sonic-buildimage/device/celestica/x86_64-cel_silverstone-r0/sonic_platform/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

118 lines
3.3 KiB
Python

#############################################################################
# Celestica Silverstone
#
# 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 glob
import os
import sys
import re
from array import array
if sys.version_info.major == 3:
from io import StringIO
else:
from cStringIO import StringIO
from sonic_platform_base.sonic_eeprom import eeprom_dts
from sonic_platform_base.sonic_eeprom import eeprom_tlvinfo
except ImportError as e:
raise ImportError(str(e) + "- required module not found")
CACHE_ROOT = '/var/cache/sonic/decode-syseeprom'
CACHE_FILE = 'syseeprom_cache'
TLV_EEPROM_I2C_BUS = 0
TLV_EEPROM_I2C_ADDR = 56
class Tlv(eeprom_tlvinfo.TlvInfoDecoder):
EEPROM_DECODE_HEADLINES = 6
def __init__(self):
self._eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-00{1}/eeprom".format(
TLV_EEPROM_I2C_BUS, TLV_EEPROM_I2C_ADDR)
super(Tlv, self).__init__(self._eeprom_path, 0, '', True)
self._eeprom = self._load_eeprom()
def __parse_output(self, decode_output):
decode_output.replace('\0', '')
lines = decode_output.split('\n')
lines = lines[self.EEPROM_DECODE_HEADLINES:]
_eeprom_info_dict = dict()
for line in lines:
try:
match = re.search(
'(0x[0-9a-fA-F]{2})([\s]+[\S]+[\s]+)([\S]+)', line)
if match is not None:
idx = match.group(1)
value = match.group(3).rstrip('\0')
_eeprom_info_dict[idx] = value
except:
pass
return _eeprom_info_dict
def _load_eeprom(self):
original_stdout = sys.stdout
sys.stdout = StringIO()
try:
self.read_eeprom_db()
except:
decode_output = sys.stdout.getvalue()
sys.stdout = original_stdout
return self.__parse_output(decode_output)
status = self.check_status()
if 'ok' not in status:
return False
if not os.path.exists(CACHE_ROOT):
try:
os.makedirs(CACHE_ROOT)
except:
pass
#
# only the eeprom classes that inherit from eeprom_base
# support caching. Others will work normally
#
try:
self.set_cache_name(os.path.join(CACHE_ROOT, CACHE_FILE))
except:
pass
e = self.read_eeprom()
if e is None:
return 0
try:
self.update_cache(e)
except:
pass
self.decode_eeprom(e)
decode_output = sys.stdout.getvalue()
sys.stdout = original_stdout
(is_valid, valid_crc) = self.is_checksum_valid(e)
if not is_valid:
return False
return self.__parse_output(decode_output)
def get_eeprom(self):
return self._eeprom
def get_serial(self):
return self._eeprom.get('0x23', "Undefined.")
def get_mac(self):
return self._eeprom.get('0x24', "Undefined.")