linux/drivers/target/target_core_stat.c
Linus Torvalds 5c755fe142 Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target updates from Nicholas Bellinger:
 "It's been a busy development cycle for target-core in a number of
  different areas.

  The fabric API usage for se_node_acl allocation is now within
  target-core code, dropping the external API callers for all fabric
  drivers tree-wide.

  There is a new conversion to RCU hlists for se_node_acl and
  se_portal_group LUN mappings, that turns fast-past LUN lookup into a
  completely lockless code-path.  It also removes the original
  hard-coded limitation of 256 LUNs per fabric endpoint.

  The configfs attributes for backends can now be shared between core
  and driver code, allowing existing drivers to use common code while
  still allowing flexibility for new backend provided attributes.

  The highlights include:

   - Merge sbc_verify_dif_* into common code (sagi)
   - Remove iscsi-target support for obsolete IFMarker/OFMarker
     (Christophe Vu-Brugier)
   - Add bidi support in target/user backend (ilias + vangelis + agover)
   - Move se_node_acl allocation into target-core code (hch)
   - Add crc_t10dif_update common helper (akinobu + mkp)
   - Handle target-core odd SGL mapping for data transfer memory
     (akinobu)
   - Move transport ID handling into target-core (hch)
   - Move task tag into struct se_cmd + support 64-bit tags (bart)
   - Convert se_node_acl->device_list[] to RCU hlist (nab + hch +
     paulmck)
   - Convert se_portal_group->tpg_lun_list[] to RCU hlist (nab + hch +
     paulmck)
   - Simplify target backend driver registration (hch)
   - Consolidate + simplify target backend attribute implementations
     (hch + nab)
   - Subsume se_port + t10_alua_tg_pt_gp_member into se_lun (hch)
   - Drop lun_sep_lock for se_lun->lun_se_dev RCU usage (hch + nab)
   - Drop unnecessary core_tpg_register TFO parameter (nab)
   - Use 64-bit LUNs tree-wide (hannes)
   - Drop left-over TARGET_MAX_LUNS_PER_TRANSPORT limit (hannes)"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (76 commits)
  target: Bump core version to v5.0
  target: remove target_core_configfs.h
  target: remove unused TARGET_CORE_CONFIG_ROOT define
  target: consolidate version defines
  target: implement WRITE_SAME with UNMAP bit using ->execute_unmap
  target: simplify UNMAP handling
  target: replace se_cmd->execute_rw with a protocol_data field
  target/user: Fix inconsistent kmap_atomic/kunmap_atomic
  target: Send UA when changing LUN inventory
  target: Send UA upon LUN RESET tmr completion
  target: Send UA on ALUA target port group change
  target: Convert se_lun->lun_deve_lock to normal spinlock
  target: use 'se_dev_entry' when allocating UAs
  target: Remove 'ua_nacl' pointer from se_ua structure
  target_core_alua: Correct UA handling when switching states
  xen-scsiback: Fix compile warning for 64-bit LUN
  target: Remove TARGET_MAX_LUNS_PER_TRANSPORT
  target: use 64-bit LUNs
  target: Drop duplicate + unused se_dev_check_wce
  target: Drop unnecessary core_tpg_register TFO parameter
  ...
2015-07-04 14:13:43 -07:00

