diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 6a59d9367a2a..1b3b681a8b1d 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -2595,9 +2595,20 @@ int i40e_vsi_add_vlan(struct i40e_vsi *vsi, u16 vid) { int err; - if (!vid || vsi->info.pvid) + if (vsi->info.pvid) return -EINVAL; + /* The network stack will attempt to add VID=0, with the intention to + * receive priority tagged packets with a VLAN of 0. Our HW receives + * these packets by default when configured to receive untagged + * packets, so we don't need to add a filter for this case. + * Additionally, HW interprets adding a VID=0 filter as meaning to + * receive *only* tagged traffic and stops receiving untagged traffic. + * Thus, we do not want to actually add a filter for VID=0 + */ + if (!vid) + return 0; + /* Locked once because all functions invoked below iterates list*/ spin_lock_bh(&vsi->mac_filter_hash_lock); err = i40e_add_vlan_all_mac(vsi, vid); @@ -2674,15 +2685,7 @@ static int i40e_vlan_rx_add_vid(struct net_device *netdev, if (vid >= VLAN_N_VID) return -EINVAL; - /* If the network stack called us with vid = 0 then - * it is asking to receive priority tagged packets with - * vlan id 0. Our HW receives them by default when configured - * to receive untagged packets so there is no need to add an - * extra filter for vlan 0 tagged packets. - */ - if (vid) - ret = i40e_vsi_add_vlan(vsi, vid); - + ret = i40e_vsi_add_vlan(vsi, vid); if (!ret) set_bit(vid, vsi->active_vlans); |