sonic-buildimage/device/dell/x86_64-dellemc_s5296f_c3538-r0/plugins/sfputil.py

# sfputil.py
#
# Platform-specific SFP transceiver interface for SONiC
#
# For S5296F-ON, hardware version X01

try:
    import struct
    import time
    from sonic_sfp.sfputilbase import SfpUtilBase
    from os import *
    from mmap import *
    import io
    from sonic_sfp.sff8436 import sff8436InterfaceId
    from sonic_sfp.sff8436 import sff8436Dom
    from sonic_sfp.sff8472 import sff8472Dom

except ImportError as e:
    raise ImportError("%s - required module not found" % str(e))


# definitions of the offset and width for values in DOM info eeprom
QSFP_DOM_REV_OFFSET = 1
QSFP_DOM_REV_WIDTH = 1
QSFP_TEMPE_OFFSET = 22
QSFP_TEMPE_WIDTH = 2
QSFP_VOLT_OFFSET = 26
QSFP_VOLT_WIDTH = 2
QSFP_CHANNL_MON_OFFSET = 34
QSFP_CHANNL_MON_WIDTH = 16
QSFP_CHANNL_MON_WITH_TX_POWER_WIDTH = 24
QSFP_MODULE_THRESHOLD_OFFSET = 128
QSFP_MODULE_THRESHOLD_WIDTH = 24
QSFP_CHANNL_THRESHOLD_OFFSET = 176
QSFP_CHANNL_THRESHOLD_WIDTH = 16
QSFP_CHANNL_MON_MASK_OFFSET = 242
QSFP_CHANNL_MON_MASK_WIDTH = 4

SFP_TEMPE_OFFSET = 96
SFP_TEMPE_WIDTH = 2
SFP_VOLT_OFFSET = 98
SFP_VOLT_WIDTH = 2
SFP_MODULE_THRESHOLD_OFFSET = 0
SFP_MODULE_THRESHOLD_WIDTH = 56

XCVR_DOM_CAPABILITY_OFFSET = 92
XCVR_DOM_CAPABILITY_WIDTH = 1


class SfpUtil(SfpUtilBase):
    """Platform-specific SfpUtil class"""

    PORT_START = 1
    PORT_END = 104
    PORTS_IN_BLOCK = 104

    BASE_RES_PATH = "/sys/bus/pci/devices/0000:04:00.0/resource0"

    _port_to_eeprom_mapping = {}

    _global_port_pres_dict = {}

    @property
    def port_start(self):
        return self.PORT_START

    @property
    def port_end(self):
        return self.PORT_END

    @property
    def qsfp_ports(self):
        return list(range(97, self.PORTS_IN_BLOCK + 1))

    @property
    def port_to_eeprom_mapping(self):
        return self._port_to_eeprom_mapping

    def pci_mem_read(self, mm, offset):
        mm.seek(offset)
        read_data_stream = mm.read(4)
        reg_val = struct.unpack('I', read_data_stream)
        mem_val = str(reg_val)[1:-2]
        # print "reg_val read:%x"%reg_val
        return mem_val

    def pci_mem_write(self, mm, offset, data):
        mm.seek(offset)
        # print "data to write:%x"%data
        mm.write(struct.pack('I', data))

    def pci_set_value(self, resource, val, offset):
        fd = open(resource, O_RDWR)
        mm = mmap(fd, 0)
        val = self.pci_mem_write(mm, offset, val)
        mm.close()
        close(fd)
        return val

    def pci_get_value(self, resource, offset):
        fd = open(resource, O_RDWR)
        mm = mmap(fd, 0)
        val = self.pci_mem_read(mm, offset)
        mm.close()
        close(fd)
        return val

    def init_global_port_presence(self):
        for port_num in range(self.port_start, (self.port_end + 1)):
            presence = self.get_presence(port_num)
            if(presence):
                self._global_port_pres_dict[port_num] = '1'
            else:
                self._global_port_pres_dict[port_num] = '0'

    def __init__(self):
        eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom"

        for x in range(self.port_start, self.port_end + 1):
            self.port_to_eeprom_mapping[x] = eeprom_path.format(x + 1)
        self.init_global_port_presence()
        SfpUtilBase.__init__(self)

    def get_presence(self, port_num):
        # Check for invalid port_num
        if port_num < self.port_start or port_num > self.port_end:
            return False

