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"
14 /* Maximum Number of LUNs per Target Portal Group */
15 /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
16 #define TRANSPORT_MAX_LUNS_PER_TPG 256
18 * By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
20 * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and
21 * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use
22 * 16-byte CDBs by default and require an extra allocation for
23 * 32-byte CDBs to because of legacy issues.
25 * Within TCM Core there are no such legacy limitiations, so we go ahead
26 * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size()
27 * within all TCM Core and subsystem plugin code.
29 #define TCM_MAX_COMMAND_SIZE 32
31 * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently
32 * defined 96, but the real limit is 252 (or 260 including the header)
34 #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE
35 /* Used by transport_send_check_condition_and_sense() */
36 #define SPC_SENSE_KEY_OFFSET 2
37 #define SPC_ADD_SENSE_LEN_OFFSET 7
38 #define SPC_ASC_KEY_OFFSET 12
39 #define SPC_ASCQ_KEY_OFFSET 13
40 #define TRANSPORT_IQN_LEN 224
41 /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */
42 #define LU_GROUP_NAME_BUF 256
43 /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */
44 #define TG_PT_GROUP_NAME_BUF 256
45 /* Used to parse VPD into struct t10_vpd */
46 #define VPD_TMP_BUF_SIZE 128
47 /* Used by transport_generic_cmd_sequencer() */
48 #define READ_BLOCK_LEN 6
49 #define READ_CAP_LEN 8
50 #define READ_POSITION_LEN 20
51 #define INQUIRY_LEN 36
52 /* Used by transport_get_inquiry_vpd_serial() */
53 #define INQUIRY_VPD_SERIAL_LEN 254
54 /* Used by transport_get_inquiry_vpd_device_ident() */
55 #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
57 /* struct se_hba->hba_flags */
58 enum hba_flags_table {
59 HBA_FLAGS_INTERNAL_USE = 0x01,
60 HBA_FLAGS_PSCSI_MODE = 0x02,
63 /* struct se_lun->lun_status */
64 enum transport_lun_status_table {
65 TRANSPORT_LUN_STATUS_FREE = 0,
66 TRANSPORT_LUN_STATUS_ACTIVE = 1,
69 /* struct se_portal_group->se_tpg_type */
70 enum transport_tpg_type_table {
71 TRANSPORT_TPG_TYPE_NORMAL = 0,
72 TRANSPORT_TPG_TYPE_DISCOVERY = 1,
75 /* Used for generate timer flags */
79 TF_REQUEST_STOP = (1 << 2),
82 /* Special transport agnostic struct se_cmd->t_states */
83 enum transport_state_table {
84 TRANSPORT_NO_STATE = 0,
85 TRANSPORT_NEW_CMD = 1,
86 TRANSPORT_WRITE_PENDING = 3,
87 TRANSPORT_PROCESS_WRITE = 4,
88 TRANSPORT_PROCESSING = 5,
89 TRANSPORT_COMPLETE = 6,
90 TRANSPORT_PROCESS_TMR = 9,
91 TRANSPORT_ISTATE_PROCESSING = 11,
92 TRANSPORT_NEW_CMD_MAP = 16,
93 TRANSPORT_COMPLETE_QF_WP = 18,
94 TRANSPORT_COMPLETE_QF_OK = 19,
97 /* Used for struct se_cmd->se_cmd_flags */
98 enum se_cmd_flags_table {
99 SCF_SUPPORTED_SAM_OPCODE = 0x00000001,
100 SCF_TRANSPORT_TASK_SENSE = 0x00000002,
101 SCF_EMULATED_TASK_SENSE = 0x00000004,
102 SCF_SCSI_DATA_SG_IO_CDB = 0x00000008,
103 SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010,
104 SCF_SCSI_NON_DATA_CDB = 0x00000040,
105 SCF_SCSI_CDB_EXCEPTION = 0x00000080,
106 SCF_SCSI_RESERVATION_CONFLICT = 0x00000100,
107 SCF_FUA = 0x00000200,
108 SCF_SE_LUN_CMD = 0x00000800,
109 SCF_SE_ALLOW_EOO = 0x00001000,
110 SCF_BIDI = 0x00002000,
111 SCF_SENT_CHECK_CONDITION = 0x00004000,
112 SCF_OVERFLOW_BIT = 0x00008000,
113 SCF_UNDERFLOW_BIT = 0x00010000,
114 SCF_SENT_DELAYED_TAS = 0x00020000,
115 SCF_ALUA_NON_OPTIMIZED = 0x00040000,
