From 9d06b6d8a3fcba8eb8e1c62c92942452afea8057 Mon Sep 17 00:00:00 2001 From: Elad Raz Date: Wed, 3 Feb 2016 09:57:05 +0100 Subject: [PATCH] bridge: mdb: Separate br_mdb_entry->state from net_bridge_port_group->state Change net_bridge_port_group 'state' member to 'flags' and define new set of flags internal to the kernel. Signed-off-by: Elad Raz Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- net/bridge/br_mdb.c | 16 ++++++++++++---- net/bridge/br_multicast.c | 16 ++++++++-------- net/bridge/br_private.h | 9 ++++++--- 3 files changed, 26 insertions(+), 15 deletions(-) diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index 30e105f57f0d..5312570e79fa 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -41,6 +41,14 @@ fail: return -EMSGSIZE; } +static void __mdb_entry_fill_flags(struct br_mdb_entry *e, unsigned char flags) +{ + e->state = flags & MDB_PG_FLAGS_PERMANENT; + e->flags = 0; + if (flags & MDB_PG_FLAGS_OFFLOAD) + e->flags |= MDB_FLAGS_OFFLOAD; +} + static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, struct net_device *dev) { @@ -85,8 +93,8 @@ static int br_mdb_fill_info(struct sk_buff *skb, struct netlink_callback *cb, struct br_mdb_entry e; memset(&e, 0, sizeof(e)); e.ifindex = port->dev->ifindex; - e.state = p->state; e.vid = p->addr.vid; + __mdb_entry_fill_flags(&e, p->flags); if (p->addr.proto == htons(ETH_P_IP)) e.addr.u.ip4 = p->addr.u.ip4; #if IS_ENABLED(CONFIG_IPV6) @@ -254,7 +262,7 @@ errout: } void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, - struct br_ip *group, int type, u8 state) + struct br_ip *group, int type, u8 flags) { struct br_mdb_entry entry; @@ -265,8 +273,8 @@ void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, #if IS_ENABLED(CONFIG_IPV6) entry.addr.u.ip6 = group->u.ip6; #endif - entry.state = state; entry.vid = group->vid; + __mdb_entry_fill_flags(&entry, flags); __br_mdb_notify(dev, &entry, type); } @@ -568,7 +576,7 @@ static int __br_mdb_del(struct net_bridge *br, struct br_mdb_entry *entry) if (p->port->state == BR_STATE_DISABLED) goto unlock; - entry->state = p->state; + __mdb_entry_fill_flags(entry, p->flags); rcu_assign_pointer(*pp, p->next); hlist_del_init(&p->mglist); del_timer(&p->timer); diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 03661d97463c..d156491ee4e8 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -284,7 +284,7 @@ static void br_multicast_del_pg(struct net_bridge *br, hlist_del_init(&p->mglist); del_timer(&p->timer); br_mdb_notify(br->dev, p->port, &pg->addr, RTM_DELMDB, - p->state); + p->flags); call_rcu_bh(&p->rcu, br_multicast_free_pg); if (!mp->ports && !mp->mglist && @@ -304,7 +304,7 @@ static void br_multicast_port_group_expired(unsigned long data) spin_lock(&br->multicast_lock); if (!netif_running(br->dev) || timer_pending(&pg->timer) || - hlist_unhashed(&pg->mglist) || pg->state & MDB_PERMANENT) + hlist_unhashed(&pg->mglist) || pg->flags & MDB_PG_FLAGS_PERMANENT) goto out; br_multicast_del_pg(br, pg); @@ -649,7 +649,7 @@ struct net_bridge_port_group *br_multicast_new_port_group( struct net_bridge_port *port, struct br_ip *group, struct net_bridge_port_group __rcu *next, - unsigned char state) + unsigned char flags) { struct net_bridge_port_group *p; @@ -659,7 +659,7 @@ struct net_bridge_port_group *br_multicast_new_port_group( p->addr = *group; p->port = port; - p->state = state; + p->flags = flags; rcu_assign_pointer(p->next, next); hlist_add_head(&p->mglist, &port->mglist); setup_timer(&p->timer, br_multicast_port_group_expired, @@ -702,11 +702,11 @@ static int br_multicast_add_group(struct net_bridge *br, break; } - p = br_multicast_new_port_group(port, group, *pp, MDB_TEMPORARY); + p = br_multicast_new_port_group(port, group, *pp, 0); if (unlikely(!p)) goto err; rcu_assign_pointer(*pp, p); - br_mdb_notify(br->dev, port, group, RTM_NEWMDB, MDB_TEMPORARY); + br_mdb_notify(br->dev, port, group, RTM_NEWMDB, 0); found: mod_timer(&p->timer, now + br->multicast_membership_interval); @@ -975,7 +975,7 @@ void br_multicast_disable_port(struct net_bridge_port *port) spin_lock(&br->multicast_lock); hlist_for_each_entry_safe(pg, n, &port->mglist, mglist) - if (pg->state == MDB_TEMPORARY) + if (!(pg->flags & MDB_PG_FLAGS_PERMANENT)) br_multicast_del_pg(br, pg); if (!hlist_unhashed(&port->rlist)) { @@ -1454,7 +1454,7 @@ br_multicast_leave_group(struct net_bridge *br, del_timer(&p->timer); call_rcu_bh(&p->rcu, br_multicast_free_pg); br_mdb_notify(br->dev, port, group, RTM_DELMDB, - p->state); + p->flags); if (!mp->ports && !mp->mglist && netif_running(br->dev)) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 216018c76018..67f4dce3c3d2 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -150,6 +150,9 @@ struct net_bridge_fdb_entry struct rcu_head rcu; }; +#define MDB_PG_FLAGS_PERMANENT BIT(0) +#define MDB_PG_FLAGS_OFFLOAD BIT(1) + struct net_bridge_port_group { struct net_bridge_port *port; struct net_bridge_port_group __rcu *next; @@ -157,7 +160,7 @@ struct net_bridge_port_group { struct rcu_head rcu; struct timer_list timer; struct br_ip addr; - unsigned char state; + unsigned char flags; }; struct net_bridge_mdb_entry @@ -554,11 +557,11 @@ void br_multicast_free_pg(struct rcu_head *head); struct net_bridge_port_group * br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, struct net_bridge_port_group __rcu *next, - unsigned char state); + unsigned char flags); void br_mdb_init(void); void br_mdb_uninit(void); void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, - struct br_ip *group, int type, u8 state); + struct br_ip *group, int type, u8 flags); void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, int type); -- 2.20.1