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c66ac9db NB |
1 | #ifndef TARGET_CORE_BASE_H |
2 | #define TARGET_CORE_BASE_H | |
3 | ||
8dcf07be BVA |
4 | #include <linux/configfs.h> /* struct config_group */ |
5 | #include <linux/dma-direction.h> /* enum dma_data_direction */ | |
6 | #include <linux/percpu_ida.h> /* struct percpu_ida */ | |
aa829c76 | 7 | #include <linux/percpu-refcount.h> |
8dcf07be | 8 | #include <linux/semaphore.h> /* struct semaphore */ |
b69339ba | 9 | #include <linux/completion.h> |
c66ac9db | 10 | |
2ec1e9e2 | 11 | #define TARGET_CORE_VERSION "v5.0" |
c66ac9db | 12 | |
c66ac9db | 13 | /* |
8d3a8248 BVA |
14 | * Maximum size of a CDB that can be stored in se_cmd without allocating |
15 | * memory dynamically for the CDB. | |
c66ac9db NB |
16 | */ |
17 | #define TCM_MAX_COMMAND_SIZE 32 | |
18 | /* | |
19 | * From include/scsi/scsi_cmnd.h:SCSI_SENSE_BUFFERSIZE, currently | |
20 | * defined 96, but the real limit is 252 (or 260 including the header) | |
21 | */ | |
ba929992 | 22 | #define TRANSPORT_SENSE_BUFFER 96 |
c66ac9db NB |
23 | /* Used by transport_send_check_condition_and_sense() */ |
24 | #define SPC_SENSE_KEY_OFFSET 2 | |
895f3022 | 25 | #define SPC_ADD_SENSE_LEN_OFFSET 7 |
76736db3 SG |
26 | #define SPC_DESC_TYPE_OFFSET 8 |
27 | #define SPC_ADDITIONAL_DESC_LEN_OFFSET 9 | |
28 | #define SPC_VALIDITY_OFFSET 10 | |
c66ac9db NB |
29 | #define SPC_ASC_KEY_OFFSET 12 |
30 | #define SPC_ASCQ_KEY_OFFSET 13 | |
31 | #define TRANSPORT_IQN_LEN 224 | |
32 | /* Used by target_core_store_alua_lu_gp() and target_core_alua_lu_gp_show_attr_members() */ | |
33 | #define LU_GROUP_NAME_BUF 256 | |
34 | /* Used by core_alua_store_tg_pt_gp_info() and target_core_alua_tg_pt_gp_show_attr_members() */ | |
35 | #define TG_PT_GROUP_NAME_BUF 256 | |
36 | /* Used to parse VPD into struct t10_vpd */ | |
703d641d | 37 | #define VPD_TMP_BUF_SIZE 254 |
c66ac9db NB |
38 | /* Used by transport_generic_cmd_sequencer() */ |
39 | #define READ_BLOCK_LEN 6 | |
40 | #define READ_CAP_LEN 8 | |
41 | #define READ_POSITION_LEN 20 | |
42 | #define INQUIRY_LEN 36 | |
43 | /* Used by transport_get_inquiry_vpd_serial() */ | |
44 | #define INQUIRY_VPD_SERIAL_LEN 254 | |
45 | /* Used by transport_get_inquiry_vpd_device_ident() */ | |
46 | #define INQUIRY_VPD_DEVICE_IDENTIFIER_LEN 254 | |
47 | ||
c4795fb2 CH |
48 | /* Attempts before moving from SHORT to LONG */ |
49 | #define PYX_TRANSPORT_WINDOW_CLOSED_THRESHOLD 3 | |
50 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_SHORT 3 /* In milliseconds */ | |
51 | #define PYX_TRANSPORT_WINDOW_CLOSED_WAIT_LONG 10 /* In milliseconds */ | |
52 | ||
53 | #define PYX_TRANSPORT_STATUS_INTERVAL 5 /* In seconds */ | |
54 | ||
c4795fb2 CH |
55 | /* struct se_dev_attrib sanity values */ |
56 | /* Default max_unmap_lba_count */ | |
57 | #define DA_MAX_UNMAP_LBA_COUNT 0 | |
58 | /* Default max_unmap_block_desc_count */ | |
59 | #define DA_MAX_UNMAP_BLOCK_DESC_COUNT 0 | |
60 | /* Default unmap_granularity */ | |
61 | #define DA_UNMAP_GRANULARITY_DEFAULT 0 | |
62 | /* Default unmap_granularity_alignment */ | |
63 | #define DA_UNMAP_GRANULARITY_ALIGNMENT_DEFAULT 0 | |
e6f41633 JP |
64 | /* Default unmap_zeroes_data */ |
65 | #define DA_UNMAP_ZEROES_DATA_DEFAULT 0 | |
773cbaf7 NB |
66 | /* Default max_write_same_len, disabled by default */ |
67 | #define DA_MAX_WRITE_SAME_LEN 0 | |
adfa9570 TB |
68 | /* Use a model alias based on the configfs backend device name */ |
69 | #define DA_EMULATE_MODEL_ALIAS 0 | |
c4795fb2 CH |
70 | /* Emulation for WriteCache and SYNCHRONIZE_CACHE */ |
71 | #define DA_EMULATE_WRITE_CACHE 0 | |
72 | /* Emulation for UNIT ATTENTION Interlock Control */ | |
73 | #define DA_EMULATE_UA_INTLLCK_CTRL 0 | |
74 | /* Emulation for TASK_ABORTED status (TAS) by default */ | |
75 | #define DA_EMULATE_TAS 1 | |
76 | /* Emulation for Thin Provisioning UNMAP using block/blk-lib.c:blkdev_issue_discard() */ | |
77 | #define DA_EMULATE_TPU 0 | |
78 | /* | |
79 | * Emulation for Thin Provisioning WRITE_SAME w/ UNMAP=1 bit using | |
80 | * block/blk-lib.c:blkdev_issue_discard() | |
81 | */ | |
82 | #define DA_EMULATE_TPWS 0 | |
0123a9ec NB |
83 | /* Emulation for CompareAndWrite (AtomicTestandSet) by default */ |
84 | #define DA_EMULATE_CAW 1 | |
d397a445 NB |
85 | /* Emulation for 3rd Party Copy (ExtendedCopy) by default */ |
86 | #define DA_EMULATE_3PC 1 | |
c4795fb2 | 87 | /* No Emulation for PSCSI by default */ |
c4795fb2 CH |
88 | #define DA_EMULATE_ALUA 0 |
89 | /* Enforce SCSI Initiator Port TransportID with 'ISID' for PR */ | |
90 | #define DA_ENFORCE_PR_ISIDS 1 | |
92404e60 NB |
91 | /* Force SPC-3 PR Activate Persistence across Target Power Loss */ |
92 | #define DA_FORCE_PR_APTPL 0 | |
c4795fb2 CH |
