diff options
Diffstat (limited to 'net/bridge/br.c')
| -rw-r--r-- | net/bridge/br.c | 96 |
1 files changed, 84 insertions, 12 deletions
diff --git a/net/bridge/br.c b/net/bridge/br.c index b6fe30e3768f..96e91d69a9a8 100644 --- a/net/bridge/br.c +++ b/net/bridge/br.c @@ -36,14 +36,17 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v bool changed_addr; int err; - if (dev->priv_flags & IFF_EBRIDGE) { + if (netif_is_bridge_master(dev)) { err = br_vlan_bridge_event(dev, event, ptr); if (err) return notifier_from_errno(err); if (event == NETDEV_REGISTER) { /* register of bridge completed, add sysfs entries */ - br_sysfs_addbr(dev); + err = br_sysfs_addbr(dev); + if (err) + return notifier_from_errno(err); + return NOTIFY_DONE; } } @@ -119,7 +122,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v break; case NETDEV_PRE_TYPE_CHANGE: - /* Forbid underlaying device to change its type. */ + /* Forbid underlying device to change its type. */ return NOTIFY_BAD; case NETDEV_RESEND_IGMP: @@ -183,6 +186,11 @@ static int br_switchdev_event(struct notifier_block *unused, br_fdb_offloaded_set(br, p, fdb_info->addr, fdb_info->vid, fdb_info->offloaded); break; + case SWITCHDEV_FDB_FLUSH_TO_BRIDGE: + fdb_info = ptr; + /* Don't delete static entries */ + br_fdb_delete_by_port(br, p, fdb_info->vid, 0); + break; } out: @@ -193,6 +201,48 @@ static struct notifier_block br_switchdev_notifier = { .notifier_call = br_switchdev_event, }; +/* called under rtnl_mutex */ +static int br_switchdev_blocking_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct netlink_ext_ack *extack = netdev_notifier_info_to_extack(ptr); + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct switchdev_notifier_brport_info *brport_info; + const struct switchdev_brport *b; + struct net_bridge_port *p; + int err = NOTIFY_DONE; + + p = br_port_get_rtnl(dev); + if (!p) + goto out; + + switch (event) { + case SWITCHDEV_BRPORT_OFFLOADED: + brport_info = ptr; + b = &brport_info->brport; + + err = br_switchdev_port_offload(p, b->dev, b->ctx, + b->atomic_nb, b->blocking_nb, + b->tx_fwd_offload, extack); + err = notifier_from_errno(err); + break; + case SWITCHDEV_BRPORT_UNOFFLOADED: + brport_info = ptr; + b = &brport_info->brport; + + br_switchdev_port_unoffload(p, b->ctx, b->atomic_nb, + b->blocking_nb); + break; + } + +out: + return err; +} + +static struct notifier_block br_switchdev_blocking_notifier = { + .notifier_call = br_switchdev_blocking_event, +}; + /* br_boolopt_toggle - change user-controlled boolean option * * @br: bridge device @@ -206,17 +256,25 @@ static struct notifier_block br_switchdev_notifier = { int br_boolopt_toggle(struct net_bridge *br, enum br_boolopt_id opt, bool on, struct netlink_ext_ack *extack) { + int err = 0; + switch (opt) { case BR_BOOLOPT_NO_LL_LEARN: br_opt_toggle(br, BROPT_NO_LL_LEARN, on); break; + case BR_BOOLOPT_MCAST_VLAN_SNOOPING: + err = br_multicast_toggle_vlan_snooping(br, on, extack); + break; + case BR_BOOLOPT_MST_ENABLE: + err = br_mst_set_enabled(br, on, extack); + break; default: /* shouldn't be called with unsupported options */ WARN_ON(1); break; } - return 0; + return err; } int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt) @@ -224,6 +282,10 @@ int br_boolopt_get(const struct net_bridge *br, enum br_boolopt_id opt) switch (opt) { case BR_BOOLOPT_NO_LL_LEARN: return br_opt_get(br, BROPT_NO_LL_LEARN); + case BR_BOOLOPT_MCAST_VLAN_SNOOPING: + return br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED); + case BR_BOOLOPT_MST_ENABLE: + return br_opt_get(br, BROPT_MST_ENABLED); default: /* shouldn't be called with unsupported options */ WARN_ON(1); @@ -285,23 +347,26 @@ void br_opt_toggle(struct net_bridge *br, enum net_bridge_opts opt, bool on) clear_bit(opt, &br->options); } -static void __net_exit br_net_exit(struct net *net) +static void __net_exit br_net_exit_batch(struct list_head *net_list) { struct net_device *dev; + struct net *net; LIST_HEAD(list); rtnl_lock(); - for_each_netdev(net, dev) - if (dev->priv_flags & IFF_EBRIDGE) - br_dev_delete(dev, &list); + + list_for_each_entry(net, net_list, exit_list) + for_each_netdev(net, dev) + if (netif_is_bridge_master(dev)) + br_dev_delete(dev, &list); unregister_netdevice_many(&list); - rtnl_unlock(); + rtnl_unlock(); } static struct pernet_operations br_net_ops = { - .exit = br_net_exit, + .exit_batch = br_net_exit_batch, }; static const struct stp_proto br_stp_proto = { @@ -340,11 +405,15 @@ static int __init br_init(void) if (err) goto err_out4; - err = br_netlink_init(); + err = register_switchdev_blocking_notifier(&br_switchdev_blocking_notifier); if (err) goto err_out5; - brioctl_set(br_ioctl_deviceless_stub); + err = br_netlink_init(); + if (err) + goto err_out6; + + brioctl_set(br_ioctl_stub); #if IS_ENABLED(CONFIG_ATM_LANE) br_fdb_test_addr_hook = br_fdb_test_addr; @@ -358,6 +427,8 @@ static int __init br_init(void) return 0; +err_out6: + unregister_switchdev_blocking_notifier(&br_switchdev_blocking_notifier); err_out5: unregister_switchdev_notifier(&br_switchdev_notifier); err_out4: @@ -377,6 +448,7 @@ static void __exit br_deinit(void) { stp_proto_unregister(&br_stp_proto); br_netlink_fini(); + unregister_switchdev_blocking_notifier(&br_switchdev_blocking_notifier); unregister_switchdev_notifier(&br_switchdev_notifier); unregister_netdevice_notifier(&br_device_notifier); brioctl_set(NULL); |