PCI device path?

[Kevin O'Connor]

      Hi Gleb,

Did you have any thoughts on how to build the PCI device path for the
bootprio_find_X functions?

I suppose we could keep an "int parentbus[256]" and fill it with info
on the parent info of every PCI bus.  Then the build_pci_path()
function could reconstruct the path of buses back to the root.

As I understand it there could be three types of PCI buses we could
run into - the root bus 0, a pci-to-pci bridge, or a non bus 0 root
bus.

-Kevin

[Gleb Natapov]

      On Wed, Jan 05, 2011 at 09:41:53PM -0500, Kevin O'Connor wrote:
  Hi Gleb,
 
 Did you have any thoughts on how to build the PCI device path for the
 bootprio_find_X functions?
 
 I suppose we could keep an "int parentbus[256]" and fill it with info
 on the parent info of every PCI bus.  Then the build_pci_path()
 function could reconstruct the path of buses back to the root.
Sounds like good and simple solution.

  As I understand it there could be three types of PCI
buses we could
 run into - the root bus 0, a pci-to-pci bridge, or a non bus 0 root
 bus.
I guess the root bus will have -1 in its parentbus entry. It doesn't
matter what its actual number is.

--
			Gleb.