349 struct tcb {  struct
350 	struct tcb *next;	/* Next entry in ring */  argument
361 	struct tcb *tcb_ring;  argument
364 	struct tcb *tcb_qhead;
365 	struct tcb *tcb_qtail;
368 	struct tcb *send_head;
369 	struct tcb *send_tail;
1757 	struct tcb *tcb = tx_ring->tcb_ring;  in et131x_init_send()  local
1759 	tx_ring->tcb_qhead = tcb;  in et131x_init_send()
1761 	memset(tcb, 0, sizeof(struct tcb) * NUM_TCB);  in et131x_init_send()
1764 		tcb->next = tcb + 1;  in et131x_init_send()
1765 		tcb++;  in et131x_init_send()
1768 	tcb--;  in et131x_init_send()
1769 	tx_ring->tcb_qtail = tcb;  in et131x_init_send()
1770 	tcb->next = NULL;  in et131x_init_send()
2364 	tx_ring->tcb_ring = kcalloc(NUM_TCB, sizeof(struct tcb),  in et131x_tx_dma_memory_alloc()
2421 static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)  in nic_send_packet()  argument
2427 	struct sk_buff *skb = tcb->skb;  in nic_send_packet()
2519 	tcb->index_start = tx_ring->send_idx;  in nic_send_packet()
2520 	tcb->stale = 0;  in nic_send_packet()
2553 			tcb->index = NUM_DESC_PER_RING_TX - 1;  in nic_send_packet()
2555 			tcb->index = ET_DMA10_WRAP|(NUM_DESC_PER_RING_TX - 1);  in nic_send_packet()
2557 		tcb->index = tx_ring->send_idx - 1;  in nic_send_packet()
2563 		tx_ring->send_tail->next = tcb;  in nic_send_packet()
2565 		tx_ring->send_head = tcb;  in nic_send_packet()
2567 	tx_ring->send_tail = tcb;  in nic_send_packet()
2569 	WARN_ON(tcb->next != NULL);  in nic_send_packet()
2591 	struct tcb *tcb;  in send_packet()  local
2601 	tcb = tx_ring->tcb_qhead;  in send_packet()
2603 	if (tcb == NULL) {  in send_packet()
2608 	tx_ring->tcb_qhead = tcb->next;  in send_packet()
2615 	tcb->skb = skb;  in send_packet()
2616 	tcb->next = NULL;  in send_packet()
2618 	status = nic_send_packet(adapter, tcb);  in send_packet()
2624 			tx_ring->tcb_qtail->next = tcb;  in send_packet()
2627 			tx_ring->tcb_qhead = tcb;  in send_packet()
2629 		tx_ring->tcb_qtail = tcb;  in send_packet()
2639 				    struct tcb *tcb)  in free_send_packet()  argument
2647 	if (tcb->skb) {  in free_send_packet()
2648 		stats->tx_bytes += tcb->skb->len;  in free_send_packet()
2656 			       INDEX10(tcb->index_start);  in free_send_packet()
2665 			add_10bit(&tcb->index_start, 1);  in free_send_packet()
2666 			if (INDEX10(tcb->index_start) >=  in free_send_packet()
2668 				tcb->index_start &= ~ET_DMA10_MASK;  in free_send_packet()
2669 				tcb->index_start ^= ET_DMA10_WRAP;  in free_send_packet()
2671 		} while (desc != tx_ring->tx_desc_ring + INDEX10(tcb->index));  in free_send_packet()
2673 		dev_kfree_skb_any(tcb->skb);  in free_send_packet()
2676 	memset(tcb, 0, sizeof(struct tcb));  in free_send_packet()
2684 		tx_ring->tcb_qtail->next = tcb;  in free_send_packet()
2686 		tx_ring->tcb_qhead = tcb;  in free_send_packet()
2688 	tx_ring->tcb_qtail = tcb;  in free_send_packet()
2697 	struct tcb *tcb;  in et131x_free_busy_send_packets()  local
2705 	tcb = tx_ring->send_head;  in et131x_free_busy_send_packets()
2707 	while (tcb != NULL && freed < NUM_TCB) {  in et131x_free_busy_send_packets()
2708 		struct tcb *next = tcb->next;  in et131x_free_busy_send_packets()
2720 		free_send_packet(adapter, tcb);  in et131x_free_busy_send_packets()
2724 		tcb = tx_ring->send_head;  in et131x_free_busy_send_packets()
2743 	struct tcb *tcb;  in et131x_handle_send_pkts()  local
2755 	tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
2757 	while (tcb &&  in et131x_handle_send_pkts()
2758 	       ((serviced ^ tcb->index) & ET_DMA10_WRAP) &&  in et131x_handle_send_pkts()
2759 	       index < INDEX10(tcb->index)) {  in et131x_handle_send_pkts()
2761 		tx_ring->send_head = tcb->next;  in et131x_handle_send_pkts()
2762 		if (tcb->next == NULL)  in et131x_handle_send_pkts()
2766 		free_send_packet(adapter, tcb);  in et131x_handle_send_pkts()
2770 		tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
2772 	while (tcb &&  in et131x_handle_send_pkts()
2773 	       !((serviced ^ tcb->index) & ET_DMA10_WRAP) &&  in et131x_handle_send_pkts()
2774 	       index > (tcb->index & ET_DMA10_MASK)) {  in et131x_handle_send_pkts()
2776 		tx_ring->send_head = tcb->next;  in et131x_handle_send_pkts()
2777 		if (tcb->next == NULL)  in et131x_handle_send_pkts()
2781 		free_send_packet(adapter, tcb);  in et131x_handle_send_pkts()
2785 		tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
3397 		struct tcb *tcb = tx_ring->send_head;  in et131x_isr()  local
3399 		if (tcb)  in et131x_isr()
3400 			if (++tcb->stale > 1)  in et131x_isr()
3405 		else if (tcb == NULL)  in et131x_isr()
3818 	struct tcb *tcb;  in et131x_tx_timeout()  local
3839 	tcb = tx_ring->send_head;  in et131x_tx_timeout()
3842 	if (tcb) {  in et131x_tx_timeout()
3843 		tcb->count++;  in et131x_tx_timeout()
3845 		if (tcb->count > NIC_SEND_HANG_THRESHOLD) {  in et131x_tx_timeout()
3848 				 tcb->index);  in et131x_tx_timeout()