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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-18 18:59:18 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-18 18:59:18 -0500
commit4ba3069fea9f0771dad3f4906b305ab50d5a1b30 (patch)
tree3f75f2c0a320a6f38538c5e63f46ef79b0b3f1d1 /include
parent507a03c1cba0e32309223d23d19a1bfc0916c140 (diff)
parent895f3022523361e9b383cf48f51feb1f7d5e7e53 (diff)
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (26 commits) target: Set additional sense length field in sense data target: Remove legacy device status check from transport_execute_tasks target: Remove __transport_execute_tasks() for each processing context target: Remove extra se_device->execute_task_lock access in fast path target: Drop se_device TCQ queue_depth usage from I/O path target: Fix possible NULL pointer with __transport_execute_tasks target: Remove TFO->check_release_cmd() fabric API caller tcm_fc: Convert ft_send_work to use target_submit_cmd target: Add target_submit_cmd() for process context fabric submission target: Make target_put_sess_cmd use target_release_cmd_kref target: Set response format in INQUIRY response target: tcm_mod_builder: small fixups Documentation/target: Fix tcm_mod_builder.py build breakage target: remove overagressive ____cacheline_aligned annoations tcm_loop: bump max_sectors target/configs: remove trailing newline from udev_path and alias iscsi-target: fix chap identifier simple_strtoul usage target: remove useless casts target: simplify target_check_cdb_and_preempt target: Move core_scsi3_check_cdb_abort_and_preempt ...
Diffstat (limited to 'include')
-rw-r--r--include/target/target_core_backend.h65
-rw-r--r--include/target/target_core_base.h169
-rw-r--r--include/target/target_core_device.h63
-rw-r--r--include/target/target_core_fabric.h (renamed from include/target/target_core_fabric_ops.h)94
-rw-r--r--include/target/target_core_fabric_lib.h28
-rw-r--r--include/target/target_core_tmr.h35
-rw-r--r--include/target/target_core_tpg.h35
-rw-r--r--include/target/target_core_transport.h287
8 files changed, 285 insertions, 491 deletions
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
new file mode 100644
index 000000000000..4866499bdeeb
--- /dev/null
+++ b/include/target/target_core_backend.h
@@ -0,0 +1,65 @@
1#ifndef TARGET_CORE_BACKEND_H
2#define TARGET_CORE_BACKEND_H
3
4#define TRANSPORT_PLUGIN_PHBA_PDEV 1
5#define TRANSPORT_PLUGIN_VHBA_PDEV 2
6#define TRANSPORT_PLUGIN_VHBA_VDEV 3
7
8struct se_subsystem_api {
9 struct list_head sub_api_list;
10
11 char name[16];
12 struct module *owner;
13
14 u8 transport_type;
15
16 unsigned int fua_write_emulated : 1;
17 unsigned int write_cache_emulated : 1;
18
19 int (*attach_hba)(struct se_hba *, u32);
20 void (*detach_hba)(struct se_hba *);
21 int (*pmode_enable_hba)(struct se_hba *, unsigned long);
22 void *(*allocate_virtdevice)(struct se_hba *, const char *);
23 struct se_device *(*create_virtdevice)(struct se_hba *,
24 struct se_subsystem_dev *, void *);
25 void (*free_device)(void *);
26 int (*transport_complete)(struct se_task *task);
27 struct se_task *(*alloc_task)(unsigned char *cdb);
28 int (*do_task)(struct se_task *);
29 int (*do_discard)(struct se_device *, sector_t, u32);
30 void (*do_sync_cache)(struct se_task *);
31 void (*free_task)(struct se_task *);
32 ssize_t (*check_configfs_dev_params)(struct se_hba *,
33 struct se_subsystem_dev *);
34 ssize_t (*set_configfs_dev_params)(struct se_hba *,
35 struct se_subsystem_dev *, const char *, ssize_t);
36 ssize_t (*show_configfs_dev_params)(struct se_hba *,
37 struct se_subsystem_dev *, char *);
38 u32 (*get_device_rev)(struct se_device *);
39 u32 (*get_device_type)(struct se_device *);
40 sector_t (*get_blocks)(struct se_device *);
41 unsigned char *(*get_sense_buffer)(struct se_task *);
42};
43
44int transport_subsystem_register(struct se_subsystem_api *);
45void transport_subsystem_release(struct se_subsystem_api *);
46
47struct se_device *transport_add_device_to_core_hba(struct se_hba *,
48 struct se_subsystem_api *, struct se_subsystem_dev *, u32,
49 void *, struct se_dev_limits *, const char *, const char *);
50
51void transport_complete_sync_cache(struct se_cmd *, int);
52void transport_complete_task(struct se_task *, int);
53
54void target_get_task_cdb(struct se_task *, unsigned char *);
55
56void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
57int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
58int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
59int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
60
61/* core helpers also used by command snooping in pscsi */
62void *transport_kmap_first_data_page(struct se_cmd *);
63void transport_kunmap_first_data_page(struct se_cmd *);
64
65#endif /* TARGET_CORE_BACKEND_H */
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 6873c7dd9145..daf532bc721a 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -10,6 +10,7 @@
10#include <net/tcp.h> 10#include <net/tcp.h>
11 11
12#define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml" 12#define TARGET_CORE_MOD_VERSION "v4.1.0-rc1-ml"
13#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
13 14
14/* Maximum Number of LUNs per Target Portal Group */ 15/* Maximum Number of LUNs per Target Portal Group */
15/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */ 16/* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */
@@ -34,6 +35,7 @@
34#define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE 35#define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE
35/* Used by transport_send_check_condition_and_sense() */ 36/* Used by transport_send_check_condition_and_sense() */
36#define SPC_SENSE_KEY_OFFSET 2 37#define SPC_SENSE_KEY_OFFSET 2
38#define SPC_ADD_SENSE_LEN_OFFSET 7
37#define SPC_ASC_KEY_OFFSET 12 39#define SPC_ASC_KEY_OFFSET 12
38#define SPC_ASCQ_KEY_OFFSET 13 40#define SPC_ASCQ_KEY_OFFSET 13
