i40e: clamp jumbo frame size
The driver was allowing the user to set larger size MTU than the hardware was being configured to support. The driver was already using VLAN_HLEN when setting the hardware max receivable frame size, so just add it to the netdev MTU set entry point as well. Change-ID: Ie20e2a35d04f8c411253e255bea79ca69aaeaea3 Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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@ -1698,7 +1698,7 @@ static void i40e_sync_filters_subtask(struct i40e_pf *pf)
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static int i40e_change_mtu(struct net_device *netdev, int new_mtu)
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{
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struct i40e_netdev_priv *np = netdev_priv(netdev);
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int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
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int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
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struct i40e_vsi *vsi = np->vsi;
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/* MTU < 68 is an error and causes problems on some kernels */
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