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-rc2-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 254
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 */
65 /* struct se_dev_attrib sanity values */
66 /* Default max_unmap_lba_count */
67 #define DA_MAX_UNMAP_LBA_COUNT 0
68 /* Default max_unmap_block_desc_count */
69 #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
70 /* Default unmap_granularity */
71 #define DA_UNMAP_GRANULARITY_DEFAULT 0
72 /* Default unmap_granularity_alignment */
73 #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
74 /* Default max_write_same_len, disabled by default */
75 #define DA_MAX_WRITE_SAME_LEN 0
76 /* Default max transfer length */
77 #define DA_FABRIC_MAX_SECTORS 8192
78 /* Use a model alias based on the configfs backend device name */
79 #define DA_EMULATE_MODEL_ALIAS 0
80 /* Emulation for Direct Page Out */
81 #define DA_EMULATE_DPO 0
82 /* Emulation for Forced Unit Access WRITEs */
83 #define DA_EMULATE_FUA_WRITE 1
84 /* Emulation for Forced Unit Access READs */
85 #define DA_EMULATE_FUA_READ 0
86 /* Emulation for WriteCache and SYNCHRONIZE_CACHE */
87 #define DA_EMULATE_WRITE_CACHE 0
88 /* Emulation for UNIT ATTENTION Interlock Control */
89 #define DA_EMULATE_UA_INTLLCK_CTRL 0
90 /* Emulation for TASK_ABORTED status (TAS) by default */
91 #define DA_EMULATE_TAS 1
92 /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
93 #define DA_EMULATE_TPU 0
95 * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
96 * block/blk-lib.c:blkdev_issue_discard()
98 #define DA_EMULATE_TPWS 0
99 /* No Emulation for PSCSI by default */
100 #define DA_EMULATE_ALUA 0
101 /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
102 #define DA_ENFORCE_PR_ISIDS 1
103 #define DA_STATUS_MAX_SECTORS_MIN 16
104 #define DA_STATUS_MAX_SECTORS_MAX 8192
105 /* By default don't report non-rotating (solid state) medium */
106 #define DA_IS_NONROT 0
107 /* Queue Algorithm Modifier default for restricted reordering in control mode page */
108 #define DA_EMULATE_REST_REORD 0
110 #define SE_INQUIRY_BUF 512
111 #define SE_MODE_PAGE_BUF 512
112 #define SE_SENSE_BUF 96
114 /* struct se_hba->hba_flags */
115 enum hba_flags_table
{
116 HBA_FLAGS_INTERNAL_USE
= 0x01,
117 HBA_FLAGS_PSCSI_MODE
= 0x02,
120 /* struct se_lun->lun_status */
121 enum transport_lun_status_table
{
122 TRANSPORT_LUN_STATUS_FREE
= 0,
123 TRANSPORT_LUN_STATUS_ACTIVE
= 1,
126 /* struct se_portal_group->se_tpg_type */
127 enum transport_tpg_type_table
{
128 TRANSPORT_TPG_TYPE_NORMAL
= 0,
129 TRANSPORT_TPG_TYPE_DISCOVERY
= 1,
132 /* Special transport agnostic struct se_cmd->t_states */
133 enum transport_state_table
{
134 TRANSPORT_NO_STATE
= 0,
135 TRANSPORT_NEW_CMD
= 1,
136 TRANSPORT_WRITE_PENDING
= 3,
137 TRANSPORT_PROCESSING
= 5,
138 TRANSPORT_COMPLETE
= 6,
139 TRANSPORT_ISTATE_PROCESSING
= 11,
140 TRANSPORT_COMPLETE_QF_WP
= 18,
141 TRANSPORT_COMPLETE_QF_OK
= 19,
144 /* Used for struct se_cmd->se_cmd_flags */
145 enum se_cmd_flags_table
{
146 SCF_SUPPORTED_SAM_OPCODE
= 0x00000001,
