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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
c66ac9db NB |
2 | #ifndef TARGET_CORE_BASE_H |
3 | #define TARGET_CORE_BASE_H | |
4 | ||
8dcf07be BVA |
5 | #include <linux/configfs.h> /* struct config_group */ |
6 | #include <linux/dma-direction.h> /* enum dma_data_direction */ | |
10e9cbb6 | 7 | #include <linux/sbitmap.h> |
aa829c76 | 8 | #include <linux/percpu-refcount.h> |
8dcf07be | 9 | #include <linux/semaphore.h> /* struct semaphore */ |
b69339ba | 10 | #include <linux/completion.h> |
c66ac9db | 11 | |
2ec1e9e2 | 12 | #define TARGET_CORE_VERSION "v5.0" |
c66ac9db | 13 | |
c66ac9db | 14 | /* |
8d3a8248 BVA |
15 | * Maximum size of a CDB that can be stored in se_cmd without allocating |
16 | * memory dynamically for the CDB. | |
c66ac9db NB |
17 | */ |
18 | #define TCM_MAX_COMMAND_SIZE 32 | |
19 | /* | |
20 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
21 | * defined 96, but the real limit is 252 (or 260 including the header) | |
22 | */ | |
ba929992 | 23 | #define TRANSPORT_SENSE_BUFFER 96 |
c66ac9db NB |
24 | /* Used by transport_send_check_condition_and_sense() */ |
25 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 26 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
27 | #define SPC_DESC_TYPE_OFFSET 8 |
28 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
29 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
30 | #define SPC_ASC_KEY_OFFSET 12 |
31 | #define SPC_ASCQ_KEY_OFFSET 13 | |
32 | #define TRANSPORT_IQN_LEN 224 | |
33 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
34 | #define LU_GROUP_NAME_BUF 256 | |
35 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
36 | #define TG_PT_GROUP_NAME_BUF 256 | |
37 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 38 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
39 | /* Used by transport_generic_cmd_sequencer() */ |
40 | #define READ_BLOCK_LEN 6 | |
41 | #define READ_CAP_LEN 8 | |
42 | #define READ_POSITION_LEN 20 | |
43 | #define INQUIRY_LEN 36 | |
44 | /* Used by transport_get_inquiry_vpd_serial() */ | |
45 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
46 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
47 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
48 | ||
b2da4abf DD |
49 | #define INQUIRY_VENDOR_LEN 8 |
50 | #define INQUIRY_MODEL_LEN 16 | |
51 | #define INQUIRY_REVISION_LEN 4 | |
52 | ||
c4795fb2 CH |
53 | /* Attempts before moving from SHORT to LONG */ |
54 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
55 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
56 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
57 | ||
58 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
59 | ||
c4795fb2 CH |
60 | /* struct se_dev_attrib sanity values */ |
61 | /* Default max_unmap_lba_count */ | |
62 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
63 | /* Default max_unmap_block_desc_count */ | |
64 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
65 | /* Default unmap_granularity */ | |
66 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
67 | /* Default unmap_granularity_alignment */ | |
68 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
e6f41633 JP |
69 | /* Default unmap_zeroes_data */ |
70 | #define DA_UNMAP_ZEROES_DATA_DEFAULT 0 | |
773cbaf7 NB |
71 | /* Default max_write_same_len, disabled by default */ |
72 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
73 | /* Use a model alias based on the configfs backend device name */ |
74 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
75 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
76 | #define DA_EMULATE_WRITE_CACHE 0 | |
c4795fb2 CH |
77 | /* Emulation for TASK_ABORTED status (TAS) by default */ |
78 | #define DA_EMULATE_TAS 1 | |
79 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
80 | #define DA_EMULATE_TPU 0 | |
81 | /* | |
82 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
83 | * block/blk-lib.c:blkdev_issue_discard() | |
84 | */ | |
85 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
86 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
87 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
88 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
89 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 90 | /* No Emulation for PSCSI by default */ |
c4795fb2 | 91 | #define DA_EMULATE_ALUA 0 |
b49d6f78 DD |
92 | /* Emulate SCSI2 RESERVE/RELEASE and Persistent Reservations by default */ |
93 | #define DA_EMULATE_PR 1 | |
bd217b8c DB |
94 | /* Emulation for REPORT SUPPORTED OPERATION CODES */ |
95 | #define DA_EMULATE_RSOC 1 | |
c4795fb2 CH |
96 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ |
97 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
98 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
99 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
100 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
101 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
102 | /* By default don't report non-rotating (solid state) medium */ | |
103 | #define DA_IS_NONROT 0 | |
104 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
105 | #define DA_EMULATE_REST_REORD 0 | |
106 | ||
f82f320e | 107 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 108 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 109 | #define SE_SENSE_BUF 96 |
