51 static void zfcp_erp_adapter_block(struct zfcp_adapter *adapter, int mask)  in zfcp_erp_adapter_block()  argument
53 	zfcp_erp_clear_adapter_status(adapter,  in zfcp_erp_adapter_block()
61 	list_for_each_entry(curr_act, &act->adapter->erp_running_head, list)  in zfcp_erp_action_is_running()
69 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_action_ready()  local
71 	list_move(&act->list, &adapter->erp_ready_head);  in zfcp_erp_action_ready()
73 	wake_up(&adapter->erp_ready_wq);  in zfcp_erp_action_ready()
99 		spin_lock(port->adapter->scsi_host->host_lock);  in zfcp_erp_action_dismiss_port()
100 		__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_action_dismiss_port()
103 		spin_unlock(port->adapter->scsi_host->host_lock);  in zfcp_erp_action_dismiss_port()
107 static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)  in zfcp_erp_action_dismiss_adapter()  argument
111 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_INUSE)  in zfcp_erp_action_dismiss_adapter()
112 		zfcp_erp_action_dismiss(&adapter->erp_action);  in zfcp_erp_action_dismiss_adapter()
114 		read_lock(&adapter->port_list_lock);  in zfcp_erp_action_dismiss_adapter()
115 		list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_action_dismiss_adapter()
117 		read_unlock(&adapter->port_list_lock);  in zfcp_erp_action_dismiss_adapter()
122 	enum zfcp_erp_act_type want, struct zfcp_adapter *adapter,  in zfcp_erp_handle_failed()  argument
148 		if (atomic_read(&adapter->status) &  in zfcp_erp_handle_failed()
153 				adapter, ZFCP_STATUS_COMMON_ERP_FAILED);  in zfcp_erp_handle_failed()
162 				 struct zfcp_adapter *adapter,  in zfcp_erp_required_act()  argument
192 		a_status = atomic_read(&adapter->status);  in zfcp_erp_required_act()
202 		a_status = atomic_read(&adapter->status);  in zfcp_erp_required_act()
207 			return 0; /* shutdown requested for closed adapter */  in zfcp_erp_required_act()
215 						  struct zfcp_adapter *adapter,  in zfcp_erp_setup_act()  argument
258 		kref_get(&adapter->ref);  in zfcp_erp_setup_act()
259 		zfcp_erp_action_dismiss_adapter(adapter);  in zfcp_erp_setup_act()
260 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);  in zfcp_erp_setup_act()
261 		erp_action = &adapter->erp_action;  in zfcp_erp_setup_act()
264 		if (!(atomic_read(&adapter->status) &  in zfcp_erp_setup_act()
270 	WARN_ON_ONCE(erp_action->adapter != adapter);  in zfcp_erp_setup_act()
282 				    struct zfcp_adapter *adapter,  in zfcp_erp_action_enqueue()  argument
290 	need = zfcp_erp_handle_failed(want, adapter, port, sdev);  in zfcp_erp_action_enqueue()
296 	if (!adapter->erp_thread) {  in zfcp_erp_action_enqueue()
301 	need = zfcp_erp_required_act(want, adapter, port, sdev);  in zfcp_erp_action_enqueue()
305 	act = zfcp_erp_setup_act(need, act_status, adapter, port, sdev);  in zfcp_erp_action_enqueue()
310 	atomic_or(ZFCP_STATUS_ADAPTER_ERP_PENDING, &adapter->status);  in zfcp_erp_action_enqueue()
311 	++adapter->erp_total_count;  in zfcp_erp_action_enqueue()
312 	list_add_tail(&act->list, &adapter->erp_ready_head);  in zfcp_erp_action_enqueue()
313 	wake_up(&adapter->erp_ready_wq);  in zfcp_erp_action_enqueue()
315 	zfcp_dbf_rec_trig(dbftag, adapter, port, sdev, want, need);  in zfcp_erp_action_enqueue()
319 				      struct zfcp_adapter *adapter,  in zfcp_erp_port_forced_no_port_dbf()  argument
325 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_no_port_dbf()
333 	zfcp_dbf_rec_trig(dbftag, adapter, &tmpport, NULL,  in zfcp_erp_port_forced_no_port_dbf()
336 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_no_port_dbf()
339 static void _zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter,  in _zfcp_erp_adapter_reopen()  argument
342 	zfcp_erp_adapter_block(adapter, clear_mask);  in _zfcp_erp_adapter_reopen()
343 	zfcp_scsi_schedule_rports_block(adapter);  in _zfcp_erp_adapter_reopen()
346 				adapter, NULL, NULL, dbftag, 0);  in _zfcp_erp_adapter_reopen()
350  * zfcp_erp_adapter_reopen - Reopen adapter.
