[deliverable/linux.git] / drivers / s390 / scsi / zfcp_sysfs.c

/*
 * zfcp device driver
 *
 * sysfs attributes.
 *
 * Copyright IBM Corp. 2008, 2010
 */

#define KMSG_COMPONENT "zfcp"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt

#include <linux/slab.h>
#include "zfcp_ext.h"

#define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \
struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\
							    _show, _store)
#define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value)	       \
static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev,	       \
						   struct device_attribute *at,\
						   char *buf)		       \
{									       \
	struct _feat_def *_feat = container_of(dev, struct _feat_def, dev);    \
									       \
	return sprintf(buf, _format, _value);				       \
}									       \
static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO,				       \
		     zfcp_sysfs_##_feat##_##_name##_show, NULL);

#define ZFCP_DEFINE_A_ATTR(_name, _format, _value)			     \
static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev,	     \
						 struct device_attribute *at,\
						 char *buf)		     \
{									     \
	struct ccw_device *cdev = to_ccwdev(dev);			     \
	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);	     \
	int i;								     \
									     \
	if (!adapter)							     \
		return -ENODEV;						     \
									     \
	i = sprintf(buf, _format, _value);				     \
	zfcp_ccw_adapter_put(adapter);					     \
	return i;							     \
}									     \
static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO,				     \
		     zfcp_sysfs_adapter_##_name##_show, NULL);

ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status));
ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n",
		   (unsigned long long) adapter->peer_wwnn);
ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n",
		   (unsigned long long) adapter->peer_wwpn);
ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id);
ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version);
ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version);
ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version);
ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) &
					 ZFCP_STATUS_COMMON_ERP_INUSE) != 0);

ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n",
		 atomic_read(&port->status));
ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n",
		 (atomic_read(&port->status) &
		  ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
ZFCP_DEFINE_ATTR(zfcp_port, port, access_denied, "%d\n",
		 (atomic_read(&port->status) &
		  ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);

ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n",
		 zfcp_unit_sdev_status(unit));
ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n",
		 (zfcp_unit_sdev_status(unit) &
		  ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
		 (zfcp_unit_sdev_status(unit) &
		  ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n",
		 (zfcp_unit_sdev_status(unit) &
		  ZFCP_STATUS_LUN_SHARED) != 0);
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n",
		 (zfcp_unit_sdev_status(unit) &
		  ZFCP_STATUS_LUN_READONLY) != 0);

static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
					   struct device_attribute *attr,
					   char *buf)
{
	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);

	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
		return sprintf(buf, "1\n");

	return sprintf(buf, "0\n");
}

static ssize_t zfcp_sysfs_port_failed_store(struct device *dev,
					    struct device_attribute *attr,
					    const char *buf, size_t count)
{
	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
	unsigned long val;

	if (strict_strtoul(buf, 0, &val) || val != 0)
		return -EINVAL;

	zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING);
	zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2");
	zfcp_erp_wait(port->adapter);

	return count;
}
static ZFCP_DEV_ATTR(port, failed, S_IWUSR | S_IRUGO,
		     zfcp_sysfs_port_failed_show,
		     zfcp_sysfs_port_failed_store);

static ssize_t zfcp_sysfs_unit_failed_show(struct device *dev,
					   struct device_attribute *attr,
					   char *buf)
{
	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
	struct scsi_device *sdev;
	unsigned int status, failed = 1;

	sdev = zfcp_unit_sdev(unit);
	if (sdev) {
		status = atomic_read(&sdev_to_zfcp(sdev)->status);
		failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0;
		scsi_device_put(sdev);
	}

	return sprintf(buf, "%d\n", failed);
}

static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev,
					    struct device_attribute *attr,
					    const char *buf, size_t count)
{
	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
	unsigned long val;
	struct scsi_device *sdev;

	if (strict_strtoul(buf, 0, &val) || val != 0)
		return -EINVAL;

	sdev = zfcp_unit_sdev(unit);
	if (sdev) {
		zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
		zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
				    "syufai2");
		zfcp_erp_wait(unit->port->adapter);
	} else
		zfcp_unit_scsi_scan(unit);

	return count;
}
static ZFCP_DEV_ATTR(unit, failed, S_IWUSR | S_IRUGO,
		     zfcp_sysfs_unit_failed_show,
		     zfcp_sysfs_unit_failed_store);

static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev,
					      struct device_attribute *attr,
					      char *buf)
{
	struct ccw_device *cdev = to_ccwdev(dev);
	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
	int i;

	if (!adapter)
		return -ENODEV;

	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
		i = sprintf(buf, "1\n");
	else
		i = sprintf(buf, "0\n");

	zfcp_ccw_adapter_put(adapter);
	return i;
}

static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
					       struct device_attribute *attr,
					       const char *buf, size_t count)
{
	struct ccw_device *cdev = to_ccwdev(dev);
	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
	unsigned long val;
	int retval = 0;

	if (!adapter)
		return -ENODEV;

	if (strict_strtoul(buf, 0, &val) || val != 0) {
		retval = -EINVAL;
		goto out;
	}

	zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
				"syafai2");
	zfcp_erp_wait(adapter);
out:
	zfcp_ccw_adapter_put(adapter);
	return retval ? retval : (ssize_t) count;
}
static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR | S_IRUGO,
		     zfcp_sysfs_adapter_failed_show,
		     zfcp_sysfs_adapter_failed_store);

static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
					    struct device_attribute *attr,
					    const char *buf, size_t count)
{
	struct ccw_device *cdev = to_ccwdev(dev);
	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);

	if (!adapter)
		return -ENODEV;