116 SCF_DELAYED_CMD_FROM_SAM_ATTR = 0x00080000,
117 SCF_UNUSED = 0x00100000,
118 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
121 /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
122 enum transport_lunflags_table {
123 TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
124 TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
125 TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
126 TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
129 /* struct se_device->dev_status */
130 enum transport_device_status_table {
131 TRANSPORT_DEVICE_ACTIVATED = 0x01,
132 TRANSPORT_DEVICE_DEACTIVATED = 0x02,
133 TRANSPORT_DEVICE_QUEUE_FULL = 0x04,
134 TRANSPORT_DEVICE_SHUTDOWN = 0x08,
135 TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10,
136 TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20,
140 * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason
141 * to signal which ASC/ASCQ sense payload should be built.
143 enum tcm_sense_reason_table {
144 TCM_NON_EXISTENT_LUN = 0x01,
145 TCM_UNSUPPORTED_SCSI_OPCODE = 0x02,
146 TCM_INCORRECT_AMOUNT_OF_DATA = 0x03,
147 TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04,
148 TCM_SERVICE_CRC_ERROR = 0x05,
149 TCM_SNACK_REJECTED = 0x06,
150 TCM_SECTOR_COUNT_TOO_MANY = 0x07,
151 TCM_INVALID_CDB_FIELD = 0x08,
152 TCM_INVALID_PARAMETER_LIST = 0x09,
153 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a,
154 TCM_UNKNOWN_MODE_PAGE = 0x0b,
155 TCM_WRITE_PROTECTED = 0x0c,
156 TCM_CHECK_CONDITION_ABORT_CMD = 0x0d,
157 TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e,
158 TCM_CHECK_CONDITION_NOT_READY = 0x0f,
159 TCM_RESERVATION_CONFLICT = 0x10,
160 TCM_ADDRESS_OUT_OF_RANGE = 0x11,
164 atomic_t obj_access_count;
165 } ____cacheline_aligned;
168 * Used by TCM Core internally to signal if ALUA emulation is enabled or
169 * disabled, or running in with TCM/pSCSI passthrough mode
172 SPC_ALUA_PASSTHROUGH,
178 * Used by TCM Core internally to signal if SAM Task Attribute emulation
179 * is enabled or disabled, or running in with TCM/pSCSI passthrough mode
182 SAM_TASK_ATTR_PASSTHROUGH,
183 SAM_TASK_ATTR_UNTAGGED,
184 SAM_TASK_ATTR_EMULATED
185 } t10_task_attr_index_t;
188 * Used for target SCSI statistics
193 SCSI_AUTH_INTR_INDEX,
200 t10_alua_index_t alua_type;
201 /* ALUA Target Port Group ID */
202 u16 alua_tg_pt_gps_counter;
203 u32 alua_tg_pt_gps_count;
204 spinlock_t tg_pt_gps_lock;
205 struct se_subsystem_dev *t10_sub_dev;
206 /* Used for default ALUA Target Port Group */
207 struct t10_alua_tg_pt_gp *default_tg_pt_gp;
208 /* Used for default ALUA Target Port Group ConfigFS group */
209 struct config_group alua_tg_pt_gps_group;
210 int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
211 struct list_head tg_pt_gps_list;
212 } ____cacheline_aligned;
214 struct t10_alua_lu_gp {
218 atomic_t lu_gp_ref_cnt;
219 spinlock_t lu_gp_lock;
220 struct config_group lu_gp_group;
221 struct list_head lu_gp_node;
222 struct list_head lu_gp_mem_list;
223 } ____cacheline_aligned;
225 struct t10_alua_lu_gp_member {
227 atomic_t lu_gp_mem_ref_cnt;
228 spinlock_t lu_gp_mem_lock;
229 struct t10_alua_lu_gp *lu_gp;
230 struct se_device *lu_gp_mem_dev;
231 struct list_head lu_gp_mem_list;
232 } ____cacheline_aligned;
234 struct t10_alua_tg_pt_gp {
236 int tg_pt_gp_valid_id;
237 int tg_pt_gp_alua_access_status;
238 int tg_pt_gp_alua_access_type;
239 int tg_pt_gp_nonop_delay_msecs;
240 int tg_pt_gp_trans_delay_msecs;
242 int tg_pt_gp_write_metadata;
