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-rc1"
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
60 enum tpg_np_network_transport_table {
69 /* RFC-3720 7.1.4 Standard Connection State Diagram for a Target */
70 enum target_conn_state_table {
71 TARG_CONN_STATE_FREE = 0x1,
72 TARG_CONN_STATE_XPT_UP = 0x3,
73 TARG_CONN_STATE_IN_LOGIN = 0x4,
74 TARG_CONN_STATE_LOGGED_IN = 0x5,
75 TARG_CONN_STATE_IN_LOGOUT = 0x6,
76 TARG_CONN_STATE_LOGOUT_REQUESTED = 0x7,
77 TARG_CONN_STATE_CLEANUP_WAIT = 0x8,
80 /* RFC-3720 7.3.2 Session State Diagram for a Target */
81 enum target_sess_state_table {
82 TARG_SESS_STATE_FREE = 0x1,
83 TARG_SESS_STATE_ACTIVE = 0x2,
84 TARG_SESS_STATE_LOGGED_IN = 0x3,
85 TARG_SESS_STATE_FAILED = 0x4,
86 TARG_SESS_STATE_IN_CONTINUE = 0x5,
89 /* struct iscsi_data_count->type */
90 enum data_count_type {
95 /* struct iscsi_datain_req->dr_complete */
96 enum datain_req_comp_table {
97 DATAIN_COMPLETE_NORMAL = 1,
98 DATAIN_COMPLETE_WITHIN_COMMAND_RECOVERY = 2,
99 DATAIN_COMPLETE_CONNECTION_RECOVERY = 3,
102 /* struct iscsi_datain_req->recovery */
103 enum datain_req_rec_table {
104 DATAIN_WITHIN_COMMAND_RECOVERY = 1,
105 DATAIN_CONNECTION_RECOVERY = 2,
108 /* struct iscsi_portal_group->state */
109 enum tpg_state_table {
111 TPG_STATE_ACTIVE = 1,
112 TPG_STATE_INACTIVE = 2,
113 TPG_STATE_COLD_RESET = 3,
116 /* struct iscsi_tiqn->tiqn_state */
117 enum tiqn_state_table {
118 TIQN_STATE_ACTIVE = 1,
119 TIQN_STATE_SHUTDOWN = 2,
122 /* struct iscsi_cmd->cmd_flags */
123 enum cmd_flags_table {
124 ICF_GOT_LAST_DATAOUT = 0x00000001,
125 ICF_GOT_DATACK_SNACK = 0x00000002,
126 ICF_NON_IMMEDIATE_UNSOLICITED_DATA = 0x00000004,
127 ICF_SENT_LAST_R2T = 0x00000008,
128 ICF_WITHIN_COMMAND_RECOVERY = 0x00000010,
129 ICF_CONTIG_MEMORY = 0x00000020,
130 ICF_ATTACHED_TO_RQUEUE = 0x00000040,
131 ICF_OOO_CMDSN = 0x00000080,
132 ICF_REJECT_FAIL_CONN = 0x00000100,
135 /* struct iscsi_cmd->i_state */
136 enum cmd_i_state_table {
139 ISTATE_DEFERRED_CMD = 2,
140 ISTATE_UNSOLICITED_DATA = 3,
141 ISTATE_RECEIVE_DATAOUT = 4,
142 ISTATE_RECEIVE_DATAOUT_RECOVERY = 5,
143 ISTATE_RECEIVED_LAST_DATAOUT = 6,
144 ISTATE_WITHIN_DATAOUT_RECOVERY = 7,
145 ISTATE_IN_CONNECTION_RECOVERY = 8,
146 ISTATE_RECEIVED_TASKMGT = 9,
147 ISTATE_SEND_ASYNCMSG = 10,
148 ISTATE_SENT_ASYNCMSG = 11,
149 ISTATE_SEND_DATAIN = 12,
150 ISTATE_SEND_LAST_DATAIN = 13,
151 ISTATE_SENT_LAST_DATAIN = 14,
152 ISTATE_SEND_LOGOUTRSP = 15,
153 ISTATE_SENT_LOGOUTRSP = 16,
154 ISTATE_SEND_NOPIN = 17,
155 ISTATE_SENT_NOPIN = 18,
156 ISTATE_SEND_REJECT = 19,
157 ISTATE_SENT_REJECT = 20,
158 ISTATE_SEND_R2T = 21,
159 ISTATE_SENT_R2T = 22,
160 ISTATE_SEND_R2T_RECOVERY = 23,
161 ISTATE_SENT_R2T_RECOVERY = 24,
162 ISTATE_SEND_LAST_R2T = 25,
163 ISTATE_SENT_LAST_R2T = 26,
164 ISTATE_SEND_LAST_R2T_RECOVERY = 27,
165 ISTATE_SENT_LAST_R2T_RECOVERY = 28,
166 ISTATE_SEND_STATUS = 29,
167 ISTATE_SEND_STATUS_BROKEN_PC = 30,
168 ISTATE_SENT_STATUS = 31,
