1 /* SPDX-License-Identifier: GPL-2.0-or-later
2 * Copyright (c) 2020, Nikolay Aleksandrov <nikolay@nvidia.com>
4 #ifndef _BR_PRIVATE_MCAST_EHT_H_
5 #define _BR_PRIVATE_MCAST_EHT_H_
7 #define BR_MCAST_DEFAULT_EHT_HOSTS_LIMIT 512
9 union net_bridge_eht_addr {
11 #if IS_ENABLED(CONFIG_IPV6)
16 /* single host's list of set entries and filter_mode */
17 struct net_bridge_group_eht_host {
18 struct rb_node rb_node;
20 union net_bridge_eht_addr h_addr;
21 struct hlist_head set_entries;
22 unsigned int num_entries;
23 unsigned char filter_mode;
24 struct net_bridge_port_group *pg;
27 /* (host, src entry) added to a per-src set and host's list */
28 struct net_bridge_group_eht_set_entry {
29 struct rb_node rb_node;
30 struct hlist_node host_list;
32 union net_bridge_eht_addr h_addr;
33 struct timer_list timer;
34 struct net_bridge *br;
35 struct net_bridge_group_eht_set *eht_set;
36 struct net_bridge_group_eht_host *h_parent;
37 struct net_bridge_mcast_gc mcast_gc;
41 struct net_bridge_group_eht_set {
42 struct rb_node rb_node;
44 union net_bridge_eht_addr src_addr;
45 struct rb_root entry_tree;
46 struct timer_list timer;
47 struct net_bridge_port_group *pg;
48 struct net_bridge *br;
49 struct net_bridge_mcast_gc mcast_gc;
52 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
53 void br_multicast_eht_clean_sets(struct net_bridge_port_group *pg);
54 bool br_multicast_eht_handle(struct net_bridge_port_group *pg,
60 int br_multicast_eht_set_hosts_limit(struct net_bridge_port *p,
64 br_multicast_eht_should_del_pg(const struct net_bridge_port_group *pg)
66 return !!((pg->key.port->flags & BR_MULTICAST_FAST_LEAVE) &&
67 RB_EMPTY_ROOT(&pg->eht_host_tree));
71 br_multicast_eht_hosts_over_limit(const struct net_bridge_port_group *pg)
73 const struct net_bridge_port *p = pg->key.port;
75 return !!(p->multicast_eht_hosts_cnt >= p->multicast_eht_hosts_limit);
78 static inline void br_multicast_eht_hosts_inc(struct net_bridge_port_group *pg)
80 struct net_bridge_port *p = pg->key.port;
82 p->multicast_eht_hosts_cnt++;
85 static inline void br_multicast_eht_hosts_dec(struct net_bridge_port_group *pg)
87 struct net_bridge_port *p = pg->key.port;
89 p->multicast_eht_hosts_cnt--;
91 #endif /* CONFIG_BRIDGE_IGMP_SNOOPING */
93 #endif /* _BR_PRIVATE_MCAST_EHT_H_ */