d1940b2cf4
This patch set implements the following: - Fixes the conflicts in chassis.py / platform.py in sonic_platfrom - Consolidating the common library files in sonic_platform - Moving QFX5210 specific drivers to qfx5210/modules - Moving Juniper common fpga drivers to common/modules - Cleaning up the platform driver files - Bug fixes in QFX5210 platform monitor & initialiazation script - Fixing the bugs in QFX5210 eeprom parsing Signed-off-by: Ciju Rajan K <crajank@juniper.net>
102 lines
3.4 KiB
Python
102 lines
3.4 KiB
Python
#!/usr/bin/env python
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#
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# Name: psuutil.py version: 1.0
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#
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# Description: Platform-specific PSU status interface for Juniper QFX5200
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#
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# Copyright (c) 2020, Juniper Networks, Inc.
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# All rights reserved.
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#
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# Notice and Disclaimer: This code is licensed to you under the GNU General
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# Public License as published by the Free Software Foundation, version 3 or
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# any later version. This code is not an official Juniper product. You can
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# obtain a copy of the License at <https://www.gnu.org/licenses/>
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#
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# OSS License:
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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# Third-Party Code: This code may depend on other components under separate
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# copyright notice and license terms. Your use of the source code for those
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# components is subject to the terms and conditions of the respective license
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# as noted in the Third-Party source code file.
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import os.path
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try:
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from sonic_psu.psu_base import PsuBase
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except ImportError as e:
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raise ImportError(str(e) + "- required module not found")
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class PsuUtil(PsuBase):
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"""Platform-specific PSUutil class"""
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PSU_DIR = "/sys/devices/pci0000:00/0000:00:1c.0/0000:0f:00.0/psu-tmc.15"
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def __init__(self):
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PsuBase.__init__(self)
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# Get sysfs attribute
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def get_attr_value(self, attr_path):
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retval = 'ERR'
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if (not os.path.isfile(attr_path)):
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return retval
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try:
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with open(attr_path, 'r') as fd:
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retval = fd.read()
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except Exception as error:
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logging.error("Unable to open ", attr_path, " file !")
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retval = retval.rstrip(' \t\n\r')
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return int(retval)
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def get_num_psus(self):
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"""
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Retrieves the number of PSUs available on the device
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:return: An integer, the number of PSUs available on the device
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"""
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MAX_PSUS = 2
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return MAX_PSUS
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def get_psu_status(self, index):
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"""
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Retrieves the oprational status of power supply unit (PSU) defined
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by index <index>
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:param index: An integer, index (starts from 1) of the PSU of which to query status
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:return: Boolean, True if PSU is operating properly, False if PSU is\
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faulty
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"""
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attr_file = 'psu'+ str(index-1) +'_' + 'present'
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attr_path = self.PSU_DIR +'/' + attr_file
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attr_value = self.get_attr_value(attr_path)
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return attr_value == 1
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def get_psu_presence(self, index):
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"""
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Retrieves the presence status of power supply unit (PSU) defined
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by index <index>
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:param index: An integer, index of the PSU of which to query status
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:return: Boolean, True if PSU is plugged, False if not
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"""
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attr_file ='psu'+ str(index-1) +'_' + 'present'
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attr_path = self.PSU_DIR +'/' + attr_file
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attr_value = self.get_attr_value(attr_path)
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return attr_value == 1
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