[Open-graphics] A really good immediate use for OGD1: PCI bus analyzer

[tsuraan]

> pre-installed with support at a premium.  The only thing about this
> that's a major drawback is that the market is waning rapidly as PCI
> Express takes over.

How different from PCIe is PCI?  Will the work being done on the PCI
interface be in any way useful for moving to PCIe?  Obviously, the
pinout is totally different, so the cards being made won't work, but
other than a bit of re-routing, how hard would adapting OGD1 to PCIe
be?