17 files changed, 132 insertions, 172 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index d0647d116eaa..79ffef6bfaf8 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -203,6 +203,7 @@ dasd_state_basic_to_known(struct dasd_device * device)
         rc = dasd_flush_ccw_queue(device, 1);
         if (rc)
                 return rc;
+        dasd_clear_timer(device);
 
         DBF_DEV_EVENT(DBF_EMERG, device, "%p debug area deleted", device);
         if (device->debug_area != NULL) {
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 4362ff260244..b9b0fc3f812b 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -73,12 +73,15 @@ static inline struct mon_buf *monwrite_find_hdr(struct mon_private *monpriv,
         struct mon_buf *entry, *next;
 
         list_for_each_entry_safe(entry, next, &monpriv->list, list)
-                if (entry->hdr.applid == monhdr->applid &&
+                if ((entry->hdr.mon_function == monhdr->mon_function ||
+                     monhdr->mon_function == MONWRITE_STOP_INTERVAL) &&
+                    entry->hdr.applid == monhdr->applid &&
                     entry->hdr.record_num == monhdr->record_num &&
                     entry->hdr.version == monhdr->version &&
                     entry->hdr.release == monhdr->release &&
                     entry->hdr.mod_level == monhdr->mod_level)
                         return entry;
+
         return NULL;
 }
 
@@ -92,7 +95,9 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
             monhdr->mon_function > MONWRITE_START_CONFIG ||
             monhdr->hdrlen != sizeof(struct monwrite_hdr))
                 return -EINVAL;
-        monbuf = monwrite_find_hdr(monpriv, monhdr);
+        monbuf = NULL;
+        if (monhdr->mon_function != MONWRITE_GEN_EVENT)
+                monbuf = monwrite_find_hdr(monpriv, monhdr);
         if (monbuf) {
                 if (monhdr->mon_function == MONWRITE_STOP_INTERVAL) {
                         monhdr->datalen = monbuf->hdr.datalen;
@@ -104,13 +109,13 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
                         kfree(monbuf);
                         monbuf = NULL;
                 }
-        } else {
+        } else if (monhdr->mon_function != MONWRITE_STOP_INTERVAL) {
                 if (mon_buf_count >= mon_max_bufs)
                         return -ENOSPC;
                 monbuf = kzalloc(sizeof(struct mon_buf), GFP_KERNEL);
                 if (!monbuf)
                         return -ENOMEM;
-                monbuf->data = kzalloc(monbuf->hdr.datalen,
+                monbuf->data = kzalloc(monhdr->datalen,
                                        GFP_KERNEL | GFP_DMA);
                 if (!monbuf->data) {
                         kfree(monbuf);
@@ -118,7 +123,8 @@ static int monwrite_new_hdr(struct mon_private *monpriv)
                 }
                 monbuf->hdr = *monhdr;
                 list_add_tail(&monbuf->list, &monpriv->list);
-                mon_buf_count++;
+                if (monhdr->mon_function != MONWRITE_GEN_EVENT)
+                        mon_buf_count++;
         }
         monpriv->current_buf = monbuf;
         return 0;
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 07c7f19339d2..2d78f0f4a40f 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -370,7 +370,7 @@ __s390_process_res_acc(struct subchannel_id schid, void *data)
         struct res_acc_data *res_data;
         struct subchannel *sch;
 
-        res_data = (struct res_acc_data *)data;
+        res_data = data;
         sch = get_subchannel_by_schid(schid);
         if (!sch)
                 /* Check if a subchannel is newly available. */
@@ -444,7 +444,7 @@ __get_chpid_from_lir(void *data)
                 u32 isinfo[28];
         } *lir;
 
-        lir = (struct lir*) data;
+        lir = data;
         if (!(lir->iq&0x80))
                 /* NULL link incident record */
                 return -EINVAL;
@@ -628,7 +628,7 @@ __chp_add(struct subchannel_id schid, void *data)
         struct channel_path *chp;
         struct subchannel *sch;
 
-        chp = (struct channel_path *)data;
+        chp = data;
         sch = get_subchannel_by_schid(schid);
         if (!sch)
                 /* Check if the subchannel is now available. */
@@ -707,8 +707,7 @@ chp_process_crw(int chpid, int on)
         return chp_add(chpid);
 }
 
-static inline int
-__check_for_io_and_kill(struct subchannel *sch, int index)
+static inline int check_for_io_on_path(struct subchannel *sch, int index)
 {
         int cc;
 
@@ -718,10 +717,8 @@ __check_for_io_and_kill(struct subchannel *sch, int index)
         cc = stsch(sch->schid, &sch->schib);
         if (cc)
                 return 0;
-        if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == (0x80 >> index)) {
-                device_set_waiting(sch);
+        if (sch->schib.scsw.actl && sch->schib.pmcw.lpum == (0x80 >> index))
                 return 1;
-        }
         return 0;
 }
 
@@ -750,12 +747,10 @@ __s390_subchannel_vary_chpid(struct subchannel *sch, __u8 chpid, int on)
                 } else {
                         sch->opm &= ~(0x80 >> chp);
                         sch->lpm &= ~(0x80 >> chp);
-                        /*
-                         * Give running I/O a grace period in which it
-                         * can successfully terminate, even using the
-                         * just varied off path. Then kill it.
-                         */
-                        if (!__check_for_io_and_kill(sch, chp) && !sch->lpm) {
+                        if (check_for_io_on_path(sch, chp))
+                                /* Path verification is done after killing. */
+                                device_kill_io(sch);
+                        else if (!sch->lpm) {
                                 if (css_enqueue_subchannel_slow(sch->schid)) {
                                         css_clear_subchannel_slow_list();
                                         need_rescan = 1;
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index f18b1623cad7..8936e460a807 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -609,8 +609,8 @@ do_IRQ (struct pt_regs *regs)
         struct irb *irb;
         struct pt_regs *old_regs;
 
