1 files changed, 263 insertions, 346 deletions

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 9d1d7d1842ce..beaf0916ceab 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -61,45 +61,6 @@ static u32 fsf_qtcb_type[] = {
 	[FSF_QTCB_UPLOAD_CONTROL_FILE] =  FSF_SUPPORT_COMMAND
 };
 
-static void zfcp_act_eval_err(struct zfcp_adapter *adapter, u32 table)
-{
-	u16 subtable = table >> 16;
-	u16 rule = table & 0xffff;
-	const char *act_type[] = { "unknown", "OS", "WWPN", "DID", "LUN" };
-
-	if (subtable && subtable < ARRAY_SIZE(act_type))
-		dev_warn(&adapter->ccw_device->dev,
-			 "Access denied according to ACT rule type %s, "
-			 "rule %d\n", act_type[subtable], rule);
-}
-
-static void zfcp_fsf_access_denied_port(struct zfcp_fsf_req *req,
-					struct zfcp_port *port)
-{
-	struct fsf_qtcb_header *header = &req->qtcb->header;
-	dev_warn(&req->adapter->ccw_device->dev,
-		 "Access denied to port 0x%016Lx\n",
-		 (unsigned long long)port->wwpn);
-	zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
-	zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
-	zfcp_erp_port_access_denied(port, "fspad_1", req);
-	req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-}
-
-static void zfcp_fsf_access_denied_unit(struct zfcp_fsf_req *req,
-					struct zfcp_unit *unit)
-{
-	struct fsf_qtcb_header *header = &req->qtcb->header;
-	dev_warn(&req->adapter->ccw_device->dev,
-		 "Access denied to unit 0x%016Lx on port 0x%016Lx\n",
-		 (unsigned long long)unit->fcp_lun,
-		 (unsigned long long)unit->port->wwpn);
-	zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[0]);
-	zfcp_act_eval_err(req->adapter, header->fsf_status_qual.halfword[1]);
-	zfcp_erp_unit_access_denied(unit, "fsuad_1", req);
-	req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-}
-
 static void zfcp_fsf_class_not_supp(struct zfcp_fsf_req *req)
 {
 	dev_err(&req->adapter->ccw_device->dev, "FCP device not "
@@ -143,7 +104,7 @@ static void zfcp_fsf_status_read_port_closed(struct zfcp_fsf_req *req)
 	read_unlock_irqrestore(&adapter->port_list_lock, flags);
 }
 
-static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
+static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req,
 					 struct fsf_link_down_info *link_down)
 {
 	struct zfcp_adapter *adapter = req->adapter;
@@ -223,7 +184,7 @@ static void zfcp_fsf_link_down_info_eval(struct zfcp_fsf_req *req, char *id,
 			 "the FC fabric is down\n");
 	}
 out:
-	zfcp_erp_adapter_failed(adapter, id, req);
+	zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_ERP_FAILED);
 }
 
 static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req)
@@ -234,13 +195,13 @@ static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req)
 
 	switch (sr_buf->status_subtype) {
 	case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
-		zfcp_fsf_link_down_info_eval(req, "fssrld1", ldi);
+		zfcp_fsf_link_down_info_eval(req, ldi);
 		break;
 	case FSF_STATUS_READ_SUB_FDISC_FAILED:
-		zfcp_fsf_link_down_info_eval(req, "fssrld2", ldi);
+		zfcp_fsf_link_down_info_eval(req, ldi);
 		break;
 	case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
-		zfcp_fsf_link_down_info_eval(req, "fssrld3", NULL);
+		zfcp_fsf_link_down_info_eval(req, NULL);
 	};
 }
 
@@ -281,9 +242,8 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 		dev_info(&adapter->ccw_device->dev,
 			 "The local link has been restored\n");
 		/* All ports should be marked as ready to run again */
-		zfcp_erp_modify_adapter_status(adapter, "fssrh_1", NULL,
-					       ZFCP_STATUS_COMMON_RUNNING,
-					       ZFCP_SET);
+		zfcp_erp_set_adapter_status(adapter,
+					    ZFCP_STATUS_COMMON_RUNNING);
 		zfcp_erp_adapter_reopen(adapter,
 					ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
 					ZFCP_STATUS_COMMON_ERP_FAILED,
@@ -293,13 +253,12 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req)
 		break;
 	case FSF_STATUS_READ_NOTIFICATION_LOST:
 		if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_ACT_UPDATED)
-			zfcp_erp_adapter_access_changed(adapter, "fssrh_3",
-							req);
+			zfcp_cfdc_adapter_access_changed(adapter);
 		if (sr_buf->status_subtype & FSF_STATUS_READ_SUB_INCOMING_ELS)
 			queue_work(adapter->work_queue, &adapter->scan_work);
 		break;
 	case FSF_STATUS_READ_CFDC_UPDATED:
-		zfcp_erp_adapter_access_changed(adapter, "fssrh_4", req);
+		zfcp_cfdc_adapter_access_changed(adapter);
 		break;
 	case FSF_STATUS_READ_FEATURE_UPDATE_ALERT:
 		adapter->adapter_features = sr_buf->payload.word[0];
@@ -399,16 +358,14 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req)
 		zfcp_erp_adapter_shutdown(adapter, 0, "fspse_4", req);
 		break;
 	case FSF_PROT_LINK_DOWN:
-		zfcp_fsf_link_down_info_eval(req, "fspse_5",
-					     &psq->link_down_info);
+		zfcp_fsf_link_down_info_eval(req, &psq->link_down_info);
 		/* go through reopen to flush pending requests */
 		zfcp_erp_adapter_reopen(adapter, 0, "fspse_6", req);
 		break;
 	case FSF_PROT_REEST_QUEUE:
 		/* All ports should be marked as ready to run again */
-		zfcp_erp_modify_adapter_status(adapter, "fspse_7", NULL,
-					       ZFCP_STATUS_COMMON_RUNNING,
-					       ZFCP_SET);
+		zfcp_erp_set_adapter_status(adapter,
+					    ZFCP_STATUS_COMMON_RUNNING);
 		zfcp_erp_adapter_reopen(adapter,
 					ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED |
 					ZFCP_STATUS_COMMON_ERP_FAILED,
@@ -578,7 +535,7 @@ static void zfcp_fsf_exchange_config_data_handler(struct zfcp_fsf_req *req)
 		atomic_set_mask(ZFCP_STATUS_ADAPTER_XCONFIG_OK,
 				&adapter->status);
 
