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net/mlx5e: Cancel DIM work on close SQ

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TXQ SQ closure is followed by closing the corresponding CQ. A pending
DIM work would try to modify the now non-existing CQ.
This would trigger an error:
[85535.835926] mlx5_core 0000:af:00.0: mlx5_cmd_check:769:(pid 124399):
MODIFY_CQ(0x403) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0x1d7771)

Fix by making sure to cancel any pending DIM work before destroying the SQ.

Fixes: cbce4f4447 ("net/mlx5e: Enable adaptive-TX moderation")
Signed-off-by: Tal Gilboa <talgi@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Tal Gilboa 2018-11-22 14:20:45 +02:00 committed by Saeed Mahameed
parent d13b224f43
commit fa2bf86bab
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/mellanox/mlx5/core/en_main.c
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@ -1401,6 +1401,7 @@ static void mlx5e_close_txqsq(struct mlx5e_txqsq *sq)
struct mlx5_core_dev *mdev = c->mdev;
struct mlx5_rate_limit rl = {0};
cancel_work_sync(&sq->dim.work);
mlx5e_destroy_sq(mdev, sq->sqn);
if (sq->rate_limit) {
rl.rate = sq->rate_limit;