PCI: Handle Enhanced Allocation capability for SR-IOV devices
SR-IOV BARs can be specified via EA entries. Extend the EA parser to
extract the SRIOV BAR resources, and modify sriov_init() to use resources
previously obtained via EA.
Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sean O. Stalley <sean.stalley@intel.com>
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 8d796c0..364f98b 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2176,6 +2176,12 @@
{
if (bei <= PCI_EA_BEI_BAR5 && prop <= PCI_EA_P_IO)
return &dev->resource[bei];
+#ifdef CONFIG_PCI_IOV
+ else if (bei >= PCI_EA_BEI_VF_BAR0 && bei <= PCI_EA_BEI_VF_BAR5 &&
+ (prop == PCI_EA_P_VF_MEM || prop == PCI_EA_P_VF_MEM_PREFETCH))
+ return &dev->resource[PCI_IOV_RESOURCES +
+ bei - PCI_EA_BEI_VF_BAR0];
+#endif
else if (bei == PCI_EA_BEI_ROM)
return &dev->resource[PCI_ROM_RESOURCE];
else