sonic-buildimage/device/mellanox/x86_64-mlnx_msn2700-r0/plugins/eeprom.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

76 lines
2.4 KiB
Python

#############################################################################
# Mellanox
#
# Platform and model specific eeprom subclass, inherits from the base class,
# and provides the followings:
# - the eeprom format definition
# - specific encoder/decoder if there is special need
#############################################################################
try:
import binascii
import time
import optparse
import warnings
import os
import sys
import syslog
if sys.version_info.major == 3:
from io import StringIO
else:
from cStringIO import StringIO
from sonic_eeprom import eeprom_base
from sonic_eeprom import eeprom_tlvinfo
from sonic_py_common.device_info import get_machine_info
import subprocess
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
SYSLOG_IDENTIFIER = "eeprom.py"
EEPROM_SYMLINK = "/var/run/hw-management/eeprom/vpd_info"
CACHE_FILE = "/var/cache/sonic/decode-syseeprom/syseeprom_cache"
def log_error(msg):
syslog.openlog(SYSLOG_IDENTIFIER)
syslog.syslog(syslog.LOG_ERR, msg)
syslog.closelog()
machine_info = get_machine_info()
onie_platform = machine_info['onie_platform']
if 'simx' in onie_platform:
platform_path = os.path.join('/usr/share/sonic/device', onie_platform)
subprocess.check_call(['/usr/bin/xxd', '-r', '-p', 'syseeprom.hex', 'syseeprom.bin'], cwd=platform_path)
CACHE_FILE = os.path.join(platform_path, 'syseeprom.bin')
class board(eeprom_tlvinfo.TlvInfoDecoder):
_TLV_INFO_MAX_LEN = 256
RETRIES = 5
def __init__(self, name, path, cpld_root, ro):
for attempt in range(self.RETRIES):
if not os.path.islink(EEPROM_SYMLINK):
time.sleep(1)
else:
break
if not (os.path.exists(EEPROM_SYMLINK) or os.path.isfile(CACHE_FILE)):
log_error("Nowhere to read syseeprom from! No symlink or cache file found")
raise RuntimeError("No syseeprom symlink or cache file found")
self.eeprom_path = EEPROM_SYMLINK if 'simx' not in onie_platform else CACHE_FILE
super(board, self).__init__(self.eeprom_path, 0, '', True)
def decode_eeprom(self, e):
original_stdout = sys.stdout
sys.stdout = StringIO()
eeprom_tlvinfo.TlvInfoDecoder.decode_eeprom(self, e)
decode_output = sys.stdout.getvalue()
sys.stdout = original_stdout
print(decode_output.replace('\0', ''))