tree cded6020e29358bd8913d6f7b2b5d56cd8f42204
parent 5e177970328acb51d7213d137b6b47cde0451780
author Edward A. James <eajames@us.ibm.com> 1507305235 -0500
committer Brad Bishop <bradleyb@fuzziesquirrel.com> 1510951809 +0000

Add OCC present count detection and watch

Add a Presence child class of Error to handle detecting the number of
OCCs available. Add an instance of this Presence class if the Device
detects that it is the master OCC, since the number of present OCCs is
only reported by the master OCC. When a change to the number of OCCs
reported is detected, compare with the number of OCCs determined to be
active by the Manager, and if there is a mismatch, follow the usual
error path (reset OCC, etc).

Partially resolves openbmc/openbmc#2285
See https://gerrit.openbmc-project.xyz/#/c/7843/

Change-Id: Idbaca52b307992d9b01fe15439ab746ef6d64397
Signed-off-by: Edward A. James <eajames@us.ibm.com>