sonic-buildimage/device/celestica/x86_64-cel_e1031-r0/sonic_platform/sfp.py
Wirut Getbamrung a5a11f6e7d
[device/celestica]: Fix xcvrd error (#3979) (#4345)
* [device/celestica]: add pmon_daemon_control config

* [device/celestica]:  update sfp index follow port_config

* [device/celestica]:  update get_watchdog to avoid multiple daemon try opening watchdog
2020-04-01 01:24:55 -07:00

718 lines
33 KiB
Python

#!/usr/bin/env python
#############################################################################
# Celestica
#
# Sfp contains an implementation of SONiC Platform Base API and
# provides the sfp device status which are available in the platform
#
#############################################################################
import os
import time
import subprocess
import sonic_device_util
from ctypes import create_string_buffer
try:
from sonic_platform_base.sfp_base import SfpBase
from sonic_platform_base.sonic_sfp.sff8472 import sff8472Dom
from sonic_platform_base.sonic_sfp.sff8472 import sff8472InterfaceId
from sonic_platform_base.sonic_sfp.sff8472 import sffbase
from sonic_platform_base.sonic_sfp.sfputilhelper import SfpUtilHelper
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
INFO_OFFSET = 0
DOM_OFFSET = 256
XCVR_INTFACE_BULK_OFFSET = 0
XCVR_INTFACE_BULK_WIDTH_SFP = 21
XCVR_VENDOR_NAME_OFFSET = 20
XCVR_VENDOR_NAME_WIDTH = 16
XCVR_VENDOR_OUI_OFFSET = 37
XCVR_VENDOR_OUI_WIDTH = 3
XCVR_VENDOR_PN_OFFSET = 40
XCVR_VENDOR_PN_WIDTH = 16
XCVR_HW_REV_OFFSET = 56
XCVR_HW_REV_WIDTH_SFP = 4
XCVR_VENDOR_SN_OFFSET = 68
XCVR_VENDOR_SN_WIDTH = 16
XCVR_VENDOR_DATE_OFFSET = 84
XCVR_VENDOR_DATE_WIDTH = 8
XCVR_DOM_CAPABILITY_OFFSET = 92
XCVR_DOM_CAPABILITY_WIDTH = 1
# Offset for values in SFP eeprom
SFP_TEMPE_OFFSET = 96
SFP_TEMPE_WIDTH = 2
SFP_VOLT_OFFSET = 98
SFP_VOLT_WIDTH = 2
SFP_CHANNL_MON_OFFSET = 100
SFP_CHANNL_MON_WIDTH = 6
SFP_MODULE_THRESHOLD_OFFSET = 0
SFP_MODULE_THRESHOLD_WIDTH = 40
SFP_CHANNL_THRESHOLD_OFFSET = 112
SFP_CHANNL_THRESHOLD_WIDTH = 2
SFP_STATUS_CONTROL_OFFSET = 110
SFP_STATUS_CONTROL_WIDTH = 1
SFP_TX_DISABLE_HARD_BIT = 7
SFP_TX_DISABLE_SOFT_BIT = 6
sfp_cable_length_tup = ('LengthSMFkm-UnitsOfKm', 'LengthSMF(UnitsOf100m)',
'Length50um(UnitsOf10m)', 'Length62.5um(UnitsOfm)',
'LengthCable(UnitsOfm)', 'LengthOM3(UnitsOf10m)')
sfp_compliance_code_tup = ('10GEthernetComplianceCode', 'InfinibandComplianceCode',
'ESCONComplianceCodes', 'SONETComplianceCodes',
'EthernetComplianceCodes', 'FibreChannelLinkLength',
'FibreChannelTechnology', 'SFP+CableTechnology',
'FibreChannelTransmissionMedia', 'FibreChannelSpeed')
class Sfp(SfpBase):
"""Platform-specific Sfp class"""
# Port number
PORT_START = 1
PORT_END = 52
port_to_i2c_mapping = {
49: 15,
50: 14,
51: 17,
52: 16
}
_sfp_port = range(49, PORT_END + 1)
PRS_PATH = "/sys/devices/platform/e1031.smc/SFP/sfp_modabs"
PLATFORM_ROOT_PATH = '/usr/share/sonic/device'
PMON_HWSKU_PATH = '/usr/share/sonic/hwsku'
HOST_CHK_CMD = "docker > /dev/null 2>&1"
PLATFORM = "x86_64-cel_e1031-r0"
HWSKU = "Celestica-E1031-T48S4"
def __init__(self, sfp_index):
# Init index
self.index = sfp_index
self.port_num = self.index
# Init eeprom path
eeprom_path = '/sys/bus/i2c/devices/i2c-{0}/{0}-0050/eeprom'
self.port_to_eeprom_mapping = {}
for x in range(self.PORT_START, self.PORT_END + 1):
if x not in self._sfp_port:
self.port_to_i2c_mapping[x] = None
self.port_to_eeprom_mapping[x] = eeprom_path.format(
self.port_to_i2c_mapping[x])
self.info_dict_keys = ['type', 'hardwarerev', 'serialnum', 'manufacturename', 'modelname', 'Connector', 'encoding', 'ext_identifier',
