diff options
author | Nicholas Bellinger <nab@linux-iscsi.org> | 2010-12-17 14:11:26 -0500 |
---|---|---|
committer | James Bottomley <James.Bottomley@suse.de> | 2011-01-14 11:12:29 -0500 |
commit | c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 (patch) | |
tree | 71c6344688bf56ea6aaf18c586ab69ff4f077ade /include/target | |
parent | f4013c3879d1bbd9f3ab8351185decd049502368 (diff) |
[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>
Diffstat (limited to 'include/target')
-rw-r--r-- | include/target/configfs_macros.h | 147 | ||||
-rw-r--r-- | include/target/target_core_base.h | 937 | ||||
-rw-r--r-- | include/target/target_core_configfs.h | 52 | ||||
-rw-r--r-- | include/target/target_core_device.h | 61 | ||||
-rw-r--r-- | include/target/target_core_fabric_configfs.h | 106 | ||||
-rw-r--r-- | include/target/target_core_fabric_lib.h | 28 | ||||
-rw-r--r-- | include/target/target_core_fabric_ops.h | 100 | ||||
-rw-r--r-- | include/target/target_core_tmr.h | 43 | ||||
-rw-r--r-- | include/target/target_core_tpg.h | 35 | ||||
-rw-r--r-- | include/target/target_core_transport.h | 351 |
10 files changed, 1860 insertions, 0 deletions
diff --git a/include/target/configfs_macros.h b/include/target/configfs_macros.h new file mode 100644 index 000000000000..7fe74608b437 --- /dev/null +++ b/include/target/configfs_macros.h | |||
@@ -0,0 +1,147 @@ | |||
1 | /* -*- mode: c; c-basic-offset: 8; -*- | ||
2 | * vim: noexpandtab sw=8 ts=8 sts=0: | ||
3 | * | ||
4 | * configfs_macros.h - extends macros for configfs | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or | ||
7 | * modify it under the terms of the GNU General Public | ||
8 | * License as published by the Free Software Foundation; either | ||
9 | * version 2 of the License, or (at your option) any later version. | ||
10 | * | ||
11 | * This program is distributed in the hope that it will be useful, | ||
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
14 | * General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public | ||
17 | * License along with this program; if not, write to the | ||
18 | * Free Software Foundation, Inc., 59 Temple Place - Suite 330, | ||
19 | * Boston, MA 021110-1307, USA. | ||
20 | * | ||
21 | * Based on sysfs: | ||
22 | * sysfs is Copyright (C) 2001, 2002, 2003 Patrick Mochel | ||
23 | * | ||
24 | * Based on kobject.h: | ||
25 | * Copyright (c) 2002-2003 Patrick Mochel | ||
26 | * Copyright (c) 2002-2003 Open Source Development Labs | ||
27 | * | ||
28 | * configfs Copyright (C) 2005 Oracle. All rights reserved. | ||
29 | * | ||
30 | * Added CONFIGFS_EATTR() macros from original configfs.h macros | ||
31 | * Copright (C) 2008-2009 Nicholas A. Bellinger <nab@linux-iscsi.org> | ||
32 | * | ||
33 | * Please read Documentation/filesystems/configfs.txt before using the | ||
34 | * configfs interface, ESPECIALLY the parts about reference counts and | ||
35 | * item destructors. | ||
36 | */ | ||
37 | |||
38 | #ifndef _CONFIGFS_MACROS_H_ | ||
39 | #define _CONFIGFS_MACROS_H_ | ||
40 | |||
41 | #include <linux/configfs.h> | ||
42 | |||
43 | /* | ||
44 | * Users often need to create attribute structures for their configurable | ||
45 | * attributes, containing a configfs_attribute member and function pointers | ||
46 | * for the show() and store() operations on that attribute. If they don't | ||
47 | * need anything else on the extended attribute structure, they can use | ||
48 | * this macro to define it. The argument _name isends up as | ||
49 | * 'struct _name_attribute, as well as names of to CONFIGFS_ATTR_OPS() below. | ||
50 | * The argument _item is the name of the structure containing the | ||
51 | * struct config_item or struct config_group structure members | ||
52 | */ | ||
53 | #define CONFIGFS_EATTR_STRUCT(_name, _item) \ | ||
54 | struct _name##_attribute { \ | ||
55 | struct configfs_attribute attr; \ | ||
56 | ssize_t (*show)(struct _item *, char *); \ | ||
57 | ssize_t (*store)(struct _item *, const char *, size_t); \ | ||
58 | } | ||
59 | |||
60 | /* | ||
61 | * With the extended attribute structure, users can use this macro | ||
62 | * (similar to sysfs' __ATTR) to make defining attributes easier. | ||
63 | * An example: | ||
64 | * #define MYITEM_EATTR(_name, _mode, _show, _store) \ | ||
65 | * struct myitem_attribute childless_attr_##_name = \ | ||
66 | * __CONFIGFS_EATTR(_name, _mode, _show, _store) | ||
67 | */ | ||
68 | #define __CONFIGFS_EATTR(_name, _mode, _show, _store) \ | ||
69 | { \ | ||
70 | .attr = { \ | ||
71 | .ca_name = __stringify(_name), \ | ||
72 | .ca_mode = _mode, \ | ||
73 | .ca_owner = THIS_MODULE, \ | ||
74 | }, \ | ||
75 | .show = _show, \ | ||
76 | .store = _store, \ | ||
77 | } | ||
78 | /* Here is a readonly version, only requiring a show() operation */ | ||
79 | #define __CONFIGFS_EATTR_RO(_name, _show) \ | ||
80 | { \ | ||
81 | .attr = { \ | ||
82 | .ca_name = __stringify(_name), \ | ||
83 | .ca_mode = 0444, \ | ||
84 | .ca_owner = THIS_MODULE, \ | ||
85 | }, \ | ||
86 | .show = _show, \ | ||
87 | } | ||
88 | |||
89 | /* | ||
90 | * With these extended attributes, the simple show_attribute() and | ||
91 | * store_attribute() operations need to call the show() and store() of the | ||
92 | * attributes. This is a common pattern, so we provide a macro to define | ||
93 | * them. The argument _name is the name of the attribute defined by | ||
94 | * CONFIGFS_ATTR_STRUCT(). The argument _item is the name of the structure | ||
95 | * containing the struct config_item or struct config_group structure member. | ||
96 | * The argument _item_member is the actual name of the struct config_* struct | ||
97 | * in your _item structure. Meaning my_structure->some_config_group. | ||
98 | * ^^_item^^^^^ ^^_item_member^^^ | ||
99 | * This macro expects the attributes to be named "struct <name>_attribute". | ||
100 | */ | ||
101 | #define CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member) \ | ||
102 | static struct _item *to_##_name(struct config_item *ci) \ | ||
103 | { \ | ||
104 | return (ci) ? container_of(to_config_group(ci), struct _item, \ | ||
105 | _item_member) : NULL; \ | ||
106 | } | ||
107 | |||
108 | #define CONFIGFS_EATTR_OPS_SHOW(_name, _item) \ | ||
109 | static ssize_t _name##_attr_show(struct config_item *item, \ | ||
110 | struct configfs_attribute *attr, \ | ||
111 | char *page) \ | ||
112 | { \ | ||
113 | struct _item *_item = to_##_name(item); \ | ||
114 | struct _name##_attribute * _name##_attr = \ | ||
115 | container_of(attr, struct _name##_attribute, attr); \ | ||
116 | ssize_t ret = 0; \ | ||
117 | \ | ||
118 | if (_name##_attr->show) \ | ||
119 | ret = _name##_attr->show(_item, page); \ | ||
120 | return ret; \ | ||
121 | } | ||
122 | |||
123 | #define CONFIGFS_EATTR_OPS_STORE(_name, _item) \ | ||
124 | static ssize_t _name##_attr_store(struct config_item *item, \ | ||
125 | struct configfs_attribute *attr, \ | ||
126 | const char *page, size_t count) \ | ||
127 | { \ | ||
128 | struct _item *_item = to_##_name(item); \ | ||
129 | struct _name##_attribute * _name##_attr = \ | ||
130 | container_of(attr, struct _name##_attribute, attr); \ | ||
131 | ssize_t ret = -EINVAL; \ | ||
132 | \ | ||
133 | if (_name##_attr->store) \ | ||
134 | ret = _name##_attr->store(_item, page, count); \ | ||
135 | return ret; \ | ||
136 | } | ||
137 | |||
138 | #define CONFIGFS_EATTR_OPS(_name, _item, _item_member) \ | ||
139 | CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \ | ||
140 | CONFIGFS_EATTR_OPS_SHOW(_name, _item); \ | ||
141 | CONFIGFS_EATTR_OPS_STORE(_name, _item); | ||
142 | |||
143 | #define CONFIGFS_EATTR_OPS_RO(_name, _item, _item_member) \ | ||
144 | CONFIGFS_EATTR_OPS_TO_FUNC(_name, _item, _item_member); \ | ||
145 | CONFIGFS_EATTR_OPS_SHOW(_name, _item); | ||
146 | |||
147 | #endif /* _CONFIGFS_MACROS_H_ */ | ||
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h new file mode 100644 index 000000000000..07fdfb6b9a9a --- /dev/null +++ b/include/target/target_core_base.h | |||
@@ -0,0 +1,937 @@ | |||
1 | #ifndef TARGET_CORE_BASE_H | ||
2 | #define TARGET_CORE_BASE_H | ||
3 | |||
4 | #include <linux/in.h> | ||
5 | #include <linux/configfs.h> | ||
6 | #include <linux/dma-mapping.h> | ||
7 | #include <linux/blkdev.h> | ||
8 | #include <scsi/scsi_cmnd.h> | ||
9 | #include <net/sock.h> | ||
10 | #include <net/tcp.h> | ||
11 | #include "target_core_mib.h" | ||
12 | |||
13 | #define TARGET_CORE_MOD_VERSION "v4.0.0-rc6" | ||
14 | #define SHUTDOWN_SIGS (sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGABRT)) | ||
15 | |||
16 | /* Used by transport_generic_allocate_iovecs() */ | ||
17 | #define TRANSPORT_IOV_DATA_BUFFER 5 | ||
18 | /* Maximum Number of LUNs per Target Portal Group */ | ||
19 | #define TRANSPORT_MAX_LUNS_PER_TPG 256 | ||
20 | /* | ||
21 | * By default we use 32-byte CDBs in TCM Core and subsystem plugin code. | ||
22 | * | ||
23 | * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and | ||
24 | * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use | ||
25 | * 16-byte CDBs by default and require an extra allocation for | ||
26 | * 32-byte CDBs to becasue of legacy issues. | ||
27 | * | ||
28 | * Within TCM Core there are no such legacy limitiations, so we go ahead | ||
29 | * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size() | ||
30 | * within all TCM Core and subsystem plugin code. | ||
31 | */ | ||
32 | #define TCM_MAX_COMMAND_SIZE 32 | ||
33 | /* | ||
34 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | ||
35 | * defined 96, but the real limit is 252 (or 260 including the header) | ||
36 | */ | ||
37 | #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE | ||
38 | /* Used by transport_send_check_condition_and_sense() */ | ||
39 | #define SPC_SENSE_KEY_OFFSET 2 | ||
40 | #define SPC_ASC_KEY_OFFSET 12 | ||
41 | #define SPC_ASCQ_KEY_OFFSET 13 | ||
42 | #define TRANSPORT_IQN_LEN 224 | ||
43 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | ||
44 | #define LU_GROUP_NAME_BUF 256 | ||
45 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | ||
46 | #define TG_PT_GROUP_NAME_BUF 256 | ||
47 | /* Used to parse VPD into struct t10_vpd */ | ||
48 | #define VPD_TMP_BUF_SIZE 128 | ||
49 | /* Used by transport_generic_cmd_sequencer() */ | ||
50 | #define READ_BLOCK_LEN 6 | ||
51 | #define READ_CAP_LEN 8 | ||
52 | #define READ_POSITION_LEN 20 | ||
53 | #define INQUIRY_LEN 36 | ||
