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Diffstat (limited to 'net/dsa/slave.c')
-rw-r--r--net/dsa/slave.c112
1 files changed, 64 insertions, 48 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2f6caf5d037ee..f61e6b72ffbbb 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -348,9 +348,8 @@ static int dsa_slave_vlan_add(struct net_device *dev,
const struct switchdev_obj *obj,
struct netlink_ext_ack *extack)
{
- struct net_device *master = dsa_slave_to_master(dev);
struct dsa_port *dp = dsa_slave_to_port(dev);
- struct switchdev_obj_port_vlan vlan;
+ struct switchdev_obj_port_vlan *vlan;
int err;
if (dsa_port_skip_vlan_configuration(dp)) {
@@ -358,14 +357,14 @@ static int dsa_slave_vlan_add(struct net_device *dev,
return 0;
}
- vlan = *SWITCHDEV_OBJ_PORT_VLAN(obj);
+ vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
/* Deny adding a bridge VLAN when there is already an 802.1Q upper with
* the same VID.
*/
if (br_vlan_enabled(dsa_port_bridge_dev_get(dp))) {
rcu_read_lock();
- err = dsa_slave_vlan_check_for_8021q_uppers(dev, &vlan);
+ err = dsa_slave_vlan_check_for_8021q_uppers(dev, vlan);
rcu_read_unlock();
if (err) {
NL_SET_ERR_MSG_MOD(extack,
@@ -374,21 +373,36 @@ static int dsa_slave_vlan_add(struct net_device *dev,
}
}
- err = dsa_port_vlan_add(dp, &vlan, extack);
- if (err)
- return err;
+ return dsa_port_vlan_add(dp, vlan, extack);
+}
+
+/* Offload a VLAN installed on the bridge or on a foreign interface by
+ * installing it as a VLAN towards the CPU port.
+ */
+static int dsa_slave_host_vlan_add(struct net_device *dev,
+ const struct switchdev_obj *obj,
+ struct netlink_ext_ack *extack)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+ struct switchdev_obj_port_vlan vlan;
+
+ /* Do nothing if this is a software bridge */
+ if (!dp->bridge)
+ return -EOPNOTSUPP;
+
+ if (dsa_port_skip_vlan_configuration(dp)) {
+ NL_SET_ERR_MSG_MOD(extack, "skipping configuration of VLAN");
+ return 0;
+ }
- /* We need the dedicated CPU port to be a member of the VLAN as well.
- * Even though drivers often handle CPU membership in special ways,
+ vlan = *SWITCHDEV_OBJ_PORT_VLAN(obj);
+
+ /* Even though drivers often handle CPU membership in special ways,
* it doesn't make sense to program a PVID, so clear this flag.
*/
vlan.flags &= ~BRIDGE_VLAN_INFO_PVID;
- err = dsa_port_vlan_add(dp->cpu_dp, &vlan, extack);
- if (err)
- return err;
-
- return vlan_vid_add(master, htons(ETH_P_8021Q), vlan.vid);
+ return dsa_port_host_vlan_add(dp, &vlan, extack);
}
static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx,
@@ -415,10 +429,10 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx,
err = dsa_port_host_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
- if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
- return -EOPNOTSUPP;
-
- err = dsa_slave_vlan_add(dev, obj, extack);
+ if (dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ err = dsa_slave_vlan_add(dev, obj, extack);
+ else
+ err = dsa_slave_host_vlan_add(dev, obj, extack);
break;
case SWITCHDEV_OBJ_ID_MRP:
if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
@@ -444,26 +458,33 @@ static int dsa_slave_port_obj_add(struct net_device *dev, const void *ctx,
static int dsa_slave_vlan_del(struct net_device *dev,
const struct switchdev_obj *obj)
{
- struct net_device *master = dsa_slave_to_master(dev);
struct dsa_port *dp = dsa_slave_to_port(dev);
struct switchdev_obj_port_vlan *vlan;
- int err;
if (dsa_port_skip_vlan_configuration(dp))
return 0;
vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
- /* Do not deprogram the CPU port as it may be shared with other user
- * ports which can be members of this VLAN as well.
