1 #ifndef TARGET_CORE_BASE_H
2 #define TARGET_CORE_BASE_H
5 #include <linux/configfs.h>
6 #include <linux/dma-mapping.h>
7 #include <linux/blkdev.h>
8 #include <scsi/scsi_cmnd.h>
12 #define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml"
13 #define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
15 /* Maximum Number of LUNs per Target Portal Group */
16 /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
17 #define TRANSPORT_MAX_LUNS_PER_TPG 256
19 * By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
21 * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and
22 * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use
23 * 16-byte CDBs by default and require an extra allocation for
24 * 32-byte CDBs to because of legacy issues.
26 * Within TCM Core there are no such legacy limitiations, so we go ahead
27 * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size()
28 * within all TCM Core and subsystem plugin code.
30 #define TCM_MAX_COMMAND_SIZE 32
32 * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently
33 * defined 96, but the real limit is 252 (or 260 including the header)
35 #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE
36 /* Used by transport_send_check_condition_and_sense() */
37 #define SPC_SENSE_KEY_OFFSET 2
38 #define SPC_ADD_SENSE_LEN_OFFSET 7
39 #define SPC_ASC_KEY_OFFSET 12
40 #define SPC_ASCQ_KEY_OFFSET 13
41 #define TRANSPORT_IQN_LEN 224
42 /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */
43 #define LU_GROUP_NAME_BUF 256
44 /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */
45 #define TG_PT_GROUP_NAME_BUF 256
46 /* Used to parse VPD into struct t10_vpd */
47 #define VPD_TMP_BUF_SIZE 128
48 /* Used by transport_generic_cmd_sequencer() */
49 #define READ_BLOCK_LEN 6
50 #define READ_CAP_LEN 8
51 #define READ_POSITION_LEN 20
52 #define INQUIRY_LEN 36
53 /* Used by transport_get_inquiry_vpd_serial() */
54 #define INQUIRY_VPD_SERIAL_LEN 254
55 /* Used by transport_get_inquiry_vpd_device_ident() */
56 #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
58 /* Attempts before moving from SHORT to LONG */
59 #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3
60 #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */
61 #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */
63 #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
66 * struct se_subsystem_dev->su_dev_flags
68 #define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001
69 #define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002
70 #define SDF_USING_UDEV_PATH 0x00000004
71 #define SDF_USING_ALIAS 0x00000008
74 * struct se_device->dev_flags
76 #define DF_READ_ONLY 0x00000001
77 #define DF_SPC2_RESERVATIONS 0x00000002
78 #define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004
80 /* struct se_dev_attrib sanity values */
81 /* Default max_unmap_lba_count */
82 #define DA_MAX_UNMAP_LBA_COUNT 0
83 /* Default max_unmap_block_desc_count */
84 #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
85 /* Default unmap_granularity */
86 #define DA_UNMAP_GRANULARITY_DEFAULT 0
87 /* Default unmap_granularity_alignment */
88 #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
89 /* Emulation for Direct Page Out */
90 #define DA_EMULATE_DPO 0
91 /* Emulation for Forced Unit Access WRITEs */
92 #define DA_EMULATE_FUA_WRITE 1
93 /* Emulation for Forced Unit Access READs */
94 #define DA_EMULATE_FUA_READ 0
95 /* Emulation for WriteCache and SYNCHRONIZE_CACHE */
96 #define DA_EMULATE_WRITE_CACHE 0
97 /* Emulation for UNIT ATTENTION Interlock Control */
98 #define DA_EMULATE_UA_INTLLCK_CTRL 0