54 | /* Used by transport_get_inquiry_vpd_serial() */ | ||
55 | #define INQUIRY_VPD_SERIAL_LEN 254 | ||
56 | /* Used by transport_get_inquiry_vpd_device_ident() */ | ||
57 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | ||
58 | |||
59 | /* struct se_hba->hba_flags */ | ||
60 | enum hba_flags_table { | ||
61 | HBA_FLAGS_INTERNAL_USE = 0x01, | ||
62 | HBA_FLAGS_PSCSI_MODE = 0x02, | ||
63 | }; | ||
64 | |||
65 | /* struct se_lun->lun_status */ | ||
66 | enum transport_lun_status_table { | ||
67 | TRANSPORT_LUN_STATUS_FREE = 0, | ||
68 | TRANSPORT_LUN_STATUS_ACTIVE = 1, | ||
69 | }; | ||
70 | |||
71 | /* struct se_portal_group->se_tpg_type */ | ||
72 | enum transport_tpg_type_table { | ||
73 | TRANSPORT_TPG_TYPE_NORMAL = 0, | ||
74 | TRANSPORT_TPG_TYPE_DISCOVERY = 1, | ||
75 | }; | ||
76 | |||
77 | /* Used for generate timer flags */ | ||
78 | enum timer_flags_table { | ||
79 | TF_RUNNING = 0x01, | ||
80 | TF_STOP = 0x02, | ||
81 | }; | ||
82 | |||
83 | /* Special transport agnostic struct se_cmd->t_states */ | ||
84 | enum transport_state_table { | ||
85 | TRANSPORT_NO_STATE = 0, | ||
86 | TRANSPORT_NEW_CMD = 1, | ||
87 | TRANSPORT_DEFERRED_CMD = 2, | ||
88 | TRANSPORT_WRITE_PENDING = 3, | ||
89 | TRANSPORT_PROCESS_WRITE = 4, | ||
90 | TRANSPORT_PROCESSING = 5, | ||
91 | TRANSPORT_COMPLETE_OK = 6, | ||
92 | TRANSPORT_COMPLETE_FAILURE = 7, | ||
93 | TRANSPORT_COMPLETE_TIMEOUT = 8, | ||
94 | TRANSPORT_PROCESS_TMR = 9, | ||
95 | TRANSPORT_TMR_COMPLETE = 10, | ||
96 | TRANSPORT_ISTATE_PROCESSING = 11, | ||
97 | TRANSPORT_ISTATE_PROCESSED = 12, | ||
98 | TRANSPORT_KILL = 13, | ||
99 | TRANSPORT_REMOVE = 14, | ||
100 | TRANSPORT_FREE = 15, | ||
101 | TRANSPORT_NEW_CMD_MAP = 16, | ||
102 | }; | ||
103 | |||
104 | /* Used for struct se_cmd->se_cmd_flags */ | ||
105 | enum se_cmd_flags_table { | ||
106 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | ||
107 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | ||
108 | SCF_EMULATED_TASK_SENSE = 0x00000004, | ||
109 | SCF_SCSI_DATA_SG_IO_CDB = 0x00000008, | ||
110 | SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010, | ||
111 | SCF_SCSI_CONTROL_NONSG_IO_CDB = 0x00000020, | ||
112 | SCF_SCSI_NON_DATA_CDB = 0x00000040, | ||
113 | SCF_SCSI_CDB_EXCEPTION = 0x00000080, | ||
114 | SCF_SCSI_RESERVATION_CONFLICT = 0x00000100, | ||
115 | SCF_CMD_PASSTHROUGH_NOALLOC = 0x00000200, | ||
116 | SCF_SE_CMD_FAILED = 0x00000400, | ||
117 | SCF_SE_LUN_CMD = 0x00000800, | ||
118 | SCF_SE_ALLOW_EOO = 0x00001000, | ||
119 | SCF_SE_DISABLE_ONLINE_CHECK = 0x00002000, | ||
120 | SCF_SENT_CHECK_CONDITION = 0x00004000, | ||
121 | SCF_OVERFLOW_BIT = 0x00008000, | ||
122 | SCF_UNDERFLOW_BIT = 0x00010000, | ||
123 | SCF_SENT_DELAYED_TAS = 0x00020000, | ||
124 | SCF_ALUA_NON_OPTIMIZED = 0x00040000, | ||
125 | SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000, | ||
126 | SCF_PASSTHROUGH_SG_TO_MEM = 0x00100000, | ||
127 | SCF_PASSTHROUGH_CONTIG_TO_SG = 0x00200000, | ||
128 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000, | ||
129 | SCF_EMULATE_SYNC_CACHE = 0x00800000, | ||
130 | SCF_EMULATE_CDB_ASYNC = 0x01000000, | ||
131 | SCF_EMULATE_SYNC_UNMAP = 0x02000000 | ||
132 | }; | ||
133 | |||
134 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ | ||
135 | enum transport_lunflags_table { | ||
136 | TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00, | ||
137 | TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01, | ||
138 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x02, | ||
139 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, | ||
140 | }; | ||
141 | |||
142 | /* struct se_device->dev_status */ | ||
143 | enum transport_device_status_table { | ||
144 | TRANSPORT_DEVICE_ACTIVATED = 0x01, | ||
145 | TRANSPORT_DEVICE_DEACTIVATED = 0x02, | ||
146 | TRANSPORT_DEVICE_QUEUE_FULL = 0x04, | ||
147 | TRANSPORT_DEVICE_SHUTDOWN = 0x08, | ||
148 | TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10, | ||
149 | TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20, | ||
150 | }; | ||
151 | |||
152 | /* | ||
153 | * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason | ||
154 | * to signal which ASC/ASCQ sense payload should be built. | ||
155 | */ | ||
156 | enum tcm_sense_reason_table { | ||
157 | TCM_NON_EXISTENT_LUN = 0x01, | ||
158 | TCM_UNSUPPORTED_SCSI_OPCODE = 0x02, | ||
159 | TCM_INCORRECT_AMOUNT_OF_DATA = 0x03, | ||
160 | TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04, | ||
161 | TCM_SERVICE_CRC_ERROR = 0x05, | ||
162 | TCM_SNACK_REJECTED = 0x06, | ||
163 | TCM_SECTOR_COUNT_TOO_MANY = 0x07, | ||
164 | TCM_INVALID_CDB_FIELD = 0x08, | ||
165 | TCM_INVALID_PARAMETER_LIST = 0x09, | ||
166 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a, | ||
167 | TCM_UNKNOWN_MODE_PAGE = 0x0b, | ||
168 | TCM_WRITE_PROTECTED = 0x0c, | ||
169 | TCM_CHECK_CONDITION_ABORT_CMD = 0x0d, | ||
170 | TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e, | ||
171 | TCM_CHECK_CONDITION_NOT_READY = 0x0f, | ||
172 | }; | ||
173 | |||
174 | struct se_obj { | ||
175 | atomic_t obj_access_count; | ||
176 | } ____cacheline_aligned; | ||
177 | |||
178 | /* | ||
179 | * Used by TCM Core internally to signal if ALUA emulation is enabled or | ||
180 | * disabled, or running in with TCM/pSCSI passthrough mode | ||
181 | */ | ||
182 | typedef enum { | ||
183 | SPC_ALUA_PASSTHROUGH, | ||
184 | SPC2_ALUA_DISABLED, | ||
185 | SPC3_ALUA_EMULATED | ||
186 | } t10_alua_index_t; | ||
187 | |||
188 | /* | ||
189 | * Used by TCM Core internally to signal if SAM Task Attribute emulation | ||
190 | * is enabled or disabled, or running in with TCM/pSCSI passthrough mode | ||
191 | */ | ||
192 | typedef enum { | ||
193 | SAM_TASK_ATTR_PASSTHROUGH, | ||
194 | SAM_TASK_ATTR_UNTAGGED, | ||
195 | SAM_TASK_ATTR_EMULATED | ||
196 | } t10_task_attr_index_t; | ||
197 | |||
198 | struct se_cmd; | ||
199 | |||
200 | struct t10_alua { | ||
201 | t10_alua_index_t alua_type; | ||
202 | /* ALUA Target Port Group ID */ | ||
203 | u16 alua_tg_pt_gps_counter; | ||
204 | u32 alua_tg_pt_gps_count; | ||
205 | spinlock_t tg_pt_gps_lock; | ||
206 | struct se_subsystem_dev *t10_sub_dev; | ||
207 | /* Used for default ALUA Target Port Group */ | ||
208 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | ||
209 | /* Used for default ALUA Target Port Group ConfigFS group */ | ||
210 | struct config_group alua_tg_pt_gps_group; | ||
211 | int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *); | ||
212 | struct list_head tg_pt_gps_list; | ||
213 | } ____cacheline_aligned; | ||
214 | |||
215 | struct t10_alua_lu_gp { | ||
216 | u16 lu_gp_id; | ||
217 | int lu_gp_valid_id; | ||
218 | u32 lu_gp_members; | ||
219 | atomic_t lu_gp_shutdown; | ||
220 | atomic_t lu_gp_ref_cnt; | ||
221 | spinlock_t lu_gp_lock; | ||
222 | struct config_group lu_gp_group; | ||
223 | struct list_head lu_gp_list; | ||
224 | struct list_head lu_gp_mem_list; | ||
225 | } ____cacheline_aligned; | ||
226 | |||
227 | struct t10_alua_lu_gp_member { | ||
228 | int lu_gp_assoc:1; | ||
229 | atomic_t lu_gp_mem_ref_cnt; | ||
230 | spinlock_t lu_gp_mem_lock; | ||
231 | struct t10_alua_lu_gp *lu_gp; | ||
232 | struct se_device *lu_gp_mem_dev; | ||
233 | struct list_head lu_gp_mem_list; | ||
234 | } ____cacheline_aligned; | ||
235 | |||
236 | struct t10_alua_tg_pt_gp { | ||
237 | u16 tg_pt_gp_id; | ||
238 | int tg_pt_gp_valid_id; | ||
239 | int tg_pt_gp_alua_access_status; | ||
240 | int tg_pt_gp_alua_access_type; | ||
241 | int tg_pt_gp_nonop_delay_msecs; | ||
242 | int tg_pt_gp_trans_delay_msecs; | ||
243 | int tg_pt_gp_pref; | ||
244 | int tg_pt_gp_write_metadata; | ||
245 | /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */ | ||
246 | #define ALUA_MD_BUF_LEN 1024 | ||
247 | u32 tg_pt_gp_md_buf_len; | ||
248 | u32 tg_pt_gp_members; | ||
249 | atomic_t tg_pt_gp_alua_access_state; | ||
250 | atomic_t tg_pt_gp_ref_cnt; | ||
251 | spinlock_t tg_pt_gp_lock; | ||
252 | struct mutex tg_pt_gp_md_mutex; | ||
253 | struct se_subsystem_dev *tg_pt_gp_su_dev; | ||
254 | struct config_group tg_pt_gp_group; | ||
255 | struct list_head tg_pt_gp_list; | ||
256 | struct list_head tg_pt_gp_mem_list; | ||
257 | } ____cacheline_aligned; | ||
258 | |||
259 | struct t10_alua_tg_pt_gp_member { | ||
260 | int tg_pt_gp_assoc:1; | ||
261 | atomic_t tg_pt_gp_mem_ref_cnt; | ||
262 | spinlock_t tg_pt_gp_mem_lock; | ||
263 | struct t10_alua_tg_pt_gp *tg_pt_gp; | ||
264 | struct se_port *tg_pt; | ||
265 | struct list_head tg_pt_gp_mem_list; | ||
266 | } ____cacheline_aligned; | ||
267 | |||
268 | struct t10_vpd { | ||
269 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | ||
270 | int protocol_identifier_set; | ||
271 | u32 protocol_identifier; | ||
272 | u32 device_identifier_code_set; | ||
273 | u32 association; | ||
274 | u32 device_identifier_type; | ||
275 | struct list_head vpd_list; | ||
276 | } ____cacheline_aligned; | ||
277 | |||
278 | struct t10_wwn { | ||
279 | unsigned char vendor[8]; | ||
280 | unsigned char model[16]; | ||
281 | unsigned char revision[4]; | ||
282 | unsigned char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | ||
283 | spinlock_t t10_vpd_lock; | ||
284 | struct se_subsystem_dev *t10_sub_dev; | ||
285 | struct config_group t10_wwn_group; | ||
286 | struct list_head t10_vpd_list; | ||
287 | } ____cacheline_aligned; | ||
288 | |||
289 | |||
290 | /* | ||
291 | * Used by TCM Core internally to signal if >= SPC-3 peristent reservations | ||
292 | * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough | ||
293 | * mode | ||
294 | */ | ||
295 | typedef enum { | ||
296 | SPC_PASSTHROUGH, | ||
297 | SPC2_RESERVATIONS, | ||
298 | SPC3_PERSISTENT_RESERVATIONS | ||
299 | } t10_reservations_index_t; | ||
300 | |||
301 | struct t10_pr_registration { | ||
302 | /* Used for fabrics that contain WWN+ISID */ | ||
303 | #define PR_REG_ISID_LEN 16 | ||
304 | /* PR_REG_ISID_LEN + ',i,0x' */ | ||
305 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | ||
306 | char pr_reg_isid[PR_REG_ISID_LEN]; | ||
307 | /* Used during APTPL metadata reading */ | ||
308 | #define PR_APTPL_MAX_IPORT_LEN 256 | ||
309 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | ||
310 | /* Used during APTPL metadata reading */ | ||
311 | #define PR_APTPL_MAX_TPORT_LEN 256 | ||
312 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | ||
313 | /* For writing out live meta data */ | ||
314 | unsigned char *pr_aptpl_buf; | ||
315 | u16 pr_aptpl_rpti; | ||