169 ISTATE_SEND_STATUS_RECOVERY = 32,
170 ISTATE_SENT_STATUS_RECOVERY = 33,
171 ISTATE_SEND_TASKMGTRSP = 34,
172 ISTATE_SENT_TASKMGTRSP = 35,
173 ISTATE_SEND_TEXTRSP = 36,
174 ISTATE_SENT_TEXTRSP = 37,
175 ISTATE_SEND_NOPIN_WANT_RESPONSE = 38,
176 ISTATE_SENT_NOPIN_WANT_RESPONSE = 39,
177 ISTATE_SEND_NOPIN_NO_RESPONSE = 40,
182 /* Used for iscsi_recover_cmdsn() return values */
183 enum recover_cmdsn_ret_table {
184 CMDSN_ERROR_CANNOT_RECOVER = -1,
185 CMDSN_NORMAL_OPERATION = 0,
186 CMDSN_LOWER_THAN_EXP = 1,
187 CMDSN_HIGHER_THAN_EXP = 2,
190 /* Used for iscsi_handle_immediate_data() return values */
191 enum immedate_data_ret_table {
192 IMMEDIATE_DATA_CANNOT_RECOVER = -1,
193 IMMEDIATE_DATA_NORMAL_OPERATION = 0,
194 IMMEDIATE_DATA_ERL1_CRC_FAILURE = 1,
197 /* Used for iscsi_decide_dataout_action() return values */
198 enum dataout_action_ret_table {
199 DATAOUT_CANNOT_RECOVER = -1,
201 DATAOUT_SEND_R2T = 1,
202 DATAOUT_SEND_TO_TRANSPORT = 2,
203 DATAOUT_WITHIN_COMMAND_RECOVERY = 3,
206 /* Used for struct iscsi_node_auth->naf_flags */
207 enum naf_flags_table {
208 NAF_USERID_SET = 0x01,
209 NAF_PASSWORD_SET = 0x02,
210 NAF_USERID_IN_SET = 0x04,
211 NAF_PASSWORD_IN_SET = 0x08,
214 /* Used by various struct timer_list to manage iSCSI specific state */
215 enum iscsi_timer_flags_table {
216 ISCSI_TF_RUNNING = 0x01,
217 ISCSI_TF_STOP = 0x02,
218 ISCSI_TF_EXPIRED = 0x04,
221 /* Used for struct iscsi_np->np_flags */
222 enum np_flags_table {
223 NPF_IP_NETWORK = 0x00,
224 NPF_SCTP_STRUCT_FILE = 0x01 /* Bugfix */
227 /* Used for struct iscsi_np->np_thread_state */
228 enum np_thread_state_table {
229 ISCSI_NP_THREAD_ACTIVE = 1,
230 ISCSI_NP_THREAD_INACTIVE = 2,
231 ISCSI_NP_THREAD_RESET = 3,
232 ISCSI_NP_THREAD_SHUTDOWN = 4,
233 ISCSI_NP_THREAD_EXIT = 5,
236 struct iscsi_conn_ops {
237 u8 HeaderDigest; /* [0,1] == [None,CRC32C] */
238 u8 DataDigest; /* [0,1] == [None,CRC32C] */
239 u32 MaxRecvDataSegmentLength; /* [512..2**24-1] */
240 u8 OFMarker; /* [0,1] == [No,Yes] */
241 u8 IFMarker; /* [0,1] == [No,Yes] */
242 u32 OFMarkInt; /* [1..65535] */
243 u32 IFMarkInt; /* [1..65535] */
246 struct iscsi_sess_ops {
247 char InitiatorName[224];
248 char InitiatorAlias[256];
249 char TargetName[224];
250 char TargetAlias[256];
251 char TargetAddress[256];
252 u16 TargetPortalGroupTag; /* [0..65535] */
253 u16 MaxConnections; /* [1..65535] */
254 u8 InitialR2T; /* [0,1] == [No,Yes] */
255 u8 ImmediateData; /* [0,1] == [No,Yes] */
256 u32 MaxBurstLength; /* [512..2**24-1] */
257 u32 FirstBurstLength; /* [512..2**24-1] */
258 u16 DefaultTime2Wait; /* [0..3600] */
259 u16 DefaultTime2Retain; /* [0..3600] */
260 u16 MaxOutstandingR2T; /* [1..65535] */
261 u8 DataPDUInOrder; /* [0,1] == [No,Yes] */
262 u8 DataSequenceInOrder; /* [0,1] == [No,Yes] */
263 u8 ErrorRecoveryLevel; /* [0..2] */
264 u8 SessionType; /* [0,1] == [Normal,Discovery]*/
267 struct iscsi_queue_req {
269 struct iscsi_cmd *cmd;
