From owner-svn-src-stable@FreeBSD.ORG  Thu May  7 01:14:59 2009
Return-Path: <owner-svn-src-stable@FreeBSD.ORG>
Delivered-To: svn-src-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 8A229106566C;
	Thu,  7 May 2009 01:14:59 +0000 (UTC)
	(envelope-from yongari@FreeBSD.org)
Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:4f8:fff6::2c])
	by mx1.freebsd.org (Postfix) with ESMTP id 770B48FC18;
	Thu,  7 May 2009 01:14:59 +0000 (UTC)
	(envelope-from yongari@FreeBSD.org)
Received: from svn.freebsd.org (localhost [127.0.0.1])
	by svn.freebsd.org (8.14.3/8.14.3) with ESMTP id n471ExG6035632;
	Thu, 7 May 2009 01:14:59 GMT (envelope-from yongari@svn.freebsd.org)
Received: (from yongari@localhost)
	by svn.freebsd.org (8.14.3/8.14.3/Submit) id n471Exp3035631;
	Thu, 7 May 2009 01:14:59 GMT (envelope-from yongari@svn.freebsd.org)
Message-Id: <200905070114.n471Exp3035631@svn.freebsd.org>
From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Thu, 7 May 2009 01:14:59 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
	svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org
X-SVN-Group: stable-7
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: 
Subject: svn commit: r191867 - in stable/7/sys: . contrib/pf dev/ath/ath_hal
	dev/cxgb dev/fxp
X-BeenThere: svn-src-stable@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: SVN commit messages for all the -stable branches of the src tree
	<svn-src-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>, 
	<mailto:svn-src-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-stable>
List-Post: <mailto:svn-src-stable@freebsd.org>
List-Help: <mailto:svn-src-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-stable>,
	<mailto:svn-src-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 07 May 2009 01:15:00 -0000

Author: yongari
Date: Thu May  7 01:14:59 2009
New Revision: 191867
URL: http://svn.freebsd.org/changeset/base/191867

Log:
  MFC r190982:
    Don't blindly set IP packet length from interface MTU in TSO case.
    Remote host can advertise smaller MSS than that of sender so upper
    stack might have adjusted the MSS which in turn generates IP
    packets that are less size than that of interface MTU.
  
    Reported by:	Bjoern Koenig ( bkoenig <> alpha-tierchen dot de )

Modified:
  stable/7/sys/   (props changed)
  stable/7/sys/contrib/pf/   (props changed)
  stable/7/sys/dev/ath/ath_hal/   (props changed)
  stable/7/sys/dev/cxgb/   (props changed)
  stable/7/sys/dev/fxp/if_fxp.c

Modified: stable/7/sys/dev/fxp/if_fxp.c
==============================================================================
--- stable/7/sys/dev/fxp/if_fxp.c	Thu May  7 00:35:32 2009	(r191866)
+++ stable/7/sys/dev/fxp/if_fxp.c	Thu May  7 01:14:59 2009	(r191867)
@@ -1486,7 +1486,8 @@ fxp_encap(struct fxp_softc *sc, struct m
 		 * checksum in the first frame driver should compute it.
 		 */
 		ip->ip_sum = 0;
-		ip->ip_len = htons(ifp->if_mtu);
+		ip->ip_len = htons(m->m_pkthdr.tso_segsz + (ip->ip_hl << 2) +
+		    (tcp->th_off << 2));
 		tcp->th_sum = in_pseudo(ip->ip_src.s_addr, ip->ip_dst.s_addr,
 		    htons(IPPROTO_TCP + (tcp->th_off << 2) +
 		    m->m_pkthdr.tso_segsz));