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rte_event(3) DPDK rte_event(3) NAME rte_event SYNOPSIS #include <rte_eventdev.h> Detailed Description The generic rte_event structure to hold the event attributes for dequeue and enqueue operation Definition at line 1676 of file rte_eventdev.h. Field Documentation uint32_t flow_id Target flow identifier for the enqueue and dequeue operation. For RTE_SCHED_TYPE_ATOMIC, this field is used to identify a flow for atom- icity within a queue & priority level, such that events from each individ- ual flow will only be scheduled to one port at a time. This field is preserved between enqueue and dequeue when a device reports the RTE_EVENT_DEV_CAP_CARRY_FLOW_ID capability. Otherwise the value is im- plementation dependent on dequeue. Definition at line 1682 of file rte_eventdev.h. uint32_t sub_event_type Sub-event types based on the event source. This field is preserved between enqueue and dequeue. See also RTE_EVENT_TYPE_CPU Definition at line 1694 of file rte_eventdev.h. uint32_t event_type Event type to classify the event source. (RTE_EVENT_TYPE_*) This field is preserved between enqueue and dequeue Definition at line 1701 of file rte_eventdev.h. uint8_t op The type of event enqueue operation - new/forward/ etc. This field is not preserved across an instance and is implementation depen- dent on dequeue. See also RTE_EVENT_OP_NEW RTE_EVENT_OP_FORWARD RTE_EVENT_OP_RELEASE Definition at line 1706 of file rte_eventdev.h. uint8_t rsvd Reserved for future use. Should be set to zero when initializing event structures. When forwarding or releasing existing events dequeued from the scheduler, this field can be ignored. Definition at line 1716 of file rte_eventdev.h. uint8_t sched_type Scheduler synchronization type (RTE_SCHED_TYPE_*) associated with flow id on a given event queue for the enqueue and dequeue operation. This field is used to determine the scheduling type for events sent to queues where RTE_EVENT_QUEUE_CFG_ALL_TYPES is configured. For queues where only a single scheduling type is available, this field must be set to match the configured scheduling type. This field is preserved between enqueue and dequeue. See also RTE_SCHED_TYPE_ORDERED RTE_SCHED_TYPE_ATOMIC RTE_SCHED_TYPE_PARALLEL Definition at line 1724 of file rte_eventdev.h. uint8_t queue_id Targeted event queue identifier for the enqueue or dequeue operation. The value must be less than rte_event_dev_config::nb_event_queues which was previously supplied to rte_event_dev_configure(). This field is preserved between enqueue on dequeue. Definition at line 1741 of file rte_eventdev.h. uint8_t priority Event priority relative to other events in the event queue. The requested priority should in the range of [RTE_EVENT_DEV_PRIORITY_HIGHEST, RTE_EVENT_DEV_PRIORITY_LOWEST]. The implementation shall normalize the requested priority to supported pri- ority value. [For devices with where the supported priority range is a power-of-2, the normalization will be done via bit-shifting, so only the highest log2(num_priorities) bits will be used by the event device] Valid when the device has RTE_EVENT_DEV_CAP_EVENT_QOS capability and this field is preserved between enqueue and dequeue, though with possible loss of precision due to normalization and subsequent de-normalization. (For ex- ample, if a device only supports 8 priority levels, only the high 3 bits of this field will be used by that device, and hence only the value of those 3 bits are guaranteed to be preserved between enqueue and dequeue.) Ignored when device does not support RTE_EVENT_DEV_CAP_EVENT_QOS capabil- ity, and it is implementation dependent if this field is preserved between enqueue and dequeue. Definition at line 1749 of file rte_eventdev.h. uint8_t impl_opaque Opaque field for event device use. An event driver implementation may use this field to hold an implementation specific value to share between dequeue and enqueue operation. The application must not modify this field. Its value is implementation de- pendent on dequeue, and must be returned unmodified on enqueue when op type is RTE_EVENT_OP_FORWARD or RTE_EVENT_OP_RELEASE. This field is ignored on events with op type RTE_EVENT_OP_NEW. Definition at line 1773 of file rte_eventdev.h. uint64_t u64 Opaque 64-bit value Definition at line 1791 of file rte_eventdev.h. void* event_ptr Opaque event pointer Definition at line 1793 of file rte_eventdev.h. struct rte_mbuf* mbuf mbuf pointer if dequeued event is associated with mbuf Definition at line 1795 of file rte_eventdev.h. struct rte_event_vector* vec Event vector pointer. Definition at line 1797 of file rte_eventdev.h. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Jul 30 2026 rte_event(3)
NAME | SYNOPSIS | Detailed Description | Field Documentation | Author
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