2437 	struct macb *lp = netdev_priv(dev);  in at91ether_start()  local
2442 	lp->rx_ring = dma_alloc_coherent(&lp->pdev->dev,  in at91ether_start()
2445 					 &lp->rx_ring_dma, GFP_KERNEL);  in at91ether_start()
2446 	if (!lp->rx_ring)  in at91ether_start()
2449 	lp->rx_buffers = dma_alloc_coherent(&lp->pdev->dev,  in at91ether_start()
2452 					    &lp->rx_buffers_dma, GFP_KERNEL);  in at91ether_start()
2453 	if (!lp->rx_buffers) {  in at91ether_start()
2454 		dma_free_coherent(&lp->pdev->dev,  in at91ether_start()
2457 				  lp->rx_ring, lp->rx_ring_dma);  in at91ether_start()
2458 		lp->rx_ring = NULL;  in at91ether_start()
2462 	addr = lp->rx_buffers_dma;  in at91ether_start()
2464 		lp->rx_ring[i].addr = addr;  in at91ether_start()
2465 		lp->rx_ring[i].ctrl = 0;  in at91ether_start()
2470 	lp->rx_ring[AT91ETHER_MAX_RX_DESCR - 1].addr |= MACB_BIT(RX_WRAP);  in at91ether_start()
2473 	lp->rx_tail = 0;  in at91ether_start()
2476 	macb_writel(lp, RBQP, lp->rx_ring_dma);  in at91ether_start()
2479 	ctl = macb_readl(lp, NCR);  in at91ether_start()
2480 	macb_writel(lp, NCR, ctl | MACB_BIT(RE) | MACB_BIT(TE));  in at91ether_start()
2488 	struct macb *lp = netdev_priv(dev);  in at91ether_open()  local
2493 	ctl = macb_readl(lp, NCR);  in at91ether_open()
2494 	macb_writel(lp, NCR, ctl | MACB_BIT(CLRSTAT));  in at91ether_open()
2496 	macb_set_hwaddr(lp);  in at91ether_open()
2503 	macb_writel(lp, IER, MACB_BIT(RCOMP)	|  in at91ether_open()
2512 	phy_start(lp->phy_dev);  in at91ether_open()
2522 	struct macb *lp = netdev_priv(dev);  in at91ether_close()  local
2526 	ctl = macb_readl(lp, NCR);  in at91ether_close()
2527 	macb_writel(lp, NCR, ctl & ~(MACB_BIT(TE) | MACB_BIT(RE)));  in at91ether_close()
2530 	macb_writel(lp, IDR, MACB_BIT(RCOMP)	|  in at91ether_close()
2540 	dma_free_coherent(&lp->pdev->dev,  in at91ether_close()
2543 			  lp->rx_ring, lp->rx_ring_dma);  in at91ether_close()
2544 	lp->rx_ring = NULL;  in at91ether_close()
2546 	dma_free_coherent(&lp->pdev->dev,  in at91ether_close()
2548 			  lp->rx_buffers, lp->rx_buffers_dma);  in at91ether_close()
2549 	lp->rx_buffers = NULL;  in at91ether_close()
2557 	struct macb *lp = netdev_priv(dev);  in at91ether_start_xmit()  local
2559 	if (macb_readl(lp, TSR) & MACB_BIT(RM9200_BNQ)) {  in at91ether_start_xmit()
2563 		lp->skb = skb;  in at91ether_start_xmit()
2564 		lp->skb_length = skb->len;  in at91ether_start_xmit()
2565 		lp->skb_physaddr = dma_map_single(NULL, skb->data, skb->len,  in at91ether_start_xmit()
2569 		macb_writel(lp, TAR, lp->skb_physaddr);  in at91ether_start_xmit()
2571 		macb_writel(lp, TCR, skb->len);  in at91ether_start_xmit()
2586 	struct macb *lp = netdev_priv(dev);  in at91ether_rx()  local
2591 	while (lp->rx_ring[lp->rx_tail].addr & MACB_BIT(RX_USED)) {  in at91ether_rx()
2592 		p_recv = lp->rx_buffers + lp->rx_tail * AT91ETHER_MAX_RBUFF_SZ;  in at91ether_rx()
2593 		pktlen = MACB_BF(RX_FRMLEN, lp->rx_ring[lp->rx_tail].ctrl);  in at91ether_rx()
2600 			lp->stats.rx_packets++;  in at91ether_rx()
2601 			lp->stats.rx_bytes += pktlen;  in at91ether_rx()
2604 			lp->stats.rx_dropped++;  in at91ether_rx()
2607 		if (lp->rx_ring[lp->rx_tail].ctrl & MACB_BIT(RX_MHASH_MATCH))  in at91ether_rx()
2608 			lp->stats.multicast++;  in at91ether_rx()
2611 		lp->rx_ring[lp->rx_tail].addr &= ~MACB_BIT(RX_USED);  in at91ether_rx()
2614 		if (lp->rx_tail == AT91ETHER_MAX_RX_DESCR - 1)  in at91ether_rx()
2615 			lp->rx_tail = 0;  in at91ether_rx()
2617 			lp->rx_tail++;  in at91ether_rx()
2625 	struct macb *lp = netdev_priv(dev);  in at91ether_interrupt()  local
2631 	intstatus = macb_readl(lp, ISR);  in at91ether_interrupt()
2641 			lp->stats.tx_errors++;  in at91ether_interrupt()
2643 		if (lp->skb) {  in at91ether_interrupt()
2644 			dev_kfree_skb_irq(lp->skb);  in at91ether_interrupt()
2645 			lp->skb = NULL;  in at91ether_interrupt()
2646 			dma_unmap_single(NULL, lp->skb_physaddr,  in at91ether_interrupt()
2647 					 lp->skb_length, DMA_TO_DEVICE);  in at91ether_interrupt()
2648 			lp->stats.tx_packets++;  in at91ether_interrupt()
2649 			lp->stats.tx_bytes += lp->skb_length;  in at91ether_interrupt()
2656 		ctl = macb_readl(lp, NCR);  in at91ether_interrupt()
2657 		macb_writel(lp, NCR, ctl & ~MACB_BIT(RE));  in at91ether_interrupt()
2658 		macb_writel(lp, NCR, ctl | MACB_BIT(RE));  in at91ether_interrupt()