[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>
This commit is contained in:
Nicholas Bellinger
committed by
James Bottomley
James Bottomley
parent
f4013c3879
commit
c66ac9db8d
147
include/target/configfs_macros.h
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147
include/target/configfs_macros.h
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@@ -0,0 +1,147 @@
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/* -*- mode: c; c-basic-offset: 8; -*-
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* vim: noexpandtab sw=8 ts=8 sts=0:
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*
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* configfs_macros.h - extends macros for configfs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* General Public License for more details.
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*
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||||
* You should have received a copy of the GNU General Public
|
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*
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* Based on sysfs:
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* sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel
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*
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* Based on kobject.h:
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* Copyright (c) 2002-2003 Patrick Mochel
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* Copyright (c) 2002-2003 Open Source Development Labs
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*
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* configfs Copyright (C) 2005 Oracle. All rights reserved.
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*
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* Added CONFIGFS_EATTR() macros from original configfs.h macros
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* Copright (C) 2008-2009 Nicholas A. Bellinger <nab@linux-iscsi.org>
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*
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* Please read Documentation/filesystems/configfs.txt before using the
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* configfs interface, ESPECIALLY the parts about reference counts and
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* item destructors.
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*/
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#ifndef _CONFIGFS_MACROS_H_
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#define _CONFIGFS_MACROS_H_
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#include <linux/configfs.h>
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/*
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* Users often need to create attribute structures for their configurable
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* attributes, containing a configfs_attribute member and function pointers
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* for the show() and store() operations on that attribute. If they don't
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* need anything else on the extended attribute structure, they can use
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* this macro to define it. The argument _name isends up as
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* 'struct _name_attribute, as well as names of to CONFIGFS_ATTR_OPS() below.
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* The argument _item is the name of the structure containing the
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* struct config_item or struct config_group structure members
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*/
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#define CONFIGFS_EATTR_STRUCT(_name, _item) \
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struct _name##_attribute { \
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struct configfs_attribute attr; \
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ssize_t (*show)(struct _item *, char *); \
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ssize_t (*store)(struct _item *, const char *, size_t); \
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}
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/*
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* With the extended attribute structure, users can use this macro
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* (similar to sysfs' __ATTR) to make defining attributes easier.
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* An example:
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* #define MYITEM_EATTR(_name, _mode, _show, _store) \
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* struct myitem_attribute childless_attr_##_name = \
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* __CONFIGFS_EATTR(_name, _mode, _show, _store)
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*/
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#define __CONFIGFS_EATTR(_name, _mode, _show, _store) \
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{ \
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.attr = { \
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.ca_name = __stringify(_name), \
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.ca_mode = _mode, \
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.ca_owner = THIS_MODULE, \
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}, \
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.show = _show, \
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.store = _store, \
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}
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/* Here is a readonly version, only requiring a show() operation */
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#define __CONFIGFS_EATTR_RO(_name, _show) \
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{ \
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.attr = { \
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.ca_name = __stringify(_name), \
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.ca_mode = 0444, \
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.ca_owner = THIS_MODULE, \
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}, \
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.show = _show, \
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}
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/*
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* With these extended attributes, the simple show_attribute() and
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* store_attribute() operations need to call the show() and store() of the
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* attributes. This is a common pattern, so we provide a macro to define
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* them. The argument _name is the name of the attribute defined by
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* CONFIGFS_ATTR_STRUCT(). The argument _item is the name of the structure
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* containing the struct config_item or struct config_group structure member.
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* The argument _item_member is the actual name of the struct config_* struct
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* in your _item structure. Meaning my_structure->some_config_group.
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* ^^_item^^^^^ ^^_item_member^^^
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* This macro expects the attributes to be named "struct <name>_attribute".
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*/
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#define CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member) \
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static struct _item *to_##_name(struct config_item *ci) \
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{ \
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return (ci) ? container_of(to_config_group(ci), struct _item, \
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_item_member) : NULL; \
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}
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#define CONFIGFS_EATTR_OPS_SHOW(_name, _item) \
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static ssize_t _name##_attr_show(struct config_item *item, \
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struct configfs_attribute *attr, \
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char *page) \
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{ \
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struct _item *_item = to_##_name(item); \
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struct _name##_attribute * _name##_attr = \
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container_of(attr, struct _name##_attribute, attr); \
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ssize_t ret = 0; \
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\
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if (_name##_attr->show) \
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ret = _name##_attr->show(_item, page); \
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return ret; \
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}
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#define CONFIGFS_EATTR_OPS_STORE(_name, _item) \
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static ssize_t _name##_attr_store(struct config_item *item, \
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struct configfs_attribute *attr, \
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const char *page, size_t count) \
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{ \
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struct _item *_item = to_##_name(item); \
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struct _name##_attribute * _name##_attr = \
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container_of(attr, struct _name##_attribute, attr); \
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ssize_t ret = -EINVAL; \
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\
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if (_name##_attr->store) \
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ret = _name##_attr->store(_item, page, count); \
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return ret; \
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}
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#define CONFIGFS_EATTR_OPS(_name, _item, _item_member) \
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CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \
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CONFIGFS_EATTR_OPS_SHOW(_name, _item); \
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CONFIGFS_EATTR_OPS_STORE(_name, _item);
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#define CONFIGFS_EATTR_OPS_RO(_name, _item, _item_member) \
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CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \
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CONFIGFS_EATTR_OPS_SHOW(_name, _item);
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#endif /* _CONFIGFS_MACROS_H_ */
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937
include/target/target_core_base.h
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937
include/target/target_core_base.h
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@@ -0,0 +1,937 @@
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#ifndef TARGET_CORE_BASE_H
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#define TARGET_CORE_BASE_H
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#include <linux/in.h>
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#include <linux/configfs.h>
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#include <linux/dma-mapping.h>
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#include <linux/blkdev.h>
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#include <scsi/scsi_cmnd.h>
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#include <net/sock.h>
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#include <net/tcp.h>
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#include "target_core_mib.h"
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#define TARGET_CORE_MOD_VERSION "v4.0.0-rc6"
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#define SHUTDOWN_SIGS (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT))
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/* Used by transport_generic_allocate_iovecs() */
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#define TRANSPORT_IOV_DATA_BUFFER 5
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/* Maximum Number of LUNs per Target Portal Group */
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#define TRANSPORT_MAX_LUNS_PER_TPG 256
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/*
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* By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
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*
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* Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and
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* include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use
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* 16-byte CDBs by default and require an extra allocation for
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* 32-byte CDBs to becasue of legacy issues.
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*
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* Within TCM Core there are no such legacy limitiations, so we go ahead
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* use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size()
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* within all TCM Core and subsystem plugin code.
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*/
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#define TCM_MAX_COMMAND_SIZE 32
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/*
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* From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently
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* defined 96, but the real limit is 252 (or 260 including the header)
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*/
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#define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE
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/* Used by transport_send_check_condition_and_sense() */
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#define SPC_SENSE_KEY_OFFSET 2
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#define SPC_ASC_KEY_OFFSET 12
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#define SPC_ASCQ_KEY_OFFSET 13
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#define TRANSPORT_IQN_LEN 224
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/* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */
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#define LU_GROUP_NAME_BUF 256
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/* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */
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#define TG_PT_GROUP_NAME_BUF 256
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/* Used to parse VPD into struct t10_vpd */
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#define VPD_TMP_BUF_SIZE 128
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/* Used by transport_generic_cmd_sequencer() */
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#define READ_BLOCK_LEN 6
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#define READ_CAP_LEN 8
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#define READ_POSITION_LEN 20
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#define INQUIRY_LEN 36
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/* Used by transport_get_inquiry_vpd_serial() */
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#define INQUIRY_VPD_SERIAL_LEN 254
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/* Used by transport_get_inquiry_vpd_device_ident() */
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#define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
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/* struct se_hba->hba_flags */
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enum hba_flags_table {
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HBA_FLAGS_INTERNAL_USE = 0x01,
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HBA_FLAGS_PSCSI_MODE = 0x02,
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};
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/* struct se_lun->lun_status */
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enum transport_lun_status_table {
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TRANSPORT_LUN_STATUS_FREE = 0,
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TRANSPORT_LUN_STATUS_ACTIVE = 1,
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};
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/* struct se_portal_group->se_tpg_type */
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enum transport_tpg_type_table {
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TRANSPORT_TPG_TYPE_NORMAL = 0,
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TRANSPORT_TPG_TYPE_DISCOVERY = 1,
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};
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/* Used for generate timer flags */
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enum timer_flags_table {
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TF_RUNNING = 0x01,
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TF_STOP = 0x02,
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};
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/* Special transport agnostic struct se_cmd->t_states */
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enum transport_state_table {
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TRANSPORT_NO_STATE = 0,
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TRANSPORT_NEW_CMD = 1,
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TRANSPORT_DEFERRED_CMD = 2,
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TRANSPORT_WRITE_PENDING = 3,
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TRANSPORT_PROCESS_WRITE = 4,
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TRANSPORT_PROCESSING = 5,
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TRANSPORT_COMPLETE_OK = 6,
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TRANSPORT_COMPLETE_FAILURE = 7,
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TRANSPORT_COMPLETE_TIMEOUT = 8,
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TRANSPORT_PROCESS_TMR = 9,
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TRANSPORT_TMR_COMPLETE = 10,
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TRANSPORT_ISTATE_PROCESSING = 11,
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TRANSPORT_ISTATE_PROCESSED = 12,
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TRANSPORT_KILL = 13,
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TRANSPORT_REMOVE = 14,
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TRANSPORT_FREE = 15,
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TRANSPORT_NEW_CMD_MAP = 16,
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};
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/* Used for struct se_cmd->se_cmd_flags */
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enum se_cmd_flags_table {
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SCF_SUPPORTED_SAM_OPCODE = 0x00000001,
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SCF_TRANSPORT_TASK_SENSE = 0x00000002,
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SCF_EMULATED_TASK_SENSE = 0x00000004,
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SCF_SCSI_DATA_SG_IO_CDB = 0x00000008,
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SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010,
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SCF_SCSI_CONTROL_NONSG_IO_CDB = 0x00000020,
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SCF_SCSI_NON_DATA_CDB = 0x00000040,
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SCF_SCSI_CDB_EXCEPTION = 0x00000080,
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SCF_SCSI_RESERVATION_CONFLICT = 0x00000100,
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SCF_CMD_PASSTHROUGH_NOALLOC = 0x00000200,
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SCF_SE_CMD_FAILED = 0x00000400,
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SCF_SE_LUN_CMD = 0x00000800,
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SCF_SE_ALLOW_EOO = 0x00001000,
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SCF_SE_DISABLE_ONLINE_CHECK = 0x00002000,
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SCF_SENT_CHECK_CONDITION = 0x00004000,
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SCF_OVERFLOW_BIT = 0x00008000,
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SCF_UNDERFLOW_BIT = 0x00010000,
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SCF_SENT_DELAYED_TAS = 0x00020000,
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SCF_ALUA_NON_OPTIMIZED = 0x00040000,
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SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000,
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SCF_PASSTHROUGH_SG_TO_MEM = 0x00100000,
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SCF_PASSTHROUGH_CONTIG_TO_SG = 0x00200000,
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SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
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SCF_EMULATE_SYNC_CACHE = 0x00800000,
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SCF_EMULATE_CDB_ASYNC = 0x01000000,
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SCF_EMULATE_SYNC_UNMAP = 0x02000000
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};
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/* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
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enum transport_lunflags_table {
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TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
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TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
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TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
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TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
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};
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/* struct se_device->dev_status */
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enum transport_device_status_table {
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TRANSPORT_DEVICE_ACTIVATED = 0x01,
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TRANSPORT_DEVICE_DEACTIVATED = 0x02,
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TRANSPORT_DEVICE_QUEUE_FULL = 0x04,
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TRANSPORT_DEVICE_SHUTDOWN = 0x08,
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TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10,
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TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20,
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};
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/*
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* Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason
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* to signal which ASC/ASCQ sense payload should be built.
