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Merge branch 'mlx5-fixes' 

Saeed Mahameed says:

====================
mlx5 tx timeout watchdog fixes

This patch set provides two trivial fixes for the tx timeout series lately
applied into net 4.7.

From Daniel, detect stuck queues due to BQL
From Mohamad, fix tx timeout watchdog false alarm

Hopefully those two fixes will make it to -stable, assuming
3947ca1859 ('net/mlx5e: Implement ndo_tx_timeout callback') was also backported to -stable.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2016-07-13 11:38:17 -07:00
parent ea43f860d9 c3b7c5c950
commit 22cb99fb76
1 changed files with 12 additions and 1 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
View File

@ -1348,6 +1348,11 @@ static int mlx5e_open_channels(struct mlx5e_priv *priv)
goto err_close_channels;
}
/* FIXME: This is a W/A for tx timeout watch dog false alarm when
* polling for inactive tx queues.
*/
netif_tx_start_all_queues(priv->netdev);
kfree(cparam);
return 0;
@ -1367,6 +1372,12 @@ static void mlx5e_close_channels(struct mlx5e_priv *priv)
{
int i;
/* FIXME: This is a W/A only for tx timeout watch dog false alarm when
* polling for inactive tx queues.
*/
netif_tx_stop_all_queues(priv->netdev);
netif_tx_disable(priv->netdev);
for (i = 0; i < priv->params.num_channels; i++)
mlx5e_close_channel(priv->channel[i]);
@ -2656,7 +2667,7 @@ static void mlx5e_tx_timeout(struct net_device *dev)
for (i = 0; i < priv->params.num_channels * priv->params.num_tc; i++) {
struct mlx5e_sq *sq = priv->txq_to_sq_map[i];
if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
continue;
sched_work = true;
set_bit(MLX5E_SQ_STATE_TX_TIMEOUT, &sq->state);