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Commit e4062894 authored by Paweł Jabłoński's avatar Paweł Jabłoński Committed by Jeff Kirsher
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i40evf: Fix turning TSO, GSO and GRO on after 



This patch fixes the problem where each MTU change turns TSO,
GSO and GRO on from off state.

Now when TSO, GSO or GRO is turned off, MTU change does not
turn them on.

Signed-off-by: default avatarPaweł Jabłoński <pawel.jablonski@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 6ee4d322

drivers/net/ethernet/intel/i40evf/i40evf_main.c

+18 −0
Original line number Original line Diff line number Diff line
@@ -3357,6 +3357,24 @@ int i40evf_process_config(struct i40evf_adapter *adapter) 
	if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)

	if (vfres->vf_cap_flags & VIRTCHNL_VF_OFFLOAD_VLAN)

		netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;

		netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;





	/* Do not turn on offloads when they are requested to be turned off.

	 * TSO needs minimum 576 bytes to work correctly.

	 */

	if (netdev->wanted_features) {

		if (!(netdev->wanted_features & NETIF_F_TSO) ||

		    netdev->mtu < 576)

			netdev->features &= ~NETIF_F_TSO;

		if (!(netdev->wanted_features & NETIF_F_TSO6) ||

		    netdev->mtu < 576)

			netdev->features &= ~NETIF_F_TSO6;

		if (!(netdev->wanted_features & NETIF_F_TSO_ECN))

			netdev->features &= ~NETIF_F_TSO_ECN;

		if (!(netdev->wanted_features & NETIF_F_GRO))

			netdev->features &= ~NETIF_F_GRO;

		if (!(netdev->wanted_features & NETIF_F_GSO))

			netdev->features &= ~NETIF_F_GSO;

	}



	adapter->vsi.id = adapter->vsi_res->vsi_id;

	adapter->vsi.id = adapter->vsi_res->vsi_id;





	adapter->vsi.back = adapter;

	adapter->vsi.back = adapter;