[VLAN]: Propagate selected feature bits to VLAN devices

Propagate feature bits from the NETDEV_FEAT_CHANGE notifier. For now
only TSO is propagated for devices that announce their ability to
support TSO in combination with VLAN accel by setting the NETIF_F_VLAN_TSO
flag.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 2 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b11e6e19e96c..2b0266484c84 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -514,10 +514,12 @@ struct net_device
 #define NETIF_F_NETNS_LOCAL     8192    /* Does not change network namespaces */
 #define NETIF_F_MULTI_QUEUE     16384   /* Has multiple TX/RX queues */
 #define NETIF_F_LRO             32768   /* large receive offload */
+#define NETIF_F_VLAN_TSO        65536   /* Supports TSO for VLANs */
+#define NETIF_F_VLAN_CSUM       131072  /* Supports TX checksumming for VLANs */
 
         /* Segmentation offload features */
-#define NETIF_F_GSO_SHIFT       16
-#define NETIF_F_GSO_MASK        0xffff0000
+#define NETIF_F_GSO_SHIFT       20
+#define NETIF_F_GSO_MASK        0xfff00000
 #define NETIF_F_TSO             (SKB_GSO_TCPV4 << NETIF_F_GSO_SHIFT)
 #define NETIF_F_UFO             (SKB_GSO_UDP << NETIF_F_GSO_SHIFT)
 #define NETIF_F_GSO_ROBUST      (SKB_GSO_DODGY << NETIF_F_GSO_SHIFT)