tree 2315c109cc04762a23f6f602bd4467ca81a7e41d
parent a44efe48bb03c369d02f2c5e93506d2718d04d18
author Matt Spinler <spinler@us.ibm.com> 1583274992 -0600
committer Matt Spinler <spinler@us.ibm.com> 1583875595 +0000

PEL: Get PLDM instance ID asynchonously

Start actually getting the PLDM instance ID from the PLDM daemon for use
in sending PLDM commands, and refactor the PLDM interface class to do
this using sd_bus_call_method_async.  After the instance ID is obtained
then the rest of the PLDM command sequence can be run to notify the host
of PELs.

This is necessary because the PLDM daemon may be making a call to the
logging daemon at the same time to create a new OpenBMC event log due
to a host PEL that came down, and there will be a deadlock if the method
call was synchronous.

A new instance ID is needed for every new PLDM command, unless there was
a failure before the host could respond, so the code keeps track of when
it needs to get a new ID.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I0e00d1180363250662bd85f9ec69813ada500931