270 struct list_head qr_list;
273 struct iscsi_data_count {
275 int sync_and_steering;
276 enum data_count_type type;
283 struct iscsi_param_list {
284 struct list_head param_list;
285 struct list_head extra_response_list;
288 struct iscsi_datain_req {
289 enum datain_req_comp_table dr_complete;
290 int generate_recovery_values;
291 enum datain_req_rec_table recovery;
301 struct list_head dr_list;
302 } ____cacheline_aligned;
304 struct iscsi_ooo_cmdsn {
309 struct iscsi_cmd *cmd;
310 struct list_head ooo_list;
311 } ____cacheline_aligned;
313 struct iscsi_datain {
318 } ____cacheline_aligned;
328 struct list_head r2t_list;
329 } ____cacheline_aligned;
332 enum iscsi_timer_flags_table dataout_timer_flags;
333 /* DataOUT timeout retries */
334 u8 dataout_timeout_retries;
335 /* Within command recovery count */
336 u8 error_recovery_count;
337 /* iSCSI dependent state for out or order CmdSNs */
338 enum cmd_i_state_table deferred_i_state;
339 /* iSCSI dependent state */
340 enum cmd_i_state_table i_state;
341 /* Command is an immediate command (ISCSI_OP_IMMEDIATE set) */
343 /* Immediate data present */
347 /* iSCSI Response Code */
349 /* Logout reason when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
351 /* Logout response code when iscsi_opcode == ISCSI_INIT_LOGOUT_CMND */
353 /* MaxCmdSN has been incremented */
355 /* Immediate Unsolicited Dataout */
357 /* CID contained in logout PDU when opcode == ISCSI_INIT_LOGOUT_CMND */
360 enum cmd_flags_table cmd_flags;
361 /* Initiator Task Tag assigned from Initiator */
363 /* Target Transfer Tag assigned from Target */
365 /* CmdSN assigned from Initiator */
367 /* ExpStatSN assigned from Initiator */
369 /* StatSN assigned to this ITT */
375 /* Last DataSN acknowledged via DataAck SNACK */
377 /* Used for echoing NOPOUT ping data */
379 /* Used to store DataDigest */
381 /* Total size in bytes associated with command */
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 */
399 /* Next struct iscsi_seq to send in struct iscsi_cmd->seq_list */
401 /* Number of struct iscsi_seq in struct iscsi_cmd->seq_list */
403 /* Current struct iscsi_seq in struct iscsi_cmd->seq_list */
405 /* Lowest offset in current DataOUT sequence */
406 u32 seq_start_offset;
407 /* Highest offset in current DataOUT sequence */
409 /* Total size in bytes received so far of READ data */
411 /* Total size in bytes received so far of WRITE data */
413 /* Counter for FirstBurstLength key */
415 /* Counter for MaxBurstLength key */
417 /* Transfer size used for IP stack calls */
419 /* Buffer used for various purposes */
421 /* See include/linux/dma-mapping.h */
422 enum dma_data_direction data_direction;
423 /* iSCSI PDU Header + CRC */
424 unsigned char pdu[ISCSI_HDR_LEN + ISCSI_CRC_LEN];
425 /* Number of times struct iscsi_cmd is present in immediate queue */
426 atomic_t immed_queue_count;
427 atomic_t response_queue_count;
428 atomic_t transport_sent;