243 /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
244 #define ALUA_MD_BUF_LEN 1024
245 u32 tg_pt_gp_md_buf_len;
246 u32 tg_pt_gp_members;
247 atomic_t tg_pt_gp_alua_access_state;
248 atomic_t tg_pt_gp_ref_cnt;
249 spinlock_t tg_pt_gp_lock;
250 struct mutex tg_pt_gp_md_mutex;
251 struct se_subsystem_dev *tg_pt_gp_su_dev;
252 struct config_group tg_pt_gp_group;
253 struct list_head tg_pt_gp_list;
254 struct list_head tg_pt_gp_mem_list;
255 } ____cacheline_aligned;
257 struct t10_alua_tg_pt_gp_member {
259 atomic_t tg_pt_gp_mem_ref_cnt;
260 spinlock_t tg_pt_gp_mem_lock;
261 struct t10_alua_tg_pt_gp *tg_pt_gp;
262 struct se_port *tg_pt;
263 struct list_head tg_pt_gp_mem_list;
264 } ____cacheline_aligned;
267 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
268 int protocol_identifier_set;
269 u32 protocol_identifier;
270 u32 device_identifier_code_set;
272 u32 device_identifier_type;
273 struct list_head vpd_list;
274 } ____cacheline_aligned;
280 char unit_serial[INQUIRY_VPD_SERIAL_LEN];
281 spinlock_t t10_vpd_lock;
282 struct se_subsystem_dev *t10_sub_dev;
283 struct config_group t10_wwn_group;
284 struct list_head t10_vpd_list;
285 } ____cacheline_aligned;
289 * Used by TCM Core internally to signal if >= SPC-3 persistent reservations
290 * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
296 SPC3_PERSISTENT_RESERVATIONS
297 } t10_reservations_index_t;
299 struct t10_pr_registration {
300 /* Used for fabrics that contain WWN+ISID */
301 #define PR_REG_ISID_LEN 16
302 /* PR_REG_ISID_LEN + ',i,0x' */
303 #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
304 char pr_reg_isid[PR_REG_ISID_LEN];
305 /* Used during APTPL metadata reading */
306 #define PR_APTPL_MAX_IPORT_LEN 256
307 unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN];
308 /* Used during APTPL metadata reading */
309 #define PR_APTPL_MAX_TPORT_LEN 256
310 unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
311 /* For writing out live meta data */
312 unsigned char *pr_aptpl_buf;
315 /* Reservation effects all target ports */
316 int pr_reg_all_tg_pt;
317 /* Activate Persistence across Target Power Loss */
322 /* Used for fabric initiator WWPNs using a ISID */
323 bool isid_present_at_reg;
324 u32 pr_res_mapped_lun;
325 u32 pr_aptpl_target_lun;
326 u32 pr_res_generation;
329 atomic_t pr_res_holders;
330 struct se_node_acl *pr_reg_nacl;
331 struct se_dev_entry *pr_reg_deve;
332 struct se_lun *pr_reg_tg_pt_lun;
333 struct list_head pr_reg_list;
334 struct list_head pr_reg_abort_list;
335 struct list_head pr_reg_aptpl_list;
336 struct list_head pr_reg_atp_list;
337 struct list_head pr_reg_atp_mem_list;
338 } ____cacheline_aligned;
341 * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS,
342 * SPC2_RESERVATIONS or SPC_PASSTHROUGH in drivers/target/target_core_pr.c:
343 * core_setup_reservations()
345 struct t10_reservation_ops {
346 int (*t10_reservation_check)(struct se_cmd *, u32 *);
347 int (*t10_seq_non_holder)(struct se_cmd *, unsigned char *, u32);
348 int (*t10_pr_register)(struct se_cmd *);
349 int (*t10_pr_clear)(struct se_cmd *);
352 struct t10_reservation {
353 /* Reservation effects all target ports */
355 /* Activate Persistence across Target Power Loss enabled
358 /* Used by struct t10_reservation->pr_aptpl_buf_len */
359 #define PR_APTPL_BUF_LEN 8192
360 u32 pr_aptpl_buf_len;
362 t10_reservations_index_t res_type;
363 spinlock_t registration_lock;
364 spinlock_t aptpl_reg_lock;
366 * This will always be set by one individual I_T Nexus.
