[SCSI] zfcp: Move ACL/CFDC code to zfcp_cfdc.c

Move the code evaluating the ACL/CFDC specific errors to the file
zfcp_cfdc.c. With this change, all code related to the old access
control feature is kept in one file, not split across zfcp_erp.c and
zfcp_fsf.c.

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

4 files changed, 207 insertions, 202 deletions

diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index fcbd2b756da4..f952b89b108a 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -2,9 +2,10 @@
  * zfcp device driver
  *
  * Userspace interface for accessing the
- * Access Control Lists / Control File Data Channel
+ * Access Control Lists / Control File Data Channel;
+ * handling of response code and states for ports and LUNs.
  *
- * Copyright IBM Corporation 2008, 2009
+ * Copyright IBM Corporation 2008, 2010
  */
 
 #define KMSG_COMPONENT "zfcp"
@@ -260,3 +261,184 @@ struct miscdevice zfcp_cfdc_misc = {
         .name = "zfcp_cfdc",
         .fops = &zfcp_cfdc_fops,
 };
+
+/**
+ * zfcp_cfdc_adapter_access_changed - Process change in adapter ACT
+ * @adapter: Adapter where the Access Control Table (ACT) changed
+ *
+ * After a change in the adapter ACT, check if access to any
+ * previously denied resources is now possible.
+ */
+void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *adapter)
+{
+        unsigned long flags;
+        struct zfcp_port *port;
+        struct scsi_device *sdev;
+        struct zfcp_scsi_dev *zfcp_sdev;
+        int status;
+
+        if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
+                return;
+
+        read_lock_irqsave(&adapter->port_list_lock, flags);
+        list_for_each_entry(port, &adapter->port_list, list) {
+                status = atomic_read(&port->status);
+                if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
+                    (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
+                        zfcp_erp_port_reopen(port,
+                                             ZFCP_STATUS_COMMON_ERP_FAILED,
+                                             "cfaac_1", NULL);
+        }
+        read_unlock_irqrestore(&adapter->port_list_lock, flags);
+
+        shost_for_each_device(sdev, port->adapter->scsi_host) {
+                zfcp_sdev = sdev_to_zfcp(sdev);
+                status = atomic_read(&zfcp_sdev->status);
+                if ((status & ZFCP_STATUS_COMMON_ACCESS_DENIED) ||
+                    (status & ZFCP_STATUS_COMMON_ACCESS_BOXED))
+                        zfcp_erp_lun_reopen(sdev,
+                                            ZFCP_STATUS_COMMON_ERP_FAILED,
+                                            "cfaac_2", NULL);
+        }
+}
+
+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);
+}
+
+/**
+ * zfcp_cfdc_port_denied - Process "access denied" for port
+ * @port: The port where the acces has been denied
+ * @qual: The FSF status qualifier for the access denied FSF status
+ */
+void zfcp_cfdc_port_denied(struct zfcp_port *port,
+                           union fsf_status_qual *qual)
+{
+        dev_warn(&port->adapter->ccw_device->dev,
+                 "Access denied to port 0x%016Lx\n",
+                 (unsigned long long)port->wwpn);
+
+        zfcp_act_eval_err(port->adapter, qual->halfword[0]);
+        zfcp_act_eval_err(port->adapter, qual->halfword[1]);
+        zfcp_erp_modify_port_status(port, "cfadp_1", NULL,
+                                    ZFCP_STATUS_COMMON_ERP_FAILED |
+                                    ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
+}
+
+/**
+ * zfcp_cfdc_lun_denied - Process "access denied" for LUN
+ * @sdev: The SCSI device / LUN where the access has been denied
+ * @qual: The FSF status qualifier for the access denied FSF status
+ */
+void zfcp_cfdc_lun_denied(struct scsi_device *sdev,
+                          union fsf_status_qual *qual)
+{
+        struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+
+        dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
+                 "Access denied to LUN 0x%016Lx on port 0x%016Lx\n",
+                 zfcp_scsi_dev_lun(sdev),
+                 (unsigned long long)zfcp_sdev->port->wwpn);
+        zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[0]);
+        zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->halfword[1]);
+        zfcp_erp_modify_lun_status(sdev, "cfadl_1", NULL,
+                                   ZFCP_STATUS_COMMON_ERP_FAILED |
+                                   ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
+
+        atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
+        atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
+}
+
+/**
+ * zfcp_cfdc_lun_shrng_vltn - Evaluate LUN sharing violation status
+ * @sdev: The LUN / SCSI device where sharing violation occurred
+ * @qual: The FSF status qualifier from the LUN sharing violation
+ */
+void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *sdev,
+                              union fsf_status_qual *qual)
+{
+        struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+
+        if (qual->word[0])
+                dev_warn(&zfcp_sdev->port->adapter->ccw_device->dev,
+                         "LUN 0x%Lx on port 0x%Lx is already in "
+                         "use by CSS%d, MIF Image ID %x\n",
+                         zfcp_scsi_dev_lun(sdev),
+                         (unsigned long long)zfcp_sdev->port->wwpn,
+                         qual->fsf_queue_designator.cssid,
+                         qual->fsf_queue_designator.hla);
+        else
+                zfcp_act_eval_err(zfcp_sdev->port->adapter, qual->word[2]);
+
+        zfcp_erp_modify_lun_status(sdev, "fsosh_3", NULL,
+                                   ZFCP_STATUS_COMMON_ERP_FAILED |
+                                   ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
+        atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
+        atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
+}
+
+/**
