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),
201 enum target_sc_flags_table {
202 TARGET_SCF_BIDI_OP = 0x01,
203 TARGET_SCF_ACK_KREF = 0x02,
204 TARGET_SCF_UNKNOWN_SIZE = 0x04,
207 /* fabric independent task management function values */
208 enum tcm_tmreq_table {
210 TMR_ABORT_TASK_SET = 2,
212 TMR_CLEAR_TASK_SET = 4,
214 TMR_TARGET_WARM_RESET = 6,
215 TMR_TARGET_COLD_RESET = 7,
218 /* fabric independent task management response values */
219 enum tcm_tmrsp_table {
220 TMR_FUNCTION_COMPLETE = 0,
221 TMR_TASK_DOES_NOT_EXIST = 1,
222 TMR_LUN_DOES_NOT_EXIST = 2,
223 TMR_TASK_STILL_ALLEGIANT = 3,
224 TMR_TASK_FAILOVER_NOT_SUPPORTED = 4,
225 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5,
226 TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
227 TMR_FUNCTION_REJECTED = 255,
231 * Used for target SCSI statistics
236 SCSI_AUTH_INTR_INDEX,
243 /* ALUA Target Port Group ID */
244 u16 alua_tg_pt_gps_counter;
245 u32 alua_tg_pt_gps_count;
246 spinlock_t tg_pt_gps_lock;
247 struct se_device *t10_dev;
248 /* Used for default ALUA Target Port Group */
249 struct t10_alua_tg_pt_gp *default_tg_pt_gp;
250 /* Used for default ALUA Target Port Group ConfigFS group */
251 struct config_group alua_tg_pt_gps_group;
252 struct list_head tg_pt_gps_list;
255 struct t10_alua_lu_gp {
259 atomic_t lu_gp_ref_cnt;
260 spinlock_t lu_gp_lock;
261 struct config_group lu_gp_group;
262 struct list_head lu_gp_node;
263 struct list_head lu_gp_mem_list;
266 struct t10_alua_lu_gp_member {
268 atomic_t lu_gp_mem_ref_cnt;
269 spinlock_t lu_gp_mem_lock;
270 struct t10_alua_lu_gp *lu_gp;
271 struct se_device *lu_gp_mem_dev;
272 struct list_head lu_gp_mem_list;
275 struct t10_alua_tg_pt_gp {
277 int tg_pt_gp_valid_id;
278 int tg_pt_gp_alua_access_status;
279 int tg_pt_gp_alua_access_type;
280 int tg_pt_gp_nonop_delay_msecs;
281 int tg_pt_gp_trans_delay_msecs;
282 int tg_pt_gp_implict_trans_secs;
284 int tg_pt_gp_write_metadata;
285 /* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
286 #define ALUA_MD_BUF_LEN 1024
287 u32 tg_pt_gp_md_buf_len;
288 u32 tg_pt_gp_members;
289 atomic_t tg_pt_gp_alua_access_state;
290 atomic_t tg_pt_gp_ref_cnt;
291 spinlock_t tg_pt_gp_lock;
292 struct mutex tg_pt_gp_md_mutex;
293 struct se_device *tg_pt_gp_dev;
294 struct config_group tg_pt_gp_group;
295 struct list_head tg_pt_gp_list;
296 struct list_head tg_pt_gp_mem_list;
299 struct t10_alua_tg_pt_gp_member {
301 atomic_t tg_pt_gp_mem_ref_cnt;
302 spinlock_t tg_pt_gp_mem_lock;
303 struct t10_alua_tg_pt_gp *tg_pt_gp;
304 struct se_port *tg_pt;
305 struct list_head tg_pt_gp_mem_list;
309 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
310 int protocol_identifier_set;
311 u32 protocol_identifier;
312 u32 device_identifier_code_set;
314 u32 device_identifier_type;
315 struct list_head vpd_list;
322 char unit_serial[INQUIRY_VPD_SERIAL_LEN];
323 spinlock_t t10_vpd_lock;
324 struct se_device *t10_dev;
325 struct config_group t10_wwn_group;
326 struct list_head t10_vpd_list;
329 struct t10_pr_registration {
330 /* Used for fabrics that contain WWN+ISID */
331 #define PR_REG_ISID_LEN 16
332 /* PR_REG_ISID_LEN + ',i,0x' */
333 #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
334 char pr_reg_isid[PR_REG_ISID_LEN];
335 /* Used during APTPL metadata reading */
336 #define PR_APTPL_MAX_IPORT_LEN 256
337 unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN];
338 /* Used during APTPL metadata reading */
339 #define PR_APTPL_MAX_TPORT_LEN 256
340 unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
