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gerrit.openbmc.org / openbmc / openpower-occ-control / 755af1029964f7706d52c4b473aa16f1c03995f6
commit755af1029964f7706d52c4b473aa16f1c03995f6[log] [tgz]
authorChris Cain <cjcain@us.ibm.com>Tue Feb 27 16:09:51 2024 -0600
committerChris Cain <cjcain@us.ibm.com>Wed Feb 28 17:10:07 2024 -0600
tree5391dcfccdd70c0021c1ed5be2e2a1ce60b7d1e9
parent89e54faba95061fe361ccc38f5671198122431c8 [diff]
Handle other PLDM_STATE_SET_OPERATIONAL states

- Code will no longer assume the OCC is not running if an unexpected
state is received. It will continue to look for a good/known state.
- Added code that will throttle the occ-control pldm journal traces
if unable to read the OCC active sensor states. In some error
conditions, this tracing would flood the trace and the repeated traces
are not helpful for debug.
- Change some journal entries to ERR when the state indicated that the
system was in safe mode (OCCs disabled)
- If request for occ active sensor state was sent, and then a PLDM
sensor event comes in for that instance, the event status is used and
the response is ignored.
- Added README for occ-control

Signed-off-by: Chris Cain <cjcain@us.ibm.com>
Change-Id: Ic26f1d0c4dc59e7a61b965b052d649e4bc152fde
5 files changed
tree: 5391dcfccdd70c0021c1ed5be2e2a1ce60b7d1e9
  1. example/
  2. service_files/
  3. subprojects/
  4. test/
  5. .clang-format
  6. .gitignore
  7. app.cpp
  8. file.hpp
  9. i2c_occ.cpp
  10. i2c_occ.hpp
  11. LICENSE
  12. meson.build
  13. meson.options
  14. occ-active.sh
  15. occ_command.cpp
  16. occ_command.hpp
  17. occ_dbus.cpp
  18. occ_dbus.hpp
  19. occ_device.cpp
  20. occ_device.hpp
  21. occ_errors.cpp
  22. occ_errors.hpp
  23. occ_events.hpp
  24. occ_ffdc.cpp
  25. occ_ffdc.hpp
  26. occ_manager.cpp
  27. occ_manager.hpp
  28. occ_pass_through.cpp
  29. occ_pass_through.hpp
  30. occ_presence.cpp
  31. occ_presence.hpp
  32. occ_sensor.mako.hpp
  33. occ_status.cpp
  34. occ_status.hpp
  35. OWNERS
  36. pldm.cpp
  37. pldm.hpp
  38. powercap.cpp
  39. powercap.hpp
  40. powermode.cpp
  41. powermode.hpp
  42. README.md
  43. sensor_gen.py
  44. utils.cpp
  45. utils.hpp
README.md

OpenPOWER OCC Control Service

This service will handle communications to the On-Chip Controller (OCC) on Power processors. The OCC provides processor and memory temperatures, power readings, power cap support, system power mode support, and idle power saver support. OCC Control will be interfacing with the OCC to collect the temperatures and power readings, updating the system power mode, setting power caps, and idle power save parameters.

The service is started automatically when the BMC is started.

Build Project

This project can be built with meson. The typical meson workflow is: meson builddir && ninja -C builddir.

Server

The server will start automatically after BMC is powered on.

Server status: systemctl status org.open_power.OCC.Control.service

To restart the service: systemctl restart org.open_power.OCC.Control.service

Configuration

Service files are located in service_files subdirectory.

References

Power10

IBM EnergyScale for Power10 Processor-Based Systems whitepaper: https://www.ibm.com/downloads/cas/E7RL9N4E

OCC Firmware Interface Spec for Power10: https://github.com/open-power/docs/blob/P10/occ/OCC_P10_FW_Interfaces_v1_17.pdf

OCC Firmware: https://github.com/open-power/occ/tree/master-p10

Power9

IBM EnergyScale for POWER9 Processor-Based Systems: https://www-01.ibm.com/common/ssi/cgi-bin/ssialias?htmlfid=49019149USEN&

OCC Firmware Interface Spec for POWER9: https://github.com/open-power/docs/blob/P9/occ/OCC_P9_FW_Interfaces.pdf