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 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 */
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 transfer length */
75 #define DA_FABRIC_MAX_SECTORS 8192
76 /* Emulation for Direct Page Out */
77 #define DA_EMULATE_DPO 0
78 /* Emulation for Forced Unit Access WRITEs */
79 #define DA_EMULATE_FUA_WRITE 1
80 /* Emulation for Forced Unit Access READs */
81 #define DA_EMULATE_FUA_READ 0
82 /* Emulation for WriteCache and SYNCHRONIZE_CACHE */
83 #define DA_EMULATE_WRITE_CACHE 0
84 /* Emulation for UNIT ATTENTION Interlock Control */
85 #define DA_EMULATE_UA_INTLLCK_CTRL 0
86 /* Emulation for TASK_ABORTED status (TAS) by default */
87 #define DA_EMULATE_TAS 1
88 /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
89 #define DA_EMULATE_TPU 0
91 * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
92 * block/blk-lib.c:blkdev_issue_discard()
94 #define DA_EMULATE_TPWS 0
95 /* No Emulation for PSCSI by default */
96 #define DA_EMULATE_ALUA 0
97 /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
98 #define DA_ENFORCE_PR_ISIDS 1
99 #define DA_STATUS_MAX_SECTORS_MIN 16
100 #define DA_STATUS_MAX_SECTORS_MAX 8192
101 /* By default don't report non-rotating (solid state) medium */
102 #define DA_IS_NONROT 0
103 /* Queue Algorithm Modifier default for restricted reordering in control mode page */
104 #define DA_EMULATE_REST_REORD 0
106 #define SE_INQUIRY_BUF 512
107 #define SE_MODE_PAGE_BUF 512
108 #define SE_SENSE_BUF 96
110 /* struct se_hba->hba_flags */
111 enum hba_flags_table {
112 HBA_FLAGS_INTERNAL_USE = 0x01,
113 HBA_FLAGS_PSCSI_MODE = 0x02,
116 /* struct se_lun->lun_status */
117 enum transport_lun_status_table {
118 TRANSPORT_LUN_STATUS_FREE = 0,
119 TRANSPORT_LUN_STATUS_ACTIVE = 1,
122 /* struct se_portal_group->se_tpg_type */
123 enum transport_tpg_type_table {
124 TRANSPORT_TPG_TYPE_NORMAL = 0,
125 TRANSPORT_TPG_TYPE_DISCOVERY = 1,
128 /* Special transport agnostic struct se_cmd->t_states */
129 enum transport_state_table {
130 TRANSPORT_NO_STATE = 0,
131 TRANSPORT_NEW_CMD = 1,
132 TRANSPORT_WRITE_PENDING = 3,
133 TRANSPORT_PROCESSING = 5,
134 TRANSPORT_COMPLETE = 6,
135 TRANSPORT_ISTATE_PROCESSING = 11,
136 TRANSPORT_COMPLETE_QF_WP = 18,
137 TRANSPORT_COMPLETE_QF_OK = 19,
140 /* Used for struct se_cmd->se_cmd_flags */
141 enum se_cmd_flags_table {
142 SCF_SUPPORTED_SAM_OPCODE = 0x00000001,
143 SCF_TRANSPORT_TASK_SENSE = 0x00000002,
144 SCF_EMULATED_TASK_SENSE = 0x00000004,
145 SCF_SCSI_DATA_CDB = 0x00000008,
146 SCF_SCSI_TMR_CDB = 0x00000010,
147 SCF_FUA = 0x00000080,
148 SCF_SE_LUN_CMD = 0x00000100,
149 SCF_BIDI = 0x00000400,
150 SCF_SENT_CHECK_CONDITION = 0x00000800,
151 SCF_OVERFLOW_BIT = 0x00001000,
152 SCF_UNDERFLOW_BIT = 0x00002000,
153 SCF_SENT_DELAYED_TAS = 0x00004000,
154 SCF_ALUA_NON_OPTIMIZED = 0x00008000,
155 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000,
156 SCF_ACK_KREF = 0x00040000,
159 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
160 enum transport_lunflags_table {
161 TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
162 TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
163 TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
164 TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
168 * Used by transport_send_check_condition_and_sense()
169 * to signal which ASC/ASCQ sense payload should be built.