39#define TRANSPORT_IQN_LEN 224 41#define TRANSPORT_IQN_LEN 224
@@ -53,6 +55,72 @@
53/* Used by transport_get_inquiry_vpd_device_ident() */ 55/* Used by transport_get_inquiry_vpd_device_ident() */
54#define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 56#define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254
55 57
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 */
62
63#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
64
65/*
66 * struct se_subsystem_dev->su_dev_flags
67*/
68#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001
69#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002
70#define SDF_USING_UDEV_PATH 0x00000004
71#define SDF_USING_ALIAS 0x00000008
72
73/*
74 * struct se_device->dev_flags
75 */
76#define DF_READ_ONLY 0x00000001
77#define DF_SPC2_RESERVATIONS 0x00000002
78#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004
79
80/* struct se_dev_attrib sanity values */
81/* Default max_unmap_lba_count */
82#define DA_MAX_UNMAP_LBA_COUNT 0
83/* Default max_unmap_block_desc_count */
84#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
85/* Default unmap_granularity */
86#define DA_UNMAP_GRANULARITY_DEFAULT 0
87/* Default unmap_granularity_alignment */
88#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
89/* Emulation for Direct Page Out */
90#define DA_EMULATE_DPO 0
91/* Emulation for Forced Unit Access WRITEs */
92#define DA_EMULATE_FUA_WRITE 1
93/* Emulation for Forced Unit Access READs */
94#define DA_EMULATE_FUA_READ 0
95/* Emulation for WriteCache and SYNCHRONIZE_CACHE */
96#define DA_EMULATE_WRITE_CACHE 0
97/* Emulation for UNIT ATTENTION Interlock Control */
98#define DA_EMULATE_UA_INTLLCK_CTRL 0
99/* Emulation for TASK_ABORTED status (TAS) by default */
100#define DA_EMULATE_TAS 1
101/* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
102#define DA_EMULATE_TPU 0
103/*
104 * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
105 * block/blk-lib.c:blkdev_issue_discard()
106 */
107#define DA_EMULATE_TPWS 0
108/* No Emulation for PSCSI by default */
109#define DA_EMULATE_RESERVATIONS 0
110/* No Emulation for PSCSI by default */
111#define DA_EMULATE_ALUA 0
112/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
113#define DA_ENFORCE_PR_ISIDS 1
114#define DA_STATUS_MAX_SECTORS_MIN 16
115#define DA_STATUS_MAX_SECTORS_MAX 8192
116/* By default don't report non-rotating (solid state) medium */
117#define DA_IS_NONROT 0
118/* Queue Algorithm Modifier default for restricted reordering in control mode page */
119#define DA_EMULATE_REST_REORD 0
120
121#define SE_MODE_PAGE_BUF 512
122
123
56/* struct se_hba->hba_flags */ 124/* struct se_hba->hba_flags */
57enum hba_flags_table { 125enum hba_flags_table {
58 HBA_FLAGS_INTERNAL_USE = 0x01, 126 HBA_FLAGS_INTERNAL_USE = 0x01,
@@ -71,11 +139,12 @@ enum transport_tpg_type_table {
71 TRANSPORT_TPG_TYPE_DISCOVERY = 1, 139 TRANSPORT_TPG_TYPE_DISCOVERY = 1,
72}; 140};
73 141
74/* Used for generate timer flags */ 142/* struct se_task->task_flags */
75enum se_task_flags { 143enum se_task_flags {
76 TF_ACTIVE = (1 << 0), 144 TF_ACTIVE = (1 << 0),
77 TF_SENT = (1 << 1), 145 TF_SENT = (1 << 1),
78 TF_REQUEST_STOP = (1 << 2), 146 TF_REQUEST_STOP = (1 << 2),
147 TF_HAS_SENSE = (1 << 3),
79}; 148};
80 149
81/* Special transport agnostic struct se_cmd->t_states */ 150/* Special transport agnostic struct se_cmd->t_states */
@@ -158,9 +227,38 @@ enum tcm_sense_reason_table {
158 TCM_RESERVATION_CONFLICT = 0x10, 227 TCM_RESERVATION_CONFLICT = 0x10,
159}; 228};
160 229
230enum target_sc_flags_table {
231 TARGET_SCF_BIDI_OP = 0x01,
232 TARGET_SCF_ACK_KREF = 0x02,
233};
234
235/* fabric independent task management function values */
236enum tcm_tmreq_table {
237 TMR_ABORT_TASK = 1,
238 TMR_ABORT_TASK_SET = 2,
239 TMR_CLEAR_ACA = 3,
240 TMR_CLEAR_TASK_SET = 4,
241 TMR_LUN_RESET = 5,
242 TMR_TARGET_WARM_RESET = 6,
243 TMR_TARGET_COLD_RESET = 7,
244 TMR_FABRIC_TMR = 255,
245};
246
247/* fabric independent task management response values */
248enum tcm_tmrsp_table {
249 TMR_FUNCTION_COMPLETE = 0,
250 TMR_TASK_DOES_NOT_EXIST = 1,
251 TMR_LUN_DOES_NOT_EXIST = 2,
252 TMR_TASK_STILL_ALLEGIANT = 3,
253 TMR_TASK_FAILOVER_NOT_SUPPORTED = 4,
254 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5,
255 TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
256 TMR_FUNCTION_REJECTED = 255,
257};
258
161struct se_obj { 259struct se_obj {
162 atomic_t obj_access_count; 260 atomic_t obj_access_count;
163} ____cacheline_aligned; 261};
164 262
165/* 263/*
166 * Used by TCM Core internally to signal if ALUA emulation is enabled or 264 * Used by TCM Core internally to signal if ALUA emulation is enabled or
@@ -207,7 +305,7 @@ struct t10_alua {
207 struct config_group alua_tg_pt_gps_group; 305 struct config_group alua_tg_pt_gps_group;
208 int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *); 306 int (*alua_state_check)(struct se_cmd *, unsigned char *, u8 *);
209 struct list_head tg_pt_gps_list; 307 struct list_head tg_pt_gps_list;
210} ____cacheline_aligned; 308};
211 309
212struct t10_alua_lu_gp { 310struct t10_alua_lu_gp {
213 u16 lu_gp_id; 311 u16 lu_gp_id;
@@ -218,7 +316,7 @@ struct t10_alua_lu_gp {
218 struct config_group lu_gp_group; 316 struct config_group lu_gp_group;
219 struct list_head lu_gp_node; 317 struct list_head lu_gp_node;
220 struct list_head lu_gp_mem_list; 318 struct list_head lu_gp_mem_list;
221} ____cacheline_aligned; 319};
222 320
223struct t10_alua_lu_gp_member { 321struct t10_alua_lu_gp_member {
224 bool lu_gp_assoc; 322 bool lu_gp_assoc;
@@ -227,7 +325,7 @@ struct t10_alua_lu_gp_member {
227 struct t10_alua_lu_gp *lu_gp; 325 struct t10_alua_lu_gp *lu_gp;
228 struct se_device *lu_gp_mem_dev; 326 struct se_device *lu_gp_mem_dev;
229 struct list_head lu_gp_mem_list; 327 struct list_head lu_gp_mem_list;
230} ____cacheline_aligned; 328};
