_IXP46X),y)
+IXP_CFLAGS += -D__ixp46X
+else
+ifeq ($(CONFIG_CPU_IXP43X),y)
+IXP_CFLAGS += -D__ixp43X
+else
+IXP_CFLAGS += -D__ixp42X
+endif
+endif
+
+obj-$(CONFIG_OCF_IXP4XX) += ixp4xx.o
+
+obj ?= .
+EXTRA_CFLAGS += $(IXP_CFLAGS) -I$(obj)/.. -I$(obj)/.
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/ocfnull/Makefile
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_OCFNULL) += ocfnull.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/..
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/ep80579/Makefile
@@ -0,0 +1,107 @@
+#########################################################################
+#
+#  Targets supported
+#  all     - builds everything and installs
+#  install - identical to all
+#  depend  - build dependencies
+#  clean   - clears derived objects except the .depend files
+#  distclean- clears all derived objects and the .depend file
+#  
+# @par
+# This file is provided under a dual BSD/GPLv2 license.  When using or 
+#   redistributing this file, you may do so under either license.
+# 
+#   GPL LICENSE SUMMARY
+# 
+#   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+# 
+#   This program is free software; you can redistribute it and/or modify 
+#   it under the terms of version 2 of the GNU General Public License as
+#   published by the Free Software Foundation.
+# 
+#   This program is distributed in the hope that it will be useful, but 
+#   WITHOUT ANY WARRANTY; without even the implied warranty of 
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+#   General Public License for more details.
+# 
+#   You should have received a copy of the GNU General Public License 
+#   along with this program; if not, write to the Free Software 
+#   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#   The full GNU General Public License is included in this distribution 
+#   in the file called LICENSE.GPL.
+# 
+#   Contact Information:
+#   Intel Corporation
+# 
+#   BSD LICENSE 
+# 
+#   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+#   All rights reserved.
+# 
+#   Redistribution and use in source and binary forms, with or without 
+#   modification, are permitted provided that the following conditions 
+#   are met:
+# 
+#     * Redistributions of source code must retain the above copyright 
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright 
+#       notice, this list of conditions and the following disclaimer in 
+#       the documentation and/or other materials provided with the 
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its 
+#       contributors may be used to endorse or promote products derived 
+#       from this software without specific prior written permission.
+# 
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# 
+# 
+#  version: Security.L.1.0.130
+############################################################################
+
+
+####################Common variables and definitions########################
+
+# Ensure The ENV_DIR environmental var is defined.
+ifndef ICP_ENV_DIR
+$(error ICP_ENV_DIR is undefined. Please set the path to your environment makefile \
+        "-> setenv ICP_ENV_DIR <path>")
+endif
+
+#Add your project environment Makefile
+include $(ICP_ENV_DIR)/environment.mk
+
+#include the makefile with all the default and common Make variable definitions
+include $(ICP_BUILDSYSTEM_PATH)/build_files/common.mk
+
+#Add the name for the executable, Library or Module output definitions
+OUTPUT_NAME= icp_ocf
+
+# List of Source Files to be compiled 
+SOURCES= icp_common.c icp_sym.c icp_asym.c
+
+#common includes between all supported OSes
+INCLUDES= -I $(ICP_API_DIR) -I$(ICP_LAC_API) \
+-I$(ICP_OCF_SRC_DIR)
+
+# The location of the os level makefile needs to be changed.
+include $(ICP_ENV_DIR)/$(ICP_OS)_$(ICP_OS_LEVEL).mk
+
+# On the line directly below list the outputs you wish to build for,
+# e.g "lib_static lib_shared exe module" as show below
+install: module
+
+###################Include rules makefiles########################
+include $(ICP_BUILDSYSTEM_PATH)/build_files/rules.mk
+###################End of Rules inclusion#########################
+
+
--- /dev/null
+++ b/crypto/ocf/pasemi/Makefile
@@ -0,0 +1,12 @@
+# for SGlinux builds
+-include $(ROOTDIR)/modules/.config
+
+obj-$(CONFIG_OCF_PASEMI) += pasemi.o
+
+obj ?= .
+EXTRA_CFLAGS += -I$(obj)/.. -I$(obj)/
+
+ifdef TOPDIR
+-include $(TOPDIR)/Rules.make
+endif
+
--- /dev/null
+++ b/crypto/ocf/Config.in
@@ -0,0 +1,34 @@
+#############################################################################
+
+mainmenu_option next_comment
+comment 'OCF Configuration'
+tristate 'OCF (Open Cryptograhic Framework)' CONFIG_OCF_OCF
+dep_mbool '  enable fips RNG checks (fips check on RNG data before use)' \
+                               CONFIG_OCF_FIPS $CONFIG_OCF_OCF
+dep_mbool '  enable harvesting entropy for /dev/random' \
+                               CONFIG_OCF_RANDOMHARVEST $CONFIG_OCF_OCF
+dep_tristate '  cryptodev (user space support)' \
+                               CONFIG_OCF_CRYPTODEV $CONFIG_OCF_OCF
+dep_tristate '  cryptosoft (software crypto engine)' \
+                               CONFIG_OCF_CRYPTOSOFT $CONFIG_OCF_OCF
+dep_tristate '  safenet (HW crypto engine)' \
+                               CONFIG_OCF_SAFE $CONFIG_OCF_OCF
+dep_tristate '  IXP4xx (HW crypto engine)' \
+                               CONFIG_OCF_IXP4XX $CONFIG_OCF_OCF
+dep_mbool    '  Enable IXP4xx HW to perform SHA1 and MD5 hashing (very slow)' \
+                               CONFIG_OCF_IXP4XX_SHA1_MD5 $CONFIG_OCF_IXP4XX
+dep_tristate '  hifn (HW crypto engine)' \
+                               CONFIG_OCF_HIFN $CONFIG_OCF_OCF
+dep_tristate '  talitos (HW crypto engine)' \
+                               CONFIG_OCF_TALITOS $CONFIG_OCF_OCF
+dep_tristate '  pasemi (HW crypto engine)' \
+                               CONFIG_OCF_PASEMI $CONFIG_OCF_OCF
+dep_tristate '  ep80579 (HW crypto engine)' \
+                               CONFIG_OCF_EP80579 $CONFIG_OCF_OCF
+dep_tristate '  ocfnull (does no crypto)' \
+                               CONFIG_OCF_OCFNULL $CONFIG_OCF_OCF
+dep_tristate '  ocf-bench (HW crypto in-kernel benchmark)' \
+                               CONFIG_OCF_BENCH $CONFIG_OCF_OCF
+endmenu
+
+#############################################################################
--- /dev/null
+++ b/crypto/ocf/Kconfig
@@ -0,0 +1,101 @@
+menu "OCF Configuration"
+
+config OCF_OCF
+       tristate "OCF (Open Cryptograhic Framework)"
+       help
+         A linux port of the OpenBSD/FreeBSD crypto framework.
+
+config OCF_RANDOMHARVEST
+       bool "crypto random --- harvest entropy for /dev/random"
+       depends on OCF_OCF
+       help
+         Includes code to harvest random numbers from devices that support it.
+
+config OCF_FIPS
+       bool "enable fips RNG checks"
+       depends on OCF_OCF && OCF_RANDOMHARVEST
+       help
+         Run all RNG provided data through a fips check before
+         adding it /dev/random's entropy pool.
+
+config OCF_CRYPTODEV
+       tristate "cryptodev (user space support)"
+       depends on OCF_OCF
+       help
+         The user space API to access crypto hardware.
+
+config OCF_CRYPTOSOFT
+       tristate "cryptosoft (software crypto engine)"
+       depends on OCF_OCF
+       help
+         A software driver for the OCF framework that uses
+         the kernel CryptoAPI.
+
+config OCF_SAFE
+       tristate "safenet (HW crypto engine)"
+       depends on OCF_OCF
+       help
+         A driver for a number of the safenet Excel crypto accelerators.
+         Currently tested and working on the 1141 and 1741.
+
+config OCF_IXP4XX
+       tristate "IXP4xx (HW crypto engine)"
+       depends on OCF_OCF
+       help
+         XScale IXP4xx crypto accelerator driver.  Requires the
+         Intel Access library.
+
+config OCF_IXP4XX_SHA1_MD5
+       bool "IXP4xx SHA1 and MD5 Hashing"
+       depends on OCF_IXP4XX
+       help
+         Allows the IXP4xx crypto accelerator to perform SHA1 and MD5 hashing.
+         Note: this is MUCH slower than using cryptosoft (software crypto engine).
+
+config OCF_HIFN
+       tristate "hifn (HW crypto engine)"
+       depends on OCF_OCF
+       help
+         OCF driver for various HIFN based crypto accelerators.
+         (7951, 7955, 7956, 7751, 7811)
+
+config OCF_HIFNHIPP
+       tristate "Hifn HIPP (HW packet crypto engine)"
+       depends on OCF_OCF
+       help
+         OCF driver for various HIFN (HIPP) based crypto accelerators
+         (7855)
+
+config OCF_TALITOS
+       tristate "talitos (HW crypto engine)"
+       depends on OCF_OCF
+       help
+         OCF driver for Freescale's security engine (SEC/talitos).
+
+config OCF_PASEMI
+       tristate "pasemi (HW crypto engine)"
+       depends on OCF_OCF && PPC_PASEMI
+       help
+         OCF driver for the PA Semi PWRficient DMA Engine
+
+config OCF_EP80579
+       tristate "ep80579 (HW crypto engine)"
+       depends on OCF_OCF
+       help
+         OCF driver for the Intel EP80579 Integrated Processor Product Line.
+
+config OCF_OCFNULL
+       tristate "ocfnull (fake crypto engine)"
+       depends on OCF_OCF
+       help
+         OCF driver for measuring ipsec overheads (does no crypto)
+
+config OCF_BENCH
+       tristate "ocf-bench (HW crypto in-kernel benchmark)"
+       depends on OCF_OCF
+       help
+         A very simple encryption test for the in-kernel interface
+         of OCF.  Also includes code to benchmark the IXP Access library
+         for comparison.
+
+endmenu
--- /dev/null
+++ b/crypto/ocf/README
@@ -0,0 +1,167 @@
+README - ocf-linux-20071215
+---------------------------
+
+This README provides instructions for getting ocf-linux compiled and
+operating in a generic linux environment.  For other information you
+might like to visit the home page for this project:
+
+    http://ocf-linux.sourceforge.net/
+
+Adding OCF to linux
+-------------------
+
+    Not much in this file for now,  just some notes.  I usually build
+    the ocf support as modules but it can be built into the kernel as
+    well.  To use it:
+
+    * mknod /dev/crypto c 10 70
+
+    * to add OCF to your kernel source,  you have two options.  Apply
+      the kernel specific patch:
+
+          cd linux-2.4*; gunzip < ocf-linux-24-XXXXXXXX.patch.gz | patch -p1
+          cd linux-2.6*; gunzip < ocf-linux-26-XXXXXXXX.patch.gz | patch -p1
+    
+      if you do one of the above,  then you can proceed to the next step,
+      or you can do the above process by hand with using the patches against
+      linux-2.4.35 and 2.6.23 to include the ocf code under crypto/ocf.
+      Here's how to add it:
+
+      for 2.4.35 (and later)
+
+          cd linux-2.4.35/crypto
+          tar xvzf ocf-linux.tar.gz
+          cd ..
+          patch -p1 < crypto/ocf/patches/linux-2.4.35-ocf.patch
+
+      for 2.6.23 (and later),  find the kernel patch specific (or nearest)
+      to your kernel versions and then:
+
+          cd linux-2.6.NN/crypto
+          tar xvzf ocf-linux.tar.gz
+          cd ..
+          patch -p1 < crypto/ocf/patches/linux-2.6.NN-ocf.patch
+
+      It should be easy to take this patch and apply it to other more
+      recent versions of the kernels.  The same patches should also work
+      relatively easily on kernels as old as 2.6.11 and 2.4.18.
+      
+    * under 2.4 if you are on a non-x86 platform,  you may need to:
+
+        cp linux-2.X.x/include/asm-i386/kmap_types.h linux-2.X.x/include/asm-YYY
+
+      so that you can build the kernel crypto support needed for the cryptosoft
+      driver.
+
+    * For simplicity you should enable all the crypto support in your kernel
+      except for the test driver.  Likewise for the OCF options.  Do not
+      enable OCF crypto drivers for HW that you do not have (for example
+      ixp4xx will not compile on non-Xscale systems).
+
+    * make sure that cryptodev.h (from ocf-linux.tar.gz) is installed as
+      crypto/cryptodev.h in an include directory that is used for building
+      applications for your platform.  For example on a host system that
+      might be:
+
+              /usr/include/crypto/cryptodev.h
+
+    * patch your openssl-0.9.8i code with the openssl-0.9.8i.patch.
+      (NOTE: there is no longer a need to patch ssh). The patch is against:
+      openssl-0_9_8e
+
+      If you need a patch for an older version of openssl,  you should look
+      to older OCF releases.  This patch is unlikely to work on older
+      openssl versions.
+
+      openssl-0.9.8i.patch
+                - enables --with-cryptodev for non BSD systems
+                - adds -cpu option to openssl speed for calculating CPU load
+                  under linux
+                - fixes null pointer in openssl speed multi thread output.
+                - fixes test keys to work with linux crypto's more stringent
+                  key checking.
+                - adds MD5/SHA acceleration (Ronen Shitrit), only enabled
+                  with the --with-cryptodev-digests option
+                - fixes bug in engine code caching.
+
+    * build crypto-tools-XXXXXXXX.tar.gz if you want to try some of the BSD
+      tools for testing OCF (ie., cryptotest).
+
+How to load the OCF drivers
+---------------------------
+
+    First insert the base modules:
+
+        insmod ocf
+        insmod cryptodev
+
+    You can then install the software OCF driver with:
+
+        insmod cryptosoft
+
+    and one or more of the OCF HW drivers with:
+
+        insmod safe
+        insmod hifn7751
+        insmod ixp4xx
+        ...
+
+    all the drivers take a debug option to enable verbose debug so that
+    you can see what is going on.  For debug you load them as:
+
+        insmod ocf crypto_debug=1
+        insmod cryptodev cryptodev_debug=1
+        insmod cryptosoft swcr_debug=1
+
+    You may load more than one OCF crypto driver but then there is no guarantee
+    as to which will be used.
+
+    You can also enable debug at run time on 2.6 systems with the following:
+
+        echo 1 > /sys/module/ocf/parameters/crypto_debug
+        echo 1 > /sys/module/cryptodev/parameters/cryptodev_debug
+        echo 1 > /sys/module/cryptosoft/parameters/swcr_debug
+        echo 1 > /sys/module/hifn7751/parameters/hifn_debug
+        echo 1 > /sys/module/safe/parameters/safe_debug
+        echo 1 > /sys/module/ixp4xx/parameters/ixp_debug
+        ...
+
+Testing the OCF support
+-----------------------
+
+    run "cryptotest",  it should do a short test for a couple of
+    des packets.  If it does everything is working.
+
+    If this works,  then ssh will use the driver when invoked as:
+
+        ssh -c 3des username@host
+
+    to see for sure that it is operating, enable debug as defined above.
+
+    To get a better idea of performance run:
+
+        cryptotest 100 4096
+
+    There are more options to cryptotest,  see the help.
+
+    It is also possible to use openssl to test the speed of the crypto
+    drivers.
+
+        openssl speed -evp des -engine cryptodev -elapsed
+        openssl speed -evp des3 -engine cryptodev -elapsed
+        openssl speed -evp aes128 -engine cryptodev -elapsed
+
+    and multiple threads (10) with:
+
+        openssl speed -evp des -engine cryptodev -elapsed -multi 10
+        openssl speed -evp des3 -engine cryptodev -elapsed -multi 10
+        openssl speed -evp aes128 -engine cryptodev -elapsed -multi 10
+
+    for public key testing you can try:
+
+        cryptokeytest
+        openssl speed -engine cryptodev rsa -elapsed
+        openssl speed -engine cryptodev dsa -elapsed
+
+David McCullough
+david_mccullough@securecomputing.com
--- /dev/null
+++ b/crypto/ocf/hifn/hifn7751reg.h
@@ -0,0 +1,540 @@
+/* $FreeBSD: src/sys/dev/hifn/hifn7751reg.h,v 1.7 2007/03/21 03:42:49 sam Exp $ */
+/*     $OpenBSD: hifn7751reg.h,v 1.35 2002/04/08 17:49:42 jason Exp $  */
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *                     http://www.netsec.net
+ *
+ * Please send any comments, feedback, bug-fixes, or feature requests to
+ * software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+#ifndef __HIFN_H__
+#define        __HIFN_H__
+
+/*
+ * Some PCI configuration space offset defines.  The names were made
+ * identical to the names used by the Linux kernel.
+ */
+#define        HIFN_BAR0               PCIR_BAR(0)     /* PUC register map */
+#define        HIFN_BAR1               PCIR_BAR(1)     /* DMA register map */
+#define        HIFN_TRDY_TIMEOUT       0x40
+#define        HIFN_RETRY_TIMEOUT      0x41
+
+/*
+ * PCI vendor and device identifiers
+ * (the names are preserved from their OpenBSD source).
+ */
+#define        PCI_VENDOR_HIFN         0x13a3          /* Hifn */
+#define        PCI_PRODUCT_HIFN_7751   0x0005          /* 7751 */
+#define        PCI_PRODUCT_HIFN_6500   0x0006          /* 6500 */
+#define        PCI_PRODUCT_HIFN_7811   0x0007          /* 7811 */
+#define        PCI_PRODUCT_HIFN_7855   0x001f          /* 7855 */
+#define        PCI_PRODUCT_HIFN_7951   0x0012          /* 7951 */
+#define        PCI_PRODUCT_HIFN_7955   0x0020          /* 7954/7955 */
+#define        PCI_PRODUCT_HIFN_7956   0x001d          /* 7956 */
+
+#define        PCI_VENDOR_INVERTEX     0x14e1          /* Invertex */
+#define        PCI_PRODUCT_INVERTEX_AEON 0x0005        /* AEON */
+
+#define        PCI_VENDOR_NETSEC       0x1660          /* NetSec */
+#define        PCI_PRODUCT_NETSEC_7751 0x7751          /* 7751 */
+
+/*
+ * The values below should multiple of 4 -- and be large enough to handle
+ * any command the driver implements.
+ *
+ * MAX_COMMAND = base command + mac command + encrypt command +
+ *                     mac-key + rc4-key
+ * MAX_RESULT  = base result + mac result + mac + encrypt result
+ *                     
+ *
+ */
+#define        HIFN_MAX_COMMAND        (8 + 8 + 8 + 64 + 260)
+#define        HIFN_MAX_RESULT         (8 + 4 + 20 + 4)
+
+/*
+ * hifn_desc_t
+ *
+ * Holds an individual descriptor for any of the rings.
+ */
+typedef struct hifn_desc {
+       volatile u_int32_t l;           /* length and status bits */
+       volatile u_int32_t p;
+} hifn_desc_t;
+
+/*
+ * Masks for the "length" field of struct hifn_desc.
+ */
+#define        HIFN_D_LENGTH           0x0000ffff      /* length bit mask */
+#define        HIFN_D_MASKDONEIRQ      0x02000000      /* mask the done interrupt */
+#define        HIFN_D_DESTOVER         0x04000000      /* destination overflow */
+#define        HIFN_D_OVER             0x08000000      /* overflow */
+#define        HIFN_D_LAST             0x20000000      /* last descriptor in chain */
+#define        HIFN_D_JUMP             0x40000000      /* jump descriptor */
+#define        HIFN_D_VALID            0x80000000      /* valid bit */
+
+
+/*
+ * Processing Unit Registers (offset from BASEREG0)
+ */
+#define        HIFN_0_PUDATA           0x00    /* Processing Unit Data */
+#define        HIFN_0_PUCTRL           0x04    /* Processing Unit Control */
+#define        HIFN_0_PUISR            0x08    /* Processing Unit Interrupt Status */
+#define        HIFN_0_PUCNFG           0x0c    /* Processing Unit Configuration */
+#define        HIFN_0_PUIER            0x10    /* Processing Unit Interrupt Enable */
+#define        HIFN_0_PUSTAT           0x14    /* Processing Unit Status/Chip ID */
+#define        HIFN_0_FIFOSTAT         0x18    /* FIFO Status */
+#define        HIFN_0_FIFOCNFG         0x1c    /* FIFO Configuration */
+#define        HIFN_0_PUCTRL2          0x28    /* Processing Unit Control (2nd map) */
+#define        HIFN_0_MUTE1            0x80
+#define        HIFN_0_MUTE2            0x90
+#define        HIFN_0_SPACESIZE        0x100   /* Register space size */
+
+/* Processing Unit Control Register (HIFN_0_PUCTRL) */
+#define        HIFN_PUCTRL_CLRSRCFIFO  0x0010  /* clear source fifo */
+#define        HIFN_PUCTRL_STOP        0x0008  /* stop pu */
+#define        HIFN_PUCTRL_LOCKRAM     0x0004  /* lock ram */
+#define        HIFN_PUCTRL_DMAENA      0x0002  /* enable dma */
+#define        HIFN_PUCTRL_RESET       0x0001  /* Reset processing unit */
+
+/* Processing Unit Interrupt Status Register (HIFN_0_PUISR) */
+#define        HIFN_PUISR_CMDINVAL     0x8000  /* Invalid command interrupt */
+#define        HIFN_PUISR_DATAERR      0x4000  /* Data error interrupt */
+#define        HIFN_PUISR_SRCFIFO      0x2000  /* Source FIFO ready interrupt */
+#define        HIFN_PUISR_DSTFIFO      0x1000  /* Destination FIFO ready interrupt */
+#define        HIFN_PUISR_DSTOVER      0x0200  /* Destination overrun interrupt */
+#define        HIFN_PUISR_SRCCMD       0x0080  /* Source command interrupt */
+#define        HIFN_PUISR_SRCCTX       0x0040  /* Source context interrupt */
+#define        HIFN_PUISR_SRCDATA      0x0020  /* Source data interrupt */
+#define        HIFN_PUISR_DSTDATA      0x0010  /* Destination data interrupt */
+#define        HIFN_PUISR_DSTRESULT    0x0004  /* Destination result interrupt */
+
+/* Processing Unit Configuration Register (HIFN_0_PUCNFG) */
+#define        HIFN_PUCNFG_DRAMMASK    0xe000  /* DRAM size mask */
+#define        HIFN_PUCNFG_DSZ_256K    0x0000  /* 256k dram */
+#define        HIFN_PUCNFG_DSZ_512K    0x2000  /* 512k dram */
+#define        HIFN_PUCNFG_DSZ_1M      0x4000  /* 1m dram */
+#define        HIFN_PUCNFG_DSZ_2M      0x6000  /* 2m dram */
+#define        HIFN_PUCNFG_DSZ_4M      0x8000  /* 4m dram */
+#define        HIFN_PUCNFG_DSZ_8M      0xa000  /* 8m dram */
+#define        HIFN_PUNCFG_DSZ_16M     0xc000  /* 16m dram */
+#define        HIFN_PUCNFG_DSZ_32M     0xe000  /* 32m dram */
+#define        HIFN_PUCNFG_DRAMREFRESH 0x1800  /* DRAM refresh rate mask */
+#define        HIFN_PUCNFG_DRFR_512    0x0000  /* 512 divisor of ECLK */
+#define        HIFN_PUCNFG_DRFR_256    0x0800  /* 256 divisor of ECLK */
+#define        HIFN_PUCNFG_DRFR_128    0x1000  /* 128 divisor of ECLK */
+#define        HIFN_PUCNFG_TCALLPHASES 0x0200  /* your guess is as good as mine... */
+#define        HIFN_PUCNFG_TCDRVTOTEM  0x0100  /* your guess is as good as mine... */
+#define        HIFN_PUCNFG_BIGENDIAN   0x0080  /* DMA big endian mode */
+#define        HIFN_PUCNFG_BUS32       0x0040  /* Bus width 32bits */
+#define        HIFN_PUCNFG_BUS16       0x0000  /* Bus width 16 bits */
+#define        HIFN_PUCNFG_CHIPID      0x0020  /* Allow chipid from PUSTAT */
+#define        HIFN_PUCNFG_DRAM        0x0010  /* Context RAM is DRAM */
+#define        HIFN_PUCNFG_SRAM        0x0000  /* Context RAM is SRAM */
+#define        HIFN_PUCNFG_COMPSING    0x0004  /* Enable single compression context */
+#define        HIFN_PUCNFG_ENCCNFG     0x0002  /* Encryption configuration */
+
+/* Processing Unit Interrupt Enable Register (HIFN_0_PUIER) */
+#define        HIFN_PUIER_CMDINVAL     0x8000  /* Invalid command interrupt */
+#define        HIFN_PUIER_DATAERR      0x4000  /* Data error interrupt */
+#define        HIFN_PUIER_SRCFIFO      0x2000  /* Source FIFO ready interrupt */
+#define        HIFN_PUIER_DSTFIFO      0x1000  /* Destination FIFO ready interrupt */
+#define        HIFN_PUIER_DSTOVER      0x0200  /* Destination overrun interrupt */
+#define        HIFN_PUIER_SRCCMD       0x0080  /* Source command interrupt */
+#define        HIFN_PUIER_SRCCTX       0x0040  /* Source context interrupt */
+#define        HIFN_PUIER_SRCDATA      0x0020  /* Source data interrupt */
+#define        HIFN_PUIER_DSTDATA      0x0010  /* Destination data interrupt */
+#define        HIFN_PUIER_DSTRESULT    0x0004  /* Destination result interrupt */
+
+/* Processing Unit Status Register/Chip ID (HIFN_0_PUSTAT) */
+#define        HIFN_PUSTAT_CMDINVAL    0x8000  /* Invalid command interrupt */
+#define        HIFN_PUSTAT_DATAERR     0x4000  /* Data error interrupt */
+#define        HIFN_PUSTAT_SRCFIFO     0x2000  /* Source FIFO ready interrupt */
+#define        HIFN_PUSTAT_DSTFIFO     0x1000  /* Destination FIFO ready interrupt */
+#define        HIFN_PUSTAT_DSTOVER     0x0200  /* Destination overrun interrupt */
+#define        HIFN_PUSTAT_SRCCMD      0x0080  /* Source command interrupt */
+#define        HIFN_PUSTAT_SRCCTX      0x0040  /* Source context interrupt */
+#define        HIFN_PUSTAT_SRCDATA     0x0020  /* Source data interrupt */
+#define        HIFN_PUSTAT_DSTDATA     0x0010  /* Destination data interrupt */
+#define        HIFN_PUSTAT_DSTRESULT   0x0004  /* Destination result interrupt */
+#define        HIFN_PUSTAT_CHIPREV     0x00ff  /* Chip revision mask */
+#define        HIFN_PUSTAT_CHIPENA     0xff00  /* Chip enabled mask */
+#define        HIFN_PUSTAT_ENA_2       0x1100  /* Level 2 enabled */
+#define        HIFN_PUSTAT_ENA_1       0x1000  /* Level 1 enabled */
+#define        HIFN_PUSTAT_ENA_0       0x3000  /* Level 0 enabled */
+#define        HIFN_PUSTAT_REV_2       0x0020  /* 7751 PT6/2 */
+#define        HIFN_PUSTAT_REV_3       0x0030  /* 7751 PT6/3 */
+
+/* FIFO Status Register (HIFN_0_FIFOSTAT) */
+#define        HIFN_FIFOSTAT_SRC       0x7f00  /* Source FIFO available */
+#define        HIFN_FIFOSTAT_DST       0x007f  /* Destination FIFO available */
+
+/* FIFO Configuration Register (HIFN_0_FIFOCNFG) */
+#define        HIFN_FIFOCNFG_THRESHOLD 0x0400  /* must be written as this value */
+
+/*
+ * DMA Interface Registers (offset from BASEREG1)
+ */
+#define        HIFN_1_DMA_CRAR         0x0c    /* DMA Command Ring Address */
+#define        HIFN_1_DMA_SRAR         0x1c    /* DMA Source Ring Address */
+#define        HIFN_1_DMA_RRAR         0x2c    /* DMA Result Ring Address */
+#define        HIFN_1_DMA_DRAR         0x3c    /* DMA Destination Ring Address */
+#define        HIFN_1_DMA_CSR          0x40    /* DMA Status and Control */
+#define        HIFN_1_DMA_IER          0x44    /* DMA Interrupt Enable */
+#define        HIFN_1_DMA_CNFG         0x48    /* DMA Configuration */
+#define        HIFN_1_PLL              0x4c    /* 7955/7956: PLL config */
+#define        HIFN_1_7811_RNGENA      0x60    /* 7811: rng enable */
+#define        HIFN_1_7811_RNGCFG      0x64    /* 7811: rng config */
+#define        HIFN_1_7811_RNGDAT      0x68    /* 7811: rng data */
+#define        HIFN_1_7811_RNGSTS      0x6c    /* 7811: rng status */
+#define        HIFN_1_DMA_CNFG2        0x6c    /* 7955/7956: dma config #2 */
+#define        HIFN_1_7811_MIPSRST     0x94    /* 7811: MIPS reset */
+#define        HIFN_1_REVID            0x98    /* Revision ID */
+
+#define        HIFN_1_PUB_RESET        0x204   /* Public/RNG Reset */
+#define        HIFN_1_PUB_BASE         0x300   /* Public Base Address */
+#define        HIFN_1_PUB_OPLEN        0x304   /* 7951-compat Public Operand Length */
+#define        HIFN_1_PUB_OP           0x308   /* 7951-compat Public Operand */
+#define        HIFN_1_PUB_STATUS       0x30c   /* 7951-compat Public Status */
+#define        HIFN_1_PUB_IEN          0x310   /* Public Interrupt enable */
+#define        HIFN_1_RNG_CONFIG       0x314   /* RNG config */
+#define        HIFN_1_RNG_DATA         0x318   /* RNG data */
+#define        HIFN_1_PUB_MODE         0x320   /* PK mode */
+#define        HIFN_1_PUB_FIFO_OPLEN   0x380   /* first element of oplen fifo */
+#define        HIFN_1_PUB_FIFO_OP      0x384   /* first element of op fifo */
+#define        HIFN_1_PUB_MEM          0x400   /* start of Public key memory */
+#define        HIFN_1_PUB_MEMEND       0xbff   /* end of Public key memory */
+
+/* DMA Status and Control Register (HIFN_1_DMA_CSR) */
+#define        HIFN_DMACSR_D_CTRLMASK  0xc0000000      /* Destinition Ring Control */
+#define        HIFN_DMACSR_D_CTRL_NOP  0x00000000      /* Dest. Control: no-op */
+#define        HIFN_DMACSR_D_CTRL_DIS  0x40000000      /* Dest. Control: disable */
+#define        HIFN_DMACSR_D_CTRL_ENA  0x80000000      /* Dest. Control: enable */
+#define        HIFN_DMACSR_D_ABORT     0x20000000      /* Destinition Ring PCIAbort */
+#define        HIFN_DMACSR_D_DONE      0x10000000      /* Destinition Ring Done */
+#define        HIFN_DMACSR_D_LAST      0x08000000      /* Destinition Ring Last */
+#define        HIFN_DMACSR_D_WAIT      0x04000000      /* Destinition Ring Waiting */
+#define        HIFN_DMACSR_D_OVER      0x02000000      /* Destinition Ring Overflow */
+#define        HIFN_DMACSR_R_CTRL      0x00c00000      /* Result Ring Control */
+#define        HIFN_DMACSR_R_CTRL_NOP  0x00000000      /* Result Control: no-op */
+#define        HIFN_DMACSR_R_CTRL_DIS  0x00400000      /* Result Control: disable */
+#define        HIFN_DMACSR_R_CTRL_ENA  0x00800000      /* Result Control: enable */
+#define        HIFN_DMACSR_R_ABORT     0x00200000      /* Result Ring PCI Abort */
+#define        HIFN_DMACSR_R_DONE      0x00100000      /* Result Ring Done */
+#define        HIFN_DMACSR_R_LAST      0x00080000      /* Result Ring Last */
+#define        HIFN_DMACSR_R_WAIT      0x00040000      /* Result Ring Waiting */
+#define        HIFN_DMACSR_R_OVER      0x00020000      /* Result Ring Overflow */
+#define        HIFN_DMACSR_S_CTRL      0x0000c000      /* Source Ring Control */
+#define        HIFN_DMACSR_S_CTRL_NOP  0x00000000      /* Source Control: no-op */
+#define        HIFN_DMACSR_S_CTRL_DIS  0x00004000      /* Source Control: disable */
+#define        HIFN_DMACSR_S_CTRL_ENA  0x00008000      /* Source Control: enable */
+#define        HIFN_DMACSR_S_ABORT     0x00002000      /* Source Ring PCI Abort */
+#define        HIFN_DMACSR_S_DONE      0x00001000      /* Source Ring Done */
+#define        HIFN_DMACSR_S_LAST      0x00000800      /* Source Ring Last */
+#define        HIFN_DMACSR_S_WAIT      0x00000400      /* Source Ring Waiting */
+#define        HIFN_DMACSR_ILLW        0x00000200      /* Illegal write (7811 only) */
+#define        HIFN_DMACSR_ILLR        0x00000100      /* Illegal read (7811 only) */
+#define        HIFN_DMACSR_C_CTRL      0x000000c0      /* Command Ring Control */
+#define        HIFN_DMACSR_C_CTRL_NOP  0x00000000      /* Command Control: no-op */
+#define        HIFN_DMACSR_C_CTRL_DIS  0x00000040      /* Command Control: disable */
+#define        HIFN_DMACSR_C_CTRL_ENA  0x00000080      /* Command Control: enable */
+#define        HIFN_DMACSR_C_ABORT     0x00000020      /* Command Ring PCI Abort */
+#define        HIFN_DMACSR_C_DONE      0x00000010      /* Command Ring Done */
+#define        HIFN_DMACSR_C_LAST      0x00000008      /* Command Ring Last */
+#define        HIFN_DMACSR_C_WAIT      0x00000004      /* Command Ring Waiting */
+#define        HIFN_DMACSR_PUBDONE     0x00000002      /* Public op done (7951 only) */
+#define        HIFN_DMACSR_ENGINE      0x00000001      /* Command Ring Engine IRQ */
+
+/* DMA Interrupt Enable Register (HIFN_1_DMA_IER) */
+#define        HIFN_DMAIER_D_ABORT     0x20000000      /* Destination Ring PCIAbort */
+#define        HIFN_DMAIER_D_DONE      0x10000000      /* Destination Ring Done */
+#define        HIFN_DMAIER_D_LAST      0x08000000      /* Destination Ring Last */
+#define        HIFN_DMAIER_D_WAIT      0x04000000      /* Destination Ring Waiting */
+#define        HIFN_DMAIER_D_OVER      0x02000000      /* Destination Ring Overflow */
+#define        HIFN_DMAIER_R_ABORT     0x00200000      /* Result Ring PCI Abort */
+#define        HIFN_DMAIER_R_DONE      0x00100000      /* Result Ring Done */
+#define        HIFN_DMAIER_R_LAST      0x00080000      /* Result Ring Last */
+#define        HIFN_DMAIER_R_WAIT      0x00040000      /* Result Ring Waiting */
+#define        HIFN_DMAIER_R_OVER      0x00020000      /* Result Ring Overflow */
+#define        HIFN_DMAIER_S_ABORT     0x00002000      /* Source Ring PCI Abort */
+#define        HIFN_DMAIER_S_DONE      0x00001000      /* Source Ring Done */
+#define        HIFN_DMAIER_S_LAST      0x00000800      /* Source Ring Last */
+#define        HIFN_DMAIER_S_WAIT      0x00000400      /* Source Ring Waiting */
+#define        HIFN_DMAIER_ILLW        0x00000200      /* Illegal write (7811 only) */
+#define        HIFN_DMAIER_ILLR        0x00000100      /* Illegal read (7811 only) */
+#define        HIFN_DMAIER_C_ABORT     0x00000020      /* Command Ring PCI Abort */
+#define        HIFN_DMAIER_C_DONE      0x00000010      /* Command Ring Done */
+#define        HIFN_DMAIER_C_LAST      0x00000008      /* Command Ring Last */
+#define        HIFN_DMAIER_C_WAIT      0x00000004      /* Command Ring Waiting */
+#define        HIFN_DMAIER_PUBDONE     0x00000002      /* public op done (7951 only) */
+#define        HIFN_DMAIER_ENGINE      0x00000001      /* Engine IRQ */
+
+/* DMA Configuration Register (HIFN_1_DMA_CNFG) */
+#define        HIFN_DMACNFG_BIGENDIAN  0x10000000      /* big endian mode */
+#define        HIFN_DMACNFG_POLLFREQ   0x00ff0000      /* Poll frequency mask */
+#define        HIFN_DMACNFG_UNLOCK     0x00000800
+#define        HIFN_DMACNFG_POLLINVAL  0x00000700      /* Invalid Poll Scalar */
+#define        HIFN_DMACNFG_LAST       0x00000010      /* Host control LAST bit */
+#define        HIFN_DMACNFG_MODE       0x00000004      /* DMA mode */
+#define        HIFN_DMACNFG_DMARESET   0x00000002      /* DMA Reset # */
+#define        HIFN_DMACNFG_MSTRESET   0x00000001      /* Master Reset # */
+
+/* DMA Configuration Register (HIFN_1_DMA_CNFG2) */
+#define        HIFN_DMACNFG2_PKSWAP32  (1 << 19)       /* swap the OPLEN/OP reg */
+#define        HIFN_DMACNFG2_PKSWAP8   (1 << 18)       /* swap the bits of OPLEN/OP */
+#define        HIFN_DMACNFG2_BAR0_SWAP32 (1<<17)       /* swap the bytes of BAR0 */
+#define        HIFN_DMACNFG2_BAR1_SWAP8 (1<<16)        /* swap the bits  of BAR0 */
+#define        HIFN_DMACNFG2_INIT_WRITE_BURST_SHIFT 12
+#define        HIFN_DMACNFG2_INIT_READ_BURST_SHIFT 8
+#define        HIFN_DMACNFG2_TGT_WRITE_BURST_SHIFT 4
+#define        HIFN_DMACNFG2_TGT_READ_BURST_SHIFT  0
+
+/* 7811 RNG Enable Register (HIFN_1_7811_RNGENA) */
+#define        HIFN_7811_RNGENA_ENA    0x00000001      /* enable RNG */
+
+/* 7811 RNG Config Register (HIFN_1_7811_RNGCFG) */
+#define        HIFN_7811_RNGCFG_PRE1   0x00000f00      /* first prescalar */
+#define        HIFN_7811_RNGCFG_OPRE   0x00000080      /* output prescalar */
+#define        HIFN_7811_RNGCFG_DEFL   0x00000f80      /* 2 words/ 1/100 sec */
+
+/* 7811 RNG Status Register (HIFN_1_7811_RNGSTS) */
+#define        HIFN_7811_RNGSTS_RDY    0x00004000      /* two numbers in FIFO */
+#define        HIFN_7811_RNGSTS_UFL    0x00001000      /* rng underflow */
+
+/* 7811 MIPS Reset Register (HIFN_1_7811_MIPSRST) */
+#define        HIFN_MIPSRST_BAR2SIZE   0xffff0000      /* sdram size */
+#define        HIFN_MIPSRST_GPRAMINIT  0x00008000      /* gpram can be accessed */
+#define        HIFN_MIPSRST_CRAMINIT   0x00004000      /* ctxram can be accessed */
+#define        HIFN_MIPSRST_LED2       0x00000400      /* external LED2 */
+#define        HIFN_MIPSRST_LED1       0x00000200      /* external LED1 */
+#define        HIFN_MIPSRST_LED0       0x00000100      /* external LED0 */
+#define        HIFN_MIPSRST_MIPSDIS    0x00000004      /* disable MIPS */
+#define        HIFN_MIPSRST_MIPSRST    0x00000002      /* warm reset MIPS */
+#define        HIFN_MIPSRST_MIPSCOLD   0x00000001      /* cold reset MIPS */
+
+/* Public key reset register (HIFN_1_PUB_RESET) */
+#define        HIFN_PUBRST_RESET       0x00000001      /* reset public/rng unit */
+
+/* Public operation register (HIFN_1_PUB_OP) */
+#define        HIFN_PUBOP_AOFFSET      0x0000003e      /* A offset */
+#define        HIFN_PUBOP_BOFFSET      0x00000fc0      /* B offset */
+#define        HIFN_PUBOP_MOFFSET      0x0003f000      /* M offset */
+#define        HIFN_PUBOP_OP_MASK      0x003c0000      /* Opcode: */
+#define        HIFN_PUBOP_OP_NOP       0x00000000      /*  NOP */
+#define        HIFN_PUBOP_OP_ADD       0x00040000      /*  ADD */
+#define        HIFN_PUBOP_OP_ADDC      0x00080000      /*  ADD w/carry */
+#define        HIFN_PUBOP_OP_SUB       0x000c0000      /*  SUB */
+#define        HIFN_PUBOP_OP_SUBC      0x00100000      /*  SUB w/carry */
+#define        HIFN_PUBOP_OP_MODADD    0x00140000      /*  Modular ADD */
+#define        HIFN_PUBOP_OP_MODSUB    0x00180000      /*  Modular SUB */
+#define        HIFN_PUBOP_OP_INCA      0x001c0000      /*  INC A */
+#define        HIFN_PUBOP_OP_DECA      0x00200000      /*  DEC A */
+#define        HIFN_PUBOP_OP_MULT      0x00240000      /*  MULT */
+#define        HIFN_PUBOP_OP_MODMULT   0x00280000      /*  Modular MULT */
+#define        HIFN_PUBOP_OP_MODRED    0x002c0000      /*  Modular Red */
+#define        HIFN_PUBOP_OP_MODEXP    0x00300000      /*  Modular Exp */
+
+/* Public operand length register (HIFN_1_PUB_OPLEN) */
+#define        HIFN_PUBOPLEN_MODLEN    0x0000007f
+#define        HIFN_PUBOPLEN_EXPLEN    0x0003ff80
+#define        HIFN_PUBOPLEN_REDLEN    0x003c0000
+
+/* Public status register (HIFN_1_PUB_STATUS) */
+#define        HIFN_PUBSTS_DONE        0x00000001      /* operation done */
+#define        HIFN_PUBSTS_CARRY       0x00000002      /* carry */
+#define        HIFN_PUBSTS_FIFO_EMPTY  0x00000100      /* fifo empty */
+#define        HIFN_PUBSTS_FIFO_FULL   0x00000200      /* fifo full */
+#define        HIFN_PUBSTS_FIFO_OVFL   0x00000400      /* fifo overflow */
+#define        HIFN_PUBSTS_FIFO_WRITE  0x000f0000      /* fifo write */
+#define        HIFN_PUBSTS_FIFO_READ   0x0f000000      /* fifo read */
+
+/* Public interrupt enable register (HIFN_1_PUB_IEN) */
+#define        HIFN_PUBIEN_DONE        0x00000001      /* operation done interrupt */
+
+/* Random number generator config register (HIFN_1_RNG_CONFIG) */
+#define        HIFN_RNGCFG_ENA         0x00000001      /* enable rng */
+
+/*
+ * Register offsets in register set 1
+ */
+
+#define        HIFN_UNLOCK_SECRET1     0xf4
+#define        HIFN_UNLOCK_SECRET2     0xfc
+
+/*
+ * PLL config register
+ *
+ * This register is present only on 7954/7955/7956 parts. It must be
+ * programmed according to the bus interface method used by the h/w.
+ * Note that the parts require a stable clock.  Since the PCI clock
+ * may vary the reference clock must usually be used.  To avoid
+ * overclocking the core logic, setup must be done carefully, refer
+ * to the driver for details.  The exact multiplier required varies
+ * by part and system configuration; refer to the Hifn documentation.
+ */
+#define        HIFN_PLL_REF_SEL        0x00000001      /* REF/HBI clk selection */
+#define        HIFN_PLL_BP             0x00000002      /* bypass (used during setup) */
+/* bit 2 reserved */
+#define        HIFN_PLL_PK_CLK_SEL     0x00000008      /* public key clk select */
+#define        HIFN_PLL_PE_CLK_SEL     0x00000010      /* packet engine clk select */
+/* bits 5-9 reserved */
+#define        HIFN_PLL_MBSET          0x00000400      /* must be set to 1 */
+#define        HIFN_PLL_ND             0x00003800      /* Fpll_ref multiplier select */
+#define        HIFN_PLL_ND_SHIFT       11
+#define        HIFN_PLL_ND_2           0x00000000      /* 2x */
+#define        HIFN_PLL_ND_4           0x00000800      /* 4x */
+#define        HIFN_PLL_ND_6           0x00001000      /* 6x */
+#define        HIFN_PLL_ND_8           0x00001800      /* 8x */
+#define        HIFN_PLL_ND_10          0x00002000      /* 10x */
+#define        HIFN_PLL_ND_12          0x00002800      /* 12x */
+/* bits 14-15 reserved */
+#define        HIFN_PLL_IS             0x00010000      /* charge pump current select */
+/* bits 17-31 reserved */
+
+/*
+ * Board configuration specifies only these bits.
+ */
+#define        HIFN_PLL_CONFIG         (HIFN_PLL_IS|HIFN_PLL_ND|HIFN_PLL_REF_SEL)
+
+/*
+ * Public Key Engine Mode Register
+ */
+#define        HIFN_PKMODE_HOSTINVERT  (1 << 0)        /* HOST INVERT */
+#define        HIFN_PKMODE_ENHANCED    (1 << 1)        /* Enable enhanced mode */
+
+
+/*********************************************************************
+ * Structs for board commands 
+ *
+ *********************************************************************/
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_base_command {
+       volatile u_int16_t masks;
+       volatile u_int16_t session_num;
+       volatile u_int16_t total_source_count;
+       volatile u_int16_t total_dest_count;
+} hifn_base_command_t;
+
+#define        HIFN_BASE_CMD_MAC               0x0400
+#define        HIFN_BASE_CMD_CRYPT             0x0800
+#define        HIFN_BASE_CMD_DECODE            0x2000
+#define        HIFN_BASE_CMD_SRCLEN_M          0xc000
+#define        HIFN_BASE_CMD_SRCLEN_S          14
+#define        HIFN_BASE_CMD_DSTLEN_M          0x3000
+#define        HIFN_BASE_CMD_DSTLEN_S          12
+#define        HIFN_BASE_CMD_LENMASK_HI        0x30000
+#define        HIFN_BASE_CMD_LENMASK_LO        0x0ffff
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_crypt_command {
+       volatile u_int16_t masks;
+       volatile u_int16_t header_skip;
+       volatile u_int16_t source_count;
+       volatile u_int16_t reserved;
+} hifn_crypt_command_t;
+
+#define        HIFN_CRYPT_CMD_ALG_MASK         0x0003          /* algorithm: */
+#define        HIFN_CRYPT_CMD_ALG_DES          0x0000          /*   DES */
+#define        HIFN_CRYPT_CMD_ALG_3DES         0x0001          /*   3DES */
+#define        HIFN_CRYPT_CMD_ALG_RC4          0x0002          /*   RC4 */
+#define        HIFN_CRYPT_CMD_ALG_AES          0x0003          /*   AES */
+#define        HIFN_CRYPT_CMD_MODE_MASK        0x0018          /* Encrypt mode: */
+#define        HIFN_CRYPT_CMD_MODE_ECB         0x0000          /*   ECB */
+#define        HIFN_CRYPT_CMD_MODE_CBC         0x0008          /*   CBC */
+#define        HIFN_CRYPT_CMD_MODE_CFB         0x0010          /*   CFB */
+#define        HIFN_CRYPT_CMD_MODE_OFB         0x0018          /*   OFB */
+#define        HIFN_CRYPT_CMD_CLR_CTX          0x0040          /* clear context */
+#define        HIFN_CRYPT_CMD_NEW_KEY          0x0800          /* expect new key */
+#define        HIFN_CRYPT_CMD_NEW_IV           0x1000          /* expect new iv */
+
+#define        HIFN_CRYPT_CMD_SRCLEN_M         0xc000
+#define        HIFN_CRYPT_CMD_SRCLEN_S         14
+
+#define        HIFN_CRYPT_CMD_KSZ_MASK         0x0600          /* AES key size: */
+#define        HIFN_CRYPT_CMD_KSZ_128          0x0000          /*   128 bit */
+#define        HIFN_CRYPT_CMD_KSZ_192          0x0200          /*   192 bit */
+#define        HIFN_CRYPT_CMD_KSZ_256          0x0400          /*   256 bit */
+
+/*
+ * Structure to help build up the command data structure.
+ */
+typedef struct hifn_mac_command {
+       volatile u_int16_t masks;
+       volatile u_int16_t header_skip;
+       volatile u_int16_t source_count;
+       volatile u_int16_t reserved;
+} hifn_mac_command_t;
+
+#define        HIFN_MAC_CMD_ALG_MASK           0x0001
+#define        HIFN_MAC_CMD_ALG_SHA1           0x0000
+#define        HIFN_MAC_CMD_ALG_MD5            0x0001
+#define        HIFN_MAC_CMD_MODE_MASK          0x000c
+#define        HIFN_MAC_CMD_MODE_HMAC          0x0000
+#define        HIFN_MAC_CMD_MODE_SSL_MAC       0x0004
+#define        HIFN_MAC_CMD_MODE_HASH          0x0008
+#define        HIFN_MAC_CMD_MODE_FULL          0x0004
+#define        HIFN_MAC_CMD_TRUNC              0x0010
+#define        HIFN_MAC_CMD_RESULT             0x0020
+#define        HIFN_MAC_CMD_APPEND             0x0040
+#define        HIFN_MAC_CMD_SRCLEN_M           0xc000
+#define        HIFN_MAC_CMD_SRCLEN_S           14
+
+/*
+ * MAC POS IPsec initiates authentication after encryption on encodes
+ * and before decryption on decodes.
+ */
+#define        HIFN_MAC_CMD_POS_IPSEC          0x0200
+#define        HIFN_MAC_CMD_NEW_KEY            0x0800
+
+/*
+ * The poll frequency and poll scalar defines are unshifted values used
+ * to set fields in the DMA Configuration Register.
+ */
+#ifndef HIFN_POLL_FREQUENCY
+#define        HIFN_POLL_FREQUENCY     0x1
+#endif
+
+#ifndef HIFN_POLL_SCALAR
+#define        HIFN_POLL_SCALAR        0x0
+#endif
+
+#define        HIFN_MAX_SEGLEN         0xffff          /* maximum dma segment len */
+#define        HIFN_MAX_DMALEN         0x3ffff         /* maximum dma length */
+#endif /* __HIFN_H__ */
--- /dev/null
+++ b/crypto/ocf/hifn/hifn7751var.h
@@ -0,0 +1,369 @@
+/* $FreeBSD: src/sys/dev/hifn/hifn7751var.h,v 1.9 2007/03/21 03:42:49 sam Exp $ */
+/*     $OpenBSD: hifn7751var.h,v 1.42 2002/04/08 17:49:42 jason Exp $  */
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *                     http://www.netsec.net
+ *
+ * Please send any comments, feedback, bug-fixes, or feature requests to
+ * software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+
+#ifndef __HIFN7751VAR_H__
+#define __HIFN7751VAR_H__
+
+#ifdef __KERNEL__
+
+/*
+ * Some configurable values for the driver.  By default command+result
+ * descriptor rings are the same size.  The src+dst descriptor rings
+ * are sized at 3.5x the number of potential commands.  Slower parts
+ * (e.g. 7951) tend to run out of src descriptors; faster parts (7811)
+ * src+cmd/result descriptors.  It's not clear that increasing the size
+ * of the descriptor rings helps performance significantly as other
+ * factors tend to come into play (e.g. copying misaligned packets).
+ */
+#define        HIFN_D_CMD_RSIZE        24      /* command descriptors */
+#define        HIFN_D_SRC_RSIZE        ((HIFN_D_CMD_RSIZE * 7) / 2)    /* source descriptors */
+#define        HIFN_D_RES_RSIZE        HIFN_D_CMD_RSIZE        /* result descriptors */
+#define        HIFN_D_DST_RSIZE        HIFN_D_SRC_RSIZE        /* destination descriptors */
+
+/*
+ *  Length values for cryptography
+ */
+#define HIFN_DES_KEY_LENGTH            8
+#define HIFN_3DES_KEY_LENGTH           24
+#define HIFN_MAX_CRYPT_KEY_LENGTH      HIFN_3DES_KEY_LENGTH
+#define HIFN_IV_LENGTH                 8
+#define        HIFN_AES_IV_LENGTH              16
+#define HIFN_MAX_IV_LENGTH             HIFN_AES_IV_LENGTH
+
+/*
+ *  Length values for authentication
+ */
+#define HIFN_MAC_KEY_LENGTH            64
+#define HIFN_MD5_LENGTH                        16
+#define HIFN_SHA1_LENGTH               20
+#define HIFN_MAC_TRUNC_LENGTH          12
+
+#define MAX_SCATTER 64
+
+/*
+ * Data structure to hold all 4 rings and any other ring related data.
+ */
+struct hifn_dma {
+       /*
+        *  Descriptor rings.  We add +1 to the size to accomidate the
+        *  jump descriptor.
+        */
+       struct hifn_desc        cmdr[HIFN_D_CMD_RSIZE+1];
+       struct hifn_desc        srcr[HIFN_D_SRC_RSIZE+1];
+       struct hifn_desc        dstr[HIFN_D_DST_RSIZE+1];
+       struct hifn_desc        resr[HIFN_D_RES_RSIZE+1];
+
+       struct hifn_command     *hifn_commands[HIFN_D_RES_RSIZE];
+
+       u_char                  command_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_COMMAND];
+       u_char                  result_bufs[HIFN_D_CMD_RSIZE][HIFN_MAX_RESULT];
+       u_int32_t               slop[HIFN_D_CMD_RSIZE];
+
+       u_int64_t               test_src, test_dst;
+
+       /*
+        *  Our current positions for insertion and removal from the desriptor
+        *  rings. 
+        */
+       int                     cmdi, srci, dsti, resi;
+       volatile int            cmdu, srcu, dstu, resu;
+       int                     cmdk, srck, dstk, resk;
+};
+
+struct hifn_session {
+       int hs_used;
+       int hs_mlen;
+       u_int8_t hs_iv[HIFN_MAX_IV_LENGTH];
+};
+
+#define        HIFN_RING_SYNC(sc, r, i, f)                                     \
+       /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+#define        HIFN_CMDR_SYNC(sc, i, f)        HIFN_RING_SYNC((sc), cmdr, (i), (f))
+#define        HIFN_RESR_SYNC(sc, i, f)        HIFN_RING_SYNC((sc), resr, (i), (f))
+#define        HIFN_SRCR_SYNC(sc, i, f)        HIFN_RING_SYNC((sc), srcr, (i), (f))
+#define        HIFN_DSTR_SYNC(sc, i, f)        HIFN_RING_SYNC((sc), dstr, (i), (f))
+
+#define        HIFN_CMD_SYNC(sc, i, f)                                         \
+       /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+#define        HIFN_RES_SYNC(sc, i, f)                                         \
+       /* DAVIDM bus_dmamap_sync((sc)->sc_dmat, (sc)->sc_dmamap, (f)) */
+
+typedef int bus_size_t;
+
+/*
+ * Holds data specific to a single HIFN board.
+ */
+struct hifn_softc {
+       softc_device_decl                sc_dev;
+
+       struct pci_dev          *sc_pcidev;     /* PCI device pointer */
+       spinlock_t              sc_mtx;         /* per-instance lock */
+
+       int                     sc_num;         /* for multiple devs */
+
+       ocf_iomem_t             sc_bar0;
+       bus_size_t              sc_bar0_lastreg;/* bar0 last reg written */
+       ocf_iomem_t             sc_bar1;
+       bus_size_t              sc_bar1_lastreg;/* bar1 last reg written */
+
+       int                     sc_irq;
+
+       u_int32_t               sc_dmaier;
+       u_int32_t               sc_drammodel;   /* 1=dram, 0=sram */
+       u_int32_t               sc_pllconfig;   /* 7954/7955/7956 PLL config */
+
+       struct hifn_dma         *sc_dma;
+       dma_addr_t              sc_dma_physaddr;/* physical address of sc_dma */
+
+       int                     sc_dmansegs;
+       int32_t                 sc_cid;
+       int                     sc_maxses;
+       int                     sc_nsessions;
+       struct hifn_session     *sc_sessions;
+       int                     sc_ramsize;
+       int                     sc_flags;
+#define        HIFN_HAS_RNG            0x1     /* includes random number generator */
+#define        HIFN_HAS_PUBLIC         0x2     /* includes public key support */
+#define        HIFN_HAS_AES            0x4     /* includes AES support */
+#define        HIFN_IS_7811            0x8     /* Hifn 7811 part */
+#define        HIFN_IS_7956            0x10    /* Hifn 7956/7955 don't have SDRAM */
+
+       struct timer_list       sc_tickto;      /* for managing DMA */
+
+       int                     sc_rngfirst;
+       int                     sc_rnghz;       /* RNG polling frequency */
+
+       int                     sc_c_busy;      /* command ring busy */
+       int                     sc_s_busy;      /* source data ring busy */
+       int                     sc_d_busy;      /* destination data ring busy */
+       int                     sc_r_busy;      /* result ring busy */
+       int                     sc_active;      /* for initial countdown */
+       int                     sc_needwakeup;  /* ops q'd wating on resources */
+       int                     sc_curbatch;    /* # ops submitted w/o int */
+       int                     sc_suspended;
+#ifdef HIFN_VULCANDEV
+       struct cdev            *sc_pkdev;
+#endif
+};
+
+#define        HIFN_LOCK(_sc)          spin_lock_irqsave(&(_sc)->sc_mtx, l_flags)
+#define        HIFN_UNLOCK(_sc)        spin_unlock_irqrestore(&(_sc)->sc_mtx, l_flags)
+
+/*
+ *  hifn_command_t
+ *
+ *  This is the control structure used to pass commands to hifn_encrypt().
+ *
+ *  flags
+ *  -----
+ *  Flags is the bitwise "or" values for command configuration.  A single
+ *  encrypt direction needs to be set:
+ *
+ *     HIFN_ENCODE or HIFN_DECODE
+ *
+ *  To use cryptography, a single crypto algorithm must be included:
+ *
+ *     HIFN_CRYPT_3DES or HIFN_CRYPT_DES
+ *
+ *  To use authentication is used, a single MAC algorithm must be included:
+ *
+ *     HIFN_MAC_MD5 or HIFN_MAC_SHA1
+ *
+ *  By default MD5 uses a 16 byte hash and SHA-1 uses a 20 byte hash.
+ *  If the value below is set, hash values are truncated or assumed
+ *  truncated to 12 bytes:
+ *
+ *     HIFN_MAC_TRUNC
+ *
+ *  Keys for encryption and authentication can be sent as part of a command,
+ *  or the last key value used with a particular session can be retrieved
+ *  and used again if either of these flags are not specified.
+ *
+ *     HIFN_CRYPT_NEW_KEY, HIFN_MAC_NEW_KEY
+ *
+ *  session_num
+ *  -----------
+ *  A number between 0 and 2048 (for DRAM models) or a number between 
+ *  0 and 768 (for SRAM models).  Those who don't want to use session
+ *  numbers should leave value at zero and send a new crypt key and/or
+ *  new MAC key on every command.  If you use session numbers and
+ *  don't send a key with a command, the last key sent for that same
+ *  session number will be used.
+ *
+ *  Warning:  Using session numbers and multiboard at the same time
+ *            is currently broken.
+ *
+ *  mbuf
+ *  ----
+ *  Either fill in the mbuf pointer and npa=0 or
+ *      fill packp[] and packl[] and set npa to > 0
+ * 
+ *  mac_header_skip
+ *  ---------------
+ *  The number of bytes of the source_buf that are skipped over before
+ *  authentication begins.  This must be a number between 0 and 2^16-1
+ *  and can be used by IPsec implementers to skip over IP headers.
+ *  *** Value ignored if authentication not used ***
+ *
+ *  crypt_header_skip
+ *  -----------------
+ *  The number of bytes of the source_buf that are skipped over before
+ *  the cryptographic operation begins.  This must be a number between 0
+ *  and 2^16-1.  For IPsec, this number will always be 8 bytes larger
+ *  than the auth_header_skip (to skip over the ESP header).
+ *  *** Value ignored if cryptography not used ***
+ *
+ */
+struct hifn_operand {
+       union {
+               struct sk_buff *skb;
+               struct uio *io;
+               unsigned char *buf;
+       } u;
+       void            *map;
+       bus_size_t      mapsize;
+       int             nsegs;
+       struct {
+           dma_addr_t  ds_addr;
+           int         ds_len;
+       } segs[MAX_SCATTER];
+};
+
+struct hifn_command {
+       u_int16_t session_num;
+       u_int16_t base_masks, cry_masks, mac_masks;
+       u_int8_t iv[HIFN_MAX_IV_LENGTH], *ck, mac[HIFN_MAC_KEY_LENGTH];
+       int cklen;
+       int sloplen, slopidx;
+
+       struct hifn_operand src;
+       struct hifn_operand dst;
+
+       struct hifn_softc *softc;
+       struct cryptop *crp;
+       struct cryptodesc *enccrd, *maccrd;
+};
+
+#define        src_skb         src.u.skb
+#define        src_io          src.u.io
+#define        src_map         src.map
+#define        src_mapsize     src.mapsize
+#define        src_segs        src.segs
+#define        src_nsegs       src.nsegs
+#define        src_buf         src.u.buf
+
+#define        dst_skb         dst.u.skb
+#define        dst_io          dst.u.io
+#define        dst_map         dst.map
+#define        dst_mapsize     dst.mapsize
+#define        dst_segs        dst.segs
+#define        dst_nsegs       dst.nsegs
+#define        dst_buf         dst.u.buf
+
+/*
+ *  Return values for hifn_crypto()
+ */
+#define HIFN_CRYPTO_SUCCESS    0
+#define HIFN_CRYPTO_BAD_INPUT  (-1)
+#define HIFN_CRYPTO_RINGS_FULL (-2)
+
+/**************************************************************************
+ *
+ *  Function:  hifn_crypto
+ *
+ *  Purpose:   Called by external drivers to begin an encryption on the
+ *             HIFN board.
+ *
+ *  Blocking/Non-blocking Issues
+ *  ============================
+ *  The driver cannot block in hifn_crypto (no calls to tsleep) currently.
+ *  hifn_crypto() returns HIFN_CRYPTO_RINGS_FULL if there is not enough
+ *  room in any of the rings for the request to proceed.
+ *
+ *  Return Values
+ *  =============
+ *  0 for success, negative values on error
+ *
+ *  Defines for negative error codes are:
+ *  
+ *    HIFN_CRYPTO_BAD_INPUT  :  The passed in command had invalid settings.
+ *    HIFN_CRYPTO_RINGS_FULL :  All DMA rings were full and non-blocking
+ *                              behaviour was requested.
+ *
+ *************************************************************************/
+
+/*
+ * Convert back and forth from 'sid' to 'card' and 'session'
+ */
+#define HIFN_CARD(sid)         (((sid) & 0xf0000000) >> 28)
+#define HIFN_SESSION(sid)      ((sid) & 0x000007ff)
+#define HIFN_SID(crd,ses)      (((crd) << 28) | ((ses) & 0x7ff))
+
+#endif /* _KERNEL */
+
+struct hifn_stats {
+       u_int64_t hst_ibytes;
+       u_int64_t hst_obytes;
+       u_int32_t hst_ipackets;
+       u_int32_t hst_opackets;
+       u_int32_t hst_invalid;
+       u_int32_t hst_nomem;            /* malloc or one of hst_nomem_* */
+       u_int32_t hst_abort;
+       u_int32_t hst_noirq;            /* IRQ for no reason */
+       u_int32_t hst_totbatch;         /* ops submitted w/o interrupt */
+       u_int32_t hst_maxbatch;         /* max ops submitted together */
+       u_int32_t hst_unaligned;        /* unaligned src caused copy */
+       /*
+        * The following divides hst_nomem into more specific buckets.
+        */
+       u_int32_t hst_nomem_map;        /* bus_dmamap_create failed */
+       u_int32_t hst_nomem_load;       /* bus_dmamap_load_* failed */
+       u_int32_t hst_nomem_mbuf;       /* MGET* failed */
+       u_int32_t hst_nomem_mcl;        /* MCLGET* failed */
+       u_int32_t hst_nomem_cr;         /* out of command/result descriptor */
+       u_int32_t hst_nomem_sd;         /* out of src/dst descriptors */
+};
+
+#endif /* __HIFN7751VAR_H__ */
--- /dev/null
+++ b/crypto/ocf/hifn/hifn7751.c
@@ -0,0 +1,2970 @@
+/*     $OpenBSD: hifn7751.c,v 1.120 2002/05/17 00:33:34 deraadt Exp $  */
+
+/*-
+ * Invertex AEON / Hifn 7751 driver
+ * Copyright (c) 1999 Invertex Inc. All rights reserved.
+ * Copyright (c) 1999 Theo de Raadt
+ * Copyright (c) 2000-2001 Network Security Technologies, Inc.
+ *                     http://www.netsec.net
+ * Copyright (c) 2003 Hifn Inc.
+ *
+ * This driver is based on a previous driver by Invertex, for which they
+ * requested:  Please send any comments, feedback, bug-fixes, or feature
+ * requests to software@invertex.com.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ *
+__FBSDID("$FreeBSD: src/sys/dev/hifn/hifn7751.c,v 1.40 2007/03/21 03:42:49 sam Exp $");
+ */
+
+/*
+ * Driver for various Hifn encryption processors.
+ */
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+#include <hifn/hifn7751reg.h>
+#include <hifn/hifn7751var.h>
+
+#if 1
+#define        DPRINTF(a...)   if (hifn_debug) { \
+                                                       printk("%s: ", sc ? \
+                                                               device_get_nameunit(sc->sc_dev) : "hifn"); \
+                                                       printk(a); \
+                                               } else
+#else
+#define        DPRINTF(a...)
+#endif
+
+static inline int
+pci_get_revid(struct pci_dev *dev)
+{
+       u8 rid = 0;
+       pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
+       return rid;
+}
+
+static struct hifn_stats hifnstats;
+
+#define        debug hifn_debug
+int hifn_debug = 0;
+module_param(hifn_debug, int, 0644);
+MODULE_PARM_DESC(hifn_debug, "Enable debug");
+
+int hifn_maxbatch = 1;
+module_param(hifn_maxbatch, int, 0644);
+MODULE_PARM_DESC(hifn_maxbatch, "max ops to batch w/o interrupt");
+
+#ifdef MODULE_PARM
+char *hifn_pllconfig = NULL;
+MODULE_PARM(hifn_pllconfig, "s");
+#else
+char hifn_pllconfig[32]; /* This setting is RO after loading */
+module_param_string(hifn_pllconfig, hifn_pllconfig, 32, 0444);
+#endif
+MODULE_PARM_DESC(hifn_pllconfig, "PLL config, ie., pci66, ext33, ...");
+
+#ifdef HIFN_VULCANDEV
+#include <sys/conf.h>
+#include <sys/uio.h>
+
+static struct cdevsw vulcanpk_cdevsw; /* forward declaration */
+#endif
+
+/*
+ * Prototypes and count for the pci_device structure
+ */
+static int  hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent);
+static void hifn_remove(struct pci_dev *dev);
+
+static int hifn_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int hifn_freesession(device_t, u_int64_t);
+static int hifn_process(device_t, struct cryptop *, int);
+
+static device_method_t hifn_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, hifn_newsession),
+       DEVMETHOD(cryptodev_freesession,hifn_freesession),
+       DEVMETHOD(cryptodev_process,    hifn_process),
+};
+
+static void hifn_reset_board(struct hifn_softc *, int);
+static void hifn_reset_puc(struct hifn_softc *);
+static void hifn_puc_wait(struct hifn_softc *);
+static int hifn_enable_crypto(struct hifn_softc *);
+static void hifn_set_retry(struct hifn_softc *sc);
+static void hifn_init_dma(struct hifn_softc *);
+static void hifn_init_pci_registers(struct hifn_softc *);
+static int hifn_sramsize(struct hifn_softc *);
+static int hifn_dramsize(struct hifn_softc *);
+static int hifn_ramtype(struct hifn_softc *);
+static void hifn_sessions(struct hifn_softc *);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hifn_intr(int irq, void *arg);
+#else
+static irqreturn_t hifn_intr(int irq, void *arg, struct pt_regs *regs);
+#endif
+static u_int hifn_write_command(struct hifn_command *, u_int8_t *);
+static u_int32_t hifn_next_signature(u_int32_t a, u_int cnt);
+static void hifn_callback(struct hifn_softc *, struct hifn_command *, u_int8_t *);
+static int hifn_crypto(struct hifn_softc *, struct hifn_command *, struct cryptop *, int);
+static int hifn_readramaddr(struct hifn_softc *, int, u_int8_t *);
+static int hifn_writeramaddr(struct hifn_softc *, int, u_int8_t *);
+static int hifn_dmamap_load_src(struct hifn_softc *, struct hifn_command *);
+static int hifn_dmamap_load_dst(struct hifn_softc *, struct hifn_command *);
+static int hifn_init_pubrng(struct hifn_softc *);
+static void hifn_tick(unsigned long arg);
+static void hifn_abort(struct hifn_softc *);
+static void hifn_alloc_slot(struct hifn_softc *, int *, int *, int *, int *);
+
+static void hifn_write_reg_0(struct hifn_softc *, bus_size_t, u_int32_t);
+static void hifn_write_reg_1(struct hifn_softc *, bus_size_t, u_int32_t);
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static int hifn_read_random(void *arg, u_int32_t *buf, int len);
+#endif
+
+#define HIFN_MAX_CHIPS 8
+static struct hifn_softc *hifn_chip_idx[HIFN_MAX_CHIPS];
+
+static __inline u_int32_t
+READ_REG_0(struct hifn_softc *sc, bus_size_t reg)
+{
+       u_int32_t v = readl(sc->sc_bar0 + reg);
+       sc->sc_bar0_lastreg = (bus_size_t) -1;
+       return (v);
+}
+#define        WRITE_REG_0(sc, reg, val)       hifn_write_reg_0(sc, reg, val)
+
+static __inline u_int32_t
+READ_REG_1(struct hifn_softc *sc, bus_size_t reg)
+{
+       u_int32_t v = readl(sc->sc_bar1 + reg);
+       sc->sc_bar1_lastreg = (bus_size_t) -1;
+       return (v);
+}
+#define        WRITE_REG_1(sc, reg, val)       hifn_write_reg_1(sc, reg, val)
+
+/*
+ * map in a given buffer (great on some arches :-)
+ */
+
+static int
+pci_map_uio(struct hifn_softc *sc, struct hifn_operand *buf, struct uio *uio)
+{
+       struct iovec *iov = uio->uio_iov;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       buf->mapsize = 0;
+       for (buf->nsegs = 0; buf->nsegs < uio->uio_iovcnt; ) {
+               buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
+                               iov->iov_base, iov->iov_len,
+                               PCI_DMA_BIDIRECTIONAL);
+               buf->segs[buf->nsegs].ds_len = iov->iov_len;
+               buf->mapsize += iov->iov_len;
+               iov++;
+               buf->nsegs++;
+       }
+       /* identify this buffer by the first segment */
+       buf->map = (void *) buf->segs[0].ds_addr;
+       return(0);
+}
+
+/*
+ * map in a given sk_buff
+ */
+
+static int
+pci_map_skb(struct hifn_softc *sc,struct hifn_operand *buf,struct sk_buff *skb)
+{
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       buf->mapsize = 0;
+
+       buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
+                       skb->data, skb_headlen(skb), PCI_DMA_BIDIRECTIONAL);
+       buf->segs[0].ds_len = skb_headlen(skb);
+       buf->mapsize += buf->segs[0].ds_len;
+
+       buf->nsegs = 1;
+
+       for (i = 0; i < skb_shinfo(skb)->nr_frags; ) {
+               buf->segs[buf->nsegs].ds_len = skb_shinfo(skb)->frags[i].size;
+               buf->segs[buf->nsegs].ds_addr = pci_map_single(sc->sc_pcidev,
+                               page_address(skb_shinfo(skb)->frags[i].page) +
+                                       skb_shinfo(skb)->frags[i].page_offset,
+                               buf->segs[buf->nsegs].ds_len, PCI_DMA_BIDIRECTIONAL);
+               buf->mapsize += buf->segs[buf->nsegs].ds_len;
+               buf->nsegs++;
+       }
+
+       /* identify this buffer by the first segment */
+       buf->map = (void *) buf->segs[0].ds_addr;
+       return(0);
+}
+
+/*
+ * map in a given contiguous buffer
+ */
+
+static int
+pci_map_buf(struct hifn_softc *sc,struct hifn_operand *buf, void *b, int len)
+{
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       buf->mapsize = 0;
+       buf->segs[0].ds_addr = pci_map_single(sc->sc_pcidev,
+                       b, len, PCI_DMA_BIDIRECTIONAL);
+       buf->segs[0].ds_len = len;
+       buf->mapsize += buf->segs[0].ds_len;
+       buf->nsegs = 1;
+
+       /* identify this buffer by the first segment */
+       buf->map = (void *) buf->segs[0].ds_addr;
+       return(0);
+}
+
+#if 0 /* not needed at this time */
+static void
+pci_sync_iov(struct hifn_softc *sc, struct hifn_operand *buf)
+{
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       for (i = 0; i < buf->nsegs; i++)
+               pci_dma_sync_single_for_cpu(sc->sc_pcidev, buf->segs[i].ds_addr,
+                               buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+}
+#endif
+
+static void
+pci_unmap_buf(struct hifn_softc *sc, struct hifn_operand *buf)
+{
+       int i;
+       DPRINTF("%s()\n", __FUNCTION__);
+       for (i = 0; i < buf->nsegs; i++) {
+               pci_unmap_single(sc->sc_pcidev, buf->segs[i].ds_addr,
+                               buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+               buf->segs[i].ds_addr = 0;
+               buf->segs[i].ds_len = 0;
+       }
+       buf->nsegs = 0;
+       buf->mapsize = 0;
+       buf->map = 0;
+}
+
+static const char*
+hifn_partname(struct hifn_softc *sc)
+{
+       /* XXX sprintf numbers when not decoded */
+       switch (pci_get_vendor(sc->sc_pcidev)) {
+       case PCI_VENDOR_HIFN:
+               switch (pci_get_device(sc->sc_pcidev)) {
+               case PCI_PRODUCT_HIFN_6500:     return "Hifn 6500";
+               case PCI_PRODUCT_HIFN_7751:     return "Hifn 7751";
+               case PCI_PRODUCT_HIFN_7811:     return "Hifn 7811";
+               case PCI_PRODUCT_HIFN_7951:     return "Hifn 7951";
+               case PCI_PRODUCT_HIFN_7955:     return "Hifn 7955";
+               case PCI_PRODUCT_HIFN_7956:     return "Hifn 7956";
+               }
+               return "Hifn unknown-part";
+       case PCI_VENDOR_INVERTEX:
+               switch (pci_get_device(sc->sc_pcidev)) {
+               case PCI_PRODUCT_INVERTEX_AEON: return "Invertex AEON";
+               }
+               return "Invertex unknown-part";
+       case PCI_VENDOR_NETSEC:
+               switch (pci_get_device(sc->sc_pcidev)) {
+               case PCI_PRODUCT_NETSEC_7751:   return "NetSec 7751";
+               }
+               return "NetSec unknown-part";
+       }
+       return "Unknown-vendor unknown-part";
+}
+
+static u_int
+checkmaxmin(struct pci_dev *dev, const char *what, u_int v, u_int min, u_int max)
+{
+       struct hifn_softc *sc = pci_get_drvdata(dev);
+       if (v > max) {
+               device_printf(sc->sc_dev, "Warning, %s %u out of range, "
+                       "using max %u\n", what, v, max);
+               v = max;
+       } else if (v < min) {
+               device_printf(sc->sc_dev, "Warning, %s %u out of range, "
+                       "using min %u\n", what, v, min);
+               v = min;
+       }
+       return v;
+}
+
+/*
+ * Select PLL configuration for 795x parts.  This is complicated in
+ * that we cannot determine the optimal parameters without user input.
+ * The reference clock is derived from an external clock through a
+ * multiplier.  The external clock is either the host bus (i.e. PCI)
+ * or an external clock generator.  When using the PCI bus we assume
+ * the clock is either 33 or 66 MHz; for an external source we cannot
+ * tell the speed.
+ *
+ * PLL configuration is done with a string: "pci" for PCI bus, or "ext"
+ * for an external source, followed by the frequency.  We calculate
+ * the appropriate multiplier and PLL register contents accordingly.
+ * When no configuration is given we default to "pci66" since that
+ * always will allow the card to work.  If a card is using the PCI
+ * bus clock and in a 33MHz slot then it will be operating at half
+ * speed until the correct information is provided.
+ *
+ * We use a default setting of "ext66" because according to Mike Ham
+ * of HiFn, almost every board in existence has an external crystal
+ * populated at 66Mhz. Using PCI can be a problem on modern motherboards,
+ * because PCI33 can have clocks from 0 to 33Mhz, and some have
+ * non-PCI-compliant spread-spectrum clocks, which can confuse the pll.
+ */
+static void
+hifn_getpllconfig(struct pci_dev *dev, u_int *pll)
+{
+       const char *pllspec = hifn_pllconfig;
+       u_int freq, mul, fl, fh;
+       u_int32_t pllconfig;
+       char *nxt;
+
+       if (pllspec == NULL)
+               pllspec = "ext66";
+       fl = 33, fh = 66;
+       pllconfig = 0;
+       if (strncmp(pllspec, "ext", 3) == 0) {
+               pllspec += 3;
+               pllconfig |= HIFN_PLL_REF_SEL;
+               switch (pci_get_device(dev)) {
+               case PCI_PRODUCT_HIFN_7955:
+               case PCI_PRODUCT_HIFN_7956:
+                       fl = 20, fh = 100;
+                       break;
+#ifdef notyet
+               case PCI_PRODUCT_HIFN_7954:
+                       fl = 20, fh = 66;
+                       break;
+#endif
+               }
+       } else if (strncmp(pllspec, "pci", 3) == 0)
+               pllspec += 3;
+       freq = strtoul(pllspec, &nxt, 10);
+       if (nxt == pllspec)
+               freq = 66;
+       else
+               freq = checkmaxmin(dev, "frequency", freq, fl, fh);
+       /*
+        * Calculate multiplier.  We target a Fck of 266 MHz,
+        * allowing only even values, possibly rounded down.
+        * Multipliers > 8 must set the charge pump current.
+        */
+       mul = checkmaxmin(dev, "PLL divisor", (266 / freq) &~ 1, 2, 12);
+       pllconfig |= (mul / 2 - 1) << HIFN_PLL_ND_SHIFT;
+       if (mul > 8)
+               pllconfig |= HIFN_PLL_IS;
+       *pll = pllconfig;
+}
+
+/*
+ * Attach an interface that successfully probed.
+ */
+static int
+hifn_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+       struct hifn_softc *sc = NULL;
+       char rbase;
+       u_int16_t ena, rev;
+       int rseg, rc;
+       unsigned long mem_start, mem_len;
+       static int num_chips = 0;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (pci_enable_device(dev) < 0)
+               return(-ENODEV);
+
+       if (pci_set_mwi(dev))
+               return(-ENODEV);
+
+       if (!dev->irq) {
+               printk("hifn: found device with no IRQ assigned. check BIOS settings!");
+               pci_disable_device(dev);
+               return(-ENODEV);
+       }
+
+       sc = (struct hifn_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+       if (!sc)
+               return(-ENOMEM);
+       memset(sc, 0, sizeof(*sc));
+
+       softc_device_init(sc, "hifn", num_chips, hifn_methods);
+
+       sc->sc_pcidev = dev;
+       sc->sc_irq = -1;
+       sc->sc_cid = -1;
+       sc->sc_num = num_chips++;
+       if (sc->sc_num < HIFN_MAX_CHIPS)
+               hifn_chip_idx[sc->sc_num] = sc;
+
+       pci_set_drvdata(sc->sc_pcidev, sc);
+
+       spin_lock_init(&sc->sc_mtx);
+
+       /* XXX handle power management */
+
+       /*
+        * The 7951 and 795x have a random number generator and
+        * public key support; note this.
+        */
+       if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+           (pci_get_device(dev) == PCI_PRODUCT_HIFN_7951 ||
+            pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
+            pci_get_device(dev) == PCI_PRODUCT_HIFN_7956))
+               sc->sc_flags = HIFN_HAS_RNG | HIFN_HAS_PUBLIC;
+       /*
+        * The 7811 has a random number generator and
+        * we also note it's identity 'cuz of some quirks.
+        */
+       if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+           pci_get_device(dev) == PCI_PRODUCT_HIFN_7811)
+               sc->sc_flags |= HIFN_IS_7811 | HIFN_HAS_RNG;
+
+       /*
+        * The 795x parts support AES.
+        */
+       if (pci_get_vendor(dev) == PCI_VENDOR_HIFN &&
+           (pci_get_device(dev) == PCI_PRODUCT_HIFN_7955 ||
+            pci_get_device(dev) == PCI_PRODUCT_HIFN_7956)) {
+               sc->sc_flags |= HIFN_IS_7956 | HIFN_HAS_AES;
+               /*
+                * Select PLL configuration.  This depends on the
+                * bus and board design and must be manually configured
+                * if the default setting is unacceptable.
+                */
+               hifn_getpllconfig(dev, &sc->sc_pllconfig);
+       }
+
+       /*
+        * Setup PCI resources. Note that we record the bus
+        * tag and handle for each register mapping, this is
+        * used by the READ_REG_0, WRITE_REG_0, READ_REG_1,
+        * and WRITE_REG_1 macros throughout the driver.
+        */
+       mem_start = pci_resource_start(sc->sc_pcidev, 0);
+       mem_len   = pci_resource_len(sc->sc_pcidev, 0);
+       sc->sc_bar0 = (ocf_iomem_t) ioremap(mem_start, mem_len);
+       if (!sc->sc_bar0) {
+               device_printf(sc->sc_dev, "cannot map bar%d register space\n", 0);
+               goto fail;
+       }
+       sc->sc_bar0_lastreg = (bus_size_t) -1;
+
+       mem_start = pci_resource_start(sc->sc_pcidev, 1);
+       mem_len   = pci_resource_len(sc->sc_pcidev, 1);
+       sc->sc_bar1 = (ocf_iomem_t) ioremap(mem_start, mem_len);
+       if (!sc->sc_bar1) {
+               device_printf(sc->sc_dev, "cannot map bar%d register space\n", 1);
+               goto fail;
+       }
+       sc->sc_bar1_lastreg = (bus_size_t) -1;
+
+       /* fix up the bus size */
+       if (pci_set_dma_mask(dev, DMA_32BIT_MASK)) {
+               device_printf(sc->sc_dev, "No usable DMA configuration, aborting.\n");
+               goto fail;
+       }
+       if (pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK)) {
+               device_printf(sc->sc_dev,
+                               "No usable consistent DMA configuration, aborting.\n");
+               goto fail;
+       }
+
+       hifn_set_retry(sc);
+
+       /*
+        * Setup the area where the Hifn DMA's descriptors
+        * and associated data structures.
+        */
+       sc->sc_dma = (struct hifn_dma *) pci_alloc_consistent(dev,
+                       sizeof(*sc->sc_dma),
+                       &sc->sc_dma_physaddr);
+       if (!sc->sc_dma) {
+               device_printf(sc->sc_dev, "cannot alloc sc_dma\n");
+               goto fail;
+       }
+       bzero(sc->sc_dma, sizeof(*sc->sc_dma));
+
+       /*
+        * Reset the board and do the ``secret handshake''
+        * to enable the crypto support.  Then complete the
+        * initialization procedure by setting up the interrupt
+        * and hooking in to the system crypto support so we'll
+        * get used for system services like the crypto device,
+        * IPsec, RNG device, etc.
+        */
+       hifn_reset_board(sc, 0);
+
+       if (hifn_enable_crypto(sc) != 0) {
+               device_printf(sc->sc_dev, "crypto enabling failed\n");
+               goto fail;
+       }
+       hifn_reset_puc(sc);
+
+       hifn_init_dma(sc);
+       hifn_init_pci_registers(sc);
+
+       pci_set_master(sc->sc_pcidev);
+
+       /* XXX can't dynamically determine ram type for 795x; force dram */
+       if (sc->sc_flags & HIFN_IS_7956)
+               sc->sc_drammodel = 1;
+       else if (hifn_ramtype(sc))
+               goto fail;
+
+       if (sc->sc_drammodel == 0)
+               hifn_sramsize(sc);
+       else
+               hifn_dramsize(sc);
+
+       /*
+        * Workaround for NetSec 7751 rev A: half ram size because two
+        * of the address lines were left floating
+        */
+       if (pci_get_vendor(dev) == PCI_VENDOR_NETSEC &&
+           pci_get_device(dev) == PCI_PRODUCT_NETSEC_7751 &&
+           pci_get_revid(dev) == 0x61) /*XXX???*/
+               sc->sc_ramsize >>= 1;
+
+       /*
+        * Arrange the interrupt line.
+        */
+       rc = request_irq(dev->irq, hifn_intr, IRQF_SHARED, "hifn", sc);
+       if (rc) {
+               device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
+               goto fail;
+       }
+       sc->sc_irq = dev->irq;
+
+       hifn_sessions(sc);
+
+       /*
+        * NB: Keep only the low 16 bits; this masks the chip id
+        *     from the 7951.
+        */
+       rev = READ_REG_1(sc, HIFN_1_REVID) & 0xffff;
+
+       rseg = sc->sc_ramsize / 1024;
+       rbase = 'K';
+       if (sc->sc_ramsize >= (1024 * 1024)) {
+               rbase = 'M';
+               rseg /= 1024;
+       }
+       device_printf(sc->sc_dev, "%s, rev %u, %d%cB %cram",
+               hifn_partname(sc), rev,
+               rseg, rbase, sc->sc_drammodel ? 'd' : 's');
+       if (sc->sc_flags & HIFN_IS_7956)
+               printf(", pll=0x%x<%s clk, %ux mult>",
+                       sc->sc_pllconfig,
+                       sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
+                       2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
+       printf("\n");
+
+       sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+       if (sc->sc_cid < 0) {
+               device_printf(sc->sc_dev, "could not get crypto driver id\n");
+               goto fail;
+       }
+
+       WRITE_REG_0(sc, HIFN_0_PUCNFG,
+           READ_REG_0(sc, HIFN_0_PUCNFG) | HIFN_PUCNFG_CHIPID);
+       ena = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+       switch (ena) {
+       case HIFN_PUSTAT_ENA_2:
+               crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0);
+               if (sc->sc_flags & HIFN_HAS_AES)
+                       crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+               /*FALLTHROUGH*/
+       case HIFN_PUSTAT_ENA_1:
+               crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+               break;
+       }
+
+       if (sc->sc_flags & (HIFN_HAS_PUBLIC | HIFN_HAS_RNG))
+               hifn_init_pubrng(sc);
+
+       init_timer(&sc->sc_tickto);
+       sc->sc_tickto.function = hifn_tick;
+       sc->sc_tickto.data = (unsigned long) sc->sc_num;
+       mod_timer(&sc->sc_tickto, jiffies + HZ);
+
+       return (0);
+
+fail:
+    if (sc->sc_cid >= 0)
+        crypto_unregister_all(sc->sc_cid);
+    if (sc->sc_irq != -1)
+        free_irq(sc->sc_irq, sc);
+    if (sc->sc_dma) {
+               /* Turn off DMA polling */
+               WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+                       HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+        pci_free_consistent(sc->sc_pcidev,
+                               sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+       }
+    kfree(sc);
+       return (-ENXIO);
+}
+
+/*
+ * Detach an interface that successfully probed.
+ */
+static void
+hifn_remove(struct pci_dev *dev)
+{
+       struct hifn_softc *sc = pci_get_drvdata(dev);
+       unsigned long l_flags;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       KASSERT(sc != NULL, ("hifn_detach: null software carrier!"));
+
+       /* disable interrupts */
+       HIFN_LOCK(sc);
+       WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
+       HIFN_UNLOCK(sc);
+
+       /*XXX other resources */
+       del_timer_sync(&sc->sc_tickto);
+
+       /* Turn off DMA polling */
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+       crypto_unregister_all(sc->sc_cid);
+
+       free_irq(sc->sc_irq, sc);
+
+       pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+}
+
+
+static int
+hifn_init_pubrng(struct hifn_softc *sc)
+{
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if ((sc->sc_flags & HIFN_IS_7811) == 0) {
+               /* Reset 7951 public key/rng engine */
+               WRITE_REG_1(sc, HIFN_1_PUB_RESET,
+                   READ_REG_1(sc, HIFN_1_PUB_RESET) | HIFN_PUBRST_RESET);
+
+               for (i = 0; i < 100; i++) {
+                       DELAY(1000);
+                       if ((READ_REG_1(sc, HIFN_1_PUB_RESET) &
+                           HIFN_PUBRST_RESET) == 0)
+                               break;
+               }
+
+               if (i == 100) {
+                       device_printf(sc->sc_dev, "public key init failed\n");
+                       return (1);
+               }
+       }
+
+       /* Enable the rng, if available */
+#ifdef CONFIG_OCF_RANDOMHARVEST
+       if (sc->sc_flags & HIFN_HAS_RNG) {
+               if (sc->sc_flags & HIFN_IS_7811) {
+                       u_int32_t r;
+                       r = READ_REG_1(sc, HIFN_1_7811_RNGENA);
+                       if (r & HIFN_7811_RNGENA_ENA) {
+                               r &= ~HIFN_7811_RNGENA_ENA;
+                               WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
+                       }
+                       WRITE_REG_1(sc, HIFN_1_7811_RNGCFG,
+                           HIFN_7811_RNGCFG_DEFL);
+                       r |= HIFN_7811_RNGENA_ENA;
+                       WRITE_REG_1(sc, HIFN_1_7811_RNGENA, r);
+               } else
+                       WRITE_REG_1(sc, HIFN_1_RNG_CONFIG,
+                           READ_REG_1(sc, HIFN_1_RNG_CONFIG) |
+                           HIFN_RNGCFG_ENA);
+
+               sc->sc_rngfirst = 1;
+               crypto_rregister(sc->sc_cid, hifn_read_random, sc);
+       }
+#endif
+
+       /* Enable public key engine, if available */
+       if (sc->sc_flags & HIFN_HAS_PUBLIC) {
+               WRITE_REG_1(sc, HIFN_1_PUB_IEN, HIFN_PUBIEN_DONE);
+               sc->sc_dmaier |= HIFN_DMAIER_PUBDONE;
+               WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+#ifdef HIFN_VULCANDEV
+               sc->sc_pkdev = make_dev(&vulcanpk_cdevsw, 0, 
+                                       UID_ROOT, GID_WHEEL, 0666,
+                                       "vulcanpk");
+               sc->sc_pkdev->si_drv1 = sc;
+#endif
+       }
+
+       return (0);
+}
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static int
+hifn_read_random(void *arg, u_int32_t *buf, int len)
+{
+       struct hifn_softc *sc = (struct hifn_softc *) arg;
+       u_int32_t sts;
+       int i, rc = 0;
+
+       if (len <= 0)
+               return rc;
+
+       if (sc->sc_flags & HIFN_IS_7811) {
+               /* ONLY VALID ON 7811!!!! */
+               for (i = 0; i < 5; i++) {
+                       sts = READ_REG_1(sc, HIFN_1_7811_RNGSTS);
+                       if (sts & HIFN_7811_RNGSTS_UFL) {
+                               device_printf(sc->sc_dev,
+                                             "RNG underflow: disabling\n");
+                               /* DAVIDM perhaps return -1 */
+                               break;
+                       }
+                       if ((sts & HIFN_7811_RNGSTS_RDY) == 0)
+                               break;
+
+                       /*
+                        * There are at least two words in the RNG FIFO
+                        * at this point.
+                        */
+                       if (rc < len)
+                               buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
+                       if (rc < len)
+                               buf[rc++] = READ_REG_1(sc, HIFN_1_7811_RNGDAT);
+               }
+       } else
+               buf[rc++] = READ_REG_1(sc, HIFN_1_RNG_DATA);
+
+       /* NB: discard first data read */
+       if (sc->sc_rngfirst) {
+               sc->sc_rngfirst = 0;
+               rc = 0;
+       }
+
+       return(rc);
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+static void
+hifn_puc_wait(struct hifn_softc *sc)
+{
+       int i;
+       int reg = HIFN_0_PUCTRL;
+
+       if (sc->sc_flags & HIFN_IS_7956) {
+               reg = HIFN_0_PUCTRL2;
+       }
+
+       for (i = 5000; i > 0; i--) {
+               DELAY(1);
+               if (!(READ_REG_0(sc, reg) & HIFN_PUCTRL_RESET))
+                       break;
+       }
+       if (!i)
+               device_printf(sc->sc_dev, "proc unit did not reset(0x%x)\n",
+                               READ_REG_0(sc, HIFN_0_PUCTRL));
+}
+
+/*
+ * Reset the processing unit.
+ */
+static void
+hifn_reset_puc(struct hifn_softc *sc)
+{
+       /* Reset processing unit */
+       int reg = HIFN_0_PUCTRL;
+
+       if (sc->sc_flags & HIFN_IS_7956) {
+               reg = HIFN_0_PUCTRL2;
+       }
+       WRITE_REG_0(sc, reg, HIFN_PUCTRL_DMAENA);
+
+       hifn_puc_wait(sc);
+}
+
+/*
+ * Set the Retry and TRDY registers; note that we set them to
+ * zero because the 7811 locks up when forced to retry (section
+ * 3.6 of "Specification Update SU-0014-04".  Not clear if we
+ * should do this for all Hifn parts, but it doesn't seem to hurt.
+ */
+static void
+hifn_set_retry(struct hifn_softc *sc)
+{
+       DPRINTF("%s()\n", __FUNCTION__);
+       /* NB: RETRY only responds to 8-bit reads/writes */
+       pci_write_config_byte(sc->sc_pcidev, HIFN_RETRY_TIMEOUT, 0);
+       pci_write_config_dword(sc->sc_pcidev, HIFN_TRDY_TIMEOUT, 0);
+}
+
+/*
+ * Resets the board.  Values in the regesters are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+hifn_reset_board(struct hifn_softc *sc, int full)
+{
+       u_int32_t reg;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       /*
+        * Set polling in the DMA configuration register to zero.  0x7 avoids
+        * resetting the board and zeros out the other fields.
+        */
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+       /*
+        * Now that polling has been disabled, we have to wait 1 ms
+        * before resetting the board.
+        */
+       DELAY(1000);
+
+       /* Reset the DMA unit */
+       if (full) {
+               WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MODE);
+               DELAY(1000);
+       } else {
+               WRITE_REG_1(sc, HIFN_1_DMA_CNFG,
+                   HIFN_DMACNFG_MODE | HIFN_DMACNFG_MSTRESET);
+               hifn_reset_puc(sc);
+       }
+
+       KASSERT(sc->sc_dma != NULL, ("hifn_reset_board: null DMA tag!"));
+       bzero(sc->sc_dma, sizeof(*sc->sc_dma));
+
+       /* Bring dma unit out of reset */
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+
+       hifn_puc_wait(sc);
+       hifn_set_retry(sc);
+
+       if (sc->sc_flags & HIFN_IS_7811) {
+               for (reg = 0; reg < 1000; reg++) {
+                       if (READ_REG_1(sc, HIFN_1_7811_MIPSRST) &
+                           HIFN_MIPSRST_CRAMINIT)
+                               break;
+                       DELAY(1000);
+               }
+               if (reg == 1000)
+                       device_printf(sc->sc_dev, ": cram init timeout\n");
+       } else {
+         /* set up DMA configuration register #2 */
+         /* turn off all PK and BAR0 swaps */
+         WRITE_REG_1(sc, HIFN_1_DMA_CNFG2,
+                     (3 << HIFN_DMACNFG2_INIT_WRITE_BURST_SHIFT)|
+                     (3 << HIFN_DMACNFG2_INIT_READ_BURST_SHIFT)|
+                     (2 << HIFN_DMACNFG2_TGT_WRITE_BURST_SHIFT)|
+                     (2 << HIFN_DMACNFG2_TGT_READ_BURST_SHIFT));
+       }
+}
+
+static u_int32_t
+hifn_next_signature(u_int32_t a, u_int cnt)
+{
+       int i;
+       u_int32_t v;
+
+       for (i = 0; i < cnt; i++) {
+
+               /* get the parity */
+               v = a & 0x80080125;
+               v ^= v >> 16;
+               v ^= v >> 8;
+               v ^= v >> 4;
+               v ^= v >> 2;
+               v ^= v >> 1;
+
+               a = (v & 1) ^ (a << 1);
+       }
+
+       return a;
+}
+
+
+/*
+ * Checks to see if crypto is already enabled.  If crypto isn't enable,
+ * "hifn_enable_crypto" is called to enable it.  The check is important,
+ * as enabling crypto twice will lock the board.
+ */
+static int 
+hifn_enable_crypto(struct hifn_softc *sc)
+{
+       u_int32_t dmacfg, ramcfg, encl, addr, i;
+       char offtbl[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+                                         0x00, 0x00, 0x00, 0x00 };
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       ramcfg = READ_REG_0(sc, HIFN_0_PUCNFG);
+       dmacfg = READ_REG_1(sc, HIFN_1_DMA_CNFG);
+
+       /*
+        * The RAM config register's encrypt level bit needs to be set before
+        * every read performed on the encryption level register.
+        */
+       WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
+
+       encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+       /*
+        * Make sure we don't re-unlock.  Two unlocks kills chip until the
+        * next reboot.
+        */
+       if (encl == HIFN_PUSTAT_ENA_1 || encl == HIFN_PUSTAT_ENA_2) {
+#ifdef HIFN_DEBUG
+               if (hifn_debug)
+                       device_printf(sc->sc_dev,
+                           "Strong crypto already enabled!\n");
+#endif
+               goto report;
+       }
+
+       if (encl != 0 && encl != HIFN_PUSTAT_ENA_0) {
+#ifdef HIFN_DEBUG
+               if (hifn_debug)
+                       device_printf(sc->sc_dev,
+                             "Unknown encryption level 0x%x\n", encl);
+#endif
+               return 1;
+       }
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_UNLOCK |
+           HIFN_DMACNFG_MSTRESET | HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+       DELAY(1000);
+       addr = READ_REG_1(sc, HIFN_UNLOCK_SECRET1);
+       DELAY(1000);
+       WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, 0);
+       DELAY(1000);
+
+       for (i = 0; i <= 12; i++) {
+               addr = hifn_next_signature(addr, offtbl[i] + 0x101);
+               WRITE_REG_1(sc, HIFN_UNLOCK_SECRET2, addr);
+
+               DELAY(1000);
+       }
+
+       WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg | HIFN_PUCNFG_CHIPID);
+       encl = READ_REG_0(sc, HIFN_0_PUSTAT) & HIFN_PUSTAT_CHIPENA;
+
+#ifdef HIFN_DEBUG
+       if (hifn_debug) {
+               if (encl != HIFN_PUSTAT_ENA_1 && encl != HIFN_PUSTAT_ENA_2)
+                       device_printf(sc->sc_dev, "Engine is permanently "
+                               "locked until next system reset!\n");
+               else
+                       device_printf(sc->sc_dev, "Engine enabled "
+                               "successfully!\n");
+       }
+#endif
+
+report:
+       WRITE_REG_0(sc, HIFN_0_PUCNFG, ramcfg);
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, dmacfg);
+
+       switch (encl) {
+       case HIFN_PUSTAT_ENA_1:
+       case HIFN_PUSTAT_ENA_2:
+               break;
+       case HIFN_PUSTAT_ENA_0:
+       default:
+               device_printf(sc->sc_dev, "disabled\n");
+               break;
+       }
+
+       return 0;
+}
+
+/*
+ * Give initial values to the registers listed in the "Register Space"
+ * section of the HIFN Software Development reference manual.
+ */
+static void 
+hifn_init_pci_registers(struct hifn_softc *sc)
+{
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /* write fixed values needed by the Initialization registers */
+       WRITE_REG_0(sc, HIFN_0_PUCTRL, HIFN_PUCTRL_DMAENA);
+       WRITE_REG_0(sc, HIFN_0_FIFOCNFG, HIFN_FIFOCNFG_THRESHOLD);
+       WRITE_REG_0(sc, HIFN_0_PUIER, HIFN_PUIER_DSTOVER);
+
+       /* write all 4 ring address registers */
+       WRITE_REG_1(sc, HIFN_1_DMA_CRAR, sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, cmdr[0]));
+       WRITE_REG_1(sc, HIFN_1_DMA_SRAR, sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, srcr[0]));
+       WRITE_REG_1(sc, HIFN_1_DMA_DRAR, sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, dstr[0]));
+       WRITE_REG_1(sc, HIFN_1_DMA_RRAR, sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, resr[0]));
+
+       DELAY(2000);
+
+       /* write status register */
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+           HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS |
+           HIFN_DMACSR_S_CTRL_DIS | HIFN_DMACSR_C_CTRL_DIS |
+           HIFN_DMACSR_D_ABORT | HIFN_DMACSR_D_DONE | HIFN_DMACSR_D_LAST |
+           HIFN_DMACSR_D_WAIT | HIFN_DMACSR_D_OVER |
+           HIFN_DMACSR_R_ABORT | HIFN_DMACSR_R_DONE | HIFN_DMACSR_R_LAST |
+           HIFN_DMACSR_R_WAIT | HIFN_DMACSR_R_OVER |
+           HIFN_DMACSR_S_ABORT | HIFN_DMACSR_S_DONE | HIFN_DMACSR_S_LAST |
+           HIFN_DMACSR_S_WAIT |
+           HIFN_DMACSR_C_ABORT | HIFN_DMACSR_C_DONE | HIFN_DMACSR_C_LAST |
+           HIFN_DMACSR_C_WAIT |
+           HIFN_DMACSR_ENGINE |
+           ((sc->sc_flags & HIFN_HAS_PUBLIC) ?
+               HIFN_DMACSR_PUBDONE : 0) |
+           ((sc->sc_flags & HIFN_IS_7811) ?
+               HIFN_DMACSR_ILLW | HIFN_DMACSR_ILLR : 0));
+
+       sc->sc_d_busy = sc->sc_r_busy = sc->sc_s_busy = sc->sc_c_busy = 0;
+       sc->sc_dmaier |= HIFN_DMAIER_R_DONE | HIFN_DMAIER_C_ABORT |
+           HIFN_DMAIER_D_OVER | HIFN_DMAIER_R_OVER |
+           HIFN_DMAIER_S_ABORT | HIFN_DMAIER_D_ABORT | HIFN_DMAIER_R_ABORT |
+           ((sc->sc_flags & HIFN_IS_7811) ?
+               HIFN_DMAIER_ILLW | HIFN_DMAIER_ILLR : 0);
+       sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
+       WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+
+
+       if (sc->sc_flags & HIFN_IS_7956) {
+               u_int32_t pll;
+
+               WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
+                   HIFN_PUCNFG_TCALLPHASES |
+                   HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32);
+
+               /* turn off the clocks and insure bypass is set */
+               pll = READ_REG_1(sc, HIFN_1_PLL);
+               pll = (pll &~ (HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL))
+                 | HIFN_PLL_BP | HIFN_PLL_MBSET;
+               WRITE_REG_1(sc, HIFN_1_PLL, pll);
+               DELAY(10*1000);         /* 10ms */
+
+               /* change configuration */
+               pll = (pll &~ HIFN_PLL_CONFIG) | sc->sc_pllconfig;
+               WRITE_REG_1(sc, HIFN_1_PLL, pll);
+               DELAY(10*1000);         /* 10ms */
+
+               /* disable bypass */
+               pll &= ~HIFN_PLL_BP;
+               WRITE_REG_1(sc, HIFN_1_PLL, pll);
+               /* enable clocks with new configuration */
+               pll |= HIFN_PLL_PK_CLK_SEL | HIFN_PLL_PE_CLK_SEL;
+               WRITE_REG_1(sc, HIFN_1_PLL, pll);
+       } else {
+               WRITE_REG_0(sc, HIFN_0_PUCNFG, HIFN_PUCNFG_COMPSING |
+                   HIFN_PUCNFG_DRFR_128 | HIFN_PUCNFG_TCALLPHASES |
+                   HIFN_PUCNFG_TCDRVTOTEM | HIFN_PUCNFG_BUS32 |
+                   (sc->sc_drammodel ? HIFN_PUCNFG_DRAM : HIFN_PUCNFG_SRAM));
+       }
+
+       WRITE_REG_0(sc, HIFN_0_PUISR, HIFN_PUISR_DSTOVER);
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE | HIFN_DMACNFG_LAST |
+           ((HIFN_POLL_FREQUENCY << 16 ) & HIFN_DMACNFG_POLLFREQ) |
+           ((HIFN_POLL_SCALAR << 8) & HIFN_DMACNFG_POLLINVAL));
+}
+
+/*
+ * The maximum number of sessions supported by the card
+ * is dependent on the amount of context ram, which
+ * encryption algorithms are enabled, and how compression
+ * is configured.  This should be configured before this
+ * routine is called.
+ */
+static void
+hifn_sessions(struct hifn_softc *sc)
+{
+       u_int32_t pucnfg;
+       int ctxsize;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       pucnfg = READ_REG_0(sc, HIFN_0_PUCNFG);
+
+       if (pucnfg & HIFN_PUCNFG_COMPSING) {
+               if (pucnfg & HIFN_PUCNFG_ENCCNFG)
+                       ctxsize = 128;
+               else
+                       ctxsize = 512;
+               /*
+                * 7955/7956 has internal context memory of 32K
+                */
+               if (sc->sc_flags & HIFN_IS_7956)
+                       sc->sc_maxses = 32768 / ctxsize;
+               else
+                       sc->sc_maxses = 1 +
+                           ((sc->sc_ramsize - 32768) / ctxsize);
+       } else
+               sc->sc_maxses = sc->sc_ramsize / 16384;
+
+       if (sc->sc_maxses > 2048)
+               sc->sc_maxses = 2048;
+}
+
+/*
+ * Determine ram type (sram or dram).  Board should be just out of a reset
+ * state when this is called.
