tree 0905ba5264175ed51bc350c154dc02bf56eea41c
parent 11699d678d4166ff4b23900f31794754f305df64
author Chen Yugang <yugang.chen@linux.intel.com> 1595894008 +0800
committer Patrick Williams <patrick@stwcx.xyz> 1600273595 -0500

add BMC node properties for modular node system

In modular node system, there are several nodes in
one chassis, and each node has its BMC. One node
BMC takes primary role, BMC in other nodes works as
secondary.
Both primary BMC and secondary BMC manage their local
node source, they are peer to peer. Sometimes, they
need to communicate each other, for example, primary
BMC needs to show all event log including secondary
node event log, so it's needed to identify primary
and secondary BMC role.
In order to keep the modular node information in
each BMC, it's needed to define DBUS properties
to indicate BMC nodes and BMC role for each BMC
node, then knows how many nodes in system and
what's its BMC role in each node.
The interface is:
"xyz.openbmc_project.State.BMCRedundancy"
And the object path is:
"/xyz/openbmc_project/State/BMCRedundancy"
The "Associations" object path is:
"/xyz/openbmc_project/State/BMCRedundancy/Contained"

Tested:
It's tested in a modular system with multi-BMC.

Change-Id: I2383a059503c7a59abc839a1109c656b20745087
Signed-off-by: Chen Yugang <yugang.chen@linux.intel.com>
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>