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authorYevgeny Kliteynik <kliteyn@nvidia.com>2020-09-24 19:58:50 +0200
committerSaeed Mahameed <saeedm@nvidia.com>2021-08-27 00:38:00 +0200
commitec449ed8230cd30769de3cb70ee0fce293047372 (patch)
treef6e647cfd05931a7d7bd2e85d09186b4907d247c /drivers
parentnet/mlx5: DR, Enable VLAN pop on TX and VLAN push on RX (diff)
downloadlinux-ec449ed8230cd30769de3cb70ee0fce293047372.tar.xz
linux-ec449ed8230cd30769de3cb70ee0fce293047372.zip
net/mlx5: DR, Enable QP retransmission
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
index 8a1623a4d8bc..24f40e17f176 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c
@@ -620,6 +620,7 @@ static int dr_cmd_modify_qp_rtr2rts(struct mlx5_core_dev *mdev,
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 */
MLX5_SET(rtr2rts_qp_in, in, opcode, MLX5_CMD_OP_RTR2RTS_QP);
MLX5_SET(rtr2rts_qp_in, in, qpn, dr_qp->qpn);