net: bridge: multicast: make tracked EHT hosts limit configurable
Add two new port attributes which make EHT hosts limit configurable and
export the current number of tracked EHT hosts:
- IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT: configure/retrieve current limit
- IFLA_BRPORT_MCAST_EHT_HOSTS_CNT: current number of tracked hosts
Setting IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT to 0 is currently not allowed.
Note that we have to increase RTNL_SLAVE_MAX_TYPE to 38 minimum, I've
increased it to 40 to have space for two more future entries.
v2: move br_multicast_eht_set_hosts_limit() to br_multicast_eht.c,
no functional change
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
diff --git a/net/bridge/br_private_mcast_eht.h b/net/bridge/br_private_mcast_eht.h
index b2c8d98..f89049f 100644
--- a/net/bridge/br_private_mcast_eht.h
+++ b/net/bridge/br_private_mcast_eht.h
@@ -57,6 +57,8 @@ bool br_multicast_eht_handle(struct net_bridge_port_group *pg,
u32 nsrcs,
size_t addr_size,
int grec_type);
+int br_multicast_eht_set_hosts_limit(struct net_bridge_port *p,
+ u32 eht_hosts_limit);
static inline bool
br_multicast_eht_should_del_pg(const struct net_bridge_port_group *pg)
