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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 | 16 | /* Maximum Number of LUNs per Target Portal Group */ |
d0229ae3 | 17 | /* Don't raise above 511 or REPORT_LUNS needs to handle >1 page */ |
c66ac9db NB |
18 | #define TRANSPORT_MAX_LUNS_PER_TPG 256 |
19 | /* | |
8d3a8248 BVA |
20 | * Maximum size of a CDB that can be stored in se_cmd without allocating |
21 | * memory dynamically for the CDB. | |
c66ac9db NB |
22 | */ |
23 | #define TCM_MAX_COMMAND_SIZE 32 | |
24 | /* | |
25 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
26 | * defined 96, but the real limit is 252 (or 260 including the header) | |
27 | */ | |
28 | #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE | |
29 | /* Used by transport_send_check_condition_and_sense() */ | |
30 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 31 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
32 | #define SPC_DESC_TYPE_OFFSET 8 |
33 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
34 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
35 | #define SPC_ASC_KEY_OFFSET 12 |
36 | #define SPC_ASCQ_KEY_OFFSET 13 | |
37 | #define TRANSPORT_IQN_LEN 224 | |
38 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
39 | #define LU_GROUP_NAME_BUF 256 | |
40 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
41 | #define TG_PT_GROUP_NAME_BUF 256 | |
42 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 43 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
44 | /* Used by transport_generic_cmd_sequencer() */ |
45 | #define READ_BLOCK_LEN 6 | |
46 | #define READ_CAP_LEN 8 | |
47 | #define READ_POSITION_LEN 20 | |
48 | #define INQUIRY_LEN 36 | |
49 | /* Used by transport_get_inquiry_vpd_serial() */ | |
50 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
51 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
52 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
53 | ||
c4795fb2 CH |
54 | /* Attempts before moving from SHORT to LONG */ |
55 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
56 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
57 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
58 | ||
59 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
60 | ||
c4795fb2 CH |
61 | /* struct se_dev_attrib sanity values */ |
62 | /* Default max_unmap_lba_count */ | |
63 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
64 | /* Default max_unmap_block_desc_count */ | |
65 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
66 | /* Default unmap_granularity */ | |
67 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
68 | /* Default unmap_granularity_alignment */ | |
69 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
773cbaf7 NB |
70 | /* Default max_write_same_len, disabled by default */ |
71 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
72 | /* Use a model alias based on the configfs backend device name */ |
73 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
74 | /* Emulation for Direct Page Out */ |
75 | #define DA_EMULATE_DPO 0 | |
76 | /* Emulation for Forced Unit Access WRITEs */ | |
77 | #define DA_EMULATE_FUA_WRITE 1 | |
78 | /* Emulation for Forced Unit Access READs */ | |
79 | #define DA_EMULATE_FUA_READ 0 | |
80 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ | |
81 | #define DA_EMULATE_WRITE_CACHE 0 | |
82 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
83 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
84 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
85 | #define DA_EMULATE_TAS 1 | |
86 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
87 | #define DA_EMULATE_TPU 0 | |
88 | /* | |
89 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
90 | * block/blk-lib.c:blkdev_issue_discard() | |
91 | */ | |
92 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
93 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
94 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
95 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
96 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 97 | /* No Emulation for PSCSI by default */ |
c4795fb2 CH |
98 | #define DA_EMULATE_ALUA 0 |
99 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | |
100 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
101 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
102 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
103 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
104 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
105 | /* By default don't report non-rotating (solid state) medium */ | |
