net/ethernet/lantiq_xrx200.c

135 		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
137 		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) != LTQ_DMA_C)
140 		desc->ctl = LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) |
142 		ch->dma.desc++;
143 		ch->dma.desc %= LTQ_DESC_NUM;
189 	void *buf = ch->rx_buff[ch->dma.desc];
194 	ch->rx_buff[ch->dma.desc] = alloc(priv->rx_skb_size);
195 	if (!ch->rx_buff[ch->dma.desc]) {
196 		ch->rx_buff[ch->dma.desc] = buf;
201 	mapping = dma_map_single(priv->dev, ch->rx_buff[ch->dma.desc],
204 		skb_free_frag(ch->rx_buff[ch->dma.desc]);
205 		ch->rx_buff[ch->dma.desc] = buf;
210 	ch->dma.desc_base[ch->dma.desc].addr = mapping + NET_SKB_PAD + NET_IP_ALIGN;
214 	ch->dma.desc_base[ch->dma.desc].ctl =
223 	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
224 	void *buf = ch->rx_buff[ch->dma.desc];
225 	u32 ctl = desc->ctl;
233 	ch->dma.desc++;
234 	ch->dma.desc %= LTQ_DESC_NUM;
291 		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
293 		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
323 		struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->tx_free];
325 		if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) == LTQ_DMA_C) {
362 	struct ltq_dma_desc *desc = &ch->dma.desc_base[ch->dma.desc];
375 	if ((desc->ctl & (LTQ_DMA_OWN | LTQ_DMA_C)) || ch->skb[ch->dma.desc]) {
381 	ch->skb[ch->dma.desc] = skb;
390 	desc->addr = mapping - byte_offset;
393 	desc->ctl = LTQ_DMA_OWN | LTQ_DMA_SOP | LTQ_DMA_EOP |
395 	ch->dma.desc++;
396 	ch->dma.desc %= LTQ_DESC_NUM;
397 	if (ch->dma.desc == ch->tx_free)
436 	curr_desc = ch_rx->dma.desc;
438 	for (ch_rx->dma.desc = 0; ch_rx->dma.desc < LTQ_DESC_NUM;
439 	     ch_rx->dma.desc++) {
440 		buff = ch_rx->rx_buff[ch_rx->dma.desc];
451 	ch_rx->dma.desc = curr_desc;
499 	for (ch_rx->dma.desc = 0; ch_rx->dma.desc < LTQ_DESC_NUM;
500 	     ch_rx->dma.desc++) {
505 	ch_rx->dma.desc = 0;