93 | #define DA_STATUS_MAX_SECTORS_MIN 16 |
94 | #define DA_STATUS_MAX_SECTORS_MAX 8192 | |
95 | /* By default don't report non-rotating (solid state) medium */ | |
96 | #define DA_IS_NONROT 0 | |
97 | /* Queue Algorithm Modifier default for restricted reordering in control mode page */ | |
98 | #define DA_EMULATE_REST_REORD 0 | |
99 | ||
f82f320e | 100 | #define SE_INQUIRY_BUF 1024 |
c4795fb2 | 101 | #define SE_MODE_PAGE_BUF 512 |
32a8811f | 102 | #define SE_SENSE_BUF 96 |
c4795fb2 | 103 | |
c66ac9db NB |
104 | /* struct se_hba->hba_flags */ |
105 | enum hba_flags_table { | |
106 | HBA_FLAGS_INTERNAL_USE = 0x01, | |
107 | HBA_FLAGS_PSCSI_MODE = 0x02, | |
108 | }; | |
109 | ||
c66ac9db NB |
110 | /* Special transport agnostic struct se_cmd->t_states */ |
111 | enum transport_state_table { | |
112 | TRANSPORT_NO_STATE = 0, | |
113 | TRANSPORT_NEW_CMD = 1, | |
c66ac9db | 114 | TRANSPORT_WRITE_PENDING = 3, |
c66ac9db | 115 | TRANSPORT_PROCESSING = 5, |
35e0e757 | 116 | TRANSPORT_COMPLETE = 6, |
c66ac9db | 117 | TRANSPORT_ISTATE_PROCESSING = 11, |
07bde79a | 118 | TRANSPORT_COMPLETE_QF_WP = 18, |
e057f533 | 119 | TRANSPORT_COMPLETE_QF_OK = 19, |
fa7e25cf | 120 | TRANSPORT_COMPLETE_QF_ERR = 20, |
c66ac9db NB |
121 | }; |
122 | ||
123 | /* Used for struct se_cmd->se_cmd_flags */ | |
124 | enum se_cmd_flags_table { | |
125 | SCF_SUPPORTED_SAM_OPCODE = 0x00000001, | |
126 | SCF_TRANSPORT_TASK_SENSE = 0x00000002, | |
127 | SCF_EMULATED_TASK_SENSE = 0x00000004, | |
64f1db38 CH |
128 | SCF_SCSI_DATA_CDB = 0x00000008, |
129 | SCF_SCSI_TMR_CDB = 0x00000010, | |
64f1db38 CH |
130 | SCF_FUA = 0x00000080, |
131 | SCF_SE_LUN_CMD = 0x00000100, | |
64f1db38 CH |
132 | SCF_BIDI = 0x00000400, |
133 | SCF_SENT_CHECK_CONDITION = 0x00000800, | |
134 | SCF_OVERFLOW_BIT = 0x00001000, | |
135 | SCF_UNDERFLOW_BIT = 0x00002000, | |
68259b5a | 136 | SCF_SEND_DELAYED_TAS = 0x00004000, |
64f1db38 | 137 | SCF_ALUA_NON_OPTIMIZED = 0x00008000, |
64f1db38 | 138 | SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC = 0x00020000, |
a82a9538 NB |
139 | SCF_COMPARE_AND_WRITE = 0x00080000, |
140 | SCF_COMPARE_AND_WRITE_POST = 0x00100000, | |
5835812f | 141 | SCF_PASSTHROUGH_PROT_SG_TO_MEM_NOALLOC = 0x00200000, |
febe562c | 142 | SCF_ACK_KREF = 0x00400000, |
9095adaa | 143 | SCF_USE_CPUID = 0x00800000, |
410c29df | 144 | SCF_TASK_ATTR_SET = 0x01000000, |
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 | */ | |
9efeccac | 151 | typedef unsigned __bitwise sense_reason_t; |
de103c93 | 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), | |
449a1378 | 179 | TCM_COPY_TARGET_DEVICE_NOT_REACHABLE = R(0x18), |
e8642120 DD |
180 | TCM_TOO_MANY_TARGET_DESCS = R(0x19), |
181 | TCM_UNSUPPORTED_TARGET_DESC_TYPE_CODE = R(0x1a), | |
182 | TCM_TOO_MANY_SEGMENT_DESCS = R(0x1b), | |
183 | TCM_UNSUPPORTED_SEGMENT_DESC_TYPE_CODE = R(0x1c), | |
de103c93 | 184 | #undef R |
c66ac9db NB |
185 | }; |
186 | ||
a6360785 NB |
187 | enum target_sc_flags_table { |
188 | TARGET_SCF_BIDI_OP = 0x01, | |
189 | TARGET_SCF_ACK_KREF = 0x02, | |
b0d79946 | 190 | TARGET_SCF_UNKNOWN_SIZE = 0x04, |
9095adaa | 191 | TARGET_SCF_USE_CPUID = 0x08, |
a6360785 NB |
192 | }; |
193 | ||
c4795fb2 CH |
194 | /* fabric independent task management function values */ |
195 | enum tcm_tmreq_table { | |
196 | TMR_ABORT_TASK = 1, | |
197 | TMR_ABORT_TASK_SET = 2, | |
198 | TMR_CLEAR_ACA = 3, | |
199 | TMR_CLEAR_TASK_SET = 4, | |
200 | TMR_LUN_RESET = 5, | |
201 | TMR_TARGET_WARM_RESET = 6, | |
202 | TMR_TARGET_COLD_RESET = 7, | |
e381fe9e | 203 | TMR_UNKNOWN = 0xff, |
c4795fb2 CH |
204 | }; |
205 | ||
206 | /* fabric independent task management response values */ | |
207 | enum tcm_tmrsp_table { | |
a314d700 | 208 | TMR_FUNCTION_FAILED = 0, |
11fee8a7 JE |
209 | TMR_FUNCTION_COMPLETE = 1, |
210 | TMR_TASK_DOES_NOT_EXIST = 2, | |
211 | TMR_LUN_DOES_NOT_EXIST = 3, | |
212 | TMR_TASK_MGMT_FUNCTION_NOT_SUPPORTED = 4, | |
213 | TMR_FUNCTION_REJECTED = 5, | |
c4795fb2 CH |
214 | }; |
215 | ||
e89d15ee NB |
216 | /* |
217 | * Used for target SCSI statistics | |
218 | */ | |
219 | typedef enum { | |
220 | SCSI_INST_INDEX, | |
221 | SCSI_DEVICE_INDEX, | |
222 | SCSI_AUTH_INTR_INDEX, | |
223 | SCSI_INDEX_TYPE_MAX | |
224 | } scsi_index_t; | |
225 | ||
c66ac9db NB |
226 | struct se_cmd; |
227 | ||
c66094bf HR |
228 | struct t10_alua_lba_map_member { |
229 | struct list_head lba_map_mem_list; | |
230 | int lba_map_mem_alua_state; | |
231 | int lba_map_mem_alua_pg_id; | |
232 | }; | |
233 | ||
234 | struct t10_alua_lba_map { | |
235 | u64 lba_map_first_lba; | |
236 | u64 lba_map_last_lba; | |
237 | struct list_head lba_map_list; | |
238 | struct list_head lba_map_mem_list; | |
239 | }; | |
240 | ||
c66ac9db | 241 | struct t10_alua { |
