提交 a4d63a94 编写于 作者: T Thomas Chou 提交者: David S. Miller

ethoc: limit the number of buffers to 128

Only 128 buffer descriptors are supported in the core. Limit the
number in case we have more memory.
Signed-off-by: NThomas Chou <thomas@wytron.com.tw>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 0baa080c
......@@ -662,8 +662,8 @@ static int ethoc_open(struct net_device *dev)
if (ret)
return ret;
/* calculate the number of TX/RX buffers */
num_bd = (dev->mem_end - dev->mem_start + 1) / ETHOC_BUFSIZ;
/* calculate the number of TX/RX buffers, maximum 128 supported */
num_bd = min(128, (dev->mem_end - dev->mem_start + 1) / ETHOC_BUFSIZ);
priv->num_tx = max(min_tx, num_bd / 4);
priv->num_rx = num_bd - priv->num_tx;
ethoc_write(priv, TX_BD_NUM, priv->num_tx);
......
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