99 /* Emulation for TASK_ABORTED status (TAS) by default */
100 #define DA_EMULATE_TAS 1
101 /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
102 #define DA_EMULATE_TPU 0
104 * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
105 * block/blk-lib.c:blkdev_issue_discard()
107 #define DA_EMULATE_TPWS 0
108 /* No Emulation for PSCSI by default */
109 #define DA_EMULATE_RESERVATIONS 0
110 /* No Emulation for PSCSI by default */
111 #define DA_EMULATE_ALUA 0
112 /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
113 #define DA_ENFORCE_PR_ISIDS 1
114 #define DA_STATUS_MAX_SECTORS_MIN 16
115 #define DA_STATUS_MAX_SECTORS_MAX 8192
116 /* By default don't report non-rotating (solid state) medium */
117 #define DA_IS_NONROT 0
118 /* Queue Algorithm Modifier default for restricted reordering in control mode page */
119 #define DA_EMULATE_REST_REORD 0
121 #define SE_MODE_PAGE_BUF 512
124 /* struct se_hba->hba_flags */
125 enum hba_flags_table
{
126 HBA_FLAGS_INTERNAL_USE
= 0x01,
127 HBA_FLAGS_PSCSI_MODE
= 0x02,
130 /* struct se_lun->lun_status */
131 enum transport_lun_status_table
{
132 TRANSPORT_LUN_STATUS_FREE
= 0,
133 TRANSPORT_LUN_STATUS_ACTIVE
= 1,
136 /* struct se_portal_group->se_tpg_type */
137 enum transport_tpg_type_table
{
138 TRANSPORT_TPG_TYPE_NORMAL
= 0,
139 TRANSPORT_TPG_TYPE_DISCOVERY
= 1,
142 /* struct se_task->task_flags */
144 TF_ACTIVE
= (1 << 0),
146 TF_REQUEST_STOP
= (1 << 2),
147 TF_HAS_SENSE
= (1 << 3),
150 /* Special transport agnostic struct se_cmd->t_states */
151 enum transport_state_table
{
152 TRANSPORT_NO_STATE
= 0,
153 TRANSPORT_NEW_CMD
= 1,
154 TRANSPORT_WRITE_PENDING
= 3,
155 TRANSPORT_PROCESS_WRITE
= 4,
156 TRANSPORT_PROCESSING
= 5,
157 TRANSPORT_COMPLETE
= 6,
158 TRANSPORT_PROCESS_TMR
= 9,
159 TRANSPORT_ISTATE_PROCESSING
= 11,
160 TRANSPORT_NEW_CMD_MAP
= 16,
161 TRANSPORT_COMPLETE_QF_WP
= 18,
162 TRANSPORT_COMPLETE_QF_OK
= 19,
165 /* Used for struct se_cmd->se_cmd_flags */
166 enum se_cmd_flags_table
{
167 SCF_SUPPORTED_SAM_OPCODE
= 0x00000001,
168 SCF_TRANSPORT_TASK_SENSE
= 0x00000002,
169 SCF_EMULATED_TASK_SENSE
= 0x00000004,
170 SCF_SCSI_DATA_SG_IO_CDB
= 0x00000008,
171 SCF_SCSI_CONTROL_SG_IO_CDB
= 0x00000010,
172 SCF_SCSI_NON_DATA_CDB
= 0x00000020,
173 SCF_SCSI_TMR_CDB
= 0x00000040,
174 SCF_SCSI_CDB_EXCEPTION
= 0x00000080,
175 SCF_SCSI_RESERVATION_CONFLICT
= 0x00000100,
176 SCF_FUA
= 0x00000200,
177 SCF_SE_LUN_CMD
= 0x00000800,
178 SCF_SE_ALLOW_EOO
= 0x00001000,
179 SCF_BIDI
= 0x00002000,
180 SCF_SENT_CHECK_CONDITION
= 0x00004000,
181 SCF_OVERFLOW_BIT
= 0x00008000,
182 SCF_UNDERFLOW_BIT
= 0x00010000,
183 SCF_SENT_DELAYED_TAS
= 0x00020000,
184 SCF_ALUA_NON_OPTIMIZED
= 0x00040000,
185 SCF_DELAYED_CMD_FROM_SAM_ATTR
= 0x00080000,
186 SCF_UNUSED
= 0x00100000,
187 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC
= 0x00200000,
188 SCF_ACK_KREF
= 0x00400000,
191 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
192 enum transport_lunflags_table
{
193 TRANSPORT_LUNFLAGS_NO_ACCESS
= 0x00,
194 TRANSPORT_LUNFLAGS_INITIATOR_ACCESS
= 0x01,
195 TRANSPORT_LUNFLAGS_READ_ONLY
= 0x02,
196 TRANSPORT_LUNFLAGS_READ_WRITE
= 0x04,
199 /* struct se_device->dev_status */
200 enum transport_device_status_table
{
201 TRANSPORT_DEVICE_ACTIVATED
= 0x01,
202 TRANSPORT_DEVICE_DEACTIVATED
= 0x02,
203 TRANSPORT_DEVICE_QUEUE_FULL
= 0x04,
204 TRANSPORT_DEVICE_SHUTDOWN
= 0x08,
205 TRANSPORT_DEVICE_OFFLINE_ACTIVATED
= 0x10,
206 TRANSPORT_DEVICE_OFFLINE_DEACTIVATED
= 0x20,
210 * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason
211 * to signal which ASC/ASCQ sense payload should be built.
