Merge ../linux-2.6

28 files changed, 911 insertions, 703 deletions

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index a3bfebcf31ef..cfb1fff3787c 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -315,6 +315,11 @@ dasd_increase_state(struct dasd_device *device)
 		rc = dasd_state_basic_to_ready(device);
 
 	if (!rc &&
+	    device->state == DASD_STATE_UNFMT &&
+	    device->target > DASD_STATE_UNFMT)
+		rc = -EPERM;
+
+	if (!rc &&
 	    device->state == DASD_STATE_READY &&
 	    device->target >= DASD_STATE_ONLINE)
 		rc = dasd_state_ready_to_online(device);
diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c
index c1c6f1381150..216bc4fba199 100644
--- a/drivers/s390/block/dasd_devmap.c
+++ b/drivers/s390/block/dasd_devmap.c
@@ -45,6 +45,7 @@ struct dasd_devmap {
         unsigned int devindex;
         unsigned short features;
 	struct dasd_device *device;
+	struct dasd_uid uid;
 };
 
 /*
@@ -716,6 +717,68 @@ dasd_discipline_show(struct device *dev, struct device_attribute *attr, char *bu
 
 static DEVICE_ATTR(discipline, 0444, dasd_discipline_show, NULL);
 
+static ssize_t
+dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct dasd_devmap *devmap;
+	int alias;
+
+	devmap = dasd_find_busid(dev->bus_id);
+	spin_lock(&dasd_devmap_lock);
+	if (!IS_ERR(devmap))
+		alias = devmap->uid.alias;
+	else
+		alias = 0;
+	spin_unlock(&dasd_devmap_lock);
+
+	return sprintf(buf, alias ? "1\n" : "0\n");
+}
+
+static DEVICE_ATTR(alias, 0444, dasd_alias_show, NULL);
+
+static ssize_t
+dasd_vendor_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct dasd_devmap *devmap;
+	char *vendor;
+
+	devmap = dasd_find_busid(dev->bus_id);
+	spin_lock(&dasd_devmap_lock);
+	if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0)
+		vendor = devmap->uid.vendor;
+	else
+		vendor = "";
+	spin_unlock(&dasd_devmap_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", vendor);
+}
+
+static DEVICE_ATTR(vendor, 0444, dasd_vendor_show, NULL);
+
+#define UID_STRLEN ( /* vendor */ 3 + 1 + /* serial    */ 14 + 1 +\
+		     /* SSID   */ 4 + 1 + /* unit addr */ 2 + 1)
+
+static ssize_t
+dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct dasd_devmap *devmap;
+	char uid[UID_STRLEN];
+
+	devmap = dasd_find_busid(dev->bus_id);
+	spin_lock(&dasd_devmap_lock);
+	if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0)
+		snprintf(uid, sizeof(uid), "%s.%s.%04x.%02x",
+			 devmap->uid.vendor, devmap->uid.serial,
+			 devmap->uid.ssid, devmap->uid.unit_addr);
+	else
+		uid[0] = 0;
+	spin_unlock(&dasd_devmap_lock);
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", uid);
+}
+
+static DEVICE_ATTR(uid, 0444, dasd_uid_show, NULL);
+
 /*
  * extended error-reporting
  */
@@ -759,6 +822,9 @@ static DEVICE_ATTR(eer_enabled, 0644, dasd_eer_show, dasd_eer_store);
 static struct attribute * dasd_attrs[] = {
 	&dev_attr_readonly.attr,
 	&dev_attr_discipline.attr,
+	&dev_attr_alias.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_uid.attr,
 	&dev_attr_use_diag.attr,
 	&dev_attr_eer_enabled.attr,
 	NULL,
@@ -768,6 +834,42 @@ static struct attribute_group dasd_attr_group = {
 	.attrs = dasd_attrs,
 };
 
+
+/*
+ * Return copy of the device unique identifier.
+ */
+int
+dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid)
+{
+	struct dasd_devmap *devmap;
+
+	devmap = dasd_find_busid(cdev->dev.bus_id);
+	if (IS_ERR(devmap))
+		return PTR_ERR(devmap);
+	spin_lock(&dasd_devmap_lock);
+	*uid = devmap->uid;
+	spin_unlock(&dasd_devmap_lock);
+	return 0;
+}
+
+/*
+ * Register the given device unique identifier into devmap struct.
+ */
+int
+dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid)
+{
+	struct dasd_devmap *devmap;
+
+	devmap = dasd_find_busid(cdev->dev.bus_id);
+	if (IS_ERR(devmap))
+		return PTR_ERR(devmap);
+	spin_lock(&dasd_devmap_lock);
+	devmap->uid = *uid;
+	spin_unlock(&dasd_devmap_lock);
+	return 0;
+}
+EXPORT_SYMBOL(dasd_set_uid);
+
 /*
  * Return value of the specified feature.
  */
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index ee09ef33d08d..7d5a6cee4bd8 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -446,6 +446,39 @@ dasd_eckd_cdl_reclen(int recid)
 	return LABEL_SIZE;
 }
 
+/*
+ * Generate device unique id that specifies the physical device.
+ */
+static int
+dasd_eckd_generate_uid(struct dasd_device *device, struct dasd_uid *uid)
+{
+	struct dasd_eckd_private *private;
+	struct dasd_eckd_confdata *confdata;
+
+	private = (struct dasd_eckd_private *) device->private;
+	if (!private)
+		return -ENODEV;
+	confdata = &private->conf_data;
+	if (!confdata)
+		return -ENODEV;
+
+	memset(uid, 0, sizeof(struct dasd_uid));
+	strncpy(uid->vendor, confdata->ned1.HDA_manufacturer,
+		sizeof(uid->vendor) - 1);
+	EBCASC(uid->vendor, sizeof(uid->vendor) - 1);
+	strncpy(uid->serial, confdata->ned1.HDA_location,
+		sizeof(uid->serial) - 1);
+	EBCASC(uid->serial, sizeof(uid->serial) - 1);
+	uid->ssid = confdata->neq.subsystemID;
+	if (confdata->ned2.sneq.flags == 0x40) {
+		uid->alias = 1;
+		uid->unit_addr = confdata->ned2.sneq.base_unit_addr;
+	} else
+		uid->unit_addr = confdata->ned1.unit_addr;
+
+	return 0;
+}
+
 static int
 dasd_eckd_read_conf(struct dasd_device *device)
 {
@@ -507,11 +540,15 @@ dasd_eckd_read_conf(struct dasd_device *device)
 	return 0;
 }
 
-
+/*
+ * Check device characteristics.
+ * If the device is accessible using ECKD discipline, the device is enabled.
+ */
 static int
 dasd_eckd_check_characteristics(struct dasd_device *device)
 {
 	struct dasd_eckd_private *private;
+	struct dasd_uid uid;
 	void *rdc_data;
 	int rc;
 
@@ -536,6 +573,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 
 	/* Read Device Characteristics */
 	rdc_data = (void *) &(private->rdc_data);
+	memset(rdc_data, 0, sizeof(rdc_data));
 	rc = read_dev_chars(device->cdev, &rdc_data, 64);
 	if (rc) {
 		DEV_MESSAGE(KERN_WARNING, device,
@@ -556,8 +594,17 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 
 	/* Read Configuration Data */
 	rc = dasd_eckd_read_conf (device);
-	return rc;
+	if (rc)
+		return rc;
+
+	/* Generate device unique id and register in devmap */
+	rc = dasd_eckd_generate_uid(device, &uid);
+	if (rc)
+		return rc;
 
+	rc = dasd_set_uid(device->cdev, &uid);
+
+	return rc;
 }
 
 static struct dasd_ccw_req *
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index ad8524bb7bb3..d5734e976e1c 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -228,26 +228,36 @@ struct dasd_eckd_confdata {
 		unsigned char HDA_manufacturer[3];
 		unsigned char HDA_location[2];
 		unsigned char HDA_seqno[12];
-		__u16 ID;
+		__u8 ID;
+		__u8 unit_addr;
 	} __attribute__ ((packed)) ned1;
-	struct {
+	union {
 		struct {
-			unsigned char identifier:2;
-			unsigned char token_id:1;
-			unsigned char sno_valid:1;
-			unsigned char subst_sno:1;
-			unsigned char recNED:1;
-			unsigned char emuNED:1;
-			unsigned char reserved:1;
-		} __attribute__ ((packed)) flags;
-		__u8 descriptor;
-		__u8 reserved[2];
-		unsigned char dev_type[6];
-		unsigned char dev_model[3];
-		unsigned char DASD_manufacturer[3];
-		unsigned char DASD_location[2];
-		unsigned char DASD_seqno[12];
-		__u16 ID;
+			struct {
+				unsigned char identifier:2;
+				unsigned char token_id:1;
+				unsigned char sno_valid:1;
+				unsigned char subst_sno:1;
+				unsigned char recNED:1;
+				unsigned char emuNED:1;
+				unsigned char reserved:1;
+			} __attribute__ ((packed)) flags;
+			__u8 descriptor;
+			__u8 reserved[2];
+			unsigned char dev_type[6];
+			unsigned char dev_model[3];
+			unsigned char DASD_manufacturer[3];
+			unsigned char DASD_location[2];
+			unsigned char DASD_seqno[12];
+			__u16 ID;
+		} __attribute__ ((packed)) ned;
+		struct {
+			unsigned char flags;            /* byte  0    */
+			unsigned char res2[7];          /* byte  1- 7 */
+			unsigned char sua_flags;	/* byte  8    */
+			__u8 base_unit_addr;            /* byte  9    */
+			unsigned char res3[22];	        /* byte 10-31 */
+		} __attribute__ ((packed)) sneq;
 	} __attribute__ ((packed)) ned2;
 	struct {
 		struct {
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 4293ba827523..d4b13e300a76 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -268,6 +268,16 @@ struct dasd_discipline {
 
 extern struct dasd_discipline *dasd_diag_discipline_pointer;
 
+/*
+ * Unique identifier for dasd device.
+ */
+struct dasd_uid {
+	__u8 alias;
+	char vendor[4];
+	char serial[15];
+	__u16 ssid;
+	__u8 unit_addr;
+};
 
 /*
  * Notification numbers for extended error reporting notifications:
@@ -516,6 +526,8 @@ void dasd_devmap_exit(void);
 struct dasd_device *dasd_create_device(struct ccw_device *);
 void dasd_delete_device(struct dasd_device *);
 
+int dasd_get_uid(struct ccw_device *, struct dasd_uid *);
+int dasd_set_uid(struct ccw_device *, struct dasd_uid *);
 int dasd_get_feature(struct ccw_device *, int);
 int dasd_set_feature(struct ccw_device *, int, int);
 
diff --git a/drivers/s390/char/tape_3590.c b/drivers/s390/char/tape_3590.c
index c3915f60a3aa..d71ef1adea59 100644
--- a/drivers/s390/char/tape_3590.c
+++ b/drivers/s390/char/tape_3590.c
@@ -230,14 +230,16 @@ tape_3590_read_attmsg(struct tape_device *device)
  * These functions are used to schedule follow-up actions from within an
  * interrupt context (like unsolicited interrupts).
  */
+struct work_handler_data {
+	struct tape_device *device;
+	enum tape_op        op;
+	struct work_struct  work;
+};
+
 static void
 tape_3590_work_handler(void *data)
 {
-	struct {
-		struct tape_device *device;
-		enum tape_op op;
-		struct work_struct work;
-	} *p = data;
+	struct work_handler_data *p = data;
 
 	switch (p->op) {
 	case TO_MSEN:
@@ -257,11 +259,7 @@ tape_3590_work_handler(void *data)
 static int
 tape_3590_schedule_work(struct tape_device *device, enum tape_op op)
 {
-	struct {
-		struct tape_device *device;
-		enum tape_op op;
-		struct work_struct work;
-	} *p;
+	struct work_handler_data *p;
 
 	if ((p = kzalloc(sizeof(*p), GFP_ATOMIC)) == NULL)
 		return -ENOMEM;
@@ -316,7 +314,7 @@ tape_3590_bread(struct tape_device *device, struct request *req)
 
 	rq_for_each_bio(bio, req) {
 		bio_for_each_segment(bv, bio, i) {
-			dst = kmap(bv->bv_page) + bv->bv_offset;
+			dst = page_address(bv->bv_page) + bv->bv_offset;
 			for (off = 0; off < bv->bv_len;
 			     off += TAPEBLOCK_HSEC_SIZE) {
 				ccw->flags = CCW_FLAG_CC;
@@ -1168,6 +1166,7 @@ tape_3590_setup_device(struct tape_device *device)
 static void
 tape_3590_cleanup_device(struct tape_device *device)
 {
+	flush_scheduled_work();
 	tape_std_unassign(device);
 
 	kfree(device->discdata);
@@ -1234,6 +1233,7 @@ static struct tape_discipline tape_discipline_3590 = {
 
 static struct ccw_device_id tape_3590_ids[] = {
 	{CCW_DEVICE_DEVTYPE(0x3590, 0, 0x3590, 0), .driver_info = tape_3590},
+	{CCW_DEVICE_DEVTYPE(0x3592, 0, 0x3592, 0), .driver_info = tape_3592},
 	{ /* end of list */ }
 };
 
diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
index 2d311798edf4..1fc952359341 100644
--- a/drivers/s390/char/tape_std.h
+++ b/drivers/s390/char/tape_std.h
@@ -153,6 +153,7 @@ enum s390_tape_type {
         tape_3480,
         tape_3490,
         tape_3590,
+        tape_3592,
 };
 
 #endif // _TAPE_STD_H
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index 6412b2c3edd3..72187e54dcac 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -242,28 +242,10 @@ s390_subchannel_remove_chpid(struct device *dev, void *data)
 	if (sch->vpm == mask)
 		goto out_unreg;
 
-	if ((sch->schib.scsw.actl & (SCSW_ACTL_CLEAR_PEND |
-				     SCSW_ACTL_HALT_PEND |
-				     SCSW_ACTL_START_PEND |
-				     SCSW_ACTL_RESUME_PEND)) &&
-	    (sch->schib.pmcw.lpum == mask)) {
-		int cc = cio_cancel(sch);
-		
-		if (cc == -ENODEV)
-			goto out_unreg;
-
-		if (cc == -EINVAL) {
-			cc = cio_clear(sch);
-			if (cc == -ENODEV)
-				goto out_unreg;
-			/* Call handler. */
-			if (sch->driver && sch->driver->termination)
-				sch->driver->termination(&sch->dev);
-			goto out_unlock;
-		}
-	} else if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
-		   (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
-		   (sch->schib.pmcw.lpum == mask)) {
+	if ((sch->schib.scsw.actl & SCSW_ACTL_DEVACT) &&
+	    (sch->schib.scsw.actl & SCSW_ACTL_SCHACT) &&
+	    (sch->schib.pmcw.lpum == mask) &&
+	    (sch->vpm == 0)) {
 		int cc;
 
 		cc = cio_clear(sch);
@@ -653,13 +635,13 @@ __chp_add(struct subchannel_id schid, void *data)
 		if (sch->schib.pmcw.chpid[i] == chp->id) {
 			if (stsch(sch->schid, &sch->schib) != 0) {
 				/* Endgame. */
-				spin_unlock(&sch->lock);
+				spin_unlock_irq(&sch->lock);
 				return -ENXIO;
 			}
 			break;
 		}
 	if (i==8) {
-		spin_unlock(&sch->lock);
+		spin_unlock_irq(&sch->lock);
 		return 0;
 	}
 	sch->lpm = ((sch->schib.pmcw.pim &
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 74a257b23383..e210f89a2449 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -45,11 +45,11 @@ struct pgid {
 	union {
 		__u8 fc;   	/* SPID function code */
 		struct path_state ps;	/* SNID path state */
-	} inf;
+	} __attribute__ ((packed)) inf;
 	union {
 		__u32 cpu_addr	: 16;	/* CPU address */
 		struct extended_cssid ext_cssid;
-	} pgid_high;
+	} __attribute__ ((packed)) pgid_high;
 	__u32 cpu_id	: 24;	/* CPU identification */
 	__u32 cpu_model : 16;	/* CPU model */
 	__u32 tod_high;		/* high word TOD clock */
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 180b3bf8b90d..49ec562d7f60 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -749,7 +749,7 @@ ccw_device_irq(struct ccw_device *cdev, enum dev_event dev_event)
 			/* Unit check but no sense data. Need basic sense. */
 			if (ccw_device_do_sense(cdev, irb) != 0)
 				goto call_handler_unsol;
-			memcpy(irb, &cdev->private->irb, sizeof(struct irb));
+			memcpy(&cdev->private->irb, irb, sizeof(struct irb));
 			cdev->private->state = DEV_STATE_W4SENSE;
 			cdev->private->intparm = 0;
 			return;
diff --git a/drivers/s390/cio/qdio.c b/drivers/s390/cio/qdio.c
index 814f9258ce00..96f519281d92 100644
--- a/drivers/s390/cio/qdio.c
+++ b/drivers/s390/cio/qdio.c
@@ -38,6 +38,7 @@
 #include <linux/kernel.h>
 #include <linux/proc_fs.h>
 #include <linux/timer.h>
+#include <linux/mempool.h>
 