429 spinlock_t datain_lock;
430 spinlock_t dataout_timeout_lock;
431 /* spinlock for protecting struct iscsi_cmd->i_state */
432 spinlock_t istate_lock;
433 /* spinlock for adding within command recovery entries */
434 spinlock_t error_lock;
435 /* spinlock for adding R2Ts */
438 struct list_head datain_list;
440 struct list_head cmd_r2t_list;
441 struct completion reject_comp;
442 /* Timer for DataOUT */
443 struct timer_list dataout_timer;
444 /* Iovecs for SCSI data payload RX/TX w/ kernel level sockets */
445 struct kvec *iov_data;
446 /* Iovecs for miscellaneous purposes */
447 #define ISCSI_MISC_IOVECS 5
448 struct kvec iov_misc[ISCSI_MISC_IOVECS];
449 /* Array of struct iscsi_pdu used for DataPDUInOrder=No */
450 struct iscsi_pdu *pdu_list;
451 /* Current struct iscsi_pdu used for DataPDUInOrder=No */
452 struct iscsi_pdu *pdu_ptr;
453 /* Array of struct iscsi_seq used for DataSequenceInOrder=No */
454 struct iscsi_seq *seq_list;
455 /* Current struct iscsi_seq used for DataSequenceInOrder=No */
456 struct iscsi_seq *seq_ptr;
457 /* TMR Request when iscsi_opcode == ISCSI_OP_SCSI_TMFUNC */
458 struct iscsi_tmr_req *tmr_req;
459 /* Connection this command is alligient to */
460 struct iscsi_conn *conn;
461 /* Pointer to connection recovery entry */
462 struct iscsi_conn_recovery *cr;
463 /* Session the command is part of, used for connection recovery */
464 struct iscsi_session *sess;
465 /* list_head for connection list */
466 struct list_head i_list;
467 /* The TCM I/O descriptor that is accessed via container_of() */
468 struct se_cmd se_cmd;
469 /* Sense buffer that will be mapped into outgoing status */
470 #define ISCSI_SENSE_BUFFER_LEN (TRANSPORT_SENSE_BUFFER + 2)
471 unsigned char sense_buffer[ISCSI_SENSE_BUFFER_LEN];
473 struct scatterlist *t_mem_sg;
479 struct scatterlist *first_data_sg;
480 u32 first_data_sg_off;
483 } ____cacheline_aligned;
485 struct iscsi_tmr_req {
486 bool task_reassign:1;
489 struct iscsi_conn_recovery *conn_recovery;
490 struct se_tmr_req *se_tmr_req;
494 /* Authentication Successful for this connection */
496 /* State connection is currently in */
498 u8 conn_logout_reason;
499 u8 network_transport;
500 enum iscsi_timer_flags_table nopin_timer_flags;
501 enum iscsi_timer_flags_table nopin_response_timer_flags;
502 u8 tx_immediate_queue;
503 u8 tx_response_queue;
504 /* Used to know what thread encountered a transport failure */
506 /* connection id assigned by the Initiator */
508 /* Remote TCP Port */
512 #define CONNFLAG_SCTP_STRUCT_FILE 0x01
514 /* Used for iscsi_tx_login_rsp() */
517 /* Per connection status sequence number */
519 /* IFMarkInt's Current Value */
521 /* OFMarkInt's Current Value */
523 /* Used for calculating OFMarker offset to next PDU */
524 u32 of_marker_offset;
525 /* Complete Bad PDU for sending reject */
526 unsigned char bad_hdr[ISCSI_HDR_LEN];
527 #define IPV6_ADDRESS_SPACE 48
528 unsigned char login_ip[IPV6_ADDRESS_SPACE];
