1 #ifndef ISCSI_TARGET_CORE_H
2 #define ISCSI_TARGET_CORE_H
5 #include <linux/configfs.h>
8 #include <scsi/scsi_cmnd.h>
9 #include <scsi/iscsi_proto.h>
10 #include <target/target_core_base.h>
12 #define ISCSIT_VERSION "v4.1.0-rc2"
13 #define ISCSI_MAX_DATASN_MISSING_COUNT 16
14 #define ISCSI_TX_THREAD_TCP_TIMEOUT 2
15 #define ISCSI_RX_THREAD_TCP_TIMEOUT 2
16 #define SECONDS_FOR_ASYNC_LOGOUT 10
17 #define SECONDS_FOR_ASYNC_TEXT 10
18 #define SECONDS_FOR_LOGOUT_COMP 15
19 #define WHITE_SPACE " \t\v\f\n\r"
21 /* struct iscsi_node_attrib sanity values */
22 #define NA_DATAOUT_TIMEOUT 3
23 #define NA_DATAOUT_TIMEOUT_MAX 60
24 #define NA_DATAOUT_TIMEOUT_MIX 2
25 #define NA_DATAOUT_TIMEOUT_RETRIES 5
26 #define NA_DATAOUT_TIMEOUT_RETRIES_MAX 15
27 #define NA_DATAOUT_TIMEOUT_RETRIES_MIN 1
28 #define NA_NOPIN_TIMEOUT 5
29 #define NA_NOPIN_TIMEOUT_MAX 60
30 #define NA_NOPIN_TIMEOUT_MIN 3
31 #define NA_NOPIN_RESPONSE_TIMEOUT 5
32 #define NA_NOPIN_RESPONSE_TIMEOUT_MAX 60
33 #define NA_NOPIN_RESPONSE_TIMEOUT_MIN 3
34 #define NA_RANDOM_DATAIN_PDU_OFFSETS 0
35 #define NA_RANDOM_DATAIN_SEQ_OFFSETS 0
36 #define NA_RANDOM_R2T_OFFSETS 0
37 #define NA_DEFAULT_ERL 0
38 #define NA_DEFAULT_ERL_MAX 2
39 #define NA_DEFAULT_ERL_MIN 0
41 /* struct iscsi_tpg_attrib sanity values */
42 #define TA_AUTHENTICATION 1
43 #define TA_LOGIN_TIMEOUT 15
44 #define TA_LOGIN_TIMEOUT_MAX 30
45 #define TA_LOGIN_TIMEOUT_MIN 5
46 #define TA_NETIF_TIMEOUT 2
47 #define TA_NETIF_TIMEOUT_MAX 15
48 #define TA_NETIF_TIMEOUT_MIN 2
49 #define TA_GENERATE_NODE_ACLS 0
50 #define TA_DEFAULT_CMDSN_DEPTH 16
51 #define TA_DEFAULT_CMDSN_DEPTH_MAX 512
52 #define TA_DEFAULT_CMDSN_DEPTH_MIN 1
53 #define TA_CACHE_DYNAMIC_ACLS 0
54 /* Enabled by default in demo mode (generic_node_acls=1) */
55 #define TA_DEMO_MODE_WRITE_PROTECT 1
56 /* Disabled by default in production mode w/ explict ACLs */
57 #define TA_PROD_MODE_WRITE_PROTECT 0
58 #define TA_CACHE_CORE_NPS 0
61 #define ISCSI_IOV_DATA_BUFFER 5
63 enum tpg_np_network_transport_table {
72 /* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
73 enum target_conn_state_table {
74 TARG_CONN_STATE_FREE = 0x1,
75 TARG_CONN_STATE_XPT_UP = 0x3,
76 TARG_CONN_STATE_IN_LOGIN = 0x4,
77 TARG_CONN_STATE_LOGGED_IN = 0x5,
78 TARG_CONN_STATE_IN_LOGOUT = 0x6,
79 TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
80 TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
83 /* RFC-3720 7.3.2 Session State Diagram for a Target */
84 enum target_sess_state_table {
85 TARG_SESS_STATE_FREE = 0x1,
86 TARG_SESS_STATE_ACTIVE = 0x2,
87 TARG_SESS_STATE_LOGGED_IN = 0x3,
88 TARG_SESS_STATE_FAILED = 0x4,
89 TARG_SESS_STATE_IN_CONTINUE = 0x5,
92 /* struct iscsi_data_count->type */
93 enum data_count_type {
98 /* struct iscsi_datain_req->dr_complete */
99 enum datain_req_comp_table {
100 DATAIN_COMPLETE_NORMAL = 1,
101 DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
102 DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
105 /* struct iscsi_datain_req->recovery */
106 enum datain_req_rec_table {
107 DATAIN_WITHIN_COMMAND_RECOVERY = 1,
108 DATAIN_CONNECTION_RECOVERY = 2,
111 /* struct iscsi_portal_group->state */
112 enum tpg_state_table {
114 TPG_STATE_ACTIVE = 1,
115 TPG_STATE_INACTIVE = 2,
116 TPG_STATE_COLD_RESET = 3,
