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68 lines
1.7 KiB
ReStructuredText
68 lines
1.7 KiB
ReStructuredText
Linux Devlink Documentation
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===========================
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devlink is an API to expose device information and resources not directly
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related to any device class, such as chip-wide/switch-ASIC-wide configuration.
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Locking
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-------
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Driver facing APIs are currently transitioning to allow more explicit
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locking. Drivers can use the existing ``devlink_*`` set of APIs, or
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new APIs prefixed by ``devl_*``. The older APIs handle all the locking
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in devlink core, but don't allow registration of most sub-objects once
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the main devlink object is itself registered. The newer ``devl_*`` APIs assume
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the devlink instance lock is already held. Drivers can take the instance
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lock by calling ``devl_lock()``. It is also held in most of the callbacks.
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Eventually all callbacks will be invoked under the devlink instance lock,
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refer to the use of the ``DEVLINK_NL_FLAG_NO_LOCK`` flag in devlink core
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to find out which callbacks are not converted, yet.
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Drivers are encouraged to use the devlink instance lock for their own needs.
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Interface documentation
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-----------------------
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The following pages describe various interfaces available through devlink in
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general.
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.. toctree::
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:maxdepth: 1
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devlink-dpipe
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devlink-health
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devlink-info
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devlink-flash
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devlink-params
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devlink-port
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devlink-region
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devlink-resource
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devlink-reload
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devlink-trap
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Driver-specific documentation
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-----------------------------
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Each driver that implements ``devlink`` is expected to document what
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parameters, info versions, and other features it supports.
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.. toctree::
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:maxdepth: 1
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bnxt
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hns3
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ionic
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ice
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mlx4
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mlx5
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mlxsw
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mv88e6xxx
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netdevsim
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nfp
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qed
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ti-cpsw-switch
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am65-nuss-cpsw-switch
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prestera
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iosm
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octeontx2
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