ixgbe: updates vlan feature flags to enable FCoE offloads on vlan interface

Updates netdev->vlan_features for NETIF_F_FCOE_CRC and NETIF_F_FSO, so that
FCoE CRC and GSO offloads will get used for FCoE over ixgbe based vlan
interface.
Signed-off-by: NVasu Dev <vasu.dev@intel.com>
Signed-off-by: NYi Zou <yi.zou@intel.com>
Acked-by: NPeter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ixgbe/ixgbe_dcb_nl.c

@@ -148,7 +148,10 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 				IXGBE_FCRETA_SIZE;
 			netdev->features |= NETIF_F_FCOE_CRC;
 			netdev->features |= NETIF_F_FSO;
+			netdev->vlan_features |= NETIF_F_FCOE_CRC;
+			netdev->vlan_features |= NETIF_F_FSO;
 			netdev->fcoe_ddp_xid = IXGBE_FCOE_DDP_MAX - 1;
+			netdev_features_change(netdev);
 		}
 #endif /* IXGBE_FCOE */
 		ixgbe_init_interrupt_scheme(adapter);
@@ -177,7 +180,10 @@ static u8 ixgbe_dcbnl_set_state(struct net_device *netdev, u8 state)
 				adapter->ring_feature[RING_F_FCOE].indices = 0;
 				netdev->features &= ~NETIF_F_FCOE_CRC;
 				netdev->features &= ~NETIF_F_FSO;
+				netdev->vlan_features &= ~NETIF_F_FCOE_CRC;
+				netdev->vlan_features &= ~NETIF_F_FSO;
 				netdev->fcoe_ddp_xid = 0;
+				netdev_features_change(netdev);
 			}
 #endif /* IXGBE_FCOE */
 			ixgbe_init_interrupt_scheme(adapter);