[Mellanox] Validate Module Presence Using Sysfs Before Accessing EEPROM in Thermal Control Daemon

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

@@ -483,6 +483,9 @@ def get_presence(self):
         Returns:
             bool: True if device is present, False if not
         """
+        presence_sysfs = f'/sys/module/sx_core/asic0/module{self.sdk_index}/hw_present' if self.is_sw_control() else f'/sys/module/sx_core/asic0/module{self.sdk_index}/present'
+        if utils.read_int_from_file(presence_sysfs) != 1:
+            return False
         eeprom_raw = self._read_eeprom(0, 1, log_on_error=False)
         return eeprom_raw is not None
 

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

@@ -435,6 +435,8 @@ def get_temperature(self):
             A float number of current temperature in Celsius up to nearest thousandth
             of one degree Celsius, e.g. 30.125
         """
+        if not self.sfp.get_presence():
+            return None
         value = self.sfp.get_temperature()
         return value if (value != 0.0 and value is not None) else None
 
@@ -446,6 +448,8 @@ def get_high_threshold(self):
             A float number, the high threshold temperature of thermal in Celsius
             up to nearest thousandth of one degree Celsius, e.g. 30.125
         """
+        if not self.sfp.get_presence():
+            return None
         value = self.sfp.get_temperature_warning_threshold()
         return value if (value != 0.0 and value is not None) else None
 
@@ -457,6 +461,8 @@ def get_high_critical_threshold(self):
             A float number, the high critical threshold temperature of thermal in Celsius
             up to nearest thousandth of one degree Celsius, e.g. 30.125
         """
+        if not self.sfp.get_presence():
+            return None
         value = self.sfp.get_temperature_critical_threshold()
         return value if (value != 0.0 and value is not None) else None