316 | u16 pr_reg_tpgt; | ||
317 | /* Reservation effects all target ports */ | ||
318 | int pr_reg_all_tg_pt; | ||
319 | /* Activate Persistence across Target Power Loss */ | ||
320 | int pr_reg_aptpl; | ||
321 | int pr_res_holder; | ||
322 | int pr_res_type; | ||
323 | int pr_res_scope; | ||
324 | /* Used for fabric initiator WWPNs using a ISID */ | ||
325 | int isid_present_at_reg:1; | ||
326 | u32 pr_res_mapped_lun; | ||
327 | u32 pr_aptpl_target_lun; | ||
328 | u32 pr_res_generation; | ||
329 | u64 pr_reg_bin_isid; | ||
330 | u64 pr_res_key; | ||
331 | atomic_t pr_res_holders; | ||
332 | struct se_node_acl *pr_reg_nacl; | ||
333 | struct se_dev_entry *pr_reg_deve; | ||
334 | struct se_lun *pr_reg_tg_pt_lun; | ||
335 | struct list_head pr_reg_list; | ||
336 | struct list_head pr_reg_abort_list; | ||
337 | struct list_head pr_reg_aptpl_list; | ||
338 | struct list_head pr_reg_atp_list; | ||
339 | struct list_head pr_reg_atp_mem_list; | ||
340 | } ____cacheline_aligned; | ||
341 | |||
342 | /* | ||
343 | * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, | ||
344 | * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c: | ||
345 | * core_setup_reservations() | ||
346 | */ | ||
347 | struct t10_reservation_ops { | ||
348 | int (*t10_reservation_check)(struct se_cmd *, u32 *); | ||
349 | int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32); | ||
350 | int (*t10_pr_register)(struct se_cmd *); | ||
351 | int (*t10_pr_clear)(struct se_cmd *); | ||
352 | }; | ||
353 | |||
354 | struct t10_reservation_template { | ||
355 | /* Reservation effects all target ports */ | ||
356 | int pr_all_tg_pt; | ||
357 | /* Activate Persistence across Target Power Loss enabled | ||
358 | * for SCSI device */ | ||
359 | int pr_aptpl_active; | ||
360 | /* Used by struct t10_reservation_template->pr_aptpl_buf_len */ | ||
361 | #define PR_APTPL_BUF_LEN 8192 | ||
362 | u32 pr_aptpl_buf_len; | ||
363 | u32 pr_generation; | ||
364 | t10_reservations_index_t res_type; | ||
365 | spinlock_t registration_lock; | ||
366 | spinlock_t aptpl_reg_lock; | ||
367 | /* | ||
368 | * This will always be set by one individual I_T Nexus. | ||
369 | * However with all_tg_pt=1, other I_T Nexus from the | ||
370 | * same initiator can access PR reg/res info on a different | ||
371 | * target port. | ||
372 | * | ||
373 | * There is also the 'All Registrants' case, where there is | ||
374 | * a single *pr_res_holder of the reservation, but all | ||
375 | * registrations are considered reservation holders. | ||
376 | */ | ||
377 | struct se_node_acl *pr_res_holder; | ||
378 | struct list_head registration_list; | ||
379 | struct list_head aptpl_reg_list; | ||
380 | struct t10_reservation_ops pr_ops; | ||
381 | } ____cacheline_aligned; | ||
382 | |||
383 | struct se_queue_req { | ||
384 | int state; | ||
385 | void *cmd; | ||
386 | struct list_head qr_list; | ||
387 | } ____cacheline_aligned; | ||
388 | |||
389 | struct se_queue_obj { | ||
390 | atomic_t queue_cnt; | ||
391 | spinlock_t cmd_queue_lock; | ||
392 | struct list_head qobj_list; | ||
393 | wait_queue_head_t thread_wq; | ||
394 | } ____cacheline_aligned; | ||
395 | |||
396 | /* | ||
397 | * Used one per struct se_cmd to hold all extra struct se_task | ||
398 | * metadata. This structure is setup and allocated in | ||
399 | * drivers/target/target_core_transport.c:__transport_alloc_se_cmd() | ||
400 | */ | ||
401 | struct se_transport_task { | ||
402 | unsigned char *t_task_cdb; | ||
403 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | ||
404 | unsigned long long t_task_lba; | ||
405 | int t_tasks_failed; | ||
406 | int t_tasks_fua; | ||
407 | int t_tasks_bidi:1; | ||
408 | u32 t_task_cdbs; | ||
409 | u32 t_tasks_check; | ||
410 | u32 t_tasks_no; | ||
411 | u32 t_tasks_sectors; | ||
412 | u32 t_tasks_se_num; | ||
413 | u32 t_tasks_se_bidi_num; | ||
414 | u32 t_tasks_sg_chained_no; | ||
415 | atomic_t t_fe_count; | ||
416 | atomic_t t_se_count; | ||
417 | atomic_t t_task_cdbs_left; | ||
418 | atomic_t t_task_cdbs_ex_left; | ||
419 | atomic_t t_task_cdbs_timeout_left; | ||
420 | atomic_t t_task_cdbs_sent; | ||
421 | atomic_t t_transport_aborted; | ||
422 | atomic_t t_transport_active; | ||
423 | atomic_t t_transport_complete; | ||
424 | atomic_t t_transport_queue_active; | ||
425 | atomic_t t_transport_sent; | ||
426 | atomic_t t_transport_stop; | ||
427 | atomic_t t_transport_timeout; | ||
428 | atomic_t transport_dev_active; | ||
429 | atomic_t transport_lun_active; | ||
430 | atomic_t transport_lun_fe_stop; | ||
431 | atomic_t transport_lun_stop; | ||
432 | spinlock_t t_state_lock; | ||
433 | struct completion t_transport_stop_comp; | ||
434 | struct completion transport_lun_fe_stop_comp; | ||
435 | struct completion transport_lun_stop_comp; | ||
436 | struct scatterlist *t_tasks_sg_chained; | ||
437 | struct scatterlist t_tasks_sg_bounce; | ||
438 | void *t_task_buf; | ||
439 | /* | ||
440 | * Used for pre-registered fabric SGL passthrough WRITE and READ | ||
441 | * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop | ||
442 | * and other HW target mode fabric modules. | ||
443 | */ | ||
444 | struct scatterlist *t_task_pt_sgl; | ||
445 | struct list_head *t_mem_list; | ||
446 | /* Used for BIDI READ */ | ||
447 | struct list_head *t_mem_bidi_list; | ||
448 | struct list_head t_task_list; | ||
449 | } ____cacheline_aligned; | ||
450 | |||
451 | struct se_task { | ||
452 | unsigned char task_sense; | ||
453 | struct scatterlist *task_sg; | ||
454 | struct scatterlist *task_sg_bidi; | ||
455 | u8 task_scsi_status; | ||
456 | u8 task_flags; | ||
457 | int task_error_status; | ||
458 | int task_state_flags; | ||
459 | int task_padded_sg:1; | ||
460 | unsigned long long task_lba; | ||
461 | u32 task_no; | ||
462 | u32 task_sectors; | ||
463 | u32 task_size; | ||
464 | u32 task_sg_num; | ||
465 | u32 task_sg_offset; | ||
466 | enum dma_data_direction task_data_direction; | ||
467 | struct se_cmd *task_se_cmd; | ||
468 | struct se_device *se_dev; | ||
469 | struct completion task_stop_comp; | ||
470 | atomic_t task_active; | ||
471 | atomic_t task_execute_queue; | ||
472 | atomic_t task_timeout; | ||
473 | atomic_t task_sent; | ||
474 | atomic_t task_stop; | ||
475 | atomic_t task_state_active; | ||
476 | struct timer_list task_timer; | ||
477 | struct se_device *se_obj_ptr; | ||
478 | struct list_head t_list; | ||
479 | struct list_head t_execute_list; | ||
480 | struct list_head t_state_list; | ||
481 | } ____cacheline_aligned; | ||
482 | |||
483 | #define TASK_CMD(task) ((struct se_cmd *)task->task_se_cmd) | ||
484 | #define TASK_DEV(task) ((struct se_device *)task->se_dev) | ||
485 | |||
486 | struct se_cmd { | ||
487 | /* SAM response code being sent to initiator */ | ||
488 | u8 scsi_status; | ||
489 | u8 scsi_asc; | ||
490 | u8 scsi_ascq; | ||
491 | u8 scsi_sense_reason; | ||
492 | u16 scsi_sense_length; | ||
493 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ | ||
494 | int alua_nonop_delay; | ||
495 | /* See include/linux/dma-mapping.h */ | ||
496 | enum dma_data_direction data_direction; | ||
497 | /* For SAM Task Attribute */ | ||
498 | int sam_task_attr; | ||
499 | /* Transport protocol dependent state, see transport_state_table */ | ||
500 | enum transport_state_table t_state; | ||
501 | /* Transport protocol dependent state for out of order CmdSNs */ | ||
502 | int deferred_t_state; | ||
503 | /* Transport specific error status */ | ||
504 | int transport_error_status; | ||
505 | /* See se_cmd_flags_table */ | ||
506 | u32 se_cmd_flags; | ||
507 | u32 se_ordered_id; | ||
508 | /* Total size in bytes associated with command */ | ||
509 | u32 data_length; | ||
510 | /* SCSI Presented Data Transfer Length */ | ||
511 | u32 cmd_spdtl; | ||
512 | u32 residual_count; | ||
513 | u32 orig_fe_lun; | ||
514 | /* Persistent Reservation key */ | ||
515 | u64 pr_res_key; | ||
516 | atomic_t transport_sent; | ||
517 | /* Used for sense data */ | ||
518 | void *sense_buffer; | ||
519 | struct list_head se_delayed_list; | ||
520 | struct list_head se_ordered_list; | ||
521 | struct list_head se_lun_list; | ||
522 | struct se_device *se_dev; | ||
523 | struct se_dev_entry *se_deve; | ||
524 | struct se_device *se_obj_ptr; | ||
525 | struct se_device *se_orig_obj_ptr; | ||
526 | struct se_lun *se_lun; | ||
527 | /* Only used for internal passthrough and legacy TCM fabric modules */ | ||
528 | struct se_session *se_sess; | ||
529 | struct se_tmr_req *se_tmr_req; | ||
530 | /* t_task is setup to t_task_backstore in transport_init_se_cmd() */ | ||
531 | struct se_transport_task *t_task; | ||
532 | struct se_transport_task t_task_backstore; | ||
533 | struct target_core_fabric_ops *se_tfo; | ||
534 | int (*transport_emulate_cdb)(struct se_cmd *); | ||
535 | void (*transport_split_cdb)(unsigned long long, u32 *, unsigned char *); | ||
536 | void (*transport_wait_for_tasks)(struct se_cmd *, int, int); | ||
537 | void (*transport_complete_callback)(struct se_cmd *); | ||
538 | } ____cacheline_aligned; | ||
539 | |||
540 | #define T_TASK(cmd) ((struct se_transport_task *)(cmd->t_task)) | ||
541 | #define CMD_TFO(cmd) ((struct target_core_fabric_ops *)cmd->se_tfo) | ||
542 | |||
543 | struct se_tmr_req { | ||
544 | /* Task Management function to be preformed */ | ||
545 | u8 function; | ||
546 | /* Task Management response to send */ | ||
547 | u8 response; | ||
548 | int call_transport; | ||
549 | /* Reference to ITT that Task Mgmt should be preformed */ | ||
550 | u32 ref_task_tag; | ||
551 | /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */ | ||
552 | u64 ref_task_lun; | ||
553 | void *fabric_tmr_ptr; | ||
554 | struct se_cmd *task_cmd; | ||
555 | struct se_cmd *ref_cmd; | ||
556 | struct se_device *tmr_dev; | ||
557 | struct se_lun *tmr_lun; | ||
558 | struct list_head tmr_list; | ||
559 | } ____cacheline_aligned; | ||
560 | |||
561 | struct se_ua { | ||
562 | u8 ua_asc; | ||
563 | u8 ua_ascq; | ||
564 | struct se_node_acl *ua_nacl; | ||
565 | struct list_head ua_dev_list; | ||
566 | struct list_head ua_nacl_list; | ||
567 | } ____cacheline_aligned; | ||
568 | |||
569 | struct se_node_acl { | ||
570 | char initiatorname[TRANSPORT_IQN_LEN]; | ||
571 | /* Used to signal demo mode created ACL, disabled by default */ | ||
572 | int dynamic_node_acl:1; | ||
573 | u32 queue_depth; | ||
574 | u32 acl_index; | ||
575 | u64 num_cmds; | ||
576 | u64 read_bytes; | ||
