sonic-buildimage/device/juniper/x86_64-juniper_qfx5200-r0/plugins/psuutil.py
Joe LeVeque 7f4ab8fbd8
[sonic-utilities] Update submodule; Build and install as a Python 3 wheel (#5926)
Submodule updates include the following commits:

* src/sonic-utilities 9dc58ea...f9eb739 (18):
  > Remove unnecessary calls to str.encode() now that the package is Python 3; Fix deprecation warning (#1260)
  > [generate_dump] Ignoring file/directory not found Errors (#1201)
  > Fixed porstat rate and util issues (#1140)
  > fix error: interface counters is mismatch after warm-reboot (#1099)
  > Remove unnecessary calls to str.decode() now that the package is Python 3 (#1255)
  > [acl-loader] Make list sorting compliant with Python 3 (#1257)
  > Replace hard-coded fast-reboot with variable. And some typo corrections (#1254)
  > [configlet][portconfig] Remove calls to dict.has_key() which is not available in Python 3 (#1247)
  > Remove unnecessary conversions to list() and calls to dict.keys() (#1243)
  > Clean up LGTM alerts (#1239)
  > Add 'requests' as install dependency in setup.py (#1240)
  > Convert to Python 3 (#1128)
  > Fix mock SonicV2Connector in python3: use decode_responses mode so caller code will be the same as python2 (#1238)
  > [tests] Do not trim from PATH if we did not append to it; Clean up/fix shebangs in scripts (#1233)
  > Updates to bgp config and show commands with BGP_INTERNAL_NEIGHBOR table (#1224)
  > [cli]: NAT show commands newline issue after migrated to Python3 (#1204)
  > [doc]: Update Command-Reference.md (#1231)
  > Added 'import sys' in feature.py file (#1232)

* src/sonic-py-swsssdk 9d9f0c6...1664be9 (2):
  > Fix: no need to decode() after redis client scan, so it will work for both python2 and python3 (#96)
  > FieldValueMap `contains`(`in`)  will also work when migrated to libswsscommon(C++ with SWIG wrapper) (#94)

- Also fix Python 3-related issues:
    - Use integer (floor) division in config_samples.py (sonic-config-engine)
    - Replace print statement with print function in eeprom.py plugin for x86_64-kvm_x86_64-r0 platform
    - Update all platform plugins to be compatible with both Python 2 and Python 3
    - Remove shebangs from plugins files which are not intended to be executable
    - Replace tabs with spaces in Python plugin files and fix alignment, because Python 3 is more strict
    - Remove trailing whitespace from plugins files
2020-11-25 10:28:36 -08:00

103 lines
3.4 KiB
Python

#
# Name: psuutil.py version: 1.0
#
# Description: Platform-specific PSU status interface for Juniper QFX5200
#
# Copyright (c) 2020, Juniper Networks, Inc.
# All rights reserved.
#
# Notice and Disclaimer: This code is licensed to you under the GNU General
# Public License as published by the Free Software Foundation, version 3 or
# any later version. This code is not an official Juniper product. You can
# obtain a copy of the License at <https://www.gnu.org/licenses/>
#
# OSS License:
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
# Third-Party Code: This code may depend on other components under separate
# copyright notice and license terms. Your use of the source code for those
# components is subject to the terms and conditions of the respective license
# as noted in the Third-Party source code file.
import os.path
try:
from sonic_psu.psu_base import PsuBase
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
class PsuUtil(PsuBase):
"""Platform-specific PSUutil class"""
PSU_DIR = "/sys/devices/pci0000:00/0000:00:1c.0/0000:0f:00.0/psu-tmc.15"
def __init__(self):
PsuBase.__init__(self)
# Get sysfs attribute
def get_attr_value(self, attr_path):
retval = 'ERR'
if (not os.path.isfile(attr_path)):
return retval
try:
with open(attr_path, 'r') as fd:
retval = fd.read()
except Exception as error:
logging.error("Unable to open ", attr_path, " file !")
retval = retval.rstrip(' \t\n\r')
return int(retval)
def get_num_psus(self):
"""
Retrieves the number of PSUs available on the device
:return: An integer, the number of PSUs available on the device
"""
MAX_PSUS = 2
return MAX_PSUS
def get_psu_status(self, index):
"""
Retrieves the oprational status of power supply unit (PSU) defined
by index <index>
:param index: An integer, index (starts from 1) of the PSU of which to query status
:return: Boolean, True if PSU is operating properly, False if PSU is\
faulty
"""
attr_file = 'psu' + str(index-1) + '_' + 'present'
attr_path = self.PSU_DIR + '/' + attr_file
attr_value = self.get_attr_value(attr_path)
return attr_value == 1
def get_psu_presence(self, index):
"""
Retrieves the presence status of power supply unit (PSU) defined
by index <index>
:param index: An integer, index of the PSU of which to query status
:return: Boolean, True if PSU is plugged, False if not
"""
attr_file = 'psu' + str(index-1) + '_' + 'present'
attr_path = self.PSU_DIR + '/' + attr_file
attr_value = self.get_attr_value(attr_path)
return attr_value == 1