diff options
| author |   Alexander Duyck <alexander.h.duyck@intel.com> | 2013-07-16 00:20:34 +0000 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-08-22 02:25:49 -0700 |
| commit | 2ccd994c4c85a787ba4873f1481edd42c4ff46bf (patch) | |
| tree | c67dbab539f0c5c5818cd230a60af68f8dd3faac /drivers/net | |
| parent | igb: don't allow SR-IOV without MSI-X (diff) | |
| download | linux-dev-2ccd994c4c85a787ba4873f1481edd42c4ff46bf.tar.xz linux-dev-2ccd994c4c85a787ba4873f1481edd42c4ff46bf.zip | |
igb: Update MTU so that it is always at least a standard frame size
This change makes it so that we limit the lower bound for max_frame_size to
the size of a standard Ethernet frame. This allows for feature parity with
other Intel based drivers such as ixgbe.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 94295a06c124..1a0137d68109 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -4813,6 +4813,10 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu) return -EINVAL; } + /* adjust max frame to be at least the size of a standard frame */ + if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN)) + max_frame = ETH_FRAME_LEN + ETH_FCS_LEN; + while (test_and_set_bit(__IGB_RESETTING, &adapter->state)) msleep(1); |