s = splimp();
s = splnet();
vr_tick(xsc)	void *xsc;{	struct vr_softc *sc = xsc;	int s;	s = splimp();	if (sc->vr_flags & VR_F_RESTART) {		printf("%s: restarting\n", sc->sc_dev.dv_xname);		vr_stop(sc);		vr_reset(sc);   		vr_init(sc);		sc->vr_flags &= ~VR_F_RESTART;	}           	mii_tick(&sc->sc_mii);	timeout_add(&sc->sc_to, hz);	splx(s);}