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>
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@ -4813,6 +4813,10 @@ static int igb_change_mtu(struct net_device *netdev, int new_mtu)
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return -EINVAL;
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return -EINVAL;
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}
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}
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/* adjust max frame to be at least the size of a standard frame */
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if (max_frame < (ETH_FRAME_LEN + ETH_FCS_LEN))
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max_frame = ETH_FRAME_LEN + ETH_FCS_LEN;
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while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
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while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
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msleep(1);
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msleep(1);
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