+/* Masks the fields in 'wc' that are used by the flow hash 'fields'. */
+void
+flow_mask_hash_fields(struct flow_wildcards *wc, enum nx_hash_fields fields)
+{
+ switch (fields) {
+ case NX_HASH_FIELDS_ETH_SRC:
+ memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
+ break;
+
+ case NX_HASH_FIELDS_SYMMETRIC_L4:
+ memset(&wc->masks.dl_src, 0xff, sizeof wc->masks.dl_src);
+ memset(&wc->masks.dl_dst, 0xff, sizeof wc->masks.dl_dst);
+ memset(&wc->masks.dl_type, 0xff, sizeof wc->masks.dl_type);
+ memset(&wc->masks.vlan_tci, 0xff, sizeof wc->masks.vlan_tci);
+ memset(&wc->masks.nw_proto, 0xff, sizeof wc->masks.nw_proto);
+ memset(&wc->masks.nw_src, 0xff, sizeof wc->masks.nw_src);
+ memset(&wc->masks.nw_dst, 0xff, sizeof wc->masks.nw_dst);
+ memset(&wc->masks.tp_src, 0xff, sizeof wc->masks.tp_src);
+ memset(&wc->masks.tp_dst, 0xff, sizeof wc->masks.tp_dst);
+ break;
+
+ default:
+ NOT_REACHED();
+ }
+}
+