diff options
| author | Maher Sanalla <msanalla@nvidia.com> | 2026-05-24 18:38:06 +0300 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-06-11 14:02:05 +0300 |
| commit | 1f307090e9575005ae3fc5cbb9d9520dcaf5086d (patch) | |
| tree | fbb463bdfe803fb3e8556129f1afcde32d69642a | |
| parent | 915bbc8578e3f784b35bd9e5fa06a3b0720eb292 (diff) | |
| download | linux-1f307090e9575005ae3fc5cbb9d9520dcaf5086d.tar.xz | |
RDMA/mlx5: Report packet pacing capabilities when querying device
When querying device, report packet pacing capabilities for UD and
UC QPs when device supports it.
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20260524-packet-pacing-v1-5-3d79439f8d08@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index a558ac5bb219..38b2481aaae1 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -1214,20 +1214,29 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, } } - if (offsetofend(typeof(resp), packet_pacing_caps) <= uhw_outlen && - raw_support) { - if (MLX5_CAP_QOS(mdev, packet_pacing) && - MLX5_CAP_GEN(mdev, qos)) { - resp.packet_pacing_caps.qp_rate_limit_max = - MLX5_CAP_QOS(mdev, packet_pacing_max_rate); - resp.packet_pacing_caps.qp_rate_limit_min = - MLX5_CAP_QOS(mdev, packet_pacing_min_rate); - resp.packet_pacing_caps.supported_qpts |= - 1 << IB_QPT_RAW_PACKET; - if (MLX5_CAP_QOS(mdev, packet_pacing_burst_bound) && - MLX5_CAP_QOS(mdev, packet_pacing_typical_size)) - resp.packet_pacing_caps.cap_flags |= - MLX5_IB_PP_SUPPORT_BURST; + if (offsetofend(typeof(resp), packet_pacing_caps) <= uhw_outlen) { + if (MLX5_CAP_GEN(mdev, qos)) { + if (MLX5_CAP_QOS(mdev, packet_pacing) && raw_support) + resp.packet_pacing_caps.supported_qpts |= + BIT(IB_QPT_RAW_PACKET); + if (MLX5_CAP_QOS(mdev, packet_pacing_req_ud)) + resp.packet_pacing_caps.supported_qpts |= + BIT(IB_QPT_UD); + if (MLX5_CAP_QOS(mdev, packet_pacing_req_uc)) + resp.packet_pacing_caps.supported_qpts |= + BIT(IB_QPT_UC); + + if (resp.packet_pacing_caps.supported_qpts) { + resp.packet_pacing_caps.qp_rate_limit_max = + MLX5_CAP_QOS(mdev, packet_pacing_max_rate); + resp.packet_pacing_caps.qp_rate_limit_min = + MLX5_CAP_QOS(mdev, packet_pacing_min_rate); + + if (MLX5_CAP_QOS(mdev, packet_pacing_burst_bound) && + MLX5_CAP_QOS(mdev, packet_pacing_typical_size)) + resp.packet_pacing_caps.cap_flags |= + MLX5_IB_PP_SUPPORT_BURST; + } } resp.response_length += sizeof(resp.packet_pacing_caps); } |