106 | #define DA_IS_NONROT 0 | |
107 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
108 | #define DA_EMULATE_REST_REORD 0 | |
109 | ||
f82f320e | 110 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 111 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 112 | #define SE_SENSE_BUF 96 |
c4795fb2 | 113 | |
c66ac9db NB |
114 | /* struct se_hba->hba_flags */ |
115 | enum hba_flags_table { | |
116 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
117 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
118 | }; | |
119 | ||
120 | /* struct se_lun->lun_status */ | |
121 | enum transport_lun_status_table { | |
122 | TRANSPORT_LUN_STATUS_FREE = 0, | |
123 | TRANSPORT_LUN_STATUS_ACTIVE = 1, | |
124 | }; | |
125 | ||
126 | /* struct se_portal_group->se_tpg_type */ | |
127 | enum transport_tpg_type_table { | |
128 | TRANSPORT_TPG_TYPE_NORMAL = 0, | |
129 | TRANSPORT_TPG_TYPE_DISCOVERY = 1, | |
130 | }; | |
131 | ||
c66ac9db NB |
132 | /* Special transport agnostic struct se_cmd->t_states */ |
133 | enum transport_state_table { | |
134 | TRANSPORT_NO_STATE = 0, | |
135 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 136 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 137 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 138 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 139 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 140 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 141 | TRANSPORT_COMPLETE_QF_OK = 19, |
c66ac9db NB |
142 | }; |
143 | ||
144 | /* Used for struct se_cmd->se_cmd_flags */ | |
145 | enum se_cmd_flags_table { | |
146 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
147 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
148 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
149 | SCF_SCSI_DATA_CDB = 0x00000008, |
150 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
151 | SCF_FUA = 0x00000080, |
152 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
153 | SCF_BIDI = 0x00000400, |
154 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
155 | SCF_OVERFLOW_BIT = 0x00001000, | |
156 | SCF_UNDERFLOW_BIT = 0x00002000, | |
68259b5a | 157 | SCF_SEND_DELAYED_TAS = 0x00004000, |
64f1db38 | 158 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 | 159 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
a82a9538 NB |
160 | SCF_COMPARE_AND_WRITE = 0x00080000, |
161 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, | |
c66ac9db NB |
162 | }; |
163 | ||
164 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ | |
165 | enum transport_lunflags_table { | |
166 | TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00, | |
167 | TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01, | |
168 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x02, | |
169 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, | |
170 | }; | |
171 | ||
c66ac9db | 172 | /* |
de103c93 | 173 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
174 | * to signal which ASC/ASCQ sense payload should be built. |
175 | */ | |
de103c93 CH |
176 | typedef unsigned __bitwise__ sense_reason_t; |
177 | ||
c66ac9db | 178 | enum tcm_sense_reason_table { |
de103c93 | 179 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 180 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
181 | TCM_NON_EXISTENT_LUN = R(0x01), |
182 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
183 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
184 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
185 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
186 | TCM_SNACK_REJECTED = R(0x06), | |
187 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
188 | TCM_INVALID_CDB_FIELD = R(0x08), | |
189 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
190 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
191 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
192 | TCM_WRITE_PROTECTED = R(0x0c), | |
193 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
194 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
195 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), | |
196 | TCM_RESERVATION_CONFLICT = R(0x10), | |
197 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
198 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 199 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 200 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
201 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
202 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
203 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
de103c93 | 204 | #undef R |
c66ac9db NB |
205 | }; |
206 | ||
