Commit | Line | Data |
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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> |
fe052a18 | 9 | #include <linux/t10-pi.h> |
c66ac9db NB |
10 | #include <net/sock.h> |
11 | #include <net/tcp.h> | |
c66ac9db | 12 | |
2ec1e9e2 | 13 | #define TARGET_CORE_VERSION "v5.0" |
c66ac9db | 14 | |
c66ac9db | 15 | /* |
8d3a8248 BVA |
16 | * Maximum size of a CDB that can be stored in se_cmd without allocating |
17 | * memory dynamically for the CDB. | |
c66ac9db NB |
18 | */ |
19 | #define TCM_MAX_COMMAND_SIZE 32 | |
20 | /* | |
21 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
22 | * defined 96, but the real limit is 252 (or 260 including the header) | |
23 | */ | |
ba929992 | 24 | #define TRANSPORT_SENSE_BUFFER 96 |
c66ac9db NB |
25 | /* Used by transport_send_check_condition_and_sense() */ |
26 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 27 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
28 | #define SPC_DESC_TYPE_OFFSET 8 |
29 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
30 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
31 | #define SPC_ASC_KEY_OFFSET 12 |
32 | #define SPC_ASCQ_KEY_OFFSET 13 | |
33 | #define TRANSPORT_IQN_LEN 224 | |
34 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
35 | #define LU_GROUP_NAME_BUF 256 | |
36 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
37 | #define TG_PT_GROUP_NAME_BUF 256 | |
38 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 39 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
40 | /* Used by transport_generic_cmd_sequencer() */ |
41 | #define READ_BLOCK_LEN 6 | |
42 | #define READ_CAP_LEN 8 | |
43 | #define READ_POSITION_LEN 20 | |
44 | #define INQUIRY_LEN 36 | |
45 | /* Used by transport_get_inquiry_vpd_serial() */ | |
46 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
47 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
48 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
49 | ||
c4795fb2 CH |
50 | /* Attempts before moving from SHORT to LONG */ |
51 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
52 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
53 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
54 | ||
55 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
56 | ||
c4795fb2 CH |
57 | /* struct se_dev_attrib sanity values */ |
58 | /* Default max_unmap_lba_count */ | |
59 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
60 | /* Default max_unmap_block_desc_count */ | |
61 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
62 | /* Default unmap_granularity */ | |
63 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
64 | /* Default unmap_granularity_alignment */ | |
65 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
e6f41633 JP |
66 | /* Default unmap_zeroes_data */ |
67 | #define DA_UNMAP_ZEROES_DATA_DEFAULT 0 | |
773cbaf7 NB |
68 | /* Default max_write_same_len, disabled by default */ |
69 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
70 | /* Use a model alias based on the configfs backend device name */ |
71 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
72 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
73 | #define DA_EMULATE_WRITE_CACHE 0 | |
74 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
75 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
76 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
77 | #define DA_EMULATE_TAS 1 | |
78 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
79 | #define DA_EMULATE_TPU 0 | |
80 | /* | |
81 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
82 | * block/blk-lib.c:blkdev_issue_discard() | |
83 | */ | |
84 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
85 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
86 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
87 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
88 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 89 | /* No Emulation for PSCSI by default */ |
c4795fb2 CH |
90 | #define DA_EMULATE_ALUA 0 |
91 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | |
92 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
93 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
94 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
95 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
96 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
97 | /* By default don't report non-rotating (solid state) medium */ | |
98 | #define DA_IS_NONROT 0 | |
99 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
100 | #define DA_EMULATE_REST_REORD 0 | |
101 | ||
f82f320e | 102 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 103 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 104 | #define SE_SENSE_BUF 96 |
c4795fb2 | 105 | |
c66ac9db NB |
106 | /* struct se_hba->hba_flags */ |
107 | enum hba_flags_table { | |
