android/android_kernel_asus_sm8350
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

net/mlx5: DR, Enable QP retransmission

Browse Source 
[ Upstream commit ec449ed8230cd30769de3cb70ee0fce293047372 ]

Under high stress, SW steering might get stuck on polling for completion
that never comes.
For such cases QP needs to have protocol retransmission mechanism enabled.
Currently the retransmission timeout is defined as 0 (unlimited). Fix this
by defining a real timeout.

Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Alex Vesker <valex@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yevgeny Kliteynik 2020-09-24 20:58:50 +03:00 committed by Greg Kroah-Hartman
parent c9095f788d
commit c30ea33b03
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
View File

@ -603,6 +603,7 @@ static int dr_cmd_modify_qp_rtr2rts(struct mlx5_core_dev *mdev,
MLX5_SET(qpc, qpc, log_ack_req_freq, 0);
MLX5_SET(qpc, qpc, retry_count, attr->retry_cnt);
MLX5_SET(qpc, qpc, rnr_retry, attr->rnr_retry);
MLX5_SET(qpc, qpc, primary_address_path.ack_timeout, 0x8); /* ~1ms */
return mlx5_core_qp_modify(mdev, MLX5_CMD_OP_RTR2RTS_QP, 0, qpc,
&dr_qp->mqp);