231 329
232struct t10_alua_tg_pt_gp { 330struct t10_alua_tg_pt_gp {
233 u16 tg_pt_gp_id; 331 u16 tg_pt_gp_id;
@@ -250,7 +348,7 @@ struct t10_alua_tg_pt_gp {
250 struct config_group tg_pt_gp_group; 348 struct config_group tg_pt_gp_group;
251 struct list_head tg_pt_gp_list; 349 struct list_head tg_pt_gp_list;
252 struct list_head tg_pt_gp_mem_list; 350 struct list_head tg_pt_gp_mem_list;
253} ____cacheline_aligned; 351};
254 352
255struct t10_alua_tg_pt_gp_member { 353struct t10_alua_tg_pt_gp_member {
256 bool tg_pt_gp_assoc; 354 bool tg_pt_gp_assoc;
@@ -259,7 +357,7 @@ struct t10_alua_tg_pt_gp_member {
259 struct t10_alua_tg_pt_gp *tg_pt_gp; 357 struct t10_alua_tg_pt_gp *tg_pt_gp;
260 struct se_port *tg_pt; 358 struct se_port *tg_pt;
261 struct list_head tg_pt_gp_mem_list; 359 struct list_head tg_pt_gp_mem_list;
262} ____cacheline_aligned; 360};
263 361
264struct t10_vpd { 362struct t10_vpd {
265 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; 363 unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN];
@@ -269,7 +367,7 @@ struct t10_vpd {
269 u32 association; 367 u32 association;
270 u32 device_identifier_type; 368 u32 device_identifier_type;
271 struct list_head vpd_list; 369 struct list_head vpd_list;
272} ____cacheline_aligned; 370};
273 371
274struct t10_wwn { 372struct t10_wwn {
275 char vendor[8]; 373 char vendor[8];
@@ -280,7 +378,7 @@ struct t10_wwn {
280 struct se_subsystem_dev *t10_sub_dev; 378 struct se_subsystem_dev *t10_sub_dev;
281 struct config_group t10_wwn_group; 379 struct config_group t10_wwn_group;
282 struct list_head t10_vpd_list; 380 struct list_head t10_vpd_list;
283} ____cacheline_aligned; 381};
284 382
285 383
286/* 384/*
@@ -333,7 +431,7 @@ struct t10_pr_registration {
333 struct list_head pr_reg_aptpl_list; 431 struct list_head pr_reg_aptpl_list;
334 struct list_head pr_reg_atp_list; 432 struct list_head pr_reg_atp_list;
335 struct list_head pr_reg_atp_mem_list; 433 struct list_head pr_reg_atp_mem_list;
336} ____cacheline_aligned; 434};
337 435
338/* 436/*
339 * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS, 437 * This set of function pointer ops is set based upon SPC3_PERSISTENT_RESERVATIONS,
@@ -374,20 +472,20 @@ struct t10_reservation {
374 struct list_head registration_list; 472 struct list_head registration_list;
375 struct list_head aptpl_reg_list; 473 struct list_head aptpl_reg_list;
376 struct t10_reservation_ops pr_ops; 474 struct t10_reservation_ops pr_ops;
377} ____cacheline_aligned; 475};
378 476
379struct se_queue_req { 477struct se_queue_req {
380 int state; 478 int state;
381 struct se_cmd *cmd; 479 struct se_cmd *cmd;
382 struct list_head qr_list; 480 struct list_head qr_list;
383} ____cacheline_aligned; 481};
384 482
385struct se_queue_obj { 483struct se_queue_obj {
386 atomic_t queue_cnt; 484 atomic_t queue_cnt;
387 spinlock_t cmd_queue_lock; 485 spinlock_t cmd_queue_lock;
388 struct list_head qobj_list; 486 struct list_head qobj_list;
389 wait_queue_head_t thread_wq; 487 wait_queue_head_t thread_wq;
390} ____cacheline_aligned; 488};
391 489
392struct se_task { 490struct se_task {
393 unsigned long long task_lba; 491 unsigned long long task_lba;
@@ -397,16 +495,14 @@ struct se_task {
397 struct scatterlist *task_sg; 495 struct scatterlist *task_sg;
398 u32 task_sg_nents; 496 u32 task_sg_nents;
399 u16 task_flags; 497 u16 task_flags;
400 u8 task_sense;
401 u8 task_scsi_status; 498 u8 task_scsi_status;
402 int task_error_status;
403 enum dma_data_direction task_data_direction; 499 enum dma_data_direction task_data_direction;
404 atomic_t task_state_active;
405 struct list_head t_list; 500 struct list_head t_list;
406 struct list_head t_execute_list; 501 struct list_head t_execute_list;
407 struct list_head t_state_list; 502 struct list_head t_state_list;
503 bool t_state_active;
408 struct completion task_stop_comp; 504 struct completion task_stop_comp;
409} ____cacheline_aligned; 505};
410 506
411struct se_cmd { 507struct se_cmd {
412 /* SAM response code being sent to initiator */ 508 /* SAM response code being sent to initiator */
@@ -451,6 +547,7 @@ struct se_cmd {
451 struct list_head se_queue_node; 547 struct list_head se_queue_node;
452 struct list_head se_cmd_list; 548 struct list_head se_cmd_list;
453 struct completion cmd_wait_comp; 549 struct completion cmd_wait_comp;
550 struct kref cmd_kref;
454 struct target_core_fabric_ops *se_tfo; 551 struct target_core_fabric_ops *se_tfo;
455 int (*execute_task)(struct se_task *); 552 int (*execute_task)(struct se_task *);
456 void (*transport_complete_callback)(struct se_cmd *); 553 void (*transport_complete_callback)(struct se_cmd *);
@@ -492,7 +589,7 @@ struct se_cmd {
492 struct list_head t_task_list; 589 struct list_head t_task_list;
493 u32 t_task_list_num; 590 u32 t_task_list_num;
494 591
495} ____cacheline_aligned; 592};
496 593
497struct se_tmr_req { 594struct se_tmr_req {
498 /* Task Management function to be preformed */ 595 /* Task Management function to be preformed */
@@ -510,7 +607,7 @@ struct se_tmr_req {
510 struct se_device *tmr_dev; 607 struct se_device *tmr_dev;
511 struct se_lun *tmr_lun; 608 struct se_lun *tmr_lun;
512 struct list_head tmr_list; 609 struct list_head tmr_list;
513} ____cacheline_aligned; 610};
514 611
515struct se_ua { 612struct se_ua {
516 u8 ua_asc; 613 u8 ua_asc;
@@ -518,7 +615,7 @@ struct se_ua {
518 struct se_node_acl *ua_nacl; 615 struct se_node_acl *ua_nacl;
519 struct list_head ua_dev_list; 616 struct list_head ua_dev_list;
520 struct list_head ua_nacl_list; 617 struct list_head ua_nacl_list;
521} ____cacheline_aligned; 618};
522 619
523struct se_node_acl { 620struct se_node_acl {
524 char initiatorname[TRANSPORT_IQN_LEN]; 621 char initiatorname[TRANSPORT_IQN_LEN];
@@ -545,7 +642,7 @@ struct se_node_acl {
545 struct config_group *acl_default_groups[5]; 642 struct config_group *acl_default_groups[5];
