Get pcied address from chassis_db failing.

[arlakshm]

This PR sonic-net/sonic-buildimage#9681 added logic to update the config_db with asic pcied address present in CHASSIS_DB. This logic is kicked-in only if a file use_pci_id_chassis is present in the platfrom directory of the supervisor or linecard.

This file use_pci_id_chassis this file is not present in the 7808 supervisor or multi-asic linecard directory, so the supervisor or multi asic linecard init fails. Manually adding pcied addresses to asic.conf or config_db helps recover the device.

[Staphylo]

I'll check this out

[Staphylo]

I investigated the supervisor issue and we actually had the change internally for it along a few other ones.
I created sonic-net/sonic-buildimage#10913 which will address the issue.

Regarding setting use_pci_id_chassis on the multi asic linecards, I will discuss this with the team later today.

[Staphylo]

The team confirmed that the use_pci_id_chassis file is indeed required for multi-asic scenarios.
The only SKU that needs it is https://github.com/Azure/sonic-buildimage/tree/master/device/arista/x86_64-arista_7800r3a_36d2_lc
I'll make a PR for it.

[Staphylo]

I opened sonic-net/sonic-buildimage#10987 which should close this issue.