529 int conn_usage_count;
530 int conn_waiting_on_uc;
531 atomic_t check_immediate_queue;
532 atomic_t conn_logout_remove;
533 atomic_t connection_exit;
534 atomic_t connection_recovery;
535 atomic_t connection_reinstatement;
536 atomic_t connection_wait;
537 atomic_t connection_wait_rcfr;
538 atomic_t sleep_on_conn_wait_comp;
539 atomic_t transport_failed;
540 struct completion conn_post_wait_comp;
541 struct completion conn_wait_comp;
542 struct completion conn_wait_rcfr_comp;
543 struct completion conn_waiting_on_uc_comp;
544 struct completion conn_logout_comp;
545 struct completion tx_half_close_comp;
546 struct completion rx_half_close_comp;
547 /* socket used by this connection */
549 struct timer_list nopin_timer;
550 struct timer_list nopin_response_timer;
551 struct timer_list transport_timer;
552 /* Spinlock used for add/deleting cmd's from conn_cmd_list */
554 spinlock_t conn_usage_lock;
555 spinlock_t immed_queue_lock;
556 spinlock_t nopin_timer_lock;
557 spinlock_t response_queue_lock;
558 spinlock_t state_lock;
559 /* libcrypto RX and TX contexts for crc32c */
560 struct hash_desc conn_rx_hash;
561 struct hash_desc conn_tx_hash;
562 /* Used for scheduling TX and RX connection kthreads */
563 cpumask_var_t conn_cpumask;
564 int conn_rx_reset_cpumask:1;
565 int conn_tx_reset_cpumask:1;
566 /* list_head of struct iscsi_cmd for this connection */
567 struct list_head conn_cmd_list;
568 struct list_head immed_queue_list;
569 struct list_head response_queue_list;
570 struct iscsi_conn_ops *conn_ops;
571 struct iscsi_param_list *param_list;
572 /* Used for per connection auth state machine */
574 struct iscsi_login_thread_s *login_thread;
575 struct iscsi_portal_group *tpg;
576 /* Pointer to parent session */
577 struct iscsi_session *sess;
578 /* Pointer to thread_set in use for this conn's threads */
579 struct iscsi_thread_set *thread_set;
580 /* list_head for session connection list */
581 struct list_head conn_list;
582 } ____cacheline_aligned;
584 struct iscsi_conn_recovery {
587 u32 maxrecvdatasegmentlength;
588 int ready_for_reallegiance;
589 struct list_head conn_recovery_cmd_list;
590 spinlock_t conn_recovery_cmd_lock;
591 struct timer_list time2retain_timer;
592 struct iscsi_session *sess;
593 struct list_head cr_list;
594 } ____cacheline_aligned;
596 struct iscsi_session {
599 enum iscsi_timer_flags_table time2retain_timer_flags;
602 u16 conn_recovery_count;
604 /* state session is currently in */
606 /* session wide counter: initiator assigned task tag */
608 /* session wide counter: target assigned task tag */
612 /* protects cmdsn values */
613 struct mutex cmdsn_mutex;
614 /* session wide counter: expected command sequence number */
616 /* session wide counter: maximum allowed command sequence number */
618 struct list_head sess_ooo_cmdsn_list;
620 /* LIO specific session ID */
623 /* unique within the target */
625 /* Used for session reference counting */
