[DellEMC] S6100 Last Reboot Reason Thermal Support

[santhosh-kt]

- What I did

• Added support for Thermal event in Last Reboot Reason "show reboot-cause" command.
  Updated:
• Handled dependency based changes(Between process-reboot-cause and s6100_platform.sh).
• Handled newer bios based changes(holding previous reset register values and retrieve them in case of secondary bios boot).

- How I did it
On branch sonic-s6100-lrr
Changes to be committed:
(use "git reset HEAD ..." to unstage)

    modified:   files/image_config/platform/rc.local
    new file:   platform/broadcom/sonic-platform-modules-dell/common/nvram_rd_wr.py
    modified:   platform/broadcom/sonic-platform-modules-dell/debian/platform-modules-s6100.install
    new file:   platform/broadcom/sonic-platform-modules-dell/s6100/scripts/fast-reboot_plugin
    modified:   platform/broadcom/sonic-platform-modules-dell/s6100/scripts/platform_reboot_override
    modified:   platform/broadcom/sonic-platform-modules-dell/s6100/scripts/s6100_platform.sh
    new file:   platform/broadcom/sonic-platform-modules-dell/s6100/scripts/track_reboot_reason.sh
    new file:   platform/broadcom/sonic-platform-modules-dell/s6100/scripts/warm-reboot_plugin
    modified:   platform/broadcom/sonic-platform-modules-dell/s6100/sonic_platform/chassis.py
    modified:   platform/broadcom/sonic-platform-modules-dell/s6100/sonic_platform/eeprom.py
    new file:   platform/broadcom/sonic-platform-modules-dell/s6100/systemd/s6100-reboot-cause.service

- How to verify it
Added the Unit Test Results.

All Test case result.txt - Updated
Secondary bios boot - test results.txt
Unit test - Last Reboot Reason - S6100.txt - Updated
environment.txt

- Description for the changelog

[DellEMC] S6100 Last Reboot Reason Thermal Support and Dependency based changes

Depends on Azure/sonic-utilities#740
DO NOT MERGE UNTIL ABOVE PR IS MERGED
Update: sonic-net/sonic-utilities#740 is merged.

- A picture of a cute animal (not mandatory but encouraged)

[santhosh-kt]

sonic-net/sonic-utilities#740 PR is merged. Please review the above changes.

[sujinmkang]

retest this please

[santhosh-kt]

Internal discussion is being taken place, please hold the review till further changes applied to this PR.

[santhosh-kt]

retest vsimage please

[santhosh-kt]

retest vsimage please

[santhosh-kt]

Added all the changes. Please continue to review the changes.

[santhosh-kt]

retest this please

[santhosh-kt]

retest broadcom please

[sujinmkang]

retest this please

[sujinmkang]

retest vsimage please

[sujinmkang]

Can you please double check the software reboot reason case?
It seems it's not consistently working.
Jan 25 01:01:56.749931 str-s6100-acs-5 INFO process-reboot-cause: /proc/cmdline indicates reboot type: warm-reboot
Jan 25 01:01:56.750580 str-s6100-acs-5 INFO process-reboot-cause: Previous reboot cause: Unknown software reboot

[santhosh-kt]

It looks like, sonic-net/sonic-utilities#740 PR is not synced to master branch. s6100-reboot-cause.service requires this PR, that will handle warm-reboot, fast-reboot and reboot cases in 2.0 API.

Attached logs regarding the plugin - warm-reboot.txt

This sonic-net/sonic-utilities#740 PR is already picked in 201911 but not in master yet.

[jleveque]

@santhosh-kt: FYI, sonic-net/sonic-utilities#740 made it into the master branch today with this sonic-utilities submodule update: #4080

[jleveque]

Retest vsimage please

[sujinmkang]

Retest vsimage please

[sujinmkang]

retest vsimage please

[santhosh-kt]

These changes are not ported to 201911 yet. Needed to be ported.