-		zfcp_fsf_link_down_info_eval(req, "fsecdh2",
+		zfcp_fsf_link_down_info_eval(req,
 			&qtcb->header.fsf_status_qual.link_down_info);
 		break;
 	default:
@@ -644,7 +601,7 @@ static void zfcp_fsf_exchange_port_data_handler(struct zfcp_fsf_req *req)
 		break;
 	case FSF_EXCHANGE_CONFIG_DATA_INCOMPLETE:
 		zfcp_fsf_exchange_port_evaluate(req);
-		zfcp_fsf_link_down_info_eval(req, "fsepdh1",
+		zfcp_fsf_link_down_info_eval(req,
 			&qtcb->header.fsf_status_qual.link_down_info);
 		break;
 	}
@@ -771,7 +728,7 @@ int zfcp_fsf_status_read(struct zfcp_qdio *qdio)
 	struct fsf_status_read_buffer *sr_buf;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -805,13 +762,14 @@ failed_buf:
 	zfcp_fsf_req_free(req);
 	zfcp_dbf_hba_fsf_unsol("fail", adapter->dbf, NULL);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
 static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
 {
-	struct zfcp_unit *unit = req->data;
+	struct scsi_device *sdev = req->data;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
 	union fsf_status_qual *fsq = &req->qtcb->header.fsf_status_qual;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
@@ -820,14 +778,15 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
 	switch (req->qtcb->header.fsf_status) {
 	case FSF_PORT_HANDLE_NOT_VALID:
 		if (fsq->word[0] == fsq->word[1]) {
-			zfcp_erp_adapter_reopen(unit->port->adapter, 0,
+			zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0,
 						"fsafch1", req);
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		}
 		break;
 	case FSF_LUN_HANDLE_NOT_VALID:
 		if (fsq->word[0] == fsq->word[1]) {
-			zfcp_erp_port_reopen(unit->port, 0, "fsafch2", req);
+			zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fsafch2",
+					     req);
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		}
 		break;
@@ -835,17 +794,23 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
 		req->status |= ZFCP_STATUS_FSFREQ_ABORTNOTNEEDED;
 		break;
 	case FSF_PORT_BOXED:
-		zfcp_erp_port_boxed(unit->port, "fsafch3", req);
+		zfcp_erp_set_port_status(zfcp_sdev->port,
+					 ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_port_reopen(zfcp_sdev->port,
+				     ZFCP_STATUS_COMMON_ERP_FAILED, "fsafch3",
+				     req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_LUN_BOXED:
-		zfcp_erp_unit_boxed(unit, "fsafch4", req);
+		zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
+				    "fsafch4", req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
                 break;
 	case FSF_ADAPTER_STATUS_AVAILABLE:
 		switch (fsq->word[0]) {
 		case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
-			zfcp_fc_test_link(unit->port);
+			zfcp_fc_test_link(zfcp_sdev->port);
 			/* fall through */
 		case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -859,19 +824,20 @@ static void zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *req)
 }
 
 /**
- * zfcp_fsf_abort_fcp_command - abort running SCSI command
- * @old_req_id: unsigned long
- * @unit: pointer to struct zfcp_unit
+ * zfcp_fsf_abort_fcp_cmnd - abort running SCSI command
+ * @scmnd: The SCSI command to abort
  * Returns: pointer to struct zfcp_fsf_req
  */
 
-struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
-						struct zfcp_unit *unit)
+struct zfcp_fsf_req *zfcp_fsf_abort_fcp_cmnd(struct scsi_cmnd *scmnd)
 {
 	struct zfcp_fsf_req *req = NULL;
-	struct zfcp_qdio *qdio = unit->port->adapter->qdio;
+	struct scsi_device *sdev = scmnd->device;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio;
+	unsigned long old_req_id = (unsigned long) scmnd->host_scribble;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 	req = zfcp_fsf_req_create(qdio, FSF_QTCB_ABORT_FCP_CMND,
@@ -882,16 +848,16 @@ struct zfcp_fsf_req *zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
 		goto out;
 	}
 