c4795fb2 | 110 | |
194605d4 MC |
111 | enum target_submit_type { |
112 | /* Use the fabric driver's default submission type */ | |
113 | TARGET_FABRIC_DEFAULT_SUBMIT, | |
114 | /* Submit from the calling context */ | |
115 | TARGET_DIRECT_SUBMIT, | |
116 | /* Defer submission to the LIO workqueue */ | |
117 | TARGET_QUEUE_SUBMIT, | |
118 | }; | |
119 | ||
c66ac9db NB |
120 | /* struct se_hba->hba_flags */ |
121 | enum hba_flags_table { | |
122 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
123 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
124 | }; | |
125 | ||
c66ac9db NB |
126 | /* Special transport agnostic struct se_cmd->t_states */ |
127 | enum transport_state_table { | |
128 | TRANSPORT_NO_STATE = 0, | |
129 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 130 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 131 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 132 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 133 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 134 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 135 | TRANSPORT_COMPLETE_QF_OK = 19, |
fa7e25cf | 136 | TRANSPORT_COMPLETE_QF_ERR = 20, |
c66ac9db NB |
137 | }; |
138 | ||
139 | /* Used for struct se_cmd->se_cmd_flags */ | |
140 | enum se_cmd_flags_table { | |
802ec4f6 MC |
141 | SCF_SUPPORTED_SAM_OPCODE = (1 << 0), |
142 | SCF_TRANSPORT_TASK_SENSE = (1 << 1), | |
143 | SCF_EMULATED_TASK_SENSE = (1 << 2), | |
144 | SCF_SCSI_DATA_CDB = (1 << 3), | |
145 | SCF_SCSI_TMR_CDB = (1 << 4), | |
146 | SCF_FUA = (1 << 5), | |
147 | SCF_SE_LUN_CMD = (1 << 6), | |
148 | SCF_BIDI = (1 << 7), | |
149 | SCF_SENT_CHECK_CONDITION = (1 << 8), | |
150 | SCF_OVERFLOW_BIT = (1 << 9), | |
151 | SCF_UNDERFLOW_BIT = (1 << 10), | |
152 | SCF_ALUA_NON_OPTIMIZED = (1 << 11), | |
153 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = (1 << 12), | |
154 | SCF_COMPARE_AND_WRITE = (1 << 13), | |
155 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = (1 << 14), | |
156 | SCF_ACK_KREF = (1 << 15), | |
157 | SCF_USE_CPUID = (1 << 16), | |
158 | SCF_TASK_ATTR_SET = (1 << 17), | |
159 | SCF_TREAT_READ_AS_NORMAL = (1 << 18), | |
c66ac9db NB |
160 | }; |
161 | ||
c66ac9db | 162 | /* |
de103c93 | 163 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
164 | * to signal which ASC/ASCQ sense payload should be built. |
165 | */ | |
9efeccac | 166 | typedef unsigned __bitwise sense_reason_t; |
de103c93 | 167 | |
c66ac9db | 168 | enum tcm_sense_reason_table { |
de103c93 | 169 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 170 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
171 | TCM_NON_EXISTENT_LUN = R(0x01), |
172 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
173 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
174 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
175 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
176 | TCM_SNACK_REJECTED = R(0x06), | |
177 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
178 | TCM_INVALID_CDB_FIELD = R(0x08), | |
179 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
180 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
181 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
182 | TCM_WRITE_PROTECTED = R(0x0c), | |
183 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
184 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
40fd8845 | 185 | |
de103c93 CH |
186 | TCM_RESERVATION_CONFLICT = R(0x10), |
187 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
188 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 189 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 190 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
191 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
192 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
193 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
449a1378 | 194 | TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18), |
e8642120 DD |
195 | TCM_TOO_MANY_TARGET_DESCS = R(0x19), |
196 | TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE = R(0x1a), | |
197 | TCM_TOO_MANY_SEGMENT_DESCS = R(0x1b), | |
198 | TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE = R(0x1c), | |
79dd6f2f | 199 | TCM_INSUFFICIENT_REGISTRATION_RESOURCES = R(0x1d), |
d120c708 | 200 | TCM_LUN_BUSY = R(0x1e), |
ead0ffc9 | 201 | TCM_INVALID_FIELD_IN_COMMAND_IU = R(0x1f), |
40fd8845 DD |
202 | TCM_ALUA_TG_PT_STANDBY = R(0x20), |
203 | TCM_ALUA_TG_PT_UNAVAILABLE = R(0x21), | |
204 | TCM_ALUA_STATE_TRANSITION = R(0x22), | |
205 | TCM_ALUA_OFFLINE = R(0x23), | |
de103c93 | 206 | #undef R |
c66ac9db NB |
207 | }; |
208 | ||
a6360785 NB |
209 | enum target_sc_flags_table { |
210 | TARGET_SCF_BIDI_OP = 0x01, | |
211 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 212 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
5465e7d3 | 213 | TARGET_SCF_USE_CPUID = 0x08, |
a6360785 NB |
214 | }; |
215 | ||
c4795fb2 CH |
216 | /* fabric independent task management function values */ |
217 | enum tcm_tmreq_table { | |
218 | TMR_ABORT_TASK = 1, | |
219 | TMR_ABORT_TASK_SET = 2, | |
220 | TMR_CLEAR_ACA = 3, | |
221 | TMR_CLEAR_TASK_SET = 4, | |
222 | TMR_LUN_RESET = 5, | |
223 | TMR_TARGET_WARM_RESET = 6, | |
224 | TMR_TARGET_COLD_RESET = 7, | |
2e45a1a9 | 225 | TMR_LUN_RESET_PRO = 0x80, |
e381fe9e | 226 | TMR_UNKNOWN = 0xff, |