171 typedef unsigned __bitwise__ sense_reason_t;
173 enum tcm_sense_reason_table {
174 #define R(x) (__force sense_reason_t )(x)
175 TCM_NON_EXISTENT_LUN = R(0x01),
176 TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02),
177 TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03),
178 TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04),
179 TCM_SERVICE_CRC_ERROR = R(0x05),
180 TCM_SNACK_REJECTED = R(0x06),
181 TCM_SECTOR_COUNT_TOO_MANY = R(0x07),
182 TCM_INVALID_CDB_FIELD = R(0x08),
183 TCM_INVALID_PARAMETER_LIST = R(0x09),
184 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a),
185 TCM_UNKNOWN_MODE_PAGE = R(0x0b),
186 TCM_WRITE_PROTECTED = R(0x0c),
187 TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d),
188 TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e),
189 TCM_CHECK_CONDITION_NOT_READY = R(0x0f),
190 TCM_RESERVATION_CONFLICT = R(0x10),
191 TCM_ADDRESS_OUT_OF_RANGE = R(0x11),
192 TCM_OUT_OF_RESOURCES = R(0x12),
196 enum target_sc_flags_table {
197 TARGET_SCF_BIDI_OP = 0x01,
198 TARGET_SCF_ACK_KREF = 0x02,
199 TARGET_SCF_UNKNOWN_SIZE = 0x04,
202 /* fabric independent task management function values */
203 enum tcm_tmreq_table {
205 TMR_ABORT_TASK_SET = 2,
207 TMR_CLEAR_TASK_SET = 4,
209 TMR_TARGET_WARM_RESET = 6,
210 TMR_TARGET_COLD_RESET = 7,
211 TMR_FABRIC_TMR = 255,
214 /* fabric independent task management response values */
215 enum tcm_tmrsp_table {
216 TMR_FUNCTION_COMPLETE = 0,
217 TMR_TASK_DOES_NOT_EXIST = 1,
218 TMR_LUN_DOES_NOT_EXIST = 2,
219 TMR_TASK_STILL_ALLEGIANT = 3,
220 TMR_TASK_FAILOVER_NOT_SUPPORTED = 4,
221 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5,
222 TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
223 TMR_FUNCTION_REJECTED = 255,
227 * Used for target SCSI statistics
232 SCSI_AUTH_INTR_INDEX,
239 /* ALUA Target Port Group ID */
240 u16 alua_tg_pt_gps_counter;
241 u32 alua_tg_pt_gps_count;
242 spinlock_t tg_pt_gps_lock;
243 struct se_device *t10_dev;
244 /* Used for default ALUA Target Port Group */
245 struct t10_alua_tg_pt_gp *default_tg_pt_gp;
246 /* Used for default ALUA Target Port Group ConfigFS group */
247 struct config_group alua_tg_pt_gps_group;
248 struct list_head tg_pt_gps_list;
251 struct t10_alua_lu_gp {
255 atomic_t lu_gp_ref_cnt;
256 spinlock_t lu_gp_lock;
257 struct config_group lu_gp_group;
258 struct list_head lu_gp_node;
259 struct list_head lu_gp_mem_list;
262 struct t10_alua_lu_gp_member {
264 atomic_t lu_gp_mem_ref_cnt;
265 spinlock_t lu_gp_mem_lock;
266 struct t10_alua_lu_gp *lu_gp;
267 struct se_device *lu_gp_mem_dev;
268 struct list_head lu_gp_mem_list;
271 struct t10_alua_tg_pt_gp {
273 int tg_pt_gp_valid_id;
274 int tg_pt_gp_alua_access_status;
275 int tg_pt_gp_alua_access_type;
276 int tg_pt_gp_nonop_delay_msecs;
277 int tg_pt_gp_trans_delay_msecs;
278 int tg_pt_gp_implict_trans_secs;
280 int tg_pt_gp_write_metadata;
281 /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