 #include <asm/ccwdev.h>
 #include <asm/io.h>
@@ -80,6 +81,8 @@ static int indicator_used[INDICATORS_PER_CACHELINE];
 static __u32 * volatile indicators;
 static __u32 volatile spare_indicator;
 static atomic_t spare_indicator_usecount;
+#define QDIO_MEMPOOL_SCSSC_ELEMENTS 2
+static mempool_t *qdio_mempool_scssc;
 
 static debug_info_t *qdio_dbf_setup;
 static debug_info_t *qdio_dbf_sbal;
@@ -1637,7 +1640,7 @@ next:
 
 	}
 	kfree(irq_ptr->qdr);
-	kfree(irq_ptr);
+	free_page((unsigned long) irq_ptr);
 }
 
 static void
@@ -2304,7 +2307,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
 
 	QDIO_DBF_TEXT0(0,setup,"getssqd");
 	qdioac = 0;
-	ssqd_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	ssqd_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
 	if (!ssqd_area) {
 	        QDIO_PRINT_WARN("Could not get memory for chsc. Using all " \
 				"SIGAs for sch x%x.\n", irq_ptr->schid.sch_no);
@@ -2364,7 +2367,7 @@ qdio_get_ssqd_information(struct qdio_irq *irq_ptr)
 out:
 	qdio_check_subchannel_qebsm(irq_ptr, qdioac,
 				    ssqd_area->sch_token);
-	free_page ((unsigned long) ssqd_area);
+	mempool_free(ssqd_area, qdio_mempool_scssc);
 	irq_ptr->qdioac = qdioac;
 }
 
@@ -2458,7 +2461,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
 			virt_to_phys((volatile void *)irq_ptr->dev_st_chg_ind);
 	}
 
-	scssc_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	scssc_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
 	if (!scssc_area) {
 		QDIO_PRINT_WARN("No memory for setting indicators on " \
 				"subchannel 0.%x.%x.\n",
@@ -2514,7 +2517,7 @@ tiqdio_set_subchannel_ind(struct qdio_irq *irq_ptr, int reset_to_zero)
 	QDIO_DBF_HEX2(0,setup,&real_addr_dev_st_chg_ind,sizeof(unsigned long));
 	result = 0;
 out:
-	free_page ((unsigned long) scssc_area);
+	mempool_free(scssc_area, qdio_mempool_scssc);
 	return result;
 
 }
@@ -2543,7 +2546,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target)
 	if (!irq_ptr->is_thinint_irq)
 		return -ENODEV;
 
-	scsscf_area = (void *)get_zeroed_page(GFP_KERNEL | GFP_DMA);
+	scsscf_area = mempool_alloc(qdio_mempool_scssc, GFP_ATOMIC);
 	if (!scsscf_area) {
 		QDIO_PRINT_WARN("No memory for setting delay target on " \
 				"subchannel 0.%x.%x.\n",
@@ -2581,7 +2584,7 @@ tiqdio_set_delay_target(struct qdio_irq *irq_ptr, unsigned long delay_target)
 	QDIO_DBF_HEX2(0,trace,&delay_target,sizeof(unsigned long));
 	result = 0; /* not critical */
 out:
-	free_page ((unsigned long) scsscf_area);
+	mempool_free(scsscf_area, qdio_mempool_scssc);
 	return result;
 }
 
@@ -2980,7 +2983,7 @@ qdio_allocate(struct qdio_initialize *init_data)
 	qdio_allocate_do_dbf(init_data);
 
 	/* create irq */
-	irq_ptr = kzalloc(sizeof(struct qdio_irq), GFP_KERNEL | GFP_DMA);
+	irq_ptr = (void *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
 
 	QDIO_DBF_TEXT0(0,setup,"irq_ptr:");
 	QDIO_DBF_HEX0(0,setup,&irq_ptr,sizeof(void*));
@@ -2995,7 +2998,7 @@ qdio_allocate(struct qdio_initialize *init_data)
 	/* QDR must be in DMA area since CCW data address is only 32 bit */
 	irq_ptr->qdr=kmalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA);
   	if (!(irq_ptr->qdr)) {
-   		kfree(irq_ptr);
+   		free_page((unsigned long) irq_ptr);
     		QDIO_PRINT_ERR("kmalloc of irq_ptr->qdr failed!\n");
 		return -ENOMEM;
        	}
@@ -3780,6 +3783,16 @@ oom:
 	return -ENOMEM;
 }
 
+static void *qdio_mempool_alloc(gfp_t gfp_mask, void *size)
+{
+	return (void *) get_zeroed_page(gfp_mask|GFP_DMA);
+}
+
+static void qdio_mempool_free(void *element, void *size)
+{
+	free_page((unsigned long) element);
+}
+
 static int __init
 init_QDIO(void)
 {
@@ -3809,6 +3822,10 @@ init_QDIO(void)
 
 	qdio_add_procfs_entry();
 
+	qdio_mempool_scssc = mempool_create(QDIO_MEMPOOL_SCSSC_ELEMENTS,
+					    qdio_mempool_alloc,
+					    qdio_mempool_free, NULL);
+
 	if (tiqdio_check_chsc_availability())
 		QDIO_PRINT_ERR("Not all CHSCs supported. Continuing.\n");
 
@@ -3824,6 +3841,7 @@ cleanup_QDIO(void)
 	qdio_remove_procfs_entry();
 	qdio_release_qdio_memory();
 	qdio_unregister_dbf_views();
+	mempool_destroy(qdio_mempool_scssc);
 
   	printk("qdio: %s: module removed\n",version);
 }
diff --git a/drivers/s390/net/ctcmain.c b/drivers/s390/net/ctcmain.c
index af9f212314b3..fe986af884f8 100644
--- a/drivers/s390/net/ctcmain.c
+++ b/drivers/s390/net/ctcmain.c
@@ -1486,13 +1486,13 @@ ch_action_iofatal(fsm_instance * fi, int event, void *arg)
 	}
 }
 
-static void 
+static void
 ch_action_reinit(fsm_instance *fi, int event, void *arg)
 {
  	struct channel *ch = (struct channel *)arg;
  	struct net_device *dev = ch->netdev;
  	struct ctc_priv *privptr = dev->priv;
- 
+
 	DBF_TEXT(trace, 4, __FUNCTION__);
  	ch_action_iofatal(fi, event, arg);
  	fsm_addtimer(&privptr->restart_timer, 1000, DEV_EVENT_RESTART, dev);
@@ -1624,7 +1624,7 @@ less_than(char *id1, char *id2)
 	}
 	dev1 = simple_strtoul(id1, &id1, 16);
 	dev2 = simple_strtoul(id2, &id2, 16);
-	
+
 	return (dev1 < dev2);
 }
 
@@ -1895,7 +1895,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 			    irb->scsw.dstat);
 		return;
 	}
-	
+
 	priv = ((struct ccwgroup_device *)cdev->dev.driver_data)
 		->dev.driver_data;
 
@@ -1909,7 +1909,7 @@ ctc_irq_handler(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 			   "device %s\n", cdev->dev.bus_id);
 		return;
 	}
-	
+
 	dev = (struct net_device *) (ch->netdev);
 	if (dev == NULL) {
 		ctc_pr_crit("ctc: ctc_irq_handler dev=NULL bus_id=%s, ch=0x%p\n",
@@ -2008,12 +2008,12 @@ dev_action_stop(fsm_instance * fi, int event, void *arg)
 		fsm_event(ch->fsm, CH_EVENT_STOP, ch);
 	}
 }
-static void 
+static void
 dev_action_restart(fsm_instance *fi, int event, void *arg)
 {
 	struct net_device *dev = (struct net_device *)arg;
 	struct ctc_priv *privptr = dev->priv;
-	
+
 	DBF_TEXT(trace, 3, __FUNCTION__);
 	ctc_pr_debug("%s: Restarting\n", dev->name);
 	dev_action_stop(fi, event, arg);
@@ -2193,7 +2193,7 @@ transmit_skb(struct channel *ch, struct sk_buff *skb)
 
 	DBF_TEXT(trace, 5, __FUNCTION__);
 	/* we need to acquire the lock for testing the state
-	 * otherwise we can have an IRQ changing the state to 
+	 * otherwise we can have an IRQ changing the state to
 	 * TXIDLE after the test but before acquiring the lock.
 	 */
 	spin_lock_irqsave(&ch->collect_lock, saveflags);
@@ -2393,7 +2393,7 @@ ctc_tx(struct sk_buff *skb, struct net_device * dev)
 
 	/**
 	 * If channels are not running, try to restart them
-	 * and throw away packet. 
+	 * and throw away packet.
 	 */
 	if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) {
 		fsm_event(privptr->fsm, DEV_EVENT_START, dev);
@@ -2738,7 +2738,7 @@ ctc_remove_files(struct device *dev)
 /**
  * Add ctc specific attributes.
  * Add ctc private data.
- * 
+ *
  * @param cgdev pointer to ccwgroup_device just added
  *
  * @returns 0 on success, !0 on failure.
@@ -2869,7 +2869,7 @@ ctc_new_device(struct ccwgroup_device *cgdev)
 	DBF_TEXT(setup, 3, buffer);
 
 	type = get_channel_type(&cgdev->cdev[0]->id);
-	
+
 	snprintf(read_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[0]->dev.bus_id);
 	snprintf(write_id, CTC_ID_SIZE, "ch-%s", cgdev->cdev[1]->dev.bus_id);
 
@@ -2907,7 +2907,7 @@ ctc_new_device(struct ccwgroup_device *cgdev)
 		    channel_get(type, direction == READ ? read_id : write_id,
 				direction);
 		if (privptr->channel[direction] == NULL) {
-			if (direction == WRITE) 
+			if (direction == WRITE)
 				channel_free(privptr->channel[READ]);
 
 			ctc_free_netdevice(dev, 1);
@@ -2955,7 +2955,7 @@ ctc_shutdown_device(struct ccwgroup_device *cgdev)
 {
 	struct ctc_priv *priv;
 	struct net_device *ndev;
-		
+
 	DBF_TEXT(setup, 3, __FUNCTION__);
 	pr_debug("%s() called\n", __FUNCTION__);
 
diff --git a/drivers/s390/net/ctctty.c b/drivers/s390/net/ctctty.c
index 5cdcdbf92962..af54d1de07bf 100644
--- a/drivers/s390/net/ctctty.c
+++ b/drivers/s390/net/ctctty.c
@@ -130,7 +130,7 @@ ctc_tty_readmodem(ctc_tty_info *info)
 	if ((tty = info->tty)) {
 		if (info->mcr & UART_MCR_RTS) {
 			struct sk_buff *skb;
-			
+
 			if ((skb = skb_dequeue(&info->rx_queue))) {
 				int len = skb->len;
 				tty_insert_flip_string(tty, skb->data, len);
@@ -328,7 +328,7 @@ ctc_tty_inject(ctc_tty_info *info, char c)
 {
 	int skb_res;
 	struct sk_buff *skb;
-	
+
 	DBF_TEXT(trace, 4, __FUNCTION__);
 	if (ctc_tty_shuttingdown)
 		return;
@@ -497,7 +497,7 @@ ctc_tty_write(struct tty_struct *tty, const u_char * buf, int count)
 		c = (count < CTC_TTY_XMIT_SIZE) ? count : CTC_TTY_XMIT_SIZE;
 		if (c <= 0)
 			break;
-		
+
 		skb_res = info->netdev->hard_header_len + sizeof(info->mcr) +
 			+ sizeof(__u32);
 		skb = dev_alloc_skb(skb_res + c);
@@ -828,7 +828,7 @@ ctc_tty_block_til_ready(struct tty_struct *tty, struct file *filp, ctc_tty_info
 	if (tty_hung_up_p(filp) ||
 	    (info->flags & CTC_ASYNC_CLOSING)) {
 		if (info->flags & CTC_ASYNC_CLOSING)
-			wait_event(info->close_wait, 
+			wait_event(info->close_wait,
 				   !(info->flags & CTC_ASYNC_CLOSING));
 #ifdef MODEM_DO_RESTART
 		if (info->flags & CTC_ASYNC_HUP_NOTIFY)
@@ -1247,7 +1247,7 @@ ctc_tty_unregister_netdev(struct net_device *dev) {
 void
 ctc_tty_cleanup(void) {
 	unsigned long saveflags;
-	
+
 	DBF_TEXT(trace, 2, __FUNCTION__);
 	spin_lock_irqsave(&ctc_tty_lock, saveflags);
 	ctc_tty_shuttingdown = 1;
diff --git a/drivers/s390/net/cu3088.c b/drivers/s390/net/cu3088.c
index b12533104c1f..e965f03a7291 100644
--- a/drivers/s390/net/cu3088.c
+++ b/drivers/s390/net/cu3088.c
@@ -20,7 +20,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  */
-
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/err.h>
@@ -77,7 +77,7 @@ group_write(struct device_driver *drv, const char *buf, size_t count)
 		int len;
 
 		if (!(end = strchr(start, delim[i])))
-			return count;
+			return -EINVAL;
 		len = min_t(ptrdiff_t, BUS_ID_SIZE, end - start + 1);
 		strlcpy (bus_ids[i], start, len);
 		argv[i] = bus_ids[i];
@@ -94,7 +94,7 @@ static DRIVER_ATTR(group, 0200, NULL, group_write);
 
 /* Register-unregister for ctc&lcs */
 int
-register_cu3088_discipline(struct ccwgroup_driver *dcp) 
+register_cu3088_discipline(struct ccwgroup_driver *dcp)
 {
 	int rc;
 
@@ -109,7 +109,7 @@ register_cu3088_discipline(struct ccwgroup_driver *dcp)
 	rc = driver_create_file(&dcp->driver, &driver_attr_group);
 	if (rc)
 		ccwgroup_driver_unregister(dcp);
-		
+
 	return rc;
 
 }
@@ -137,7 +137,7 @@ static int __init
 cu3088_init (void)
 {
 	int rc;
-	
+
 	cu3088_root_dev = s390_root_dev_register("cu3088");
 	if (IS_ERR(cu3088_root_dev))
 		return PTR_ERR(cu3088_root_dev);
diff --git a/drivers/s390/net/iucv.c b/drivers/s390/net/iucv.c
index 6190be9dca99..e0c7deb98831 100644
--- a/drivers/s390/net/iucv.c
+++ b/drivers/s390/net/iucv.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * IUCV network driver
  *
  * Copyright (C) 2001 IBM Deutschland Entwicklung GmbH, IBM Corporation
@@ -28,7 +28,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  */
-
+
 /* #define DEBUG */
 
 #include <linux/module.h>
@@ -81,7 +81,7 @@ iucv_bus_match (struct device *dev, struct device_driver *drv)
 struct bus_type iucv_bus = {
 	.name = "iucv",
 	.match = iucv_bus_match,
-};	
+};
 
 struct device *iucv_root;
 
@@ -297,7 +297,7 @@ MODULE_LICENSE("GPL");
 /*
  * Debugging stuff
  *******************************************************************************/
-
+
 
