Merge branch 'mlxsw-line-card-prep'

Ido Schimmel says:

====================
mlxsw: Preparations for line cards support

Currently, mlxsw registers thermal zones as well as hwmon entries for
objects such as transceiver modules and gearboxes. In upcoming modular
systems, these objects are no longer found on the main board (i.e., slot
0), but on plug-able line cards. This patchset prepares mlxsw for such
systems in terms of hwmon, thermal and cable access support.

Patches #1-#3 gradually prepare mlxsw for transceiver modules access
support for line cards by splitting some of the internal structures and
some APIs.

Patches #4-#5 gradually prepare mlxsw for hwmon support for line cards
by splitting some of the internal structures and augmenting them with a
slot index.

Patches #6-#7 do the same for thermal zones.

Patch #8 selects cooling device for binding to a thermal zone by exact
name match to prevent binding to non-relevant devices.

Patch #9 replaces internal define for thermal zone name length with a
common define.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -9,47 +9,56 @@
 struct ethtool_modinfo;
 struct ethtool_eeprom;
 
-int mlxsw_env_module_temp_thresholds_get(struct mlxsw_core *core, int module,
-					 int off, int *temp);
+int mlxsw_env_module_temp_thresholds_get(struct mlxsw_core *core,
+					 u8 slot_index, int module, int off,
+					 int *temp);
 
 int mlxsw_env_get_module_info(struct net_device *netdev,
-			      struct mlxsw_core *mlxsw_core, int module,
-			      struct ethtool_modinfo *modinfo);
+			      struct mlxsw_core *mlxsw_core, u8 slot_index,
+			      int module, struct ethtool_modinfo *modinfo);
 
 int mlxsw_env_get_module_eeprom(struct net_device *netdev,
-				struct mlxsw_core *mlxsw_core, int module,
-				struct ethtool_eeprom *ee, u8 *data);
+				struct mlxsw_core *mlxsw_core, u8 slot_index,
+				int module, struct ethtool_eeprom *ee,
+				u8 *data);
 
 int
-mlxsw_env_get_module_eeprom_by_page(struct mlxsw_core *mlxsw_core, u8 module,
+mlxsw_env_get_module_eeprom_by_page(struct mlxsw_core *mlxsw_core,
+				    u8 slot_index, u8 module,
 				    const struct ethtool_module_eeprom *page,
 				    struct netlink_ext_ack *extack);
 
 int mlxsw_env_reset_module(struct net_device *netdev,
-			   struct mlxsw_core *mlxsw_core, u8 module,
-			   u32 *flags);
+			   struct mlxsw_core *mlxsw_core, u8 slot_index,
+			   u8 module, u32 *flags);
 
 int
-mlxsw_env_get_module_power_mode(struct mlxsw_core *mlxsw_core, u8 module,
+mlxsw_env_get_module_power_mode(struct mlxsw_core *mlxsw_core, u8 slot_index,
+				u8 module,
 				struct ethtool_module_power_mode_params *params,
 				struct netlink_ext_ack *extack);
 
 int
-mlxsw_env_set_module_power_mode(struct mlxsw_core *mlxsw_core, u8 module,
+mlxsw_env_set_module_power_mode(struct mlxsw_core *mlxsw_core, u8 slot_index,
+				u8 module,
 				enum ethtool_module_power_mode_policy policy,
 				struct netlink_ext_ack *extack);
 
 int
-mlxsw_env_module_overheat_counter_get(struct mlxsw_core *mlxsw_core, u8 module,
-				      u64 *p_counter);
+mlxsw_env_module_overheat_counter_get(struct mlxsw_core *mlxsw_core, u8 slot_index,
+				      u8 module, u64 *p_counter);
 
-void mlxsw_env_module_port_map(struct mlxsw_core *mlxsw_core, u8 module);
+void mlxsw_env_module_port_map(struct mlxsw_core *mlxsw_core, u8 slot_index,
+			       u8 module);
 
