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Date:	Tue, 2 Oct 2012 08:03:05 -0700
From:	"Michael Chan" <>
To:	"Ferenc Wagner" <>
cc:, "Matt Carlson" <>,
	"Grant Likely" <>,
	"Rob Herring" <>,
Subject: Re: tg3 driver upgrade (Linux 2.6.32 -> 3.2) breaks IBM
 Bladecenter SoL

On Tue, 2012-10-02 at 14:07 +0200, Ferenc Wagner wrote:
> I'm done with bisecting it: the first bad commit is:
> commit dabc5c670d3f86d15ee4f42ab38ec5bd2682487d
> Author: Matt Carlson <>
> Date:   Thu May 19 12:12:52 2011 +0000
>     tg3: Move TSO_CAPABLE assignment
>     This patch moves the code that asserts the TSO_CAPABLE flag closer
> to
>     where the TSO capabilities flags are set.  There isn't a good
> enough
>     reason for the code to be separated.
>     Signed-off-by: Matt Carlson <>
>     Reviewed-by: Michael Chan <>
>     Signed-off-by: David S. Miller <>

Thanks, I'll look into this.
> On the other hand, losing the SoL console even temporarily during boot
> (as it happens with a minimal kernel before this commit) isn't nice
> either.  I'll try to look after that, too, just mentioning it here... 

This is expected as the driver has to reset the link and you'll lose SoL
for a few seconds until link comes back up.  We can look into an
enhancement to not touch the link if it is already in a good state when
the driver comes up.

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