1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (c) 2018, Intel Corporation. */
3 
4 #ifndef _NET_FAILOVER_H
5 #define _NET_FAILOVER_H
6 
7 #include <net/failover.h>
8 
9 /* failover state */
10 struct net_failover_info {
11 	/* primary netdev with same MAC */
12 	struct net_device __rcu *primary_dev;
13 
14 	/* standby netdev */
15 	struct net_device __rcu *standby_dev;
16 
17 	/* primary netdev stats */
18 	struct rtnl_link_stats64 primary_stats;
19 
20 	/* standby netdev stats */
21 	struct rtnl_link_stats64 standby_stats;
22 
23 	/* aggregated stats */
24 	struct rtnl_link_stats64 failover_stats;
25 
26 	/* spinlock while updating stats */
27 	spinlock_t stats_lock;
28 };
29 
30 struct failover *net_failover_create(struct net_device *standby_dev);
31 void net_failover_destroy(struct failover *failover);
32 
33 #define FAILOVER_VLAN_FEATURES	(NETIF_F_HW_CSUM | NETIF_F_SG | \
34 				 NETIF_F_FRAGLIST | NETIF_F_ALL_TSO | \
35 				 NETIF_F_HIGHDMA | NETIF_F_LRO)
36 
37 #define FAILOVER_ENC_FEATURES	(NETIF_F_HW_CSUM | NETIF_F_SG | \
38 				 NETIF_F_RXCSUM | NETIF_F_ALL_TSO)
39 
40 #endif /* _NET_FAILOVER_H */
41