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| author | Noa Osherovich <noaos@mellanox.com> | 2017-10-17 18:01:13 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-10-25 14:03:44 -0400 |
| commit | ccc8708790273811db24676223b040710793cba7 (patch) | |
| tree | 8f3802224ad7a562cec701700750f6b037549496 /include/uapi/rdma/mlx5-abi.h | |
| parent | b4f34597a5ce148b88a47da621037537c384d565 (diff) | |
| download | lwn-ccc8708790273811db24676223b040710793cba7.tar.gz lwn-ccc8708790273811db24676223b040710793cba7.zip | |
IB/mlx5: Allow creation of a multi-packet RQ
Allow creation of a multi-packet receive queue.
In order to create a multi-packet RQ, the following fields in
the mlx5_ib_rwq should be set:
- log_num_strides: Log of number of strides per WQE
- single_stride_log_num_of_bytes: Log of a single stride size
- two_byte_shift_en: When enabled, hardware pads 2 bytes of zeros
before writing the message to memory (e.g. for the IP alignment).
Signed-off-by: Noa Osherovich <noaos@mellanox.com>
Reviewed-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/uapi/rdma/mlx5-abi.h')
| -rw-r--r-- | include/uapi/rdma/mlx5-abi.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h index 0832d9502200..b1d5b87ba3fd 100644 --- a/include/uapi/rdma/mlx5-abi.h +++ b/include/uapi/rdma/mlx5-abi.h @@ -308,6 +308,10 @@ struct mlx5_ib_alloc_mw { __u16 reserved2; }; +enum mlx5_ib_create_wq_mask { + MLX5_IB_CREATE_WQ_STRIDING_RQ = (1 << 0), +}; + struct mlx5_ib_create_wq { __u64 buf_addr; __u64 db_addr; @@ -316,7 +320,9 @@ struct mlx5_ib_create_wq { __u32 user_index; __u32 flags; __u32 comp_mask; - __u32 reserved; + __u32 single_stride_log_num_of_bytes; + __u32 single_wqe_log_num_of_strides; + __u32 two_byte_shift_en; }; struct mlx5_ib_create_ah_resp { |