8 files changed, 362 insertions, 275 deletions

diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index ee13a455c82..181f88bb53b 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -450,19 +450,6 @@ static void _zfcp_status_read_scheduler(struct work_struct *work)
 					     stat_work));
 }
 
-static int zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
-{
-	struct zfcp_port *port;
-
-	port = zfcp_port_enqueue(adapter, 0, ZFCP_STATUS_PORT_WKA,
-				 ZFCP_DID_DIRECTORY_SERVICE);
-	if (IS_ERR(port))
-		return PTR_ERR(port);
-	zfcp_port_put(port);
-
-	return 0;
-}
-
 /**
  * zfcp_adapter_enqueue - enqueue a new adapter to the list
  * @ccw_device: pointer to the struct cc_device
@@ -552,7 +539,7 @@ int zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 
 	zfcp_data.adapters++;
 
-	zfcp_nameserver_enqueue(adapter);
+	zfcp_fc_nameserver_init(adapter);
 
 	return 0;
 
@@ -638,7 +625,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
 {
 	struct zfcp_port *port;
 	int retval;
-	char *bus_id;
 
 	port = kzalloc(sizeof(struct zfcp_port), GFP_KERNEL);
 	if (!port)
@@ -648,6 +634,7 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
 
 	INIT_LIST_HEAD(&port->unit_list_head);
 	INIT_LIST_HEAD(&port->unit_remove_lh);
+	INIT_WORK(&port->gid_pn_work, zfcp_erp_port_strategy_open_lookup);
 
 	port->adapter = adapter;
 	port->d_id = d_id;
@@ -657,34 +644,8 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
 	atomic_set_mask(status | ZFCP_STATUS_COMMON_REMOVE, &port->status);
 	atomic_set(&port->refcount, 0);
 
-	if (status & ZFCP_STATUS_PORT_WKA) {
-		switch (d_id) {
-		case ZFCP_DID_DIRECTORY_SERVICE:
-			bus_id = "directory";
-			break;
-		case ZFCP_DID_MANAGEMENT_SERVICE:
-			bus_id = "management";
-			break;
-		case ZFCP_DID_KEY_DISTRIBUTION_SERVICE:
-			bus_id = "key_distribution";
-			break;
-		case ZFCP_DID_ALIAS_SERVICE:
-			bus_id = "alias";
-			break;
-		case ZFCP_DID_TIME_SERVICE:
-			bus_id = "time";
-			break;
-		default:
-			kfree(port);
-			return ERR_PTR(-EINVAL);
-		}
-		snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "%s", bus_id);
-		port->sysfs_device.parent = &adapter->generic_services;
-	} else {
-		snprintf(port->sysfs_device.bus_id,
-			 BUS_ID_SIZE, "0x%016llx", wwpn);
-		port->sysfs_device.parent = &adapter->ccw_device->dev;
-	}
+	snprintf(port->sysfs_device.bus_id, BUS_ID_SIZE, "0x%016llx", wwpn);
+	port->sysfs_device.parent = &adapter->ccw_device->dev;
 
 	port->sysfs_device.release = zfcp_sysfs_port_release;
 	dev_set_drvdata(&port->sysfs_device, port);
@@ -700,12 +661,8 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
 	if (device_register(&port->sysfs_device))
 		goto err_out_free;
 
-	if (status & ZFCP_STATUS_PORT_WKA)
-		retval = sysfs_create_group(&port->sysfs_device.kobj,
-					    &zfcp_sysfs_ns_port_attrs);
-	else
-		retval = sysfs_create_group(&port->sysfs_device.kobj,
-					    &zfcp_sysfs_port_attrs);
+	retval = sysfs_create_group(&port->sysfs_device.kobj,
+				    &zfcp_sysfs_port_attrs);
 
 	if (retval) {
 		device_unregister(&port->sysfs_device);
@@ -718,9 +675,6 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, wwn_t wwpn,
 	list_add_tail(&port->list, &adapter->port_list_head);
 	atomic_clear_mask(ZFCP_STATUS_COMMON_REMOVE, &port->status);
 	atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING, &port->status);
-	if (d_id == ZFCP_DID_DIRECTORY_SERVICE)
-		if (!adapter->nameserver_port)
-			adapter->nameserver_port = port;
 	adapter->ports++;
 
 	write_unlock_irq(&zfcp_data.config_lock);
@@ -749,12 +703,7 @@ void zfcp_port_dequeue(struct zfcp_port *port)
 		fc_remote_port_delete(port->rport);
 	port->rport = NULL;
 	zfcp_adapter_put(port->adapter);
-	if (atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA)
-		sysfs_remove_group(&port->sysfs_device.kobj,
-				   &zfcp_sysfs_ns_port_attrs);
-	else
-		sysfs_remove_group(&port->sysfs_device.kobj,
-				   &zfcp_sysfs_port_attrs);
+	sysfs_remove_group(&port->sysfs_device.kobj, &zfcp_sysfs_port_attrs);
 	device_unregister(&port->sysfs_device);
 }
 
