[sonic_platform]add get_name for fan and psu

platform/mellanox/mlnx-platform-api/sonic_platform/fan.py

@@ -38,17 +38,22 @@ def __init__(self, fan_index, drawer_index = 1, psu_fan = False):
             self.fan_speed_set_path = "fan{}_speed_set".format(self.index)
             self.fan_presence_path = "fan{}_status".format(self.drawer_index)
             self.fan_max_speed_path = "fan{}_max".format(self.index)
+            self._name = "fan{}".format(fan_index + 1)
         else:
             self.fan_speed_get_path = "psu{}_fan1_speed_get".format(self.index)
             self.fan_presence_path = "psu{}_fan1_speed_get".format(self.index)
             self.fan_max_speed_path = "psu{}_max".format(self.index)
+            self._name = "fan(PSU{})".format(fan_index)
         self.fan_status_path = "fan{}_fault".format(self.index)
         self.fan_green_led_path = "led_fan{}_green".format(self.drawer_index)
         self.fan_red_led_path = "led_fan{}_red".format(self.drawer_index)
         self.fan_orange_led_path = "led_fan{}_orange".format(self.drawer_index)
         self.fan_pwm_path = "pwm1"
         self.fan_led_cap_path = "led_fan{}_capability".format(self.drawer_index)
 
+    def get_name(self):
+        return self._name
+
     def get_status(self):
         """
         Retrieves the operational status of fan
@@ -243,4 +248,4 @@ def get_speed_tolerance(self):
                  considered tolerable
         """
         # The tolerance value is fixed as 20% for all the Mellanox platform
-        return 20
+        return 20

platform/mellanox/mlnx-platform-api/sonic_platform/psu.py

@@ -60,6 +60,7 @@ def __init__(self, psu_index, sku):
         psu_oper_status = "thermal/psu{}_pwr_status".format(self.index)
         #psu_oper_status should always be present for all SKUs
         self.psu_oper_status = os.path.join(self.psu_path, psu_oper_status)
+        self._name = "PSU{}".format(psu_index + 1)
 
         if sku in hwsku_dict_psu:
             filemap = psu_profile_list[hwsku_dict_psu[sku]]
@@ -94,6 +95,9 @@ def __init__(self, psu_index, sku):
         if fan.get_presence():
             self._fan_list.append(fan)
 
+    def get_name(self):
+        return self._name
+
     def _read_generic_file(self, filename, len):
         """
         Read a generic file, returns the contents of the file