	/* sync the user-space- with the kernel-invocation of scan_work */
	queue_work(adapter->work_queue, &adapter->scan_work);
	flush_work(&adapter->scan_work);
	zfcp_ccw_adapter_put(adapter);

	return (ssize_t) count;
}
static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
		     zfcp_sysfs_port_rescan_store);

static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
					    struct device_attribute *attr,
					    const char *buf, size_t count)
{
	struct ccw_device *cdev = to_ccwdev(dev);
	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
	struct zfcp_port *port;
	u64 wwpn;
	int retval = -EINVAL;

	if (!adapter)
		return -ENODEV;

	if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn))
		goto out;

	port = zfcp_get_port_by_wwpn(adapter, wwpn);
	if (!port)
		goto out;
	else
		retval = 0;

	write_lock_irq(&adapter->port_list_lock);
	list_del(&port->list);
	write_unlock_irq(&adapter->port_list_lock);

	put_device(&port->dev);

	zfcp_erp_port_shutdown(port, 0, "syprs_1");
	zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
 out:
	zfcp_ccw_adapter_put(adapter);
	return retval ? retval : (ssize_t) count;
}
static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL,
		     zfcp_sysfs_port_remove_store);

static struct attribute *zfcp_adapter_attrs[] = {
	&dev_attr_adapter_failed.attr,
	&dev_attr_adapter_in_recovery.attr,
	&dev_attr_adapter_port_remove.attr,
	&dev_attr_adapter_port_rescan.attr,
	&dev_attr_adapter_peer_wwnn.attr,
	&dev_attr_adapter_peer_wwpn.attr,
	&dev_attr_adapter_peer_d_id.attr,
	&dev_attr_adapter_card_version.attr,
	&dev_attr_adapter_lic_version.attr,
	&dev_attr_adapter_status.attr,
	&dev_attr_adapter_hardware_version.attr,
	NULL
};

struct attribute_group zfcp_sysfs_adapter_attrs = {
	.attrs = zfcp_adapter_attrs,
};

static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
					 struct device_attribute *attr,
					 const char *buf, size_t count)
{
	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
	u64 fcp_lun;

	if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
		return -EINVAL;

	if (zfcp_unit_add(port, fcp_lun))
		return -EINVAL;

	return count;
}
static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store);

static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
					    struct device_attribute *attr,
					    const char *buf, size_t count)
{
	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
	u64 fcp_lun;

	if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
		return -EINVAL;

	if (zfcp_unit_remove(port, fcp_lun))
		return -EINVAL;

	return count;
}
static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);

static struct attribute *zfcp_port_attrs[] = {
	&dev_attr_unit_add.attr,
	&dev_attr_unit_remove.attr,
	&dev_attr_port_failed.attr,
	&dev_attr_port_in_recovery.attr,
	&dev_attr_port_status.attr,
	&dev_attr_port_access_denied.attr,
	NULL
};

/**
 * zfcp_sysfs_port_attrs - sysfs attributes for all other ports
 */
struct attribute_group zfcp_sysfs_port_attrs = {
	.attrs = zfcp_port_attrs,
};

static struct attribute *zfcp_unit_attrs[] = {
	&dev_attr_unit_failed.attr,
	&dev_attr_unit_in_recovery.attr,
	&dev_attr_unit_status.attr,
	&dev_attr_unit_access_denied.attr,
	&dev_attr_unit_access_shared.attr,
	&dev_attr_unit_access_readonly.attr,
	NULL
};

struct attribute_group zfcp_sysfs_unit_attrs = {
	.attrs = zfcp_unit_attrs,
};

#define ZFCP_DEFINE_LATENCY_ATTR(_name) 				\
static ssize_t								\
zfcp_sysfs_unit_##_name##_latency_show(struct device *dev,		\
				       struct device_attribute *attr,	\
				       char *buf) {			\
	struct scsi_device *sdev = to_scsi_device(dev);			\
	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);		\
	struct zfcp_latencies *lat = &zfcp_sdev->latencies;		\
	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;	\
	unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc;	\
									\
	spin_lock_bh(&lat->lock);					\
	fsum = lat->_name.fabric.sum * adapter->timer_ticks;		\
	fmin = lat->_name.fabric.min * adapter->timer_ticks;		\
	fmax = lat->_name.fabric.max * adapter->timer_ticks;		\
	csum = lat->_name.channel.sum * adapter->timer_ticks;		\
	cmin = lat->_name.channel.min * adapter->timer_ticks;		\
	cmax = lat->_name.channel.max * adapter->timer_ticks;		\
	cc  = lat->_name.counter;					\
	spin_unlock_bh(&lat->lock);					\
									\
	do_div(fsum, 1000);						\
	do_div(fmin, 1000);						\
	do_div(fmax, 1000);						\
	do_div(csum, 1000);						\
	do_div(cmin, 1000);						\
	do_div(cmax, 1000);						\
									\
	return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n",	\
		       fmin, fmax, fsum, cmin, cmax, csum, cc); 	\
}									\
static ssize_t								\
zfcp_sysfs_unit_##_name##_latency_store(struct device *dev,		\
					struct device_attribute *attr,	\
					const char *buf, size_t count)	\
{									\
	struct scsi_device *sdev = to_scsi_device(dev);			\
	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);		\
	struct zfcp_latencies *lat = &zfcp_sdev->latencies;		\
	unsigned long flags;						\
									\
	spin_lock_irqsave(&lat->lock, flags);				\
	lat->_name.fabric.sum = 0;					\
	lat->_name.fabric.min = 0xFFFFFFFF;				\
	lat->_name.fabric.max = 0;					\
	lat->_name.channel.sum = 0;					\
	lat->_name.channel.min = 0xFFFFFFFF;				\
	lat->_name.channel.max = 0;					\
	lat->_name.counter = 0;						\
	spin_unlock_irqrestore(&lat->lock, flags);			\
									\
	return (ssize_t) count;						\
}									\
static DEVICE_ATTR(_name##_latency, S_IWUSR | S_IRUGO,			\
		   zfcp_sysfs_unit_##_name##_latency_show,		\
		   zfcp_sysfs_unit_##_name##_latency_store);