        # Port offset starts with 0x4004
        port_offset = 16388 + ((port_num-1) * 16)

        status = self.pci_get_value(self.BASE_RES_PATH, port_offset)
        reg_value = int(status)

        # Absence of status throws error
        if (reg_value == ""):
            return False

        # Mask off bit for presence
        mask = (1 << 1)
        if (port_num > 96):
            mask = (1 << 4)

        # ModPrsL is active low
        if reg_value & mask == 0:
            return True

        return False

    def get_low_power_mode(self, port_num):

        # Check for invalid port_num
        if port_num < self.port_start or port_num > self.port_end:
            return False

        # Port offset starts with 0x4000
        port_offset = 16384 + ((port_num-1) * 16)

        status = self.pci_get_value(self.BASE_RES_PATH, port_offset)
        reg_value = int(status)

        # Absence of status throws error
        if (reg_value == ""):
            return False

        # Mask off 4th bit for presence
        mask = (1 << 6)

        # LPMode is active high
        if reg_value & mask == 0:
            return False

        return True

    def set_low_power_mode(self, port_num, lpmode):

        # Check for invalid port_num
        if port_num < self.port_start or port_num > self.port_end:
            return False

        # Port offset starts with 0x4000
        port_offset = 16384 + ((port_num-1) * 16)

        status = self.pci_get_value(self.BASE_RES_PATH, port_offset)
        reg_value = int(status)

        # Absence of status throws error
        if (reg_value == ""):
            return False

        # Mask off 4th bit for presence
        mask = (1 << 6)

        # LPMode is active high; set or clear the bit accordingly
        if lpmode is True:
            reg_value = reg_value | mask
        else:
            reg_value = reg_value & ~mask

        # Convert our register value back to a hex string and write back
        self.pci_set_value(self.BASE_RES_PATH, reg_value, port_offset)

        return True

    def reset(self, port_num):

        # Check for invalid port_num
        if port_num < self.port_start or port_num > self.port_end:
            return False

        # Port offset starts with 0x4000
        port_offset = 16384 + ((port_num-1) * 16)

        status = self.pci_get_value(self.BASE_RES_PATH, port_offset)
        reg_value = int(status)

        # Absence of status throws error
        if (reg_value == ""):
            return False

        # Mask off 4th bit for presence
        mask = (1 << 6)

        # ResetL is active low
        reg_value = reg_value & ~mask

        # Convert our register value back to a hex string and write back
        self.pci_set_value(self.BASE_RES_PATH, reg_value, port_offset)

        # Sleep 1 second to allow it to settle
        time.sleep(1)

        reg_value = reg_value | mask

        # Convert our register value back to a hex string and write back
        self.pci_set_value(self.BASE_RES_PATH, reg_value, port_offset)

        return True

    def get_transceiver_change_event(self, timeout=0):
        port_dict = {}
        sleep_time_ms = 500  # Poll interval, in milliseconds
        sleep_time = sleep_time_ms / 1000.0
        elapsed_time_ms = 0
        while True:
            for port_num in range(self.port_start, (self.port_end + 1)):
                presence = self.get_presence(port_num)
                if(presence and self._global_port_pres_dict[port_num] == '0'):
                    self._global_port_pres_dict[port_num] = '1'
                    port_dict[port_num] = '1'
                elif(not presence and
                     self._global_port_pres_dict[port_num] == '1'):
                    self._global_port_pres_dict[port_num] = '0'
                    port_dict[port_num] = '0'

                if(len(port_dict) > 0):
                    break

            if len(port_dict) > 0:
                break
            if timeout != 0:
                elapsed_time_ms += sleep_time_ms
                if elapsed_time_ms > timeout:
                    break
            time.sleep(sleep_time)

        return True, port_dict

    def get_transceiver_dom_info_dict(self, port_num):
        transceiver_dom_info_dict = {}

        dom_info_dict_keys = ['temperature', 'voltage',  'rx1power',
                              'rx2power',    'rx3power', 'rx4power',
                              'tx1bias',     'tx2bias',  'tx3bias',
                              'tx4bias',     'tx1power', 'tx2power',
                              'tx3power',    'tx4power',
                              ]
        transceiver_dom_info_dict = dict.fromkeys(dom_info_dict_keys, 'N/A')

