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target: Fix incorrect transport_sent usage
[GitHub/exynos8895/android_kernel_samsung_universal8895.git] / include / target / target_core_base.h
CommitLineData
c66ac9db
NB		 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 <scsi/scsi_cmnd.h>
9#include <net/sock.h>
10#include <net/tcp.h>
c66ac9db 11
fa495159 12#define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml"
c66ac9db 13
c66ac9db 14/* Maximum Number of LUNs per Target Portal Group */
d0229ae3 15/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
c66ac9db
NB		 16#define TRANSPORT_MAX_LUNS_PER_TPG 256
17/*
18 * By default we use 32-byte CDBs in TCM Core and subsystem plugin code.
19 *
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
25985edc 23 * 32-byte CDBs to because of legacy issues.
c66ac9db
NB		 24 *
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.
28 */
29#define TCM_MAX_COMMAND_SIZE 32
30/*
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)
33 */
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_ASC_KEY_OFFSET 12
38#define SPC_ASCQ_KEY_OFFSET 13
39#define TRANSPORT_IQN_LEN 224
40/* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */
41#define LU_GROUP_NAME_BUF 256
42/* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */
43#define TG_PT_GROUP_NAME_BUF 256
44/* Used to parse VPD into struct t10_vpd */
45#define VPD_TMP_BUF_SIZE 128
46/* Used by transport_generic_cmd_sequencer() */
47#define READ_BLOCK_LEN 6
48#define READ_CAP_LEN 8
49#define READ_POSITION_LEN 20
50#define INQUIRY_LEN 36
51/* Used by transport_get_inquiry_vpd_serial() */
52#define INQUIRY_VPD_SERIAL_LEN 254
53/* Used by transport_get_inquiry_vpd_device_ident() */
54#define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
55
56/* struct se_hba->hba_flags */
57enum hba_flags_table {
58 HBA_FLAGS_INTERNAL_USE = 0x01,
59 HBA_FLAGS_PSCSI_MODE = 0x02,
60};
61
62/* struct se_lun->lun_status */
63enum transport_lun_status_table {
64 TRANSPORT_LUN_STATUS_FREE = 0,
65 TRANSPORT_LUN_STATUS_ACTIVE = 1,
66};
67
68/* struct se_portal_group->se_tpg_type */
69enum transport_tpg_type_table {
70 TRANSPORT_TPG_TYPE_NORMAL = 0,
71 TRANSPORT_TPG_TYPE_DISCOVERY = 1,
72};
73
74/* Used for generate timer flags */
6c76bf95
CH		 75enum se_task_flags {
76 TF_ACTIVE = (1 << 0),
77 TF_SENT = (1 << 1),
78 TF_TIMEOUT = (1 << 2),
79 TF_REQUEST_STOP = (1 << 3),
c66ac9db
NB		 80};
81
82/* Special transport agnostic struct se_cmd->t_states */
83enum transport_state_table {
84 TRANSPORT_NO_STATE = 0,
85 TRANSPORT_NEW_CMD = 1,
c66ac9db
NB		 86 TRANSPORT_WRITE_PENDING = 3,
87 TRANSPORT_PROCESS_WRITE = 4,
88 TRANSPORT_PROCESSING = 5,
35e0e757 89 TRANSPORT_COMPLETE = 6,
c66ac9db 90 TRANSPORT_PROCESS_TMR = 9,
c66ac9db 91 TRANSPORT_ISTATE_PROCESSING = 11,
c66ac9db 92 TRANSPORT_NEW_CMD_MAP = 16,
f4366772 93 TRANSPORT_FREE_CMD_INTR = 17,
07bde79a 94 TRANSPORT_COMPLETE_QF_WP = 18,
e057f533 95 TRANSPORT_COMPLETE_QF_OK = 19,
c66ac9db
NB		 96};
97
98/* Used for struct se_cmd->se_cmd_flags */
99enum se_cmd_flags_table {
100 SCF_SUPPORTED_SAM_OPCODE = 0x00000001,
101 SCF_TRANSPORT_TASK_SENSE = 0x00000002,
102 SCF_EMULATED_TASK_SENSE = 0x00000004,
103 SCF_SCSI_DATA_SG_IO_CDB = 0x00000008,
