[SCSI] zfcp: Trace all triggers of error recovery activity

This patch allows any recovery event to be traced back to an exact
cause, e.g. a particular request identified by an id (address).
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/s390/scsi/zfcp_aux.c

@@ -1326,10 +1326,10 @@ zfcp_nameserver_enqueue(struct zfcp_adapter *adapter)
 
 #define ZFCP_LOG_AREA                   ZFCP_LOG_AREA_FC
 
-static void
-zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
-			   struct fsf_status_read_buffer *status_buffer)
+static void zfcp_fsf_incoming_els_rscn(struct zfcp_fsf_req *fsf_req)
 {
+	struct fsf_status_read_buffer *status_buffer = (void*)fsf_req->data;
+	struct zfcp_adapter *adapter = fsf_req->adapter;
 	struct fcp_rscn_head *fcp_rscn_head;
 	struct fcp_rscn_element *fcp_rscn_element;
 	struct zfcp_port *port;
@@ -1376,7 +1376,8 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
 				ZFCP_LOG_INFO("incoming RSCN, trying to open "
 					      "port 0x%016Lx\n", port->wwpn);
 				zfcp_erp_port_reopen(port,
-						     ZFCP_STATUS_COMMON_ERP_FAILED);
+						     ZFCP_STATUS_COMMON_ERP_FAILED,
+						     82, (u64)fsf_req);
 				continue;
 			}
 
@@ -1407,10 +1408,10 @@ zfcp_fsf_incoming_els_rscn(struct zfcp_adapter *adapter,
 	}
 }
 
-static void
-zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
-			    struct fsf_status_read_buffer *status_buffer)
+static void zfcp_fsf_incoming_els_plogi(struct zfcp_fsf_req *fsf_req)
 {
+	struct fsf_status_read_buffer *status_buffer = (void*)fsf_req->data;
+	struct zfcp_adapter *adapter = fsf_req->adapter;
 	struct fsf_plogi *els_plogi;
 	struct zfcp_port *port;
 	unsigned long flags;
@@ -1429,14 +1430,14 @@ zfcp_fsf_incoming_els_plogi(struct zfcp_adapter *adapter,
 			       status_buffer->d_id,
 			       zfcp_get_busid_by_adapter(adapter));
 	} else {
-		zfcp_erp_port_forced_reopen(port, 0);
+		zfcp_erp_port_forced_reopen(port, 0, 83, (u64)fsf_req);
 	}
 }
 
-static void
-zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
-			   struct fsf_status_read_buffer *status_buffer)
+static void zfcp_fsf_incoming_els_logo(struct zfcp_fsf_req *fsf_req)
 {
+	struct fsf_status_read_buffer *status_buffer = (void*)fsf_req->data;
+	struct zfcp_adapter *adapter = fsf_req->adapter;
 	struct fcp_logo *els_logo = (struct fcp_logo *) status_buffer->payload;
 	struct zfcp_port *port;
 	unsigned long flags;
@@ -1454,7 +1455,7 @@ zfcp_fsf_incoming_els_logo(struct zfcp_adapter *adapter,
 			       status_buffer->d_id,
 			       zfcp_get_busid_by_adapter(adapter));
 	} else {
-		zfcp_erp_port_forced_reopen(port, 0);
+		zfcp_erp_port_forced_reopen(port, 0, 84, (u64)fsf_req);
 	}
 }
 
@@ -1481,12 +1482,12 @@ zfcp_fsf_incoming_els(struct zfcp_fsf_req *fsf_req)
 
 	zfcp_san_dbf_event_incoming_els(fsf_req);
 	if (els_type == LS_PLOGI)
-		zfcp_fsf_incoming_els_plogi(adapter, status_buffer);
+		zfcp_fsf_incoming_els_plogi(fsf_req);
 	else if (els_type == LS_LOGO)
-		zfcp_fsf_incoming_els_logo(adapter, status_buffer);
+		zfcp_fsf_incoming_els_logo(fsf_req);
 	else if ((els_type & 0xffff0000) == LS_RSCN)
 		/* we are only concerned with the command, not the length */
-		zfcp_fsf_incoming_els_rscn(adapter, status_buffer);
+		zfcp_fsf_incoming_els_rscn(fsf_req);
 	else
 		zfcp_fsf_incoming_els_unknown(adapter, status_buffer);
 }

