1#ifndef TARGET_CORE_BASE_H
2#define TARGET_CORE_BASE_H
3
4#include <linux/in.h>
5#include <linux/configfs.h>
6#include <linux/dma-mapping.h>
7#include <linux/blkdev.h>
8#include <linux/percpu_ida.h>
9#include <linux/t10-pi.h>
10#include <net/sock.h>
11#include <net/tcp.h>
12
13#define TARGET_CORE_VERSION "v5.0"
14
15
16
17
18
19#define TCM_MAX_COMMAND_SIZE 32
20
21
22
23
24#define TRANSPORT_SENSE_BUFFER 96
25
26#define SPC_SENSE_KEY_OFFSET 2
27#define SPC_ADD_SENSE_LEN_OFFSET 7
28#define SPC_DESC_TYPE_OFFSET 8
29#define SPC_ADDITIONAL_DESC_LEN_OFFSET 9
30#define SPC_VALIDITY_OFFSET 10
31#define SPC_ASC_KEY_OFFSET 12
32#define SPC_ASCQ_KEY_OFFSET 13
33#define TRANSPORT_IQN_LEN 224
34
35#define LU_GROUP_NAME_BUF 256
36
37#define TG_PT_GROUP_NAME_BUF 256
38
39#define VPD_TMP_BUF_SIZE 254
40
41#define READ_BLOCK_LEN 6
42#define READ_CAP_LEN 8
43#define READ_POSITION_LEN 20
44#define INQUIRY_LEN 36
45
46#define INQUIRY_VPD_SERIAL_LEN 254
47
48#define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
49
50
51#define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3
52#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3
53#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10
54
55#define PYX_TRANSPORT_STATUS_INTERVAL 5
56
57
58
59#define DA_MAX_UNMAP_LBA_COUNT 0
60
61#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
62
63#define DA_UNMAP_GRANULARITY_DEFAULT 0
64
65#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
66
67#define DA_UNMAP_ZEROES_DATA_DEFAULT 0
68
69#define DA_MAX_WRITE_SAME_LEN 0
70
71#define DA_EMULATE_MODEL_ALIAS 0
72
73#define DA_EMULATE_WRITE_CACHE 0
74
75#define DA_EMULATE_UA_INTLLCK_CTRL 0
76
77#define DA_EMULATE_TAS 1
78
79#define DA_EMULATE_TPU 0
80
81
82
83
84#define DA_EMULATE_TPWS 0
85
86#define DA_EMULATE_CAW 1
87
88#define DA_EMULATE_3PC 1
89
90#define DA_EMULATE_ALUA 0
91
92#define DA_ENFORCE_PR_ISIDS 1
93
94#define DA_FORCE_PR_APTPL 0
95#define DA_STATUS_MAX_SECTORS_MIN 16
96#define DA_STATUS_MAX_SECTORS_MAX 8192
97
98#define DA_IS_NONROT 0
99
100#define DA_EMULATE_REST_REORD 0
101
102#define SE_INQUIRY_BUF 1024
103#define SE_MODE_PAGE_BUF 512
104#define SE_SENSE_BUF 96
105
106
107enum hba_flags_table {
108 HBA_FLAGS_INTERNAL_USE = 0x01,
109 HBA_FLAGS_PSCSI_MODE = 0x02,
110};
111
112
113enum transport_state_table {
114 TRANSPORT_NO_STATE = 0,
115 TRANSPORT_NEW_CMD = 1,
116 TRANSPORT_WRITE_PENDING = 3,
117 TRANSPORT_PROCESSING = 5,
118 TRANSPORT_COMPLETE = 6,
119 TRANSPORT_ISTATE_PROCESSING = 11,
120 TRANSPORT_COMPLETE_QF_WP = 18,
121 TRANSPORT_COMPLETE_QF_OK = 19,
122};
123
124
125enum se_cmd_flags_table {
126 SCF_SUPPORTED_SAM_OPCODE = 0x00000001,
127 SCF_TRANSPORT_TASK_SENSE = 0x00000002,
128 SCF_EMULATED_TASK_SENSE = 0x00000004,
129 SCF_SCSI_DATA_CDB = 0x00000008,
130 SCF_SCSI_TMR_CDB = 0x00000010,
131 SCF_FUA = 0x00000080,
132 SCF_SE_LUN_CMD = 0x00000100,
133 SCF_BIDI = 0x00000400,
134 SCF_SENT_CHECK_CONDITION = 0x00000800,
135 SCF_OVERFLOW_BIT = 0x00001000,
136 SCF_UNDERFLOW_BIT = 0x00002000,
137 SCF_SEND_DELAYED_TAS = 0x00004000,
138 SCF_ALUA_NON_OPTIMIZED = 0x00008000,
139 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000,
140 SCF_COMPARE_AND_WRITE = 0x00080000,
141 SCF_COMPARE_AND_WRITE_POST = 0x00100000,
142 SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000,
143 SCF_ACK_KREF = 0x00400000,
