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From: YongHyeon PYUN <pyunyh@gmail.com>
Date: Fri, 24 Feb 2012 10:06:53 -0800
To: Sean Bruno <seanbru@yahoo-inc.com>
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Subject: Re: bge(4) failure, Dell 12G hardware, BCM5720C
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On Thu, Feb 23, 2012 at 10:23:23AM -0800, Sean Bruno wrote:
> 
> > As you see ukphy(4) was attached to bge2 so it may cause various
> > issues.
> > Is bge2 ASF/IPMI enabled interface?  It seems ASF handling in
> > bge(4) causes more trouble on recent controllers.  Unfortunately
> > disabling ASF may also trigger other problems like NMI.
> > I believe bge(4) should always honor ASF/IMPI firmware instead of
> > relying on hw.bge.allow_asf tunable and have to strictly follow
> > firmware handshake sequence.  Just ignoring ASF/IMPI firmware seems
> > to confuse firmware.   
> > Unfortunately all these information is undocumented and fixing it
> > requires real hardware access.
> 
> ASF/IPMI -- I've tried disabling things, but it just fails miserably.  I
> can at least get the host to a login via serial console and poke at
> things.
> 
> Do you want me to rig up a test for you on this box?  I suspect I can do
> something temporarily in the freebsd cluster with this box.
> 

Hmm, I still have to understand what is correct handshake sequence
for ASF/IPMI firmware. This handshake may be related with suspend/
resume as well as WOL. I'll let you know when I have experimental
patch.

> Sean
>