Merge tag 's390-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Vasily Gorbik:

 - Fix integer overflow during stack frame unwind with invalid
   backchain.

 - Cleanup unused symbol export in zcrypt code.

 - Fix MIO addressing control activation in PCI code and expose its
   usage via sysfs.

 - Fix kernel image signature verification report presence detection.

 - Fix irq registration in vfio-ap code.

 - Add CPU measurement counters for newer machines.

 - Add base DASD thin provisioning support and code cleanups.

* tag 's390-5.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (21 commits)
  s390/unwind: avoid int overflow in outside_of_stack
  s390/zcrypt: remove the exporting of ap_query_configuration
  s390/pci: add mio_enabled attribute
  s390: fix setting of mio addressing control
  s390/ipl: Fix detection of has_secure attribute
  s390: vfio-ap: fix irq registration
  s390/cpumf: Add extended counter set definitions for model 8561 and 8562
  s390/dasd: Handle out-of-space constraint
  s390/dasd: Add discard support for ESE volumes
  s390/dasd: Use ALIGN_DOWN macro
  s390/dasd: Make dasd_setup_queue() a discipline function
  s390/dasd: Add new ioctl to release space
  s390/dasd: Add dasd_sleep_on_queue_interruptible()
  s390/dasd: Add missing intensity definition
  s390/dasd: Fix whitespace
  s390/dasd: Add dynamic formatting support for ESE volumes
  s390/dasd: Recognise data for ESE volumes
  s390/dasd: Put sub-order definitions in a separate section
  s390/dasd: Make layout analysis ESE compatible
  s390/dasd: Remove old defines and function
  ...

13 files changed, 1451 insertions, 160 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index e03304fe25bb..6cca72782af6 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -70,7 +70,6 @@ MODULE_LICENSE("GPL");
  * SECTION: prototypes for static functions of dasd.c
  */
 static int  dasd_alloc_queue(struct dasd_block *);
-static void dasd_setup_queue(struct dasd_block *);
 static void dasd_free_queue(struct dasd_block *);
 static int dasd_flush_block_queue(struct dasd_block *);
 static void dasd_device_tasklet(unsigned long);
@@ -120,9 +119,18 @@ struct dasd_device *dasd_alloc_device(void)
 		kfree(device);
 		return ERR_PTR(-ENOMEM);
 	}
+	/* Get two pages for ese format. */
+	device->ese_mem = (void *)__get_free_pages(GFP_ATOMIC | GFP_DMA, 1);
+	if (!device->ese_mem) {
+		free_page((unsigned long) device->erp_mem);
+		free_pages((unsigned long) device->ccw_mem, 1);
+		kfree(device);
+		return ERR_PTR(-ENOMEM);
+	}
 
 	dasd_init_chunklist(&device->ccw_chunks, device->ccw_mem, PAGE_SIZE*2);
 	dasd_init_chunklist(&device->erp_chunks, device->erp_mem, PAGE_SIZE);
+	dasd_init_chunklist(&device->ese_chunks, device->ese_mem, PAGE_SIZE * 2);
 	spin_lock_init(&device->mem_lock);
 	atomic_set(&device->tasklet_scheduled, 0);
 	tasklet_init(&device->tasklet, dasd_device_tasklet,
@@ -146,6 +154,7 @@ struct dasd_device *dasd_alloc_device(void)
 void dasd_free_device(struct dasd_device *device)
 {
 	kfree(device->private);
+	free_pages((unsigned long) device->ese_mem, 1);
 	free_page((unsigned long) device->erp_mem);
 	free_pages((unsigned long) device->ccw_mem, 1);
 	kfree(device);
@@ -348,7 +357,8 @@ static int dasd_state_basic_to_ready(struct dasd_device *device)
 			}
 			return rc;
 		}
-		dasd_setup_queue(block);
+		if (device->discipline->setup_blk_queue)
+			device->discipline->setup_blk_queue(block);
 		set_capacity(block->gdp,
 			     block->blocks << block->s2b_shift);
 		device->state = DASD_STATE_READY;
@@ -1258,6 +1268,49 @@ struct dasd_ccw_req *dasd_smalloc_request(int magic, int cplength, int datasize,
 }
 EXPORT_SYMBOL(dasd_smalloc_request);
 