+ * zfcp_cfdc_open_lun_eval - Eval access ctrl. status for successful "open lun"
+ * @sdev: The SCSI device / LUN where to evaluate the status
+ * @bottom: The qtcb bottom with the status from the "open lun"
+ *
+ * Returns: 0 if LUN is usable, -EACCES if the access control table
+ *          reports an unsupported configuration.
+ */
+int zfcp_cfdc_open_lun_eval(struct scsi_device *sdev,
+                            struct fsf_qtcb_bottom_support *bottom)
+{
+        int shared, rw;
+        struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
+        struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
+
+        if ((adapter->connection_features & FSF_FEATURE_NPIV_MODE) ||
+            !(adapter->adapter_features & FSF_FEATURE_LUN_SHARING) ||
+            zfcp_ccw_priv_sch(adapter))
+                return 0;
+
+        shared = !(bottom->lun_access_info & FSF_UNIT_ACCESS_EXCLUSIVE);
+        rw = (bottom->lun_access_info & FSF_UNIT_ACCESS_OUTBOUND_TRANSFER);
+
+        if (shared)
+                atomic_set_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
+
+        if (!rw) {
+                atomic_set_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->status);
+                dev_info(&adapter->ccw_device->dev, "SCSI device at LUN "
+                         "0x%016Lx on port 0x%016Lx opened read-only\n",
+                         zfcp_scsi_dev_lun(sdev),
+                         (unsigned long long)zfcp_sdev->port->wwpn);
+        }
+
+        if (!shared && !rw) {
+                dev_err(&adapter->ccw_device->dev, "Exclusive read-only access "
+                        "not supported (LUN 0x%016Lx, port 0x%016Lx)\n",
+                        zfcp_scsi_dev_lun(sdev),
+                        (unsigned long long)zfcp_sdev->port->wwpn);
+                zfcp_erp_lun_failed(sdev, "fsosh_5", NULL);
+                zfcp_erp_lun_shutdown(sdev, 0, "fsouh_6", NULL);
+                return -EACCES;
+        }
+
+        if (shared && rw) {
+                dev_err(&adapter->ccw_device->dev,
+                        "Shared read-write access not supported "
+                        "(LUN 0x%016Lx, port 0x%016Lx)\n",
+                        zfcp_scsi_dev_lun(sdev),
+                        (unsigned long long)zfcp_sdev->port->wwpn);
+                zfcp_erp_lun_failed(sdev, "fsosh_7", NULL);
+                zfcp_erp_lun_shutdown(sdev, 0, "fsosh_8", NULL);
+                return -EACCES;
+        }
+
+        return 0;
+}
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 734fc838931f..9e7d029ac7a2 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1593,85 +1593,3 @@ void zfcp_erp_lun_boxed(struct scsi_device *sdev, char *id, void *ref)
                                    ZFCP_STATUS_COMMON_ACCESS_BOXED, ZFCP_SET);
         zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
 }
-
-/**
- * zfcp_erp_port_access_denied - Adapter denied access to port.
- * @port: port where access has been denied
- * @id: id for debug trace
- * @ref: reference for debug trace
- *
- * Since the adapter has denied access, stop using the port and the
- * attached LUNs.
- */
-void zfcp_erp_port_access_denied(struct zfcp_port *port, char *id, void *ref)
-{
-        zfcp_erp_modify_port_status(port, id, ref,
-                                    ZFCP_STATUS_COMMON_ERP_FAILED |
-                                    ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
-}
-
-/**
- * zfcp_erp_lun_access_denied - Adapter denied access to LUN.
- * @sdev: SCSI device / LUN where access has been denied
- * @id: id for debug trace
- * @ref: reference for debug trace
- *
- * Since the adapter has denied access, stop using the LUN.
- */
-void zfcp_erp_lun_access_denied(struct scsi_device *sdev, char *id, void *ref)
-{
-        zfcp_erp_modify_lun_status(sdev, id, ref,
-                                   ZFCP_STATUS_COMMON_ERP_FAILED |
-                                   ZFCP_STATUS_COMMON_ACCESS_DENIED, ZFCP_SET);
-}
-
-static void zfcp_erp_lun_access_changed(struct scsi_device *sdev, char *id,
-                                        void *ref)
-{
-        struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-        int status = atomic_read(&zfcp_sdev->status);
-
-        if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
-                        ZFCP_STATUS_COMMON_ACCESS_BOXED)))
-                return;
-
-        zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
-}
-
-static void zfcp_erp_port_access_changed(struct zfcp_port *port, char *id,
-                                         void *ref)
-{
-        struct scsi_device *sdev;
-        int status = atomic_read(&port->status);
-
-        if (!(status & (ZFCP_STATUS_COMMON_ACCESS_DENIED |
-                        ZFCP_STATUS_COMMON_ACCESS_BOXED))) {
-                shost_for_each_device(sdev, port->adapter->scsi_host)
-                        if (sdev_to_zfcp(sdev)->port == port)
-                                zfcp_erp_lun_access_changed(sdev, id, ref);
-                return;
-        }
-
-        zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, id, ref);
-}
-
-/**
- * zfcp_erp_adapter_access_changed - Process change in adapter ACT
- * @adapter: Adapter where the Access Control Table (ACT) changed
- * @id: Id for debug trace
- * @ref: Reference for debug trace
- */
-void zfcp_erp_adapter_access_changed(struct zfcp_adapter *adapter, char *id,
-                                     void *ref)
-{
-        unsigned long flags;
-        struct zfcp_port *port;
-
-        if (adapter->connection_features & FSF_FEATURE_NPIV_MODE)
-                return;
-
-        read_lock_irqsave(&adapter->port_list_lock, flags);
-        list_for_each_entry(port, &adapter->port_list, list)
-                zfcp_erp_port_access_changed(port, id, ref);
-        read_unlock_irqrestore(&adapter->port_list_lock, flags);
-}
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index 80714679f5d6..7320132a430c 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -34,6 +34,14 @@ extern void zfcp_ccw_adapter_put(struct zfcp_adapter *);
 
