58 static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int mask)  in zfcp_erp_adapter_block()  argument
60 	zfcp_erp_clear_adapter_status(adapter,  in zfcp_erp_adapter_block()
68 	list_for_each_entry(curr_act, &act->adapter->erp_running_head, list)  in zfcp_erp_action_exists()
76 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_action_ready()  local
78 	list_move(&act->list, &act->adapter->erp_ready_head);  in zfcp_erp_action_ready()
80 	wake_up(&adapter->erp_ready_wq);  in zfcp_erp_action_ready()
106 		shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_action_dismiss_port()
111 static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)  in zfcp_erp_action_dismiss_adapter()  argument
115 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_INUSE)  in zfcp_erp_action_dismiss_adapter()
116 		zfcp_erp_action_dismiss(&adapter->erp_action);  in zfcp_erp_action_dismiss_adapter()
118 		read_lock(&adapter->port_list_lock);  in zfcp_erp_action_dismiss_adapter()
119 		list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_action_dismiss_adapter()
121 		read_unlock(&adapter->port_list_lock);  in zfcp_erp_action_dismiss_adapter()
125 static int zfcp_erp_required_act(int want, struct zfcp_adapter *adapter,  in zfcp_erp_required_act()  argument
155 		a_status = atomic_read(&adapter->status);  in zfcp_erp_required_act()
165 		a_status = atomic_read(&adapter->status);  in zfcp_erp_required_act()
170 			return 0; /* shutdown requested for closed adapter */  in zfcp_erp_required_act()
177 						  struct zfcp_adapter *adapter,  in zfcp_erp_setup_act()  argument
215 		kref_get(&adapter->ref);  in zfcp_erp_setup_act()
216 		zfcp_erp_action_dismiss_adapter(adapter);  in zfcp_erp_setup_act()
217 		atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);  in zfcp_erp_setup_act()
218 		erp_action = &adapter->erp_action;  in zfcp_erp_setup_act()
220 		if (!(atomic_read(&adapter->status) &  in zfcp_erp_setup_act()
229 	erp_action->adapter = adapter;  in zfcp_erp_setup_act()
236 static int zfcp_erp_action_enqueue(int want, struct zfcp_adapter *adapter,  in zfcp_erp_action_enqueue()  argument
244 	if (!adapter->erp_thread)  in zfcp_erp_action_enqueue()
247 	need = zfcp_erp_required_act(want, adapter, port, sdev);  in zfcp_erp_action_enqueue()
251 	act = zfcp_erp_setup_act(need, act_status, adapter, port, sdev);  in zfcp_erp_action_enqueue()
254 	atomic_set_mask(ZFCP_STATUS_ADAPTER_ERP_PENDING, &adapter->status);  in zfcp_erp_action_enqueue()
255 	++adapter->erp_total_count;  in zfcp_erp_action_enqueue()
256 	list_add_tail(&act->list, &adapter->erp_ready_head);  in zfcp_erp_action_enqueue()
257 	wake_up(&adapter->erp_ready_wq);  in zfcp_erp_action_enqueue()
260 	zfcp_dbf_rec_trig(id, adapter, port, sdev, want, need);  in zfcp_erp_action_enqueue()
264 static int _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,  in _zfcp_erp_adapter_reopen()  argument
267 	zfcp_erp_adapter_block(adapter, clear_mask);  in _zfcp_erp_adapter_reopen()
268 	zfcp_scsi_schedule_rports_block(adapter);  in _zfcp_erp_adapter_reopen()
271 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {  in _zfcp_erp_adapter_reopen()
272 		zfcp_erp_set_adapter_status(adapter,  in _zfcp_erp_adapter_reopen()
277 				       adapter, NULL, NULL, id, 0);  in _zfcp_erp_adapter_reopen()
281  * zfcp_erp_adapter_reopen - Reopen adapter.
282  * @adapter: Adapter to reopen.
286 void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear, char *id)  in zfcp_erp_adapter_reopen()  argument
290 	zfcp_erp_adapter_block(adapter, clear);  in zfcp_erp_adapter_reopen()
291 	zfcp_scsi_schedule_rports_block(adapter);  in zfcp_erp_adapter_reopen()
293 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_adapter_reopen()
294 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)  in zfcp_erp_adapter_reopen()
295 		zfcp_erp_set_adapter_status(adapter,  in zfcp_erp_adapter_reopen()
298 		zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter,  in zfcp_erp_adapter_reopen()
300 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_adapter_reopen()
304  * zfcp_erp_adapter_shutdown - Shutdown adapter.
305  * @adapter: Adapter to shut down.
