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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 | |
77 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
78 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
79 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
80 | #define DA_EMULATE_TAS 1 | |
81 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
82 | #define DA_EMULATE_TPU 0 | |
83 | /* | |
84 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
85 | * block/blk-lib.c:blkdev_issue_discard() | |
86 | */ | |
87 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
88 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
89 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
90 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
91 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 92 | /* No Emulation for PSCSI by default */ |
c4795fb2 | 93 | #define DA_EMULATE_ALUA 0 |
b49d6f78 DD |
94 | /* Emulate SCSI2 RESERVE/RELEASE and Persistent Reservations by default */ |
95 | #define DA_EMULATE_PR 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 | |
c66ac9db NB |
111 | /* struct se_hba->hba_flags */ |
112 | enum hba_flags_table { | |
113 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
114 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
115 | }; | |
116 | ||
c66ac9db NB |
117 | /* Special transport agnostic struct se_cmd->t_states */ |
118 | enum transport_state_table { | |
119 | TRANSPORT_NO_STATE = 0, | |
120 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 121 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 122 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 123 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 124 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 125 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 126 | TRANSPORT_COMPLETE_QF_OK = 19, |
fa7e25cf | 127 | TRANSPORT_COMPLETE_QF_ERR = 20, |
c66ac9db NB |
128 | }; |
129 | ||
130 | /* Used for struct se_cmd->se_cmd_flags */ | |
131 | enum se_cmd_flags_table { | |
132 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
133 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
134 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
135 | SCF_SCSI_DATA_CDB = 0x00000008, |
136 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
137 | SCF_FUA = 0x00000080, |
138 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
139 | SCF_BIDI = 0x00000400, |
140 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
141 | SCF_OVERFLOW_BIT = 0x00001000, | |
142 | SCF_UNDERFLOW_BIT = 0x00002000, | |
64f1db38 | 143 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 | 144 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
a82a9538 | 145 | SCF_COMPARE_AND_WRITE = 0x00080000, |
5835812f | 146 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, |
febe562c | 147 | SCF_ACK_KREF = 0x00400000, |
9095adaa | 148 | SCF_USE_CPUID = 0x00800000, |
410c29df | 149 | SCF_TASK_ATTR_SET = 0x01000000, |
bd813720 | 150 | SCF_TREAT_READ_AS_NORMAL = 0x02000000, |
c66ac9db NB |
151 | }; |
152 | ||
c66ac9db | 153 | /* |
de103c93 | 154 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
155 | * to signal which ASC/ASCQ sense payload should be built. |
156 | */ | |
9efeccac | 157 | typedef unsigned __bitwise sense_reason_t; |
de103c93 | 158 | |
c66ac9db | 159 | enum tcm_sense_reason_table { |
de103c93 | 160 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 161 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
162 | TCM_NON_EXISTENT_LUN = R(0x01), |
163 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
164 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
165 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
166 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
167 | TCM_SNACK_REJECTED = R(0x06), | |
168 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
169 | TCM_INVALID_CDB_FIELD = R(0x08), | |
170 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
171 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
172 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
173 | TCM_WRITE_PROTECTED = R(0x0c), | |
174 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
175 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
176 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), | |
177 | TCM_RESERVATION_CONFLICT = R(0x10), | |
178 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
