0846322e9a
- Why I did it hw-management renamed PSU temperature related sysfs: psu1_temp -> psu1_temp1 psu2_temp -> psu2_temp1 psu1_temp_max -> psu1_temp1_max psu2_temp_max -> psu2_temp1_max This PR is to align the change in SONiC. - How I did it Use new sysfs node for PSU temperature and PSU temperature threshold - How to verify it Manual test sonic-mgmt Regression test
651 lines
23 KiB
Python
651 lines
23 KiB
Python
#
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# Copyright (c) 2019-2023 NVIDIA CORPORATION & AFFILIATES.
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# Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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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 PSUs status which are available in the platform
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#
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#############################################################################
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try:
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import os
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import time
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from sonic_platform_base.psu_base import PsuBase
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from sonic_py_common.logger import Logger
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from .device_data import DeviceDataManager
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from .led import PsuLed, SharedLed, ComponentFaultyIndicator
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from . import utils
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from .vpd_parser import VpdParser
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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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PSU_PATH = '/var/run/hw-management/'
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class FixedPsu(PsuBase):
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def __init__(self, psu_index):
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super(FixedPsu, self).__init__()
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self.index = psu_index + 1
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self._name = "PSU {}".format(self.index)
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self.psu_oper_status = os.path.join(PSU_PATH, "thermal/psu{}_pwr_status".format(self.index))
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self._led = None
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def get_name(self):
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return self._name
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def get_model(self):
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return 'N/A'
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def get_serial(self):
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return 'N/A'
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def get_revision(self):
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return 'N/A'
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def get_powergood_status(self):
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"""
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Retrieves the operational status of power supply unit (PSU) defined
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Returns:
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bool: True if PSU is operating properly, False if not
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"""
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return utils.read_int_from_file(self.psu_oper_status) == 1
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def get_presence(self):
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"""
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Retrieves the presence status of power supply unit (PSU) defined
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Returns:
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bool: True if PSU is present, False if not
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"""
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return True
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def get_voltage(self):
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"""
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Retrieves current PSU voltage output
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Returns:
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A float number, the output voltage in volts,
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e.g. 12.1
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"""
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return None
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def get_current(self):
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"""
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Retrieves present electric current supplied by PSU
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Returns:
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A float number, the electric current in amperes, e.g 15.4
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"""
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return None
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def get_power(self):
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"""
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Retrieves current energy supplied by PSU
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Returns:
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A float number, the power in watts, e.g. 302.6
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"""
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return None
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@property
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def led(self):
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if not self._led:
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self._led = PsuLed(self.index)
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return self._led
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def set_status_led(self, color):
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"""
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Sets the state of the PSU status LED
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Args:
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color: A string representing the color with which to set the
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PSU status LED
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Returns:
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bool: True if status LED state is set successfully, False if not
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Notes:
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Only one led for all PSUs.
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"""
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return self.led.set_status(color)
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def get_status_led(self):
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"""
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Gets the state of the PSU status LED
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Returns:
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A string, one of the predefined STATUS_LED_COLOR_* strings above
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"""
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return self.led.get_status()
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def get_power_available_status(self):
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"""
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Gets the power available status
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Returns:
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True if power is present and power on.
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False and "absence of PSU" if power is not present.
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False and "absence of power" if power is present but not power on.
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"""
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if not self.get_presence():
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return False, "absence of PSU"
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elif not self.get_powergood_status():
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return False, "absence of power"
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else:
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return True, ""
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def get_position_in_parent(self):
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"""
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Retrieves 1-based relative physical position in parent device
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Returns:
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integer: The 1-based relative physical position in parent device
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"""
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return self.index
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def is_replaceable(self):
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"""
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Indicate whether this device is replaceable.
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Returns:
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bool: True if it is replaceable.