108 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
109 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
110 | }; | |
111 | ||
c66ac9db NB |
112 | /* Special transport agnostic struct se_cmd->t_states */ |
113 | enum transport_state_table { | |
114 | TRANSPORT_NO_STATE = 0, | |
115 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 116 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 117 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 118 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 119 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 120 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 121 | TRANSPORT_COMPLETE_QF_OK = 19, |
c66ac9db NB |
122 | }; |
123 | ||
124 | /* Used for struct se_cmd->se_cmd_flags */ | |
125 | enum se_cmd_flags_table { | |
126 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
127 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
128 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
129 | SCF_SCSI_DATA_CDB = 0x00000008, |
130 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
131 | SCF_FUA = 0x00000080, |
132 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
133 | SCF_BIDI = 0x00000400, |
134 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
135 | SCF_OVERFLOW_BIT = 0x00001000, | |
136 | SCF_UNDERFLOW_BIT = 0x00002000, | |
68259b5a | 137 | SCF_SEND_DELAYED_TAS = 0x00004000, |
64f1db38 | 138 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 | 139 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
a82a9538 NB |
140 | SCF_COMPARE_AND_WRITE = 0x00080000, |
141 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, | |
5835812f | 142 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, |
febe562c | 143 | SCF_ACK_KREF = 0x00400000, |
9095adaa | 144 | SCF_USE_CPUID = 0x00800000, |
c66ac9db NB |
145 | }; |
146 | ||
c66ac9db | 147 | /* |
de103c93 | 148 | * Used by transport_send_check_condition_and_sense() |
c66ac9db NB |
149 | * to signal which ASC/ASCQ sense payload should be built. |
150 | */ | |
de103c93 CH |
151 | typedef unsigned __bitwise__ sense_reason_t; |
152 | ||
c66ac9db | 153 | enum tcm_sense_reason_table { |
de103c93 | 154 | #define R(x) (__force sense_reason_t )(x) |
ba829137 | 155 | TCM_NO_SENSE = R(0x00), |
de103c93 CH |
156 | TCM_NON_EXISTENT_LUN = R(0x01), |
157 | TCM_UNSUPPORTED_SCSI_OPCODE = R(0x02), | |
158 | TCM_INCORRECT_AMOUNT_OF_DATA = R(0x03), | |
159 | TCM_UNEXPECTED_UNSOLICITED_DATA = R(0x04), | |
160 | TCM_SERVICE_CRC_ERROR = R(0x05), | |
161 | TCM_SNACK_REJECTED = R(0x06), | |
162 | TCM_SECTOR_COUNT_TOO_MANY = R(0x07), | |
163 | TCM_INVALID_CDB_FIELD = R(0x08), | |
164 | TCM_INVALID_PARAMETER_LIST = R(0x09), | |
165 | TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE = R(0x0a), | |
166 | TCM_UNKNOWN_MODE_PAGE = R(0x0b), | |
167 | TCM_WRITE_PROTECTED = R(0x0c), | |
168 | TCM_CHECK_CONDITION_ABORT_CMD = R(0x0d), | |
169 | TCM_CHECK_CONDITION_UNIT_ATTENTION = R(0x0e), | |
170 | TCM_CHECK_CONDITION_NOT_READY = R(0x0f), | |
171 | TCM_RESERVATION_CONFLICT = R(0x10), | |
172 | TCM_ADDRESS_OUT_OF_RANGE = R(0x11), | |
173 | TCM_OUT_OF_RESOURCES = R(0x12), | |
bb992e72 | 174 | TCM_PARAMETER_LIST_LENGTH_ERROR = R(0x13), |
818b571c | 175 | TCM_MISCOMPARE_VERIFY = R(0x14), |
fcc4f17b NB |
176 | TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED = R(0x15), |
177 | TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED = R(0x16), | |
178 | TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED = R(0x17), | |
de103c93 | 179 | #undef R |
c66ac9db NB |
180 | }; |
181 | ||
a6360785 NB |
182 | enum target_sc_flags_table { |
183 | TARGET_SCF_BIDI_OP = 0x01, | |
184 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 185 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
9095adaa | 186 | TARGET_SCF_USE_CPUID = 0x08, |
a6360785 NB |
187 | }; |
188 | ||
c4795fb2 CH |
189 | /* fabric independent task management function values */ |
190 | enum tcm_tmreq_table { | |
191 | TMR_ABORT_TASK = 1, | |
192 | TMR_ABORT_TASK_SET = 2, | |
193 | TMR_CLEAR_ACA = 3, | |
194 | TMR_CLEAR_TASK_SET = 4, | |
195 | TMR_LUN_RESET = 5, | |
196 | TMR_TARGET_WARM_RESET = 6, | |
197 | TMR_TARGET_COLD_RESET = 7, | |
c4795fb2 CH |
198 | }; |
199 | ||
200 | /* fabric independent task management response values */ | |
201 | enum tcm_tmrsp_table { | |
a314d700 | 202 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
203 | TMR_FUNCTION_COMPLETE = 1, |
204 | TMR_TASK_DOES_NOT_EXIST = 2, | |
205 | TMR_LUN_DOES_NOT_EXIST = 3, | |
206 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
207 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
208 | }; |
209 | ||
e89d15ee NB |
210 | /* |
211 | * Used for target SCSI statistics | |
212 | */ | |
213 | typedef enum { | |
214 | SCSI_INST_INDEX, | |
215 | SCSI_DEVICE_INDEX, | |
216 | SCSI_AUTH_INTR_INDEX, | |
