Gitiles
Code Review Sign In
gerrit.openbmc.org / openbmc / openpower-vpd-parser / 094a7352aa790af2b1f526131001da37cc526299
commit094a7352aa790af2b1f526131001da37cc526299[log] [tgz]
authorSouvik Roy <souvikroyofficial10@gmail.com>Thu Feb 20 01:31:45 2025 -0600
committerSouvik Roy <souvikroyofficial10@gmail.com>Mon Feb 24 07:38:41 2025 +0000
tree33ecd44bb122d5e4cea4cf8e308cee39ffdf9157
parent815c6029066be7d704b4b5fb357a4798d3488b29 [diff]
Refactor pass 1 planar API exception handling

This commit refactors vpd specific utility API used to check pass 1
planar, in order to handle any exceptions thrown by it locally. All
utility methods should handle exceptions locally and log a journal log
in case of failure. The caller of the utility APIs should check the
return value to detect success/failure.

Change-Id: I79e38a15ac38e2de9844061c00e7a6d06da6f793
Signed-off-by: Souvik Roy <souvikroyofficial10@gmail.com>
1 file changed
tree: 33ecd44bb122d5e4cea4cf8e308cee39ffdf9157
  1. configuration/
  2. scripts/
  3. service_files/
  4. test/
  5. vpd-manager/
  6. vpd-tool/
  7. vpdecc/
  8. .clang-format
  9. .gitignore
  10. LICENSE
  11. meson.build
  12. meson_options.txt
  13. OWNERS
  14. 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 here.

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.