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index d088d30516f..c1f69f611e6 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -519,7 +519,7 @@ static const char *zfcp_rec_dbf_ids[] = {
 	[75]	= "physical port recovery escalation after failed port "
 		  "recovery",
 	[76]	= "port recovery escalation after failed unit recovery",
-	[77]	= "recovery opening nameserver port",
+	[77]	= "",
 	[78]	= "duplicate request id",
 	[79]	= "link down",
 	[80]	= "exclusive read-only unit access unsupported",
@@ -829,8 +829,8 @@ void zfcp_rec_dbf_event_action(u8 id2, struct zfcp_erp_action *erp_action)
 void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
 {
 	struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
-	struct zfcp_port *port = ct->port;
-	struct zfcp_adapter *adapter = port->adapter;
+	struct zfcp_wka_port *wka_port = ct->wka_port;
+	struct zfcp_adapter *adapter = wka_port->adapter;
 	struct ct_hdr *hdr = sg_virt(ct->req);
 	struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
 	struct zfcp_san_dbf_record_ct_request *oct = &r->u.ct_req;
@@ -842,7 +842,7 @@ void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
 	r->fsf_reqid = (unsigned long)fsf_req;
 	r->fsf_seqno = fsf_req->seq_no;
 	r->s_id = fc_host_port_id(adapter->scsi_host);
-	r->d_id = port->d_id;
+	r->d_id = wka_port->d_id;
 	oct->cmd_req_code = hdr->cmd_rsp_code;
 	oct->revision = hdr->revision;
 	oct->gs_type = hdr->gs_type;
@@ -863,8 +863,8 @@ void zfcp_san_dbf_event_ct_request(struct zfcp_fsf_req *fsf_req)
 void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
 {
 	struct zfcp_send_ct *ct = (struct zfcp_send_ct *)fsf_req->data;
-	struct zfcp_port *port = ct->port;
-	struct zfcp_adapter *adapter = port->adapter;
+	struct zfcp_wka_port *wka_port = ct->wka_port;
+	struct zfcp_adapter *adapter = wka_port->adapter;
 	struct ct_hdr *hdr = sg_virt(ct->resp);
 	struct zfcp_san_dbf_record *r = &adapter->san_dbf_buf;
 	struct zfcp_san_dbf_record_ct_response *rct = &r->u.ct_resp;
@@ -875,7 +875,7 @@ void zfcp_san_dbf_event_ct_response(struct zfcp_fsf_req *fsf_req)
 	strncpy(r->tag, "rctc", ZFCP_DBF_TAG_SIZE);
 	r->fsf_reqid = (unsigned long)fsf_req;
 	r->fsf_seqno = fsf_req->seq_no;
-	r->s_id = port->d_id;
+	r->s_id = wka_port->d_id;
 	r->d_id = fc_host_port_id(adapter->scsi_host);
 	rct->cmd_rsp_code = hdr->cmd_rsp_code;
 	rct->revision = hdr->revision;
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 699ecaf2e50..0d6a388882d 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -253,6 +253,7 @@ struct zfcp_ls_adisc {
 #define ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED	0x00000200
 
 /* FC-PH/FC-GS well-known address identifiers for generic services */
+#define ZFCP_DID_WKA				0xFFFFF0
 #define ZFCP_DID_MANAGEMENT_SERVICE		0xFFFFFA
 #define ZFCP_DID_TIME_SERVICE			0xFFFFFB
 #define ZFCP_DID_DIRECTORY_SERVICE		0xFFFFFC
@@ -264,13 +265,15 @@ struct zfcp_ls_adisc {
 #define ZFCP_STATUS_PORT_DID_DID		0x00000002
 #define ZFCP_STATUS_PORT_PHYS_CLOSING		0x00000004
 #define ZFCP_STATUS_PORT_NO_WWPN		0x00000008
-#define ZFCP_STATUS_PORT_NO_SCSI_ID		0x00000010
 #define ZFCP_STATUS_PORT_INVALID_WWPN		0x00000020
 
-/* for ports with well known addresses */
-#define ZFCP_STATUS_PORT_WKA \
-		(ZFCP_STATUS_PORT_NO_WWPN | \
-		 ZFCP_STATUS_PORT_NO_SCSI_ID)
+/* well known address (WKA) port status*/
+enum zfcp_wka_status {
+	ZFCP_WKA_PORT_OFFLINE,
+	ZFCP_WKA_PORT_CLOSING,
+	ZFCP_WKA_PORT_OPENING,
+	ZFCP_WKA_PORT_ONLINE,
+};
 
 /* logical unit status */
 #define ZFCP_STATUS_UNIT_SHARED			0x00000004
@@ -340,7 +343,7 @@ typedef void (*zfcp_send_ct_handler_t)(unsigned long);
 
 /**
  * struct zfcp_send_ct - used to pass parameters to function zfcp_fsf_send_ct
- * @port: port where the request is sent to
+ * @wka_port: port where the request is sent to
  * @req: scatter-gather list for request
  * @resp: scatter-gather list for response
  * @req_count: number of elements in request scatter-gather list
@@ -352,7 +355,7 @@ typedef void (*zfcp_send_ct_handler_t)(unsigned long);
  * @status: used to pass error status to calling function
  */
 struct zfcp_send_ct {
-	struct zfcp_port *port;
+	struct zfcp_wka_port *wka_port;
 	struct scatterlist *req;
 	struct scatterlist *resp;
 	unsigned int req_count;
@@ -406,6 +409,17 @@ struct zfcp_send_els {
 	int status;
 };
 
+struct zfcp_wka_port {
+	struct zfcp_adapter	*adapter;
+	wait_queue_head_t	completion_wq;
+	enum zfcp_wka_status	status;
+	atomic_t		refcount;
+	u32			d_id;
+	u32			handle;
+	struct mutex		mutex;
+	struct delayed_work	work;
+};
+
 struct zfcp_qdio_queue {
 	struct qdio_buffer *sbal[QDIO_MAX_BUFFERS_PER_Q]; /* SBALs */
 	u8		   first;	      /* index of next free bfr
@@ -496,7 +510,7 @@ struct zfcp_adapter {
 						      actions */
 	u32			erp_low_mem_count; /* nr of erp actions waiting
 						      for memory */
-	struct zfcp_port	*nameserver_port;  /* adapter's nameserver */
+	struct zfcp_wka_port	nsp;		   /* adapter's nameserver */
 	debug_info_t		*rec_dbf;
 	debug_info_t		*hba_dbf;
 	debug_info_t		*san_dbf;          /* debug feature areas */
@@ -540,6 +554,7 @@ struct zfcp_port {
         atomic_t               erp_counter;
 	u32                    maxframe_size;
 	u32                    supported_classes;
+	struct work_struct     gid_pn_work;
 };
 
