mlxsw: use devlink helper to generate physical port name

Since devlink knows the info needed to generate the physical port name
in a generic way for all devlink users, use the helper to do the job.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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

@@ -1763,6 +1763,17 @@ enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
 }
 EXPORT_SYMBOL(mlxsw_core_port_type_get);
 
+int mlxsw_core_port_get_phys_port_name(struct mlxsw_core *mlxsw_core,
+				       u8 local_port, char *name, size_t len)
+{
+	struct mlxsw_core_port *mlxsw_core_port =
+					&mlxsw_core->ports[local_port];
+	struct devlink_port *devlink_port = &mlxsw_core_port->devlink_port;
+
+	return devlink_port_get_phys_port_name(devlink_port, name, len);
+}
+EXPORT_SYMBOL(mlxsw_core_port_get_phys_port_name);
+
 static void mlxsw_core_buf_dump_dbg(struct mlxsw_core *mlxsw_core,
 				    const char *buf, size_t size)
 {

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

@@ -209,6 +209,8 @@ void mlxsw_core_port_clear(struct mlxsw_core *mlxsw_core, u8 local_port,
 			   void *port_driver_priv);
 enum devlink_port_type mlxsw_core_port_type_get(struct mlxsw_core *mlxsw_core,
 						u8 local_port);
+int mlxsw_core_port_get_phys_port_name(struct mlxsw_core *mlxsw_core,
+				       u8 local_port, char *name, size_t len);
 
 int mlxsw_core_schedule_dw(struct delayed_work *dwork, unsigned long delay);
 bool mlxsw_core_schedule_work(struct work_struct *work);

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

@@ -1238,21 +1238,10 @@ static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name,
 					    size_t len)
 {
 	struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev);
-	u8 module = mlxsw_sp_port->mapping.module;
-	u8 width = mlxsw_sp_port->mapping.width;
-	u8 lane = mlxsw_sp_port->mapping.lane;
-	int err;
-
-	if (!mlxsw_sp_port->split)
-		err = snprintf(name, len, "p%d", module + 1);
-	else
-		err = snprintf(name, len, "p%ds%d", module + 1,
-			       lane / width);
 
-	if (err >= len)
-		return -EINVAL;
-
-	return 0;
+	return mlxsw_core_port_get_phys_port_name(mlxsw_sp_port->mlxsw_sp->core,
+						  mlxsw_sp_port->local_port,
+						  name, len);
 }
 
 static struct mlxsw_sp_port_mall_tc_entry *

drivers/net/ethernet/mellanox/mlxsw/switchx2.c

@@ -417,13 +417,10 @@ static int mlxsw_sx_port_get_phys_port_name(struct net_device *dev, char *name,
 					    size_t len)
 {
 	struct mlxsw_sx_port *mlxsw_sx_port = netdev_priv(dev);
-	int err;
-
-	err = snprintf(name, len, "p%d", mlxsw_sx_port->mapping.module + 1);
-	if (err >= len)
-		return -EINVAL;
 
-	return 0;
+	return mlxsw_core_port_get_phys_port_name(mlxsw_sx_port->mlxsw_sx->core,
+						  mlxsw_sx_port->local_port,
+						  name, len);
 }
 
 static const struct net_device_ops mlxsw_sx_port_netdev_ops = {