[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* CDB emulation for non-READ/WRITE commands.
|
|
|
|
*
|
|
|
|
* Copyright (c) 2002, 2003, 2004, 2005 PyX Technologies, Inc.
|
|
|
|
* Copyright (c) 2005, 2006, 2007 SBE, Inc.
|
|
|
|
* Copyright (c) 2007-2010 Rising Tide Systems
|
|
|
|
* Copyright (c) 2008-2010 Linux-iSCSI.org
|
|
|
|
*
|
|
|
|
* Nicholas A. Bellinger <nab@kernel.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.
|
|
|
|
*/
|
|
|
|
|
2011-07-19 13:26:40 +08:00
|
|
|
#include <linux/kernel.h>
|
2011-10-25 14:43:29 +08:00
|
|
|
#include <linux/module.h>
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
#include <asm/unaligned.h>
|
|
|
|
#include <scsi/scsi.h>
|
|
|
|
|
|
|
|
#include <target/target_core_base.h>
|
2011-11-16 22:46:48 +08:00
|
|
|
#include <target/target_core_backend.h>
|
|
|
|
#include <target/target_core_fabric.h>
|
2011-11-15 01:30:30 +08:00
|
|
|
|
|
|
|
#include "target_core_internal.h"
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
#include "target_core_ua.h"
|
|
|
|
|
|
|
|
static void
|
|
|
|
target_fill_alua_data(struct se_port *port, unsigned char *buf)
|
|
|
|
{
|
|
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp;
|
|
|
|
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set SCCS for MAINTENANCE_IN + REPORT_TARGET_PORT_GROUPS.
|
|
|
|
*/
|
|
|
|
buf[5] = 0x80;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set TPGS field for explict and/or implict ALUA access type
|
|
|
|
* and opteration.
|
|
|
|
*
|
|
|
|
* See spc4r17 section 6.4.2 Table 135
|
|
|
|
*/
|
|
|
|
if (!port)
|
|
|
|
return;
|
|
|
|
tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
|
|
|
|
if (!tg_pt_gp_mem)
|
|
|
|
return;
|
|
|
|
|
|
|
|
spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
|
|
|
|
tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
|
|
|
|
if (tg_pt_gp)
|
|
|
|
buf[5] |= tg_pt_gp->tg_pt_gp_alua_access_type;
|
|
|
|
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2012-02-14 08:18:14 +08:00
|
|
|
target_emulate_inquiry_std(struct se_cmd *cmd, char *buf)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 16:55:10 +08:00
|
|
|
struct se_lun *lun = cmd->se_lun;
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-02-14 08:18:15 +08:00
|
|
|
/* Set RMB (removable media) for tape devices */
|
|
|
|
if (dev->transport->get_device_type(dev) == TYPE_TAPE)
|
|
|
|
buf[1] = 0x80;
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[2] = dev->transport->get_device_rev(dev);
|
|
|
|
|
2011-12-07 02:02:09 +08:00
|
|
|
/*
|
|
|
|
* NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2
|
|
|
|
*
|
|
|
|
* SPC4 says:
|
|
|
|
* A RESPONSE DATA FORMAT field set to 2h indicates that the
|
|
|
|
* standard INQUIRY data is in the format defined in this
|
|
|
|
* standard. Response data format values less than 2h are
|
|
|
|
* obsolete. Response data format values greater than 2h are
|
|
|
|
* reserved.
|
|
|
|
*/
|
|
|
|
buf[3] = 2;
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* Enable SCCS and TPGS fields for Emulated ALUA
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->t10_alua.alua_type == SPC3_ALUA_EMULATED)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
target_fill_alua_data(lun->lun_sep, buf);
|
|
|
|
|
2012-02-14 08:18:16 +08:00
|
|
|
buf[7] = 0x2; /* CmdQue=1 */
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-24 09:05:51 +08:00
|
|
|
snprintf(&buf[8], 8, "LIO-ORG");
|
|
|
|
snprintf(&buf[16], 16, "%s", dev->se_sub_dev->t10_wwn.model);
|
|
|
|
snprintf(&buf[32], 4, "%s", dev->se_sub_dev->t10_wwn.revision);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[4] = 31; /* Set additional length to 31 */
|
2011-07-21 03:13:28 +08:00
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* unit serial number */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_80(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
u16 len = 0;
|
|
|
|
|
|
|
|
if (dev->se_sub_dev->su_dev_flags &
|
|
|
|
SDF_EMULATED_VPD_UNIT_SERIAL) {
|
|
|
|
u32 unit_serial_len;
|
|
|
|
|
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-24 09:05:51 +08:00
|
|
|
unit_serial_len = strlen(dev->se_sub_dev->t10_wwn.unit_serial);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
unit_serial_len++; /* For NULL Terminator */
|
|
|
|
|
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-24 09:05:51 +08:00
|
|
|
len += sprintf(&buf[4], "%s",
|
|
|
|
dev->se_sub_dev->t10_wwn.unit_serial);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
len++; /* Extra Byte for NULL Terminator */
|
|
|
|
buf[3] = len;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
static void
|
2011-09-19 16:11:21 +08:00
|
|
|
target_parse_naa_6h_vendor_specific(struct se_device *dev, unsigned char *buf)
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
{
|
|
|
|
unsigned char *p = &dev->se_sub_dev->t10_wwn.unit_serial[0];
|
2011-09-19 16:11:21 +08:00
|
|
|
int cnt;
|
|
|
|
bool next = true;
|
|
|
|
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
/*
|
|
|
|
* Generate up to 36 bits of VENDOR SPECIFIC IDENTIFIER starting on
|
|
|
|
* byte 3 bit 3-0 for NAA IEEE Registered Extended DESIGNATOR field
|
|
|
|
* format, followed by 64 bits of VENDOR SPECIFIC IDENTIFIER EXTENSION
|
|
|
|
* to complete the payload. These are based from VPD=0x80 PRODUCT SERIAL
|
|
|
|
* NUMBER set via vpd_unit_serial in target_core_configfs.c to ensure
|
|
|
|
* per device uniqeness.
|
|
|
|
*/
|
2011-09-19 16:11:21 +08:00
|
|
|
for (cnt = 0; *p && cnt < 13; p++) {
|
|
|
|
int val = hex_to_bin(*p);
|
|
|
|
|
|
|
|
if (val < 0)
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
continue;
|
2011-09-19 16:11:21 +08:00
|
|
|
|
|
|
|
if (next) {
|
|
|
|
next = false;
|
|
|
|
buf[cnt++] |= val;
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
} else {
|
2011-09-19 16:11:21 +08:00
|
|
|
next = true;
|
|
|
|
buf[cnt] = val << 4;
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* Device identification VPD, for a complete list of
|
|
|
|
* DESIGNATOR TYPEs see spc4r17 Table 459.