 struct zfcp_unit {
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index b18c6dd3729..e7d3bce5142 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -23,7 +23,6 @@ enum zfcp_erp_steps {
 	ZFCP_ERP_STEP_FSF_XCONFIG	= 0x0001,
 	ZFCP_ERP_STEP_PHYS_PORT_CLOSING	= 0x0010,
 	ZFCP_ERP_STEP_PORT_CLOSING	= 0x0100,
-	ZFCP_ERP_STEP_NAMESERVER_OPEN	= 0x0200,
 	ZFCP_ERP_STEP_NAMESERVER_LOOKUP	= 0x0400,
 	ZFCP_ERP_STEP_PORT_OPENING	= 0x0800,
 	ZFCP_ERP_STEP_UNIT_CLOSING	= 0x1000,
@@ -532,8 +531,7 @@ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
 	struct zfcp_port *port;
 
 	list_for_each_entry(port, &adapter->port_list_head, list)
-		if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA))
-			_zfcp_erp_port_reopen(port, clear, id, ref);
+		_zfcp_erp_port_reopen(port, clear, id, ref);
 }
 
 static void _zfcp_erp_unit_reopen_all(struct zfcp_port *port, int clear, u8 id,
@@ -777,7 +775,6 @@ static int zfcp_erp_port_forced_strategy_close(struct zfcp_erp_action *act)
 static void zfcp_erp_port_strategy_clearstati(struct zfcp_port *port)
 {
 	atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
-			  ZFCP_STATUS_PORT_DID_DID |
 			  ZFCP_STATUS_PORT_PHYS_CLOSING |
 			  ZFCP_STATUS_PORT_INVALID_WWPN,
 			  &port->status);
@@ -830,62 +827,6 @@ static int zfcp_erp_port_strategy_open_port(struct zfcp_erp_action *erp_action)
 	return ZFCP_ERP_CONTINUES;
 }
 
-static void zfcp_erp_port_strategy_open_ns_wake(struct zfcp_erp_action *ns_act)
-{
-	unsigned long flags;
-	struct zfcp_adapter *adapter = ns_act->adapter;
-	struct zfcp_erp_action *act, *tmp;
-	int status;
-
-	read_lock_irqsave(&adapter->erp_lock, flags);
-	list_for_each_entry_safe(act, tmp, &adapter->erp_running_head, list) {
-		if (act->step == ZFCP_ERP_STEP_NAMESERVER_OPEN) {
-			status = atomic_read(&adapter->nameserver_port->status);
-			if (status & ZFCP_STATUS_COMMON_ERP_FAILED)
-				zfcp_erp_port_failed(act->port, 27, NULL);
-			zfcp_erp_action_ready(act);
-		}
-	}
-	read_unlock_irqrestore(&adapter->erp_lock, flags);
-}
-
-static int zfcp_erp_port_strategy_open_nameserver(struct zfcp_erp_action *act)
-{
-	int retval;
-
-	switch (act->step) {
-	case ZFCP_ERP_STEP_UNINITIALIZED:
-	case ZFCP_ERP_STEP_PHYS_PORT_CLOSING:
-	case ZFCP_ERP_STEP_PORT_CLOSING:
-		return zfcp_erp_port_strategy_open_port(act);
-
-	case ZFCP_ERP_STEP_PORT_OPENING:
-		if (atomic_read(&act->port->status) & ZFCP_STATUS_COMMON_OPEN)
-			retval = ZFCP_ERP_SUCCEEDED;
-		else
-			retval = ZFCP_ERP_FAILED;
-		/* this is needed anyway  */
-		zfcp_erp_port_strategy_open_ns_wake(act);
-		return retval;
-
-	default:
-		return ZFCP_ERP_FAILED;
-	}
-}
-
-static int zfcp_erp_port_strategy_open_lookup(struct zfcp_erp_action *act)
-{
-	int retval;
-
-	retval = zfcp_fc_ns_gid_pn_request(act);
-	if (retval == -ENOMEM)
-		return ZFCP_ERP_NOMEM;
-	act->step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
-	if (retval)
-		return ZFCP_ERP_FAILED;
-	return ZFCP_ERP_CONTINUES;
-}
-
 static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act)
 {
 	struct zfcp_adapter *adapter = act->adapter;
@@ -900,11 +841,25 @@ static int zfcp_erp_open_ptp_port(struct zfcp_erp_action *act)
 	return zfcp_erp_port_strategy_open_port(act);
 }
 
+void zfcp_erp_port_strategy_open_lookup(struct work_struct *work)
+{
+	int retval;
+	struct zfcp_port *port = container_of(work, struct zfcp_port,
+					      gid_pn_work);
+
+	retval = zfcp_fc_ns_gid_pn(&port->erp_action);
+	if (retval == -ENOMEM)
+		zfcp_erp_notify(&port->erp_action, ZFCP_ERP_NOMEM);
+	port->erp_action.step = ZFCP_ERP_STEP_NAMESERVER_LOOKUP;
+	if (retval)
+		zfcp_erp_notify(&port->erp_action, ZFCP_ERP_FAILED);
+
+}
+
 static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
 {
 	struct zfcp_adapter *adapter = act->adapter;
 	struct zfcp_port *port = act->port;
-	struct zfcp_port *ns_port = adapter->nameserver_port;
 	int p_status = atomic_read(&port->status);
 
