Date: Wed, 24 Jun 2026 19:51:23 +0000 From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: b6354f040818 - main - OFED: Calculate UDP source port based on flow label or lqpn/rqpn Message-ID: <6a3c353b.45c94.5168cc33@gitrepo.freebsd.org>
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The branch main has been updated by jhb: URL: https://cgit.FreeBSD.org/src/commit/?id=b6354f04081823cc0ccf2af573a59a826d7763c8 commit b6354f04081823cc0ccf2af573a59a826d7763c8 Author: John Baldwin <jhb@FreeBSD.org> AuthorDate: 2026-06-24 19:30:56 +0000 Commit: John Baldwin <jhb@FreeBSD.org> CommitDate: 2026-06-24 19:30:56 +0000 OFED: Calculate UDP source port based on flow label or lqpn/rqpn Calculate and set UDP source port based on the flow label. If flow label is not defined in GRH then calculate it based on lqpn/rqpn. Tested by: Wafa Hamzah <wafah@nvidia.com> (mlx5_ib) Tested by: John Baldwin <jhb@FreeBSD.org> (iw_cxgbe) Obtained from: Linux commit 18451db82ef7f943c60a7fce685f16172bda5106 Sponsored by: Chelsio Communications --- sys/ofed/include/rdma/ib_verbs.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/sys/ofed/include/rdma/ib_verbs.h b/sys/ofed/include/rdma/ib_verbs.h index 38e6858e767f..8ac13023020b 100644 --- a/sys/ofed/include/rdma/ib_verbs.h +++ b/sys/ofed/include/rdma/ib_verbs.h @@ -4223,4 +4223,21 @@ static inline u32 rdma_calc_flow_label(u32 lqpn, u32 rqpn) return (u32)(v & IB_GRH_FLOWLABEL_MASK); } + +/** + * rdma_get_udp_sport - Calculate and set UDP source port based on the flow + * label. If flow label is not defined in GRH then + * calculate it based on lqpn/rqpn. + * + * @fl: flow label from GRH + * @lqpn: local qp number + * @rqpn: remote qp number + */ +static inline u16 rdma_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); +} #endif /* IB_VERBS_H */home | help
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