+struct dasd_ccw_req *dasd_fmalloc_request(int magic, int cplength,
+					  int datasize,
+					  struct dasd_device *device)
+{
+	struct dasd_ccw_req *cqr;
+	unsigned long flags;
+	int size, cqr_size;
+	char *data;
+
+	cqr_size = (sizeof(*cqr) + 7L) & -8L;
+	size = cqr_size;
+	if (cplength > 0)
+		size += cplength * sizeof(struct ccw1);
+	if (datasize > 0)
+		size += datasize;
+
+	spin_lock_irqsave(&device->mem_lock, flags);
+	cqr = dasd_alloc_chunk(&device->ese_chunks, size);
+	spin_unlock_irqrestore(&device->mem_lock, flags);
+	if (!cqr)
+		return ERR_PTR(-ENOMEM);
+	memset(cqr, 0, sizeof(*cqr));
+	data = (char *)cqr + cqr_size;
+	cqr->cpaddr = NULL;
+	if (cplength > 0) {
+		cqr->cpaddr = data;
+		data += cplength * sizeof(struct ccw1);
+		memset(cqr->cpaddr, 0, cplength * sizeof(struct ccw1));
+	}
+	cqr->data = NULL;
+	if (datasize > 0) {
+		cqr->data = data;
+		memset(cqr->data, 0, datasize);
+	}
+
+	cqr->magic = magic;
+	set_bit(DASD_CQR_FLAGS_USE_ERP, &cqr->flags);
+	dasd_get_device(device);
+
+	return cqr;
+}
+EXPORT_SYMBOL(dasd_fmalloc_request);
+
 void dasd_sfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device)
 {
 	unsigned long flags;
@@ -1269,6 +1322,17 @@ void dasd_sfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device)
 }
 EXPORT_SYMBOL(dasd_sfree_request);
 
+void dasd_ffree_request(struct dasd_ccw_req *cqr, struct dasd_device *device)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&device->mem_lock, flags);
+	dasd_free_chunk(&device->ese_chunks, cqr);
+	spin_unlock_irqrestore(&device->mem_lock, flags);
+	dasd_put_device(device);
+}
+EXPORT_SYMBOL(dasd_ffree_request);
+
 /*
  * Check discipline magic in cqr.
  */
@@ -1573,13 +1637,43 @@ static int dasd_check_hpf_error(struct irb *irb)
 	     irb->scsw.tm.sesq == SCSW_SESQ_PATH_NOFCX));
 }
 
+static int dasd_ese_needs_format(struct dasd_block *block, struct irb *irb)
+{
+	struct dasd_device *device = NULL;
+	u8 *sense = NULL;
+
+	if (!block)
+		return 0;
+	device = block->base;
+	if (!device || !device->discipline->is_ese)
+		return 0;
+	if (!device->discipline->is_ese(device))
+		return 0;
+
+	sense = dasd_get_sense(irb);
+	if (!sense)
+		return 0;
+
+	return !!(sense[1] & SNS1_NO_REC_FOUND) ||
+		!!(sense[1] & SNS1_FILE_PROTECTED) ||
+		scsw_cstat(&irb->scsw) == SCHN_STAT_INCORR_LEN;
+}
+
+static int dasd_ese_oos_cond(u8 *sense)
+{
+	return sense[0] & SNS0_EQUIPMENT_CHECK &&
+		sense[1] & SNS1_PERM_ERR &&
+		sense[1] & SNS1_WRITE_INHIBITED &&
+		sense[25] == 0x01;
+}
+
 /*
  * Interrupt handler for "normal" ssch-io based dasd devices.
  */
 void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
 		      struct irb *irb)
 {
-	struct dasd_ccw_req *cqr, *next;
+	struct dasd_ccw_req *cqr, *next, *fcqr;
 	struct dasd_device *device;
 	unsigned long now;
 	int nrf_suppressed = 0;
@@ -1641,6 +1735,17 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
 				test_bit(DASD_CQR_SUPPRESS_FP, &cqr->flags);
 			nrf_suppressed = (sense[1] & SNS1_NO_REC_FOUND) &&
 				test_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);
+
+			/*
+			 * Extent pool probably out-of-space.
+			 * Stop device and check exhaust level.
+			 */
+			if (dasd_ese_oos_cond(sense)) {
+				dasd_generic_space_exhaust(device, cqr);
+				device->discipline->ext_pool_exhaust(device, cqr);
+				dasd_put_device(device);
+				return;
+			}
 		}
 		if (!(fp_suppressed || nrf_suppressed))
 			device->discipline->dump_sense_dbf(device, irb, "int");
@@ -1672,6 +1777,31 @@ void dasd_int_handler(struct ccw_device *cdev, unsigned long intparm,
 		return;
 	}
 