'ext_rateselect_compliance', 'cable_type', 'cable_length', 'nominal_bit_rate', 'specification_compliance', 'vendor_date', 'vendor_oui']
self.dom_dict_keys = ['rx_los', 'tx_fault', 'reset_status', 'power_lpmode', 'tx_disable', 'tx_disable_channel', 'temperature', 'voltage',
'rx1power', 'rx2power', 'rx3power', 'rx4power', 'tx1bias', 'tx2bias', 'tx3bias', 'tx4bias', 'tx1power', 'tx2power', 'tx3power', 'tx4power']
self.threshold_dict_keys = ['temphighalarm', 'temphighwarning', 'templowalarm', 'templowwarning', 'vcchighalarm', 'vcchighwarning', 'vcclowalarm', 'vcclowwarning', 'rxpowerhighalarm', 'rxpowerhighwarning',
'rxpowerlowalarm', 'rxpowerlowwarning', 'txpowerhighalarm', 'txpowerhighwarning', 'txpowerlowalarm', 'txpowerlowwarning', 'txbiashighalarm', 'txbiashighwarning', 'txbiaslowalarm', 'txbiaslowwarning']
SfpBase.__init__(self)
def _convert_string_to_num(self, value_str):
if "-inf" in value_str:
return 'N/A'
elif "Unknown" in value_str:
return 'N/A'
elif 'dBm' in value_str:
t_str = value_str.rstrip('dBm')
return float(t_str)
elif 'mA' in value_str:
t_str = value_str.rstrip('mA')
return float(t_str)
elif 'C' in value_str:
t_str = value_str.rstrip('C')
return float(t_str)
elif 'Volts' in value_str:
t_str = value_str.rstrip('Volts')
return float(t_str)
else:
return 'N/A'
def __read_txt_file(self, file_path):
try:
with open(file_path, 'r') as fd:
data = fd.read()
return data.strip()
except IOError:
pass
return ""
def __is_host(self):
return os.system(self.HOST_CHK_CMD) == 0
def __get_path_to_port_config_file(self):
platform_path = "/".join([self.PLATFORM_ROOT_PATH, self.PLATFORM])
hwsku_path = "/".join([platform_path, self.HWSKU]
) if self.__is_host() else self.PMON_HWSKU_PATH
return "/".join([hwsku_path, "port_config.ini"])
def __read_eeprom_specific_bytes(self, offset, num_bytes):
sysfsfile_eeprom = None
eeprom_raw = []
for i in range(0, num_bytes):
eeprom_raw.append("0x00")
sysfs_sfp_i2c_client_eeprom_path = self.port_to_eeprom_mapping[self.port_num]
try:
sysfsfile_eeprom = open(
sysfs_sfp_i2c_client_eeprom_path, mode="rb", buffering=0)
sysfsfile_eeprom.seek(offset)
raw = sysfsfile_eeprom.read(num_bytes)
for n in range(0, num_bytes):
eeprom_raw[n] = hex(ord(raw[n]))[2:].zfill(2)
except:
pass
finally:
if sysfsfile_eeprom:
sysfsfile_eeprom.close()
return eeprom_raw
def get_transceiver_info(self):
"""
Retrieves transceiver info of this SFP
Returns:
A dict which contains following keys/values :
========================================================================
keys |Value Format |Information
---------------------------|---------------|----------------------------
type |1*255VCHAR |type of SFP
hardwarerev |1*255VCHAR |hardware version of SFP
serialnum |1*255VCHAR |serial number of the SFP
manufacturename |1*255VCHAR |SFP vendor name
modelname |1*255VCHAR |SFP model name
Connector |1*255VCHAR |connector information
encoding |1*255VCHAR |encoding information
ext_identifier |1*255VCHAR |extend identifier
ext_rateselect_compliance |1*255VCHAR |extended rateSelect compliance
cable_length |INT |cable length in m
nominal_bit_rate |INT |nominal bit rate by 100Mbs
specification_compliance |1*255VCHAR |specification compliance
vendor_date |1*255VCHAR |vendor date
vendor_oui |1*255VCHAR |vendor OUI
========================================================================
"""
# check present status
sfpi_obj = sff8472InterfaceId()
if not self.get_presence() or not sfpi_obj:
return {}
offset = INFO_OFFSET