c4795fb2 CH |
227 | }; |
228 | ||
229 | /* fabric independent task management response values */ | |
230 | enum tcm_tmrsp_table { | |
a314d700 | 231 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
232 | TMR_FUNCTION_COMPLETE = 1, |
233 | TMR_TASK_DOES_NOT_EXIST = 2, | |
234 | TMR_LUN_DOES_NOT_EXIST = 3, | |
235 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
236 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
237 | }; |
238 | ||
e89d15ee NB |
239 | /* |
240 | * Used for target SCSI statistics | |
241 | */ | |
242 | typedef enum { | |
243 | SCSI_INST_INDEX, | |
e89d15ee NB |
244 | SCSI_AUTH_INTR_INDEX, |
245 | SCSI_INDEX_TYPE_MAX | |
246 | } scsi_index_t; | |
247 | ||
c66ac9db NB |
248 | struct se_cmd; |
249 | ||
c66094bf HR |
250 | struct t10_alua_lba_map_member { |
251 | struct list_head lba_map_mem_list; | |
252 | int lba_map_mem_alua_state; | |
253 | int lba_map_mem_alua_pg_id; | |
254 | }; | |
255 | ||
256 | struct t10_alua_lba_map { | |
257 | u64 lba_map_first_lba; | |
258 | u64 lba_map_last_lba; | |
259 | struct list_head lba_map_list; | |
260 | struct list_head lba_map_mem_list; | |
261 | }; | |
262 | ||
c66ac9db | 263 | struct t10_alua { |
c66ac9db NB |
264 | /* ALUA Target Port Group ID */ |
265 | u16 alua_tg_pt_gps_counter; | |
266 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
267 | /* Referrals support */ |
268 | spinlock_t lba_map_lock; | |
269 | u32 lba_map_segment_size; | |
270 | u32 lba_map_segment_multiplier; | |
271 | struct list_head lba_map_list; | |
c66ac9db | 272 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 273 | struct se_device *t10_dev; |
c66ac9db NB |
274 | /* Used for default ALUA Target Port Group */ |
275 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
276 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
277 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 278 | struct list_head tg_pt_gps_list; |
e0a53e70 | 279 | }; |
c66ac9db NB |
280 | |
281 | struct t10_alua_lu_gp { | |
282 | u16 lu_gp_id; | |
283 | int lu_gp_valid_id; | |
284 | u32 lu_gp_members; | |
c66ac9db NB |
285 | atomic_t lu_gp_ref_cnt; |
286 | spinlock_t lu_gp_lock; | |
287 | struct config_group lu_gp_group; | |
e3d6f909 | 288 | struct list_head lu_gp_node; |
c66ac9db | 289 | struct list_head lu_gp_mem_list; |
e0a53e70 | 290 | }; |
c66ac9db NB |
291 | |
292 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 293 | bool lu_gp_assoc; |
c66ac9db NB |
294 | atomic_t lu_gp_mem_ref_cnt; |
295 | spinlock_t lu_gp_mem_lock; | |
296 | struct t10_alua_lu_gp *lu_gp; | |
297 | struct se_device *lu_gp_mem_dev; | |
298 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 299 | }; |
c66ac9db NB |
300 | |
301 | struct t10_alua_tg_pt_gp { | |
302 | u16 tg_pt_gp_id; | |
303 | int tg_pt_gp_valid_id; | |
c0dc941e | 304 | int tg_pt_gp_alua_supported_states; |
c66ac9db NB |
305 | int tg_pt_gp_alua_access_status; |
306 | int tg_pt_gp_alua_access_type; | |
307 | int tg_pt_gp_nonop_delay_msecs; | |
308 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 309 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
310 | int tg_pt_gp_pref; |
311 | int tg_pt_gp_write_metadata; | |
c66ac9db | 312 | u32 tg_pt_gp_members; |
d19c4643 | 313 | int tg_pt_gp_alua_access_state; |
c66ac9db NB |
314 | atomic_t tg_pt_gp_ref_cnt; |
315 | spinlock_t tg_pt_gp_lock; | |
d19c4643 | 316 | struct mutex tg_pt_gp_transition_mutex; |
0fd97ccf | 317 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
318 | struct config_group tg_pt_gp_group; |
319 | struct list_head tg_pt_gp_list; | |
adf653f9 CH |
320 | struct list_head tg_pt_gp_lun_list; |
321 | struct se_lun *tg_pt_gp_alua_lun; | |
9c6e164c | 322 | struct se_node_acl *tg_pt_gp_alua_nacl; |
e0a53e70 | 323 | }; |
c66ac9db | 324 | |
c66ac9db NB |
325 | struct t10_vpd { |
326 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
327 | int protocol_identifier_set; | |
328 | u32 protocol_identifier; | |
329 | u32 device_identifier_code_set; | |
330 | u32 association; | |
331 | u32 device_identifier_type; | |
332 | struct list_head vpd_list; | |
e0a53e70 | 333 | }; |
c66ac9db NB |
334 | |
335 | struct t10_wwn { | |
b2da4abf DD |
336 | /* |
337 | * SCSI left aligned strings may not be null terminated. +1 to ensure a | |
338 | * null terminator is always present. | |
339 | */ | |
340 | char vendor[INQUIRY_VENDOR_LEN + 1]; | |
341 | char model[INQUIRY_MODEL_LEN + 1]; | |
342 | char revision[INQUIRY_REVISION_LEN + 1]; | |
e3d6f909 | 343 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; |
2469f1e0 | 344 | u32 company_id; |
c66ac9db | 345 | spinlock_t t10_vpd_lock; |
0fd97ccf | 346 | struct se_device *t10_dev; |
c66ac9db NB |
347 | struct config_group t10_wwn_group; |
348 | struct list_head t10_vpd_list; | |
e0a53e70 | 349 | }; |
c66ac9db | 350 | |
c66ac9db NB |
351 | struct t10_pr_registration { |
352 | /* Used for fabrics that contain WWN+ISID */ | |
353 | #define PR_REG_ISID_LEN 16 | |
354 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
355 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
356 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
357 | /* Used during APTPL metadata reading */ | |
358 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
359 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
360 | /* Used during APTPL metadata reading */ | |