577 | u64 write_bytes; | ||
578 | spinlock_t stats_lock; | ||
579 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | ||
580 | atomic_t acl_pr_ref_count; | ||
581 | /* Used for MIB access */ | ||
582 | atomic_t mib_ref_count; | ||
583 | struct se_dev_entry *device_list; | ||
584 | struct se_session *nacl_sess; | ||
585 | struct se_portal_group *se_tpg; | ||
586 | spinlock_t device_list_lock; | ||
587 | spinlock_t nacl_sess_lock; | ||
588 | struct config_group acl_group; | ||
589 | struct config_group acl_attrib_group; | ||
590 | struct config_group acl_auth_group; | ||
591 | struct config_group acl_param_group; | ||
592 | struct config_group *acl_default_groups[4]; | ||
593 | struct list_head acl_list; | ||
594 | struct list_head acl_sess_list; | ||
595 | } ____cacheline_aligned; | ||
596 | |||
597 | struct se_session { | ||
598 | /* Used for MIB access */ | ||
599 | atomic_t mib_ref_count; | ||
600 | u64 sess_bin_isid; | ||
601 | struct se_node_acl *se_node_acl; | ||
602 | struct se_portal_group *se_tpg; | ||
603 | void *fabric_sess_ptr; | ||
604 | struct list_head sess_list; | ||
605 | struct list_head sess_acl_list; | ||
606 | } ____cacheline_aligned; | ||
607 | |||
608 | #define SE_SESS(cmd) ((struct se_session *)(cmd)->se_sess) | ||
609 | #define SE_NODE_ACL(sess) ((struct se_node_acl *)(sess)->se_node_acl) | ||
610 | |||
611 | struct se_device; | ||
612 | struct se_transform_info; | ||
613 | struct scatterlist; | ||
614 | |||
615 | struct se_lun_acl { | ||
616 | char initiatorname[TRANSPORT_IQN_LEN]; | ||
617 | u32 mapped_lun; | ||
618 | struct se_node_acl *se_lun_nacl; | ||
619 | struct se_lun *se_lun; | ||
620 | struct list_head lacl_list; | ||
621 | struct config_group se_lun_group; | ||
622 | } ____cacheline_aligned; | ||
623 | |||
624 | struct se_dev_entry { | ||
625 | int def_pr_registered:1; | ||
626 | /* See transport_lunflags_table */ | ||
627 | u32 lun_flags; | ||
628 | u32 deve_cmds; | ||
629 | u32 mapped_lun; | ||
630 | u32 average_bytes; | ||
631 | u32 last_byte_count; | ||
632 | u32 total_cmds; | ||
633 | u32 total_bytes; | ||
634 | u64 pr_res_key; | ||
635 | u64 creation_time; | ||
636 | u32 attach_count; | ||
637 | u64 read_bytes; | ||
638 | u64 write_bytes; | ||
639 | atomic_t ua_count; | ||
640 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | ||
641 | atomic_t pr_ref_count; | ||
642 | struct se_lun_acl *se_lun_acl; | ||
643 | spinlock_t ua_lock; | ||
644 | struct se_lun *se_lun; | ||
645 | struct list_head alua_port_list; | ||
646 | struct list_head ua_list; | ||
647 | } ____cacheline_aligned; | ||
648 | |||
649 | struct se_dev_limits { | ||
650 | /* Max supported HW queue depth */ | ||
651 | u32 hw_queue_depth; | ||
652 | /* Max supported virtual queue depth */ | ||
653 | u32 queue_depth; | ||
654 | /* From include/linux/blkdev.h for the other HW/SW limits. */ | ||
655 | struct queue_limits limits; | ||
656 | } ____cacheline_aligned; | ||
657 | |||
658 | struct se_dev_attrib { | ||
659 | int emulate_dpo; | ||
660 | int emulate_fua_write; | ||
661 | int emulate_fua_read; | ||
662 | int emulate_write_cache; | ||
663 | int emulate_ua_intlck_ctrl; | ||
664 | int emulate_tas; | ||
665 | int emulate_tpu; | ||
666 | int emulate_tpws; | ||
667 | int emulate_reservations; | ||
668 | int emulate_alua; | ||
669 | int enforce_pr_isids; | ||
670 | u32 hw_block_size; | ||
671 | u32 block_size; | ||
672 | u32 hw_max_sectors; | ||
673 | u32 max_sectors; | ||
674 | u32 optimal_sectors; | ||
675 | u32 hw_queue_depth; | ||
676 | u32 queue_depth; | ||
677 | u32 task_timeout; | ||
678 | u32 max_unmap_lba_count; | ||
679 | u32 max_unmap_block_desc_count; | ||
680 | u32 unmap_granularity; | ||
681 | u32 unmap_granularity_alignment; | ||
682 | struct se_subsystem_dev *da_sub_dev; | ||
683 | struct config_group da_group; | ||
684 | } ____cacheline_aligned; | ||
685 | |||
686 | struct se_subsystem_dev { | ||
687 | /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */ | ||
688 | #define SE_DEV_ALIAS_LEN 512 | ||
689 | unsigned char se_dev_alias[SE_DEV_ALIAS_LEN]; | ||
690 | /* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */ | ||
691 | #define SE_UDEV_PATH_LEN 512 | ||
692 | unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN]; | ||
693 | u32 su_dev_flags; | ||
694 | struct se_hba *se_dev_hba; | ||
695 | struct se_device *se_dev_ptr; | ||
696 | struct se_dev_attrib se_dev_attrib; | ||
697 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | ||
698 | struct t10_alua t10_alua; | ||
699 | /* T10 Inquiry and VPD WWN Information */ | ||
700 | struct t10_wwn t10_wwn; | ||
701 | /* T10 SPC-2 + SPC-3 Reservations */ | ||
702 | struct t10_reservation_template t10_reservation; | ||
703 | spinlock_t se_dev_lock; | ||
704 | void *se_dev_su_ptr; | ||
705 | struct list_head g_se_dev_list; | ||
706 | struct config_group se_dev_group; | ||
707 | /* For T10 Reservations */ | ||
708 | struct config_group se_dev_pr_group; | ||
709 | } ____cacheline_aligned; | ||
710 | |||
711 | #define T10_ALUA(su_dev) (&(su_dev)->t10_alua) | ||
712 | #define T10_RES(su_dev) (&(su_dev)->t10_reservation) | ||
713 | #define T10_PR_OPS(su_dev) (&(su_dev)->t10_reservation.pr_ops) | ||
714 | |||
715 | struct se_device { | ||
716 | /* Set to 1 if thread is NOT sleeping on thread_sem */ | ||
717 | u8 thread_active; | ||
718 | u8 dev_status_timer_flags; | ||
719 | /* RELATIVE TARGET PORT IDENTIFER Counter */ | ||
720 | u16 dev_rpti_counter; | ||
721 | /* Used for SAM Task Attribute ordering */ | ||
722 | u32 dev_cur_ordered_id; | ||
723 | u32 dev_flags; | ||
724 | u32 dev_port_count; | ||
725 | /* See transport_device_status_table */ | ||
726 | u32 dev_status; | ||
727 | u32 dev_tcq_window_closed; | ||
728 | /* Physical device queue depth */ | ||
729 | u32 queue_depth; | ||
730 | /* Used for SPC-2 reservations enforce of ISIDs */ | ||
731 | u64 dev_res_bin_isid; | ||
732 | t10_task_attr_index_t dev_task_attr_type; | ||
733 | /* Pointer to transport specific device structure */ | ||
734 | void *dev_ptr; | ||
735 | u32 dev_index; | ||
736 | u64 creation_time; | ||
737 | u32 num_resets; | ||
738 | u64 num_cmds; | ||
739 | u64 read_bytes; | ||
740 | u64 write_bytes; | ||
741 | spinlock_t stats_lock; | ||
742 | /* Active commands on this virtual SE device */ | ||
743 | atomic_t active_cmds; | ||
744 | atomic_t simple_cmds; | ||
745 | atomic_t depth_left; | ||
746 | atomic_t dev_ordered_id; | ||
747 | atomic_t dev_tur_active; | ||
748 | atomic_t execute_tasks; | ||
749 | atomic_t dev_status_thr_count; | ||
750 | atomic_t dev_hoq_count; | ||
751 | atomic_t dev_ordered_sync; | ||
752 | struct se_obj dev_obj; | ||
753 | struct se_obj dev_access_obj; | ||
754 | struct se_obj dev_export_obj; | ||
755 | struct se_queue_obj *dev_queue_obj; | ||
756 | struct se_queue_obj *dev_status_queue_obj; | ||
757 | spinlock_t delayed_cmd_lock; | ||
758 | spinlock_t ordered_cmd_lock; | ||
759 | spinlock_t execute_task_lock; | ||
760 | spinlock_t state_task_lock; | ||
761 | spinlock_t dev_alua_lock; | ||
762 | spinlock_t dev_reservation_lock; | ||
763 | spinlock_t dev_state_lock; | ||
764 | spinlock_t dev_status_lock; | ||
765 | spinlock_t dev_status_thr_lock; | ||
766 | spinlock_t se_port_lock; | ||
767 | spinlock_t se_tmr_lock; | ||
768 | /* Used for legacy SPC-2 reservationsa */ | ||
769 | struct se_node_acl *dev_reserved_node_acl; | ||
770 | /* Used for ALUA Logical Unit Group membership */ | ||
771 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | ||
772 | /* Used for SPC-3 Persistent Reservations */ | ||
773 | struct t10_pr_registration *dev_pr_res_holder; | ||
774 | struct list_head dev_sep_list; | ||
775 | struct list_head dev_tmr_list; | ||
776 | struct timer_list dev_status_timer; | ||
777 | /* Pointer to descriptor for processing thread */ | ||
778 | struct task_struct *process_thread; | ||
779 | pid_t process_thread_pid; | ||
780 | struct task_struct *dev_mgmt_thread; | ||
781 | struct list_head delayed_cmd_list; | ||
782 | struct list_head ordered_cmd_list; | ||
783 | struct list_head execute_task_list; | ||
784 | struct list_head state_task_list; | ||
785 | /* Pointer to associated SE HBA */ | ||
786 | struct se_hba *se_hba; | ||
787 | struct se_subsystem_dev *se_sub_dev; | ||
788 | /* Pointer to template of function pointers for transport */ | ||
789 | struct se_subsystem_api *transport; | ||
790 | /* Linked list for struct se_hba struct se_device list */ | ||
791 | struct list_head dev_list; | ||
792 | /* Linked list for struct se_global->g_se_dev_list */ | ||
793 | struct list_head g_se_dev_list; | ||
794 | } ____cacheline_aligned; | ||
795 | |||
796 | #define SE_DEV(cmd) ((struct se_device *)(cmd)->se_lun->lun_se_dev) | ||
797 | #define SU_DEV(dev) ((struct se_subsystem_dev *)(dev)->se_sub_dev) | ||
798 | #define DEV_ATTRIB(dev) (&(dev)->se_sub_dev->se_dev_attrib) | ||
799 | #define DEV_T10_WWN(dev) (&(dev)->se_sub_dev->t10_wwn) | ||
800 | |||
801 | struct se_hba { | ||
802 | u16 hba_tpgt; | ||
803 | u32 hba_id; | ||
804 | /* See hba_flags_table */ | ||
805 | u32 hba_flags; | ||
806 | /* Virtual iSCSI devices attached. */ | ||
807 | u32 dev_count; | ||
808 | u32 hba_index; | ||
809 | atomic_t dev_mib_access_count; | ||
810 | atomic_t load_balance_queue; | ||
811 | atomic_t left_queue_depth; | ||
812 | /* Maximum queue depth the HBA can handle. */ | ||
813 | atomic_t max_queue_depth; | ||
814 | /* Pointer to transport specific host structure. */ | ||
815 | void *hba_ptr; | ||
816 | /* Linked list for struct se_device */ | ||
817 | struct list_head hba_dev_list; | ||
818 | struct list_head hba_list; | ||
819 | spinlock_t device_lock; | ||
820 | spinlock_t hba_queue_lock; | ||
821 | struct config_group hba_group; | ||
822 | struct mutex hba_access_mutex; | ||
823 | struct se_subsystem_api *transport; | ||
824 | } ____cacheline_aligned; | ||
825 | |||
826 | #define SE_HBA(d) ((struct se_hba *)(d)->se_hba) | ||
827 | |||
828 | struct se_lun { | ||
829 | /* See transport_lun_status_table */ | ||
830 | enum transport_lun_status_table lun_status; | ||
831 | u32 lun_access; | ||
832 | u32 lun_flags; | ||
833 | u32 unpacked_lun; | ||
834 | atomic_t lun_acl_count; | ||
835 | spinlock_t lun_acl_lock; | ||
836 | spinlock_t lun_cmd_lock; | ||
837 | spinlock_t lun_sep_lock; | ||
838 | struct completion lun_shutdown_comp; | ||
839 | struct list_head lun_cmd_list; | ||
840 | struct list_head lun_acl_list; | ||
