+/* Ethdev Rx adapter capability bitmap flags */
+#define RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT 0x1
+/**< This flag is sent when the packet transfer mechanism is in HW.
+ * Ethdev can send packets to the event device using internal event port.
+ */
+#define RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ 0x2
+/**< Adapter supports multiple event queues per ethdev. Every ethdev
+ * Rx queue can be connected to a unique event queue.
+ */
+#define RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID 0x4
+/**< The application can override the adapter generated flow ID in the
+ * event. This flow ID can be specified when adding an ethdev Rx queue
+ * to the adapter using the ev member of struct rte_event_eth_rx_adapter
+ * @see struct rte_event_eth_rx_adapter_queue_conf::ev
+ * @see struct rte_event_eth_rx_adapter_queue_conf::rx_queue_flags
+ */
+
+/**
+ * Retrieve the event device's ethdev Rx adapter capabilities for the
+ * specified ethernet port
+ *
+ * @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 Rx event adapter capabilities.
+ *
+ * @return
+ * - 0: Success, driver provides Rx event adapter capabilities for the
+ * ethernet device.
+ * - <0: Error code returned by the driver function.
+ *
+ */
+int
+rte_event_eth_rx_adapter_caps_get(uint8_t dev_id, uint16_t eth_port_id,
+ uint32_t *caps);
+
+#define RTE_EVENT_TIMER_ADAPTER_CAP_INTERNAL_PORT (1ULL << 0)
+/**< This flag is set when the timer mechanism is in HW. */
+
+/**
+ * Retrieve the event device's timer adapter capabilities.
+ *
+ * @param dev_id
+ * The identifier of the device.
+ *
+ * @param[out] caps
+ * A pointer to memory to be filled with event timer adapter capabilities.
+ *
+ * @return
+ * - 0: Success, driver provided event timer adapter capabilities.
+ * - <0: Error code returned by the driver function.
+ */
+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);