pci_write_long(sc, PCICFG_GRC_ADDRESS, PCICFG_VENDOR_ID_OFFSET);
sc->igu_base_addr = IS_VF(sc) ? PXP_VF_ADDR_IGU_START : BAR_IGU_INTMEM;
pci_write_long(sc, PCICFG_GRC_ADDRESS, PCICFG_VENDOR_ID_OFFSET);
sc->igu_base_addr = IS_VF(sc) ? PXP_VF_ADDR_IGU_START : BAR_IGU_INTMEM;