From 9e8430f8d60d985c9f292b5eb5790cc13a87200c Mon Sep 17 00:00:00 2001 From: Elad Raz Date: Wed, 3 Feb 2016 09:57:06 +0100 Subject: [PATCH] bridge: mdb: Passing the port-group pointer to br_mdb module Passing the port-group to br_mdb in order to allow direct access to the structure. br_mdb will later use the structure to reflect HW reflection status via "state" variable. Signed-off-by: Elad Raz Signed-off-by: Jiri Pirko Signed-off-by: David S. Miller --- net/bridge/br_mdb.c | 51 ++++++++++++++++++++++----------------- net/bridge/br_multicast.c | 8 +++--- net/bridge/br_private.h | 4 +-- 3 files changed, 34 insertions(+), 29 deletions(-) diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c index 5312570e79fa..ac089286526e 100644 --- a/net/bridge/br_mdb.c +++ b/net/bridge/br_mdb.c @@ -217,7 +217,7 @@ static inline size_t rtnl_mdb_nlmsg_size(void) } static void __br_mdb_notify(struct net_device *dev, struct br_mdb_entry *entry, - int type) + int type, struct net_bridge_port_group *pg) { struct switchdev_obj_port_mdb mdb = { .obj = { @@ -240,10 +240,13 @@ static void __br_mdb_notify(struct net_device *dev, struct br_mdb_entry *entry, #endif mdb.obj.orig_dev = port_dev; - if (port_dev && type == RTM_NEWMDB) - switchdev_port_obj_add(port_dev, &mdb.obj); - else if (port_dev && type == RTM_DELMDB) + if (port_dev && type == RTM_NEWMDB) { + err = switchdev_port_obj_add(port_dev, &mdb.obj); + if (!err && pg) + pg->flags |= MDB_PG_FLAGS_OFFLOAD; + } else if (port_dev && type == RTM_DELMDB) { switchdev_port_obj_del(port_dev, &mdb.obj); + } skb = nlmsg_new(rtnl_mdb_nlmsg_size(), GFP_ATOMIC); if (!skb) @@ -261,21 +264,21 @@ errout: rtnl_set_sk_err(net, RTNLGRP_MDB, err); } -void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port, - struct br_ip *group, int type, u8 flags) +void br_mdb_notify(struct net_device *dev, struct net_bridge_port_group *pg, + int type) { struct br_mdb_entry entry; memset(&entry, 0, sizeof(entry)); - entry.ifindex = port->dev->ifindex; - entry.addr.proto = group->proto; - entry.addr.u.ip4 = group->u.ip4; + entry.ifindex = pg->port->dev->ifindex; + entry.addr.proto = pg->addr.proto; + entry.addr.u.ip4 = pg->addr.u.ip4; #if IS_ENABLED(CONFIG_IPV6) - entry.addr.u.ip6 = group->u.ip6; + entry.addr.u.ip6 = pg->addr.u.ip6; #endif - entry.vid = group->vid; - __mdb_entry_fill_flags(&entry, flags); - __br_mdb_notify(dev, &entry, type); + entry.vid = pg->addr.vid; + __mdb_entry_fill_flags(&entry, pg->flags); + __br_mdb_notify(dev, &entry, type, pg); } static int nlmsg_populate_rtr_fill(struct sk_buff *skb, @@ -420,7 +423,8 @@ static int br_mdb_parse(struct sk_buff *skb, struct nlmsghdr *nlh, } static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, - struct br_ip *group, unsigned char state) + struct br_ip *group, unsigned char state, + struct net_bridge_port_group **pg) { struct net_bridge_mdb_entry *mp; struct net_bridge_port_group *p; @@ -451,6 +455,7 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, if (unlikely(!p)) return -ENOMEM; rcu_assign_pointer(*pp, p); + *pg = p; if (state == MDB_TEMPORARY) mod_timer(&p->timer, now + br->multicast_membership_interval); @@ -458,7 +463,8 @@ static int br_mdb_add_group(struct net_bridge *br, struct net_bridge_port *port, } static int __br_mdb_add(struct net *net, struct net_bridge *br, - struct br_mdb_entry *entry) + struct br_mdb_entry *entry, + struct net_bridge_port_group **pg) { struct br_ip ip; struct net_device *dev; @@ -487,7 +493,7 @@ static int __br_mdb_add(struct net *net, struct net_bridge *br, #endif spin_lock_bh(&br->multicast_lock); - ret = br_mdb_add_group(br, p, &ip, entry->state); + ret = br_mdb_add_group(br, p, &ip, entry->state, pg); spin_unlock_bh(&br->multicast_lock); return ret; } @@ -495,6 +501,7 @@ static int __br_mdb_add(struct net *net, struct net_bridge *br, static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh) { struct net *net = sock_net(skb->sk); + struct net_bridge_port_group *pg; struct net_bridge_vlan_group *vg; struct net_device *dev, *pdev; struct br_mdb_entry *entry; @@ -524,15 +531,15 @@ static int br_mdb_add(struct sk_buff *skb, struct nlmsghdr *nlh) if (br_vlan_enabled(br) && vg && entry->vid == 0) { list_for_each_entry(v, &vg->vlan_list, vlist) { entry->vid = v->vid; - err = __br_mdb_add(net, br, entry); + err = __br_mdb_add(net, br, entry, &pg); if (err) break; - __br_mdb_notify(dev, entry, RTM_NEWMDB); + __br_mdb_notify(dev, entry, RTM_NEWMDB, pg); } } else { - err = __br_mdb_add(net, br, entry); + err = __br_mdb_add(net, br, entry, &pg); if (!err) - __br_mdb_notify(dev, entry, RTM_NEWMDB); + __br_mdb_notify(dev, entry, RTM_NEWMDB, pg); } return err; @@ -628,12 +635,12 @@ static int br_mdb_del(struct sk_buff *skb, struct nlmsghdr *nlh) entry->vid = v->vid; err = __br_mdb_del(br, entry); if (!err) - __br_mdb_notify(dev, entry, RTM_DELMDB); + __br_mdb_notify(dev, entry, RTM_DELMDB, NULL); } } else { err = __br_mdb_del(br, entry); if (!err) - __br_mdb_notify(dev, entry, RTM_DELMDB); + __br_mdb_notify(dev, entry, RTM_DELMDB, NULL); } return err; diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index d156491ee4e8..8b6e4249be1b 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -283,8 +283,7 @@ static void br_multicast_del_pg(struct net_bridge *br, rcu_assign_pointer(*pp, p->next); hlist_del_init(&p->mglist); del_timer(&p->timer); - br_mdb_notify(br->dev, p->port, &pg->addr, RTM_DELMDB, - p->flags); + br_mdb_notify(br->dev, p, RTM_DELMDB); call_rcu_bh(&p->rcu, br_multicast_free_pg); if (!mp->ports && !mp->mglist && @@ -706,7 +705,7 @@ static int br_multicast_add_group(struct net_bridge *br, if (unlikely(!p)) goto err; rcu_assign_pointer(*pp, p); - br_mdb_notify(br->dev, port, group, RTM_NEWMDB, 0); + br_mdb_notify(br->dev, p, RTM_NEWMDB); found: mod_timer(&p->timer, now + br->multicast_membership_interval); @@ -1453,8 +1452,7 @@ br_multicast_leave_group(struct net_bridge *br, hlist_del_init(&p->mglist); del_timer(&p->timer); call_rcu_bh(&p->rcu, br_multicast_free_pg); - br_mdb_notify(br->dev, port, group, RTM_DELMDB, - p->flags); + br_mdb_notify(br->dev, p, RTM_DELMDB); if (!mp->ports && !mp->mglist && netif_running(br->dev)) diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 67f4dce3c3d2..302ab0a43725 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -560,8 +560,8 @@ br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group, 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 flags); +void br_mdb_notify(struct net_device *dev, struct net_bridge_port_group *pg, + int type); void br_rtr_notify(struct net_device *dev, struct net_bridge_port *port, int type); -- 2.20.1