c66ac9db NB |
242 | /* ALUA Target Port Group ID */ |
243 | u16 alua_tg_pt_gps_counter; | |
244 | u32 alua_tg_pt_gps_count; | |
c66094bf HR |
245 | /* Referrals support */ |
246 | spinlock_t lba_map_lock; | |
247 | u32 lba_map_segment_size; | |
248 | u32 lba_map_segment_multiplier; | |
249 | struct list_head lba_map_list; | |
c66ac9db | 250 | spinlock_t tg_pt_gps_lock; |
0fd97ccf | 251 | struct se_device *t10_dev; |
c66ac9db NB |
252 | /* Used for default ALUA Target Port Group */ |
253 | struct t10_alua_tg_pt_gp *default_tg_pt_gp; | |
254 | /* Used for default ALUA Target Port Group ConfigFS group */ | |
255 | struct config_group alua_tg_pt_gps_group; | |
c66ac9db | 256 | struct list_head tg_pt_gps_list; |
e0a53e70 | 257 | }; |
c66ac9db NB |
258 | |
259 | struct t10_alua_lu_gp { | |
260 | u16 lu_gp_id; | |
261 | int lu_gp_valid_id; | |
262 | u32 lu_gp_members; | |
c66ac9db NB |
263 | atomic_t lu_gp_ref_cnt; |
264 | spinlock_t lu_gp_lock; | |
265 | struct config_group lu_gp_group; | |
e3d6f909 | 266 | struct list_head lu_gp_node; |
c66ac9db | 267 | struct list_head lu_gp_mem_list; |
e0a53e70 | 268 | }; |
c66ac9db NB |
269 | |
270 | struct t10_alua_lu_gp_member { | |
5dd7ed2e | 271 | bool lu_gp_assoc; |
c66ac9db NB |
272 | atomic_t lu_gp_mem_ref_cnt; |
273 | spinlock_t lu_gp_mem_lock; | |
274 | struct t10_alua_lu_gp *lu_gp; | |
275 | struct se_device *lu_gp_mem_dev; | |
276 | struct list_head lu_gp_mem_list; | |
e0a53e70 | 277 | }; |
c66ac9db NB |
278 | |
279 | struct t10_alua_tg_pt_gp { | |
280 | u16 tg_pt_gp_id; | |
281 | int tg_pt_gp_valid_id; | |
c0dc941e | 282 | int tg_pt_gp_alua_supported_states; |
dfbce75a HR |
283 | int tg_pt_gp_alua_pending_state; |
284 | int tg_pt_gp_alua_previous_state; | |
c66ac9db NB |
285 | int tg_pt_gp_alua_access_status; |
286 | int tg_pt_gp_alua_access_type; | |
287 | int tg_pt_gp_nonop_delay_msecs; | |
288 | int tg_pt_gp_trans_delay_msecs; | |
125d0119 | 289 | int tg_pt_gp_implicit_trans_secs; |
c66ac9db NB |
290 | int tg_pt_gp_pref; |
291 | int tg_pt_gp_write_metadata; | |
c66ac9db NB |
292 | u32 tg_pt_gp_members; |
293 | atomic_t tg_pt_gp_alua_access_state; | |
294 | atomic_t tg_pt_gp_ref_cnt; | |
295 | spinlock_t tg_pt_gp_lock; | |
296 | struct mutex tg_pt_gp_md_mutex; | |
0fd97ccf | 297 | struct se_device *tg_pt_gp_dev; |
c66ac9db NB |
298 | struct config_group tg_pt_gp_group; |
299 | struct list_head tg_pt_gp_list; | |
adf653f9 CH |
300 | struct list_head tg_pt_gp_lun_list; |
301 | struct se_lun *tg_pt_gp_alua_lun; | |
9c6e164c | 302 | struct se_node_acl *tg_pt_gp_alua_nacl; |
d7175373 | 303 | struct work_struct tg_pt_gp_transition_work; |
9c6e164c | 304 | struct completion *tg_pt_gp_transition_complete; |
e0a53e70 | 305 | }; |
c66ac9db | 306 | |
c66ac9db NB |
307 | struct t10_vpd { |
308 | unsigned char device_identifier[INQUIRY_VPD_DEVICE_IDENTIFIER_LEN]; | |
309 | int protocol_identifier_set; | |
310 | u32 protocol_identifier; | |
311 | u32 device_identifier_code_set; | |
312 | u32 association; | |
313 | u32 device_identifier_type; | |
314 | struct list_head vpd_list; | |
e0a53e70 | 315 | }; |
c66ac9db NB |
316 | |
317 | struct t10_wwn { | |
e3d6f909 AG |
318 | char vendor[8]; |
319 | char model[16]; | |
320 | char revision[4]; | |
321 | char unit_serial[INQUIRY_VPD_SERIAL_LEN]; | |
c66ac9db | 322 | spinlock_t t10_vpd_lock; |
0fd97ccf | 323 | struct se_device *t10_dev; |
c66ac9db NB |
324 | struct config_group t10_wwn_group; |
325 | struct list_head t10_vpd_list; | |
e0a53e70 | 326 | }; |
c66ac9db | 327 | |
c66ac9db NB |
328 | struct t10_pr_registration { |
329 | /* Used for fabrics that contain WWN+ISID */ | |
330 | #define PR_REG_ISID_LEN 16 | |
331 | /* PR_REG_ISID_LEN + ',i,0x' */ | |
332 | #define PR_REG_ISID_ID_LEN (PR_REG_ISID_LEN + 5) | |
333 | char pr_reg_isid[PR_REG_ISID_LEN]; | |
334 | /* Used during APTPL metadata reading */ | |
335 | #define PR_APTPL_MAX_IPORT_LEN 256 | |
336 | unsigned char pr_iport[PR_APTPL_MAX_IPORT_LEN]; | |
337 | /* Used during APTPL metadata reading */ | |
338 | #define PR_APTPL_MAX_TPORT_LEN 256 | |
339 | unsigned char pr_tport[PR_APTPL_MAX_TPORT_LEN]; | |
c66ac9db NB |
340 | u16 pr_aptpl_rpti; |
341 | u16 pr_reg_tpgt; | |
342 | /* Reservation effects all target ports */ | |
343 | int pr_reg_all_tg_pt; | |
344 | /* Activate Persistence across Target Power Loss */ | |
345 | int pr_reg_aptpl; | |
346 | int pr_res_holder; | |
347 | int pr_res_type; | |
348 | int pr_res_scope; | |
349 | /* Used for fabric initiator WWPNs using a ISID */ | |
5dd7ed2e | 350 | bool isid_present_at_reg; |
f2d30680 HR |
351 | u64 pr_res_mapped_lun; |
352 | u64 pr_aptpl_target_lun; | |
79dc9c9e | 353 | u16 tg_pt_sep_rtpi; |
c66ac9db NB |
354 | u32 pr_res_generation; |
355 | u64 pr_reg_bin_isid; | |