ZFCP_DEFINE_LATENCY_ATTR(read);
ZFCP_DEFINE_LATENCY_ATTR(write);
ZFCP_DEFINE_LATENCY_ATTR(cmd);

#define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value)			\
static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev,	\
					      struct device_attribute *attr,\
					      char *buf)                 \
{                                                                        \
	struct scsi_device *sdev = to_scsi_device(dev);			 \
	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev);		 \
	struct zfcp_port *port = zfcp_sdev->port;			 \
									 \
	return sprintf(buf, _format, _value);                            \
}                                                                        \
static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL);

ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n",
		      dev_name(&port->adapter->ccw_device->dev));
ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n",
		      (unsigned long long) port->wwpn);

static ssize_t zfcp_sysfs_scsi_fcp_lun_show(struct device *dev,
					    struct device_attribute *attr,
					    char *buf)
{
	struct scsi_device *sdev = to_scsi_device(dev);

	return sprintf(buf, "0x%016llx\n", zfcp_scsi_dev_lun(sdev));
}
static DEVICE_ATTR(fcp_lun, S_IRUGO, zfcp_sysfs_scsi_fcp_lun_show, NULL);

struct device_attribute *zfcp_sysfs_sdev_attrs[] = {
	&dev_attr_fcp_lun,
	&dev_attr_wwpn,
	&dev_attr_hba_id,
	&dev_attr_read_latency,
	&dev_attr_write_latency,
	&dev_attr_cmd_latency,
	NULL
};

static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev,
					    struct device_attribute *attr,
					    char *buf)
{
	struct Scsi_Host *scsi_host = dev_to_shost(dev);
	struct fsf_qtcb_bottom_port *qtcb_port;
	struct zfcp_adapter *adapter;
	int retval;

	adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
	if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
		return -EOPNOTSUPP;

	qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL);
	if (!qtcb_port)
		return -ENOMEM;

	retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port);
	if (!retval)
		retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util,
				 qtcb_port->cb_util, qtcb_port->a_util);
	kfree(qtcb_port);
	return retval;
}
static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL);

static int zfcp_sysfs_adapter_ex_config(struct device *dev,
					struct fsf_statistics_info *stat_inf)
{
	struct Scsi_Host *scsi_host = dev_to_shost(dev);
	struct fsf_qtcb_bottom_config *qtcb_config;
	struct zfcp_adapter *adapter;
	int retval;

	adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
	if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
		return -EOPNOTSUPP;

	qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config),
			      GFP_KERNEL);
	if (!qtcb_config)
		return -ENOMEM;

	retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config);
	if (!retval)
		*stat_inf = qtcb_config->stat_info;

	kfree(qtcb_config);
	return retval;
}

#define ZFCP_SHOST_ATTR(_name, _format, _arg...)			\
static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev,	\
						 struct device_attribute *attr,\
						 char *buf)		\
{									\
	struct fsf_statistics_info stat_info;				\
	int retval;							\
									\
	retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info);		\
	if (retval)							\
		return retval;						\
									\
	return sprintf(buf, _format, ## _arg);				\
}									\
static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL);

ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n",
		(unsigned long long) stat_info.input_req,
		(unsigned long long) stat_info.output_req,
		(unsigned long long) stat_info.control_req);

ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n",
		(unsigned long long) stat_info.input_mb,
		(unsigned long long) stat_info.output_mb);

ZFCP_SHOST_ATTR(seconds_active, "%llu\n",
		(unsigned long long) stat_info.seconds_act);

static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
					      struct device_attribute *attr,
					      char *buf)
{
	struct Scsi_Host *scsi_host = class_to_shost(dev);
	struct zfcp_qdio *qdio =
		((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio;
	u64 util;

	spin_lock_bh(&qdio->stat_lock);
	util = qdio->req_q_util;
	spin_unlock_bh(&qdio->stat_lock);

	return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full),
		       (unsigned long long)util);
}
static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);