147 SCF_TRANSPORT_TASK_SENSE
= 0x00000002,
148 SCF_EMULATED_TASK_SENSE
= 0x00000004,
149 SCF_SCSI_DATA_CDB
= 0x00000008,
150 SCF_SCSI_TMR_CDB
= 0x00000010,
151 SCF_FUA
= 0x00000080,
152 SCF_SE_LUN_CMD
= 0x00000100,
153 SCF_BIDI
= 0x00000400,
154 SCF_SENT_CHECK_CONDITION
= 0x00000800,
155 SCF_OVERFLOW_BIT
= 0x00001000,
156 SCF_UNDERFLOW_BIT
= 0x00002000,
157 SCF_SENT_DELAYED_TAS
= 0x00004000,
158 SCF_ALUA_NON_OPTIMIZED
= 0x00008000,
159 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC
= 0x00020000,
160 SCF_ACK_KREF
= 0x00040000,
163 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
164 enum transport_lunflags_table
{
165 TRANSPORT_LUNFLAGS_NO_ACCESS
= 0x00,
166 TRANSPORT_LUNFLAGS_INITIATOR_ACCESS
= 0x01,
167 TRANSPORT_LUNFLAGS_READ_ONLY
= 0x02,
168 TRANSPORT_LUNFLAGS_READ_WRITE
= 0x04,
172 * Used by transport_send_check_condition_and_sense()
173 * to signal which ASC/ASCQ sense payload should be built.
175 typedef unsigned __bitwise__ sense_reason_t
;
177 enum tcm_sense_reason_table
{
178 #define R(x) (__force sense_reason_t )(x)
179 TCM_NO_SENSE
= R(0x00),
180 TCM_NON_EXISTENT_LUN
= R(0x01),
181 TCM_UNSUPPORTED_SCSI_OPCODE
= R(0x02),
182 TCM_INCORRECT_AMOUNT_OF_DATA
= R(0x03),
183 TCM_UNEXPECTED_UNSOLICITED_DATA
= R(0x04),
184 TCM_SERVICE_CRC_ERROR
= R(0x05),
185 TCM_SNACK_REJECTED
= R(0x06),
186 TCM_SECTOR_COUNT_TOO_MANY
= R(0x07),
187 TCM_INVALID_CDB_FIELD
= R(0x08),
188 TCM_INVALID_PARAMETER_LIST
= R(0x09),
189 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE
= R(0x0a),
190 TCM_UNKNOWN_MODE_PAGE
= R(0x0b),
191 TCM_WRITE_PROTECTED
= R(0x0c),
192 TCM_CHECK_CONDITION_ABORT_CMD
= R(0x0d),
193 TCM_CHECK_CONDITION_UNIT_ATTENTION
= R(0x0e),
194 TCM_CHECK_CONDITION_NOT_READY
= R(0x0f),
195 TCM_RESERVATION_CONFLICT
= R(0x10),
196 TCM_ADDRESS_OUT_OF_RANGE
= R(0x11),
197 TCM_OUT_OF_RESOURCES
= R(0x12),
198 TCM_PARAMETER_LIST_LENGTH_ERROR
= R(0x13),
202 enum target_sc_flags_table
{
203 TARGET_SCF_BIDI_OP
= 0x01,
204 TARGET_SCF_ACK_KREF
= 0x02,
205 TARGET_SCF_UNKNOWN_SIZE
= 0x04,
208 /* fabric independent task management function values */
209 enum tcm_tmreq_table
{
211 TMR_ABORT_TASK_SET
= 2,
213 TMR_CLEAR_TASK_SET
= 4,
215 TMR_TARGET_WARM_RESET
= 6,
216 TMR_TARGET_COLD_RESET
= 7,
219 /* fabric independent task management response values */
220 enum tcm_tmrsp_table
{
221 TMR_FUNCTION_COMPLETE
= 0,
222 TMR_TASK_DOES_NOT_EXIST
= 1,
223 TMR_LUN_DOES_NOT_EXIST
= 2,
224 TMR_TASK_STILL_ALLEGIANT
= 3,
225 TMR_TASK_FAILOVER_NOT_SUPPORTED
= 4,
226 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED
= 5,
227 TMR_FUNCTION_AUTHORIZATION_FAILED
= 6,
228 TMR_FUNCTION_REJECTED
= 255,
232 * Used for target SCSI statistics
237 SCSI_AUTH_INTR_INDEX
,
244 /* ALUA Target Port Group ID */
245 u16 alua_tg_pt_gps_counter
;
246 u32 alua_tg_pt_gps_count
;
247 spinlock_t tg_pt_gps_lock
;
248 struct se_device
*t10_dev
;
249 /* Used for default ALUA Target Port Group */
250 struct t10_alua_tg_pt_gp
*default_tg_pt_gp
;
251 /* Used for default ALUA Target Port Group ConfigFS group */