356 | u64 pr_res_key; | |
357 | atomic_t pr_res_holders; | |
358 | struct se_node_acl *pr_reg_nacl; | |
79dc9c9e | 359 | /* Used by ALL_TG_PT=1 registration with deve->pr_ref taken */ |
c66ac9db | 360 | struct se_dev_entry *pr_reg_deve; |
c66ac9db NB |
361 | struct list_head pr_reg_list; |
362 | struct list_head pr_reg_abort_list; | |
363 | struct list_head pr_reg_aptpl_list; | |
364 | struct list_head pr_reg_atp_list; | |
365 | struct list_head pr_reg_atp_mem_list; | |
e0a53e70 | 366 | }; |
c66ac9db | 367 | |
e3d6f909 | 368 | struct t10_reservation { |
c66ac9db NB |
369 | /* Reservation effects all target ports */ |
370 | int pr_all_tg_pt; | |
371 | /* Activate Persistence across Target Power Loss enabled | |
372 | * for SCSI device */ | |
373 | int pr_aptpl_active; | |
f161d4b4 | 374 | #define PR_APTPL_BUF_LEN 262144 |
c66ac9db | 375 | u32 pr_generation; |
c66ac9db NB |
376 | spinlock_t registration_lock; |
377 | spinlock_t aptpl_reg_lock; | |
378 | /* | |
379 | * This will always be set by one individual I_T Nexus. | |
380 | * However with all_tg_pt=1, other I_T Nexus from the | |
381 | * same initiator can access PR reg/res info on a different | |
382 | * target port. | |
383 | * | |
384 | * There is also the 'All Registrants' case, where there is | |
385 | * a single *pr_res_holder of the reservation, but all | |
386 | * registrations are considered reservation holders. | |
387 | */ | |
388 | struct se_node_acl *pr_res_holder; | |
389 | struct list_head registration_list; | |
390 | struct list_head aptpl_reg_list; | |
e0a53e70 | 391 | }; |
c66ac9db | 392 | |
c8e31f26 AG |
393 | struct se_tmr_req { |
394 | /* Task Management function to be performed */ | |
395 | u8 function; | |
396 | /* Task Management response to send */ | |
397 | u8 response; | |
398 | int call_transport; | |
399 | /* Reference to ITT that Task Mgmt should be performed */ | |
649ee054 | 400 | u64 ref_task_tag; |
c8e31f26 AG |
401 | void *fabric_tmr_ptr; |
402 | struct se_cmd *task_cmd; | |
c8e31f26 | 403 | struct se_device *tmr_dev; |
c8e31f26 AG |
404 | struct list_head tmr_list; |
405 | }; | |
406 | ||
ce65e5b9 | 407 | enum target_prot_op { |
e70beee7 NB |
408 | TARGET_PROT_NORMAL = 0, |
409 | TARGET_PROT_DIN_INSERT = (1 << 0), | |
410 | TARGET_PROT_DOUT_INSERT = (1 << 1), | |
411 | TARGET_PROT_DIN_STRIP = (1 << 2), | |
412 | TARGET_PROT_DOUT_STRIP = (1 << 3), | |
413 | TARGET_PROT_DIN_PASS = (1 << 4), | |
414 | TARGET_PROT_DOUT_PASS = (1 << 5), | |
ce65e5b9 NB |
415 | }; |
416 | ||
e70beee7 NB |
417 | #define TARGET_PROT_ALL TARGET_PROT_DIN_INSERT | TARGET_PROT_DOUT_INSERT | \ |
418 | TARGET_PROT_DIN_STRIP | TARGET_PROT_DOUT_STRIP | \ | |
419 | TARGET_PROT_DIN_PASS | TARGET_PROT_DOUT_PASS | |
420 | ||
ce65e5b9 NB |
421 | enum target_prot_type { |
422 | TARGET_DIF_TYPE0_PROT, | |
423 | TARGET_DIF_TYPE1_PROT, | |
424 | TARGET_DIF_TYPE2_PROT, | |
425 | TARGET_DIF_TYPE3_PROT, | |
426 | }; | |
427 | ||
19f9361a SG |
428 | enum target_core_dif_check { |
429 | TARGET_DIF_CHECK_GUARD = 0x1 << 0, | |
430 | TARGET_DIF_CHECK_APPTAG = 0x1 << 1, | |
431 | TARGET_DIF_CHECK_REFTAG = 0x1 << 2, | |
432 | }; | |
433 | ||
68d81f40 CH |
434 | /* for sam_task_attr */ |
435 | #define TCM_SIMPLE_TAG 0x20 | |
436 | #define TCM_HEAD_TAG 0x21 | |
437 | #define TCM_ORDERED_TAG 0x22 | |
438 | #define TCM_ACA_TAG 0x24 | |
439 | ||
c66ac9db NB |
440 | struct se_cmd { |
441 | /* SAM response code being sent to initiator */ | |
442 | u8 scsi_status; | |
443 | u8 scsi_asc; | |
444 | u8 scsi_ascq; | |
c66ac9db | 445 | u16 scsi_sense_length; |
915270c3 RD |
446 | unsigned cmd_wait_set:1; |
447 | unsigned unknown_data_length:1; | |
448 | bool state_active:1; | |
649ee054 | 449 | u64 tag; /* SAM command identifier aka task tag */ |
c66ac9db NB |
450 | /* Delay for ALUA Active/NonOptimized state access in milliseconds */ |
451 | int alua_nonop_delay; | |
452 | /* See include/linux/dma-mapping.h */ | |
453 | enum dma_data_direction data_direction; | |
454 | /* For SAM Task Attribute */ | |
455 | int sam_task_attr; | |
c0add7fd NB |
456 | /* Used for se_sess->sess_tag_pool */ |
457 | unsigned int map_tag; | |
c66ac9db NB |
458 | /* Transport protocol dependent state, see transport_state_table */ |
459 | enum transport_state_table t_state; | |
c66ac9db NB |
460 | /* See se_cmd_flags_table */ |
461 | u32 se_cmd_flags; | |
c66ac9db NB |
462 | /* Total size in bytes associated with command */ |
463 | u32 data_length; | |
c66ac9db | 464 | u32 residual_count; |
f2d30680 | 465 | u64 orig_fe_lun; |
c66ac9db NB |
466 | /* Persistent Reservation key */ |
467 | u64 pr_res_key; | |
c66ac9db NB |
468 | /* Used for sense data */ |
469 | void *sense_buffer; | |
5951146d | 470 | struct list_head se_delayed_node; |
