PCIR_CACHELNSZ
pci_read_config(dev, PCIR_CACHELNSZ, 1) != 0)
val = pci_read_config(sc->msk_dev, PCIR_CACHELNSZ, 1);
pci_write_config(sc->msk_dev, PCIR_CACHELNSZ, 2, 1);
cz = pci_read_config(dev, PCIR_CACHELNSZ, 1);
pci_write_config(dev, PCIR_CACHELNSZ,