|
|
|
|
*/
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_83(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-07-19 16:55:10 +08:00
|
|
|
struct se_lun *lun = cmd->se_lun;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
struct se_port *port = NULL;
|
|
|
|
struct se_portal_group *tpg = NULL;
|
|
|
|
struct t10_alua_lu_gp_member *lu_gp_mem;
|
|
|
|
struct t10_alua_tg_pt_gp *tg_pt_gp;
|
|
|
|
struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem;
|
2011-07-19 16:55:10 +08:00
|
|
|
unsigned char *prod = &dev->se_sub_dev->t10_wwn.model[0];
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
u32 prod_len;
|
|
|
|
u32 unit_serial_len, off = 0;
|
|
|
|
u16 len = 0, id_len;
|
|
|
|
|
|
|
|
off = 4;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* NAA IEEE Registered Extended Assigned designator format, see
|
|
|
|
* spc4r17 section 7.7.3.6.5
|
|
|
|
*
|
|
|
|
* We depend upon a target_core_mod/ConfigFS provided
|
|
|
|
* /sys/kernel/config/target/core/$HBA/$DEV/wwn/vpd_unit_serial
|
|
|
|
* value in order to return the NAA id.
|
|
|
|
*/
|
|
|
|
if (!(dev->se_sub_dev->su_dev_flags & SDF_EMULATED_VPD_UNIT_SERIAL))
|
|
|
|
goto check_t10_vend_desc;
|
|
|
|
|
|
|
|
/* CODE SET == Binary */
|
|
|
|
buf[off++] = 0x1;
|
|
|
|
|
2011-07-19 13:17:43 +08:00
|
|
|
/* Set ASSOCIATION == addressed logical unit: 0)b */
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off] = 0x00;
|
|
|
|
|
|
|
|
/* Identifier/Designator type == NAA identifier */
|
2011-07-19 13:17:43 +08:00
|
|
|
buf[off++] |= 0x3;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
off++;
|
|
|
|
|
|
|
|
/* Identifier/Designator length */
|
|
|
|
buf[off++] = 0x10;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Start NAA IEEE Registered Extended Identifier/Designator
|
|
|
|
*/
|
|
|
|
buf[off++] = (0x6 << 4);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Use OpenFabrics IEEE Company ID: 00 14 05
|
|
|
|
*/
|
|
|
|
buf[off++] = 0x01;
|
|
|
|
buf[off++] = 0x40;
|
|
|
|
buf[off] = (0x5 << 4);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Return ConfigFS Unit Serial Number information for
|
|
|
|
* VENDOR_SPECIFIC_IDENTIFIER and
|
|
|
|
* VENDOR_SPECIFIC_IDENTIFIER_EXTENTION
|
|
|
|
*/
|
target: Skip non hex characters for VPD=0x83 NAA IEEE Registered Extended
This patch adds target_parse_naa_6h_vendor_specific() to address a bug where the
conversion of PRODUCT SERIAL NUMBER to use hex2bin() in target_emulate_evpd_83()
was not doing proper isxdigit() checking. This conversion of the vpd_unit_serial
configifs attribute is done while generating a VPD=0x83 NAA IEEE Registered
Extended DESIGNATOR format's 100 bits of unique VENDOR SPECIFIC IDENTIFIER +
VENDOR SPECIFIC IDENTIFIER EXTENSION area.
This patch allows vpd_unit_serial (VPD=0x80) and the T10 Vendor ID DESIGNATOR
format (VPD=0x83) to continue to use free-form variable length ASCII values,
and now skips any non hex characters for fixed length NAA IEEE Registered Extended
DESIGNATOR format (VPD=0x83) requring the binary conversion.
This was originally reported by Martin after the v3.1-rc1 change to use hex2bin()
in commit 11650b859681e03fdbf26277fcfc5f1f62186703 where the use of non hex
characters in vpd_unit_serial generated different values than the original
v3.0 internal hex -> binary code. This v3.1 change caused a problem with
filesystems who write a NAA DESIGNATOR onto it's ondisk metadata, and this patch
will (again) change existing values to ensure that non hex characters are not
included in the fixed length NAA DESIGNATOR.
Note this patch still expects vpd_unit_serial to be set via existing userspace
methods of uuid generation, and does not do strict formatting via configfs input.
The original bug report and thread can be found here:
NAA breakage
http://www.spinics.net/lists/target-devel/msg00477.html
The v3.1-rc1 formatting of VPD=0x83 w/o this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ebf
Vendor Specific Identifier Extension: 0x3092f498ffa820f9
[0x6001405ffde35ebf3092f498ffa820f9]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
The v3.1-final formatting of VPD=0x83 w/ this patch:
VPD INQUIRY: Device Identification page
Designation descriptor number 1, descriptor length: 20
designator_type: NAA, code_set: Binary
associated with the addressed logical unit
NAA 6, IEEE Company_id: 0x1405
Vendor Specific Identifier: 0xffde35ec3
Vendor Specific Identifier Extension: 0x924980a82091763
[0x6001405ffde35ec30924980a82091763]
Designation descriptor number 2, descriptor length: 56
designator_type: T10 vendor identification, code_set: ASCII
associated with the addressed logical unit
vendor id: LIO-ORG
vendor specific: IBLOCK:ffde35ec-3092-4980-a820-917636ca54f1
(v2: Fix parsing code to dereference + check for string terminator instead
of null pointer to ensure a zeroed payload for vpd_unit_serial less
than 100 bits of NAA DESIGNATOR VENDOR SPECIFIC area. Also, remove
the unnecessary bitwise assignment)
Reported-by: Martin Svec <martin.svec@zoner.cz>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-09-16 16:31:28 +08:00
|
|
|
target_parse_naa_6h_vendor_specific(dev, &buf[off]);
|
2011-07-19 13:26:40 +08:00
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
len = 20;
|
|
|
|
off = (len + 4);
|
|
|
|
|
|
|
|
check_t10_vend_desc:
|
|
|
|
/*
|
|
|
|
* T10 Vendor Identifier Page, see spc4r17 section 7.7.3.4
|
|
|
|
*/
|
|
|
|
id_len = 8; /* For Vendor field */
|
|
|
|
prod_len = 4; /* For VPD Header */
|
|
|
|
prod_len += 8; /* For Vendor field */
|
|
|
|
prod_len += strlen(prod);
|
|
|
|
prod_len++; /* For : */
|
|
|
|
|
|
|
|
if (dev->se_sub_dev->su_dev_flags &
|
|
|
|
SDF_EMULATED_VPD_UNIT_SERIAL) {
|
|
|
|
unit_serial_len =
|
2011-07-19 16:55:10 +08:00
|
|
|
strlen(&dev->se_sub_dev->t10_wwn.unit_serial[0]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
unit_serial_len++; /* For NULL Terminator */
|
|
|
|
|
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-24 09:05:51 +08:00
|
|
|
id_len += sprintf(&buf[off+12], "%s:%s", prod,
|
2011-07-19 16:55:10 +08:00
|
|
|
&dev->se_sub_dev->t10_wwn.unit_serial[0]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
buf[off] = 0x2; /* ASCII */
|
|
|
|
buf[off+1] = 0x1; /* T10 Vendor ID */
|
|
|
|
buf[off+2] = 0x0;
|
target: remove useless casts
A reader should spend an extra moment whenever noticing a cast,
because either something special is going on that deserves extra
attention or, as is all too often the case, the code is wrong.
These casts, afaics, have all been useless. They cast a foo* to a
foo*, cast a void* to the assigned type, cast a foo* to void*, before
assigning it to a void* variable, etc.
In a few cases I also removed an additional &...[0], which is equally
useless.
Lastly I added three FIXMEs where, to the best of my judgement, the
code appears to have a bug. It would be good if someone could check
these.