367 * However with all_tg_pt=1, other I_T Nexus from the
368 * same initiator can access PR reg/res info on a different
371 * There is also the 'All Registrants' case, where there is
372 * a single *pr_res_holder of the reservation, but all
373 * registrations are considered reservation holders.
375 struct se_node_acl *pr_res_holder;
376 struct list_head registration_list;
377 struct list_head aptpl_reg_list;
378 struct t10_reservation_ops pr_ops;
379 } ____cacheline_aligned;
381 struct se_queue_req {
384 struct list_head qr_list;
385 } ____cacheline_aligned;
387 struct se_queue_obj {
389 spinlock_t cmd_queue_lock;
390 struct list_head qobj_list;
391 wait_queue_head_t thread_wq;
392 } ____cacheline_aligned;
395 unsigned long long task_lba;
398 struct se_cmd *task_se_cmd;
399 struct scatterlist *task_sg;
404 int task_error_status;
405 enum dma_data_direction task_data_direction;
406 atomic_t task_state_active;
407 struct list_head t_list;
408 struct list_head t_execute_list;
409 struct list_head t_state_list;
410 struct completion task_stop_comp;
411 } ____cacheline_aligned;
414 /* SAM response code being sent to initiator */
418 u8 scsi_sense_reason;
419 u16 scsi_sense_length;
420 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
421 int alua_nonop_delay;
422 /* See include/linux/dma-mapping.h */
423 enum dma_data_direction data_direction;
424 /* For SAM Task Attribute */
426 /* Transport protocol dependent state, see transport_state_table */
427 enum transport_state_table t_state;
428 /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
429 unsigned check_release:1;
430 unsigned cmd_wait_set:1;
431 /* See se_cmd_flags_table */
434 /* Total size in bytes associated with command */
436 /* SCSI Presented Data Transfer Length */
440 /* Persistent Reservation key */
442 /* Used for sense data */
444 struct list_head se_delayed_node;
445 struct list_head se_lun_node;
446 struct list_head se_qf_node;
447 struct se_device *se_dev;
448 struct se_dev_entry *se_deve;
449 struct se_lun *se_lun;
450 /* Only used for internal passthrough and legacy TCM fabric modules */
451 struct se_session *se_sess;
452 struct se_tmr_req *se_tmr_req;
453 struct list_head se_queue_node;
454 struct list_head se_cmd_list;
455 struct completion cmd_wait_comp;
456 struct target_core_fabric_ops *se_tfo;
457 int (*execute_task)(struct se_task *);
458 void (*transport_complete_callback)(struct se_cmd *);
460 unsigned char *t_task_cdb;
461 unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
462 unsigned long long t_task_lba;
464 u32 t_tasks_sg_chained_no;
467 atomic_t t_task_cdbs_left;
468 atomic_t t_task_cdbs_ex_left;
469 atomic_t t_task_cdbs_sent;
470 atomic_t t_transport_aborted;
471 atomic_t t_transport_active;
472 atomic_t t_transport_complete;
473 atomic_t t_transport_queue_active;
474 atomic_t t_transport_sent;
475 atomic_t t_transport_stop;
476 atomic_t transport_dev_active;
477 atomic_t transport_lun_active;
478 atomic_t transport_lun_fe_stop;
479 atomic_t transport_lun_stop;
480 spinlock_t t_state_lock;
481 struct completion t_transport_stop_comp;
482 struct completion transport_lun_fe_stop_comp;
483 struct completion transport_lun_stop_comp;
484 struct scatterlist *t_tasks_sg_chained;
486 struct work_struct work;
488 struct scatterlist *t_data_sg;