361 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
362 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
363 | u16 pr_aptpl_rpti; |
364 | u16 pr_reg_tpgt; | |
365 | /* Reservation effects all target ports */ | |
366 | int pr_reg_all_tg_pt; | |
367 | /* Activate Persistence across Target Power Loss */ | |
368 | int pr_reg_aptpl; | |
369 | int pr_res_holder; | |
370 | int pr_res_type; | |
371 | int pr_res_scope; | |
372 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 373 | bool isid_present_at_reg; |
f2d30680 HR |
374 | u64 pr_res_mapped_lun; |
375 | u64 pr_aptpl_target_lun; | |
79dc9c9e | 376 | u16 tg_pt_sep_rtpi; |
c66ac9db NB |
377 | u32 pr_res_generation; |
378 | u64 pr_reg_bin_isid; | |
379 | u64 pr_res_key; | |
380 | atomic_t pr_res_holders; | |
381 | struct se_node_acl *pr_reg_nacl; | |
79dc9c9e | 382 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
c66ac9db | 383 | struct se_dev_entry *pr_reg_deve; |
c66ac9db NB |
384 | struct list_head pr_reg_list; |
385 | struct list_head pr_reg_abort_list; | |
386 | struct list_head pr_reg_aptpl_list; | |
387 | struct list_head pr_reg_atp_list; | |
388 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 389 | }; |
c66ac9db | 390 | |
e3d6f909 | 391 | struct t10_reservation { |
c66ac9db NB |
392 | /* Reservation effects all target ports */ |
393 | int pr_all_tg_pt; | |
394 | /* Activate Persistence across Target Power Loss enabled | |
395 | * for SCSI device */ | |
396 | int pr_aptpl_active; | |
f161d4b4 | 397 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 398 | u32 pr_generation; |
c66ac9db NB |
399 | spinlock_t registration_lock; |
400 | spinlock_t aptpl_reg_lock; | |
401 | /* | |
402 | * This will always be set by one individual I_T Nexus. | |
403 | * However with all_tg_pt=1, other I_T Nexus from the | |
404 | * same initiator can access PR reg/res info on a different | |
405 | * target port. | |
406 | * | |
407 | * There is also the 'All Registrants' case, where there is | |
408 | * a single *pr_res_holder of the reservation, but all | |
409 | * registrations are considered reservation holders. | |
410 | */ | |
411 | struct se_node_acl *pr_res_holder; | |
412 | struct list_head registration_list; | |
413 | struct list_head aptpl_reg_list; | |
e0a53e70 | 414 | }; |
c66ac9db | 415 | |
c8e31f26 AG |
416 | struct se_tmr_req { |
417 | /* Task Management function to be performed */ | |
418 | u8 function; | |
419 | /* Task Management response to send */ | |
420 | u8 response; | |
421 | int call_transport; | |
422 | /* Reference to ITT that Task Mgmt should be performed */ | |
649ee054 | 423 | u64 ref_task_tag; |
c8e31f26 AG |
424 | void *fabric_tmr_ptr; |
425 | struct se_cmd *task_cmd; | |
c8e31f26 | 426 | struct se_device *tmr_dev; |
c8e31f26 AG |
427 | struct list_head tmr_list; |
428 | }; | |
429 | ||
ce65e5b9 | 430 | enum target_prot_op { |
e70beee7 NB |
431 | TARGET_PROT_NORMAL = 0, |
432 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
433 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
434 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
435 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
436 | TARGET_PROT_DIN_PASS = (1 << 4), | |
437 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
438 | }; |
439 | ||
e70beee7 NB |
440 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
441 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
442 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
443 | ||
ce65e5b9 NB |
444 | enum target_prot_type { |
445 | TARGET_DIF_TYPE0_PROT, | |
446 | TARGET_DIF_TYPE1_PROT, | |
447 | TARGET_DIF_TYPE2_PROT, | |
448 | TARGET_DIF_TYPE3_PROT, | |
449 | }; | |
450 | ||
1bf630fd DD |
451 | /* Emulation for UNIT ATTENTION Interlock Control */ |
452 | enum target_ua_intlck_ctrl { | |
453 | TARGET_UA_INTLCK_CTRL_CLEAR = 0, | |
454 | TARGET_UA_INTLCK_CTRL_NO_CLEAR = 1, | |
455 | TARGET_UA_INTLCK_CTRL_ESTABLISH_UA = 2, | |
456 | }; | |
457 | ||
19f9361a SG |
458 | enum target_core_dif_check { |
459 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
460 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
461 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
462 | }; | |
463 | ||
68d81f40 CH |
464 | /* for sam_task_attr */ |
465 | #define TCM_SIMPLE_TAG 0x20 | |
466 | #define TCM_HEAD_TAG 0x21 | |
467 | #define TCM_ORDERED_TAG 0x22 | |
468 | #define TCM_ACA_TAG 0x24 | |
469 | ||
c66ac9db | 470 | struct se_cmd { |
44678553 SS |
471 | /* Used for fail with specific sense codes */ |
472 | sense_reason_t sense_reason; | |
c66ac9db NB |
473 | /* SAM response code being sent to initiator */ |
474 | u8 scsi_status; | |
c66ac9db | 475 | u16 scsi_sense_length; |
915270c3 RD |
476 | unsigned unknown_data_length:1; |
477 | bool state_active:1; | |
649ee054 | 478 | u64 tag; /* SAM command identifier aka task tag */ |
c66ac9db NB |
479 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
480 | int alua_nonop_delay; | |
481 | /* See include/linux/dma-mapping.h */ | |
482 | enum dma_data_direction data_direction; | |
483 | /* For SAM Task Attribute */ | |
484 | int sam_task_attr; | |
c0add7fd NB |
485 | /* Used for se_sess->sess_tag_pool */ |
486 | unsigned int map_tag; | |
10e9cbb6 | 487 | int map_cpu; |
c66ac9db NB |
488 | /* Transport protocol dependent state, see transport_state_table */ |