Signed-off-by: Joern Engel <joern@logfs.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2011-11-24 09:05:51 +08:00
|
|
|
memcpy(&buf[off+4], "LIO-ORG", 8);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/* Extra Byte for NULL Terminator */
|
|
|
|
id_len++;
|
|
|
|
/* Identifier Length */
|
|
|
|
buf[off+3] = id_len;
|
|
|
|
/* Header size for Designation descriptor */
|
|
|
|
len += (id_len + 4);
|
|
|
|
off += (id_len + 4);
|
|
|
|
/*
|
|
|
|
* struct se_port is only set for INQUIRY VPD=1 through $FABRIC_MOD
|
|
|
|
*/
|
|
|
|
port = lun->lun_sep;
|
|
|
|
if (port) {
|
|
|
|
struct t10_alua_lu_gp *lu_gp;
|
|
|
|
u32 padding, scsi_name_len;
|
|
|
|
u16 lu_gp_id = 0;
|
|
|
|
u16 tg_pt_gp_id = 0;
|
|
|
|
u16 tpgt;
|
|
|
|
|
|
|
|
tpg = port->sep_tpg;
|
|
|
|
/*
|
|
|
|
* Relative target port identifer, see spc4r17
|
|
|
|
* section 7.7.3.7
|
|
|
|
*
|
|
|
|
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
|
|
|
|
* section 7.5.1 Table 362
|
|
|
|
*/
|
|
|
|
buf[off] =
|
2011-07-19 16:55:10 +08:00
|
|
|
(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off++] |= 0x1; /* CODE SET == Binary */
|
|
|
|
buf[off] = 0x80; /* Set PIV=1 */
|
2011-07-19 13:17:43 +08:00
|
|
|
/* Set ASSOCIATION == target port: 01b */
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off] |= 0x10;
|
|
|
|
/* DESIGNATOR TYPE == Relative target port identifer */
|
|
|
|
buf[off++] |= 0x4;
|
|
|
|
off++; /* Skip over Reserved */
|
|
|
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
|
|
|
/* Skip over Obsolete field in RTPI payload
|
|
|
|
* in Table 472 */
|
|
|
|
off += 2;
|
|
|
|
buf[off++] = ((port->sep_rtpi >> 8) & 0xff);
|
|
|
|
buf[off++] = (port->sep_rtpi & 0xff);
|
|
|
|
len += 8; /* Header size + Designation descriptor */
|
|
|
|
/*
|
|
|
|
* Target port group identifier, see spc4r17
|
|
|
|
* section 7.7.3.8
|
|
|
|
*
|
|
|
|
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
|
|
|
|
* section 7.5.1 Table 362
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->t10_alua.alua_type !=
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
SPC3_ALUA_EMULATED)
|
|
|
|
goto check_scsi_name;
|
|
|
|
|
|
|
|
tg_pt_gp_mem = port->sep_alua_tg_pt_gp_mem;
|
|
|
|
if (!tg_pt_gp_mem)
|
|
|
|
goto check_lu_gp;
|
|
|
|
|
|
|
|
spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
|
|
|
|
tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
|
2011-06-09 01:36:43 +08:00
|
|
|
if (!tg_pt_gp) {
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
|
|
|
|
goto check_lu_gp;
|
|
|
|
}
|
|
|
|
tg_pt_gp_id = tg_pt_gp->tg_pt_gp_id;
|
|
|
|
spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
|
|
|
|
|
|
|
|
buf[off] =
|
2011-07-19 16:55:10 +08:00
|
|
|
(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off++] |= 0x1; /* CODE SET == Binary */
|
|
|
|
buf[off] = 0x80; /* Set PIV=1 */
|
2011-07-19 13:17:43 +08:00
|
|
|
/* Set ASSOCIATION == target port: 01b */
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off] |= 0x10;
|
|
|
|
/* DESIGNATOR TYPE == Target port group identifier */
|
|
|
|
buf[off++] |= 0x5;
|
|
|
|
off++; /* Skip over Reserved */
|
|
|
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
|
|
|
off += 2; /* Skip over Reserved Field */
|
|
|
|
buf[off++] = ((tg_pt_gp_id >> 8) & 0xff);
|
|
|
|
buf[off++] = (tg_pt_gp_id & 0xff);
|
|
|
|
len += 8; /* Header size + Designation descriptor */
|
|
|
|
/*
|
|
|
|
* Logical Unit Group identifier, see spc4r17
|
|
|
|
* section 7.7.3.8
|
|
|
|
*/
|
|
|
|
check_lu_gp:
|
|
|
|
lu_gp_mem = dev->dev_alua_lu_gp_mem;
|
2011-06-09 01:36:43 +08:00
|
|
|
if (!lu_gp_mem)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
goto check_scsi_name;
|
|
|
|
|
|
|
|
spin_lock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
lu_gp = lu_gp_mem->lu_gp;
|
2011-06-09 01:36:43 +08:00
|
|
|
if (!lu_gp) {
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
goto check_scsi_name;
|
|
|
|
}
|
|
|
|
lu_gp_id = lu_gp->lu_gp_id;
|
|
|
|
spin_unlock(&lu_gp_mem->lu_gp_mem_lock);
|
|
|
|
|
|
|
|
buf[off++] |= 0x1; /* CODE SET == Binary */
|
|
|
|
/* DESIGNATOR TYPE == Logical Unit Group identifier */
|
|
|
|
buf[off++] |= 0x6;
|
|
|
|
off++; /* Skip over Reserved */
|
|
|
|
buf[off++] = 4; /* DESIGNATOR LENGTH */
|
|
|
|
off += 2; /* Skip over Reserved Field */
|
|
|
|
buf[off++] = ((lu_gp_id >> 8) & 0xff);
|
|
|
|
buf[off++] = (lu_gp_id & 0xff);
|
|
|
|
len += 8; /* Header size + Designation descriptor */
|
|
|
|
/*
|
|
|
|
* SCSI name string designator, see spc4r17
|
|
|
|
* section 7.7.3.11
|
|
|
|
*
|
|
|
|
* Get the PROTOCOL IDENTIFIER as defined by spc4r17
|
|
|
|
* section 7.5.1 Table 362
|
|
|
|
*/
|
|
|
|
check_scsi_name:
|
2011-07-19 16:55:10 +08:00
|
|
|
scsi_name_len = strlen(tpg->se_tpg_tfo->tpg_get_wwn(tpg));
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/* UTF-8 ",t,0x<16-bit TPGT>" + NULL Terminator */
|
|
|
|
scsi_name_len += 10;
|
|
|
|
/* Check for 4-byte padding */
|
|
|
|
padding = ((-scsi_name_len) & 3);
|
|
|
|
if (padding != 0)
|
|
|
|
scsi_name_len += padding;
|
|
|
|
/* Header size + Designation descriptor */
|
|
|
|
scsi_name_len += 4;
|
|
|
|
|
|
|
|
buf[off] =
|
2011-07-19 16:55:10 +08:00
|
|
|
(tpg->se_tpg_tfo->get_fabric_proto_ident(tpg) << 4);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off++] |= 0x3; /* CODE SET == UTF-8 */
|
|
|
|
buf[off] = 0x80; /* Set PIV=1 */
|
2011-07-19 13:17:43 +08:00
|
|
|
/* Set ASSOCIATION == target port: 01b */
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[off] |= 0x10;
|
|
|
|
/* DESIGNATOR TYPE == SCSI name string */
|
|
|
|
buf[off++] |= 0x8;
|
|
|
|
off += 2; /* Skip over Reserved and length */
|
|
|
|
/*
|
|
|
|
* SCSI name string identifer containing, $FABRIC_MOD
|
|
|
|
* dependent information. For LIO-Target and iSCSI
|
|
|
|
* Target Port, this means "<iSCSI name>,t,0x<TPGT> in
|
|
|
|
* UTF-8 encoding.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
tpgt = tpg->se_tpg_tfo->tpg_get_tag(tpg);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
scsi_name_len = sprintf(&buf[off], "%s,t,0x%04x",
|
2011-07-19 16:55:10 +08:00
|
|
|
tpg->se_tpg_tfo->tpg_get_wwn(tpg), tpgt);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
scsi_name_len += 1 /* Include NULL terminator */;
|
|
|
|
/*
|
|
|
|
* The null-terminated, null-padded (see 4.4.2) SCSI
|
|
|
|
* NAME STRING field contains a UTF-8 format string.
