PCIR_SUBVEND_0
subvendor = pci_config_read_reg(selp, nvl, PCIR_SUBVEND_0, 2,
pci_set_cfgdata16(pi, PCIR_SUBVEND_0, subvendor);
pci_set_cfgdata16(pi, PCIR_SUBVEND_0, E82545_VENDOR_ID_INTEL);
case PCIR_SUBVEND_0:
pci_set_cfgdata16(pi, PCIR_SUBVEND_0, VIRTIO_SUBVEN_INPUT);
pci_set_cfgdata16(pi, PCIR_SUBVEND_0, VIRTIO_VENDOR);