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c66ac9db NB |
1 | #ifndef TARGET_CORE_BASE_H |
2 | #define TARGET_CORE_BASE_H | |
3 | ||
4 | #include <linux/in.h> | |
5 | #include <linux/configfs.h> | |
6 | #include <linux/dma-mapping.h> | |
7 | #include <linux/blkdev.h> | |
c0add7fd | 8 | #include <linux/percpu_ida.h> |
c66ac9db NB |
9 | #include <scsi/scsi_cmnd.h> |
10 | #include <net/sock.h> | |
11 | #include <net/tcp.h> | |
c66ac9db | 12 | |
2999ee7f | 13 | #define TARGET_CORE_MOD_VERSION "v4.1.0" |
c4795fb2 | 14 | #define TARGET_CORE_VERSION TARGET_CORE_MOD_VERSION |
c66ac9db | 15 | |
c66ac9db NB |
16 | /* |
17 | * By default we use 32-byte CDBs in TCM Core and subsystem plugin code. | |
18 | * | |
19 | * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and | |
20 | * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use | |
21 | * 16-byte CDBs by default and require an extra allocation for | |
25985edc | 22 | * 32-byte CDBs to because of legacy issues. |
c66ac9db NB |
23 | * |
24 | * Within TCM Core there are no such legacy limitiations, so we go ahead | |
25 | * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size() | |
26 | * within all TCM Core and subsystem plugin code. | |
27 | */ | |
28 | #define TCM_MAX_COMMAND_SIZE 32 | |
29 | /* | |
30 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
31 | * defined 96, but the real limit is 252 (or 260 including the header) | |
32 | */ | |
33 | #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE | |
34 | /* Used by transport_send_check_condition_and_sense() */ | |
35 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 36 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
37 | #define SPC_DESC_TYPE_OFFSET 8 |
38 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
39 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
40 | #define SPC_ASC_KEY_OFFSET 12 |
41 | #define SPC_ASCQ_KEY_OFFSET 13 | |
42 | #define TRANSPORT_IQN_LEN 224 | |
43 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
44 | #define LU_GROUP_NAME_BUF 256 | |
45 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
46 | #define TG_PT_GROUP_NAME_BUF 256 | |
47 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 48 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
49 | /* Used by transport_generic_cmd_sequencer() */ |
50 | #define READ_BLOCK_LEN 6 | |
51 | #define READ_CAP_LEN 8 | |
52 | #define READ_POSITION_LEN 20 | |
53 | #define INQUIRY_LEN 36 | |
54 | /* Used by transport_get_inquiry_vpd_serial() */ | |
55 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
56 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
57 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
58 | ||
c4795fb2 CH |
59 | /* Attempts before moving from SHORT to LONG */ |
60 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
61 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
62 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
63 | ||
64 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
65 | ||
c4795fb2 CH |
66 | /* struct se_dev_attrib sanity values */ |
67 | /* Default max_unmap_lba_count */ | |
68 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
69 | /* Default max_unmap_block_desc_count */ | |
70 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
71 | /* Default unmap_granularity */ | |
72 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
73 | /* Default unmap_granularity_alignment */ | |
74 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
773cbaf7 NB |
75 | /* Default max_write_same_len, disabled by default */ |
76 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
77 | /* Use a model alias based on the configfs backend device name */ |
78 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
79 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
80 | #define DA_EMULATE_WRITE_CACHE 0 | |
81 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
82 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
83 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
84 | #define DA_EMULATE_TAS 1 | |
85 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
86 | #define DA_EMULATE_TPU 0 | |
87 | /* | |
88 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
89 | * block/blk-lib.c:blkdev_issue_discard() | |
90 | */ | |
91 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
92 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
93 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
94 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
95 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 96 | /* No Emulation for PSCSI by default */ |
c4795fb2 CH |
97 | #define DA_EMULATE_ALUA 0 |
98 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | |
