182 lines
6.3 KiB
Python
182 lines
6.3 KiB
Python
#!/usr/bin/env python
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#############################################################################
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# Celestica
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#
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# Module contains an implementation of SONiC Platform Base API and
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# provides the Chassis information which are available in the platform
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#
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#############################################################################
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import sys
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import re
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import os
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import subprocess
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import json
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try:
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from sonic_platform_base.chassis_base import ChassisBase
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from sonic_platform.fan import Fan
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from sonic_platform.psu import Psu
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from sonic_platform.component import Component
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from sonic_platform.thermal import Thermal
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from sonic_platform.sfp import Sfp
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from sonic_platform.eeprom import Tlv
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except ImportError as e:
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raise ImportError(str(e) + "- required module not found")
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NUM_FAN_TRAY = 5
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NUM_FAN = 2
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NUM_PSU = 2
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NUM_THERMAL = 5
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NUM_SFP = 32
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NUM_COMPONENT = 5
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RESET_REGISTER = "0x103"
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HOST_REBOOT_CAUSE_PATH = "/host/reboot-cause/"
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PMON_REBOOT_CAUSE_PATH = "/usr/share/sonic/platform/api_files/reboot-cause/"
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REBOOT_CAUSE_FILE = "reboot-cause.txt"
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PREV_REBOOT_CAUSE_FILE = "previous-reboot-cause.txt"
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HOST_CHK_CMD = "docker > /dev/null 2>&1"
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class Chassis(ChassisBase):
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"""Platform-specific Chassis class"""
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def __init__(self):
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ChassisBase.__init__(self)
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self.config_data = {}
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for fant_index in range(0, NUM_FAN_TRAY):
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for fan_index in range(0, NUM_FAN):
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fan = Fan(fant_index, fan_index)
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self._fan_list.append(fan)
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for index in range(0, NUM_PSU):
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psu = Psu(index)
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self._psu_list.append(psu)
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for index in range(0, NUM_THERMAL):
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thermal = Thermal(index)
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self._thermal_list.append(thermal)
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# sfp index start from 1
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for index in range(0, NUM_SFP):
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sfp = Sfp(index)
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self._sfp_list.append(sfp)
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for index in range(0, NUM_COMPONENT):
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component = Component(index)
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self._component_list.append(component)
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self._eeprom = Tlv()
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def __is_host(self):
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return os.system(HOST_CHK_CMD) == 0
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def __read_txt_file(self, file_path):
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try:
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with open(file_path, 'r') as fd:
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data = fd.read()
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return data.strip()
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except IOError:
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pass
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return None
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def get_base_mac(self):
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"""
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Retrieves the base MAC address for the chassis
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Returns:
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A string containing the MAC address in the format
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'XX:XX:XX:XX:XX:XX'
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"""
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return self._eeprom.get_mac()
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def get_serial_number(self):
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"""
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Retrieves the hardware serial number for the chassis
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Returns:
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A string containing the hardware serial number for this chassis.
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"""
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return self._eeprom.get_serial()
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def get_system_eeprom_info(self):
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"""
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Retrieves the full content of system EEPROM information for the chassis
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Returns:
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A dictionary where keys are the type code defined in
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OCP ONIE TlvInfo EEPROM format and values are their corresponding
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values.
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"""
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return self._eeprom.get_eeprom()
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def get_reboot_cause(self):
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"""
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Retrieves the cause of the previous reboot
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Returns:
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A tuple (string, string) where the first element is a string
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containing the cause of the previous reboot. This string must be
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one of the predefined strings in this class. If the first string
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is "REBOOT_CAUSE_HARDWARE_OTHER", the second string can be used
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to pass a description of the reboot cause.
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"""
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description = 'None'
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reboot_cause = self.REBOOT_CAUSE_HARDWARE_OTHER
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reboot_cause_path = (HOST_REBOOT_CAUSE_PATH + REBOOT_CAUSE_FILE) if self.__is_host(
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) else PMON_REBOOT_CAUSE_PATH + REBOOT_CAUSE_FILE
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prev_reboot_cause_path = (HOST_REBOOT_CAUSE_PATH + PREV_REBOOT_CAUSE_FILE) if self.__is_host(
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) else PMON_REBOOT_CAUSE_PATH + PREV_REBOOT_CAUSE_FILE
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hw_reboot_cause = self._component_list[0].get_register_value(RESET_REGISTER)
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sw_reboot_cause = self.__read_txt_file(
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reboot_cause_path) or "Unknown"
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prev_sw_reboot_cause = self.__read_txt_file(
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prev_reboot_cause_path) or "Unknown"
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if sw_reboot_cause == "Unknown" and (prev_sw_reboot_cause == "Unknown" or prev_sw_reboot_cause == self.REBOOT_CAUSE_POWER_LOSS) and hw_reboot_cause == "0x11":
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reboot_cause = self.REBOOT_CAUSE_POWER_LOSS
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elif sw_reboot_cause != "Unknown" and hw_reboot_cause == "0x11":
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reboot_cause = self.REBOOT_CAUSE_NON_HARDWARE
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description = sw_reboot_cause
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elif prev_reboot_cause_path != "Unknown" and hw_reboot_cause == "0x11":
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reboot_cause = self.REBOOT_CAUSE_NON_HARDWARE
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description = prev_sw_reboot_cause
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elif hw_reboot_cause == "0x22":
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reboot_cause = self.REBOOT_CAUSE_WATCHDOG,
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else:
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reboot_cause = self.REBOOT_CAUSE_HARDWARE_OTHER
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description = 'Unknown reason'
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return (reboot_cause, description)
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def get_watchdog(self):
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"""
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Retreives hardware watchdog device on this chassis
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Returns:
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An object derived from WatchdogBase representing the hardware
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watchdog device
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"""
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if self._watchdog is None:
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from sonic_platform.watchdog import Watchdog
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self._watchdog = Watchdog()
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return self._watchdog
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def get_sfp(self, index):
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"""
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Retrieves sfp represented by (1-based) index <index>
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Args:
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index: An integer, the index (1-based) of the sfp to retrieve.
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The index should be the sequence of a physical port in a chassis,
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starting from 1.
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For example, 1 for Ethernet0, 2 for Ethernet4 and so on.
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Returns:
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An object dervied from SfpBase representing the specified sfp
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"""
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sfp = None
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try:
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# The index will start from 1
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sfp = self._sfp_list[index-1]
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except IndexError:
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sys.stderr.write("SFP index {} out of range (1-{})\n".format(
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index, len(self._sfp_list)))
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return sfp
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