104 SCF_SCSI_CONTROL_SG_IO_CDB = 0x00000010,
c66ac9db
NB		 105 SCF_SCSI_NON_DATA_CDB = 0x00000040,
106 SCF_SCSI_CDB_EXCEPTION = 0x00000080,
107 SCF_SCSI_RESERVATION_CONFLICT = 0x00000100,
c66ac9db
NB		 108 SCF_SE_CMD_FAILED = 0x00000400,
109 SCF_SE_LUN_CMD = 0x00000800,
110 SCF_SE_ALLOW_EOO = 0x00001000,
c66ac9db
NB		 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,
5951146d 117 SCF_UNUSED = 0x00100000,
c66ac9db 118 SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00400000,
c66ac9db 119 SCF_EMULATE_CDB_ASYNC = 0x01000000,
c66ac9db
NB		 120};
121
122/* struct se_dev_entry->lun_flags and struct se_lun->lun_access */
123enum transport_lunflags_table {
124 TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00,
125 TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01,
126 TRANSPORT_LUNFLAGS_READ_ONLY = 0x02,
127 TRANSPORT_LUNFLAGS_READ_WRITE = 0x04,
128};
129
130/* struct se_device->dev_status */
131enum transport_device_status_table {
132 TRANSPORT_DEVICE_ACTIVATED = 0x01,
133 TRANSPORT_DEVICE_DEACTIVATED = 0x02,
134 TRANSPORT_DEVICE_QUEUE_FULL = 0x04,
135 TRANSPORT_DEVICE_SHUTDOWN = 0x08,
136 TRANSPORT_DEVICE_OFFLINE_ACTIVATED = 0x10,
137 TRANSPORT_DEVICE_OFFLINE_DEACTIVATED = 0x20,
138};
139
140/*
141 * Used by transport_send_check_condition_and_sense() and se_cmd->scsi_sense_reason
142 * to signal which ASC/ASCQ sense payload should be built.
143 */
144enum tcm_sense_reason_table {
145 TCM_NON_EXISTENT_LUN = 0x01,
146 TCM_UNSUPPORTED_SCSI_OPCODE = 0x02,
147 TCM_INCORRECT_AMOUNT_OF_DATA = 0x03,
148 TCM_UNEXPECTED_UNSOLICITED_DATA = 0x04,
149 TCM_SERVICE_CRC_ERROR = 0x05,
150 TCM_SNACK_REJECTED = 0x06,
151 TCM_SECTOR_COUNT_TOO_MANY = 0x07,
152 TCM_INVALID_CDB_FIELD = 0x08,
153 TCM_INVALID_PARAMETER_LIST = 0x09,
154 TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = 0x0a,
155 TCM_UNKNOWN_MODE_PAGE = 0x0b,
156 TCM_WRITE_PROTECTED = 0x0c,
157 TCM_CHECK_CONDITION_ABORT_CMD = 0x0d,
158 TCM_CHECK_CONDITION_UNIT_ATTENTION = 0x0e,
159 TCM_CHECK_CONDITION_NOT_READY = 0x0f,
160};
161
162struct se_obj {
163 atomic_t obj_access_count;
164} ____cacheline_aligned;
165
166/*
167 * Used by TCM Core internally to signal if ALUA emulation is enabled or
168 * disabled, or running in with TCM/pSCSI passthrough mode
169 */
170typedef enum {
171 SPC_ALUA_PASSTHROUGH,
172 SPC2_ALUA_DISABLED,
173 SPC3_ALUA_EMULATED
174} t10_alua_index_t;
175
176/*
177 * Used by TCM Core internally to signal if SAM Task Attribute emulation
178 * is enabled or disabled, or running in with TCM/pSCSI passthrough mode
179 */
180typedef enum {
181 SAM_TASK_ATTR_PASSTHROUGH,
182 SAM_TASK_ATTR_UNTAGGED,
183 SAM_TASK_ATTR_EMULATED
184} t10_task_attr_index_t;
185
e89d15ee
NB		 186/*
187 * Used for target SCSI statistics
188 */
189typedef enum {
190 SCSI_INST_INDEX,
191 SCSI_DEVICE_INDEX,
192 SCSI_AUTH_INTR_INDEX,
193 SCSI_INDEX_TYPE_MAX
194} scsi_index_t;
195
c66ac9db
NB		 196struct se_cmd;
197
198struct t10_alua {
199 t10_alua_index_t alua_type;
200 /* ALUA Target Port Group ID */
201 u16 alua_tg_pt_gps_counter;
202 u32 alua_tg_pt_gps_count;
203 spinlock_t tg_pt_gps_lock;
204 struct se_subsystem_dev *t10_sub_dev;
205 /* Used for default ALUA Target Port Group */
206 struct t10_alua_tg_pt_gp *default_tg_pt_gp;
