[parisc-linux] A3308 fibre SCSI bridge support

Grant Grundler grundler@dsl2.external.hp.com
Sun, 29 Dec 2002 23:45:22 -0700

On Sun, Dec 29, 2002 at 04:02:38PM -0500, Mark R. Buechler wrote:
> I recently purchased a SCSI bridge (4/2 A3308) thinking I could use this
> with Linux but when I tried I found that it requires a driver. I can see
> the MUX and all devices connected to it from an HP workstation with the
> MUX driver loaded, but I'd really like to use this from Linux.

uhm...did you check to see which utilities you might need to manage
and configure the FC/SCSI mux?

BTW, The A3308 usermanual (A3308-96011) is available here:

> I'm wondering if anyone is working on a driver for this device and would
> it work with x86 as well?

The main FC HBA vendors (except Agilent?) seem to work fine on both x86 and
ia64 (HP ZX1, near cousin to HP PARISC platforms). I would expect them
to work fine on i386/parisc-linux too. I've only had time to play with
Agilent based (tachlite 5100/5166/5200 series) HBAs on parisc.

AFAICT, "FC 4/2 MUX" is only supported under HPUX.
I get the impression one would need to heavily modify an existing
FC driver in order to support the MUX functionality. But I don't
know how the A3308 presents SCSI devices and that will make/break
the support story.