SFF 8472, aka what optic is plugged into my network card...

[George Neville-Neil]

Howdy,

Modern 10G NICs have the ability to have different types of cables plugged into them.
There is a standard for the values contained in the cables which can be read here:

http://www.10gtek.com/templates/wzten/pdf/SFF-8472-(Diagnostic%20Monitoring%20Interface).pdf

It's probably the case that several NIC cards support changeable optics on FreeBSD at this point.
I know that Chelsio T4 cards do.  I would like to put proper definitions from this document
into our source code.  Does anyone have a preference for where and how this is done?

I figure something like net/sff8472.h would be the way to go.

Comments?

Best,
George