Commit ec449ed8 authored by Yevgeny Kliteynik's avatar Yevgeny Kliteynik Committed by Saeed Mahameed
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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: default avatarYevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: default avatarAlex Vesker <valex@nvidia.com>
Signed-off-by: default avatarSaeed Mahameed <saeedm@nvidia.com>
parent 2de40f68

drivers/net/ethernet/mellanox/mlx5/core/steering/dr_send.c

+1 −0
Original line number Diff line number Diff line
@@ -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);