07bde79a | 471 | struct list_head se_qf_node; |
c66ac9db | 472 | struct se_device *se_dev; |
c66ac9db NB |
473 | struct se_lun *se_lun; |
474 | /* Only used for internal passthrough and legacy TCM fabric modules */ | |
475 | struct se_session *se_sess; | |
476 | struct se_tmr_req *se_tmr_req; | |
a17f091d NB |
477 | struct list_head se_cmd_list; |
478 | struct completion cmd_wait_comp; | |
9ac8928e | 479 | const struct target_core_fabric_ops *se_tfo; |
de103c93 | 480 | sense_reason_t (*execute_cmd)(struct se_cmd *); |
057085e5 | 481 | sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool, int *); |
7a971b1b | 482 | void *protocol_data; |
07bde79a | 483 | |
a1d8b49a AG |
484 | unsigned char *t_task_cdb; |
485 | unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; | |
486 | unsigned long long t_task_lba; | |
a82a9538 | 487 | unsigned int t_task_nolb; |
7d680f3b CH |
488 | unsigned int transport_state; |
489 | #define CMD_T_ABORTED (1 << 0) | |
490 | #define CMD_T_ACTIVE (1 << 1) | |
491 | #define CMD_T_COMPLETE (1 << 2) | |
7d680f3b CH |
492 | #define CMD_T_SENT (1 << 4) |
493 | #define CMD_T_STOP (1 << 5) | |
0f4a9431 NB |
494 | #define CMD_T_TAS (1 << 10) |
495 | #define CMD_T_FABRIC_STOP (1 << 11) | |
a1d8b49a | 496 | spinlock_t t_state_lock; |
915270c3 | 497 | struct kref cmd_kref; |
a1d8b49a | 498 | struct completion t_transport_stop_comp; |
05d1c7c0 | 499 | |
35e0e757 CH |
500 | struct work_struct work; |
501 | ||
ec98f782 | 502 | struct scatterlist *t_data_sg; |
47e459e6 | 503 | struct scatterlist *t_data_sg_orig; |
ec98f782 | 504 | unsigned int t_data_nents; |
47e459e6 | 505 | unsigned int t_data_nents_orig; |
4949314c | 506 | void *t_data_vmap; |
ec98f782 AG |
507 | struct scatterlist *t_bidi_data_sg; |
508 | unsigned int t_bidi_data_nents; | |
509 | ||
915270c3 RD |
510 | /* Used for lun->lun_ref counting */ |
511 | int lun_ref_active; | |
512 | ||
cf572a96 | 513 | struct list_head state_list; |
cf572a96 | 514 | |
5787cacd CH |
515 | /* backend private data */ |
516 | void *priv; | |
5277797d | 517 | |
ce65e5b9 NB |
518 | /* DIF related members */ |
519 | enum target_prot_op prot_op; | |
520 | enum target_prot_type prot_type; | |
19f9361a | 521 | u8 prot_checks; |
915270c3 | 522 | bool prot_pto; |
ce65e5b9 NB |
523 | u32 prot_length; |
524 | u32 reftag_seed; | |
525 | struct scatterlist *t_prot_sg; | |
526 | unsigned int t_prot_nents; | |
ce65e5b9 | 527 | sense_reason_t pi_err; |
76736db3 | 528 | sector_t bad_sector; |
fb3269ba | 529 | int cpuid; |
e0a53e70 | 530 | }; |
c66ac9db | 531 | |
c66ac9db NB |
532 | struct se_ua { |
533 | u8 ua_asc; | |
534 | u8 ua_ascq; | |
c66ac9db | 535 | struct list_head ua_nacl_list; |
e0a53e70 | 536 | }; |
c66ac9db NB |
537 | |
538 | struct se_node_acl { | |
539 | char initiatorname[TRANSPORT_IQN_LEN]; | |
540 | /* Used to signal demo mode created ACL, disabled by default */ | |
5dd7ed2e | 541 | bool dynamic_node_acl; |
01d4d673 | 542 | bool dynamic_stop; |
c66ac9db NB |
543 | u32 queue_depth; |
544 | u32 acl_index; | |
bffb5128 | 545 | enum target_prot_type saved_prot_type; |
79e62fc3 AG |
546 | #define MAX_ACL_TAG_SIZE 64 |
547 | char acl_tag[MAX_ACL_TAG_SIZE]; | |
c66ac9db NB |
548 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
549 | atomic_t acl_pr_ref_count; | |
29a05dee | 550 | struct hlist_head lun_entry_hlist; |
c66ac9db NB |
551 | struct se_session *nacl_sess; |
552 | struct se_portal_group *se_tpg; | |
29a05dee | 553 | struct mutex lun_entry_mutex; |
c66ac9db NB |
554 | spinlock_t nacl_sess_lock; |
555 | struct config_group acl_group; | |
556 | struct config_group acl_attrib_group; | |
557 | struct config_group acl_auth_group; | |
558 | struct config_group acl_param_group; | |
12d23384 | 559 | struct config_group acl_fabric_stat_group; |
c66ac9db NB |
560 | struct list_head acl_list; |
561 | struct list_head acl_sess_list; | |
01468346 | 562 | struct completion acl_free_comp; |
afb999ff | 563 | struct kref acl_kref; |
e0a53e70 | 564 | }; |
c66ac9db | 565 | |
2eafd729 CH |
566 | static inline struct se_node_acl *acl_to_nacl(struct config_item *item) |
567 | { | |
568 | return container_of(to_config_group(item), struct se_node_acl, | |
569 | acl_group); | |
570 | } | |
571 | ||
572 | static inline struct se_node_acl *attrib_to_nacl(struct config_item *item) | |
573 | { | |
574 | return container_of(to_config_group(item), struct se_node_acl, | |
575 | acl_attrib_group); | |
576 | } | |
577 | ||
578 | static inline struct se_node_acl *auth_to_nacl(struct config_item *item) | |
579 | { | |
580 | return container_of(to_config_group(item), struct se_node_acl, | |
581 | acl_auth_group); | |
582 | } | |
583 | ||
584 | static inline struct se_node_acl *param_to_nacl(struct config_item *item) | |