119 /* struct iscsi_tiqn->tiqn_state */
120 enum tiqn_state_table {
121 TIQN_STATE_ACTIVE = 1,
122 TIQN_STATE_SHUTDOWN = 2,
125 /* struct iscsi_cmd->cmd_flags */
126 enum cmd_flags_table {
127 ICF_GOT_LAST_DATAOUT = 0x00000001,
128 ICF_GOT_DATACK_SNACK = 0x00000002,
129 ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
130 ICF_SENT_LAST_R2T = 0x00000008,
131 ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
132 ICF_CONTIG_MEMORY = 0x00000020,
133 ICF_ATTACHED_TO_RQUEUE = 0x00000040,
134 ICF_OOO_CMDSN = 0x00000080,
135 ICF_REJECT_FAIL_CONN = 0x00000100,
138 /* struct iscsi_cmd->i_state */
139 enum cmd_i_state_table {
142 ISTATE_DEFERRED_CMD = 2,
143 ISTATE_UNSOLICITED_DATA = 3,
144 ISTATE_RECEIVE_DATAOUT = 4,
145 ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
146 ISTATE_RECEIVED_LAST_DATAOUT = 6,
147 ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
148 ISTATE_IN_CONNECTION_RECOVERY = 8,
149 ISTATE_RECEIVED_TASKMGT = 9,
150 ISTATE_SEND_ASYNCMSG = 10,
151 ISTATE_SENT_ASYNCMSG = 11,
152 ISTATE_SEND_DATAIN = 12,
153 ISTATE_SEND_LAST_DATAIN = 13,
154 ISTATE_SENT_LAST_DATAIN = 14,
155 ISTATE_SEND_LOGOUTRSP = 15,
156 ISTATE_SENT_LOGOUTRSP = 16,
157 ISTATE_SEND_NOPIN = 17,
158 ISTATE_SENT_NOPIN = 18,
159 ISTATE_SEND_REJECT = 19,
160 ISTATE_SENT_REJECT = 20,
161 ISTATE_SEND_R2T = 21,
162 ISTATE_SENT_R2T = 22,
163 ISTATE_SEND_R2T_RECOVERY = 23,
164 ISTATE_SENT_R2T_RECOVERY = 24,
165 ISTATE_SEND_LAST_R2T = 25,
166 ISTATE_SENT_LAST_R2T = 26,
167 ISTATE_SEND_LAST_R2T_RECOVERY = 27,
168 ISTATE_SENT_LAST_R2T_RECOVERY = 28,
169 ISTATE_SEND_STATUS = 29,
170 ISTATE_SEND_STATUS_BROKEN_PC = 30,
171 ISTATE_SENT_STATUS = 31,
172 ISTATE_SEND_STATUS_RECOVERY = 32,
173 ISTATE_SENT_STATUS_RECOVERY = 33,
174 ISTATE_SEND_TASKMGTRSP = 34,
175 ISTATE_SENT_TASKMGTRSP = 35,
176 ISTATE_SEND_TEXTRSP = 36,
177 ISTATE_SENT_TEXTRSP = 37,
178 ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
179 ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
180 ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
185 /* Used for iscsi_recover_cmdsn() return values */
186 enum recover_cmdsn_ret_table {
187 CMDSN_ERROR_CANNOT_RECOVER = -1,
188 CMDSN_NORMAL_OPERATION = 0,
189 CMDSN_LOWER_THAN_EXP = 1,
190 CMDSN_HIGHER_THAN_EXP = 2,
193 /* Used for iscsi_handle_immediate_data() return values */
194 enum immedate_data_ret_table {
195 IMMEDIATE_DATA_CANNOT_RECOVER = -1,
196 IMMEDIATE_DATA_NORMAL_OPERATION = 0,
197 IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
200 /* Used for iscsi_decide_dataout_action() return values */
201 enum dataout_action_ret_table {
202 DATAOUT_CANNOT_RECOVER = -1,
204 DATAOUT_SEND_R2T = 1,
205 DATAOUT_SEND_TO_TRANSPORT = 2,
206 DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
209 /* Used for struct iscsi_node_auth->naf_flags */
210 enum naf_flags_table {
211 NAF_USERID_SET = 0x01,
212 NAF_PASSWORD_SET = 0x02,
213 NAF_USERID_IN_SET = 0x04,
214 NAF_PASSWORD_IN_SET = 0x08,
217 /* Used by various struct timer_list to manage iSCSI specific state */
218 enum iscsi_timer_flags_table {
219 ISCSI_TF_RUNNING = 0x01,
220 ISCSI_TF_STOP = 0x02,
221 ISCSI_TF_EXPIRED = 0x04,
224 /* Used for struct iscsi_np->np_flags */
225 enum np_flags_table {
226 NPF_IP_NETWORK = 0x00,
227 NPF_SCTP_STRUCT_FILE = 0x01 /* Bugfix */
