[ar71xx] ag71xx driver: handle TX timout

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13537 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 25 insertions, 1 deletions

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
index 7e3da8178..d5f7743d4 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx.h
@@ -28,6 +28,7 @@
 #include <linux/phy.h>
 #include <linux/skbuff.h>
 #include <linux/dma-mapping.h>
+#include <linux/workqueue.h>
 
 #include <linux/bitops.h>
 
@@ -37,7 +38,7 @@
 #define ETH_FCS_LEN	4
 
 #define AG71XX_DRV_NAME		"ag71xx"
-#define AG71XX_DRV_VERSION	"0.5.10"
+#define AG71XX_DRV_VERSION	"0.5.11"
 
 #define AG71XX_NAPI_WEIGHT	64
 
@@ -124,6 +125,8 @@ struct ag71xx {
 	unsigned int		link;
 	unsigned int		speed;
 	int 			duplex;
+
+	struct work_struct	restart_work;
 };
 
 extern struct ethtool_ops ag71xx_ethtool_ops;
diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
index 87f83d0cd..781896935 100644
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_main.c
@@ -551,6 +551,24 @@ static int ag71xx_do_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	return -EOPNOTSUPP;
 }
 
+static void ag71xx_tx_timeout(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	if (netif_msg_tx_err(ag))
+		printk(KERN_DEBUG "%s: tx timeout\n", ag->dev->name);
+
+	schedule_work(&ag->restart_work);
+}
+
+static void ag71xx_restart_work_func(struct work_struct *work)
+{
+	struct ag71xx *ag = container_of(work, struct ag71xx, restart_work);
+
+	ag71xx_stop(ag->dev);
+	ag71xx_open(ag->dev);
+}
+
 static void ag71xx_tx_packets(struct ag71xx *ag)
 {
 	struct ag71xx_ring *ring = &ag->tx_ring;
@@ -824,6 +842,9 @@ static int __init ag71xx_probe(struct platform_device *pdev)
 	dev->do_ioctl = ag71xx_do_ioctl;
 	dev->ethtool_ops = &ag71xx_ethtool_ops;
 
+	dev->tx_timeout = ag71xx_tx_timeout;
+	INIT_WORK(&ag->restart_work, ag71xx_restart_work_func);
+
 	netif_napi_add(dev, &ag->napi, ag71xx_poll, AG71XX_NAPI_WEIGHT);
 
 	if (is_valid_ether_addr(pdata->mac_addr))