summaryrefslogtreecommitdiffstats
path: root/sys/dev/isp/isp_target.h
blob: e57df6cc354925005858a7b08d9bdd3dd2e728c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
/* $FreeBSD$ */
/*-
 *  Copyright (c) 1997-2007 by Matthew Jacob
 *  All rights reserved.
 * 
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 * 
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 
 *  THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 *  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 *  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 *  ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
 *  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 *  DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 *  OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 *  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 *  LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 *  OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 *  SUCH DAMAGE.
 */
/*
 * Qlogic Target Mode Structure and Flag Definitions
 */
#ifndef	_ISP_TARGET_H
#define	_ISP_TARGET_H

#define	QLTM_SENSELEN	18	/* non-FC cards only */
#define QLTM_SVALID	0x80

/*
 * Structure for Enable Lun and Modify Lun queue entries
 */
typedef struct {
	isphdr_t	le_header;
	uint32_t	le_reserved;
	uint8_t		le_lun;
	uint8_t		le_rsvd;
	uint8_t		le_ops;		/* Modify LUN only */
	uint8_t		le_tgt;		/* Not for FC */
	uint32_t	le_flags;	/* Not for FC */
	uint8_t		le_status;
	uint8_t		le_reserved2;
	uint8_t		le_cmd_count;
	uint8_t		le_in_count;
	uint8_t		le_cdb6len;	/* Not for FC */
	uint8_t		le_cdb7len;	/* Not for FC */
	uint16_t	le_timeout;
	uint16_t	le_reserved3[20];
} lun_entry_t;

/*
 * le_flags values
 */
#define LUN_TQAE	0x00000002	/* bit1  Tagged Queue Action Enable */
#define LUN_DSSM	0x01000000	/* bit24 Disable Sending SDP Message */
#define	LUN_DISAD	0x02000000	/* bit25 Disable autodisconnect */
#define LUN_DM		0x40000000	/* bit30 Disconnects Mandatory */

/*
 * le_ops values
 */
#define LUN_CCINCR	0x01	/* increment command count */
#define LUN_CCDECR	0x02	/* decrement command count */
#define LUN_ININCR	0x40	/* increment immed. notify count */
#define LUN_INDECR	0x80	/* decrement immed. notify count */

/*
 * le_status values
 */
#define	LUN_OK		0x01	/* we be rockin' */
#define LUN_ERR		0x04	/* request completed with error */
#define LUN_INVAL	0x06	/* invalid request */
#define LUN_NOCAP	0x16	/* can't provide requested capability */
#define LUN_ENABLED	0x3E	/* LUN already enabled */

/*
 * Immediate Notify Entry structure
 */
#define IN_MSGLEN	8	/* 8 bytes */
#define IN_RSVDLEN	8	/* 8 words */
typedef struct {
	isphdr_t	in_header;
	uint32_t	in_reserved;
	uint8_t		in_lun;		/* lun */
	uint8_t		in_iid;		/* initiator */
	uint8_t		in_reserved2;
	uint8_t		in_tgt;		/* target */
	uint32_t	in_flags;
	uint8_t		in_status;
	uint8_t		in_rsvd2;
	uint8_t		in_tag_val;	/* tag value */
	uint8_t		in_tag_type;	/* tag type */
	uint16_t	in_seqid;	/* sequence id */
	uint8_t		in_msg[IN_MSGLEN];	/* SCSI message bytes */
	uint16_t	in_reserved3[IN_RSVDLEN];
	uint8_t		in_sense[QLTM_SENSELEN];/* suggested sense data */
} in_entry_t;

typedef struct {
	isphdr_t	in_header;
	uint32_t	in_reserved;
	uint8_t		in_lun;		/* lun */
	uint8_t		in_iid;		/* initiator */
	uint16_t	in_scclun;
	uint32_t	in_reserved2;
	uint16_t	in_status;
	uint16_t	in_task_flags;
	uint16_t	in_seqid;	/* sequence id */
} in_fcentry_t;

typedef struct {
	isphdr_t	in_header;
	uint32_t	in_reserved;
	uint16_t	in_iid;		/* initiator */
	uint16_t	in_scclun;
	uint32_t	in_reserved2;
	uint16_t	in_status;
	uint16_t	in_task_flags;
	uint16_t	in_seqid;	/* sequence id */
} in_fcentry_e_t;

