+uword
+unformat_ip_flow_hash_config (unformat_input_t *input, va_list *args)
+{
+ flow_hash_config_t *flow_hash_config = va_arg (*args, flow_hash_config_t *);
+ uword start_index = unformat_check_input (input);
+ int matched_once = 0;
+
+ if (unformat (input, "default"))
+ {
+ *flow_hash_config = IP_FLOW_HASH_DEFAULT;
+ return 1;
+ }
+ while (!unformat_is_eof (input) &&
+ !is_white_space (unformat_peek_input (input)))
+ {
+ if (unformat (input, "%_,"))
+ ;
+#define _(a, b) \
+ else if (unformat (input, "%_" #a)) \
+ { \
+ *flow_hash_config |= b; \
+ matched_once = 1; \
+ }
+ foreach_flow_hash_bit_v1
+#undef _
+ else
+ {
+ /* Roll back to our start */
+ input->index = start_index;
+ return 0;
+ }
+ }
+
+ return matched_once;
+}
+