207 /* Used for default ALUA Target Port Group ConfigFS group */
208 struct config_group alua_tg_pt_gps_group;
209 int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
210 struct list_head tg_pt_gps_list;
211} ____cacheline_aligned;
212
213struct t10_alua_lu_gp {
214 u16 lu_gp_id;
215 int lu_gp_valid_id;
216 u32 lu_gp_members;
217 atomic_t lu_gp_shutdown;
218 atomic_t lu_gp_ref_cnt;
219 spinlock_t lu_gp_lock;
220 struct config_group lu_gp_group;
e3d6f909 221 struct list_head lu_gp_node;
c66ac9db
NB		 222 struct list_head lu_gp_mem_list;
223} ____cacheline_aligned;
224
225struct t10_alua_lu_gp_member {
5dd7ed2e 226 bool lu_gp_assoc;
c66ac9db
NB		 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;
233
234struct t10_alua_tg_pt_gp {
235 u16 tg_pt_gp_id;
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;
241 int tg_pt_gp_pref;
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;
256
257struct t10_alua_tg_pt_gp_member {
5dd7ed2e 258 bool tg_pt_gp_assoc;
c66ac9db
NB		 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;
265
266struct t10_vpd {
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;
271 u32 association;
272 u32 device_identifier_type;
273 struct list_head vpd_list;
274} ____cacheline_aligned;
275
276struct t10_wwn {
e3d6f909
AG		 277 char vendor[8];
278 char model[16];
279 char revision[4];
280 char unit_serial[INQUIRY_VPD_SERIAL_LEN];
c66ac9db
NB		 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;
286
287
288/*
25985edc 289 * Used by TCM Core internally to signal if >= SPC-3 persistent reservations
c66ac9db
NB		 290 * emulation is enabled or disabled, or running in with TCM/pSCSI passthrough
291 * mode
292 */
293typedef enum {
294 SPC_PASSTHROUGH,
295 SPC2_RESERVATIONS,
296 SPC3_PERSISTENT_RESERVATIONS
297} t10_reservations_index_t;
298
299struct 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;
313 u16 pr_aptpl_rpti;
314 u16 pr_reg_tpgt;
315 /* Reservation effects all target ports */
316 int pr_reg_all_tg_pt;
317 /* Activate Persistence across Target Power Loss */
318 int pr_reg_aptpl;
319 int pr_res_holder;
320 int pr_res_type;
321 int pr_res_scope;
322 /* Used for fabric initiator WWPNs using a ISID */
5dd7ed2e 323 bool isid_present_at_reg;
c66ac9db
NB		 324 u32 pr_res_mapped_lun;
325 u32 pr_aptpl_target_lun;
326 u32 pr_res_generation;
327 u64 pr_reg_bin_isid;
328 u64 pr_res_key;
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;
339
340/*
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()
344 */
345struct 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 *);
350};
351
e3d6f909 352struct t10_reservation {
c66ac9db
NB		 353 /* Reservation effects all target ports */
354 int pr_all_tg_pt;
355 /* Activate Persistence across Target Power Loss enabled
356 * for SCSI device */
357 int pr_aptpl_active;
e3d6f909 358 /* Used by struct t10_reservation->pr_aptpl_buf_len */
c66ac9db
NB		 359#define PR_APTPL_BUF_LEN 8192
360 u32 pr_aptpl_buf_len;
361 u32 pr_generation;
362 t10_reservations_index_t res_type;
363 spinlock_t registration_lock;
364 spinlock_t aptpl_reg_lock;
365 /*
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
369 * target port.
370 *
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.
