linux-kernel - Re: Need assistance fixing a tg3 driver side-effect on IPMI

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Message-ID: <20121112152957.GP30936@casco.aei.mpg.de>
Date:	Mon, 12 Nov 2012 16:29:57 +0100
From:	Steffen Grunewald <Steffen.Grunewald@....mpg.de>
To:	王金浦 <jinpuwang@...il.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, htejun@...il.com,
	tj@...nel.org, Carsten Aulbert <carsten.aulbert@....mpg.de>
Subject: Re: Need assistance fixing a tg3 driver side-effect on IPMI

On Wed, Nov 07, 2012 at 05:40:19PM +0800, 王金浦 wrote:
> Ferenc met samilar problem :
> 
> "Michael Chan" <mchan@...adcom.com> writes:
> 
> > On Tue, 2012-10-02 at 18:49 +0200, Ferenc Wagner wrote:
> >
> >> Going into the opposite direction: I found that Linux 3.6 does not
> >> permanently break the SoL console on upping eth0!  I'll try to find
> >> the commit which (sort of) fixed it.
> >
> > These are the likely fixes:
> >
> > commit cf9ecf4b631f649a964fa611f1a5e8874f2a76db
> > Author: Matt Carlson <mcarlson@...adcom.com>
> > Date: Mon Nov 28 09:41:03 2011 +0000
> >
> > tg3: Fix TSO CAP for 5704 devs w / ASF enabled
> 
> You are exactly right: cf9ecf4b fixed the premanent SoL breakage
> introduced by dabc5c67.  Looks like ASF utilizes similar technology to
> that of the HS20 BMC.  Thanks for the tip, it greatly reduced our CPU
> wear. :)  It's a pity ethtool -k did not give a hint.  Do you think it's
> possible to work around in 3.2 by eg. fiddling some ethtool setting?
> 
> the fix already go into Precise update to 3.2.31 stable release
> 
> So update your kernel should fix your problem.

Indeed, only a few days ago, 3.2.32 migrated into Wheezy - which cures
the problem.

Issue resolved (for now).

Thanks a lot to everyone,
 S

-- 
Steffen Grunewald * MPI Grav.Phys.(AEI) * Am Mühlenberg 1, D-14476 Potsdam
Cluster Admin * --------------------------------- * http://www.aei.mpg.de/
* e-mail: steffen.grunewald(*)aei.mpg.de * +49-331-567-{fon:7274,fax:7298}
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