230 /* Used for struct iscsi_np->np_thread_state */
231 enum np_thread_state_table {
232 ISCSI_NP_THREAD_ACTIVE = 1,
233 ISCSI_NP_THREAD_INACTIVE = 2,
234 ISCSI_NP_THREAD_RESET = 3,
235 ISCSI_NP_THREAD_SHUTDOWN = 4,
236 ISCSI_NP_THREAD_EXIT = 5,
239 struct iscsi_conn_ops {
240 u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
241 u8 DataDigest; /* [0,1] == [None,CRC32C] */
242 u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
243 u8 OFMarker; /* [0,1] == [No,Yes] */
244 u8 IFMarker; /* [0,1] == [No,Yes] */
245 u32 OFMarkInt; /* [1..65535] */
246 u32 IFMarkInt; /* [1..65535] */
249 struct iscsi_sess_ops {
250 char InitiatorName[224];
251 char InitiatorAlias[256];
252 char TargetName[224];
253 char TargetAlias[256];
254 char TargetAddress[256];
255 u16 TargetPortalGroupTag; /* [0..65535] */
256 u16 MaxConnections; /* [1..65535] */
257 u8 InitialR2T; /* [0,1] == [No,Yes] */
258 u8 ImmediateData; /* [0,1] == [No,Yes] */
259 u32 MaxBurstLength; /* [512..2**24-1] */
260 u32 FirstBurstLength; /* [512..2**24-1] */
261 u16 DefaultTime2Wait; /* [0..3600] */
262 u16 DefaultTime2Retain; /* [0..3600] */
263 u16 MaxOutstandingR2T; /* [1..65535] */
264 u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
265 u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
266 u8 ErrorRecoveryLevel; /* [0..2] */
267 u8 SessionType; /* [0,1] == [Normal,Discovery]*/
270 struct iscsi_queue_req {
272 struct iscsi_cmd *cmd;
273 struct list_head qr_list;
276 struct iscsi_data_count {
278 int sync_and_steering;
279 enum data_count_type type;
286 struct iscsi_param_list {
287 struct list_head param_list;
288 struct list_head extra_response_list;
291 struct iscsi_datain_req {
292 enum datain_req_comp_table dr_complete;
293 int generate_recovery_values;
294 enum datain_req_rec_table recovery;
303 struct list_head cmd_datain_node;
304 } ____cacheline_aligned;
306 struct iscsi_ooo_cmdsn {
311 struct iscsi_cmd *cmd;
312 struct list_head ooo_list;
313 } ____cacheline_aligned;
315 struct iscsi_datain {
320 } ____cacheline_aligned;
330 struct list_head r2t_list;
331 } ____cacheline_aligned;
334 enum iscsi_timer_flags_table dataout_timer_flags;
335 /* DataOUT timeout retries */
336 u8 dataout_timeout_retries;
337 /* Within command recovery count */
338 u8 error_recovery_count;
339 /* iSCSI dependent state for out or order CmdSNs */
340 enum cmd_i_state_table deferred_i_state;
341 /* iSCSI dependent state */
342 enum cmd_i_state_table i_state;
343 /* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
345 /* Immediate data present */
349 /* iSCSI Response Code */
351 /* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
353 /* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
355 /* MaxCmdSN has been incremented */
357 /* Immediate Unsolicited Dataout */
359 /* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
362 enum cmd_flags_table cmd_flags;
363 /* Initiator Task Tag assigned from Initiator */
365 /* Target Transfer Tag assigned from Target */
367 /* CmdSN assigned from Initiator */
369 /* ExpStatSN assigned from Initiator */
371 /* StatSN assigned to this ITT */
377 /* Last DataSN acknowledged via DataAck SNACK */
379 /* Used for echoing NOPOUT ping data */
381 /* Used to store DataDigest */
383 /* Counter for MaxOutstandingR2T */
