pldm-stack: Update PLDM Fru inventory
As the discussion in [1], `pldmd` will directly host the FRU inventory
interfaces. Update the design spec.
[1] https://discord.com/channels/775381525260664832/778790638563885086/1316606810031128647
Signed-off-by: Thu Nguyen <thu@os.amperecomputing.com>
Change-Id: Ie666023767dc785071ab9824b33733120f3c5c3d
diff --git a/designs/pldm-stack.md b/designs/pldm-stack.md
index 76592b9..daebfa9 100644
--- a/designs/pldm-stack.md
+++ b/designs/pldm-stack.md
@@ -370,28 +370,24 @@
and the BMC making this information available via the Processor and
ProcessorCollection schemas.
-This design is built around the pldmd and entity-manager applications on the
-BMC:
+This design is built around the pldmd on the BMC:
- The pldmd asks the host firmware's PLDM stack for the host's FRU record table,
by sending it the PLDM GetFRURecordTable command. The pldmd should send this
command if the host indicates support for the PLDM FRU spec. The pldmd
receives a PLDM FRU record table from the host firmware (
www.dmtf.org/sites/default/files/standards/documents/DSP0257_1.0.0.pdf). The
- daemon parses the FRU record table and hosts raw PLDM FRU information on
- D-Bus. It will house the PLDM FRU properties for a certain FRU under an
- xyz.openbmc_project.Inventory.Source.PLDM.FRU D-Bus interface, and house the
- PLDM entity info extracted from the FRU record set PDR under an
- xyz.openbmc_project.Source.PLDM.Entity interface.
+ daemon parses the FRU record table and hosts the PLDM FRU information on
+ D-Bus.
-- Configurations can be written for entity-manager to probe an interface like
- xyz.openbmc_project.Inventory.Source.PLDM.FRU, and create FRU inventory D-Bus
- objects. Inventory interfaces from the xyz.openbmc_project. Inventory
- namespace can be applied on these objects, by converting PLDM FRU property
- values into xyz.openbmc_project.Invnetory.Decorator.Asset property values,
- such as Part Number and Serial Number, in the entity manager configuration
- file. Bmcweb can find these FRU inventory objects based on D-Bus interfaces,
- as it does today.
+- Pldmd will also host the FRU inventory D-Bus from the xyz.openbmc_project.
+ Inventory namespace can be applied on these objects, by converting PLDM FRU
+ property values into xyz.openbmc_project.Inventory.Decorator.Asset,
+ xyz.openbmc_project.Inventory.Decorator.Revision,
+ xyz.openbmc_project.Inventory.Decorator.AssetTag and
+ xyz.openbmc_project.Inventory.Decorator.Compatible interfaces property values,
+ such as Part Number, Serial Number, Version, Names and AssetTag. Bmcweb can
+ find these FRU inventory objects based on D-Bus interfaces, as it does today.
### MCTP endpoint discovery