+ case PIPELINE_PORT_OUT_FD_WRITER:
+ return &rte_port_fd_writer_ops;
+#ifdef RTE_LIBRTE_KNI
+ case PIPELINE_PORT_OUT_KNI_WRITER:
+ return &rte_port_kni_writer_ops;
+ case PIPELINE_PORT_OUT_KNI_WRITER_NODROP:
+ return &rte_port_kni_writer_nodrop_ops;
+#endif