546 struct list_head acl_list; 643 struct list_head acl_list;
547 struct list_head acl_sess_list; 644 struct list_head acl_sess_list;
548} ____cacheline_aligned; 645};
549 646
550struct se_session { 647struct se_session {
551 unsigned sess_tearing_down:1; 648 unsigned sess_tearing_down:1;
@@ -558,7 +655,7 @@ struct se_session {
558 struct list_head sess_cmd_list; 655 struct list_head sess_cmd_list;
559 struct list_head sess_wait_list; 656 struct list_head sess_wait_list;
560 spinlock_t sess_cmd_lock; 657 spinlock_t sess_cmd_lock;
561} ____cacheline_aligned; 658};
562 659
563struct se_device; 660struct se_device;
564struct se_transform_info; 661struct se_transform_info;
@@ -578,7 +675,7 @@ struct se_lun_acl {
578 struct list_head lacl_list; 675 struct list_head lacl_list;
579 struct config_group se_lun_group; 676 struct config_group se_lun_group;
580 struct se_ml_stat_grps ml_stat_grps; 677 struct se_ml_stat_grps ml_stat_grps;
581} ____cacheline_aligned; 678};
582 679
583struct se_dev_entry { 680struct se_dev_entry {
584 bool def_pr_registered; 681 bool def_pr_registered;
@@ -603,7 +700,7 @@ struct se_dev_entry {
603 struct se_lun *se_lun; 700 struct se_lun *se_lun;
604 struct list_head alua_port_list; 701 struct list_head alua_port_list;
605 struct list_head ua_list; 702 struct list_head ua_list;
606} ____cacheline_aligned; 703};
607 704
608struct se_dev_limits { 705struct se_dev_limits {
609 /* Max supported HW queue depth */ 706 /* Max supported HW queue depth */
@@ -612,7 +709,7 @@ struct se_dev_limits {
612 u32 queue_depth; 709 u32 queue_depth;
613 /* From include/linux/blkdev.h for the other HW/SW limits. */ 710 /* From include/linux/blkdev.h for the other HW/SW limits. */
614 struct queue_limits limits; 711 struct queue_limits limits;
615} ____cacheline_aligned; 712};
616 713
617struct se_dev_attrib { 714struct se_dev_attrib {
618 int emulate_dpo; 715 int emulate_dpo;
@@ -641,7 +738,7 @@ struct se_dev_attrib {
641 u32 unmap_granularity_alignment; 738 u32 unmap_granularity_alignment;
642 struct se_subsystem_dev *da_sub_dev; 739 struct se_subsystem_dev *da_sub_dev;
643 struct config_group da_group; 740 struct config_group da_group;
644} ____cacheline_aligned; 741};
645 742
646struct se_dev_stat_grps { 743struct se_dev_stat_grps {
647 struct config_group stat_group; 744 struct config_group stat_group;
@@ -674,7 +771,7 @@ struct se_subsystem_dev {
674 struct config_group se_dev_pr_group; 771 struct config_group se_dev_pr_group;
675 /* For target_core_stat.c groups */ 772 /* For target_core_stat.c groups */
676 struct se_dev_stat_grps dev_stat_grps; 773 struct se_dev_stat_grps dev_stat_grps;
677} ____cacheline_aligned; 774};
678 775
679struct se_device { 776struct se_device {
680 /* RELATIVE TARGET PORT IDENTIFER Counter */ 777 /* RELATIVE TARGET PORT IDENTIFER Counter */
@@ -685,7 +782,6 @@ struct se_device {
685 u32 dev_port_count; 782 u32 dev_port_count;
686 /* See transport_device_status_table */ 783 /* See transport_device_status_table */
687 u32 dev_status; 784 u32 dev_status;
688 u32 dev_tcq_window_closed;
689 /* Physical device queue depth */ 785 /* Physical device queue depth */
690 u32 queue_depth; 786 u32 queue_depth;
691 /* Used for SPC-2 reservations enforce of ISIDs */ 787 /* Used for SPC-2 reservations enforce of ISIDs */
@@ -702,7 +798,6 @@ struct se_device {
702 spinlock_t stats_lock; 798 spinlock_t stats_lock;
703 /* Active commands on this virtual SE device */ 799 /* Active commands on this virtual SE device */
704 atomic_t simple_cmds; 800 atomic_t simple_cmds;
705 atomic_t depth_left;
706 atomic_t dev_ordered_id; 801 atomic_t dev_ordered_id;
707 atomic_t execute_tasks; 802 atomic_t execute_tasks;
708 atomic_t dev_ordered_sync; 803 atomic_t dev_ordered_sync;
@@ -740,7 +835,7 @@ struct se_device {
740 struct se_subsystem_api *transport; 835 struct se_subsystem_api *transport;
741 /* Linked list for struct se_hba struct se_device list */ 836 /* Linked list for struct se_hba struct se_device list */
742 struct list_head dev_list; 837 struct list_head dev_list;
743} ____cacheline_aligned; 838};
744 839
745struct se_hba { 840struct se_hba {
746 u16 hba_tpgt; 841 u16 hba_tpgt;
@@ -759,7 +854,7 @@ struct se_hba {
759 struct config_group hba_group; 854 struct config_group hba_group;
760 struct mutex hba_access_mutex; 855 struct mutex hba_access_mutex;
761 struct se_subsystem_api *transport; 856 struct se_subsystem_api *transport;
762} ____cacheline_aligned; 857};
763 858
764struct se_port_stat_grps { 859struct se_port_stat_grps {
765 struct config_group stat_group; 860 struct config_group stat_group;
@@ -785,13 +880,13 @@ struct se_lun {
785 struct se_port *lun_sep; 880 struct se_port *lun_sep;
786 struct config_group lun_group; 881 struct config_group lun_group;
787 struct se_port_stat_grps port_stat_grps; 882 struct se_port_stat_grps port_stat_grps;
788} ____cacheline_aligned; 883};
789 884
790struct scsi_port_stats { 885struct scsi_port_stats {
791 u64 cmd_pdus; 886 u64 cmd_pdus;
792 u64 tx_data_octets; 887 u64 tx_data_octets;
793 u64 rx_data_octets; 888 u64 rx_data_octets;
794} ____cacheline_aligned; 889};
795 890
796struct se_port { 891struct se_port {
797 /* RELATIVE TARGET PORT IDENTIFER */ 892 /* RELATIVE TARGET PORT IDENTIFER */
@@ -811,12 +906,12 @@ struct se_port {
811 struct se_portal_group *sep_tpg; 906 struct se_portal_group *sep_tpg;
812 struct list_head sep_alua_list; 907 struct list_head sep_alua_list;
813 struct list_head sep_list; 908 struct list_head sep_list;
814} ____cacheline_aligned; 909};
815 910
816struct se_tpg_np { 911struct se_tpg_np {
817 struct se_portal_group *tpg_np_parent; 912 struct se_portal_group *tpg_np_parent;
818 struct config_group tpg_np_group; 913 struct config_group tpg_np_group;
819} ____cacheline_aligned; 914};
820 915
821struct se_portal_group { 916struct se_portal_group {