341 /* For writing out live meta data */
342 unsigned char *pr_aptpl_buf;
345 /* Reservation effects all target ports */
346 int pr_reg_all_tg_pt;
347 /* Activate Persistence across Target Power Loss */
352 /* Used for fabric initiator WWPNs using a ISID */
353 bool isid_present_at_reg;
354 u32 pr_res_mapped_lun;
355 u32 pr_aptpl_target_lun;
356 u32 pr_res_generation;
359 atomic_t pr_res_holders;
360 struct se_node_acl *pr_reg_nacl;
361 struct se_dev_entry *pr_reg_deve;
362 struct se_lun *pr_reg_tg_pt_lun;
363 struct list_head pr_reg_list;
364 struct list_head pr_reg_abort_list;
365 struct list_head pr_reg_aptpl_list;
366 struct list_head pr_reg_atp_list;
367 struct list_head pr_reg_atp_mem_list;
370 struct t10_reservation {
371 /* Reservation effects all target ports */
373 /* Activate Persistence across Target Power Loss enabled
376 /* Used by struct t10_reservation->pr_aptpl_buf_len */
377 #define PR_APTPL_BUF_LEN 8192
378 u32 pr_aptpl_buf_len;
380 spinlock_t registration_lock;
381 spinlock_t aptpl_reg_lock;
383 * This will always be set by one individual I_T Nexus.
384 * However with all_tg_pt=1, other I_T Nexus from the
385 * same initiator can access PR reg/res info on a different
388 * There is also the 'All Registrants' case, where there is
389 * a single *pr_res_holder of the reservation, but all
390 * registrations are considered reservation holders.
392 struct se_node_acl *pr_res_holder;
393 struct list_head registration_list;
394 struct list_head aptpl_reg_list;
398 /* Task Management function to be performed */
400 /* Task Management response to send */
403 /* Reference to ITT that Task Mgmt should be performed */
405 void *fabric_tmr_ptr;
406 struct se_cmd *task_cmd;
407 struct se_device *tmr_dev;
408 struct se_lun *tmr_lun;
409 struct list_head tmr_list;
413 /* SAM response code being sent to initiator */
417 u16 scsi_sense_length;
418 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
419 int alua_nonop_delay;
420 /* See include/linux/dma-mapping.h */
421 enum dma_data_direction data_direction;
422 /* For SAM Task Attribute */
424 /* Transport protocol dependent state, see transport_state_table */
425 enum transport_state_table t_state;
426 /* Used to signal cmd->se_tfo->check_release_cmd() usage per cmd */
427 unsigned check_release:1;
428 unsigned cmd_wait_set:1;
429 unsigned unknown_data_length:1;
430 /* See se_cmd_flags_table */
433 /* Total size in bytes associated with command */
437 /* Persistent Reservation key */
439 /* Used for sense data */
441 struct list_head se_delayed_node;
442 struct list_head se_lun_node;
443 struct list_head se_qf_node;
444 struct se_device *se_dev;
445 struct se_dev_entry *se_deve;
446 struct se_lun *se_lun;
447 /* Only used for internal passthrough and legacy TCM fabric modules */
448 struct se_session *se_sess;
449 struct se_tmr_req *se_tmr_req;
450 struct list_head se_cmd_list;
451 struct completion cmd_wait_comp;
452 struct kref cmd_kref;
453 struct target_core_fabric_ops *se_tfo;
454 sense_reason_t (*execute_cmd)(struct se_cmd *);
455 void (*transport_complete_callback)(struct se_cmd *);
457 unsigned char *t_task_cdb;
458 unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
459 unsigned long long t_task_lba;
461 unsigned int transport_state;
462 #define CMD_T_ABORTED (1 << 0)
463 #define CMD_T_ACTIVE (1 << 1)
464 #define CMD_T_COMPLETE (1 << 2)
465 #define CMD_T_QUEUED (1 << 3)
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 spinlock_t sess_cmd_lock;
547 struct kref sess_kref;
