On 01/29/2013 02:59 PM, Thomas Petazzoni wrote: > Arnd, > > On Tue, 29 Jan 2013 21:33:08 +0100, Thomas Petazzoni wrote: > >> Basically, I have currently two suggestions: >> >> * From Jason Gunthorpe, to not use any host bridge, and instead use >> only PCI-to-PCI bridges, one per PCIe interface. >> >> * From you, to not use any PCI-to-PCI bridge, and use only host >> bridges, one per PCIe interface. > > Thinking more about this, this solution (using one emulated host bridge > per PCIe interface) would cause one problem: the PCIe device itself > would no longer be in slot 0. I think that's device 0 not slot 0 right? > If I'm correct, with one host bridge per PCIe interface, we would have > the following topology: > > bus 0, slot 0: emulated host bridge 0 > bus 0, slot 1: PCIe device connected to PCIe interface 0 I /think/ the bus that the root port itself is on is different from the bus that the downstream device is on, so wouldn't you end up with: bus 0, slot 0: emulated host bridge 0 bus 1, slot 0: PCIe device connected to PCIe interface 0 (and isn't that "root port" not "host bridge" in the first line above?) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