-        irq_enter ();
         old_regs = set_irq_regs(regs);
+        irq_enter();
         asm volatile ("mc 0,0");
         if (S390_lowcore.int_clock >= S390_lowcore.jiffy_timer)
                 /**
@@ -655,8 +655,8 @@ do_IRQ (struct pt_regs *regs)
                  * out of the sie which costs more cycles than it saves.
                  */
         } while (!MACHINE_IS_VM && tpi (NULL) != 0);
+        irq_exit();
         set_irq_regs(old_regs);
-        irq_exit ();
 }
 
 #ifdef CONFIG_CCW_CONSOLE
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 7086a74e9871..ad7f7e1c0163 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -177,7 +177,7 @@ get_subchannel_by_schid(struct subchannel_id schid)
         struct device *dev;
 
         dev = bus_find_device(&css_bus_type, NULL,
-                              (void *)&schid, check_subchannel);
+                              &schid, check_subchannel);
 
         return dev ? to_subchannel(dev) : NULL;
 }
@@ -271,10 +271,6 @@ static int css_evaluate_known_subchannel(struct subchannel *sch, int slow)
                 /* Reset intparm to zeroes. */
                 sch->schib.pmcw.intparm = 0;
                 cio_modify(sch);
-
-                /* Probe if necessary. */
-                if (action == UNREGISTER_PROBE)
-                        ret = css_probe_device(sch->schid);
                 break;
         case REPROBE:
                 device_trigger_reprobe(sch);
@@ -283,6 +279,9 @@ static int css_evaluate_known_subchannel(struct subchannel *sch, int slow)
                 break;
         }
         spin_unlock_irqrestore(&sch->lock, flags);
+        /* Probe if necessary. */
+        if (action == UNREGISTER_PROBE)
+                ret = css_probe_device(sch->schid);
 
         return ret;
 }
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 8aabb4adeb5f..4c2ff8336288 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -76,9 +76,8 @@ struct ccw_device_private {
         int state;              /* device state */
         atomic_t onoff;
         unsigned long registered;
-        __u16 devno;            /* device number */
-        __u16 sch_no;           /* subchannel number */
-        __u8 ssid;              /* subchannel set id */
+        struct ccw_dev_id dev_id;       /* device id */
+        struct subchannel_id schid;     /* subchannel number */
         __u8 imask;             /* lpm mask for SNID/SID/SPGID */
         int iretry;             /* retry counter SNID/SID/SPGID */
         struct {
@@ -171,7 +170,7 @@ void device_trigger_reprobe(struct subchannel *);
 
 /* Helper functions for vary on/off. */
 int device_is_online(struct subchannel *);
-void device_set_waiting(struct subchannel *);
+void device_kill_io(struct subchannel *);
 
 /* Machine check helper function. */
 void device_kill_pending_timer(struct subchannel *);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 688945662c15..39c98f940507 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -532,8 +532,7 @@ device_remove_files(struct device *dev)
 
 /* this is a simple abstraction for device_register that sets the
  * correct bus type and adds the bus specific files */
-int
-ccw_device_register(struct ccw_device *cdev)
+static int ccw_device_register(struct ccw_device *cdev)
 {
         struct device *dev = &cdev->dev;
         int ret;
@@ -552,21 +551,19 @@ ccw_device_register(struct ccw_device *cdev)
 }
 
 struct match_data {
-        unsigned int devno;
-        unsigned int ssid;
+        struct ccw_dev_id dev_id;
         struct ccw_device * sibling;
 };
 
 static int
 match_devno(struct device * dev, void * data)
 {
-        struct match_data * d = (struct match_data *)data;
+        struct match_data * d = data;
         struct ccw_device * cdev;
 
         cdev = to_ccwdev(dev);
         if ((cdev->private->state == DEV_STATE_DISCONNECTED) &&
-            (cdev->private->devno == d->devno) &&
-            (cdev->private->ssid == d->ssid) &&
+            ccw_dev_id_is_equal(&cdev->private->dev_id, &d->dev_id) &&
             (cdev != d->sibling)) {
                 cdev->private->state = DEV_STATE_NOT_OPER;
                 return 1;
@@ -574,15 +571,13 @@ match_devno(struct device * dev, void * data)
         return 0;
 }
 
-static struct ccw_device *
-get_disc_ccwdev_by_devno(unsigned int devno, unsigned int ssid,
-                         struct ccw_device *sibling)
+static struct ccw_device * get_disc_ccwdev_by_dev_id(struct ccw_dev_id *dev_id,
+                                                     struct ccw_device *sibling)
 {
         struct device *dev;
         struct match_data data;
 
-        data.devno = devno;
-        data.ssid = ssid;
+        data.dev_id = *dev_id;
         data.sibling = sibling;
         dev = bus_find_device(&ccw_bus_type, NULL, &data, match_devno);
 
@@ -595,7 +590,7 @@ ccw_device_add_changed(void *data)
 
         struct ccw_device *cdev;
 
-        cdev = (struct ccw_device *)data;
+        cdev = data;
         if (device_add(&cdev->dev)) {
                 put_device(&cdev->dev);
                 return;
@@ -616,9 +611,9 @@ ccw_device_do_unreg_rereg(void *data)
         struct subchannel *sch;
         int need_rename;
 
