path: root/doc/source/admin/drivers/irmc.rst

.. _irmc:

===========
iRMC driver
===========

Overview
========

The iRMC driver enables control FUJITSU PRIMERGY via ServerView
Common Command Interface (SCCI). Support for FUJITSU PRIMERGY servers consists
of the ``irmc`` hardware type and a few hardware interfaces specific for that
hardware type.

Prerequisites
=============

* Install `python-scciclient <https://pypi.org/project/python-scciclient>`_
  and `pysnmp <https://pypi.org/project/pysnmp>`_ packages::

  $ pip install "python-scciclient>=0.7.2" pysnmp

Hardware Type
=============

The ``irmc`` hardware type is available for FUJITSU PRIMERGY servers. For
information on how to enable the ``irmc`` hardware type, see
:ref:`enable-hardware-types`.

Hardware interfaces
^^^^^^^^^^^^^^^^^^^

The ``irmc`` hardware type overrides the selection of the following
hardware interfaces:

* bios
    Supports  ``irmc`` and ``no-bios``.
    The default is ``irmc``.

* boot
    Supports ``irmc-virtual-media``, ``irmc-pxe``, and ``pxe``.
    The default is ``irmc-virtual-media``. The ``irmc-virtual-media`` boot
    interface enables the virtual media based deploy with IPA (Ironic Python
    Agent).

    .. warning::
       We deprecated the ``pxe`` boot interface when used with ``irmc``
       hardware type. Support for this interface will be removed in the
       future. Instead, use ``irmc-pxe``. ``irmc-pxe`` boot interface
       was introduced in Pike.

* console
    Supports ``ipmitool-socat``, ``ipmitool-shellinabox``, and ``no-console``.
    The default is ``ipmitool-socat``.

* inspect
    Supports ``irmc``, ``inspector``, and ``no-inspect``.
    The default is ``irmc``.

    .. note::
       :ironic-inspector-doc:`Ironic Inspector <>`
       needs to be present and configured to use ``inspector`` as the
       inspect interface.

* management
    Supports only ``irmc``.

* power
    Supports ``irmc``, which enables power control via ServerView Common
    Command Interface (SCCI), by default. Also supports ``ipmitool``.

* raid
    Supports  ``irmc``, ``no-raid`` and ``agent``.
    The default is ``no-raid``.

For other hardware interfaces, ``irmc`` hardware type supports the
Bare Metal reference interfaces. For more details about the hardware
interfaces and how to enable the desired ones, see
:ref:`enable-hardware-interfaces`.

Here is a complete configuration example with most of the supported hardware
interfaces enabled for ``irmc`` hardware type.

.. code-block:: ini

   [DEFAULT]
   enabled_hardware_types = irmc
   enabled_bios_interfaces = irmc
   enabled_boot_interfaces = irmc-virtual-media,irmc-pxe
   enabled_console_interfaces = ipmitool-socat,ipmitool-shellinabox,no-console
   enabled_deploy_interfaces = direct
   enabled_inspect_interfaces = irmc,inspector,no-inspect
   enabled_management_interfaces = irmc
   enabled_network_interfaces = flat,neutron
   enabled_power_interfaces = irmc
   enabled_raid_interfaces = no-raid,irmc
   enabled_storage_interfaces = noop,cinder
   enabled_vendor_interfaces = no-vendor,ipmitool

Here is a command example to enroll a node with ``irmc`` hardware type.

.. code-block:: console

   baremetal node create \
      --bios-interface irmc \
      --boot-interface irmc-pxe \
      --deploy-interface direct \
      --inspect-interface irmc  \
      --raid-interface irmc

Node configuration
^^^^^^^^^^^^^^^^^^

Configuration via ``driver_info``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

* Each node is configured for ``irmc`` hardware type by setting the following
  ironic node object's properties:

  - ``driver_info/irmc_address`` property to be ``IP address`` or
    ``hostname`` of the iRMC.
  - ``driver_info/irmc_username`` property to be ``username`` for
    the iRMC with administrator privileges.
  - ``driver_info/irmc_password`` property to be ``password`` for
    irmc_username.

