594 lines
22 KiB
Python
594 lines
22 KiB
Python
#!/usr/bin/env python
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#############################################################################
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# Mellanox
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#
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# Module contains an implementation of SONiC Platform Base API and
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# provides the thermals data which are available in the platform
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#
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#############################################################################
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try:
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from sonic_platform_base.thermal_base import ThermalBase
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from sonic_daemon_base.daemon_base import Logger
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from os import listdir
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from os.path import isfile, join
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import io
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import os.path
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except ImportError as e:
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raise ImportError (str(e) + "- required module not found")
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# Global logger class instance
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logger = Logger()
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THERMAL_DEV_CATEGORY_CPU_CORE = "cpu_core"
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THERMAL_DEV_CATEGORY_CPU_PACK = "cpu_pack"
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THERMAL_DEV_CATEGORY_MODULE = "module"
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THERMAL_DEV_CATEGORY_PSU = "psu"
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THERMAL_DEV_CATEGORY_GEARBOX = "gearbox"
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THERMAL_DEV_CATEGORY_AMBIENT = "ambient"
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THERMAL_DEV_ASIC_AMBIENT = "asic_amb"
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THERMAL_DEV_FAN_AMBIENT = "fan_amb"
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THERMAL_DEV_PORT_AMBIENT = "port_amb"
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THERMAL_DEV_COMEX_AMBIENT = "comex_amb"
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THERMAL_DEV_BOARD_AMBIENT = "board_amb"
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THERMAL_API_GET_TEMPERATURE = "get_temperature"
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THERMAL_API_GET_HIGH_THRESHOLD = "get_high_threshold"
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD = "get_high_critical_threshold"
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THERMAL_API_INVALID_HIGH_THRESHOLD = 0.0
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HW_MGMT_THERMAL_ROOT = "/var/run/hw-management/thermal/"
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THERMAL_ZONE_ASIC_PATH = "/var/run/hw-management/thermal/mlxsw/"
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THERMAL_ZONE_MODULE_PATH = "/var/run/hw-management/thermal/mlxsw-module{}/"
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THERMAL_ZONE_GEARBOX_PATH = "/var/run/hw-management/thermal/mlxsw-gearbox{}/"
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THERMAL_ZONE_MODE = "thermal_zone_mode"
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THERMAL_ZONE_POLICY = "thermal_zone_policy"
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THERMAL_ZONE_TEMPERATURE = "thermal_zone_temp"
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THERMAL_ZONE_NORMAL_TEMPERATURE = "temp_trip_norm"
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MODULE_TEMPERATURE_FAULT_PATH = "/var/run/hw-management/thermal/module{}_temp_fault"
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thermal_api_handler_cpu_core = {
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THERMAL_API_GET_TEMPERATURE:"cpu_core{}",
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THERMAL_API_GET_HIGH_THRESHOLD:"cpu_core{}_max",
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD:"cpu_core{}_crit"
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}
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thermal_api_handler_cpu_pack = {
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THERMAL_API_GET_TEMPERATURE:"cpu_pack",
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THERMAL_API_GET_HIGH_THRESHOLD:"cpu_pack_max",
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD:"cpu_pack_crit"
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}
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thermal_api_handler_module = {
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THERMAL_API_GET_TEMPERATURE:"module{}_temp_input",
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THERMAL_API_GET_HIGH_THRESHOLD:"module{}_temp_crit",
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD:"module{}_temp_emergency"
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}
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thermal_api_handler_psu = {
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THERMAL_API_GET_TEMPERATURE:"psu{}_temp",
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THERMAL_API_GET_HIGH_THRESHOLD:"psu{}_temp_max",
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD:None
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}
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thermal_api_handler_gearbox = {
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THERMAL_API_GET_TEMPERATURE:"gearbox{}_temp_input",
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THERMAL_API_GET_HIGH_THRESHOLD:None,
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THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD:None
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}
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thermal_ambient_apis = {
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THERMAL_DEV_ASIC_AMBIENT : "asic",
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THERMAL_DEV_PORT_AMBIENT : "port_amb",
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THERMAL_DEV_FAN_AMBIENT : "fan_amb",
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THERMAL_DEV_COMEX_AMBIENT : "comex_amb",
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THERMAL_DEV_BOARD_AMBIENT : "board_amb"
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}
