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gerrit.openbmc.org / openbmc / openpower-vpd-parser / 18b840b04467eae9d072b6d4d694314dd7b9712e
commit18b840b04467eae9d072b6d4d694314dd7b9712e[log] [tgz]
authorAnupama B R <anupama.b.r1@ibm.com>Mon Sep 29 09:29:22 2025 -0500
committerAnupama B R <anupama.b.r1@ibm.com>Wed Oct 15 13:45:43 2025 +0000
treece48ee88b07f1bf7ed8155081e0e5fdd5df581cb
parentca738cf1acca2a0cb9f0189adbf9ea0c1505efff [diff]
Update vpd-tool forceReset command

The vpd-tool application is updated so that the forceReset command
triggers collection of all FRUs VPD through the wait-vpd-parsers
service, since Prime system inventory and CollectAllFRUVPD are now
handled there.

The system inventory JSON symbolic link is removed so that the assetTag
property on D-Bus can be recreated when vpd-manager restarts.

Change-Id: Ia4e55cffb9f77445ad1dc5571ffbd15165ebb9dd
Signed-off-by: Anupama B R <anupama.b.r1@ibm.com>
2 files changed
tree: ce48ee88b07f1bf7ed8155081e0e5fdd5df581cb
  1. configuration/
  2. docs/
  3. service_files/
  4. test/
  5. vpd-manager/
  6. vpd-tool/
  7. vpdecc/
  8. wait-vpd-parser/
  9. .clang-format
  10. .gitignore
  11. LICENSE
  12. meson.build
  13. meson.options
  14. OWNERS
  15. README.md
README.md

Overview

This repository hosts code for OpenPower and IBM IPZ format VPD parsers. Both OpenPower VPD and IPZ VPD formats are structured binaries that consist of records and keywords. A record is a collection of multiple keywords. More information about the format can be found at a broken link.

The repository consists of two distinct applications, which are:

OpenPower VPD Parser

This is a build-time YAML driven application that parses the OpenPower VPD format and uses the YAML configuration (see extra-properties-example.yaml and writefru.yaml) to determine:

  • The supported records and keywords.
  • How VPD data is translated into D-Bus interfaces and properties.

The application instance must be passed in the file path to the VPD (this can, for example, be a sysfs path exposed by the EEPROM device driver) and also the D-Bus object path(s) that EEPROM data needs to be published under.

IBM VPD Parser

This parser is can be built by passing in the --enable-ibm-parser configure option. This parser differs from the OpenPower VPD parser in the following ways:

  • It parses all the records and keywords from the VPD, including large keywords (Keywords that begin with a # and are > 255 bytes in length).
  • It relies on a runtime JSON configuration (see examples/inventory.json) to determine the D-Bus object path(s) that hold interfaces and properties representing the VPD for a given VPD file path.

Making the application runtime JSON driven allows us to support multiple systems (with different FRU configurations) to be supported in a single code image as well as making the application more flexible for future improvements.

TODOs and Future Improvements

  1. The long-term goal is to completely do away with the build time YAML driven configurations and instead reconcile the OpenPower VPD parser and the IBM VPD parser applications into a single runtime JSON driven application.
  2. Add details to the README on how to configure and build the application.
  3. More JSON documentation.
  4. Support for more IBM VPD formats.
  5. VPD Write and tool documentation.