179 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 180 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 181 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
182 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
183 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
184 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
449a1378 | 185 | TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18), |
e8642120 DD |
186 | TCM_TOO_MANY_TARGET_DESCS = R(0x19), |
187 | TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE = R(0x1a), | |
188 | TCM_TOO_MANY_SEGMENT_DESCS = R(0x1b), | |
189 | TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE = R(0x1c), | |
79dd6f2f | 190 | TCM_INSUFFICIENT_REGISTRATION_RESOURCES = R(0x1d), |
d120c708 | 191 | TCM_LUN_BUSY = R(0x1e), |
de103c93 | 192 | #undef R |
c66ac9db NB |
193 | }; |
194 | ||
a6360785 NB |
195 | enum target_sc_flags_table { |
196 | TARGET_SCF_BIDI_OP = 0x01, | |
197 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 198 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
5465e7d3 NB |
199 | TARGET_SCF_USE_CPUID = 0x08, |
200 | TARGET_SCF_LOOKUP_LUN_FROM_TAG = 0x10, | |
a6360785 NB |
201 | }; |
202 | ||
c4795fb2 CH |
203 | /* fabric independent task management function values */ |
204 | enum tcm_tmreq_table { | |
205 | TMR_ABORT_TASK = 1, | |
206 | TMR_ABORT_TASK_SET = 2, | |
207 | TMR_CLEAR_ACA = 3, | |
208 | TMR_CLEAR_TASK_SET = 4, | |
209 | TMR_LUN_RESET = 5, | |
210 | TMR_TARGET_WARM_RESET = 6, | |
211 | TMR_TARGET_COLD_RESET = 7, | |
e381fe9e | 212 | TMR_UNKNOWN = 0xff, |
c4795fb2 CH |
213 | }; |
214 | ||
215 | /* fabric independent task management response values */ | |
216 | enum tcm_tmrsp_table { | |
a314d700 | 217 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
218 | TMR_FUNCTION_COMPLETE = 1, |
219 | TMR_TASK_DOES_NOT_EXIST = 2, | |
220 | TMR_LUN_DOES_NOT_EXIST = 3, | |
221 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
222 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
223 | }; |
224 | ||
e89d15ee NB |
225 | /* |
226 | * Used for target SCSI statistics | |
227 | */ | |
228 | typedef enum { | |
229 | SCSI_INST_INDEX, | |
e89d15ee NB |
230 | SCSI_AUTH_INTR_INDEX, |
231 | SCSI_INDEX_TYPE_MAX | |
232 | } scsi_index_t; | |
233 | ||
c66ac9db NB |
234 | struct se_cmd; |
235 | ||
c66094bf HR |
236 | struct t10_alua_lba_map_member { |
237 | struct list_head lba_map_mem_list; | |
238 | int lba_map_mem_alua_state; | |
239 | int lba_map_mem_alua_pg_id; | |
240 | }; | |
241 | ||
242 | struct t10_alua_lba_map { | |
243 | u64 lba_map_first_lba; | |
244 | u64 lba_map_last_lba; | |
245 | struct list_head lba_map_list; | |
246 | struct list_head lba_map_mem_list; | |
247 | }; | |
248 | ||
c66ac9db | 249 | struct t10_alua { |
c66ac9db NB |
250 | /* ALUA Target Port Group ID */ |
251 | u16 alua_tg_pt_gps_counter; | |
252 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
253 | /* Referrals support */ |
254 | spinlock_t lba_map_lock; | |
255 | u32 lba_map_segment_size; | |
256 | u32 lba_map_segment_multiplier; | |
257 | struct list_head lba_map_list; | |
c66ac9db | 258 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 259 | struct se_device *t10_dev; |
c66ac9db NB |
260 | /* Used for default ALUA Target Port Group */ |
261 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
262 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
263 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 264 | struct list_head tg_pt_gps_list; |
e0a53e70 | 265 | }; |
c66ac9db NB |
266 | |
267 | struct t10_alua_lu_gp { | |
268 | u16 lu_gp_id; | |
269 | int lu_gp_valid_id; | |
270 | u32 lu_gp_members; | |
c66ac9db NB |
271 | atomic_t lu_gp_ref_cnt; |
272 | spinlock_t lu_gp_lock; | |
273 | struct config_group lu_gp_group; | |
e3d6f909 | 274 | struct list_head lu_gp_node; |
c66ac9db | 275 | struct list_head lu_gp_mem_list; |
e0a53e70 | 276 | }; |
c66ac9db NB |
277 | |
278 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 279 | bool lu_gp_assoc; |
c66ac9db NB |
280 | atomic_t lu_gp_mem_ref_cnt; |
281 | spinlock_t lu_gp_mem_lock; | |
282 | struct t10_alua_lu_gp *lu_gp; | |
283 | struct se_device *lu_gp_mem_dev; | |
284 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 285 | }; |
c66ac9db NB |
286 | |
287 | struct t10_alua_tg_pt_gp { | |
288 | u16 tg_pt_gp_id; | |
289 | int tg_pt_gp_valid_id; | |
c0dc941e | 290 | int tg_pt_gp_alua_supported_states; |
c66ac9db NB |
291 | int tg_pt_gp_alua_access_status; |
292 | int tg_pt_gp_alua_access_type; | |
293 | int tg_pt_gp_nonop_delay_msecs; | |