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*/
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enum tcm_sense_reason_table {
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TCM_NON_EXISTENT_LUN = 0x01,
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TCM_UNSUPPORTED_SCSI_OPCODE = 0x02,
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TCM_INCORRECT_AMOUNT_OF_DATA = 0x03,
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TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04,
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TCM_SERVICE_CRC_ERROR = 0x05,
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TCM_SNACK_REJECTED = 0x06,
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TCM_SECTOR_COUNT_TOO_MANY = 0x07,
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TCM_INVALID_CDB_FIELD = 0x08,
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TCM_INVALID_PARAMETER_LIST = 0x09,
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TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a,
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TCM_UNKNOWN_MODE_PAGE = 0x0b,
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TCM_WRITE_PROTECTED = 0x0c,
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TCM_CHECK_CONDITION_ABORT_CMD = 0x0d,
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TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e,
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TCM_CHECK_CONDITION_NOT_READY = 0x0f,
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};
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struct se_obj {
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atomic_t obj_access_count;
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} ____cacheline_aligned;
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|
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/*
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* Used by TCM Core internally to signal if ALUA emulation is enabled or
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* disabled, or running in with TCM/pSCSI passthrough mode
|
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*/
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typedef enum {
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SPC_ALUA_PASSTHROUGH,
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SPC2_ALUA_DISABLED,
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SPC3_ALUA_EMULATED
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} t10_alua_index_t;
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|
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/*
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* Used by TCM Core internally to signal if SAM Task Attribute emulation
|
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* is enabled or disabled, or running in with TCM/pSCSI passthrough mode
|
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*/
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typedef enum {
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SAM_TASK_ATTR_PASSTHROUGH,
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SAM_TASK_ATTR_UNTAGGED,
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SAM_TASK_ATTR_EMULATED
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} t10_task_attr_index_t;
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struct se_cmd;
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struct t10_alua {
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t10_alua_index_t alua_type;
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/* ALUA Target Port Group ID */
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u16 alua_tg_pt_gps_counter;
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u32 alua_tg_pt_gps_count;
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spinlock_t tg_pt_gps_lock;
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struct se_subsystem_dev *t10_sub_dev;
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/* Used for default ALUA Target Port Group */
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struct t10_alua_tg_pt_gp *default_tg_pt_gp;
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/* Used for default ALUA Target Port Group ConfigFS group */
|
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struct config_group alua_tg_pt_gps_group;
|
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int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
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struct list_head tg_pt_gps_list;
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} ____cacheline_aligned;
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struct t10_alua_lu_gp {
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u16 lu_gp_id;
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int lu_gp_valid_id;
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u32 lu_gp_members;
|
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atomic_t lu_gp_shutdown;
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atomic_t lu_gp_ref_cnt;
|
||||
spinlock_t lu_gp_lock;
|
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struct config_group lu_gp_group;
|
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struct list_head lu_gp_list;
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struct list_head lu_gp_mem_list;
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} ____cacheline_aligned;
|
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|
||||
struct t10_alua_lu_gp_member {
|
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int lu_gp_assoc:1;
|
||||
atomic_t lu_gp_mem_ref_cnt;
|
||||
spinlock_t lu_gp_mem_lock;
|
||||
struct t10_alua_lu_gp *lu_gp;
|
||||
struct se_device *lu_gp_mem_dev;
|
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struct list_head lu_gp_mem_list;
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} ____cacheline_aligned;
|
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|
||||
struct t10_alua_tg_pt_gp {
|
||||
u16 tg_pt_gp_id;
|
||||
int tg_pt_gp_valid_id;
|
||||
int tg_pt_gp_alua_access_status;
|
||||
int tg_pt_gp_alua_access_type;
|
||||
int tg_pt_gp_nonop_delay_msecs;
|
||||
int tg_pt_gp_trans_delay_msecs;
|
||||
int tg_pt_gp_pref;
|
||||
int tg_pt_gp_write_metadata;
|
||||
/* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
|
||||
#define ALUA_MD_BUF_LEN 1024
|
||||
u32 tg_pt_gp_md_buf_len;
|
||||
u32 tg_pt_gp_members;
|
||||
atomic_t tg_pt_gp_alua_access_state;
|
||||
atomic_t tg_pt_gp_ref_cnt;
|
||||
spinlock_t tg_pt_gp_lock;
|
||||
struct mutex tg_pt_gp_md_mutex;
|
||||
struct se_subsystem_dev *tg_pt_gp_su_dev;
|
||||
struct config_group tg_pt_gp_group;
|
||||
struct list_head tg_pt_gp_list;
|
||||
struct list_head tg_pt_gp_mem_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct t10_alua_tg_pt_gp_member {
|
||||
int tg_pt_gp_assoc:1;
|
||||
atomic_t tg_pt_gp_mem_ref_cnt;
|
||||
spinlock_t tg_pt_gp_mem_lock;
|
||||
struct t10_alua_tg_pt_gp *tg_pt_gp;
|
||||
struct se_port *tg_pt;
|
||||
struct list_head tg_pt_gp_mem_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct t10_vpd {
|
||||
unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
|
||||
int protocol_identifier_set;
|
||||
u32 protocol_identifier;
|
||||
u32 device_identifier_code_set;
|
||||
u32 association;
|
||||
u32 device_identifier_type;
|
||||
struct list_head vpd_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct t10_wwn {
|
||||
unsigned char vendor[8];
|
||||
unsigned char model[16];
|
||||
unsigned char revision[4];
|
||||
unsigned char unit_serial[INQUIRY_VPD_SERIAL_LEN];
|
||||
spinlock_t t10_vpd_lock;
|
||||
struct se_subsystem_dev *t10_sub_dev;
|
||||
struct config_group t10_wwn_group;
|
||||
struct list_head t10_vpd_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
|
||||
/*
|
||||
* Used by TCM Core internally to signal if >= SPC-3 peristent reservations
|
||||
* emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
|
||||
* mode
|
||||
*/
|
||||
typedef enum {
|
||||
SPC_PASSTHROUGH,
|
||||
SPC2_RESERVATIONS,
|
||||
SPC3_PERSISTENT_RESERVATIONS
|
||||
} t10_reservations_index_t;
|
||||
|
||||
struct t10_pr_registration {
|
||||
/* Used for fabrics that contain WWN+ISID */
|
||||
#define PR_REG_ISID_LEN 16
|
||||
/* PR_REG_ISID_LEN + ',i,0x' */
|
||||
#define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
|
||||
char pr_reg_isid[PR_REG_ISID_LEN];
|
||||
/* Used during APTPL metadata reading */
|
||||
#define PR_APTPL_MAX_IPORT_LEN 256
|
||||
unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN];
|
||||
/* Used during APTPL metadata reading */
|
||||
#define PR_APTPL_MAX_TPORT_LEN 256
|
||||
unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
|
||||
/* For writing out live meta data */
|
||||
unsigned char *pr_aptpl_buf;
|
||||
u16 pr_aptpl_rpti;
|
||||
u16 pr_reg_tpgt;
|
||||
/* Reservation effects all target ports */
|
||||
int pr_reg_all_tg_pt;
|
||||
/* Activate Persistence across Target Power Loss */
|
||||
int pr_reg_aptpl;
|
||||
int pr_res_holder;
|
||||
int pr_res_type;
|
||||
int pr_res_scope;
|
||||
/* Used for fabric initiator WWPNs using a ISID */
|
||||
int isid_present_at_reg:1;
|
||||
u32 pr_res_mapped_lun;
|
||||
u32 pr_aptpl_target_lun;
|
||||
u32 pr_res_generation;
|
||||
u64 pr_reg_bin_isid;
|
||||
u64 pr_res_key;
|
||||
atomic_t pr_res_holders;
|
||||
struct se_node_acl *pr_reg_nacl;
|
||||
struct se_dev_entry *pr_reg_deve;
|
||||
struct se_lun *pr_reg_tg_pt_lun;
|
||||
struct list_head pr_reg_list;
|
||||
struct list_head pr_reg_abort_list;
|
||||
struct list_head pr_reg_aptpl_list;
|
||||
struct list_head pr_reg_atp_list;
|
||||
struct list_head pr_reg_atp_mem_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
/*
|
||||
* This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS,
|
||||
* SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c:
|
||||
* core_setup_reservations()
|
||||
*/
|
||||
struct t10_reservation_ops {
|
||||
int (*t10_reservation_check)(struct se_cmd *, u32 *);
|
||||
int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32);
|
||||
int (*t10_pr_register)(struct se_cmd *);
|
||||
int (*t10_pr_clear)(struct se_cmd *);
|
||||
};
|
||||
|
||||
struct t10_reservation_template {
|
||||
/* Reservation effects all target ports */
|
||||
int pr_all_tg_pt;
|
||||
/* Activate Persistence across Target Power Loss enabled
|
||||
* for SCSI device */
|
||||
int pr_aptpl_active;
|
||||
/* Used by struct t10_reservation_template->pr_aptpl_buf_len */
|
||||
#define PR_APTPL_BUF_LEN 8192
|
||||
u32 pr_aptpl_buf_len;
|
||||
u32 pr_generation;
|
||||
t10_reservations_index_t res_type;
|
||||
spinlock_t registration_lock;
|
||||
spinlock_t aptpl_reg_lock;
|
||||
/*
|
||||
* This will always be set by one individual I_T Nexus.