drivers/s390/scsi/zfcp_ccw.c

@@ -172,7 +172,7 @@ zfcp_ccw_set_online(struct ccw_device *ccw_device)
 
 	zfcp_erp_modify_adapter_status(adapter, 10, 0,
 				       ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
-	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
+	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 85, 0);
 	zfcp_erp_wait(adapter);
 	goto out;
 
@@ -197,7 +197,7 @@ zfcp_ccw_set_offline(struct ccw_device *ccw_device)
 
 	down(&zfcp_data.config_sema);
 	adapter = dev_get_drvdata(&ccw_device->dev);
-	zfcp_erp_adapter_shutdown(adapter, 0);
+	zfcp_erp_adapter_shutdown(adapter, 0, 86, 0);
 	zfcp_erp_wait(adapter);
 	zfcp_erp_thread_kill(adapter);
 	up(&zfcp_data.config_sema);
@@ -224,13 +224,13 @@ zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
 		ZFCP_LOG_NORMAL("adapter %s: device gone\n",
 				zfcp_get_busid_by_adapter(adapter));
 		debug_text_event(adapter->erp_dbf,1,"dev_gone");
-		zfcp_erp_adapter_shutdown(adapter, 0);
+		zfcp_erp_adapter_shutdown(adapter, 0, 87, 0);
 		break;
 	case CIO_NO_PATH:
 		ZFCP_LOG_NORMAL("adapter %s: no path\n",
 				zfcp_get_busid_by_adapter(adapter));
 		debug_text_event(adapter->erp_dbf,1,"no_path");
-		zfcp_erp_adapter_shutdown(adapter, 0);
+		zfcp_erp_adapter_shutdown(adapter, 0, 88, 0);
 		break;
 	case CIO_OPER:
 		ZFCP_LOG_NORMAL("adapter %s: operational again\n",
@@ -240,7 +240,7 @@ zfcp_ccw_notify(struct ccw_device *ccw_device, int event)
 					       ZFCP_STATUS_COMMON_RUNNING,
 					       ZFCP_SET);
 		zfcp_erp_adapter_reopen(adapter,
-					ZFCP_STATUS_COMMON_ERP_FAILED);
+					ZFCP_STATUS_COMMON_ERP_FAILED, 89, 0);
 		break;
 	}
 	zfcp_erp_wait(adapter);
@@ -272,7 +272,7 @@ zfcp_ccw_shutdown(struct ccw_device *cdev)
 
 	down(&zfcp_data.config_sema);
 	adapter = dev_get_drvdata(&cdev->dev);
-	zfcp_erp_adapter_shutdown(adapter, 0);
+	zfcp_erp_adapter_shutdown(adapter, 0, 90, 0);
 	zfcp_erp_wait(adapter);
 	up(&zfcp_data.config_sema);
 }

drivers/s390/scsi/zfcp_dbf.c

@@ -523,6 +523,7 @@ static struct debug_view zfcp_hba_dbf_view = {
 static const char *zfcp_rec_dbf_tags[] = {
 	[ZFCP_REC_DBF_ID_THREAD] = "thread",
 	[ZFCP_REC_DBF_ID_TARGET] = "target",
+	[ZFCP_REC_DBF_ID_TRIGGER] = "trigger",
 };
 
