On Wed, Oct 31, 2012 at 8:21 AM, paolo faverio <fpaolo63@xxxxxxxxx> wrote: > Thanks Bjorn, > I'm going to dig on it. > > one silly question > Enabling both the RC, do l have 255 pci bus ids for each PCI segment > group? Yes. 256, actually (0x00-0xff). > On Wed, Oct 31, 2012 at 1:23 PM, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: >> >> On Wed, Oct 31, 2012 at 4:02 AM, fpaolo63 <fpaolo63@xxxxxxxxx> wrote: >> > Hi guru, >> > >> > I'm working on a multi socket intel xeon platform. >> > >> > We have 2 sockets and each socket has a PCIe RootComplex, and we'd to >> > implement hw with 2 separated PCIe tree. >> > >> > Can Linux kernel handle the 2 RC assigning a PCIe domain each one? >> > >> > Do we need special BIOS in order to configure correctly the 2 sockets, >> > QDPI >> > channel, MMIO and MMU? >> > >> > Can some one point me to one example or documents? >> >> Yes, Linux supports multiple PCI domains (also known as PCI segment >> groups). >> >> On x86, the BIOS should provide a ACPI PNP0A08/PNP0A03 device for each >> root complex. See drivers/acpi/pci_root.c for details. > > -- 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