/*
 * Values for the in_status field
 */
#define	IN_REJECT	0x0D	/* Message Reject message received */
#define IN_RESET	0x0E	/* Bus Reset occurred */
#define IN_NO_RCAP	0x16	/* requested capability not available */
#define IN_IDE_RECEIVED	0x33	/* Initiator Detected Error msg received */
#define IN_RSRC_UNAVAIL	0x34	/* resource unavailable */
#define IN_MSG_RECEIVED	0x36	/* SCSI message received */
#define	IN_ABORT_TASK	0x20	/* task named in RX_ID is being aborted (FC) */
#define	IN_PORT_LOGOUT	0x29	/* port has logged out (FC) */
#define	IN_PORT_CHANGED	0x2A	/* port changed */
#define	IN_GLOBAL_LOGO	0x2E	/* all ports logged out */
#define	IN_NO_NEXUS	0x3B	/* Nexus not established */

/*
 * Values for the in_task_flags field- should only get one at a time!
 */
#define	TASK_FLAGS_RESERVED_MASK	(0xe700)
#define	TASK_FLAGS_CLEAR_ACA		(1<<14)
#define	TASK_FLAGS_TARGET_RESET		(1<<13)
#define	TASK_FLAGS_LUN_RESET		(1<<12)
#define	TASK_FLAGS_CLEAR_TASK_SET	(1<<10)
#define	TASK_FLAGS_ABORT_TASK_SET	(1<<9)

/*
 * ISP24XX Immediate Notify
 */
typedef struct {
	isphdr_t	in_header;
	uint32_t	in_reserved;
	uint16_t	in_nphdl;
	uint16_t	in_reserved1;
	uint16_t	in_flags;
	uint16_t	in_srr_rxid;
	uint16_t	in_status;
	uint8_t		in_status_subcode;
	uint8_t		in_reserved2;
	uint32_t	in_rxid;
	uint16_t	in_srr_reloff_lo;
	uint16_t	in_srr_reloff_hi;
	uint16_t	in_srr_iu;
	uint16_t	in_srr_oxid;
	uint8_t		in_reserved3[18];
	uint8_t		in_reserved4;
	uint8_t		in_vpindex;
	uint32_t	in_reserved5;
	uint16_t	in_portid_lo;
	uint8_t		in_portid_hi;
	uint8_t		in_reserved6;
	uint16_t	in_reserved7;
	uint16_t	in_oxid;
} in_fcentry_24xx_t;

#define	IN24XX_FLAG_PUREX_IOCB		0x1
#define	IN24XX_FLAG_GLOBAL_LOGOUT	0x2

#define	IN24XX_LIP_RESET	0x0E
#define	IN24XX_LINK_RESET	0x0F
#define	IN24XX_PORT_LOGOUT	0x29
#define	IN24XX_PORT_CHANGED	0x2A
#define	IN24XX_LINK_FAILED	0x2E
#define	IN24XX_SRR_RCVD		0x45
#define	IN24XX_ELS_RCVD		0x46	/*
					 * login-affectin ELS received- check
					 * subcode for specific opcode
					 */
/*
 * Notify Acknowledge Entry structure
 */
#define NA_RSVDLEN	22
typedef struct {
	isphdr_t	na_header;
	uint32_t	na_reserved;
	uint8_t		na_lun;		/* lun */
	uint8_t		na_iid;		/* initiator */
	uint8_t		na_reserved2;
	uint8_t		na_tgt;		/* target */
	uint32_t	na_flags;
	uint8_t		na_status;
	uint8_t		na_event;
	uint16_t	na_seqid;	/* sequence id */
	uint16_t	na_reserved3[NA_RSVDLEN];
} na_entry_t;

/*
 * Value for the na_event field
 */
#define NA_RST_CLRD	0x80	/* Clear an async event notification */
#define	NA_OK		0x01	/* Notify Acknowledge Succeeded */
#define	NA_INVALID	0x06	/* Invalid Notify Acknowledge */