+	if (dasd_ese_needs_format(cqr->block, irb)) {
+		if (rq_data_dir((struct request *)cqr->callback_data) == READ) {
+			device->discipline->ese_read(cqr);
+			cqr->status = DASD_CQR_SUCCESS;
+			cqr->stopclk = now;
+			dasd_device_clear_timer(device);
+			dasd_schedule_device_bh(device);
+			return;
+		}
+		fcqr = device->discipline->ese_format(device, cqr);
+		if (IS_ERR(fcqr)) {
+			/*
+			 * If we can't format now, let the request go
+			 * one extra round. Maybe we can format later.
+			 */
+			cqr->status = DASD_CQR_QUEUED;
+		} else {
+			fcqr->status = DASD_CQR_QUEUED;
+			cqr->status = DASD_CQR_QUEUED;
+			list_add(&fcqr->devlist, &device->ccw_queue);
+			dasd_schedule_device_bh(device);
+			return;
+		}
+	}
+
 	/* Check for clear pending */
 	if (cqr->status == DASD_CQR_CLEAR_PENDING &&
 	    scsw_fctl(&irb->scsw) & SCSW_FCTL_CLEAR_FUNC) {
@@ -1910,7 +2040,7 @@ static void __dasd_device_check_expire(struct dasd_device *device)
 static int __dasd_device_is_unusable(struct dasd_device *device,
 				     struct dasd_ccw_req *cqr)
 {
-	int mask = ~(DASD_STOPPED_DC_WAIT | DASD_UNRESUMED_PM);
+	int mask = ~(DASD_STOPPED_DC_WAIT | DASD_UNRESUMED_PM | DASD_STOPPED_NOSPC);
 
 	if (test_bit(DASD_FLAG_OFFLINE, &device->flags) &&
 	    !test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) {
@@ -2412,6 +2542,15 @@ int dasd_sleep_on_queue(struct list_head *ccw_queue)
 EXPORT_SYMBOL(dasd_sleep_on_queue);
 
 /*
+ * Start requests from a ccw_queue and wait interruptible for their completion.
+ */
+int dasd_sleep_on_queue_interruptible(struct list_head *ccw_queue)
+{
+	return _dasd_sleep_on_queue(ccw_queue, 1);
+}
+EXPORT_SYMBOL(dasd_sleep_on_queue_interruptible);
+
+/*
  * Queue a request to the tail of the device ccw_queue and wait
  * interruptible for it's completion.
  */
@@ -3130,55 +3269,6 @@ static int dasd_alloc_queue(struct dasd_block *block)
 }
 
 /*
- * Allocate and initialize request queue.
- */
-static void dasd_setup_queue(struct dasd_block *block)
-{
-	unsigned int logical_block_size = block->bp_block;
-	struct request_queue *q = block->request_queue;
-	unsigned int max_bytes, max_discard_sectors;
-	int max;
-
-	if (block->base->features & DASD_FEATURE_USERAW) {
-		/*
-		 * the max_blocks value for raw_track access is 256
-		 * it is higher than the native ECKD value because we
-		 * only need one ccw per track
-		 * so the max_hw_sectors are
-		 * 2048 x 512B = 1024kB = 16 tracks
-		 */
-		max = 2048;
-	} else {
-		max = block->base->discipline->max_blocks << block->s2b_shift;
-	}
-	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
-	q->limits.max_dev_sectors = max;
-	blk_queue_logical_block_size(q, logical_block_size);
-	blk_queue_max_hw_sectors(q, max);
-	blk_queue_max_segments(q, USHRT_MAX);
-	/* with page sized segments we can translate each segement into
-	 * one idaw/tidaw
-	 */
-	blk_queue_max_segment_size(q, PAGE_SIZE);
-	blk_queue_segment_boundary(q, PAGE_SIZE - 1);
-
-	/* Only activate blocklayer discard support for devices that support it */
-	if (block->base->features & DASD_FEATURE_DISCARD) {
-		q->limits.discard_granularity = logical_block_size;
-		q->limits.discard_alignment = PAGE_SIZE;
-
-		/* Calculate max_discard_sectors and make it PAGE aligned */
-		max_bytes = USHRT_MAX * logical_block_size;
-		max_bytes = ALIGN(max_bytes, PAGE_SIZE) - PAGE_SIZE;
-		max_discard_sectors = max_bytes / logical_block_size;
-
-		blk_queue_max_discard_sectors(q, max_discard_sectors);
-		blk_queue_max_write_zeroes_sectors(q, max_discard_sectors);
-		blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
-	}
-}
-
-/*
  * Deactivate and free request queue.
  */
 static void dasd_free_queue(struct dasd_block *block)
@@ -3806,6 +3896,43 @@ int dasd_generic_verify_path(struct dasd_device *device, __u8 lpm)
 }
 EXPORT_SYMBOL_GPL(dasd_generic_verify_path);
 