+ */
+static int
+hifn_ramtype(struct hifn_softc *sc)
+{
+       u_int8_t data[8], dataexpect[8];
+       int i;
+
+       for (i = 0; i < sizeof(data); i++)
+               data[i] = dataexpect[i] = 0x55;
+       if (hifn_writeramaddr(sc, 0, data))
+               return (-1);
+       if (hifn_readramaddr(sc, 0, data))
+               return (-1);
+       if (bcmp(data, dataexpect, sizeof(data)) != 0) {
+               sc->sc_drammodel = 1;
+               return (0);
+       }
+
+       for (i = 0; i < sizeof(data); i++)
+               data[i] = dataexpect[i] = 0xaa;
+       if (hifn_writeramaddr(sc, 0, data))
+               return (-1);
+       if (hifn_readramaddr(sc, 0, data))
+               return (-1);
+       if (bcmp(data, dataexpect, sizeof(data)) != 0) {
+               sc->sc_drammodel = 1;
+               return (0);
+       }
+
+       return (0);
+}
+
+#define        HIFN_SRAM_MAX           (32 << 20)
+#define        HIFN_SRAM_STEP_SIZE     16384
+#define        HIFN_SRAM_GRANULARITY   (HIFN_SRAM_MAX / HIFN_SRAM_STEP_SIZE)
+
+static int
+hifn_sramsize(struct hifn_softc *sc)
+{
+       u_int32_t a;
+       u_int8_t data[8];
+       u_int8_t dataexpect[sizeof(data)];
+       int32_t i;
+
+       for (i = 0; i < sizeof(data); i++)
+               data[i] = dataexpect[i] = i ^ 0x5a;
+
+       for (i = HIFN_SRAM_GRANULARITY - 1; i >= 0; i--) {
+               a = i * HIFN_SRAM_STEP_SIZE;
+               bcopy(&i, data, sizeof(i));
+               hifn_writeramaddr(sc, a, data);
+       }
+
+       for (i = 0; i < HIFN_SRAM_GRANULARITY; i++) {
+               a = i * HIFN_SRAM_STEP_SIZE;
+               bcopy(&i, dataexpect, sizeof(i));
+               if (hifn_readramaddr(sc, a, data) < 0)
+                       return (0);
+               if (bcmp(data, dataexpect, sizeof(data)) != 0)
+                       return (0);
+               sc->sc_ramsize = a + HIFN_SRAM_STEP_SIZE;
+       }
+
+       return (0);
+}
+
+/*
+ * XXX For dram boards, one should really try all of the
+ * HIFN_PUCNFG_DSZ_*'s.  This just assumes that PUCNFG
+ * is already set up correctly.
+ */
+static int
+hifn_dramsize(struct hifn_softc *sc)
+{
+       u_int32_t cnfg;
+
+       if (sc->sc_flags & HIFN_IS_7956) {
+               /*
+                * 7955/7956 have a fixed internal ram of only 32K.
+                */
+               sc->sc_ramsize = 32768;
+       } else {
+               cnfg = READ_REG_0(sc, HIFN_0_PUCNFG) &
+                   HIFN_PUCNFG_DRAMMASK;
+               sc->sc_ramsize = 1 << ((cnfg >> 13) + 18);
+       }
+       return (0);
+}
+
+static void
+hifn_alloc_slot(struct hifn_softc *sc, int *cmdp, int *srcp, int *dstp, int *resp)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (dma->cmdi == HIFN_D_CMD_RSIZE) {
+               dma->cmdi = 0;
+               dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       }
+       *cmdp = dma->cmdi++;
+       dma->cmdk = dma->cmdi;
+
+       if (dma->srci == HIFN_D_SRC_RSIZE) {
+               dma->srci = 0;
+               dma->srcr[HIFN_D_SRC_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->srcr[HIFN_D_SRC_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       }
+       *srcp = dma->srci++;
+       dma->srck = dma->srci;
+
+       if (dma->dsti == HIFN_D_DST_RSIZE) {
+               dma->dsti = 0;
+               dma->dstr[HIFN_D_DST_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->dstr[HIFN_D_DST_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_DSTR_SYNC(sc, HIFN_D_DST_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       }
+       *dstp = dma->dsti++;
+       dma->dstk = dma->dsti;
+
+       if (dma->resi == HIFN_D_RES_RSIZE) {
+               dma->resi = 0;
+               dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       }
+       *resp = dma->resi++;
+       dma->resk = dma->resi;
+}
+
+static int
+hifn_writeramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       hifn_base_command_t wc;
+       const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
+       int r, cmdi, resi, srci, dsti;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       wc.masks = htole16(3 << 13);
+       wc.session_num = htole16(addr >> 14);
+       wc.total_source_count = htole16(8);
+       wc.total_dest_count = htole16(addr & 0x3fff);
+
+       hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+           HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
+           HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
+
+       /* build write command */
+       bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
+       *(hifn_base_command_t *)dma->command_bufs[cmdi] = wc;
+       bcopy(data, &dma->test_src, sizeof(dma->test_src));
+
+       dma->srcr[srci].p = htole32(sc->sc_dma_physaddr
+           + offsetof(struct hifn_dma, test_src));
+       dma->dstr[dsti].p = htole32(sc->sc_dma_physaddr
+           + offsetof(struct hifn_dma, test_dst));
+
+       dma->cmdr[cmdi].l = htole32(16 | masks);
+       dma->srcr[srci].l = htole32(8 | masks);
+       dma->dstr[dsti].l = htole32(4 | masks);
+       dma->resr[resi].l = htole32(4 | masks);
+
+       for (r = 10000; r >= 0; r--) {
+               DELAY(10);
+               if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
+                       break;
+       }
+       if (r == 0) {
+               device_printf(sc->sc_dev, "writeramaddr -- "
+                   "result[%d](addr %d) still valid\n", resi, addr);
+               r = -1;
+               return (-1);
+       } else
+               r = 0;
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+           HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
+           HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
+
+       return (r);
+}
+
+static int
+hifn_readramaddr(struct hifn_softc *sc, int addr, u_int8_t *data)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       hifn_base_command_t rc;
+       const u_int32_t masks = HIFN_D_VALID | HIFN_D_LAST | HIFN_D_MASKDONEIRQ;
+       int r, cmdi, srci, dsti, resi;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       rc.masks = htole16(2 << 13);
+       rc.session_num = htole16(addr >> 14);
+       rc.total_source_count = htole16(addr & 0x3fff);
+       rc.total_dest_count = htole16(8);
+
+       hifn_alloc_slot(sc, &cmdi, &srci, &dsti, &resi);
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+           HIFN_DMACSR_C_CTRL_ENA | HIFN_DMACSR_S_CTRL_ENA |
+           HIFN_DMACSR_D_CTRL_ENA | HIFN_DMACSR_R_CTRL_ENA);
+
+       bzero(dma->command_bufs[cmdi], HIFN_MAX_COMMAND);
+       *(hifn_base_command_t *)dma->command_bufs[cmdi] = rc;
+
+       dma->srcr[srci].p = htole32(sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, test_src));
+       dma->test_src = 0;
+       dma->dstr[dsti].p =  htole32(sc->sc_dma_physaddr +
+           offsetof(struct hifn_dma, test_dst));
+       dma->test_dst = 0;
+       dma->cmdr[cmdi].l = htole32(8 | masks);
+       dma->srcr[srci].l = htole32(8 | masks);
+       dma->dstr[dsti].l = htole32(8 | masks);
+       dma->resr[resi].l = htole32(HIFN_MAX_RESULT | masks);
+
+       for (r = 10000; r >= 0; r--) {
+               DELAY(10);
+               if ((dma->resr[resi].l & htole32(HIFN_D_VALID)) == 0)
+                       break;
+       }
+       if (r == 0) {
+               device_printf(sc->sc_dev, "readramaddr -- "
+                   "result[%d](addr %d) still valid\n", resi, addr);
+               r = -1;
+       } else {
+               r = 0;
+               bcopy(&dma->test_dst, data, sizeof(dma->test_dst));
+       }
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR,
+           HIFN_DMACSR_C_CTRL_DIS | HIFN_DMACSR_S_CTRL_DIS |
+           HIFN_DMACSR_D_CTRL_DIS | HIFN_DMACSR_R_CTRL_DIS);
+
+       return (r);
+}
+
+/*
+ * Initialize the descriptor rings.
+ */
+static void 
+hifn_init_dma(struct hifn_softc *sc)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       hifn_set_retry(sc);
+
+       /* initialize static pointer values */
+       for (i = 0; i < HIFN_D_CMD_RSIZE; i++)
+               dma->cmdr[i].p = htole32(sc->sc_dma_physaddr +
+                   offsetof(struct hifn_dma, command_bufs[i][0]));
+       for (i = 0; i < HIFN_D_RES_RSIZE; i++)
+               dma->resr[i].p = htole32(sc->sc_dma_physaddr +
+                   offsetof(struct hifn_dma, result_bufs[i][0]));
+
+       dma->cmdr[HIFN_D_CMD_RSIZE].p =
+           htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, cmdr[0]));
+       dma->srcr[HIFN_D_SRC_RSIZE].p =
+           htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, srcr[0]));
+       dma->dstr[HIFN_D_DST_RSIZE].p =
+           htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, dstr[0]));
+       dma->resr[HIFN_D_RES_RSIZE].p =
+           htole32(sc->sc_dma_physaddr + offsetof(struct hifn_dma, resr[0]));
+
+       dma->cmdu = dma->srcu = dma->dstu = dma->resu = 0;
+       dma->cmdi = dma->srci = dma->dsti = dma->resi = 0;
+       dma->cmdk = dma->srck = dma->dstk = dma->resk = 0;
+}
+
+/*
+ * Writes out the raw command buffer space.  Returns the
+ * command buffer size.
+ */
+static u_int
+hifn_write_command(struct hifn_command *cmd, u_int8_t *buf)
+{
+       struct hifn_softc *sc = NULL;
+       u_int8_t *buf_pos;
+       hifn_base_command_t *base_cmd;
+       hifn_mac_command_t *mac_cmd;
+       hifn_crypt_command_t *cry_cmd;
+       int using_mac, using_crypt, len, ivlen;
+       u_int32_t dlen, slen;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       buf_pos = buf;
+       using_mac = cmd->base_masks & HIFN_BASE_CMD_MAC;
+       using_crypt = cmd->base_masks & HIFN_BASE_CMD_CRYPT;
+
+       base_cmd = (hifn_base_command_t *)buf_pos;
+       base_cmd->masks = htole16(cmd->base_masks);
+       slen = cmd->src_mapsize;
+       if (cmd->sloplen)
+               dlen = cmd->dst_mapsize - cmd->sloplen + sizeof(u_int32_t);
+       else
+               dlen = cmd->dst_mapsize;
+       base_cmd->total_source_count = htole16(slen & HIFN_BASE_CMD_LENMASK_LO);
+       base_cmd->total_dest_count = htole16(dlen & HIFN_BASE_CMD_LENMASK_LO);
+       dlen >>= 16;
+       slen >>= 16;
+       base_cmd->session_num = htole16(
+           ((slen << HIFN_BASE_CMD_SRCLEN_S) & HIFN_BASE_CMD_SRCLEN_M) |
+           ((dlen << HIFN_BASE_CMD_DSTLEN_S) & HIFN_BASE_CMD_DSTLEN_M));
+       buf_pos += sizeof(hifn_base_command_t);
+
+       if (using_mac) {
+               mac_cmd = (hifn_mac_command_t *)buf_pos;
+               dlen = cmd->maccrd->crd_len;
+               mac_cmd->source_count = htole16(dlen & 0xffff);
+               dlen >>= 16;
+               mac_cmd->masks = htole16(cmd->mac_masks |
+                   ((dlen << HIFN_MAC_CMD_SRCLEN_S) & HIFN_MAC_CMD_SRCLEN_M));
+               mac_cmd->header_skip = htole16(cmd->maccrd->crd_skip);
+               mac_cmd->reserved = 0;
+               buf_pos += sizeof(hifn_mac_command_t);
+       }
+
+       if (using_crypt) {
+               cry_cmd = (hifn_crypt_command_t *)buf_pos;
+               dlen = cmd->enccrd->crd_len;
+               cry_cmd->source_count = htole16(dlen & 0xffff);
+               dlen >>= 16;
+               cry_cmd->masks = htole16(cmd->cry_masks |
+                   ((dlen << HIFN_CRYPT_CMD_SRCLEN_S) & HIFN_CRYPT_CMD_SRCLEN_M));
+               cry_cmd->header_skip = htole16(cmd->enccrd->crd_skip);
+               cry_cmd->reserved = 0;
+               buf_pos += sizeof(hifn_crypt_command_t);
+       }
+
+       if (using_mac && cmd->mac_masks & HIFN_MAC_CMD_NEW_KEY) {
+               bcopy(cmd->mac, buf_pos, HIFN_MAC_KEY_LENGTH);
+               buf_pos += HIFN_MAC_KEY_LENGTH;
+       }
+
+       if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_KEY) {
+               switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
+               case HIFN_CRYPT_CMD_ALG_3DES:
+                       bcopy(cmd->ck, buf_pos, HIFN_3DES_KEY_LENGTH);
+                       buf_pos += HIFN_3DES_KEY_LENGTH;
+                       break;
+               case HIFN_CRYPT_CMD_ALG_DES:
+                       bcopy(cmd->ck, buf_pos, HIFN_DES_KEY_LENGTH);
+                       buf_pos += HIFN_DES_KEY_LENGTH;
+                       break;
+               case HIFN_CRYPT_CMD_ALG_RC4:
+                       len = 256;
+                       do {
+                               int clen;
+
+                               clen = MIN(cmd->cklen, len);
+                               bcopy(cmd->ck, buf_pos, clen);
+                               len -= clen;
+                               buf_pos += clen;
+                       } while (len > 0);
+                       bzero(buf_pos, 4);
+                       buf_pos += 4;
+                       break;
+               case HIFN_CRYPT_CMD_ALG_AES:
+                       /*
+                        * AES keys are variable 128, 192 and
+                        * 256 bits (16, 24 and 32 bytes).
+                        */
+                       bcopy(cmd->ck, buf_pos, cmd->cklen);
+                       buf_pos += cmd->cklen;
+                       break;
+               }
+       }
+
+       if (using_crypt && cmd->cry_masks & HIFN_CRYPT_CMD_NEW_IV) {
+               switch (cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) {
+               case HIFN_CRYPT_CMD_ALG_AES:
+                       ivlen = HIFN_AES_IV_LENGTH;
+                       break;
+               default:
+                       ivlen = HIFN_IV_LENGTH;
+                       break;
+               }
+               bcopy(cmd->iv, buf_pos, ivlen);
+               buf_pos += ivlen;
+       }
+
+       if ((cmd->base_masks & (HIFN_BASE_CMD_MAC|HIFN_BASE_CMD_CRYPT)) == 0) {
+               bzero(buf_pos, 8);
+               buf_pos += 8;
+       }
+
+       return (buf_pos - buf);
+}
+
+static int
+hifn_dmamap_aligned(struct hifn_operand *op)
+{
+       struct hifn_softc *sc = NULL;
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       for (i = 0; i < op->nsegs; i++) {
+               if (op->segs[i].ds_addr & 3)
+                       return (0);
+               if ((i != (op->nsegs - 1)) && (op->segs[i].ds_len & 3))
+                       return (0);
+       }
+       return (1);
+}
+
+static __inline int
+hifn_dmamap_dstwrap(struct hifn_softc *sc, int idx)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+
+       if (++idx == HIFN_D_DST_RSIZE) {
+               dma->dstr[idx].l = htole32(HIFN_D_VALID | HIFN_D_JUMP |
+                   HIFN_D_MASKDONEIRQ);
+               HIFN_DSTR_SYNC(sc, idx,
+                   BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+               idx = 0;
+       }
+       return (idx);
+}
+
+static int
+hifn_dmamap_load_dst(struct hifn_softc *sc, struct hifn_command *cmd)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       struct hifn_operand *dst = &cmd->dst;
+       u_int32_t p, l;
+       int idx, used = 0, i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       idx = dma->dsti;
+       for (i = 0; i < dst->nsegs - 1; i++) {
+               dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
+               dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ | dst->segs[i].ds_len);
+               wmb();
+               dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+               HIFN_DSTR_SYNC(sc, idx,
+                   BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+               used++;
+
+               idx = hifn_dmamap_dstwrap(sc, idx);
+       }
+
+       if (cmd->sloplen == 0) {
+               p = dst->segs[i].ds_addr;
+               l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
+                   dst->segs[i].ds_len;
+       } else {
+               p = sc->sc_dma_physaddr +
+                   offsetof(struct hifn_dma, slop[cmd->slopidx]);
+               l = HIFN_D_MASKDONEIRQ | HIFN_D_LAST |
+                   sizeof(u_int32_t);
+
+               if ((dst->segs[i].ds_len - cmd->sloplen) != 0) {
+                       dma->dstr[idx].p = htole32(dst->segs[i].ds_addr);
+                       dma->dstr[idx].l = htole32(HIFN_D_MASKDONEIRQ |
+                           (dst->segs[i].ds_len - cmd->sloplen));
+                       wmb();
+                       dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+                       HIFN_DSTR_SYNC(sc, idx,
+                           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+                       used++;
+
+                       idx = hifn_dmamap_dstwrap(sc, idx);
+               }
+       }
+       dma->dstr[idx].p = htole32(p);
+       dma->dstr[idx].l = htole32(l);
+       wmb();
+       dma->dstr[idx].l |= htole32(HIFN_D_VALID);
+       HIFN_DSTR_SYNC(sc, idx, BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+       used++;
+
+       idx = hifn_dmamap_dstwrap(sc, idx);
+
+       dma->dsti = idx;
+       dma->dstu += used;
+       return (idx);
+}
+
+static __inline int
+hifn_dmamap_srcwrap(struct hifn_softc *sc, int idx)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+
+       if (++idx == HIFN_D_SRC_RSIZE) {
+               dma->srcr[idx].l = htole32(HIFN_D_VALID |
+                   HIFN_D_JUMP | HIFN_D_MASKDONEIRQ);
+               HIFN_SRCR_SYNC(sc, HIFN_D_SRC_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+               idx = 0;
+       }
+       return (idx);
+}
+
+static int
+hifn_dmamap_load_src(struct hifn_softc *sc, struct hifn_command *cmd)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       struct hifn_operand *src = &cmd->src;
+       int idx, i;
+       u_int32_t last = 0;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       idx = dma->srci;
+       for (i = 0; i < src->nsegs; i++) {
+               if (i == src->nsegs - 1)
+                       last = HIFN_D_LAST;
+
+               dma->srcr[idx].p = htole32(src->segs[i].ds_addr);
+               dma->srcr[idx].l = htole32(src->segs[i].ds_len |
+                   HIFN_D_MASKDONEIRQ | last);
+               wmb();
+               dma->srcr[idx].l |= htole32(HIFN_D_VALID);
+               HIFN_SRCR_SYNC(sc, idx,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+
+               idx = hifn_dmamap_srcwrap(sc, idx);
+       }
+       dma->srci = idx;
+       dma->srcu += src->nsegs;
+       return (idx);
+} 
+
+
+static int 
+hifn_crypto(
+       struct hifn_softc *sc,
+       struct hifn_command *cmd,
+       struct cryptop *crp,
+       int hint)
+{
+       struct  hifn_dma *dma = sc->sc_dma;
+       u_int32_t cmdlen, csr;
+       int cmdi, resi, err = 0;
+       unsigned long l_flags;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /*
+        * need 1 cmd, and 1 res
+        *
+        * NB: check this first since it's easy.
+        */
+       HIFN_LOCK(sc);
+       if ((dma->cmdu + 1) > HIFN_D_CMD_RSIZE ||
+           (dma->resu + 1) > HIFN_D_RES_RSIZE) {
+#ifdef HIFN_DEBUG
+               if (hifn_debug) {
+                       device_printf(sc->sc_dev,
+                               "cmd/result exhaustion, cmdu %u resu %u\n",
+                               dma->cmdu, dma->resu);
+               }
+#endif
+               hifnstats.hst_nomem_cr++;
+               sc->sc_needwakeup |= CRYPTO_SYMQ;
+               HIFN_UNLOCK(sc);
+               return (ERESTART);
+       }
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               if (pci_map_skb(sc, &cmd->src, cmd->src_skb)) {
+                       hifnstats.hst_nomem_load++;
+                       err = ENOMEM;
+                       goto err_srcmap1;
+               }
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               if (pci_map_uio(sc, &cmd->src, cmd->src_io)) {
+                       hifnstats.hst_nomem_load++;
+                       err = ENOMEM;
+                       goto err_srcmap1;
+               }
+       } else {
+               if (pci_map_buf(sc, &cmd->src, cmd->src_buf, crp->crp_ilen)) {
+                       hifnstats.hst_nomem_load++;
+                       err = ENOMEM;
+                       goto err_srcmap1;
+               }
+       }
+
+       if (hifn_dmamap_aligned(&cmd->src)) {
+               cmd->sloplen = cmd->src_mapsize & 3;
+               cmd->dst = cmd->src;
+       } else {
+               if (crp->crp_flags & CRYPTO_F_IOV) {
+                       DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                       err = EINVAL;
+                       goto err_srcmap;
+               } else if (crp->crp_flags & CRYPTO_F_SKBUF) {
+#ifdef NOTYET
+                       int totlen, len;
+                       struct mbuf *m, *m0, *mlast;
+
+                       KASSERT(cmd->dst_m == cmd->src_m,
+                               ("hifn_crypto: dst_m initialized improperly"));
+                       hifnstats.hst_unaligned++;
+                       /*
+                        * Source is not aligned on a longword boundary.
+                        * Copy the data to insure alignment.  If we fail
+                        * to allocate mbufs or clusters while doing this
+                        * we return ERESTART so the operation is requeued
+                        * at the crypto later, but only if there are
+                        * ops already posted to the hardware; otherwise we
+                        * have no guarantee that we'll be re-entered.
+                        */
+                       totlen = cmd->src_mapsize;
+                       if (cmd->src_m->m_flags & M_PKTHDR) {
+                               len = MHLEN;
+                               MGETHDR(m0, M_DONTWAIT, MT_DATA);
+                               if (m0 && !m_dup_pkthdr(m0, cmd->src_m, M_DONTWAIT)) {
+                                       m_free(m0);
+                                       m0 = NULL;
+                               }
+                       } else {
+                               len = MLEN;
+                               MGET(m0, M_DONTWAIT, MT_DATA);
+                       }
+                       if (m0 == NULL) {
+                               hifnstats.hst_nomem_mbuf++;
+                               err = dma->cmdu ? ERESTART : ENOMEM;
+                               goto err_srcmap;
+                       }
+                       if (totlen >= MINCLSIZE) {
+                               MCLGET(m0, M_DONTWAIT);
+                               if ((m0->m_flags & M_EXT) == 0) {
+                                       hifnstats.hst_nomem_mcl++;
+                                       err = dma->cmdu ? ERESTART : ENOMEM;
+                                       m_freem(m0);
+                                       goto err_srcmap;
+                               }
+                               len = MCLBYTES;
+                       }
+                       totlen -= len;
+                       m0->m_pkthdr.len = m0->m_len = len;
+                       mlast = m0;
+
+                       while (totlen > 0) {
+                               MGET(m, M_DONTWAIT, MT_DATA);
+                               if (m == NULL) {
+                                       hifnstats.hst_nomem_mbuf++;
+                                       err = dma->cmdu ? ERESTART : ENOMEM;
+                                       m_freem(m0);
+                                       goto err_srcmap;
+                               }
+                               len = MLEN;
+                               if (totlen >= MINCLSIZE) {
+                                       MCLGET(m, M_DONTWAIT);
+                                       if ((m->m_flags & M_EXT) == 0) {
+                                               hifnstats.hst_nomem_mcl++;
+                                               err = dma->cmdu ? ERESTART : ENOMEM;
+                                               mlast->m_next = m;
+                                               m_freem(m0);
+                                               goto err_srcmap;
+                                       }
+                                       len = MCLBYTES;
+                               }
+
+                               m->m_len = len;
+                               m0->m_pkthdr.len += len;
+                               totlen -= len;
+
+                               mlast->m_next = m;
+                               mlast = m;
+                       }
+                       cmd->dst_m = m0;
+#else
+                       device_printf(sc->sc_dev,
+                                       "%s,%d: CRYPTO_F_SKBUF unaligned not implemented\n",
+                                       __FILE__, __LINE__);
+                       err = EINVAL;
+                       goto err_srcmap;
+#endif
+               } else {
+                       device_printf(sc->sc_dev,
+                                       "%s,%d: unaligned contig buffers not implemented\n",
+                                       __FILE__, __LINE__);
+                       err = EINVAL;
+                       goto err_srcmap;
+               }
+       }
+
+       if (cmd->dst_map == NULL) {
+               if (crp->crp_flags & CRYPTO_F_SKBUF) {
+                       if (pci_map_skb(sc, &cmd->dst, cmd->dst_skb)) {
+                               hifnstats.hst_nomem_map++;
+                               err = ENOMEM;
+                               goto err_dstmap1;
+                       }
+               } else if (crp->crp_flags & CRYPTO_F_IOV) {
+                       if (pci_map_uio(sc, &cmd->dst, cmd->dst_io)) {
+                               hifnstats.hst_nomem_load++;
+                               err = ENOMEM;
+                               goto err_dstmap1;
+                       }
+               } else {
+                       if (pci_map_buf(sc, &cmd->dst, cmd->dst_buf, crp->crp_ilen)) {
+                               hifnstats.hst_nomem_load++;
+                               err = ENOMEM;
+                               goto err_dstmap1;
+                       }
+               }
+       }
+
+#ifdef HIFN_DEBUG
+       if (hifn_debug) {
+               device_printf(sc->sc_dev,
+                   "Entering cmd: stat %8x ien %8x u %d/%d/%d/%d n %d/%d\n",
+                   READ_REG_1(sc, HIFN_1_DMA_CSR),
+                   READ_REG_1(sc, HIFN_1_DMA_IER),
+                   dma->cmdu, dma->srcu, dma->dstu, dma->resu,
+                   cmd->src_nsegs, cmd->dst_nsegs);
+       }
+#endif
+
+#if 0
+       if (cmd->src_map == cmd->dst_map) {
+               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                   BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD);
+       } else {
+               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                   BUS_DMASYNC_PREWRITE);
+               bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+                   BUS_DMASYNC_PREREAD);
+       }
+#endif
+
+       /*
+        * need N src, and N dst
+        */
+       if ((dma->srcu + cmd->src_nsegs) > HIFN_D_SRC_RSIZE ||
+           (dma->dstu + cmd->dst_nsegs + 1) > HIFN_D_DST_RSIZE) {
+#ifdef HIFN_DEBUG
+               if (hifn_debug) {
+                       device_printf(sc->sc_dev,
+                               "src/dst exhaustion, srcu %u+%u dstu %u+%u\n",
+                               dma->srcu, cmd->src_nsegs,
+                               dma->dstu, cmd->dst_nsegs);
+               }
+#endif
+               hifnstats.hst_nomem_sd++;
+               err = ERESTART;
+               goto err_dstmap;
+       }
+
+       if (dma->cmdi == HIFN_D_CMD_RSIZE) {
+               dma->cmdi = 0;
+               dma->cmdr[HIFN_D_CMD_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->cmdr[HIFN_D_CMD_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_CMDR_SYNC(sc, HIFN_D_CMD_RSIZE,
+                   BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       }
+       cmdi = dma->cmdi++;
+       cmdlen = hifn_write_command(cmd, dma->command_bufs[cmdi]);
+       HIFN_CMD_SYNC(sc, cmdi, BUS_DMASYNC_PREWRITE);
+
+       /* .p for command/result already set */
+       dma->cmdr[cmdi].l = htole32(cmdlen | HIFN_D_LAST |
+           HIFN_D_MASKDONEIRQ);
+       wmb();
+       dma->cmdr[cmdi].l |= htole32(HIFN_D_VALID);
+       HIFN_CMDR_SYNC(sc, cmdi,
+           BUS_DMASYNC_PREWRITE | BUS_DMASYNC_PREREAD);
+       dma->cmdu++;
+
+       /*
+        * We don't worry about missing an interrupt (which a "command wait"
+        * interrupt salvages us from), unless there is more than one command
+        * in the queue.
+        */
+       if (dma->cmdu > 1) {
+               sc->sc_dmaier |= HIFN_DMAIER_C_WAIT;
+               WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+       }
+
+       hifnstats.hst_ipackets++;
+       hifnstats.hst_ibytes += cmd->src_mapsize;
+
+       hifn_dmamap_load_src(sc, cmd);
+
+       /*
+        * Unlike other descriptors, we don't mask done interrupt from
+        * result descriptor.
+        */
+#ifdef HIFN_DEBUG
+       if (hifn_debug)
+               device_printf(sc->sc_dev, "load res\n");
+#endif
+       if (dma->resi == HIFN_D_RES_RSIZE) {
+               dma->resi = 0;
+               dma->resr[HIFN_D_RES_RSIZE].l = htole32(HIFN_D_JUMP|HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->resr[HIFN_D_RES_RSIZE].l |= htole32(HIFN_D_VALID);
+               HIFN_RESR_SYNC(sc, HIFN_D_RES_RSIZE,
+                   BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+       }
+       resi = dma->resi++;
+       KASSERT(dma->hifn_commands[resi] == NULL,
+               ("hifn_crypto: command slot %u busy", resi));
+       dma->hifn_commands[resi] = cmd;
+       HIFN_RES_SYNC(sc, resi, BUS_DMASYNC_PREREAD);
+       if ((hint & CRYPTO_HINT_MORE) && sc->sc_curbatch < hifn_maxbatch) {
+               dma->resr[resi].l = htole32(HIFN_MAX_RESULT |
+                   HIFN_D_LAST | HIFN_D_MASKDONEIRQ);
+               wmb();
+               dma->resr[resi].l |= htole32(HIFN_D_VALID);
+               sc->sc_curbatch++;
+               if (sc->sc_curbatch > hifnstats.hst_maxbatch)
+                       hifnstats.hst_maxbatch = sc->sc_curbatch;
+               hifnstats.hst_totbatch++;
+       } else {
+               dma->resr[resi].l = htole32(HIFN_MAX_RESULT | HIFN_D_LAST);
+               wmb();
+               dma->resr[resi].l |= htole32(HIFN_D_VALID);
+               sc->sc_curbatch = 0;
+       }
+       HIFN_RESR_SYNC(sc, resi,
+           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+       dma->resu++;
+
+       if (cmd->sloplen)
+               cmd->slopidx = resi;
+
+       hifn_dmamap_load_dst(sc, cmd);
+
+       csr = 0;
+       if (sc->sc_c_busy == 0) {
+               csr |= HIFN_DMACSR_C_CTRL_ENA;
+               sc->sc_c_busy = 1;
+       }
+       if (sc->sc_s_busy == 0) {
+               csr |= HIFN_DMACSR_S_CTRL_ENA;
+               sc->sc_s_busy = 1;
+       }
+       if (sc->sc_r_busy == 0) {
+               csr |= HIFN_DMACSR_R_CTRL_ENA;
+               sc->sc_r_busy = 1;
+       }
+       if (sc->sc_d_busy == 0) {
+               csr |= HIFN_DMACSR_D_CTRL_ENA;
+               sc->sc_d_busy = 1;
+       }
+       if (csr)
+               WRITE_REG_1(sc, HIFN_1_DMA_CSR, csr);
+
+#ifdef HIFN_DEBUG
+       if (hifn_debug) {
+               device_printf(sc->sc_dev, "command: stat %8x ier %8x\n",
+                   READ_REG_1(sc, HIFN_1_DMA_CSR),
+                   READ_REG_1(sc, HIFN_1_DMA_IER));
+       }
+#endif
+
+       sc->sc_active = 5;
+       HIFN_UNLOCK(sc);
+       KASSERT(err == 0, ("hifn_crypto: success with error %u", err));
+       return (err);           /* success */
+
+err_dstmap:
+       if (cmd->src_map != cmd->dst_map)
+               pci_unmap_buf(sc, &cmd->dst);
+err_dstmap1:
+err_srcmap:
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               if (cmd->src_skb != cmd->dst_skb)
+#ifdef NOTYET
+                       m_freem(cmd->dst_m);
+#else
+                       device_printf(sc->sc_dev,
+                                       "%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+                                       __FILE__, __LINE__);
+#endif
+       }
+       pci_unmap_buf(sc, &cmd->src);
+err_srcmap1:
+       HIFN_UNLOCK(sc);
+       return (err);
+}
+
+static void
+hifn_tick(unsigned long arg)
+{
+       struct hifn_softc *sc;
+       unsigned long l_flags;
+
+       if (arg >= HIFN_MAX_CHIPS)
+               return;
+       sc = hifn_chip_idx[arg];
+       if (!sc)
+               return;
+
+       HIFN_LOCK(sc);
+       if (sc->sc_active == 0) {
+               struct hifn_dma *dma = sc->sc_dma;
+               u_int32_t r = 0;
+
+               if (dma->cmdu == 0 && sc->sc_c_busy) {
+                       sc->sc_c_busy = 0;
+                       r |= HIFN_DMACSR_C_CTRL_DIS;
+               }
+               if (dma->srcu == 0 && sc->sc_s_busy) {
+                       sc->sc_s_busy = 0;
+                       r |= HIFN_DMACSR_S_CTRL_DIS;
+               }
+               if (dma->dstu == 0 && sc->sc_d_busy) {
+                       sc->sc_d_busy = 0;
+                       r |= HIFN_DMACSR_D_CTRL_DIS;
+               }
+               if (dma->resu == 0 && sc->sc_r_busy) {
+                       sc->sc_r_busy = 0;
+                       r |= HIFN_DMACSR_R_CTRL_DIS;
+               }
+               if (r)
+                       WRITE_REG_1(sc, HIFN_1_DMA_CSR, r);
+       } else
+               sc->sc_active--;
+       HIFN_UNLOCK(sc);
+       mod_timer(&sc->sc_tickto, jiffies + HZ);
+}
+
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+hifn_intr(int irq, void *arg)
+#else
+hifn_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+       struct hifn_softc *sc = arg;
+       struct hifn_dma *dma;
+       u_int32_t dmacsr, restart;
+       int i, u;
+       unsigned long l_flags;
+
+       dmacsr = READ_REG_1(sc, HIFN_1_DMA_CSR);
+
+       /* Nothing in the DMA unit interrupted */
+       if ((dmacsr & sc->sc_dmaier) == 0)
+               return IRQ_NONE;
+
+       HIFN_LOCK(sc);
+
+       dma = sc->sc_dma;
+
+#ifdef HIFN_DEBUG
+       if (hifn_debug) {
+               device_printf(sc->sc_dev,
+                   "irq: stat %08x ien %08x damier %08x i %d/%d/%d/%d k %d/%d/%d/%d u %d/%d/%d/%d\n",
+                   dmacsr, READ_REG_1(sc, HIFN_1_DMA_IER), sc->sc_dmaier,
+                   dma->cmdi, dma->srci, dma->dsti, dma->resi,
+                   dma->cmdk, dma->srck, dma->dstk, dma->resk,
+                   dma->cmdu, dma->srcu, dma->dstu, dma->resu);
+       }
+#endif
+
+       WRITE_REG_1(sc, HIFN_1_DMA_CSR, dmacsr & sc->sc_dmaier);
+
+       if ((sc->sc_flags & HIFN_HAS_PUBLIC) &&
+           (dmacsr & HIFN_DMACSR_PUBDONE))
+               WRITE_REG_1(sc, HIFN_1_PUB_STATUS,
+                   READ_REG_1(sc, HIFN_1_PUB_STATUS) | HIFN_PUBSTS_DONE);
+
+       restart = dmacsr & (HIFN_DMACSR_D_OVER | HIFN_DMACSR_R_OVER);
+       if (restart)
+               device_printf(sc->sc_dev, "overrun %x\n", dmacsr);
+
+       if (sc->sc_flags & HIFN_IS_7811) {
+               if (dmacsr & HIFN_DMACSR_ILLR)
+                       device_printf(sc->sc_dev, "illegal read\n");
+               if (dmacsr & HIFN_DMACSR_ILLW)
+                       device_printf(sc->sc_dev, "illegal write\n");
+       }
+
+       restart = dmacsr & (HIFN_DMACSR_C_ABORT | HIFN_DMACSR_S_ABORT |
+           HIFN_DMACSR_D_ABORT | HIFN_DMACSR_R_ABORT);
+       if (restart) {
+               device_printf(sc->sc_dev, "abort, resetting.\n");
+               hifnstats.hst_abort++;
+               hifn_abort(sc);
+               HIFN_UNLOCK(sc);
+               return IRQ_HANDLED;
+       }
+
+       if ((dmacsr & HIFN_DMACSR_C_WAIT) && (dma->cmdu == 0)) {
+               /*
+                * If no slots to process and we receive a "waiting on
+                * command" interrupt, we disable the "waiting on command"
+                * (by clearing it).
+                */
+               sc->sc_dmaier &= ~HIFN_DMAIER_C_WAIT;
+               WRITE_REG_1(sc, HIFN_1_DMA_IER, sc->sc_dmaier);
+       }
+
+       /* clear the rings */
+       i = dma->resk; u = dma->resu;
+       while (u != 0) {
+               HIFN_RESR_SYNC(sc, i,
+                   BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+               if (dma->resr[i].l & htole32(HIFN_D_VALID)) {
+                       HIFN_RESR_SYNC(sc, i,
+                           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+                       break;
+               }
+
+               if (i != HIFN_D_RES_RSIZE) {
+                       struct hifn_command *cmd;
+                       u_int8_t *macbuf = NULL;
+
+                       HIFN_RES_SYNC(sc, i, BUS_DMASYNC_POSTREAD);
+                       cmd = dma->hifn_commands[i];
+                       KASSERT(cmd != NULL,
+                               ("hifn_intr: null command slot %u", i));
+                       dma->hifn_commands[i] = NULL;
+
+                       if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
+                               macbuf = dma->result_bufs[i];
+                               macbuf += 12;
+                       }
+
+                       hifn_callback(sc, cmd, macbuf);
+                       hifnstats.hst_opackets++;
+                       u--;
+               }
+
+               if (++i == (HIFN_D_RES_RSIZE + 1))
+                       i = 0;
+       }
+       dma->resk = i; dma->resu = u;
+
+       i = dma->srck; u = dma->srcu;
+       while (u != 0) {
+               if (i == HIFN_D_SRC_RSIZE)
+                       i = 0;
+               HIFN_SRCR_SYNC(sc, i,
+                   BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+               if (dma->srcr[i].l & htole32(HIFN_D_VALID)) {
+                       HIFN_SRCR_SYNC(sc, i,
+                           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+                       break;
+               }
+               i++, u--;
+       }
+       dma->srck = i; dma->srcu = u;
+
+       i = dma->cmdk; u = dma->cmdu;
+       while (u != 0) {
+               HIFN_CMDR_SYNC(sc, i,
+                   BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+               if (dma->cmdr[i].l & htole32(HIFN_D_VALID)) {
+                       HIFN_CMDR_SYNC(sc, i,
+                           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+                       break;
+               }
+               if (i != HIFN_D_CMD_RSIZE) {
+                       u--;
+                       HIFN_CMD_SYNC(sc, i, BUS_DMASYNC_POSTWRITE);
+               }
+               if (++i == (HIFN_D_CMD_RSIZE + 1))
+                       i = 0;
+       }
+       dma->cmdk = i; dma->cmdu = u;
+
+       HIFN_UNLOCK(sc);
+
+       if (sc->sc_needwakeup) {                /* XXX check high watermark */
+               int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
+#ifdef HIFN_DEBUG
+               if (hifn_debug)
+                       device_printf(sc->sc_dev,
+                               "wakeup crypto (%x) u %d/%d/%d/%d\n",
+                               sc->sc_needwakeup,
+                               dma->cmdu, dma->srcu, dma->dstu, dma->resu);
+#endif
+               sc->sc_needwakeup &= ~wakeup;
+               crypto_unblock(sc->sc_cid, wakeup);
+       }
+
+       return IRQ_HANDLED;
+}
+
+/*
+ * Allocate a new 'session' and return an encoded session id.  'sidp'
+ * contains our registration id, and should contain an encoded session
+ * id on successful allocation.
+ */
+static int
+hifn_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+       struct hifn_softc *sc = device_get_softc(dev);
+       struct cryptoini *c;
+       int mac = 0, cry = 0, sesn;
+       struct hifn_session *ses = NULL;
+       unsigned long l_flags;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       KASSERT(sc != NULL, ("hifn_newsession: null softc"));
+       if (sidp == NULL || cri == NULL || sc == NULL) {
+               DPRINTF("%s,%d: %s - EINVAL\n", __FILE__, __LINE__, __FUNCTION__);
+               return (EINVAL);
+       }
+
+       HIFN_LOCK(sc);
+       if (sc->sc_sessions == NULL) {
+               ses = sc->sc_sessions = (struct hifn_session *)kmalloc(sizeof(*ses),
+                               SLAB_ATOMIC);
+               if (ses == NULL) {
+                       HIFN_UNLOCK(sc);
+                       return (ENOMEM);
+               }
+               sesn = 0;
+               sc->sc_nsessions = 1;
+       } else {
+               for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+                       if (!sc->sc_sessions[sesn].hs_used) {
+                               ses = &sc->sc_sessions[sesn];
+                               break;
+                       }
+               }
+
+               if (ses == NULL) {
+                       sesn = sc->sc_nsessions;
+                       ses = (struct hifn_session *)kmalloc((sesn + 1) * sizeof(*ses),
+                                       SLAB_ATOMIC);
+                       if (ses == NULL) {
+                               HIFN_UNLOCK(sc);
+                               return (ENOMEM);
+                       }
+                       bcopy(sc->sc_sessions, ses, sesn * sizeof(*ses));
+                       bzero(sc->sc_sessions, sesn * sizeof(*ses));
+                       kfree(sc->sc_sessions);
+                       sc->sc_sessions = ses;
+                       ses = &sc->sc_sessions[sesn];
+                       sc->sc_nsessions++;
+               }
+       }
+       HIFN_UNLOCK(sc);
+
+       bzero(ses, sizeof(*ses));
+       ses->hs_used = 1;
+
+       for (c = cri; c != NULL; c = c->cri_next) {
+               switch (c->cri_alg) {
+               case CRYPTO_MD5:
+               case CRYPTO_SHA1:
+               case CRYPTO_MD5_HMAC:
+               case CRYPTO_SHA1_HMAC:
+                       if (mac) {
+                               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                               return (EINVAL);
+                       }
+                       mac = 1;
+                       ses->hs_mlen = c->cri_mlen;
+                       if (ses->hs_mlen == 0) {
+                               switch (c->cri_alg) {
+                               case CRYPTO_MD5:
+                               case CRYPTO_MD5_HMAC:
+                                       ses->hs_mlen = 16;
+                                       break;
+                               case CRYPTO_SHA1:
+                               case CRYPTO_SHA1_HMAC:
+                                       ses->hs_mlen = 20;
+                                       break;
+                               }
+                       }
+                       break;
+               case CRYPTO_DES_CBC:
+               case CRYPTO_3DES_CBC:
+               case CRYPTO_AES_CBC:
+                       /* XXX this may read fewer, does it matter? */
+                       read_random(ses->hs_iv,
+                               c->cri_alg == CRYPTO_AES_CBC ?
+                                       HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+                       /*FALLTHROUGH*/
+               case CRYPTO_ARC4:
+                       if (cry) {
+                               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                               return (EINVAL);
+                       }
+                       cry = 1;
+                       break;
+               default:
+                       DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                       return (EINVAL);
+               }
+       }
+       if (mac == 0 && cry == 0) {
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               return (EINVAL);
+       }
+
+       *sidp = HIFN_SID(device_get_unit(sc->sc_dev), sesn);
+
+       return (0);
+}
+
+/*
+ * Deallocate a session.
+ * XXX this routine should run a zero'd mac/encrypt key into context ram.
+ * XXX to blow away any keys already stored there.
+ */
+static int
+hifn_freesession(device_t dev, u_int64_t tid)
+{
+       struct hifn_softc *sc = device_get_softc(dev);
+       int session, error;
+       u_int32_t sid = CRYPTO_SESID2LID(tid);
+       unsigned long l_flags;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       KASSERT(sc != NULL, ("hifn_freesession: null softc"));
+       if (sc == NULL) {
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               return (EINVAL);
+       }
+
+       HIFN_LOCK(sc);
+       session = HIFN_SESSION(sid);
+       if (session < sc->sc_nsessions) {
+               bzero(&sc->sc_sessions[session], sizeof(struct hifn_session));
+               error = 0;
+       } else {
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               error = EINVAL;
+       }
+       HIFN_UNLOCK(sc);
+
+       return (error);
+}
+
+static int
+hifn_process(device_t dev, struct cryptop *crp, int hint)
+{
+       struct hifn_softc *sc = device_get_softc(dev);
+       struct hifn_command *cmd = NULL;
+       int session, err, ivlen;
+       struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (crp == NULL || crp->crp_callback == NULL) {
+               hifnstats.hst_invalid++;
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               return (EINVAL);
+       }
+       session = HIFN_SESSION(crp->crp_sid);
+
+       if (sc == NULL || session >= sc->sc_nsessions) {
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               err = EINVAL;
+               goto errout;
+       }
+
+       cmd = kmalloc(sizeof(struct hifn_command), SLAB_ATOMIC);
+       if (cmd == NULL) {
+               hifnstats.hst_nomem++;
+               err = ENOMEM;
+               goto errout;
+       }
+       memset(cmd, 0, sizeof(*cmd));
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               cmd->src_skb = (struct sk_buff *)crp->crp_buf;
+               cmd->dst_skb = (struct sk_buff *)crp->crp_buf;
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               cmd->src_io = (struct uio *)crp->crp_buf;
+               cmd->dst_io = (struct uio *)crp->crp_buf;
+       } else {
+               cmd->src_buf = crp->crp_buf;
+               cmd->dst_buf = crp->crp_buf;
+       }
+
+       crd1 = crp->crp_desc;
+       if (crd1 == NULL) {
+               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+               err = EINVAL;
+               goto errout;
+       }
+       crd2 = crd1->crd_next;
+
+       if (crd2 == NULL) {
+               if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1 ||
+                   crd1->crd_alg == CRYPTO_MD5) {
+                       maccrd = crd1;
+                       enccrd = NULL;
+               } else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+                   crd1->crd_alg == CRYPTO_3DES_CBC ||
+                   crd1->crd_alg == CRYPTO_AES_CBC ||
+                   crd1->crd_alg == CRYPTO_ARC4) {
+                       if ((crd1->crd_flags & CRD_F_ENCRYPT) == 0)
+                               cmd->base_masks |= HIFN_BASE_CMD_DECODE;
+                       maccrd = NULL;
+                       enccrd = crd1;
+               } else {
+                       DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                       err = EINVAL;
+                       goto errout;
+               }
+       } else {
+               if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd1->crd_alg == CRYPTO_MD5 ||
+                     crd1->crd_alg == CRYPTO_SHA1) &&
+                   (crd2->crd_alg == CRYPTO_DES_CBC ||
+                    crd2->crd_alg == CRYPTO_3DES_CBC ||
+                    crd2->crd_alg == CRYPTO_AES_CBC ||
+                    crd2->crd_alg == CRYPTO_ARC4) &&
+                   ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+                       cmd->base_masks = HIFN_BASE_CMD_DECODE;
+                       maccrd = crd1;
+                       enccrd = crd2;
+               } else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+                    crd1->crd_alg == CRYPTO_ARC4 ||
+                    crd1->crd_alg == CRYPTO_3DES_CBC ||
+                    crd1->crd_alg == CRYPTO_AES_CBC) &&
+                   (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd2->crd_alg == CRYPTO_MD5 ||
+                     crd2->crd_alg == CRYPTO_SHA1) &&
+                   (crd1->crd_flags & CRD_F_ENCRYPT)) {
+                       enccrd = crd1;
+                       maccrd = crd2;
+               } else {
+                       /*
+                        * We cannot order the 7751 as requested
+                        */
+                       DPRINTF("%s,%d: %s %d,%d,%d - EINVAL\n",__FILE__,__LINE__,__FUNCTION__, crd1->crd_alg, crd2->crd_alg, crd1->crd_flags & CRD_F_ENCRYPT);
+                       err = EINVAL;
+                       goto errout;
+               }
+       }
+
+       if (enccrd) {
+               cmd->enccrd = enccrd;
+               cmd->base_masks |= HIFN_BASE_CMD_CRYPT;
+               switch (enccrd->crd_alg) {
+               case CRYPTO_ARC4:
+                       cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_RC4;
+                       break;
+               case CRYPTO_DES_CBC:
+                       cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_DES |
+                           HIFN_CRYPT_CMD_MODE_CBC |
+                           HIFN_CRYPT_CMD_NEW_IV;
+                       break;
+               case CRYPTO_3DES_CBC:
+                       cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_3DES |
+                           HIFN_CRYPT_CMD_MODE_CBC |
+                           HIFN_CRYPT_CMD_NEW_IV;
+                       break;
+               case CRYPTO_AES_CBC:
+                       cmd->cry_masks |= HIFN_CRYPT_CMD_ALG_AES |
+                           HIFN_CRYPT_CMD_MODE_CBC |
+                           HIFN_CRYPT_CMD_NEW_IV;
+                       break;
+               default:
+                       DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                       err = EINVAL;
+                       goto errout;
+               }
+               if (enccrd->crd_alg != CRYPTO_ARC4) {
+                       ivlen = ((enccrd->crd_alg == CRYPTO_AES_CBC) ?
+                               HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+                       if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+                               if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                                       bcopy(enccrd->crd_iv, cmd->iv, ivlen);
+                               else
+                                       bcopy(sc->sc_sessions[session].hs_iv,
+                                           cmd->iv, ivlen);
+
+                               if ((enccrd->crd_flags & CRD_F_IV_PRESENT)
+                                   == 0) {
+                                       crypto_copyback(crp->crp_flags,
+                                           crp->crp_buf, enccrd->crd_inject,
+                                           ivlen, cmd->iv);
+                               }
+                       } else {
+                               if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                                       bcopy(enccrd->crd_iv, cmd->iv, ivlen);
+                               else {
+                                       crypto_copydata(crp->crp_flags,
+                                           crp->crp_buf, enccrd->crd_inject,
+                                           ivlen, cmd->iv);
+                               }
+                       }
+               }
+
+               if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
+                       cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
+               cmd->ck = enccrd->crd_key;
+               cmd->cklen = enccrd->crd_klen >> 3;
+               cmd->cry_masks |= HIFN_CRYPT_CMD_NEW_KEY;
+
+               /* 
+                * Need to specify the size for the AES key in the masks.
+                */
+               if ((cmd->cry_masks & HIFN_CRYPT_CMD_ALG_MASK) ==
+                   HIFN_CRYPT_CMD_ALG_AES) {
+                       switch (cmd->cklen) {
+                       case 16:
+                               cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_128;
+                               break;
+                       case 24:
+                               cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_192;
+                               break;
+                       case 32:
+                               cmd->cry_masks |= HIFN_CRYPT_CMD_KSZ_256;
+                               break;
+                       default:
+                               DPRINTF("%s,%d: %s - EINVAL\n",__FILE__,__LINE__,__FUNCTION__);
+                               err = EINVAL;
+                               goto errout;
+                       }
+               }
+       }
+
+       if (maccrd) {
+               cmd->maccrd = maccrd;
+               cmd->base_masks |= HIFN_BASE_CMD_MAC;
+
+               switch (maccrd->crd_alg) {
+               case CRYPTO_MD5:
+                       cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
+                           HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
+                           HIFN_MAC_CMD_POS_IPSEC;
+                       break;
+               case CRYPTO_MD5_HMAC:
+                       cmd->mac_masks |= HIFN_MAC_CMD_ALG_MD5 |
+                           HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
+                           HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
+                       break;
+               case CRYPTO_SHA1:
+                       cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
+                           HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HASH |
+                           HIFN_MAC_CMD_POS_IPSEC;
+                       break;
+               case CRYPTO_SHA1_HMAC:
+                       cmd->mac_masks |= HIFN_MAC_CMD_ALG_SHA1 |
+                           HIFN_MAC_CMD_RESULT | HIFN_MAC_CMD_MODE_HMAC |
+                           HIFN_MAC_CMD_POS_IPSEC | HIFN_MAC_CMD_TRUNC;
+                       break;
+               }
+
+               if (maccrd->crd_alg == CRYPTO_SHA1_HMAC ||
+                    maccrd->crd_alg == CRYPTO_MD5_HMAC) {
+                       cmd->mac_masks |= HIFN_MAC_CMD_NEW_KEY;
+                       bcopy(maccrd->crd_key, cmd->mac, maccrd->crd_klen >> 3);
+                       bzero(cmd->mac + (maccrd->crd_klen >> 3),
+                           HIFN_MAC_KEY_LENGTH - (maccrd->crd_klen >> 3));
+               }
+       }
+
+       cmd->crp = crp;
+       cmd->session_num = session;
+       cmd->softc = sc;
+
+       err = hifn_crypto(sc, cmd, crp, hint);
+       if (!err) {
+               return 0;
+       } else if (err == ERESTART) {
+               /*
+                * There weren't enough resources to dispatch the request
+                * to the part.  Notify the caller so they'll requeue this
+                * request and resubmit it again soon.
+                */
+#ifdef HIFN_DEBUG
+               if (hifn_debug)
+                       device_printf(sc->sc_dev, "requeue request\n");
+#endif
+               kfree(cmd);
+               sc->sc_needwakeup |= CRYPTO_SYMQ;
+               return (err);
+       }
+
+errout:
+       if (cmd != NULL)
+               kfree(cmd);
+       if (err == EINVAL)
+               hifnstats.hst_invalid++;
+       else
+               hifnstats.hst_nomem++;
+       crp->crp_etype = err;
+       crypto_done(crp);
+       return (err);
+}
+
+static void
+hifn_abort(struct hifn_softc *sc)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       struct hifn_command *cmd;
+       struct cryptop *crp;
+       int i, u;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       i = dma->resk; u = dma->resu;
+       while (u != 0) {
+               cmd = dma->hifn_commands[i];
+               KASSERT(cmd != NULL, ("hifn_abort: null command slot %u", i));
+               dma->hifn_commands[i] = NULL;
+               crp = cmd->crp;
+
+               if ((dma->resr[i].l & htole32(HIFN_D_VALID)) == 0) {
+                       /* Salvage what we can. */
+                       u_int8_t *macbuf;
+
+                       if (cmd->base_masks & HIFN_BASE_CMD_MAC) {
+                               macbuf = dma->result_bufs[i];
+                               macbuf += 12;
+                       } else
+                               macbuf = NULL;
+                       hifnstats.hst_opackets++;
+                       hifn_callback(sc, cmd, macbuf);
+               } else {
+#if 0
+                       if (cmd->src_map == cmd->dst_map) {
+                               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                                   BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
+                       } else {
+                               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                                   BUS_DMASYNC_POSTWRITE);
+                               bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+                                   BUS_DMASYNC_POSTREAD);
+                       }
+#endif
+
+                       if (cmd->src_skb != cmd->dst_skb) {
+#ifdef NOTYET
+                               m_freem(cmd->src_m);
+                               crp->crp_buf = (caddr_t)cmd->dst_m;
+#else
+                               device_printf(sc->sc_dev,
+                                               "%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+                                               __FILE__, __LINE__);
+#endif
+                       }
+
+                       /* non-shared buffers cannot be restarted */
+                       if (cmd->src_map != cmd->dst_map) {
+                               /*
+                                * XXX should be EAGAIN, delayed until
+                                * after the reset.
+                                */
+                               crp->crp_etype = ENOMEM;
+                               pci_unmap_buf(sc, &cmd->dst);
+                       } else
+                               crp->crp_etype = ENOMEM;
+
+                       pci_unmap_buf(sc, &cmd->src);
+
+                       kfree(cmd);
+                       if (crp->crp_etype != EAGAIN)
+                               crypto_done(crp);
+               }
+
+               if (++i == HIFN_D_RES_RSIZE)
+                       i = 0;
+               u--;
+       }
+       dma->resk = i; dma->resu = u;
+
+       hifn_reset_board(sc, 1);
+       hifn_init_dma(sc);
+       hifn_init_pci_registers(sc);
+}
+
+static void
+hifn_callback(struct hifn_softc *sc, struct hifn_command *cmd, u_int8_t *macbuf)
+{
+       struct hifn_dma *dma = sc->sc_dma;
+       struct cryptop *crp = cmd->crp;
+       struct cryptodesc *crd;
+       int i, u, ivlen;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+#if 0
+       if (cmd->src_map == cmd->dst_map) {
+               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                   BUS_DMASYNC_POSTWRITE | BUS_DMASYNC_POSTREAD);
+       } else {
+               bus_dmamap_sync(sc->sc_dmat, cmd->src_map,
+                   BUS_DMASYNC_POSTWRITE);
+               bus_dmamap_sync(sc->sc_dmat, cmd->dst_map,
+                   BUS_DMASYNC_POSTREAD);
+       }
+#endif
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               if (cmd->src_skb != cmd->dst_skb) {
+#ifdef NOTYET
+                       crp->crp_buf = (caddr_t)cmd->dst_m;
+                       totlen = cmd->src_mapsize;
+                       for (m = cmd->dst_m; m != NULL; m = m->m_next) {
+                               if (totlen < m->m_len) {
+                                       m->m_len = totlen;
+                                       totlen = 0;
+                               } else
+                                       totlen -= m->m_len;
+                       }
+                       cmd->dst_m->m_pkthdr.len = cmd->src_m->m_pkthdr.len;
+                       m_freem(cmd->src_m);
+#else
+                       device_printf(sc->sc_dev,
+                                       "%s,%d: CRYPTO_F_SKBUF src != dst not implemented\n",
+                                       __FILE__, __LINE__);
+#endif
+               }
+       }
+
+       if (cmd->sloplen != 0) {
+               crypto_copyback(crp->crp_flags, crp->crp_buf,
+                   cmd->src_mapsize - cmd->sloplen, cmd->sloplen,
+                   (caddr_t)&dma->slop[cmd->slopidx]);
+       }
+
+       i = dma->dstk; u = dma->dstu;
+       while (u != 0) {
+               if (i == HIFN_D_DST_RSIZE)
+                       i = 0;
+#if 0
+               bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
+                   BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
+#endif
+               if (dma->dstr[i].l & htole32(HIFN_D_VALID)) {
+#if 0
+                       bus_dmamap_sync(sc->sc_dmat, sc->sc_dmamap,
+                           BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE);
+#endif
+                       break;
+               }
+               i++, u--;
+       }
+       dma->dstk = i; dma->dstu = u;
+
+       hifnstats.hst_obytes += cmd->dst_mapsize;
+
+       if ((cmd->base_masks & (HIFN_BASE_CMD_CRYPT | HIFN_BASE_CMD_DECODE)) ==
+           HIFN_BASE_CMD_CRYPT) {
+               for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+                       if (crd->crd_alg != CRYPTO_DES_CBC &&
+                           crd->crd_alg != CRYPTO_3DES_CBC &&
+                           crd->crd_alg != CRYPTO_AES_CBC)
+                               continue;
+                       ivlen = ((crd->crd_alg == CRYPTO_AES_CBC) ?
+                               HIFN_AES_IV_LENGTH : HIFN_IV_LENGTH);
+                       crypto_copydata(crp->crp_flags, crp->crp_buf,
+                           crd->crd_skip + crd->crd_len - ivlen, ivlen,
+                           cmd->softc->sc_sessions[cmd->session_num].hs_iv);
+                       break;
+               }
+       }
+
+       if (macbuf != NULL) {
+               for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+                        int len;
+
+                       if (crd->crd_alg != CRYPTO_MD5 &&
+                           crd->crd_alg != CRYPTO_SHA1 &&
+                           crd->crd_alg != CRYPTO_MD5_HMAC &&
+                           crd->crd_alg != CRYPTO_SHA1_HMAC) {
+                               continue;
+                       }
+                       len = cmd->softc->sc_sessions[cmd->session_num].hs_mlen;
+                       crypto_copyback(crp->crp_flags, crp->crp_buf,
+                           crd->crd_inject, len, macbuf);
+                       break;
+               }
+       }
+
+       if (cmd->src_map != cmd->dst_map)
+               pci_unmap_buf(sc, &cmd->dst);
+       pci_unmap_buf(sc, &cmd->src);
+       kfree(cmd);
+       crypto_done(crp);
+}
+
+/*
+ * 7811 PB3 rev/2 parts lock-up on burst writes to Group 0
+ * and Group 1 registers; avoid conditions that could create
+ * burst writes by doing a read in between the writes.
+ *
+ * NB: The read we interpose is always to the same register;
+ *     we do this because reading from an arbitrary (e.g. last)
+ *     register may not always work.
+ */
+static void
+hifn_write_reg_0(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
+{
+       if (sc->sc_flags & HIFN_IS_7811) {
+               if (sc->sc_bar0_lastreg == reg - 4)
+                       readl(sc->sc_bar0 + HIFN_0_PUCNFG);
+               sc->sc_bar0_lastreg = reg;
+       }
+       writel(val, sc->sc_bar0 + reg);
+}
+
+static void
+hifn_write_reg_1(struct hifn_softc *sc, bus_size_t reg, u_int32_t val)
+{
+       if (sc->sc_flags & HIFN_IS_7811) {
+               if (sc->sc_bar1_lastreg == reg - 4)
+                       readl(sc->sc_bar1 + HIFN_1_REVID);
+               sc->sc_bar1_lastreg = reg;
+       }
+       writel(val, sc->sc_bar1 + reg);
+}
+
+
+static struct pci_device_id hifn_pci_tbl[] = {
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7951,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7955,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7956,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_NETSEC, PCI_PRODUCT_NETSEC_7751,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_INVERTEX, PCI_PRODUCT_INVERTEX_AEON,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7811,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       /*
+        * Other vendors share this PCI ID as well, such as
+        * http://www.powercrypt.com, and obviously they also
+        * use the same key.
+        */
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7751,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { 0, 0, 0, 0, 0, 0, }
+};
+MODULE_DEVICE_TABLE(pci, hifn_pci_tbl);
+
+static struct pci_driver hifn_driver = {
+       .name         = "hifn",
+       .id_table     = hifn_pci_tbl,
+       .probe        = hifn_probe,
+       .remove       = hifn_remove,
+       /* add PM stuff here one day */
+};
+
+static int __init hifn_init (void)
+{
+       struct hifn_softc *sc = NULL;
+       int rc;
+
+       DPRINTF("%s(%p)\n", __FUNCTION__, hifn_init);
+
+       rc = pci_register_driver(&hifn_driver);
+       pci_register_driver_compat(&hifn_driver, rc);
+
+       return rc;
+}
+
+static void __exit hifn_exit (void)
+{
+       pci_unregister_driver(&hifn_driver);
+}
+
+module_init(hifn_init);
+module_exit(hifn_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF driver for hifn PCI crypto devices");
--- /dev/null
+++ b/crypto/ocf/hifn/hifnHIPP.c
@@ -0,0 +1,420 @@
+/*-
+ * Driver for Hifn HIPP-I/II chipset
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn Inc.
+ *
+ */
+
+/*
+ * Driver for various Hifn encryption processors.
+ */
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <linux/uio.h>
+#include <linux/sysfs.h>
+#include <linux/miscdevice.h>
+#include <asm/io.h>
+
+#include <cryptodev.h>
+
+#include "hifnHIPPreg.h"
+#include "hifnHIPPvar.h"
+
+#if 1
+#define        DPRINTF(a...)   if (hipp_debug) { \
+                                                       printk("%s: ", sc ? \
+                                                               device_get_nameunit(sc->sc_dev) : "hifn"); \
+                                                       printk(a); \
+                                               } else
+#else
+#define        DPRINTF(a...)
+#endif
+
+typedef int bus_size_t;
+
+static inline int
+pci_get_revid(struct pci_dev *dev)
+{
+       u8 rid = 0;
+       pci_read_config_byte(dev, PCI_REVISION_ID, &rid);
+       return rid;
+}
+
+#define debug hipp_debug
+int hipp_debug = 0;
+module_param(hipp_debug, int, 0644);
+MODULE_PARM_DESC(hipp_debug, "Enable debug");
+
+int hipp_maxbatch = 1;
+module_param(hipp_maxbatch, int, 0644);
+MODULE_PARM_DESC(hipp_maxbatch, "max ops to batch w/o interrupt");
+
+static int  hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent);
+static void hipp_remove(struct pci_dev *dev);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hipp_intr(int irq, void *arg);
+#else
+static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs);
+#endif
+
+static int hipp_num_chips = 0;
+static struct hipp_softc *hipp_chip_idx[HIPP_MAX_CHIPS];
+
+static int hipp_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int hipp_freesession(device_t, u_int64_t);
+static int hipp_process(device_t, struct cryptop *, int);
+
+static device_method_t hipp_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, hipp_newsession),
+       DEVMETHOD(cryptodev_freesession,hipp_freesession),
+       DEVMETHOD(cryptodev_process,    hipp_process),
+};
+
+static __inline u_int32_t
+READ_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg)
+{
+       u_int32_t v = readl(sc->sc_bar[barno] + reg);
+       //sc->sc_bar0_lastreg = (bus_size_t) -1;
+       return (v);
+}
+static __inline void
+WRITE_REG(struct hipp_softc *sc, unsigned int barno, bus_size_t reg, u_int32_t val)
+{
+       writel(val, sc->sc_bar[barno] + reg);
+}
+
+#define READ_REG_0(sc, reg)         READ_REG(sc, 0, reg)
+#define WRITE_REG_0(sc, reg, val)   WRITE_REG(sc,0, reg, val)
+#define READ_REG_1(sc, reg)         READ_REG(sc, 1, reg)
+#define WRITE_REG_1(sc, reg, val)   WRITE_REG(sc,1, reg, val)
+
+static int
+hipp_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+       return EINVAL;
+}
+
+static int
+hipp_freesession(device_t dev, u_int64_t tid)
+{
+       return EINVAL;
+}
+
+static int
+hipp_process(device_t dev, struct cryptop *crp, int hint)
+{
+       return EINVAL;
+}
+
+static const char*
+hipp_partname(struct hipp_softc *sc, char buf[128], size_t blen)
+{
+       char *n = NULL;
+
+       switch (pci_get_vendor(sc->sc_pcidev)) {
+       case PCI_VENDOR_HIFN:
+               switch (pci_get_device(sc->sc_pcidev)) {
+               case PCI_PRODUCT_HIFN_7855:     n = "Hifn 7855";
+               case PCI_PRODUCT_HIFN_8155:     n = "Hifn 8155";
+               case PCI_PRODUCT_HIFN_6500:     n = "Hifn 6500";
+               }
+       }
+
+       if(n==NULL) {
+               snprintf(buf, blen, "VID=%02x,PID=%02x",
+                        pci_get_vendor(sc->sc_pcidev),
+                        pci_get_device(sc->sc_pcidev));
+       } else {
+               buf[0]='\0';
+               strncat(buf, n, blen);
+       }
+       return buf;
+}
+
+struct hipp_fs_entry {
+       struct attribute attr;
+       /* other stuff */
+};
+
+
+static ssize_t
+cryptoid_show(struct device *dev,
+             struct device_attribute *attr,
+             char *buf)                                                
+{                                                              
+       struct hipp_softc *sc;                                  
+
+       sc = pci_get_drvdata(to_pci_dev (dev));
+       return sprintf (buf, "%d\n", sc->sc_cid);
+}
+
+struct device_attribute hipp_dev_cryptoid = __ATTR_RO(cryptoid);
+
+/*
+ * Attach an interface that successfully probed.
+ */
+static int
+hipp_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+       struct hipp_softc *sc = NULL;
+       int i;
+       //char rbase;
+       //u_int16_t ena;
+       int rev;
+       //int rseg;
+       int rc;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (pci_enable_device(dev) < 0)
+               return(-ENODEV);
+
+       if (pci_set_mwi(dev))
+               return(-ENODEV);
+
+       if (!dev->irq) {
+               printk("hifn: found device with no IRQ assigned. check BIOS settings!");
+               pci_disable_device(dev);
+               return(-ENODEV);
+       }
+
+       sc = (struct hipp_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+       if (!sc)
+               return(-ENOMEM);
+       memset(sc, 0, sizeof(*sc));
+
+       softc_device_init(sc, "hifn-hipp", hipp_num_chips, hipp_methods);
+
+       sc->sc_pcidev = dev;
+       sc->sc_irq = -1;
+       sc->sc_cid = -1;
+       sc->sc_num = hipp_num_chips++;
+
+       if (sc->sc_num < HIPP_MAX_CHIPS)
+               hipp_chip_idx[sc->sc_num] = sc;
+
+       pci_set_drvdata(sc->sc_pcidev, sc);
+
+       spin_lock_init(&sc->sc_mtx);
+
+       /*
+        * Setup PCI resources.
+        * The READ_REG_0, WRITE_REG_0, READ_REG_1,
+        * and WRITE_REG_1 macros throughout the driver are used
+        * to permit better debugging.
+        */
+       for(i=0; i<4; i++) {
+               unsigned long mem_start, mem_len;
+               mem_start = pci_resource_start(sc->sc_pcidev, i);
+               mem_len   = pci_resource_len(sc->sc_pcidev, i);
+               sc->sc_barphy[i] = (caddr_t)mem_start;
+               sc->sc_bar[i] = (ocf_iomem_t) ioremap(mem_start, mem_len);
+               if (!sc->sc_bar[i]) {
+                       device_printf(sc->sc_dev, "cannot map bar%d register space\n", i);
+                       goto fail;
+               }
+       }
+
+       //hipp_reset_board(sc, 0);
+       pci_set_master(sc->sc_pcidev);
+
+       /*
+        * Arrange the interrupt line.
+        */
+       rc = request_irq(dev->irq, hipp_intr, IRQF_SHARED, "hifn", sc);
+       if (rc) {
+               device_printf(sc->sc_dev, "could not map interrupt: %d\n", rc);
+               goto fail;
+       }
+       sc->sc_irq = dev->irq;
+
+       rev = READ_REG_1(sc, HIPP_1_REVID) & 0xffff;
+
+       {
+               char b[32];
+               device_printf(sc->sc_dev, "%s, rev %u",
+                             hipp_partname(sc, b, sizeof(b)), rev);
+       }
+
+#if 0
+       if (sc->sc_flags & HIFN_IS_7956)
+               printf(", pll=0x%x<%s clk, %ux mult>",
+                       sc->sc_pllconfig,
+                       sc->sc_pllconfig & HIFN_PLL_REF_SEL ? "ext" : "pci",
+                       2 + 2*((sc->sc_pllconfig & HIFN_PLL_ND) >> 11));
+#endif
+       printf("\n");
+
+       sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+       if (sc->sc_cid < 0) {
+               device_printf(sc->sc_dev, "could not get crypto driver id\n");
+               goto fail;
+       }
+
+#if 0 /* cannot work with a non-GPL module */
+       /* make a sysfs entry to let the world know what entry we got */
+       sysfs_create_file(&sc->sc_pcidev->dev.kobj, &hipp_dev_cryptoid.attr);
+#endif
+
+#if 0
+       init_timer(&sc->sc_tickto);
+       sc->sc_tickto.function = hifn_tick;
+       sc->sc_tickto.data = (unsigned long) sc->sc_num;
+       mod_timer(&sc->sc_tickto, jiffies + HZ);
+#endif
+
+#if 0 /* no code here yet ?? */
+       crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+#endif
+
+       return (0);
+
+fail:
+       if (sc->sc_cid >= 0)
+               crypto_unregister_all(sc->sc_cid);
+       if (sc->sc_irq != -1)
+               free_irq(sc->sc_irq, sc);
+       
+#if 0
+       if (sc->sc_dma) {
+               /* Turn off DMA polling */
+               WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+                           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+               
+               pci_free_consistent(sc->sc_pcidev,
+                                   sizeof(*sc->sc_dma),
+                                   sc->sc_dma, sc->sc_dma_physaddr);
+       }
+#endif
+       kfree(sc);
+       return (-ENXIO);
+}
+
+/*
+ * Detach an interface that successfully probed.
+ */
+static void
+hipp_remove(struct pci_dev *dev)
+{
+       struct hipp_softc *sc = pci_get_drvdata(dev);
+       unsigned long l_flags;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /* disable interrupts */
+       HIPP_LOCK(sc);
+
+#if 0
+       WRITE_REG_1(sc, HIFN_1_DMA_IER, 0);
+       HIFN_UNLOCK(sc);
+
+       /*XXX other resources */
+       del_timer_sync(&sc->sc_tickto);
+
+       /* Turn off DMA polling */
+       WRITE_REG_1(sc, HIFN_1_DMA_CNFG, HIFN_DMACNFG_MSTRESET |
+           HIFN_DMACNFG_DMARESET | HIFN_DMACNFG_MODE);
+#endif
+
+       crypto_unregister_all(sc->sc_cid);
+
+       free_irq(sc->sc_irq, sc);
+
+#if 0
+       pci_free_consistent(sc->sc_pcidev, sizeof(*sc->sc_dma),
+                sc->sc_dma, sc->sc_dma_physaddr);
+#endif
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+static irqreturn_t hipp_intr(int irq, void *arg)
+#else
+static irqreturn_t hipp_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+       struct hipp_softc *sc = arg;
+
+       sc = sc; /* shut up compiler */
+
+       return IRQ_HANDLED;
+}
+
+static struct pci_device_id hipp_pci_tbl[] = {
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_7855,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { PCI_VENDOR_HIFN, PCI_PRODUCT_HIFN_8155,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+};
+MODULE_DEVICE_TABLE(pci, hipp_pci_tbl);
+
+static struct pci_driver hipp_driver = {
+       .name         = "hipp",
+       .id_table     = hipp_pci_tbl,
+       .probe        = hipp_probe,
+       .remove       = hipp_remove,
+       /* add PM stuff here one day */
+};
+
+static int __init hipp_init (void)
+{
+       struct hipp_softc *sc = NULL;
+       int rc;
+
+       DPRINTF("%s(%p)\n", __FUNCTION__, hipp_init);
+
+       rc = pci_register_driver(&hipp_driver);
+       pci_register_driver_compat(&hipp_driver, rc);
+
+       return rc;
+}
+
+static void __exit hipp_exit (void)
+{
+       pci_unregister_driver(&hipp_driver);
+}
+
+module_init(hipp_init);
+module_exit(hipp_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("Michael Richardson <mcr@xelerance.com>");
+MODULE_DESCRIPTION("OCF driver for hifn HIPP-I/II PCI crypto devices");
--- /dev/null
+++ b/crypto/ocf/hifn/hifnHIPPreg.h
@@ -0,0 +1,46 @@
+/*-
+ * Hifn HIPP-I/HIPP-II (7855/8155) driver.
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn inc.
+ *
+ */
+
+#ifndef __HIFNHIPP_H__
+#define        __HIFNHIPP_H__
+
+/*
+ * PCI vendor and device identifiers
+ */
+#define        PCI_VENDOR_HIFN         0x13a3          /* Hifn */
+#define        PCI_PRODUCT_HIFN_6500   0x0006          /* 6500 */
+#define        PCI_PRODUCT_HIFN_7855   0x001f          /* 7855 */
+#define        PCI_PRODUCT_HIFN_8155   0x999           /* XXX 8155 */
+
+#define HIPP_1_REVID            0x01 /* BOGUS */
+
+#endif /* __HIPP_H__ */
--- /dev/null
+++ b/crypto/ocf/hifn/hifnHIPPvar.h
@@ -0,0 +1,93 @@
+/*
+ * Hifn HIPP-I/HIPP-II (7855/8155) driver.
+ * Copyright (c) 2006 Michael Richardson <mcr@xelerance.com> * 
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored by Hifn inc.
+ *
+ */
+
+#ifndef __HIFNHIPPVAR_H__
+#define __HIFNHIPPVAR_H__
+
+#define HIPP_MAX_CHIPS 8
+
+/*
+ * Holds data specific to a single Hifn HIPP-I board.
+ */
+struct hipp_softc {
+       softc_device_decl                sc_dev;
+
+       struct pci_dev          *sc_pcidev;     /* device backpointer */
+       ocf_iomem_t             sc_bar[5];
+       caddr_t                 sc_barphy[5];   /* physical address */
+       int                     sc_num;         /* for multiple devs */
+       spinlock_t              sc_mtx;         /* per-instance lock */
+       int32_t                 sc_cid;
+       int                     sc_irq;
+
+#if 0
+
+       u_int32_t               sc_dmaier;
+       u_int32_t               sc_drammodel;   /* 1=dram, 0=sram */
+       u_int32_t               sc_pllconfig;   /* 7954/7955/7956 PLL config */
+
+       struct hifn_dma         *sc_dma;
+       dma_addr_t              sc_dma_physaddr;/* physical address of sc_dma */
+
+       int                     sc_dmansegs;
+       int                     sc_maxses;
+       int                     sc_nsessions;
+       struct hifn_session     *sc_sessions;
+       int                     sc_ramsize;
+       int                     sc_flags;
+#define        HIFN_HAS_RNG            0x1     /* includes random number generator */
+#define        HIFN_HAS_PUBLIC         0x2     /* includes public key support */
+#define        HIFN_HAS_AES            0x4     /* includes AES support */
+#define        HIFN_IS_7811            0x8     /* Hifn 7811 part */
+#define        HIFN_IS_7956            0x10    /* Hifn 7956/7955 don't have SDRAM */
+
+       struct timer_list       sc_tickto;      /* for managing DMA */
+
+       int                     sc_rngfirst;
+       int                     sc_rnghz;       /* RNG polling frequency */
+
+       int                     sc_c_busy;      /* command ring busy */
+       int                     sc_s_busy;      /* source data ring busy */
+       int                     sc_d_busy;      /* destination data ring busy */
+       int                     sc_r_busy;      /* result ring busy */
+       int                     sc_active;      /* for initial countdown */
+       int                     sc_needwakeup;  /* ops q'd wating on resources */
+       int                     sc_curbatch;    /* # ops submitted w/o int */
+       int                     sc_suspended;
+       struct miscdevice       sc_miscdev;
+#endif
+};
+
+#define        HIPP_LOCK(_sc)          spin_lock_irqsave(&(_sc)->sc_mtx, l_flags)
+#define        HIPP_UNLOCK(_sc)        spin_unlock_irqrestore(&(_sc)->sc_mtx, l_flags)
+
+#endif /* __HIFNHIPPVAR_H__ */
--- /dev/null
+++ b/crypto/ocf/safe/md5.c
@@ -0,0 +1,308 @@
+/*     $KAME: md5.c,v 1.5 2000/11/08 06:13:08 itojun Exp $     */
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/crypto/md5.c,v 1.9 2004/01/27 19:49:19 des Exp $");
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/time.h>
+#include <sys/systm.h>
+#include <crypto/md5.h>
+#endif
+
+#define SHIFT(X, s) (((X) << (s)) | ((X) >> (32 - (s))))
+
+#define F(X, Y, Z) (((X) & (Y)) | ((~X) & (Z)))
+#define G(X, Y, Z) (((X) & (Z)) | ((Y) & (~Z)))
+#define H(X, Y, Z) ((X) ^ (Y) ^ (Z))
+#define I(X, Y, Z) ((Y) ^ ((X) | (~Z)))
+
+#define ROUND1(a, b, c, d, k, s, i) { \
+       (a) = (a) + F((b), (c), (d)) + X[(k)] + T[(i)]; \
+       (a) = SHIFT((a), (s)); \
+       (a) = (b) + (a); \
+}
+
+#define ROUND2(a, b, c, d, k, s, i) { \
+       (a) = (a) + G((b), (c), (d)) + X[(k)] + T[(i)]; \
+       (a) = SHIFT((a), (s)); \
+       (a) = (b) + (a); \
+}
+
+#define ROUND3(a, b, c, d, k, s, i) { \
+       (a) = (a) + H((b), (c), (d)) + X[(k)] + T[(i)]; \
+       (a) = SHIFT((a), (s)); \
+       (a) = (b) + (a); \
+}
+
+#define ROUND4(a, b, c, d, k, s, i) { \
+       (a) = (a) + I((b), (c), (d)) + X[(k)] + T[(i)]; \
+       (a) = SHIFT((a), (s)); \
+       (a) = (b) + (a); \
+}
+
+#define Sa      7
+#define Sb     12
+#define Sc     17
+#define Sd     22
+
+#define Se      5
+#define Sf      9
+#define Sg     14
+#define Sh     20
+
+#define Si      4
+#define Sj     11
+#define Sk     16
+#define Sl     23
+
+#define Sm      6
+#define Sn     10
+#define So     15
+#define Sp     21
+
+#define MD5_A0 0x67452301
+#define MD5_B0 0xefcdab89
+#define MD5_C0 0x98badcfe
+#define MD5_D0 0x10325476
+
+/* Integer part of 4294967296 times abs(sin(i)), where i is in radians. */
+static const u_int32_t T[65] = {
+       0,
+       0xd76aa478,     0xe8c7b756,     0x242070db,     0xc1bdceee,
+       0xf57c0faf,     0x4787c62a,     0xa8304613,     0xfd469501,
+       0x698098d8,     0x8b44f7af,     0xffff5bb1,     0x895cd7be,
+       0x6b901122,     0xfd987193,     0xa679438e,     0x49b40821,
+
+       0xf61e2562,     0xc040b340,     0x265e5a51,     0xe9b6c7aa,
+       0xd62f105d,     0x2441453,      0xd8a1e681,     0xe7d3fbc8,
+       0x21e1cde6,     0xc33707d6,     0xf4d50d87,     0x455a14ed,
+       0xa9e3e905,     0xfcefa3f8,     0x676f02d9,     0x8d2a4c8a,
+
+       0xfffa3942,     0x8771f681,     0x6d9d6122,     0xfde5380c,
+       0xa4beea44,     0x4bdecfa9,     0xf6bb4b60,     0xbebfbc70,
+       0x289b7ec6,     0xeaa127fa,     0xd4ef3085,     0x4881d05,
+       0xd9d4d039,     0xe6db99e5,     0x1fa27cf8,     0xc4ac5665,
+
+       0xf4292244,     0x432aff97,     0xab9423a7,     0xfc93a039,
+       0x655b59c3,     0x8f0ccc92,     0xffeff47d,     0x85845dd1,
+       0x6fa87e4f,     0xfe2ce6e0,     0xa3014314,     0x4e0811a1,
+       0xf7537e82,     0xbd3af235,     0x2ad7d2bb,     0xeb86d391,
+};
+
+static const u_int8_t md5_paddat[MD5_BUFLEN] = {
+       0x80,   0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,
+       0,      0,      0,      0,      0,      0,      0,      0,      
+};
+
+static void md5_calc(u_int8_t *, md5_ctxt *);
+
+void md5_init(ctxt)
+       md5_ctxt *ctxt;
+{
+       ctxt->md5_n = 0;
+       ctxt->md5_i = 0;
+       ctxt->md5_sta = MD5_A0;
+       ctxt->md5_stb = MD5_B0;
+       ctxt->md5_stc = MD5_C0;
+       ctxt->md5_std = MD5_D0;
+       bzero(ctxt->md5_buf, sizeof(ctxt->md5_buf));
+}
+
+void md5_loop(ctxt, input, len)
+       md5_ctxt *ctxt;
+       u_int8_t *input;
+       u_int len; /* number of bytes */
+{
+       u_int gap, i;
+
+       ctxt->md5_n += len * 8; /* byte to bit */
+       gap = MD5_BUFLEN - ctxt->md5_i;
+
+       if (len >= gap) {
+               bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
+                       gap);
+               md5_calc(ctxt->md5_buf, ctxt);
+
+               for (i = gap; i + MD5_BUFLEN <= len; i += MD5_BUFLEN) {
+                       md5_calc((u_int8_t *)(input + i), ctxt);
+               }
+               
+               ctxt->md5_i = len - i;
+               bcopy((void *)(input + i), (void *)ctxt->md5_buf, ctxt->md5_i);
+       } else {
+               bcopy((void *)input, (void *)(ctxt->md5_buf + ctxt->md5_i),
+                       len);
+               ctxt->md5_i += len;
+       }
+}
+
+void md5_pad(ctxt)
+       md5_ctxt *ctxt;
+{
+       u_int gap;
+
+       /* Don't count up padding. Keep md5_n. */       
+       gap = MD5_BUFLEN - ctxt->md5_i;
+       if (gap > 8) {
+               bcopy(md5_paddat,
+                     (void *)(ctxt->md5_buf + ctxt->md5_i),
+                     gap - sizeof(ctxt->md5_n));
+       } else {
+               /* including gap == 8 */
+               bcopy(md5_paddat, (void *)(ctxt->md5_buf + ctxt->md5_i),
+                       gap);
+               md5_calc(ctxt->md5_buf, ctxt);
+               bcopy((md5_paddat + gap),
+                     (void *)ctxt->md5_buf,
+                     MD5_BUFLEN - sizeof(ctxt->md5_n));
+       }
+
+       /* 8 byte word */       
+#if BYTE_ORDER == LITTLE_ENDIAN
+       bcopy(&ctxt->md5_n8[0], &ctxt->md5_buf[56], 8);
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+       ctxt->md5_buf[56] = ctxt->md5_n8[7];
+       ctxt->md5_buf[57] = ctxt->md5_n8[6];
+       ctxt->md5_buf[58] = ctxt->md5_n8[5];
+       ctxt->md5_buf[59] = ctxt->md5_n8[4];
+       ctxt->md5_buf[60] = ctxt->md5_n8[3];
+       ctxt->md5_buf[61] = ctxt->md5_n8[2];
+       ctxt->md5_buf[62] = ctxt->md5_n8[1];
+       ctxt->md5_buf[63] = ctxt->md5_n8[0];
+#endif
+
+       md5_calc(ctxt->md5_buf, ctxt);
+}
+
+void md5_result(digest, ctxt)
+       u_int8_t *digest;
+       md5_ctxt *ctxt;
+{
+       /* 4 byte words */
+#if BYTE_ORDER == LITTLE_ENDIAN
+       bcopy(&ctxt->md5_st8[0], digest, 16);
+#endif
+#if BYTE_ORDER == BIG_ENDIAN
+       digest[ 0] = ctxt->md5_st8[ 3]; digest[ 1] = ctxt->md5_st8[ 2];
+       digest[ 2] = ctxt->md5_st8[ 1]; digest[ 3] = ctxt->md5_st8[ 0];
+       digest[ 4] = ctxt->md5_st8[ 7]; digest[ 5] = ctxt->md5_st8[ 6];
+       digest[ 6] = ctxt->md5_st8[ 5]; digest[ 7] = ctxt->md5_st8[ 4];
+       digest[ 8] = ctxt->md5_st8[11]; digest[ 9] = ctxt->md5_st8[10];
+       digest[10] = ctxt->md5_st8[ 9]; digest[11] = ctxt->md5_st8[ 8];
+       digest[12] = ctxt->md5_st8[15]; digest[13] = ctxt->md5_st8[14];
+       digest[14] = ctxt->md5_st8[13]; digest[15] = ctxt->md5_st8[12];
+#endif
+}
+
+static void md5_calc(b64, ctxt)
+       u_int8_t *b64;
+       md5_ctxt *ctxt;
+{
+       u_int32_t A = ctxt->md5_sta;
+       u_int32_t B = ctxt->md5_stb;
+       u_int32_t C = ctxt->md5_stc;
+       u_int32_t D = ctxt->md5_std;
+#if BYTE_ORDER == LITTLE_ENDIAN
+       u_int32_t *X = (u_int32_t *)b64;
+#endif 
+#if BYTE_ORDER == BIG_ENDIAN
+       /* 4 byte words */
+       /* what a brute force but fast! */
+       u_int32_t X[16];
+       u_int8_t *y = (u_int8_t *)X;
+       y[ 0] = b64[ 3]; y[ 1] = b64[ 2]; y[ 2] = b64[ 1]; y[ 3] = b64[ 0];
+       y[ 4] = b64[ 7]; y[ 5] = b64[ 6]; y[ 6] = b64[ 5]; y[ 7] = b64[ 4];
+       y[ 8] = b64[11]; y[ 9] = b64[10]; y[10] = b64[ 9]; y[11] = b64[ 8];
+       y[12] = b64[15]; y[13] = b64[14]; y[14] = b64[13]; y[15] = b64[12];
+       y[16] = b64[19]; y[17] = b64[18]; y[18] = b64[17]; y[19] = b64[16];
+       y[20] = b64[23]; y[21] = b64[22]; y[22] = b64[21]; y[23] = b64[20];
+       y[24] = b64[27]; y[25] = b64[26]; y[26] = b64[25]; y[27] = b64[24];
+       y[28] = b64[31]; y[29] = b64[30]; y[30] = b64[29]; y[31] = b64[28];
+       y[32] = b64[35]; y[33] = b64[34]; y[34] = b64[33]; y[35] = b64[32];
+       y[36] = b64[39]; y[37] = b64[38]; y[38] = b64[37]; y[39] = b64[36];
+       y[40] = b64[43]; y[41] = b64[42]; y[42] = b64[41]; y[43] = b64[40];
+       y[44] = b64[47]; y[45] = b64[46]; y[46] = b64[45]; y[47] = b64[44];
+       y[48] = b64[51]; y[49] = b64[50]; y[50] = b64[49]; y[51] = b64[48];
+       y[52] = b64[55]; y[53] = b64[54]; y[54] = b64[53]; y[55] = b64[52];
+       y[56] = b64[59]; y[57] = b64[58]; y[58] = b64[57]; y[59] = b64[56];
+       y[60] = b64[63]; y[61] = b64[62]; y[62] = b64[61]; y[63] = b64[60];
+#endif
+
+       ROUND1(A, B, C, D,  0, Sa,  1); ROUND1(D, A, B, C,  1, Sb,  2);
+       ROUND1(C, D, A, B,  2, Sc,  3); ROUND1(B, C, D, A,  3, Sd,  4);
+       ROUND1(A, B, C, D,  4, Sa,  5); ROUND1(D, A, B, C,  5, Sb,  6);
+       ROUND1(C, D, A, B,  6, Sc,  7); ROUND1(B, C, D, A,  7, Sd,  8);
+       ROUND1(A, B, C, D,  8, Sa,  9); ROUND1(D, A, B, C,  9, Sb, 10);
+       ROUND1(C, D, A, B, 10, Sc, 11); ROUND1(B, C, D, A, 11, Sd, 12);
+       ROUND1(A, B, C, D, 12, Sa, 13); ROUND1(D, A, B, C, 13, Sb, 14);
+       ROUND1(C, D, A, B, 14, Sc, 15); ROUND1(B, C, D, A, 15, Sd, 16);
+       
+       ROUND2(A, B, C, D,  1, Se, 17); ROUND2(D, A, B, C,  6, Sf, 18);
+       ROUND2(C, D, A, B, 11, Sg, 19); ROUND2(B, C, D, A,  0, Sh, 20);
+       ROUND2(A, B, C, D,  5, Se, 21); ROUND2(D, A, B, C, 10, Sf, 22);
+       ROUND2(C, D, A, B, 15, Sg, 23); ROUND2(B, C, D, A,  4, Sh, 24);
+       ROUND2(A, B, C, D,  9, Se, 25); ROUND2(D, A, B, C, 14, Sf, 26);
+       ROUND2(C, D, A, B,  3, Sg, 27); ROUND2(B, C, D, A,  8, Sh, 28);
+       ROUND2(A, B, C, D, 13, Se, 29); ROUND2(D, A, B, C,  2, Sf, 30);
+       ROUND2(C, D, A, B,  7, Sg, 31); ROUND2(B, C, D, A, 12, Sh, 32);
+
+       ROUND3(A, B, C, D,  5, Si, 33); ROUND3(D, A, B, C,  8, Sj, 34);
+       ROUND3(C, D, A, B, 11, Sk, 35); ROUND3(B, C, D, A, 14, Sl, 36);
+       ROUND3(A, B, C, D,  1, Si, 37); ROUND3(D, A, B, C,  4, Sj, 38);
+       ROUND3(C, D, A, B,  7, Sk, 39); ROUND3(B, C, D, A, 10, Sl, 40);
+       ROUND3(A, B, C, D, 13, Si, 41); ROUND3(D, A, B, C,  0, Sj, 42);
+       ROUND3(C, D, A, B,  3, Sk, 43); ROUND3(B, C, D, A,  6, Sl, 44);
+       ROUND3(A, B, C, D,  9, Si, 45); ROUND3(D, A, B, C, 12, Sj, 46);
+       ROUND3(C, D, A, B, 15, Sk, 47); ROUND3(B, C, D, A,  2, Sl, 48);
+       
+       ROUND4(A, B, C, D,  0, Sm, 49); ROUND4(D, A, B, C,  7, Sn, 50); 
+       ROUND4(C, D, A, B, 14, So, 51); ROUND4(B, C, D, A,  5, Sp, 52); 
+       ROUND4(A, B, C, D, 12, Sm, 53); ROUND4(D, A, B, C,  3, Sn, 54); 
+       ROUND4(C, D, A, B, 10, So, 55); ROUND4(B, C, D, A,  1, Sp, 56); 
+       ROUND4(A, B, C, D,  8, Sm, 57); ROUND4(D, A, B, C, 15, Sn, 58); 
+       ROUND4(C, D, A, B,  6, So, 59); ROUND4(B, C, D, A, 13, Sp, 60); 
+       ROUND4(A, B, C, D,  4, Sm, 61); ROUND4(D, A, B, C, 11, Sn, 62); 
+       ROUND4(C, D, A, B,  2, So, 63); ROUND4(B, C, D, A,  9, Sp, 64);
+
+       ctxt->md5_sta += A;
+       ctxt->md5_stb += B;
+       ctxt->md5_stc += C;
+       ctxt->md5_std += D;
+}
--- /dev/null
+++ b/crypto/ocf/safe/md5.h
@@ -0,0 +1,76 @@
+/*     $FreeBSD: src/sys/crypto/md5.h,v 1.4 2002/03/20 05:13:50 alfred Exp $   */
+/*     $KAME: md5.h,v 1.4 2000/03/27 04:36:22 sumikawa Exp $   */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _NETINET6_MD5_H_
+#define _NETINET6_MD5_H_
+
+#define MD5_BUFLEN     64
+
+typedef struct {
+       union {
+               u_int32_t       md5_state32[4];
+               u_int8_t        md5_state8[16];
+       } md5_st;
+
+#define md5_sta                md5_st.md5_state32[0]
+#define md5_stb                md5_st.md5_state32[1]
+#define md5_stc                md5_st.md5_state32[2]
+#define md5_std                md5_st.md5_state32[3]
+#define md5_st8                md5_st.md5_state8
+
+       union {
+               u_int64_t       md5_count64;
+               u_int8_t        md5_count8[8];
+       } md5_count;
+#define md5_n  md5_count.md5_count64
+#define md5_n8 md5_count.md5_count8
+
+       u_int   md5_i;
+       u_int8_t        md5_buf[MD5_BUFLEN];
+} md5_ctxt;
+
+extern void md5_init(md5_ctxt *);
+extern void md5_loop(md5_ctxt *, u_int8_t *, u_int);
+extern void md5_pad(md5_ctxt *);
+extern void md5_result(u_int8_t *, md5_ctxt *);
+
+/* compatibility */
+#define MD5_CTX                md5_ctxt
+#define MD5Init(x)     md5_init((x))
+#define MD5Update(x, y, z)     md5_loop((x), (y), (z))
+#define MD5Final(x, y) \
+do {                           \
+       md5_pad((y));           \
+       md5_result((x), (y));   \
+} while (0)
+
+#endif /* ! _NETINET6_MD5_H_*/
--- /dev/null
+++ b/crypto/ocf/safe/safe.c
@@ -0,0 +1,2288 @@
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2004-2007 David McCullough
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+__FBSDID("$FreeBSD: src/sys/dev/safe/safe.c,v 1.18 2007/03/21 03:42:50 sam Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <asm/io.h>
+
+/*
+ * SafeNet SafeXcel-1141 hardware crypto accelerator
+ */
+
+#include <cryptodev.h>
+#include <uio.h>
+#include <safe/safereg.h>
+#include <safe/safevar.h>
+
+#if 1
+#define        DPRINTF(a)      do { \
+                                               if (debug) { \
+                                                       printk("%s: ", sc ? \
+                                                               device_get_nameunit(sc->sc_dev) : "safe"); \
+                                                       printk a; \
+                                               } \
+                                       } while (0)
+#else
+#define        DPRINTF(a)
+#endif
+
+/*
+ * until we find a cleaner way, include the BSD md5/sha1 code
+ * here
+ */
+#define HMAC_HACK 1
+#ifdef HMAC_HACK
+#define LITTLE_ENDIAN 1234
+#define BIG_ENDIAN 4321
+#ifdef __LITTLE_ENDIAN
+#define BYTE_ORDER LITTLE_ENDIAN
+#endif
+#ifdef __BIG_ENDIAN
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+#include <safe/md5.h>
+#include <safe/md5.c>
+#include <safe/sha1.h>
+#include <safe/sha1.c>
+
+u_int8_t hmac_ipad_buffer[64] = {
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36,
+    0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36
+};
+
+u_int8_t hmac_opad_buffer[64] = {
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C,
+    0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C, 0x5C
+};
+#endif /* HMAC_HACK */
+
+/* add proc entry for this */
+struct safe_stats safestats;
+
+#define debug safe_debug
+int safe_debug = 0;
+module_param(safe_debug, int, 0644);
+MODULE_PARM_DESC(safe_debug, "Enable debug");
+
+static void safe_callback(struct safe_softc *, struct safe_ringentry *);
+static void safe_feed(struct safe_softc *, struct safe_ringentry *);
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+static void safe_rng_init(struct safe_softc *);
+int safe_rngbufsize = 8;               /* 32 bytes each read  */
+module_param(safe_rngbufsize, int, 0644);
+MODULE_PARM_DESC(safe_rngbufsize, "RNG polling buffer size (32-bit words)");
+int safe_rngmaxalarm = 8;              /* max alarms before reset */
+module_param(safe_rngmaxalarm, int, 0644);
+MODULE_PARM_DESC(safe_rngmaxalarm, "RNG max alarms before reset");
+#endif /* SAFE_NO_RNG */
+
+static void safe_totalreset(struct safe_softc *sc);
+static int safe_dmamap_aligned(struct safe_softc *sc, const struct safe_operand *op);
+static int safe_dmamap_uniform(struct safe_softc *sc, const struct safe_operand *op);
+static int safe_free_entry(struct safe_softc *sc, struct safe_ringentry *re);
+static int safe_kprocess(device_t dev, struct cryptkop *krp, int hint);
+static int safe_kstart(struct safe_softc *sc);
+static int safe_ksigbits(struct safe_softc *sc, struct crparam *cr);
+static void safe_kfeed(struct safe_softc *sc);
+static void safe_kpoll(unsigned long arg);
+static void safe_kload_reg(struct safe_softc *sc, u_int32_t off,
+                                                               u_int32_t len, struct crparam *n);
+
+static int safe_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int safe_freesession(device_t, u_int64_t);
+static int safe_process(device_t, struct cryptop *, int);
+
+static device_method_t safe_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, safe_newsession),
+       DEVMETHOD(cryptodev_freesession,safe_freesession),
+       DEVMETHOD(cryptodev_process,    safe_process),
+       DEVMETHOD(cryptodev_kprocess,   safe_kprocess),
+};
+
+#define        READ_REG(sc,r)                  readl((sc)->sc_base_addr + (r))
+#define WRITE_REG(sc,r,val)            writel((val), (sc)->sc_base_addr + (r))
+
+#define SAFE_MAX_CHIPS 8
+static struct safe_softc *safe_chip_idx[SAFE_MAX_CHIPS];
+
+/*
+ * split our buffers up into safe DMAable byte fragments to avoid lockup
+ * bug in 1141 HW on rev 1.0.
+ */
+
+static int
+pci_map_linear(
+       struct safe_softc *sc,
+       struct safe_operand *buf,
+       void *addr,
+       int len)
+{
+       dma_addr_t tmp;
+       int chunk, tlen = len;
+
+       tmp = pci_map_single(sc->sc_pcidev, addr, len, PCI_DMA_BIDIRECTIONAL);
+
+       buf->mapsize += len;
+       while (len > 0) {
+               chunk = (len > sc->sc_max_dsize) ? sc->sc_max_dsize : len;
+               buf->segs[buf->nsegs].ds_addr = tmp;
+               buf->segs[buf->nsegs].ds_len  = chunk;
+               buf->segs[buf->nsegs].ds_tlen = tlen;
+               buf->nsegs++;
+               tmp  += chunk;
+               len  -= chunk;
+               tlen = 0;
+       }
+       return 0;
+}
+
+/*
+ * map in a given uio buffer (great on some arches :-)
+ */
+
+static int
+pci_map_uio(struct safe_softc *sc, struct safe_operand *buf, struct uio *uio)
+{
+       struct iovec *iov = uio->uio_iov;
+       int n;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       buf->mapsize = 0;
+       buf->nsegs = 0;
+
+       for (n = 0; n < uio->uio_iovcnt; n++) {
+               pci_map_linear(sc, buf, iov->iov_base, iov->iov_len);
+               iov++;
+       }
+
+       /* identify this buffer by the first segment */
+       buf->map = (void *) buf->segs[0].ds_addr;
+       return(0);
+}
+
+/*
+ * map in a given sk_buff
+ */
+
+static int
+pci_map_skb(struct safe_softc *sc,struct safe_operand *buf,struct sk_buff *skb)
+{
+       int i;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       buf->mapsize = 0;
+       buf->nsegs = 0;
+
+       pci_map_linear(sc, buf, skb->data, skb_headlen(skb));
+
+       for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+               pci_map_linear(sc, buf,
+                               page_address(skb_shinfo(skb)->frags[i].page) +
+                                                       skb_shinfo(skb)->frags[i].page_offset,
+                               skb_shinfo(skb)->frags[i].size);
+       }
+
+       /* identify this buffer by the first segment */
+       buf->map = (void *) buf->segs[0].ds_addr;
+       return(0);
+}
+
+
+#if 0 /* not needed at this time */
+static void
+pci_sync_operand(struct safe_softc *sc, struct safe_operand *buf)
+{
+       int i;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+       for (i = 0; i < buf->nsegs; i++)
+               pci_dma_sync_single_for_cpu(sc->sc_pcidev, buf->segs[i].ds_addr,
+                               buf->segs[i].ds_len, PCI_DMA_BIDIRECTIONAL);
+}
+#endif
+
+static void
+pci_unmap_operand(struct safe_softc *sc, struct safe_operand *buf)
+{
+       int i;
+       DPRINTF(("%s()\n", __FUNCTION__));
+       for (i = 0; i < buf->nsegs; i++) {
+               if (buf->segs[i].ds_tlen) {
+                       DPRINTF(("%s - unmap %d 0x%x %d\n", __FUNCTION__, i, buf->segs[i].ds_addr, buf->segs[i].ds_tlen));
+                       pci_unmap_single(sc->sc_pcidev, buf->segs[i].ds_addr,
+                                       buf->segs[i].ds_tlen, PCI_DMA_BIDIRECTIONAL);
+                       DPRINTF(("%s - unmap %d 0x%x %d done\n", __FUNCTION__, i, buf->segs[i].ds_addr, buf->segs[i].ds_tlen));
+               }
+               buf->segs[i].ds_addr = 0;
+               buf->segs[i].ds_len = 0;
+               buf->segs[i].ds_tlen = 0;
+       }
+       buf->nsegs = 0;
+       buf->mapsize = 0;
+       buf->map = 0;
+}
+
+
+/*
+ * SafeXcel Interrupt routine
+ */
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+safe_intr(int irq, void *arg)
+#else
+safe_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+       struct safe_softc *sc = arg;
+       int stat;
+       unsigned long flags;
+
+       stat = READ_REG(sc, SAFE_HM_STAT);
+
+       DPRINTF(("%s(stat=0x%x)\n", __FUNCTION__, stat));
+
+       if (stat == 0)          /* shared irq, not for us */
+               return IRQ_NONE;
+
+       WRITE_REG(sc, SAFE_HI_CLR, stat);       /* IACK */
+
+       if ((stat & SAFE_INT_PE_DDONE)) {
+               /*
+                * Descriptor(s) done; scan the ring and
+                * process completed operations.
+                */
+               spin_lock_irqsave(&sc->sc_ringmtx, flags);
+               while (sc->sc_back != sc->sc_front) {
+                       struct safe_ringentry *re = sc->sc_back;
+
+#ifdef SAFE_DEBUG
+                       if (debug) {
+                               safe_dump_ringstate(sc, __func__);
+                               safe_dump_request(sc, __func__, re);
+                       }
+#endif
+                       /*
+                        * safe_process marks ring entries that were allocated
+                        * but not used with a csr of zero.  This insures the
+                        * ring front pointer never needs to be set backwards
+                        * in the event that an entry is allocated but not used
+                        * because of a setup error.
