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devlink: convert driver-specific files to reStructuredText

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Several drivers document what parameters they support in
a devlink-params-*.txt file. This file is supposed to contain both the
list of generic parameters implemented by the driver, as well as a list
of driver-specific parameters and their descriptions.

It would also be good if the driver documentation included other
driver-specific implementations, such as info versions, devlink
regions, and so forth.

Convert all of these documentation files to reStructuredText, and rename
them to just the driver name. Future changes will include other
driver-specific implementations. Each file will contain a table for the
generic parameters implemented, as well as a separate table for the
driver-specific parameters.

Future sections such as for devlink info versions will be added to these
files. This avoids creating additional devlink-<feature>-<driver> files
for each devlink feature, reducing clutter in the documentation folder.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Tariq Toukan <tariqt@mellanox.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Leon Romanovsky <leonro@mellanox.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>
Cc: Jiri Pirko <jiri@mellanox.com>
Cc: Ido Schimmel <idosch@mellanox.com>
Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jacob Keller 2020-01-09 14:46:16 -08:00 committed by David S. Miller
parent 5948f85bbc
commit 6c39e015f8
15 changed files with 222 additions and 70 deletions
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2
Documentation/networking/device_drivers/ti/cpsw_switchdev.txt
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@ -39,7 +39,7 @@ but without enabling "switch" mode, or to different bridges.
Devlink configuration parameters
====================
See Documentation/networking/devlink-params-ti-cpsw-switch.txt
See Documentation/networking/devlink/ti-cpsw-switch.rst
====================
# Bridging in dual mac mode

41
Documentation/networking/devlink/bnxt.rst Normal file
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@ -0,0 +1,41 @@
.. SPDX-License-Identifier: GPL-2.0
====================
bnxt devlink support
====================
This document describes the devlink features implemented by the ``bnxt``
device driver.
Parameters
==========
.. list-table:: Generic parameters implemented
* - Name
- Mode
* - ``enable_sriov``
- Permanent
* - ``ignore_ari``
- Permanent
* - ``msix_vec_per_pf_max``
- Permanent
* - ``msix_vec_per_pf_min``
- Permanent
The ``bnxt`` driver also implements the following driver-specific
parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``gre_ver_check``
- Boolean
- Permanent
- Generic Routing Encapsulation (GRE) version check will be enabled in
the device. If disabled, the device will skip the version check for
incoming packets.

18
Documentation/networking/devlink/devlink-params-bnxt.txt
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@ -1,18 +0,0 @@
enable_sriov [DEVICE, GENERIC]
Configuration mode: Permanent
ignore_ari [DEVICE, GENERIC]
Configuration mode: Permanent
msix_vec_per_pf_max [DEVICE, GENERIC]
Configuration mode: Permanent
msix_vec_per_pf_min [DEVICE, GENERIC]
Configuration mode: Permanent
gre_ver_check [DEVICE, DRIVER-SPECIFIC]
Generic Routing Encapsulation (GRE) version check will
be enabled in the device. If disabled, device skips
version checking for incoming packets.
Type: Boolean
Configuration mode: Permanent

17
Documentation/networking/devlink/devlink-params-mlx5.txt
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@ -1,17 +0,0 @@
flow_steering_mode [DEVICE, DRIVER-SPECIFIC]
Controls the flow steering mode of the driver.
Two modes are supported:
1. 'dmfs' - Device managed flow steering.
2. 'smfs - Software/Driver managed flow steering.
In DMFS mode, the HW steering entities are created and
managed through the Firmware.
In SMFS mode, the HW steering entities are created and
managed though by the driver directly into Hardware
without firmware intervention.
Type: String
Configuration mode: runtime
enable_roce [DEVICE, GENERIC]
Enable handling of RoCE traffic in the device.
Defaultly enabled.
Configuration mode: driverinit

10
Documentation/networking/devlink/devlink-params-mlxsw.txt
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@ -1,10 +0,0 @@
fw_load_policy [DEVICE, GENERIC]
Configuration mode: driverinit
acl_region_rehash_interval [DEVICE, DRIVER-SPECIFIC]
Sets an interval for periodic ACL region rehashes.
The value is in milliseconds, minimal value is "3000".
Value "0" disables the periodic work.
The first rehash will be run right after value is set.
Type: u32
Configuration mode: runtime

7
Documentation/networking/devlink/devlink-params-mv88e6xxx.txt
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@ -1,7 +0,0 @@
ATU_hash [DEVICE, DRIVER-SPECIFIC]
Select one of four possible hashing algorithms for
MAC addresses in the Address Translation Unit.
A value of 3 seems to work better than the default of
1 when many MAC addresses have the same OUI.
Configuration mode: runtime
Type: u8. 0-3 valid.

