2370 	struct macb *lp = netdev_priv(dev);  in at91ether_start()  local
2375 	lp->rx_ring = dma_alloc_coherent(&lp->pdev->dev,  in at91ether_start()
2378 					 &lp->rx_ring_dma, GFP_KERNEL);  in at91ether_start()
2379 	if (!lp->rx_ring)  in at91ether_start()
2382 	lp->rx_buffers = dma_alloc_coherent(&lp->pdev->dev,  in at91ether_start()
2385 					    &lp->rx_buffers_dma, GFP_KERNEL);  in at91ether_start()
2386 	if (!lp->rx_buffers) {  in at91ether_start()
2387 		dma_free_coherent(&lp->pdev->dev,  in at91ether_start()
2390 				  lp->rx_ring, lp->rx_ring_dma);  in at91ether_start()
2391 		lp->rx_ring = NULL;  in at91ether_start()
2395 	addr = lp->rx_buffers_dma;  in at91ether_start()
2397 		lp->rx_ring[i].addr = addr;  in at91ether_start()
2398 		lp->rx_ring[i].ctrl = 0;  in at91ether_start()
2403 	lp->rx_ring[AT91ETHER_MAX_RX_DESCR - 1].addr |= MACB_BIT(RX_WRAP);  in at91ether_start()
2406 	lp->rx_tail = 0;  in at91ether_start()
2409 	macb_writel(lp, RBQP, lp->rx_ring_dma);  in at91ether_start()
2412 	ctl = macb_readl(lp, NCR);  in at91ether_start()
2413 	macb_writel(lp, NCR, ctl | MACB_BIT(RE) | MACB_BIT(TE));  in at91ether_start()
2421 	struct macb *lp = netdev_priv(dev);  in at91ether_open()  local
2426 	ctl = macb_readl(lp, NCR);  in at91ether_open()
2427 	macb_writel(lp, NCR, ctl | MACB_BIT(CLRSTAT));  in at91ether_open()
2429 	macb_set_hwaddr(lp);  in at91ether_open()
2436 	macb_writel(lp, IER, MACB_BIT(RCOMP)	|  in at91ether_open()
2445 	phy_start(lp->phy_dev);  in at91ether_open()
2455 	struct macb *lp = netdev_priv(dev);  in at91ether_close()  local
2459 	ctl = macb_readl(lp, NCR);  in at91ether_close()
2460 	macb_writel(lp, NCR, ctl & ~(MACB_BIT(TE) | MACB_BIT(RE)));  in at91ether_close()
2463 	macb_writel(lp, IDR, MACB_BIT(RCOMP)	|  in at91ether_close()
2473 	dma_free_coherent(&lp->pdev->dev,  in at91ether_close()
2476 			  lp->rx_ring, lp->rx_ring_dma);  in at91ether_close()
2477 	lp->rx_ring = NULL;  in at91ether_close()
2479 	dma_free_coherent(&lp->pdev->dev,  in at91ether_close()
2481 			  lp->rx_buffers, lp->rx_buffers_dma);  in at91ether_close()
2482 	lp->rx_buffers = NULL;  in at91ether_close()
2490 	struct macb *lp = netdev_priv(dev);  in at91ether_start_xmit()  local
2492 	if (macb_readl(lp, TSR) & MACB_BIT(RM9200_BNQ)) {  in at91ether_start_xmit()
2496 		lp->skb = skb;  in at91ether_start_xmit()
2497 		lp->skb_length = skb->len;  in at91ether_start_xmit()
2498 		lp->skb_physaddr = dma_map_single(NULL, skb->data, skb->len,  in at91ether_start_xmit()
2502 		macb_writel(lp, TAR, lp->skb_physaddr);  in at91ether_start_xmit()
2504 		macb_writel(lp, TCR, skb->len);  in at91ether_start_xmit()
2519 	struct macb *lp = netdev_priv(dev);  in at91ether_rx()  local
2524 	while (lp->rx_ring[lp->rx_tail].addr & MACB_BIT(RX_USED)) {  in at91ether_rx()
2525 		p_recv = lp->rx_buffers + lp->rx_tail * AT91ETHER_MAX_RBUFF_SZ;  in at91ether_rx()
2526 		pktlen = MACB_BF(RX_FRMLEN, lp->rx_ring[lp->rx_tail].ctrl);  in at91ether_rx()
2533 			lp->stats.rx_packets++;  in at91ether_rx()
2534 			lp->stats.rx_bytes += pktlen;  in at91ether_rx()
2537 			lp->stats.rx_dropped++;  in at91ether_rx()
2540 		if (lp->rx_ring[lp->rx_tail].ctrl & MACB_BIT(RX_MHASH_MATCH))  in at91ether_rx()
2541 			lp->stats.multicast++;  in at91ether_rx()
2544 		lp->rx_ring[lp->rx_tail].addr &= ~MACB_BIT(RX_USED);  in at91ether_rx()
2547 		if (lp->rx_tail == AT91ETHER_MAX_RX_DESCR - 1)  in at91ether_rx()
2548 			lp->rx_tail = 0;  in at91ether_rx()
2550 			lp->rx_tail++;  in at91ether_rx()
2558 	struct macb *lp = netdev_priv(dev);  in at91ether_interrupt()  local
2564 	intstatus = macb_readl(lp, ISR);  in at91ether_interrupt()
2574 			lp->stats.tx_errors++;  in at91ether_interrupt()
2576 		if (lp->skb) {  in at91ether_interrupt()
2577 			dev_kfree_skb_irq(lp->skb);  in at91ether_interrupt()
2578 			lp->skb = NULL;  in at91ether_interrupt()
2579 			dma_unmap_single(NULL, lp->skb_physaddr,  in at91ether_interrupt()
2580 					 lp->skb_length, DMA_TO_DEVICE);  in at91ether_interrupt()
2581 			lp->stats.tx_packets++;  in at91ether_interrupt()
2582 			lp->stats.tx_bytes += lp->skb_length;  in at91ether_interrupt()
2589 		ctl = macb_readl(lp, NCR);  in at91ether_interrupt()
2590 		macb_writel(lp, NCR, ctl & ~MACB_BIT(RE));  in at91ether_interrupt()
2591 		macb_writel(lp, NCR, ctl | MACB_BIT(RE));  in at91ether_interrupt()