netdev - Re: [BUG] netxen: Stops working between 2.6.30 and 2.6.31-rc1

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Date:	Fri, 20 Nov 2009 10:07:53 -0800
From:	Dhananjay Phadke <dhananjay.phadke@...gic.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Jens Rosenboom <me@...r.de>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	Amit Salecha <amit.salecha@...gic.com>,
	Ameen Rahman <ameen.rahman@...gic.com>
Subject: Re: [BUG] netxen: Stops working between 2.6.30 and 2.6.31-rc1

Eric W. Biederman wrote:
> MSI-X uses the same messages on the wire is the same as MSI it is
> only the programming interface that is different.  So if MSI works and
> MSI-X does not it is not a platform problem.
> 

Sure, but firmware and driver see it differently. IMO, this points to 
some firmware issue (which is why I asked him to get right version from 
right source). All that driver did was tried to enable msi-x, from my 
testing, I can tell that both msi and msix work on all revisions of the 
nic asic, but firmware revision can make a difference. For chiprev 0x25, 
3.4.339 is the right firmware version.

Thanks,
Dhananjay
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