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
  ...

22 files changed, 1547 insertions, 256 deletions

diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index ff81ed19c506..61cf9531f68f 100644
--- a/arch/s390/include/asm/pci_insn.h
+++ b/arch/s390/include/asm/pci_insn.h
@@ -143,14 +143,4 @@ static inline int zpci_set_irq_ctrl(u16 ctl, u8 isc)
 	return __zpci_set_irq_ctrl(ctl, isc, &iib);
 }
 
-#ifdef CONFIG_PCI
-static inline void enable_mio_ctl(void)
-{
-	if (static_branch_likely(&have_mio))
-		__ctl_set_bit(2, 5);
-}
-#else /* CONFIG_PCI */
-static inline void enable_mio_ctl(void) {}
-#endif /* CONFIG_PCI */
-
 #endif
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index f577c5f6031a..c563f8368b19 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -80,7 +80,6 @@ struct sclp_info {
 	unsigned char has_gisaf : 1;
 	unsigned char has_diag318 : 1;
 	unsigned char has_sipl : 1;
-	unsigned char has_sipl_g2 : 1;
 	unsigned char has_dirq : 1;
 	unsigned int ibc;
 	unsigned int mtid;
diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h
index 832be5c2584f..9ec86fae9980 100644
--- a/arch/s390/include/uapi/asm/dasd.h
+++ b/arch/s390/include/uapi/asm/dasd.h
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/* 
+/*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
  * Copyright IBM Corp. 1999, 2000
@@ -21,40 +21,40 @@
 
 #define DASD_API_VERSION 6
 
-/* 
+/*
  * struct dasd_information2_t
  * represents any data about the device, which is visible to userspace.
  *  including foramt and featueres.
  */
 typedef struct dasd_information2_t {
-        unsigned int devno;         /* S/390 devno */
-        unsigned int real_devno;    /* for aliases */
-        unsigned int schid;         /* S/390 subchannel identifier */
-        unsigned int cu_type  : 16; /* from SenseID */
-        unsigned int cu_model :  8; /* from SenseID */
-        unsigned int dev_type : 16; /* from SenseID */
-        unsigned int dev_model : 8; /* from SenseID */
-        unsigned int open_count; 
-        unsigned int req_queue_len; 
-        unsigned int chanq_len;     /* length of chanq */
-        char type[4];               /* from discipline.name, 'none' for unknown */
-        unsigned int status;        /* current device level */
-        unsigned int label_block;   /* where to find the VOLSER */
-        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
-        unsigned int characteristics_size;
-        unsigned int confdata_size;
-        char characteristics[64];   /* from read_device_characteristics */
-        char configuration_data[256]; /* from read_configuration_data */
-        unsigned int format;          /* format info like formatted/cdl/ldl/... */
-        unsigned int features;        /* dasd features like 'ro',...            */
-        unsigned int reserved0;       /* reserved for further use ,...          */
-        unsigned int reserved1;       /* reserved for further use ,...          */
-        unsigned int reserved2;       /* reserved for further use ,...          */
-        unsigned int reserved3;       /* reserved for further use ,...          */
-        unsigned int reserved4;       /* reserved for further use ,...          */
-        unsigned int reserved5;       /* reserved for further use ,...          */
-        unsigned int reserved6;       /* reserved for further use ,...          */
-        unsigned int reserved7;       /* reserved for further use ,...          */
+	unsigned int devno;	    /* S/390 devno */
+	unsigned int real_devno;    /* for aliases */
+	unsigned int schid;	    /* S/390 subchannel identifier */
+	unsigned int cu_type  : 16; /* from SenseID */
+	unsigned int cu_model :  8; /* from SenseID */
+	unsigned int dev_type : 16; /* from SenseID */
+	unsigned int dev_model : 8; /* from SenseID */
+	unsigned int open_count;
+	unsigned int req_queue_len;
+	unsigned int chanq_len;     /* length of chanq */
+	char type[4];		    /* from discipline.name, 'none' for unknown */
+	unsigned int status;	    /* current device level */
+	unsigned int label_block;   /* where to find the VOLSER */
+	unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+	unsigned int characteristics_size;
+	unsigned int confdata_size;
+	char characteristics[64];   /* from read_device_characteristics */
+	char configuration_data[256]; /* from read_configuration_data */
+	unsigned int format;	      /* format info like formatted/cdl/ldl/... */
+	unsigned int features;	      /* dasd features like 'ro',...		*/
+	unsigned int reserved0;       /* reserved for further use ,...		*/
+	unsigned int reserved1;       /* reserved for further use ,...		*/
+	unsigned int reserved2;       /* reserved for further use ,...		*/
+	unsigned int reserved3;       /* reserved for further use ,...		*/
+	unsigned int reserved4;       /* reserved for further use ,...		*/
+	unsigned int reserved5;       /* reserved for further use ,...		*/
+	unsigned int reserved6;       /* reserved for further use ,...		*/
+	unsigned int reserved7;       /* reserved for further use ,...		*/
 } dasd_information2_t;
 