489 unsigned int t_data_nents;
491 struct scatterlist *t_bidi_data_sg;
492 unsigned int t_bidi_data_nents;
494 /* Used for BIDI READ */
495 struct list_head t_task_list;
498 } ____cacheline_aligned;
501 /* Task Management function to be preformed */
503 /* Task Management response to send */
506 /* Reference to ITT that Task Mgmt should be preformed */
508 /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */
510 void *fabric_tmr_ptr;
511 struct se_cmd *task_cmd;
512 struct se_cmd *ref_cmd;
513 struct se_device *tmr_dev;
514 struct se_lun *tmr_lun;
515 struct list_head tmr_list;
516 } ____cacheline_aligned;
521 struct se_node_acl *ua_nacl;
522 struct list_head ua_dev_list;
523 struct list_head ua_nacl_list;
524 } ____cacheline_aligned;
527 char initiatorname[TRANSPORT_IQN_LEN];
528 /* Used to signal demo mode created ACL, disabled by default */
529 bool dynamic_node_acl;
535 spinlock_t stats_lock;
536 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
537 atomic_t acl_pr_ref_count;
538 struct se_dev_entry *device_list;
539 struct se_session *nacl_sess;
540 struct se_portal_group *se_tpg;
541 spinlock_t device_list_lock;
542 spinlock_t nacl_sess_lock;
543 struct config_group acl_group;
544 struct config_group acl_attrib_group;
545 struct config_group acl_auth_group;
546 struct config_group acl_param_group;
547 struct config_group acl_fabric_stat_group;
548 struct config_group *acl_default_groups[5];
549 struct list_head acl_list;
550 struct list_head acl_sess_list;
551 } ____cacheline_aligned;
554 unsigned sess_tearing_down:1;
556 struct se_node_acl *se_node_acl;
557 struct se_portal_group *se_tpg;
558 void *fabric_sess_ptr;
559 struct list_head sess_list;
560 struct list_head sess_acl_list;
561 struct list_head sess_cmd_list;
562 struct list_head sess_wait_list;
563 spinlock_t sess_cmd_lock;
564 } ____cacheline_aligned;
567 struct se_transform_info;
570 struct se_ml_stat_grps {
571 struct config_group stat_group;
572 struct config_group scsi_auth_intr_group;
573 struct config_group scsi_att_intr_port_group;
577 char initiatorname[TRANSPORT_IQN_LEN];
579 struct se_node_acl *se_lun_nacl;
580 struct se_lun *se_lun;
581 struct list_head lacl_list;
582 struct config_group se_lun_group;
583 struct se_ml_stat_grps ml_stat_grps;
584 } ____cacheline_aligned;
586 struct se_dev_entry {
587 bool def_pr_registered;
588 /* See transport_lunflags_table */
602 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
603 atomic_t pr_ref_count;
604 struct se_lun_acl *se_lun_acl;
606 struct se_lun *se_lun;
607 struct list_head alua_port_list;
608 struct list_head ua_list;
609 } ____cacheline_aligned;
611 struct se_dev_limits {
612 /* Max supported HW queue depth */
614 /* Max supported virtual queue depth */
616 /* From include/linux/blkdev.h for the other HW/SW limits. */
617 struct queue_limits limits;
618 } ____cacheline_aligned;
620 struct se_dev_attrib {
622 int emulate_fua_write;
623 int emulate_fua_read;
624 int emulate_write_cache;
625 int emulate_ua_intlck_ctrl;
629 int emulate_reservations;
631 int enforce_pr_isids;
633 int emulate_rest_reord;
641 u32 max_unmap_lba_count;
642 u32 max_unmap_block_desc_count;
643 u32 unmap_granularity;
644 u32 unmap_granularity_alignment;
645 struct se_subsystem_dev *da_sub_dev;