struct device_attribute *zfcp_sysfs_shost_attrs[] = {
	&dev_attr_utilization,
	&dev_attr_requests,
	&dev_attr_megabytes,
	&dev_attr_seconds_active,
	&dev_attr_queue_full,
	NULL
};
Commit	Line	Data
60221920 SS	1	/*
	2	* zfcp device driver
	3	*
	4	* sysfs attributes.
	5	*
a53c8fab	6	* Copyright IBM Corp. 2008, 2010
60221920 SS	7	*/
60221920 SS	8
ecf39d42 CS	9	#define KMSG_COMPONENT "zfcp"
	10	#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
	11
5a0e3ad6	12	#include <linux/slab.h>
60221920 SS	13	#include "zfcp_ext.h"
	14
	15	#define ZFCP_DEV_ATTR(_feat, _name, _mode, _show, _store) \
	16	struct device_attribute dev_attr_##_feat##_##_name = __ATTR(_name, _mode,\
	17	_show, _store)
	18	#define ZFCP_DEFINE_ATTR(_feat_def, _feat, _name, _format, _value) \
	19	static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
	20	struct device_attribute *at,\
	21	char *buf) \
	22	{ \
615f59e0	23	struct _feat_def *_feat = container_of(dev, struct _feat_def, dev); \
60221920 SS	24	\
	25	return sprintf(buf, _format, _value); \
	26	} \
	27	static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
	28	zfcp_sysfs_##_feat##_##_name##_show, NULL);
	29
de3dc572 SS	30	#define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
	31	static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
	32	struct device_attribute *at,\
	33	char *buf) \
	34	{ \
	35	struct ccw_device *cdev = to_ccwdev(dev); \
	36	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev); \
	37	int i; \
	38	\
	39	if (!adapter) \
	40	return -ENODEV; \
	41	\
	42	i = sprintf(buf, _format, _value); \
	43	zfcp_ccw_adapter_put(adapter); \
	44	return i; \
	45	} \
	46	static ZFCP_DEV_ATTR(adapter, _name, S_IRUGO, \
	47	zfcp_sysfs_adapter_##_name##_show, NULL);
	48
	49	ZFCP_DEFINE_A_ATTR(status, "0x%08x\n", atomic_read(&adapter->status));
	50	ZFCP_DEFINE_A_ATTR(peer_wwnn, "0x%016llx\n",
	51	(unsigned long long) adapter->peer_wwnn);
	52	ZFCP_DEFINE_A_ATTR(peer_wwpn, "0x%016llx\n",
	53	(unsigned long long) adapter->peer_wwpn);
	54	ZFCP_DEFINE_A_ATTR(peer_d_id, "0x%06x\n", adapter->peer_d_id);
	55	ZFCP_DEFINE_A_ATTR(card_version, "0x%04x\n", adapter->hydra_version);
	56	ZFCP_DEFINE_A_ATTR(lic_version, "0x%08x\n", adapter->fsf_lic_version);
	57	ZFCP_DEFINE_A_ATTR(hardware_version, "0x%08x\n", adapter->hardware_version);
	58	ZFCP_DEFINE_A_ATTR(in_recovery, "%d\n", (atomic_read(&adapter->status) &
	59	ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
60221920 SS	60
	61	ZFCP_DEFINE_ATTR(zfcp_port, port, status, "0x%08x\n",
	62	atomic_read(&port->status));
	63	ZFCP_DEFINE_ATTR(zfcp_port, port, in_recovery, "%d\n",
	64	(atomic_read(&port->status) &
	65	ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
	66	ZFCP_DEFINE_ATTR(zfcp_port, port, access_denied, "%d\n",
	67	(atomic_read(&port->status) &
	68	ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
	69
	70	ZFCP_DEFINE_ATTR(zfcp_unit, unit, status, "0x%08x\n",
b62a8d9b	71	zfcp_unit_sdev_status(unit));
60221920	72	ZFCP_DEFINE_ATTR(zfcp_unit, unit, in_recovery, "%d\n",
b62a8d9b	73	(zfcp_unit_sdev_status(unit) &
60221920 SS	74	ZFCP_STATUS_COMMON_ERP_INUSE) != 0);
60221920 SS	75	ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
b62a8d9b	76	(zfcp_unit_sdev_status(unit) &
60221920 SS	77	ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
60221920 SS	78	ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_shared, "%d\n",
b62a8d9b CS	79	(zfcp_unit_sdev_status(unit) &
b62a8d9b CS	80	ZFCP_STATUS_LUN_SHARED) != 0);
60221920	81	ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_readonly, "%d\n",
b62a8d9b CS	82	(zfcp_unit_sdev_status(unit) &
b62a8d9b CS	83	ZFCP_STATUS_LUN_READONLY) != 0);
60221920	84
e4b9857f CS	85	static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
	86	struct device_attribute *attr,
	87	char *buf)
	88	{
	89	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
60221920	90
e4b9857f CS	91	if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
	92	return sprintf(buf, "1\n");