a6360785 NB |
207 | enum target_sc_flags_table { |
208 | TARGET_SCF_BIDI_OP = 0x01, | |
209 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 210 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
a6360785 NB |
211 | }; |
212 | ||
c4795fb2 CH |
213 | /* fabric independent task management function values */ |
214 | enum tcm_tmreq_table { | |
215 | TMR_ABORT_TASK = 1, | |
216 | TMR_ABORT_TASK_SET = 2, | |
217 | TMR_CLEAR_ACA = 3, | |
218 | TMR_CLEAR_TASK_SET = 4, | |
219 | TMR_LUN_RESET = 5, | |
220 | TMR_TARGET_WARM_RESET = 6, | |
221 | TMR_TARGET_COLD_RESET = 7, | |
c4795fb2 CH |
222 | }; |
223 | ||
224 | /* fabric independent task management response values */ | |
225 | enum tcm_tmrsp_table { | |
a314d700 | 226 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
227 | TMR_FUNCTION_COMPLETE = 1, |
228 | TMR_TASK_DOES_NOT_EXIST = 2, | |
229 | TMR_LUN_DOES_NOT_EXIST = 3, | |
230 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
231 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
232 | }; |
233 | ||
e89d15ee NB |
234 | /* |
235 | * Used for target SCSI statistics | |
236 | */ | |
237 | typedef enum { | |
238 | SCSI_INST_INDEX, | |
239 | SCSI_DEVICE_INDEX, | |
240 | SCSI_AUTH_INTR_INDEX, | |
241 | SCSI_INDEX_TYPE_MAX | |
242 | } scsi_index_t; | |
243 | ||
c66ac9db NB |
244 | struct se_cmd; |
245 | ||
c66094bf HR |
246 | struct t10_alua_lba_map_member { |
247 | struct list_head lba_map_mem_list; | |
248 | int lba_map_mem_alua_state; | |
249 | int lba_map_mem_alua_pg_id; | |
250 | }; | |
251 | ||
252 | struct t10_alua_lba_map { | |
253 | u64 lba_map_first_lba; | |
254 | u64 lba_map_last_lba; | |
255 | struct list_head lba_map_list; | |
256 | struct list_head lba_map_mem_list; | |
257 | }; | |
258 | ||
c66ac9db | 259 | struct t10_alua { |
c66ac9db NB |
260 | /* ALUA Target Port Group ID */ |
261 | u16 alua_tg_pt_gps_counter; | |
262 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
263 | /* Referrals support */ |
264 | spinlock_t lba_map_lock; | |
265 | u32 lba_map_segment_size; | |
266 | u32 lba_map_segment_multiplier; | |
267 | struct list_head lba_map_list; | |
c66ac9db | 268 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 269 | struct se_device *t10_dev; |
c66ac9db NB |
270 | /* Used for default ALUA Target Port Group */ |
271 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
272 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
273 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 274 | struct list_head tg_pt_gps_list; |
e0a53e70 | 275 | }; |
c66ac9db NB |
276 | |
277 | struct t10_alua_lu_gp { | |
278 | u16 lu_gp_id; | |
279 | int lu_gp_valid_id; | |
280 | u32 lu_gp_members; | |
c66ac9db NB |
281 | atomic_t lu_gp_ref_cnt; |
282 | spinlock_t lu_gp_lock; | |
283 | struct config_group lu_gp_group; | |
e3d6f909 | 284 | struct list_head lu_gp_node; |
c66ac9db | 285 | struct list_head lu_gp_mem_list; |
e0a53e70 | 286 | }; |
c66ac9db NB |
287 | |
288 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 289 | bool lu_gp_assoc; |
c66ac9db NB |
290 | atomic_t lu_gp_mem_ref_cnt; |
291 | spinlock_t lu_gp_mem_lock; | |
292 | struct t10_alua_lu_gp *lu_gp; | |
293 | struct se_device *lu_gp_mem_dev; | |
294 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 295 | }; |
c66ac9db NB |
296 | |
297 | struct t10_alua_tg_pt_gp { | |
298 | u16 tg_pt_gp_id; | |
299 | int tg_pt_gp_valid_id; | |
c0dc941e | 300 | int tg_pt_gp_alua_supported_states; |
dfbce75a HR |
301 | int tg_pt_gp_alua_pending_state; |
302 | int tg_pt_gp_alua_previous_state; | |
c66ac9db NB |
303 | int tg_pt_gp_alua_access_status; |
304 | int tg_pt_gp_alua_access_type; | |
305 | int tg_pt_gp_nonop_delay_msecs; | |
306 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 307 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
308 | int tg_pt_gp_pref; |
309 | int tg_pt_gp_write_metadata; | |
c66ac9db NB |
310 | u32 tg_pt_gp_members; |
311 | atomic_t tg_pt_gp_alua_access_state; | |
312 | atomic_t tg_pt_gp_ref_cnt; | |
313 | spinlock_t tg_pt_gp_lock; | |
314 | struct mutex tg_pt_gp_md_mutex; | |
0fd97ccf | 315 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
316 | struct config_group tg_pt_gp_group; |
317 | struct list_head tg_pt_gp_list; | |
318 | struct list_head tg_pt_gp_mem_list; | |
9c6e164c HR |
319 | struct se_port *tg_pt_gp_alua_port; |
320 | struct se_node_acl *tg_pt_gp_alua_nacl; | |
321 | struct delayed_work tg_pt_gp_transition_work; | |
322 | struct completion *tg_pt_gp_transition_complete; | |
e0a53e70 | 323 | }; |
c66ac9db NB |
324 | |
325 | struct t10_alua_tg_pt_gp_member { | |
5dd7ed2e | 326 | bool tg_pt_gp_assoc; |