309 void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,  in zfcp_erp_adapter_shutdown()  argument
313 	zfcp_erp_adapter_reopen(adapter, clear | flags, id);  in zfcp_erp_adapter_shutdown()
344 				port->adapter, port, NULL, id, 0);  in _zfcp_erp_port_forced_reopen()
356 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_forced_reopen()  local
358 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen()
360 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen()
375 				       port->adapter, port, NULL, id, 0);  in _zfcp_erp_port_reopen()
390 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_reopen()  local
392 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_reopen()
394 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_reopen()
409 	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;  in _zfcp_erp_lun_reopen()  local
416 	zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_LUN, adapter,  in _zfcp_erp_lun_reopen()
433 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_reopen()  local
435 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_lun_reopen()
437 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_lun_reopen()
467 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_shutdown_wait()  local
470 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_lun_shutdown_wait()
472 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_lun_shutdown_wait()
474 	zfcp_erp_wait(adapter);  in zfcp_erp_lun_shutdown_wait()
482 static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)  in zfcp_erp_adapter_unblock()  argument
484 	if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status))  in zfcp_erp_adapter_unblock()
485 		zfcp_dbf_rec_run("eraubl1", &adapter->erp_action);  in zfcp_erp_adapter_unblock()
486 	atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);  in zfcp_erp_adapter_unblock()
507 	list_move(&erp_action->list, &erp_action->adapter->erp_running_head);  in zfcp_erp_action_to_running()
513 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_strategy_check_fsfreq()  local
519 	spin_lock(&adapter->req_list->lock);  in zfcp_erp_strategy_check_fsfreq()
520 	req = _zfcp_reqlist_find(adapter->req_list, act->fsf_req_id);  in zfcp_erp_strategy_check_fsfreq()
534 	spin_unlock(&adapter->req_list->lock);  in zfcp_erp_strategy_check_fsfreq()
544 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_notify()  local
547 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_notify()
552 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_notify()
579 static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,  in _zfcp_erp_port_reopen_all()  argument
584 	read_lock(&adapter->port_list_lock);  in _zfcp_erp_port_reopen_all()
585 	list_for_each_entry(port, &adapter->port_list, list)  in _zfcp_erp_port_reopen_all()
587 	read_unlock(&adapter->port_list_lock);  in _zfcp_erp_port_reopen_all()
595 	shost_for_each_device(sdev, port->adapter->scsi_host)  in _zfcp_erp_lun_reopen_all()
604 		_zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1");  in zfcp_erp_strategy_followup_failed()
622 		_zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1");  in zfcp_erp_strategy_followup_success()
633 static void zfcp_erp_wakeup(struct zfcp_adapter *adapter)  in zfcp_erp_wakeup()  argument
637 	read_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_wakeup()
638 	if (list_empty(&adapter->erp_ready_head) &&  in zfcp_erp_wakeup()
639 	    list_empty(&adapter->erp_running_head)) {  in zfcp_erp_wakeup()
641 					  &adapter->status);  in zfcp_erp_wakeup()
642 			wake_up(&adapter->erp_done_wqh);  in zfcp_erp_wakeup()
644 	read_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_wakeup()
647 static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)  in zfcp_erp_enqueue_ptp_port()  argument
650 	port = zfcp_port_enqueue(adapter, adapter->peer_wwpn, 0,  in zfcp_erp_enqueue_ptp_port()
651 				 adapter->peer_d_id);  in zfcp_erp_enqueue_ptp_port()
661 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_adapter_strat_fsf_xconf()  local
663 	atomic_clear_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK, &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
667 				  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
668 		write_lock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strat_fsf_xconf()
670 		write_unlock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strat_fsf_xconf()
673 					  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
677 		wait_event(adapter->erp_ready_wq,  in zfcp_erp_adapter_strat_fsf_xconf()
678 			   !list_empty(&adapter->erp_ready_head));  in zfcp_erp_adapter_strat_fsf_xconf()
682 		if (!(atomic_read(&adapter->status) &  in zfcp_erp_adapter_strat_fsf_xconf()
691 			  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