294 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 295 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
296 | int tg_pt_gp_pref; |
297 | int tg_pt_gp_write_metadata; | |
c66ac9db | 298 | u32 tg_pt_gp_members; |
d19c4643 | 299 | int tg_pt_gp_alua_access_state; |
c66ac9db NB |
300 | atomic_t tg_pt_gp_ref_cnt; |
301 | spinlock_t tg_pt_gp_lock; | |
d19c4643 | 302 | struct mutex tg_pt_gp_transition_mutex; |
0fd97ccf | 303 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
304 | struct config_group tg_pt_gp_group; |
305 | struct list_head tg_pt_gp_list; | |
adf653f9 CH |
306 | struct list_head tg_pt_gp_lun_list; |
307 | struct se_lun *tg_pt_gp_alua_lun; | |
9c6e164c | 308 | struct se_node_acl *tg_pt_gp_alua_nacl; |
e0a53e70 | 309 | }; |
c66ac9db | 310 | |
c66ac9db NB |
311 | struct t10_vpd { |
312 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
313 | int protocol_identifier_set; | |
314 | u32 protocol_identifier; | |
315 | u32 device_identifier_code_set; | |
316 | u32 association; | |
317 | u32 device_identifier_type; | |
318 | struct list_head vpd_list; | |
e0a53e70 | 319 | }; |
c66ac9db NB |
320 | |
321 | struct t10_wwn { | |
b2da4abf DD |
322 | /* |
323 | * SCSI left aligned strings may not be null terminated. +1 to ensure a | |
324 | * null terminator is always present. | |
325 | */ | |
326 | char vendor[INQUIRY_VENDOR_LEN + 1]; | |
327 | char model[INQUIRY_MODEL_LEN + 1]; | |
328 | char revision[INQUIRY_REVISION_LEN + 1]; | |
e3d6f909 | 329 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; |
c66ac9db | 330 | spinlock_t t10_vpd_lock; |
0fd97ccf | 331 | struct se_device *t10_dev; |
c66ac9db NB |
332 | struct config_group t10_wwn_group; |
333 | struct list_head t10_vpd_list; | |
e0a53e70 | 334 | }; |
c66ac9db | 335 | |
c66ac9db NB |
336 | struct t10_pr_registration { |
337 | /* Used for fabrics that contain WWN+ISID */ | |
338 | #define PR_REG_ISID_LEN 16 | |
339 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
340 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
341 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
342 | /* Used during APTPL metadata reading */ | |
343 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
344 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
345 | /* Used during APTPL metadata reading */ | |
346 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
347 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
348 | u16 pr_aptpl_rpti; |
349 | u16 pr_reg_tpgt; | |
350 | /* Reservation effects all target ports */ | |
351 | int pr_reg_all_tg_pt; | |
352 | /* Activate Persistence across Target Power Loss */ | |
353 | int pr_reg_aptpl; | |
354 | int pr_res_holder; | |
355 | int pr_res_type; | |
356 | int pr_res_scope; | |
357 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 358 | bool isid_present_at_reg; |
f2d30680 HR |
359 | u64 pr_res_mapped_lun; |
360 | u64 pr_aptpl_target_lun; | |
79dc9c9e | 361 | u16 tg_pt_sep_rtpi; |
c66ac9db NB |
362 | u32 pr_res_generation; |
363 | u64 pr_reg_bin_isid; | |
364 | u64 pr_res_key; | |
365 | atomic_t pr_res_holders; | |
366 | struct se_node_acl *pr_reg_nacl; | |
79dc9c9e | 367 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
c66ac9db | 368 | struct se_dev_entry *pr_reg_deve; |
c66ac9db NB |
369 | struct list_head pr_reg_list; |
370 | struct list_head pr_reg_abort_list; | |
371 | struct list_head pr_reg_aptpl_list; | |
372 | struct list_head pr_reg_atp_list; | |
373 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 374 | }; |
c66ac9db | 375 | |
e3d6f909 | 376 | struct t10_reservation { |
c66ac9db NB |
377 | /* Reservation effects all target ports */ |
378 | int pr_all_tg_pt; | |
379 | /* Activate Persistence across Target Power Loss enabled | |
380 | * for SCSI device */ | |
381 | int pr_aptpl_active; | |
f161d4b4 | 382 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 383 | u32 pr_generation; |
c66ac9db NB |
384 | spinlock_t registration_lock; |
385 | spinlock_t aptpl_reg_lock; | |
386 | /* | |
387 | * This will always be set by one individual I_T Nexus. | |
388 | * However with all_tg_pt=1, other I_T Nexus from the | |
389 | * same initiator can access PR reg/res info on a different | |
390 | * target port. | |
391 | * | |
392 | * There is also the 'All Registrants' case, where there is | |
393 | * a single *pr_res_holder of the reservation, but all | |
394 | * registrations are considered reservation holders. | |
395 | */ | |
396 | struct se_node_acl *pr_res_holder; | |