        if port_num in self.qsfp_ports:
            offset = 0
            offset_xcvr = 128
            file_path = self._get_port_eeprom_path(port_num, self.IDENTITY_EEPROM_ADDR)
            if not self._sfp_eeprom_present(file_path, 0):
                return None

            try:
                sysfsfile_eeprom = io.open(file_path, mode="rb", buffering=0)
            except IOError:
                print("Error: reading sysfs file %s" % file_path)
                return None

            sfpd_obj = sff8436Dom()
            if sfpd_obj is None:
                return transceiver_dom_info_dict

            sfpi_obj = sff8436InterfaceId()
            if sfpi_obj is None:
                return transceiver_dom_info_dict

            # QSFP capability byte parse, through this byte can know whether it support tx_power or not.
            # TODO: in the future when decided to migrate to support SFF-8636 instead of SFF-8436,
            # need to add more code for determining the capability and version compliance
            # in SFF-8636 dom capability definitions evolving with the versions.
            qsfp_dom_capability_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom, (offset_xcvr + XCVR_DOM_CAPABILITY_OFFSET), XCVR_DOM_CAPABILITY_WIDTH)
            if qsfp_dom_capability_raw is not None:
                qspf_dom_capability_data = sfpi_obj.parse_dom_capability(qsfp_dom_capability_raw, 0)
            else:
                return transceiver_dom_info_dict

            dom_temperature_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom, (offset + QSFP_TEMPE_OFFSET), QSFP_TEMPE_WIDTH)
            if dom_temperature_raw is not None:
                dom_temperature_data = sfpd_obj.parse_temperature(dom_temperature_raw, 0)
            else:
                return transceiver_dom_info_dict

            dom_voltage_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom, (offset + QSFP_VOLT_OFFSET), QSFP_VOLT_WIDTH)
            if dom_voltage_raw is not None:
                dom_voltage_data = sfpd_obj.parse_voltage(dom_voltage_raw, 0)
            else:
                return transceiver_dom_info_dict

            qsfp_dom_rev_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom, (offset + QSFP_DOM_REV_OFFSET), QSFP_DOM_REV_WIDTH)
            if qsfp_dom_rev_raw is not None:
                qsfp_dom_rev_data = sfpd_obj.parse_sfp_dom_rev(qsfp_dom_rev_raw, 0)
            else:
                return transceiver_dom_info_dict

            transceiver_dom_info_dict['temperature'] = dom_temperature_data['data']['Temperature']['value']
            transceiver_dom_info_dict['voltage'] = dom_voltage_data['data']['Vcc']['value']

            # The tx_power monitoring is only available on QSFP which compliant with SFF-8636
            # and claimed that it support tx_power with one indicator bit.
            dom_channel_monitor_data = {}
            qsfp_dom_rev = qsfp_dom_rev_data['data']['dom_rev']['value']
            qsfp_tx_power_support = qspf_dom_capability_data['data']['Tx_power_support']['value']
            if (qsfp_dom_rev[0:8] != 'SFF-8636' or (qsfp_dom_rev[0:8] == 'SFF-8636' and qsfp_tx_power_support != 'on')):
                dom_channel_monitor_raw = self._read_eeprom_specific_bytes(
                    sysfsfile_eeprom, (offset + QSFP_CHANNL_MON_OFFSET), QSFP_CHANNL_MON_WIDTH)
                if dom_channel_monitor_raw is not None:
                    dom_channel_monitor_data = sfpd_obj.parse_channel_monitor_params(dom_channel_monitor_raw, 0)
                else:
                    return transceiver_dom_info_dict

                transceiver_dom_info_dict['tx1power'] = 'N/A'
                transceiver_dom_info_dict['tx2power'] = 'N/A'
                transceiver_dom_info_dict['tx3power'] = 'N/A'
                transceiver_dom_info_dict['tx4power'] = 'N/A'
            try:
                sysfsfile_eeprom.close()
            except IOError:
                print("Error: closing sysfs file %s" % file_path)
                return None

