PIH_MAKE
handle = PIH_MAKE(i * 32 + n, IST_MSI, 0);
handle = PIH_MAKE(freegroup * 32 + n, IST_MSI, 0);
return PIH_MAKE(irq, ist, 0);
pq3pci_intr_source_lookup(sc, PIH_MAKE(0, IST_LEVEL, 0));