 static const char *zfcp_rec_dbf_ids[] = {
@@ -587,6 +588,89 @@ static const char *zfcp_rec_dbf_ids[] = {
 	[59]	= "unit access denied open unit",
 	[60]	= "shared unit access denied open unit",
 	[61]	= "unit access denied fcp",
+	[62]	= "request timeout",
+	[63]	= "adisc link test reject or timeout",
+	[64]	= "adisc link test d_id changed",
+	[65]	= "adisc link test failed",
+	[66]	= "recovery out of memory",
+	[67]	= "adapter recovery repeated after state change",
+	[68]	= "port recovery repeated after state change",
+	[69]	= "unit recovery repeated after state change",
+	[70]	= "port recovery follow-up after successful adapter recovery",
+	[71]	= "adapter recovery escalation after failed adapter recovery",
+	[72]	= "port recovery follow-up after successful physical port "
+		  "recovery",
+	[73]	= "adapter recovery escalation after failed physical port "
+		  "recovery",
+	[74]	= "unit recovery follow-up after successful port recovery",
+	[75]	= "physical port recovery escalation after failed port "
+		  "recovery",
+	[76]	= "port recovery escalation after failed unit recovery",
+	[77]	= "recovery opening nameserver port",
+	[78]	= "duplicate request id",
+	[79]	= "link down",
+	[80]	= "exclusive read-only unit access unsupported",
+	[81]	= "shared read-write unit access unsupported",
+	[82]	= "incoming rscn",
+	[83]	= "incoming plogi",
+	[84]	= "incoming logo",
+	[85]	= "online",
+	[86]	= "offline",
+	[87]	= "ccw device gone",
+	[88]	= "ccw device no path",
+	[89]	= "ccw device operational",
+	[90]	= "ccw device shutdown",
+	[91]	= "sysfs port addition",
+	[92]	= "sysfs port removal",
+	[93]	= "sysfs adapter recovery",
+	[94]	= "sysfs unit addition",
+	[95]	= "sysfs unit removal",
+	[96]	= "sysfs port recovery",
+	[97]	= "sysfs unit recovery",
+	[98]	= "sequence number mismatch",
+	[99]	= "link up",
+	[100]	= "error state",
+	[101]	= "status read physical port closed",
+	[102]	= "link up status read",
+	[103]	= "too many failed status read buffers",
+	[104]	= "port handle not valid abort",
+	[105]	= "lun handle not valid abort",
+	[106]	= "port handle not valid ct",
+	[107]	= "port handle not valid close port",
+	[108]	= "port handle not valid close physical port",
+	[109]	= "port handle not valid open unit",
+	[110]	= "port handle not valid close unit",
+	[111]	= "lun handle not valid close unit",
+	[112]	= "port handle not valid fcp",
+	[113]	= "lun handle not valid fcp",
+	[114]	= "handle mismatch fcp",
+	[115]	= "lun not valid fcp",
+	[116]	= "qdio send failed",
+	[117]	= "version mismatch",
+	[118]	= "incompatible qtcb type",
+	[119]	= "unknown protocol status",
+	[120]	= "unknown fsf command",
+	[121]	= "no recommendation for status qualifier",
+	[122]	= "status read physical port closed in error",
+	[123]	= "fc service class not supported ct",
+	[124]	= "fc service class not supported els",
+	[125]	= "need newer zfcp",
+	[126]	= "need newer microcode",
+	[127]	= "arbitrated loop not supported",
+	[128]	= "unknown topology",
+	[129]	= "qtcb size mismatch",
+	[130]	= "unknown fsf status ecd",
+	[131]	= "fcp request too big",
+	[132]	= "fc service class not supported fcp",
+	[133]	= "data direction not valid fcp",
+	[134]	= "command length not valid fcp",
+	[135]	= "status read act update",
+	[136]	= "status read cfdc update",
+	[137]	= "hbaapi port open",
+	[138]	= "hbaapi unit open",
+	[139]	= "hbaapi unit shutdown",
+	[140]	= "qdio error",
+	[141]	= "scsi host reset",
 };
 
