Disabled by default (set to 0).
+ The Direct Verbs/Rules (engaged with ``dv_flow_en`` = 1) supports all
+ of the extensive metadata features. The legacy Verbs supports FLAG and
+ MARK metadata actions over NIC Rx steering domain only.
+
- ``dv_flow_en`` parameter [int]
A nonzero value enables the DV flow steering assuming it is supported