+void dasd_generic_space_exhaust(struct dasd_device *device,
+				struct dasd_ccw_req *cqr)
+{
+	dasd_eer_write(device, NULL, DASD_EER_NOSPC);
+
+	if (device->state < DASD_STATE_BASIC)
+		return;
+
+	if (cqr->status == DASD_CQR_IN_IO ||
+	    cqr->status == DASD_CQR_CLEAR_PENDING) {
+		cqr->status = DASD_CQR_QUEUED;
+		cqr->retries++;
+	}
+	dasd_device_set_stop_bits(device, DASD_STOPPED_NOSPC);
+	dasd_device_clear_timer(device);
+	dasd_schedule_device_bh(device);
+}
+EXPORT_SYMBOL_GPL(dasd_generic_space_exhaust);
+
+void dasd_generic_space_avail(struct dasd_device *device)
+{
+	dev_info(&device->cdev->dev, "Extent pool space is available\n");
+	DBF_DEV_EVENT(DBF_WARNING, device, "%s", "space available");
+
+	dasd_device_remove_stop_bits(device, DASD_STOPPED_NOSPC);
+	dasd_schedule_device_bh(device);
+
+	if (device->block) {
+		dasd_schedule_block_bh(device->block);
+		if (device->block->request_queue)
+			blk_mq_run_hw_queues(device->block->request_queue, true);
+	}
+	if (!device->stopped)
+		wake_up(&generic_waitq);
+}
+EXPORT_SYMBOL_GPL(dasd_generic_space_avail);
+
 /*
  * clear active requests and requeue them to block layer if possible
  */
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index 245f33c2f71e..32fc51341d99 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -1642,6 +1642,35 @@ static DEVICE_ATTR(path_interval, 0644, dasd_path_interval_show,
 		   dasd_path_interval_store);
 
 
+#define DASD_DEFINE_ATTR(_name, _func)					\
+static ssize_t dasd_##_name##_show(struct device *dev,			\
+				   struct device_attribute *attr,	\
+				   char *buf)				\
+{									\
+	struct ccw_device *cdev = to_ccwdev(dev);			\
+	struct dasd_device *device = dasd_device_from_cdev(cdev);	\
+	int val = 0;							\
+									\
+	if (IS_ERR(device))						\
+		return -ENODEV;						\
+	if (device->discipline && _func)				\
+		val = _func(device);					\
+	dasd_put_device(device);					\
+									\
+	return snprintf(buf, PAGE_SIZE, "%d\n", val);			\
+}									\
+static DEVICE_ATTR(_name, 0444, dasd_##_name##_show, NULL);		\
+
+DASD_DEFINE_ATTR(ese, device->discipline->is_ese);
+DASD_DEFINE_ATTR(extent_size, device->discipline->ext_size);
+DASD_DEFINE_ATTR(pool_id, device->discipline->ext_pool_id);
+DASD_DEFINE_ATTR(space_configured, device->discipline->space_configured);
+DASD_DEFINE_ATTR(space_allocated, device->discipline->space_allocated);
+DASD_DEFINE_ATTR(logical_capacity, device->discipline->logical_capacity);
+DASD_DEFINE_ATTR(warn_threshold, device->discipline->ext_pool_warn_thrshld);
+DASD_DEFINE_ATTR(cap_at_warnlevel, device->discipline->ext_pool_cap_at_warnlevel);
+DASD_DEFINE_ATTR(pool_oos, device->discipline->ext_pool_oos);
+
 static struct attribute * dasd_attrs[] = {
 	&dev_attr_readonly.attr,
 	&dev_attr_discipline.attr,
@@ -1667,6 +1696,7 @@ static struct attribute * dasd_attrs[] = {
 	&dev_attr_path_interval.attr,
 	&dev_attr_path_reset.attr,
 	&dev_attr_hpf.attr,
+	&dev_attr_ese.attr,
 	NULL,
 };
 
@@ -1674,6 +1704,39 @@ static const struct attribute_group dasd_attr_group = {
 	.attrs = dasd_attrs,
 };
 
+static struct attribute *capacity_attrs[] = {
+	&dev_attr_space_configured.attr,
+	&dev_attr_space_allocated.attr,
+	&dev_attr_logical_capacity.attr,
+	NULL,
+};
+
+static const struct attribute_group capacity_attr_group = {
+	.name = "capacity",
+	.attrs = capacity_attrs,
+};
+
+static struct attribute *ext_pool_attrs[] = {
+	&dev_attr_pool_id.attr,
+	&dev_attr_extent_size.attr,
+	&dev_attr_warn_threshold.attr,
+	&dev_attr_cap_at_warnlevel.attr,
+	&dev_attr_pool_oos.attr,
+	NULL,
+};
+
+static const struct attribute_group ext_pool_attr_group = {
+	.name = "extent_pool",
+	.attrs = ext_pool_attrs,
+};
+
+static const struct attribute_group *dasd_attr_groups[] = {
+	&dasd_attr_group,
+	&capacity_attr_group,
+	&ext_pool_attr_group,
+	NULL,
+};
+
 /*
  * Return value of the specified feature.
  */
@@ -1715,16 +1778,15 @@ dasd_set_feature(struct ccw_device *cdev, int feature, int flag)
 EXPORT_SYMBOL(dasd_set_feature);
 
