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[Mellanox]Resolve chassis broken due to inconsistent with latest sonic_platform_common #13

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[Mellanox]Resolve chassis broken due to inconsistent with latest sonic_platform_common #13

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501df93
[sonic_platform]Support component API (get_firmware_version).
Sep 30, 2019
3dcb488
[sonic_platform]follow the PEP8 standard
Sep 30, 2019
92ddc77
[sonic_platform]Address comments
Oct 1, 2019
013b3a3
[sonic_platform]Remove ASIC_FW from components list
Oct 1, 2019
151f895
[sonic_platform]Add description of components
Oct 1, 2019
ea23de2
[sonic_platform] Raise an exception if CPLD version files not found.
Oct 1, 2019
cf723d2
[sonic_platform]Address comments
Oct 2, 2019
47b3e6e
[sonic_platform]Raise exception if any error occurs
Oct 3, 2019
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143 changes: 27 additions & 116 deletions platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@

try:
from sonic_platform_base.chassis_base import ChassisBase
from sonic_platform_base.component_base import ComponentBase
from sonic_daemon_base.daemon_base import Logger
from os import listdir
from os.path import isfile, join
Expand Down Expand Up @@ -37,22 +38,6 @@

REBOOT_CAUSE_FILE_LENGTH = 1

#version retrieving related definitions
CPLD_VERSION_ROOT = HWMGMT_SYSTEM_ROOT

CPLD1_VERSION_FILE = 'cpld1_version'
CPLD2_VERSION_FILE = 'cpld2_version'
CPLD_VERSION_MAX_LENGTH = 4

FW_QUERY_VERSION_COMMAND = 'mlxfwmanager --query'
BIOS_QUERY_VERSION_COMMAND = 'dmidecode -t 11'

#components definitions
COMPONENT_BIOS = "BIOS"
COMPONENT_FIRMWARE = "ASIC-FIRMWARE"
COMPONENT_CPLD1 = "CPLD1"
COMPONENT_CPLD2 = "CPLD2"

# Global logger class instance
SYSLOG_IDENTIFIER = "mlnx-chassis-api"
logger = Logger(SYSLOG_IDENTIFIER)
Expand All @@ -78,10 +63,12 @@ def __init__(self):
self.reboot_cause_initialized = False
logger.log_info("Chassis loaded successfully")


def __del__(self):
if self.sfp_event_initialized:
self.sfp_event.deinitialize()


def initialize_psu(self):
from sonic_platform.psu import Psu
# Initialize PSU list
Expand All @@ -90,6 +77,7 @@ def initialize_psu(self):
psu = Psu(index, self.sku_name)
self._psu_list.append(psu)


def initialize_fan(self):
from sonic_platform.fan import Fan
from sonic_platform.fan import FAN_PATH
Expand All @@ -107,6 +95,7 @@ def initialize_fan(self):
fan = Fan(index, index)
self._fan_list.append(fan)


def initialize_sfp(self):
from sonic_platform.sfp import SFP

Expand All @@ -128,22 +117,25 @@ def initialize_sfp(self):

self.sfp_module_initialized = True


def initialize_thermals(self):
from sonic_platform.thermal import initialize_thermals
# Initialize thermals
initialize_thermals(self.sku_name, self._thermal_list, self._psu_list)


def initialize_eeprom(self):
from eeprom import Eeprom
# Initialize EEPROM
self._eeprom = Eeprom()

def initialize_components_list(self):

def initialize_components(self):
# Initialize component list
self._component_name_list.append(COMPONENT_BIOS)
self._component_name_list.append(COMPONENT_FIRMWARE)
self._component_name_list.append(COMPONENT_CPLD1)
self._component_name_list.append(COMPONENT_CPLD2)
from sonic_platform.component import ComponentBIOS, ComponentCPLD
self._component_list.append(ComponentBIOS())
self._component_list.append(ComponentCPLD())


##############################################
# SFP methods
Expand All @@ -159,6 +151,7 @@ def get_num_sfps(self):
self.initialize_sfp()
return len(self._sfp_list)


def get_all_sfps(self):
"""
Retrieves all sfps available on this chassis
Expand All @@ -171,6 +164,7 @@ def get_all_sfps(self):
self.initialize_sfp()
return self._sfp_list


def get_sfp(self, index):
"""
Retrieves sfp represented by (0-based) index <index>
Expand All @@ -197,6 +191,7 @@ def get_sfp(self, index):

return sfp


def _extract_num_of_fans_and_fan_drawers(self):
num_of_fan = 0
num_of_drawer = 0
Expand All @@ -213,15 +208,18 @@ def _extract_num_of_fans_and_fan_drawers(self):

return num_of_fan, num_of_drawer


def _get_sku_name(self):
p = subprocess.Popen(GET_HWSKU_CMD, shell=True, stdout=subprocess.PIPE)
out, err = p.communicate()
return out.rstrip('\n')


def _get_port_position_tuple_by_sku_name(self):
position_tuple = port_position_tuple_list[hwsku_dict_port[self.sku_name]]
return position_tuple


def get_watchdog(self):
"""
Retrieves hardware watchdog device on this chassis
Expand All @@ -246,6 +244,7 @@ def get_watchdog(self):