-        cdev = (struct ccw_device *)data;
+        cdev = data;
         sch = to_subchannel(cdev->dev.parent);
-        if (cdev->private->devno != sch->schib.pmcw.dev) {
+        if (cdev->private->dev_id.devno != sch->schib.pmcw.dev) {
                 /*
                  * The device number has changed. This is usually only when
                  * a device has been detached under VM and then re-appeared
@@ -633,10 +628,12 @@ ccw_device_do_unreg_rereg(void *data)
                  *        get possibly sick...
                  */
                 struct ccw_device *other_cdev;
+                struct ccw_dev_id dev_id;
 
                 need_rename = 1;
-                other_cdev = get_disc_ccwdev_by_devno(sch->schib.pmcw.dev,
-                                                      sch->schid.ssid, cdev);
+                dev_id.devno = sch->schib.pmcw.dev;
+                dev_id.ssid = sch->schid.ssid;
+                other_cdev = get_disc_ccwdev_by_dev_id(&dev_id, cdev);
                 if (other_cdev) {
                         struct subchannel *other_sch;
 
@@ -652,7 +649,7 @@ ccw_device_do_unreg_rereg(void *data)
                 }
                 /* Update ssd info here. */
                 css_get_ssd_info(sch);
-                cdev->private->devno = sch->schib.pmcw.dev;
+                cdev->private->dev_id.devno = sch->schib.pmcw.dev;
         } else
                 need_rename = 0;
         device_remove_files(&cdev->dev);
@@ -662,7 +659,7 @@ ccw_device_do_unreg_rereg(void *data)
                 snprintf (cdev->dev.bus_id, BUS_ID_SIZE, "0.%x.%04x",
                           sch->schid.ssid, sch->schib.pmcw.dev);
         PREPARE_WORK(&cdev->private->kick_work,
-                     ccw_device_add_changed, (void *)cdev);
+                     ccw_device_add_changed, cdev);
         queue_work(ccw_device_work, &cdev->private->kick_work);
 }
 
@@ -687,7 +684,7 @@ io_subchannel_register(void *data)
         int ret;
         unsigned long flags;
 
-        cdev = (struct ccw_device *) data;
+        cdev = data;
         sch = to_subchannel(cdev->dev.parent);
 
         if (klist_node_attached(&cdev->dev.knode_parent)) {
@@ -759,7 +756,7 @@ io_subchannel_recog_done(struct ccw_device *cdev)
                         break;
                 sch = to_subchannel(cdev->dev.parent);
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_call_sch_unregister, (void *) cdev);
+                             ccw_device_call_sch_unregister, cdev);
                 queue_work(slow_path_wq, &cdev->private->kick_work);
                 if (atomic_dec_and_test(&ccw_device_init_count))
                         wake_up(&ccw_device_init_wq);
@@ -774,7 +771,7 @@ io_subchannel_recog_done(struct ccw_device *cdev)
                 if (!get_device(&cdev->dev))
                         break;
                 PREPARE_WORK(&cdev->private->kick_work,
-                             io_subchannel_register, (void *) cdev);
+                             io_subchannel_register, cdev);
                 queue_work(slow_path_wq, &cdev->private->kick_work);
                 break;
         }
@@ -792,9 +789,9 @@ io_subchannel_recog(struct ccw_device *cdev, struct subchannel *sch)
 
         /* Init private data. */
         priv = cdev->private;
-        priv->devno = sch->schib.pmcw.dev;
-        priv->ssid = sch->schid.ssid;
-        priv->sch_no = sch->schid.sch_no;
+        priv->dev_id.devno = sch->schib.pmcw.dev;
+        priv->dev_id.ssid = sch->schid.ssid;
+        priv->schid = sch->schid;
         priv->state = DEV_STATE_NOT_OPER;
         INIT_LIST_HEAD(&priv->cmb_list);
         init_waitqueue_head(&priv->wait_q);
@@ -912,7 +909,7 @@ io_subchannel_remove (struct subchannel *sch)
          */
         if (get_device(&cdev->dev)) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_unregister, (void *) cdev);
+                             ccw_device_unregister, cdev);
                 queue_work(ccw_device_work, &cdev->private->kick_work);
         }
         return 0;
@@ -1055,7 +1052,7 @@ __ccwdev_check_busid(struct device *dev, void *id)
 {
         char *bus_id;
 
-        bus_id = (char *)id;
+        bus_id = id;
 
         return (strncmp(bus_id, dev->bus_id, BUS_ID_SIZE) == 0);
 }
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index 00be9a5b4acd..9233b5c0bcc8 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -21,7 +21,6 @@ enum dev_state {
         /* states to wait for i/o completion before doing something */
         DEV_STATE_CLEAR_VERIFY,
         DEV_STATE_TIMEOUT_KILL,
-        DEV_STATE_WAIT4IO,
         DEV_STATE_QUIESCE,
         /* special states for devices gone not operational */
         DEV_STATE_DISCONNECTED,
@@ -79,7 +78,6 @@ void io_subchannel_recog_done(struct ccw_device *cdev);
 
 int ccw_device_cancel_halt_clear(struct ccw_device *);
 
-int ccw_device_register(struct ccw_device *);
 void ccw_device_do_unreg_rereg(void *);
 void ccw_device_call_sch_unregister(void *);
 
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index b67620208f36..de3d0857db9f 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -59,18 +59,6 @@ device_set_disconnected(struct subchannel *sch)
         cdev->private->state = DEV_STATE_DISCONNECTED;
 }
 
