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linux-next/drivers/target/target_core_stat.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*******************************************************************************
* 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>
*
******************************************************************************/
#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 const 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 const 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);
return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_VENDOR_LEN)
"s\n", dev->t10_wwn.vendor);
}
static ssize_t target_stat_lu_prod_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_MODEL_LEN)
"s\n", dev->t10_wwn.model);
}
static ssize_t target_stat_lu_rev_show(struct config_item *item, char *page)
{
struct se_device *dev = to_stat_lu_dev(item);
return snprintf(page, PAGE_SIZE, "%-" __stringify(INQUIRY_REVISION_LEN)
"s\n", dev->t10_wwn.revision);
}
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 const 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 const 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->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 const 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->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 const 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();
deve = target_nacl_find_deve(nacl, lacl->mapped_lun);
if (!deve) {
rcu_read_unlock();
return -ENODEV;
}
/* scsiAuthIntrName */
ret = snprintf(page, PAGE_SIZE, "%s\n", nacl->initiatorname);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_map_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;
}
/* FIXME: scsiAuthIntrLunMapIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_att_count_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;
}
/* scsiAuthIntrAttachedTimes */
ret = snprintf(page, PAGE_SIZE, "%u\n", deve->attach_count);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_num_cmds_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;
}
/* scsiAuthIntrOutCommands */
ret = snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&deve->total_cmds));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_read_mbytes_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;
}
/* scsiAuthIntrReadMegaBytes */
ret = snprintf(page, PAGE_SIZE, "%u\n",
(u32)(atomic_long_read(&deve->read_bytes) >> 20));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_write_mbytes_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;
}
/* scsiAuthIntrWrittenMegaBytes */
ret = snprintf(page, PAGE_SIZE, "%u\n",
(u32)(atomic_long_read(&deve->write_bytes) >> 20));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_hs_num_cmds_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;
}
/* FIXME: scsiAuthIntrHSOutCommands */
ret = snprintf(page, PAGE_SIZE, "%u\n", 0);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_creation_time_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;
}
/* scsiAuthIntrLastCreation */
ret = snprintf(page, PAGE_SIZE, "%u\n", (u32)(((u32)deve->creation_time -
INITIAL_JIFFIES) * 100 / HZ));
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_auth_row_status_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;
}
/* FIXME: scsiAuthIntrRowStatus */
ret = snprintf(page, PAGE_SIZE, "Ready\n");
rcu_read_unlock();
return ret;
}
CONFIGFS_ATTR_RO(target_stat_auth_, inst);
CONFIGFS_ATTR_RO(target_stat_auth_, dev);
CONFIGFS_ATTR_RO(target_stat_auth_, port);
CONFIGFS_ATTR_RO(target_stat_auth_, indx);
CONFIGFS_ATTR_RO(target_stat_auth_, dev_or_port);
CONFIGFS_ATTR_RO(target_stat_auth_, intr_name);
CONFIGFS_ATTR_RO(target_stat_auth_, map_indx);
CONFIGFS_ATTR_RO(target_stat_auth_, att_count);
CONFIGFS_ATTR_RO(target_stat_auth_, num_cmds);
CONFIGFS_ATTR_RO(target_stat_auth_, read_mbytes);
CONFIGFS_ATTR_RO(target_stat_auth_, write_mbytes);
CONFIGFS_ATTR_RO(target_stat_auth_, hs_num_cmds);
CONFIGFS_ATTR_RO(target_stat_auth_, creation_time);
CONFIGFS_ATTR_RO(target_stat_auth_, row_status);
static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = {
&target_stat_auth_attr_inst,
&target_stat_auth_attr_dev,
&target_stat_auth_attr_port,
&target_stat_auth_attr_indx,
