#!/usr/bin/env python ############################################################################# # Celestica # # Module contains an implementation of SONiC Platform Base API and # provides the fan status which are available in the platform # ############################################################################# import json import math import os.path try: from sonic_platform_base.fan_base import FanBase from helper import APIHelper except ImportError as e: raise ImportError(str(e) + "- required module not found") FAN_NAME_LIST = ["FAN-1F", "FAN-1R", "FAN-2F", "FAN-2R", "FAN-3F", "FAN-3R", "FAN-4F", "FAN-4R", "FAN-5F", "FAN-5R", "FAN-6F", "FAN-6R", "FAN-7F", "FAN-7R"] IPMI_OEM_NETFN = "0x3A" IPMI_SENSOR_NETFN = "0x04" IPMI_FAN_SPEED_CMD = "0x2D {}" IPMI_AIR_FLOW_CMD = "0x0A {}" IPMI_FAN_PRESENT_CMD = "0x06 0x03 {}" IPMI_SET_FAN_LED_CMD = "0x07 {} {}" IPMI_GET_FAN_LED_CMD = "0x08 {}" IPMI_SET_PWM = "0x03 0x01 0x02 {} {}" IPMI_FRU_PRINT_ID = "ipmitool fru print {}" IPMI_FRU_MODEL_KEY = "Board Part Number" IPMI_FRU_SERIAL_KEY = "Board Serial" MAX_OUTLET = 24700 MAX_INLET = 29700 SPEED_TOLERANCE = 10 FAN1_FRONT_SS_ID = "0x0D" FAN1_REAR_SS_ID = "0x45" FAN_LED_OFF_CMD = "0x00" FAN_LED_GREEN_CMD = "0x01" FAN_LED_RED_CMD = "0x02" FAN1_LED_CMD = "0x04" FAN_PWM_REGISTER_START = 0x22 FAN_PWM_REGISTER_STEP = 0x10 FAN1_FRU_ID = 6 class Fan(FanBase): """Platform-specific Fan class""" def __init__(self, fan_tray_index, fan_index=0, is_psu_fan=False, psu_index=0): self.fan_index = fan_index self.fan_tray_index = fan_tray_index self.is_psu_fan = is_psu_fan if self.is_psu_fan: self.psu_index = psu_index self._api_helper = APIHelper() self.index = self.fan_tray_index * 2 + self.fan_index def get_direction(self): """ Retrieves the direction of fan Returns: A string, either FAN_DIRECTION_INTAKE or FAN_DIRECTION_EXHAUST depending on fan direction """ direction = self.FAN_DIRECTION_EXHAUST status, raw_flow = self._api_helper.ipmi_raw( IPMI_OEM_NETFN, IPMI_AIR_FLOW_CMD.format(hex(self.fan_tray_index))) if status and raw_flow == "01": direction = self.FAN_DIRECTION_INTAKE return direction def get_speed(self): """ Retrieves the speed of fan as a percentage of full speed Returns: An integer, the percentage of full fan speed, in the range 0 (off) to 100 (full speed) Note: M = 150 Max F2B = 24700 RPM Max B2F = 29700 RPM """ # ipmitool raw 0x3a 0x03 0x01 0x01 {register} # register = 22 32 42 52 62 72 82 max_rpm = MAX_OUTLET if self.fan_index % 2 == 0 else MAX_INLET fan1_ss_start = FAN1_FRONT_SS_ID if self.fan_index % 2 == 0 else FAN1_REAR_SS_ID ss_id = hex(int(fan1_ss_start, 16) + self.fan_tray_index) status, raw_ss_read = self._api_helper.ipmi_raw( IPMI_SENSOR_NETFN, IPMI_FAN_SPEED_CMD.format(ss_id)) ss_read = raw_ss_read.split()[0] rpm_speed = int(ss_read, 16)*150 speed = int(float(rpm_speed)/max_rpm * 100) return speed def get_target_speed(self): """ Retrieves the target (expected) speed of the fan Returns: An integer, the percentage of full fan speed, in the range 0 (off) to 100 (full speed) Note: speed_pc = pwm_target/255*100 0 : when PWM mode is use pwm : when pwm mode is not use """ target = 0 return target def get_speed_tolerance(self): """ Retrieves the speed tolerance of the fan Returns: An integer, the percentage of variance from target speed which is considered tolerable """ return SPEED_TOLERANCE def set_speed(self, speed): """ Sets the fan speed Args: speed: An integer, the percentage of full fan speed to set fan to, in the range 0 (off) to 100 (full speed) Returns: A boolean, True