Hi, Thank you for taking interest. I see no chance of that happening as I'm only two down stream ports of my pci switch. Upstream, I only use one port to connect the host pci bridge. Internally, it divides into multiple bridges. I'm thinking of walking downstream only _up_to_ the entry pci bridge of the switch and not any further.
Please see chart for clearer explanation of topology I'm working on. http://www.electronicproducts.com/images2/FAJH_PLX_3_Nov2008.gif ~amerei On Thu, Jul 17, 2014 at 12:47 PM, <[email protected]> wrote: > On Thu, 17 Jul 2014 05:58:03 +0800, Amerei Acuna said: > > > I'm writing a custom PCI driver for a hobby endpoint. Due to some > > "special", possibly unique, circumstance, I need to determine if two > > devices form a pair. As I'm using a PCI switch to connect these two > > devices, I'm thinking on the possibility of checking if the two devices > > share a common pci-pci bridge (or finding the least common ancestor in a > > directed graph). > > What happens if your two devices and a totally unrelated PCI device > are all three downstream of the same PCI bridge? > >
_______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