384 u32 outstanding_r2ts;
385 /* Next R2T Offset when DataSequenceInOrder=Yes */
387 /* Iovec current and orig count for iscsi_cmd->iov_data */
389 u32 orig_iov_data_count;
390 /* Number of miscellaneous iovecs used for IP stack calls */
392 /* Number of struct iscsi_pdu in struct iscsi_cmd->pdu_list */
394 /* Next struct iscsi_pdu to send in struct iscsi_cmd->pdu_list */
396 /* Current struct iscsi_pdu in struct iscsi_cmd->pdu_list */
398 /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
400 /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
402 /* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
404 /* Lowest offset in current DataOUT sequence */
405 u32 seq_start_offset;
406 /* Highest offset in current DataOUT sequence */
408 /* Total size in bytes received so far of READ data */
410 /* Total size in bytes received so far of WRITE data */
412 /* Counter for FirstBurstLength key */
414 /* Counter for MaxBurstLength key */
416 /* Transfer size used for IP stack calls */
418 /* Buffer used for various purposes */
420 /* See include/linux/dma-mapping.h */
421 enum dma_data_direction data_direction;
422 /* iSCSI PDU Header + CRC */
423 unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
424 /* Number of times struct iscsi_cmd is present in immediate queue */
425 atomic_t immed_queue_count;
426 atomic_t response_queue_count;
427 spinlock_t datain_lock;
428 spinlock_t dataout_timeout_lock;
429 /* spinlock for protecting struct iscsi_cmd->i_state */
430 spinlock_t istate_lock;
431 /* spinlock for adding within command recovery entries */
432 spinlock_t error_lock;
433 /* spinlock for adding R2Ts */
436 struct list_head datain_list;
438 struct list_head cmd_r2t_list;
439 struct completion reject_comp;
440 /* Timer for DataOUT */
441 struct timer_list dataout_timer;
442 /* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
443 struct kvec *iov_data;
444 /* Iovecs for miscellaneous purposes */
445 #define ISCSI_MISC_IOVECS 5
446 struct kvec iov_misc[ISCSI_MISC_IOVECS];
447 /* Array of struct iscsi_pdu used for DataPDUInOrder=No */
448 struct iscsi_pdu *pdu_list;
449 /* Current struct iscsi_pdu used for DataPDUInOrder=No */
450 struct iscsi_pdu *pdu_ptr;
451 /* Array of struct iscsi_seq used for DataSequenceInOrder=No */
452 struct iscsi_seq *seq_list;
453 /* Current struct iscsi_seq used for DataSequenceInOrder=No */
454 struct iscsi_seq *seq_ptr;
455 /* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
456 struct iscsi_tmr_req *tmr_req;
457 /* Connection this command is alligient to */
458 struct iscsi_conn *conn;
459 /* Pointer to connection recovery entry */
460 struct iscsi_conn_recovery *cr;
461 /* Session the command is part of, used for connection recovery */
462 struct iscsi_session *sess;
463 /* list_head for connection list */
464 struct list_head i_conn_node;
465 /* The TCM I/O descriptor that is accessed via container_of() */
466 struct se_cmd se_cmd;
467 /* Sense buffer that will be mapped into outgoing status */
468 #define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
469 unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
471 struct scatterlist *t_mem_sg;
477 struct scatterlist *first_data_sg;
478 u32 first_data_sg_off;
481 } ____cacheline_aligned;
