- **status**: review --> fixed
- **Version**: 4.7 --> 4.6
- **Milestone**: 4.7.1 --> 4.6.2
- **Comment**:
changeset: 7306:b2feb367b04d
branch: opensaf-4.6.x
parent: 7303:a3527537b564
user: Alex Jones <[email protected]>
date: Mon Mar 07 17:36:12 2016 +0530
summary: plm: handle ATCA M7 state (communication lost) better [#1601]
changeset: 7307:45ebed5bd542
branch: opensaf-4.7.x
parent: 7304:413fd6c03922
user: Alex Jones <[email protected]>
date: Mon Mar 07 17:36:12 2016 +0530
summary: plm: handle ATCA M7 state (communication lost) better [#1601]
changeset: 7308:ff93cf8b0439
tag: tip
parent: 7305:9ad67105a7a3
user: Alex Jones <[email protected]>
date: Mon Mar 07 17:36:12 2016 +0530
summary: plm: handle ATCA M7 state (communication lost) better [#1601]
---
** [tickets:#1601] PLM: better handle ATCA M7 state (communication lost)**
**Status:** fixed
**Milestone:** 4.6.2
**Created:** Tue Nov 17, 2015 08:31 PM UTC by Alex Jones
**Last Updated:** Tue Nov 24, 2015 03:29 PM UTC
**Owner:** Alex Jones
ATCA M7 (communication lost) state is not handled well in the code. M7 state
should translate to PLM Management Lost readiness state. Currently, the PLM
code only sets Management Lost when an HPI call fails.
There are a few problems with this: (1) If the blade is extracted very quickly,
no hotswap event occurs, and Management Lost doesn't get set, because no HPI
calls are ever made. (2) Also, if the active controller starts up with another
blade in the chassis not physically present, but in M7 state, that other blade
will not come up when reinserted. The reason is that HPI will not generate a
hotswap event, but a RESOURCE Restored event. Even though a hotswap event is
created by PLM in this case, the IDR is not retrieved, so it fails verification.
According to HPI-B.03.02-XTCA, the RESOURCE event is used for M7 transitions.
The HPI PLM code should send this event up to the HE FSM to set/unset
Management Lost. And when the HPI PLM code receives RESOURCE Restored it should
also send a hotswap event with the IDR info, so the FRU can be properly
validated if need be.
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