213 enum tcm_sense_reason_table
{
214 TCM_NON_EXISTENT_LUN
= 0x01,
215 TCM_UNSUPPORTED_SCSI_OPCODE
= 0x02,
216 TCM_INCORRECT_AMOUNT_OF_DATA
= 0x03,
217 TCM_UNEXPECTED_UNSOLICITED_DATA
= 0x04,
218 TCM_SERVICE_CRC_ERROR
= 0x05,
219 TCM_SNACK_REJECTED
= 0x06,
220 TCM_SECTOR_COUNT_TOO_MANY
= 0x07,
221 TCM_INVALID_CDB_FIELD
= 0x08,
222 TCM_INVALID_PARAMETER_LIST
= 0x09,
223 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE
= 0x0a,
224 TCM_UNKNOWN_MODE_PAGE
= 0x0b,
225 TCM_WRITE_PROTECTED
= 0x0c,
226 TCM_CHECK_CONDITION_ABORT_CMD
= 0x0d,
227 TCM_CHECK_CONDITION_UNIT_ATTENTION
= 0x0e,
228 TCM_CHECK_CONDITION_NOT_READY
= 0x0f,
229 TCM_RESERVATION_CONFLICT
= 0x10,
232 enum target_sc_flags_table
{
233 TARGET_SCF_BIDI_OP
= 0x01,
234 TARGET_SCF_ACK_KREF
= 0x02,
237 /* fabric independent task management function values */
238 enum tcm_tmreq_table
{
240 TMR_ABORT_TASK_SET
= 2,
242 TMR_CLEAR_TASK_SET
= 4,
244 TMR_TARGET_WARM_RESET
= 6,
245 TMR_TARGET_COLD_RESET
= 7,
246 TMR_FABRIC_TMR
= 255,
249 /* fabric independent task management response values */
250 enum tcm_tmrsp_table
{
251 TMR_FUNCTION_COMPLETE
= 0,
252 TMR_TASK_DOES_NOT_EXIST
= 1,
253 TMR_LUN_DOES_NOT_EXIST
= 2,
254 TMR_TASK_STILL_ALLEGIANT
= 3,
255 TMR_TASK_FAILOVER_NOT_SUPPORTED
= 4,
256 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED
= 5,
257 TMR_FUNCTION_AUTHORIZATION_FAILED
= 6,
258 TMR_FUNCTION_REJECTED
= 255,
262 atomic_t obj_access_count
;
266 * Used by TCM Core internally to signal if ALUA emulation is enabled or
267 * disabled, or running in with TCM/pSCSI passthrough mode
270 SPC_ALUA_PASSTHROUGH
,
276 * Used by TCM Core internally to signal if SAM Task Attribute emulation
277 * is enabled or disabled, or running in with TCM/pSCSI passthrough mode
280 SAM_TASK_ATTR_PASSTHROUGH
,
281 SAM_TASK_ATTR_UNTAGGED
,
282 SAM_TASK_ATTR_EMULATED
283 } t10_task_attr_index_t
;
286 * Used for target SCSI statistics
291 SCSI_AUTH_INTR_INDEX
,
298 t10_alua_index_t alua_type
;
299 /* ALUA Target Port Group ID */
300 u16 alua_tg_pt_gps_counter
;
301 u32 alua_tg_pt_gps_count
;
302 spinlock_t tg_pt_gps_lock
;
303 struct se_subsystem_dev
*t10_sub_dev
;
304 /* Used for default ALUA Target Port Group */
305 struct t10_alua_tg_pt_gp
*default_tg_pt_gp
;
306 /* Used for default ALUA Target Port Group ConfigFS group */
307 struct config_group alua_tg_pt_gps_group
;
308 int (*alua_state_check
)(struct se_cmd
*, unsigned char *, u8
*);
309 struct list_head tg_pt_gps_list
;
312 struct t10_alua_lu_gp
{
316 atomic_t lu_gp_ref_cnt
;
317 spinlock_t lu_gp_lock
;
318 struct config_group lu_gp_group
;
319 struct list_head lu_gp_node
;
320 struct list_head lu_gp_mem_list
;
323 struct t10_alua_lu_gp_member
{
325 atomic_t lu_gp_mem_ref_cnt
;
326 spinlock_t lu_gp_mem_lock
;
327 struct t10_alua_lu_gp
*lu_gp
;
328 struct se_device
*lu_gp_mem_dev
;
329 struct list_head lu_gp_mem_list
;
332 struct t10_alua_tg_pt_gp
{
334 int tg_pt_gp_valid_id
;
335 int tg_pt_gp_alua_access_status
;
336 int tg_pt_gp_alua_access_type
;
337 int tg_pt_gp_nonop_delay_msecs
;
338 int tg_pt_gp_trans_delay_msecs
;
340 int tg_pt_gp_write_metadata
;
341 /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
342 #define ALUA_MD_BUF_LEN 1024