 /* zfcp_cfdc.c */
 extern struct miscdevice zfcp_cfdc_misc;
+extern void zfcp_cfdc_port_denied(struct zfcp_port *, union fsf_status_qual *);
+extern void zfcp_cfdc_lun_denied(struct scsi_device *, union fsf_status_qual *);
+extern void zfcp_cfdc_lun_shrng_vltn(struct scsi_device *,
+                                     union fsf_status_qual *);
+extern int zfcp_cfdc_open_lun_eval(struct scsi_device *,
+                                   struct fsf_qtcb_bottom_support *);
+extern void zfcp_cfdc_adapter_access_changed(struct zfcp_adapter *);
+
 
 /* zfcp_dbf.c */
 extern int zfcp_dbf_adapter_register(struct zfcp_adapter *);
@@ -88,10 +96,6 @@ extern void zfcp_erp_wait(struct zfcp_adapter *);
 extern void zfcp_erp_notify(struct zfcp_erp_action *, unsigned long);
 extern void zfcp_erp_port_boxed(struct zfcp_port *, char *, void *);
 extern void zfcp_erp_lun_boxed(struct scsi_device *, char *, void *);
-extern void zfcp_erp_port_access_denied(struct zfcp_port *, char *, void *);
-extern void zfcp_erp_lun_access_denied(struct scsi_device *, char *, void *);
-extern void zfcp_erp_adapter_access_changed(struct zfcp_adapter *, char *,
-                                            void *);
 extern void zfcp_erp_timeout_handler(unsigned long);
 