626 int session_usage_count;
627 int session_waiting_on_uc;
632 u32 conn_digest_errors;
633 u32 conn_timeout_errors;
635 spinlock_t session_stats_lock;
636 /* Number of active connections */
638 atomic_t session_continuation;
639 atomic_t session_fall_back_to_erl0;
640 atomic_t session_logout;
641 atomic_t session_reinstatement;
642 atomic_t session_stop_active;
643 atomic_t sleep_on_sess_wait_comp;
644 atomic_t transport_wait_cmds;
645 /* connection list */
646 struct list_head sess_conn_list;
647 struct list_head cr_active_list;
648 struct list_head cr_inactive_list;
649 spinlock_t conn_lock;
650 spinlock_t cr_a_lock;
651 spinlock_t cr_i_lock;
652 spinlock_t session_usage_lock;
654 struct completion async_msg_comp;
655 struct completion reinstatement_comp;
656 struct completion session_wait_comp;
657 struct completion session_waiting_on_uc_comp;
658 struct timer_list time2retain_timer;
659 struct iscsi_sess_ops *sess_ops;
660 struct se_session *se_sess;
661 struct iscsi_portal_group *tpg;
662 } ____cacheline_aligned;
666 u8 checked_for_existing;
668 u8 leading_connection;
675 u32 initial_exp_statsn;
683 } ____cacheline_aligned;
685 struct iscsi_node_attrib {
687 u32 dataout_timeout_retries;
690 u32 nopin_response_timeout;
691 u32 random_datain_pdu_offsets;
692 u32 random_datain_seq_offsets;
693 u32 random_r2t_offsets;
696 struct iscsi_node_acl *nacl;
699 struct se_dev_entry_s;
701 struct iscsi_node_auth {
702 enum naf_flags_table naf_flags;
703 int authenticate_target;
704 /* Used for iscsit_global->discovery_auth,
705 * set to zero (auth disabled) by default */
706 int enforce_discovery_auth;
707 #define MAX_USER_LEN 256
708 #define MAX_PASS_LEN 256
709 char userid[MAX_USER_LEN];
710 char password[MAX_PASS_LEN];
711 char userid_mutual[MAX_USER_LEN];
712 char password_mutual[MAX_PASS_LEN];
715 #include "iscsi_target_stat.h"
717 struct iscsi_node_stat_grps {
718 struct config_group iscsi_sess_stats_group;
719 struct config_group iscsi_conn_stats_group;
722 struct iscsi_node_acl {
723 struct iscsi_node_attrib node_attrib;
724 struct iscsi_node_auth node_auth;
725 struct iscsi_node_stat_grps node_stat_grps;
726 struct se_node_acl se_node_acl;
729 #define NODE_STAT_GRPS(nacl) (&(nacl)->node_stat_grps)
731 #define ISCSI_NODE_ATTRIB(t) (&(t)->node_attrib)
732 #define ISCSI_NODE_AUTH(t) (&(t)->node_auth)
734 struct iscsi_tpg_attrib {
738 u32 generate_node_acls;
739 u32 cache_dynamic_acls;
740 u32 default_cmdsn_depth;
741 u32 demo_mode_write_protect;
742 u32 prod_mode_write_protect;
743 struct iscsi_portal_group *tpg;
747 int np_network_transport;
750 enum np_thread_state_table np_thread_state;
751 enum iscsi_timer_flags_table np_login_timer_flags;
753 enum np_flags_table np_flags;
754 unsigned char np_ip[IPV6_ADDRESS_SPACE];
756 spinlock_t np_thread_lock;
757 struct completion np_restart_comp;
758 struct socket *np_socket;
759 struct __kernel_sockaddr_storage np_sockaddr;