99 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
100 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
101 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
102 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
103 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
104 | /* By default don't report non-rotating (solid state) medium */ | |
105 | #define DA_IS_NONROT 0 | |
106 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
107 | #define DA_EMULATE_REST_REORD 0 | |
108 | ||
f82f320e | 109 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 110 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 111 | #define SE_SENSE_BUF 96 |
c4795fb2 | 112 | |
c66ac9db NB |
113 | /* struct se_hba->hba_flags */ |
114 | enum hba_flags_table { | |
115 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
116 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
117 | }; | |
118 | ||
c66ac9db NB |
119 | /* Special transport agnostic struct se_cmd->t_states */ |
120 | enum transport_state_table { | |
121 | TRANSPORT_NO_STATE = 0, | |
122 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 123 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 124 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 125 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 126 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 127 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 128 | TRANSPORT_COMPLETE_QF_OK = 19, |
c66ac9db NB |
129 | }; |
130 | ||
131 | /* Used for struct se_cmd->se_cmd_flags */ | |
132 | enum se_cmd_flags_table { | |
133 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
134 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
135 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
136 | SCF_SCSI_DATA_CDB = 0x00000008, |
137 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
138 | SCF_FUA = 0x00000080, |
139 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
140 | SCF_BIDI = 0x00000400, |
141 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
142 | SCF_OVERFLOW_BIT = 0x00001000, | |
143 | SCF_UNDERFLOW_BIT = 0x00002000, | |
68259b5a | 144 | SCF_SEND_DELAYED_TAS = 0x00004000, |
64f1db38 | 145 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 | 146 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
a82a9538 NB |
147 | SCF_COMPARE_AND_WRITE = 0x00080000, |
148 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, | |
5835812f | 149 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, |
c66ac9db NB |
150 | }; |
151 | ||
152 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ | |
153 | enum transport_lunflags_table { | |
29a05dee NB |
154 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x01, |
155 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x02, | |
c66ac9db NB |
156 | }; |
157 | ||
c66ac9db | 158 | /* |
de103c93 | 159 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
160 | * to signal which ASC/ASCQ sense payload should be built. |
161 | */ | |
de103c93 CH |
162 | typedef unsigned __bitwise__ sense_reason_t; |
163 | ||
c66ac9db | 164 | enum tcm_sense_reason_table { |
de103c93 | 165 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 166 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
167 | TCM_NON_EXISTENT_LUN = R(0x01), |
168 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
169 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
170 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
171 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
172 | TCM_SNACK_REJECTED = R(0x06), | |
173 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
174 | TCM_INVALID_CDB_FIELD = R(0x08), | |
175 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
176 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
177 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
178 | TCM_WRITE_PROTECTED = R(0x0c), | |
179 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
180 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
181 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), | |
182 | TCM_RESERVATION_CONFLICT = R(0x10), | |
183 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
184 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 185 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 186 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
187 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
188 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
189 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
de103c93 | 190 | #undef R |
c66ac9db NB |
191 | }; |
192 | ||
a6360785 NB |
193 | enum target_sc_flags_table { |
194 | TARGET_SCF_BIDI_OP = 0x01, | |
195 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 196 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
