Re: ixg and SFPs in NetBSD 10_RC1

[David Brownlee <abs%netbsd.org@localhost>]

On Sun, 26 Nov 2023 at 20:57, Lloyd Parkes
<lloyd%must-have-coffee.gen.nz@localhost> wrote:
>
> On Sat, 2023-11-25 at 15:30 +1300, Lloyd Parkes wrote:
> > Hi all,
> > I recently found a source of cheap second hand ixg(4) cards and so
> > I've
> > started swapping out some Linux+Emulex/Mellanox for some
> > NetBSD+Intel.
> >
> > When I plugged in one of my SFP+ DACs to the ixg I got the message
> > "Unsupported SFP+ module type was detected".
>
> It seems that these DACs don't set the passive DAC bit in byte 8 of the
> SFP A0 EEPROM. I did a quick hack of the driver to pretend that but was
> set and ifconfig -m ixg1 now reports "media 10Gbase-Twinax", but it
> doesn't detect a carrier.
>
> It might be more cost effective for me to buy some "Finisar" optics
> from Aliexpress.

Would it be worth test booting a FreeBSD or Linux image to see if they
work under that (to confirm if it's a driver issue)?

David