c66ac9db NB |
327 | atomic_t tg_pt_gp_mem_ref_cnt; |
328 | spinlock_t tg_pt_gp_mem_lock; | |
329 | struct t10_alua_tg_pt_gp *tg_pt_gp; | |
330 | struct se_port *tg_pt; | |
331 | struct list_head tg_pt_gp_mem_list; | |
e0a53e70 | 332 | }; |
c66ac9db NB |
333 | |
334 | struct t10_vpd { | |
335 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
336 | int protocol_identifier_set; | |
337 | u32 protocol_identifier; | |
338 | u32 device_identifier_code_set; | |
339 | u32 association; | |
340 | u32 device_identifier_type; | |
341 | struct list_head vpd_list; | |
e0a53e70 | 342 | }; |
c66ac9db NB |
343 | |
344 | struct t10_wwn { | |
e3d6f909 AG |
345 | char vendor[8]; |
346 | char model[16]; | |
347 | char revision[4]; | |
348 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | |
c66ac9db | 349 | spinlock_t t10_vpd_lock; |
0fd97ccf | 350 | struct se_device *t10_dev; |
c66ac9db NB |
351 | struct config_group t10_wwn_group; |
352 | struct list_head t10_vpd_list; | |
e0a53e70 | 353 | }; |
c66ac9db | 354 | |
c66ac9db NB |
355 | struct t10_pr_registration { |
356 | /* Used for fabrics that contain WWN+ISID */ | |
357 | #define PR_REG_ISID_LEN 16 | |
358 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
359 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
360 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
361 | /* Used during APTPL metadata reading */ | |
362 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
363 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
364 | /* Used during APTPL metadata reading */ | |
365 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
366 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
367 | u16 pr_aptpl_rpti; |
368 | u16 pr_reg_tpgt; | |
369 | /* Reservation effects all target ports */ | |
370 | int pr_reg_all_tg_pt; | |
371 | /* Activate Persistence across Target Power Loss */ | |
372 | int pr_reg_aptpl; | |
373 | int pr_res_holder; | |
374 | int pr_res_type; | |
375 | int pr_res_scope; | |
376 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 377 | bool isid_present_at_reg; |
c66ac9db NB |
378 | u32 pr_res_mapped_lun; |
379 | u32 pr_aptpl_target_lun; | |
380 | u32 pr_res_generation; | |
381 | u64 pr_reg_bin_isid; | |
382 | u64 pr_res_key; | |
383 | atomic_t pr_res_holders; | |
384 | struct se_node_acl *pr_reg_nacl; | |
385 | struct se_dev_entry *pr_reg_deve; | |
386 | struct se_lun *pr_reg_tg_pt_lun; | |
387 | struct list_head pr_reg_list; | |
388 | struct list_head pr_reg_abort_list; | |
389 | struct list_head pr_reg_aptpl_list; | |
390 | struct list_head pr_reg_atp_list; | |
391 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 392 | }; |
c66ac9db | 393 | |
e3d6f909 | 394 | struct t10_reservation { |
c66ac9db NB |
395 | /* Reservation effects all target ports */ |
396 | int pr_all_tg_pt; | |
397 | /* Activate Persistence across Target Power Loss enabled | |
398 | * for SCSI device */ | |
399 | int pr_aptpl_active; | |
f161d4b4 | 400 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 401 | u32 pr_generation; |
c66ac9db NB |
402 | spinlock_t registration_lock; |
403 | spinlock_t aptpl_reg_lock; | |
404 | /* | |
405 | * This will always be set by one individual I_T Nexus. | |
406 | * However with all_tg_pt=1, other I_T Nexus from the | |
407 | * same initiator can access PR reg/res info on a different | |
408 | * target port. | |
409 | * | |
410 | * There is also the 'All Registrants' case, where there is | |
411 | * a single *pr_res_holder of the reservation, but all | |
412 | * registrations are considered reservation holders. | |
413 | */ | |
414 | struct se_node_acl *pr_res_holder; | |
415 | struct list_head registration_list; | |
416 | struct list_head aptpl_reg_list; | |
e0a53e70 | 417 | }; |
c66ac9db | 418 | |
c8e31f26 AG |
419 | struct se_tmr_req { |
420 | /* Task Management function to be performed */ | |
421 | u8 function; | |
422 | /* Task Management response to send */ | |
423 | u8 response; | |
424 | int call_transport; | |
425 | /* Reference to ITT that Task Mgmt should be performed */ | |
426 | u32 ref_task_tag; | |
c8e31f26 AG |
427 | void *fabric_tmr_ptr; |
428 | struct se_cmd *task_cmd; | |
c8e31f26 AG |
429 | struct se_device *tmr_dev; |
430 | struct se_lun *tmr_lun; | |
431 | struct list_head tmr_list; | |
432 | }; | |
433 | ||
ce65e5b9 | 434 | enum target_prot_op { |
e70beee7 NB |
435 | TARGET_PROT_NORMAL = 0, |
436 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
437 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
438 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
439 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
