*/
static void port_carrier_check(void *arg)
{
- struct net_bridge_port *p = arg;
+ struct net_device *dev = arg;
+ struct net_bridge_port *p;
+ struct net_bridge *br;
rtnl_lock();
- if (netif_carrier_ok(p->dev)) {
- u32 cost = port_cost(p->dev);
+ p = dev->br_port;
+ if (!p)
+ goto done;
+ br = p->br;
+
+ if (netif_carrier_ok(dev))
+ p->path_cost = port_cost(dev);
- spin_lock_bh(&p->br->lock);
- if (p->state == BR_STATE_DISABLED) {
- p->path_cost = cost;
- br_stp_enable_port(p);
+ if (br->dev->flags & IFF_UP) {
+ spin_lock_bh(&br->lock);
+ if (netif_carrier_ok(dev)) {
+ if (p->state == BR_STATE_DISABLED)
+ br_stp_enable_port(p);
+ } else {
+ if (p->state != BR_STATE_DISABLED)
+ br_stp_disable_port(p);
}
- spin_unlock_bh(&p->br->lock);
- } else {
- spin_lock_bh(&p->br->lock);
- if (p->state != BR_STATE_DISABLED)
- br_stp_disable_port(p);
- spin_unlock_bh(&p->br->lock);
+ spin_unlock_bh(&br->lock);
}
+done:
rtnl_unlock();
}
+static void release_nbp(struct kobject *kobj)
+{
+ struct net_bridge_port *p
+ = container_of(kobj, struct net_bridge_port, kobj);
+ kfree(p);
+}
+
+static struct kobj_type brport_ktype = {
+#ifdef CONFIG_SYSFS
+ .sysfs_ops = &brport_sysfs_ops,
+#endif
+ .release = release_nbp,
+};
+
static void destroy_nbp(struct net_bridge_port *p)
{
struct net_device *dev = p->dev;
- dev->br_port = NULL;
p->br = NULL;
p->dev = NULL;
dev_put(dev);
- br_sysfs_freeif(p);
+ kobject_put(&p->kobj);
}
static void destroy_nbp_rcu(struct rcu_head *head)
struct net_bridge *br = p->br;
struct net_device *dev = p->dev;
- /* Race between RTNL notify and RCU callback */
- if (p->deleted)
- return;
+ sysfs_remove_link(&br->ifobj, dev->name);
dev_set_promiscuity(dev, -1);
cancel_delayed_work(&p->carrier_check);
- flush_scheduled_work();
spin_lock_bh(&br->lock);
br_stp_disable_port(p);
- p->deleted = 1;
spin_unlock_bh(&br->lock);
br_fdb_delete_by_port(br, p);
list_del_rcu(&p->list);
+ rcu_assign_pointer(dev->br_port, NULL);
+
+ kobject_uevent(&p->kobj, KOBJ_REMOVE);
+ kobject_del(&p->kobj);
+
call_rcu(&p->rcu, destroy_nbp_rcu);
}
struct net_bridge_port *p, *n;
list_for_each_entry_safe(p, n, &br->port_list, list) {
- br_sysfs_removeif(p);
del_nbp(p);
}
br->bridge_id.prio[0] = 0x80;
br->bridge_id.prio[1] = 0x00;
- memset(br->bridge_id.addr, 0, ETH_ALEN);
+
+ memcpy(br->group_addr, br_group_address, ETH_ALEN);
br->feature_mask = dev->features;
br->stp_enabled = 0;
struct net_bridge_port *p;
unsigned long *inuse;
- inuse = kmalloc(BITS_TO_LONGS(BR_MAX_PORTS)*sizeof(unsigned long),
+ inuse = kcalloc(BITS_TO_LONGS(BR_MAX_PORTS), sizeof(unsigned long),
GFP_KERNEL);
if (!inuse)
return -ENOMEM;
- memset(inuse, 0, BITS_TO_LONGS(BR_MAX_PORTS)*sizeof(unsigned long));
set_bit(0, inuse); /* zero is reserved */