 /*
@@ -92,34 +92,34 @@ typedef struct dasd_information2_t {
 
 #define DASD_PARTN_BITS 2
 
-/* 
+/*
  * struct dasd_information_t
  * represents any data about the data, which is visible to userspace
  */
 typedef struct dasd_information_t {
-        unsigned int devno;         /* S/390 devno */
-        unsigned int real_devno;    /* for aliases */
-        unsigned int schid;         /* S/390 subchannel identifier */
-        unsigned int cu_type  : 16; /* from SenseID */
-        unsigned int cu_model :  8; /* from SenseID */
-        unsigned int dev_type : 16; /* from SenseID */
-        unsigned int dev_model : 8; /* from SenseID */
-        unsigned int open_count; 
-        unsigned int req_queue_len; 
-        unsigned int chanq_len;     /* length of chanq */
-        char type[4];               /* from discipline.name, 'none' for unknown */
-        unsigned int status;        /* current device level */
-        unsigned int label_block;   /* where to find the VOLSER */
-        unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
-        unsigned int characteristics_size;
-        unsigned int confdata_size;
-        char characteristics[64];   /* from read_device_characteristics */
-        char configuration_data[256]; /* from read_configuration_data */
+	unsigned int devno;	    /* S/390 devno */
+	unsigned int real_devno;    /* for aliases */
+	unsigned int schid;	    /* S/390 subchannel identifier */
+	unsigned int cu_type  : 16; /* from SenseID */
+	unsigned int cu_model :  8; /* from SenseID */
+	unsigned int dev_type : 16; /* from SenseID */
+	unsigned int dev_model : 8; /* from SenseID */
+	unsigned int open_count;
+	unsigned int req_queue_len;
+	unsigned int chanq_len;     /* length of chanq */
+	char type[4];		    /* from discipline.name, 'none' for unknown */
+	unsigned int status;	    /* current device level */
+	unsigned int label_block;   /* where to find the VOLSER */
+	unsigned int FBA_layout;    /* fixed block size (like AIXVOL) */
+	unsigned int characteristics_size;
+	unsigned int confdata_size;
+	char characteristics[64];   /* from read_device_characteristics */
+	char configuration_data[256]; /* from read_configuration_data */
 } dasd_information_t;
 
 /*
  * Read Subsystem Data - Performance Statistics
- */ 
+ */
 typedef struct dasd_rssd_perf_stats_t {
 	unsigned char  invalid:1;
 	unsigned char  format:3;
@@ -154,21 +154,21 @@ typedef struct dasd_rssd_perf_stats_t {
 	unsigned char  reseved2[96];
 } __attribute__((packed)) dasd_rssd_perf_stats_t;
 
-/* 
+/*
  * struct profile_info_t
- * holds the profinling information 
+ * holds the profinling information
  */
 typedef struct dasd_profile_info_t {
-        unsigned int dasd_io_reqs;	 /* number of requests processed at all */
-        unsigned int dasd_io_sects;	 /* number of sectors processed at all */
-        unsigned int dasd_io_secs[32];	 /* histogram of request's sizes */
-        unsigned int dasd_io_times[32];	 /* histogram of requests's times */
-        unsigned int dasd_io_timps[32];	 /* histogram of requests's times per sector */
-        unsigned int dasd_io_time1[32];	 /* histogram of time from build to start */
-        unsigned int dasd_io_time2[32];	 /* histogram of time from start to irq */
-        unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */
-        unsigned int dasd_io_time3[32];	 /* histogram of time from irq to end */
-        unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
+	unsigned int dasd_io_reqs;	 /* number of requests processed at all */
+	unsigned int dasd_io_sects;	 /* number of sectors processed at all */
+	unsigned int dasd_io_secs[32];	 /* histogram of request's sizes */
+	unsigned int dasd_io_times[32];	 /* histogram of requests's times */
+	unsigned int dasd_io_timps[32];	 /* histogram of requests's times per sector */
+	unsigned int dasd_io_time1[32];	 /* histogram of time from build to start */
+	unsigned int dasd_io_time2[32];	 /* histogram of time from start to irq */
+	unsigned int dasd_io_time2ps[32]; /* histogram of time from start to irq */
+	unsigned int dasd_io_time3[32];	 /* histogram of time from irq to end */
+	unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
 } dasd_profile_info_t;
 