351  * @adapter: Adapter to reopen.
355 void zfcp_erp_adapter_reopen(struct zfcp_adapter *adapter, int clear,  in zfcp_erp_adapter_reopen()  argument
360 	zfcp_erp_adapter_block(adapter, clear);  in zfcp_erp_adapter_reopen()
361 	zfcp_scsi_schedule_rports_block(adapter);  in zfcp_erp_adapter_reopen()
363 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_adapter_reopen()
364 	zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_ADAPTER, adapter,  in zfcp_erp_adapter_reopen()
366 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_adapter_reopen()
370  * zfcp_erp_adapter_shutdown - Shutdown adapter.
371  * @adapter: Adapter to shut down.
375 void zfcp_erp_adapter_shutdown(struct zfcp_adapter *adapter, int clear,  in zfcp_erp_adapter_shutdown()  argument
379 	zfcp_erp_adapter_reopen(adapter, clear | flags, dbftag);  in zfcp_erp_adapter_shutdown()
407 				port->adapter, port, NULL, dbftag, 0);  in _zfcp_erp_port_forced_reopen()
420 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_forced_reopen()  local
422 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen()
424 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen()
434 				port->adapter, port, NULL, dbftag, 0);  in _zfcp_erp_port_reopen()
446 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_reopen()  local
448 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_reopen()
450 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_reopen()
463 	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;  in _zfcp_erp_lun_reopen()  local
467 	zfcp_erp_action_enqueue(ZFCP_ERP_ACTION_REOPEN_LUN, adapter,  in _zfcp_erp_lun_reopen()
484 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_reopen()  local
486 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_lun_reopen()
488 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_lun_reopen()
518 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_shutdown_wait()  local
521 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_lun_shutdown_wait()
523 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_lun_shutdown_wait()
525 	zfcp_erp_wait(adapter);  in zfcp_erp_lun_shutdown_wait()
533 static void zfcp_erp_adapter_unblock(struct zfcp_adapter *adapter)  in zfcp_erp_adapter_unblock()  argument
536 				       &adapter->status))  in zfcp_erp_adapter_unblock()
537 		zfcp_dbf_rec_run("eraubl1", &adapter->erp_action);  in zfcp_erp_adapter_unblock()
538 	atomic_or(ZFCP_STATUS_COMMON_UNBLOCKED, &adapter->status);  in zfcp_erp_adapter_unblock()
561 	list_move(&erp_action->list, &erp_action->adapter->erp_running_head);  in zfcp_erp_action_to_running()
567 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_strategy_check_fsfreq()  local
573 	spin_lock(&adapter->req_list->lock);  in zfcp_erp_strategy_check_fsfreq()
574 	req = _zfcp_reqlist_find(adapter->req_list, act->fsf_req_id);  in zfcp_erp_strategy_check_fsfreq()
591 	spin_unlock(&adapter->req_list->lock);  in zfcp_erp_strategy_check_fsfreq()
601 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_notify()  local
604 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_notify()
609 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_notify()
644 void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter,  in zfcp_erp_port_forced_reopen_all()  argument
650 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen_all()
651 	read_lock(&adapter->port_list_lock);  in zfcp_erp_port_forced_reopen_all()
652 	list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_port_forced_reopen_all()
654 	read_unlock(&adapter->port_list_lock);  in zfcp_erp_port_forced_reopen_all()
655 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_port_forced_reopen_all()
658 static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,  in _zfcp_erp_port_reopen_all()  argument