144 SCF_USE_CPUID = 0x00800000,
145 SCF_TASK_ATTR_SET = 0x01000000,
146};
147
148
149
150
151
152typedef unsigned __bitwise__ sense_reason_t;
153
154enum tcm_sense_reason_table {
155#define R(x) (__force sense_reason_t )(x)
156 TCM_NO_SENSE = R(0x00),
157 TCM_NON_EXISTENT_LUN = R(0x01),
158 TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02),
159 TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03),
160 TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04),
161 TCM_SERVICE_CRC_ERROR = R(0x05),
162 TCM_SNACK_REJECTED = R(0x06),
163 TCM_SECTOR_COUNT_TOO_MANY = R(0x07),
164 TCM_INVALID_CDB_FIELD = R(0x08),
165 TCM_INVALID_PARAMETER_LIST = R(0x09),
166 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a),
167 TCM_UNKNOWN_MODE_PAGE = R(0x0b),
168 TCM_WRITE_PROTECTED = R(0x0c),
169 TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d),
170 TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e),
171 TCM_CHECK_CONDITION_NOT_READY = R(0x0f),
172 TCM_RESERVATION_CONFLICT = R(0x10),
173 TCM_ADDRESS_OUT_OF_RANGE = R(0x11),
174 TCM_OUT_OF_RESOURCES = R(0x12),
175 TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13),
176 TCM_MISCOMPARE_VERIFY = R(0x14),
177 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15),
178 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16),
179 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17),
180 TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18),
181#undef R
182};
183
184enum target_sc_flags_table {
185 TARGET_SCF_BIDI_OP = 0x01,
186 TARGET_SCF_ACK_KREF = 0x02,
187 TARGET_SCF_UNKNOWN_SIZE = 0x04,
188 TARGET_SCF_USE_CPUID = 0x08,
189};
190
191
192enum tcm_tmreq_table {
193 TMR_ABORT_TASK = 1,
194 TMR_ABORT_TASK_SET = 2,
195 TMR_CLEAR_ACA = 3,
196 TMR_CLEAR_TASK_SET = 4,
197 TMR_LUN_RESET = 5,
198 TMR_TARGET_WARM_RESET = 6,
199 TMR_TARGET_COLD_RESET = 7,
200};
201
202
203enum tcm_tmrsp_table {
204 TMR_FUNCTION_FAILED = 0,
205 TMR_FUNCTION_COMPLETE = 1,
206 TMR_TASK_DOES_NOT_EXIST = 2,
207 TMR_LUN_DOES_NOT_EXIST = 3,
208 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4,
209 TMR_FUNCTION_REJECTED = 5,
210};
211
212
213
214
215typedef enum {
216 SCSI_INST_INDEX,
217 SCSI_DEVICE_INDEX,
218 SCSI_AUTH_INTR_INDEX,
219 SCSI_INDEX_TYPE_MAX
220} scsi_index_t;
221
222struct se_cmd;
223
224struct t10_alua_lba_map_member {
225 struct list_head lba_map_mem_list;
226 int lba_map_mem_alua_state;
227 int lba_map_mem_alua_pg_id;
228};
229
230struct t10_alua_lba_map {
231 u64 lba_map_first_lba;
232 u64 lba_map_last_lba;
233 struct list_head lba_map_list;
234 struct list_head lba_map_mem_list;
235};
236
237struct t10_alua {
238
239 u16 alua_tg_pt_gps_counter;
240 u32 alua_tg_pt_gps_count;
241
242 spinlock_t lba_map_lock;
243 u32 lba_map_segment_size;
244 u32 lba_map_segment_multiplier;
245 struct list_head lba_map_list;
246 spinlock_t tg_pt_gps_lock;
247 struct se_device *t10_dev;
248
249 struct t10_alua_tg_pt_gp *default_tg_pt_gp;
250
251 struct config_group alua_tg_pt_gps_group;
252 struct list_head tg_pt_gps_list;
253};
254
255struct t10_alua_lu_gp {
256 u16 lu_gp_id;
257 int lu_gp_valid_id;
258 u32 lu_gp_members;
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;
264};
265
266struct t10_alua_lu_gp_member {
267 bool lu_gp_assoc;
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;
273};
274
275struct t10_alua_tg_pt_gp {
