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target_core_stat.c
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/*******************************************************************************
* Filename: target_core_stat.c
*
* Modern ConfigFS group context specific statistics based on original
* target_core_mib.c code
*
* (c) Copyright 2006-2013 Datera, Inc.
*
* Nicholas A. Bellinger <nab@linux-iscsi.org>
*
* 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 <linux/utsname.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/configfs.h>
#include <target/target_core_base.h>
#include <target/target_core_backend.h>
#include <target/target_core_fabric.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
*/
static struct se_device *to_stat_dev(struct config_item *item)
{
struct se_dev_stat_grps *sgrps = container_of(to_config_group(item),
struct se_dev_stat_grps, scsi_dev_group);
return container_of(sgrps, struct se_device, dev_stat_grps);
}
static ssize_t target_stat_inst_show(struct config_item *item, char *page)
{
struct se_hba *hba = to_stat_dev(item)->se_hba;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
static ssize_t target_stat_indx_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->dev_index);
}
static ssize_t target_stat_role_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "Target\n");
}
static ssize_t target_stat_ports_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n", to_stat_dev(item)->export_count);
}
CONFIGFS_ATTR_RO(target_stat_, inst);
CONFIGFS_ATTR_RO(target_stat_, indx);
CONFIGFS_ATTR_RO(target_stat_, role);
CONFIGFS_ATTR_RO(target_stat_, ports);
static struct configfs_attribute *target_stat_scsi_dev_attrs[] = {
&target_stat_attr_inst,
&target_stat_attr_indx,
&target_stat_attr_role,
&target_stat_attr_ports,
NULL,
};
static struct config_item_type target_stat_scsi_dev_cit = {
.ct_attrs = target_stat_scsi_dev_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Target Device Table
*/
static struct se_device *to_stat_tgt_dev(struct config_item *item)
{
struct se_dev_stat_grps *sgrps = container_of(to_config_group(item),
struct se_dev_stat_grps, scsi_tgt_dev_group);
return container_of(sgrps, struct se_device, dev_stat_grps);
}
static ssize_t target_stat_tgt_inst_show(struct config_item *item, char *page)
{
struct se_hba *hba = to_stat_tgt_dev(item)->se_hba;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
static ssize_t target_stat_tgt_indx_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n", to_stat_tgt_dev(item)->dev_index);
}
static ssize_t target_stat_tgt_num_lus_show(struct config_item *item,
char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n", LU_COUNT);
}
static ssize_t target_stat_tgt_status_show(struct config_item *item,
char *page)
{
if (to_stat_tgt_dev(item)->export_count)
return snprintf(page, PAGE_SIZE, "activated");
else
return snprintf(page, PAGE_SIZE, "deactivated");
}
static ssize_t target_stat_tgt_non_access_lus_show(struct config_item *item,
char *page)
{
int non_accessible_lus;
if (to_stat_tgt_dev(item)->export_count)
non_accessible_lus = 0;
else
non_accessible_lus = 1;
return snprintf(page, PAGE_SIZE, "%u\n", non_accessible_lus);
}
static ssize_t target_stat_tgt_resets_show(struct config_item *item,