 #ifdef DEBUG
 static int debuglevel = 0;
@@ -344,7 +344,7 @@ do { \
 /*
  * Internal functions
  *******************************************************************************/
-
+
 /**
  * print start banner
  */
@@ -810,7 +810,7 @@ iucv_register_program (__u8 pgmname[16],
 			sizeof (new_handler->id.userid));
 		EBC_TOUPPER (new_handler->id.userid,
 			     sizeof (new_handler->id.userid));
-		
+
 		if (pgmmask) {
 			memcpy (new_handler->id.mask, pgmmask,
 				sizeof (new_handler->id.mask));
@@ -1229,7 +1229,7 @@ iucv_purge (__u16 pathid, __u32 msgid, __u32 srccls, __u32 *audit)
 		/* parm->ipaudit has only 3 bytes */
 		*audit >>= 8;
 	}
-	
+
 	release_param(parm);
 
 	iucv_debug(1, "b2f0_result = %ld", b2f0_result);
@@ -2330,14 +2330,14 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 					temp_buff1[j] &= (h->id.mask)[j];
 					temp_buff2[j] &= (h->id.mask)[j];
 				}
-				
+
 				iucv_dumpit("temp_buff1:",
 					    temp_buff1, sizeof(temp_buff1));
 				iucv_dumpit("temp_buff2",
 					    temp_buff2, sizeof(temp_buff2));
-				
+
 				if (!memcmp (temp_buff1, temp_buff2, 24)) {
-					
+
 					iucv_debug(2,
 						   "found a matching handler");
 					break;
@@ -2368,7 +2368,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 			} else
 				iucv_sever(int_buf->ippathid, no_listener);
 			break;
-			
+
 		case 0x02:		/*connection complete */
 			if (messagesDisabled) {
 			    iucv_setmask(~0);
@@ -2387,7 +2387,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 			} else
 				iucv_sever(int_buf->ippathid, no_listener);
 			break;
-			
+
 		case 0x03:		/* connection severed */
 			if (messagesDisabled) {
 			    iucv_setmask(~0);
@@ -2398,13 +2398,13 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 					interrupt->ConnectionSevered(
 						(iucv_ConnectionSevered *)int_buf,
 						h->pgm_data);
-				
+
 				else
 					iucv_sever (int_buf->ippathid, no_listener);
 			} else
 				iucv_sever(int_buf->ippathid, no_listener);
 			break;
-			
+
 		case 0x04:		/* connection quiesced */
 			if (messagesDisabled) {
 			    iucv_setmask(~0);
@@ -2420,7 +2420,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 						   "ConnectionQuiesced not called");
 			}
 			break;
-			
+
 		case 0x05:		/* connection resumed */
 			if (messagesDisabled) {
 			    iucv_setmask(~0);
@@ -2436,7 +2436,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 						   "ConnectionResumed not called");
 			}
 			break;
-			
+
 		case 0x06:		/* priority message complete */
 		case 0x07:		/* nonpriority message complete */
 			if (h) {
@@ -2449,7 +2449,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 						   "MessageComplete not called");
 			}
 			break;
-			
+
 		case 0x08:		/* priority message pending  */
 		case 0x09:		/* nonpriority message pending  */
 			if (h) {
@@ -2467,7 +2467,7 @@ iucv_do_int(iucv_GeneralInterrupt * int_buf)
 			       __FUNCTION__);
 			break;
 	}			/* end switch */
-	
+
 	iucv_debug(2, "exiting pathid %d, type %02X",
 		 int_buf->ippathid, int_buf->iptype);
 
diff --git a/drivers/s390/net/iucv.h b/drivers/s390/net/iucv.h
index 0c4644d3d2f3..5b6b1b7241c9 100644
--- a/drivers/s390/net/iucv.h
+++ b/drivers/s390/net/iucv.h
@@ -4,7 +4,7 @@
  *
  *  S390 version
  *    Copyright (C) 2000 IBM Corporation
- *    Author(s):Alan Altmark (Alan_Altmark@us.ibm.com) 
+ *    Author(s):Alan Altmark (Alan_Altmark@us.ibm.com)
  *		Xenia Tkatschow (xenia@us.ibm.com)
  *
  *
@@ -16,17 +16,17 @@
  * CP Programming Services book, also available on the web
  * thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
  *
- *      Definition of Return Codes                                    
- *      -All positive return codes including zero are reflected back  
- *       from CP except for iucv_register_program. The definition of each 
- *       return code can be found in CP Programming Services book.    
- *       Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760          
- *      - Return Code of:         
- *             (-EINVAL) Invalid value       
- *             (-ENOMEM) storage allocation failed              
+ *      Definition of Return Codes
+ *      -All positive return codes including zero are reflected back
+ *       from CP except for iucv_register_program. The definition of each
+ *       return code can be found in CP Programming Services book.
+ *       Also available on the web thru www.ibm.com/s390/vm/pubs, manual # SC24-5760
+ *      - Return Code of:
+ *             (-EINVAL) Invalid value
+ *             (-ENOMEM) storage allocation failed
  *	pgmask defined in iucv_register_program will be set depending on input
- *	paramters. 
- *	
+ *	paramters.
+ *
  */
 
 #include <linux/types.h>
@@ -124,13 +124,13 @@ iucv_hex_dump(unsigned char *buf, size_t len)
 #define iucv_handle_t void *
 
 /* flags1:
- * All flags are defined in the field IPFLAGS1 of each function   
- * and can be found in CP Programming Services.                  
- * IPLOCAL  - Indicates the connect can only be satisfied on the 
- *            local system                                       
- * IPPRTY   - Indicates a priority message                       
- * IPQUSCE  - Indicates you do not want to receive messages on a 
- *            path until an iucv_resume is issued                
+ * All flags are defined in the field IPFLAGS1 of each function
+ * and can be found in CP Programming Services.
+ * IPLOCAL  - Indicates the connect can only be satisfied on the
+ *            local system
+ * IPPRTY   - Indicates a priority message
+ * IPQUSCE  - Indicates you do not want to receive messages on a
+ *            path until an iucv_resume is issued
  * IPRMDATA - Indicates that the message is in the parameter list
  */
 #define IPLOCAL   	0x01
@@ -154,14 +154,14 @@ iucv_hex_dump(unsigned char *buf, size_t len)
 #define AllInterrupts                                    0xf8
 /*
  * Mapping of external interrupt buffers should be used with the corresponding
- * interrupt types.                  
- * Names: iucv_ConnectionPending    ->  connection pending 
+ * interrupt types.
+ * Names: iucv_ConnectionPending    ->  connection pending
  *        iucv_ConnectionComplete   ->  connection complete
- *        iucv_ConnectionSevered    ->  connection severed 
- *        iucv_ConnectionQuiesced   ->  connection quiesced 
- *        iucv_ConnectionResumed    ->  connection resumed 
- *        iucv_MessagePending       ->  message pending    
- *        iucv_MessageComplete      ->  message complete   
+ *        iucv_ConnectionSevered    ->  connection severed
+ *        iucv_ConnectionQuiesced   ->  connection quiesced
+ *        iucv_ConnectionResumed    ->  connection resumed
+ *        iucv_MessagePending       ->  message pending
+ *        iucv_MessageComplete      ->  message complete
  */
 typedef struct {
 	u16 ippathid;
@@ -260,16 +260,16 @@ typedef struct {
 	uchar res2[3];
 } iucv_MessageComplete;
 
-/* 
- * iucv_interrupt_ops_t: Is a vector of functions that handle 
- * IUCV interrupts.                                          
- * Parameter list:                                           
- *         eib - is a pointer to a 40-byte area described    
- *               with one of the structures above.           
- *         pgm_data - this data is strictly for the          
- *                    interrupt handler that is passed by    
- *                    the application. This may be an address 
- *                    or token.                              
+/*
+ * iucv_interrupt_ops_t: Is a vector of functions that handle
+ * IUCV interrupts.
+ * Parameter list:
+ *         eib - is a pointer to a 40-byte area described
+ *               with one of the structures above.
+ *         pgm_data - this data is strictly for the
+ *                    interrupt handler that is passed by
+ *                    the application. This may be an address
+ *                    or token.
 */
 typedef struct {
 	void (*ConnectionPending) (iucv_ConnectionPending * eib,
@@ -287,8 +287,8 @@ typedef struct {
 } iucv_interrupt_ops_t;
 
 /*
- *iucv_array_t : Defines buffer array.                      
- * Inside the array may be 31- bit addresses and 31-bit lengths. 
+ *iucv_array_t : Defines buffer array.
+ * Inside the array may be 31- bit addresses and 31-bit lengths.
 */
 typedef struct {
 	u32 address;
@@ -299,19 +299,19 @@ extern struct bus_type iucv_bus;
 extern struct device *iucv_root;
 
 /*   -prototypes-    */
-/*                                                                
- * Name: iucv_register_program                                    
- * Purpose: Registers an application with IUCV                    
- * Input: prmname - user identification                           
+/*
+ * Name: iucv_register_program
+ * Purpose: Registers an application with IUCV
+ * Input: prmname - user identification
  *        userid  - machine identification
  *        pgmmask - indicates which bits in the prmname and userid combined will be
  *  		    used to determine who is given control
- *        ops     - address of vector of interrupt handlers       
- *        pgm_data- application data passed to interrupt handlers 
- * Output: NA                                                     
- * Return: address of handler                                     
+ *        ops     - address of vector of interrupt handlers
+ *        pgm_data- application data passed to interrupt handlers
+ * Output: NA
+ * Return: address of handler
  *         (0) - Error occurred, registration not completed.
- * NOTE: Exact cause of failure will be recorded in syslog.                        
+ * NOTE: Exact cause of failure will be recorded in syslog.
 */
 iucv_handle_t iucv_register_program (uchar pgmname[16],
 				     uchar userid[8],
@@ -319,13 +319,13 @@ iucv_handle_t iucv_register_program (uchar pgmname[16],
 				     iucv_interrupt_ops_t * ops,
 				     void *pgm_data);
 
-/*                                                
- * Name: iucv_unregister_program                  
- * Purpose: Unregister application with IUCV      
- * Input: address of handler                      
- * Output: NA                                     
- * Return: (0) - Normal return                    
- *         (-EINVAL) - Internal error, wild pointer     
+/*
+ * Name: iucv_unregister_program
+ * Purpose: Unregister application with IUCV
+ * Input: address of handler
+ * Output: NA
+ * Return: (0) - Normal return
+ *         (-EINVAL) - Internal error, wild pointer
 */
 int iucv_unregister_program (iucv_handle_t handle);
 
@@ -333,7 +333,7 @@ int iucv_unregister_program (iucv_handle_t handle);
  * Name: iucv_accept
  * Purpose: This function is issued after the user receives a Connection Pending external
  *          interrupt and now wishes to complete the IUCV communication path.
- * Input:  pathid - u16 , Path identification number   
+ * Input:  pathid - u16 , Path identification number
  *         msglim_reqstd - u16, The number of outstanding messages requested.
  *         user_data - uchar[16], Data specified by the iucv_connect function.
  *	   flags1 - int, Contains options for this path.
@@ -358,34 +358,34 @@ int iucv_accept (u16 pathid,
 		 void *pgm_data, int *flags1_out, u16 * msglim);
 
 /*
- * Name: iucv_connect                                         
+ * Name: iucv_connect
  * Purpose: This function establishes an IUCV path. Although the connect may complete
- *	    successfully, you are not able to use the path until you receive an IUCV 
- *          Connection Complete external interrupt.            
- * Input: pathid - u16 *, Path identification number          
- *        msglim_reqstd - u16, Number of outstanding messages requested       
- *        user_data - uchar[16], 16-byte user data                    
+ *	    successfully, you are not able to use the path until you receive an IUCV
+ *          Connection Complete external interrupt.
+ * Input: pathid - u16 *, Path identification number
+ *        msglim_reqstd - u16, Number of outstanding messages requested
+ *        user_data - uchar[16], 16-byte user data
  *	  userid - uchar[8], User identification
- *        system_name - uchar[8], 8-byte identifying the system name 
+ *        system_name - uchar[8], 8-byte identifying the system name
  *	  flags1 - int, Contains options for this path.
  *          -IPPRTY -   0x20, Specifies if you want to send priority message.
  *          -IPRMDATA - 0x80, Specifies whether your program can handle a message
  *            	 in  the parameter list.
- *          -IPQUSCE -  0x40, Specifies whether you want to quiesce the path being	 
+ *          -IPQUSCE -  0x40, Specifies whether you want to quiesce the path being
  *		established.
- *          -IPLOCAL -  0X01, Allows an application to force the partner to be on 
+ *          -IPLOCAL -  0X01, Allows an application to force the partner to be on
  *		the local system. If local is specified then target class cannot be
- *		specified.                       
+ *		specified.
  *        flags1_out - int * Contains information about the path
  *           - IPPRTY - 0x20, Indicates you may send priority messages.
  *        msglim - * u16, Number of outstanding messages
- *        handle - iucv_handle_t, Address of handler                         
- *        pgm_data - void *, Application data passed to interrupt handlers              
+ *        handle - iucv_handle_t, Address of handler
+ *        pgm_data - void *, Application data passed to interrupt handlers
  * Output: return code from CP IUCV call
  *         rc - return code from iucv_declare_buffer
- *         -EINVAL - Invalid handle passed by application 
- *         -EINVAL - Pathid address is NULL 
- *         add_pathid_result - Return code from internal function add_pathid         
+ *         -EINVAL - Invalid handle passed by application
+ *         -EINVAL - Pathid address is NULL
+ *         add_pathid_result - Return code from internal function add_pathid
 */
 int
     iucv_connect (u16 * pathid,
@@ -397,16 +397,16 @@ int
 		  int *flags1_out,
 		  u16 * msglim, iucv_handle_t handle, void *pgm_data);
 
-/*                                                                     
- * Name: iucv_purge                                                    
- * Purpose: This function cancels a message that you have sent.        
- * Input: pathid - Path identification number.                          
+/*
+ * Name: iucv_purge
+ * Purpose: This function cancels a message that you have sent.
+ * Input: pathid - Path identification number.
  *        msgid - Specifies the message ID of the message to be purged.
- *        srccls - Specifies the source message class.                  
- * Output: audit - Contains information about asynchronous error       
- *                 that may have affected the normal completion        
- *                 of this message.                                    
- * Return: Return code from CP IUCV call.                           
+ *        srccls - Specifies the source message class.
+ * Output: audit - Contains information about asynchronous error
+ *                 that may have affected the normal completion
+ *                 of this message.
+ * Return: Return code from CP IUCV call.
 */
 int iucv_purge (u16 pathid, u32 msgid, u32 srccls, __u32 *audit);
 /*
@@ -426,38 +426,38 @@ ulong iucv_query_maxconn (void);
  */
 ulong iucv_query_bufsize (void);
 
-/*                                                                     
- * Name: iucv_quiesce                                                  
- * Purpose: This function temporarily suspends incoming messages on an 
- *          IUCV path. You can later reactivate the path by invoking   
- *          the iucv_resume function.                                  
- * Input: pathid - Path identification number                          
- *        user_data  - 16-bytes of user data                           
- * Output: NA                                                          
- * Return: Return code from CP IUCV call.                           
+/*
+ * Name: iucv_quiesce
+ * Purpose: This function temporarily suspends incoming messages on an
+ *          IUCV path. You can later reactivate the path by invoking
+ *          the iucv_resume function.
+ * Input: pathid - Path identification number
+ *        user_data  - 16-bytes of user data
+ * Output: NA
+ * Return: Return code from CP IUCV call.
 */
 int iucv_quiesce (u16 pathid, uchar user_data[16]);
 
-/*                                                                     
- * Name: iucv_receive                                                  
- * Purpose: This function receives messages that are being sent to you 
+/*
+ * Name: iucv_receive
+ * Purpose: This function receives messages that are being sent to you
  *          over established paths. Data will be returned in buffer for length of
  *          buflen.
- * Input: 
- *       pathid - Path identification number.                          
- *       buffer - Address of buffer to receive.                        
- *       buflen - Length of buffer to receive.                         
- *       msgid - Specifies the message ID.          
- *       trgcls - Specifies target class.                       
- * Output: 
+ * Input:
+ *       pathid - Path identification number.
+ *       buffer - Address of buffer to receive.
+ *       buflen - Length of buffer to receive.
+ *       msgid - Specifies the message ID.
+ *       trgcls - Specifies target class.
+ * Output:
  *	 flags1_out: int *, Contains information about this path.
  *         IPNORPY - 0x10 Specifies this is a one-way message and no reply is
- *	   expected.      
- *         IPPRTY  - 0x20 Specifies if you want to send priority message.       
+ *	   expected.
+ *         IPPRTY  - 0x20 Specifies if you want to send priority message.
  *         IPRMDATA - 0x80 specifies the data is contained in the parameter list
  *       residual_buffer - address of buffer updated by the number
  *                         of bytes you have received.
- *       residual_length -      
+ *       residual_length -
  *              Contains one of the following values, if the receive buffer is:
  *               The same length as the message, this field is zero.
  *               Longer than the message, this field contains the number of
@@ -466,8 +466,8 @@ int iucv_quiesce (u16 pathid, uchar user_data[16]);
  *                count (that is, the number of bytes remaining in the
  *                message that does not fit into the buffer. In this
  *                case b2f0_result = 5.
- * Return: Return code from CP IUCV call.                           
- *         (-EINVAL) - buffer address is pointing to NULL                   
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - buffer address is pointing to NULL
 */
 int iucv_receive (u16 pathid,
 		  u32 msgid,
@@ -477,16 +477,16 @@ int iucv_receive (u16 pathid,
 		  int *flags1_out,
 		  ulong * residual_buffer, ulong * residual_length);
 
- /*                                                                     
-  * Name: iucv_receive_array                                            
-  * Purpose: This function receives messages that are being sent to you 
+ /*
+  * Name: iucv_receive_array
+  * Purpose: This function receives messages that are being sent to you
   *          over established paths. Data will be returned in first buffer for
   *          length of first buffer.
-  * Input: pathid - Path identification number.                          
+  * Input: pathid - Path identification number.
   *        msgid - specifies the message ID.
   *        trgcls - Specifies target class.
-  *        buffer - Address of array of buffers.                         
-  *        buflen - Total length of buffers.                             
+  *        buffer - Address of array of buffers.
+  *        buflen - Total length of buffers.
   * Output:
   *        flags1_out: int *, Contains information about this path.
   *          IPNORPY - 0x10 Specifies this is a one-way message and no reply is
@@ -504,8 +504,8 @@ int iucv_receive (u16 pathid,
   *                count (that is, the number of bytes remaining in the
   *                message that does not fit into the buffer. In this
   *                case b2f0_result = 5.
-  * Return: Return code from CP IUCV call.                           
-  *         (-EINVAL) - Buffer address is NULL.       
+  * Return: Return code from CP IUCV call.
+  *         (-EINVAL) - Buffer address is NULL.
   */
 int iucv_receive_array (u16 pathid,
 			u32 msgid,
@@ -515,44 +515,44 @@ int iucv_receive_array (u16 pathid,
 			int *flags1_out,
 			ulong * residual_buffer, ulong * residual_length);
 