 
-int
-dasd_add_sysfs_files(struct ccw_device *cdev)
+int dasd_add_sysfs_files(struct ccw_device *cdev)
 {
-	return sysfs_create_group(&cdev->dev.kobj, &dasd_attr_group);
+	return sysfs_create_groups(&cdev->dev.kobj, dasd_attr_groups);
 }
 
 void
 dasd_remove_sysfs_files(struct ccw_device *cdev)
 {
-	sysfs_remove_group(&cdev->dev.kobj, &dasd_attr_group);
+	sysfs_remove_groups(&cdev->dev.kobj, dasd_attr_groups);
 }
 
 
diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index e1fe02477ea8..8d4971645cf1 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -615,14 +615,34 @@ dasd_diag_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req,
 		    "dump sense not available for DIAG data");
 }
 
+/*
+ * Initialize block layer request queue.
+ */
+static void dasd_diag_setup_blk_queue(struct dasd_block *block)
+{
+	unsigned int logical_block_size = block->bp_block;
+	struct request_queue *q = block->request_queue;
+	int max;
+
+	max = DIAG_MAX_BLOCKS << block->s2b_shift;
+	blk_queue_flag_set(QUEUE_FLAG_NONROT, q);
+	q->limits.max_dev_sectors = max;
+	blk_queue_logical_block_size(q, logical_block_size);
+	blk_queue_max_hw_sectors(q, max);
+	blk_queue_max_segments(q, USHRT_MAX);
+	/* With page sized segments each segment can be translated into one idaw/tidaw */
+	blk_queue_max_segment_size(q, PAGE_SIZE);
+	blk_queue_segment_boundary(q, PAGE_SIZE - 1);
+}
+
 static struct dasd_discipline dasd_diag_discipline = {
 	.owner = THIS_MODULE,
 	.name = "DIAG",
 	.ebcname = "DIAG",
-	.max_blocks = DIAG_MAX_BLOCKS,
 	.check_device = dasd_diag_check_device,
 	.verify_path = dasd_generic_verify_path,
 	.fill_geometry = dasd_diag_fill_geometry,
+	.setup_blk_queue = dasd_diag_setup_blk_queue,
 	.start_IO = dasd_start_diag,
 	.term_IO = dasd_diag_term_IO,
 	.handle_terminated_request = dasd_diag_handle_terminated_request,
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index c09039eea707..fc53e1e221f0 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -42,20 +42,6 @@
 #endif				/* PRINTK_HEADER */
 #define PRINTK_HEADER "dasd(eckd):"
 
-#define ECKD_C0(i) (i->home_bytes)
-#define ECKD_F(i) (i->formula)
-#define ECKD_F1(i) (ECKD_F(i)==0x01?(i->factors.f_0x01.f1):\
-		    (i->factors.f_0x02.f1))
-#define ECKD_F2(i) (ECKD_F(i)==0x01?(i->factors.f_0x01.f2):\
-		    (i->factors.f_0x02.f2))
-#define ECKD_F3(i) (ECKD_F(i)==0x01?(i->factors.f_0x01.f3):\
-		    (i->factors.f_0x02.f3))
-#define ECKD_F4(i) (ECKD_F(i)==0x02?(i->factors.f_0x02.f4):0)
-#define ECKD_F5(i) (ECKD_F(i)==0x02?(i->factors.f_0x02.f5):0)
-#define ECKD_F6(i) (i->factor6)
-#define ECKD_F7(i) (i->factor7)
-#define ECKD_F8(i) (i->factor8)
-
 /*
  * raw track access always map to 64k in memory
  * so it maps to 16 blocks of 4k per track
@@ -103,6 +89,19 @@ static struct {
 } *dasd_reserve_req;
 static DEFINE_MUTEX(dasd_reserve_mutex);
 
+static struct {
+	struct dasd_ccw_req cqr;
+	struct ccw1 ccw[2];
+	char data[40];
+} *dasd_vol_info_req;
+static DEFINE_MUTEX(dasd_vol_info_mutex);
+
+struct ext_pool_exhaust_work_data {
+	struct work_struct worker;
+	struct dasd_device *device;
+	struct dasd_device *base;
+};
+
 /* definitions for the path verification worker */
 struct path_verification_work_data {
 	struct work_struct worker;
@@ -122,6 +121,7 @@ struct check_attention_work_data {
 	__u8 lpum;
 };
 