-	if (unlikely(!(atomic_read(&unit->status) &
+	if (unlikely(!(atomic_read(&zfcp_sdev->status) &
 		       ZFCP_STATUS_COMMON_UNBLOCKED)))
 		goto out_error_free;
 
 	zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 
-	req->data = unit;
+	req->data = zfcp_sdev;
 	req->handler = zfcp_fsf_abort_fcp_command_handler;
-	req->qtcb->header.lun_handle = unit->handle;
-	req->qtcb->header.port_handle = unit->port->handle;
+	req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
+	req->qtcb->header.port_handle = zfcp_sdev->port->handle;
 	req->qtcb->bottom.support.req_handle = (u64) old_req_id;
 
 	zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
@@ -902,7 +868,7 @@ out_error_free:
 	zfcp_fsf_req_free(req);
 	req = NULL;
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return req;
 }
 
@@ -1041,7 +1007,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
 	struct zfcp_fsf_req *req;
 	int ret = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1073,7 +1039,7 @@ int zfcp_fsf_send_ct(struct zfcp_fc_wka_port *wka_port,
 failed_send:
 	zfcp_fsf_req_free(req);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return ret;
 }
 
@@ -1111,8 +1077,10 @@ static void zfcp_fsf_send_els_handler(struct zfcp_fsf_req *req)
 	case FSF_RESPONSE_SIZE_TOO_LARGE:
 		break;
 	case FSF_ACCESS_DENIED:
-		if (port)
-			zfcp_fsf_access_denied_port(req, port);
+		if (port) {
+			zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
+			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		}
 		break;
 	case FSF_SBAL_MISMATCH:
 		/* should never occure, avoided in zfcp_fsf_send_els */
@@ -1137,7 +1105,7 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
 	struct zfcp_qdio *qdio = adapter->qdio;
 	int ret = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1173,7 +1141,7 @@ int zfcp_fsf_send_els(struct zfcp_adapter *adapter, u32 d_id,
 failed_send:
 	zfcp_fsf_req_free(req);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return ret;
 }
 
@@ -1183,7 +1151,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
 	struct zfcp_qdio *qdio = erp_action->adapter->qdio;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1215,7 +1183,7 @@ int zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1225,7 +1193,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
 	struct zfcp_fsf_req *req = NULL;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out_unlock;
 
@@ -1251,7 +1219,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
 
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	if (!retval)
 		wait_for_completion(&req->completion);
 
@@ -1259,7 +1227,7 @@ int zfcp_fsf_exchange_config_data_sync(struct zfcp_qdio *qdio,
 	return retval;
 
 out_unlock:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1277,7 +1245,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
 	if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
 		return -EOPNOTSUPP;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1304,7 +1272,7 @@ int zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1323,7 +1291,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
 	if (!(qdio->adapter->adapter_features & FSF_FEATURE_HBAAPI_MANAGEMENT))
 		return -EOPNOTSUPP;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out_unlock;
 
@@ -1343,7 +1311,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
 	req->handler = zfcp_fsf_exchange_port_data_handler;
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 
 	if (!retval)
 		wait_for_completion(&req->completion);
@@ -1353,7 +1321,7 @@ int zfcp_fsf_exchange_port_data_sync(struct zfcp_qdio *qdio,
 	return retval;
 
 out_unlock:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1370,14 +1338,16 @@ static void zfcp_fsf_open_port_handler(struct zfcp_fsf_req *req)
 	case FSF_PORT_ALREADY_OPEN:
 		break;
 	case FSF_ACCESS_DENIED:
-		zfcp_fsf_access_denied_port(req, port);
+		zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_MAXIMUM_NUMBER_OF_PORTS_EXCEEDED:
 		dev_warn(&req->adapter->ccw_device->dev,
 			 "Not enough FCP adapter resources to open "
 			 "remote port 0x%016Lx\n",
 			 (unsigned long long)port->wwpn);
-		zfcp_erp_port_failed(port, "fsoph_1", req);
+		zfcp_erp_set_port_status(port,
+					 ZFCP_STATUS_COMMON_ERP_FAILED);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1437,7 +1407,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1468,7 +1438,7 @@ int zfcp_fsf_open_port(struct zfcp_erp_action *erp_action)
 		put_device(&port->dev);
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1487,9 +1457,7 @@ static void zfcp_fsf_close_port_handler(struct zfcp_fsf_req *req)
 	case FSF_ADAPTER_STATUS_AVAILABLE:
 		break;
 	case FSF_GOOD:
-		zfcp_erp_modify_port_status(port, "fscph_2", req,
-					    ZFCP_STATUS_COMMON_OPEN,
-					    ZFCP_CLEAR);
+		zfcp_erp_clear_port_status(port, ZFCP_STATUS_COMMON_OPEN);
 		break;
 	}
 }
@@ -1505,7 +1473,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1534,7 +1502,7 @@ int zfcp_fsf_close_port(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1580,7 +1548,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1605,7 +1573,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
 	if (retval)
 		zfcp_fsf_req_free(req);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1633,7 +1601,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1658,7 +1626,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
 	if (retval)
 		zfcp_fsf_req_free(req);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -1666,7 +1634,7 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
 {
 	struct zfcp_port *port = req->data;
 	struct fsf_qtcb_header *header = &req->qtcb->header;
-	struct zfcp_unit *unit;
+	struct scsi_device *sdev;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
@@ -1677,18 +1645,19 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_ACCESS_DENIED:
-		zfcp_fsf_access_denied_port(req, port);
+		zfcp_cfdc_port_denied(port, &header->fsf_status_qual);
 		break;
 	case FSF_PORT_BOXED:
 		/* can't use generic zfcp_erp_modify_port_status because
 		 * ZFCP_STATUS_COMMON_OPEN must not be reset for the port */
 		atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
-		read_lock(&port->unit_list_lock);
-		list_for_each_entry(unit, &port->unit_list, list)
-			atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
-					  &unit->status);
-		read_unlock(&port->unit_list_lock);
-		zfcp_erp_port_boxed(port, "fscpph2", req);
+		shost_for_each_device(sdev, port->adapter->scsi_host)
+			if (sdev_to_zfcp(sdev)->port == port)
+				atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
+						  &sdev_to_zfcp(sdev)->status);
+		zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED,
+				     "fscpph2", req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_ADAPTER_STATUS_AVAILABLE:
@@ -1705,11 +1674,10 @@ static void zfcp_fsf_close_physical_port_handler(struct zfcp_fsf_req *req)
 		 * ZFCP_STATUS_COMMON_OPEN must not be reset for the port
 		 */
 		atomic_clear_mask(ZFCP_STATUS_PORT_PHYS_OPEN, &port->status);
-		read_lock(&port->unit_list_lock);
-		list_for_each_entry(unit, &port->unit_list, list)
-			atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
-					  &unit->status);
-		read_unlock(&port->unit_list_lock);
+		shost_for_each_device(sdev, port->adapter->scsi_host)
+			if (sdev_to_zfcp(sdev)->port == port)
+				atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN,
+						  &sdev_to_zfcp(sdev)->status);
 		break;
 	}
 }
@@ -1725,7 +1693,7 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1754,69 +1722,57 @@ int zfcp_fsf_close_physical_port(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
-static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
+static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
 {
 	struct zfcp_adapter *adapter = req->adapter;
-	struct zfcp_unit *unit = req->data;
+	struct scsi_device *sdev = req->data;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
 	struct fsf_qtcb_header *header = &req->qtcb->header;
 	struct fsf_qtcb_bottom_support *bottom = &req->qtcb->bottom.support;
-	struct fsf_queue_designator *queue_designator =
-				&header->fsf_status_qual.fsf_queue_designator;
-	int exclusive, readwrite;
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
 