#define	NA2_RSVDLEN	21
typedef struct {
	isphdr_t	na_header;
	uint32_t	na_reserved;
	uint8_t		na_reserved1;
	uint8_t		na_iid;		/* initiator loop id */
	uint16_t	na_response;
	uint16_t	na_flags;
	uint16_t	na_reserved2;
	uint16_t	na_status;
	uint16_t	na_task_flags;
	uint16_t	na_seqid;	/* sequence id */
	uint16_t	na_reserved3[NA2_RSVDLEN];
} na_fcentry_t;

typedef struct {
	isphdr_t	na_header;
	uint32_t	na_reserved;
	uint16_t	na_iid;		/* initiator loop id */
	uint16_t	na_response;	/* response code */
	uint16_t	na_flags;
	uint16_t	na_reserved2;
	uint16_t	na_status;
	uint16_t	na_task_flags;
	uint16_t	na_seqid;	/* sequence id */
	uint16_t	na_reserved3[NA2_RSVDLEN];
} na_fcentry_e_t;

#define	NAFC_RCOUNT	0x80	/* increment resource count */
#define NAFC_RST_CLRD	0x20	/* Clear LIP Reset */
#define	NAFC_TVALID	0x10	/* task mangement response code is valid */

/*
 * ISP24XX Notify Acknowledge
 */

typedef struct {
	isphdr_t	na_header;
	uint32_t	na_handle;
	uint16_t	na_nphdl;
	uint16_t	na_reserved1;
	uint16_t	na_flags;
	uint16_t	na_srr_rxid;
	uint16_t	na_status;
	uint8_t		na_status_subcode;
	uint8_t		na_reserved2;
	uint32_t	na_rxid;
	uint16_t	na_srr_reloff_lo;
	uint16_t	na_srr_reloff_hi;
	uint16_t	na_srr_iu;
	uint16_t	na_srr_flags;
	uint8_t		na_reserved3[18];
	uint8_t		na_reserved4;
	uint8_t		na_vpindex;
	uint8_t		na_srr_reject_vunique;
	uint8_t		na_srr_reject_explanation;
	uint8_t		na_srr_reject_code;
	uint8_t		na_reserved5;
	uint8_t		na_reserved6[6];
	uint16_t	na_oxid;
} na_fcentry_24xx_t;

/*
 * Accept Target I/O Entry structure
 */
#define ATIO_CDBLEN	26

typedef struct {
	isphdr_t	at_header;
	uint16_t	at_reserved;
	uint16_t	at_handle;
	uint8_t		at_lun;		/* lun */
	uint8_t		at_iid;		/* initiator */
	uint8_t		at_cdblen; 	/* cdb length */
	uint8_t		at_tgt;		/* target */
	uint32_t	at_flags;
	uint8_t		at_status;	/* firmware status */
	uint8_t		at_scsi_status;	/* scsi status */
	uint8_t		at_tag_val;	/* tag value */
	uint8_t		at_tag_type;	/* tag type */
	uint8_t		at_cdb[ATIO_CDBLEN];	/* received CDB */
	uint8_t		at_sense[QLTM_SENSELEN];/* suggested sense data */
} at_entry_t;

/*
 * at_flags values
 */
#define AT_NODISC	0x00008000	/* disconnect disabled */
#define AT_TQAE		0x00000002	/* Tagged Queue Action enabled */

/*
 * at_status values
 */
#define AT_PATH_INVALID	0x07	/* ATIO sent to firmware for disabled lun */
#define	AT_RESET	0x0E	/* SCSI Bus Reset Occurred */
#define AT_PHASE_ERROR	0x14	/* Bus phase sequence error */
#define AT_NOCAP	0x16	/* Requested capability not available */
#define AT_BDR_MSG	0x17	/* Bus Device Reset msg received */
#define AT_CDB		0x3D	/* CDB received */
/*
 * Macros to create and fetch and test concatenated handle and tag value macros
 */

#define	AT_MAKE_TAGID(tid, bus, inst, aep)				\
	tid = aep->at_handle;						\
	if (aep->at_flags & AT_TQAE) {					\
		tid |= (aep->at_tag_val << 16);				\
		tid |= (1 << 24);					\
	}								\
	tid |= (bus << 25);						\
	tid |= (inst << 26)

