Root/include/scsi/iscsi_proto.h

1/*
2 * RFC 3720 (iSCSI) protocol data types
3 *
4 * Copyright (C) 2005 Dmitry Yusupov
5 * Copyright (C) 2005 Alex Aizman
6 * maintained by open-iscsi@googlegroups.com
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published
10 * by the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * General Public License for more details.
17 *
18 * See the file COPYING included with this distribution for more details.
19 */
20
21#ifndef ISCSI_PROTO_H
22#define ISCSI_PROTO_H
23
24#include <linux/types.h>
25#include <scsi/scsi.h>
26
27#define ISCSI_DRAFT20_VERSION 0x00
28
29/* default iSCSI listen port for incoming connections */
30#define ISCSI_LISTEN_PORT 3260
31
32/* Padding word length */
33#define ISCSI_PAD_LEN 4
34
35/*
36 * useful common(control and data pathes) macro
37 */
38#define ntoh24(p) (((p)[0] << 16) | ((p)[1] << 8) | ((p)[2]))
39#define hton24(p, v) { \
40        p[0] = (((v) >> 16) & 0xFF); \
41        p[1] = (((v) >> 8) & 0xFF); \
42        p[2] = ((v) & 0xFF); \
43}
44#define zero_data(p) {p[0]=0;p[1]=0;p[2]=0;}
45
46/* initiator tags; opaque for target */
47typedef uint32_t __bitwise__ itt_t;
48/* below makes sense only for initiator that created this tag */
49#define build_itt(itt, age) ((__force itt_t)\
50    ((itt) | ((age) << ISCSI_AGE_SHIFT)))
51#define get_itt(itt) ((__force uint32_t)(itt_t)(itt) & ISCSI_ITT_MASK)
52#define RESERVED_ITT ((__force itt_t)0xffffffff)
53
54/*
55 * iSCSI Template Message Header
56 */
57struct iscsi_hdr {
58    uint8_t opcode;
59    uint8_t flags; /* Final bit */
60    uint8_t rsvd2[2];
61    uint8_t hlength; /* AHSs total length */
62    uint8_t dlength[3]; /* Data length */
63    uint8_t lun[8];
64    itt_t itt; /* Initiator Task Tag, opaque for target */
65    __be32 ttt; /* Target Task Tag */
66    __be32 statsn;
67    __be32 exp_statsn;
68    __be32 max_statsn;
69    uint8_t other[12];
70};
71
72/************************* RFC 3720 Begin *****************************/
73
74#define ISCSI_RESERVED_TAG 0xffffffff
75
76/* Opcode encoding bits */
77#define ISCSI_OP_RETRY 0x80
78#define ISCSI_OP_IMMEDIATE 0x40
79#define ISCSI_OPCODE_MASK 0x3F
80
81/* Initiator Opcode values */
82#define ISCSI_OP_NOOP_OUT 0x00
83#define ISCSI_OP_SCSI_CMD 0x01
84#define ISCSI_OP_SCSI_TMFUNC 0x02
85#define ISCSI_OP_LOGIN 0x03
86#define ISCSI_OP_TEXT 0x04
87#define ISCSI_OP_SCSI_DATA_OUT 0x05
88#define ISCSI_OP_LOGOUT 0x06
89#define ISCSI_OP_SNACK 0x10
90
91#define ISCSI_OP_VENDOR1_CMD 0x1c
92#define ISCSI_OP_VENDOR2_CMD 0x1d
93#define ISCSI_OP_VENDOR3_CMD 0x1e
94#define ISCSI_OP_VENDOR4_CMD 0x1f
95
96/* Target Opcode values */
97#define ISCSI_OP_NOOP_IN 0x20
98#define ISCSI_OP_SCSI_CMD_RSP 0x21
99#define ISCSI_OP_SCSI_TMFUNC_RSP 0x22
100#define ISCSI_OP_LOGIN_RSP 0x23
101#define ISCSI_OP_TEXT_RSP 0x24
102#define ISCSI_OP_SCSI_DATA_IN 0x25
103#define ISCSI_OP_LOGOUT_RSP 0x26
104#define ISCSI_OP_R2T 0x31
