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