282 #define ALUA_MD_BUF_LEN 1024
283 u32 tg_pt_gp_md_buf_len;
284 u32 tg_pt_gp_members;
285 atomic_t tg_pt_gp_alua_access_state;
286 atomic_t tg_pt_gp_ref_cnt;
287 spinlock_t tg_pt_gp_lock;
288 struct mutex tg_pt_gp_md_mutex;
289 struct se_device *tg_pt_gp_dev;
290 struct config_group tg_pt_gp_group;
291 struct list_head tg_pt_gp_list;
292 struct list_head tg_pt_gp_mem_list;
295 struct t10_alua_tg_pt_gp_member {
297 atomic_t tg_pt_gp_mem_ref_cnt;
298 spinlock_t tg_pt_gp_mem_lock;
299 struct t10_alua_tg_pt_gp *tg_pt_gp;
300 struct se_port *tg_pt;
301 struct list_head tg_pt_gp_mem_list;
305 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
306 int protocol_identifier_set;
307 u32 protocol_identifier;
308 u32 device_identifier_code_set;
310 u32 device_identifier_type;
311 struct list_head vpd_list;
318 char unit_serial[INQUIRY_VPD_SERIAL_LEN];
319 spinlock_t t10_vpd_lock;
320 struct se_device *t10_dev;
321 struct config_group t10_wwn_group;
322 struct list_head t10_vpd_list;
325 struct t10_pr_registration {
326 /* Used for fabrics that contain WWN+ISID */
327 #define PR_REG_ISID_LEN 16
328 /* PR_REG_ISID_LEN + ',i,0x' */
329 #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
330 char pr_reg_isid[PR_REG_ISID_LEN];
331 /* Used during APTPL metadata reading */
332 #define PR_APTPL_MAX_IPORT_LEN 256
333 unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN];
334 /* Used during APTPL metadata reading */
335 #define PR_APTPL_MAX_TPORT_LEN 256
336 unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
337 /* For writing out live meta data */
338 unsigned char *pr_aptpl_buf;
341 /* Reservation effects all target ports */
342 int pr_reg_all_tg_pt;
343 /* Activate Persistence across Target Power Loss */
348 /* Used for fabric initiator WWPNs using a ISID */
349 bool isid_present_at_reg;
350 u32 pr_res_mapped_lun;
351 u32 pr_aptpl_target_lun;
352 u32 pr_res_generation;
355 atomic_t pr_res_holders;
356 struct se_node_acl *pr_reg_nacl;
357 struct se_dev_entry *pr_reg_deve;
358 struct se_lun *pr_reg_tg_pt_lun;
359 struct list_head pr_reg_list;
360 struct list_head pr_reg_abort_list;
361 struct list_head pr_reg_aptpl_list;
362 struct list_head pr_reg_atp_list;
363 struct list_head pr_reg_atp_mem_list;
366 struct t10_reservation {
367 /* Reservation effects all target ports */
369 /* Activate Persistence across Target Power Loss enabled
372 /* Used by struct t10_reservation->pr_aptpl_buf_len */
373 #define PR_APTPL_BUF_LEN 8192
374 u32 pr_aptpl_buf_len;
376 spinlock_t registration_lock;
377 spinlock_t aptpl_reg_lock;
379 * This will always be set by one individual I_T Nexus.
380 * However with all_tg_pt=1, other I_T Nexus from the
381 * same initiator can access PR reg/res info on a different
384 * There is also the 'All Registrants' case, where there is
385 * a single *pr_res_holder of the reservation, but all
386 * registrations are considered reservation holders.
