99 static void zfcp_erp_action_dismiss_port(struct zfcp_port *port)  in zfcp_erp_action_dismiss_port()  argument
103 	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_INUSE)  in zfcp_erp_action_dismiss_port()
104 		zfcp_erp_action_dismiss(&port->erp_action);  in zfcp_erp_action_dismiss_port()
106 		spin_lock(port->adapter->scsi_host->host_lock);  in zfcp_erp_action_dismiss_port()
107 		__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_action_dismiss_port()
108 			if (sdev_to_zfcp(sdev)->port == port)  in zfcp_erp_action_dismiss_port()
110 		spin_unlock(port->adapter->scsi_host->host_lock);  in zfcp_erp_action_dismiss_port()
116 	struct zfcp_port *port;  in zfcp_erp_action_dismiss_adapter()  local
122 		list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_action_dismiss_adapter()
123 		    zfcp_erp_action_dismiss_port(port);  in zfcp_erp_action_dismiss_adapter()
129 				 struct zfcp_port *port,  in zfcp_erp_required_act()  argument
142 		p_status = atomic_read(&port->status);  in zfcp_erp_required_act()
150 		p_status = atomic_read(&port->status);  in zfcp_erp_required_act()
155 		p_status = atomic_read(&port->status);  in zfcp_erp_required_act()
181 						  struct zfcp_port *port,  in zfcp_erp_setup_act()  argument
197 		erp_action->port = port;  in zfcp_erp_setup_act()
206 		if (!get_device(&port->dev))  in zfcp_erp_setup_act()
208 		zfcp_erp_action_dismiss_port(port);  in zfcp_erp_setup_act()
209 		atomic_set_mask(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);  in zfcp_erp_setup_act()
210 		erp_action = &port->erp_action;  in zfcp_erp_setup_act()
212 		erp_action->port = port;  in zfcp_erp_setup_act()
213 		if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING))  in zfcp_erp_setup_act()
240 				   struct zfcp_port *port,  in zfcp_erp_action_enqueue()  argument
250 	need = zfcp_erp_required_act(want, adapter, port, sdev);  in zfcp_erp_action_enqueue()
254 	act = zfcp_erp_setup_act(need, act_status, adapter, port, sdev);  in zfcp_erp_action_enqueue()
263 	zfcp_dbf_rec_trig(id, adapter, port, sdev, want, need);  in zfcp_erp_action_enqueue()
325 void zfcp_erp_port_shutdown(struct zfcp_port *port, int clear, char *id)  in zfcp_erp_port_shutdown()  argument
328 	zfcp_erp_port_reopen(port, clear | flags, id);  in zfcp_erp_port_shutdown()
331 static void zfcp_erp_port_block(struct zfcp_port *port, int clear)  in zfcp_erp_port_block()  argument
333 	zfcp_erp_clear_port_status(port,  in zfcp_erp_port_block()
337 static void _zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear,  in _zfcp_erp_port_forced_reopen()  argument
340 	zfcp_erp_port_block(port, clear);  in _zfcp_erp_port_forced_reopen()
341 	zfcp_scsi_schedule_rport_block(port);  in _zfcp_erp_port_forced_reopen()
343 	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED)  in _zfcp_erp_port_forced_reopen()
347 				port->adapter, port, NULL, id, 0);  in _zfcp_erp_port_forced_reopen()
356 void zfcp_erp_port_forced_reopen(struct zfcp_port *port, int clear, char *id)  in zfcp_erp_port_forced_reopen()  argument
359 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_forced_reopen()
362 	_zfcp_erp_port_forced_reopen(port, clear, id);  in zfcp_erp_port_forced_reopen()
366 static int _zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)  in _zfcp_erp_port_reopen()  argument
368 	zfcp_erp_port_block(port, clear);  in _zfcp_erp_port_reopen()
369 	zfcp_scsi_schedule_rport_block(port);  in _zfcp_erp_port_reopen()
371 	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {  in _zfcp_erp_port_reopen()
373 		zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ERP_FAILED);  in _zfcp_erp_port_reopen()
378 				       port->adapter, port, NULL, id, 0);  in _zfcp_erp_port_reopen()
