net: add netif_is_ovs_master helper with IFF_OPENVSWITCH private flag

Add this helper so code can easily figure out if netdev is openswitch.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 1 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index be625f4754b9..6656a43c072d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1264,6 +1264,7 @@ struct net_device_ops {
  * @IFF_MACVLAN: Macvlan device
  * @IFF_VRF_MASTER: device is a VRF master
  * @IFF_NO_QUEUE: device can run without qdisc attached
+ * @IFF_OPENVSWITCH: device is a Open vSwitch master
  */
 enum netdev_priv_flags {
         IFF_802_1Q_VLAN                 = 1<<0,
@@ -1293,6 +1294,7 @@ enum netdev_priv_flags {
         IFF_IPVLAN_SLAVE                = 1<<24,
         IFF_VRF_MASTER                  = 1<<25,
         IFF_NO_QUEUE                    = 1<<26,
+        IFF_OPENVSWITCH                 = 1<<27,
 };
 
 #define IFF_802_1Q_VLAN                 IFF_802_1Q_VLAN
@@ -1322,6 +1324,7 @@ enum netdev_priv_flags {
 #define IFF_IPVLAN_SLAVE                IFF_IPVLAN_SLAVE
 #define IFF_VRF_MASTER                  IFF_VRF_MASTER
 #define IFF_NO_QUEUE                    IFF_NO_QUEUE
+#define IFF_OPENVSWITCH                 IFF_OPENVSWITCH
 
 /**
  *      struct net_device - The DEVICE structure.
@@ -3853,6 +3856,11 @@ static inline bool netif_is_bridge_master(const struct net_device *dev)
         return dev->priv_flags & IFF_EBRIDGE;
 }
 
+static inline bool netif_is_ovs_master(const struct net_device *dev)
+{
+        return dev->priv_flags & IFF_OPENVSWITCH;
+}
+
 static inline bool netif_index_is_vrf(struct net *net, int ifindex)
 {
         bool rc = false;
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index c058bbf876c3..80b3e12ec882 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -135,7 +135,7 @@ static void do_setup(struct net_device *netdev)
         netdev->netdev_ops = &internal_dev_netdev_ops;
 
         netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
-        netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+        netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_OPENVSWITCH;
         netdev->destructor = internal_dev_destructor;
         netdev->ethtool_ops = &internal_dev_ethtool_ops;
         netdev->rtnl_link_ops = &internal_dev_link_ops;