551 struct se_transform_info;
554 struct se_ml_stat_grps {
555 struct config_group stat_group;
556 struct config_group scsi_auth_intr_group;
557 struct config_group scsi_att_intr_port_group;
561 char initiatorname[TRANSPORT_IQN_LEN];
563 struct se_node_acl *se_lun_nacl;
564 struct se_lun *se_lun;
565 struct list_head lacl_list;
566 struct config_group se_lun_group;
567 struct se_ml_stat_grps ml_stat_grps;
570 struct se_dev_entry {
571 bool def_pr_registered;
572 /* See transport_lunflags_table */
586 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
587 atomic_t pr_ref_count;
588 struct se_lun_acl *se_lun_acl;
590 struct se_lun *se_lun;
591 struct list_head alua_port_list;
592 struct list_head ua_list;
595 struct se_dev_attrib {
596 int emulate_model_alias;
598 int emulate_fua_write;
599 int emulate_fua_read;
600 int emulate_write_cache;
601 int emulate_ua_intlck_ctrl;
605 int enforce_pr_isids;
607 int emulate_rest_reord;
611 u32 fabric_max_sectors;
615 u32 max_unmap_lba_count;
616 u32 max_unmap_block_desc_count;
617 u32 unmap_granularity;
618 u32 unmap_granularity_alignment;
619 u32 max_write_same_len;
620 struct se_device *da_dev;
621 struct config_group da_group;
624 struct se_dev_stat_grps {
625 struct config_group stat_group;
626 struct config_group scsi_dev_group;
627 struct config_group scsi_tgt_dev_group;
628 struct config_group scsi_lu_group;
632 #define SE_DEV_LINK_MAGIC 0xfeeddeef
634 /* RELATIVE TARGET PORT IDENTIFER Counter */
635 u16 dev_rpti_counter;
636 /* Used for SAM Task Attribute ordering */
637 u32 dev_cur_ordered_id;
639 #define DF_CONFIGURED 0x00000001
640 #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002
641 #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
642 #define DF_USING_UDEV_PATH 0x00000008
643 #define DF_USING_ALIAS 0x00000010
645 /* Physical device queue depth */
647 /* Used for SPC-2 reservations enforce of ISIDs */
648 u64 dev_res_bin_isid;
649 /* Pointer to transport specific device structure */
656 spinlock_t stats_lock;
657 /* Active commands on this virtual SE device */
658 atomic_t simple_cmds;
659 atomic_t dev_ordered_id;
660 atomic_t dev_ordered_sync;
661 atomic_t dev_qf_count;
663 spinlock_t delayed_cmd_lock;
664 spinlock_t execute_task_lock;
665 spinlock_t dev_reservation_lock;
666 unsigned int dev_reservation_flags;
667 #define DRF_SPC2_RESERVATIONS 0x00000001
668 #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
669 spinlock_t se_port_lock;
670 spinlock_t se_tmr_lock;
671 spinlock_t qf_cmd_lock;
672 /* Used for legacy SPC-2 reservationsa */
673 struct se_node_acl *dev_reserved_node_acl;
674 /* Used for ALUA Logical Unit Group membership */
675 struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
676 /* Used for SPC-3 Persistent Reservations */
677 struct t10_pr_registration *dev_pr_res_holder;
678 struct list_head dev_sep_list;
679 struct list_head dev_tmr_list;
680 struct workqueue_struct *tmr_wq;
681 struct work_struct qf_work_queue;
682 struct list_head delayed_cmd_list;
683 struct list_head state_list;
684 struct list_head qf_cmd_list;
685 /* Pointer to associated SE HBA */
686 struct se_hba *se_hba;
687 /* T10 Inquiry and VPD WWN Information */
688 struct t10_wwn t10_wwn;
689 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
690 struct t10_alua t10_alua;
691 /* T10 SPC-2 + SPC-3 Reservations */
692 struct t10_reservation t10_pr;
693 struct se_dev_attrib dev_attrib;
694 struct config_group dev_group;
695 struct config_group dev_pr_group;
696 struct se_dev_stat_grps dev_stat_grps;
