TSC command doesn't work on the Smart Switch

[oleksandrivantsiv]

Steps to reproduce

Can be manually reproduced:

admin@sonic:~$ sudo TSC
This commmand is only supported Chassis

PR #19729 introduced an env variable SMARTSWITCH which is exported in by new script /usr/bin/platform_utils.

Only with the file existing and the SMARTSWITCH is true, the TSA/TSB/TSC can work on a smartswitch properly, otherwise it will be considered as a chassis with linecards:

https://github.com/sonic-net/sonic-buildimage/blob/master/dockers/docker-fpm-frr/base_image_files/TSC#L14

#!/bin/bash

# Source the platform_utils script
source "$(dirname "$0")/platform_utils" > /dev/null 2>&1

${SMARTSWITCH:=false}

# Restrict command to sudo users
if [ "$EUID" -ne 0 ] ; then
  echo "Root priveleges are needed for this operation"
  exit 1
fi

if [ -f /etc/sonic/chassisdb.conf ] && [ "$SMARTSWITCH" = false ] ; then
  if [[ $1 == "no-stats" ]]; then
    rexec all -c "sudo TSC no-stats"
  else
    rexec all -c "sudo TSC"
  fi
  exit 0
fi

/usr/bin/TS TSC
[[ $1 != "no-stats" ]] && portstat -p 5

if [[ "$(sonic-cfggen -d -v DEVICE_METADATA.localhost.subtype | tr '[:upper:]' '[:lower:]')" == *"dualtor"* ]]
then
  echo
  show mux status
fi

But the platform_utils is not there:

admin@sonic:/$ ls /usr/bin/platform_utils
ls: cannot access '/usr/bin/platform_utils': No such file or directory

admin@sonic:/$ whereis platform_utils
platform_utils:

sonic-buildimage/rules/docker-fpm-frr.mk should be updated to include /usr/bin/platform_utils

https://github.com/sonic-net/sonic-buildimage/blob/master/rules/docker-fpm-frr.mk

Observed behavior

Test failed:

Failed: TSC return unexpected state ERROR

Expected behavior

Test should pass on smart switch.

[oleksandrivantsiv]

@prgeor, @kperumalbfn FYI