Also, I'm not sure what you mean by 0xBABA. That would be an interesting 
coincidence if the checksum was 0xBABA, but the checksum should be recalculated 
when the iNVM is changed. There could be a chance that whoever programmed the 
part was using an older broken version of the programming tool.

The reason you may not see the i211 specifically mentioned is because the parts 
are in an enum and very often we just refer to the i210 & i211 with an 
inequality.

You should contact whoever sold you the parts first. We can also put you in 
touch with our local representatives in Europe who should be able to help you 
further with the iNVM.

Thanks.

Todd Fujinaka
Software Application Engineer
Networking Division (ND)
Intel Corporation
[email protected]
(503) 712-4565

-----Original Message-----
From: Ronciak, John [mailto:[email protected]] 
Sent: Monday, April 14, 2014 11:42 AM
To: Holger Eitzenberger; [email protected]
Subject: Re: [E1000-devel] igb: v5.2.5 fails doing NVM checksum check on i211

> Hi,
> 
> using the IGB driver v5.2.5 together with several i211 NICs I see that 
> all of them are not correctly set up because of NVM checksum errors 
> reported.
> 
> Adding a few debug messages I get:
> 
> [    2.605249] e1000_validate_nvm_checksum_generic
> [    2.605483] e1000_validate_nvm_checksum_generic: checksum=26798
> NVM_SUM=47802
> [    2.605500] igb 0000:01:00.0: The NVM Checksum Is Not Valid
> 
> Instead of the expected 0xBABA I get 0x68AE.
> 
> Linux kernel v3.8 does not set a callback for i211, but does so for
> i210 e. g.
> 
> However, skimming through the i211 data sheet I don't see any 
> reference to the 0xBABA checksum word.  And because I saw i210 
> mentioned in the
> v3.8 driver I checked this data sheet as well.  In the i210 dats sheet 
> I see the 0xBABA checksum word documented properly.
> 
> Is this is a bug in the v5.2.5 driver?  Or do I have to contact system 
> manufacturer for updating NVM?
> 
> Thanks!
> 
>  /Holger
If the driver is reporting an invalid NVM then it most like is invalid.  Have 
you tried to update the BIOS on this (these) system(s)?  A lot of time the NVM 
is updated during a BIOS update.  So I'd start there.

Cheers,
John



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