440 | TARGET_PROT_DIN_PASS = (1 << 4), | |
441 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
442 | }; |
443 | ||
e70beee7 NB |
444 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
445 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
446 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
447 | ||
ce65e5b9 NB |
448 | enum target_prot_type { |
449 | TARGET_DIF_TYPE0_PROT, | |
450 | TARGET_DIF_TYPE1_PROT, | |
451 | TARGET_DIF_TYPE2_PROT, | |
452 | TARGET_DIF_TYPE3_PROT, | |
453 | }; | |
454 | ||
19f9361a SG |
455 | enum target_core_dif_check { |
456 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
457 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
458 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
459 | }; | |
460 | ||
ce65e5b9 NB |
461 | struct se_dif_v1_tuple { |
462 | __be16 guard_tag; | |
463 | __be16 app_tag; | |
464 | __be32 ref_tag; | |
465 | }; | |
466 | ||
68d81f40 CH |
467 | /* for sam_task_attr */ |
468 | #define TCM_SIMPLE_TAG 0x20 | |
469 | #define TCM_HEAD_TAG 0x21 | |
470 | #define TCM_ORDERED_TAG 0x22 | |
471 | #define TCM_ACA_TAG 0x24 | |
472 | ||
c66ac9db NB |
473 | struct se_cmd { |
474 | /* SAM response code being sent to initiator */ | |
475 | u8 scsi_status; | |
476 | u8 scsi_asc; | |
477 | u8 scsi_ascq; | |
c66ac9db NB |
478 | u16 scsi_sense_length; |
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; | |
c66ac9db NB |
487 | /* Transport protocol dependent state, see transport_state_table */ |
488 | enum transport_state_table t_state; | |
5f655e8d | 489 | unsigned cmd_wait_set:1; |
b0d79946 | 490 | unsigned unknown_data_length:1; |
c66ac9db NB |
491 | /* See se_cmd_flags_table */ |
492 | u32 se_cmd_flags; | |
493 | u32 se_ordered_id; | |
494 | /* Total size in bytes associated with command */ | |
495 | u32 data_length; | |
c66ac9db NB |
496 | u32 residual_count; |
497 | u32 orig_fe_lun; | |
498 | /* Persistent Reservation key */ | |
499 | u64 pr_res_key; | |
c66ac9db NB |
500 | /* Used for sense data */ |
501 | void *sense_buffer; | |
5951146d | 502 | struct list_head se_delayed_node; |
07bde79a | 503 | struct list_head se_qf_node; |
c66ac9db NB |
504 | struct se_device *se_dev; |
505 | struct se_dev_entry *se_deve; | |
c66ac9db NB |
506 | struct se_lun *se_lun; |
507 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
508 | struct se_session *se_sess; | |
509 | struct se_tmr_req *se_tmr_req; | |
a17f091d NB |
510 | struct list_head se_cmd_list; |
511 | struct completion cmd_wait_comp; | |
7481deb4 | 512 | struct kref cmd_kref; |
9ac8928e | 513 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 514 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
a82a9538 NB |
515 | sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *, |
516 | u32, enum dma_data_direction); | |
c8e63985 | 517 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool); |
07bde79a | 518 | |
a1d8b49a AG |
519 | unsigned char *t_task_cdb; |
520 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
521 | unsigned long long t_task_lba; | |
a82a9538 | 522 | unsigned int t_task_nolb; |
7d680f3b CH |
523 | unsigned int transport_state; |
524 | #define CMD_T_ABORTED (1 << 0) | |
525 | #define CMD_T_ACTIVE (1 << 1) | |
526 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
527 | #define CMD_T_SENT (1 << 4) |
528 | #define CMD_T_STOP (1 << 5) | |
4a9a6c8d NB |
529 | #define CMD_T_DEV_ACTIVE (1 << 7) |
530 | #define CMD_T_REQUEST_STOP (1 << 8) | |
531 | #define CMD_T_BUSY (1 << 9) | |
a1d8b49a AG |
532 | spinlock_t t_state_lock; |
533 | struct completion t_transport_stop_comp; | |
05d1c7c0 | 534 | |
35e0e757 CH |
535 | struct work_struct work; |
536 | ||
ec98f782 | 537 | struct scatterlist *t_data_sg; |
47e459e6 | 538 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 539 | unsigned int t_data_nents; |
47e459e6 | 540 | unsigned int t_data_nents_orig; |
4949314c | 541 | void *t_data_vmap; |
ec98f782 AG |
542 | struct scatterlist *t_bidi_data_sg; |
543 | unsigned int t_bidi_data_nents; | |
544 | ||
cf572a96 CH |
545 | struct list_head state_list; |
546 | bool state_active; | |
547 | ||
548 | /* old task stop completion, consider merging with some of the above */ | |
549 | struct completion task_stop_comp; | |
550 | ||
5787cacd CH |
551 | /* backend private data */ |
552 | void *priv; | |
5277797d NB |
553 | |
554 | /* Used for lun->lun_ref counting */ | |
5259a06e | 555 | int lun_ref_active; |
ce65e5b9 NB |
556 | |
557 | /* DIF related members */ | |
558 | enum target_prot_op prot_op; | |
559 | enum target_prot_type prot_type; | |
19f9361a | 560 | u8 prot_checks; |
