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linux/Documentation/networking/devlink/mlxsw.rst

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devlink: convert driver-specific files to reStructuredText 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>
2020-01-09 15:46:16 -07:00
.. 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``
devlink: document info versions for each driver Add the set of info versions reported by each device driver, including a description of what the version represents, and what modes (fixed, running, stored) it reports. 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: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-09 15:46:17 -07:00
Info versions
=============
Documentation: Fix typo in devlink documentation The driver is named "mlxsw", not "mlx5". Fixes: d4255d75856f ("devlink: document info versions for each driver") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-16 10:59:44 -07:00
The ``mlxsw`` driver reports the following versions
devlink: document info versions for each driver Add the set of info versions reported by each device driver, including a description of what the version represents, and what modes (fixed, running, stored) it reports. 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: Jiri Pirko <jiri@mellanox.com> Cc: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-09 15:46:17 -07:00
.. list-table:: devlink info versions implemented
:widths: 5 5 90
* - Name
- Type
- Description
* - ``hw.revision``
- fixed
- The hardware revision for this board
* - ``fw.psid``
- fixed
- Firmware PSID
* - ``fw.version``
- running
- Three digit firmware version
mlxsw: Add irif and erif disabled traps IRIF_DISABLED and ERIF_DISABLED are driver specific traps. Packets are dropped for these reasons when they need to be routed through/from existing router interfaces (RIF) which are disabled. Add devlink driver-specific traps and mlxsw trap IDs used to report these traps. Signed-off-by: Amit Cohen <amitc@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19 06:00:46 -07:00
mlxsw: core_linecards: Expose HW revision and INI version Implement info_get() to expose HW revision of a linecard and loaded INI version. Example: $ devlink dev info auxiliary/mlxsw_core.lc.0 auxiliary/mlxsw_core.lc.0: versions: fixed: hw.revision 0 running: ini.version 4 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-25 01:29:18 -07:00
Line card auxiliary device info versions
========================================
The ``mlxsw`` driver reports the following versions for line card auxiliary device
.. list-table:: devlink info versions implemented
:widths: 5 5 90
* - Name
- Type
- Description
* - ``hw.revision``
- fixed
- The hardware revision for this line card
* - ``ini.version``
- running
- Version of line card INI loaded
mlxsw: core_linecards: Expose device PSID over device info Use tunneled MGIR to obtain PSID of line card device and extend device_info_get() op to fill up the info with that. Example: $ devlink dev info auxiliary/mlxsw_core.lc.0 auxiliary/mlxsw_core.lc.0: versions: fixed: hw.revision 0 fw.psid MT_0000000749 running: ini.version 4 fw 19.2010.1312 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-25 01:29:22 -07:00
* - ``fw.psid``
- fixed
- Line card device PSID
mlxsw: core_linecards: Probe active line cards for devices and expose FW version In case the line card is active, go over all possible existing devices (gearboxes) on it and expose FW version of the flashable one. Example: $ devlink dev info auxiliary/mlxsw_core.lc.0 auxiliary/mlxsw_core.lc.0: versions: fixed: hw.revision 0 running: ini.version 4 fw 19.2010.1312 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-25 01:29:20 -07:00
* - ``fw.version``
- running
- Three digit firmware version of line card device
mlxsw: core_linecards: Expose HW revision and INI version Implement info_get() to expose HW revision of a linecard and loaded INI version. Example: $ devlink dev info auxiliary/mlxsw_core.lc.0 auxiliary/mlxsw_core.lc.0: versions: fixed: hw.revision 0 running: ini.version 4 Signed-off-by: Jiri Pirko <jiri@nvidia.com> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-25 01:29:18 -07:00
mlxsw: Add irif and erif disabled traps IRIF_DISABLED and ERIF_DISABLED are driver specific traps. Packets are dropped for these reasons when they need to be routed through/from existing router interfaces (RIF) which are disabled. Add devlink driver-specific traps and mlxsw trap IDs used to report these traps. Signed-off-by: Amit Cohen <amitc@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-19 06:00:46 -07:00
Driver-specific Traps
=====================
.. list-table:: List of Driver-specific Traps Registered by ``mlxsw``
:widths: 5 5 90
* - Name
- Type
- Description
* - ``irif_disabled``
- ``drop``
- Traps packets that the device decided to drop because they need to be
routed from a disabled router interface (RIF). This can happen during
RIF dismantle, when the RIF is first disabled before being removed
completely
* - ``erif_disabled``
- ``drop``
- Traps packets that the device decided to drop because they need to be
routed through a disabled router interface (RIF). This can happen during
RIF dismantle, when the RIF is first disabled before being removed
completely
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