96 	(((CP)->tx_tail <= (CP)->tx_head) ?			\
97 	  (CP)->tx_tail + (DE_TX_RING_SIZE - 1) - (CP)->tx_head :	\
98 	  (CP)->tx_tail - (CP)->tx_head - 1)
293 	unsigned		tx_tail;  member
506 		  de->rx_tail, de->tx_head, de->tx_tail);  in de_interrupt()
542 	unsigned tx_tail = de->tx_tail;  in de_tx()  local
544 	while (tx_tail != tx_head) {  in de_tx()
549 		status = le32_to_cpu(de->tx_ring[tx_tail].opts1);  in de_tx()
553 		skb = de->tx_skb[tx_tail].skb;  in de_tx()
560 					 de->tx_skb[tx_tail].mapping,  in de_tx()
566 		dma_unmap_single(&de->pdev->dev, de->tx_skb[tx_tail].mapping,  in de_tx()
587 					  "tx done, slot %d\n", tx_tail);  in de_tx()
593 		de->tx_skb[tx_tail].skb = NULL;  in de_tx()
595 		tx_tail = NEXT_TX(tx_tail);  in de_tx()
598 	de->tx_tail = tx_tail;  in de_tx()
895 	de->tx_head = de->tx_tail = 0;  in de_stop_hw()
1316 	de->tx_head = de->tx_tail = 0;  in de_init_rings()
1453 		   de->rx_tail, de->tx_head, de->tx_tail);  in de_tx_timeout()