f550c86bd7
Why I did it sonic-sfp based sfp impl would be deprecated in future, change to sfp-refactor based implementation. How I did it Use the new sfp-refactor based sfp implementation for seastone. How to verify it Manual test sfp platform api or run sfp platform test cases.
364 lines
13 KiB
Python
364 lines
13 KiB
Python
#############################################################################
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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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try:
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import sys
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from sonic_platform_base.chassis_base import ChassisBase
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from sonic_platform_base.sonic_sfp.sfputilhelper import SfpUtilHelper
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from sonic_py_common import device_info
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from .event import SfpEvent
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from .helper import APIHelper
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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_PSU = 2
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NUM_THERMAL = 5
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NUM_SFP = 32
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NUM_COMPONENT = 6
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RESET_REGISTER = "0x103"
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HOST_REBOOT_CAUSE_PATH = "/host/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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GETREG_PATH = "/sys/devices/platform/dx010_cpld/getreg"
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STATUS_LED_PATH = "/sys/devices/platform/leds_dx010/leds/dx010:green:stat/brightness"
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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._api_helper = APIHelper()
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self.sfp_module_initialized = False
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self.__initialize_eeprom()
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self.is_host = self._api_helper.is_host()
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self.__initialize_fan()
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self.__initialize_psu()
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self.__initialize_thermals()
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self.__initialize_components()
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self.__initialize_system_led()
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def __initialize_sfp(self):
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sfputil_helper = SfpUtilHelper()
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port_config_file_path = device_info.get_path_to_port_config_file()
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sfputil_helper.read_porttab_mappings(port_config_file_path, 0)
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from sonic_platform.sfp_optoe import SfpOptoe
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for index in range(0, NUM_SFP):
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sfp = SfpOptoe(index, sfputil_helper.physical_to_logical[index + 1])
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self._sfp_list.append(sfp)
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self.sfp_module_initialized = True
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def __initialize_psu(self):
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from sonic_platform.psu import Psu
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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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def __initialize_fan(self):
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from sonic_platform.fan_drawer import FanDrawer
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for i in range(NUM_FAN_TRAY):
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fandrawer = FanDrawer(i)
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self._fan_drawer_list.append(fandrawer)
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self._fan_list.extend(fandrawer._fan_list)
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def __initialize_thermals(self):
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from sonic_platform.thermal import Thermal
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airflow = self.__get_air_flow()
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for index in range(0, NUM_THERMAL):
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thermal = Thermal(index, airflow)
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self._thermal_list.append(thermal)
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def __initialize_eeprom(self):
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from sonic_platform.eeprom import Tlv
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self._eeprom = Tlv()
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def __initialize_components(self):
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from sonic_platform.component import Component
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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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def __initialize_system_led(self):
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self.set_status_led(self.STATUS_LED_COLOR_GREEN)
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def __get_air_flow(self):
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air_flow_path = '/usr/share/sonic/device/{}/fan_airflow'.format(
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self._api_helper.platform) \
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if self.is_host else '/usr/share/sonic/platform/fan_airflow'
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air_flow = self._api_helper.read_one_line_file(air_flow_path)
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return air_flow or 'B2F'
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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_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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REBOOT_CAUSE_POWER_LOSS = "Power Loss"
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REBOOT_CAUSE_THERMAL_OVERLOAD_CPU = "Thermal Overload: CPU"
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REBOOT_CAUSE_THERMAL_OVERLOAD_ASIC = "Thermal Overload: ASIC"
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REBOOT_CAUSE_THERMAL_OVERLOAD_OTHER = "Thermal Overload: Other"
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REBOOT_CAUSE_INSUFFICIENT_FAN_SPEED = "Insufficient Fan Speed"
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REBOOT_CAUSE_WATCHDOG = "Watchdog"
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REBOOT_CAUSE_HARDWARE_OTHER = "Hardware - Other"
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REBOOT_CAUSE_NON_HARDWARE = "Non-Hardware"
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"""
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reboot_cause_path = (HOST_REBOOT_CAUSE_PATH + REBOOT_CAUSE_FILE)
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sw_reboot_cause = self._api_helper.read_txt_file(
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reboot_cause_path) or "Unknown"
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hw_reboot_cause = self._api_helper.get_cpld_reg_value(
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GETREG_PATH, RESET_REGISTER)
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prev_reboot_cause = {
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'0x11': (self.REBOOT_CAUSE_POWER_LOSS, 'Power on reset'),
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'0x22': (self.REBOOT_CAUSE_HARDWARE_OTHER, 'CPLD_WD_RESET'),
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'0x33': (self.REBOOT_CAUSE_HARDWARE_OTHER, 'Power cycle reset triggered by CPU'),
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'0x44': (self.REBOOT_CAUSE_HARDWARE_OTHER, 'Power cycle reset triggered by reset button'),
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'0x55': (self.REBOOT_CAUSE_THERMAL_OVERLOAD_CPU, ''),
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'0x66': (self.REBOOT_CAUSE_THERMAL_OVERLOAD_ASIC, ''),
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'0x77': (self.REBOOT_CAUSE_WATCHDOG, '')
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}.get(hw_reboot_cause, (self.REBOOT_CAUSE_HARDWARE_OTHER, 'Unknown reason'))
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if sw_reboot_cause != 'Unknown' and hw_reboot_cause == '0x11':
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prev_reboot_cause = (
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self.REBOOT_CAUSE_NON_HARDWARE, sw_reboot_cause)
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return prev_reboot_cause
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def get_change_event(self, timeout=0):
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"""
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Returns a nested dictionary containing all devices which have
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experienced a change at chassis level
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Args:
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timeout: Timeout in milliseconds (optional). If timeout == 0,
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this method will block until a change is detected.
