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target_core_stat.c
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target_core_stat.c
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/*******************************************************************************
* Filename: target_core_stat.c
*
* Copyright (c) 2011 Rising Tide Systems
* Copyright (c) 2011 Linux-iSCSI.org
*
* Modern ConfigFS group context specific statistics based on original
* target_core_mib.c code
*
* Copyright (c) 2006-2007 SBE, Inc. All Rights Reserved.
*
* Nicholas A. Bellinger <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
******************************************************************************/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <generated/utsrelease.h>
#include <linux/utsname.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/blkdev.h>
#include <linux/configfs.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.h>
#include <target/target_core_configfs.h>
#include <target/configfs_macros.h>
#include "target_core_internal.h"
#ifndef INITIAL_JIFFIES
#define INITIAL_JIFFIES ((unsigned long)(unsigned int) (-300*HZ))
#endif
#define NONE "None"
#define ISPRINT(a) ((a >= ' ') && (a <= '~'))
#define SCSI_LU_INDEX 1
#define LU_COUNT 1
/*
* SCSI Device Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_dev, se_dev_stat_grps);
#define DEV_STAT_SCSI_DEV_ATTR(_name, _mode) \
static struct target_stat_scsi_dev_attribute \
target_stat_scsi_dev_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_dev_show_attr_##_name, \
target_stat_scsi_dev_store_attr_##_name);
#define DEV_STAT_SCSI_DEV_ATTR_RO(_name) \
static struct target_stat_scsi_dev_attribute \
target_stat_scsi_dev_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_dev_show_attr_##_name);
static ssize_t target_stat_scsi_dev_show_attr_inst(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_hba *hba = se_subdev->se_dev_hba;
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
DEV_STAT_SCSI_DEV_ATTR_RO(inst);
static ssize_t target_stat_scsi_dev_show_attr_indx(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
}
DEV_STAT_SCSI_DEV_ATTR_RO(indx);
static ssize_t target_stat_scsi_dev_show_attr_role(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "Target\n");
}
DEV_STAT_SCSI_DEV_ATTR_RO(role);
static ssize_t target_stat_scsi_dev_show_attr_ports(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_port_count);
}
DEV_STAT_SCSI_DEV_ATTR_RO(ports);
CONFIGFS_EATTR_OPS(target_stat_scsi_dev, se_dev_stat_grps, scsi_dev_group);
static struct configfs_attribute *target_stat_scsi_dev_attrs[] = {
&target_stat_scsi_dev_inst.attr,
&target_stat_scsi_dev_indx.attr,
&target_stat_scsi_dev_role.attr,
&target_stat_scsi_dev_ports.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_dev_attrib_ops = {
.show_attribute = target_stat_scsi_dev_attr_show,
.store_attribute = target_stat_scsi_dev_attr_store,
};
static struct config_item_type target_stat_scsi_dev_cit = {
.ct_item_ops = &target_stat_scsi_dev_attrib_ops,
.ct_attrs = target_stat_scsi_dev_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Target Device Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_dev, se_dev_stat_grps);
#define DEV_STAT_SCSI_TGT_DEV_ATTR(_name, _mode) \
static struct target_stat_scsi_tgt_dev_attribute \
target_stat_scsi_tgt_dev_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_tgt_dev_show_attr_##_name, \
target_stat_scsi_tgt_dev_store_attr_##_name);
#define DEV_STAT_SCSI_TGT_DEV_ATTR_RO(_name) \
static struct target_stat_scsi_tgt_dev_attribute \
target_stat_scsi_tgt_dev_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_tgt_dev_show_attr_##_name);
static ssize_t target_stat_scsi_tgt_dev_show_attr_inst(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_hba *hba = se_subdev->se_dev_hba;
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(inst);
static ssize_t target_stat_scsi_tgt_dev_show_attr_indx(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(indx);
static ssize_t target_stat_scsi_tgt_dev_show_attr_num_lus(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(num_lus);
static ssize_t target_stat_scsi_tgt_dev_show_attr_status(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
char status[16];
if (!dev)
return -ENODEV;
switch (dev->dev_status) {
case TRANSPORT_DEVICE_ACTIVATED:
strcpy(status, "activated");
break;
case TRANSPORT_DEVICE_DEACTIVATED:
strcpy(status, "deactivated");
break;
case TRANSPORT_DEVICE_SHUTDOWN:
strcpy(status, "shutdown");
break;
case TRANSPORT_DEVICE_OFFLINE_ACTIVATED:
case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED:
strcpy(status, "offline");
break;
default:
sprintf(status, "unknown(%d)", dev->dev_status);
break;
}
return snprintf(page, PAGE_SIZE, "%s\n", status);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(status);
