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net/mlx5e: Print delta since last transmit per SQ upon TX timeout

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When driver callback for TX timeout is being called, it handles all
stopped xmit queues (not only the ones which their timeout expired).
Add usecs since last transmit to TX timeout logs per send queue in order
to monitor if the queue timeout expired.

Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Eran Ben Elisha 2017-12-20 11:31:28 +02:00 committed by Saeed Mahameed
parent eb9180f792
commit 8499094526
1 changed files with 5 additions and 3 deletions
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8
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -3766,14 +3766,16 @@ static void mlx5e_tx_timeout(struct net_device *dev)
netdev_err(dev, "TX timeout detected\n");
for (i = 0; i < priv->channels.num * priv->channels.params.num_tc; i++) {
struct netdev_queue *dev_queue = netdev_get_tx_queue(dev, i);
struct mlx5e_txqsq *sq = priv->txq2sq[i];
if (!netif_xmit_stopped(netdev_get_tx_queue(dev, i)))
if (!netif_xmit_stopped(dev_queue))
continue;
sched_work = true;
clear_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x\n",
i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc);
netdev_err(dev, "TX timeout on queue: %d, SQ: 0x%x, CQ: 0x%x, SQ Cons: 0x%x SQ Prod: 0x%x, usecs since last trans: %u\n",
i, sq->sqn, sq->cq.mcq.cqn, sq->cc, sq->pc,
jiffies_to_usecs(jiffies - dev_queue->trans_start));
}
if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))