 /*
@@ -189,10 +189,12 @@ typedef struct format_data_t {
  * 3/11: also write home address
  * 4/12: invalidate track
  */
-#define DASD_FMT_INT_FMT_R0 1 /* write record zero */
-#define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */
-#define DASD_FMT_INT_INVAL  4 /* invalidate tracks */
-#define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */
+#define DASD_FMT_INT_FMT_R0	1	/* write record zero */
+#define DASD_FMT_INT_FMT_HA	2	/* write home address, also set FMT_R0 ! */
+#define DASD_FMT_INT_INVAL	4	/* invalidate tracks */
+#define DASD_FMT_INT_COMPAT	8	/* use OS/390 compatible disk layout */
+#define DASD_FMT_INT_FMT_NOR0	16	/* remove permission to write record zero */
+#define DASD_FMT_INT_ESE_FULL	32	/* release space for entire volume */
 
 /*
  * struct format_check_t
@@ -225,7 +227,7 @@ typedef struct format_check_t {
 /* If key-length was != 0 */
 #define DASD_FMT_ERR_KEY_LENGTH		5
 
-/* 
+/*
  * struct attrib_data_t
  * represents the operation (cache) bits for the device.
  * Used in DE to influence caching of the DASD.
@@ -281,13 +283,13 @@ struct dasd_snid_ioctl_data {
  * Here ist how the ioctl-nr should be used:
  *    0 -   31   DASD driver itself
  *   32 -  239   still open
- *  240 -  255   reserved for EMC 
+ *  240 -  255	 reserved for EMC
  *******************************************************************************/
 
 /* Disable the volume (for Linux) */
-#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0) 
+#define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0)
 /* Enable the volume (for Linux) */
-#define BIODASDENABLE  _IO(DASD_IOCTL_LETTER,1)  
+#define BIODASDENABLE  _IO(DASD_IOCTL_LETTER,1)
 /* Issue a reserve/release command, rsp. */
 #define BIODASDRSRV    _IO(DASD_IOCTL_LETTER,2) /* reserve */
 #define BIODASDRLSE    _IO(DASD_IOCTL_LETTER,3) /* release */
@@ -295,9 +297,9 @@ struct dasd_snid_ioctl_data {
 /* reset profiling information of a device */
 #define BIODASDPRRST   _IO(DASD_IOCTL_LETTER,5)
 /* Quiesce IO on device */
-#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6) 
+#define BIODASDQUIESCE _IO(DASD_IOCTL_LETTER,6)
 /* Resume IO on device */
-#define BIODASDRESUME  _IO(DASD_IOCTL_LETTER,7) 
+#define BIODASDRESUME  _IO(DASD_IOCTL_LETTER,7)
 /* Abort all I/O on a device */
 #define BIODASDABORTIO _IO(DASD_IOCTL_LETTER, 240)
 /* Allow I/O on a device */
@@ -315,13 +317,15 @@ struct dasd_snid_ioctl_data {
 /* Performance Statistics Read */
 #define BIODASDPSRD    _IOR(DASD_IOCTL_LETTER,4,dasd_rssd_perf_stats_t)
 /* Get Attributes (cache operations) */
-#define BIODASDGATTR   _IOR(DASD_IOCTL_LETTER,5,attrib_data_t) 
+#define BIODASDGATTR   _IOR(DASD_IOCTL_LETTER,5,attrib_data_t)
 
 
 /* #define BIODASDFORMAT  _IOW(IOCTL_LETTER,0,format_data_t) , deprecated */
-#define BIODASDFMT     _IOW(DASD_IOCTL_LETTER,1,format_data_t) 
+#define BIODASDFMT     _IOW(DASD_IOCTL_LETTER,1,format_data_t)
 /* Set Attributes (cache operations) */
-#define BIODASDSATTR   _IOW(DASD_IOCTL_LETTER,2,attrib_data_t) 
+#define BIODASDSATTR   _IOW(DASD_IOCTL_LETTER,2,attrib_data_t)
+/* Release Allocated Space */
+#define BIODASDRAS     _IOW(DASD_IOCTL_LETTER, 3, format_data_t)
 