  .. note::
     Fujitsu server equipped with iRMC S6 2.00 or later version of firmware
     disables IPMI over LAN by default. However user may be able to enable IPMI
     via BMC settings.
     To handle this change, ``irmc`` hardware type first tries IPMI and,
     if IPMI operation fails, ``irmc`` hardware type uses Redfish API of Fujitsu
     server to provide Ironic functionalities.
     So if user deploys Fujitsu server with iRMC S6 2.00 or later, user needs
     to set Redfish related parameters in ``driver_info``.

  - ``driver_info/redifsh_address`` property to be ``IP address`` or
    ``hostname`` of the iRMC. You can prefix it with protocol (e.g.
    ``https://``). If you don't provide protocol, Ironic assumes HTTPS
    (i.e. add ``https://`` prefix).
    iRMC with S6 2.00 or later only support HTTPS connection to Redfish API.
  - ``driver_info/redfish_username`` to be user name of iRMC with administrative
    privileges
  - ``driver_info/redfish_password`` to be password of ``redfish_username``
  - ``driver_info/redfish_verify_ca`` accepts values those accepted in
    ``driver_info/irmc_verify_ca``
  - ``driver_info/redfish_auth_type`` to be one of ``basic``, ``session`` or
    ``auto``

* If ``port`` in ``[irmc]`` section of ``/etc/ironic/ironic.conf`` or
  ``driver_info/irmc_port`` is set to 443, ``driver_info/irmc_verify_ca``
  will take effect:

  ``driver_info/irmc_verify_ca`` property takes one of 4 value (default value
  is ``True``):

  - ``True``: When set to ``True``, which certification file iRMC driver uses
    is determined by ``requests`` Python module.

    Value of ``driver_info/irmc_verify_ca`` is passed to ``verify`` argument
    of functions defined in ``requests`` Python module. So which certification
    will be used is depend on behavior of ``requests`` module.
    (maybe certification provided by ``certifi`` Python module)

  - ``False``: When set to ``False``, iRMC driver won't verify server
    certification with certification file during HTTPS connection with iRMC.
    Just stop to verify server certification, but does HTTPS.

    .. warning::
       When set to ``False``, user must notice that it can result in
       vulnerable situation. Stopping verification of server certification
       during HTTPS connection means it cannot prevent Man-in-the-middle
       attack. When set to ``False``, Ironic user must take enough care
       around infrastructure environment in terms of security.
       (e.g. make sure network between Ironic conductor and iRMC is secure)

  - string representing filesystem path to directory which contains
    certification file:  In this case, iRMC driver uses certification file
    stored at specified directory. Ironic conductor must be able to access
    that directory. For iRMC to recongnize certification file, Ironic user
    must run ``openssl rehash <path_to_dir>``.

  - string representing filesystem path to certification file: In this case,
    iRMC driver uses certification file specified. Ironic conductor must have
    access to that file.


* The following properties are also required if ``irmc-virtual-media`` boot
  interface is used:

  - ``driver_info/deploy_iso`` property to be either deploy iso
    file name, Glance UUID, or Image Service URL.
  - ``instance info/boot_iso`` property to be either boot iso
    file name, Glance UUID, or Image Service URL. This is used
    with the ``ramdisk`` deploy interface.

  .. note::
     The ``deploy_iso`` and ``boot_iso`` properties used to be called
     ``irmc_deploy_iso`` and ``irmc_boot_iso`` accordingly before the Xena
     release.

* The following properties are also required if ``irmc`` inspect interface is
  enabled and SNMPv3 inspection is desired.