276 u16 tg_pt_gp_id;
277 int tg_pt_gp_valid_id;
278 int tg_pt_gp_alua_supported_states;
279 int tg_pt_gp_alua_pending_state;
280 int tg_pt_gp_alua_previous_state;
281 int tg_pt_gp_alua_access_status;
282 int tg_pt_gp_alua_access_type;
283 int tg_pt_gp_nonop_delay_msecs;
284 int tg_pt_gp_trans_delay_msecs;
285 int tg_pt_gp_implicit_trans_secs;
286 int tg_pt_gp_pref;
287 int tg_pt_gp_write_metadata;
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_lun_list;
297 struct se_lun *tg_pt_gp_alua_lun;
298 struct se_node_acl *tg_pt_gp_alua_nacl;
299 struct delayed_work tg_pt_gp_transition_work;
300 struct completion *tg_pt_gp_transition_complete;
301};
302
303struct t10_vpd {
304 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
305 int protocol_identifier_set;
306 u32 protocol_identifier;
307 u32 device_identifier_code_set;
308 u32 association;
309 u32 device_identifier_type;
310 struct list_head vpd_list;
311};
312
313struct t10_wwn {
314 char vendor[8];
315 char model[16];
316 char revision[4];
317 char unit_serial[INQUIRY_VPD_SERIAL_LEN];
318 spinlock_t t10_vpd_lock;
319 struct se_device *t10_dev;
320 struct config_group t10_wwn_group;
321 struct list_head t10_vpd_list;
322};
323
324struct t10_pr_registration {
325
326#define PR_REG_ISID_LEN 16
327
328#define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5)
329 char pr_reg_isid[PR_REG_ISID_LEN];
330
331#define PR_APTPL_MAX_IPORT_LEN 256
332 unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN];
333
334#define PR_APTPL_MAX_TPORT_LEN 256
335 unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN];
336 u16 pr_aptpl_rpti;
337 u16 pr_reg_tpgt;
338
339 int pr_reg_all_tg_pt;
340
341 int pr_reg_aptpl;
342 int pr_res_holder;
343 int pr_res_type;
344 int pr_res_scope;
345
346 bool isid_present_at_reg;
347 u64 pr_res_mapped_lun;
348 u64 pr_aptpl_target_lun;
349 u16 tg_pt_sep_rtpi;
350 u32 pr_res_generation;
351 u64 pr_reg_bin_isid;
352 u64 pr_res_key;
353 atomic_t pr_res_holders;
354 struct se_node_acl *pr_reg_nacl;
355
356 struct se_dev_entry *pr_reg_deve;
357 struct list_head pr_reg_list;
358 struct list_head pr_reg_abort_list;
359 struct list_head pr_reg_aptpl_list;
360 struct list_head pr_reg_atp_list;
361 struct list_head pr_reg_atp_mem_list;
362};
363
364struct t10_reservation {
365
366 int pr_all_tg_pt;
367
368
369 int pr_aptpl_active;
370#define PR_APTPL_BUF_LEN 262144
371 u32 pr_generation;
372 spinlock_t registration_lock;
373 spinlock_t aptpl_reg_lock;
374
375
376
377
378
379
380
381
382
383
384 struct se_node_acl *pr_res_holder;
385 struct list_head registration_list;
386 struct list_head aptpl_reg_list;
387};
388
389struct se_tmr_req {
390
391 u8 function;
392
393 u8 response;
394 int call_transport;
395
396 u64 ref_task_tag;
397 void *fabric_tmr_ptr;
398 struct se_cmd *task_cmd;
399 struct se_device *tmr_dev;
400 struct se_lun *tmr_lun;
401 struct list_head tmr_list;
402};
403
404enum target_prot_op {
405 TARGET_PROT_NORMAL = 0,
406 TARGET_PROT_DIN_INSERT = (1 << 0),
407 TARGET_PROT_DOUT_INSERT = (1 << 1),
408 TARGET_PROT_DIN_STRIP = (1 << 2),
409 TARGET_PROT_DOUT_STRIP = (1 << 3),
410 TARGET_PROT_DIN_PASS = (1 << 4),
411 TARGET_PROT_DOUT_PASS = (1 << 5),
412};
413
414#define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \
415 TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \
416 TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS
417
418enum target_prot_type {
419 TARGET_DIF_TYPE0_PROT,
420 TARGET_DIF_TYPE1_PROT,
421 TARGET_DIF_TYPE2_PROT,
422 TARGET_DIF_TYPE3_PROT,
423};
424
425enum target_core_dif_check {
426 TARGET_DIF_CHECK_GUARD = 0x1 << 0,
427 TARGET_DIF_CHECK_APPTAG = 0x1 << 1,
428 TARGET_DIF_CHECK_REFTAG = 0x1 << 2,
429};
430
431
432#define TCM_SIMPLE_TAG 0x20
433#define TCM_HEAD_TAG 0x21
434#define TCM_ORDERED_TAG 0x22
435#define TCM_ACA_TAG 0x24
436
437struct se_cmd {
438
439 u8 scsi_status;
440 u8 scsi_asc;
441 u8 scsi_ascq;
442 u16 scsi_sense_length;
443 unsigned cmd_wait_set:1;
444 unsigned unknown_data_length:1;
445 bool state_active:1;
446 u64 tag;
447
448 int alua_nonop_delay;
449
450 enum dma_data_direction data_direction;
451
452 int sam_task_attr;
453
454 unsigned int map_tag;
455
456 enum transport_state_table t_state;
457
458 u32 se_cmd_flags;
459
460 u32 data_length;
461 u32 residual_count;
462 u64 orig_fe_lun;
463
464 u64 pr_res_key;
465
466 void *sense_buffer;
467 struct list_head se_delayed_node;
468 struct list_head se_qf_node;
469 struct se_device *se_dev;
470 struct se_lun *se_lun;
471
472 struct se_session *se_sess;
473 struct se_tmr_req *se_tmr_req;
474 struct list_head se_cmd_list;
475 struct completion cmd_wait_comp;
476 const struct target_core_fabric_ops *se_tfo;
477 sense_reason_t (*execute_cmd)(struct se_cmd *);
478 sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *);
479 void *protocol_data;
480
481 unsigned char *t_task_cdb;
482 unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
483 unsigned long long t_task_lba;
484 unsigned int t_task_nolb;
485 unsigned int transport_state;
486#define CMD_T_ABORTED (1 << 0)
487#define CMD_T_ACTIVE (1 << 1)
488#define CMD_T_COMPLETE (1 << 2)
489#define CMD_T_SENT (1 << 4)
490#define CMD_T_STOP (1 << 5)
491#define CMD_T_DEV_ACTIVE (1 << 7)
492#define CMD_T_BUSY (1 << 9)
493#define CMD_T_TAS (1 << 10)
494#define CMD_T_FABRIC_STOP (1 << 11)
495 spinlock_t t_state_lock;
496 struct kref cmd_kref;
497 struct completion t_transport_stop_comp;
498
499 struct work_struct work;
500
501 struct scatterlist *t_data_sg;
502 struct scatterlist *t_data_sg_orig;
503 unsigned int t_data_nents;
504 unsigned int t_data_nents_orig;
505 void *t_data_vmap;
506 struct scatterlist *t_bidi_data_sg;
507 unsigned int t_bidi_data_nents;
508
509
510 int lun_ref_active;
511
512 struct list_head state_list;
513
514
515 void *priv;
516
517
518 enum target_prot_op prot_op;
519 enum target_prot_type prot_type;
520 u8 prot_checks;
521 bool prot_pto;
522 u32 prot_length;
523 u32 reftag_seed;
524 struct scatterlist *t_prot_sg;
525 unsigned int t_prot_nents;
526 sense_reason_t pi_err;
527 sector_t bad_sector;
528 int cpuid;
529};
530
531struct se_ua {
532 u8 ua_asc;
533 u8 ua_ascq;
534 struct list_head ua_nacl_list;
535};
536
537struct se_node_acl {
538 char initiatorname[TRANSPORT_IQN_LEN];
539
540 bool dynamic_node_acl;
541 u32 queue_depth;
542 u32 acl_index;
543 enum target_prot_type saved_prot_type;
544#define MAX_ACL_TAG_SIZE 64
545 char acl_tag[MAX_ACL_TAG_SIZE];
546
547 atomic_t acl_pr_ref_count;
548 struct hlist_head lun_entry_hlist;
549 struct se_session *nacl_sess;
550 struct se_portal_group *se_tpg;
551 struct mutex lun_entry_mutex;
552 spinlock_t nacl_sess_lock;
