316 	struct spider_net_descr *descr;  in spider_net_free_chain()  local
318 	descr = chain->ring;  in spider_net_free_chain()
320 		descr->bus_addr = 0;  in spider_net_free_chain()
321 		descr->hwdescr->next_descr_addr = 0;  in spider_net_free_chain()
322 		descr = descr->next;  in spider_net_free_chain()
323 	} while (descr != chain->ring);  in spider_net_free_chain()
344 	struct spider_net_descr *descr;  in spider_net_init_chain()  local
360 	descr = chain->ring;  in spider_net_init_chain()
363 	for (i=0; i < chain->num_desc; i++, descr++, hwdescr++) {  in spider_net_init_chain()
367 		descr->hwdescr = hwdescr;  in spider_net_init_chain()
368 		descr->bus_addr = buf;  in spider_net_init_chain()
369 		descr->next = descr + 1;  in spider_net_init_chain()
370 		descr->prev = descr - 1;  in spider_net_init_chain()
375 	(descr-1)->next = chain->ring;  in spider_net_init_chain()
376 	chain->ring->prev = descr-1;  in spider_net_init_chain()
393 	struct spider_net_descr *descr;  in spider_net_free_rx_chain_contents()  local
395 	descr = card->rx_chain.head;  in spider_net_free_rx_chain_contents()
397 		if (descr->skb) {  in spider_net_free_rx_chain_contents()
398 			pci_unmap_single(card->pdev, descr->hwdescr->buf_addr,  in spider_net_free_rx_chain_contents()
401 			dev_kfree_skb(descr->skb);  in spider_net_free_rx_chain_contents()
402 			descr->skb = NULL;  in spider_net_free_rx_chain_contents()
404 		descr = descr->next;  in spider_net_free_rx_chain_contents()
405 	} while (descr != card->rx_chain.head);  in spider_net_free_rx_chain_contents()
420 			    struct spider_net_descr *descr)  in spider_net_prepare_rx_descr()  argument
422 	struct spider_net_hw_descr *hwdescr = descr->hwdescr;  in spider_net_prepare_rx_descr()
434 	descr->skb = netdev_alloc_skb(card->netdev,  in spider_net_prepare_rx_descr()
436 	if (!descr->skb) {  in spider_net_prepare_rx_descr()
449 	offset = ((unsigned long)descr->skb->data) &  in spider_net_prepare_rx_descr()
452 		skb_reserve(descr->skb, SPIDER_NET_RXBUF_ALIGN - offset);  in spider_net_prepare_rx_descr()
454 	buf = pci_map_single(card->pdev, descr->skb->data,  in spider_net_prepare_rx_descr()
457 		dev_kfree_skb_any(descr->skb);  in spider_net_prepare_rx_descr()
458 		descr->skb = NULL;  in spider_net_prepare_rx_descr()
558 	struct spider_net_descr *descr = start;  in spider_net_alloc_rx_skbs()  local
562 		descr->prev->hwdescr->next_descr_addr = descr->bus_addr;  in spider_net_alloc_rx_skbs()
563 		descr = descr->next;  in spider_net_alloc_rx_skbs()
564 	} while (descr != start);  in spider_net_alloc_rx_skbs()
688 	struct spider_net_descr *descr;  in spider_net_prepare_tx_descr()  local
703 	descr = card->tx_chain.head;  in spider_net_prepare_tx_descr()
704 	if (descr->next == chain->tail->prev) {  in spider_net_prepare_tx_descr()
709 	hwdescr = descr->hwdescr;  in spider_net_prepare_tx_descr()
710 	chain->head = descr->next;  in spider_net_prepare_tx_descr()
712 	descr->skb = skb;  in spider_net_prepare_tx_descr()
734 	descr->prev->hwdescr->next_descr_addr = descr->bus_addr;  in spider_net_prepare_tx_descr()
743 	struct spider_net_descr *descr = card->tx_chain.tail;  in spider_net_set_low_watermark()  local
752 	while (descr != card->tx_chain.head) {  in spider_net_set_low_watermark()
753 		status = descr->hwdescr->dmac_cmd_status & SPIDER_NET_DESCR_NOT_IN_USE;  in spider_net_set_low_watermark()
756 		descr = descr->next;  in spider_net_set_low_watermark()
765 	descr = card->tx_chain.tail;  in spider_net_set_low_watermark()
768 		descr = descr->next;  in spider_net_set_low_watermark()
772 	descr->hwdescr->dmac_cmd_status |= SPIDER_NET_DESCR_TXDESFLG;  in spider_net_set_low_watermark()
773 	if (card->low_watermark && card->low_watermark != descr) {  in spider_net_set_low_watermark()
