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bridge: mdb: Separate br_mdb_entry->state from net_bridge_port_group->state

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Change net_bridge_port_group 'state' member to 'flags' and define new set
of flags internal to the kernel.

Signed-off-by: Elad Raz <eladr@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Elad Raz 2016-02-03 09:57:05 +01:00 committed by David S. Miller
parent 157ede6784
commit 9d06b6d8a3
3 changed files with 26 additions and 15 deletions
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16
net/bridge/br_mdb.c
View File

@ -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);

16
net/bridge/br_multicast.c
View File

@ -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))

9
net/bridge/br_private.h
View File

@ -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);