Subject: Re: tg3 driver upgrade (Linux 2.6.32 -> 3.2) breaks IBM
 Bladecenter SoL
From: "Michael Chan" <mchan@broadcom.com>
To: "Ferenc Wagner" <wferi@niif.hu>
cc: netdev@vger.kernel.org, "Matt Carlson" <mcarlson@broadcom.com>,
        "Grant Likely" <grant.likely@secretlab.ca>,
        "Rob Herring" <rob.herring@calxeda.com>, linux-kernel@vger.kernel.org
In-Reply-To: <87txuhho5z.fsf@lant.ki.iif.hu>
References: <87txuhho5z.fsf@lant.ki.iif.hu>
Date: Mon, 1 Oct 2012 02:33:02 -0700
Message-ID: <1349083982.5420.16.camel@LTIRV-MCHAN1.corp.ad.broadcom.com>
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On Fri, 2012-09-28 at 22:45 +0200, Ferenc Wagner wrote: 
> Hi,
> 
> Upgrading the kernel on our HS20 blades resulted in their SoL (serial
> over LAN) connection being broken.  The disconnection happens when eth0
> (the interface involved in SoL) is brought up during the boot sequence.
> If I later "ip link set eth0 down", then the connection is restored, but
> "ip link set eth0 up" breaks it again on 3.2.  ethtool -a, -c, -g, -k
> and -u show no difference; ethtool -i on the 2.6.32 kernel reports:
> 
> driver: tg3
> version: 3.116
> firmware-version: 5704s-v3.38, ASFIPMIs v2.47
> bus-info: 0000:05:01.0
> 
> In the 3.2 kernel the driver version is 3.121.

2.6.32 to 3.2 is a big jump.  Can you narrow this down further?  It will
be hard for us to find a HS20 with 5704 to test this.  Thanks.


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