-/*                                                                       
- * Name: iucv_reject                                                     
- * Purpose: The reject function refuses a specified message. Between the 
- *          time you are notified of a message and the time that you     
- *          complete the message, the message may be rejected.           
- * Input: pathid - Path identification number.                            
- *        msgid - Specifies the message ID.                   
- *        trgcls - Specifies target class.                                
- * Output: NA                                                            
- * Return: Return code from CP IUCV call.                             
+/*
+ * Name: iucv_reject
+ * Purpose: The reject function refuses a specified message. Between the
+ *          time you are notified of a message and the time that you
+ *          complete the message, the message may be rejected.
+ * Input: pathid - Path identification number.
+ *        msgid - Specifies the message ID.
+ *        trgcls - Specifies target class.
+ * Output: NA
+ * Return: Return code from CP IUCV call.
 */
 int iucv_reject (u16 pathid, u32 msgid, u32 trgcls);
 
-/*                                                                     
- * Name: iucv_reply                                                    
- * Purpose: This function responds to the two-way messages that you    
- *          receive. You must identify completely the message to       
- *          which you wish to reply. ie, pathid, msgid, and trgcls.    
- * Input: pathid - Path identification number.                          
- *        msgid - Specifies the message ID.                
- *        trgcls - Specifies target class.                              
+/*
+ * Name: iucv_reply
+ * Purpose: This function responds to the two-way messages that you
+ *          receive. You must identify completely the message to
+ *          which you wish to reply. ie, pathid, msgid, and trgcls.
+ * Input: pathid - Path identification number.
+ *        msgid - Specifies the message ID.
+ *        trgcls - Specifies target class.
  *        flags1 - Option for path.
- *          IPPRTY- 0x20, Specifies if you want to send priority message.        
- *        buffer - Address of reply buffer.                             
- *        buflen - Length of reply buffer.                              
- * Output: residual_buffer - Address of buffer updated by the number 
- *                    of bytes you have moved.              
+ *          IPPRTY- 0x20, Specifies if you want to send priority message.
+ *        buffer - Address of reply buffer.
+ *        buflen - Length of reply buffer.
+ * Output: residual_buffer - Address of buffer updated by the number
+ *                    of bytes you have moved.
  *         residual_length - Contains one of the following values:
  *		If the answer buffer is the same length as the reply, this field
  *		 contains zero.
  *		If the answer buffer is longer than the reply, this field contains
- *		 the number of bytes remaining in the buffer.  
+ *		 the number of bytes remaining in the buffer.
  *		If the answer buffer is shorter than the reply, this field contains
  *		 a residual count (that is, the number of bytes remianing in the
  *		 reply that does not fit into the buffer. In this
  *               case b2f0_result = 5.
- * Return: Return code from CP IUCV call.                           
- *         (-EINVAL) - Buffer address is NULL.                               
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_reply (u16 pathid,
 		u32 msgid,
@@ -561,20 +561,20 @@ int iucv_reply (u16 pathid,
 		void *buffer, ulong buflen, ulong * residual_buffer,
 		ulong * residual_length);
 
-/*                                                                       
- * Name: iucv_reply_array                                                
- * Purpose: This function responds to the two-way messages that you      
- *          receive. You must identify completely the message to         
- *          which you wish to reply. ie, pathid, msgid, and trgcls.      
- *          The array identifies a list of addresses and lengths of      
- *          discontiguous buffers that contains the reply data.          
- * Input: pathid - Path identification number                            
- *        msgid - Specifies the message ID. 
- *        trgcls - Specifies target class.                                
+/*
+ * Name: iucv_reply_array
+ * Purpose: This function responds to the two-way messages that you
+ *          receive. You must identify completely the message to
+ *          which you wish to reply. ie, pathid, msgid, and trgcls.
+ *          The array identifies a list of addresses and lengths of
+ *          discontiguous buffers that contains the reply data.
+ * Input: pathid - Path identification number
+ *        msgid - Specifies the message ID.
+ *        trgcls - Specifies target class.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20, Specifies if you want to send priority message.
- *        buffer - Address of array of reply buffers.                     
- *        buflen - Total length of reply buffers.                         
+ *        buffer - Address of array of reply buffers.
+ *        buflen - Total length of reply buffers.
  * Output: residual_buffer - Address of buffer which IUCV is currently working on.
  *         residual_length - Contains one of the following values:
  *              If the answer buffer is the same length as the reply, this field
@@ -585,8 +585,8 @@ int iucv_reply (u16 pathid,
  *               a residual count (that is, the number of bytes remianing in the
  *               reply that does not fit into the buffer. In this
  *               case b2f0_result = 5.
- * Return: Return code from CP IUCV call.                             
- *         (-EINVAL) - Buffer address is NULL.              
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_reply_array (u16 pathid,
 		      u32 msgid,
@@ -596,77 +596,77 @@ int iucv_reply_array (u16 pathid,
 		      ulong buflen, ulong * residual_address,
 		      ulong * residual_length);
 
-/*                                                                  
- * Name: iucv_reply_prmmsg                                          
- * Purpose: This function responds to the two-way messages that you 
- *          receive. You must identify completely the message to    
- *          which you wish to reply. ie, pathid, msgid, and trgcls. 
- *          Prmmsg signifies the data is moved into the             
- *          parameter list.                                         
- * Input: pathid - Path identification number.                       
- *        msgid - Specifies the message ID.              
- *        trgcls - Specifies target class.                           
+/*
+ * Name: iucv_reply_prmmsg
+ * Purpose: This function responds to the two-way messages that you
+ *          receive. You must identify completely the message to
+ *          which you wish to reply. ie, pathid, msgid, and trgcls.
+ *          Prmmsg signifies the data is moved into the
+ *          parameter list.
+ * Input: pathid - Path identification number.
+ *        msgid - Specifies the message ID.
+ *        trgcls - Specifies target class.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 Specifies if you want to send priority message.
- *        prmmsg - 8-bytes of data to be placed into the parameter.  
- *                 list.                                            
- * Output: NA                                                       
- * Return: Return code from CP IUCV call.                        
+ *        prmmsg - 8-bytes of data to be placed into the parameter.
+ *                 list.
+ * Output: NA
+ * Return: Return code from CP IUCV call.
 */
 int iucv_reply_prmmsg (u16 pathid,
 		       u32 msgid, u32 trgcls, int flags1, uchar prmmsg[8]);
 
-/*                                                                     
- * Name: iucv_resume                                                   
- * Purpose: This function restores communications over a quiesced path 
- * Input: pathid - Path identification number.                          
- *        user_data  - 16-bytes of user data.                           
- * Output: NA                                                          
- * Return: Return code from CP IUCV call.                           
+/*
+ * Name: iucv_resume
+ * Purpose: This function restores communications over a quiesced path
+ * Input: pathid - Path identification number.
+ *        user_data  - 16-bytes of user data.
+ * Output: NA
+ * Return: Return code from CP IUCV call.
 */
 int iucv_resume (u16 pathid, uchar user_data[16]);
 
-/*                                                                   
- * Name: iucv_send                                                   
- * Purpose: This function transmits data to another application.     
- *          Data to be transmitted is in a buffer and this is a      
- *          one-way message and the receiver will not reply to the   
- *          message.                                                 
- * Input: pathid - Path identification number.                        
- *        trgcls - Specifies target class.                            
- *        srccls - Specifies the source message class.                
- *        msgtag - Specifies a tag to be associated with the message. 
+/*
+ * Name: iucv_send
+ * Purpose: This function transmits data to another application.
+ *          Data to be transmitted is in a buffer and this is a
+ *          one-way message and the receiver will not reply to the
+ *          message.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag to be associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 Specifies if you want to send priority message.
- *        buffer - Address of send buffer.                            
- *        buflen - Length of send buffer.                             
- * Output: msgid - Specifies the message ID.                         
- * Return: Return code from CP IUCV call.                         
- *         (-EINVAL) - Buffer address is NULL.                             
+ *        buffer - Address of send buffer.
+ *        buflen - Length of send buffer.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_send (u16 pathid,
 	       u32 * msgid,
 	       u32 trgcls,
 	       u32 srccls, u32 msgtag, int flags1, void *buffer, ulong buflen);
 
-/*                                                                   
- * Name: iucv_send_array                                             
- * Purpose: This function transmits data to another application.     
- *          The contents of buffer is the address of the array of    
- *          addresses and lengths of discontiguous buffers that hold 
- *          the message text. This is a one-way message and the      
- *          receiver will not reply to the message.                  
- * Input: pathid - Path identification number.                        
- *        trgcls - Specifies target class.                            
- *        srccls - Specifies the source message class.                
+/*
+ * Name: iucv_send_array
+ * Purpose: This function transmits data to another application.
+ *          The contents of buffer is the address of the array of
+ *          addresses and lengths of discontiguous buffers that hold
+ *          the message text. This is a one-way message and the
+ *          receiver will not reply to the message.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
  *        msgtag - Specifies a tag to be associated witht the message.
  *        flags1 - Option for path.
- *          IPPRTY- specifies if you want to send priority message. 
- *        buffer - Address of array of send buffers.                  
- *        buflen - Total length of send buffers.                      
- * Output: msgid - Specifies the message ID.                         
- * Return: Return code from CP IUCV call.                         
- *         (-EINVAL) - Buffer address is NULL.                             
+ *          IPPRTY- specifies if you want to send priority message.
+ *        buffer - Address of array of send buffers.
+ *        buflen - Total length of send buffers.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_send_array (u16 pathid,
 		     u32 * msgid,
@@ -675,48 +675,48 @@ int iucv_send_array (u16 pathid,
 		     u32 msgtag,
 		     int flags1, iucv_array_t * buffer, ulong buflen);
 
-/*                                                                     
- * Name: iucv_send_prmmsg                                              
- * Purpose: This function transmits data to another application.       
- *          Prmmsg specifies that the 8-bytes of data are to be moved  
- *          into the parameter list. This is a one-way message and the 
- *          receiver will not reply to the message.                    
- * Input: pathid - Path identification number.                          
- *        trgcls - Specifies target class.                              
- *        srccls - Specifies the source message class.                  
- *        msgtag - Specifies a tag to be associated with the message.   
+/*
+ * Name: iucv_send_prmmsg
+ * Purpose: This function transmits data to another application.
+ *          Prmmsg specifies that the 8-bytes of data are to be moved
+ *          into the parameter list. This is a one-way message and the
+ *          receiver will not reply to the message.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag to be associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 specifies if you want to send priority message.
- *        prmmsg - 8-bytes of data to be placed into parameter list.    
- * Output: msgid - Specifies the message ID.                           
- * Return: Return code from CP IUCV call.                           
+ *        prmmsg - 8-bytes of data to be placed into parameter list.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
 */
 int iucv_send_prmmsg (u16 pathid,
 		      u32 * msgid,
 		      u32 trgcls,
 		      u32 srccls, u32 msgtag, int flags1, uchar prmmsg[8]);
 
-/*                                                                
- * Name: iucv_send2way                                            
- * Purpose: This function transmits data to another application.  
- *          Data to be transmitted is in a buffer. The receiver   
- *          of the send is expected to reply to the message and   
- *          a buffer is provided into which IUCV moves the reply  
- *          to this message.                                      
- * Input: pathid - Path identification number.                     
- *        trgcls - Specifies target class.                         
- *        srccls - Specifies the source message class.             
- *        msgtag - Specifies a tag associated with the message.    
+/*
+ * Name: iucv_send2way
+ * Purpose: This function transmits data to another application.
+ *          Data to be transmitted is in a buffer. The receiver
+ *          of the send is expected to reply to the message and
+ *          a buffer is provided into which IUCV moves the reply
+ *          to this message.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 Specifies if you want to send priority message.
- *        buffer - Address of send buffer.                         
- *        buflen - Length of send buffer.                          
- *        ansbuf - Address of buffer into which IUCV moves the reply of 
- *                 this message.        
- *        anslen - Address of length of buffer.          
- * Output: msgid - Specifies the message ID.                      
- * Return: Return code from CP IUCV call.                      
- *         (-EINVAL) - Buffer or ansbuf address is NULL.    
+ *        buffer - Address of send buffer.
+ *        buflen - Length of send buffer.
+ *        ansbuf - Address of buffer into which IUCV moves the reply of
+ *                 this message.
+ *        anslen - Address of length of buffer.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer or ansbuf address is NULL.
 */
 int iucv_send2way (u16 pathid,
 		   u32 * msgid,
@@ -726,28 +726,28 @@ int iucv_send2way (u16 pathid,
 		   int flags1,
 		   void *buffer, ulong buflen, void *ansbuf, ulong anslen);
 
-/*                                                                    
- * Name: iucv_send2way_array                                          
- * Purpose: This function transmits data to another application.      
- *          The contents of buffer is the address of the array of     
- *          addresses and lengths of discontiguous buffers that hold  
- *          the message text. The receiver of the send is expected to 
- *          reply to the message and a buffer is provided into which  
- *          IUCV moves the reply to this message.                     
- * Input: pathid - Path identification number.                         
- *        trgcls - Specifies target class.                             
- *        srccls - Specifies the source message class.                 
- *        msgtag - Specifies a tag to be associated with the message.   
+/*
+ * Name: iucv_send2way_array
+ * Purpose: This function transmits data to another application.
+ *          The contents of buffer is the address of the array of
+ *          addresses and lengths of discontiguous buffers that hold
+ *          the message text. The receiver of the send is expected to
+ *          reply to the message and a buffer is provided into which
+ *          IUCV moves the reply to this message.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag to be associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 Specifies if you want to send priority message.
- *        buffer - Sddress of array of send buffers.                   
- *        buflen - Total length of send buffers.                       
- *        ansbuf - Address of array of buffer into which IUCV moves the reply            
- *                 of this message.                         
- *        anslen - Address of length reply buffers.              
- * Output: msgid - Specifies the message ID.                          
- * Return: Return code from CP IUCV call.                          
- *         (-EINVAL) - Buffer address is NULL.                              
+ *        buffer - Sddress of array of send buffers.
+ *        buflen - Total length of send buffers.
+ *        ansbuf - Address of array of buffer into which IUCV moves the reply
+ *                 of this message.
+ *        anslen - Address of length reply buffers.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_send2way_array (u16 pathid,
 			 u32 * msgid,
@@ -758,27 +758,27 @@ int iucv_send2way_array (u16 pathid,
 			 iucv_array_t * buffer,
 			 ulong buflen, iucv_array_t * ansbuf, ulong anslen);
 
-/*                                                                     
- * Name: iucv_send2way_prmmsg                                          
- * Purpose: This function transmits data to another application.       
- *          Prmmsg specifies that the 8-bytes of data are to be moved  
- *          into the parameter list. This is a two-way message and the 
- *          receiver of the message is expected to reply. A buffer     
- *          is provided into which IUCV moves the reply to this        
- *          message.                                                   
- * Input: pathid - Rath identification number.                          
- *        trgcls - Specifies target class.                              
- *        srccls - Specifies the source message class.                  
- *        msgtag - Specifies a tag to be associated with the message.   
+/*
+ * Name: iucv_send2way_prmmsg
+ * Purpose: This function transmits data to another application.
+ *          Prmmsg specifies that the 8-bytes of data are to be moved
+ *          into the parameter list. This is a two-way message and the
+ *          receiver of the message is expected to reply. A buffer
+ *          is provided into which IUCV moves the reply to this
+ *          message.
+ * Input: pathid - Rath identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag to be associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 Specifies if you want to send priority message.
- *        prmmsg - 8-bytes of data to be placed in parameter list.      
- *        ansbuf - Address of buffer into which IUCV moves the reply of    
+ *        prmmsg - 8-bytes of data to be placed in parameter list.
+ *        ansbuf - Address of buffer into which IUCV moves the reply of
  *                 this message.
- *        anslen - Address of length of buffer.               
- * Output: msgid - Specifies the message ID.                           
- * Return: Return code from CP IUCV call.                           
- *         (-EINVAL) - Buffer address is NULL.         
+ *        anslen - Address of length of buffer.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Buffer address is NULL.
 */
 int iucv_send2way_prmmsg (u16 pathid,
 			  u32 * msgid,
@@ -788,29 +788,29 @@ int iucv_send2way_prmmsg (u16 pathid,
 			  ulong flags1,
 			  uchar prmmsg[8], void *ansbuf, ulong anslen);
 
