+
+ return eth_dev;
+}
+
+/*
+ * Attach to a port already registered by the primary process, which
+ * makes sure that the same device would have the same port id both
+ * in the primary and secondary process.
+ */
+static struct rte_eth_dev *
+eth_dev_attach_secondary(const char *name)
+{
+ uint8_t i;
+ struct rte_eth_dev *eth_dev;
+
+ if (rte_eth_dev_data == NULL)
+ rte_eth_dev_data_alloc();
+
+ for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
+ if (strcmp(rte_eth_dev_data[i].name, name) == 0)
+ break;
+ }
+ if (i == RTE_MAX_ETHPORTS) {
+ RTE_PMD_DEBUG_TRACE(
+ "device %s is not driven by the primary process\n",
+ name);
+ return NULL;
+ }
+
+ eth_dev = eth_dev_get(i);
+ RTE_ASSERT(eth_dev->data->port_id == i);
+