From mboxrd@z Thu Jan  1 00:00:00 1970
From: Alexander Duyck <alexander.duyck@gmail.com>
Subject: Re: Question about unsupported transceivers
Date: Tue, 13 Oct 2015 13:34:26 -0700
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On 10/13/2015 11:57 AM, Alex Forster wrote:
> I believe I've discovered my problem: https://gist.github.com/AlexForster/0fb4699bcdf196cf5462
>
> As mentioned previously, I have two X520-Q1 cards installed. It appears that initialization of the first card obeys allow_unsupported_sfp=1, but initialization of the second card does not.
>
> Is this a bug, or is there a way to work around this that I'm not aware of?
>
> Alex Forster

If you are using Intel's out-of-tree ixgbe driver I believe the module 
parameters are comma separated with one index per port.  So if you have 
two ports you should be passing "allow_unsupported_sfp=1,1", and for 4 
you would need four '1's.

- Alex