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net: add infrastructure to un-offload UDP tunnel port

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This adds a new NETDEV_UDP_TUNNEL_DROP_INFO event, similar to
NETDEV_UDP_TUNNEL_PUSH_INFO, to signal to un-offload ports.

This also adds udp_tunnel_drop_rx_port(), which calls
ndo_udp_tunnel_del.

Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sabrina Dubroca
2017-07-21 12:49:30 +02:00
committed by David S. Miller
parent 7a27fc6d53
commit 296d8ee37c
3 changed files with 27 additions and 0 deletions
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include/linux/netdevice.h
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@@ -2317,6 +2317,7 @@ struct netdev_lag_lower_state_info {
#define NETDEV_PRECHANGEUPPER 0x001A
#define NETDEV_CHANGELOWERSTATE 0x001B
#define NETDEV_UDP_TUNNEL_PUSH_INFO 0x001C
#define NETDEV_UDP_TUNNEL_DROP_INFO 0x001D
#define NETDEV_CHANGE_TX_QUEUE_LEN 0x001E
int register_netdevice_notifier(struct notifier_block *nb);