ag71xx driver: handle TX timout

[librecmc/librecmc.git] / target / linux / ar71xx / files / drivers / net / ag71xx / ag71xx_main.c

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 87f83d0cd123d03d61f38cd857e531bff2cf6097..78189693553a20350872125018a8118452e207d7 100644 (file)
--- 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))