397 | struct list_head registration_list; | |
398 | struct list_head aptpl_reg_list; | |
e0a53e70 | 399 | }; |
c66ac9db | 400 | |
c8e31f26 AG |
401 | struct se_tmr_req { |
402 | /* Task Management function to be performed */ | |
403 | u8 function; | |
404 | /* Task Management response to send */ | |
405 | u8 response; | |
406 | int call_transport; | |
407 | /* Reference to ITT that Task Mgmt should be performed */ | |
649ee054 | 408 | u64 ref_task_tag; |
c8e31f26 AG |
409 | void *fabric_tmr_ptr; |
410 | struct se_cmd *task_cmd; | |
c8e31f26 | 411 | struct se_device *tmr_dev; |
c8e31f26 AG |
412 | struct list_head tmr_list; |
413 | }; | |
414 | ||
ce65e5b9 | 415 | enum target_prot_op { |
e70beee7 NB |
416 | TARGET_PROT_NORMAL = 0, |
417 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
418 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
419 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
420 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
421 | TARGET_PROT_DIN_PASS = (1 << 4), | |
422 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
423 | }; |
424 | ||
e70beee7 NB |
425 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
426 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
427 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
428 | ||
ce65e5b9 NB |
429 | enum target_prot_type { |
430 | TARGET_DIF_TYPE0_PROT, | |
431 | TARGET_DIF_TYPE1_PROT, | |
432 | TARGET_DIF_TYPE2_PROT, | |
433 | TARGET_DIF_TYPE3_PROT, | |
434 | }; | |
435 | ||
19f9361a SG |
436 | enum target_core_dif_check { |
437 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
438 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
439 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
440 | }; | |
441 | ||
68d81f40 CH |
442 | /* for sam_task_attr */ |
443 | #define TCM_SIMPLE_TAG 0x20 | |
444 | #define TCM_HEAD_TAG 0x21 | |
445 | #define TCM_ORDERED_TAG 0x22 | |
446 | #define TCM_ACA_TAG 0x24 | |
447 | ||
c66ac9db NB |
448 | struct se_cmd { |
449 | /* SAM response code being sent to initiator */ | |
450 | u8 scsi_status; | |
451 | u8 scsi_asc; | |
452 | u8 scsi_ascq; | |
c66ac9db | 453 | u16 scsi_sense_length; |
915270c3 RD |
454 | unsigned unknown_data_length:1; |
455 | bool state_active:1; | |
649ee054 | 456 | u64 tag; /* SAM command identifier aka task tag */ |
c66ac9db NB |
457 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
458 | int alua_nonop_delay; | |
459 | /* See include/linux/dma-mapping.h */ | |
460 | enum dma_data_direction data_direction; | |
461 | /* For SAM Task Attribute */ | |
462 | int sam_task_attr; | |
c0add7fd NB |
463 | /* Used for se_sess->sess_tag_pool */ |
464 | unsigned int map_tag; | |
10e9cbb6 | 465 | int map_cpu; |
c66ac9db NB |
466 | /* Transport protocol dependent state, see transport_state_table */ |
467 | enum transport_state_table t_state; | |
c66ac9db NB |
468 | /* See se_cmd_flags_table */ |
469 | u32 se_cmd_flags; | |
c66ac9db NB |
470 | /* Total size in bytes associated with command */ |
471 | u32 data_length; | |
c66ac9db | 472 | u32 residual_count; |
f2d30680 | 473 | u64 orig_fe_lun; |
c66ac9db NB |
474 | /* Persistent Reservation key */ |
475 | u64 pr_res_key; | |
c66ac9db NB |
476 | /* Used for sense data */ |
477 | void *sense_buffer; | |
5951146d | 478 | struct list_head se_delayed_node; |
07bde79a | 479 | struct list_head se_qf_node; |
c66ac9db | 480 | struct se_device *se_dev; |
c66ac9db NB |
481 | struct se_lun *se_lun; |
482 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
483 | struct se_session *se_sess; | |
484 | struct se_tmr_req *se_tmr_req; | |
a17f091d | 485 | struct list_head se_cmd_list; |
a014c364 BVA |
486 | struct completion *free_compl; |
487 | struct completion *abrt_compl; | |
9ac8928e | 488 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 489 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
057085e5 | 490 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *); |
7a971b1b | 491 | void *protocol_data; |
07bde79a | 492 | |
a1d8b49a AG |
493 | unsigned char *t_task_cdb; |
494 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
495 | unsigned long long t_task_lba; | |
a82a9538 | 496 | unsigned int t_task_nolb; |
7d680f3b CH |
497 | unsigned int transport_state; |
498 | #define CMD_T_ABORTED (1 << 0) | |
499 | #define CMD_T_ACTIVE (1 << 1) | |
500 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
501 | #define CMD_T_SENT (1 << 4) |
502 | #define CMD_T_STOP (1 << 5) | |
0f4a9431 NB |
503 | #define CMD_T_TAS (1 << 10) |