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Returns:
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(bool, dict):
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- True if call successful, False if not;
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- A nested dictionary where key is a device type,
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value is a dictionary with key:value pairs in the format of
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{'device_id':'device_event'},
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where device_id is the device ID for this device and
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device_event,
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status='1' represents device inserted,
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status='0' represents device removed.
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Ex. {'fan':{'0':'0', '2':'1'}, 'sfp':{'11':'0'}}
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indicates that fan 0 has been removed, fan 2
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has been inserted and sfp 11 has been removed.
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"""
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# SFP event
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if not self.sfp_module_initialized:
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self.__initialize_sfp()
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sfp_event = SfpEvent(self._sfp_list).get_sfp_event(timeout)
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if sfp_event:
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return True, {'sfp': sfp_event}
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return False, {'sfp': {}}
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##############################################################
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######################## SFP methods #########################
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##############################################################
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def get_num_sfps(self):
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"""
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Retrieves the number of sfps available on this chassis
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Returns:
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An integer, the number of sfps available on this chassis
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"""
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if not self.sfp_module_initialized:
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self.__initialize_sfp()
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return len(self._sfp_list)
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def get_all_sfps(self):
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"""
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Retrieves all sfps available on this chassis
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Returns:
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A list of objects derived from SfpBase representing all sfps
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available on this chassis
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"""
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if not self.sfp_module_initialized:
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self.__initialize_sfp()
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return self._sfp_list
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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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if not self.sfp_module_initialized:
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self.__initialize_sfp()
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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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##############################################################
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####################### Other methods ########################
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##############################################################
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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_thermal_manager(self):
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from .thermal_manager import ThermalManager
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return ThermalManager
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##############################################################
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###################### Device methods ########################
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##############################################################
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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._eeprom.get_product_name()
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def get_presence(self):
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"""
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Retrieves the presence of the Chassis
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Returns:
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bool: True if Chassis is present, False if not
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"""
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return True
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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._eeprom.get_pn()
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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._eeprom.get_serial()
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def get_status(self):
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"""
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Retrieves the operational status of the device
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Returns:
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A boolean value, True if device is operating properly, False if not
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"""
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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. If the agent cannot determine the parent-relative position
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for some reason, or if the associated value of entPhysicalContainedIn is '0', then the value '-1' is returned
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Returns:
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integer: The 1-based relative physical position in parent device or -1 if cannot determine the position
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"""
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return -1
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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 initizalize_system_led(self):
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"""
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This function is not defined in chassis base class,
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system-health command would invoke chassis.initizalize_system_led(),
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add this stub function just to let the command sucessfully execute
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"""
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pass
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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 PSU status LED
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Note: Only support green and off
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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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"""
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set_status_str = {
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self.STATUS_LED_COLOR_GREEN: '1',
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self.STATUS_LED_COLOR_OFF: '0'
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}.get(color, None)
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if not set_status_str:
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return False
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return self._api_helper.write_txt_file(STATUS_LED_PATH, set_status_str)
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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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status = self._api_helper.read_txt_file(STATUS_LED_PATH)
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status_str = {
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'1': self.STATUS_LED_COLOR_GREEN,
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'0': self.STATUS_LED_COLOR_OFF
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}.get(status, None)
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return status_str
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