 	switch (act->step) {
@@ -913,29 +868,10 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
 	case ZFCP_ERP_STEP_PORT_CLOSING:
 		if (fc_host_port_type(adapter->scsi_host) == FC_PORTTYPE_PTP)
 			return zfcp_erp_open_ptp_port(act);
-		if (!ns_port) {
-			dev_err(&adapter->ccw_device->dev,
-				"Attaching the name server port to the "
-				"FCP device failed\n");
-			return ZFCP_ERP_FAILED;
-		}
-		if (!(atomic_read(&ns_port->status) &
-		      ZFCP_STATUS_COMMON_UNBLOCKED)) {
-			/* nameserver port may live again */
-			atomic_set_mask(ZFCP_STATUS_COMMON_RUNNING,
-					&ns_port->status);
-			if (zfcp_erp_port_reopen(ns_port, 0, 77, act) >= 0) {
-				act->step = ZFCP_ERP_STEP_NAMESERVER_OPEN;
-				return ZFCP_ERP_CONTINUES;
-			}
-			return ZFCP_ERP_FAILED;
+		if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
+			schedule_work(&port->gid_pn_work);
+			return ZFCP_ERP_CONTINUES;
 		}
-		/* else nameserver port is already open, fall through */
-	case ZFCP_ERP_STEP_NAMESERVER_OPEN:
-		if (!(atomic_read(&ns_port->status) & ZFCP_STATUS_COMMON_OPEN))
-			return ZFCP_ERP_FAILED;
-		return zfcp_erp_port_strategy_open_lookup(act);
-
 	case ZFCP_ERP_STEP_NAMESERVER_LOOKUP:
 		if (!(p_status & ZFCP_STATUS_PORT_DID_DID)) {
 			if (p_status & (ZFCP_STATUS_PORT_INVALID_WWPN)) {
@@ -948,25 +884,26 @@ static int zfcp_erp_port_strategy_open_common(struct zfcp_erp_action *act)
 
 	case ZFCP_ERP_STEP_PORT_OPENING:
 		/* D_ID might have changed during open */
-		if ((p_status & ZFCP_STATUS_COMMON_OPEN) &&
-		    (p_status & ZFCP_STATUS_PORT_DID_DID))
-			return ZFCP_ERP_SUCCEEDED;
+		if (p_status & ZFCP_STATUS_COMMON_OPEN) {
+			if (p_status & ZFCP_STATUS_PORT_DID_DID)
+				return ZFCP_ERP_SUCCEEDED;
+			else {
+				act->step = ZFCP_ERP_STEP_PORT_CLOSING;
+				return ZFCP_ERP_CONTINUES;
+			}
 		/* fall through otherwise */
+		}
 	}
 	return ZFCP_ERP_FAILED;
 }
 
-static int zfcp_erp_port_strategy_open(struct zfcp_erp_action *act)
-{
-	if (atomic_read(&act->port->status) & (ZFCP_STATUS_PORT_WKA))
-		return zfcp_erp_port_strategy_open_nameserver(act);
-	return zfcp_erp_port_strategy_open_common(act);
-}
-
 static int zfcp_erp_port_strategy(struct zfcp_erp_action *erp_action)
 {
 	struct zfcp_port *port = erp_action->port;
 
+	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_NOESC)
+		goto close_init_done;
+
 	switch (erp_action->step) {
 	case ZFCP_ERP_STEP_UNINITIALIZED:
 		zfcp_erp_port_strategy_clearstati(port);
@@ -979,12 +916,12 @@ static int zfcp_erp_port_strategy(struct zfcp_erp_action *erp_action)
 			return ZFCP_ERP_FAILED;
 		break;
 	}
+
+close_init_done:
 	if (erp_action->status & ZFCP_STATUS_ERP_CLOSE_ONLY)
 		return ZFCP_ERP_EXIT;
-	else
-		return zfcp_erp_port_strategy_open(erp_action);
 
-	return ZFCP_ERP_FAILED;
+	return zfcp_erp_port_strategy_open_common(erp_action);
 }
 
 static void zfcp_erp_unit_strategy_clearstati(struct zfcp_unit *unit)
@@ -1296,12 +1233,10 @@ static void zfcp_erp_rport_register(struct zfcp_port *port)
 static void zfcp_erp_rports_del(struct zfcp_adapter *adapter)
 {
 	struct zfcp_port *port;
-	list_for_each_entry(port, &adapter->port_list_head, list)
-		if (port->rport && !(atomic_read(&port->status) &
-					ZFCP_STATUS_PORT_WKA)) {
-			fc_remote_port_delete(port->rport);
-			port->rport = NULL;
-		}
+	list_for_each_entry(port, &adapter->port_list_head, list) {
+		fc_remote_port_delete(port->rport);
+		port->rport = NULL;
+	}
 }
 
 static void zfcp_erp_action_cleanup(struct zfcp_erp_action *act, int result)
@@ -1737,9 +1672,8 @@ static void zfcp_erp_port_access_changed(struct zfcp_port *port, u8 id,
 
 	if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
 			ZFCP_STATUS_COMMON_ACCESS_BOXED))) {
-		if (!(status & ZFCP_STATUS_PORT_WKA))
-			list_for_each_entry(unit, &port->unit_list_head, list)
-				zfcp_erp_unit_access_changed(unit, id, ref);
+		list_for_each_entry(unit, &port->unit_list_head, list)
+				    zfcp_erp_unit_access_changed(unit, id, ref);
 		return;
 	}
 
@@ -1762,10 +1696,7 @@ void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, u8 id,
 		return;
 
 	read_lock_irqsave(&zfcp_data.config_lock, flags);
-	if (adapter->nameserver_port)
-		zfcp_erp_port_access_changed(adapter->nameserver_port, id, ref);
 	list_for_each_entry(port, &adapter->port_list_head, list)
-		if (port != adapter->nameserver_port)
-			zfcp_erp_port_access_changed(port, id, ref);
+		zfcp_erp_port_access_changed(port, id, ref);
 	read_unlock_irqrestore(&zfcp_data.config_lock, flags);
 }
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index a8dd105dc08..5c8a703b5ce 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -91,17 +91,21 @@ extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8, void *);
 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8, void *);
 extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, void *);
 extern void zfcp_erp_timeout_handler(unsigned long);
+extern void zfcp_erp_port_strategy_open_lookup(struct work_struct *);
 
 /* zfcp_fc.c */
 extern int zfcp_scan_ports(struct zfcp_adapter *);
 extern void _zfcp_scan_ports_later(struct work_struct *);
 extern void zfcp_fc_incoming_els(struct zfcp_fsf_req *);
-extern int zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *);
+extern int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *);
 extern void zfcp_fc_plogi_evaluate(struct zfcp_port *, struct fsf_plogi *);
 extern void zfcp_test_link(struct zfcp_port *);
+extern void zfcp_fc_nameserver_init(struct zfcp_adapter *);
 
