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authorPetr Machata <petrm@mellanox.com>2018-12-07 22:55:07 +0300
committerDavid S. Miller <davem@davemloft.net>2018-12-07 23:59:08 +0300
commit43920edf3b24b0a3d136019c816e84ffcbef83ab (patch)
treefca00c929de803dcf1e8762ebda6bab60860a4c3 /net/bridge
parente5ff4b1952893fb75aa75067fce31c8567341ed7 (diff)
downloadlinux-43920edf3b24b0a3d136019c816e84ffcbef83ab.tar.xz
bridge: Add br_fdb_clear_offload()
When a driver unoffloads all FDB entries en bloc, it's inefficient to send the switchdev notification one by one. Add a helper that unsets the offload flag on FDB entries on a given bridge port and VLAN. Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_fdb.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index e56ba3912a90..38b1d0dd0529 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -1164,3 +1164,23 @@ void br_fdb_offloaded_set(struct net_bridge *br, struct net_bridge_port *p,
spin_unlock_bh(&br->hash_lock);
}
+
+void br_fdb_clear_offload(const struct net_device *dev, u16 vid)
+{
+ struct net_bridge_fdb_entry *f;
+ struct net_bridge_port *p;
+
+ ASSERT_RTNL();
+
+ p = br_port_get_rtnl(dev);
+ if (!p)
+ return;
+
+ spin_lock_bh(&p->br->hash_lock);
+ hlist_for_each_entry(f, &p->br->fdb_list, fdb_node) {
+ if (f->dst == p && f->key.vlan_id == vid)
+ f->offloaded = 0;
+ }
+ spin_unlock_bh(&p->br->hash_lock);
+}
+EXPORT_SYMBOL_GPL(br_fdb_clear_offload);