504 | #define CMD_T_FABRIC_STOP (1 << 11) | |
1c21a480 | 505 | #define CMD_T_PRE_EXECUTE (1 << 12) |
a1d8b49a | 506 | spinlock_t t_state_lock; |
915270c3 | 507 | struct kref cmd_kref; |
a1d8b49a | 508 | struct completion t_transport_stop_comp; |
05d1c7c0 | 509 | |
35e0e757 CH |
510 | struct work_struct work; |
511 | ||
ec98f782 | 512 | struct scatterlist *t_data_sg; |
47e459e6 | 513 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 514 | unsigned int t_data_nents; |
47e459e6 | 515 | unsigned int t_data_nents_orig; |
4949314c | 516 | void *t_data_vmap; |
ec98f782 AG |
517 | struct scatterlist *t_bidi_data_sg; |
518 | unsigned int t_bidi_data_nents; | |
519 | ||
915270c3 RD |
520 | /* Used for lun->lun_ref counting */ |
521 | int lun_ref_active; | |
522 | ||
cf572a96 | 523 | struct list_head state_list; |
cf572a96 | 524 | |
5787cacd CH |
525 | /* backend private data */ |
526 | void *priv; | |
5277797d | 527 | |
ce65e5b9 NB |
528 | /* DIF related members */ |
529 | enum target_prot_op prot_op; | |
530 | enum target_prot_type prot_type; | |
19f9361a | 531 | u8 prot_checks; |
915270c3 | 532 | bool prot_pto; |
ce65e5b9 NB |
533 | u32 prot_length; |
534 | u32 reftag_seed; | |
535 | struct scatterlist *t_prot_sg; | |
536 | unsigned int t_prot_nents; | |
ce65e5b9 | 537 | sense_reason_t pi_err; |
76736db3 | 538 | sector_t bad_sector; |
fb3269ba | 539 | int cpuid; |
e0a53e70 | 540 | }; |
c66ac9db | 541 | |
c66ac9db NB |
542 | struct se_ua { |
543 | u8 ua_asc; | |
544 | u8 ua_ascq; | |
c66ac9db | 545 | struct list_head ua_nacl_list; |
e0a53e70 | 546 | }; |
c66ac9db NB |
547 | |
548 | struct se_node_acl { | |
549 | char initiatorname[TRANSPORT_IQN_LEN]; | |
550 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 551 | bool dynamic_node_acl; |
01d4d673 | 552 | bool dynamic_stop; |
c66ac9db NB |
553 | u32 queue_depth; |
554 | u32 acl_index; | |
bffb5128 | 555 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
556 | #define MAX_ACL_TAG_SIZE 64 |
557 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
558 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
559 | atomic_t acl_pr_ref_count; | |
29a05dee | 560 | struct hlist_head lun_entry_hlist; |
c66ac9db NB |
561 | struct se_session *nacl_sess; |
562 | struct se_portal_group *se_tpg; | |
29a05dee | 563 | struct mutex lun_entry_mutex; |
c66ac9db NB |
564 | spinlock_t nacl_sess_lock; |
565 | struct config_group acl_group; | |
566 | struct config_group acl_attrib_group; | |
567 | struct config_group acl_auth_group; | |
568 | struct config_group acl_param_group; | |
12d23384 | 569 | struct config_group acl_fabric_stat_group; |
c66ac9db NB |
570 | struct list_head acl_list; |
571 | struct list_head acl_sess_list; | |
01468346 | 572 | struct completion acl_free_comp; |
afb999ff | 573 | struct kref acl_kref; |
e0a53e70 | 574 | }; |
c66ac9db | 575 | |
2eafd729 CH |
576 | static inline struct se_node_acl *acl_to_nacl(struct config_item *item) |
577 | { | |
578 | return container_of(to_config_group(item), struct se_node_acl, | |
579 | acl_group); | |
580 | } | |
581 | ||
582 | static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) | |
583 | { | |
584 | return container_of(to_config_group(item), struct se_node_acl, | |
585 | acl_attrib_group); | |
586 | } | |
587 | ||
588 | static inline struct se_node_acl *auth_to_nacl(struct config_item *item) | |
589 | { | |
590 | return container_of(to_config_group(item), struct se_node_acl, | |
591 | acl_auth_group); | |
592 | } | |
593 | ||
594 | static inline struct se_node_acl *param_to_nacl(struct config_item *item) | |
595 | { | |
596 | return container_of(to_config_group(item), struct se_node_acl, | |
597 | acl_param_group); | |
598 | } | |
599 | ||
600 | static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) | |
601 | { | |
602 | return container_of(to_config_group(item), struct se_node_acl, | |
603 | acl_fabric_stat_group); | |
604 | } | |
605 | ||
c66ac9db | 606 | struct se_session { |
5f655e8d | 607 | unsigned sess_tearing_down:1; |
c66ac9db | 608 | u64 sess_bin_isid; |
e70beee7 | 609 | enum target_prot_op sup_prot_ops; |
38b57f82 | 610 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
611 | struct se_node_acl *se_node_acl; |
612 | struct se_portal_group *se_tpg; | |
613 | void *fabric_sess_ptr; | |
ad669505 | 614 | struct percpu_ref cmd_count; |
c66ac9db NB |
615 | struct list_head sess_list; |
616 | struct list_head sess_acl_list; | |
a17f091d | 617 | struct list_head sess_cmd_list; |
