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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 | /* | |
20 | * By default we use 32-byte CDBs in TCM Core and subsystem plugin code. | |
21 | * | |
22 | * Note that both include/scsi/scsi_cmnd.h:MAX_COMMAND_SIZE and | |
23 | * include/linux/blkdev.h:BLOCK_MAX_CDB as of v2.6.36-rc4 still use | |
24 | * 16-byte CDBs by default and require an extra allocation for | |
25985edc | 25 | * 32-byte CDBs to because of legacy issues. |
c66ac9db NB |
26 | * |
27 | * Within TCM Core there are no such legacy limitiations, so we go ahead | |
28 | * use 32-byte CDBs by default and use include/scsi/scsi.h:scsi_command_size() | |
29 | * within all TCM Core and subsystem plugin code. | |
30 | */ | |
31 | #define TCM_MAX_COMMAND_SIZE 32 | |
32 | /* | |
33 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
34 | * defined 96, but the real limit is 252 (or 260 including the header) | |
35 | */ | |
36 | #define TRANSPORT_SENSE_BUFFER SCSI_SENSE_BUFFERSIZE | |
37 | /* Used by transport_send_check_condition_and_sense() */ | |
38 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 39 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
40 | #define SPC_DESC_TYPE_OFFSET 8 |
41 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
42 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
43 | #define SPC_ASC_KEY_OFFSET 12 |
44 | #define SPC_ASCQ_KEY_OFFSET 13 | |
45 | #define TRANSPORT_IQN_LEN 224 | |
46 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
47 | #define LU_GROUP_NAME_BUF 256 | |
48 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
49 | #define TG_PT_GROUP_NAME_BUF 256 | |
50 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 51 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
52 | /* Used by transport_generic_cmd_sequencer() */ |
53 | #define READ_BLOCK_LEN 6 | |
54 | #define READ_CAP_LEN 8 | |
55 | #define READ_POSITION_LEN 20 | |
56 | #define INQUIRY_LEN 36 | |
57 | /* Used by transport_get_inquiry_vpd_serial() */ | |
58 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
59 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
60 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
61 | ||
c4795fb2 CH |
62 | /* Attempts before moving from SHORT to LONG */ |
63 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
64 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
65 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
66 | ||
67 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
68 | ||
c4795fb2 CH |
69 | /* struct se_dev_attrib sanity values */ |
70 | /* Default max_unmap_lba_count */ | |
71 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
72 | /* Default max_unmap_block_desc_count */ | |
73 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
74 | /* Default unmap_granularity */ | |
75 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
76 | /* Default unmap_granularity_alignment */ | |
77 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
773cbaf7 NB |
78 | /* Default max_write_same_len, disabled by default */ |
79 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
80 | /* Use a model alias based on the configfs backend device name */ |
81 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
82 | /* Emulation for Direct Page Out */ |
83 | #define DA_EMULATE_DPO 0 | |
84 | /* Emulation for Forced Unit Access WRITEs */ | |
85 | #define DA_EMULATE_FUA_WRITE 1 | |
86 | /* Emulation for Forced Unit Access READs */ | |
87 | #define DA_EMULATE_FUA_READ 0 | |
88 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ | |
89 | #define DA_EMULATE_WRITE_CACHE 0 | |
90 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
91 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
92 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
93 | #define DA_EMULATE_TAS 1 | |
94 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
95 | #define DA_EMULATE_TPU 0 | |
96 | /* | |
97 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
98 | * block/blk-lib.c:blkdev_issue_discard() | |
99 | */ | |
100 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
101 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
102 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
103 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
104 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 105 | /* No Emulation for PSCSI by default */ |
c4795fb2 CH |
106 | #define DA_EMULATE_ALUA 0 |
107 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | |
108 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
109 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
110 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
111 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
