From owner-svn-src-head@freebsd.org Thu Nov 9 19:27:30 2017 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 6BDB4E596AC; Thu, 9 Nov 2017 19:27:30 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 381D17470F; Thu, 9 Nov 2017 19:27:30 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id vA9JRTF9045027; Thu, 9 Nov 2017 19:27:29 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id vA9JRTBu045026; Thu, 9 Nov 2017 19:27:29 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201711091927.vA9JRTBu045026@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Thu, 9 Nov 2017 19:27:29 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r325615 - head/sys/ofed/drivers/infiniband/core X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/ofed/drivers/infiniband/core X-SVN-Commit-Revision: 325615 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Nov 2017 19:27:30 -0000 Author: hselasky Date: Thu Nov 9 19:27:29 2017 New Revision: 325615 URL: https://svnweb.freebsd.org/changeset/base/325615 Log: Make sure the IPv6 scope ID gets zeroed when exchanging CMA messages in ibcore. Else the IPv6 address matching might fail. This change adds support for both embedded and non-embedded IPv6 scope IDs when passing a IPv6 link-local socket address to RDMA. Prior to this change only global IPv6 addresses would work with RDMA. Sponsored by: Mellanox Technologies MFC after: 1 week Modified: head/sys/ofed/drivers/infiniband/core/cma.c Modified: head/sys/ofed/drivers/infiniband/core/cma.c ============================================================================== --- head/sys/ofed/drivers/infiniband/core/cma.c Thu Nov 9 19:22:43 2017 (r325614) +++ head/sys/ofed/drivers/infiniband/core/cma.c Thu Nov 9 19:27:29 2017 (r325615) @@ -934,6 +934,17 @@ static int cma_get_net_info(void *hdr, enum rdma_port_ return 0; } +static void cma_ip6_clear_scope_id(struct in6_addr *addr) +{ + /* make sure link local scope ID gets zeroed */ + if (IN6_IS_SCOPE_LINKLOCAL(addr) || + IN6_IS_ADDR_MC_INTFACELOCAL(addr)) { + /* use byte-access to be alignment safe */ + addr->s6_addr[2] = 0; + addr->s6_addr[3] = 0; + } +} + static void cma_save_net_info(struct rdma_addr *addr, struct rdma_addr *listen_addr, u8 ip_ver, __be16 port, @@ -965,6 +976,7 @@ static void cma_save_net_info(struct rdma_addr *addr, ip6->sin6_port = listen6->sin6_port; ip6->sin6_len = sizeof(struct sockaddr_in6); ip6->sin6_scope_id = listen6->sin6_scope_id; + cma_ip6_clear_scope_id(&ip6->sin6_addr); ip6 = (struct sockaddr_in6 *) &addr->dst_addr; ip6->sin6_family = listen6->sin6_family; @@ -972,6 +984,7 @@ static void cma_save_net_info(struct rdma_addr *addr, ip6->sin6_port = port; ip6->sin6_len = sizeof(struct sockaddr_in6); ip6->sin6_scope_id = listen6->sin6_scope_id; + cma_ip6_clear_scope_id(&ip6->sin6_addr); break; default: break; @@ -1535,6 +1548,7 @@ static void cma_set_compare_data(enum rdma_port_space break; case AF_INET6: ip6_addr = ((struct sockaddr_in6 *) addr)->sin6_addr; + cma_ip6_clear_scope_id(&ip6_addr); if (ps == RDMA_PS_SDP) { sdp_set_ip_ver(sdp_data, 6); sdp_set_ip_ver(sdp_mask, 0xF); @@ -2840,6 +2854,8 @@ static int cma_format_hdr(void *hdr, enum rdma_port_sp cma_hdr->src_addr.ip6 = src6->sin6_addr; cma_hdr->dst_addr.ip6 = dst6->sin6_addr; cma_hdr->port = src6->sin6_port; + cma_ip6_clear_scope_id(&cma_hdr->src_addr.ip6); + cma_ip6_clear_scope_id(&cma_hdr->dst_addr.ip6); break; } }