  - ``driver_info/irmc_snmp_user`` property to be the SNMPv3 username. SNMPv3
    functionality should be enabled for this user on iRMC server side.
  - ``driver_info/irmc_snmp_auth_password`` property to be the auth protocol
    pass phrase. The length of pass phrase should be at least 8 characters.
  - ``driver_info/irmc_snmp_priv_password`` property to be the privacy protocol
    pass phrase. The length of pass phrase should be at least 8 characters.


Configuration via ``properties``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

* Each node is configured for ``irmc`` hardware type by setting the following
  ironic node object's properties:

  - ``properties/capabilities`` property to be ``boot_mode:uefi`` if
    UEFI boot is required, or ``boot_mode:bios`` if Legacy BIOS is required.
    If this is not set, ``default_boot_mode`` at ``[default]`` section in
    ``ironic.conf`` will be used.
  - ``properties/capabilities`` property to be ``secure_boot:true`` if
    UEFI Secure Boot is required. Please refer to `UEFI Secure Boot Support`_
    for more information.


Configuration via ``ironic.conf``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

* All of the nodes are configured by setting the following configuration
  options in the ``[irmc]`` section of ``/etc/ironic/ironic.conf``:

  - ``port``: Port to be used for iRMC operations; either 80
    or 443. The default value is 443. Optional.

    .. note::
       Since iRMC S6 2.00, iRMC firmware doesn't support HTTP connection to
       REST API. If you deploy server with iRMS S6 2.00 and later, please
       set ``port`` to 443.

       ``irmc`` hardware type provides ``verify_step`` named
       ``verify_http_https_connection_and_fw_version`` to check HTTP(S)
       connection to iRMC REST API. If HTTP(S) connection is successfully
       established, then it fetches and caches iRMC firmware version.
       If HTTP(S) connection to iRMC REST API failed, Ironic node's state
       moves to ``enroll`` with suggestion put in log message.
       Default priority of this verify step is 10.

       If operator updates iRMC firmware version of node, operator should
       run ``cache_irmc_firmware_version`` node vendor passthru method
       to update iRMC firmware version stored in
       ``driver_internal_info/irmc_fw_version``.

  - ``auth_method``: Authentication method for iRMC operations;
    either ``basic`` or ``digest``. The default value is ``basic``. Optional.
  - ``client_timeout``: Timeout (in seconds) for iRMC
    operations. The default value is 60. Optional.
  - ``sensor_method``: Sensor data retrieval method; either
    ``ipmitool`` or ``scci``. The default value is ``ipmitool``. Optional.

* The following options are required if ``irmc-virtual-media`` boot
  interface is enabled:

  - ``remote_image_share_root``: Ironic conductor node's ``NFS`` or
    ``CIFS`` root path. The default value is ``/remote_image_share_root``.
  - ``remote_image_server``: IP of remote image server.
  - ``remote_image_share_type``: Share type of virtual media, either
    ``NFS`` or ``CIFS``. The default is ``CIFS``.
  - ``remote_image_share_name``: share name of ``remote_image_server``.
    The default value is ``share``.
  - ``remote_image_user_name``: User name of ``remote_image_server``.
  - ``remote_image_user_password``: Password of ``remote_image_user_name``.
  - ``remote_image_user_domain``: Domain name of ``remote_image_user_name``.

* The following options are required if ``irmc`` inspect interface is enabled:

  - ``snmp_version``: SNMP protocol version; either ``v1``, ``v2c`` or
    ``v3``. The default value is ``v2c``. Optional.
  - ``snmp_port``: SNMP port. The default value is ``161``. Optional.
  - ``snmp_community``: SNMP community required for versions ``v1``
    and ``v2c``. The default value is ``public``. Optional.
  - ``snmp_security``: SNMP security name required for version ``v3``.
    Optional.
  - ``snmp_auth_proto``: The SNMPv3 auth protocol. If using iRMC S4 or S5, the
    valid value of this option is only ``sha``. If using iRMC S6, the valid
    values are ``sha256``, ``sha384`` and ``sha512``. The default value is
    ``sha``. Optional.
  - ``snmp_priv_proto``: The SNMPv3 privacy protocol. The valid value and
    the default value are both ``aes``. We will add more supported valid values
    in the future. Optional.