822 /* Type of target portal group, see transport_tpg_type_table */ 917 /* Type of target portal group, see transport_tpg_type_table */
@@ -849,13 +944,13 @@ struct se_portal_group {
849 struct config_group tpg_acl_group; 944 struct config_group tpg_acl_group;
850 struct config_group tpg_attrib_group; 945 struct config_group tpg_attrib_group;
851 struct config_group tpg_param_group; 946 struct config_group tpg_param_group;
852} ____cacheline_aligned; 947};
853 948
854struct se_wwn { 949struct se_wwn {
855 struct target_fabric_configfs *wwn_tf; 950 struct target_fabric_configfs *wwn_tf;
856 struct config_group wwn_group; 951 struct config_group wwn_group;
857 struct config_group *wwn_default_groups[2]; 952 struct config_group *wwn_default_groups[2];
858 struct config_group fabric_stat_group; 953 struct config_group fabric_stat_group;
859} ____cacheline_aligned; 954};
860 955
861#endif /* TARGET_CORE_BASE_H */ 956#endif /* TARGET_CORE_BASE_H */
diff --git a/include/target/target_core_device.h b/include/target/target_core_device.h
deleted file mode 100644
index 2be31ff8763b..000000000000
--- a/include/target/target_core_device.h
+++ /dev/null
@@ -1,63 +0,0 @@
1#ifndef TARGET_CORE_DEVICE_H
2#define TARGET_CORE_DEVICE_H
3
4extern int transport_lookup_cmd_lun(struct se_cmd *, u32);
5extern int transport_lookup_tmr_lun(struct se_cmd *, u32);
6extern struct se_dev_entry *core_get_se_deve_from_rtpi(
7 struct se_node_acl *, u16);
8extern int core_free_device_list_for_node(struct se_node_acl *,
9 struct se_portal_group *);
10extern void core_dec_lacl_count(struct se_node_acl *, struct se_cmd *);
11extern void core_update_device_list_access(u32, u32, struct se_node_acl *);
12extern int core_update_device_list_for_node(struct se_lun *, struct se_lun_acl *, u32,
13 u32, struct se_node_acl *,
14 struct se_portal_group *, int);
15extern void core_clear_lun_from_tpg(struct se_lun *, struct se_portal_group *);
16extern int core_dev_export(struct se_device *, struct se_portal_group *,
17 struct se_lun *);
18extern void core_dev_unexport(struct se_device *, struct se_portal_group *,
19 struct se_lun *);
20extern int target_report_luns(struct se_task *);
21extern void se_release_device_for_hba(struct se_device *);
22extern void se_release_vpd_for_dev(struct se_device *);
23extern void se_clear_dev_ports(struct se_device *);
24extern int se_free_virtual_device(struct se_device *, struct se_hba *);
25extern int se_dev_check_online(struct se_device *);
26extern int se_dev_check_shutdown(struct se_device *);
27extern void se_dev_set_default_attribs(struct se_device *, struct se_dev_limits *);
28extern int se_dev_set_task_timeout(struct se_device *, u32);
29extern int se_dev_set_max_unmap_lba_count(struct se_device *, u32);
30extern int se_dev_set_max_unmap_block_desc_count(struct se_device *, u32);
31extern int se_dev_set_unmap_granularity(struct se_device *, u32);
32extern int se_dev_set_unmap_granularity_alignment(struct se_device *, u32);
33extern int se_dev_set_emulate_dpo(struct se_device *, int);
34extern int se_dev_set_emulate_fua_write(struct se_device *, int);
35extern int se_dev_set_emulate_fua_read(struct se_device *, int);
36extern int se_dev_set_emulate_write_cache(struct se_device *, int);
37extern int se_dev_set_emulate_ua_intlck_ctrl(struct se_device *, int);
38extern int se_dev_set_emulate_tas(struct se_device *, int);
39extern int se_dev_set_emulate_tpu(struct se_device *, int);
40extern int se_dev_set_emulate_tpws(struct se_device *, int);
41extern int se_dev_set_enforce_pr_isids(struct se_device *, int);
42extern int se_dev_set_is_nonrot(struct se_device *, int);
43extern int se_dev_set_emulate_rest_reord(struct se_device *dev, int);
44extern int se_dev_set_queue_depth(struct se_device *, u32);
45extern int se_dev_set_max_sectors(struct se_device *, u32);
46extern int se_dev_set_optimal_sectors(struct se_device *, u32);
47extern int se_dev_set_block_size(struct se_device *, u32);
48extern struct se_lun *core_dev_add_lun(struct se_portal_group *, struct se_hba *,
49 struct se_device *, u32);
50extern int core_dev_del_lun(struct se_portal_group *, u32);
51extern struct se_lun *core_get_lun_from_tpg(struct se_portal_group *, u32);
52extern struct se_lun_acl *core_dev_init_initiator_node_lun_acl(struct se_portal_group *,
53 u32, char *, int *);
54extern int core_dev_add_initiator_node_lun_acl(struct se_portal_group *,
55 struct se_lun_acl *, u32, u32);
56extern int core_dev_del_initiator_node_lun_acl(struct se_portal_group *,
57 struct se_lun *, struct se_lun_acl *);
58extern void core_dev_free_initiator_node_lun_acl(struct se_portal_group *,
59 struct se_lun_acl *lacl);
60extern int core_dev_setup_virtual_lun0(void);
61extern void core_dev_release_virtual_lun0(void);
62
63#endif /* TARGET_CORE_DEVICE_H */
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric.h
index 0256825f923d..523e8bc104d4 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric.h
@@ -1,5 +1,5 @@
1/* Defined in target_core_configfs.h */ 1#ifndef TARGET_CORE_FABRIC_H
2struct target_fabric_configfs; 2#define TARGET_CORE_FABRIC_H
3 3
4struct target_core_fabric_ops { 4struct target_core_fabric_ops {
5 struct configfs_subsystem *tf_subsys; 5 struct configfs_subsystem *tf_subsys;
@@ -52,10 +52,6 @@ struct target_core_fabric_ops {
52 * Returning 0 will signal a descriptor has not been released. 52 * Returning 0 will signal a descriptor has not been released.
53 */ 53 */
54 int (*check_stop_free)(struct se_cmd *); 54 int (*check_stop_free)(struct se_cmd *);
55 /*
56 * Optional check for active I/O shutdown
57 */
58 int (*check_release_cmd)(struct se_cmd *);
59 void (*release_cmd)(struct se_cmd *); 55 void (*release_cmd)(struct se_cmd *);
60 /* 56 /*
61 * Called with spin_lock_bh(struct se_portal_group->session_lock held. 57 * Called with spin_lock_bh(struct se_portal_group->session_lock held.