252 struct config_group alua_tg_pt_gps_group
;
253 struct list_head tg_pt_gps_list
;
256 struct t10_alua_lu_gp
{
260 atomic_t lu_gp_ref_cnt
;
261 spinlock_t lu_gp_lock
;
262 struct config_group lu_gp_group
;
263 struct list_head lu_gp_node
;
264 struct list_head lu_gp_mem_list
;
267 struct t10_alua_lu_gp_member
{
269 atomic_t lu_gp_mem_ref_cnt
;
270 spinlock_t lu_gp_mem_lock
;
271 struct t10_alua_lu_gp
*lu_gp
;
272 struct se_device
*lu_gp_mem_dev
;
273 struct list_head lu_gp_mem_list
;
276 struct t10_alua_tg_pt_gp
{
278 int tg_pt_gp_valid_id
;
279 int tg_pt_gp_alua_access_status
;
280 int tg_pt_gp_alua_access_type
;
281 int tg_pt_gp_nonop_delay_msecs
;
282 int tg_pt_gp_trans_delay_msecs
;
283 int tg_pt_gp_implict_trans_secs
;
285 int tg_pt_gp_write_metadata
;
286 /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
287 #define ALUA_MD_BUF_LEN 1024
288 u32 tg_pt_gp_md_buf_len
;
289 u32 tg_pt_gp_members
;
290 atomic_t tg_pt_gp_alua_access_state
;
291 atomic_t tg_pt_gp_ref_cnt
;
292 spinlock_t tg_pt_gp_lock
;
293 struct mutex tg_pt_gp_md_mutex
;
294 struct se_device
*tg_pt_gp_dev
;
295 struct config_group tg_pt_gp_group
;
296 struct list_head tg_pt_gp_list
;
297 struct list_head tg_pt_gp_mem_list
;
300 struct t10_alua_tg_pt_gp_member
{
302 atomic_t tg_pt_gp_mem_ref_cnt
;
303 spinlock_t tg_pt_gp_mem_lock
;
304 struct t10_alua_tg_pt_gp
*tg_pt_gp
;
305 struct se_port
*tg_pt
;
306 struct list_head tg_pt_gp_mem_list
;
310 unsigned char device_identifier
[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN
];
311 int protocol_identifier_set
;
312 u32 protocol_identifier
;
313 u32 device_identifier_code_set
;
315 u32 device_identifier_type
;
316 struct list_head vpd_list
;
323 char unit_serial
[INQUIRY_VPD_SERIAL_LEN
];
324 spinlock_t t10_vpd_lock
;
325 struct se_device
*t10_dev
;
326 struct config_group t10_wwn_group
;
327 struct list_head t10_vpd_list
;
330 struct t10_pr_registration
{
331 /* Used for fabrics that contain WWN+ISID */
332 #define PR_REG_ISID_LEN 16
333 /* PR_REG_ISID_LEN + ',i,0x' */
334 #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
335 char pr_reg_isid
[PR_REG_ISID_LEN
];
336 /* Used during APTPL metadata reading */
337 #define PR_APTPL_MAX_IPORT_LEN 256
338 unsigned char pr_iport
[PR_APTPL_MAX_IPORT_LEN
];
339 /* Used during APTPL metadata reading */
340 #define PR_APTPL_MAX_TPORT_LEN 256
341 unsigned char pr_tport
[PR_APTPL_MAX_TPORT_LEN
];
342 /* For writing out live meta data */
343 unsigned char *pr_aptpl_buf
;
346 /* Reservation effects all target ports */
347 int pr_reg_all_tg_pt
;
348 /* Activate Persistence across Target Power Loss */
353 /* Used for fabric initiator WWPNs using a ISID */
354 bool isid_present_at_reg
;
355 u32 pr_res_mapped_lun
;
356 u32 pr_aptpl_target_lun
;
357 u32 pr_res_generation
;
360 atomic_t pr_res_holders
;
361 struct se_node_acl
*pr_reg_nacl
;
362 struct se_dev_entry
*pr_reg_deve
;
363 struct se_lun
*pr_reg_tg_pt_lun
;
364 struct list_head pr_reg_list
;
365 struct list_head pr_reg_abort_list
;
366 struct list_head pr_reg_aptpl_list
