+int __rte_experimental
+rte_event_timer_adapter_caps_get(uint8_t dev_id, uint32_t *caps);
+
+/* Crypto adapter capability bitmap flag */
+#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT_OP_NEW 0x1
+/**< Flag indicates HW is capable of generating events in
+ * RTE_EVENT_OP_NEW enqueue operation. Cryptodev will send
+ * packets to the event device as new events using an internal
+ * event port.
+ */
+
+#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT_OP_FWD 0x2
+/**< Flag indicates HW is capable of generating events in
+ * RTE_EVENT_OP_FORWARD enqueue operation. Cryptodev will send
+ * packets to the event device as forwarded event using an
+ * internal event port.
+ */
+
+#define RTE_EVENT_CRYPTO_ADAPTER_CAP_INTERNAL_PORT_QP_EV_BIND 0x4
+/**< Flag indicates HW is capable of mapping crypto queue pair to
+ * event queue.
+ */
+
+#define RTE_EVENT_CRYPTO_ADAPTER_CAP_SESSION_PRIVATE_DATA 0x8
+/**< Flag indicates HW/SW suports a mechanism to store and retrieve
+ * the private data information along with the crypto session.
+ */
+
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change without prior notice
+ *
+ * Retrieve the event device's crypto adapter capabilities for the
+ * specified cryptodev device
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @param cdev_id
+ * The identifier of the cryptodev device.
+ *
+ * @param[out] caps
+ * A pointer to memory filled with event adapter capabilities.
+ * It is expected to be pre-allocated & initialized by caller.
+ *
+ * @return
+ * - 0: Success, driver provides event adapter capabilities for the
+ * cryptodev device.
+ * - <0: Error code returned by the driver function.
+ *
+ */
+int __rte_experimental
+rte_event_crypto_adapter_caps_get(uint8_t dev_id, uint8_t cdev_id,
+ uint32_t *caps);
+
+/* Ethdev Tx adapter capability bitmap flags */
+#define RTE_EVENT_ETH_TX_ADAPTER_CAP_INTERNAL_PORT 0x1
+/**< This flag is sent when the PMD supports a packet transmit callback
+ */
+
+/**
+ * Retrieve the event device's eth Tx adapter capabilities
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @param eth_port_id
+ * The identifier of the ethernet device.
+ *
+ * @param[out] caps
+ * A pointer to memory filled with eth Tx adapter capabilities.
+ *
+ * @return
+ * - 0: Success, driver provides eth Tx adapter capabilities.
+ * - <0: Error code returned by the driver function.
+ *
+ */
+int __rte_experimental
+rte_event_eth_tx_adapter_caps_get(uint8_t dev_id, uint16_t eth_port_id,
+ uint32_t *caps);
+
+struct rte_eventdev_ops;
+struct rte_eventdev;
+
+typedef uint16_t (*event_enqueue_t)(void *port, const struct rte_event *ev);
+/**< @internal Enqueue event on port of a device */
+
+typedef uint16_t (*event_enqueue_burst_t)(void *port,
+ const struct rte_event ev[], uint16_t nb_events);
+/**< @internal Enqueue burst of events on port of a device */
+
+typedef uint16_t (*event_dequeue_t)(void *port, struct rte_event *ev,
+ uint64_t timeout_ticks);
+/**< @internal Dequeue event from port of a device */
+
+typedef uint16_t (*event_dequeue_burst_t)(void *port, struct rte_event ev[],
+ uint16_t nb_events, uint64_t timeout_ticks);
+/**< @internal Dequeue burst of events from port of a device */
+
+typedef uint16_t (*event_tx_adapter_enqueue)(void *port,
+ struct rte_event ev[], uint16_t nb_events);
+/**< @internal Enqueue burst of events on port of a device */
+
+#define RTE_EVENTDEV_NAME_MAX_LEN (64)
+/**< @internal Max length of name of event PMD */
+
+/**
+ * @internal
+ * The data part, with no function pointers, associated with each device.
