From owner-cvs-all@FreeBSD.ORG Wed Sep 6 22:25:32 2006 Return-Path: X-Original-To: cvs-all@FreeBSD.org Delivered-To: cvs-all@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 12F9F16A5C0 for ; Wed, 6 Sep 2006 22:25:32 +0000 (UTC) (envelope-from andre@freebsd.org) Received: from c00l3r.networx.ch (c00l3r.networx.ch [62.48.2.2]) by mx1.FreeBSD.org (Postfix) with ESMTP id D4AFD43EDB for ; Wed, 6 Sep 2006 22:21:50 +0000 (GMT) (envelope-from andre@freebsd.org) Received: (qmail 53366 invoked from network); 6 Sep 2006 22:06:38 -0000 Received: from c00l3r.networx.ch (HELO [127.0.0.1]) ([62.48.2.2]) (envelope-sender ) by c00l3r.networx.ch (qmail-ldap-1.03) with SMTP for ; 6 Sep 2006 22:06:38 -0000 Message-ID: <44FF49F2.3090308@freebsd.org> Date: Thu, 07 Sep 2006 00:21:38 +0200 From: Andre Oppermann User-Agent: Thunderbird 1.5.0.5 (Windows/20060719) MIME-Version: 1.0 To: Andre Oppermann References: <200609062152.k86Lq0nf067799@repoman.freebsd.org> In-Reply-To: <200609062152.k86Lq0nf067799@repoman.freebsd.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/net if.h src/sys/netinet ip_output.c tcp_input.c tcp_subr.c tcp_var.h src/sys/netinet6 icmp6.c src/sys/sys mbuf.h X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Sep 2006 22:25:32 -0000 Andre Oppermann wrote: > andre 2006-09-06 21:51:59 UTC > > FreeBSD src repository > > Modified files: > sys/net if.h > sys/netinet ip_output.c tcp_input.c tcp_subr.c > tcp_var.h > sys/netinet6 icmp6.c > sys/sys mbuf.h > Log: > First step of TSO (TCP segmentation offload) support in our network stack. > > o add IFCAP_TSO[46] for drivers to announce this capability for IPv4 and IPv6 > o add CSUM_TSO flag to mbuf pkthdr csum_flags field > o add tso_segsz field to mbuf pkthdr > o enhance ip_output() packet length check to allow for large TSO packets > o extend tcp_maxmtu[46]() with a flag pointer to pass interface capabilities > o adjust all callers of tcp_maxmtu[46]() accordingly Step 2 (the tcp_output() changes) follows as soon as the Intel guys are done with testing in their lab together with an extended em(4) driver. -- Andre