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gerrit.openbmc.org / openbmc / openpower-vpd-parser / c7565ed6444f3617e67edc454bef88c099636642
commitc7565ed6444f3617e67edc454bef88c099636642[log] [tgz]
authorAnupama B R <anupama.b.r1@ibm.com>Thu Jun 19 02:08:39 2025 -0500
committerAnupama B R <anupama.b.r1@ibm.com>Fri Jun 20 02:26:12 2025 -0500
tree89daef7da488cc1e2df64678fb11e43ffebae17a
parent23a90f1a7e522b3506b37c6c2b01f0de091b3a49 [diff]
Stub for Listener class

This commit has stub for Listener class, which can be used to register
the events and handle the callback functionality for those events.
This commit only adds stub class for Listener.

Change-Id: I8731abc212239823e7062e3ee23f46a150b942a8
Signed-off-by: Anupama B R <anupama.b.r1@ibm.com>
5 files changed
tree: 89daef7da488cc1e2df64678fb11e43ffebae17a
  1. configuration/
  2. docs/
  3. scripts/
  4. service_files/
  5. test/
  6. vpd-manager/
  7. vpd-tool/
  8. vpdecc/
  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.