553 struct config_group acl_group;
554 struct config_group acl_attrib_group;
555 struct config_group acl_auth_group;
556 struct config_group acl_param_group;
557 struct config_group acl_fabric_stat_group;
558 struct list_head acl_list;
559 struct list_head acl_sess_list;
560 struct completion acl_free_comp;
561 struct kref acl_kref;
562};
563
564static inline struct se_node_acl *acl_to_nacl(struct config_item *item)
565{
566 return container_of(to_config_group(item), struct se_node_acl,
567 acl_group);
568}
569
570static inline struct se_node_acl *attrib_to_nacl(struct config_item *item)
571{
572 return container_of(to_config_group(item), struct se_node_acl,
573 acl_attrib_group);
574}
575
576static inline struct se_node_acl *auth_to_nacl(struct config_item *item)
577{
578 return container_of(to_config_group(item), struct se_node_acl,
579 acl_auth_group);
580}
581
582static inline struct se_node_acl *param_to_nacl(struct config_item *item)
583{
584 return container_of(to_config_group(item), struct se_node_acl,
585 acl_param_group);
586}
587
588static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item)
589{
590 return container_of(to_config_group(item), struct se_node_acl,
591 acl_fabric_stat_group);
592}
593
594struct se_session {
595 unsigned sess_tearing_down:1;
596 u64 sess_bin_isid;
597 enum target_prot_op sup_prot_ops;
598 enum target_prot_type sess_prot_type;
599 struct se_node_acl *se_node_acl;
600 struct se_portal_group *se_tpg;
601 void *fabric_sess_ptr;
602 struct list_head sess_list;
603 struct list_head sess_acl_list;
604 struct list_head sess_cmd_list;
605 struct list_head sess_wait_list;
606 spinlock_t sess_cmd_lock;
607 void *sess_cmd_map;
608 struct percpu_ida sess_tag_pool;
609};
610
611struct se_device;
612struct se_transform_info;
613struct scatterlist;
614
615struct se_ml_stat_grps {
616 struct config_group stat_group;
617 struct config_group scsi_auth_intr_group;
618 struct config_group scsi_att_intr_port_group;
619};
620
621struct se_lun_acl {
622 u64 mapped_lun;
623 struct se_node_acl *se_lun_nacl;
624 struct se_lun *se_lun;
625 struct config_group se_lun_group;
626 struct se_ml_stat_grps ml_stat_grps;
627};
628
629struct se_dev_entry {
630 u64 mapped_lun;
631 u64 pr_res_key;
632 u64 creation_time;
633 bool lun_access_ro;
634 u32 attach_count;
635 atomic_long_t total_cmds;
636 atomic_long_t read_bytes;
637 atomic_long_t write_bytes;
638 atomic_t ua_count;
639
640 struct kref pr_kref;
641 struct completion pr_comp;
642 struct se_lun_acl __rcu *se_lun_acl;
643 spinlock_t ua_lock;
644 struct se_lun __rcu *se_lun;
645#define DEF_PR_REG_ACTIVE 1
646 unsigned long deve_flags;
647 struct list_head alua_port_list;
648 struct list_head lun_link;
649 struct list_head ua_list;
650 struct hlist_node link;
651 struct rcu_head rcu_head;
652};
653
654struct se_dev_attrib {
655 int emulate_model_alias;
656 int emulate_dpo;
657 int emulate_fua_write;
658 int emulate_fua_read;
659 int emulate_write_cache;
660 int emulate_ua_intlck_ctrl;
661 int emulate_tas;
662 int emulate_tpu;
663 int emulate_tpws;
664 int emulate_caw;
665 int emulate_3pc;
666 int pi_prot_format;
667 enum target_prot_type pi_prot_type;
668 enum target_prot_type hw_pi_prot_type;
669 int enforce_pr_isids;
670 int force_pr_aptpl;
671 int is_nonrot;
672 int emulate_rest_reord;
673 int unmap_zeroes_data;