+static int dasd_eckd_ext_pool_id(struct dasd_device *);
 static int prepare_itcw(struct itcw *, unsigned int, unsigned int, int,
 			struct dasd_device *, struct dasd_device *,
 			unsigned int, int, unsigned int, unsigned int,
@@ -157,17 +157,10 @@ static const int sizes_trk0[] = { 28, 148, 84 };
 #define LABEL_SIZE 140
 
 /* head and record addresses of count_area read in analysis ccw */
-static const int count_area_head[] = { 0, 0, 0, 0, 2 };
+static const int count_area_head[] = { 0, 0, 0, 0, 1 };
 static const int count_area_rec[] = { 1, 2, 3, 4, 1 };
 
 static inline unsigned int
-round_up_multiple(unsigned int no, unsigned int mult)
-{
-	int rem = no % mult;
-	return (rem ? no - rem + mult : no);
-}
-
-static inline unsigned int
 ceil_quot(unsigned int d1, unsigned int d2)
 {
 	return (d1 + (d2 - 1)) / d2;
@@ -1491,6 +1484,311 @@ static int dasd_eckd_read_features(struct dasd_device *device)
 	return rc;
 }
 
+/* Read Volume Information - Volume Storage Query */
+static int dasd_eckd_read_vol_info(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+	struct dasd_psf_prssd_data *prssdp;
+	struct dasd_rssd_vsq *vsq;
+	struct dasd_ccw_req *cqr;
+	struct ccw1 *ccw;
+	int useglobal;
+	int rc;
+
+	/* This command cannot be executed on an alias device */
+	if (private->uid.type == UA_BASE_PAV_ALIAS ||
+	    private->uid.type == UA_HYPER_PAV_ALIAS)
+		return 0;
+
+	useglobal = 0;
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 2 /* PSF + RSSD */,
+				   sizeof(*prssdp) + sizeof(*vsq), device, NULL);
+	if (IS_ERR(cqr)) {
+		DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+				"Could not allocate initialization request");
+		mutex_lock(&dasd_vol_info_mutex);
+		useglobal = 1;
+		cqr = &dasd_vol_info_req->cqr;
+		memset(cqr, 0, sizeof(*cqr));
+		memset(dasd_vol_info_req, 0, sizeof(*dasd_vol_info_req));
+		cqr->cpaddr = &dasd_vol_info_req->ccw;
+		cqr->data = &dasd_vol_info_req->data;
+		cqr->magic = DASD_ECKD_MAGIC;
+	}
+
+	/* Prepare for Read Subsystem Data */
+	prssdp = cqr->data;
+	prssdp->order = PSF_ORDER_PRSSD;
+	prssdp->suborder = PSF_SUBORDER_VSQ;	/* Volume Storage Query */
+	prssdp->lss = private->ned->ID;
+	prssdp->volume = private->ned->unit_addr;
+
+	ccw = cqr->cpaddr;
+	ccw->cmd_code = DASD_ECKD_CCW_PSF;
+	ccw->count = sizeof(*prssdp);
+	ccw->flags |= CCW_FLAG_CC;
+	ccw->cda = (__u32)(addr_t)prssdp;
+
+	/* Read Subsystem Data - Volume Storage Query */
+	vsq = (struct dasd_rssd_vsq *)(prssdp + 1);
+	memset(vsq, 0, sizeof(*vsq));
+
+	ccw++;
+	ccw->cmd_code = DASD_ECKD_CCW_RSSD;
+	ccw->count = sizeof(*vsq);
+	ccw->flags |= CCW_FLAG_SLI;
+	ccw->cda = (__u32)(addr_t)vsq;
+
+	cqr->buildclk = get_tod_clock();
+	cqr->status = DASD_CQR_FILLED;
+	cqr->startdev = device;
+	cqr->memdev = device;
+	cqr->block = NULL;
+	cqr->retries = 256;
+	cqr->expires = device->default_expires * HZ;
+	/* The command might not be supported. Suppress the error output */
+	__set_bit(DASD_CQR_SUPPRESS_CR, &cqr->flags);
+
+	rc = dasd_sleep_on_interruptible(cqr);
+	if (rc == 0) {
+		memcpy(&private->vsq, vsq, sizeof(*vsq));
+	} else {
+		dev_warn(&device->cdev->dev,
+			 "Reading the volume storage information failed with rc=%d\n", rc);
+	}
+
+	if (useglobal)
+		mutex_unlock(&dasd_vol_info_mutex);
+	else
+		dasd_sfree_request(cqr, cqr->memdev);
+
+	return rc;
+}
+
+static int dasd_eckd_is_ese(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->vsq.vol_info.ese;
+}
+
+static int dasd_eckd_ext_pool_id(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->vsq.extent_pool_id;
+}
+
+/*
+ * This value represents the total amount of available space. As more space is
+ * allocated by ESE volumes, this value will decrease.
+ * The data for this value is therefore updated on any call.
+ */
+static int dasd_eckd_space_configured(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+	int rc;
+
+	rc = dasd_eckd_read_vol_info(device);
+
+	return rc ? : private->vsq.space_configured;
+}
+
+/*
+ * The value of space allocated by an ESE volume may have changed and is
+ * therefore updated on any call.
+ */
+static int dasd_eckd_space_allocated(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+	int rc;
+
+	rc = dasd_eckd_read_vol_info(device);
+
+	return rc ? : private->vsq.space_allocated;
+}
+
+static int dasd_eckd_logical_capacity(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->vsq.logical_capacity;
+}
+
+static void dasd_eckd_ext_pool_exhaust_work(struct work_struct *work)