105#define ISCSI_OP_ASYNC_EVENT 0x32
106#define ISCSI_OP_REJECT 0x3f
107
108struct iscsi_ahs_hdr {
109    __be16 ahslength;
110    uint8_t ahstype;
111    uint8_t ahspec[5];
112};
113
114#define ISCSI_AHSTYPE_CDB 1
115#define ISCSI_AHSTYPE_RLENGTH 2
116#define ISCSI_CDB_SIZE 16
117
118/* iSCSI PDU Header */
119struct iscsi_cmd {
120    uint8_t opcode;
121    uint8_t flags;
122    __be16 rsvd2;
123    uint8_t hlength;
124    uint8_t dlength[3];
125    uint8_t lun[8];
126    itt_t itt; /* Initiator Task Tag */
127    __be32 data_length;
128    __be32 cmdsn;
129    __be32 exp_statsn;
130    uint8_t cdb[ISCSI_CDB_SIZE]; /* SCSI Command Block */
131    /* Additional Data (Command Dependent) */
132};
133
134/* Command PDU flags */
135#define ISCSI_FLAG_CMD_FINAL 0x80
136#define ISCSI_FLAG_CMD_READ 0x40
137#define ISCSI_FLAG_CMD_WRITE 0x20
138#define ISCSI_FLAG_CMD_ATTR_MASK 0x07 /* 3 bits */
139
140/* SCSI Command Attribute values */
141#define ISCSI_ATTR_UNTAGGED 0
142#define ISCSI_ATTR_SIMPLE 1
143#define ISCSI_ATTR_ORDERED 2
144#define ISCSI_ATTR_HEAD_OF_QUEUE 3
145#define ISCSI_ATTR_ACA 4
146
147struct iscsi_rlength_ahdr {
148    __be16 ahslength;
149    uint8_t ahstype;
150    uint8_t reserved;
151    __be32 read_length;
152};
153
154/* Extended CDB AHS */
155struct iscsi_ecdb_ahdr {
156    __be16 ahslength; /* CDB length - 15, including reserved byte */
157    uint8_t ahstype;
158    uint8_t reserved;
159    /* 4-byte aligned extended CDB spillover */
160    uint8_t ecdb[SCSI_MAX_VARLEN_CDB_SIZE - ISCSI_CDB_SIZE];
161};
162
163/* SCSI Response Header */
164struct iscsi_cmd_rsp {
165    uint8_t opcode;
166    uint8_t flags;
167    uint8_t response;
168    uint8_t cmd_status;
169    uint8_t hlength;
170    uint8_t dlength[3];
171    uint8_t rsvd[8];
172    itt_t itt; /* Initiator Task Tag */
173    __be32 rsvd1;
174    __be32 statsn;
175    __be32 exp_cmdsn;
176    __be32 max_cmdsn;
177    __be32 exp_datasn;
178    __be32 bi_residual_count;
179    __be32 residual_count;
180    /* Response or Sense Data (optional) */
181};
182
183/* Command Response PDU flags */
184#define ISCSI_FLAG_CMD_BIDI_OVERFLOW 0x10
185#define ISCSI_FLAG_CMD_BIDI_UNDERFLOW 0x08
186#define ISCSI_FLAG_CMD_OVERFLOW 0x04
187#define ISCSI_FLAG_CMD_UNDERFLOW 0x02
188
189/* iSCSI Status values. Valid if Rsp Selector bit is not set */
190#define ISCSI_STATUS_CMD_COMPLETED 0
191#define ISCSI_STATUS_TARGET_FAILURE 1
192#define ISCSI_STATUS_SUBSYS_FAILURE 2
193
194/* Asynchronous Event Header */
195struct iscsi_async {
196    uint8_t opcode;
197    uint8_t flags;
198    uint8_t rsvd2[2];
199    uint8_t rsvd3;
200    uint8_t dlength[3];
201    uint8_t lun[8];
202    uint8_t rsvd4[8];
203    __be32 statsn;
204    __be32 exp_cmdsn;
205    __be32 max_cmdsn;
206    uint8_t async_event;
207    uint8_t async_vcode;
208    __be16 param1;
209    __be16 param2;
210    __be16 param3;
211    uint8_t rsvd5[4];
212};
213
