ICECUBE800BANW: handle smb eeprom on cpu bus

[aalamsi22]

Pre-submission checklist

• I've ran the linters locally and fixed lint errors related to the files I modified in this PR. You can install the linters by running pip install -r requirements-dev.txt && pre-commit install
• pre-commit run

Summary

This is the ninth PR in a series of PRs to add support for ICECUBE800BANW.

Platform manager and weutil assume an SCM eeprom target exists because we are reusing the MERU intel i2c-i801 driver workaround around which just manually creates an scm target. These changes add temporary special handling of the smb eeprom until a long term solution is introduced.

# ls /run/devmap/eeproms/ -al
total 20
drwxr-xr-x  2 root root   100 Jan 30 17:39 .
drwxr-xr-x 10 root root   200 Jan 30 17:37 ..
lrwxrwxrwx  1 root root    35 Jan 30 17:39 CHASSIS_EEPROM -> /sys/bus/i2c/devices/10-0050/eeprom
-rw-r--r--  1 root root 16384 Jan 30 17:37 SMB_EEPROM
-rw-r--r--  1 root root   753 Jan 30 17:39 SMB_EEPROM_PARSED

# weutil --list
Name:SMB Path:/run/devmap/eeproms/SMB_EEPROM Offset:15360
Name:CHASSIS Path:/run/devmap/eeproms/CHASSIS_EEPROM Offset:15360

PRs in this series, ordered by landing priority:

1. ICECUBE800BANW: New platform definition & Platform Mapping #873
2. ICECUBE800BANW: bsp mapping #871
3. ICECUBE800BANW: qsfp_service support #870
4. ICECUBE800BANW: led service support #875
5. ICECUBE800BANW: vendor mapping and asic config #874
6. ICECUBE800BANW: initial test_configs #877
7. ICECUBE800BANW: Platform_manager support #845
8. ICECUBE800BANW: sensor_service config #846
9. ICECUBE800BANW: handle smb eeprom on cpu bus #892 (THIS PR)

Landing Priority: This PR should be landed ninth.

Test Plan

These tests apply to all the PRS in the priority list above

sw_tests

All sw_tests are passing

platform_hw_test

# platform_hw_test -config-file /opt/fboss/share/platform_configs/platform_manager.json
[==========] Running 2 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 2 tests from PlatformHwTest
[ RUN      ] PlatformHwTest.CorrectMacX86
I0130 17:48:21.349339  3529 PlatformNameLib.cpp:56] Getting platform name from bios using dmidecode ...
I0130 17:48:21.351416  3529 PlatformNameLib.cpp:66] Platform name inferred from bios: ICECUBE800BANW
I0130 17:48:21.351424  3529 PlatformNameLib.cpp:68] Platform name mapped: ICECUBE800BANW
I0130 17:48:21.351717  3529 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:48:21.351956  3529 ConfigValidator.cpp:666] Validating platform_manager config
I0130 17:48:21.351993  3529 ConfigValidator.cpp:707] Validating SlotTypeConfig for Slot SMB_SLOT...
I0130 17:48:21.352001  3529 ConfigValidator.cpp:724] Validating PmUnitConfig for PmUnit SMB in Slot SMB_SLOT...
I0130 17:48:21.375403  3529 ConfigValidator.cpp:771] Validating Symbolic links...
I0130 17:48:25.561958  3529 ConfigValidator.cpp:778] Validating Transceiver symbolic links...
I0130 17:48:25.562065  3529 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:48:25.562348  3529 MacAddressCheck.cpp:99] eepromName: SMB x86CpuMac: b8:a1:b8:a5:4c:ee
[       OK ] PlatformHwTest.CorrectMacX86 (15050 ms)
[ RUN      ] PlatformHwTest.PCIDevicesPresent
I0130 17:48:36.399600  3529 PlatformNameLib.cpp:56] Getting platform name from bios using dmidecode ...
I0130 17:48:36.401355  3529 PlatformNameLib.cpp:66] Platform name inferred from bios: ICECUBE800BANW
I0130 17:48:36.401361  3529 PlatformNameLib.cpp:68] Platform name mapped: ICECUBE800BANW
I0130 17:48:36.401553  3529 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:48:36.401744  3529 ConfigValidator.cpp:666] Validating platform_manager config
I0130 17:48:36.401767  3529 ConfigValidator.cpp:707] Validating SlotTypeConfig for Slot SMB_SLOT...
I0130 17:48:36.401772  3529 ConfigValidator.cpp:724] Validating PmUnitConfig for PmUnit SMB in Slot SMB_SLOT...
I0130 17:48:36.424476  3529 ConfigValidator.cpp:771] Validating Symbolic links...
I0130 17:48:40.593261  3529 ConfigValidator.cpp:778] Validating Transceiver symbolic links...
I0130 17:48:40.593371  3529 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
[       OK ] PlatformHwTest.PCIDevicesPresent (4196 ms)
[----------] 2 tests from PlatformHwTest (19246 ms total)