112 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
113 | /* By default don't report non-rotating (solid state) medium */ | |
114 | #define DA_IS_NONROT 0 | |
115 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
116 | #define DA_EMULATE_REST_REORD 0 | |
117 | ||
f82f320e | 118 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 119 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 120 | #define SE_SENSE_BUF 96 |
c4795fb2 | 121 | |
c66ac9db NB |
122 | /* struct se_hba->hba_flags */ |
123 | enum hba_flags_table { | |
124 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
125 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
126 | }; | |
127 | ||
128 | /* struct se_lun->lun_status */ | |
129 | enum transport_lun_status_table { | |
130 | TRANSPORT_LUN_STATUS_FREE = 0, | |
131 | TRANSPORT_LUN_STATUS_ACTIVE = 1, | |
132 | }; | |
133 | ||
134 | /* struct se_portal_group->se_tpg_type */ | |
135 | enum transport_tpg_type_table { | |
136 | TRANSPORT_TPG_TYPE_NORMAL = 0, | |
137 | TRANSPORT_TPG_TYPE_DISCOVERY = 1, | |
138 | }; | |
139 | ||
c66ac9db NB |
140 | /* Special transport agnostic struct se_cmd->t_states */ |
141 | enum transport_state_table { | |
142 | TRANSPORT_NO_STATE = 0, | |
143 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 144 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 145 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 146 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 147 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 148 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 149 | TRANSPORT_COMPLETE_QF_OK = 19, |
c66ac9db NB |
150 | }; |
151 | ||
152 | /* Used for struct se_cmd->se_cmd_flags */ | |
153 | enum se_cmd_flags_table { | |
154 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
155 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
156 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
157 | SCF_SCSI_DATA_CDB = 0x00000008, |
158 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
159 | SCF_FUA = 0x00000080, |
160 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
161 | SCF_BIDI = 0x00000400, |
162 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
163 | SCF_OVERFLOW_BIT = 0x00001000, | |
164 | SCF_UNDERFLOW_BIT = 0x00002000, | |
68259b5a | 165 | SCF_SEND_DELAYED_TAS = 0x00004000, |
64f1db38 | 166 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 CH |
167 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
168 | SCF_ACK_KREF = 0x00040000, | |
a82a9538 NB |
169 | SCF_COMPARE_AND_WRITE = 0x00080000, |
170 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, | |
c66ac9db NB |
171 | }; |
172 | ||
173 | /* struct se_dev_entry->lun_flags and struct se_lun->lun_access */ | |
174 | enum transport_lunflags_table { | |
175 | TRANSPORT_LUNFLAGS_NO_ACCESS = 0x00, | |
176 | TRANSPORT_LUNFLAGS_INITIATOR_ACCESS = 0x01, | |
177 | TRANSPORT_LUNFLAGS_READ_ONLY = 0x02, | |
178 | TRANSPORT_LUNFLAGS_READ_WRITE = 0x04, | |
179 | }; | |
180 | ||
c66ac9db | 181 | /* |
de103c93 | 182 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
183 | * to signal which ASC/ASCQ sense payload should be built. |
184 | */ | |
de103c93 CH |
185 | typedef unsigned __bitwise__ sense_reason_t; |
186 | ||
c66ac9db | 187 | enum tcm_sense_reason_table { |
de103c93 | 188 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 189 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
190 | TCM_NON_EXISTENT_LUN = R(0x01), |
191 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
192 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
193 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
194 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
195 | TCM_SNACK_REJECTED = R(0x06), | |
196 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
197 | TCM_INVALID_CDB_FIELD = R(0x08), | |
198 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
199 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
200 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
201 | TCM_WRITE_PROTECTED = R(0x0c), | |
202 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
203 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
204 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), | |
205 | TCM_RESERVATION_CONFLICT = R(0x10), | |
206 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
207 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 208 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 209 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
210 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
211 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
212 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
de103c93 | 213 | #undef R |
c66ac9db NB |
214 | }; |
215 | ||
a6360785 NB |
