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gerrit.openbmc.org / openbmc / phosphor-power / 39ea02bc9458f3d5a7fdd317cb546ed046eaff78
commit39ea02bc9458f3d5a7fdd317cb546ed046eaff78[log] [tgz]
authorBrandon Wyman <bjwyman@gmail.com>Tue Nov 23 23:22:23 2021 +0000
committerBrandon Wyman <bjwyman@gmail.com>Fri Dec 10 19:15:13 2021 +0000
treea10405685897c1b71f754df09157c059907bda2b
parenta169b0f9d2d5114729e149c158d518176556b892 [diff]
psu-ng: Add in handling of specific MFR faults

Add in a function to determine what the various bits in statusMFR may be
indicating for a fault, based on the type of power supply (device driver
bound).

Add in PS_Kill, 12Vcs, and 12V CS faults for IBM power supply types.

Add in creating error logs for PS_Kill, 12Vcs, and 12V CS faults. The
12Vcs and 12V CS faults can essentially be treated the same as VOUT_UV
faults (same error type, same call out).

Tested:
Verified no PS_Kill, 12Vcs, or 12V CS fault on normal Rainier 2S4U

Simulated PS_Kill fault:
MFR fault: STATUS_WORD = 0x1840 STATUS_MFR_SPECIFIC = 0x10

Simulated 12Vcs fault:
PGOOD fault: STATUS_WORD = 0x1840, STATUS_MFR_SPECIFIC = 0x40
MFR fault: STATUS_WORD = 0x1840 STATUS_MFR_SPECIFIC = 0x40

Simulated 12V CS fault/warning:
MFR fault: STATUS_WORD = 0x1000 STATUS_MFR_SPECIFIC = 0x80

Change-Id: Ie89a58836ecec86dfa2e124eb6ab03e9dccce929
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
4 files changed
tree: a10405685897c1b71f754df09157c059907bda2b
  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. MAINTAINERS
  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",
  }