https://github.com/torvalds/linux
- HEAD
- refs/heads/arm64-uaccess
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/certifi-2024.7.4
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/idna-3.7
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/requests-2.32.2
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/setuptools-70.0.0
- refs/heads/dependabot/pip/drivers/gpu/drm/ci/xfails/urllib3-2.2.2
- refs/heads/master
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Tip revision: f443e374ae131c168a065ea1748feac6b2e76613 authored by Linus Torvalds on 20 March 2022, 20:14:17 UTC
Linux 5.17
Linux 5.17
Tip revision: f443e37
mlx5.rst
.. SPDX-License-Identifier: GPL-2.0
====================
mlx5 devlink support
====================
This document describes the devlink features implemented by the ``mlx5``
device driver.
Parameters
==========
.. list-table:: Generic parameters implemented
* - Name
- Mode
- Validation
* - ``enable_roce``
- driverinit
- Type: Boolean
* - ``io_eq_size``
- driverinit
- The range is between 64 and 4096.
* - ``event_eq_size``
- driverinit
- The range is between 64 and 4096.
* - ``max_macs``
- driverinit
- The range is between 1 and 2^31. Only power of 2 values are supported.
The ``mlx5`` driver also implements the following driver-specific
parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``flow_steering_mode``
- string
- runtime
- Controls the flow steering mode of the driver
* ``dmfs`` Device managed flow steering. In DMFS mode, the HW
steering entities are created and managed through firmware.
* ``smfs`` Software managed flow steering. In SMFS mode, the HW
steering entities are created and manage through the driver without
firmware intervention.
* - ``fdb_large_groups``
- u32
- driverinit
- Control the number of large groups (size > 1) in the FDB table.
* The default value is 15, and the range is between 1 and 1024.
The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD``
Info versions
=============
The ``mlx5`` driver reports the following versions
.. list-table:: devlink info versions implemented
:widths: 5 5 90
* - Name
- Type
- Description
* - ``fw.psid``
- fixed
- Used to represent the board id of the device.
* - ``fw.version``
- stored, running
- Three digit major.minor.subminor firmware version number.