483 struct iscsi_tmr_req {
484 bool task_reassign:1;
487 struct iscsi_conn_recovery *conn_recovery;
488 struct se_tmr_req *se_tmr_req;
492 /* Authentication Successful for this connection */
494 /* State connection is currently in */
496 u8 conn_logout_reason;
497 u8 network_transport;
498 enum iscsi_timer_flags_table nopin_timer_flags;
499 enum iscsi_timer_flags_table nopin_response_timer_flags;
500 /* Used to know what thread encountered a transport failure */
502 /* connection id assigned by the Initiator */
504 /* Remote TCP Port */
509 #define CONNFLAG_SCTP_STRUCT_FILE 0x01
511 /* Used for iscsi_tx_login_rsp() */
514 /* Per connection status sequence number */
516 /* IFMarkInt's Current Value */
518 /* OFMarkInt's Current Value */
520 /* Used for calculating OFMarker offset to next PDU */
521 u32 of_marker_offset;
522 /* Complete Bad PDU for sending reject */
523 unsigned char bad_hdr[ISCSI_HDR_LEN];
524 #define IPV6_ADDRESS_SPACE 48
525 unsigned char login_ip[IPV6_ADDRESS_SPACE];
526 unsigned char local_ip[IPV6_ADDRESS_SPACE];
527 int conn_usage_count;
528 int conn_waiting_on_uc;
529 atomic_t check_immediate_queue;
530 atomic_t conn_logout_remove;
531 atomic_t connection_exit;
532 atomic_t connection_recovery;
533 atomic_t connection_reinstatement;
534 atomic_t connection_wait_rcfr;
535 atomic_t sleep_on_conn_wait_comp;
536 atomic_t transport_failed;
537 struct completion conn_post_wait_comp;
538 struct completion conn_wait_comp;
539 struct completion conn_wait_rcfr_comp;
540 struct completion conn_waiting_on_uc_comp;
541 struct completion conn_logout_comp;
542 struct completion tx_half_close_comp;
543 struct completion rx_half_close_comp;
544 /* socket used by this connection */
546 struct timer_list nopin_timer;
547 struct timer_list nopin_response_timer;
548 struct timer_list transport_timer;
549 /* Spinlock used for add/deleting cmd's from conn_cmd_list */
551 spinlock_t conn_usage_lock;
552 spinlock_t immed_queue_lock;
553 spinlock_t nopin_timer_lock;
554 spinlock_t response_queue_lock;
555 spinlock_t state_lock;
556 /* libcrypto RX and TX contexts for crc32c */
557 struct hash_desc conn_rx_hash;
558 struct hash_desc conn_tx_hash;
559 /* Used for scheduling TX and RX connection kthreads */
560 cpumask_var_t conn_cpumask;
561 unsigned int conn_rx_reset_cpumask:1;
562 unsigned int conn_tx_reset_cpumask:1;
563 /* list_head of struct iscsi_cmd for this connection */
564 struct list_head conn_cmd_list;
565 struct list_head immed_queue_list;
566 struct list_head response_queue_list;
567 struct iscsi_conn_ops *conn_ops;
568 struct iscsi_param_list *param_list;
569 /* Used for per connection auth state machine */
571 struct iscsi_login_thread_s *login_thread;
572 struct iscsi_portal_group *tpg;
573 /* Pointer to parent session */
574 struct iscsi_session *sess;
575 /* Pointer to thread_set in use for this conn's threads */
576 struct iscsi_thread_set *thread_set;
577 /* list_head for session connection list */
578 struct list_head conn_list;
579 } ____cacheline_aligned;
581 struct iscsi_conn_recovery {
584 u32 maxrecvdatasegmentlength;
585 int ready_for_reallegiance;
586 struct list_head conn_recovery_cmd_list;
587 spinlock_t conn_recovery_cmd_lock;
588 struct timer_list time2retain_timer;
