111 	ch->skb[ch->dma.desc] = netdev_alloc_skb(ch->netdev, MAX_DMA_DATA_LEN);  in ltq_etop_alloc_skb()
112 	if (!ch->skb[ch->dma.desc])  in ltq_etop_alloc_skb()
114 	ch->dma.desc_base[ch->dma.desc].addr =  in ltq_etop_alloc_skb()
115 		dma_map_single(&priv->pdev->dev, ch->skb[ch->dma.desc]->data,  in ltq_etop_alloc_skb()
117 	ch->dma.desc_base[ch->dma.desc].addr =  in ltq_etop_alloc_skb()
118 		CPHYSADDR(ch->skb[ch->dma.desc]->data);  in ltq_etop_alloc_skb()
119 	ch->dma.desc_base[ch->dma.desc].ctl =  in ltq_etop_alloc_skb()
122 	skb_reserve(ch->skb[ch->dma.desc], NET_IP_ALIGN);  in ltq_etop_alloc_skb()
130 	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];  in ltq_etop_hw_receive()  local
131 	struct sk_buff *skb = ch->skb[ch->dma.desc];  in ltq_etop_hw_receive()
132 	int len = (desc->ctl & LTQ_DMA_SIZE_MASK) - MAX_DMA_CRC_LEN;  in ltq_etop_hw_receive()
141 	ch->dma.desc++;  in ltq_etop_hw_receive()
142 	ch->dma.desc %= LTQ_DESC_NUM;  in ltq_etop_hw_receive()
158 		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];  in ltq_etop_poll_rx()  local
160 		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) != LTQ_DMA_C)  in ltq_etop_poll_rx()
222 		for (dma->desc = 0; dma->desc < LTQ_DESC_NUM; dma->desc++)  in ltq_etop_free_channel()
223 			dev_kfree_skb_any(ch->skb[ch->dma.desc]);  in ltq_etop_free_channel()
289 			for (ch->dma.desc = 0; ch->dma.desc < LTQ_DESC_NUM;  in ltq_etop_hw_init()
290 					ch->dma.desc++)  in ltq_etop_hw_init()
293 			ch->dma.desc = 0;  in ltq_etop_hw_init()
480 	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];  in ltq_etop_tx()  local
489 	if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) {  in ltq_etop_tx()
497 	ch->skb[ch->dma.desc] = skb;  in ltq_etop_tx()
502 	desc->addr = ((unsigned int)dma_map_single(&priv->pdev->dev, skb->data, len,  in ltq_etop_tx()
506 	desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |  in ltq_etop_tx()
508 	ch->dma.desc++;  in ltq_etop_tx()
509 	ch->dma.desc %= LTQ_DESC_NUM;  in ltq_etop_tx()
512 	if (ch->dma.desc_base[ch->dma.desc].ctl & LTQ_DMA_OWN)  in ltq_etop_tx()