sfp_interface_bulk_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_INTFACE_BULK_OFFSET), XCVR_INTFACE_BULK_WIDTH_SFP)
sfp_interface_bulk_data = sfpi_obj.parse_sfp_info_bulk(
sfp_interface_bulk_raw, 0)
sfp_vendor_name_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_VENDOR_NAME_OFFSET), XCVR_VENDOR_NAME_WIDTH)
sfp_vendor_name_data = sfpi_obj.parse_vendor_name(
sfp_vendor_name_raw, 0)
sfp_vendor_pn_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_VENDOR_PN_OFFSET), XCVR_VENDOR_PN_WIDTH)
sfp_vendor_pn_data = sfpi_obj.parse_vendor_pn(
sfp_vendor_pn_raw, 0)
sfp_vendor_rev_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_HW_REV_OFFSET), XCVR_HW_REV_WIDTH_SFP)
sfp_vendor_rev_data = sfpi_obj.parse_vendor_rev(
sfp_vendor_rev_raw, 0)
sfp_vendor_sn_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_VENDOR_SN_OFFSET), XCVR_VENDOR_SN_WIDTH)
sfp_vendor_sn_data = sfpi_obj.parse_vendor_sn(
sfp_vendor_sn_raw, 0)
sfp_vendor_oui_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_VENDOR_OUI_OFFSET), XCVR_VENDOR_OUI_WIDTH)
if sfp_vendor_oui_raw is not None:
sfp_vendor_oui_data = sfpi_obj.parse_vendor_oui(
sfp_vendor_oui_raw, 0)
sfp_vendor_date_raw = self.__read_eeprom_specific_bytes(
(offset + XCVR_VENDOR_DATE_OFFSET), XCVR_VENDOR_DATE_WIDTH)
sfp_vendor_date_data = sfpi_obj.parse_vendor_date(
sfp_vendor_date_raw, 0)
transceiver_info_dict = dict.fromkeys(self.info_dict_keys, 'N/A')
compliance_code_dict = dict()
if sfp_interface_bulk_data:
transceiver_info_dict['type'] = sfp_interface_bulk_data['data']['type']['value']
transceiver_info_dict['Connector'] = sfp_interface_bulk_data['data']['Connector']['value']
transceiver_info_dict['encoding'] = sfp_interface_bulk_data['data']['EncodingCodes']['value']
transceiver_info_dict['ext_identifier'] = sfp_interface_bulk_data['data']['Extended Identifier']['value']
transceiver_info_dict['ext_rateselect_compliance'] = sfp_interface_bulk_data['data']['RateIdentifier']['value']
transceiver_info_dict['type_abbrv_name'] = sfp_interface_bulk_data['data']['type_abbrv_name']['value']
transceiver_info_dict['manufacturename'] = sfp_vendor_name_data[
'data']['Vendor Name']['value'] if sfp_vendor_name_data else 'N/A'
transceiver_info_dict['modelname'] = sfp_vendor_pn_data['data']['Vendor PN']['value'] if sfp_vendor_pn_data else 'N/A'
transceiver_info_dict['hardwarerev'] = sfp_vendor_rev_data['data']['Vendor Rev']['value'] if sfp_vendor_rev_data else 'N/A'
transceiver_info_dict['serialnum'] = sfp_vendor_sn_data['data']['Vendor SN']['value'] if sfp_vendor_sn_data else 'N/A'
transceiver_info_dict['vendor_oui'] = sfp_vendor_oui_data['data']['Vendor OUI']['value'] if sfp_vendor_oui_data else 'N/A'
transceiver_info_dict['vendor_date'] = sfp_vendor_date_data[
'data']['VendorDataCode(YYYY-MM-DD Lot)']['value'] if sfp_vendor_date_data else 'N/A'
transceiver_info_dict['cable_type'] = "Unknown"
transceiver_info_dict['cable_length'] = "Unknown"
for key in sfp_cable_length_tup:
if key in sfp_interface_bulk_data['data']:
transceiver_info_dict['cable_type'] = key
transceiver_info_dict['cable_length'] = str(
sfp_interface_bulk_data['data'][key]['value'])
for key in sfp_compliance_code_tup:
if key in sfp_interface_bulk_data['data']['Specification compliance']['value']:
compliance_code_dict[key] = sfp_interface_bulk_data['data']['Specification compliance']['value'][key]['value']
transceiver_info_dict['specification_compliance'] = str(
compliance_code_dict)
transceiver_info_dict['nominal_bit_rate'] = str(
