net: dsa: move MDB handlers
[sfrench/cifs-2.6.git] / net / dsa / slave.c
index 7693182df81e61d14540cd43be3ae7e134eef576..9adcb8267d9ac494bb8d71c8f9d4d3b5fd808825 100644 (file)
 #include <linux/of_mdio.h>
 #include <linux/mdio.h>
 #include <linux/list.h>
-#include <net/dsa.h>
 #include <net/rtnetlink.h>
-#include <net/switchdev.h>
 #include <net/pkt_cls.h>
 #include <net/tc_act/tc_mirred.h>
 #include <linux/if_bridge.h>
 #include <linux/netpoll.h>
+
 #include "dsa_priv.h"
 
 static bool dsa_slave_dev_check(struct net_device *dev);
 
-static int dsa_slave_notify(struct net_device *dev, unsigned long e, void *v)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct raw_notifier_head *nh = &p->dp->ds->dst->nh;
-       int err;
-
-       err = raw_notifier_call_chain(nh, e, v);
-
-       return notifier_to_errno(err);
-}
-
 /* slave mii_bus handling ***************************************************/
 static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
 {
@@ -86,33 +74,6 @@ static inline bool dsa_port_is_bridged(struct dsa_port *dp)
        return !!dp->bridge_dev;
 }
 
-static void dsa_slave_set_state(struct net_device *dev, u8 state)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_port *dp = p->dp;
-       struct dsa_switch *ds = dp->ds;
-       int port = dp->index;
-
-       if (ds->ops->port_stp_state_set)
-               ds->ops->port_stp_state_set(ds, port, state);
-
-       if (ds->ops->port_fast_age) {
-               /* Fast age FDB entries or flush appropriate forwarding database
-                * for the given port, if we are moving it from Learning or
-                * Forwarding state, to Disabled or Blocking or Listening state.
-                */
-
-               if ((dp->stp_state == BR_STATE_LEARNING ||
-                    dp->stp_state == BR_STATE_FORWARDING) &&
-                   (state == BR_STATE_DISABLED ||
-                    state == BR_STATE_BLOCKING ||
-                    state == BR_STATE_LISTENING))
-                       ds->ops->port_fast_age(ds, port);
-       }
-
-       dp->stp_state = state;
-}
-
 static int dsa_slave_open(struct net_device *dev)
 {
        struct dsa_slave_priv *p = netdev_priv(dev);
@@ -148,7 +109,7 @@ static int dsa_slave_open(struct net_device *dev)
                        goto clear_promisc;
        }
 
-       dsa_slave_set_state(dev, stp_state);
+       dsa_port_set_state_now(p->dp, stp_state);
 
        if (p->phy)
                phy_start(p->phy);
@@ -190,7 +151,7 @@ static int dsa_slave_close(struct net_device *dev)
        if (ds->ops->port_disable)
                ds->ops->port_disable(ds, p->dp->index, p->phy);
 
-       dsa_slave_set_state(dev, BR_STATE_DISABLED);
+       dsa_port_set_state_now(p->dp, BR_STATE_DISABLED);
 
        return 0;
 }
@@ -243,12 +204,10 @@ out:
        return 0;
 }
 
-static int dsa_slave_port_vlan_add(struct net_device *dev,
-                                  const struct switchdev_obj_port_vlan *vlan,
-                                  struct switchdev_trans *trans)
+static int dsa_port_vlan_add(struct dsa_port *dp,
+                            const struct switchdev_obj_port_vlan *vlan,
+                            struct switchdev_trans *trans)
 {
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_port *dp = p->dp;
        struct dsa_switch *ds = dp->ds;
 
        if (switchdev_trans_ph_prepare(trans)) {
@@ -263,116 +222,25 @@ static int dsa_slave_port_vlan_add(struct net_device *dev,
        return 0;
 }
 