1559 lines
45 KiB
C

/*******************************************************************************
* 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/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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
struct se_hba *hba = dev->se_hba;
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
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)
{
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
return snprintf(page, PAGE_SIZE, "%u\n", dev->export_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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
struct se_hba *hba = dev->se_hba;
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
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)
{
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
if (dev->export_count)
return snprintf(page, PAGE_SIZE, "activated");
else
return snprintf(page, PAGE_SIZE, "deactivated");
}
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
int non_accessible_lus;
if (dev->export_count)
non_accessible_lus = 0;
else
non_accessible_lus = 1;
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
struct se_hba *hba = dev->se_hba;
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
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)
{
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)
{
/* 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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuWwnName */
return snprintf(page, PAGE_SIZE, "%s\n",
(strlen(dev->t10_wwn.unit_serial)) ?
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
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);
}
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
int i;
char str[sizeof(dev->t10_wwn.model)+1];
/* scsiLuProductId */
for (i = 0; i < sizeof(dev->t10_wwn.vendor); 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);
}
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
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);
}
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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* 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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuStatus */
return snprintf(page, PAGE_SIZE, "%s\n",
(dev->export_count) ? "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)
{
/* 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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuNumCommands */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuReadMegaBytes */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuWrittenMegaBytes */
return snprintf(page, PAGE_SIZE, "%lu\n",
atomic_long_read(&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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* scsiLuInResets */
return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&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)
{
/* 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)
{
/* 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_device *dev =
container_of(sgrps, struct se_device, dev_stat_grps);
/* 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_device *dev)
{
struct config_group *dev_stat_grp = &dev->dev_stat_grps.stat_group;
config_group_init_type_name(&dev->dev_stat_grps.scsi_dev_group,
"scsi_dev", &target_stat_scsi_dev_cit);
config_group_init_type_name(&dev->dev_stat_grps.scsi_tgt_dev_group,
"scsi_tgt_dev", &target_stat_scsi_tgt_dev_cit);
config_group_init_type_name(&dev->dev_stat_grps.scsi_lu_group,
"scsi_lu", &target_stat_scsi_lu_cit);
dev_stat_grp->default_groups[0] = &dev->dev_stat_grps.scsi_dev_group;
dev_stat_grp->default_groups[1] = &dev->dev_stat_grps.scsi_tgt_dev_group;
dev_stat_grp->default_groups[2] = &dev->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_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;
}
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_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;
}
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_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;
}
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;
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;
}
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_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;
}
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;
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;
}
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;
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;
}
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_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;
}
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_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;
}
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_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;
}
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_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;
}
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_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;
}
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_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;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(read_mbytes);