|
|
|
|
* The number of bytes in the SCSI NAME STRING field
|
|
|
|
* (i.e., the value in the DESIGNATOR LENGTH field)
|
|
|
|
* shall be no larger than 256 and shall be a multiple
|
|
|
|
* of four.
|
|
|
|
*/
|
|
|
|
if (padding)
|
|
|
|
scsi_name_len += padding;
|
|
|
|
|
|
|
|
buf[off-1] = scsi_name_len;
|
|
|
|
off += scsi_name_len;
|
|
|
|
/* Header size + Designation descriptor */
|
|
|
|
len += (scsi_name_len + 4);
|
|
|
|
}
|
|
|
|
buf[2] = ((len >> 8) & 0xff);
|
|
|
|
buf[3] = (len & 0xff); /* Page Length for VPD 0x83 */
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Extended INQUIRY Data VPD Page */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
2011-11-23 05:51:34 +08:00
|
|
|
buf[3] = 0x3c;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/* Set HEADSUP, ORDSUP, SIMPSUP */
|
|
|
|
buf[5] = 0x07;
|
|
|
|
|
|
|
|
/* If WriteCache emulation is enabled, set V_SUP */
|
2011-07-19 18:26:37 +08:00
|
|
|
if (cmd->se_dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[6] = 0x01;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Block Limits VPD page */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2012-03-27 05:53:17 +08:00
|
|
|
u32 max_sectors;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
int have_tp = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Following sbc3r22 section 6.5.3 Block Limits VPD page, when
|
|
|
|
* emulate_tpu=1 or emulate_tpws=1 we will be expect a
|
|
|
|
* different page length for Thin Provisioning.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
have_tp = 1;
|
|
|
|
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
buf[3] = have_tp ? 0x3c : 0x10;
|
|
|
|
|
2011-06-09 01:36:43 +08:00
|
|
|
/* Set WSNZ to 1 */
|
|
|
|
buf[4] = 0x01;
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* Set OPTIMAL TRANSFER LENGTH GRANULARITY
|
|
|
|
*/
|
|
|
|
put_unaligned_be16(1, &buf[6]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM TRANSFER LENGTH
|
|
|
|
*/
|
2012-03-27 05:53:17 +08:00
|
|
|
max_sectors = min(dev->se_sub_dev->se_dev_attrib.fabric_max_sectors,
|
2012-05-10 03:42:09 +08:00
|
|
|
dev->se_sub_dev->se_dev_attrib.hw_max_sectors);
|
2012-03-27 05:53:17 +08:00
|
|
|
put_unaligned_be32(max_sectors, &buf[8]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set OPTIMAL TRANSFER LENGTH
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.optimal_sectors, &buf[12]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
/*
|
2012-02-14 08:18:14 +08:00
|
|
|
* Exit now if we don't support TP.
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
*/
|
2012-02-14 08:18:14 +08:00
|
|
|
if (!have_tp)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM UNMAP LBA COUNT
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_lba_count, &buf[20]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Set MAXIMUM UNMAP BLOCK DESCRIPTOR COUNT
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.max_unmap_block_desc_count,
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
&buf[24]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set OPTIMAL UNMAP GRANULARITY
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity, &buf[28]);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* UNMAP GRANULARITY ALIGNMENT
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
put_unaligned_be32(dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment,
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
&buf[32]);
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.unmap_granularity_alignment != 0)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[32] |= 0x80; /* Set the UGAVALID bit */
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-07-06 04:34:52 +08:00
|
|
|
/* Block Device Characteristics VPD page */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_b1(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
|
|
|
struct se_device *dev = cmd->se_dev;
|
|
|
|
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
buf[3] = 0x3c;
|
2012-02-14 08:18:14 +08:00
|
|
|
buf[5] = dev->se_sub_dev->se_dev_attrib.is_nonrot ? 1 : 0;
|
2011-07-06 04:34:52 +08:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/* Thin Provisioning VPD */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_b2(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
/*
|
|
|
|
* From sbc3r22 section 6.5.4 Thin Provisioning VPD page:
|
|
|
|
*
|
|
|
|
* The PAGE LENGTH field is defined in SPC-4. If the DP bit is set to
|
|
|
|
* zero, then the page length shall be set to 0004h. If the DP bit
|
|
|
|
* is set to one, then the page length shall be set to the value
|
|
|
|
* defined in table 162.
|
|
|
|
*/
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Set Hardcoded length mentioned above for DP=0
|
|
|
|
*/
|
|
|
|
put_unaligned_be16(0x0004, &buf[2]);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The THRESHOLD EXPONENT field indicates the threshold set size in
|
|
|
|
* LBAs as a power of 2 (i.e., the threshold set size is equal to
|
|
|
|
* 2(threshold exponent)).
|
|
|
|
*
|
|
|
|
* Note that this is currently set to 0x00 as mkp says it will be
|
|
|
|
* changing again. We can enable this once it has settled in T10
|
|
|
|
* and is actually used by Linux/SCSI ML code.
|
|
|
|
*/
|
|
|
|
buf[4] = 0x00;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* A TPU bit set to one indicates that the device server supports
|
|
|
|
* the UNMAP command (see 5.25). A TPU bit set to zero indicates
|
|
|
|
* that the device server does not support the UNMAP command.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.emulate_tpu != 0)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[5] = 0x80;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* A TPWS bit set to one indicates that the device server supports
|
|
|
|
* the use of the WRITE SAME (16) command (see 5.42) to unmap LBAs.