-void mlxsw_env_module_port_unmap(struct mlxsw_core *mlxsw_core, u8 module);
+void mlxsw_env_module_port_unmap(struct mlxsw_core *mlxsw_core, u8 slot_index,
+				 u8 module);
 
-int mlxsw_env_module_port_up(struct mlxsw_core *mlxsw_core, u8 module);
+int mlxsw_env_module_port_up(struct mlxsw_core *mlxsw_core, u8 slot_index,
+			     u8 module);
 
-void mlxsw_env_module_port_down(struct mlxsw_core *mlxsw_core, u8 module);
+void mlxsw_env_module_port_down(struct mlxsw_core *mlxsw_core, u8 slot_index,
+				u8 module);
 
 int mlxsw_env_init(struct mlxsw_core *core, struct mlxsw_env **p_env);
 void mlxsw_env_fini(struct mlxsw_env *env);

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

@@ -59,7 +59,8 @@ static int mlxsw_m_port_open(struct net_device *dev)
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
 	struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
 
-	return mlxsw_env_module_port_up(mlxsw_m->core, mlxsw_m_port->module);
+	return mlxsw_env_module_port_up(mlxsw_m->core, 0,
+					mlxsw_m_port->module);
 }
 
 static int mlxsw_m_port_stop(struct net_device *dev)
@@ -67,7 +68,7 @@ static int mlxsw_m_port_stop(struct net_device *dev)
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(dev);
 	struct mlxsw_m *mlxsw_m = mlxsw_m_port->mlxsw_m;
 
-	mlxsw_env_module_port_down(mlxsw_m->core, mlxsw_m_port->module);
+	mlxsw_env_module_port_down(mlxsw_m->core, 0, mlxsw_m_port->module);
 	return 0;
 }
 
@@ -110,7 +111,7 @@ static int mlxsw_m_get_module_info(struct net_device *netdev,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_get_module_info(netdev, core, mlxsw_m_port->module,
+	return mlxsw_env_get_module_info(netdev, core, 0, mlxsw_m_port->module,
 					 modinfo);
 }
 
@@ -121,8 +122,8 @@ mlxsw_m_get_module_eeprom(struct net_device *netdev, struct ethtool_eeprom *ee,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_get_module_eeprom(netdev, core, mlxsw_m_port->module,
-					   ee, data);
+	return mlxsw_env_get_module_eeprom(netdev, core, 0,
+					   mlxsw_m_port->module, ee, data);
 }
 
 static int
@@ -133,7 +134,8 @@ mlxsw_m_get_module_eeprom_by_page(struct net_device *netdev,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_get_module_eeprom_by_page(core, mlxsw_m_port->module,
+	return mlxsw_env_get_module_eeprom_by_page(core, 0,
+						   mlxsw_m_port->module,
 						   page, extack);
 }
 
@@ -142,7 +144,7 @@ static int mlxsw_m_reset(struct net_device *netdev, u32 *flags)
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_reset_module(netdev, core, mlxsw_m_port->module,
+	return mlxsw_env_reset_module(netdev, core, 0, mlxsw_m_port->module,
 				      flags);
 }
 
@@ -154,7 +156,7 @@ mlxsw_m_get_module_power_mode(struct net_device *netdev,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_get_module_power_mode(core, mlxsw_m_port->module,
+	return mlxsw_env_get_module_power_mode(core, 0, mlxsw_m_port->module,
 					       params, extack);
 }
 
@@ -166,7 +168,7 @@ mlxsw_m_set_module_power_mode(struct net_device *netdev,
 	struct mlxsw_m_port *mlxsw_m_port = netdev_priv(netdev);
 	struct mlxsw_core *core = mlxsw_m_port->mlxsw_m->core;
 
-	return mlxsw_env_set_module_power_mode(core, mlxsw_m_port->module,
+	return mlxsw_env_set_module_power_mode(core, 0, mlxsw_m_port->module,
 					       params->policy, extack);
 }
 
