diff options
| author | Mark Zhang <markz@mellanox.com> | 2019-11-15 17:45:55 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-11-19 16:05:41 -0400 |
| commit | c16339b69c0d58f456154b43fc396b1f1c3dc055 (patch) | |
| tree | 54d953ba52e5dd34df4f3ae41dd78d14d79aab44 /drivers/infiniband/hw/mlx5/main.c | |
| parent | ff3195b3ed85d0068fb9a80eaa2a1471a04df76a (diff) | |
IB/mlx5: Support extended number of strides for Striding RQ
Extends the minimum single WQE strides from 64 to 8, which is exposed
by the "min_single_wqe_log_num_of_strides" field of striding_rq_caps.
Choose right number of strides based on FW capability.
Link: https://lore.kernel.org/r/20191115154555.247856-1-leon@kernel.org
Signed-off-by: Mark Zhang <markz@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/main.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 2a510de4ae0f..4ced72185172 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1149,8 +1149,14 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, MLX5_MIN_SINGLE_STRIDE_LOG_NUM_BYTES; resp.striding_rq_caps.max_single_stride_log_num_of_bytes = MLX5_MAX_SINGLE_STRIDE_LOG_NUM_BYTES; - resp.striding_rq_caps.min_single_wqe_log_num_of_strides = - MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES; + if (MLX5_CAP_GEN(dev->mdev, ext_stride_num_range)) + resp.striding_rq_caps + .min_single_wqe_log_num_of_strides = + MLX5_EXT_MIN_SINGLE_WQE_LOG_NUM_STRIDES; + else + resp.striding_rq_caps + .min_single_wqe_log_num_of_strides = + MLX5_MIN_SINGLE_WQE_LOG_NUM_STRIDES; resp.striding_rq_caps.max_single_wqe_log_num_of_strides = MLX5_MAX_SINGLE_WQE_LOG_NUM_STRIDES; resp.striding_rq_caps.supported_qpts = |