if speed is set successfully, False if not Notes: pwm setting mode must set as Manual manual: ipmitool raw 0x3a 0x06 0x01 0x0 auto: ipmitool raw 0x3a 0x06 0x01 0x1 """ # ipmitool raw 0x3a 0x03 0x01 0x02 {register} {pwm_speed} # register = 22 32 42 52 62 72 82 speed_hex = hex(int(float(speed)/100 * 255)) fan_register_hex = hex(FAN_PWM_REGISTER_START + (self.fan_tray_index*FAN_PWM_REGISTER_STEP)) set_speed_cmd = IPMI_SET_PWM.format(fan_register_hex, speed_hex) status, set_speed_res = self._api_helper.ipmi_raw( IPMI_OEM_NETFN, set_speed_cmd) set_speed = False if not status else True return set_speed def set_status_led(self, color): """ Sets the state of the fan module status LED Args: color: A string representing the color with which to set the fan module status LED Returns: bool: True if status LED state is set successfully, False if not Note: LED setting mode must set as Manual manual: ipmitool raw 0x3A 0x09 0x02 0x00 auto: ipmitool raw 0x3A 0x09 0x02 0x01 """ led_cmd = { self.STATUS_LED_COLOR_GREEN: FAN_LED_GREEN_CMD, self.STATUS_LED_COLOR_RED: FAN_LED_RED_CMD, self.STATUS_LED_COLOR_OFF: FAN_LED_OFF_CMD }.get(color) fan_selector = hex(int(FAN1_LED_CMD, 16) + self.fan_tray_index) status, set_led = self._api_helper.ipmi_raw( IPMI_OEM_NETFN, IPMI_SET_FAN_LED_CMD.format(fan_selector, led_cmd)) set_status_led = False if not status else True return set_status_led def get_status_led(self): """ Gets the state of the fan status LED Returns: A string, one of the predefined STATUS_LED_COLOR_* strings above Note: STATUS_LED_COLOR_GREEN = "green" STATUS_LED_COLOR_AMBER = "amber" STATUS_LED_COLOR_RED = "red" STATUS_LED_COLOR_OFF = "off" """ fan_selector = hex(int(FAN1_LED_CMD, 16) + self.fan_tray_index) status, hx_color = self._api_helper.ipmi_raw( IPMI_OEM_NETFN, IPMI_GET_FAN_LED_CMD.format(fan_selector)) status_led = { "00": self.STATUS_LED_COLOR_OFF, "01": self.STATUS_LED_COLOR_GREEN, "02": self.STATUS_LED_COLOR_RED, }.get(hx_color, self.STATUS_LED_COLOR_OFF) return status_led def get_name(self): """ Retrieves the name of the device Returns: string: The name of the device """ fan_name = FAN_NAME_LIST[self.fan_tray_index*2 + self.fan_index] if not self.is_psu_fan else "PSU-{} FAN-{}".format( self.psu_index+1, self.fan_index+1) return fan_name def get_presence(self): """ Retrieves the presence of the FAN Returns: bool: True if FAN is present, False if not """ presence = False status, raw_present = self._api_helper.ipmi_raw( IPMI_OEM_NETFN, IPMI_FAN_PRESENT_CMD.format(hex(self.index))) if status and raw_present == "00": presence = True return presence def get_model(self): """ Retrieves the model number (or part number) of the device Returns: string: Model/part number of device """ model = "Unknown" ipmi_fru_idx = self.fan_tray_index + FAN1_FRU_ID status, raw_model = self._api_helper.ipmi_fru_id( ipmi_fru_idx, IPMI_FRU_MODEL_KEY) fru_pn_list = raw_model.split() if len(fru_pn_list) > 4: model = fru_pn_list[4] return model def get_serial(self): """ Retrieves the serial number of the device Returns: string: Serial number of device """ serial = "Unknown" ipmi_fru_idx = self.fan_tray_index + FAN1_FRU_ID status, raw_model = self._api_helper.ipmi_fru_id( ipmi_fru_idx, IPMI_FRU_SERIAL_KEY) fru_sr_list = raw_model.split() if len(fru_sr_list) > 3: serial = fru_sr_list[3] return serial def get_status(self): """ Retrieves the operational status of the device Returns: A boolean value, True if device is operating properly, False if not """ return self.get_presence() and self.get_speed() > 0