489 | enum transport_state_table t_state; | |
c66ac9db NB |
490 | /* See se_cmd_flags_table */ |
491 | u32 se_cmd_flags; | |
c66ac9db NB |
492 | /* Total size in bytes associated with command */ |
493 | u32 data_length; | |
c66ac9db | 494 | u32 residual_count; |
f2d30680 | 495 | u64 orig_fe_lun; |
c66ac9db NB |
496 | /* Persistent Reservation key */ |
497 | u64 pr_res_key; | |
c66ac9db NB |
498 | /* Used for sense data */ |
499 | void *sense_buffer; | |
5951146d | 500 | struct list_head se_delayed_node; |
07bde79a | 501 | struct list_head se_qf_node; |
c66ac9db | 502 | struct se_device *se_dev; |
c66ac9db NB |
503 | struct se_lun *se_lun; |
504 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
505 | struct se_session *se_sess; | |
becd9be6 | 506 | struct target_cmd_counter *cmd_cnt; |
c66ac9db | 507 | struct se_tmr_req *se_tmr_req; |
eb44ce8c | 508 | struct llist_node se_cmd_list; |
a014c364 BVA |
509 | struct completion *free_compl; |
510 | struct completion *abrt_compl; | |
9ac8928e | 511 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 512 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
057085e5 | 513 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *); |
7a971b1b | 514 | void *protocol_data; |
07bde79a | 515 | |
a1d8b49a AG |
516 | unsigned char *t_task_cdb; |
517 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
518 | unsigned long long t_task_lba; | |
a82a9538 | 519 | unsigned int t_task_nolb; |
7d680f3b CH |
520 | unsigned int transport_state; |
521 | #define CMD_T_ABORTED (1 << 0) | |
522 | #define CMD_T_ACTIVE (1 << 1) | |
523 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
524 | #define CMD_T_SENT (1 << 4) |
525 | #define CMD_T_STOP (1 << 5) | |
0f4a9431 NB |
526 | #define CMD_T_TAS (1 << 10) |
527 | #define CMD_T_FABRIC_STOP (1 << 11) | |
a1d8b49a | 528 | spinlock_t t_state_lock; |
915270c3 | 529 | struct kref cmd_kref; |
a1d8b49a | 530 | struct completion t_transport_stop_comp; |
05d1c7c0 | 531 | |
35e0e757 CH |
532 | struct work_struct work; |
533 | ||
ec98f782 | 534 | struct scatterlist *t_data_sg; |
47e459e6 | 535 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 536 | unsigned int t_data_nents; |
47e459e6 | 537 | unsigned int t_data_nents_orig; |
4949314c | 538 | void *t_data_vmap; |
ec98f782 AG |
539 | struct scatterlist *t_bidi_data_sg; |
540 | unsigned int t_bidi_data_nents; | |
541 | ||
915270c3 RD |
542 | /* Used for lun->lun_ref counting */ |
543 | int lun_ref_active; | |
544 | ||
cf572a96 | 545 | struct list_head state_list; |
cf572a96 | 546 | |
5787cacd CH |
547 | /* backend private data */ |
548 | void *priv; | |
5277797d | 549 | |
ce65e5b9 NB |
550 | /* DIF related members */ |
551 | enum target_prot_op prot_op; | |
552 | enum target_prot_type prot_type; | |
19f9361a | 553 | u8 prot_checks; |
915270c3 | 554 | bool prot_pto; |
ce65e5b9 NB |
555 | u32 prot_length; |
556 | u32 reftag_seed; | |
557 | struct scatterlist *t_prot_sg; | |
558 | unsigned int t_prot_nents; | |
ce65e5b9 | 559 | sense_reason_t pi_err; |
8dd992fb | 560 | u64 sense_info; |
1526d9f1 MC |
561 | /* |
562 | * CPU LIO will execute the cmd on. Defaults to the CPU the cmd is | |
563 | * initialized on. Drivers can override. | |
564 | */ | |
fb3269ba | 565 | int cpuid; |
e0a53e70 | 566 | }; |
c66ac9db | 567 | |
c66ac9db NB |
568 | struct se_ua { |
569 | u8 ua_asc; | |
570 | u8 ua_ascq; | |
c66ac9db | 571 | struct list_head ua_nacl_list; |
e0a53e70 | 572 | }; |
c66ac9db NB |
573 | |
574 | struct se_node_acl { | |
575 | char initiatorname[TRANSPORT_IQN_LEN]; | |
576 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 577 | bool dynamic_node_acl; |
01d4d673 | 578 | bool dynamic_stop; |
c66ac9db NB |
579 | u32 queue_depth; |
580 | u32 acl_index; | |
bffb5128 | 581 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
582 | #define MAX_ACL_TAG_SIZE 64 |
583 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
584 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
585 | atomic_t acl_pr_ref_count; | |
29a05dee | 586 | struct hlist_head lun_entry_hlist; |
c66ac9db NB |
587 | struct se_session *nacl_sess; |
588 | struct se_portal_group *se_tpg; | |
29a05dee | 589 | struct mutex lun_entry_mutex; |
c66ac9db NB |
590 | spinlock_t nacl_sess_lock; |
591 | struct config_group acl_group; | |
592 | struct config_group acl_attrib_group; | |
593 | struct config_group acl_auth_group; | |
594 | struct config_group acl_param_group; | |
12d23384 | 595 | struct config_group acl_fabric_stat_group; |
c66ac9db NB |
596 | struct list_head acl_list; |
597 | struct list_head acl_sess_list; | |
01468346 | 598 | struct completion acl_free_comp; |
afb999ff | 599 | struct kref acl_kref; |
e0a53e70 | 600 | }; |
c66ac9db | 601 | |
2eafd729 CH |
602 | static inline struct se_node_acl *acl_to_nacl(struct config_item *item) |
603 | { | |
604 | return container_of(to_config_group(item), struct se_node_acl, | |
605 | acl_group); | |
606 | } | |
607 | ||
608 | static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) | |
609 | { | |
610 | return container_of(to_config_group(item), struct se_node_acl, | |
611 | acl_attrib_group); | |
612 | } | |
613 | ||
614 | static inline struct se_node_acl *auth_to_nacl(struct config_item *item) | |
615 | { | |
616 | return container_of(to_config_group(item), struct se_node_acl, | |
617 | acl_auth_group); | |
618 | } | |
