Commit ce45ffb8 authored by Jason Xing's avatar Jason Xing Committed by Tony Nguyen
Browse files

i40e: add double of VLAN header when computing the max MTU 



Include the second VLAN HLEN into account when computing the maximum
MTU size as other drivers do.

Fixes: 0c8493d9 ("i40e: add XDP support for pass and drop actions")
Signed-off-by: default avatarJason Xing <kernelxing@tencent.com>
Reviewed-by: default avatarAlexander Duyck <alexanderduyck@fb.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent f9cd6a44

drivers/net/ethernet/intel/i40e/i40e_main.c

+1 −1
Original line number Diff line number Diff line
@@ -2921,7 +2921,7 @@ static int i40e_change_mtu(struct net_device *netdev, int new_mtu) 
	struct i40e_pf *pf = vsi->back;



	if (i40e_enabled_xdp_vsi(vsi)) {

		int frame_size = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;

		int frame_size = new_mtu + I40E_PACKET_HDR_PAD;



		if (frame_size > i40e_max_xdp_frame_size(vsi))

			return -EINVAL;