Add the usual trampoline functionality from the generic DSA layer down
to the drivers for MST state changes.
Signed-off-by: Tobias Waldekranz <tobias@xxxxxxxxxxxxxx>
---
include/net/dsa.h | 2 ++
net/dsa/dsa_priv.h | 2 ++
net/dsa/port.c | 30 ++++++++++++++++++++++++++++++
net/dsa/slave.c | 6 ++++++
4 files changed, 40 insertions(+)
diff --git a/include/net/dsa.h b/include/net/dsa.h
index 2aabe7f0b176..f030afb68f46 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -882,6 +882,8 @@ struct dsa_switch_ops {
struct dsa_bridge bridge);
void (*port_stp_state_set)(struct dsa_switch *ds, int port,
u8 state);
+ int (*port_mst_state_set)(struct dsa_switch *ds, int port,
+ const struct switchdev_mst_state *state);
void (*port_fast_age)(struct dsa_switch *ds, int port);
int (*port_pre_bridge_flags)(struct dsa_switch *ds, int port,
struct switchdev_brport_flags flags,
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 43709c005461..96d09184de5d 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -185,6 +185,8 @@ static inline struct net_device *dsa_master_find_slave(struct net_device *dev,
void dsa_port_set_tag_protocol(struct dsa_port *cpu_dp,
const struct dsa_device_ops *tag_ops);
int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age);
+int dsa_port_set_mst_state(struct dsa_port *dp,
+ const struct switchdev_mst_state *state);
int dsa_port_enable_rt(struct dsa_port *dp, struct phy_device *phy);
int dsa_port_enable(struct dsa_port *dp, struct phy_device *phy);
void dsa_port_disable_rt(struct dsa_port *dp);
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 4fb2bf2383d9..a34779658f17 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -108,6 +108,36 @@ int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age)
return 0;
}
+int dsa_port_set_mst_state(struct dsa_port *dp,
+ const struct switchdev_mst_state *state)
+{
+ struct dsa_switch *ds = dp->ds;
+ int err, port = dp->index;
+
+ if (!ds->ops->port_mst_state_set)
+ return -EOPNOTSUPP;
+
+ err = ds->ops->port_mst_state_set(ds, port, state);
+ if (err)
+ return err;
+
+ if (!dsa_port_can_configure_learning(dp) || dp->learning) {
+ switch (state->state) {
+ case BR_STATE_DISABLED:
+ case BR_STATE_BLOCKING:
+ case BR_STATE_LISTENING:
+ /* Ideally we would only fast age entries
+ * belonging to VLANs controlled by this
+ * MST.
+ */
+ dsa_port_fast_age(dp);
+ break;
+ }
+ }
+
+ return 0;
+}
+
static void dsa_port_set_state_now(struct dsa_port *dp, u8 state,
bool do_fast_age)
{
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 0a5e44105add..48075d697588 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -288,6 +288,12 @@ static int dsa_slave_port_attr_set(struct net_device *dev, const void *ctx,
ret = dsa_port_set_state(dp, attr->u.stp_state, true);
break;
+ case SWITCHDEV_ATTR_ID_PORT_MST_STATE:
+ if (!dsa_port_offloads_bridge_port(dp, attr->orig_dev))
+ return -EOPNOTSUPP;
+
+ ret = dsa_port_set_mst_state(dp, &attr->u.mst_state);
+ break;
case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev))
return -EOPNOTSUPP;
--
2.25.1
