From owner-freebsd-net@FreeBSD.ORG  Tue Jul 31 13:22:21 2012
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 85872106566B
	for <freebsd-net@freebsd.org>; Tue, 31 Jul 2012 13:22:21 +0000 (UTC)
	(envelope-from venkatduvvuru.ml@gmail.com)
Received: from mail-ob0-f182.google.com (mail-ob0-f182.google.com
	[209.85.214.182])
	by mx1.freebsd.org (Postfix) with ESMTP id 4CFB08FC08
	for <freebsd-net@freebsd.org>; Tue, 31 Jul 2012 13:22:21 +0000 (UTC)
Received: by obbun3 with SMTP id un3so13678311obb.13
	for <freebsd-net@freebsd.org>; Tue, 31 Jul 2012 06:22:20 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
	h=mime-version:date:message-id:subject:from:to:content-type;
	bh=oWMVfjxRbyBAZ+s3E6HkZClj7hUeEbxO/Ahh483CvoQ=;
	b=t7GLQ/ChdtCoIOuQODdZ4x4+Di/HTomJLnNaaOla+VDPxmqizYpAtDRiu1avuglqIs
	P1VMOMmr0eptgSOo6PXqIoQBDxVmw7SCuNzPwkXyS+1yJoPMwR6cgc7othFEu+Rdl4Qs
	Znq4dtP6Z8b2CZVyoX7v/O9rgm7lqaB2rvVyhcyuiQ1c+eSq+GYJtw8l+Ff69eocUuEp
	0lRFXgjyw9E9nGylZo/qVZbV0Y0rEpxpGH2H5pCZL3d6AxjkRNWzx/KoHHdv/WTWy/c/
	eHFtnrMabqklAfePim5MPlqi3XY4GgGDcLQu/13+89FlaJSirbEvLsTipn2NK4E0YDZ4
	Drgg==
MIME-Version: 1.0
Received: by 10.182.17.99 with SMTP id n3mr23248276obd.8.1343740940472; Tue,
	31 Jul 2012 06:22:20 -0700 (PDT)
Received: by 10.76.8.99 with HTTP; Tue, 31 Jul 2012 06:22:20 -0700 (PDT)
Date: Tue, 31 Jul 2012 18:52:20 +0530
Message-ID: <CAGdae7YYrk9NbeY_MTF=x=VVkwhuQO6YiX3cnLoeLhR4Nt6PfA@mail.gmail.com>
From: Venkat Duvvuru <venkatduvvuru.ml@gmail.com>
To: freebsd-net@freebsd.org
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Subject: IPv6 multi queue transmit
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
	<mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 31 Jul 2012 13:22:21 -0000

Hi,
I have a  couple of questions related to flowid for IPv6. Please clarify.

1. Why is the below code (ip_output) absent for ip6_output? This is causing
the ipv6 traffic to always flow in just one queue.

if (inp != NULL) {
                INP_LOCK_ASSERT(inp);
                M_SETFIB(m, inp->inp_inc.inc_fibnum);
                if (inp->inp_flags & (INP_HW_FLOWID|INP_SW_FLOWID)) {
                        m->m_pkthdr.flowid = inp->inp_flowid;
                        m->m_flags |= M_FLOWID;
                }
        }
2. Why "fle" is NULL after enabling FLOWTABLE for IPv6

net/flowtable.c
        if (af == AF_INET6)
        {
                fle = flowtable_lookup_mbuf6(ft, m);
                if (fle != NULL && m != NULL && (m->m_flags & M_FLOWID) ==
0) {
                        m->m_flags |= M_FLOWID;
                        m->m_pkthdr.flowid = fle->f_fhash;
                }
        }

/Venkat