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[v3,3/4] RDMA/irdma: Make the source udp port vary

Message ID 20220106180359.2915060-4-yanjun.zhu@linux.dev (mailing list archive)
State Accepted
Delegated to: Jason Gunthorpe
Headers show
Series Generate UDP src port with flow label or lqpn/rqpn | expand

Commit Message

Zhu Yanjun Jan. 6, 2022, 6:03 p.m. UTC 
From: Zhu Yanjun <yanjun.zhu@linux.dev>

Get the source udp port number for a QP based on the grh.flow_label or
lqpn/rqrpn. This provides a better spread of traffic across NIC RX queues.

Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Acked-by: Shiraz Saleem <shiraz.saleem@intel.com>
---
 drivers/infiniband/hw/irdma/verbs.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
index 8cd5f9261692..8234a101e752 100644
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -1170,6 +1170,10 @@  int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 			udp_info->ttl = attr->ah_attr.grh.hop_limit;
 			udp_info->flow_label = attr->ah_attr.grh.flow_label;
 			udp_info->tos = attr->ah_attr.grh.traffic_class;
+			udp_info->src_port = rdma_get_udp_sport(
+						udp_info->flow_label,
+						ibqp->qp_num,
+						roce_info->dest_qp);
 			irdma_qp_rem_qos(&iwqp->sc_qp);
 			dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri);
 			ctx_info->user_pri = rt_tos2priority(udp_info->tos);