static ssize_t target_stat_scsi_tgt_dev_show_attr_non_access_lus(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
int non_accessible_lus;
if (!dev)
return -ENODEV;
switch (dev->dev_status) {
case TRANSPORT_DEVICE_ACTIVATED:
non_accessible_lus = 0;
break;
case TRANSPORT_DEVICE_DEACTIVATED:
case TRANSPORT_DEVICE_SHUTDOWN:
case TRANSPORT_DEVICE_OFFLINE_ACTIVATED:
case TRANSPORT_DEVICE_OFFLINE_DEACTIVATED:
default:
non_accessible_lus = 1;
break;
}
return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(non_access_lus);
static ssize_t target_stat_scsi_tgt_dev_show_attr_resets(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
}
DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets);
CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_dev, se_dev_stat_grps, scsi_tgt_dev_group);
static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = {
&target_stat_scsi_tgt_dev_inst.attr,
&target_stat_scsi_tgt_dev_indx.attr,
&target_stat_scsi_tgt_dev_num_lus.attr,
&target_stat_scsi_tgt_dev_status.attr,
&target_stat_scsi_tgt_dev_non_access_lus.attr,
&target_stat_scsi_tgt_dev_resets.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_tgt_dev_attrib_ops = {
.show_attribute = target_stat_scsi_tgt_dev_attr_show,
.store_attribute = target_stat_scsi_tgt_dev_attr_store,
};
static struct config_item_type target_stat_scsi_tgt_dev_cit = {
.ct_item_ops = &target_stat_scsi_tgt_dev_attrib_ops,
.ct_attrs = target_stat_scsi_tgt_dev_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Logical Unit Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_lu, se_dev_stat_grps);
#define DEV_STAT_SCSI_LU_ATTR(_name, _mode) \
static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_lu_show_attr_##_name, \
target_stat_scsi_lu_store_attr_##_name);
#define DEV_STAT_SCSI_LU_ATTR_RO(_name) \
static struct target_stat_scsi_lu_attribute target_stat_scsi_lu_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_lu_show_attr_##_name);
static ssize_t target_stat_scsi_lu_show_attr_inst(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_hba *hba = se_subdev->se_dev_hba;
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
DEV_STAT_SCSI_LU_ATTR_RO(inst);
static ssize_t target_stat_scsi_lu_show_attr_dev(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
}
DEV_STAT_SCSI_LU_ATTR_RO(dev);
static ssize_t target_stat_scsi_lu_show_attr_indx(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX);
}
DEV_STAT_SCSI_LU_ATTR_RO(indx);
static ssize_t target_stat_scsi_lu_show_attr_lun(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* FIXME: scsiLuDefaultLun */
return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0);
}
DEV_STAT_SCSI_LU_ATTR_RO(lun);
static ssize_t target_stat_scsi_lu_show_attr_lu_name(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuWwnName */
return snprintf(page, PAGE_SIZE, "%s\n",
(strlen(dev->se_sub_dev->t10_wwn.unit_serial)) ?
dev->se_sub_dev->t10_wwn.unit_serial : "None");
}
DEV_STAT_SCSI_LU_ATTR_RO(lu_name);
static ssize_t target_stat_scsi_lu_show_attr_vend(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
int i;
char str[sizeof(dev->se_sub_dev->t10_wwn.vendor)+1];
if (!dev)
return -ENODEV;
/* scsiLuVendorId */
for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.vendor); i++)
str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.vendor[i]) ?
dev->se_sub_dev->t10_wwn.vendor[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
DEV_STAT_SCSI_LU_ATTR_RO(vend);
static ssize_t target_stat_scsi_lu_show_attr_prod(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
int i;
char str[sizeof(dev->se_sub_dev->t10_wwn.model)+1];
if (!dev)
return -ENODEV;
/* scsiLuProductId */
for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.vendor); i++)
str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.model[i]) ?
dev->se_sub_dev->t10_wwn.model[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
DEV_STAT_SCSI_LU_ATTR_RO(prod);
static ssize_t target_stat_scsi_lu_show_attr_rev(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
int i;
char str[sizeof(dev->se_sub_dev->t10_wwn.revision)+1];
if (!dev)
return -ENODEV;
/* scsiLuRevisionId */
for (i = 0; i < sizeof(dev->se_sub_dev->t10_wwn.revision); i++)
str[i] = ISPRINT(dev->se_sub_dev->t10_wwn.revision[i]) ?
dev->se_sub_dev->t10_wwn.revision[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
DEV_STAT_SCSI_LU_ATTR_RO(rev);
static ssize_t target_stat_scsi_lu_show_attr_dev_type(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuPeripheralType */
return snprintf(page, PAGE_SIZE, "%u\n",
dev->transport->get_device_type(dev));
}
DEV_STAT_SCSI_LU_ATTR_RO(dev_type);
static ssize_t target_stat_scsi_lu_show_attr_status(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuStatus */
return snprintf(page, PAGE_SIZE, "%s\n",
(dev->dev_status == TRANSPORT_DEVICE_ACTIVATED) ?