|
|
|
|
* A TPWS bit set to zero indicates that the device server does not
|
|
|
|
* support the use of the WRITE SAME (16) command to unmap LBAs.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.emulate_tpws != 0)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[5] |= 0x40;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2011-07-06 04:34:51 +08:00
|
|
|
static int
|
|
|
|
target_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf);
|
|
|
|
|
|
|
|
static struct {
|
|
|
|
uint8_t page;
|
|
|
|
int (*emulate)(struct se_cmd *, unsigned char *);
|
|
|
|
} evpd_handlers[] = {
|
|
|
|
{ .page = 0x00, .emulate = target_emulate_evpd_00 },
|
|
|
|
{ .page = 0x80, .emulate = target_emulate_evpd_80 },
|
|
|
|
{ .page = 0x83, .emulate = target_emulate_evpd_83 },
|
|
|
|
{ .page = 0x86, .emulate = target_emulate_evpd_86 },
|
|
|
|
{ .page = 0xb0, .emulate = target_emulate_evpd_b0 },
|
2011-07-06 04:34:52 +08:00
|
|
|
{ .page = 0xb1, .emulate = target_emulate_evpd_b1 },
|
2011-07-06 04:34:51 +08:00
|
|
|
{ .page = 0xb2, .emulate = target_emulate_evpd_b2 },
|
|
|
|
};
|
|
|
|
|
|
|
|
/* supported vital product data pages */
|
|
|
|
static int
|
|
|
|
target_emulate_evpd_00(struct se_cmd *cmd, unsigned char *buf)
|
|
|
|
{
|
|
|
|
int p;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Only report the INQUIRY EVPD=1 pages after a valid NAA
|
|
|
|
* Registered Extended LUN WWN has been set via ConfigFS
|
|
|
|
* during device creation/restart.
|
|
|
|
*/
|
|
|
|
if (cmd->se_dev->se_sub_dev->su_dev_flags &
|
|
|
|
SDF_EMULATED_VPD_UNIT_SERIAL) {
|
|
|
|
buf[3] = ARRAY_SIZE(evpd_handlers);
|
2012-02-14 08:18:14 +08:00
|
|
|
for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p)
|
2011-07-06 04:34:51 +08:00
|
|
|
buf[p + 4] = evpd_handlers[p].page;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_inquiry(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2012-02-14 08:18:15 +08:00
|
|
|
struct se_portal_group *tpg = cmd->se_lun->lun_sep->sep_tpg;
|
2012-02-14 08:18:14 +08:00
|
|
|
unsigned char *buf, *map_buf;
|
2011-05-03 08:12:10 +08:00
|
|
|
unsigned char *cdb = cmd->t_task_cdb;
|
2011-07-21 03:13:28 +08:00
|
|
|
int p, ret;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2012-02-14 08:18:14 +08:00
|
|
|
map_buf = transport_kmap_data_sg(cmd);
|
|
|
|
/*
|
|
|
|
* If SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC is not set, then we
|
|
|
|
* know we actually allocated a full page. Otherwise, if the
|
|
|
|
* data buffer is too small, allocate a temporary buffer so we
|
|
|
|
* don't have to worry about overruns in all our INQUIRY
|
|
|
|
* emulation handling.
|
|
|
|
*/
|
|
|
|
if (cmd->data_length < SE_INQUIRY_BUF &&
|
|
|
|
(cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC)) {
|
|
|
|
buf = kzalloc(SE_INQUIRY_BUF, GFP_KERNEL);
|
|
|
|
if (!buf) {
|
|
|
|
transport_kunmap_data_sg(cmd);
|
|
|
|
cmd->scsi_sense_reason = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
buf = map_buf;
|
|
|
|
}
|
|
|
|
|
2012-02-14 08:18:15 +08:00
|
|
|
if (dev == tpg->tpg_virt_lun0.lun_se_dev)
|
|
|
|
buf[0] = 0x3f; /* Not connected */
|
|
|
|
else
|
|
|
|
buf[0] = dev->transport->get_device_type(dev);
|
|
|
|
|
2011-11-04 05:50:44 +08:00
|
|
|
if (!(cdb[1] & 0x1)) {
|
2012-01-18 10:00:57 +08:00
|
|
|
if (cdb[2]) {
|
|
|
|
pr_err("INQUIRY with EVPD==0 but PAGE CODE=%02x\n",
|
|
|
|
cdb[2]);
|
|
|
|
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
|
2012-02-14 08:18:14 +08:00
|
|
|
ret = -EINVAL;
|
|
|
|
goto out;
|
2012-01-18 10:00:57 +08:00
|
|
|
}
|
|
|
|
|
2012-02-14 08:18:14 +08:00
|
|
|
ret = target_emulate_inquiry_std(cmd, buf);
|
2011-11-04 05:50:44 +08:00
|
|
|
goto out;
|
|
|
|
}
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2011-11-04 05:50:44 +08:00
|
|
|
for (p = 0; p < ARRAY_SIZE(evpd_handlers); ++p) {
|
2011-07-06 04:34:51 +08:00
|
|
|
if (cdb[2] == evpd_handlers[p].page) {
|
|
|
|
buf[1] = cdb[2];
|
2011-07-21 03:13:28 +08:00
|
|
|
ret = evpd_handlers[p].emulate(cmd, buf);
|
2012-02-14 08:18:14 +08:00
|
|
|
goto out;
|
2011-07-06 04:34:51 +08:00
|
|
|
}
|
2011-11-04 05:50:44 +08:00
|
|
|
}
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_err("Unknown VPD Code: 0x%02x\n", cdb[2]);
|
2012-01-18 10:00:56 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
|
2011-11-04 05:50:44 +08:00
|
|
|
ret = -EINVAL;
|
|
|
|
|
|
|
|
out:
|
2012-02-14 08:18:14 +08:00
|
|
|
if (buf != map_buf) {
|
|
|
|
memcpy(map_buf, buf, cmd->data_length);
|
|
|
|
kfree(buf);
|
|
|
|
}
|
|
|
|
transport_kunmap_data_sg(cmd);
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
if (!ret)
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
2011-11-04 05:50:44 +08:00
|
|
|
return ret;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_readcapacity(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-07-21 03:13:28 +08:00
|
|
|
unsigned char *buf;
|
2011-03-03 07:52:51 +08:00
|
|
|
unsigned long long blocks_long = dev->transport->get_blocks(dev);
|
|
|
|
u32 blocks;
|
|
|
|
|
|
|
|
if (blocks_long >= 0x00000000ffffffff)
|
|
|
|
blocks = 0xffffffff;
|
|
|
|
else
|
|
|
|
blocks = (u32)blocks_long;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
buf = transport_kmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[0] = (blocks >> 24) & 0xff;
|
|
|
|
buf[1] = (blocks >> 16) & 0xff;
|
|
|
|
buf[2] = (blocks >> 8) & 0xff;
|
|
|
|
buf[3] = blocks & 0xff;
|
2011-07-19 16:55:10 +08:00
|
|
|
buf[4] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff;
|
|
|
|
buf[5] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff;
|
|
|
|
buf[6] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff;
|
|
|
|
buf[7] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
transport_kunmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_readcapacity_16(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-07-21 03:13:28 +08:00
|
|
|
unsigned char *buf;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
unsigned long long blocks = dev->transport->get_blocks(dev);
|
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
buf = transport_kmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[0] = (blocks >> 56) & 0xff;
|
|
|
|
buf[1] = (blocks >> 48) & 0xff;
|
|
|
|
buf[2] = (blocks >> 40) & 0xff;
|
|
|
|
buf[3] = (blocks >> 32) & 0xff;
|
|
|
|
buf[4] = (blocks >> 24) & 0xff;
|
|
|
|
buf[5] = (blocks >> 16) & 0xff;
|
|
|
|
buf[6] = (blocks >> 8) & 0xff;
|
|
|
|
buf[7] = blocks & 0xff;
|
2011-07-19 16:55:10 +08:00
|
|
|
buf[8] = (dev->se_sub_dev->se_dev_attrib.block_size >> 24) & 0xff;
|
|
|
|
buf[9] = (dev->se_sub_dev->se_dev_attrib.block_size >> 16) & 0xff;
|
|
|
|
buf[10] = (dev->se_sub_dev->se_dev_attrib.block_size >> 8) & 0xff;
|
|
|
|
buf[11] = dev->se_sub_dev->se_dev_attrib.block_size & 0xff;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* Set Thin Provisioning Enable bit following sbc3r22 in section
|
|
|
|
* READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.emulate_tpu || dev->se_sub_dev->se_dev_attrib.emulate_tpws)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[14] = 0x80;
|
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
transport_kunmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
target_modesense_rwrecovery(unsigned char *p)
|
|
|
|
{
|
|
|
|
p[0] = 0x01;
|
|
|
|
p[1] = 0x0a;
|
|
|
|
|
|
|
|
return 12;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
target_modesense_control(struct se_device *dev, unsigned char *p)
|
|
|
|
{
|
|
|
|
p[0] = 0x0a;
|
|
|
|
p[1] = 0x0a;
|
|
|
|
p[2] = 2;
|
2011-07-17 17:57:58 +08:00
|
|
|
/*
|
|
|
|
* From spc4r23, 7.4.7 Control mode page
|
|
|
|
*
|
|
|
|
* The QUEUE ALGORITHM MODIFIER field (see table 368) specifies
|
|
|
|
* restrictions on the algorithm used for reordering commands
|
|
|
|
* having the SIMPLE task attribute (see SAM-4).