a6360785 NB |
197 | }; |
198 | ||
c4795fb2 CH |
199 | /* fabric independent task management function values */ |
200 | enum tcm_tmreq_table { | |
201 | TMR_ABORT_TASK = 1, | |
202 | TMR_ABORT_TASK_SET = 2, | |
203 | TMR_CLEAR_ACA = 3, | |
204 | TMR_CLEAR_TASK_SET = 4, | |
205 | TMR_LUN_RESET = 5, | |
206 | TMR_TARGET_WARM_RESET = 6, | |
207 | TMR_TARGET_COLD_RESET = 7, | |
c4795fb2 CH |
208 | }; |
209 | ||
210 | /* fabric independent task management response values */ | |
211 | enum tcm_tmrsp_table { | |
a314d700 | 212 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
213 | TMR_FUNCTION_COMPLETE = 1, |
214 | TMR_TASK_DOES_NOT_EXIST = 2, | |
215 | TMR_LUN_DOES_NOT_EXIST = 3, | |
216 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
217 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
218 | }; |
219 | ||
e89d15ee NB |
220 | /* |
221 | * Used for target SCSI statistics | |
222 | */ | |
223 | typedef enum { | |
224 | SCSI_INST_INDEX, | |
225 | SCSI_DEVICE_INDEX, | |
226 | SCSI_AUTH_INTR_INDEX, | |
227 | SCSI_INDEX_TYPE_MAX | |
228 | } scsi_index_t; | |
229 | ||
c66ac9db NB |
230 | struct se_cmd; |
231 | ||
c66094bf HR |
232 | struct t10_alua_lba_map_member { |
233 | struct list_head lba_map_mem_list; | |
234 | int lba_map_mem_alua_state; | |
235 | int lba_map_mem_alua_pg_id; | |
236 | }; | |
237 | ||
238 | struct t10_alua_lba_map { | |
239 | u64 lba_map_first_lba; | |
240 | u64 lba_map_last_lba; | |
241 | struct list_head lba_map_list; | |
242 | struct list_head lba_map_mem_list; | |
243 | }; | |
244 | ||
c66ac9db | 245 | struct t10_alua { |
c66ac9db NB |
246 | /* ALUA Target Port Group ID */ |
247 | u16 alua_tg_pt_gps_counter; | |
248 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
249 | /* Referrals support */ |
250 | spinlock_t lba_map_lock; | |
251 | u32 lba_map_segment_size; | |
252 | u32 lba_map_segment_multiplier; | |
253 | struct list_head lba_map_list; | |
c66ac9db | 254 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 255 | struct se_device *t10_dev; |
c66ac9db NB |
256 | /* Used for default ALUA Target Port Group */ |
257 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
258 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
259 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 260 | struct list_head tg_pt_gps_list; |
e0a53e70 | 261 | }; |
c66ac9db NB |
262 | |
263 | struct t10_alua_lu_gp { | |
264 | u16 lu_gp_id; | |
265 | int lu_gp_valid_id; | |
266 | u32 lu_gp_members; | |
c66ac9db NB |
267 | atomic_t lu_gp_ref_cnt; |
268 | spinlock_t lu_gp_lock; | |
269 | struct config_group lu_gp_group; | |
e3d6f909 | 270 | struct list_head lu_gp_node; |
c66ac9db | 271 | struct list_head lu_gp_mem_list; |
e0a53e70 | 272 | }; |
c66ac9db NB |
273 | |
274 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 275 | bool lu_gp_assoc; |
c66ac9db NB |
276 | atomic_t lu_gp_mem_ref_cnt; |
277 | spinlock_t lu_gp_mem_lock; | |
278 | struct t10_alua_lu_gp *lu_gp; | |
279 | struct se_device *lu_gp_mem_dev; | |
280 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 281 | }; |
c66ac9db NB |
282 | |
283 | struct t10_alua_tg_pt_gp { | |
284 | u16 tg_pt_gp_id; | |
285 | int tg_pt_gp_valid_id; | |
c0dc941e | 286 | int tg_pt_gp_alua_supported_states; |
dfbce75a HR |
287 | int tg_pt_gp_alua_pending_state; |
288 | int tg_pt_gp_alua_previous_state; | |
c66ac9db NB |
289 | int tg_pt_gp_alua_access_status; |
290 | int tg_pt_gp_alua_access_type; | |
291 | int tg_pt_gp_nonop_delay_msecs; | |
292 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 293 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
294 | int tg_pt_gp_pref; |
295 | int tg_pt_gp_write_metadata; | |
c66ac9db NB |
296 | u32 tg_pt_gp_members; |
297 | atomic_t tg_pt_gp_alua_access_state; | |
298 | atomic_t tg_pt_gp_ref_cnt; | |
299 | spinlock_t tg_pt_gp_lock; | |
300 | struct mutex tg_pt_gp_md_mutex; | |
0fd97ccf | 301 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
302 | struct config_group tg_pt_gp_group; |
303 | struct list_head tg_pt_gp_list; | |
adf653f9 CH |
304 | struct list_head tg_pt_gp_lun_list; |
305 | struct se_lun *tg_pt_gp_alua_lun; | |
9c6e164c HR |
306 | struct se_node_acl *tg_pt_gp_alua_nacl; |
307 | struct delayed_work tg_pt_gp_transition_work; | |
308 | struct completion *tg_pt_gp_transition_complete; | |
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 { | |
e3d6f909 AG |
322 | char vendor[8]; |
323 | char model[16]; | |
324 | char revision[4]; | |
325 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | |
c66ac9db | 326 | spinlock_t t10_vpd_lock; |
0fd97ccf | 327 | struct se_device *t10_dev; |
c66ac9db NB |
328 | struct config_group t10_wwn_group; |