663 	read_lock(&adapter->port_list_lock);  in _zfcp_erp_port_reopen_all()
664 	list_for_each_entry(port, &adapter->port_list, list)  in _zfcp_erp_port_reopen_all()
666 	read_unlock(&adapter->port_list_lock);  in _zfcp_erp_port_reopen_all()
674 	spin_lock(port->adapter->scsi_host->host_lock);  in _zfcp_erp_lun_reopen_all()
675 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in _zfcp_erp_lun_reopen_all()
678 	spin_unlock(port->adapter->scsi_host->host_lock);  in _zfcp_erp_lun_reopen_all()
685 		_zfcp_erp_adapter_reopen(act->adapter, 0, "ersff_1");  in zfcp_erp_strategy_followup_failed()
703 		_zfcp_erp_port_reopen_all(act->adapter, 0, "ersfs_1");  in zfcp_erp_strategy_followup_success()
717 static void zfcp_erp_wakeup(struct zfcp_adapter *adapter)  in zfcp_erp_wakeup()  argument
721 	read_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_wakeup()
722 	if (list_empty(&adapter->erp_ready_head) &&  in zfcp_erp_wakeup()
723 	    list_empty(&adapter->erp_running_head)) {  in zfcp_erp_wakeup()
725 					  &adapter->status);  in zfcp_erp_wakeup()
726 			wake_up(&adapter->erp_done_wqh);  in zfcp_erp_wakeup()
728 	read_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_wakeup()
731 static void zfcp_erp_enqueue_ptp_port(struct zfcp_adapter *adapter)  in zfcp_erp_enqueue_ptp_port()  argument
734 	port = zfcp_port_enqueue(adapter, adapter->peer_wwpn, 0,  in zfcp_erp_enqueue_ptp_port()
735 				 adapter->peer_d_id);  in zfcp_erp_enqueue_ptp_port()
746 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_adapter_strat_fsf_xconf()  local
748 	atomic_andnot(ZFCP_STATUS_ADAPTER_XCONFIG_OK, &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
752 				  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
753 		write_lock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strat_fsf_xconf()
755 		write_unlock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strat_fsf_xconf()
758 					  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
762 		wait_event(adapter->erp_ready_wq,  in zfcp_erp_adapter_strat_fsf_xconf()
763 			   !list_empty(&adapter->erp_ready_head));  in zfcp_erp_adapter_strat_fsf_xconf()
767 		if (!(atomic_read(&adapter->status) &  in zfcp_erp_adapter_strat_fsf_xconf()
776 			  &adapter->status);  in zfcp_erp_adapter_strat_fsf_xconf()
778 	if (!(atomic_read(&adapter->status) & ZFCP_STATUS_ADAPTER_XCONFIG_OK))  in zfcp_erp_adapter_strat_fsf_xconf()
785 zfcp_erp_adapter_strategy_open_ptp_port(struct zfcp_adapter *const adapter)  in zfcp_erp_adapter_strategy_open_ptp_port()  argument
787 	if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)  in zfcp_erp_adapter_strategy_open_ptp_port()
788 		zfcp_erp_enqueue_ptp_port(adapter);  in zfcp_erp_adapter_strategy_open_ptp_port()
795 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_open_fsf_xport()  local
797 	write_lock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strategy_open_fsf_xport()
799 	write_unlock_irq(&adapter->erp_lock);  in zfcp_erp_adapter_strategy_open_fsf_xport()
808 	wait_event(adapter->erp_ready_wq,  in zfcp_erp_adapter_strategy_open_fsf_xport()
809 		   !list_empty(&adapter->erp_ready_head));  in zfcp_erp_adapter_strategy_open_fsf_xport()
818 zfcp_erp_adapter_strategy_alloc_shost(struct zfcp_adapter *const adapter)  in zfcp_erp_adapter_strategy_alloc_shost()  argument
821 		&adapter->diagnostics->config_data;  in zfcp_erp_adapter_strategy_alloc_shost()
823 		&adapter->diagnostics->port_data;  in zfcp_erp_adapter_strategy_alloc_shost()
827 	rc = zfcp_scsi_adapter_register(adapter);  in zfcp_erp_adapter_strategy_alloc_shost()
845 	zfcp_scsi_shost_update_config_data(adapter, &config_data->data,  in zfcp_erp_adapter_strategy_alloc_shost()