static ssize_t target_stat_scsi_tgt_port_show_attr_hs_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_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;
}
DEV_STAT_SCSI_TGT_PORT_ATTR_RO(hs_in_cmds);
CONFIGFS_EATTR_OPS(target_stat_scsi_tgt_port, se_port_stat_grps,
scsi_tgt_port_group);
static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = {
&target_stat_scsi_tgt_port_inst.attr,
&target_stat_scsi_tgt_port_dev.attr,
&target_stat_scsi_tgt_port_indx.attr,
&target_stat_scsi_tgt_port_name.attr,
&target_stat_scsi_tgt_port_port_index.attr,
&target_stat_scsi_tgt_port_in_cmds.attr,
&target_stat_scsi_tgt_port_write_mbytes.attr,
&target_stat_scsi_tgt_port_read_mbytes.attr,
&target_stat_scsi_tgt_port_hs_in_cmds.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_tgt_port_attrib_ops = {
.show_attribute = target_stat_scsi_tgt_port_attr_show,
.store_attribute = target_stat_scsi_tgt_port_attr_store,
};
static struct config_item_type target_stat_scsi_tgt_port_cit = {
.ct_item_ops = &target_stat_scsi_tgt_port_attrib_ops,
.ct_attrs = target_stat_scsi_tgt_port_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Transport Table
o */
CONFIGFS_EATTR_STRUCT(target_stat_scsi_transport, se_port_stat_grps);
#define DEV_STAT_SCSI_TRANSPORT_ATTR(_name, _mode) \
static struct target_stat_scsi_transport_attribute \
target_stat_scsi_transport_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_transport_show_attr_##_name, \
target_stat_scsi_transport_store_attr_##_name);
#define DEV_STAT_SCSI_TRANSPORT_ATTR_RO(_name) \
static struct target_stat_scsi_transport_attribute \
target_stat_scsi_transport_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_transport_show_attr_##_name);
static ssize_t target_stat_scsi_transport_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;
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;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(inst);
static ssize_t target_stat_scsi_transport_show_attr_device(
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;
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;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(device);
static ssize_t target_stat_scsi_transport_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_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;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(indx);
static ssize_t target_stat_scsi_transport_show_attr_dev_name(
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;
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;
}
DEV_STAT_SCSI_TRANSPORT_ATTR_RO(dev_name);
CONFIGFS_EATTR_OPS(target_stat_scsi_transport, se_port_stat_grps,
scsi_transport_group);
static struct configfs_attribute *target_stat_scsi_transport_attrs[] = {
&target_stat_scsi_transport_inst.attr,
&target_stat_scsi_transport_device.attr,
&target_stat_scsi_transport_indx.attr,
&target_stat_scsi_transport_dev_name.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_transport_attrib_ops = {
.show_attribute = target_stat_scsi_transport_attr_show,
.store_attribute = target_stat_scsi_transport_attr_store,
};
static struct config_item_type target_stat_scsi_transport_cit = {
.ct_item_ops = &target_stat_scsi_transport_attrib_ops,
.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)
{
struct config_group *port_stat_grp = &lun->port_stat_grps.stat_group;
config_group_init_type_name(&lun->port_stat_grps.scsi_port_group,
"scsi_port", &target_stat_scsi_port_cit);
config_group_init_type_name(&lun->port_stat_grps.scsi_tgt_port_group,
"scsi_tgt_port", &target_stat_scsi_tgt_port_cit);
config_group_init_type_name(&lun->port_stat_grps.scsi_transport_group,
"scsi_transport", &target_stat_scsi_transport_cit);
port_stat_grp->default_groups[0] = &lun->port_stat_grps.scsi_port_group;
port_stat_grp->default_groups[1] = &lun->port_stat_grps.scsi_tgt_port_group;
port_stat_grp->default_groups[2] = &lun->port_stat_grps.scsi_transport_group;
port_stat_grp->default_groups[3] = NULL;
}
/*
* SCSI Authorized Initiator Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_auth_intr, se_ml_stat_grps);
#define DEV_STAT_SCSI_AUTH_INTR_ATTR(_name, _mode) \
static struct target_stat_scsi_auth_intr_attribute \
target_stat_scsi_auth_intr_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_auth_intr_show_attr_##_name, \
target_stat_scsi_auth_intr_store_attr_##_name);
#define DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(_name) \
static struct target_stat_scsi_auth_intr_attribute \
target_stat_scsi_auth_intr_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_auth_intr_show_attr_##_name);
static ssize_t target_stat_scsi_auth_intr_show_attr_inst(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(inst);
static ssize_t target_stat_scsi_auth_intr_show_attr_dev(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev);
static ssize_t target_stat_scsi_auth_intr_show_attr_port(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(port);
static ssize_t target_stat_scsi_auth_intr_show_attr_indx(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(indx);
static ssize_t target_stat_scsi_auth_intr_show_attr_dev_or_port(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(dev_or_port);
