Date: Thu, 9 Nov 2017 19:27:29 +0000 (UTC) From: Hans Petter Selasky <hselasky@FreeBSD.org> 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 Message-ID: <201711091927.vA9JRTBu045026@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
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; } }
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201711091927.vA9JRTBu045026>