343 u32 tg_pt_gp_md_buf_len
;
344 u32 tg_pt_gp_members
;
345 atomic_t tg_pt_gp_alua_access_state
;
346 atomic_t tg_pt_gp_ref_cnt
;
347 spinlock_t tg_pt_gp_lock
;
348 struct mutex tg_pt_gp_md_mutex
;
349 struct se_subsystem_dev
*tg_pt_gp_su_dev
;
350 struct config_group tg_pt_gp_group
;
351 struct list_head tg_pt_gp_list
;
352 struct list_head tg_pt_gp_mem_list
;
355 struct t10_alua_tg_pt_gp_member
{
357 atomic_t tg_pt_gp_mem_ref_cnt
;
358 spinlock_t tg_pt_gp_mem_lock
;
359 struct t10_alua_tg_pt_gp
*tg_pt_gp
;
360 struct se_port
*tg_pt
;
361 struct list_head tg_pt_gp_mem_list
;
365 unsigned char device_identifier
[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN
];
366 int protocol_identifier_set
;
367 u32 protocol_identifier
;
368 u32 device_identifier_code_set
;
370 u32 device_identifier_type
;
371 struct list_head vpd_list
;
378 char unit_serial
[INQUIRY_VPD_SERIAL_LEN
];
379 spinlock_t t10_vpd_lock
;
380 struct se_subsystem_dev
*t10_sub_dev
;
381 struct config_group t10_wwn_group
;
382 struct list_head t10_vpd_list
;
387 * Used by TCM Core internally to signal if >= SPC-3 persistent reservations
388 * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
394 SPC3_PERSISTENT_RESERVATIONS
395 } t10_reservations_index_t
;
397 struct t10_pr_registration
{
398 /* Used for fabrics that contain WWN+ISID */
399 #define PR_REG_ISID_LEN 16
400 /* PR_REG_ISID_LEN + ',i,0x' */
401 #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
402 char pr_reg_isid
[PR_REG_ISID_LEN
];
403 /* Used during APTPL metadata reading */
404 #define PR_APTPL_MAX_IPORT_LEN 256
405 unsigned char pr_iport
[PR_APTPL_MAX_IPORT_LEN
];
406 /* Used during APTPL metadata reading */
407 #define PR_APTPL_MAX_TPORT_LEN 256
408 unsigned char pr_tport
[PR_APTPL_MAX_TPORT_LEN
];
409 /* For writing out live meta data */
410 unsigned char *pr_aptpl_buf
;
413 /* Reservation effects all target ports */
414 int pr_reg_all_tg_pt
;
415 /* Activate Persistence across Target Power Loss */
420 /* Used for fabric initiator WWPNs using a ISID */
421 bool isid_present_at_reg
;
422 u32 pr_res_mapped_lun
;
423 u32 pr_aptpl_target_lun
;
424 u32 pr_res_generation
;
427 atomic_t pr_res_holders
;
428 struct se_node_acl
*pr_reg_nacl
;
429 struct se_dev_entry
*pr_reg_deve
;
430 struct se_lun
*pr_reg_tg_pt_lun
;
431 struct list_head pr_reg_list
;
432 struct list_head pr_reg_abort_list
;
433 struct list_head pr_reg_aptpl_list
;
434 struct list_head pr_reg_atp_list
;
435 struct list_head pr_reg_atp_mem_list
;
439 * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS,
440 * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c:
441 * core_setup_reservations()
443 struct t10_reservation_ops
{
444 int (*t10_reservation_check
)(struct se_cmd
*, u32
*);
445 int (*t10_seq_non_holder
)(struct se_cmd
*, unsigned char *, u32
);
446 int (*t10_pr_register
)(struct se_cmd
*);
447 int (*t10_pr_clear
)(struct se_cmd
*);
450 struct t10_reservation
{
451 /* Reservation effects all target ports */
453 /* Activate Persistence across Target Power Loss enabled
456 /* Used by struct t10_reservation->pr_aptpl_buf_len */
457 #define PR_APTPL_BUF_LEN 8192
458 u32 pr_aptpl_buf_len
;
460 t10_reservations_index_t res_type