 	atomic_clear_mask(ZFCP_STATUS_COMMON_ACCESS_DENIED |
 			  ZFCP_STATUS_COMMON_ACCESS_BOXED |
-			  ZFCP_STATUS_UNIT_SHARED |
-			  ZFCP_STATUS_UNIT_READONLY,
-			  &unit->status);
+			  ZFCP_STATUS_LUN_SHARED |
+			  ZFCP_STATUS_LUN_READONLY,
+			  &zfcp_sdev->status);
 
 	switch (header->fsf_status) {
 
 	case FSF_PORT_HANDLE_NOT_VALID:
-		zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fsouh_1", req);
+		zfcp_erp_adapter_reopen(adapter, 0, "fsouh_1", req);
 		/* fall through */
 	case FSF_LUN_ALREADY_OPEN:
 		break;
 	case FSF_ACCESS_DENIED:
-		zfcp_fsf_access_denied_unit(req, unit);
-		atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status);
-		atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
+		zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_PORT_BOXED:
-		zfcp_erp_port_boxed(unit->port, "fsouh_2", req);
+		zfcp_erp_set_port_status(zfcp_sdev->port,
+					 ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_port_reopen(zfcp_sdev->port,
+				     ZFCP_STATUS_COMMON_ERP_FAILED, "fsouh_2",
+				     req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_LUN_SHARING_VIOLATION:
-		if (header->fsf_status_qual.word[0])
-			dev_warn(&adapter->ccw_device->dev,
-				 "LUN 0x%Lx on port 0x%Lx is already in "
-				 "use by CSS%d, MIF Image ID %x\n",
-				 (unsigned long long)unit->fcp_lun,
-				 (unsigned long long)unit->port->wwpn,
-				 queue_designator->cssid,
-				 queue_designator->hla);
-		else
-			zfcp_act_eval_err(adapter,
-					  header->fsf_status_qual.word[2]);
-		zfcp_erp_unit_access_denied(unit, "fsouh_3", req);
-		atomic_clear_mask(ZFCP_STATUS_UNIT_SHARED, &unit->status);
-		atomic_clear_mask(ZFCP_STATUS_UNIT_READONLY, &unit->status);
+		zfcp_cfdc_lun_shrng_vltn(sdev, &header->fsf_status_qual);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_MAXIMUM_NUMBER_OF_LUNS_EXCEEDED:
 		dev_warn(&adapter->ccw_device->dev,
 			 "No handle is available for LUN "
 			 "0x%016Lx on port 0x%016Lx\n",
-			 (unsigned long long)unit->fcp_lun,
-			 (unsigned long long)unit->port->wwpn);
-		zfcp_erp_unit_failed(unit, "fsouh_4", req);
+			 (unsigned long long)zfcp_scsi_dev_lun(sdev),
+			 (unsigned long long)zfcp_sdev->port->wwpn);
+		zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ERP_FAILED);
 		/* fall through */
 	case FSF_INVALID_COMMAND_OPTION:
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1824,7 +1780,7 @@ static void zfcp_fsf_open_unit_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_fc_test_link(unit->port);
+			zfcp_fc_test_link(zfcp_sdev->port);
 			/* fall through */
 		case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1833,70 +1789,26 @@ static void zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *req)
 		break;
 
