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gerrit.openbmc.org / openbmc / phosphor-power / e83604bee3e03bc9ce0308fc4945d89ed7055c08
commite83604bee3e03bc9ce0308fc4945d89ed7055c08[log] [tgz]
authorCheng C Yang <cheng.c.yang@linux.intel.com>Thu Jan 09 09:41:47 2020 +0800
committerMatt Spinler <spinler@us.ibm.com>Thu Jan 16 16:01:52 2020 +0000
tree1cd347d7242fe21deaed66f0cc76a31424065d1b
parentdcb4b3b3b8d13d5257120a28d9427033ae631178 [diff]
Add feature Cold Redundancy

Add an Intel specific feature PSU Cold Redundancy. This is the first patch
which will get PSU information and PSU Event from D-Bus interfaces.
Cold Redundancy design document is in
https://gerrit.openbmc-project.xyz/c/openbmc/docs/+/27637

Signed-off-by: Cheng C Yang <cheng.c.yang@linux.intel.com>
Change-Id: Ic039118e4cebc8b0ff6ba80493180a1d8af0096b
8 files changed
tree: 1cd347d7242fe21deaed66f0cc76a31424065d1b
  1. cold-redundancy/
  2. example/
  3. org/
  4. phosphor-regulators/
  5. power-sequencer/
  6. power-supply/
  7. services/
  8. test/
  9. tools/
  10. .clang-format
  11. .gitignore
  12. argument.hpp
  13. device.hpp
  14. device_monitor.hpp
  15. elog-errors.hpp
  16. file.hpp
  17. gpio.cpp
  18. gpio.hpp
  19. LICENSE
  20. MAINTAINERS
  21. meson.build
  22. meson_options.txt
  23. names_values.hpp
  24. pmbus.cpp
  25. pmbus.hpp
  26. README.md
  27. types.hpp
  28. utility.cpp
  29. utility.hpp
README.md

Code for detecting and analyzing power faults on Witherspoon.

To Build

To build this package, do the following steps:

    1. meson build
    2. ninja -C build

To clean the repository again run `rm -rf build`.

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",
  }