 static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
@@ -613,6 +697,17 @@ static int zfcp_rec_dbf_view_format(debug_info_t *id, struct debug_view *view,
 		zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.target.wwpn);
 		zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.target.fcp_lun);
 		break;
+	case ZFCP_REC_DBF_ID_TRIGGER:
+		zfcp_dbf_out(&p, "reference", "0x%016Lx", r->u.trigger.ref);
+		zfcp_dbf_out(&p, "erp_action", "0x%016Lx", r->u.trigger.action);
+		zfcp_dbf_out(&p, "requested", "%d", r->u.trigger.want);
+		zfcp_dbf_out(&p, "executed", "%d", r->u.trigger.need);
+		zfcp_dbf_out(&p, "wwpn", "0x%016Lx", r->u.trigger.wwpn);
+		zfcp_dbf_out(&p, "fcp_lun", "0x%016Lx", r->u.trigger.fcp_lun);
+		zfcp_dbf_out(&p, "adapter_status", "0x%08x", r->u.trigger.as);
+		zfcp_dbf_out(&p, "port_status", "0x%08x", r->u.trigger.ps);
+		zfcp_dbf_out(&p, "unit_status", "0x%08x", r->u.trigger.us);
+		break;
 	}
 	sprintf(p, "\n");
 	return (p - buf) + 1;
@@ -727,6 +822,45 @@ void zfcp_rec_dbf_event_unit(u8 id, u64 ref, struct zfcp_unit *unit)
 				  unit->fcp_lun);
 }
 
+/**
+ * zfcp_rec_dbf_event_trigger - trace event for triggered error recovery
+ * @id2: identifier for error recovery trigger
+ * @ref: additional reference (e.g. request)
+ * @want: originally requested error recovery action
+ * @need: error recovery action actually initiated
+ * @action: address of error recovery action struct
+ * @adapter: adapter
+ * @port: port
+ * @unit: unit
+ */
+void zfcp_rec_dbf_event_trigger(u8 id2, u64 ref, u8 want, u8 need, u64 action,
+				struct zfcp_adapter *adapter,
+				struct zfcp_port *port, struct zfcp_unit *unit)
+{
+	struct zfcp_rec_dbf_record *r = &adapter->rec_dbf_buf;
+	unsigned long flags;
+
+	spin_lock_irqsave(&adapter->rec_dbf_lock, flags);
+	memset(r, 0, sizeof(*r));
+	r->id = ZFCP_REC_DBF_ID_TRIGGER;
+	r->id2 = id2;
+	r->u.trigger.ref = ref;
+	r->u.trigger.want = want;
+	r->u.trigger.need = need;
+	r->u.trigger.action = action;
+	r->u.trigger.as = atomic_read(&adapter->status);
+	if (port) {
+		r->u.trigger.ps = atomic_read(&port->status);
+		r->u.trigger.wwpn = port->wwpn;
+	}
+	if (unit) {
+		r->u.trigger.us = atomic_read(&unit->status);
+		r->u.trigger.fcp_lun = unit->fcp_lun;
+	}
+	debug_event(adapter->rec_dbf, action ? 1 : 4, r, sizeof(*r));
+	spin_unlock_irqrestore(&adapter->rec_dbf_lock, flags);
+}
+
 static void
 _zfcp_san_dbf_event_common_ct(const char *tag, struct zfcp_fsf_req *fsf_req,
 			      u32 s_id, u32 d_id, void *buffer, int buflen)

drivers/s390/scsi/zfcp_def.h

@@ -295,18 +295,32 @@ struct zfcp_rec_dbf_record_target {
 	u32 erp_count;
 } __attribute__ ((packed));
 
+struct zfcp_rec_dbf_record_trigger {
+	u8 want;
+	u8 need;
+	u32 as;
+	u32 ps;
+	u32 us;
+	u64 ref;
+	u64 action;
+	u64 wwpn;
+	u64 fcp_lun;
+} __attribute__ ((packed));
+
 struct zfcp_rec_dbf_record {
 	u8 id;
 	u8 id2;
 	union {
 		struct zfcp_rec_dbf_record_thread thread;
 		struct zfcp_rec_dbf_record_target target;
+		struct zfcp_rec_dbf_record_trigger trigger;
 	} u;
 } __attribute__ ((packed));
 
