+/**
+ * Setup a queue pair for a device.
+ *
+ * @param dev
+ * Compress device
+ * @param qp_id
+ * Queue pair identifier
+ * @param max_inflight_ops
+ * Max inflight ops which qp must accommodate
+ * @param socket_id
+ * Socket identifier
+ * @return
+ * Returns 0 on success.
+ */
+typedef int (*compressdev_queue_pair_setup_t)(struct rte_compressdev *dev,
+ uint16_t qp_id, uint32_t max_inflight_ops, int socket_id);
+
+/**
+ * Release memory resources allocated by given queue pair.
+ *
+ * @param dev
+ * Compress device
+ * @param qp_id
+ * Queue pair identifier
+ * @return
+ * - 0 on success.
+ * - EAGAIN if can't close as device is busy
+ */
+typedef int (*compressdev_queue_pair_release_t)(struct rte_compressdev *dev,
+ uint16_t qp_id);
+
+/**
+ * Create driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data
+ * @param stream
+ * ptr where handle of pmd's private stream data should be stored
+ * @return
+ * - Returns 0 if private stream structure has been created successfully.
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private stream could not be allocated.
+ */
+typedef int (*compressdev_stream_create_t)(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform, void **stream);
+
+/**
+ * Free driver private stream data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param stream
+ * handle of pmd's private stream data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support STATEFUL operations.
+ * - Returns -EBUSY if can't free stream as there are inflight operations
+ */
+typedef int (*compressdev_stream_free_t)(struct rte_compressdev *dev,
+ void *stream);
+
+/**
+ * Create driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param xform
+ * xform data
+ * @param private_xform
+ * ptr where handle of pmd's private_xform data should be stored
+ * @return
+ * - if successful returns 0
+ * and valid private_xform handle
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -ENOTSUP if comp device does not support the comp transform.
+ * - Returns -ENOMEM if the private_xform could not be allocated.
+ */
+typedef int (*compressdev_private_xform_create_t)(struct rte_compressdev *dev,
+ const struct rte_comp_xform *xform, void **private_xform);
+
+/**
+ * Free driver private_xform data.
+ *
+ * @param dev
+ * Compressdev device
+ * @param private_xform
+ * handle of pmd's private_xform data
+ * @return
+ * - 0 if successful
+ * - <0 in error cases
+ * - Returns -EINVAL if input parameters are invalid.
+ * - Returns -EBUSY if can't free private_xform due to inflight operations
+ */
+typedef int (*compressdev_private_xform_free_t)(struct rte_compressdev *dev,
+ void *private_xform);
+