+{
+	struct ext_pool_exhaust_work_data *data;
+	struct dasd_device *device;
+	struct dasd_device *base;
+
+	data = container_of(work, struct ext_pool_exhaust_work_data, worker);
+	device = data->device;
+	base = data->base;
+
+	if (!base)
+		base = device;
+	if (dasd_eckd_space_configured(base) != 0) {
+		dasd_generic_space_avail(device);
+	} else {
+		dev_warn(&device->cdev->dev, "No space left in the extent pool\n");
+		DBF_DEV_EVENT(DBF_WARNING, device, "%s", "out of space");
+	}
+
+	dasd_put_device(device);
+	kfree(data);
+}
+
+static int dasd_eckd_ext_pool_exhaust(struct dasd_device *device,
+				      struct dasd_ccw_req *cqr)
+{
+	struct ext_pool_exhaust_work_data *data;
+
+	data = kzalloc(sizeof(*data), GFP_ATOMIC);
+	if (!data)
+		return -ENOMEM;
+	INIT_WORK(&data->worker, dasd_eckd_ext_pool_exhaust_work);
+	dasd_get_device(device);
+	data->device = device;
+
+	if (cqr->block)
+		data->base = cqr->block->base;
+	else if (cqr->basedev)
+		data->base = cqr->basedev;
+	else
+		data->base = NULL;
+
+	schedule_work(&data->worker);
+
+	return 0;
+}
+
+static void dasd_eckd_cpy_ext_pool_data(struct dasd_device *device,
+					struct dasd_rssd_lcq *lcq)
+{
+	struct dasd_eckd_private *private = device->private;
+	int pool_id = dasd_eckd_ext_pool_id(device);
+	struct dasd_ext_pool_sum eps;
+	int i;
+
+	for (i = 0; i < lcq->pool_count; i++) {
+		eps = lcq->ext_pool_sum[i];
+		if (eps.pool_id == pool_id) {
+			memcpy(&private->eps, &eps,
+			       sizeof(struct dasd_ext_pool_sum));
+		}
+	}
+}
+
+/* Read Extent Pool Information - Logical Configuration Query */
+static int dasd_eckd_read_ext_pool_info(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+	struct dasd_psf_prssd_data *prssdp;
+	struct dasd_rssd_lcq *lcq;
+	struct dasd_ccw_req *cqr;
+	struct ccw1 *ccw;
+	int rc;
+
+	/* This command cannot be executed on an alias device */
+	if (private->uid.type == UA_BASE_PAV_ALIAS ||
+	    private->uid.type == UA_HYPER_PAV_ALIAS)
+		return 0;
+
+	cqr = dasd_smalloc_request(DASD_ECKD_MAGIC, 2 /* PSF + RSSD */,
+				   sizeof(*prssdp) + sizeof(*lcq), device, NULL);
+	if (IS_ERR(cqr)) {
+		DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+				"Could not allocate initialization request");
+		return PTR_ERR(cqr);
+	}
+
+	/* Prepare for Read Subsystem Data */
+	prssdp = cqr->data;
+	memset(prssdp, 0, sizeof(*prssdp));
+	prssdp->order = PSF_ORDER_PRSSD;
+	prssdp->suborder = PSF_SUBORDER_LCQ;	/* Logical Configuration Query */
+
+	ccw = cqr->cpaddr;
+	ccw->cmd_code = DASD_ECKD_CCW_PSF;
+	ccw->count = sizeof(*prssdp);
+	ccw->flags |= CCW_FLAG_CC;
+	ccw->cda = (__u32)(addr_t)prssdp;
+
+	lcq = (struct dasd_rssd_lcq *)(prssdp + 1);
+	memset(lcq, 0, sizeof(*lcq));
+
+	ccw++;
+	ccw->cmd_code = DASD_ECKD_CCW_RSSD;
+	ccw->count = sizeof(*lcq);
+	ccw->flags |= CCW_FLAG_SLI;
+	ccw->cda = (__u32)(addr_t)lcq;
+
+	cqr->buildclk = get_tod_clock();
+	cqr->status = DASD_CQR_FILLED;
+	cqr->startdev = device;
+	cqr->memdev = device;
+	cqr->block = NULL;
+	cqr->retries = 256;
+	cqr->expires = device->default_expires * HZ;
+	/* The command might not be supported. Suppress the error output */
+	__set_bit(DASD_CQR_SUPPRESS_CR, &cqr->flags);
+
+	rc = dasd_sleep_on_interruptible(cqr);
+	if (rc == 0) {
+		dasd_eckd_cpy_ext_pool_data(device, lcq);
+	} else {
+		dev_warn(&device->cdev->dev,
+			 "Reading the logical configuration failed with rc=%d\n", rc);
+	}
+
+	dasd_sfree_request(cqr, cqr->memdev);
+
+	return rc;
+}
+
+/*
+ * Depending on the device type, the extent size is specified either as
+ * cylinders per extent (CKD) or size per extent (FBA)
+ * A 1GB size corresponds to 1113cyl, and 16MB to 21cyl.
+ */
+static int dasd_eckd_ext_size(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+	struct dasd_ext_pool_sum eps = private->eps;
+
+	if (!eps.flags.extent_size_valid)
+		return 0;
+	if (eps.extent_size.size_1G)
+		return 1113;
+	if (eps.extent_size.size_16M)
+		return 21;
+
+	return 0;
+}
+
+static int dasd_eckd_ext_pool_warn_thrshld(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->eps.warn_thrshld;
+}
+
+static int dasd_eckd_ext_pool_cap_at_warnlevel(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->eps.flags.capacity_at_warnlevel;
+}
+
+/*
+ * Extent Pool out of space
+ */
+static int dasd_eckd_ext_pool_oos(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private = device->private;
+
+	return private->eps.flags.pool_oos;
+}
 