            transceiver_dom_info_dict['temperature'] = dom_temperature_data['data']['Temperature']['value']
            transceiver_dom_info_dict['voltage'] = dom_voltage_data['data']['Vcc']['value']
            transceiver_dom_info_dict['rx1power'] = dom_channel_monitor_data['data']['RX1Power']['value']
            transceiver_dom_info_dict['rx2power'] = dom_channel_monitor_data['data']['RX2Power']['value']
            transceiver_dom_info_dict['rx3power'] = dom_channel_monitor_data['data']['RX3Power']['value']
            transceiver_dom_info_dict['rx4power'] = dom_channel_monitor_data['data']['RX4Power']['value']
            transceiver_dom_info_dict['tx1bias'] = dom_channel_monitor_data['data']['TX1Bias']['value']
            transceiver_dom_info_dict['tx2bias'] = dom_channel_monitor_data['data']['TX2Bias']['value']
            transceiver_dom_info_dict['tx3bias'] = dom_channel_monitor_data['data']['TX3Bias']['value']
            transceiver_dom_info_dict['tx4bias'] = dom_channel_monitor_data['data']['TX4Bias']['value']

        else:
            offset = 256
            file_path = self._get_port_eeprom_path(port_num, self.DOM_EEPROM_ADDR)
            if not self._sfp_eeprom_present(file_path, 0):
                return None

        try:
            sysfsfile_eeprom = io.open(file_path, "rb", 0)
        except IOError:
            print("Error: reading sysfs file %s" % file_path)
            return None

        sfpd_obj = sff8472Dom(None, 1)
        if sfpd_obj is None:
            return None
        dom_temperature_raw = self._read_eeprom_specific_bytes(sysfsfile_eeprom, (offset + SFP_TEMPE_OFFSET),
                                                               SFP_TEMPE_WIDTH)
        if dom_temperature_raw is not None:
            dom_temperature_data = sfpd_obj.parse_temperature(dom_temperature_raw, 0)
        else:
            return transceiver_dom_info_dict

        dom_voltage_raw = self._read_eeprom_specific_bytes(sysfsfile_eeprom, (offset + SFP_VOLT_OFFSET),
                                                           SFP_VOLT_WIDTH)
        if dom_voltage_raw is not None:
            dom_voltage_data = sfpd_obj.parse_voltage(dom_voltage_raw, 0)
        else:
            return transceiver_dom_info_dict

        dom_channel_monitor_raw = self._read_eeprom_specific_bytes(sysfsfile_eeprom, (offset + SFP_MODULE_THRESHOLD_OFFSET),
                                                                   SFP_MODULE_THRESHOLD_WIDTH)
        if dom_channel_monitor_raw is not None:
            dom_channel_monitor_data = sfpd_obj.parse_channel_monitor_params(dom_channel_monitor_raw, 0)
        else:
            return transceiver_dom_info_dict

        try:
            sysfsfile_eeprom.close()
        except IOError:
            print("Error: closing sysfs file %s" % file_path)
            return None

        transceiver_dom_info_dict['temperature'] = dom_temperature_data['data']['Temperature']['value']
        transceiver_dom_info_dict['voltage'] = dom_voltage_data['data']['Vcc']['value']
        transceiver_dom_info_dict['rx1power'] = dom_channel_monitor_data['data']['RXPower']['value']
        transceiver_dom_info_dict['rx2power'] = 'N/A'
        transceiver_dom_info_dict['rx3power'] = 'N/A'
        transceiver_dom_info_dict['rx4power'] = 'N/A'
        transceiver_dom_info_dict['tx1bias'] = dom_channel_monitor_data['data']['TXBias']['value']
        transceiver_dom_info_dict['tx2bias'] = 'N/A'
        transceiver_dom_info_dict['tx3bias'] = 'N/A'
        transceiver_dom_info_dict['tx4bias'] = 'N/A'
        transceiver_dom_info_dict['tx1power'] = dom_channel_monitor_data['data']['TXPower']['value']
        transceiver_dom_info_dict['tx2power'] = 'N/A'
        transceiver_dom_info_dict['tx3power'] = 'N/A'
        transceiver_dom_info_dict['tx4power'] = 'N/A'