"available" : "notavailable");
}
DEV_STAT_SCSI_LU_ATTR_RO(status);
static ssize_t target_stat_scsi_lu_show_attr_state_bit(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuState */
return snprintf(page, PAGE_SIZE, "exposed\n");
}
DEV_STAT_SCSI_LU_ATTR_RO(state_bit);
static ssize_t target_stat_scsi_lu_show_attr_num_cmds(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuNumCommands */
return snprintf(page, PAGE_SIZE, "%llu\n",
(unsigned long long)dev->num_cmds);
}
DEV_STAT_SCSI_LU_ATTR_RO(num_cmds);
static ssize_t target_stat_scsi_lu_show_attr_read_mbytes(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuReadMegaBytes */
return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20));
}
DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes);
static ssize_t target_stat_scsi_lu_show_attr_write_mbytes(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuWrittenMegaBytes */
return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20));
}
DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes);
static ssize_t target_stat_scsi_lu_show_attr_resets(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuInResets */
return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
}
DEV_STAT_SCSI_LU_ATTR_RO(resets);
static ssize_t target_stat_scsi_lu_show_attr_full_stat(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* FIXME: scsiLuOutTaskSetFullStatus */
return snprintf(page, PAGE_SIZE, "%u\n", 0);
}
DEV_STAT_SCSI_LU_ATTR_RO(full_stat);
static ssize_t target_stat_scsi_lu_show_attr_hs_num_cmds(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* FIXME: scsiLuHSInCommands */
return snprintf(page, PAGE_SIZE, "%u\n", 0);
}
DEV_STAT_SCSI_LU_ATTR_RO(hs_num_cmds);
static ssize_t target_stat_scsi_lu_show_attr_creation_time(
struct se_dev_stat_grps *sgrps, char *page)
{
struct se_subsystem_dev *se_subdev = container_of(sgrps,
struct se_subsystem_dev, dev_stat_grps);
struct se_device *dev = se_subdev->se_dev_ptr;
if (!dev)
return -ENODEV;
/* scsiLuCreationTime */
return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time -
INITIAL_JIFFIES) * 100 / HZ));
}
DEV_STAT_SCSI_LU_ATTR_RO(creation_time);
CONFIGFS_EATTR_OPS(target_stat_scsi_lu, se_dev_stat_grps, scsi_lu_group);
static struct configfs_attribute *target_stat_scsi_lu_attrs[] = {
&target_stat_scsi_lu_inst.attr,
&target_stat_scsi_lu_dev.attr,
&target_stat_scsi_lu_indx.attr,
&target_stat_scsi_lu_lun.attr,
&target_stat_scsi_lu_lu_name.attr,
&target_stat_scsi_lu_vend.attr,
&target_stat_scsi_lu_prod.attr,
&target_stat_scsi_lu_rev.attr,
&target_stat_scsi_lu_dev_type.attr,
&target_stat_scsi_lu_status.attr,
&target_stat_scsi_lu_state_bit.attr,
&target_stat_scsi_lu_num_cmds.attr,
&target_stat_scsi_lu_read_mbytes.attr,
&target_stat_scsi_lu_write_mbytes.attr,
&target_stat_scsi_lu_resets.attr,
&target_stat_scsi_lu_full_stat.attr,
&target_stat_scsi_lu_hs_num_cmds.attr,
&target_stat_scsi_lu_creation_time.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_lu_attrib_ops = {
.show_attribute = target_stat_scsi_lu_attr_show,
.store_attribute = target_stat_scsi_lu_attr_store,
};
static struct config_item_type target_stat_scsi_lu_cit = {
.ct_item_ops = &target_stat_scsi_lu_attrib_ops,
.ct_attrs = target_stat_scsi_lu_attrs,
.ct_owner = THIS_MODULE,
};
/*
* Called from target_core_configfs.c:target_core_make_subdev() to setup
* the target statistics groups + configfs CITs located in target_core_stat.c
*/
void target_stat_setup_dev_default_groups(struct se_subsystem_dev *se_subdev)
{
struct config_group *dev_stat_grp = &se_subdev->dev_stat_grps.stat_group;
config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_dev_group,
"scsi_dev", &target_stat_scsi_dev_cit);
config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_tgt_dev_group,
"scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit);
config_group_init_type_name(&se_subdev->dev_stat_grps.scsi_lu_group,
"scsi_lu", &target_stat_scsi_lu_cit);
dev_stat_grp->default_groups[0] = &se_subdev->dev_stat_grps.scsi_dev_group;
dev_stat_grp->default_groups[1] = &se_subdev->dev_stat_grps.scsi_tgt_dev_group;
dev_stat_grp->default_groups[2] = &se_subdev->dev_stat_grps.scsi_lu_group;
dev_stat_grp->default_groups[3] = NULL;
}
/*
* SCSI Port Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_port, se_port_stat_grps);
#define DEV_STAT_SCSI_PORT_ATTR(_name, _mode) \
static struct target_stat_scsi_port_attribute \
target_stat_scsi_port_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_port_show_attr_##_name, \
target_stat_scsi_port_store_attr_##_name);
#define DEV_STAT_SCSI_PORT_ATTR_RO(_name) \
static struct target_stat_scsi_port_attribute \
target_stat_scsi_port_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_port_show_attr_##_name);