a17f091d | 618 | spinlock_t sess_cmd_lock; |
00d909a1 | 619 | wait_queue_head_t cmd_list_wq; |
c0add7fd | 620 | void *sess_cmd_map; |
10e9cbb6 | 621 | struct sbitmap_queue sess_tag_pool; |
e0a53e70 | 622 | }; |
c66ac9db | 623 | |
c66ac9db NB |
624 | struct se_device; |
625 | struct se_transform_info; | |
626 | struct scatterlist; | |
627 | ||
12d23384 NB |
628 | struct se_ml_stat_grps { |
629 | struct config_group stat_group; | |
630 | struct config_group scsi_auth_intr_group; | |
631 | struct config_group scsi_att_intr_port_group; | |
632 | }; | |
633 | ||
c66ac9db | 634 | struct se_lun_acl { |
f2d30680 | 635 | u64 mapped_lun; |
c66ac9db NB |
636 | struct se_node_acl *se_lun_nacl; |
637 | struct se_lun *se_lun; | |
c66ac9db | 638 | struct config_group se_lun_group; |
12d23384 | 639 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 640 | }; |
c66ac9db NB |
641 | |
642 | struct se_dev_entry { | |
f2d30680 | 643 | u64 mapped_lun; |
c66ac9db NB |
644 | u64 pr_res_key; |
645 | u64 creation_time; | |
03a68b44 | 646 | bool lun_access_ro; |
c66ac9db | 647 | u32 attach_count; |
29a05dee NB |
648 | atomic_long_t total_cmds; |
649 | atomic_long_t read_bytes; | |
650 | atomic_long_t write_bytes; | |
c66ac9db | 651 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
29a05dee NB |
652 | struct kref pr_kref; |
653 | struct completion pr_comp; | |
654 | struct se_lun_acl __rcu *se_lun_acl; | |
c66ac9db | 655 | spinlock_t ua_lock; |
29a05dee | 656 | struct se_lun __rcu *se_lun; |
80bfdfa9 NB |
657 | #define DEF_PR_REG_ACTIVE 1 |
658 | unsigned long deve_flags; | |
c66ac9db | 659 | struct list_head alua_port_list; |
adf653f9 | 660 | struct list_head lun_link; |
c66ac9db | 661 | struct list_head ua_list; |
29a05dee NB |
662 | struct hlist_node link; |
663 | struct rcu_head rcu_head; | |
e0a53e70 | 664 | }; |
c66ac9db | 665 | |
c66ac9db | 666 | struct se_dev_attrib { |
adfa9570 | 667 | int emulate_model_alias; |
c66ac9db NB |
668 | int emulate_dpo; |
669 | int emulate_fua_write; | |
670 | int emulate_fua_read; | |
671 | int emulate_write_cache; | |
672 | int emulate_ua_intlck_ctrl; | |
673 | int emulate_tas; | |
674 | int emulate_tpu; | |
675 | int emulate_tpws; | |
0123a9ec | 676 | int emulate_caw; |
d397a445 | 677 | int emulate_3pc; |
b49d6f78 | 678 | int emulate_pr; |
ce65e5b9 NB |
679 | enum target_prot_type pi_prot_type; |
680 | enum target_prot_type hw_pi_prot_type; | |
056e8924 | 681 | int pi_prot_verify; |
c66ac9db | 682 | int enforce_pr_isids; |
92404e60 | 683 | int force_pr_aptpl; |
e22a7f07 | 684 | int is_nonrot; |
5de619a3 | 685 | int emulate_rest_reord; |
e6f41633 | 686 | int unmap_zeroes_data; |
c66ac9db NB |
687 | u32 hw_block_size; |
688 | u32 block_size; | |
689 | u32 hw_max_sectors; | |
c66ac9db NB |
690 | u32 optimal_sectors; |
691 | u32 hw_queue_depth; | |
692 | u32 queue_depth; | |
c66ac9db NB |
693 | u32 max_unmap_lba_count; |
694 | u32 max_unmap_block_desc_count; | |
695 | u32 unmap_granularity; | |
696 | u32 unmap_granularity_alignment; | |
773cbaf7 | 697 | u32 max_write_same_len; |
95cadace | 698 | u32 max_bytes_per_io; |
0fd97ccf | 699 | struct se_device *da_dev; |
c66ac9db | 700 | struct config_group da_group; |
e0a53e70 | 701 | }; |
c66ac9db | 702 | |
4863e525 NB |
703 | struct se_port_stat_grps { |
704 | struct config_group stat_group; | |
705 | struct config_group scsi_port_group; | |
706 | struct config_group scsi_tgt_port_group; | |
707 | struct config_group scsi_transport_group; | |
708 | }; | |
709 | ||
adf653f9 | 710 | struct scsi_port_stats { |
4cc987ea NB |
711 | atomic_long_t cmd_pdus; |
712 | atomic_long_t tx_data_octets; | |
713 | atomic_long_t rx_data_octets; | |
adf653f9 CH |
714 | }; |
715 | ||
4863e525 | 716 | struct se_lun { |
f2d30680 | 717 | u64 unpacked_lun; |
49cb77e2 | 718 | bool lun_shutdown; |
03a68b44 | 719 | bool lun_access_ro; |
29a05dee | 720 | u32 lun_index; |
f2d30680 HR |
721 | |
722 | /* RELATIVE TARGET PORT IDENTIFER */ | |
723 | u16 lun_rtpi; | |
4863e525 | 724 | atomic_t lun_acl_count; |
adf653f9 CH |
725 | struct se_device __rcu *lun_se_dev; |
726 | ||
727 | struct list_head lun_deve_list; | |
728 | spinlock_t lun_deve_lock; | |
729 | ||
730 | /* ALUA state */ | |
731 | int lun_tg_pt_secondary_stat; | |
732 | int lun_tg_pt_secondary_write_md; | |
733 | atomic_t lun_tg_pt_secondary_offline; | |
734 | struct mutex lun_tg_pt_md_mutex; | |
735 | ||
736 | /* ALUA target port group linkage */ | |
737 | struct list_head lun_tg_pt_gp_link; | |
