Message-ID: <BF9651D8732ED311A61D00105A9CA31503515850@berkeley.gci.com> From: Leif Sawyer <lsawyer@gci.com> Date: Wed, 24 Jan 2001 08:24:20 -0900 Subject: RE: [suse-sparc] quad ethernet
Joshua Uziel [uzi@suse.com] writes:
> * Witvliet, Hans <Hans.Witvliet@Alcatel.nl> [010124 07:59]:
> > Question 1) Is this board supported by linux?
>
> Yes, a qfe is 4 hme interfaces, and it is supported just fine.
>
Well, yes. Depends on the kernel rev. versions prior to 2.2.18
would kernel panic depending on your config.
> > Question 3) Is SUN's estimation correct, that no more than
> > ONE board per system is advisable?
>
> I've not tried it under Linux [...]. Someone was complaining
> about two not working together in their machine [...]
> a few months ago.
C'est moi. The problem was that the kernel would ID the board
correctly from PROM. It would then statically count 4 iterations
for the 4 interfaces. In theory, this works great.
[Granted, all of this information comes from my experience with
Linux on an UltraSparc 2, dual-300.. YMMV ]
When you add a second board, PROM doesn't keep track of both boards
like you would think. Instead of keeping track of 2 separate boards,
what it does is arrange the interfaces into a single logical segment.
Thus it looks like an 8-port interface, rather than a 4 port.
So linux never sees it.
I haven't checked the recent 2.4.0+ kernels (last I checked was 0-test5)
to see if my patches have made it through. I guess I'll have to
take some time to re-check it, or possibly redo my patches to support
more than 4 ports.
Good luck!
This archive was generated by hypermail 2.1.0 : Wed Jun 06 2001 - 11:08:36 PDT