char *page)
{
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&to_stat_tgt_dev(item)->num_resets));
}
static ssize_t target_stat_tgt_aborts_complete_show(struct config_item *item,
char *page)
{
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&to_stat_tgt_dev(item)->aborts_complete));
}
static ssize_t target_stat_tgt_aborts_no_task_show(struct config_item *item,
char *page)
{
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&to_stat_tgt_dev(item)->aborts_no_task));
}
CONFIGFS_ATTR_RO(target_stat_tgt_, inst);
CONFIGFS_ATTR_RO(target_stat_tgt_, indx);
CONFIGFS_ATTR_RO(target_stat_tgt_, num_lus);
CONFIGFS_ATTR_RO(target_stat_tgt_, status);
CONFIGFS_ATTR_RO(target_stat_tgt_, non_access_lus);
CONFIGFS_ATTR_RO(target_stat_tgt_, resets);
CONFIGFS_ATTR_RO(target_stat_tgt_, aborts_complete);
CONFIGFS_ATTR_RO(target_stat_tgt_, aborts_no_task);
static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = {
&target_stat_tgt_attr_inst,
&target_stat_tgt_attr_indx,
&target_stat_tgt_attr_num_lus,
&target_stat_tgt_attr_status,
&target_stat_tgt_attr_non_access_lus,
&target_stat_tgt_attr_resets,
&target_stat_tgt_attr_aborts_complete,
&target_stat_tgt_attr_aborts_no_task,
NULL,
};
static struct config_item_type target_stat_scsi_tgt_dev_cit = {
.ct_attrs = target_stat_scsi_tgt_dev_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Logical Unit Table
*/
static struct se_device *to_stat_lu_dev(struct config_item *item)
{
struct se_dev_stat_grps *sgrps = container_of(to_config_group(item),
struct se_dev_stat_grps, scsi_lu_group);
return container_of(sgrps, struct se_device, dev_stat_grps);
}
static ssize_t target_stat_lu_inst_show(struct config_item *item, char *page)
{
struct se_hba *hba = to_stat_lu_dev(item)->se_hba;
return snprintf(page, PAGE_SIZE, "%u\n", hba->hba_index);
}
static ssize_t target_stat_lu_dev_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n",
to_stat_lu_dev(item)->dev_index);
}
static ssize_t target_stat_lu_indx_show(struct config_item *item, char *page)
{
return snprintf(page, PAGE_SIZE, "%u\n", SCSI_LU_INDEX);
}
static ssize_t target_stat_lu_lun_show(struct config_item *item, char *page)
{
/* FIXME: scsiLuDefaultLun */
return snprintf(page, PAGE_SIZE, "%llu\n", (unsigned long long)0);
}
static ssize_t target_stat_lu_lu_name_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuWwnName */
return snprintf(page, PAGE_SIZE, "%s\n",
(strlen(dev->t10_wwn.unit_serial)) ?
dev->t10_wwn.unit_serial : "None");
}
static ssize_t target_stat_lu_vend_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
int i;
char str[sizeof(dev->t10_wwn.vendor)+1];
/* scsiLuVendorId */
for (i = 0; i < sizeof(dev->t10_wwn.vendor); i++)
str[i] = ISPRINT(dev->t10_wwn.vendor[i]) ?
dev->t10_wwn.vendor[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
int i;
char str[sizeof(dev->t10_wwn.model)+1];
/* scsiLuProductId */
for (i = 0; i < sizeof(dev->t10_wwn.model); i++)
str[i] = ISPRINT(dev->t10_wwn.model[i]) ?
dev->t10_wwn.model[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
int i;
char str[sizeof(dev->t10_wwn.revision)+1];
/* scsiLuRevisionId */
for (i = 0; i < sizeof(dev->t10_wwn.revision); i++)
str[i] = ISPRINT(dev->t10_wwn.revision[i]) ?