 /* zfcp_fsf.c */
 extern int zfcp_fsf_open_port(struct zfcp_erp_action *);
+extern int zfcp_fsf_open_wka_port(struct zfcp_wka_port *);
+extern int zfcp_fsf_close_wka_port(struct zfcp_wka_port *);
 extern int zfcp_fsf_close_port(struct zfcp_erp_action *);
 extern int zfcp_fsf_close_physical_port(struct zfcp_erp_action *);
 extern int zfcp_fsf_open_unit(struct zfcp_erp_action *);
@@ -153,7 +157,6 @@ extern struct fc_function_template zfcp_transport_functions;
 /* zfcp_sysfs.c */
 extern struct attribute_group zfcp_sysfs_unit_attrs;
 extern struct attribute_group zfcp_sysfs_adapter_attrs;
-extern struct attribute_group zfcp_sysfs_ns_port_attrs;
 extern struct attribute_group zfcp_sysfs_port_attrs;
 extern struct device_attribute *zfcp_sysfs_sdev_attrs[];
 extern struct device_attribute *zfcp_sysfs_shost_attrs[];
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 44456f74a12..899e45b9e60 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -39,6 +39,84 @@ struct zfcp_gpn_ft {
 	struct scatterlist sg_resp[ZFCP_GPN_FT_BUFFERS];
 };
 
+struct zfcp_fc_ns_handler_data {
+	struct completion done;
+	void (*handler)(unsigned long);
+	unsigned long handler_data;
+};
+
+static int zfcp_wka_port_get(struct zfcp_wka_port *wka_port)
+{
+	if (mutex_lock_interruptible(&wka_port->mutex))
+		return -ERESTARTSYS;
+
+	if (wka_port->status != ZFCP_WKA_PORT_ONLINE) {
+		wka_port->status = ZFCP_WKA_PORT_OPENING;
+		if (zfcp_fsf_open_wka_port(wka_port))
+			wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+	}
+
+	mutex_unlock(&wka_port->mutex);
+
+	wait_event_timeout(
+		wka_port->completion_wq,
+		wka_port->status == ZFCP_WKA_PORT_ONLINE ||
+		wka_port->status == ZFCP_WKA_PORT_OFFLINE,
+		HZ >> 1);
+
+	if (wka_port->status == ZFCP_WKA_PORT_ONLINE) {
+		atomic_inc(&wka_port->refcount);
+		return 0;
+	}
+	return -EIO;
+}
+
+static void zfcp_wka_port_offline(struct work_struct *work)
+{
+	struct delayed_work *dw = container_of(work, struct delayed_work, work);
+	struct zfcp_wka_port *wka_port =
+			container_of(dw, struct zfcp_wka_port, work);
+
+	wait_event(wka_port->completion_wq,
+			atomic_read(&wka_port->refcount) == 0);
+
+	mutex_lock(&wka_port->mutex);
+	if ((atomic_read(&wka_port->refcount) != 0) ||
+	    (wka_port->status != ZFCP_WKA_PORT_ONLINE))
+		goto out;
+
+	wka_port->status = ZFCP_WKA_PORT_CLOSING;
+	if (zfcp_fsf_close_wka_port(wka_port)) {
+		wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+		wake_up(&wka_port->completion_wq);
+	}
+out:
+	mutex_unlock(&wka_port->mutex);
+}
+
+static void zfcp_wka_port_put(struct zfcp_wka_port *wka_port)
+{
+	if (atomic_dec_return(&wka_port->refcount) != 0)
+		return;
+	/* wait 10 miliseconds, other reqs might pop in */
+	schedule_delayed_work(&wka_port->work, HZ / 100);
+}
+
+void zfcp_fc_nameserver_init(struct zfcp_adapter *adapter)
+{
+	struct zfcp_wka_port *wka_port = &adapter->nsp;
+
+	init_waitqueue_head(&wka_port->completion_wq);
+
+	wka_port->adapter = adapter;
+	wka_port->d_id = ZFCP_DID_DIRECTORY_SERVICE;
+
+	wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+	atomic_set(&wka_port->refcount, 0);
+	mutex_init(&wka_port->mutex);
+	INIT_DELAYED_WORK(&wka_port->work, zfcp_wka_port_offline);
+}
+
 static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
 				   struct fcp_rscn_element *elem)
 {
@@ -47,9 +125,6 @@ static void _zfcp_fc_incoming_rscn(struct zfcp_fsf_req *fsf_req, u32 range,
 
 	read_lock_irqsave(&zfcp_data.config_lock, flags);
 	list_for_each_entry(port, &fsf_req->adapter->port_list_head, list) {
-		if ((atomic_read(&port->status) & ZFCP_STATUS_PORT_WKA) ==
-		      ZFCP_STATUS_PORT_WKA)
-			continue;
 		/* FIXME: ZFCP_STATUS_PORT_DID_DID check is racy */
 		if (!(atomic_read(&port->status) & ZFCP_STATUS_PORT_DID_DID))
 			/* Try to connect to unused ports anyway. */
@@ -158,7 +233,18 @@ void zfcp_fc_incoming_els(struct zfcp_fsf_req *fsf_req)
 		zfcp_fc_incoming_rscn(fsf_req);
 }
 
