Dear Jason Gunthorpe, On Tue, 17 Sep 2013 13:24:12 -0600, Jason Gunthorpe wrote: > > I don't have the hardware to test, but this seems to make sense to me. > > FWIW, I have tested this on Kirkwood: > > mvebu-pcie pex.1: PCI host bridge to bus 0000:00 > pci_bus 0000:00: root bus resource [mem 0xe0000000-0xf0000000] > pci_bus 0000:00: root bus resource [bus 00-ff] > pci_bus 0000:00: root bus resource [io 0x1000-0xffff] > pci 0000:00:01.0: [11ab:7846] type 01 class 0x060400 > PCI: bus0: Fast back to back transfers disabled > pci 0000:00:01.0: bridge configuration invalid ([bus 00-00]), reconfiguring > PCI: bus1: Fast back to back transfers enabled > pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01 > pci 0000:00:01.0: PCI bridge to [bus 01] > [..] > Freeing unused kernel memory: 1096K (c02ee000 - c0400000) > > .. hot plug the device .. > > echo 1 > rescan > > pci 0000:01:00.0: [170c:0001] type 00 class 0x058000 > pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x0001ffff] > pci 0000:01:00.0: PME# supported from D0 D1 D2 D3hot > pci_bus 0000:01: busn_res: [bus 01] end is updated to 01 > pci 0000:00:01.0: BAR 8: assigned [mem 0xe0000000-0xe00fffff] > pci 0000:01:00.0: BAR 0: assigned [mem 0xe0000000-0xe001ffff] > pci 0000:00:01.0: PCI bridge to [bus 01] > pci 0000:00:01.0: bridge window [mem 0xe0000000-0xe00fffff] > PCI: enabling device 0000:00:01.0 (0140 -> 0143) > PCI: enabling device 0000:01:00.0 (0000 -> 0002) Nice! Good to see that the changes needed to get PCI hotplug working were not so large :) Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- 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