+                        */
+                       DPRINTF(("%s re->re_desc.d_csr=0x%x\n", __FUNCTION__, re->re_desc.d_csr));
+                       if (re->re_desc.d_csr != 0) {
+                               if (!SAFE_PE_CSR_IS_DONE(re->re_desc.d_csr)) {
+                                       DPRINTF(("%s !CSR_IS_DONE\n", __FUNCTION__));
+                                       break;
+                               }
+                               if (!SAFE_PE_LEN_IS_DONE(re->re_desc.d_len)) {
+                                       DPRINTF(("%s !LEN_IS_DONE\n", __FUNCTION__));
+                                       break;
+                               }
+                               sc->sc_nqchip--;
+                               safe_callback(sc, re);
+                       }
+                       if (++(sc->sc_back) == sc->sc_ringtop)
+                               sc->sc_back = sc->sc_ring;
+               }
+               spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+       }
+
+       /*
+        * Check to see if we got any DMA Error
+        */
+       if (stat & SAFE_INT_PE_ERROR) {
+               printk("%s: dmaerr dmastat %08x\n", device_get_nameunit(sc->sc_dev),
+                               (int)READ_REG(sc, SAFE_PE_DMASTAT));
+               safestats.st_dmaerr++;
+               safe_totalreset(sc);
+#if 0
+               safe_feed(sc);
+#endif
+       }
+
+       if (sc->sc_needwakeup) {                /* XXX check high watermark */
+               int wakeup = sc->sc_needwakeup & (CRYPTO_SYMQ|CRYPTO_ASYMQ);
+               DPRINTF(("%s: wakeup crypto %x\n", __func__,
+                       sc->sc_needwakeup));
+               sc->sc_needwakeup &= ~wakeup;
+               crypto_unblock(sc->sc_cid, wakeup);
+       }
+       
+       return IRQ_HANDLED;
+}
+
+/*
+ * safe_feed() - post a request to chip
+ */
+static void
+safe_feed(struct safe_softc *sc, struct safe_ringentry *re)
+{
+       DPRINTF(("%s()\n", __FUNCTION__));
+#ifdef SAFE_DEBUG
+       if (debug) {
+               safe_dump_ringstate(sc, __func__);
+               safe_dump_request(sc, __func__, re);
+       }
+#endif
+       sc->sc_nqchip++;
+       if (sc->sc_nqchip > safestats.st_maxqchip)
+               safestats.st_maxqchip = sc->sc_nqchip;
+       /* poke h/w to check descriptor ring, any value can be written */
+       WRITE_REG(sc, SAFE_HI_RD_DESCR, 0);
+}
+
+#define        N(a)    (sizeof(a) / sizeof (a[0]))
+static void
+safe_setup_enckey(struct safe_session *ses, caddr_t key)
+{
+       int i;
+
+       bcopy(key, ses->ses_key, ses->ses_klen / 8);
+
+       /* PE is little-endian, insure proper byte order */
+       for (i = 0; i < N(ses->ses_key); i++)
+               ses->ses_key[i] = htole32(ses->ses_key[i]);
+}
+
+static void
+safe_setup_mackey(struct safe_session *ses, int algo, caddr_t key, int klen)
+{
+#ifdef HMAC_HACK
+       MD5_CTX md5ctx;
+       SHA1_CTX sha1ctx;
+       int i;
+
+
+       for (i = 0; i < klen; i++)
+               key[i] ^= HMAC_IPAD_VAL;
+
+       if (algo == CRYPTO_MD5_HMAC) {
+               MD5Init(&md5ctx);
+               MD5Update(&md5ctx, key, klen);
+               MD5Update(&md5ctx, hmac_ipad_buffer, MD5_HMAC_BLOCK_LEN - klen);
+               bcopy(md5ctx.md5_st8, ses->ses_hminner, sizeof(md5ctx.md5_st8));
+       } else {
+               SHA1Init(&sha1ctx);
+               SHA1Update(&sha1ctx, key, klen);
+               SHA1Update(&sha1ctx, hmac_ipad_buffer,
+                   SHA1_HMAC_BLOCK_LEN - klen);
+               bcopy(sha1ctx.h.b32, ses->ses_hminner, sizeof(sha1ctx.h.b32));
+       }
+
+       for (i = 0; i < klen; i++)
+               key[i] ^= (HMAC_IPAD_VAL ^ HMAC_OPAD_VAL);
+
+       if (algo == CRYPTO_MD5_HMAC) {
+               MD5Init(&md5ctx);
+               MD5Update(&md5ctx, key, klen);
+               MD5Update(&md5ctx, hmac_opad_buffer, MD5_HMAC_BLOCK_LEN - klen);
+               bcopy(md5ctx.md5_st8, ses->ses_hmouter, sizeof(md5ctx.md5_st8));
+       } else {
+               SHA1Init(&sha1ctx);
+               SHA1Update(&sha1ctx, key, klen);
+               SHA1Update(&sha1ctx, hmac_opad_buffer,
+                   SHA1_HMAC_BLOCK_LEN - klen);
+               bcopy(sha1ctx.h.b32, ses->ses_hmouter, sizeof(sha1ctx.h.b32));
+       }
+
+       for (i = 0; i < klen; i++)
+               key[i] ^= HMAC_OPAD_VAL;
+
+#if 0
+       /*
+        * this code prevents SHA working on a BE host,
+        * so it is obviously wrong.  I think the byte
+        * swap setup we do with the chip fixes this for us
+        */
+
+       /* PE is little-endian, insure proper byte order */
+       for (i = 0; i < N(ses->ses_hminner); i++) {
+               ses->ses_hminner[i] = htole32(ses->ses_hminner[i]);
+               ses->ses_hmouter[i] = htole32(ses->ses_hmouter[i]);
+       }
+#endif
+#else /* HMAC_HACK */
+       printk("safe: md5/sha not implemented\n");
+#endif /* HMAC_HACK */
+}
+#undef N
+
+/*
+ * Allocate a new 'session' and return an encoded session id.  'sidp'
+ * contains our registration id, and should contain an encoded session
+ * id on successful allocation.
+ */
+static int
+safe_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+       struct safe_softc *sc = device_get_softc(dev);
+       struct cryptoini *c, *encini = NULL, *macini = NULL;
+       struct safe_session *ses = NULL;
+       int sesn;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (sidp == NULL || cri == NULL || sc == NULL)
+               return (EINVAL);
+
+       for (c = cri; c != NULL; c = c->cri_next) {
+               if (c->cri_alg == CRYPTO_MD5_HMAC ||
+                   c->cri_alg == CRYPTO_SHA1_HMAC ||
+                   c->cri_alg == CRYPTO_NULL_HMAC) {
+                       if (macini)
+                               return (EINVAL);
+                       macini = c;
+               } else if (c->cri_alg == CRYPTO_DES_CBC ||
+                   c->cri_alg == CRYPTO_3DES_CBC ||
+                   c->cri_alg == CRYPTO_AES_CBC ||
+                   c->cri_alg == CRYPTO_NULL_CBC) {
+                       if (encini)
+                               return (EINVAL);
+                       encini = c;
+               } else
+                       return (EINVAL);
+       }
+       if (encini == NULL && macini == NULL)
+               return (EINVAL);
+       if (encini) {                   /* validate key length */
+               switch (encini->cri_alg) {
+               case CRYPTO_DES_CBC:
+                       if (encini->cri_klen != 64)
+                               return (EINVAL);
+                       break;
+               case CRYPTO_3DES_CBC:
+                       if (encini->cri_klen != 192)
+                               return (EINVAL);
+                       break;
+               case CRYPTO_AES_CBC:
+                       if (encini->cri_klen != 128 &&
+                           encini->cri_klen != 192 &&
+                           encini->cri_klen != 256)
+                               return (EINVAL);
+                       break;
+               }
+       }
+
+       if (sc->sc_sessions == NULL) {
+               ses = sc->sc_sessions = (struct safe_session *)
+                       kmalloc(sizeof(struct safe_session), SLAB_ATOMIC);
+               if (ses == NULL)
+                       return (ENOMEM);
+               memset(ses, 0, sizeof(struct safe_session));
+               sesn = 0;
+               sc->sc_nsessions = 1;
+       } else {
+               for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+                       if (sc->sc_sessions[sesn].ses_used == 0) {
+                               ses = &sc->sc_sessions[sesn];
+                               break;
+                       }
+               }
+
+               if (ses == NULL) {
+                       sesn = sc->sc_nsessions;
+                       ses = (struct safe_session *)
+                               kmalloc((sesn + 1) * sizeof(struct safe_session), SLAB_ATOMIC);
+                       if (ses == NULL)
+                               return (ENOMEM);
+                       memset(ses, 0, (sesn + 1) * sizeof(struct safe_session));
+                       bcopy(sc->sc_sessions, ses, sesn *
+                           sizeof(struct safe_session));
+                       bzero(sc->sc_sessions, sesn *
+                           sizeof(struct safe_session));
+                       kfree(sc->sc_sessions);
+                       sc->sc_sessions = ses;
+                       ses = &sc->sc_sessions[sesn];
+                       sc->sc_nsessions++;
+               }
+       }
+
+       bzero(ses, sizeof(struct safe_session));
+       ses->ses_used = 1;
+
+       if (encini) {
+               /* get an IV */
+               /* XXX may read fewer than requested */
+               read_random(ses->ses_iv, sizeof(ses->ses_iv));
+
+               ses->ses_klen = encini->cri_klen;
+               if (encini->cri_key != NULL)
+                       safe_setup_enckey(ses, encini->cri_key);
+       }
+
+       if (macini) {
+               ses->ses_mlen = macini->cri_mlen;
+               if (ses->ses_mlen == 0) {
+                       if (macini->cri_alg == CRYPTO_MD5_HMAC)
+                               ses->ses_mlen = MD5_HASH_LEN;
+                       else
+                               ses->ses_mlen = SHA1_HASH_LEN;
+               }
+
+               if (macini->cri_key != NULL) {
+                       safe_setup_mackey(ses, macini->cri_alg, macini->cri_key,
+                           macini->cri_klen / 8);
+               }
+       }
+
+       *sidp = SAFE_SID(device_get_unit(sc->sc_dev), sesn);
+       return (0);
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+safe_freesession(device_t dev, u_int64_t tid)
+{
+       struct safe_softc *sc = device_get_softc(dev);
+       int session, ret;
+       u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (sc == NULL)
+               return (EINVAL);
+
+       session = SAFE_SESSION(sid);
+       if (session < sc->sc_nsessions) {
+               bzero(&sc->sc_sessions[session], sizeof(sc->sc_sessions[session]));
+               ret = 0;
+       } else
+               ret = EINVAL;
+       return (ret);
+}
+
+
+static int
+safe_process(device_t dev, struct cryptop *crp, int hint)
+{
+       struct safe_softc *sc = device_get_softc(dev);
+       int err = 0, i, nicealign, uniform;
+       struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+       int bypass, oplen, ivsize;
+       caddr_t iv;
+       int16_t coffset;
+       struct safe_session *ses;
+       struct safe_ringentry *re;
+       struct safe_sarec *sa;
+       struct safe_pdesc *pd;
+       u_int32_t cmd0, cmd1, staterec;
+       unsigned long flags;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
+               safestats.st_invalid++;
+               return (EINVAL);
+       }
+       if (SAFE_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
+               safestats.st_badsession++;
+               return (EINVAL);
+       }
+
+       spin_lock_irqsave(&sc->sc_ringmtx, flags);
+       if (sc->sc_front == sc->sc_back && sc->sc_nqchip != 0) {
+               safestats.st_ringfull++;
+               sc->sc_needwakeup |= CRYPTO_SYMQ;
+               spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+               return (ERESTART);
+       }
+       re = sc->sc_front;
+
+       staterec = re->re_sa.sa_staterec;       /* save */
+       /* NB: zero everything but the PE descriptor */
+       bzero(&re->re_sa, sizeof(struct safe_ringentry) - sizeof(re->re_desc));
+       re->re_sa.sa_staterec = staterec;       /* restore */
+
+       re->re_crp = crp;
+       re->re_sesn = SAFE_SESSION(crp->crp_sid);
+
+       re->re_src.nsegs = 0;
+       re->re_dst.nsegs = 0;
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               re->re_src_skb = (struct sk_buff *)crp->crp_buf;
+               re->re_dst_skb = (struct sk_buff *)crp->crp_buf;
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               re->re_src_io = (struct uio *)crp->crp_buf;
+               re->re_dst_io = (struct uio *)crp->crp_buf;
+       } else {
+               safestats.st_badflags++;
+               err = EINVAL;
+               goto errout;    /* XXX we don't handle contiguous blocks! */
+       }
+
+       sa = &re->re_sa;
+       ses = &sc->sc_sessions[re->re_sesn];
+
+       crd1 = crp->crp_desc;
+       if (crd1 == NULL) {
+               safestats.st_nodesc++;
+               err = EINVAL;
+               goto errout;
+       }
+       crd2 = crd1->crd_next;
+
+       cmd0 = SAFE_SA_CMD0_BASIC;              /* basic group operation */
+       cmd1 = 0;
+       if (crd2 == NULL) {
+               if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                   crd1->crd_alg == CRYPTO_NULL_HMAC) {
+                       maccrd = crd1;
+                       enccrd = NULL;
+                       cmd0 |= SAFE_SA_CMD0_OP_HASH;
+               } else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+                   crd1->crd_alg == CRYPTO_3DES_CBC ||
+                   crd1->crd_alg == CRYPTO_AES_CBC ||
+                   crd1->crd_alg == CRYPTO_NULL_CBC) {
+                       maccrd = NULL;
+                       enccrd = crd1;
+                       cmd0 |= SAFE_SA_CMD0_OP_CRYPT;
+               } else {
+                       safestats.st_badalg++;
+                       err = EINVAL;
+                       goto errout;
+               }
+       } else {
+               if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                   crd1->crd_alg == CRYPTO_NULL_HMAC) &&
+                   (crd2->crd_alg == CRYPTO_DES_CBC ||
+                       crd2->crd_alg == CRYPTO_3DES_CBC ||
+                       crd2->crd_alg == CRYPTO_AES_CBC ||
+                       crd2->crd_alg == CRYPTO_NULL_CBC) &&
+                   ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+                       maccrd = crd1;
+                       enccrd = crd2;
+               } else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+                   crd1->crd_alg == CRYPTO_3DES_CBC ||
+                   crd1->crd_alg == CRYPTO_AES_CBC ||
+                   crd1->crd_alg == CRYPTO_NULL_CBC) &&
+                   (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+                       crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+                       crd2->crd_alg == CRYPTO_NULL_HMAC) &&
+                   (crd1->crd_flags & CRD_F_ENCRYPT)) {
+                       enccrd = crd1;
+                       maccrd = crd2;
+               } else {
+                       safestats.st_badalg++;
+                       err = EINVAL;
+                       goto errout;
+               }
+               cmd0 |= SAFE_SA_CMD0_OP_BOTH;
+       }
+
+       if (enccrd) {
+               if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT)
+                       safe_setup_enckey(ses, enccrd->crd_key);
+
+               if (enccrd->crd_alg == CRYPTO_DES_CBC) {
+                       cmd0 |= SAFE_SA_CMD0_DES;
+                       cmd1 |= SAFE_SA_CMD1_CBC;
+                       ivsize = 2*sizeof(u_int32_t);
+               } else if (enccrd->crd_alg == CRYPTO_3DES_CBC) {
+                       cmd0 |= SAFE_SA_CMD0_3DES;
+                       cmd1 |= SAFE_SA_CMD1_CBC;
+                       ivsize = 2*sizeof(u_int32_t);
+               } else if (enccrd->crd_alg == CRYPTO_AES_CBC) {
+                       cmd0 |= SAFE_SA_CMD0_AES;
+                       cmd1 |= SAFE_SA_CMD1_CBC;
+                       if (ses->ses_klen == 128)
+                            cmd1 |=  SAFE_SA_CMD1_AES128;
+                       else if (ses->ses_klen == 192)
+                            cmd1 |=  SAFE_SA_CMD1_AES192;
+                       else
+                            cmd1 |=  SAFE_SA_CMD1_AES256;
+                       ivsize = 4*sizeof(u_int32_t);
+               } else {
+                       cmd0 |= SAFE_SA_CMD0_CRYPT_NULL;
+                       ivsize = 0;
+               }
+
+               /*
+                * Setup encrypt/decrypt state.  When using basic ops
+                * we can't use an inline IV because hash/crypt offset
+                * must be from the end of the IV to the start of the
+                * crypt data and this leaves out the preceding header
+                * from the hash calculation.  Instead we place the IV
+                * in the state record and set the hash/crypt offset to
+                * copy both the header+IV.
+                */
+               if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+                       cmd0 |= SAFE_SA_CMD0_OUTBOUND;
+
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                               iv = enccrd->crd_iv;
+                       else
+                               iv = (caddr_t) ses->ses_iv;
+                       if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+                               crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                   enccrd->crd_inject, ivsize, iv);
+                       }
+                       bcopy(iv, re->re_sastate.sa_saved_iv, ivsize);
+                       /* make iv LE */
+                       for (i = 0; i < ivsize/sizeof(re->re_sastate.sa_saved_iv[0]); i++)
+                               re->re_sastate.sa_saved_iv[i] =
+                                       cpu_to_le32(re->re_sastate.sa_saved_iv[i]);
+                       cmd0 |= SAFE_SA_CMD0_IVLD_STATE | SAFE_SA_CMD0_SAVEIV;
+                       re->re_flags |= SAFE_QFLAGS_COPYOUTIV;
+               } else {
+                       cmd0 |= SAFE_SA_CMD0_INBOUND;
+
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+                               bcopy(enccrd->crd_iv,
+                                       re->re_sastate.sa_saved_iv, ivsize);
+                       } else {
+                               crypto_copydata(crp->crp_flags, crp->crp_buf,
+                                   enccrd->crd_inject, ivsize,
+                                   (caddr_t)re->re_sastate.sa_saved_iv);
+                       }
+                       /* make iv LE */
+                       for (i = 0; i < ivsize/sizeof(re->re_sastate.sa_saved_iv[0]); i++)
+                               re->re_sastate.sa_saved_iv[i] =
+                                       cpu_to_le32(re->re_sastate.sa_saved_iv[i]);
+                       cmd0 |= SAFE_SA_CMD0_IVLD_STATE;
+               }
+               /*
+                * For basic encryption use the zero pad algorithm.
+                * This pads results to an 8-byte boundary and
+                * suppresses padding verification for inbound (i.e.
+                * decrypt) operations.
+                *
+                * NB: Not sure if the 8-byte pad boundary is a problem.
+                */
+               cmd0 |= SAFE_SA_CMD0_PAD_ZERO;
+
+               /* XXX assert key bufs have the same size */
+               bcopy(ses->ses_key, sa->sa_key, sizeof(sa->sa_key));
+       }
+
+       if (maccrd) {
+               if (maccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
+                       safe_setup_mackey(ses, maccrd->crd_alg,
+                           maccrd->crd_key, maccrd->crd_klen / 8);
+               }
+
+               if (maccrd->crd_alg == CRYPTO_MD5_HMAC) {
+                       cmd0 |= SAFE_SA_CMD0_MD5;
+                       cmd1 |= SAFE_SA_CMD1_HMAC;      /* NB: enable HMAC */
+               } else if (maccrd->crd_alg == CRYPTO_SHA1_HMAC) {
+                       cmd0 |= SAFE_SA_CMD0_SHA1;
+                       cmd1 |= SAFE_SA_CMD1_HMAC;      /* NB: enable HMAC */
+               } else {
+                       cmd0 |= SAFE_SA_CMD0_HASH_NULL;
+               }
+               /*
+                * Digest data is loaded from the SA and the hash
+                * result is saved to the state block where we
+                * retrieve it for return to the caller.
+                */
+               /* XXX assert digest bufs have the same size */
+               bcopy(ses->ses_hminner, sa->sa_indigest,
+                       sizeof(sa->sa_indigest));
+               bcopy(ses->ses_hmouter, sa->sa_outdigest,
+                       sizeof(sa->sa_outdigest));
+
+               cmd0 |= SAFE_SA_CMD0_HSLD_SA | SAFE_SA_CMD0_SAVEHASH;
+               re->re_flags |= SAFE_QFLAGS_COPYOUTICV;
+       }
+
+       if (enccrd && maccrd) {
+               /*
+                * The offset from hash data to the start of
+                * crypt data is the difference in the skips.
+                */
+               bypass = maccrd->crd_skip;
+               coffset = enccrd->crd_skip - maccrd->crd_skip;
+               if (coffset < 0) {
+                       DPRINTF(("%s: hash does not precede crypt; "
+                               "mac skip %u enc skip %u\n",
+                               __func__, maccrd->crd_skip, enccrd->crd_skip));
+                       safestats.st_skipmismatch++;
+                       err = EINVAL;
+                       goto errout;
+               }
+               oplen = enccrd->crd_skip + enccrd->crd_len;
+               if (maccrd->crd_skip + maccrd->crd_len != oplen) {
+                       DPRINTF(("%s: hash amount %u != crypt amount %u\n",
+                               __func__, maccrd->crd_skip + maccrd->crd_len,
+                               oplen));
+                       safestats.st_lenmismatch++;
+                       err = EINVAL;
+                       goto errout;
+               }
+#ifdef SAFE_DEBUG
+               if (debug) {
+                       printf("mac: skip %d, len %d, inject %d\n",
+                           maccrd->crd_skip, maccrd->crd_len,
+                           maccrd->crd_inject);
+                       printf("enc: skip %d, len %d, inject %d\n",
+                           enccrd->crd_skip, enccrd->crd_len,
+                           enccrd->crd_inject);
+                       printf("bypass %d coffset %d oplen %d\n",
+                               bypass, coffset, oplen);
+               }
+#endif
+               if (coffset & 3) {      /* offset must be 32-bit aligned */
+                       DPRINTF(("%s: coffset %u misaligned\n",
+                               __func__, coffset));
+                       safestats.st_coffmisaligned++;
+                       err = EINVAL;
+                       goto errout;
+               }
+               coffset >>= 2;
+               if (coffset > 255) {    /* offset must be <256 dwords */
+                       DPRINTF(("%s: coffset %u too big\n",
+                               __func__, coffset));
+                       safestats.st_cofftoobig++;
+                       err = EINVAL;
+                       goto errout;
+               }
+               /*
+                * Tell the hardware to copy the header to the output.
+                * The header is defined as the data from the end of
+                * the bypass to the start of data to be encrypted. 
+                * Typically this is the inline IV.  Note that you need
+                * to do this even if src+dst are the same; it appears
+                * that w/o this bit the crypted data is written
+                * immediately after the bypass data.
+                */
+               cmd1 |= SAFE_SA_CMD1_HDRCOPY;
+               /*
+                * Disable IP header mutable bit handling.  This is
+                * needed to get correct HMAC calculations.
+                */
+               cmd1 |= SAFE_SA_CMD1_MUTABLE;
+       } else {
+               if (enccrd) {
+                       bypass = enccrd->crd_skip;
+                       oplen = bypass + enccrd->crd_len;
+               } else {
+                       bypass = maccrd->crd_skip;
+                       oplen = bypass + maccrd->crd_len;
+               }
+               coffset = 0;
+       }
+       /* XXX verify multiple of 4 when using s/g */
+       if (bypass > 96) {              /* bypass offset must be <= 96 bytes */
+               DPRINTF(("%s: bypass %u too big\n", __func__, bypass));
+               safestats.st_bypasstoobig++;
+               err = EINVAL;
+               goto errout;
+       }
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               if (pci_map_skb(sc, &re->re_src, re->re_src_skb)) {
+                       safestats.st_noload++;
+                       err = ENOMEM;
+                       goto errout;
+               }
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               if (pci_map_uio(sc, &re->re_src, re->re_src_io)) {
+                       safestats.st_noload++;
+                       err = ENOMEM;
+                       goto errout;
+               }
+       }
+       nicealign = safe_dmamap_aligned(sc, &re->re_src);
+       uniform = safe_dmamap_uniform(sc, &re->re_src);
+
+       DPRINTF(("src nicealign %u uniform %u nsegs %u\n",
+               nicealign, uniform, re->re_src.nsegs));
+       if (re->re_src.nsegs > 1) {
+               re->re_desc.d_src = sc->sc_spalloc.dma_paddr +
+                       ((caddr_t) sc->sc_spfree - (caddr_t) sc->sc_spring);
+               for (i = 0; i < re->re_src_nsegs; i++) {
+                       /* NB: no need to check if there's space */
+                       pd = sc->sc_spfree;
+                       if (++(sc->sc_spfree) == sc->sc_springtop)
+                               sc->sc_spfree = sc->sc_spring;
+
+                       KASSERT((pd->pd_flags&3) == 0 ||
+                               (pd->pd_flags&3) == SAFE_PD_DONE,
+                               ("bogus source particle descriptor; flags %x",
+                               pd->pd_flags));
+                       pd->pd_addr = re->re_src_segs[i].ds_addr;
+                       pd->pd_size = re->re_src_segs[i].ds_len;
+                       pd->pd_flags = SAFE_PD_READY;
+               }
+               cmd0 |= SAFE_SA_CMD0_IGATHER;
+       } else {
+               /*
+                * No need for gather, reference the operand directly.
+                */
+               re->re_desc.d_src = re->re_src_segs[0].ds_addr;
+       }
+
+       if (enccrd == NULL && maccrd != NULL) {
+               /*
+                * Hash op; no destination needed.
+                */
+       } else {
+               if (crp->crp_flags & (CRYPTO_F_IOV|CRYPTO_F_SKBUF)) {
+                       if (!nicealign) {
+                               safestats.st_iovmisaligned++;
+                               err = EINVAL;
+                               goto errout;
+                       }
+                       if (uniform != 1) {
+                               device_printf(sc->sc_dev, "!uniform source\n");
+                               if (!uniform) {
+                                       /*
+                                        * There's no way to handle the DMA
+                                        * requirements with this uio.  We
+                                        * could create a separate DMA area for
+                                        * the result and then copy it back,
+                                        * but for now we just bail and return
+                                        * an error.  Note that uio requests
+                                        * > SAFE_MAX_DSIZE are handled because
+                                        * the DMA map and segment list for the
+                                        * destination wil result in a
+                                        * destination particle list that does
+                                        * the necessary scatter DMA.
+                                        */ 
+                                       safestats.st_iovnotuniform++;
+                                       err = EINVAL;
+                                       goto errout;
+                               }
+                       } else
+                               re->re_dst = re->re_src;
+               } else {
+                       safestats.st_badflags++;
+                       err = EINVAL;
+                       goto errout;
+               }
+
+               if (re->re_dst.nsegs > 1) {
+                       re->re_desc.d_dst = sc->sc_dpalloc.dma_paddr +
+                           ((caddr_t) sc->sc_dpfree - (caddr_t) sc->sc_dpring);
+                       for (i = 0; i < re->re_dst_nsegs; i++) {
+                               pd = sc->sc_dpfree;
+                               KASSERT((pd->pd_flags&3) == 0 ||
+                                       (pd->pd_flags&3) == SAFE_PD_DONE,
+                                       ("bogus dest particle descriptor; flags %x",
+                                               pd->pd_flags));
+                               if (++(sc->sc_dpfree) == sc->sc_dpringtop)
+                                       sc->sc_dpfree = sc->sc_dpring;
+                               pd->pd_addr = re->re_dst_segs[i].ds_addr;
+                               pd->pd_flags = SAFE_PD_READY;
+                       }
+                       cmd0 |= SAFE_SA_CMD0_OSCATTER;
+               } else {
+                       /*
+                        * No need for scatter, reference the operand directly.
+                        */
+                       re->re_desc.d_dst = re->re_dst_segs[0].ds_addr;
+               }
+       }
+
+       /*
+        * All done with setup; fillin the SA command words
+        * and the packet engine descriptor.  The operation
+        * is now ready for submission to the hardware.
+        */
+       sa->sa_cmd0 = cmd0 | SAFE_SA_CMD0_IPCI | SAFE_SA_CMD0_OPCI;
+       sa->sa_cmd1 = cmd1
+                   | (coffset << SAFE_SA_CMD1_OFFSET_S)
+                   | SAFE_SA_CMD1_SAREV1       /* Rev 1 SA data structure */
+                   | SAFE_SA_CMD1_SRPCI
+                   ;
+       /*
+        * NB: the order of writes is important here.  In case the
+        * chip is scanning the ring because of an outstanding request
+        * it might nab this one too.  In that case we need to make
+        * sure the setup is complete before we write the length
+        * field of the descriptor as it signals the descriptor is
+        * ready for processing.
+        */
+       re->re_desc.d_csr = SAFE_PE_CSR_READY | SAFE_PE_CSR_SAPCI;
+       if (maccrd)
+               re->re_desc.d_csr |= SAFE_PE_CSR_LOADSA | SAFE_PE_CSR_HASHFINAL;
+       wmb();
+       re->re_desc.d_len = oplen
+                         | SAFE_PE_LEN_READY
+                         | (bypass << SAFE_PE_LEN_BYPASS_S)
+                         ;
+
+       safestats.st_ipackets++;
+       safestats.st_ibytes += oplen;
+
+       if (++(sc->sc_front) == sc->sc_ringtop)
+               sc->sc_front = sc->sc_ring;
+
+       /* XXX honor batching */
+       safe_feed(sc, re);
+       spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+       return (0);
+
+errout:
+       if (re->re_src.map != re->re_dst.map)
+               pci_unmap_operand(sc, &re->re_dst);
+       if (re->re_src.map)
+               pci_unmap_operand(sc, &re->re_src);
+       spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+       if (err != ERESTART) {
+               crp->crp_etype = err;
+               crypto_done(crp);
+       } else {
+               sc->sc_needwakeup |= CRYPTO_SYMQ;
+       }
+       return (err);
+}
+
+static void
+safe_callback(struct safe_softc *sc, struct safe_ringentry *re)
+{
+       struct cryptop *crp = (struct cryptop *)re->re_crp;
+       struct cryptodesc *crd;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       safestats.st_opackets++;
+       safestats.st_obytes += re->re_dst.mapsize;
+
+       if (re->re_desc.d_csr & SAFE_PE_CSR_STATUS) {
+               device_printf(sc->sc_dev, "csr 0x%x cmd0 0x%x cmd1 0x%x\n",
+                       re->re_desc.d_csr,
+                       re->re_sa.sa_cmd0, re->re_sa.sa_cmd1);
+               safestats.st_peoperr++;
+               crp->crp_etype = EIO;           /* something more meaningful? */
+       }
+
+       if (re->re_dst.map != NULL && re->re_dst.map != re->re_src.map)
+               pci_unmap_operand(sc, &re->re_dst);
+       pci_unmap_operand(sc, &re->re_src);
+
+       /* 
+        * If result was written to a differet mbuf chain, swap
+        * it in as the return value and reclaim the original.
+        */
+       if ((crp->crp_flags & CRYPTO_F_SKBUF) && re->re_src_skb != re->re_dst_skb) {
+               device_printf(sc->sc_dev, "no CRYPTO_F_SKBUF swapping support\n");
+               /* kfree_skb(skb) */
+               /* crp->crp_buf = (caddr_t)re->re_dst_skb */
+               return;
+       }
+
+       if (re->re_flags & SAFE_QFLAGS_COPYOUTIV) {
+               /* copy out IV for future use */
+               for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+                       int i;
+                       int ivsize;
+
+                       if (crd->crd_alg == CRYPTO_DES_CBC ||
+                           crd->crd_alg == CRYPTO_3DES_CBC) {
+                               ivsize = 2*sizeof(u_int32_t);
+                       } else if (crd->crd_alg == CRYPTO_AES_CBC) {
+                               ivsize = 4*sizeof(u_int32_t);
+                       } else
+                               continue;
+                       crypto_copydata(crp->crp_flags, crp->crp_buf,
+                           crd->crd_skip + crd->crd_len - ivsize, ivsize,
+                           (caddr_t)sc->sc_sessions[re->re_sesn].ses_iv);
+                       for (i = 0;
+                                       i < ivsize/sizeof(sc->sc_sessions[re->re_sesn].ses_iv[0]);
+                                       i++)
+                               sc->sc_sessions[re->re_sesn].ses_iv[i] =
+                                       cpu_to_le32(sc->sc_sessions[re->re_sesn].ses_iv[i]);
+                       break;
+               }
+       }
+
+       if (re->re_flags & SAFE_QFLAGS_COPYOUTICV) {
+               /* copy out ICV result */
+               for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+                       if (!(crd->crd_alg == CRYPTO_MD5_HMAC ||
+                           crd->crd_alg == CRYPTO_SHA1_HMAC ||
+                           crd->crd_alg == CRYPTO_NULL_HMAC))
+                               continue;
+                       if (crd->crd_alg == CRYPTO_SHA1_HMAC) {
+                               /*
+                                * SHA-1 ICV's are byte-swapped; fix 'em up
+                                * before copy them to their destination.
+                                */
+                               re->re_sastate.sa_saved_indigest[0] =
+                                       cpu_to_be32(re->re_sastate.sa_saved_indigest[0]);
+                               re->re_sastate.sa_saved_indigest[1] = 
+                                       cpu_to_be32(re->re_sastate.sa_saved_indigest[1]);
+                               re->re_sastate.sa_saved_indigest[2] =
+                                       cpu_to_be32(re->re_sastate.sa_saved_indigest[2]);
+                       } else {
+                               re->re_sastate.sa_saved_indigest[0] =
+                                       cpu_to_le32(re->re_sastate.sa_saved_indigest[0]);
+                               re->re_sastate.sa_saved_indigest[1] = 
+                                       cpu_to_le32(re->re_sastate.sa_saved_indigest[1]);
+                               re->re_sastate.sa_saved_indigest[2] =
+                                       cpu_to_le32(re->re_sastate.sa_saved_indigest[2]);
+                       }
+                       crypto_copyback(crp->crp_flags, crp->crp_buf,
+                           crd->crd_inject,
+                           sc->sc_sessions[re->re_sesn].ses_mlen,
+                           (caddr_t)re->re_sastate.sa_saved_indigest);
+                       break;
+               }
+       }
+       crypto_done(crp);
+}
+
+
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+#define        SAFE_RNG_MAXWAIT        1000
+
+static void
+safe_rng_init(struct safe_softc *sc)
+{
+       u_int32_t w, v;
+       int i;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       WRITE_REG(sc, SAFE_RNG_CTRL, 0);
+       /* use default value according to the manual */
+       WRITE_REG(sc, SAFE_RNG_CNFG, 0x834);    /* magic from SafeNet */
+       WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+       /*
+        * There is a bug in rev 1.0 of the 1140 that when the RNG
+        * is brought out of reset the ready status flag does not
+        * work until the RNG has finished its internal initialization.
+        *
+        * So in order to determine the device is through its
+        * initialization we must read the data register, using the
+        * status reg in the read in case it is initialized.  Then read
+        * the data register until it changes from the first read.
+        * Once it changes read the data register until it changes
+        * again.  At this time the RNG is considered initialized. 
+        * This could take between 750ms - 1000ms in time.
+        */
+       i = 0;
+       w = READ_REG(sc, SAFE_RNG_OUT);
+       do {
+               v = READ_REG(sc, SAFE_RNG_OUT);
+               if (v != w) {
+                       w = v;
+                       break;
+               }
+               DELAY(10);
+       } while (++i < SAFE_RNG_MAXWAIT);
+
+       /* Wait Until data changes again */
+       i = 0;
+       do {
+               v = READ_REG(sc, SAFE_RNG_OUT);
+               if (v != w)
+                       break;
+               DELAY(10);
+       } while (++i < SAFE_RNG_MAXWAIT);
+}
+
+static __inline void
+safe_rng_disable_short_cycle(struct safe_softc *sc)
+{
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       WRITE_REG(sc, SAFE_RNG_CTRL,
+               READ_REG(sc, SAFE_RNG_CTRL) &~ SAFE_RNG_CTRL_SHORTEN);
+}
+
+static __inline void
+safe_rng_enable_short_cycle(struct safe_softc *sc)
+{
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       WRITE_REG(sc, SAFE_RNG_CTRL, 
+               READ_REG(sc, SAFE_RNG_CTRL) | SAFE_RNG_CTRL_SHORTEN);
+}
+
+static __inline u_int32_t
+safe_rng_read(struct safe_softc *sc)
+{
+       int i;
+
+       i = 0;
+       while (READ_REG(sc, SAFE_RNG_STAT) != 0 && ++i < SAFE_RNG_MAXWAIT)
+               ;
+       return READ_REG(sc, SAFE_RNG_OUT);
+}
+
+static int
+safe_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+       struct safe_softc *sc = (struct safe_softc *) arg;
+       int i, rc;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+       
+       safestats.st_rng++;
+       /*
+        * Fetch the next block of data.
+        */
+       if (maxwords > safe_rngbufsize)
+               maxwords = safe_rngbufsize;
+       if (maxwords > SAFE_RNG_MAXBUFSIZ)
+               maxwords = SAFE_RNG_MAXBUFSIZ;
+retry:
+       /* read as much as we can */
+       for (rc = 0; rc < maxwords; rc++) {
+               if (READ_REG(sc, SAFE_RNG_STAT) != 0)
+                       break;
+               buf[rc] = READ_REG(sc, SAFE_RNG_OUT);
+       }
+       if (rc == 0)
+               return 0;
+       /*
+        * Check the comparator alarm count and reset the h/w if
+        * it exceeds our threshold.  This guards against the
+        * hardware oscillators resonating with external signals.
+        */
+       if (READ_REG(sc, SAFE_RNG_ALM_CNT) > safe_rngmaxalarm) {
+               u_int32_t freq_inc, w;
+
+               DPRINTF(("%s: alarm count %u exceeds threshold %u\n", __func__,
+                       (unsigned)READ_REG(sc, SAFE_RNG_ALM_CNT), safe_rngmaxalarm));
+               safestats.st_rngalarm++;
+               safe_rng_enable_short_cycle(sc);
+               freq_inc = 18;
+               for (i = 0; i < 64; i++) {
+                       w = READ_REG(sc, SAFE_RNG_CNFG);
+                       freq_inc = ((w + freq_inc) & 0x3fL);
+                       w = ((w & ~0x3fL) | freq_inc);
+                       WRITE_REG(sc, SAFE_RNG_CNFG, w);
+
+                       WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+                       (void) safe_rng_read(sc);
+                       DELAY(25);
+
+                       if (READ_REG(sc, SAFE_RNG_ALM_CNT) == 0) {
+                               safe_rng_disable_short_cycle(sc);
+                               goto retry;
+                       }
+                       freq_inc = 1;
+               }
+               safe_rng_disable_short_cycle(sc);
+       } else
+               WRITE_REG(sc, SAFE_RNG_ALM_CNT, 0);
+
+       return(rc);
+}
+#endif /* defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG) */
+
+
+/*
+ * Resets the board.  Values in the regesters are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+safe_reset_board(struct safe_softc *sc)
+{
+       u_int32_t v;
+       /*
+        * Reset the device.  The manual says no delay
+        * is needed between marking and clearing reset.
+        */
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       v = READ_REG(sc, SAFE_PE_DMACFG) &~
+               (SAFE_PE_DMACFG_PERESET | SAFE_PE_DMACFG_PDRRESET |
+                SAFE_PE_DMACFG_SGRESET);
+       WRITE_REG(sc, SAFE_PE_DMACFG, v
+                                   | SAFE_PE_DMACFG_PERESET
+                                   | SAFE_PE_DMACFG_PDRRESET
+                                   | SAFE_PE_DMACFG_SGRESET);
+       WRITE_REG(sc, SAFE_PE_DMACFG, v);
+}
+
+/*
+ * Initialize registers we need to touch only once.
+ */
+static void
+safe_init_board(struct safe_softc *sc)
+{
+       u_int32_t v, dwords;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       v = READ_REG(sc, SAFE_PE_DMACFG);
+       v &=~ (   SAFE_PE_DMACFG_PEMODE
+                       | SAFE_PE_DMACFG_FSENA          /* failsafe enable */
+                       | SAFE_PE_DMACFG_GPRPCI         /* gather ring on PCI */
+                       | SAFE_PE_DMACFG_SPRPCI         /* scatter ring on PCI */
+                       | SAFE_PE_DMACFG_ESDESC         /* endian-swap descriptors */
+                       | SAFE_PE_DMACFG_ESPDESC        /* endian-swap part. desc's */
+                       | SAFE_PE_DMACFG_ESSA           /* endian-swap SA's */
+                       | SAFE_PE_DMACFG_ESPACKET       /* swap the packet data */
+                 );
+       v |= SAFE_PE_DMACFG_FSENA               /* failsafe enable */
+         |  SAFE_PE_DMACFG_GPRPCI              /* gather ring on PCI */
+         |  SAFE_PE_DMACFG_SPRPCI              /* scatter ring on PCI */
+         |  SAFE_PE_DMACFG_ESDESC              /* endian-swap descriptors */
+         |  SAFE_PE_DMACFG_ESPDESC             /* endian-swap part. desc's */
+         |  SAFE_PE_DMACFG_ESSA                /* endian-swap SA's */
+#if 0
+         |  SAFE_PE_DMACFG_ESPACKET    /* swap the packet data */
+#endif
+         ;
+       WRITE_REG(sc, SAFE_PE_DMACFG, v);
+
+#ifdef __BIG_ENDIAN
+       /* tell the safenet that we are 4321 and not 1234 */
+       WRITE_REG(sc, SAFE_ENDIAN, 0xe4e41b1b);
+#endif
+
+       if (sc->sc_chiprev == SAFE_REV(1,0)) {
+               /*
+                * Avoid large PCI DMA transfers.  Rev 1.0 has a bug where
+                * "target mode transfers" done while the chip is DMA'ing
+                * >1020 bytes cause the hardware to lockup.  To avoid this
+                * we reduce the max PCI transfer size and use small source
+                * particle descriptors (<= 256 bytes).
+                */
+               WRITE_REG(sc, SAFE_DMA_CFG, 256);
+               device_printf(sc->sc_dev,
+                       "Reduce max DMA size to %u words for rev %u.%u WAR\n",
+                       (unsigned) ((READ_REG(sc, SAFE_DMA_CFG)>>2) & 0xff),
+                       (unsigned) SAFE_REV_MAJ(sc->sc_chiprev),
+                       (unsigned) SAFE_REV_MIN(sc->sc_chiprev));
+               sc->sc_max_dsize = 256;
+       } else {
+               sc->sc_max_dsize = SAFE_MAX_DSIZE;
+       }
+
+       /* NB: operands+results are overlaid */
+       WRITE_REG(sc, SAFE_PE_PDRBASE, sc->sc_ringalloc.dma_paddr);
+       WRITE_REG(sc, SAFE_PE_RDRBASE, sc->sc_ringalloc.dma_paddr);
+       /*
+        * Configure ring entry size and number of items in the ring.
+        */
+       KASSERT((sizeof(struct safe_ringentry) % sizeof(u_int32_t)) == 0,
+               ("PE ring entry not 32-bit aligned!"));
+       dwords = sizeof(struct safe_ringentry) / sizeof(u_int32_t);
+       WRITE_REG(sc, SAFE_PE_RINGCFG,
+               (dwords << SAFE_PE_RINGCFG_OFFSET_S) | SAFE_MAX_NQUEUE);
+       WRITE_REG(sc, SAFE_PE_RINGPOLL, 0);     /* disable polling */
+
+       WRITE_REG(sc, SAFE_PE_GRNGBASE, sc->sc_spalloc.dma_paddr);
+       WRITE_REG(sc, SAFE_PE_SRNGBASE, sc->sc_dpalloc.dma_paddr);
+       WRITE_REG(sc, SAFE_PE_PARTSIZE,
+               (SAFE_TOTAL_DPART<<16) | SAFE_TOTAL_SPART);
+       /*
+        * NB: destination particles are fixed size.  We use
+        *     an mbuf cluster and require all results go to
+        *     clusters or smaller.
+        */
+       WRITE_REG(sc, SAFE_PE_PARTCFG, sc->sc_max_dsize);
+
+       /* it's now safe to enable PE mode, do it */
+       WRITE_REG(sc, SAFE_PE_DMACFG, v | SAFE_PE_DMACFG_PEMODE);
+
+       /*
+        * Configure hardware to use level-triggered interrupts and
+        * to interrupt after each descriptor is processed.
+        */
+       WRITE_REG(sc, SAFE_HI_CFG, SAFE_HI_CFG_LEVEL);
+       WRITE_REG(sc, SAFE_HI_CLR, 0xffffffff);
+       WRITE_REG(sc, SAFE_HI_DESC_CNT, 1);
+       WRITE_REG(sc, SAFE_HI_MASK, SAFE_INT_PE_DDONE | SAFE_INT_PE_ERROR);
+}
+
+
+/*
+ * Clean up after a chip crash.
+ * It is assumed that the caller in splimp()
+ */
+static void
+safe_cleanchip(struct safe_softc *sc)
+{
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (sc->sc_nqchip != 0) {
+               struct safe_ringentry *re = sc->sc_back;
+
+               while (re != sc->sc_front) {
+                       if (re->re_desc.d_csr != 0)
+                               safe_free_entry(sc, re);
+                       if (++re == sc->sc_ringtop)
+                               re = sc->sc_ring;
+               }
+               sc->sc_back = re;
+               sc->sc_nqchip = 0;
+       }
+}
+
+/*
+ * free a safe_q
+ * It is assumed that the caller is within splimp().
+ */
+static int
+safe_free_entry(struct safe_softc *sc, struct safe_ringentry *re)
+{
+       struct cryptop *crp;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       /*
+        * Free header MCR
+        */
+       if ((re->re_dst_skb != NULL) && (re->re_src_skb != re->re_dst_skb))
+#ifdef NOTYET
+               m_freem(re->re_dst_m);
+#else
+               printk("%s,%d: SKB not supported\n", __FILE__, __LINE__);
+#endif
+
+       crp = (struct cryptop *)re->re_crp;
+       
+       re->re_desc.d_csr = 0;
+       
+       crp->crp_etype = EFAULT;
+       crypto_done(crp);
+       return(0);
+}
+
+/*
+ * Routine to reset the chip and clean up.
+ * It is assumed that the caller is in splimp()
+ */
+static void
+safe_totalreset(struct safe_softc *sc)
+{
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       safe_reset_board(sc);
+       safe_init_board(sc);
+       safe_cleanchip(sc);
+}
+
+/*
+ * Is the operand suitable aligned for direct DMA.  Each
+ * segment must be aligned on a 32-bit boundary and all
+ * but the last segment must be a multiple of 4 bytes.
+ */
+static int
+safe_dmamap_aligned(struct safe_softc *sc, const struct safe_operand *op)
+{
+       int i;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       for (i = 0; i < op->nsegs; i++) {
+               if (op->segs[i].ds_addr & 3)
+                       return (0);
+               if (i != (op->nsegs - 1) && (op->segs[i].ds_len & 3))
+                       return (0);
+       }
+       return (1);
+}
+
+/*
+ * Is the operand suitable for direct DMA as the destination
+ * of an operation.  The hardware requires that each ``particle''
+ * but the last in an operation result have the same size.  We
+ * fix that size at SAFE_MAX_DSIZE bytes.  This routine returns
+ * 0 if some segment is not a multiple of of this size, 1 if all
+ * segments are exactly this size, or 2 if segments are at worst
+ * a multple of this size.
+ */
+static int
+safe_dmamap_uniform(struct safe_softc *sc, const struct safe_operand *op)
+{
+       int result = 1;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (op->nsegs > 0) {
+               int i;
+
+               for (i = 0; i < op->nsegs-1; i++) {
+                       if (op->segs[i].ds_len % sc->sc_max_dsize)
+                               return (0);
+                       if (op->segs[i].ds_len != sc->sc_max_dsize)
+                               result = 2;
+               }
+       }
+       return (result);
+}
+
+static int
+safe_kprocess(device_t dev, struct cryptkop *krp, int hint)
+{
+       struct safe_softc *sc = device_get_softc(dev);
+       struct safe_pkq *q;
+       unsigned long flags;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (sc == NULL) {
+               krp->krp_status = EINVAL;
+               goto err;
+       }
+
+       if (krp->krp_op != CRK_MOD_EXP) {
+               krp->krp_status = EOPNOTSUPP;
+               goto err;
+       }
+
+       q = (struct safe_pkq *) kmalloc(sizeof(*q), GFP_KERNEL);
+       if (q == NULL) {
+               krp->krp_status = ENOMEM;
+               goto err;
+       }
+       memset(q, 0, sizeof(*q));
+       q->pkq_krp = krp;
+       INIT_LIST_HEAD(&q->pkq_list);
+
+       spin_lock_irqsave(&sc->sc_pkmtx, flags);
+       list_add_tail(&q->pkq_list, &sc->sc_pkq);
+       safe_kfeed(sc);
+       spin_unlock_irqrestore(&sc->sc_pkmtx, flags);
+       return (0);
+
+err:
+       crypto_kdone(krp);
+       return (0);
+}
+
+#define        SAFE_CRK_PARAM_BASE     0
+#define        SAFE_CRK_PARAM_EXP      1
+#define        SAFE_CRK_PARAM_MOD      2
+
+static int
+safe_kstart(struct safe_softc *sc)
+{
+       struct cryptkop *krp = sc->sc_pkq_cur->pkq_krp;
+       int exp_bits, mod_bits, base_bits;
+       u_int32_t op, a_off, b_off, c_off, d_off;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (krp->krp_iparams < 3 || krp->krp_oparams != 1) {
+               krp->krp_status = EINVAL;
+               return (1);
+       }
+
+       base_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_BASE]);
+       if (base_bits > 2048)
+               goto too_big;
+       if (base_bits <= 0)             /* 5. base not zero */
+               goto too_small;
+
+       exp_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_EXP]);
+       if (exp_bits > 2048)
+               goto too_big;
+       if (exp_bits <= 0)              /* 1. exponent word length > 0 */
+               goto too_small;         /* 4. exponent not zero */
+
+       mod_bits = safe_ksigbits(sc, &krp->krp_param[SAFE_CRK_PARAM_MOD]);
+       if (mod_bits > 2048)
+               goto too_big;
+       if (mod_bits <= 32)             /* 2. modulus word length > 1 */
+               goto too_small;         /* 8. MSW of modulus != zero */
+       if (mod_bits < exp_bits)        /* 3 modulus len >= exponent len */
+               goto too_small;
+       if ((krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p[0] & 1) == 0)
+               goto bad_domain;        /* 6. modulus is odd */
+       if (mod_bits > krp->krp_param[krp->krp_iparams].crp_nbits)
+               goto too_small;         /* make sure result will fit */
+
+       /* 7. modulus > base */
+       if (mod_bits < base_bits)
+               goto too_small;
+       if (mod_bits == base_bits) {
+               u_int8_t *basep, *modp;
+               int i;
+
+               basep = krp->krp_param[SAFE_CRK_PARAM_BASE].crp_p +
+                   ((base_bits + 7) / 8) - 1;
+               modp = krp->krp_param[SAFE_CRK_PARAM_MOD].crp_p +
+                   ((mod_bits + 7) / 8) - 1;
+               
+               for (i = 0; i < (mod_bits + 7) / 8; i++, basep--, modp--) {
+                       if (*modp < *basep)
+                               goto too_small;
+                       if (*modp > *basep)
+                               break;
+               }
+       }
+
+       /* And on the 9th step, he rested. */
+
+       WRITE_REG(sc, SAFE_PK_A_LEN, (exp_bits + 31) / 32);
+       WRITE_REG(sc, SAFE_PK_B_LEN, (mod_bits + 31) / 32);
+       if (mod_bits > 1024) {
+               op = SAFE_PK_FUNC_EXP4;
+               a_off = 0x000;
+               b_off = 0x100;
+               c_off = 0x200;
+               d_off = 0x300;
+       } else {
+               op = SAFE_PK_FUNC_EXP16;
+               a_off = 0x000;
+               b_off = 0x080;
+               c_off = 0x100;
+               d_off = 0x180;
+       }
+       sc->sc_pk_reslen = b_off - a_off;
+       sc->sc_pk_resoff = d_off;
+
+       /* A is exponent, B is modulus, C is base, D is result */
+       safe_kload_reg(sc, a_off, b_off - a_off,
+           &krp->krp_param[SAFE_CRK_PARAM_EXP]);
+       WRITE_REG(sc, SAFE_PK_A_ADDR, a_off >> 2);
+       safe_kload_reg(sc, b_off, b_off - a_off,
+           &krp->krp_param[SAFE_CRK_PARAM_MOD]);
+       WRITE_REG(sc, SAFE_PK_B_ADDR, b_off >> 2);
+       safe_kload_reg(sc, c_off, b_off - a_off,
+           &krp->krp_param[SAFE_CRK_PARAM_BASE]);
+       WRITE_REG(sc, SAFE_PK_C_ADDR, c_off >> 2);
+       WRITE_REG(sc, SAFE_PK_D_ADDR, d_off >> 2);
+
+       WRITE_REG(sc, SAFE_PK_FUNC, op | SAFE_PK_FUNC_RUN);
+
+       return (0);
+
+too_big:
+       krp->krp_status = E2BIG;
+       return (1);
+too_small:
+       krp->krp_status = ERANGE;
+       return (1);
+bad_domain:
+       krp->krp_status = EDOM;
+       return (1);
+}
+
+static int
+safe_ksigbits(struct safe_softc *sc, struct crparam *cr)
+{
+       u_int plen = (cr->crp_nbits + 7) / 8;
+       int i, sig = plen * 8;
+       u_int8_t c, *p = cr->crp_p;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       for (i = plen - 1; i >= 0; i--) {
+               c = p[i];
+               if (c != 0) {
+                       while ((c & 0x80) == 0) {
+                               sig--;
+                               c <<= 1;
+                       }
+                       break;
+               }
+               sig -= 8;
+       }
+       return (sig);
+}
+
+static void
+safe_kfeed(struct safe_softc *sc)
+{
+       struct safe_pkq *q, *tmp;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (list_empty(&sc->sc_pkq) && sc->sc_pkq_cur == NULL)
+               return;
+       if (sc->sc_pkq_cur != NULL)
+               return;
+       list_for_each_entry_safe(q, tmp, &sc->sc_pkq, pkq_list) {
+               sc->sc_pkq_cur = q;
+               list_del(&q->pkq_list);
+               if (safe_kstart(sc) != 0) {
+                       crypto_kdone(q->pkq_krp);
+                       kfree(q);
+                       sc->sc_pkq_cur = NULL;
+               } else {
+                       /* op started, start polling */
+                       mod_timer(&sc->sc_pkto, jiffies + 1);
+                       break;
+               }
+       }
+}
+
+static void
+safe_kpoll(unsigned long arg)
+{
+       struct safe_softc *sc = NULL;
+       struct safe_pkq *q;
+       struct crparam *res;
+       int i;
+       u_int32_t buf[64];
+       unsigned long flags;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (arg >= SAFE_MAX_CHIPS)
+               return;
+       sc = safe_chip_idx[arg];
+       if (!sc) {
+               DPRINTF(("%s() - bad callback\n", __FUNCTION__));
+               return;
+       }
+
+       spin_lock_irqsave(&sc->sc_pkmtx, flags);
+       if (sc->sc_pkq_cur == NULL)
+               goto out;
+       if (READ_REG(sc, SAFE_PK_FUNC) & SAFE_PK_FUNC_RUN) {
+               /* still running, check back later */
+               mod_timer(&sc->sc_pkto, jiffies + 1);
+               goto out;
+       }
+
+       q = sc->sc_pkq_cur;
+       res = &q->pkq_krp->krp_param[q->pkq_krp->krp_iparams];
+       bzero(buf, sizeof(buf));
+       bzero(res->crp_p, (res->crp_nbits + 7) / 8);
+       for (i = 0; i < sc->sc_pk_reslen >> 2; i++)
+               buf[i] = le32_to_cpu(READ_REG(sc, SAFE_PK_RAM_START +
+                   sc->sc_pk_resoff + (i << 2)));
+       bcopy(buf, res->crp_p, (res->crp_nbits + 7) / 8);
+       /*
+        * reduce the bits that need copying if possible
+        */
+       res->crp_nbits = min(res->crp_nbits,sc->sc_pk_reslen * 8);
+       res->crp_nbits = safe_ksigbits(sc, res);
+
+       for (i = SAFE_PK_RAM_START; i < SAFE_PK_RAM_END; i += 4)
+               WRITE_REG(sc, i, 0);
+
+       crypto_kdone(q->pkq_krp);
+       kfree(q);
+       sc->sc_pkq_cur = NULL;
+
+       safe_kfeed(sc);
+out:
+       spin_unlock_irqrestore(&sc->sc_pkmtx, flags);
+}
+
+static void
+safe_kload_reg(struct safe_softc *sc, u_int32_t off, u_int32_t len,
+    struct crparam *n)
+{
+       u_int32_t buf[64], i;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       bzero(buf, sizeof(buf));
+       bcopy(n->crp_p, buf, (n->crp_nbits + 7) / 8);
+
+       for (i = 0; i < len >> 2; i++)
+               WRITE_REG(sc, SAFE_PK_RAM_START + off + (i << 2),
+                   cpu_to_le32(buf[i]));
+}
+
+#ifdef SAFE_DEBUG
+static void
+safe_dump_dmastatus(struct safe_softc *sc, const char *tag)
+{
+       printf("%s: ENDIAN 0x%x SRC 0x%x DST 0x%x STAT 0x%x\n"
+               , tag
+               , READ_REG(sc, SAFE_DMA_ENDIAN)
+               , READ_REG(sc, SAFE_DMA_SRCADDR)
+               , READ_REG(sc, SAFE_DMA_DSTADDR)
+               , READ_REG(sc, SAFE_DMA_STAT)
+       );
+}
+
+static void
+safe_dump_intrstate(struct safe_softc *sc, const char *tag)
+{
+       printf("%s: HI_CFG 0x%x HI_MASK 0x%x HI_DESC_CNT 0x%x HU_STAT 0x%x HM_STAT 0x%x\n"
+               , tag
+               , READ_REG(sc, SAFE_HI_CFG)
+               , READ_REG(sc, SAFE_HI_MASK)
+               , READ_REG(sc, SAFE_HI_DESC_CNT)
+               , READ_REG(sc, SAFE_HU_STAT)
+               , READ_REG(sc, SAFE_HM_STAT)
+       );
+}
+
+static void
+safe_dump_ringstate(struct safe_softc *sc, const char *tag)
+{
+       u_int32_t estat = READ_REG(sc, SAFE_PE_ERNGSTAT);
+
+       /* NB: assume caller has lock on ring */
+       printf("%s: ERNGSTAT %x (next %u) back %lu front %lu\n",
+               tag,
+               estat, (estat >> SAFE_PE_ERNGSTAT_NEXT_S),
+               (unsigned long)(sc->sc_back - sc->sc_ring),
+               (unsigned long)(sc->sc_front - sc->sc_ring));
+}
+
+static void
+safe_dump_request(struct safe_softc *sc, const char* tag, struct safe_ringentry *re)
+{
+       int ix, nsegs;
+
+       ix = re - sc->sc_ring;
+       printf("%s: %p (%u): csr %x src %x dst %x sa %x len %x\n"
+               , tag
+               , re, ix
+               , re->re_desc.d_csr
+               , re->re_desc.d_src
+               , re->re_desc.d_dst
+               , re->re_desc.d_sa
+               , re->re_desc.d_len
+       );
+       if (re->re_src.nsegs > 1) {
+               ix = (re->re_desc.d_src - sc->sc_spalloc.dma_paddr) /
+                       sizeof(struct safe_pdesc);
+               for (nsegs = re->re_src.nsegs; nsegs; nsegs--) {
+                       printf(" spd[%u] %p: %p size %u flags %x"
+                               , ix, &sc->sc_spring[ix]
+                               , (caddr_t)(uintptr_t) sc->sc_spring[ix].pd_addr
+                               , sc->sc_spring[ix].pd_size
+                               , sc->sc_spring[ix].pd_flags
+                       );
+                       if (sc->sc_spring[ix].pd_size == 0)
+                               printf(" (zero!)");
+                       printf("\n");
+                       if (++ix == SAFE_TOTAL_SPART)
+                               ix = 0;
+               }
+       }
+       if (re->re_dst.nsegs > 1) {
+               ix = (re->re_desc.d_dst - sc->sc_dpalloc.dma_paddr) /
+                       sizeof(struct safe_pdesc);
+               for (nsegs = re->re_dst.nsegs; nsegs; nsegs--) {
+                       printf(" dpd[%u] %p: %p flags %x\n"
+                               , ix, &sc->sc_dpring[ix]
+                               , (caddr_t)(uintptr_t) sc->sc_dpring[ix].pd_addr
+                               , sc->sc_dpring[ix].pd_flags
+                       );
+                       if (++ix == SAFE_TOTAL_DPART)
+                               ix = 0;
+               }
+       }
+       printf("sa: cmd0 %08x cmd1 %08x staterec %x\n",
+               re->re_sa.sa_cmd0, re->re_sa.sa_cmd1, re->re_sa.sa_staterec);
+       printf("sa: key %x %x %x %x %x %x %x %x\n"
+               , re->re_sa.sa_key[0]
+               , re->re_sa.sa_key[1]
+               , re->re_sa.sa_key[2]
+               , re->re_sa.sa_key[3]
+               , re->re_sa.sa_key[4]
+               , re->re_sa.sa_key[5]
+               , re->re_sa.sa_key[6]
+               , re->re_sa.sa_key[7]
+       );
+       printf("sa: indigest %x %x %x %x %x\n"
+               , re->re_sa.sa_indigest[0]
+               , re->re_sa.sa_indigest[1]
+               , re->re_sa.sa_indigest[2]
+               , re->re_sa.sa_indigest[3]
+               , re->re_sa.sa_indigest[4]
+       );
+       printf("sa: outdigest %x %x %x %x %x\n"
+               , re->re_sa.sa_outdigest[0]
+               , re->re_sa.sa_outdigest[1]
+               , re->re_sa.sa_outdigest[2]
+               , re->re_sa.sa_outdigest[3]
+               , re->re_sa.sa_outdigest[4]
+       );
+       printf("sr: iv %x %x %x %x\n"
+               , re->re_sastate.sa_saved_iv[0]
+               , re->re_sastate.sa_saved_iv[1]
+               , re->re_sastate.sa_saved_iv[2]
+               , re->re_sastate.sa_saved_iv[3]
+       );
+       printf("sr: hashbc %u indigest %x %x %x %x %x\n"
+               , re->re_sastate.sa_saved_hashbc
+               , re->re_sastate.sa_saved_indigest[0]
+               , re->re_sastate.sa_saved_indigest[1]
+               , re->re_sastate.sa_saved_indigest[2]
+               , re->re_sastate.sa_saved_indigest[3]
+               , re->re_sastate.sa_saved_indigest[4]
+       );
+}
+
+static void
+safe_dump_ring(struct safe_softc *sc, const char *tag)
+{
+       unsigned long flags;
+
+       spin_lock_irqsave(&sc->sc_ringmtx, flags);
+       printf("\nSafeNet Ring State:\n");
+       safe_dump_intrstate(sc, tag);
+       safe_dump_dmastatus(sc, tag);
+       safe_dump_ringstate(sc, tag);
+       if (sc->sc_nqchip) {
+               struct safe_ringentry *re = sc->sc_back;
+               do {
+                       safe_dump_request(sc, tag, re);
+                       if (++re == sc->sc_ringtop)
+                               re = sc->sc_ring;
+               } while (re != sc->sc_front);
+       }
+       spin_unlock_irqrestore(&sc->sc_ringmtx, flags);
+}
+#endif /* SAFE_DEBUG */
+
+
+static int safe_probe(struct pci_dev *dev, const struct pci_device_id *ent)
+{
+       struct safe_softc *sc = NULL;
+       u32 mem_start, mem_len, cmd;
+       int i, rc, devinfo;
+       dma_addr_t raddr;
+       static int num_chips = 0;
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       if (pci_enable_device(dev) < 0)
+               return(-ENODEV);
+
+       if (!dev->irq) {
+               printk("safe: found device with no IRQ assigned. check BIOS settings!");
+               pci_disable_device(dev);
+               return(-ENODEV);
+       }
+
+       if (pci_set_mwi(dev)) {
+               printk("safe: pci_set_mwi failed!");
+               return(-ENODEV);
+       }
+
+       sc = (struct safe_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+       if (!sc)
+               return(-ENOMEM);
+       memset(sc, 0, sizeof(*sc));
+
+       softc_device_init(sc, "safe", num_chips, safe_methods);
+
+       sc->sc_irq = -1;
+       sc->sc_cid = -1;
+       sc->sc_pcidev = dev;
+       if (num_chips < SAFE_MAX_CHIPS) {
+               safe_chip_idx[device_get_unit(sc->sc_dev)] = sc;
+               num_chips++;
+       }
+
+       INIT_LIST_HEAD(&sc->sc_pkq);
+       spin_lock_init(&sc->sc_pkmtx);
+
+       pci_set_drvdata(sc->sc_pcidev, sc);
+
+       /* we read its hardware registers as memory */
+       mem_start = pci_resource_start(sc->sc_pcidev, 0);
+       mem_len   = pci_resource_len(sc->sc_pcidev, 0);
+
+       sc->sc_base_addr = (ocf_iomem_t) ioremap(mem_start, mem_len);
+       if (!sc->sc_base_addr) {
+               device_printf(sc->sc_dev, "failed to ioremap 0x%x-0x%x\n",
+                               mem_start, mem_start + mem_len - 1);
+               goto out;
+       }
+
+       /* fix up the bus size */
+       if (pci_set_dma_mask(sc->sc_pcidev, DMA_32BIT_MASK)) {
+               device_printf(sc->sc_dev, "No usable DMA configuration, aborting.\n");
+               goto out;
+       }
+       if (pci_set_consistent_dma_mask(sc->sc_pcidev, DMA_32BIT_MASK)) {
+               device_printf(sc->sc_dev, "No usable consistent DMA configuration, aborting.\n");
+               goto out;
+       }
+
+       pci_set_master(sc->sc_pcidev);
+
+       pci_read_config_dword(sc->sc_pcidev, PCI_COMMAND, &cmd);
+
+       if (!(cmd & PCI_COMMAND_MEMORY)) {
+               device_printf(sc->sc_dev, "failed to enable memory mapping\n");
+               goto out;
+       }
+
+       if (!(cmd & PCI_COMMAND_MASTER)) {
+               device_printf(sc->sc_dev, "failed to enable bus mastering\n");
+               goto out;
+       }
+
+       rc = request_irq(dev->irq, safe_intr, IRQF_SHARED, "safe", sc);
+       if (rc) {
+               device_printf(sc->sc_dev, "failed to hook irq %d\n", sc->sc_irq);
+               goto out;
+       }
+       sc->sc_irq = dev->irq;
+
+       sc->sc_chiprev = READ_REG(sc, SAFE_DEVINFO) &
+                       (SAFE_DEVINFO_REV_MAJ | SAFE_DEVINFO_REV_MIN);
+
+       /*
+        * Allocate packet engine descriptors.
+        */
+       sc->sc_ringalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+                       SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+                       &sc->sc_ringalloc.dma_paddr);
+       if (!sc->sc_ringalloc.dma_vaddr) {
+               device_printf(sc->sc_dev, "cannot allocate PE descriptor ring\n");
+               goto out;
+       }
+
+       /*
+        * Hookup the static portion of all our data structures.
+        */
+       sc->sc_ring = (struct safe_ringentry *) sc->sc_ringalloc.dma_vaddr;
+       sc->sc_ringtop = sc->sc_ring + SAFE_MAX_NQUEUE;
+       sc->sc_front = sc->sc_ring;
+       sc->sc_back = sc->sc_ring;
+       raddr = sc->sc_ringalloc.dma_paddr;
+       bzero(sc->sc_ring, SAFE_MAX_NQUEUE * sizeof(struct safe_ringentry));
+       for (i = 0; i < SAFE_MAX_NQUEUE; i++) {
+               struct safe_ringentry *re = &sc->sc_ring[i];
+
+               re->re_desc.d_sa = raddr +
+                       offsetof(struct safe_ringentry, re_sa);
+               re->re_sa.sa_staterec = raddr +
+                       offsetof(struct safe_ringentry, re_sastate);
+
+               raddr += sizeof (struct safe_ringentry);
+       }
+       spin_lock_init(&sc->sc_ringmtx);
+
+       /*
+        * Allocate scatter and gather particle descriptors.
+        */
+       sc->sc_spalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+                       SAFE_TOTAL_SPART * sizeof (struct safe_pdesc),
+                       &sc->sc_spalloc.dma_paddr);
+       if (!sc->sc_spalloc.dma_vaddr) {
+               device_printf(sc->sc_dev, "cannot allocate source particle descriptor ring\n");
+               goto out;
+       }
+       sc->sc_spring = (struct safe_pdesc *) sc->sc_spalloc.dma_vaddr;
+       sc->sc_springtop = sc->sc_spring + SAFE_TOTAL_SPART;
+       sc->sc_spfree = sc->sc_spring;
+       bzero(sc->sc_spring, SAFE_TOTAL_SPART * sizeof(struct safe_pdesc));
+
+       sc->sc_dpalloc.dma_vaddr = pci_alloc_consistent(sc->sc_pcidev,
+                       SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+                       &sc->sc_dpalloc.dma_paddr);
+       if (!sc->sc_dpalloc.dma_vaddr) {
+               device_printf(sc->sc_dev, "cannot allocate destination particle descriptor ring\n");
+               goto out;
+       }
+       sc->sc_dpring = (struct safe_pdesc *) sc->sc_dpalloc.dma_vaddr;
+       sc->sc_dpringtop = sc->sc_dpring + SAFE_TOTAL_DPART;
+       sc->sc_dpfree = sc->sc_dpring;
+       bzero(sc->sc_dpring, SAFE_TOTAL_DPART * sizeof(struct safe_pdesc));
+
+       sc->sc_cid = crypto_get_driverid(softc_get_device(sc), CRYPTOCAP_F_HARDWARE);
+       if (sc->sc_cid < 0) {
+               device_printf(sc->sc_dev, "could not get crypto driver id\n");
+               goto out;
+       }
+
+       printf("%s:", device_get_nameunit(sc->sc_dev));
+
+       devinfo = READ_REG(sc, SAFE_DEVINFO);
+       if (devinfo & SAFE_DEVINFO_RNG) {
+               sc->sc_flags |= SAFE_FLAGS_RNG;
+               printf(" rng");
+       }
+       if (devinfo & SAFE_DEVINFO_PKEY) {
+               printf(" key");
+               sc->sc_flags |= SAFE_FLAGS_KEY;
+               crypto_kregister(sc->sc_cid, CRK_MOD_EXP, 0);
+#if 0
+               crypto_kregister(sc->sc_cid, CRK_MOD_EXP_CRT, 0);
+#endif
+               init_timer(&sc->sc_pkto);
+               sc->sc_pkto.function = safe_kpoll;
+               sc->sc_pkto.data = (unsigned long) device_get_unit(sc->sc_dev);
+       }
+       if (devinfo & SAFE_DEVINFO_DES) {
+               printf(" des/3des");
+               crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+       }
+       if (devinfo & SAFE_DEVINFO_AES) {
+               printf(" aes");
+               crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+       }
+       if (devinfo & SAFE_DEVINFO_MD5) {
+               printf(" md5");
+               crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+       }
+       if (devinfo & SAFE_DEVINFO_SHA1) {
+               printf(" sha1");
+               crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+       }
+       printf(" null");
+       crypto_register(sc->sc_cid, CRYPTO_NULL_CBC, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_NULL_HMAC, 0, 0);
+       /* XXX other supported algorithms */
+       printf("\n");
+
+       safe_reset_board(sc);           /* reset h/w */
+       safe_init_board(sc);            /* init h/w */
+
+#if defined(CONFIG_OCF_RANDOMHARVEST) && !defined(SAFE_NO_RNG)
+       if (sc->sc_flags & SAFE_FLAGS_RNG) {
+               safe_rng_init(sc);
+               crypto_rregister(sc->sc_cid, safe_read_random, sc);
+       }
+#endif /* SAFE_NO_RNG */
+
+       return (0);
+
+out:
+       if (sc->sc_cid >= 0)
+               crypto_unregister_all(sc->sc_cid);
+       if (sc->sc_irq != -1)
+               free_irq(sc->sc_irq, sc);
+       if (sc->sc_ringalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+                               sc->sc_ringalloc.dma_vaddr, sc->sc_ringalloc.dma_paddr);
+       if (sc->sc_spalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+                               sc->sc_spalloc.dma_vaddr, sc->sc_spalloc.dma_paddr);
+       if (sc->sc_dpalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+                               sc->sc_dpalloc.dma_vaddr, sc->sc_dpalloc.dma_paddr);
+       kfree(sc);
+       return(-ENODEV);
+}
+
+static void safe_remove(struct pci_dev *dev)
+{
+       struct safe_softc *sc = pci_get_drvdata(dev);
+
+       DPRINTF(("%s()\n", __FUNCTION__));
+
+       /* XXX wait/abort active ops */
+
+       WRITE_REG(sc, SAFE_HI_MASK, 0);         /* disable interrupts */
+
+       del_timer_sync(&sc->sc_pkto);
+
+       crypto_unregister_all(sc->sc_cid);
+
+       safe_cleanchip(sc);
+
+       if (sc->sc_irq != -1)
+               free_irq(sc->sc_irq, sc);
+       if (sc->sc_ringalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_MAX_NQUEUE * sizeof (struct safe_ringentry),
+                               sc->sc_ringalloc.dma_vaddr, sc->sc_ringalloc.dma_paddr);
+       if (sc->sc_spalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+                               sc->sc_spalloc.dma_vaddr, sc->sc_spalloc.dma_paddr);
+       if (sc->sc_dpalloc.dma_vaddr)
+               pci_free_consistent(sc->sc_pcidev,
+                               SAFE_TOTAL_DPART * sizeof (struct safe_pdesc),
+                               sc->sc_dpalloc.dma_vaddr, sc->sc_dpalloc.dma_paddr);
+       sc->sc_irq = -1;
+       sc->sc_ringalloc.dma_vaddr = NULL;
+       sc->sc_spalloc.dma_vaddr = NULL;
+       sc->sc_dpalloc.dma_vaddr = NULL;
+}
+
+static struct pci_device_id safe_pci_tbl[] = {
+       { PCI_VENDOR_SAFENET, PCI_PRODUCT_SAFEXCEL,
+         PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+       { },
+};
+MODULE_DEVICE_TABLE(pci, safe_pci_tbl);
+
+static struct pci_driver safe_driver = {
+       .name         = "safe",
+       .id_table     = safe_pci_tbl,
+       .probe        = safe_probe,
+       .remove       = safe_remove,
+       /* add PM stuff here one day */
+};
+
+static int __init safe_init (void)
+{
+       struct safe_softc *sc = NULL;
+       int rc;
+
+       DPRINTF(("%s(%p)\n", __FUNCTION__, safe_init));
+
+       rc = pci_register_driver(&safe_driver);
+       pci_register_driver_compat(&safe_driver, rc);
+
+       return rc;
+}
+
+static void __exit safe_exit (void)
+{
+       pci_unregister_driver(&safe_driver);
+}
+
+module_init(safe_init);
+module_exit(safe_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF driver for safenet PCI crypto devices");
--- /dev/null
+++ b/crypto/ocf/safe/sha1.c
@@ -0,0 +1,279 @@
+/*     $KAME: sha1.c,v 1.5 2000/11/08 06:13:08 itojun Exp $    */
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*
+ * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
+ * based on: http://csrc.nist.gov/fips/fip180-1.txt
+ * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/crypto/sha1.c,v 1.9 2003/06/10 21:36:57 obrien Exp $");
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/time.h>
+#include <sys/systm.h>
+
+#include <crypto/sha1.h>
+#endif
+
+/* sanity check */
+#if BYTE_ORDER != BIG_ENDIAN
+# if BYTE_ORDER != LITTLE_ENDIAN
+#  define unsupported 1
+# endif
+#endif
+
+#ifndef unsupported
+
+/* constant table */
+static u_int32_t _K[] = { 0x5a827999, 0x6ed9eba1, 0x8f1bbcdc, 0xca62c1d6 };
+#define        K(t)    _K[(t) / 20]
+
+#define        F0(b, c, d)     (((b) & (c)) | ((~(b)) & (d)))
+#define        F1(b, c, d)     (((b) ^ (c)) ^ (d))
+#define        F2(b, c, d)     (((b) & (c)) | ((b) & (d)) | ((c) & (d)))
+#define        F3(b, c, d)     (((b) ^ (c)) ^ (d))
+
+#define        S(n, x)         (((x) << (n)) | ((x) >> (32 - n)))
+
+#undef H
+#define        H(n)    (ctxt->h.b32[(n)])
+#define        COUNT   (ctxt->count)
+#define        BCOUNT  (ctxt->c.b64[0] / 8)
+#define        W(n)    (ctxt->m.b32[(n)])
+
+#define        PUTBYTE(x)      { \
+       ctxt->m.b8[(COUNT % 64)] = (x);         \
+       COUNT++;                                \
+       COUNT %= 64;                            \
+       ctxt->c.b64[0] += 8;                    \
+       if (COUNT % 64 == 0)                    \
+               sha1_step(ctxt);                \
+     }
+
+#define        PUTPAD(x)       { \
+       ctxt->m.b8[(COUNT % 64)] = (x);         \
+       COUNT++;                                \
+       COUNT %= 64;                            \
+       if (COUNT % 64 == 0)                    \
+               sha1_step(ctxt);                \
+     }
+
+static void sha1_step(struct sha1_ctxt *);
+
+static void
+sha1_step(ctxt)
+       struct sha1_ctxt *ctxt;
+{
+       u_int32_t       a, b, c, d, e;
+       size_t t, s;
+       u_int32_t       tmp;
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+       struct sha1_ctxt tctxt;
+       bcopy(&ctxt->m.b8[0], &tctxt.m.b8[0], 64);
+       ctxt->m.b8[0] = tctxt.m.b8[3]; ctxt->m.b8[1] = tctxt.m.b8[2];
+       ctxt->m.b8[2] = tctxt.m.b8[1]; ctxt->m.b8[3] = tctxt.m.b8[0];
+       ctxt->m.b8[4] = tctxt.m.b8[7]; ctxt->m.b8[5] = tctxt.m.b8[6];
+       ctxt->m.b8[6] = tctxt.m.b8[5]; ctxt->m.b8[7] = tctxt.m.b8[4];
+       ctxt->m.b8[8] = tctxt.m.b8[11]; ctxt->m.b8[9] = tctxt.m.b8[10];
+       ctxt->m.b8[10] = tctxt.m.b8[9]; ctxt->m.b8[11] = tctxt.m.b8[8];
+       ctxt->m.b8[12] = tctxt.m.b8[15]; ctxt->m.b8[13] = tctxt.m.b8[14];
+       ctxt->m.b8[14] = tctxt.m.b8[13]; ctxt->m.b8[15] = tctxt.m.b8[12];
+       ctxt->m.b8[16] = tctxt.m.b8[19]; ctxt->m.b8[17] = tctxt.m.b8[18];
+       ctxt->m.b8[18] = tctxt.m.b8[17]; ctxt->m.b8[19] = tctxt.m.b8[16];
+       ctxt->m.b8[20] = tctxt.m.b8[23]; ctxt->m.b8[21] = tctxt.m.b8[22];
+       ctxt->m.b8[22] = tctxt.m.b8[21]; ctxt->m.b8[23] = tctxt.m.b8[20];
+       ctxt->m.b8[24] = tctxt.m.b8[27]; ctxt->m.b8[25] = tctxt.m.b8[26];
+       ctxt->m.b8[26] = tctxt.m.b8[25]; ctxt->m.b8[27] = tctxt.m.b8[24];
+       ctxt->m.b8[28] = tctxt.m.b8[31]; ctxt->m.b8[29] = tctxt.m.b8[30];
+       ctxt->m.b8[30] = tctxt.m.b8[29]; ctxt->m.b8[31] = tctxt.m.b8[28];
+       ctxt->m.b8[32] = tctxt.m.b8[35]; ctxt->m.b8[33] = tctxt.m.b8[34];
+       ctxt->m.b8[34] = tctxt.m.b8[33]; ctxt->m.b8[35] = tctxt.m.b8[32];
+       ctxt->m.b8[36] = tctxt.m.b8[39]; ctxt->m.b8[37] = tctxt.m.b8[38];
+       ctxt->m.b8[38] = tctxt.m.b8[37]; ctxt->m.b8[39] = tctxt.m.b8[36];
+       ctxt->m.b8[40] = tctxt.m.b8[43]; ctxt->m.b8[41] = tctxt.m.b8[42];
+       ctxt->m.b8[42] = tctxt.m.b8[41]; ctxt->m.b8[43] = tctxt.m.b8[40];
+       ctxt->m.b8[44] = tctxt.m.b8[47]; ctxt->m.b8[45] = tctxt.m.b8[46];
+       ctxt->m.b8[46] = tctxt.m.b8[45]; ctxt->m.b8[47] = tctxt.m.b8[44];
+       ctxt->m.b8[48] = tctxt.m.b8[51]; ctxt->m.b8[49] = tctxt.m.b8[50];
+       ctxt->m.b8[50] = tctxt.m.b8[49]; ctxt->m.b8[51] = tctxt.m.b8[48];
+       ctxt->m.b8[52] = tctxt.m.b8[55]; ctxt->m.b8[53] = tctxt.m.b8[54];
+       ctxt->m.b8[54] = tctxt.m.b8[53]; ctxt->m.b8[55] = tctxt.m.b8[52];
+       ctxt->m.b8[56] = tctxt.m.b8[59]; ctxt->m.b8[57] = tctxt.m.b8[58];
+       ctxt->m.b8[58] = tctxt.m.b8[57]; ctxt->m.b8[59] = tctxt.m.b8[56];
+       ctxt->m.b8[60] = tctxt.m.b8[63]; ctxt->m.b8[61] = tctxt.m.b8[62];
+       ctxt->m.b8[62] = tctxt.m.b8[61]; ctxt->m.b8[63] = tctxt.m.b8[60];
+#endif
+
+       a = H(0); b = H(1); c = H(2); d = H(3); e = H(4);
+
+       for (t = 0; t < 20; t++) {
+               s = t & 0x0f;
+               if (t >= 16) {
+                       W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+               }
+               tmp = S(5, a) + F0(b, c, d) + e + W(s) + K(t);
+               e = d; d = c; c = S(30, b); b = a; a = tmp;
+       }
+       for (t = 20; t < 40; t++) {
+               s = t & 0x0f;
+               W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+               tmp = S(5, a) + F1(b, c, d) + e + W(s) + K(t);
+               e = d; d = c; c = S(30, b); b = a; a = tmp;
+       }
+       for (t = 40; t < 60; t++) {
+               s = t & 0x0f;
+               W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+               tmp = S(5, a) + F2(b, c, d) + e + W(s) + K(t);
+               e = d; d = c; c = S(30, b); b = a; a = tmp;
+       }
+       for (t = 60; t < 80; t++) {
+               s = t & 0x0f;
+               W(s) = S(1, W((s+13) & 0x0f) ^ W((s+8) & 0x0f) ^ W((s+2) & 0x0f) ^ W(s));
+               tmp = S(5, a) + F3(b, c, d) + e + W(s) + K(t);
+               e = d; d = c; c = S(30, b); b = a; a = tmp;
+       }
+
+       H(0) = H(0) + a;
+       H(1) = H(1) + b;
+       H(2) = H(2) + c;
+       H(3) = H(3) + d;
+       H(4) = H(4) + e;
+
+       bzero(&ctxt->m.b8[0], 64);
+}
+
+/*------------------------------------------------------------*/
+
+void
+sha1_init(ctxt)
+       struct sha1_ctxt *ctxt;
+{
+       bzero(ctxt, sizeof(struct sha1_ctxt));
+       H(0) = 0x67452301;
+       H(1) = 0xefcdab89;
+       H(2) = 0x98badcfe;
+       H(3) = 0x10325476;
+       H(4) = 0xc3d2e1f0;
+}
+
+void
+sha1_pad(ctxt)
+       struct sha1_ctxt *ctxt;
+{
+       size_t padlen;          /*pad length in bytes*/
+       size_t padstart;
+
+       PUTPAD(0x80);
+
+       padstart = COUNT % 64;
+       padlen = 64 - padstart;
+       if (padlen < 8) {
+               bzero(&ctxt->m.b8[padstart], padlen);
+               COUNT += padlen;
+               COUNT %= 64;
+               sha1_step(ctxt);
+               padstart = COUNT % 64;  /* should be 0 */
+               padlen = 64 - padstart; /* should be 64 */
+       }
+       bzero(&ctxt->m.b8[padstart], padlen - 8);
+       COUNT += (padlen - 8);
+       COUNT %= 64;
+#if BYTE_ORDER == BIG_ENDIAN
+       PUTPAD(ctxt->c.b8[0]); PUTPAD(ctxt->c.b8[1]);
+       PUTPAD(ctxt->c.b8[2]); PUTPAD(ctxt->c.b8[3]);
+       PUTPAD(ctxt->c.b8[4]); PUTPAD(ctxt->c.b8[5]);
+       PUTPAD(ctxt->c.b8[6]); PUTPAD(ctxt->c.b8[7]);
+#else
+       PUTPAD(ctxt->c.b8[7]); PUTPAD(ctxt->c.b8[6]);
+       PUTPAD(ctxt->c.b8[5]); PUTPAD(ctxt->c.b8[4]);
+       PUTPAD(ctxt->c.b8[3]); PUTPAD(ctxt->c.b8[2]);
+       PUTPAD(ctxt->c.b8[1]); PUTPAD(ctxt->c.b8[0]);
+#endif
+}
+
+void
+sha1_loop(ctxt, input, len)
+       struct sha1_ctxt *ctxt;
+       const u_int8_t *input;
+       size_t len;
+{
+       size_t gaplen;
+       size_t gapstart;
+       size_t off;
+       size_t copysiz;
+
+       off = 0;
+
+       while (off < len) {
+               gapstart = COUNT % 64;
+               gaplen = 64 - gapstart;
+
+               copysiz = (gaplen < len - off) ? gaplen : len - off;
+               bcopy(&input[off], &ctxt->m.b8[gapstart], copysiz);
+               COUNT += copysiz;
+               COUNT %= 64;
+               ctxt->c.b64[0] += copysiz * 8;
+               if (COUNT % 64 == 0)
+                       sha1_step(ctxt);
+               off += copysiz;
+       }
+}
+
+void
+sha1_result(ctxt, digest0)
+       struct sha1_ctxt *ctxt;
+       caddr_t digest0;
+{
+       u_int8_t *digest;
+
+       digest = (u_int8_t *)digest0;
+       sha1_pad(ctxt);
+#if BYTE_ORDER == BIG_ENDIAN
+       bcopy(&ctxt->h.b8[0], digest, 20);
+#else
+       digest[0] = ctxt->h.b8[3]; digest[1] = ctxt->h.b8[2];
+       digest[2] = ctxt->h.b8[1]; digest[3] = ctxt->h.b8[0];
+       digest[4] = ctxt->h.b8[7]; digest[5] = ctxt->h.b8[6];
+       digest[6] = ctxt->h.b8[5]; digest[7] = ctxt->h.b8[4];
+       digest[8] = ctxt->h.b8[11]; digest[9] = ctxt->h.b8[10];
+       digest[10] = ctxt->h.b8[9]; digest[11] = ctxt->h.b8[8];
+       digest[12] = ctxt->h.b8[15]; digest[13] = ctxt->h.b8[14];
+       digest[14] = ctxt->h.b8[13]; digest[15] = ctxt->h.b8[12];
+       digest[16] = ctxt->h.b8[19]; digest[17] = ctxt->h.b8[18];
+       digest[18] = ctxt->h.b8[17]; digest[19] = ctxt->h.b8[16];
+#endif
+}
+
+#endif /*unsupported*/
--- /dev/null
+++ b/crypto/ocf/safe/sha1.h
@@ -0,0 +1,72 @@
+/*     $FreeBSD: src/sys/crypto/sha1.h,v 1.8 2002/03/20 05:13:50 alfred Exp $  */
+/*     $KAME: sha1.h,v 1.5 2000/03/27 04:36:23 sumikawa Exp $  */
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the project nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/*
+ * FIPS pub 180-1: Secure Hash Algorithm (SHA-1)
+ * based on: http://csrc.nist.gov/fips/fip180-1.txt
+ * implemented by Jun-ichiro itojun Itoh <itojun@itojun.org>
+ */
+
+#ifndef _NETINET6_SHA1_H_
+#define _NETINET6_SHA1_H_
+
+struct sha1_ctxt {
+       union {
+               u_int8_t        b8[20];
+               u_int32_t       b32[5];
+       } h;
+       union {
+               u_int8_t        b8[8];
+               u_int64_t       b64[1];
+       } c;
+       union {
+               u_int8_t        b8[64];
+               u_int32_t       b32[16];
+       } m;
+       u_int8_t        count;
+};
+
+#ifdef __KERNEL__
+extern void sha1_init(struct sha1_ctxt *);
+extern void sha1_pad(struct sha1_ctxt *);
+extern void sha1_loop(struct sha1_ctxt *, const u_int8_t *, size_t);
+extern void sha1_result(struct sha1_ctxt *, caddr_t);
+
+/* compatibilty with other SHA1 source codes */
+typedef struct sha1_ctxt SHA1_CTX;
+#define SHA1Init(x)            sha1_init((x))
+#define SHA1Update(x, y, z)    sha1_loop((x), (y), (z))
+#define SHA1Final(x, y)                sha1_result((y), (x))
+#endif /* __KERNEL__ */
+
+#define        SHA1_RESULTLEN  (160/8)
+
+#endif /*_NETINET6_SHA1_H_*/
--- /dev/null
+++ b/crypto/ocf/safe/safereg.h
@@ -0,0 +1,421 @@
+/*-
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/safe/safereg.h,v 1.1 2003/07/21 21:46:07 sam Exp $
+ */
+#ifndef _SAFE_SAFEREG_H_
+#define        _SAFE_SAFEREG_H_
+
+/*
+ * Register definitions for SafeNet SafeXcel-1141 crypto device.
+ * Definitions from revision 1.3 (Nov 6 2002) of the User's Manual.
+ */
+
+#define BS_BAR                 0x10    /* DMA base address register */
+#define        BS_TRDY_TIMEOUT         0x40    /* TRDY timeout */
+#define        BS_RETRY_TIMEOUT        0x41    /* DMA retry timeout */
+
+#define        PCI_VENDOR_SAFENET      0x16ae          /* SafeNet, Inc. */
+
+/* SafeNet */
+#define        PCI_PRODUCT_SAFEXCEL    0x1141          /* 1141 */
+
+#define        SAFE_PE_CSR             0x0000  /* Packet Enginge Ctrl/Status */
+#define        SAFE_PE_SRC             0x0004  /* Packet Engine Source */
+#define        SAFE_PE_DST             0x0008  /* Packet Engine Destination */
+#define        SAFE_PE_SA              0x000c  /* Packet Engine SA */
+#define        SAFE_PE_LEN             0x0010  /* Packet Engine Length */
+#define        SAFE_PE_DMACFG          0x0040  /* Packet Engine DMA Configuration */
+#define        SAFE_PE_DMASTAT         0x0044  /* Packet Engine DMA Status */
+#define        SAFE_PE_PDRBASE         0x0048  /* Packet Engine Descriptor Ring Base */
+#define        SAFE_PE_RDRBASE         0x004c  /* Packet Engine Result Ring Base */
+#define        SAFE_PE_RINGCFG         0x0050  /* Packet Engine Ring Configuration */
+#define        SAFE_PE_RINGPOLL        0x0054  /* Packet Engine Ring Poll */
+#define        SAFE_PE_IRNGSTAT        0x0058  /* Packet Engine Internal Ring Status */
+#define        SAFE_PE_ERNGSTAT        0x005c  /* Packet Engine External Ring Status */
+#define        SAFE_PE_IOTHRESH        0x0060  /* Packet Engine I/O Threshold */
+#define        SAFE_PE_GRNGBASE        0x0064  /* Packet Engine Gather Ring Base */
+#define        SAFE_PE_SRNGBASE        0x0068  /* Packet Engine Scatter Ring Base */
+#define        SAFE_PE_PARTSIZE        0x006c  /* Packet Engine Particlar Ring Size */
+#define        SAFE_PE_PARTCFG         0x0070  /* Packet Engine Particle Ring Config */
+#define        SAFE_CRYPTO_CTRL        0x0080  /* Crypto Control */
+#define        SAFE_DEVID              0x0084  /* Device ID */
+#define        SAFE_DEVINFO            0x0088  /* Device Info */
+#define        SAFE_HU_STAT            0x00a0  /* Host Unmasked Status */
+#define        SAFE_HM_STAT            0x00a4  /* Host Masked Status (read-only) */
+#define        SAFE_HI_CLR             0x00a4  /* Host Clear Interrupt (write-only) */
+#define        SAFE_HI_MASK            0x00a8  /* Host Mask Control */
+#define        SAFE_HI_CFG             0x00ac  /* Interrupt Configuration */
+#define        SAFE_HI_RD_DESCR        0x00b4  /* Force Descriptor Read */
+#define        SAFE_HI_DESC_CNT        0x00b8  /* Host Descriptor Done Count */
+#define        SAFE_DMA_ENDIAN         0x00c0  /* Master Endian Status */
+#define        SAFE_DMA_SRCADDR        0x00c4  /* DMA Source Address Status */
+#define        SAFE_DMA_DSTADDR        0x00c8  /* DMA Destination Address Status */
+#define        SAFE_DMA_STAT           0x00cc  /* DMA Current Status */
+#define        SAFE_DMA_CFG            0x00d4  /* DMA Configuration/Status */
+#define        SAFE_ENDIAN             0x00e0  /* Endian Configuration */
+#define        SAFE_PK_A_ADDR          0x0800  /* Public Key A Address */
+#define        SAFE_PK_B_ADDR          0x0804  /* Public Key B Address */
+#define        SAFE_PK_C_ADDR          0x0808  /* Public Key C Address */
+#define        SAFE_PK_D_ADDR          0x080c  /* Public Key D Address */
+#define        SAFE_PK_A_LEN           0x0810  /* Public Key A Length */
+#define        SAFE_PK_B_LEN           0x0814  /* Public Key B Length */
+#define        SAFE_PK_SHIFT           0x0818  /* Public Key Shift */
+#define        SAFE_PK_FUNC            0x081c  /* Public Key Function */
+#define SAFE_PK_RAM_START      0x1000  /* Public Key RAM start address */
+#define SAFE_PK_RAM_END                0x1fff  /* Public Key RAM end address */
+
+#define        SAFE_RNG_OUT            0x0100  /* RNG Output */
+#define        SAFE_RNG_STAT           0x0104  /* RNG Status */
+#define        SAFE_RNG_CTRL           0x0108  /* RNG Control */
+#define        SAFE_RNG_A              0x010c  /* RNG A */
+#define        SAFE_RNG_B              0x0110  /* RNG B */
+#define        SAFE_RNG_X_LO           0x0114  /* RNG X [31:0] */
+#define        SAFE_RNG_X_MID          0x0118  /* RNG X [63:32] */
+#define        SAFE_RNG_X_HI           0x011c  /* RNG X [80:64] */
+#define        SAFE_RNG_X_CNTR         0x0120  /* RNG Counter */
+#define        SAFE_RNG_ALM_CNT        0x0124  /* RNG Alarm Count */
+#define        SAFE_RNG_CNFG           0x0128  /* RNG Configuration */
+#define        SAFE_RNG_LFSR1_LO       0x012c  /* RNG LFSR1 [31:0] */
+#define        SAFE_RNG_LFSR1_HI       0x0130  /* RNG LFSR1 [47:32] */
+#define        SAFE_RNG_LFSR2_LO       0x0134  /* RNG LFSR1 [31:0] */
+#define        SAFE_RNG_LFSR2_HI       0x0138  /* RNG LFSR1 [47:32] */
+
+#define        SAFE_PE_CSR_READY       0x00000001      /* ready for processing */
+#define        SAFE_PE_CSR_DONE        0x00000002      /* h/w completed processing */
+#define        SAFE_PE_CSR_LOADSA      0x00000004      /* load SA digests */
+#define        SAFE_PE_CSR_HASHFINAL   0x00000010      /* do hash pad & write result */
+#define        SAFE_PE_CSR_SABUSID     0x000000c0      /* bus id for SA */
+#define        SAFE_PE_CSR_SAPCI       0x00000040      /* PCI bus id for SA */
+#define        SAFE_PE_CSR_NXTHDR      0x0000ff00      /* next hdr value for IPsec */
+#define        SAFE_PE_CSR_FPAD        0x0000ff00      /* fixed pad for basic ops */
+#define        SAFE_PE_CSR_STATUS      0x00ff0000      /* operation result status */
+#define        SAFE_PE_CSR_AUTH_FAIL   0x00010000      /* ICV mismatch (inbound) */
+#define        SAFE_PE_CSR_PAD_FAIL    0x00020000      /* pad verify fail (inbound) */
+#define        SAFE_PE_CSR_SEQ_FAIL    0x00040000      /* sequence number (inbound) */
+#define        SAFE_PE_CSR_XERROR      0x00080000      /* extended error follows */
+#define        SAFE_PE_CSR_XECODE      0x00f00000      /* extended error code */
+#define        SAFE_PE_CSR_XECODE_S    20
+#define        SAFE_PE_CSR_XECODE_BADCMD       0       /* invalid command */
+#define        SAFE_PE_CSR_XECODE_BADALG       1       /* invalid algorithm */
+#define        SAFE_PE_CSR_XECODE_ALGDIS       2       /* algorithm disabled */
+#define        SAFE_PE_CSR_XECODE_ZEROLEN      3       /* zero packet length */
+#define        SAFE_PE_CSR_XECODE_DMAERR       4       /* bus DMA error */
+#define        SAFE_PE_CSR_XECODE_PIPEABORT    5       /* secondary bus DMA error */
+#define        SAFE_PE_CSR_XECODE_BADSPI       6       /* IPsec SPI mismatch */
+#define        SAFE_PE_CSR_XECODE_TIMEOUT      10      /* failsafe timeout */
+#define        SAFE_PE_CSR_PAD         0xff000000      /* ESP padding control/status */
+#define        SAFE_PE_CSR_PAD_MIN     0x00000000      /* minimum IPsec padding */
+#define        SAFE_PE_CSR_PAD_16      0x08000000      /* pad to 16-byte boundary */
+#define        SAFE_PE_CSR_PAD_32      0x10000000      /* pad to 32-byte boundary */
+#define        SAFE_PE_CSR_PAD_64      0x20000000      /* pad to 64-byte boundary */
+#define        SAFE_PE_CSR_PAD_128     0x40000000      /* pad to 128-byte boundary */
+#define        SAFE_PE_CSR_PAD_256     0x80000000      /* pad to 256-byte boundary */
+
+/*
+ * Check the CSR to see if the PE has returned ownership to
+ * the host.  Note that before processing a descriptor this
+ * must be done followed by a check of the SAFE_PE_LEN register
+ * status bits to avoid premature processing of a descriptor
+ * on its way back to the host.
+ */
+#define        SAFE_PE_CSR_IS_DONE(_csr) \
+    (((_csr) & (SAFE_PE_CSR_READY | SAFE_PE_CSR_DONE)) == SAFE_PE_CSR_DONE)
+
+#define        SAFE_PE_LEN_LENGTH      0x000fffff      /* total length (bytes) */
+#define        SAFE_PE_LEN_READY       0x00400000      /* ready for processing */
+#define        SAFE_PE_LEN_DONE        0x00800000      /* h/w completed processing */
+#define        SAFE_PE_LEN_BYPASS      0xff000000      /* bypass offset (bytes) */
+#define        SAFE_PE_LEN_BYPASS_S    24
+
+#define        SAFE_PE_LEN_IS_DONE(_len) \
+    (((_len) & (SAFE_PE_LEN_READY | SAFE_PE_LEN_DONE)) == SAFE_PE_LEN_DONE)
+
+/* NB: these apply to HU_STAT, HM_STAT, HI_CLR, and HI_MASK */
+#define        SAFE_INT_PE_CDONE       0x00000002      /* PE context done */
+#define        SAFE_INT_PE_DDONE       0x00000008      /* PE descriptor done */
+#define        SAFE_INT_PE_ERROR       0x00000010      /* PE error */
+#define        SAFE_INT_PE_ODONE       0x00000020      /* PE operation done */
+
+#define        SAFE_HI_CFG_PULSE       0x00000001      /* use pulse interrupt */
+#define        SAFE_HI_CFG_LEVEL       0x00000000      /* use level interrupt */
+#define        SAFE_HI_CFG_AUTOCLR     0x00000002      /* auto-clear pulse interrupt */
+
+#define        SAFE_ENDIAN_PASS        0x000000e4      /* straight pass-thru */
+#define        SAFE_ENDIAN_SWAB        0x0000001b      /* swap bytes in 32-bit word */
+
+#define        SAFE_PE_DMACFG_PERESET  0x00000001      /* reset packet engine */
+#define        SAFE_PE_DMACFG_PDRRESET 0x00000002      /* reset PDR counters/ptrs */
+#define        SAFE_PE_DMACFG_SGRESET  0x00000004      /* reset scatter/gather cache */
+#define        SAFE_PE_DMACFG_FSENA    0x00000008      /* enable failsafe reset */
+#define        SAFE_PE_DMACFG_PEMODE   0x00000100      /* packet engine mode */
+#define        SAFE_PE_DMACFG_SAPREC   0x00000200      /* SA precedes packet */
+#define        SAFE_PE_DMACFG_PKFOLL   0x00000400      /* packet follows descriptor */
+#define        SAFE_PE_DMACFG_GPRBID   0x00003000      /* gather particle ring busid */
+#define        SAFE_PE_DMACFG_GPRPCI   0x00001000      /* PCI gather particle ring */
+#define        SAFE_PE_DMACFG_SPRBID   0x0000c000      /* scatter part. ring busid */
+#define        SAFE_PE_DMACFG_SPRPCI   0x00004000      /* PCI scatter part. ring */
+#define        SAFE_PE_DMACFG_ESDESC   0x00010000      /* endian swap descriptors */
+#define        SAFE_PE_DMACFG_ESSA     0x00020000      /* endian swap SA data */
+#define        SAFE_PE_DMACFG_ESPACKET 0x00040000      /* endian swap packet data */
+#define        SAFE_PE_DMACFG_ESPDESC  0x00080000      /* endian swap particle desc. */
+#define        SAFE_PE_DMACFG_NOPDRUP  0x00100000      /* supp. PDR ownership update */
+#define        SAFE_PD_EDMACFG_PCIMODE 0x01000000      /* PCI target mode */
+
+#define        SAFE_PE_DMASTAT_PEIDONE 0x00000001      /* PE core input done */
+#define        SAFE_PE_DMASTAT_PEODONE 0x00000002      /* PE core output done */
+#define        SAFE_PE_DMASTAT_ENCDONE 0x00000004      /* encryption done */
+#define        SAFE_PE_DMASTAT_IHDONE  0x00000008      /* inner hash done */
+#define        SAFE_PE_DMASTAT_OHDONE  0x00000010      /* outer hash (HMAC) done */
+#define        SAFE_PE_DMASTAT_PADFLT  0x00000020      /* crypto pad fault */
+#define        SAFE_PE_DMASTAT_ICVFLT  0x00000040      /* ICV fault */
+#define        SAFE_PE_DMASTAT_SPIMIS  0x00000080      /* SPI mismatch */
+#define        SAFE_PE_DMASTAT_CRYPTO  0x00000100      /* crypto engine timeout */
+#define        SAFE_PE_DMASTAT_CQACT   0x00000200      /* command queue active */
+#define        SAFE_PE_DMASTAT_IRACT   0x00000400      /* input request active */
+#define        SAFE_PE_DMASTAT_ORACT   0x00000800      /* output request active */
+#define        SAFE_PE_DMASTAT_PEISIZE 0x003ff000      /* PE input size:32-bit words */
+#define        SAFE_PE_DMASTAT_PEOSIZE 0xffc00000      /* PE out. size:32-bit words */
+
+#define        SAFE_PE_RINGCFG_SIZE    0x000003ff      /* ring size (descriptors) */
+#define        SAFE_PE_RINGCFG_OFFSET  0xffff0000      /* offset btw desc's (dwords) */
+#define        SAFE_PE_RINGCFG_OFFSET_S        16
+
+#define        SAFE_PE_RINGPOLL_POLL   0x00000fff      /* polling frequency/divisor */
+#define        SAFE_PE_RINGPOLL_RETRY  0x03ff0000      /* polling frequency/divisor */
+#define        SAFE_PE_RINGPOLL_CONT   0x80000000      /* continuously poll */
+
+#define        SAFE_PE_IRNGSTAT_CQAVAIL 0x00000001     /* command queue available */
+
+#define        SAFE_PE_ERNGSTAT_NEXT   0x03ff0000      /* index of next packet desc. */
+#define        SAFE_PE_ERNGSTAT_NEXT_S 16
+
+#define        SAFE_PE_IOTHRESH_INPUT  0x000003ff      /* input threshold (dwords) */
+#define        SAFE_PE_IOTHRESH_OUTPUT 0x03ff0000      /* output threshold (dwords) */
+
+#define        SAFE_PE_PARTCFG_SIZE    0x0000ffff      /* scatter particle size */
+#define        SAFE_PE_PARTCFG_GBURST  0x00030000      /* gather particle burst */
+#define        SAFE_PE_PARTCFG_GBURST_2        0x00000000
+#define        SAFE_PE_PARTCFG_GBURST_4        0x00010000
+#define        SAFE_PE_PARTCFG_GBURST_8        0x00020000
+#define        SAFE_PE_PARTCFG_GBURST_16       0x00030000
+#define        SAFE_PE_PARTCFG_SBURST  0x000c0000      /* scatter particle burst */
+#define        SAFE_PE_PARTCFG_SBURST_2        0x00000000
+#define        SAFE_PE_PARTCFG_SBURST_4        0x00040000
+#define        SAFE_PE_PARTCFG_SBURST_8        0x00080000
+#define        SAFE_PE_PARTCFG_SBURST_16       0x000c0000
+
+#define        SAFE_PE_PARTSIZE_SCAT   0xffff0000      /* scatter particle ring size */
+#define        SAFE_PE_PARTSIZE_GATH   0x0000ffff      /* gather particle ring size */
+
+#define        SAFE_CRYPTO_CTRL_3DES   0x00000001      /* enable 3DES support */
+#define        SAFE_CRYPTO_CTRL_PKEY   0x00010000      /* enable public key support */
+#define        SAFE_CRYPTO_CTRL_RNG    0x00020000      /* enable RNG support */
+
+#define        SAFE_DEVINFO_REV_MIN    0x0000000f      /* minor rev for chip */
+#define        SAFE_DEVINFO_REV_MAJ    0x000000f0      /* major rev for chip */
+#define        SAFE_DEVINFO_REV_MAJ_S  4
+#define        SAFE_DEVINFO_DES        0x00000100      /* DES/3DES support present */
+#define        SAFE_DEVINFO_ARC4       0x00000200      /* ARC4 support present */
+#define        SAFE_DEVINFO_AES        0x00000400      /* AES support present */
+#define        SAFE_DEVINFO_MD5        0x00001000      /* MD5 support present */
+#define        SAFE_DEVINFO_SHA1       0x00002000      /* SHA-1 support present */
+#define        SAFE_DEVINFO_RIPEMD     0x00004000      /* RIPEMD support present */
+#define        SAFE_DEVINFO_DEFLATE    0x00010000      /* Deflate support present */
+#define        SAFE_DEVINFO_SARAM      0x00100000      /* on-chip SA RAM present */
+#define        SAFE_DEVINFO_EMIBUS     0x00200000      /* EMI bus present */
+#define        SAFE_DEVINFO_PKEY       0x00400000      /* public key support present */
+#define        SAFE_DEVINFO_RNG        0x00800000      /* RNG present */
+
+#define        SAFE_REV(_maj, _min)    (((_maj) << SAFE_DEVINFO_REV_MAJ_S) | (_min))
+#define        SAFE_REV_MAJ(_chiprev) \
+       (((_chiprev) & SAFE_DEVINFO_REV_MAJ) >> SAFE_DEVINFO_REV_MAJ_S)
+#define        SAFE_REV_MIN(_chiprev)  ((_chiprev) & SAFE_DEVINFO_REV_MIN)
+
+#define        SAFE_PK_FUNC_MULT       0x00000001      /* Multiply function */
+#define        SAFE_PK_FUNC_SQUARE     0x00000004      /* Square function */
+#define        SAFE_PK_FUNC_ADD        0x00000010      /* Add function */
+#define        SAFE_PK_FUNC_SUB        0x00000020      /* Subtract function */
+#define        SAFE_PK_FUNC_LSHIFT     0x00000040      /* Left-shift function */
+#define        SAFE_PK_FUNC_RSHIFT     0x00000080      /* Right-shift function */
+#define        SAFE_PK_FUNC_DIV        0x00000100      /* Divide function */
+#define        SAFE_PK_FUNC_CMP        0x00000400      /* Compare function */
+#define        SAFE_PK_FUNC_COPY       0x00000800      /* Copy function */
+#define        SAFE_PK_FUNC_EXP16      0x00002000      /* Exponentiate (4-bit ACT) */
+#define        SAFE_PK_FUNC_EXP4       0x00004000      /* Exponentiate (2-bit ACT) */
+#define        SAFE_PK_FUNC_RUN        0x00008000      /* start/status */
+
+#define        SAFE_RNG_STAT_BUSY      0x00000001      /* busy, data not valid */
+
+#define        SAFE_RNG_CTRL_PRE_LFSR  0x00000001      /* enable output pre-LFSR */
+#define        SAFE_RNG_CTRL_TST_MODE  0x00000002      /* enable test mode */
+#define        SAFE_RNG_CTRL_TST_RUN   0x00000004      /* start test state machine */
+#define        SAFE_RNG_CTRL_ENA_RING1 0x00000008      /* test entropy oscillator #1 */
+#define        SAFE_RNG_CTRL_ENA_RING2 0x00000010      /* test entropy oscillator #2 */
+#define        SAFE_RNG_CTRL_DIS_ALARM 0x00000020      /* disable RNG alarm reports */
+#define        SAFE_RNG_CTRL_TST_CLOCK 0x00000040      /* enable test clock */
+#define        SAFE_RNG_CTRL_SHORTEN   0x00000080      /* shorten state timers */
+#define        SAFE_RNG_CTRL_TST_ALARM 0x00000100      /* simulate alarm state */
+#define        SAFE_RNG_CTRL_RST_LFSR  0x00000200      /* reset LFSR */
+
+/*
+ * Packet engine descriptor.  Note that d_csr is a copy of the
+ * SAFE_PE_CSR register and all definitions apply, and d_len
+ * is a copy of the SAFE_PE_LEN register and all definitions apply.
