+void
+detach_device(char *identifier)
+{
+ struct rte_dev_iterator iterator;
+ struct rte_devargs da;
+ portid_t port_id;
+
+ printf("Removing a device...\n");
+
+ memset(&da, 0, sizeof(da));
+ if (rte_devargs_parsef(&da, "%s", identifier)) {
+ printf("cannot parse identifier\n");
+ if (da.args)
+ free(da.args);
+ return;
+ }
+
+ RTE_ETH_FOREACH_MATCHING_DEV(port_id, identifier, &iterator) {
+ if (ports[port_id].port_status != RTE_PORT_CLOSED) {
+ if (ports[port_id].port_status != RTE_PORT_STOPPED) {
+ printf("Port %u not stopped\n", port_id);
+ return;
+ }
+
+ /* sibling ports are forced to be closed */
+ if (ports[port_id].flow_list)
+ port_flow_flush(port_id);
+ ports[port_id].port_status = RTE_PORT_CLOSED;
+ printf("Port %u is now closed\n", port_id);
+ }
+ }
+
+ if (rte_eal_hotplug_remove(da.bus->name, da.name) != 0) {
+ TESTPMD_LOG(ERR, "Failed to detach device %s(%s)\n",
+ da.name, da.bus->name);
+ return;
+ }
+
+ remove_invalid_ports();
+
+ printf("Device %s is detached\n", identifier);
+ printf("Now total ports is %d\n", nb_ports);
+ printf("Done\n");
+}
+