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net/mlx5e: Add Event Queue meta data info for TX timeout logs

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When TX timeout occurs, EQ consumer index and irqn can help in debug for
understanding the SW state of EQ. Add them to the logger prints for the
relevant EQ only.

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
2017-12-13 13:04:01 +02:00
committed by Saeed Mahameed
parent 8499094526
commit 3a32b26a4e
1 changed files with 12 additions and 0 deletions
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12
drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@@ -3768,6 +3768,9 @@ static void mlx5e_tx_timeout(struct net_device *dev)
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];
struct mlx5_core_dev *mdev = priv->mdev;
int irqn_not_used, eqn;
struct mlx5_eq *eq;
if (!netif_xmit_stopped(dev_queue))
continue;
@@ -3776,6 +3779,15 @@ static void mlx5e_tx_timeout(struct net_device *dev)
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 (mlx5_vector2eqn(mdev, sq->cq.mcq.vector, &eqn,
&irqn_not_used))
continue;
eq = mlx5_eqn2eq(mdev, eqn);
if (!IS_ERR(eq))
netdev_err(dev, "EQ 0x%x: Cons = 0x%x, irqn = 0x%x\n",
eqn, eq->cons_index, eq->irqn);
}
if (sched_work && test_bit(MLX5E_STATE_OPENED, &priv->state))