841 | struct se_device *lun_se_dev; | ||
842 | struct config_group lun_group; | ||
843 | struct se_port *lun_sep; | ||
844 | } ____cacheline_aligned; | ||
845 | |||
846 | #define SE_LUN(c) ((struct se_lun *)(c)->se_lun) | ||
847 | |||
848 | struct se_port { | ||
849 | /* RELATIVE TARGET PORT IDENTIFER */ | ||
850 | u16 sep_rtpi; | ||
851 | int sep_tg_pt_secondary_stat; | ||
852 | int sep_tg_pt_secondary_write_md; | ||
853 | u32 sep_index; | ||
854 | struct scsi_port_stats sep_stats; | ||
855 | /* Used for ALUA Target Port Groups membership */ | ||
856 | atomic_t sep_tg_pt_gp_active; | ||
857 | atomic_t sep_tg_pt_secondary_offline; | ||
858 | /* Used for PR ALL_TG_PT=1 */ | ||
859 | atomic_t sep_tg_pt_ref_cnt; | ||
860 | spinlock_t sep_alua_lock; | ||
861 | struct mutex sep_tg_pt_md_mutex; | ||
862 | struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem; | ||
863 | struct se_lun *sep_lun; | ||
864 | struct se_portal_group *sep_tpg; | ||
865 | struct list_head sep_alua_list; | ||
866 | struct list_head sep_list; | ||
867 | } ____cacheline_aligned; | ||
868 | |||
869 | struct se_tpg_np { | ||
870 | struct config_group tpg_np_group; | ||
871 | } ____cacheline_aligned; | ||
872 | |||
873 | struct se_portal_group { | ||
874 | /* Type of target portal group, see transport_tpg_type_table */ | ||
875 | enum transport_tpg_type_table se_tpg_type; | ||
876 | /* Number of ACLed Initiator Nodes for this TPG */ | ||
877 | u32 num_node_acls; | ||
878 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | ||
879 | atomic_t tpg_pr_ref_count; | ||
880 | /* Spinlock for adding/removing ACLed Nodes */ | ||
881 | spinlock_t acl_node_lock; | ||
882 | /* Spinlock for adding/removing sessions */ | ||
883 | spinlock_t session_lock; | ||
884 | spinlock_t tpg_lun_lock; | ||
885 | /* Pointer to $FABRIC_MOD portal group */ | ||
886 | void *se_tpg_fabric_ptr; | ||
887 | struct list_head se_tpg_list; | ||
888 | /* linked list for initiator ACL list */ | ||
889 | struct list_head acl_node_list; | ||
890 | struct se_lun *tpg_lun_list; | ||
891 | struct se_lun tpg_virt_lun0; | ||
892 | /* List of TCM sessions assoicated wth this TPG */ | ||
893 | struct list_head tpg_sess_list; | ||
894 | /* Pointer to $FABRIC_MOD dependent code */ | ||
895 | struct target_core_fabric_ops *se_tpg_tfo; | ||
896 | struct se_wwn *se_tpg_wwn; | ||
897 | struct config_group tpg_group; | ||
898 | struct config_group *tpg_default_groups[6]; | ||
899 | struct config_group tpg_lun_group; | ||
900 | struct config_group tpg_np_group; | ||
901 | struct config_group tpg_acl_group; | ||
902 | struct config_group tpg_attrib_group; | ||
903 | struct config_group tpg_param_group; | ||
904 | } ____cacheline_aligned; | ||
905 | |||
906 | #define TPG_TFO(se_tpg) ((struct target_core_fabric_ops *)(se_tpg)->se_tpg_tfo) | ||
907 | |||
908 | struct se_wwn { | ||
909 | struct target_fabric_configfs *wwn_tf; | ||
910 | struct config_group wwn_group; | ||
911 | } ____cacheline_aligned; | ||
912 | |||
913 | struct se_global { | ||
914 | u16 alua_lu_gps_counter; | ||
915 | int g_sub_api_initialized; | ||
916 | u32 in_shutdown; | ||
917 | u32 alua_lu_gps_count; | ||
918 | u32 g_hba_id_counter; | ||
919 | struct config_group target_core_hbagroup; | ||
920 | struct config_group alua_group; | ||
921 | struct config_group alua_lu_gps_group; | ||
922 | struct list_head g_lu_gps_list; | ||
923 | struct list_head g_se_tpg_list; | ||
924 | struct list_head g_hba_list; | ||
925 | struct list_head g_se_dev_list; | ||
926 | struct se_hba *g_lun0_hba; | ||
927 | struct se_subsystem_dev *g_lun0_su_dev; | ||
928 | struct se_device *g_lun0_dev; | ||
929 | struct t10_alua_lu_gp *default_lu_gp; | ||
930 | spinlock_t g_device_lock; | ||
931 | spinlock_t hba_lock; | ||
932 | spinlock_t se_tpg_lock; | ||
933 | spinlock_t lu_gps_lock; | ||
934 | spinlock_t plugin_class_lock; | ||
935 | } ____cacheline_aligned; | ||
936 | |||
937 | #endif /* TARGET_CORE_BASE_H */ | ||
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h new file mode 100644 index 000000000000..40e6e740527c --- /dev/null +++ b/include/target/target_core_configfs.h | |||
@@ -0,0 +1,52 @@ | |||
1 | #define TARGET_CORE_CONFIGFS_VERSION TARGET_CORE_MOD_VERSION | ||
2 | |||
3 | #define TARGET_CORE_CONFIG_ROOT "/sys/kernel/config" | ||
4 | |||
5 | #define TARGET_CORE_NAME_MAX_LEN 64 | ||
6 | #define TARGET_FABRIC_NAME_SIZE 32 | ||
7 | |||
8 | extern struct target_fabric_configfs *target_fabric_configfs_init( | ||
9 | struct module *, const char *); | ||
10 | extern void target_fabric_configfs_free(struct target_fabric_configfs *); | ||
11 | extern int target_fabric_configfs_register(struct target_fabric_configfs *); | ||
12 | extern void target_fabric_configfs_deregister(struct target_fabric_configfs *); | ||
13 | |||
14 | struct target_fabric_configfs_template { | ||
15 | struct config_item_type tfc_discovery_cit; | ||
16 | struct config_item_type tfc_wwn_cit; | ||
17 | struct config_item_type tfc_tpg_cit; | ||
18 | struct config_item_type tfc_tpg_base_cit; | ||
19 | struct config_item_type tfc_tpg_lun_cit; | ||
20 | struct config_item_type tfc_tpg_port_cit; | ||
21 | struct config_item_type tfc_tpg_np_cit; | ||
22 | struct config_item_type tfc_tpg_np_base_cit; | ||
23 | struct config_item_type tfc_tpg_attrib_cit; | ||
24 | struct config_item_type tfc_tpg_param_cit; | ||
25 | struct config_item_type tfc_tpg_nacl_cit; | ||
26 | struct config_item_type tfc_tpg_nacl_base_cit; | ||
27 | struct config_item_type tfc_tpg_nacl_attrib_cit; | ||
28 | struct config_item_type tfc_tpg_nacl_auth_cit; | ||
29 | struct config_item_type tfc_tpg_nacl_param_cit; | ||
30 | struct config_item_type tfc_tpg_mappedlun_cit; | ||
31 | }; | ||
32 | |||
33 | struct target_fabric_configfs { | ||
34 | char tf_name[TARGET_FABRIC_NAME_SIZE]; | ||
35 | atomic_t tf_access_cnt; | ||
36 | struct list_head tf_list; | ||
37 | struct config_group tf_group; | ||
38 | struct config_group tf_disc_group; | ||
39 | struct config_group *tf_default_groups[2]; | ||
40 | /* Pointer to fabric's config_item */ | ||
41 | struct config_item *tf_fabric; | ||
42 | /* Passed from fabric modules */ | ||
43 | struct config_item_type *tf_fabric_cit; | ||
44 | /* Pointer to target core subsystem */ | ||
45 | struct configfs_subsystem *tf_subsys; | ||
46 | /* Pointer to fabric's struct module */ | ||
47 | struct module *tf_module; | ||
48 | struct target_core_fabric_ops tf_ops; | ||
49 | struct target_fabric_configfs_template tf_cit_tmpl; | ||
50 | }; | ||
51 | |||
52 | #define TF_CIT_TMPL(tf) (&(tf)->tf_cit_tmpl) | ||
diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h new file mode 100644 index 000000000000..52b18a5752c9 --- /dev/null +++ b/include/target/target_core_device.h | |||
@@ -0,0 +1,61 @@ | |||
1 | #ifndef TARGET_CORE_DEVICE_H | ||
2 | #define TARGET_CORE_DEVICE_H | ||
3 | |||
4 | extern int transport_get_lun_for_cmd(struct se_cmd *, unsigned char *, u32); | ||
5 | extern int transport_get_lun_for_tmr(struct se_cmd *, u32); | ||
6 | extern struct se_dev_entry *core_get_se_deve_from_rtpi( | ||
7 | struct se_node_acl *, u16); | ||
8 | extern int core_free_device_list_for_node(struct se_node_acl *, | ||
9 | struct se_portal_group *); | ||
10 | extern void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *); | ||
11 | extern void core_update_device_list_access(u32, u32, struct se_node_acl *); | ||
12 | extern int core_update_device_list_for_node(struct se_lun *, struct se_lun_acl *, u32, | ||
13 | u32, struct se_node_acl *, | ||
14 | struct se_portal_group *, int); | ||
15 | extern void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *); | ||
16 | extern int core_dev_export(struct se_device *, struct se_portal_group *, | ||
17 | struct se_lun *); | ||
18 | extern void core_dev_unexport(struct se_device *, struct se_portal_group *, | ||
19 | struct se_lun *); | ||
20 | extern int transport_core_report_lun_response(struct se_cmd *); | ||
21 | extern void se_release_device_for_hba(struct se_device *); | ||
22 | extern void se_release_vpd_for_dev(struct se_device *); | ||
23 | extern void se_clear_dev_ports(struct se_device *); | ||
24 | extern int se_free_virtual_device(struct se_device *, struct se_hba *); | ||
25 | extern int se_dev_check_online(struct se_device *); | ||
26 | extern int se_dev_check_shutdown(struct se_device *); | ||
27 | extern void se_dev_set_default_attribs(struct se_device *, struct se_dev_limits *); | ||
28 | extern int se_dev_set_task_timeout(struct se_device *, u32); | ||
29 | extern int se_dev_set_max_unmap_lba_count(struct se_device *, u32); | ||
30 | extern int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32); | ||
31 | extern int se_dev_set_unmap_granularity(struct se_device *, u32); | ||
32 | extern int se_dev_set_unmap_granularity_alignment(struct se_device *, u32); | ||
33 | extern int se_dev_set_emulate_dpo(struct se_device *, int); | ||
34 | extern int se_dev_set_emulate_fua_write(struct se_device *, int); | ||
35 | extern int se_dev_set_emulate_fua_read(struct se_device *, int); | ||
36 | extern int se_dev_set_emulate_write_cache(struct se_device *, int); | ||
37 | extern int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int); | ||
38 | extern int se_dev_set_emulate_tas(struct se_device *, int); | ||
39 | extern int se_dev_set_emulate_tpu(struct se_device *, int); | ||
40 | extern int se_dev_set_emulate_tpws(struct se_device *, int); | ||
41 | extern int se_dev_set_enforce_pr_isids(struct se_device *, int); | ||
42 | extern int se_dev_set_queue_depth(struct se_device *, u32); | ||
43 | extern int se_dev_set_max_sectors(struct se_device *, u32); | ||
44 | extern int se_dev_set_optimal_sectors(struct se_device *, u32); | ||
45 | extern int se_dev_set_block_size(struct se_device *, u32); | ||
46 | extern struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *, | ||
47 | struct se_device *, u32); | ||
48 | extern int core_dev_del_lun(struct se_portal_group *, u32); | ||
49 | extern struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32); | ||
50 | extern struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *, | ||
51 | u32, char *, int *); | ||
52 | extern int core_dev_add_initiator_node_lun_acl(struct se_portal_group *, | ||
53 | struct se_lun_acl *, u32, u32); | ||
54 | extern int core_dev_del_initiator_node_lun_acl(struct se_portal_group *, | ||
55 | struct se_lun *, struct se_lun_acl *); | ||