849 	if (adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT) {  in zfcp_erp_adapter_strategy_alloc_shost()
851 		zfcp_scsi_shost_update_port_data(adapter, &port_data->data);  in zfcp_erp_adapter_strategy_alloc_shost()
865 		zfcp_fsf_fc_host_link_down(adapter);  in zfcp_erp_adapter_strategy_alloc_shost()
879 	if (zfcp_erp_adapter_strategy_alloc_shost(act->adapter) ==  in zfcp_erp_adapter_strategy_open_fsf()
883 	zfcp_erp_adapter_strategy_open_ptp_port(act->adapter);  in zfcp_erp_adapter_strategy_open_fsf()
885 	if (mempool_resize(act->adapter->pool.sr_data,  in zfcp_erp_adapter_strategy_open_fsf()
886 			   act->adapter->stat_read_buf_num))  in zfcp_erp_adapter_strategy_open_fsf()
889 	if (mempool_resize(act->adapter->pool.status_read_req,  in zfcp_erp_adapter_strategy_open_fsf()
890 			   act->adapter->stat_read_buf_num))  in zfcp_erp_adapter_strategy_open_fsf()
893 	atomic_set(&act->adapter->stat_miss, act->adapter->stat_read_buf_num);  in zfcp_erp_adapter_strategy_open_fsf()
894 	if (zfcp_status_read_refill(act->adapter))  in zfcp_erp_adapter_strategy_open_fsf()
902 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_close()  local
904 	/* close queues to ensure that buffers are not accessed by adapter */  in zfcp_erp_adapter_strategy_close()
905 	zfcp_qdio_close(adapter->qdio);  in zfcp_erp_adapter_strategy_close()
906 	zfcp_fsf_req_dismiss_all(adapter);  in zfcp_erp_adapter_strategy_close()
907 	adapter->fsf_req_seq_no = 0;  in zfcp_erp_adapter_strategy_close()
908 	zfcp_fc_wka_ports_force_offline(adapter->gs);  in zfcp_erp_adapter_strategy_close()
910 	zfcp_erp_clear_adapter_status(adapter, ZFCP_STATUS_COMMON_OPEN);  in zfcp_erp_adapter_strategy_close()
913 			  ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);  in zfcp_erp_adapter_strategy_close()
919 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy_open()  local
921 	if (zfcp_qdio_open(adapter->qdio)) {  in zfcp_erp_adapter_strategy_open()
924 				  &adapter->status);  in zfcp_erp_adapter_strategy_open()
933 	atomic_or(ZFCP_STATUS_COMMON_OPEN, &adapter->status);  in zfcp_erp_adapter_strategy_open()
941 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_adapter_strategy()  local
943 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_OPEN) {  in zfcp_erp_adapter_strategy()
1030 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_open_ptp_port()  local
1033 	if (port->wwpn != adapter->peer_wwpn) {  in zfcp_erp_open_ptp_port()
1037 	port->d_id = adapter->peer_d_id;  in zfcp_erp_open_ptp_port()
1044 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_port_strategy_open_common()  local
1052 		if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)  in zfcp_erp_port_strategy_open_common()
1196 			dev_err(&zfcp_sdev->port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_lun()
1236 			dev_err(&port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_port()
1259 	struct zfcp_adapter *adapter, enum zfcp_erp_act_result result)  in zfcp_erp_strategy_check_adapter()  argument
1263 		atomic_set(&adapter->erp_counter, 0);  in zfcp_erp_strategy_check_adapter()
1264 		zfcp_erp_adapter_unblock(adapter);  in zfcp_erp_strategy_check_adapter()
1268 		atomic_inc(&adapter->erp_counter);  in zfcp_erp_strategy_check_adapter()
1269 		if (atomic_read(&adapter->erp_counter) > ZFCP_MAX_ERPS) {  in zfcp_erp_strategy_check_adapter()
1270 			dev_err(&adapter->ccw_device->dev,  in zfcp_erp_strategy_check_adapter()
1273 			zfcp_erp_set_adapter_status(adapter,  in zfcp_erp_strategy_check_adapter()
1285 	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {  in zfcp_erp_strategy_check_adapter()
1286 		zfcp_erp_adapter_block(adapter, 0);  in zfcp_erp_strategy_check_adapter()