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"""
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return False
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def get_temperature(self):
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"""
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Retrieves current temperature reading from PSU
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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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return None
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def get_temperature_high_threshold(self):
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"""
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Retrieves the high threshold temperature of PSU
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Returns:
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A float number, the high threshold temperature of PSU 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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return None
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def get_input_voltage(self):
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"""
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Retrieves current PSU voltage input
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Returns:
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A float number, the input voltage in volts,
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e.g. 12.1
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"""
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return None
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def get_input_current(self):
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"""
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Retrieves the input current draw of the power supply
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Returns:
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A float number, the electric current in amperes, e.g 15.4
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"""
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return None
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class Psu(FixedPsu):
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"""Platform-specific Psu class"""
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PSU_CURRENT = "power/psu{}_curr"
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PSU_POWER = "power/psu{}_power"
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PSU_VPD = "eeprom/psu{}_vpd"
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PSU_CURRENT_IN = "power/psu{}_curr_in"
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PSU_VOLT_IN = "power/psu{}_volt_in"
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PORT_AMBIENT_TEMP = os.path.join(PSU_PATH, "thermal/port_amb")
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FAN_AMBIENT_TEMP = os.path.join(PSU_PATH, "thermal/fan_amb")
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AMBIENT_TEMP_CRITICAL_THRESHOLD = os.path.join(PSU_PATH, "config/amb_tmp_crit_limit")
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AMBIENT_TEMP_WARNING_THRESHOLD = os.path.join(PSU_PATH, "config/amb_tmp_warn_limit")
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PSU_POWER_SLOPE = os.path.join(PSU_PATH, "config/psu{}_power_slope")
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shared_led = None
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def __init__(self, psu_index):
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super(Psu, self).__init__(psu_index)
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self._psu_voltage = None
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self._psu_voltage_min = None
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self._psu_voltage_max = None
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self._psu_voltage_capability = None
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self.psu_voltage_in = os.path.join(PSU_PATH, self.PSU_VOLT_IN.format(self.index))
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self.psu_current = os.path.join(PSU_PATH, self.PSU_CURRENT.format(self.index))
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self.psu_current_in = os.path.join(PSU_PATH, self.PSU_CURRENT_IN.format(self.index))
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self.psu_power = os.path.join(PSU_PATH, self.PSU_POWER.format(self.index))
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self.psu_power_max = self.psu_power + "_max"
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self.psu_presence = os.path.join(PSU_PATH, "thermal/psu{}_status".format(self.index))
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self.psu_power_max_capacity = os.path.join(PSU_PATH, "config/psu{}_power_capacity".format(self.index))
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self.psu_temp = os.path.join(PSU_PATH, 'thermal/psu{}_temp1'.format(self.index))
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self.psu_temp_threshold = os.path.join(PSU_PATH, 'thermal/psu{}_temp1_max'.format(self.index))
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self.psu_power_slope = os.path.join(PSU_PATH, self.PSU_POWER_SLOPE.format(self.index))
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from .fan import PsuFan
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self._fan_list.append(PsuFan(psu_index, 1, self))
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self.vpd_parser = VpdParser(os.path.join(PSU_PATH, self.PSU_VPD.format(self.index)))
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# initialize thermal for PSU
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from .thermal import initialize_psu_thermal
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self._thermal_list = initialize_psu_thermal(psu_index, self.get_power_available_status)
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@property
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def psu_voltage(self):
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if not self._psu_voltage:
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psu_voltage_out = os.path.join(PSU_PATH, "power/psu{}_volt_out2".format(self.index))
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if os.path.exists(psu_voltage_out):
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self._psu_voltage = psu_voltage_out
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else:
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psu_voltage_out = os.path.join(PSU_PATH, "power/psu{}_volt".format(self.index))
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if os.path.exists(psu_voltage_out):
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self._psu_voltage = psu_voltage_out
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return self._psu_voltage
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@property
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def psu_voltage_min(self):
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if not self._psu_voltage_min:
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psu_voltage = self.psu_voltage
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if psu_voltage:
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self._psu_voltage_min = psu_voltage + "_min"
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return self._psu_voltage_min
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@property
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def psu_voltage_max(self):
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if not self._psu_voltage_max:
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psu_voltage = self.psu_voltage
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if psu_voltage:
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self._psu_voltage_max = psu_voltage + "_max"
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return self._psu_voltage_max
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@property
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def psu_voltage_capability(self):
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if not self._psu_voltage_capability:
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psu_voltage = self.psu_voltage
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if psu_voltage:
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self._psu_voltage_capability = psu_voltage + "_capability"
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return self._psu_voltage_capability
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def get_model(self):
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"""
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Retrieves the model number (or part number) of the device
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Returns:
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string: Model/part number of device
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"""
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return self.vpd_parser.get_model()
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def get_serial(self):
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"""
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Retrieves the serial number of the device
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Returns:
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string: Serial number of device
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"""
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return self.vpd_parser.get_serial()
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def get_revision(self):
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"""
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Retrieves the hardware revision of the device
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Returns:
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string: Revision value of device
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"""
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return self.vpd_parser.get_revision()
