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gerrit.openbmc.org / openbmc / phosphor-power / 9582d9ccc66839bee3e26581bbf22a2c098200b9
commit9582d9ccc66839bee3e26581bbf22a2c098200b9[log] [tgz]
authorFaisal Awada <faisal@us.ibm.com>Tue Jul 11 09:31:22 2023 -0500
committerFaisal Awada <faisal@us.ibm.com>Tue Jul 18 21:36:45 2023 +0000
tree9fffae069fd11baa01840510fe6d0830bd0d0b39
parent328ca312575791387150959e696254445f80c6b7 [diff]
psu-ng: Add ACBEL PSU pmbus supported commands.

Update PSU monitor to use the following pmbus commands supported
by ACBEL PSU DD:

 - To clear STATUS_INPUT use curr1_crit_alarm instead of
   in1_crit_alarm fault.
 - Update ACBEL PSU firmware version to be read from
   /sys/kernel/debug/pmbus/hwmonX instead from
   /sys/kernel/debug/pmbus/hwmonX/3-005a/ and update the ACBEL
   FW version size to 6 bytes.
 - On/off config not supported on ACBEL PSU.

Testing:
* Unplugged power cord from the ACBEL PSU, and verified an error
  reported on the system.
* Set IIN_OC_FAULT_LIMIT fault and verified curr1_crit_alarm clears
  the STATUS_INPUT.
* Verified the code reading the ACBEL FW revision correctly.
* Verified in1_input clears all faults on ACBEL PSU.
* Tested modified the code on IBMCFFPS and verified the ACBEL PSU
  modification did not change the behavior on IBMCFFPS.

Change-Id: I5fef87043adb5d677723eb8a20b0aedc4574b7fd
Signed-off-by: Faisal Awada <faisal@us.ibm.com>
2 files changed
tree: 9fffae069fd11baa01840510fe6d0830bd0d0b39
  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. argument.hpp
  17. device.hpp
  18. device_monitor.hpp
  19. elog-errors.hpp
  20. file_descriptor.hpp
  21. gpio.cpp
  22. gpio.hpp
  23. LICENSE
  24. meson.build
  25. meson_options.txt
  26. names_values.hpp
  27. OWNERS
  28. pmbus.cpp
  29. pmbus.hpp
  30. README.md
  31. types.hpp
  32. utility.cpp
  33. 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 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",
  }