-/*                                                                      
- * Name: iucv_send2way_prmmsg_array                                     
- * Purpose: This function transmits data to another application.        
- *          Prmmsg specifies that the 8-bytes of data are to be moved   
- *          into the parameter list. This is a two-way message and the  
- *          receiver of the message is expected to reply. A buffer      
- *          is provided into which IUCV moves the reply to this         
- *          message. The contents of ansbuf is the address of the       
- *          array of addresses and lengths of discontiguous buffers     
- *          that contain the reply.                                     
- * Input: pathid - Path identification number.                           
- *        trgcls - Specifies target class.                               
- *        srccls - Specifies the source message class.                   
- *        msgtag - Specifies a tag to be associated with the message.    
+/*
+ * Name: iucv_send2way_prmmsg_array
+ * Purpose: This function transmits data to another application.
+ *          Prmmsg specifies that the 8-bytes of data are to be moved
+ *          into the parameter list. This is a two-way message and the
+ *          receiver of the message is expected to reply. A buffer
+ *          is provided into which IUCV moves the reply to this
+ *          message. The contents of ansbuf is the address of the
+ *          array of addresses and lengths of discontiguous buffers
+ *          that contain the reply.
+ * Input: pathid - Path identification number.
+ *        trgcls - Specifies target class.
+ *        srccls - Specifies the source message class.
+ *        msgtag - Specifies a tag to be associated with the message.
  *        flags1 - Option for path.
  *          IPPRTY- 0x20 specifies if you want to send priority message.
- *        prmmsg - 8-bytes of data to be placed into the parameter list. 
+ *        prmmsg - 8-bytes of data to be placed into the parameter list.
  *        ansbuf - Address of array of buffer into which IUCV moves the reply
- *                 of this message.  
- *        anslen - Address of length of reply buffers.                
- * Output: msgid - Specifies the message ID.      
- * Return: Return code from CP IUCV call.      
- *         (-EINVAL) - Ansbuf address is NULL.          
+ *                 of this message.
+ *        anslen - Address of length of reply buffers.
+ * Output: msgid - Specifies the message ID.
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Ansbuf address is NULL.
 */
 int iucv_send2way_prmmsg_array (u16 pathid,
 				u32 * msgid,
@@ -821,29 +821,29 @@ int iucv_send2way_prmmsg_array (u16 pathid,
 				uchar prmmsg[8],
 				iucv_array_t * ansbuf, ulong anslen);
 
-/*                                                                   
- * Name: iucv_setmask                                                
- * Purpose: This function enables or disables the following IUCV     
- *          external interruptions: Nonpriority and priority message 
- *          interrupts, nonpriority and priority reply interrupts.   
+/*
+ * Name: iucv_setmask
+ * Purpose: This function enables or disables the following IUCV
+ *          external interruptions: Nonpriority and priority message
+ *          interrupts, nonpriority and priority reply interrupts.
  * Input: SetMaskFlag - options for interrupts
- *           0x80 - Nonpriority_MessagePendingInterruptsFlag         
- *           0x40 - Priority_MessagePendingInterruptsFlag            
- *           0x20 - Nonpriority_MessageCompletionInterruptsFlag      
- *           0x10 - Priority_MessageCompletionInterruptsFlag         
+ *           0x80 - Nonpriority_MessagePendingInterruptsFlag
+ *           0x40 - Priority_MessagePendingInterruptsFlag
+ *           0x20 - Nonpriority_MessageCompletionInterruptsFlag
+ *           0x10 - Priority_MessageCompletionInterruptsFlag
  *           0x08 - IUCVControlInterruptsFlag
- * Output: NA                                                        
- * Return: Return code from CP IUCV call.                         
+ * Output: NA
+ * Return: Return code from CP IUCV call.
 */
 int iucv_setmask (int SetMaskFlag);
 
-/*                                                  
- * Name: iucv_sever                                 
- * Purpose: This function terminates an IUCV path.  
- * Input: pathid - Path identification number.       
- *        user_data - 16-bytes of user data.         
- * Output: NA       
- * Return: Return code from CP IUCV call.                                
- *         (-EINVAL) - Interal error, wild pointer.       
+/*
+ * Name: iucv_sever
+ * Purpose: This function terminates an IUCV path.
+ * Input: pathid - Path identification number.
+ *        user_data - 16-bytes of user data.
+ * Output: NA
+ * Return: Return code from CP IUCV call.
+ *         (-EINVAL) - Interal error, wild pointer.
 */
 int iucv_sever (u16 pathid, uchar user_data[16]);
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index 5d6b7a57b02f..f94419b334f7 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -68,6 +68,7 @@ static void lcs_tasklet(unsigned long);
 static void lcs_start_kernel_thread(struct lcs_card *card);
 static void lcs_get_frames_cb(struct lcs_channel *, struct lcs_buffer *);
 static int lcs_send_delipm(struct lcs_card *, struct lcs_ipm_list *);
+static int lcs_recovery(void *ptr);
 
 /**
  * Debug Facility Stuff
@@ -429,12 +430,6 @@ lcs_setup_card(struct lcs_card *card)
 	card->tx_buffer = NULL;
 	card->tx_emitted = 0;
 
-	/* Initialize kernel thread task used for LGW commands. */
-	INIT_WORK(&card->kernel_thread_starter,
-		  (void *)lcs_start_kernel_thread,card);
-	card->thread_start_mask = 0;
-	card->thread_allowed_mask = 0;
-	card->thread_running_mask = 0;
 	init_waitqueue_head(&card->wait_q);
 	spin_lock_init(&card->lock);
 	spin_lock_init(&card->ipm_lock);
@@ -675,8 +670,9 @@ lcs_ready_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer)
 	int index, rc;
 
 	LCS_DBF_TEXT(5, trace, "rdybuff");
-	BUG_ON(buffer->state != BUF_STATE_LOCKED &&
-		buffer->state != BUF_STATE_PROCESSED);
+	if (buffer->state != BUF_STATE_LOCKED &&
+	    buffer->state != BUF_STATE_PROCESSED)
+		BUG();
 	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
 	buffer->state = BUF_STATE_READY;
 	index = buffer - channel->iob;
@@ -700,7 +696,8 @@ __lcs_processed_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer)
 	int index, prev, next;
 
 	LCS_DBF_TEXT(5, trace, "prcsbuff");
-	BUG_ON(buffer->state != BUF_STATE_READY);
+	if (buffer->state != BUF_STATE_READY)
+		BUG();
 	buffer->state = BUF_STATE_PROCESSED;
 	index = buffer - channel->iob;
 	prev = (index - 1) & (LCS_NUM_BUFFS - 1);
@@ -732,8 +729,9 @@ lcs_release_buffer(struct lcs_channel *channel, struct lcs_buffer *buffer)
 	unsigned long flags;
 
 	LCS_DBF_TEXT(5, trace, "relbuff");
-	BUG_ON(buffer->state != BUF_STATE_LOCKED &&
-		buffer->state != BUF_STATE_PROCESSED);
+	if (buffer->state != BUF_STATE_LOCKED &&
+	    buffer->state != BUF_STATE_PROCESSED)
+		BUG();
 	spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags);
 	buffer->state = BUF_STATE_EMPTY;
 	spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags);
@@ -1147,8 +1145,6 @@ list_modified:
 		list_add_tail(&ipm->list, &card->ipm_list);
 	}
 	spin_unlock_irqrestore(&card->ipm_lock, flags);
-	if (card->state == DEV_STATE_UP)
-		netif_wake_queue(card->dev);
 }
 
 /**
@@ -1231,17 +1227,17 @@ lcs_set_mc_addresses(struct lcs_card *card, struct in_device *in4_dev)
 		if (ipm != NULL)
 			continue;	/* Address already in list. */
 		ipm = (struct lcs_ipm_list *)
-			kmalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC);
+			kzalloc(sizeof(struct lcs_ipm_list), GFP_ATOMIC);
 		if (ipm == NULL) {
 			PRINT_INFO("Not enough memory to add "
 				   "new multicast entry!\n");
 			break;
 		}
-		memset(ipm, 0, sizeof(struct lcs_ipm_list));
 		memcpy(&ipm->ipm.mac_addr, buf, LCS_MAC_LENGTH);
 		ipm->ipm.ip_addr = im4->multiaddr;
 		ipm->ipm_state = LCS_IPM_STATE_SET_REQUIRED;
 		spin_lock_irqsave(&card->ipm_lock, flags);
+		LCS_DBF_HEX(2,trace,&ipm->ipm.ip_addr,4);
 		list_add(&ipm->list, &card->ipm_list);
 		spin_unlock_irqrestore(&card->ipm_lock, flags);
 	}
@@ -1269,7 +1265,15 @@ lcs_register_mc_addresses(void *data)
 	read_unlock(&in4_dev->mc_list_lock);
 	in_dev_put(in4_dev);
 
+	netif_carrier_off(card->dev);
+	netif_tx_disable(card->dev);
+	wait_event(card->write.wait_q,
+			(card->write.state != CH_STATE_RUNNING));
 	lcs_fix_multicast_list(card);
+	if (card->state == DEV_STATE_UP) {
+		netif_carrier_on(card->dev);
+		netif_wake_queue(card->dev);
+	}
 out:
 	lcs_clear_thread_running_bit(card, LCS_SET_MC_THREAD);
 	return 0;
@@ -1286,7 +1290,7 @@ lcs_set_multicast_list(struct net_device *dev)
         LCS_DBF_TEXT(4, trace, "setmulti");
         card = (struct lcs_card *) dev->priv;
 
-        if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD)) 
+        if (!lcs_set_thread_start_bit(card, LCS_SET_MC_THREAD))
 		schedule_work(&card->kernel_thread_starter);
 }
 
@@ -1318,6 +1322,53 @@ lcs_check_irb_error(struct ccw_device *cdev, struct irb *irb)
 	return PTR_ERR(irb);
 }
 
+static int
+lcs_get_problem(struct ccw_device *cdev, struct irb *irb)
+{
+	int dstat, cstat;
+	char *sense;
+
+	sense = (char *) irb->ecw;
+	cstat = irb->scsw.cstat;
+	dstat = irb->scsw.dstat;
+
+	if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK |
+		     SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK |
+		     SCHN_STAT_PROT_CHECK   | SCHN_STAT_PROG_CHECK)) {
+		LCS_DBF_TEXT(2, trace, "CGENCHK");
+		return 1;
+	}
+	if (dstat & DEV_STAT_UNIT_CHECK) {
+		if (sense[LCS_SENSE_BYTE_1] &
+		    LCS_SENSE_RESETTING_EVENT) {
+			LCS_DBF_TEXT(2, trace, "REVIND");
+			return 1;
+		}
+		if (sense[LCS_SENSE_BYTE_0] &
+		    LCS_SENSE_CMD_REJECT) {
+			LCS_DBF_TEXT(2, trace, "CMDREJ");
+			return 0;
+		}
+		if ((!sense[LCS_SENSE_BYTE_0]) &&
+		    (!sense[LCS_SENSE_BYTE_1]) &&
+		    (!sense[LCS_SENSE_BYTE_2]) &&
+		    (!sense[LCS_SENSE_BYTE_3])) {
+			LCS_DBF_TEXT(2, trace, "ZEROSEN");
+			return 0;
+		}
+		LCS_DBF_TEXT(2, trace, "DGENCHK");
+		return 1;
+	}
+	return 0;
+}
+
+void
+lcs_schedule_recovery(struct lcs_card *card)
+{
+	LCS_DBF_TEXT(2, trace, "startrec");
+	if (!lcs_set_thread_start_bit(card, LCS_RECOVERY_THREAD))
+		schedule_work(&card->kernel_thread_starter);
+}
 
 /**
  * IRQ Handler for LCS channels
@@ -1327,7 +1378,8 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 {
 	struct lcs_card *card;
 	struct lcs_channel *channel;
-	int index;
+	int rc, index;
+	int cstat, dstat;
 
 	if (lcs_check_irb_error(cdev, irb))
 		return;
@@ -1338,17 +1390,30 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 	else
 		channel = &card->write;
 
+	cstat = irb->scsw.cstat;
+	dstat = irb->scsw.dstat;
 	LCS_DBF_TEXT_(5, trace, "Rint%s",cdev->dev.bus_id);
 	LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.cstat, irb->scsw.dstat);
 	LCS_DBF_TEXT_(5, trace, "%4x%4x",irb->scsw.fctl, irb->scsw.actl);
 
+	/* Check for channel and device errors presented */
+	rc = lcs_get_problem(cdev, irb);
+	if (rc || (dstat & DEV_STAT_UNIT_EXCEP)) {
+		PRINT_WARN("check on device %s, dstat=0x%X, cstat=0x%X \n",
+			    cdev->dev.bus_id, dstat, cstat);
+		if (rc) {
+			lcs_schedule_recovery(card);
+			wake_up(&card->wait_q);
+			return;
+		}
+	}
 	/* How far in the ccw chain have we processed? */
 	if ((channel->state != CH_STATE_INIT) &&
 	    (irb->scsw.fctl & SCSW_FCTL_START_FUNC)) {
-		index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa) 
+		index = (struct ccw1 *) __va((addr_t) irb->scsw.cpa)
 			- channel->ccws;
 		if ((irb->scsw.actl & SCSW_ACTL_SUSPENDED) ||
-		    (irb->scsw.cstat | SCHN_STAT_PCI))
+		    (irb->scsw.cstat & SCHN_STAT_PCI))
 			/* Bloody io subsystem tells us lies about cpa... */
 			index = (index - 1) & (LCS_NUM_BUFFS - 1);
 		while (channel->io_idx != index) {
@@ -1367,7 +1432,6 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 	else if (irb->scsw.actl & SCSW_ACTL_SUSPENDED)
 		/* CCW execution stopped on a suspend bit. */
 		channel->state = CH_STATE_SUSPENDED;
-
 	if (irb->scsw.fctl & SCSW_FCTL_HALT_FUNC) {
 		if (irb->scsw.cc != 0) {
 			ccw_device_halt(channel->ccwdev, (addr_t) channel);
@@ -1376,7 +1440,6 @@ lcs_irq(struct ccw_device *cdev, unsigned long intparm, struct irb *irb)
 		/* The channel has been stopped by halt_IO. */
 		channel->state = CH_STATE_HALTED;
 	}
-
 	if (irb->scsw.fctl & SCSW_FCTL_CLEAR_FUNC) {
 		channel->state = CH_STATE_CLEARED;
 	}
@@ -1452,7 +1515,7 @@ lcs_txbuffer_cb(struct lcs_channel *channel, struct lcs_buffer *buffer)
 	lcs_release_buffer(channel, buffer);
 	card = (struct lcs_card *)
 		((char *) channel - offsetof(struct lcs_card, write));
-	if (netif_queue_stopped(card->dev))
+	if (netif_queue_stopped(card->dev) && netif_carrier_ok(card->dev))
 		netif_wake_queue(card->dev);
 	spin_lock(&card->lock);
 	card->tx_emitted--;
@@ -1488,6 +1551,10 @@ __lcs_start_xmit(struct lcs_card *card, struct sk_buff *skb,
 		card->stats.tx_carrier_errors++;
 		return 0;
 	}
+	if (skb->protocol == htons(ETH_P_IPV6)) {
+		dev_kfree_skb(skb);
+		return 0;
+	}
 	netif_stop_queue(card->dev);
 	spin_lock(&card->lock);
 	if (card->tx_buffer != NULL &&
@@ -1633,30 +1700,6 @@ lcs_detect(struct lcs_card *card)
 }
 
 /**
- * reset card
- */
-static int
-lcs_resetcard(struct lcs_card *card)
-{
-	int retries;
-
-	LCS_DBF_TEXT(2, trace, "rescard");
-	for (retries = 0; retries < 10; retries++) {
-		if (lcs_detect(card) == 0) {
-			netif_wake_queue(card->dev);
-			card->state = DEV_STATE_UP;
-			PRINT_INFO("LCS device %s successfully restarted!\n",
-				   card->dev->name);
-			return 0;
-		}
-		msleep(3000);
-	}
-	PRINT_ERR("Error in Reseting LCS card!\n");
-	return -EIO;
-}
-
-
-/**
  * LCS Stop card
  */
 static int
@@ -1680,126 +1723,18 @@ lcs_stopcard(struct lcs_card *card)
 }
 
