On Mon, Oct 19, 2020 at 10:55 AM Stuart Henderson <s...@spacehopper.org> wrote:
>
> On 2020-10-19, Harald Dunkel <harald.dun...@aixigo.com> wrote:
> > Hi folks,
> >
> > I am about to order 2 network appliances, providing an
> > "Inphi CS4223 for 4x 10GbE SFP+".
>
> This is the PHY (physical interface layer) not the NIC type itself.
> Since the gigabit are listed as i211 (which *is* a NIC type) it would
> seem likely they are attached to the main chipset.
>
> I can't say for sure but I think there's a high chance that the 10G
> will work, and at least some of the 1G will work, but you might run into
> problems with the 1G "bypass" ports.
>
> dmesg would be of interest :)
>
>

1G works over the SFP , I don't remember having a bypass port on the SFPs
when i tested the thing

Very difficult to have more speed, apparently some kernel quirks are
limiting that
according to comment in the code i saw.

I tested against a dlink ethernet to SFP , on loopback and with some
deverton based
hardware.

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