[ipxe-devel] Intel 82576 MAC swapping

[Anton D. Kachalov]

Kieran,

regarding to "igb" driver, offset (in words) to EEPROM's MAC should be placed at 0x37 (in words) of EEPROM (page 178, table 6-1). It is 0xffff.

Try the attached patch.

I accidentally has added left shift by 2 instead of 1 :))

>>   if ( ( rc = nvs_read ( &intel->eeprom, 0x37 << 2 /* NVM_ALT_MAC_ADDR_PTR */,
>>
>>   to this one:
>>
>>   if ( ( rc = nvs_read ( &intel->eeprom, 0x37 << 1 /* NVM_ALT_MAC_ADDR_PTR */,


27.07.2012, 19:01, "Kieran Evans" <keyz182 at gmail.com>:

>  Anton, no luck there I'm afraid.
>
>  http://dbyz.co.uk/ipxe4.png
>
>  If you check the EEPROM dumps I sent earlier, you'll see that there is
>  only one MAC in the whole EEPROM. Looking for it at different offsets
>  will return garbage.
>
>  Just to be sure, I dumped the EEPROM from both interfaces (both linked
>  in an earlier email) and they are identical, so they are sharing the
>  same EEPROM.
>
>  /Kieran
>
>  On 27/07/2012 14:55, Anton D. Kachalov wrote:
>>   Kieran,
>>
>>   my fault.
>>
>>   Fix this line:
>>
>>   if ( ( rc = nvs_read ( &intel->eeprom, 0x37 /* NVM_ALT_MAC_ADDR_PTR */,
>>
>>   to this one:
>>
>>   if ( ( rc = nvs_read ( &intel->eeprom, 0x37 << 2 /* NVM_ALT_MAC_ADDR_PTR */,


-- 
Anton D. Kachalov

ITO, R&D group, Senior System Engineer
Tel: +7 (495) 739-70-00 ext.7613
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