	93
	94	return sprintf(buf, "0\n");
	95	}
	96
	97	static ssize_t zfcp_sysfs_port_failed_store(struct device *dev,
	98	struct device_attribute *attr,
	99	const char *buf, size_t count)
	100	{
	101	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
	102	unsigned long val;
	103
	104	if (strict_strtoul(buf, 0, &val) \|\| val != 0)
	105	return -EINVAL;
	106
edaed859	107	zfcp_erp_set_port_status(port, ZFCP_STATUS_COMMON_RUNNING);
ea4a3a6a	108	zfcp_erp_port_reopen(port, ZFCP_STATUS_COMMON_ERP_FAILED, "sypfai2");
e4b9857f CS	109	zfcp_erp_wait(port->adapter);
	110
	111	return count;
	112	}
	113	static ZFCP_DEV_ATTR(port, failed, S_IWUSR \| S_IRUGO,
	114	zfcp_sysfs_port_failed_show,
	115	zfcp_sysfs_port_failed_store);
	116
	117	static ssize_t zfcp_sysfs_unit_failed_show(struct device *dev,
	118	struct device_attribute *attr,
	119	char *buf)
	120	{
	121	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
b62a8d9b CS	122	struct scsi_device *sdev;
	123	unsigned int status, failed = 1;
	124
	125	sdev = zfcp_unit_sdev(unit);
	126	if (sdev) {
	127	status = atomic_read(&sdev_to_zfcp(sdev)->status);
	128	failed = status & ZFCP_STATUS_COMMON_ERP_FAILED ? 1 : 0;
	129	scsi_device_put(sdev);
	130	}
e4b9857f	131
b62a8d9b	132	return sprintf(buf, "%d\n", failed);
e4b9857f CS	133	}
	134
	135	static ssize_t zfcp_sysfs_unit_failed_store(struct device *dev,
	136	struct device_attribute *attr,
	137	const char *buf, size_t count)
	138	{
	139	struct zfcp_unit *unit = container_of(dev, struct zfcp_unit, dev);
	140	unsigned long val;
b62a8d9b	141	struct scsi_device *sdev;
e4b9857f CS	142
	143	if (strict_strtoul(buf, 0, &val) \|\| val != 0)
	144	return -EINVAL;
	145
b62a8d9b CS	146	sdev = zfcp_unit_sdev(unit);
b62a8d9b CS	147	if (sdev) {
edaed859	148	zfcp_erp_set_lun_status(sdev, ZFCP_STATUS_COMMON_RUNNING);
b62a8d9b	149	zfcp_erp_lun_reopen(sdev, ZFCP_STATUS_COMMON_ERP_FAILED,
ea4a3a6a	150	"syufai2");
b62a8d9b CS	151	zfcp_erp_wait(unit->port->adapter);
	152	} else
	153	zfcp_unit_scsi_scan(unit);
e4b9857f CS	154
	155	return count;
	156	}
	157	static ZFCP_DEV_ATTR(unit, failed, S_IWUSR \| S_IRUGO,
	158	zfcp_sysfs_unit_failed_show,
	159	zfcp_sysfs_unit_failed_store);
60221920	160
de3dc572 SS	161	static ssize_t zfcp_sysfs_adapter_failed_show(struct device *dev,
	162	struct device_attribute *attr,
	163	char *buf)
	164	{
	165	struct ccw_device *cdev = to_ccwdev(dev);
	166	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
	167	int i;
	168
	169	if (!adapter)
	170	return -ENODEV;
	171
	172	if (atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_ERP_FAILED)
	173	i = sprintf(buf, "1\n");
	174	else
	175	i = sprintf(buf, "0\n");
	176
	177	zfcp_ccw_adapter_put(adapter);
	178	return i;
	179	}
	180
	181	static ssize_t zfcp_sysfs_adapter_failed_store(struct device *dev,
	182	struct device_attribute *attr,
	183	const char *buf, size_t count)
	184	{
	185	struct ccw_device *cdev = to_ccwdev(dev);
	186	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
	187	unsigned long val;
	188	int retval = 0;
	189
	190	if (!adapter)
	191	return -ENODEV;
	192
de3dc572 SS	193	if (strict_strtoul(buf, 0, &val) \|\| val != 0) {
	194	retval = -EINVAL;
	195	goto out;
	196	}
	197
edaed859	198	zfcp_erp_set_adapter_status(adapter, ZFCP_STATUS_COMMON_RUNNING);
de3dc572	199	zfcp_erp_adapter_reopen(adapter, ZFCP_STATUS_COMMON_ERP_FAILED,
ea4a3a6a	200	"syafai2");
de3dc572 SS	201	zfcp_erp_wait(adapter);
	202	out:
	203	zfcp_ccw_adapter_put(adapter);
	204	return retval ? retval : (ssize_t) count;
	205	}
	206	static ZFCP_DEV_ATTR(adapter, failed, S_IWUSR \| S_IRUGO,
	207	zfcp_sysfs_adapter_failed_show,
	208	zfcp_sysfs_adapter_failed_store);
	209
60221920 SS	210	static ssize_t zfcp_sysfs_port_rescan_store(struct device *dev,
	211	struct device_attribute *attr,
	212	const char *buf, size_t count)
	213	{
de3dc572 SS	214	struct ccw_device *cdev = to_ccwdev(dev);
de3dc572 SS	215	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
60221920	216
