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authorNoa Osherovich <noaos@mellanox.com>2017-10-17 18:01:13 +0300
committerDoug Ledford <dledford@redhat.com>2017-10-25 14:03:44 -0400
commitccc8708790273811db24676223b040710793cba7 (patch)
tree8f3802224ad7a562cec701700750f6b037549496 /include/uapi/rdma
parentb4f34597a5ce148b88a47da621037537c384d565 (diff)
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')
-rw-r--r--include/uapi/rdma/mlx5-abi.h8
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 {

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