;
461 spinlock_t registration_lock
;
462 spinlock_t aptpl_reg_lock
;
464 * This will always be set by one individual I_T Nexus.
465 * However with all_tg_pt=1, other I_T Nexus from the
466 * same initiator can access PR reg/res info on a different
469 * There is also the 'All Registrants' case, where there is
470 * a single *pr_res_holder of the reservation, but all
471 * registrations are considered reservation holders.
473 struct se_node_acl
*pr_res_holder
;
474 struct list_head registration_list
;
475 struct list_head aptpl_reg_list
;
476 struct t10_reservation_ops pr_ops
;
479 struct se_queue_obj
{
481 spinlock_t cmd_queue_lock
;
482 struct list_head qobj_list
;
483 wait_queue_head_t thread_wq
;
487 unsigned long long task_lba
;
490 struct se_cmd
*task_se_cmd
;
491 struct scatterlist
*task_sg
;
495 enum dma_data_direction task_data_direction
;
496 struct list_head t_list
;
497 struct list_head t_execute_list
;
498 struct list_head t_state_list
;
500 struct completion task_stop_comp
;
504 /* Task Management function to be performed */
506 /* Task Management response to send */
509 /* Reference to ITT that Task Mgmt should be performed */
511 /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */
513 void *fabric_tmr_ptr
;
514 struct se_cmd
*task_cmd
;
515 struct se_cmd
*ref_cmd
;
516 struct se_device
*tmr_dev
;
517 struct se_lun
*tmr_lun
;
518 struct list_head tmr_list
;
522 /* SAM response code being sent to initiator */
526 u8 scsi_sense_reason
;
527 u16 scsi_sense_length
;
528 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
529 int alua_nonop_delay
;
530 /* See include/linux/dma-mapping.h */
531 enum dma_data_direction data_direction
;
532 /* For SAM Task Attribute */
534 /* Transport protocol dependent state, see transport_state_table */
535 enum transport_state_table t_state
;
536 /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
537 unsigned check_release
:1;
538 unsigned cmd_wait_set
:1;
539 /* See se_cmd_flags_table */
542 /* Total size in bytes associated with command */
544 /* SCSI Presented Data Transfer Length */
548 /* Persistent Reservation key */
550 /* Used for sense data */
552 struct list_head se_delayed_node
;
553 struct list_head se_lun_node
;
554 struct list_head se_qf_node
;
555 struct se_device
*se_dev
;
556 struct se_dev_entry
*se_deve
;
557 struct se_lun
*se_lun
;
558 /* Only used for internal passthrough and legacy TCM fabric modules */
559 struct se_session
*se_sess
;
560 struct se_tmr_req
*se_tmr_req
;
561 struct list_head se_queue_node
;
562 struct list_head se_cmd_list
;
563 struct completion cmd_wait_comp
;
564 struct kref cmd_kref
;
565 struct target_core_fabric_ops
*se_tfo
;
566 int (*execute_task
)(struct se_task
*);
567 void (*transport_complete_callback
)(struct se_cmd
*);
569 unsigned char *t_task_cdb
;
570 unsigned char __t_task_cdb
[TCM_MAX_COMMAND_SIZE
];
571 unsigned long long t_task_lba
;
572 u32 t_tasks_sg_chained_no
;
575 atomic_t t_task_cdbs_left
;
576 atomic_t t_task_cdbs_ex_left
;
577 atomic_t t_task_cdbs_sent
;
578 unsigned int transport_state
;
579 #define CMD_T_ABORTED (1 << 0)
580 #define CMD_T_ACTIVE (1 << 1)
581 #define CMD_T_COMPLETE (1 << 2)