216 | enum target_sc_flags_table { |
217 | TARGET_SCF_BIDI_OP = 0x01, | |
218 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 219 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
a6360785 NB |
220 | }; |
221 | ||
c4795fb2 CH |
222 | /* fabric independent task management function values */ |
223 | enum tcm_tmreq_table { | |
224 | TMR_ABORT_TASK = 1, | |
225 | TMR_ABORT_TASK_SET = 2, | |
226 | TMR_CLEAR_ACA = 3, | |
227 | TMR_CLEAR_TASK_SET = 4, | |
228 | TMR_LUN_RESET = 5, | |
229 | TMR_TARGET_WARM_RESET = 6, | |
230 | TMR_TARGET_COLD_RESET = 7, | |
c4795fb2 CH |
231 | }; |
232 | ||
233 | /* fabric independent task management response values */ | |
234 | enum tcm_tmrsp_table { | |
a314d700 | 235 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
236 | TMR_FUNCTION_COMPLETE = 1, |
237 | TMR_TASK_DOES_NOT_EXIST = 2, | |
238 | TMR_LUN_DOES_NOT_EXIST = 3, | |
239 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
240 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
241 | }; |
242 | ||
e89d15ee NB |
243 | /* |
244 | * Used for target SCSI statistics | |
245 | */ | |
246 | typedef enum { | |
247 | SCSI_INST_INDEX, | |
248 | SCSI_DEVICE_INDEX, | |
249 | SCSI_AUTH_INTR_INDEX, | |
250 | SCSI_INDEX_TYPE_MAX | |
251 | } scsi_index_t; | |
252 | ||
c66ac9db NB |
253 | struct se_cmd; |
254 | ||
c66094bf HR |
255 | struct t10_alua_lba_map_member { |
256 | struct list_head lba_map_mem_list; | |
257 | int lba_map_mem_alua_state; | |
258 | int lba_map_mem_alua_pg_id; | |
259 | }; | |
260 | ||
261 | struct t10_alua_lba_map { | |
262 | u64 lba_map_first_lba; | |
263 | u64 lba_map_last_lba; | |
264 | struct list_head lba_map_list; | |
265 | struct list_head lba_map_mem_list; | |
266 | }; | |
267 | ||
c66ac9db | 268 | struct t10_alua { |
c66ac9db NB |
269 | /* ALUA Target Port Group ID */ |
270 | u16 alua_tg_pt_gps_counter; | |
271 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
272 | /* Referrals support */ |
273 | spinlock_t lba_map_lock; | |
274 | u32 lba_map_segment_size; | |
275 | u32 lba_map_segment_multiplier; | |
276 | struct list_head lba_map_list; | |
c66ac9db | 277 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 278 | struct se_device *t10_dev; |
c66ac9db NB |
279 | /* Used for default ALUA Target Port Group */ |
280 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
281 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
282 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 283 | struct list_head tg_pt_gps_list; |
e0a53e70 | 284 | }; |
c66ac9db NB |
285 | |
286 | struct t10_alua_lu_gp { | |
287 | u16 lu_gp_id; | |
288 | int lu_gp_valid_id; | |
289 | u32 lu_gp_members; | |
c66ac9db NB |
290 | atomic_t lu_gp_ref_cnt; |
291 | spinlock_t lu_gp_lock; | |
292 | struct config_group lu_gp_group; | |
e3d6f909 | 293 | struct list_head lu_gp_node; |
c66ac9db | 294 | struct list_head lu_gp_mem_list; |
e0a53e70 | 295 | }; |
c66ac9db NB |
296 | |
297 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 298 | bool lu_gp_assoc; |
c66ac9db NB |
299 | atomic_t lu_gp_mem_ref_cnt; |
300 | spinlock_t lu_gp_mem_lock; | |
301 | struct t10_alua_lu_gp *lu_gp; | |
302 | struct se_device *lu_gp_mem_dev; | |
303 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 304 | }; |
c66ac9db NB |
305 | |
306 | struct t10_alua_tg_pt_gp { | |
307 | u16 tg_pt_gp_id; | |
308 | int tg_pt_gp_valid_id; | |
c0dc941e | 309 | int tg_pt_gp_alua_supported_states; |
dfbce75a HR |
310 | int tg_pt_gp_alua_pending_state; |
311 | int tg_pt_gp_alua_previous_state; | |
c66ac9db NB |
312 | int tg_pt_gp_alua_access_status; |
313 | int tg_pt_gp_alua_access_type; | |
314 | int tg_pt_gp_nonop_delay_msecs; | |
315 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 316 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
317 | int tg_pt_gp_pref; |
318 | int tg_pt_gp_write_metadata; | |
c66ac9db NB |
319 | u32 tg_pt_gp_members; |
320 | atomic_t tg_pt_gp_alua_access_state; | |
321 | atomic_t tg_pt_gp_ref_cnt; | |
322 | spinlock_t tg_pt_gp_lock; | |
323 | struct mutex tg_pt_gp_md_mutex; | |
0fd97ccf | 324 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
325 | struct config_group tg_pt_gp_group; |
326 | struct list_head tg_pt_gp_list; | |
327 | struct list_head tg_pt_gp_mem_list; | |
9c6e164c HR |
328 | struct se_port *tg_pt_gp_alua_port; |
329 | struct se_node_acl *tg_pt_gp_alua_nacl; | |
330 | struct delayed_work tg_pt_gp_transition_work; | |
331 | struct completion *tg_pt_gp_transition_complete; | |
e0a53e70 | 332 | }; |
c66ac9db NB |
333 | |
334 | struct t10_alua_tg_pt_gp_member { | |
5dd7ed2e | 335 | bool tg_pt_gp_assoc; |
c66ac9db NB |
336 | atomic_t tg_pt_gp_mem_ref_cnt; |
337 | spinlock_t tg_pt_gp_mem_lock; | |
338 | struct t10_alua_tg_pt_gp *tg_pt_gp; | |
339 | struct se_port *tg_pt; | |