    .. warning::
       We deprecated the ``snmp_security`` option when use SNMPv3 inspection.
       Support for this option will be removed in the future. Instead, set
       ``driver_info/irmc_snmp_user`` parameter for each node if SNMPv3
       inspection is needed.


Override ``ironic.conf`` configuration via ``driver_info``
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

* Each node can be further configured by setting the following ironic
  node object's properties which override the parameter values in
  ``[irmc]`` section of ``/etc/ironic/ironic.conf``:

  - ``driver_info/irmc_port`` property overrides ``port``.
  - ``driver_info/irmc_auth_method`` property overrides ``auth_method``.
  - ``driver_info/irmc_client_timeout`` property overrides ``client_timeout``.
  - ``driver_info/irmc_sensor_method`` property overrides ``sensor_method``.
  - ``driver_info/irmc_snmp_version`` property overrides ``snmp_version``.
  - ``driver_info/irmc_snmp_port`` property overrides ``snmp_port``.
  - ``driver_info/irmc_snmp_community`` property overrides ``snmp_community``.
  - ``driver_info/irmc_snmp_security`` property overrides ``snmp_security``.
  - ``driver_info/irmc_snmp_auth_proto`` property overrides
    ``snmp_auth_proto``.
  - ``driver_info/irmc_snmp_priv_proto`` property overrides
    ``snmp_priv_proto``.


Optional functionalities for the ``irmc`` hardware type
=======================================================

UEFI Secure Boot Support
^^^^^^^^^^^^^^^^^^^^^^^^
The hardware type ``irmc`` supports secure boot deploy, see :ref:`secure-boot`
for details.

.. warning::
     Secure boot feature is not supported with ``pxe`` boot interface.

.. _irmc_node_cleaning:

Node Cleaning Support
^^^^^^^^^^^^^^^^^^^^^
The ``irmc`` hardware type supports node cleaning.
For more information on node cleaning, see :ref:`cleaning`.

Supported **Automated** Cleaning Operations
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

The automated cleaning operations supported are:

* ``restore_irmc_bios_config``:
  Restores BIOS settings on a baremetal node from backup data. If this
  clean step is enabled, the BIOS settings of a baremetal node will be
  backed up automatically before the deployment. By default, this clean
  step is disabled with priority ``0``. Set its priority to a positive
  integer to enable it. The recommended value is ``10``.

  .. warning::
     ``pxe`` boot interface, when used with ``irmc`` hardware type, does
     not support this clean step. If uses ``irmc`` hardware type, it is
     required to select ``irmc-pxe`` or ``irmc-virtual-media`` as the
     boot interface in order to make this clean step work.


Configuration options for the automated cleaning steps are listed under
``[irmc]`` section in ironic.conf ::

  clean_priority_restore_irmc_bios_config = 0

For more information on node automated cleaning, see :ref:`automated_cleaning`

Boot from Remote Volume
^^^^^^^^^^^^^^^^^^^^^^^
The ``irmc`` hardware type supports the generic PXE-based remote volume
booting when using the following boot interfaces:

* ``irmc-pxe``
* ``pxe``

In addition, the ``irmc`` hardware type supports remote volume booting without
PXE. This is available when using the ``irmc-virtual-media`` boot interface.
This feature configures a node to boot from a remote volume by using the API
of iRMC. It supports iSCSI and FibreChannel.

