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i40e: don't allow changes to HW VLAN stripping on active port VLANs

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Modifying the VLAN stripping options when a port VLAN is configured
will break traffic for the VSI, and conceptually doesn't make sense,
so don't allow this.

Signed-off-by: Nicholas Nunley <nicholas.d.nunley@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Nicholas Nunley 2019-02-06 15:08:17 -08:00 committed by Jeff Kirsher
parent cdc594e003
commit bfb0ebed53
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -2654,6 +2654,10 @@ void i40e_vlan_stripping_enable(struct i40e_vsi *vsi)
struct i40e_vsi_context ctxt;
i40e_status ret;
/* Don't modify stripping options if a port VLAN is active */
if (vsi->info.pvid)
return;
if ((vsi->info.valid_sections &
cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_MODE_MASK) == 0))
@ -2684,6 +2688,10 @@ void i40e_vlan_stripping_disable(struct i40e_vsi *vsi)
struct i40e_vsi_context ctxt;
i40e_status ret;
/* Don't modify stripping options if a port VLAN is active */
if (vsi->info.pvid)
return;
if ((vsi->info.valid_sections &
cpu_to_le16(I40E_AQ_VSI_PROP_VLAN_VALID)) &&
((vsi->info.port_vlan_flags & I40E_AQ_VSI_PVLAN_EMOD_MASK) ==