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;
1753 	struct tcb *tcb = tx_ring->tcb_ring;  in et131x_init_send()  local
1755 	tx_ring->tcb_qhead = tcb;  in et131x_init_send()
1757 	memset(tcb, 0, sizeof(struct tcb) * NUM_TCB);  in et131x_init_send()
1760 		tcb->next = tcb + 1;  in et131x_init_send()
1761 		tcb++;  in et131x_init_send()
1764 	tcb--;  in et131x_init_send()
1765 	tx_ring->tcb_qtail = tcb;  in et131x_init_send()
1766 	tcb->next = NULL;  in et131x_init_send()
2360 	tx_ring->tcb_ring = kcalloc(NUM_TCB, sizeof(struct tcb),  in et131x_tx_dma_memory_alloc()
2419 static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)  in nic_send_packet()  argument
2425 	struct sk_buff *skb = tcb->skb;  in nic_send_packet()
2514 	tcb->index_start = tx_ring->send_idx;  in nic_send_packet()
2515 	tcb->stale = 0;  in nic_send_packet()
2548 			tcb->index = NUM_DESC_PER_RING_TX - 1;  in nic_send_packet()
2550 			tcb->index = ET_DMA10_WRAP|(NUM_DESC_PER_RING_TX - 1);  in nic_send_packet()
2552 		tcb->index = tx_ring->send_idx - 1;  in nic_send_packet()
2558 		tx_ring->send_tail->next = tcb;  in nic_send_packet()
2560 		tx_ring->send_head = tcb;  in nic_send_packet()
2562 	tx_ring->send_tail = tcb;  in nic_send_packet()
2564 	WARN_ON(tcb->next != NULL);  in nic_send_packet()
2586 	struct tcb *tcb;  in send_packet()  local
2596 	tcb = tx_ring->tcb_qhead;  in send_packet()
2598 	if (tcb == NULL) {  in send_packet()
2603 	tx_ring->tcb_qhead = tcb->next;  in send_packet()
2610 	tcb->skb = skb;  in send_packet()
2611 	tcb->next = NULL;  in send_packet()
2613 	status = nic_send_packet(adapter, tcb);  in send_packet()
2619 			tx_ring->tcb_qtail->next = tcb;  in send_packet()
2622 			tx_ring->tcb_qhead = tcb;  in send_packet()
2624 		tx_ring->tcb_qtail = tcb;  in send_packet()
2634 				    struct tcb *tcb)  in free_send_packet()  argument
2642 	if (tcb->skb) {  in free_send_packet()
2643 		stats->tx_bytes += tcb->skb->len;  in free_send_packet()
2651 			       INDEX10(tcb->index_start);  in free_send_packet()
2660 			add_10bit(&tcb->index_start, 1);  in free_send_packet()
2661 			if (INDEX10(tcb->index_start) >=  in free_send_packet()
2663 				tcb->index_start &= ~ET_DMA10_MASK;  in free_send_packet()
2664 				tcb->index_start ^= ET_DMA10_WRAP;  in free_send_packet()
2666 		} while (desc != tx_ring->tx_desc_ring + INDEX10(tcb->index));  in free_send_packet()
2668 		dev_kfree_skb_any(tcb->skb);  in free_send_packet()
2671 	memset(tcb, 0, sizeof(struct tcb));  in free_send_packet()
2679 		tx_ring->tcb_qtail->next = tcb;  in free_send_packet()
2681 		tx_ring->tcb_qhead = tcb;  in free_send_packet()
2683 	tx_ring->tcb_qtail = tcb;  in free_send_packet()
2692 	struct tcb *tcb;  in et131x_free_busy_send_packets()  local
2700 	tcb = tx_ring->send_head;  in et131x_free_busy_send_packets()
2702 	while (tcb != NULL && freed < NUM_TCB) {  in et131x_free_busy_send_packets()
2703 		struct tcb *next = tcb->next;  in et131x_free_busy_send_packets()
2715 		free_send_packet(adapter, tcb);  in et131x_free_busy_send_packets()
2719 		tcb = tx_ring->send_head;  in et131x_free_busy_send_packets()
2738 	struct tcb *tcb;  in et131x_handle_send_pkts()  local
2750 	tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
2752 	while (tcb &&  in et131x_handle_send_pkts()
2753 	       ((serviced ^ tcb->index) & ET_DMA10_WRAP) &&  in et131x_handle_send_pkts()
2754 	       index < INDEX10(tcb->index)) {  in et131x_handle_send_pkts()
2756 		tx_ring->send_head = tcb->next;  in et131x_handle_send_pkts()
2757 		if (tcb->next == NULL)  in et131x_handle_send_pkts()
2761 		free_send_packet(adapter, tcb);  in et131x_handle_send_pkts()
2765 		tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
2767 	while (tcb &&  in et131x_handle_send_pkts()
2768 	       !((serviced ^ tcb->index) & ET_DMA10_WRAP) &&  in et131x_handle_send_pkts()
2769 	       index > (tcb->index & ET_DMA10_MASK)) {  in et131x_handle_send_pkts()
2771 		tx_ring->send_head = tcb->next;  in et131x_handle_send_pkts()
2772 		if (tcb->next == NULL)  in et131x_handle_send_pkts()
2776 		free_send_packet(adapter, tcb);  in et131x_handle_send_pkts()
2780 		tcb = tx_ring->send_head;  in et131x_handle_send_pkts()
3391 		struct tcb *tcb = tx_ring->send_head;  in et131x_isr()  local
3393 		if (tcb)  in et131x_isr()
3394 			if (++tcb->stale > 1)  in et131x_isr()
3399 		else if (tcb == NULL)  in et131x_isr()
3807 	struct tcb *tcb;  in et131x_tx_timeout()  local
3828 	tcb = tx_ring->send_head;  in et131x_tx_timeout()
3831 	if (tcb) {  in et131x_tx_timeout()
3832 		tcb->count++;  in et131x_tx_timeout()
3834 		if (tcb->count > NIC_SEND_HANG_THRESHOLD) {  in et131x_tx_timeout()
3837 				 tcb->index);  in et131x_tx_timeout()