From owner-svn-src-head@freebsd.org Mon Mar 27 23:48:37 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 B509ED20B7D; Mon, 27 Mar 2017 23:48:37 +0000 (UTC) (envelope-from karels@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 7C01F78A; Mon, 27 Mar 2017 23:48:37 +0000 (UTC) (envelope-from karels@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id v2RNma9D053073; Mon, 27 Mar 2017 23:48:36 GMT (envelope-from karels@FreeBSD.org) Received: (from karels@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id v2RNmaEf053072; Mon, 27 Mar 2017 23:48:36 GMT (envelope-from karels@FreeBSD.org) Message-Id: <201703272348.v2RNmaEf053072@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: karels set sender to karels@FreeBSD.org using -f From: Mike Karels Date: Mon, 27 Mar 2017 23:48:36 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r316065 - head/sys/netinet X-SVN-Group: head 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: Mon, 27 Mar 2017 23:48:37 -0000 Author: karels Date: Mon Mar 27 23:48:36 2017 New Revision: 316065 URL: https://svnweb.freebsd.org/changeset/base/316065 Log: Enable route and LLE (ndp) caching in TCP/IPv6 tcp_output.c was using a route on the stack for IPv6, which does not allow route caching or LLE/ndp caching. Switch to using the route (v6 flavor) in the in_pcb, which was already present, which caches both L3 and L2 lookups. Reviewed by: gnn hiren MFC after: 2 weeks Modified: head/sys/netinet/tcp_output.c Modified: head/sys/netinet/tcp_output.c ============================================================================== --- head/sys/netinet/tcp_output.c Mon Mar 27 22:53:36 2017 (r316064) +++ head/sys/netinet/tcp_output.c Mon Mar 27 23:48:36 2017 (r316065) @@ -1377,9 +1377,6 @@ send: */ #ifdef INET6 if (isipv6) { - struct route_in6 ro; - - bzero(&ro, sizeof(ro)); /* * we separately set hoplimit for every segment, since the * user might want to change the value via setsockopt. @@ -1411,13 +1408,13 @@ send: #endif /* TODO: IPv6 IP6TOS_ECT bit on */ - error = ip6_output(m, tp->t_inpcb->in6p_outputopts, &ro, + error = ip6_output(m, tp->t_inpcb->in6p_outputopts, + &tp->t_inpcb->inp_route6, ((so->so_options & SO_DONTROUTE) ? IP_ROUTETOIF : 0), NULL, NULL, tp->t_inpcb); - if (error == EMSGSIZE && ro.ro_rt != NULL) - mtu = ro.ro_rt->rt_mtu; - RO_RTFREE(&ro); + if (error == EMSGSIZE && tp->t_inpcb->inp_route6.ro_rt != NULL) + mtu = tp->t_inpcb->inp_route6.ro_rt->rt_mtu; } #endif /* INET6 */ #if defined(INET) && defined(INET6)