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gerrit.openbmc.org / openbmc / phosphor-power / 6869acb327b39e89c11f139fad9426eade42d448
commit6869acb327b39e89c11f139fad9426eade42d448[log] [tgz]
authorBrandon Wyman <bjwyman@gmail.com>Wed Nov 03 16:38:05 2021 +0000
committerFaisal Awada <faisal@us.ibm.com>Thu Jan 04 21:25:39 2024 +0000
tree97f1ba08b890d7a9b50c79281177043d8843d9aa
parente4b76830eda5337c2ab5168d05c78737f7e0b3ac [diff]
psu-ng: Disable Communication, Logic, and Memory (CML) fault

Turn off CML fault logging as some of the power supplies don't support
all PMBus commands that could be sent from device driver or application.
The PSU sets the CML fault bit on when it receives unsupported PMBus
command.

Testing:
  - Tested the change on simulation by setting the CML status bit on and
    verified no error log reported.
  - Tested the change on BMC System as follow and verified no error log
    reported
    * Powered on the chassis
    * i2cget -f -y 3 0x68 0x6c w # causes information error log for
      tracing purpose.

Change-Id: Ie1b52e5350a29f65bd517ad11293c6dc522ac83e
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Signed-off-by: Faisal Awada <faisal@us.ibm.com>
2 files changed
tree: 97f1ba08b890d7a9b50c79281177043d8843d9aa
  1. cold-redundancy/
  2. example/
  3. org/
  4. phosphor-power-sequencer/
  5. phosphor-power-supply/
  6. phosphor-regulators/
  7. power-sequencer/
  8. power-supply/
  9. services/
  10. subprojects/
  11. test/
  12. tools/
  13. .clang-format
  14. .gitignore
  15. .shellcheck
  16. device.hpp
  17. device_monitor.hpp
  18. elog-errors.hpp
  19. file_descriptor.hpp
  20. gpio.cpp
  21. gpio.hpp
  22. LICENSE
  23. meson.build
  24. meson.options
  25. names_values.hpp
  26. OWNERS
  27. pmbus.cpp
  28. pmbus.hpp
  29. README.md
  30. types.hpp
  31. utility.cpp
  32. utility.hpp
README.md

Overview

This repository contains applications for configuring and monitoring devices that deliver power to the system.

  • cold-redundancy: Application that makes power supplies work in Cold Redundancy mode and rotates them at intervals.
  • phosphor-power-sequencer: Applications for configuring and monitoring power sequencer and related devices that support JSON-driven configuration.
  • phosphor-power-supply: Next generation power supply monitoring application.
  • phosphor-regulators: JSON-driven application that configures and monitors voltage regulators.
  • power-sequencer: A power sequencer monitoring application.
  • power-supply: Original power supply monitoring application.
  • tools/power-utils: Power supply utilities.

Build

To build all applications in this repository:

  meson setup build
  ninja -C build

To clean the repository and remove all build output:

  rm -rf build

You can specify meson options to customize the build process. For example, you can specify:

  • Which applications to build and install.
  • Application-specific configuration data, such as power sequencer type.
  • Whether to build tests.

Power Supply Monitor and Util JSON config

Several applications in this repository require a PSU JSON config to run. The JSON config file provides information for:

  • Where to access the pmbus attributes
  • Which attribute file in pmbus maps to which property and interface in D-Bus
  • Which kernel device directory is used on which PSU

There is an example psu.json to describe the necessary configurations.

  • inventoryPMBusAccessType defines the pmbus access type, which tells the service which sysfs type to use to read the attributes. The possible values are:
    • Base: The base dir, e.g. /sys/bus/i2c/devices/3-0069/
    • Hwmon: The hwmon dir, e.g. /sys/bus/i2c/devices/3-0069/hwmon/hwmonX/
    • Debug: The pmbus debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/
    • DeviceDebug: The device debug dir, e.g. '/sys/kernel/debug/./`
    • HwmonDeviceDebug: The hwmon device debug dir, e.g. /sys/kernel/debug/pmbus/hwmonX/cffps1/
  • fruConfigs defines the mapping between the attribute file and the FRU inventory interface and property. The configuration example below indicates that the service will read part_number attribute file from a directory specified by the above pmbus access type, and assign to PartNumber property in xyz.openbmc_project.Inventory.Decorator.Asset interface.
      "fruConfigs": [
    {
      "propertyName": "PartNumber",
      "fileName": "part_number",
      "interface": "xyz.openbmc_project.Inventory.Decorator.Asset"
    }
  ]
  • psuDevices defines the kernel device dir for each PSU in inventory. The configuration example below indicates that powersupply0's device is located in /sys/bus/i2c/devices/3-0069.
      "psuDevices": {
    "/xyz/openbmc_project/inventory/system/chassis/motherboard/powersupply0" : "/sys/bus/i2c/devices/3-0069",
  }