rte_event_dev_config(3) DPDK rte_event_dev_config(3) NAME rte_event_dev_config SYNOPSIS #include <rte_eventdev.h> Data Fields uint32_t dequeue_timeout_ns int32_t nb_events_limit uint8_t nb_event_queues uint8_t nb_event_ports uint32_t nb_event_queue_flows uint32_t nb_event_port_dequeue_depth uint32_t nb_event_port_enqueue_depth uint32_t event_dev_cfg uint8_t nb_single_link_event_port_queues enum rte_event_dev_preschedule_type preschedule_type Detailed Description Event device configuration structure Definition at line 768 of file rte_eventdev.h. Field Documentation uint32_t dequeue_timeout_ns rte_event_dequeue_burst() timeout on this device. This value should be in the range of rte_event_dev_info::min_dequeue_timeout_ns and rte_event_dev_info::max_dequeue_timeout_ns returned by rte_event_dev_info_get() The value 0 is allowed, in which case, default de- queue timeout used. See also RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT Definition at line 769 of file rte_eventdev.h. int32_t nb_events_limit In a closed system this field is the limit on maximum number of events that can be inflight in the eventdev at a given time. The limit is required to ensure that the finite space in a closed system is not exhausted. The value cannot exceed rte_event_dev_info::max_num_events returned by rte_event_dev_info_get(). This value should be set to -1 for open systems, that is, those systems re- turning -1 in rte_event_dev_info::max_num_events. See also rte_event_port_conf.new_event_threshold Definition at line 777 of file rte_eventdev.h. uint8_t nb_event_queues Number of event queues to configure on this device. This value includes any single-link queue-port pairs to be used. This value cannot exceed rte_event_dev_info::max_event_queues + rte_event_dev_info::max_sin- gle_link_event_port_queue_pairs returned by rte_event_dev_info_get(). The number of non-single-link queues i.e. this value less nb_sin- gle_link_event_port_queues in this struct, cannot exceed rte_event_dev_info::max_event_queues Definition at line 790 of file rte_eventdev.h. uint8_t nb_event_ports Number of event ports to configure on this device. This value includes any single-link queue-port pairs to be used. This value cannot exceed rte_event_dev_info::max_event_ports + rte_event_dev_info::max_sin- gle_link_event_port_queue_pairs returned by rte_event_dev_info_get(). The number of non-single-link ports i.e. this value less nb_sin- gle_link_event_port_queues in this struct, cannot exceed rte_event_dev_info::max_event_ports Definition at line 800 of file rte_eventdev.h. uint32_t nb_event_queue_flows Max number of flows needed for a single event queue on this device. This value cannot exceed rte_event_dev_info::max_event_queue_flows returned by rte_event_dev_info_get() Definition at line 810 of file rte_eventdev.h. uint32_t nb_event_port_dequeue_depth Max number of events that can be dequeued at a time from an event port on this device. This value cannot exceed rte_event_dev_info::max_event_port_dequeue_depth returned by rte_event_dev_info_get(). Ignored when device is not RTE_EVENT_DEV_CAP_BURST_MODE capable. See also rte_event_port_setup() rte_event_dequeue_burst() Definition at line 815 of file rte_eventdev.h. uint32_t nb_event_port_enqueue_depth Maximum number of events can be enqueued at a time to an event port on this device. This value cannot exceed rte_event_dev_info::max_event_port_en- queue_depth returned by rte_event_dev_info_get(). Ignored when device is not RTE_EVENT_DEV_CAP_BURST_MODE capable. See also rte_event_port_setup() rte_event_enqueue_burst() Definition at line 822 of file rte_eventdev.h. uint32_t event_dev_cfg Event device config flags(RTE_EVENT_DEV_CFG_) Definition at line 829 of file rte_eventdev.h. uint8_t nb_single_link_event_port_queues Number of event ports and queues that will be singly-linked to each other. These are a subset of the overall event ports and queues; this value cannot exceed nb_event_ports or nb_event_queues. If the device has ports and queues that are optimized for single-link usage, this field is a hint for how many to allocate; otherwise, regular event ports and queues will be used. Definition at line 831 of file rte_eventdev.h. enum rte_event_dev_preschedule_type preschedule_type Event pre-schedule type to use across the event device, if supported. See also RTE_EVENT_DEV_CAP_EVENT_PRESCHEDULE RTE_EVENT_DEV_CAP_EVENT_PRESCHEDULE_ADAPTIVE Definition at line 839 of file rte_eventdev.h. Author Generated automatically by Doxygen for DPDK from the source code. Version 25.11.0 Thu Aug 27 2026 rte_event_dev_config(3)
NAME | SYNOPSIS | Detailed Description | Field Documentation | Author
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