return self._watchdog


def get_base_mac(self):
"""
Retrieves the base MAC address for the chassis
Expand All @@ -256,6 +255,7 @@ def get_base_mac(self):
"""
return self._eeprom.get_base_mac()


def get_serial_number(self):
"""
Retrieves the hardware serial number for the chassis
Expand All @@ -265,6 +265,7 @@ def get_serial_number(self):
"""
return self._eeprom.get_serial_number()


def get_system_eeprom_info(self):
"""
Retrieves the full content of system EEPROM information for the chassis
Expand All @@ -276,6 +277,7 @@ def get_system_eeprom_info(self):
"""
return self._eeprom.get_system_eeprom_info()


def _read_generic_file(self, filename, len):
"""
Read a generic file, returns the contents of the file
Expand All @@ -290,6 +292,7 @@ def _read_generic_file(self, filename, len):
logger.log_info("Fail to read file {} due to {}".format(filename, repr(e)))
return '0'


def _verify_reboot_cause(self, filename):
'''
Open and read the reboot cause file in
Expand All @@ -298,6 +301,7 @@ def _verify_reboot_cause(self, filename):
'''
return bool(int(self._read_generic_file(join(REBOOT_CAUSE_ROOT, filename), REBOOT_CAUSE_FILE_LENGTH).rstrip('\n')))


def initialize_reboot_cause(self):
self.reboot_major_cause_dict = {
'reset_main_pwr_fail' : self.REBOOT_CAUSE_POWER_LOSS,
Expand All @@ -323,6 +327,7 @@ def initialize_reboot_cause(self):
}
self.reboot_cause_initialized = True


def get_reboot_cause(self):
"""
Retrieves the cause of the previous reboot
Expand All @@ -348,101 +353,6 @@ def get_reboot_cause(self):

return self.REBOOT_CAUSE_NON_HARDWARE, ''

def _get_cpld_version(self, version_file):
cpld_version = self._read_generic_file(join(CPLD_VERSION_ROOT, version_file), CPLD_VERSION_MAX_LENGTH)
return cpld_version.rstrip('\n')

def _get_command_result(self, cmdline):
try:
proc = subprocess.Popen(cmdline, stdout=subprocess.PIPE, shell=True, stderr=subprocess.STDOUT)
stdout = proc.communicate()[0]
proc.wait()
result = stdout.rstrip('\n')

except OSError, e:
result = ''

return result

def _get_firmware_version(self):
"""
firmware version is retrieved via command 'mlxfwmanager --query'
which should return result in the following convention
admin@mtbc-sonic-01-2410:~$ sudo mlxfwmanager --query
Querying Mellanox devices firmware ...

Device #1:
----------

Device Type: Spectrum
Part Number: MSN2410-CxxxO_Ax_Bx
Description: Spectrum based 25GbE/100GbE 1U Open Ethernet switch with ONIE; 48 SFP28 ports; 8 QSFP28 ports; x86 dual core; RoHS6
PSID: MT_2860111033
PCI Device Name: /dev/mst/mt52100_pci_cr0
Base MAC: 98039bf3f500
Versions: Current Available
FW ***13.2000.1140***N/A

Status: No matching image found

By using regular expression '(Versions:.*\n[\s]+FW[\s]+)([\S]+)',
we can extrace the version which is marked with *** in the above context
"""
fw_ver_str = self._get_command_result(FW_QUERY_VERSION_COMMAND)
try:
m = re.search('(Versions:.*\n[\s]+FW[\s]+)([\S]+)', fw_ver_str)
result = m.group(2)
except :
result = ''

return result

def _get_bios_version(self):
"""
BIOS version is retrieved via command 'dmidecode -t 11'
which should return result in the following convention
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0022, DMI type 11, 5 bytes
OEM Strings
String 1:*0ABZS017_02.02.002*
String 2: To Be Filled By O.E.M.

By using regular expression 'OEM[\s]*Strings\n[\s]*String[\s]*1:[\s]*([0-9a-zA-Z_\.]*)'
we can extrace the version string which is marked with * in the above context
"""
bios_ver_str = self._get_command_result(BIOS_QUERY_VERSION_COMMAND)
try:
m = re.search('OEM[\s]*Strings\n[\s]*String[\s]*1:[\s]*([0-9a-zA-Z_\.]*)', bios_ver_str)
result = m.group(1)
except:
result = ''

return result

def get_firmware_version(self, component_name):
"""
Retrieves platform-specific hardware/firmware versions for chassis
componenets such as BIOS, CPLD, FPGA, etc.
Args:
component_name: A string, the component name.

Returns:
A string containing platform-specific component versions
"""
if component_name in self._component_name_list :
if component_name == COMPONENT_BIOS:
return self._get_bios_version()
elif component_name == COMPONENT_CPLD1:
return self._get_cpld_version(CPLD1_VERSION_FILE)
elif component_name == COMPONENT_CPLD2:
return self._get_cpld_version(CPLD2_VERSION_FILE)
elif component_name == COMPONENT_FIRMWARE:
return self._get_firmware_version()

return None

def _show_capabilities(self):
"""
Expand All @@ -465,6 +375,7 @@ def _show_capabilities(self):
except:
print "fail to retrieve capabilities for module index {}".format(s.index)


def get_change_event(self, timeout=0):
"""
Returns a nested dictionary containing all devices which have
Expand Down
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