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def get_presence(self):
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"""
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Retrieves the presence status of power supply unit (PSU) defined
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Returns:
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bool: True if PSU is present, False if not
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"""
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return utils.read_int_from_file(self.psu_presence) == 1
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def get_voltage(self):
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"""
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Retrieves current PSU voltage output
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Returns:
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A float number, the output voltage in volts,
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e.g. 12.1
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"""
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if self.get_powergood_status() and self.psu_voltage:
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voltage = utils.read_int_from_file(self.psu_voltage, log_func=logger.log_info)
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return float(voltage) / 1000
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return None
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def get_current(self):
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"""
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Retrieves present electric current supplied by PSU
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Returns:
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A float number, the electric current in amperes, e.g 15.4
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"""
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if self.get_powergood_status():
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amperes = utils.read_int_from_file(self.psu_current, log_func=logger.log_info)
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return float(amperes) / 1000
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return None
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def get_power(self):
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"""
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Retrieves current energy supplied by PSU
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Returns:
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A float number, the power in watts, e.g. 302.6
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"""
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if self.get_powergood_status():
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power = utils.read_int_from_file(self.psu_power, log_func=logger.log_info)
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return float(power) / 1000000
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return None
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@classmethod
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def get_shared_led(cls):
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if not cls.shared_led:
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cls.shared_led = SharedLed(PsuLed(None))
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return cls.shared_led
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@property
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def led(self):
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if not self._led:
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self._led = ComponentFaultyIndicator(Psu.get_shared_led())
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return self._led
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def get_status_led(self):
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"""
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Gets the state of the PSU status LED
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Returns:
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A string, one of the predefined STATUS_LED_COLOR_* strings above
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"""
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return Psu.get_shared_led().get_status()
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def is_replaceable(self):
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"""
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Indicate whether this device is replaceable.
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Returns:
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bool: True if it is replaceable.
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"""
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return True
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def get_temperature(self):
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"""
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Retrieves current temperature reading from PSU
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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.get_powergood_status():
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temp = utils.read_int_from_file(self.psu_temp, log_func=logger.log_info)
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return float(temp) / 1000
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return None
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def get_temperature_high_threshold(self):
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"""
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Retrieves the high threshold temperature of PSU
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Returns:
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A float number, the high threshold temperature of PSU 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.get_powergood_status():
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temp_threshold = utils.read_int_from_file(self.psu_temp_threshold, log_func=logger.log_info)
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return float(temp_threshold) / 1000
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return None
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@utils.default_return(None)
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def get_voltage_high_threshold(self):
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"""
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Retrieves the high threshold PSU voltage output
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Returns:
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A float number, the high threshold output voltage in volts,
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e.g. 12.1
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Notes:
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The thresholds of voltage are not supported on all platforms.
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So we have to check capability first.
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"""
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if self.psu_voltage_capability and self.psu_voltage_max and self.get_powergood_status():
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capability = utils.read_str_from_file(self.psu_voltage_capability)
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if 'max' in capability:
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max_voltage = utils.read_int_from_file(self.psu_voltage_max, log_func=logger.log_info)
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max_voltage = InvalidPsuVolWA.run(self, max_voltage, self.psu_voltage_max)
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if max_voltage:
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return float(max_voltage) / 1000
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return None
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@utils.default_return(None)
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def get_voltage_low_threshold(self):
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"""
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Retrieves the low threshold PSU voltage output
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Returns:
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A float number, the low threshold output voltage in volts,
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e.g. 12.1
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Notes:
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The thresholds of voltage are not supported on all platforms.
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So we have to check capability first.
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"""
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if self.psu_voltage_capability and self.psu_voltage_min and self.get_powergood_status():
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capability = utils.read_str_from_file(self.psu_voltage_capability)
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if 'min' in capability:
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min_voltage = utils.read_int_from_file(self.psu_voltage_min, log_func=logger.log_info)
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min_voltage = InvalidPsuVolWA.run(self, min_voltage, self.psu_voltage_min)
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if min_voltage:
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return float(min_voltage) / 1000
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return None
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def get_maximum_supplied_power(self):
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"""
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Retrieves the maximum supplied power by PSU
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Returns:
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A float number, the maximum power output in Watts.
