Searched refs:tx_head (Results 1 – 1 of 1) sorted by relevance
110 u_int tx_head, tx_tail; /* Head and tail of transmit ring buffer. */ member391 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;449 if ((i = sc->tx_tail - sc->tx_head) >= 0)516 if (sc->tx_head != sc->tx_tail) {540 if (sc->tx_head == sc->tx_tail) {543 sc->tx_head = dest;587 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;663 while (sc->tx_head != sc->tx_tail) {664 ISA_PUT_2(HOST_ADDR_REG, sc->tx_head);668 sc->tx_head = ISA_GET_2(IO_PORT_REG);