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Message-ID: <5df2a0a6-d99e-58c1-eb06-cac063b4024c@acm.org>
Date: Mon, 26 Feb 2018 09:17:22 -0600
From: Corey Minyard <minyard@....org>
To: Aishwarya Pant <aishpant@...il.com>, Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
openipmi-developer@...ts.sourceforge.net,
linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>
Cc: Julia Lawall <julia.lawall@...6.fr>
Subject: Re: [PATCH] char/ipmi: add documentation for sysfs interface
On 02/24/2018 03:06 AM, Aishwarya Pant wrote:
> This is an attempt to document the sysfs interface for the IPMI drivers.
> Descriptions were collected from v2.0 of the IPMI specification and from
> code comments.
>
> Signed-off-by: Aishwarya Pant <aishpant@...il.com>
Wow, you spent some time on this. It all looks accurate, it's in my tree.
Thanks,
-corey
> ---
> .../ABI/testing/sysfs-devices-platform-ipmi | 238 +++++++++++++++++++++
> 1 file changed, 238 insertions(+)
> create mode 100644 Documentation/ABI/testing/sysfs-devices-platform-ipmi
>
> diff --git a/Documentation/ABI/testing/sysfs-devices-platform-ipmi b/Documentation/ABI/testing/sysfs-devices-platform-ipmi
> new file mode 100644
> index 000000000000..2a781e7513b7
> --- /dev/null
> +++ b/Documentation/ABI/testing/sysfs-devices-platform-ipmi
> @@ -0,0 +1,238 @@
> +What: /sys/devices/platform/ipmi_bmc.*/firmware_revision
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) The major and minor revision of the firmware.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/aux_firmware_revision
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Holds additional information about the firmware revision,
> + such as boot block or internal data structure version numbers.
> + The meanings of the numbers are specific to the vendor
> + identified by Manufacturer ID.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/revision
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Device revision. Useful for identifying if significant
> + hardware changes have been made to the implementation of the
> + management controller.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/provides_device_sdrs
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Indicates whether device provides device sensor data
> + records (1) or not (0).
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/device_id
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Device id is specified by the manufacturer identified by
> + the Manufacturer ID field. This field allows controller specific
> + software to identify the unique application command, OEM
> + fields, and functionality that are provided by the controller
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/additional_device_support
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Lists the IPMI ‘logical device’ commands and functions
> + that the controller supports that are in addition to the
> + mandatory IPM and Application commands.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/ipmi_version
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Displays the IPMI Command Specification Version.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/manufacturer_id
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Identifies the manufacturer responsible for the
> + specification of functionality of the vendor (OEM)-specific
> + commands, codes, and interfaces used in the controller.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/product_id
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Displays a number that identifies a particular system,
> + module, add-in card, or board set. The number is specified
> + according to the manufacturer given by Manufacturer ID.
> +
> +For detailed definitions of the above attributes, refer to section 20.1 'Get
> +Device ID Command' of the IPMI specification v2.0.
> +
> +
> +What: /sys/devices/platform/ipmi_bmc.*/guid
> +Date: Mar, 2006
> +KernelVersion: v2.6.17
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) A GUID (Globally Unique ID), also referred to as a UUID
> + (Universally Unique Identifier), for the management controller,
> + as described in section 20.8 'Get Device GUID Command' of the
> + IPMI specification v2.0.
> +
> +
> +What: /sys/devices/platform/ipmi_si.*/type
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) The device interface for IPMI "kcs", "smic", "bt" or
> + "invalid"
> +
> +What: /sys/devices/platform/ipmi_si.*/idles
> +What: /sys/devices/platform/ipmi_si.*/watchdog_pretimeouts
> +What: /sys/devices/platform/ipmi_si.*/complete_transactions
> +What: /sys/devices/platform/ipmi_si.*/events
> +What: /sys/devices/platform/ipmi_si.*/interrupts
> +What: /sys/devices/platform/ipmi_si.*/hosed_count
> +What: /sys/devices/platform/ipmi_si.*/long_timeouts
> +What: /sys/devices/platform/ipmi_si.*/flag_fetches
> +What: /sys/devices/platform/ipmi_si.*/attentions
> +What: /sys/devices/platform/ipmi_si.*/incoming_messages
> +What: /sys/devices/platform/ipmi_si.*/short_timeouts
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> +
> + idles: (RO) Number of times the interface was
> + idle while being polled.
> +
> + watchdog_pretimeouts: (RO) Number of watchdog pretimeouts.
> +
> + complete_transactions: (RO) Number of completed messages.
> +
> + events: (RO) Number of IPMI events received from
> + the hardware.
> +
> + interrupts: (RO) Number of interrupts the driver
> + handled.
> +
> + hosed_count: (RO) Number of times the hardware didn't
> + follow the state machine.
> +
> + long_timeouts: (RO) Number of times the driver
> + requested a timer while nothing was in
> + progress.
> +
> + flag_fetches: (RO) Number of times the driver
> + requested flags from the hardware.
> +
> + attentions: (RO) Number of time the driver got an
> + ATTN from the hardware.
> +
> + incoming_messages: (RO) Number of asynchronous messages
> + received.
> +
> + short_timeouts: (RO) Number of times the driver
> + requested a timer while an operation was
> + in progress.
> +
> +
> +What: /sys/devices/platform/ipmi_si.*/interrupts_enabled
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Indicates whether interrupts are enabled or not. The driver
> + disables interrupts when it gets into a situation where it
> + cannot handle messages due to lack of memory. Once that
> + situation clears up, it will re-enable interrupts.
> +
> +
> +What: /sys/devices/platform/ipmi_si.*/params
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + [to be documented]
> +
> +
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/type
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + (RO) Shows the IMPI device interface type - "ssif" here.
> +
> +
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/hosed
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/alerts
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/sent_messages
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/sent_messages_parts
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/received_messages
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/received_message_parts
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/events
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/watchdog_pretimeouts
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/flag_fetches
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/send_retries
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/receive_retries
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/send_errors
> +What: /sys/devices/platform/dmi-ipmi-ssif.*/receive_errors
> +Date: Sep, 2017
> +KernelVersion: v4.15
> +Contact: openipmi-developer@...ts.sourceforge.net
> +Description:
> + hosed: (RO) Number of times the hardware didn't
> + follow the state machine.
> +
> + alerts: (RO) Number of alerts received.
> +
> + sent_messages: (RO) Number of total messages sent.
> +
> + sent_message_parts: (RO) Number of message parts sent.
> + Messages may be broken into parts if
> + they are long.
> +
> + receieved_messages: (RO) Number of message responses
> + received.
> +
> + received_message_parts: (RO) Number of message fragments
> + received.
> +
> + events: (RO) Number of received events.
> +
> + watchdog_pretimeouts: (RO) Number of watchdog pretimeouts.
> +
> + flag_fetches: (RO) Number of times a flag fetch was
> + requested.
> +
> + send_retries: (RO) Number of time a message was
> + retried.
> +
> + receive_retries: (RO) Number of times the receive of a
> + message was retried.
> +
> + send_errors: (RO) Number of times the send of a
> + message failed.
> +
> + receive_errors: (RO) Number of errors in receiving
> + messages.
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