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- .. SPDX-License-Identifier: GPL-2.0
- ====================
- i40e devlink support
- ====================
- This document describes the devlink features implemented by the ``i40e``
- device driver.
- Parameters
- ==========
- .. list-table:: Generic parameters implemented
- :widths: 5 5 90
- * - Name
- - Mode
- - Notes
- * - ``max_mac_per_vf``
- - runtime
- - Controls the maximum number of MAC addresses a VF can use
- on i40e devices.
- By default (``0``), the driver enforces its internally calculated per-VF
- MAC filter limit, which is based on the number of allocated VFS.
- If set to a non-zero value, this parameter acts as a strict cap:
- the driver will use the user-provided value instead of its internal
- calculation.
- **Important notes:**
- - This value **must be set before enabling SR-IOV**.
- Attempting to change it while SR-IOV is enabled will return an error.
- - MAC filters are a **shared hardware resource** across all VFs.
- Setting a high value may cause other VFs to be starved of filters.
- - This value is a **Administrative policy**. The hardware may return
- errors when its absolute limit is reached, regardless of the value
- set here.
- The default value is ``0`` (internal calculation is used).
- Info versions
- =============
- The ``i40e`` driver reports the following versions
- .. list-table:: devlink info versions implemented
- :widths: 5 5 5 90
- * - Name
- - Type
- - Example
- - Description
- * - ``board.id``
- - fixed
- - K15190-000
- - The Product Board Assembly (PBA) identifier of the board.
- * - ``fw.mgmt``
- - running
- - 9.130
- - 2-digit version number of the management firmware that controls the
- PHY, link, etc.
- * - ``fw.mgmt.api``
- - running
- - 1.15
- - 2-digit version number of the API exported over the AdminQ by the
- management firmware. Used by the driver to identify what commands
- are supported.
- * - ``fw.mgmt.build``
- - running
- - 73618
- - Build number of the source for the management firmware.
- * - ``fw.undi``
- - running
- - 1.3429.0
- - Version of the Option ROM containing the UEFI driver. The version is
- reported in ``major.minor.patch`` format. The major version is
- incremented whenever a major breaking change occurs, or when the
- minor version would overflow. The minor version is incremented for
- non-breaking changes and reset to 1 when the major version is
- incremented. The patch version is normally 0 but is incremented when
- a fix is delivered as a patch against an older base Option ROM.
- * - ``fw.psid.api``
- - running
- - 9.30
- - Version defining the format of the flash contents.
- * - ``fw.bundle_id``
- - running
- - 0x8000e5f3
- - Unique identifier of the firmware image file that was loaded onto
- the device. Also referred to as the EETRACK identifier of the NVM.
|
