Help needed: 3Com Ethernet Controll

[Steve Grandi]

In article <14900042 at uiucdcsb> richards at uiucdcsb.CS.UIUC.EDU writes:
>
>It looks like your configuration of the board is correct, but I suspect
>that one of your other Unibus drivers are requesting a dedicated part
>of the Unibus Map before the 3com board is initialized, preventing it
>from properly acquiring the lowest part of the Unibus address space.
>
>The Fix?  Put the "device ec0 ..." entry *before* any other unibus devices
>in your configuration file, rebuild the kernel, and try it.  Devices are
>probed and attached in the order they appear in the configuration file.
>
Unfortunately, all CONTROLLERS are probed before any DEVICES so the UDA-50/RA
driver will still get in and grab the Unibus memory first.  It is a
simple hack to autoconf.c to reverse this order so all devices get probed
first; I had to do this for one of my 750s with a UDA-50 and a 3-Com card on
the same Unibus when I switched to the RIACS UDA driver.
-- 
Steve Grandi, National Optical Astronomy Observatories, Tucson, AZ, 602-325-9228
{arizona,decvax,hao,ihnp4,seismo}!noao!grandi  grandi%draco at Hamlet.Caltech.Edu