582 #define CMD_T_QUEUED (1 << 3)
583 #define CMD_T_SENT (1 << 4)
584 #define CMD_T_STOP (1 << 5)
585 #define CMD_T_FAILED (1 << 6)
586 #define CMD_T_LUN_STOP (1 << 7)
587 #define CMD_T_LUN_FE_STOP (1 << 8)
588 #define CMD_T_DEV_ACTIVE (1 << 9)
589 spinlock_t t_state_lock
;
590 struct completion t_transport_stop_comp
;
591 struct completion transport_lun_fe_stop_comp
;
592 struct completion transport_lun_stop_comp
;
593 struct scatterlist
*t_tasks_sg_chained
;
595 struct work_struct work
;
597 struct scatterlist
*t_data_sg
;
598 unsigned int t_data_nents
;
600 struct scatterlist
*t_bidi_data_sg
;
601 unsigned int t_bidi_data_nents
;
603 /* Used for BIDI READ */
604 struct list_head t_task_list
;
612 struct se_node_acl
*ua_nacl
;
613 struct list_head ua_dev_list
;
614 struct list_head ua_nacl_list
;
618 char initiatorname
[TRANSPORT_IQN_LEN
];
619 /* Used to signal demo mode created ACL, disabled by default */
620 bool dynamic_node_acl
;
626 spinlock_t stats_lock
;
627 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
628 atomic_t acl_pr_ref_count
;
629 struct se_dev_entry
*device_list
;
630 struct se_session
*nacl_sess
;
631 struct se_portal_group
*se_tpg
;
632 spinlock_t device_list_lock
;
633 spinlock_t nacl_sess_lock
;
634 struct config_group acl_group
;
635 struct config_group acl_attrib_group
;
636 struct config_group acl_auth_group
;
637 struct config_group acl_param_group
;
638 struct config_group acl_fabric_stat_group
;
639 struct config_group
*acl_default_groups
[5];
640 struct list_head acl_list
;
641 struct list_head acl_sess_list
;
645 unsigned sess_tearing_down
:1;
647 struct se_node_acl
*se_node_acl
;
648 struct se_portal_group
*se_tpg
;
649 void *fabric_sess_ptr
;
650 struct list_head sess_list
;
651 struct list_head sess_acl_list
;
652 struct list_head sess_cmd_list
;
653 struct list_head sess_wait_list
;
654 spinlock_t sess_cmd_lock
;
658 struct se_transform_info
;
661 struct se_ml_stat_grps
{
662 struct config_group stat_group
;
663 struct config_group scsi_auth_intr_group
;
664 struct config_group scsi_att_intr_port_group
;
668 char initiatorname
[TRANSPORT_IQN_LEN
];
670 struct se_node_acl
*se_lun_nacl
;
671 struct se_lun
*se_lun
;
672 struct list_head lacl_list
;
673 struct config_group se_lun_group
;
674 struct se_ml_stat_grps ml_stat_grps
;
677 struct se_dev_entry
{
678 bool def_pr_registered
;
679 /* See transport_lunflags_table */
693 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
694 atomic_t pr_ref_count
;
695 struct se_lun_acl
*se_lun_acl
;
697 struct se_lun
*se_lun
;
698 struct list_head alua_port_list
;
699 struct list_head ua_list
;
702 struct se_dev_limits
{
703 /* Max supported HW queue depth */
705 /* Max supported virtual queue depth */
707 /* From include/linux/blkdev.h for the other HW/SW limits. */
708 struct queue_limits limits
;
711 struct se_dev_attrib
{
713 int emulate_fua_write
;
714 int emulate_fua_read
;
715 int emulate_write_cache
;
716 int emulate_ua_intlck_ctrl
;
720 int emulate_reservations
;
722 int enforce_pr_isids
;
724 int emulate_rest_reord
;
732 u32 max_unmap_lba_count
;
733 u32 max_unmap_block_desc_count
;
734 u32 unmap_granularity
;
735 u32 unmap_granularity_alignment
