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RDMA/mlx5: Support rate limit only for Raw Packet QP

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mlx5 based hardware supports rate limiting only on Raw ethernet QPs.
Added an explicit check to fail the operation on any other QP types.
The rate limit support has been enahanced in the stack for RC QPs too.

Compile tested only.

CC: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20260202133413.3182578-5-kalesh-anakkur.purayil@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Kalesh AP 2026-02-02 19:04:12 +05:30 committed by Leon Romanovsky
parent 949e7c062d
commit cae42d97d9
1 changed files with 5 additions and 0 deletions
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5
drivers/infiniband/hw/mlx5/qp.c
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@ -4362,6 +4362,11 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
optpar |= ib_mask_to_mlx5_opt(attr_mask);
optpar &= opt_mask[mlx5_cur][mlx5_new][mlx5_st];
if (attr_mask & IB_QP_RATE_LIMIT && qp->type != IB_QPT_RAW_PACKET) {
err = -EOPNOTSUPP;
goto out;
}
if (qp->type == IB_QPT_RAW_PACKET ||
qp->flags & IB_QP_CREATE_SOURCE_QPN) {
struct mlx5_modify_raw_qp_param raw_qp_param = {};