589 struct iscsi_session *sess;
590 struct list_head cr_list;
591 } ____cacheline_aligned;
593 struct iscsi_session {
596 enum iscsi_timer_flags_table time2retain_timer_flags;
599 u16 conn_recovery_count;
601 /* state session is currently in */
603 /* session wide counter: initiator assigned task tag */
605 /* session wide counter: target assigned task tag */
609 /* protects cmdsn values */
610 struct mutex cmdsn_mutex;
611 /* session wide counter: expected command sequence number */
613 /* session wide counter: maximum allowed command sequence number */
615 struct list_head sess_ooo_cmdsn_list;
617 /* LIO specific session ID */
620 /* unique within the target */
622 /* Used for session reference counting */
623 int session_usage_count;
624 int session_waiting_on_uc;
629 u32 conn_digest_errors;
630 u32 conn_timeout_errors;
632 spinlock_t session_stats_lock;
633 /* Number of active connections */
635 atomic_t session_continuation;
636 atomic_t session_fall_back_to_erl0;
637 atomic_t session_logout;
638 atomic_t session_reinstatement;
639 atomic_t session_stop_active;
640 atomic_t sleep_on_sess_wait_comp;
641 /* connection list */
642 struct list_head sess_conn_list;
643 struct list_head cr_active_list;
644 struct list_head cr_inactive_list;
645 spinlock_t conn_lock;
646 spinlock_t cr_a_lock;
647 spinlock_t cr_i_lock;
648 spinlock_t session_usage_lock;
650 struct completion async_msg_comp;
651 struct completion reinstatement_comp;
652 struct completion session_wait_comp;
653 struct completion session_waiting_on_uc_comp;
654 struct timer_list time2retain_timer;
655 struct iscsi_sess_ops *sess_ops;
656 struct se_session *se_sess;
657 struct iscsi_portal_group *tpg;
658 } ____cacheline_aligned;
662 u8 checked_for_existing;
664 u8 leading_connection;
671 u32 initial_exp_statsn;
679 } ____cacheline_aligned;
681 struct iscsi_node_attrib {
683 u32 dataout_timeout_retries;
686 u32 nopin_response_timeout;
687 u32 random_datain_pdu_offsets;
688 u32 random_datain_seq_offsets;
689 u32 random_r2t_offsets;
692 struct iscsi_node_acl *nacl;
695 struct se_dev_entry_s;
697 struct iscsi_node_auth {
698 enum naf_flags_table naf_flags;
699 int authenticate_target;
700 /* Used for iscsit_global->discovery_auth,
701 * set to zero (auth disabled) by default */
702 int enforce_discovery_auth;
703 #define MAX_USER_LEN 256
704 #define MAX_PASS_LEN 256
705 char userid[MAX_USER_LEN];
706 char password[MAX_PASS_LEN];
707 char userid_mutual[MAX_USER_LEN];
708 char password_mutual[MAX_PASS_LEN];
711 #include "iscsi_target_stat.h"
713 struct iscsi_node_stat_grps {
714 struct config_group iscsi_sess_stats_group;
715 struct config_group iscsi_conn_stats_group;
718 struct iscsi_node_acl {
719 struct iscsi_node_attrib node_attrib;
720 struct iscsi_node_auth node_auth;
721 struct iscsi_node_stat_grps node_stat_grps;
722 struct se_node_acl se_node_acl;
725 #define NODE_STAT_GRPS(nacl) (&(nacl)->node_stat_grps)
727 #define ISCSI_NODE_ATTRIB(t) (&(t)->node_attrib)
728 #define ISCSI_NODE_AUTH(t) (&(t)->node_auth)
730 struct iscsi_tpg_attrib {
734 u32 generate_node_acls;
735 u32 cache_dynamic_acls;
736 u32 default_cmdsn_depth;
737 u32 demo_mode_write_protect;
738 u32 prod_mode_write_protect;
739 struct iscsi_portal_group *tpg;
743 int np_network_transport;