;
736 struct se_subsystem_dev
*da_sub_dev
;
737 struct config_group da_group
;
740 struct se_dev_stat_grps
{
741 struct config_group stat_group
;
742 struct config_group scsi_dev_group
;
743 struct config_group scsi_tgt_dev_group
;
744 struct config_group scsi_lu_group
;
747 struct se_subsystem_dev
{
748 /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
749 #define SE_DEV_ALIAS_LEN 512
750 unsigned char se_dev_alias
[SE_DEV_ALIAS_LEN
];
751 /* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */
752 #define SE_UDEV_PATH_LEN 512
753 unsigned char se_dev_udev_path
[SE_UDEV_PATH_LEN
];
755 struct se_hba
*se_dev_hba
;
756 struct se_device
*se_dev_ptr
;
757 struct se_dev_attrib se_dev_attrib
;
758 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
759 struct t10_alua t10_alua
;
760 /* T10 Inquiry and VPD WWN Information */
761 struct t10_wwn t10_wwn
;
762 /* T10 SPC-2 + SPC-3 Reservations */
763 struct t10_reservation t10_pr
;
764 spinlock_t se_dev_lock
;
766 struct config_group se_dev_group
;
767 /* For T10 Reservations */
768 struct config_group se_dev_pr_group
;
769 /* For target_core_stat.c groups */
770 struct se_dev_stat_grps dev_stat_grps
;
774 /* RELATIVE TARGET PORT IDENTIFER Counter */
775 u16 dev_rpti_counter
;
776 /* Used for SAM Task Attribute ordering */
777 u32 dev_cur_ordered_id
;
780 /* See transport_device_status_table */
782 /* Physical device queue depth */
784 /* Used for SPC-2 reservations enforce of ISIDs */
785 u64 dev_res_bin_isid
;
786 t10_task_attr_index_t dev_task_attr_type
;
787 /* Pointer to transport specific device structure */
795 spinlock_t stats_lock
;
796 /* Active commands on this virtual SE device */
797 atomic_t simple_cmds
;
798 atomic_t dev_ordered_id
;
799 atomic_t execute_tasks
;
800 atomic_t dev_ordered_sync
;
801 atomic_t dev_qf_count
;
802 struct se_obj dev_obj
;
803 struct se_obj dev_access_obj
;
804 struct se_obj dev_export_obj
;
805 struct se_queue_obj dev_queue_obj
;
806 spinlock_t delayed_cmd_lock
;
807 spinlock_t execute_task_lock
;
808 spinlock_t dev_reservation_lock
;
809 spinlock_t dev_status_lock
;
810 spinlock_t se_port_lock
;
811 spinlock_t se_tmr_lock
;
812 spinlock_t qf_cmd_lock
;
813 /* Used for legacy SPC-2 reservationsa */
814 struct se_node_acl
*dev_reserved_node_acl
;
815 /* Used for ALUA Logical Unit Group membership */
816 struct t10_alua_lu_gp_member
*dev_alua_lu_gp_mem
;
817 /* Used for SPC-3 Persistent Reservations */
818 struct t10_pr_registration
*dev_pr_res_holder
;
819 struct list_head dev_sep_list
;
820 struct list_head dev_tmr_list
;
821 /* Pointer to descriptor for processing thread */
822 struct task_struct
*process_thread
;
823 struct work_struct qf_work_queue
;
824 struct list_head delayed_cmd_list
;
825 struct list_head execute_task_list
;
826 struct list_head state_task_list
;
827 struct list_head qf_cmd_list
;
828 /* Pointer to associated SE HBA */
829 struct se_hba
*se_hba
;
830 struct se_subsystem_dev
*se_sub_dev
;
831 /* Pointer to template of function pointers for transport */
832 struct se_subsystem_api
*transport
;
833 /* Linked list for struct se_hba struct se_device list */
834 struct list_head dev_list
;
840 /* See hba_flags_table */
