i40e devlink support

This document describes the devlink features implemented by the i40e device driver.

Parameters

Generic parameters implemented

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

devlink info versions implemented

Name	Type	範例	描述
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.