+uint64_t nfb_timestamp_rx_dynflag;
+int nfb_timestamp_dynfield_offset = -1;
+
+static int
+timestamp_check_handler(__rte_unused const char *key,
+ const char *value, __rte_unused void *opaque)
+{
+ if (strcmp(value, "1"))
+ return -1;
+
+ return 0;
+}
+
+
+static int
+nfb_check_timestamp(struct rte_devargs *devargs)
+{
+ struct rte_kvargs *kvlist;
+ int ret;
+
+ if (devargs == NULL)
+ return 0;
+
+ kvlist = rte_kvargs_parse(devargs->args, NULL);
+ if (kvlist == NULL)
+ return 0;
+
+ if (!rte_kvargs_count(kvlist, TIMESTAMP_ARG)) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ /* Timestamps are enabled when there is
+ * key-value pair: enable_timestamp=1
+ * TODO: timestamp should be enabled with DEV_RX_OFFLOAD_TIMESTAMP
+ */
+ if (rte_kvargs_process(kvlist, TIMESTAMP_ARG,
+ timestamp_check_handler, NULL) < 0) {
+ rte_kvargs_free(kvlist);
+ return 0;
+ }
+ rte_kvargs_free(kvlist);
+
+ ret = rte_mbuf_dyn_rx_timestamp_register(
+ &nfb_timestamp_dynfield_offset,
+ &nfb_timestamp_rx_dynflag);
+ if (ret != 0) {
+ RTE_LOG(ERR, PMD, "Cannot register Rx timestamp field/flag\n");
+ return -rte_errno;
+ }
+
+ return 1;
+}
+