217 | SCSI_INDEX_TYPE_MAX | |
218 | } scsi_index_t; | |
219 | ||
c66ac9db NB |
220 | struct se_cmd; |
221 | ||
c66094bf HR |
222 | struct t10_alua_lba_map_member { |
223 | struct list_head lba_map_mem_list; | |
224 | int lba_map_mem_alua_state; | |
225 | int lba_map_mem_alua_pg_id; | |
226 | }; | |
227 | ||
228 | struct t10_alua_lba_map { | |
229 | u64 lba_map_first_lba; | |
230 | u64 lba_map_last_lba; | |
231 | struct list_head lba_map_list; | |
232 | struct list_head lba_map_mem_list; | |
233 | }; | |
234 | ||
c66ac9db | 235 | struct t10_alua { |
c66ac9db NB |
236 | /* ALUA Target Port Group ID */ |
237 | u16 alua_tg_pt_gps_counter; | |
238 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
239 | /* Referrals support */ |
240 | spinlock_t lba_map_lock; | |
241 | u32 lba_map_segment_size; | |
242 | u32 lba_map_segment_multiplier; | |
243 | struct list_head lba_map_list; | |
c66ac9db | 244 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 245 | struct se_device *t10_dev; |
c66ac9db NB |
246 | /* Used for default ALUA Target Port Group */ |
247 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
248 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
249 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 250 | struct list_head tg_pt_gps_list; |
e0a53e70 | 251 | }; |
c66ac9db NB |
252 | |
253 | struct t10_alua_lu_gp { | |
254 | u16 lu_gp_id; | |
255 | int lu_gp_valid_id; | |
256 | u32 lu_gp_members; | |
c66ac9db NB |
257 | atomic_t lu_gp_ref_cnt; |
258 | spinlock_t lu_gp_lock; | |
259 | struct config_group lu_gp_group; | |
e3d6f909 | 260 | struct list_head lu_gp_node; |
c66ac9db | 261 | struct list_head lu_gp_mem_list; |
e0a53e70 | 262 | }; |
c66ac9db NB |
263 | |
264 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 265 | bool lu_gp_assoc; |
c66ac9db NB |
266 | atomic_t lu_gp_mem_ref_cnt; |
267 | spinlock_t lu_gp_mem_lock; | |
268 | struct t10_alua_lu_gp *lu_gp; | |
269 | struct se_device *lu_gp_mem_dev; | |
270 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 271 | }; |
c66ac9db NB |
272 | |
273 | struct t10_alua_tg_pt_gp { | |
274 | u16 tg_pt_gp_id; | |
275 | int tg_pt_gp_valid_id; | |
c0dc941e | 276 | int tg_pt_gp_alua_supported_states; |
dfbce75a HR |
277 | int tg_pt_gp_alua_pending_state; |
278 | int tg_pt_gp_alua_previous_state; | |
c66ac9db NB |
279 | int tg_pt_gp_alua_access_status; |
280 | int tg_pt_gp_alua_access_type; | |
281 | int tg_pt_gp_nonop_delay_msecs; | |
282 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 283 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
284 | int tg_pt_gp_pref; |
285 | int tg_pt_gp_write_metadata; | |
c66ac9db NB |
286 | u32 tg_pt_gp_members; |
287 | atomic_t tg_pt_gp_alua_access_state; | |
288 | atomic_t tg_pt_gp_ref_cnt; | |
289 | spinlock_t tg_pt_gp_lock; | |
290 | struct mutex tg_pt_gp_md_mutex; | |
0fd97ccf | 291 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
292 | struct config_group tg_pt_gp_group; |
293 | struct list_head tg_pt_gp_list; | |
adf653f9 CH |
294 | struct list_head tg_pt_gp_lun_list; |
295 | struct se_lun *tg_pt_gp_alua_lun; | |
9c6e164c HR |
296 | struct se_node_acl *tg_pt_gp_alua_nacl; |
297 | struct delayed_work tg_pt_gp_transition_work; | |
298 | struct completion *tg_pt_gp_transition_complete; | |
e0a53e70 | 299 | }; |
c66ac9db | 300 | |
c66ac9db NB |
301 | struct t10_vpd { |
302 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
303 | int protocol_identifier_set; | |
304 | u32 protocol_identifier; | |
305 | u32 device_identifier_code_set; | |
306 | u32 association; | |
307 | u32 device_identifier_type; | |
308 | struct list_head vpd_list; | |
e0a53e70 | 309 | }; |
c66ac9db NB |
310 | |
311 | struct t10_wwn { | |
e3d6f909 AG |
312 | char vendor[8]; |
313 | char model[16]; | |
314 | char revision[4]; | |
315 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | |
c66ac9db | 316 | spinlock_t t10_vpd_lock; |
0fd97ccf | 317 | struct se_device *t10_dev; |
c66ac9db NB |
318 | struct config_group t10_wwn_group; |
319 | struct list_head t10_vpd_list; | |
e0a53e70 | 320 | }; |
c66ac9db | 321 | |
c66ac9db NB |
322 | struct t10_pr_registration { |
323 | /* Used for fabrics that contain WWN+ISID */ | |
324 | #define PR_REG_ISID_LEN 16 | |
325 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
326 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
327 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
328 | /* Used during APTPL metadata reading */ | |
329 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
330 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
331 | /* Used during APTPL metadata reading */ | |
332 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
333 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
334 | u16 pr_aptpl_rpti; |
335 | u16 pr_reg_tpgt; | |
336 | /* Reservation effects all target ports */ | |