760 struct task_struct *np_thread;
761 struct timer_list np_login_timer;
762 struct iscsi_portal_group *np_login_tpg;
763 struct list_head np_list;
764 } ____cacheline_aligned;
766 struct iscsi_tpg_np {
767 struct iscsi_np *tpg_np;
768 struct iscsi_portal_group *tpg;
769 struct iscsi_tpg_np *tpg_np_parent;
770 struct list_head tpg_np_list;
771 struct list_head tpg_np_child_list;
772 struct list_head tpg_np_parent_list;
773 struct se_tpg_np se_tpg_np;
774 spinlock_t tpg_np_parent_lock;
777 struct iscsi_portal_group {
778 unsigned char tpg_chap_id;
780 enum tpg_state_table tpg_state;
781 /* Target Portal Group Tag */
783 /* Id assigned to target sessions */
785 /* Number of active sessions */
787 /* Number of Network Portals available for this TPG */
789 /* Per TPG LIO specific session ID. */
791 /* Spinlock for adding/removing Network Portals */
792 spinlock_t tpg_np_lock;
793 spinlock_t tpg_state_lock;
794 struct se_portal_group tpg_se_tpg;
795 struct mutex tpg_access_lock;
796 struct mutex np_login_lock;
797 struct iscsi_tpg_attrib tpg_attrib;
798 /* Pointer to default list of iSCSI parameters for TPG */
799 struct iscsi_param_list *param_list;
800 struct iscsi_tiqn *tpg_tiqn;
801 struct list_head tpg_gnp_list;
802 struct list_head tpg_list;
803 } ____cacheline_aligned;
805 #define ISCSI_TPG_C(c) ((struct iscsi_portal_group *)(c)->tpg)
806 #define ISCSI_TPG_LUN(c, l) ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l])
807 #define ISCSI_TPG_S(s) ((struct iscsi_portal_group *)(s)->tpg)
808 #define ISCSI_TPG_ATTRIB(t) (&(t)->tpg_attrib)
809 #define SE_TPG(tpg) (&(tpg)->tpg_se_tpg)
811 struct iscsi_wwn_stat_grps {
812 struct config_group iscsi_stat_group;
813 struct config_group iscsi_instance_group;
814 struct config_group iscsi_sess_err_group;
815 struct config_group iscsi_tgt_attr_group;
816 struct config_group iscsi_login_stats_group;
817 struct config_group iscsi_logout_stats_group;
821 #define ISCSI_IQN_LEN 224
822 unsigned char tiqn[ISCSI_IQN_LEN];
823 enum tiqn_state_table tiqn_state;
824 int tiqn_access_count;
825 u32 tiqn_active_tpgs;
827 u32 tiqn_num_tpg_nps;
829 struct list_head tiqn_list;
830 struct list_head tiqn_tpg_list;
831 spinlock_t tiqn_state_lock;
832 spinlock_t tiqn_tpg_lock;
833 struct se_wwn tiqn_wwn;
834 struct iscsi_wwn_stat_grps tiqn_stat_grps;
836 struct iscsi_sess_err_stats sess_err_stats;
837 struct iscsi_login_stats login_stats;
838 struct iscsi_logout_stats logout_stats;
839 } ____cacheline_aligned;
841 #define WWN_STAT_GRPS(tiqn) (&(tiqn)->tiqn_stat_grps)
843 struct iscsit_global {
844 /* In core shutdown */
847 /* Unique identifier used for the authentication daemon */
850 /* Thread Set bitmap count */
852 /* Thread Set bitmap pointer */
853 unsigned long *ts_bitmap;
854 /* Used for iSCSI discovery session authentication */
855 struct iscsi_node_acl discovery_acl;
856 struct iscsi_portal_group *discovery_tpg;
859 #endif /* ISCSI_TARGET_CORE_H */