585 | { | |
586 | return container_of(to_config_group(item), struct se_node_acl, | |
587 | acl_param_group); | |
588 | } | |
589 | ||
590 | static inline struct se_node_acl *fabric_stat_to_nacl(struct config_item *item) | |
591 | { | |
592 | return container_of(to_config_group(item), struct se_node_acl, | |
593 | acl_fabric_stat_group); | |
594 | } | |
595 | ||
c66ac9db | 596 | struct se_session { |
5f655e8d | 597 | unsigned sess_tearing_down:1; |
c66ac9db | 598 | u64 sess_bin_isid; |
e70beee7 | 599 | enum target_prot_op sup_prot_ops; |
38b57f82 | 600 | enum target_prot_type sess_prot_type; |
c66ac9db NB |
601 | struct se_node_acl *se_node_acl; |
602 | struct se_portal_group *se_tpg; | |
603 | void *fabric_sess_ptr; | |
604 | struct list_head sess_list; | |
605 | struct list_head sess_acl_list; | |
a17f091d | 606 | struct list_head sess_cmd_list; |
9b31a328 | 607 | struct list_head sess_wait_list; |
a17f091d | 608 | spinlock_t sess_cmd_lock; |
c0add7fd NB |
609 | void *sess_cmd_map; |
610 | struct percpu_ida sess_tag_pool; | |
e0a53e70 | 611 | }; |
c66ac9db | 612 | |
c66ac9db NB |
613 | struct se_device; |
614 | struct se_transform_info; | |
615 | struct scatterlist; | |
616 | ||
12d23384 NB |
617 | struct se_ml_stat_grps { |
618 | struct config_group stat_group; | |
619 | struct config_group scsi_auth_intr_group; | |
620 | struct config_group scsi_att_intr_port_group; | |
621 | }; | |
622 | ||
c66ac9db | 623 | struct se_lun_acl { |
f2d30680 | 624 | u64 mapped_lun; |
c66ac9db NB |
625 | struct se_node_acl *se_lun_nacl; |
626 | struct se_lun *se_lun; | |
c66ac9db | 627 | struct config_group se_lun_group; |
12d23384 | 628 | struct se_ml_stat_grps ml_stat_grps; |
e0a53e70 | 629 | }; |
c66ac9db NB |
630 | |
631 | struct se_dev_entry { | |
f2d30680 | 632 | u64 mapped_lun; |
c66ac9db NB |
633 | u64 pr_res_key; |
634 | u64 creation_time; | |
03a68b44 | 635 | bool lun_access_ro; |
c66ac9db | 636 | u32 attach_count; |
29a05dee NB |
637 | atomic_long_t total_cmds; |
638 | atomic_long_t read_bytes; | |
639 | atomic_long_t write_bytes; | |
c66ac9db NB |
640 | atomic_t ua_count; |
641 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ | |
29a05dee NB |
642 | struct kref pr_kref; |
643 | struct completion pr_comp; | |
644 | struct se_lun_acl __rcu *se_lun_acl; | |
c66ac9db | 645 | spinlock_t ua_lock; |
29a05dee | 646 | struct se_lun __rcu *se_lun; |
80bfdfa9 NB |
647 | #define DEF_PR_REG_ACTIVE 1 |
648 | unsigned long deve_flags; | |
c66ac9db | 649 | struct list_head alua_port_list; |
adf653f9 | 650 | struct list_head lun_link; |
c66ac9db | 651 | struct list_head ua_list; |
29a05dee NB |
652 | struct hlist_node link; |
653 | struct rcu_head rcu_head; | |
e0a53e70 | 654 | }; |
c66ac9db | 655 | |
c66ac9db | 656 | struct se_dev_attrib { |
adfa9570 | 657 | int emulate_model_alias; |
c66ac9db NB |
658 | int emulate_dpo; |
659 | int emulate_fua_write; | |
660 | int emulate_fua_read; | |
661 | int emulate_write_cache; | |
662 | int emulate_ua_intlck_ctrl; | |
663 | int emulate_tas; | |
664 | int emulate_tpu; | |
665 | int emulate_tpws; | |
0123a9ec | 666 | int emulate_caw; |
d397a445 | 667 | int emulate_3pc; |
ce65e5b9 NB |
668 | int pi_prot_format; |
669 | enum target_prot_type pi_prot_type; | |
670 | enum target_prot_type hw_pi_prot_type; | |
c66ac9db | 671 | int enforce_pr_isids; |
92404e60 | 672 | int force_pr_aptpl; |
e22a7f07 | 673 | int is_nonrot; |
5de619a3 | 674 | int emulate_rest_reord; |
e6f41633 | 675 | int unmap_zeroes_data; |
c66ac9db NB |
676 | u32 hw_block_size; |
677 | u32 block_size; | |
678 | u32 hw_max_sectors; | |
c66ac9db NB |
679 | u32 optimal_sectors; |
680 | u32 hw_queue_depth; | |
681 | u32 queue_depth; | |
c66ac9db NB |
682 | u32 max_unmap_lba_count; |
683 | u32 max_unmap_block_desc_count; | |
684 | u32 unmap_granularity; | |
685 | u32 unmap_granularity_alignment; | |
773cbaf7 | 686 | u32 max_write_same_len; |
95cadace | 687 | u32 max_bytes_per_io; |
0fd97ccf | 688 | struct se_device *da_dev; |
c66ac9db | 689 | struct config_group da_group; |
e0a53e70 | 690 | }; |
c66ac9db | 691 | |
4863e525 NB |
692 | struct se_port_stat_grps { |
693 | struct config_group stat_group; | |
694 | struct config_group scsi_port_group; | |
695 | struct config_group scsi_tgt_port_group; | |
696 | struct config_group scsi_transport_group; | |
697 | }; | |
698 | ||
adf653f9 | 699 | struct scsi_port_stats { |
4cc987ea NB |
700 | atomic_long_t cmd_pdus; |
701 | atomic_long_t tx_data_octets; | |
702 | atomic_long_t rx_data_octets; | |
adf653f9 CH |
703 | }; |
704 | ||
4863e525 | 705 | struct se_lun { |
f2d30680 | 706 | u64 unpacked_lun; |
4863e525 NB |
707 | #define SE_LUN_LINK_MAGIC 0xffff7771 |
708 | u32 lun_link_magic; | |
49cb77e2 | 709 | bool lun_shutdown; |
