diff options
Diffstat (limited to 'drivers/net/ucc_geth.c')
| -rw-r--r-- | drivers/net/ucc_geth.c | 37 |
1 files changed, 29 insertions, 8 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c index fa25dc1fcdf1..6ebefe951b95 100644 --- a/drivers/net/ucc_geth.c +++ b/drivers/net/ucc_geth.c @@ -3355,13 +3355,17 @@ static int ucc_geth_startup(struct ucc_geth_private *ugeth) return 0; } -/* ucc_geth_timeout gets called when a packet has not been - * transmitted after a set amount of time. - * For now, assume that clearing out all the structures, and - * starting over will fix the problem. */ -static void ucc_geth_timeout(struct net_device *dev) +static int ucc_geth_close(struct net_device *dev); +static int ucc_geth_open(struct net_device *dev); + +/* Reopen device. This will reset the MAC and PHY. */ +static void ucc_geth_timeout_work(struct work_struct *work) { - struct ucc_geth_private *ugeth = netdev_priv(dev); + struct ucc_geth_private *ugeth; + struct net_device *dev; + + ugeth = container_of(work, struct ucc_geth_private, timeout_work); + dev = ugeth->dev; ugeth_vdbg("%s: IN", __func__); @@ -3370,13 +3374,29 @@ static void ucc_geth_timeout(struct net_device *dev) ugeth_dump_regs(ugeth); if (dev->flags & IFF_UP) { - ucc_geth_stop(ugeth); - ucc_geth_startup(ugeth); + /* + * Must reset MAC *and* PHY. This is done by reopening + * the device. + */ + ucc_geth_close(dev); + ucc_geth_open(dev); } netif_tx_schedule_all(dev); } +/* + * ucc_geth_timeout gets called when a packet has not been + * transmitted after a set amount of time. + */ +static void ucc_geth_timeout(struct net_device *dev) +{ + struct ucc_geth_private *ugeth = netdev_priv(dev); + + netif_carrier_off(dev); + schedule_work(&ugeth->timeout_work); +} + /* This is called by the kernel when a frame is ready for transmission. */ /* It is pointed to by the dev->hard_start_xmit function pointer */ static int ucc_geth_start_xmit(struct sk_buff *skb, struct net_device *dev) @@ -4027,6 +4047,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma dev->hard_start_xmit = ucc_geth_start_xmit; dev->tx_timeout = ucc_geth_timeout; dev->watchdog_timeo = TX_TIMEOUT; + INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work); netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT); #ifdef CONFIG_NET_POLL_CONTROLLER dev->poll_controller = ucc_netpoll; |