Commit e18934b5 authored Aug 29, 2016 by Po Liu Committed by Bjorn Helgaas Sep 12, 2016

PCI: designware: Relax device number checking to allow SR-IOV



Previously we only allowed device 0 to be directly attached to the root
port.  But SR-IOV devices may use non-zero device numbers for VFs.

Remove the restriction that only device 0 may be attached to a root port.

[bhelgaas: changelog]
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>

parent d99e30b7

drivers/pci/host/pcie-designware.c

+0 −7

Original line number	Diff line number	Diff line
		@@ -670,13 +670,6 @@ static int dw_pcie_valid_config(struct pcie_port *pp,
		if (bus->number == pp->root_bus_nr && dev > 0)
		return 0;

		/*
		* do not read more than one device on the bus directly attached
		* to RC's (Virtual Bridge's) DS side.
		*/
		if (bus->primary == pp->root_bus_nr && dev > 0)
		return 0;

		return 1;
		}