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thermal_ambient_name = {
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THERMAL_DEV_ASIC_AMBIENT : "Ambient ASIC Temp",
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THERMAL_DEV_PORT_AMBIENT : "Ambient Port Side Temp",
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THERMAL_DEV_FAN_AMBIENT : "Ambient Fan Side Temp",
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THERMAL_DEV_COMEX_AMBIENT : "Ambient COMEX Temp",
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THERMAL_DEV_BOARD_AMBIENT : "Ambient Board Temp"
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}
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thermal_api_handlers = {
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THERMAL_DEV_CATEGORY_CPU_CORE : thermal_api_handler_cpu_core,
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THERMAL_DEV_CATEGORY_CPU_PACK : thermal_api_handler_cpu_pack,
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THERMAL_DEV_CATEGORY_MODULE : thermal_api_handler_module,
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THERMAL_DEV_CATEGORY_PSU : thermal_api_handler_psu,
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THERMAL_DEV_CATEGORY_GEARBOX : thermal_api_handler_gearbox
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}
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thermal_name = {
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THERMAL_DEV_CATEGORY_CPU_CORE : "CPU Core {} Temp",
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THERMAL_DEV_CATEGORY_CPU_PACK : "CPU Pack Temp",
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THERMAL_DEV_CATEGORY_MODULE : "xSFP module {} Temp",
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THERMAL_DEV_CATEGORY_PSU : "PSU-{} Temp",
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THERMAL_DEV_CATEGORY_GEARBOX : "Gearbox {} Temp"
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}
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thermal_device_categories_all = [
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THERMAL_DEV_CATEGORY_CPU_CORE,
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THERMAL_DEV_CATEGORY_CPU_PACK,
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THERMAL_DEV_CATEGORY_MODULE,
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THERMAL_DEV_CATEGORY_PSU,
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THERMAL_DEV_CATEGORY_AMBIENT,
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THERMAL_DEV_CATEGORY_GEARBOX
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]
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thermal_device_categories_singleton = [
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THERMAL_DEV_CATEGORY_CPU_PACK,
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THERMAL_DEV_CATEGORY_AMBIENT
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]
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thermal_api_names = [
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THERMAL_API_GET_TEMPERATURE,
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THERMAL_API_GET_HIGH_THRESHOLD
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]
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hwsku_dict_thermal = {'ACS-MSN2700': 0, 'LS-SN2700':0, 'ACS-MSN2740': 3, 'ACS-MSN2100': 1, 'ACS-MSN2410': 2, 'ACS-MSN2010': 4, 'ACS-MSN3700': 5, 'ACS-MSN3700C': 6, 'Mellanox-SN2700': 0, 'Mellanox-SN2700-D48C8': 0, 'ACS-MSN3800': 7, 'Mellanox-SN3800-D112C8': 7, 'ACS-MSN4700': 8, 'ACS-MSN3420': 9, 'ACS-MSN4600C': 10}
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thermal_profile_list = [
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# 2700
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 2),
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THERMAL_DEV_CATEGORY_MODULE:(1, 32),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 2100
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 16),
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THERMAL_DEV_CATEGORY_PSU:(0, 0),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,0),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT,
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]
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)
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},
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# 2410
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 2),
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THERMAL_DEV_CATEGORY_MODULE:(1, 56),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT,
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]
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)
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},
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# 2740
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 32),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,0),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT,
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]
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)
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},
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# 2010
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 22),
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THERMAL_DEV_CATEGORY_PSU:(0, 0),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,0),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT,
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]
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)
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},
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# 3700
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 32),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 3700c
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 2),
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THERMAL_DEV_CATEGORY_MODULE:(1, 32),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 3800
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 64),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(1,32),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 4700
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 32),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 3420
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 2),
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THERMAL_DEV_CATEGORY_MODULE:(1, 60),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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},
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# 4600C
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{