619 | ||
620 | static inline struct se_node_acl *param_to_nacl(struct config_item *item) | |
621 | { | |
622 | return container_of(to_config_group(item), struct se_node_acl, | |
623 | acl_param_group); | |
624 | } | |
625 | ||
626 | static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) | |
627 | { | |
628 | return container_of(to_config_group(item), struct se_node_acl, | |
629 | acl_fabric_stat_group); | |
630 | } | |
631 | ||
becd9be6 MC |
632 | struct target_cmd_counter { |
633 | struct percpu_ref refcnt; | |
634 | wait_queue_head_t refcnt_wq; | |
635 | struct completion stop_done; | |
6f55b06f | 636 | atomic_t stopped; |
becd9be6 MC |
637 | }; |
638 | ||
639 | struct se_session { | |
c66ac9db | 640 | u64 sess_bin_isid; |
e70beee7 | 641 | enum target_prot_op sup_prot_ops; |
38b57f82 | 642 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
643 | struct se_node_acl *se_node_acl; |
644 | struct se_portal_group *se_tpg; | |
645 | void *fabric_sess_ptr; | |
646 | struct list_head sess_list; | |
647 | struct list_head sess_acl_list; | |
a17f091d | 648 | spinlock_t sess_cmd_lock; |
c0add7fd | 649 | void *sess_cmd_map; |
10e9cbb6 | 650 | struct sbitmap_queue sess_tag_pool; |
becd9be6 | 651 | struct target_cmd_counter *cmd_cnt; |
e0a53e70 | 652 | }; |
c66ac9db | 653 | |
c66ac9db NB |
654 | struct se_device; |
655 | struct se_transform_info; | |
656 | struct scatterlist; | |
657 | ||
12d23384 NB |
658 | struct se_ml_stat_grps { |
659 | struct config_group stat_group; | |
660 | struct config_group scsi_auth_intr_group; | |
661 | struct config_group scsi_att_intr_port_group; | |
662 | }; | |
663 | ||
c66ac9db | 664 | struct se_lun_acl { |
f2d30680 | 665 | u64 mapped_lun; |
c66ac9db NB |
666 | struct se_node_acl *se_lun_nacl; |
667 | struct se_lun *se_lun; | |
c66ac9db | 668 | struct config_group se_lun_group; |
12d23384 | 669 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 670 | }; |
c66ac9db NB |
671 | |
672 | struct se_dev_entry { | |
f2d30680 | 673 | u64 mapped_lun; |
c66ac9db NB |
674 | u64 pr_res_key; |
675 | u64 creation_time; | |
03a68b44 | 676 | bool lun_access_ro; |
c66ac9db | 677 | u32 attach_count; |
29a05dee NB |
678 | atomic_long_t total_cmds; |
679 | atomic_long_t read_bytes; | |
680 | atomic_long_t write_bytes; | |
c66ac9db | 681 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
29a05dee NB |
682 | struct kref pr_kref; |
683 | struct completion pr_comp; | |
ef4f7e4b | 684 | struct se_lun_acl *se_lun_acl; |
c66ac9db | 685 | spinlock_t ua_lock; |
ef4f7e4b | 686 | struct se_lun *se_lun; |
80bfdfa9 NB |
687 | #define DEF_PR_REG_ACTIVE 1 |
688 | unsigned long deve_flags; | |
c66ac9db | 689 | struct list_head alua_port_list; |
adf653f9 | 690 | struct list_head lun_link; |
c66ac9db | 691 | struct list_head ua_list; |
29a05dee NB |
692 | struct hlist_node link; |
693 | struct rcu_head rcu_head; | |
e0a53e70 | 694 | }; |
c66ac9db | 695 | |
c66ac9db | 696 | struct se_dev_attrib { |
87310c9f DD |
697 | bool emulate_model_alias; |
698 | bool emulate_dpo; /* deprecated */ | |
699 | bool emulate_fua_write; | |
700 | bool emulate_fua_read; /* deprecated */ | |
701 | bool emulate_write_cache; | |
1bf630fd | 702 | enum target_ua_intlck_ctrl emulate_ua_intlck_ctrl; |
87310c9f DD |
703 | bool emulate_tas; |
704 | bool emulate_tpu; | |
705 | bool emulate_tpws; | |
706 | bool emulate_caw; | |
707 | bool emulate_3pc; | |
708 | bool emulate_pr; | |
bd217b8c | 709 | bool emulate_rsoc; |
ce65e5b9 NB |
710 | enum target_prot_type pi_prot_type; |
711 | enum target_prot_type hw_pi_prot_type; | |
87310c9f DD |
712 | bool pi_prot_verify; |
713 | bool enforce_pr_isids; | |
714 | bool force_pr_aptpl; | |
715 | bool is_nonrot; | |
716 | bool emulate_rest_reord; | |
738981bd | 717 | bool unmap_zeroes_data; |
c66ac9db NB |
718 | u32 hw_block_size; |
719 | u32 block_size; | |
720 | u32 hw_max_sectors; | |
c66ac9db NB |
721 | u32 optimal_sectors; |
722 | u32 hw_queue_depth; | |
723 | u32 queue_depth; | |
c66ac9db NB |
724 | u32 max_unmap_lba_count; |
725 | u32 max_unmap_block_desc_count; | |
726 | u32 unmap_granularity; | |
727 | u32 unmap_granularity_alignment; | |
773cbaf7 | 728 | u32 max_write_same_len; |
0fd97ccf | 729 | struct se_device *da_dev; |
c66ac9db | 730 | struct config_group da_group; |
e0a53e70 | 731 | }; |
c66ac9db | 732 | |
4863e525 NB |
733 | struct se_port_stat_grps { |
734 | struct config_group stat_group; | |
735 | struct config_group scsi_port_group; | |
736 | struct config_group scsi_tgt_port_group; | |
737 | struct config_group scsi_transport_group; | |
738 | }; | |
739 | ||
adf653f9 | 740 | struct scsi_port_stats { |
4cc987ea NB |
741 | atomic_long_t cmd_pdus; |
742 | atomic_long_t tx_data_octets; | |
743 | atomic_long_t rx_data_octets; | |
adf653f9 CH |
744 | }; |
745 | ||
4863e525 | 746 | struct se_lun { |
f2d30680 | 747 | u64 unpacked_lun; |
49cb77e2 | 748 | bool lun_shutdown; |
03a68b44 | 749 | bool lun_access_ro; |
29a05dee | 750 | u32 lun_index; |
f2d30680 | 751 | |
4863e525 | 752 | atomic_t lun_acl_count; |
adf653f9 CH |
753 | struct se_device __rcu *lun_se_dev; |
754 | ||
755 | struct list_head lun_deve_list; | |
756 | spinlock_t lun_deve_lock; | |
757 | ||
758 | /* ALUA state */ | |
759 | int lun_tg_pt_secondary_stat; | |
760 | int lun_tg_pt_secondary_write_md; | |
761 | atomic_t lun_tg_pt_secondary_offline; | |