ce65e5b9 NB |
561 | u32 prot_length; |
562 | u32 reftag_seed; | |
563 | struct scatterlist *t_prot_sg; | |
564 | unsigned int t_prot_nents; | |
ce65e5b9 | 565 | sense_reason_t pi_err; |
76736db3 | 566 | sector_t bad_sector; |
b5b8e298 | 567 | bool prot_pto; |
e0a53e70 | 568 | }; |
c66ac9db | 569 | |
c66ac9db NB |
570 | struct se_ua { |
571 | u8 ua_asc; | |
572 | u8 ua_ascq; | |
573 | struct se_node_acl *ua_nacl; | |
c66ac9db | 574 | struct list_head ua_nacl_list; |
e0a53e70 | 575 | }; |
c66ac9db NB |
576 | |
577 | struct se_node_acl { | |
578 | char initiatorname[TRANSPORT_IQN_LEN]; | |
579 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 580 | bool dynamic_node_acl; |
337c0607 | 581 | bool acl_stop:1; |
c66ac9db NB |
582 | u32 queue_depth; |
583 | u32 acl_index; | |
bffb5128 | 584 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
585 | #define MAX_ACL_TAG_SIZE 64 |
586 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
587 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
588 | atomic_t acl_pr_ref_count; | |
f2083241 | 589 | struct se_dev_entry **device_list; |
c66ac9db NB |
590 | struct se_session *nacl_sess; |
591 | struct se_portal_group *se_tpg; | |
592 | spinlock_t device_list_lock; | |
593 | spinlock_t nacl_sess_lock; | |
594 | struct config_group acl_group; | |
595 | struct config_group acl_attrib_group; | |
596 | struct config_group acl_auth_group; | |
597 | struct config_group acl_param_group; | |
12d23384 NB |
598 | struct config_group acl_fabric_stat_group; |
599 | struct config_group *acl_default_groups[5]; | |
c66ac9db NB |
600 | struct list_head acl_list; |
601 | struct list_head acl_sess_list; | |
01468346 | 602 | struct completion acl_free_comp; |
afb999ff | 603 | struct kref acl_kref; |
e0a53e70 | 604 | }; |
c66ac9db NB |
605 | |
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; | |
614 | struct list_head sess_list; | |
615 | struct list_head sess_acl_list; | |
a17f091d | 616 | struct list_head sess_cmd_list; |
9b31a328 | 617 | struct list_head sess_wait_list; |
a17f091d | 618 | spinlock_t sess_cmd_lock; |
41ac82b6 | 619 | struct kref sess_kref; |
c0add7fd NB |
620 | void *sess_cmd_map; |
621 | struct percpu_ida 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 NB |
634 | struct se_lun_acl { |
635 | char initiatorname[TRANSPORT_IQN_LEN]; | |
636 | u32 mapped_lun; | |
637 | struct se_node_acl *se_lun_nacl; | |
638 | struct se_lun *se_lun; | |
639 | struct list_head lacl_list; | |
640 | struct config_group se_lun_group; | |
12d23384 | 641 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 642 | }; |
c66ac9db NB |
643 | |
644 | struct se_dev_entry { | |
5dd7ed2e | 645 | bool def_pr_registered; |
c66ac9db NB |
646 | /* See transport_lunflags_table */ |
647 | u32 lun_flags; | |
c66ac9db | 648 | u32 mapped_lun; |
c66ac9db | 649 | u32 total_cmds; |
c66ac9db NB |
650 | u64 pr_res_key; |
651 | u64 creation_time; | |
652 | u32 attach_count; | |
653 | u64 read_bytes; | |
654 | u64 write_bytes; | |
655 | atomic_t ua_count; | |
656 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
657 | atomic_t pr_ref_count; | |
658 | struct se_lun_acl *se_lun_acl; | |
659 | spinlock_t ua_lock; | |
660 | struct se_lun *se_lun; | |
661 | struct list_head alua_port_list; | |
662 | struct list_head ua_list; | |
e0a53e70 | 663 | }; |
c66ac9db | 664 | |
c66ac9db | 665 | struct se_dev_attrib { |
adfa9570 | 666 | int emulate_model_alias; |
c66ac9db NB |
667 | int emulate_dpo; |
668 | int emulate_fua_write; | |
669 | int emulate_fua_read; | |
670 | int emulate_write_cache; | |
671 | int emulate_ua_intlck_ctrl; | |
672 | int emulate_tas; | |
673 | int emulate_tpu; | |
674 | int emulate_tpws; | |
0123a9ec | 675 | int emulate_caw; |
d397a445 | 676 | int emulate_3pc; |
ce65e5b9 NB |
677 | int pi_prot_format; |
678 | enum target_prot_type pi_prot_type; | |
679 | enum target_prot_type hw_pi_prot_type; | |
c66ac9db | 680 | int enforce_pr_isids; |
92404e60 | 681 | int force_pr_aptpl; |
e22a7f07 | 682 | int is_nonrot; |
5de619a3 | 683 | int emulate_rest_reord; |
c66ac9db NB |
684 | u32 hw_block_size; |
685 | u32 block_size; | |
686 | u32 hw_max_sectors; | |
c66ac9db NB |
687 | u32 optimal_sectors; |
688 | u32 hw_queue_depth; | |
689 | u32 queue_depth; | |
c66ac9db NB |
690 | u32 max_unmap_lba_count; |
691 | u32 max_unmap_block_desc_count; | |
692 | u32 unmap_granularity; | |
693 | u32 unmap_granularity_alignment; | |
773cbaf7 | 694 | u32 max_write_same_len; |
95cadace | 695 | u32 max_bytes_per_io; |
0fd97ccf | 696 | struct se_device *da_dev; |
c66ac9db | 697 | struct config_group da_group; |