        return transceiver_dom_info_dict

    def get_transceiver_dom_threshold_info_dict(self, port_num):
        transceiver_dom_threshold_info_dict = {}
        dom_info_dict_keys = ['temphighalarm',    'temphighwarning',
                              'templowalarm',     'templowwarning',
                              'vcchighalarm',     'vcchighwarning',
                              'vcclowalarm',      'vcclowwarning',
                              'rxpowerhighalarm', 'rxpowerhighwarning',
                              'rxpowerlowalarm',  'rxpowerlowwarning',
                              'txpowerhighalarm', 'txpowerhighwarning',
                              'txpowerlowalarm',  'txpowerlowwarning',
                              'txbiashighalarm',  'txbiashighwarning',
                              'txbiaslowalarm',   'txbiaslowwarning'
                              ]
        transceiver_dom_threshold_info_dict = dict.fromkeys(dom_info_dict_keys, 'N/A')

        if port_num in self.qsfp_ports:
            file_path = self._get_port_eeprom_path(port_num, self.IDENTITY_EEPROM_ADDR)
            if not self._sfp_eeprom_present(file_path, 0):
                return None

            try:
                sysfsfile_eeprom = io.open(file_path, mode="rb", buffering=0)
            except IOError:
                print("Error: reading sysfs file %s" % file_path)
                return None

            sfpd_obj = sff8436Dom()
            if sfpd_obj is None:
                return transceiver_dom_threshold_info_dict

            # Dom Threshold data starts from offset 384
            # Revert offset back to 0 once data is retrieved
            offset = 384
            dom_module_threshold_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom,
                (offset + QSFP_MODULE_THRESHOLD_OFFSET),
                QSFP_MODULE_THRESHOLD_WIDTH)
            if dom_module_threshold_raw is not None:
                dom_module_threshold_data = sfpd_obj.parse_module_threshold_values(dom_module_threshold_raw, 0)
            else:
                return transceiver_dom_threshold_info_dict

            dom_channel_threshold_raw = self._read_eeprom_specific_bytes(
                sysfsfile_eeprom,
                (offset + QSFP_CHANNL_THRESHOLD_OFFSET),
                QSFP_CHANNL_THRESHOLD_WIDTH)
            if dom_channel_threshold_raw is not None:
                dom_channel_threshold_data = sfpd_obj.parse_channel_threshold_values(dom_channel_threshold_raw, 0)
            else:
                return transceiver_dom_threshold_info_dict

            try:
                sysfsfile_eeprom.close()
            except IOError:
                print("Error: closing sysfs file %s" % file_path)
                return None

            # Threshold Data
            transceiver_dom_threshold_info_dict['temphighalarm'] = dom_module_threshold_data['data']['TempHighAlarm']['value']
            transceiver_dom_threshold_info_dict['temphighwarning'] = dom_module_threshold_data['data']['TempHighWarning']['value']
            transceiver_dom_threshold_info_dict['templowalarm'] = dom_module_threshold_data['data']['TempLowAlarm']['value']
            transceiver_dom_threshold_info_dict['templowwarning'] = dom_module_threshold_data['data']['TempLowWarning']['value']
            transceiver_dom_threshold_info_dict['vcchighalarm'] = dom_module_threshold_data['data']['VccHighAlarm']['value']
            transceiver_dom_threshold_info_dict['vcchighwarning'] = dom_module_threshold_data['data']['VccHighWarning']['value']
            transceiver_dom_threshold_info_dict['vcclowalarm'] = dom_module_threshold_data['data']['VccLowAlarm']['value']
            transceiver_dom_threshold_info_dict['vcclowwarning'] = dom_module_threshold_data['data']['VccLowWarning']['value']
            transceiver_dom_threshold_info_dict['rxpowerhighalarm'] = dom_channel_threshold_data['data']['RxPowerHighAlarm']['value']
            transceiver_dom_threshold_info_dict['rxpowerhighwarning'] = dom_channel_threshold_data['data']['RxPowerHighWarning']['value']
            transceiver_dom_threshold_info_dict['rxpowerlowalarm'] = dom_channel_threshold_data['data']['RxPowerLowAlarm']['value']
            transceiver_dom_threshold_info_dict['rxpowerlowwarning'] = dom_channel_threshold_data['data']['RxPowerLowWarning']['value']
            transceiver_dom_threshold_info_dict['txbiashighalarm'] = dom_channel_threshold_data['data']['TxBiasHighAlarm']['value']
            transceiver_dom_threshold_info_dict['txbiashighwarning'] = dom_channel_threshold_data['data']['TxBiasHighWarning']['value']
            transceiver_dom_threshold_info_dict['txbiaslowalarm'] = dom_channel_threshold_data['data']['TxBiasLowAlarm']['value']
            transceiver_dom_threshold_info_dict['txbiaslowwarning'] = dom_channel_threshold_data['data']['TxBiasLowWarning']['value']

