Add the ability to determine whether a netdev is a VxLAN netdev by
calling the above mentioned function that checks the netdev's private
flags.
This will allow modules to identify netdev events involving a VxLAN
netdev and act accordingly. For example, drivers capable of VxLAN
offload will need to configure the underlying device when a VxLAN netdev
is being enslaved to an offloaded bridge.
Signed-off-by: Ido Schimmel <idosch@xxxxxxxxxxxx>
Reviewed-by: Petr Machata <petrm@xxxxxxxxxxxx>
---
drivers/net/vxlan.c | 1 +
include/linux/netdevice.h | 8 ++++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index a646aa8e98ff..9bfd562aa81c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -3178,6 +3178,7 @@ static int __vxlan_dev_create(struct net *net, struct net_device *dev,
if (err)
return err;
+ dev->priv_flags |= IFF_VXLAN;
dev->ethtool_ops = &vxlan_ethtool_ops;
/* create an fdb entry for a valid default destination */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 22e4ef7bb701..290083ff285a 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1487,6 +1487,7 @@ struct net_device_ops {
* @IFF_NO_RX_HANDLER: device doesn't support the rx_handler hook
* @IFF_FAILOVER: device is a failover master device
* @IFF_FAILOVER_SLAVE: device is lower dev of a failover master device
+ * @IFF_VXLAN: device is a VxLAN device
*/
enum netdev_priv_flags {
IFF_802_1Q_VLAN = 1<<0,
@@ -1518,6 +1519,7 @@ enum netdev_priv_flags {
IFF_NO_RX_HANDLER = 1<<26,
IFF_FAILOVER = 1<<27,
IFF_FAILOVER_SLAVE = 1<<28,
+ IFF_VXLAN = 1<<29,
};
#define IFF_802_1Q_VLAN IFF_802_1Q_VLAN
@@ -1548,6 +1550,7 @@ enum netdev_priv_flags {
#define IFF_NO_RX_HANDLER IFF_NO_RX_HANDLER
#define IFF_FAILOVER IFF_FAILOVER
#define IFF_FAILOVER_SLAVE IFF_FAILOVER_SLAVE
+#define IFF_VXLAN IFF_VXLAN
/**
* struct net_device - The DEVICE structure.
@@ -4567,6 +4570,11 @@ static inline bool netif_is_failover_slave(const struct net_device *dev)
return dev->priv_flags & IFF_FAILOVER_SLAVE;
}
+static inline bool netif_is_vxlan(const struct net_device *dev)
+{
+ return dev->priv_flags & IFF_VXLAN;
+}
+
/* This device needs to keep skb dst for qdisc enqueue or ndo_start_xmit() */
static inline void netif_keep_dst(struct net_device *dev)
{
--
2.17.2