-static int dsa_slave_port_vlan_del(struct net_device *dev,
-                                  const struct switchdev_obj_port_vlan *vlan)
+static int dsa_port_vlan_del(struct dsa_port *dp,
+                            const struct switchdev_obj_port_vlan *vlan)
 {
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
+       struct dsa_switch *ds = dp->ds;
 
        if (!ds->ops->port_vlan_del)
                return -EOPNOTSUPP;
 
-       return ds->ops->port_vlan_del(ds, p->dp->index, vlan);
+       return ds->ops->port_vlan_del(ds, dp->index, vlan);
 }
 
-static int dsa_slave_port_vlan_dump(struct net_device *dev,
-                                   struct switchdev_obj_port_vlan *vlan,
-                                   switchdev_obj_dump_cb_t *cb)
+static int dsa_port_vlan_dump(struct dsa_port *dp,
+                             struct switchdev_obj_port_vlan *vlan,
+                             switchdev_obj_dump_cb_t *cb)
 {
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
+       struct dsa_switch *ds = dp->ds;
 
        if (ds->ops->port_vlan_dump)
-               return ds->ops->port_vlan_dump(ds, p->dp->index, vlan, cb);
-
-       return -EOPNOTSUPP;
-}
-
-static int dsa_slave_port_fdb_add(struct net_device *dev,
-                                 const struct switchdev_obj_port_fdb *fdb,
-                                 struct switchdev_trans *trans)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (switchdev_trans_ph_prepare(trans)) {
-               if (!ds->ops->port_fdb_prepare || !ds->ops->port_fdb_add)
-                       return -EOPNOTSUPP;
-
-               return ds->ops->port_fdb_prepare(ds, p->dp->index, fdb, trans);
-       }
-
-       ds->ops->port_fdb_add(ds, p->dp->index, fdb, trans);
-
-       return 0;
-}
-
-static int dsa_slave_port_fdb_del(struct net_device *dev,
-                                 const struct switchdev_obj_port_fdb *fdb)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-       int ret = -EOPNOTSUPP;
-
-       if (ds->ops->port_fdb_del)
-               ret = ds->ops->port_fdb_del(ds, p->dp->index, fdb);
-
-       return ret;
-}
-
-static int dsa_slave_port_fdb_dump(struct net_device *dev,
-                                  struct switchdev_obj_port_fdb *fdb,
-                                  switchdev_obj_dump_cb_t *cb)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (ds->ops->port_fdb_dump)
-               return ds->ops->port_fdb_dump(ds, p->dp->index, fdb, cb);
-
-       return -EOPNOTSUPP;
-}
-
-static int dsa_slave_port_mdb_add(struct net_device *dev,
-                                 const struct switchdev_obj_port_mdb *mdb,
-                                 struct switchdev_trans *trans)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (switchdev_trans_ph_prepare(trans)) {
-               if (!ds->ops->port_mdb_prepare || !ds->ops->port_mdb_add)
-                       return -EOPNOTSUPP;
-
-               return ds->ops->port_mdb_prepare(ds, p->dp->index, mdb, trans);
-       }
-
-       ds->ops->port_mdb_add(ds, p->dp->index, mdb, trans);
-
-       return 0;
-}
-
-static int dsa_slave_port_mdb_del(struct net_device *dev,
-                                 const struct switchdev_obj_port_mdb *mdb)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (ds->ops->port_mdb_del)
-               return ds->ops->port_mdb_del(ds, p->dp->index, mdb);
-
-       return -EOPNOTSUPP;
-}
-
-static int dsa_slave_port_mdb_dump(struct net_device *dev,
-                                  struct switchdev_obj_port_mdb *mdb,
-                                  switchdev_obj_dump_cb_t *cb)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (ds->ops->port_mdb_dump)
-               return ds->ops->port_mdb_dump(ds, p->dp->index, mdb, cb);
+               return ds->ops->port_vlan_dump(ds, dp->index, vlan, cb);
 
        return -EOPNOTSUPP;
 }
@@ -387,96 +255,24 @@ static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
        return -EOPNOTSUPP;
 }
 