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THERMAL_DEV_CATEGORY_CPU_CORE:(0, 4),
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THERMAL_DEV_CATEGORY_MODULE:(1, 64),
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THERMAL_DEV_CATEGORY_PSU:(1, 2),
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THERMAL_DEV_CATEGORY_CPU_PACK:(0,1),
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THERMAL_DEV_CATEGORY_GEARBOX:(0,0),
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THERMAL_DEV_CATEGORY_AMBIENT:(0,
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[
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THERMAL_DEV_ASIC_AMBIENT,
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THERMAL_DEV_COMEX_AMBIENT,
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THERMAL_DEV_PORT_AMBIENT,
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THERMAL_DEV_FAN_AMBIENT
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]
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)
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}
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]
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def initialize_thermals(sku, thermal_list, psu_list):
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# create thermal objects for all categories of sensors
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tp_index = hwsku_dict_thermal[sku]
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thermal_profile = thermal_profile_list[tp_index]
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Thermal.thermal_profile = thermal_profile
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for category in thermal_device_categories_all:
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if category == THERMAL_DEV_CATEGORY_AMBIENT:
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count, ambient_list = thermal_profile[category]
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for ambient in ambient_list:
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thermal = Thermal(category, ambient, True)
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thermal_list.append(thermal)
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else:
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start, count = 0, 0
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if category in thermal_profile:
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start, count = thermal_profile[category]
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if count == 0:
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continue
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if count == 1:
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thermal = Thermal(category, 0, False)
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thermal_list.append(thermal)
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else:
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if category == THERMAL_DEV_CATEGORY_PSU:
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for index in range(count):
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thermal = Thermal(category, start + index, True, psu_list[index].get_power_available_status)
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thermal_list.append(thermal)
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else:
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for index in range(count):
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thermal = Thermal(category, start + index, True)
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thermal_list.append(thermal)
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class Thermal(ThermalBase):
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thermal_profile = None
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thermal_algorithm_status = False
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def __init__(self, category, index, has_index, dependency = None):
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"""
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index should be a string for category ambient and int for other categories
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"""
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if category == THERMAL_DEV_CATEGORY_AMBIENT:
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self.name = thermal_ambient_name[index]
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self.index = index
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elif has_index:
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self.name = thermal_name[category].format(index)
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self.index = index
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else:
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self.name = thermal_name[category]
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self.index = 0
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self.category = category
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self.temperature = self._get_file_from_api(THERMAL_API_GET_TEMPERATURE)
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self.high_threshold = self._get_file_from_api(THERMAL_API_GET_HIGH_THRESHOLD)
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self.high_critical_threshold = self._get_file_from_api(THERMAL_API_GET_HIGH_CRITICAL_THRESHOLD)
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self.dependency = dependency
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def get_name(self):
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"""
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Retrieves the name of the device
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Returns:
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string: The name of the device
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"""
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return self.name
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@classmethod
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def _read_generic_file(cls, filename, len):
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"""
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Read a generic file, returns the contents of the file
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"""
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result = None
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try:
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with open(filename, 'r') as fileobj:
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result = fileobj.read().strip()
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except Exception as e:
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logger.log_info("Fail to read file {} due to {}".format(filename, repr(e)))
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return result
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def _get_file_from_api(self, api_name):
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if self.category == THERMAL_DEV_CATEGORY_AMBIENT:
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if api_name == THERMAL_API_GET_TEMPERATURE:
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filename = thermal_ambient_apis[self.index]
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else:
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return None
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else:
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handler = thermal_api_handlers[self.category][api_name]
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if self.category in thermal_device_categories_singleton:
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filename = handler
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else:
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if handler:
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filename = handler.format(self.index)
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else:
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return None
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return join(HW_MGMT_THERMAL_ROOT, filename)
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def get_temperature(self):
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"""
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Retrieves current temperature reading from thermal
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Returns:
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A float number of current temperature in Celsius up to nearest thousandth
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of one degree Celsius, e.g. 30.125
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"""
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if self.dependency:
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status, hint = self.dependency()
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if not status:
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logger.log_debug("get_temperature for {} failed due to {}".format(self.name, hint))
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return None
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value_str = self._read_generic_file(self.temperature, 0)
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if value_str is None:
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return None
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value_float = float(value_str)
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if self.category == THERMAL_DEV_CATEGORY_MODULE and value_float == THERMAL_API_INVALID_HIGH_THRESHOLD:
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return None
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return value_float / 1000.0
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def get_high_threshold(self):
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"""
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Retrieves the high threshold temperature of thermal
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Returns:
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A float number, the high threshold temperature of thermal in Celsius
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up to nearest thousandth of one degree Celsius, e.g. 30.125
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"""
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if self.high_threshold is None:
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return None
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if self.dependency:
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status, hint = self.dependency()
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if not status:
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logger.log_debug("get_high_threshold for {} failed due to {}".format(self.name, hint))
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return None
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value_str = self._read_generic_file(self.high_threshold, 0)
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if value_str is None:
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return None
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value_float = float(value_str)
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if self.category == THERMAL_DEV_CATEGORY_MODULE and value_float == THERMAL_API_INVALID_HIGH_THRESHOLD:
|
|
return None
|
|
return value_float / 1000.0
|
|
|
|
|
|
def get_high_critical_threshold(self):
|
|
"""
|
|
Retrieves the high critical threshold temperature of thermal
|
|
|
|
Returns:
|
|
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 self.high_critical_threshold is None:
|
|
return None
|
|
if self.dependency:
|
|
status, hint = self.dependency()
|
|
if not status:
|
|
logger.log_debug("get_high_critical_threshold for {} failed due to {}".format(self.name, hint))
|
|
return None
|
|
value_str = self._read_generic_file(self.high_critical_threshold, 0)
|
|
if value_str is None:
|
|
return None
|
|
value_float = float(value_str)
|
|
if self.category == THERMAL_DEV_CATEGORY_MODULE and value_float == THERMAL_API_INVALID_HIGH_THRESHOLD:
|
|
return None
|
|
return value_float / 1000.0
|
|
|
|
|
|
@classmethod
|
|
def _write_generic_file(cls, filename, content):
|
|
"""
|
|
Generic functions to write content to a specified file path if
|
|
the content has changed.
|
|
"""
|
|
try:
|
|
with open(filename, 'w+') as file_obj:
|
|
origin_content = file_obj.read()
|
|
if origin_content != content:
|
|
file_obj.write(content)
|
|
except Exception as e:
|
|
logger.log_info("Fail to write file {} due to {}".format(filename, repr(e)))
|
|
|
|
@classmethod
|
|
def set_thermal_algorithm_status(cls, status, force=True):
|
|
"""
|
|
Enable/disable kernel thermal algorithm.
|
|
When enable kernel thermal algorithm, kernel will adjust fan speed
|
|
according to thermal zones temperature. Please note that kernel will
|
|
only adjust fan speed when temperature across some "edge", e.g temperature
|
|
changes to exceed high threshold.
|
|
When disable kernel thermal algorithm, kernel no longer adjust fan speed.
|
|
We usually disable the algorithm when we want to set a fix speed. E.g, when
|
|
a fan unit is removed from system, we will set fan speed to 100% and disable
|
|
the algorithm to avoid it adjust the speed.
