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authorAlexander Duyck <aduyck@mirantis.com>2016-06-16 12:21:00 -0700
committerDavid S. Miller <davem@davemloft.net>2016-06-17 20:23:29 -0700
commit7c46a640de6fcc4f35d0702710356a024eadf68f (patch)
tree0d19073b6febba8a3256dcd2928262e783f9643d /include/linux/netdevice.h
parente7b3db5e60e8f471c3f5ef93b497bafe5863e56a (diff)
net: Merge VXLAN and GENEVE push notifiers into a single notifier
This patch merges the notifiers for VXLAN and GENEVE into a single UDP tunnel notifier. The idea is that we will want to only have to make one notifier call to receive the list of ports for VXLAN and GENEVE tunnels that need to be offloaded. In addition we add a new set of ndo functions named ndo_udp_tunnel_add and ndo_udp_tunnel_del that are meant to allow us to track the tunnel meta-data such as port and address family as tunnels are added and removed. The tunnel meta-data is now transported in a structure named udp_tunnel_info which for now carries the type, address family, and port number. In the future this could be updated so that we can include a tuple of values including things such as the destination IP address and other fields. I also ended up going with a naming scheme that consisted of using the prefix udp_tunnel on function names. I applied this to the notifier and ndo ops as well so that it hopefully points to the fact that these are primarily used in the udp_tunnel functions. Signed-off-by: Alexander Duyck <aduyck@mirantis.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netdevice.h')
-rw-r--r--include/linux/netdevice.h22
1 files changed, 20 insertions, 2 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 890158e99159..577d2a1814b1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -61,6 +61,8 @@ struct wireless_dev;
/* 802.15.4 specific */
struct wpan_dev;
struct mpls_dev;
+/* UDP Tunnel offloads */
+struct udp_tunnel_info;
void netdev_set_default_ethtool_ops(struct net_device *dev,
const struct ethtool_ops *ops);
@@ -1050,6 +1052,19 @@ struct tc_to_netdev {
* address family that vxlan is not listening to anymore. The operation
* is protected by the vxlan_net->sock_lock.
*
+ * void (*ndo_udp_tunnel_add)(struct net_device *dev,
+ * struct udp_tunnel_info *ti);
+ * Called by UDP tunnel to notify a driver about the UDP port and socket
+ * address family that a UDP tunnel is listnening to. It is called only
+ * when a new port starts listening. The operation is protected by the
+ * RTNL.
+ *
+ * void (*ndo_udp_tunnel_del)(struct net_device *dev,
+ * struct udp_tunnel_info *ti);
+ * Called by UDP tunnel to notify the driver about a UDP port and socket
+ * address family that the UDP tunnel is not listening to anymore. The
+ * operation is protected by the RTNL.
+ *
* void* (*ndo_dfwd_add_station)(struct net_device *pdev,
* struct net_device *dev)
* Called by upper layer devices to accelerate switching or other
@@ -1269,6 +1284,10 @@ struct net_device_ops {
void (*ndo_del_geneve_port)(struct net_device *dev,
sa_family_t sa_family,
__be16 port);
+ void (*ndo_udp_tunnel_add)(struct net_device *dev,
+ struct udp_tunnel_info *ti);
+ void (*ndo_udp_tunnel_del)(struct net_device *dev,
+ struct udp_tunnel_info *ti);
void* (*ndo_dfwd_add_station)(struct net_device *pdev,
struct net_device *dev);
void (*ndo_dfwd_del_station)(struct net_device *pdev,
@@ -2255,8 +2274,7 @@ struct netdev_lag_lower_state_info {
#define NETDEV_BONDING_INFO 0x0019
#define NETDEV_PRECHANGEUPPER 0x001A
#define NETDEV_CHANGELOWERSTATE 0x001B
-#define NETDEV_OFFLOAD_PUSH_VXLAN 0x001C
-#define NETDEV_OFFLOAD_PUSH_GENEVE 0x001D
+#define NETDEV_UDP_TUNNEL_PUSH_INFO 0x001C
int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);