340 | struct list_head tg_pt_gp_mem_list; | |
e0a53e70 | 341 | }; |
c66ac9db NB |
342 | |
343 | struct t10_vpd { | |
344 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
345 | int protocol_identifier_set; | |
346 | u32 protocol_identifier; | |
347 | u32 device_identifier_code_set; | |
348 | u32 association; | |
349 | u32 device_identifier_type; | |
350 | struct list_head vpd_list; | |
e0a53e70 | 351 | }; |
c66ac9db NB |
352 | |
353 | struct t10_wwn { | |
e3d6f909 AG |
354 | char vendor[8]; |
355 | char model[16]; | |
356 | char revision[4]; | |
357 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | |
c66ac9db | 358 | spinlock_t t10_vpd_lock; |
0fd97ccf | 359 | struct se_device *t10_dev; |
c66ac9db NB |
360 | struct config_group t10_wwn_group; |
361 | struct list_head t10_vpd_list; | |
e0a53e70 | 362 | }; |
c66ac9db | 363 | |
c66ac9db NB |
364 | struct t10_pr_registration { |
365 | /* Used for fabrics that contain WWN+ISID */ | |
366 | #define PR_REG_ISID_LEN 16 | |
367 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
368 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
369 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
370 | /* Used during APTPL metadata reading */ | |
371 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
372 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
373 | /* Used during APTPL metadata reading */ | |
374 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
375 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
376 | u16 pr_aptpl_rpti; |
377 | u16 pr_reg_tpgt; | |
378 | /* Reservation effects all target ports */ | |
379 | int pr_reg_all_tg_pt; | |
380 | /* Activate Persistence across Target Power Loss */ | |
381 | int pr_reg_aptpl; | |
382 | int pr_res_holder; | |
383 | int pr_res_type; | |
384 | int pr_res_scope; | |
385 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 386 | bool isid_present_at_reg; |
c66ac9db NB |
387 | u32 pr_res_mapped_lun; |
388 | u32 pr_aptpl_target_lun; | |
389 | u32 pr_res_generation; | |
390 | u64 pr_reg_bin_isid; | |
391 | u64 pr_res_key; | |
392 | atomic_t pr_res_holders; | |
393 | struct se_node_acl *pr_reg_nacl; | |
394 | struct se_dev_entry *pr_reg_deve; | |
395 | struct se_lun *pr_reg_tg_pt_lun; | |
396 | struct list_head pr_reg_list; | |
397 | struct list_head pr_reg_abort_list; | |
398 | struct list_head pr_reg_aptpl_list; | |
399 | struct list_head pr_reg_atp_list; | |
400 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 401 | }; |
c66ac9db | 402 | |
e3d6f909 | 403 | struct t10_reservation { |
c66ac9db NB |
404 | /* Reservation effects all target ports */ |
405 | int pr_all_tg_pt; | |
406 | /* Activate Persistence across Target Power Loss enabled | |
407 | * for SCSI device */ | |
408 | int pr_aptpl_active; | |
f161d4b4 | 409 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 410 | u32 pr_generation; |
c66ac9db NB |
411 | spinlock_t registration_lock; |
412 | spinlock_t aptpl_reg_lock; | |
413 | /* | |
414 | * This will always be set by one individual I_T Nexus. | |
415 | * However with all_tg_pt=1, other I_T Nexus from the | |
416 | * same initiator can access PR reg/res info on a different | |
417 | * target port. | |
418 | * | |
419 | * There is also the 'All Registrants' case, where there is | |
420 | * a single *pr_res_holder of the reservation, but all | |
421 | * registrations are considered reservation holders. | |
422 | */ | |
423 | struct se_node_acl *pr_res_holder; | |
424 | struct list_head registration_list; | |
425 | struct list_head aptpl_reg_list; | |
e0a53e70 | 426 | }; |
c66ac9db | 427 | |
c8e31f26 AG |
428 | struct se_tmr_req { |
429 | /* Task Management function to be performed */ | |
430 | u8 function; | |
431 | /* Task Management response to send */ | |
432 | u8 response; | |
433 | int call_transport; | |
434 | /* Reference to ITT that Task Mgmt should be performed */ | |
435 | u32 ref_task_tag; | |
c8e31f26 AG |
436 | void *fabric_tmr_ptr; |
437 | struct se_cmd *task_cmd; | |
c8e31f26 AG |
438 | struct se_device *tmr_dev; |
439 | struct se_lun *tmr_lun; | |
440 | struct list_head tmr_list; | |
441 | }; | |
442 | ||
ce65e5b9 | 443 | enum target_prot_op { |
e70beee7 NB |
444 | TARGET_PROT_NORMAL = 0, |
445 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
446 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
447 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
448 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
449 | TARGET_PROT_DIN_PASS = (1 << 4), | |
450 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
451 | }; |
452 | ||
e70beee7 NB |
453 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
454 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