#define	CT_MAKE_TAGID(tid, bus, inst, ct)				\
	tid = ct->ct_fwhandle;						\
	if (ct->ct_flags & CT_TQAE) {					\
		tid |= (ct->ct_tag_val << 16);				\
		tid |= (1 << 24);					\
	}								\
	tid |= ((bus & 0x1) << 25);					\
	tid |= (inst << 26)

#define	AT_HAS_TAG(val)		((val) & (1 << 24))
#define	AT_GET_TAG(val)		(((val) >> 16) & 0xff)
#define	AT_GET_INST(val)	(((val) >> 26) & 0x3f)
#define	AT_GET_BUS(val)		(((val) >> 25) & 0x1)
#define	AT_GET_HANDLE(val)	((val) & 0xffff)

#define	IN_MAKE_TAGID(tid, bus, inst, inp)				\
	tid = inp->in_seqid;						\
	tid |= (inp->in_tag_val << 16);					\
	tid |= (1 << 24);						\
	tid |= (bus << 25);						\
	tid |= (inst << 26)

#define	TAG_INSERT_INST(tid, inst)					\
	tid &= ~(0x3ffffff);						\
	tid |= (inst << 26)

#define	TAG_INSERT_BUS(tid, bus)					\
	tid &= ~(1 << 25);						\
	tid |= (bus << 25)

/*
 * Accept Target I/O Entry structure, Type 2
 */
#define ATIO2_CDBLEN	16

typedef struct {
	isphdr_t	at_header;
	uint32_t	at_reserved;
	uint8_t		at_lun;		/* lun or reserved */
	uint8_t		at_iid;		/* initiator */
	uint16_t	at_rxid; 	/* response ID */
	uint16_t	at_flags;
	uint16_t	at_status;	/* firmware status */
	uint8_t		at_crn;		/* command reference number */
	uint8_t		at_taskcodes;
	uint8_t		at_taskflags;
	uint8_t		at_execodes;
	uint8_t		at_cdb[ATIO2_CDBLEN];	/* received CDB */
	uint32_t	at_datalen;		/* allocated data len */
	uint16_t	at_scclun;		/* SCC Lun or reserved */
	uint16_t	at_wwpn[4];		/* WWPN of initiator */
	uint16_t	at_reserved2[6];
	uint16_t	at_oxid;
} at2_entry_t;

typedef struct {
	isphdr_t	at_header;
	uint32_t	at_reserved;
	uint16_t	at_iid;		/* initiator */
	uint16_t	at_rxid; 	/* response ID */
	uint16_t	at_flags;
	uint16_t	at_status;	/* firmware status */
	uint8_t		at_crn;		/* command reference number */
	uint8_t		at_taskcodes;
	uint8_t		at_taskflags;
	uint8_t		at_execodes;
	uint8_t		at_cdb[ATIO2_CDBLEN];	/* received CDB */
	uint32_t	at_datalen;		/* allocated data len */
	uint16_t	at_scclun;		/* SCC Lun or reserved */
	uint16_t	at_wwpn[4];		/* WWPN of initiator */
	uint16_t	at_reserved2[6];
	uint16_t	at_oxid;
} at2e_entry_t;

#define	ATIO2_WWPN_OFFSET	0x2A
#define	ATIO2_OXID_OFFSET	0x3E

#define	ATIO2_TC_ATTR_MASK	0x7
#define	ATIO2_TC_ATTR_SIMPLEQ	0
#define	ATIO2_TC_ATTR_HEADOFQ	1
#define	ATIO2_TC_ATTR_ORDERED	2
#define	ATIO2_TC_ATTR_ACAQ	4
#define	ATIO2_TC_ATTR_UNTAGGED	5

#define	ATIO2_EX_WRITE		0x1
#define	ATIO2_EX_READ		0x2
/*
 * Macros to create and fetch and test concatenated handle and tag value macros
 */
#define	AT2_MAKE_TAGID(tid, bus, inst, aep)				\
	tid = aep->at_rxid;						\
	tid |= (((uint64_t)inst) << 32);				\
	tid |= (((uint64_t)bus) << 48)

