ipf_state_flush
ipf_state_flush(softc, 1, 0);
(void) ipf_state_flush(softc, 2, 0);
ret = ipf_state_flush(softc, arg, 4);
ret = ipf_state_flush(softc, arg, 6);
extern int ipf_state_flush(ipf_main_softc_t *, int, int);