329 | struct list_head t10_vpd_list; | |
e0a53e70 | 330 | }; |
c66ac9db | 331 | |
c66ac9db NB |
332 | struct t10_pr_registration { |
333 | /* Used for fabrics that contain WWN+ISID */ | |
334 | #define PR_REG_ISID_LEN 16 | |
335 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
336 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
337 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
338 | /* Used during APTPL metadata reading */ | |
339 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
340 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
341 | /* Used during APTPL metadata reading */ | |
342 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
343 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
344 | u16 pr_aptpl_rpti; |
345 | u16 pr_reg_tpgt; | |
346 | /* Reservation effects all target ports */ | |
347 | int pr_reg_all_tg_pt; | |
348 | /* Activate Persistence across Target Power Loss */ | |
349 | int pr_reg_aptpl; | |
350 | int pr_res_holder; | |
351 | int pr_res_type; | |
352 | int pr_res_scope; | |
353 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 354 | bool isid_present_at_reg; |
f2d30680 HR |
355 | u64 pr_res_mapped_lun; |
356 | u64 pr_aptpl_target_lun; | |
79dc9c9e | 357 | u16 tg_pt_sep_rtpi; |
c66ac9db NB |
358 | u32 pr_res_generation; |
359 | u64 pr_reg_bin_isid; | |
360 | u64 pr_res_key; | |
361 | atomic_t pr_res_holders; | |
362 | struct se_node_acl *pr_reg_nacl; | |
79dc9c9e | 363 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
c66ac9db | 364 | struct se_dev_entry *pr_reg_deve; |
c66ac9db NB |
365 | struct list_head pr_reg_list; |
366 | struct list_head pr_reg_abort_list; | |
367 | struct list_head pr_reg_aptpl_list; | |
368 | struct list_head pr_reg_atp_list; | |
369 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 370 | }; |
c66ac9db | 371 | |
e3d6f909 | 372 | struct t10_reservation { |
c66ac9db NB |
373 | /* Reservation effects all target ports */ |
374 | int pr_all_tg_pt; | |
375 | /* Activate Persistence across Target Power Loss enabled | |
376 | * for SCSI device */ | |
377 | int pr_aptpl_active; | |
f161d4b4 | 378 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 379 | u32 pr_generation; |
c66ac9db NB |
380 | spinlock_t registration_lock; |
381 | spinlock_t aptpl_reg_lock; | |
382 | /* | |
383 | * This will always be set by one individual I_T Nexus. | |
384 | * However with all_tg_pt=1, other I_T Nexus from the | |
385 | * same initiator can access PR reg/res info on a different | |
386 | * target port. | |
387 | * | |
388 | * There is also the 'All Registrants' case, where there is | |
389 | * a single *pr_res_holder of the reservation, but all | |
390 | * registrations are considered reservation holders. | |
391 | */ | |
392 | struct se_node_acl *pr_res_holder; | |
393 | struct list_head registration_list; | |
394 | struct list_head aptpl_reg_list; | |
e0a53e70 | 395 | }; |
c66ac9db | 396 | |
c8e31f26 AG |
397 | struct se_tmr_req { |
398 | /* Task Management function to be performed */ | |
399 | u8 function; | |
400 | /* Task Management response to send */ | |
401 | u8 response; | |
402 | int call_transport; | |
403 | /* Reference to ITT that Task Mgmt should be performed */ | |
649ee054 | 404 | u64 ref_task_tag; |
c8e31f26 AG |
405 | void *fabric_tmr_ptr; |
406 | struct se_cmd *task_cmd; | |
c8e31f26 AG |
407 | struct se_device *tmr_dev; |
408 | struct se_lun *tmr_lun; | |
409 | struct list_head tmr_list; | |
410 | }; | |
411 | ||
ce65e5b9 | 412 | enum target_prot_op { |
e70beee7 NB |
413 | TARGET_PROT_NORMAL = 0, |
414 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
415 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
416 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
417 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
418 | TARGET_PROT_DIN_PASS = (1 << 4), | |
419 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
420 | }; |
421 | ||
e70beee7 NB |
422 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
423 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
424 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
425 | ||
ce65e5b9 NB |
426 | enum target_prot_type { |
427 | TARGET_DIF_TYPE0_PROT, | |
428 | TARGET_DIF_TYPE1_PROT, | |
429 | TARGET_DIF_TYPE2_PROT, | |
430 | TARGET_DIF_TYPE3_PROT, | |
431 | }; | |
432 | ||
19f9361a SG |
433 | enum target_core_dif_check { |
434 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
435 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
436 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
437 | }; | |
438 | ||
ce65e5b9 NB |
439 | struct se_dif_v1_tuple { |
440 | __be16 guard_tag; | |
441 | __be16 app_tag; | |
442 | __be32 ref_tag; | |
443 | }; | |
444 | ||
68d81f40 CH |