@@ -311,7 +313,7 @@ static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u16 local_port,
 
 	if (WARN_ON_ONCE(module >= max_ports))
 		return -EINVAL;
-	mlxsw_env_module_port_map(mlxsw_m->core, module);
+	mlxsw_env_module_port_map(mlxsw_m->core, 0, module);
 	mlxsw_m->module_to_port[module] = ++mlxsw_m->max_ports;
 
 	return 0;
@@ -320,7 +322,7 @@ static int mlxsw_m_port_module_map(struct mlxsw_m *mlxsw_m, u16 local_port,
 static void mlxsw_m_port_module_unmap(struct mlxsw_m *mlxsw_m, u8 module)
 {
 	mlxsw_m->module_to_port[module] = -1;
-	mlxsw_env_module_port_unmap(mlxsw_m->core, module);
+	mlxsw_env_module_port_unmap(mlxsw_m->core, 0, module);
 }
 
 static int mlxsw_m_ports_create(struct mlxsw_m *mlxsw_m)

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

@@ -539,7 +539,7 @@ mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u16 local_port,
 	char pmlp_pl[MLXSW_REG_PMLP_LEN];
 	int i, err;
 
-	mlxsw_env_module_port_map(mlxsw_sp->core, port_mapping->module);
+	mlxsw_env_module_port_map(mlxsw_sp->core, 0, port_mapping->module);
 
 	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
 	mlxsw_reg_pmlp_width_set(pmlp_pl, port_mapping->width);
@@ -554,19 +554,19 @@ mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u16 local_port,
 	return 0;
 
 err_pmlp_write:
-	mlxsw_env_module_port_unmap(mlxsw_sp->core, port_mapping->module);
+	mlxsw_env_module_port_unmap(mlxsw_sp->core, 0, port_mapping->module);
 	return err;
 }
 
 static void mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u16 local_port,
-				       u8 module)
+				       u8 slot_index, u8 module)
 {
 	char pmlp_pl[MLXSW_REG_PMLP_LEN];
 
 	mlxsw_reg_pmlp_pack(pmlp_pl, local_port);
 	mlxsw_reg_pmlp_width_set(pmlp_pl, 0);
 	mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl);
-	mlxsw_env_module_port_unmap(mlxsw_sp->core, module);
+	mlxsw_env_module_port_unmap(mlxsw_sp->core, slot_index, module);
 }
 
 static int mlxsw_sp_port_open(struct net_device *dev)
@@ -575,7 +575,7 @@ static int mlxsw_sp_port_open(struct net_device *dev)
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	int err;
 
-	err = mlxsw_env_module_port_up(mlxsw_sp->core,
+	err = mlxsw_env_module_port_up(mlxsw_sp->core, 0,
 				       mlxsw_sp_port->mapping.module);
 	if (err)
 		return err;
@@ -586,7 +586,7 @@ static int mlxsw_sp_port_open(struct net_device *dev)
 	return 0;
 
 err_port_admin_status_set:
-	mlxsw_env_module_port_down(mlxsw_sp->core,
+	mlxsw_env_module_port_down(mlxsw_sp->core, 0,
 				   mlxsw_sp_port->mapping.module);
 	return err;
 }
@@ -598,7 +598,7 @@ static int mlxsw_sp_port_stop(struct net_device *dev)
 
 	netif_stop_queue(dev);
 	mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false);
-	mlxsw_env_module_port_down(mlxsw_sp->core,
+	mlxsw_env_module_port_down(mlxsw_sp->core, 0,
 				   mlxsw_sp_port->mapping.module);
 	return 0;
 }
@@ -1449,7 +1449,7 @@ static int mlxsw_sp_port_overheat_init_val_set(struct mlxsw_sp_port *mlxsw_sp_po
 	u64 overheat_counter;
 	int err;
 