 	case FSF_GOOD:
-		unit->handle = header->lun_handle;
-		atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status);
-
-		if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE) &&
-		    (adapter->adapter_features & FSF_FEATURE_LUN_SHARING) &&
-		    !zfcp_ccw_priv_sch(adapter)) {
-			exclusive = (bottom->lun_access_info &
-					FSF_UNIT_ACCESS_EXCLUSIVE);
-			readwrite = (bottom->lun_access_info &
-					FSF_UNIT_ACCESS_OUTBOUND_TRANSFER);
-
-			if (!exclusive)
-		                atomic_set_mask(ZFCP_STATUS_UNIT_SHARED,
-						&unit->status);
-
-			if (!readwrite) {
-                		atomic_set_mask(ZFCP_STATUS_UNIT_READONLY,
-						&unit->status);
-				dev_info(&adapter->ccw_device->dev,
-					 "SCSI device at LUN 0x%016Lx on port "
-					 "0x%016Lx opened read-only\n",
-					 (unsigned long long)unit->fcp_lun,
-					 (unsigned long long)unit->port->wwpn);
-        		}
-
-        		if (exclusive && !readwrite) {
-				dev_err(&adapter->ccw_device->dev,
-					"Exclusive read-only access not "
-					"supported (unit 0x%016Lx, "
-					"port 0x%016Lx)\n",
-					(unsigned long long)unit->fcp_lun,
-					(unsigned long long)unit->port->wwpn);
-				zfcp_erp_unit_failed(unit, "fsouh_5", req);
-				req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-				zfcp_erp_unit_shutdown(unit, 0, "fsouh_6", req);
-        		} else if (!exclusive && readwrite) {
-				dev_err(&adapter->ccw_device->dev,
-					"Shared read-write access not "
-					"supported (unit 0x%016Lx, port "
-					"0x%016Lx)\n",
-					(unsigned long long)unit->fcp_lun,
-					(unsigned long long)unit->port->wwpn);
-				zfcp_erp_unit_failed(unit, "fsouh_7", req);
-				req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-				zfcp_erp_unit_shutdown(unit, 0, "fsouh_8", req);
-        		}
-		}
+		zfcp_sdev->lun_handle = header->lun_handle;
+		atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status);
+		zfcp_cfdc_open_lun_eval(sdev, bottom);
 		break;
 	}
 }
 
 /**
- * zfcp_fsf_open_unit - open unit
+ * zfcp_fsf_open_lun - open LUN
  * @erp_action: pointer to struct zfcp_erp_action
  * Returns: 0 on success, error otherwise
  */
-int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
+int zfcp_fsf_open_lun(struct zfcp_erp_action *erp_action)
 {
 	struct zfcp_adapter *adapter = erp_action->adapter;
 	struct zfcp_qdio *qdio = adapter->qdio;
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1913,9 +1825,9 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
 	zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 
 	req->qtcb->header.port_handle = erp_action->port->handle;
-	req->qtcb->bottom.support.fcp_lun = erp_action->unit->fcp_lun;
-	req->handler = zfcp_fsf_open_unit_handler;
-	req->data = erp_action->unit;
+	req->qtcb->bottom.support.fcp_lun = zfcp_scsi_dev_lun(erp_action->sdev);
+	req->handler = zfcp_fsf_open_lun_handler;
+	req->data = erp_action->sdev;
 	req->erp_action = erp_action;
 	erp_action->fsf_req_id = req->req_id;
 
@@ -1929,34 +1841,40 @@ int zfcp_fsf_open_unit(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
-static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
+static void zfcp_fsf_close_lun_handler(struct zfcp_fsf_req *req)
 {
-	struct zfcp_unit *unit = req->data;
+	struct scsi_device *sdev = req->data;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
 
 	if (req->status & ZFCP_STATUS_FSFREQ_ERROR)
 		return;
 
 	switch (req->qtcb->header.fsf_status) {
 	case FSF_PORT_HANDLE_NOT_VALID:
-		zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fscuh_1", req);
+		zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fscuh_1",
+					req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_LUN_HANDLE_NOT_VALID:
-		zfcp_erp_port_reopen(unit->port, 0, "fscuh_2", req);
+		zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fscuh_2", req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_PORT_BOXED:
-		zfcp_erp_port_boxed(unit->port, "fscuh_3", req);
+		zfcp_erp_set_port_status(zfcp_sdev->port,
+					 ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_port_reopen(zfcp_sdev->port,
+				     ZFCP_STATUS_COMMON_ERP_FAILED, "fscuh_3",
+				     req);
 		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
 		break;
 	case FSF_ADAPTER_STATUS_AVAILABLE:
 		switch (req->qtcb->header.fsf_status_qual.word[0]) {
 		case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
-			zfcp_fc_test_link(unit->port);
+			zfcp_fc_test_link(zfcp_sdev->port);
 			/* fall through */
 		case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
 			req->status |= ZFCP_STATUS_FSFREQ_ERROR;
@@ -1964,23 +1882,24 @@ static void zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *req)
 		}
 		break;
 	case FSF_GOOD:
-		atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &unit->status);
+		atomic_clear_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->status);
 		break;
 	}
 }
 
 /**
- * zfcp_fsf_close_unit - close zfcp unit
- * @erp_action: pointer to struct zfcp_unit
+ * zfcp_fsf_close_LUN - close LUN
+ * @erp_action: pointer to erp_action triggering the "close LUN"
  * Returns: 0 on success, error otherwise
  */
-int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
+int zfcp_fsf_close_lun(struct zfcp_erp_action *erp_action)
 {
 	struct zfcp_qdio *qdio = erp_action->adapter->qdio;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(erp_action->sdev);
 	struct zfcp_fsf_req *req;
 	int retval = -EIO;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -1997,9 +1916,9 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
 	zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 
 	req->qtcb->header.port_handle = erp_action->port->handle;
-	req->qtcb->header.lun_handle = erp_action->unit->handle;
-	req->handler = zfcp_fsf_close_unit_handler;
-	req->data = erp_action->unit;
+	req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
+	req->handler = zfcp_fsf_close_lun_handler;
+	req->data = erp_action->sdev;
 	req->erp_action = erp_action;
 	erp_action->fsf_req_id = req->req_id;
 