388 struct se_node_acl *pr_res_holder;
389 struct list_head registration_list;
390 struct list_head aptpl_reg_list;
394 /* Task Management function to be performed */
396 /* Task Management response to send */
399 /* Reference to ITT that Task Mgmt should be performed */
401 void *fabric_tmr_ptr;
402 struct se_cmd *task_cmd;
403 struct se_device *tmr_dev;
404 struct se_lun *tmr_lun;
405 struct list_head tmr_list;
409 /* SAM response code being sent to initiator */
413 u16 scsi_sense_length;
414 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
415 int alua_nonop_delay;
416 /* See include/linux/dma-mapping.h */
417 enum dma_data_direction data_direction;
418 /* For SAM Task Attribute */
420 /* Transport protocol dependent state, see transport_state_table */
421 enum transport_state_table t_state;
422 /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
423 unsigned check_release:1;
424 unsigned cmd_wait_set:1;
425 unsigned unknown_data_length:1;
426 /* See se_cmd_flags_table */
429 /* Total size in bytes associated with command */
433 /* Persistent Reservation key */
435 /* Used for sense data */
437 struct list_head se_delayed_node;
438 struct list_head se_lun_node;
439 struct list_head se_qf_node;
440 struct se_device *se_dev;
441 struct se_dev_entry *se_deve;
442 struct se_lun *se_lun;
443 /* Only used for internal passthrough and legacy TCM fabric modules */
444 struct se_session *se_sess;
445 struct se_tmr_req *se_tmr_req;
446 struct list_head se_cmd_list;
447 struct completion cmd_wait_comp;
448 struct kref cmd_kref;
449 struct target_core_fabric_ops *se_tfo;
450 sense_reason_t (*execute_cmd)(struct se_cmd *);
451 void (*transport_complete_callback)(struct se_cmd *);
453 unsigned char *t_task_cdb;
454 unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
455 unsigned long long t_task_lba;
457 unsigned int transport_state;
458 #define CMD_T_ABORTED (1 << 0)
459 #define CMD_T_ACTIVE (1 << 1)
460 #define CMD_T_COMPLETE (1 << 2)
461 #define CMD_T_QUEUED (1 << 3)
462 #define CMD_T_SENT (1 << 4)
463 #define CMD_T_STOP (1 << 5)
464 #define CMD_T_FAILED (1 << 6)
465 #define CMD_T_LUN_STOP (1 << 7)
466 #define CMD_T_LUN_FE_STOP (1 << 8)
467 #define CMD_T_DEV_ACTIVE (1 << 9)
468 #define CMD_T_REQUEST_STOP (1 << 10)
469 #define CMD_T_BUSY (1 << 11)
470 spinlock_t t_state_lock;
471 struct completion t_transport_stop_comp;
472 struct completion transport_lun_fe_stop_comp;
473 struct completion transport_lun_stop_comp;
475 struct work_struct work;
477 struct scatterlist *t_data_sg;
478 unsigned int t_data_nents;
480 struct scatterlist *t_bidi_data_sg;
481 unsigned int t_bidi_data_nents;
483 struct list_head state_list;
486 /* old task stop completion, consider merging with some of the above */
487 struct completion task_stop_comp;
489 /* backend private data */
496 struct se_node_acl *ua_nacl;
497 struct list_head ua_dev_list;
498 struct list_head ua_nacl_list;
502 char initiatorname[TRANSPORT_IQN_LEN];
503 /* Used to signal demo mode created ACL, disabled by default */
504 bool dynamic_node_acl;
511 spinlock_t stats_lock;
512 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
513 atomic_t acl_pr_ref_count;
514 struct se_dev_entry **device_list;
515 struct se_session *nacl_sess;
516 struct se_portal_group *se_tpg;
517 spinlock_t device_list_lock;
518 spinlock_t nacl_sess_lock;
519 struct config_group acl_group;
520 struct config_group acl_attrib_group;
521 struct config_group acl_auth_group;
522 struct config_group acl_param_group;
523 struct config_group acl_fabric_stat_group;
524 struct config_group *acl_default_groups[5];
525 struct list_head acl_list;
526 struct list_head acl_sess_list;