-void
-device_set_waiting(struct subchannel *sch)
-{
-        struct ccw_device *cdev;
-
-        if (!sch->dev.driver_data)
-                return;
-        cdev = sch->dev.driver_data;
-        ccw_device_set_timeout(cdev, 10*HZ);
-        cdev->private->state = DEV_STATE_WAIT4IO;
-}
-
 /*
  * Timeout function. It just triggers a DEV_EVENT_TIMEOUT.
  */
@@ -183,9 +171,9 @@ ccw_device_handle_oper(struct ccw_device *cdev)
             cdev->id.cu_model != cdev->private->senseid.cu_model ||
             cdev->id.dev_type != cdev->private->senseid.dev_type ||
             cdev->id.dev_model != cdev->private->senseid.dev_model ||
-            cdev->private->devno != sch->schib.pmcw.dev) {
+            cdev->private->dev_id.devno != sch->schib.pmcw.dev) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_do_unreg_rereg, (void *)cdev);
+                             ccw_device_do_unreg_rereg, cdev);
                 queue_work(ccw_device_work, &cdev->private->kick_work);
                 return 0;
         }
@@ -255,7 +243,7 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
         case DEV_STATE_NOT_OPER:
                 CIO_DEBUG(KERN_WARNING, 2,
                           "SenseID : unknown device %04x on subchannel "
-                          "0.%x.%04x\n", cdev->private->devno,
+                          "0.%x.%04x\n", cdev->private->dev_id.devno,
                           sch->schid.ssid, sch->schid.sch_no);
                 break;
         case DEV_STATE_OFFLINE:
@@ -282,14 +270,15 @@ ccw_device_recog_done(struct ccw_device *cdev, int state)
                 CIO_DEBUG(KERN_INFO, 2, "SenseID : device 0.%x.%04x reports: "
                           "CU  Type/Mod = %04X/%02X, Dev Type/Mod = "
                           "%04X/%02X\n",
-                          cdev->private->ssid, cdev->private->devno,
+                          cdev->private->dev_id.ssid,
+                          cdev->private->dev_id.devno,
                           cdev->id.cu_type, cdev->id.cu_model,
                           cdev->id.dev_type, cdev->id.dev_model);
                 break;
         case DEV_STATE_BOXED:
                 CIO_DEBUG(KERN_WARNING, 2,
                           "SenseID : boxed device %04x on subchannel "
-                          "0.%x.%04x\n", cdev->private->devno,
+                          "0.%x.%04x\n", cdev->private->dev_id.devno,
                           sch->schid.ssid, sch->schid.sch_no);
                 break;
         }
@@ -325,13 +314,13 @@ ccw_device_oper_notify(void *data)
         struct subchannel *sch;
         int ret;
 
-        cdev = (struct ccw_device *)data;
+        cdev = data;
         sch = to_subchannel(cdev->dev.parent);
         ret = (sch->driver && sch->driver->notify) ?
                 sch->driver->notify(&sch->dev, CIO_OPER) : 0;
         if (!ret)
                 /* Driver doesn't want device back. */
-                ccw_device_do_unreg_rereg((void *)cdev);
+                ccw_device_do_unreg_rereg(cdev);
         else {
                 /* Reenable channel measurements, if needed. */
                 cmf_reenable(cdev);
@@ -363,12 +352,12 @@ ccw_device_done(struct ccw_device *cdev, int state)
         if (state == DEV_STATE_BOXED)
                 CIO_DEBUG(KERN_WARNING, 2,
                           "Boxed device %04x on subchannel %04x\n",
-                          cdev->private->devno, sch->schid.sch_no);
+                          cdev->private->dev_id.devno, sch->schid.sch_no);
 
         if (cdev->private->flags.donotify) {
                 cdev->private->flags.donotify = 0;
                 PREPARE_WORK(&cdev->private->kick_work, ccw_device_oper_notify,
-                             (void *)cdev);
+                             cdev);
                 queue_work(ccw_device_notify_work, &cdev->private->kick_work);
         }
         wake_up(&cdev->private->wait_q);
@@ -412,7 +401,8 @@ static void __ccw_device_get_common_pgid(struct ccw_device *cdev)
                 /* PGID mismatch, can't pathgroup. */
                 CIO_MSG_EVENT(0, "SNID - pgid mismatch for device "
                               "0.%x.%04x, can't pathgroup\n",
-                              cdev->private->ssid, cdev->private->devno);
+                              cdev->private->dev_id.ssid,
+                              cdev->private->dev_id.devno);
                 cdev->private->options.pgroup = 0;
                 return;
         }
@@ -523,7 +513,7 @@ ccw_device_nopath_notify(void *data)
         struct subchannel *sch;
         int ret;
 
