NAME

       rte_event_dev_info

SYNOPSIS

       #include <rte_eventdev.h>

   Data Fields
       const char * driver_name
       struct rte_device * dev
       uint32_t min_dequeue_timeout_ns
       uint32_t max_dequeue_timeout_ns
       uint32_t dequeue_timeout_ns
       uint8_t max_event_queues
       uint32_t max_event_queue_flows
       uint8_t max_event_queue_priority_levels
       uint8_t max_event_priority_levels
       uint8_t max_event_ports
       uint8_t max_event_port_dequeue_depth
       uint32_t max_event_port_enqueue_depth
       uint8_t max_event_port_links
       int32_t max_num_events
       uint32_t event_dev_cap
       uint8_t max_single_link_event_port_queue_pairs
       uint8_t max_profiles_per_port

Detailed Description

       Event device information

       Definition at line 599 of file rte_eventdev.h.

Field Documentation

   const char* driver_name
       Event driver name.

       Definition at line 600 of file rte_eventdev.h.

   struct rte_device* dev
       Device information.

       Definition at line 601 of file rte_eventdev.h.

   uint32_t min_dequeue_timeout_ns
       Minimum global dequeue timeout(ns) supported by this device.

       Definition at line 602 of file rte_eventdev.h.

   uint32_t max_dequeue_timeout_ns
       Maximum global dequeue timeout(ns) supported by this device.

       Definition at line 604 of file rte_eventdev.h.

   uint32_t dequeue_timeout_ns
       Configured global dequeue timeout(ns) for this device.

       Definition at line 606 of file rte_eventdev.h.

   uint8_t max_event_queues
       Maximum event queues supported by this device.

       This count excludes any queues covered by max_single_link_event_port_queue_pairs.

       Definition at line 608 of file rte_eventdev.h.

   uint32_t max_event_queue_flows
       Maximum number of flows within an event queue supported by this device.

       Definition at line 613 of file rte_eventdev.h.

   uint8_t max_event_queue_priority_levels
       Maximum number of event queue priority levels supported by this device.

       Valid when the device has RTE_EVENT_DEV_CAP_QUEUE_QOS capability.

       The implementation shall normalize priority values specified between RTE_EVENT_DEV_PRIORITY_HIGHEST and
       RTE_EVENT_DEV_PRIORITY_LOWEST to map them internally to this range of priorities. [For devices supporting
       a power-of-2 number of priority levels, this normalization will be done via a right-shift operation, so
       only the top log2(max_levels) bits will be used by the event device.]

       See also
           rte_event_queue_conf.priority

       Definition at line 615 of file rte_eventdev.h.

   uint8_t max_event_priority_levels
       Maximum number of event priority levels by this device.

       Valid when the device has RTE_EVENT_DEV_CAP_EVENT_QOS capability.

       The implementation shall normalize priority values specified between RTE_EVENT_DEV_PRIORITY_HIGHEST and
       RTE_EVENT_DEV_PRIORITY_LOWEST to map them internally to this range of priorities. [For devices supporting
       a power-of-2 number of priority levels, this normalization will be done via a right-shift operation, so
       only the top log2(max_levels) bits will be used by the event device.]

       See also
           rte_event.priority

       Definition at line 629 of file rte_eventdev.h.

   uint8_t max_event_ports
       Maximum number of event ports supported by this device.

       This count excludes any ports covered by max_single_link_event_port_queue_pairs.

       Definition at line 643 of file rte_eventdev.h.

   uint8_t max_event_port_dequeue_depth
       Maximum number of events that can be dequeued at a time from an event port on this device.

       A device that does not support burst dequeue (RTE_EVENT_DEV_CAP_BURST_MODE) will set this to 1.

       Definition at line 648 of file rte_eventdev.h.

   uint32_t max_event_port_enqueue_depth
       Maximum number of events that can be enqueued at a time to an event port on this device.

       A device that does not support burst enqueue (RTE_EVENT_DEV_CAP_BURST_MODE) will set this to 1.

       Definition at line 655 of file rte_eventdev.h.

   uint8_t max_event_port_links
       Maximum number of queues that can be linked to a single event port on this device.

       Definition at line 662 of file rte_eventdev.h.

   int32_t max_num_events
       A closed system event dev has a limit on the number of events it can manage at a time. Once the number of
       events tracked by an eventdev exceeds this number, any enqueues of NEW events will fail. An open system
       event dev does not have a limit and will specify this as -1.

       Definition at line 665 of file rte_eventdev.h.

   uint32_t event_dev_cap
       Event device capabilities flags (RTE_EVENT_DEV_CAP_*).

       Definition at line 672 of file rte_eventdev.h.

   uint8_t max_single_link_event_port_queue_pairs
       Maximum number of event ports and queues, supported by this device, that are optimized for (and only
       capable of) single-link configurations. These ports and queues are not accounted for in max_event_ports
       or max_event_queues.

       Definition at line 674 of file rte_eventdev.h.

   uint8_t max_profiles_per_port
       Maximum number of event queue link profiles per event port. A device that doesn't support multiple
       profiles will set this as 1.

       Definition at line 680 of file rte_eventdev.h.

Author

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DPDK                                             Version 24.11.2                           rte_event_dev_info(3)