646 struct config_group da_group;
647 } ____cacheline_aligned;
649 struct se_dev_stat_grps {
650 struct config_group stat_group;
651 struct config_group scsi_dev_group;
652 struct config_group scsi_tgt_dev_group;
653 struct config_group scsi_lu_group;
656 struct se_subsystem_dev {
657 /* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
658 #define SE_DEV_ALIAS_LEN 512
659 unsigned char se_dev_alias[SE_DEV_ALIAS_LEN];
660 /* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */
661 #define SE_UDEV_PATH_LEN 512
662 unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN];
664 struct se_hba *se_dev_hba;
665 struct se_device *se_dev_ptr;
666 struct se_dev_attrib se_dev_attrib;
667 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
668 struct t10_alua t10_alua;
669 /* T10 Inquiry and VPD WWN Information */
670 struct t10_wwn t10_wwn;
671 /* T10 SPC-2 + SPC-3 Reservations */
672 struct t10_reservation t10_pr;
673 spinlock_t se_dev_lock;
675 struct config_group se_dev_group;
676 /* For T10 Reservations */
677 struct config_group se_dev_pr_group;
678 /* For target_core_stat.c groups */
679 struct se_dev_stat_grps dev_stat_grps;
680 } ____cacheline_aligned;
683 /* RELATIVE TARGET PORT IDENTIFER Counter */
684 u16 dev_rpti_counter;
685 /* Used for SAM Task Attribute ordering */
686 u32 dev_cur_ordered_id;
689 /* See transport_device_status_table */
691 u32 dev_tcq_window_closed;
692 /* Physical device queue depth */
694 /* Used for SPC-2 reservations enforce of ISIDs */
695 u64 dev_res_bin_isid;
696 t10_task_attr_index_t dev_task_attr_type;
697 /* Pointer to transport specific device structure */
705 spinlock_t stats_lock;
706 /* Active commands on this virtual SE device */
707 atomic_t simple_cmds;
709 atomic_t dev_ordered_id;
710 atomic_t execute_tasks;
711 atomic_t dev_ordered_sync;
712 atomic_t dev_qf_count;
713 struct se_obj dev_obj;
714 struct se_obj dev_access_obj;
715 struct se_obj dev_export_obj;
716 struct se_queue_obj dev_queue_obj;
717 spinlock_t delayed_cmd_lock;
718 spinlock_t execute_task_lock;
719 spinlock_t dev_reservation_lock;
720 spinlock_t dev_status_lock;
721 spinlock_t se_port_lock;
722 spinlock_t se_tmr_lock;
723 spinlock_t qf_cmd_lock;
724 /* Used for legacy SPC-2 reservationsa */
725 struct se_node_acl *dev_reserved_node_acl;
726 /* Used for ALUA Logical Unit Group membership */
727 struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
728 /* Used for SPC-3 Persistent Reservations */
729 struct t10_pr_registration *dev_pr_res_holder;
730 struct list_head dev_sep_list;
731 struct list_head dev_tmr_list;
732 /* Pointer to descriptor for processing thread */
733 struct task_struct *process_thread;
734 struct work_struct qf_work_queue;
735 struct list_head delayed_cmd_list;
736 struct list_head execute_task_list;
737 struct list_head state_task_list;
738 struct list_head qf_cmd_list;
739 /* Pointer to associated SE HBA */
740 struct se_hba *se_hba;
741 struct se_subsystem_dev *se_sub_dev;
742 /* Pointer to template of function pointers for transport */
743 struct se_subsystem_api *transport;
744 /* Linked list for struct se_hba struct se_device list */
745 struct list_head dev_list;
746 } ____cacheline_aligned;
751 /* See hba_flags_table */
753 /* Virtual iSCSI devices attached. */