@@ -103,3 +99,89 @@ struct target_core_fabric_ops {
103 struct config_group *, const char *); 99 struct config_group *, const char *);
104 void (*fabric_drop_nodeacl)(struct se_node_acl *); 100 void (*fabric_drop_nodeacl)(struct se_node_acl *);
105}; 101};
102
103struct se_session *transport_init_session(void);
104void __transport_register_session(struct se_portal_group *,
105 struct se_node_acl *, struct se_session *, void *);
106void transport_register_session(struct se_portal_group *,
107 struct se_node_acl *, struct se_session *, void *);
108void transport_free_session(struct se_session *);
109void transport_deregister_session_configfs(struct se_session *);
110void transport_deregister_session(struct se_session *);
111
112
113void transport_init_se_cmd(struct se_cmd *, struct target_core_fabric_ops *,
114 struct se_session *, u32, int, int, unsigned char *);
115int transport_lookup_cmd_lun(struct se_cmd *, u32);
116int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
117int target_submit_cmd(struct se_cmd *, struct se_session *, unsigned char *,
118 unsigned char *, u32, u32, int, int, int);
119int transport_handle_cdb_direct(struct se_cmd *);
120int transport_generic_handle_cdb_map(struct se_cmd *);
121int transport_generic_handle_data(struct se_cmd *);
122int transport_generic_map_mem_to_cmd(struct se_cmd *cmd,
123 struct scatterlist *, u32, struct scatterlist *, u32);
124void transport_do_task_sg_chain(struct se_cmd *);
125int transport_generic_new_cmd(struct se_cmd *);
126
127void transport_generic_process_write(struct se_cmd *);
128
129void transport_generic_free_cmd(struct se_cmd *, int);
130
131bool transport_wait_for_tasks(struct se_cmd *);
132int transport_check_aborted_status(struct se_cmd *, int);
133int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
134
135void target_get_sess_cmd(struct se_session *, struct se_cmd *, bool);
136int target_put_sess_cmd(struct se_session *, struct se_cmd *);
137void target_splice_sess_cmd_list(struct se_session *);
138void target_wait_for_sess_cmds(struct se_session *, int);
139
140int core_alua_check_nonop_delay(struct se_cmd *);
141
142struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t);
143void core_tmr_release_req(struct se_tmr_req *);
144int transport_generic_handle_tmr(struct se_cmd *);
145int transport_lookup_tmr_lun(struct se_cmd *, u32);
146
147struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *,
148 unsigned char *);
149void core_tpg_clear_object_luns(struct se_portal_group *);
150struct se_node_acl *core_tpg_add_initiator_node_acl(struct se_portal_group *,
151 struct se_node_acl *, const char *, u32);
152int core_tpg_del_initiator_node_acl(struct se_portal_group *,
153 struct se_node_acl *, int);
154int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *,
155 unsigned char *, u32, int);
156int core_tpg_register(struct target_core_fabric_ops *, struct se_wwn *,
157 struct se_portal_group *, void *, int);
158int core_tpg_deregister(struct se_portal_group *);
159
160/* SAS helpers */
161u8 sas_get_fabric_proto_ident(struct se_portal_group *);
162u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
163 struct t10_pr_registration *, int *, unsigned char *);
164u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
165 struct t10_pr_registration *, int *);
166char *sas_parse_pr_out_transport_id(struct se_portal_group *, const char *,
167 u32 *, char **);
168
169/* FC helpers */
170u8 fc_get_fabric_proto_ident(struct se_portal_group *);
171u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
172 struct t10_pr_registration *, int *, unsigned char *);
173u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
174 struct t10_pr_registration *, int *);
175char *fc_parse_pr_out_transport_id(struct se_portal_group *, const char *,
176 u32 *, char **);
177
178/* iSCSI helpers */
179u8 iscsi_get_fabric_proto_ident(struct se_portal_group *);
180u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
181 struct t10_pr_registration *, int *, unsigned char *);
182u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
183 struct t10_pr_registration *, int *);
184char *iscsi_parse_pr_out_transport_id(struct se_portal_group *, const char *,
185 u32 *, char **);
186
187#endif /* TARGET_CORE_FABRICH */
diff --git a/include/target/target_core_fabric_lib.h b/include/target/target_core_fabric_lib.h
deleted file mode 100644
index c2f8d0e3a03b..000000000000
--- a/include/target/target_core_fabric_lib.h
+++ /dev/null
@@ -1,28 +0,0 @@
1#ifndef TARGET_CORE_FABRIC_LIB_H
2#define TARGET_CORE_FABRIC_LIB_H
3
4extern u8 sas_get_fabric_proto_ident(struct se_portal_group *);
5extern u32 sas_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
6 struct t10_pr_registration *, int *, unsigned char *);
7extern u32 sas_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
8 struct t10_pr_registration *, int *);
9extern char *sas_parse_pr_out_transport_id(struct se_portal_group *,
10 const char *, u32 *, char **);
11
12extern u8 fc_get_fabric_proto_ident(struct se_portal_group *);
13extern u32 fc_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
14 struct t10_pr_registration *, int *, unsigned char *);
15extern u32 fc_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
16 struct t10_pr_registration *, int *);
17extern char *fc_parse_pr_out_transport_id(struct se_portal_group *,
18 const char *, u32 *, char **);
19
20extern u8 iscsi_get_fabric_proto_ident(struct se_portal_group *);
21extern u32 iscsi_get_pr_transport_id(struct se_portal_group *, struct se_node_acl *,
22 struct t10_pr_registration *, int *, unsigned char *);
23extern u32 iscsi_get_pr_transport_id_len(struct se_portal_group *, struct se_node_acl *,
24 struct t10_pr_registration *, int *);
25extern char *iscsi_parse_pr_out_transport_id(struct se_portal_group *,
26 const char *, u32 *, char **);
27
28#endif /* TARGET_CORE_FABRIC_LIB_H */
diff --git a/include/target/target_core_tmr.h b/include/target/target_core_tmr.h
deleted file mode 100644
index d5876e17d3fb..000000000000
--- a/include/target/target_core_tmr.h
+++ /dev/null
@@ -1,35 +0,0 @@
1#ifndef TARGET_CORE_TMR_H
2#define TARGET_CORE_TMR_H
3
4/* fabric independent task management function values */
5enum tcm_tmreq_table {
6 TMR_ABORT_TASK = 1,
7 TMR_ABORT_TASK_SET = 2,
8 TMR_CLEAR_ACA = 3,
9 TMR_CLEAR_TASK_SET = 4,
10 TMR_LUN_RESET = 5,
11 TMR_TARGET_WARM_RESET = 6,
12 TMR_TARGET_COLD_RESET = 7,
13 TMR_FABRIC_TMR = 255,
14};
15
16/* fabric independent task management response values */
17enum tcm_tmrsp_table {
18 TMR_FUNCTION_COMPLETE = 0,
19 TMR_TASK_DOES_NOT_EXIST = 1,
20 TMR_LUN_DOES_NOT_EXIST = 2,
21 TMR_TASK_STILL_ALLEGIANT = 3,