389 int zfcp_erp_port_reopen(struct zfcp_port *port, int clear, char *id)  in zfcp_erp_port_reopen()  argument
393 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_port_reopen()
396 	retval = _zfcp_erp_port_reopen(port, clear, id);  in zfcp_erp_port_reopen()
412 	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;  in _zfcp_erp_lun_reopen()
420 				zfcp_sdev->port, sdev, id, act_status);  in _zfcp_erp_lun_reopen()
435 	struct zfcp_port *port = zfcp_sdev->port;  in zfcp_erp_lun_reopen()  local
436 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_reopen()
469 	struct zfcp_port *port = zfcp_sdev->port;  in zfcp_erp_lun_shutdown_wait()  local
470 	struct zfcp_adapter *adapter = port->adapter;  in zfcp_erp_lun_shutdown_wait()
492 static void zfcp_erp_port_unblock(struct zfcp_port *port)  in zfcp_erp_port_unblock()  argument
494 	if (status_change_set(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status))  in zfcp_erp_port_unblock()
495 		zfcp_dbf_rec_run("erpubl1", &port->erp_action);  in zfcp_erp_port_unblock()
496 	atomic_set_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &port->status);  in zfcp_erp_port_unblock()
585 	struct zfcp_port *port;  in _zfcp_erp_port_reopen_all()  local
588 	list_for_each_entry(port, &adapter->port_list, list)  in _zfcp_erp_port_reopen_all()
589 		_zfcp_erp_port_reopen(port, clear, id);  in _zfcp_erp_port_reopen_all()
593 static void _zfcp_erp_lun_reopen_all(struct zfcp_port *port, int clear,  in _zfcp_erp_lun_reopen_all()  argument
598 	spin_lock(port->adapter->scsi_host->host_lock);  in _zfcp_erp_lun_reopen_all()
599 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in _zfcp_erp_lun_reopen_all()
600 		if (sdev_to_zfcp(sdev)->port == port)  in _zfcp_erp_lun_reopen_all()
602 	spin_unlock(port->adapter->scsi_host->host_lock);  in _zfcp_erp_lun_reopen_all()
612 		_zfcp_erp_port_forced_reopen(act->port, 0, "ersff_2");  in zfcp_erp_strategy_followup_failed()
615 		_zfcp_erp_port_reopen(act->port, 0, "ersff_3");  in zfcp_erp_strategy_followup_failed()
630 		_zfcp_erp_port_reopen(act->port, 0, "ersfs_2");  in zfcp_erp_strategy_followup_success()
633 		_zfcp_erp_lun_reopen_all(act->port, 0, "ersfs_3");  in zfcp_erp_strategy_followup_success()
654 	struct zfcp_port *port;  in zfcp_erp_enqueue_ptp_port()  local
655 	port = zfcp_port_enqueue(adapter, adapter->peer_wwpn, 0,  in zfcp_erp_enqueue_ptp_port()
657 	if (IS_ERR(port)) /* error or port already attached */  in zfcp_erp_enqueue_ptp_port()
659 	_zfcp_erp_port_reopen(port, 0, "ereptp1");  in zfcp_erp_enqueue_ptp_port()
826 	struct zfcp_port *port = erp_action->port;  in zfcp_erp_port_forced_strategy()  local
827 	int status = atomic_read(&port->status);  in zfcp_erp_port_forced_strategy()
873 	struct zfcp_port *port = act->port;  in zfcp_erp_open_ptp_port()  local
875 	if (port->wwpn != adapter->peer_wwpn) {  in zfcp_erp_open_ptp_port()
876 		zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ERP_FAILED);  in zfcp_erp_open_ptp_port()
879 	port->d_id = adapter->peer_d_id;  in zfcp_erp_open_ptp_port()
886 	struct zfcp_port *port = act->port;  in zfcp_erp_port_strategy_open_common()  local
887 	int p_status = atomic_read(&port->status);  in zfcp_erp_port_strategy_open_common()
895 		if (!port->d_id) {  in zfcp_erp_port_strategy_open_common()
896 			zfcp_fc_trigger_did_lookup(port);  in zfcp_erp_port_strategy_open_common()
904 			if (!port->d_id) {  in zfcp_erp_port_strategy_open_common()
905 				zfcp_fc_trigger_did_lookup(port);  in zfcp_erp_port_strategy_open_common()
910 		if (port->d_id && !(p_status & ZFCP_STATUS_COMMON_NOESC)) {  in zfcp_erp_port_strategy_open_common()
911 			port->d_id = 0;  in zfcp_erp_port_strategy_open_common()
921 	struct zfcp_port *port = erp_action->port;  in zfcp_erp_port_strategy()  local
