linux-kernel - RE: forcedeth net driver: reverse mac address after pxe boot

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Message-ID: <DBFABB80F7FD3143A911F9E6CFD477B0189CAAEC@hqemmail02.nvidia.com>
Date:	Wed, 4 Oct 2006 11:06:30 -0700
From:	"Ayaz Abdulla" <AAbdulla@...dia.com>
To:	"Alan Cox" <alan@...rguk.ukuu.org.uk>,
	"Alex Owen" <r.alex.owen@...il.com>
Cc:	<linux-kernel@...r.kernel.org>,
	<c-d.hailfinger.kernel.2004@....net>
Subject: RE: forcedeth net driver: reverse mac address after pxe boot

This is a known issue and has been fixed in the latest PXE code. I will
have to find that information for you guys. Can one of you open a bug to
formally keep track of it.

Thanks,
Ayaz

-----Original Message-----
From: Alan Cox [mailto:alan@...rguk.ukuu.org.uk] 
Sent: Wednesday, October 04, 2006 10:31 AM
To: Alex Owen
Cc: linux-kernel@...r.kernel.org; c-d.hailfinger.kernel.2004@....net;
Ayaz Abdulla
Subject: Re: forcedeth net driver: reverse mac address after pxe boot


Ar Mer, 2006-10-04 am 17:19 +0100, ysgrifennodd Alex Owen:
> The obvious fix for this is to try and read the MAC address from the
> canonical location... ie where is the source of the address writen
> into the controlers registers at power on? But do we know where that
> may be?

Why not check if the first or last 3 bytes are the Nvidia owner bits.
The only card that will misdetect is 

00:16:17:17:16:00

which doesn't matter anyway

Alan

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