-static int dsa_slave_stp_state_set(struct net_device *dev,
-                                  const struct switchdev_attr *attr,
-                                  struct switchdev_trans *trans)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       if (switchdev_trans_ph_prepare(trans))
-               return ds->ops->port_stp_state_set ? 0 : -EOPNOTSUPP;
-
-       dsa_slave_set_state(dev, attr->u.stp_state);
-
-       return 0;
-}
-
-static int dsa_slave_vlan_filtering(struct net_device *dev,
-                                   const struct switchdev_attr *attr,
-                                   struct switchdev_trans *trans)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-
-       /* bridge skips -EOPNOTSUPP, so skip the prepare phase */
-       if (switchdev_trans_ph_prepare(trans))
-               return 0;
-
-       if (ds->ops->port_vlan_filtering)
-               return ds->ops->port_vlan_filtering(ds, p->dp->index,
-                                                   attr->u.vlan_filtering);
-
-       return 0;
-}
-
-static unsigned int dsa_fastest_ageing_time(struct dsa_switch *ds,
-                                           unsigned int ageing_time)
-{
-       int i;
-
-       for (i = 0; i < ds->num_ports; ++i) {
-               struct dsa_port *dp = &ds->ports[i];
-
-               if (dp && dp->ageing_time && dp->ageing_time < ageing_time)
-                       ageing_time = dp->ageing_time;
-       }
-
-       return ageing_time;
-}
-
-static int dsa_slave_ageing_time(struct net_device *dev,
-                                const struct switchdev_attr *attr,
-                                struct switchdev_trans *trans)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_switch *ds = p->dp->ds;
-       unsigned long ageing_jiffies = clock_t_to_jiffies(attr->u.ageing_time);
-       unsigned int ageing_time = jiffies_to_msecs(ageing_jiffies);
-
-       if (switchdev_trans_ph_prepare(trans)) {
-               if (ds->ageing_time_min && ageing_time < ds->ageing_time_min)
-                       return -ERANGE;
-               if (ds->ageing_time_max && ageing_time > ds->ageing_time_max)
-                       return -ERANGE;
-               return 0;
-       }
-
-       /* Keep the fastest ageing time in case of multiple bridges */
-       p->dp->ageing_time = ageing_time;
-       ageing_time = dsa_fastest_ageing_time(ds, ageing_time);
-
-       if (ds->ops->set_ageing_time)
-               return ds->ops->set_ageing_time(ds, ageing_time);
-
-       return 0;
-}
-
 static int dsa_slave_port_attr_set(struct net_device *dev,
                                   const struct switchdev_attr *attr,
                                   struct switchdev_trans *trans)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct dsa_port *dp = p->dp;
        int ret;
 
        switch (attr->id) {
        case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
-               ret = dsa_slave_stp_state_set(dev, attr, trans);
+               ret = dsa_port_set_state(dp, attr->u.stp_state, trans);
                break;
        case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING:
-               ret = dsa_slave_vlan_filtering(dev, attr, trans);
+               ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering,
+                                             trans);
                break;
        case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
-               ret = dsa_slave_ageing_time(dev, attr, trans);
+               ret = dsa_port_ageing_time(dp, attr->u.ageing_time, trans);
                break;
        default:
                ret = -EOPNOTSUPP;
@@ -490,6 +286,8 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
                                  const struct switchdev_obj *obj,
                                  struct switchdev_trans *trans)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct dsa_port *dp = p->dp;
        int err;
 