455 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
456 | ||
ce65e5b9 NB |
457 | enum target_prot_type { |
458 | TARGET_DIF_TYPE0_PROT, | |
459 | TARGET_DIF_TYPE1_PROT, | |
460 | TARGET_DIF_TYPE2_PROT, | |
461 | TARGET_DIF_TYPE3_PROT, | |
462 | }; | |
463 | ||
19f9361a SG |
464 | enum target_core_dif_check { |
465 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
466 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
467 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
468 | }; | |
469 | ||
ce65e5b9 NB |
470 | struct se_dif_v1_tuple { |
471 | __be16 guard_tag; | |
472 | __be16 app_tag; | |
473 | __be32 ref_tag; | |
474 | }; | |
475 | ||
68d81f40 CH |
476 | /* for sam_task_attr */ |
477 | #define TCM_SIMPLE_TAG 0x20 | |
478 | #define TCM_HEAD_TAG 0x21 | |
479 | #define TCM_ORDERED_TAG 0x22 | |
480 | #define TCM_ACA_TAG 0x24 | |
481 | ||
c66ac9db NB |
482 | struct se_cmd { |
483 | /* SAM response code being sent to initiator */ | |
484 | u8 scsi_status; | |
485 | u8 scsi_asc; | |
486 | u8 scsi_ascq; | |
c66ac9db NB |
487 | u16 scsi_sense_length; |
488 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ | |
489 | int alua_nonop_delay; | |
490 | /* See include/linux/dma-mapping.h */ | |
491 | enum dma_data_direction data_direction; | |
492 | /* For SAM Task Attribute */ | |
493 | int sam_task_attr; | |
c0add7fd NB |
494 | /* Used for se_sess->sess_tag_pool */ |
495 | unsigned int map_tag; | |
c66ac9db NB |
496 | /* Transport protocol dependent state, see transport_state_table */ |
497 | enum transport_state_table t_state; | |
5f655e8d | 498 | unsigned cmd_wait_set:1; |
b0d79946 | 499 | unsigned unknown_data_length:1; |
c66ac9db NB |
500 | /* See se_cmd_flags_table */ |
501 | u32 se_cmd_flags; | |
502 | u32 se_ordered_id; | |
503 | /* Total size in bytes associated with command */ | |
504 | u32 data_length; | |
c66ac9db NB |
505 | u32 residual_count; |
506 | u32 orig_fe_lun; | |
507 | /* Persistent Reservation key */ | |
508 | u64 pr_res_key; | |
c66ac9db NB |
509 | /* Used for sense data */ |
510 | void *sense_buffer; | |
5951146d | 511 | struct list_head se_delayed_node; |
07bde79a | 512 | struct list_head se_qf_node; |
c66ac9db NB |
513 | struct se_device *se_dev; |
514 | struct se_dev_entry *se_deve; | |
c66ac9db NB |
515 | struct se_lun *se_lun; |
516 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
517 | struct se_session *se_sess; | |
518 | struct se_tmr_req *se_tmr_req; | |
a17f091d NB |
519 | struct list_head se_cmd_list; |
520 | struct completion cmd_wait_comp; | |
7481deb4 | 521 | struct kref cmd_kref; |
c66ac9db | 522 | struct target_core_fabric_ops *se_tfo; |
de103c93 | 523 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
a82a9538 NB |
524 | sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *, |
525 | u32, enum dma_data_direction); | |
a6b0133c | 526 | sense_reason_t (*transport_complete_callback)(struct se_cmd *); |
07bde79a | 527 | |
a1d8b49a AG |
528 | unsigned char *t_task_cdb; |
529 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
530 | unsigned long long t_task_lba; | |
a82a9538 | 531 | unsigned int t_task_nolb; |
7d680f3b CH |
532 | unsigned int transport_state; |
533 | #define CMD_T_ABORTED (1 << 0) | |
534 | #define CMD_T_ACTIVE (1 << 1) | |
535 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
536 | #define CMD_T_SENT (1 << 4) |
537 | #define CMD_T_STOP (1 << 5) | |
4a9a6c8d NB |
538 | #define CMD_T_DEV_ACTIVE (1 << 7) |
539 | #define CMD_T_REQUEST_STOP (1 << 8) | |
540 | #define CMD_T_BUSY (1 << 9) | |
a1d8b49a AG |
541 | spinlock_t t_state_lock; |
542 | struct completion t_transport_stop_comp; | |
05d1c7c0 | 543 | |
35e0e757 CH |
544 | struct work_struct work; |
545 | ||
ec98f782 | 546 | struct scatterlist *t_data_sg; |
47e459e6 | 547 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 548 | unsigned int t_data_nents; |
47e459e6 | 549 | unsigned int t_data_nents_orig; |
4949314c | 550 | void *t_data_vmap; |
ec98f782 AG |
551 | struct scatterlist *t_bidi_data_sg; |
552 | unsigned int t_bidi_data_nents; | |
553 | ||
cf572a96 CH |
554 | struct list_head state_list; |
555 | bool state_active; | |
556 | ||
557 | /* old task stop completion, consider merging with some of the above */ | |
558 | struct completion task_stop_comp; | |
559 | ||
5787cacd CH |
560 | /* backend private data */ |
561 | void *priv; | |
5277797d NB |
562 | |
563 | /* Used for lun->lun_ref counting */ | |
5259a06e | 564 | int lun_ref_active; |
ce65e5b9 NB |
565 | |
566 | /* DIF related members */ | |
567 | enum target_prot_op prot_op; | |
568 | enum target_prot_type prot_type; | |
19f9361a | 569 | u8 prot_checks; |
ce65e5b9 NB |
570 | u32 prot_length; |
571 | u32 reftag_seed; | |
572 | struct scatterlist *t_prot_sg; | |
573 | unsigned int t_prot_nents; | |