+ * d_src and d_len may point directly to contiguous data or to a
+ * list of ``particle descriptors'' when using scatter/gather i/o.
+ */
+struct safe_desc {
+       u_int32_t       d_csr;                  /* per-packet control/status */
+       u_int32_t       d_src;                  /* source address */
+       u_int32_t       d_dst;                  /* destination address */
+       u_int32_t       d_sa;                   /* SA address */
+       u_int32_t       d_len;                  /* length, bypass, status */
+};
+
+/*
+ * Scatter/Gather particle descriptor.
+ *
+ * NB: scatter descriptors do not specify a size; this is fixed
+ *     by the setting of the SAFE_PE_PARTCFG register.
+ */
+struct safe_pdesc {
+       u_int32_t       pd_addr;                /* particle address */
+#ifdef __BIG_ENDIAN
+       u_int16_t       pd_flags;               /* control word */
+       u_int16_t       pd_size;                /* particle size (bytes) */
+#else
+       u_int16_t       pd_flags;               /* control word */
+       u_int16_t       pd_size;                /* particle size (bytes) */
+#endif
+};
+
+#define        SAFE_PD_READY   0x0001                  /* ready for processing */
+#define        SAFE_PD_DONE    0x0002                  /* h/w completed processing */
+
+/*
+ * Security Association (SA) Record (Rev 1).  One of these is
+ * required for each operation processed by the packet engine.
+ */
+struct safe_sarec {
+       u_int32_t       sa_cmd0;
+       u_int32_t       sa_cmd1;
+       u_int32_t       sa_resv0;
+       u_int32_t       sa_resv1;
+       u_int32_t       sa_key[8];              /* DES/3DES/AES key */
+       u_int32_t       sa_indigest[5];         /* inner digest */
+       u_int32_t       sa_outdigest[5];        /* outer digest */
+       u_int32_t       sa_spi;                 /* SPI */
+       u_int32_t       sa_seqnum;              /* sequence number */
+       u_int32_t       sa_seqmask[2];          /* sequence number mask */
+       u_int32_t       sa_resv2;
+       u_int32_t       sa_staterec;            /* address of state record */
+       u_int32_t       sa_resv3[2];
+       u_int32_t       sa_samgmt0;             /* SA management field 0 */
+       u_int32_t       sa_samgmt1;             /* SA management field 0 */
+};
+
+#define        SAFE_SA_CMD0_OP         0x00000007      /* operation code */
+#define        SAFE_SA_CMD0_OP_CRYPT   0x00000000      /* encrypt/decrypt (basic) */
+#define        SAFE_SA_CMD0_OP_BOTH    0x00000001      /* encrypt-hash/hash-decrypto */
+#define        SAFE_SA_CMD0_OP_HASH    0x00000003      /* hash (outbound-only) */
+#define        SAFE_SA_CMD0_OP_ESP     0x00000000      /* ESP in/out (proto) */
+#define        SAFE_SA_CMD0_OP_AH      0x00000001      /* AH in/out (proto) */
+#define        SAFE_SA_CMD0_INBOUND    0x00000008      /* inbound operation */
+#define        SAFE_SA_CMD0_OUTBOUND   0x00000000      /* outbound operation */
+#define        SAFE_SA_CMD0_GROUP      0x00000030      /* operation group */
+#define        SAFE_SA_CMD0_BASIC      0x00000000      /* basic operation */
+#define        SAFE_SA_CMD0_PROTO      0x00000010      /* protocol/packet operation */
+#define        SAFE_SA_CMD0_BUNDLE     0x00000020      /* bundled operation (resvd) */
+#define        SAFE_SA_CMD0_PAD        0x000000c0      /* crypto pad method */
+#define        SAFE_SA_CMD0_PAD_IPSEC  0x00000000      /* IPsec padding */
+#define        SAFE_SA_CMD0_PAD_PKCS7  0x00000040      /* PKCS#7 padding */
+#define        SAFE_SA_CMD0_PAD_CONS   0x00000080      /* constant padding */
+#define        SAFE_SA_CMD0_PAD_ZERO   0x000000c0      /* zero padding */
+#define        SAFE_SA_CMD0_CRYPT_ALG  0x00000f00      /* symmetric crypto algorithm */
+#define        SAFE_SA_CMD0_DES        0x00000000      /* DES crypto algorithm */
+#define        SAFE_SA_CMD0_3DES       0x00000100      /* 3DES crypto algorithm */
+#define        SAFE_SA_CMD0_AES        0x00000300      /* AES crypto algorithm */
+#define        SAFE_SA_CMD0_CRYPT_NULL 0x00000f00      /* null crypto algorithm */
+#define        SAFE_SA_CMD0_HASH_ALG   0x0000f000      /* hash algorithm */
+#define        SAFE_SA_CMD0_MD5        0x00000000      /* MD5 hash algorithm */
+#define        SAFE_SA_CMD0_SHA1       0x00001000      /* SHA-1 hash algorithm */
+#define        SAFE_SA_CMD0_HASH_NULL  0x0000f000      /* null hash algorithm */
+#define        SAFE_SA_CMD0_HDR_PROC   0x00080000      /* header processing */
+#define        SAFE_SA_CMD0_IBUSID     0x00300000      /* input bus id */
+#define        SAFE_SA_CMD0_IPCI       0x00100000      /* PCI input bus id */
+#define        SAFE_SA_CMD0_OBUSID     0x00c00000      /* output bus id */
+#define        SAFE_SA_CMD0_OPCI       0x00400000      /* PCI output bus id */
+#define        SAFE_SA_CMD0_IVLD       0x03000000      /* IV loading */
+#define        SAFE_SA_CMD0_IVLD_NONE  0x00000000      /* IV no load (reuse) */
+#define        SAFE_SA_CMD0_IVLD_IBUF  0x01000000      /* IV load from input buffer */
+#define        SAFE_SA_CMD0_IVLD_STATE 0x02000000      /* IV load from state */
+#define        SAFE_SA_CMD0_HSLD       0x0c000000      /* hash state loading */
+#define        SAFE_SA_CMD0_HSLD_SA    0x00000000      /* hash state load from SA */
+#define        SAFE_SA_CMD0_HSLD_STATE 0x08000000      /* hash state load from state */
+#define        SAFE_SA_CMD0_HSLD_NONE  0x0c000000      /* hash state no load */
+#define        SAFE_SA_CMD0_SAVEIV     0x10000000      /* save IV */
+#define        SAFE_SA_CMD0_SAVEHASH   0x20000000      /* save hash state */
+#define        SAFE_SA_CMD0_IGATHER    0x40000000      /* input gather */
+#define        SAFE_SA_CMD0_OSCATTER   0x80000000      /* output scatter */
+
+#define        SAFE_SA_CMD1_HDRCOPY    0x00000002      /* copy header to output */
+#define        SAFE_SA_CMD1_PAYCOPY    0x00000004      /* copy payload to output */
+#define        SAFE_SA_CMD1_PADCOPY    0x00000008      /* copy pad to output */
+#define        SAFE_SA_CMD1_IPV4       0x00000000      /* IPv4 protocol */
+#define        SAFE_SA_CMD1_IPV6       0x00000010      /* IPv6 protocol */
+#define        SAFE_SA_CMD1_MUTABLE    0x00000020      /* mutable bit processing */
+#define        SAFE_SA_CMD1_SRBUSID    0x000000c0      /* state record bus id */
+#define        SAFE_SA_CMD1_SRPCI      0x00000040      /* state record from PCI */
+#define        SAFE_SA_CMD1_CRMODE     0x00000300      /* crypto mode */
+#define        SAFE_SA_CMD1_ECB        0x00000000      /* ECB crypto mode */
+#define        SAFE_SA_CMD1_CBC        0x00000100      /* CBC crypto mode */
+#define        SAFE_SA_CMD1_OFB        0x00000200      /* OFB crypto mode */
+#define        SAFE_SA_CMD1_CFB        0x00000300      /* CFB crypto mode */
+#define        SAFE_SA_CMD1_CRFEEDBACK 0x00000c00      /* crypto feedback mode */
+#define        SAFE_SA_CMD1_64BIT      0x00000000      /* 64-bit crypto feedback */
+#define        SAFE_SA_CMD1_8BIT       0x00000400      /* 8-bit crypto feedback */
+#define        SAFE_SA_CMD1_1BIT       0x00000800      /* 1-bit crypto feedback */
+#define        SAFE_SA_CMD1_128BIT     0x00000c00      /* 128-bit crypto feedback */
+#define        SAFE_SA_CMD1_OPTIONS    0x00001000      /* HMAC/options mutable bit */
+#define        SAFE_SA_CMD1_HMAC       SAFE_SA_CMD1_OPTIONS
+#define        SAFE_SA_CMD1_SAREV1     0x00008000      /* SA Revision 1 */
+#define        SAFE_SA_CMD1_OFFSET     0x00ff0000      /* hash/crypto offset(dwords) */
+#define        SAFE_SA_CMD1_OFFSET_S   16
+#define        SAFE_SA_CMD1_AESKEYLEN  0x0f000000      /* AES key length */
+#define        SAFE_SA_CMD1_AES128     0x02000000      /* 128-bit AES key */
+#define        SAFE_SA_CMD1_AES192     0x03000000      /* 192-bit AES key */
+#define        SAFE_SA_CMD1_AES256     0x04000000      /* 256-bit AES key */
+
+/* 
+ * Security Associate State Record (Rev 1).
+ */
+struct safe_sastate {
+       u_int32_t       sa_saved_iv[4];         /* saved IV (DES/3DES/AES) */
+       u_int32_t       sa_saved_hashbc;        /* saved hash byte count */
+       u_int32_t       sa_saved_indigest[5];   /* saved inner digest */
+};
+#endif /* _SAFE_SAFEREG_H_ */
--- /dev/null
+++ b/crypto/ocf/safe/safevar.h
@@ -0,0 +1,230 @@
+/*-
+ * The linux port of this code done by David McCullough
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com>
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2003 Sam Leffler, Errno Consulting
+ * Copyright (c) 2003 Global Technology Associates, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD: src/sys/dev/safe/safevar.h,v 1.2 2006/05/17 18:34:26 pjd Exp $
+ */
+#ifndef _SAFE_SAFEVAR_H_
+#define        _SAFE_SAFEVAR_H_
+
+/* Maximum queue length */
+#ifndef SAFE_MAX_NQUEUE
+#define SAFE_MAX_NQUEUE        60
+#endif
+
+#define        SAFE_MAX_PART           64      /* Maximum scatter/gather depth */
+#define        SAFE_DMA_BOUNDARY       0       /* No boundary for source DMA ops */
+#define        SAFE_MAX_DSIZE          2048 /* MCLBYTES Fixed scatter particle size */
+#define        SAFE_MAX_SSIZE          0x0ffff /* Maximum gather particle size */
+#define        SAFE_MAX_DMA            0xfffff /* Maximum PE operand size (20 bits) */
+/* total src+dst particle descriptors */
+#define        SAFE_TOTAL_DPART        (SAFE_MAX_NQUEUE * SAFE_MAX_PART)
+#define        SAFE_TOTAL_SPART        (SAFE_MAX_NQUEUE * SAFE_MAX_PART)
+
+#define        SAFE_RNG_MAXBUFSIZ      128     /* 32-bit words */
+
+#define        SAFE_CARD(sid)          (((sid) & 0xf0000000) >> 28)
+#define        SAFE_SESSION(sid)       ( (sid) & 0x0fffffff)
+#define        SAFE_SID(crd, sesn)     (((crd) << 28) | ((sesn) & 0x0fffffff))
+
+#define SAFE_DEF_RTY           0xff    /* PCI Retry Timeout */
+#define SAFE_DEF_TOUT          0xff    /* PCI TRDY Timeout */
+#define SAFE_DEF_CACHELINE     0x01    /* Cache Line setting */
+
+#ifdef __KERNEL__
+/*
+ * State associated with the allocation of each chunk
+ * of memory setup for DMA.
+ */
+struct safe_dma_alloc {
+       dma_addr_t              dma_paddr;
+       void                    *dma_vaddr;
+};
+
+/*
+ * Cryptographic operand state.  One of these exists for each
+ * source and destination operand passed in from the crypto
+ * subsystem.  When possible source and destination operands
+ * refer to the same memory.  More often they are distinct.
+ * We track the virtual address of each operand as well as
+ * where each is mapped for DMA.
+ */
+struct safe_operand {
+       union {
+               struct sk_buff *skb;
+               struct uio *io;
+       } u;
+       void                    *map;
+       int                             mapsize;        /* total number of bytes in segs */
+       struct {
+               dma_addr_t      ds_addr;
+               int                     ds_len;
+               int                     ds_tlen;
+       } segs[SAFE_MAX_PART];
+       int                             nsegs;
+};
+
+/*
+ * Packet engine ring entry and cryptographic operation state.
+ * The packet engine requires a ring of descriptors that contain
+ * pointers to various cryptographic state.  However the ring
+ * configuration register allows you to specify an arbitrary size
+ * for ring entries.  We use this feature to collect most of the
+ * state for each cryptographic request into one spot.  Other than
+ * ring entries only the ``particle descriptors'' (scatter/gather
+ * lists) and the actual operand data are kept separate.  The
+ * particle descriptors must also be organized in rings.  The
+ * operand data can be located aribtrarily (modulo alignment constraints).
+ *
+ * Note that the descriptor ring is mapped onto the PCI bus so
+ * the hardware can DMA data.  This means the entire ring must be
+ * contiguous.
+ */
+struct safe_ringentry {
+       struct safe_desc        re_desc;        /* command descriptor */
+       struct safe_sarec       re_sa;          /* SA record */
+       struct safe_sastate     re_sastate;     /* SA state record */
+
+       struct cryptop          *re_crp;        /* crypto operation */
+
+       struct safe_operand     re_src;         /* source operand */
+       struct safe_operand     re_dst;         /* destination operand */
+
+       int                     re_sesn;        /* crypto session ID */
+       int                     re_flags;
+#define        SAFE_QFLAGS_COPYOUTIV   0x1             /* copy back on completion */
+#define        SAFE_QFLAGS_COPYOUTICV  0x2             /* copy back on completion */
+};
+
+#define        re_src_skb      re_src.u.skb
+#define        re_src_io       re_src.u.io
+#define        re_src_map      re_src.map
+#define        re_src_nsegs    re_src.nsegs
+#define        re_src_segs     re_src.segs
+#define        re_src_mapsize  re_src.mapsize
+
+#define        re_dst_skb      re_dst.u.skb
+#define        re_dst_io       re_dst.u.io
+#define        re_dst_map      re_dst.map
+#define        re_dst_nsegs    re_dst.nsegs
+#define        re_dst_segs     re_dst.segs
+#define        re_dst_mapsize  re_dst.mapsize
+
+struct rndstate_test;
+
+struct safe_session {
+       u_int32_t       ses_used;
+       u_int32_t       ses_klen;               /* key length in bits */
+       u_int32_t       ses_key[8];             /* DES/3DES/AES key */
+       u_int32_t       ses_mlen;               /* hmac length in bytes */
+       u_int32_t       ses_hminner[5];         /* hmac inner state */
+       u_int32_t       ses_hmouter[5];         /* hmac outer state */
+       u_int32_t       ses_iv[4];              /* DES/3DES/AES iv */
+};
+
+struct safe_pkq {
+       struct list_head        pkq_list;
+       struct cryptkop         *pkq_krp;
+};
+
+struct safe_softc {
+       softc_device_decl       sc_dev;
+       u32                     sc_irq;
+
+       struct pci_dev          *sc_pcidev;
+       ocf_iomem_t             sc_base_addr;
+
+       u_int                   sc_chiprev;     /* major/minor chip revision */
+       int                     sc_flags;       /* device specific flags */
+#define        SAFE_FLAGS_KEY          0x01            /* has key accelerator */
+#define        SAFE_FLAGS_RNG          0x02            /* hardware rng */
+       int                     sc_suspended;
+       int                     sc_needwakeup;  /* notify crypto layer */
+       int32_t                 sc_cid;         /* crypto tag */
+
+       struct safe_dma_alloc   sc_ringalloc;   /* PE ring allocation state */
+       struct safe_ringentry   *sc_ring;       /* PE ring */
+       struct safe_ringentry   *sc_ringtop;    /* PE ring top */
+       struct safe_ringentry   *sc_front;      /* next free entry */
+       struct safe_ringentry   *sc_back;       /* next pending entry */
+       int                     sc_nqchip;      /* # passed to chip */
+       spinlock_t              sc_ringmtx;     /* PE ring lock */
+       struct safe_pdesc       *sc_spring;     /* src particle ring */
+       struct safe_pdesc       *sc_springtop;  /* src particle ring top */
+       struct safe_pdesc       *sc_spfree;     /* next free src particle */
+       struct safe_dma_alloc   sc_spalloc;     /* src particle ring state */
+       struct safe_pdesc       *sc_dpring;     /* dest particle ring */
+       struct safe_pdesc       *sc_dpringtop;  /* dest particle ring top */
+       struct safe_pdesc       *sc_dpfree;     /* next free dest particle */
+       struct safe_dma_alloc   sc_dpalloc;     /* dst particle ring state */
+       int                     sc_nsessions;   /* # of sessions */
+       struct safe_session     *sc_sessions;   /* sessions */
+
+       struct timer_list       sc_pkto;        /* PK polling */
+       spinlock_t              sc_pkmtx;       /* PK lock */
+       struct list_head        sc_pkq;         /* queue of PK requests */
+       struct safe_pkq         *sc_pkq_cur;    /* current processing request */
+       u_int32_t               sc_pk_reslen, sc_pk_resoff;
+
+       int                     sc_max_dsize;   /* maximum safe DMA size */
+};
+#endif /* __KERNEL__ */
+
+struct safe_stats {
+       u_int64_t st_ibytes;
+       u_int64_t st_obytes;
+       u_int32_t st_ipackets;
+       u_int32_t st_opackets;
+       u_int32_t st_invalid;           /* invalid argument */
+       u_int32_t st_badsession;        /* invalid session id */
+       u_int32_t st_badflags;          /* flags indicate !(mbuf | uio) */
+       u_int32_t st_nodesc;            /* op submitted w/o descriptors */
+       u_int32_t st_badalg;            /* unsupported algorithm */
+       u_int32_t st_ringfull;          /* PE descriptor ring full */
+       u_int32_t st_peoperr;           /* PE marked error */
+       u_int32_t st_dmaerr;            /* PE DMA error */
+       u_int32_t st_bypasstoobig;      /* bypass > 96 bytes */
+       u_int32_t st_skipmismatch;      /* enc part begins before auth part */
+       u_int32_t st_lenmismatch;       /* enc length different auth length */
+       u_int32_t st_coffmisaligned;    /* crypto offset not 32-bit aligned */
+       u_int32_t st_cofftoobig;        /* crypto offset > 255 words */
+       u_int32_t st_iovmisaligned;     /* iov op not aligned */
+       u_int32_t st_iovnotuniform;     /* iov op not suitable */
+       u_int32_t st_unaligned;         /* unaligned src caused copy */
+       u_int32_t st_notuniform;        /* non-uniform src caused copy */
+       u_int32_t st_nomap;             /* bus_dmamap_create failed */
+       u_int32_t st_noload;            /* bus_dmamap_load_* failed */
+       u_int32_t st_nombuf;            /* MGET* failed */
+       u_int32_t st_nomcl;             /* MCLGET* failed */
+       u_int32_t st_maxqchip;          /* max mcr1 ops out for processing */
+       u_int32_t st_rng;               /* RNG requests */
+       u_int32_t st_rngalarm;          /* RNG alarm requests */
+       u_int32_t st_noicvcopy;         /* ICV data copies suppressed */
+};
+#endif /* _SAFE_SAFEVAR_H_ */
--- /dev/null
+++ b/crypto/ocf/crypto.c
@@ -0,0 +1,1741 @@
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * Copyright (c) 2002-2006 Sam Leffler.  All rights reserved.
+ *
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#if 0
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.27 2007/03/21 03:42:51 sam Exp $");
+#endif
+
+/*
+ * Cryptographic Subsystem.
+ *
+ * This code is derived from the Openbsd Cryptographic Framework (OCF)
+ * that has the copyright shown below.  Very little of the original
+ * code remains.
+ */
+/*-
+ * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
+ *
+ * This code was written by Angelos D. Keromytis in Athens, Greece, in
+ * February 2000. Network Security Technologies Inc. (NSTI) kindly
+ * supported the development of this code.
+ *
+ * Copyright (c) 2000, 2001 Angelos D. Keromytis
+ *
+ * Permission to use, copy, and modify this software with or without fee
+ * is hereby granted, provided that this entire notice is included in
+ * all source code copies of any software which is or includes a copy or
+ * modification of this software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+ * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
+ * PURPOSE.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/crypto.c,v 1.16 2005/01/07 02:29:16 imp Exp $");
+ */
+
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <cryptodev.h>
+
+/*
+ * keep track of whether or not we have been initialised, a big
+ * issue if we are linked into the kernel and a driver gets started before
+ * us
+ */
+static int crypto_initted = 0;
+
+/*
+ * Crypto drivers register themselves by allocating a slot in the
+ * crypto_drivers table with crypto_get_driverid() and then registering
+ * each algorithm they support with crypto_register() and crypto_kregister().
+ */
+
+/*
+ * lock on driver table
+ * we track its state as spin_is_locked does not do anything on non-SMP boxes
+ */
+static spinlock_t      crypto_drivers_lock;
+static int                     crypto_drivers_locked;          /* for non-SMP boxes */
+
+#define        CRYPTO_DRIVER_LOCK() \
+                       ({ \
+                               spin_lock_irqsave(&crypto_drivers_lock, d_flags); \
+                               crypto_drivers_locked = 1; \
+                               dprintk("%s,%d: DRIVER_LOCK()\n", __FILE__, __LINE__); \
+                        })
+#define        CRYPTO_DRIVER_UNLOCK() \
+                       ({ \
+                               dprintk("%s,%d: DRIVER_UNLOCK()\n", __FILE__, __LINE__); \
+                               crypto_drivers_locked = 0; \
+                               spin_unlock_irqrestore(&crypto_drivers_lock, d_flags); \
+                        })
+#define        CRYPTO_DRIVER_ASSERT() \
+                       ({ \
+                               if (!crypto_drivers_locked) { \
+                                       dprintk("%s,%d: DRIVER_ASSERT!\n", __FILE__, __LINE__); \
+                               } \
+                        })
+
+/*
+ * Crypto device/driver capabilities structure.
+ *
+ * Synchronization:
+ * (d) - protected by CRYPTO_DRIVER_LOCK()
+ * (q) - protected by CRYPTO_Q_LOCK()
+ * Not tagged fields are read-only.
+ */
+struct cryptocap {
+       device_t        cc_dev;                 /* (d) device/driver */
+       u_int32_t       cc_sessions;            /* (d) # of sessions */
+       u_int32_t       cc_koperations;         /* (d) # os asym operations */
+       /*
+        * Largest possible operator length (in bits) for each type of
+        * encryption algorithm. XXX not used
+        */
+       u_int16_t       cc_max_op_len[CRYPTO_ALGORITHM_MAX + 1];
+       u_int8_t        cc_alg[CRYPTO_ALGORITHM_MAX + 1];
+       u_int8_t        cc_kalg[CRK_ALGORITHM_MAX + 1];
+
+       int             cc_flags;               /* (d) flags */
+#define CRYPTOCAP_F_CLEANUP    0x80000000      /* needs resource cleanup */
+       int             cc_qblocked;            /* (q) symmetric q blocked */
+       int             cc_kqblocked;           /* (q) asymmetric q blocked */
+};
+static struct cryptocap *crypto_drivers = NULL;
+static int crypto_drivers_num = 0;
+
+/*
+ * There are two queues for crypto requests; one for symmetric (e.g.
+ * cipher) operations and one for asymmetric (e.g. MOD)operations.
+ * A single mutex is used to lock access to both queues.  We could
+ * have one per-queue but having one simplifies handling of block/unblock
+ * operations.
+ */
+static int crp_sleep = 0;
+static LIST_HEAD(crp_q);               /* request queues */
+static LIST_HEAD(crp_kq);
+
+static spinlock_t crypto_q_lock;
+
+int crypto_all_qblocked = 0;  /* protect with Q_LOCK */
+module_param(crypto_all_qblocked, int, 0444);
+MODULE_PARM_DESC(crypto_all_qblocked, "Are all crypto queues blocked");
+
+int crypto_all_kqblocked = 0; /* protect with Q_LOCK */
+module_param(crypto_all_kqblocked, int, 0444);
+MODULE_PARM_DESC(crypto_all_kqblocked, "Are all asym crypto queues blocked");
+
+#define        CRYPTO_Q_LOCK() \
+                       ({ \
+                               spin_lock_irqsave(&crypto_q_lock, q_flags); \
+                               dprintk("%s,%d: Q_LOCK()\n", __FILE__, __LINE__); \
+                        })
+#define        CRYPTO_Q_UNLOCK() \
+                       ({ \
+                               dprintk("%s,%d: Q_UNLOCK()\n", __FILE__, __LINE__); \
+                               spin_unlock_irqrestore(&crypto_q_lock, q_flags); \
+                        })
+
+/*
+ * There are two queues for processing completed crypto requests; one
+ * for the symmetric and one for the asymmetric ops.  We only need one
+ * but have two to avoid type futzing (cryptop vs. cryptkop).  A single
+ * mutex is used to lock access to both queues.  Note that this lock
+ * must be separate from the lock on request queues to insure driver
+ * callbacks don't generate lock order reversals.
+ */
+static LIST_HEAD(crp_ret_q);           /* callback queues */
+static LIST_HEAD(crp_ret_kq);
+
+static spinlock_t crypto_ret_q_lock;
+#define        CRYPTO_RETQ_LOCK() \
+                       ({ \
+                               spin_lock_irqsave(&crypto_ret_q_lock, r_flags); \
+                               dprintk("%s,%d: RETQ_LOCK\n", __FILE__, __LINE__); \
+                        })
+#define        CRYPTO_RETQ_UNLOCK() \
+                       ({ \
+                               dprintk("%s,%d: RETQ_UNLOCK\n", __FILE__, __LINE__); \
+                               spin_unlock_irqrestore(&crypto_ret_q_lock, r_flags); \
+                        })
+#define        CRYPTO_RETQ_EMPTY()     (list_empty(&crp_ret_q) && list_empty(&crp_ret_kq))
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+static kmem_cache_t *cryptop_zone;
+static kmem_cache_t *cryptodesc_zone;
+#else
+static struct kmem_cache *cryptop_zone;
+static struct kmem_cache *cryptodesc_zone;
+#endif
+
+#define debug crypto_debug
+int crypto_debug = 0;
+module_param(crypto_debug, int, 0644);
+MODULE_PARM_DESC(crypto_debug, "Enable debug");
+EXPORT_SYMBOL(crypto_debug);
+
+/*
+ * Maximum number of outstanding crypto requests before we start
+ * failing requests.  We need this to prevent DOS when too many
+ * requests are arriving for us to keep up.  Otherwise we will
+ * run the system out of memory.  Since crypto is slow,  we are
+ * usually the bottleneck that needs to say, enough is enough.
+ *
+ * We cannot print errors when this condition occurs,  we are already too
+ * slow,  printing anything will just kill us
+ */
+
+static int crypto_q_cnt = 0;
+module_param(crypto_q_cnt, int, 0444);
+MODULE_PARM_DESC(crypto_q_cnt,
+               "Current number of outstanding crypto requests");
+
+static int crypto_q_max = 1000;
+module_param(crypto_q_max, int, 0644);
+MODULE_PARM_DESC(crypto_q_max,
+               "Maximum number of outstanding crypto requests");
+
+#define bootverbose crypto_verbose
+static int crypto_verbose = 0;
+module_param(crypto_verbose, int, 0644);
+MODULE_PARM_DESC(crypto_verbose,
+               "Enable verbose crypto startup");
+
+int    crypto_usercrypto = 1;  /* userland may do crypto reqs */
+module_param(crypto_usercrypto, int, 0644);
+MODULE_PARM_DESC(crypto_usercrypto,
+          "Enable/disable user-mode access to crypto support");
+
+int    crypto_userasymcrypto = 1;      /* userland may do asym crypto reqs */
+module_param(crypto_userasymcrypto, int, 0644);
+MODULE_PARM_DESC(crypto_userasymcrypto,
+          "Enable/disable user-mode access to asymmetric crypto support");
+
+int    crypto_devallowsoft = 0;        /* only use hardware crypto */
+module_param(crypto_devallowsoft, int, 0644);
+MODULE_PARM_DESC(crypto_devallowsoft,
+          "Enable/disable use of software crypto support");
+
+static pid_t   cryptoproc = (pid_t) -1;
+static struct  completion cryptoproc_exited;
+static DECLARE_WAIT_QUEUE_HEAD(cryptoproc_wait);
+static pid_t   cryptoretproc = (pid_t) -1;
+static struct  completion cryptoretproc_exited;
+static DECLARE_WAIT_QUEUE_HEAD(cryptoretproc_wait);
+
+static int crypto_proc(void *arg);
+static int crypto_ret_proc(void *arg);
+static int crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint);
+static int crypto_kinvoke(struct cryptkop *krp, int flags);
+static void crypto_exit(void);
+static  int crypto_init(void);
+
+static struct cryptostats cryptostats;
+
+static struct cryptocap *
+crypto_checkdriver(u_int32_t hid)
+{
+       if (crypto_drivers == NULL)
+               return NULL;
+       return (hid >= crypto_drivers_num ? NULL : &crypto_drivers[hid]);
+}
+
+/*
+ * Compare a driver's list of supported algorithms against another
+ * list; return non-zero if all algorithms are supported.
+ */
+static int
+driver_suitable(const struct cryptocap *cap, const struct cryptoini *cri)
+{
+       const struct cryptoini *cr;
+
+       /* See if all the algorithms are supported. */
+       for (cr = cri; cr; cr = cr->cri_next)
+               if (cap->cc_alg[cr->cri_alg] == 0)
+                       return 0;
+       return 1;
+}
+
+/*
+ * Select a driver for a new session that supports the specified
+ * algorithms and, optionally, is constrained according to the flags.
+ * The algorithm we use here is pretty stupid; just use the
+ * first driver that supports all the algorithms we need. If there
+ * are multiple drivers we choose the driver with the fewest active
+ * sessions.  We prefer hardware-backed drivers to software ones.
+ *
+ * XXX We need more smarts here (in real life too, but that's
+ * XXX another story altogether).
+ */
+static struct cryptocap *
+crypto_select_driver(const struct cryptoini *cri, int flags)
+{
+       struct cryptocap *cap, *best;
+       int match, hid;
+
+       CRYPTO_DRIVER_ASSERT();
+
+       /*
+        * Look first for hardware crypto devices if permitted.
+        */
+       if (flags & CRYPTOCAP_F_HARDWARE)
+               match = CRYPTOCAP_F_HARDWARE;
+       else
+               match = CRYPTOCAP_F_SOFTWARE;
+       best = NULL;
+again:
+       for (hid = 0; hid < crypto_drivers_num; hid++) {
+               cap = &crypto_drivers[hid];
+               /*
+                * If it's not initialized, is in the process of
+                * going away, or is not appropriate (hardware
+                * or software based on match), then skip.
+                */
+               if (cap->cc_dev == NULL ||
+                   (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
+                   (cap->cc_flags & match) == 0)
+                       continue;
+
+               /* verify all the algorithms are supported. */
+               if (driver_suitable(cap, cri)) {
+                       if (best == NULL ||
+                           cap->cc_sessions < best->cc_sessions)
+                               best = cap;
+               }
+       }
+       if (best != NULL)
+               return best;
+       if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
+               /* sort of an Algol 68-style for loop */
+               match = CRYPTOCAP_F_SOFTWARE;
+               goto again;
+       }
+       return best;
+}
+
+/*
+ * Create a new session.  The crid argument specifies a crypto
+ * driver to use or constraints on a driver to select (hardware
+ * only, software only, either).  Whatever driver is selected
+ * must be capable of the requested crypto algorithms.
+ */
+int
+crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int crid)
+{
+       struct cryptocap *cap;
+       u_int32_t hid, lid;
+       int err;
+       unsigned long d_flags;
+
+       CRYPTO_DRIVER_LOCK();
+       if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+               /*
+                * Use specified driver; verify it is capable.
+                */
+               cap = crypto_checkdriver(crid);
+               if (cap != NULL && !driver_suitable(cap, cri))
+                       cap = NULL;
+       } else {
+               /*
+                * No requested driver; select based on crid flags.
+                */
+               cap = crypto_select_driver(cri, crid);
+               /*
+                * if NULL then can't do everything in one session.
+                * XXX Fix this. We need to inject a "virtual" session
+                * XXX layer right about here.
+                */
+       }
+       if (cap != NULL) {
+               /* Call the driver initialization routine. */
+               hid = cap - crypto_drivers;
+               lid = hid;              /* Pass the driver ID. */
+               cap->cc_sessions++;
+               CRYPTO_DRIVER_UNLOCK();
+               err = CRYPTODEV_NEWSESSION(cap->cc_dev, &lid, cri);
+               CRYPTO_DRIVER_LOCK();
+               if (err == 0) {
+                       (*sid) = (cap->cc_flags & 0xff000000)
+                              | (hid & 0x00ffffff);
+                       (*sid) <<= 32;
+                       (*sid) |= (lid & 0xffffffff);
+               } else
+                       cap->cc_sessions--;
+       } else
+               err = EINVAL;
+       CRYPTO_DRIVER_UNLOCK();
+       return err;
+}
+
+static void
+crypto_remove(struct cryptocap *cap)
+{
+       CRYPTO_DRIVER_ASSERT();
+       if (cap->cc_sessions == 0 && cap->cc_koperations == 0)
+               bzero(cap, sizeof(*cap));
+}
+
+/*
+ * Delete an existing session (or a reserved session on an unregistered
+ * driver).
+ */
+int
+crypto_freesession(u_int64_t sid)
+{
+       struct cryptocap *cap;
+       u_int32_t hid;
+       int err = 0;
+       unsigned long d_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+       CRYPTO_DRIVER_LOCK();
+
+       if (crypto_drivers == NULL) {
+               err = EINVAL;
+               goto done;
+       }
+
+       /* Determine two IDs. */
+       hid = CRYPTO_SESID2HID(sid);
+
+       if (hid >= crypto_drivers_num) {
+               dprintk("%s - INVALID DRIVER NUM %d\n", __FUNCTION__, hid);
+               err = ENOENT;
+               goto done;
+       }
+       cap = &crypto_drivers[hid];
+
+       if (cap->cc_dev) {
+               CRYPTO_DRIVER_UNLOCK();
+               /* Call the driver cleanup routine, if available, unlocked. */
+               err = CRYPTODEV_FREESESSION(cap->cc_dev, sid);
+               CRYPTO_DRIVER_LOCK();
+       }
+
+       if (cap->cc_sessions)
+               cap->cc_sessions--;
+
+       if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
+               crypto_remove(cap);
+
+done:
+       CRYPTO_DRIVER_UNLOCK();
+       return err;
+}
+
+/*
+ * Return an unused driver id.  Used by drivers prior to registering
+ * support for the algorithms they handle.
+ */
+int32_t
+crypto_get_driverid(device_t dev, int flags)
+{
+       struct cryptocap *newdrv;
+       int i;
+       unsigned long d_flags;
+
+       if ((flags & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+               printf("%s: no flags specified when registering driver\n",
+                   device_get_nameunit(dev));
+               return -1;
+       }
+
+       CRYPTO_DRIVER_LOCK();
+
+       for (i = 0; i < crypto_drivers_num; i++) {
+               if (crypto_drivers[i].cc_dev == NULL &&
+                   (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP) == 0) {
+                       break;
+               }
+       }
+
+       /* Out of entries, allocate some more. */
+       if (i == crypto_drivers_num) {
+               /* Be careful about wrap-around. */
+               if (2 * crypto_drivers_num <= crypto_drivers_num) {
+                       CRYPTO_DRIVER_UNLOCK();
+                       printk("crypto: driver count wraparound!\n");
+                       return -1;
+               }
+
+               newdrv = kmalloc(2 * crypto_drivers_num * sizeof(struct cryptocap),
+                               GFP_KERNEL);
+               if (newdrv == NULL) {
+                       CRYPTO_DRIVER_UNLOCK();
+                       printk("crypto: no space to expand driver table!\n");
+                       return -1;
+               }
+
+               memcpy(newdrv, crypto_drivers,
+                               crypto_drivers_num * sizeof(struct cryptocap));
+               memset(&newdrv[crypto_drivers_num], 0,
+                               crypto_drivers_num * sizeof(struct cryptocap));
+
+               crypto_drivers_num *= 2;
+
+               kfree(crypto_drivers);
+               crypto_drivers = newdrv;
+       }
+
+       /* NB: state is zero'd on free */
+       crypto_drivers[i].cc_sessions = 1;      /* Mark */
+       crypto_drivers[i].cc_dev = dev;
+       crypto_drivers[i].cc_flags = flags;
+       if (bootverbose)
+               printf("crypto: assign %s driver id %u, flags %u\n",
+                   device_get_nameunit(dev), i, flags);
+
+       CRYPTO_DRIVER_UNLOCK();
+
+       return i;
+}
+
+/*
+ * Lookup a driver by name.  We match against the full device
+ * name and unit, and against just the name.  The latter gives
+ * us a simple widlcarding by device name.  On success return the
+ * driver/hardware identifier; otherwise return -1.
+ */
+int
+crypto_find_driver(const char *match)
+{
+       int i, len = strlen(match);
+       unsigned long d_flags;
+
+       CRYPTO_DRIVER_LOCK();
+       for (i = 0; i < crypto_drivers_num; i++) {
+               device_t dev = crypto_drivers[i].cc_dev;
+               if (dev == NULL ||
+                   (crypto_drivers[i].cc_flags & CRYPTOCAP_F_CLEANUP))
+                       continue;
+               if (strncmp(match, device_get_nameunit(dev), len) == 0 ||
+                   strncmp(match, device_get_name(dev), len) == 0)
+                       break;
+       }
+       CRYPTO_DRIVER_UNLOCK();
+       return i < crypto_drivers_num ? i : -1;
+}
+
+/*
+ * Return the device_t for the specified driver or NULL
+ * if the driver identifier is invalid.
+ */
+device_t
+crypto_find_device_byhid(int hid)
+{
+       struct cryptocap *cap = crypto_checkdriver(hid);
+       return cap != NULL ? cap->cc_dev : NULL;
+}
+
+/*
+ * Return the device/driver capabilities.
+ */
+int
+crypto_getcaps(int hid)
+{
+       struct cryptocap *cap = crypto_checkdriver(hid);
+       return cap != NULL ? cap->cc_flags : 0;
+}
+
+/*
+ * Register support for a key-related algorithm.  This routine
+ * is called once for each algorithm supported a driver.
+ */
+int
+crypto_kregister(u_int32_t driverid, int kalg, u_int32_t flags)
+{
+       struct cryptocap *cap;
+       int err;
+       unsigned long d_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+       CRYPTO_DRIVER_LOCK();
+
+       cap = crypto_checkdriver(driverid);
+       if (cap != NULL &&
+           (CRK_ALGORITM_MIN <= kalg && kalg <= CRK_ALGORITHM_MAX)) {
+               /*
+                * XXX Do some performance testing to determine placing.
+                * XXX We probably need an auxiliary data structure that
+                * XXX describes relative performances.
+                */
+
+               cap->cc_kalg[kalg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
+               if (bootverbose)
+                       printf("crypto: %s registers key alg %u flags %u\n"
+                               , device_get_nameunit(cap->cc_dev)
+                               , kalg
+                               , flags
+                       );
+               err = 0;
+       } else
+               err = EINVAL;
+
+       CRYPTO_DRIVER_UNLOCK();
+       return err;
+}
+
+/*
+ * Register support for a non-key-related algorithm.  This routine
+ * is called once for each such algorithm supported by a driver.
+ */
+int
+crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen,
+    u_int32_t flags)
+{
+       struct cryptocap *cap;
+       int err;
+       unsigned long d_flags;
+
+       dprintk("%s(id=0x%x, alg=%d, maxoplen=%d, flags=0x%x)\n", __FUNCTION__,
+                       driverid, alg, maxoplen, flags);
+
+       CRYPTO_DRIVER_LOCK();
+
+       cap = crypto_checkdriver(driverid);
+       /* NB: algorithms are in the range [1..max] */
+       if (cap != NULL &&
+           (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX)) {
+               /*
+                * XXX Do some performance testing to determine placing.
+                * XXX We probably need an auxiliary data structure that
+                * XXX describes relative performances.
+                */
+
+               cap->cc_alg[alg] = flags | CRYPTO_ALG_FLAG_SUPPORTED;
+               cap->cc_max_op_len[alg] = maxoplen;
+               if (bootverbose)
+                       printf("crypto: %s registers alg %u flags %u maxoplen %u\n"
+                               , device_get_nameunit(cap->cc_dev)
+                               , alg
+                               , flags
+                               , maxoplen
+                       );
+               cap->cc_sessions = 0;           /* Unmark */
+               err = 0;
+       } else
+               err = EINVAL;
+
+       CRYPTO_DRIVER_UNLOCK();
+       return err;
+}
+
+static void
+driver_finis(struct cryptocap *cap)
+{
+       u_int32_t ses, kops;
+
+       CRYPTO_DRIVER_ASSERT();
+
+       ses = cap->cc_sessions;
+       kops = cap->cc_koperations;
+       bzero(cap, sizeof(*cap));
+       if (ses != 0 || kops != 0) {
+               /*
+                * If there are pending sessions,
+                * just mark as invalid.
+                */
+               cap->cc_flags |= CRYPTOCAP_F_CLEANUP;
+               cap->cc_sessions = ses;
+               cap->cc_koperations = kops;
+       }
+}
+
+/*
+ * Unregister a crypto driver. If there are pending sessions using it,
+ * leave enough information around so that subsequent calls using those
+ * sessions will correctly detect the driver has been unregistered and
+ * reroute requests.
+ */
+int
+crypto_unregister(u_int32_t driverid, int alg)
+{
+       struct cryptocap *cap;
+       int i, err;
+       unsigned long d_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+       CRYPTO_DRIVER_LOCK();
+
+       cap = crypto_checkdriver(driverid);
+       if (cap != NULL &&
+           (CRYPTO_ALGORITHM_MIN <= alg && alg <= CRYPTO_ALGORITHM_MAX) &&
+           cap->cc_alg[alg] != 0) {
+               cap->cc_alg[alg] = 0;
+               cap->cc_max_op_len[alg] = 0;
+
+               /* Was this the last algorithm ? */
+               for (i = 1; i <= CRYPTO_ALGORITHM_MAX; i++)
+                       if (cap->cc_alg[i] != 0)
+                               break;
+
+               if (i == CRYPTO_ALGORITHM_MAX + 1)
+                       driver_finis(cap);
+               err = 0;
+       } else
+               err = EINVAL;
+       CRYPTO_DRIVER_UNLOCK();
+       return err;
+}
+
+/*
+ * Unregister all algorithms associated with a crypto driver.
+ * If there are pending sessions using it, leave enough information
+ * around so that subsequent calls using those sessions will
+ * correctly detect the driver has been unregistered and reroute
+ * requests.
+ */
+int
+crypto_unregister_all(u_int32_t driverid)
+{
+       struct cryptocap *cap;
+       int err;
+       unsigned long d_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+       CRYPTO_DRIVER_LOCK();
+       cap = crypto_checkdriver(driverid);
+       if (cap != NULL) {
+               driver_finis(cap);
+               err = 0;
+       } else
+               err = EINVAL;
+       CRYPTO_DRIVER_UNLOCK();
+
+       return err;
+}
+
+/*
+ * Clear blockage on a driver.  The what parameter indicates whether
+ * the driver is now ready for cryptop's and/or cryptokop's.
+ */
+int
+crypto_unblock(u_int32_t driverid, int what)
+{
+       struct cryptocap *cap;
+       int err;
+       unsigned long q_flags;
+
+       CRYPTO_Q_LOCK();
+       cap = crypto_checkdriver(driverid);
+       if (cap != NULL) {
+               if (what & CRYPTO_SYMQ) {
+                       cap->cc_qblocked = 0;
+                       crypto_all_qblocked = 0;
+               }
+               if (what & CRYPTO_ASYMQ) {
+                       cap->cc_kqblocked = 0;
+                       crypto_all_kqblocked = 0;
+               }
+               if (crp_sleep)
+                       wake_up_interruptible(&cryptoproc_wait);
+               err = 0;
+       } else
+               err = EINVAL;
+       CRYPTO_Q_UNLOCK(); //DAVIDM should this be a driver lock
+
+       return err;
+}
+
+/*
+ * Add a crypto request to a queue, to be processed by the kernel thread.
+ */
+int
+crypto_dispatch(struct cryptop *crp)
+{
+       struct cryptocap *cap;
+       int result = -1;
+       unsigned long q_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       cryptostats.cs_ops++;
+
+       CRYPTO_Q_LOCK();
+       if (crypto_q_cnt >= crypto_q_max) {
+               CRYPTO_Q_UNLOCK();
+               cryptostats.cs_drops++;
+               return ENOMEM;
+       }
+       crypto_q_cnt++;
+
+       /*
+        * Caller marked the request to be processed immediately; dispatch
+        * it directly to the driver unless the driver is currently blocked.
+        */
+       if ((crp->crp_flags & CRYPTO_F_BATCH) == 0) {
+               int hid = CRYPTO_SESID2HID(crp->crp_sid);
+               cap = crypto_checkdriver(hid);
+               /* Driver cannot disappear when there is an active session. */
+               KASSERT(cap != NULL, ("%s: Driver disappeared.", __func__));
+               if (!cap->cc_qblocked) {
+                       crypto_all_qblocked = 0;
+                       crypto_drivers[hid].cc_qblocked = 1;
+                       CRYPTO_Q_UNLOCK();
+                       result = crypto_invoke(cap, crp, 0);
+                       CRYPTO_Q_LOCK();
+                       if (result != ERESTART)
+                               crypto_drivers[hid].cc_qblocked = 0;
+               }
+       }
+       if (result == ERESTART) {
+               /*
+                * The driver ran out of resources, mark the
+                * driver ``blocked'' for cryptop's and put
+                * the request back in the queue.  It would
+                * best to put the request back where we got
+                * it but that's hard so for now we put it
+                * at the front.  This should be ok; putting
+                * it at the end does not work.
+                */
+               list_add(&crp->crp_next, &crp_q);
+               cryptostats.cs_blocks++;
+       } else if (result == -1) {
+               TAILQ_INSERT_TAIL(&crp_q, crp, crp_next);
+       }
+       if (crp_sleep)
+               wake_up_interruptible(&cryptoproc_wait);
+       CRYPTO_Q_UNLOCK();
+       return 0;
+}
+
+/*
+ * Add an asymetric crypto request to a queue,
+ * to be processed by the kernel thread.
+ */
+int
+crypto_kdispatch(struct cryptkop *krp)
+{
+       int error;
+       unsigned long q_flags;
+
+       cryptostats.cs_kops++;
+
+       error = crypto_kinvoke(krp, krp->krp_crid);
+       if (error == ERESTART) {
+               CRYPTO_Q_LOCK();
+               TAILQ_INSERT_TAIL(&crp_kq, krp, krp_next);
+               if (crp_sleep)
+                       wake_up_interruptible(&cryptoproc_wait);
+               CRYPTO_Q_UNLOCK();
+               error = 0;
+       }
+       return error;
+}
+
+/*
+ * Verify a driver is suitable for the specified operation.
+ */
+static __inline int
+kdriver_suitable(const struct cryptocap *cap, const struct cryptkop *krp)
+{
+       return (cap->cc_kalg[krp->krp_op] & CRYPTO_ALG_FLAG_SUPPORTED) != 0;
+}
+
+/*
+ * Select a driver for an asym operation.  The driver must
+ * support the necessary algorithm.  The caller can constrain
+ * which device is selected with the flags parameter.  The
+ * algorithm we use here is pretty stupid; just use the first
+ * driver that supports the algorithms we need. If there are
+ * multiple suitable drivers we choose the driver with the
+ * fewest active operations.  We prefer hardware-backed
+ * drivers to software ones when either may be used.
+ */
+static struct cryptocap *
+crypto_select_kdriver(const struct cryptkop *krp, int flags)
+{
+       struct cryptocap *cap, *best, *blocked;
+       int match, hid;
+
+       CRYPTO_DRIVER_ASSERT();
+
+       /*
+        * Look first for hardware crypto devices if permitted.
+        */
+       if (flags & CRYPTOCAP_F_HARDWARE)
+               match = CRYPTOCAP_F_HARDWARE;
+       else
+               match = CRYPTOCAP_F_SOFTWARE;
+       best = NULL;
+       blocked = NULL;
+again:
+       for (hid = 0; hid < crypto_drivers_num; hid++) {
+               cap = &crypto_drivers[hid];
+               /*
+                * If it's not initialized, is in the process of
+                * going away, or is not appropriate (hardware
+                * or software based on match), then skip.
+                */
+               if (cap->cc_dev == NULL ||
+                   (cap->cc_flags & CRYPTOCAP_F_CLEANUP) ||
+                   (cap->cc_flags & match) == 0)
+                       continue;
+
+               /* verify all the algorithms are supported. */
+               if (kdriver_suitable(cap, krp)) {
+                       if (best == NULL ||
+                           cap->cc_koperations < best->cc_koperations)
+                               best = cap;
+               }
+       }
+       if (best != NULL)
+               return best;
+       if (match == CRYPTOCAP_F_HARDWARE && (flags & CRYPTOCAP_F_SOFTWARE)) {
+               /* sort of an Algol 68-style for loop */
+               match = CRYPTOCAP_F_SOFTWARE;
+               goto again;
+       }
+       return best;
+}
+
+/*
+ * Dispatch an assymetric crypto request.
+ */
+static int
+crypto_kinvoke(struct cryptkop *krp, int crid)
+{
+       struct cryptocap *cap = NULL;
+       int error;
+       unsigned long d_flags;
+
+       KASSERT(krp != NULL, ("%s: krp == NULL", __func__));
+       KASSERT(krp->krp_callback != NULL,
+           ("%s: krp->crp_callback == NULL", __func__));
+
+       CRYPTO_DRIVER_LOCK();
+       if ((crid & (CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE)) == 0) {
+               cap = crypto_checkdriver(crid);
+               if (cap != NULL) {
+                       /*
+                        * Driver present, it must support the necessary
+                        * algorithm and, if s/w drivers are excluded,
+                        * it must be registered as hardware-backed.
+                        */
+                       if (!kdriver_suitable(cap, krp) ||
+                           (!crypto_devallowsoft &&
+                            (cap->cc_flags & CRYPTOCAP_F_HARDWARE) == 0))
+                               cap = NULL;
+               }
+       } else {
+               /*
+                * No requested driver; select based on crid flags.
+                */
+               if (!crypto_devallowsoft)       /* NB: disallow s/w drivers */
+                       crid &= ~CRYPTOCAP_F_SOFTWARE;
+               cap = crypto_select_kdriver(krp, crid);
+       }
+       if (cap != NULL && !cap->cc_kqblocked) {
+               krp->krp_hid = cap - crypto_drivers;
+               cap->cc_koperations++;
+               CRYPTO_DRIVER_UNLOCK();
+               error = CRYPTODEV_KPROCESS(cap->cc_dev, krp, 0);
+               CRYPTO_DRIVER_LOCK();
+               if (error == ERESTART) {
+                       cap->cc_koperations--;
+                       CRYPTO_DRIVER_UNLOCK();
+                       return (error);
+               }
+               /* return the actual device used */
+               krp->krp_crid = krp->krp_hid;
+       } else {
+               /*
+                * NB: cap is !NULL if device is blocked; in
+                *     that case return ERESTART so the operation
+                *     is resubmitted if possible.
+                */
+               error = (cap == NULL) ? ENODEV : ERESTART;
+       }
+       CRYPTO_DRIVER_UNLOCK();
+
+       if (error) {
+               krp->krp_status = error;
+               crypto_kdone(krp);
+       }
+       return 0;
+}
+
+
+/*
+ * Dispatch a crypto request to the appropriate crypto devices.
+ */
+static int
+crypto_invoke(struct cryptocap *cap, struct cryptop *crp, int hint)
+{
+       KASSERT(crp != NULL, ("%s: crp == NULL", __func__));
+       KASSERT(crp->crp_callback != NULL,
+           ("%s: crp->crp_callback == NULL", __func__));
+       KASSERT(crp->crp_desc != NULL, ("%s: crp->crp_desc == NULL", __func__));
+
+       dprintk("%s()\n", __FUNCTION__);
+
+#ifdef CRYPTO_TIMING
+       if (crypto_timing)
+               crypto_tstat(&cryptostats.cs_invoke, &crp->crp_tstamp);
+#endif
+       if (cap->cc_flags & CRYPTOCAP_F_CLEANUP) {
+               struct cryptodesc *crd;
+               u_int64_t nid;
+
+               /*
+                * Driver has unregistered; migrate the session and return
+                * an error to the caller so they'll resubmit the op.
+                *
+                * XXX: What if there are more already queued requests for this
+                *      session?
+                */
+               crypto_freesession(crp->crp_sid);
+
+               for (crd = crp->crp_desc; crd->crd_next; crd = crd->crd_next)
+                       crd->CRD_INI.cri_next = &(crd->crd_next->CRD_INI);
+
+               /* XXX propagate flags from initial session? */
+               if (crypto_newsession(&nid, &(crp->crp_desc->CRD_INI),
+                   CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE) == 0)
+                       crp->crp_sid = nid;
+
+               crp->crp_etype = EAGAIN;
+               crypto_done(crp);
+               return 0;
+       } else {
+               /*
+                * Invoke the driver to process the request.
+                */
+               return CRYPTODEV_PROCESS(cap->cc_dev, crp, hint);
+       }
+}
+
+/*
+ * Release a set of crypto descriptors.
+ */
+void
+crypto_freereq(struct cryptop *crp)
+{
+       struct cryptodesc *crd;
+
+       if (crp == NULL)
+               return;
+
+#ifdef DIAGNOSTIC
+       {
+               struct cryptop *crp2;
+               unsigned long q_flags;
+
+               CRYPTO_Q_LOCK();
+               TAILQ_FOREACH(crp2, &crp_q, crp_next) {
+                       KASSERT(crp2 != crp,
+                           ("Freeing cryptop from the crypto queue (%p).",
+                           crp));
+               }
+               CRYPTO_Q_UNLOCK();
+               CRYPTO_RETQ_LOCK();
+               TAILQ_FOREACH(crp2, &crp_ret_q, crp_next) {
+                       KASSERT(crp2 != crp,
+                           ("Freeing cryptop from the return queue (%p).",
+                           crp));
+               }
+               CRYPTO_RETQ_UNLOCK();
+       }
+#endif
+
+       while ((crd = crp->crp_desc) != NULL) {
+               crp->crp_desc = crd->crd_next;
+               kmem_cache_free(cryptodesc_zone, crd);
+       }
+       kmem_cache_free(cryptop_zone, crp);
+}
+
+/*
+ * Acquire a set of crypto descriptors.
+ */
+struct cryptop *
+crypto_getreq(int num)
+{
+       struct cryptodesc *crd;
+       struct cryptop *crp;
+
+       crp = kmem_cache_alloc(cryptop_zone, SLAB_ATOMIC);
+       if (crp != NULL) {
+               memset(crp, 0, sizeof(*crp));
+               INIT_LIST_HEAD(&crp->crp_next);
+               init_waitqueue_head(&crp->crp_waitq);
+               while (num--) {
+                       crd = kmem_cache_alloc(cryptodesc_zone, SLAB_ATOMIC);
+                       if (crd == NULL) {
+                               crypto_freereq(crp);
+                               return NULL;
+                       }
+                       memset(crd, 0, sizeof(*crd));
+                       crd->crd_next = crp->crp_desc;
+                       crp->crp_desc = crd;
+               }
+       }
+       return crp;
+}
+
+/*
+ * Invoke the callback on behalf of the driver.
+ */
+void
+crypto_done(struct cryptop *crp)
+{
+       unsigned long q_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if ((crp->crp_flags & CRYPTO_F_DONE) == 0) {
+               crp->crp_flags |= CRYPTO_F_DONE;
+               CRYPTO_Q_LOCK();
+               crypto_q_cnt--;
+               CRYPTO_Q_UNLOCK();
+       } else
+               printk("crypto: crypto_done op already done, flags 0x%x",
+                               crp->crp_flags);
+       if (crp->crp_etype != 0)
+               cryptostats.cs_errs++;
+       /*
+        * CBIMM means unconditionally do the callback immediately;
+        * CBIFSYNC means do the callback immediately only if the
+        * operation was done synchronously.  Both are used to avoid
+        * doing extraneous context switches; the latter is mostly
+        * used with the software crypto driver.
+        */
+       if ((crp->crp_flags & CRYPTO_F_CBIMM) ||
+           ((crp->crp_flags & CRYPTO_F_CBIFSYNC) &&
+            (CRYPTO_SESID2CAPS(crp->crp_sid) & CRYPTOCAP_F_SYNC))) {
+               /*
+                * Do the callback directly.  This is ok when the
+                * callback routine does very little (e.g. the
+                * /dev/crypto callback method just does a wakeup).
+                */
+               crp->crp_callback(crp);
+       } else {
+               unsigned long r_flags;
+               /*
+                * Normal case; queue the callback for the thread.
+                */
+               CRYPTO_RETQ_LOCK();
+               if (CRYPTO_RETQ_EMPTY())
+                       wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
+               TAILQ_INSERT_TAIL(&crp_ret_q, crp, crp_next);
+               CRYPTO_RETQ_UNLOCK();
+       }
+}
+
+/*
+ * Invoke the callback on behalf of the driver.
+ */
+void
+crypto_kdone(struct cryptkop *krp)
+{
+       struct cryptocap *cap;
+       unsigned long d_flags;
+
+       if ((krp->krp_flags & CRYPTO_KF_DONE) != 0)
+               printk("crypto: crypto_kdone op already done, flags 0x%x",
+                               krp->krp_flags);
+       krp->krp_flags |= CRYPTO_KF_DONE;
+       if (krp->krp_status != 0)
+               cryptostats.cs_kerrs++;
+
+       CRYPTO_DRIVER_LOCK();
+       /* XXX: What if driver is loaded in the meantime? */
+       if (krp->krp_hid < crypto_drivers_num) {
+               cap = &crypto_drivers[krp->krp_hid];
+               cap->cc_koperations--;
+               KASSERT(cap->cc_koperations >= 0, ("cc_koperations < 0"));
+               if (cap->cc_flags & CRYPTOCAP_F_CLEANUP)
+                       crypto_remove(cap);
+       }
+       CRYPTO_DRIVER_UNLOCK();
+
+       /*
+        * CBIMM means unconditionally do the callback immediately;
+        * This is used to avoid doing extraneous context switches
+        */
+       if ((krp->krp_flags & CRYPTO_KF_CBIMM)) {
+               /*
+                * Do the callback directly.  This is ok when the
+                * callback routine does very little (e.g. the
+                * /dev/crypto callback method just does a wakeup).
+                */
+               krp->krp_callback(krp);
+       } else {
+               unsigned long r_flags;
+               /*
+                * Normal case; queue the callback for the thread.
+                */
+               CRYPTO_RETQ_LOCK();
+               if (CRYPTO_RETQ_EMPTY())
+                       wake_up_interruptible(&cryptoretproc_wait);/* shared wait channel */
+               TAILQ_INSERT_TAIL(&crp_ret_kq, krp, krp_next);
+               CRYPTO_RETQ_UNLOCK();
+       }
+}
+
+int
+crypto_getfeat(int *featp)
+{
+       int hid, kalg, feat = 0;
+       unsigned long d_flags;
+
+       CRYPTO_DRIVER_LOCK();
+       for (hid = 0; hid < crypto_drivers_num; hid++) {
+               const struct cryptocap *cap = &crypto_drivers[hid];
+
+               if ((cap->cc_flags & CRYPTOCAP_F_SOFTWARE) &&
+                   !crypto_devallowsoft) {
+                       continue;
+               }
+               for (kalg = 0; kalg < CRK_ALGORITHM_MAX; kalg++)
+                       if (cap->cc_kalg[kalg] & CRYPTO_ALG_FLAG_SUPPORTED)
+                               feat |=  1 << kalg;
+       }
+       CRYPTO_DRIVER_UNLOCK();
+       *featp = feat;
+       return (0);
+}
+
+/*
+ * Crypto thread, dispatches crypto requests.
+ */
+static int
+crypto_proc(void *arg)
+{
+       struct cryptop *crp, *submit;
+       struct cryptkop *krp, *krpp;
+       struct cryptocap *cap;
+       u_int32_t hid;
+       int result, hint;
+       unsigned long q_flags;
+
+       ocf_daemonize("crypto");
+
+       CRYPTO_Q_LOCK();
+       for (;;) {
+               /*
+                * we need to make sure we don't get into a busy loop with nothing
+                * to do,  the two crypto_all_*blocked vars help us find out when
+                * we are all full and can do nothing on any driver or Q.  If so we
+                * wait for an unblock.
+                */
+               crypto_all_qblocked  = !list_empty(&crp_q);
+
+               /*
+                * Find the first element in the queue that can be
+                * processed and look-ahead to see if multiple ops
+                * are ready for the same driver.
+                */
+               submit = NULL;
+               hint = 0;
+               list_for_each_entry(crp, &crp_q, crp_next) {
+                       hid = CRYPTO_SESID2HID(crp->crp_sid);
+                       cap = crypto_checkdriver(hid);
+                       /*
+                        * Driver cannot disappear when there is an active
+                        * session.
+                        */
+                       KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
+                           __func__, __LINE__));
+                       if (cap == NULL || cap->cc_dev == NULL) {
+                               /* Op needs to be migrated, process it. */
+                               if (submit == NULL)
+                                       submit = crp;
+                               break;
+                       }
+                       if (!cap->cc_qblocked) {
+                               if (submit != NULL) {
+                                       /*
+                                        * We stop on finding another op,
+                                        * regardless whether its for the same
+                                        * driver or not.  We could keep
+                                        * searching the queue but it might be
+                                        * better to just use a per-driver
+                                        * queue instead.
+                                        */
+                                       if (CRYPTO_SESID2HID(submit->crp_sid) == hid)
+                                               hint = CRYPTO_HINT_MORE;
+                                       break;
+                               } else {
+                                       submit = crp;
+                                       if ((submit->crp_flags & CRYPTO_F_BATCH) == 0)
+                                               break;
+                                       /* keep scanning for more are q'd */
+                               }
+                       }
+               }
+               if (submit != NULL) {
+                       hid = CRYPTO_SESID2HID(submit->crp_sid);
+                       crypto_all_qblocked = 0;
+                       list_del(&submit->crp_next);
+                       crypto_drivers[hid].cc_qblocked = 1;
+                       cap = crypto_checkdriver(hid);
+                       CRYPTO_Q_UNLOCK();
+                       KASSERT(cap != NULL, ("%s:%u Driver disappeared.",
+                           __func__, __LINE__));
+                       result = crypto_invoke(cap, submit, hint);
+                       CRYPTO_Q_LOCK();
+                       if (result == ERESTART) {
+                               /*
+                                * The driver ran out of resources, mark the
+                                * driver ``blocked'' for cryptop's and put
+                                * the request back in the queue.  It would
+                                * best to put the request back where we got
+                                * it but that's hard so for now we put it
+                                * at the front.  This should be ok; putting
+                                * it at the end does not work.
+                                */
+                               /* XXX validate sid again? */
+                               list_add(&submit->crp_next, &crp_q);
+                               cryptostats.cs_blocks++;
+                       } else
+                               crypto_drivers[hid].cc_qblocked=0;
+               }
+
+               crypto_all_kqblocked = !list_empty(&crp_kq);
+
+               /* As above, but for key ops */
+               krp = NULL;
+               list_for_each_entry(krpp, &crp_kq, krp_next) {
+                       cap = crypto_checkdriver(krpp->krp_hid);
+                       if (cap == NULL || cap->cc_dev == NULL) {
+                               /*
+                                * Operation needs to be migrated, invalidate
+                                * the assigned device so it will reselect a
+                                * new one below.  Propagate the original
+                                * crid selection flags if supplied.
+                                */
+                               krp->krp_hid = krp->krp_crid &
+                                   (CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE);
+                               if (krp->krp_hid == 0)
+                                       krp->krp_hid =
+                                   CRYPTOCAP_F_SOFTWARE|CRYPTOCAP_F_HARDWARE;
+                               break;
+                       }
+                       if (!cap->cc_kqblocked) {
+                               krp = krpp;
+                               break;
+                       }
+               }
+               if (krp != NULL) {
+                       crypto_all_kqblocked = 0;
+                       list_del(&krp->krp_next);
+                       crypto_drivers[krp->krp_hid].cc_kqblocked = 1;
+                       CRYPTO_Q_UNLOCK();
+                       result = crypto_kinvoke(krp, krp->krp_hid);
+                       CRYPTO_Q_LOCK();
+                       if (result == ERESTART) {
+                               /*
+                                * The driver ran out of resources, mark the
+                                * driver ``blocked'' for cryptkop's and put
+                                * the request back in the queue.  It would
+                                * best to put the request back where we got
+                                * it but that's hard so for now we put it
+                                * at the front.  This should be ok; putting
+                                * it at the end does not work.
+                                */
+                               /* XXX validate sid again? */
+                               list_add(&krp->krp_next, &crp_kq);
+                               cryptostats.cs_kblocks++;
+                       } else
+                               crypto_drivers[krp->krp_hid].cc_kqblocked = 0;
+               }
+
+               if (submit == NULL && krp == NULL) {
+                       /*
+                        * Nothing more to be processed.  Sleep until we're
+                        * woken because there are more ops to process.
+                        * This happens either by submission or by a driver
+                        * becoming unblocked and notifying us through
+                        * crypto_unblock.  Note that when we wakeup we
+                        * start processing each queue again from the
+                        * front. It's not clear that it's important to
+                        * preserve this ordering since ops may finish
+                        * out of order if dispatched to different devices
+                        * and some become blocked while others do not.
+                        */
+                       dprintk("%s - sleeping (qe=%d qb=%d kqe=%d kqb=%d)\n",
+                                       __FUNCTION__,
+                                       list_empty(&crp_q), crypto_all_qblocked,
+                                       list_empty(&crp_kq), crypto_all_kqblocked);
+                       CRYPTO_Q_UNLOCK();
+                       crp_sleep = 1;
+                       wait_event_interruptible(cryptoproc_wait,
+                                       !(list_empty(&crp_q) || crypto_all_qblocked) ||
+                                       !(list_empty(&crp_kq) || crypto_all_kqblocked) ||
+                                       cryptoproc == (pid_t) -1);
+                       crp_sleep = 0;
+                       if (signal_pending (current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                               spin_lock_irq(&current->sigmask_lock);
+#endif
+                               flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                               spin_unlock_irq(&current->sigmask_lock);
+#endif
+                       }
+                       CRYPTO_Q_LOCK();
+                       dprintk("%s - awake\n", __FUNCTION__);
+                       if (cryptoproc == (pid_t) -1)
+                               break;
+                       cryptostats.cs_intrs++;
+               }
+       }
+       CRYPTO_Q_UNLOCK();
+       complete_and_exit(&cryptoproc_exited, 0);
+}
+
+/*
+ * Crypto returns thread, does callbacks for processed crypto requests.
+ * Callbacks are done here, rather than in the crypto drivers, because
+ * callbacks typically are expensive and would slow interrupt handling.
+ */
+static int
+crypto_ret_proc(void *arg)
+{
+       struct cryptop *crpt;
+       struct cryptkop *krpt;
+       unsigned long  r_flags;
+
+       ocf_daemonize("crypto_ret");
+
+       CRYPTO_RETQ_LOCK();
+       for (;;) {
+               /* Harvest return q's for completed ops */
+               crpt = NULL;
+               if (!list_empty(&crp_ret_q))
+                       crpt = list_entry(crp_ret_q.next, typeof(*crpt), crp_next);
+               if (crpt != NULL)
+                       list_del(&crpt->crp_next);
+
+               krpt = NULL;
+               if (!list_empty(&crp_ret_kq))
+                       krpt = list_entry(crp_ret_kq.next, typeof(*krpt), krp_next);
+               if (krpt != NULL)
+                       list_del(&krpt->krp_next);
+
+               if (crpt != NULL || krpt != NULL) {
+                       CRYPTO_RETQ_UNLOCK();
+                       /*
+                        * Run callbacks unlocked.
+                        */
+                       if (crpt != NULL)
+                               crpt->crp_callback(crpt);
+                       if (krpt != NULL)
+                               krpt->krp_callback(krpt);
+                       CRYPTO_RETQ_LOCK();
+               } else {
+                       /*
+                        * Nothing more to be processed.  Sleep until we're
+                        * woken because there are more returns to process.
+                        */
+                       dprintk("%s - sleeping\n", __FUNCTION__);
+                       CRYPTO_RETQ_UNLOCK();
+                       wait_event_interruptible(cryptoretproc_wait,
+                                       cryptoretproc == (pid_t) -1 ||
+                                       !list_empty(&crp_ret_q) ||
+                                       !list_empty(&crp_ret_kq));
+                       if (signal_pending (current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                               spin_lock_irq(&current->sigmask_lock);
+#endif
+                               flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                               spin_unlock_irq(&current->sigmask_lock);
+#endif
+                       }
+                       CRYPTO_RETQ_LOCK();
+                       dprintk("%s - awake\n", __FUNCTION__);
+                       if (cryptoretproc == (pid_t) -1) {
+                               dprintk("%s - EXITING!\n", __FUNCTION__);
+                               break;
+                       }
+                       cryptostats.cs_rets++;
+               }
+       }
+       CRYPTO_RETQ_UNLOCK();
+       complete_and_exit(&cryptoretproc_exited, 0);
+}
+
+
+#if 0 /* should put this into /proc or something */
+static void
+db_show_drivers(void)
+{
+       int hid;
+
+       db_printf("%12s %4s %4s %8s %2s %2s\n"
+               , "Device"
+               , "Ses"
+               , "Kops"
+               , "Flags"
+               , "QB"
+               , "KB"
+       );
+       for (hid = 0; hid < crypto_drivers_num; hid++) {
+               const struct cryptocap *cap = &crypto_drivers[hid];
+               if (cap->cc_dev == NULL)
+                       continue;
+               db_printf("%-12s %4u %4u %08x %2u %2u\n"
+                   , device_get_nameunit(cap->cc_dev)
+                   , cap->cc_sessions
+                   , cap->cc_koperations
+                   , cap->cc_flags
+                   , cap->cc_qblocked
+                   , cap->cc_kqblocked
+               );
+       }
+}
+
+DB_SHOW_COMMAND(crypto, db_show_crypto)
+{
+       struct cryptop *crp;
+
+       db_show_drivers();
+       db_printf("\n");
+
+       db_printf("%4s %8s %4s %4s %4s %4s %8s %8s\n",
+           "HID", "Caps", "Ilen", "Olen", "Etype", "Flags",
+           "Desc", "Callback");
+       TAILQ_FOREACH(crp, &crp_q, crp_next) {
+               db_printf("%4u %08x %4u %4u %4u %04x %8p %8p\n"
+                   , (int) CRYPTO_SESID2HID(crp->crp_sid)
+                   , (int) CRYPTO_SESID2CAPS(crp->crp_sid)
+                   , crp->crp_ilen, crp->crp_olen
+                   , crp->crp_etype
+                   , crp->crp_flags
+                   , crp->crp_desc
+                   , crp->crp_callback
+               );
+       }
+       if (!TAILQ_EMPTY(&crp_ret_q)) {
+               db_printf("\n%4s %4s %4s %8s\n",
+                   "HID", "Etype", "Flags", "Callback");
+               TAILQ_FOREACH(crp, &crp_ret_q, crp_next) {
+                       db_printf("%4u %4u %04x %8p\n"
+                           , (int) CRYPTO_SESID2HID(crp->crp_sid)
+                           , crp->crp_etype
+                           , crp->crp_flags
+                           , crp->crp_callback
+                       );
+               }
+       }
+}
+
+DB_SHOW_COMMAND(kcrypto, db_show_kcrypto)
+{
+       struct cryptkop *krp;
+
+       db_show_drivers();
+       db_printf("\n");
+
+       db_printf("%4s %5s %4s %4s %8s %4s %8s\n",
+           "Op", "Status", "#IP", "#OP", "CRID", "HID", "Callback");
+       TAILQ_FOREACH(krp, &crp_kq, krp_next) {
+               db_printf("%4u %5u %4u %4u %08x %4u %8p\n"
+                   , krp->krp_op
+                   , krp->krp_status
+                   , krp->krp_iparams, krp->krp_oparams
+                   , krp->krp_crid, krp->krp_hid
+                   , krp->krp_callback
+               );
+       }
+       if (!TAILQ_EMPTY(&crp_ret_q)) {
+               db_printf("%4s %5s %8s %4s %8s\n",
+                   "Op", "Status", "CRID", "HID", "Callback");
+               TAILQ_FOREACH(krp, &crp_ret_kq, krp_next) {
+                       db_printf("%4u %5u %08x %4u %8p\n"
+                           , krp->krp_op
+                           , krp->krp_status
+                           , krp->krp_crid, krp->krp_hid
+                           , krp->krp_callback
+                       );
+               }
+       }
+}
+#endif
+
+
+static int
+crypto_init(void)
+{
+       int error;
+
+       dprintk("%s(0x%x)\n", __FUNCTION__, (int) crypto_init);
+
+       if (crypto_initted)
+               return 0;
+       crypto_initted = 1;
+
+       spin_lock_init(&crypto_drivers_lock);
+       spin_lock_init(&crypto_q_lock);
+       spin_lock_init(&crypto_ret_q_lock);
+
+       cryptop_zone = kmem_cache_create("cryptop", sizeof(struct cryptop),
+                                      0, SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+                                      , NULL
+#endif
+                                       );
+
+       cryptodesc_zone = kmem_cache_create("cryptodesc", sizeof(struct cryptodesc),
+                                      0, SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+                                      , NULL
+#endif
+                                       );
+
+       if (cryptodesc_zone == NULL || cryptop_zone == NULL) {
+               printk("crypto: crypto_init cannot setup crypto zones\n");
+               error = ENOMEM;
+               goto bad;
+       }
+
+       crypto_drivers_num = CRYPTO_DRIVERS_INITIAL;
+       crypto_drivers = kmalloc(crypto_drivers_num * sizeof(struct cryptocap),
+                       GFP_KERNEL);
+       if (crypto_drivers == NULL) {
+               printk("crypto: crypto_init cannot setup crypto drivers\n");
+               error = ENOMEM;
+               goto bad;
+       }
+
+       memset(crypto_drivers, 0, crypto_drivers_num * sizeof(struct cryptocap));
+
+       init_completion(&cryptoproc_exited);
+       init_completion(&cryptoretproc_exited);
+
+       cryptoproc = 0; /* to avoid race condition where proc runs first */
+       cryptoproc = kernel_thread(crypto_proc, NULL, CLONE_FS|CLONE_FILES);
+       if (cryptoproc < 0) {
+               error = cryptoproc;
+               printk("crypto: crypto_init cannot start crypto thread; error %d",
+                       error);
+               goto bad;
+       }
+
+       cryptoretproc = 0; /* to avoid race condition where proc runs first */
+       cryptoretproc = kernel_thread(crypto_ret_proc, NULL, CLONE_FS|CLONE_FILES);
+       if (cryptoretproc < 0) {
+               error = cryptoretproc;
+               printk("crypto: crypto_init cannot start cryptoret thread; error %d",
+                               error);
+               goto bad;
+       }
+
+       return 0;
+bad:
+       crypto_exit();
+       return error;
+}
+
+
+static void
+crypto_exit(void)
+{
+       pid_t p;
+       unsigned long d_flags;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       /*
+        * Terminate any crypto threads.
+        */
+
+       CRYPTO_DRIVER_LOCK();
+       p = cryptoproc;
+       cryptoproc = (pid_t) -1;
+       kill_proc(p, SIGTERM, 1);
+       wake_up_interruptible(&cryptoproc_wait);
+       CRYPTO_DRIVER_UNLOCK();
+
+       wait_for_completion(&cryptoproc_exited);
+
+       CRYPTO_DRIVER_LOCK();
+       p = cryptoretproc;
+       cryptoretproc = (pid_t) -1;
+       kill_proc(p, SIGTERM, 1);
+       wake_up_interruptible(&cryptoretproc_wait);
+       CRYPTO_DRIVER_UNLOCK();
+
+       wait_for_completion(&cryptoretproc_exited);
+
+       /* XXX flush queues??? */
+
+       /* 
+        * Reclaim dynamically allocated resources.
+        */
+       if (crypto_drivers != NULL)
+               kfree(crypto_drivers);
+
+       if (cryptodesc_zone != NULL)
+               kmem_cache_destroy(cryptodesc_zone);
+       if (cryptop_zone != NULL)
+               kmem_cache_destroy(cryptop_zone);
+}
+
+
+EXPORT_SYMBOL(crypto_newsession);
+EXPORT_SYMBOL(crypto_freesession);
+EXPORT_SYMBOL(crypto_get_driverid);
+EXPORT_SYMBOL(crypto_kregister);
+EXPORT_SYMBOL(crypto_register);
+EXPORT_SYMBOL(crypto_unregister);
+EXPORT_SYMBOL(crypto_unregister_all);
+EXPORT_SYMBOL(crypto_unblock);
+EXPORT_SYMBOL(crypto_dispatch);
+EXPORT_SYMBOL(crypto_kdispatch);
+EXPORT_SYMBOL(crypto_freereq);
+EXPORT_SYMBOL(crypto_getreq);
+EXPORT_SYMBOL(crypto_done);
+EXPORT_SYMBOL(crypto_kdone);
+EXPORT_SYMBOL(crypto_getfeat);
+EXPORT_SYMBOL(crypto_userasymcrypto);
+EXPORT_SYMBOL(crypto_getcaps);
+EXPORT_SYMBOL(crypto_find_driver);
+EXPORT_SYMBOL(crypto_find_device_byhid);
+
+module_init(crypto_init);
+module_exit(crypto_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("OCF (OpenBSD Cryptographic Framework)");
--- /dev/null
+++ b/crypto/ocf/criov.c
@@ -0,0 +1,215 @@
+/*      $OpenBSD: criov.c,v 1.9 2002/01/29 15:48:29 jason Exp $        */
+
+/*
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 1999 Theo de Raadt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/criov.c,v 1.5 2006/06/04 22:15:13 pjd Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/skbuff.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/io.h>
+
+#include <uio.h>
+#include <cryptodev.h>
+
+/*
+ * This macro is only for avoiding code duplication, as we need to skip
+ * given number of bytes in the same way in three functions below.
+ */
+#define        CUIO_SKIP()     do {                                            \
+       KASSERT(off >= 0, ("%s: off %d < 0", __func__, off));           \
+       KASSERT(len >= 0, ("%s: len %d < 0", __func__, len));           \
+       while (off > 0) {                                               \
+               KASSERT(iol >= 0, ("%s: empty in skip", __func__));     \
+               if (off < iov->iov_len)                                 \
+                       break;                                          \
+               off -= iov->iov_len;                                    \
+               iol--;                                                  \
+               iov++;                                                  \
+       }                                                               \
+} while (0)
+
+void
+cuio_copydata(struct uio* uio, int off, int len, caddr_t cp)
+{
+       struct iovec *iov = uio->uio_iov;
+       int iol = uio->uio_iovcnt;
+       unsigned count;
+
+       CUIO_SKIP();
+       while (len > 0) {
+               KASSERT(iol >= 0, ("%s: empty", __func__));
+               count = min((int)(iov->iov_len - off), len);
+               memcpy(cp, ((caddr_t)iov->iov_base) + off, count);
+               len -= count;
+               cp += count;
+               off = 0;
+               iol--;
+               iov++;
+       }
+}
+
+void
+cuio_copyback(struct uio* uio, int off, int len, caddr_t cp)
+{
+       struct iovec *iov = uio->uio_iov;
+       int iol = uio->uio_iovcnt;
+       unsigned count;
+
+       CUIO_SKIP();
+       while (len > 0) {
+               KASSERT(iol >= 0, ("%s: empty", __func__));
+               count = min((int)(iov->iov_len - off), len);
+               memcpy(((caddr_t)iov->iov_base) + off, cp, count);
+               len -= count;
+               cp += count;
+               off = 0;
+               iol--;
+               iov++;
+       }
+}
+
+/*
+ * Return a pointer to iov/offset of location in iovec list.
+ */
+struct iovec *
+cuio_getptr(struct uio *uio, int loc, int *off)
+{
+       struct iovec *iov = uio->uio_iov;
+       int iol = uio->uio_iovcnt;
+
+       while (loc >= 0) {
+               /* Normal end of search */
+               if (loc < iov->iov_len) {
+                       *off = loc;
+                       return (iov);
+               }
+
+               loc -= iov->iov_len;
+               if (iol == 0) {
+                       if (loc == 0) {
+                               /* Point at the end of valid data */
+                               *off = iov->iov_len;
+                               return (iov);
+                       } else
+                               return (NULL);
+               } else {
+                       iov++, iol--;
+               }
+       }
+
+       return (NULL);
+}
+
+EXPORT_SYMBOL(cuio_copyback);
+EXPORT_SYMBOL(cuio_copydata);
+EXPORT_SYMBOL(cuio_getptr);
+
+
+static void
+skb_copy_bits_back(struct sk_buff *skb, int offset, caddr_t cp, int len)
+{
+       int i;
+       if (offset < skb_headlen(skb)) {
+               memcpy(skb->data + offset, cp, min_t(int, skb_headlen(skb), len));
+               len -= skb_headlen(skb);
+               cp += skb_headlen(skb);
+       }
+       offset -= skb_headlen(skb);
+       for (i = 0; len > 0 && i < skb_shinfo(skb)->nr_frags; i++) {
+               if (offset < skb_shinfo(skb)->frags[i].size) {
+                       memcpy(page_address(skb_shinfo(skb)->frags[i].page) +
+                                       skb_shinfo(skb)->frags[i].page_offset,
+                                       cp, min_t(int, skb_shinfo(skb)->frags[i].size, len));
+                       len -= skb_shinfo(skb)->frags[i].size;
+                       cp += skb_shinfo(skb)->frags[i].size;
+               }
+               offset -= skb_shinfo(skb)->frags[i].size;
+       }
+}
+
+void
+crypto_copyback(int flags, caddr_t buf, int off, int size, caddr_t in)
+{
+
+       if ((flags & CRYPTO_F_SKBUF) != 0)
+               skb_copy_bits_back((struct sk_buff *)buf, off, in, size);
+       else if ((flags & CRYPTO_F_IOV) != 0)
+               cuio_copyback((struct uio *)buf, off, size, in);
+       else
+               bcopy(in, buf + off, size);
+}
+
+void
+crypto_copydata(int flags, caddr_t buf, int off, int size, caddr_t out)
+{
+
+       if ((flags & CRYPTO_F_SKBUF) != 0)
+               skb_copy_bits((struct sk_buff *)buf, off, out, size);
+       else if ((flags & CRYPTO_F_IOV) != 0)
+               cuio_copydata((struct uio *)buf, off, size, out);
+       else
+               bcopy(buf + off, out, size);
+}
+
+int
+crypto_apply(int flags, caddr_t buf, int off, int len,
+    int (*f)(void *, void *, u_int), void *arg)
+{
+#if 0
+       int error;
+
+       if ((flags & CRYPTO_F_SKBUF) != 0)
+               error = XXXXXX((struct mbuf *)buf, off, len, f, arg);
+       else if ((flags & CRYPTO_F_IOV) != 0)
+               error = cuio_apply((struct uio *)buf, off, len, f, arg);
+       else
+               error = (*f)(arg, buf + off, len);
+       return (error);
+#else
+       KASSERT(0, ("crypto_apply not implemented!\n"));
+#endif
+       return 0;
+}
+
+EXPORT_SYMBOL(crypto_copyback);
+EXPORT_SYMBOL(crypto_copydata);
+EXPORT_SYMBOL(crypto_apply);
+
--- /dev/null
+++ b/crypto/ocf/uio.h
@@ -0,0 +1,54 @@
+#ifndef _OCF_UIO_H_
+#define _OCF_UIO_H_
+
+#include <linux/uio.h>
+
+/*
+ * The linux uio.h doesn't have all we need.  To be fully api compatible
+ * with the BSD cryptodev,  we need to keep this around.  Perhaps this can
+ * be moved back into the linux/uio.h
+ *
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ * ---------------------------------------------------------------------------
+ */
+
+struct uio {
+       struct  iovec *uio_iov;
+       int             uio_iovcnt;
+       off_t   uio_offset;
+       int             uio_resid;
+#if 0
+       enum    uio_seg uio_segflg;
+       enum    uio_rw uio_rw;
+       struct  thread *uio_td;
+#endif
+};
+
+#endif
--- /dev/null
+++ b/crypto/ocf/talitos/talitos.c
@@ -0,0 +1,1359 @@
+/*
+ * crypto/ocf/talitos/talitos.c
+ *
+ * An OCF-Linux module that uses Freescale's SEC to do the crypto.
+ * Based on crypto/ocf/hifn and crypto/ocf/safe OCF drivers
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * This code written by Kim A. B. Phillips <kim.phillips@freescale.com>
+ * some code copied from files with the following:
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ---------------------------------------------------------------------------
+ *
+ * NOTES:
+ *
+ * The Freescale SEC (also known as 'talitos') resides on the
+ * internal bus, and runs asynchronous to the processor core.  It has
+ * a wide gamut of cryptographic acceleration features, including single-
+ * pass IPsec (also known as algorithm chaining).  To properly utilize 
+ * all of the SEC's performance enhancing features, further reworking 
+ * of higher level code (framework, applications) will be necessary.
+ *
+ * The following table shows which SEC version is present in which devices:
+ * 
+ * Devices       SEC version
+ *
+ * 8272, 8248    SEC 1.0
+ * 885, 875      SEC 1.2
+ * 8555E, 8541E  SEC 2.0
+ * 8349E         SEC 2.01
+ * 8548E         SEC 2.1
+ *
+ * The following table shows the features offered by each SEC version:
+ *
+ *                            Max.   chan-
+ * version  Bus I/F       Clock  nels  DEU AESU AFEU MDEU PKEU RNG KEU
+ *
+ * SEC 1.0  internal 64b  100MHz   4     1    1    1    1    1   1   0
+ * SEC 1.2  internal 32b   66MHz   1     1    1    0    1    0   0   0
+ * SEC 2.0  internal 64b  166MHz   4     1    1    1    1    1   1   0
+ * SEC 2.01 internal 64b  166MHz   4     1    1    1    1    1   1   0
+ * SEC 2.1  internal 64b  333MHz   4     1    1    1    1    1   1   1
+ *
+ * Each execution unit in the SEC has two modes of execution; channel and
+ * slave/debug.  This driver employs the channel infrastructure in the
+ * device for convenience.  Only the RNG is directly accessed due to the
+ * convenience of its random fifo pool.  The relationship between the
+ * channels and execution units is depicted in the following diagram:
+ *
+ *    -------   ------------
+ * ---| ch0 |---|          |
+ *    -------   |          |
+ *              |          |------+-------+-------+-------+------------
+ *    -------   |          |      |       |       |       |           |
+ * ---| ch1 |---|          |      |       |       |       |           |
+ *    -------   |          |   ------  ------  ------  ------      ------
+ *              |controller|   |DEU |  |AESU|  |MDEU|  |PKEU| ...  |RNG |
+ *    -------   |          |   ------  ------  ------  ------      ------
+ * ---| ch2 |---|          |      |       |       |       |           |
+ *    -------   |          |      |       |       |       |           |
+ *              |          |------+-------+-------+-------+------------
+ *    -------   |          |
+ * ---| ch3 |---|          |
+ *    -------   ------------
+ *
+ * Channel ch0 may drive an aes operation to the aes unit (AESU),
+ * and, at the same time, ch1 may drive a message digest operation
+ * to the mdeu. Each channel has an input descriptor FIFO, and the 
+ * FIFO can contain, e.g. on the 8541E, up to 24 entries, before a
+ * a buffer overrun error is triggered. The controller is responsible
+ * for fetching the data from descriptor pointers, and passing the 
+ * data to the appropriate EUs. The controller also writes the 
+ * cryptographic operation's result to memory. The SEC notifies 
+ * completion by triggering an interrupt and/or setting the 1st byte 
+ * of the hdr field to 0xff.
+ *
+ * TODO:
+ * o support more algorithms
+ * o support more versions of the SEC
+ * o add support for linux 2.4
+ * o scatter-gather (sg) support
+ * o add support for public key ops (PKEU)
+ * o add statistics
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/random.h>
+#include <linux/skbuff.h>
+#include <asm/scatterlist.h>
+#include <linux/dma-mapping.h>  /* dma_map_single() */
+#include <linux/moduleparam.h>
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,15)
+#include <linux/platform_device.h>
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+#include <linux/of_platform.h>
+#endif
+
+#include <cryptodev.h>
+#include <uio.h>
+
+#define DRV_NAME "talitos" 
+
+#include "talitos_dev.h"
+#include "talitos_soft.h"
+
+#define read_random(p,l) get_random_bytes(p,l)
+
+const char talitos_driver_name[] = "Talitos OCF";
+const char talitos_driver_version[] = "0.2";
+
+static int talitos_newsession(device_t dev, u_int32_t *sidp,
+                                                               struct cryptoini *cri);
+static int talitos_freesession(device_t dev, u_int64_t tid);
+static int talitos_process(device_t dev, struct cryptop *crp, int hint);
+static void dump_talitos_status(struct talitos_softc *sc);
+static int talitos_submit(struct talitos_softc *sc, struct talitos_desc *td, 
+                                                               int chsel);
+static void talitos_doneprocessing(struct talitos_softc *sc);
+static void talitos_init_device(struct talitos_softc *sc);
+static void talitos_reset_device_master(struct talitos_softc *sc);
+static void talitos_reset_device(struct talitos_softc *sc);
+static void talitos_errorprocessing(struct talitos_softc *sc);
+#ifdef CONFIG_PPC_MERGE
+static int talitos_probe(struct of_device *ofdev, const struct of_device_id *match);
+static int talitos_remove(struct of_device *ofdev);
+#else
+static int talitos_probe(struct platform_device *pdev);
+static int talitos_remove(struct platform_device *pdev);
+#endif
+#ifdef CONFIG_OCF_RANDOMHARVEST
+static int talitos_read_random(void *arg, u_int32_t *buf, int maxwords);
+static void talitos_rng_init(struct talitos_softc *sc);
+#endif
+
+static device_method_t talitos_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, talitos_newsession),
+       DEVMETHOD(cryptodev_freesession,talitos_freesession),
+       DEVMETHOD(cryptodev_process,    talitos_process),
+};
+
+#define debug talitos_debug
+int talitos_debug = 0;
+module_param(talitos_debug, int, 0644);
+MODULE_PARM_DESC(talitos_debug, "Enable debug");
+
+static inline void talitos_write(volatile unsigned *addr, u32 val)
+{
+        out_be32(addr, val);
+}
+
+static inline u32 talitos_read(volatile unsigned *addr)
+{
+        u32 val;
+        val = in_be32(addr);
+        return val;
+}
+
+static void dump_talitos_status(struct talitos_softc *sc)
+{
+       unsigned int v, v_hi, i, *ptr;
+       v = talitos_read(sc->sc_base_addr + TALITOS_MCR);
+       v_hi = talitos_read(sc->sc_base_addr + TALITOS_MCR_HI);
+       printk(KERN_INFO "%s: MCR          0x%08x_%08x\n",
+                       device_get_nameunit(sc->sc_cdev), v, v_hi);
+       v = talitos_read(sc->sc_base_addr + TALITOS_IMR);
+       v_hi = talitos_read(sc->sc_base_addr + TALITOS_IMR_HI);
+       printk(KERN_INFO "%s: IMR          0x%08x_%08x\n",
+                       device_get_nameunit(sc->sc_cdev), v, v_hi);
+       v = talitos_read(sc->sc_base_addr + TALITOS_ISR);
+       v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI);
+       printk(KERN_INFO "%s: ISR          0x%08x_%08x\n",
+                       device_get_nameunit(sc->sc_cdev), v, v_hi);
+       for (i = 0; i < sc->sc_num_channels; i++) { 
+               v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+                       TALITOS_CH_CDPR);
+               v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+                       TALITOS_CH_CDPR_HI);
+               printk(KERN_INFO "%s: CDPR     ch%d 0x%08x_%08x\n", 
+                               device_get_nameunit(sc->sc_cdev), i, v, v_hi);
+       }
+       for (i = 0; i < sc->sc_num_channels; i++) { 
+               v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+                       TALITOS_CH_CCPSR);
+               v_hi = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET + 
+                       TALITOS_CH_CCPSR_HI);
+               printk(KERN_INFO "%s: CCPSR    ch%d 0x%08x_%08x\n", 
+                               device_get_nameunit(sc->sc_cdev), i, v, v_hi);
+       }
+       ptr = sc->sc_base_addr + TALITOS_CH_DESCBUF;
+       for (i = 0; i < 16; i++) { 
+               v = talitos_read(ptr++); v_hi = talitos_read(ptr++);
+               printk(KERN_INFO "%s: DESCBUF  ch0 0x%08x_%08x (tdp%02d)\n", 
+                               device_get_nameunit(sc->sc_cdev), v, v_hi, i);
+       }
+       return;
+}
+
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+/* 
+ * pull random numbers off the RNG FIFO, not exceeding amount available
+ */
+static int
+talitos_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+       struct talitos_softc *sc = (struct talitos_softc *) arg;
+       int rc;
+       u_int32_t v;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /* check for things like FIFO underflow */
+       v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI);
+       if (unlikely(v)) {
+               printk(KERN_ERR "%s: RNGISR_HI error %08x\n",
+                               device_get_nameunit(sc->sc_cdev), v);
+               return 0;
+       }
+       /*
+        * OFL is number of available 64-bit words, 
+        * shift and convert to a 32-bit word count
+        */
+       v = talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI);
+       v = (v & TALITOS_RNGSR_HI_OFL) >> (16 - 1);
+       if (maxwords > v)
+               maxwords = v;
+       for (rc = 0; rc < maxwords; rc++) {
+               buf[rc] = talitos_read(sc->sc_base_addr + 
+                       TALITOS_RNG_FIFO + rc*sizeof(u_int32_t));
+       }
+       if (maxwords & 1) {
+               /* 
+                * RNG will complain with an AE in the RNGISR
+                * if we don't complete the pairs of 32-bit reads
+                * to its 64-bit register based FIFO
+                */
+               v = talitos_read(sc->sc_base_addr + 
+                       TALITOS_RNG_FIFO + rc*sizeof(u_int32_t));
+       }
+
+       return rc;
+}
+
+static void
+talitos_rng_init(struct talitos_softc *sc)
+{
+       u_int32_t v;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       /* reset RNG EU */
+       v = talitos_read(sc->sc_base_addr + TALITOS_RNGRCR_HI);
+       v |= TALITOS_RNGRCR_HI_SR;
+       talitos_write(sc->sc_base_addr + TALITOS_RNGRCR_HI, v);
+       while ((talitos_read(sc->sc_base_addr + TALITOS_RNGSR_HI) 
+               & TALITOS_RNGSR_HI_RD) == 0)
+                       cpu_relax();
+       /*
+        * we tell the RNG to start filling the RNG FIFO
+        * by writing the RNGDSR 
+        */
+       v = talitos_read(sc->sc_base_addr + TALITOS_RNGDSR_HI);
+       talitos_write(sc->sc_base_addr + TALITOS_RNGDSR_HI, v);
+       /*
+        * 64 bits of data will be pushed onto the FIFO every 
+        * 256 SEC cycles until the FIFO is full.  The RNG then 
+        * attempts to keep the FIFO full.
+        */
+       v = talitos_read(sc->sc_base_addr + TALITOS_RNGISR_HI);
+       if (v) {
+               printk(KERN_ERR "%s: RNGISR_HI error %08x\n",
+                       device_get_nameunit(sc->sc_cdev), v);
+               return;
+       }
+       /*
+        * n.b. we need to add a FIPS test here - if the RNG is going 
+        * to fail, it's going to fail at reset time
+        */
+       return;
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+/*
+ * Generate a new software session.