337 | int pr_reg_all_tg_pt; | |
338 | /* Activate Persistence across Target Power Loss */ | |
339 | int pr_reg_aptpl; | |
340 | int pr_res_holder; | |
341 | int pr_res_type; | |
342 | int pr_res_scope; | |
343 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 344 | bool isid_present_at_reg; |
f2d30680 HR |
345 | u64 pr_res_mapped_lun; |
346 | u64 pr_aptpl_target_lun; | |
79dc9c9e | 347 | u16 tg_pt_sep_rtpi; |
c66ac9db NB |
348 | u32 pr_res_generation; |
349 | u64 pr_reg_bin_isid; | |
350 | u64 pr_res_key; | |
351 | atomic_t pr_res_holders; | |
352 | struct se_node_acl *pr_reg_nacl; | |
79dc9c9e | 353 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
c66ac9db | 354 | struct se_dev_entry *pr_reg_deve; |
c66ac9db NB |
355 | struct list_head pr_reg_list; |
356 | struct list_head pr_reg_abort_list; | |
357 | struct list_head pr_reg_aptpl_list; | |
358 | struct list_head pr_reg_atp_list; | |
359 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 360 | }; |
c66ac9db | 361 | |
e3d6f909 | 362 | struct t10_reservation { |
c66ac9db NB |
363 | /* Reservation effects all target ports */ |
364 | int pr_all_tg_pt; | |
365 | /* Activate Persistence across Target Power Loss enabled | |
366 | * for SCSI device */ | |
367 | int pr_aptpl_active; | |
f161d4b4 | 368 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 369 | u32 pr_generation; |
c66ac9db NB |
370 | spinlock_t registration_lock; |
371 | spinlock_t aptpl_reg_lock; | |
372 | /* | |
373 | * This will always be set by one individual I_T Nexus. | |
374 | * However with all_tg_pt=1, other I_T Nexus from the | |
375 | * same initiator can access PR reg/res info on a different | |
376 | * target port. | |
377 | * | |
378 | * There is also the 'All Registrants' case, where there is | |
379 | * a single *pr_res_holder of the reservation, but all | |
380 | * registrations are considered reservation holders. | |
381 | */ | |
382 | struct se_node_acl *pr_res_holder; | |
383 | struct list_head registration_list; | |
384 | struct list_head aptpl_reg_list; | |
e0a53e70 | 385 | }; |
c66ac9db | 386 | |
c8e31f26 AG |
387 | struct se_tmr_req { |
388 | /* Task Management function to be performed */ | |
389 | u8 function; | |
390 | /* Task Management response to send */ | |
391 | u8 response; | |
392 | int call_transport; | |
393 | /* Reference to ITT that Task Mgmt should be performed */ | |
649ee054 | 394 | u64 ref_task_tag; |
c8e31f26 AG |
395 | void *fabric_tmr_ptr; |
396 | struct se_cmd *task_cmd; | |
c8e31f26 AG |
397 | struct se_device *tmr_dev; |
398 | struct se_lun *tmr_lun; | |
399 | struct list_head tmr_list; | |
400 | }; | |
401 | ||
ce65e5b9 | 402 | enum target_prot_op { |
e70beee7 NB |
403 | TARGET_PROT_NORMAL = 0, |
404 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
405 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
406 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
407 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
408 | TARGET_PROT_DIN_PASS = (1 << 4), | |
409 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
410 | }; |
411 | ||
e70beee7 NB |
412 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
413 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
414 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
415 | ||
ce65e5b9 NB |
416 | enum target_prot_type { |
417 | TARGET_DIF_TYPE0_PROT, | |
418 | TARGET_DIF_TYPE1_PROT, | |
419 | TARGET_DIF_TYPE2_PROT, | |
420 | TARGET_DIF_TYPE3_PROT, | |
421 | }; | |
422 | ||
19f9361a SG |
423 | enum target_core_dif_check { |
424 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
425 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
426 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
427 | }; | |
428 | ||
68d81f40 CH |
429 | /* for sam_task_attr */ |
430 | #define TCM_SIMPLE_TAG 0x20 | |
431 | #define TCM_HEAD_TAG 0x21 | |
432 | #define TCM_ORDERED_TAG 0x22 | |
433 | #define TCM_ACA_TAG 0x24 | |
434 | ||
c66ac9db NB |
435 | struct se_cmd { |
436 | /* SAM response code being sent to initiator */ | |
437 | u8 scsi_status; | |
438 | u8 scsi_asc; | |
439 | u8 scsi_ascq; | |
c66ac9db | 440 | u16 scsi_sense_length; |
915270c3 RD |
441 | unsigned cmd_wait_set:1; |
442 | unsigned unknown_data_length:1; | |
443 | bool state_active:1; | |
649ee054 | 444 | u64 tag; /* SAM command identifier aka task tag */ |
c66ac9db NB |
445 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
446 | int alua_nonop_delay; | |
447 | /* See include/linux/dma-mapping.h */ | |
448 | enum dma_data_direction data_direction; | |
449 | /* For SAM Task Attribute */ | |
450 | int sam_task_attr; | |
c0add7fd NB |
451 | /* Used for se_sess->sess_tag_pool */ |
452 | unsigned int map_tag; | |
c66ac9db NB |
453 | /* Transport protocol dependent state, see transport_state_table */ |
454 | enum transport_state_table t_state; | |
c66ac9db NB |
