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| author | Thomas Chou <thomas@wytron.com.tw> | 2009-10-06 05:25:25 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-10-07 12:50:15 +0200 |
| commit | a4d63a943735efa30270ce70716d43323fd40f02 (patch) | |
| tree | e5b65612eca59bc83ae31c02c4ddf09b0c7e6cc2 | |
| parent | ethoc: use system memory as buffer (diff) | |
| download | linux-a4d63a943735efa30270ce70716d43323fd40f02.tar.xz linux-a4d63a943735efa30270ce70716d43323fd40f02.zip | |
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: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethoc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethoc.c b/drivers/net/ethoc.c index 6d82dc646ac0..34d0c69e67f7 100644 --- a/drivers/net/ethoc.c +++ b/drivers/net/ethoc.c @@ -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); |