From patchwork Sat Dec 18 20:44:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhu Yanjun X-Patchwork-Id: 12685895 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 553A8C433EF for ; Sat, 18 Dec 2021 04:21:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231866AbhLREU7 (ORCPT ); Fri, 17 Dec 2021 23:20:59 -0500 Received: from mga01.intel.com ([192.55.52.88]:53608 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230053AbhLREU6 (ORCPT ); Fri, 17 Dec 2021 23:20:58 -0500 X-IronPort-AV: E=McAfee;i="6200,9189,10201"; a="264062582" X-IronPort-AV: E=Sophos;i="5.88,215,1635231600"; d="scan'208";a="264062582" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2021 20:20:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,215,1635231600"; d="scan'208";a="520036638" Received: from intel-obmc.bj.intel.com (HELO intel-71.bj.intel.com) ([10.238.154.71]) by orsmga008.jf.intel.com with ESMTP; 17 Dec 2021 20:20:56 -0800 From: yanjun.zhu@linux.dev To: mustafa.ismail@intel.com, shiraz.saleem@intel.com, jgg@ziepe.ca, linux-rdma@vger.kernel.org, yanjun.zhu@linux.dev Subject: [PATCHv2 1/1] RDMA/irdma: Make the source udp port vary Date: Sat, 18 Dec 2021 15:44:38 -0500 Message-Id: <20211218204438.1345160-1-yanjun.zhu@linux.dev> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Zhu Yanjun Based on the link https://www.spinics.net/lists/linux-rdma/msg73735.html, get the source udp port number for a QP based on the grh.flow_label or lqpn/rqpn. This provides a better spread of traffic across NIC RX queues. The method in the commit 2b880b2e5e03 ("RDMA/mlx5: Define RoCEv2 udp source port when set path") is a standard way. So it is also adopted in this commit. Signed-off-by: Zhu Yanjun --- V1->V2: Adopt a standard method to get udp source port. --- drivers/infiniband/hw/irdma/verbs.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index 8cd5f9261692..9fe73d1db0d9 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -1094,6 +1094,15 @@ static int irdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index, return 0; } + +static u16 irdma_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); +} + /** * irdma_modify_qp_roce - modify qp request * @ibqp: qp's pointer for modify @@ -1159,6 +1168,10 @@ int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr, ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id; + udp_info->src_port = irdma_get_udp_sport(udp_info->flow_label, + ibqp->qp_num, + roce_info->dest_qp); + if (attr_mask & IB_QP_AV) { struct irdma_av *av = &iwqp->roce_ah.av; const struct ib_gid_attr *sgid_attr;