@@ -2010,7 +1929,7 @@ int zfcp_fsf_close_unit(struct zfcp_erp_action *erp_action)
 		erp_action->fsf_req_id = 0;
 	}
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return retval;
 }
 
@@ -2025,7 +1944,7 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 {
 	struct fsf_qual_latency_info *lat_in;
 	struct latency_cont *lat = NULL;
-	struct zfcp_unit *unit = req->unit;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scsi->device);
 	struct zfcp_blk_drv_data blktrc;
 	int ticks = req->adapter->timer_ticks;
 
@@ -2048,24 +1967,24 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 		case FSF_DATADIR_DIF_READ_STRIP:
 		case FSF_DATADIR_DIF_READ_CONVERT:
 		case FSF_DATADIR_READ:
-			lat = &unit->latencies.read;
+			lat = &zfcp_sdev->latencies.read;
 			break;
 		case FSF_DATADIR_DIF_WRITE_INSERT:
 		case FSF_DATADIR_DIF_WRITE_CONVERT:
 		case FSF_DATADIR_WRITE:
-			lat = &unit->latencies.write;
+			lat = &zfcp_sdev->latencies.write;
 			break;
 		case FSF_DATADIR_CMND:
-			lat = &unit->latencies.cmd;
+			lat = &zfcp_sdev->latencies.cmd;
 			break;
 		}
 
 		if (lat) {
-			spin_lock(&unit->latencies.lock);
+			spin_lock(&zfcp_sdev->latencies.lock);
 			zfcp_fsf_update_lat(&lat->channel, lat_in->channel_lat);
 			zfcp_fsf_update_lat(&lat->fabric, lat_in->fabric_lat);
 			lat->counter++;
-			spin_unlock(&unit->latencies.lock);
+			spin_unlock(&zfcp_sdev->latencies.lock);
 		}
 	}
 
@@ -2073,12 +1992,88 @@ static void zfcp_fsf_req_trace(struct zfcp_fsf_req *req, struct scsi_cmnd *scsi)
 			    sizeof(blktrc));
 }
 
-static void zfcp_fsf_send_fcp_command_task_handler(struct zfcp_fsf_req *req)
+static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
+{
+	struct scsi_cmnd *scmnd = req->data;
+	struct scsi_device *sdev = scmnd->device;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct fsf_qtcb_header *header = &req->qtcb->header;
+
+	if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
+		return;
+
+	switch (header->fsf_status) {
+	case FSF_HANDLE_MISMATCH:
+	case FSF_PORT_HANDLE_NOT_VALID:
+		zfcp_erp_adapter_reopen(zfcp_sdev->port->adapter, 0, "fssfch1",
+					req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_FCPLUN_NOT_VALID:
+	case FSF_LUN_HANDLE_NOT_VALID:
+		zfcp_erp_port_reopen(zfcp_sdev->port, 0, "fssfch2", req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_SERVICE_CLASS_NOT_SUPPORTED:
+		zfcp_fsf_class_not_supp(req);
+		break;
+	case FSF_ACCESS_DENIED:
+		zfcp_cfdc_lun_denied(sdev, &header->fsf_status_qual);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_DIRECTION_INDICATOR_NOT_VALID:
+		dev_err(&req->adapter->ccw_device->dev,
+			"Incorrect direction %d, LUN 0x%016Lx on port "
+			"0x%016Lx closed\n",
+			req->qtcb->bottom.io.data_direction,
+			(unsigned long long)zfcp_scsi_dev_lun(sdev),
+			(unsigned long long)zfcp_sdev->port->wwpn);
+		zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
+					  "fssfch3", req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_CMND_LENGTH_NOT_VALID:
+		dev_err(&req->adapter->ccw_device->dev,
+			"Incorrect CDB length %d, LUN 0x%016Lx on "
+			"port 0x%016Lx closed\n",
+			req->qtcb->bottom.io.fcp_cmnd_length,
+			(unsigned long long)zfcp_scsi_dev_lun(sdev),
+			(unsigned long long)zfcp_sdev->port->wwpn);
+		zfcp_erp_adapter_shutdown(zfcp_sdev->port->adapter, 0,
+					  "fssfch4", req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_PORT_BOXED:
+		zfcp_erp_set_port_status(zfcp_sdev->port,
+					 ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_port_reopen(zfcp_sdev->port,
+				     ZFCP_STATUS_COMMON_ERP_FAILED, "fssfch5",
+				     req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_LUN_BOXED:
+		zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_ACCESS_BOXED);
+		zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
+				    "fssfch6", req);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	case FSF_ADAPTER_STATUS_AVAILABLE:
+		if (header->fsf_status_qual.word[0] ==
+		    FSF_SQ_INVOKE_LINK_TEST_PROCEDURE)
+			zfcp_fc_test_link(zfcp_sdev->port);
+		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
+		break;
+	}
+}
+
+static void zfcp_fsf_fcp_cmnd_handler(struct zfcp_fsf_req *req)
 {
 	struct scsi_cmnd *scpnt;
 	struct fcp_resp_with_ext *fcp_rsp;
 	unsigned long flags;
 