697 #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */
698 unsigned char dev_alias[SE_DEV_ALIAS_LEN];
699 #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */
700 unsigned char udev_path[SE_UDEV_PATH_LEN];
701 /* Pointer to template of function pointers for transport */
702 struct se_subsystem_api *transport;
703 /* Linked list for struct se_hba struct se_device list */
704 struct list_head dev_list;
710 /* See hba_flags_table */
712 /* Virtual iSCSI devices attached. */
715 /* Pointer to transport specific host structure. */
717 struct list_head hba_node;
718 spinlock_t device_lock;
719 struct config_group hba_group;
720 struct mutex hba_access_mutex;
721 struct se_subsystem_api *transport;
724 struct se_port_stat_grps {
725 struct config_group stat_group;
726 struct config_group scsi_port_group;
727 struct config_group scsi_tgt_port_group;
728 struct config_group scsi_transport_group;
732 #define SE_LUN_LINK_MAGIC 0xffff7771
734 /* See transport_lun_status_table */
735 enum transport_lun_status_table lun_status;
739 atomic_t lun_acl_count;
740 spinlock_t lun_acl_lock;
741 spinlock_t lun_cmd_lock;
742 spinlock_t lun_sep_lock;
743 struct completion lun_shutdown_comp;
744 struct list_head lun_cmd_list;
745 struct list_head lun_acl_list;
746 struct se_device *lun_se_dev;
747 struct se_port *lun_sep;
748 struct config_group lun_group;
749 struct se_port_stat_grps port_stat_grps;
752 struct scsi_port_stats {
759 /* RELATIVE TARGET PORT IDENTIFER */
761 int sep_tg_pt_secondary_stat;
762 int sep_tg_pt_secondary_write_md;
764 struct scsi_port_stats sep_stats;
765 /* Used for ALUA Target Port Groups membership */
766 atomic_t sep_tg_pt_secondary_offline;
767 /* Used for PR ALL_TG_PT=1 */
768 atomic_t sep_tg_pt_ref_cnt;
769 spinlock_t sep_alua_lock;
770 struct mutex sep_tg_pt_md_mutex;
771 struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
772 struct se_lun *sep_lun;
773 struct se_portal_group *sep_tpg;
774 struct list_head sep_alua_list;
775 struct list_head sep_list;
779 struct se_portal_group *tpg_np_parent;
780 struct config_group tpg_np_group;
783 struct se_portal_group {
784 /* Type of target portal group, see transport_tpg_type_table */
785 enum transport_tpg_type_table se_tpg_type;
786 /* Number of ACLed Initiator Nodes for this TPG */
788 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
789 atomic_t tpg_pr_ref_count;
790 /* Spinlock for adding/removing ACLed Nodes */
791 spinlock_t acl_node_lock;
792 /* Spinlock for adding/removing sessions */
793 spinlock_t session_lock;
794 spinlock_t tpg_lun_lock;
795 /* Pointer to $FABRIC_MOD portal group */
796 void *se_tpg_fabric_ptr;
797 struct list_head se_tpg_node;
798 /* linked list for initiator ACL list */
799 struct list_head acl_node_list;
800 struct se_lun **tpg_lun_list;
801 struct se_lun tpg_virt_lun0;
802 /* List of TCM sessions associated wth this TPG */
803 struct list_head tpg_sess_list;
804 /* Pointer to $FABRIC_MOD dependent code */
805 struct target_core_fabric_ops *se_tpg_tfo;
806 struct se_wwn *se_tpg_wwn;
807 struct config_group tpg_group;
808 struct config_group *tpg_default_groups[6];
809 struct config_group tpg_lun_group;
810 struct config_group tpg_np_group;
811 struct config_group tpg_acl_group;
812 struct config_group tpg_attrib_group;
813 struct config_group tpg_param_group;
817 struct target_fabric_configfs *wwn_tf;
818 struct config_group wwn_group;
819 struct config_group *wwn_default_groups[2];
820 struct config_group fabric_stat_group;
823 #endif /* TARGET_CORE_BASE_H */