-	err = mlxsw_env_module_overheat_counter_get(mlxsw_sp->core, module,
+	err = mlxsw_env_module_overheat_counter_get(mlxsw_sp->core, 0, module,
 						    &overheat_counter);
 	if (err)
 		return err;
@@ -1775,7 +1775,8 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u16 local_port,
 	mlxsw_sp_port_swid_set(mlxsw_sp, local_port,
 			       MLXSW_PORT_SWID_DISABLED_PORT);
 err_port_swid_set:
-	mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, port_mapping->module);
+	mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, 0,
+				   port_mapping->module);
 	return err;
 }
 
@@ -1804,7 +1805,7 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u16 local_port)
 	mlxsw_core_port_fini(mlxsw_sp->core, local_port);
 	mlxsw_sp_port_swid_set(mlxsw_sp, local_port,
 			       MLXSW_PORT_SWID_DISABLED_PORT);
-	mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, module);
+	mlxsw_sp_port_module_unmap(mlxsw_sp, local_port, 0, module);
 }
 
 static int mlxsw_sp_cpu_port_create(struct mlxsw_sp *mlxsw_sp)

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

@@ -573,7 +573,7 @@ mlxsw_sp_port_get_transceiver_overheat_stats(struct mlxsw_sp_port *mlxsw_sp_port
 	u64 stats;
 	int err;
 
-	err = mlxsw_env_module_overheat_counter_get(mlxsw_core,
+	err = mlxsw_env_module_overheat_counter_get(mlxsw_core, 0,
 						    port_mapping.module,
 						    &stats);
 	if (err)
@@ -1035,7 +1035,7 @@ static int mlxsw_sp_get_module_info(struct net_device *netdev,
 	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 
-	return mlxsw_env_get_module_info(netdev, mlxsw_sp->core,
+	return mlxsw_env_get_module_info(netdev, mlxsw_sp->core, 0,
 					 mlxsw_sp_port->mapping.module,
 					 modinfo);
 }
@@ -1046,7 +1046,7 @@ static int mlxsw_sp_get_module_eeprom(struct net_device *netdev,
 	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(netdev);
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 
-	return mlxsw_env_get_module_eeprom(netdev, mlxsw_sp->core,
+	return mlxsw_env_get_module_eeprom(netdev, mlxsw_sp->core, 0,
 					   mlxsw_sp_port->mapping.module, ee,
 					   data);
 }
@@ -1060,8 +1060,8 @@ mlxsw_sp_get_module_eeprom_by_page(struct net_device *dev,
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	u8 module = mlxsw_sp_port->mapping.module;
 
-	return mlxsw_env_get_module_eeprom_by_page(mlxsw_sp->core, module, page,
-						   extack);
+	return mlxsw_env_get_module_eeprom_by_page(mlxsw_sp->core, 0, module,
+						   page, extack);
 }
 
 static int
@@ -1204,7 +1204,7 @@ static int mlxsw_sp_reset(struct net_device *dev, u32 *flags)
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	u8 module = mlxsw_sp_port->mapping.module;
 
-	return mlxsw_env_reset_module(dev, mlxsw_sp->core, module, flags);
+	return mlxsw_env_reset_module(dev, mlxsw_sp->core, 0, module, flags);
 }
 
 static int
@@ -1216,8 +1216,8 @@ mlxsw_sp_get_module_power_mode(struct net_device *dev,
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	u8 module = mlxsw_sp_port->mapping.module;
 
-	return mlxsw_env_get_module_power_mode(mlxsw_sp->core, module, params,
-					       extack);
+	return mlxsw_env_get_module_power_mode(mlxsw_sp->core, 0, module,
+					       params, extack);
 }
 
 static int
@@ -1229,7 +1229,7 @@ mlxsw_sp_set_module_power_mode(struct net_device *dev,
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	u8 module = mlxsw_sp_port->mapping.module;
 
-	return mlxsw_env_set_module_power_mode(mlxsw_sp->core, module,
+	return mlxsw_env_set_module_power_mode(mlxsw_sp->core, 0, module,
 					       params->policy, extack);
 }