445 | /* for sam_task_attr */ |
446 | #define TCM_SIMPLE_TAG 0x20 | |
447 | #define TCM_HEAD_TAG 0x21 | |
448 | #define TCM_ORDERED_TAG 0x22 | |
449 | #define TCM_ACA_TAG 0x24 | |
450 | ||
c66ac9db NB |
451 | struct se_cmd { |
452 | /* SAM response code being sent to initiator */ | |
453 | u8 scsi_status; | |
454 | u8 scsi_asc; | |
455 | u8 scsi_ascq; | |
c66ac9db | 456 | u16 scsi_sense_length; |
649ee054 | 457 | u64 tag; /* SAM command identifier aka task tag */ |
c66ac9db NB |
458 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
459 | int alua_nonop_delay; | |
460 | /* See include/linux/dma-mapping.h */ | |
461 | enum dma_data_direction data_direction; | |
462 | /* For SAM Task Attribute */ | |
463 | int sam_task_attr; | |
c0add7fd NB |
464 | /* Used for se_sess->sess_tag_pool */ |
465 | unsigned int map_tag; | |
c66ac9db NB |
466 | /* Transport protocol dependent state, see transport_state_table */ |
467 | enum transport_state_table t_state; | |
5f655e8d | 468 | unsigned cmd_wait_set:1; |
b0d79946 | 469 | unsigned unknown_data_length:1; |
c66ac9db NB |
470 | /* See se_cmd_flags_table */ |
471 | u32 se_cmd_flags; | |
472 | u32 se_ordered_id; | |
473 | /* Total size in bytes associated with command */ | |
474 | u32 data_length; | |
c66ac9db | 475 | u32 residual_count; |
f2d30680 | 476 | u64 orig_fe_lun; |
c66ac9db NB |
477 | /* Persistent Reservation key */ |
478 | u64 pr_res_key; | |
c66ac9db NB |
479 | /* Used for sense data */ |
480 | void *sense_buffer; | |
5951146d | 481 | struct list_head se_delayed_node; |
07bde79a | 482 | struct list_head se_qf_node; |
c66ac9db | 483 | struct se_device *se_dev; |
c66ac9db NB |
484 | struct se_lun *se_lun; |
485 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
486 | struct se_session *se_sess; | |
487 | struct se_tmr_req *se_tmr_req; | |
a17f091d NB |
488 | struct list_head se_cmd_list; |
489 | struct completion cmd_wait_comp; | |
7481deb4 | 490 | struct kref cmd_kref; |
9ac8928e | 491 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 492 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
a82a9538 NB |
493 | sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *, |
494 | u32, enum dma_data_direction); | |
c8e63985 | 495 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool); |
07bde79a | 496 | |
a1d8b49a AG |
497 | unsigned char *t_task_cdb; |
498 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
499 | unsigned long long t_task_lba; | |
a82a9538 | 500 | unsigned int t_task_nolb; |
7d680f3b CH |
501 | unsigned int transport_state; |
502 | #define CMD_T_ABORTED (1 << 0) | |
503 | #define CMD_T_ACTIVE (1 << 1) | |
504 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
505 | #define CMD_T_SENT (1 << 4) |
506 | #define CMD_T_STOP (1 << 5) | |
4a9a6c8d NB |
507 | #define CMD_T_DEV_ACTIVE (1 << 7) |
508 | #define CMD_T_REQUEST_STOP (1 << 8) | |
509 | #define CMD_T_BUSY (1 << 9) | |
a1d8b49a AG |
510 | spinlock_t t_state_lock; |
511 | struct completion t_transport_stop_comp; | |
05d1c7c0 | 512 | |
35e0e757 CH |
513 | struct work_struct work; |
514 | ||
ec98f782 | 515 | struct scatterlist *t_data_sg; |
47e459e6 | 516 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 517 | unsigned int t_data_nents; |
47e459e6 | 518 | unsigned int t_data_nents_orig; |
4949314c | 519 | void *t_data_vmap; |
ec98f782 AG |
520 | struct scatterlist *t_bidi_data_sg; |
521 | unsigned int t_bidi_data_nents; | |
522 | ||
cf572a96 CH |
523 | struct list_head state_list; |
524 | bool state_active; | |
525 | ||
526 | /* old task stop completion, consider merging with some of the above */ | |
527 | struct completion task_stop_comp; | |
528 | ||
5787cacd CH |
529 | /* backend private data */ |
530 | void *priv; | |
5277797d NB |
531 | |
532 | /* Used for lun->lun_ref counting */ | |
5259a06e | 533 | int lun_ref_active; |
ce65e5b9 NB |
534 | |
535 | /* DIF related members */ | |
536 | enum target_prot_op prot_op; | |
537 | enum target_prot_type prot_type; | |
19f9361a | 538 | u8 prot_checks; |
ce65e5b9 NB |
539 | u32 prot_length; |
540 | u32 reftag_seed; | |
541 | struct scatterlist *t_prot_sg; | |
542 | unsigned int t_prot_nents; | |
ce65e5b9 | 543 | sense_reason_t pi_err; |
76736db3 | 544 | sector_t bad_sector; |
b5b8e298 | 545 | bool prot_pto; |
e0a53e70 | 546 | }; |
c66ac9db | 547 | |
c66ac9db NB |
548 | struct se_ua { |
549 | u8 ua_asc; | |
550 | u8 ua_ascq; | |
c66ac9db | 551 | struct list_head ua_nacl_list; |
e0a53e70 | 552 | }; |
c66ac9db NB |
553 | |
554 | struct se_node_acl { | |
555 | char initiatorname[TRANSPORT_IQN_LEN]; | |
556 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 557 | bool dynamic_node_acl; |
337c0607 | 558 | bool acl_stop:1; |
c66ac9db NB |