214/* iSCSI Event Codes */
215#define ISCSI_ASYNC_MSG_SCSI_EVENT 0
216#define ISCSI_ASYNC_MSG_REQUEST_LOGOUT 1
217#define ISCSI_ASYNC_MSG_DROPPING_CONNECTION 2
218#define ISCSI_ASYNC_MSG_DROPPING_ALL_CONNECTIONS 3
219#define ISCSI_ASYNC_MSG_PARAM_NEGOTIATION 4
220#define ISCSI_ASYNC_MSG_VENDOR_SPECIFIC 255
221
222/* NOP-Out Message */
223struct iscsi_nopout {
224    uint8_t opcode;
225    uint8_t flags;
226    __be16 rsvd2;
227    uint8_t rsvd3;
228    uint8_t dlength[3];
229    uint8_t lun[8];
230    itt_t itt; /* Initiator Task Tag */
231    __be32 ttt; /* Target Transfer Tag */
232    __be32 cmdsn;
233    __be32 exp_statsn;
234    uint8_t rsvd4[16];
235};
236
237/* NOP-In Message */
238struct iscsi_nopin {
239    uint8_t opcode;
240    uint8_t flags;
241    __be16 rsvd2;
242    uint8_t rsvd3;
243    uint8_t dlength[3];
244    uint8_t lun[8];
245    itt_t itt; /* Initiator Task Tag */
246    __be32 ttt; /* Target Transfer Tag */
247    __be32 statsn;
248    __be32 exp_cmdsn;
249    __be32 max_cmdsn;
250    uint8_t rsvd4[12];
251};
252
253/* SCSI Task Management Message Header */
254struct iscsi_tm {
255    uint8_t opcode;
256    uint8_t flags;
257    uint8_t rsvd1[2];
258    uint8_t hlength;
259    uint8_t dlength[3];
260    uint8_t lun[8];
261    itt_t itt; /* Initiator Task Tag */
262    itt_t rtt; /* Reference Task Tag */
263    __be32 cmdsn;
264    __be32 exp_statsn;
265    __be32 refcmdsn;
266    __be32 exp_datasn;
267    uint8_t rsvd2[8];
268};
269
270#define ISCSI_FLAG_TM_FUNC_MASK 0x7F
271
272/* Function values */
273#define ISCSI_TM_FUNC_ABORT_TASK 1
274#define ISCSI_TM_FUNC_ABORT_TASK_SET 2
275#define ISCSI_TM_FUNC_CLEAR_ACA 3
276#define ISCSI_TM_FUNC_CLEAR_TASK_SET 4
277#define ISCSI_TM_FUNC_LOGICAL_UNIT_RESET 5
278#define ISCSI_TM_FUNC_TARGET_WARM_RESET 6
279#define ISCSI_TM_FUNC_TARGET_COLD_RESET 7
280#define ISCSI_TM_FUNC_TASK_REASSIGN 8
281
282#define ISCSI_TM_FUNC_VALUE(hdr) ((hdr)->flags & ISCSI_FLAG_TM_FUNC_MASK)
283
284/* SCSI Task Management Response Header */
285struct iscsi_tm_rsp {
286    uint8_t opcode;
287    uint8_t flags;
288    uint8_t response; /* see Response values below */
289    uint8_t qualifier;
290    uint8_t hlength;
291    uint8_t dlength[3];
292    uint8_t rsvd2[8];
293    itt_t itt; /* Initiator Task Tag */
294    itt_t rtt; /* Reference Task Tag */
295    __be32 statsn;
296    __be32 exp_cmdsn;
297    __be32 max_cmdsn;
298    uint8_t rsvd3[12];
299};
300
301/* Response values */
302#define ISCSI_TMF_RSP_COMPLETE 0x00
303#define ISCSI_TMF_RSP_NO_TASK 0x01
304#define ISCSI_TMF_RSP_NO_LUN 0x02
305#define ISCSI_TMF_RSP_TASK_ALLEGIANT 0x03
306#define ISCSI_TMF_RSP_NO_FAILOVER 0x04
307#define ISCSI_TMF_RSP_NOT_SUPPORTED 0x05
308#define ISCSI_TMF_RSP_AUTH_FAILED 0x06
309#define ISCSI_TMF_RSP_REJECTED 0xff
310
311/* Ready To Transfer Header */
312struct iscsi_r2t_rsp {
313    uint8_t opcode;
314    uint8_t flags;
315    uint8_t rsvd2[2];
