TF_XMITNOW
tp->t_flags |= TF_XMITNOW;
tp->t_flags |= TF_XMITNOW;
tp->t_flags |= TF_XMITNOW;
tp->t_flags &= ~(TF_ACKNOW | TF_XMITNOW);
tp->t_flags &= ~(TF_ACKNOW | TF_XMITNOW);
tp->t_flags &= ~(TF_ACKNOW | TF_XMITNOW);
if (tp->t_flags & TF_XMITNOW)
tp->t_flags &= ~TF_XMITNOW;