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 dequeue 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 returning -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_single_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_single_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_single_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_single_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_enqueue_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

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DPDK                                             Version 24.11.3                         rte_event_dev_config(3)