SOFT_TXINTR
atomic_or_uint(&sc->sc_soft_flags, SOFT_TXINTR);
soft_flags |= SOFT_TXINTR;
if ((soft_flags & SOFT_TXINTR)
atomic_or_uint(&sc->sc_soft_flags, SOFT_TXINTR);
atomic_or_uint(&sc->sc_soft_flags, SOFT_TXINTR);
if ((soft_flags & SOFT_TXINTR)