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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

Detailed Description

Event device configuration structure

Definition at line 515 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 which previously provided in 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 516 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 overwhelmed. The value cannot exceed the max_num_events as provided by rte_event_dev_info_get(). This value should be set to -1 for open system.

Definition at line 524 of file rte_eventdev.h.

uint8_t nb_event_queues

Number of event queues to configure on this device. This value cannot exceed the max_event_queues which previously provided in rte_event_dev_info_get()

Definition at line 532 of file rte_eventdev.h.

uint8_t nb_event_ports

Number of event ports to configure on this device. This value cannot exceed the max_event_ports which previously provided in rte_event_dev_info_get()

Definition at line 537 of file rte_eventdev.h.

uint32_t nb_event_queue_flows

Number of flows for any event queue on this device. This value cannot exceed the max_event_queue_flows which previously provided in rte_event_dev_info_get()

Definition at line 542 of file rte_eventdev.h.

uint32_t nb_event_port_dequeue_depth

Maximum number of events can be dequeued at a time from an event port by this device. This value cannot exceed the max_event_port_dequeue_depth which previously provided in rte_event_dev_info_get(). Ignored when device is not RTE_EVENT_DEV_CAP_BURST_MODE capable.

See also:

rte_event_port_setup()

Definition at line 547 of file rte_eventdev.h.

uint32_t nb_event_port_enqueue_depth

Maximum number of events can be enqueued at a time from an event port by this device. This value cannot exceed the max_event_port_enqueue_depth which previously provided in rte_event_dev_info_get(). Ignored when device is not RTE_EVENT_DEV_CAP_BURST_MODE capable.

See also:

rte_event_port_setup()

Definition at line 555 of file rte_eventdev.h.

uint32_t event_dev_cfg

Event device config flags(RTE_EVENT_DEV_CFG_)

Definition at line 563 of file rte_eventdev.h.

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 can be used.

Definition at line 565 of file rte_eventdev.h.

Author

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Thu May 23 2024 Version 23.11.0