56 | extern void core_dev_free_initiator_node_lun_acl(struct se_portal_group *, | ||
57 | struct se_lun_acl *lacl); | ||
58 | extern int core_dev_setup_virtual_lun0(void); | ||
59 | extern void core_dev_release_virtual_lun0(void); | ||
60 | |||
61 | #endif /* TARGET_CORE_DEVICE_H */ | ||
diff --git a/include/target/target_core_fabric_configfs.h b/include/target/target_core_fabric_configfs.h new file mode 100644 index 000000000000..a26fb7586a09 --- /dev/null +++ b/include/target/target_core_fabric_configfs.h | |||
@@ -0,0 +1,106 @@ | |||
1 | /* | ||
2 | * Used for tfc_wwn_cit attributes | ||
3 | */ | ||
4 | |||
5 | #include <target/configfs_macros.h> | ||
6 | |||
7 | CONFIGFS_EATTR_STRUCT(target_fabric_nacl_attrib, se_node_acl); | ||
8 | #define TF_NACL_ATTRIB_ATTR(_fabric, _name, _mode) \ | ||
9 | static struct target_fabric_nacl_attrib_attribute _fabric##_nacl_attrib_##_name = \ | ||
10 | __CONFIGFS_EATTR(_name, _mode, \ | ||
11 | _fabric##_nacl_attrib_show_##_name, \ | ||
12 | _fabric##_nacl_attrib_store_##_name); | ||
13 | |||
14 | CONFIGFS_EATTR_STRUCT(target_fabric_nacl_auth, se_node_acl); | ||
15 | #define TF_NACL_AUTH_ATTR(_fabric, _name, _mode) \ | ||
16 | static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \ | ||
17 | __CONFIGFS_EATTR(_name, _mode, \ | ||
18 | _fabric##_nacl_auth_show_##_name, \ | ||
19 | _fabric##_nacl_auth_store_##_name); | ||
20 | |||
21 | #define TF_NACL_AUTH_ATTR_RO(_fabric, _name) \ | ||
22 | static struct target_fabric_nacl_auth_attribute _fabric##_nacl_auth_##_name = \ | ||
23 | __CONFIGFS_EATTR_RO(_name, \ | ||
24 | _fabric##_nacl_auth_show_##_name); | ||
25 | |||
26 | CONFIGFS_EATTR_STRUCT(target_fabric_nacl_param, se_node_acl); | ||
27 | #define TF_NACL_PARAM_ATTR(_fabric, _name, _mode) \ | ||
28 | static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \ | ||
29 | __CONFIGFS_EATTR(_name, _mode, \ | ||
30 | _fabric##_nacl_param_show_##_name, \ | ||
31 | _fabric##_nacl_param_store_##_name); | ||
32 | |||
33 | #define TF_NACL_PARAM_ATTR_RO(_fabric, _name) \ | ||
34 | static struct target_fabric_nacl_param_attribute _fabric##_nacl_param_##_name = \ | ||
35 | __CONFIGFS_EATTR_RO(_name, \ | ||
36 | _fabric##_nacl_param_show_##_name); | ||
37 | |||
38 | |||
39 | CONFIGFS_EATTR_STRUCT(target_fabric_nacl_base, se_node_acl); | ||
40 | #define TF_NACL_BASE_ATTR(_fabric, _name, _mode) \ | ||
41 | static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \ | ||
42 | __CONFIGFS_EATTR(_name, _mode, \ | ||
43 | _fabric##_nacl_show_##_name, \ | ||
44 | _fabric##_nacl_store_##_name); | ||
45 | |||
46 | #define TF_NACL_BASE_ATTR_RO(_fabric, _name) \ | ||
47 | static struct target_fabric_nacl_base_attribute _fabric##_nacl_##_name = \ | ||
48 | __CONFIGFS_EATTR_RO(_name, \ | ||
49 | _fabric##_nacl_show_##_name); | ||
50 | |||
51 | CONFIGFS_EATTR_STRUCT(target_fabric_np_base, se_tpg_np); | ||
52 | #define TF_NP_BASE_ATTR(_fabric, _name, _mode) \ | ||
53 | static struct target_fabric_np_base_attribute _fabric##_np_##_name = \ | ||
54 | __CONFIGFS_EATTR(_name, _mode, \ | ||
55 | _fabric##_np_show_##_name, \ | ||
56 | _fabric##_np_store_##_name); | ||
57 | |||
58 | CONFIGFS_EATTR_STRUCT(target_fabric_tpg_attrib, se_portal_group); | ||
59 | #define TF_TPG_ATTRIB_ATTR(_fabric, _name, _mode) \ | ||
60 | static struct target_fabric_tpg_attrib_attribute _fabric##_tpg_attrib_##_name = \ | ||
61 | __CONFIGFS_EATTR(_name, _mode, \ | ||
62 | _fabric##_tpg_attrib_show_##_name, \ | ||
63 | _fabric##_tpg_attrib_store_##_name); | ||
64 | |||
65 | |||
66 | CONFIGFS_EATTR_STRUCT(target_fabric_tpg_param, se_portal_group); | ||
67 | #define TF_TPG_PARAM_ATTR(_fabric, _name, _mode) \ | ||
68 | static struct target_fabric_tpg_param_attribute _fabric##_tpg_param_##_name = \ | ||
69 | __CONFIGFS_EATTR(_name, _mode, \ | ||
70 | _fabric##_tpg_param_show_##_name, \ | ||
71 | _fabric##_tpg_param_store_##_name); | ||
72 | |||
73 | |||
74 | CONFIGFS_EATTR_STRUCT(target_fabric_tpg, se_portal_group); | ||
75 | #define TF_TPG_BASE_ATTR(_fabric, _name, _mode) \ | ||
76 | static struct target_fabric_tpg_attribute _fabric##_tpg_##_name = \ | ||
77 | __CONFIGFS_EATTR(_name, _mode, \ | ||
78 | _fabric##_tpg_show_##_name, \ | ||
79 | _fabric##_tpg_store_##_name); | ||
80 | |||
81 | |||
82 | CONFIGFS_EATTR_STRUCT(target_fabric_wwn, target_fabric_configfs); | ||
83 | #define TF_WWN_ATTR(_fabric, _name, _mode) \ | ||
84 | static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \ | ||
85 | __CONFIGFS_EATTR(_name, _mode, \ | ||
86 | _fabric##_wwn_show_attr_##_name, \ | ||
87 | _fabric##_wwn_store_attr_##_name); | ||
88 | |||
89 | #define TF_WWN_ATTR_RO(_fabric, _name) \ | ||
90 | static struct target_fabric_wwn_attribute _fabric##_wwn_##_name = \ | ||
91 | __CONFIGFS_EATTR_RO(_name, \ | ||
92 | _fabric##_wwn_show_attr_##_name); | ||
93 | |||
94 | CONFIGFS_EATTR_STRUCT(target_fabric_discovery, target_fabric_configfs); | ||
95 | #define TF_DISC_ATTR(_fabric, _name, _mode) \ | ||
96 | static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \ | ||
97 | __CONFIGFS_EATTR(_name, _mode, \ | ||
98 | _fabric##_disc_show_##_name, \ | ||
99 | _fabric##_disc_store_##_name); | ||
100 | |||
101 | #define TF_DISC_ATTR_RO(_fabric, _name) \ | ||
102 | static struct target_fabric_discovery_attribute _fabric##_disc_##_name = \ | ||
103 | __CONFIGFS_EATTR_RO(_name, \ | ||
104 | _fabric##_disc_show_##_name); | ||
105 | |||
106 | extern int target_fabric_setup_cits(struct target_fabric_configfs *); | ||
diff --git a/include/target/target_core_fabric_lib.h b/include/target/target_core_fabric_lib.h new file mode 100644 index 000000000000..c2f8d0e3a03b --- /dev/null +++ b/include/target/target_core_fabric_lib.h | |||
@@ -0,0 +1,28 @@ | |||
1 | #ifndef TARGET_CORE_FABRIC_LIB_H | ||
2 | #define TARGET_CORE_FABRIC_LIB_H | ||
3 | |||
4 | extern u8 sas_get_fabric_proto_ident(struct se_portal_group *); | ||
5 | extern u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | ||
6 | struct t10_pr_registration *, int *, unsigned char *); | ||
7 | extern u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | ||
8 | struct t10_pr_registration *, int *); | ||
9 | extern char *sas_parse_pr_out_transport_id(struct se_portal_group *, | ||
10 | const char *, u32 *, char **); | ||
11 | |||
12 | extern u8 fc_get_fabric_proto_ident(struct se_portal_group *); | ||
13 | extern u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | ||
14 | struct t10_pr_registration *, int *, unsigned char *); | ||
15 | extern u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | ||
16 | struct t10_pr_registration *, int *); | ||
17 | extern char *fc_parse_pr_out_transport_id(struct se_portal_group *, | ||
18 | const char *, u32 *, char **); | ||
19 | |||
20 | extern u8 iscsi_get_fabric_proto_ident(struct se_portal_group *); | ||
21 | extern u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *, | ||
22 | struct t10_pr_registration *, int *, unsigned char *); | ||
23 | extern u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *, | ||
24 | struct t10_pr_registration *, int *); | ||
25 | extern char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, | ||
26 | const char *, u32 *, char **); | ||
27 | |||
28 | #endif /* TARGET_CORE_FABRIC_LIB_H */ | ||
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h new file mode 100644 index 000000000000..f3ac12b019c2 --- /dev/null +++ b/include/target/target_core_fabric_ops.h | |||
@@ -0,0 +1,100 @@ | |||
1 | /* Defined in target_core_configfs.h */ | ||
2 | struct target_fabric_configfs; | ||
3 | |||
4 | struct target_core_fabric_ops { | ||
5 | struct configfs_subsystem *tf_subsys; | ||
6 | /* | ||
7 | * Optional to signal struct se_task->task_sg[] padding entries | ||
8 | * for scatterlist chaining using transport_do_task_sg_link(), | ||
9 | * disabled by default | ||
10 | */ | ||
11 | int task_sg_chaining:1; | ||
12 | char *(*get_fabric_name)(void); | ||
13 | u8 (*get_fabric_proto_ident)(struct se_portal_group *); | ||
14 | char *(*tpg_get_wwn)(struct se_portal_group *); | ||
15 | u16 (*tpg_get_tag)(struct se_portal_group *); | ||
16 | u32 (*tpg_get_default_depth)(struct se_portal_group *); | ||
17 | u32 (*tpg_get_pr_transport_id)(struct se_portal_group *, | ||
18 | struct se_node_acl *, | ||
19 | struct t10_pr_registration *, int *, | ||
20 | unsigned char *); | ||
21 | u32 (*tpg_get_pr_transport_id_len)(struct se_portal_group *, | ||
22 | struct se_node_acl *, | ||
23 | struct t10_pr_registration *, int *); | ||
24 | char *(*tpg_parse_pr_out_transport_id)(struct se_portal_group *, | ||
25 | const char *, u32 *, char **); | ||
26 | int (*tpg_check_demo_mode)(struct se_portal_group *); | ||
27 | int (*tpg_check_demo_mode_cache)(struct se_portal_group *); | ||
28 | int (*tpg_check_demo_mode_write_protect)(struct se_portal_group *); | ||
29 | int (*tpg_check_prod_mode_write_protect)(struct se_portal_group *); | ||
30 | struct se_node_acl *(*tpg_alloc_fabric_acl)( | ||
31 | struct se_portal_group *); | ||
32 | void (*tpg_release_fabric_acl)(struct se_portal_group *, | ||
33 | struct se_node_acl *); | ||
34 | u32 (*tpg_get_inst_index)(struct se_portal_group *); | ||
35 | /* | ||
36 | * Optional function pointer for TCM to perform command map | ||
37 | * from TCM processing thread context, for those struct se_cmd | ||
38 | * initally allocated in interrupt context. | ||
39 | */ | ||
40 | int (*new_cmd_map)(struct se_cmd *); | ||
41 | /* | ||
42 | * Optional function pointer for TCM fabric modules that use | ||
43 | * Linux/NET sockets to allocate struct iovec array to struct se_cmd | ||
44 | */ | ||
45 | int (*alloc_cmd_iovecs)(struct se_cmd *); | ||
46 | /* | ||
47 | * Optional to release struct se_cmd and fabric dependent allocated | ||
48 | * I/O descriptor in transport_cmd_check_stop() | ||
49 | */ | ||
50 | void (*check_stop_free)(struct se_cmd *); | ||
51 | void (*release_cmd_to_pool)(struct se_cmd *); | ||
52 | void (*release_cmd_direct)(struct se_cmd *); | ||
53 | /* | ||
54 | * Called with spin_lock_bh(struct se_portal_group->session_lock held. | ||
55 | */ | ||
56 | int (*shutdown_session)(struct se_session *); | ||
57 | void (*close_session)(struct se_session *); | ||
58 | void (*stop_session)(struct se_session *, int, int); | ||
59 | void (*fall_back_to_erl0)(struct se_session *); | ||
60 | int (*sess_logged_in)(struct se_session *); | ||
61 | u32 (*sess_get_index)(struct se_session *); | ||
62 | /* | ||