Configuration
~~~~~~~~~~~~~

In addition to the configuration for generic drivers to
:ref:`remote volume boot <boot-from-volume>`,
the iRMC driver requires the following configuration:

* It is necessary to set physical port IDs to network ports and volume
  connectors. All cards including those not used for volume boot should be
  registered.

  The format of a physical port ID is: ``<Card Type><Slot No>-<Port No>`` where:

  - ``<Card Type>``: could be ``LAN``, ``FC`` or ``CNA``
  - ``<Slot No>``: 0 indicates onboard slot. Use 1 to 9 for add-on slots.
  - ``<Port No>``: A port number starting from 1.

  These IDs are specified in a node's ``driver_info[irmc_pci_physical_ids]``.
  This value is a dictionary. The key is the UUID of a resource (Port or Volume
  Connector) and its value is the physical port ID. For example::

    {
      "1ecd14ee-c191-4007-8413-16bb5d5a73a2":"LAN0-1",
      "87f6c778-e60e-4df2-bdad-2605d53e6fc0":"CNA1-1"
    }

  It can be set with the following command::

      baremetal node set $NODE_UUID \
      --driver-info irmc_pci_physical_ids={} \
      --driver-info irmc_pci_physical_ids/$PORT_UUID=LAN0-1 \
      --driver-info irmc_pci_physical_ids/$VOLUME_CONNECTOR_UUID=CNA1-1

* For iSCSI boot, volume connectors with both types ``iqn`` and ``ip`` are
  required. The configuration with DHCP is not supported yet.

* For iSCSI, the size of the storage network is needed. This value should be
  specified in a node's ``driver_info[irmc_storage_network_size]``. It must be
  a positive integer < 32.
  For example, if the storage network is 10.2.0.0/22, use the following
  command::

    baremetal node set $NODE_UUID --driver-info irmc_storage_network_size=22

Supported hardware
~~~~~~~~~~~~~~~~~~

The driver supports the PCI controllers, Fibrechannel Cards, Converged Network
Adapters supported by
`Fujitsu ServerView Virtual-IO Manager <http://www.fujitsu.com/fts/products/computing/servers/primergy/management/primergy-blade-server-io-virtualization.html>`_.

Hardware Inspection Support
^^^^^^^^^^^^^^^^^^^^^^^^^^^

The ``irmc`` hardware type provides the iRMC-specific hardware inspection
with ``irmc`` inspect interface.

.. note::
   SNMP requires being enabled in ServerView® iRMC S4 Web Server(Network
   Settings\SNMP section).

Configuration
~~~~~~~~~~~~~

The Hardware Inspection Support in the iRMC driver requires the following
configuration:

* It is necessary to set ironic configuration with ``gpu_ids`` and
  ``fpga_ids`` options in ``[irmc]`` section.

  ``gpu_ids`` and ``fpga_ids`` are lists of ``<vendorID>/<deviceID>`` where:

  - ``<vendorID>``: 4 hexadecimal digits starts with '0x'.
  - ``<deviceID>``: 4 hexadecimal digits starts with '0x'.

  Here are sample values for ``gpu_ids`` and ``fpga_ids``::

    gpu_ids = 0x1000/0x0079,0x2100/0x0080
    fpga_ids = 0x1000/0x005b,0x1100/0x0180

* The python-scciclient package requires pyghmi version >= 1.0.22 and pysnmp
  version >= 4.2.3. They are used by the conductor service on the conductor.
  The latest version of pyghmi can be downloaded from `here
  <https://pypi.org/project/pyghmi/>`__
  and pysnmp can be downloaded from `here
  <https://pypi.org/project/pysnmp/>`__.

Supported properties
~~~~~~~~~~~~~~~~~~~~

The inspection process will discover the following properties:

* ``memory_mb``: memory size

* ``cpu_arch``: cpu architecture

* ``local_gb``: disk size

Inspection can also discover the following extra capabilities for iRMC
driver:

* ``irmc_firmware_version``: iRMC firmware version

* ``rom_firmware_version``: ROM firmware version

* ``server_model``: server model

* ``pci_gpu_devices``: number of gpu devices connected to the bare metal.