;
367 struct list_head pr_reg_atp_list
;
368 struct list_head pr_reg_atp_mem_list
;
371 struct t10_reservation
{
372 /* Reservation effects all target ports */
374 /* Activate Persistence across Target Power Loss enabled
377 /* Used by struct t10_reservation->pr_aptpl_buf_len */
378 #define PR_APTPL_BUF_LEN 8192
379 u32 pr_aptpl_buf_len
;
381 spinlock_t registration_lock
;
382 spinlock_t aptpl_reg_lock
;
384 * This will always be set by one individual I_T Nexus.
385 * However with all_tg_pt=1, other I_T Nexus from the
386 * same initiator can access PR reg/res info on a different
389 * There is also the 'All Registrants' case, where there is
390 * a single *pr_res_holder of the reservation, but all
391 * registrations are considered reservation holders.
393 struct se_node_acl
*pr_res_holder
;
394 struct list_head registration_list
;
395 struct list_head aptpl_reg_list
;
399 /* Task Management function to be performed */
401 /* Task Management response to send */
404 /* Reference to ITT that Task Mgmt should be performed */
406 void *fabric_tmr_ptr
;
407 struct se_cmd
*task_cmd
;
408 struct se_device
*tmr_dev
;
409 struct se_lun
*tmr_lun
;
410 struct list_head tmr_list
;
414 /* SAM response code being sent to initiator */
418 u16 scsi_sense_length
;
419 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
420 int alua_nonop_delay
;
421 /* See include/linux/dma-mapping.h */
422 enum dma_data_direction data_direction
;
423 /* For SAM Task Attribute */
425 /* Transport protocol dependent state, see transport_state_table */
426 enum transport_state_table t_state
;
427 /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
428 unsigned check_release
:1;
429 unsigned cmd_wait_set
:1;
430 unsigned unknown_data_length
:1;
431 /* See se_cmd_flags_table */
434 /* Total size in bytes associated with command */
438 /* Persistent Reservation key */
440 /* Used for sense data */
442 struct list_head se_delayed_node
;
443 struct list_head se_lun_node
;
444 struct list_head se_qf_node
;
445 struct se_device
*se_dev
;
446 struct se_dev_entry
*se_deve
;
447 struct se_lun
*se_lun
;
448 /* Only used for internal passthrough and legacy TCM fabric modules */
449 struct se_session
*se_sess
;
450 struct se_tmr_req
*se_tmr_req
;
451 struct list_head se_cmd_list
;
452 struct completion cmd_wait_comp
;
453 struct kref cmd_kref
;
454 struct target_core_fabric_ops
*se_tfo
;
455 sense_reason_t (*execute_cmd
)(struct se_cmd
*);
456 void (*transport_complete_callback
)(struct se_cmd
*);
458 unsigned char *t_task_cdb
;
459 unsigned char __t_task_cdb
[TCM_MAX_COMMAND_SIZE
];
460 unsigned long long t_task_lba
;
462 unsigned int transport_state
;
463 #define CMD_T_ABORTED (1 << 0)
464 #define CMD_T_ACTIVE (1 << 1)
465 #define CMD_T_COMPLETE (1 << 2)
466 #define CMD_T_SENT (1 << 4)
467 #define CMD_T_STOP (1 << 5)
468 #define CMD_T_FAILED (1 << 6)
469 #define CMD_T_LUN_STOP (1 << 7)
470 #define CMD_T_LUN_FE_STOP (1 << 8)
471 #define CMD_T_DEV_ACTIVE (1 << 9)
472 #define CMD_T_REQUEST_STOP (1 << 10)