374 */
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;
380
381struct se_queue_req {
382 int state;
e3d6f909 383 struct se_cmd *cmd;
c66ac9db
NB		 384 struct list_head qr_list;
385} ____cacheline_aligned;
386
387struct se_queue_obj {
388 atomic_t queue_cnt;
389 spinlock_t cmd_queue_lock;
390 struct list_head qobj_list;
391 wait_queue_head_t thread_wq;
392} ____cacheline_aligned;
393
c66ac9db 394struct se_task {
c66ac9db 395 unsigned long long task_lba;
3189b067
CH		 396 u32 task_sectors;
397 u32 task_size;
398 struct se_cmd *task_se_cmd;
399 struct scatterlist *task_sg;
3189b067
CH		 400 u32 task_sg_nents;
401 u16 task_flags;
402 u8 task_sense;
403 u8 task_scsi_status;
404 int task_error_status;
c66ac9db 405 enum dma_data_direction task_data_direction;
3189b067 406 atomic_t task_state_active;
c66ac9db 407 struct timer_list task_timer;
3189b067
CH		 408 struct list_head t_list;
409 struct list_head t_execute_list;
410 struct list_head t_state_list;
411 struct completion task_stop_comp;
c66ac9db
NB		 412} ____cacheline_aligned;
413
c66ac9db
NB		 414struct se_cmd {
415 /* SAM response code being sent to initiator */
416 u8 scsi_status;
417 u8 scsi_asc;
418 u8 scsi_ascq;
419 u8 scsi_sense_reason;
420 u16 scsi_sense_length;
421 /* Delay for ALUA Active/NonOptimized state access in milliseconds */
422 int alua_nonop_delay;
423 /* See include/linux/dma-mapping.h */
424 enum dma_data_direction data_direction;
425 /* For SAM Task Attribute */
426 int sam_task_attr;
427 /* Transport protocol dependent state, see transport_state_table */
428 enum transport_state_table t_state;
c66ac9db
NB		 429 /* Transport specific error status */
430 int transport_error_status;
431 /* See se_cmd_flags_table */
432 u32 se_cmd_flags;
433 u32 se_ordered_id;
434 /* Total size in bytes associated with command */
435 u32 data_length;
436 /* SCSI Presented Data Transfer Length */
437 u32 cmd_spdtl;
438 u32 residual_count;
439 u32 orig_fe_lun;
440 /* Persistent Reservation key */
441 u64 pr_res_key;
c66ac9db
NB		 442 /* Used for sense data */
443 void *sense_buffer;
5951146d
AG		 444 struct list_head se_delayed_node;
445 struct list_head se_ordered_node;
446 struct list_head se_lun_node;
07bde79a 447 struct list_head se_qf_node;
c66ac9db
NB		 448 struct se_device *se_dev;
449 struct se_dev_entry *se_deve;
450 struct se_device *se_obj_ptr;
451 struct se_device *se_orig_obj_ptr;
452 struct se_lun *se_lun;
453 /* Only used for internal passthrough and legacy TCM fabric modules */
454 struct se_session *se_sess;
455 struct se_tmr_req *se_tmr_req;
5951146d 456 struct list_head se_queue_node;
c66ac9db
NB		 457 struct target_core_fabric_ops *se_tfo;
458 int (*transport_emulate_cdb)(struct se_cmd *);
c66ac9db 459 void (*transport_complete_callback)(struct se_cmd *);
07bde79a 460
a1d8b49a
AG		 461 unsigned char *t_task_cdb;
462 unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE];
463 unsigned long long t_task_lba;
464 int t_tasks_failed;
465 int t_tasks_fua;
466 bool t_tasks_bidi;
a1d8b49a
AG		 467 u32 t_tasks_sg_chained_no;
468 atomic_t t_fe_count;
469 atomic_t t_se_count;
470 atomic_t t_task_cdbs_left;
471 atomic_t t_task_cdbs_ex_left;
472 atomic_t t_task_cdbs_timeout_left;
473 atomic_t t_task_cdbs_sent;
474 atomic_t t_transport_aborted;
475 atomic_t t_transport_active;
476 atomic_t t_transport_complete;
477 atomic_t t_transport_queue_active;
478 atomic_t t_transport_sent;
479 atomic_t t_transport_stop;
480 atomic_t t_transport_timeout;
481 atomic_t transport_dev_active;
482 atomic_t transport_lun_active;
483 atomic_t transport_lun_fe_stop;
484 atomic_t transport_lun_stop;
485 spinlock_t t_state_lock;
486 struct completion t_transport_stop_comp;
487 struct completion transport_lun_fe_stop_comp;
488 struct completion transport_lun_stop_comp;
489 struct scatterlist *t_tasks_sg_chained;
05d1c7c0 490
35e0e757
CH		 491 struct work_struct work;
492
a1d8b49a
AG		 493 /*
494 * Used for pre-registered fabric SGL passthrough WRITE and READ
495 * with the special SCF_PASSTHROUGH_CONTIG_TO_SG case for TCM_Loop
496 * and other HW target mode fabric modules.
