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authorHannes Frederic Sowa <hannes@stressinduktion.org>2016-04-18 21:19:47 +0200
committerDavid S. Miller <davem@davemloft.net>2016-04-21 15:35:44 -0400
commitb7aade15485a660cbf5161962c284131324a9534 (patch)
tree4030abc9519f6497fc7f937dae808da4d25fad05 /include/linux/netdevice.h
parent50d65d78897ff9785b7debbdca0030967cd5772d (diff)
vxlan: break dependency with netdev drivers
Currently all drivers depend and autoload the vxlan module because how vxlan_get_rx_port is linked into them. Remove this dependency: By using a new event type in the netdevice notifier call chain we proxy the request from the drivers to flush and resetup the vxlan ports not directly via function call but by the already existing netdevice notifier call chain. I added a separate new event type, NETDEV_OFFLOAD_PUSH_VXLAN, to do so. We don't need to save those ids, as the event type field is an unsigned long and using specialized event types for this purpose seemed to be a more elegant way. This also comes in beneficial if in future we want to add offloading knobs for vxlan. Cc: Jesse Gross <jesse@kernel.org> Signed-off-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.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a3bb534576a3..d4c8cd424f8d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2244,6 +2244,7 @@ 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
int register_netdevice_notifier(struct notifier_block *nb);
int unregister_netdevice_notifier(struct notifier_block *nb);