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gerrit.openbmc.org / openbmc / libpldm / 16eeccc01c7e24a964292cee8d844f6628b14e5e
commit16eeccc01c7e24a964292cee8d844f6628b14e5e[log] [tgz]
authorJohn Chung <john.chung@arm.com>Fri Jul 18 15:36:53 2025 -0500
committerAndrew Jeffery <andrew@codeconstruct.com.au>Tue Jul 22 00:23:58 2025 +0000
tree6bed6c4a03b1869f5d49f5ba76f277085f562411
parent21a639d6e67d2cd31a2247c76558b3a40a0786fa [diff]
dsp: base: Allow PLDM File Transfer use MultipartReceive decode API

MultipartReceive command in DSP0240 1.2.0 allow different PLDM Type
to use. DfRead command of PLDM File Transfer protocol (DSP0242 1.0.0)
is one of the specific implementation of MultipartReceive.

Change-Id: I806d16a1a21bcb2b3bee5b590db2280710e624b6
Signed-off-by: John Chung <john.chung@arm.com>
2 files changed
tree: 6bed6c4a03b1869f5d49f5ba76f277085f562411
  1. abi/
  2. docs/
  3. evolutions/
  4. include/
  5. instance-db/
  6. scripts/
  7. src/
  8. subprojects/
  9. tests/
  10. tools/
  11. CONTRIBUTING.md ⇨ docs/checklists/changes.md
  12. .clang-format
  13. .clang-tidy
  14. CHANGELOG.md
  15. Doxyfile.in
  16. LICENSE
  17. meson.build
  18. meson.options
  19. OWNERS
  20. README.md
README.md

libpldm

This is a library which deals with the encoding and decoding of PLDM messages. It should be possible to use this library by projects other than OpenBMC, and hence certain constraints apply to it:

  • keeping it light weight
  • implementation in C
  • minimal dynamic memory allocations
  • endian-safe
  • no OpenBMC specific dependencies

Source files are named according to the PLDM Type, for eg base.[h/c], fru.[h/c], etc.

Given a PLDM command "foo", the library will provide the following API: For the Requester function:

encode_foo_req() - encode a foo request
decode_foo_resp() - decode a response to foo

For the Responder function:

decode_foo_req() - decode a foo request
encode_foo_resp() - encode a response to foo

The library also provides API to pack and unpack PLDM headers.

To Build

libpldm is configured and built using meson. Python's pip or pipx can be used to install a recent version on your machine:

pipx install meson

Once meson is installed:

meson setup build && meson compile -C build

To run unit tests

meson test -C build

Working with libpldm

Components of the library ABI[^1] (loosely, functions) are separated into three categories:

[^1]: "library API + compiler ABI = library ABI"

  1. Stable
  2. Testing
  3. Deprecated

Applications depending on libpldm should aim to only use functions from the stable category. However, this may not always be possible. What to do when required functions fall into the deprecated or testing categories is discussed in CONTRIBUTING.