+ *
+ * This structure is safe to place in shared memory to be common among
+ * different processes in a multi-process configuration.
+ */
+struct rte_eventdev_data {
+ int socket_id;
+ /**< Socket ID where memory is allocated */
+ uint8_t dev_id;
+ /**< Device ID for this instance */
+ uint8_t nb_queues;
+ /**< Number of event queues. */
+ uint8_t nb_ports;
+ /**< Number of event ports. */
+ void **ports;
+ /**< Array of pointers to ports. */
+ struct rte_event_port_conf *ports_cfg;
+ /**< Array of port configuration structures. */
+ struct rte_event_queue_conf *queues_cfg;
+ /**< Array of queue configuration structures. */
+ uint16_t *links_map;
+ /**< Memory to store queues to port connections. */
+ void *dev_private;
+ /**< PMD-specific private data */
+ uint32_t event_dev_cap;
+ /**< Event device capabilities(RTE_EVENT_DEV_CAP_)*/
+ struct rte_event_dev_config dev_conf;
+ /**< Configuration applied to device. */
+ uint8_t service_inited;
+ /* Service initialization state */
+ uint32_t service_id;
+ /* Service ID*/
+ void *dev_stop_flush_arg;
+ /**< User-provided argument for event flush function */
+
+ RTE_STD_C11
+ uint8_t dev_started : 1;
+ /**< Device state: STARTED(1)/STOPPED(0) */
+
+ char name[RTE_EVENTDEV_NAME_MAX_LEN];
+ /**< Unique identifier name */
+} __rte_cache_aligned;
+
+/** @internal The data structure associated with each event device. */
+struct rte_eventdev {
+ event_enqueue_t enqueue;
+ /**< Pointer to PMD enqueue function. */
+ event_enqueue_burst_t enqueue_burst;
+ /**< Pointer to PMD enqueue burst function. */
+ event_enqueue_burst_t enqueue_new_burst;
+ /**< Pointer to PMD enqueue burst function(op new variant) */
+ event_enqueue_burst_t enqueue_forward_burst;
+ /**< Pointer to PMD enqueue burst function(op forward variant) */
+ event_dequeue_t dequeue;
+ /**< Pointer to PMD dequeue function. */
+ event_dequeue_burst_t dequeue_burst;
+ /**< Pointer to PMD dequeue burst function. */
+ event_tx_adapter_enqueue txa_enqueue;
+ /**< Pointer to PMD eth Tx adapter enqueue function. */
+ struct rte_eventdev_data *data;
+ /**< Pointer to device data */
+ struct rte_eventdev_ops *dev_ops;
+ /**< Functions exported by PMD */
+ struct rte_device *dev;
+ /**< Device info. supplied by probing */
+
+ RTE_STD_C11
+ uint8_t attached : 1;
+ /**< Flag indicating the device is attached */
+} __rte_cache_aligned;
+
+extern struct rte_eventdev *rte_eventdevs;
+/** @internal The pool of rte_eventdev structures. */
+
+static __rte_always_inline uint16_t
+__rte_event_enqueue_burst(uint8_t dev_id, uint8_t port_id,
+ const struct rte_event ev[], uint16_t nb_events,
+ const event_enqueue_burst_t fn)
+{
+ const struct rte_eventdev *dev = &rte_eventdevs[dev_id];
+
+#ifdef RTE_LIBRTE_EVENTDEV_DEBUG
+ if (dev_id >= RTE_EVENT_MAX_DEVS || !rte_eventdevs[dev_id].attached) {
+ rte_errno = -EINVAL;
+ return 0;
+ }
+
+ if (port_id >= dev->data->nb_ports) {
+ rte_errno = -EINVAL;
+ return 0;
+ }
+#endif
+ /*
+ * Allow zero cost non burst mode routine invocation if application
+ * requests nb_events as const one
+ */
+ if (nb_events == 1)
+ return (*dev->enqueue)(dev->data->ports[port_id], ev);
+ else
+ return fn(dev->data->ports[port_id], ev, nb_events);
+}