1295 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_strategy_check_target()  local
1311 		result = zfcp_erp_strategy_check_adapter(adapter, result);  in zfcp_erp_strategy_check_target()
1336 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_strategy_statechange()  local
1344 		if (zfcp_erp_strat_change_det(&adapter->status, erp_status)) {  in zfcp_erp_strategy_statechange()
1345 			_zfcp_erp_adapter_reopen(adapter,  in zfcp_erp_strategy_statechange()
1377 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_action_dequeue()  local
1380 	adapter->erp_total_count--;  in zfcp_erp_action_dequeue()
1382 		adapter->erp_low_mem_count--;  in zfcp_erp_action_dequeue()
1404 				  &erp_action->adapter->status);  in zfcp_erp_action_dequeue()
1416 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_try_rport_unblock()  local
1418 	struct Scsi_Host *shost = adapter->scsi_host;  in zfcp_erp_try_rport_unblock()
1421 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_try_rport_unblock()
1427 		 * local link down (adapter erp_failed but not clear unblock)  in zfcp_erp_try_rport_unblock()
1430 		write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_try_rport_unblock()
1456 			write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_try_rport_unblock()
1465 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_try_rport_unblock()
1471 	struct zfcp_adapter *adapter = act->adapter;  in zfcp_erp_action_cleanup()  local
1498 			register_service_level(&adapter->service_level);  in zfcp_erp_action_cleanup()
1499 			zfcp_fc_conditional_port_scan(adapter);  in zfcp_erp_action_cleanup()
1500 			queue_work(adapter->work_queue, &adapter->ns_up_work);  in zfcp_erp_action_cleanup()
1502 			unregister_service_level(&adapter->service_level);  in zfcp_erp_action_cleanup()
1504 		kref_put(&adapter->ref, zfcp_adapter_release);  in zfcp_erp_action_cleanup()
1530 	struct zfcp_adapter *adapter = erp_action->adapter;  in zfcp_erp_strategy()  local
1532 	kref_get(&adapter->ref);  in zfcp_erp_strategy()
1534 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1551 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1553 	write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1561 			++adapter->erp_low_mem_count;  in zfcp_erp_strategy()
1564 		if (adapter->erp_total_count == adapter->erp_low_mem_count)  in zfcp_erp_strategy()
1565 			_zfcp_erp_adapter_reopen(adapter, 0, "erstgy1");  in zfcp_erp_strategy()
1574 			--adapter->erp_low_mem_count;  in zfcp_erp_strategy()
1598 	write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_strategy()
1603 	kref_put(&adapter->ref, zfcp_adapter_release);  in zfcp_erp_strategy()
1609 	struct zfcp_adapter *adapter = (struct zfcp_adapter *) data;  in zfcp_erp_thread()  local
1614 		wait_event_interruptible(adapter->erp_ready_wq,  in zfcp_erp_thread()
1615 			   !list_empty(&adapter->erp_ready_head) ||  in zfcp_erp_thread()
1621 		write_lock_irqsave(&adapter->erp_lock, flags);  in zfcp_erp_thread()
1622 		act = list_first_entry_or_null(&adapter->erp_ready_head,  in zfcp_erp_thread()
1624 		write_unlock_irqrestore(&adapter->erp_lock, flags);  in zfcp_erp_thread()
1629 				zfcp_erp_wakeup(adapter);  in zfcp_erp_thread()
1637  * zfcp_erp_thread_setup - Start ERP thread for adapter
1638  * @adapter: Adapter to start the ERP thread for
1642 int zfcp_erp_thread_setup(struct zfcp_adapter *adapter)  in zfcp_erp_thread_setup()  argument
1646 	thread = kthread_run(zfcp_erp_thread, adapter, "zfcperp%s",  in zfcp_erp_thread_setup()
1647 			     dev_name(&adapter->ccw_device->dev));  in zfcp_erp_thread_setup()
1649 		dev_err(&adapter->ccw_device->dev,  in zfcp_erp_thread_setup()
1654 	adapter->erp_thread = thread;  in zfcp_erp_thread_setup()
1660  * @adapter: Adapter where the ERP thread should be stopped.