|
||||
* However with all_tg_pt=1, other I_T Nexus from the
|
||||
* same initiator can access PR reg/res info on a different
|
||||
* target port.
|
||||
*
|
||||
* There is also the 'All Registrants' case, where there is
|
||||
* a single *pr_res_holder of the reservation, but all
|
||||
* registrations are considered reservation holders.
|
||||
*/
|
||||
struct se_node_acl *pr_res_holder;
|
||||
struct list_head registration_list;
|
||||
struct list_head aptpl_reg_list;
|
||||
struct t10_reservation_ops pr_ops;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_queue_req {
|
||||
int state;
|
||||
void *cmd;
|
||||
struct list_head qr_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_queue_obj {
|
||||
atomic_t queue_cnt;
|
||||
spinlock_t cmd_queue_lock;
|
||||
struct list_head qobj_list;
|
||||
wait_queue_head_t thread_wq;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
/*
|
||||
* Used one per struct se_cmd to hold all extra struct se_task
|
||||
* metadata. This structure is setup and allocated in
|
||||
* drivers/target/target_core_transport.c:__transport_alloc_se_cmd()
|
||||
*/
|
||||
struct se_transport_task {
|
||||
unsigned char *t_task_cdb;
|
||||
unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
|
||||
unsigned long long t_task_lba;
|
||||
int t_tasks_failed;
|
||||
int t_tasks_fua;
|
||||
int t_tasks_bidi:1;
|
||||
u32 t_task_cdbs;
|
||||
u32 t_tasks_check;
|
||||
u32 t_tasks_no;
|
||||
u32 t_tasks_sectors;
|
||||
u32 t_tasks_se_num;
|
||||
u32 t_tasks_se_bidi_num;
|
||||
u32 t_tasks_sg_chained_no;
|
||||
atomic_t t_fe_count;
|
||||
atomic_t t_se_count;
|
||||
atomic_t t_task_cdbs_left;
|
||||
atomic_t t_task_cdbs_ex_left;
|
||||
atomic_t t_task_cdbs_timeout_left;
|
||||
atomic_t t_task_cdbs_sent;
|
||||
atomic_t t_transport_aborted;
|
||||
atomic_t t_transport_active;
|
||||
atomic_t t_transport_complete;
|
||||
atomic_t t_transport_queue_active;
|
||||
atomic_t t_transport_sent;
|
||||
atomic_t t_transport_stop;
|
||||
atomic_t t_transport_timeout;
|
||||
atomic_t transport_dev_active;
|
||||
atomic_t transport_lun_active;
|
||||
atomic_t transport_lun_fe_stop;
|
||||
atomic_t transport_lun_stop;
|
||||
spinlock_t t_state_lock;
|
||||
struct completion t_transport_stop_comp;
|
||||
struct completion transport_lun_fe_stop_comp;
|
||||
struct completion transport_lun_stop_comp;
|
||||
struct scatterlist *t_tasks_sg_chained;
|
||||
struct scatterlist t_tasks_sg_bounce;
|
||||
void *t_task_buf;
|
||||
/*
|
||||
* Used for pre-registered fabric SGL passthrough WRITE and READ
|
||||
* with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
|
||||
* and other HW target mode fabric modules.
|
||||
*/
|
||||
struct scatterlist *t_task_pt_sgl;
|
||||
struct list_head *t_mem_list;
|
||||
/* Used for BIDI READ */
|
||||
struct list_head *t_mem_bidi_list;
|
||||
struct list_head t_task_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_task {
|
||||
unsigned char task_sense;
|
||||
struct scatterlist *task_sg;
|
||||
struct scatterlist *task_sg_bidi;
|
||||
u8 task_scsi_status;
|
||||
u8 task_flags;
|
||||
int task_error_status;
|
||||
int task_state_flags;
|
||||
int task_padded_sg:1;
|
||||
unsigned long long task_lba;
|
||||
u32 task_no;
|
||||
u32 task_sectors;
|
||||
u32 task_size;
|
||||
u32 task_sg_num;
|
||||
u32 task_sg_offset;
|
||||
enum dma_data_direction task_data_direction;
|
||||
struct se_cmd *task_se_cmd;
|
||||
struct se_device *se_dev;
|
||||
struct completion task_stop_comp;
|
||||
atomic_t task_active;
|
||||
atomic_t task_execute_queue;
|
||||
atomic_t task_timeout;
|
||||
atomic_t task_sent;
|
||||
atomic_t task_stop;
|
||||
atomic_t task_state_active;
|
||||
struct timer_list task_timer;
|
||||
struct se_device *se_obj_ptr;
|
||||
struct list_head t_list;
|
||||
struct list_head t_execute_list;
|
||||
struct list_head t_state_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define TASK_CMD(task) ((struct se_cmd *)task->task_se_cmd)
|
||||
#define TASK_DEV(task) ((struct se_device *)task->se_dev)
|
||||
|
||||
struct se_cmd {
|
||||
/* SAM response code being sent to initiator */
|
||||
u8 scsi_status;
|
||||
u8 scsi_asc;
|
||||
u8 scsi_ascq;
|
||||
u8 scsi_sense_reason;
|
||||
u16 scsi_sense_length;
|
||||
/* Delay for ALUA Active/NonOptimized state access in milliseconds */
|
||||
int alua_nonop_delay;
|
||||
/* See include/linux/dma-mapping.h */
|
||||
enum dma_data_direction data_direction;
|
||||
/* For SAM Task Attribute */
|
||||
int sam_task_attr;
|
||||
/* Transport protocol dependent state, see transport_state_table */
|
||||
enum transport_state_table t_state;
|
||||
/* Transport protocol dependent state for out of order CmdSNs */
|
||||
int deferred_t_state;
|
||||
/* Transport specific error status */
|
||||
int transport_error_status;
|
||||
/* See se_cmd_flags_table */
|
||||
u32 se_cmd_flags;
|
||||
u32 se_ordered_id;
|
||||
/* Total size in bytes associated with command */
|
||||
u32 data_length;
|
||||
/* SCSI Presented Data Transfer Length */
|
||||
u32 cmd_spdtl;
|
||||
u32 residual_count;
|
||||
u32 orig_fe_lun;
|
||||
/* Persistent Reservation key */
|
||||
u64 pr_res_key;
|
||||
atomic_t transport_sent;
|
||||
/* Used for sense data */
|
||||
void *sense_buffer;
|
||||
struct list_head se_delayed_list;
|
||||
struct list_head se_ordered_list;
|
||||
struct list_head se_lun_list;
|
||||
struct se_device *se_dev;
|
||||
struct se_dev_entry *se_deve;
|
||||
struct se_device *se_obj_ptr;
|
||||
struct se_device *se_orig_obj_ptr;
|
||||
struct se_lun *se_lun;
|
||||
/* Only used for internal passthrough and legacy TCM fabric modules */
|
||||
struct se_session *se_sess;
|
||||
struct se_tmr_req *se_tmr_req;
|
||||
/* t_task is setup to t_task_backstore in transport_init_se_cmd() */
|
||||
struct se_transport_task *t_task;
|
||||
struct se_transport_task t_task_backstore;
|
||||
struct target_core_fabric_ops *se_tfo;
|
||||
int (*transport_emulate_cdb)(struct se_cmd *);
|
||||
void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *);
|
||||
void (*transport_wait_for_tasks)(struct se_cmd *, int, int);
|
||||
void (*transport_complete_callback)(struct se_cmd *);
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define T_TASK(cmd) ((struct se_transport_task *)(cmd->t_task))
|
||||
#define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo)
|
||||
|
||||
struct se_tmr_req {
|
||||
/* Task Management function to be preformed */
|
||||
u8 function;
|
||||
/* Task Management response to send */
|
||||
u8 response;
|
||||
int call_transport;
|
||||
/* Reference to ITT that Task Mgmt should be preformed */
|
||||
u32 ref_task_tag;
|
||||
/* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */
|
||||
u64 ref_task_lun;
|
||||
void *fabric_tmr_ptr;
|
||||
struct se_cmd *task_cmd;
|
||||
struct se_cmd *ref_cmd;
|
||||
struct se_device *tmr_dev;
|
||||
struct se_lun *tmr_lun;
|
||||
struct list_head tmr_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_ua {
|
||||
u8 ua_asc;
|
||||
u8 ua_ascq;
|
||||
struct se_node_acl *ua_nacl;
|
||||
struct list_head ua_dev_list;
|
||||
struct list_head ua_nacl_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_node_acl {
|
||||
char initiatorname[TRANSPORT_IQN_LEN];
|
||||
/* Used to signal demo mode created ACL, disabled by default */
|
||||
int dynamic_node_acl:1;
|
||||
u32 queue_depth;
|
||||
u32 acl_index;
|
||||
u64 num_cmds;
|
||||
u64 read_bytes;
|
||||
u64 write_bytes;
|
||||
spinlock_t stats_lock;
|
||||
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
|
||||
atomic_t acl_pr_ref_count;
|
||||
/* Used for MIB access */
|
||||
atomic_t mib_ref_count;
|
||||
struct se_dev_entry *device_list;
|
||||
struct se_session *nacl_sess;
|
||||
struct se_portal_group *se_tpg;
|
||||
spinlock_t device_list_lock;
|
||||
spinlock_t nacl_sess_lock;
|
||||
struct config_group acl_group;
|
||||
struct config_group acl_attrib_group;
|
||||
struct config_group acl_auth_group;
|
||||
struct config_group acl_param_group;
|
||||
struct config_group *acl_default_groups[4];
|
||||
struct list_head acl_list;
|
||||
struct list_head acl_sess_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_session {
|
||||
/* Used for MIB access */
|
||||
atomic_t mib_ref_count;
|
||||
u64 sess_bin_isid;
|
||||
struct se_node_acl *se_node_acl;
|
||||
struct se_portal_group *se_tpg;
|
||||
void *fabric_sess_ptr;
|
||||
struct list_head sess_list;
|
||||
struct list_head sess_acl_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define SE_SESS(cmd) ((struct se_session *)(cmd)->se_sess)
|
||||
#define SE_NODE_ACL(sess) ((struct se_node_acl *)(sess)->se_node_acl)
|
||||
|
||||
struct se_device;
|
||||
struct se_transform_info;
|