674 u32 hw_block_size;
675 u32 block_size;
676 u32 hw_max_sectors;
677 u32 optimal_sectors;
678 u32 hw_queue_depth;
679 u32 queue_depth;
680 u32 max_unmap_lba_count;
681 u32 max_unmap_block_desc_count;
682 u32 unmap_granularity;
683 u32 unmap_granularity_alignment;
684 u32 max_write_same_len;
685 u32 max_bytes_per_io;
686 struct se_device *da_dev;
687 struct config_group da_group;
688};
689
690struct se_port_stat_grps {
691 struct config_group stat_group;
692 struct config_group scsi_port_group;
693 struct config_group scsi_tgt_port_group;
694 struct config_group scsi_transport_group;
695};
696
697struct scsi_port_stats {
698 atomic_long_t cmd_pdus;
699 atomic_long_t tx_data_octets;
700 atomic_long_t rx_data_octets;
701};
702
703struct se_lun {
704 u64 unpacked_lun;
705#define SE_LUN_LINK_MAGIC 0xffff7771
706 u32 lun_link_magic;
707 bool lun_access_ro;
708 u32 lun_index;
709
710
711 u16 lun_rtpi;
712 atomic_t lun_acl_count;
713 struct se_device __rcu *lun_se_dev;
714
715 struct list_head lun_deve_list;
716 spinlock_t lun_deve_lock;
717
718
719 int lun_tg_pt_secondary_stat;
720 int lun_tg_pt_secondary_write_md;
721 atomic_t lun_tg_pt_secondary_offline;
722 struct mutex lun_tg_pt_md_mutex;
723
724
725 struct list_head lun_tg_pt_gp_link;
726 struct t10_alua_tg_pt_gp *lun_tg_pt_gp;
727 spinlock_t lun_tg_pt_gp_lock;
728
729 struct se_portal_group *lun_tpg;
730 struct scsi_port_stats lun_stats;
731 struct config_group lun_group;
732 struct se_port_stat_grps port_stat_grps;
733 struct completion lun_ref_comp;
734 struct percpu_ref lun_ref;
735 struct list_head lun_dev_link;
736 struct hlist_node link;
737 struct rcu_head rcu_head;
738};
739
740struct se_dev_stat_grps {
741 struct config_group stat_group;
742 struct config_group scsi_dev_group;
743 struct config_group scsi_tgt_dev_group;
744 struct config_group scsi_lu_group;
745};
746
747struct se_device {
748#define SE_DEV_LINK_MAGIC 0xfeeddeef
749 u32 dev_link_magic;
750
751 u16 dev_rpti_counter;
752
753 u32 dev_cur_ordered_id;
754 u32 dev_flags;
755#define DF_CONFIGURED 0x00000001
756#define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002
757#define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004
758#define DF_USING_UDEV_PATH 0x00000008
759#define DF_USING_ALIAS 0x00000010
760#define DF_READ_ONLY 0x00000020
761
762 u32 queue_depth;
763
764 u64 dev_res_bin_isid;
765
766 u32 dev_index;
767 u64 creation_time;
768 atomic_long_t num_resets;
769 atomic_long_t num_cmds;
770 atomic_long_t read_bytes;
771 atomic_long_t write_bytes;
772
773 atomic_t simple_cmds;
774 atomic_t dev_ordered_sync;
775 atomic_t dev_qf_count;
776 u32 export_count;
777 spinlock_t delayed_cmd_lock;
778 spinlock_t execute_task_lock;
779 spinlock_t dev_reservation_lock;
780 unsigned int dev_reservation_flags;
781#define DRF_SPC2_RESERVATIONS 0x00000001
782#define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002
783 spinlock_t se_port_lock;
784 spinlock_t se_tmr_lock;
785 spinlock_t qf_cmd_lock;
786 struct semaphore caw_sem;
787
788 struct se_node_acl *dev_reserved_node_acl;
789
790 struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
791
792 struct t10_pr_registration *dev_pr_res_holder;
793 struct list_head dev_sep_list;
794 struct list_head dev_tmr_list;
795 struct workqueue_struct *tmr_wq;
796 struct work_struct qf_work_queue;