842 /* Virtual iSCSI devices attached. */
845 /* Pointer to transport specific host structure. */
847 /* Linked list for struct se_device */
848 struct list_head hba_dev_list
;
849 struct list_head hba_node
;
850 spinlock_t device_lock
;
851 struct config_group hba_group
;
852 struct mutex hba_access_mutex
;
853 struct se_subsystem_api
*transport
;
856 struct se_port_stat_grps
{
857 struct config_group stat_group
;
858 struct config_group scsi_port_group
;
859 struct config_group scsi_tgt_port_group
;
860 struct config_group scsi_transport_group
;
864 /* See transport_lun_status_table */
865 enum transport_lun_status_table lun_status
;
869 atomic_t lun_acl_count
;
870 spinlock_t lun_acl_lock
;
871 spinlock_t lun_cmd_lock
;
872 spinlock_t lun_sep_lock
;
873 struct completion lun_shutdown_comp
;
874 struct list_head lun_cmd_list
;
875 struct list_head lun_acl_list
;
876 struct se_device
*lun_se_dev
;
877 struct se_port
*lun_sep
;
878 struct config_group lun_group
;
879 struct se_port_stat_grps port_stat_grps
;
882 struct scsi_port_stats
{
889 /* RELATIVE TARGET PORT IDENTIFER */
891 int sep_tg_pt_secondary_stat
;
892 int sep_tg_pt_secondary_write_md
;
894 struct scsi_port_stats sep_stats
;
895 /* Used for ALUA Target Port Groups membership */
896 atomic_t sep_tg_pt_secondary_offline
;
897 /* Used for PR ALL_TG_PT=1 */
898 atomic_t sep_tg_pt_ref_cnt
;
899 spinlock_t sep_alua_lock
;
900 struct mutex sep_tg_pt_md_mutex
;
901 struct t10_alua_tg_pt_gp_member
*sep_alua_tg_pt_gp_mem
;
902 struct se_lun
*sep_lun
;
903 struct se_portal_group
*sep_tpg
;
904 struct list_head sep_alua_list
;
905 struct list_head sep_list
;
909 struct se_portal_group
*tpg_np_parent
;
910 struct config_group tpg_np_group
;
913 struct se_portal_group
{
914 /* Type of target portal group, see transport_tpg_type_table */
915 enum transport_tpg_type_table se_tpg_type
;
916 /* Number of ACLed Initiator Nodes for this TPG */
918 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
919 atomic_t tpg_pr_ref_count
;
920 /* Spinlock for adding/removing ACLed Nodes */
921 spinlock_t acl_node_lock
;
922 /* Spinlock for adding/removing sessions */
923 spinlock_t session_lock
;
924 spinlock_t tpg_lun_lock
;
925 /* Pointer to $FABRIC_MOD portal group */
926 void *se_tpg_fabric_ptr
;
927 struct list_head se_tpg_node
;
928 /* linked list for initiator ACL list */
929 struct list_head acl_node_list
;
930 struct se_lun
*tpg_lun_list
;
931 struct se_lun tpg_virt_lun0
;
932 /* List of TCM sessions associated wth this TPG */
933 struct list_head tpg_sess_list
;
934 /* Pointer to $FABRIC_MOD dependent code */
935 struct target_core_fabric_ops
*se_tpg_tfo
;
936 struct se_wwn
*se_tpg_wwn
;
937 struct config_group tpg_group
;
938 struct config_group
*tpg_default_groups
[6];
939 struct config_group tpg_lun_group
;
940 struct config_group tpg_np_group
;
941 struct config_group tpg_acl_group
;
942 struct config_group tpg_attrib_group
;
943 struct config_group tpg_param_group
;
947 struct target_fabric_configfs
*wwn_tf
;
948 struct config_group wwn_group
;
949 struct config_group
*wwn_default_groups
[2];
950 struct config_group fabric_stat_group
;
953 #endif /* TARGET_CORE_BASE_H */