sfp_interface_bulk_data['data']['NominalSignallingRate(UnitsOf100Mbd)']['value'])
return transceiver_info_dict
def get_transceiver_bulk_status(self):
"""
Retrieves transceiver bulk status of this SFP
Returns:
A dict which contains following keys/values :
========================================================================
keys |Value Format |Information
---------------------------|---------------|----------------------------
rx_los |BOOLEAN |RX loss-of-signal status, True if has RX los, False if not.
tx_fault |BOOLEAN |TX fault status, True if has TX fault, False if not.
reset_status |BOOLEAN |reset status, True if SFP in reset, False if not.
lp_mode |BOOLEAN |low power mode status, True in lp mode, False if not.
tx_disable |BOOLEAN |TX disable status, True TX disabled, False if not.
tx_disabled_channel |HEX |disabled TX channels in hex, bits 0 to 3 represent channel 0
| |to channel 3.
temperature |INT |module temperature in Celsius
voltage |INT |supply voltage in mV
tx<n>bias |INT |TX Bias Current in mA, n is the channel number,
| |for example, tx2bias stands for tx bias of channel 2.
rx<n>power |INT |received optical power in mW, n is the channel number,
| |for example, rx2power stands for rx power of channel 2.
tx<n>power |INT |TX output power in mW, n is the channel number,
| |for example, tx2power stands for tx power of channel 2.
========================================================================
"""
# check present status
sfpd_obj = sff8472Dom()
if not self.get_presence() or not sfpd_obj:
return {}
eeprom_ifraw = self.__read_eeprom_specific_bytes(0, DOM_OFFSET)
sfpi_obj = sff8472InterfaceId(eeprom_ifraw)
cal_type = sfpi_obj.get_calibration_type()
sfpd_obj._calibration_type = cal_type
offset = DOM_OFFSET
transceiver_dom_info_dict = dict.fromkeys(self.dom_dict_keys, 'N/A')
dom_temperature_raw = self.__read_eeprom_specific_bytes(
(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)
transceiver_dom_info_dict['temperature'] = dom_temperature_data['data']['Temperature']['value']
dom_voltage_raw = self.__read_eeprom_specific_bytes(
(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)
transceiver_dom_info_dict['voltage'] = dom_voltage_data['data']['Vcc']['value']
dom_channel_monitor_raw = self.__read_eeprom_specific_bytes(
(offset + SFP_CHANNL_MON_OFFSET), SFP_CHANNL_MON_WIDTH)
if dom_channel_monitor_raw is not None:
dom_voltage_data = sfpd_obj.parse_channel_monitor_params(
dom_channel_monitor_raw, 0)
transceiver_dom_info_dict['tx1power'] = dom_voltage_data['data']['TXPower']['value']
transceiver_dom_info_dict['rx1power'] = dom_voltage_data['data']['RXPower']['value']
transceiver_dom_info_dict['tx1bias'] = dom_voltage_data['data']['TXBias']['value']
for key in transceiver_dom_info_dict:
transceiver_dom_info_dict[key] = self._convert_string_to_num(
transceiver_dom_info_dict[key])
transceiver_dom_info_dict['rx_los'] = self.get_rx_los()
transceiver_dom_info_dict['tx_fault'] = self.get_tx_fault()
transceiver_dom_info_dict['reset_status'] = self.get_reset_status()
transceiver_dom_info_dict['lp_mode'] = self.get_lpmode()
return transceiver_dom_info_dict
def get_transceiver_threshold_info(self):
"""
Retrieves transceiver threshold info of this SFP
Returns:
A dict which contains following keys/values :
========================================================================
keys |Value Format |Information
---------------------------|---------------|----------------------------
temphighalarm |FLOAT |High Alarm Threshold value of temperature in Celsius.
