diff options
| author | Or Har-Toov <ohartoov@nvidia.com> | 2023-03-19 13:59:31 +0100 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-03-23 09:21:13 +0100 |
| commit | 742948cc02d5230ef81546556502a05a90f89bbb (patch) | |
| tree | 2cd2325e9915f3546cf4a06f7f3a602f084e4a9c /drivers | |
| parent | net/mlx5: Expose bits for enabling out-of-order by default (diff) | |
| download | linux-742948cc02d5230ef81546556502a05a90f89bbb.tar.xz linux-742948cc02d5230ef81546556502a05a90f89bbb.zip | |
RDMA/mlx5: Disable out-of-order in integrity enabled QPs
Set retry_mode to GO_BACK_N when qp is created with INTEGRITY_EN flag
because out-of-order is not supported when doing HW offload of signature
operations.
Signed-off-by: Or Har-Toov <ohartoov@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/362de42cdc7a541afa5b1fd0ec6ae706061764a2.1679230449.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 7cc3b973dec7..0fdbf79a3e81 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -60,6 +60,10 @@ enum raw_qp_set_mask_map { MLX5_RAW_QP_RATE_LIMIT = 1UL << 1, }; +enum { + MLX5_QP_RM_GO_BACK_N = 0x1, +}; + struct mlx5_modify_raw_qp_param { u16 operation; @@ -2519,6 +2523,10 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, if (qp->flags & IB_QP_CREATE_IPOIB_UD_LSO) MLX5_SET(qpc, qpc, ulp_stateless_offload_mode, 1); + if (qp->flags & IB_QP_CREATE_INTEGRITY_EN && + MLX5_CAP_GEN(mdev, go_back_n)) + MLX5_SET(qpc, qpc, retry_mode, MLX5_QP_RM_GO_BACK_N); + err = mlx5_qpc_create_qp(dev, &base->mqp, in, inlen, out); kvfree(in); if (err) |