de3dc572 SS	217	if (!adapter)
	218	return -ENODEV;
	219
9eae07ef SS	220	/* sync the user-space- with the kernel-invocation of scan_work */
	221	queue_work(adapter->work_queue, &adapter->scan_work);
	222	flush_work(&adapter->scan_work);
de3dc572	223	zfcp_ccw_adapter_put(adapter);
6b183334	224
9eae07ef	225	return (ssize_t) count;
60221920 SS	226	}
	227	static ZFCP_DEV_ATTR(adapter, port_rescan, S_IWUSR, NULL,
	228	zfcp_sysfs_port_rescan_store);
	229
	230	static ssize_t zfcp_sysfs_port_remove_store(struct device *dev,
	231	struct device_attribute *attr,
	232	const char *buf, size_t count)
	233	{
de3dc572 SS	234	struct ccw_device *cdev = to_ccwdev(dev);
de3dc572 SS	235	struct zfcp_adapter *adapter = zfcp_ccw_adapter_by_cdev(cdev);
60221920	236	struct zfcp_port *port;
7ba58c9c	237	u64 wwpn;
6b183334	238	int retval = -EINVAL;
60221920	239
de3dc572 SS	240	if (!adapter)
	241	return -ENODEV;
	242
6b183334	243	if (strict_strtoull(buf, 0, (unsigned long long *) &wwpn))
60221920	244	goto out;
60221920	245
60221920	246	port = zfcp_get_port_by_wwpn(adapter, wwpn);
6b183334	247	if (!port)
60221920	248	goto out;
6b183334 SS	249	else
6b183334 SS	250	retval = 0;
f3450c7b SS	251
	252	write_lock_irq(&adapter->port_list_lock);
	253	list_del(&port->list);
	254	write_unlock_irq(&adapter->port_list_lock);
	255
615f59e0	256	put_device(&port->dev);
f3450c7b	257
ea4a3a6a	258	zfcp_erp_port_shutdown(port, 0, "syprs_1");
615f59e0	259	zfcp_device_unregister(&port->dev, &zfcp_sysfs_port_attrs);
60221920	260	out:
de3dc572	261	zfcp_ccw_adapter_put(adapter);
60221920 SS	262	return retval ? retval : (ssize_t) count;
	263	}
	264	static ZFCP_DEV_ATTR(adapter, port_remove, S_IWUSR, NULL,
	265	zfcp_sysfs_port_remove_store);
	266
	267	static struct attribute *zfcp_adapter_attrs[] = {
	268	&dev_attr_adapter_failed.attr,
	269	&dev_attr_adapter_in_recovery.attr,
	270	&dev_attr_adapter_port_remove.attr,
	271	&dev_attr_adapter_port_rescan.attr,
	272	&dev_attr_adapter_peer_wwnn.attr,
	273	&dev_attr_adapter_peer_wwpn.attr,
	274	&dev_attr_adapter_peer_d_id.attr,
	275	&dev_attr_adapter_card_version.attr,
	276	&dev_attr_adapter_lic_version.attr,
	277	&dev_attr_adapter_status.attr,
	278	&dev_attr_adapter_hardware_version.attr,
	279	NULL
	280	};
	281
	282	struct attribute_group zfcp_sysfs_adapter_attrs = {
	283	.attrs = zfcp_adapter_attrs,
	284	};
	285
	286	static ssize_t zfcp_sysfs_unit_add_store(struct device *dev,
	287	struct device_attribute *attr,
	288	const char *buf, size_t count)
	289	{
615f59e0	290	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
7ba58c9c	291	u64 fcp_lun;
60221920	292
7ba58c9c	293	if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
1daa4eb5	294	return -EINVAL;
60221920	295
1daa4eb5 CS	296	if (zfcp_unit_add(port, fcp_lun))
1daa4eb5 CS	297	return -EINVAL;
60221920	298
1daa4eb5	299	return count;
60221920 SS	300	}
	301	static DEVICE_ATTR(unit_add, S_IWUSR, NULL, zfcp_sysfs_unit_add_store);
	302
	303	static ssize_t zfcp_sysfs_unit_remove_store(struct device *dev,
	304	struct device_attribute *attr,
	305	const char *buf, size_t count)
	306	{
615f59e0	307	struct zfcp_port *port = container_of(dev, struct zfcp_port, dev);
7ba58c9c	308	u64 fcp_lun;
60221920	309
6b183334	310	if (strict_strtoull(buf, 0, (unsigned long long *) &fcp_lun))
1daa4eb5	311	return -EINVAL;
60221920	312
1daa4eb5 CS	313	if (zfcp_unit_remove(port, fcp_lun))
1daa4eb5 CS	314	return -EINVAL;
ecf0c772	315
1daa4eb5	316	return count;
60221920 SS	317	}
	318	static DEVICE_ATTR(unit_remove, S_IWUSR, NULL, zfcp_sysfs_unit_remove_store);
	319
5ab944f9	320	static struct attribute *zfcp_port_attrs[] = {
60221920 SS	321	&dev_attr_unit_add.attr,
	322	&dev_attr_unit_remove.attr,
	323	&dev_attr_port_failed.attr,
	324	&dev_attr_port_in_recovery.attr,
	325	&dev_attr_port_status.attr,
	326	&dev_attr_port_access_denied.attr,
	327	NULL
	328	};
	329
	330	/**
	331	* zfcp_sysfs_port_attrs - sysfs attributes for all other ports
	332	*/
	333	struct attribute_group zfcp_sysfs_port_attrs = {