693 	if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_XCONFIG_OK))  in zfcp_erp_adapter_strat_fsf_xconf()
696 	if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)  in zfcp_erp_adapter_strat_fsf_xconf()
697 		zfcp_erp_enqueue_ptp_port(adapter);  in zfcp_erp_adapter_strat_fsf_xconf()
705 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_open_fsf_xport()  local
707 	write_lock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strategy_open_fsf_xport()
709 	write_unlock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strategy_open_fsf_xport()
718 	wait_event(adapter->erp_ready_wq,  in zfcp_erp_adapter_strategy_open_fsf_xport()
719 		   !list_empty(&adapter->erp_ready_head));  in zfcp_erp_adapter_strategy_open_fsf_xport()
735 	if (mempool_resize(act->adapter->pool.sr_data,  in zfcp_erp_adapter_strategy_open_fsf()
736 			   act->adapter->stat_read_buf_num, GFP_KERNEL))  in zfcp_erp_adapter_strategy_open_fsf()
739 	if (mempool_resize(act->adapter->pool.status_read_req,  in zfcp_erp_adapter_strategy_open_fsf()
740 			   act->adapter->stat_read_buf_num, GFP_KERNEL))  in zfcp_erp_adapter_strategy_open_fsf()
743 	atomic_set(&act->adapter->stat_miss, act->adapter->stat_read_buf_num);  in zfcp_erp_adapter_strategy_open_fsf()
744 	if (zfcp_status_read_refill(act->adapter))  in zfcp_erp_adapter_strategy_open_fsf()
752 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_close()  local
754 	/* close queues to ensure that buffers are not accessed by adapter */  in zfcp_erp_adapter_strategy_close()
755 	zfcp_qdio_close(adapter->qdio);  in zfcp_erp_adapter_strategy_close()
756 	zfcp_fsf_req_dismiss_all(adapter);  in zfcp_erp_adapter_strategy_close()
757 	adapter->fsf_req_seq_no = 0;  in zfcp_erp_adapter_strategy_close()
758 	zfcp_fc_wka_ports_force_offline(adapter->gs);  in zfcp_erp_adapter_strategy_close()
760 	zfcp_erp_clear_adapter_status(adapter, ZFCP_STATUS_COMMON_OPEN);  in zfcp_erp_adapter_strategy_close()
763 			  ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);  in zfcp_erp_adapter_strategy_close()
768 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_open()  local
770 	if (zfcp_qdio_open(adapter->qdio)) {  in zfcp_erp_adapter_strategy_open()
773 				  &adapter->status);  in zfcp_erp_adapter_strategy_open()
782 	atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &adapter->status);  in zfcp_erp_adapter_strategy_open()
789 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy()  local
791 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN) {  in zfcp_erp_adapter_strategy()
873 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_open_ptp_port()  local
876 	if (port->wwpn != adapter->peer_wwpn) {  in zfcp_erp_open_ptp_port()
880 	port->d_id = adapter->peer_d_id;  in zfcp_erp_open_ptp_port()
886 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_port_strategy_open_common()  local
894 		if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)  in zfcp_erp_port_strategy_open_common()
1017 			dev_err(&zfcp_sdev->port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_lun()
1050 			dev_err(&port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_port()
1066 static int zfcp_erp_strategy_check_adapter(struct zfcp_adapter *adapter,  in zfcp_erp_strategy_check_adapter()  argument
1071 		atomic_set(&adapter->erp_counter, 0);  in zfcp_erp_strategy_check_adapter()
1072 		zfcp_erp_adapter_unblock(adapter);  in zfcp_erp_strategy_check_adapter()
1076 		atomic_inc(&adapter->erp_counter);  in zfcp_erp_strategy_check_adapter()
1077 		if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS) {  in zfcp_erp_strategy_check_adapter()
1078 			dev_err(&adapter->ccw_device->dev,  in zfcp_erp_strategy_check_adapter()
1081 			zfcp_erp_set_adapter_status(adapter,  in zfcp_erp_strategy_check_adapter()
1087 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {  in zfcp_erp_strategy_check_adapter()
1088 		zfcp_erp_adapter_block(adapter, 0);  in zfcp_erp_strategy_check_adapter()
1097 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_strategy_check_target()  local
1113 		result = zfcp_erp_strategy_check_adapter(adapter, result);  in zfcp_erp_strategy_check_target()
1137 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_strategy_statechange()  local
1145 		if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {  in zfcp_erp_strategy_statechange()
1146 			_zfcp_erp_adapter_reopen(adapter,  in zfcp_erp_strategy_statechange()
1178 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_action_dequeue()  local
1181 	adapter->erp_total_count--;  in zfcp_erp_action_dequeue()
1183 		adapter->erp_low_mem_count--;  in zfcp_erp_action_dequeue()
1205 				  &erp_action->adapter->status);  in zfcp_erp_action_dequeue()
1212 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_action_cleanup()  local