e0a53e70 | 698 | }; |
c66ac9db | 699 | |
4863e525 NB |
700 | struct se_port_stat_grps { |
701 | struct config_group stat_group; | |
702 | struct config_group scsi_port_group; | |
703 | struct config_group scsi_tgt_port_group; | |
704 | struct config_group scsi_transport_group; | |
705 | }; | |
706 | ||
707 | struct se_lun { | |
708 | #define SE_LUN_LINK_MAGIC 0xffff7771 | |
709 | u32 lun_link_magic; | |
710 | /* See transport_lun_status_table */ | |
711 | enum transport_lun_status_table lun_status; | |
712 | u32 lun_access; | |
713 | u32 lun_flags; | |
714 | u32 unpacked_lun; | |
715 | atomic_t lun_acl_count; | |
716 | spinlock_t lun_acl_lock; | |
717 | spinlock_t lun_sep_lock; | |
718 | struct completion lun_shutdown_comp; | |
719 | struct list_head lun_acl_list; | |
720 | struct se_device *lun_se_dev; | |
721 | struct se_port *lun_sep; | |
722 | struct config_group lun_group; | |
723 | struct se_port_stat_grps port_stat_grps; | |
724 | struct completion lun_ref_comp; | |
725 | struct percpu_ref lun_ref; | |
726 | }; | |
727 | ||
12d23384 NB |
728 | struct se_dev_stat_grps { |
729 | struct config_group stat_group; | |
730 | struct config_group scsi_dev_group; | |
731 | struct config_group scsi_tgt_dev_group; | |
732 | struct config_group scsi_lu_group; | |
733 | }; | |
734 | ||
c66ac9db | 735 | struct se_device { |
0ff87549 NB |
736 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
737 | u32 dev_link_magic; | |
c66ac9db NB |
738 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
739 | u16 dev_rpti_counter; | |
740 | /* Used for SAM Task Attribute ordering */ | |
741 | u32 dev_cur_ordered_id; | |
742 | u32 dev_flags; | |
0fd97ccf CH |
743 | #define DF_CONFIGURED 0x00000001 |
744 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
745 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
746 | #define DF_USING_UDEV_PATH 0x00000008 | |
747 | #define DF_USING_ALIAS 0x00000010 | |
c66ac9db | 748 | u32 dev_port_count; |
c66ac9db NB |
749 | /* Physical device queue depth */ |
750 | u32 queue_depth; | |
751 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
752 | u64 dev_res_bin_isid; | |
c66ac9db | 753 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
754 | u32 dev_index; |
755 | u64 creation_time; | |
ee480683 NB |
756 | atomic_long_t num_resets; |
757 | atomic_long_t num_cmds; | |
758 | atomic_long_t read_bytes; | |
759 | atomic_long_t write_bytes; | |
c66ac9db | 760 | /* Active commands on this virtual SE device */ |
c66ac9db | 761 | atomic_t simple_cmds; |
c66ac9db | 762 | atomic_t dev_ordered_id; |
c66ac9db | 763 | atomic_t dev_ordered_sync; |
07bde79a | 764 | atomic_t dev_qf_count; |
0fd97ccf | 765 | int export_count; |
c66ac9db | 766 | spinlock_t delayed_cmd_lock; |
c66ac9db | 767 | spinlock_t execute_task_lock; |
c66ac9db | 768 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
769 | unsigned int dev_reservation_flags; |
770 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
771 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
772 | spinlock_t se_port_lock; |
773 | spinlock_t se_tmr_lock; | |
07bde79a | 774 | spinlock_t qf_cmd_lock; |
68ff9b9b | 775 | struct semaphore caw_sem; |
c66ac9db NB |
776 | /* Used for legacy SPC-2 reservationsa */ |
777 | struct se_node_acl *dev_reserved_node_acl; | |
778 | /* Used for ALUA Logical Unit Group membership */ | |
779 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
780 | /* Used for SPC-3 Persistent Reservations */ | |
781 | struct t10_pr_registration *dev_pr_res_holder; | |
782 | struct list_head dev_sep_list; | |
783 | struct list_head dev_tmr_list; | |
af877292 | 784 | struct workqueue_struct *tmr_wq; |
07bde79a | 785 | struct work_struct qf_work_queue; |
c66ac9db | 786 | struct list_head delayed_cmd_list; |
cf572a96 | 787 | struct list_head state_list; |
07bde79a | 788 | struct list_head qf_cmd_list; |
d9ea32bf | 789 | struct list_head g_dev_node; |
c66ac9db NB |
790 | /* Pointer to associated SE HBA */ |
791 | struct se_hba *se_hba; | |
0fd97ccf CH |
792 | /* T10 Inquiry and VPD WWN Information */ |
793 | struct t10_wwn t10_wwn; | |
794 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
795 | struct t10_alua t10_alua; | |
796 | /* T10 SPC-2 + SPC-3 Reservations */ | |
797 | struct t10_reservation t10_pr; | |
798 | struct se_dev_attrib dev_attrib; | |
799 | struct config_group dev_group; | |
800 | struct config_group dev_pr_group; | |
801 | struct se_dev_stat_grps dev_stat_grps; | |
802 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
803 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
804 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