5ab944f9	334	.attrs = zfcp_port_attrs,
60221920 SS	335	};
	336
	337	static struct attribute *zfcp_unit_attrs[] = {
	338	&dev_attr_unit_failed.attr,
	339	&dev_attr_unit_in_recovery.attr,
	340	&dev_attr_unit_status.attr,
	341	&dev_attr_unit_access_denied.attr,
	342	&dev_attr_unit_access_shared.attr,
	343	&dev_attr_unit_access_readonly.attr,
	344	NULL
	345	};
	346
	347	struct attribute_group zfcp_sysfs_unit_attrs = {
	348	.attrs = zfcp_unit_attrs,
	349	};
	350
	351	#define ZFCP_DEFINE_LATENCY_ATTR(_name) \
	352	static ssize_t \
	353	zfcp_sysfs_unit_##_name##_latency_show(struct device *dev, \
	354	struct device_attribute *attr, \
	355	char *buf) { \
	356	struct scsi_device *sdev = to_scsi_device(dev); \
b62a8d9b CS	357	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
	358	struct zfcp_latencies *lat = &zfcp_sdev->latencies; \
	359	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter; \
60221920 SS	360	unsigned long long fsum, fmin, fmax, csum, cmin, cmax, cc; \
60221920 SS	361	\
49f0f01c	362	spin_lock_bh(&lat->lock); \
60221920 SS	363	fsum = lat->_name.fabric.sum * adapter->timer_ticks; \
	364	fmin = lat->_name.fabric.min * adapter->timer_ticks; \
	365	fmax = lat->_name.fabric.max * adapter->timer_ticks; \
	366	csum = lat->_name.channel.sum * adapter->timer_ticks; \
	367	cmin = lat->_name.channel.min * adapter->timer_ticks; \
	368	cmax = lat->_name.channel.max * adapter->timer_ticks; \
	369	cc = lat->_name.counter; \
49f0f01c	370	spin_unlock_bh(&lat->lock); \
60221920 SS	371	\
	372	do_div(fsum, 1000); \
	373	do_div(fmin, 1000); \
	374	do_div(fmax, 1000); \
	375	do_div(csum, 1000); \
	376	do_div(cmin, 1000); \
	377	do_div(cmax, 1000); \
	378	\
	379	return sprintf(buf, "%llu %llu %llu %llu %llu %llu %llu\n", \
	380	fmin, fmax, fsum, cmin, cmax, csum, cc); \
	381	} \
	382	static ssize_t \
	383	zfcp_sysfs_unit_##_name##_latency_store(struct device *dev, \
	384	struct device_attribute *attr, \
	385	const char *buf, size_t count) \
	386	{ \
	387	struct scsi_device *sdev = to_scsi_device(dev); \
b62a8d9b CS	388	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
b62a8d9b CS	389	struct zfcp_latencies *lat = &zfcp_sdev->latencies; \
60221920 SS	390	unsigned long flags; \
	391	\
	392	spin_lock_irqsave(&lat->lock, flags); \
	393	lat->_name.fabric.sum = 0; \
	394	lat->_name.fabric.min = 0xFFFFFFFF; \
	395	lat->_name.fabric.max = 0; \
	396	lat->_name.channel.sum = 0; \
	397	lat->_name.channel.min = 0xFFFFFFFF; \
	398	lat->_name.channel.max = 0; \
	399	lat->_name.counter = 0; \
	400	spin_unlock_irqrestore(&lat->lock, flags); \
	401	\
	402	return (ssize_t) count; \
	403	} \
	404	static DEVICE_ATTR(_name##_latency, S_IWUSR \| S_IRUGO, \
	405	zfcp_sysfs_unit_##_name##_latency_show, \
	406	zfcp_sysfs_unit_##_name##_latency_store);
	407
	408	ZFCP_DEFINE_LATENCY_ATTR(read);
	409	ZFCP_DEFINE_LATENCY_ATTR(write);
	410	ZFCP_DEFINE_LATENCY_ATTR(cmd);
	411
	412	#define ZFCP_DEFINE_SCSI_ATTR(_name, _format, _value) \
	413	static ssize_t zfcp_sysfs_scsi_##_name##_show(struct device *dev, \
	414	struct device_attribute *attr,\
	415	char *buf) \
	416	{ \
b62a8d9b CS	417	struct scsi_device *sdev = to_scsi_device(dev); \
	418	struct zfcp_scsi_dev *zfcp_sdev = sdev_to_zfcp(sdev); \
	419	struct zfcp_port *port = zfcp_sdev->port; \
60221920 SS	420	\
	421	return sprintf(buf, _format, _value); \
	422	} \
	423	static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_scsi_##_name##_show, NULL);
	424
	425	ZFCP_DEFINE_SCSI_ATTR(hba_id, "%s\n",
b62a8d9b	426	dev_name(&port->adapter->ccw_device->dev));
7ba58c9c	427	ZFCP_DEFINE_SCSI_ATTR(wwpn, "0x%016llx\n",
b62a8d9b	428	(unsigned long long) port->wwpn);
e4b9857f CS	429
	430	static ssize_t zfcp_sysfs_scsi_fcp_lun_show(struct device *dev,
	431	struct device_attribute *attr,
	432	char *buf)
	433	{
	434	struct scsi_device *sdev = to_scsi_device(dev);
e4b9857f	435
b62a8d9b	436	return sprintf(buf, "0x%016llx\n", zfcp_scsi_dev_lun(sdev));
e4b9857f CS	437	}
