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authorLendacky, Thomas <Thomas.Lendacky@amd.com>2015-04-09 12:12:03 -0500
committerDavid S. Miller <davem@davemloft.net>2015-04-09 17:35:37 -0400
commita8373f1a60d0716e25f5c4cd4d6e3909bfdb41bd (patch)
tree151a992115b3e39a98463e81af367312cbfbf78b /drivers
parentb876382bac0fe2ed1129247c47029799bb4d763a (diff)
amd-xgbe: Add support for the netdev Tx watchdog
Add support to be able to detect a hung Tx task by adding the netdev ndo_tx_timeout function callback. Do not set the watchdog_timeo value so as to use the system default time (currently 5 seconds). Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-drv.c9
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-main.c3
2 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index e10abc7db447..db84ddcfec84 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -1600,6 +1600,14 @@ static int xgbe_change_mtu(struct net_device *netdev, int mtu)
return 0;
}
+static void xgbe_tx_timeout(struct net_device *netdev)
+{
+ struct xgbe_prv_data *pdata = netdev_priv(netdev);
+
+ netdev_warn(netdev, "tx timeout, device restarting\n");
+ schedule_work(&pdata->restart_work);
+}
+
static struct rtnl_link_stats64 *xgbe_get_stats64(struct net_device *netdev,
struct rtnl_link_stats64 *s)
{
@@ -1764,6 +1772,7 @@ static const struct net_device_ops xgbe_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = xgbe_ioctl,
.ndo_change_mtu = xgbe_change_mtu,
+ .ndo_tx_timeout = xgbe_tx_timeout,
.ndo_get_stats64 = xgbe_get_stats64,
.ndo_vlan_rx_add_vid = xgbe_vlan_rx_add_vid,
.ndo_vlan_rx_kill_vid = xgbe_vlan_rx_kill_vid,
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 2e4c22d94a6b..714905384900 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -491,6 +491,9 @@ static int xgbe_probe(struct platform_device *pdev)
netdev->priv_flags |= IFF_UNICAST_FLT;
+ /* Use default watchdog timeout */
+ netdev->watchdog_timeo = 0;
+
xgbe_init_rx_coalesce(pdata);
xgbe_init_tx_coalesce(pdata);