-static void zfcp_ns_gid_pn_handler(unsigned long data)
+static void zfcp_fc_ns_handler(unsigned long data)
+{
+	struct zfcp_fc_ns_handler_data *compl_rec =
+			(struct zfcp_fc_ns_handler_data *) data;
+
+	if (compl_rec->handler)
+		compl_rec->handler(compl_rec->handler_data);
+
+	complete(&compl_rec->done);
+}
+
+static void zfcp_fc_ns_gid_pn_eval(unsigned long data)
 {
 	struct zfcp_gid_pn_data *gid_pn = (struct zfcp_gid_pn_data *) data;
 	struct zfcp_send_ct *ct = &gid_pn->ct;
@@ -167,43 +253,31 @@ static void zfcp_ns_gid_pn_handler(unsigned long data)
 	struct zfcp_port *port = gid_pn->port;
 
 	if (ct->status)
-		goto out;
+		return;
 	if (ct_iu_resp->header.cmd_rsp_code != ZFCP_CT_ACCEPT) {
 		atomic_set_mask(ZFCP_STATUS_PORT_INVALID_WWPN, &port->status);
-		goto out;
+		return;
 	}
 	/* paranoia */
 	if (ct_iu_req->wwpn != port->wwpn)
-		goto out;
+		return;
 	/* looks like a valid d_id */
 	port->d_id = ct_iu_resp->d_id & ZFCP_DID_MASK;
 	atomic_set_mask(ZFCP_STATUS_PORT_DID_DID, &port->status);
-out:
-	mempool_free(gid_pn, port->adapter->pool.data_gid_pn);
 }
 
-/**
- * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
- * @erp_action: pointer to zfcp_erp_action where GID_PN request is needed
- * return: -ENOMEM on error, 0 otherwise
- */
-int zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action)
+int static zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action,
+				     struct zfcp_gid_pn_data *gid_pn)
 {
-	int ret;
-	struct zfcp_gid_pn_data *gid_pn;
 	struct zfcp_adapter *adapter = erp_action->adapter;
-
-	gid_pn = mempool_alloc(adapter->pool.data_gid_pn, GFP_ATOMIC);
-	if (!gid_pn)
-		return -ENOMEM;
-
-	memset(gid_pn, 0, sizeof(*gid_pn));
+	struct zfcp_fc_ns_handler_data compl_rec;
+	int ret;
 
 	/* setup parameters for send generic command */
 	gid_pn->port = erp_action->port;
-	gid_pn->ct.port = adapter->nameserver_port;
-	gid_pn->ct.handler = zfcp_ns_gid_pn_handler;
-	gid_pn->ct.handler_data = (unsigned long) gid_pn;
+	gid_pn->ct.wka_port = &adapter->nsp;
+	gid_pn->ct.handler = zfcp_fc_ns_handler;
+	gid_pn->ct.handler_data = (unsigned long) &compl_rec;
 	gid_pn->ct.timeout = ZFCP_NS_GID_PN_TIMEOUT;
 	gid_pn->ct.req = &gid_pn->req;
 	gid_pn->ct.resp = &gid_pn->resp;
@@ -223,10 +297,42 @@ int zfcp_fc_ns_gid_pn_request(struct zfcp_erp_action *erp_action)
 	gid_pn->ct_iu_req.header.max_res_size = ZFCP_CT_MAX_SIZE;
 	gid_pn->ct_iu_req.wwpn = erp_action->port->wwpn;
 
+	init_completion(&compl_rec.done);
+	compl_rec.handler = zfcp_fc_ns_gid_pn_eval;
+	compl_rec.handler_data = (unsigned long) gid_pn;
 	ret = zfcp_fsf_send_ct(&gid_pn->ct, adapter->pool.fsf_req_erp,
 			       erp_action);
+	if (!ret)
+		wait_for_completion(&compl_rec.done);
+	return ret;
+}
+
+/**
+ * zfcp_fc_ns_gid_pn_request - initiate GID_PN nameserver request
+ * @erp_action: pointer to zfcp_erp_action where GID_PN request is needed
+ * return: -ENOMEM on error, 0 otherwise
+ */
+int zfcp_fc_ns_gid_pn(struct zfcp_erp_action *erp_action)
+{
+	int ret;
+	struct zfcp_gid_pn_data *gid_pn;
+	struct zfcp_adapter *adapter = erp_action->adapter;
+
+	gid_pn = mempool_alloc(adapter->pool.data_gid_pn, GFP_ATOMIC);
+	if (!gid_pn)
+		return -ENOMEM;
+
+	memset(gid_pn, 0, sizeof(*gid_pn));
+
+	ret = zfcp_wka_port_get(&adapter->nsp);
 	if (ret)
-		mempool_free(gid_pn, adapter->pool.data_gid_pn);
+		goto out;
+
+	ret = zfcp_fc_ns_gid_pn_request(erp_action, gid_pn);
+
+	zfcp_wka_port_put(&adapter->nsp);
+out:
+	mempool_free(gid_pn, adapter->pool.data_gid_pn);
 	return ret;
 }
 
@@ -339,30 +445,6 @@ void zfcp_test_link(struct zfcp_port *port)
 		zfcp_erp_port_forced_reopen(port, 0, 65, NULL);
 }
 
-static int zfcp_scan_get_nameserver(struct zfcp_adapter *adapter)
-{
-	int ret;
-
-	if (!adapter->nameserver_port)
-		return -EINTR;
-
-	if (!(atomic_read(&adapter->nameserver_port->status) &
-	      ZFCP_STATUS_COMMON_UNBLOCKED)) {
-		ret = zfcp_erp_port_reopen(adapter->nameserver_port, 0, 148,
-					   NULL);
-		if (ret)
-			return ret;
-		zfcp_erp_wait(adapter);
-	}
-	return !(atomic_read(&adapter->nameserver_port->status) &
-		 ZFCP_STATUS_COMMON_UNBLOCKED);
-}
-
-static void zfcp_gpn_ft_handler(unsigned long _done)
-{
-	complete((struct completion *)_done);
-}
-
 static void zfcp_free_sg_env(struct zfcp_gpn_ft *gpn_ft)
 {
 	struct scatterlist *sg = &gpn_ft->sg_req;
@@ -404,7 +486,7 @@ static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft,
 {
 	struct zfcp_send_ct *ct = &gpn_ft->ct;
 	struct ct_iu_gpn_ft_req *req = sg_virt(&gpn_ft->sg_req);
-	struct completion done;
+	struct zfcp_fc_ns_handler_data compl_rec;
 	int ret;
 