&target_stat_auth_attr_dev_or_port,
&target_stat_auth_attr_intr_name,
&target_stat_auth_attr_map_indx,
&target_stat_auth_attr_att_count,
&target_stat_auth_attr_num_cmds,
&target_stat_auth_attr_read_mbytes,
&target_stat_auth_attr_write_mbytes,
&target_stat_auth_attr_hs_num_cmds,
&target_stat_auth_attr_creation_time,
&target_stat_auth_attr_row_status,
NULL,
};
static const struct config_item_type target_stat_scsi_auth_intr_cit = {
.ct_attrs = target_stat_scsi_auth_intr_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Attached Initiator Port Table
*/
static struct se_lun_acl *iport_to_lacl(struct config_item *item)
{
struct se_ml_stat_grps *lgrps = container_of(to_config_group(item),
struct se_ml_stat_grps, scsi_att_intr_port_group);
return container_of(lgrps, struct se_lun_acl, ml_stat_grps);
}
static ssize_t target_stat_iport_inst_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_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_iport_dev_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_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_iport_port_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_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;
/* scsiPortIndex */
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_iport_indx_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_session *se_sess;
struct se_portal_group *tpg;
ssize_t ret;
spin_lock_irq(&nacl->nacl_sess_lock);
se_sess = nacl->nacl_sess;
if (!se_sess) {
spin_unlock_irq(&nacl->nacl_sess_lock);
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiAttIntrPortIndex */
ret = snprintf(page, PAGE_SIZE, "%u\n",
tpg->se_tpg_tfo->sess_get_index(se_sess));
spin_unlock_irq(&nacl->nacl_sess_lock);
return ret;
}
static ssize_t target_stat_iport_port_auth_indx_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_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;
}
/* scsiAttIntrPortAuthIntrIdx */
ret = snprintf(page, PAGE_SIZE, "%u\n", nacl->acl_index);
rcu_read_unlock();
return ret;
}
static ssize_t target_stat_iport_port_ident_show(struct config_item *item,
char *page)
{
struct se_lun_acl *lacl = iport_to_lacl(item);
struct se_node_acl *nacl = lacl->se_lun_nacl;
struct se_session *se_sess;
struct se_portal_group *tpg;
ssize_t ret;
unsigned char buf[64];
spin_lock_irq(&nacl->nacl_sess_lock);
se_sess = nacl->nacl_sess;
if (!se_sess) {
spin_unlock_irq(&nacl->nacl_sess_lock);
return -ENODEV;
}
tpg = nacl->se_tpg;
/* scsiAttIntrPortName+scsiAttIntrPortIdentifier */
memset(buf, 0, 64);
if (tpg->se_tpg_tfo->sess_get_initiator_sid != NULL)
tpg->se_tpg_tfo->sess_get_initiator_sid(se_sess, buf, 64);
ret = snprintf(page, PAGE_SIZE, "%s+i+%s\n", nacl->initiatorname, buf);
spin_unlock_irq(&nacl->nacl_sess_lock);
return ret;
}
CONFIGFS_ATTR_RO(target_stat_iport_, inst);
CONFIGFS_ATTR_RO(target_stat_iport_, dev);
CONFIGFS_ATTR_RO(target_stat_iport_, port);
CONFIGFS_ATTR_RO(target_stat_iport_, indx);
CONFIGFS_ATTR_RO(target_stat_iport_, port_auth_indx);
CONFIGFS_ATTR_RO(target_stat_iport_, port_ident);
static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = {
&target_stat_iport_attr_inst,
&target_stat_iport_attr_dev,
&target_stat_iport_attr_port,
&target_stat_iport_attr_indx,
&target_stat_iport_attr_port_auth_indx,
&target_stat_iport_attr_port_ident,
NULL,
};
static const struct config_item_type target_stat_scsi_att_intr_port_cit = {
.ct_attrs = target_stat_scsi_ath_intr_port_attrs,
.ct_owner = THIS_MODULE,
};
/*
* Called from target_core_fabric_configfs.c:target_fabric_make_mappedlun() to setup
* the target MappedLUN statistics groups + configfs CITs located in target_core_stat.c
*/
void target_stat_setup_mappedlun_default_groups(struct se_lun_acl *lacl)
{
config_group_init_type_name(&lacl->ml_stat_grps.scsi_auth_intr_group,
"scsi_auth_intr", &target_stat_scsi_auth_intr_cit);
configfs_add_default_group(&lacl->ml_stat_grps.scsi_auth_intr_group,
&lacl->ml_stat_grps.stat_group);
config_group_init_type_name(&lacl->ml_stat_grps.scsi_att_intr_port_group,
"scsi_att_intr_port", &target_stat_scsi_att_intr_port_cit);
configfs_add_default_group(&lacl->ml_stat_grps.scsi_att_intr_port_group,
&lacl->ml_stat_grps.stat_group);
}
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