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gerrit.openbmc.org / openbmc / phosphor-power / 5ace9fb733e0757f105c3f6d00128fd9f5dc7df3
commit5ace9fb733e0757f105c3f6d00128fd9f5dc7df3[log] [tgz]
authorFaisal Awada <faisal@us.ibm.com>Tue Jan 07 13:26:25 2025 -0600
committerFaisal Awada <faisal@us.ibm.com>Tue Jan 21 15:20:02 2025 -0600
treeec6a4e00b38a3c9de959c895f782c04c67abe45d
parent757ad6a91c0d18c750e83ffc4683df78be693f7b [diff]
psutils: Add necessary firmware update functions

doUpdate: Adds the main logic for orchestrating the PSU firmware update
process, including ISP setup, firmware download, and verification.

performI2cWriteReadWithRetries: Introduces functionality to perform I2C
write-read operations with configurable retries, and error handling for
robustness.

performI2cReadWrite: Provides the implementation for direct I2C
write-read operations with a customizable delay to ensure timing
requirements are met.

downloadPsuFirmware: Implements the functionality to read and process
PSU firmware in blocks, ensuring data integrity during transfer.

verifyDownloadFwStatus: Adds a mechanism to validate the success of
firmware downloads by checking the PSU's checksum status register.

getClassInstance: Add logic to dynamically instantiate updater class
based on PSU model.

Test:
 Placed latest firmware and MANIFEST files in "/usr/share/obmc/51E9"
 then retrieved the current PSU FW level. Ran "psutils" on the command
 line as follow:
 /usr/bin/psutils --update
  /xyz/openbmc_project/inventory/system/chassis/motherboard/powersupply1
  /usr/share/obmc/51E9

 Retrieved the FW level and verified the PSU FW was updated as
 expected.

    Signed-off-by: Faisal Awada <faisal@us.ibm.com>
Change-Id: I65d0c015eab0322110e85b954a38590332aaa67a
Signed-off-by: Faisal Awada <faisal@us.ibm.com>
5 files changed
tree: ec6a4e00b38a3c9de959c895f782c04c67abe45d
  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. compatible_system_types_finder.cpp
  17. compatible_system_types_finder.hpp
  18. dbus_interfaces_finder.cpp
  19. dbus_interfaces_finder.hpp
  20. device.hpp
  21. device_monitor.hpp
  22. elog-errors.hpp
  23. file_descriptor.hpp
  24. format_utils.hpp
  25. gpio.cpp
  26. gpio.hpp
  27. LICENSE
  28. meson.build
  29. meson.options
  30. names_values.hpp
  31. OWNERS
  32. pmbus.cpp
  33. pmbus.hpp
  34. README.md
  35. temporary_file.cpp
  36. temporary_file.hpp
  37. temporary_subdirectory.cpp
  38. temporary_subdirectory.hpp
  39. types.hpp
  40. utility.cpp
  41. utility.hpp
README.md

phosphor-power

Overview

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

Actively-maintained applications:

  • cold-redundancy: Application that makes power supplies work in Cold Redundancy mode and rotates them at intervals.
  • phosphor-power-sequencer: JSON-driven application that powers the chassis on/off and monitors the power sequencer device.
  • phosphor-power-supply: Next generation power supply monitoring application.
  • phosphor-regulators: JSON-driven application that configures and monitors voltage regulators.
  • tools/power-utils: Power supply utilities.

Legacy applications:

  • power-sequencer: Original power sequencer monitoring application.
  • power-supply: Original power supply monitoring application.

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/<driver>.<instance>/
    • 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",
  }