From: Vladimir Oltean <vladimir.olt...@nxp.com>

The ocelot switch has been supporting LAG offload since its initial
commit, however felix could not make use of that, due to lack of a LAG
abstraction in DSA. Now that we have that, let's forward DSA's calls
towards the ocelot library, who will deal with setting up the bonding.

Note that ocelot_port_lag_leave can return an error due to memory
allocation but we are currently ignoring that, because the DSA method
returns void.

Signed-off-by: Vladimir Oltean <vladimir.olt...@nxp.com>
---
Changes in v2:
s/lag_dev/bond/g

 drivers/net/dsa/ocelot/felix.c     | 28 ++++++++++++++++++++++++++++
 drivers/net/ethernet/mscc/ocelot.c |  1 +
 drivers/net/ethernet/mscc/ocelot.h |  6 ------
 include/soc/mscc/ocelot.h          |  6 ++++++
 4 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/ocelot/felix.c b/drivers/net/dsa/ocelot/felix.c
index 2c6ac2b137ec..af867535f9eb 100644
--- a/drivers/net/dsa/ocelot/felix.c
+++ b/drivers/net/dsa/ocelot/felix.c
@@ -105,6 +105,31 @@ static void felix_bridge_leave(struct dsa_switch *ds, int 
port,
        ocelot_port_bridge_leave(ocelot, port, br);
 }
 
+static int felix_lag_join(struct dsa_switch *ds, int port,
+                         struct net_device *bond,
+                         struct netdev_lag_upper_info *info)
+{
+       struct ocelot *ocelot = ds->priv;
+
+       return ocelot_port_lag_join(ocelot, port, bond, info);
+}
+
+static int felix_lag_leave(struct dsa_switch *ds, int port,
+                          struct net_device *bond)
+{
+       struct ocelot *ocelot = ds->priv;
+
+       return ocelot_port_lag_leave(ocelot, port, bond);
+}
+
+static int felix_lag_change(struct dsa_switch *ds, int port)
+{
+       struct dsa_port *dp = dsa_to_port(ds, port);
+       struct ocelot *ocelot = ds->priv;
+
+       return ocelot_port_lag_change(ocelot, port, dp->lag_tx_enabled);
+}
+
 static int felix_vlan_prepare(struct dsa_switch *ds, int port,
                              const struct switchdev_obj_port_vlan *vlan)
 {
@@ -881,6 +906,9 @@ const struct dsa_switch_ops felix_switch_ops = {
        .port_mdb_del                   = felix_mdb_del,
        .port_bridge_join               = felix_bridge_join,
        .port_bridge_leave              = felix_bridge_leave,
+       .port_lag_join                  = felix_lag_join,
+       .port_lag_leave                 = felix_lag_leave,
+       .port_lag_change                = felix_lag_change,
        .port_stp_state_set             = felix_bridge_stp_state_set,
        .port_vlan_filtering            = felix_vlan_filtering,
        .port_vlan_add                  = felix_vlan_add,
diff --git a/drivers/net/ethernet/mscc/ocelot.c 
b/drivers/net/ethernet/mscc/ocelot.c
index c31a63d9fe2a..b2fdee8a713c 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1361,6 +1361,7 @@ int ocelot_port_lag_change(struct ocelot *ocelot, int 
port, bool lag_tx_active)
        /* Rebalance the LAGs */
        return ocelot_set_aggr_pgids(ocelot);
 }
+EXPORT_SYMBOL(ocelot_port_lag_change);
 
 /* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu.
  * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG.
diff --git a/drivers/net/ethernet/mscc/ocelot.h 
b/drivers/net/ethernet/mscc/ocelot.h
index fc055525fd88..e3352ae7b11f 100644
--- a/drivers/net/ethernet/mscc/ocelot.h
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -109,12 +109,6 @@ int ocelot_mact_learn(struct ocelot *ocelot, int port,
                      unsigned int vid, enum macaccess_entry_type type);
 int ocelot_mact_forget(struct ocelot *ocelot,
                       const unsigned char mac[ETH_ALEN], unsigned int vid);
-int ocelot_port_lag_join(struct ocelot *ocelot, int port,
-                        struct net_device *bond,
-                        struct netdev_lag_upper_info *info);
-int ocelot_port_lag_leave(struct ocelot *ocelot, int port,
-                         struct net_device *bond);
-int ocelot_port_lag_change(struct ocelot *ocelot, int port, bool 
lag_tx_active);
 struct net_device *ocelot_port_to_netdev(struct ocelot *ocelot, int port);
 int ocelot_netdev_to_port(struct net_device *dev);
 
diff --git a/include/soc/mscc/ocelot.h b/include/soc/mscc/ocelot.h
index 7bd7c58a7490..d9b5d31bb181 100644
--- a/include/soc/mscc/ocelot.h
+++ b/include/soc/mscc/ocelot.h
@@ -796,6 +796,12 @@ int ocelot_port_mdb_add(struct ocelot *ocelot, int port,
                        const struct switchdev_obj_port_mdb *mdb);
 int ocelot_port_mdb_del(struct ocelot *ocelot, int port,
                        const struct switchdev_obj_port_mdb *mdb);
+int ocelot_port_lag_join(struct ocelot *ocelot, int port,
+                        struct net_device *bond,
+                        struct netdev_lag_upper_info *info);
+int ocelot_port_lag_leave(struct ocelot *ocelot, int port,
+                         struct net_device *bond);
+int ocelot_port_lag_change(struct ocelot *ocelot, int port, bool 
lag_tx_active);
 
 int ocelot_devlink_sb_register(struct ocelot *ocelot);
 void ocelot_devlink_sb_unregister(struct ocelot *ocelot);
-- 
2.25.1

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