22 TMR_TASK_FAILOVER_NOT_SUPPORTED = 4,
23 TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 5,
24 TMR_FUNCTION_AUTHORIZATION_FAILED = 6,
25 TMR_FUNCTION_REJECTED = 255,
26};
27
28extern struct kmem_cache *se_tmr_req_cache;
29
30extern struct se_tmr_req *core_tmr_alloc_req(struct se_cmd *, void *, u8, gfp_t);
31extern void core_tmr_release_req(struct se_tmr_req *);
32extern int core_tmr_lun_reset(struct se_device *, struct se_tmr_req *,
33 struct list_head *, struct se_cmd *);
34
35#endif /* TARGET_CORE_TMR_H */
diff --git a/include/target/target_core_tpg.h b/include/target/target_core_tpg.h
deleted file mode 100644
index 77e18729c4c1..000000000000
--- a/include/target/target_core_tpg.h
+++ /dev/null
@@ -1,35 +0,0 @@
1#ifndef TARGET_CORE_TPG_H
2#define TARGET_CORE_TPG_H
3
4extern struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
5 const char *);
6extern struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
7 unsigned char *);
8extern void core_tpg_add_node_to_devs(struct se_node_acl *,
9 struct se_portal_group *);
10extern struct se_node_acl *core_tpg_check_initiator_node_acl(
11 struct se_portal_group *,
12 unsigned char *);
13extern void core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
14extern void core_tpg_wait_for_mib_ref(struct se_node_acl *);
15extern void core_tpg_clear_object_luns(struct se_portal_group *);
16extern struct se_node_acl *core_tpg_add_initiator_node_acl(
17 struct se_portal_group *,
18 struct se_node_acl *,
19 const char *, u32);
20extern int core_tpg_del_initiator_node_acl(struct se_portal_group *,
21 struct se_node_acl *, int);
22extern int core_tpg_set_initiator_node_queue_depth(struct se_portal_group *,
23 unsigned char *, u32, int);
24extern int core_tpg_register(struct target_core_fabric_ops *,
25 struct se_wwn *,
26 struct se_portal_group *, void *,
27 int);
28extern int core_tpg_deregister(struct se_portal_group *);
29extern struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32);
30extern int core_tpg_post_addlun(struct se_portal_group *, struct se_lun *, u32,
31 void *);
32extern struct se_lun *core_tpg_pre_dellun(struct se_portal_group *, u32, int *);
33extern int core_tpg_post_dellun(struct se_portal_group *, struct se_lun *);
34
35#endif /* TARGET_CORE_TPG_H */
diff --git a/include/target/target_core_transport.h b/include/target/target_core_transport.h
deleted file mode 100644
index dac4f2d859fd..000000000000
--- a/include/target/target_core_transport.h
+++ /dev/null
@@ -1,287 +0,0 @@
1#ifndef TARGET_CORE_TRANSPORT_H
2#define TARGET_CORE_TRANSPORT_H
3
4#define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION
5
6/* Attempts before moving from SHORT to LONG */
7#define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3
8#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */
9#define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */
10
11#define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */
12
13#define TRANSPORT_PLUGIN_PHBA_PDEV 1
14#define TRANSPORT_PLUGIN_VHBA_PDEV 2
15#define TRANSPORT_PLUGIN_VHBA_VDEV 3
16
17/*
18 * struct se_subsystem_dev->su_dev_flags
19*/
20#define SDF_FIRMWARE_VPD_UNIT_SERIAL 0x00000001
21#define SDF_EMULATED_VPD_UNIT_SERIAL 0x00000002
22#define SDF_USING_UDEV_PATH 0x00000004
23#define SDF_USING_ALIAS 0x00000008
24
25/*
26 * struct se_device->dev_flags
27 */
28#define DF_READ_ONLY 0x00000001
29#define DF_SPC2_RESERVATIONS 0x00000002
30#define DF_SPC2_RESERVATIONS_WITH_ISID 0x00000004
31
32/* struct se_dev_attrib sanity values */
33/* Default max_unmap_lba_count */
34#define DA_MAX_UNMAP_LBA_COUNT 0
35/* Default max_unmap_block_desc_count */
36#define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0
37/* Default unmap_granularity */
38#define DA_UNMAP_GRANULARITY_DEFAULT 0
39/* Default unmap_granularity_alignment */
40#define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0
41/* Emulation for Direct Page Out */
42#define DA_EMULATE_DPO 0
43/* Emulation for Forced Unit Access WRITEs */
44#define DA_EMULATE_FUA_WRITE 1
45/* Emulation for Forced Unit Access READs */
46#define DA_EMULATE_FUA_READ 0
47/* Emulation for WriteCache and SYNCHRONIZE_CACHE */
48#define DA_EMULATE_WRITE_CACHE 0
49/* Emulation for UNIT ATTENTION Interlock Control */
50#define DA_EMULATE_UA_INTLLCK_CTRL 0
51/* Emulation for TASK_ABORTED status (TAS) by default */
52#define DA_EMULATE_TAS 1
53/* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */
54#define DA_EMULATE_TPU 0
55/*
56 * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using
57 * block/blk-lib.c:blkdev_issue_discard()
58 */
59#define DA_EMULATE_TPWS 0
60/* No Emulation for PSCSI by default */
61#define DA_EMULATE_RESERVATIONS 0
62/* No Emulation for PSCSI by default */
63#define DA_EMULATE_ALUA 0
64/* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */
65#define DA_ENFORCE_PR_ISIDS 1
66#define DA_STATUS_MAX_SECTORS_MIN 16
67#define DA_STATUS_MAX_SECTORS_MAX 8192
68/* By default don't report non-rotating (solid state) medium */
69#define DA_IS_NONROT 0
70/* Queue Algorithm Modifier default for restricted reordering in control mode page */
71#define DA_EMULATE_REST_REORD 0
72
73#define SE_MODE_PAGE_BUF 512
74
75#define MOD_MAX_SECTORS(ms, bs) (ms % (PAGE_SIZE / bs))
76
77struct se_subsystem_api;
78
79extern int init_se_kmem_caches(void);
80extern void release_se_kmem_caches(void);
81extern u32 scsi_get_new_index(scsi_index_t);
82extern void transport_init_queue_obj(struct se_queue_obj *);
83extern void transport_subsystem_check_init(void);
84extern int transport_subsystem_register(struct se_subsystem_api *);
85extern void transport_subsystem_release(struct se_subsystem_api *);
86extern void transport_load_plugins(void);
87extern struct se_session *transport_init_session(void);
88extern void __transport_register_session(struct se_portal_group *,
89 struct se_node_acl *,
90 struct se_session *, void *);
91extern void transport_register_session(struct se_portal_group *,
92 struct se_node_acl *,
93 struct se_session *, void *);
94extern void transport_free_session(struct se_session *);
95extern void transport_deregister_session_configfs(struct se_session *);
96extern void transport_deregister_session(struct se_session *);
97extern void transport_cmd_finish_abort(struct se_cmd *, int);
98extern void transport_complete_sync_cache(struct se_cmd *, int);
99extern void transport_complete_task(struct se_task *, int);
100extern void transport_add_task_to_execute_queue(struct se_task *,
101 struct se_task *,
102 struct se_device *);
103extern void transport_remove_task_from_execute_queue(struct se_task *,
104 struct se_device *);
105extern void __transport_remove_task_from_execute_queue(struct se_task *,