455 | /* See se_cmd_flags_table */ |
456 | u32 se_cmd_flags; | |
c66ac9db NB |
457 | /* Total size in bytes associated with command */ |
458 | u32 data_length; | |
c66ac9db | 459 | u32 residual_count; |
f2d30680 | 460 | u64 orig_fe_lun; |
c66ac9db NB |
461 | /* Persistent Reservation key */ |
462 | u64 pr_res_key; | |
c66ac9db NB |
463 | /* Used for sense data */ |
464 | void *sense_buffer; | |
5951146d | 465 | struct list_head se_delayed_node; |
07bde79a | 466 | struct list_head se_qf_node; |
c66ac9db | 467 | struct se_device *se_dev; |
c66ac9db NB |
468 | struct se_lun *se_lun; |
469 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
470 | struct se_session *se_sess; | |
471 | struct se_tmr_req *se_tmr_req; | |
a17f091d NB |
472 | struct list_head se_cmd_list; |
473 | struct completion cmd_wait_comp; | |
9ac8928e | 474 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 475 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
057085e5 | 476 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *); |
7a971b1b | 477 | void *protocol_data; |
07bde79a | 478 | |
a1d8b49a AG |
479 | unsigned char *t_task_cdb; |
480 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
481 | unsigned long long t_task_lba; | |
a82a9538 | 482 | unsigned int t_task_nolb; |
7d680f3b CH |
483 | unsigned int transport_state; |
484 | #define CMD_T_ABORTED (1 << 0) | |
485 | #define CMD_T_ACTIVE (1 << 1) | |
486 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
487 | #define CMD_T_SENT (1 << 4) |
488 | #define CMD_T_STOP (1 << 5) | |
4a9a6c8d | 489 | #define CMD_T_DEV_ACTIVE (1 << 7) |
4a9a6c8d | 490 | #define CMD_T_BUSY (1 << 9) |
0f4a9431 NB |
491 | #define CMD_T_TAS (1 << 10) |
492 | #define CMD_T_FABRIC_STOP (1 << 11) | |
a1d8b49a | 493 | spinlock_t t_state_lock; |
915270c3 | 494 | struct kref cmd_kref; |
a1d8b49a | 495 | struct completion t_transport_stop_comp; |
05d1c7c0 | 496 | |
35e0e757 CH |
497 | struct work_struct work; |
498 | ||
ec98f782 | 499 | struct scatterlist *t_data_sg; |
47e459e6 | 500 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 501 | unsigned int t_data_nents; |
47e459e6 | 502 | unsigned int t_data_nents_orig; |
4949314c | 503 | void *t_data_vmap; |
ec98f782 AG |
504 | struct scatterlist *t_bidi_data_sg; |
505 | unsigned int t_bidi_data_nents; | |
506 | ||
915270c3 RD |
507 | /* Used for lun->lun_ref counting */ |
508 | int lun_ref_active; | |
509 | ||
cf572a96 | 510 | struct list_head state_list; |
cf572a96 | 511 | |
5787cacd CH |
512 | /* backend private data */ |
513 | void *priv; | |
5277797d | 514 | |
ce65e5b9 NB |
515 | /* DIF related members */ |
516 | enum target_prot_op prot_op; | |
517 | enum target_prot_type prot_type; | |
19f9361a | 518 | u8 prot_checks; |
915270c3 | 519 | bool prot_pto; |
ce65e5b9 NB |
520 | u32 prot_length; |
521 | u32 reftag_seed; | |
522 | struct scatterlist *t_prot_sg; | |
523 | unsigned int t_prot_nents; | |
ce65e5b9 | 524 | sense_reason_t pi_err; |
76736db3 | 525 | sector_t bad_sector; |
fb3269ba | 526 | int cpuid; |
e0a53e70 | 527 | }; |
c66ac9db | 528 | |
c66ac9db NB |
529 | struct se_ua { |
530 | u8 ua_asc; | |
531 | u8 ua_ascq; | |
c66ac9db | 532 | struct list_head ua_nacl_list; |
e0a53e70 | 533 | }; |
c66ac9db NB |
534 | |
535 | struct se_node_acl { | |
536 | char initiatorname[TRANSPORT_IQN_LEN]; | |
537 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 538 | bool dynamic_node_acl; |
c66ac9db NB |
539 | u32 queue_depth; |
540 | u32 acl_index; | |
bffb5128 | 541 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
542 | #define MAX_ACL_TAG_SIZE 64 |
543 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
544 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
545 | atomic_t acl_pr_ref_count; | |
29a05dee | 546 | struct hlist_head lun_entry_hlist; |
c66ac9db NB |
547 | struct se_session *nacl_sess; |
548 | struct se_portal_group *se_tpg; | |
29a05dee | 549 | struct mutex lun_entry_mutex; |
c66ac9db NB |
550 | spinlock_t nacl_sess_lock; |
551 | struct config_group acl_group; | |
552 | struct config_group acl_attrib_group; | |
553 | struct config_group acl_auth_group; | |
554 | struct config_group acl_param_group; | |
12d23384 | 555 | struct config_group acl_fabric_stat_group; |
c66ac9db NB |
556 | struct list_head acl_list; |
557 | struct list_head acl_sess_list; | |
01468346 | 558 | struct completion acl_free_comp; |
afb999ff | 559 | struct kref acl_kref; |
e0a53e70 | 560 | }; |
c66ac9db | 561 | |
2eafd729 CH |
562 | static inline struct se_node_acl *acl_to_nacl(struct config_item *item) |
563 | { | |
564 | return container_of(to_config_group(item), struct se_node_acl, | |
565 | acl_group); | |
566 | } | |
567 | ||
568 | static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) | |
569 | { | |
570 | return container_of(to_config_group(item), struct se_node_acl, | |
571 | acl_attrib_group); | |