+ */
+static int
+talitos_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+       struct cryptoini *c, *encini = NULL, *macini = NULL;
+       struct talitos_softc *sc = device_get_softc(dev);
+       struct talitos_session *ses = NULL;
+       int sesn;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       if (sidp == NULL || cri == NULL || sc == NULL) {
+               DPRINTF("%s,%d - EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+       for (c = cri; c != NULL; c = c->cri_next) {
+               if (c->cri_alg == CRYPTO_MD5 ||
+                   c->cri_alg == CRYPTO_MD5_HMAC ||
+                   c->cri_alg == CRYPTO_SHA1 ||
+                   c->cri_alg == CRYPTO_SHA1_HMAC ||
+                   c->cri_alg == CRYPTO_NULL_HMAC) {
+                       if (macini)
+                               return EINVAL;
+                       macini = c;
+               } else if (c->cri_alg == CRYPTO_DES_CBC ||
+                   c->cri_alg == CRYPTO_3DES_CBC ||
+                   c->cri_alg == CRYPTO_AES_CBC ||
+                   c->cri_alg == CRYPTO_NULL_CBC) {
+                       if (encini)
+                               return EINVAL;
+                       encini = c;
+               } else {
+                       DPRINTF("UNKNOWN c->cri_alg %d\n", encini->cri_alg);
+                       return EINVAL;
+               }
+       }
+       if (encini == NULL && macini == NULL)
+               return EINVAL;
+       if (encini) {   
+               /* validate key length */
+               switch (encini->cri_alg) {
+               case CRYPTO_DES_CBC:
+                       if (encini->cri_klen != 64)
+                               return EINVAL;
+                       break;
+               case CRYPTO_3DES_CBC:
+                       if (encini->cri_klen != 192) {
+                               return EINVAL;
+                       }
+                       break;
+               case CRYPTO_AES_CBC:
+                       if (encini->cri_klen != 128 &&
+                           encini->cri_klen != 192 &&
+                           encini->cri_klen != 256)
+                               return EINVAL;
+                       break;
+               default:
+                       DPRINTF("UNKNOWN encini->cri_alg %d\n", 
+                               encini->cri_alg);
+                       return EINVAL;
+               }
+       }
+
+       if (sc->sc_sessions == NULL) {
+               ses = sc->sc_sessions = (struct talitos_session *)
+                       kmalloc(sizeof(struct talitos_session), SLAB_ATOMIC);
+               if (ses == NULL)
+                       return ENOMEM;
+               memset(ses, 0, sizeof(struct talitos_session));
+               sesn = 0;
+               sc->sc_nsessions = 1;
+       } else {
+               for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+                       if (sc->sc_sessions[sesn].ses_used == 0) {
+                               ses = &sc->sc_sessions[sesn];
+                               break;
+                       }
+               }
+
+               if (ses == NULL) {
+                       /* allocating session */
+                       sesn = sc->sc_nsessions;
+                       ses = (struct talitos_session *) kmalloc(
+                               (sesn + 1) * sizeof(struct talitos_session), 
+                               SLAB_ATOMIC);
+                       if (ses == NULL)
+                               return ENOMEM;
+                       memset(ses, 0,
+                               (sesn + 1) * sizeof(struct talitos_session));
+                       memcpy(ses, sc->sc_sessions, 
+                               sesn * sizeof(struct talitos_session));
+                       memset(sc->sc_sessions, 0,
+                               sesn * sizeof(struct talitos_session));
+                       kfree(sc->sc_sessions);
+                       sc->sc_sessions = ses;
+                       ses = &sc->sc_sessions[sesn];
+                       sc->sc_nsessions++;
+               }
+       }
+
+       ses->ses_used = 1;
+
+       if (encini) {
+               /* get an IV */
+               /* XXX may read fewer than requested */
+               read_random(ses->ses_iv, sizeof(ses->ses_iv));
+
+               ses->ses_klen = (encini->cri_klen + 7) / 8;
+               memcpy(ses->ses_key, encini->cri_key, ses->ses_klen);
+               if (macini) {
+                       /* doing hash on top of cipher */
+                       ses->ses_hmac_len = (macini->cri_klen + 7) / 8;
+                       memcpy(ses->ses_hmac, macini->cri_key,
+                               ses->ses_hmac_len);
+               }
+       } else if (macini) {
+               /* doing hash */
+               ses->ses_klen = (macini->cri_klen + 7) / 8;
+               memcpy(ses->ses_key, macini->cri_key, ses->ses_klen);
+       }
+
+       /* back compat way of determining MSC result len */
+       if (macini) {
+               ses->ses_mlen = macini->cri_mlen;
+               if (ses->ses_mlen == 0) {
+                       if (macini->cri_alg == CRYPTO_MD5_HMAC)
+                               ses->ses_mlen = MD5_HASH_LEN;
+                       else
+                               ses->ses_mlen = SHA1_HASH_LEN;
+               }
+       }
+
+       /* really should make up a template td here, 
+        * and only fill things like i/o and direction in process() */
+
+       /* assign session ID */
+       *sidp = TALITOS_SID(sc->sc_num, sesn);
+       return 0;
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+talitos_freesession(device_t dev, u_int64_t tid)
+{
+       struct talitos_softc *sc = device_get_softc(dev);
+       int session, ret;
+       u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+       if (sc == NULL)
+               return EINVAL;
+       session = TALITOS_SESSION(sid);
+       if (session < sc->sc_nsessions) {
+               memset(&sc->sc_sessions[session], 0,
+                       sizeof(sc->sc_sessions[session]));
+               ret = 0;
+       } else
+               ret = EINVAL;
+       return ret;
+}
+
+/*
+ * launch device processing - it will come back with done notification 
+ * in the form of an interrupt and/or HDR_DONE_BITS in header 
+ */
+static int 
+talitos_submit(
+       struct talitos_softc *sc,
+       struct talitos_desc *td,
+       int chsel)
+{
+       u_int32_t v;
+
+       v = dma_map_single(NULL, td, sizeof(*td), DMA_TO_DEVICE);
+       talitos_write(sc->sc_base_addr + 
+               chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF, 0);
+       talitos_write(sc->sc_base_addr + 
+               chsel*TALITOS_CH_OFFSET + TALITOS_CH_FF_HI, v);
+       return 0;
+}
+
+static int
+talitos_process(device_t dev, struct cryptop *crp, int hint)
+{
+       int i, err = 0, ivsize;
+       struct talitos_softc *sc = device_get_softc(dev);
+       struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+       caddr_t iv;
+       struct talitos_session *ses;
+       struct talitos_desc *td;
+       unsigned long flags;
+       /* descriptor mappings */
+       int hmac_key, hmac_data, cipher_iv, cipher_key, 
+               in_fifo, out_fifo, cipher_iv_out;
+       static int chsel = -1;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (crp == NULL || crp->crp_callback == NULL || sc == NULL) {
+               return EINVAL;
+       }
+       crp->crp_etype = 0;
+       if (TALITOS_SESSION(crp->crp_sid) >= sc->sc_nsessions) {
+               return EINVAL;
+       }
+
+       ses = &sc->sc_sessions[TALITOS_SESSION(crp->crp_sid)];
+
+        /* enter the channel scheduler */ 
+       spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+       /* reuse channel that already had/has requests for the required EU */
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               if (sc->sc_chnlastalg[i] == crp->crp_desc->crd_alg)
+                       break;
+       }
+       if (i == sc->sc_num_channels) {
+               /*
+                * haven't seen this algo the last sc_num_channels or more
+                * use round robin in this case
+                * nb: sc->sc_num_channels must be power of 2 
+                */
+               chsel = (chsel + 1) & (sc->sc_num_channels - 1);
+       } else {
+               /*
+                * matches channel with same target execution unit; 
+                * use same channel in this case
+                */
+               chsel = i;
+       }
+       sc->sc_chnlastalg[chsel] = crp->crp_desc->crd_alg;
+
+        /* release the channel scheduler lock */ 
+       spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+       /* acquire the selected channel fifo lock */
+       spin_lock_irqsave(&sc->sc_chnfifolock[chsel], flags);
+
+       /* find and reserve next available descriptor-cryptop pair */
+       for (i = 0; i < sc->sc_chfifo_len; i++) {
+               if (sc->sc_chnfifo[chsel][i].cf_desc.hdr == 0) {
+                       /* 
+                        * ensure correct descriptor formation by
+                        * avoiding inadvertently setting "optional" entries
+                        * e.g. not using "optional" dptr2 for MD/HMAC descs
+                        */
+                       memset(&sc->sc_chnfifo[chsel][i].cf_desc,
+                               0, sizeof(*td));
+                       /* reserve it with done notification request bit */
+                       sc->sc_chnfifo[chsel][i].cf_desc.hdr |= 
+                               TALITOS_DONE_NOTIFY;
+                       break;
+               }
+       }
+       spin_unlock_irqrestore(&sc->sc_chnfifolock[chsel], flags);
+
+       if (i == sc->sc_chfifo_len) {
+               /* fifo full */
+               err = ERESTART;
+               goto errout;
+       }
+       
+       td = &sc->sc_chnfifo[chsel][i].cf_desc;
+       sc->sc_chnfifo[chsel][i].cf_crp = crp;
+
+       crd1 = crp->crp_desc;
+       if (crd1 == NULL) {
+               err = EINVAL;
+               goto errout;
+       }
+       crd2 = crd1->crd_next;
+       /* prevent compiler warning */
+       hmac_key = 0;
+       hmac_data = 0;
+       if (crd2 == NULL) {
+               td->hdr |= TD_TYPE_COMMON_NONSNOOP_NO_AFEU;
+               /* assign descriptor dword ptr mappings for this desc. type */
+               cipher_iv = 1;
+               cipher_key = 2;
+               in_fifo = 3;
+               cipher_iv_out = 5;
+               if (crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                   crd1->crd_alg == CRYPTO_SHA1 ||
+                   crd1->crd_alg == CRYPTO_MD5) {
+                       out_fifo = 5;
+                       maccrd = crd1;
+                       enccrd = NULL;
+               } else if (crd1->crd_alg == CRYPTO_DES_CBC ||
+                   crd1->crd_alg == CRYPTO_3DES_CBC ||
+                   crd1->crd_alg == CRYPTO_AES_CBC ||
+                   crd1->crd_alg == CRYPTO_ARC4) {
+                       out_fifo = 4;
+                       maccrd = NULL;
+                       enccrd = crd1;
+               } else {
+                       DPRINTF("UNKNOWN crd1->crd_alg %d\n", crd1->crd_alg);
+                       err = EINVAL;
+                       goto errout;
+               }
+       } else {
+               if (sc->sc_desc_types & TALITOS_HAS_DT_IPSEC_ESP) {
+                       td->hdr |= TD_TYPE_IPSEC_ESP;
+               } else {
+                       DPRINTF("unimplemented: multiple descriptor ipsec\n");
+                       err = EINVAL;
+                       goto errout;
+               }
+               /* assign descriptor dword ptr mappings for this desc. type */
+               hmac_key = 0;
+               hmac_data = 1;
+               cipher_iv = 2;
+               cipher_key = 3;
+               in_fifo = 4;
+               out_fifo = 5;
+               cipher_iv_out = 6;
+               if ((crd1->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd1->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd1->crd_alg == CRYPTO_MD5 ||
+                     crd1->crd_alg == CRYPTO_SHA1) &&
+                   (crd2->crd_alg == CRYPTO_DES_CBC ||
+                    crd2->crd_alg == CRYPTO_3DES_CBC ||
+                    crd2->crd_alg == CRYPTO_AES_CBC ||
+                    crd2->crd_alg == CRYPTO_ARC4) &&
+                   ((crd2->crd_flags & CRD_F_ENCRYPT) == 0)) {
+                       maccrd = crd1;
+                       enccrd = crd2;
+               } else if ((crd1->crd_alg == CRYPTO_DES_CBC ||
+                    crd1->crd_alg == CRYPTO_ARC4 ||
+                    crd1->crd_alg == CRYPTO_3DES_CBC ||
+                    crd1->crd_alg == CRYPTO_AES_CBC) &&
+                   (crd2->crd_alg == CRYPTO_MD5_HMAC ||
+                     crd2->crd_alg == CRYPTO_SHA1_HMAC ||
+                     crd2->crd_alg == CRYPTO_MD5 ||
+                     crd2->crd_alg == CRYPTO_SHA1) &&
+                   (crd1->crd_flags & CRD_F_ENCRYPT)) {
+                       enccrd = crd1;
+                       maccrd = crd2;
+               } else {
+                       /* We cannot order the SEC as requested */
+                       printk("%s: cannot do the order\n",
+                                       device_get_nameunit(sc->sc_cdev));
+                       err = EINVAL;
+                       goto errout;
+               }
+       }
+       /* assign in_fifo and out_fifo based on input/output struct type */
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               /* using SKB buffers */
+               struct sk_buff *skb = (struct sk_buff *)crp->crp_buf;
+               if (skb_shinfo(skb)->nr_frags) {
+                       printk("%s: skb frags unimplemented\n",
+                                       device_get_nameunit(sc->sc_cdev));
+                       err = EINVAL;
+                       goto errout;
+               }
+               td->ptr[in_fifo].ptr = dma_map_single(NULL, skb->data, 
+                       skb->len, DMA_TO_DEVICE);
+               td->ptr[in_fifo].len = skb->len;
+               td->ptr[out_fifo].ptr = dma_map_single(NULL, skb->data, 
+                       skb->len, DMA_TO_DEVICE);
+               td->ptr[out_fifo].len = skb->len;
+               td->ptr[hmac_data].ptr = dma_map_single(NULL, skb->data,
+                       skb->len, DMA_TO_DEVICE);
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               /* using IOV buffers */
+               struct uio *uiop = (struct uio *)crp->crp_buf;
+               if (uiop->uio_iovcnt > 1) {
+                       printk("%s: iov frags unimplemented\n",
+                                       device_get_nameunit(sc->sc_cdev));
+                       err = EINVAL;
+                       goto errout;
+               }
+               td->ptr[in_fifo].ptr = dma_map_single(NULL,
+                       uiop->uio_iov->iov_base, crp->crp_ilen, DMA_TO_DEVICE);
+               td->ptr[in_fifo].len = crp->crp_ilen;
+               /* crp_olen is never set; always use crp_ilen */
+               td->ptr[out_fifo].ptr = dma_map_single(NULL,
+                       uiop->uio_iov->iov_base,
+                       crp->crp_ilen, DMA_TO_DEVICE);
+               td->ptr[out_fifo].len = crp->crp_ilen;
+       } else {
+               /* using contig buffers */
+               td->ptr[in_fifo].ptr = dma_map_single(NULL,
+                       crp->crp_buf, crp->crp_ilen, DMA_TO_DEVICE);
+               td->ptr[in_fifo].len = crp->crp_ilen;
+               td->ptr[out_fifo].ptr = dma_map_single(NULL,
+                       crp->crp_buf, crp->crp_ilen, DMA_TO_DEVICE);
+               td->ptr[out_fifo].len = crp->crp_ilen;
+       }
+       if (enccrd) {
+               switch (enccrd->crd_alg) {
+               case CRYPTO_3DES_CBC:
+                       td->hdr |= TALITOS_MODE0_DEU_3DES;
+                       /* FALLTHROUGH */
+               case CRYPTO_DES_CBC:
+                       td->hdr |= TALITOS_SEL0_DEU
+                               |  TALITOS_MODE0_DEU_CBC;
+                       if (enccrd->crd_flags & CRD_F_ENCRYPT)
+                               td->hdr |= TALITOS_MODE0_DEU_ENC;
+                       ivsize = 2*sizeof(u_int32_t);
+                       DPRINTF("%cDES ses %d ch %d len %d\n",
+                               (td->hdr & TALITOS_MODE0_DEU_3DES)?'3':'1',
+                               (u32)TALITOS_SESSION(crp->crp_sid),
+                               chsel, td->ptr[in_fifo].len);
+                       break;
+               case CRYPTO_AES_CBC:
+                       td->hdr |= TALITOS_SEL0_AESU
+                               |  TALITOS_MODE0_AESU_CBC;
+                       if (enccrd->crd_flags & CRD_F_ENCRYPT)
+                               td->hdr |= TALITOS_MODE0_AESU_ENC;
+                       ivsize = 4*sizeof(u_int32_t);
+                       DPRINTF("AES  ses %d ch %d len %d\n",
+                               (u32)TALITOS_SESSION(crp->crp_sid),
+                               chsel, td->ptr[in_fifo].len);
+                       break;
+               default:
+                       printk("%s: unimplemented enccrd->crd_alg %d\n",
+                                       device_get_nameunit(sc->sc_cdev), enccrd->crd_alg);
+                       err = EINVAL;
+                       goto errout;
+               }
+               /*
+                * Setup encrypt/decrypt state.  When using basic ops
+                * we can't use an inline IV because hash/crypt offset
+                * must be from the end of the IV to the start of the
+                * crypt data and this leaves out the preceding header
+                * from the hash calculation.  Instead we place the IV
+                * in the state record and set the hash/crypt offset to
+                * copy both the header+IV.
+                */
+               if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+                       td->hdr |= TALITOS_DIR_OUTBOUND; 
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                               iv = enccrd->crd_iv;
+                       else
+                               iv = (caddr_t) ses->ses_iv;
+                       if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+                               crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                   enccrd->crd_inject, ivsize, iv);
+                       }
+               } else {
+                       td->hdr |= TALITOS_DIR_INBOUND; 
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+                               iv = enccrd->crd_iv;
+                               bcopy(enccrd->crd_iv, iv, ivsize);
+                       } else {
+                               iv = (caddr_t) ses->ses_iv;
+                               crypto_copydata(crp->crp_flags, crp->crp_buf,
+                                   enccrd->crd_inject, ivsize, iv);
+                       }
+               }
+               td->ptr[cipher_iv].ptr = dma_map_single(NULL, iv, ivsize, 
+                       DMA_TO_DEVICE);
+               td->ptr[cipher_iv].len = ivsize;
+               /*
+                * we don't need the cipher iv out length/pointer
+                * field to do ESP IPsec. Therefore we set the len field as 0,
+                * which tells the SEC not to do anything with this len/ptr
+                * field. Previously, when length/pointer as pointing to iv,
+                * it gave us corruption of packets.
+                */
+               td->ptr[cipher_iv_out].len = 0;
+       }
+       if (enccrd && maccrd) {
+               /* this is ipsec only for now */
+               td->hdr |= TALITOS_SEL1_MDEU
+                       |  TALITOS_MODE1_MDEU_INIT
+                       |  TALITOS_MODE1_MDEU_PAD;
+               switch (maccrd->crd_alg) {
+                       case    CRYPTO_MD5:     
+                               td->hdr |= TALITOS_MODE1_MDEU_MD5;
+                               break;
+                       case    CRYPTO_MD5_HMAC:        
+                               td->hdr |= TALITOS_MODE1_MDEU_MD5_HMAC;
+                               break;
+                       case    CRYPTO_SHA1:    
+                               td->hdr |= TALITOS_MODE1_MDEU_SHA1;
+                               break;
+                       case    CRYPTO_SHA1_HMAC:       
+                               td->hdr |= TALITOS_MODE1_MDEU_SHA1_HMAC;
+                               break;
+                       default:
+                               /* We cannot order the SEC as requested */
+                               printk("%s: cannot do the order\n",
+                                               device_get_nameunit(sc->sc_cdev));
+                               err = EINVAL;
+                               goto errout;
+               }
+               if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) ||
+                  (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) {
+                       /*
+                        * The offset from hash data to the start of
+                        * crypt data is the difference in the skips.
+                        */
+                       /* ipsec only for now */
+                       td->ptr[hmac_key].ptr = dma_map_single(NULL, 
+                               ses->ses_hmac, ses->ses_hmac_len, DMA_TO_DEVICE);
+                       td->ptr[hmac_key].len = ses->ses_hmac_len;
+                       td->ptr[in_fifo].ptr  += enccrd->crd_skip;
+                       td->ptr[in_fifo].len  =  enccrd->crd_len;
+                       td->ptr[out_fifo].ptr += enccrd->crd_skip;
+                       td->ptr[out_fifo].len =  enccrd->crd_len;
+                       /* bytes of HMAC to postpend to ciphertext */
+                       td->ptr[out_fifo].extent =  ses->ses_mlen;
+                       td->ptr[hmac_data].ptr += maccrd->crd_skip; 
+                       td->ptr[hmac_data].len = enccrd->crd_skip - maccrd->crd_skip;
+               }
+               if (enccrd->crd_flags & CRD_F_KEY_EXPLICIT) {
+                       printk("%s: CRD_F_KEY_EXPLICIT unimplemented\n",
+                                       device_get_nameunit(sc->sc_cdev));
+               }
+       }
+       if (!enccrd && maccrd) {
+               /* single MD5 or SHA */
+               td->hdr |= TALITOS_SEL0_MDEU
+                               |  TALITOS_MODE0_MDEU_INIT
+                               |  TALITOS_MODE0_MDEU_PAD;
+               switch (maccrd->crd_alg) {
+                       case    CRYPTO_MD5:     
+                               td->hdr |= TALITOS_MODE0_MDEU_MD5;
+                               DPRINTF("MD5  ses %d ch %d len %d\n",
+                                       (u32)TALITOS_SESSION(crp->crp_sid), 
+                                       chsel, td->ptr[in_fifo].len);
+                               break;
+                       case    CRYPTO_MD5_HMAC:        
+                               td->hdr |= TALITOS_MODE0_MDEU_MD5_HMAC;
+                               break;
+                       case    CRYPTO_SHA1:    
+                               td->hdr |= TALITOS_MODE0_MDEU_SHA1;
+                               DPRINTF("SHA1 ses %d ch %d len %d\n",
+                                       (u32)TALITOS_SESSION(crp->crp_sid), 
+                                       chsel, td->ptr[in_fifo].len);
+                               break;
+                       case    CRYPTO_SHA1_HMAC:       
+                               td->hdr |= TALITOS_MODE0_MDEU_SHA1_HMAC;
+                               break;
+                       default:
+                               /* We cannot order the SEC as requested */
+                               DPRINTF("cannot do the order\n");
+                               err = EINVAL;
+                               goto errout;
+               }
+
+               if (crp->crp_flags & CRYPTO_F_IOV)
+                       td->ptr[out_fifo].ptr += maccrd->crd_inject;
+
+               if ((maccrd->crd_alg == CRYPTO_MD5_HMAC) ||
+                  (maccrd->crd_alg == CRYPTO_SHA1_HMAC)) {
+                       td->ptr[hmac_key].ptr = dma_map_single(NULL, 
+                               ses->ses_hmac, ses->ses_hmac_len, 
+                               DMA_TO_DEVICE);
+                       td->ptr[hmac_key].len = ses->ses_hmac_len;
+               }
+       } 
+       else {
+               /* using process key (session data has duplicate) */
+               td->ptr[cipher_key].ptr = dma_map_single(NULL, 
+                       enccrd->crd_key, (enccrd->crd_klen + 7) / 8, 
+                       DMA_TO_DEVICE);
+               td->ptr[cipher_key].len = (enccrd->crd_klen + 7) / 8;
+       }
+       /* descriptor complete - GO! */
+       return talitos_submit(sc, td, chsel);
+
+errout:
+       if (err != ERESTART) {
+               crp->crp_etype = err;
+               crypto_done(crp);
+       }
+       return err;
+}
+
+/* go through all channels descriptors, notifying OCF what has 
+ * _and_hasn't_ successfully completed and reset the device 
+ * (otherwise it's up to decoding desc hdrs!)
+ */
+static void talitos_errorprocessing(struct talitos_softc *sc)
+{
+       unsigned long flags;
+       int i, j;
+
+       /* disable further scheduling until under control */
+       spin_lock_irqsave(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+       if (debug) dump_talitos_status(sc);
+       /* go through descriptors, try and salvage those successfully done, 
+        * and EIO those that weren't
+        */
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               spin_lock_irqsave(&sc->sc_chnfifolock[i], flags);
+               for (j = 0; j < sc->sc_chfifo_len; j++) {
+                       if (sc->sc_chnfifo[i][j].cf_desc.hdr) {
+                               if ((sc->sc_chnfifo[i][j].cf_desc.hdr 
+                                       & TALITOS_HDR_DONE_BITS) 
+                                       != TALITOS_HDR_DONE_BITS) {
+                                       /* this one didn't finish */
+                                       /* signify in crp->etype */
+                                       sc->sc_chnfifo[i][j].cf_crp->crp_etype 
+                                               = EIO;
+                               }
+                       } else
+                               continue; /* free entry */
+                       /* either way, notify ocf */
+                       crypto_done(sc->sc_chnfifo[i][j].cf_crp);
+                       /* and tag it available again
+                        *
+                        * memset to ensure correct descriptor formation by
+                        * avoiding inadvertently setting "optional" entries
+                        * e.g. not using "optional" dptr2 MD/HMAC processing
+                        */
+                       memset(&sc->sc_chnfifo[i][j].cf_desc,
+                               0, sizeof(struct talitos_desc));
+               }
+               spin_unlock_irqrestore(&sc->sc_chnfifolock[i], flags);
+       }
+       /* reset and initialize the SEC h/w device */
+       talitos_reset_device(sc);
+       talitos_init_device(sc);
+#ifdef CONFIG_OCF_RANDOMHARVEST
+       if (sc->sc_exec_units & TALITOS_HAS_EU_RNG)
+               talitos_rng_init(sc);
+#endif
+
+       /* Okay. Stand by. */
+       spin_unlock_irqrestore(&sc->sc_chnfifolock[sc->sc_num_channels], flags);
+
+       return;
+}
+
+/* go through all channels descriptors, notifying OCF what's been done */
+static void talitos_doneprocessing(struct talitos_softc *sc)
+{
+       unsigned long flags;
+       int i, j;
+
+       /* go through descriptors looking for done bits */
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               spin_lock_irqsave(&sc->sc_chnfifolock[i], flags);
+               for (j = 0; j < sc->sc_chfifo_len; j++) {
+                       /* descriptor has done bits set? */
+                       if ((sc->sc_chnfifo[i][j].cf_desc.hdr 
+                               & TALITOS_HDR_DONE_BITS) 
+                               == TALITOS_HDR_DONE_BITS) {
+                               /* notify ocf */
+                               crypto_done(sc->sc_chnfifo[i][j].cf_crp);
+                               /* and tag it available again
+                                *
+                                * memset to ensure correct descriptor formation by
+                                * avoiding inadvertently setting "optional" entries
+                                * e.g. not using "optional" dptr2 MD/HMAC processing
+                                */
+                               memset(&sc->sc_chnfifo[i][j].cf_desc,
+                                       0, sizeof(struct talitos_desc));
+                       }
+               }
+               spin_unlock_irqrestore(&sc->sc_chnfifolock[i], flags);
+       }
+       return;
+}
+
+static irqreturn_t
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,19)
+talitos_intr(int irq, void *arg)
+#else
+talitos_intr(int irq, void *arg, struct pt_regs *regs)
+#endif
+{
+       struct talitos_softc *sc = arg;
+       u_int32_t v, v_hi;
+       
+       /* ack */
+       v = talitos_read(sc->sc_base_addr + TALITOS_ISR);
+       v_hi = talitos_read(sc->sc_base_addr + TALITOS_ISR_HI);
+       talitos_write(sc->sc_base_addr + TALITOS_ICR, v);
+       talitos_write(sc->sc_base_addr + TALITOS_ICR_HI, v_hi);
+
+       if (unlikely(v & TALITOS_ISR_ERROR)) {
+               /* Okay, Houston, we've had a problem here. */
+               printk(KERN_DEBUG "%s: got error interrupt - ISR 0x%08x_%08x\n",
+                               device_get_nameunit(sc->sc_cdev), v, v_hi);
+               talitos_errorprocessing(sc);
+       } else
+       if (likely(v & TALITOS_ISR_DONE)) {
+               talitos_doneprocessing(sc);
+       }
+       return IRQ_HANDLED;
+}
+
+/*
+ * Initialize registers we need to touch only once.
+ */
+static void
+talitos_init_device(struct talitos_softc *sc)
+{
+       u_int32_t v;
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /* init all channels */
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               v = talitos_read(sc->sc_base_addr + 
+                       i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI);
+               v |= TALITOS_CH_CCCR_HI_CDWE
+                 |  TALITOS_CH_CCCR_HI_CDIE;  /* invoke interrupt if done */
+               talitos_write(sc->sc_base_addr + 
+                       i*TALITOS_CH_OFFSET + TALITOS_CH_CCCR_HI, v);
+       }
+       /* enable all interrupts */
+       v = talitos_read(sc->sc_base_addr + TALITOS_IMR);
+       v |= TALITOS_IMR_ALL;
+       talitos_write(sc->sc_base_addr + TALITOS_IMR, v);
+       v = talitos_read(sc->sc_base_addr + TALITOS_IMR_HI);
+       v |= TALITOS_IMR_HI_ERRONLY;
+       talitos_write(sc->sc_base_addr + TALITOS_IMR_HI, v);
+       return;
+}
+
+/*
+ * set the master reset bit on the device.
+ */
+static void
+talitos_reset_device_master(struct talitos_softc *sc)
+{
+       u_int32_t v;
+
+       /* Reset the device by writing 1 to MCR:SWR and waiting 'til cleared */
+       v = talitos_read(sc->sc_base_addr + TALITOS_MCR);
+       talitos_write(sc->sc_base_addr + TALITOS_MCR, v | TALITOS_MCR_SWR);
+
+       while (talitos_read(sc->sc_base_addr + TALITOS_MCR) & TALITOS_MCR_SWR)
+               cpu_relax();
+
+       return;
+}
+
+/*
+ * Resets the device.  Values in the registers are left as is
+ * from the reset (i.e. initial values are assigned elsewhere).
+ */
+static void
+talitos_reset_device(struct talitos_softc *sc)
+{
+       u_int32_t v;
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       /*
+        * Master reset
+        * errata documentation: warning: certain SEC interrupts 
+        * are not fully cleared by writing the MCR:SWR bit, 
+        * set bit twice to completely reset 
+        */
+       talitos_reset_device_master(sc);        /* once */
+       talitos_reset_device_master(sc);        /* and once again */
+       
+       /* reset all channels */
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               v = talitos_read(sc->sc_base_addr + i*TALITOS_CH_OFFSET +
+                       TALITOS_CH_CCCR);
+               talitos_write(sc->sc_base_addr + i*TALITOS_CH_OFFSET +
+                       TALITOS_CH_CCCR, v | TALITOS_CH_CCCR_RESET);
+       }
+}
+
+/* Set up the crypto device structure, private data,
+ * and anything else we need before we start */
+#ifdef CONFIG_PPC_MERGE
+static int talitos_probe(struct of_device *ofdev, const struct of_device_id *match)
+#else
+static int talitos_probe(struct platform_device *pdev)
+#endif
+{
+       struct talitos_softc *sc = NULL;
+       struct resource *r;
+#ifdef CONFIG_PPC_MERGE
+       struct device *device = &ofdev->dev;
+       struct device_node *np = ofdev->node;
+       const unsigned int *prop;
+       int err;
+       struct resource res;
+#endif
+       static int num_chips = 0;
+       int rc;
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       sc = (struct talitos_softc *) kmalloc(sizeof(*sc), GFP_KERNEL);
+       if (!sc)
+               return -ENOMEM;
+       memset(sc, 0, sizeof(*sc));
+
+       softc_device_init(sc, DRV_NAME, num_chips, talitos_methods);
+
+       sc->sc_irq = -1;
+       sc->sc_cid = -1;
+#ifndef CONFIG_PPC_MERGE
+       sc->sc_dev = pdev;
+#endif
+       sc->sc_num = num_chips++;
+
+#ifdef CONFIG_PPC_MERGE
+       dev_set_drvdata(device, sc);
+#else
+       platform_set_drvdata(sc->sc_dev, sc);
+#endif
+
+       /* get the irq line */
+#ifdef CONFIG_PPC_MERGE
+       err = of_address_to_resource(np, 0, &res);
+       if (err)
+               return -EINVAL;
+       r = &res;
+
+       sc->sc_irq = irq_of_parse_and_map(np, 0);
+#else
+       /* get a pointer to the register memory */
+       r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+       sc->sc_irq = platform_get_irq(pdev, 0);
+#endif
+       rc = request_irq(sc->sc_irq, talitos_intr, 0,
+                       device_get_nameunit(sc->sc_cdev), sc);
+       if (rc) {
+               printk(KERN_ERR "%s: failed to hook irq %d\n", 
+                               device_get_nameunit(sc->sc_cdev), sc->sc_irq);
+               sc->sc_irq = -1;
+               goto out;
+       }
+
+       sc->sc_base_addr = (ocf_iomem_t) ioremap(r->start, (r->end - r->start));
+       if (!sc->sc_base_addr) {
+               printk(KERN_ERR "%s: failed to ioremap\n",
+                               device_get_nameunit(sc->sc_cdev));
+               goto out;
+       }
+
+       /* figure out our SEC's properties and capabilities */
+       sc->sc_chiprev = (u64)talitos_read(sc->sc_base_addr + TALITOS_ID) << 32
+                | talitos_read(sc->sc_base_addr + TALITOS_ID_HI);
+       DPRINTF("sec id 0x%llx\n", sc->sc_chiprev);
+
+#ifdef CONFIG_PPC_MERGE
+       /* get SEC properties from device tree, defaulting to SEC 2.0 */
+
+       prop = of_get_property(np, "num-channels", NULL);
+       sc->sc_num_channels = prop ? *prop : TALITOS_NCHANNELS_SEC_2_0;
+
+       prop = of_get_property(np, "channel-fifo-len", NULL);
+       sc->sc_chfifo_len = prop ? *prop : TALITOS_CHFIFOLEN_SEC_2_0;
+
+       prop = of_get_property(np, "exec-units-mask", NULL);
+       sc->sc_exec_units = prop ? *prop : TALITOS_HAS_EUS_SEC_2_0;
+
+       prop = of_get_property(np, "descriptor-types-mask", NULL);
+       sc->sc_desc_types = prop ? *prop : TALITOS_HAS_DESCTYPES_SEC_2_0;
+#else
+       /* bulk should go away with openfirmware flat device tree support */
+       if (sc->sc_chiprev & TALITOS_ID_SEC_2_0) {
+               sc->sc_num_channels = TALITOS_NCHANNELS_SEC_2_0;
+               sc->sc_chfifo_len = TALITOS_CHFIFOLEN_SEC_2_0;
+               sc->sc_exec_units = TALITOS_HAS_EUS_SEC_2_0;
+               sc->sc_desc_types = TALITOS_HAS_DESCTYPES_SEC_2_0;
+       } else {
+               printk(KERN_ERR "%s: failed to id device\n",
+                               device_get_nameunit(sc->sc_cdev));
+               goto out;
+       }
+#endif
+
+       /* + 1 is for the meta-channel lock used by the channel scheduler */
+       sc->sc_chnfifolock = (spinlock_t *) kmalloc(
+               (sc->sc_num_channels + 1) * sizeof(spinlock_t), GFP_KERNEL);
+       if (!sc->sc_chnfifolock)
+               goto out;
+       for (i = 0; i < sc->sc_num_channels + 1; i++) {
+               spin_lock_init(&sc->sc_chnfifolock[i]);
+       }
+
+       sc->sc_chnlastalg = (int *) kmalloc(
+               sc->sc_num_channels * sizeof(int), GFP_KERNEL);
+       if (!sc->sc_chnlastalg)
+               goto out;
+       memset(sc->sc_chnlastalg, 0, sc->sc_num_channels * sizeof(int));
+
+       sc->sc_chnfifo = (struct desc_cryptop_pair **) kmalloc(
+               sc->sc_num_channels * sizeof(struct desc_cryptop_pair *), 
+               GFP_KERNEL);
+       if (!sc->sc_chnfifo)
+               goto out;
+       for (i = 0; i < sc->sc_num_channels; i++) {
+               sc->sc_chnfifo[i] = (struct desc_cryptop_pair *) kmalloc(
+                       sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair), 
+                       GFP_KERNEL);
+               if (!sc->sc_chnfifo[i])
+                       goto out;
+               memset(sc->sc_chnfifo[i], 0, 
+                       sc->sc_chfifo_len * sizeof(struct desc_cryptop_pair));
+       }
+
+       /* reset and initialize the SEC h/w device */
+       talitos_reset_device(sc);
+       talitos_init_device(sc);
+
+       sc->sc_cid = crypto_get_driverid(softc_get_device(sc),CRYPTOCAP_F_HARDWARE);
+       if (sc->sc_cid < 0) {
+               printk(KERN_ERR "%s: could not get crypto driver id\n",
+                               device_get_nameunit(sc->sc_cdev));
+               goto out;
+       }
+
+       /* register algorithms with the framework */
+       printk("%s:", device_get_nameunit(sc->sc_cdev));
+
+       if (sc->sc_exec_units & TALITOS_HAS_EU_RNG)  {
+               printk(" rng");
+#ifdef CONFIG_OCF_RANDOMHARVEST
+               talitos_rng_init(sc);
+               crypto_rregister(sc->sc_cid, talitos_read_random, sc);
+#endif
+       }
+       if (sc->sc_exec_units & TALITOS_HAS_EU_DEU) {
+               printk(" des/3des");
+               crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+               crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+       }
+       if (sc->sc_exec_units & TALITOS_HAS_EU_AESU) {
+               printk(" aes");
+               crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+       }
+       if (sc->sc_exec_units & TALITOS_HAS_EU_MDEU) {
+               printk(" md5");
+               crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+               /* HMAC support only with IPsec for now */
+               crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+               printk(" sha1");
+               crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+               /* HMAC support only with IPsec for now */
+               crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+       }
+       printk("\n");
+       return 0;
+
+out:
+#ifndef CONFIG_PPC_MERGE
+       talitos_remove(pdev);
+#endif
+       return -ENOMEM;
+}
+
+#ifdef CONFIG_PPC_MERGE
+static int talitos_remove(struct of_device *ofdev)
+#else
+static int talitos_remove(struct platform_device *pdev)
+#endif
+{
+#ifdef CONFIG_PPC_MERGE
+       struct talitos_softc *sc = dev_get_drvdata(&ofdev->dev);
+#else
+       struct talitos_softc *sc = platform_get_drvdata(pdev);
+#endif
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       if (sc->sc_cid >= 0)
+               crypto_unregister_all(sc->sc_cid);
+       if (sc->sc_chnfifo) {
+               for (i = 0; i < sc->sc_num_channels; i++)
+                       if (sc->sc_chnfifo[i])
+                               kfree(sc->sc_chnfifo[i]);
+               kfree(sc->sc_chnfifo);
+       }
+       if (sc->sc_chnlastalg)
+               kfree(sc->sc_chnlastalg);
+       if (sc->sc_chnfifolock)
+               kfree(sc->sc_chnfifolock);
+       if (sc->sc_irq != -1)
+               free_irq(sc->sc_irq, sc);
+       if (sc->sc_base_addr)
+               iounmap((void *) sc->sc_base_addr);
+       kfree(sc);
+       return 0;
+}
+
+#ifdef CONFIG_PPC_MERGE
+static struct of_device_id talitos_match[] = {
+       {
+               .type = "crypto",
+               .compatible = "talitos",
+       },
+       {},
+};
+
+MODULE_DEVICE_TABLE(of, talitos_match);
+
+static struct of_platform_driver talitos_driver = {
+       .name           = DRV_NAME,
+       .match_table    = talitos_match,
+       .probe          = talitos_probe,
+       .remove         = talitos_remove,
+};
+
+static int __init talitos_init(void)
+{
+       return of_register_platform_driver(&talitos_driver);
+}
+
+static void __exit talitos_exit(void)
+{
+       of_unregister_platform_driver(&talitos_driver);
+}
+#else
+/* Structure for a platform device driver */
+static struct platform_driver talitos_driver = {
+       .probe = talitos_probe,
+       .remove = talitos_remove,
+       .driver = {
+               .name = "fsl-sec2",
+       }
+};
+
+static int __init talitos_init(void)
+{
+       return platform_driver_register(&talitos_driver);
+}
+
+static void __exit talitos_exit(void)
+{
+       platform_driver_unregister(&talitos_driver);
+}
+#endif
+
+module_init(talitos_init);
+module_exit(talitos_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("kim.phillips@freescale.com");
+MODULE_DESCRIPTION("OCF driver for Freescale SEC (talitos)");
--- /dev/null
+++ b/crypto/ocf/talitos/talitos_soft.h
@@ -0,0 +1,77 @@
+/*
+ * Freescale SEC data structures for integration with ocf-linux
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * paired descriptor and associated crypto operation
+ */
+struct desc_cryptop_pair {
+       struct talitos_desc     cf_desc;        /* descriptor ptr */
+       struct cryptop          *cf_crp;        /* cryptop ptr */
+};
+
+/*
+ * Holds data specific to a single talitos device.
+ */
+struct talitos_softc {
+       softc_device_decl       sc_cdev;
+       struct platform_device  *sc_dev;        /* device backpointer */
+       ocf_iomem_t             sc_base_addr;
+       int                     sc_irq;
+       int                     sc_num;         /* if we have multiple chips */
+       int32_t                 sc_cid;         /* crypto tag */
+       u64                     sc_chiprev;     /* major/minor chip revision */
+       int                     sc_nsessions;
+       struct talitos_session  *sc_sessions;
+       int                     sc_num_channels;/* number of crypto channels */
+       int                     sc_chfifo_len;  /* channel fetch fifo len */
+       int                     sc_exec_units;  /* execution units mask */
+       int                     sc_desc_types;  /* descriptor types mask */
+       /*
+        * mutual exclusion for intra-channel resources, e.g. fetch fifos
+        * the last entry is a meta-channel lock used by the channel scheduler
+        */
+       spinlock_t              *sc_chnfifolock;
+       /* sc_chnlastalgo contains last algorithm for that channel */
+       int                     *sc_chnlastalg;
+       /* sc_chnfifo holds pending descriptor--crypto operation pairs */
+       struct desc_cryptop_pair        **sc_chnfifo;
+};
+
+struct talitos_session {
+       u_int32_t       ses_used;
+       u_int32_t       ses_klen;               /* key length in bits */
+       u_int32_t       ses_key[8];             /* DES/3DES/AES key */
+       u_int32_t       ses_hmac[5];            /* hmac inner state */
+       u_int32_t       ses_hmac_len;           /* hmac length */
+       u_int32_t       ses_iv[4];              /* DES/3DES/AES iv */
+       u_int32_t       ses_mlen;               /* desired hash result len (12=ipsec or 16) */
+};
+
+#define        TALITOS_SESSION(sid)    ((sid) & 0x0fffffff)
+#define        TALITOS_SID(crd, sesn)  (((crd) << 28) | ((sesn) & 0x0fffffff))
--- /dev/null
+++ b/crypto/ocf/talitos/talitos_dev.h
@@ -0,0 +1,277 @@
+/*
+ * Freescale SEC (talitos) device dependent data structures
+ *
+ * Copyright (c) 2006 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/* device ID register values */
+#define TALITOS_ID_SEC_2_0     0x40
+#define TALITOS_ID_SEC_2_1     0x40 /* cross ref with IP block revision reg */
+
+/*
+ * following num_channels, channel-fifo-depth, exec-unit-mask, and 
+ * descriptor-types-mask are for forward-compatibility with openfirmware
+ * flat device trees
+ */
+
+/*
+ *  num_channels : the number of channels available in each SEC version.
+ */
+
+/* n.b. this driver requires these values be a power of 2 */
+#define TALITOS_NCHANNELS_SEC_1_0      4
+#define TALITOS_NCHANNELS_SEC_1_2      1
+#define TALITOS_NCHANNELS_SEC_2_0      4
+#define TALITOS_NCHANNELS_SEC_2_01     4
+#define TALITOS_NCHANNELS_SEC_2_1      4
+#define TALITOS_NCHANNELS_SEC_2_4      4
+
+/*
+ *  channel-fifo-depth : The number of descriptor
+ *  pointers a channel fetch fifo can hold.
+ */
+#define TALITOS_CHFIFOLEN_SEC_1_0      1
+#define TALITOS_CHFIFOLEN_SEC_1_2      1
+#define TALITOS_CHFIFOLEN_SEC_2_0      24
+#define TALITOS_CHFIFOLEN_SEC_2_01     24
+#define TALITOS_CHFIFOLEN_SEC_2_1      24
+#define TALITOS_CHFIFOLEN_SEC_2_4      24
+
+/* 
+ *  exec-unit-mask : The bitmask representing what Execution Units (EUs)
+ *  are available. EU information should be encoded following the SEC's 
+ *  EU_SEL0 bitfield documentation, i.e. as follows:
+ * 
+ *    bit 31 = set if SEC permits no-EU selection (should be always set)
+ *    bit 30 = set if SEC has the ARC4 EU (AFEU)
+ *    bit 29 = set if SEC has the des/3des EU (DEU)
+ *    bit 28 = set if SEC has the message digest EU (MDEU)
+ *    bit 27 = set if SEC has the random number generator EU (RNG)
+ *    bit 26 = set if SEC has the public key EU (PKEU)
+ *    bit 25 = set if SEC has the aes EU (AESU)
+ *    bit 24 = set if SEC has the Kasumi EU (KEU)
+ * 
+ */
+#define TALITOS_HAS_EU_NONE            (1<<0)
+#define TALITOS_HAS_EU_AFEU            (1<<1)
+#define TALITOS_HAS_EU_DEU             (1<<2)
+#define TALITOS_HAS_EU_MDEU            (1<<3)
+#define TALITOS_HAS_EU_RNG             (1<<4)
+#define TALITOS_HAS_EU_PKEU            (1<<5)
+#define TALITOS_HAS_EU_AESU            (1<<6)
+#define TALITOS_HAS_EU_KEU             (1<<7)
+
+/* the corresponding masks for each SEC version */
+#define TALITOS_HAS_EUS_SEC_1_0                0x7f
+#define TALITOS_HAS_EUS_SEC_1_2                0x4d
+#define TALITOS_HAS_EUS_SEC_2_0                0x7f
+#define TALITOS_HAS_EUS_SEC_2_01       0x7f
+#define TALITOS_HAS_EUS_SEC_2_1                0xff
+#define TALITOS_HAS_EUS_SEC_2_4                0x7f
+
+/*
+ *  descriptor-types-mask : The bitmask representing what descriptors
+ *  are available. Descriptor type information should be encoded 
+ *  following the SEC's Descriptor Header Dword DESC_TYPE field 
+ *  documentation, i.e. as follows:
+ *
+ *    bit 0  = set if SEC supports the aesu_ctr_nonsnoop desc. type
+ *    bit 1  = set if SEC supports the ipsec_esp descriptor type
+ *    bit 2  = set if SEC supports the common_nonsnoop desc. type
+ *    bit 3  = set if SEC supports the 802.11i AES ccmp desc. type
+ *    bit 4  = set if SEC supports the hmac_snoop_no_afeu desc. type
+ *    bit 5  = set if SEC supports the srtp descriptor type
+ *    bit 6  = set if SEC supports the non_hmac_snoop_no_afeu desc.type
+ *    bit 7  = set if SEC supports the pkeu_assemble descriptor type
+ *    bit 8  = set if SEC supports the aesu_key_expand_output desc.type
+ *    bit 9  = set if SEC supports the pkeu_ptmul descriptor type
+ *    bit 10 = set if SEC supports the common_nonsnoop_afeu desc. type
+ *    bit 11 = set if SEC supports the pkeu_ptadd_dbl descriptor type
+ *
+ *  ..and so on and so forth.
+ */
+#define TALITOS_HAS_DT_AESU_CTR_NONSNOOP       (1<<0)
+#define TALITOS_HAS_DT_IPSEC_ESP               (1<<1)
+#define TALITOS_HAS_DT_COMMON_NONSNOOP         (1<<2)
+
+/* the corresponding masks for each SEC version */
+#define TALITOS_HAS_DESCTYPES_SEC_2_0  0x01010ebf
+#define TALITOS_HAS_DESCTYPES_SEC_2_1  0x012b0ebf
+
+/* 
+ * a TALITOS_xxx_HI address points to the low data bits (32-63) of the register
+ */
+
+/* global register offset addresses */
+#define TALITOS_ID             0x1020
+#define TALITOS_ID_HI          0x1024
+#define TALITOS_MCR            0x1030          /* master control register */
+#define TALITOS_MCR_HI         0x1038          /* master control register */
+#define TALITOS_MCR_SWR                0x1
+#define TALITOS_IMR            0x1008          /* interrupt mask register */
+#define TALITOS_IMR_ALL                0x00010fff      /* enable all interrupts mask */
+#define TALITOS_IMR_ERRONLY    0x00010aaa      /* enable error interrupts */
+#define TALITOS_IMR_HI         0x100C          /* interrupt mask register */
+#define TALITOS_IMR_HI_ALL     0x00323333      /* enable all interrupts mask */
+#define TALITOS_IMR_HI_ERRONLY 0x00222222      /* enable error interrupts */
+#define TALITOS_ISR            0x1010          /* interrupt status register */
+#define TALITOS_ISR_ERROR      0x00010faa      /* errors mask */
+#define TALITOS_ISR_DONE       0x00000055      /* channel(s) done mask */
+#define TALITOS_ISR_HI         0x1014          /* interrupt status register */
+#define TALITOS_ICR            0x1018          /* interrupt clear register */
+#define TALITOS_ICR_HI         0x101C          /* interrupt clear register */
+
+/* channel register address stride */
+#define TALITOS_CH_OFFSET      0x100
+
+/* channel register offset addresses and bits */
+#define TALITOS_CH_CCCR                0x1108  /* Crypto-Channel Config Register */
+#define TALITOS_CH_CCCR_RESET  0x1     /* Channel Reset bit */
+#define TALITOS_CH_CCCR_HI     0x110c  /* Crypto-Channel Config Register */
+#define TALITOS_CH_CCCR_HI_CDWE        0x10    /* Channel done writeback enable bit */
+#define TALITOS_CH_CCCR_HI_NT  0x4     /* Notification type bit */
+#define TALITOS_CH_CCCR_HI_CDIE        0x2     /* Channel Done Interrupt Enable bit */
+#define TALITOS_CH_CCPSR       0x1110  /* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_CCPSR_HI    0x1114  /* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_FF          0x1148  /* Fetch FIFO */
+#define TALITOS_CH_FF_HI       0x114c  /* Fetch FIFO's FETCH_ADRS */
+#define TALITOS_CH_CDPR                0x1140  /* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_CDPR_HI     0x1144  /* Crypto-Channel Pointer Status Reg */
+#define TALITOS_CH_DESCBUF     0x1180  /* (thru 11bf) Crypto-Channel 
+                                        * Descriptor Buffer (debug) */
+
+/* execution unit register offset addresses and bits */
+#define TALITOS_DEUSR          0x2028  /* DEU status register */
+#define TALITOS_DEUSR_HI       0x202c  /* DEU status register */
+#define TALITOS_DEUISR         0x2030  /* DEU interrupt status register */
+#define TALITOS_DEUISR_HI      0x2034  /* DEU interrupt status register */
+#define TALITOS_DEUICR         0x2038  /* DEU interrupt control register */
+#define TALITOS_DEUICR_HI      0x203c  /* DEU interrupt control register */
+#define TALITOS_AESUISR                0x4030  /* AESU interrupt status register */
+#define TALITOS_AESUISR_HI     0x4034  /* AESU interrupt status register */
+#define TALITOS_AESUICR                0x4038  /* AESU interrupt control register */
+#define TALITOS_AESUICR_HI     0x403c  /* AESU interrupt control register */
+#define TALITOS_MDEUISR                0x6030  /* MDEU interrupt status register */
+#define TALITOS_MDEUISR_HI     0x6034  /* MDEU interrupt status register */
+#define TALITOS_RNGSR          0xa028  /* RNG status register */
+#define TALITOS_RNGSR_HI       0xa02c  /* RNG status register */
+#define TALITOS_RNGSR_HI_RD    0x1     /* RNG Reset done */
+#define TALITOS_RNGSR_HI_OFL   0xff0000/* number of dwords in RNG output FIFO*/
+#define TALITOS_RNGDSR         0xa010  /* RNG data size register */
+#define TALITOS_RNGDSR_HI      0xa014  /* RNG data size register */
+#define TALITOS_RNG_FIFO       0xa800  /* RNG FIFO - pool of random numbers */
+#define TALITOS_RNGISR         0xa030  /* RNG Interrupt status register */
+#define TALITOS_RNGISR_HI      0xa034  /* RNG Interrupt status register */
+#define TALITOS_RNGRCR         0xa018  /* RNG Reset control register */
+#define TALITOS_RNGRCR_HI      0xa01c  /* RNG Reset control register */
+#define TALITOS_RNGRCR_HI_SR   0x1     /* RNG RNGRCR:Software Reset */
+
+/* descriptor pointer entry */
+struct talitos_desc_ptr {
+       u16     len;            /* length */
+       u8      extent;         /* jump (to s/g link table) and extent */
+       u8      res;            /* reserved */
+       u32     ptr;            /* pointer */
+};
+
+/* descriptor */
+struct talitos_desc {
+       u32     hdr;                            /* header */
+       u32     res;                            /* reserved */
+       struct talitos_desc_ptr         ptr[7]; /* ptr/len pair array */
+};
+
+/* talitos descriptor header (hdr) bits */
+
+/* primary execution unit select */
+#define        TALITOS_SEL0_AFEU       0x10000000
+#define        TALITOS_SEL0_DEU        0x20000000
+#define        TALITOS_SEL0_MDEU       0x30000000
+#define        TALITOS_SEL0_RNG        0x40000000
+#define        TALITOS_SEL0_PKEU       0x50000000
+#define        TALITOS_SEL0_AESU       0x60000000
+
+/* primary execution unit mode (MODE0) and derivatives */
+#define        TALITOS_MODE0_AESU_CBC          0x00200000
+#define        TALITOS_MODE0_AESU_ENC          0x00100000
+#define        TALITOS_MODE0_DEU_CBC           0x00400000
+#define        TALITOS_MODE0_DEU_3DES          0x00200000
+#define        TALITOS_MODE0_DEU_ENC           0x00100000
+#define        TALITOS_MODE0_MDEU_INIT         0x01000000      /* init starting regs */
+#define        TALITOS_MODE0_MDEU_HMAC         0x00800000
+#define        TALITOS_MODE0_MDEU_PAD          0x00400000      /* PD */
+#define        TALITOS_MODE0_MDEU_MD5          0x00200000
+#define        TALITOS_MODE0_MDEU_SHA256       0x00100000
+#define        TALITOS_MODE0_MDEU_SHA1         0x00000000      /* SHA-160 */
+#define        TALITOS_MODE0_MDEU_MD5_HMAC     \
+               (TALITOS_MODE0_MDEU_MD5 | TALITOS_MODE0_MDEU_HMAC)
+#define        TALITOS_MODE0_MDEU_SHA256_HMAC  \
+               (TALITOS_MODE0_MDEU_SHA256 | TALITOS_MODE0_MDEU_HMAC)
+#define        TALITOS_MODE0_MDEU_SHA1_HMAC    \
+               (TALITOS_MODE0_MDEU_SHA1 | TALITOS_MODE0_MDEU_HMAC)
+
+/* secondary execution unit select (SEL1) */
+/* it's MDEU or nothing */
+#define        TALITOS_SEL1_MDEU       0x00030000
+
+/* secondary execution unit mode (MODE1) and derivatives */
+#define        TALITOS_MODE1_MDEU_INIT         0x00001000      /* init starting regs */
+#define        TALITOS_MODE1_MDEU_HMAC         0x00000800
+#define        TALITOS_MODE1_MDEU_PAD          0x00000400      /* PD */
+#define        TALITOS_MODE1_MDEU_MD5          0x00000200
+#define        TALITOS_MODE1_MDEU_SHA256       0x00000100
+#define        TALITOS_MODE1_MDEU_SHA1         0x00000000      /* SHA-160 */
+#define        TALITOS_MODE1_MDEU_MD5_HMAC     \
+       (TALITOS_MODE1_MDEU_MD5 | TALITOS_MODE1_MDEU_HMAC)
+#define        TALITOS_MODE1_MDEU_SHA256_HMAC  \
+       (TALITOS_MODE1_MDEU_SHA256 | TALITOS_MODE1_MDEU_HMAC)
+#define        TALITOS_MODE1_MDEU_SHA1_HMAC    \
+       (TALITOS_MODE1_MDEU_SHA1 | TALITOS_MODE1_MDEU_HMAC)
+
+/* direction of overall data flow (DIR) */
+#define        TALITOS_DIR_OUTBOUND    0x00000000
+#define        TALITOS_DIR_INBOUND     0x00000002
+
+/* done notification (DN) */
+#define        TALITOS_DONE_NOTIFY     0x00000001
+
+/* descriptor types */
+/* odd numbers here are valid on SEC2 and greater only (e.g. ipsec_esp) */
+#define TD_TYPE_AESU_CTR_NONSNOOP      (0 << 3)
+#define TD_TYPE_IPSEC_ESP              (1 << 3)
+#define TD_TYPE_COMMON_NONSNOOP_NO_AFEU        (2 << 3)
+#define TD_TYPE_HMAC_SNOOP_NO_AFEU     (4 << 3)
+
+#define TALITOS_HDR_DONE_BITS  0xff000000
+
+#define        DPRINTF(a...)   do { \
+                                               if (debug) { \
+                                                       printk("%s: ", sc ? \
+                                                               device_get_nameunit(sc->sc_cdev) : "talitos"); \
+                                                       printk(a); \
+                                               } \
+                                       } while (0)
--- /dev/null
+++ b/crypto/ocf/random.c
@@ -0,0 +1,317 @@
+/*
+ * A system independant way of adding entropy to the kernels pool
+ * this way the drivers can focus on the real work and we can take
+ * care of pushing it to the appropriate place in the kernel.
+ *
+ * This should be fast and callable from timers/interrupts
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/poll.h>
+#include <linux/random.h>
+#include <cryptodev.h>
+
+#ifdef CONFIG_OCF_FIPS
+#include "rndtest.h"
+#endif
+
+#ifndef HAS_RANDOM_INPUT_WAIT
+#error "Please do not enable OCF_RANDOMHARVEST unless you have applied patches"
+#endif
+
+/*
+ * a hack to access the debug levels from the crypto driver
+ */
+extern int crypto_debug;
+#define debug crypto_debug
+
+/*
+ * a list of all registered random providers
+ */
+static LIST_HEAD(random_ops);
+static int started = 0;
+static int initted = 0;
+
+struct random_op {
+       struct list_head random_list;
+       u_int32_t driverid;
+       int (*read_random)(void *arg, u_int32_t *buf, int len);
+       void *arg;
+};
+
+static int random_proc(void *arg);
+
+static pid_t           randomproc = (pid_t) -1;
+static spinlock_t      random_lock;
+
+/*
+ * just init the spin locks
+ */
+static int
+crypto_random_init(void)
+{
+       spin_lock_init(&random_lock);
+       initted = 1;
+       return(0);
+}
+
+/*
+ * Add the given random reader to our list (if not present)
+ * and start the thread (if not already started)
+ *
+ * we have to assume that driver id is ok for now
+ */
+int
+crypto_rregister(
+       u_int32_t driverid,
+       int (*read_random)(void *arg, u_int32_t *buf, int len),
+       void *arg)
+{
+       unsigned long flags;
+       int ret = 0;
+       struct random_op        *rops, *tmp;
+
+       dprintk("%s,%d: %s(0x%x, %p, %p)\n", __FILE__, __LINE__,
+                       __FUNCTION__, driverid, read_random, arg);
+
+       if (!initted)
+               crypto_random_init();
+
+#if 0
+       struct cryptocap        *cap;
+
+       cap = crypto_checkdriver(driverid);
+       if (!cap)
+               return EINVAL;
+#endif
+
+       list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+               if (rops->driverid == driverid && rops->read_random == read_random)
+                       return EEXIST;
+       }
+
+       rops = (struct random_op *) kmalloc(sizeof(*rops), GFP_KERNEL);
+       if (!rops)
+               return ENOMEM;
+
+       rops->driverid    = driverid;
+       rops->read_random = read_random;
+       rops->arg = arg;
+
+       spin_lock_irqsave(&random_lock, flags);
+       list_add_tail(&rops->random_list, &random_ops);
+       if (!started) {
+               randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES);
+               if (randomproc < 0) {
+                       ret = randomproc;
+                       printk("crypto: crypto_rregister cannot start random thread; "
+                                       "error %d", ret);
+               } else
+                       started = 1;
+       }
+       spin_unlock_irqrestore(&random_lock, flags);
+
+       return ret;
+}
+EXPORT_SYMBOL(crypto_rregister);
+
+int
+crypto_runregister_all(u_int32_t driverid)
+{
+       struct random_op *rops, *tmp;
+       unsigned long flags;
+
+       dprintk("%s,%d: %s(0x%x)\n", __FILE__, __LINE__, __FUNCTION__, driverid);
+
+       list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+               if (rops->driverid == driverid) {
+                       list_del(&rops->random_list);
+                       kfree(rops);
+               }
+       }
+
+       spin_lock_irqsave(&random_lock, flags);
+       if (list_empty(&random_ops) && started)
+               kill_proc(randomproc, SIGKILL, 1);
+       spin_unlock_irqrestore(&random_lock, flags);
+       return(0);
+}
+EXPORT_SYMBOL(crypto_runregister_all);
+
+/*
+ * while we can add entropy to random.c continue to read random data from
+ * the drivers and push it to random.
+ */
+static int
+random_proc(void *arg)
+{
+       int n;
+       int wantcnt;
+       int bufcnt = 0;
+       int retval = 0;
+       int *buf = NULL;
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+       daemonize();
+       spin_lock_irq(&current->sigmask_lock);
+       sigemptyset(&current->blocked);
+       recalc_sigpending(current);
+       spin_unlock_irq(&current->sigmask_lock);
+       sprintf(current->comm, "ocf-random");
+#else
+       daemonize("ocf-random");
+       allow_signal(SIGKILL);
+#endif
+
+       (void) get_fs();
+       set_fs(get_ds());
+
+#ifdef CONFIG_OCF_FIPS
+#define NUM_INT (RNDTEST_NBYTES/sizeof(int))
+#else
+#define NUM_INT 32
+#endif
+
+       /*
+        * some devices can transferr their RNG data direct into memory,
+        * so make sure it is device friendly
+        */
+       buf = kmalloc(NUM_INT * sizeof(int), GFP_DMA);
+       if (NULL == buf) {
+               printk("crypto: RNG could not allocate memory\n");
+               retval = -ENOMEM;
+               goto bad_alloc;
+       }
+
+       wantcnt = NUM_INT;   /* start by adding some entropy */
+
+       /*
+        * its possible due to errors or driver removal that we no longer
+        * have anything to do,  if so exit or we will consume all the CPU
+        * doing nothing
+        */
+       while (!list_empty(&random_ops)) {
+               struct random_op        *rops, *tmp;
+
+#ifdef CONFIG_OCF_FIPS
+               if (wantcnt)
+                       wantcnt = NUM_INT; /* FIPs mode can do 20000 bits or none */
+#endif
+
+               /* see if we can get enough entropy to make the world
+                * a better place.
+                */
+               while (bufcnt < wantcnt && bufcnt < NUM_INT) {
+                       list_for_each_entry_safe(rops, tmp, &random_ops, random_list) {
+
+                               n = (*rops->read_random)(rops->arg, &buf[bufcnt],
+                                                        NUM_INT - bufcnt);
+
+                               /* on failure remove the random number generator */
+                               if (n == -1) {
+                                       list_del(&rops->random_list);
+                                       printk("crypto: RNG (driverid=0x%x) failed, disabling\n",
+                                                       rops->driverid);
+                                       kfree(rops);
+                               } else if (n > 0)
+                                       bufcnt += n;
+                       }
+                       /* give up CPU for a bit, just in case as this is a loop */
+                       schedule();
+               }
+
+
+#ifdef CONFIG_OCF_FIPS
+               if (bufcnt > 0 && rndtest_buf((unsigned char *) &buf[0])) {
+                       dprintk("crypto: buffer had fips errors, discarding\n");
+                       bufcnt = 0;
+               }
+#endif
+
+               /*
+                * if we have a certified buffer,  we can send some data
+                * to /dev/random and move along
+                */
+               if (bufcnt > 0) {
+                       /* add what we have */
+                       random_input_words(buf, bufcnt, bufcnt*sizeof(int)*8);
+                       bufcnt = 0;
+               }
+
+               /* give up CPU for a bit so we don't hog while filling */
+               schedule();
+
+               /* wait for needing more */
+               wantcnt = random_input_wait();
+
+               if (wantcnt <= 0)
+                       wantcnt = 0; /* try to get some info again */
+               else
+                       /* round up to one word or we can loop forever */
+                       wantcnt = (wantcnt + (sizeof(int)*8)) / (sizeof(int)*8);
+               if (wantcnt > NUM_INT) {
+                       wantcnt = NUM_INT;
+               }
+
+               if (signal_pending(current)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                       spin_lock_irq(&current->sigmask_lock);
+#endif
+                       flush_signals(current);
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+                       spin_unlock_irq(&current->sigmask_lock);
+#endif
+               }
+       }
+       
+       kfree(buf);
+
+bad_alloc:
+       spin_lock_irq(&random_lock);
+       randomproc = (pid_t) -1;
+       started = 0;
+       spin_unlock_irq(&random_lock);
+
+       return retval;
+}
+
--- /dev/null
+++ b/crypto/ocf/ocf-bench.c
@@ -0,0 +1,436 @@
+/*
+ * A loadable module that benchmarks the OCF crypto speed from kernel space.
+ *
+ * Copyright (C) 2004-2007 David McCullough <david_mccullough@securecomputing.com>
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/version.h>
+#include <linux/interrupt.h>
+#include <cryptodev.h>
+
+#ifdef I_HAVE_AN_XSCALE_WITH_INTEL_SDK
+#define BENCH_IXP_ACCESS_LIB 1
+#endif
+#ifdef BENCH_IXP_ACCESS_LIB
+#include <IxTypes.h>
+#include <IxOsBuffMgt.h>
+#include <IxNpeDl.h>
+#include <IxCryptoAcc.h>
+#include <IxQMgr.h>
+#include <IxOsServices.h>
+#include <IxOsCacheMMU.h>
+#endif
+
+/*
+ * support for access lib version 1.4
+ */
+#ifndef IX_MBUF_PRIV
+#define IX_MBUF_PRIV(x) ((x)->priv)
+#endif
+
+/*
+ * the number of simultaneously active requests
+ */
+static int request_q_len = 20;
+module_param(request_q_len, int, 0);
+MODULE_PARM_DESC(request_q_len, "Number of outstanding requests");
+/*
+ * how many requests we want to have processed
+ */
+static int request_num = 1024;
+module_param(request_num, int, 0);
+MODULE_PARM_DESC(request_num, "run for at least this many requests");
+/*
+ * the size of each request
+ */
+static int request_size = 1500;
+module_param(request_size, int, 0);
+MODULE_PARM_DESC(request_size, "size of each request");
+
+/*
+ * a structure for each request
+ */
+typedef struct  {
+       struct work_struct work;
+#ifdef BENCH_IXP_ACCESS_LIB
+       IX_MBUF mbuf;
+#endif
+       unsigned char *buffer;
+} request_t;
+
+static request_t *requests;
+
+static int outstanding;
+static int total;
+
+/*************************************************************************/
+/*
+ * OCF benchmark routines
+ */
+
+static uint64_t ocf_cryptoid;
+static int ocf_init(void);
+static int ocf_cb(struct cryptop *crp);
+static void ocf_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ocf_request_wq(struct work_struct *work);
+#endif
+
+static int
+ocf_init(void)
+{
+       int error;
+       struct cryptoini crie, cria;
+       struct cryptodesc crda, crde;
+
+       memset(&crie, 0, sizeof(crie));
+       memset(&cria, 0, sizeof(cria));
+       memset(&crde, 0, sizeof(crde));
+       memset(&crda, 0, sizeof(crda));
+
+       cria.cri_alg  = CRYPTO_SHA1_HMAC;
+       cria.cri_klen = 20 * 8;
+       cria.cri_key  = "0123456789abcdefghij";
+
+       crie.cri_alg  = CRYPTO_3DES_CBC;
+       crie.cri_klen = 24 * 8;
+       crie.cri_key  = "0123456789abcdefghijklmn";
+
+       crie.cri_next = &cria;
+
+       error = crypto_newsession(&ocf_cryptoid, &crie, 0);
+       if (error) {
+               printk("crypto_newsession failed %d\n", error);
+               return -1;
+       }
+       return 0;
+}
+
+static int
+ocf_cb(struct cryptop *crp)
+{
+       request_t *r = (request_t *) crp->crp_opaque;
+
+       if (crp->crp_etype)
+               printk("Error in OCF processing: %d\n", crp->crp_etype);
+       total++;
+       crypto_freereq(crp);
+       crp = NULL;
+
+       if (total > request_num) {
+               outstanding--;
+               return 0;
+       }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+       INIT_WORK(&r->work, ocf_request_wq);
+#else
+       INIT_WORK(&r->work, ocf_request, r);
+#endif
+       schedule_work(&r->work);
+       return 0;
+}
+
+
+static void
+ocf_request(void *arg)
+{
+       request_t *r = arg;
+       struct cryptop *crp = crypto_getreq(2);
+       struct cryptodesc *crde, *crda;
+
+       if (!crp) {
+               outstanding--;
+               return;
+       }
+
+       crde = crp->crp_desc;
+       crda = crde->crd_next;
+
+       crda->crd_skip = 0;
+       crda->crd_flags = 0;
+       crda->crd_len = request_size;
+       crda->crd_inject = request_size;
+       crda->crd_alg = CRYPTO_SHA1_HMAC;
+       crda->crd_key = "0123456789abcdefghij";
+       crda->crd_klen = 20 * 8;
+
+       crde->crd_skip = 0;
+       crde->crd_flags = CRD_F_IV_EXPLICIT | CRD_F_ENCRYPT;
+       crde->crd_len = request_size;
+       crde->crd_inject = request_size;
+       crde->crd_alg = CRYPTO_3DES_CBC;
+       crde->crd_key = "0123456789abcdefghijklmn";
+       crde->crd_klen = 24 * 8;
+
+       crp->crp_ilen = request_size + 64;
+       crp->crp_flags = CRYPTO_F_CBIMM;
+       crp->crp_buf = (caddr_t) r->buffer;
+       crp->crp_callback = ocf_cb;
+       crp->crp_sid = ocf_cryptoid;
+       crp->crp_opaque = (caddr_t) r;
+       crypto_dispatch(crp);
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ocf_request_wq(struct work_struct *work)
+{
+       request_t *r = container_of(work, request_t, work);
+       ocf_request(r);
+}
+#endif
+
+/*************************************************************************/
+#ifdef BENCH_IXP_ACCESS_LIB
+/*************************************************************************/
+/*
+ * CryptoAcc benchmark routines
+ */
+
+static IxCryptoAccCtx ixp_ctx;
+static UINT32 ixp_ctx_id;
+static IX_MBUF ixp_pri;
+static IX_MBUF ixp_sec;
+static int ixp_registered = 0;
+
+static void ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp,
+                                       IxCryptoAccStatus status);
+static void ixp_perform_cb(UINT32 ctx_id, IX_MBUF *sbufp, IX_MBUF *dbufp,
+                                       IxCryptoAccStatus status);
+static void ixp_request(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ixp_request_wq(struct work_struct *work);
+#endif
+
+static int
+ixp_init(void)
+{
+       IxCryptoAccStatus status;
+
+       ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
+       ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+       ixp_ctx.cipherCtx.cipherKeyLen = 24;
+       ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+       ixp_ctx.cipherCtx.cipherInitialVectorLen = IX_CRYPTO_ACC_DES_IV_64;
+       memcpy(ixp_ctx.cipherCtx.key.cipherKey, "0123456789abcdefghijklmn", 24);
+
+       ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
+       ixp_ctx.authCtx.authDigestLen = 12;
+       ixp_ctx.authCtx.aadLen = 0;
+       ixp_ctx.authCtx.authKeyLen = 20;
+       memcpy(ixp_ctx.authCtx.key.authKey, "0123456789abcdefghij", 20);
+
+       ixp_ctx.useDifferentSrcAndDestMbufs = 0;
+       ixp_ctx.operation = IX_CRYPTO_ACC_OP_ENCRYPT_AUTH ;
+
+       IX_MBUF_MLEN(&ixp_pri)  = IX_MBUF_PKT_LEN(&ixp_pri) = 128;
+       IX_MBUF_MDATA(&ixp_pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+       IX_MBUF_MLEN(&ixp_sec)  = IX_MBUF_PKT_LEN(&ixp_sec) = 128;
+       IX_MBUF_MDATA(&ixp_sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+
+       status = ixCryptoAccCtxRegister(&ixp_ctx, &ixp_pri, &ixp_sec,
+                       ixp_register_cb, ixp_perform_cb, &ixp_ctx_id);
+
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS == status) {
+               while (!ixp_registered)
+                       schedule();
+               return ixp_registered < 0 ? -1 : 0;
+       }
+
+       printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
+       return -1;
+}
+
+static void
+ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
+{
+       if (bufp) {
+               IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
+               kfree(IX_MBUF_MDATA(bufp));
+               IX_MBUF_MDATA(bufp) = NULL;
+       }
+
+       if (IX_CRYPTO_ACC_STATUS_WAIT == status)
+               return;
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+               ixp_registered = 1;
+       else
+               ixp_registered = -1;
+}
+
+static void
+ixp_perform_cb(
+       UINT32 ctx_id,
+       IX_MBUF *sbufp,
+       IX_MBUF *dbufp,
+       IxCryptoAccStatus status)
+{
+       request_t *r = NULL;
+
+       total++;
+       if (total > request_num) {
+               outstanding--;
+               return;
+       }
+
+       if (!sbufp || !(r = IX_MBUF_PRIV(sbufp))) {
+               printk("crappo %p %p\n", sbufp, r);
+               outstanding--;
+               return;
+       }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+       INIT_WORK(&r->work, ixp_request_wq);
+#else
+       INIT_WORK(&r->work, ixp_request, r);
+#endif
+       schedule_work(&r->work);
+}
+
+static void
+ixp_request(void *arg)
+{
+       request_t *r = arg;
+       IxCryptoAccStatus status;
+
+       memset(&r->mbuf, 0, sizeof(r->mbuf));
+       IX_MBUF_MLEN(&r->mbuf) = IX_MBUF_PKT_LEN(&r->mbuf) = request_size + 64;
+       IX_MBUF_MDATA(&r->mbuf) = r->buffer;
+       IX_MBUF_PRIV(&r->mbuf) = r;
+       status = ixCryptoAccAuthCryptPerform(ixp_ctx_id, &r->mbuf, NULL,
+                       0, request_size, 0, request_size, request_size, r->buffer);
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
+               printk("status1 = %d\n", status);
+               outstanding--;
+               return;
+       }
+       return;
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_request_wq(struct work_struct *work)
+{
+       request_t *r = container_of(work, request_t, work);
+       ixp_request(r);
+}
+#endif
+
+/*************************************************************************/
+#endif /* BENCH_IXP_ACCESS_LIB */
+/*************************************************************************/
+
+int
+ocfbench_init(void)
+{
+       int i, jstart, jstop;
+
+       printk("Crypto Speed tests\n");
+
+       requests = kmalloc(sizeof(request_t) * request_q_len, GFP_KERNEL);
+       if (!requests) {
+               printk("malloc failed\n");
+               return -EINVAL;
+       }
+
+       for (i = 0; i < request_q_len; i++) {
+               /* +64 for return data */
+               requests[i].buffer = kmalloc(request_size + 128, GFP_DMA);
+               if (!requests[i].buffer) {
+                       printk("malloc failed\n");
+                       return -EINVAL;
+               }
+               memset(requests[i].buffer, '0' + i, request_size + 128);
+       }
+
+       /*
+        * OCF benchmark
+        */
+       printk("OCF: testing ...\n");
+       ocf_init();
+       total = outstanding = 0;
+       jstart = jiffies;
+       for (i = 0; i < request_q_len; i++) {
+               outstanding++;
+               ocf_request(&requests[i]);
+       }
+       while (outstanding > 0)
+               schedule();
+       jstop = jiffies;
+
+       printk("OCF: %d requests of %d bytes in %d jiffies\n", total, request_size,
+                       jstop - jstart);
+
+#ifdef BENCH_IXP_ACCESS_LIB
+       /*
+        * IXP benchmark
+        */
+       printk("IXP: testing ...\n");
+       ixp_init();
+       total = outstanding = 0;
+       jstart = jiffies;
+       for (i = 0; i < request_q_len; i++) {
+               outstanding++;
+               ixp_request(&requests[i]);
+       }
+       while (outstanding > 0)
+               schedule();
+       jstop = jiffies;
+
+       printk("IXP: %d requests of %d bytes in %d jiffies\n", total, request_size,
+                       jstop - jstart);
+#endif /* BENCH_IXP_ACCESS_LIB */
+
+       for (i = 0; i < request_q_len; i++)
+               kfree(requests[i].buffer);
+       kfree(requests);
+       return -EINVAL; /* always fail to load so it can be re-run quickly ;-) */
+}
+
+static void __exit ocfbench_exit(void)
+{
+}
+
+module_init(ocfbench_init);
+module_exit(ocfbench_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Benchmark various in-kernel crypto speeds");
--- /dev/null
+++ b/crypto/ocf/ixp4xx/ixp4xx.c
@@ -0,0 +1,1328 @@
+/*
+ * An OCF module that uses Intels IXP CryptACC API to do the crypto.
+ * This driver requires the IXP400 Access Library that is available
+ * from Intel in order to operate (or compile).
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/interrupt.h>
+#include <asm/scatterlist.h>
+
+#include <IxTypes.h>
+#include <IxOsBuffMgt.h>
+#include <IxNpeDl.h>
+#include <IxCryptoAcc.h>
+#include <IxQMgr.h>
+#include <IxOsServices.h>
+#include <IxOsCacheMMU.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+#ifndef IX_MBUF_PRIV
+#define IX_MBUF_PRIV(x) ((x)->priv)
+#endif
+
+struct ixp_data;
+
+struct ixp_q {
+       struct list_head         ixp_q_list;
+       struct ixp_data         *ixp_q_data;
+       struct cryptop          *ixp_q_crp;
+       struct cryptodesc       *ixp_q_ccrd;
+       struct cryptodesc       *ixp_q_acrd;
+       IX_MBUF                          ixp_q_mbuf;
+       UINT8                           *ixp_hash_dest; /* Location for hash in client buffer */
+       UINT8                           *ixp_hash_src; /* Location of hash in internal buffer */
+       unsigned char            ixp_q_iv_data[IX_CRYPTO_ACC_MAX_CIPHER_IV_LENGTH];
+       unsigned char           *ixp_q_iv;
+};
+
+struct ixp_data {
+       int                                      ixp_registered;        /* is the context registered */
+       int                                      ixp_crd_flags;         /* detect direction changes */
+
+       int                                      ixp_cipher_alg;
+       int                                      ixp_auth_alg;
+
+       UINT32                           ixp_ctx_id;
+       UINT32                           ixp_hash_key_id;       /* used when hashing */
+       IxCryptoAccCtx           ixp_ctx;
+       IX_MBUF                          ixp_pri_mbuf;
+       IX_MBUF                          ixp_sec_mbuf;
+
+       struct work_struct   ixp_pending_work;
+       struct work_struct   ixp_registration_work;
+       struct list_head         ixp_q;                         /* unprocessed requests */
+};
+
+#ifdef __ixp46X
+
+#define        MAX_IOP_SIZE    64      /* words */
+#define        MAX_OOP_SIZE    128
+
+#define        MAX_PARAMS              3
+
+struct ixp_pkq {
+       struct list_head                         pkq_list;
+       struct cryptkop                         *pkq_krp;
+
+       IxCryptoAccPkeEauInOperands      pkq_op;
+       IxCryptoAccPkeEauOpResult        pkq_result;
+
+       UINT32                                           pkq_ibuf0[MAX_IOP_SIZE];
+       UINT32                                           pkq_ibuf1[MAX_IOP_SIZE];
+       UINT32                                           pkq_ibuf2[MAX_IOP_SIZE];
+       UINT32                                           pkq_obuf[MAX_OOP_SIZE];
+};
+
+static LIST_HEAD(ixp_pkq); /* current PK wait list */
+static struct ixp_pkq *ixp_pk_cur;
+static spinlock_t ixp_pkq_lock;
+
+#endif /* __ixp46X */
+
+static int ixp_blocked = 0;
+
+static int32_t                  ixp_id = -1;
+static struct ixp_data **ixp_sessions = NULL;
+static u_int32_t                ixp_sesnum = 0;
+
+static int ixp_process(device_t, struct cryptop *, int);
+static int ixp_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int ixp_freesession(device_t, u_int64_t);
+#ifdef __ixp46X
+static int ixp_kprocess(device_t, struct cryptkop *krp, int hint);
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
+static kmem_cache_t *qcache;
+#else
+static struct kmem_cache *qcache;
+#endif
+
+#define debug ixp_debug
+static int ixp_debug = 0;
+module_param(ixp_debug, int, 0644);
+MODULE_PARM_DESC(ixp_debug, "Enable debug");
+
+static int ixp_init_crypto = 1;
+module_param(ixp_init_crypto, int, 0444); /* RO after load/boot */
+MODULE_PARM_DESC(ixp_init_crypto, "Call ixCryptoAccInit (default is 1)");
+
+static void ixp_process_pending(void *arg);
+static void ixp_registration(void *arg);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void ixp_process_pending_wq(struct work_struct *work);
+static void ixp_registration_wq(struct work_struct *work);
+#endif
+
+/*
+ * dummy device structure
+ */
+
+static struct {
+       softc_device_decl       sc_dev;
+} ixpdev;
+
+static device_method_t ixp_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, ixp_newsession),
+       DEVMETHOD(cryptodev_freesession,ixp_freesession),
+       DEVMETHOD(cryptodev_process,    ixp_process),
+#ifdef __ixp46X
+       DEVMETHOD(cryptodev_kprocess,   ixp_kprocess),
+#endif
+};
+
+/*
+ * Generate a new software session.
+ */
+static int
+ixp_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri)
+{
+       struct ixp_data *ixp;
+       u_int32_t i;
+#define AUTH_LEN(cri, def) \
+       (cri->cri_mlen ? cri->cri_mlen : (def))
+
+       dprintk("%s():alg %d\n", __FUNCTION__,cri->cri_alg);
+       if (sid == NULL || cri == NULL) {
+               dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       if (ixp_sessions) {
+               for (i = 1; i < ixp_sesnum; i++)
+                       if (ixp_sessions[i] == NULL)
+                               break;
+       } else
+               i = 1;          /* NB: to silence compiler warning */
+
+       if (ixp_sessions == NULL || i == ixp_sesnum) {
+               struct ixp_data **ixpd;
+
+               if (ixp_sessions == NULL) {
+                       i = 1; /* We leave ixp_sessions[0] empty */
+                       ixp_sesnum = CRYPTO_SW_SESSIONS;
+               } else
+                       ixp_sesnum *= 2;
+
+               ixpd = kmalloc(ixp_sesnum * sizeof(struct ixp_data *), SLAB_ATOMIC);
+               if (ixpd == NULL) {
+                       /* Reset session number */
+                       if (ixp_sesnum == CRYPTO_SW_SESSIONS)
+                               ixp_sesnum = 0;
+                       else
+                               ixp_sesnum /= 2;
+                       dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+                       return ENOBUFS;
+               }
+               memset(ixpd, 0, ixp_sesnum * sizeof(struct ixp_data *));
+
+               /* Copy existing sessions */
+               if (ixp_sessions) {
+                       memcpy(ixpd, ixp_sessions,
+                           (ixp_sesnum / 2) * sizeof(struct ixp_data *));
+                       kfree(ixp_sessions);
+               }
+
+               ixp_sessions = ixpd;
+       }
+
+       ixp_sessions[i] = (struct ixp_data *) kmalloc(sizeof(struct ixp_data),
+                       SLAB_ATOMIC);
+       if (ixp_sessions[i] == NULL) {
+               ixp_freesession(NULL, i);
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return ENOBUFS;
+       }
+
+       *sid = i;
+
+       ixp = ixp_sessions[i];
+       memset(ixp, 0, sizeof(*ixp));
+
+       ixp->ixp_cipher_alg = -1;
+       ixp->ixp_auth_alg = -1;
+       ixp->ixp_ctx_id = -1;
+       INIT_LIST_HEAD(&ixp->ixp_q);
+
+       ixp->ixp_ctx.useDifferentSrcAndDestMbufs = 0;
+
+       while (cri) {
+               switch (cri->cri_alg) {
+               case CRYPTO_DES_CBC:
+                       ixp->ixp_cipher_alg = cri->cri_alg;
+                       ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_DES;
+                       ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+                       ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+                       ixp->ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+                       ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen =
+                                               IX_CRYPTO_ACC_DES_IV_64;
+                       memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+                                       cri->cri_key, (cri->cri_klen + 7) / 8);
+                       break;
+
+               case CRYPTO_3DES_CBC:
+                       ixp->ixp_cipher_alg = cri->cri_alg;
+                       ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_3DES;
+                       ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+                       ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+                       ixp->ixp_ctx.cipherCtx.cipherBlockLen = IX_CRYPTO_ACC_DES_BLOCK_64;
+                       ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen =
+                                               IX_CRYPTO_ACC_DES_IV_64;
+                       memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+                                       cri->cri_key, (cri->cri_klen + 7) / 8);
+                       break;
+
+               case CRYPTO_RIJNDAEL128_CBC:
+                       ixp->ixp_cipher_alg = cri->cri_alg;
+                       ixp->ixp_ctx.cipherCtx.cipherAlgo = IX_CRYPTO_ACC_CIPHER_AES;
+                       ixp->ixp_ctx.cipherCtx.cipherMode = IX_CRYPTO_ACC_MODE_CBC;
+                       ixp->ixp_ctx.cipherCtx.cipherKeyLen = (cri->cri_klen + 7) / 8;
+                       ixp->ixp_ctx.cipherCtx.cipherBlockLen = 16;
+                       ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen = 16;
+                       memcpy(ixp->ixp_ctx.cipherCtx.key.cipherKey,
+                                       cri->cri_key, (cri->cri_klen + 7) / 8);
+                       break;
+
+               case CRYPTO_MD5:
+               case CRYPTO_MD5_HMAC:
+                       ixp->ixp_auth_alg = cri->cri_alg;
+                       ixp->ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_MD5;
+                       ixp->ixp_ctx.authCtx.authDigestLen = AUTH_LEN(cri, MD5_HASH_LEN);
+                       ixp->ixp_ctx.authCtx.aadLen = 0;
+                       /* Only MD5_HMAC needs a key */
+                       if (cri->cri_alg == CRYPTO_MD5_HMAC) {
+                               ixp->ixp_ctx.authCtx.authKeyLen = (cri->cri_klen + 7) / 8;
+                               if (ixp->ixp_ctx.authCtx.authKeyLen >
+                                               sizeof(ixp->ixp_ctx.authCtx.key.authKey)) {
+                                       printk(
+                                               "ixp4xx: Invalid key length for MD5_HMAC - %d bits\n",
+                                                       cri->cri_klen);
+                                       ixp_freesession(NULL, i);
+                                       return EINVAL;
+                               }
+                               memcpy(ixp->ixp_ctx.authCtx.key.authKey,
+                                               cri->cri_key, (cri->cri_klen + 7) / 8);
+                       }
+                       break;
+
+               case CRYPTO_SHA1:
+               case CRYPTO_SHA1_HMAC:
+                       ixp->ixp_auth_alg = cri->cri_alg;
+                       ixp->ixp_ctx.authCtx.authAlgo = IX_CRYPTO_ACC_AUTH_SHA1;
+                       ixp->ixp_ctx.authCtx.authDigestLen = AUTH_LEN(cri, SHA1_HASH_LEN);
+                       ixp->ixp_ctx.authCtx.aadLen = 0;
+                       /* Only SHA1_HMAC needs a key */
+                       if (cri->cri_alg == CRYPTO_SHA1_HMAC) {
+                               ixp->ixp_ctx.authCtx.authKeyLen = (cri->cri_klen + 7) / 8;
+                               if (ixp->ixp_ctx.authCtx.authKeyLen >
+                                               sizeof(ixp->ixp_ctx.authCtx.key.authKey)) {
+                                       printk(
+                                               "ixp4xx: Invalid key length for SHA1_HMAC - %d bits\n",
+                                                       cri->cri_klen);
+                                       ixp_freesession(NULL, i);
+                                       return EINVAL;
+                               }
+                               memcpy(ixp->ixp_ctx.authCtx.key.authKey,
+                                               cri->cri_key, (cri->cri_klen + 7) / 8);
+                       }
+                       break;
+
+               default:
+                       printk("ixp: unknown algo 0x%x\n", cri->cri_alg);
+                       ixp_freesession(NULL, i);
+                       return EINVAL;
+               }
+               cri = cri->cri_next;
+       }
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+       INIT_WORK(&ixp->ixp_pending_work, ixp_process_pending_wq);
+       INIT_WORK(&ixp->ixp_registration_work, ixp_registration_wq);
+#else
+       INIT_WORK(&ixp->ixp_pending_work, ixp_process_pending, ixp);
+       INIT_WORK(&ixp->ixp_registration_work, ixp_registration, ixp);
+#endif
+
+       return 0;
+}
+
+
+/*
+ * Free a session.
+ */
+static int
+ixp_freesession(device_t dev, u_int64_t tid)
+{
+       u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (sid > ixp_sesnum || ixp_sessions == NULL ||
+                       ixp_sessions[sid] == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       /* Silently accept and return */
+       if (sid == 0)
+               return 0;
+
+       if (ixp_sessions[sid]) {
+               if (ixp_sessions[sid]->ixp_ctx_id != -1) {
+                       ixCryptoAccCtxUnregister(ixp_sessions[sid]->ixp_ctx_id);
+                       ixp_sessions[sid]->ixp_ctx_id = -1;
+               }
+
+               flush_scheduled_work();
+
+               kfree(ixp_sessions[sid]);
+       }
+       ixp_sessions[sid] = NULL;
+       if (ixp_blocked) {
+               ixp_blocked = 0;
+               crypto_unblock(ixp_id, CRYPTO_SYMQ);
+       }
+       return 0;
+}
+
+
+/*
+ * callback for when hash processing is complete
+ */
+
+static void
+ixp_hash_perform_cb(
+       UINT32 hash_key_id,
+       IX_MBUF *bufp,
+       IxCryptoAccStatus status)
+{
+       struct ixp_q *q;
+
+       dprintk("%s(%u, %p, 0x%x)\n", __FUNCTION__, hash_key_id, bufp, status);
+
+       if (bufp == NULL) {
+               printk("ixp: NULL buf in %s\n", __FUNCTION__);
+               return;
+       }
+
+       q = IX_MBUF_PRIV(bufp);
+       if (q == NULL) {
+               printk("ixp: NULL priv in %s\n", __FUNCTION__);
+               return;
+       }
+
+       if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) {
+               /* On success, need to copy hash back into original client buffer */
+               memcpy(q->ixp_hash_dest, q->ixp_hash_src,
+                               (q->ixp_q_data->ixp_auth_alg == CRYPTO_SHA1) ?
+                                       SHA1_HASH_LEN : MD5_HASH_LEN);
+       }
+       else {
+               printk("ixp: hash perform failed status=%d\n", status);
+               q->ixp_q_crp->crp_etype = EINVAL;
+       }
+
+       /* Free internal buffer used for hashing */
+       kfree(IX_MBUF_MDATA(&q->ixp_q_mbuf));
+
+       crypto_done(q->ixp_q_crp);
+       kmem_cache_free(qcache, q);
+}
+
+/*
+ * setup a request and perform it
+ */
+static void
+ixp_q_process(struct ixp_q *q)
+{
+       IxCryptoAccStatus status;
+       struct ixp_data *ixp = q->ixp_q_data;
+       int auth_off = 0;
+       int auth_len = 0;
+       int crypt_off = 0;
+       int crypt_len = 0;
+       int icv_off = 0;
+       char *crypt_func;
+
+       dprintk("%s(%p)\n", __FUNCTION__, q);
+
+       if (q->ixp_q_ccrd) {
+               if (q->ixp_q_ccrd->crd_flags & CRD_F_IV_EXPLICIT) {
+                       q->ixp_q_iv = q->ixp_q_ccrd->crd_iv;
+               } else {
+                       q->ixp_q_iv = q->ixp_q_iv_data;
+                       crypto_copydata(q->ixp_q_crp->crp_flags, q->ixp_q_crp->crp_buf,
+                                       q->ixp_q_ccrd->crd_inject,
+                                       ixp->ixp_ctx.cipherCtx.cipherInitialVectorLen,
+                                       (caddr_t) q->ixp_q_iv);
+               }
+
+               if (q->ixp_q_acrd) {
+                       auth_off = q->ixp_q_acrd->crd_skip;
+                       auth_len = q->ixp_q_acrd->crd_len;
+                       icv_off  = q->ixp_q_acrd->crd_inject;
+               }
+
+               crypt_off = q->ixp_q_ccrd->crd_skip;
+               crypt_len = q->ixp_q_ccrd->crd_len;
+       } else { /* if (q->ixp_q_acrd) */
+               auth_off = q->ixp_q_acrd->crd_skip;
+               auth_len = q->ixp_q_acrd->crd_len;
+               icv_off  = q->ixp_q_acrd->crd_inject;
+       }
+
+       if (q->ixp_q_crp->crp_flags & CRYPTO_F_SKBUF) {
+               struct sk_buff *skb = (struct sk_buff *) q->ixp_q_crp->crp_buf;
+               if (skb_shinfo(skb)->nr_frags) {
+                       /*
+                        * DAVIDM fix this limitation one day by using
+                        * a buffer pool and chaining,  it is not currently
+                        * needed for current user/kernel space acceleration
+                        */
+                       printk("ixp: Cannot handle fragmented skb's yet !\n");
+                       q->ixp_q_crp->crp_etype = ENOENT;
+                       goto done;
+               }
+               IX_MBUF_MLEN(&q->ixp_q_mbuf) =
+                               IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) =  skb->len;
+               IX_MBUF_MDATA(&q->ixp_q_mbuf) = skb->data;
+       } else if (q->ixp_q_crp->crp_flags & CRYPTO_F_IOV) {
+               struct uio *uiop = (struct uio *) q->ixp_q_crp->crp_buf;
+               if (uiop->uio_iovcnt != 1) {
+                       /*
+                        * DAVIDM fix this limitation one day by using
+                        * a buffer pool and chaining,  it is not currently
+                        * needed for current user/kernel space acceleration
+                        */
+                       printk("ixp: Cannot handle more than 1 iovec yet !\n");
+                       q->ixp_q_crp->crp_etype = ENOENT;
+                       goto done;
+               }
+               IX_MBUF_MLEN(&q->ixp_q_mbuf) =
+                               IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = uiop->uio_iov[0].iov_len;
+               IX_MBUF_MDATA(&q->ixp_q_mbuf) = uiop->uio_iov[0].iov_base;
+       } else /* contig buffer */ {
+               IX_MBUF_MLEN(&q->ixp_q_mbuf)  =
+                               IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) = q->ixp_q_crp->crp_ilen;
+               IX_MBUF_MDATA(&q->ixp_q_mbuf) = q->ixp_q_crp->crp_buf;
+       }
+
+       IX_MBUF_PRIV(&q->ixp_q_mbuf) = q;
+
+       if (ixp->ixp_auth_alg == CRYPTO_SHA1 || ixp->ixp_auth_alg == CRYPTO_MD5) {
+               /*
+                * For SHA1 and MD5 hash, need to create an internal buffer that is big
+                * enough to hold the original data + the appropriate padding for the
+                * hash algorithm.
+                */
+               UINT8 *tbuf = NULL;
+
+               IX_MBUF_MLEN(&q->ixp_q_mbuf) = IX_MBUF_PKT_LEN(&q->ixp_q_mbuf) =
+                       ((IX_MBUF_MLEN(&q->ixp_q_mbuf) * 8) + 72 + 511) / 8;
+               tbuf = kmalloc(IX_MBUF_MLEN(&q->ixp_q_mbuf), SLAB_ATOMIC);
+               
+               if (IX_MBUF_MDATA(&q->ixp_q_mbuf) == NULL) {
+                       printk("ixp: kmalloc(%u, SLAB_ATOMIC) failed\n",
+                                       IX_MBUF_MLEN(&q->ixp_q_mbuf));
+                       q->ixp_q_crp->crp_etype = ENOMEM;
+                       goto done;
+               }
+               memcpy(tbuf, &(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_off], auth_len);
+
+               /* Set location in client buffer to copy hash into */
+               q->ixp_hash_dest =
+                       &(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_off + auth_len];
+
+               IX_MBUF_MDATA(&q->ixp_q_mbuf) = tbuf;
+
+               /* Set location in internal buffer for where hash starts */
+               q->ixp_hash_src = &(IX_MBUF_MDATA(&q->ixp_q_mbuf))[auth_len];
+
+               crypt_func = "ixCryptoAccHashPerform";
+               status = ixCryptoAccHashPerform(ixp->ixp_ctx.authCtx.authAlgo,
+                               &q->ixp_q_mbuf, ixp_hash_perform_cb, 0, auth_len, auth_len,
+                               &ixp->ixp_hash_key_id);
+       }
+       else {
+               crypt_func = "ixCryptoAccAuthCryptPerform";
+               status = ixCryptoAccAuthCryptPerform(ixp->ixp_ctx_id, &q->ixp_q_mbuf,
+                       NULL, auth_off, auth_len, crypt_off, crypt_len, icv_off,
+                       q->ixp_q_iv);
+       }
+
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+               return;
+
+       if (IX_CRYPTO_ACC_STATUS_QUEUE_FULL == status) {
+               q->ixp_q_crp->crp_etype = ENOMEM;
+               goto done;
+       }
+
+       printk("ixp: %s failed %u\n", crypt_func, status);
+       q->ixp_q_crp->crp_etype = EINVAL;
+
+done:
+       crypto_done(q->ixp_q_crp);
+       kmem_cache_free(qcache, q);
+}
+
+
+/*
+ * because we cannot process the Q from the Register callback
+ * we do it here on a task Q.
+ */
+
+static void
+ixp_process_pending(void *arg)
+{
+       struct ixp_data *ixp = arg;
+       struct ixp_q *q = NULL;
+
+       dprintk("%s(%p)\n", __FUNCTION__, arg);
+
+       if (!ixp)
+               return;
+
+       while (!list_empty(&ixp->ixp_q)) {
+               q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+               list_del(&q->ixp_q_list);
+               ixp_q_process(q);
+       }
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_process_pending_wq(struct work_struct *work)
+{
+       struct ixp_data *ixp = container_of(work, struct ixp_data,
+                                                               ixp_pending_work);
+       ixp_process_pending(ixp);
+}
+#endif
+
+/*
+ * callback for when context registration is complete
+ */
+
+static void
+ixp_register_cb(UINT32 ctx_id, IX_MBUF *bufp, IxCryptoAccStatus status)
+{
+       int i;
+       struct ixp_data *ixp;
+       struct ixp_q *q;
+
+       dprintk("%s(%d, %p, %d)\n", __FUNCTION__, ctx_id, bufp, status);
+
+       /*
+        * free any buffer passed in to this routine
+        */
+       if (bufp) {
+               IX_MBUF_MLEN(bufp) = IX_MBUF_PKT_LEN(bufp) = 0;
+               kfree(IX_MBUF_MDATA(bufp));
+               IX_MBUF_MDATA(bufp) = NULL;
+       }
+
+       for (i = 0; i < ixp_sesnum; i++) {
+               ixp = ixp_sessions[i];
+               if (ixp && ixp->ixp_ctx_id == ctx_id)
+                       break;
+       }
+       if (i >= ixp_sesnum) {
+               printk("ixp: invalid context id %d\n", ctx_id);
+               return;
+       }
+
+       if (IX_CRYPTO_ACC_STATUS_WAIT == status) {
+               /* this is normal to free the first of two buffers */
+               dprintk("ixp: register not finished yet.\n");
+               return;
+       }
+
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS != status) {
+               printk("ixp: register failed 0x%x\n", status);
+               while (!list_empty(&ixp->ixp_q)) {
+                       q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+                       list_del(&q->ixp_q_list);
+                       q->ixp_q_crp->crp_etype = EINVAL;
+                       crypto_done(q->ixp_q_crp);
+                       kmem_cache_free(qcache, q);
+               }
+               return;
+       }
+
+       /*
+        * we are now registered,  we cannot start processing the Q here
+        * or we get strange errors with AES (DES/3DES seem to be ok).
+        */
+       ixp->ixp_registered = 1;
+       schedule_work(&ixp->ixp_pending_work);
+}
+
+
+/*
+ * callback for when data processing is complete
+ */
+
+static void
+ixp_perform_cb(
+       UINT32 ctx_id,
+       IX_MBUF *sbufp,
+       IX_MBUF *dbufp,
+       IxCryptoAccStatus status)
+{
+       struct ixp_q *q;
+
+       dprintk("%s(%d, %p, %p, 0x%x)\n", __FUNCTION__, ctx_id, sbufp,
+                       dbufp, status);
+
+       if (sbufp == NULL) {
+               printk("ixp: NULL sbuf in ixp_perform_cb\n");
+               return;
+       }
+
+       q = IX_MBUF_PRIV(sbufp);
+       if (q == NULL) {
+               printk("ixp: NULL priv in ixp_perform_cb\n");
+               return;
+       }
+
+       if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+               printk("ixp: perform failed status=%d\n", status);
+               q->ixp_q_crp->crp_etype = EINVAL;
+       }
+
+       crypto_done(q->ixp_q_crp);
+       kmem_cache_free(qcache, q);
+}
+
+
+/*
+ * registration is not callable at IRQ time,  so we defer
+ * to a task queue,  this routines completes the registration for us
+ * when the task queue runs
+ *
+ * Unfortunately this means we cannot tell OCF that the driver is blocked,
+ * we do that on the next request.
+ */
+
+static void
+ixp_registration(void *arg)
+{
+       struct ixp_data *ixp = arg;
+       struct ixp_q *q = NULL;
+       IX_MBUF *pri = NULL, *sec = NULL;
+       int status = IX_CRYPTO_ACC_STATUS_SUCCESS;
+
+       if (!ixp) {
+               printk("ixp: ixp_registration with no arg\n");
+               return;
+       }
+
+       if (ixp->ixp_ctx_id != -1) {
+               ixCryptoAccCtxUnregister(ixp->ixp_ctx_id);
+               ixp->ixp_ctx_id = -1;
+       }
+
+       if (list_empty(&ixp->ixp_q)) {
+               printk("ixp: ixp_registration with no Q\n");
+               return;
+       }
+
+       /*
+        * setup the primary and secondary buffers
+        */
+       q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+       if (q->ixp_q_acrd) {
+               pri = &ixp->ixp_pri_mbuf;
+               sec = &ixp->ixp_sec_mbuf;
+               IX_MBUF_MLEN(pri)  = IX_MBUF_PKT_LEN(pri) = 128;
+               IX_MBUF_MDATA(pri) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+               IX_MBUF_MLEN(sec)  = IX_MBUF_PKT_LEN(sec) = 128;
+               IX_MBUF_MDATA(sec) = (unsigned char *) kmalloc(128, SLAB_ATOMIC);
+       }
+
+       /* Only need to register if a crypt op or HMAC op */
+       if (!(ixp->ixp_auth_alg == CRYPTO_SHA1 ||
+                               ixp->ixp_auth_alg == CRYPTO_MD5)) {
+               status = ixCryptoAccCtxRegister(
+                                       &ixp->ixp_ctx,
+                                       pri, sec,
+                                       ixp_register_cb,
+                                       ixp_perform_cb,
+                                       &ixp->ixp_ctx_id);
+       }
+       else {
+               /* Otherwise we start processing pending q */
+               schedule_work(&ixp->ixp_pending_work);
+       }
+
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+               return;
+
+       if (IX_CRYPTO_ACC_STATUS_EXCEED_MAX_TUNNELS == status) {
+               printk("ixp: ixCryptoAccCtxRegister failed (out of tunnels)\n");
+               ixp_blocked = 1;
+               /* perhaps we should return EGAIN on queued ops ? */
+               return;
+       }
+
+       printk("ixp: ixCryptoAccCtxRegister failed %d\n", status);
+       ixp->ixp_ctx_id = -1;
+
+       /*
+        * everything waiting is toasted
+        */
+       while (!list_empty(&ixp->ixp_q)) {
+               q = list_entry(ixp->ixp_q.next, struct ixp_q, ixp_q_list);
+               list_del(&q->ixp_q_list);
+               q->ixp_q_crp->crp_etype = ENOENT;
+               crypto_done(q->ixp_q_crp);
+               kmem_cache_free(qcache, q);
+       }
+}
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20)
+static void
+ixp_registration_wq(struct work_struct *work)
+{
+       struct ixp_data *ixp = container_of(work, struct ixp_data,
+                                                               ixp_registration_work);
+       ixp_registration(ixp);
+}
+#endif
+
+/*
+ * Process a request.
+ */
+static int
+ixp_process(device_t dev, struct cryptop *crp, int hint)
+{
+       struct ixp_data *ixp;
+       unsigned int lid;
+       struct ixp_q *q = NULL;
+       int status;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       /* Sanity check */
+       if (crp == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       crp->crp_etype = 0;
+
+       if (ixp_blocked)
+               return ERESTART;
+
+       if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               crp->crp_etype = EINVAL;
+               goto done;
+       }
+
+       /*
+        * find the session we are using
+        */
+
+       lid = crp->crp_sid & 0xffffffff;
+       if (lid >= ixp_sesnum || lid == 0 || ixp_sessions == NULL ||
+                       ixp_sessions[lid] == NULL) {
+               crp->crp_etype = ENOENT;
+               dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+               goto done;
+       }
+       ixp = ixp_sessions[lid];
+
+       /*
+        * setup a new request ready for queuing
+        */
+       q = kmem_cache_alloc(qcache, SLAB_ATOMIC);
+       if (q == NULL) {
+               dprintk("%s,%d: ENOMEM\n", __FILE__, __LINE__);
+               crp->crp_etype = ENOMEM;
+               goto done;
+       }
+       /*
+        * save some cycles by only zeroing the important bits
+        */
+       memset(&q->ixp_q_mbuf, 0, sizeof(q->ixp_q_mbuf));
+       q->ixp_q_ccrd = NULL;
+       q->ixp_q_acrd = NULL;
+       q->ixp_q_crp = crp;
+       q->ixp_q_data = ixp;
+
+       /*
+        * point the cipher and auth descriptors appropriately
+        * check that we have something to do
+        */
+       if (crp->crp_desc->crd_alg == ixp->ixp_cipher_alg)
+               q->ixp_q_ccrd = crp->crp_desc;
+       else if (crp->crp_desc->crd_alg == ixp->ixp_auth_alg)
+               q->ixp_q_acrd = crp->crp_desc;
+       else {
+               crp->crp_etype = ENOENT;
+               dprintk("%s,%d: bad desc match: ENOENT\n", __FILE__, __LINE__);
+               goto done;
+       }
+       if (crp->crp_desc->crd_next) {
+               if (crp->crp_desc->crd_next->crd_alg == ixp->ixp_cipher_alg)
+                       q->ixp_q_ccrd = crp->crp_desc->crd_next;
+               else if (crp->crp_desc->crd_next->crd_alg == ixp->ixp_auth_alg)
+                       q->ixp_q_acrd = crp->crp_desc->crd_next;
+               else {
+                       crp->crp_etype = ENOENT;
+                       dprintk("%s,%d: bad desc match: ENOENT\n", __FILE__, __LINE__);
+                       goto done;
+               }
+       }
+
+       /*
+        * If there is a direction change for this context then we mark it as
+        * unregistered and re-register is for the new direction.  This is not
+        * a very expensive operation and currently only tends to happen when
+        * user-space application are doing benchmarks
+        *
+        * DM - we should be checking for pending requests before unregistering.
+        */
+       if (q->ixp_q_ccrd && ixp->ixp_registered &&
+                       ixp->ixp_crd_flags != (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT)) {
+               dprintk("%s - detected direction change on session\n", __FUNCTION__);
+               ixp->ixp_registered = 0;
+       }
+
+       /*
+        * if we are registered,  call straight into the perform code
+        */
+       if (ixp->ixp_registered) {
+               ixp_q_process(q);
+               return 0;
+       }
+
+       /*
+        * the only part of the context not set in newsession is the direction
+        * dependent parts
+        */
+       if (q->ixp_q_ccrd) {
+               ixp->ixp_crd_flags = (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT);
+               if (q->ixp_q_ccrd->crd_flags & CRD_F_ENCRYPT) {
+                       ixp->ixp_ctx.operation = q->ixp_q_acrd ?
+                                       IX_CRYPTO_ACC_OP_ENCRYPT_AUTH : IX_CRYPTO_ACC_OP_ENCRYPT;
+               } else {
+                       ixp->ixp_ctx.operation = q->ixp_q_acrd ?
+                                       IX_CRYPTO_ACC_OP_AUTH_DECRYPT : IX_CRYPTO_ACC_OP_DECRYPT;
+               }
+       } else {
+               /* q->ixp_q_acrd must be set if we are here */
+               ixp->ixp_ctx.operation = IX_CRYPTO_ACC_OP_AUTH_CALC;
+       }
+
+       status = list_empty(&ixp->ixp_q);
+       list_add_tail(&q->ixp_q_list, &ixp->ixp_q);
+       if (status)
+               schedule_work(&ixp->ixp_registration_work);
+       return 0;
+
+done:
+       if (q)
+               kmem_cache_free(qcache, q);
+       crypto_done(crp);
+       return 0;
+}
+
+
+#ifdef __ixp46X
+/*
+ * key processing support for the ixp465
+ */
+
+
+/*
+ * copy a BN (LE) into a buffer (BE) an fill out the op appropriately
+ * assume zeroed and only copy bits that are significant
+ */
+
+static int
+ixp_copy_ibuf(struct crparam *p, IxCryptoAccPkeEauOperand *op, UINT32 *buf)
+{
+       unsigned char *src = (unsigned char *) p->crp_p;
+       unsigned char *dst;
+       int len, bits = p->crp_nbits;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       if (bits > MAX_IOP_SIZE * sizeof(UINT32) * 8) {
+               dprintk("%s - ibuf too big (%d > %d)\n", __FUNCTION__,
+                               bits, MAX_IOP_SIZE * sizeof(UINT32) * 8);
+               return -1;
+       }
+
+       len = (bits + 31) / 32; /* the number UINT32's needed */
+
+       dst = (unsigned char *) &buf[len];
+       dst--;
+
+       while (bits > 0) {
+               *dst-- = *src++;
+               bits -= 8;
+       }
+
+#if 0 /* no need to zero remaining bits as it is done during request alloc */
+       while (dst > (unsigned char *) buf)
+               *dst-- = '\0';
+#endif
+
+       op->pData = buf;
+       op->dataLen = len;
+       return 0;
+}
+
+/*
+ * copy out the result,  be as forgiving as we can about small output buffers
+ */
+
+static int
+ixp_copy_obuf(struct crparam *p, IxCryptoAccPkeEauOpResult *op, UINT32 *buf)
+{
+       unsigned char *dst = (unsigned char *) p->crp_p;
+       unsigned char *src = (unsigned char *) buf;
+       int len, z, bits = p->crp_nbits;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       len = op->dataLen * sizeof(UINT32);
+
+       /* skip leading zeroes to be small buffer friendly */
+       z = 0;
+       while (z < len && src[z] == '\0')
+               z++;
+
+       src += len;
+       src--;
+       len -= z;
+
+       while (len > 0 && bits > 0) {
+               *dst++ = *src--;
+               len--;
+               bits -= 8;
+       }
+
+       while (bits > 0) {
+               *dst++ = '\0';
+               bits -= 8;
+       }
+
+       if (len > 0) {
+               dprintk("%s - obuf is %d (z=%d, ob=%d) bytes too small\n",
+                               __FUNCTION__, len, z, p->crp_nbits / 8);
+               return -1;
+       }
+
+       return 0;
+}
+
+
+/*
+ * the parameter offsets for exp_mod
+ */
+
+#define IXP_PARAM_BASE 0
+#define IXP_PARAM_EXP  1
+#define IXP_PARAM_MOD  2
+#define IXP_PARAM_RES  3
+
+/*
+ * key processing complete callback,  is also used to start processing
+ * by passing a NULL for pResult
+ */
+
+static void
+ixp_kperform_cb(
+       IxCryptoAccPkeEauOperation operation,
+       IxCryptoAccPkeEauOpResult *pResult,
+       BOOL carryOrBorrow,
+       IxCryptoAccStatus status)
+{
+       struct ixp_pkq *q, *tmp;
+       unsigned long flags;
+
+       dprintk("%s(0x%x, %p, %d, 0x%x)\n", __FUNCTION__, operation, pResult,
+                       carryOrBorrow, status);
+
+       /* handle a completed request */
+       if (pResult) {
+               if (ixp_pk_cur && &ixp_pk_cur->pkq_result == pResult) {
+                       q = ixp_pk_cur;
+                       if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+                               dprintk("%s() - op failed 0x%x\n", __FUNCTION__, status);
+                               q->pkq_krp->krp_status = ERANGE; /* could do better */
+                       } else {
+                               /* copy out the result */
+                               if (ixp_copy_obuf(&q->pkq_krp->krp_param[IXP_PARAM_RES],
+                                               &q->pkq_result, q->pkq_obuf))
+                                       q->pkq_krp->krp_status = ERANGE;
+                       }
+                       crypto_kdone(q->pkq_krp);
+                       kfree(q);
+                       ixp_pk_cur = NULL;
+               } else
+                       printk("%s - callback with invalid result pointer\n", __FUNCTION__);
+       }
+
+       spin_lock_irqsave(&ixp_pkq_lock, flags);
+       if (ixp_pk_cur || list_empty(&ixp_pkq)) {
+               spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+               return;
+       }
+
+       list_for_each_entry_safe(q, tmp, &ixp_pkq, pkq_list) {
+
+               list_del(&q->pkq_list);
+               ixp_pk_cur = q;
+
+               spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+
+               status = ixCryptoAccPkeEauPerform(
+                               IX_CRYPTO_ACC_OP_EAU_MOD_EXP,
+                               &q->pkq_op,
+                               ixp_kperform_cb,
+                               &q->pkq_result);
+       
+               if (status == IX_CRYPTO_ACC_STATUS_SUCCESS) {
+                       dprintk("%s() - ixCryptoAccPkeEauPerform SUCCESS\n", __FUNCTION__);
+                       return; /* callback will return here for callback */
+               } else if (status == IX_CRYPTO_ACC_STATUS_RETRY) {
+                       printk("%s() - ixCryptoAccPkeEauPerform RETRY\n", __FUNCTION__);
+               } else {
+                       printk("%s() - ixCryptoAccPkeEauPerform failed %d\n",
+                                       __FUNCTION__, status);
+               }
+               q->pkq_krp->krp_status = ERANGE; /* could do better */
+               crypto_kdone(q->pkq_krp);
+               kfree(q);
+               spin_lock_irqsave(&ixp_pkq_lock, flags);
+       }
+       spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+}
+
+
+static int
+ixp_kprocess(device_t dev, struct cryptkop *krp, int hint)
+{
+       struct ixp_pkq *q;
+       int rc = 0;
+       unsigned long flags;
+
+       dprintk("%s l1=%d l2=%d l3=%d l4=%d\n", __FUNCTION__,
+                       krp->krp_param[IXP_PARAM_BASE].crp_nbits,
+                       krp->krp_param[IXP_PARAM_EXP].crp_nbits,
+                       krp->krp_param[IXP_PARAM_MOD].crp_nbits,
+                       krp->krp_param[IXP_PARAM_RES].crp_nbits);
+
+
+       if (krp->krp_op != CRK_MOD_EXP) {
+               krp->krp_status = EOPNOTSUPP;
+               goto err;
+       }
+
+       q = (struct ixp_pkq *) kmalloc(sizeof(*q), GFP_KERNEL);
+       if (q == NULL) {
+               krp->krp_status = ENOMEM;
+               goto err;
+       }
+
+       /*
+        * The PKE engine does not appear to zero the output buffer
+        * appropriately, so we need to do it all here.
