Previously, all VLANs (port-based or 802.1q) were sharing

a single database in the ATU. This created problems in the
case of a system where two ports/devices share a MAC address
(e.g. Linksys WRT1900AC eth0/eth1).

This also clears any bootloader-set FDB defaults. This had
caused issues creating port-based VLANs when mappings
overlapped previous VLANs. Packets destined to a port
not in the default port group flooded all ports.

Tested on a 88E6171 (Linksys EA4500) and 88E6172 ('1900AC)

Signed-off-by: Claudio Leite <leitec@staticky.com>
Signed-off-by: Imre Kaloz <kaloz@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46699 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/generic/files/drivers/net/phy/mvsw61xx.c b/target/linux/generic/files/drivers/net/phy/mvsw61xx.c
index 116f6cf..9417fd4 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/mvsw61xx.c
+++ b/target/linux/generic/files/drivers/net/phy/mvsw61xx.c
@@ -493,7 +493,7 @@ static int mvsw61xx_vtu_program(struct switch_dev *dev)
                sw16(dev, MV_GLOBALREG(VTU_VID),
                                MV_VTU_VID_VALID | state->vlans[i].vid);
                sw16(dev, MV_GLOBALREG(VTU_SID), i);
-               sw16(dev, MV_GLOBALREG(VTU_FID), 0);
+               sw16(dev, MV_GLOBALREG(VTU_FID), i);
                sw16(dev, MV_GLOBALREG(VTU_DATA1), v1);
                sw16(dev, MV_GLOBALREG(VTU_DATA2), v2);
                sw16(dev, MV_GLOBALREG(VTU_DATA3), 0);
@@ -521,8 +521,10 @@ static void mvsw61xx_vlan_port_config(struct switch_dev *dev, int vno)
                if(mode != MV_VTUCTL_EGRESS_TAGGED)
                        state->ports[i].pvid = state->vlans[vno].vid;
 
-               if (state->vlans[vno].port_based)
+               if (state->vlans[vno].port_based) {
                        state->ports[i].mask |= state->vlans[vno].mask;
+                       state->ports[i].fdb = vno;
+               }
                else
                        state->ports[i].qmode = MV_8021Q_MODE_SECURE;
        }
@@ -579,8 +581,14 @@ static int mvsw61xx_update_state(struct switch_dev *dev)
 
                state->ports[i].mask &= ~(1 << i);
 
-               reg = sr16(dev, MV_PORTREG(VLANMAP, i)) & ~MV_PORTS_MASK;
-               reg |= state->ports[i].mask;
+               /* set default forwarding DB number and port mask */
+               reg = sr16(dev, MV_PORTREG(CONTROL1, i)) & ~MV_FDB_HI_MASK;
+               reg |= (state->ports[i].fdb >> MV_FDB_HI_SHIFT) &
+                       MV_FDB_HI_MASK;
+               sw16(dev, MV_PORTREG(CONTROL1, i), reg);
+
+               reg = ((state->ports[i].fdb & 0xf) << MV_FDB_LO_SHIFT) |
+                       state->ports[i].mask;
                sw16(dev, MV_PORTREG(VLANMAP, i), reg);
 
                reg = sr16(dev, MV_PORTREG(CONTROL2, i)) &
@@ -620,6 +628,7 @@ static int mvsw61xx_reset(struct switch_dev *dev)
                return -ETIMEDOUT;
 
        for (i = 0; i < dev->ports; i++) {
+               state->ports[i].fdb = 0;
                state->ports[i].qmode = 0;
                state->ports[i].mask = 0;
                state->ports[i].pvid = 0;

diff --git a/target/linux/generic/files/drivers/net/phy/mvsw61xx.h b/target/linux/generic/files/drivers/net/phy/mvsw61xx.h
index 61e134c..dbc6c92 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/mvsw61xx.h
+++ b/target/linux/generic/files/drivers/net/phy/mvsw61xx.h
@@ -224,6 +224,11 @@ enum {
 
 #define MV_PVID_MASK                   0x0fff
 
+#define MV_FDB_HI_MASK                 0x00ff
+#define MV_FDB_LO_MASK                 0xf000
+#define MV_FDB_HI_SHIFT                        4
+#define MV_FDB_LO_SHIFT                        12
+
 struct mvsw61xx_state {
        struct switch_dev dev;
        struct mii_bus *bus;
@@ -238,6 +243,7 @@ struct mvsw61xx_state {
 
        int vlan_enabled;
        struct port_state {
+               u16 fdb;
                u16 pvid;
                u16 mask;
                u8 qmode;