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[Mellanox] update eeprom.py plugin #4364

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Apr 3, 2020
Merged

[Mellanox] update eeprom.py plugin #4364

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14 changes: 12 additions & 2 deletions device/mellanox/x86_64-mlnx_msn2700-r0/plugins/eeprom.py
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@
from cStringIO import StringIO
from sonic_eeprom import eeprom_base
from sonic_eeprom import eeprom_tlvinfo
from sonic_device_util import get_machine_info
import subprocess
except ImportError, e:
raise ImportError (str(e) + "- required module not found")
Expand All @@ -34,6 +35,14 @@ def log_error(msg):
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
Expand All @@ -45,12 +54,12 @@ def __init__(self, name, path, cpld_root, ro):
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
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):
Expand All @@ -60,3 +69,4 @@ def decode_eeprom(self, e):
decode_output = sys.stdout.getvalue()
sys.stdout = original_stdout
print(decode_output.replace('\0', ''))