+	zfcp_fsf_fcp_handler_common(req);
+
 	read_lock_irqsave(&req->adapter->abort_lock, flags);
 
 	scpnt = req->data;
@@ -2125,97 +2120,6 @@ skip_fsfstatus:
 	read_unlock_irqrestore(&req->adapter->abort_lock, flags);
 }
 
-static void zfcp_fsf_send_fcp_ctm_handler(struct zfcp_fsf_req *req)
-{
-	struct fcp_resp_with_ext *fcp_rsp;
-	struct fcp_resp_rsp_info *rsp_info;
-
-	fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
-	rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
-
-	if ((rsp_info->rsp_code != FCP_TMF_CMPL) ||
-	     (req->status & ZFCP_STATUS_FSFREQ_ERROR))
-		req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED;
-}
-
-
-static void zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *req)
-{
-	struct zfcp_unit *unit;
-	struct fsf_qtcb_header *header = &req->qtcb->header;
-
-	if (unlikely(req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT))
-		unit = req->data;
-	else
-		unit = req->unit;
-
-	if (unlikely(req->status & ZFCP_STATUS_FSFREQ_ERROR))
-		goto skip_fsfstatus;
-
-	switch (header->fsf_status) {
-	case FSF_HANDLE_MISMATCH:
-	case FSF_PORT_HANDLE_NOT_VALID:
-		zfcp_erp_adapter_reopen(unit->port->adapter, 0, "fssfch1", req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_FCPLUN_NOT_VALID:
-	case FSF_LUN_HANDLE_NOT_VALID:
-		zfcp_erp_port_reopen(unit->port, 0, "fssfch2", req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_SERVICE_CLASS_NOT_SUPPORTED:
-		zfcp_fsf_class_not_supp(req);
-		break;
-	case FSF_ACCESS_DENIED:
-		zfcp_fsf_access_denied_unit(req, unit);
-		break;
-	case FSF_DIRECTION_INDICATOR_NOT_VALID:
-		dev_err(&req->adapter->ccw_device->dev,
-			"Incorrect direction %d, unit 0x%016Lx on port "
-			"0x%016Lx closed\n",
-			req->qtcb->bottom.io.data_direction,
-			(unsigned long long)unit->fcp_lun,
-			(unsigned long long)unit->port->wwpn);
-		zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch3",
-					  req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_CMND_LENGTH_NOT_VALID:
-		dev_err(&req->adapter->ccw_device->dev,
-			"Incorrect CDB length %d, unit 0x%016Lx on "
-			"port 0x%016Lx closed\n",
-			req->qtcb->bottom.io.fcp_cmnd_length,
-			(unsigned long long)unit->fcp_lun,
-			(unsigned long long)unit->port->wwpn);
-		zfcp_erp_adapter_shutdown(unit->port->adapter, 0, "fssfch4",
-					  req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_PORT_BOXED:
-		zfcp_erp_port_boxed(unit->port, "fssfch5", req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_LUN_BOXED:
-		zfcp_erp_unit_boxed(unit, "fssfch6", req);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	case FSF_ADAPTER_STATUS_AVAILABLE:
-		if (header->fsf_status_qual.word[0] ==
-		    FSF_SQ_INVOKE_LINK_TEST_PROCEDURE)
-			zfcp_fc_test_link(unit->port);
-		req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-		break;
-	}
-skip_fsfstatus:
-	if (req->status & ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT)
-		zfcp_fsf_send_fcp_ctm_handler(req);
-	else {
-		zfcp_fsf_send_fcp_command_task_handler(req);
-		req->unit = NULL;
-		put_device(&unit->dev);
-	}
-}
-
 static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir)
 {
 	switch (scsi_get_prot_op(scsi_cmnd)) {
@@ -2255,22 +2159,22 @@ static int zfcp_fsf_set_data_dir(struct scsi_cmnd *scsi_cmnd, u32 *data_dir)
 }
 
 /**
- * zfcp_fsf_send_fcp_command_task - initiate an FCP command (for a SCSI command)
- * @unit: unit where command is sent to
+ * zfcp_fsf_fcp_cmnd - initiate an FCP command (for a SCSI command)
  * @scsi_cmnd: scsi command to be sent
  */
-int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
-				   struct scsi_cmnd *scsi_cmnd)
+int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd)
 {
 	struct zfcp_fsf_req *req;
 	struct fcp_cmnd *fcp_cmnd;
 	unsigned int sbtype = SBAL_FLAGS0_TYPE_READ;
 	int real_bytes, retval = -EIO, dix_bytes = 0;
-	struct zfcp_adapter *adapter = unit->port->adapter;
+	struct scsi_device *sdev = scsi_cmnd->device;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
 	struct zfcp_qdio *qdio = adapter->qdio;
 	struct fsf_qtcb_bottom_io *io;
 
-	if (unlikely(!(atomic_read(&unit->status) &
+	if (unlikely(!(atomic_read(&zfcp_sdev->status) &
 		       ZFCP_STATUS_COMMON_UNBLOCKED)))
 		return -EBUSY;
 