||||
struct scatterlist;
|
||||
|
||||
struct se_lun_acl {
|
||||
char initiatorname[TRANSPORT_IQN_LEN];
|
||||
u32 mapped_lun;
|
||||
struct se_node_acl *se_lun_nacl;
|
||||
struct se_lun *se_lun;
|
||||
struct list_head lacl_list;
|
||||
struct config_group se_lun_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_dev_entry {
|
||||
int def_pr_registered:1;
|
||||
/* See transport_lunflags_table */
|
||||
u32 lun_flags;
|
||||
u32 deve_cmds;
|
||||
u32 mapped_lun;
|
||||
u32 average_bytes;
|
||||
u32 last_byte_count;
|
||||
u32 total_cmds;
|
||||
u32 total_bytes;
|
||||
u64 pr_res_key;
|
||||
u64 creation_time;
|
||||
u32 attach_count;
|
||||
u64 read_bytes;
|
||||
u64 write_bytes;
|
||||
atomic_t ua_count;
|
||||
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
|
||||
atomic_t pr_ref_count;
|
||||
struct se_lun_acl *se_lun_acl;
|
||||
spinlock_t ua_lock;
|
||||
struct se_lun *se_lun;
|
||||
struct list_head alua_port_list;
|
||||
struct list_head ua_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_dev_limits {
|
||||
/* Max supported HW queue depth */
|
||||
u32 hw_queue_depth;
|
||||
/* Max supported virtual queue depth */
|
||||
u32 queue_depth;
|
||||
/* From include/linux/blkdev.h for the other HW/SW limits. */
|
||||
struct queue_limits limits;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_dev_attrib {
|
||||
int emulate_dpo;
|
||||
int emulate_fua_write;
|
||||
int emulate_fua_read;
|
||||
int emulate_write_cache;
|
||||
int emulate_ua_intlck_ctrl;
|
||||
int emulate_tas;
|
||||
int emulate_tpu;
|
||||
int emulate_tpws;
|
||||
int emulate_reservations;
|
||||
int emulate_alua;
|
||||
int enforce_pr_isids;
|
||||
u32 hw_block_size;
|
||||
u32 block_size;
|
||||
u32 hw_max_sectors;
|
||||
u32 max_sectors;
|
||||
u32 optimal_sectors;
|
||||
u32 hw_queue_depth;
|
||||
u32 queue_depth;
|
||||
u32 task_timeout;
|
||||
u32 max_unmap_lba_count;
|
||||
u32 max_unmap_block_desc_count;
|
||||
u32 unmap_granularity;
|
||||
u32 unmap_granularity_alignment;
|
||||
struct se_subsystem_dev *da_sub_dev;
|
||||
struct config_group da_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_subsystem_dev {
|
||||
/* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
|
||||
#define SE_DEV_ALIAS_LEN 512
|
||||
unsigned char se_dev_alias[SE_DEV_ALIAS_LEN];
|
||||
/* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */
|
||||
#define SE_UDEV_PATH_LEN 512
|
||||
unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN];
|
||||
u32 su_dev_flags;
|
||||
struct se_hba *se_dev_hba;
|
||||
struct se_device *se_dev_ptr;
|
||||
struct se_dev_attrib se_dev_attrib;
|
||||
/* T10 Asymmetric Logical Unit Assignment for Target Ports */
|
||||
struct t10_alua t10_alua;
|
||||
/* T10 Inquiry and VPD WWN Information */
|
||||
struct t10_wwn t10_wwn;
|
||||
/* T10 SPC-2 + SPC-3 Reservations */
|
||||
struct t10_reservation_template t10_reservation;
|
||||
spinlock_t se_dev_lock;
|
||||
void *se_dev_su_ptr;
|
||||
struct list_head g_se_dev_list;
|
||||
struct config_group se_dev_group;
|
||||
/* For T10 Reservations */
|
||||
struct config_group se_dev_pr_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define T10_ALUA(su_dev) (&(su_dev)->t10_alua)
|
||||
#define T10_RES(su_dev) (&(su_dev)->t10_reservation)
|
||||
#define T10_PR_OPS(su_dev) (&(su_dev)->t10_reservation.pr_ops)
|
||||
|
||||
struct se_device {
|
||||
/* Set to 1 if thread is NOT sleeping on thread_sem */
|
||||
u8 thread_active;
|
||||
u8 dev_status_timer_flags;
|
||||
/* RELATIVE TARGET PORT IDENTIFER Counter */
|
||||
u16 dev_rpti_counter;
|
||||
/* Used for SAM Task Attribute ordering */
|
||||
u32 dev_cur_ordered_id;
|
||||
u32 dev_flags;
|
||||
u32 dev_port_count;
|
||||
/* See transport_device_status_table */
|
||||
u32 dev_status;
|
||||
u32 dev_tcq_window_closed;
|
||||
/* Physical device queue depth */
|
||||
u32 queue_depth;
|
||||
/* Used for SPC-2 reservations enforce of ISIDs */
|
||||
u64 dev_res_bin_isid;
|
||||
t10_task_attr_index_t dev_task_attr_type;
|
||||
/* Pointer to transport specific device structure */
|
||||
void *dev_ptr;
|
||||
u32 dev_index;
|
||||
u64 creation_time;
|
||||
u32 num_resets;
|
||||
u64 num_cmds;
|
||||
u64 read_bytes;
|
||||
u64 write_bytes;
|
||||
spinlock_t stats_lock;
|
||||
/* Active commands on this virtual SE device */
|
||||
atomic_t active_cmds;
|
||||
atomic_t simple_cmds;
|
||||
atomic_t depth_left;
|
||||
atomic_t dev_ordered_id;
|
||||
atomic_t dev_tur_active;
|
||||
atomic_t execute_tasks;
|
||||
atomic_t dev_status_thr_count;
|
||||
atomic_t dev_hoq_count;
|
||||
atomic_t dev_ordered_sync;
|
||||
struct se_obj dev_obj;
|
||||
struct se_obj dev_access_obj;
|
||||
struct se_obj dev_export_obj;
|
||||
struct se_queue_obj *dev_queue_obj;
|
||||
struct se_queue_obj *dev_status_queue_obj;
|
||||
spinlock_t delayed_cmd_lock;
|
||||
spinlock_t ordered_cmd_lock;
|
||||
spinlock_t execute_task_lock;
|
||||
spinlock_t state_task_lock;
|
||||
spinlock_t dev_alua_lock;
|
||||
spinlock_t dev_reservation_lock;
|
||||
spinlock_t dev_state_lock;
|
||||
spinlock_t dev_status_lock;
|
||||
spinlock_t dev_status_thr_lock;
|
||||
spinlock_t se_port_lock;
|
||||
spinlock_t se_tmr_lock;
|
||||
/* Used for legacy SPC-2 reservationsa */
|
||||
struct se_node_acl *dev_reserved_node_acl;
|
||||
/* Used for ALUA Logical Unit Group membership */
|
||||
struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
|
||||
/* Used for SPC-3 Persistent Reservations */
|
||||
struct t10_pr_registration *dev_pr_res_holder;
|
||||
struct list_head dev_sep_list;
|
||||
struct list_head dev_tmr_list;
|
||||
struct timer_list dev_status_timer;
|
||||
/* Pointer to descriptor for processing thread */
|
||||
struct task_struct *process_thread;
|
||||
pid_t process_thread_pid;
|
||||
struct task_struct *dev_mgmt_thread;
|
||||
struct list_head delayed_cmd_list;
|
||||
struct list_head ordered_cmd_list;
|
||||
struct list_head execute_task_list;
|
||||
struct list_head state_task_list;
|
||||
/* Pointer to associated SE HBA */
|
||||
struct se_hba *se_hba;
|
||||
struct se_subsystem_dev *se_sub_dev;
|
||||
/* Pointer to template of function pointers for transport */
|
||||
struct se_subsystem_api *transport;
|
||||
/* Linked list for struct se_hba struct se_device list */
|
||||
struct list_head dev_list;
|
||||
/* Linked list for struct se_global->g_se_dev_list */
|
||||
struct list_head g_se_dev_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define SE_DEV(cmd) ((struct se_device *)(cmd)->se_lun->lun_se_dev)
|
||||
#define SU_DEV(dev) ((struct se_subsystem_dev *)(dev)->se_sub_dev)
|
||||
#define DEV_ATTRIB(dev) (&(dev)->se_sub_dev->se_dev_attrib)
|
||||
#define DEV_T10_WWN(dev) (&(dev)->se_sub_dev->t10_wwn)
|
||||
|
||||
struct se_hba {
|
||||
u16 hba_tpgt;
|
||||
u32 hba_id;
|
||||
/* See hba_flags_table */
|
||||
u32 hba_flags;
|
||||
/* Virtual iSCSI devices attached. */
|
||||
u32 dev_count;
|
||||
u32 hba_index;
|
||||
atomic_t dev_mib_access_count;
|
||||
atomic_t load_balance_queue;
|
||||
atomic_t left_queue_depth;
|
||||
/* Maximum queue depth the HBA can handle. */
|
||||
atomic_t max_queue_depth;
|
||||
/* Pointer to transport specific host structure. */
|
||||
void *hba_ptr;
|
||||
/* Linked list for struct se_device */
|
||||
struct list_head hba_dev_list;
|
||||
struct list_head hba_list;
|
||||
spinlock_t device_lock;
|
||||
spinlock_t hba_queue_lock;
|
||||
struct config_group hba_group;
|
||||
struct mutex hba_access_mutex;
|
||||
struct se_subsystem_api *transport;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define SE_HBA(d) ((struct se_hba *)(d)->se_hba)
|
||||
|
||||
struct se_lun {
|
||||
/* See transport_lun_status_table */
|
||||
enum transport_lun_status_table lun_status;
|
||||
u32 lun_access;
|
||||
u32 lun_flags;
|
||||
u32 unpacked_lun;
|
||||
atomic_t lun_acl_count;
|
||||
spinlock_t lun_acl_lock;
|
||||
spinlock_t lun_cmd_lock;
|
||||
spinlock_t lun_sep_lock;
|
||||
struct completion lun_shutdown_comp;
|
||||
struct list_head lun_cmd_list;
|
||||
struct list_head lun_acl_list;
|
||||
struct se_device *lun_se_dev;
|
||||
struct config_group lun_group;
|
||||
struct se_port *lun_sep;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define SE_LUN(c) ((struct se_lun *)(c)->se_lun)
|
||||
|
||||
struct se_port {
|
||||
/* RELATIVE TARGET PORT IDENTIFER */
|
||||
u16 sep_rtpi;
|
||||
int sep_tg_pt_secondary_stat;
|
||||
int sep_tg_pt_secondary_write_md;
|
||||
u32 sep_index;
|
||||
struct scsi_port_stats sep_stats;
|
||||
/* Used for ALUA Target Port Groups membership */
|
||||
atomic_t sep_tg_pt_gp_active;
|
||||
atomic_t sep_tg_pt_secondary_offline;
|
||||
/* Used for PR ALL_TG_PT=1 */
|
||||
atomic_t sep_tg_pt_ref_cnt;
