From owner-freebsd-net@FreeBSD.ORG  Wed Mar 26 02:33:45 2014
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id CBBFD8DC;
 Wed, 26 Mar 2014 02:33:45 +0000 (UTC)
Received: from mail-qa0-x236.google.com (mail-qa0-x236.google.com
 [IPv6:2607:f8b0:400d:c00::236])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 778CF99B;
 Wed, 26 Mar 2014 02:33:45 +0000 (UTC)
Received: by mail-qa0-f54.google.com with SMTP id w8so1577432qac.41
 for <multiple recipients>; Tue, 25 Mar 2014 19:33:44 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:in-reply-to:references:date:message-id:subject:from:to
 :cc:content-type;
 bh=juyjoZ86NPKVOIjrqUMBmJq1TAe2MaY7et12J+Itkos=;
 b=DZMtXb+c4cC+B1yukf5juzj0lYK+O/VPflY6rv27Z3T/sBpzdSDUSXgF37Kw2wW27z
 v2rlqjowRPJINzl8wsjNRlOZMmm1hpnEuAMGLjVDd6Xp/DU4sm94/dt3zn34+0JdpAJ6
 8C5H6zywBM1KJBC+KuwzzBjrymZnJcIKIO7YAFSIWCGKVzHhLJlSATsxqDPVpfDzx722
 ljUKGFELkjSunBYMnSwrr51iGvIAom1WK8W4+xMUByPWsWc8Aeo8anTZhGWJmKu0Eejs
 gUFyeDWxLfmtwOVpYe2H9HvfIRIAYr7iNN6mziSqZmEtxIIkVNbH9eaRjbHQru++E0lM
 i3BA==
MIME-Version: 1.0
X-Received: by 10.140.82.175 with SMTP id h44mr3463033qgd.65.1395801224728;
 Tue, 25 Mar 2014 19:33:44 -0700 (PDT)
Received: by 10.96.79.97 with HTTP; Tue, 25 Mar 2014 19:33:44 -0700 (PDT)
In-Reply-To: <1197F2E5-F20C-43E4-B8C8-8732F45457C2@hostpoint.ch>
References: <0BC10908-2081-45AC-A1C8-14220D81EC0A@hostpoint.ch>
 <1236110257.2510701.1395709458870.JavaMail.root@uoguelph.ca>
 <CAB2_NwBrdp3XsVrgkWgf7zGsrCBq1+C7FgsYvV28yjcUe4qZ=Q@mail.gmail.com>
 <CAB2_NwA2zp9VaBm4ZRR1udghbSpSDs_x8bK6CPHCaBuiBKD=KA@mail.gmail.com>
 <1197F2E5-F20C-43E4-B8C8-8732F45457C2@hostpoint.ch>
Date: Tue, 25 Mar 2014 23:33:44 -0300
Message-ID: <CAB2_NwA-zLnJh7Teqx4eQ-Tkc8bjx2qL0JMZeZqvSzJZ4mx4cg@mail.gmail.com>
Subject: Re: 9.2 ixgbe tx queue hang
From: Christopher Forgeron <csforgeron@gmail.com>
To: Markus Gebert <markus.gebert@hostpoint.ch>
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.17
Cc: FreeBSD Net <freebsd-net@freebsd.org>, Rick Macklem <rmacklem@uoguelph.ca>,
 Garrett Wollman <wollman@freebsd.org>, Jack Vogel <jfvogel@gmail.com>
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/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: Wed, 26 Mar 2014 02:33:46 -0000

On Tue, Mar 25, 2014 at 8:21 PM, Markus Gebert
<markus.gebert@hostpoint.ch>wrote:

>
>
> Is 65517 correct? With Ricks patch, I get this:
>
> dev.ix.0.hw_tsomax: 65518
>

Perhaps a difference between 9.2 and 10 for one of the macros?  My code is:

ifp->if_hw_tsomax = IP_MAXPACKET - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN);
        printf("CSF - 3 Init, ifp->if_hw_tsomax = %d\n", ifp->if_hw_tsomax);

(BTW, you should submit the hw_tsomax sysctl patch, that's useful to others)


> Also the dtrace command you used excludes 65518...
>

Oh, I thought it was giving every packet that is greater than or equal to
65518 - Could you show me the proper command? That's the third time I've
used dtrace, so I'm making this up as I go. :-)