03a68b44 | 710 | bool lun_access_ro; |
29a05dee | 711 | u32 lun_index; |
f2d30680 HR |
712 | |
713 | /* RELATIVE TARGET PORT IDENTIFER */ | |
714 | u16 lun_rtpi; | |
4863e525 | 715 | atomic_t lun_acl_count; |
adf653f9 CH |
716 | struct se_device __rcu *lun_se_dev; |
717 | ||
718 | struct list_head lun_deve_list; | |
719 | spinlock_t lun_deve_lock; | |
720 | ||
721 | /* ALUA state */ | |
722 | int lun_tg_pt_secondary_stat; | |
723 | int lun_tg_pt_secondary_write_md; | |
724 | atomic_t lun_tg_pt_secondary_offline; | |
725 | struct mutex lun_tg_pt_md_mutex; | |
726 | ||
727 | /* ALUA target port group linkage */ | |
728 | struct list_head lun_tg_pt_gp_link; | |
729 | struct t10_alua_tg_pt_gp *lun_tg_pt_gp; | |
730 | spinlock_t lun_tg_pt_gp_lock; | |
731 | ||
adf653f9 CH |
732 | struct se_portal_group *lun_tpg; |
733 | struct scsi_port_stats lun_stats; | |
4863e525 NB |
734 | struct config_group lun_group; |
735 | struct se_port_stat_grps port_stat_grps; | |
736 | struct completion lun_ref_comp; | |
bd4e2d29 | 737 | struct completion lun_shutdown_comp; |
4863e525 | 738 | struct percpu_ref lun_ref; |
adf653f9 | 739 | struct list_head lun_dev_link; |
6bb82612 NB |
740 | struct hlist_node link; |
741 | struct rcu_head rcu_head; | |
4863e525 NB |
742 | }; |
743 | ||
12d23384 NB |
744 | struct se_dev_stat_grps { |
745 | struct config_group stat_group; | |
746 | struct config_group scsi_dev_group; | |
747 | struct config_group scsi_tgt_dev_group; | |
748 | struct config_group scsi_lu_group; | |
749 | }; | |
750 | ||
c66ac9db | 751 | struct se_device { |
0ff87549 NB |
752 | #define SE_DEV_LINK_MAGIC 0xfeeddeef |
753 | u32 dev_link_magic; | |
c66ac9db NB |
754 | /* RELATIVE TARGET PORT IDENTIFER Counter */ |
755 | u16 dev_rpti_counter; | |
756 | /* Used for SAM Task Attribute ordering */ | |
757 | u32 dev_cur_ordered_id; | |
758 | u32 dev_flags; | |
0fd97ccf CH |
759 | #define DF_CONFIGURED 0x00000001 |
760 | #define DF_FIRMWARE_VPD_UNIT_SERIAL 0x00000002 | |
761 | #define DF_EMULATED_VPD_UNIT_SERIAL 0x00000004 | |
762 | #define DF_USING_UDEV_PATH 0x00000008 | |
763 | #define DF_USING_ALIAS 0x00000010 | |
eeeb9522 | 764 | #define DF_READ_ONLY 0x00000020 |
c66ac9db NB |
765 | /* Physical device queue depth */ |
766 | u32 queue_depth; | |
767 | /* Used for SPC-2 reservations enforce of ISIDs */ | |
768 | u64 dev_res_bin_isid; | |
c66ac9db | 769 | /* Pointer to transport specific device structure */ |
c66ac9db NB |
770 | u32 dev_index; |
771 | u64 creation_time; | |
ee480683 | 772 | atomic_long_t num_resets; |
c87ba9c4 NB |
773 | atomic_long_t aborts_complete; |
774 | atomic_long_t aborts_no_task; | |
ee480683 NB |
775 | atomic_long_t num_cmds; |
776 | atomic_long_t read_bytes; | |
777 | atomic_long_t write_bytes; | |
c66ac9db | 778 | /* Active commands on this virtual SE device */ |
c66ac9db | 779 | atomic_t simple_cmds; |
c66ac9db | 780 | atomic_t dev_ordered_sync; |
07bde79a | 781 | atomic_t dev_qf_count; |
adf653f9 | 782 | u32 export_count; |
c66ac9db | 783 | spinlock_t delayed_cmd_lock; |
c66ac9db | 784 | spinlock_t execute_task_lock; |
c66ac9db | 785 | spinlock_t dev_reservation_lock; |
0fd97ccf CH |
786 | unsigned int dev_reservation_flags; |
787 | #define DRF_SPC2_RESERVATIONS 0x00000001 | |
788 | #define DRF_SPC2_RESERVATIONS_WITH_ISID 0x00000002 | |
c66ac9db NB |
789 | spinlock_t se_port_lock; |
790 | spinlock_t se_tmr_lock; | |
07bde79a | 791 | spinlock_t qf_cmd_lock; |
68ff9b9b | 792 | struct semaphore caw_sem; |
c66ac9db NB |
793 | /* Used for legacy SPC-2 reservationsa */ |
794 | struct se_node_acl *dev_reserved_node_acl; | |
795 | /* Used for ALUA Logical Unit Group membership */ | |
796 | struct t10_alua_lu_gp_member *dev_alua_lu_gp_mem; | |
797 | /* Used for SPC-3 Persistent Reservations */ | |
798 | struct t10_pr_registration *dev_pr_res_holder; | |
799 | struct list_head dev_sep_list; | |
800 | struct list_head dev_tmr_list; | |
af877292 | 801 | struct workqueue_struct *tmr_wq; |
07bde79a | 802 | struct work_struct qf_work_queue; |
c66ac9db | 803 | struct list_head delayed_cmd_list; |
cf572a96 | 804 | struct list_head state_list; |
07bde79a | 805 | struct list_head qf_cmd_list; |
d9ea32bf | 806 | struct list_head g_dev_node; |
c66ac9db NB |
807 | /* Pointer to associated SE HBA */ |
808 | struct se_hba *se_hba; | |
0fd97ccf CH |
809 | /* T10 Inquiry and VPD WWN Information */ |
810 | struct t10_wwn t10_wwn; | |
811 | /* T10 Asymmetric Logical Unit Assignment for Target Ports */ | |
812 | struct t10_alua t10_alua; | |
813 | /* T10 SPC-2 + SPC-3 Reservations */ | |
814 | struct t10_reservation t10_pr; | |
815 | struct se_dev_attrib dev_attrib; | |
816 | struct config_group dev_group; | |
817 | struct config_group dev_pr_group; | |