 /**
- * LGW initiated commands
- */
-static int
-lcs_lgw_startlan_thread(void *data)
-{
-	struct lcs_card *card;
-
-	card = (struct lcs_card *) data;
-	daemonize("lgwstpln");
-
-	if (!lcs_do_run_thread(card, LCS_STARTLAN_THREAD))
-		return 0;
-	LCS_DBF_TEXT(4, trace, "lgwstpln");
-	if (card->dev)
-		netif_stop_queue(card->dev);
-	if (lcs_startlan(card) == 0) {
-		netif_wake_queue(card->dev);
-		card->state = DEV_STATE_UP;
-		PRINT_INFO("LCS Startlan for device %s succeeded!\n",
-			   card->dev->name);
-
-	} else
-		PRINT_ERR("LCS Startlan for device %s failed!\n",
-			  card->dev->name);
-	lcs_clear_thread_running_bit(card, LCS_STARTLAN_THREAD);
-	return 0;
-}
-
-/**
- * Send startup command initiated by Lan Gateway
- */
-static int
-lcs_lgw_startup_thread(void *data)
-{
-	int rc;
-
-	struct lcs_card *card;
-
-	card = (struct lcs_card *) data;
-	daemonize("lgwstaln");
-
-	if (!lcs_do_run_thread(card, LCS_STARTUP_THREAD))
-		return 0;
-	LCS_DBF_TEXT(4, trace, "lgwstaln");
-	if (card->dev)
-		netif_stop_queue(card->dev);
-	rc = lcs_send_startup(card, LCS_INITIATOR_LGW);
-	if (rc != 0) {
-		PRINT_ERR("Startup for LCS device %s initiated " \
-			  "by LGW failed!\nReseting card ...\n",
-			  card->dev->name);
-		/* do a card reset */
-		rc = lcs_resetcard(card);
-		if (rc == 0)
-			goto Done;
-	}
-	rc = lcs_startlan(card);
-	if (rc == 0) {
-		netif_wake_queue(card->dev);
-		card->state = DEV_STATE_UP;
-	}
-Done:
-	if (rc == 0)
-		PRINT_INFO("LCS Startup for device %s succeeded!\n",
-			   card->dev->name);
-	else
-		PRINT_ERR("LCS Startup for device %s failed!\n",
-			  card->dev->name);
-	lcs_clear_thread_running_bit(card, LCS_STARTUP_THREAD);
-	return 0;
-}
-
-
-/**
- * send stoplan command initiated by Lan Gateway
- */
-static int
-lcs_lgw_stoplan_thread(void *data)
-{
-	struct lcs_card *card;
-	int rc;
-
-	card = (struct lcs_card *) data;
-	daemonize("lgwstop");
-
-	if (!lcs_do_run_thread(card, LCS_STOPLAN_THREAD))
-		return 0;
-	LCS_DBF_TEXT(4, trace, "lgwstop");
-	if (card->dev)
-		netif_stop_queue(card->dev);
-	if (lcs_send_stoplan(card, LCS_INITIATOR_LGW) == 0)
-		PRINT_INFO("Stoplan for %s initiated by LGW succeeded!\n",
-			   card->dev->name);
-	else
-		PRINT_ERR("Stoplan %s initiated by LGW failed!\n",
-			  card->dev->name);
-	/*Try to reset the card, stop it on failure */
-        rc = lcs_resetcard(card);
-        if (rc != 0)
-                rc = lcs_stopcard(card);
-	lcs_clear_thread_running_bit(card, LCS_STOPLAN_THREAD);
-        return rc;
-}
-
-/**
  * Kernel Thread helper functions for LGW initiated commands
  */
 static void
 lcs_start_kernel_thread(struct lcs_card *card)
 {
 	LCS_DBF_TEXT(5, trace, "krnthrd");
-	if (lcs_do_start_thread(card, LCS_STARTUP_THREAD))
-		kernel_thread(lcs_lgw_startup_thread, (void *) card, SIGCHLD);
-	if (lcs_do_start_thread(card, LCS_STARTLAN_THREAD))
-		kernel_thread(lcs_lgw_startlan_thread, (void *) card, SIGCHLD);
-	if (lcs_do_start_thread(card, LCS_STOPLAN_THREAD))
-		kernel_thread(lcs_lgw_stoplan_thread, (void *) card, SIGCHLD);
+	if (lcs_do_start_thread(card, LCS_RECOVERY_THREAD))
+		kernel_thread(lcs_recovery, (void *) card, SIGCHLD);
 #ifdef CONFIG_IP_MULTICAST
 	if (lcs_do_start_thread(card, LCS_SET_MC_THREAD))
-		kernel_thread(lcs_register_mc_addresses, (void *) card, SIGCHLD);
+		kernel_thread(lcs_register_mc_addresses,
+				(void *) card, SIGCHLD);
 #endif
 }
 
@@ -1813,19 +1748,14 @@ lcs_get_control(struct lcs_card *card, struct lcs_cmd *cmd)
 	if (cmd->initiator == LCS_INITIATOR_LGW) {
 		switch(cmd->cmd_code) {
 		case LCS_CMD_STARTUP:
-			if (!lcs_set_thread_start_bit(card,
-						      LCS_STARTUP_THREAD))
-				schedule_work(&card->kernel_thread_starter);
-			break;
 		case LCS_CMD_STARTLAN:
-			if (!lcs_set_thread_start_bit(card,
-						      LCS_STARTLAN_THREAD))
-				schedule_work(&card->kernel_thread_starter);
+			lcs_schedule_recovery(card);
 			break;
 		case LCS_CMD_STOPLAN:
-			if (!lcs_set_thread_start_bit(card,
-						      LCS_STOPLAN_THREAD))
-				schedule_work(&card->kernel_thread_starter);
+			PRINT_WARN("Stoplan for %s initiated by LGW.\n",
+					card->dev->name);
+			if (card->dev)
+				netif_carrier_off(card->dev);
 			break;
 		default:
 			PRINT_INFO("UNRECOGNIZED LGW COMMAND\n");
@@ -1941,8 +1871,11 @@ lcs_stop_device(struct net_device *dev)
 
 	LCS_DBF_TEXT(2, trace, "stopdev");
 	card   = (struct lcs_card *) dev->priv;
-	netif_stop_queue(dev);
+	netif_carrier_off(dev);
+	netif_tx_disable(dev);
 	dev->flags &= ~IFF_UP;
+	wait_event(card->write.wait_q,
+		(card->write.state != CH_STATE_RUNNING));
 	rc = lcs_stopcard(card);
 	if (rc)
 		PRINT_ERR("Try it again!\n ");
@@ -1968,6 +1901,7 @@ lcs_open_device(struct net_device *dev)
 
 	} else {
 		dev->flags |= IFF_UP;
+		netif_carrier_on(dev);
 		netif_wake_queue(dev);
 		card->state = DEV_STATE_UP;
 	}
@@ -2059,10 +1993,31 @@ lcs_timeout_store (struct device *dev, struct device_attribute *attr, const char
 
 DEVICE_ATTR(lancmd_timeout, 0644, lcs_timeout_show, lcs_timeout_store);
 
+static ssize_t
+lcs_dev_recover_store(struct device *dev, struct device_attribute *attr,
+		      const char *buf, size_t count)
+{
+	struct lcs_card *card = dev->driver_data;
+	char *tmp;
+	int i;
+
+	if (!card)
+		return -EINVAL;
+	if (card->state != DEV_STATE_UP)
+		return -EPERM;
+	i = simple_strtoul(buf, &tmp, 16);
+	if (i == 1)
+		lcs_schedule_recovery(card);
+	return count;
+}
+
+static DEVICE_ATTR(recover, 0200, NULL, lcs_dev_recover_store);
+
 static struct attribute * lcs_attrs[] = {
 	&dev_attr_portno.attr,
 	&dev_attr_type.attr,
 	&dev_attr_lancmd_timeout.attr,
+	&dev_attr_recover.attr,
 	NULL,
 };
 
@@ -2099,6 +2054,12 @@ lcs_probe_device(struct ccwgroup_device *ccwgdev)
 	ccwgdev->dev.driver_data = card;
 	ccwgdev->cdev[0]->handler = lcs_irq;
 	ccwgdev->cdev[1]->handler = lcs_irq;
+	card->gdev = ccwgdev;
+	INIT_WORK(&card->kernel_thread_starter,
+		  (void *) lcs_start_kernel_thread, card);
+	card->thread_start_mask = 0;
+	card->thread_allowed_mask = 0;
+	card->thread_running_mask = 0;
         return 0;
 }
 
@@ -2200,6 +2161,7 @@ netdev_out:
 	if (recover_state == DEV_STATE_RECOVER) {
 		lcs_set_multicast_list(card->dev);
 		card->dev->flags |= IFF_UP;
+		netif_carrier_on(card->dev);
 		netif_wake_queue(card->dev);
 		card->state = DEV_STATE_UP;
 	} else {
@@ -2229,7 +2191,7 @@ out:
  * lcs_shutdown_device, called when setting the group device offline.
  */
 static int
-lcs_shutdown_device(struct ccwgroup_device *ccwgdev)
+__lcs_shutdown_device(struct ccwgroup_device *ccwgdev, int recovery_mode)
 {
 	struct lcs_card *card;
 	enum lcs_dev_states recover_state;
@@ -2239,9 +2201,11 @@ lcs_shutdown_device(struct ccwgroup_device *ccwgdev)
 	card = (struct lcs_card *)ccwgdev->dev.driver_data;
 	if (!card)
 		return -ENODEV;
-	lcs_set_allowed_threads(card, 0);
-	if (lcs_wait_for_threads(card, LCS_SET_MC_THREAD))
-		return -ERESTARTSYS;
+	if (recovery_mode == 0) {
+		lcs_set_allowed_threads(card, 0);
+		if (lcs_wait_for_threads(card, LCS_SET_MC_THREAD))
+			return -ERESTARTSYS;
+	}
 	LCS_DBF_HEX(3, setup, &card, sizeof(void*));
 	recover_state = card->state;
 
@@ -2256,6 +2220,43 @@ lcs_shutdown_device(struct ccwgroup_device *ccwgdev)
 	return 0;
 }
 
+static int
+lcs_shutdown_device(struct ccwgroup_device *ccwgdev)
+{
+	return __lcs_shutdown_device(ccwgdev, 0);
+}
+
+/**
+ * drive lcs recovery after startup and startlan initiated by Lan Gateway
+ */
+static int
+lcs_recovery(void *ptr)
+{
+	struct lcs_card *card;
+	struct ccwgroup_device *gdev;
+        int rc;
+
+	card = (struct lcs_card *) ptr;
+	daemonize("lcs_recover");
+
+	LCS_DBF_TEXT(4, trace, "recover1");
+	if (!lcs_do_run_thread(card, LCS_RECOVERY_THREAD))
+		return 0;
+	LCS_DBF_TEXT(4, trace, "recover2");
+	gdev = card->gdev;
+	PRINT_WARN("Recovery of device %s started...\n", gdev->dev.bus_id);
+	rc = __lcs_shutdown_device(gdev, 1);
+	rc = lcs_new_device(gdev);
+	if (!rc)
+		PRINT_INFO("Device %s successfully recovered!\n",
+				card->dev->name);
+	else
+		PRINT_INFO("Device %s could not be recovered!\n",
+				card->dev->name);
+	lcs_clear_thread_running_bit(card, LCS_RECOVERY_THREAD);
+	return 0;
+}
+
 /**
  * lcs_remove_device, free buffers and card
  */
diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h
index 2fad5e40c2e4..93143932983b 100644
--- a/drivers/s390/net/lcs.h
+++ b/drivers/s390/net/lcs.h
@@ -73,13 +73,17 @@ do {                                       \
 /**
  * LCS sense byte definitions
  */
+#define LCS_SENSE_BYTE_0 		0
+#define LCS_SENSE_BYTE_1 		1
+#define LCS_SENSE_BYTE_2 		2
+#define LCS_SENSE_BYTE_3 		3
 #define LCS_SENSE_INTERFACE_DISCONNECT	0x01
 #define LCS_SENSE_EQUIPMENT_CHECK	0x10
 #define LCS_SENSE_BUS_OUT_CHECK		0x20
 #define LCS_SENSE_INTERVENTION_REQUIRED 0x40
 #define LCS_SENSE_CMD_REJECT		0x80
-#define LCS_SENSE_RESETTING_EVENT	0x0080
-#define LCS_SENSE_DEVICE_ONLINE		0x0020
+#define LCS_SENSE_RESETTING_EVENT	0x80
+#define LCS_SENSE_DEVICE_ONLINE		0x20
 
 /**
  * LCS packet type definitions
@@ -152,10 +156,9 @@ enum lcs_dev_states {
 
 enum lcs_threads {
 	LCS_SET_MC_THREAD 	= 1,
-	LCS_STARTLAN_THREAD	= 2,
-	LCS_STOPLAN_THREAD	= 4,
-	LCS_STARTUP_THREAD	= 8,
+	LCS_RECOVERY_THREAD 	= 2,
 };
+
 /**
  * LCS struct declarations
  */
@@ -286,6 +289,7 @@ struct lcs_card {
 	struct net_device_stats stats;
 	unsigned short (*lan_type_trans)(struct sk_buff *skb,
 					 struct net_device *dev);
+	struct ccwgroup_device *gdev;
 	struct lcs_channel read;
 	struct lcs_channel write;
 	struct lcs_buffer *tx_buffer;
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 260a93c8c442..b452cc1afd55 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -30,7 +30,7 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  */
-
+
 #undef DEBUG
 
 #include <linux/module.h>
@@ -65,7 +65,7 @@ MODULE_AUTHOR
     ("(C) 2001 IBM Corporation by Fritz Elfert (felfert@millenux.com)");
 MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver");
 
-
+
 #define PRINTK_HEADER " iucv: "       /* for debugging */
 
 static struct device_driver netiucv_driver = {
@@ -202,7 +202,7 @@ netiucv_printname(char *name)
 	*p = '\0';
 	return tmp;
 }
-
+
 /**
  * States of the interface statemachine.
  */
@@ -244,7 +244,7 @@ static const char *dev_event_names[] = {
 	"Connection up",
 	"Connection down",
 };
-
+
 /**
  * Events of the connection statemachine
  */
@@ -364,7 +364,7 @@ static const char *conn_state_names[] = {
 	"Connect error",
 };
 
-
+
 /**
  * Debug Facility Stuff
  */
@@ -516,7 +516,7 @@ static void
 fsm_action_nop(fsm_instance *fi, int event, void *arg)
 {
 }
-
+
 /**
  * Actions of the connection statemachine
  *****************************************************************************/
@@ -993,7 +993,7 @@ static const fsm_node conn_fsm[] = {
 
 static const int CONN_FSM_LEN = sizeof(conn_fsm) / sizeof(fsm_node);
 
-
+
 /**
  * Actions for interface - statemachine.
  *****************************************************************************/
@@ -1182,7 +1182,7 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) {
 
 		fsm_newstate(conn->fsm, CONN_STATE_TX);
 		conn->prof.send_stamp = xtime;
-		
+
 		rc = iucv_send(conn->pathid, NULL, 0, 0, 1 /* single_flag */,
 			0, nskb->data, nskb->len);
 			       /* Shut up, gcc! nskb is always below 2G. */
@@ -1220,7 +1220,7 @@ netiucv_transmit_skb(struct iucv_connection *conn, struct sk_buff *skb) {
 
 	return rc;
 }
-
+
 /**
  * Interface API for upper network layers
  *****************************************************************************/
@@ -1291,7 +1291,7 @@ static int netiucv_tx(struct sk_buff *skb, struct net_device *dev)
 
 	/**
 	 * If connection is not running, try to restart it
-	 * and throw away packet. 
+	 * and throw away packet.
 	 */
 	if (fsm_getstate(privptr->fsm) != DEV_STATE_RUNNING) {
 		fsm_event(privptr->fsm, DEV_EVENT_START, dev);
@@ -1538,7 +1538,7 @@ static ssize_t
 maxcq_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct netiucv_priv *priv = dev->driver_data;
-	
+
 	IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
 	priv->conn->prof.maxcqueue = 0;
 	return count;
@@ -1559,7 +1559,7 @@ static ssize_t
 sdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct netiucv_priv *priv = dev->driver_data;
-	
+
 	IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
 	priv->conn->prof.doios_single = 0;
 	return count;
@@ -1580,7 +1580,7 @@ static ssize_t
 mdoio_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct netiucv_priv *priv = dev->driver_data;
-	
+
 	IUCV_DBF_TEXT(trace, 5, __FUNCTION__);
 	priv->conn->prof.doios_multi = 0;
 	return count;
@@ -1601,7 +1601,7 @@ static ssize_t
 txlen_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct netiucv_priv *priv = dev->driver_data;
-	
+
 	IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
 	priv->conn->prof.txlen = 0;
 	return count;
@@ -1622,7 +1622,7 @@ static ssize_t
 txtime_write (struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct netiucv_priv *priv = dev->driver_data;
-	
+
 	IUCV_DBF_TEXT(trace, 4, __FUNCTION__);
 	priv->conn->prof.tx_time = 0;
 	return count;
@@ -2000,7 +2000,7 @@ conn_write(struct device_driver *drv, const char *buf, size_t count)
 	}
 