559 | u32 queue_depth; |
560 | u32 acl_index; | |
bffb5128 | 561 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
562 | #define MAX_ACL_TAG_SIZE 64 |
563 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
564 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
565 | atomic_t acl_pr_ref_count; | |
29a05dee | 566 | struct hlist_head lun_entry_hlist; |
c66ac9db NB |
567 | struct se_session *nacl_sess; |
568 | struct se_portal_group *se_tpg; | |
29a05dee | 569 | struct mutex lun_entry_mutex; |
c66ac9db NB |
570 | spinlock_t nacl_sess_lock; |
571 | struct config_group acl_group; | |
572 | struct config_group acl_attrib_group; | |
573 | struct config_group acl_auth_group; | |
574 | struct config_group acl_param_group; | |
12d23384 NB |
575 | struct config_group acl_fabric_stat_group; |
576 | struct config_group *acl_default_groups[5]; | |
c66ac9db NB |
577 | struct list_head acl_list; |
578 | struct list_head acl_sess_list; | |
01468346 | 579 | struct completion acl_free_comp; |
afb999ff | 580 | struct kref acl_kref; |
e0a53e70 | 581 | }; |
c66ac9db NB |
582 | |
583 | struct se_session { | |
5f655e8d | 584 | unsigned sess_tearing_down:1; |
c66ac9db | 585 | u64 sess_bin_isid; |
e70beee7 | 586 | enum target_prot_op sup_prot_ops; |
38b57f82 | 587 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
588 | struct se_node_acl *se_node_acl; |
589 | struct se_portal_group *se_tpg; | |
590 | void *fabric_sess_ptr; | |
591 | struct list_head sess_list; | |
592 | struct list_head sess_acl_list; | |
a17f091d | 593 | struct list_head sess_cmd_list; |
9b31a328 | 594 | struct list_head sess_wait_list; |
a17f091d | 595 | spinlock_t sess_cmd_lock; |
41ac82b6 | 596 | struct kref sess_kref; |
c0add7fd NB |
597 | void *sess_cmd_map; |
598 | struct percpu_ida sess_tag_pool; | |
e0a53e70 | 599 | }; |
c66ac9db | 600 | |
c66ac9db NB |
601 | struct se_device; |
602 | struct se_transform_info; | |
603 | struct scatterlist; | |
604 | ||
12d23384 NB |
605 | struct se_ml_stat_grps { |
606 | struct config_group stat_group; | |
607 | struct config_group scsi_auth_intr_group; | |
608 | struct config_group scsi_att_intr_port_group; | |
609 | }; | |
610 | ||
c66ac9db NB |
611 | struct se_lun_acl { |
612 | char initiatorname[TRANSPORT_IQN_LEN]; | |
f2d30680 | 613 | u64 mapped_lun; |
c66ac9db NB |
614 | struct se_node_acl *se_lun_nacl; |
615 | struct se_lun *se_lun; | |
c66ac9db | 616 | struct config_group se_lun_group; |
12d23384 | 617 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 618 | }; |
c66ac9db NB |
619 | |
620 | struct se_dev_entry { | |
c66ac9db | 621 | /* See transport_lunflags_table */ |
f2d30680 | 622 | u64 mapped_lun; |
c66ac9db NB |
623 | u64 pr_res_key; |
624 | u64 creation_time; | |
f2d30680 | 625 | u32 lun_flags; |
c66ac9db | 626 | u32 attach_count; |
29a05dee NB |
627 | atomic_long_t total_cmds; |
628 | atomic_long_t read_bytes; | |
629 | atomic_long_t write_bytes; | |
c66ac9db NB |
630 | atomic_t ua_count; |
631 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
29a05dee NB |
632 | struct kref pr_kref; |
633 | struct completion pr_comp; | |
634 | struct se_lun_acl __rcu *se_lun_acl; | |
c66ac9db | 635 | spinlock_t ua_lock; |
29a05dee | 636 | struct se_lun __rcu *se_lun; |
80bfdfa9 NB |
637 | #define DEF_PR_REG_ACTIVE 1 |
638 | unsigned long deve_flags; | |
c66ac9db | 639 | struct list_head alua_port_list; |
adf653f9 | 640 | struct list_head lun_link; |
c66ac9db | 641 | struct list_head ua_list; |
29a05dee NB |
642 | struct hlist_node link; |
643 | struct rcu_head rcu_head; | |
e0a53e70 | 644 | }; |
c66ac9db | 645 | |
c66ac9db | 646 | struct se_dev_attrib { |
adfa9570 | 647 | int emulate_model_alias; |
c66ac9db NB |
648 | int emulate_dpo; |
649 | int emulate_fua_write; | |
650 | int emulate_fua_read; | |
651 | int emulate_write_cache; | |
652 | int emulate_ua_intlck_ctrl; | |
653 | int emulate_tas; | |
654 | int emulate_tpu; | |
655 | int emulate_tpws; | |
0123a9ec | 656 | int emulate_caw; |
d397a445 | 657 | int emulate_3pc; |
ce65e5b9 NB |
658 | int pi_prot_format; |
659 | enum target_prot_type pi_prot_type; | |
660 | enum target_prot_type hw_pi_prot_type; | |
c66ac9db | 661 | int enforce_pr_isids; |
92404e60 | 662 | int force_pr_aptpl; |
e22a7f07 | 663 | int is_nonrot; |
5de619a3 | 664 | int emulate_rest_reord; |
c66ac9db NB |
665 | u32 hw_block_size; |
666 | u32 block_size; | |
667 | u32 hw_max_sectors; | |
c66ac9db NB |
668 | u32 optimal_sectors; |
669 | u32 hw_queue_depth; | |
670 | u32 queue_depth; | |
c66ac9db NB |
671 | u32 max_unmap_lba_count; |
672 | u32 max_unmap_block_desc_count; | |
673 | u32 unmap_granularity; | |
674 | u32 unmap_granularity_alignment; | |
773cbaf7 | 675 | u32 max_write_same_len; |