316    uint8_t hlength;
317    uint8_t dlength[3];
318    uint8_t lun[8];
319    itt_t itt; /* Initiator Task Tag */
320    __be32 ttt; /* Target Transfer Tag */
321    __be32 statsn;
322    __be32 exp_cmdsn;
323    __be32 max_cmdsn;
324    __be32 r2tsn;
325    __be32 data_offset;
326    __be32 data_length;
327};
328
329/* SCSI Data Hdr */
330struct iscsi_data {
331    uint8_t opcode;
332    uint8_t flags;
333    uint8_t rsvd2[2];
334    uint8_t rsvd3;
335    uint8_t dlength[3];
336    uint8_t lun[8];
337    itt_t itt;
338    __be32 ttt;
339    __be32 rsvd4;
340    __be32 exp_statsn;
341    __be32 rsvd5;
342    __be32 datasn;
343    __be32 offset;
344    __be32 rsvd6;
345    /* Payload */
346};
347
348/* SCSI Data Response Hdr */
349struct iscsi_data_rsp {
350    uint8_t opcode;
351    uint8_t flags;
352    uint8_t rsvd2;
353    uint8_t cmd_status;
354    uint8_t hlength;
355    uint8_t dlength[3];
356    uint8_t lun[8];
357    itt_t itt;
358    __be32 ttt;
359    __be32 statsn;
360    __be32 exp_cmdsn;
361    __be32 max_cmdsn;
362    __be32 datasn;
363    __be32 offset;
364    __be32 residual_count;
365};
366
367/* Data Response PDU flags */
368#define ISCSI_FLAG_DATA_ACK 0x40
369#define ISCSI_FLAG_DATA_OVERFLOW 0x04
370#define ISCSI_FLAG_DATA_UNDERFLOW 0x02
371#define ISCSI_FLAG_DATA_STATUS 0x01
372
373/* Text Header */
374struct iscsi_text {
375    uint8_t opcode;
376    uint8_t flags;
377    uint8_t rsvd2[2];
378    uint8_t hlength;
379    uint8_t dlength[3];
380    uint8_t rsvd4[8];
381    itt_t itt;
382    __be32 ttt;
383    __be32 cmdsn;
384    __be32 exp_statsn;
385    uint8_t rsvd5[16];
386    /* Text - key=value pairs */
387};
388
389#define ISCSI_FLAG_TEXT_CONTINUE 0x40
390
391/* Text Response Header */
392struct iscsi_text_rsp {
393    uint8_t opcode;
394    uint8_t flags;
395    uint8_t rsvd2[2];
396    uint8_t hlength;
397    uint8_t dlength[3];
398    uint8_t rsvd4[8];
399    itt_t itt;
400    __be32 ttt;
401    __be32 statsn;
402    __be32 exp_cmdsn;
403    __be32 max_cmdsn;
404    uint8_t rsvd5[12];
405    /* Text Response - key:value pairs */
406};
407
408/* Login Header */
409struct iscsi_login {
410    uint8_t opcode;
411    uint8_t flags;
412    uint8_t max_version; /* Max. version supported */
413    uint8_t min_version; /* Min. version supported */
414    uint8_t hlength;
415    uint8_t dlength[3];
416    uint8_t isid[6]; /* Initiator Session ID */
417    __be16 tsih; /* Target Session Handle */
418    itt_t itt; /* Initiator Task Tag */
419    __be16 cid;
420    __be16 rsvd3;
421    __be32 cmdsn;
422    __be32 exp_statsn;
423    uint8_t rsvd5[16];
424};
425
426/* Login PDU flags */
427#define ISCSI_FLAG_LOGIN_TRANSIT 0x80
428#define ISCSI_FLAG_LOGIN_CONTINUE 0x40
429#define ISCSI_FLAG_LOGIN_CURRENT_STAGE_MASK 0x0C /* 2 bits */
430#define ISCSI_FLAG_LOGIN_NEXT_STAGE_MASK 0x03 /* 2 bits */
431
432#define ISCSI_LOGIN_CURRENT_STAGE(flags) \
