Re: basic support for (software concept) "pci domains" in the MI pci code

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Mon, Aug 24, 2009 at 11:03:52PM +1000, Simon Burge wrote:
> matthew green wrote:
> 
> > there's still a story to solve wrt /dev/pci* nodes.  we only create
> > upto /dev/pci7 and that isn't enough, and this is probably what is
> > driving cegger's problem.
> 
> Without really thinking, is this a problem?  Consider that:
> 
>       pcictl pci0 list -b 2
>       pcictl pci2 list
> 
> given the same output and the first opens /dev/pci0 and the second opens
> /dev/pci2.  I don't know how these are routed in the kernel, so don't
> know if any arbitary "pciN" is the equivalent to "pci0 -b N"...

It's not. You happen to have pci2 as pci bus number 2 on your system.
On my alpha:
armandeche:/local/armandeche1/bouyer>pcictl pci0 list -b1
[nothing]
armandeche:/local/armandeche1/bouyer>pcictl pci1 list
000:03:0: Digital Equipment DC21142/21143 10/100 Ethernet (ethernet network, 
revision 0x41)
000:08:0: Digital Equipment DC21152 PCI-PCI Bridge (PCI bridge, revision 0x03)

But we don't really need '-b' ...

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--