|
||||
spinlock_t sep_alua_lock;
|
||||
struct mutex sep_tg_pt_md_mutex;
|
||||
struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
|
||||
struct se_lun *sep_lun;
|
||||
struct se_portal_group *sep_tpg;
|
||||
struct list_head sep_alua_list;
|
||||
struct list_head sep_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_tpg_np {
|
||||
struct config_group tpg_np_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_portal_group {
|
||||
/* Type of target portal group, see transport_tpg_type_table */
|
||||
enum transport_tpg_type_table se_tpg_type;
|
||||
/* Number of ACLed Initiator Nodes for this TPG */
|
||||
u32 num_node_acls;
|
||||
/* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
|
||||
atomic_t tpg_pr_ref_count;
|
||||
/* Spinlock for adding/removing ACLed Nodes */
|
||||
spinlock_t acl_node_lock;
|
||||
/* Spinlock for adding/removing sessions */
|
||||
spinlock_t session_lock;
|
||||
spinlock_t tpg_lun_lock;
|
||||
/* Pointer to $FABRIC_MOD portal group */
|
||||
void *se_tpg_fabric_ptr;
|
||||
struct list_head se_tpg_list;
|
||||
/* linked list for initiator ACL list */
|
||||
struct list_head acl_node_list;
|
||||
struct se_lun *tpg_lun_list;
|
||||
struct se_lun tpg_virt_lun0;
|
||||
/* List of TCM sessions assoicated wth this TPG */
|
||||
struct list_head tpg_sess_list;
|
||||
/* Pointer to $FABRIC_MOD dependent code */
|
||||
struct target_core_fabric_ops *se_tpg_tfo;
|
||||
struct se_wwn *se_tpg_wwn;
|
||||
struct config_group tpg_group;
|
||||
struct config_group *tpg_default_groups[6];
|
||||
struct config_group tpg_lun_group;
|
||||
struct config_group tpg_np_group;
|
||||
struct config_group tpg_acl_group;
|
||||
struct config_group tpg_attrib_group;
|
||||
struct config_group tpg_param_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define TPG_TFO(se_tpg) ((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo)
|
||||
|
||||
struct se_wwn {
|
||||
struct target_fabric_configfs *wwn_tf;
|
||||
struct config_group wwn_group;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
struct se_global {
|
||||
u16 alua_lu_gps_counter;
|
||||
int g_sub_api_initialized;
|
||||
u32 in_shutdown;
|
||||
u32 alua_lu_gps_count;
|
||||
u32 g_hba_id_counter;
|
||||
struct config_group target_core_hbagroup;
|
||||
struct config_group alua_group;
|
||||
struct config_group alua_lu_gps_group;
|
||||
struct list_head g_lu_gps_list;
|
||||
struct list_head g_se_tpg_list;
|
||||
struct list_head g_hba_list;
|
||||
struct list_head g_se_dev_list;
|
||||
struct se_hba *g_lun0_hba;
|
||||
struct se_subsystem_dev *g_lun0_su_dev;
|
||||
struct se_device *g_lun0_dev;
|
||||
struct t10_alua_lu_gp *default_lu_gp;
|
||||
spinlock_t g_device_lock;
|
||||
spinlock_t hba_lock;
|
||||
spinlock_t se_tpg_lock;
|
||||
spinlock_t lu_gps_lock;
|
||||
spinlock_t plugin_class_lock;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#endif /* TARGET_CORE_BASE_H */
|
||||
52
include/target/target_core_configfs.h
Normal file
52
include/target/target_core_configfs.h
Normal file
@@ -0,0 +1,52 @@
|
||||
#define TARGET_CORE_CONFIGFS_VERSION TARGET_CORE_MOD_VERSION
|
||||
|
||||
#define TARGET_CORE_CONFIG_ROOT "/sys/kernel/config"
|
||||
|
||||
#define TARGET_CORE_NAME_MAX_LEN 64
|
||||
#define TARGET_FABRIC_NAME_SIZE 32
|
||||
|
||||
extern struct target_fabric_configfs *target_fabric_configfs_init(
|
||||
struct module *, const char *);
|
||||
extern void target_fabric_configfs_free(struct target_fabric_configfs *);
|
||||
extern int target_fabric_configfs_register(struct target_fabric_configfs *);
|
||||
extern void target_fabric_configfs_deregister(struct target_fabric_configfs *);
|
||||
|
||||
struct target_fabric_configfs_template {
|
||||
struct config_item_type tfc_discovery_cit;
|
||||
struct config_item_type tfc_wwn_cit;
|
||||
struct config_item_type tfc_tpg_cit;
|
||||
struct config_item_type tfc_tpg_base_cit;
|
||||
struct config_item_type tfc_tpg_lun_cit;
|
||||
struct config_item_type tfc_tpg_port_cit;
|
||||
struct config_item_type tfc_tpg_np_cit;
|
||||
struct config_item_type tfc_tpg_np_base_cit;
|
||||
struct config_item_type tfc_tpg_attrib_cit;
|
||||
struct config_item_type tfc_tpg_param_cit;
|
||||
struct config_item_type tfc_tpg_nacl_cit;
|
||||
struct config_item_type tfc_tpg_nacl_base_cit;
|
||||
struct config_item_type tfc_tpg_nacl_attrib_cit;
|
||||
struct config_item_type tfc_tpg_nacl_auth_cit;
|
||||
struct config_item_type tfc_tpg_nacl_param_cit;
|
||||
struct config_item_type tfc_tpg_mappedlun_cit;
|
||||
};
|
||||
|
||||
struct target_fabric_configfs {
|
||||
char tf_name[TARGET_FABRIC_NAME_SIZE];
|
||||
atomic_t tf_access_cnt;
|
||||
struct list_head tf_list;
|
||||
struct config_group tf_group;
|
||||
struct config_group tf_disc_group;
|
||||
struct config_group *tf_default_groups[2];
|
||||
/* Pointer to fabric's config_item */
|
||||
struct config_item *tf_fabric;
|
||||
/* Passed from fabric modules */
|
||||
struct config_item_type *tf_fabric_cit;
|
||||
/* Pointer to target core subsystem */
|
||||
struct configfs_subsystem *tf_subsys;
|
||||
/* Pointer to fabric's struct module */
|
||||
struct module *tf_module;
|
||||
struct target_core_fabric_ops tf_ops;
|
||||
struct target_fabric_configfs_template tf_cit_tmpl;
|
||||
};
|
||||
|
||||
#define TF_CIT_TMPL(tf) (&(tf)->tf_cit_tmpl)
|
||||
61
include/target/target_core_device.h
Normal file
61
include/target/target_core_device.h
Normal file
@@ -0,0 +1,61 @@
|
||||
#ifndef TARGET_CORE_DEVICE_H
|
||||
#define TARGET_CORE_DEVICE_H
|
||||
|
||||
extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32);
|
||||
extern int transport_get_lun_for_tmr(struct se_cmd *, u32);
|
||||
extern struct se_dev_entry *core_get_se_deve_from_rtpi(
|
||||
struct se_node_acl *, u16);
|
||||
extern int core_free_device_list_for_node(struct se_node_acl *,
|
||||
struct se_portal_group *);
|
||||
extern void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *);
|
||||
extern void core_update_device_list_access(u32, u32, struct se_node_acl *);
|
||||
extern int core_update_device_list_for_node(struct se_lun *, struct se_lun_acl *, u32,
|
||||
u32, struct se_node_acl *,
|
||||
struct se_portal_group *, int);
|
||||
extern void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
|
||||
extern int core_dev_export(struct se_device *, struct se_portal_group *,
|
||||
struct se_lun *);
|
||||
extern void core_dev_unexport(struct se_device *, struct se_portal_group *,
|
||||
struct se_lun *);
|
||||
extern int transport_core_report_lun_response(struct se_cmd *);
|
||||
extern void se_release_device_for_hba(struct se_device *);
|
||||
extern void se_release_vpd_for_dev(struct se_device *);
|
||||
extern void se_clear_dev_ports(struct se_device *);
|
||||
extern int se_free_virtual_device(struct se_device *, struct se_hba *);
|
||||
extern int se_dev_check_online(struct se_device *);
|
||||
extern int se_dev_check_shutdown(struct se_device *);
|
||||
extern void se_dev_set_default_attribs(struct se_device *, struct se_dev_limits *);
|
||||
extern int se_dev_set_task_timeout(struct se_device *, u32);
|
||||
extern int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
|
||||
extern int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
|
||||
extern int se_dev_set_unmap_granularity(struct se_device *, u32);
|
||||
extern int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
|
||||
extern int se_dev_set_emulate_dpo(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_fua_write(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_fua_read(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_write_cache(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_tas(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_tpu(struct se_device *, int);
|
||||
extern int se_dev_set_emulate_tpws(struct se_device *, int);
|
||||
extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
|
||||
extern int se_dev_set_queue_depth(struct se_device *, u32);
|
||||
extern int se_dev_set_max_sectors(struct se_device *, u32);
|
||||
extern int se_dev_set_optimal_sectors(struct se_device *, u32);
|
||||
extern int se_dev_set_block_size(struct se_device *, u32);
|
||||
extern struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *,
|
||||
struct se_device *, u32);
|
||||
extern int core_dev_del_lun(struct se_portal_group *, u32);
|
||||
extern struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
|
||||
extern struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
|
||||
u32, char *, int *);
|
||||
extern int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
|
||||
struct se_lun_acl *, u32, u32);
|
||||
extern int core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