762 | struct mutex lun_tg_pt_md_mutex; | |
763 | ||
764 | /* ALUA target port group linkage */ | |
765 | struct list_head lun_tg_pt_gp_link; | |
7324f47d | 766 | struct t10_alua_tg_pt_gp __rcu *lun_tg_pt_gp; |
adf653f9 CH |
767 | spinlock_t lun_tg_pt_gp_lock; |
768 | ||
adf653f9 CH |
769 | struct se_portal_group *lun_tpg; |
770 | struct scsi_port_stats lun_stats; | |
4863e525 NB |
771 | struct config_group lun_group; |
772 | struct se_port_stat_grps port_stat_grps; | |
bd4e2d29 | 773 | struct completion lun_shutdown_comp; |
4863e525 | 774 | struct percpu_ref lun_ref; |
adf653f9 | 775 | struct list_head lun_dev_link; |
6bb82612 NB |
776 | struct hlist_node link; |
777 | struct rcu_head rcu_head; | |
4863e525 NB |
778 | }; |
779 | ||
12d23384 NB |
780 | struct se_dev_stat_grps { |
781 | struct config_group stat_group; | |
782 | struct config_group scsi_dev_group; | |
783 | struct config_group scsi_tgt_dev_group; | |
784 | struct config_group scsi_lu_group; | |
785 | }; | |
786 | ||
eb44ce8c MC |
787 | struct se_cmd_queue { |
788 | struct llist_head cmd_list; | |
789 | struct work_struct work; | |
790 | }; | |
791 | ||
302990ac MC |
792 | struct se_dev_plug { |
793 | struct se_device *se_dev; | |
794 | }; | |
795 | ||
1526d9f1 MC |
796 | struct se_device_queue { |
797 | struct list_head state_list; | |
798 | spinlock_t lock; | |
eb44ce8c | 799 | struct se_cmd_queue sq; |
1526d9f1 MC |
800 | }; |
801 | ||
c66ac9db | 802 | struct se_device { |
c66ac9db NB |
803 | /* Used for SAM Task Attribute ordering */ |
804 | u32 dev_cur_ordered_id; | |
805 | u32 dev_flags; | |
0fd97ccf CH |
806 | #define DF_CONFIGURED 0x00000001 |
807 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
808 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
809 | #define DF_USING_UDEV_PATH 0x00000008 | |
810 | #define DF_USING_ALIAS 0x00000010 | |
eeeb9522 | 811 | #define DF_READ_ONLY 0x00000020 |
69088a04 | 812 | u8 transport_flags; |
c66ac9db NB |
813 | /* Physical device queue depth */ |
814 | u32 queue_depth; | |
815 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
816 | u64 dev_res_bin_isid; | |
c66ac9db | 817 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
818 | u32 dev_index; |
819 | u64 creation_time; | |
ee480683 | 820 | atomic_long_t num_resets; |
c87ba9c4 NB |
821 | atomic_long_t aborts_complete; |
822 | atomic_long_t aborts_no_task; | |
ee480683 NB |
823 | atomic_long_t num_cmds; |
824 | atomic_long_t read_bytes; | |
825 | atomic_long_t write_bytes; | |
c66ac9db | 826 | /* Active commands on this virtual SE device */ |
ed1227e0 MC |
827 | atomic_t non_ordered; |
828 | bool ordered_sync_in_progress; | |
829 | atomic_t delayed_cmd_count; | |
07bde79a | 830 | atomic_t dev_qf_count; |
adf653f9 | 831 | u32 export_count; |
c66ac9db | 832 | spinlock_t delayed_cmd_lock; |
c66ac9db | 833 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
834 | unsigned int dev_reservation_flags; |
835 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
836 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
837 | spinlock_t se_port_lock; |
838 | spinlock_t se_tmr_lock; | |
07bde79a | 839 | spinlock_t qf_cmd_lock; |
68ff9b9b | 840 | struct semaphore caw_sem; |
fae43461 BVA |
841 | /* Used for legacy SPC-2 reservations */ |
842 | struct se_session *reservation_holder; | |
c66ac9db NB |
843 | /* Used for ALUA Logical Unit Group membership */ |
844 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
845 | /* Used for SPC-3 Persistent Reservations */ | |
846 | struct t10_pr_registration *dev_pr_res_holder; | |
847 | struct list_head dev_sep_list; | |
848 | struct list_head dev_tmr_list; | |
07bde79a | 849 | struct work_struct qf_work_queue; |
ed1227e0 | 850 | struct work_struct delayed_cmd_work; |
c66ac9db | 851 | struct list_head delayed_cmd_list; |
07bde79a | 852 | struct list_head qf_cmd_list; |
c66ac9db NB |
853 | /* Pointer to associated SE HBA */ |
854 | struct se_hba *se_hba; | |
0fd97ccf CH |
855 | /* T10 Inquiry and VPD WWN Information */ |
856 | struct t10_wwn t10_wwn; | |
857 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
858 | struct t10_alua t10_alua; | |
859 | /* T10 SPC-2 + SPC-3 Reservations */ | |
860 | struct t10_reservation t10_pr; | |
861 | struct se_dev_attrib dev_attrib; | |
8dc31ff9 | 862 | struct config_group dev_action_group; |
0fd97ccf CH |
863 | struct config_group dev_group; |
864 | struct config_group dev_pr_group; | |
865 | struct se_dev_stat_grps dev_stat_grps; | |
866 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
867 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
868 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
869 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db | 870 | /* Pointer to template of function pointers for transport */ |
0a06d430 | 871 | const struct target_backend_ops *transport; |
4863e525 | 872 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
873 | /* Protection Information */ |
874 | int prot_length; | |
4cc987ea NB |
875 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
876 | u32 hba_index; | |
877 | struct rcu_head rcu_head; | |
1526d9f1 MC |
878 | int queue_cnt; |
879 | struct se_device_queue *queues; | |
673db054 | 880 | struct mutex lun_reset_mutex; |
e0a53e70 | 881 | }; |
c66ac9db | 882 | |
b9b8782f DB |
883 | struct target_opcode_descriptor { |
