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authorNoa Osherovich <noaos@mellanox.com>2017-10-17 18:01:12 +0300
committerDoug Ledford <dledford@redhat.com>2017-10-25 14:03:44 -0400
commitb4f34597a5ce148b88a47da621037537c384d565 (patch)
tree3a864e99cf31cdf01db976d334446e34621b4ff7 /include/uapi/rdma
parentb156269d88e43a93da424a463e57eb5e9ee5f3cd (diff)
IB/mlx5: Expose multi-packet RQ capabilities
This patch reports the device's striding RQ capabilities to the user-space: - min/max_single_stride_log_num_of_bytes: Log of min/max number of bytes in a single stride. - min/max_single_wqe_log_num_of_strides: Log of min/max number of strides in a single WQE. - supported_qpts: A bit mask to know which QP types support multi- packet RQ, for now only Raw Packet QPs. 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.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index 1791bf123ba9..0832d9502200 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -190,6 +190,19 @@ struct mlx5_ib_sw_parsing_caps {
__u32 supported_qpts;
};
+struct mlx5_ib_striding_rq_caps {
+ __u32 min_single_stride_log_num_of_bytes;
+ __u32 max_single_stride_log_num_of_bytes;
+ __u32 min_single_wqe_log_num_of_strides;
+ __u32 max_single_wqe_log_num_of_strides;
+
+ /* Corresponding bit will be set if qp type from
+ * 'enum ib_qp_type' is supported, e.g.
+ * supported_qpts |= 1 << IB_QPT_RAW_PACKET
+ */
+ __u32 supported_qpts;
+};
+
struct mlx5_ib_query_device_resp {
__u32 comp_mask;
__u32 response_length;
@@ -200,6 +213,7 @@ struct mlx5_ib_query_device_resp {
__u32 mlx5_ib_support_multi_pkt_send_wqes;
__u32 reserved;
struct mlx5_ib_sw_parsing_caps sw_parsing_caps;
+ struct mlx5_ib_striding_rq_caps striding_rq_caps;
};
struct mlx5_ib_create_cq {

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