        else:
            offset = 256
            file_path = self._get_port_eeprom_path(port_num, self.DOM_EEPROM_ADDR)
            if not self._sfp_eeprom_present(file_path, 0):
                return None

            try:
                sysfsfile_eeprom = io.open(file_path, "rb", 0)
            except IOError:
                print("Error: reading sysfs file %s" % file_path)
                return None

            sfpd_obj = sff8472Dom(None, 1)
            if sfpd_obj is None:
                return transceiver_dom_threshold_info_dict

            dom_module_threshold_raw = self._read_eeprom_specific_bytes(sysfsfile_eeprom,
                                                                        (offset + SFP_MODULE_THRESHOLD_OFFSET), SFP_MODULE_THRESHOLD_WIDTH)

            if dom_module_threshold_raw is not None:
                dom_module_threshold_data = sfpd_obj.parse_alarm_warning_threshold(dom_module_threshold_raw, 0)
            else:
                return transceiver_dom_threshold_info_dict

            try:
                sysfsfile_eeprom.close()
            except IOError:
                print("Error: closing sysfs file %s" % file_path)
                return None

            # Threshold Data
            transceiver_dom_threshold_info_dict['temphighalarm'] = dom_module_threshold_data['data']['TempHighAlarm']['value']
            transceiver_dom_threshold_info_dict['templowalarm'] = dom_module_threshold_data['data']['TempLowAlarm']['value']
            transceiver_dom_threshold_info_dict['temphighwarning'] = dom_module_threshold_data['data']['TempHighWarning']['value']
            transceiver_dom_threshold_info_dict['templowwarning'] = dom_module_threshold_data['data']['TempLowWarning']['value']
            transceiver_dom_threshold_info_dict['vcchighalarm'] = dom_module_threshold_data['data']['VoltageHighAlarm']['value']
            transceiver_dom_threshold_info_dict['vcclowalarm'] = dom_module_threshold_data['data']['VoltageLowAlarm']['value']
            transceiver_dom_threshold_info_dict['vcchighwarning'] = dom_module_threshold_data['data']['VoltageHighWarning']['value']
            transceiver_dom_threshold_info_dict['vcclowwarning'] = dom_module_threshold_data['data']['VoltageLowWarning']['value']
            transceiver_dom_threshold_info_dict['txbiashighalarm'] = dom_module_threshold_data['data']['BiasHighAlarm']['value']
            transceiver_dom_threshold_info_dict['txbiaslowalarm'] = dom_module_threshold_data['data']['BiasLowAlarm']['value']
            transceiver_dom_threshold_info_dict['txbiashighwarning'] = dom_module_threshold_data['data']['BiasHighWarning']['value']
            transceiver_dom_threshold_info_dict['txbiaslowwarning'] = dom_module_threshold_data['data']['BiasLowWarning']['value']
            transceiver_dom_threshold_info_dict['txpowerhighalarm'] = dom_module_threshold_data['data']['TXPowerHighAlarm']['value']
            transceiver_dom_threshold_info_dict['txpowerlowalarm'] = dom_module_threshold_data['data']['TXPowerLowAlarm']['value']
            transceiver_dom_threshold_info_dict['txpowerhighwarning'] = dom_module_threshold_data['data']['TXPowerHighWarning']['value']
            transceiver_dom_threshold_info_dict['txpowerlowwarning'] = dom_module_threshold_data['data']['TXPowerLowWarning']['value']
            transceiver_dom_threshold_info_dict['rxpowerhighalarm'] = dom_module_threshold_data['data']['RXPowerHighAlarm']['value']
            transceiver_dom_threshold_info_dict['rxpowerlowalarm'] = dom_module_threshold_data['data']['RXPowerLowAlarm']['value']
            transceiver_dom_threshold_info_dict['rxpowerhighwarning'] = dom_module_threshold_data['data']['RXPowerHighWarning']['value']
            transceiver_dom_threshold_info_dict['rxpowerlowwarning'] = dom_module_threshold_data['data']['RXPowerLowWarning']['value']

        return transceiver_dom_threshold_info_dict