497 */
498 struct scatterlist *t_task_pt_sgl;
499 u32 t_task_pt_sgl_num;
ec98f782
AG		 500
501 struct scatterlist *t_data_sg;
502 unsigned int t_data_nents;
503 struct scatterlist *t_bidi_data_sg;
504 unsigned int t_bidi_data_nents;
505
a1d8b49a 506 /* Used for BIDI READ */
a1d8b49a
AG		 507 struct list_head t_task_list;
508 u32 t_task_list_num;
509
c66ac9db
NB		 510} ____cacheline_aligned;
511
c66ac9db
NB		 512struct se_tmr_req {
513 /* Task Management function to be preformed */
514 u8 function;
515 /* Task Management response to send */
516 u8 response;
517 int call_transport;
518 /* Reference to ITT that Task Mgmt should be preformed */
519 u32 ref_task_tag;
520 /* 64-bit encoded SAM LUN from $FABRIC_MOD TMR header */
521 u64 ref_task_lun;
522 void *fabric_tmr_ptr;
523 struct se_cmd *task_cmd;
524 struct se_cmd *ref_cmd;
525 struct se_device *tmr_dev;
526 struct se_lun *tmr_lun;
527 struct list_head tmr_list;
528} ____cacheline_aligned;
529
530struct se_ua {
531 u8 ua_asc;
532 u8 ua_ascq;
533 struct se_node_acl *ua_nacl;
534 struct list_head ua_dev_list;
535 struct list_head ua_nacl_list;
536} ____cacheline_aligned;
537
538struct se_node_acl {
539 char initiatorname[TRANSPORT_IQN_LEN];
540 /* Used to signal demo mode created ACL, disabled by default */
5dd7ed2e 541 bool dynamic_node_acl;
c66ac9db
NB		 542 u32 queue_depth;
543 u32 acl_index;
544 u64 num_cmds;
545 u64 read_bytes;
546 u64 write_bytes;
547 spinlock_t stats_lock;
548 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
549 atomic_t acl_pr_ref_count;
c66ac9db
NB		 550 struct se_dev_entry *device_list;
551 struct se_session *nacl_sess;
552 struct se_portal_group *se_tpg;
553 spinlock_t device_list_lock;
554 spinlock_t nacl_sess_lock;
555 struct config_group acl_group;
556 struct config_group acl_attrib_group;
557 struct config_group acl_auth_group;
558 struct config_group acl_param_group;
12d23384
NB		 559 struct config_group acl_fabric_stat_group;
560 struct config_group *acl_default_groups[5];
c66ac9db
NB		 561 struct list_head acl_list;
562 struct list_head acl_sess_list;
563} ____cacheline_aligned;
564
565struct se_session {
c66ac9db
NB		 566 u64 sess_bin_isid;
567 struct se_node_acl *se_node_acl;
568 struct se_portal_group *se_tpg;
569 void *fabric_sess_ptr;
570 struct list_head sess_list;
571 struct list_head sess_acl_list;
572} ____cacheline_aligned;
573
c66ac9db
NB		 574struct se_device;
575struct se_transform_info;
576struct scatterlist;
577
12d23384
NB		 578struct se_ml_stat_grps {
579 struct config_group stat_group;
580 struct config_group scsi_auth_intr_group;
581 struct config_group scsi_att_intr_port_group;
582};
583
c66ac9db
NB		 584struct se_lun_acl {
585 char initiatorname[TRANSPORT_IQN_LEN];
586 u32 mapped_lun;
587 struct se_node_acl *se_lun_nacl;
588 struct se_lun *se_lun;
589 struct list_head lacl_list;
590 struct config_group se_lun_group;
12d23384 591 struct se_ml_stat_grps ml_stat_grps;
c66ac9db
NB		 592} ____cacheline_aligned;
593
594struct se_dev_entry {
5dd7ed2e 595 bool def_pr_registered;
c66ac9db
NB		 596 /* See transport_lunflags_table */
597 u32 lun_flags;
598 u32 deve_cmds;
599 u32 mapped_lun;
600 u32 average_bytes;
601 u32 last_byte_count;
602 u32 total_cmds;
603 u32 total_bytes;
604 u64 pr_res_key;
605 u64 creation_time;
606 u32 attach_count;