 	PRINT_INFO("%s: '%s'\n", dev->name, netiucv_printname(username));
-	
+
 	return count;
 
 out_free_ndev:
@@ -2099,7 +2099,7 @@ static int __init
 netiucv_init(void)
 {
 	int ret;
-	
+
 	ret = iucv_register_dbf_views();
 	if (ret) {
 		PRINT_WARN("netiucv_init failed, "
@@ -2128,7 +2128,7 @@ netiucv_init(void)
 	}
 	return ret;
 }
-	
+
 module_init(netiucv_init);
 module_exit(netiucv_exit);
 MODULE_LICENSE("GPL");
diff --git a/drivers/s390/net/qeth.h b/drivers/s390/net/qeth.h
index 4df0fcd7b10b..619f4a0c7160 100644
--- a/drivers/s390/net/qeth.h
+++ b/drivers/s390/net/qeth.h
@@ -376,7 +376,7 @@ struct qeth_hdr_osn {
 	__u8 reserved3[18];
 	__u32 ccid;
 } __attribute__ ((packed));
-					    
+
 struct qeth_hdr {
 	union {
 		struct qeth_hdr_layer2 l2;
@@ -825,7 +825,7 @@ struct qeth_card {
 	int use_hard_stop;
 	int (*orig_hard_header)(struct sk_buff *,struct net_device *,
 				unsigned short,void *,void *,unsigned);
-	struct qeth_osn_info osn_info; 
+	struct qeth_osn_info osn_info;
 };
 
 struct qeth_card_list_struct {
@@ -944,7 +944,7 @@ qeth_get_netdev_flags(struct qeth_card *card)
 		return 0;
 	switch (card->info.type) {
 	case QETH_CARD_TYPE_IQD:
-	case QETH_CARD_TYPE_OSN:	
+	case QETH_CARD_TYPE_OSN:
 		return IFF_NOARP;
 #ifdef CONFIG_QETH_IPV6
 	default:
@@ -981,7 +981,7 @@ static inline int
 qeth_get_max_mtu_for_card(int cardtype)
 {
 	switch (cardtype) {
-		
+
 	case QETH_CARD_TYPE_UNKNOWN:
 	case QETH_CARD_TYPE_OSAE:
 	case QETH_CARD_TYPE_OSN:
@@ -1097,9 +1097,9 @@ qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
 	int count = 0, rc = 0;
 	int in[4];
 
-	rc = sscanf(buf, "%d.%d.%d.%d%n", 
+	rc = sscanf(buf, "%d.%d.%d.%d%n",
 		    &in[0], &in[1], &in[2], &in[3], &count);
-	if (rc != 4  || count) 
+	if (rc != 4  || count<=0)
 		return -EINVAL;
 	for (count = 0; count < 4; count++) {
 		if (in[count] > 255)
@@ -1131,7 +1131,7 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
 
 	cnt = out = found = save_cnt = num2 = 0;
         end = start = (char *) buf;
-	in = (__u16 *) addr;	
+	in = (__u16 *) addr;
 	memset(in, 0, 16);
         while (end) {
                 end = strchr(end,':');
@@ -1139,7 +1139,7 @@ qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
                         end = (char *)buf + (strlen(buf));
                         out = 1;
                 }
-                if ((end - start)) { 
+                if ((end - start)) {
                         memset(num, 0, 5);
                         memcpy(num, start, end - start);
 			if (!qeth_isxdigit(num))
@@ -1241,5 +1241,5 @@ qeth_osn_register(unsigned char *read_dev_no,
 
 extern void
 qeth_osn_deregister(struct net_device *);
-		
+
 #endif /* __QETH_H__ */
diff --git a/drivers/s390/net/qeth_eddp.c b/drivers/s390/net/qeth_eddp.c
index 44e226f211e7..0bab60a20309 100644
--- a/drivers/s390/net/qeth_eddp.c
+++ b/drivers/s390/net/qeth_eddp.c
@@ -81,7 +81,7 @@ void
 qeth_eddp_buf_release_contexts(struct qeth_qdio_out_buffer *buf)
 {
 	struct qeth_eddp_context_reference *ref;
-	
+
 	QETH_DBF_TEXT(trace, 6, "eddprctx");
 	while (!list_empty(&buf->ctx_list)){
 		ref = list_entry(buf->ctx_list.next,
@@ -135,7 +135,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
 					   "buffer!\n");
 				goto out;
 			}
-		}		
+		}
 		/* check if the whole next skb fits into current buffer */
 		if ((QETH_MAX_BUFFER_ELEMENTS(queue->card) -
 					buf->next_element_to_fill)
@@ -148,7 +148,7 @@ qeth_eddp_fill_buffer(struct qeth_qdio_out_q *queue,
 			 * and increment ctx's refcnt */
 			must_refcnt = 1;
 			continue;
-		}	
+		}
 		if (must_refcnt){
 			must_refcnt = 0;
 			if (qeth_eddp_buf_ref_context(buf, ctx)){
@@ -266,7 +266,7 @@ qeth_eddp_copy_data_tcp(char *dst, struct qeth_eddp_data *eddp, int len,
 	int left_in_frag;
 	int copy_len;
 	u8 *src;
-	
+
 	QETH_DBF_TEXT(trace, 5, "eddpcdtc");
 	if (skb_shinfo(eddp->skb)->nr_frags == 0) {
 		memcpy(dst, eddp->skb->data + eddp->skb_offset, len);
@@ -408,7 +408,7 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
 	struct tcphdr *tcph;
 	int data_len;
 	u32 hcsum;
-	
+
 	QETH_DBF_TEXT(trace, 5, "eddpftcp");
 	eddp->skb_offset = sizeof(struct qeth_hdr) + eddp->nhl + eddp->thl;
        if (eddp->qh.hdr.l2.id == QETH_HEADER_TYPE_LAYER2) {
@@ -465,13 +465,13 @@ __qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
 		eddp->th.tcp.h.seq += data_len;
 	}
 }
-			   
+
 static inline int
 qeth_eddp_fill_context_tcp(struct qeth_eddp_context *ctx,
 			   struct sk_buff *skb, struct qeth_hdr *qhdr)
 {
 	struct qeth_eddp_data *eddp = NULL;
-	
+
 	QETH_DBF_TEXT(trace, 5, "eddpficx");
 	/* create our segmentation headers and copy original headers */
 	if (skb->protocol == ETH_P_IP)
@@ -512,7 +512,7 @@ qeth_eddp_calc_num_pages(struct qeth_eddp_context *ctx, struct sk_buff *skb,
 			 int hdr_len)
 {
 	int skbs_per_page;
-	
+
 	QETH_DBF_TEXT(trace, 5, "eddpcanp");
 	/* can we put multiple skbs in one page? */
 	skbs_per_page = PAGE_SIZE / (skb_shinfo(skb)->tso_size + hdr_len);
@@ -588,7 +588,7 @@ qeth_eddp_create_context_tcp(struct qeth_card *card, struct sk_buff *skb,
 			     struct qeth_hdr *qhdr)
 {
 	struct qeth_eddp_context *ctx = NULL;
-	
+
 	QETH_DBF_TEXT(trace, 5, "creddpct");
 	if (skb->protocol == ETH_P_IP)
 		ctx = qeth_eddp_create_context_generic(card, skb,
diff --git a/drivers/s390/net/qeth_fs.h b/drivers/s390/net/qeth_fs.h
index e422b41c656e..61faf05517d6 100644
--- a/drivers/s390/net/qeth_fs.h
+++ b/drivers/s390/net/qeth_fs.h
@@ -42,7 +42,7 @@ qeth_create_device_attributes_osn(struct device *dev);
 
 extern void
 qeth_remove_device_attributes_osn(struct device *dev);
-		    
+
 extern int
 qeth_create_driver_attributes(void);
 
diff --git a/drivers/s390/net/qeth_main.c b/drivers/s390/net/qeth_main.c
index b3c6e7907790..9e671a48cd2f 100644
--- a/drivers/s390/net/qeth_main.c
+++ b/drivers/s390/net/qeth_main.c
@@ -513,7 +513,7 @@ __qeth_set_offline(struct ccwgroup_device *cgdev, int recovery_mode)
 
 	QETH_DBF_TEXT(setup, 3, "setoffl");
 	QETH_DBF_HEX(setup, 3, &card, sizeof(void *));
-	
+
 	if (card->dev && netif_carrier_ok(card->dev))
 		netif_carrier_off(card->dev);
 	recover_flag = card->state;
@@ -604,13 +604,13 @@ __qeth_ref_ip_on_card(struct qeth_card *card, struct qeth_ipaddr *todo,
 	list_for_each_entry(addr, &card->ip_list, entry) {
 		if (card->options.layer2) {
 			if ((addr->type == todo->type) &&
-			    (memcmp(&addr->mac, &todo->mac, 
+			    (memcmp(&addr->mac, &todo->mac,
 				    OSA_ADDR_LEN) == 0)) {
 				found = 1;
 				break;
 			}
 			continue;
-		} 
+		}
 		if ((addr->proto     == QETH_PROT_IPV4)  &&
 		    (todo->proto     == QETH_PROT_IPV4)  &&
 		    (addr->type      == todo->type)      &&
@@ -694,13 +694,13 @@ __qeth_insert_ip_todo(struct qeth_card *card, struct qeth_ipaddr *addr, int add)
 		if (card->options.layer2) {
 			if ((tmp->type	== addr->type)	&&
 			    (tmp->is_multicast == addr->is_multicast) &&
-			    (memcmp(&tmp->mac, &addr->mac, 
+			    (memcmp(&tmp->mac, &addr->mac,
 				    OSA_ADDR_LEN) == 0)) {
 				found = 1;
 				break;
 			}
 			continue;
-		} 	 
+		}
 		if ((tmp->proto        == QETH_PROT_IPV4)     &&
 		    (addr->proto       == QETH_PROT_IPV4)     &&
 		    (tmp->type         == addr->type)         &&
@@ -1173,7 +1173,7 @@ qeth_determine_card_type(struct qeth_card *card)
 					   "due to hardware limitations!\n");
 				card->qdio.no_out_queues = 1;
 				card->qdio.default_out_queue = 0;
-			} 
+			}
 			return 0;
 		}
 		i++;
@@ -1198,7 +1198,7 @@ qeth_probe_device(struct ccwgroup_device *gdev)
 		return -ENODEV;
 
 	QETH_DBF_TEXT_(setup, 2, "%s", gdev->dev.bus_id);
-	
+
 	card = qeth_alloc_card();
 	if (!card) {
 		put_device(dev);
@@ -1220,7 +1220,7 @@ qeth_probe_device(struct ccwgroup_device *gdev)
 		put_device(dev);
 		qeth_free_card(card);
 		return rc;
-	}			    
+	}
 	if ((rc = qeth_setup_card(card))){
 		QETH_DBF_TEXT_(setup, 2, "2err%d", rc);
 		put_device(dev);
@@ -1843,7 +1843,7 @@ struct qeth_cmd_buffer *iob)
 	       &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH);
 	QETH_DBF_HEX(control, 2, iob->data, QETH_DBF_CONTROL_LEN);
 }
-						    
+
 static int
 qeth_send_control_data(struct qeth_card *card, int len,
 		       struct qeth_cmd_buffer *iob,
@@ -1937,7 +1937,7 @@ qeth_osn_send_control_data(struct qeth_card *card, int len,
 		wake_up(&card->wait_q);
 	}
 	return rc;
-}					
+}
 
 static inline void
 qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
@@ -1966,7 +1966,7 @@ qeth_osn_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 	memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2);
 	return qeth_osn_send_control_data(card, s1, iob);
 }
-							    
+
 static int
 qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob,
 		  int (*reply_cb)
@@ -2579,7 +2579,7 @@ qeth_process_inbound_buffer(struct qeth_card *card,
 		skb->dev = card->dev;
 		if (hdr->hdr.l2.id == QETH_HEADER_TYPE_LAYER2)
 			vlan_tag = qeth_layer2_rebuild_skb(card, skb, hdr);
-		else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)     
+		else if (hdr->hdr.l3.id == QETH_HEADER_TYPE_LAYER3)
 			qeth_rebuild_skb(card, skb, hdr);
 		else { /*in case of OSN*/
 			skb_push(skb, sizeof(struct qeth_hdr));
@@ -2763,7 +2763,7 @@ qeth_qdio_input_handler(struct ccw_device * ccwdev, unsigned int status,
 		index = i % QDIO_MAX_BUFFERS_PER_Q;
 		buffer = &card->qdio.in_q->bufs[index];
 		if (!((status & QDIO_STATUS_LOOK_FOR_ERROR) &&
-		      qeth_check_qdio_errors(buffer->buffer, 
+		      qeth_check_qdio_errors(buffer->buffer,
 					     qdio_err, siga_err,"qinerr")))
 			qeth_process_inbound_buffer(card, buffer, index);
 		/* clear buffer and give back to hardware */
@@ -3187,7 +3187,7 @@ qeth_alloc_qdio_buffers(struct qeth_card *card)
 	if (card->qdio.state == QETH_QDIO_ALLOCATED)
 		return 0;
 
-	card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), 
+	card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q),
 				  GFP_KERNEL|GFP_DMA);
 	if (!card->qdio.in_q)
 		return - ENOMEM;
@@ -3476,7 +3476,7 @@ qeth_halt_channels(struct qeth_card *card)
 	rc3 = qeth_halt_channel(&card->data);
 	if (rc1)
 		return rc1;
-	if (rc2) 
+	if (rc2)
 		return rc2;
 	return rc3;
 }
@@ -3491,7 +3491,7 @@ qeth_clear_channels(struct qeth_card *card)
 	rc3 = qeth_clear_channel(&card->data);
 	if (rc1)
 		return rc1;
-	if (rc2) 
+	if (rc2)
 		return rc2;
 	return rc3;
 }
@@ -3798,10 +3798,10 @@ qeth_open(struct net_device *dev)
 		QETH_DBF_TEXT(trace,4,"nomacadr");
 		return -EPERM;
 	}
-	card->dev->flags |= IFF_UP;
-	netif_start_queue(dev);
 	card->data.state = CH_STATE_UP;
 	card->state = CARD_STATE_UP;
+	card->dev->flags |= IFF_UP;
+	netif_start_queue(dev);
 
 	if (!card->lan_online && netif_carrier_ok(dev))
 		netif_carrier_off(dev);
@@ -3817,7 +3817,7 @@ qeth_stop(struct net_device *dev)
 
 	card = (struct qeth_card *) dev->priv;
 
-	netif_stop_queue(dev);
+	netif_tx_disable(dev);
 	card->dev->flags &= ~IFF_UP;
 	if (card->state == CARD_STATE_UP)
 		card->state = CARD_STATE_SOFTSETUP;
@@ -3958,7 +3958,7 @@ qeth_prepare_skb(struct qeth_card *card, struct sk_buff **skb,
 #endif
 	*hdr = (struct qeth_hdr *)
 		qeth_push_skb(card, skb, sizeof(struct qeth_hdr));
-	if (hdr == NULL)
+	if (*hdr == NULL)
 		return -EINVAL;
 	return 0;
 }
@@ -4098,7 +4098,7 @@ qeth_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
 		}
 	} else { /* passthrough */
                 if((skb->dev->type == ARPHRD_IEEE802_TR) &&
-		    !memcmp(skb->data + sizeof(struct qeth_hdr) + 
+		    !memcmp(skb->data + sizeof(struct qeth_hdr) +
 		    sizeof(__u16), skb->dev->broadcast, 6)) {
 			hdr->hdr.l3.flags = QETH_CAST_BROADCAST |
 						QETH_HDR_PASSTHRU;
@@ -4385,7 +4385,7 @@ out:
 }
 
 static inline int
-qeth_get_elements_no(struct qeth_card *card, void *hdr, 
+qeth_get_elements_no(struct qeth_card *card, void *hdr,
 		     struct sk_buff *skb, int elems)
 {
 	int elements_needed = 0;
@@ -4416,6 +4416,8 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
 	enum qeth_large_send_types large_send = QETH_LARGE_SEND_NO;
 	struct qeth_eddp_context *ctx = NULL;
 	int tx_bytes = skb->len;
+	unsigned short nr_frags = skb_shinfo(skb)->nr_frags;
+	unsigned short tso_size = skb_shinfo(skb)->tso_size;
 	int rc;
 
