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