607 u64 read_bytes;
608 u64 write_bytes;
609 atomic_t ua_count;
610 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
611 atomic_t pr_ref_count;
612 struct se_lun_acl *se_lun_acl;
613 spinlock_t ua_lock;
614 struct se_lun *se_lun;
615 struct list_head alua_port_list;
616 struct list_head ua_list;
617} ____cacheline_aligned;
618
619struct se_dev_limits {
620 /* Max supported HW queue depth */
621 u32 hw_queue_depth;
622 /* Max supported virtual queue depth */
623 u32 queue_depth;
624 /* From include/linux/blkdev.h for the other HW/SW limits. */
625 struct queue_limits limits;
626} ____cacheline_aligned;
627
628struct se_dev_attrib {
629 int emulate_dpo;
630 int emulate_fua_write;
631 int emulate_fua_read;
632 int emulate_write_cache;
633 int emulate_ua_intlck_ctrl;
634 int emulate_tas;
635 int emulate_tpu;
636 int emulate_tpws;
637 int emulate_reservations;
638 int emulate_alua;
639 int enforce_pr_isids;
e22a7f07 640 int is_nonrot;
5de619a3 641 int emulate_rest_reord;
c66ac9db
NB		 642 u32 hw_block_size;
643 u32 block_size;
644 u32 hw_max_sectors;
645 u32 max_sectors;
646 u32 optimal_sectors;
647 u32 hw_queue_depth;
648 u32 queue_depth;
649 u32 task_timeout;
650 u32 max_unmap_lba_count;
651 u32 max_unmap_block_desc_count;
652 u32 unmap_granularity;
653 u32 unmap_granularity_alignment;
654 struct se_subsystem_dev *da_sub_dev;
655 struct config_group da_group;
656} ____cacheline_aligned;
657
12d23384
NB		 658struct se_dev_stat_grps {
659 struct config_group stat_group;
660 struct config_group scsi_dev_group;
661 struct config_group scsi_tgt_dev_group;
662 struct config_group scsi_lu_group;
663};
664
c66ac9db
NB		 665struct se_subsystem_dev {
666/* Used for struct se_subsystem_dev-->se_dev_alias, must be less than PAGE_SIZE */
667#define SE_DEV_ALIAS_LEN 512
668 unsigned char se_dev_alias[SE_DEV_ALIAS_LEN];
669/* Used for struct se_subsystem_dev->se_dev_udev_path[], must be less than PAGE_SIZE */
670#define SE_UDEV_PATH_LEN 512
671 unsigned char se_dev_udev_path[SE_UDEV_PATH_LEN];
672 u32 su_dev_flags;
673 struct se_hba *se_dev_hba;
674 struct se_device *se_dev_ptr;
675 struct se_dev_attrib se_dev_attrib;
676 /* T10 Asymmetric Logical Unit Assignment for Target Ports */
677 struct t10_alua t10_alua;
678 /* T10 Inquiry and VPD WWN Information */
679 struct t10_wwn t10_wwn;
680 /* T10 SPC-2 + SPC-3 Reservations */
e3d6f909 681 struct t10_reservation t10_pr;
c66ac9db
NB		 682 spinlock_t se_dev_lock;
683 void *se_dev_su_ptr;
e3d6f909 684 struct list_head se_dev_node;
c66ac9db
NB		 685 struct config_group se_dev_group;
686 /* For T10 Reservations */
687 struct config_group se_dev_pr_group;
12d23384
NB		 688 /* For target_core_stat.c groups */
689 struct se_dev_stat_grps dev_stat_grps;
c66ac9db
NB		 690} ____cacheline_aligned;
691
c66ac9db
NB		 692struct se_device {
693 /* Set to 1 if thread is NOT sleeping on thread_sem */
694 u8 thread_active;
695 u8 dev_status_timer_flags;
696 /* RELATIVE TARGET PORT IDENTIFER Counter */
697 u16 dev_rpti_counter;
698 /* Used for SAM Task Attribute ordering */
699 u32 dev_cur_ordered_id;
700 u32 dev_flags;
701 u32 dev_port_count;
702 /* See transport_device_status_table */
703 u32 dev_status;
704 u32 dev_tcq_window_closed;
705 /* Physical device queue depth */
706 u32 queue_depth;
707 /* Used for SPC-2 reservations enforce of ISIDs */
