[PATCH] e100: fix for incoherent arches

* Changed mapping on Rx skb to bi-directional.  skb->data holds both the
  RFD structure and the packet data, and the RFD is read/written by
  HW.  Issue found on Xscale HW that doesn't handle cache syncs auto-
  matically.  Other changes in patch are whitespace/spelling.

drivers/net/e100.c

@@ -1392,12 +1392,12 @@ static inline int e100_rx_alloc_skb(struct nic *nic, struct rx *rx)
 	if(!(rx->skb = dev_alloc_skb(RFD_BUF_LEN + rx_offset)))
 		return -ENOMEM;
 
-	/* Align, init, and map the RFA. */
+	/* Align, init, and map the RFD. */
 	rx->skb->dev = nic->netdev;
 	skb_reserve(rx->skb, rx_offset);
 	memcpy(rx->skb->data, &nic->blank_rfd, sizeof(struct rfd));
 	rx->dma_addr = pci_map_single(nic->pdev, rx->skb->data,
-		RFD_BUF_LEN, PCI_DMA_FROMDEVICE);
+		RFD_BUF_LEN, PCI_DMA_BIDIRECTIONAL);
 
 	/* Link the RFD to end of RFA by linking previous RFD to
 	 * this one, and clearing EL bit of previous.  */