static ssize_t target_stat_scsi_auth_intr_show_attr_intr_name(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(intr_name);
static ssize_t target_stat_scsi_auth_intr_show_attr_map_indx(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(map_indx);
static ssize_t target_stat_scsi_auth_intr_show_attr_att_count(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(att_count);
static ssize_t target_stat_scsi_auth_intr_show_attr_num_cmds(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(num_cmds);
static ssize_t target_stat_scsi_auth_intr_show_attr_read_mbytes(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(read_mbytes);
static ssize_t target_stat_scsi_auth_intr_show_attr_write_mbytes(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(write_mbytes);
static ssize_t target_stat_scsi_auth_intr_show_attr_hs_num_cmds(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(hs_num_cmds);
static ssize_t target_stat_scsi_auth_intr_show_attr_creation_time(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(creation_time);
static ssize_t target_stat_scsi_auth_intr_show_attr_row_status(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_AUTH_INTR_ATTR_RO(row_status);
CONFIGFS_EATTR_OPS(target_stat_scsi_auth_intr, se_ml_stat_grps,
scsi_auth_intr_group);
static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = {
&target_stat_scsi_auth_intr_inst.attr,
&target_stat_scsi_auth_intr_dev.attr,
&target_stat_scsi_auth_intr_port.attr,
&target_stat_scsi_auth_intr_indx.attr,
&target_stat_scsi_auth_intr_dev_or_port.attr,
&target_stat_scsi_auth_intr_intr_name.attr,
&target_stat_scsi_auth_intr_map_indx.attr,
&target_stat_scsi_auth_intr_att_count.attr,
&target_stat_scsi_auth_intr_num_cmds.attr,
&target_stat_scsi_auth_intr_read_mbytes.attr,
&target_stat_scsi_auth_intr_write_mbytes.attr,
&target_stat_scsi_auth_intr_hs_num_cmds.attr,
&target_stat_scsi_auth_intr_creation_time.attr,
&target_stat_scsi_auth_intr_row_status.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_auth_intr_attrib_ops = {
.show_attribute = target_stat_scsi_auth_intr_attr_show,
.store_attribute = target_stat_scsi_auth_intr_attr_store,
};
static struct config_item_type target_stat_scsi_auth_intr_cit = {
.ct_item_ops = &target_stat_scsi_auth_intr_attrib_ops,
.ct_attrs = target_stat_scsi_auth_intr_attrs,
.ct_owner = THIS_MODULE,
};
/*
* SCSI Attached Initiator Port Table
*/
CONFIGFS_EATTR_STRUCT(target_stat_scsi_att_intr_port, se_ml_stat_grps);
#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR(_name, _mode) \
static struct target_stat_scsi_att_intr_port_attribute \
target_stat_scsi_att_intr_port_##_name = \
__CONFIGFS_EATTR(_name, _mode, \
target_stat_scsi_att_intr_port_show_attr_##_name, \
target_stat_scsi_att_intr_port_store_attr_##_name);
#define DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(_name) \
static struct target_stat_scsi_att_intr_port_attribute \
target_stat_scsi_att_intr_port_##_name = \
__CONFIGFS_EATTR_RO(_name, \
target_stat_scsi_att_intr_port_show_attr_##_name);
static ssize_t target_stat_scsi_att_intr_port_show_attr_inst(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(inst);
static ssize_t target_stat_scsi_att_intr_port_show_attr_dev(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(dev);
static ssize_t target_stat_scsi_att_intr_port_show_attr_port(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port);
static ssize_t target_stat_scsi_att_intr_port_show_attr_indx(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(indx);
static ssize_t target_stat_scsi_att_intr_port_show_attr_port_auth_indx(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_auth_indx);
static ssize_t target_stat_scsi_att_intr_port_show_attr_port_ident(
struct se_ml_stat_grps *lgrps, char *page)
{
struct se_lun_acl *lacl = container_of(lgrps,
struct se_lun_acl, ml_stat_grps);
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;
}
DEV_STAT_SCSI_ATTR_INTR_PORT_ATTR_RO(port_ident);
CONFIGFS_EATTR_OPS(target_stat_scsi_att_intr_port, se_ml_stat_grps,
scsi_att_intr_port_group);
static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = {
&target_stat_scsi_att_intr_port_inst.attr,
&target_stat_scsi_att_intr_port_dev.attr,
&target_stat_scsi_att_intr_port_port.attr,
&target_stat_scsi_att_intr_port_indx.attr,
&target_stat_scsi_att_intr_port_port_auth_indx.attr,
&target_stat_scsi_att_intr_port_port_ident.attr,
NULL,
};
static struct configfs_item_operations target_stat_scsi_att_intr_port_attrib_ops = {
.show_attribute = target_stat_scsi_att_intr_port_attr_show,
.store_attribute = target_stat_scsi_att_intr_port_attr_store,
};
static struct config_item_type target_stat_scsi_att_intr_port_cit = {
.ct_item_ops = &target_stat_scsi_att_intr_port_attrib_ops,
.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)
{
struct config_group *ml_stat_grp = &lacl->ml_stat_grps.stat_group;
config_group_init_type_name(&lacl->ml_stat_grps.scsi_auth_intr_group,
"scsi_auth_intr", &target_stat_scsi_auth_intr_cit);
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);
ml_stat_grp->default_groups[0] = &lacl->ml_stat_grps.scsi_auth_intr_group;
ml_stat_grp->default_groups[1] = &lacl->ml_stat_grps.scsi_att_intr_port_group;
ml_stat_grp->default_groups[2] = NULL;
}