+        */
+       memset(q, 0, sizeof(*q));
+
+       q->pkq_krp = krp;
+       INIT_LIST_HEAD(&q->pkq_list);
+
+       if (ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_BASE], &q->pkq_op.modExpOpr.M,
+                       q->pkq_ibuf0))
+               rc = 1;
+       if (!rc && ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_EXP],
+                               &q->pkq_op.modExpOpr.e, q->pkq_ibuf1))
+               rc = 2;
+       if (!rc && ixp_copy_ibuf(&krp->krp_param[IXP_PARAM_MOD],
+                               &q->pkq_op.modExpOpr.N, q->pkq_ibuf2))
+               rc = 3;
+
+       if (rc) {
+               kfree(q);
+               krp->krp_status = ERANGE;
+               goto err;
+       }
+
+       q->pkq_result.pData           = q->pkq_obuf;
+       q->pkq_result.dataLen         =
+                       (krp->krp_param[IXP_PARAM_RES].crp_nbits + 31) / 32;
+
+       spin_lock_irqsave(&ixp_pkq_lock, flags);
+       list_add_tail(&q->pkq_list, &ixp_pkq);
+       spin_unlock_irqrestore(&ixp_pkq_lock, flags);
+
+       if (!ixp_pk_cur)
+               ixp_kperform_cb(0, NULL, 0, 0);
+       return (0);
+
+err:
+       crypto_kdone(krp);
+       return (0);
+}
+
+
+
+#ifdef CONFIG_OCF_RANDOMHARVEST
+/*
+ * We run the random number generator output through SHA so that it
+ * is FIPS compliant.
+ */
+
+static volatile int sha_done = 0;
+static unsigned char sha_digest[20];
+
+static void
+ixp_hash_cb(UINT8 *digest, IxCryptoAccStatus status)
+{
+       dprintk("%s(%p, %d)\n", __FUNCTION__, digest, status);
+       if (sha_digest != digest)
+               printk("digest error\n");
+       if (IX_CRYPTO_ACC_STATUS_SUCCESS == status)
+               sha_done = 1;
+       else
+               sha_done = -status;
+}
+
+static int
+ixp_read_random(void *arg, u_int32_t *buf, int maxwords)
+{
+       IxCryptoAccStatus status;
+       int i, n, rc;
+
+       dprintk("%s(%p, %d)\n", __FUNCTION__, buf, maxwords);
+       memset(buf, 0, maxwords * sizeof(*buf));
+       status = ixCryptoAccPkePseudoRandomNumberGet(maxwords, buf);
+       if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+               dprintk("%s: ixCryptoAccPkePseudoRandomNumberGet failed %d\n",
+                               __FUNCTION__, status);
+               return 0;
+       }
+
+       /*
+        * run the random data through SHA to make it look more random
+        */
+
+       n = sizeof(sha_digest); /* process digest bytes at a time */
+
+       rc = 0;
+       for (i = 0; i < maxwords; i += n / sizeof(*buf)) {
+               if ((maxwords - i) * sizeof(*buf) < n)
+                       n = (maxwords - i) * sizeof(*buf);
+               sha_done = 0;
+               status = ixCryptoAccPkeHashPerform(IX_CRYPTO_ACC_AUTH_SHA1,
+                               (UINT8 *) &buf[i], n, ixp_hash_cb, sha_digest);
+               if (status != IX_CRYPTO_ACC_STATUS_SUCCESS) {
+                       dprintk("ixCryptoAccPkeHashPerform failed %d\n", status);
+                       return -EIO;
+               }
+               while (!sha_done)
+                       schedule();
+               if (sha_done < 0) {
+                       dprintk("ixCryptoAccPkeHashPerform failed CB %d\n", -sha_done);
+                       return 0;
+               }
+               memcpy(&buf[i], sha_digest, n);
+               rc += n / sizeof(*buf);;
+       }
+
+       return rc;
+}
+#endif /* CONFIG_OCF_RANDOMHARVEST */
+
+#endif /* __ixp46X */
+
+
+
+/*
+ * our driver startup and shutdown routines
+ */
+
+static int
+ixp_init(void)
+{
+       dprintk("%s(%p)\n", __FUNCTION__, ixp_init);
+
+       if (ixp_init_crypto && ixCryptoAccInit() != IX_CRYPTO_ACC_STATUS_SUCCESS)
+               printk("ixCryptoAccInit failed, assuming already initialised!\n");
+
+       qcache = kmem_cache_create("ixp4xx_q", sizeof(struct ixp_q), 0,
+                               SLAB_HWCACHE_ALIGN, NULL
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
+                               , NULL
+#endif
+                                 );
+       if (!qcache) {
+               printk("failed to create Qcache\n");
+               return -ENOENT;
+       }
+
+       memset(&ixpdev, 0, sizeof(ixpdev));
+       softc_device_init(&ixpdev, "ixp4xx", 0, ixp_methods);
+
+       ixp_id = crypto_get_driverid(softc_get_device(&ixpdev),
+                               CRYPTOCAP_F_HARDWARE);
+       if (ixp_id < 0)
+               panic("IXP/OCF crypto device cannot initialize!");
+
+#define        REGISTER(alg) \
+       crypto_register(ixp_id,alg,0,0)
+
+       REGISTER(CRYPTO_DES_CBC);
+       REGISTER(CRYPTO_3DES_CBC);
+       REGISTER(CRYPTO_RIJNDAEL128_CBC);
+#ifdef CONFIG_OCF_IXP4XX_SHA1_MD5
+       REGISTER(CRYPTO_MD5);
+       REGISTER(CRYPTO_SHA1);
+#endif
+       REGISTER(CRYPTO_MD5_HMAC);
+       REGISTER(CRYPTO_SHA1_HMAC);
+#undef REGISTER
+
+#ifdef __ixp46X
+       spin_lock_init(&ixp_pkq_lock);
+       /*
+        * we do not enable the go fast options here as they can potentially
+        * allow timing based attacks
+        *
+        * http://www.openssl.org/news/secadv_20030219.txt
+        */
+       ixCryptoAccPkeEauExpConfig(0, 0);
+       crypto_kregister(ixp_id, CRK_MOD_EXP, 0);
+#ifdef CONFIG_OCF_RANDOMHARVEST
+       crypto_rregister(ixp_id, ixp_read_random, NULL);
+#endif
+#endif
+
+       return 0;
+}
+
+static void
+ixp_exit(void)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       crypto_unregister_all(ixp_id);
+       ixp_id = -1;
+       kmem_cache_destroy(qcache);
+       qcache = NULL;
+}
+
+module_init(ixp_init);
+module_exit(ixp_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <dmccullough@cyberguard.com>");
+MODULE_DESCRIPTION("ixp (OCF module for IXP4xx crypto)");
--- /dev/null
+++ b/crypto/ocf/cryptodev.c
@@ -0,0 +1,1048 @@
+/*     $OpenBSD: cryptodev.c,v 1.52 2002/06/19 07:22:46 deraadt Exp $  */
+
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2001 Theo de Raadt
+ * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+__FBSDID("$FreeBSD: src/sys/opencrypto/cryptodev.c,v 1.34 2007/05/09 19:37:02 gnn Exp $");
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/list.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/unistd.h>
+#include <linux/module.h>
+#include <linux/wait.h>
+#include <linux/slab.h>
+#include <linux/fs.h>
+#include <linux/dcache.h>
+#include <linux/file.h>
+#include <linux/mount.h>
+#include <linux/miscdevice.h>
+#include <linux/version.h>
+#include <asm/uaccess.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+extern asmlinkage long sys_dup(unsigned int fildes);
+
+#define debug cryptodev_debug
+int cryptodev_debug = 0;
+module_param(cryptodev_debug, int, 0644);
+MODULE_PARM_DESC(cryptodev_debug, "Enable cryptodev debug");
+
+struct csession_info {
+       u_int16_t       blocksize;
+       u_int16_t       minkey, maxkey;
+
+       u_int16_t       keysize;
+       /* u_int16_t    hashsize;  */
+       u_int16_t       authsize;
+       /* u_int16_t    ctxsize; */
+};
+
+struct csession {
+       struct list_head        list;
+       u_int64_t       sid;
+       u_int32_t       ses;
+
+       wait_queue_head_t waitq;
+
+       u_int32_t       cipher;
+
+       u_int32_t       mac;
+
+       caddr_t         key;
+       int             keylen;
+       u_char          tmp_iv[EALG_MAX_BLOCK_LEN];
+
+       caddr_t         mackey;
+       int             mackeylen;
+
+       struct csession_info info;
+
+       struct iovec    iovec;
+       struct uio      uio;
+       int             error;
+};
+
+struct fcrypt {
+       struct list_head        csessions;
+       int             sesn;
+};
+
+static struct csession *csefind(struct fcrypt *, u_int);
+static int csedelete(struct fcrypt *, struct csession *);
+static struct csession *cseadd(struct fcrypt *, struct csession *);
+static struct csession *csecreate(struct fcrypt *, u_int64_t,
+               struct cryptoini *crie, struct cryptoini *cria, struct csession_info *);
+static int csefree(struct csession *);
+
+static int cryptodev_op(struct csession *, struct crypt_op *);
+static int cryptodev_key(struct crypt_kop *);
+static int cryptodev_find(struct crypt_find_op *);
+
+static int cryptodev_cb(void *);
+static int cryptodev_open(struct inode *inode, struct file *filp);
+
+/*
+ * Check a crypto identifier to see if it requested
+ * a valid crid and it's capabilities match.
+ */
+static int
+checkcrid(int crid)
+{
+       int hid = crid & ~(CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
+       int typ = crid & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE);
+       int caps = 0;
+       
+       /* if the user hasn't selected a driver, then just call newsession */
+       if (hid == 0 && typ != 0)
+               return 0;
+
+       caps = crypto_getcaps(hid);
+
+       /* didn't find anything with capabilities */
+       if (caps == 0) {
+               dprintk("%s: hid=%x typ=%x not matched\n", __FUNCTION__, hid, typ);
+               return EINVAL;
+       }
+       
+       /* the user didn't specify SW or HW, so the driver is ok */
+       if (typ == 0)
+               return 0;
+
+       /* if the type specified didn't match */
+       if (typ != (caps & (CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_HARDWARE))) {
+               dprintk("%s: hid=%x typ=%x caps=%x not matched\n", __FUNCTION__,
+                               hid, typ, caps);
+               return EINVAL;
+       }
+
+       return 0;
+}
+
+static int
+cryptodev_op(struct csession *cse, struct crypt_op *cop)
+{
+       struct cryptop *crp = NULL;
+       struct cryptodesc *crde = NULL, *crda = NULL;
+       int error = 0;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (cop->len > CRYPTO_MAX_DATA_LEN) {
+               dprintk("%s: %d > %d\n", __FUNCTION__, cop->len, CRYPTO_MAX_DATA_LEN);
+               return (E2BIG);
+       }
+
+       if (cse->info.blocksize && (cop->len % cse->info.blocksize) != 0) {
+               dprintk("%s: blocksize=%d len=%d\n", __FUNCTION__, cse->info.blocksize,
+                               cop->len);
+               return (EINVAL);
+       }
+
+       cse->uio.uio_iov = &cse->iovec;
+       cse->uio.uio_iovcnt = 1;
+       cse->uio.uio_offset = 0;
+#if 0
+       cse->uio.uio_resid = cop->len;
+       cse->uio.uio_segflg = UIO_SYSSPACE;
+       cse->uio.uio_rw = UIO_WRITE;
+       cse->uio.uio_td = td;
+#endif
+       cse->uio.uio_iov[0].iov_len = cop->len;
+       if (cse->info.authsize)
+               cse->uio.uio_iov[0].iov_len += cse->info.authsize;
+       cse->uio.uio_iov[0].iov_base = kmalloc(cse->uio.uio_iov[0].iov_len,
+                       GFP_KERNEL);
+
+       if (cse->uio.uio_iov[0].iov_base == NULL) {
+               dprintk("%s: iov_base kmalloc(%d) failed\n", __FUNCTION__,
+                               cse->uio.uio_iov[0].iov_len);
+               return (ENOMEM);
+       }
+
+       crp = crypto_getreq((cse->info.blocksize != 0) + (cse->info.authsize != 0));
+       if (crp == NULL) {
+               dprintk("%s: ENOMEM\n", __FUNCTION__);
+               error = ENOMEM;
+               goto bail;
+       }
+
+       if (cse->info.authsize) {
+               crda = crp->crp_desc;
+               if (cse->info.blocksize)
+                       crde = crda->crd_next;
+       } else {
+               if (cse->info.blocksize)
+                       crde = crp->crp_desc;
+               else {
+                       dprintk("%s: bad request\n", __FUNCTION__);
+                       error = EINVAL;
+                       goto bail;
+               }
+       }
+
+       if ((error = copy_from_user(cse->uio.uio_iov[0].iov_base, cop->src,
+                                       cop->len))) {
+               dprintk("%s: bad copy\n", __FUNCTION__);
+               goto bail;
+       }
+
+       if (crda) {
+               crda->crd_skip = 0;
+               crda->crd_len = cop->len;
+               crda->crd_inject = cop->len;
+
+               crda->crd_alg = cse->mac;
+               crda->crd_key = cse->mackey;
+               crda->crd_klen = cse->mackeylen * 8;
+       }
+
+       if (crde) {
+               if (cop->op == COP_ENCRYPT)
+                       crde->crd_flags |= CRD_F_ENCRYPT;
+               else
+                       crde->crd_flags &= ~CRD_F_ENCRYPT;
+               crde->crd_len = cop->len;
+               crde->crd_inject = 0;
+
+               crde->crd_alg = cse->cipher;
+               crde->crd_key = cse->key;
+               crde->crd_klen = cse->keylen * 8;
+       }
+
+       crp->crp_ilen = cse->uio.uio_iov[0].iov_len;
+       crp->crp_flags = CRYPTO_F_IOV | CRYPTO_F_CBIMM
+                      | (cop->flags & COP_F_BATCH);
+       crp->crp_buf = (caddr_t)&cse->uio;
+       crp->crp_callback = (int (*) (struct cryptop *)) cryptodev_cb;
+       crp->crp_sid = cse->sid;
+       crp->crp_opaque = (void *)cse;
+
+       if (cop->iv) {
+               if (crde == NULL) {
+                       error = EINVAL;
+                       dprintk("%s no crde\n", __FUNCTION__);
+                       goto bail;
+               }
+               if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
+                       error = EINVAL;
+                       dprintk("%s arc4 with IV\n", __FUNCTION__);
+                       goto bail;
+               }
+               if ((error = copy_from_user(cse->tmp_iv, cop->iv,
+                                               cse->info.blocksize))) {
+                       dprintk("%s bad iv copy\n", __FUNCTION__);
+                       goto bail;
+               }
+               memcpy(crde->crd_iv, cse->tmp_iv, cse->info.blocksize);
+               crde->crd_flags |= CRD_F_IV_EXPLICIT | CRD_F_IV_PRESENT;
+               crde->crd_skip = 0;
+       } else if (cse->cipher == CRYPTO_ARC4) { /* XXX use flag? */
+               crde->crd_skip = 0;
+       } else if (crde) {
+               crde->crd_flags |= CRD_F_IV_PRESENT;
+               crde->crd_skip = cse->info.blocksize;
+               crde->crd_len -= cse->info.blocksize;
+       }
+
+       if (cop->mac && crda == NULL) {
+               error = EINVAL;
+               dprintk("%s no crda\n", __FUNCTION__);
+               goto bail;
+       }
+
+       /*
+        * Let the dispatch run unlocked, then, interlock against the
+        * callback before checking if the operation completed and going
+        * to sleep.  This insures drivers don't inherit our lock which
+        * results in a lock order reversal between crypto_dispatch forced
+        * entry and the crypto_done callback into us.
+        */
+       error = crypto_dispatch(crp);
+       if (error == 0) {
+               dprintk("%s about to WAIT\n", __FUNCTION__);
+               /*
+                * we really need to wait for driver to complete to maintain
+                * state,  luckily interrupts will be remembered
+                */
+               do {
+                       error = wait_event_interruptible(crp->crp_waitq,
+                                       ((crp->crp_flags & CRYPTO_F_DONE) != 0));
+                       /*
+                        * we can't break out of this loop or we will leave behind
+                        * a huge mess,  however,  staying here means if your driver
+                        * is broken user applications can hang and not be killed.
+                        * The solution,  fix your driver :-)
+                        */
+                       if (error) {
+                               schedule();
+                               error = 0;
+                       }
+               } while ((crp->crp_flags & CRYPTO_F_DONE) == 0);
+               dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
+       }
+
+       if (crp->crp_etype != 0) {
+               error = crp->crp_etype;
+               dprintk("%s error in crp processing\n", __FUNCTION__);
+               goto bail;
+       }
+
+       if (cse->error) {
+               error = cse->error;
+               dprintk("%s error in cse processing\n", __FUNCTION__);
+               goto bail;
+       }
+
+       if (cop->dst && (error = copy_to_user(cop->dst,
+                                       cse->uio.uio_iov[0].iov_base, cop->len))) {
+               dprintk("%s bad dst copy\n", __FUNCTION__);
+               goto bail;
+       }
+
+       if (cop->mac &&
+                       (error=copy_to_user(cop->mac,
+                               (caddr_t)cse->uio.uio_iov[0].iov_base + cop->len,
+                               cse->info.authsize))) {
+               dprintk("%s bad mac copy\n", __FUNCTION__);
+               goto bail;
+       }
+
+bail:
+       if (crp)
+               crypto_freereq(crp);
+       if (cse->uio.uio_iov[0].iov_base)
+               kfree(cse->uio.uio_iov[0].iov_base);
+
+       return (error);
+}
+
+static int
+cryptodev_cb(void *op)
+{
+       struct cryptop *crp = (struct cryptop *) op;
+       struct csession *cse = (struct csession *)crp->crp_opaque;
+       int error;
+
+       dprintk("%s()\n", __FUNCTION__);
+       error = crp->crp_etype;
+       if (error == EAGAIN) {
+               crp->crp_flags &= ~CRYPTO_F_DONE;
+#ifdef NOTYET
+               /*
+                * DAVIDM I am fairly sure that we should turn this into a batch
+                * request to stop bad karma/lockup, revisit
+                */
+               crp->crp_flags |= CRYPTO_F_BATCH;
+#endif
+               return crypto_dispatch(crp);
+       }
+       if (error != 0 || (crp->crp_flags & CRYPTO_F_DONE)) {
+               cse->error = error;
+               wake_up_interruptible(&crp->crp_waitq);
+       }
+       return (0);
+}
+
+static int
+cryptodevkey_cb(void *op)
+{
+       struct cryptkop *krp = (struct cryptkop *) op;
+       dprintk("%s()\n", __FUNCTION__);
+       wake_up_interruptible(&krp->krp_waitq);
+       return (0);
+}
+
+static int
+cryptodev_key(struct crypt_kop *kop)
+{
+       struct cryptkop *krp = NULL;
+       int error = EINVAL;
+       int in, out, size, i;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (kop->crk_iparams + kop->crk_oparams > CRK_MAXPARAM) {
+               dprintk("%s params too big\n", __FUNCTION__);
+               return (EFBIG);
+       }
+
+       in = kop->crk_iparams;
+       out = kop->crk_oparams;
+       switch (kop->crk_op) {
+       case CRK_MOD_EXP:
+               if (in == 3 && out == 1)
+                       break;
+               return (EINVAL);
+       case CRK_MOD_EXP_CRT:
+               if (in == 6 && out == 1)
+                       break;
+               return (EINVAL);
+       case CRK_DSA_SIGN:
+               if (in == 5 && out == 2)
+                       break;
+               return (EINVAL);
+       case CRK_DSA_VERIFY:
+               if (in == 7 && out == 0)
+                       break;
+               return (EINVAL);
+       case CRK_DH_COMPUTE_KEY:
+               if (in == 3 && out == 1)
+                       break;
+               return (EINVAL);
+       default:
+               return (EINVAL);
+       }
+
+       krp = (struct cryptkop *)kmalloc(sizeof *krp, GFP_KERNEL);
+       if (!krp)
+               return (ENOMEM);
+       bzero(krp, sizeof *krp);
+       krp->krp_op = kop->crk_op;
+       krp->krp_status = kop->crk_status;
+       krp->krp_iparams = kop->crk_iparams;
+       krp->krp_oparams = kop->crk_oparams;
+       krp->krp_crid = kop->crk_crid;
+       krp->krp_status = 0;
+       krp->krp_flags = CRYPTO_KF_CBIMM;
+       krp->krp_callback = (int (*) (struct cryptkop *)) cryptodevkey_cb;
+       init_waitqueue_head(&krp->krp_waitq);
+
+       for (i = 0; i < CRK_MAXPARAM; i++)
+               krp->krp_param[i].crp_nbits = kop->crk_param[i].crp_nbits;
+       for (i = 0; i < krp->krp_iparams + krp->krp_oparams; i++) {
+               size = (krp->krp_param[i].crp_nbits + 7) / 8;
+               if (size == 0)
+                       continue;
+               krp->krp_param[i].crp_p = (caddr_t) kmalloc(size, GFP_KERNEL);
+               if (i >= krp->krp_iparams)
+                       continue;
+               error = copy_from_user(krp->krp_param[i].crp_p,
+                               kop->crk_param[i].crp_p, size);
+               if (error)
+                       goto fail;
+       }
+
+       error = crypto_kdispatch(krp);
+       if (error)
+               goto fail;
+
+       do {
+               error = wait_event_interruptible(krp->krp_waitq,
+                               ((krp->krp_flags & CRYPTO_KF_DONE) != 0));
+               /*
+                * we can't break out of this loop or we will leave behind
+                * a huge mess,  however,  staying here means if your driver
+                * is broken user applications can hang and not be killed.
+                * The solution,  fix your driver :-)
+                */
+               if (error) {
+                       schedule();
+                       error = 0;
+               }
+       } while ((krp->krp_flags & CRYPTO_KF_DONE) == 0);
+
+       dprintk("%s finished WAITING error=%d\n", __FUNCTION__, error);
+       
+       kop->crk_crid = krp->krp_crid;          /* device that did the work */
+       if (krp->krp_status != 0) {
+               error = krp->krp_status;
+               goto fail;
+       }
+
+       for (i = krp->krp_iparams; i < krp->krp_iparams + krp->krp_oparams; i++) {
+               size = (krp->krp_param[i].crp_nbits + 7) / 8;
+               if (size == 0)
+                       continue;
+               error = copy_to_user(kop->crk_param[i].crp_p, krp->krp_param[i].crp_p,
+                               size);
+               if (error)
+                       goto fail;
+       }
+
+fail:
+       if (krp) {
+               kop->crk_status = krp->krp_status;
+               for (i = 0; i < CRK_MAXPARAM; i++) {
+                       if (krp->krp_param[i].crp_p)
+                               kfree(krp->krp_param[i].crp_p);
+               }
+               kfree(krp);
+       }
+       return (error);
+}
+
+static int
+cryptodev_find(struct crypt_find_op *find)
+{
+       device_t dev;
+
+       if (find->crid != -1) {
+               dev = crypto_find_device_byhid(find->crid);
+               if (dev == NULL)
+                       return (ENOENT);
+               strlcpy(find->name, device_get_nameunit(dev),
+                   sizeof(find->name));
+       } else {
+               find->crid = crypto_find_driver(find->name);
+               if (find->crid == -1)
+                       return (ENOENT);
+       }
+       return (0);
+}
+
+static struct csession *
+csefind(struct fcrypt *fcr, u_int ses)
+{
+       struct csession *cse;
+
+       dprintk("%s()\n", __FUNCTION__);
+       list_for_each_entry(cse, &fcr->csessions, list)
+               if (cse->ses == ses)
+                       return (cse);
+       return (NULL);
+}
+
+static int
+csedelete(struct fcrypt *fcr, struct csession *cse_del)
+{
+       struct csession *cse;
+
+       dprintk("%s()\n", __FUNCTION__);
+       list_for_each_entry(cse, &fcr->csessions, list) {
+               if (cse == cse_del) {
+                       list_del(&cse->list);
+                       return (1);
+               }
+       }
+       return (0);
+}
+       
+static struct csession *
+cseadd(struct fcrypt *fcr, struct csession *cse)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       list_add_tail(&cse->list, &fcr->csessions);
+       cse->ses = fcr->sesn++;
+       return (cse);
+}
+
+static struct csession *
+csecreate(struct fcrypt *fcr, u_int64_t sid, struct cryptoini *crie,
+       struct cryptoini *cria, struct csession_info *info)
+{
+       struct csession *cse;
+
+       dprintk("%s()\n", __FUNCTION__);
+       cse = (struct csession *) kmalloc(sizeof(struct csession), GFP_KERNEL);
+       if (cse == NULL)
+               return NULL;
+       memset(cse, 0, sizeof(struct csession));
+
+       INIT_LIST_HEAD(&cse->list);
+       init_waitqueue_head(&cse->waitq);
+
+       cse->key = crie->cri_key;
+       cse->keylen = crie->cri_klen/8;
+       cse->mackey = cria->cri_key;
+       cse->mackeylen = cria->cri_klen/8;
+       cse->sid = sid;
+       cse->cipher = crie->cri_alg;
+       cse->mac = cria->cri_alg;
+       cse->info = *info;
+       cseadd(fcr, cse);
+       return (cse);
+}
+
+static int
+csefree(struct csession *cse)
+{
+       int error;
+
+       dprintk("%s()\n", __FUNCTION__);
+       error = crypto_freesession(cse->sid);
+       if (cse->key)
+               kfree(cse->key);
+       if (cse->mackey)
+               kfree(cse->mackey);
+       kfree(cse);
+       return(error);
+}
+
+static int
+cryptodev_ioctl(
+       struct inode *inode,
+       struct file *filp,
+       unsigned int cmd,
+       unsigned long arg)
+{
+       struct cryptoini cria, crie;
+       struct fcrypt *fcr = filp->private_data;
+       struct csession *cse;
+       struct csession_info info;
+       struct session2_op sop;
+       struct crypt_op cop;
+       struct crypt_kop kop;
+       struct crypt_find_op fop;
+       u_int64_t sid;
+       u_int32_t ses;
+       int feat, fd, error = 0, crid;
+       mm_segment_t fs;
+
+       dprintk("%s(cmd=%x arg=%lx)\n", __FUNCTION__, cmd, arg);
+
+       switch (cmd) {
+
+       case CRIOGET: {
+               dprintk("%s(CRIOGET)\n", __FUNCTION__);
+               fs = get_fs();
+               set_fs(get_ds());
+               for (fd = 0; fd < files_fdtable(current->files)->max_fds; fd++)
+                       if (files_fdtable(current->files)->fd[fd] == filp)
+                               break;
+               fd = sys_dup(fd);
+               set_fs(fs);
+               put_user(fd, (int *) arg);
+               return IS_ERR_VALUE(fd) ? fd : 0;
+               }
+
+#define        CIOCGSESSSTR    (cmd == CIOCGSESSION ? "CIOCGSESSION" : "CIOCGSESSION2")
+       case CIOCGSESSION:
+       case CIOCGSESSION2:
+               dprintk("%s(%s)\n", __FUNCTION__, CIOCGSESSSTR);
+               memset(&crie, 0, sizeof(crie));
+               memset(&cria, 0, sizeof(cria));
+               memset(&info, 0, sizeof(info));
+               memset(&sop, 0, sizeof(sop));
+
+               if (copy_from_user(&sop, (void*)arg, (cmd == CIOCGSESSION) ?
+                                       sizeof(struct session_op) : sizeof(sop))) {
+                       dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+                       error = EFAULT;
+                       goto bail;
+               }
+
+               switch (sop.cipher) {
+               case 0:
+                       dprintk("%s(%s) - no cipher\n", __FUNCTION__, CIOCGSESSSTR);
+                       break;
+               case CRYPTO_NULL_CBC:
+                       info.blocksize = NULL_BLOCK_LEN;
+                       info.minkey = NULL_MIN_KEY_LEN;
+                       info.maxkey = NULL_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_DES_CBC:
+                       info.blocksize = DES_BLOCK_LEN;
+                       info.minkey = DES_MIN_KEY_LEN;
+                       info.maxkey = DES_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_3DES_CBC:
+                       info.blocksize = DES3_BLOCK_LEN;
+                       info.minkey = DES3_MIN_KEY_LEN;
+                       info.maxkey = DES3_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_BLF_CBC:
+                       info.blocksize = BLOWFISH_BLOCK_LEN;
+                       info.minkey = BLOWFISH_MIN_KEY_LEN;
+                       info.maxkey = BLOWFISH_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_CAST_CBC:
+                       info.blocksize = CAST128_BLOCK_LEN;
+                       info.minkey = CAST128_MIN_KEY_LEN;
+                       info.maxkey = CAST128_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_SKIPJACK_CBC:
+                       info.blocksize = SKIPJACK_BLOCK_LEN;
+                       info.minkey = SKIPJACK_MIN_KEY_LEN;
+                       info.maxkey = SKIPJACK_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_AES_CBC:
+                       info.blocksize = AES_BLOCK_LEN;
+                       info.minkey = AES_MIN_KEY_LEN;
+                       info.maxkey = AES_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_ARC4:
+                       info.blocksize = ARC4_BLOCK_LEN;
+                       info.minkey = ARC4_MIN_KEY_LEN;
+                       info.maxkey = ARC4_MAX_KEY_LEN;
+                       break;
+               case CRYPTO_CAMELLIA_CBC:
+                       info.blocksize = CAMELLIA_BLOCK_LEN;
+                       info.minkey = CAMELLIA_MIN_KEY_LEN;
+                       info.maxkey = CAMELLIA_MAX_KEY_LEN;
+                       break;
+               default:
+                       dprintk("%s(%s) - bad cipher\n", __FUNCTION__, CIOCGSESSSTR);
+                       error = EINVAL;
+                       goto bail;
+               }
+
+               switch (sop.mac) {
+               case 0:
+                       dprintk("%s(%s) - no mac\n", __FUNCTION__, CIOCGSESSSTR);
+                       break;
+               case CRYPTO_NULL_HMAC:
+                       info.authsize = NULL_HASH_LEN;
+                       break;
+               case CRYPTO_MD5:
+                       info.authsize = MD5_HASH_LEN;
+                       break;
+               case CRYPTO_SHA1:
+                       info.authsize = SHA1_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_256:
+                       info.authsize = SHA2_256_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_384:
+                       info.authsize = SHA2_384_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_512:
+                       info.authsize = SHA2_512_HASH_LEN;
+                       break;
+               case CRYPTO_RIPEMD160:
+                       info.authsize = RIPEMD160_HASH_LEN;
+                       break;
+               case CRYPTO_MD5_HMAC:
+                       info.authsize = MD5_HASH_LEN;
+                       break;
+               case CRYPTO_SHA1_HMAC:
+                       info.authsize = SHA1_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_256_HMAC:
+                       info.authsize = SHA2_256_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_384_HMAC:
+                       info.authsize = SHA2_384_HASH_LEN;
+                       break;
+               case CRYPTO_SHA2_512_HMAC:
+                       info.authsize = SHA2_512_HASH_LEN;
+                       break;
+               case CRYPTO_RIPEMD160_HMAC:
+                       info.authsize = RIPEMD160_HASH_LEN;
+                       break;
+               default:
+                       dprintk("%s(%s) - bad mac\n", __FUNCTION__, CIOCGSESSSTR);
+                       error = EINVAL;
+                       goto bail;
+               }
+
+               if (info.blocksize) {
+                       crie.cri_alg = sop.cipher;
+                       crie.cri_klen = sop.keylen * 8;
+                       if ((info.maxkey && sop.keylen > info.maxkey) ||
+                                       sop.keylen < info.minkey) {
+                               dprintk("%s(%s) - bad key\n", __FUNCTION__, CIOCGSESSSTR);
+                               error = EINVAL;
+                               goto bail;
+                       }
+
+                       crie.cri_key = (u_int8_t *) kmalloc(crie.cri_klen/8+1, GFP_KERNEL);
+                       if (copy_from_user(crie.cri_key, sop.key,
+                                                       crie.cri_klen/8)) {
+                               dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+                               error = EFAULT;
+                               goto bail;
+                       }
+                       if (info.authsize)
+                               crie.cri_next = &cria;
+               }
+
+               if (info.authsize) {
+                       cria.cri_alg = sop.mac;
+                       cria.cri_klen = sop.mackeylen * 8;
+                       if ((info.maxkey && sop.mackeylen > info.maxkey) ||
+                                       sop.keylen < info.minkey) {
+                               dprintk("%s(%s) - mackeylen %d\n", __FUNCTION__, CIOCGSESSSTR,
+                                               sop.mackeylen);
+                               error = EINVAL;
+                               goto bail;
+                       }
+
+                       if (cria.cri_klen) {
+                               cria.cri_key = (u_int8_t *) kmalloc(cria.cri_klen/8,GFP_KERNEL);
+                               if (copy_from_user(cria.cri_key, sop.mackey,
+                                                               cria.cri_klen / 8)) {
+                                       dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+                                       error = EFAULT;
+                                       goto bail;
+                               }
+                       }
+               }
+
+               /* NB: CIOGSESSION2 has the crid */
+               if (cmd == CIOCGSESSION2) {
+                       crid = sop.crid;
+                       error = checkcrid(crid);
+                       if (error) {
+                               dprintk("%s(%s) - checkcrid %x\n", __FUNCTION__,
+                                               CIOCGSESSSTR, error);
+                               goto bail;
+                       }
+               } else {
+                       /* allow either HW or SW to be used */
+                       crid = CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE;
+               }
+               error = crypto_newsession(&sid, (info.blocksize ? &crie : &cria), crid);
+               if (error) {
+                       dprintk("%s(%s) - newsession %d\n",__FUNCTION__,CIOCGSESSSTR,error);
+                       goto bail;
+               }
+
+               cse = csecreate(fcr, sid, &crie, &cria, &info);
+               if (cse == NULL) {
+                       crypto_freesession(sid);
+                       error = EINVAL;
+                       dprintk("%s(%s) - csecreate failed\n", __FUNCTION__, CIOCGSESSSTR);
+                       goto bail;
+               }
+               sop.ses = cse->ses;
+
+               if (cmd == CIOCGSESSION2) {
+                       /* return hardware/driver id */
+                       sop.crid = CRYPTO_SESID2HID(cse->sid);
+               }
+
+               if (copy_to_user((void*)arg, &sop, (cmd == CIOCGSESSION) ?
+                                       sizeof(struct session_op) : sizeof(sop))) {
+                       dprintk("%s(%s) - bad copy\n", __FUNCTION__, CIOCGSESSSTR);
+                       error = EFAULT;
+               }
+bail:
+               if (error) {
+                       dprintk("%s(%s) - bail %d\n", __FUNCTION__, CIOCGSESSSTR, error);
+                       if (crie.cri_key)
+                               kfree(crie.cri_key);
+                       if (cria.cri_key)
+                               kfree(cria.cri_key);
+               }
+               break;
+       case CIOCFSESSION:
+               dprintk("%s(CIOCFSESSION)\n", __FUNCTION__);
+               get_user(ses, (uint32_t*)arg);
+               cse = csefind(fcr, ses);
+               if (cse == NULL) {
+                       error = EINVAL;
+                       dprintk("%s(CIOCFSESSION) - Fail %d\n", __FUNCTION__, error);
+                       break;
+               }
+               csedelete(fcr, cse);
+               error = csefree(cse);
+               break;
+       case CIOCCRYPT:
+               dprintk("%s(CIOCCRYPT)\n", __FUNCTION__);
+               if(copy_from_user(&cop, (void*)arg, sizeof(cop))) {
+                       dprintk("%s(CIOCCRYPT) - bad copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               cse = csefind(fcr, cop.ses);
+               if (cse == NULL) {
+                       error = EINVAL;
+                       dprintk("%s(CIOCCRYPT) - Fail %d\n", __FUNCTION__, error);
+                       break;
+               }
+               error = cryptodev_op(cse, &cop);
+               if(copy_to_user((void*)arg, &cop, sizeof(cop))) {
+                       dprintk("%s(CIOCCRYPT) - bad return copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               break;
+       case CIOCKEY:
+       case CIOCKEY2:
+               dprintk("%s(CIOCKEY)\n", __FUNCTION__);
+               if (!crypto_userasymcrypto)
+                       return (EPERM);         /* XXX compat? */
+               if(copy_from_user(&kop, (void*)arg, sizeof(kop))) {
+                       dprintk("%s(CIOCKEY) - bad copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               if (cmd == CIOCKEY) {
+                       /* NB: crypto core enforces s/w driver use */
+                       kop.crk_crid =
+                           CRYPTOCAP_F_HARDWARE | CRYPTOCAP_F_SOFTWARE;
+               }
+               error = cryptodev_key(&kop);
+               if(copy_to_user((void*)arg, &kop, sizeof(kop))) {
+                       dprintk("%s(CIOCGKEY) - bad return copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               break;
+       case CIOCASYMFEAT:
+               dprintk("%s(CIOCASYMFEAT)\n", __FUNCTION__);
+               if (!crypto_userasymcrypto) {
+                       /*
+                        * NB: if user asym crypto operations are
+                        * not permitted return "no algorithms"
+                        * so well-behaved applications will just
+                        * fallback to doing them in software.
+                        */
+                       feat = 0;
+               } else
+                       error = crypto_getfeat(&feat);
+               if (!error) {
+                 error = copy_to_user((void*)arg, &feat, sizeof(feat));
+               }
+               break;
+       case CIOCFINDDEV:
+               if (copy_from_user(&fop, (void*)arg, sizeof(fop))) {
+                       dprintk("%s(CIOCFINDDEV) - bad copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               error = cryptodev_find(&fop);
+               if (copy_to_user((void*)arg, &fop, sizeof(fop))) {
+                       dprintk("%s(CIOCFINDDEV) - bad return copy\n", __FUNCTION__);
+                       error = EFAULT;
+                       goto bail;
+               }
+               break;
+       default:
+               dprintk("%s(unknown ioctl 0x%x)\n", __FUNCTION__, cmd);
+               error = EINVAL;
+               break;
+       }
+       return(-error);
+}
+
+#ifdef HAVE_UNLOCKED_IOCTL
+static long
+cryptodev_unlocked_ioctl(
+       struct file *filp,
+       unsigned int cmd,
+       unsigned long arg)
+{
+       return cryptodev_ioctl(NULL, filp, cmd, arg);
+}
+#endif
+
+static int
+cryptodev_open(struct inode *inode, struct file *filp)
+{
+       struct fcrypt *fcr;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (filp->private_data) {
+               printk("cryptodev: Private data already exists !\n");
+               return(0);
+       }
+
+       fcr = kmalloc(sizeof(*fcr), GFP_KERNEL);
+       if (!fcr) {
+               dprintk("%s() - malloc failed\n", __FUNCTION__);
+               return(-ENOMEM);
+       }
+       memset(fcr, 0, sizeof(*fcr));
+
+       INIT_LIST_HEAD(&fcr->csessions);
+       filp->private_data = fcr;
+       return(0);
+}
+
+static int
+cryptodev_release(struct inode *inode, struct file *filp)
+{
+       struct fcrypt *fcr = filp->private_data;
+       struct csession *cse, *tmp;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (!filp) {
+               printk("cryptodev: No private data on release\n");
+               return(0);
+       }
+
+       list_for_each_entry_safe(cse, tmp, &fcr->csessions, list) {
+               list_del(&cse->list);
+               (void)csefree(cse);
+       }
+       filp->private_data = NULL;
+       kfree(fcr);
+       return(0);
+}
+
+static struct file_operations cryptodev_fops = {
+       .owner = THIS_MODULE,
+       .open = cryptodev_open,
+       .release = cryptodev_release,
+       .ioctl = cryptodev_ioctl,
+#ifdef HAVE_UNLOCKED_IOCTL
+       .unlocked_ioctl = cryptodev_unlocked_ioctl,
+#endif
+};
+
+static struct miscdevice cryptodev = {
+       .minor = CRYPTODEV_MINOR,
+       .name = "crypto",
+       .fops = &cryptodev_fops,
+};
+
+static int __init
+cryptodev_init(void)
+{
+       int rc;
+
+       dprintk("%s(%p)\n", __FUNCTION__, cryptodev_init);
+       rc = misc_register(&cryptodev);
+       if (rc) {
+               printk(KERN_ERR "cryptodev: registration of /dev/crypto failed\n");
+               return(rc);
+       }
+
+       return(0);
+}
+
+static void __exit
+cryptodev_exit(void)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       misc_deregister(&cryptodev);
+}
+
+module_init(cryptodev_init);
+module_exit(cryptodev_exit);
+
+MODULE_LICENSE("BSD");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Cryptodev (user interface to OCF)");
--- /dev/null
+++ b/crypto/ocf/cryptodev.h
@@ -0,0 +1,478 @@
+/*     $FreeBSD: src/sys/opencrypto/cryptodev.h,v 1.25 2007/05/09 19:37:02 gnn Exp $   */
+/*     $OpenBSD: cryptodev.h,v 1.31 2002/06/11 11:14:29 beck Exp $     */
+
+/*-
+ * Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * The author of this code is Angelos D. Keromytis (angelos@cis.upenn.edu)
+ * Copyright (c) 2002-2006 Sam Leffler, Errno Consulting
+ *
+ * This code was written by Angelos D. Keromytis in Athens, Greece, in
+ * February 2000. Network Security Technologies Inc. (NSTI) kindly
+ * supported the development of this code.
+ *
+ * Copyright (c) 2000 Angelos D. Keromytis
+ *
+ * Permission to use, copy, and modify this software with or without fee
+ * is hereby granted, provided that this entire notice is included in
+ * all source code copies of any software which is or includes a copy or
+ * modification of this software.
+ *
+ * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY
+ * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE
+ * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR
+ * PURPOSE.
+ *
+ * Copyright (c) 2001 Theo de Raadt
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Effort sponsored in part by the Defense Advanced Research Projects
+ * Agency (DARPA) and Air Force Research Laboratory, Air Force
+ * Materiel Command, USAF, under agreement number F30602-01-2-0537.
+ *
+ */
+
+#ifndef _CRYPTO_CRYPTO_H_
+#define _CRYPTO_CRYPTO_H_
+
+/* Some initial values */
+#define CRYPTO_DRIVERS_INITIAL 4
+#define CRYPTO_SW_SESSIONS     32
+
+/* Hash values */
+#define NULL_HASH_LEN          0
+#define MD5_HASH_LEN           16
+#define SHA1_HASH_LEN          20
+#define RIPEMD160_HASH_LEN     20
+#define SHA2_256_HASH_LEN      32
+#define SHA2_384_HASH_LEN      48
+#define SHA2_512_HASH_LEN      64
+#define MD5_KPDK_HASH_LEN      16
+#define SHA1_KPDK_HASH_LEN     20
+/* Maximum hash algorithm result length */
+#define HASH_MAX_LEN           SHA2_512_HASH_LEN /* Keep this updated */
+
+/* HMAC values */
+#define NULL_HMAC_BLOCK_LEN                    1
+#define MD5_HMAC_BLOCK_LEN                     64
+#define SHA1_HMAC_BLOCK_LEN                    64
+#define RIPEMD160_HMAC_BLOCK_LEN       64
+#define SHA2_256_HMAC_BLOCK_LEN                64
+#define SHA2_384_HMAC_BLOCK_LEN                128
+#define SHA2_512_HMAC_BLOCK_LEN                128
+/* Maximum HMAC block length */
+#define HMAC_MAX_BLOCK_LEN             SHA2_512_HMAC_BLOCK_LEN /* Keep this updated */
+#define HMAC_IPAD_VAL                  0x36
+#define HMAC_OPAD_VAL                  0x5C
+
+/* Encryption algorithm block sizes */
+#define NULL_BLOCK_LEN                 1
+#define DES_BLOCK_LEN                  8
+#define DES3_BLOCK_LEN                 8
+#define BLOWFISH_BLOCK_LEN             8
+#define SKIPJACK_BLOCK_LEN             8
+#define CAST128_BLOCK_LEN              8
+#define RIJNDAEL128_BLOCK_LEN  16
+#define AES_BLOCK_LEN                  RIJNDAEL128_BLOCK_LEN
+#define CAMELLIA_BLOCK_LEN             16
+#define ARC4_BLOCK_LEN                 1
+#define EALG_MAX_BLOCK_LEN             AES_BLOCK_LEN /* Keep this updated */
+
+/* Encryption algorithm min and max key sizes */
+#define NULL_MIN_KEY_LEN               0
+#define NULL_MAX_KEY_LEN               0
+#define DES_MIN_KEY_LEN                        8
+#define DES_MAX_KEY_LEN                        8
+#define DES3_MIN_KEY_LEN               24
+#define DES3_MAX_KEY_LEN               24
+#define BLOWFISH_MIN_KEY_LEN   4
+#define BLOWFISH_MAX_KEY_LEN   56
+#define SKIPJACK_MIN_KEY_LEN   10
+#define SKIPJACK_MAX_KEY_LEN   10
+#define CAST128_MIN_KEY_LEN            5
+#define CAST128_MAX_KEY_LEN            16
+#define RIJNDAEL128_MIN_KEY_LEN        16
+#define RIJNDAEL128_MAX_KEY_LEN        32
+#define AES_MIN_KEY_LEN                        RIJNDAEL128_MIN_KEY_LEN
+#define AES_MAX_KEY_LEN                        RIJNDAEL128_MAX_KEY_LEN
+#define CAMELLIA_MIN_KEY_LEN   16
+#define CAMELLIA_MAX_KEY_LEN   32
+#define ARC4_MIN_KEY_LEN               1
+#define ARC4_MAX_KEY_LEN               256
+
+/* Max size of data that can be processed */
+#define CRYPTO_MAX_DATA_LEN            64*1024 - 1
+
+#define CRYPTO_ALGORITHM_MIN   1
+#define CRYPTO_DES_CBC                 1
+#define CRYPTO_3DES_CBC                        2
+#define CRYPTO_BLF_CBC                 3
+#define CRYPTO_CAST_CBC                        4
+#define CRYPTO_SKIPJACK_CBC            5
+#define CRYPTO_MD5_HMAC                        6
+#define CRYPTO_SHA1_HMAC               7
+#define CRYPTO_RIPEMD160_HMAC  8
+#define CRYPTO_MD5_KPDK                        9
+#define CRYPTO_SHA1_KPDK               10
+#define CRYPTO_RIJNDAEL128_CBC 11 /* 128 bit blocksize */
+#define CRYPTO_AES_CBC                 11 /* 128 bit blocksize -- the same as above */
+#define CRYPTO_ARC4                            12
+#define CRYPTO_MD5                             13
+#define CRYPTO_SHA1                            14
+#define CRYPTO_NULL_HMAC               15
+#define CRYPTO_NULL_CBC                        16
+#define CRYPTO_DEFLATE_COMP            17 /* Deflate compression algorithm */
+#define CRYPTO_SHA2_256_HMAC   18
+#define CRYPTO_SHA2_384_HMAC   19
+#define CRYPTO_SHA2_512_HMAC   20
+#define CRYPTO_CAMELLIA_CBC            21
+#define CRYPTO_SHA2_256                        22
+#define CRYPTO_SHA2_384                        23
+#define CRYPTO_SHA2_512                        24
+#define CRYPTO_RIPEMD160               25
+#define CRYPTO_ALGORITHM_MAX   25 /* Keep updated - see below */
+
+/* Algorithm flags */
+#define CRYPTO_ALG_FLAG_SUPPORTED      0x01 /* Algorithm is supported */
+#define CRYPTO_ALG_FLAG_RNG_ENABLE     0x02 /* Has HW RNG for DH/DSA */
+#define CRYPTO_ALG_FLAG_DSA_SHA                0x04 /* Can do SHA on msg */
+
+/*
+ * Crypto driver/device flags.  They can set in the crid
+ * parameter when creating a session or submitting a key
+ * op to affect the device/driver assigned.  If neither
+ * of these are specified then the crid is assumed to hold
+ * the driver id of an existing (and suitable) device that
+ * must be used to satisfy the request.
+ */
+#define CRYPTO_FLAG_HARDWARE   0x01000000      /* hardware accelerated */
+#define CRYPTO_FLAG_SOFTWARE   0x02000000      /* software implementation */
+
+/* NB: deprecated */
+struct session_op {
+       u_int32_t       cipher;         /* ie. CRYPTO_DES_CBC */
+       u_int32_t       mac;            /* ie. CRYPTO_MD5_HMAC */
+
+       u_int32_t       keylen;         /* cipher key */
+       caddr_t         key;
+       int             mackeylen;      /* mac key */
+       caddr_t         mackey;
+
+       u_int32_t       ses;            /* returns: session # */ 
+};
+
+struct session2_op {
+       u_int32_t       cipher;         /* ie. CRYPTO_DES_CBC */
+       u_int32_t       mac;            /* ie. CRYPTO_MD5_HMAC */
+
+       u_int32_t       keylen;         /* cipher key */
+       caddr_t         key;
+       int             mackeylen;      /* mac key */
+       caddr_t         mackey;
+
+       u_int32_t       ses;            /* returns: session # */ 
+       int             crid;           /* driver id + flags (rw) */
+       int             pad[4];         /* for future expansion */
+};
+
+struct crypt_op {
+       u_int32_t       ses;
+       u_int16_t       op;             /* i.e. COP_ENCRYPT */
+#define COP_NONE       0
+#define COP_ENCRYPT    1
+#define COP_DECRYPT    2
+       u_int16_t       flags;
+#define        COP_F_BATCH     0x0008          /* Batch op if possible */
+       u_int           len;
+       caddr_t         src, dst;       /* become iov[] inside kernel */
+       caddr_t         mac;            /* must be big enough for chosen MAC */
+       caddr_t         iv;
+};
+
+/*
+ * Parameters for looking up a crypto driver/device by
+ * device name or by id.  The latter are returned for
+ * created sessions (crid) and completed key operations.
+ */
+struct crypt_find_op {
+       int             crid;           /* driver id + flags */
+       char            name[32];       /* device/driver name */
+};
+
+/* bignum parameter, in packed bytes, ... */
+struct crparam {
+       caddr_t         crp_p;
+       u_int           crp_nbits;
+};
+
+#define CRK_MAXPARAM   8
+
+struct crypt_kop {
+       u_int           crk_op;         /* ie. CRK_MOD_EXP or other */
+       u_int           crk_status;     /* return status */
+       u_short         crk_iparams;    /* # of input parameters */
+       u_short         crk_oparams;    /* # of output parameters */
+       u_int           crk_crid;       /* NB: only used by CIOCKEY2 (rw) */
+       struct crparam  crk_param[CRK_MAXPARAM];
+};
+#define CRK_ALGORITM_MIN       0
+#define CRK_MOD_EXP            0
+#define CRK_MOD_EXP_CRT                1
+#define CRK_DSA_SIGN           2
+#define CRK_DSA_VERIFY         3
+#define CRK_DH_COMPUTE_KEY     4
+#define CRK_ALGORITHM_MAX      4 /* Keep updated - see below */
+
+#define CRF_MOD_EXP            (1 << CRK_MOD_EXP)
+#define CRF_MOD_EXP_CRT                (1 << CRK_MOD_EXP_CRT)
+#define CRF_DSA_SIGN           (1 << CRK_DSA_SIGN)
+#define CRF_DSA_VERIFY         (1 << CRK_DSA_VERIFY)
+#define CRF_DH_COMPUTE_KEY     (1 << CRK_DH_COMPUTE_KEY)
+
+/*
+ * done against open of /dev/crypto, to get a cloned descriptor.
+ * Please use F_SETFD against the cloned descriptor.
+ */
+#define CRIOGET                _IOWR('c', 100, u_int32_t)
+#define CRIOASYMFEAT   CIOCASYMFEAT
+#define CRIOFINDDEV    CIOCFINDDEV
+
+/* the following are done against the cloned descriptor */
+#define CIOCGSESSION   _IOWR('c', 101, struct session_op)
+#define CIOCFSESSION   _IOW('c', 102, u_int32_t)
+#define CIOCCRYPT      _IOWR('c', 103, struct crypt_op)
+#define CIOCKEY                _IOWR('c', 104, struct crypt_kop)
+#define CIOCASYMFEAT   _IOR('c', 105, u_int32_t)
+#define CIOCGSESSION2  _IOWR('c', 106, struct session2_op)
+#define CIOCKEY2       _IOWR('c', 107, struct crypt_kop)
+#define CIOCFINDDEV    _IOWR('c', 108, struct crypt_find_op)
+
+struct cryptotstat {
+       struct timespec acc;            /* total accumulated time */
+       struct timespec min;            /* min time */
+       struct timespec max;            /* max time */
+       u_int32_t       count;          /* number of observations */
+};
+
+struct cryptostats {
+       u_int32_t       cs_ops;         /* symmetric crypto ops submitted */
+       u_int32_t       cs_errs;        /* symmetric crypto ops that failed */
+       u_int32_t       cs_kops;        /* asymetric/key ops submitted */
+       u_int32_t       cs_kerrs;       /* asymetric/key ops that failed */
+       u_int32_t       cs_intrs;       /* crypto swi thread activations */
+       u_int32_t       cs_rets;        /* crypto return thread activations */
+       u_int32_t       cs_blocks;      /* symmetric op driver block */
+       u_int32_t       cs_kblocks;     /* symmetric op driver block */
+       /*
+        * When CRYPTO_TIMING is defined at compile time and the
+        * sysctl debug.crypto is set to 1, the crypto system will
+        * accumulate statistics about how long it takes to process
+        * crypto requests at various points during processing.
+        */
+       struct cryptotstat cs_invoke;   /* crypto_dipsatch -> crypto_invoke */
+       struct cryptotstat cs_done;     /* crypto_invoke -> crypto_done */
+       struct cryptotstat cs_cb;       /* crypto_done -> callback */
+       struct cryptotstat cs_finis;    /* callback -> callback return */
+
+       u_int32_t       cs_drops;               /* crypto ops dropped due to congestion */
+};
+
+#ifdef __KERNEL__
+
+/* Standard initialization structure beginning */
+struct cryptoini {
+       int             cri_alg;        /* Algorithm to use */
+       int             cri_klen;       /* Key length, in bits */
+       int             cri_mlen;       /* Number of bytes we want from the
+                                          entire hash. 0 means all. */
+       caddr_t         cri_key;        /* key to use */
+       u_int8_t        cri_iv[EALG_MAX_BLOCK_LEN];     /* IV to use */
+       struct cryptoini *cri_next;
+};
+
+/* Describe boundaries of a single crypto operation */
+struct cryptodesc {
+       int             crd_skip;       /* How many bytes to ignore from start */
+       int             crd_len;        /* How many bytes to process */
+       int             crd_inject;     /* Where to inject results, if applicable */
+       int             crd_flags;
+
+#define CRD_F_ENCRYPT          0x01    /* Set when doing encryption */
+#define CRD_F_IV_PRESENT       0x02    /* When encrypting, IV is already in
+                                          place, so don't copy. */
+#define CRD_F_IV_EXPLICIT      0x04    /* IV explicitly provided */
+#define CRD_F_DSA_SHA_NEEDED   0x08    /* Compute SHA-1 of buffer for DSA */
+#define CRD_F_KEY_EXPLICIT     0x10    /* Key explicitly provided */
+#define CRD_F_COMP             0x0f    /* Set when doing compression */
+
+       struct cryptoini        CRD_INI; /* Initialization/context data */
+#define crd_iv         CRD_INI.cri_iv
+#define crd_key                CRD_INI.cri_key
+#define crd_alg                CRD_INI.cri_alg
+#define crd_klen       CRD_INI.cri_klen
+
+       struct cryptodesc *crd_next;
+};
+
+/* Structure describing complete operation */
+struct cryptop {
+       struct list_head crp_next;
+       wait_queue_head_t crp_waitq;
+
+       u_int64_t       crp_sid;        /* Session ID */
+       int             crp_ilen;       /* Input data total length */
+       int             crp_olen;       /* Result total length */
+
+       int             crp_etype;      /*
+                                        * Error type (zero means no error).
+                                        * All error codes except EAGAIN
+                                        * indicate possible data corruption (as in,
+                                        * the data have been touched). On all
+                                        * errors, the crp_sid may have changed
+                                        * (reset to a new one), so the caller
+                                        * should always check and use the new
+                                        * value on future requests.
+                                        */
+       int             crp_flags;
+
+#define CRYPTO_F_SKBUF         0x0001  /* Input/output are skbuf chains */
+#define CRYPTO_F_IOV           0x0002  /* Input/output are uio */
+#define CRYPTO_F_REL           0x0004  /* Must return data in same place */
+#define CRYPTO_F_BATCH         0x0008  /* Batch op if possible */
+#define CRYPTO_F_CBIMM         0x0010  /* Do callback immediately */
+#define CRYPTO_F_DONE          0x0020  /* Operation completed */
+#define CRYPTO_F_CBIFSYNC      0x0040  /* Do CBIMM if op is synchronous */
+
+       caddr_t         crp_buf;        /* Data to be processed */
+       caddr_t         crp_opaque;     /* Opaque pointer, passed along */
+       struct cryptodesc *crp_desc;    /* Linked list of processing descriptors */
+
+       int (*crp_callback)(struct cryptop *); /* Callback function */
+};
+
+#define CRYPTO_BUF_CONTIG      0x0
+#define CRYPTO_BUF_IOV         0x1
+#define CRYPTO_BUF_SKBUF               0x2
+
+#define CRYPTO_OP_DECRYPT      0x0
+#define CRYPTO_OP_ENCRYPT      0x1
+
+/*
+ * Hints passed to process methods.
+ */
+#define CRYPTO_HINT_MORE       0x1     /* more ops coming shortly */
+
+struct cryptkop {
+       struct list_head krp_next;
+       wait_queue_head_t krp_waitq;
+
+       int             krp_flags;
+#define CRYPTO_KF_DONE         0x0001  /* Operation completed */
+#define CRYPTO_KF_CBIMM                0x0002  /* Do callback immediately */
+
+       u_int           krp_op;         /* ie. CRK_MOD_EXP or other */
+       u_int           krp_status;     /* return status */
+       u_short         krp_iparams;    /* # of input parameters */
+       u_short         krp_oparams;    /* # of output parameters */
+       u_int           krp_crid;       /* desired device, etc. */
+       u_int32_t       krp_hid;
+       struct crparam  krp_param[CRK_MAXPARAM];        /* kvm */
+       int             (*krp_callback)(struct cryptkop *);
+};
+
+#include <ocf-compat.h>
+
+/*
+ * Session ids are 64 bits.  The lower 32 bits contain a "local id" which
+ * is a driver-private session identifier.  The upper 32 bits contain a
+ * "hardware id" used by the core crypto code to identify the driver and
+ * a copy of the driver's capabilities that can be used by client code to
+ * optimize operation.
+ */
+#define CRYPTO_SESID2HID(_sid) (((_sid) >> 32) & 0x00ffffff)
+#define CRYPTO_SESID2CAPS(_sid)        (((_sid) >> 32) & 0xff000000)
+#define CRYPTO_SESID2LID(_sid) (((u_int32_t) (_sid)) & 0xffffffff)
+
+extern int crypto_newsession(u_int64_t *sid, struct cryptoini *cri, int hard);
+extern int crypto_freesession(u_int64_t sid);
+#define CRYPTOCAP_F_HARDWARE   CRYPTO_FLAG_HARDWARE
+#define CRYPTOCAP_F_SOFTWARE   CRYPTO_FLAG_SOFTWARE
+#define CRYPTOCAP_F_SYNC       0x04000000      /* operates synchronously */
+extern int32_t crypto_get_driverid(device_t dev, int flags);
+extern int crypto_find_driver(const char *);
+extern device_t crypto_find_device_byhid(int hid);
+extern int crypto_getcaps(int hid);
+extern int crypto_register(u_int32_t driverid, int alg, u_int16_t maxoplen,
+           u_int32_t flags);
+extern int crypto_kregister(u_int32_t, int, u_int32_t);
+extern int crypto_unregister(u_int32_t driverid, int alg);
+extern int crypto_unregister_all(u_int32_t driverid);
+extern int crypto_dispatch(struct cryptop *crp);
+extern int crypto_kdispatch(struct cryptkop *);
+#define CRYPTO_SYMQ    0x1
+#define CRYPTO_ASYMQ   0x2
+extern int crypto_unblock(u_int32_t, int);
+extern void crypto_done(struct cryptop *crp);
+extern void crypto_kdone(struct cryptkop *);
+extern int crypto_getfeat(int *);
+
+extern void crypto_freereq(struct cryptop *crp);
+extern struct cryptop *crypto_getreq(int num);
+
+extern  int crypto_usercrypto;      /* userland may do crypto requests */
+extern  int crypto_userasymcrypto;  /* userland may do asym crypto reqs */
+extern  int crypto_devallowsoft;    /* only use hardware crypto */
+
+/*
+ * random number support,  crypto_unregister_all will unregister
+ */
+extern int crypto_rregister(u_int32_t driverid,
+               int (*read_random)(void *arg, u_int32_t *buf, int len), void *arg);
+extern int crypto_runregister_all(u_int32_t driverid);
+
+/*
+ * Crypto-related utility routines used mainly by drivers.
+ *
+ * XXX these don't really belong here; but for now they're
+ *     kept apart from the rest of the system.
+ */
+struct uio;
+extern void cuio_copydata(struct uio* uio, int off, int len, caddr_t cp);
+extern void cuio_copyback(struct uio* uio, int off, int len, caddr_t cp);
+extern struct iovec *cuio_getptr(struct uio *uio, int loc, int *off);
+
+extern void crypto_copyback(int flags, caddr_t buf, int off, int size,
+           caddr_t in);
+extern void crypto_copydata(int flags, caddr_t buf, int off, int size,
+           caddr_t out);
+extern int crypto_apply(int flags, caddr_t buf, int off, int len,
+           int (*f)(void *, void *, u_int), void *arg);
+
+#endif /* __KERNEL__ */
+#endif /* _CRYPTO_CRYPTO_H_ */
--- /dev/null
+++ b/crypto/ocf/ocfnull/ocfnull.c
@@ -0,0 +1,203 @@
+/*
+ * An OCF module for determining the cost of crypto versus the cost of
+ * IPSec processing outside of OCF.  This modules gives us the effect of
+ * zero cost encryption,  of course you will need to run it at both ends
+ * since it does no crypto at all.
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough 
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/interrupt.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+static int32_t                  null_id = -1;
+static u_int32_t                null_sesnum = 0;
+
+static int null_process(device_t, struct cryptop *, int);
+static int null_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int null_freesession(device_t, u_int64_t);
+
+#define debug ocfnull_debug
+int ocfnull_debug = 0;
+module_param(ocfnull_debug, int, 0644);
+MODULE_PARM_DESC(ocfnull_debug, "Enable debug");
+
+/*
+ * dummy device structure
+ */
+
+static struct {
+       softc_device_decl       sc_dev;
+} nulldev;
+
+static device_method_t null_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, null_newsession),
+       DEVMETHOD(cryptodev_freesession,null_freesession),
+       DEVMETHOD(cryptodev_process,    null_process),
+};
+
+/*
+ * Generate a new software session.
+ */
+static int
+null_newsession(device_t arg, u_int32_t *sid, struct cryptoini *cri)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       if (sid == NULL || cri == NULL) {
+               dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       if (null_sesnum == 0)
+               null_sesnum++;
+       *sid = null_sesnum++;
+       return 0;
+}
+
+
+/*
+ * Free a session.
+ */
+static int
+null_freesession(device_t arg, u_int64_t tid)
+{
+       u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (sid > null_sesnum) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       /* Silently accept and return */
+       if (sid == 0)
+               return 0;
+       return 0;
+}
+
+
+/*
+ * Process a request.
+ */
+static int
+null_process(device_t arg, struct cryptop *crp, int hint)
+{
+       unsigned int lid;
+
+       dprintk("%s()\n", __FUNCTION__);
+
+       /* Sanity check */
+       if (crp == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       crp->crp_etype = 0;
+
+       if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               crp->crp_etype = EINVAL;
+               goto done;
+       }
+
+       /*
+        * find the session we are using
+        */
+
+       lid = crp->crp_sid & 0xffffffff;
+       if (lid >= null_sesnum || lid == 0) {
+               crp->crp_etype = ENOENT;
+               dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+               goto done;
+       }
+
+done:
+       crypto_done(crp);
+       return 0;
+}
+
+
+/*
+ * our driver startup and shutdown routines
+ */
+
+static int
+null_init(void)
+{
+       dprintk("%s(%p)\n", __FUNCTION__, null_init);
+
+       memset(&nulldev, 0, sizeof(nulldev));
+       softc_device_init(&nulldev, "ocfnull", 0, null_methods);
+
+       null_id = crypto_get_driverid(softc_get_device(&nulldev),
+                               CRYPTOCAP_F_HARDWARE);
+       if (null_id < 0)
+               panic("ocfnull: crypto device cannot initialize!");
+
+#define        REGISTER(alg) \
+       crypto_register(null_id,alg,0,0)
+       REGISTER(CRYPTO_DES_CBC);
+       REGISTER(CRYPTO_3DES_CBC);
+       REGISTER(CRYPTO_RIJNDAEL128_CBC);
+       REGISTER(CRYPTO_MD5);
+       REGISTER(CRYPTO_SHA1);
+       REGISTER(CRYPTO_MD5_HMAC);
+       REGISTER(CRYPTO_SHA1_HMAC);
+#undef REGISTER
+
+       return 0;
+}
+
+static void
+null_exit(void)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       crypto_unregister_all(null_id);
+       null_id = -1;
+}
+
+module_init(null_init);
+module_exit(null_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("ocfnull - claims a lot but does nothing");
--- /dev/null
+++ b/crypto/ocf/cryptosoft.c
@@ -0,0 +1,898 @@
+/*
+ * An OCF module that uses the linux kernel cryptoapi, based on the
+ * original cryptosoft for BSD by Angelos D. Keromytis (angelos@cis.upenn.edu)
+ * but is mostly unrecognisable,
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2004-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this product
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ * ---------------------------------------------------------------------------
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/crypto.h>
+#include <linux/mm.h>
+#include <linux/skbuff.h>
+#include <linux/random.h>
+#include <asm/scatterlist.h>
+
+#include <cryptodev.h>
+#include <uio.h>
+
+struct {
+       softc_device_decl       sc_dev;
+} swcr_softc;
+
+#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
+
+/* Software session entry */
+
+#define SW_TYPE_CIPHER         0
+#define SW_TYPE_HMAC           1
+#define SW_TYPE_AUTH2          2
+#define SW_TYPE_HASH           3
+#define SW_TYPE_COMP           4
+#define SW_TYPE_BLKCIPHER      5
+
+struct swcr_data {
+       int                                     sw_type;
+       int                                     sw_alg;
+       struct crypto_tfm       *sw_tfm;
+       union {
+               struct {
+                       char *sw_key;
+                       int  sw_klen;
+                       int  sw_mlen;
+               } hmac;
+               void *sw_comp_buf;
+       } u;
+       struct swcr_data        *sw_next;
+};
+
+#ifndef CRYPTO_TFM_MODE_CBC
+/*
+ * As of linux-2.6.21 this is no longer defined, and presumably no longer
+ * needed to be passed into the crypto core code.
+ */
+#define        CRYPTO_TFM_MODE_CBC     0
+#define        CRYPTO_TFM_MODE_ECB     0
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+       /*
+        * Linux 2.6.19 introduced a new Crypto API, setup macro's to convert new
+        * API into old API.
+        */
+
+       /* Symmetric/Block Cipher */
+       struct blkcipher_desc
+       {
+               struct crypto_tfm *tfm;
+               void *info;
+       };
+       #define ecb(X)                                                          #X
+       #define cbc(X)                                                          #X
+       #define crypto_has_blkcipher(X, Y, Z)           crypto_alg_available(X, 0)
+       #define crypto_blkcipher_cast(X)                        X
+       #define crypto_blkcipher_tfm(X)                         X
+       #define crypto_alloc_blkcipher(X, Y, Z)         crypto_alloc_tfm(X, mode)
+       #define crypto_blkcipher_ivsize(X)                      crypto_tfm_alg_ivsize(X)
+       #define crypto_blkcipher_blocksize(X)           crypto_tfm_alg_blocksize(X)
+       #define crypto_blkcipher_setkey(X, Y, Z)        crypto_cipher_setkey(X, Y, Z)
+       #define crypto_blkcipher_encrypt_iv(W, X, Y, Z) \
+                               crypto_cipher_encrypt_iv((W)->tfm, X, Y, Z, (u8 *)((W)->info))
+       #define crypto_blkcipher_decrypt_iv(W, X, Y, Z) \
+                               crypto_cipher_decrypt_iv((W)->tfm, X, Y, Z, (u8 *)((W)->info))
+
+       /* Hash/HMAC/Digest */
+       struct hash_desc
+       {
+               struct crypto_tfm *tfm;
+       };
+       #define hmac(X)                                                 #X
+       #define crypto_has_hash(X, Y, Z)                crypto_alg_available(X, 0)
+       #define crypto_hash_cast(X)                             X
+       #define crypto_hash_tfm(X)                              X
+       #define crypto_alloc_hash(X, Y, Z)              crypto_alloc_tfm(X, mode)
+       #define crypto_hash_digestsize(X)               crypto_tfm_alg_digestsize(X)
+       #define crypto_hash_digest(W, X, Y, Z)  \
+                               crypto_digest_digest((W)->tfm, X, sg_num, Z)
+
+       /* Asymmetric Cipher */
+       #define crypto_has_cipher(X, Y, Z)              crypto_alg_available(X, 0)
+
+       /* Compression */
+       #define crypto_has_comp(X, Y, Z)                crypto_alg_available(X, 0)
+       #define crypto_comp_tfm(X)                              X
+       #define crypto_comp_cast(X)                             X
+       #define crypto_alloc_comp(X, Y, Z)              crypto_alloc_tfm(X, mode)
+#else
+       #define ecb(X)  "ecb(" #X ")"
+       #define cbc(X)  "cbc(" #X ")"
+       #define hmac(X) "hmac(" #X ")"
+#endif /* if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */
+
+struct crypto_details
+{
+       char *alg_name;
+       int mode;
+       int sw_type;
+};
+
+/*
+ * This needs to be kept updated with CRYPTO_xxx list (cryptodev.h).
+ * If the Algorithm is not supported, then insert a {NULL, 0, 0} entry.
+ *
+ * IMPORTANT: The index to the array IS CRYPTO_xxx.
+ */
+static struct crypto_details crypto_details[CRYPTO_ALGORITHM_MAX + 1] = {
+       { NULL,              0,                   0 },
+       /* CRYPTO_xxx index starts at 1 */
+       { cbc(des),          CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { cbc(des3_ede),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { cbc(blowfish),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { cbc(cast5),        CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { cbc(skipjack),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { hmac(md5),         0,                   SW_TYPE_HMAC },
+       { hmac(sha1),        0,                   SW_TYPE_HMAC },
+       { hmac(ripemd160),   0,                   SW_TYPE_HMAC },
+       { "md5-kpdk??",      0,                   SW_TYPE_HASH },
+       { "sha1-kpdk??",     0,                   SW_TYPE_HASH },
+       { cbc(aes),          CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { ecb(arc4),         CRYPTO_TFM_MODE_ECB, SW_TYPE_BLKCIPHER },
+       { "md5",             0,                   SW_TYPE_HASH },
+       { "sha1",            0,                   SW_TYPE_HASH },
+       { hmac(digest_null), 0,                   SW_TYPE_HMAC },
+       { cbc(cipher_null),  CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { "deflate",         0,                   SW_TYPE_COMP },
+       { hmac(sha256),      0,                   SW_TYPE_HMAC },
+       { hmac(sha384),      0,                   SW_TYPE_HMAC },
+       { hmac(sha512),      0,                   SW_TYPE_HMAC },
+       { cbc(camellia),     CRYPTO_TFM_MODE_CBC, SW_TYPE_BLKCIPHER },
+       { "sha256",          0,                   SW_TYPE_HASH },
+       { "sha384",          0,                   SW_TYPE_HASH },
+       { "sha512",          0,                   SW_TYPE_HASH },
+       { "ripemd160",       0,                   SW_TYPE_HASH },
+};
+
+int32_t swcr_id = -1;
+module_param(swcr_id, int, 0444);
+MODULE_PARM_DESC(swcr_id, "Read-Only OCF ID for cryptosoft driver");
+
+int swcr_fail_if_compression_grows = 1;
+module_param(swcr_fail_if_compression_grows, int, 0644);
+MODULE_PARM_DESC(swcr_fail_if_compression_grows,
+                "Treat compression that results in more data as a failure");
+
+static struct swcr_data **swcr_sessions = NULL;
+static u_int32_t swcr_sesnum = 0;
+
+static int swcr_process(device_t, struct cryptop *, int);
+static int swcr_newsession(device_t, u_int32_t *, struct cryptoini *);
+static int swcr_freesession(device_t, u_int64_t);
+
+static device_method_t swcr_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, swcr_newsession),
+       DEVMETHOD(cryptodev_freesession,swcr_freesession),
+       DEVMETHOD(cryptodev_process,    swcr_process),
+};
+
+#define debug swcr_debug
+int swcr_debug = 0;
+module_param(swcr_debug, int, 0644);
+MODULE_PARM_DESC(swcr_debug, "Enable debug");
+
+/*
+ * Generate a new software session.
+ */
+static int
+swcr_newsession(device_t dev, u_int32_t *sid, struct cryptoini *cri)
+{
+       struct swcr_data **swd;
+       u_int32_t i;
+       int error;
+       char *algo;
+       int mode, sw_type;
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (sid == NULL || cri == NULL) {
+               dprintk("%s,%d - EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       if (swcr_sessions) {
+               for (i = 1; i < swcr_sesnum; i++)
+                       if (swcr_sessions[i] == NULL)
+                               break;
+       } else
+               i = 1;          /* NB: to silence compiler warning */
+
+       if (swcr_sessions == NULL || i == swcr_sesnum) {
+               if (swcr_sessions == NULL) {
+                       i = 1; /* We leave swcr_sessions[0] empty */
+                       swcr_sesnum = CRYPTO_SW_SESSIONS;
+               } else
+                       swcr_sesnum *= 2;
+
+               swd = kmalloc(swcr_sesnum * sizeof(struct swcr_data *), SLAB_ATOMIC);
+               if (swd == NULL) {
+                       /* Reset session number */
+                       if (swcr_sesnum == CRYPTO_SW_SESSIONS)
+                               swcr_sesnum = 0;
+                       else
+                               swcr_sesnum /= 2;
+                       dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+                       return ENOBUFS;
+               }
+               memset(swd, 0, swcr_sesnum * sizeof(struct swcr_data *));
+
+               /* Copy existing sessions */
+               if (swcr_sessions) {
+                       memcpy(swd, swcr_sessions,
+                           (swcr_sesnum / 2) * sizeof(struct swcr_data *));
+                       kfree(swcr_sessions);
+               }
+
+               swcr_sessions = swd;
+       }
+
+       swd = &swcr_sessions[i];
+       *sid = i;
+
+       while (cri) {
+               *swd = (struct swcr_data *) kmalloc(sizeof(struct swcr_data),
+                               SLAB_ATOMIC);
+               if (*swd == NULL) {
+                       swcr_freesession(NULL, i);
+                       dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+                       return ENOBUFS;
+               }
+               memset(*swd, 0, sizeof(struct swcr_data));
+
+               if (cri->cri_alg > CRYPTO_ALGORITHM_MAX) {
+                       printk("cryptosoft: Unknown algorithm 0x%x\n", cri->cri_alg);
+                       swcr_freesession(NULL, i);
+                       return EINVAL;
+               }
+
+               algo = crypto_details[cri->cri_alg].alg_name;
+               if (!algo || !*algo) {
+                       printk("cryptosoft: Unsupported algorithm 0x%x\n", cri->cri_alg);
+                       swcr_freesession(NULL, i);
+                       return EINVAL;
+               }
+
+               mode = crypto_details[cri->cri_alg].mode;
+               sw_type = crypto_details[cri->cri_alg].sw_type;
+
+               /* Algorithm specific configuration */
+               switch (cri->cri_alg) {
+               case CRYPTO_NULL_CBC:
+                       cri->cri_klen = 0; /* make it work with crypto API */
+                       break;
+               default:
+                       break;
+               }
+
+               if (sw_type == SW_TYPE_BLKCIPHER) {
+                       dprintk("%s crypto_alloc_blkcipher(%s, 0x%x)\n", __FUNCTION__,
+                                       algo, mode);
+
+                       (*swd)->sw_tfm = crypto_blkcipher_tfm(
+                                                               crypto_alloc_blkcipher(algo, 0,
+                                                                       CRYPTO_ALG_ASYNC));
+                       if (!(*swd)->sw_tfm) {
+                               dprintk("cryptosoft: crypto_alloc_blkcipher failed(%s,0x%x)\n",
+                                               algo,mode);
+                               swcr_freesession(NULL, i);
+                               return EINVAL;
+                       }
+
+                       if (debug) {
+                               dprintk("%s key:cri->cri_klen=%d,(cri->cri_klen + 7)/8=%d",
+                                               __FUNCTION__,cri->cri_klen,(cri->cri_klen + 7)/8);
+                               for (i = 0; i < (cri->cri_klen + 7) / 8; i++)
+                               {
+                                       dprintk("%s0x%x", (i % 8) ? " " : "\n    ",cri->cri_key[i]);
+                               }
+                               dprintk("\n");
+                       }
+                       error = crypto_blkcipher_setkey(
+                                               crypto_blkcipher_cast((*swd)->sw_tfm), cri->cri_key,
+                                                       (cri->cri_klen + 7) / 8);
+                       if (error) {
+                               printk("cryptosoft: setkey failed %d (crt_flags=0x%x)\n", error,
+                                               (*swd)->sw_tfm->crt_flags);
+                               swcr_freesession(NULL, i);
+                               return error;
+                       }
+               } else if (sw_type == SW_TYPE_HMAC || sw_type == SW_TYPE_HASH) {
+                       dprintk("%s crypto_alloc_hash(%s, 0x%x)\n", __FUNCTION__,
+                                       algo, mode);
+
+                       (*swd)->sw_tfm = crypto_hash_tfm(
+                                                               crypto_alloc_hash(algo, 0, CRYPTO_ALG_ASYNC));
+
+                       if (!(*swd)->sw_tfm) {
+                               dprintk("cryptosoft: crypto_alloc_hash failed(%s,0x%x)\n",
+                                               algo, mode);
+                               swcr_freesession(NULL, i);
+                               return EINVAL;
+                       }
+
+                       (*swd)->u.hmac.sw_klen = (cri->cri_klen + 7) / 8;
+                       (*swd)->u.hmac.sw_key = (char *)kmalloc((*swd)->u.hmac.sw_klen,
+                               SLAB_ATOMIC);
+                       if ((*swd)->u.hmac.sw_key == NULL) {
+                               swcr_freesession(NULL, i);
+                               dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+                               return ENOBUFS;
+                       }
+                       memcpy((*swd)->u.hmac.sw_key, cri->cri_key, (*swd)->u.hmac.sw_klen);
+                       if (cri->cri_mlen) {
+                               (*swd)->u.hmac.sw_mlen = cri->cri_mlen;
+                       } else {
+                               (*swd)->u.hmac.sw_mlen =
+                                               crypto_hash_digestsize(
+                                                               crypto_hash_cast((*swd)->sw_tfm));
+                       }
+               } else if (sw_type == SW_TYPE_COMP) {
+                       (*swd)->sw_tfm = crypto_comp_tfm(
+                                       crypto_alloc_comp(algo, 0, CRYPTO_ALG_ASYNC));
+                       if (!(*swd)->sw_tfm) {
+                               dprintk("cryptosoft: crypto_alloc_comp failed(%s,0x%x)\n",
+                                               algo, mode);
+                               swcr_freesession(NULL, i);
+                               return EINVAL;
+                       }
+                       (*swd)->u.sw_comp_buf = kmalloc(CRYPTO_MAX_DATA_LEN, SLAB_ATOMIC);
+                       if ((*swd)->u.sw_comp_buf == NULL) {
+                               swcr_freesession(NULL, i);
+                               dprintk("%s,%d: ENOBUFS\n", __FILE__, __LINE__);
+                               return ENOBUFS;
+                       }
+               } else {
+                       printk("cryptosoft: Unhandled sw_type %d\n", sw_type);
+                       swcr_freesession(NULL, i);
+                       return EINVAL;
+               }
+
+               (*swd)->sw_alg = cri->cri_alg;
+               (*swd)->sw_type = sw_type;
+
+               cri = cri->cri_next;
+               swd = &((*swd)->sw_next);
+       }
+       return 0;
+}
+
+/*
+ * Free a session.
+ */
+static int
+swcr_freesession(device_t dev, u_int64_t tid)
+{
+       struct swcr_data *swd;
+       u_int32_t sid = CRYPTO_SESID2LID(tid);
+
+       dprintk("%s()\n", __FUNCTION__);
+       if (sid > swcr_sesnum || swcr_sessions == NULL ||
+                       swcr_sessions[sid] == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return(EINVAL);
+       }
+
+       /* Silently accept and return */
+       if (sid == 0)
+               return(0);
+
+       while ((swd = swcr_sessions[sid]) != NULL) {
+               swcr_sessions[sid] = swd->sw_next;
+               if (swd->sw_tfm)
+                       crypto_free_tfm(swd->sw_tfm);
+               if (swd->sw_type == SW_TYPE_COMP) {
+                       if (swd->u.sw_comp_buf)
+                               kfree(swd->u.sw_comp_buf);
+               } else {
+                       if (swd->u.hmac.sw_key)
+                               kfree(swd->u.hmac.sw_key);
+               }
+               kfree(swd);
+       }
+       return 0;
+}
+
+/*
+ * Process a software request.
+ */
+static int
+swcr_process(device_t dev, struct cryptop *crp, int hint)
+{
+       struct cryptodesc *crd;
+       struct swcr_data *sw;
+       u_int32_t lid;
+#define SCATTERLIST_MAX 16
+       struct scatterlist sg[SCATTERLIST_MAX];
+       int sg_num, sg_len, skip;
+       struct sk_buff *skb = NULL;
+       struct uio *uiop = NULL;
+
+       dprintk("%s()\n", __FUNCTION__);
+       /* Sanity check */
+       if (crp == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               return EINVAL;
+       }
+
+       crp->crp_etype = 0;
+
+       if (crp->crp_desc == NULL || crp->crp_buf == NULL) {
+               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+               crp->crp_etype = EINVAL;
+               goto done;
+       }
+
+       lid = crp->crp_sid & 0xffffffff;
+       if (lid >= swcr_sesnum || lid == 0 || swcr_sessions == NULL ||
+                       swcr_sessions[lid] == NULL) {
+               crp->crp_etype = ENOENT;
+               dprintk("%s,%d: ENOENT\n", __FILE__, __LINE__);
+               goto done;
+       }
+
+       /*
+        * do some error checking outside of the loop for SKB and IOV processing
+        * this leaves us with valid skb or uiop pointers for later
+        */
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               skb = (struct sk_buff *) crp->crp_buf;
+               if (skb_shinfo(skb)->nr_frags >= SCATTERLIST_MAX) {
+                       printk("%s,%d: %d nr_frags > SCATTERLIST_MAX", __FILE__, __LINE__,
+                                       skb_shinfo(skb)->nr_frags);
+                       goto done;
+               }
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               uiop = (struct uio *) crp->crp_buf;
+               if (uiop->uio_iovcnt > SCATTERLIST_MAX) {
+                       printk("%s,%d: %d uio_iovcnt > SCATTERLIST_MAX", __FILE__, __LINE__,
+                                       uiop->uio_iovcnt);
+                       goto done;
+               }
+       }
+
+       /* Go through crypto descriptors, processing as we go */
+       for (crd = crp->crp_desc; crd; crd = crd->crd_next) {
+               /*
+                * Find the crypto context.
+                *
+                * XXX Note that the logic here prevents us from having
+                * XXX the same algorithm multiple times in a session
+                * XXX (or rather, we can but it won't give us the right
+                * XXX results). To do that, we'd need some way of differentiating
+                * XXX between the various instances of an algorithm (so we can
+                * XXX locate the correct crypto context).
+                */
+               for (sw = swcr_sessions[lid]; sw && sw->sw_alg != crd->crd_alg;
+                               sw = sw->sw_next)
+                       ;
+
+               /* No such context ? */
+               if (sw == NULL) {
+                       crp->crp_etype = EINVAL;
+                       dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+                       goto done;
+               }
+
+               skip = crd->crd_skip;
+
+               /*
+                * setup the SG list skip from the start of the buffer
+                */
+               memset(sg, 0, sizeof(sg));
+               if (crp->crp_flags & CRYPTO_F_SKBUF) {
+                       int i, len;
+
+                       sg_num = 0;
+                       sg_len = 0;
+
+                       if (skip < skb_headlen(skb)) {
+                               len = skb_headlen(skb) - skip;
+                               if (len + sg_len > crd->crd_len)
+                                       len = crd->crd_len - sg_len;
+                               sg_set_page(&sg[sg_num],
+                                       virt_to_page(skb->data + skip), len,
+                                       offset_in_page(skb->data + skip));
+                               sg_len += len;
+                               sg_num++;
+                               skip = 0;
+                       } else
+                               skip -= skb_headlen(skb);
+
+                       for (i = 0; sg_len < crd->crd_len &&
+                                               i < skb_shinfo(skb)->nr_frags &&
+                                               sg_num < SCATTERLIST_MAX; i++) {
+                               if (skip < skb_shinfo(skb)->frags[i].size) {
+                                       len = skb_shinfo(skb)->frags[i].size - skip;
+                                       if (len + sg_len > crd->crd_len)
+                                               len = crd->crd_len - sg_len;
+                                       sg_set_page(&sg[sg_num],
+                                               skb_shinfo(skb)->frags[i].page,
+                                               len,
+                                               skb_shinfo(skb)->frags[i].page_offset + skip);
+                                       sg_len += len;
+                                       sg_num++;
+                                       skip = 0;
+                               } else
+                                       skip -= skb_shinfo(skb)->frags[i].size;
+                       }
+               } else if (crp->crp_flags & CRYPTO_F_IOV) {
+                       int len;
+
+                       sg_len = 0;
+                       for (sg_num = 0; sg_len <= crd->crd_len &&
+                                       sg_num < uiop->uio_iovcnt &&
+                                       sg_num < SCATTERLIST_MAX; sg_num++) {
+                               if (skip <= uiop->uio_iov[sg_num].iov_len) {
+                                       len = uiop->uio_iov[sg_num].iov_len - skip;
+                                       if (len + sg_len > crd->crd_len)
+                                               len = crd->crd_len - sg_len;
+                                       sg_set_page(&sg[sg_num],
+                                               virt_to_page(uiop->uio_iov[sg_num].iov_base+skip),
+                                               len,
+                                               offset_in_page(uiop->uio_iov[sg_num].iov_base+skip));
+                                       sg_len += len;
+                                       skip = 0;
+                               } else 
+                                       skip -= uiop->uio_iov[sg_num].iov_len;
+                       }
+               } else {
+                       sg_len = (crp->crp_ilen - skip);
+                       if (sg_len > crd->crd_len)
+                               sg_len = crd->crd_len;
+                       sg_set_page(&sg[0], virt_to_page(crp->crp_buf + skip),
+                               sg_len, offset_in_page(crp->crp_buf + skip));
+                       sg_num = 1;
+               }
+
+
+               switch (sw->sw_type) {
+               case SW_TYPE_BLKCIPHER: {
+                       unsigned char iv[EALG_MAX_BLOCK_LEN];
+                       unsigned char *ivp = iv;
+                       int ivsize = 
+                               crypto_blkcipher_ivsize(crypto_blkcipher_cast(sw->sw_tfm));
+                       struct blkcipher_desc desc;
+
+                       if (sg_len < crypto_blkcipher_blocksize(
+                                       crypto_blkcipher_cast(sw->sw_tfm))) {
+                               crp->crp_etype = EINVAL;
+                               dprintk("%s,%d: EINVAL len %d < %d\n", __FILE__, __LINE__,
+                                               sg_len, crypto_blkcipher_blocksize(
+                                                       crypto_blkcipher_cast(sw->sw_tfm)));
+                               goto done;
+                       }
+
+                       if (ivsize > sizeof(iv)) {
+                               crp->crp_etype = EINVAL;
+                               dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+                               goto done;
+                       }
+
+                       if (crd->crd_flags & CRD_F_KEY_EXPLICIT) {
+                               int i, error;
+
+                               if (debug) {
+                                       dprintk("%s key:", __FUNCTION__);
+                                       for (i = 0; i < (crd->crd_klen + 7) / 8; i++)
+                                               dprintk("%s0x%x", (i % 8) ? " " : "\n    ",
+                                                               crd->crd_key[i]);
+                                       dprintk("\n");
+                               }
+                               error = crypto_blkcipher_setkey(
+                                                       crypto_blkcipher_cast(sw->sw_tfm), crd->crd_key,
+                                                       (crd->crd_klen + 7) / 8);
+                               if (error) {
+                                       dprintk("cryptosoft: setkey failed %d (crt_flags=0x%x)\n",
+                                                       error, sw->sw_tfm->crt_flags);
+                                       crp->crp_etype = -error;
+                               }
+                       }
+
+                       memset(&desc, 0, sizeof(desc));
+                       desc.tfm = crypto_blkcipher_cast(sw->sw_tfm);
+
+                       if (crd->crd_flags & CRD_F_ENCRYPT) { /* encrypt */
+
+                               if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
+                                       ivp = crd->crd_iv;
+                               } else {
+                                       get_random_bytes(ivp, ivsize);
+                               }
+                               /*
+                                * do we have to copy the IV back to the buffer ?
+                                */
+                               if ((crd->crd_flags & CRD_F_IV_PRESENT) == 0) {
+                                       crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                                       crd->crd_inject, ivsize, (caddr_t)ivp);
+                               }
+                               desc.info = ivp;
+                               crypto_blkcipher_encrypt_iv(&desc, sg, sg, sg_len);
+
+                       } else { /*decrypt */
+
+                               if (crd->crd_flags & CRD_F_IV_EXPLICIT) {
+                                       ivp = crd->crd_iv;
+                               } else {
+                                       crypto_copydata(crp->crp_flags, crp->crp_buf,
+                                                       crd->crd_inject, ivsize, (caddr_t)ivp);
+                               }
+                               desc.info = ivp;
+                               crypto_blkcipher_decrypt_iv(&desc, sg, sg, sg_len);
+                       }
+                       } break;
+               case SW_TYPE_HMAC:
+               case SW_TYPE_HASH:
+                       {
+                       char result[HASH_MAX_LEN];
+                       struct hash_desc desc;
+
+                       /* check we have room for the result */
+                       if (crp->crp_ilen - crd->crd_inject < sw->u.hmac.sw_mlen) {
+                               dprintk(
+                       "cryptosoft: EINVAL crp_ilen=%d, len=%d, inject=%d digestsize=%d\n",
+                                               crp->crp_ilen, crd->crd_skip + sg_len, crd->crd_inject,
+                                               sw->u.hmac.sw_mlen);
+                               crp->crp_etype = EINVAL;
+                               goto done;
+                       }
+
+                       memset(&desc, 0, sizeof(desc));
+                       desc.tfm = crypto_hash_cast(sw->sw_tfm);
+
+                       memset(result, 0, sizeof(result));
+
+                       if (sw->sw_type == SW_TYPE_HMAC) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19)
+                               crypto_hmac(sw->sw_tfm, sw->u.hmac.sw_key, &sw->u.hmac.sw_klen,
+                                               sg, sg_num, result);
+#else
+                               crypto_hash_setkey(desc.tfm, sw->u.hmac.sw_key,
+                                               sw->u.hmac.sw_klen);
+                               crypto_hash_digest(&desc, sg, sg_len, result);
+#endif /* #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,19) */
+                               
+                       } else { /* SW_TYPE_HASH */
+                               crypto_hash_digest(&desc, sg, sg_len, result);
+                       }
+
+                       crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                       crd->crd_inject, sw->u.hmac.sw_mlen, result);
+                       }
+                       break;
+
+               case SW_TYPE_COMP: {
+                       void *ibuf = NULL;
+                       void *obuf = sw->u.sw_comp_buf;
+                       int ilen = sg_len, olen = CRYPTO_MAX_DATA_LEN;
+                       int ret = 0;
+
+                       /*
+                        * we need to use an additional copy if there is more than one
+                        * input chunk since the kernel comp routines do not handle
+                        * SG yet.  Otherwise we just use the input buffer as is.
+                        * Rather than allocate another buffer we just split the tmp
+                        * buffer we already have.
+                        * Perhaps we should just use zlib directly ?
+                        */
+                       if (sg_num > 1) {
+                               int blk;
+
+                               ibuf = obuf;
+                               for (blk = 0; blk < sg_num; blk++) {
+                                       memcpy(obuf, sg_virt(&sg[blk]),
+                                                       sg[blk].length);
+                                       obuf += sg[blk].length;
+                               }
+                               olen -= sg_len;
+                       } else
+                               ibuf = sg_virt(&sg[0]);
+
+                       if (crd->crd_flags & CRD_F_ENCRYPT) { /* compress */
+                               ret = crypto_comp_compress(crypto_comp_cast(sw->sw_tfm),
+                                               ibuf, ilen, obuf, &olen);
+                               if (!ret && olen > crd->crd_len) {
+                                       dprintk("cryptosoft: ERANGE compress %d into %d\n",
+                                                       crd->crd_len, olen);
+                                       if (swcr_fail_if_compression_grows)
+                                               ret = ERANGE;
+                               }
+                       } else { /* decompress */
+                               ret = crypto_comp_decompress(crypto_comp_cast(sw->sw_tfm),
+                                               ibuf, ilen, obuf, &olen);
+                               if (!ret && (olen + crd->crd_inject) > crp->crp_olen) {
+                                       dprintk("cryptosoft: ETOOSMALL decompress %d into %d, "
+                                                       "space for %d,at offset %d\n",
+                                                       crd->crd_len, olen, crp->crp_olen, crd->crd_inject);
+                                       ret = ETOOSMALL;
+                               }
+                       }
+                       if (ret)
+                               dprintk("%s,%d: ret = %d\n", __FILE__, __LINE__, ret);
+
+                       /*
+                        * on success copy result back,
+                        * linux crpyto API returns -errno,  we need to fix that
+                        */
+                       crp->crp_etype = ret < 0 ? -ret : ret;
+                       if (ret == 0) {
+                               /* copy back the result and return it's size */
+                               crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                               crd->crd_inject, olen, obuf);
+                               crp->crp_olen = olen;
+                       }
+
+
+                       } break;
+
+               default:
+                       /* Unknown/unsupported algorithm */
+                       dprintk("%s,%d: EINVAL\n", __FILE__, __LINE__);
+                       crp->crp_etype = EINVAL;
+                       goto done;
+               }
+       }
+
+done:
+       crypto_done(crp);
+       return 0;
+}
+
+static int
+cryptosoft_init(void)
+{
+       int i, sw_type, mode;
+       char *algo;
+
+       dprintk("%s(%p)\n", __FUNCTION__, cryptosoft_init);
+
+       softc_device_init(&swcr_softc, "cryptosoft", 0, swcr_methods);
+
+       swcr_id = crypto_get_driverid(softc_get_device(&swcr_softc),
+                       CRYPTOCAP_F_SOFTWARE | CRYPTOCAP_F_SYNC);
+       if (swcr_id < 0) {
+               printk("Software crypto device cannot initialize!");
+               return -ENODEV;
+       }
+
+#define        REGISTER(alg) \
+               crypto_register(swcr_id, alg, 0,0);
+
+       for (i = CRYPTO_ALGORITHM_MIN; i <= CRYPTO_ALGORITHM_MAX; ++i)
+       {
+               
+               algo = crypto_details[i].alg_name;
+               if (!algo || !*algo)
+               {
+                       dprintk("%s:Algorithm %d not supported\n", __FUNCTION__, i);
+                       continue;
+               }
+
+               mode = crypto_details[i].mode;
+               sw_type = crypto_details[i].sw_type;
+
+               switch (sw_type)
+               {
+                       case SW_TYPE_CIPHER:
+                               if (crypto_has_cipher(algo, 0, CRYPTO_ALG_ASYNC))
+                               {
+                                       REGISTER(i);
+                               }
+                               else
+                               {
+                                       dprintk("%s:CIPHER algorithm %d:'%s' not supported\n",
+                                                               __FUNCTION__, i, algo);
+                               }
+                               break;
+                       case SW_TYPE_HMAC:
+                               if (crypto_has_hash(algo, 0, CRYPTO_ALG_ASYNC))
+                               {
+                                       REGISTER(i);
+                               }
+                               else
+                               {
+                                       dprintk("%s:HMAC algorithm %d:'%s' not supported\n",
+                                                               __FUNCTION__, i, algo);
+                               }
+                               break;
+                       case SW_TYPE_HASH:
+                               if (crypto_has_hash(algo, 0, CRYPTO_ALG_ASYNC))
+                               {
+                                       REGISTER(i);
+                               }
+                               else
+                               {
+                                       dprintk("%s:HASH algorithm %d:'%s' not supported\n",
+                                                               __FUNCTION__, i, algo);
+                               }
+                               break;
+                       case SW_TYPE_COMP:
+                               if (crypto_has_comp(algo, 0, CRYPTO_ALG_ASYNC))
+                               {
+                                       REGISTER(i);
+                               }
+                               else
+                               {
+                                       dprintk("%s:COMP algorithm %d:'%s' not supported\n",
+                                                               __FUNCTION__, i, algo);
+                               }
+                               break;
+                       case SW_TYPE_BLKCIPHER:
+                               if (crypto_has_blkcipher(algo, 0, CRYPTO_ALG_ASYNC))
+                               {
+                                       REGISTER(i);
+                               }
+                               else
+                               {
+                                       dprintk("%s:BLKCIPHER algorithm %d:'%s' not supported\n",
+                                                               __FUNCTION__, i, algo);
+                               }
+                               break;
+                       default:
+                               dprintk(
+                               "%s:Algorithm Type %d not supported (algorithm %d:'%s')\n",
+                                       __FUNCTION__, sw_type, i, algo);
+                               break;
+               }
+       }
+
+       return(0);
+}
+
+static void
+cryptosoft_exit(void)
+{
+       dprintk("%s()\n", __FUNCTION__);
+       crypto_unregister_all(swcr_id);
+       swcr_id = -1;
+}
+
+module_init(cryptosoft_init);
+module_exit(cryptosoft_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("David McCullough <david_mccullough@securecomputing.com>");
+MODULE_DESCRIPTION("Cryptosoft (OCF module for kernel crypto)");
--- /dev/null
+++ b/crypto/ocf/rndtest.c
@@ -0,0 +1,300 @@
+/*     $OpenBSD$       */
+
+/*
+ * OCF/Linux port done by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2006-2007 David McCullough
+ * Copyright (C) 2004-2005 Intel Corporation.
+ * The license and original author are listed below.
+ *
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/wait.h>
+#include <linux/time.h>
+#include <linux/version.h>
+#include <linux/unistd.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/time.h>
+#include <cryptodev.h>
+#include "rndtest.h"
+
+static struct rndtest_stats rndstats;
+
+static void rndtest_test(struct rndtest_state *);
+
+/* The tests themselves */
+static int rndtest_monobit(struct rndtest_state *);
+static int rndtest_runs(struct rndtest_state *);
+static int rndtest_longruns(struct rndtest_state *);
+static int rndtest_chi_4(struct rndtest_state *);
+
+static int rndtest_runs_check(struct rndtest_state *, int, int *);
+static void rndtest_runs_record(struct rndtest_state *, int, int *);
+
+static const struct rndtest_testfunc {
+       int (*test)(struct rndtest_state *);
+} rndtest_funcs[] = {
+       { rndtest_monobit },
+       { rndtest_runs },
+       { rndtest_chi_4 },
+       { rndtest_longruns },
+};
+
+#define        RNDTEST_NTESTS  (sizeof(rndtest_funcs)/sizeof(rndtest_funcs[0]))
+
+static void
+rndtest_test(struct rndtest_state *rsp)
+{
+       int i, rv = 0;
+
+       rndstats.rst_tests++;
+       for (i = 0; i < RNDTEST_NTESTS; i++)
+               rv |= (*rndtest_funcs[i].test)(rsp);
+       rsp->rs_discard = (rv != 0);
+}
+
+
+extern int crypto_debug;
+#define rndtest_verbose 2
+#define rndtest_report(rsp, failure, fmt, a...) \
+       { if (failure || crypto_debug) { printk("rng_test: " fmt "\n", a); } else; }
+
+#define        RNDTEST_MONOBIT_MINONES 9725
+#define        RNDTEST_MONOBIT_MAXONES 10275
+
+static int
+rndtest_monobit(struct rndtest_state *rsp)
+{
+       int i, ones = 0, j;
+       u_int8_t r;
+
+       for (i = 0; i < RNDTEST_NBYTES; i++) {
+               r = rsp->rs_buf[i];
+               for (j = 0; j < 8; j++, r <<= 1)
+                       if (r & 0x80)
+                               ones++;
+       }
+       if (ones > RNDTEST_MONOBIT_MINONES &&
+           ones < RNDTEST_MONOBIT_MAXONES) {
+               if (rndtest_verbose > 1)
+                       rndtest_report(rsp, 0, "monobit pass (%d < %d < %d)",
+                           RNDTEST_MONOBIT_MINONES, ones,
+                           RNDTEST_MONOBIT_MAXONES);
+               return (0);
+       } else {
+               if (rndtest_verbose)
+                       rndtest_report(rsp, 1,
+                           "monobit failed (%d ones)", ones);
+               rndstats.rst_monobit++;
+               return (-1);
+       }
+}
+
+#define        RNDTEST_RUNS_NINTERVAL  6
+
+static const struct rndtest_runs_tabs {
+       u_int16_t min, max;
+} rndtest_runs_tab[] = {
+       { 2343, 2657 },
+       { 1135, 1365 },
+       { 542, 708 },
+       { 251, 373 },
+       { 111, 201 },
+       { 111, 201 },
+};
+
+static int
+rndtest_runs(struct rndtest_state *rsp)
+{
+       int i, j, ones, zeros, rv = 0;
+       int onei[RNDTEST_RUNS_NINTERVAL], zeroi[RNDTEST_RUNS_NINTERVAL];
+       u_int8_t c;
+
+       bzero(onei, sizeof(onei));
+       bzero(zeroi, sizeof(zeroi));
+       ones = zeros = 0;
+       for (i = 0; i < RNDTEST_NBYTES; i++) {
+               c = rsp->rs_buf[i];
+               for (j = 0; j < 8; j++, c <<= 1) {
+                       if (c & 0x80) {
+                               ones++;
+                               rndtest_runs_record(rsp, zeros, zeroi);
+                               zeros = 0;
+                       } else {
+                               zeros++;
+                               rndtest_runs_record(rsp, ones, onei);
+                               ones = 0;
+                       }
+               }
+       }
+       rndtest_runs_record(rsp, ones, onei);
+       rndtest_runs_record(rsp, zeros, zeroi);
+
+       rv |= rndtest_runs_check(rsp, 0, zeroi);
+       rv |= rndtest_runs_check(rsp, 1, onei);
+
+       if (rv)
+               rndstats.rst_runs++;
+
+       return (rv);
+}
+
+static void
+rndtest_runs_record(struct rndtest_state *rsp, int len, int *intrv)
+{
+       if (len == 0)
+               return;
+       if (len > RNDTEST_RUNS_NINTERVAL)
+               len = RNDTEST_RUNS_NINTERVAL;
+       len -= 1;
+       intrv[len]++;
+}
+
+static int
+rndtest_runs_check(struct rndtest_state *rsp, int val, int *src)
+{
+       int i, rv = 0;
+
+       for (i = 0; i < RNDTEST_RUNS_NINTERVAL; i++) {
+               if (src[i] < rndtest_runs_tab[i].min ||
+                   src[i] > rndtest_runs_tab[i].max) {
+                       rndtest_report(rsp, 1,
+                           "%s interval %d failed (%d, %d-%d)",
+                           val ? "ones" : "zeros",
+                           i + 1, src[i], rndtest_runs_tab[i].min,
+                           rndtest_runs_tab[i].max);
+                       rv = -1;
+               } else {
+                       rndtest_report(rsp, 0,
+                           "runs pass %s interval %d (%d < %d < %d)",
+                           val ? "ones" : "zeros",
+                           i + 1, rndtest_runs_tab[i].min, src[i],
+                           rndtest_runs_tab[i].max);
+               }
+       }
+       return (rv);
+}
+
+static int
+rndtest_longruns(struct rndtest_state *rsp)
+{
+       int i, j, ones = 0, zeros = 0, maxones = 0, maxzeros = 0;
+       u_int8_t c;
+
+       for (i = 0; i < RNDTEST_NBYTES; i++) {
+               c = rsp->rs_buf[i];
+               for (j = 0; j < 8; j++, c <<= 1) {
+                       if (c & 0x80) {
+                               zeros = 0;
+                               ones++;
+                               if (ones > maxones)
+                                       maxones = ones;
+                       } else {
+                               ones = 0;
+                               zeros++;
+                               if (zeros > maxzeros)
+                                       maxzeros = zeros;
+                       }
+               }
+       }
+
+       if (maxones < 26 && maxzeros < 26) {
+               rndtest_report(rsp, 0, "longruns pass (%d ones, %d zeros)",
+                       maxones, maxzeros);
+               return (0);
+       } else {
+               rndtest_report(rsp, 1, "longruns fail (%d ones, %d zeros)",
+                       maxones, maxzeros);
+               rndstats.rst_longruns++;
+               return (-1);
+       }
+}
+
+/*
+ * chi^2 test over 4 bits: (this is called the poker test in FIPS 140-2,
+ * but it is really the chi^2 test over 4 bits (the poker test as described
+ * by Knuth vol 2 is something different, and I take him as authoritative
+ * on nomenclature over NIST).