1232 			register_service_level(&adapter->service_level);  in zfcp_erp_action_cleanup()
1233 			queue_work(adapter->work_queue, &adapter->scan_work);  in zfcp_erp_action_cleanup()
1234 			queue_work(adapter->work_queue, &adapter->ns_up_work);  in zfcp_erp_action_cleanup()
1236 			unregister_service_level(&adapter->service_level);  in zfcp_erp_action_cleanup()
1238 		kref_put(&adapter->ref, zfcp_adapter_release);  in zfcp_erp_action_cleanup()
1262 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_strategy()  local
1264 	kref_get(&adapter->ref);  in zfcp_erp_strategy()
1266 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1283 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1285 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1293 			++adapter->erp_low_mem_count;  in zfcp_erp_strategy()
1296 		if (adapter->erp_total_count == adapter->erp_low_mem_count)  in zfcp_erp_strategy()
1297 			_zfcp_erp_adapter_reopen(adapter, 0, "erstgy1");  in zfcp_erp_strategy()
1306 			--adapter->erp_low_mem_count;  in zfcp_erp_strategy()
1324 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1329 	kref_put(&adapter->ref, zfcp_adapter_release);  in zfcp_erp_strategy()
1335 	struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;  in zfcp_erp_thread()  local
1341 		wait_event_interruptible(adapter->erp_ready_wq,  in zfcp_erp_thread()
1342 			   !list_empty(&adapter->erp_ready_head) ||  in zfcp_erp_thread()
1348 		write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_thread()
1349 		next = adapter->erp_ready_head.next;  in zfcp_erp_thread()
1350 		write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_thread()
1352 		if (next != &adapter->erp_ready_head) {  in zfcp_erp_thread()
1357 				zfcp_erp_wakeup(adapter);  in zfcp_erp_thread()
1365  * zfcp_erp_thread_setup - Start ERP thread for adapter
1366  * @adapter: Adapter to start the ERP thread for
1370 int zfcp_erp_thread_setup(struct zfcp_adapter *adapter)  in zfcp_erp_thread_setup()  argument
1374 	thread = kthread_run(zfcp_erp_thread, adapter, "zfcperp%s",  in zfcp_erp_thread_setup()
1375 			     dev_name(&adapter->ccw_device->dev));  in zfcp_erp_thread_setup()
1377 		dev_err(&adapter->ccw_device->dev,  in zfcp_erp_thread_setup()
1382 	adapter->erp_thread = thread;  in zfcp_erp_thread_setup()
1388  * @adapter: Adapter where the ERP thread should be stopped.
1390  * The caller of this routine ensures that the specified adapter has
1395 void zfcp_erp_thread_kill(struct zfcp_adapter *adapter)  in zfcp_erp_thread_kill()  argument
1397 	kthread_stop(adapter->erp_thread);  in zfcp_erp_thread_kill()
1398 	adapter->erp_thread = NULL;  in zfcp_erp_thread_kill()
1399 	WARN_ON(!list_empty(&adapter->erp_ready_head));  in zfcp_erp_thread_kill()
1400 	WARN_ON(!list_empty(&adapter->erp_running_head));  in zfcp_erp_thread_kill()
1404  * zfcp_erp_wait - wait for completion of error recovery on an adapter
1405  * @adapter: adapter for which to wait for completion of its error recovery
1407 void zfcp_erp_wait(struct zfcp_adapter *adapter)  in zfcp_erp_wait()  argument
1409 	wait_event(adapter->erp_done_wqh,  in zfcp_erp_wait()
1410 		   !(atomic_read(&adapter->status) &  in zfcp_erp_wait()
1415  * zfcp_erp_set_adapter_status - set adapter status bits
1416  * @adapter: adapter to change the status
1421 void zfcp_erp_set_adapter_status(struct zfcp_adapter *adapter, u32 mask)  in zfcp_erp_set_adapter_status()  argument
1428 	atomic_set_mask(mask, &adapter->status);  in zfcp_erp_set_adapter_status()
1433 	read_lock_irqsave(&adapter->port_list_lock, flags);  in zfcp_erp_set_adapter_status()
1434 	list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_set_adapter_status()
1436 	read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_erp_set_adapter_status()
1438 	shost_for_each_device(sdev, adapter->scsi_host)  in zfcp_erp_set_adapter_status()
1443  * zfcp_erp_clear_adapter_status - clear adapter status bits
1444  * @adapter: adapter to change the status
1449 void zfcp_erp_clear_adapter_status(struct zfcp_adapter *adapter, u32 mask)  in zfcp_erp_clear_adapter_status()  argument
1457 	atomic_clear_mask(mask, &adapter->status);  in zfcp_erp_clear_adapter_status()
1463 		atomic_set(&adapter->erp_counter, 0);  in zfcp_erp_clear_adapter_status()
1465 	read_lock_irqsave(&adapter->port_list_lock, flags);  in zfcp_erp_clear_adapter_status()
1466 	list_for_each_entry(port, &adapter->port_list, list) {  in zfcp_erp_clear_adapter_status()
1471 	read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_erp_clear_adapter_status()
1473 	shost_for_each_device(sdev, adapter->scsi_host) {  in zfcp_erp_clear_adapter_status()
1497 	shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_set_port_status()
1505  * @port: adapter to change the status
1524 	shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_clear_port_status()