|
|
|
|
*
|
|
|
|
* Table 368 -- QUEUE ALGORITHM MODIFIER field
|
|
|
|
* Code Description
|
|
|
|
* 0h Restricted reordering
|
|
|
|
* 1h Unrestricted reordering allowed
|
|
|
|
* 2h to 7h Reserved
|
|
|
|
* 8h to Fh Vendor specific
|
|
|
|
*
|
|
|
|
* A value of zero in the QUEUE ALGORITHM MODIFIER field specifies that
|
|
|
|
* the device server shall order the processing sequence of commands
|
|
|
|
* having the SIMPLE task attribute such that data integrity is maintained
|
|
|
|
* for that I_T nexus (i.e., if the transmission of new SCSI transport protocol
|
|
|
|
* requests is halted at any time, the final value of all data observable
|
|
|
|
* on the medium shall be the same as if all the commands had been processed
|
|
|
|
* with the ORDERED task attribute).
|
|
|
|
*
|
|
|
|
* A value of one in the QUEUE ALGORITHM MODIFIER field specifies that the
|
|
|
|
* device server may reorder the processing sequence of commands having the
|
|
|
|
* SIMPLE task attribute in any manner. Any data integrity exposures related to
|
|
|
|
* command sequence order shall be explicitly handled by the application client
|
|
|
|
* through the selection of appropriate ommands and task attributes.
|
|
|
|
*/
|
|
|
|
p[3] = (dev->se_sub_dev->se_dev_attrib.emulate_rest_reord == 1) ? 0x00 : 0x10;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* From spc4r17, section 7.4.6 Control mode Page
|
|
|
|
*
|
|
|
|
* Unit Attention interlocks control (UN_INTLCK_CTRL) to code 00b
|
|
|
|
*
|
|
|
|
* 00b: The logical unit shall clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall not establish a unit attention condition when a com-
|
|
|
|
* mand is completed with BUSY, TASK SET FULL, or RESERVATION CONFLICT
|
|
|
|
* status.
|
|
|
|
*
|
|
|
|
* 10b: The logical unit shall not clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall not establish a unit attention condition when
|
|
|
|
* a command is completed with BUSY, TASK SET FULL, or RESERVATION
|
|
|
|
* CONFLICT status.
|
|
|
|
*
|
|
|
|
* 11b a The logical unit shall not clear any unit attention condition
|
|
|
|
* reported in the same I_T_L_Q nexus transaction as a CHECK CONDITION
|
|
|
|
* status and shall establish a unit attention condition for the
|
|
|
|
* initiator port associated with the I_T nexus on which the BUSY,
|
|
|
|
* TASK SET FULL, or RESERVATION CONFLICT status is being returned.
|
|
|
|
* Depending on the status, the additional sense code shall be set to
|
|
|
|
* PREVIOUS BUSY STATUS, PREVIOUS TASK SET FULL STATUS, or PREVIOUS
|
|
|
|
* RESERVATION CONFLICT STATUS. Until it is cleared by a REQUEST SENSE
|
|
|
|
* command, a unit attention condition shall be established only once
|
|
|
|
* for a BUSY, TASK SET FULL, or RESERVATION CONFLICT status regardless
|
|
|
|
* to the number of commands completed with one of those status codes.
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
p[4] = (dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 2) ? 0x30 :
|
|
|
|
(dev->se_sub_dev->se_dev_attrib.emulate_ua_intlck_ctrl == 1) ? 0x20 : 0x00;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* From spc4r17, section 7.4.6 Control mode Page
|
|
|
|
*
|
|
|
|
* Task Aborted Status (TAS) bit set to zero.
|
|
|
|
*
|
|
|
|
* A task aborted status (TAS) bit set to zero specifies that aborted
|
|
|
|
* tasks shall be terminated by the device server without any response
|
|
|
|
* to the application client. A TAS bit set to one specifies that tasks
|
|
|
|
* aborted by the actions of an I_T nexus other than the I_T nexus on
|
|
|
|
* which the command was received shall be completed with TASK ABORTED
|
|
|
|
* status (see SAM-4).
|
|
|
|
*/
|
2011-07-19 16:55:10 +08:00
|
|
|
p[5] = (dev->se_sub_dev->se_dev_attrib.emulate_tas) ? 0x40 : 0x00;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
p[8] = 0xff;
|
|
|
|
p[9] = 0xff;
|
|
|
|
p[11] = 30;
|
|
|
|
|
|
|
|
return 12;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
target_modesense_caching(struct se_device *dev, unsigned char *p)
|
|
|
|
{
|
|
|
|
p[0] = 0x08;
|
|
|
|
p[1] = 0x12;
|
2011-07-19 16:55:10 +08:00
|
|
|
if (dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
p[2] = 0x04; /* Write Cache Enable */
|
|
|
|
p[12] = 0x20; /* Disabled Read Ahead */
|
|
|
|
|
|
|
|
return 20;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
target_modesense_write_protect(unsigned char *buf, int type)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* I believe that the WP bit (bit 7) in the mode header is the same for
|
|
|
|
* all device types..