templowalarm |FLOAT |Low Alarm Threshold value of temperature in Celsius.
temphighwarning |FLOAT |High Warning Threshold value of temperature in Celsius.
templowwarning |FLOAT |Low Warning Threshold value of temperature in Celsius.
vcchighalarm |FLOAT |High Alarm Threshold value of supply voltage in mV.
vcclowalarm |FLOAT |Low Alarm Threshold value of supply voltage in mV.
vcchighwarning |FLOAT |High Warning Threshold value of supply voltage in mV.
vcclowwarning |FLOAT |Low Warning Threshold value of supply voltage in mV.
rxpowerhighalarm |FLOAT |High Alarm Threshold value of received power in dBm.
rxpowerlowalarm |FLOAT |Low Alarm Threshold value of received power in dBm.
rxpowerhighwarning |FLOAT |High Warning Threshold value of received power in dBm.
rxpowerlowwarning |FLOAT |Low Warning Threshold value of received power in dBm.
txpowerhighalarm |FLOAT |High Alarm Threshold value of transmit power in dBm.
txpowerlowalarm |FLOAT |Low Alarm Threshold value of transmit power in dBm.
txpowerhighwarning |FLOAT |High Warning Threshold value of transmit power in dBm.
txpowerlowwarning |FLOAT |Low Warning Threshold value of transmit power in dBm.
txbiashighalarm |FLOAT |High Alarm Threshold value of tx Bias Current in mA.
txbiaslowalarm |FLOAT |Low Alarm Threshold value of tx Bias Current in mA.
txbiashighwarning |FLOAT |High Warning Threshold value of tx Bias Current in mA.
txbiaslowwarning |FLOAT |Low Warning Threshold value of tx Bias Current in mA.
========================================================================
"""
# check present status
sfpd_obj = sff8472Dom()
if not self.get_presence() and not sfpd_obj:
return {}
eeprom_ifraw = self.__read_eeprom_specific_bytes(0, DOM_OFFSET)
sfpi_obj = sff8472InterfaceId(eeprom_ifraw)
cal_type = sfpi_obj.get_calibration_type()
sfpd_obj._calibration_type = cal_type
offset = DOM_OFFSET
transceiver_dom_threshold_info_dict = dict.fromkeys(
self.threshold_dict_keys, 'N/A')
dom_module_threshold_raw = self.__read_eeprom_specific_bytes(
(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)
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']
for key in transceiver_dom_threshold_info_dict:
transceiver_dom_threshold_info_dict[key] = self._convert_string_to_num(
transceiver_dom_threshold_info_dict[key])
return transceiver_dom_threshold_info_dict
def get_reset_status(self):
"""
Retrieves the reset status of SFP
Returns:
A Boolean, True if reset enabled, False if disabled
"""
# SFP doesn't support this feature
return False
def get_rx_los(self):
"""
Retrieves the RX LOS (lost-of-signal) status of SFP
Returns:
A Boolean, True if SFP has RX LOS, False if not.
Note : RX LOS status is latched until a call to get_rx_los or a reset.