922 	int p_status = atomic_read(&port->status);  in zfcp_erp_port_strategy()
1014 			dev_err(&zfcp_sdev->port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_lun()
1018 				(unsigned long long)zfcp_sdev->port->wwpn);  in zfcp_erp_strategy_check_lun()
1032 static int zfcp_erp_strategy_check_port(struct zfcp_port *port, int result)  in zfcp_erp_strategy_check_port()  argument
1036 		atomic_set(&port->erp_counter, 0);  in zfcp_erp_strategy_check_port()
1037 		zfcp_erp_port_unblock(port);  in zfcp_erp_strategy_check_port()
1041 		if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC) {  in zfcp_erp_strategy_check_port()
1042 			zfcp_erp_port_block(port, 0);  in zfcp_erp_strategy_check_port()
1045 		atomic_inc(&port->erp_counter);  in zfcp_erp_strategy_check_port()
1046 		if (atomic_read(&port->erp_counter) > ZFCP_MAX_ERPS) {  in zfcp_erp_strategy_check_port()
1047 			dev_err(&port->adapter->ccw_device->dev,  in zfcp_erp_strategy_check_port()
1049 				(unsigned long long)port->wwpn);  in zfcp_erp_strategy_check_port()
1050 			zfcp_erp_set_port_status(port,  in zfcp_erp_strategy_check_port()
1056 	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED) {  in zfcp_erp_strategy_check_port()
1057 		zfcp_erp_port_block(port, 0);  in zfcp_erp_strategy_check_port()
1095 	struct zfcp_port *port = erp_action->port;  in zfcp_erp_strategy_check_target()  local
1106 		result = zfcp_erp_strategy_check_port(port, result);  in zfcp_erp_strategy_check_target()
1135 	struct zfcp_port *port = act->port;  in zfcp_erp_strategy_statechange()  local
1152 		if (zfcp_erp_strat_change_det(&port->status, erp_status)) {  in zfcp_erp_strategy_statechange()
1153 			_zfcp_erp_port_reopen(port,  in zfcp_erp_strategy_statechange()
1197 				  &erp_action->port->status);  in zfcp_erp_action_dequeue()
1210 	struct zfcp_port *port = act->port;  in zfcp_erp_action_cleanup()  local
1221 			zfcp_scsi_schedule_rport_register(port);  in zfcp_erp_action_cleanup()
1224 		put_device(&port->dev);  in zfcp_erp_action_cleanup()
1420 	struct zfcp_port *port;  in zfcp_erp_set_adapter_status()  local
1431 	list_for_each_entry(port, &adapter->port_list, list)  in zfcp_erp_set_adapter_status()
1432 		atomic_set_mask(common_mask, &port->status);  in zfcp_erp_set_adapter_status()
1450 	struct zfcp_port *port;  in zfcp_erp_clear_adapter_status()  local
1465 	list_for_each_entry(port, &adapter->port_list, list) {  in zfcp_erp_clear_adapter_status()
1466 		atomic_clear_mask(common_mask, &port->status);  in zfcp_erp_clear_adapter_status()
1468 			atomic_set(&port->erp_counter, 0);  in zfcp_erp_clear_adapter_status()
1488 void zfcp_erp_set_port_status(struct zfcp_port *port, u32 mask)  in zfcp_erp_set_port_status()  argument
1494 	atomic_set_mask(mask, &port->status);  in zfcp_erp_set_port_status()
1499 	spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_port_status()
1500 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_set_port_status()
1501 		if (sdev_to_zfcp(sdev)->port == port)  in zfcp_erp_set_port_status()
1504 	spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_set_port_status()
1514 void zfcp_erp_clear_port_status(struct zfcp_port *port, u32 mask)  in zfcp_erp_clear_port_status()  argument
1521 	atomic_clear_mask(mask, &port->status);  in zfcp_erp_clear_port_status()
1527 		atomic_set(&port->erp_counter, 0);  in zfcp_erp_clear_port_status()
1529 	spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_port_status()
1530 	__shost_for_each_device(sdev, port->adapter->scsi_host)  in zfcp_erp_clear_port_status()
1531 		if (sdev_to_zfcp(sdev)->port == port) {  in zfcp_erp_clear_port_status()
1537 	spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);  in zfcp_erp_clear_port_status()