818 | struct se_dev_stat_grps dev_stat_grps; | |
819 | #define SE_DEV_ALIAS_LEN 512 /* must be less than PAGE_SIZE */ | |
820 | unsigned char dev_alias[SE_DEV_ALIAS_LEN]; | |
821 | #define SE_UDEV_PATH_LEN 512 /* must be less than PAGE_SIZE */ | |
822 | unsigned char udev_path[SE_UDEV_PATH_LEN]; | |
c66ac9db | 823 | /* Pointer to template of function pointers for transport */ |
0a06d430 | 824 | const struct target_backend_ops *transport; |
c66ac9db NB |
825 | /* Linked list for struct se_hba struct se_device list */ |
826 | struct list_head dev_list; | |
4863e525 | 827 | struct se_lun xcopy_lun; |
ce65e5b9 NB |
828 | /* Protection Information */ |
829 | int prot_length; | |
4cc987ea NB |
830 | /* For se_lun->lun_se_dev RCU read-side critical access */ |
831 | u32 hba_index; | |
832 | struct rcu_head rcu_head; | |
e0a53e70 | 833 | }; |
c66ac9db | 834 | |
c66ac9db NB |
835 | struct se_hba { |
836 | u16 hba_tpgt; | |
837 | u32 hba_id; | |
838 | /* See hba_flags_table */ | |
839 | u32 hba_flags; | |
840 | /* Virtual iSCSI devices attached. */ | |
841 | u32 dev_count; | |
842 | u32 hba_index; | |
c66ac9db NB |
843 | /* Pointer to transport specific host structure. */ |
844 | void *hba_ptr; | |
e3d6f909 | 845 | struct list_head hba_node; |
c66ac9db | 846 | spinlock_t device_lock; |
c66ac9db NB |
847 | struct config_group hba_group; |
848 | struct mutex hba_access_mutex; | |
0a06d430 | 849 | struct target_backend *backend; |
e0a53e70 | 850 | }; |
c66ac9db NB |
851 | |
852 | struct se_tpg_np { | |
1f6fe7cb | 853 | struct se_portal_group *tpg_np_parent; |
c66ac9db | 854 | struct config_group tpg_np_group; |
e0a53e70 | 855 | }; |
c66ac9db | 856 | |
2eafd729 CH |
857 | static inline struct se_tpg_np *to_tpg_np(struct config_item *item) |
858 | { | |
859 | return container_of(to_config_group(item), struct se_tpg_np, | |
860 | tpg_np_group); | |
861 | } | |
862 | ||
c66ac9db | 863 | struct se_portal_group { |
e4aae5af CH |
864 | /* |
865 | * PROTOCOL IDENTIFIER value per SPC4, 7.5.1. | |
866 | * | |
867 | * Negative values can be used by fabric drivers for internal use TPGs. | |
868 | */ | |
869 | int proto_id; | |
c66ac9db NB |
870 | /* Used for PR SPEC_I_PT=1 and REGISTER_AND_MOVE */ |
871 | atomic_t tpg_pr_ref_count; | |
872 | /* Spinlock for adding/removing ACLed Nodes */ | |
403edd78 | 873 | struct mutex acl_node_mutex; |
c66ac9db NB |
874 | /* Spinlock for adding/removing sessions */ |
875 | spinlock_t session_lock; | |
6bb82612 | 876 | struct mutex tpg_lun_mutex; |
e3d6f909 | 877 | struct list_head se_tpg_node; |
c66ac9db NB |
878 | /* linked list for initiator ACL list */ |
879 | struct list_head acl_node_list; | |
6bb82612 | 880 | struct hlist_head tpg_lun_hlist; |
adf653f9 | 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; | |
c66ac9db NB |
888 | struct config_group tpg_lun_group; |
889 | struct config_group tpg_np_group; | |
890 | struct config_group tpg_acl_group; | |
891 | struct config_group tpg_attrib_group; | |
e4b512e7 | 892 | struct config_group tpg_auth_group; |
c66ac9db | 893 | struct config_group tpg_param_group; |
e0a53e70 | 894 | }; |
c66ac9db | 895 | |
2eafd729 CH |
896 | static inline struct se_portal_group *to_tpg(struct config_item *item) |
897 | { | |
898 | return container_of(to_config_group(item), struct se_portal_group, | |
899 | tpg_group); | |
900 | } | |
901 | ||
902 | static inline struct se_portal_group *attrib_to_tpg(struct config_item *item) | |
903 | { | |
904 | return container_of(to_config_group(item), struct se_portal_group, | |
905 | tpg_attrib_group); | |
906 | } | |
907 | ||
908 | static inline struct se_portal_group *auth_to_tpg(struct config_item *item) | |
909 | { | |
910 | return container_of(to_config_group(item), struct se_portal_group, | |
911 | tpg_auth_group); | |
912 | } | |
913 | ||
914 | static inline struct se_portal_group *param_to_tpg(struct config_item *item) | |
915 | { | |
916 | return container_of(to_config_group(item), struct se_portal_group, | |
917 | tpg_param_group); | |
918 | } | |
919 | ||
c66ac9db NB |
920 | struct se_wwn { |
921 | struct target_fabric_configfs *wwn_tf; | |
2bce1a6d | 922 | void *priv; |
c66ac9db | 923 | struct config_group wwn_group; |
12d23384 | 924 | struct config_group fabric_stat_group; |
e0a53e70 | 925 | }; |
c66ac9db | 926 | |
33940d09 JE |
927 | static inline void atomic_inc_mb(atomic_t *v) |
928 | { | |
929 | smp_mb__before_atomic(); | |
930 | atomic_inc(v); | |
931 | smp_mb__after_atomic(); | |
932 | } | |
933 | ||
934 | static inline void atomic_dec_mb(atomic_t *v) | |
935 | { | |
936 | smp_mb__before_atomic(); | |
937 | atomic_dec(v); | |
938 | smp_mb__after_atomic(); | |
939 | } | |
940 | ||
c66ac9db | 941 | #endif /* TARGET_CORE_BASE_H */ |