+
+* Use dev arg option ``drv_loopback=1`` to loopback packets at
+ driver level. Any packet received will be reflected back by the
+ driver on same port. e.g. ``fslmc:dpni.1,drv_loopback=1``
+
+* Use dev arg option ``drv_no_prefetch=1`` to disable prefetching
+ of the packet pull command which is issued in the previous cycle.
+ e.g. ``fslmc:dpni.1,drv_no_prefetch=1``
+