Breakout does not work on a Dell S6100.

[jSML4ThWwBID69YC]

Description

Breakout does not work on a Dell S6100.

Steps to reproduce the issue:

1. Install SONiC. Use branch 202106, 202111, or master. This report reflects today's master image. (03-22-2022)
2. Run breakout commands and see that it is broken.

Describe the results you received:

Here are the tested commands and results.

admin@sonic:~$ show int breakout
Invalid JSON file format('/usr/share/sonic/device/x86_64-dell_s6100_c2538-r0/Force10-S6100/port_config.ini')
Expecting value: line 1 column 1 (char 0)
Aborted!

admin@sonic:~$ sudo config interface breakout Ethernet36 4x10Gb --yes
[ERROR] Breakout feature is not available without platform.json file
Aborted!

The platform.json file does exist.

admin@sonic:~$ ls -l /usr/share/sonic/device/x86_64-dell_s6100_c2538-r0/platform.json 
-rw-r--r-- 1 root root 12736 Feb 20  2017 /usr/share/sonic/device/x86_64-dell_s6100_c2538-r0/platform.json

Describe the results you expected:

Working breakout commands.

Output of show version:

admin@sonic:~$ show version

SONiC Software Version: SONiC.master.82863-87af5659c
Distribution: Debian 11.2
Kernel: 5.10.0-8-2-amd64
Build commit: 87af5659c
Build date: Mon Mar 21 21:17:18 UTC 2022
Built by: AzDevOps@sonic-build-workers-001A2J

Platform: x86_64-dell_s6100_c2538-r0
HwSKU: Force10-S6100
ASIC: broadcom
ASIC Count: 1
Serial Number: 9L9D9Z2
Model Number: 06N1J1
Hardware Revision: A08
Uptime: 00:21:24 up 16 min,  2 users,  load average: 1.98, 2.27, 1.70

Docker images:
REPOSITORY                    TAG                      IMAGE ID       SIZE
docker-syncd-brcm             latest                   1e123ac9233f   785MB
docker-syncd-brcm             master.82863-87af5659c   1e123ac9233f   785MB
docker-gbsyncd-credo          latest                   03e78672f8b0   423MB
docker-gbsyncd-credo          master.82863-87af5659c   03e78672f8b0   423MB
docker-dhcp-relay             latest                   aabfb2c66a68   426MB
docker-sonic-telemetry        latest                   49d6caba4731   505MB
docker-sonic-telemetry        master.82863-87af5659c   49d6caba4731   505MB
docker-database               latest                   b69eb0a0f2a0   416MB
docker-database               master.82863-87af5659c   b69eb0a0f2a0   416MB
docker-orchagent              latest                   2207cc8a0516   436MB
docker-orchagent              master.82863-87af5659c   2207cc8a0516   436MB
docker-nat                    latest                   93e713733102   422MB
docker-nat                    master.82863-87af5659c   93e713733102   422MB
docker-sflow                  latest                   a1535e837b76   420MB
docker-sflow                  master.82863-87af5659c   a1535e837b76   420MB
docker-fpm-frr                latest                   265c6936b564   438MB
docker-fpm-frr                master.82863-87af5659c   265c6936b564   438MB
docker-macsec                 latest                   538c0fb01aa5   422MB
docker-macsec                 master.82863-87af5659c   538c0fb01aa5   422MB
docker-teamd                  latest                   efd0ec7afdb5   419MB
docker-teamd                  master.82863-87af5659c   efd0ec7afdb5   419MB
docker-platform-monitor       latest                   8d7f34793fe1   518MB
docker-platform-monitor       master.82863-87af5659c   8d7f34793fe1   518MB
docker-snmp                   latest                   121248e6ba69   448MB
docker-snmp                   master.82863-87af5659c   121248e6ba69   448MB
docker-sonic-mgmt-framework   latest                   d01fb46c88c2   549MB
docker-sonic-mgmt-framework   master.82863-87af5659c   d01fb46c88c2   549MB
docker-router-advertiser      latest                   846483505e52   405MB
docker-router-advertiser      master.82863-87af5659c   846483505e52   405MB
docker-lldp                   latest                   7e8300496782   445MB
docker-lldp                   master.82863-87af5659c   7e8300496782   445MB
docker-mux                    latest                   342b0a78208b   458MB
docker-mux                    master.82863-87af5659c   342b0a78208b   458MB

Output of show techsupport:

Seems broken on today's master image.

Additional information you deem important (e.g. issue happens only occasionally):

Since this happens on the last two releases and master, I wonder if I'm doing something wrong?

[jSML4ThWwBID69YC]

Adding the Redis check from #6023 shows the same empty results.

admin@sonic:~$ redis-cli -n 4 KEYS "BREAKOUT_CFG"
(empty array)

[zhangyanzhao]

By design, unsupported feature on 6100

[jSML4ThWwBID69YC]

By design, unsupported feature on 6100

Is there a place were supported/unsupported features are listed by device? The list at https://azure.github.io/SONiC/Supported-Devices-and-Platforms.html does not give any indication of feature status. Breakout is so common, it's hard to see how a device can be considered supported without it.

[bbabich]

Same issue on a Dell S5224f, which clearly should be supported :)

admin@sonic:~$ sudo show interfaces breakout
Invalid JSON file format('/usr/share/sonic/device/x86_64-dellemc_s5224f_c3538-r0/DellEMC-S5224f-P-25G/port_config.ini')
Expecting value: line 1 column 1 (char 0)
Aborted!

On a current release:

admin@sonic:~$ show version

SONiC Software Version: SONiC.master.207726-940e2cd9b
Distribution: Debian 11.6
Kernel: 5.10.0-18-2-amd64
Build commit: 940e2cd9b
Build date: Tue Jan 24 16:37:27 UTC 2023
Built by: AzDevOps@vmss-soni000D3J

Platform: x86_64-dellemc_s5224f_c3538-r0
HwSKU: DellEMC-S5224f-P-25G
ASIC: broadcom
ASIC Count: 1
Serial Number: xxxxxxx
Model Number: 0FPJD8
Hardware Revision: 01
Uptime: 05:49:42 up  6:56,  1 user,  load average: 0.45, 0.58, 0.72
Date: Mon 13 Feb 2023 05:49:42