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gerrit.openbmc.org / openbmc / openpower-occ-control / 4b82f3e3575a2e85d73d8408ad27205e440f2c7d
commit4b82f3e3575a2e85d73d8408ad27205e440f2c7d[log] [tgz]
authorChris Cain <cjcain@us.ibm.com>Mon Apr 22 14:44:29 2024 -0500
committerChris Cain <cjcain@us.ibm.com>Mon Apr 22 14:48:12 2024 -0500
treeb93cff51a513b539e594b1013267d22dc190334e
parent755af1029964f7706d52c4b473aa16f1c03995f6 [diff]
Create PEL if unable to get the OCC PDRs

The OCC PDRs are required so occ-control will know when the OCCs are
available and ready to communicate. If the PDRs never become available
there is currently no indication other than the OCC sensors not being
available.
This code change will create a PEL when the PDRs have not been found
after 5 minutes. The service will continue looking for the PDRs after
logging the PEL.

Change-Id: Ia2200273d04b91cba9cad3cf8465cc9cada73428
Signed-off-by: Chris Cain <cjcain@us.ibm.com>
3 files changed
tree: b93cff51a513b539e594b1013267d22dc190334e
  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