Check the NIC Datasheet for hardware limits.
+RSS queue region
+~~~~~~~~~~~~~~~~
+
+Set RSS queue region span on a port::
+
+ testpmd> set port (port_id) queue-region region_id (value) \
+ queue_start_index (value) queue_num (value)
+
+Set flowtype mapping on a RSS queue region on a port::
+
+ testpmd> set port (port_id) queue-region region_id (value) flowtype (value)
+
+where:
+
+* For the flowtype(pctype) of packet,the specific index for each type has
+ been defined in file i40e_type.h as enum i40e_filter_pctype.
+
+Set user priority mapping on a RSS queue region on a port::
+
+ testpmd> set port (port_id) queue-region UP (value) region_id (value)
+
+Flush all queue region related configuration on a port::
+
+ testpmd> set port (port_id) queue-region flush (on|off)
+
+where:
+
+* "on"is just an enable function which server for other configuration,
+ it is for all configuration about queue region from up layer,
+ at first will only keep in DPDK softwarestored in driver,
+ only after "flush on", it commit all configuration to HW.
+ "off" is just clean all configuration about queue region just now,
+ and restore all to DPDK i40e driver default config when start up.
+
+Show all queue region related configuration info on a port::
+
+ testpmd> show port (port_id) queue-region
+
+.. note::
+
+ Queue region only support on PF by now, so these command is
+ only for configuration of queue region on PF port.
+
csum parse-tunnel
~~~~~~~~~~~~~~~~~