|
|
"""
|
|
if not cls.thermal_profile:
|
|
raise Exception("Fail to get thermal profile for this switch")
|
|
|
|
if not force and cls.thermal_algorithm_status == status:
|
|
return
|
|
|
|
cls.thermal_algorithm_status = status
|
|
content = "enabled" if status else "disabled"
|
|
policy = "step_wise" if status else "user_space"
|
|
cls._write_generic_file(join(THERMAL_ZONE_ASIC_PATH, THERMAL_ZONE_MODE), content)
|
|
cls._write_generic_file(join(THERMAL_ZONE_ASIC_PATH, THERMAL_ZONE_POLICY), policy)
|
|
|
|
if THERMAL_DEV_CATEGORY_MODULE in cls.thermal_profile:
|
|
start, count = cls.thermal_profile[THERMAL_DEV_CATEGORY_MODULE]
|
|
if count != 0:
|
|
for index in range(count):
|
|
cls._write_generic_file(join(THERMAL_ZONE_MODULE_PATH.format(start + index), THERMAL_ZONE_MODE), content)
|
|
cls._write_generic_file(join(THERMAL_ZONE_MODULE_PATH.format(start + index), THERMAL_ZONE_POLICY), policy)
|
|
|
|
if THERMAL_DEV_CATEGORY_GEARBOX in cls.thermal_profile:
|
|
start, count = cls.thermal_profile[THERMAL_DEV_CATEGORY_GEARBOX]
|
|
if count != 0:
|
|
for index in range(count):
|
|
cls._write_generic_file(join(THERMAL_ZONE_GEARBOX_PATH.format(start + index), THERMAL_ZONE_MODE), content)
|
|
cls._write_generic_file(join(THERMAL_ZONE_GEARBOX_PATH.format(start + index), THERMAL_ZONE_POLICY), policy)
|
|
|
|
@classmethod
|
|
def check_thermal_zone_temperature(cls):
|
|
"""
|
|
Check thermal zone current temperature with normal temperature
|
|
|
|
Returns:
|
|
True if all thermal zones current temperature less or equal than normal temperature
|
|
"""
|
|
if not cls.thermal_profile:
|
|
raise Exception("Fail to get thermal profile for this switch")
|
|
|
|
if not cls._check_thermal_zone_temperature(THERMAL_ZONE_ASIC_PATH):
|
|
return False
|
|
|
|
if THERMAL_DEV_CATEGORY_MODULE in cls.thermal_profile:
|
|
start, count = cls.thermal_profile[THERMAL_DEV_CATEGORY_MODULE]
|
|
if count != 0:
|
|
for index in range(count):
|
|
if not cls._check_thermal_zone_temperature(THERMAL_ZONE_MODULE_PATH.format(start + index)):
|
|
return False
|
|
|
|
if THERMAL_DEV_CATEGORY_GEARBOX in cls.thermal_profile:
|
|
start, count = cls.thermal_profile[THERMAL_DEV_CATEGORY_GEARBOX]
|
|
if count != 0:
|
|
for index in range(count):
|
|
if not cls._check_thermal_zone_temperature(THERMAL_ZONE_GEARBOX_PATH.format(start + index)):
|
|
return False
|
|
|
|
return True
|
|
|
|
@classmethod
|
|
def _check_thermal_zone_temperature(cls, thermal_zone_path):
|
|
normal_temp_path = join(thermal_zone_path, THERMAL_ZONE_NORMAL_TEMPERATURE)
|
|
current_temp_path = join(thermal_zone_path, THERMAL_ZONE_TEMPERATURE)
|
|
normal = None
|
|
current = None
|
|
try:
|
|
with open(normal_temp_path, 'r') as file_obj:
|
|
normal = float(file_obj.read())
|
|
|
|
with open(current_temp_path, 'r') as file_obj:
|
|
current = float(file_obj.read())
|
|
|
|
return current <= normal
|
|
except Exception as e:
|
|
logger.log_info("Fail to check thermal zone temperature for file {} due to {}".format(thermal_zone_path, repr(e)))
|
|
|
|
@classmethod
|
|
def check_module_temperature_trustable(cls):
|
|
if not cls.thermal_profile:
|
|
raise Exception("Fail to get thermal profile for this switch")
|
|
|
|
start, count = cls.thermal_profile[THERMAL_DEV_CATEGORY_MODULE]
|
|
for index in range(count):
|
|
fault_file_path = MODULE_TEMPERATURE_FAULT_PATH.format(index + start)
|
|
fault = cls._read_generic_file(fault_file_path, 0)
|
|
if fault.strip() != '0':
|
|
return 'untrust'
|
|
return 'trust'
|
|
|
|
@classmethod
|
|
def get_min_amb_temperature(cls):
|
|
fan_ambient_path = join(HW_MGMT_THERMAL_ROOT, THERMAL_DEV_FAN_AMBIENT)
|
|
port_ambient_path = join(HW_MGMT_THERMAL_ROOT, THERMAL_DEV_PORT_AMBIENT)
|
|
|
|
# if there is any exception, let it raise
|
|
fan_ambient_temp = int(cls._read_generic_file(fan_ambient_path, 0))
|
|
port_ambient_temp = int(cls._read_generic_file(port_ambient_path, 0))
|
|
return fan_ambient_temp if fan_ambient_temp < port_ambient_temp else port_ambient_temp
|