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e.g. 1200.1
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"""
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if self.psu_power_max and self.get_powergood_status():
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power_max = utils.read_int_from_file(self.psu_power_max, log_func=logger.log_info)
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return float(power_max) / 1000000
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else:
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return None
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def get_input_voltage(self):
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"""
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Retrieves current PSU voltage input
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Returns:
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A float number, the input voltage in volts,
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e.g. 12.1
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"""
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if self.get_powergood_status():
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voltage = utils.read_int_from_file(self.psu_voltage_in, log_func=logger.log_info)
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return float(voltage) / 1000
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return None
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def get_input_current(self):
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"""
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Retrieves the input current draw of the power supply
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Returns:
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A float number, the electric current in amperes, e.g 15.4
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"""
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if self.get_powergood_status():
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amperes = utils.read_int_from_file(self.psu_current_in, log_func=logger.log_info)
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return float(amperes) / 1000
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return None
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def get_psu_power_warning_suppress_threshold(self):
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"""
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Retrieve the warning suppress threshold of the power on this PSU
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The value can be volatile, so the caller should call the API each time it is used.
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On Mellanox platform, it is translated from the `warning threshold`
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The formula to calculate power warning threshold for a PSU
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amb_temp = min(port_amb, fan_amb)
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If amb_temp < ambient_temp_warning_threshold
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threshold = max capacity - slope
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else
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threshold = max capacity - slope * (1 + amb_temp - ambient_temp_threshold)
|
|
|
|
Returns:
|
|
A float number, the warning suppress threshold of the PSU in watts.
|
|
"""
|
|
if self.get_powergood_status():
|
|
if os.path.exists(self.psu_power_max_capacity):
|
|
power_max_capacity = utils.read_int_from_file(self.psu_power_max_capacity)
|
|
temp_warning_threshold = utils.read_int_from_file(Psu.AMBIENT_TEMP_WARNING_THRESHOLD)
|
|
fan_ambient_temp = utils.read_int_from_file(Psu.FAN_AMBIENT_TEMP)
|
|
port_ambient_temp = utils.read_int_from_file(Psu.PORT_AMBIENT_TEMP)
|
|
ambient_temp = min(fan_ambient_temp, port_ambient_temp)
|
|
slope = utils.read_int_from_file(self.psu_power_slope) * 1000
|
|
if ambient_temp < temp_warning_threshold:
|
|
power_warning_threshold = power_max_capacity - slope * 1000
|
|
else:
|
|
power_warning_threshold = power_max_capacity - (1000 + ambient_temp - temp_warning_threshold) * slope
|
|
if power_warning_threshold <= 0:
|
|
logger.log_warning('Got negative PSU power threshold {} for {}'.format(power_warning_threshold, self.get_name()))
|
|
power_warning_threshold = 0
|
|
return float(power_warning_threshold) / 1000000
|
|
|
|
return None
|
|
|
|
def get_psu_power_critical_threshold(self):
|
|
"""
|
|
Retrieve the critical threshold of the power on this PSU
|
|
The value can be volatile, so the caller should call the API each time it is used.
|
|
|
|
The formula to calculate power critical threshold for a PSU
|
|
amb_temp = min(port_amb, fan_amb)
|
|
If amb_temp < ambient_temp_critical_threshold
|
|
threshold = max capacity
|
|
else
|
|
threshold = max capacity - slope*(amb_temp - ambient_temp_critical_threshold)
|
|
|
|
Returns:
|
|
A float number, the critical threshold of the PSU in watts.