|
|
|
|
*/
|
|
|
|
switch (type) {
|
|
|
|
case TYPE_DISK:
|
|
|
|
case TYPE_TAPE:
|
|
|
|
default:
|
|
|
|
buf[0] |= 0x80; /* WP bit */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
target_modesense_dpofua(unsigned char *buf, int type)
|
|
|
|
{
|
|
|
|
switch (type) {
|
|
|
|
case TYPE_DISK:
|
|
|
|
buf[0] |= 0x10; /* DPOFUA bit */
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_modesense(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-05-03 08:12:10 +08:00
|
|
|
char *cdb = cmd->t_task_cdb;
|
2011-07-21 03:13:28 +08:00
|
|
|
unsigned char *rbuf;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
int type = dev->transport->get_device_type(dev);
|
2011-11-04 05:50:43 +08:00
|
|
|
int ten = (cmd->t_task_cdb[0] == MODE_SENSE_10);
|
|
|
|
int offset = ten ? 8 : 4;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
int length = 0;
|
|
|
|
unsigned char buf[SE_MODE_PAGE_BUF];
|
|
|
|
|
|
|
|
memset(buf, 0, SE_MODE_PAGE_BUF);
|
|
|
|
|
|
|
|
switch (cdb[2] & 0x3f) {
|
|
|
|
case 0x01:
|
|
|
|
length = target_modesense_rwrecovery(&buf[offset]);
|
|
|
|
break;
|
|
|
|
case 0x08:
|
|
|
|
length = target_modesense_caching(dev, &buf[offset]);
|
|
|
|
break;
|
|
|
|
case 0x0a:
|
|
|
|
length = target_modesense_control(dev, &buf[offset]);
|
|
|
|
break;
|
|
|
|
case 0x3f:
|
|
|
|
length = target_modesense_rwrecovery(&buf[offset]);
|
|
|
|
length += target_modesense_caching(dev, &buf[offset+length]);
|
|
|
|
length += target_modesense_control(dev, &buf[offset+length]);
|
|
|
|
break;
|
|
|
|
default:
|
2011-08-13 01:01:24 +08:00
|
|
|
pr_err("MODE SENSE: unimplemented page/subpage: 0x%02x/0x%02x\n",
|
|
|
|
cdb[2] & 0x3f, cdb[3]);
|
2011-11-04 17:36:16 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_UNKNOWN_MODE_PAGE;
|
|
|
|
return -EINVAL;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
offset += length;
|
|
|
|
|
|
|
|
if (ten) {
|
|
|
|
offset -= 2;
|
|
|
|
buf[0] = (offset >> 8) & 0xff;
|
|
|
|
buf[1] = offset & 0xff;
|
|
|
|
|
2011-07-19 16:55:10 +08:00
|
|
|
if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
(cmd->se_deve &&
|
|
|
|
(cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
|
|
|
|
target_modesense_write_protect(&buf[3], type);
|
|
|
|
|
2011-07-19 16:55:10 +08:00
|
|
|
if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
|
|
|
|
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
target_modesense_dpofua(&buf[3], type);
|
|
|
|
|
|
|
|
if ((offset + 2) > cmd->data_length)
|
|
|
|
offset = cmd->data_length;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
offset -= 1;
|
|
|
|
buf[0] = offset & 0xff;
|
|
|
|
|
2011-07-19 16:55:10 +08:00
|
|
|
if ((cmd->se_lun->lun_access & TRANSPORT_LUNFLAGS_READ_ONLY) ||
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
(cmd->se_deve &&
|
|
|
|
(cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY)))
|
|
|
|
target_modesense_write_protect(&buf[2], type);
|
|
|
|
|
2011-07-19 16:55:10 +08:00
|
|
|
if ((dev->se_sub_dev->se_dev_attrib.emulate_write_cache > 0) &&
|
|
|
|
(dev->se_sub_dev->se_dev_attrib.emulate_fua_write > 0))
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
target_modesense_dpofua(&buf[2], type);
|
|
|
|
|
|
|
|
if ((offset + 1) > cmd->data_length)
|
|
|
|
offset = cmd->data_length;
|
|
|
|
}
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
rbuf = transport_kmap_data_sg(cmd);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
memcpy(rbuf, buf, offset);
|
2012-01-17 08:57:08 +08:00
|
|
|
transport_kunmap_data_sg(cmd);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_request_sense(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-05-03 08:12:10 +08:00
|
|
|
unsigned char *cdb = cmd->t_task_cdb;
|
2011-07-21 03:13:28 +08:00
|
|
|
unsigned char *buf;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
u8 ua_asc = 0, ua_ascq = 0;
|
2011-07-21 03:13:28 +08:00
|
|
|
int err = 0;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
if (cdb[1] & 0x01) {
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_err("REQUEST_SENSE description emulation not"
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
" supported\n");
|
2011-11-04 17:36:16 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
|
|
|
|
return -ENOSYS;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
buf = transport_kmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2011-06-09 01:36:43 +08:00
|
|
|
if (!core_scsi3_ua_clear_for_request_sense(cmd, &ua_asc, &ua_ascq)) {
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/*
|
|
|
|
* CURRENT ERROR, UNIT ATTENTION
|
|
|
|
*/
|
|
|
|
buf[0] = 0x70;
|
|
|
|
buf[SPC_SENSE_KEY_OFFSET] = UNIT_ATTENTION;
|
2012-01-18 21:04:29 +08:00
|
|
|
|
|
|
|
if (cmd->data_length < 18) {
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[7] = 0x00;
|
2011-07-21 03:13:28 +08:00
|
|
|
err = -EINVAL;
|
|
|
|
goto end;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
/*
|
|
|
|
* The Additional Sense Code (ASC) from the UNIT ATTENTION
|
|
|
|
*/
|
|
|
|
buf[SPC_ASC_KEY_OFFSET] = ua_asc;
|
|
|
|
buf[SPC_ASCQ_KEY_OFFSET] = ua_ascq;
|
|
|
|
buf[7] = 0x0A;
|
|
|
|
} else {
|
|
|
|
/*
|
|
|
|
* CURRENT ERROR, NO SENSE
|
|
|
|
*/
|
|
|
|
buf[0] = 0x70;
|
|
|
|
buf[SPC_SENSE_KEY_OFFSET] = NO_SENSE;
|
2012-01-18 21:04:29 +08:00
|
|
|
|
|
|
|
if (cmd->data_length < 18) {
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
buf[7] = 0x00;
|
2011-07-21 03:13:28 +08:00
|
|
|
err = -EINVAL;
|
|
|
|
goto end;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
/*
|
|
|
|
* NO ADDITIONAL SENSE INFORMATION
|
|
|
|
*/
|
|
|
|
buf[SPC_ASC_KEY_OFFSET] = 0x00;
|
|
|
|
buf[7] = 0x0A;
|
|
|
|
}
|
|
|
|
|
2011-07-21 03:13:28 +08:00
|
|
|
end:
|
2012-01-17 08:57:08 +08:00
|
|
|
transport_kunmap_data_sg(cmd);
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support.
