Exemple #1
0
static void myri_init_rings(struct myri_eth *mp, int from_irq)
{
	struct recvq __iomem *rq = mp->rq;
	struct myri_rxd __iomem *rxd = &rq->myri_rxd[0];
	struct net_device *dev = mp->dev;
	gfp_t gfp_flags = GFP_KERNEL;
	int i;

	if (from_irq || in_interrupt())
		gfp_flags = GFP_ATOMIC;

	myri_clean_rings(mp);
	for (i = 0; i < RX_RING_SIZE; i++) {
		struct sk_buff *skb = myri_alloc_skb(RX_ALLOC_SIZE, gfp_flags);
		u32 dma_addr;

		if (!skb)
			continue;
		mp->rx_skbs[i] = skb;
		skb->dev = dev;
		skb_put(skb, RX_ALLOC_SIZE);

		dma_addr = dma_map_single(&mp->myri_op->dev,
					  skb->data, RX_ALLOC_SIZE,
					  DMA_FROM_DEVICE);
		sbus_writel(dma_addr, &rxd[i].myri_scatters[0].addr);
		sbus_writel(RX_ALLOC_SIZE, &rxd[i].myri_scatters[0].len);
		sbus_writel(i, &rxd[i].ctx);
		sbus_writel(1, &rxd[i].num_sg);
	}
	sbus_writel(0, &rq->head);
	sbus_writel(RX_RING_SIZE, &rq->tail);
}
Exemple #2
0
static int myri_close(struct net_device *dev)
{
	struct myri_eth *mp = netdev_priv(dev);

	myri_clean_rings(mp);
	return 0;
}
Exemple #3
0
static int myri_close(struct net_device *dev)
{
	struct myri_eth *mp = (struct myri_eth *) dev->priv;

	myri_clean_rings(mp);
	return 0;
}