Inspection can also set/unset node's traits with the following cpu type for
iRMC driver:

* ``CUSTOM_CPU_FPGA``: The bare metal contains fpga cpu type.

.. note::

   * The disk size is returned only when eLCM License for FUJITSU PRIMERGY
     servers is activated. If the license is not activated, then Hardware
     Inspection will fail to get this value.
   * Before inspecting, if the server is power-off, it will be turned on
     automatically. System will wait for a few second before start
     inspecting. After inspection, power status will be restored to the
     previous state.

The operator can specify these capabilities in compute service flavor, for
example::

  openstack flavor set baremetal-flavor-name --property capabilities:irmc_firmware_version="iRMC S4-8.64F"

  openstack flavor set baremetal-flavor-name --property capabilities:server_model="TX2540M1F5"

  openstack flavor set baremetal-flavor-name --property capabilities:pci_gpu_devices="1"

See :ref:`capabilities-discovery` for more details and examples.

The operator can add a trait in compute service flavor, for example::

  baremetal node add trait $NODE_UUID CUSTOM_CPU_FPGA

A valid trait must be no longer than 255 characters. Standard traits are
defined in the os_traits library. A custom trait must start with the prefix
``CUSTOM_`` and use the following characters: A-Z, 0-9 and _.

RAID configuration Support
^^^^^^^^^^^^^^^^^^^^^^^^^^

The ``irmc`` hardware type provides the iRMC RAID configuration with ``irmc``
raid interface.

.. note::

   * RAID implementation for ``irmc`` hardware type is based on eLCM license
     and SDCard. Otherwise, SP(Service Platform) in lifecycle management
     must be available.
   * RAID implementation only supported for RAIDAdapter 0 in Fujitsu Servers.

Configuration
~~~~~~~~~~~~~

The RAID configuration Support in the iRMC drivers requires the following
configuration:

* It is necessary to set ironic configuration into Node with
  JSON file option::

    $ baremetal node set <node-uuid-or-name> \
      --target-raid-config <JSON file containing target RAID configuration>

  Here is some sample values for JSON file::

    {
        "logical_disks": [
            {
                "size_gb": 1000,
                "raid_level": "1"
        ]
    }

  or::

    {
        "logical_disks": [
            {
                "size_gb": 1000,
                "raid_level": "1",
                "controller": "FTS RAID Ctrl SAS 6G 1GB (D3116C) (0)",
                "physical_disks": [
                    "0",
                    "1"
                ]
            }
        ]
    }

.. note::

    RAID 1+0 and 5+0 in iRMC driver does not support property ``physical_disks``
    in ``target_raid_config`` during create raid configuration yet. See
    following example::

        {
          "logical_disks":
            [
              {
                "size_gb": "MAX",
                "raid_level": "1+0"
              }
            ]
        }

See :ref:`raid` for more details and examples.

Supported properties
~~~~~~~~~~~~~~~~~~~~

The RAID configuration using iRMC driver supports following parameters in
JSON file:

* ``size_gb``: is mandatory properties in Ironic.
* ``raid_level``: is mandatory properties in Ironic. Currently, iRMC Server
  supports following RAID levels: 0, 1, 5, 6, 1+0 and 5+0.
* ``controller``: is name of the controller as read by the RAID interface.
* ``physical_disks``: are specific values for each raid array in
  LogicalDrive which operator want to set them along with ``raid_level``.

The RAID configuration is supported as a manual cleaning step.

.. note::

   * iRMC server will power-on after create/delete raid configuration is
     applied, FGI (Foreground Initialize) will process raid configuration in
     iRMC server, thus the operation will completed upon power-on and power-off
     when created RAID on iRMC server.

See :ref:`raid` for more details and examples.

BIOS configuration Support
^^^^^^^^^^^^^^^^^^^^^^^^^^

The ``irmc`` hardware type provides the iRMC BIOS configuration with ``irmc``
bios interface.