572 | } | |
573 | ||
574 | static inline struct se_node_acl *auth_to_nacl(struct config_item *item) | |
575 | { | |
576 | return container_of(to_config_group(item), struct se_node_acl, | |
577 | acl_auth_group); | |
578 | } | |
579 | ||
580 | static inline struct se_node_acl *param_to_nacl(struct config_item *item) | |
581 | { | |
582 | return container_of(to_config_group(item), struct se_node_acl, | |
583 | acl_param_group); | |
584 | } | |
585 | ||
586 | static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) | |
587 | { | |
588 | return container_of(to_config_group(item), struct se_node_acl, | |
589 | acl_fabric_stat_group); | |
590 | } | |
591 | ||
c66ac9db | 592 | struct se_session { |
5f655e8d | 593 | unsigned sess_tearing_down:1; |
c66ac9db | 594 | u64 sess_bin_isid; |
e70beee7 | 595 | enum target_prot_op sup_prot_ops; |
38b57f82 | 596 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
597 | struct se_node_acl *se_node_acl; |
598 | struct se_portal_group *se_tpg; | |
599 | void *fabric_sess_ptr; | |
600 | struct list_head sess_list; | |
601 | struct list_head sess_acl_list; | |
a17f091d | 602 | struct list_head sess_cmd_list; |
9b31a328 | 603 | struct list_head sess_wait_list; |
a17f091d | 604 | spinlock_t sess_cmd_lock; |
c0add7fd NB |
605 | void *sess_cmd_map; |
606 | struct percpu_ida sess_tag_pool; | |
e0a53e70 | 607 | }; |
c66ac9db | 608 | |
c66ac9db NB |
609 | struct se_device; |
610 | struct se_transform_info; | |
611 | struct scatterlist; | |
612 | ||
12d23384 NB |
613 | struct se_ml_stat_grps { |
614 | struct config_group stat_group; | |
615 | struct config_group scsi_auth_intr_group; | |
616 | struct config_group scsi_att_intr_port_group; | |
617 | }; | |
618 | ||
c66ac9db | 619 | struct se_lun_acl { |
f2d30680 | 620 | u64 mapped_lun; |
c66ac9db NB |
621 | struct se_node_acl *se_lun_nacl; |
622 | struct se_lun *se_lun; | |
c66ac9db | 623 | struct config_group se_lun_group; |
12d23384 | 624 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 625 | }; |
c66ac9db NB |
626 | |
627 | struct se_dev_entry { | |
f2d30680 | 628 | u64 mapped_lun; |
c66ac9db NB |
629 | u64 pr_res_key; |
630 | u64 creation_time; | |
03a68b44 | 631 | bool lun_access_ro; |
c66ac9db | 632 | u32 attach_count; |
29a05dee NB |
633 | atomic_long_t total_cmds; |
634 | atomic_long_t read_bytes; | |
635 | atomic_long_t write_bytes; | |
c66ac9db NB |
636 | atomic_t ua_count; |
637 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
29a05dee NB |
638 | struct kref pr_kref; |
639 | struct completion pr_comp; | |
640 | struct se_lun_acl __rcu *se_lun_acl; | |
c66ac9db | 641 | spinlock_t ua_lock; |
29a05dee | 642 | struct se_lun __rcu *se_lun; |
80bfdfa9 NB |
643 | #define DEF_PR_REG_ACTIVE 1 |
644 | unsigned long deve_flags; | |
c66ac9db | 645 | struct list_head alua_port_list; |
adf653f9 | 646 | struct list_head lun_link; |
c66ac9db | 647 | struct list_head ua_list; |
29a05dee NB |
648 | struct hlist_node link; |
649 | struct rcu_head rcu_head; | |
e0a53e70 | 650 | }; |
c66ac9db | 651 | |
c66ac9db | 652 | struct se_dev_attrib { |
adfa9570 | 653 | int emulate_model_alias; |
c66ac9db NB |
654 | int emulate_dpo; |
655 | int emulate_fua_write; | |
656 | int emulate_fua_read; | |
657 | int emulate_write_cache; | |
658 | int emulate_ua_intlck_ctrl; | |
659 | int emulate_tas; | |
660 | int emulate_tpu; | |
661 | int emulate_tpws; | |
0123a9ec | 662 | int emulate_caw; |
d397a445 | 663 | int emulate_3pc; |
ce65e5b9 NB |
664 | int pi_prot_format; |
665 | enum target_prot_type pi_prot_type; | |
666 | enum target_prot_type hw_pi_prot_type; | |
c66ac9db | 667 | int enforce_pr_isids; |
92404e60 | 668 | int force_pr_aptpl; |
e22a7f07 | 669 | int is_nonrot; |
5de619a3 | 670 | int emulate_rest_reord; |
e6f41633 | 671 | int unmap_zeroes_data; |
c66ac9db NB |
672 | u32 hw_block_size; |
673 | u32 block_size; | |
674 | u32 hw_max_sectors; | |
c66ac9db NB |
675 | u32 optimal_sectors; |
676 | u32 hw_queue_depth; | |
677 | u32 queue_depth; | |
c66ac9db NB |
678 | u32 max_unmap_lba_count; |
679 | u32 max_unmap_block_desc_count; | |
680 | u32 unmap_granularity; | |
681 | u32 unmap_granularity_alignment; | |
773cbaf7 | 682 | u32 max_write_same_len; |
95cadace | 683 | u32 max_bytes_per_io; |
0fd97ccf | 684 | struct se_device *da_dev; |
c66ac9db | 685 | struct config_group da_group; |
e0a53e70 | 686 | }; |
c66ac9db | 687 | |
4863e525 NB |
688 | struct se_port_stat_grps { |
689 | struct config_group stat_group; | |
690 | struct config_group scsi_port_group; | |
691 | struct config_group scsi_tgt_port_group; | |
692 | struct config_group scsi_transport_group; | |
693 | }; | |
694 | ||
adf653f9 | 695 | struct scsi_port_stats { |
4cc987ea NB |
696 | atomic_long_t cmd_pdus; |
697 | atomic_long_t tx_data_octets; | |
698 | atomic_long_t rx_data_octets; | |
adf653f9 CH |
699 | }; |
