Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-14 16:12:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

net/mlx4_en: Notify user when TX ring in error state

Browse Source 
When hardware gets into error state, must notify user about it.
When QP in error state no traffic will be tx'ed from the attached
tx_ring.

Driver should know how to recover from this unexpected state. I will send later
on the recovery flow, but having the print shouldn't be delayed.

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amir Vadai 2013-08-21 10:08:57 +03:00 committed by David S. Miller
parent 0e316f1b9b
commit bd2f631d7c
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/ethernet/mellanox/mlx4/en_tx.c
View File

@ -362,6 +362,15 @@ static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
*/
rmb();
if (unlikely((cqe->owner_sr_opcode & MLX4_CQE_OPCODE_MASK) ==
MLX4_CQE_OPCODE_ERROR)) {
struct mlx4_err_cqe *cqe_err = (struct mlx4_err_cqe *)cqe;
en_err(priv, "CQE error - vendor syndrome: 0x%x syndrome: 0x%x\n",
cqe_err->vendor_err_syndrome,
cqe_err->syndrome);
}
/* Skip over last polled CQE */
new_index = be16_to_cpu(cqe->wqe_index) & size_mask;