dev->t10_wwn.revision[i] : ' ';
str[i] = '\0';
return snprintf(page, PAGE_SIZE, "%s\n", str);
}
static ssize_t target_stat_lu_dev_type_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuPeripheralType */
return snprintf(page, PAGE_SIZE, "%u\n",
dev->transport->get_device_type(dev));
}
static ssize_t target_stat_lu_status_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuStatus */
return snprintf(page, PAGE_SIZE, "%s\n",
(dev->export_count) ? "available" : "notavailable");
}
static ssize_t target_stat_lu_state_bit_show(struct config_item *item,
char *page)
{
/* scsiLuState */
return snprintf(page, PAGE_SIZE, "exposed\n");
}
static ssize_t target_stat_lu_num_cmds_show(struct config_item *item,
char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuNumCommands */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&dev->num_cmds));
}
static ssize_t target_stat_lu_read_mbytes_show(struct config_item *item,
char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuReadMegaBytes */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&dev->read_bytes) >> 20);
}
static ssize_t target_stat_lu_write_mbytes_show(struct config_item *item,
char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuWrittenMegaBytes */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&dev->write_bytes) >> 20);
}
static ssize_t target_stat_lu_resets_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuInResets */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&dev->num_resets));
}
static ssize_t target_stat_lu_full_stat_show(struct config_item *item,
char *page)
{
/* FIXME: scsiLuOutTaskSetFullStatus */
return snprintf(page, PAGE_SIZE, "%u\n", 0);
}
static ssize_t target_stat_lu_hs_num_cmds_show(struct config_item *item,
char *page)
{
/* FIXME: scsiLuHSInCommands */
return snprintf(page, PAGE_SIZE, "%u\n", 0);
}
static ssize_t target_stat_lu_creation_time_show(struct config_item *item,
char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
/* scsiLuCreationTime */
return snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)dev->creation_time -
INITIAL_JIFFIES) * 100 / HZ));
}
CONFIGFS_ATTR_RO(target_stat_lu_, inst);
CONFIGFS_ATTR_RO(target_stat_lu_, dev);
CONFIGFS_ATTR_RO(target_stat_lu_, indx);
CONFIGFS_ATTR_RO(target_stat_lu_, lun);
CONFIGFS_ATTR_RO(target_stat_lu_, lu_name);
CONFIGFS_ATTR_RO(target_stat_lu_, vend);
CONFIGFS_ATTR_RO(target_stat_lu_, prod);
CONFIGFS_ATTR_RO(target_stat_lu_, rev);
CONFIGFS_ATTR_RO(target_stat_lu_, dev_type);
CONFIGFS_ATTR_RO(target_stat_lu_, status);
CONFIGFS_ATTR_RO(target_stat_lu_, state_bit);
CONFIGFS_ATTR_RO(target_stat_lu_, num_cmds);
CONFIGFS_ATTR_RO(target_stat_lu_, read_mbytes);
CONFIGFS_ATTR_RO(target_stat_lu_, write_mbytes);
CONFIGFS_ATTR_RO(target_stat_lu_, resets);
CONFIGFS_ATTR_RO(target_stat_lu_, full_stat);
CONFIGFS_ATTR_RO(target_stat_lu_, hs_num_cmds);
CONFIGFS_ATTR_RO(target_stat_lu_, creation_time);
static struct configfs_attribute *target_stat_scsi_lu_attrs[] = {
&target_stat_lu_attr_inst,
&target_stat_lu_attr_dev,
&target_stat_lu_attr_indx,
&target_stat_lu_attr_lun,
&target_stat_lu_attr_lu_name,
&target_stat_lu_attr_vend,
&target_stat_lu_attr_prod,
&target_stat_lu_attr_rev,
&target_stat_lu_attr_dev_type,
&target_stat_lu_attr_status,
&target_stat_lu_attr_state_bit,
&target_stat_lu_attr_num_cmds,
&target_stat_lu_attr_read_mbytes,
&target_stat_lu_attr_write_mbytes,
&target_stat_lu_attr_resets,
&target_stat_lu_attr_full_stat,
&target_stat_lu_attr_hs_num_cmds,
&target_stat_lu_attr_creation_time,
NULL,
};
static struct config_item_type target_stat_scsi_lu_cit = {
.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_device *dev)
{
config_group_init_type_name(&dev->dev_stat_grps.scsi_dev_group,
"scsi_dev", &target_stat_scsi_dev_cit);
configfs_add_default_group(&dev->dev_stat_grps.scsi_dev_group,
&dev->dev_stat_grps.stat_group);
config_group_init_type_name(&dev->dev_stat_grps.scsi_tgt_dev_group,
"scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit);
configfs_add_default_group(&dev->dev_stat_grps.scsi_tgt_dev_group,
&dev->dev_stat_grps.stat_group);
config_group_init_type_name(&dev->dev_stat_grps.scsi_lu_group,
"scsi_lu", &target_stat_scsi_lu_cit);
configfs_add_default_group(&dev->dev_stat_grps.scsi_lu_group,
&dev->dev_stat_grps.stat_group);
}
/*
* SCSI Port Table
*/
static struct se_lun *to_stat_port(struct config_item *item)
{
struct se_port_stat_grps *pgrps = container_of(to_config_group(item),
struct se_port_stat_grps, scsi_port_group);
return container_of(pgrps, struct se_lun, port_stat_grps);
}
static ssize_t target_stat_port_inst_show(struct config_item *item, char *page)
{