|
|
|
|
* Note this is not used for TCM/pSCSI passthrough
|
|
|
|
*/
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_unmap(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-07-21 03:13:28 +08:00
|
|
|
unsigned char *buf, *ptr = NULL;
|
2011-05-03 08:12:10 +08:00
|
|
|
unsigned char *cdb = &cmd->t_task_cdb[0];
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
sector_t lba;
|
|
|
|
unsigned int size = cmd->data_length, range;
|
2011-07-21 03:13:28 +08:00
|
|
|
int ret = 0, offset;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
unsigned short dl, bd_dl;
|
|
|
|
|
2011-11-04 05:50:43 +08:00
|
|
|
if (!dev->transport->do_discard) {
|
|
|
|
pr_err("UNMAP emulation not supported for: %s\n",
|
|
|
|
dev->transport->name);
|
2011-11-04 17:36:16 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
|
|
|
|
return -ENOSYS;
|
2011-11-04 05:50:43 +08:00
|
|
|
}
|
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
/* First UNMAP block descriptor starts at 8 byte offset */
|
|
|
|
offset = 8;
|
|
|
|
size -= 8;
|
|
|
|
dl = get_unaligned_be16(&cdb[0]);
|
|
|
|
bd_dl = get_unaligned_be16(&cdb[2]);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
2012-01-17 08:57:08 +08:00
|
|
|
buf = transport_kmap_data_sg(cmd);
|
2011-07-21 03:13:28 +08:00
|
|
|
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
ptr = &buf[offset];
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_debug("UNMAP: Sub: %s Using dl: %hu bd_dl: %hu size: %hu"
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
" ptr: %p\n", dev->transport->name, dl, bd_dl, size, ptr);
|
|
|
|
|
|
|
|
while (size) {
|
|
|
|
lba = get_unaligned_be64(&ptr[0]);
|
|
|
|
range = get_unaligned_be32(&ptr[8]);
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_debug("UNMAP: Using lba: %llu and range: %u\n",
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
(unsigned long long)lba, range);
|
|
|
|
|
|
|
|
ret = dev->transport->do_discard(dev, lba, range);
|
|
|
|
if (ret < 0) {
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_err("blkdev_issue_discard() failed: %d\n",
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
ret);
|
2011-07-21 03:13:28 +08:00
|
|
|
goto err;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
ptr += 16;
|
|
|
|
size -= 16;
|
|
|
|
}
|
|
|
|
|
2011-07-21 03:13:28 +08:00
|
|
|
err:
|
2012-01-17 08:57:08 +08:00
|
|
|
transport_kunmap_data_sg(cmd);
|
2012-04-23 23:35:33 +08:00
|
|
|
if (!ret)
|
|
|
|
target_complete_cmd(cmd, GOOD);
|
2011-07-21 03:13:28 +08:00
|
|
|
return ret;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Used for TCM/IBLOCK and TCM/FILEIO for block/blk-lib.c level discard support.
|
|
|
|
* Note this is not used for TCM/pSCSI passthrough
|
|
|
|
*/
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_write_same(struct se_cmd *cmd)
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
{
|
2011-07-19 18:26:37 +08:00
|
|
|
struct se_device *dev = cmd->se_dev;
|
2011-05-03 08:12:10 +08:00
|
|
|
sector_t range;
|
|
|
|
sector_t lba = cmd->t_task_lba;
|
2011-11-04 05:50:43 +08:00
|
|
|
u32 num_blocks;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
int ret;
|
2011-11-04 05:50:43 +08:00
|
|
|
|
|
|
|
if (!dev->transport->do_discard) {
|
|
|
|
pr_err("WRITE_SAME emulation not supported"
|
|
|
|
" for: %s\n", dev->transport->name);
|
2011-11-04 17:36:16 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
|
|
|
|
return -ENOSYS;
|
2011-11-04 05:50:43 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
if (cmd->t_task_cdb[0] == WRITE_SAME)
|
|
|
|
num_blocks = get_unaligned_be16(&cmd->t_task_cdb[7]);
|
|
|
|
else if (cmd->t_task_cdb[0] == WRITE_SAME_16)
|
|
|
|
num_blocks = get_unaligned_be32(&cmd->t_task_cdb[10]);
|
|
|
|
else /* WRITE_SAME_32 via VARIABLE_LENGTH_CMD */
|
|
|
|
num_blocks = get_unaligned_be32(&cmd->t_task_cdb[28]);
|
|
|
|
|
2011-05-07 08:55:35 +08:00
|
|
|
/*
|
2011-07-28 15:07:03 +08:00
|
|
|
* Use the explicit range when non zero is supplied, otherwise calculate
|
|
|
|
* the remaining range based on ->get_blocks() - starting LBA.
|
2011-05-07 08:55:35 +08:00
|
|
|
*/
|
|
|
|
if (num_blocks != 0)
|
|
|
|
range = num_blocks;
|
|
|
|
else
|
|
|
|
range = (dev->transport->get_blocks(dev) - lba);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_debug("WRITE_SAME UNMAP: LBA: %llu Range: %llu\n",
|
2011-05-07 08:55:35 +08:00
|
|
|
(unsigned long long)lba, (unsigned long long)range);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
|
|
|
|
ret = dev->transport->do_discard(dev, lba, range);
|
|
|
|
if (ret < 0) {
|
2011-06-09 01:36:43 +08:00
|
|
|
pr_debug("blkdev_issue_discard() failed for WRITE_SAME\n");
|
2011-07-19 16:55:10 +08:00
|
|
|
return ret;
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
[SCSI] target: Add LIO target core v4.0.0-rc6
LIO target is a full featured in-kernel target framework with the
following feature set:
High-performance, non-blocking, multithreaded architecture with SIMD
support.
Advanced SCSI feature set:
* Persistent Reservations (PRs)
* Asymmetric Logical Unit Assignment (ALUA)
* Protocol and intra-nexus multiplexing, load-balancing and failover (MC/S)
* Full Error Recovery (ERL=0,1,2)
* Active/active task migration and session continuation (ERL=2)
* Thin LUN provisioning (UNMAP and WRITE_SAMExx)
Multiprotocol target plugins
Storage media independence:
* Virtualization of all storage media; transparent mapping of IO to LUNs
* No hard limits on number of LUNs per Target; maximum LUN size ~750 TB
* Backstores: SATA, SAS, SCSI, BluRay, DVD, FLASH, USB, ramdisk, etc.
Standards compliance:
* Full compliance with IETF (RFC 3720)
* Full implementation of SPC-4 PRs and ALUA
Significant code cleanups done by Christoph Hellwig.
[jejb: fix up for new block bdev exclusive interface. Minor fixes from
Randy Dunlap and Dan Carpenter.]
Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-18 03:11:26 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_synchronize_cache(struct se_cmd *cmd)
|
2011-11-04 05:50:43 +08:00
|
|
|
{
|
2012-04-23 23:35:33 +08:00
|
|
|
if (!cmd->se_dev->transport->do_sync_cache) {
|
2011-11-04 05:50:43 +08:00
|
|
|
pr_err("SYNCHRONIZE_CACHE emulation not supported"
|
2012-04-23 23:35:33 +08:00
|
|
|
" for: %s\n", cmd->se_dev->transport->name);
|
2011-11-04 17:36:16 +08:00
|
|
|
cmd->scsi_sense_reason = TCM_UNSUPPORTED_SCSI_OPCODE;
|
|
|
|
return -ENOSYS;
|
2011-11-04 05:50:43 +08:00
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
cmd->se_dev->transport->do_sync_cache(cmd);
|
2011-11-04 05:50:43 +08:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2012-04-23 23:35:33 +08:00
|
|
|
int target_emulate_noop(struct se_cmd *cmd)
|
2011-11-04 05:50:44 +08:00
|
|
|
{
|
2012-04-23 23:35:33 +08:00
|
|
|
target_complete_cmd(cmd, GOOD);
|
2011-11-04 05:50:44 +08:00
|
|
|
return 0;
|
|
|
|
}
|