738 | struct t10_alua_tg_pt_gp *lun_tg_pt_gp; | |
739 | spinlock_t lun_tg_pt_gp_lock; | |
740 | ||
adf653f9 CH |
741 | struct se_portal_group *lun_tpg; |
742 | struct scsi_port_stats lun_stats; | |
4863e525 NB |
743 | struct config_group lun_group; |
744 | struct se_port_stat_grps port_stat_grps; | |
bd4e2d29 | 745 | struct completion lun_shutdown_comp; |
4863e525 | 746 | struct percpu_ref lun_ref; |
adf653f9 | 747 | struct list_head lun_dev_link; |
6bb82612 NB |
748 | struct hlist_node link; |
749 | struct rcu_head rcu_head; | |
4863e525 NB |
750 | }; |
751 | ||
12d23384 NB |
752 | struct se_dev_stat_grps { |
753 | struct config_group stat_group; | |
754 | struct config_group scsi_dev_group; | |
755 | struct config_group scsi_tgt_dev_group; | |
756 | struct config_group scsi_lu_group; | |
757 | }; | |
758 | ||
c66ac9db | 759 | struct se_device { |
c66ac9db NB |
760 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
761 | u16 dev_rpti_counter; | |
762 | /* Used for SAM Task Attribute ordering */ | |
763 | u32 dev_cur_ordered_id; | |
764 | u32 dev_flags; | |
0fd97ccf CH |
765 | #define DF_CONFIGURED 0x00000001 |
766 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
767 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
768 | #define DF_USING_UDEV_PATH 0x00000008 | |
769 | #define DF_USING_ALIAS 0x00000010 | |
eeeb9522 | 770 | #define DF_READ_ONLY 0x00000020 |
c66ac9db NB |
771 | /* Physical device queue depth */ |
772 | u32 queue_depth; | |
773 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
774 | u64 dev_res_bin_isid; | |
c66ac9db | 775 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
776 | u32 dev_index; |
777 | u64 creation_time; | |
ee480683 | 778 | atomic_long_t num_resets; |
c87ba9c4 NB |
779 | atomic_long_t aborts_complete; |
780 | atomic_long_t aborts_no_task; | |
ee480683 NB |
781 | atomic_long_t num_cmds; |
782 | atomic_long_t read_bytes; | |
783 | atomic_long_t write_bytes; | |
c66ac9db | 784 | /* Active commands on this virtual SE device */ |
c66ac9db | 785 | atomic_t simple_cmds; |
c66ac9db | 786 | atomic_t dev_ordered_sync; |
07bde79a | 787 | atomic_t dev_qf_count; |
adf653f9 | 788 | u32 export_count; |
c66ac9db | 789 | spinlock_t delayed_cmd_lock; |
c66ac9db | 790 | spinlock_t execute_task_lock; |
c66ac9db | 791 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
792 | unsigned int dev_reservation_flags; |
793 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
794 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
795 | spinlock_t se_port_lock; |
796 | spinlock_t se_tmr_lock; | |
07bde79a | 797 | spinlock_t qf_cmd_lock; |
68ff9b9b | 798 | struct semaphore caw_sem; |
c66ac9db NB |
799 | /* Used for legacy SPC-2 reservationsa */ |
800 | struct se_node_acl *dev_reserved_node_acl; | |
801 | /* Used for ALUA Logical Unit Group membership */ | |
802 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
803 | /* Used for SPC-3 Persistent Reservations */ | |
804 | struct t10_pr_registration *dev_pr_res_holder; | |
805 | struct list_head dev_sep_list; | |
806 | struct list_head dev_tmr_list; | |
07bde79a | 807 | struct work_struct qf_work_queue; |
c66ac9db | 808 | struct list_head delayed_cmd_list; |
cf572a96 | 809 | struct list_head state_list; |
07bde79a | 810 | struct list_head qf_cmd_list; |
c66ac9db NB |
811 | /* Pointer to associated SE HBA */ |
812 | struct se_hba *se_hba; | |
0fd97ccf CH |
813 | /* T10 Inquiry and VPD WWN Information */ |
814 | struct t10_wwn t10_wwn; | |
815 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
816 | struct t10_alua t10_alua; | |
817 | /* T10 SPC-2 + SPC-3 Reservations */ | |
818 | struct t10_reservation t10_pr; | |
819 | struct se_dev_attrib dev_attrib; | |
8dc31ff9 | 820 | struct config_group dev_action_group; |
0fd97ccf CH |
821 | struct config_group dev_group; |
822 | struct config_group dev_pr_group; | |
823 | struct se_dev_stat_grps dev_stat_grps; | |
824 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
825 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
826 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
827 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db | 828 | /* Pointer to template of function pointers for transport */ |
0a06d430 | 829 | const struct target_backend_ops *transport; |
4863e525 | 830 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
831 | /* Protection Information */ |
832 | int prot_length; | |
4cc987ea NB |
833 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