e4b9857f CS	438	static DEVICE_ATTR(fcp_lun, S_IRUGO, zfcp_sysfs_scsi_fcp_lun_show, NULL);
60221920 SS	439
	440	struct device_attribute *zfcp_sysfs_sdev_attrs[] = {
	441	&dev_attr_fcp_lun,
	442	&dev_attr_wwpn,
	443	&dev_attr_hba_id,
	444	&dev_attr_read_latency,
	445	&dev_attr_write_latency,
	446	&dev_attr_cmd_latency,
	447	NULL
	448	};
	449
	450	static ssize_t zfcp_sysfs_adapter_util_show(struct device *dev,
	451	struct device_attribute *attr,
	452	char *buf)
	453	{
	454	struct Scsi_Host *scsi_host = dev_to_shost(dev);
	455	struct fsf_qtcb_bottom_port *qtcb_port;
	456	struct zfcp_adapter *adapter;
	457	int retval;
	458
	459	adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
	460	if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
	461	return -EOPNOTSUPP;
	462
	463	qtcb_port = kzalloc(sizeof(struct fsf_qtcb_bottom_port), GFP_KERNEL);
	464	if (!qtcb_port)
	465	return -ENOMEM;
	466
564e1c86	467	retval = zfcp_fsf_exchange_port_data_sync(adapter->qdio, qtcb_port);
60221920 SS	468	if (!retval)
	469	retval = sprintf(buf, "%u %u %u\n", qtcb_port->cp_util,
	470	qtcb_port->cb_util, qtcb_port->a_util);
	471	kfree(qtcb_port);
	472	return retval;
	473	}
	474	static DEVICE_ATTR(utilization, S_IRUGO, zfcp_sysfs_adapter_util_show, NULL);
	475
	476	static int zfcp_sysfs_adapter_ex_config(struct device *dev,
	477	struct fsf_statistics_info *stat_inf)
	478	{
	479	struct Scsi_Host *scsi_host = dev_to_shost(dev);
	480	struct fsf_qtcb_bottom_config *qtcb_config;
	481	struct zfcp_adapter *adapter;
	482	int retval;
	483
	484	adapter = (struct zfcp_adapter *) scsi_host->hostdata[0];
	485	if (!(adapter->adapter_features & FSF_FEATURE_MEASUREMENT_DATA))
	486	return -EOPNOTSUPP;
	487
	488	qtcb_config = kzalloc(sizeof(struct fsf_qtcb_bottom_config),
	489	GFP_KERNEL);
	490	if (!qtcb_config)
	491	return -ENOMEM;
	492
564e1c86	493	retval = zfcp_fsf_exchange_config_data_sync(adapter->qdio, qtcb_config);
60221920 SS	494	if (!retval)
	495	*stat_inf = qtcb_config->stat_info;
	496
	497	kfree(qtcb_config);
	498	return retval;
	499	}
	500
	501	#define ZFCP_SHOST_ATTR(_name, _format, _arg...) \
	502	static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
	503	struct device_attribute *attr,\
	504	char *buf) \
	505	{ \
	506	struct fsf_statistics_info stat_info; \
	507	int retval; \
	508	\
	509	retval = zfcp_sysfs_adapter_ex_config(dev, &stat_info); \
	510	if (retval) \
	511	return retval; \
	512	\
	513	return sprintf(buf, _format, ## _arg); \
	514	} \
	515	static DEVICE_ATTR(_name, S_IRUGO, zfcp_sysfs_adapter_##_name##_show, NULL);
	516
	517	ZFCP_SHOST_ATTR(requests, "%llu %llu %llu\n",
	518	(unsigned long long) stat_info.input_req,
	519	(unsigned long long) stat_info.output_req,
	520	(unsigned long long) stat_info.control_req);
	521
	522	ZFCP_SHOST_ATTR(megabytes, "%llu %llu\n",
	523	(unsigned long long) stat_info.input_mb,
	524	(unsigned long long) stat_info.output_mb);
	525
	526	ZFCP_SHOST_ATTR(seconds_active, "%llu\n",
	527	(unsigned long long) stat_info.seconds_act);
	528
2450d3e7 SR	529	static ssize_t zfcp_sysfs_adapter_q_full_show(struct device *dev,
	530	struct device_attribute *attr,
	531	char *buf)
	532	{
	533	struct Scsi_Host *scsi_host = class_to_shost(dev);
564e1c86 SS	534	struct zfcp_qdio *qdio =
564e1c86 SS	535	((struct zfcp_adapter *) scsi_host->hostdata[0])->qdio;
acf7b861 CS	536	u64 util;
acf7b861 CS	537
564e1c86 SS	538	spin_lock_bh(&qdio->stat_lock);
	539	util = qdio->req_q_util;
	540	spin_unlock_bh(&qdio->stat_lock);
2450d3e7	541
564e1c86	542	return sprintf(buf, "%d %llu\n", atomic_read(&qdio->req_q_full),
acf7b861	543	(unsigned long long)util);
2450d3e7 SR	544	}
	545	static DEVICE_ATTR(queue_full, S_IRUGO, zfcp_sysfs_adapter_q_full_show, NULL);
	546
60221920 SS	547	struct device_attribute *zfcp_sysfs_shost_attrs[] = {
	548	&dev_attr_utilization,
	549	&dev_attr_requests,
	550	&dev_attr_megabytes,
	551	&dev_attr_seconds_active,
2450d3e7	552	&dev_attr_queue_full,
60221920 SS	553	NULL
60221920 SS	554	};