708 u64 dev_res_bin_isid;
709 t10_task_attr_index_t dev_task_attr_type;
710 /* Pointer to transport specific device structure */
711 void *dev_ptr;
712 u32 dev_index;
713 u64 creation_time;
714 u32 num_resets;
715 u64 num_cmds;
716 u64 read_bytes;
717 u64 write_bytes;
718 spinlock_t stats_lock;
719 /* Active commands on this virtual SE device */
720 atomic_t active_cmds;
721 atomic_t simple_cmds;
722 atomic_t depth_left;
723 atomic_t dev_ordered_id;
724 atomic_t dev_tur_active;
725 atomic_t execute_tasks;
726 atomic_t dev_status_thr_count;
727 atomic_t dev_hoq_count;
728 atomic_t dev_ordered_sync;
07bde79a 729 atomic_t dev_qf_count;
c66ac9db
NB		 730 struct se_obj dev_obj;
731 struct se_obj dev_access_obj;
732 struct se_obj dev_export_obj;
e3d6f909 733 struct se_queue_obj dev_queue_obj;
c66ac9db
NB		 734 spinlock_t delayed_cmd_lock;
735 spinlock_t ordered_cmd_lock;
736 spinlock_t execute_task_lock;
737 spinlock_t state_task_lock;
738 spinlock_t dev_alua_lock;
739 spinlock_t dev_reservation_lock;
740 spinlock_t dev_state_lock;
741 spinlock_t dev_status_lock;
742 spinlock_t dev_status_thr_lock;
743 spinlock_t se_port_lock;
744 spinlock_t se_tmr_lock;
07bde79a 745 spinlock_t qf_cmd_lock;
c66ac9db
NB		 746 /* Used for legacy SPC-2 reservationsa */
747 struct se_node_acl *dev_reserved_node_acl;
748 /* Used for ALUA Logical Unit Group membership */
749 struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem;
750 /* Used for SPC-3 Persistent Reservations */
751 struct t10_pr_registration *dev_pr_res_holder;
752 struct list_head dev_sep_list;
753 struct list_head dev_tmr_list;
754 struct timer_list dev_status_timer;
755 /* Pointer to descriptor for processing thread */
756 struct task_struct *process_thread;
757 pid_t process_thread_pid;
758 struct task_struct *dev_mgmt_thread;
07bde79a 759 struct work_struct qf_work_queue;
c66ac9db
NB		 760 struct list_head delayed_cmd_list;
761 struct list_head ordered_cmd_list;
762 struct list_head execute_task_list;
763 struct list_head state_task_list;
07bde79a 764 struct list_head qf_cmd_list;
c66ac9db
NB		 765 /* Pointer to associated SE HBA */
766 struct se_hba *se_hba;
767 struct se_subsystem_dev *se_sub_dev;
768 /* Pointer to template of function pointers for transport */
769 struct se_subsystem_api *transport;
770 /* Linked list for struct se_hba struct se_device list */
771 struct list_head dev_list;
772 /* Linked list for struct se_global->g_se_dev_list */
773 struct list_head g_se_dev_list;
774} ____cacheline_aligned;
775
c66ac9db
NB		 776struct se_hba {
777 u16 hba_tpgt;
778 u32 hba_id;
779 /* See hba_flags_table */
780 u32 hba_flags;
781 /* Virtual iSCSI devices attached. */
782 u32 dev_count;
783 u32 hba_index;
c66ac9db
NB		 784 /* Pointer to transport specific host structure. */
785 void *hba_ptr;
786 /* Linked list for struct se_device */
787 struct list_head hba_dev_list;
e3d6f909 788 struct list_head hba_node;
c66ac9db 789 spinlock_t device_lock;
c66ac9db
NB		 790 struct config_group hba_group;
791 struct mutex hba_access_mutex;
792 struct se_subsystem_api *transport;
793} ____cacheline_aligned;
794
12d23384
NB		 795struct se_port_stat_grps {
796 struct config_group stat_group;
797 struct config_group scsi_port_group;
798 struct config_group scsi_tgt_port_group;
799 struct config_group scsi_transport_group;
