From 3078f5f1bd8b6c8aef77b8ef4d49671fa6eb058e Mon Sep 17 00:00:00 2001 From: Guy Levi Date: Tue, 4 Jul 2017 16:24:26 +0300 Subject: IB/mlx4: Add support for RSS QP Add support to work with a RSS QP by using an indirection table object upon QP creation. Other related QP verbs (e.g. modify/destroy/query) were updated as well for that QP mode. Notes: - The RX hash properties are supplied as driver private data. - The RSS QP port is used on the associated WQs in its indirection table. Applying different ports during WQ life time is not allowed. - The expected RSS QP flow is: create, modify(RST->INIT), modify(RST->RTR), destroy. Signed-off-by: Guy Levi Reviewed-by: Yishai Hadas Signed-off-by: Leon Romanovsky Signed-off-by: Doug Ledford --- include/uapi/rdma/mlx4-abi.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/rdma/mlx4-abi.h b/include/uapi/rdma/mlx4-abi.h index 5591d955ba00..d915cab37ec3 100644 --- a/include/uapi/rdma/mlx4-abi.h +++ b/include/uapi/rdma/mlx4-abi.h @@ -95,6 +95,16 @@ struct mlx4_ib_create_srq_resp { __u32 reserved; }; +struct mlx4_ib_create_qp_rss { + __u64 rx_hash_fields_mask; + __u8 rx_hash_function; + __u8 rx_key_len; + __u8 reserved[6]; + __u8 rx_hash_key[40]; + __u32 comp_mask; + __u32 reserved1; +}; + struct mlx4_ib_create_qp { __u64 buf_addr; __u64 db_addr; @@ -123,4 +133,27 @@ struct mlx4_ib_create_rwq_ind_tbl_resp { __u32 response_length; __u32 reserved; }; + +/* RX Hash function flags */ +enum mlx4_ib_rx_hash_function_flags { + MLX4_IB_RX_HASH_FUNC_TOEPLITZ = 1 << 0, +}; + +/* + * RX Hash flags, these flags allows to set which incoming packet's field should + * participates in RX Hash. Each flag represent certain packet's field, + * when the flag is set the field that is represented by the flag will + * participate in RX Hash calculation. + */ +enum mlx4_ib_rx_hash_fields { + MLX4_IB_RX_HASH_SRC_IPV4 = 1 << 0, + MLX4_IB_RX_HASH_DST_IPV4 = 1 << 1, + MLX4_IB_RX_HASH_SRC_IPV6 = 1 << 2, + MLX4_IB_RX_HASH_DST_IPV6 = 1 << 3, + MLX4_IB_RX_HASH_SRC_PORT_TCP = 1 << 4, + MLX4_IB_RX_HASH_DST_PORT_TCP = 1 << 5, + MLX4_IB_RX_HASH_SRC_PORT_UDP = 1 << 6, + MLX4_IB_RX_HASH_DST_PORT_UDP = 1 << 7 +}; + #endif /* MLX4_ABI_USER_H */ -- cgit v1.2.3