Lines Matching refs:tx_head
384 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
455 if ((i = sc->tx_tail - sc->tx_head) >= 0) {
532 if (sc->tx_head != sc->tx_tail) {
558 if (sc->tx_head == sc->tx_tail) {
561 sc->tx_head = dest;
603 sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
677 while (sc->tx_head != sc->tx_tail) {
678 CSR_WRITE_2(sc, HOST_ADDR_REG, sc->tx_head);
684 sc->tx_head = CSR_READ_2(sc, IO_PORT_REG);
932 sc->tx_head = sc->tx_lower_limit;
933 sc->tx_tail = sc->tx_head + XMT_HEADER_LEN + (count + 1) * 6;
945 sc->tx_head = sc->tx_tail;