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From: Terry Lambert <terry@lambert.org>
Message-Id: <199612052030.NAA19852@phaeton.artisoft.com>
Subject: Re: pci-pci bridge on HP netserver
To: se@freebsd.org (Stefan Esser)
Date: Thu, 5 Dec 1996 13:30:18 -0700 (MST)
Cc: Terje.N.Marthinussen@cc.uit.no, Freebsd-current@freebsd.org
In-Reply-To: <Mutt.19961205132330.se@x14.mi.uni-koeln.de> from "Stefan Esser" at Dec 5, 96 01:23:30 pm
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> > It has 5 PCI slots on two pci busses.
> > The default FreeBSD kernel is not able to find the two onboard Adaptec
> > aic7870 PCI controllers that is on the second pci bus.

[ ... ]

> > All what seems to be needed is to bounce 'pciroots' like it is done with 
> > the Orion chipset (I now boot it by just hardcoding the right value in 
> > pci.c).
> > 
> > I could write this patch myself, however, I don't have, or know where 
> > to get the information needed (is it enough to just bounce pciroots
> > with '1' or is something more general needed?). I'm not even sure about 
> 
> NO! Hardcoding to 1 does not work!
> Think about any PCI card with an integrated PCI to PCI 
> bridge in bus 0 (an AH3940 or a 4channel Ethernet card,
> for example). The chips behind that bridge will be on
> bus 1, the second PCI bus on the motherboard will be 2
> now ...

I don't suppose the PCI code could be changed to dynamically allocate
as many busses as are found... ?


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.