[PATCH 1/1] RDMA/rxe: Use the standard method to produce udp source port
From: <hidden>
Date: 2021-12-24 01:04:12
Subsystem:
infiniband subsystem, soft-roce driver (rxe), the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Zhu Yanjun, Linus Torvalds
From: Zhu Yanjun <redacted>
Use the standard method to produce udp source port based on the
commit 2b880b2e5e03 ("RDMA/mlx5: Define RoCEv2 udp source port
when set path").
Signed-off-by: Zhu Yanjun <redacted>
---
drivers/infiniband/sw/rxe/rxe_verbs.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c
index 0aa0d7e52773..9a0748ad6417 100644
--- a/drivers/infiniband/sw/rxe/rxe_verbs.c
+++ b/drivers/infiniband/sw/rxe/rxe_verbs.c@@ -451,6 +451,14 @@ static int rxe_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *init, return err; } +static u16 rxe_get_udp_sport(u32 fl, u32 lqpn, u32 rqpn) +{ + if (!fl) + fl = rdma_calc_flow_label(lqpn, rqpn); + + return rdma_flow_label_to_udp_sport(fl); +} + static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int mask, struct ib_udata *udata) {
@@ -469,6 +477,16 @@ static int rxe_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, if (err) goto err1; + if (mask & IB_QP_AV) { + if (attr->ah_attr.ah_flags & IB_AH_GRH) { + u32 fl = attr->ah_attr.grh.flow_label; + u32 lqp = qp->ibqp.qp_num; + u32 rqp = qp->attr.dest_qp_num; + + qp->src_port = rxe_get_udp_sport(fl, lqp, rqp); + } + } + return 0; err1:
--
2.27.0