527 struct completion acl_free_comp;
528 struct kref acl_kref;
532 unsigned sess_tearing_down:1;
534 struct se_node_acl *se_node_acl;
535 struct se_portal_group *se_tpg;
536 void *fabric_sess_ptr;
537 struct list_head sess_list;
538 struct list_head sess_acl_list;
539 struct list_head sess_cmd_list;
540 spinlock_t sess_cmd_lock;
541 struct kref sess_kref;
545 struct se_transform_info;
548 struct se_ml_stat_grps {
549 struct config_group stat_group;
550 struct config_group scsi_auth_intr_group;
551 struct config_group scsi_att_intr_port_group;
555 char initiatorname[TRANSPORT_IQN_LEN];
557 struct se_node_acl *se_lun_nacl;
558 struct se_lun *se_lun;
559 struct list_head lacl_list;
560 struct config_group se_lun_group;
561 struct se_ml_stat_grps ml_stat_grps;
564 struct se_dev_entry {
565 bool def_pr_registered;
566 /* See transport_lunflags_table */
580 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
581 atomic_t pr_ref_count;
582 struct se_lun_acl *se_lun_acl;
584 struct se_lun *se_lun;
585 struct list_head alua_port_list;
586 struct list_head ua_list;
589 struct se_dev_attrib {
591 int emulate_fua_write;
592 int emulate_fua_read;
593 int emulate_write_cache;
594 int emulate_ua_intlck_ctrl;
598 int enforce_pr_isids;
600 int emulate_rest_reord;
604 u32 fabric_max_sectors;
608 u32 max_unmap_lba_count;
609 u32 max_unmap_block_desc_count;
610 u32 unmap_granularity;
611 u32 unmap_granularity_alignment;
612 struct se_device *da_dev;
613 struct config_group da_group;
616 struct se_dev_stat_grps {
617 struct config_group stat_group;
618 struct config_group scsi_dev_group;
619 struct config_group scsi_tgt_dev_group;
620 struct config_group scsi_lu_group;
624 /* RELATIVE TARGET PORT IDENTIFER Counter */
625 u16 dev_rpti_counter;
626 /* Used for SAM Task Attribute ordering */
627 u32 dev_cur_ordered_id;
629 #define DF_CONFIGURED 0x00000001
630 #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002
631 #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
632 #define DF_USING_UDEV_PATH 0x00000008
633 #define DF_USING_ALIAS 0x00000010
635 /* Physical device queue depth */
637 /* Used for SPC-2 reservations enforce of ISIDs */
638 u64 dev_res_bin_isid;
639 /* Pointer to transport specific device structure */
646 spinlock_t stats_lock;
647 /* Active commands on this virtual SE device */
648 atomic_t simple_cmds;
649 atomic_t dev_ordered_id;
650 atomic_t dev_ordered_sync;
651 atomic_t dev_qf_count;
653 spinlock_t delayed_cmd_lock;
654 spinlock_t execute_task_lock;
655 spinlock_t dev_reservation_lock;
656 unsigned int dev_reservation_flags;
657 #define DRF_SPC2_RESERVATIONS 0x00000001
658 #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
659 spinlock_t se_port_lock;
660 spinlock_t se_tmr_lock;
661 spinlock_t qf_cmd_lock;
662 /* Used for legacy SPC-2 reservationsa */
663 struct se_node_acl *dev_reserved_node_acl;
664 /* Used for ALUA Logical Unit Group membership */
665 struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
666 /* Used for SPC-3 Persistent Reservations */
667 struct t10_pr_registration *dev_pr_res_holder;
668 struct list_head dev_sep_list;
669 struct list_head dev_tmr_list;
670 struct workqueue_struct *tmr_wq;
671 struct work_struct qf_work_queue;
672 struct list_head delayed_cmd_list;
673 struct list_head state_list;
674 struct list_head qf_cmd_list;
675 /* Pointer to associated SE HBA */
676 struct se_hba *se_hba;
677 /* T10 Inquiry and VPD WWN Information */
678 struct t10_wwn t10_wwn;
679 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
680 struct t10_alua t10_alua;
681 /* T10 SPC-2 + SPC-3 Reservations */
682 struct t10_reservation t10_pr;
