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net: bridge: mst: Notify switchdev drivers of VLAN MSTI migrations

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Whenever a VLAN moves to a new MSTI, send a switchdev notification so
that switchdevs can track a bridge's VID to MSTI mappings.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Tobias Waldekranz
2022-03-16 16:08:47 +01:00
committed by Jakub Kicinski
parent 87c167bb94
commit 6284c723d9
3 changed files with 66 additions and 0 deletions
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13
net/bridge/br_mst.c
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@@ -69,13 +69,26 @@ static void br_mst_vlan_sync_state(struct net_bridge_vlan *pv, u16 msti)
int br_mst_vlan_set_msti(struct net_bridge_vlan *mv, u16 msti)
{
struct switchdev_attr attr = {
.id = SWITCHDEV_ATTR_ID_VLAN_MSTI,
.orig_dev = mv->br->dev,
.u.vlan_msti = {
.vid = mv->vid,
.msti = msti,
},
};
struct net_bridge_vlan_group *vg;
struct net_bridge_vlan *pv;
struct net_bridge_port *p;
int err;
if (mv->msti == msti)
return 0;
err = switchdev_port_attr_set(mv->br->dev, &attr, NULL);
if (err && err != -EOPNOTSUPP)
return err;
mv->msti = msti;
list_for_each_entry(p, &mv->br->port_list, list) {