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 min_dequeue_timeout_ns and 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 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 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 max_event_queues + 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 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 max_event_ports + 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 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 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 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 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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