"""
rx_los = False
status_control_raw = self.__read_eeprom_specific_bytes(
SFP_STATUS_CONTROL_OFFSET, SFP_STATUS_CONTROL_WIDTH)
if status_control_raw:
data = int(status_control_raw[0], 16)
rx_los = (sffbase().test_bit(data, 1) != 0)
return rx_los
def get_tx_fault(self):
"""
Retrieves the TX fault status of SFP
Returns:
A Boolean, True if SFP has TX fault, False if not
Note : TX fault status is lached until a call to get_tx_fault or a reset.
"""
tx_fault = False
status_control_raw = self.__read_eeprom_specific_bytes(
SFP_STATUS_CONTROL_OFFSET, SFP_STATUS_CONTROL_WIDTH)
if status_control_raw:
data = int(status_control_raw[0], 16)
tx_fault = (sffbase().test_bit(data, 2) != 0)
return tx_fault
def get_tx_disable(self):
"""
Retrieves the tx_disable status of this SFP
Returns:
A Boolean, True if tx_disable is enabled, False if disabled
"""
tx_disable = False
tx_fault = False
status_control_raw = self.__read_eeprom_specific_bytes(
SFP_STATUS_CONTROL_OFFSET, SFP_STATUS_CONTROL_WIDTH)
if status_control_raw:
data = int(status_control_raw[0], 16)
tx_disable_hard = (sffbase().test_bit(
data, SFP_TX_DISABLE_HARD_BIT) != 0)
tx_disable_soft = (sffbase().test_bit(
data, SFP_TX_DISABLE_SOFT_BIT) != 0)
tx_disable = tx_disable_hard | tx_disable_soft
return tx_disable
def get_tx_disable_channel(self):
"""
Retrieves the TX disabled channels in this SFP
Returns:
A hex of 4 bits (bit 0 to bit 3 as channel 0 to channel 3) to represent
TX channels which have been disabled in this SFP.
As an example, a returned value of 0x5 indicates that channel 0
and channel 2 have been disabled.
"""
# SFP doesn't support this feature
return 0
def get_lpmode(self):
"""
Retrieves the lpmode (low power mode) status of this SFP
Returns:
A Boolean, True if lpmode is enabled, False if disabled
"""
# SFP doesn't support this feature
return False
def get_power_override(self):
"""
Retrieves the power-override status of this SFP
Returns:
A Boolean, True if power-override is enabled, False if disabled
"""
# SFP doesn't support this feature
return False
def get_temperature(self):
"""
Retrieves the temperature of this SFP
Returns:
An integer number of current temperature in Celsius
"""
transceiver_dom_info_dict = self.get_transceiver_bulk_status()
return transceiver_dom_info_dict.get("temperature", "N/A")
def get_voltage(self):
"""
Retrieves the supply voltage of this SFP
Returns:
An integer number of supply voltage in mV
"""
transceiver_dom_info_dict = self.get_transceiver_bulk_status()
return transceiver_dom_info_dict.get("voltage", "N/A")
def get_tx_bias(self):
"""
Retrieves the TX bias current of this SFP
Returns:
A list of four integer numbers, representing TX bias in mA
for channel 0 to channel 4.
Ex. ['110.09', '111.12', '108.21', '112.09']
"""
transceiver_dom_info_dict = self.get_transceiver_bulk_status()
tx1_bs = transceiver_dom_info_dict.get("tx1bias", "N/A")
return [tx1_bs, "N/A", "N/A", "N/A"] if transceiver_dom_info_dict else []
def get_rx_power(self):
"""
Retrieves the received optical power for this SFP
Returns:
A list of four integer numbers, representing received optical
power in mW for channel 0 to channel 4.
Ex. ['1.77', '1.71', '1.68', '1.70']
"""
transceiver_dom_info_dict = self.get_transceiver_bulk_status()
rx1_pw = transceiver_dom_info_dict.get("rx1power", "N/A")
return [rx1_pw, "N/A", "N/A", "N/A"] if transceiver_dom_info_dict else []
def get_tx_power(self):
"""
Retrieves the TX power of this SFP
Returns:
A list of four integer numbers, representing TX power in mW
for channel 0 to channel 4.
Ex. ['1.86', '1.86', '1.86', '1.86']
"""
transceiver_dom_info_dict = self.get_transceiver_bulk_status()
tx1_pw = transceiver_dom_info_dict.get("tx1power", "N/A")
return [tx1_pw, "N/A", "N/A", "N/A"] if transceiver_dom_info_dict else []
def reset(self):
"""
Reset SFP and return all user module settings to their default srate.