@@ -2295,11 +2199,10 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
 
 	io = &req->qtcb->bottom.io;
 	req->status |= ZFCP_STATUS_FSFREQ_CLEANUP;
-	req->unit = unit;
 	req->data = scsi_cmnd;
-	req->handler = zfcp_fsf_send_fcp_command_handler;
-	req->qtcb->header.lun_handle = unit->handle;
-	req->qtcb->header.port_handle = unit->port->handle;
+	req->handler = zfcp_fsf_fcp_cmnd_handler;
+	req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
+	req->qtcb->header.port_handle = zfcp_sdev->port->handle;
 	io->service_class = FSF_CLASS_3;
 	io->fcp_cmnd_length = FCP_CMND_LEN;
 
@@ -2310,8 +2213,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
 
 	zfcp_fsf_set_data_dir(scsi_cmnd, &io->data_direction);
 
-	get_device(&unit->dev);
-
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
 	zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd);
 
@@ -2338,7 +2239,6 @@ int zfcp_fsf_send_fcp_command_task(struct zfcp_unit *unit,
 	goto out;
 
 failed_scsi_cmnd:
-	put_device(&unit->dev);
 	zfcp_fsf_req_free(req);
 	scsi_cmnd->host_scribble = NULL;
 out:
@@ -2346,23 +2246,40 @@ out:
 	return retval;
 }
 
+static void zfcp_fsf_fcp_task_mgmt_handler(struct zfcp_fsf_req *req)
+{
+	struct fcp_resp_with_ext *fcp_rsp;
+	struct fcp_resp_rsp_info *rsp_info;
+
+	zfcp_fsf_fcp_handler_common(req);
+
+	fcp_rsp = (struct fcp_resp_with_ext *) &req->qtcb->bottom.io.fcp_rsp;
+	rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1];
+
+	if ((rsp_info->rsp_code != FCP_TMF_CMPL) ||
+	     (req->status & ZFCP_STATUS_FSFREQ_ERROR))
+		req->status |= ZFCP_STATUS_FSFREQ_TMFUNCFAILED;
+}
+
 /**
- * zfcp_fsf_send_fcp_ctm - send SCSI task management command
- * @unit: pointer to struct zfcp_unit
+ * zfcp_fsf_fcp_task_mgmt - send SCSI task management command
+ * @scmnd: SCSI command to send the task management command for
  * @tm_flags: unsigned byte for task management flags
  * Returns: on success pointer to struct fsf_req, NULL otherwise
  */
-struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
+struct zfcp_fsf_req *zfcp_fsf_fcp_task_mgmt(struct scsi_cmnd *scmnd,
+					    u8 tm_flags)
 {
 	struct zfcp_fsf_req *req = NULL;
 	struct fcp_cmnd *fcp_cmnd;
-	struct zfcp_qdio *qdio = unit->port->adapter->qdio;
+	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(scmnd->device);
+	struct zfcp_qdio *qdio = zfcp_sdev->port->adapter->qdio;
 
-	if (unlikely(!(atomic_read(&unit->status) &
+	if (unlikely(!(atomic_read(&zfcp_sdev->status) &
 		       ZFCP_STATUS_COMMON_UNBLOCKED)))
 		return NULL;
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -2376,10 +2293,10 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
 	}
 
 	req->status |= ZFCP_STATUS_FSFREQ_TASK_MANAGEMENT;
-	req->data = unit;
-	req->handler = zfcp_fsf_send_fcp_command_handler;
-	req->qtcb->header.lun_handle = unit->handle;
-	req->qtcb->header.port_handle = unit->port->handle;
+	req->data = scmnd;
+	req->handler = zfcp_fsf_fcp_task_mgmt_handler;
+	req->qtcb->header.lun_handle = zfcp_sdev->lun_handle;
+	req->qtcb->header.port_handle = zfcp_sdev->port->handle;
 	req->qtcb->bottom.io.data_direction = FSF_DATADIR_CMND;
 	req->qtcb->bottom.io.service_class = FSF_CLASS_3;
 	req->qtcb->bottom.io.fcp_cmnd_length = FCP_CMND_LEN;
@@ -2387,7 +2304,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
 	zfcp_qdio_set_sbale_last(qdio, &req->qdio_req);
 
 	fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd;
-	zfcp_fc_fcp_tm(fcp_cmnd, unit->device, tm_flags);
+	zfcp_fc_fcp_tm(fcp_cmnd, scmnd->device, tm_flags);
 
 	zfcp_fsf_start_timer(req, ZFCP_SCSI_ER_TIMEOUT);
 	if (!zfcp_fsf_req_send(req))
@@ -2396,7 +2313,7 @@ struct zfcp_fsf_req *zfcp_fsf_send_fcp_ctm(struct zfcp_unit *unit, u8 tm_flags)
 	zfcp_fsf_req_free(req);
 	req = NULL;
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 	return req;
 }
 
@@ -2432,7 +2349,7 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
 		return ERR_PTR(-EINVAL);
 	}
 
-	spin_lock_bh(&qdio->req_q_lock);
+	spin_lock_irq(&qdio->req_q_lock);
 	if (zfcp_qdio_sbal_get(qdio))
 		goto out;
 
@@ -2459,7 +2376,7 @@ struct zfcp_fsf_req *zfcp_fsf_control_file(struct zfcp_adapter *adapter,
 	zfcp_fsf_start_timer(req, ZFCP_FSF_REQUEST_TIMEOUT);
 	retval = zfcp_fsf_req_send(req);
 out:
-	spin_unlock_bh(&qdio->req_q_lock);
+	spin_unlock_irq(&qdio->req_q_lock);
 
 	if (!retval) {
 		wait_for_completion(&req->completion);