 /* Get Sense Path Group ID (SNID) data */
 #define BIODASDSNID    _IOWR(DASD_IOCTL_LETTER, 1, struct dasd_snid_ioctl_data)
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 629f173f60cd..6312fed48530 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -30,7 +30,6 @@
 #include <asm/sclp.h>
 #include <asm/facility.h>
 #include <asm/boot_data.h>
-#include <asm/pci_insn.h>
 #include "entry.h"
 
 /*
@@ -236,7 +235,6 @@ static __init void detect_machine_facilities(void)
 		clock_comparator_max = -1ULL >> 1;
 		__ctl_set_bit(0, 53);
 	}
-	enable_mio_ctl();
 }
 
 static inline void save_vector_registers(void)
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index d836af3ccc38..2c0a515428d6 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -286,12 +286,7 @@ static struct kobj_attribute sys_ipl_secure_attr =
 static ssize_t ipl_has_secure_show(struct kobject *kobj,
 				   struct kobj_attribute *attr, char *page)
 {
-	if (MACHINE_IS_LPAR)
-		return sprintf(page, "%i\n", !!sclp.has_sipl);
-	else if (MACHINE_IS_VM)
-		return sprintf(page, "%i\n", !!sclp.has_sipl_g2);
-	else
-		return sprintf(page, "%i\n", 0);
+	return sprintf(page, "%i\n", !!sclp.has_sipl);
 }
 
 static struct kobj_attribute sys_ipl_has_secure_attr =
diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index 34cc96449b30..8b33e03e47b8 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -624,6 +624,8 @@ __init const struct attribute_group **cpumf_cf_event_group(void)
 		break;
 	case 0x3906:
 	case 0x3907:
+	case 0x8561:
+	case 0x8562:
 		model = cpumcf_z14_pmu_event_attr;
 		break;
 	default:
diff --git a/arch/s390/kernel/unwind_bc.c b/arch/s390/kernel/unwind_bc.c
index 3ce8a0808059..8fc9daae47a2 100644
--- a/arch/s390/kernel/unwind_bc.c
+++ b/arch/s390/kernel/unwind_bc.c
@@ -20,7 +20,7 @@ EXPORT_SYMBOL_GPL(unwind_get_return_address);
 static bool outside_of_stack(struct unwind_state *state, unsigned long sp)
 {
 	return (sp <= state->sp) ||
-		(sp + sizeof(struct stack_frame) > state->stack_info.end);
+		(sp > state->stack_info.end - sizeof(struct stack_frame));
 }
 
 static bool update_stack_info(struct unwind_state *state, unsigned long sp)
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index b8a64cbb5dea..b0e3b9a0e488 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -890,8 +890,10 @@ static int __init pci_base_init(void)
 	if (!test_facility(69) || !test_facility(71))
 		return 0;
 
-	if (test_facility(153) && !s390_pci_no_mio)
+	if (test_facility(153) && !s390_pci_no_mio) {
 		static_branch_enable(&have_mio);
+		ctl_set_bit(2, 5);
+	}
 
 	rc = zpci_debug_init();
 	if (rc)
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index 430c14b006d1..a433ba01a317 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -37,6 +37,15 @@ zpci_attr(segment1, "0x%02x\n", pfip[1]);
 zpci_attr(segment2, "0x%02x\n", pfip[2]);
 zpci_attr(segment3, "0x%02x\n", pfip[3]);
 
+static ssize_t mio_enabled_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct zpci_dev *zdev = to_zpci(to_pci_dev(dev));
+
+	return sprintf(buf, zpci_use_mio(zdev) ? "1\n" : "0\n");
+}
+static DEVICE_ATTR_RO(mio_enabled);
+
 static ssize_t recover_store(struct device *dev, struct device_attribute *attr,
 			     const char *buf, size_t count)
 {
@@ -115,6 +124,7 @@ static struct attribute *zpci_dev_attrs[] = {
 	&dev_attr_vfn.attr,
 	&dev_attr_uid.attr,
 	&dev_attr_recover.attr,
+	&dev_attr_mio_enabled.attr,
 	NULL,
 };
 static struct attribute_group zpci_attr_group = {
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_thre