netdev - Re: Optics (SFP) monitoring on ixgbe and igbe

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Message-ID: <1352473713.3159.4.camel@bwh-desktop.uk.solarflarecom.com>
Date:	Fri, 9 Nov 2012 15:08:33 +0000
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	<footplus@...il.com>
CC:	<netdev@...r.kernel.org>
Subject: Re: Optics (SFP) monitoring on ixgbe and igbe

On Thu, 2012-11-08 at 01:39 +0100, Aurélien wrote:
> On Wed, Nov 7, 2012 at 8:58 PM, Ben Hutchings <bhutchings@...arflare.com> wrote:
> > On Wed, 2012-11-07 at 13:27 +0100, Aurélien wrote:
> >
> > We just added the ETHTOOL_GMODULEINFO and ETHTOOL_GMODULEEEPROM
> > interface for this purpose.  The diagnostics obviously aren't really an
> > EEPROM but I don't think that matters.
> >
> > These drivers should report a type of ETH_MODULE_SFF_8472 (assuming a
> > module is present) and expose an 'EEPROM' with the real EEPROM in the
> > first 256 bytes and the diagnostic registers in the next 256 bytes.
> >
> > Decoding of the diagnostic registers can be done in ethtool itself.
> >
> 
> Hi Ben,
> 
> Thanks for this reply.
> 
> I did not see these interfaces in my searches, but from what I gather
> from the code, the missing part is the actual decoding of the data in
> ethtool.
[...]

No, the driver also needs to implement ethtool_ops::get_module_info and
ethtool_ops::get_module_eeprom.  But those should be quite easy to do.

Ben.

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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