Returns:
A boolean, True if successful, False if not
"""
# SFP doesn't support this feature
return False
def tx_disable(self, tx_disable):
"""
Disable SFP TX for all channels
Args:
tx_disable : A Boolean, True to enable tx_disable mode, False to disable
tx_disable mode.
Returns:
A boolean, True if tx_disable is set successfully, False if not
"""
sysfs_sfp_i2c_client_eeprom_path = self.port_to_eeprom_mapping[self.port_num]
status_control_raw = self.__read_eeprom_specific_bytes(
SFP_STATUS_CONTROL_OFFSET, SFP_STATUS_CONTROL_WIDTH)
if status_control_raw is not None:
# Set bit 6 for Soft TX Disable Select
# 01000000 = 64 and 10111111 = 191
tx_disable_bit = 64 if tx_disable else 191
status_control = int(status_control_raw[0], 16)
tx_disable_ctl = (status_control | tx_disable_bit) if tx_disable else (
status_control & tx_disable_bit)
try:
sysfsfile_eeprom = open(
sysfs_sfp_i2c_client_eeprom_path, mode="r+b", buffering=0)
buffer = create_string_buffer(1)
buffer[0] = chr(tx_disable_ctl)
# Write to eeprom
sysfsfile_eeprom.seek(SFP_STATUS_CONTROL_OFFSET)
sysfsfile_eeprom.write(buffer[0])
except:
#print("Error: unable to open file: %s" % str(e))
return False
finally:
if sysfsfile_eeprom:
sysfsfile_eeprom.close()
time.sleep(0.01)
return True
return False
def tx_disable_channel(self, channel, disable):
"""
Sets the tx_disable for specified SFP channels
Args:
channel : A hex of 4 bits (bit 0 to bit 3) which represent channel 0 to 3,
e.g. 0x5 for channel 0 and channel 2.
disable : A boolean, True to disable TX channels specified in channel,
False to enable
Returns:
A boolean, True if successful, False if not
"""
# SFP doesn't support this feature
return False
def set_lpmode(self, lpmode):
"""
Sets the lpmode (low power mode) of SFP
Args:
lpmode: A Boolean, True to enable lpmode, False to disable it
Note : lpmode can be overridden by set_power_override
Returns:
A boolean, True if lpmode is set successfully, False if not
"""
# SFP doesn't support this feature
return False
def set_power_override(self, power_override, power_set):
"""
Sets SFP power level using power_override and power_set
Args:
power_override :
A Boolean, True to override set_lpmode and use power_set
to control SFP power, False to disable SFP power control
through power_override/power_set and use set_lpmode
to control SFP power.
power_set :
Only valid when power_override is True.
A Boolean, True to set SFP to low power mode, False to set
SFP to high power mode.
Returns:
A boolean, True if power-override and power_set are set successfully,
False if not
"""
# SFP doesn't support this feature
return False
def get_name(self):
"""
Retrieves the name of the device
Returns:
string: The name of the device
"""
sfputil_helper = SfpUtilHelper()
sfputil_helper.read_porttab_mappings(
self.__get_path_to_port_config_file())
name = sfputil_helper.logical[self.index] or "Unknown"
return name
def get_presence(self):
"""
Retrieves the presence of the PSU
Returns:
bool: True if PSU is present, False if not
"""
if self.port_num not in self._sfp_port:
return False
status = 1
try:
with open(self.PRS_PATH, 'r') as port_status:
status = int(port_status.read(), 16)
status = (status >> (self.port_num - 49)) & 1
except IOError:
return False
return status == 0
def get_model(self):
"""
Retrieves the model number (or part number) of the device
Returns:
string: Model/part number of device
"""
transceiver_dom_info_dict = self.get_transceiver_info()
return transceiver_dom_info_dict.get("modelname", "N/A")
def get_serial(self):
"""
Retrieves the serial number of the device
Returns:
string: Serial number of device
"""
transceiver_dom_info_dict = self.get_transceiver_info()
return transceiver_dom_info_dict.get("serialnum", "N/A")