1662  * The caller of this routine ensures that the specified adapter has
1667 void zfcp_erp_thread_kill(struct zfcp_adapter *adapter)  in zfcp_erp_thread_kill()  argument
1669 	kthread_stop(adapter->erp_thread);  in zfcp_erp_thread_kill()
1670 	adapter->erp_thread = NULL;  in zfcp_erp_thread_kill()
1671 	WARN_ON(!list_empty(&adapter->erp_ready_head));  in zfcp_erp_thread_kill()
1672 	WARN_ON(!list_empty(&adapter->erp_running_head));  in zfcp_erp_thread_kill()
1676  * zfcp_erp_wait - wait for completion of error recovery on an adapter
1677  * @adapter: adapter for which to wait for completion of its error recovery
1679 void zfcp_erp_wait(struct zfcp_adapter *adapter)  in zfcp_erp_wait()  argument
1681 	wait_event(adapter->erp_done_wqh,  in zfcp_erp_wait()
1682 		   !(atomic_read(&adapter->status) &  in zfcp_erp_wait()
1687  * zfcp_erp_set_adapter_status - set adapter status bits
1688  * @adapter: adapter to change the status
1693 void zfcp_erp_set_adapter_status(struct zfcp_adapter *adapter, u32 mask)  in zfcp_erp_set_adapter_status()  argument
1700 	atomic_or(mask, &adapter->status);  in zfcp_erp_set_adapter_status()
1705 	read_lock_irqsave(&adapter->port_list_lock, flags);  in zfcp_erp_set_adapter_status()
1706 	list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_set_adapter_status()
1708 	read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_erp_set_adapter_status()
1714 	if (adapter->scsi_host == NULL)  in zfcp_erp_set_adapter_status()
1717 	spin_lock_irqsave(adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_adapter_status()
1718 	__shost_for_each_device(sdev, adapter->scsi_host)  in zfcp_erp_set_adapter_status()
1720 	spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_adapter_status()
1724  * zfcp_erp_clear_adapter_status - clear adapter status bits
1725  * @adapter: adapter to change the status
1730 void zfcp_erp_clear_adapter_status(struct zfcp_adapter *adapter, u32 mask)  in zfcp_erp_clear_adapter_status()  argument
1738 	atomic_andnot(mask, &adapter->status);  in zfcp_erp_clear_adapter_status()
1744 		atomic_set(&adapter->erp_counter, 0);  in zfcp_erp_clear_adapter_status()
1746 	read_lock_irqsave(&adapter->port_list_lock, flags);  in zfcp_erp_clear_adapter_status()
1747 	list_for_each_entry(port, &adapter->port_list, list) {  in zfcp_erp_clear_adapter_status()
1752 	read_unlock_irqrestore(&adapter->port_list_lock, flags);  in zfcp_erp_clear_adapter_status()
1758 	if (adapter->scsi_host == NULL)  in zfcp_erp_clear_adapter_status()
1761 	spin_lock_irqsave(adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_adapter_status()
1762 	__shost_for_each_device(sdev, adapter->scsi_host) {  in zfcp_erp_clear_adapter_status()
1767 	spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_adapter_status()
1788 	spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_port_status()
1789 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_set_port_status()
1793 	spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_port_status()
1798  * @port: adapter to change the status
1818 	spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_port_status()
1819 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_clear_port_status()
1826 	spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_port_status()
1857  * zfcp_erp_adapter_reset_sync() - Really reopen adapter and wait.
1858  * @adapter: Pointer to zfcp_adapter to reopen.
1861 void zfcp_erp_adapter_reset_sync(struct zfcp_adapter *adapter, char *dbftag)  in zfcp_erp_adapter_reset_sync()  argument
1863 	zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);  in zfcp_erp_adapter_reset_sync()
1864 	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, dbftag);  in zfcp_erp_adapter_reset_sync()
1865 	zfcp_erp_wait(adapter);  in zfcp_erp_adapter_reset_sync()