tree ff0422317a95c0a9ff84ce062ab3e1ad9af3f8d9
parent 79b45003dc8caa96124e33c8cc398af0e8a5b9c9
author Potin Lai <potin.lai@quantatw.com> 1647311139 +0800
committer Andrew Geissler <andrew@geissonator.com> 1647609927 +0000

chassis-state-manager: Add multi-chassis support

Add multi-chassis management support, each chassis bus separates by
giving a unique chassis id.

Current code only support single chassis, and alway assume bus name is
"xyz.openbmc_project.State.Chassis".

This patch allow user to launch chassis-state-manager with a chassis id,
and chassis id is added into service bus name for identification.

Because there are many places hardcode with bus name
"xyz.openbmc_project.State.Chassis", if chassis id is 0,
chassis-state-manager will request both
"xyz.openbmc_project.State.Chassis" and
"xyz.openbmc_project.State.Chassis0" bus name to meet backwards
compatibility.

Tested on Bletchley:
root@bletchley:~# busctl tree xyz.openbmc_project.State.Chassis
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/state
      `-/xyz/openbmc_project/state/chassis0
root@bletchley:~# busctl tree xyz.openbmc_project.State.Chassis0
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/state
      `-/xyz/openbmc_project/state/chassis0
root@bletchley:~# busctl tree xyz.openbmc_project.State.Chassis1
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/state
      `-/xyz/openbmc_project/state/chassis1
......

patch dependencies:
https://gerrit.openbmc-project.xyz/c/openbmc/phosphor-state-manager/+/51465

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: I2ce3e9ab2c95a2688143f4e3775da164a5c33c19