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 for freebsd-net@freebsd.org; Wed, 27 Nov 2013 20:40:03 -0500
From: George Neville-Neil <gnn@neville-neil.com>
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Subject: If you work on a driver that supports pluggable optics or cables...
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Date: Wed, 27 Nov 2013 20:40:07 -0500
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Howdy,

I just added sff8472.h to sys/net which allows driver writers to get =
information on SFF/SFP+ optics and
cables across i2c more easily.  Navdeep (np@) has added the relevant =
code to tools/tools/cxgbetool
to show how to use these values to get information from cables plugged =
into NICs.  Can those
of you who work on the various drivers that have an I2C interface to the =
cabling please look at that
include file and the cxgbetool program and start adding your own code to =
handle this in a similar way?
It=92s a great help to those working with hardware in large data centers =
when they can see things like this:

trantor:~# cxgbetool t5nex0 modinfo 1
 ID: SFP
 Vendor FINISAR CORP.
 SN AJ10JQR
 PN FTLX8571D3BCL
 Rev A
 Temp: +35C
 Vcc 3.225600V
 TX Bias 2.176000uA
 TX Power 0.588800mW
 RX Power 0.486400mW

Best,
George