473 #define CMD_T_BUSY (1 << 11)
474 spinlock_t t_state_lock
;
475 struct completion t_transport_stop_comp
;
476 struct completion transport_lun_fe_stop_comp
;
477 struct completion transport_lun_stop_comp
;
479 struct work_struct work
;
481 struct scatterlist
*t_data_sg
;
482 unsigned int t_data_nents
;
484 struct scatterlist
*t_bidi_data_sg
;
485 unsigned int t_bidi_data_nents
;
487 struct list_head state_list
;
490 /* old task stop completion, consider merging with some of the above */
491 struct completion task_stop_comp
;
493 /* backend private data */
500 struct se_node_acl
*ua_nacl
;
501 struct list_head ua_dev_list
;
502 struct list_head ua_nacl_list
;
506 char initiatorname
[TRANSPORT_IQN_LEN
];
507 /* Used to signal demo mode created ACL, disabled by default */
508 bool dynamic_node_acl
;
512 #define MAX_ACL_TAG_SIZE 64
513 char acl_tag
[MAX_ACL_TAG_SIZE
];
517 spinlock_t stats_lock
;
518 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
519 atomic_t acl_pr_ref_count
;
520 struct se_dev_entry
**device_list
;
521 struct se_session
*nacl_sess
;
522 struct se_portal_group
*se_tpg
;
523 spinlock_t device_list_lock
;
524 spinlock_t nacl_sess_lock
;
525 struct config_group acl_group
;
526 struct config_group acl_attrib_group
;
527 struct config_group acl_auth_group
;
528 struct config_group acl_param_group
;
529 struct config_group acl_fabric_stat_group
;
530 struct config_group
*acl_default_groups
[5];
531 struct list_head acl_list
;
532 struct list_head acl_sess_list
;
533 struct completion acl_free_comp
;
534 struct kref acl_kref
;
538 unsigned sess_tearing_down
:1;
540 struct se_node_acl
*se_node_acl
;
541 struct se_portal_group
*se_tpg
;
542 void *fabric_sess_ptr
;
543 struct list_head sess_list
;
544 struct list_head sess_acl_list
;
545 struct list_head sess_cmd_list
;
546 struct list_head sess_wait_list
;
547 spinlock_t sess_cmd_lock
;
548 struct kref sess_kref
;
552 struct se_transform_info
;
555 struct se_ml_stat_grps
{
556 struct config_group stat_group
;
557 struct config_group scsi_auth_intr_group
;
558 struct config_group scsi_att_intr_port_group
;
562 char initiatorname
[TRANSPORT_IQN_LEN
];
564 struct se_node_acl
*se_lun_nacl
;
565 struct se_lun
*se_lun
;
566 struct list_head lacl_list
;
567 struct config_group se_lun_group
;
568 struct se_ml_stat_grps ml_stat_grps
;
571 struct se_dev_entry
{
572 bool def_pr_registered
;
573 /* See transport_lunflags_table */
583 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
584 atomic_t pr_ref_count
;
585 struct se_lun_acl
*se_lun_acl
;
587 struct se_lun
*se_lun
;
588 struct list_head alua_port_list
;
589 struct list_head ua_list
;
592 struct se_dev_attrib
{
593 int emulate_model_alias
;
595 int emulate_fua_write
;
596 int emulate_fua_read
;
597 int emulate_write_cache
;
598 int emulate_ua_intlck_ctrl
;
602 int enforce_pr_isids
;
604 int emulate_rest_reord
;
608 u32 fabric_max_sectors
;
612 u32 max_unmap_lba_count
;
613 u32 max_unmap_block_desc_count
;
614 u32 unmap_granularity
;
615 u32 unmap_granularity_alignment
