tx_tail           100 dev/isa/if_ex.c   	u_int tx_head, tx_tail; /* Head and tail of transmit ring buffer. */
tx_tail           379 dev/isa/if_ex.c 	sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
tx_tail           437 dev/isa/if_ex.c 		if ((i = sc->tx_tail - sc->tx_head) >= 0)
tx_tail           459 dev/isa/if_ex.c       			dest = sc->tx_tail;
tx_tail           462 dev/isa/if_ex.c 				if ((sc->tx_upper_limit + 2 - sc->tx_tail) <= 
tx_tail           504 dev/isa/if_ex.c 			if (sc->tx_head != sc->tx_tail) {
tx_tail           505 dev/isa/if_ex.c 				if (sc->tx_tail != dest) {
tx_tail           528 dev/isa/if_ex.c 			if (sc->tx_head == sc->tx_tail) {
tx_tail           538 dev/isa/if_ex.c 			sc->tx_tail = next;
tx_tail           576 dev/isa/if_ex.c 	sc->tx_head = sc->tx_tail = sc->tx_lower_limit;
tx_tail           652 dev/isa/if_ex.c 	while (sc->tx_head != sc->tx_tail) {