        /* For the prepare phase, ensure the full set of changes is feasable in
@@ -499,18 +297,14 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
 
        switch (obj->id) {
        case SWITCHDEV_OBJ_ID_PORT_FDB:
-               err = dsa_slave_port_fdb_add(dev,
-                                            SWITCHDEV_OBJ_PORT_FDB(obj),
-                                            trans);
+               err = dsa_port_fdb_add(dp, SWITCHDEV_OBJ_PORT_FDB(obj), trans);
                break;
        case SWITCHDEV_OBJ_ID_PORT_MDB:
-               err = dsa_slave_port_mdb_add(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
-                                            trans);
+               err = dsa_port_mdb_add(dp, SWITCHDEV_OBJ_PORT_MDB(obj), trans);
                break;
        case SWITCHDEV_OBJ_ID_PORT_VLAN:
-               err = dsa_slave_port_vlan_add(dev,
-                                             SWITCHDEV_OBJ_PORT_VLAN(obj),
-                                             trans);
+               err = dsa_port_vlan_add(dp, SWITCHDEV_OBJ_PORT_VLAN(obj),
+                                       trans);
                break;
        default:
                err = -EOPNOTSUPP;
@@ -523,19 +317,19 @@ static int dsa_slave_port_obj_add(struct net_device *dev,
 static int dsa_slave_port_obj_del(struct net_device *dev,
                                  const struct switchdev_obj *obj)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct dsa_port *dp = p->dp;
        int err;
 
        switch (obj->id) {
        case SWITCHDEV_OBJ_ID_PORT_FDB:
-               err = dsa_slave_port_fdb_del(dev,
-                                            SWITCHDEV_OBJ_PORT_FDB(obj));
+               err = dsa_port_fdb_del(dp, SWITCHDEV_OBJ_PORT_FDB(obj));
                break;
        case SWITCHDEV_OBJ_ID_PORT_MDB:
-               err = dsa_slave_port_mdb_del(dev, SWITCHDEV_OBJ_PORT_MDB(obj));
+               err = dsa_port_mdb_del(dp, SWITCHDEV_OBJ_PORT_MDB(obj));
                break;
        case SWITCHDEV_OBJ_ID_PORT_VLAN:
-               err = dsa_slave_port_vlan_del(dev,
-                                             SWITCHDEV_OBJ_PORT_VLAN(obj));
+               err = dsa_port_vlan_del(dp, SWITCHDEV_OBJ_PORT_VLAN(obj));
                break;
        default:
                err = -EOPNOTSUPP;
@@ -549,22 +343,19 @@ static int dsa_slave_port_obj_dump(struct net_device *dev,
                                   struct switchdev_obj *obj,
                                   switchdev_obj_dump_cb_t *cb)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct dsa_port *dp = p->dp;
        int err;
 
        switch (obj->id) {
        case SWITCHDEV_OBJ_ID_PORT_FDB:
-               err = dsa_slave_port_fdb_dump(dev,
-                                             SWITCHDEV_OBJ_PORT_FDB(obj),
-                                             cb);
+               err = dsa_port_fdb_dump(dp, SWITCHDEV_OBJ_PORT_FDB(obj), cb);
                break;
        case SWITCHDEV_OBJ_ID_PORT_MDB:
-               err = dsa_slave_port_mdb_dump(dev, SWITCHDEV_OBJ_PORT_MDB(obj),
-                                             cb);
+               err = dsa_port_mdb_dump(dp, SWITCHDEV_OBJ_PORT_MDB(obj), cb);
                break;
        case SWITCHDEV_OBJ_ID_PORT_VLAN:
-               err = dsa_slave_port_vlan_dump(dev,
-                                              SWITCHDEV_OBJ_PORT_VLAN(obj),
-                                              cb);
+               err = dsa_port_vlan_dump(dp, SWITCHDEV_OBJ_PORT_VLAN(obj), cb);
                break;
        default:
                err = -EOPNOTSUPP;
@@ -574,57 +365,6 @@ static int dsa_slave_port_obj_dump(struct net_device *dev,
        return err;
 }
 