ce65e5b9 | 574 | sense_reason_t pi_err; |
76736db3 | 575 | sector_t bad_sector; |
b5b8e298 | 576 | bool prot_pto; |
e0a53e70 | 577 | }; |
c66ac9db | 578 | |
c66ac9db NB |
579 | struct se_ua { |
580 | u8 ua_asc; | |
581 | u8 ua_ascq; | |
582 | struct se_node_acl *ua_nacl; | |
c66ac9db | 583 | struct list_head ua_nacl_list; |
e0a53e70 | 584 | }; |
c66ac9db NB |
585 | |
586 | struct se_node_acl { | |
587 | char initiatorname[TRANSPORT_IQN_LEN]; | |
588 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 589 | bool dynamic_node_acl; |
337c0607 | 590 | bool acl_stop:1; |
c66ac9db NB |
591 | u32 queue_depth; |
592 | u32 acl_index; | |
79e62fc3 AG |
593 | #define MAX_ACL_TAG_SIZE 64 |
594 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
595 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
596 | atomic_t acl_pr_ref_count; | |
f2083241 | 597 | struct se_dev_entry **device_list; |
c66ac9db NB |
598 | struct se_session *nacl_sess; |
599 | struct se_portal_group *se_tpg; | |
600 | spinlock_t device_list_lock; | |
601 | spinlock_t nacl_sess_lock; | |
602 | struct config_group acl_group; | |
603 | struct config_group acl_attrib_group; | |
604 | struct config_group acl_auth_group; | |
605 | struct config_group acl_param_group; | |
12d23384 NB |
606 | struct config_group acl_fabric_stat_group; |
607 | struct config_group *acl_default_groups[5]; | |
c66ac9db NB |
608 | struct list_head acl_list; |
609 | struct list_head acl_sess_list; | |
01468346 | 610 | struct completion acl_free_comp; |
afb999ff | 611 | struct kref acl_kref; |
e0a53e70 | 612 | }; |
c66ac9db NB |
613 | |
614 | struct se_session { | |
5f655e8d | 615 | unsigned sess_tearing_down:1; |
c66ac9db | 616 | u64 sess_bin_isid; |
e70beee7 | 617 | enum target_prot_op sup_prot_ops; |
38b57f82 | 618 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
619 | struct se_node_acl *se_node_acl; |
620 | struct se_portal_group *se_tpg; | |
621 | void *fabric_sess_ptr; | |
622 | struct list_head sess_list; | |
623 | struct list_head sess_acl_list; | |
a17f091d | 624 | struct list_head sess_cmd_list; |
9b31a328 | 625 | struct list_head sess_wait_list; |
a17f091d | 626 | spinlock_t sess_cmd_lock; |
41ac82b6 | 627 | struct kref sess_kref; |
c0add7fd NB |
628 | void *sess_cmd_map; |
629 | struct percpu_ida sess_tag_pool; | |
e0a53e70 | 630 | }; |
c66ac9db | 631 | |
c66ac9db NB |
632 | struct se_device; |
633 | struct se_transform_info; | |
634 | struct scatterlist; | |
635 | ||
12d23384 NB |
636 | struct se_ml_stat_grps { |
637 | struct config_group stat_group; | |
638 | struct config_group scsi_auth_intr_group; | |
639 | struct config_group scsi_att_intr_port_group; | |
640 | }; | |
641 | ||
c66ac9db NB |
642 | struct se_lun_acl { |
643 | char initiatorname[TRANSPORT_IQN_LEN]; | |
644 | u32 mapped_lun; | |
645 | struct se_node_acl *se_lun_nacl; | |
646 | struct se_lun *se_lun; | |
647 | struct list_head lacl_list; | |
648 | struct config_group se_lun_group; | |
12d23384 | 649 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 650 | }; |
c66ac9db NB |
651 | |
652 | struct se_dev_entry { | |
5dd7ed2e | 653 | bool def_pr_registered; |
c66ac9db NB |
654 | /* See transport_lunflags_table */ |
655 | u32 lun_flags; | |
c66ac9db | 656 | u32 mapped_lun; |
c66ac9db | 657 | u32 total_cmds; |
c66ac9db NB |
658 | u64 pr_res_key; |
659 | u64 creation_time; | |
660 | u32 attach_count; | |
661 | u64 read_bytes; | |
662 | u64 write_bytes; | |
663 | atomic_t ua_count; | |
664 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
665 | atomic_t pr_ref_count; | |
666 | struct se_lun_acl *se_lun_acl; | |
667 | spinlock_t ua_lock; | |
668 | struct se_lun *se_lun; | |
669 | struct list_head alua_port_list; | |
670 | struct list_head ua_list; | |
e0a53e70 | 671 | }; |
c66ac9db | 672 | |
c66ac9db | 673 | struct se_dev_attrib { |
adfa9570 | 674 | int emulate_model_alias; |
c66ac9db NB |
675 | int emulate_dpo; |
676 | int emulate_fua_write; | |
677 | int emulate_fua_read; | |
678 | int emulate_write_cache; | |
679 | int emulate_ua_intlck_ctrl; | |
680 | int emulate_tas; | |
681 | int emulate_tpu; | |
682 | int emulate_tpws; | |
0123a9ec | 683 | int emulate_caw; |
d397a445 | 684 | int emulate_3pc; |
ce65e5b9 NB |
685 | int pi_prot_format; |
686 | enum target_prot_type pi_prot_type; | |
687 | enum target_prot_type hw_pi_prot_type; | |
c66ac9db | 688 | int enforce_pr_isids; |
92404e60 | 689 | int force_pr_aptpl; |
e22a7f07 | 690 | int is_nonrot; |
5de619a3 | 691 | int emulate_rest_reord; |
c66ac9db NB |
692 | u32 hw_block_size; |
693 | u32 block_size; | |
694 | u32 hw_max_sectors; | |
c66ac9db NB |
695 | u32 optimal_sectors; |
696 | u32 hw_queue_depth; | |
697 | u32 queue_depth; | |
c66ac9db NB |
698 | u32 max_unmap_lba_count; |
