NXE_1_SW_INT_VECTOR
nxe_crb_write(sc, NXE_1_SW_INT_VECTOR, 0x80 << sc->sc_function);
nxe_crb_write(sc, NXE_1_SW_INT_VECTOR, 0x0);
vector = nxe_crb_read(sc, NXE_1_SW_INT_VECTOR);