mlxsw: spectrum: Register CPU port with devlink

Register CPU port with devlink.
Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlxsw/core.c

@@ -1864,11 +1864,12 @@ u64 mlxsw_core_res_get(struct mlxsw_core *mlxsw_core,
 }
 EXPORT_SYMBOL(mlxsw_core_res_get);
 
-int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
-			 u32 port_number, bool split,
-			 u32 split_port_subnumber,
-			 const unsigned char *switch_id,
-			 unsigned char switch_id_len)
+static int __mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
+				  enum devlink_port_flavour flavour,
+				  u32 port_number, bool split,
+				  u32 split_port_subnumber,
+				  const unsigned char *switch_id,
+				  unsigned char switch_id_len)
 {
 	struct devlink *devlink = priv_to_devlink(mlxsw_core);
 	struct mlxsw_core_port *mlxsw_core_port =
@@ -1877,17 +1878,16 @@ int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
 	int err;
 
 	mlxsw_core_port->local_port = local_port;
-	devlink_port_attrs_set(devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL,
-			       port_number, split, split_port_subnumber,
+	devlink_port_attrs_set(devlink_port, flavour, port_number,
+			       split, split_port_subnumber,
 			       switch_id, switch_id_len);
 	err = devlink_port_register(devlink, devlink_port, local_port);
 	if (err)
 		memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
 	return err;
 }
-EXPORT_SYMBOL(mlxsw_core_port_init);
 
-void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
+static void __mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
 {
 	struct mlxsw_core_port *mlxsw_core_port =
 					&mlxsw_core->ports[local_port];
@@ -1896,8 +1896,53 @@ void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
 	devlink_port_unregister(devlink_port);
 	memset(mlxsw_core_port, 0, sizeof(*mlxsw_core_port));
 }
+
+int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
+			 u32 port_number, bool split,
+			 u32 split_port_subnumber,
+			 const unsigned char *switch_id,
+			 unsigned char switch_id_len)
+{
+	return __mlxsw_core_port_init(mlxsw_core, local_port,
+				      DEVLINK_PORT_FLAVOUR_PHYSICAL,
+				      port_number, split, split_port_subnumber,
+				      switch_id, switch_id_len);
+}
+EXPORT_SYMBOL(mlxsw_core_port_init);
+
+void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port)
+{
+	__mlxsw_core_port_fini(mlxsw_core, local_port);
+}
 EXPORT_SYMBOL(mlxsw_core_port_fini);
 
+int mlxsw_core_cpu_port_init(struct mlxsw_core *mlxsw_core,
+			     void *port_driver_priv,
+			     const unsigned char *switch_id,
+			     unsigned char switch_id_len)
+{
+	struct mlxsw_core_port *mlxsw_core_port =
+				&mlxsw_core->ports[MLXSW_PORT_CPU_PORT];
+	int err;
+
+	err = __mlxsw_core_port_init(mlxsw_core, MLXSW_PORT_CPU_PORT,
+				     DEVLINK_PORT_FLAVOUR_CPU,
+				     0, false, 0,
+				     switch_id, switch_id_len);
+	if (err)
+		return err;
+
+	mlxsw_core_port->port_driver_priv = port_driver_priv;
+	return 0;
+}
+EXPORT_SYMBOL(mlxsw_core_cpu_port_init);
+
+void mlxsw_core_cpu_port_fini(struct mlxsw_core *mlxsw_core)
+{
+	__mlxsw_core_port_fini(mlxsw_core, MLXSW_PORT_CPU_PORT);
+}
+EXPORT_SYMBOL(mlxsw_core_cpu_port_fini);
+
 void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
 			     void *port_driver_priv, struct net_device *dev)
 {

drivers/net/ethernet/mellanox/mlxsw/core.h

@@ -177,6 +177,11 @@ int mlxsw_core_port_init(struct mlxsw_core *mlxsw_core, u8 local_port,
 			 const unsigned char *switch_id,
 			 unsigned char switch_id_len);
 void mlxsw_core_port_fini(struct mlxsw_core *mlxsw_core, u8 local_port);
+int mlxsw_core_cpu_port_init(struct mlxsw_core *mlxsw_core,
+			     void *port_driver_priv,
+			     const unsigned char *switch_id,
+			     unsigned char switch_id_len);
+void mlxsw_core_cpu_port_fini(struct mlxsw_core *mlxsw_core);
 void mlxsw_core_port_eth_set(struct mlxsw_core *mlxsw_core, u8 local_port,
 			     void *port_driver_priv, struct net_device *dev);
 void mlxsw_core_port_ib_set(struct mlxsw_core *mlxsw_core, u8 local_port,

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

@@ -3872,6 +3872,45 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port)
 	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
 }
 
+static int mlxsw_sp_cpu_port_create(struct mlxsw_sp *mlxsw_sp)
+{
+	struct mlxsw_sp_port *mlxsw_sp_port;
+	int err;
+
+	mlxsw_sp_port = kzalloc(sizeof(*mlxsw_sp_port), GFP_KERNEL);
+	if (!mlxsw_sp_port)
+		return -ENOMEM;
+
+	mlxsw_sp_port->mlxsw_sp = mlxsw_sp;
+	mlxsw_sp_port->local_port = MLXSW_PORT_CPU_PORT;
+
+	err = mlxsw_core_cpu_port_init(mlxsw_sp->core,
+				       mlxsw_sp_port,
+				       mlxsw_sp->base_mac,
+				       sizeof(mlxsw_sp->base_mac));
+	if (err) {
+		dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize core CPU port\n");
+		goto err_core_cpu_port_init;
+	}
+
+	mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = mlxsw_sp_port;
+	return 0;
+
+err_core_cpu_port_init:
+	kfree(mlxsw_sp_port);
+	return err;
+}
+
+static void mlxsw_sp_cpu_port_remove(struct mlxsw_sp *mlxsw_sp)
+{
+	struct mlxsw_sp_port *mlxsw_sp_port =
+				mlxsw_sp->ports[MLXSW_PORT_CPU_PORT];
+
+	mlxsw_core_cpu_port_fini(mlxsw_sp->core);
+	mlxsw_sp->ports[MLXSW_PORT_CPU_PORT] = NULL;
+	kfree(mlxsw_sp_port);
+}
+
 static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port)
 {
 	return mlxsw_sp->ports[local_port] != NULL;
@@ -3884,6 +3923,7 @@ static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp)
 	for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++)
 		if (mlxsw_sp_port_created(mlxsw_sp, i))
 			mlxsw_sp_port_remove(mlxsw_sp, i);
+	mlxsw_sp_cpu_port_remove(mlxsw_sp);
 	kfree(mlxsw_sp->port_to_module);
 	kfree(mlxsw_sp->ports);
 }
@@ -3908,6 +3948,10 @@ static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
 		goto err_port_to_module_alloc;
 	}
 
+	err = mlxsw_sp_cpu_port_create(mlxsw_sp);
+	if (err)
+		goto err_cpu_port_create;
+
 	for (i = 1; i < max_ports; i++) {
 		/* Mark as invalid */
 		mlxsw_sp->port_to_module[i] = -1;
@@ -3931,6 +3975,8 @@ static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp)
 	for (i--; i >= 1; i--)
 		if (mlxsw_sp_port_created(mlxsw_sp, i))
 			mlxsw_sp_port_remove(mlxsw_sp, i);
+	mlxsw_sp_cpu_port_remove(mlxsw_sp);
+err_cpu_port_create:
 	kfree(mlxsw_sp->port_to_module);
 err_port_to_module_alloc:
 	kfree(mlxsw_sp->ports);