800};
801
c66ac9db
NB		 802struct se_lun {
803 /* See transport_lun_status_table */
804 enum transport_lun_status_table lun_status;
805 u32 lun_access;
806 u32 lun_flags;
807 u32 unpacked_lun;
808 atomic_t lun_acl_count;
809 spinlock_t lun_acl_lock;
810 spinlock_t lun_cmd_lock;
811 spinlock_t lun_sep_lock;
812 struct completion lun_shutdown_comp;
813 struct list_head lun_cmd_list;
814 struct list_head lun_acl_list;
815 struct se_device *lun_se_dev;
12d23384 816 struct se_port *lun_sep;
c66ac9db 817 struct config_group lun_group;
12d23384 818 struct se_port_stat_grps port_stat_grps;
c66ac9db
NB		 819} ____cacheline_aligned;
820
e89d15ee
NB		 821struct scsi_port_stats {
822 u64 cmd_pdus;
823 u64 tx_data_octets;
824 u64 rx_data_octets;
825} ____cacheline_aligned;
826
c66ac9db
NB		 827struct se_port {
828 /* RELATIVE TARGET PORT IDENTIFER */
829 u16 sep_rtpi;
830 int sep_tg_pt_secondary_stat;
831 int sep_tg_pt_secondary_write_md;
832 u32 sep_index;
833 struct scsi_port_stats sep_stats;
834 /* Used for ALUA Target Port Groups membership */
835 atomic_t sep_tg_pt_gp_active;
836 atomic_t sep_tg_pt_secondary_offline;
837 /* Used for PR ALL_TG_PT=1 */
838 atomic_t sep_tg_pt_ref_cnt;
839 spinlock_t sep_alua_lock;
840 struct mutex sep_tg_pt_md_mutex;
841 struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem;
842 struct se_lun *sep_lun;
843 struct se_portal_group *sep_tpg;
844 struct list_head sep_alua_list;
845 struct list_head sep_list;
846} ____cacheline_aligned;
847
848struct se_tpg_np {
1f6fe7cb 849 struct se_portal_group *tpg_np_parent;
c66ac9db
NB		 850 struct config_group tpg_np_group;
851} ____cacheline_aligned;
852
853struct se_portal_group {
854 /* Type of target portal group, see transport_tpg_type_table */
855 enum transport_tpg_type_table se_tpg_type;
856 /* Number of ACLed Initiator Nodes for this TPG */
857 u32 num_node_acls;
858 /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */
859 atomic_t tpg_pr_ref_count;
860 /* Spinlock for adding/removing ACLed Nodes */
861 spinlock_t acl_node_lock;
862 /* Spinlock for adding/removing sessions */
863 spinlock_t session_lock;
864 spinlock_t tpg_lun_lock;
865 /* Pointer to $FABRIC_MOD portal group */
866 void *se_tpg_fabric_ptr;
e3d6f909 867 struct list_head se_tpg_node;
c66ac9db
NB		 868 /* linked list for initiator ACL list */
869 struct list_head acl_node_list;
870 struct se_lun *tpg_lun_list;
871 struct se_lun tpg_virt_lun0;
25985edc 872 /* List of TCM sessions associated wth this TPG */
c66ac9db
NB		 873 struct list_head tpg_sess_list;
874 /* Pointer to $FABRIC_MOD dependent code */
875 struct target_core_fabric_ops *se_tpg_tfo;
876 struct se_wwn *se_tpg_wwn;
877 struct config_group tpg_group;
878 struct config_group *tpg_default_groups[6];
879 struct config_group tpg_lun_group;
880 struct config_group tpg_np_group;
881 struct config_group tpg_acl_group;
882 struct config_group tpg_attrib_group;
883 struct config_group tpg_param_group;
884} ____cacheline_aligned;
885
c66ac9db
NB		 886struct se_wwn {
887 struct target_fabric_configfs *wwn_tf;
888 struct config_group wwn_group;
12d23384
NB		 889 struct config_group *wwn_default_groups[2];
890 struct config_group fabric_stat_group;
c66ac9db
NB		 891} ____cacheline_aligned;
892
c66ac9db 893#endif /* TARGET_CORE_BASE_H */