tree fc854ca263d10e2e311fa1a9afe24fd8dea91d9d
parent 42eaf9f5d053f184990f5f382dfc41933d04a17d
author Pavithra Barithaya <pavithra.b@ibm.com> 1632916691 -0500
committer Pavithra Barithaya <pavithra.b@ibm.com> 1633520562 +0000

PLDM: Reset Reload usecase to check the BMC state

This commit implements the RR usecase.
When the BMC takes a reboot when the host is up and we get
the getPDR request from host even when BMC is NotReady which leads
to problem.
This commit checks if the BMC is ready or not and then handles
the getPDR request from host.

In the current state, pldm stack does not dynamically generate
all the PDRs for us to send PDR repository change event to host at
runtime. IBM has plans to make the PDR exchange dynamic in future,
but until we come up with that feature, just as a temporary fix
we check the BMC state to determine if PLDM stack is ready for
a PDR exchange.

When services like inventory and led manager are added to the
dependency list of pldm, MCTP will start first but PLDM starts late,
the host assumes that BMC is not back and reboots us.

This commit also solves the pldmd crash which was because
some fru was getting a remove signal but the fru table was not
completely built after a reboot.

Tested:
set the BMC state property to NotReady using busctl and then
using pldmtool requested a getPDR.
pldmtool platform getpdr -d 2
BMC is not ready
Response Message Error: rc=0,cc=4

Signed-off-by: Pavithra Barithaya <pavithra.b@ibm.com>
Change-Id: I6599409a154d6359db389be5e44da139ee2f3205