|
||||
struct se_lun *, struct se_lun_acl *);
|
||||
extern void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
|
||||
struct se_lun_acl *lacl);
|
||||
extern int core_dev_setup_virtual_lun0(void);
|
||||
extern void core_dev_release_virtual_lun0(void);
|
||||
|
||||
#endif /* TARGET_CORE_DEVICE_H */
|
||||
106
include/target/target_core_fabric_configfs.h
Normal file
106
include/target/target_core_fabric_configfs.h
Normal file
@@ -0,0 +1,106 @@
|
||||
/*
|
||||
* Used for tfc_wwn_cit attributes
|
||||
*/
|
||||
|
||||
#include <target/configfs_macros.h>
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_nacl_attrib, se_node_acl);
|
||||
#define TF_NACL_ATTRIB_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_nacl_attrib_attribute _fabric##_nacl_attrib_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_nacl_attrib_show_##_name, \
|
||||
_fabric##_nacl_attrib_store_##_name);
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_nacl_auth, se_node_acl);
|
||||
#define TF_NACL_AUTH_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_nacl_auth_show_##_name, \
|
||||
_fabric##_nacl_auth_store_##_name);
|
||||
|
||||
#define TF_NACL_AUTH_ATTR_RO(_fabric, _name) \
|
||||
static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \
|
||||
__CONFIGFS_EATTR_RO(_name, \
|
||||
_fabric##_nacl_auth_show_##_name);
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_nacl_param, se_node_acl);
|
||||
#define TF_NACL_PARAM_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_nacl_param_show_##_name, \
|
||||
_fabric##_nacl_param_store_##_name);
|
||||
|
||||
#define TF_NACL_PARAM_ATTR_RO(_fabric, _name) \
|
||||
static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \
|
||||
__CONFIGFS_EATTR_RO(_name, \
|
||||
_fabric##_nacl_param_show_##_name);
|
||||
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_nacl_base, se_node_acl);
|
||||
#define TF_NACL_BASE_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_nacl_show_##_name, \
|
||||
_fabric##_nacl_store_##_name);
|
||||
|
||||
#define TF_NACL_BASE_ATTR_RO(_fabric, _name) \
|
||||
static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \
|
||||
__CONFIGFS_EATTR_RO(_name, \
|
||||
_fabric##_nacl_show_##_name);
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_np_base, se_tpg_np);
|
||||
#define TF_NP_BASE_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_np_base_attribute _fabric##_np_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_np_show_##_name, \
|
||||
_fabric##_np_store_##_name);
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_tpg_attrib, se_portal_group);
|
||||
#define TF_TPG_ATTRIB_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_tpg_attrib_show_##_name, \
|
||||
_fabric##_tpg_attrib_store_##_name);
|
||||
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group);
|
||||
#define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_tpg_param_attribute _fabric##_tpg_param_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_tpg_param_show_##_name, \
|
||||
_fabric##_tpg_param_store_##_name);
|
||||
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_tpg, se_portal_group);
|
||||
#define TF_TPG_BASE_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_tpg_show_##_name, \
|
||||
_fabric##_tpg_store_##_name);
|
||||
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_wwn, target_fabric_configfs);
|
||||
#define TF_WWN_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_wwn_show_attr_##_name, \
|
||||
_fabric##_wwn_store_attr_##_name);
|
||||
|
||||
#define TF_WWN_ATTR_RO(_fabric, _name) \
|
||||
static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \
|
||||
__CONFIGFS_EATTR_RO(_name, \
|
||||
_fabric##_wwn_show_attr_##_name);
|
||||
|
||||
CONFIGFS_EATTR_STRUCT(target_fabric_discovery, target_fabric_configfs);
|
||||
#define TF_DISC_ATTR(_fabric, _name, _mode) \
|
||||
static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
|
||||
__CONFIGFS_EATTR(_name, _mode, \
|
||||
_fabric##_disc_show_##_name, \
|
||||
_fabric##_disc_store_##_name);
|
||||
|
||||
#define TF_DISC_ATTR_RO(_fabric, _name) \
|
||||
static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \
|
||||
__CONFIGFS_EATTR_RO(_name, \
|
||||
_fabric##_disc_show_##_name);
|
||||
|
||||
extern int target_fabric_setup_cits(struct target_fabric_configfs *);
|
||||
28
include/target/target_core_fabric_lib.h
Normal file
28
include/target/target_core_fabric_lib.h
Normal file
@@ -0,0 +1,28 @@
|
||||
#ifndef TARGET_CORE_FABRIC_LIB_H
|
||||
#define TARGET_CORE_FABRIC_LIB_H
|
||||
|
||||
extern u8 sas_get_fabric_proto_ident(struct se_portal_group *);
|
||||
extern u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *, unsigned char *);
|
||||
extern u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *);
|
||||
extern char *sas_parse_pr_out_transport_id(struct se_portal_group *,
|
||||
const char *, u32 *, char **);
|
||||
|
||||
extern u8 fc_get_fabric_proto_ident(struct se_portal_group *);
|
||||
extern u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *, unsigned char *);
|
||||
extern u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *);
|
||||
extern char *fc_parse_pr_out_transport_id(struct se_portal_group *,
|
||||
const char *, u32 *, char **);
|
||||
|
||||
extern u8 iscsi_get_fabric_proto_ident(struct se_portal_group *);
|
||||
extern u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *, unsigned char *);
|
||||
extern u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *);
|
||||
extern char *iscsi_parse_pr_out_transport_id(struct se_portal_group *,
|
||||
const char *, u32 *, char **);
|
||||
|
||||
#endif /* TARGET_CORE_FABRIC_LIB_H */
|
||||
100
include/target/target_core_fabric_ops.h
Normal file
100
include/target/target_core_fabric_ops.h
Normal file
@@ -0,0 +1,100 @@
|
||||
/* Defined in target_core_configfs.h */
|
||||
struct target_fabric_configfs;
|
||||
|
||||
struct target_core_fabric_ops {
|
||||
struct configfs_subsystem *tf_subsys;
|
||||
/*
|
||||
* Optional to signal struct se_task->task_sg[] padding entries
|
||||
* for scatterlist chaining using transport_do_task_sg_link(),
|
||||
* disabled by default
|
||||
*/
|
||||
int task_sg_chaining:1;
|
||||
char *(*get_fabric_name)(void);
|
||||
u8 (*get_fabric_proto_ident)(struct se_portal_group *);
|
||||
char *(*tpg_get_wwn)(struct se_portal_group *);
|
||||
u16 (*tpg_get_tag)(struct se_portal_group *);
|
||||
u32 (*tpg_get_default_depth)(struct se_portal_group *);
|
||||
u32 (*tpg_get_pr_transport_id)(struct se_portal_group *,
|
||||
struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *,
|
||||
unsigned char *);
|
||||
u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *,
|
||||
struct se_node_acl *,
|
||||
struct t10_pr_registration *, int *);
|
||||
char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *,
|
||||
const char *, u32 *, char **);
|
||||
int (*tpg_check_demo_mode)(struct se_portal_group *);
|
||||
int (*tpg_check_demo_mode_cache)(struct se_portal_group *);
|
||||
int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *);
|
||||
int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *);
|
||||
struct se_node_acl *(*tpg_alloc_fabric_acl)(
|
||||
struct se_portal_group *);
|
||||
void (*tpg_release_fabric_acl)(struct se_portal_group *,
|
||||
struct se_node_acl *);
|
||||
u32 (*tpg_get_inst_index)(struct se_portal_group *);
|
||||
/*
|
||||
* Optional function pointer for TCM to perform command map
|
||||
* from TCM processing thread context, for those struct se_cmd
|
||||
* initally allocated in interrupt context.
|
||||
*/
|
||||
int (*new_cmd_map)(struct se_cmd *);
|
||||
/*
|
||||
* Optional function pointer for TCM fabric modules that use
|
||||
* Linux/NET sockets to allocate struct iovec array to struct se_cmd
|
||||
*/
|
||||
int (*alloc_cmd_iovecs)(struct se_cmd *);
|
||||
/*
|
||||
* Optional to release struct se_cmd and fabric dependent allocated
|
||||
* I/O descriptor in transport_cmd_check_stop()
|
||||
*/
|
||||
void (*check_stop_free)(struct se_cmd *);
|
||||
void (*release_cmd_to_pool)(struct se_cmd *);
|
||||
void (*release_cmd_direct)(struct se_cmd *);
|
||||
/*
|
||||
* Called with spin_lock_bh(struct se_portal_group->session_lock held.
|
||||
*/
|
||||
int (*shutdown_session)(struct se_session *);
|
||||
void (*close_session)(struct se_session *);
|
||||
void (*stop_session)(struct se_session *, int, int);
|
||||
void (*fall_back_to_erl0)(struct se_session *);
|
||||
int (*sess_logged_in)(struct se_session *);
|
||||
u32 (*sess_get_index)(struct se_session *);
|
||||
/*
|
||||
* Used only for SCSI fabrics that contain multi-value TransportIDs
|
||||
* (like iSCSI). All other SCSI fabrics should set this to NULL.