 enum {
 	ZFCP_REC_DBF_ID_THREAD,
 	ZFCP_REC_DBF_ID_TARGET,
+	ZFCP_REC_DBF_ID_TRIGGER,
 };
 
 struct zfcp_hba_dbf_record_response {

drivers/s390/scsi/zfcp_ext.h

@@ -133,20 +133,20 @@ extern struct fc_function_template zfcp_transport_functions;
 /******************************** ERP ****************************************/
 extern void zfcp_erp_modify_adapter_status(struct zfcp_adapter *, u8, u64, u32,
 					   int);
-extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int);
-extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int);
+extern int  zfcp_erp_adapter_reopen(struct zfcp_adapter *, int, u8, u64);
+extern int  zfcp_erp_adapter_shutdown(struct zfcp_adapter *, int, u8, u64);
 extern void zfcp_erp_adapter_failed(struct zfcp_adapter *, u8, u64);
 
 extern void zfcp_erp_modify_port_status(struct zfcp_port *, u8, u64, u32, int);
-extern int  zfcp_erp_port_reopen(struct zfcp_port *, int);
-extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int);
-extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int);
+extern int  zfcp_erp_port_reopen(struct zfcp_port *, int, u8, u64);
+extern int  zfcp_erp_port_shutdown(struct zfcp_port *, int, u8, u64);
+extern int  zfcp_erp_port_forced_reopen(struct zfcp_port *, int, u8, u64);
 extern void zfcp_erp_port_failed(struct zfcp_port *, u8, u64);
-extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int);
+extern int  zfcp_erp_port_reopen_all(struct zfcp_adapter *, int, u8, u64);
 
 extern void zfcp_erp_modify_unit_status(struct zfcp_unit *, u8, u64, u32, int);
-extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int);
-extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int);
+extern int  zfcp_erp_unit_reopen(struct zfcp_unit *, int, u8, u64);
+extern int  zfcp_erp_unit_shutdown(struct zfcp_unit *, int, u8, u64);
 extern void zfcp_erp_unit_failed(struct zfcp_unit *, u8, u64);
 
 extern int  zfcp_erp_thread_setup(struct zfcp_adapter *);
@@ -160,9 +160,9 @@ extern void zfcp_erp_port_boxed(struct zfcp_port *, u8 id, u64 ref);
 extern void zfcp_erp_unit_boxed(struct zfcp_unit *, u8 id, u64 ref);
 extern void zfcp_erp_port_access_denied(struct zfcp_port *, u8 id, u64 ref);
 extern void zfcp_erp_unit_access_denied(struct zfcp_unit *, u8 id, u64 ref);
-extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *);
-extern void zfcp_erp_port_access_changed(struct zfcp_port *);
-extern void zfcp_erp_unit_access_changed(struct zfcp_unit *);
+extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, u8, u64);
+extern void zfcp_erp_port_access_changed(struct zfcp_port *, u8, u64);
+extern void zfcp_erp_unit_access_changed(struct zfcp_unit *, u8, u64);
 
 /******************************** AUX ****************************************/
 extern void zfcp_rec_dbf_event_thread(u8 id, struct zfcp_adapter *adapter,
@@ -170,6 +170,9 @@ extern void zfcp_rec_dbf_event_thread(u8 id, struct zfcp_adapter *adapter,
 extern void zfcp_rec_dbf_event_adapter(u8 id, u64 ref, struct zfcp_adapter *);
 extern void zfcp_rec_dbf_event_port(u8 id, u64 ref, struct zfcp_port *port);
 extern void zfcp_rec_dbf_event_unit(u8 id, u64 ref, struct zfcp_unit *unit);
+extern void zfcp_rec_dbf_event_trigger(u8 id, u64 ref, u8 want, u8 need,
+				       u64 action, struct zfcp_adapter *,
+				       struct zfcp_port *, struct zfcp_unit *);
 
 extern void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *);
 extern void zfcp_hba_dbf_event_fsf_unsol(const char *, struct zfcp_adapter *,

