1  struct GTeth_desc
       2  {
       3    unsigned ed_cmdsts;
       4  };
       5  struct GTeth_softc
       6  {
       7    struct GTeth_desc txq_desc[32];
       8    unsigned int txq_fi;
       9    unsigned int txq_nactive;
      10  };
      11  
      12  void
      13  GTeth_txq_free (struct GTeth_softc *sc)
      14  {
      15    struct GTeth_desc *txd = &sc->txq_desc[0];
      16    txd->ed_cmdsts &= ~(1U << (31));
      17  }
      18  void
      19  GTeth_txq_done (struct GTeth_softc *sc)
      20  {
      21    while (sc->txq_nactive > 0)
      22      {
      23        volatile struct GTeth_desc *txd = &sc->txq_desc[sc->txq_fi];
      24        if (txd->ed_cmdsts)
      25  	{
      26  	  if (sc->txq_nactive == 1)
      27  	    return;
      28  	}
      29        GTeth_txq_free (sc);
      30      }
      31  }