diff options
| author | Jesse Brandeburg <jesse.brandeburg@intel.com> | 2008-09-11 19:56:28 -0700 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-09-24 18:54:51 -0400 |
| commit | 42c783c5b1b755ae2ab2dec720ad58ffc2257a60 (patch) | |
| tree | 5a6960af294aab7a9a08145836944e7f58ee7b46 | |
| parent | f47cf66e9cc778d21533c681e89b4034ed2d8666 (diff) | |
| download | blackbird-op-linux-42c783c5b1b755ae2ab2dec720ad58ffc2257a60.tar.gz blackbird-op-linux-42c783c5b1b755ae2ab2dec720ad58ffc2257a60.zip | |
ixgbe: limit small mtu to minimum for ipv4 support
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index cfaa3ca28f51..2c8895e9daed 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2839,8 +2839,8 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu) struct ixgbe_adapter *adapter = netdev_priv(netdev); int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; - if ((max_frame < (ETH_ZLEN + ETH_FCS_LEN)) || - (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) + /* MTU < 68 is an error and causes problems on some kernels */ + if ((new_mtu < 68) || (max_frame > IXGBE_MAX_JUMBO_FRAME_SIZE)) return -EINVAL; DPRINTK(PROBE, INFO, "changing MTU from %d to %d\n", |