433    ((flags & ISCSI_FLAG_LOGIN_CURRENT_STAGE_MASK) >> 2)
434#define ISCSI_LOGIN_NEXT_STAGE(flags) \
435    (flags & ISCSI_FLAG_LOGIN_NEXT_STAGE_MASK)
436
437/* Login Response Header */
438struct iscsi_login_rsp {
439    uint8_t opcode;
440    uint8_t flags;
441    uint8_t max_version; /* Max. version supported */
442    uint8_t active_version; /* Active version */
443    uint8_t hlength;
444    uint8_t dlength[3];
445    uint8_t isid[6]; /* Initiator Session ID */
446    __be16 tsih; /* Target Session Handle */
447    itt_t itt; /* Initiator Task Tag */
448    __be32 rsvd3;
449    __be32 statsn;
450    __be32 exp_cmdsn;
451    __be32 max_cmdsn;
452    uint8_t status_class; /* see Login RSP ststus classes below */
453    uint8_t status_detail; /* see Login RSP Status details below */
454    uint8_t rsvd4[10];
455};
456
457/* Login stage (phase) codes for CSG, NSG */
458#define ISCSI_INITIAL_LOGIN_STAGE -1
459#define ISCSI_SECURITY_NEGOTIATION_STAGE 0
460#define ISCSI_OP_PARMS_NEGOTIATION_STAGE 1
461#define ISCSI_FULL_FEATURE_PHASE 3
462
463/* Login Status response classes */
464#define ISCSI_STATUS_CLS_SUCCESS 0x00
465#define ISCSI_STATUS_CLS_REDIRECT 0x01
466#define ISCSI_STATUS_CLS_INITIATOR_ERR 0x02
467#define ISCSI_STATUS_CLS_TARGET_ERR 0x03
468
469/* Login Status response detail codes */
470/* Class-0 (Success) */
471#define ISCSI_LOGIN_STATUS_ACCEPT 0x00
472
473/* Class-1 (Redirection) */
474#define ISCSI_LOGIN_STATUS_TGT_MOVED_TEMP 0x01
475#define ISCSI_LOGIN_STATUS_TGT_MOVED_PERM 0x02
476
477/* Class-2 (Initiator Error) */
478#define ISCSI_LOGIN_STATUS_INIT_ERR 0x00
479#define ISCSI_LOGIN_STATUS_AUTH_FAILED 0x01
480#define ISCSI_LOGIN_STATUS_TGT_FORBIDDEN 0x02
481#define ISCSI_LOGIN_STATUS_TGT_NOT_FOUND 0x03
482#define ISCSI_LOGIN_STATUS_TGT_REMOVED 0x04
483#define ISCSI_LOGIN_STATUS_NO_VERSION 0x05
484#define ISCSI_LOGIN_STATUS_ISID_ERROR 0x06
485#define ISCSI_LOGIN_STATUS_MISSING_FIELDS 0x07
486#define ISCSI_LOGIN_STATUS_CONN_ADD_FAILED 0x08
487#define ISCSI_LOGIN_STATUS_NO_SESSION_TYPE 0x09
488#define ISCSI_LOGIN_STATUS_NO_SESSION 0x0a
489#define ISCSI_LOGIN_STATUS_INVALID_REQUEST 0x0b
490
491/* Class-3 (Target Error) */
492#define ISCSI_LOGIN_STATUS_TARGET_ERROR 0x00
493#define ISCSI_LOGIN_STATUS_SVC_UNAVAILABLE 0x01
494#define ISCSI_LOGIN_STATUS_NO_RESOURCES 0x02
495
496/* Logout Header */
497struct iscsi_logout {
498    uint8_t opcode;
499    uint8_t flags;
500    uint8_t rsvd1[2];
501    uint8_t hlength;
502    uint8_t dlength[3];
503    uint8_t rsvd2[8];
504    itt_t itt; /* Initiator Task Tag */
505    __be16 cid;
506    uint8_t rsvd3[2];
507    __be32 cmdsn;
508    __be32 exp_statsn;
509    uint8_t rsvd4[16];
510};
511
512/* Logout PDU flags */
513#define ISCSI_FLAG_LOGOUT_REASON_MASK 0x7F
514
515/* logout reason_code values */
516
517#define ISCSI_LOGOUT_REASON_CLOSE_SESSION 0
518#define ISCSI_LOGOUT_REASON_CLOSE_CONNECTION 1
519#define ISCSI_LOGOUT_REASON_RECOVERY 2
