From 3a32b26a4eccb37435d81bf75e41b2bd4464f8d6 Mon Sep 17 00:00:00 2001 From: Eran Ben Elisha Date: Wed, 13 Dec 2017 13:04:01 +0200 Subject: [PATCH] net/mlx5e: Add Event Queue meta data info for TX timeout logs 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 Reviewed-by: Tariq Toukan Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index 12196d4..71b8b17 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -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)) -- 2.7.4