+ */
+#define        RNDTEST_CHI4_K  16
+#define        RNDTEST_CHI4_K_MASK     (RNDTEST_CHI4_K - 1)
+
+/*
+ * The unnormalized values are used so that we don't have to worry about
+ * fractional precision.  The "real" value is found by:
+ *     (V - 1562500) * (16 / 5000) = Vn   (where V is the unnormalized value)
+ */
+#define        RNDTEST_CHI4_VMIN       1563181         /* 2.1792 */
+#define        RNDTEST_CHI4_VMAX       1576929         /* 46.1728 */
+
+static int
+rndtest_chi_4(struct rndtest_state *rsp)
+{
+       unsigned int freq[RNDTEST_CHI4_K], i, sum;
+
+       for (i = 0; i < RNDTEST_CHI4_K; i++)
+               freq[i] = 0;
+
+       /* Get number of occurances of each 4 bit pattern */
+       for (i = 0; i < RNDTEST_NBYTES; i++) {
+               freq[(rsp->rs_buf[i] >> 4) & RNDTEST_CHI4_K_MASK]++;
+               freq[(rsp->rs_buf[i] >> 0) & RNDTEST_CHI4_K_MASK]++;
+       }
+
+       for (i = 0, sum = 0; i < RNDTEST_CHI4_K; i++)
+               sum += freq[i] * freq[i];
+
+       if (sum >= 1563181 && sum <= 1576929) {
+               rndtest_report(rsp, 0, "chi^2(4): pass (sum %u)", sum);
+               return (0);
+       } else {
+               rndtest_report(rsp, 1, "chi^2(4): failed (sum %u)", sum);
+               rndstats.rst_chi++;
+               return (-1);
+       }
+}
+
+int
+rndtest_buf(unsigned char *buf)
+{
+       struct rndtest_state rsp;
+
+       memset(&rsp, 0, sizeof(rsp));
+       rsp.rs_buf = buf;
+       rndtest_test(&rsp);
+       return(rsp.rs_discard);
+}
+
--- /dev/null
+++ b/crypto/ocf/rndtest.h
@@ -0,0 +1,54 @@
+/*     $FreeBSD: src/sys/dev/rndtest/rndtest.h,v 1.1 2003/03/11 22:54:44 sam Exp $     */
+/*     $OpenBSD$       */
+
+/*
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by Jason L. Wright
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+/* Some of the tests depend on these values */
+#define        RNDTEST_NBYTES  2500
+#define        RNDTEST_NBITS   (8 * RNDTEST_NBYTES)
+
+struct rndtest_state {
+       int             rs_discard;     /* discard/accept random data */
+       u_int8_t        *rs_buf;
+};
+
+struct rndtest_stats {
+       u_int32_t       rst_discard;    /* number of bytes discarded */
+       u_int32_t       rst_tests;      /* number of test runs */
+       u_int32_t       rst_monobit;    /* monobit test failures */
+       u_int32_t       rst_runs;       /* 0/1 runs failures */
+       u_int32_t       rst_longruns;   /* longruns failures */
+       u_int32_t       rst_chi;        /* chi^2 failures */
+};
+
+extern int rndtest_buf(unsigned char *buf);
--- /dev/null
+++ b/crypto/ocf/ocf-compat.h
@@ -0,0 +1,270 @@
+#ifndef _BSD_COMPAT_H_
+#define _BSD_COMPAT_H_ 1
+/****************************************************************************/
+/*
+ * Provide compat routines for older linux kernels and BSD kernels
+ *
+ * Written by David McCullough <david_mccullough@securecomputing.com>
+ * Copyright (C) 2007 David McCullough <david_mccullough@securecomputing.com>
+ *
+ * LICENSE TERMS
+ *
+ * The free distribution and use of this software in both source and binary
+ * form is allowed (with or without changes) provided that:
+ *
+ *   1. distributions of this source code include the above copyright
+ *      notice, this list of conditions and the following disclaimer;
+ *
+ *   2. distributions in binary form include the above copyright
+ *      notice, this list of conditions and the following disclaimer
+ *      in the documentation and/or other associated materials;
+ *
+ *   3. the copyright holder's name is not used to endorse products
+ *      built using this software without specific written permission.
+ *
+ * ALTERNATIVELY, provided that this notice is retained in full, this file
+ * may be distributed under the terms of the GNU General Public License (GPL),
+ * in which case the provisions of the GPL apply INSTEAD OF those given above.
+ *
+ * DISCLAIMER
+ *
+ * This software is provided 'as is' with no explicit or implied warranties
+ * in respect of its properties, including, but not limited to, correctness
+ * and/or fitness for purpose.
+ */
+/****************************************************************************/
+#ifdef __KERNEL__
+/*
+ * fake some BSD driver interface stuff specifically for OCF use
+ */
+
+typedef struct ocf_device *device_t;
+
+typedef struct {
+       int (*cryptodev_newsession)(device_t dev, u_int32_t *sidp, struct cryptoini *cri);
+       int (*cryptodev_freesession)(device_t dev, u_int64_t tid);
+       int (*cryptodev_process)(device_t dev, struct cryptop *crp, int hint);
+       int (*cryptodev_kprocess)(device_t dev, struct cryptkop *krp, int hint);
+} device_method_t;
+#define DEVMETHOD(id, func)    id: func
+
+struct ocf_device {
+       char name[32];          /* the driver name */
+       char nameunit[32];      /* the driver name + HW instance */
+       int  unit;
+       device_method_t methods;
+       void *softc;
+};
+
+#define CRYPTODEV_NEWSESSION(dev, sid, cri) \
+       ((*(dev)->methods.cryptodev_newsession)(dev,sid,cri))
+#define CRYPTODEV_FREESESSION(dev, sid) \
+       ((*(dev)->methods.cryptodev_freesession)(dev, sid))
+#define CRYPTODEV_PROCESS(dev, crp, hint) \
+       ((*(dev)->methods.cryptodev_process)(dev, crp, hint))
+#define CRYPTODEV_KPROCESS(dev, krp, hint) \
+       ((*(dev)->methods.cryptodev_kprocess)(dev, krp, hint))
+
+#define device_get_name(dev)   ((dev)->name)
+#define device_get_nameunit(dev)       ((dev)->nameunit)
+#define device_get_unit(dev)   ((dev)->unit)
+#define device_get_softc(dev)  ((dev)->softc)
+
+#define        softc_device_decl \
+               struct ocf_device _device; \
+               device_t
+
+#define        softc_device_init(_sc, _name, _unit, _methods) \
+       if (1) {\
+       strncpy((_sc)->_device.name, _name, sizeof((_sc)->_device.name) - 1); \
+       snprintf((_sc)->_device.nameunit, sizeof((_sc)->_device.name), "%s%d", _name, _unit); \
+       (_sc)->_device.unit = _unit; \
+       (_sc)->_device.methods = _methods; \
+       (_sc)->_device.softc = (void *) _sc; \
+       *(device_t *)((softc_get_device(_sc))+1) = &(_sc)->_device; \
+       } else
+
+#define        softc_get_device(_sc)   (&(_sc)->_device)
+
+/*
+ * iomem support for 2.4 and 2.6 kernels
+ */
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define ocf_iomem_t    unsigned long
+
+/*
+ * implement simple workqueue like support for older kernels
+ */
+
+#include <linux/tqueue.h>
+
+#define work_struct tq_struct
+
+#define INIT_WORK(wp, fp, ap) \
+       do { \
+               (wp)->sync = 0; \
+               (wp)->routine = (fp); \
+               (wp)->data = (ap); \
+       } while (0)
+
+#define schedule_work(wp) \
+       do { \
+               queue_task((wp), &tq_immediate); \
+               mark_bh(IMMEDIATE_BH); \
+       } while (0)
+
+#define flush_scheduled_work() run_task_queue(&tq_immediate)
+
+#else
+#define ocf_iomem_t    void __iomem *
+
+#include <linux/workqueue.h>
+
+#endif
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26)
+#include <linux/fdtable.h>
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,11)
+#define files_fdtable(files)   (files)
+#endif
+
+#ifdef MODULE_PARM
+#undef module_param    /* just in case */
+#define        module_param(a,b,c)             MODULE_PARM(a,"i")
+#endif
+
+#define bzero(s,l)             memset(s,0,l)
+#define bcopy(s,d,l)   memcpy(d,s,l)
+#define bcmp(x, y, l)  memcmp(x,y,l)
+
+#define MIN(x,y)       ((x) < (y) ? (x) : (y))
+
+#define device_printf(dev, a...) ({ \
+                               printk("%s: ", device_get_nameunit(dev)); printk(a); \
+                       })
+
+#undef printf
+#define printf(fmt...) printk(fmt)
+
+#define KASSERT(c,p)   if (!(c)) { printk p ; } else
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define ocf_daemonize(str) \
+       daemonize(); \
+       spin_lock_irq(&current->sigmask_lock); \
+       sigemptyset(&current->blocked); \
+       recalc_sigpending(current); \
+       spin_unlock_irq(&current->sigmask_lock); \
+       sprintf(current->comm, str);
+#else
+#define ocf_daemonize(str) daemonize(str);
+#endif
+
+#define        TAILQ_INSERT_TAIL(q,d,m) list_add_tail(&(d)->m, (q))
+#define        TAILQ_EMPTY(q)  list_empty(q)
+#define        TAILQ_FOREACH(v, q, m) list_for_each_entry(v, q, m)
+
+#define read_random(p,l) get_random_bytes(p,l)
+
+#define DELAY(x)       ((x) > 2000 ? mdelay((x)/1000) : udelay(x))
+#define strtoul simple_strtoul
+
+#define pci_get_vendor(dev)    ((dev)->vendor)
+#define pci_get_device(dev)    ((dev)->device)
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
+#define pci_set_consistent_dma_mask(dev, mask) (0)
+#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+#define pci_dma_sync_single_for_cpu pci_dma_sync_single
+#endif
+
+#ifndef DMA_32BIT_MASK
+#define DMA_32BIT_MASK  0x00000000ffffffffULL
+#endif
+
+#define htole32(x)     cpu_to_le32(x)
+#define htobe32(x)     cpu_to_be32(x)
+#define htole16(x)     cpu_to_le16(x)
+#define htobe16(x)     cpu_to_be16(x)
+
+/* older kernels don't have these */
+
+#ifndef IRQ_NONE
+#define IRQ_NONE
+#define IRQ_HANDLED
+#define irqreturn_t void
+#endif
+#ifndef IRQF_SHARED
+#define IRQF_SHARED    SA_SHIRQ
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
+# define strlcpy(dest,src,len) \
+               ({strncpy(dest,src,(len)-1); ((char *)dest)[(len)-1] = '\0'; })
+#endif
+
+#ifndef MAX_ERRNO
+#define MAX_ERRNO      4095
+#endif
+#ifndef IS_ERR_VALUE
+#define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
+#endif
+
+/*
+ * common debug for all
+ */
+#if 1
+#define dprintk(a...)  do { if (debug) printk(a); } while(0)
+#else
+#define dprintk(a...)
+#endif
+
+#ifndef SLAB_ATOMIC
+/* Changed in 2.6.20, must use GFP_ATOMIC now */
+#define        SLAB_ATOMIC     GFP_ATOMIC
+#endif
+
+/*
+ * need some additional support for older kernels */
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,2)
+#define pci_register_driver_compat(driver, rc) \
+       do { \
+               if ((rc) > 0) { \
+                       (rc) = 0; \
+               } else if (rc == 0) { \
+                       (rc) = -ENODEV; \
+               } else { \
+                       pci_unregister_driver(driver); \
+               } \
+       } while (0)
+#elif LINUX_VERSION_CODE < KERNEL_VERSION(2,6,10)
+#define pci_register_driver_compat(driver,rc) ((rc) = (rc) < 0 ? (rc) : 0)
+#else
+#define pci_register_driver_compat(driver,rc)
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
+
+#include <asm/scatterlist.h>
+
+static inline void sg_set_page(struct scatterlist *sg,  struct page *page,
+                              unsigned int len, unsigned int offset)
+{
+       sg->page = page;
+       sg->offset = offset;
+       sg->length = len;
+}
+
+static inline void *sg_virt(struct scatterlist *sg)
+{
+       return page_address(sg->page) + sg->offset;
+}
+
+#endif
+
+#endif /* __KERNEL__ */
+
+/****************************************************************************/
+#endif /* _BSD_COMPAT_H_ */
--- /dev/null
+++ b/crypto/ocf/ep80579/icp_asym.c
@@ -0,0 +1,1375 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+#include "icp_ocf.h"
+
+/*The following define values (containing the word 'INDEX') are used to find
+the index of each input buffer of the crypto_kop struct (see OCF cryptodev.h).
+These values were found through analysis of the OCF OpenSSL patch. If the
+calling program uses different input buffer positions, these defines will have
+to be changed.*/
+
+/*DIFFIE HELLMAN buffer index values*/
+#define ICP_DH_KRP_PARAM_PRIME_INDEX                           (0)
+#define ICP_DH_KRP_PARAM_BASE_INDEX                            (1)
+#define ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX                   (2)
+#define ICP_DH_KRP_PARAM_RESULT_INDEX                          (3)
+
+/*MOD EXP buffer index values*/
+#define ICP_MOD_EXP_KRP_PARAM_BASE_INDEX                       (0)
+#define ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX                   (1)
+#define ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX                    (2)
+#define ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX                     (3)
+
+#define SINGLE_BYTE_VALUE                                      (4)
+
+/*MOD EXP CRT buffer index values*/
+#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX                        (0)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX                        (1)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX                      (2)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX            (3)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX            (4)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX             (5)
+#define ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX                 (6)
+
+/*DSA sign buffer index values*/
+#define ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX                      (0)
+#define ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX                   (1)
+#define ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX                   (2)
+#define ICP_DSA_SIGN_KRP_PARAM_G_INDEX                         (3)
+#define ICP_DSA_SIGN_KRP_PARAM_X_INDEX                         (4)
+#define ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX                  (5)
+#define ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX                  (6)
+
+/*DSA verify buffer index values*/
+#define ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX                    (0)
+#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX                 (1)
+#define ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX                 (2)
+#define ICP_DSA_VERIFY_KRP_PARAM_G_INDEX                       (3)
+#define ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX                  (4)
+#define ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX                   (5)
+#define ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX                   (6)
+
+/*DSA sign prime Q vs random number K size check values*/
+#define DONT_RUN_LESS_THAN_CHECK                               (0)
+#define FAIL_A_IS_GREATER_THAN_B                               (1)
+#define FAIL_A_IS_EQUAL_TO_B                                   (1)
+#define SUCCESS_A_IS_LESS_THAN_B                               (0)
+#define DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS             (500)
+
+/* We need to set a cryptokp success value just in case it is set or allocated
+   and not set to zero outside of this module */
+#define CRYPTO_OP_SUCCESS                                      (0)
+
+static int icp_ocfDrvDHComputeKey(struct cryptkop *krp);
+
+static int icp_ocfDrvModExp(struct cryptkop *krp);
+
+static int icp_ocfDrvModExpCRT(struct cryptkop *krp);
+
+static int
+icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck);
+
+static int icp_ocfDrvDsaSign(struct cryptkop *krp);
+
+static int icp_ocfDrvDsaVerify(struct cryptkop *krp);
+
+static void
+icp_ocfDrvDhP1CallBack(void *callbackTag,
+                      CpaStatus status,
+                      void *pOpData, CpaFlatBuffer * pLocalOctetStringPV);
+
+static void
+icp_ocfDrvModExpCallBack(void *callbackTag,
+                        CpaStatus status,
+                        void *pOpData, CpaFlatBuffer * pResult);
+
+static void
+icp_ocfDrvModExpCRTCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData, CpaFlatBuffer * pOutputData);
+
+static void
+icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData, CpaBoolean verifyStatus);
+
+static void
+icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData,
+                           CpaBoolean protocolStatus,
+                           CpaFlatBuffer * pR, CpaFlatBuffer * pS);
+
+/* Name        : icp_ocfDrvPkeProcess
+ *
+ * Description : This function will choose which PKE process to follow
+ * based on the input arguments
+ */
+int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+
+       if (NULL == krp) {
+               DPRINTK("%s(): Invalid input parameters, cryptkop = %p\n",
+                       __FUNCTION__, krp);
+               return EINVAL;
+       }
+
+       if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+               krp->krp_status = ECANCELED;
+               return ECANCELED;
+       }
+
+       switch (krp->krp_op) {
+       case CRK_DH_COMPUTE_KEY:
+               DPRINTK("%s() doing DH_COMPUTE_KEY\n", __FUNCTION__);
+               lacStatus = icp_ocfDrvDHComputeKey(krp);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): icp_ocfDrvDHComputeKey failed "
+                               "(%d).\n", __FUNCTION__, lacStatus);
+                       krp->krp_status = ECANCELED;
+                       return ECANCELED;
+               }
+
+               break;
+
+       case CRK_MOD_EXP:
+               DPRINTK("%s() doing MOD_EXP \n", __FUNCTION__);
+               lacStatus = icp_ocfDrvModExp(krp);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): icp_ocfDrvModExp failed (%d).\n",
+                               __FUNCTION__, lacStatus);
+                       krp->krp_status = ECANCELED;
+                       return ECANCELED;
+               }
+
+               break;
+
+       case CRK_MOD_EXP_CRT:
+               DPRINTK("%s() doing MOD_EXP_CRT \n", __FUNCTION__);
+               lacStatus = icp_ocfDrvModExpCRT(krp);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): icp_ocfDrvModExpCRT "
+                               "failed (%d).\n", __FUNCTION__, lacStatus);
+                       krp->krp_status = ECANCELED;
+                       return ECANCELED;
+               }
+
+               break;
+
+       case CRK_DSA_SIGN:
+               DPRINTK("%s() doing DSA_SIGN \n", __FUNCTION__);
+               lacStatus = icp_ocfDrvDsaSign(krp);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): icp_ocfDrvDsaSign "
+                               "failed (%d).\n", __FUNCTION__, lacStatus);
+                       krp->krp_status = ECANCELED;
+                       return ECANCELED;
+               }
+
+               break;
+
+       case CRK_DSA_VERIFY:
+               DPRINTK("%s() doing DSA_VERIFY \n", __FUNCTION__);
+               lacStatus = icp_ocfDrvDsaVerify(krp);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): icp_ocfDrvDsaVerify "
+                               "failed (%d).\n", __FUNCTION__, lacStatus);
+                       krp->krp_status = ECANCELED;
+                       return ECANCELED;
+               }
+
+               break;
+
+       default:
+               EPRINTK("%s(): Asymettric function not "
+                       "supported (%d).\n", __FUNCTION__, krp->krp_op);
+               krp->krp_status = EOPNOTSUPP;
+               return EOPNOTSUPP;
+       }
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvSwapBytes
+ *
+ * Description : This function is used to swap the byte order of a buffer.
+ * It has been seen that in general we are passed little endian byte order
+ * buffers, but LAC only accepts big endian byte order buffers.
+ */
+static void inline
+icp_ocfDrvSwapBytes(u_int8_t * num, u_int32_t buff_len_bytes)
+{
+
+       int i;
+       u_int8_t *end_ptr;
+       u_int8_t hold_val;
+
+       end_ptr = num + (buff_len_bytes - 1);
+       buff_len_bytes = buff_len_bytes >> 1;
+       for (i = 0; i < buff_len_bytes; i++) {
+               hold_val = *num;
+               *num = *end_ptr;
+               num++;
+               *end_ptr = hold_val;
+               end_ptr--;
+       }
+}
+
+/* Name        : icp_ocfDrvDHComputeKey
+ *
+ * Description : This function will map Diffie Hellman calls from OCF
+ * to the LAC API. OCF uses this function for Diffie Hellman Phase1 and
+ * Phase2. LAC has a separate Diffie Hellman Phase2 call, however both phases
+ * break down to a modular exponentiation.
+ */
+static int icp_ocfDrvDHComputeKey(struct cryptkop *krp)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       void *callbackTag = NULL;
+       CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
+       CpaFlatBuffer *pLocalOctetStringPV = NULL;
+       uint32_t dh_prime_len_bytes = 0, dh_prime_len_bits = 0;
+
+       /* Input checks - check prime is a multiple of 8 bits to allow for
+          allocation later */
+       dh_prime_len_bits =
+           (krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_nbits);
+
+       /* LAC can reject prime lengths based on prime key sizes, we just
+          need to make sure we can allocate space for the base and
+          exponent buffers correctly */
+       if ((dh_prime_len_bits % NUM_BITS_IN_BYTE) != 0) {
+               APRINTK("%s(): Warning Prime number buffer size is not a "
+                       "multiple of 8 bits\n", __FUNCTION__);
+       }
+
+       /* Result storage space should be the same size as the prime as this
+          value can take up the same amount of storage space */
+       if (dh_prime_len_bits !=
+           krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits) {
+               DPRINTK("%s(): Return Buffer must be the same size "
+                       "as the Prime buffer\n", __FUNCTION__);
+               krp->krp_status = EINVAL;
+               return EINVAL;
+       }
+       /* Switch to size in bytes */
+       BITS_TO_BYTES(dh_prime_len_bytes, dh_prime_len_bits);
+
+       callbackTag = krp;
+
+       pPhase1OpData = kmem_cache_zalloc(drvDH_zone, GFP_KERNEL);
+       if (NULL == pPhase1OpData) {
+               APRINTK("%s():Failed to get memory for key gen data\n",
+                       __FUNCTION__);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       pLocalOctetStringPV = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+       if (NULL == pLocalOctetStringPV) {
+               APRINTK("%s():Failed to get memory for pLocalOctetStringPV\n",
+                       __FUNCTION__);
+               kmem_cache_free(drvDH_zone, pPhase1OpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       /* Link parameters */
+       pPhase1OpData->primeP.pData =
+           krp->krp_param[ICP_DH_KRP_PARAM_PRIME_INDEX].crp_p;
+
+       pPhase1OpData->primeP.dataLenInBytes = dh_prime_len_bytes;
+
+       icp_ocfDrvSwapBytes(pPhase1OpData->primeP.pData, dh_prime_len_bytes);
+
+       pPhase1OpData->baseG.pData =
+           krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_p;
+
+       BITS_TO_BYTES(pPhase1OpData->baseG.dataLenInBytes,
+                     krp->krp_param[ICP_DH_KRP_PARAM_BASE_INDEX].crp_nbits);
+
+       icp_ocfDrvSwapBytes(pPhase1OpData->baseG.pData,
+                           pPhase1OpData->baseG.dataLenInBytes);
+
+       pPhase1OpData->privateValueX.pData =
+           krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].crp_p;
+
+       BITS_TO_BYTES(pPhase1OpData->privateValueX.dataLenInBytes,
+                     krp->krp_param[ICP_DH_KRP_PARAM_PRIVATE_VALUE_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(pPhase1OpData->privateValueX.pData,
+                           pPhase1OpData->privateValueX.dataLenInBytes);
+
+       /* Output parameters */
+       pLocalOctetStringPV->pData =
+           krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_p;
+
+       BITS_TO_BYTES(pLocalOctetStringPV->dataLenInBytes,
+                     krp->krp_param[ICP_DH_KRP_PARAM_RESULT_INDEX].crp_nbits);
+
+       lacStatus = cpaCyDhKeyGenPhase1(CPA_INSTANCE_HANDLE_SINGLE,
+                                       icp_ocfDrvDhP1CallBack,
+                                       callbackTag, pPhase1OpData,
+                                       pLocalOctetStringPV);
+
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): DH Phase 1 Key Gen failed (%d).\n",
+                       __FUNCTION__, lacStatus);
+               icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
+               kmem_cache_free(drvDH_zone, pPhase1OpData);
+       }
+
+       return lacStatus;
+}
+
+/* Name        : icp_ocfDrvModExp
+ *
+ * Description : This function will map ordinary Modular Exponentiation calls
+ * from OCF to the LAC API.
+ *
+ */
+static int icp_ocfDrvModExp(struct cryptkop *krp)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       void *callbackTag = NULL;
+       CpaCyLnModExpOpData *pModExpOpData = NULL;
+       CpaFlatBuffer *pResult = NULL;
+
+       if ((krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits %
+            NUM_BITS_IN_BYTE) != 0) {
+               DPRINTK("%s(): Warning - modulus buffer size (%d) is not a "
+                       "multiple of 8 bits\n", __FUNCTION__,
+                       krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
+                       crp_nbits);
+       }
+
+       /* Result storage space should be the same size as the prime as this
+          value can take up the same amount of storage space */
+       if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_nbits >
+           krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_nbits) {
+               APRINTK("%s(): Return Buffer size must be the same or"
+                       " greater than the Modulus buffer\n", __FUNCTION__);
+               krp->krp_status = EINVAL;
+               return EINVAL;
+       }
+
+       callbackTag = krp;
+
+       pModExpOpData = kmem_cache_zalloc(drvLnModExp_zone, GFP_KERNEL);
+       if (NULL == pModExpOpData) {
+               APRINTK("%s():Failed to get memory for key gen data\n",
+                       __FUNCTION__);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       pResult = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+       if (NULL == pResult) {
+               APRINTK("%s():Failed to get memory for ModExp result\n",
+                       __FUNCTION__);
+               kmem_cache_free(drvLnModExp_zone, pModExpOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       /* Link parameters */
+       pModExpOpData->modulus.pData =
+           krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].crp_p;
+       BITS_TO_BYTES(pModExpOpData->modulus.dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_KRP_PARAM_MODULUS_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(pModExpOpData->modulus.pData,
+                           pModExpOpData->modulus.dataLenInBytes);
+
+       /*OCF patch to Openswan Pluto regularly sends the base value as 2
+          bits in size. In this case, it has been found it is better to
+          use the base size memory space as the input buffer (if the number
+          is in bits is less than a byte, the number of bits is the input
+          value) */
+       if (krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits <
+           NUM_BITS_IN_BYTE) {
+               DPRINTK("%s : base is small (%d)\n", __FUNCTION__, krp->
+                       krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
+               pModExpOpData->base.dataLenInBytes = SINGLE_BYTE_VALUE;
+               pModExpOpData->base.pData =
+                   (uint8_t *) & (krp->
+                                  krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+                                  crp_nbits);
+               *((uint32_t *) pModExpOpData->base.pData) =
+                   htonl(*((uint32_t *) pModExpOpData->base.pData));
+
+       } else {
+
+               DPRINTK("%s : base is big (%d)\n", __FUNCTION__, krp->
+                       krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_nbits);
+               pModExpOpData->base.pData =
+                   krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].crp_p;
+               BITS_TO_BYTES(pModExpOpData->base.dataLenInBytes,
+                             krp->krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+                             crp_nbits);
+               icp_ocfDrvSwapBytes(pModExpOpData->base.pData,
+                                   pModExpOpData->base.dataLenInBytes);
+       }
+
+       pModExpOpData->exponent.pData =
+           krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].crp_p;
+       BITS_TO_BYTES(pModExpOpData->exponent.dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_KRP_PARAM_EXPONENT_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(pModExpOpData->exponent.pData,
+                           pModExpOpData->exponent.dataLenInBytes);
+       /* Output parameters */
+       pResult->pData =
+           krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].crp_p,
+           BITS_TO_BYTES(pResult->dataLenInBytes,
+                         krp->krp_param[ICP_MOD_EXP_KRP_PARAM_RESULT_INDEX].
+                         crp_nbits);
+
+       lacStatus = cpaCyLnModExp(CPA_INSTANCE_HANDLE_SINGLE,
+                                 icp_ocfDrvModExpCallBack,
+                                 callbackTag, pModExpOpData, pResult);
+
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): Mod Exp Operation failed (%d).\n",
+                       __FUNCTION__, lacStatus);
+               krp->krp_status = ECANCELED;
+               icp_ocfDrvFreeFlatBuffer(pResult);
+               kmem_cache_free(drvLnModExp_zone, pModExpOpData);
+       }
+
+       return lacStatus;
+}
+
+/* Name        : icp_ocfDrvModExpCRT
+ *
+ * Description : This function will map ordinary Modular Exponentiation Chinese
+ * Remainder Theorem implementaion calls from OCF to the LAC API.
+ *
+ * Note : Mod Exp CRT for this driver is accelerated through LAC RSA type 2
+ * decrypt operation. Therefore P and Q input values must always be prime
+ * numbers. Although basic primality checks are done in LAC, it is up to the
+ * user to do any correct prime number checking before passing the inputs.
+ */
+
+static int icp_ocfDrvModExpCRT(struct cryptkop *krp)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       CpaCyRsaDecryptOpData *rsaDecryptOpData = NULL;
+       void *callbackTag = NULL;
+       CpaFlatBuffer *pOutputData = NULL;
+
+       /*Parameter input checks are all done by LAC, no need to repeat
+          them here. */
+       callbackTag = krp;
+
+       rsaDecryptOpData = kmem_cache_zalloc(drvRSADecrypt_zone, GFP_KERNEL);
+       if (NULL == rsaDecryptOpData) {
+               APRINTK("%s():Failed to get memory"
+                       " for MOD EXP CRT Op data struct\n", __FUNCTION__);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       rsaDecryptOpData->pRecipientPrivateKey
+           = kmem_cache_zalloc(drvRSAPrivateKey_zone, GFP_KERNEL);
+       if (NULL == rsaDecryptOpData->pRecipientPrivateKey) {
+               APRINTK("%s():Failed to get memory for MOD EXP CRT"
+                       " private key values struct\n", __FUNCTION__);
+               kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       rsaDecryptOpData->pRecipientPrivateKey->
+           version = CPA_CY_RSA_VERSION_TWO_PRIME;
+       rsaDecryptOpData->pRecipientPrivateKey->
+           privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
+
+       pOutputData = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+       if (NULL == pOutputData) {
+               APRINTK("%s():Failed to get memory"
+                       " for MOD EXP CRT output data\n", __FUNCTION__);
+               kmem_cache_free(drvRSAPrivateKey_zone,
+                               rsaDecryptOpData->pRecipientPrivateKey);
+               kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       rsaDecryptOpData->pRecipientPrivateKey->
+           version = CPA_CY_RSA_VERSION_TWO_PRIME;
+       rsaDecryptOpData->pRecipientPrivateKey->
+           privateKeyRepType = CPA_CY_RSA_PRIVATE_KEY_REP_TYPE_2;
+
+       /* Link parameters */
+       rsaDecryptOpData->inputData.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->inputData.dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_I_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->inputData.pData,
+                           rsaDecryptOpData->inputData.dataLenInBytes);
+
+       rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime1P.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+                     prime1P.dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_P_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.prime1P.pData,
+                           rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.prime1P.dataLenInBytes);
+
+       rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.prime2Q.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+                     prime2Q.dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_PRIME_Q_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.prime2Q.pData,
+                           rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.prime2Q.dataLenInBytes);
+
+       rsaDecryptOpData->pRecipientPrivateKey->
+           privateKeyRep2.exponent1Dp.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->privateKeyRep2.
+                     exponent1Dp.dataLenInBytes,
+                     krp->
+                     krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DP_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.exponent1Dp.pData,
+                           rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.exponent1Dp.dataLenInBytes);
+
+       rsaDecryptOpData->pRecipientPrivateKey->
+           privateKeyRep2.exponent2Dq.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
+                     privateKeyRep2.exponent2Dq.dataLenInBytes,
+                     krp->
+                     krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_EXPONENT_DQ_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.exponent2Dq.pData,
+                           rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.exponent2Dq.dataLenInBytes);
+
+       rsaDecryptOpData->pRecipientPrivateKey->
+           privateKeyRep2.coefficientQInv.pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].crp_p;
+       BITS_TO_BYTES(rsaDecryptOpData->pRecipientPrivateKey->
+                     privateKeyRep2.coefficientQInv.dataLenInBytes,
+                     krp->
+                     krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_COEFF_QINV_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.coefficientQInv.pData,
+                           rsaDecryptOpData->pRecipientPrivateKey->
+                           privateKeyRep2.coefficientQInv.dataLenInBytes);
+
+       /* Output Parameter */
+       pOutputData->pData =
+           krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].crp_p;
+       BITS_TO_BYTES(pOutputData->dataLenInBytes,
+                     krp->krp_param[ICP_MOD_EXP_CRT_KRP_PARAM_RESULT_INDEX].
+                     crp_nbits);
+
+       lacStatus = cpaCyRsaDecrypt(CPA_INSTANCE_HANDLE_SINGLE,
+                                   icp_ocfDrvModExpCRTCallBack,
+                                   callbackTag, rsaDecryptOpData, pOutputData);
+
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): Mod Exp CRT Operation failed (%d).\n",
+                       __FUNCTION__, lacStatus);
+               krp->krp_status = ECANCELED;
+               icp_ocfDrvFreeFlatBuffer(pOutputData);
+               kmem_cache_free(drvRSAPrivateKey_zone,
+                               rsaDecryptOpData->pRecipientPrivateKey);
+               kmem_cache_free(drvRSADecrypt_zone, rsaDecryptOpData);
+       }
+
+       return lacStatus;
+}
+
+/* Name        : icp_ocfDrvCheckALessThanB
+ *
+ * Description : This function will check whether the first argument is less
+ * than the second. It is used to check whether the DSA RS sign Random K
+ * value is less than the Prime Q value (as defined in the specification)
+ *
+ */
+static int
+icp_ocfDrvCheckALessThanB(CpaFlatBuffer * pK, CpaFlatBuffer * pQ, int *doCheck)
+{
+
+       uint8_t *MSB_K = pK->pData;
+       uint8_t *MSB_Q = pQ->pData;
+       uint32_t buffer_lengths_in_bytes = pQ->dataLenInBytes;
+
+       if (DONT_RUN_LESS_THAN_CHECK == *doCheck) {
+               return FAIL_A_IS_GREATER_THAN_B;
+       }
+
+/*Check MSBs
+if A == B, check next MSB
+if A > B, return A_IS_GREATER_THAN_B
+if A < B, return A_IS_LESS_THAN_B (success)
+*/
+       while (*MSB_K == *MSB_Q) {
+               MSB_K++;
+               MSB_Q++;
+
+               buffer_lengths_in_bytes--;
+               if (0 == buffer_lengths_in_bytes) {
+                       DPRINTK("%s() Buffers have equal value!!\n",
+                               __FUNCTION__);
+                       return FAIL_A_IS_EQUAL_TO_B;
+               }
+
+       }
+
+       if (*MSB_K < *MSB_Q) {
+               return SUCCESS_A_IS_LESS_THAN_B;
+       } else {
+               return FAIL_A_IS_GREATER_THAN_B;
+       }
+
+}
+
+/* Name        : icp_ocfDrvDsaSign
+ *
+ * Description : This function will map DSA RS Sign from OCF to the LAC API.
+ *
+ * NOTE: From looking at OCF patch to OpenSSL and even the number of input
+ * parameters, OCF expects us to generate the random seed value. This value
+ * is generated and passed to LAC, however the number is discared in the
+ * callback and not returned to the user.
+ */
+static int icp_ocfDrvDsaSign(struct cryptkop *krp)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       CpaCyDsaRSSignOpData *dsaRsSignOpData = NULL;
+       void *callbackTag = NULL;
+       CpaCyRandGenOpData randGenOpData;
+       int primeQSizeInBytes = 0;
+       int doCheck = 0;
+       CpaFlatBuffer randData;
+       CpaBoolean protocolStatus = CPA_FALSE;
+       CpaFlatBuffer *pR = NULL;
+       CpaFlatBuffer *pS = NULL;
+
+       callbackTag = krp;
+
+       BITS_TO_BYTES(primeQSizeInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
+                     crp_nbits);
+
+       if (DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES != primeQSizeInBytes) {
+               APRINTK("%s(): DSA PRIME Q size not equal to the "
+                       "FIPS defined 20bytes, = %d\n",
+                       __FUNCTION__, primeQSizeInBytes);
+               krp->krp_status = EDOM;
+               return EDOM;
+       }
+
+       dsaRsSignOpData = kmem_cache_zalloc(drvDSARSSign_zone, GFP_KERNEL);
+       if (NULL == dsaRsSignOpData) {
+               APRINTK("%s():Failed to get memory"
+                       " for DSA RS Sign Op data struct\n", __FUNCTION__);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       dsaRsSignOpData->K.pData =
+           kmem_cache_alloc(drvDSARSSignKValue_zone, GFP_ATOMIC);
+
+       if (NULL == dsaRsSignOpData->K.pData) {
+               APRINTK("%s():Failed to get memory"
+                       " for DSA RS Sign Op Random value\n", __FUNCTION__);
+               kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       pR = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+       if (NULL == pR) {
+               APRINTK("%s():Failed to get memory"
+                       " for DSA signature R\n", __FUNCTION__);
+               kmem_cache_free(drvDSARSSignKValue_zone,
+                               dsaRsSignOpData->K.pData);
+               kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       pS = kmem_cache_zalloc(drvFlatBuffer_zone, GFP_KERNEL);
+       if (NULL == pS) {
+               APRINTK("%s():Failed to get memory"
+                       " for DSA signature S\n", __FUNCTION__);
+               icp_ocfDrvFreeFlatBuffer(pR);
+               kmem_cache_free(drvDSARSSignKValue_zone,
+                               dsaRsSignOpData->K.pData);
+               kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       /*link prime number parameter for ease of processing */
+       dsaRsSignOpData->P.pData =
+           krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].crp_p;
+       BITS_TO_BYTES(dsaRsSignOpData->P.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_P_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(dsaRsSignOpData->P.pData,
+                           dsaRsSignOpData->P.dataLenInBytes);
+
+       dsaRsSignOpData->Q.pData =
+           krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+       BITS_TO_BYTES(dsaRsSignOpData->Q.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_PRIME_Q_INDEX].
+                     crp_nbits);
+
+       icp_ocfDrvSwapBytes(dsaRsSignOpData->Q.pData,
+                           dsaRsSignOpData->Q.dataLenInBytes);
+
+       /*generate random number with equal buffer size to Prime value Q,
+          but value less than Q */
+       dsaRsSignOpData->K.dataLenInBytes = dsaRsSignOpData->Q.dataLenInBytes;
+
+       randGenOpData.generateBits = CPA_TRUE;
+       randGenOpData.lenInBytes = dsaRsSignOpData->K.dataLenInBytes;
+
+       icp_ocfDrvPtrAndLenToFlatBuffer(dsaRsSignOpData->K.pData,
+                                       dsaRsSignOpData->K.dataLenInBytes,
+                                       &randData);
+
+       doCheck = 0;
+       while (icp_ocfDrvCheckALessThanB(&(dsaRsSignOpData->K),
+                                        &(dsaRsSignOpData->Q), &doCheck)) {
+
+               if (CPA_STATUS_SUCCESS
+                   != cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+                                   NULL, NULL, &randGenOpData, &randData)) {
+                       APRINTK("%s(): ERROR - Failed to generate DSA RS Sign K"
+                               "value\n", __FUNCTION__);
+                       icp_ocfDrvFreeFlatBuffer(pS);
+                       icp_ocfDrvFreeFlatBuffer(pR);
+                       kmem_cache_free(drvDSARSSignKValue_zone,
+                                       dsaRsSignOpData->K.pData);
+                       kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+                       krp->krp_status = EAGAIN;
+                       return EAGAIN;
+               }
+
+               doCheck++;
+               if (DSA_SIGN_RAND_GEN_VAL_CHECK_MAX_ITERATIONS == doCheck) {
+                       APRINTK("%s(): ERROR - Failed to find DSA RS Sign K "
+                               "value less than Q value\n", __FUNCTION__);
+                       icp_ocfDrvFreeFlatBuffer(pS);
+                       icp_ocfDrvFreeFlatBuffer(pR);
+                       kmem_cache_free(drvDSARSSignKValue_zone,
+                                       dsaRsSignOpData->K.pData);
+                       kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+                       krp->krp_status = EAGAIN;
+                       return EAGAIN;
+               }
+
+       }
+       /*Rand Data - no need to swap bytes for pK */
+
+       /* Link parameters */
+       dsaRsSignOpData->G.pData =
+           krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_p;
+       BITS_TO_BYTES(dsaRsSignOpData->G.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_G_INDEX].crp_nbits);
+
+       icp_ocfDrvSwapBytes(dsaRsSignOpData->G.pData,
+                           dsaRsSignOpData->G.dataLenInBytes);
+
+       dsaRsSignOpData->X.pData =
+           krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_p;
+       BITS_TO_BYTES(dsaRsSignOpData->X.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_X_INDEX].crp_nbits);
+       icp_ocfDrvSwapBytes(dsaRsSignOpData->X.pData,
+                           dsaRsSignOpData->X.dataLenInBytes);
+
+       dsaRsSignOpData->M.pData =
+           krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].crp_p;
+       BITS_TO_BYTES(dsaRsSignOpData->M.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_DGST_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaRsSignOpData->M.pData,
+                           dsaRsSignOpData->M.dataLenInBytes);
+
+       /* Output Parameters */
+       pS->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].crp_p;
+       BITS_TO_BYTES(pS->dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_S_RESULT_INDEX].
+                     crp_nbits);
+
+       pR->pData = krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].crp_p;
+       BITS_TO_BYTES(pR->dataLenInBytes,
+                     krp->krp_param[ICP_DSA_SIGN_KRP_PARAM_R_RESULT_INDEX].
+                     crp_nbits);
+
+       lacStatus = cpaCyDsaSignRS(CPA_INSTANCE_HANDLE_SINGLE,
+                                  icp_ocfDrvDsaRSSignCallBack,
+                                  callbackTag, dsaRsSignOpData,
+                                  &protocolStatus, pR, pS);
+
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): DSA RS Sign Operation failed (%d).\n",
+                       __FUNCTION__, lacStatus);
+               krp->krp_status = ECANCELED;
+               icp_ocfDrvFreeFlatBuffer(pS);
+               icp_ocfDrvFreeFlatBuffer(pR);
+               kmem_cache_free(drvDSARSSignKValue_zone,
+                               dsaRsSignOpData->K.pData);
+               kmem_cache_free(drvDSARSSign_zone, dsaRsSignOpData);
+       }
+
+       return lacStatus;
+}
+
+/* Name        : icp_ocfDrvDsaVerify
+ *
+ * Description : This function will map DSA RS Verify from OCF to the LAC API.
+ *
+ */
+static int icp_ocfDrvDsaVerify(struct cryptkop *krp)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       CpaCyDsaVerifyOpData *dsaVerifyOpData = NULL;
+       void *callbackTag = NULL;
+       CpaBoolean verifyStatus = CPA_FALSE;
+
+       callbackTag = krp;
+
+       dsaVerifyOpData = kmem_cache_zalloc(drvDSAVerify_zone, GFP_KERNEL);
+       if (NULL == dsaVerifyOpData) {
+               APRINTK("%s():Failed to get memory"
+                       " for DSA Verify Op data struct\n", __FUNCTION__);
+               krp->krp_status = ENOMEM;
+               return ENOMEM;
+       }
+
+       /* Link parameters */
+       dsaVerifyOpData->P.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->P.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_P_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->P.pData,
+                           dsaVerifyOpData->P.dataLenInBytes);
+
+       dsaVerifyOpData->Q.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->Q.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PRIME_Q_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->Q.pData,
+                           dsaVerifyOpData->Q.dataLenInBytes);
+
+       dsaVerifyOpData->G.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->G.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_G_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->G.pData,
+                           dsaVerifyOpData->G.dataLenInBytes);
+
+       dsaVerifyOpData->Y.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->Y.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_PUBKEY_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->Y.pData,
+                           dsaVerifyOpData->Y.dataLenInBytes);
+
+       dsaVerifyOpData->M.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->M.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_DGST_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->M.pData,
+                           dsaVerifyOpData->M.dataLenInBytes);
+
+       dsaVerifyOpData->R.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->R.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_R_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->R.pData,
+                           dsaVerifyOpData->R.dataLenInBytes);
+
+       dsaVerifyOpData->S.pData =
+           krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].crp_p;
+       BITS_TO_BYTES(dsaVerifyOpData->S.dataLenInBytes,
+                     krp->krp_param[ICP_DSA_VERIFY_KRP_PARAM_SIG_S_INDEX].
+                     crp_nbits);
+       icp_ocfDrvSwapBytes(dsaVerifyOpData->S.pData,
+                           dsaVerifyOpData->S.dataLenInBytes);
+
+       lacStatus = cpaCyDsaVerify(CPA_INSTANCE_HANDLE_SINGLE,
+                                  icp_ocfDrvDsaVerifyCallBack,
+                                  callbackTag, dsaVerifyOpData, &verifyStatus);
+
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): DSA Verify Operation failed (%d).\n",
+                       __FUNCTION__, lacStatus);
+               kmem_cache_free(drvDSAVerify_zone, dsaVerifyOpData);
+               krp->krp_status = ECANCELED;
+       }
+
+       return lacStatus;
+}
+
+/* Name        : icp_ocfDrvReadRandom
+ *
+ * Description : This function will map RNG functionality calls from OCF
+ * to the LAC API.
+ */
+int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       CpaCyRandGenOpData randGenOpData;
+       CpaFlatBuffer randData;
+
+       if (NULL == buf) {
+               APRINTK("%s(): Invalid input parameters\n", __FUNCTION__);
+               return EINVAL;
+       }
+
+       /* maxwords here is number of integers to generate data for */
+       randGenOpData.generateBits = CPA_TRUE;
+
+       randGenOpData.lenInBytes = maxwords * sizeof(uint32_t);
+
+       icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *) buf,
+                                       randGenOpData.lenInBytes, &randData);
+
+       lacStatus = cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+                                NULL, NULL, &randGenOpData, &randData);
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): icp_LacSymRandGen failed (%d). \n",
+                       __FUNCTION__, lacStatus);
+               return RETURN_RAND_NUM_GEN_FAILED;
+       }
+
+       return randGenOpData.lenInBytes / sizeof(uint32_t);
+}
+
+/* Name        : icp_ocfDrvDhP1Callback
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DH operation.
+ */
+static void
+icp_ocfDrvDhP1CallBack(void *callbackTag,
+                      CpaStatus status,
+                      void *pOpData, CpaFlatBuffer * pLocalOctetStringPV)
+{
+       struct cryptkop *krp = NULL;
+       CpaCyDhPhase1KeyGenOpData *pPhase1OpData = NULL;
+
+       if (NULL == callbackTag) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "callbackTag data is NULL\n", __FUNCTION__);
+               return;
+       }
+       krp = (struct cryptkop *)callbackTag;
+
+       if (NULL == pOpData) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "Operation Data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+       pPhase1OpData = (CpaCyDhPhase1KeyGenOpData *) pOpData;
+
+       if (NULL == pLocalOctetStringPV) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "pLocalOctetStringPV Data is NULL\n", __FUNCTION__);
+               memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
+               kmem_cache_free(drvDH_zone, pPhase1OpData);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+
+       if (CPA_STATUS_SUCCESS == status) {
+               krp->krp_status = CRYPTO_OP_SUCCESS;
+       } else {
+               APRINTK("%s(): Diffie Hellman Phase1 Key Gen failed - "
+                       "Operation Status = %d\n", __FUNCTION__, status);
+               krp->krp_status = ECANCELED;
+       }
+
+       icp_ocfDrvSwapBytes(pLocalOctetStringPV->pData,
+                           pLocalOctetStringPV->dataLenInBytes);
+
+       icp_ocfDrvFreeFlatBuffer(pLocalOctetStringPV);
+       memset(pPhase1OpData, 0, sizeof(CpaCyDhPhase1KeyGenOpData));
+       kmem_cache_free(drvDH_zone, pPhase1OpData);
+
+       crypto_kdone(krp);
+
+       return;
+}
+
+/* Name        : icp_ocfDrvModExpCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the Mod Exp operation.
+ */
+static void
+icp_ocfDrvModExpCallBack(void *callbackTag,
+                        CpaStatus status,
+                        void *pOpdata, CpaFlatBuffer * pResult)
+{
+       struct cryptkop *krp = NULL;
+       CpaCyLnModExpOpData *pLnModExpOpData = NULL;
+
+       if (NULL == callbackTag) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "callbackTag data is NULL\n", __FUNCTION__);
+               return;
+       }
+       krp = (struct cryptkop *)callbackTag;
+
+       if (NULL == pOpdata) {
+               DPRINTK("%s(): Invalid Mod Exp input parameters - "
+                       "Operation Data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+       pLnModExpOpData = (CpaCyLnModExpOpData *) pOpdata;
+
+       if (NULL == pResult) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "pResult data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
+               kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
+               crypto_kdone(krp);
+               return;
+       }
+
+       if (CPA_STATUS_SUCCESS == status) {
+               krp->krp_status = CRYPTO_OP_SUCCESS;
+       } else {
+               APRINTK("%s(): LAC Mod Exp Operation failed - "
+                       "Operation Status = %d\n", __FUNCTION__, status);
+               krp->krp_status = ECANCELED;
+       }
+
+       icp_ocfDrvSwapBytes(pResult->pData, pResult->dataLenInBytes);
+
+       /*switch base size value back to original */
+       if (pLnModExpOpData->base.pData ==
+           (uint8_t *) & (krp->
+                          krp_param[ICP_MOD_EXP_KRP_PARAM_BASE_INDEX].
+                          crp_nbits)) {
+               *((uint32_t *) pLnModExpOpData->base.pData) =
+                   ntohl(*((uint32_t *) pLnModExpOpData->base.pData));
+       }
+       icp_ocfDrvFreeFlatBuffer(pResult);
+       memset(pLnModExpOpData, 0, sizeof(CpaCyLnModExpOpData));
+       kmem_cache_free(drvLnModExp_zone, pLnModExpOpData);
+
+       crypto_kdone(krp);
+
+       return;
+
+}
+
+/* Name        : icp_ocfDrvModExpCRTCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the Mod Exp CRT operation.
+ */
+static void
+icp_ocfDrvModExpCRTCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData, CpaFlatBuffer * pOutputData)
+{
+       struct cryptkop *krp = NULL;
+       CpaCyRsaDecryptOpData *pDecryptData = NULL;
+
+       if (NULL == callbackTag) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "callbackTag data is NULL\n", __FUNCTION__);
+               return;
+       }
+
+       krp = (struct cryptkop *)callbackTag;
+
+       if (NULL == pOpData) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "Operation Data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+       pDecryptData = (CpaCyRsaDecryptOpData *) pOpData;
+
+       if (NULL == pOutputData) {
+               DPRINTK("%s(): Invalid input parameter - "
+                       "pOutputData is NULL\n", __FUNCTION__);
+               memset(pDecryptData->pRecipientPrivateKey, 0,
+                      sizeof(CpaCyRsaPrivateKey));
+               kmem_cache_free(drvRSAPrivateKey_zone,
+                               pDecryptData->pRecipientPrivateKey);
+               memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
+               kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+
+       if (CPA_STATUS_SUCCESS == status) {
+               krp->krp_status = CRYPTO_OP_SUCCESS;
+       } else {
+               APRINTK("%s(): LAC Mod Exp CRT operation failed - "
+                       "Operation Status = %d\n", __FUNCTION__, status);
+               krp->krp_status = ECANCELED;
+       }
+
+       icp_ocfDrvSwapBytes(pOutputData->pData, pOutputData->dataLenInBytes);
+
+       icp_ocfDrvFreeFlatBuffer(pOutputData);
+       memset(pDecryptData->pRecipientPrivateKey, 0,
+              sizeof(CpaCyRsaPrivateKey));
+       kmem_cache_free(drvRSAPrivateKey_zone,
+                       pDecryptData->pRecipientPrivateKey);
+       memset(pDecryptData, 0, sizeof(CpaCyRsaDecryptOpData));
+       kmem_cache_free(drvRSADecrypt_zone, pDecryptData);
+
+       crypto_kdone(krp);
+
+       return;
+}
+
+/* Name        : icp_ocfDrvDsaRSSignCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DSA RS sign operation.
+ */
+static void
+icp_ocfDrvDsaRSSignCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData,
+                           CpaBoolean protocolStatus,
+                           CpaFlatBuffer * pR, CpaFlatBuffer * pS)
+{
+       struct cryptkop *krp = NULL;
+       CpaCyDsaRSSignOpData *pSignData = NULL;
+
+       if (NULL == callbackTag) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "callbackTag data is NULL\n", __FUNCTION__);
+               return;
+       }
+
+       krp = (struct cryptkop *)callbackTag;
+
+       if (NULL == pOpData) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "Operation Data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+       pSignData = (CpaCyDsaRSSignOpData *) pOpData;
+
+       if (NULL == pR) {
+               DPRINTK("%s(): Invalid input parameter - "
+                       "pR sign is NULL\n", __FUNCTION__);
+               icp_ocfDrvFreeFlatBuffer(pS);
+               kmem_cache_free(drvDSARSSign_zone, pSignData);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+
+       if (NULL == pS) {
+               DPRINTK("%s(): Invalid input parameter - "
+                       "pS sign is NULL\n", __FUNCTION__);
+               icp_ocfDrvFreeFlatBuffer(pR);
+               kmem_cache_free(drvDSARSSign_zone, pSignData);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+
+       if (CPA_STATUS_SUCCESS != status) {
+               APRINTK("%s(): LAC DSA RS Sign operation failed - "
+                       "Operation Status = %d\n", __FUNCTION__, status);
+               krp->krp_status = ECANCELED;
+       } else {
+               krp->krp_status = CRYPTO_OP_SUCCESS;
+
+               if (CPA_TRUE != protocolStatus) {
+                       DPRINTK("%s(): LAC DSA RS Sign operation failed due "
+                               "to protocol error\n", __FUNCTION__);
+                       krp->krp_status = EIO;
+               }
+       }
+
+       /* Swap bytes only when the callback status is successful and
+          protocolStatus is set to true */
+       if (CPA_STATUS_SUCCESS == status && CPA_TRUE == protocolStatus) {
+               icp_ocfDrvSwapBytes(pR->pData, pR->dataLenInBytes);
+               icp_ocfDrvSwapBytes(pS->pData, pS->dataLenInBytes);
+       }
+
+       icp_ocfDrvFreeFlatBuffer(pR);
+       icp_ocfDrvFreeFlatBuffer(pS);
+       memset(pSignData->K.pData, 0, pSignData->K.dataLenInBytes);
+       kmem_cache_free(drvDSARSSignKValue_zone, pSignData->K.pData);
+       memset(pSignData, 0, sizeof(CpaCyDsaRSSignOpData));
+       kmem_cache_free(drvDSARSSign_zone, pSignData);
+       crypto_kdone(krp);
+
+       return;
+}
+
+/* Name        : icp_ocfDrvDsaVerifyCallback
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the DSA Verify operation.
+ */
+static void
+icp_ocfDrvDsaVerifyCallBack(void *callbackTag,
+                           CpaStatus status,
+                           void *pOpData, CpaBoolean verifyStatus)
+{
+
+       struct cryptkop *krp = NULL;
+       CpaCyDsaVerifyOpData *pVerData = NULL;
+
+       if (NULL == callbackTag) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "callbackTag data is NULL\n", __FUNCTION__);
+               return;
+       }
+
+       krp = (struct cryptkop *)callbackTag;
+
+       if (NULL == pOpData) {
+               DPRINTK("%s(): Invalid input parameters - "
+                       "Operation Data is NULL\n", __FUNCTION__);
+               krp->krp_status = ECANCELED;
+               crypto_kdone(krp);
+               return;
+       }
+       pVerData = (CpaCyDsaVerifyOpData *) pOpData;
+
+       if (CPA_STATUS_SUCCESS != status) {
+               APRINTK("%s(): LAC DSA Verify operation failed - "
+                       "Operation Status = %d\n", __FUNCTION__, status);
+               krp->krp_status = ECANCELED;
+       } else {
+               krp->krp_status = CRYPTO_OP_SUCCESS;
+
+               if (CPA_TRUE != verifyStatus) {
+                       DPRINTK("%s(): DSA signature invalid\n", __FUNCTION__);
+                       krp->krp_status = EIO;
+               }
+       }
+
+       /* Swap bytes only when the callback status is successful and
+          verifyStatus is set to true */
+       /*Just swapping back the key values for now. Possibly all
+          swapped buffers need to be reverted */
+       if (CPA_STATUS_SUCCESS == status && CPA_TRUE == verifyStatus) {
+               icp_ocfDrvSwapBytes(pVerData->R.pData,
+                                   pVerData->R.dataLenInBytes);
+               icp_ocfDrvSwapBytes(pVerData->S.pData,
+                                   pVerData->S.dataLenInBytes);
+       }
+
+       memset(pVerData, 0, sizeof(CpaCyDsaVerifyOpData));
+       kmem_cache_free(drvDSAVerify_zone, pVerData);
+       crypto_kdone(krp);
+
+       return;
+}
--- /dev/null
+++ b/crypto/ocf/ep80579/icp_common.c
@@ -0,0 +1,891 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+/*
+ * An OCF module that uses Intel® QuickAssist Integrated Accelerator to do the 
+ * crypto.
+ *
+ * This driver requires the ICP Access Library that is available from Intel in
+ * order to operate.
+ */
+
+#include "icp_ocf.h"
+
+#define ICP_OCF_COMP_NAME                      "ICP_OCF"
+#define ICP_OCF_VER_MAIN                       (2)
+#define ICP_OCF_VER_MJR                                (0)
+#define ICP_OCF_VER_MNR                        (0)
+
+#define MAX_DEREG_RETRIES                      (100)
+#define DEFAULT_DEREG_RETRIES                  (10)
+#define DEFAULT_DEREG_DELAY_IN_JIFFIES         (10)
+
+/* This defines the maximum number of sessions possible between OCF
+   and the OCF Tolapai Driver. If set to zero, there is no limit. */
+#define DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT   (0)
+#define NUM_SUPPORTED_CAPABILITIES             (21)
+
+/*Slabs zones*/
+struct kmem_cache *drvSessionData_zone = NULL;
+struct kmem_cache *drvOpData_zone = NULL;
+struct kmem_cache *drvDH_zone = NULL;
+struct kmem_cache *drvLnModExp_zone = NULL;
+struct kmem_cache *drvRSADecrypt_zone = NULL;
+struct kmem_cache *drvRSAPrivateKey_zone = NULL;
+struct kmem_cache *drvDSARSSign_zone = NULL;
+struct kmem_cache *drvDSARSSignKValue_zone = NULL;
+struct kmem_cache *drvDSAVerify_zone = NULL;
+
+/*Slab zones for flatbuffers and bufferlist*/
+struct kmem_cache *drvFlatBuffer_zone = NULL;
+
+static int icp_ocfDrvInit(void);
+static void icp_ocfDrvExit(void);
+static void icp_ocfDrvFreeCaches(void);
+static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg);
+
+int32_t icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+
+/* Module parameter - gives the number of times LAC deregistration shall be
+   re-tried */
+int num_dereg_retries = DEFAULT_DEREG_RETRIES;
+
+/* Module parameter - gives the delay time in jiffies before a LAC session 
+   shall be attempted to be deregistered again */
+int dereg_retry_delay_in_jiffies = DEFAULT_DEREG_DELAY_IN_JIFFIES;
+
+/* Module parameter - gives the maximum number of sessions possible between
+   OCF and the OCF Tolapai Driver. If set to zero, there is no limit.*/
+int max_sessions = DEFAULT_OCF_TO_DRV_MAX_SESSION_COUNT;
+
+/* This is set when the module is removed from the system, no further
+   processing can take place if this is set */
+atomic_t icp_ocfDrvIsExiting = ATOMIC_INIT(0);
+
+/* This is used to show how many lac sessions were not deregistered*/
+atomic_t lac_session_failed_dereg_count = ATOMIC_INIT(0);
+
+/* This is used to track the number of registered sessions between OCF and
+ * and the OCF Tolapai driver, when max_session is set to value other than
+ * zero. This ensures that the max_session set for the OCF and the driver
+ * is equal to the LAC registered sessions */
+atomic_t num_ocf_to_drv_registered_sessions = ATOMIC_INIT(0);
+
+/* Head of linked list used to store session data */
+struct list_head icp_ocfDrvGlobalSymListHead;
+struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
+
+spinlock_t icp_ocfDrvSymSessInfoListSpinlock = SPIN_LOCK_UNLOCKED;
+rwlock_t icp_kmem_cache_destroy_alloc_lock = RW_LOCK_UNLOCKED;
+
+struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
+
+struct icp_drvBuffListInfo defBuffListInfo;
+
+static struct {
+       softc_device_decl sc_dev;
+} icpDev;
+
+static device_method_t icp_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession, icp_ocfDrvNewSession),
+       DEVMETHOD(cryptodev_freesession, icp_ocfDrvFreeLACSession),
+       DEVMETHOD(cryptodev_process, icp_ocfDrvSymProcess),
+       DEVMETHOD(cryptodev_kprocess, icp_ocfDrvPkeProcess),
+};
+
+module_param(num_dereg_retries, int, S_IRUGO);
+module_param(dereg_retry_delay_in_jiffies, int, S_IRUGO);
+module_param(max_sessions, int, S_IRUGO);
+
+MODULE_PARM_DESC(num_dereg_retries,
+                "Number of times to retry LAC Sym Session Deregistration. "
+                "Default 10, Max 100");
+MODULE_PARM_DESC(dereg_retry_delay_in_jiffies, "Delay in jiffies "
+                "(added to a schedule() function call) before a LAC Sym "
+                "Session Dereg is retried. Default 10");
+MODULE_PARM_DESC(max_sessions, "This sets the maximum number of sessions "
+                "between OCF and this driver. If this value is set to zero, "
+                "max session count checking is disabled. Default is zero(0)");
+
+/* Name        : icp_ocfDrvInit
+ *
+ * Description : This function will register all the symmetric and asymmetric
+ * functionality that will be accelerated by the hardware. It will also
+ * get a unique driver ID from the OCF and initialise all slab caches
+ */
+static int __init icp_ocfDrvInit(void)
+{
+       int ocfStatus = 0;
+
+       IPRINTK("=== %s ver %d.%d.%d ===\n", ICP_OCF_COMP_NAME,
+               ICP_OCF_VER_MAIN, ICP_OCF_VER_MJR, ICP_OCF_VER_MNR);
+
+       if (MAX_DEREG_RETRIES < num_dereg_retries) {
+               EPRINTK("Session deregistration retry count set to greater "
+                       "than %d", MAX_DEREG_RETRIES);
+               return -1;
+       }
+
+       /* Initialize and Start the Cryptographic component */
+       if (CPA_STATUS_SUCCESS !=
+           cpaCyStartInstance(CPA_INSTANCE_HANDLE_SINGLE)) {
+               EPRINTK("Failed to initialize and start the instance "
+                       "of the Cryptographic component.\n");
+               return -1;
+       }
+
+       /* Set the default size of BufferList to allocate */
+       memset(&defBuffListInfo, 0, sizeof(struct icp_drvBuffListInfo));
+       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+           icp_ocfDrvBufferListMemInfo(ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS,
+                                       &defBuffListInfo)) {
+               EPRINTK("Failed to get bufferlist memory info.\n");
+               return -1;
+       }
+
+       /*Register OCF Tolapai Driver with OCF */
+       memset(&icpDev, 0, sizeof(icpDev));
+       softc_device_init(&icpDev, "icp", 0, icp_methods);
+
+       icp_ocfDrvDriverId = crypto_get_driverid(softc_get_device(&icpDev),
+                                                CRYPTOCAP_F_HARDWARE);
+
+       if (icp_ocfDrvDriverId < 0) {
+               EPRINTK("%s : ICP driver failed to register with OCF!\n",
+                       __FUNCTION__);
+               return -ENODEV;
+       }
+
+       /*Create all the slab caches used by the OCF Tolapai Driver */
+       drvSessionData_zone =
+           ICP_CACHE_CREATE("ICP Session Data", struct icp_drvSessionData);
+       ICP_CACHE_NULL_CHECK(drvSessionData_zone);
+
+       /* 
+        * Allocation of the OpData includes the allocation space for meta data.
+        * The memory after the opData structure is reserved for this meta data.
+        */
+       drvOpData_zone =
+           kmem_cache_create("ICP Op Data", sizeof(struct icp_drvOpData) +
+                   defBuffListInfo.metaSize ,0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+
+
+       ICP_CACHE_NULL_CHECK(drvOpData_zone);
+
+       drvDH_zone = ICP_CACHE_CREATE("ICP DH data", CpaCyDhPhase1KeyGenOpData);
+       ICP_CACHE_NULL_CHECK(drvDH_zone);
+
+       drvLnModExp_zone =
+           ICP_CACHE_CREATE("ICP ModExp data", CpaCyLnModExpOpData);
+       ICP_CACHE_NULL_CHECK(drvLnModExp_zone);
+
+       drvRSADecrypt_zone =
+           ICP_CACHE_CREATE("ICP RSA decrypt data", CpaCyRsaDecryptOpData);
+       ICP_CACHE_NULL_CHECK(drvRSADecrypt_zone);
+
+       drvRSAPrivateKey_zone =
+           ICP_CACHE_CREATE("ICP RSA private key data", CpaCyRsaPrivateKey);
+       ICP_CACHE_NULL_CHECK(drvRSAPrivateKey_zone);
+
+       drvDSARSSign_zone =
+           ICP_CACHE_CREATE("ICP DSA Sign", CpaCyDsaRSSignOpData);
+       ICP_CACHE_NULL_CHECK(drvDSARSSign_zone);
+
+       /*too awkward to use a macro here */
+       drvDSARSSignKValue_zone =
+           kmem_cache_create("ICP DSA Sign Rand Val",
+                             DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES, 0,
+                             SLAB_HWCACHE_ALIGN, NULL, NULL);
+       ICP_CACHE_NULL_CHECK(drvDSARSSignKValue_zone);
+
+       drvDSAVerify_zone =
+           ICP_CACHE_CREATE("ICP DSA Verify", CpaCyDsaVerifyOpData);
+       ICP_CACHE_NULL_CHECK(drvDSAVerify_zone);
+
+       drvFlatBuffer_zone =
+           ICP_CACHE_CREATE("ICP Flat Buffers", CpaFlatBuffer);
+       ICP_CACHE_NULL_CHECK(drvFlatBuffer_zone);
+
+       /* Register the ICP symmetric crypto support. */
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_NULL_CBC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_DES_CBC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_3DES_CBC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_AES_CBC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_ARC4);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_MD5_HMAC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA1_HMAC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_256_HMAC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_384_HMAC);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512);
+       ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(CRYPTO_SHA2_512_HMAC);
+
+       /* Register the ICP asymmetric algorithm support */
+       ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DH_COMPUTE_KEY);
+       ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP);
+       ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_MOD_EXP_CRT);
+       ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_SIGN);
+       ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(CRK_DSA_VERIFY);
+
+       /* Register the ICP random number generator support */
+       if (OCF_REGISTRATION_STATUS_SUCCESS ==
+           crypto_rregister(icp_ocfDrvDriverId, icp_ocfDrvReadRandom, NULL)) {
+               ocfStatus++;
+       }
+
+       if (OCF_ZERO_FUNCTIONALITY_REGISTERED == ocfStatus) {
+               DPRINTK("%s: Failed to register any device capabilities\n",
+                       __FUNCTION__);
+               icp_ocfDrvFreeCaches();
+               icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+               return -ECANCELED;
+       }
+
+       DPRINTK("%s: Registered %d of %d device capabilities\n",
+               __FUNCTION__, ocfStatus, NUM_SUPPORTED_CAPABILITIES);
+
+/*Session data linked list used during module exit*/
+       INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead);
+       INIT_LIST_HEAD(&icp_ocfDrvGlobalSymListHead_FreeMemList);
+
+       icp_ocfDrvFreeLacSessionWorkQ =
+           create_singlethread_workqueue("ocfLacDeregWorkQueue");
+
+       return 0;
+}
+
+/* Name        : icp_ocfDrvExit
+ *
+ * Description : This function will deregister all the symmetric sessions
+ * registered with the LAC component. It will also deregister all symmetric
+ * and asymmetric functionality that can be accelerated by the hardware via OCF
+ * and random number generation if it is enabled.
+ */
+static void icp_ocfDrvExit(void)
+{
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       struct icp_drvSessionData *sessionData = NULL;
+       struct icp_drvSessionData *tempSessionData = NULL;
+       int i, remaining_delay_time_in_jiffies = 0;
+       /* There is a possibility of a process or new session command being   */
+       /* sent before this variable is incremented. The aim of this variable */
+       /* is to stop a loop of calls creating a deadlock situation which     */
+       /* would prevent the driver from exiting.                             */
+
+       atomic_inc(&icp_ocfDrvIsExiting);
+
+       /*Existing sessions will be routed to another driver after these calls */
+       crypto_unregister_all(icp_ocfDrvDriverId);
+       crypto_runregister_all(icp_ocfDrvDriverId);
+
+       /*If any sessions are waiting to be deregistered, do that. This also 
+          flushes the work queue */
+       destroy_workqueue(icp_ocfDrvFreeLacSessionWorkQ);
+
+       /*ENTER CRITICAL SECTION */
+       spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+       list_for_each_entry_safe(tempSessionData, sessionData,
+                                &icp_ocfDrvGlobalSymListHead, listNode) {
+               for (i = 0; i < num_dereg_retries; i++) {
+                       /*No harm if bad input - LAC will handle error cases */
+                       if (ICP_SESSION_RUNNING == tempSessionData->inUse) {
+                               lacStatus =
+                                   cpaCySymRemoveSession
+                                   (CPA_INSTANCE_HANDLE_SINGLE,
+                                    tempSessionData->sessHandle);
+                               if (CPA_STATUS_SUCCESS == lacStatus) {
+                                       /* Succesfully deregistered */
+                                       break;
+                               } else if (CPA_STATUS_RETRY != lacStatus) {
+                                       atomic_inc
+                                           (&lac_session_failed_dereg_count);
+                                       break;
+                               }
+
+                               /*schedule_timout returns the time left for completion if 
+                                * this task is set to TASK_INTERRUPTIBLE */
+                               remaining_delay_time_in_jiffies =
+                                   dereg_retry_delay_in_jiffies;
+                               while (0 > remaining_delay_time_in_jiffies) {
+                                       remaining_delay_time_in_jiffies =
+                                           schedule_timeout
+                                           (remaining_delay_time_in_jiffies);
+                               }
+
+                               DPRINTK
+                                   ("%s(): Retry %d to deregistrate the session\n",
+                                    __FUNCTION__, i);
+                       }
+               }
+
+               /*remove from current list */
+               list_del(&(tempSessionData->listNode));
+               /*add to free mem linked list */
+               list_add(&(tempSessionData->listNode),
+                        &icp_ocfDrvGlobalSymListHead_FreeMemList);
+
+       }
+
+       /*EXIT CRITICAL SECTION */
+       spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+       /*set back to initial values */
+       sessionData = NULL;
+       /*still have a reference in our list! */
+       tempSessionData = NULL;
+       /*free memory */
+       list_for_each_entry_safe(tempSessionData, sessionData,
+                                &icp_ocfDrvGlobalSymListHead_FreeMemList,
+                                listNode) {
+
+               list_del(&(tempSessionData->listNode));
+               /* Free allocated CpaCySymSessionCtx */
+               if (NULL != tempSessionData->sessHandle) {
+                       kfree(tempSessionData->sessHandle);
+               }
+               memset(tempSessionData, 0, sizeof(struct icp_drvSessionData));
+               kmem_cache_free(drvSessionData_zone, tempSessionData);
+       }
+
+       if (0 != atomic_read(&lac_session_failed_dereg_count)) {
+               DPRINTK("%s(): %d LAC sessions were not deregistered "
+                       "correctly. This is not a clean exit! \n",
+                       __FUNCTION__,
+                       atomic_read(&lac_session_failed_dereg_count));
+       }
+
+       icp_ocfDrvFreeCaches();
+       icp_ocfDrvDriverId = INVALID_DRIVER_ID;
+
+       /* Shutdown the Cryptographic component */
+       lacStatus = cpaCyStopInstance(CPA_INSTANCE_HANDLE_SINGLE);
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               DPRINTK("%s(): Failed to stop instance of the "
+                       "Cryptographic component.(status == %d)\n",
+                       __FUNCTION__, lacStatus);
+       }
+
+}
+
+/* Name        : icp_ocfDrvFreeCaches
+ *
+ * Description : This function deregisters all slab caches
+ */
+static void icp_ocfDrvFreeCaches(void)
+{
+       if (atomic_read(&icp_ocfDrvIsExiting) != CPA_TRUE) {
+               atomic_set(&icp_ocfDrvIsExiting, 1);
+       }
+
+       /*Sym Zones */
+       ICP_CACHE_DESTROY(drvSessionData_zone);
+       ICP_CACHE_DESTROY(drvOpData_zone);
+
+       /*Asym zones */
+       ICP_CACHE_DESTROY(drvDH_zone);
+       ICP_CACHE_DESTROY(drvLnModExp_zone);
+       ICP_CACHE_DESTROY(drvRSADecrypt_zone);
+       ICP_CACHE_DESTROY(drvRSAPrivateKey_zone);
+       ICP_CACHE_DESTROY(drvDSARSSignKValue_zone);
+       ICP_CACHE_DESTROY(drvDSARSSign_zone);
+       ICP_CACHE_DESTROY(drvDSAVerify_zone);
+
+       /*FlatBuffer and BufferList Zones */
+       ICP_CACHE_DESTROY(drvFlatBuffer_zone);
+
+}
+
+/* Name        : icp_ocfDrvDeregRetry
+ *
+ * Description : This function will try to farm the session deregistration
+ * off to a work queue. If it fails, nothing more can be done and it
+ * returns an error
+ */
+
+int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister)
+{
+       struct icp_ocfDrvFreeLacSession *workstore = NULL;
+
+       DPRINTK("%s(): Retry - Deregistering session (%p)\n",
+               __FUNCTION__, sessionToDeregister);
+
+       /*make sure the session is not available to be allocated during this
+          process */
+       atomic_inc(&lac_session_failed_dereg_count);
+
+       /*Farm off to work queue */
+       workstore =
+           kmalloc(sizeof(struct icp_ocfDrvFreeLacSession), GFP_ATOMIC);
+       if (NULL == workstore) {
+               DPRINTK("%s(): unable to free session - no memory available "
+                       "for work queue\n", __FUNCTION__);
+               return ENOMEM;
+       }
+
+       workstore->sessionToDeregister = sessionToDeregister;
+
+       INIT_WORK(&(workstore->work), icp_ocfDrvDeferedFreeLacSessionProcess,
+                 workstore);
+       queue_work(icp_ocfDrvFreeLacSessionWorkQ, &(workstore->work));
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+
+}
+
+/* Name        : icp_ocfDrvDeferedFreeLacSessionProcess
+ *
+ * Description : This function will retry (module input parameter)
+ * 'num_dereg_retries' times to deregister any symmetric session that recieves a
+ * CPA_STATUS_RETRY message from the LAC component. This function is run in
+ * Thread context because it is called from a worker thread
+ */
+static void icp_ocfDrvDeferedFreeLacSessionProcess(void *arg)
+{
+       struct icp_ocfDrvFreeLacSession *workstore = NULL;
+       CpaCySymSessionCtx sessionToDeregister = NULL;
+       int i = 0;
+       int remaining_delay_time_in_jiffies = 0;
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+
+       workstore = (struct icp_ocfDrvFreeLacSession *)arg;
+       if (NULL == workstore) {
+               DPRINTK("%s() function called with null parameter \n",
+                       __FUNCTION__);
+               return;
+       }
+
+       sessionToDeregister = workstore->sessionToDeregister;
+       kfree(workstore);
+
+       /*if exiting, give deregistration one more blast only */
+       if (atomic_read(&icp_ocfDrvIsExiting) == CPA_TRUE) {
+               lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+                                                 sessionToDeregister);
+
+               if (lacStatus != CPA_STATUS_SUCCESS) {
+                       DPRINTK("%s() Failed to Dereg LAC session %p "
+                               "during module exit\n", __FUNCTION__,
+                               sessionToDeregister);
+                       return;
+               }
+
+               atomic_dec(&lac_session_failed_dereg_count);
+               return;
+       }
+
+       for (i = 0; i <= num_dereg_retries; i++) {
+               lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+                                                 sessionToDeregister);
+
+               if (lacStatus == CPA_STATUS_SUCCESS) {
+                       atomic_dec(&lac_session_failed_dereg_count);
+                       return;
+               }
+               if (lacStatus != CPA_STATUS_RETRY) {
+                       DPRINTK("%s() Failed to deregister session - lacStatus "
+                               " = %d", __FUNCTION__, lacStatus);
+                       break;
+               }
+
+               /*schedule_timout returns the time left for completion if this
+                  task is set to TASK_INTERRUPTIBLE */
+               remaining_delay_time_in_jiffies = dereg_retry_delay_in_jiffies;
+               while (0 > remaining_delay_time_in_jiffies) {
+                       remaining_delay_time_in_jiffies =
+                           schedule_timeout(remaining_delay_time_in_jiffies);
+               }
+
+       }
+
+       DPRINTK("%s(): Unable to deregister session\n", __FUNCTION__);
+       DPRINTK("%s(): Number of unavailable LAC sessions = %d\n", __FUNCTION__,
+               atomic_read(&lac_session_failed_dereg_count));
+}
+
+/* Name        : icp_ocfDrvPtrAndLenToFlatBuffer 
+ *
+ * Description : This function converts a "pointer and length" buffer 
+ * structure to Fredericksburg Flat Buffer (CpaFlatBuffer) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
+                               CpaFlatBuffer * pFlatBuffer)
+{
+       pFlatBuffer->pData = pData;
+       pFlatBuffer->dataLenInBytes = len;
+}
+
+/* Name        : icp_ocfDrvSingleSkBuffToFlatBuffer 
+ *
+ * Description : This function converts a single socket buffer (sk_buff)
+ * structure to a Fredericksburg Flat Buffer (CpaFlatBuffer) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+static inline void
+icp_ocfDrvSingleSkBuffToFlatBuffer(struct sk_buff *pSkb,
+                                  CpaFlatBuffer * pFlatBuffer)
+{
+       pFlatBuffer->pData = pSkb->data;
+       pFlatBuffer->dataLenInBytes = skb_headlen(pSkb);
+}
+
+/* Name        : icp_ocfDrvSkBuffToBufferList 
+ *
+ * Description : This function converts a socket buffer (sk_buff) structure to
+ * Fredericksburg Scatter/Gather (CpaBufferList) buffer format.
+ *
+ * This function assumes that the bufferlist has been allocated with the correct
+ * number of buffer arrays.
+ * 
+ */
+inline int
+icp_ocfDrvSkBuffToBufferList(struct sk_buff *pSkb, CpaBufferList * bufferList)
+{
+       CpaFlatBuffer *curFlatBuffer = NULL;
+       char *skbuffPageAddr = NULL;
+       struct sk_buff *pCurFrag = NULL;
+       struct skb_shared_info *pShInfo = NULL;
+       uint32_t page_offset = 0, i = 0;
+
+       DPRINTK("%s(): Entry Point\n", __FUNCTION__);
+
+       /*
+        * In all cases, the first skb needs to be translated to FlatBuffer.
+        * Perform a buffer translation for the first skbuff
+        */
+       curFlatBuffer = bufferList->pBuffers;
+       icp_ocfDrvSingleSkBuffToFlatBuffer(pSkb, curFlatBuffer);
+
+       /* Set the userData to point to the original sk_buff */
+       bufferList->pUserData = (void *)pSkb;
+
+       /* We now know we'll have at least one element in the SGL */
+       bufferList->numBuffers = 1;
+
+       if (0 == skb_is_nonlinear(pSkb)) {
+               /* Is a linear buffer - therefore it's a single skbuff */
+               DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_SUCCESS;
+       }
+
+       curFlatBuffer++;
+       pShInfo = skb_shinfo(pSkb);
+       if (pShInfo->frag_list != NULL && pShInfo->nr_frags != 0) {
+               EPRINTK("%s():"
+                       "Translation for a combination of frag_list "
+                       "and frags[] array not supported!\n", __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       } else if (pShInfo->frag_list != NULL) {
+               /*
+                * Non linear skbuff supported through frag_list 
+                * Perform translation for each fragment (sk_buff)
+                * in the frag_list of the first sk_buff.
+                */
+               for (pCurFrag = pShInfo->frag_list;
+                    pCurFrag != NULL; pCurFrag = pCurFrag->next) {
+                       icp_ocfDrvSingleSkBuffToFlatBuffer(pCurFrag,
+                                                          curFlatBuffer);
+                       curFlatBuffer++;
+                       bufferList->numBuffers++;
+               }
+       } else if (pShInfo->nr_frags != 0) {
+               /*
+                * Perform translation for each fragment in frags array
+                * and add to the BufferList
+                */
+               for (i = 0; i < pShInfo->nr_frags; i++) {
+                       /* Get the page address and offset of this frag */
+                       skbuffPageAddr = (char *)pShInfo->frags[i].page;
+                       page_offset = pShInfo->frags[i].page_offset;
+
+                       /* Convert a pointer and length to a flat buffer */
+                       icp_ocfDrvPtrAndLenToFlatBuffer(skbuffPageAddr +
+                                                       page_offset,
+                                                       pShInfo->frags[i].size,
+                                                       curFlatBuffer);
+                       curFlatBuffer++;
+                       bufferList->numBuffers++;
+               }
+       } else {
+               EPRINTK("%s():" "Could not recognize skbuff fragments!\n",
+                       __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+
+       DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvBufferListToSkBuff 
+ *
+ * Description : This function converts a Fredericksburg Scatter/Gather 
+ * (CpaBufferList) buffer format to socket buffer structure.
+ */
+inline int
+icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList, struct sk_buff **skb)
+{
+       DPRINTK("%s(): Entry Point\n", __FUNCTION__);
+
+       /* Retrieve the orignal skbuff */
+       *skb = (struct sk_buff *)bufferList->pUserData;
+       if (NULL == *skb) {
+               EPRINTK("%s():"
+                       "Error on converting from a BufferList. "
+                       "The BufferList does not contain an sk_buff.\n",
+                       __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+       DPRINTK("%s(): Exit Point\n", __FUNCTION__);
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvPtrAndLenToBufferList
+ *
+ * Description : This function converts a "pointer and length" buffer
+ * structure to Fredericksburg Scatter/Gather Buffer (CpaBufferList) format.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
+                               CpaBufferList * pBufferList)
+{
+       pBufferList->numBuffers = 1;
+       pBufferList->pBuffers->pData = pDataIn;
+       pBufferList->pBuffers->dataLenInBytes = length;
+}
+
+/* Name        : icp_ocfDrvBufferListToPtrAndLen
+ *
+ * Description : This function converts Fredericksburg Scatter/Gather Buffer
+ * (CpaBufferList) format to a "pointer and length" buffer structure.
+ *
+ * This function assumes that the data passed in are valid.
+ */
+inline void
+icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
+                               void **ppDataOut, uint32_t * pLength)
+{
+       *ppDataOut = pBufferList->pBuffers->pData;
+       *pLength = pBufferList->pBuffers->dataLenInBytes;
+}
+
+/* Name        : icp_ocfDrvBufferListMemInfo
+ *
+ * Description : This function will set the number of flat buffers in 
+ * bufferlist, the size of memory to allocate for the pPrivateMetaData 
+ * member of the CpaBufferList.
+ */
+int
+icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
+                           struct icp_drvBuffListInfo *buffListInfo)
+{
+       buffListInfo->numBuffers = numBuffers;
+
+       if (CPA_STATUS_SUCCESS !=
+           cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
+                                      buffListInfo->numBuffers,
+                                      &(buffListInfo->metaSize))) {
+               EPRINTK("%s() Failed to get buffer list meta size.\n",
+                       __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvGetSkBuffFrags
+ *
+ * Description : This function will determine the number of 
+ * fragments in a socket buffer(sk_buff).
+ */
+inline uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff * pSkb)
+{
+       uint16_t numFrags = 0;
+       struct sk_buff *pCurFrag = NULL;
+       struct skb_shared_info *pShInfo = NULL;
+
+       if (NULL == pSkb)
+               return 0;
+
+       numFrags = 1;
+       if (0 == skb_is_nonlinear(pSkb)) {
+               /* Linear buffer - it's a single skbuff */
+               return numFrags;
+       }
+
+       pShInfo = skb_shinfo(pSkb);
+       if (NULL != pShInfo->frag_list && 0 != pShInfo->nr_frags) {
+               EPRINTK("%s(): Combination of frag_list "
+                       "and frags[] array not supported!\n", __FUNCTION__);
+               return 0;
+       } else if (0 != pShInfo->nr_frags) {
+               numFrags += pShInfo->nr_frags;
+               return numFrags;
+       } else if (NULL != pShInfo->frag_list) {
+               for (pCurFrag = pShInfo->frag_list;
+                    pCurFrag != NULL; pCurFrag = pCurFrag->next) {
+                       numFrags++;
+               }
+               return numFrags;
+       } else {
+               return 0;
+       }
+}
+
+/* Name        : icp_ocfDrvFreeFlatBuffer
+ *
+ * Description : This function will deallocate flat buffer.
+ */
+inline void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer)
+{
+       if (pFlatBuffer != NULL) {
+               memset(pFlatBuffer, 0, sizeof(CpaFlatBuffer));
+               kmem_cache_free(drvFlatBuffer_zone, pFlatBuffer);
+       }
+}
+
+/* Name        : icp_ocfDrvAllocMetaData
+ *
+ * Description : This function will allocate memory for the
+ * pPrivateMetaData member of CpaBufferList.
+ */
+inline int
+icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList,
+        const struct icp_drvOpData *pOpData)
+{
+       Cpa32U metaSize = 0;
+
+       if (pBufferList->numBuffers <= ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS){
+           void *pOpDataStartAddr = (void *)pOpData;
+
+           if (0 == defBuffListInfo.metaSize) {
+                       pBufferList->pPrivateMetaData = NULL;
+                       return ICP_OCF_DRV_STATUS_SUCCESS;
+               }
+               /*
+                * The meta data allocation has been included as part of the 
+                * op data.  It has been pre-allocated in memory just after the
+                * icp_drvOpData structure.
+                */
+               pBufferList->pPrivateMetaData = pOpDataStartAddr +
+                       sizeof(struct icp_drvOpData);
+       } else {
+               if (CPA_STATUS_SUCCESS !=
+                   cpaCyBufferListGetMetaSize(CPA_INSTANCE_HANDLE_SINGLE,
+                                              pBufferList->numBuffers,
+                                              &metaSize)) {
+                       EPRINTK("%s() Failed to get buffer list meta size.\n",
+                               __FUNCTION__);
+                       return ICP_OCF_DRV_STATUS_FAIL;
+               }
+
+               if (0 == metaSize) {
+                       pBufferList->pPrivateMetaData = NULL;
+                       return ICP_OCF_DRV_STATUS_SUCCESS;
+               }
+
+               pBufferList->pPrivateMetaData = kmalloc(metaSize, GFP_ATOMIC);
+       }
+       if (NULL == pBufferList->pPrivateMetaData) {
+               EPRINTK("%s() Failed to allocate pPrivateMetaData.\n",
+                       __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvFreeMetaData
+ *
+ * Description : This function will deallocate pPrivateMetaData memory.
+ */
+inline void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList)
+{
+       if (NULL == pBufferList->pPrivateMetaData) {
+               return;
+       }
+
+       /*
+        * Only free the meta data if the BufferList has more than 
+        * ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS number of buffers.
+        * Otherwise, the meta data shall be freed when the icp_drvOpData is
+        * freed.
+        */
+       if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < pBufferList->numBuffers){
+               kfree(pBufferList->pPrivateMetaData);
+       }
+}
+
+module_init(icp_ocfDrvInit);
+module_exit(icp_ocfDrvExit);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Intel");
+MODULE_DESCRIPTION("OCF Driver for Intel Quick Assist crypto acceleration");
--- /dev/null
+++ b/crypto/ocf/ep80579/icp_ocf.h
@@ -0,0 +1,363 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+
+/*
+ * OCF drv driver header file for the Intel ICP processor.
+ */
+
+#ifndef ICP_OCF_H
+#define ICP_OCF_H
+
+#include <linux/crypto.h>
+#include <linux/delay.h>
+#include <linux/skbuff.h>
+
+#include "cryptodev.h"
+#include "uio.h"
+
+#include "cpa.h"
+#include "cpa_cy_im.h"
+#include "cpa_cy_sym.h"
+#include "cpa_cy_rand.h"
+#include "cpa_cy_dh.h"
+#include "cpa_cy_rsa.h"
+#include "cpa_cy_ln.h"
+#include "cpa_cy_common.h"
+#include "cpa_cy_dsa.h"
+
+#define NUM_BITS_IN_BYTE (8)
+#define NUM_BITS_IN_BYTE_MINUS_ONE (NUM_BITS_IN_BYTE -1)
+#define INVALID_DRIVER_ID (-1)
+#define RETURN_RAND_NUM_GEN_FAILED (-1)
+
+/*This is define means only one operation can be chained to another
+(resulting in one chain of two operations)*/
+#define MAX_NUM_OF_CHAINED_OPS (1)
+/*This is the max block cipher initialisation vector*/
+#define MAX_IV_LEN_IN_BYTES (20)
+/*This is used to check whether the OCF to this driver session limit has
+  been disabled*/
+#define NO_OCF_TO_DRV_MAX_SESSIONS             (0)
+
+/*OCF values mapped here*/
+#define ICP_SHA1_DIGEST_SIZE_IN_BYTES          (SHA1_HASH_LEN)
+#define ICP_SHA256_DIGEST_SIZE_IN_BYTES        (SHA2_256_HASH_LEN)
+#define ICP_SHA384_DIGEST_SIZE_IN_BYTES        (SHA2_384_HASH_LEN)
+#define ICP_SHA512_DIGEST_SIZE_IN_BYTES        (SHA2_512_HASH_LEN)
+#define ICP_MD5_DIGEST_SIZE_IN_BYTES           (MD5_HASH_LEN)
+#define ARC4_COUNTER_LEN                       (ARC4_BLOCK_LEN)
+
+#define OCF_REGISTRATION_STATUS_SUCCESS        (0)
+#define OCF_ZERO_FUNCTIONALITY_REGISTERED      (0)
+#define ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR    (0)
+#define ICP_OCF_DRV_STATUS_SUCCESS             (0)
+#define ICP_OCF_DRV_STATUS_FAIL                (1)
+
+/*Turn on/off debug options*/
+#define ICP_OCF_PRINT_DEBUG_MESSAGES           (0)
+#define ICP_OCF_PRINT_KERN_ALERT               (1)
+#define ICP_OCF_PRINT_KERN_ERRS                        (1)
+
+/*DSA Prime Q size in bytes (as defined in the standard) */
+#define DSA_RS_SIGN_PRIMEQ_SIZE_IN_BYTES       (20)
+
+/*MACRO DEFINITIONS*/
+
+#define BITS_TO_BYTES(bytes, bits)                                     \
+       bytes = (bits + NUM_BITS_IN_BYTE_MINUS_ONE) / NUM_BITS_IN_BYTE
+
+#define ICP_CACHE_CREATE(cache_ID, cache_name)                                 \
+       kmem_cache_create(cache_ID, sizeof(cache_name),0,               \
+               SLAB_HWCACHE_ALIGN, NULL, NULL);
+
+#define ICP_CACHE_NULL_CHECK(slab_zone)                                        \
+{                                                                      \
+       if(NULL == slab_zone){                                          \
+               icp_ocfDrvFreeCaches();                                 \
+               EPRINTK("%s() line %d: Not enough memory!\n",           \
+                       __FUNCTION__, __LINE__);                        \
+               return ENOMEM;                                          \
+       }                                                               \
+}
+
+#define ICP_CACHE_DESTROY(slab_zone)                                   \
+{                                                                       \
+        if(NULL != slab_zone){                                         \
+                kmem_cache_destroy(slab_zone);                         \
+                slab_zone = NULL;                                      \
+        }                                                              \
+}
+
+#define ICP_REGISTER_SYM_FUNCTIONALITY_WITH_OCF(alg)                   \
+{                                                                      \
+       if(OCF_REGISTRATION_STATUS_SUCCESS ==                           \
+               crypto_register(icp_ocfDrvDriverId,                     \
+                                   alg,                                \
+                                   0,                                  \
+                                   0)) {                               \
+               ocfStatus++;                                            \
+       }                                                               \
+}
+
+#define ICP_REGISTER_ASYM_FUNCTIONALITY_WITH_OCF(alg)                  \
+{                                                                      \
+       if(OCF_REGISTRATION_STATUS_SUCCESS ==                           \
+               crypto_kregister(icp_ocfDrvDriverId,                    \
+                                     alg,                              \
+                                     0)){                              \
+               ocfStatus++;                                            \
+       }                                                               \
+}
+
+#if ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+#define DPRINTK(args...)      \
+{                            \
+                printk(args); \
+}
+
+#else                          //ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+
+#define DPRINTK(args...)
+
+#endif                         //ICP_OCF_PRINT_DEBUG_MESSAGES == 1
+
+#if ICP_OCF_PRINT_KERN_ALERT == 1
+#define APRINTK(args...)                                               \
+{                                                                      \
+       printk(KERN_ALERT args);                                                \
+}
+
+#else                          //ICP_OCF_PRINT_KERN_ALERT == 1
+
+#define APRINTK(args...)
+
+#endif                         //ICP_OCF_PRINT_KERN_ALERT == 1
+
+#if ICP_OCF_PRINT_KERN_ERRS == 1
+#define EPRINTK(args...)      \
+{                            \
+       printk(KERN_ERR args); \
+}
+
+#else                          //ICP_OCF_PRINT_KERN_ERRS == 1
+
+#define EPRINTK(args...)
+
+#endif                         //ICP_OCF_PRINT_KERN_ERRS == 1
+
+#define IPRINTK(args...)      \
+{                            \
+      printk(KERN_INFO args); \
+}
+
+/*END OF MACRO DEFINITIONS*/
+
+typedef enum {
+       ICP_OCF_DRV_ALG_CIPHER = 0,
+       ICP_OCF_DRV_ALG_HASH
+} icp_ocf_drv_alg_type_t;
+
+/* These are all defined in icp_common.c */
+extern atomic_t lac_session_failed_dereg_count;
+extern atomic_t icp_ocfDrvIsExiting;
+extern atomic_t num_ocf_to_drv_registered_sessions;
+
+/*These are use inputs used in icp_sym.c and icp_common.c
+  They are instantiated in icp_common.c*/
+extern int max_sessions;
+
+extern int32_t icp_ocfDrvDriverId;
+extern struct list_head icp_ocfDrvGlobalSymListHead;
+extern struct list_head icp_ocfDrvGlobalSymListHead_FreeMemList;
+extern struct workqueue_struct *icp_ocfDrvFreeLacSessionWorkQ;
+extern spinlock_t icp_ocfDrvSymSessInfoListSpinlock;
+extern rwlock_t icp_kmem_cache_destroy_alloc_lock;
+
+/*Slab zones for symettric functionality, instantiated in icp_common.c*/
+extern struct kmem_cache *drvSessionData_zone;
+extern struct kmem_cache *drvOpData_zone;
+
+/*Slabs zones for asymettric functionality, instantiated in icp_common.c*/
+extern struct kmem_cache *drvDH_zone;
+extern struct kmem_cache *drvLnModExp_zone;
+extern struct kmem_cache *drvRSADecrypt_zone;
+extern struct kmem_cache *drvRSAPrivateKey_zone;
+extern struct kmem_cache *drvDSARSSign_zone;
+extern struct kmem_cache *drvDSARSSignKValue_zone;
+extern struct kmem_cache *drvDSAVerify_zone;
+
+/*Slab zones for flatbuffers and bufferlist*/
+extern struct kmem_cache *drvFlatBuffer_zone;
+
+#define ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS     (16)
+
+struct icp_drvBuffListInfo {
+       Cpa16U numBuffers;
+       Cpa32U metaSize;
+       Cpa32U metaOffset;
+       Cpa32U buffListSize;
+};
+extern struct icp_drvBuffListInfo defBuffListInfo;
+
+/*
+* This struct is used to keep a reference to the relevant node in the list
+* of sessionData structs, to the buffer type required by OCF and to the OCF
+* provided crp struct that needs to be returned. All this info is needed in
+* the callback function.
+*
+* IV can sometimes be stored in non-contiguous memory (e.g. skbuff
+* linked/frag list, therefore a contiguous memory space for the IV data must be
+* created and passed to LAC
+*
+*/
+struct icp_drvOpData {
+       CpaCySymOpData lacOpData;
+       uint32_t digestSizeInBytes;
+       struct cryptop *crp;
+       uint8_t bufferType;
+       uint8_t ivData[MAX_IV_LEN_IN_BYTES];
+       uint16_t numBufferListArray;
+       CpaBufferList srcBuffer;
+       CpaFlatBuffer bufferListArray[ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS];
+       CpaBoolean verifyResult;
+};
+/*Values used to derisk chances of performs being called against
+deregistered sessions (for which the slab page has been reclaimed)
+This is not a fix - since page frames are reclaimed from a slab, one cannot
+rely on that memory not being re-used by another app.*/
+typedef enum {
+       ICP_SESSION_INITIALISED = 0x5C5C5C,
+       ICP_SESSION_RUNNING = 0x005C00,
+       ICP_SESSION_DEREGISTERED = 0xC5C5C5
+} usage_derisk;
+
+/*
+This is the OCF<->OCF_DRV session object:
+
+1.The first member is a listNode. These session objects are added to a linked
+  list in order to make it easier to remove them all at session exit time.
+2.The second member is used to give the session object state and derisk the
+  possibility of OCF batch calls executing against a deregistered session (as
+  described above).
+3.The third member is a LAC<->OCF_DRV session handle (initialised with the first
+  perform request for that session).
+4.The fourth is the LAC session context. All the parameters for this structure
+  are only known when the first perform request for this session occurs. That is
+  why the OCF Tolapai Driver only registers a new LAC session at perform time
+*/
+struct icp_drvSessionData {
+       struct list_head listNode;
+       usage_derisk inUse;
+       CpaCySymSessionCtx sessHandle;
+       CpaCySymSessionSetupData lacSessCtx;
+};
+
+/* This struct is required for deferred session
+ deregistration as a work queue function can
+ only have one argument*/
+struct icp_ocfDrvFreeLacSession {
+       CpaCySymSessionCtx sessionToDeregister;
+       struct work_struct work;
+};
+
+int icp_ocfDrvNewSession(device_t dev, uint32_t * sild, struct cryptoini *cri);
+
+int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid);
+
+int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint);
+
+int icp_ocfDrvPkeProcess(device_t dev, struct cryptkop *krp, int hint);
+
+int icp_ocfDrvReadRandom(void *arg, uint32_t * buf, int maxwords);
+
+int icp_ocfDrvDeregRetry(CpaCySymSessionCtx sessionToDeregister);
+
+int icp_ocfDrvSkBuffToBufferList(struct sk_buff *skb,
+                                CpaBufferList * bufferList);
+
+int icp_ocfDrvBufferListToSkBuff(CpaBufferList * bufferList,
+                                struct sk_buff **skb);
+
+void icp_ocfDrvPtrAndLenToFlatBuffer(void *pData, uint32_t len,
+                                    CpaFlatBuffer * pFlatBuffer);
+
+void icp_ocfDrvPtrAndLenToBufferList(void *pDataIn, uint32_t length,
+                                    CpaBufferList * pBufferList);
+
+void icp_ocfDrvBufferListToPtrAndLen(CpaBufferList * pBufferList,
+                                    void **ppDataOut, uint32_t * pLength);
+
+int icp_ocfDrvBufferListMemInfo(uint16_t numBuffers,
+                               struct icp_drvBuffListInfo *buffListInfo);
+
+uint16_t icp_ocfDrvGetSkBuffFrags(struct sk_buff *pSkb);
+
+void icp_ocfDrvFreeFlatBuffer(CpaFlatBuffer * pFlatBuffer);
+
+int icp_ocfDrvAllocMetaData(CpaBufferList * pBufferList, 
+                const struct icp_drvOpData *pOpData);
+
+void icp_ocfDrvFreeMetaData(CpaBufferList * pBufferList);
+
+#endif
+/* ICP_OCF_H */
--- /dev/null
+++ b/crypto/ocf/ep80579/icp_sym.c
@@ -0,0 +1,1382 @@
+/***************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or 
+ *   redistributing this file, you may do so under either license.
+ * 
+ *   GPL LICENSE SUMMARY
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ * 
+ *   This program is free software; you can redistribute it and/or modify 
+ *   it under the terms of version 2 of the GNU General Public License as
+ *   published by the Free Software Foundation.
+ * 
+ *   This program is distributed in the hope that it will be useful, but 
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of 
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU 
+ *   General Public License for more details.
+ * 
+ *   You should have received a copy of the GNU General Public License 
+ *   along with this program; if not, write to the Free Software 
+ *   Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *   The full GNU General Public License is included in this distribution 
+ *   in the file called LICENSE.GPL.
+ * 
+ *   Contact Information:
+ *   Intel Corporation
+ * 
+ *   BSD LICENSE 
+ * 
+ *   Copyright(c) 2007,2008 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ * 
+ *   Redistribution and use in source and binary forms, with or without 
+ *   modification, are permitted provided that the following conditions 
+ *   are met:
+ * 
+ *     * Redistributions of source code must retain the above copyright 
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright 
+ *       notice, this list of conditions and the following disclaimer in 
+ *       the documentation and/or other materials provided with the 
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its 
+ *       contributors may be used to endorse or promote products derived 
+ *       from this software without specific prior written permission.
+ * 
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ * 
+ *  version: Security.L.1.0.130
+ *
+ ***************************************************************************/
+/*
+ * An OCF module that uses the API for Intel® QuickAssist Technology to do the
+ * cryptography.
+ *
+ * This driver requires the ICP Access Library that is available from Intel in
+ * order to operate.
+ */
+
+#include "icp_ocf.h"
+
+/*This is the call back function for all symmetric cryptographic processes.
+  Its main functionality is to free driver crypto operation structure and to 
+  call back to OCF*/
+static void
+icp_ocfDrvSymCallBack(void *callbackTag,
+                     CpaStatus status,
+                     const CpaCySymOp operationType,
+                     void *pOpData,
+                     CpaBufferList * pDstBuffer, CpaBoolean verifyResult);
+
+/*This function is used to extract crypto processing information from the OCF
+  inputs, so as that it may be passed onto LAC*/
+static int
+icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
+                          struct cryptodesc *crp_desc);
+
+/*This function checks whether the crp_desc argument pertains to a digest or a
+  cipher operation*/
+static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc);
+
+/*This function copies all the passed in session context information and stores
+  it in a LAC context structure*/
+static int
+icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
+                        CpaCySymSessionSetupData * lacSessCtx);
+
+/*This top level function is used to find a pointer to where a digest is 
+  stored/needs to be inserted. */
+static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
+                                           struct cryptodesc *crp_desc);
+
+/*This function is called when a digest pointer has to be found within a
+  SKBUFF.*/
+static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
+                                                        *drvOpData,
+                                                        int offsetInBytes,
+                                                        uint32_t
+                                                        digestSizeInBytes);
+
+/*The following two functions are called if the SKBUFF digest pointer is not 
+  positioned in the linear portion of the buffer (i.e. it is in a linked SKBUFF
+   or page fragment).*/
+/*This function takes care of the page fragment case.*/
+static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
+                                                      struct skb_shared_info
+                                                      *skb_shared,
+                                                      int offsetInBytes,
+                                                      uint32_t
+                                                      digestSizeInBytes);
+
+/*This function takes care of the linked list case.*/
+static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
+                                                       struct skb_shared_info
+                                                       *skb_shared,
+                                                       int offsetInBytes,
+                                                       uint32_t
+                                                       digestSizeInBytes);
+
+/*This function is used to free an OCF->OCF_DRV session object*/
+static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData);
+
+/*max IOV buffs supported in a UIO structure*/
+#define NUM_IOV_SUPPORTED              (1)
+
+/* Name        : icp_ocfDrvSymCallBack
+ *
+ * Description : When this function returns it signifies that the LAC
+ * component has completed the relevant symmetric operation. 