95cadace | 676 | u32 max_bytes_per_io; |
0fd97ccf | 677 | struct se_device *da_dev; |
c66ac9db | 678 | struct config_group da_group; |
e0a53e70 | 679 | }; |
c66ac9db | 680 | |
4863e525 NB |
681 | struct se_port_stat_grps { |
682 | struct config_group stat_group; | |
683 | struct config_group scsi_port_group; | |
684 | struct config_group scsi_tgt_port_group; | |
685 | struct config_group scsi_transport_group; | |
686 | }; | |
687 | ||
adf653f9 | 688 | struct scsi_port_stats { |
4cc987ea NB |
689 | atomic_long_t cmd_pdus; |
690 | atomic_long_t tx_data_octets; | |
691 | atomic_long_t rx_data_octets; | |
adf653f9 CH |
692 | }; |
693 | ||
4863e525 | 694 | struct se_lun { |
f2d30680 | 695 | u64 unpacked_lun; |
4863e525 NB |
696 | #define SE_LUN_LINK_MAGIC 0xffff7771 |
697 | u32 lun_link_magic; | |
4863e525 NB |
698 | u32 lun_access; |
699 | u32 lun_flags; | |
29a05dee | 700 | u32 lun_index; |
f2d30680 HR |
701 | |
702 | /* RELATIVE TARGET PORT IDENTIFER */ | |
703 | u16 lun_rtpi; | |
4863e525 | 704 | atomic_t lun_acl_count; |
adf653f9 CH |
705 | struct se_device __rcu *lun_se_dev; |
706 | ||
707 | struct list_head lun_deve_list; | |
708 | spinlock_t lun_deve_lock; | |
709 | ||
710 | /* ALUA state */ | |
711 | int lun_tg_pt_secondary_stat; | |
712 | int lun_tg_pt_secondary_write_md; | |
713 | atomic_t lun_tg_pt_secondary_offline; | |
714 | struct mutex lun_tg_pt_md_mutex; | |
715 | ||
716 | /* ALUA target port group linkage */ | |
717 | struct list_head lun_tg_pt_gp_link; | |
718 | struct t10_alua_tg_pt_gp *lun_tg_pt_gp; | |
719 | spinlock_t lun_tg_pt_gp_lock; | |
720 | ||
adf653f9 CH |
721 | struct se_portal_group *lun_tpg; |
722 | struct scsi_port_stats lun_stats; | |
4863e525 NB |
723 | struct config_group lun_group; |
724 | struct se_port_stat_grps port_stat_grps; | |
725 | struct completion lun_ref_comp; | |
726 | struct percpu_ref lun_ref; | |
adf653f9 | 727 | struct list_head lun_dev_link; |
6bb82612 NB |
728 | struct hlist_node link; |
729 | struct rcu_head rcu_head; | |
4863e525 NB |
730 | }; |
731 | ||
12d23384 NB |
732 | struct se_dev_stat_grps { |
733 | struct config_group stat_group; | |
734 | struct config_group scsi_dev_group; | |
735 | struct config_group scsi_tgt_dev_group; | |
736 | struct config_group scsi_lu_group; | |
737 | }; | |
738 | ||
c66ac9db | 739 | struct se_device { |
0ff87549 NB |
740 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
741 | u32 dev_link_magic; | |
c66ac9db NB |
742 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
743 | u16 dev_rpti_counter; | |
744 | /* Used for SAM Task Attribute ordering */ | |
745 | u32 dev_cur_ordered_id; | |
746 | u32 dev_flags; | |
0fd97ccf CH |
747 | #define DF_CONFIGURED 0x00000001 |
748 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
749 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
750 | #define DF_USING_UDEV_PATH 0x00000008 | |
751 | #define DF_USING_ALIAS 0x00000010 | |
c66ac9db NB |
752 | /* Physical device queue depth */ |
753 | u32 queue_depth; | |
754 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
755 | u64 dev_res_bin_isid; | |
c66ac9db | 756 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
757 | u32 dev_index; |
758 | u64 creation_time; | |
ee480683 NB |
759 | atomic_long_t num_resets; |
760 | atomic_long_t num_cmds; | |
761 | atomic_long_t read_bytes; | |
762 | atomic_long_t write_bytes; | |
c66ac9db | 763 | /* Active commands on this virtual SE device */ |
c66ac9db | 764 | atomic_t simple_cmds; |
c66ac9db | 765 | atomic_t dev_ordered_id; |
c66ac9db | 766 | atomic_t dev_ordered_sync; |
07bde79a | 767 | atomic_t dev_qf_count; |
adf653f9 | 768 | u32 export_count; |
c66ac9db | 769 | spinlock_t delayed_cmd_lock; |
c66ac9db | 770 | spinlock_t execute_task_lock; |
c66ac9db | 771 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
772 | unsigned int dev_reservation_flags; |
773 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
774 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
775 | spinlock_t se_port_lock; |
776 | spinlock_t se_tmr_lock; | |
07bde79a | 777 | spinlock_t qf_cmd_lock; |
68ff9b9b | 778 | struct semaphore caw_sem; |
c66ac9db NB |
779 | /* Used for legacy SPC-2 reservationsa */ |
780 | struct se_node_acl *dev_reserved_node_acl; | |
781 | /* Used for ALUA Logical Unit Group membership */ | |
782 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
783 | /* Used for SPC-3 Persistent Reservations */ | |
784 | struct t10_pr_registration *dev_pr_res_holder; | |
785 | struct list_head dev_sep_list; | |
786 | struct list_head dev_tmr_list; | |
af877292 | 787 | struct workqueue_struct *tmr_wq; |
07bde79a | 788 | struct work_struct qf_work_queue; |
c66ac9db | 789 | struct list_head delayed_cmd_list; |