- */
- err = dsa_port_vlan_del(dp, vlan);
- if (err)
- return err;
+ return dsa_port_vlan_del(dp, vlan);
+}
- vlan_vid_del(master, htons(ETH_P_8021Q), vlan->vid);
+static int dsa_slave_host_vlan_del(struct net_device *dev,
+ const struct switchdev_obj *obj)
+{
+ struct dsa_port *dp = dsa_slave_to_port(dev);
+ struct switchdev_obj_port_vlan *vlan;
- return 0;
+ /* Do nothing if this is a software bridge */
+ if (!dp->bridge)
+ return -EOPNOTSUPP;
+
+ if (dsa_port_skip_vlan_configuration(dp))
+ return 0;
+
+ vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
+
+ return dsa_port_host_vlan_del(dp, vlan);
}
static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx,
@@ -489,10 +510,10 @@ static int dsa_slave_port_obj_del(struct net_device *dev, const void *ctx,
err = dsa_port_host_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
break;
case SWITCHDEV_OBJ_ID_PORT_VLAN:
- if (!dsa_port_offloads_bridge_port(dp, obj->orig_dev))
- return -EOPNOTSUPP;
-
- err = dsa_slave_vlan_del(dev, obj);
+ if (dsa_port_offloads_bridge_port(dp, obj->orig_dev))
+ err = dsa_slave_vlan_del(dev, obj);
+ else
+ err = dsa_slave_host_vlan_del(dev, obj);
break;
case SWITCHDEV_OBJ_ID_MRP:
if (!dsa_port_offloads_bridge_dev(dp, obj->orig_dev))
@@ -1347,7 +1368,6 @@ static int dsa_slave_get_ts_info(struct net_device *dev,
static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
u16 vid)
{
- struct net_device *master = dsa_slave_to_master(dev);
struct dsa_port *dp = dsa_slave_to_port(dev);
struct switchdev_obj_port_vlan vlan = {
.obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN,
@@ -1367,7 +1387,7 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
}
/* And CPU port... */
- ret = dsa_port_vlan_add(dp->cpu_dp, &vlan, &extack);
+ ret = dsa_port_host_vlan_add(dp, &vlan, &extack);
if (ret) {
if (extack._msg)
netdev_err(dev, "CPU port %d: %s\n", dp->cpu_dp->index,
@@ -1375,13 +1395,12 @@ static int dsa_slave_vlan_rx_add_vid(struct net_device *dev, __be16 proto,
return ret;
}
- return vlan_vid_add(master, proto, vid);
+ return 0;
}
static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
u16 vid)
{
- struct net_device *master = dsa_slave_to_master(dev);
struct dsa_port *dp = dsa_slave_to_port(dev);
struct switchdev_obj_port_vlan vlan = {
.vid = vid,
@@ -1390,16 +1409,11 @@ static int dsa_slave_vlan_rx_kill_vid(struct net_device *dev, __be16 proto,
};
int err;
- /* Do not deprogram the CPU port as it may be shared with other user
- * ports which can be members of this VLAN as well.
- */
err = dsa_port_vlan_del(dp, &vlan);
if (err)
return err;
- vlan_vid_del(master, proto, vid);
-
- return 0;
+ return dsa_port_host_vlan_del(dp, &vlan);
}
static int dsa_slave_restore_vlan(struct net_device *vdev, int vid, void *arg)
@@ -2530,14 +2544,16 @@ static int dsa_slave_switchdev_blocking_event(struct notifier_block *unused,
switch (event) {
case SWITCHDEV_PORT_OBJ_ADD:
- err = switchdev_handle_port_obj_add(dev, ptr,
- dsa_slave_dev_check,
- dsa_slave_port_obj_add);
+ err = switchdev_handle_port_obj_add_foreign(dev, ptr,
+ dsa_slave_dev_check,
+ dsa_foreign_dev_check,
+ dsa_slave_port_obj_add);
return notifier_from_errno(err);
case SWITCHDEV_PORT_OBJ_DEL:
- err = switchdev_handle_port_obj_del(dev, ptr,
- dsa_slave_dev_check,
- dsa_slave_port_obj_del);
+ err = switchdev_handle_port_obj_del_foreign(dev, ptr,
+ dsa_slave_dev_check,
+ dsa_foreign_dev_check,
+ dsa_slave_port_obj_del);
return notifier_from_errno(err);
case SWITCHDEV_PORT_ATTR_SET:
err = switchdev_handle_port_attr_set(dev, ptr,
generated by cgit v1.2.3 (git 2.39.1) at 2025-08-07 17:13:12 +0000