diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-02-03 01:31:09 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-02-03 18:25:49 -0800 |
| commit | 99b8202b179fc3dbbca69e8af6da660224c9d676 (patch) | |
| tree | 08b9eaa619d38f240091ebeca76f2f6c68a4d5de /net/dsa | |
| parent | 75b8f78fb91fd7bbd730f2a5795f1f926b3bf0b2 (diff) | |
| download | linux-99b8202b179fc3dbbca69e8af6da660224c9d676.tar.gz | |
net: dsa: fix SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING getting ignored
The bridge emits VLAN filtering events and quite a few others via
switchdev with orig_dev = br->dev. After the blamed commit, these events
started getting ignored.
The point of the patch was to not offload switchdev objects for ports
that didn't go through dsa_port_bridge_join, because the configuration
is unsupported:
- ports that offload a bonding/team interface go through
dsa_port_bridge_join when that bonding/team interface is later bridged
with another switch port or LAG
- ports that don't offload LAG don't get notified of the bridge that is
on top of that LAG.
Sadly, a check is missing, which is that the orig_dev is equal to the
bridge device. This check is compatible with the original intention,
because ports that don't offload bridging because they use a software
LAG don't have dp->bridge_dev set.
On a semi-related note, we should not offload switchdev objects or
populate dp->bridge_dev if the driver doesn't implement .port_bridge_join
either. However there is no regression associated with that, so it can
be done separately.
Fixes: 5696c8aedfcc ("net: dsa: Don't offload port attributes on standalone ports")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Tobias Waldekranz <tobias@waldekranz.com>
Tested-by: Tobias Waldekranz <tobias@waldekranz.com>
Link: https://lore.kernel.org/r/20210202233109.1591466-1-olteanv@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/dsa_priv.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h index edca57b558ad..263593ce94a8 100644 --- a/net/dsa/dsa_priv.h +++ b/net/dsa/dsa_priv.h @@ -191,7 +191,15 @@ static inline bool dsa_port_offloads_netdev(struct dsa_port *dp, /* Switchdev offloading can be configured on: */ if (dev == dp->slave) - /* DSA ports directly connected to a bridge. */ + /* DSA ports directly connected to a bridge, and event + * was emitted for the ports themselves. + */ + return true; + + if (dp->bridge_dev == dev) + /* DSA ports connected to a bridge, and event was emitted + * for the bridge. + */ return true; if (dp->lag_dev == dev) |