ag71xx: fix memory corruption issues on ar7240 on ethernet start/stop

[openwrt.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx.h

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index 30caaff..9dcbf4a 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -49,18 +49,16 @@
 #define AG71XX_INT_POLL        (AG71XX_INT_RX | AG71XX_INT_TX)
 #define AG71XX_INT_INIT        (AG71XX_INT_ERR | AG71XX_INT_POLL)
 
-#define AG71XX_TX_FIFO_LEN     2048
 #define AG71XX_TX_MTU_LEN      1540
 #define AG71XX_RX_PKT_RESERVE  64
 #define AG71XX_RX_PKT_SIZE     \
        (AG71XX_RX_PKT_RESERVE + ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN)
 
-#define AG71XX_TX_RING_SIZE    64
-#define AG71XX_TX_THRES_STOP   (AG71XX_TX_RING_SIZE - 4)
-#define AG71XX_TX_THRES_WAKEUP \
-               (AG71XX_TX_RING_SIZE - (AG71XX_TX_RING_SIZE / 4))
+#define AG71XX_TX_RING_SIZE_DEFAULT    64
+#define AG71XX_RX_RING_SIZE_DEFAULT    128
 
-#define AG71XX_RX_RING_SIZE    128
+#define AG71XX_TX_RING_SIZE_MAX                256
+#define AG71XX_RX_RING_SIZE_MAX                256
 
 #ifdef CONFIG_AG71XX_DEBUG
 #define DBG(fmt, args...)      printk(KERN_DEBUG fmt, ## args)
@@ -150,6 +148,9 @@ struct ag71xx {
        struct napi_struct      napi;
        u32                     msg_enable;
 
+       struct ag71xx_desc      *stop_desc;
+       dma_addr_t              stop_desc_dma;
+
        struct ag71xx_ring      rx_ring;
        struct ag71xx_ring      tx_ring;