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 | |
| parent | net: bridge: mst: Support setting and reporting MST port states (diff) | |
| download | wireguard-linux-87c167bb94ee3fd49569d4aa2038b9b8840d906f.tar.xz wireguard-linux-87c167bb94ee3fd49569d4aa2038b9b8840d906f.zip | |
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>
| -rw-r--r-- | include/net/switchdev.h | 2 | ||||
| -rw-r--r-- | net/bridge/br_mst.c | 11 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/net/switchdev.h b/include/net/switchdev.h index 3e424d40fae3..85dd004dc9ad 100644 --- a/include/net/switchdev.h +++ b/include/net/switchdev.h @@ -27,6 +27,7 @@ enum switchdev_attr_id { SWITCHDEV_ATTR_ID_BRIDGE_VLAN_PROTOCOL, SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED, SWITCHDEV_ATTR_ID_BRIDGE_MROUTER, + SWITCHDEV_ATTR_ID_BRIDGE_MST, SWITCHDEV_ATTR_ID_MRP_PORT_ROLE, }; @@ -48,6 +49,7 @@ struct switchdev_attr { clock_t ageing_time; /* BRIDGE_AGEING_TIME */ bool vlan_filtering; /* BRIDGE_VLAN_FILTERING */ u16 vlan_protocol; /* BRIDGE_VLAN_PROTOCOL */ + bool mst; /* BRIDGE_MST */ bool mc_disabled; /* MC_DISABLED */ u8 mrp_port_role; /* MRP_PORT_ROLE */ } u; 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 |