-        cdev = (struct ccw_device *)data;
+        cdev = data;
         sch = to_subchannel(cdev->dev.parent);
         /* Extra sanity. */
         if (sch->lpm)
@@ -537,7 +527,7 @@ ccw_device_nopath_notify(void *data)
                         if (get_device(&cdev->dev)) {
                                 PREPARE_WORK(&cdev->private->kick_work,
                                              ccw_device_call_sch_unregister,
-                                             (void *)cdev);
+                                             cdev);
                                 queue_work(ccw_device_work,
                                            &cdev->private->kick_work);
                         } else
@@ -588,11 +578,15 @@ ccw_device_verify_done(struct ccw_device *cdev, int err)
                 }
                 break;
         case -ETIME:
+                /* Reset oper notify indication after verify error. */
+                cdev->private->flags.donotify = 0;
                 ccw_device_done(cdev, DEV_STATE_BOXED);
                 break;
         default:
+                /* Reset oper notify indication after verify error. */
+                cdev->private->flags.donotify = 0;
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_nopath_notify, (void *)cdev);
+                             ccw_device_nopath_notify, cdev);
                 queue_work(ccw_device_notify_work, &cdev->private->kick_work);
                 ccw_device_done(cdev, DEV_STATE_NOT_OPER);
                 break;
@@ -723,7 +717,7 @@ ccw_device_offline_notoper(struct ccw_device *cdev, enum dev_event dev_event)
         sch = to_subchannel(cdev->dev.parent);
         if (get_device(&cdev->dev)) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_call_sch_unregister, (void *)cdev);
+                             ccw_device_call_sch_unregister, cdev);
                 queue_work(ccw_device_work, &cdev->private->kick_work);
         }
         wake_up(&cdev->private->wait_q);
@@ -754,7 +748,7 @@ ccw_device_online_notoper(struct ccw_device *cdev, enum dev_event dev_event)
         }
         if (get_device(&cdev->dev)) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_call_sch_unregister, (void *)cdev);
+                             ccw_device_call_sch_unregister, cdev);
                 queue_work(ccw_device_work, &cdev->private->kick_work);
         }
         wake_up(&cdev->private->wait_q);
@@ -859,7 +853,7 @@ ccw_device_online_timeout(struct ccw_device *cdev, enum dev_event dev_event)
                 sch = to_subchannel(cdev->dev.parent);
                 if (!sch->lpm) {
                         PREPARE_WORK(&cdev->private->kick_work,
-                                     ccw_device_nopath_notify, (void *)cdev);
+                                     ccw_device_nopath_notify, cdev);
                         queue_work(ccw_device_notify_work,
                                    &cdev->private->kick_work);
                 } else
@@ -885,7 +879,8 @@ ccw_device_w4sense(struct ccw_device *cdev, enum dev_event dev_event)
                         /* Basic sense hasn't started. Try again. */
                         ccw_device_do_sense(cdev, irb);
                 else {
-                        printk("Huh? %s(%s): unsolicited interrupt...\n",
+                        printk(KERN_INFO "Huh? %s(%s): unsolicited "
+                               "interrupt...\n",
                                __FUNCTION__, cdev->dev.bus_id);
                         if (cdev->handler)
                                 cdev->handler (cdev, 0, irb);
@@ -944,10 +939,10 @@ ccw_device_killing_irq(struct ccw_device *cdev, enum dev_event dev_event)
         cdev->private->state = DEV_STATE_ONLINE;
         if (cdev->handler)
                 cdev->handler(cdev, cdev->private->intparm,
-                              ERR_PTR(-ETIMEDOUT));
+                              ERR_PTR(-EIO));
         if (!sch->lpm) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_nopath_notify, (void *)cdev);
+                             ccw_device_nopath_notify, cdev);
                 queue_work(ccw_device_notify_work, &cdev->private->kick_work);
         } else if (cdev->private->flags.doverify)
                 /* Start delayed path verification. */
@@ -970,7 +965,7 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event)
                 sch = to_subchannel(cdev->dev.parent);
                 if (!sch->lpm) {
                         PREPARE_WORK(&cdev->private->kick_work,
-                                     ccw_device_nopath_notify, (void *)cdev);
+                                     ccw_device_nopath_notify, cdev);
                         queue_work(ccw_device_notify_work,
                                    &cdev->private->kick_work);
                 } else
@@ -981,51 +976,15 @@ ccw_device_killing_timeout(struct ccw_device *cdev, enum dev_event dev_event)
         cdev->private->state = DEV_STATE_ONLINE;
         if (cdev->handler)
                 cdev->handler(cdev, cdev->private->intparm,
-                              ERR_PTR(-ETIMEDOUT));
-}
-
-static void
-ccw_device_wait4io_irq(struct ccw_device *cdev, enum dev_event dev_event)
-{
-        struct irb *irb;
-        struct subchannel *sch;
-
-        irb = (struct irb *) __LC_IRB;
-        /*
-         * Accumulate status and find out if a basic sense is needed.
-         * This is fine since we have already adapted the lpm.
-         */
-        ccw_device_accumulate_irb(cdev, irb);
-        if (cdev->private->flags.dosense) {
-                if (ccw_device_do_sense(cdev, irb) == 0) {
-                        cdev->private->state = DEV_STATE_W4SENSE;
-                }
-                return;
-        }
-
-        /* Iff device is idle, reset timeout. */
-        sch = to_subchannel(cdev->dev.parent);
-        if (!stsch(sch->schid, &sch->schib))
-                if (sch->schib.scsw.actl == 0)
-                        ccw_device_set_timeout(cdev, 0);
-        /* Call the handler. */
-        ccw_device_call_handler(cdev);
-        if (!sch->lpm) {
-                PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_nopath_notify, (void *)cdev);
-                queue_work(ccw_device_notify_work, &cdev->private->kick_work);
-        } else if (cdev->private->flags.doverify)
-                ccw_device_online_verify(cdev, 0);
+                              ERR_PTR(-EIO));
 }
 
-static void
-ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
+void device_kill_io(struct subchannel *sch)
 {
         int ret;
-        struct subchannel *sch;
+        struct ccw_device *cdev;
 