 	QETH_DBF_TEXT(trace, 6, "sendpkt");
@@ -4441,7 +4443,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
 		return 0;
 	}
 	cast_type = qeth_get_cast_type(card, skb);
-	if ((cast_type == RTN_BROADCAST) && 
+	if ((cast_type == RTN_BROADCAST) &&
 	    (card->info.broadcast_capable == 0)){
 		card->stats.tx_dropped++;
 		card->stats.tx_errors++;
@@ -4463,7 +4465,7 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
 			card->stats.tx_errors++;
 			dev_kfree_skb_any(skb);
 			return NETDEV_TX_OK;
-		} 
+		}
 		elements_needed++;
 	} else {
 		if ((rc = qeth_prepare_skb(card, &skb, &hdr, ipv))) {
@@ -4498,16 +4500,16 @@ qeth_send_packet(struct qeth_card *card, struct sk_buff *skb)
 		card->stats.tx_packets++;
 		card->stats.tx_bytes += tx_bytes;
 #ifdef CONFIG_QETH_PERF_STATS
-		if (skb_shinfo(skb)->tso_size &&
+		if (tso_size &&
 		   !(large_send == QETH_LARGE_SEND_NO)) {
-			card->perf_stats.large_send_bytes += skb->len;
+			card->perf_stats.large_send_bytes += tx_bytes;
 			card->perf_stats.large_send_cnt++;
 		}
- 		if (skb_shinfo(skb)->nr_frags > 0){
+ 		if (nr_frags > 0){
 			card->perf_stats.sg_skbs_sent++;
 			/* nr_frags + skb->data */
 			card->perf_stats.sg_frags_sent +=
-				skb_shinfo(skb)->nr_frags + 1;
+				nr_frags + 1;
 		}
 #endif /* CONFIG_QETH_PERF_STATS */
 	}
@@ -5373,7 +5375,7 @@ qeth_layer2_send_setdelvlan_cb(struct qeth_card *card,
         cmd = (struct qeth_ipa_cmd *) data;
         if (cmd->hdr.return_code) {
 		PRINT_ERR("Error in processing VLAN %i on %s: 0x%x. "
-			  "Continuing\n",cmd->data.setdelvlan.vlan_id, 
+			  "Continuing\n",cmd->data.setdelvlan.vlan_id,
 			  QETH_CARD_IFNAME(card), cmd->hdr.return_code);
 		QETH_DBF_TEXT_(trace, 2, "L2VL%4x", cmd->hdr.command);
 		QETH_DBF_TEXT_(trace, 2, "L2%s", CARD_BUS_ID(card));
@@ -5393,7 +5395,7 @@ qeth_layer2_send_setdelvlan(struct qeth_card *card, __u16 i,
 	iob = qeth_get_ipacmd_buffer(card, ipacmd, QETH_PROT_IPV4);
 	cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE);
         cmd->data.setdelvlan.vlan_id = i;
-	return qeth_send_ipa_cmd(card, iob, 
+	return qeth_send_ipa_cmd(card, iob,
 				 qeth_layer2_send_setdelvlan_cb, NULL);
 }
 
@@ -5457,7 +5459,7 @@ qeth_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid)
  * Examine hardware response to SET_PROMISC_MODE
  */
 static int
-qeth_setadp_promisc_mode_cb(struct qeth_card *card, 
+qeth_setadp_promisc_mode_cb(struct qeth_card *card,
 			    struct qeth_reply *reply,
 			    unsigned long data)
 {
@@ -5468,10 +5470,10 @@ qeth_setadp_promisc_mode_cb(struct qeth_card *card,
 
 	cmd = (struct qeth_ipa_cmd *) data;
 	setparms = &(cmd->data.setadapterparms);
-	
+
         qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd);
-	if (cmd->hdr.return_code) { 
-		QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);	
+	if (cmd->hdr.return_code) {
+		QETH_DBF_TEXT_(trace,4,"prmrc%2.2x",cmd->hdr.return_code);
 		setparms->data.mode = SET_PROMISC_MODE_OFF;
 	}
 	card->info.promisc_mode = setparms->data.mode;
@@ -5517,7 +5519,7 @@ qeth_set_multicast_list(struct net_device *dev)
 
 	if (card->info.type == QETH_CARD_TYPE_OSN)
 		return ;
-	 
+
 	QETH_DBF_TEXT(trace, 3, "setmulti");
 	qeth_delete_mc_addresses(card);
 	if (card->options.layer2) {
@@ -5575,7 +5577,7 @@ qeth_osn_assist(struct net_device *dev,
 	struct qeth_cmd_buffer *iob;
 	struct qeth_card *card;
 	int rc;
-	
+
 	QETH_DBF_TEXT(trace, 2, "osnsdmc");
 	if (!dev)
 		return -ENODEV;
@@ -5654,7 +5656,7 @@ qeth_osn_deregister(struct net_device * dev)
 	card->osn_info.data_cb = NULL;
 	return;
 }
-					   
+
 static void
 qeth_delete_mc_addresses(struct qeth_card *card)
 {
@@ -5818,7 +5820,7 @@ qeth_add_multicast_ipv6(struct qeth_card *card)
 	struct inet6_dev *in6_dev;
 
 	QETH_DBF_TEXT(trace,4,"chkmcv6");
-	if (!qeth_is_supported(card, IPA_IPV6)) 
+	if (!qeth_is_supported(card, IPA_IPV6))
 		return ;
 	in6_dev = in6_dev_get(card->dev);
 	if (in6_dev == NULL)
@@ -6359,12 +6361,9 @@ qeth_netdev_init(struct net_device *dev)
 	dev->vlan_rx_kill_vid = qeth_vlan_rx_kill_vid;
 	dev->vlan_rx_add_vid = qeth_vlan_rx_add_vid;
 #endif
-	dev->hard_header = card->orig_hard_header;
 	if (qeth_get_netdev_flags(card) & IFF_NOARP) {
 		dev->rebuild_header = NULL;
 		dev->hard_header = NULL;
-		if (card->options.fake_ll)
-			dev->hard_header = qeth_fake_header;
 		dev->header_cache_update = NULL;
 		dev->hard_header_cache = NULL;
 	}
@@ -6373,6 +6372,9 @@ qeth_netdev_init(struct net_device *dev)
 	if (!(card->info.unique_id & UNIQUE_ID_NOT_BY_CARD))
 		card->dev->dev_id = card->info.unique_id & 0xffff;
 #endif
+	if (card->options.fake_ll &&
+		(qeth_get_netdev_flags(card) & IFF_NOARP))
+			dev->hard_header = qeth_fake_header;
 	dev->hard_header_parse = NULL;
 	dev->set_mac_address = qeth_layer2_set_mac_address;
 	dev->flags |= qeth_get_netdev_flags(card);
@@ -6477,6 +6479,9 @@ retry:
 	/*network device will be recovered*/
 	if (card->dev) {
 		card->dev->hard_header = card->orig_hard_header;
+		if (card->options.fake_ll &&
+		    (qeth_get_netdev_flags(card) & IFF_NOARP))
+			card->dev->hard_header = qeth_fake_header;
 		return 0;
 	}
 	/* at first set_online allocate netdev */
@@ -6584,7 +6589,7 @@ qeth_setadpparms_change_macaddr_cb(struct qeth_card *card,
 
 	cmd = (struct qeth_ipa_cmd *) data;
 	if (!card->options.layer2 || card->info.guestlan ||
-	    !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {	
+	    !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) {
 		memcpy(card->dev->dev_addr,
 		       &cmd->data.setadapterparms.data.change_addr.addr,
 		       OSA_ADDR_LEN);
@@ -7031,14 +7036,12 @@ qeth_softsetup_ipv6(struct qeth_card *card)
 
 	QETH_DBF_TEXT(trace,3,"softipv6");
 
-	netif_stop_queue(card->dev);
 	rc = qeth_send_startlan(card, QETH_PROT_IPV6);
 	if (rc) {
 		PRINT_ERR("IPv6 startlan failed on %s\n",
 			  QETH_CARD_IFNAME(card));
 		return rc;
 	}
-	netif_wake_queue(card->dev);
 	rc = qeth_query_ipassists(card,QETH_PROT_IPV6);
 	if (rc) {
 		PRINT_ERR("IPv6 query ipassist failed on %s\n",
@@ -7352,7 +7355,8 @@ qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
 		card->options.large_send = type;
 		return 0;
 	}
-	netif_stop_queue(card->dev);
+	if (card->state == CARD_STATE_UP)
+		netif_tx_disable(card->dev);
 	card->options.large_send = type;
 	switch (card->options.large_send) {
 	case QETH_LARGE_SEND_EDDP:
@@ -7374,7 +7378,8 @@ qeth_set_large_send(struct qeth_card *card, enum qeth_large_send_types type)
 		card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG);
 		break;
 	}
-	netif_wake_queue(card->dev);
+	if (card->state == CARD_STATE_UP)
+		netif_wake_queue(card->dev);
 	return rc;
 }
 
@@ -7427,7 +7432,7 @@ qeth_softsetup_card(struct qeth_card *card)
 	if ((rc = qeth_setrouting_v6(card)))
 		QETH_DBF_TEXT_(setup, 2, "5err%d", rc);
 out:
-	netif_stop_queue(card->dev);
+	netif_tx_disable(card->dev);
 	return 0;
 }
 
@@ -7567,7 +7572,7 @@ qeth_stop_card(struct qeth_card *card, int recovery_mode)
 	if (card->read.state == CH_STATE_UP &&
 	    card->write.state == CH_STATE_UP &&
 	    (card->state == CARD_STATE_UP)) {
-		if (recovery_mode && 
+		if (recovery_mode &&
 		    card->info.type != QETH_CARD_TYPE_OSN) {
 			qeth_stop(card->dev);
 		} else {
@@ -7736,10 +7741,8 @@ static int
 qeth_register_netdev(struct qeth_card *card)
 {
 	QETH_DBF_TEXT(setup, 3, "regnetd");
-	if (card->dev->reg_state != NETREG_UNINITIALIZED) {
-		qeth_netdev_init(card->dev);
+	if (card->dev->reg_state != NETREG_UNINITIALIZED)
 		return 0;
-	}
 	/* sysfs magic */
 	SET_NETDEV_DEV(card->dev, &card->gdev->dev);
 	return register_netdev(card->dev);
@@ -7750,7 +7753,7 @@ qeth_start_again(struct qeth_card *card, int recovery_mode)
 {
 	QETH_DBF_TEXT(setup ,2, "startag");
 
-	if (recovery_mode && 
+	if (recovery_mode &&
 	    card->info.type != QETH_CARD_TYPE_OSN) {
 		qeth_open(card->dev);
 	} else {
@@ -8014,7 +8017,6 @@ static int (*qeth_old_arp_constructor) (struct neighbour *);
 
 static struct neigh_ops arp_direct_ops_template = {
 	.family = AF_INET,
-	.destructor = NULL,
 	.solicit = NULL,
 	.error_report = NULL,
 	.output = dev_queue_xmit,
diff --git a/drivers/s390/net/qeth_mpc.h b/drivers/s390/net/qeth_mpc.h
index 011c41041029..0477c47471c5 100644
--- a/drivers/s390/net/qeth_mpc.h
+++ b/drivers/s390/net/qeth_mpc.h
@@ -445,7 +445,7 @@ enum qeth_ipa_arp_return_codes {
 /* Helper functions */
 #define IS_IPA_REPLY(cmd) ((cmd->hdr.initiator == IPA_CMD_INITIATOR_HOST) || \
 			   (cmd->hdr.initiator == IPA_CMD_INITIATOR_OSA_REPLY))
-	
+
 /*****************************************************************************/
 /* END OF   IP Assist related definitions                                    */
 /*****************************************************************************/
@@ -490,7 +490,7 @@ extern unsigned char ULP_ENABLE[];
 /* Layer 2 defintions */
 #define QETH_PROT_LAYER2 0x08
 #define QETH_PROT_TCPIP  0x03
-#define QETH_PROT_OSN2   0x0a     
+#define QETH_PROT_OSN2   0x0a
 #define QETH_ULP_ENABLE_PROT_TYPE(buffer) (buffer+0x50)
 #define QETH_IPA_CMD_PROT_TYPE(buffer) (buffer+0x19)
 
diff --git a/drivers/s390/net/qeth_proc.c b/drivers/s390/net/qeth_proc.c
index 360d782c7ada..66f2da14e6e3 100644
--- a/drivers/s390/net/qeth_proc.c
+++ b/drivers/s390/net/qeth_proc.c
@@ -36,7 +36,7 @@ qeth_procfile_seq_start(struct seq_file *s, loff_t *offset)
 {
 	struct device *dev = NULL;
 	loff_t nr = 0;
-	
+
 	down_read(&qeth_ccwgroup_driver.driver.bus->subsys.rwsem);
 	if (*offset == 0)
 		return SEQ_START_TOKEN;
@@ -60,8 +60,8 @@ static void *
 qeth_procfile_seq_next(struct seq_file *s, void *it, loff_t *offset)
 {
 	struct device *prev, *next;
-	
-	if (it == SEQ_START_TOKEN) 
+
+	if (it == SEQ_START_TOKEN)
 		prev = NULL;
 	else
 		prev = (struct device *) it;
@@ -180,7 +180,7 @@ qeth_perf_procfile_seq_show(struct seq_file *s, void *it)
 	struct device *device;
 	struct qeth_card *card;
 
-	
+
 	if (it == SEQ_START_TOKEN)
 		return 0;
 
diff --git a/drivers/s390/net/qeth_sys.c b/drivers/s390/net/qeth_sys.c
index 882d419e4160..185a9cfbcbdc 100644
--- a/drivers/s390/net/qeth_sys.c
+++ b/drivers/s390/net/qeth_sys.c
@@ -785,7 +785,7 @@ qeth_dev_large_send_store(struct device *dev, struct device_attribute *attr, con
 	}
 	if (card->options.large_send == type)
 		return count;
-	if ((rc = qeth_set_large_send(card, type)))	
+	if ((rc = qeth_set_large_send(card, type)))
 		return rc;
 	return count;
 }
@@ -1682,7 +1682,7 @@ qeth_create_device_attributes(struct device *dev)
 	if (card->info.type == QETH_CARD_TYPE_OSN)
 		return sysfs_create_group(&dev->kobj,
 					  &qeth_osn_device_attr_group);
-   	
+
 	if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_attr_group)))
 		return ret;
 	if ((ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group))){
@@ -1713,7 +1713,7 @@ qeth_remove_device_attributes(struct device *dev)
 	if (card->info.type == QETH_CARD_TYPE_OSN)
 		return sysfs_remove_group(&dev->kobj,
 					  &qeth_osn_device_attr_group);
-		      
+
 	sysfs_remove_group(&dev->kobj, &qeth_device_attr_group);
 	sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
 	sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
diff --git a/drivers/s390/net/qeth_tso.h b/drivers/s390/net/qeth_tso.h
index 1286ddea450b..24ef40ca9562 100644
--- a/drivers/s390/net/qeth_tso.h
+++ b/drivers/s390/net/qeth_tso.h
@@ -117,11 +117,11 @@ __qeth_fill_buffer_frag(struct sk_buff *skb, struct qdio_buffer *buffer,
 	int fragno;
 	unsigned long addr;
 	int element, cnt, dlen;
-	
+
 	fragno = skb_shinfo(skb)->nr_frags;
 	element = *next_element_to_fill;
 	dlen = 0;
-	
+
 	if (is_tso)
 		buffer->element[element].flags =
 			SBAL_FLAGS_MIDDLE_FRAG;
diff --git a/drivers/s390/s390mach.c b/drivers/s390/s390mach.c
index 3bf466603512..f99e55308b32 100644
--- a/drivers/s390/s390mach.c
+++ b/drivers/s390/s390mach.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <linux/errno.h>
 #include <linux/workqueue.h>
+#include <linux/time.h>
 
 #include <asm/lowcore.h>
 
@@ -362,12 +363,19 @@ s390_revalidate_registers(struct mci *mci)
 	return kill_task;
 }
 
+#define MAX_IPD_COUNT	29
+#define MAX_IPD_TIME	(5 * 60 * USEC_PER_SEC) /* 5 minutes */
+
 /*
  * machine check handler.
  */
 void
 s390_do_machine_check(struct pt_regs *regs)
 {
+	static DEFINE_SPINLOCK(ipd_lock);
+	static unsigned long long last_ipd;
+	static int ipd_count;
+	unsigned long long tmp;
 	struct mci *mci;
 	struct mcck_struct *mcck;
 	int umode;
@@ -404,11 +412,27 @@ s390_do_machine_check(struct pt_regs *regs)
 				s390_handle_damage("processing backup machine "
 						   "check with damage.");
 			}
-			if (!umode)
-				s390_handle_damage("processing backup machine "
-						   "check in kernel mode.");
-			mcck->kill_task = 1;
-			mcck->mcck_code = *(unsigned long long *) mci;
+
+			/*
+			 * Nullifying exigent condition, therefore we might
+			 * retry this instruction.
+			 */
+
+			spin_lock(&ipd_lock);
+
+			tmp = get_clock();
+
+			if (((tmp - last_ipd) >> 12) < MAX_IPD_TIME)
+				ipd_count++;
+			else
+				ipd_count = 1;
+
+			last_ipd = tmp;
+
+			if (ipd_count == MAX_IPD_COUNT)
+				s390_handle_damage("too many ipd retries.");
+
+			spin_unlock(&ipd_lock);
 		}
 		else {
 			/* Processing damage -> stopping machine */