+ *
+ * Notes : The callbackTag is a pointer to an icp_drvOpData. This memory
+ * object was passed to LAC for the cryptographic processing and contains all
+ * the relevant information for cleaning up buffer handles etc. so that the
+ * OCF Tolapai Driver portion of this crypto operation can be fully completed.
+ */
+static void
+icp_ocfDrvSymCallBack(void *callbackTag,
+                     CpaStatus status,
+                     const CpaCySymOp operationType,
+                     void *pOpData,
+                     CpaBufferList * pDstBuffer, CpaBoolean verifyResult)
+{
+       struct cryptop *crp = NULL;
+       struct icp_drvOpData *temp_drvOpData =
+           (struct icp_drvOpData *)callbackTag;
+       uint64_t *tempBasePtr = NULL;
+       uint32_t tempLen = 0;
+
+       if (NULL == temp_drvOpData) {
+               DPRINTK("%s(): The callback from the LAC component"
+                       " has failed due to Null userOpaque data"
+                       "(status == %d).\n", __FUNCTION__, status);
+               DPRINTK("%s(): Unable to call OCF back! \n", __FUNCTION__);
+               return;
+       }
+
+       crp = temp_drvOpData->crp;
+       crp->crp_etype = ICP_OCF_DRV_NO_CRYPTO_PROCESS_ERROR;
+
+       if (NULL == pOpData) {
+               DPRINTK("%s(): The callback from the LAC component"
+                       " has failed due to Null Symmetric Op data"
+                       "(status == %d).\n", __FUNCTION__, status);
+               crp->crp_etype = ECANCELED;
+               crypto_done(crp);
+               return;
+       }
+
+       if (NULL == pDstBuffer) {
+               DPRINTK("%s(): The callback from the LAC component"
+                       " has failed due to Null Dst Bufferlist data"
+                       "(status == %d).\n", __FUNCTION__, status);
+               crp->crp_etype = ECANCELED;
+               crypto_done(crp);
+               return;
+       }
+
+       if (CPA_STATUS_SUCCESS == status) {
+
+               if (temp_drvOpData->bufferType == CRYPTO_F_SKBUF) {
+                       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+                           icp_ocfDrvBufferListToSkBuff(pDstBuffer,
+                                                        (struct sk_buff **)
+                                                        &(crp->crp_buf))) {
+                               EPRINTK("%s(): BufferList to SkBuff "
+                                       "conversion error.\n", __FUNCTION__);
+                               crp->crp_etype = EPERM;
+                       }
+               } else {
+                       icp_ocfDrvBufferListToPtrAndLen(pDstBuffer,
+                                                       (void **)&tempBasePtr,
+                                                       &tempLen);
+                       crp->crp_olen = (int)tempLen;
+               }
+
+       } else {
+               DPRINTK("%s(): The callback from the LAC component has failed"
+                       "(status == %d).\n", __FUNCTION__, status);
+
+               crp->crp_etype = ECANCELED;
+       }
+
+       if (temp_drvOpData->numBufferListArray >
+           ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
+               kfree(pDstBuffer->pBuffers);
+       }
+       icp_ocfDrvFreeMetaData(pDstBuffer);
+       kmem_cache_free(drvOpData_zone, temp_drvOpData);
+
+       /* Invoke the OCF callback function */
+       crypto_done(crp);
+
+       return;
+}
+
+/* Name        : icp_ocfDrvNewSession 
+ *
+ * Description : This function will create a new Driver<->OCF session
+ *
+ * Notes : LAC session registration happens during the first perform call.
+ * That is the first time we know all information about a given session.
+ */
+int icp_ocfDrvNewSession(device_t dev, uint32_t * sid, struct cryptoini *cri)
+{
+       struct icp_drvSessionData *sessionData = NULL;
+       uint32_t delete_session = 0;
+
+       /* The SID passed in should be our driver ID. We can return the     */
+       /* local ID (LID) which is a unique identifier which we can use     */
+       /* to differentiate between the encrypt/decrypt LAC session handles */
+       if (NULL == sid) {
+               EPRINTK("%s(): Invalid input parameters - NULL sid.\n",
+                       __FUNCTION__);
+               return EINVAL;
+       }
+
+       if (NULL == cri) {
+               EPRINTK("%s(): Invalid input parameters - NULL cryptoini.\n",
+                       __FUNCTION__);
+               return EINVAL;
+       }
+
+       if (icp_ocfDrvDriverId != *sid) {
+               EPRINTK("%s(): Invalid input parameters - bad driver ID\n",
+                       __FUNCTION__);
+               EPRINTK("\t sid = 0x08%p \n \t cri = 0x08%p \n", sid, cri);
+               return EINVAL;
+       }
+
+       sessionData = kmem_cache_zalloc(drvSessionData_zone, GFP_ATOMIC);
+       if (NULL == sessionData) {
+               DPRINTK("%s():No memory for Session Data\n", __FUNCTION__);
+               return ENOMEM;
+       }
+
+       /*ENTER CRITICAL SECTION */
+       spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+       /*put this check in the spinlock so no new sessions can be added to the
+          linked list when we are exiting */
+       if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+               delete_session++;
+
+       } else if (NO_OCF_TO_DRV_MAX_SESSIONS != max_sessions) {
+               if (atomic_read(&num_ocf_to_drv_registered_sessions) >=
+                   (max_sessions -
+                    atomic_read(&lac_session_failed_dereg_count))) {
+                       delete_session++;
+               } else {
+                       atomic_inc(&num_ocf_to_drv_registered_sessions);
+                       /* Add to session data linked list */
+                       list_add(&(sessionData->listNode),
+                                &icp_ocfDrvGlobalSymListHead);
+               }
+
+       } else if (NO_OCF_TO_DRV_MAX_SESSIONS == max_sessions) {
+               list_add(&(sessionData->listNode),
+                        &icp_ocfDrvGlobalSymListHead);
+       }
+
+       sessionData->inUse = ICP_SESSION_INITIALISED;
+
+       /*EXIT CRITICAL SECTION */
+       spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+       if (delete_session) {
+               DPRINTK("%s():No Session handles available\n", __FUNCTION__);
+               kmem_cache_free(drvSessionData_zone, sessionData);
+               return EPERM;
+       }
+
+       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+           icp_ocfDrvAlgorithmSetup(cri, &(sessionData->lacSessCtx))) {
+               DPRINTK("%s():algorithm not supported\n", __FUNCTION__);
+               icp_ocfDrvFreeOCFSession(sessionData);
+               return EINVAL;
+       }
+
+       if (cri->cri_next) {
+               if (cri->cri_next->cri_next != NULL) {
+                       DPRINTK("%s():only two chained algorithms supported\n",
+                               __FUNCTION__);
+                       icp_ocfDrvFreeOCFSession(sessionData);
+                       return EPERM;
+               }
+
+               if (ICP_OCF_DRV_STATUS_SUCCESS !=
+                   icp_ocfDrvAlgorithmSetup(cri->cri_next,
+                                            &(sessionData->lacSessCtx))) {
+                       DPRINTK("%s():second algorithm not supported\n",
+                               __FUNCTION__);
+                       icp_ocfDrvFreeOCFSession(sessionData);
+                       return EINVAL;
+               }
+
+               sessionData->lacSessCtx.symOperation =
+                   CPA_CY_SYM_OP_ALGORITHM_CHAINING;
+       }
+
+       *sid = (uint32_t) sessionData;
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvAlgorithmSetup
+ *
+ * Description : This function builds the session context data from the
+ * information supplied through OCF. Algorithm chain order and whether the
+ * session is Encrypt/Decrypt can only be found out at perform time however, so
+ * the session is registered with LAC at that time.
+ */
+static int
+icp_ocfDrvAlgorithmSetup(struct cryptoini *cri,
+                        CpaCySymSessionSetupData * lacSessCtx)
+{
+
+       lacSessCtx->sessionPriority = CPA_CY_PRIORITY_NORMAL;
+
+       switch (cri->cri_alg) {
+
+       case CRYPTO_NULL_CBC:
+               DPRINTK("%s(): NULL CBC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+               lacSessCtx->cipherSetupData.cipherAlgorithm =
+                   CPA_CY_SYM_CIPHER_NULL;
+               lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+               break;
+
+       case CRYPTO_DES_CBC:
+               DPRINTK("%s(): DES CBC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+               lacSessCtx->cipherSetupData.cipherAlgorithm =
+                   CPA_CY_SYM_CIPHER_DES_CBC;
+               lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+               break;
+
+       case CRYPTO_3DES_CBC:
+               DPRINTK("%s(): 3DES CBC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+               lacSessCtx->cipherSetupData.cipherAlgorithm =
+                   CPA_CY_SYM_CIPHER_3DES_CBC;
+               lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+               break;
+
+       case CRYPTO_AES_CBC:
+               DPRINTK("%s(): AES CBC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+               lacSessCtx->cipherSetupData.cipherAlgorithm =
+                   CPA_CY_SYM_CIPHER_AES_CBC;
+               lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+               break;
+
+       case CRYPTO_ARC4:
+               DPRINTK("%s(): ARC4\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_CIPHER;
+               lacSessCtx->cipherSetupData.cipherAlgorithm =
+                   CPA_CY_SYM_CIPHER_ARC4;
+               lacSessCtx->cipherSetupData.cipherKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->cipherSetupData.pCipherKey = cri->cri_key;
+               break;
+
+       case CRYPTO_SHA1:
+               DPRINTK("%s(): SHA1\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
+
+               break;
+
+       case CRYPTO_SHA1_HMAC:
+               DPRINTK("%s(): SHA1_HMAC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_SHA1;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA1_DIGEST_SIZE_IN_BYTES);
+               lacSessCtx->hashSetupData.authModeSetupData.authKey =
+                   cri->cri_key;
+               lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+               break;
+
+       case CRYPTO_SHA2_256:
+               DPRINTK("%s(): SHA256\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA256;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
+
+               break;
+
+       case CRYPTO_SHA2_256_HMAC:
+               DPRINTK("%s(): SHA256_HMAC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA256;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA256_DIGEST_SIZE_IN_BYTES);
+               lacSessCtx->hashSetupData.authModeSetupData.authKey =
+                   cri->cri_key;
+               lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+               break;
+
+       case CRYPTO_SHA2_384:
+               DPRINTK("%s(): SHA384\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA384;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
+
+               break;
+
+       case CRYPTO_SHA2_384_HMAC:
+               DPRINTK("%s(): SHA384_HMAC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA384;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA384_DIGEST_SIZE_IN_BYTES);
+               lacSessCtx->hashSetupData.authModeSetupData.authKey =
+                   cri->cri_key;
+               lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+               break;
+
+       case CRYPTO_SHA2_512:
+               DPRINTK("%s(): SHA512\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA512;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
+
+               break;
+
+       case CRYPTO_SHA2_512_HMAC:
+               DPRINTK("%s(): SHA512_HMAC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm =
+                   CPA_CY_SYM_HASH_SHA512;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_SHA512_DIGEST_SIZE_IN_BYTES);
+               lacSessCtx->hashSetupData.authModeSetupData.authKey =
+                   cri->cri_key;
+               lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+               break;
+
+       case CRYPTO_MD5:
+               DPRINTK("%s(): MD5\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_PLAIN;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
+
+               break;
+
+       case CRYPTO_MD5_HMAC:
+               DPRINTK("%s(): MD5_HMAC\n", __FUNCTION__);
+               lacSessCtx->symOperation = CPA_CY_SYM_OP_HASH;
+               lacSessCtx->hashSetupData.hashAlgorithm = CPA_CY_SYM_HASH_MD5;
+               lacSessCtx->hashSetupData.hashMode = CPA_CY_SYM_HASH_MODE_AUTH;
+               lacSessCtx->hashSetupData.digestResultLenInBytes =
+                   (cri->cri_mlen ?
+                    cri->cri_mlen : ICP_MD5_DIGEST_SIZE_IN_BYTES);
+               lacSessCtx->hashSetupData.authModeSetupData.authKey =
+                   cri->cri_key;
+               lacSessCtx->hashSetupData.authModeSetupData.authKeyLenInBytes =
+                   cri->cri_klen / NUM_BITS_IN_BYTE;
+               lacSessCtx->hashSetupData.authModeSetupData.aadLenInBytes = 0;
+
+               break;
+
+       default:
+               DPRINTK("%s(): ALG Setup FAIL\n", __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvFreeOCFSession
+ *
+ * Description : This function deletes all existing Session data representing
+ * the Cryptographic session established between OCF and this driver. This
+ * also includes freeing the memory allocated for the session context. The
+ * session object is also removed from the session linked list.
+ */
+static void icp_ocfDrvFreeOCFSession(struct icp_drvSessionData *sessionData)
+{
+
+       sessionData->inUse = ICP_SESSION_DEREGISTERED;
+
+       /*ENTER CRITICAL SECTION */
+       spin_lock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+       if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+               /*If the Driver is exiting, allow that process to
+                  handle any deletions */
+               /*EXIT CRITICAL SECTION */
+               spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+               return;
+       }
+
+       atomic_dec(&num_ocf_to_drv_registered_sessions);
+
+       list_del(&(sessionData->listNode));
+
+       /*EXIT CRITICAL SECTION */
+       spin_unlock_bh(&icp_ocfDrvSymSessInfoListSpinlock);
+
+       if (NULL != sessionData->sessHandle) {
+               kfree(sessionData->sessHandle);
+       }
+       kmem_cache_free(drvSessionData_zone, sessionData);
+}
+
+/* Name        : icp_ocfDrvFreeLACSession
+ *
+ * Description : This attempts to deregister a LAC session. If it fails, the
+ * deregistation retry function is called.
+ */
+int icp_ocfDrvFreeLACSession(device_t dev, uint64_t sid)
+{
+       CpaCySymSessionCtx sessionToDeregister = NULL;
+       struct icp_drvSessionData *sessionData = NULL;
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       int retval = 0;
+
+       sessionData = (struct icp_drvSessionData *)CRYPTO_SESID2LID(sid);
+       if (NULL == sessionData) {
+               EPRINTK("%s(): OCF Free session called with Null Session ID.\n",
+                       __FUNCTION__);
+               return EINVAL;
+       }
+
+       sessionToDeregister = sessionData->sessHandle;
+
+       if (ICP_SESSION_INITIALISED == sessionData->inUse) {
+               DPRINTK("%s() Session not registered with LAC\n", __FUNCTION__);
+       } else if (NULL == sessionData->sessHandle) {
+               EPRINTK
+                   ("%s(): OCF Free session called with Null Session Handle.\n",
+                    __FUNCTION__);
+               return EINVAL;
+       } else {
+               lacStatus = cpaCySymRemoveSession(CPA_INSTANCE_HANDLE_SINGLE,
+                                                 sessionToDeregister);
+               if (CPA_STATUS_RETRY == lacStatus) {
+                       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+                           icp_ocfDrvDeregRetry(&sessionToDeregister)) {
+                               /* the retry function increments the 
+                                  dereg failed count */
+                               DPRINTK("%s(): LAC failed to deregister the "
+                                       "session. (localSessionId= %p)\n",
+                                       __FUNCTION__, sessionToDeregister);
+                               retval = EPERM;
+                       }
+
+               } else if (CPA_STATUS_SUCCESS != lacStatus) {
+                       DPRINTK("%s(): LAC failed to deregister the session. "
+                               "localSessionId= %p, lacStatus = %d\n",
+                               __FUNCTION__, sessionToDeregister, lacStatus);
+                       atomic_inc(&lac_session_failed_dereg_count);
+                       retval = EPERM;
+               }
+       }
+
+       icp_ocfDrvFreeOCFSession(sessionData);
+       return retval;
+
+}
+
+/* Name        : icp_ocfDrvAlgCheck 
+ *
+ * Description : This function checks whether the cryptodesc argument pertains
+ * to a sym or hash function
+ */
+static int icp_ocfDrvAlgCheck(struct cryptodesc *crp_desc)
+{
+
+       if (crp_desc->crd_alg == CRYPTO_3DES_CBC ||
+           crp_desc->crd_alg == CRYPTO_AES_CBC ||
+           crp_desc->crd_alg == CRYPTO_DES_CBC ||
+           crp_desc->crd_alg == CRYPTO_NULL_CBC ||
+           crp_desc->crd_alg == CRYPTO_ARC4) {
+               return ICP_OCF_DRV_ALG_CIPHER;
+       }
+
+       return ICP_OCF_DRV_ALG_HASH;
+}
+
+/* Name        : icp_ocfDrvSymProcess 
+ *
+ * Description : This function will map symmetric functionality calls from OCF
+ * to the LAC API. It will also allocate memory to store the session context.
+ * 
+ * Notes: If it is the first perform call for a given session, then a LAC
+ * session is registered. After the session is registered, no checks as
+ * to whether session paramaters have changed (e.g. alg chain order) are
+ * done.
+ */
+int icp_ocfDrvSymProcess(device_t dev, struct cryptop *crp, int hint)
+{
+       struct icp_drvSessionData *sessionData = NULL;
+       struct icp_drvOpData *drvOpData = NULL;
+       CpaStatus lacStatus = CPA_STATUS_SUCCESS;
+       Cpa32U sessionCtxSizeInBytes = 0;
+       uint16_t numBufferListArray = 0;
+
+       if (NULL == crp) {
+               DPRINTK("%s(): Invalid input parameters, cryptop is NULL\n",
+                       __FUNCTION__);
+               return EINVAL;
+       }
+
+       if (NULL == crp->crp_desc) {
+               DPRINTK("%s(): Invalid input parameters, no crp_desc attached "
+                       "to crp\n", __FUNCTION__);
+               crp->crp_etype = EINVAL;
+               return EINVAL;
+       }
+
+       if (NULL == crp->crp_buf) {
+               DPRINTK("%s(): Invalid input parameters, no buffer attached "
+                       "to crp\n", __FUNCTION__);
+               crp->crp_etype = EINVAL;
+               return EINVAL;
+       }
+
+       if (CPA_TRUE == atomic_read(&icp_ocfDrvIsExiting)) {
+               crp->crp_etype = EFAULT;
+               return EFAULT;
+       }
+
+       sessionData = (struct icp_drvSessionData *)
+           (CRYPTO_SESID2LID(crp->crp_sid));
+       if (NULL == sessionData) {
+               DPRINTK("%s(): Invalid input parameters, Null Session ID \n",
+                       __FUNCTION__);
+               crp->crp_etype = EINVAL;
+               return EINVAL;
+       }
+
+/*If we get a request against a deregisted session, cancel operation*/
+       if (ICP_SESSION_DEREGISTERED == sessionData->inUse) {
+               DPRINTK("%s(): Session ID %d was deregistered \n",
+                       __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
+               crp->crp_etype = EFAULT;
+               return EFAULT;
+       }
+
+/*If none of the session states are set, then the session structure was either
+  not initialised properly or we are reading from a freed memory area (possible
+  due to OCF batch mode not removing queued requests against deregistered 
+  sessions*/
+       if (ICP_SESSION_INITIALISED != sessionData->inUse &&
+           ICP_SESSION_RUNNING != sessionData->inUse) {
+               DPRINTK("%s(): Session - ID %d - not properly initialised or "
+                       "memory freed back to the kernel \n",
+                       __FUNCTION__, (int)(CRYPTO_SESID2LID(crp->crp_sid)));
+               crp->crp_etype = EINVAL;
+               return EINVAL;
+       }
+
+       /*For the below checks, remember error checking is already done in LAC.
+          We're not validating inputs subsequent to registration */
+       if (sessionData->inUse == ICP_SESSION_INITIALISED) {
+               DPRINTK("%s(): Initialising session\n", __FUNCTION__);
+
+               if (NULL != crp->crp_desc->crd_next) {
+                       if (ICP_OCF_DRV_ALG_CIPHER ==
+                           icp_ocfDrvAlgCheck(crp->crp_desc)) {
+
+                               sessionData->lacSessCtx.algChainOrder =
+                                   CPA_CY_SYM_ALG_CHAIN_ORDER_CIPHER_THEN_HASH;
+
+                               if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
+                                       sessionData->lacSessCtx.cipherSetupData.
+                                           cipherDirection =
+                                           CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+                               } else {
+                                       sessionData->lacSessCtx.cipherSetupData.
+                                           cipherDirection =
+                                           CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+                               }
+                       } else {
+                               sessionData->lacSessCtx.algChainOrder =
+                                   CPA_CY_SYM_ALG_CHAIN_ORDER_HASH_THEN_CIPHER;
+
+                               if (crp->crp_desc->crd_next->crd_flags &
+                                   CRD_F_ENCRYPT) {
+                                       sessionData->lacSessCtx.cipherSetupData.
+                                           cipherDirection =
+                                           CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+                               } else {
+                                       sessionData->lacSessCtx.cipherSetupData.
+                                           cipherDirection =
+                                           CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+                               }
+
+                       }
+
+               } else if (ICP_OCF_DRV_ALG_CIPHER ==
+                          icp_ocfDrvAlgCheck(crp->crp_desc)) {
+                       if (crp->crp_desc->crd_flags & CRD_F_ENCRYPT) {
+                               sessionData->lacSessCtx.cipherSetupData.
+                                   cipherDirection =
+                                   CPA_CY_SYM_CIPHER_DIRECTION_ENCRYPT;
+                       } else {
+                               sessionData->lacSessCtx.cipherSetupData.
+                                   cipherDirection =
+                                   CPA_CY_SYM_CIPHER_DIRECTION_DECRYPT;
+                       }
+
+               }
+
+               /*No action required for standalone Auth here */
+
+               /* Allocate memory for SymSessionCtx before the Session Registration */
+               lacStatus =
+                   cpaCySymSessionCtxGetSize(CPA_INSTANCE_HANDLE_SINGLE,
+                                             &(sessionData->lacSessCtx),
+                                             &sessionCtxSizeInBytes);
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): cpaCySymSessionCtxGetSize failed - %d\n",
+                               __FUNCTION__, lacStatus);
+                       return EINVAL;
+               }
+               sessionData->sessHandle =
+                   kmalloc(sessionCtxSizeInBytes, GFP_ATOMIC);
+               if (NULL == sessionData->sessHandle) {
+                       EPRINTK
+                           ("%s(): Failed to get memory for SymSessionCtx\n",
+                            __FUNCTION__);
+                       return ENOMEM;
+               }
+
+               lacStatus = cpaCySymInitSession(CPA_INSTANCE_HANDLE_SINGLE,
+                                               icp_ocfDrvSymCallBack,
+                                               &(sessionData->lacSessCtx),
+                                               sessionData->sessHandle);
+
+               if (CPA_STATUS_SUCCESS != lacStatus) {
+                       EPRINTK("%s(): cpaCySymInitSession failed -%d \n",
+                               __FUNCTION__, lacStatus);
+                       return EFAULT;
+               }
+
+               sessionData->inUse = ICP_SESSION_RUNNING;
+       }
+
+       drvOpData = kmem_cache_zalloc(drvOpData_zone, GFP_ATOMIC);
+       if (NULL == drvOpData) {
+               EPRINTK("%s():Failed to get memory for drvOpData\n",
+                       __FUNCTION__);
+               crp->crp_etype = ENOMEM;
+               return ENOMEM;
+       }
+
+       drvOpData->lacOpData.pSessionCtx = sessionData->sessHandle;
+       drvOpData->digestSizeInBytes = sessionData->lacSessCtx.hashSetupData.
+           digestResultLenInBytes;
+       drvOpData->crp = crp;
+
+       /* Set the default buffer list array memory allocation */
+       drvOpData->srcBuffer.pBuffers = drvOpData->bufferListArray;
+       drvOpData->numBufferListArray = ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS;
+
+       /* 
+        * Allocate buffer list array memory allocation if the
+        * data fragment is more than the default allocation
+        */
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               numBufferListArray = icp_ocfDrvGetSkBuffFrags((struct sk_buff *)
+                                                             crp->crp_buf);
+               if (ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS < numBufferListArray) {
+                       DPRINTK("%s() numBufferListArray more than default\n",
+                               __FUNCTION__);
+                       drvOpData->srcBuffer.pBuffers = NULL;
+                       drvOpData->srcBuffer.pBuffers =
+                           kmalloc(numBufferListArray *
+                                   sizeof(CpaFlatBuffer), GFP_ATOMIC);
+                       if (NULL == drvOpData->srcBuffer.pBuffers) {
+                               EPRINTK("%s() Failed to get memory for "
+                                       "pBuffers\n", __FUNCTION__);
+                               kmem_cache_free(drvOpData_zone, drvOpData);
+                               crp->crp_etype = ENOMEM;
+                               return ENOMEM;
+                       }
+                       drvOpData->numBufferListArray = numBufferListArray;
+               }
+       }
+
+       /*
+        * Check the type of buffer structure we got and convert it into
+        * CpaBufferList format.
+        */
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               if (ICP_OCF_DRV_STATUS_SUCCESS !=
+                   icp_ocfDrvSkBuffToBufferList((struct sk_buff *)crp->crp_buf,
+                                                &(drvOpData->srcBuffer))) {
+                       EPRINTK("%s():Failed to translate from SK_BUF "
+                               "to bufferlist\n", __FUNCTION__);
+                       crp->crp_etype = EINVAL;
+                       goto err;
+               }
+
+               drvOpData->bufferType = CRYPTO_F_SKBUF;
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               /* OCF only supports IOV of one entry. */
+               if (NUM_IOV_SUPPORTED ==
+                   ((struct uio *)(crp->crp_buf))->uio_iovcnt) {
+
+                       icp_ocfDrvPtrAndLenToBufferList(((struct uio *)(crp->
+                                                                       crp_buf))->
+                                                       uio_iov[0].iov_base,
+                                                       ((struct uio *)(crp->
+                                                                       crp_buf))->
+                                                       uio_iov[0].iov_len,
+                                                       &(drvOpData->
+                                                         srcBuffer));
+
+                       drvOpData->bufferType = CRYPTO_F_IOV;
+
+               } else {
+                       DPRINTK("%s():Unable to handle IOVs with lengths of "
+                               "greater than one!\n", __FUNCTION__);
+                       crp->crp_etype = EINVAL;
+                       goto err;
+               }
+
+       } else {
+               icp_ocfDrvPtrAndLenToBufferList(crp->crp_buf,
+                                               crp->crp_ilen,
+                                               &(drvOpData->srcBuffer));
+
+               drvOpData->bufferType = CRYPTO_BUF_CONTIG;
+       }
+
+       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+           icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->crp_desc)) {
+               crp->crp_etype = EINVAL;
+               goto err;
+       }
+
+       if (drvOpData->crp->crp_desc->crd_next != NULL) {
+               if (icp_ocfDrvProcessDataSetup(drvOpData, drvOpData->crp->
+                                              crp_desc->crd_next)) {
+                       crp->crp_etype = EINVAL;
+                       goto err;
+               }
+
+       }
+
+       /* Allocate srcBuffer's private meta data */
+       if (ICP_OCF_DRV_STATUS_SUCCESS !=
+           icp_ocfDrvAllocMetaData(&(drvOpData->srcBuffer), drvOpData)) {
+               EPRINTK("%s() icp_ocfDrvAllocMetaData failed\n", __FUNCTION__);
+               memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+               crp->crp_etype = EINVAL;
+               goto err;
+       }
+
+       /* Perform "in-place" crypto operation */
+       lacStatus = cpaCySymPerformOp(CPA_INSTANCE_HANDLE_SINGLE,
+                                     (void *)drvOpData,
+                                     &(drvOpData->lacOpData),
+                                     &(drvOpData->srcBuffer),
+                                     &(drvOpData->srcBuffer),
+                                     &(drvOpData->verifyResult));
+       if (CPA_STATUS_RETRY == lacStatus) {
+               DPRINTK("%s(): cpaCySymPerformOp retry, lacStatus = %d\n",
+                       __FUNCTION__, lacStatus);
+               memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+               crp->crp_etype = EINVAL;
+               goto err;
+       }
+       if (CPA_STATUS_SUCCESS != lacStatus) {
+               EPRINTK("%s(): cpaCySymPerformOp failed, lacStatus = %d\n",
+                       __FUNCTION__, lacStatus);
+               memset(&(drvOpData->lacOpData), 0, sizeof(CpaCySymOpData));
+               crp->crp_etype = EINVAL;
+               goto err;
+       }
+
+       return 0;               //OCF success status value
+
+      err:
+       if (drvOpData->numBufferListArray > ICP_OCF_DRV_DEFAULT_BUFFLIST_ARRAYS) {
+               kfree(drvOpData->srcBuffer.pBuffers);
+       }
+       icp_ocfDrvFreeMetaData(&(drvOpData->srcBuffer));
+       kmem_cache_free(drvOpData_zone, drvOpData);
+
+       return crp->crp_etype;
+}
+
+/* Name        : icp_ocfDrvProcessDataSetup
+ *
+ * Description : This function will setup all the cryptographic operation data
+ *               that is required by LAC to execute the operation.
+ */
+static int icp_ocfDrvProcessDataSetup(struct icp_drvOpData *drvOpData,
+                                     struct cryptodesc *crp_desc)
+{
+       CpaCyRandGenOpData randGenOpData;
+       CpaFlatBuffer randData;
+
+       drvOpData->lacOpData.packetType = CPA_CY_SYM_PACKET_TYPE_FULL;
+
+       /* Convert from the cryptop to the ICP LAC crypto parameters */
+       switch (crp_desc->crd_alg) {
+       case CRYPTO_NULL_CBC:
+               drvOpData->lacOpData.
+                   cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToCipherInBytes = crp_desc->crd_len;
+               drvOpData->verifyResult = CPA_FALSE;
+               drvOpData->lacOpData.ivLenInBytes = NULL_BLOCK_LEN;
+               break;
+       case CRYPTO_DES_CBC:
+               drvOpData->lacOpData.
+                   cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToCipherInBytes = crp_desc->crd_len;
+               drvOpData->verifyResult = CPA_FALSE;
+               drvOpData->lacOpData.ivLenInBytes = DES_BLOCK_LEN;
+               break;
+       case CRYPTO_3DES_CBC:
+               drvOpData->lacOpData.
+                   cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToCipherInBytes = crp_desc->crd_len;
+               drvOpData->verifyResult = CPA_FALSE;
+               drvOpData->lacOpData.ivLenInBytes = DES3_BLOCK_LEN;
+               break;
+       case CRYPTO_ARC4:
+               drvOpData->lacOpData.
+                   cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToCipherInBytes = crp_desc->crd_len;
+               drvOpData->verifyResult = CPA_FALSE;
+               drvOpData->lacOpData.ivLenInBytes = ARC4_COUNTER_LEN;
+               break;
+       case CRYPTO_AES_CBC:
+               drvOpData->lacOpData.
+                   cryptoStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToCipherInBytes = crp_desc->crd_len;
+               drvOpData->verifyResult = CPA_FALSE;
+               drvOpData->lacOpData.ivLenInBytes = RIJNDAEL128_BLOCK_LEN;
+               break;
+       case CRYPTO_SHA1:
+       case CRYPTO_SHA1_HMAC:
+       case CRYPTO_SHA2_256:
+       case CRYPTO_SHA2_256_HMAC:
+       case CRYPTO_SHA2_384:
+       case CRYPTO_SHA2_384_HMAC:
+       case CRYPTO_SHA2_512:
+       case CRYPTO_SHA2_512_HMAC:
+       case CRYPTO_MD5:
+       case CRYPTO_MD5_HMAC:
+               drvOpData->lacOpData.
+                   hashStartSrcOffsetInBytes = crp_desc->crd_skip;
+               drvOpData->lacOpData.
+                   messageLenToHashInBytes = crp_desc->crd_len;
+               drvOpData->lacOpData.
+                   pDigestResult =
+                   icp_ocfDrvDigestPointerFind(drvOpData, crp_desc);
+
+               if (NULL == drvOpData->lacOpData.pDigestResult) {
+                       DPRINTK("%s(): ERROR - could not calculate "
+                               "Digest Result memory address\n", __FUNCTION__);
+                       return ICP_OCF_DRV_STATUS_FAIL;
+               }
+
+               drvOpData->lacOpData.digestVerify = CPA_FALSE;
+               break;
+       default:
+               DPRINTK("%s(): Crypto process error - algorithm not "
+                       "found \n", __FUNCTION__);
+               return ICP_OCF_DRV_STATUS_FAIL;
+       }
+
+       /* Figure out what the IV is supposed to be */
+       if ((crp_desc->crd_alg == CRYPTO_DES_CBC) ||
+           (crp_desc->crd_alg == CRYPTO_3DES_CBC) ||
+           (crp_desc->crd_alg == CRYPTO_AES_CBC)) {
+               /*ARC4 doesn't use an IV */
+               if (crp_desc->crd_flags & CRD_F_IV_EXPLICIT) {
+                       /* Explicit IV provided to OCF */
+                       drvOpData->lacOpData.pIv = crp_desc->crd_iv;
+               } else {
+                       /* IV is not explicitly provided to OCF */
+
+                       /* Point the LAC OP Data IV pointer to our allocated
+                          storage location for this session. */
+                       drvOpData->lacOpData.pIv = drvOpData->ivData;
+
+                       if ((crp_desc->crd_flags & CRD_F_ENCRYPT) &&
+                           ((crp_desc->crd_flags & CRD_F_IV_PRESENT) == 0)) {
+
+                               /* Encrypting - need to create IV */
+                               randGenOpData.generateBits = CPA_TRUE;
+                               randGenOpData.lenInBytes = MAX_IV_LEN_IN_BYTES;
+
+                               icp_ocfDrvPtrAndLenToFlatBuffer((Cpa8U *)
+                                                               drvOpData->
+                                                               ivData,
+                                                               MAX_IV_LEN_IN_BYTES,
+                                                               &randData);
+
+                               if (CPA_STATUS_SUCCESS !=
+                                   cpaCyRandGen(CPA_INSTANCE_HANDLE_SINGLE,
+                                                NULL, NULL,
+                                                &randGenOpData, &randData)) {
+                                       DPRINTK("%s(): ERROR - Failed to"
+                                               " generate"
+                                               " Initialisation Vector\n",
+                                               __FUNCTION__);
+                                       return ICP_OCF_DRV_STATUS_FAIL;
+                               }
+
+                               crypto_copyback(drvOpData->crp->
+                                               crp_flags,
+                                               drvOpData->crp->crp_buf,
+                                               crp_desc->crd_inject,
+                                               drvOpData->lacOpData.
+                                               ivLenInBytes,
+                                               (caddr_t) (drvOpData->lacOpData.
+                                                          pIv));
+                       } else {
+                               /* Reading IV from buffer */
+                               crypto_copydata(drvOpData->crp->
+                                               crp_flags,
+                                               drvOpData->crp->crp_buf,
+                                               crp_desc->crd_inject,
+                                               drvOpData->lacOpData.
+                                               ivLenInBytes,
+                                               (caddr_t) (drvOpData->lacOpData.
+                                                          pIv));
+                       }
+
+               }
+
+       }
+
+       return ICP_OCF_DRV_STATUS_SUCCESS;
+}
+
+/* Name        : icp_ocfDrvDigestPointerFind
+ *
+ * Description : This function is used to find the memory address of where the
+ * digest information shall be stored in. Input buffer types are an skbuff, iov
+ * or flat buffer. The address is found using the buffer data start address and
+ * an offset.
+ *
+ * Note: In the case of a linux skbuff, the digest address may exist within
+ * a memory space linked to from the start buffer. These linked memory spaces
+ * must be traversed by the data length offset in order to find the digest start
+ * address. Whether there is enough space for the digest must also be checked.
+ */
+
+static uint8_t *icp_ocfDrvDigestPointerFind(struct icp_drvOpData *drvOpData,
+                                           struct cryptodesc *crp_desc)
+{
+
+       int offsetInBytes = crp_desc->crd_inject;
+       uint32_t digestSizeInBytes = drvOpData->digestSizeInBytes;
+       uint8_t *flat_buffer_base = NULL;
+       int flat_buffer_length = 0;
+       struct sk_buff *skb;
+
+       if (drvOpData->crp->crp_flags & CRYPTO_F_SKBUF) {
+               /*check if enough overall space to store hash */
+               skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
+
+               if (skb->len < (offsetInBytes + digestSizeInBytes)) {
+                       DPRINTK("%s() Not enough space for Digest"
+                               " payload after the offset (%d), "
+                               "digest size (%d) \n", __FUNCTION__,
+                               offsetInBytes, digestSizeInBytes);
+                       return NULL;
+               }
+
+               return icp_ocfDrvSkbuffDigestPointerFind(drvOpData,
+                                                        offsetInBytes,
+                                                        digestSizeInBytes);
+
+       } else {
+               /* IOV or flat buffer */
+               if (drvOpData->crp->crp_flags & CRYPTO_F_IOV) {
+                       /*single IOV check has already been done */
+                       flat_buffer_base = ((struct uio *)
+                                           (drvOpData->crp->crp_buf))->
+                           uio_iov[0].iov_base;
+                       flat_buffer_length = ((struct uio *)
+                                             (drvOpData->crp->crp_buf))->
+                           uio_iov[0].iov_len;
+               } else {
+                       flat_buffer_base = (uint8_t *) drvOpData->crp->crp_buf;
+                       flat_buffer_length = drvOpData->crp->crp_ilen;
+               }
+
+               if (flat_buffer_length < (offsetInBytes + digestSizeInBytes)) {
+                       DPRINTK("%s() Not enough space for Digest "
+                               "(IOV/Flat Buffer) \n", __FUNCTION__);
+                       return NULL;
+               } else {
+                       return (uint8_t *) (flat_buffer_base + offsetInBytes);
+               }
+       }
+       DPRINTK("%s() Should not reach this point\n", __FUNCTION__);
+       return NULL;
+}
+
+/* Name        : icp_ocfDrvSkbuffDigestPointerFind
+ *
+ * Description : This function is used by icp_ocfDrvDigestPointerFind to process
+ * the non-linear portion of the skbuff if the fragmentation type is a linked
+ * list (frag_list is not NULL in the skb_shared_info structure)
+ */
+static inline uint8_t *icp_ocfDrvSkbuffDigestPointerFind(struct icp_drvOpData
+                                                        *drvOpData,
+                                                        int offsetInBytes,
+                                                        uint32_t
+                                                        digestSizeInBytes)
+{
+
+       struct sk_buff *skb = NULL;
+       struct skb_shared_info *skb_shared = NULL;
+
+       uint32_t skbuffisnonlinear = 0;
+
+       uint32_t skbheadlen = 0;
+
+       skb = (struct sk_buff *)(drvOpData->crp->crp_buf);
+       skbuffisnonlinear = skb_is_nonlinear(skb);
+
+       skbheadlen = skb_headlen(skb);
+
+       /*Linear skb checks */
+       if (skbheadlen > offsetInBytes) {
+
+               if (skbheadlen >= (offsetInBytes + digestSizeInBytes)) {
+                       return (uint8_t *) (skb->data + offsetInBytes);
+               } else {
+                       DPRINTK("%s() Auth payload stretches "
+                               "accross contiguous memory\n", __FUNCTION__);
+                       return NULL;
+               }
+       } else {
+               if (skbuffisnonlinear) {
+                       offsetInBytes -= skbheadlen;
+               } else {
+                       DPRINTK("%s() Offset outside of buffer boundaries\n",
+                               __FUNCTION__);
+                       return NULL;
+               }
+       }
+
+       /*Non Linear checks */
+       skb_shared = (struct skb_shared_info *)(skb->end);
+       if (unlikely(NULL == skb_shared)) {
+               DPRINTK("%s() skbuff shared info stucture is NULL! \n",
+                       __FUNCTION__);
+               return NULL;
+       } else if ((0 != skb_shared->nr_frags) &&
+                  (skb_shared->frag_list != NULL)) {
+               DPRINTK("%s() skbuff nr_frags AND "
+                       "frag_list not supported \n", __FUNCTION__);
+               return NULL;
+       }
+
+       /*TCP segmentation more likely than IP fragmentation */
+       if (likely(0 != skb_shared->nr_frags)) {
+               return icp_ocfDrvDigestSkbNRFragsCheck(skb, skb_shared,
+                                                      offsetInBytes,
+                                                      digestSizeInBytes);
+       } else if (skb_shared->frag_list != NULL) {
+               return icp_ocfDrvDigestSkbFragListCheck(skb, skb_shared,
+                                                       offsetInBytes,
+                                                       digestSizeInBytes);
+       } else {
+               DPRINTK("%s() skbuff is non-linear but does not show any "
+                       "linked data\n", __FUNCTION__);
+               return NULL;
+       }
+
+}
+
+/* Name        : icp_ocfDrvDigestSkbNRFragsCheck
+ *
+ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to
+ * process the non-linear portion of the skbuff, if the fragmentation type is
+ * page fragments
+ */
+static inline uint8_t *icp_ocfDrvDigestSkbNRFragsCheck(struct sk_buff *skb,
+                                                      struct skb_shared_info
+                                                      *skb_shared,
+                                                      int offsetInBytes,
+                                                      uint32_t
+                                                      digestSizeInBytes)
+{
+       int i = 0;
+       /*nr_frags starts from 1 */
+       if (MAX_SKB_FRAGS < skb_shared->nr_frags) {
+               DPRINTK("%s error processing skbuff "
+                       "page frame -- MAX FRAGS exceeded \n", __FUNCTION__);
+               return NULL;
+       }
+
+       for (i = 0; i < skb_shared->nr_frags; i++) {
+
+               if (offsetInBytes >= skb_shared->frags[i].size) {
+                       /*offset still greater than data position */
+                       offsetInBytes -= skb_shared->frags[i].size;
+               } else {
+                       /* found the page containing start of hash */
+
+                       if (NULL == skb_shared->frags[i].page) {
+                               DPRINTK("%s() Linked page is NULL!\n",
+                                       __FUNCTION__);
+                               return NULL;
+                       }
+
+                       if (offsetInBytes + digestSizeInBytes >
+                           skb_shared->frags[i].size) {
+                               DPRINTK("%s() Auth payload stretches accross "
+                                       "contiguous memory\n", __FUNCTION__);
+                               return NULL;
+                       } else {
+                               return (uint8_t *) (skb_shared->frags[i].page +
+                                                   skb_shared->frags[i].
+                                                   page_offset +
+                                                   offsetInBytes);
+                       }
+               }
+               /*only possible if internal page sizes are set wrong */
+               if (offsetInBytes < 0) {
+                       DPRINTK("%s error processing skbuff page frame "
+                               "-- offset calculation \n", __FUNCTION__);
+                       return NULL;
+               }
+       }
+       /*only possible if internal page sizes are set wrong */
+       DPRINTK("%s error processing skbuff page frame "
+               "-- ran out of page fragments, remaining offset = %d \n",
+               __FUNCTION__, offsetInBytes);
+       return NULL;
+
+}
+
+/* Name        : icp_ocfDrvDigestSkbFragListCheck
+ *
+ * Description : This function is used by icp_ocfDrvSkbuffDigestPointerFind to 
+ * process the non-linear portion of the skbuff, if the fragmentation type is 
+ * a linked list
+ * 
+ */
+static inline uint8_t *icp_ocfDrvDigestSkbFragListCheck(struct sk_buff *skb,
+                                                       struct skb_shared_info
+                                                       *skb_shared,
+                                                       int offsetInBytes,
+                                                       uint32_t
+                                                       digestSizeInBytes)
+{
+
+       struct sk_buff *skb_list = skb_shared->frag_list;
+       /*check added for readability */
+       if (NULL == skb_list) {
+               DPRINTK("%s error processing skbuff "
+                       "-- no more list! \n", __FUNCTION__);
+               return NULL;
+       }
+
+       for (; skb_list; skb_list = skb_list->next) {
+               if (NULL == skb_list) {
+                       DPRINTK("%s error processing skbuff "
+                               "-- no more list! \n", __FUNCTION__);
+                       return NULL;
+               }
+
+               if (offsetInBytes >= skb_list->len) {
+                       offsetInBytes -= skb_list->len;
+
+               } else {
+                       if (offsetInBytes + digestSizeInBytes > skb_list->len) {
+                               DPRINTK("%s() Auth payload stretches accross "
+                                       "contiguous memory\n", __FUNCTION__);
+                               return NULL;
+                       } else {
+                               return (uint8_t *)
+                                   (skb_list->data + offsetInBytes);
+                       }
+
+               }
+
+               /*This check is only needed if internal skb_list length values
+                  are set wrong. */
+               if (0 > offsetInBytes) {
+                       DPRINTK("%s() error processing skbuff object -- offset "
+                               "calculation \n", __FUNCTION__);
+                       return NULL;
+               }
+
+       }
+
+       /*catch all for unusual for-loop exit. 
+          This code should never be reached */
+       DPRINTK("%s() Catch-All hit! Process error.\n", __FUNCTION__);
+       return NULL;
+}
--- /dev/null
+++ b/crypto/ocf/pasemi/pasemi.c
@@ -0,0 +1,1009 @@
+/*
+ * Copyright (C) 2007 PA Semi, Inc
+ *
+ * Driver for the PA Semi PWRficient DMA Crypto Engine
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef AUTOCONF_INCLUDED
+#include <linux/config.h>
+#endif
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/random.h>
+#include <linux/skbuff.h>
+#include <asm/scatterlist.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <cryptodev.h>
+#include <uio.h>
+#include "pasemi_fnu.h"
+
+#define DRV_NAME "pasemi"
+
+#define TIMER_INTERVAL 1000
+
+static void __devexit pasemi_dma_remove(struct pci_dev *pdev);
+static struct pasdma_status volatile * dma_status;
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "Enable debug");
+
+static void pasemi_desc_start(struct pasemi_desc *desc, u64 hdr)
+{
+       desc->postop = 0;
+       desc->quad[0] = hdr;
+       desc->quad_cnt = 1;
+       desc->size = 1;
+}
+
+static void pasemi_desc_build(struct pasemi_desc *desc, u64 val)
+{
+       desc->quad[desc->quad_cnt++] = val;
+       desc->size = (desc->quad_cnt + 1) / 2;
+}
+
+static void pasemi_desc_hdr(struct pasemi_desc *desc, u64 hdr)
+{
+       desc->quad[0] |= hdr;
+}
+
+static int pasemi_desc_size(struct pasemi_desc *desc)
+{
+       return desc->size;
+}
+
+static void pasemi_ring_add_desc(
+                                struct pasemi_fnu_txring *ring,
+                                struct pasemi_desc *desc,
+                                struct cryptop *crp) {
+       int i;
+       int ring_index = 2 * (ring->next_to_fill & (TX_RING_SIZE-1));
+
+       TX_DESC_INFO(ring, ring->next_to_fill).desc_size = desc->size;
+       TX_DESC_INFO(ring, ring->next_to_fill).desc_postop = desc->postop;
+       TX_DESC_INFO(ring, ring->next_to_fill).cf_crp = crp;
+
+       for (i = 0; i < desc->quad_cnt; i += 2) {
+               ring_index = 2 * (ring->next_to_fill & (TX_RING_SIZE-1));
+               ring->desc[ring_index] = desc->quad[i];
+               ring->desc[ring_index + 1] = desc->quad[i + 1];
+               ring->next_to_fill++;
+       }
+
+       if (desc->quad_cnt & 1)
+               ring->desc[ring_index + 1] = 0;
+}
+
+static void pasemi_ring_incr(struct pasemi_softc *sc, int chan_index, int incr)
+{
+       out_le32(sc->dma_regs + PAS_DMA_TXCHAN_INCR(sc->base_chan + chan_index),
+                incr);
+}
+
+/*
+ * Generate a new software session.
+ */
+static int
+pasemi_newsession(device_t dev, u_int32_t *sidp, struct cryptoini *cri)
+{
+       struct cryptoini *c, *encini = NULL, *macini = NULL;
+       struct pasemi_softc *sc = device_get_softc(dev);
+       struct pasemi_session *ses = NULL, **sespp;
+       int sesn, blksz = 0;
+       u64 ccmd = 0;
+       unsigned long flags;
+       struct pasemi_desc init_desc;
+       struct pasemi_fnu_txring *txring;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+       if (sidp == NULL || cri == NULL || sc == NULL) {
+               DPRINTF("%s,%d - EINVAL\n", __FILE__, __LINE__);
+               return -EINVAL;
+       }
+       for (c = cri; c != NULL; c = c->cri_next) {
+               if (ALG_IS_SIG(c->cri_alg)) {
+                       if (macini)
+                               return -EINVAL;
+                       macini = c;
+               } else if (ALG_IS_CIPHER(c->cri_alg)) {
+                       if (encini)
+                               return -EINVAL;
+                       encini = c;
+               } else {
+                       DPRINTF("UNKNOWN c->cri_alg %d\n", c->cri_alg);
+                       return -EINVAL;
+               }
+       }
+       if (encini == NULL && macini == NULL)
+               return -EINVAL;
+       if (encini) {
+               /* validate key length */
+               switch (encini->cri_alg) {
+               case CRYPTO_DES_CBC:
+                       if (encini->cri_klen != 64)
+                               return -EINVAL;
+                       ccmd = DMA_CALGO_DES;
+                       break;
+               case CRYPTO_3DES_CBC:
+                       if (encini->cri_klen != 192)
+                               return -EINVAL;
+                       ccmd = DMA_CALGO_3DES;
+                       break;
+               case CRYPTO_AES_CBC:
+                       if (encini->cri_klen != 128 &&
+                           encini->cri_klen != 192 &&
+                           encini->cri_klen != 256)
+                               return -EINVAL;
+                       ccmd = DMA_CALGO_AES;
+                       break;
+               case CRYPTO_ARC4:
+                       if (encini->cri_klen != 128)
+                               return -EINVAL;
+                       ccmd = DMA_CALGO_ARC;
+                       break;
+               default:
+                       DPRINTF("UNKNOWN encini->cri_alg %d\n",
+                               encini->cri_alg);
+                       return -EINVAL;
+               }
+       }
+
+       if (macini) {
+               switch (macini->cri_alg) {
+               case CRYPTO_MD5:
+               case CRYPTO_MD5_HMAC:
+                       blksz = 16;
+                       break;
+               case CRYPTO_SHA1:
+               case CRYPTO_SHA1_HMAC:
+                       blksz = 20;
+                       break;
+               default:
+                       DPRINTF("UNKNOWN macini->cri_alg %d\n",
+                               macini->cri_alg);
+                       return -EINVAL;
+               }
+               if (((macini->cri_klen + 7) / 8) > blksz) {
+                       DPRINTF("key length %d bigger than blksize %d not supported\n",
+                               ((macini->cri_klen + 7) / 8), blksz);
+                       return -EINVAL;
+               }
+       }
+
+       for (sesn = 0; sesn < sc->sc_nsessions; sesn++) {
+               if (sc->sc_sessions[sesn] == NULL) {
+                       sc->sc_sessions[sesn] = (struct pasemi_session *)
+                               kzalloc(sizeof(struct pasemi_session), GFP_ATOMIC);
+                       ses = sc->sc_sessions[sesn];
+                       break;
+               } else if (sc->sc_sessions[sesn]->used == 0) {
+                       ses = sc->sc_sessions[sesn];
+                       break;
+               }
+       }
+
+       if (ses == NULL) {
+               sespp = (struct pasemi_session **)
+                       kzalloc(sc->sc_nsessions * 2 *
+                               sizeof(struct pasemi_session *), GFP_ATOMIC);
+               if (sespp == NULL)
+                       return -ENOMEM;
+               memcpy(sespp, sc->sc_sessions,
+                      sc->sc_nsessions * sizeof(struct pasemi_session *));
+               kfree(sc->sc_sessions);
+               sc->sc_sessions = sespp;
+               sesn = sc->sc_nsessions;
+               ses = sc->sc_sessions[sesn] = (struct pasemi_session *)
+                       kzalloc(sizeof(struct pasemi_session), GFP_ATOMIC);
+               if (ses == NULL)
+                       return -ENOMEM;
+               sc->sc_nsessions *= 2;
+       }
+
+       ses->used = 1;
+
+       ses->dma_addr = pci_map_single(sc->dma_pdev, (void *) ses->civ,
+                                      sizeof(struct pasemi_session), DMA_TO_DEVICE);
+
+       /* enter the channel scheduler */
+       spin_lock_irqsave(&sc->sc_chnlock, flags);
+
+       /* ARC4 has to be processed by the even channel */
+       if (encini && (encini->cri_alg == CRYPTO_ARC4))
+               ses->chan = sc->sc_lastchn & ~1;
+       else
+               ses->chan = sc->sc_lastchn;
+       sc->sc_lastchn = (sc->sc_lastchn + 1) % sc->sc_num_channels;
+
+       spin_unlock_irqrestore(&sc->sc_chnlock, flags);
+
+       txring = &sc->tx[ses->chan];
+
+       if (encini) {
+               ses->ccmd = ccmd;
+
+               /* get an IV */
+               /* XXX may read fewer than requested */
+               get_random_bytes(ses->civ, sizeof(ses->civ));
+
+               ses->keysz = (encini->cri_klen - 63) / 64;
+               memcpy(ses->key, encini->cri_key, (ses->keysz + 1) * 8);
+
+               pasemi_desc_start(&init_desc,
+                                 XCT_CTRL_HDR(ses->chan, (encini && macini) ? 0x68 : 0x40, DMA_FN_CIV0));
+               pasemi_desc_build(&init_desc,
+                                 XCT_FUN_SRC_PTR((encini && macini) ? 0x68 : 0x40, ses->dma_addr));
+       }
+       if (macini) {
+               if (macini->cri_alg == CRYPTO_MD5_HMAC ||
+                   macini->cri_alg == CRYPTO_SHA1_HMAC)
+                       memcpy(ses->hkey, macini->cri_key, blksz);
+               else {
+                       /* Load initialization constants(RFC 1321, 3174) */
+                       ses->hiv[0] = 0x67452301efcdab89ULL;
+                       ses->hiv[1] = 0x98badcfe10325476ULL;
+                       ses->hiv[2] = 0xc3d2e1f000000000ULL;
+               }
+               ses->hseq = 0ULL;
+       }
+
+       spin_lock_irqsave(&txring->fill_lock, flags);
+
+       if (((txring->next_to_fill + pasemi_desc_size(&init_desc)) -
+            txring->next_to_clean) > TX_RING_SIZE) {
+               spin_unlock_irqrestore(&txring->fill_lock, flags);
+               return ERESTART;
+       }
+
+       if (encini) {
+               pasemi_ring_add_desc(txring, &init_desc, NULL);
+               pasemi_ring_incr(sc, ses->chan,
+                                pasemi_desc_size(&init_desc));
+       }
+
+       txring->sesn = sesn;
+       spin_unlock_irqrestore(&txring->fill_lock, flags);
+
+       *sidp = PASEMI_SID(sesn);
+       return 0;
+}
+
+/*
+ * Deallocate a session.
+ */
+static int
+pasemi_freesession(device_t dev, u_int64_t tid)
+{
+       struct pasemi_softc *sc = device_get_softc(dev);
+       int session;
+       u_int32_t sid = ((u_int32_t) tid) & 0xffffffff;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (sc == NULL)
+               return -EINVAL;
+       session = PASEMI_SESSION(sid);
+       if (session >= sc->sc_nsessions || !sc->sc_sessions[session])
+               return -EINVAL;
+
+       pci_unmap_single(sc->dma_pdev,
+                        sc->sc_sessions[session]->dma_addr,
+                        sizeof(struct pasemi_session), DMA_TO_DEVICE);
+       memset(sc->sc_sessions[session], 0,
+              sizeof(struct pasemi_session));
+
+       return 0;
+}
+
+static int
+pasemi_process(device_t dev, struct cryptop *crp, int hint)
+{
+
+       int err = 0, ivsize, srclen = 0, reinit = 0, reinit_size = 0, chsel;
+       struct pasemi_softc *sc = device_get_softc(dev);
+       struct cryptodesc *crd1, *crd2, *maccrd, *enccrd;
+       caddr_t ivp;
+       struct pasemi_desc init_desc, work_desc;
+       struct pasemi_session *ses;
+       struct sk_buff *skb;
+       struct uio *uiop;
+       unsigned long flags;
+       struct pasemi_fnu_txring *txring;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (crp == NULL || crp->crp_callback == NULL || sc == NULL)
+               return -EINVAL;
+
+       crp->crp_etype = 0;
+       if (PASEMI_SESSION(crp->crp_sid) >= sc->sc_nsessions)
+               return -EINVAL;
+
+       ses = sc->sc_sessions[PASEMI_SESSION(crp->crp_sid)];
+
+       crd1 = crp->crp_desc;
+       if (crd1 == NULL) {
+               err = -EINVAL;
+               goto errout;
+       }
+       crd2 = crd1->crd_next;
+
+       if (ALG_IS_SIG(crd1->crd_alg)) {
+               maccrd = crd1;
+               if (crd2 == NULL)
+                       enccrd = NULL;
+               else if (ALG_IS_CIPHER(crd2->crd_alg) &&
+                        (crd2->crd_flags & CRD_F_ENCRYPT) == 0)
+                       enccrd = crd2;
+               else
+                       goto erralg;
+       } else if (ALG_IS_CIPHER(crd1->crd_alg)) {
+               enccrd = crd1;
+               if (crd2 == NULL)
+                       maccrd = NULL;
+               else if (ALG_IS_SIG(crd2->crd_alg) &&
+                        (crd1->crd_flags & CRD_F_ENCRYPT))
+                       maccrd = crd2;
+               else
+                       goto erralg;
+       } else
+               goto erralg;
+
+       chsel = ses->chan;
+
+       txring = &sc->tx[chsel];
+
+       if (enccrd && !maccrd) {
+               if (enccrd->crd_alg == CRYPTO_ARC4)
+                       reinit = 1;
+               reinit_size = 0x40;
+               srclen = crp->crp_ilen;
+
+               pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I
+                                 | XCT_FUN_FUN(chsel));
+               if (enccrd->crd_flags & CRD_F_ENCRYPT)
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_CRM_ENC);
+               else
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_CRM_DEC);
+       } else if (enccrd && maccrd) {
+               if (enccrd->crd_alg == CRYPTO_ARC4)
+                       reinit = 1;
+               reinit_size = 0x68;
+
+               if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+                       /* Encrypt -> Authenticate */
+                       pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_ENC_SIG
+                                         | XCT_FUN_A | XCT_FUN_FUN(chsel));
+                       srclen = maccrd->crd_skip + maccrd->crd_len;
+               } else {
+                       /* Authenticate -> Decrypt */
+                       pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_SIG_DEC
+                                         | XCT_FUN_24BRES | XCT_FUN_FUN(chsel));
+                       pasemi_desc_build(&work_desc, 0);
+                       pasemi_desc_build(&work_desc, 0);
+                       pasemi_desc_build(&work_desc, 0);
+                       work_desc.postop = PASEMI_CHECK_SIG;
+                       srclen = crp->crp_ilen;
+               }
+
+               pasemi_desc_hdr(&work_desc, XCT_FUN_SHL(maccrd->crd_skip / 4));
+               pasemi_desc_hdr(&work_desc, XCT_FUN_CHL(enccrd->crd_skip - maccrd->crd_skip));
+       } else if (!enccrd && maccrd) {
+               srclen = maccrd->crd_len;
+
+               pasemi_desc_start(&init_desc,
+                                 XCT_CTRL_HDR(chsel, 0x58, DMA_FN_HKEY0));
+               pasemi_desc_build(&init_desc,
+                                 XCT_FUN_SRC_PTR(0x58, ((struct pasemi_session *)ses->dma_addr)->hkey));
+
+               pasemi_desc_start(&work_desc, XCT_FUN_O | XCT_FUN_I | XCT_FUN_CRM_SIG
+                                 | XCT_FUN_A | XCT_FUN_FUN(chsel));
+       }
+
+       if (enccrd) {
+               switch (enccrd->crd_alg) {
+               case CRYPTO_3DES_CBC:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_3DES |
+                                       XCT_FUN_BCM_CBC);
+                       ivsize = sizeof(u64);
+                       break;
+               case CRYPTO_DES_CBC:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_DES |
+                                       XCT_FUN_BCM_CBC);
+                       ivsize = sizeof(u64);
+                       break;
+               case CRYPTO_AES_CBC:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_AES |
+                                       XCT_FUN_BCM_CBC);
+                       ivsize = 2 * sizeof(u64);
+                       break;
+               case CRYPTO_ARC4:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_ALG_ARC);
+                       ivsize = 0;
+                       break;
+               default:
+                       printk(DRV_NAME ": unimplemented enccrd->crd_alg %d\n",
+                              enccrd->crd_alg);
+                       err = -EINVAL;
+                       goto errout;
+               }
+
+               ivp = (ivsize == sizeof(u64)) ? (caddr_t) &ses->civ[1] : (caddr_t) &ses->civ[0];
+               if (enccrd->crd_flags & CRD_F_ENCRYPT) {
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                               memcpy(ivp, enccrd->crd_iv, ivsize);
+                       /* If IV is not present in the buffer already, it has to be copied there */
+                       if ((enccrd->crd_flags & CRD_F_IV_PRESENT) == 0)
+                               crypto_copyback(crp->crp_flags, crp->crp_buf,
+                                               enccrd->crd_inject, ivsize, ivp);
+               } else {
+                       if (enccrd->crd_flags & CRD_F_IV_EXPLICIT)
+                               /* IV is provided expicitly in descriptor */
+                               memcpy(ivp, enccrd->crd_iv, ivsize);
+                       else
+                               /* IV is provided in the packet */
+                               crypto_copydata(crp->crp_flags, crp->crp_buf,
+                                               enccrd->crd_inject, ivsize,
+                                               ivp);
+               }
+       }
+
+       if (maccrd) {
+               switch (maccrd->crd_alg) {
+               case CRYPTO_MD5:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_MD5 |
+                                       XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+                       break;
+               case CRYPTO_SHA1:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_SHA1 |
+                                       XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+                       break;
+               case CRYPTO_MD5_HMAC:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_HMAC_MD5 |
+                                       XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+                       break;
+               case CRYPTO_SHA1_HMAC:
+                       pasemi_desc_hdr(&work_desc, XCT_FUN_SIG_HMAC_SHA1 |
+                                       XCT_FUN_HSZ((crp->crp_ilen - maccrd->crd_inject) / 4));
+                       break;
+               default:
+                       printk(DRV_NAME ": unimplemented maccrd->crd_alg %d\n",
+                              maccrd->crd_alg);
+                       err = -EINVAL;
+                       goto errout;
+               }
+       }
+
+       if (crp->crp_flags & CRYPTO_F_SKBUF) {
+               /* using SKB buffers */
+               skb = (struct sk_buff *)crp->crp_buf;
+               if (skb_shinfo(skb)->nr_frags) {
+                       printk(DRV_NAME ": skb frags unimplemented\n");
+                       err = -EINVAL;
+                       goto errout;
+               }
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_DST_PTR(skb->len, pci_map_single(
+                                               sc->dma_pdev, skb->data,
+                                               skb->len, DMA_TO_DEVICE)));
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_SRC_PTR(
+                               srclen, pci_map_single(
+                                       sc->dma_pdev, skb->data,
+                                       srclen, DMA_TO_DEVICE)));
+               pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+       } else if (crp->crp_flags & CRYPTO_F_IOV) {
+               /* using IOV buffers */
+               uiop = (struct uio *)crp->crp_buf;
+               if (uiop->uio_iovcnt > 1) {
+                       printk(DRV_NAME ": iov frags unimplemented\n");
+                       err = -EINVAL;
+                       goto errout;
+               }
+
+               /* crp_olen is never set; always use crp_ilen */
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_DST_PTR(crp->crp_ilen, pci_map_single(
+                                               sc->dma_pdev,
+                                               uiop->uio_iov->iov_base,
+                                               crp->crp_ilen, DMA_TO_DEVICE)));
+               pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_SRC_PTR(srclen, pci_map_single(
+                                               sc->dma_pdev,
+                                               uiop->uio_iov->iov_base,
+                                               srclen, DMA_TO_DEVICE)));
+       } else {
+               /* using contig buffers */
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_DST_PTR(crp->crp_ilen, pci_map_single(
+                                               sc->dma_pdev,
+                                               crp->crp_buf,
+                                               crp->crp_ilen, DMA_TO_DEVICE)));
+               pasemi_desc_build(
+                       &work_desc,
+                       XCT_FUN_SRC_PTR(srclen, pci_map_single(
+                                               sc->dma_pdev,
+                                               crp->crp_buf, srclen,
+                                               DMA_TO_DEVICE)));
+               pasemi_desc_hdr(&work_desc, XCT_FUN_LLEN(srclen));
+       }
+
+       spin_lock_irqsave(&txring->fill_lock, flags);
+
+       if (txring->sesn != PASEMI_SESSION(crp->crp_sid)) {
+               txring->sesn = PASEMI_SESSION(crp->crp_sid);
+               reinit = 1;
+       }
+
+       if (enccrd) {
+               pasemi_desc_start(&init_desc,
+                                 XCT_CTRL_HDR(chsel, reinit ? reinit_size : 0x10, DMA_FN_CIV0));
+               pasemi_desc_build(&init_desc,
+                                 XCT_FUN_SRC_PTR(reinit ? reinit_size : 0x10, ses->dma_addr));
+       }
+
+       if (((txring->next_to_fill + pasemi_desc_size(&init_desc) +
+             pasemi_desc_size(&work_desc)) -
+            txring->next_to_clean) > TX_RING_SIZE) {
+               spin_unlock_irqrestore(&txring->fill_lock, flags);
+               err = ERESTART;
+               goto errout;
+       }
+
+       pasemi_ring_add_desc(txring, &init_desc, NULL);
+       pasemi_ring_add_desc(txring, &work_desc, crp);
+
+       pasemi_ring_incr(sc, chsel,
+                        pasemi_desc_size(&init_desc) +
+                        pasemi_desc_size(&work_desc));
+
+       spin_unlock_irqrestore(&txring->fill_lock, flags);
+
+       mod_timer(&txring->crypto_timer, jiffies + TIMER_INTERVAL);
+
+       return 0;
+
+erralg:
+       printk(DRV_NAME ": unsupported algorithm or algorithm order alg1 %d alg2 %d\n",
+              crd1->crd_alg, crd2->crd_alg);
+       err = -EINVAL;
+
+errout:
+       if (err != ERESTART) {
+               crp->crp_etype = err;
+               crypto_done(crp);
+       }
+       return err;
+}
+
+static int pasemi_clean_tx(struct pasemi_softc *sc, int chan)
+{
+       int i, j, ring_idx;
+       struct pasemi_fnu_txring *ring = &sc->tx[chan];
+       u16 delta_cnt;
+       int flags, loops = 10;
+       int desc_size;
+       struct cryptop *crp;
+
+       spin_lock_irqsave(&ring->clean_lock, flags);
+
+       while ((delta_cnt = (dma_status->tx_sta[sc->base_chan + chan]
+                            & PAS_STATUS_PCNT_M) - ring->total_pktcnt)
+              && loops--) {
+
+               for (i = 0; i < delta_cnt; i++) {
+                       desc_size = TX_DESC_INFO(ring, ring->next_to_clean).desc_size;
+                       crp = TX_DESC_INFO(ring, ring->next_to_clean).cf_crp;
+                       if (crp) {
+                               ring_idx = 2 * (ring->next_to_clean & (TX_RING_SIZE-1));
+                               if (TX_DESC_INFO(ring, ring->next_to_clean).desc_postop & PASEMI_CHECK_SIG) {
+                                       /* Need to make sure signature matched,
+                                        * if not - return error */
+                                       if (!(ring->desc[ring_idx + 1] & (1ULL << 63)))
+                                               crp->crp_etype = -EINVAL;
+                               }
+                               crypto_done(TX_DESC_INFO(ring,
+                                                        ring->next_to_clean).cf_crp);
+                               TX_DESC_INFO(ring, ring->next_to_clean).cf_crp = NULL;
+                               pci_unmap_single(
+                                       sc->dma_pdev,
+                                       XCT_PTR_ADDR_LEN(ring->desc[ring_idx + 1]),
+                                       PCI_DMA_TODEVICE);
+
+                               ring->desc[ring_idx] = ring->desc[ring_idx + 1] = 0;
+
+                               ring->next_to_clean++;
+                               for (j = 1; j < desc_size; j++) {
+                                       ring_idx = 2 *
+                                               (ring->next_to_clean &
+                                                (TX_RING_SIZE-1));
+                                       pci_unmap_single(
+                                               sc->dma_pdev,
+                                               XCT_PTR_ADDR_LEN(ring->desc[ring_idx]),
+                                               PCI_DMA_TODEVICE);
+                                       if (ring->desc[ring_idx + 1])
+                                               pci_unmap_single(
+                                                       sc->dma_pdev,
+                                                       XCT_PTR_ADDR_LEN(
+                                                               ring->desc[
+                                                                       ring_idx + 1]),
+                                                       PCI_DMA_TODEVICE);
+                                       ring->desc[ring_idx] =
+                                               ring->desc[ring_idx + 1] = 0;
+                                       ring->next_to_clean++;
+                               }
+                       } else {
+                               for (j = 0; j < desc_size; j++) {
+                                       ring_idx = 2 * (ring->next_to_clean & (TX_RING_SIZE-1));
+                                       ring->desc[ring_idx] =
+                                               ring->desc[ring_idx + 1] = 0;
+                                       ring->next_to_clean++;
+                               }
+                       }
+               }
+
+               ring->total_pktcnt += delta_cnt;
+       }
+       spin_unlock_irqrestore(&ring->clean_lock, flags);
+
+       return 0;
+}
+
+static void sweepup_tx(struct pasemi_softc *sc)
+{
+       int i;
+
+       for (i = 0; i < sc->sc_num_channels; i++)
+               pasemi_clean_tx(sc, i);
+}
+
+static irqreturn_t pasemi_intr(int irq, void *arg, struct pt_regs *regs)
+{
+       struct pasemi_softc *sc = arg;
+       unsigned int reg;
+       int chan = irq - sc->base_irq;
+       int chan_index = sc->base_chan + chan;
+       u64 stat = dma_status->tx_sta[chan_index];
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (!(stat & PAS_STATUS_CAUSE_M))
+               return IRQ_NONE;
+
+       pasemi_clean_tx(sc, chan);
+
+       stat = dma_status->tx_sta[chan_index];
+
+       reg = PAS_IOB_DMA_TXCH_RESET_PINTC |
+               PAS_IOB_DMA_TXCH_RESET_PCNT(sc->tx[chan].total_pktcnt);
+
+       if (stat & PAS_STATUS_SOFT)
+               reg |= PAS_IOB_DMA_RXCH_RESET_SINTC;
+
+       out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_RESET(chan_index), reg);
+
+
+       return IRQ_HANDLED;
+}
+
+static int pasemi_dma_setup_tx_resources(struct pasemi_softc *sc, int chan)
+{
+       u32 val;
+       int chan_index = chan + sc->base_chan;
+       int ret;
+       struct pasemi_fnu_txring *ring;
+
+       ring = &sc->tx[chan];
+
+       spin_lock_init(&ring->fill_lock);
+       spin_lock_init(&ring->clean_lock);
+
+       ring->desc_info = kzalloc(sizeof(struct pasemi_desc_info) *
+                                 TX_RING_SIZE, GFP_KERNEL);
+       if (!ring->desc_info)
+               return -ENOMEM;
+
+       /* Allocate descriptors */
+       ring->desc = dma_alloc_coherent(&sc->dma_pdev->dev,
+                                       TX_RING_SIZE *
+                                       2 * sizeof(u64),
+                                       &ring->dma, GFP_KERNEL);
+       if (!ring->desc)
+               return -ENOMEM;
+
+       memset((void *) ring->desc, 0, TX_RING_SIZE * 2 * sizeof(u64));
+
+       out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_RESET(chan_index), 0x30);
+
+       ring->total_pktcnt = 0;
+
+       out_le32(sc->dma_regs + PAS_DMA_TXCHAN_BASEL(chan_index),
+                PAS_DMA_TXCHAN_BASEL_BRBL(ring->dma));
+
+       val = PAS_DMA_TXCHAN_BASEU_BRBH(ring->dma >> 32);
+       val |= PAS_DMA_TXCHAN_BASEU_SIZ(TX_RING_SIZE >> 2);
+
+       out_le32(sc->dma_regs + PAS_DMA_TXCHAN_BASEU(chan_index), val);
+
+       out_le32(sc->dma_regs + PAS_DMA_TXCHAN_CFG(chan_index),
+                PAS_DMA_TXCHAN_CFG_TY_FUNC |
+                PAS_DMA_TXCHAN_CFG_TATTR(chan) |
+                PAS_DMA_TXCHAN_CFG_WT(2));
+
+       /* enable tx channel */
+       out_le32(sc->dma_regs +
+                PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+                PAS_DMA_TXCHAN_TCMDSTA_EN);
+
+       out_le32(sc->iob_regs + PAS_IOB_DMA_TXCH_CFG(chan_index),
+                PAS_IOB_DMA_TXCH_CFG_CNTTH(1000));
+
+       ring->next_to_fill = 0;
+       ring->next_to_clean = 0;
+
+       snprintf(ring->irq_name, sizeof(ring->irq_name),
+                "%s%d", "crypto", chan);
+
+       ring->irq = irq_create_mapping(NULL, sc->base_irq + chan);
+       ret = request_irq(ring->irq, (irq_handler_t)
+                         pasemi_intr, IRQF_DISABLED, ring->irq_name, sc);
+       if (ret) {
+               printk(KERN_ERR DRV_NAME ": failed to hook irq %d ret %d\n",
+                      ring->irq, ret);
+               ring->irq = -1;
+               return ret;
+       }
+
+       setup_timer(&ring->crypto_timer, (void *) sweepup_tx, (unsigned long) sc);
+
+       return 0;
+}
+
+static device_method_t pasemi_methods = {
+       /* crypto device methods */
+       DEVMETHOD(cryptodev_newsession,         pasemi_newsession),
+       DEVMETHOD(cryptodev_freesession,        pasemi_freesession),
+       DEVMETHOD(cryptodev_process,            pasemi_process),
+};
+
+/* Set up the crypto device structure, private data,
+ * and anything else we need before we start */
+
+static int __devinit
+pasemi_dma_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+       struct pasemi_softc *sc;
+       int ret, i;
+
+       DPRINTF(KERN_ERR "%s()\n", __FUNCTION__);
+
+       sc = kzalloc(sizeof(*sc), GFP_KERNEL);
+       if (!sc)
+               return -ENOMEM;
+
+       softc_device_init(sc, DRV_NAME, 1, pasemi_methods);
+
+       pci_set_drvdata(pdev, sc);
+
+       spin_lock_init(&sc->sc_chnlock);
+
+       sc->sc_sessions = (struct pasemi_session **)
+               kzalloc(PASEMI_INITIAL_SESSIONS *
+                       sizeof(struct pasemi_session *), GFP_ATOMIC);
+       if (sc->sc_sessions == NULL) {
+               ret = -ENOMEM;
+               goto out;
+       }
+
+       sc->sc_nsessions = PASEMI_INITIAL_SESSIONS;
+       sc->sc_lastchn = 0;
+       sc->base_irq = pdev->irq + 6;
+       sc->base_chan = 6;
+       sc->sc_cid = -1;
+       sc->dma_pdev = pdev;
+
+       sc->iob_pdev = pci_get_device(PCI_VENDOR_ID_PASEMI, 0xa001, NULL);
+       if (!sc->iob_pdev) {
+               dev_err(&pdev->dev, "Can't find I/O Bridge\n");
+               ret = -ENODEV;
+               goto out;
+       }
+
+       /* This is hardcoded and ugly, but we have some firmware versions
+        * who don't provide the register space in the device tree. Luckily
+        * they are at well-known locations so we can just do the math here.
+        */
+       sc->dma_regs =
+               ioremap(0xe0000000 + (sc->dma_pdev->devfn << 12), 0x2000);
+       sc->iob_regs =
+               ioremap(0xe0000000 + (sc->iob_pdev->devfn << 12), 0x2000);
+       if (!sc->dma_regs || !sc->iob_regs) {
+               dev_err(&pdev->dev, "Can't map registers\n");
+               ret = -ENODEV;
+               goto out;
+       }
+
+       dma_status = __ioremap(0xfd800000, 0x1000, 0);
+       if (!dma_status) {
+               ret = -ENODEV;
+               dev_err(&pdev->dev, "Can't map dmastatus space\n");
+               goto out;
+       }
+
+       sc->tx = (struct pasemi_fnu_txring *)
+               kzalloc(sizeof(struct pasemi_fnu_txring)
+                       * 8, GFP_KERNEL);
+       if (!sc->tx) {
+               ret = -ENOMEM;
+               goto out;
+       }
+
+       /* Initialize the h/w */
+       out_le32(sc->dma_regs + PAS_DMA_COM_CFG,
+                (in_le32(sc->dma_regs + PAS_DMA_COM_CFG) |
+                 PAS_DMA_COM_CFG_FWF));
+       out_le32(sc->dma_regs + PAS_DMA_COM_TXCMD, PAS_DMA_COM_TXCMD_EN);
+
+       for (i = 0; i < PASEMI_FNU_CHANNELS; i++) {
+               sc->sc_num_channels++;
+               ret = pasemi_dma_setup_tx_resources(sc, i);
+               if (ret)
+                       goto out;
+       }
+
+       sc->sc_cid = crypto_get_driverid(softc_get_device(sc),
+                                        CRYPTOCAP_F_HARDWARE);
+       if (sc->sc_cid < 0) {
+               printk(KERN_ERR DRV_NAME ": could not get crypto driver id\n");
+               ret = -ENXIO;
+               goto out;
+       }
+
+       /* register algorithms with the framework */
+       printk(DRV_NAME ":");
+
+       crypto_register(sc->sc_cid, CRYPTO_DES_CBC, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_3DES_CBC, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_AES_CBC, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_ARC4, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_SHA1, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_MD5, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_SHA1_HMAC, 0, 0);
+       crypto_register(sc->sc_cid, CRYPTO_MD5_HMAC, 0, 0);
+
+       return 0;
+
+out:
+       pasemi_dma_remove(pdev);
+       return ret;
+}
+
+#define MAX_RETRIES 5000
+
+static void pasemi_free_tx_resources(struct pasemi_softc *sc, int chan)
+{
+       struct pasemi_fnu_txring *ring = &sc->tx[chan];
+       int chan_index = chan + sc->base_chan;
+       int retries;
+       u32 stat;
+
+       /* Stop the channel */
+       out_le32(sc->dma_regs +
+                PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+                PAS_DMA_TXCHAN_TCMDSTA_ST);
+
+       for (retries = 0; retries < MAX_RETRIES; retries++) {
+               stat = in_le32(sc->dma_regs +
+                              PAS_DMA_TXCHAN_TCMDSTA(chan_index));
+               if (!(stat & PAS_DMA_TXCHAN_TCMDSTA_ACT))
+                       break;
+               cond_resched();
+       }
+
+       if (stat & PAS_DMA_TXCHAN_TCMDSTA_ACT)
+               dev_err(&sc->dma_pdev->dev, "Failed to stop tx channel %d\n",
+                       chan_index);
+
+       /* Disable the channel */
+       out_le32(sc->dma_regs +
+                PAS_DMA_TXCHAN_TCMDSTA(chan_index),
+                0);
+
+       if (ring->desc_info)
+               kfree((void *) ring->desc_info);
+       if (ring->desc)
+               dma_free_coherent(&sc->dma_pdev->dev,
+                                 TX_RING_SIZE *
+                                 2 * sizeof(u64),
+                                 (void *) ring->desc, ring->dma);
+       if (ring->irq != -1)
+               free_irq(ring->irq, sc);
+
+       del_timer(&ring->crypto_timer);
+}
+
+static void __devexit pasemi_dma_remove(struct pci_dev *pdev)
+{
+       struct pasemi_softc *sc = pci_get_drvdata(pdev);
+       int i;
+
+       DPRINTF("%s()\n", __FUNCTION__);
+
+       if (sc->sc_cid >= 0) {
+               crypto_unregister_all(sc->sc_cid);
+       }
+
+       if (sc->tx) {
+               for (i = 0; i < sc->sc_num_channels; i++)
+                       pasemi_free_tx_resources(sc, i);
+
+               kfree(sc->tx);
+       }
+       if (sc->sc_sessions) {
+               for (i = 0; i < sc->sc_nsessions; i++)
+                       kfree(sc->sc_sessions[i]);
+               kfree(sc->sc_sessions);
+       }
+       if (sc->iob_pdev)
+               pci_dev_put(sc->iob_pdev);
+       if (sc->dma_regs)
+               iounmap(sc->dma_regs);
+       if (sc->iob_regs)
+               iounmap(sc->iob_regs);
+       kfree(sc);
+}
+
+static struct pci_device_id pasemi_dma_pci_tbl[] = {
+       { PCI_DEVICE(PCI_VENDOR_ID_PASEMI, 0xa007) },
+};
+
+MODULE_DEVICE_TABLE(pci, pasemi_dma_pci_tbl);
+
+static struct pci_driver pasemi_dma_driver = {
+       .name           = "pasemi_dma",
+       .id_table       = pasemi_dma_pci_tbl,
+       .probe          = pasemi_dma_probe,
+       .remove         = __devexit_p(pasemi_dma_remove),
+};
+
+static void __exit pasemi_dma_cleanup_module(void)
+{
+       pci_unregister_driver(&pasemi_dma_driver);
+       __iounmap(dma_status);
+       dma_status = NULL;
+}
+
+int pasemi_dma_init_module(void)
+{
+       return pci_register_driver(&pasemi_dma_driver);
+}
+
+module_init(pasemi_dma_init_module);
+module_exit(pasemi_dma_cleanup_module);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Egor Martovetsky egor@pasemi.com");
+MODULE_DESCRIPTION("OCF driver for PA Semi PWRficient DMA Crypto Engine");
--- /dev/null
+++ b/crypto/ocf/pasemi/pasemi_fnu.h
@@ -0,0 +1,410 @@
+/*
+ * Copyright (C) 2007 PA Semi, Inc
+ *
+ * Driver for the PA Semi PWRficient DMA Crypto Engine, soft state and
+ * hardware register layouts.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef PASEMI_FNU_H
+#define PASEMI_FNU_H
+
+#include <linux/spinlock.h>
+
+#define        PASEMI_SESSION(sid)     ((sid) & 0xffffffff)
+#define        PASEMI_SID(sesn)        ((sesn) & 0xffffffff)
+#define        DPRINTF(a...)   if (debug) { printk(DRV_NAME ": " a); }
+
+/* Must be a power of two */
+#define RX_RING_SIZE 512
+#define TX_RING_SIZE 512
+#define TX_DESC(ring, num)     ((ring)->desc[2 * (num & (TX_RING_SIZE-1))])
+#define TX_DESC_INFO(ring, num)        ((ring)->desc_info[(num) & (TX_RING_SIZE-1)])
+#define MAX_DESC_SIZE 8
+#define PASEMI_INITIAL_SESSIONS 10
+#define PASEMI_FNU_CHANNELS 8
+
+/* DMA descriptor */
+struct pasemi_desc {
+       u64 quad[2*MAX_DESC_SIZE];
+       int quad_cnt;
+       int size;
+       int postop;
+};
+
+/*
+ * Holds per descriptor data
+ */
+struct pasemi_desc_info {
+       int                     desc_size;
+       int                     desc_postop;
+#define PASEMI_CHECK_SIG 0x1
+
+       struct cryptop          *cf_crp;
+};
+
+/*
+ * Holds per channel data
+ */
+struct pasemi_fnu_txring {
+       volatile u64            *desc;
+       volatile struct
+       pasemi_desc_info        *desc_info;
+       dma_addr_t              dma;
+       struct timer_list       crypto_timer;
+       spinlock_t              fill_lock;
+       spinlock_t              clean_lock;
+       unsigned int            next_to_fill;
+       unsigned int            next_to_clean;
+       u16                     total_pktcnt;
+       int                     irq;
+       int                     sesn;
+       char                    irq_name[10];
+};
+
+/*
+ * Holds data specific to a single pasemi device.
+ */
+struct pasemi_softc {
+       softc_device_decl       sc_cdev;
+       struct pci_dev          *dma_pdev;      /* device backpointer */
+       struct pci_dev          *iob_pdev;      /* device backpointer */
+       void __iomem            *dma_regs;
+       void __iomem            *iob_regs;
+       int                     base_irq;
+       int                     base_chan;
+       int32_t                 sc_cid;         /* crypto tag */
+       int                     sc_nsessions;
+       struct pasemi_session   **sc_sessions;
+       int                     sc_num_channels;/* number of crypto channels */
+
+       /* pointer to the array of txring datastructures, one txring per channel */
+       struct pasemi_fnu_txring *tx;
+
+       /*
+        * mutual exclusion for the channel scheduler
+        */
+       spinlock_t              sc_chnlock;
+       /* last channel used, for now use round-robin to allocate channels */
+       int                     sc_lastchn;
+};
+
+struct pasemi_session {
+       u64 civ[2];
+       u64 keysz;
+       u64 key[4];
+       u64 ccmd;
+       u64 hkey[4];
+       u64 hseq;
+       u64 giv[2];
+       u64 hiv[4];
+
+       int used;
+       dma_addr_t      dma_addr;
+       int chan;
+};
+
+/* status register layout in IOB region, at 0xfd800000 */
+struct pasdma_status {
+       u64 rx_sta[64];
+       u64 tx_sta[20];
+};
+
+#define ALG_IS_CIPHER(alg) ((alg == CRYPTO_DES_CBC)            || \
+                               (alg == CRYPTO_3DES_CBC)        || \
+                               (alg == CRYPTO_AES_CBC)         || \
+                               (alg == CRYPTO_ARC4)            || \
+                               (alg == CRYPTO_NULL_CBC))
+
+#define ALG_IS_SIG(alg) ((alg == CRYPTO_MD5)                   || \
+                               (alg == CRYPTO_MD5_HMAC)        || \
+                               (alg == CRYPTO_SHA1)            || \
+                               (alg == CRYPTO_SHA1_HMAC)       || \
+                               (alg == CRYPTO_NULL_HMAC))
+
+enum {
+       PAS_DMA_COM_TXCMD = 0x100,      /* Transmit Command Register  */
+       PAS_DMA_COM_TXSTA = 0x104,      /* Transmit Status Register   */
+       PAS_DMA_COM_RXCMD = 0x108,      /* Receive Command Register   */
+       PAS_DMA_COM_RXSTA = 0x10c,      /* Receive Status Register    */
+       PAS_DMA_COM_CFG   = 0x114,      /* DMA Configuration Register */
+};
+
+/* All these registers live in the PCI configuration space for the DMA PCI
+ * device. Use the normal PCI config access functions for them.
+ */
+
+#define PAS_DMA_COM_CFG_FWF    0x18000000
+
+#define PAS_DMA_COM_TXCMD_EN   0x00000001 /* enable */
+#define PAS_DMA_COM_TXSTA_ACT  0x00000001 /* active */
+#define PAS_DMA_COM_RXCMD_EN   0x00000001 /* enable */
+#define PAS_DMA_COM_RXSTA_ACT  0x00000001 /* active */
+
+#define _PAS_DMA_TXCHAN_STRIDE 0x20    /* Size per channel             */
+#define _PAS_DMA_TXCHAN_TCMDSTA        0x300   /* Command / Status             */
+#define _PAS_DMA_TXCHAN_CFG    0x304   /* Configuration                */
+#define _PAS_DMA_TXCHAN_DSCRBU 0x308   /* Descriptor BU Allocation     */
+#define _PAS_DMA_TXCHAN_INCR   0x310   /* Descriptor increment         */
+#define _PAS_DMA_TXCHAN_CNT    0x314   /* Descriptor count/offset      */
+#define _PAS_DMA_TXCHAN_BASEL  0x318   /* Descriptor ring base (low)   */
+#define _PAS_DMA_TXCHAN_BASEU  0x31c   /*                      (high)  */
+#define PAS_DMA_TXCHAN_TCMDSTA(c) (0x300+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_TCMDSTA_EN   0x00000001      /* Enabled */
+#define    PAS_DMA_TXCHAN_TCMDSTA_ST   0x00000002      /* Stop interface */
+#define    PAS_DMA_TXCHAN_TCMDSTA_ACT  0x00010000      /* Active */
+#define PAS_DMA_TXCHAN_CFG(c)     (0x304+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_CFG_TY_FUNC  0x00000002      /* Type = interface */
+#define    PAS_DMA_TXCHAN_CFG_TY_IFACE 0x00000000      /* Type = interface */
+#define    PAS_DMA_TXCHAN_CFG_TATTR_M  0x0000003c
+#define    PAS_DMA_TXCHAN_CFG_TATTR_S  2
+#define    PAS_DMA_TXCHAN_CFG_TATTR(x) (((x) << PAS_DMA_TXCHAN_CFG_TATTR_S) & \
+                                        PAS_DMA_TXCHAN_CFG_TATTR_M)
+#define    PAS_DMA_TXCHAN_CFG_WT_M     0x000001c0
+#define    PAS_DMA_TXCHAN_CFG_WT_S     6
+#define    PAS_DMA_TXCHAN_CFG_WT(x)    (((x) << PAS_DMA_TXCHAN_CFG_WT_S) & \
+                                        PAS_DMA_TXCHAN_CFG_WT_M)
+#define    PAS_DMA_TXCHAN_CFG_LPSQ_FAST        0x00000400
+#define    PAS_DMA_TXCHAN_CFG_LPDQ_FAST        0x00000800
+#define    PAS_DMA_TXCHAN_CFG_CF       0x00001000      /* Clean first line */
+#define    PAS_DMA_TXCHAN_CFG_CL       0x00002000      /* Clean last line */
+#define    PAS_DMA_TXCHAN_CFG_UP       0x00004000      /* update tx descr when sent */
+#define PAS_DMA_TXCHAN_INCR(c)    (0x310+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define PAS_DMA_TXCHAN_BASEL(c)   (0x318+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_BASEL_BRBL_M 0xffffffc0
+#define    PAS_DMA_TXCHAN_BASEL_BRBL_S 0
+#define    PAS_DMA_TXCHAN_BASEL_BRBL(x)        (((x) << PAS_DMA_TXCHAN_BASEL_BRBL_S) & \
+                                        PAS_DMA_TXCHAN_BASEL_BRBL_M)
+#define PAS_DMA_TXCHAN_BASEU(c)   (0x31c+(c)*_PAS_DMA_TXCHAN_STRIDE)
+#define    PAS_DMA_TXCHAN_BASEU_BRBH_M 0x00000fff
+#define    PAS_DMA_TXCHAN_BASEU_BRBH_S 0
+#define    PAS_DMA_TXCHAN_BASEU_BRBH(x)        (((x) << PAS_DMA_TXCHAN_BASEU_BRBH_S) & \
+                                        PAS_DMA_TXCHAN_BASEU_BRBH_M)
+/* # of cache lines worth of buffer ring */
+#define    PAS_DMA_TXCHAN_BASEU_SIZ_M  0x3fff0000
+#define    PAS_DMA_TXCHAN_BASEU_SIZ_S  16              /* 0 = 16K */
+#define    PAS_DMA_TXCHAN_BASEU_SIZ(x) (((x) << PAS_DMA_TXCHAN_BASEU_SIZ_S) & \
+                                        PAS_DMA_TXCHAN_BASEU_SIZ_M)
+
+#define    PAS_STATUS_PCNT_M           0x000000000000ffffull
+#define    PAS_STATUS_PCNT_S           0
+#define    PAS_STATUS_DCNT_M           0x00000000ffff0000ull
+#define    PAS_STATUS_DCNT_S           16
+#define    PAS_STATUS_BPCNT_M          0x0000ffff00000000ull
+#define    PAS_STATUS_BPCNT_S          32
+#define    PAS_STATUS_CAUSE_M          0xf000000000000000ull
+#define    PAS_STATUS_TIMER            0x1000000000000000ull
+#define    PAS_STATUS_ERROR            0x2000000000000000ull
+#define    PAS_STATUS_SOFT             0x4000000000000000ull
+#define    PAS_STATUS_INT              0x8000000000000000ull
+
+#define PAS_IOB_DMA_RXCH_CFG(i)                (0x1100 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_M                0x00000fff
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH_S                0
+#define    PAS_IOB_DMA_RXCH_CFG_CNTTH(x)       (((x) << PAS_IOB_DMA_RXCH_CFG_CNTTH_S) & \
+                                                PAS_IOB_DMA_RXCH_CFG_CNTTH_M)
+#define PAS_IOB_DMA_TXCH_CFG(i)                (0x1200 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_M                0x00000fff
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH_S                0
+#define    PAS_IOB_DMA_TXCH_CFG_CNTTH(x)       (((x) << PAS_IOB_DMA_TXCH_CFG_CNTTH_S) & \
+                                                PAS_IOB_DMA_TXCH_CFG_CNTTH_M)
+#define PAS_IOB_DMA_RXCH_STAT(i)       (0x1300 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_STAT_INTGEN        0x00001000
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_M      0x00000fff
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL_S      0
+#define    PAS_IOB_DMA_RXCH_STAT_CNTDEL(x)     (((x) << PAS_IOB_DMA_RXCH_STAT_CNTDEL_S) &\
+                                                PAS_IOB_DMA_RXCH_STAT_CNTDEL_M)
+#define PAS_IOB_DMA_TXCH_STAT(i)       (0x1400 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_STAT_INTGEN        0x00001000
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_M      0x00000fff
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL_S      0
+#define    PAS_IOB_DMA_TXCH_STAT_CNTDEL(x)     (((x) << PAS_IOB_DMA_TXCH_STAT_CNTDEL_S) &\
+                                                PAS_IOB_DMA_TXCH_STAT_CNTDEL_M)
+#define PAS_IOB_DMA_RXCH_RESET(i)      (0x1500 + (i)*4)
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT_M       0xffff0000
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT_S       16
+#define    PAS_IOB_DMA_RXCH_RESET_PCNT(x)      (((x) << PAS_IOB_DMA_RXCH_RESET_PCNT_S) & \
+                                                PAS_IOB_DMA_RXCH_RESET_PCNT_M)
+#define    PAS_IOB_DMA_RXCH_RESET_PCNTRST      0x00000020
+#define    PAS_IOB_DMA_RXCH_RESET_DCNTRST      0x00000010
+#define    PAS_IOB_DMA_RXCH_RESET_TINTC                0x00000008
+#define    PAS_IOB_DMA_RXCH_RESET_DINTC                0x00000004
+#define    PAS_IOB_DMA_RXCH_RESET_SINTC                0x00000002
+#define    PAS_IOB_DMA_RXCH_RESET_PINTC                0x00000001
+#define PAS_IOB_DMA_TXCH_RESET(i)      (0x1600 + (i)*4)
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT_M       0xffff0000
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT_S       16
+#define    PAS_IOB_DMA_TXCH_RESET_PCNT(x)      (((x) << PAS_IOB_DMA_TXCH_RESET_PCNT_S) & \
+                                                PAS_IOB_DMA_TXCH_RESET_PCNT_M)
+#define    PAS_IOB_DMA_TXCH_RESET_PCNTRST      0x00000020
+#define    PAS_IOB_DMA_TXCH_RESET_DCNTRST      0x00000010
+#define    PAS_IOB_DMA_TXCH_RESET_TINTC                0x00000008
+#define    PAS_IOB_DMA_TXCH_RESET_DINTC                0x00000004
+#define    PAS_IOB_DMA_TXCH_RESET_SINTC                0x00000002
+#define    PAS_IOB_DMA_TXCH_RESET_PINTC                0x00000001
+
+#define PAS_IOB_DMA_COM_TIMEOUTCFG             0x1700
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M   0x00ffffff
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S   0
+#define    PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT(x)  (((x) << PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_S) & \
+                                                PAS_IOB_DMA_COM_TIMEOUTCFG_TCNT_M)
+
+/* Transmit descriptor fields */
+#define        XCT_MACTX_T             0x8000000000000000ull
+#define        XCT_MACTX_ST            0x4000000000000000ull
+#define XCT_MACTX_NORES                0x0000000000000000ull
+#define XCT_MACTX_8BRES                0x1000000000000000ull
+#define XCT_MACTX_24BRES       0x2000000000000000ull
+#define XCT_MACTX_40BRES       0x3000000000000000ull
+#define XCT_MACTX_I            0x0800000000000000ull
+#define XCT_MACTX_O            0x0400000000000000ull
+#define XCT_MACTX_E            0x0200000000000000ull
+#define XCT_MACTX_VLAN_M       0x0180000000000000ull
+#define XCT_MACTX_VLAN_NOP     0x0000000000000000ull
+#define XCT_MACTX_VLAN_REMOVE  0x0080000000000000ull
+#define XCT_MACTX_VLAN_INSERT   0x0100000000000000ull
+#define XCT_MACTX_VLAN_REPLACE  0x0180000000000000ull
+#define XCT_MACTX_CRC_M                0x0060000000000000ull
+#define XCT_MACTX_CRC_NOP      0x0000000000000000ull
+#define XCT_MACTX_CRC_INSERT   0x0020000000000000ull
+#define XCT_MACTX_CRC_PAD      0x0040000000000000ull
+#define XCT_MACTX_CRC_REPLACE  0x0060000000000000ull
+#define XCT_MACTX_SS           0x0010000000000000ull
+#define XCT_MACTX_LLEN_M       0x00007fff00000000ull
+#define XCT_MACTX_LLEN_S       32ull
+#define XCT_MACTX_LLEN(x)      ((((long)(x)) << XCT_MACTX_LLEN_S) & \
+                                XCT_MACTX_LLEN_M)
+#define XCT_MACTX_IPH_M                0x00000000f8000000ull
+#define XCT_MACTX_IPH_S                27ull
+#define XCT_MACTX_IPH(x)       ((((long)(x)) << XCT_MACTX_IPH_S) & \
+                                XCT_MACTX_IPH_M)
+#define XCT_MACTX_IPO_M                0x0000000007c00000ull
+#define XCT_MACTX_IPO_S                22ull
+#define XCT_MACTX_IPO(x)       ((((long)(x)) << XCT_MACTX_IPO_S) & \
+                                XCT_MACTX_IPO_M)
+#define XCT_MACTX_CSUM_M       0x0000000000000060ull
+#define XCT_MACTX_CSUM_NOP     0x0000000000000000ull
+#define XCT_MACTX_CSUM_TCP     0x0000000000000040ull
+#define XCT_MACTX_CSUM_UDP     0x0000000000000060ull
+#define XCT_MACTX_V6           0x0000000000000010ull
+#define XCT_MACTX_C            0x0000000000000004ull
+#define XCT_MACTX_AL2          0x0000000000000002ull
+
+#define XCT_PTR_T              0x8000000000000000ull
+#define XCT_PTR_LEN_M          0x7ffff00000000000ull
+#define XCT_PTR_LEN_S          44
+#define XCT_PTR_LEN(x)         ((((long)(x)) << XCT_PTR_LEN_S) & \
+                                XCT_PTR_LEN_M)
+#define XCT_PTR_ADDR_M         0x00000fffffffffffull
+#define XCT_PTR_ADDR_S         0
+#define XCT_PTR_ADDR(x)                ((((long)(x)) << XCT_PTR_ADDR_S) & \
+                                XCT_PTR_ADDR_M)
+
+/* Function descriptor fields */
+#define        XCT_FUN_T               0x8000000000000000ull
+#define        XCT_FUN_ST              0x4000000000000000ull
+#define XCT_FUN_NORES          0x0000000000000000ull
+#define XCT_FUN_8BRES          0x1000000000000000ull
+#define XCT_FUN_24BRES         0x2000000000000000ull
+#define XCT_FUN_40BRES         0x3000000000000000ull
+#define XCT_FUN_I              0x0800000000000000ull
+#define XCT_FUN_O              0x0400000000000000ull
+#define XCT_FUN_E              0x0200000000000000ull
+#define XCT_FUN_FUN_S          54
+#define XCT_FUN_FUN_M          0x01c0000000000000ull
+#define XCT_FUN_FUN(num)       ((((long)(num)) << XCT_FUN_FUN_S) & \
+                               XCT_FUN_FUN_M)
+#define XCT_FUN_CRM_NOP                0x0000000000000000ull
+#define XCT_FUN_CRM_SIG                0x0008000000000000ull
+#define XCT_FUN_CRM_ENC                0x0010000000000000ull
+#define XCT_FUN_CRM_DEC                0x0018000000000000ull
+#define XCT_FUN_CRM_SIG_ENC    0x0020000000000000ull
+#define XCT_FUN_CRM_ENC_SIG    0x0028000000000000ull
+#define XCT_FUN_CRM_SIG_DEC    0x0030000000000000ull
+#define XCT_FUN_CRM_DEC_SIG    0x0038000000000000ull
+#define XCT_FUN_LLEN_M         0x0007ffff00000000ull
+#define XCT_FUN_LLEN_S         32ULL
+#define XCT_FUN_LLEN(x)                ((((long)(x)) << XCT_FUN_LLEN_S) & \
+                                XCT_FUN_LLEN_M)
+#define XCT_FUN_SHL_M          0x00000000f8000000ull
+#define XCT_FUN_SHL_S          27ull
+#define XCT_FUN_SHL(x)         ((((long)(x)) << XCT_FUN_SHL_S) & \
+                                XCT_FUN_SHL_M)
+#define XCT_FUN_CHL_M          0x0000000007c00000ull
+#define XCT_FUN_CHL_S          22ull
+#define XCT_FUN_CHL(x)         ((((long)(x)) << XCT_FUN_CHL_S) & \
+                                XCT_FUN_CHL_M)
+#define XCT_FUN_HSZ_M          0x00000000003c0000ull
+#define XCT_FUN_HSZ_S          18ull
+#define XCT_FUN_HSZ(x)         ((((long)(x)) << XCT_FUN_HSZ_S) & \
+                                XCT_FUN_HSZ_M)
+#define XCT_FUN_ALG_DES                0x0000000000000000ull
+#define XCT_FUN_ALG_3DES       0x0000000000008000ull
+#define XCT_FUN_ALG_AES                0x0000000000010000ull
+#define XCT_FUN_ALG_ARC                0x0000000000018000ull
+#define XCT_FUN_ALG_KASUMI     0x0000000000020000ull
+#define XCT_FUN_BCM_ECB                0x0000000000000000ull
+#define XCT_FUN_BCM_CBC                0x0000000000001000ull
+#define XCT_FUN_BCM_CFB                0x0000000000002000ull
+#define XCT_FUN_BCM_OFB                0x0000000000003000ull
+#define XCT_FUN_BCM_CNT                0x0000000000003800ull
+#define XCT_FUN_BCM_KAS_F8     0x0000000000002800ull
+#define XCT_FUN_BCM_KAS_F9     0x0000000000001800ull
+#define XCT_FUN_BCP_NO_PAD     0x0000000000000000ull
+#define XCT_FUN_BCP_ZRO                0x0000000000000200ull
+#define XCT_FUN_BCP_PL         0x0000000000000400ull
+#define XCT_FUN_BCP_INCR       0x0000000000000600ull
+#define XCT_FUN_SIG_MD5                (0ull << 4)
+#define XCT_FUN_SIG_SHA1       (2ull << 4)
+#define XCT_FUN_SIG_HMAC_MD5   (8ull << 4)
+#define XCT_FUN_SIG_HMAC_SHA1  (10ull << 4)
+#define XCT_FUN_A              0x0000000000000008ull
+#define XCT_FUN_C              0x0000000000000004ull
+#define XCT_FUN_AL2            0x0000000000000002ull
+#define XCT_FUN_SE             0x0000000000000001ull
+
+#define XCT_FUN_SRC_PTR(len, addr)     (XCT_PTR_LEN(len) | XCT_PTR_ADDR(addr))
+#define XCT_FUN_DST_PTR(len, addr)     (XCT_FUN_SRC_PTR(len, addr) | \
+                                       0x8000000000000000ull)
+
+#define XCT_CTRL_HDR_FUN_NUM_M         0x01c0000000000000ull
+#define XCT_CTRL_HDR_FUN_NUM_S         54
+#define XCT_CTRL_HDR_LEN_M             0x0007ffff00000000ull
+#define XCT_CTRL_HDR_LEN_S             32
+#define XCT_CTRL_HDR_REG_M             0x00000000000000ffull
+#define XCT_CTRL_HDR_REG_S             0
+
+#define XCT_CTRL_HDR(funcN,len,reg)    (0x9400000000000000ull | \
+                       ((((long)(funcN)) << XCT_CTRL_HDR_FUN_NUM_S) \
+                       & XCT_CTRL_HDR_FUN_NUM_M) | \
+                       ((((long)(len)) << \
+                       XCT_CTRL_HDR_LEN_S) & XCT_CTRL_HDR_LEN_M) | \
+                       ((((long)(reg)) << \
+                       XCT_CTRL_HDR_REG_S) & XCT_CTRL_HDR_REG_M))
+
+/* Function config command options */
+#define        DMA_CALGO_DES                   0x00
+#define        DMA_CALGO_3DES                  0x01
+#define        DMA_CALGO_AES                   0x02
+#define        DMA_CALGO_ARC                   0x03
+
+#define DMA_FN_CIV0                    0x02
+#define DMA_FN_CIV1                    0x03
+#define DMA_FN_HKEY0                   0x0a
+
+#define XCT_PTR_ADDR_LEN(ptr)          ((ptr) & XCT_PTR_ADDR_M), \
+                       (((ptr) & XCT_PTR_LEN_M) >> XCT_PTR_LEN_S)
+
+#endif /* PASEMI_FNU_H */