 /* zfcp_fc.c */
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 2b9dfea9f254..813c5b22565b 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -61,47 +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_lun(struct zfcp_fsf_req *req,
-                                       struct scsi_device *sdev)
-{
-        struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);
-
-        struct fsf_qtcb_header *header = &req->qtcb->header;
-        dev_warn(&req->adapter->ccw_device->dev,
-                 "Access denied to LUN 0x%016Lx on port 0x%016Lx\n",
-                 (unsigned long long)zfcp_scsi_dev_lun(sdev),
-                 (unsigned long long)zfcp_sdev->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_lun_access_denied(sdev, "fsadl_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 "
@@ -295,13 +254,12 @@ 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];
@@ -1116,8 +1074,10 @@ 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 */
@@ -1375,7 +1335,8 @@ 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,
@@ -1682,7 +1643,7 @@ 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
@@ -1768,9 +1729,6 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
         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;
@@ -1789,29 +1747,15 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
         case FSF_LUN_ALREADY_OPEN:
                 break;
         case FSF_ACCESS_DENIED:
-                zfcp_fsf_access_denied_lun(req, sdev);
-                atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
-                atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->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(zfcp_sdev->port, "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)zfcp_scsi_dev_lun(sdev),
-                                 (unsigned long long)zfcp_sdev->port->wwpn,
-                                 queue_designator->cssid,
-                                 queue_designator->hla);
-                else
-                        zfcp_act_eval_err(adapter,
-                                          header->fsf_status_qual.word[2]);
-                zfcp_erp_lun_access_denied(sdev, "fsolh_3", req);
-                atomic_clear_mask(ZFCP_STATUS_LUN_SHARED, &zfcp_sdev->status);
-                atomic_clear_mask(ZFCP_STATUS_LUN_READONLY, &zfcp_sdev->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:
@@ -1839,51 +1783,7 @@ static void zfcp_fsf_open_lun_handler(struct zfcp_fsf_req *req)
         case FSF_GOOD:
                 zfcp_sdev->lun_handle = header->lun_handle;
                 atomic_set_mask(ZFCP_STATUS_COMMON_OPEN, &zfcp_sdev->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_LUN_SHARED,
-                                                &zfcp_sdev->status);
-
-                        if (!readwrite) {
-                                atomic_set_mask(ZFCP_STATUS_LUN_READONLY,
-                                                &zfcp_sdev->status);
-                                dev_info(&adapter->ccw_device->dev,
-                                         "SCSI device at LUN 0x%016Lx on port "
-                                         "0x%016Lx opened read-only\n",
-                                    (unsigned long long)zfcp_scsi_dev_lun(sdev),
-                                    (unsigned long long)zfcp_sdev->port->wwpn);
-                        }
-
-                        if (exclusive && !readwrite) {
-                                dev_err(&adapter->ccw_device->dev,
-                                        "Exclusive read-only access not "
-                                        "supported (LUN 0x%016Lx, "
-                                        "port 0x%016Lx)\n",
-                                    (unsigned long long)zfcp_scsi_dev_lun(sdev),
-                                    (unsigned long long)zfcp_sdev->port->wwpn);
-                                zfcp_erp_lun_failed(sdev, "fsolh_5", req);
-                                req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-                                zfcp_erp_lun_shutdown(sdev, 0, "fsolh_6", req);
-                        } else if (!exclusive && readwrite) {
-                                dev_err(&adapter->ccw_device->dev,
-                                        "Shared read-write access not "
-                                        "supported (LUN 0x%016Lx, port "
-                                        "0x%016Lx)\n",
-                                    (unsigned long long)zfcp_scsi_dev_lun(sdev),
-                                    (unsigned long long)zfcp_sdev->port->wwpn);
-                                zfcp_erp_lun_failed(sdev, "fsolh_7", req);
-                                req->status |= ZFCP_STATUS_FSFREQ_ERROR;
-                                zfcp_erp_lun_shutdown(sdev, 0, "fsolh_8", req);
-                        }
-                }
+                zfcp_cfdc_open_lun_eval(sdev, bottom);
                 break;
         }
 }
@@ -2106,7 +2006,8 @@ static void zfcp_fsf_fcp_handler_common(struct zfcp_fsf_req *req)
                 zfcp_fsf_class_not_supp(req);
                 break;
         case FSF_ACCESS_DENIED:
-                zfcp_fsf_access_denied_lun(req, sdev);
+                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,