|
||||
*/
|
||||
u32 (*sess_get_initiator_sid)(struct se_session *,
|
||||
unsigned char *, u32);
|
||||
int (*write_pending)(struct se_cmd *);
|
||||
int (*write_pending_status)(struct se_cmd *);
|
||||
void (*set_default_node_attributes)(struct se_node_acl *);
|
||||
u32 (*get_task_tag)(struct se_cmd *);
|
||||
int (*get_cmd_state)(struct se_cmd *);
|
||||
void (*new_cmd_failure)(struct se_cmd *);
|
||||
int (*queue_data_in)(struct se_cmd *);
|
||||
int (*queue_status)(struct se_cmd *);
|
||||
int (*queue_tm_rsp)(struct se_cmd *);
|
||||
u16 (*set_fabric_sense_len)(struct se_cmd *, u32);
|
||||
u16 (*get_fabric_sense_len)(void);
|
||||
int (*is_state_remove)(struct se_cmd *);
|
||||
u64 (*pack_lun)(unsigned int);
|
||||
/*
|
||||
* fabric module calls for target_core_fabric_configfs.c
|
||||
*/
|
||||
struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *,
|
||||
struct config_group *, const char *);
|
||||
void (*fabric_drop_wwn)(struct se_wwn *);
|
||||
struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *,
|
||||
struct config_group *, const char *);
|
||||
void (*fabric_drop_tpg)(struct se_portal_group *);
|
||||
int (*fabric_post_link)(struct se_portal_group *,
|
||||
struct se_lun *);
|
||||
void (*fabric_pre_unlink)(struct se_portal_group *,
|
||||
struct se_lun *);
|
||||
struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *,
|
||||
struct config_group *, const char *);
|
||||
void (*fabric_drop_np)(struct se_tpg_np *);
|
||||
struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *,
|
||||
struct config_group *, const char *);
|
||||
void (*fabric_drop_nodeacl)(struct se_node_acl *);
|
||||
};
|
||||
43
include/target/target_core_tmr.h
Normal file
43
include/target/target_core_tmr.h
Normal file
@@ -0,0 +1,43 @@
|
||||
#ifndef TARGET_CORE_TMR_H
|
||||
#define TARGET_CORE_TMR_H
|
||||
|
||||
/* task management function values */
|
||||
#ifdef ABORT_TASK
|
||||
#undef ABORT_TASK
|
||||
#endif /* ABORT_TASK */
|
||||
#define ABORT_TASK 1
|
||||
#ifdef ABORT_TASK_SET
|
||||
#undef ABORT_TASK_SET
|
||||
#endif /* ABORT_TASK_SET */
|
||||
#define ABORT_TASK_SET 2
|
||||
#ifdef CLEAR_ACA
|
||||
#undef CLEAR_ACA
|
||||
#endif /* CLEAR_ACA */
|
||||
#define CLEAR_ACA 3
|
||||
#ifdef CLEAR_TASK_SET
|
||||
#undef CLEAR_TASK_SET
|
||||
#endif /* CLEAR_TASK_SET */
|
||||
#define CLEAR_TASK_SET 4
|
||||
#define LUN_RESET 5
|
||||
#define TARGET_WARM_RESET 6
|
||||
#define TARGET_COLD_RESET 7
|
||||
#define TASK_REASSIGN 8
|
||||
|
||||
/* task management response values */
|
||||
#define TMR_FUNCTION_COMPLETE 0
|
||||
#define TMR_TASK_DOES_NOT_EXIST 1
|
||||
#define TMR_LUN_DOES_NOT_EXIST 2
|
||||
#define TMR_TASK_STILL_ALLEGIANT 3
|
||||
#define TMR_TASK_FAILOVER_NOT_SUPPORTED 4
|
||||
#define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5
|
||||
#define TMR_FUNCTION_AUTHORIZATION_FAILED 6
|
||||
#define TMR_FUNCTION_REJECTED 255
|
||||
|
||||
extern struct kmem_cache *se_tmr_req_cache;
|
||||
|
||||
extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8);
|
||||
extern void core_tmr_release_req(struct se_tmr_req *);
|
||||
extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
|
||||
struct list_head *, struct se_cmd *);
|
||||
|
||||
#endif /* TARGET_CORE_TMR_H */
|
||||
35
include/target/target_core_tpg.h
Normal file
35
include/target/target_core_tpg.h
Normal file
@@ -0,0 +1,35 @@
|
||||
#ifndef TARGET_CORE_TPG_H
|
||||
#define TARGET_CORE_TPG_H
|
||||
|
||||
extern struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
|
||||
const char *);
|
||||
extern struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
|
||||
unsigned char *);
|
||||
extern void core_tpg_add_node_to_devs(struct se_node_acl *,
|
||||
struct se_portal_group *);
|
||||
extern struct se_node_acl *core_tpg_check_initiator_node_acl(
|
||||
struct se_portal_group *,
|
||||
unsigned char *);
|
||||
extern void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
|
||||
extern void core_tpg_wait_for_mib_ref(struct se_node_acl *);
|
||||
extern void core_tpg_clear_object_luns(struct se_portal_group *);
|
||||
extern struct se_node_acl *core_tpg_add_initiator_node_acl(
|
||||
struct se_portal_group *,
|
||||
struct se_node_acl *,
|
||||
const char *, u32);
|
||||
extern int core_tpg_del_initiator_node_acl(struct se_portal_group *,
|
||||
struct se_node_acl *, int);
|
||||
extern int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *,
|
||||
unsigned char *, u32, int);
|
||||
extern int core_tpg_register(struct target_core_fabric_ops *,
|
||||
struct se_wwn *,
|
||||
struct se_portal_group *, void *,
|
||||
int);
|
||||
extern int core_tpg_deregister(struct se_portal_group *);
|
||||
extern struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32);
|
||||
extern int core_tpg_post_addlun(struct se_portal_group *, struct se_lun *, u32,
|
||||
void *);
|
||||
extern struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32, int *);
|
||||
extern int core_tpg_post_dellun(struct se_portal_group *, struct se_lun *);
|
||||
|
||||
#endif /* TARGET_CORE_TPG_H */
|
||||
351
include/target/target_core_transport.h
Normal file
351
include/target/target_core_transport.h
Normal file
@@ -0,0 +1,351 @@
|
||||
#ifndef TARGET_CORE_TRANSPORT_H
|
||||
#define TARGET_CORE_TRANSPORT_H
|
||||
|
||||
#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
|
||||
|
||||
/* Attempts before moving from SHORT to LONG */
|
||||
#define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3
|
||||
#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */
|
||||
#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */
|
||||
|
||||
#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
|
||||
|
||||
#define PYX_TRANSPORT_SENT_TO_TRANSPORT 0
|
||||
#define PYX_TRANSPORT_WRITE_PENDING 1
|
||||
|
||||
#define PYX_TRANSPORT_UNKNOWN_SAM_OPCODE -1
|
||||
#define PYX_TRANSPORT_HBA_QUEUE_FULL -2
|
||||
#define PYX_TRANSPORT_REQ_TOO_MANY_SECTORS -3
|
||||
#define PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES -4
|
||||
#define PYX_TRANSPORT_INVALID_CDB_FIELD -5
|
||||
#define PYX_TRANSPORT_INVALID_PARAMETER_LIST -6
|
||||
#define PYX_TRANSPORT_LU_COMM_FAILURE -7
|
||||
#define PYX_TRANSPORT_UNKNOWN_MODE_PAGE -8
|
||||
#define PYX_TRANSPORT_WRITE_PROTECTED -9
|
||||
#define PYX_TRANSPORT_TASK_TIMEOUT -10
|
||||
#define PYX_TRANSPORT_RESERVATION_CONFLICT -11
|
||||
#define PYX_TRANSPORT_ILLEGAL_REQUEST -12
|
||||
#define PYX_TRANSPORT_USE_SENSE_REASON -13
|
||||
|
||||
#ifndef SAM_STAT_RESERVATION_CONFLICT
|
||||
#define SAM_STAT_RESERVATION_CONFLICT 0x18
|
||||
#endif
|
||||
|
||||
#define TRANSPORT_PLUGIN_FREE 0
|
||||
#define TRANSPORT_PLUGIN_REGISTERED 1
|
||||
|
||||
#define TRANSPORT_PLUGIN_PHBA_PDEV 1
|
||||
#define TRANSPORT_PLUGIN_VHBA_PDEV 2
|
||||
#define TRANSPORT_PLUGIN_VHBA_VDEV 3
|
||||
|
||||
/* For SE OBJ Plugins, in seconds */
|
||||
#define TRANSPORT_TIMEOUT_TUR 10
|
||||
#define TRANSPORT_TIMEOUT_TYPE_DISK 60
|
||||
#define TRANSPORT_TIMEOUT_TYPE_ROM 120
|
||||
#define TRANSPORT_TIMEOUT_TYPE_TAPE 600
|
||||
#define TRANSPORT_TIMEOUT_TYPE_OTHER 300
|
||||
|
||||
/* For se_task->task_state_flags */
|
||||
#define TSF_EXCEPTION_CLEARED 0x01
|
||||
|
||||
/*
|
||||
* struct se_subsystem_dev->su_dev_flags
|
||||
*/
|
||||
#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001
|
||||
#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002
|
||||
#define SDF_USING_UDEV_PATH 0x00000004
|
||||
#define SDF_USING_ALIAS 0x00000008
|
||||
|
||||
/*
|
||||
* struct se_device->dev_flags
|
||||
*/
|
||||
#define DF_READ_ONLY 0x00000001
|
||||
#define DF_SPC2_RESERVATIONS 0x00000002
|
||||
#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004
|
||||
|
||||
/* struct se_dev_attrib sanity values */
|
||||
/* 10 Minutes */
|
||||
#define DA_TASK_TIMEOUT_MAX 600
|
||||
/* Default max_unmap_lba_count */
|
||||
#define DA_MAX_UNMAP_LBA_COUNT 0
|
||||
/* Default max_unmap_block_desc_count */
|
||||
#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
|
||||
/* Default unmap_granularity */
|
||||
#define DA_UNMAP_GRANULARITY_DEFAULT 0
|
||||
/* Default unmap_granularity_alignment */
|
||||
#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
|
||||
/* Emulation for Direct Page Out */
|
||||
#define DA_EMULATE_DPO 0
|
||||
/* Emulation for Forced Unit Access WRITEs */
|
||||
#define DA_EMULATE_FUA_WRITE 1
|
||||
/* Emulation for Forced Unit Access READs */
|
||||
#define DA_EMULATE_FUA_READ 0
|
||||
/* Emulation for WriteCache and SYNCHRONIZE_CACHE */
|
||||
#define DA_EMULATE_WRITE_CACHE 0
|
||||
/* Emulation for UNIT ATTENTION Interlock Control */
|
||||
#define DA_EMULATE_UA_INTLLCK_CTRL 0
|
||||
/* Emulation for TASK_ABORTED status (TAS) by default */
|
||||
#define DA_EMULATE_TAS 1
|
||||
/* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
|
||||
#define DA_EMULATE_TPU 0
|
||||
/*
|
||||
* Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
|
||||
* block/blk-lib.c:blkdev_issue_discard()
|
||||
*/
|
||||
#define DA_EMULATE_TPWS 0
|
||||
/* No Emulation for PSCSI by default */
|
||||
#define DA_EMULATE_RESERVATIONS 0
|
||||
/* No Emulation for PSCSI by default */
|
||||
#define DA_EMULATE_ALUA 0
|
||||
/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
|
||||
#define DA_ENFORCE_PR_ISIDS 1
|
||||
#define DA_STATUS_MAX_SECTORS_MIN 16
|
||||
#define DA_STATUS_MAX_SECTORS_MAX 8192
|
||||
|
||||
#define SE_MODE_PAGE_BUF 512
|
||||
|
||||
