diff options
author | Michael Chan <mchan@broadcom.com> | 2006-10-18 23:55:18 -0400 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2006-10-18 23:55:18 -0400 |
commit | bc3a9254a7925b6278f6d882746fe6a0bdf6f610 (patch) | |
tree | 862059bc23a8b602da144adef1f237afb0668489 /drivers/net/tg3.c | |
parent | 42952231c6a8623117ee3cc89c82d382dc69ca30 (diff) |
[TG3]: Add lower bound checks for tx ring size.
The minimum tx ring size must be greater than MAX_SKB_FRAGS or 3
times that on some chips with TSO bugs.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/tg3.c')
-rw-r--r-- | drivers/net/tg3.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 39e483308a44..7ba9dd2b1f80 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c | |||
@@ -8106,7 +8106,10 @@ static int tg3_set_ringparam(struct net_device *dev, struct ethtool_ringparam *e | |||
8106 | 8106 | ||
8107 | if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) || | 8107 | if ((ering->rx_pending > TG3_RX_RING_SIZE - 1) || |
8108 | (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) || | 8108 | (ering->rx_jumbo_pending > TG3_RX_JUMBO_RING_SIZE - 1) || |
8109 | (ering->tx_pending > TG3_TX_RING_SIZE - 1)) | 8109 | (ering->tx_pending > TG3_TX_RING_SIZE - 1) || |
8110 | (ering->tx_pending <= MAX_SKB_FRAGS) || | ||
8111 | ((tp->tg3_flags2 & TG3_FLG2_HW_TSO_1_BUG) && | ||
8112 | (ering->tx_pending <= (MAX_SKB_FRAGS * 3)))) | ||
8110 | return -EINVAL; | 8113 | return -EINVAL; |
8111 | 8114 | ||
8112 | if (netif_running(dev)) { | 8115 | if (netif_running(dev)) { |