|
|
"""
|
|
if self.get_powergood_status():
|
|
if os.path.exists(self.psu_power_max_capacity):
|
|
power_max_capacity = utils.read_int_from_file(self.psu_power_max_capacity)
|
|
temp_critical_threshold = utils.read_int_from_file(Psu.AMBIENT_TEMP_CRITICAL_THRESHOLD)
|
|
fan_ambient_temp = utils.read_int_from_file(Psu.FAN_AMBIENT_TEMP)
|
|
port_ambient_temp = utils.read_int_from_file(Psu.PORT_AMBIENT_TEMP)
|
|
ambient_temp = min(fan_ambient_temp, port_ambient_temp)
|
|
if ambient_temp < temp_critical_threshold:
|
|
power_critical_threshold = power_max_capacity
|
|
else:
|
|
slope = utils.read_int_from_file(self.psu_power_slope) * 1000
|
|
power_critical_threshold = power_max_capacity - (ambient_temp - temp_critical_threshold) * slope
|
|
if power_critical_threshold <= 0:
|
|
logger.log_warning('Got negative PSU power threshold {} for {}'.format(power_critical_threshold, self.get_name()))
|
|
power_critical_threshold = 0
|
|
return float(power_critical_threshold) / 1000000
|
|
|
|
return None
|
|
|
|
|
|
class InvalidPsuVolWA:
|
|
"""This class is created as a workaround for a known hardware issue that the PSU voltage threshold could be a
|
|
invalid value 127998. Once we read a voltage threshold value equal to 127998, we should do following:
|
|
1. Check the PSU vendor, it should be Delta
|
|
2. Generate a temp sensor configuration file which contains a few set commands. Those set commands are the WA provided by low level team.
|
|
3. Call "sensors -s -c <tmp_conf_file>"
|
|
4. Wait for it to take effect
|
|
|
|
This issue is found on 3700, 3700c, 3800, 4600c
|
|
"""
|
|
|
|
INVALID_VOLTAGE_VALUE = 127998
|
|
EXPECT_VENDOR_NAME = 'DELTA'
|
|
EXPECT_CAPACITY = '1100'
|
|
EXPECT_PLATFORMS = ['x86_64-mlnx_msn3700-r0', 'x86_64-mlnx_msn3700c-r0', 'x86_64-mlnx_msn3800-r0', 'x86_64-mlnx_msn4600c-r0']
|
|
MFR_FIELD = 'MFR_NAME'
|
|
CAPACITY_FIELD = 'CAPACITY'
|
|
WAIT_TIME = 1
|
|
|
|
@classmethod
|
|
def run(cls, psu, threshold_value, threshold_file):
|
|
if threshold_value != cls.INVALID_VOLTAGE_VALUE:
|
|
# If the threshold value is not an invalid value, just return
|
|
return threshold_value
|
|
|
|
platform_name = DeviceDataManager.get_platform_name()
|
|
# Apply the WA to specified platforms
|
|
if platform_name not in cls.EXPECT_PLATFORMS:
|
|
# It is unlikely to go to this branch, so we log a warning here
|
|
logger.log_warning('PSU {} threshold file {} value {}, but platform is {}'.format(psu.index, threshold_file, threshold_value, platform_name))
|
|
return threshold_value
|
|
|
|
# Check PSU vendor, make sure it is DELTA
|
|
vendor_name = psu.vpd_parser.get_entry_value(cls.MFR_FIELD)
|
|
if vendor_name != 'N/A' and vendor_name != cls.EXPECT_VENDOR_NAME:
|
|
# It is unlikely to go to this branch, so we log a warning here
|
|
logger.log_warning('PSU {} threshold file {} value {}, but its vendor is {}'.format(psu.index, threshold_file, threshold_value, vendor_name))
|
|
return threshold_value
|
|
|
|
# Check PSU version, make sure it is 1100
|
|
capacity = psu.vpd_parser.get_entry_value(cls.CAPACITY_FIELD)
|
|
if capacity != 'N/A' and capacity != cls.EXPECT_CAPACITY:
|
|
logger.log_warning('PSU {} threshold file {} value {}, but its capacity is {}'.format(psu.index, threshold_file, threshold_value, capacity))
|
|
return threshold_value
|
|
|
|
# Run a sensors -s command to triger hardware to get the real threashold value
|
|
utils.run_command(['sensors', '-s'])
|
|
|
|
# Wait for the threshold value change
|
|
return cls.wait_set_done(threshold_file)
|
|
|
|
@classmethod
|
|
def wait_set_done(cls, threshold_file):
|
|
wait_time = cls.WAIT_TIME
|
|
while wait_time > 0:
|
|
value = utils.read_int_from_file(threshold_file, log_func=logger.log_info)
|
|
if value != cls.INVALID_VOLTAGE_VALUE:
|
|
return value
|
|
|
|
wait_time -= 1
|
|
time.sleep(1)
|
|
|
|
# It is enough to use warning here because user might power off/on the PSU which may cause threshold_file
|
|
# does not exist
|
|
logger.log_warning('sensors -s does not recover PSU threshold sensor after {} seconds'.format(cls.WAIT_TIME))
|
|
return None
|