797 struct list_head delayed_cmd_list;
798 struct list_head state_list;
799 struct list_head qf_cmd_list;
800 struct list_head g_dev_node;
801
802 struct se_hba *se_hba;
803
804 struct t10_wwn t10_wwn;
805
806 struct t10_alua t10_alua;
807
808 struct t10_reservation t10_pr;
809 struct se_dev_attrib dev_attrib;
810 struct config_group dev_group;
811 struct config_group dev_pr_group;
812 struct se_dev_stat_grps dev_stat_grps;
813#define SE_DEV_ALIAS_LEN 512
814 unsigned char dev_alias[SE_DEV_ALIAS_LEN];
815#define SE_UDEV_PATH_LEN 512
816 unsigned char udev_path[SE_UDEV_PATH_LEN];
817
818 const struct target_backend_ops *transport;
819
820 struct list_head dev_list;
821 struct se_lun xcopy_lun;
822
823 int prot_length;
824
825 u32 hba_index;
826 struct rcu_head rcu_head;
827};
828
829struct se_hba {
830 u16 hba_tpgt;
831 u32 hba_id;
832
833 u32 hba_flags;
834
835 u32 dev_count;
836 u32 hba_index;
837
838 void *hba_ptr;
839 struct list_head hba_node;
840 spinlock_t device_lock;
841 struct config_group hba_group;
842 struct mutex hba_access_mutex;
843 struct target_backend *backend;
844};
845
846struct se_tpg_np {
847 struct se_portal_group *tpg_np_parent;
848 struct config_group tpg_np_group;
849};
850
851static inline struct se_tpg_np *to_tpg_np(struct config_item *item)
852{
853 return container_of(to_config_group(item), struct se_tpg_np,
854 tpg_np_group);
855}
856
857struct se_portal_group {
858
859
860
861
862
863 int proto_id;
864
865 atomic_t tpg_pr_ref_count;
866
867 struct mutex acl_node_mutex;
868
869 spinlock_t session_lock;
870 struct mutex tpg_lun_mutex;
871 struct list_head se_tpg_node;
872
873 struct list_head acl_node_list;
874 struct hlist_head tpg_lun_hlist;
875 struct se_lun *tpg_virt_lun0;
876
877 struct list_head tpg_sess_list;
878
879 const struct target_core_fabric_ops *se_tpg_tfo;
880 struct se_wwn *se_tpg_wwn;
881 struct config_group tpg_group;
882 struct config_group tpg_lun_group;
883 struct config_group tpg_np_group;
884 struct config_group tpg_acl_group;
885 struct config_group tpg_attrib_group;
886 struct config_group tpg_auth_group;
887 struct config_group tpg_param_group;
888};
889
890static inline struct se_portal_group *to_tpg(struct config_item *item)
891{
892 return container_of(to_config_group(item), struct se_portal_group,
893 tpg_group);
894}
895
896static inline struct se_portal_group *attrib_to_tpg(struct config_item *item)
897{
898 return container_of(to_config_group(item), struct se_portal_group,
899 tpg_attrib_group);
900}
901
902static inline struct se_portal_group *auth_to_tpg(struct config_item *item)
903{
904 return container_of(to_config_group(item), struct se_portal_group,
905 tpg_auth_group);
906}
907
908static inline struct se_portal_group *param_to_tpg(struct config_item *item)
909{
910 return container_of(to_config_group(item), struct se_portal_group,
911 tpg_param_group);
912}
913
914struct se_wwn {
915 struct target_fabric_configfs *wwn_tf;
916 struct config_group wwn_group;
917 struct config_group fabric_stat_group;
918};
919
920static inline void atomic_inc_mb(atomic_t *v)
921{
922 smp_mb__before_atomic();
923 atomic_inc(v);
924 smp_mb__after_atomic();
925}
926
927static inline void atomic_dec_mb(atomic_t *v)
928{
929 smp_mb__before_atomic();
930 atomic_dec(v);
931 smp_mb__after_atomic();
932}
933
934#endif
935