778 	card->low_watermark = descr;  in spider_net_set_low_watermark()
800 	struct spider_net_descr *descr;  in spider_net_release_tx_chain()  local
813 		descr = chain->tail;  in spider_net_release_tx_chain()
814 		hwdescr = descr->hwdescr;  in spider_net_release_tx_chain()
820 			dev->stats.tx_bytes += descr->skb->len;  in spider_net_release_tx_chain()
850 		chain->tail = descr->next;  in spider_net_release_tx_chain()
852 		skb = descr->skb;  in spider_net_release_tx_chain()
853 		descr->skb = NULL;  in spider_net_release_tx_chain()
881 	struct spider_net_descr *descr;  in spider_net_kick_tx_dma()  local
887 	descr = card->tx_chain.tail;  in spider_net_kick_tx_dma()
889 		if (spider_net_get_descr_status(descr->hwdescr) ==  in spider_net_kick_tx_dma()
892 					descr->bus_addr);  in spider_net_kick_tx_dma()
897 		if (descr == card->tx_chain.head)  in spider_net_kick_tx_dma()
899 		descr = descr->next;  in spider_net_kick_tx_dma()
979 spider_net_pass_skb_up(struct spider_net_descr *descr,  in spider_net_pass_skb_up()  argument
982 	struct spider_net_hw_descr *hwdescr = descr->hwdescr;  in spider_net_pass_skb_up()
983 	struct sk_buff *skb = descr->skb;  in spider_net_pass_skb_up()
1025 	struct spider_net_descr *descr= start;  in show_rx_chain()  local
1047 		hwd = descr->hwdescr;  in show_rx_chain()
1048 		off = descr - chain->ring;  in show_rx_chain()
1051 		if (descr == chain->head)  in show_rx_chain()
1055 		if (curr_desc == descr->bus_addr)  in show_rx_chain()
1059 		if (next_desc == descr->bus_addr)  in show_rx_chain()
1077 		descr = descr->next;  in show_rx_chain()
1078 	} while (descr != start);  in show_rx_chain()
1085 	descr = start;  in show_rx_chain()
1088 		struct spider_net_hw_descr *hwd = descr->hwdescr;  in show_rx_chain()
1090 		cnt = descr - chain->ring;  in show_rx_chain()
1092 		         cnt, status, descr->skb);  in show_rx_chain()
1094 		         descr->bus_addr, hwd->buf_addr, hwd->buf_size);  in show_rx_chain()
1103 		descr = descr->next;  in show_rx_chain()
1104 	} while (descr != start);  in show_rx_chain()
1122 	struct spider_net_descr *descr;  in spider_net_resync_head_ptr()  local
1126 	descr = chain->head;  in spider_net_resync_head_ptr()
1127 	status = spider_net_get_descr_status(descr->hwdescr);  in spider_net_resync_head_ptr()
1134 	descr = chain->head;  in spider_net_resync_head_ptr()
1135 	status = spider_net_get_descr_status(descr->hwdescr);  in spider_net_resync_head_ptr()
1138 		descr = descr->next;  in spider_net_resync_head_ptr()
1139 		status = spider_net_get_descr_status(descr->hwdescr);  in spider_net_resync_head_ptr()
1141 	chain->head = descr;  in spider_net_resync_head_ptr()
1149 	struct spider_net_descr *descr;  in spider_net_resync_tail_ptr()  local
1153 	descr = chain->tail;  in spider_net_resync_tail_ptr()
1154 	status = spider_net_get_descr_status(descr->hwdescr);  in spider_net_resync_tail_ptr()
1159 		descr = descr->next;  in spider_net_resync_tail_ptr()
1160 		status = spider_net_get_descr_status(descr->hwdescr);  in spider_net_resync_tail_ptr()
1162 	chain->tail = descr;  in spider_net_resync_tail_ptr()
1185 	struct spider_net_descr *descr = chain->tail;  in spider_net_decode_one_descr()  local
1186 	struct spider_net_hw_descr *hwdescr = descr->hwdescr;  in spider_net_decode_one_descr()
1198 	chain->tail = descr->next;  in spider_net_decode_one_descr()
1245 		pr_err("which=%ld\n", descr - card->rx_chain.ring);  in spider_net_decode_one_descr()
1252 	spider_net_pass_skb_up(descr, card);  in spider_net_decode_one_descr()
1253 	descr->skb = NULL;  in spider_net_decode_one_descr()
1260 	dev_kfree_skb_irq(descr->skb);  in spider_net_decode_one_descr()
1261 	descr->skb = NULL;  in spider_net_decode_one_descr()