cf572a96 | 790 | struct list_head state_list; |
07bde79a | 791 | struct list_head qf_cmd_list; |
d9ea32bf | 792 | struct list_head g_dev_node; |
c66ac9db NB |
793 | /* Pointer to associated SE HBA */ |
794 | struct se_hba *se_hba; | |
0fd97ccf CH |
795 | /* T10 Inquiry and VPD WWN Information */ |
796 | struct t10_wwn t10_wwn; | |
797 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
798 | struct t10_alua t10_alua; | |
799 | /* T10 SPC-2 + SPC-3 Reservations */ | |
800 | struct t10_reservation t10_pr; | |
801 | struct se_dev_attrib dev_attrib; | |
802 | struct config_group dev_group; | |
803 | struct config_group dev_pr_group; | |
804 | struct se_dev_stat_grps dev_stat_grps; | |
805 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
806 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
807 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
808 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db | 809 | /* Pointer to template of function pointers for transport */ |
0a06d430 | 810 | const struct target_backend_ops *transport; |
c66ac9db NB |
811 | /* Linked list for struct se_hba struct se_device list */ |
812 | struct list_head dev_list; | |
4863e525 | 813 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
814 | /* Protection Information */ |
815 | int prot_length; | |
4cc987ea NB |
816 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
817 | u32 hba_index; | |
818 | struct rcu_head rcu_head; | |
e0a53e70 | 819 | }; |
c66ac9db | 820 | |
c66ac9db NB |
821 | struct se_hba { |
822 | u16 hba_tpgt; | |
823 | u32 hba_id; | |
824 | /* See hba_flags_table */ | |
825 | u32 hba_flags; | |
826 | /* Virtual iSCSI devices attached. */ | |
827 | u32 dev_count; | |
828 | u32 hba_index; | |
c66ac9db NB |
829 | /* Pointer to transport specific host structure. */ |
830 | void *hba_ptr; | |
e3d6f909 | 831 | struct list_head hba_node; |
c66ac9db | 832 | spinlock_t device_lock; |
c66ac9db NB |
833 | struct config_group hba_group; |
834 | struct mutex hba_access_mutex; | |
0a06d430 | 835 | struct target_backend *backend; |
e0a53e70 | 836 | }; |
c66ac9db | 837 | |
c66ac9db | 838 | struct se_tpg_np { |
1f6fe7cb | 839 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 840 | struct config_group tpg_np_group; |
e0a53e70 | 841 | }; |
c66ac9db NB |
842 | |
843 | struct se_portal_group { | |
e4aae5af CH |
844 | /* |
845 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. | |
846 | * | |
847 | * Negative values can be used by fabric drivers for internal use TPGs. | |
848 | */ | |
849 | int proto_id; | |
c66ac9db NB |
850 | /* Number of ACLed Initiator Nodes for this TPG */ |
851 | u32 num_node_acls; | |
852 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
853 | atomic_t tpg_pr_ref_count; | |
854 | /* Spinlock for adding/removing ACLed Nodes */ | |
403edd78 | 855 | struct mutex acl_node_mutex; |
c66ac9db NB |
856 | /* Spinlock for adding/removing sessions */ |
857 | spinlock_t session_lock; | |
6bb82612 | 858 | struct mutex tpg_lun_mutex; |
e3d6f909 | 859 | struct list_head se_tpg_node; |
c66ac9db NB |
860 | /* linked list for initiator ACL list */ |
861 | struct list_head acl_node_list; | |
6bb82612 | 862 | struct hlist_head tpg_lun_hlist; |
adf653f9 | 863 | struct se_lun *tpg_virt_lun0; |
25985edc | 864 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
865 | struct list_head tpg_sess_list; |
866 | /* Pointer to $FABRIC_MOD dependent code */ | |
9ac8928e | 867 | const struct target_core_fabric_ops *se_tpg_tfo; |
c66ac9db NB |
868 | struct se_wwn *se_tpg_wwn; |
869 | struct config_group tpg_group; | |
e4b512e7 | 870 | struct config_group *tpg_default_groups[7]; |
c66ac9db NB |
871 | struct config_group tpg_lun_group; |
872 | struct config_group tpg_np_group; | |
873 | struct config_group tpg_acl_group; | |
874 | struct config_group tpg_attrib_group; | |
e4b512e7 | 875 | struct config_group tpg_auth_group; |
c66ac9db | 876 | struct config_group tpg_param_group; |
e0a53e70 | 877 | }; |
c66ac9db | 878 | |
c66ac9db NB |
879 | struct se_wwn { |
880 | struct target_fabric_configfs *wwn_tf; | |
881 | struct config_group wwn_group; | |
12d23384 NB |
882 | struct config_group *wwn_default_groups[2]; |
883 | struct config_group fabric_stat_group; | |
e0a53e70 | 884 | }; |
c66ac9db | 885 | |
33940d09 JE |
886 | static inline void atomic_inc_mb(atomic_t *v) |
887 | { | |
888 | smp_mb__before_atomic(); | |
889 | atomic_inc(v); | |
890 | smp_mb__after_atomic(); | |
891 | } | |
892 | ||
893 | static inline void atomic_dec_mb(atomic_t *v) | |
894 | { | |
895 | smp_mb__before_atomic(); | |
896 | atomic_dec(v); | |
897 | smp_mb__after_atomic(); | |
898 | } | |
899 | ||
c66ac9db | 900 | #endif /* TARGET_CORE_BASE_H */ |