netdev - Re: [PATCH] [ETHTOOL]: Add support for large eeproms

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Message-ID: <4810CEB6.60707@linux.vnet.ibm.com>
Date:	Thu, 24 Apr 2008 15:17:26 -0300
From:	Breno Leitao <leitao@...ux.vnet.ibm.com>
To:	David Miller <davem@...emloft.net>
CC:	thockin@...gle.com, msb@...gle.com, netdev@...r.kernel.org,
	jeff@...zik.org, joe@...ches.com, nil@...gle.com, matthew@....cx
Subject: Re: [PATCH] [ETHTOOL]: Add support for large eeproms

David Miller wrote:
> From: "Tim Hockin" <thockin@...gle.com>
> Date: Tue, 15 Apr 2008 10:07:21 -0700
>
>   
>> No device that I know of behaves that way.  It's certainly possible,
>> but I've never seen any sort of PROM device that has such a
>> requirement.
>>     
>
> Fair enough, let's apply the patch and see if anything explode :)
>   
I've just applied this patch, and I got something really strange now.  I 
got the following message "Magic number 0x00000000 does not match 0x669955aa
" when I try to dump the eeprom from my tg3 card (BCM5780S rev. 03). I 
suppose that somehow it isn't getting the correct NIC magic number.

Well, without the patch, I just got a "Cannnot allocate enough memory" 
message when I rung the ethtool command, but if I pass the length 
argument < 128k, then everything went ok.
Now, with the patch applied, I can't even dump  even using the length 
parameter, since I hit the same Magic number error.

Note that I didn't run the kernel from your tree, I just backport this 
patch to my current kernel 2.6.16, and tried it over a ppc machine. I'll 
run the kernel from your tree later and then post the result.

--
Breno Leitão
leitao@...ux.vnet.ibm.com
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