struct se_lun *lun = to_stat_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_port_dev_show(struct config_item *item, char *page)
{
struct se_lun *lun = to_stat_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_port_indx_show(struct config_item *item, char *page)
{
struct se_lun *lun = to_stat_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_port_role_show(struct config_item *item, char *page)
{
struct se_lun *lun = to_stat_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%s%u\n", "Device", dev->dev_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_port_busy_count_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
/* FIXME: scsiPortBusyStatuses */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
rcu_read_unlock();
return ret;
}
CONFIGFS_ATTR_RO(target_stat_port_, inst);
CONFIGFS_ATTR_RO(target_stat_port_, dev);
CONFIGFS_ATTR_RO(target_stat_port_, indx);
CONFIGFS_ATTR_RO(target_stat_port_, role);
CONFIGFS_ATTR_RO(target_stat_port_, busy_count);
static struct configfs_attribute *target_stat_scsi_port_attrs[] = {
&target_stat_port_attr_inst,
&target_stat_port_attr_dev,
&target_stat_port_attr_indx,
&target_stat_port_attr_role,
&target_stat_port_attr_busy_count,
NULL,
};
static struct config_item_type target_stat_scsi_port_cit = {
.ct_attrs = target_stat_scsi_port_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Target Port Table
*/
static struct se_lun *to_stat_tgt_port(struct config_item *item)
{
struct se_port_stat_grps *pgrps = container_of(to_config_group(item),
struct se_port_stat_grps, scsi_tgt_port_group);
return container_of(pgrps, struct se_lun, port_stat_grps);
}
static ssize_t target_stat_tgt_port_inst_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_dev_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->dev_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_indx_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_rtpi);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_name_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_portal_group *tpg = lun->lun_tpg;
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%sPort#%u\n",
tpg->se_tpg_tfo->get_fabric_name(),
lun->lun_rtpi);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_port_index_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_portal_group *tpg = lun->lun_tpg;
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
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));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_in_cmds_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&lun->lun_stats.cmd_pdus));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_write_mbytes_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n",
(u32)(atomic_long_read(&lun->lun_stats.rx_data_octets) >> 20));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_read_mbytes_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n",
(u32)(atomic_long_read(&lun->lun_stats.tx_data_octets) >> 20));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_tgt_port_hs_in_cmds_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_stat_tgt_port(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
/* FIXME: scsiTgtPortHsInCommands */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
}
rcu_read_unlock();
return ret;
}
CONFIGFS_ATTR_RO(target_stat_tgt_port_, inst);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, dev);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, indx);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, name);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, port_index);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, in_cmds);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, write_mbytes);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, read_mbytes);
CONFIGFS_ATTR_RO(target_stat_tgt_port_, hs_in_cmds);
static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = {
&target_stat_tgt_port_attr_inst,
&target_stat_tgt_port_attr_dev,
&target_stat_tgt_port_attr_indx,
&target_stat_tgt_port_attr_name,
&target_stat_tgt_port_attr_port_index,
&target_stat_tgt_port_attr_in_cmds,
&target_stat_tgt_port_attr_write_mbytes,
&target_stat_tgt_port_attr_read_mbytes,
&target_stat_tgt_port_attr_hs_in_cmds,
NULL,
};
static struct config_item_type target_stat_scsi_tgt_port_cit = {
.ct_attrs = target_stat_scsi_tgt_port_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Transport Table
*/
static struct se_lun *to_transport_stat(struct config_item *item)
{
struct se_port_stat_grps *pgrps = container_of(to_config_group(item),
struct se_port_stat_grps, scsi_transport_group);
return container_of(pgrps, struct se_lun, port_stat_grps);
