diff options
| author | Tobias Waldekranz <tobias@waldekranz.com> | 2022-03-16 16:08:46 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-03-17 16:49:57 -0700 |
| commit | 87c167bb94ee3fd49569d4aa2038b9b8840d906f (patch) | |
| tree | f492b6a5f6b63cff7c66b52cd3ceaf69ba8d5022 /net/bridge/br_mst.c | |
| parent | 122c29486e1ff78033c45d0d31c710e7dc8945a5 (diff) | |
| download | linux-87c167bb94ee3fd49569d4aa2038b9b8840d906f.tar.bz2 | |
net: bridge: mst: Notify switchdev drivers of MST mode changes
Trigger a switchdev event whenever the bridge's MST mode is
enabled/disabled. This allows constituent ports to either perform any
required hardware config, or refuse the change if it not supported.
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/bridge/br_mst.c')
| -rw-r--r-- | net/bridge/br_mst.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/bridge/br_mst.c b/net/bridge/br_mst.c index 5c1831c73fc2..43ca6b97c5c3 100644 --- a/net/bridge/br_mst.c +++ b/net/bridge/br_mst.c @@ -7,6 +7,7 @@ */ #include <linux/kernel.h> +#include <net/switchdev.h> #include "br_private.h" @@ -102,8 +103,14 @@ void br_mst_vlan_init_state(struct net_bridge_vlan *v) int br_mst_set_enabled(struct net_bridge *br, bool on, struct netlink_ext_ack *extack) { + struct switchdev_attr attr = { + .id = SWITCHDEV_ATTR_ID_BRIDGE_MST, + .orig_dev = br->dev, + .u.mst = on, + }; struct net_bridge_vlan_group *vg; struct net_bridge_port *p; + int err; list_for_each_entry(p, &br->port_list, list) { vg = nbp_vlan_group(p); @@ -119,6 +126,10 @@ int br_mst_set_enabled(struct net_bridge *br, bool on, if (br_opt_get(br, BROPT_MST_ENABLED) == on) return 0; + err = switchdev_port_attr_set(br->dev, &attr, extack); + if (err && err != -EOPNOTSUPP) + return err; + if (on) static_branch_enable(&br_mst_used); else |