From owner-dev-commits-src-main@freebsd.org Fri Mar 5 15:03:09 2021 Return-Path: Delivered-To: dev-commits-src-main@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 6675055CF48; Fri, 5 Mar 2021 15:03:09 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DsWFT2T50z4lGJ; Fri, 5 Mar 2021 15:03:09 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 45781123F7; Fri, 5 Mar 2021 15:03:09 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 125F39pb048641; Fri, 5 Mar 2021 15:03:09 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 125F39jm048640; Fri, 5 Mar 2021 15:03:09 GMT (envelope-from git) Date: Fri, 5 Mar 2021 15:03:09 GMT Message-Id: <202103051503.125F39jm048640@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Michael Tuexen Subject: git: 705d06b289e9 - main - rack: unbreak TCP fast open for the client side MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: tuexen X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 705d06b289e9821439b7b694d766cad75bc064e5 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-main@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for the main branch of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 05 Mar 2021 15:03:09 -0000 The branch main has been updated by tuexen: URL: https://cgit.FreeBSD.org/src/commit/?id=705d06b289e9821439b7b694d766cad75bc064e5 commit 705d06b289e9821439b7b694d766cad75bc064e5 Author: Michael Tuexen AuthorDate: 2021-03-05 14:57:26 +0000 Commit: Michael Tuexen CommitDate: 2021-03-05 15:03:03 +0000 rack: unbreak TCP fast open for the client side Allow sending user data on the SYN segment. Reviewed by: rrs MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D29082 Sponsored by: Netflix, Inc. --- sys/netinet/tcp_stacks/rack.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sys/netinet/tcp_stacks/rack.c b/sys/netinet/tcp_stacks/rack.c index 98a6f0f2e924..f5b0de7cbc59 100644 --- a/sys/netinet/tcp_stacks/rack.c +++ b/sys/netinet/tcp_stacks/rack.c @@ -12297,7 +12297,8 @@ again: * If sack_rxmit is true we are retransmitting from the scoreboard * in which case len is already set. */ - if ((sack_rxmit == 0) && TCPS_HAVEESTABLISHED(tp->t_state)) { + if ((sack_rxmit == 0) && + (TCPS_HAVEESTABLISHED(tp->t_state) || IS_FASTOPEN(tp->t_flags))) { uint32_t avail; avail = sbavail(sb);