list_for_each_entry(p, &br->port_list, list) {
set_bit(p->port_no, inuse);
if (index < 0)
return ERR_PTR(index);
- p = kmalloc(sizeof(*p), GFP_KERNEL);
+ p = kzalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL)
return ERR_PTR(-ENOMEM);
- memset(p, 0, sizeof(*p));
p->br = br;
dev_hold(dev);
p->dev = dev;
p->path_cost = port_cost(dev);
p->priority = 0x8000 >> BR_PORT_BITS;
- dev->br_port = p;
p->port_no = index;
br_init_port(p);
p->state = BR_STATE_DISABLED;
- INIT_WORK(&p->carrier_check, port_carrier_check, p);
+ INIT_WORK(&p->carrier_check, port_carrier_check, dev);
+ br_stp_port_timer_init(p);
+
kobject_init(&p->kobj);
+ kobject_set_name(&p->kobj, SYSFS_BRIDGE_PORT_ATTR);
+ p->kobj.ktype = &brport_ktype;
+ p->kobj.parent = &(dev->class_dev.kobj);
+ p->kobj.kset = NULL;
return p;
}
if (ret)
goto err2;
- /* network device kobject is not setup until
- * after rtnl_unlock does it's hotplug magic.
- * so hold reference to avoid race.
- */
- dev_hold(dev);
- rtnl_unlock();
-
ret = br_sysfs_addbr(dev);
- dev_put(dev);
-
- if (ret)
- unregister_netdev(dev);
- out:
- return ret;
+ if (ret)
+ goto err3;
+ rtnl_unlock();
+ return 0;
+ err3:
+ unregister_netdev(dev);
err2:
free_netdev(dev);
err1:
rtnl_unlock();
- goto out;
+ return ret;
}
int br_del_bridge(const char *name)
if (dev->br_port != NULL)
return -EBUSY;
- if (IS_ERR(p = new_nbp(br, dev)))
+ p = new_nbp(br, dev);
+ if (IS_ERR(p))
return PTR_ERR(p);
- if ((err = br_fdb_insert(br, p, dev->dev_addr)))
- destroy_nbp(p);
-
- else if ((err = br_sysfs_addif(p)))
- del_nbp(p);
- else {
- dev_set_promiscuity(dev, 1);
+ err = kobject_add(&p->kobj);
+ if (err)
+ goto err0;
- list_add_rcu(&p->list, &br->port_list);
+ err = br_fdb_insert(br, p, dev->dev_addr);
+ if (err)
+ goto err1;
- spin_lock_bh(&br->lock);
- br_stp_recalculate_bridge_id(br);
- br_features_recompute(br);
- if ((br->dev->flags & IFF_UP)
- && (dev->flags & IFF_UP) && netif_carrier_ok(dev))
- br_stp_enable_port(p);
- spin_unlock_bh(&br->lock);
+ err = br_sysfs_addif(p);
+ if (err)
+ goto err2;
- dev_set_mtu(br->dev, br_min_mtu(br));
- }
+ rcu_assign_pointer(dev->br_port, p);
+ dev_set_promiscuity(dev, 1);
+ list_add_rcu(&p->list, &br->port_list);
+
+ spin_lock_bh(&br->lock);
+ br_stp_recalculate_bridge_id(br);
+ br_features_recompute(br);
+ schedule_delayed_work(&p->carrier_check, BR_PORT_DEBOUNCE);
+ spin_unlock_bh(&br->lock);
+
+ dev_set_mtu(br->dev, br_min_mtu(br));
+ kobject_uevent(&p->kobj, KOBJ_ADD);
+
+ return 0;
+err2:
+ br_fdb_delete_by_port(br, p);
+err1:
+ kobject_del(&p->kobj);
+err0:
+ kobject_put(&p->kobj);
return err;
}
if (!p || p->br != br)
return -EINVAL;
- br_sysfs_removeif(p);
del_nbp(p);
spin_lock_bh(&br->lock);
projects / linux-2.6-omap-h63xx.git / blobdiff