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RDMA/mlx5: Report packet pacing capabilities when querying device

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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>
This commit is contained in:
Maher Sanalla 2026-05-24 18:38:06 +03:00 committed by Leon Romanovsky
parent 915bbc8578
commit 1f307090e9
1 changed files with 23 additions and 14 deletions
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37
drivers/infiniband/hw/mlx5/main.c
View File

@ -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);
}