Re: ifconfig -v ix0 output delay

From: Kurt Jaeger <>
Date: Tue, 26 Sep 2023 13:33:45 UTC

> > >         A small annoyance, but I was wondering why "ifconfig -v ix0" seems to take
> > > a "long time" compared to other 10G nics.   e.g.
> > [...]
> > 
> > Which version of the ix driver did you load ? The base one or
> > the one from the ports, net/intel-ix-kmod ? I'm not sure
> > is reading this list, so maybe pointing
> > them to the issue via some PR would be useful.
> This is just the base driver, built in ix with copper PHY

I tested it with two ports on a 13.2p3 box with the port intel-ix-kmod
in version 3.3.35 and the ports behave like you have observed:

ix<n> NICs with SFP+ cage display the optics info, if available.
ix<n> NICs with copper-port have approx. 0.4s delay.

I guess that the driver should know if a certain model of the
NIC has a SFP+ cage with some i2c bus -- and if it's copper-only, it
should not query the bus.

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