683 struct se_dev_attrib dev_attrib;
684 struct config_group dev_group;
685 struct config_group dev_pr_group;
686 struct se_dev_stat_grps dev_stat_grps;
687 #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */
688 unsigned char dev_alias[SE_DEV_ALIAS_LEN];
689 #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
690 unsigned char udev_path[SE_UDEV_PATH_LEN];
691 /* Pointer to template of function pointers for transport */
692 struct se_subsystem_api *transport;
693 /* Linked list for struct se_hba struct se_device list */
694 struct list_head dev_list;
700 /* See hba_flags_table */
702 /* Virtual iSCSI devices attached. */
705 /* Pointer to transport specific host structure. */
707 struct list_head hba_node;
708 spinlock_t device_lock;
709 struct config_group hba_group;
710 struct mutex hba_access_mutex;
711 struct se_subsystem_api *transport;
714 struct se_port_stat_grps {
715 struct config_group stat_group;
716 struct config_group scsi_port_group;
717 struct config_group scsi_tgt_port_group;
718 struct config_group scsi_transport_group;
722 /* See transport_lun_status_table */
723 enum transport_lun_status_table lun_status;
727 atomic_t lun_acl_count;
728 spinlock_t lun_acl_lock;
729 spinlock_t lun_cmd_lock;
730 spinlock_t lun_sep_lock;
731 struct completion lun_shutdown_comp;
732 struct list_head lun_cmd_list;
733 struct list_head lun_acl_list;
734 struct se_device *lun_se_dev;
735 struct se_port *lun_sep;
736 struct config_group lun_group;
737 struct se_port_stat_grps port_stat_grps;
740 struct scsi_port_stats {
747 /* RELATIVE TARGET PORT IDENTIFER */
749 int sep_tg_pt_secondary_stat;
750 int sep_tg_pt_secondary_write_md;
752 struct scsi_port_stats sep_stats;
753 /* Used for ALUA Target Port Groups membership */
754 atomic_t sep_tg_pt_secondary_offline;
755 /* Used for PR ALL_TG_PT=1 */
756 atomic_t sep_tg_pt_ref_cnt;
757 spinlock_t sep_alua_lock;
758 struct mutex sep_tg_pt_md_mutex;
759 struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
760 struct se_lun *sep_lun;
761 struct se_portal_group *sep_tpg;
762 struct list_head sep_alua_list;
763 struct list_head sep_list;
767 struct se_portal_group *tpg_np_parent;
768 struct config_group tpg_np_group;
771 struct se_portal_group {
772 /* Type of target portal group, see transport_tpg_type_table */
773 enum transport_tpg_type_table se_tpg_type;
774 /* Number of ACLed Initiator Nodes for this TPG */
776 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
777 atomic_t tpg_pr_ref_count;
778 /* Spinlock for adding/removing ACLed Nodes */
779 spinlock_t acl_node_lock;
780 /* Spinlock for adding/removing sessions */
781 spinlock_t session_lock;
782 spinlock_t tpg_lun_lock;
783 /* Pointer to $FABRIC_MOD portal group */
784 void *se_tpg_fabric_ptr;
785 struct list_head se_tpg_node;
786 /* linked list for initiator ACL list */
787 struct list_head acl_node_list;
788 struct se_lun **tpg_lun_list;
789 struct se_lun tpg_virt_lun0;
790 /* List of TCM sessions associated wth this TPG */
791 struct list_head tpg_sess_list;
792 /* Pointer to $FABRIC_MOD dependent code */
793 struct target_core_fabric_ops *se_tpg_tfo;
794 struct se_wwn *se_tpg_wwn;
795 struct config_group tpg_group;
796 struct config_group *tpg_default_groups[6];
797 struct config_group tpg_lun_group;
798 struct config_group tpg_np_group;
799 struct config_group tpg_acl_group;
800 struct config_group tpg_attrib_group;
801 struct config_group tpg_param_group;
805 struct target_fabric_configfs *wwn_tf;
806 struct config_group wwn_group;
807 struct config_group *wwn_default_groups[2];
808 struct config_group fabric_stat_group;
811 #endif /* TARGET_CORE_BASE_H */