.. warning::
     ``irmc`` bios interface does not support ``factory_reset``.

     Starting from version ``0.10.0`` of ``python-scciclient``,
     the BIOS setting obtained may not be the latest. If you want to get the latest BIOS setting,
     you need to delete the existing BIOS profile in iRMC. For example::

       curl -u user:pass -H "Content-type: application/json" -X DELETE -i http://192.168.0.1/rest/v1/Oem/eLCM/ProfileManagement/BiosConfig

Configuration
~~~~~~~~~~~~~

The BIOS configuration in the iRMC driver supports the following settings:

- ``boot_option_filter``: Specifies from which drives can be booted. This
  supports following options: ``UefiAndLegacy``, ``LegacyOnly``, ``UefiOnly``.
- ``check_controllers_health_status_enabled``: The UEFI FW checks the
  controller health status. This supports following options: ``true``, ``false``.
- ``cpu_active_processor_cores``: The number of active processor cores 1...n.
  Option 0 indicates that all available processor cores are active.
- ``cpu_adjacent_cache_line_prefetch_enabled``: The processor loads the requested
  cache line and the adjacent cache line. This supports following options:
  ``true``, ``false``.
- ``cpu_vt_enabled``: Supports the virtualization of platform hardware and
  several software environments, based on Virtual Machine Extensions to
  support the use of several software environments using virtual computers.
  This supports following options: ``true``, ``false``.
- ``flash_write_enabled``: The system BIOS can be written. Flash BIOS update
  is possible. This supports following options: ``true``, ``false``.
- ``hyper_threading_enabled``: Hyper-threading technology allows a single
  physical processor core to appear as several logical processors. This
  supports following options: ``true``, ``false``.
- ``keep_void_boot_options_enabled``: Boot Options will not be removed from
  "Boot Option Priority" list. This supports following options: ``true``,
  ``false``.
- ``launch_csm_enabled``: Specifies whether the Compatibility Support Module
  (CSM) is executed. This supports following options: ``true``, ``false``.
- ``os_energy_performance_override_enabled``: Prevents the OS from overruling
  any energy efficiency policy setting of the setup. This supports following
  options: ``true``, ``false``.
- ``pci_aspm_support``: Active State Power Management (ASPM) is used to
  power-manage the PCI Express links, thus consuming less power. This
  supports following options: ``Disabled``, ``Auto``, ``L0Limited``,
  ``L1only``, ``L0Force``.
- ``pci_above_4g_decoding_enabled``: Specifies if memory resources above the
  4GB address boundary can be assigned to PCI devices. This supports
  following options: ``true``, ``false``.
- ``power_on_source``: Specifies whether the switch on sources for the system
  are managed by the BIOS or the ACPI operating system. This supports
  following options: ``BiosControlled``, ``AcpiControlled``.
- ``single_root_io_virtualization_support_enabled``: Single Root IO
  Virtualization Support is active. This supports following
  options: ``true``, ``false``.

The BIOS configuration is supported as a manual cleaning step. See :ref:`bios`
for more details and examples.

Supported platforms
===================
This driver supports FUJITSU PRIMERGY RX M4 servers and above.

When ``irmc`` power interface is used, Soft Reboot (Graceful Reset) and Soft
Power Off (Graceful Power Off) are only available if
`ServerView agents <http://manuals.ts.fujitsu.com/index.php?id=5406-5873-5925-5945-16159>`_
are installed. See `iRMC S4 Manual <http://manuals.ts.fujitsu.com/index.php?id=5406-5873-5925-5988>`_
for more details.

RAID configuration feature supports FUJITSU PRIMERGY servers with
RAID-Ctrl-SAS-6G-1GB(D3116C) controller and above.
For detail supported controller with OOB-RAID configuration, please see
`the whitepaper for iRMC RAID configuration <http://manuals.ts.fujitsu.com/file/12073/wp-svs-oob-raid-hdd-en.pdf>`_.