106 struct se_device *);
107unsigned char *transport_dump_cmd_direction(struct se_cmd *);
108extern void transport_dump_dev_state(struct se_device *, char *, int *);
109extern void transport_dump_dev_info(struct se_device *, struct se_lun *,
110 unsigned long long, char *, int *);
111extern void transport_dump_vpd_proto_id(struct t10_vpd *,
112 unsigned char *, int);
113extern void transport_set_vpd_proto_id(struct t10_vpd *, unsigned char *);
114extern int transport_dump_vpd_assoc(struct t10_vpd *,
115 unsigned char *, int);
116extern int transport_set_vpd_assoc(struct t10_vpd *, unsigned char *);
117extern int transport_dump_vpd_ident_type(struct t10_vpd *,
118 unsigned char *, int);
119extern int transport_set_vpd_ident_type(struct t10_vpd *, unsigned char *);
120extern int transport_dump_vpd_ident(struct t10_vpd *,
121 unsigned char *, int);
122extern int transport_set_vpd_ident(struct t10_vpd *, unsigned char *);
123extern struct se_device *transport_add_device_to_core_hba(struct se_hba *,
124 struct se_subsystem_api *,
125 struct se_subsystem_dev *, u32,
126 void *, struct se_dev_limits *,
127 const char *, const char *);
128extern void transport_init_se_cmd(struct se_cmd *,
129 struct target_core_fabric_ops *,
130 struct se_session *, u32, int, int,
131 unsigned char *);
132void *transport_kmap_first_data_page(struct se_cmd *cmd);
133void transport_kunmap_first_data_page(struct se_cmd *cmd);
134extern int transport_generic_allocate_tasks(struct se_cmd *, unsigned char *);
135extern int transport_handle_cdb_direct(struct se_cmd *);
136extern int transport_generic_handle_cdb_map(struct se_cmd *);
137extern int transport_generic_handle_data(struct se_cmd *);
138extern int transport_generic_handle_tmr(struct se_cmd *);
139extern bool target_stop_task(struct se_task *task, unsigned long *flags);
140extern int transport_generic_map_mem_to_cmd(struct se_cmd *cmd, struct scatterlist *, u32,
141 struct scatterlist *, u32);
142extern int transport_clear_lun_from_sessions(struct se_lun *);
143extern bool transport_wait_for_tasks(struct se_cmd *);
144extern int transport_check_aborted_status(struct se_cmd *, int);
145extern int transport_send_check_condition_and_sense(struct se_cmd *, u8, int);
146extern void transport_send_task_abort(struct se_cmd *);
147extern void transport_release_cmd(struct se_cmd *);
148extern void transport_generic_free_cmd(struct se_cmd *, int);
149extern void target_get_sess_cmd(struct se_session *, struct se_cmd *);
150extern int target_put_sess_cmd(struct se_session *, struct se_cmd *);
151extern void target_splice_sess_cmd_list(struct se_session *);
152extern void target_wait_for_sess_cmds(struct se_session *, int);
153extern void transport_generic_wait_for_cmds(struct se_cmd *, int);
154extern void transport_do_task_sg_chain(struct se_cmd *);
155extern void transport_generic_process_write(struct se_cmd *);
156extern int transport_generic_new_cmd(struct se_cmd *);
157extern int transport_generic_do_tmr(struct se_cmd *);
158/* From target_core_alua.c */
159extern int core_alua_check_nonop_delay(struct se_cmd *);
160/* From target_core_cdb.c */
161extern int transport_emulate_control_cdb(struct se_task *);
162extern void target_get_task_cdb(struct se_task *task, unsigned char *cdb);
163
164/*
165 * Each se_transport_task_t can have N number of possible struct se_task's
166 * for the storage transport(s) to possibly execute.
167 * Used primarily for splitting up CDBs that exceed the physical storage
168 * HBA's maximum sector count per task.
169 */
170struct se_mem {
171 struct page *se_page;
172 u32 se_len;
173 u32 se_off;
174 struct list_head se_list;
175} ____cacheline_aligned;
176
177/*
178 * Each type of disk transport supported MUST have a template defined
179 * within its .h file.
180 */
181struct se_subsystem_api {
182 /*
183 * The Name. :-)
184 */
185 char name[16];
186 /*
187 * Transport Type.
188 */
189 u8 transport_type;
190
191 unsigned int fua_write_emulated : 1;
192 unsigned int write_cache_emulated : 1;
193
194 /*
195 * struct module for struct se_hba references
196 */
197 struct module *owner;
198 /*
199 * Used for global se_subsystem_api list_head
200 */
201 struct list_head sub_api_list;
202 /*
203 * attach_hba():
204 */
205 int (*attach_hba)(struct se_hba *, u32);
206 /*
207 * detach_hba():
208 */
209 void (*detach_hba)(struct se_hba *);
210 /*
211 * pmode_hba(): Used for TCM/pSCSI subsystem plugin HBA ->
212 * Linux/SCSI struct Scsi_Host passthrough
213 */
214 int (*pmode_enable_hba)(struct se_hba *, unsigned long);
215 /*
216 * allocate_virtdevice():
217 */
218 void *(*allocate_virtdevice)(struct se_hba *, const char *);
219 /*
220 * create_virtdevice(): Only for Virtual HBAs
221 */
222 struct se_device *(*create_virtdevice)(struct se_hba *,
223 struct se_subsystem_dev *, void *);
224 /*
225 * free_device():
226 */
227 void (*free_device)(void *);
228
229 /*
230 * transport_complete():
231 *
232 * Use transport_generic_complete() for majority of DAS transport
233 * drivers. Provided out of convenience.
234 */
235 int (*transport_complete)(struct se_task *task);
236 struct se_task *(*alloc_task)(unsigned char *cdb);
237 /*
238 * do_task():
239 */
240 int (*do_task)(struct se_task *);
241 /*
242 * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate
243 * UNMAP and WRITE_SAME_* w/ UNMAP=1 <-> Linux/Block Discard
244 */
245 int (*do_discard)(struct se_device *, sector_t, u32);
246 /*
247 * Used by virtual subsystem plugins IBLOCK and FILEIO to emulate
248 * SYNCHRONIZE_CACHE_* <-> Linux/Block blkdev_issue_flush()
249 */
250 void (*do_sync_cache)(struct se_task *);
251 /*
252 * free_task():
253 */
254 void (*free_task)(struct se_task *);
255 /*
256 * check_configfs_dev_params():
257 */
258 ssize_t (*check_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *);
259 /*
260 * set_configfs_dev_params():
261 */
262 ssize_t (*set_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *,
263 const char *, ssize_t);
264 /*
265 * show_configfs_dev_params():
266 */
267 ssize_t (*show_configfs_dev_params)(struct se_hba *, struct se_subsystem_dev *,
268 char *);
269 /*
270 * get_device_rev():
271 */
272 u32 (*get_device_rev)(struct se_device *);
273 /*
274 * get_device_type():
275 */
276 u32 (*get_device_type)(struct se_device *);
277 /*
278 * Get the sector_t from a subsystem backstore..
279 */
280 sector_t (*get_blocks)(struct se_device *);
281 /*
282 * get_sense_buffer():
283 */
284 unsigned char *(*get_sense_buffer)(struct se_task *);
285} ____cacheline_aligned;
286
287#endif /* TARGET_CORE_TRANSPORT_H */
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