-        sch = to_subchannel(cdev->dev.parent);
-        ccw_device_set_timeout(cdev, 0);
+        cdev = sch->dev.driver_data;
         ret = ccw_device_cancel_halt_clear(cdev);
         if (ret == -EBUSY) {
                 ccw_device_set_timeout(cdev, 3*HZ);
@@ -1035,7 +994,7 @@ ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
         if (ret == -ENODEV) {
                 if (!sch->lpm) {
                         PREPARE_WORK(&cdev->private->kick_work,
-                                     ccw_device_nopath_notify, (void *)cdev);
+                                     ccw_device_nopath_notify, cdev);
                         queue_work(ccw_device_notify_work,
                                    &cdev->private->kick_work);
                 } else
@@ -1044,12 +1003,12 @@ ccw_device_wait4io_timeout(struct ccw_device *cdev, enum dev_event dev_event)
         }
         if (cdev->handler)
                 cdev->handler(cdev, cdev->private->intparm,
-                              ERR_PTR(-ETIMEDOUT));
+                              ERR_PTR(-EIO));
         if (!sch->lpm) {
                 PREPARE_WORK(&cdev->private->kick_work,
-                             ccw_device_nopath_notify, (void *)cdev);
+                             ccw_device_nopath_notify, cdev);
                 queue_work(ccw_device_notify_work, &cdev->private->kick_work);
-        } else if (cdev->private->flags.doverify)
+        } else
                 /* Start delayed path verification. */
                 ccw_device_online_verify(cdev, 0);
 }
@@ -1286,12 +1245,6 @@ fsm_func_t *dev_jumptable[NR_DEV_STATES][NR_DEV_EVENTS] = {
                 [DEV_EVENT_TIMEOUT]     = ccw_device_killing_timeout,
                 [DEV_EVENT_VERIFY]      = ccw_device_nop, //FIXME
         },
-        [DEV_STATE_WAIT4IO] = {
-                [DEV_EVENT_NOTOPER]     = ccw_device_online_notoper,
-                [DEV_EVENT_INTERRUPT]   = ccw_device_wait4io_irq,
-                [DEV_EVENT_TIMEOUT]     = ccw_device_wait4io_timeout,
-                [DEV_EVENT_VERIFY]      = ccw_device_delay_verify,
-        },
         [DEV_STATE_QUIESCE] = {
                 [DEV_EVENT_NOTOPER]     = ccw_device_quiesce_done,
                 [DEV_EVENT_INTERRUPT]   = ccw_device_quiesce_done,
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index 1398367b5f68..a74785b9e4eb 100644
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -251,7 +251,7 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
                  */
                 CIO_MSG_EVENT(2, "SenseID : device %04x on Subchannel "
                               "0.%x.%04x reports cmd reject\n",
-                              cdev->private->devno, sch->schid.ssid,
+                              cdev->private->dev_id.devno, sch->schid.ssid,
                               sch->schid.sch_no);
                 return -EOPNOTSUPP;
         }
@@ -259,7 +259,8 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
                 CIO_MSG_EVENT(2, "SenseID : UC on dev 0.%x.%04x, "
                               "lpum %02X, cnt %02d, sns :"
                               " %02X%02X%02X%02X %02X%02X%02X%02X ...\n",
-                              cdev->private->ssid, cdev->private->devno,
+                              cdev->private->dev_id.ssid,
+                              cdev->private->dev_id.devno,
                               irb->esw.esw0.sublog.lpum,
                               irb->esw.esw0.erw.scnt,
                               irb->ecw[0], irb->ecw[1],
@@ -274,14 +275,15 @@ ccw_device_check_sense_id(struct ccw_device *cdev)
                         CIO_MSG_EVENT(2, "SenseID : path %02X for device %04x "
                                       "on subchannel 0.%x.%04x is "
                                       "'not operational'\n", sch->orb.lpm,
-                                      cdev->private->devno, sch->schid.ssid,
-                                      sch->schid.sch_no);
+                                      cdev->private->dev_id.devno,
+                                      sch->schid.ssid, sch->schid.sch_no);
                 return -EACCES;
         }
         /* Hmm, whatever happened, try again. */
         CIO_MSG_EVENT(2, "SenseID : start_IO() for device %04x on "
                       "subchannel 0.%x.%04x returns status %02X%02X\n",
-                      cdev->private->devno, sch->schid.ssid, sch->schid.sch_no,
+                      cdev->private->dev_id.devno, sch->schid.ssid,
+                      sch->schid.sch_no,
                       irb->scsw.dstat, irb->scsw.cstat);
         return -EAGAIN;
 }
@@ -330,7 +332,7 @@ ccw_device_sense_id_irq(struct ccw_device *cdev, enum dev_event dev_event)
                 /* fall through. */
         default:                /* Sense ID failed. Try asking VM. */
                 if (MACHINE_IS_VM) {
-                        VM_virtual_device_info (cdev->private->devno,
+                        VM_virtual_device_info (cdev->private->dev_id.devno,
                                                 &cdev->private->senseid);
                         if (cdev->private->senseid.cu_type != 0xFFFF) {
                                 /* Got the device information from VM. */
diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c
index 84b9b18eabc2..b39c1fa48acd 100644
--- a/drivers/s390/cio/device_ops.c
+++ b/drivers/s390/cio/device_ops.c
@@ -50,7 +50,6 @@ ccw_device_clear(struct ccw_device *cdev, unsigned long intparm)
         if (cdev->private->state == DEV_STATE_NOT_OPER)
                 return -ENODEV;
         if (cdev->private->state != DEV_STATE_ONLINE &&
-            cdev->private->state != DEV_STATE_WAIT4IO &&
             cdev->private->state != DEV_STATE_W4SENSE)
                 return -EINVAL;
         sch = to_subchannel(cdev->dev.parent);
@@ -155,7 +154,6 @@ ccw_device_halt(struct ccw_device *cdev, unsigned long intparm)
         if (cdev->private->state == DEV_STATE_NOT_OPER)
                 return -ENODEV;
         if (cdev->private->state != DEV_STATE_ONLINE &&
-            cdev->private->state != DEV_STATE_WAIT4IO &&
             cdev->private->state != DEV_STATE_W4SENSE)
                 return -EINVAL;
         sch = to_subchannel(cdev->dev.parent);
@@ -592,13 +590,13 @@ ccw_device_get_chp_desc(struct ccw_device *cdev, int chp_no)
 int
 _ccw_device_get_subchannel_number(struct ccw_device *cdev)
 {
-        return cdev->private->sch_no;
+        return cdev->private->schid.sch_no;
 }
 
 int
 _ccw_device_get_device_number(struct ccw_device *cdev)
 {
-        return cdev->private->devno;
+        return cdev->private->dev_id.devno;
 }
 