699 | u32 max_unmap_block_desc_count; | |
700 | u32 unmap_granularity; | |
701 | u32 unmap_granularity_alignment; | |
773cbaf7 | 702 | u32 max_write_same_len; |
95cadace | 703 | u32 max_bytes_per_io; |
0fd97ccf | 704 | struct se_device *da_dev; |
c66ac9db | 705 | struct config_group da_group; |
e0a53e70 | 706 | }; |
c66ac9db | 707 | |
4863e525 NB |
708 | struct se_port_stat_grps { |
709 | struct config_group stat_group; | |
710 | struct config_group scsi_port_group; | |
711 | struct config_group scsi_tgt_port_group; | |
712 | struct config_group scsi_transport_group; | |
713 | }; | |
714 | ||
715 | struct se_lun { | |
716 | #define SE_LUN_LINK_MAGIC 0xffff7771 | |
717 | u32 lun_link_magic; | |
718 | /* See transport_lun_status_table */ | |
719 | enum transport_lun_status_table lun_status; | |
720 | u32 lun_access; | |
721 | u32 lun_flags; | |
722 | u32 unpacked_lun; | |
723 | atomic_t lun_acl_count; | |
724 | spinlock_t lun_acl_lock; | |
725 | spinlock_t lun_sep_lock; | |
726 | struct completion lun_shutdown_comp; | |
727 | struct list_head lun_acl_list; | |
728 | struct se_device *lun_se_dev; | |
729 | struct se_port *lun_sep; | |
730 | struct config_group lun_group; | |
731 | struct se_port_stat_grps port_stat_grps; | |
732 | struct completion lun_ref_comp; | |
733 | struct percpu_ref lun_ref; | |
734 | }; | |
735 | ||
12d23384 NB |
736 | struct se_dev_stat_grps { |
737 | struct config_group stat_group; | |
738 | struct config_group scsi_dev_group; | |
739 | struct config_group scsi_tgt_dev_group; | |
740 | struct config_group scsi_lu_group; | |
741 | }; | |
742 | ||
c66ac9db | 743 | struct se_device { |
0ff87549 NB |
744 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
745 | u32 dev_link_magic; | |
c66ac9db NB |
746 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
747 | u16 dev_rpti_counter; | |
748 | /* Used for SAM Task Attribute ordering */ | |
749 | u32 dev_cur_ordered_id; | |
750 | u32 dev_flags; | |
0fd97ccf CH |
751 | #define DF_CONFIGURED 0x00000001 |
752 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
753 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
754 | #define DF_USING_UDEV_PATH 0x00000008 | |
755 | #define DF_USING_ALIAS 0x00000010 | |
c66ac9db | 756 | u32 dev_port_count; |
c66ac9db NB |
757 | /* Physical device queue depth */ |
758 | u32 queue_depth; | |
759 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
760 | u64 dev_res_bin_isid; | |
c66ac9db | 761 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
762 | u32 dev_index; |
763 | u64 creation_time; | |
ee480683 NB |
764 | atomic_long_t num_resets; |
765 | atomic_long_t num_cmds; | |
766 | atomic_long_t read_bytes; | |
767 | atomic_long_t write_bytes; | |
c66ac9db | 768 | /* Active commands on this virtual SE device */ |
c66ac9db | 769 | atomic_t simple_cmds; |
c66ac9db | 770 | atomic_t dev_ordered_id; |
c66ac9db | 771 | atomic_t dev_ordered_sync; |
07bde79a | 772 | atomic_t dev_qf_count; |
0fd97ccf | 773 | int export_count; |
c66ac9db | 774 | spinlock_t delayed_cmd_lock; |
c66ac9db | 775 | spinlock_t execute_task_lock; |
c66ac9db | 776 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
777 | unsigned int dev_reservation_flags; |
778 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
779 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
780 | spinlock_t se_port_lock; |
781 | spinlock_t se_tmr_lock; | |
07bde79a | 782 | spinlock_t qf_cmd_lock; |
68ff9b9b | 783 | struct semaphore caw_sem; |
c66ac9db NB |
784 | /* Used for legacy SPC-2 reservationsa */ |
785 | struct se_node_acl *dev_reserved_node_acl; | |
786 | /* Used for ALUA Logical Unit Group membership */ | |
787 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
788 | /* Used for SPC-3 Persistent Reservations */ | |
789 | struct t10_pr_registration *dev_pr_res_holder; | |
790 | struct list_head dev_sep_list; | |
791 | struct list_head dev_tmr_list; | |
af877292 | 792 | struct workqueue_struct *tmr_wq; |
07bde79a | 793 | struct work_struct qf_work_queue; |
c66ac9db | 794 | struct list_head delayed_cmd_list; |
cf572a96 | 795 | struct list_head state_list; |
07bde79a | 796 | struct list_head qf_cmd_list; |
d9ea32bf | 797 | struct list_head g_dev_node; |
c66ac9db NB |
798 | /* Pointer to associated SE HBA */ |
799 | struct se_hba *se_hba; | |
0fd97ccf CH |
800 | /* T10 Inquiry and VPD WWN Information */ |
801 | struct t10_wwn t10_wwn; | |
802 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
803 | struct t10_alua t10_alua; | |
804 | /* T10 SPC-2 + SPC-3 Reservations */ | |
805 | struct t10_reservation t10_pr; | |
806 | struct se_dev_attrib dev_attrib; | |
807 | struct config_group dev_group; | |
808 | struct config_group dev_pr_group; | |
809 | struct se_dev_stat_grps dev_stat_grps; | |
