From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CB1FDC433E6 for ; Thu, 21 Jan 2021 19:11:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 818B4221E7 for ; Thu, 21 Jan 2021 19:11:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726419AbhAUTLR (ORCPT ); Thu, 21 Jan 2021 14:11:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57000 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727009AbhAUTLH (ORCPT ); Thu, 21 Jan 2021 14:11:07 -0500 Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5F5C3C061788 for ; Thu, 21 Jan 2021 11:10:27 -0800 (PST) Received: by mail-wm1-x330.google.com with SMTP id c128so2445257wme.2 for ; Thu, 21 Jan 2021 11:10:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernelim-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=g8P88sp+8apegiLqVYCkvxoqom/NYU/MhhmjOAc/rTA=; b=GAsQTs9ZnU4o9blg0z/z0aXltgvyeUgVzMbD7Ee2z2ippHLkSbvsqxNZ5jYDSpbOxm B94q4VchO39YK3oFa1mRIAbBs+DyxyNhGcRDKPOoBF14ZjCDE21aE7N93FKGTMHg+dPM OBgtueZE1W9SQVZ7P32YNHfqMWAFNiRnvaZ9gl/R1HfCysWCtyNOO+PGG1GrnjOsTdHK E63yobWtq9z/a1R/WxpJugAMhSnrhCoFP6vvGhEwiSTI5VP6rlkoahTf1iLIQfesOkeB IvuvJK0lroARDtsjK7rkWCTlemrjWUm3etABKxeXmVYlz+JtM89HiH/U5hz9SXDo2SgP izBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=g8P88sp+8apegiLqVYCkvxoqom/NYU/MhhmjOAc/rTA=; b=jAlBmzdBAsMmw6ErGjUOVSXmJBiOj3suNZngEFk3xX1dsgNA/FnNcGcCOHd2q3dGpY Xzp5Fu4ZIfL6lSRS3anvRiBB0K3fNRc7ct9H2jsNgI0JoGLvCw1kF0zBebNA/yXYIz0+ AKk2USxY/BEHdGO13M5AI5Fcy9EvleNkNMmC2BeVScZhgtX72vDA4F1v1f7Ka0ja0x/z lIdRFpr0VVcbnkiSP/TH6jWf/tQB4RzDXEl0tfWOCI5NgMsr8DW3qP45OMOe5lHpBP8s VU8JYqh1k/s8+iAyBNMyIMAt39N0mTclXbsgtw5y3rLDvtNlA5+uQws89u0CfFkh17rP DB3Q== X-Gm-Message-State: AOAM5332N5lwUM0//YKbweZzh7s1enraeLwlRc88aUL1yM4BMyY7luL6 Paw5g3hekmhym7R+JnfguG+yCnVyp0SN3Qgl X-Google-Smtp-Source: ABdhPJwACOKj9H9l0tt0km8LiGBmGFjsCkykdBfgZ9FikpY0aRMort2CWvui2jh0+qSLkFRmU3vGrg== X-Received: by 2002:a1c:a90f:: with SMTP id s15mr756035wme.154.1611256225810; Thu, 21 Jan 2021 11:10:25 -0800 (PST) Received: from jupiter.home.aloni.org ([77.124.84.167]) by smtp.gmail.com with ESMTPSA id d30sm11160353wrc.92.2021.01.21.11.10.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 Jan 2021 11:10:25 -0800 (PST) From: Dan Aloni To: linux-nfs@vger.kernel.org Cc: Trond Myklebust , Anna Schumaker Subject: [PATCH v1 2/5] xprtrdma: Bind to a local address if requested Date: Thu, 21 Jan 2021 21:10:17 +0200 Message-Id: <20210121191020.3144948-3-dan@kernelim.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20210121191020.3144948-1-dan@kernelim.com> References: <20210121191020.3144948-1-dan@kernelim.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Until now, rpcrdma did not make use of the local address when binding a QP. For subnets where the local machine has multiple IP addresses that are all connected to the same subnet, it may be desired to tell from which interface a QP is going out. Signed-off-by: Dan Aloni --- net/sunrpc/xprtrdma/transport.c | 7 +++++++ net/sunrpc/xprtrdma/verbs.c | 15 ++++++++++++++- net/sunrpc/xprtrdma/xprt_rdma.h | 2 ++ 3 files changed, 23 insertions(+), 1 deletion(-) diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index 78d29d1bcc20..45726ab5f13a 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -355,6 +355,13 @@ xprt_setup_rdma(struct xprt_create *args) xprt_rdma_format_addresses(xprt, sap); new_xprt = rpcx_to_rdmax(xprt); + + /* Copy source address if specified */ + if (args->srcaddr) { + new_xprt->rx_has_srcaddr = true; + memcpy(&new_xprt->rx_saddr, args->srcaddr, args->addrlen); + } + rc = rpcrdma_buffer_create(new_xprt); if (rc) { xprt_rdma_free_addresses(xprt); diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c index ec912cf9c618..64476161cf92 100644 --- a/net/sunrpc/xprtrdma/verbs.c +++ b/net/sunrpc/xprtrdma/verbs.c @@ -314,6 +314,7 @@ static struct rdma_cm_id *rpcrdma_create_id(struct rpcrdma_xprt *r_xprt, unsigned long wtimeout = msecs_to_jiffies(RDMA_RESOLVE_TIMEOUT) + 1; struct rpc_xprt *xprt = &r_xprt->rx_xprt; struct rdma_cm_id *id; + struct sockaddr *saddr = NULL; int rc; init_completion(&ep->re_done); @@ -324,7 +325,19 @@ static struct rdma_cm_id *rpcrdma_create_id(struct rpcrdma_xprt *r_xprt, return id; ep->re_async_rc = -ETIMEDOUT; - rc = rdma_resolve_addr(id, NULL, (struct sockaddr *)&xprt->addr, + if (r_xprt->rx_has_srcaddr) { + char buf[0x50] = {0, }; + saddr = (struct sockaddr *)&r_xprt->rx_saddr; + + rpc_ntop(saddr, buf, sizeof(buf)); + + dprintk("xprt=%p, source address port %s\n", xprt, buf); + } + + dprintk("xprt=%p, %s:%s resolving addr\n", xprt, + rpcrdma_addrstr(r_xprt), rpcrdma_portstr(r_xprt)); + + rc = rdma_resolve_addr(id, saddr, (struct sockaddr *)&xprt->addr, RDMA_RESOLVE_TIMEOUT); if (rc) goto out; diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h index 94b28657aeeb..cb4539d4740a 100644 --- a/net/sunrpc/xprtrdma/xprt_rdma.h +++ b/net/sunrpc/xprtrdma/xprt_rdma.h @@ -421,6 +421,8 @@ struct rpcrdma_stats { */ struct rpcrdma_xprt { struct rpc_xprt rx_xprt; + struct sockaddr_storage rx_saddr; + bool rx_has_srcaddr; struct rpcrdma_ep *rx_ep; struct rpcrdma_buffer rx_buf; struct delayed_work rx_connect_worker; -- 2.26.2