756 /* Pointer to transport specific host structure. */
758 /* Linked list for struct se_device */
759 struct list_head hba_dev_list;
760 struct list_head hba_node;
761 spinlock_t device_lock;
762 struct config_group hba_group;
763 struct mutex hba_access_mutex;
764 struct se_subsystem_api *transport;
765 } ____cacheline_aligned;
767 struct se_port_stat_grps {
768 struct config_group stat_group;
769 struct config_group scsi_port_group;
770 struct config_group scsi_tgt_port_group;
771 struct config_group scsi_transport_group;
775 /* See transport_lun_status_table */
776 enum transport_lun_status_table lun_status;
780 atomic_t lun_acl_count;
781 spinlock_t lun_acl_lock;
782 spinlock_t lun_cmd_lock;
783 spinlock_t lun_sep_lock;
784 struct completion lun_shutdown_comp;
785 struct list_head lun_cmd_list;
786 struct list_head lun_acl_list;
787 struct se_device *lun_se_dev;
788 struct se_port *lun_sep;
789 struct config_group lun_group;
790 struct se_port_stat_grps port_stat_grps;
791 } ____cacheline_aligned;
793 struct scsi_port_stats {
797 } ____cacheline_aligned;
800 /* RELATIVE TARGET PORT IDENTIFER */
802 int sep_tg_pt_secondary_stat;
803 int sep_tg_pt_secondary_write_md;
805 struct scsi_port_stats sep_stats;
806 /* Used for ALUA Target Port Groups membership */
807 atomic_t sep_tg_pt_secondary_offline;
808 /* Used for PR ALL_TG_PT=1 */
809 atomic_t sep_tg_pt_ref_cnt;
810 spinlock_t sep_alua_lock;
811 struct mutex sep_tg_pt_md_mutex;
812 struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
813 struct se_lun *sep_lun;
814 struct se_portal_group *sep_tpg;
815 struct list_head sep_alua_list;
816 struct list_head sep_list;
817 } ____cacheline_aligned;
820 struct se_portal_group *tpg_np_parent;
821 struct config_group tpg_np_group;
822 } ____cacheline_aligned;
824 struct se_portal_group {
825 /* Type of target portal group, see transport_tpg_type_table */
826 enum transport_tpg_type_table se_tpg_type;
827 /* Number of ACLed Initiator Nodes for this TPG */
829 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
830 atomic_t tpg_pr_ref_count;
831 /* Spinlock for adding/removing ACLed Nodes */
832 spinlock_t acl_node_lock;
833 /* Spinlock for adding/removing sessions */
834 spinlock_t session_lock;
835 spinlock_t tpg_lun_lock;
836 /* Pointer to $FABRIC_MOD portal group */
837 void *se_tpg_fabric_ptr;
838 struct list_head se_tpg_node;
839 /* linked list for initiator ACL list */
840 struct list_head acl_node_list;
841 struct se_lun *tpg_lun_list;
842 struct se_lun tpg_virt_lun0;
843 /* List of TCM sessions associated wth this TPG */
844 struct list_head tpg_sess_list;
845 /* Pointer to $FABRIC_MOD dependent code */
846 struct target_core_fabric_ops *se_tpg_tfo;
847 struct se_wwn *se_tpg_wwn;
848 struct config_group tpg_group;
849 struct config_group *tpg_default_groups[6];
850 struct config_group tpg_lun_group;
851 struct config_group tpg_np_group;
852 struct config_group tpg_acl_group;
853 struct config_group tpg_attrib_group;
854 struct config_group tpg_param_group;
855 } ____cacheline_aligned;
858 struct target_fabric_configfs *wwn_tf;
859 struct config_group wwn_group;
860 struct config_group *wwn_default_groups[2];
861 struct config_group fabric_stat_group;
862 } ____cacheline_aligned;
864 #endif /* TARGET_CORE_BASE_H */