 /*
  * Build CP for Perform Subsystem Function - SSC.
@@ -1721,6 +2019,16 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 	/* Read Feature Codes */
 	dasd_eckd_read_features(device);
 
+	/* Read Volume Information */
+	rc = dasd_eckd_read_vol_info(device);
+	if (rc)
+		goto out_err3;
+
+	/* Read Extent Pool Information */
+	rc = dasd_eckd_read_ext_pool_info(device);
+	if (rc)
+		goto out_err3;
+
 	/* Read Device Characteristics */
 	rc = dasd_generic_read_dev_chars(device, DASD_ECKD_MAGIC,
 					 &private->rdc_data, 64);
@@ -1751,6 +2059,9 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 	if (readonly)
 		set_bit(DASD_FLAG_DEVICE_RO, &device->flags);
 
+	if (dasd_eckd_is_ese(device))
+		dasd_set_feature(device->cdev, DASD_FEATURE_DISCARD, 1);
+
 	dev_info(&device->cdev->dev, "New DASD %04X/%02X (CU %04X/%02X) "
 		 "with %d cylinders, %d heads, %d sectors%s\n",
 		 private->rdc_data.dev_type,
@@ -1823,8 +2134,8 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
 	if (IS_ERR(cqr))
 		return cqr;
 	ccw = cqr->cpaddr;
-	/* Define extent for the first 3 tracks. */
-	define_extent(ccw++, cqr->data, 0, 2,
+	/* Define extent for the first 2 tracks. */
+	define_extent(ccw++, cqr->data, 0, 1,
 		      DASD_ECKD_CCW_READ_COUNT, device, 0);
 	LO_data = cqr->data + sizeof(struct DE_eckd_data);
 	/* Locate record for the first 4 records on track 0. */
@@ -1843,9 +2154,9 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
 		count_data++;
 	}
 
-	/* Locate record for the first record on track 2. */
+	/* Locate record for the first record on track 1. */
 	ccw[-1].flags |= CCW_FLAG_CC;
-	locate_record(ccw++, LO_data++, 2, 0, 1,
+	locate_record(ccw++, LO_data++, 1, 0, 1,
 		      DASD_ECKD_CCW_READ_COUNT, device, 0);
 	/* Read count ccw. */
 	ccw[-1].flags |= CCW_FLAG_CC;
@@ -1860,6 +2171,9 @@ dasd_eckd_analysis_ccw(struct dasd_device *device)
 	cqr->retries = 255;
 	cqr->buildclk = get_tod_clock();
 	cqr->status = DASD_CQR_FILLED;
+	/* Set flags to suppress output for expected errors */
+	set_bit(DASD_CQR_SUPPRESS_NRF, &cqr->flags);