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gerrit.openbmc.org / openbmc / phosphor-power / b40f04c2ce2b9fdfae183a37d54294344a79cd72
commitb40f04c2ce2b9fdfae183a37d54294344a79cd72[log] [tgz]
authorMatt Spinler <spinler@us.ibm.com>Mon Mar 20 11:07:44 2023 -0500
committerMatt Spinler <spinler@us.ibm.com>Mon Mar 20 11:27:35 2023 -0500
tree58f363423360fd15d5316a589686d0638b30104a
parenta068f424e5527bd74b2e203d78f6201c70fe60de [diff]
psu-ng: Change paths of SN/PN/FN files

The cffps2 power supply device driver started showing these fields under
new names in a different directory.  Eventually, the ones in the
original location will be removed.

Old path: /sys/kernel/debug/pmbux/hwmonX/cffps2
New path: /sys/kernel/debug/pmbux/hwmonX

Old name       New Name
-------------------------
fru            mfr_model
part_number    mfr_revision
header         mfr_location
serial_number  mfr_serial

Tested:
Compared the results of introspecting the PS inventory before and after
the changes as the application puts these 4 fields into the inventory.

Change-Id: I0614396c28c08df22d57f88f8be1920d63a10132
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
2 files changed
tree: 58f363423360fd15d5316a589686d0638b30104a
  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. test/
  11. tools/
  12. .clang-format
  13. .gitignore
  14. .shellcheck
  15. argument.hpp
  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.txt
  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 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",
  }