 	/* prepare CT IU for GPN_FT */
@@ -421,19 +503,20 @@ static int zfcp_scan_issue_gpn_ft(struct zfcp_gpn_ft *gpn_ft,
 	req->fc4_type = ZFCP_CT_SCSI_FCP;
 
 	/* prepare zfcp_send_ct */
-	ct->port = adapter->nameserver_port;
-	ct->handler = zfcp_gpn_ft_handler;
-	ct->handler_data = (unsigned long)&done;
+	ct->wka_port = &adapter->nsp;
+	ct->handler = zfcp_fc_ns_handler;
+	ct->handler_data = (unsigned long)&compl_rec;
 	ct->timeout = 10;
 	ct->req = &gpn_ft->sg_req;
 	ct->resp = gpn_ft->sg_resp;
 	ct->req_count = 1;
 	ct->resp_count = ZFCP_GPN_FT_BUFFERS;
 
-	init_completion(&done);
+	init_completion(&compl_rec.done);
+	compl_rec.handler = NULL;
 	ret = zfcp_fsf_send_ct(ct, NULL, NULL);
 	if (!ret)
-		wait_for_completion(&done);
+		wait_for_completion(&compl_rec.done);
 	return ret;
 }
 
@@ -443,8 +526,6 @@ static void zfcp_validate_port(struct zfcp_port *port)
 
 	atomic_clear_mask(ZFCP_STATUS_COMMON_NOESC, &port->status);
 
-	if (port == adapter->nameserver_port)
-		return;
 	if ((port->supported_classes != 0) || (port->units != 0)) {
 		zfcp_port_put(port);
 		return;
@@ -461,7 +542,7 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft)
 	struct scatterlist *sg = gpn_ft->sg_resp;
 	struct ct_hdr *hdr = sg_virt(sg);
 	struct gpn_ft_resp_acc *acc = sg_virt(sg);
-	struct zfcp_adapter *adapter = ct->port->adapter;
+	struct zfcp_adapter *adapter = ct->wka_port->adapter;
 	struct zfcp_port *port, *tmp;
 	u32 d_id;
 	int ret = 0, x, last = 0;
@@ -491,6 +572,9 @@ static int zfcp_scan_eval_gpn_ft(struct zfcp_gpn_ft *gpn_ft)
 		d_id = acc->port_id[0] << 16 | acc->port_id[1] << 8 |
 		       acc->port_id[2];
 
+		/* don't attach ports with a well known address */
+		if ((d_id & ZFCP_DID_WKA) == ZFCP_DID_WKA)
+			continue;
 		/* skip the adapter's port and known remote ports */
 		if (acc->wwpn == fc_host_port_name(adapter->scsi_host))
 			continue;
@@ -529,13 +613,15 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter)
 	if (fc_host_port_type(adapter->scsi_host) != FC_PORTTYPE_NPORT)
 		return 0;
 
-	ret = zfcp_scan_get_nameserver(adapter);
+	ret = zfcp_wka_port_get(&adapter->nsp);
 	if (ret)
 		return ret;
 
 	gpn_ft = zfcp_alloc_sg_env();
-	if (!gpn_ft)
-		return -ENOMEM;
+	if (!gpn_ft) {
+		ret = -ENOMEM;
+		goto out;
+	}
 
 	for (i = 0; i < 3; i++) {
 		ret = zfcp_scan_issue_gpn_ft(gpn_ft, adapter);
@@ -548,7 +634,8 @@ int zfcp_scan_ports(struct zfcp_adapter *adapter)
 		}
 	}
 	zfcp_free_sg_env(gpn_ft);
-
+out:
+	zfcp_wka_port_put(&adapter->nsp);
 	return ret;
 }
 
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index af75fd2ef1e..23dd9088153 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -961,7 +961,6 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
 {
 	struct zfcp_adapter *adapter = req->adapter;
 	struct zfcp_send_ct *send_ct = req->data;
-	struct zfcp_port *port = send_ct->port;
 	struct fsf_qtcb_header *header = &req->qtcb->header;
 
 	send_ct->status = -EINVAL;
@@ -980,17 +979,14 @@ static void zfcp_fsf_send_ct_handler(struct zfcp_fsf_req *req)
         case FSF_ADAPTER_STATUS_AVAILABLE:
                 switch (header->fsf_status_qual.word[0]){
                 case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
-			zfcp_test_link(port);
                 case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 			break;
                 }
                 break;
 	case FSF_ACCESS_DENIED:
-		zfcp_fsf_access_denied_port(req, port);
 		break;
         case FSF_PORT_BOXED:
-		zfcp_erp_port_boxed(port, 49, req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR |
 			       ZFCP_STATUS_FSFREQ_RETRY;
 		break;
@@ -1041,8 +1037,8 @@ static int zfcp_fsf_setup_sbals(struct zfcp_fsf_req *req,
 int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
 		     struct zfcp_erp_action *erp_action)
 {
-	struct zfcp_port *port = ct->port;
-	struct zfcp_adapter *adapter = port->adapter;
+	struct zfcp_wka_port *wka_port = ct->wka_port;
+	struct zfcp_adapter *adapter = wka_port->adapter;
 	struct zfcp_fsf_req *req;
 	int ret = -EIO;
 
@@ -1063,7 +1059,7 @@ int zfcp_fsf_send_ct(struct zfcp_send_ct *ct, mempool_t *pool,
 		goto failed_send;
 
 	req->handler = zfcp_fsf_send_ct_handler;
-	req->qtcb->header.port_handle = port->handle;
+	req->qtcb->header.port_handle = wka_port->handle;
 	req->qtcb->bottom.support.service_class = FSF_CLASS_3;
 	req->qtcb->bottom.support.timeout = ct->timeout;
 	req->data = ct;
@@ -1435,9 +1431,6 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
 		 * another GID_PN straight after a port has been opened.
 		 * Alternately, an ADISC/PDISC ELS should suffice, as well.
 		 */
-		if (atomic_read(&port->status) & ZFCP_STATUS_PORT_NO_WWPN)
-			break;
-
 		plogi = (struct fsf_plogi *) req->qtcb->bottom.support.els;
 		if (req->qtcb->bottom.support.els1_length >= sizeof(*plogi)) {
 			if (plogi->serv_param.wwpn != port->wwpn)
@@ -1568,6 +1561,130 @@ out:
 	return retval;
 }
 