834 | u32 hba_index; | |
835 | struct rcu_head rcu_head; | |
e0a53e70 | 836 | }; |
c66ac9db | 837 | |
c66ac9db NB |
838 | struct se_hba { |
839 | u16 hba_tpgt; | |
840 | u32 hba_id; | |
841 | /* See hba_flags_table */ | |
842 | u32 hba_flags; | |
843 | /* Virtual iSCSI devices attached. */ | |
844 | u32 dev_count; | |
845 | u32 hba_index; | |
c66ac9db NB |
846 | /* Pointer to transport specific host structure. */ |
847 | void *hba_ptr; | |
e3d6f909 | 848 | struct list_head hba_node; |
c66ac9db | 849 | spinlock_t device_lock; |
c66ac9db NB |
850 | struct config_group hba_group; |
851 | struct mutex hba_access_mutex; | |
0a06d430 | 852 | struct target_backend *backend; |
e0a53e70 | 853 | }; |
c66ac9db NB |
854 | |
855 | struct se_tpg_np { | |
1f6fe7cb | 856 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 857 | struct config_group tpg_np_group; |
e0a53e70 | 858 | }; |
c66ac9db | 859 | |
2eafd729 CH |
860 | static inline struct se_tpg_np *to_tpg_np(struct config_item *item) |
861 | { | |
862 | return container_of(to_config_group(item), struct se_tpg_np, | |
863 | tpg_np_group); | |
864 | } | |
865 | ||
c66ac9db | 866 | struct se_portal_group { |
e4aae5af CH |
867 | /* |
868 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. | |
869 | * | |
870 | * Negative values can be used by fabric drivers for internal use TPGs. | |
871 | */ | |
872 | int proto_id; | |
c66ac9db NB |
873 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
874 | atomic_t tpg_pr_ref_count; | |
875 | /* Spinlock for adding/removing ACLed Nodes */ | |
403edd78 | 876 | struct mutex acl_node_mutex; |
c66ac9db NB |
877 | /* Spinlock for adding/removing sessions */ |
878 | spinlock_t session_lock; | |
6bb82612 | 879 | struct mutex tpg_lun_mutex; |
e3d6f909 | 880 | struct list_head se_tpg_node; |
c66ac9db NB |
881 | /* linked list for initiator ACL list */ |
882 | struct list_head acl_node_list; | |
6bb82612 | 883 | struct hlist_head tpg_lun_hlist; |
adf653f9 | 884 | struct se_lun *tpg_virt_lun0; |
25985edc | 885 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
886 | struct list_head tpg_sess_list; |
887 | /* Pointer to $FABRIC_MOD dependent code */ | |
9ac8928e | 888 | const struct target_core_fabric_ops *se_tpg_tfo; |
c66ac9db NB |
889 | struct se_wwn *se_tpg_wwn; |
890 | struct config_group tpg_group; | |
c66ac9db NB |
891 | struct config_group tpg_lun_group; |
892 | struct config_group tpg_np_group; | |
893 | struct config_group tpg_acl_group; | |
894 | struct config_group tpg_attrib_group; | |
e4b512e7 | 895 | struct config_group tpg_auth_group; |
c66ac9db | 896 | struct config_group tpg_param_group; |
e0a53e70 | 897 | }; |
c66ac9db | 898 | |
2eafd729 CH |
899 | static inline struct se_portal_group *to_tpg(struct config_item *item) |
900 | { | |
901 | return container_of(to_config_group(item), struct se_portal_group, | |
902 | tpg_group); | |
903 | } | |
904 | ||
905 | static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) | |
906 | { | |
907 | return container_of(to_config_group(item), struct se_portal_group, | |
908 | tpg_attrib_group); | |
909 | } | |
910 | ||
911 | static inline struct se_portal_group *auth_to_tpg(struct config_item *item) | |
912 | { | |
913 | return container_of(to_config_group(item), struct se_portal_group, | |
914 | tpg_auth_group); | |
915 | } | |
916 | ||
917 | static inline struct se_portal_group *param_to_tpg(struct config_item *item) | |
918 | { | |
919 | return container_of(to_config_group(item), struct se_portal_group, | |
920 | tpg_param_group); | |
921 | } | |
922 | ||
c66ac9db NB |
923 | struct se_wwn { |
924 | struct target_fabric_configfs *wwn_tf; | |
2bce1a6d | 925 | void *priv; |
c66ac9db | 926 | struct config_group wwn_group; |
12d23384 | 927 | struct config_group fabric_stat_group; |
e0a53e70 | 928 | }; |
c66ac9db | 929 | |
33940d09 JE |
930 | static inline void atomic_inc_mb(atomic_t *v) |
931 | { | |
932 | smp_mb__before_atomic(); | |
933 | atomic_inc(v); | |
934 | smp_mb__after_atomic(); | |
935 | } | |
936 | ||
937 | static inline void atomic_dec_mb(atomic_t *v) | |
938 | { | |
939 | smp_mb__before_atomic(); | |
940 | atomic_dec(v); | |
941 | smp_mb__after_atomic(); | |
942 | } | |
943 | ||
83c2b54b MW |
944 | static inline void target_free_tag(struct se_session *sess, struct se_cmd *cmd) |
945 | { | |
10e9cbb6 | 946 | sbitmap_queue_clear(&sess->sess_tag_pool, cmd->map_tag, cmd->map_cpu); |
83c2b54b MW |
947 | } |
948 | ||
c66ac9db | 949 | #endif /* TARGET_CORE_BASE_H */ |