 
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index 84917b39de45..2975ce888c19 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -79,7 +79,8 @@ __ccw_device_sense_pgid_start(struct ccw_device *cdev)
                         CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel "
                                       "0.%x.%04x, lpm %02X, became 'not "
                                       "operational'\n",
-                                      cdev->private->devno, sch->schid.ssid,
+                                      cdev->private->dev_id.devno,
+                                      sch->schid.ssid,
                                       sch->schid.sch_no, cdev->private->imask);
 
                 }
@@ -135,7 +136,8 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
                 CIO_MSG_EVENT(2, "SNID - device 0.%x.%04x, unit check, "
                               "lpum %02X, cnt %02d, sns : "
                               "%02X%02X%02X%02X %02X%02X%02X%02X ...\n",
-                              cdev->private->ssid, cdev->private->devno,
+                              cdev->private->dev_id.ssid,
+                              cdev->private->dev_id.devno,
                               irb->esw.esw0.sublog.lpum,
                               irb->esw.esw0.erw.scnt,
                               irb->ecw[0], irb->ecw[1],
@@ -147,7 +149,7 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
         if (irb->scsw.cc == 3) {
                 CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x,"
                               " lpm %02X, became 'not operational'\n",
-                              cdev->private->devno, sch->schid.ssid,
+                              cdev->private->dev_id.devno, sch->schid.ssid,
                               sch->schid.sch_no, sch->orb.lpm);
                 return -EACCES;
         }
@@ -155,7 +157,7 @@ __ccw_device_check_sense_pgid(struct ccw_device *cdev)
         if (cdev->private->pgid[i].inf.ps.state2 == SNID_STATE2_RESVD_ELSE) {
                 CIO_MSG_EVENT(2, "SNID - Device %04x on Subchannel 0.%x.%04x "
                               "is reserved by someone else\n",
-                              cdev->private->devno, sch->schid.ssid,
+                              cdev->private->dev_id.devno, sch->schid.ssid,
                               sch->schid.sch_no);
                 return -EUSERS;
         }
@@ -261,7 +263,7 @@ __ccw_device_do_pgid(struct ccw_device *cdev, __u8 func)
         /* PGID command failed on this path. */
         CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel "
                       "0.%x.%04x, lpm %02X, became 'not operational'\n",
-                      cdev->private->devno, sch->schid.ssid,
+                      cdev->private->dev_id.devno, sch->schid.ssid,
                       sch->schid.sch_no, cdev->private->imask);
         return ret;
 }
@@ -301,7 +303,7 @@ static int __ccw_device_do_nop(struct ccw_device *cdev)
         /* nop command failed on this path. */
         CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel "
                       "0.%x.%04x, lpm %02X, became 'not operational'\n",
-                      cdev->private->devno, sch->schid.ssid,
+                      cdev->private->dev_id.devno, sch->schid.ssid,
                       sch->schid.sch_no, cdev->private->imask);
         return ret;
 }
@@ -328,8 +330,9 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
                 CIO_MSG_EVENT(2, "SPID - device 0.%x.%04x, unit check, "
                               "cnt %02d, "
                               "sns : %02X%02X%02X%02X %02X%02X%02X%02X ...\n",
-                              cdev->private->ssid,
-                              cdev->private->devno, irb->esw.esw0.erw.scnt,
+                              cdev->private->dev_id.ssid,
+                              cdev->private->dev_id.devno,
+                              irb->esw.esw0.erw.scnt,
                               irb->ecw[0], irb->ecw[1],
                               irb->ecw[2], irb->ecw[3],
                               irb->ecw[4], irb->ecw[5],
@@ -339,7 +342,7 @@ __ccw_device_check_pgid(struct ccw_device *cdev)
         if (irb->scsw.cc == 3) {
                 CIO_MSG_EVENT(2, "SPID - Device %04x on Subchannel 0.%x.%04x,"
                               " lpm %02X, became 'not operational'\n",
-                              cdev->private->devno, sch->schid.ssid,
+                              cdev->private->dev_id.devno, sch->schid.ssid,
                               sch->schid.sch_no, cdev->private->imask);
                 return -EACCES;
         }
@@ -362,7 +365,7 @@ static int __ccw_device_check_nop(struct ccw_device *cdev)
         if (irb->scsw.cc == 3) {
                 CIO_MSG_EVENT(2, "NOP - Device %04x on Subchannel 0.%x.%04x,"
                               " lpm %02X, became 'not operational'\n",
-                              cdev->private->devno, sch->schid.ssid,
+                              cdev->private->dev_id.devno, sch->schid.ssid,
                               sch->schid.sch_no, cdev->private->imask);
                 return -EACCES;
         }
diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c
index caf148d5caad..3f7cbce4cd87 100644
--- a/drivers/s390/cio/device_status.c
+++ b/drivers/s390/cio/device_status.c
@@ -32,19 +32,18 @@ ccw_device_msg_control_check(struct ccw_device *cdev, struct irb *irb)
                                  SCHN_STAT_CHN_CTRL_CHK |
                                  SCHN_STAT_INTF_CTRL_CHK)))
                 return;
-                
         CIO_MSG_EVENT(0, "Channel-Check or Interface-Control-Check "
                       "received"
                       " ... device %04x on subchannel 0.%x.%04x, dev_stat "
                       ": %02X sch_stat : %02X\n",
-                      cdev->private->devno, cdev->private->ssid,
-                      cdev->private->sch_no,
+                      cdev->private->dev_id.devno, cdev->private->schid.ssid,
+                      cdev->private->schid.sch_no,
                       irb->scsw.dstat, irb->scsw.cstat);
 
         if (irb->scsw.cc != 3) {
                 char dbf_text[15];
 
