[PATCH] via-rhine: execute bounce buffers code on Rhine-I only
Roger Luethi [Tue, 4 Apr 2006 18:49:16 +0000 (20:49 +0200)]
Patch suggested by Yang Wu (pin xue <pinxue@gmail.com>).

Signed-off-by: Roger Luethi <rl@hellgate.ch>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/net/via-rhine.c

index a9b2150..53dfc8c 100644 (file)
@@ -469,7 +469,7 @@ struct rhine_private {
        struct sk_buff *tx_skbuff[TX_RING_SIZE];
        dma_addr_t tx_skbuff_dma[TX_RING_SIZE];
 
-       /* Tx bounce buffers */
+       /* Tx bounce buffers (Rhine-I only) */
        unsigned char *tx_buf[TX_RING_SIZE];
        unsigned char *tx_bufs;
        dma_addr_t tx_bufs_dma;
@@ -1043,7 +1043,8 @@ static void alloc_tbufs(struct net_device* dev)
                rp->tx_ring[i].desc_length = cpu_to_le32(TXDESC);
                next += sizeof(struct tx_desc);
                rp->tx_ring[i].next_desc = cpu_to_le32(next);
-               rp->tx_buf[i] = &rp->tx_bufs[i * PKT_BUF_SZ];
+               if (rp->quirks & rqRhineI)
+                       rp->tx_buf[i] = &rp->tx_bufs[i * PKT_BUF_SZ];
        }
        rp->tx_ring[i-1].next_desc = cpu_to_le32(rp->tx_ring_dma);