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. Locking ------- Driver facing APIs are currently transitioning to allow more explicit locking. Drivers can use the existing ``devlink_*`` set of APIs, or new APIs prefixed by ``devl_*``. The older APIs handle all the locking in devlink core, but don't allow registration of most sub-objects once the main devlink object is itself registered. The newer ``devl_*`` APIs assume the devlink instance lock is already held. Drivers can take the instance lock by calling ``devl_lock()``. It is also held all callbacks of devlink netlink commands. Drivers are encouraged to use the devlink instance lock for their own needs. Interface documentation ----------------------- The following pages describe various interfaces available through devlink in general. .. toctree:: :maxdepth: 1 devlink-dpipe devlink-health devlink-info devlink-flash devlink-params devlink-port devlink-region devlink-resource devlink-reload devlink-selftests devlink-trap devlink-linecard 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 etas_es58x hns3 ionic ice mlx4 mlx5 mlxsw mv88e6xxx netdevsim nfp qed ti-cpsw-switch am65-nuss-cpsw-switch prestera iosm octeontx2 sfc