-                sprintf(dbf_text, "chk%x", cdev->private->sch_no);
+                sprintf(dbf_text, "chk%x", cdev->private->schid.sch_no);
                 CIO_TRACE_EVENT(0, dbf_text);
                 CIO_HEX_EVENT(0, irb, sizeof (struct irb));
         }
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index cde822d8b5c8..476aa1da5cbc 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -1741,7 +1741,7 @@ qdio_fill_qs(struct qdio_irq *irq_ptr, struct ccw_device *cdev,
         void *ptr;
         int available;
 
-        sprintf(dbf_text,"qfqs%4x",cdev->private->sch_no);
+        sprintf(dbf_text,"qfqs%4x",cdev->private->schid.sch_no);
         QDIO_DBF_TEXT0(0,setup,dbf_text);
         for (i=0;i<no_input_qs;i++) {
                 q=irq_ptr->input_qs[i];
@@ -2924,7 +2924,7 @@ qdio_establish_handle_irq(struct ccw_device *cdev, int cstat, int dstat)
 
         irq_ptr = cdev->private->qdio_data;
 
-        sprintf(dbf_text,"qehi%4x",cdev->private->sch_no);
+        sprintf(dbf_text,"qehi%4x",cdev->private->schid.sch_no);
         QDIO_DBF_TEXT0(0,setup,dbf_text);
         QDIO_DBF_TEXT0(0,trace,dbf_text);
 
@@ -2943,7 +2943,7 @@ qdio_initialize(struct qdio_initialize *init_data)
         int rc;
         char dbf_text[15];
 
-        sprintf(dbf_text,"qini%4x",init_data->cdev->private->sch_no);
+        sprintf(dbf_text,"qini%4x",init_data->cdev->private->schid.sch_no);
         QDIO_DBF_TEXT0(0,setup,dbf_text);
         QDIO_DBF_TEXT0(0,trace,dbf_text);
 
@@ -2964,7 +2964,7 @@ qdio_allocate(struct qdio_initialize *init_data)
         struct qdio_irq *irq_ptr;
         char dbf_text[15];
 
-        sprintf(dbf_text,"qalc%4x",init_data->cdev->private->sch_no);
+        sprintf(dbf_text,"qalc%4x",init_data->cdev->private->schid.sch_no);
         QDIO_DBF_TEXT0(0,setup,dbf_text);
         QDIO_DBF_TEXT0(0,trace,dbf_text);
         if ( (init_data->no_input_qs>QDIO_MAX_QUEUES_PER_IRQ) ||
@@ -3187,7 +3187,7 @@ qdio_establish(struct qdio_initialize *init_data)
                 tiqdio_set_delay_target(irq_ptr,TIQDIO_DELAY_TARGET);
         }
 
-        sprintf(dbf_text,"qest%4x",cdev->private->sch_no);
+        sprintf(dbf_text,"qest%4x",cdev->private->schid.sch_no);
         QDIO_DBF_TEXT0(0,setup,dbf_text);
         QDIO_DBF_TEXT0(0,trace,dbf_text);
 
@@ -3529,7 +3529,7 @@ do_QDIO(struct ccw_device *cdev,unsigned int callflags,
 #ifdef CONFIG_QDIO_DEBUG
         char dbf_text[20];
 
-        sprintf(dbf_text,"doQD%04x",cdev->private->sch_no);
+        sprintf(dbf_text,"doQD%04x",cdev->private->schid.sch_no);
         QDIO_DBF_TEXT3(0,trace,dbf_text);
 #endif /* CONFIG_QDIO_DEBUG */
 
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index c5ccd20b110c..79d89c368919 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -739,11 +739,16 @@ static void ap_scan_bus(void *data)
                 dev = bus_find_device(&ap_bus_type, NULL,
                                       (void *)(unsigned long)qid,
                                       __ap_scan_bus);
+                rc = ap_query_queue(qid, &queue_depth, &device_type);
+                if (dev && rc) {
+                        put_device(dev);
+                        device_unregister(dev);
+                        continue;
+                }
                 if (dev) {
                         put_device(dev);
                         continue;
                 }
-                rc = ap_query_queue(qid, &queue_depth, &device_type);
                 if (rc)
                         continue;
                 rc = ap_init_queue(qid);
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index 8f882690994d..74c0eac083e4 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -107,6 +107,10 @@ zfcp_address_to_sg(void *address, struct scatterlist *list)
         (ZFCP_MAX_SBALS_PER_REQ * ZFCP_MAX_SBALES_PER_SBAL - 2)
         /* request ID + QTCB in SBALE 0 + 1 of first SBAL in chain */
 
+#define ZFCP_MAX_SECTORS (ZFCP_MAX_SBALES_PER_REQ * 8)
+        /* max. number of (data buffer) SBALEs in largest SBAL chain
+           multiplied with number of sectors per 4k block */
+
 /* FIXME(tune): free space should be one max. SBAL chain plus what? */
 #define ZFCP_QDIO_PCI_INTERVAL          (QDIO_MAX_BUFFERS_PER_Q \
                                          - (ZFCP_MAX_SBALS_PER_REQ + 4))
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 4d2bc7981324..452d96f92a14 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -58,6 +58,7 @@ struct zfcp_data zfcp_data = {
                 .cmd_per_lun            = 1,
                 .use_clustering         = 1,
                 .sdev_attrs             = zfcp_sysfs_sdev_attrs,
+                .max_sectors            = ZFCP_MAX_SECTORS,
         },
         .driver_version = ZFCP_VERSION,
 };