;
616 u32 max_write_same_len
;
617 struct se_device
*da_dev
;
618 struct config_group da_group
;
621 struct se_dev_stat_grps
{
622 struct config_group stat_group
;
623 struct config_group scsi_dev_group
;
624 struct config_group scsi_tgt_dev_group
;
625 struct config_group scsi_lu_group
;
629 #define SE_DEV_LINK_MAGIC 0xfeeddeef
631 /* RELATIVE TARGET PORT IDENTIFER Counter */
632 u16 dev_rpti_counter
;
633 /* Used for SAM Task Attribute ordering */
634 u32 dev_cur_ordered_id
;
636 #define DF_CONFIGURED 0x00000001
637 #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002
638 #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
639 #define DF_USING_UDEV_PATH 0x00000008
640 #define DF_USING_ALIAS 0x00000010
642 /* Physical device queue depth */
644 /* Used for SPC-2 reservations enforce of ISIDs */
645 u64 dev_res_bin_isid
;
646 /* Pointer to transport specific device structure */
653 spinlock_t stats_lock
;
654 /* Active commands on this virtual SE device */
655 atomic_t simple_cmds
;
656 atomic_t dev_ordered_id
;
657 atomic_t dev_ordered_sync
;
658 atomic_t dev_qf_count
;
660 spinlock_t delayed_cmd_lock
;
661 spinlock_t execute_task_lock
;
662 spinlock_t dev_reservation_lock
;
663 unsigned int dev_reservation_flags
;
664 #define DRF_SPC2_RESERVATIONS 0x00000001
665 #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
666 spinlock_t se_port_lock
;
667 spinlock_t se_tmr_lock
;
668 spinlock_t qf_cmd_lock
;
669 /* Used for legacy SPC-2 reservationsa */
670 struct se_node_acl
*dev_reserved_node_acl
;
671 /* Used for ALUA Logical Unit Group membership */
672 struct t10_alua_lu_gp_member
*dev_alua_lu_gp_mem
;
673 /* Used for SPC-3 Persistent Reservations */
674 struct t10_pr_registration
*dev_pr_res_holder
;
675 struct list_head dev_sep_list
;
676 struct list_head dev_tmr_list
;
677 struct workqueue_struct
*tmr_wq
;
678 struct work_struct qf_work_queue
;
679 struct list_head delayed_cmd_list
;
680 struct list_head state_list
;
681 struct list_head qf_cmd_list
;
682 /* Pointer to associated SE HBA */
683 struct se_hba
*se_hba
;
684 /* T10 Inquiry and VPD WWN Information */
685 struct t10_wwn t10_wwn
;
686 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
687 struct t10_alua t10_alua
;
688 /* T10 SPC-2 + SPC-3 Reservations */
689 struct t10_reservation t10_pr
;
690 struct se_dev_attrib dev_attrib
;
691 struct config_group dev_group
;
692 struct config_group dev_pr_group
;
693 struct se_dev_stat_grps dev_stat_grps
;
694 #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */
695 unsigned char dev_alias
[SE_DEV_ALIAS_LEN
];
696 #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
697 unsigned char udev_path
[SE_UDEV_PATH_LEN
];
698 /* Pointer to template of function pointers for transport */
699 struct se_subsystem_api
*transport
;
700 /* Linked list for struct se_hba struct se_device list */
701 struct list_head dev_list
;
707 /* See hba_flags_table */
709 /* Virtual iSCSI devices attached. */
712 /* Pointer to transport specific host structure. */