810 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
811 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
812 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
813 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db NB |
814 | /* Pointer to template of function pointers for transport */ |
815 | struct se_subsystem_api *transport; | |
816 | /* Linked list for struct se_hba struct se_device list */ | |
817 | struct list_head dev_list; | |
4863e525 | 818 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
819 | /* Protection Information */ |
820 | int prot_length; | |
e0a53e70 | 821 | }; |
c66ac9db | 822 | |
c66ac9db NB |
823 | struct se_hba { |
824 | u16 hba_tpgt; | |
825 | u32 hba_id; | |
826 | /* See hba_flags_table */ | |
827 | u32 hba_flags; | |
828 | /* Virtual iSCSI devices attached. */ | |
829 | u32 dev_count; | |
830 | u32 hba_index; | |
c66ac9db NB |
831 | /* Pointer to transport specific host structure. */ |
832 | void *hba_ptr; | |
e3d6f909 | 833 | struct list_head hba_node; |
c66ac9db | 834 | spinlock_t device_lock; |
c66ac9db NB |
835 | struct config_group hba_group; |
836 | struct mutex hba_access_mutex; | |
837 | struct se_subsystem_api *transport; | |
e0a53e70 | 838 | }; |
c66ac9db | 839 | |
e89d15ee NB |
840 | struct scsi_port_stats { |
841 | u64 cmd_pdus; | |
842 | u64 tx_data_octets; | |
843 | u64 rx_data_octets; | |
e0a53e70 | 844 | }; |
e89d15ee | 845 | |
c66ac9db NB |
846 | struct se_port { |
847 | /* RELATIVE TARGET PORT IDENTIFER */ | |
848 | u16 sep_rtpi; | |
849 | int sep_tg_pt_secondary_stat; | |
850 | int sep_tg_pt_secondary_write_md; | |
851 | u32 sep_index; | |
852 | struct scsi_port_stats sep_stats; | |
853 | /* Used for ALUA Target Port Groups membership */ | |
c66ac9db NB |
854 | atomic_t sep_tg_pt_secondary_offline; |
855 | /* Used for PR ALL_TG_PT=1 */ | |
856 | atomic_t sep_tg_pt_ref_cnt; | |
857 | spinlock_t sep_alua_lock; | |
858 | struct mutex sep_tg_pt_md_mutex; | |
859 | struct t10_alua_tg_pt_gp_member *sep_alua_tg_pt_gp_mem; | |
860 | struct se_lun *sep_lun; | |
861 | struct se_portal_group *sep_tpg; | |
862 | struct list_head sep_alua_list; | |
863 | struct list_head sep_list; | |
e0a53e70 | 864 | }; |
c66ac9db NB |
865 | |
866 | struct se_tpg_np { | |
1f6fe7cb | 867 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 868 | struct config_group tpg_np_group; |
e0a53e70 | 869 | }; |
c66ac9db NB |
870 | |
871 | struct se_portal_group { | |
872 | /* Type of target portal group, see transport_tpg_type_table */ | |
873 | enum transport_tpg_type_table se_tpg_type; | |
874 | /* Number of ACLed Initiator Nodes for this TPG */ | |
875 | u32 num_node_acls; | |
876 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
877 | atomic_t tpg_pr_ref_count; | |
878 | /* Spinlock for adding/removing ACLed Nodes */ | |
879 | spinlock_t acl_node_lock; | |
880 | /* Spinlock for adding/removing sessions */ | |
881 | spinlock_t session_lock; | |
882 | spinlock_t tpg_lun_lock; | |
883 | /* Pointer to $FABRIC_MOD portal group */ | |
884 | void *se_tpg_fabric_ptr; | |
e3d6f909 | 885 | struct list_head se_tpg_node; |
c66ac9db NB |
886 | /* linked list for initiator ACL list */ |
887 | struct list_head acl_node_list; | |
4a5a75f3 | 888 | struct se_lun **tpg_lun_list; |
c66ac9db | 889 | struct se_lun tpg_virt_lun0; |
25985edc | 890 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
891 | struct list_head tpg_sess_list; |
892 | /* Pointer to $FABRIC_MOD dependent code */ | |
893 | struct target_core_fabric_ops *se_tpg_tfo; | |
894 | struct se_wwn *se_tpg_wwn; | |
895 | struct config_group tpg_group; | |
e4b512e7 | 896 | struct config_group *tpg_default_groups[7]; |
c66ac9db NB |
897 | struct config_group tpg_lun_group; |
898 | struct config_group tpg_np_group; | |
899 | struct config_group tpg_acl_group; | |
900 | struct config_group tpg_attrib_group; | |
e4b512e7 | 901 | struct config_group tpg_auth_group; |
c66ac9db | 902 | struct config_group tpg_param_group; |
e0a53e70 | 903 | }; |
c66ac9db | 904 | |
c66ac9db NB |
905 | struct se_wwn { |
906 | struct target_fabric_configfs *wwn_tf; | |
907 | struct config_group wwn_group; | |
12d23384 NB |
908 | struct config_group *wwn_default_groups[2]; |
909 | struct config_group fabric_stat_group; | |
e0a53e70 | 910 | }; |
c66ac9db | 911 | |
33940d09 JE |
912 | static inline void atomic_inc_mb(atomic_t *v) |
913 | { | |
914 | smp_mb__before_atomic(); | |
915 | atomic_inc(v); | |
916 | smp_mb__after_atomic(); | |
917 | } | |
918 | ||
919 | static inline void atomic_dec_mb(atomic_t *v) | |
920 | { | |
921 | smp_mb__before_atomic(); | |
922 | atomic_dec(v); | |
923 | smp_mb__after_atomic(); | |
924 | } | |
925 | ||
c66ac9db | 926 | #endif /* TARGET_CORE_BASE_H */ |