sonic-buildimage/device/dell/x86_64-dellemc_z9264f_c3538-r0/plugins/psuutil.py
Sudharsan D.G 1ffb34b4e3 [devices]: Dell z9264f bringup (#2415)
* Updating Z9264f for A01 board

* Adding platform_reboot plugin to Z9264f

* Change execute mode for platform_reboot

* Indenting python files

* Adding missed service file

* Addressing code review comments

* Modified the polling logic in transceiver change event
2019-01-08 21:14:18 -08:00

98 lines
2.5 KiB
Python

#
# psuutil.py
# Platform-specific PSU status interface for SONiC
#
import os.path
import logging
import commands
Z9264F_MAX_PSUS = 2
IPMI_SENSOR_DATA = "docker exec -it pmon ipmitool sdr list"
PSU_PRESENCE = "PSU{0}_state"
# Use this for older firmware
# PSU_PRESENCE="PSU{0}_prsnt"
ipmi_sdr_list = ""
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"""
def __init__(self):
PsuBase.__init__(self)
# Fetch a BMC register
def get_pmc_register(self, reg_name):
status = 1
global ipmi_sdr_list
ipmi_dev_node = "/dev/pmi0"
ipmi_cmd = IPMI_SENSOR_DATA
status, ipmi_sdr_list = commands.getstatusoutput(ipmi_cmd)
if status:
logging.error('Failed to execute:' + ipmi_sdr_list)
sys.exit(0)
for item in ipmi_sdr_list.split("\n"):
if reg_name in item:
output = item.strip()
if not output:
print('\nFailed to fetch: ' + reg_name + ' sensor ')
sys.exit(0)
output = output.split('|')[1]
logging.basicConfig(level=logging.DEBUG)
return output
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
"""
Z9264F_MAX_PSUS = 2
return Z9264F_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 of the PSU of which to query status
:return: Boolean, True if PSU is operating properly, False if PSU is\
faulty
"""
#Until psu_status is implemented this is hardcoded temporarily
status = 1
return status
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
"""
status = 0
psu_reg_name = PSU_PRESENCE.format(index)
psu_status = int(self.get_pmc_register(psu_reg_name),16)
if (psu_status != 'ERR'):
# Check for PSU presence
if (psu_status):
status = 1
return status