700 | ||
4863e525 | 701 | struct se_lun { |
f2d30680 | 702 | u64 unpacked_lun; |
4863e525 NB |
703 | #define SE_LUN_LINK_MAGIC 0xffff7771 |
704 | u32 lun_link_magic; | |
03a68b44 | 705 | bool lun_access_ro; |
29a05dee | 706 | u32 lun_index; |
f2d30680 HR |
707 | |
708 | /* RELATIVE TARGET PORT IDENTIFER */ | |
709 | u16 lun_rtpi; | |
4863e525 | 710 | atomic_t lun_acl_count; |
adf653f9 CH |
711 | struct se_device __rcu *lun_se_dev; |
712 | ||
713 | struct list_head lun_deve_list; | |
714 | spinlock_t lun_deve_lock; | |
715 | ||
716 | /* ALUA state */ | |
717 | int lun_tg_pt_secondary_stat; | |
718 | int lun_tg_pt_secondary_write_md; | |
719 | atomic_t lun_tg_pt_secondary_offline; | |
720 | struct mutex lun_tg_pt_md_mutex; | |
721 | ||
722 | /* ALUA target port group linkage */ | |
723 | struct list_head lun_tg_pt_gp_link; | |
724 | struct t10_alua_tg_pt_gp *lun_tg_pt_gp; | |
725 | spinlock_t lun_tg_pt_gp_lock; | |
726 | ||
adf653f9 CH |
727 | struct se_portal_group *lun_tpg; |
728 | struct scsi_port_stats lun_stats; | |
4863e525 NB |
729 | struct config_group lun_group; |
730 | struct se_port_stat_grps port_stat_grps; | |
731 | struct completion lun_ref_comp; | |
732 | struct percpu_ref lun_ref; | |
adf653f9 | 733 | struct list_head lun_dev_link; |
6bb82612 NB |
734 | struct hlist_node link; |
735 | struct rcu_head rcu_head; | |
4863e525 NB |
736 | }; |
737 | ||
12d23384 NB |
738 | struct se_dev_stat_grps { |
739 | struct config_group stat_group; | |
740 | struct config_group scsi_dev_group; | |
741 | struct config_group scsi_tgt_dev_group; | |
742 | struct config_group scsi_lu_group; | |
743 | }; | |
744 | ||
c66ac9db | 745 | struct se_device { |
0ff87549 NB |
746 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
747 | u32 dev_link_magic; | |
c66ac9db NB |
748 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
749 | u16 dev_rpti_counter; | |
750 | /* Used for SAM Task Attribute ordering */ | |
751 | u32 dev_cur_ordered_id; | |
752 | u32 dev_flags; | |
0fd97ccf CH |
753 | #define DF_CONFIGURED 0x00000001 |
754 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
755 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
756 | #define DF_USING_UDEV_PATH 0x00000008 | |
757 | #define DF_USING_ALIAS 0x00000010 | |
eeeb9522 | 758 | #define DF_READ_ONLY 0x00000020 |
c66ac9db NB |
759 | /* Physical device queue depth */ |
760 | u32 queue_depth; | |
761 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
762 | u64 dev_res_bin_isid; | |
c66ac9db | 763 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
764 | u32 dev_index; |
765 | u64 creation_time; | |
ee480683 NB |
766 | atomic_long_t num_resets; |
767 | atomic_long_t num_cmds; | |
768 | atomic_long_t read_bytes; | |
769 | atomic_long_t write_bytes; | |
c66ac9db | 770 | /* Active commands on this virtual SE device */ |
c66ac9db | 771 | atomic_t simple_cmds; |
c66ac9db | 772 | atomic_t dev_ordered_sync; |
07bde79a | 773 | atomic_t dev_qf_count; |
adf653f9 | 774 | u32 export_count; |
c66ac9db | 775 | spinlock_t delayed_cmd_lock; |
c66ac9db | 776 | spinlock_t execute_task_lock; |
c66ac9db | 777 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
778 | unsigned int dev_reservation_flags; |
779 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
780 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
781 | spinlock_t se_port_lock; |
782 | spinlock_t se_tmr_lock; | |
07bde79a | 783 | spinlock_t qf_cmd_lock; |
68ff9b9b | 784 | struct semaphore caw_sem; |
c66ac9db NB |
785 | /* Used for legacy SPC-2 reservationsa */ |
786 | struct se_node_acl *dev_reserved_node_acl; | |
787 | /* Used for ALUA Logical Unit Group membership */ | |
788 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
789 | /* Used for SPC-3 Persistent Reservations */ | |
790 | struct t10_pr_registration *dev_pr_res_holder; | |
791 | struct list_head dev_sep_list; | |
792 | struct list_head dev_tmr_list; | |
af877292 | 793 | struct workqueue_struct *tmr_wq; |
07bde79a | 794 | struct work_struct qf_work_queue; |
c66ac9db | 795 | struct list_head delayed_cmd_list; |
cf572a96 | 796 | struct list_head state_list; |
07bde79a | 797 | struct list_head qf_cmd_list; |
d9ea32bf | 798 | struct list_head g_dev_node; |
c66ac9db NB |
799 | /* Pointer to associated SE HBA */ |
800 | struct se_hba *se_hba; | |
0fd97ccf CH |
801 | /* T10 Inquiry and VPD WWN Information */ |
802 | struct t10_wwn t10_wwn; | |
803 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
804 | struct t10_alua t10_alua; | |
805 | /* T10 SPC-2 + SPC-3 Reservations */ | |
806 | struct t10_reservation t10_pr; | |
807 | struct se_dev_attrib dev_attrib; | |
808 | struct config_group dev_group; | |
809 | struct config_group dev_pr_group; | |
810 | struct se_dev_stat_grps dev_stat_grps; | |
811 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
