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| author | Ido Schimmel <idosch@mellanox.com> | 2019-01-18 18:58:00 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-27 12:08:57 +0300 |
| commit | 4799417bb6411fe9a8a2f8f53b6786131ca97f43 (patch) | |
| tree | e81fb11665f7404430cc26bb8ee1c12d19791fdb /net | |
| parent | d7ac3d3135ff793d442e92030d89dee0f2e12303 (diff) | |
| download | linux-4799417bb6411fe9a8a2f8f53b6786131ca97f43.tar.xz | |
net: bridge: Mark FDB entries that were added by user as such
[ Upstream commit 710ae72877378e7cde611efd30fe90502a6e5b30 ]
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: 816a3bed9549 ("switchdev: Add fdb.added_by_user to switchdev notifications")
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reported-by: Alexander Petrovskiy <alexpe@mellanox.com>
Reviewed-by: Petr 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: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bridge/br_fdb.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index 502f66349530..4d4b9b5ea1c1 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -1088,6 +1088,8 @@ 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 { @@ -1107,6 +1109,9 @@ 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); } |