714 struct list_head hba_node
;
715 spinlock_t device_lock
;
716 struct config_group hba_group
;
717 struct mutex hba_access_mutex
;
718 struct se_subsystem_api
*transport
;
721 struct se_port_stat_grps
{
722 struct config_group stat_group
;
723 struct config_group scsi_port_group
;
724 struct config_group scsi_tgt_port_group
;
725 struct config_group scsi_transport_group
;
729 #define SE_LUN_LINK_MAGIC 0xffff7771
731 /* See transport_lun_status_table */
732 enum transport_lun_status_table lun_status
;
736 atomic_t lun_acl_count
;
737 spinlock_t lun_acl_lock
;
738 spinlock_t lun_cmd_lock
;
739 spinlock_t lun_sep_lock
;
740 struct completion lun_shutdown_comp
;
741 struct list_head lun_cmd_list
;
742 struct list_head lun_acl_list
;
743 struct se_device
*lun_se_dev
;
744 struct se_port
*lun_sep
;
745 struct config_group lun_group
;
746 struct se_port_stat_grps port_stat_grps
;
749 struct scsi_port_stats
{
756 /* RELATIVE TARGET PORT IDENTIFER */
758 int sep_tg_pt_secondary_stat
;
759 int sep_tg_pt_secondary_write_md
;
761 struct scsi_port_stats sep_stats
;
762 /* Used for ALUA Target Port Groups membership */
763 atomic_t sep_tg_pt_secondary_offline
;
764 /* Used for PR ALL_TG_PT=1 */
765 atomic_t sep_tg_pt_ref_cnt
;
766 spinlock_t sep_alua_lock
;
767 struct mutex sep_tg_pt_md_mutex
;
768 struct t10_alua_tg_pt_gp_member
*sep_alua_tg_pt_gp_mem
;
769 struct se_lun
*sep_lun
;
770 struct se_portal_group
*sep_tpg
;
771 struct list_head sep_alua_list
;
772 struct list_head sep_list
;
776 struct se_portal_group
*tpg_np_parent
;
777 struct config_group tpg_np_group
;
780 struct se_portal_group
{
781 /* Type of target portal group, see transport_tpg_type_table */
782 enum transport_tpg_type_table se_tpg_type
;
783 /* Number of ACLed Initiator Nodes for this TPG */
785 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
786 atomic_t tpg_pr_ref_count
;
787 /* Spinlock for adding/removing ACLed Nodes */
788 spinlock_t acl_node_lock
;
789 /* Spinlock for adding/removing sessions */
790 spinlock_t session_lock
;
791 spinlock_t tpg_lun_lock
;
792 /* Pointer to $FABRIC_MOD portal group */
793 void *se_tpg_fabric_ptr
;
794 struct list_head se_tpg_node
;
795 /* linked list for initiator ACL list */
796 struct list_head acl_node_list
;
797 struct se_lun
**tpg_lun_list
;
798 struct se_lun tpg_virt_lun0
;
799 /* List of TCM sessions associated wth this TPG */
800 struct list_head tpg_sess_list
;
801 /* Pointer to $FABRIC_MOD dependent code */
802 struct target_core_fabric_ops
*se_tpg_tfo
;
803 struct se_wwn
*se_tpg_wwn
;
804 struct config_group tpg_group
;
805 struct config_group
*tpg_default_groups
[6];
806 struct config_group tpg_lun_group
;
807 struct config_group tpg_np_group
;
808 struct config_group tpg_acl_group
;
809 struct config_group tpg_attrib_group
;
810 struct config_group tpg_param_group
;
814 struct target_fabric_configfs
*wwn_tf
;
815 struct config_group wwn_group
;
816 struct config_group
*wwn_default_groups
[2];
817 struct config_group fabric_stat_group
;
820 #endif /* TARGET_CORE_BASE_H */