drivers/s390/scsi/zfcp_qdio.c

@@ -176,7 +176,7 @@ zfcp_qdio_handler_error_check(struct zfcp_adapter *adapter, unsigned int status,
                 */
 		zfcp_erp_adapter_reopen(adapter,
 					ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
-				       ZFCP_STATUS_COMMON_ERP_FAILED);
+					ZFCP_STATUS_COMMON_ERP_FAILED, 140, 0);
 	}
 	return retval;
 }

drivers/s390/scsi/zfcp_scsi.c

@@ -529,7 +529,7 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 		unit->fcp_lun, unit->port->wwpn,
 		zfcp_get_busid_by_adapter(unit->port->adapter));
 
-	zfcp_erp_adapter_reopen(adapter, 0);
+	zfcp_erp_adapter_reopen(adapter, 0, 141, (u64)scpnt);
 	zfcp_erp_wait(adapter);
 
 	return SUCCESS;

drivers/s390/scsi/zfcp_sysfs_adapter.c

@@ -89,7 +89,7 @@ zfcp_sysfs_port_add_store(struct device *dev, struct device_attribute *attr, con
 
 	retval = 0;
 
-	zfcp_erp_port_reopen(port, 0);
+	zfcp_erp_port_reopen(port, 0, 91, 0);
 	zfcp_erp_wait(port->adapter);
 	zfcp_port_put(port);
  out:
@@ -147,7 +147,7 @@ zfcp_sysfs_port_remove_store(struct device *dev, struct device_attribute *attr,
 		goto out;
 	}
 
-	zfcp_erp_port_shutdown(port, 0);
+	zfcp_erp_port_shutdown(port, 0, 92, 0);
 	zfcp_erp_wait(adapter);
 	zfcp_port_put(port);
 	zfcp_port_dequeue(port);
@@ -193,7 +193,7 @@ zfcp_sysfs_adapter_failed_store(struct device *dev, struct device_attribute *att
 
 	zfcp_erp_modify_adapter_status(adapter, 44, 0,
 				       ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
-	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
+	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED, 93, 0);
 	zfcp_erp_wait(adapter);
  out:
 	up(&zfcp_data.config_sema);

drivers/s390/scsi/zfcp_sysfs_port.c

@@ -94,7 +94,7 @@ zfcp_sysfs_unit_add_store(struct device *dev, struct device_attribute *attr, con
 
 	retval = 0;
 
-	zfcp_erp_unit_reopen(unit, 0);
+	zfcp_erp_unit_reopen(unit, 0, 94, 0);
 	zfcp_erp_wait(unit->port->adapter);
 	zfcp_unit_put(unit);
  out:
@@ -150,7 +150,7 @@ zfcp_sysfs_unit_remove_store(struct device *dev, struct device_attribute *attr,
 		goto out;
 	}
 
-	zfcp_erp_unit_shutdown(unit, 0);
+	zfcp_erp_unit_shutdown(unit, 0, 95, 0);
 	zfcp_erp_wait(unit->port->adapter);
 	zfcp_unit_put(unit);
 	zfcp_unit_dequeue(unit);
@@ -195,7 +195,7 @@ zfcp_sysfs_port_failed_store(struct device *dev, struct device_attribute *attr,
 
 	zfcp_erp_modify_port_status(port, 45, 0,
 				    ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
-	zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED);
+	zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, 96, 0);
 	zfcp_erp_wait(port->adapter);
  out:
 	up(&zfcp_data.config_sema);

drivers/s390/scsi/zfcp_sysfs_unit.c

@@ -96,7 +96,7 @@ zfcp_sysfs_unit_failed_store(struct device *dev, struct device_attribute *attr,
 
 	zfcp_erp_modify_unit_status(unit, 46, 0,
 				    ZFCP_STATUS_COMMON_RUNNING, ZFCP_SET);
-	zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED);
+	zfcp_erp_unit_reopen(unit, ZFCP_STATUS_COMMON_ERP_FAILED, 97, 0);
 	zfcp_erp_wait(unit->port->adapter);
  out:
 	up(&zfcp_data.config_sema);