884 | u8 support:3; | |
885 | u8 serv_action_valid:1; | |
886 | u8 opcode; | |
887 | u16 service_action; | |
888 | u32 cdb_size; | |
889 | u8 specific_timeout; | |
890 | u16 nominal_timeout; | |
891 | u16 recommended_timeout; | |
d9b3275b MC |
892 | bool (*enabled)(struct target_opcode_descriptor *descr, |
893 | struct se_cmd *cmd); | |
415d82b4 DB |
894 | void (*update_usage_bits)(u8 *usage_bits, |
895 | struct se_device *dev); | |
b9b8782f DB |
896 | u8 usage_bits[]; |
897 | }; | |
898 | ||
c66ac9db NB |
899 | struct se_hba { |
900 | u16 hba_tpgt; | |
901 | u32 hba_id; | |
902 | /* See hba_flags_table */ | |
903 | u32 hba_flags; | |
904 | /* Virtual iSCSI devices attached. */ | |
905 | u32 dev_count; | |
906 | u32 hba_index; | |
c66ac9db NB |
907 | /* Pointer to transport specific host structure. */ |
908 | void *hba_ptr; | |
e3d6f909 | 909 | struct list_head hba_node; |
c66ac9db | 910 | spinlock_t device_lock; |
c66ac9db NB |
911 | struct config_group hba_group; |
912 | struct mutex hba_access_mutex; | |
0a06d430 | 913 | struct target_backend *backend; |
e0a53e70 | 914 | }; |
c66ac9db NB |
915 | |
916 | struct se_tpg_np { | |
1f6fe7cb | 917 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 918 | struct config_group tpg_np_group; |
e0a53e70 | 919 | }; |
c66ac9db | 920 | |
2eafd729 CH |
921 | static inline struct se_tpg_np *to_tpg_np(struct config_item *item) |
922 | { | |
923 | return container_of(to_config_group(item), struct se_tpg_np, | |
924 | tpg_np_group); | |
925 | } | |
926 | ||
c66ac9db | 927 | struct se_portal_group { |
e4aae5af CH |
928 | /* |
929 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. | |
930 | * | |
931 | * Negative values can be used by fabric drivers for internal use TPGs. | |
932 | */ | |
933 | int proto_id; | |
80ed33c8 | 934 | bool enabled; |
3f4b9cb4 DB |
935 | /* RELATIVE TARGET PORT IDENTIFIER */ |
936 | u16 tpg_rtpi; | |
31177b74 | 937 | bool rtpi_manual; |
c66ac9db NB |
938 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
939 | atomic_t tpg_pr_ref_count; | |
940 | /* Spinlock for adding/removing ACLed Nodes */ | |
403edd78 | 941 | struct mutex acl_node_mutex; |
c66ac9db NB |
942 | /* Spinlock for adding/removing sessions */ |
943 | spinlock_t session_lock; | |
6bb82612 | 944 | struct mutex tpg_lun_mutex; |
c66ac9db NB |
945 | /* linked list for initiator ACL list */ |
946 | struct list_head acl_node_list; | |
6bb82612 | 947 | struct hlist_head tpg_lun_hlist; |
adf653f9 | 948 | struct se_lun *tpg_virt_lun0; |
25985edc | 949 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
950 | struct list_head tpg_sess_list; |
951 | /* Pointer to $FABRIC_MOD dependent code */ | |
9ac8928e | 952 | const struct target_core_fabric_ops *se_tpg_tfo; |
c66ac9db NB |
953 | struct se_wwn *se_tpg_wwn; |
954 | struct config_group tpg_group; | |
c66ac9db NB |
955 | struct config_group tpg_lun_group; |
956 | struct config_group tpg_np_group; | |
957 | struct config_group tpg_acl_group; | |
958 | struct config_group tpg_attrib_group; | |
e4b512e7 | 959 | struct config_group tpg_auth_group; |
c66ac9db | 960 | struct config_group tpg_param_group; |
e0a53e70 | 961 | }; |
c66ac9db | 962 | |
2eafd729 CH |
963 | static inline struct se_portal_group *to_tpg(struct config_item *item) |
964 | { | |
965 | return container_of(to_config_group(item), struct se_portal_group, | |
966 | tpg_group); | |
967 | } | |
968 | ||
969 | static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) | |
970 | { | |
971 | return container_of(to_config_group(item), struct se_portal_group, | |
972 | tpg_attrib_group); | |
973 | } | |
974 | ||
975 | static inline struct se_portal_group *auth_to_tpg(struct config_item *item) | |
976 | { | |
977 | return container_of(to_config_group(item), struct se_portal_group, | |
978 | tpg_auth_group); | |
979 | } | |
980 | ||
981 | static inline struct se_portal_group *param_to_tpg(struct config_item *item) | |
982 | { | |
983 | return container_of(to_config_group(item), struct se_portal_group, | |
984 | tpg_param_group); | |
985 | } | |
986 | ||
39ae3edd MC |
987 | enum { |
988 | /* Use se_cmd's cpuid for completion */ | |
989 | SE_COMPL_AFFINITY_CPUID = -1, | |
990 | /* Complete on current CPU */ | |
991 | SE_COMPL_AFFINITY_CURR_CPU = -2, | |
992 | }; | |
993 | ||
c66ac9db NB |
994 | struct se_wwn { |
995 | struct target_fabric_configfs *wwn_tf; | |
2bce1a6d | 996 | void *priv; |
c66ac9db | 997 | struct config_group wwn_group; |
12d23384 | 998 | struct config_group fabric_stat_group; |
39ae3edd MC |
999 | struct config_group param_group; |
1000 | int cmd_compl_affinity; | |
e0a53e70 | 1001 | }; |
c66ac9db | 1002 | |
33940d09 JE |
1003 | static inline void atomic_inc_mb(atomic_t *v) |
1004 | { | |
1005 | smp_mb__before_atomic(); | |
1006 | atomic_inc(v); | |
1007 | smp_mb__after_atomic(); | |
1008 | } | |
1009 | ||
1010 | static inline void atomic_dec_mb(atomic_t *v) | |
1011 | { | |
1012 | smp_mb__before_atomic(); | |
1013 | atomic_dec(v); | |
1014 | smp_mb__after_atomic(); | |
1015 | } | |
1016 | ||
83c2b54b MW |
1017 | static inline void target_free_tag(struct se_session *sess, struct se_cmd *cmd) |
1018 | { | |
10e9cbb6 | 1019 | sbitmap_queue_clear(&sess->sess_tag_pool, cmd->map_tag, cmd->map_cpu); |
83c2b54b MW |
1020 | } |
1021 | ||
c66ac9db | 1022 | #endif /* TARGET_CORE_BASE_H */ |