diff options
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx.c')
-rw-r--r-- | drivers/net/dsa/mv88e6xxx.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c index 04cff58..b06dba0 100644 --- a/drivers/net/dsa/mv88e6xxx.c +++ b/drivers/net/dsa/mv88e6xxx.c @@ -1462,6 +1462,10 @@ int mv88e6xxx_port_vlan_prepare(struct dsa_switch *ds, int port, const struct switchdev_obj_port_vlan *vlan, struct switchdev_trans *trans) { + /* We reserve a few VLANs to isolate unbridged ports */ + if (vlan->vid_end >= 4000) + return -EOPNOTSUPP; + /* We don't need any dynamic resource from the kernel (yet), * so skip the prepare phase. */ @@ -1870,6 +1874,36 @@ unlock: return err; } +int mv88e6xxx_port_bridge_join(struct dsa_switch *ds, int port, u32 members) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + const u16 pvid = 4000 + ds->index * DSA_MAX_PORTS + port; + int err; + + /* The port joined a bridge, so leave its reserved VLAN */ + mutex_lock(&ps->smi_mutex); + err = _mv88e6xxx_port_vlan_del(ds, port, pvid); + if (!err) + err = _mv88e6xxx_port_pvid_set(ds, port, 0); + mutex_unlock(&ps->smi_mutex); + return err; +} + +int mv88e6xxx_port_bridge_leave(struct dsa_switch *ds, int port, u32 members) +{ + struct mv88e6xxx_priv_state *ps = ds_to_priv(ds); + const u16 pvid = 4000 + ds->index * DSA_MAX_PORTS + port; + int err; + + /* The port left the bridge, so join its reserved VLAN */ + mutex_lock(&ps->smi_mutex); + err = _mv88e6xxx_port_vlan_add(ds, port, pvid, true); + if (!err) + err = _mv88e6xxx_port_pvid_set(ds, port, pvid); + mutex_unlock(&ps->smi_mutex); + return err; +} + static void mv88e6xxx_bridge_work(struct work_struct *work) { struct mv88e6xxx_priv_state *ps; @@ -2140,6 +2174,14 @@ int mv88e6xxx_setup_ports(struct dsa_switch *ds) ret = mv88e6xxx_setup_port(ds, i); if (ret < 0) return ret; + + if (dsa_is_cpu_port(ds, i) || dsa_is_dsa_port(ds, i)) + continue; + + /* setup the unbridged state */ + ret = mv88e6xxx_port_bridge_leave(ds, i, 0); + if (ret < 0) + return ret; } return 0; } |