63 | * Used only for SCSI fabrics that contain multi-value TransportIDs | ||
64 | * (like iSCSI). All other SCSI fabrics should set this to NULL. | ||
65 | */ | ||
66 | u32 (*sess_get_initiator_sid)(struct se_session *, | ||
67 | unsigned char *, u32); | ||
68 | int (*write_pending)(struct se_cmd *); | ||
69 | int (*write_pending_status)(struct se_cmd *); | ||
70 | void (*set_default_node_attributes)(struct se_node_acl *); | ||
71 | u32 (*get_task_tag)(struct se_cmd *); | ||
72 | int (*get_cmd_state)(struct se_cmd *); | ||
73 | void (*new_cmd_failure)(struct se_cmd *); | ||
74 | int (*queue_data_in)(struct se_cmd *); | ||
75 | int (*queue_status)(struct se_cmd *); | ||
76 | int (*queue_tm_rsp)(struct se_cmd *); | ||
77 | u16 (*set_fabric_sense_len)(struct se_cmd *, u32); | ||
78 | u16 (*get_fabric_sense_len)(void); | ||
79 | int (*is_state_remove)(struct se_cmd *); | ||
80 | u64 (*pack_lun)(unsigned int); | ||
81 | /* | ||
82 | * fabric module calls for target_core_fabric_configfs.c | ||
83 | */ | ||
84 | struct se_wwn *(*fabric_make_wwn)(struct target_fabric_configfs *, | ||
85 | struct config_group *, const char *); | ||
86 | void (*fabric_drop_wwn)(struct se_wwn *); | ||
87 | struct se_portal_group *(*fabric_make_tpg)(struct se_wwn *, | ||
88 | struct config_group *, const char *); | ||
89 | void (*fabric_drop_tpg)(struct se_portal_group *); | ||
90 | int (*fabric_post_link)(struct se_portal_group *, | ||
91 | struct se_lun *); | ||
92 | void (*fabric_pre_unlink)(struct se_portal_group *, | ||
93 | struct se_lun *); | ||
94 | struct se_tpg_np *(*fabric_make_np)(struct se_portal_group *, | ||
95 | struct config_group *, const char *); | ||
96 | void (*fabric_drop_np)(struct se_tpg_np *); | ||
97 | struct se_node_acl *(*fabric_make_nodeacl)(struct se_portal_group *, | ||
98 | struct config_group *, const char *); | ||
99 | void (*fabric_drop_nodeacl)(struct se_node_acl *); | ||
100 | }; | ||
diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h new file mode 100644 index 000000000000..6c8248bc2c66 --- /dev/null +++ b/include/target/target_core_tmr.h | |||
@@ -0,0 +1,43 @@ | |||
1 | #ifndef TARGET_CORE_TMR_H | ||
2 | #define TARGET_CORE_TMR_H | ||
3 | |||
4 | /* task management function values */ | ||
5 | #ifdef ABORT_TASK | ||
6 | #undef ABORT_TASK | ||
7 | #endif /* ABORT_TASK */ | ||
8 | #define ABORT_TASK 1 | ||
9 | #ifdef ABORT_TASK_SET | ||
10 | #undef ABORT_TASK_SET | ||
11 | #endif /* ABORT_TASK_SET */ | ||
12 | #define ABORT_TASK_SET 2 | ||
13 | #ifdef CLEAR_ACA | ||
14 | #undef CLEAR_ACA | ||
15 | #endif /* CLEAR_ACA */ | ||
16 | #define CLEAR_ACA 3 | ||
17 | #ifdef CLEAR_TASK_SET | ||
18 | #undef CLEAR_TASK_SET | ||
19 | #endif /* CLEAR_TASK_SET */ | ||
20 | #define CLEAR_TASK_SET 4 | ||
21 | #define LUN_RESET 5 | ||
22 | #define TARGET_WARM_RESET 6 | ||
23 | #define TARGET_COLD_RESET 7 | ||
24 | #define TASK_REASSIGN 8 | ||
25 | |||
26 | /* task management response values */ | ||
27 | #define TMR_FUNCTION_COMPLETE 0 | ||
28 | #define TMR_TASK_DOES_NOT_EXIST 1 | ||
29 | #define TMR_LUN_DOES_NOT_EXIST 2 | ||
30 | #define TMR_TASK_STILL_ALLEGIANT 3 | ||
31 | #define TMR_TASK_FAILOVER_NOT_SUPPORTED 4 | ||
32 | #define TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED 5 | ||
33 | #define TMR_FUNCTION_AUTHORIZATION_FAILED 6 | ||
34 | #define TMR_FUNCTION_REJECTED 255 | ||
35 | |||
36 | extern struct kmem_cache *se_tmr_req_cache; | ||
37 | |||
38 | extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8); | ||
39 | extern void core_tmr_release_req(struct se_tmr_req *); | ||
40 | extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *, | ||
41 | struct list_head *, struct se_cmd *); | ||
42 | |||
43 | #endif /* TARGET_CORE_TMR_H */ | ||
diff --git a/include/target/target_core_tpg.h b/include/target/target_core_tpg.h new file mode 100644 index 000000000000..77e18729c4c1 --- /dev/null +++ b/include/target/target_core_tpg.h | |||
@@ -0,0 +1,35 @@ | |||
1 | #ifndef TARGET_CORE_TPG_H | ||
2 | #define TARGET_CORE_TPG_H | ||
3 | |||
4 | extern struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, | ||
5 | const char *); | ||
6 | extern struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg, | ||
7 | unsigned char *); | ||
8 | extern void core_tpg_add_node_to_devs(struct se_node_acl *, | ||
9 | struct se_portal_group *); | ||
10 | extern struct se_node_acl *core_tpg_check_initiator_node_acl( | ||
11 | struct se_portal_group *, | ||
12 | unsigned char *); | ||
13 | extern void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *); | ||
14 | extern void core_tpg_wait_for_mib_ref(struct se_node_acl *); | ||
15 | extern void core_tpg_clear_object_luns(struct se_portal_group *); | ||
16 | extern struct se_node_acl *core_tpg_add_initiator_node_acl( | ||
17 | struct se_portal_group *, | ||
18 | struct se_node_acl *, | ||
19 | const char *, u32); | ||
20 | extern int core_tpg_del_initiator_node_acl(struct se_portal_group *, | ||
21 | struct se_node_acl *, int); | ||
22 | extern int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *, | ||
23 | unsigned char *, u32, int); | ||
24 | extern int core_tpg_register(struct target_core_fabric_ops *, | ||
25 | struct se_wwn *, | ||
26 | struct se_portal_group *, void *, | ||
27 | int); | ||
28 | extern int core_tpg_deregister(struct se_portal_group *); | ||
29 | extern struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32); | ||
30 | extern int core_tpg_post_addlun(struct se_portal_group *, struct se_lun *, u32, | ||
31 | void *); | ||
32 | extern struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32, int *); | ||
33 | extern int core_tpg_post_dellun(struct se_portal_group *, struct se_lun *); | ||
34 | |||
35 | #endif /* TARGET_CORE_TPG_H */ | ||
diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h new file mode 100644 index 000000000000..66f44e56eb80 --- /dev/null +++ b/include/target/target_core_transport.h | |||
@@ -0,0 +1,351 @@ | |||
1 | #ifndef TARGET_CORE_TRANSPORT_H | ||
2 | #define TARGET_CORE_TRANSPORT_H | ||
3 | |||
4 | #define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION | ||
5 | |||
6 | /* Attempts before moving from SHORT to LONG */ | ||
7 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | ||
8 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | ||
9 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | ||
10 | |||
11 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | ||
12 | |||
13 | #define PYX_TRANSPORT_SENT_TO_TRANSPORT 0 | ||
14 | #define PYX_TRANSPORT_WRITE_PENDING 1 | ||
15 | |||
16 | #define PYX_TRANSPORT_UNKNOWN_SAM_OPCODE -1 | ||
17 | #define PYX_TRANSPORT_HBA_QUEUE_FULL -2 | ||
18 | #define PYX_TRANSPORT_REQ_TOO_MANY_SECTORS -3 | ||
19 | #define PYX_TRANSPORT_OUT_OF_MEMORY_RESOURCES -4 | ||
20 | #define PYX_TRANSPORT_INVALID_CDB_FIELD -5 | ||
21 | #define PYX_TRANSPORT_INVALID_PARAMETER_LIST -6 | ||
22 | #define PYX_TRANSPORT_LU_COMM_FAILURE -7 | ||
23 | #define PYX_TRANSPORT_UNKNOWN_MODE_PAGE -8 | ||
24 | #define PYX_TRANSPORT_WRITE_PROTECTED -9 | ||
25 | #define PYX_TRANSPORT_TASK_TIMEOUT -10 | ||
26 | #define PYX_TRANSPORT_RESERVATION_CONFLICT -11 | ||
27 | #define PYX_TRANSPORT_ILLEGAL_REQUEST -12 | ||
28 | #define PYX_TRANSPORT_USE_SENSE_REASON -13 | ||
29 | |||
30 | #ifndef SAM_STAT_RESERVATION_CONFLICT | ||
31 | #define SAM_STAT_RESERVATION_CONFLICT 0x18 | ||
32 | #endif | ||
33 | |||
34 | #define TRANSPORT_PLUGIN_FREE 0 | ||
35 | #define TRANSPORT_PLUGIN_REGISTERED 1 | ||
36 | |||
37 | #define TRANSPORT_PLUGIN_PHBA_PDEV 1 | ||
38 | #define TRANSPORT_PLUGIN_VHBA_PDEV 2 | ||
39 | #define TRANSPORT_PLUGIN_VHBA_VDEV 3 | ||
40 | |||
41 | /* For SE OBJ Plugins, in seconds */ | ||
42 | #define TRANSPORT_TIMEOUT_TUR 10 | ||
43 | #define TRANSPORT_TIMEOUT_TYPE_DISK 60 | ||
44 | #define TRANSPORT_TIMEOUT_TYPE_ROM 120 | ||
45 | #define TRANSPORT_TIMEOUT_TYPE_TAPE 600 | ||
46 | #define TRANSPORT_TIMEOUT_TYPE_OTHER 300 | ||
47 | |||
48 | /* For se_task->task_state_flags */ | ||
49 | #define TSF_EXCEPTION_CLEARED 0x01 | ||
50 | |||
51 | /* | ||
52 | * struct se_subsystem_dev->su_dev_flags | ||
53 | */ | ||
54 | #define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001 | ||
55 | #define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002 | ||
56 | #define SDF_USING_UDEV_PATH 0x00000004 | ||
57 | #define SDF_USING_ALIAS 0x00000008 | ||
58 | |||
59 | /* | ||
60 | * struct se_device->dev_flags | ||
61 | */ | ||
62 | #define DF_READ_ONLY 0x00000001 | ||
63 | #define DF_SPC2_RESERVATIONS 0x00000002 | ||
64 | #define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004 | ||
65 | |||
66 | /* struct se_dev_attrib sanity values */ | ||
67 | /* 10 Minutes */ | ||
68 | #define DA_TASK_TIMEOUT_MAX 600 | ||
69 | /* Default max_unmap_lba_count */ | ||
70 | #define DA_MAX_UNMAP_LBA_COUNT 0 | ||
71 | /* Default max_unmap_block_desc_count */ | ||
72 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | ||
73 | /* Default unmap_granularity */ | ||
74 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | ||
75 | /* Default unmap_granularity_alignment */ | ||
76 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | ||
77 | /* Emulation for Direct Page Out */ | ||
78 | #define DA_EMULATE_DPO 0 | ||
79 | /* Emulation for Forced Unit Access WRITEs */ | ||
80 | #define DA_EMULATE_FUA_WRITE 1 | ||
81 | /* Emulation for Forced Unit Access READs */ | ||
82 | #define DA_EMULATE_FUA_READ 0 | ||
83 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ | ||
84 | #define DA_EMULATE_WRITE_CACHE 0 | ||
85 | /* Emulation for UNIT ATTENTION Interlock Control */ | ||
86 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | ||
87 | /* Emulation for TASK_ABORTED status (TAS) by default */ | ||
88 | #define DA_EMULATE_TAS 1 | ||
89 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | ||
90 | #define DA_EMULATE_TPU 0 | ||
91 | /* | ||
92 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | ||
93 | * block/blk-lib.c:blkdev_issue_discard() | ||
94 | */ | ||
95 | #define DA_EMULATE_TPWS 0 | ||
96 | /* No Emulation for PSCSI by default */ | ||
97 | #define DA_EMULATE_RESERVATIONS 0 | ||
98 | /* No Emulation for PSCSI by default */ | ||
99 | #define DA_EMULATE_ALUA 0 | ||
100 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | ||
101 | #define DA_ENFORCE_PR_ISIDS 1 | ||
102 | #define DA_STATUS_MAX_SECTORS_MIN 16 | ||
103 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | ||
104 | |||
