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authorAya Levin <ayal@mellanox.com>2019-08-06 15:19:19 +0300
committerSaeed Mahameed <saeedm@mellanox.com>2019-08-08 13:01:20 -0700
commit276d197e70bcc47153592f4384675b51c7d83aba (patch)
tree4200d0046654352fd4013c6eedabe9fbac61b5cc /drivers/net/ethernet/mellanox
parentd9a2fcf53c76a7edb2bcf99e94507935561a83d5 (diff)
net/mlx5e: Fix error flow of CQE recovery on tx reporter
CQE recovery function begins with test and set of recovery bit. Add an error flow which ensures clearing of this bit when leaving the recovery function, to allow further recoveries to take place. This allows removal of clearing recovery bit on sq activate. Fixes: de8650a82071 ("net/mlx5e: Add tx reporter support") Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'drivers/net/ethernet/mellanox')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c12
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_main.c1
2 files changed, 8 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
index b307234b4e05..b91814ecfbc9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/reporter_tx.c
@@ -83,17 +83,17 @@ static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
if (err) {
netdev_err(dev, "Failed to query SQ 0x%x state. err = %d\n",
sq->sqn, err);
- return err;
+ goto out;
}
if (state != MLX5_SQC_STATE_ERR)
- return 0;
+ goto out;
mlx5e_tx_disable_queue(sq->txq);
err = mlx5e_wait_for_sq_flush(sq);
if (err)
- return err;
+ goto out;
/* At this point, no new packets will arrive from the stack as TXQ is
* marked with QUEUE_STATE_DRV_XOFF. In addition, NAPI cleared all
@@ -102,13 +102,17 @@ static int mlx5e_tx_reporter_err_cqe_recover(struct mlx5e_txqsq *sq)
err = mlx5e_sq_to_ready(sq, state);
if (err)
- return err;
+ goto out;
mlx5e_reset_txqsq_cc_pc(sq);
sq->stats->recover++;
+ clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
mlx5e_activate_txqsq(sq);
return 0;
+out:
+ clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
+ return err;
}
static int mlx5_tx_health_report(struct devlink_health_reporter *tx_reporter,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index 6c712c5be4d8..9d5f6e56188f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -1321,7 +1321,6 @@ err_free_txqsq:
void mlx5e_activate_txqsq(struct mlx5e_txqsq *sq)
{
sq->txq = netdev_get_tx_queue(sq->channel->netdev, sq->txq_ix);
- clear_bit(MLX5E_SQ_STATE_RECOVERING, &sq->state);
set_bit(MLX5E_SQ_STATE_ENABLED, &sq->state);
netdev_tx_reset_queue(sq->txq);
netif_tx_start_queue(sq->txq);