Commit 0b248b71 authored by Ido Schimmel's avatar Ido Schimmel Committed by Greg Kroah-Hartman

net: bridge: Mark FDB entries that were added by user as such

[ Upstream commit 710ae728 ]

Externally learned entries can be added by a user or by a switch driver
that is notifying the bridge driver about entries that were learned in
hardware.

In the first case, the entries are not marked with the 'added_by_user'
flag, which causes switch drivers to ignore them and not offload them.

The 'added_by_user' flag can be set on externally learned FDB entries
based on the 'swdev_notify' parameter in br_fdb_external_learn_add(),
which effectively means if the created / updated FDB entry was added by
a user or not.

Fixes: 816a3bed ("switchdev: Add fdb.added_by_user to switchdev notifications")
Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Reported-by: default avatarAlexander Petrovskiy <alexpe@mellanox.com>
Reviewed-by: default avatarPetr Machata <petrm@mellanox.com>
Cc: Roopa Prabhu <roopa@cumulusnetworks.com>
Cc: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Cc: bridge@lists.linux-foundation.org
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent cb07fe31
......@@ -1102,6 +1102,8 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
err = -ENOMEM;
goto err_unlock;
}
if (swdev_notify)
fdb->added_by_user = 1;
fdb->added_by_external_learn = 1;
fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);
} else {
......@@ -1121,6 +1123,9 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
modified = true;
}
if (swdev_notify)
fdb->added_by_user = 1;
if (modified)
fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);
}
......
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