-static int dsa_slave_bridge_port_join(struct net_device *dev,
-                                     struct net_device *br)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_notifier_bridge_info info = {
-               .sw_index = p->dp->ds->index,
-               .port = p->dp->index,
-               .br = br,
-       };
-       int err;
-
-       /* Here the port is already bridged. Reflect the current configuration
-        * so that drivers can program their chips accordingly.
-        */
-       p->dp->bridge_dev = br;
-
-       err = dsa_slave_notify(dev, DSA_NOTIFIER_BRIDGE_JOIN, &info);
-
-       /* The bridging is rolled back on error */
-       if (err)
-               p->dp->bridge_dev = NULL;
-
-       return err;
-}
-
-static void dsa_slave_bridge_port_leave(struct net_device *dev,
-                                       struct net_device *br)
-{
-       struct dsa_slave_priv *p = netdev_priv(dev);
-       struct dsa_notifier_bridge_info info = {
-               .sw_index = p->dp->ds->index,
-               .port = p->dp->index,
-               .br = br,
-       };
-       int err;
-
-       /* Here the port is already unbridged. Reflect the current configuration
-        * so that drivers can program their chips accordingly.
-        */
-       p->dp->bridge_dev = NULL;
-
-       err = dsa_slave_notify(dev, DSA_NOTIFIER_BRIDGE_LEAVE, &info);
-       if (err)
-               netdev_err(dev, "failed to notify DSA_NOTIFIER_BRIDGE_LEAVE\n");
-
-       /* Port left the bridge, put in BR_STATE_DISABLED by the bridge layer,
-        * so allow it to be in BR_STATE_FORWARDING to be kept functional
-        */
-       dsa_slave_set_state(dev, BR_STATE_FORWARDING);
-}
-
 static int dsa_slave_port_attr_get(struct net_device *dev,
                                   struct switchdev_attr *attr)
 {
@@ -821,8 +561,8 @@ static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
                                           uint64_t *data)
 {
        struct dsa_switch_tree *dst = dev->dsa_ptr;
-       struct dsa_switch *ds = dst->cpu_switch;
-       s8 cpu_port = dst->cpu_port;
+       struct dsa_switch *ds = dst->cpu_dp->ds;
+       s8 cpu_port = dst->cpu_dp->index;
        int count = 0;
 
        if (dst->master_ethtool_ops.get_sset_count) {
@@ -838,7 +578,7 @@ static void dsa_cpu_port_get_ethtool_stats(struct net_device *dev,
 static int dsa_cpu_port_get_sset_count(struct net_device *dev, int sset)
 {
        struct dsa_switch_tree *dst = dev->dsa_ptr;
-       struct dsa_switch *ds = dst->cpu_switch;
+       struct dsa_switch *ds = dst->cpu_dp->ds;
        int count = 0;
 
        if (dst->master_ethtool_ops.get_sset_count)
@@ -854,8 +594,8 @@ static void dsa_cpu_port_get_strings(struct net_device *dev,
                                     uint32_t stringset, uint8_t *data)
 {
        struct dsa_switch_tree *dst = dev->dsa_ptr;
-       struct dsa_switch *ds = dst->cpu_switch;
-       s8 cpu_port = dst->cpu_port;
+       struct dsa_switch *ds = dst->cpu_dp->ds;
+       s8 cpu_port = dst->cpu_dp->index;
        int len = ETH_GSTRING_LEN;
        int mcount = 0, count;
        unsigned int i;
@@ -1528,14 +1268,16 @@ static bool dsa_slave_dev_check(struct net_device *dev)
 static int dsa_slave_changeupper(struct net_device *dev,
                                 struct netdev_notifier_changeupper_info *info)
 {
+       struct dsa_slave_priv *p = netdev_priv(dev);
+       struct dsa_port *dp = p->dp;
        int err = NOTIFY_DONE;
 
        if (netif_is_bridge_master(info->upper_dev)) {
                if (info->linking) {
-                       err = dsa_slave_bridge_port_join(dev, info->upper_dev);
+                       err = dsa_port_bridge_join(dp, info->upper_dev);
                        err = notifier_from_errno(err);
                } else {
-                       dsa_slave_bridge_port_leave(dev, info->upper_dev);
+                       dsa_port_bridge_leave(dp, info->upper_dev);
                        err = NOTIFY_OK;
                }
        }