ethernet/natsemi/ns83820.c

396 struct rx_info {
417 	struct rx_info		rx_info;
461 	if (test_and_clear_bit(0, &dev->rx_info.idle)) {
463 		writel(dev->rx_info.phy_descs +
464 			(4 * DESC_SIZE * dev->rx_info.next_rx),
466 		if (dev->rx_info.next_rx == dev->rx_info.next_empty)
499 #define nr_rx_empty(dev) ((NR_RX_DESC-2 + dev->rx_info.next_rx - dev->rx_info.next_empty) % NR_RX_DESC)
507 	next_empty = dev->rx_info.next_empty;
517 		dev->rx_info.next_empty,
518 		dev->rx_info.nr_used,
519 		dev->rx_info.next_rx
523 	sg = dev->rx_info.descs + (next_empty * DESC_SIZE);
524 	BUG_ON(NULL != dev->rx_info.skbs[next_empty]);
525 	dev->rx_info.skbs[next_empty] = skb;
527 	dev->rx_info.next_empty = (next_empty + 1) % NR_RX_DESC;
533 	if (likely(next_empty != dev->rx_info.next_rx))
534 		dev->rx_info.descs[((NR_RX_DESC + next_empty - 1) % NR_RX_DESC) * DESC_SIZE] = cpu_to_le32(dev->rx_info.phy_descs + (next_empty * DESC_SIZE * 4));
550 		spin_lock_irqsave(&dev->rx_info.lock, flags);
562 			spin_lock_irqsave(&dev->rx_info.lock, flags);
565 			spin_unlock_irqrestore(&dev->rx_info.lock, flags);
572 		spin_unlock_irqrestore(&dev->rx_info.lock, flags);
589 	if (dev->rx_info.up)
595 	build_rx_desc(dev, dev->rx_info.descs + (DESC_SIZE * i), 0, 0, CMDSTS_OWN, 0);
715 	dev->rx_info.idle = 1;
716 	dev->rx_info.next_rx = 0;
717 	dev->rx_info.next_rx_desc = dev->rx_info.descs;
718 	dev->rx_info.next_empty = 0;
724 	writel(dev->rx_info.phy_descs, dev->base + RXDP);
730 		spin_lock_irq(&dev->rx_info.lock);
737 		dev->rx_info.up = 1;
760 		spin_unlock_irq(&dev->rx_info.lock);
779 	dev->rx_info.up = 0;
790 		struct sk_buff *skb = dev->rx_info.skbs[i];
791 		dev->rx_info.skbs[i] = NULL;
801 		if (dev->rx_info.up) {
807 	if (dev->rx_info.up && nr_rx_empty(dev) > NR_RX_DESC*3/4)
811 	if (dev->rx_info.idle)
821 	struct rx_info *info = &dev->rx_info;
832 		(long)(dev->rx_info.phy_descs),
833 		(int)dev->rx_info.next_rx,
834 		(dev->rx_info.descs + (DESC_SIZE * dev->rx_info.next_rx)),
835 		(int)dev->rx_info.next_empty,
836 		(dev->rx_info.descs + (DESC_SIZE * dev->rx_info.next_empty))
1416 		dev->rx_info.idle = 1;
1422 		prefetch(dev->rx_info.next_rx_desc);
1447 	if ((ISR_RXRCMP & isr) && dev->rx_info.up)
1534 	dev->rx_info.up = 0;
1924 	spin_lock_init(&dev->rx_info.lock);
1946 	dev->rx_info.descs = dma_alloc_coherent(&pci_dev->dev,
1948 						&dev->rx_info.phy_descs, GFP_KERNEL);
1950 	if (!dev->base || !dev->tx_descs || !dev->rx_info.descs)
1955 		dev->rx_info.descs, (long)dev->rx_info.phy_descs);
2193 			  dev->rx_info.descs, dev->rx_info.phy_descs);
2217 			  dev->rx_info.descs, dev->rx_info.phy_descs);