}
static ssize_t target_stat_transport_inst_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", dev->hba_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_device_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
/* scsiTransportType */
ret = snprintf(page, PAGE_SIZE, "scsiTransport%s\n",
tpg->se_tpg_tfo->get_fabric_name());
}
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_indx_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_dev_name_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
struct t10_wwn *wwn;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev) {
wwn = &dev->t10_wwn;
/* scsiTransportDevName */
ret = snprintf(page, PAGE_SIZE, "%s+%s\n",
tpg->se_tpg_tfo->tpg_get_wwn(tpg),
(strlen(wwn->unit_serial)) ? wwn->unit_serial :
wwn->vendor);
}
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_transport_proto_id_show(struct config_item *item,
char *page)
{
struct se_lun *lun = to_transport_stat(item);
struct se_device *dev;
struct se_portal_group *tpg = lun->lun_tpg;
ssize_t ret = -ENODEV;
rcu_read_lock();
dev = rcu_dereference(lun->lun_se_dev);
if (dev)
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->proto_id);
rcu_read_unlock();
return ret;
}
CONFIGFS_ATTR_RO(target_stat_transport_, inst);
CONFIGFS_ATTR_RO(target_stat_transport_, device);
CONFIGFS_ATTR_RO(target_stat_transport_, indx);
CONFIGFS_ATTR_RO(target_stat_transport_, dev_name);
CONFIGFS_ATTR_RO(target_stat_transport_, proto_id);
static struct configfs_attribute *target_stat_scsi_transport_attrs[] = {
&target_stat_transport_attr_inst,
&target_stat_transport_attr_device,
&target_stat_transport_attr_indx,
&target_stat_transport_attr_dev_name,
&target_stat_transport_attr_proto_id,
NULL,
};
static struct config_item_type target_stat_scsi_transport_cit = {
.ct_attrs = target_stat_scsi_transport_attrs,
.ct_owner = THIS_MODULE,
};
/*
* Called from target_core_fabric_configfs.c:target_fabric_make_lun() to setup
* the target port statistics groups + configfs CITs located in target_core_stat.c
*/
void target_stat_setup_port_default_groups(struct se_lun *lun)
{
config_group_init_type_name(&lun->port_stat_grps.scsi_port_group,
"scsi_port", &target_stat_scsi_port_cit);
configfs_add_default_group(&lun->port_stat_grps.scsi_port_group,
&lun->port_stat_grps.stat_group);
config_group_init_type_name(&lun->port_stat_grps.scsi_tgt_port_group,
"scsi_tgt_port", &target_stat_scsi_tgt_port_cit);
configfs_add_default_group(&lun->port_stat_grps.scsi_tgt_port_group,
&lun->port_stat_grps.stat_group);
config_group_init_type_name(&lun->port_stat_grps.scsi_transport_group,
"scsi_transport", &target_stat_scsi_transport_cit);
configfs_add_default_group(&lun->port_stat_grps.scsi_transport_group,
&lun->port_stat_grps.stat_group);
}
/*
* SCSI Authorized Initiator Table
*/
static struct se_lun_acl *auth_to_lacl(struct config_item *item)
{
struct se_ml_stat_grps *lgrps = container_of(to_config_group(item),
struct se_ml_stat_grps, scsi_auth_intr_group);
return container_of(lgrps, struct se_lun_acl, ml_stat_grps);
}
static ssize_t target_stat_auth_inst_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
struct se_portal_group *tpg;
ssize_t ret;
rcu_read_lock();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiInstIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->tpg_get_inst_index(tpg));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_dev_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
struct se_lun *lun;
ssize_t ret;
rcu_read_lock();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
lun = rcu_dereference(deve->se_lun);
/* scsiDeviceIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", lun->lun_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_port_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
struct se_portal_group *tpg;
ssize_t ret;
rcu_read_lock();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiAuthIntrTgtPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", tpg->se_tpg_tfo->tpg_get_tag(tpg));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_indx_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
ssize_t ret;
rcu_read_lock();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_dev_or_port_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
ssize_t ret;
rcu_read_lock();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrDevOrPort */
ret = snprintf(page, PAGE_SIZE, "%u\n", 1);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_intr_name_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = auth_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_dev_entry *deve;
ssize_t ret;
rcu_read_lock();