105 | #define SE_MODE_PAGE_BUF 512 | ||
106 | |||
107 | #define MOD_MAX_SECTORS(ms, bs) (ms % (PAGE_SIZE / bs)) | ||
108 | |||
109 | struct se_mem; | ||
110 | struct se_subsystem_api; | ||
111 | |||
112 | extern int init_se_global(void); | ||
113 | extern void release_se_global(void); | ||
114 | extern void transport_init_queue_obj(struct se_queue_obj *); | ||
115 | extern int transport_subsystem_check_init(void); | ||
116 | extern int transport_subsystem_register(struct se_subsystem_api *); | ||
117 | extern void transport_subsystem_release(struct se_subsystem_api *); | ||
118 | extern void transport_load_plugins(void); | ||
119 | extern struct se_session *transport_init_session(void); | ||
120 | extern void __transport_register_session(struct se_portal_group *, | ||
121 | struct se_node_acl *, | ||
122 | struct se_session *, void *); | ||
123 | extern void transport_register_session(struct se_portal_group *, | ||
124 | struct se_node_acl *, | ||
125 | struct se_session *, void *); | ||
126 | extern void transport_free_session(struct se_session *); | ||
127 | extern void transport_deregister_session_configfs(struct se_session *); | ||
128 | extern void transport_deregister_session(struct se_session *); | ||
129 | extern void transport_cmd_finish_abort(struct se_cmd *, int); | ||
130 | extern void transport_cmd_finish_abort_tmr(struct se_cmd *); | ||
131 | extern void transport_complete_sync_cache(struct se_cmd *, int); | ||
132 | extern void transport_complete_task(struct se_task *, int); | ||
133 | extern void transport_add_task_to_execute_queue(struct se_task *, | ||
134 | struct se_task *, | ||
135 | struct se_device *); | ||
136 | unsigned char *transport_dump_cmd_direction(struct se_cmd *); | ||
137 | extern void transport_dump_dev_state(struct se_device *, char *, int *); | ||
138 | extern void transport_dump_dev_info(struct se_device *, struct se_lun *, | ||
139 | unsigned long long, char *, int *); | ||
140 | extern void transport_dump_vpd_proto_id(struct t10_vpd *, | ||
141 | unsigned char *, int); | ||
142 | extern void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *); | ||
143 | extern int transport_dump_vpd_assoc(struct t10_vpd *, | ||
144 | unsigned char *, int); | ||
145 | extern int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *); | ||
146 | extern int transport_dump_vpd_ident_type(struct t10_vpd *, | ||
147 | unsigned char *, int); | ||
148 | extern int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *); | ||
149 | extern int transport_dump_vpd_ident(struct t10_vpd *, | ||
150 | unsigned char *, int); | ||
151 | extern int transport_set_vpd_ident(struct t10_vpd *, unsigned char *); | ||
152 | extern struct se_device *transport_add_device_to_core_hba(struct se_hba *, | ||
153 | struct se_subsystem_api *, | ||
154 | struct se_subsystem_dev *, u32, | ||
155 | void *, struct se_dev_limits *, | ||
156 | const char *, const char *); | ||
157 | extern void transport_device_setup_cmd(struct se_cmd *); | ||
158 | extern void transport_init_se_cmd(struct se_cmd *, | ||
159 | struct target_core_fabric_ops *, | ||
160 | struct se_session *, u32, int, int, | ||
161 | unsigned char *); | ||
162 | extern void transport_free_se_cmd(struct se_cmd *); | ||
163 | extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *); | ||
164 | extern int transport_generic_handle_cdb(struct se_cmd *); | ||
165 | extern int transport_generic_handle_cdb_map(struct se_cmd *); | ||
166 | extern int transport_generic_handle_data(struct se_cmd *); | ||
167 | extern void transport_new_cmd_failure(struct se_cmd *); | ||
168 | extern int transport_generic_handle_tmr(struct se_cmd *); | ||
169 | extern void __transport_stop_task_timer(struct se_task *, unsigned long *); | ||
170 | extern unsigned char transport_asciihex_to_binaryhex(unsigned char val[2]); | ||
171 | extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32, | ||
172 | struct scatterlist *, u32); | ||
173 | extern int transport_clear_lun_from_sessions(struct se_lun *); | ||
174 | extern int transport_check_aborted_status(struct se_cmd *, int); | ||
175 | extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int); | ||
176 | extern void transport_send_task_abort(struct se_cmd *); | ||
177 | extern void transport_release_cmd_to_pool(struct se_cmd *); | ||
178 | extern void transport_generic_free_cmd(struct se_cmd *, int, int, int); | ||
179 | extern void transport_generic_wait_for_cmds(struct se_cmd *, int); | ||
180 | extern u32 transport_calc_sg_num(struct se_task *, struct se_mem *, u32); | ||
181 | extern int transport_map_mem_to_sg(struct se_task *, struct list_head *, | ||
182 | void *, struct se_mem *, | ||
183 | struct se_mem **, u32 *, u32 *); | ||
184 | extern void transport_do_task_sg_chain(struct se_cmd *); | ||
185 | extern void transport_generic_process_write(struct se_cmd *); | ||
186 | extern int transport_generic_do_tmr(struct se_cmd *); | ||
187 | /* From target_core_alua.c */ | ||
188 | extern int core_alua_check_nonop_delay(struct se_cmd *); | ||
189 | |||
190 | /* | ||
191 | * Each se_transport_task_t can have N number of possible struct se_task's | ||
192 | * for the storage transport(s) to possibly execute. | ||
193 | * Used primarily for splitting up CDBs that exceed the physical storage | ||
194 | * HBA's maximum sector count per task. | ||
195 | */ | ||
196 | struct se_mem { | ||
197 | struct page *se_page; | ||
198 | u32 se_len; | ||
199 | u32 se_off; | ||
200 | struct list_head se_list; | ||
201 | } ____cacheline_aligned; | ||
202 | |||
203 | /* | ||
204 | * Each type of disk transport supported MUST have a template defined | ||
205 | * within its .h file. | ||
206 | */ | ||
207 | struct se_subsystem_api { | ||
208 | /* | ||
209 | * The Name. :-) | ||
210 | */ | ||
211 | char name[16]; | ||
212 | /* | ||
213 | * Transport Type. | ||
214 | */ | ||
215 | u8 transport_type; | ||
216 | /* | ||
217 | * struct module for struct se_hba references | ||
218 | */ | ||
219 | struct module *owner; | ||
220 | /* | ||
221 | * Used for global se_subsystem_api list_head | ||
222 | */ | ||
223 | struct list_head sub_api_list; | ||
224 | /* | ||
225 | * For SCF_SCSI_NON_DATA_CDB | ||
226 | */ | ||
227 | int (*cdb_none)(struct se_task *); | ||
228 | /* | ||
229 | * For SCF_SCSI_CONTROL_NONSG_IO_CDB | ||
230 | */ | ||
231 | int (*map_task_non_SG)(struct se_task *); | ||
232 | /* | ||
233 | * For SCF_SCSI_DATA_SG_IO_CDB and SCF_SCSI_CONTROL_SG_IO_CDB | ||
234 | */ | ||
235 | int (*map_task_SG)(struct se_task *); | ||
236 | /* | ||
237 | * attach_hba(): | ||
238 | */ | ||
239 | int (*attach_hba)(struct se_hba *, u32); | ||
240 | /* | ||
241 | * detach_hba(): | ||
242 | */ | ||
243 | void (*detach_hba)(struct se_hba *); | ||
244 | /* | ||
245 | * pmode_hba(): Used for TCM/pSCSI subsystem plugin HBA -> | ||
246 | * Linux/SCSI struct Scsi_Host passthrough | ||
247 | */ | ||
248 | int (*pmode_enable_hba)(struct se_hba *, unsigned long); | ||
249 | /* | ||
250 | * allocate_virtdevice(): | ||
251 | */ | ||
252 | void *(*allocate_virtdevice)(struct se_hba *, const char *); | ||
253 | /* | ||
254 | * create_virtdevice(): Only for Virtual HBAs | ||
255 | */ | ||
256 | struct se_device *(*create_virtdevice)(struct se_hba *, | ||
257 | struct se_subsystem_dev *, void *); | ||
258 | /* | ||
259 | * free_device(): | ||
260 | */ | ||
261 | void (*free_device)(void *); | ||
262 | |||
263 | /* | ||
264 | * dpo_emulated(): | ||
265 | */ | ||
266 | int (*dpo_emulated)(struct se_device *); | ||
267 | /* | ||
268 | * fua_write_emulated(): | ||
269 | */ | ||
270 | int (*fua_write_emulated)(struct se_device *); | ||
271 | /* | ||
272 | * fua_read_emulated(): | ||
273 | */ | ||
274 | int (*fua_read_emulated)(struct se_device *); | ||
275 | /* | ||
276 | * write_cache_emulated(): | ||
277 | */ | ||
278 | int (*write_cache_emulated)(struct se_device *); | ||
279 | /* | ||
280 | * transport_complete(): | ||
281 | * | ||
282 | * Use transport_generic_complete() for majority of DAS transport | ||
283 | * drivers. Provided out of convenience. | ||
284 | */ | ||
285 | int (*transport_complete)(struct se_task *task); | ||
286 | struct se_task *(*alloc_task)(struct se_cmd *); | ||
287 | /* | ||
288 | * do_task(): | ||
289 | */ | ||
290 | int (*do_task)(struct se_task *); | ||
291 | /* | ||
292 | * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate | ||
293 | * UNMAP and WRITE_SAME_* w/ UNMAP=1 <-> Linux/Block Discard | ||
294 | */ | ||
295 | int (*do_discard)(struct se_device *, sector_t, u32); | ||
296 | /* | ||
297 | * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate | ||
298 | * SYNCHRONIZE_CACHE_* <-> Linux/Block blkdev_issue_flush() | ||
299 | */ | ||
300 | void (*do_sync_cache)(struct se_task *); | ||
301 | /* | ||
302 | * free_task(): | ||
303 | */ | ||
304 | void (*free_task)(struct se_task *); | ||
305 | /* | ||
306 | * check_configfs_dev_params(): | ||
307 | */ | ||
308 | ssize_t (*check_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *); | ||
309 | /* | ||
310 | * set_configfs_dev_params(): | ||
311 | */ | ||
312 | ssize_t (*set_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *, | ||
313 | const char *, ssize_t); | ||
314 | /* | ||
315 | * show_configfs_dev_params(): | ||
316 | */ | ||
317 | ssize_t (*show_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *, | ||
318 | char *); | ||
319 | /* | ||
320 | * get_cdb(): | ||
321 | */ | ||
322 | unsigned char *(*get_cdb)(struct se_task *); | ||
323 | /* | ||
324 | * get_device_rev(): | ||
325 | */ | ||
326 | u32 (*get_device_rev)(struct se_device *); | ||
327 | /* | ||
328 | * get_device_type(): | ||
329 | */ | ||
330 | u32 (*get_device_type)(struct se_device *); | ||
331 | /* | ||
332 | * Get the sector_t from a subsystem backstore.. | ||
333 | */ | ||
334 | sector_t (*get_blocks)(struct se_device *); | ||
335 | /* | ||
336 | * do_se_mem_map(): | ||
337 | */ | ||
338 | int (*do_se_mem_map)(struct se_task *, struct list_head *, void *, | ||
339 | struct se_mem *, struct se_mem **, u32 *, u32 *); | ||
340 | /* | ||
341 | * get_sense_buffer(): | ||
342 | */ | ||
343 | unsigned char *(*get_sense_buffer)(struct se_task *); | ||
344 | } ____cacheline_aligned; | ||
345 | |||
346 | #define TRANSPORT(dev) ((dev)->transport) | ||
347 | #define HBA_TRANSPORT(hba) ((hba)->transport) | ||
348 | |||
349 | extern struct se_global *se_global; | ||
350 | |||
351 | #endif /* TARGET_CORE_TRANSPORT_H */ | ||