#define MOD_MAX_SECTORS(ms, bs) (ms % (PAGE_SIZE / bs))
|
||||
|
||||
struct se_mem;
|
||||
struct se_subsystem_api;
|
||||
|
||||
extern int init_se_global(void);
|
||||
extern void release_se_global(void);
|
||||
extern void transport_init_queue_obj(struct se_queue_obj *);
|
||||
extern int transport_subsystem_check_init(void);
|
||||
extern int transport_subsystem_register(struct se_subsystem_api *);
|
||||
extern void transport_subsystem_release(struct se_subsystem_api *);
|
||||
extern void transport_load_plugins(void);
|
||||
extern struct se_session *transport_init_session(void);
|
||||
extern void __transport_register_session(struct se_portal_group *,
|
||||
struct se_node_acl *,
|
||||
struct se_session *, void *);
|
||||
extern void transport_register_session(struct se_portal_group *,
|
||||
struct se_node_acl *,
|
||||
struct se_session *, void *);
|
||||
extern void transport_free_session(struct se_session *);
|
||||
extern void transport_deregister_session_configfs(struct se_session *);
|
||||
extern void transport_deregister_session(struct se_session *);
|
||||
extern void transport_cmd_finish_abort(struct se_cmd *, int);
|
||||
extern void transport_cmd_finish_abort_tmr(struct se_cmd *);
|
||||
extern void transport_complete_sync_cache(struct se_cmd *, int);
|
||||
extern void transport_complete_task(struct se_task *, int);
|
||||
extern void transport_add_task_to_execute_queue(struct se_task *,
|
||||
struct se_task *,
|
||||
struct se_device *);
|
||||
unsigned char *transport_dump_cmd_direction(struct se_cmd *);
|
||||
extern void transport_dump_dev_state(struct se_device *, char *, int *);
|
||||
extern void transport_dump_dev_info(struct se_device *, struct se_lun *,
|
||||
unsigned long long, char *, int *);
|
||||
extern void transport_dump_vpd_proto_id(struct t10_vpd *,
|
||||
unsigned char *, int);
|
||||
extern void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
|
||||
extern int transport_dump_vpd_assoc(struct t10_vpd *,
|
||||
unsigned char *, int);
|
||||
extern int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
|
||||
extern int transport_dump_vpd_ident_type(struct t10_vpd *,
|
||||
unsigned char *, int);
|
||||
extern int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
|
||||
extern int transport_dump_vpd_ident(struct t10_vpd *,
|
||||
unsigned char *, int);
|
||||
extern int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
|
||||
extern struct se_device *transport_add_device_to_core_hba(struct se_hba *,
|
||||
struct se_subsystem_api *,
|
||||
struct se_subsystem_dev *, u32,
|
||||
void *, struct se_dev_limits *,
|
||||
const char *, const char *);
|
||||
extern void transport_device_setup_cmd(struct se_cmd *);
|
||||
extern void transport_init_se_cmd(struct se_cmd *,
|
||||
struct target_core_fabric_ops *,
|
||||
struct se_session *, u32, int, int,
|
||||
unsigned char *);
|
||||
extern void transport_free_se_cmd(struct se_cmd *);
|
||||
extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
|
||||
extern int transport_generic_handle_cdb(struct se_cmd *);
|
||||
extern int transport_generic_handle_cdb_map(struct se_cmd *);
|
||||
extern int transport_generic_handle_data(struct se_cmd *);
|
||||
extern void transport_new_cmd_failure(struct se_cmd *);
|
||||
extern int transport_generic_handle_tmr(struct se_cmd *);
|
||||
extern void __transport_stop_task_timer(struct se_task *, unsigned long *);
|
||||
extern unsigned char transport_asciihex_to_binaryhex(unsigned char val[2]);
|
||||
extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32,
|
||||
struct scatterlist *, u32);
|
||||
extern int transport_clear_lun_from_sessions(struct se_lun *);
|
||||
extern int transport_check_aborted_status(struct se_cmd *, int);
|
||||
extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
|
||||
extern void transport_send_task_abort(struct se_cmd *);
|
||||
extern void transport_release_cmd_to_pool(struct se_cmd *);
|
||||
extern void transport_generic_free_cmd(struct se_cmd *, int, int, int);
|
||||
extern void transport_generic_wait_for_cmds(struct se_cmd *, int);
|
||||
extern u32 transport_calc_sg_num(struct se_task *, struct se_mem *, u32);
|
||||
extern int transport_map_mem_to_sg(struct se_task *, struct list_head *,
|
||||
void *, struct se_mem *,
|
||||
struct se_mem **, u32 *, u32 *);
|
||||
extern void transport_do_task_sg_chain(struct se_cmd *);
|
||||
extern void transport_generic_process_write(struct se_cmd *);
|
||||
extern int transport_generic_do_tmr(struct se_cmd *);
|
||||
/* From target_core_alua.c */
|
||||
extern int core_alua_check_nonop_delay(struct se_cmd *);
|
||||
|
||||
/*
|
||||
* Each se_transport_task_t can have N number of possible struct se_task's
|
||||
* for the storage transport(s) to possibly execute.
|
||||
* Used primarily for splitting up CDBs that exceed the physical storage
|
||||
* HBA's maximum sector count per task.
|
||||
*/
|
||||
struct se_mem {
|
||||
struct page *se_page;
|
||||
u32 se_len;
|
||||
u32 se_off;
|
||||
struct list_head se_list;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
/*
|
||||
* Each type of disk transport supported MUST have a template defined
|
||||
* within its .h file.
|
||||
*/
|
||||
struct se_subsystem_api {
|
||||
/*
|
||||
* The Name. :-)
|
||||
*/
|
||||
char name[16];
|
||||
/*
|
||||
* Transport Type.
|
||||
*/
|
||||
u8 transport_type;
|
||||
/*
|
||||
* struct module for struct se_hba references
|
||||
*/
|
||||
struct module *owner;
|
||||
/*
|
||||
* Used for global se_subsystem_api list_head
|
||||
*/
|
||||
struct list_head sub_api_list;
|
||||
/*
|
||||
* For SCF_SCSI_NON_DATA_CDB
|
||||
*/
|
||||
int (*cdb_none)(struct se_task *);
|
||||
/*
|
||||
* For SCF_SCSI_CONTROL_NONSG_IO_CDB
|
||||
*/
|
||||
int (*map_task_non_SG)(struct se_task *);
|
||||
/*
|
||||
* For SCF_SCSI_DATA_SG_IO_CDB and SCF_SCSI_CONTROL_SG_IO_CDB
|
||||
*/
|
||||
int (*map_task_SG)(struct se_task *);
|
||||
/*
|
||||
* attach_hba():
|
||||
*/
|
||||
int (*attach_hba)(struct se_hba *, u32);
|
||||
/*
|
||||
* detach_hba():
|
||||
*/
|
||||
void (*detach_hba)(struct se_hba *);
|
||||
/*
|
||||
* pmode_hba(): Used for TCM/pSCSI subsystem plugin HBA ->
|
||||
* Linux/SCSI struct Scsi_Host passthrough
|
||||
*/
|
||||
int (*pmode_enable_hba)(struct se_hba *, unsigned long);
|
||||
/*
|
||||
* allocate_virtdevice():
|
||||
*/
|
||||
void *(*allocate_virtdevice)(struct se_hba *, const char *);
|
||||
/*
|
||||
* create_virtdevice(): Only for Virtual HBAs
|
||||
*/
|
||||
struct se_device *(*create_virtdevice)(struct se_hba *,
|
||||
struct se_subsystem_dev *, void *);
|
||||
/*
|
||||
* free_device():
|
||||
*/
|
||||
void (*free_device)(void *);
|
||||
|
||||
/*
|
||||
* dpo_emulated():
|
||||
*/
|
||||
int (*dpo_emulated)(struct se_device *);
|
||||
/*
|
||||
* fua_write_emulated():
|
||||
*/
|
||||
int (*fua_write_emulated)(struct se_device *);
|
||||
/*
|
||||
* fua_read_emulated():
|
||||
*/
|
||||
int (*fua_read_emulated)(struct se_device *);
|
||||
/*
|
||||
* write_cache_emulated():
|
||||
*/
|
||||
int (*write_cache_emulated)(struct se_device *);
|
||||
/*
|
||||
* transport_complete():
|
||||
*
|
||||
* Use transport_generic_complete() for majority of DAS transport
|
||||
* drivers. Provided out of convenience.
|
||||
*/
|
||||
int (*transport_complete)(struct se_task *task);
|
||||
struct se_task *(*alloc_task)(struct se_cmd *);
|
||||
/*
|
||||
* do_task():
|
||||
*/
|
||||
int (*do_task)(struct se_task *);
|
||||
/*
|
||||
* Used by virtual subsystem plugins IBLOCK and FILEIO to emulate
|
||||
* UNMAP and WRITE_SAME_* w/ UNMAP=1 <-> Linux/Block Discard
|
||||
*/
|
||||
int (*do_discard)(struct se_device *, sector_t, u32);
|
||||
/*
|
||||
* Used by virtual subsystem plugins IBLOCK and FILEIO to emulate
|
||||
* SYNCHRONIZE_CACHE_* <-> Linux/Block blkdev_issue_flush()
|
||||
*/
|
||||
void (*do_sync_cache)(struct se_task *);
|
||||
/*
|
||||
* free_task():
|
||||
*/
|
||||
void (*free_task)(struct se_task *);
|
||||
/*
|
||||
* check_configfs_dev_params():
|
||||
*/
|
||||
ssize_t (*check_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *);
|
||||
/*
|
||||
* set_configfs_dev_params():
|
||||
*/
|
||||
ssize_t (*set_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *,
|
||||
const char *, ssize_t);
|
||||
/*
|
||||
* show_configfs_dev_params():
|
||||
*/
|
||||
ssize_t (*show_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *,
|
||||
char *);
|
||||
/*
|
||||
* get_cdb():
|
||||
*/
|
||||
unsigned char *(*get_cdb)(struct se_task *);
|
||||
/*
|
||||
* get_device_rev():
|
||||
*/
|
||||
u32 (*get_device_rev)(struct se_device *);
|
||||
/*
|
||||
* get_device_type():
|
||||
*/
|
||||
u32 (*get_device_type)(struct se_device *);
|
||||
/*
|
||||
* Get the sector_t from a subsystem backstore..
|
||||
*/
|
||||
sector_t (*get_blocks)(struct se_device *);
|
||||
/*
|
||||
* do_se_mem_map():
|
||||
*/
|
||||
int (*do_se_mem_map)(struct se_task *, struct list_head *, void *,
|
||||
struct se_mem *, struct se_mem **, u32 *, u32 *);
|
||||
/*
|
||||
* get_sense_buffer():
|
||||
*/
|
||||
unsigned char *(*get_sense_buffer)(struct se_task *);
|
||||
} ____cacheline_aligned;
|
||||
|
||||
#define TRANSPORT(dev) ((dev)->transport)
|
||||
#define HBA_TRANSPORT(hba) ((hba)->transport)
|
||||
|
||||
extern struct se_global *se_global;
|
||||
|
||||
#endif /* TARGET_CORE_TRANSPORT_H */
|
||||
Reference in New Issue
Block a user