[----------] Global test environment tear-down
[==========] 2 tests from 1 test suite ran. (19246 ms total)
[  PASSED  ] 2 tests.

platform_manager_hw_test

# platform_manager_hw_test --config-file /opt/fboss/share/platform_configs/platform_manager.json -noenable_pkg_mgmnt
...
[       OK ] PlatformManagerHwTest.XcvrLedFiles (28708 ms)
[----------] 8 tests from PlatformManagerHwTest (360987 ms total)

[----------] Global test environment tear-down
[==========] 8 tests from 1 test suite ran. (360987 ms total)
[  PASSED  ] 8 tests.

weutil_hw_test

# weutil_hw_test -config-file /opt/fboss/share/platform_configs/platform_manager.json
[==========] Running 4 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 4 tests from WeutilTest
[ RUN      ] WeutilTest.getWedgeInfo
I0130 17:45:53.775881  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:45:53.775932  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:45:53.775943  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:45:53.776247  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
[       OK ] WeutilTest.getWedgeInfo (10864 ms)
[ RUN      ] WeutilTest.getEepromPaths
I0130 17:46:04.640549  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.640561  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.640565  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:04.640793  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
[       OK ] WeutilTest.getEepromPaths (0 ms)
[ RUN      ] WeutilTest.ValidateAllEepromContents
I0130 17:46:04.641027  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.641035  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.641040  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:04.641255  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:04.641474  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.641483  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:04.641488  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:15.594639  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:15.594650  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
[       OK ] WeutilTest.ValidateAllEepromContents (10953 ms)
[ RUN      ] WeutilTest.getInfoJson
I0130 17:46:15.594936  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:15.594945  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:15.594950  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:15.595166  3527 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/platform_manager.json
I0130 17:46:15.595397  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0130 17:46:37.295608  3527 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
[       OK ] WeutilTest.getInfoJson (21700 ms)
[----------] 4 tests from WeutilTest (43519 ms total)

[----------] Global test environment tear-down
[==========] 4 tests from 1 test suite ran. (43519 ms total)
[  PASSED  ] 4 tests.

sensor_service_hw_test

# sensor_service_hw_test --config_file /opt/fboss/share/platform_configs/sensor_service.json
[==========] Running 6 tests from 1 test suite.
[----------] Global test environment set-up.
[----------] 6 tests from SensorServiceHwTest
[ RUN      ] SensorServiceHwTest.GetAllSensors
I0202 19:21:13.649553  7765 PlatformNameLib.cpp:80] Platform name read from cache: ICECUBE800BANW
I0202 19:21:13.649596  7765 ConfigLib.cpp:50] Using config file: /opt/fboss/share/platform_configs/sensor_service.json
...
[----------] 6 tests from SensorServiceHwTest (11238 ms total)

[----------] Global test environment tear-down
[==========] 6 tests from 1 test suite ran. (11238 ms total)
[  PASSED  ] 6 tests.

data_corral_service_hw_test

# data_corral_service_hw_test --led_manager_config_file /opt/fboss/share/platform_configs/led_manager.json --platform_manager_config_file /opt/fboss/share/platform_configs/platform_manage
r.json
[==========] Running 5 tests from 1 test suite.
[----------] Global test environment set-up.
...
[       OK ] DataCorralServiceHwTest.testThrift (13818 ms)
[----------] 5 tests from DataCorralServiceHwTest (41691 ms total)

[----------] Global test environment tear-down
[==========] 5 tests from 1 test suite ran. (41691 ms total)
[  PASSED  ] 5 tests.

led_service_hw_test
LEDS were physically confirmed as well

# led_service_hw_test
[       OK ] LedServiceTest.checkLedBlinking (142307 ms)
[----------] 3 tests from LedServiceTest (579065 ms total)
...
[----------] Global test environment tear-down
[==========] 3 tests from 1 test suite ran. (579065 ms total)
[  PASSED  ] 3 tests.