Dell S6000: wrong lane mapping in port_config.ini

[vivekvijaykumar]

Description

admin@sonic:~$ show platform sum
Platform: x86_64-dell_s6000_s1220-r0
HwSKU: Force10-S6000
ASIC: broadcom

I am noticing that the lane maps for the first 6 ports seemed to be swapped based on LLDP neighbors and also by manually checking it by doing single port shut/no shut test.

current lane map is as follows -

Ethernet0 29,30,31,32 40G
Ethernet4 25,26,27,28 40G
Ethernet8 37,38,39,40 40G
Ethernet12 33,34,35,36 40G
Ethernet16 41,42,43,44 40G
Ethernet20 45,46,47,48 40G

I believe based on LLDP and manual shut/no shut tests the lane maps should be -

Ethernet0 25,26,27,28
Ethernet4 29,30,31,32
Ethernet8 33,34,35,36
Ethernet12 37,38,39,40
Ethernet16 45,46,47,48
Ethernet20 41,42,43,44

Could we verify that the current lane map for this platform on all ports is valid ?

Steps to reproduce the issue:

1. Install latest sonic on Dell_S6000 <x86_64-dell_s6000_s1220-r0>
2. Wait for all ports to be up with a neighboring 40G platform
3. Do individual shut/no shut and see the peer ports that flap. The wiring will show as though interfaces are cross wired

Describe the results you received:

Describe the results you expected:

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

```

root@sonic:/home/admin# cat /host/machine.conf
onie_version=3.20.1.3
onie_vendor_id=674
onie_platform=x86_64-dell_s6000_s1220-r0
onie_machine=dell_s6000_s1220
onie_machine_rev=0
onie_arch=x86_64
onie_config_version=1
onie_build_date="2015-05-03T16:20-0700"
onie_partition_type=gpt
onie_kernel_version=3.2.35
```

**Attach debug file `sudo generate_dump`:**

```
(paste your output here)
```

[vivekvijaykumar]

@vharish02 Can we please get someone from Dell to take a look?

[lguohan]

you must be using s6000-on. the one in the buildimage is for s6000. they are the same hardware, but dell have different naming convention on the front panel port. in fact, all ports are swapped.

also s6000 have different eeprom format than s6000-on, that is why decode-syseeprom is not working.

[vivekvijaykumar]

@lguohan , thanks for the update . I see on the sonic wiki for support hw that Dell S600-ON is listed as supported. It also says Dell S6100-ON is supported . Since the SONIC buildimage is building for S6000, could we update the wiki so it avoids confusion (given that the onie_platform name is also identical between S6000 and S6000-ON)

[Anandaraj-Maharajan]

@vivekvijaykumar We are looking in to it. We will make necessary modifications for S6000-ON and raise a PR soon. Update from normal FTOS to SONiC in normal is not a straight forward step.

[yxieca]

Information has been provided by Guohan's comments.