static ssize_t target_stat_scsi_port_show_attr_inst(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
struct se_device *dev = lun->lun_se_dev;
struct se_hba *hba;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
hba = dev->se_hba;
ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(inst);
static ssize_t target_stat_scsi_port_show_attr_dev(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
struct se_device *dev = lun->lun_se_dev;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(dev);
static ssize_t target_stat_scsi_port_show_attr_indx(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(indx);
static ssize_t target_stat_scsi_port_show_attr_role(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_device *dev = lun->lun_se_dev;
struct se_port *sep;
ssize_t ret;
if (!dev)
return -ENODEV;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(role);
static ssize_t target_stat_scsi_port_show_attr_busy_count(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
/* FIXME: scsiPortBusyStatuses */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_PORT_ATTR_RO(busy_count);
CONFIGFS_EATTR_OPS(target_stat_scsi_port, se_port_stat_grps, scsi_port_group);
static struct configfs_attribute *target_stat_scsi_port_attrs[] = {
&target_stat_scsi_port_inst.attr,
&target_stat_scsi_port_dev.attr,
&target_stat_scsi_port_indx.attr,
&target_stat_scsi_port_role.attr,
&target_stat_scsi_port_busy_count.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_port_attrib_ops = {
.show_attribute = target_stat_scsi_port_attr_show,
.store_attribute = target_stat_scsi_port_attr_store,
};
static struct config_item_type target_stat_scsi_port_cit = {
.ct_item_ops = &target_stat_scsi_port_attrib_ops,
.ct_attrs = target_stat_scsi_port_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Target Port Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_tgt_port, se_port_stat_grps);
#define DEV_STAT_SCSI_TGT_PORT_ATTR(_name, _mode) \
static struct target_stat_scsi_tgt_port_attribute \
target_stat_scsi_tgt_port_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_tgt_port_show_attr_##_name, \
target_stat_scsi_tgt_port_store_attr_##_name);
#define DEV_STAT_SCSI_TGT_PORT_ATTR_RO(_name) \
static struct target_stat_scsi_tgt_port_attribute \
target_stat_scsi_tgt_port_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_tgt_port_show_attr_##_name);
static ssize_t target_stat_scsi_tgt_port_show_attr_inst(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_device *dev = lun->lun_se_dev;
struct se_port *sep;
struct se_hba *hba;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
hba = dev->se_hba;
ret = snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(inst);
static ssize_t target_stat_scsi_tgt_port_show_attr_dev(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_device *dev = lun->lun_se_dev;
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(dev);
static ssize_t target_stat_scsi_tgt_port_show_attr_indx(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%u\n", sep->sep_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(indx);
static ssize_t target_stat_scsi_tgt_port_show_attr_name(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
struct se_portal_group *tpg;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
tpg = sep->sep_tpg;
ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
tpg->se_tpg_tfo->get_fabric_name(), sep->sep_index);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(name);
static ssize_t target_stat_scsi_tgt_port_show_attr_port_index(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
struct se_portal_group *tpg;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
tpg = sep->sep_tpg;
ret = snprintf(page, PAGE_SIZE, "%s%s%d\n",
tpg->se_tpg_tfo->tpg_get_wwn(tpg), "+t+",
tpg->se_tpg_tfo->tpg_get_tag(tpg));
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(port_index);
static ssize_t target_stat_scsi_tgt_port_show_attr_in_cmds(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%llu\n", sep->sep_stats.cmd_pdus);
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(in_cmds);
static ssize_t target_stat_scsi_tgt_port_show_attr_write_mbytes(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);
sep = lun->lun_sep;
if (!sep) {
spin_unlock(&lun->lun_sep_lock);
return -ENODEV;
}
ret = snprintf(page, PAGE_SIZE, "%u\n",
(u32)(sep->sep_stats.rx_data_octets >> 20));
spin_unlock(&lun->lun_sep_lock);
return ret;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(write_mbytes);
static ssize_t target_stat_scsi_tgt_port_show_attr_read_mbytes(
struct se_port_stat_grps *pgrps, char *page)
{
struct se_lun *lun = container_of(pgrps, struct se_lun, port_stat_grps);
struct se_port *sep;
ssize_t ret;
spin_lock(&lun->lun_sep_lock);