+static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
+{
+	struct zfcp_wka_port *wka_port = req->data;
+	struct fsf_qtcb_header *header = &req->qtcb->header;
+
+	if (req->status & ZFCP_STATUS_FSFREQ_ERROR) {
+		wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+		goto out;
+	}
+
+	switch (header->fsf_status) {
+	case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
+		dev_warn(&req->adapter->ccw_device->dev,
+			 "Opening WKA port 0x%x failed\n", wka_port->d_id);
+	case FSF_ADAPTER_STATUS_AVAILABLE:
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+	case FSF_ACCESS_DENIED:
+		wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+		break;
+	case FSF_PORT_ALREADY_OPEN:
+	case FSF_GOOD:
+		wka_port->handle = header->port_handle;
+		wka_port->status = ZFCP_WKA_PORT_ONLINE;
+	}
+out:
+	wake_up(&wka_port->completion_wq);
+}
+
+/**
+ * zfcp_fsf_open_wka_port - create and send open wka-port request
+ * @wka_port: pointer to struct zfcp_wka_port
+ * Returns: 0 on success, error otherwise
+ */
+int zfcp_fsf_open_wka_port(struct zfcp_wka_port *wka_port)
+{
+	struct qdio_buffer_element *sbale;
+	struct zfcp_adapter *adapter = wka_port->adapter;
+	struct zfcp_fsf_req *req;
+	int retval = -EIO;
+
+	spin_lock_bh(&adapter->req_q.lock);
+	if (zfcp_fsf_req_sbal_get(adapter))
+		goto out;
+
+	req = zfcp_fsf_req_create(adapter,
+				  FSF_QTCB_OPEN_PORT_WITH_DID,
+				  ZFCP_REQ_AUTO_CLEANUP,
+				  adapter->pool.fsf_req_erp);
+	if (unlikely(IS_ERR(req))) {
+		retval = PTR_ERR(req);
+		goto out;
+	}
+
+	sbale = zfcp_qdio_sbale_req(req);
+	sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
+	sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
+
+	req->handler = zfcp_fsf_open_wka_port_handler;
+	req->qtcb->bottom.support.d_id = wka_port->d_id;
+	req->data = wka_port;
+
+	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
+	retval = zfcp_fsf_req_send(req);
+	if (retval)
+		zfcp_fsf_req_free(req);
+out:
+	spin_unlock_bh(&adapter->req_q.lock);
+	return retval;
+}
+
+static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
+{
+	struct zfcp_wka_port *wka_port = req->data;
+
+	if (req->qtcb->header.fsf_status == FSF_PORT_HANDLE_NOT_VALID) {
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		zfcp_erp_adapter_reopen(wka_port->adapter, 0, 107, req);
+	}
+
+	wka_port->status = ZFCP_WKA_PORT_OFFLINE;
+	wake_up(&wka_port->completion_wq);
+}
+
+/**
+ * zfcp_fsf_close_wka_port - create and send close wka port request
+ * @erp_action: pointer to struct zfcp_erp_action
+ * Returns: 0 on success, error otherwise
+ */
+int zfcp_fsf_close_wka_port(struct zfcp_wka_port *wka_port)
+{
+	struct qdio_buffer_element *sbale;
+	struct zfcp_adapter *adapter = wka_port->adapter;
+	struct zfcp_fsf_req *req;
+	int retval = -EIO;
+
+	spin_lock_bh(&adapter->req_q.lock);
+	if (zfcp_fsf_req_sbal_get(adapter))
+		goto out;
+
+	req = zfcp_fsf_req_create(adapter, FSF_QTCB_CLOSE_PORT,
+				  ZFCP_REQ_AUTO_CLEANUP,
+				  adapter->pool.fsf_req_erp);
+	if (unlikely(IS_ERR(req))) {
+		retval = PTR_ERR(req);
+		goto out;
+	}
+
+	sbale = zfcp_qdio_sbale_req(req);
+	sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
+	sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
+
+	req->handler = zfcp_fsf_close_wka_port_handler;
+	req->data = wka_port;
+	req->qtcb->header.port_handle = wka_port->handle;
+
+	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
+	retval = zfcp_fsf_req_send(req);
+	if (retval)
+		zfcp_fsf_req_free(req);
+out:
+	spin_unlock_bh(&adapter->req_q.lock);
+	return retval;
+}
+
 static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
 {
 	struct zfcp_port *port = req->data;
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 7e857571fe4..430e486e918 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -273,22 +273,7 @@ out:
 }
 static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
 
-static struct attribute *zfcp_port_ns_attrs[] = {
-	&dev_attr_port_failed.attr,
-	&dev_attr_port_in_recovery.attr,
-	&dev_attr_port_status.attr,
-	&dev_attr_port_access_denied.attr,
-	NULL
-};
-
-/**
- * zfcp_sysfs_ns_port_attrs - sysfs attributes for nameserver
- */
-struct attribute_group zfcp_sysfs_ns_port_attrs = {
-	.attrs = zfcp_port_ns_attrs,
-};
-
-static struct attribute *zfcp_port_no_ns_attrs[] = {
+static struct attribute *zfcp_port_attrs[] = {
 	&dev_attr_unit_add.attr,
 	&dev_attr_unit_remove.attr,
 	&dev_attr_port_failed.attr,
@@ -302,7 +287,7 @@ static struct attribute *zfcp_port_no_ns_attrs[] = {
  * zfcp_sysfs_port_attrs - sysfs attributes for all other ports
  */
 struct attribute_group zfcp_sysfs_port_attrs = {
-	.attrs = zfcp_port_no_ns_attrs,
+	.attrs = zfcp_port_attrs,
 };
 
 static struct attribute *zfcp_unit_attrs[] = {