812 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
813 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
814 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db | 815 | /* Pointer to template of function pointers for transport */ |
0a06d430 | 816 | const struct target_backend_ops *transport; |
c66ac9db NB |
817 | /* Linked list for struct se_hba struct se_device list */ |
818 | struct list_head dev_list; | |
4863e525 | 819 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
820 | /* Protection Information */ |
821 | int prot_length; | |
4cc987ea NB |
822 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
823 | u32 hba_index; | |
824 | struct rcu_head rcu_head; | |
e0a53e70 | 825 | }; |
c66ac9db | 826 | |
c66ac9db NB |
827 | struct se_hba { |
828 | u16 hba_tpgt; | |
829 | u32 hba_id; | |
830 | /* See hba_flags_table */ | |
831 | u32 hba_flags; | |
832 | /* Virtual iSCSI devices attached. */ | |
833 | u32 dev_count; | |
834 | u32 hba_index; | |
c66ac9db NB |
835 | /* Pointer to transport specific host structure. */ |
836 | void *hba_ptr; | |
e3d6f909 | 837 | struct list_head hba_node; |
c66ac9db | 838 | spinlock_t device_lock; |
c66ac9db NB |
839 | struct config_group hba_group; |
840 | struct mutex hba_access_mutex; | |
0a06d430 | 841 | struct target_backend *backend; |
e0a53e70 | 842 | }; |
c66ac9db NB |
843 | |
844 | struct se_tpg_np { | |
1f6fe7cb | 845 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 846 | struct config_group tpg_np_group; |
e0a53e70 | 847 | }; |
c66ac9db | 848 | |
2eafd729 CH |
849 | static inline struct se_tpg_np *to_tpg_np(struct config_item *item) |
850 | { | |
851 | return container_of(to_config_group(item), struct se_tpg_np, | |
852 | tpg_np_group); | |
853 | } | |
854 | ||
c66ac9db | 855 | struct se_portal_group { |
e4aae5af CH |
856 | /* |
857 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. | |
858 | * | |
859 | * Negative values can be used by fabric drivers for internal use TPGs. | |
860 | */ | |
861 | int proto_id; | |
c66ac9db NB |
862 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
863 | atomic_t tpg_pr_ref_count; | |
864 | /* Spinlock for adding/removing ACLed Nodes */ | |
403edd78 | 865 | struct mutex acl_node_mutex; |
c66ac9db NB |
866 | /* Spinlock for adding/removing sessions */ |
867 | spinlock_t session_lock; | |
6bb82612 | 868 | struct mutex tpg_lun_mutex; |
e3d6f909 | 869 | struct list_head se_tpg_node; |
c66ac9db NB |
870 | /* linked list for initiator ACL list */ |
871 | struct list_head acl_node_list; | |
6bb82612 | 872 | struct hlist_head tpg_lun_hlist; |
adf653f9 | 873 | struct se_lun *tpg_virt_lun0; |
25985edc | 874 | /* List of TCM sessions associated wth this TPG */ |
c66ac9db NB |
875 | struct list_head tpg_sess_list; |
876 | /* Pointer to $FABRIC_MOD dependent code */ | |
9ac8928e | 877 | const struct target_core_fabric_ops *se_tpg_tfo; |
c66ac9db NB |
878 | struct se_wwn *se_tpg_wwn; |
879 | struct config_group tpg_group; | |
c66ac9db NB |
880 | struct config_group tpg_lun_group; |
881 | struct config_group tpg_np_group; | |
882 | struct config_group tpg_acl_group; | |
883 | struct config_group tpg_attrib_group; | |
e4b512e7 | 884 | struct config_group tpg_auth_group; |
c66ac9db | 885 | struct config_group tpg_param_group; |
e0a53e70 | 886 | }; |
c66ac9db | 887 | |
2eafd729 CH |
888 | static inline struct se_portal_group *to_tpg(struct config_item *item) |
889 | { | |
890 | return container_of(to_config_group(item), struct se_portal_group, | |
891 | tpg_group); | |
892 | } | |
893 | ||
894 | static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) | |
895 | { | |
896 | return container_of(to_config_group(item), struct se_portal_group, | |
897 | tpg_attrib_group); | |
898 | } | |
899 | ||
900 | static inline struct se_portal_group *auth_to_tpg(struct config_item *item) | |
901 | { | |
902 | return container_of(to_config_group(item), struct se_portal_group, | |
903 | tpg_auth_group); | |
904 | } | |
905 | ||
906 | static inline struct se_portal_group *param_to_tpg(struct config_item *item) | |
907 | { | |
908 | return container_of(to_config_group(item), struct se_portal_group, | |
909 | tpg_param_group); | |
910 | } | |
911 | ||
c66ac9db NB |
912 | struct se_wwn { |
913 | struct target_fabric_configfs *wwn_tf; | |
914 | struct config_group wwn_group; | |
12d23384 | 915 | struct config_group fabric_stat_group; |
e0a53e70 | 916 | }; |
c66ac9db | 917 | |
33940d09 JE |
918 | static inline void atomic_inc_mb(atomic_t *v) |
919 | { | |
920 | smp_mb__before_atomic(); | |
921 | atomic_inc(v); | |
922 | smp_mb__after_atomic(); | |
923 | } | |
924 | ||
925 | static inline void atomic_dec_mb(atomic_t *v) | |
926 | { | |
927 | smp_mb__before_atomic(); | |
928 | atomic_dec(v); | |
929 | smp_mb__after_atomic(); | |
930 | } | |
931 | ||
c66ac9db | 932 | #endif /* TARGET_CORE_BASE_H */ |