805 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db NB |
806 | /* Pointer to template of function pointers for transport */ |
807 | struct se_subsystem_api *transport; | |
808 | /* Linked list for struct se_hba struct se_device list */ | |
809 | struct list_head dev_list; | |
4863e525 | 810 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
811 | /* Protection Information */ |
812 | int prot_length; | |
e0a53e70 | 813 | }; |
c66ac9db | 814 | |
c66ac9db NB |
815 | struct se_hba { |
816 | u16 hba_tpgt; | |
817 | u32 hba_id; | |
818 | /* See hba_flags_table */ | |
819 | u32 hba_flags; | |
820 | /* Virtual iSCSI devices attached. */ | |
821 | u32 dev_count; | |
822 | u32 hba_index; | |
c66ac9db NB |
823 | /* Pointer to transport specific host structure. */ |
824 | void *hba_ptr; | |
e3d6f909 | 825 | struct list_head hba_node; |
c66ac9db | 826 | spinlock_t device_lock; |
c66ac9db NB |
827 | struct config_group hba_group; |
828 | struct mutex hba_access_mutex; | |
829 | struct se_subsystem_api *transport; | |
e0a53e70 | 830 | }; |
c66ac9db | 831 | |
e89d15ee NB |
832 | struct scsi_port_stats { |
833 | u64 cmd_pdus; | |
834 | u64 tx_data_octets; | |
835 | u64 rx_data_octets; | |
e0a53e70 | 836 | }; |
e89d15ee | 837 | |
c66ac9db NB |
838 | struct se_port { |
839 | /* RELATIVE TARGET PORT IDENTIFER */ | |
840 | u16 sep_rtpi; | |
841 | int sep_tg_pt_secondary_stat; | |
842 | int sep_tg_pt_secondary_write_md; | |
843 | u32 sep_index; | |
844 | struct scsi_port_stats sep_stats; | |
845 | /* Used for ALUA Target Port Groups membership */ | |
c66ac9db NB |
846 | atomic_t sep_tg_pt_secondary_offline; |
847 | /* Used for PR ALL_TG_PT=1 */ | |
848 | atomic_t sep_tg_pt_ref_cnt; | |
849 | spinlock_t sep_alua_lock; | |
850 | struct mutex sep_tg_pt_md_mutex; | |
851 | struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem; | |
852 | struct se_lun *sep_lun; | |
853 | struct se_portal_group *sep_tpg; | |
854 | struct list_head sep_alua_list; | |
855 | struct list_head sep_list; | |
e0a53e70 | 856 | }; |
c66ac9db NB |
857 | |
858 | struct se_tpg_np { | |
1f6fe7cb | 859 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 860 | struct config_group tpg_np_group; |
e0a53e70 | 861 | }; |
c66ac9db NB |
862 | |
863 | struct se_portal_group { | |
864 | /* Type of target portal group, see transport_tpg_type_table */ | |
865 | enum transport_tpg_type_table se_tpg_type; | |
866 | /* Number of ACLed Initiator Nodes for this TPG */ | |
867 | u32 num_node_acls; | |
868 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
869 | atomic_t tpg_pr_ref_count; | |
870 | /* Spinlock for adding/removing ACLed Nodes */ | |
871 | spinlock_t acl_node_lock; | |
872 | /* Spinlock for adding/removing sessions */ | |
873 | spinlock_t session_lock; | |
874 | spinlock_t tpg_lun_lock; | |
875 | /* Pointer to $FABRIC_MOD portal group */ | |
876 | void *se_tpg_fabric_ptr; | |
e3d6f909 | 877 | struct list_head se_tpg_node; |
c66ac9db NB |
878 | /* linked list for initiator ACL list */ |
879 | struct list_head acl_node_list; | |
4a5a75f3 | 880 | struct se_lun **tpg_lun_list; |
c66ac9db | 881 | struct se_lun tpg_virt_lun0; |
25985edc | 882 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
883 | struct list_head tpg_sess_list; |
884 | /* Pointer to $FABRIC_MOD dependent code */ | |
9ac8928e | 885 | const struct target_core_fabric_ops *se_tpg_tfo; |
c66ac9db NB |
886 | struct se_wwn *se_tpg_wwn; |
887 | struct config_group tpg_group; | |
e4b512e7 | 888 | struct config_group *tpg_default_groups[7]; |
c66ac9db NB |
889 | struct config_group tpg_lun_group; |
890 | struct config_group tpg_np_group; | |
891 | struct config_group tpg_acl_group; | |
892 | struct config_group tpg_attrib_group; | |
e4b512e7 | 893 | struct config_group tpg_auth_group; |
c66ac9db | 894 | struct config_group tpg_param_group; |
e0a53e70 | 895 | }; |
c66ac9db | 896 | |
c66ac9db NB |
897 | struct se_wwn { |
898 | struct target_fabric_configfs *wwn_tf; | |
899 | struct config_group wwn_group; | |
12d23384 NB |
900 | struct config_group *wwn_default_groups[2]; |
901 | struct config_group fabric_stat_group; | |
e0a53e70 | 902 | }; |
c66ac9db | 903 | |
33940d09 JE |
904 | static inline void atomic_inc_mb(atomic_t *v) |
905 | { | |
906 | smp_mb__before_atomic(); | |
907 | atomic_inc(v); | |
908 | smp_mb__after_atomic(); | |
909 | } | |
910 | ||
911 | static inline void atomic_dec_mb(atomic_t *v) | |
912 | { | |
913 | smp_mb__before_atomic(); | |
914 | atomic_dec(v); | |
915 | smp_mb__after_atomic(); | |
916 | } | |
917 | ||
c66ac9db | 918 | #endif /* TARGET_CORE_BASE_H */ |