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| author | Bodong Wang <bodong@mellanox.com> | 2018-03-19 15:10:30 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-03-19 11:55:13 -0600 |
| commit | 61147f391a8b3bdde4c0a631dd132d85d00b90a0 (patch) | |
| tree | b1903a6114f819a005700f08c989d9d1eb4cce09 /include/uapi | |
| parent | 05d3ac978ed25b753bfe34fe76c50c31ee506a82 (diff) | |
| download | linux-stable-61147f391a8b3bdde4c0a631dd132d85d00b90a0.tar.gz linux-stable-61147f391a8b3bdde4c0a631dd132d85d00b90a0.tar.bz2 linux-stable-61147f391a8b3bdde4c0a631dd132d85d00b90a0.zip | |
IB/mlx5: Packet packing enhancement for RAW QP
Enable RAW QP to be able to configure burst control by modify_qp. By
using burst control with rate limiting, user can achieve best
performance and accuracy. The burst control information is passed by
user through udata.
This patch also reports burst control capability for mlx5 related
hardwares, burst control is only marked as supported when both
packet_pacing_burst_bound and packet_pacing_typical_size are
supported.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/rdma/mlx5-abi.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h index 1111aa4e7c1e..d2e0d234704f 100644 --- a/include/uapi/rdma/mlx5-abi.h +++ b/include/uapi/rdma/mlx5-abi.h @@ -163,6 +163,10 @@ struct mlx5_ib_cqe_comp_caps { __u32 supported_format; /* enum mlx5_ib_cqe_comp_res_format */ }; +enum mlx5_ib_packet_pacing_cap_flags { + MLX5_IB_PP_SUPPORT_BURST = 1 << 0, +}; + struct mlx5_packet_pacing_caps { __u32 qp_rate_limit_min; __u32 qp_rate_limit_max; /* In kpbs */ @@ -172,7 +176,8 @@ struct mlx5_packet_pacing_caps { * supported_qpts |= 1 << IB_QPT_RAW_PACKET */ __u32 supported_qpts; - __u32 reserved; + __u8 cap_flags; /* enum mlx5_ib_packet_pacing_cap_flags */ + __u8 reserved[3]; }; enum mlx5_ib_mpw_caps { @@ -362,6 +367,18 @@ struct mlx5_ib_create_ah_resp { __u8 reserved[6]; }; +struct mlx5_ib_burst_info { + __u32 max_burst_sz; + __u16 typical_pkt_sz; + __u16 reserved; +}; + +struct mlx5_ib_modify_qp { + __u32 comp_mask; + struct mlx5_ib_burst_info burst_info; + __u32 reserved; +}; + struct mlx5_ib_modify_qp_resp { __u32 response_length; __u32 dctn; |