520#define ISCSI_LOGOUT_REASON_AEN_REQUEST 3
521
522/* Logout Response Header */
523struct iscsi_logout_rsp {
524    uint8_t opcode;
525    uint8_t flags;
526    uint8_t response; /* see Logout response values below */
527    uint8_t rsvd2;
528    uint8_t hlength;
529    uint8_t dlength[3];
530    uint8_t rsvd3[8];
531    itt_t itt; /* Initiator Task Tag */
532    __be32 rsvd4;
533    __be32 statsn;
534    __be32 exp_cmdsn;
535    __be32 max_cmdsn;
536    __be32 rsvd5;
537    __be16 t2wait;
538    __be16 t2retain;
539    __be32 rsvd6;
540};
541
542/* logout response status values */
543
544#define ISCSI_LOGOUT_SUCCESS 0
545#define ISCSI_LOGOUT_CID_NOT_FOUND 1
546#define ISCSI_LOGOUT_RECOVERY_UNSUPPORTED 2
547#define ISCSI_LOGOUT_CLEANUP_FAILED 3
548
549/* SNACK Header */
550struct iscsi_snack {
551    uint8_t opcode;
552    uint8_t flags;
553    uint8_t rsvd2[14];
554    itt_t itt;
555    __be32 begrun;
556    __be32 runlength;
557    __be32 exp_statsn;
558    __be32 rsvd3;
559    __be32 exp_datasn;
560    uint8_t rsvd6[8];
561};
562
563/* SNACK PDU flags */
564#define ISCSI_FLAG_SNACK_TYPE_MASK 0x0F /* 4 bits */
565
566/* Reject Message Header */
567struct iscsi_reject {
568    uint8_t opcode;
569    uint8_t flags;
570    uint8_t reason;
571    uint8_t rsvd2;
572    uint8_t hlength;
573    uint8_t dlength[3];
574    uint8_t rsvd3[8];
575    __be32 ffffffff;
576    uint8_t rsvd4[4];
577    __be32 statsn;
578    __be32 exp_cmdsn;
579    __be32 max_cmdsn;
580    __be32 datasn;
581    uint8_t rsvd5[8];
582    /* Text - Rejected hdr */
583};
584
585/* Reason for Reject */
586#define ISCSI_REASON_CMD_BEFORE_LOGIN 1
587#define ISCSI_REASON_DATA_DIGEST_ERROR 2
588#define ISCSI_REASON_DATA_SNACK_REJECT 3
589#define ISCSI_REASON_PROTOCOL_ERROR 4
590#define ISCSI_REASON_CMD_NOT_SUPPORTED 5
591#define ISCSI_REASON_IMM_CMD_REJECT 6
592#define ISCSI_REASON_TASK_IN_PROGRESS 7
593#define ISCSI_REASON_INVALID_SNACK 8
594#define ISCSI_REASON_BOOKMARK_INVALID 9
595#define ISCSI_REASON_BOOKMARK_NO_RESOURCES 10
596#define ISCSI_REASON_NEGOTIATION_RESET 11
597
598/* Max. number of Key=Value pairs in a text message */
599#define MAX_KEY_VALUE_PAIRS 8192
600
601/* maximum length for text keys/values */
602#define KEY_MAXLEN 64
603#define VALUE_MAXLEN 255
604#define TARGET_NAME_MAXLEN VALUE_MAXLEN
605
606#define ISCSI_DEF_MAX_RECV_SEG_LEN 8192
607#define ISCSI_MIN_MAX_RECV_SEG_LEN 512
608#define ISCSI_MAX_MAX_RECV_SEG_LEN 16777215
609
610#define ISCSI_DEF_FIRST_BURST_LEN 65536
611#define ISCSI_MIN_FIRST_BURST_LEN 512
612#define ISCSI_MAX_FIRST_BURST_LEN 16777215
613
614#define ISCSI_DEF_MAX_BURST_LEN 262144
615#define ISCSI_MIN_MAX_BURST_LEN 512
616#define ISCSI_MAX_MAX_BURST_LEN 16777215
617
618#define ISCSI_DEF_TIME2WAIT 2
619
620/************************* RFC 3720 End *****************************/
621
622#endif /* ISCSI_PROTO_H */
623

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