- iowrite16(lp->tx_ring_dma, ioaddr + MTD_SA0);
- iowrite16(lp->tx_ring_dma >> 16, ioaddr + MTD_SA1);
+static int r6040_alloc_rxbufs(struct net_device *dev)
+{
+ struct r6040_private *lp = netdev_priv(dev);
+ struct r6040_descriptor *desc;
+ struct sk_buff *skb;
+ int rc;
+
+ lp->rx_remove_ptr = lp->rx_insert_ptr = lp->rx_ring;
+ r6040_init_ring_desc(lp->rx_ring, lp->rx_ring_dma, RX_DCNT);
+
+ /* Allocate skbs for the rx descriptors */
+ desc = lp->rx_ring;
+ do {
+ skb = netdev_alloc_skb(dev, MAX_BUF_SIZE);
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to alloc skb for rx\n", dev->name);
+ rc = -ENOMEM;
+ goto err_exit;
+ }
+ desc->skb_ptr = skb;
+ desc->buf = cpu_to_le32(pci_map_single(lp->pdev,
+ desc->skb_ptr->data,
+ MAX_BUF_SIZE, PCI_DMA_FROMDEVICE));
+ desc->status = 0x8000;
+ desc = desc->vndescp;
+ } while (desc != lp->rx_ring);
+
+ return 0;
+
+err_exit:
+ /* Deallocate all previously allocated skbs */
+ r6040_free_rxbufs(dev);
+ return rc;