5
Documentation/networking/devlink/devlink-params-nfp.txt
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@ -1,5 +0,0 @@
fw_load_policy [DEVICE, GENERIC]
Configuration mode: permanent
reset_dev_on_drv_probe [DEVICE, GENERIC]
Configuration mode: permanent

10
Documentation/networking/devlink/devlink-params-ti-cpsw-switch.txt
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@ -1,10 +0,0 @@
ale_bypass [DEVICE, DRIVER-SPECIFIC]
Allows to enable ALE_CONTROL(4).BYPASS mode for debug purposes.
All packets will be sent to the Host port only if enabled.
Type: bool
Configuration mode: runtime
switch_mode [DEVICE, DRIVER-SPECIFIC]
Enable switch mode
Type: bool
Configuration mode: runtime

22
Documentation/networking/devlink/index.rst
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@ -4,7 +4,11 @@ Linux Devlink Documentation
devlink is an API to expose device information and resources not directly
related to any device class, such as chip-wide/switch-ASIC-wide configuration.
Contents:
Interface documentation
-----------------------
The following pages describe various interfaces available through devlink in
general.
.. toctree::
:maxdepth: 1
@ -14,3 +18,19 @@ Contents:
devlink-params
devlink-trap
devlink-trap-netdevsim
Driver-specific documentation
-----------------------------
Each driver that implements ``devlink`` is expected to document what
parameters, info versions, and other features it supports.
.. toctree::
:maxdepth: 1
bnxt
mlx5
mlxsw
mv88e6xxx
nfp
ti-cpsw-switch

41
Documentation/networking/devlink/mlx5.rst Normal file
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@ -0,0 +1,41 @@
.. 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
* - ``enable_roce``
- driverinit
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.
The ``mlx5`` driver supports reloading via ``DEVLINK_CMD_RELOAD``

38
Documentation/networking/devlink/mlxsw.rst Normal file
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@ -0,0 +1,38 @@
.. SPDX-License-Identifier: GPL-2.0
=====================
mlxsw devlink support
=====================
This document describes the devlink features implemented by the ``mlxsw``
device driver.
Parameters
==========
.. list-table:: Generic parameters implemented
* - Name
- Mode
* - ``fw_load_policy``
- driverinit
The ``mlxsw`` driver also implements the following driver-specific
parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``acl_region_rehash_interval``
- u32
- runtime
- Sets an interval for periodic ACL region rehashes. The value is
specified in milliseconds, with a minimum of ``3000``. The value of
``0`` disables periodic work entirely. The first rehash will be run
immediately after the value is set.
The ``mlxsw`` driver supports reloading via ``DEVLINK_CMD_RELOAD``

28
Documentation/networking/devlink/mv88e6xxx.rst Normal file
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@ -0,0 +1,28 @@
.. SPDX-License-Identifier: GPL-2.0
=========================
mv88e6xxx devlink support
=========================
This document describes the devlink features implemented by the ``mv88e6xxx``
device driver.
Parameters
==========
The ``mv88e6xxx`` driver implements the following driver-specific parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``ATU_hash``
- u8
- runtime
- Select one of four possible hashing algorithms for MAC addresses in
the Address Translation Unit. A value of 3 may work better than the
default of 1 when many MAC addresses have the same OUI. Only the
values 0 to 3 are valid for this parameter.

20
Documentation/networking/devlink/nfp.rst Normal file
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@ -0,0 +1,20 @@
.. SPDX-License-Identifier: GPL-2.0
===================
nfp devlink support
===================
This document describes the devlink features implemented by the ``nfp``
device driver.
Parameters
==========
.. list-table:: Generic parameters implemented
* - Name
- Mode
* - ``fw_load_policy``
- permanent
* - ``reset_dev_on_drv_probe``
- permanent

31
Documentation/networking/devlink/ti-cpsw-switch.rst Normal file
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@ -0,0 +1,31 @@
.. SPDX-License-Identifier: GPL-2.0
==============================
ti-cpsw-switch devlink support
==============================
This document describes the devlink features implemented by the ``ti-cpsw-switch``
device driver.
Parameters
==========
The ``ti-cpsw-switch`` driver implements the following driver-specific
parameters.
.. list-table:: Driver-specific parameters implemented
:widths: 5 5 5 85
* - Name
- Type
- Mode
- Description
* - ``ale_bypass``
- Boolean
- runtime
- Enables ALE_CONTROL(4).BYPASS mode for debugging purposes. In this
mode, all packets will be sent to the host port only.
* - ``switch_mode``
- Boolean
- runtime
- Enable switch mode

2
MAINTAINERS
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@ -9890,7 +9890,7 @@ S: Maintained
F: drivers/net/dsa/mv88e6xxx/
F: include/linux/platform_data/mv88e6xxx.h
F: Documentation/devicetree/bindings/net/dsa/marvell.txt
F: Documentation/networking/devlink-params-mv88e6xxx.txt
F: Documentation/networking/devlink/mv88e6xxx.rst
MARVELL ARMADA DRM SUPPORT
M: Russell King <linux@armlinux.org.uk>