Re: ixg and SFPs in NetBSD 10_RC1

[Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost>]

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.

Cheers,
Lloyd