Re: [PATCH 0/5][RFC] Physical PCI slot objects

Matthew Wilcox
2007-11-14T00:10:25Z

On Tue, Nov 13, 2007 at 03:33:14PM -0800, Kristen Carlson Accardi wrote:
> As far as being able to retrieve the slot number (which it seemed from
> the HP manageablity application perspective is the goal here), that
> information is available from userspace as well for at least standard PCI
> and pcie based systems for occupied slots. For standard pci, you have
> to make something up anyway - for shpchp we just use an incremental
> number and combine it with the bus number to represent the slot. For
> pcie, you can get this info from the slot capabilities register.

Ummm ... that's not what the /spec/ says. I've never worked on any shpc
machines, but the shpc driver reads the slot values from the SLOT_CONFIG
register, just like the spec says to.

I don't understand how you're supposed to get the slot number for
standard PCI for occupied slots. Could you explain?

--
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