746 enum np_thread_state_table np_thread_state;
747 enum iscsi_timer_flags_table np_login_timer_flags;
749 enum np_flags_table np_flags;
750 unsigned char np_ip[IPV6_ADDRESS_SPACE];
752 spinlock_t np_thread_lock;
753 struct completion np_restart_comp;
754 struct socket *np_socket;
755 struct __kernel_sockaddr_storage np_sockaddr;
756 struct task_struct *np_thread;
757 struct timer_list np_login_timer;
758 struct iscsi_portal_group *np_login_tpg;
759 struct list_head np_list;
760 } ____cacheline_aligned;
762 struct iscsi_tpg_np {
763 struct iscsi_np *tpg_np;
764 struct iscsi_portal_group *tpg;
765 struct iscsi_tpg_np *tpg_np_parent;
766 struct list_head tpg_np_list;
767 struct list_head tpg_np_child_list;
768 struct list_head tpg_np_parent_list;
769 struct se_tpg_np se_tpg_np;
770 spinlock_t tpg_np_parent_lock;
773 struct iscsi_portal_group {
774 unsigned char tpg_chap_id;
776 enum tpg_state_table tpg_state;
777 /* Target Portal Group Tag */
779 /* Id assigned to target sessions */
781 /* Number of active sessions */
783 /* Number of Network Portals available for this TPG */
785 /* Per TPG LIO specific session ID. */
787 /* Spinlock for adding/removing Network Portals */
788 spinlock_t tpg_np_lock;
789 spinlock_t tpg_state_lock;
790 struct se_portal_group tpg_se_tpg;
791 struct mutex tpg_access_lock;
792 struct mutex np_login_lock;
793 struct iscsi_tpg_attrib tpg_attrib;
794 /* Pointer to default list of iSCSI parameters for TPG */
795 struct iscsi_param_list *param_list;
796 struct iscsi_tiqn *tpg_tiqn;
797 struct list_head tpg_gnp_list;
798 struct list_head tpg_list;
799 } ____cacheline_aligned;
801 #define ISCSI_TPG_C(c) ((struct iscsi_portal_group *)(c)->tpg)
802 #define ISCSI_TPG_LUN(c, l) ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l])
803 #define ISCSI_TPG_S(s) ((struct iscsi_portal_group *)(s)->tpg)
804 #define ISCSI_TPG_ATTRIB(t) (&(t)->tpg_attrib)
805 #define SE_TPG(tpg) (&(tpg)->tpg_se_tpg)
807 struct iscsi_wwn_stat_grps {
808 struct config_group iscsi_stat_group;
809 struct config_group iscsi_instance_group;
810 struct config_group iscsi_sess_err_group;
811 struct config_group iscsi_tgt_attr_group;
812 struct config_group iscsi_login_stats_group;
813 struct config_group iscsi_logout_stats_group;
817 #define ISCSI_IQN_LEN 224
818 unsigned char tiqn[ISCSI_IQN_LEN];
819 enum tiqn_state_table tiqn_state;
820 int tiqn_access_count;
821 u32 tiqn_active_tpgs;
823 u32 tiqn_num_tpg_nps;
825 struct list_head tiqn_list;
826 struct list_head tiqn_tpg_list;
827 spinlock_t tiqn_state_lock;
828 spinlock_t tiqn_tpg_lock;
829 struct se_wwn tiqn_wwn;
830 struct iscsi_wwn_stat_grps tiqn_stat_grps;
832 struct iscsi_sess_err_stats sess_err_stats;
833 struct iscsi_login_stats login_stats;
834 struct iscsi_logout_stats logout_stats;
835 } ____cacheline_aligned;
837 #define WWN_STAT_GRPS(tiqn) (&(tiqn)->tiqn_stat_grps)
839 struct iscsit_global {
840 /* In core shutdown */
843 /* Unique identifier used for the authentication daemon */
846 /* Thread Set bitmap count */
848 /* Thread Set bitmap pointer */
849 unsigned long *ts_bitmap;
850 /* Used for iSCSI discovery session authentication */
851 struct iscsi_node_acl discovery_acl;
852 struct iscsi_portal_group *discovery_tpg;
855 #endif /* ISCSI_TARGET_CORE_H */