/** * struct net_shaper - represents a shaping node on the NIC H/W * zeroed field are considered not set. * @parent: Unique identifier for the shaper parent, usually implied * @handle: Unique identifier for this shaper * @metric: Specify if the rate limits refers to PPS or BPS * @bw_min: Minimum guaranteed rate for this shaper * @bw_max: Maximum peak rate allowed for this shaper * @burst: Maximum burst for the peek rate of this shaper * @priority: Scheduling priority for this shaper * @weight: Scheduling weight for this shaper
*/ struct net_shaper { struct net_shaper_handle parent; struct net_shaper_handle handle; enum net_shaper_metric metric;
u64 bw_min;
u64 bw_max;
u64 burst;
u32 priority;
u32 weight;
/* private: */
u32 leaves; /* accounted only for NODE scope */ struct rcu_head rcu;
};
/** * struct net_shaper_ops - Operations on device H/W shapers * * The operations applies to either net_device and devlink objects. * The initial shaping configuration at device initialization is empty: * does not constraint the rate in any way. * The network core keeps track of the applied user-configuration in * the net_device or devlink structure. * The operations are serialized via a per device lock. * * Device not supporting any kind of nesting should not provide the * group operation. * * Each shaper is uniquely identified within the device with a 'handle' * comprising the shaper scope and a scope-specific id.
*/ struct net_shaper_ops { /** * @group: create the specified shapers scheduling group * * Nest the @leaves shapers identified under the * @node shaper. * All the shapers belong to the device specified by @binding. * The @leaves arrays size is specified by @leaves_count. * Create either the @leaves and the @node shaper; or if they already * exists, links them together in the desired way. * @leaves scope must be NET_SHAPER_SCOPE_QUEUE.
*/ int (*group)(struct net_shaper_binding *binding, int leaves_count, conststruct net_shaper *leaves, conststruct net_shaper *node, struct netlink_ext_ack *extack);
/** * @set: Updates the specified shaper * * Updates or creates the @shaper on the device specified by @binding.
*/ int (*set)(struct net_shaper_binding *binding, conststruct net_shaper *shaper, struct netlink_ext_ack *extack);
/** * @delete: Removes the specified shaper * * Removes the shaper configuration as identified by the given @handle * on the device specified by @binding, restoring the default behavior.
*/ int (*delete)(struct net_shaper_binding *binding, conststruct net_shaper_handle *handle, struct netlink_ext_ack *extack);
/** * @capabilities: get the shaper features supported by the device * * Fills the bitmask @cap with the supported capabilities for the * specified @scope and device specified by @binding.
*/ void (*capabilities)(struct net_shaper_binding *binding, enum net_shaper_scope scope, unsignedlong *cap);
};
#endif
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