#define	CT2_MAKE_TAGID(tid, bus, inst, ct)				\
	tid = ct->ct_rxid;						\
	tid |= (((uint64_t)inst) << 32);				\
	tid |= (((uint64_t)(bus & 0xff)) << 48)

#define	AT2_HAS_TAG(val)	1
#define	AT2_GET_TAG(val)	((val) & 0xffffffff)
#define	AT2_GET_INST(val)	((val) >> 32)
#define	AT2_GET_HANDLE		AT2_GET_TAG
#define	AT2_GET_BUS(val)	(((val) >> 48) & 0xff)

#define	FC_HAS_TAG	AT2_HAS_TAG
#define	FC_GET_TAG	AT2_GET_TAG
#define	FC_GET_INST	AT2_GET_INST
#define	FC_GET_HANDLE	AT2_GET_HANDLE

#define	IN_FC_MAKE_TAGID(tid, bus, inst, seqid)				\
	tid = seqid;							\
	tid |= (((uint64_t)inst) << 32);				\
	tid |= (((uint64_t)(bus & 0xff)) << 48)

#define	FC_TAG_INSERT_INST(tid, inst)					\
	tid &= ~0xffff00000000ull;					\
	tid |= (((uint64_t)inst) << 32)

/*
 * 24XX ATIO Definition
 *
 * This is *quite* different from other entry types.
 * First of all, it has its own queue it comes in on.
 *
 * Secondly, it doesn't have a normal header.
 *
 * Thirdly, it's just a passthru of the FCP CMND IU
 * which is recorded in big endian mode.
 */
typedef struct {
	uint8_t		at_type;
	uint8_t		at_count;
	/*
	 * Task attribute in high four bits,
	 * the rest is the FCP CMND IU Length.
	 * NB: the command can extend past the
	 * length for a single queue entry.
	 */
	uint16_t	at_ta_len;
	uint32_t	at_rxid;
	fc_hdr_t	at_hdr;
	fcp_cmnd_iu_t	at_cmnd;
} at7_entry_t;


/*
 * Continue Target I/O Entry structure
 * Request from driver. The response from the
 * ISP firmware is the same except that the last 18
 * bytes are overwritten by suggested sense data if
 * the 'autosense valid' bit is set in the status byte.
 */
typedef struct {
	isphdr_t	ct_header;
	uint16_t	ct_syshandle;
	uint16_t	ct_fwhandle;	/* required by f/w */
	uint8_t		ct_lun;	/* lun */
	uint8_t		ct_iid;	/* initiator id */
	uint8_t		ct_reserved2;
	uint8_t		ct_tgt;	/* our target id */
	uint32_t	ct_flags;
	uint8_t 	ct_status;	/* isp status */
	uint8_t 	ct_scsi_status;	/* scsi status */
	uint8_t 	ct_tag_val;	/* tag value */
	uint8_t 	ct_tag_type;	/* tag type */
	uint32_t	ct_xfrlen;	/* transfer length */
	uint32_t	ct_resid;	/* residual length */
	uint16_t	ct_timeout;
	uint16_t	ct_seg_count;
	ispds_t		ct_dataseg[ISP_RQDSEG];
} ct_entry_t;

/*
 * For some of the dual port SCSI adapters, port (bus #) is reported
 * in the MSbit of ct_iid. Bit fields are a bit too awkward here.
 *
 * Note that this does not apply to FC adapters at all which can and
 * do report IIDs between 0x81 && 0xfe (or 0x7ff) which represent devices
 * that have logged in across a SCSI fabric.
 */
#define	GET_IID_VAL(x)		(x & 0x3f)
#define	GET_BUS_VAL(x)		((x >> 7) & 0x1)
#define	SET_IID_VAL(y, x)	y = ((y & ~0x3f) | (x & 0x3f))
#define	SET_BUS_VAL(y, x)	y = ((y & 0x3f) | ((x & 0x1) << 7))

/*
 * ct_flags values
 */
#define CT_TQAE		0x00000002	/* bit  1, Tagged Queue Action enable */
#define CT_DATA_IN	0x00000040	/* bits 6&7, Data direction */
#define CT_DATA_OUT	0x00000080	/* bits 6&7, Data direction */
#define CT_NO_DATA	0x000000C0	/* bits 6&7, Data direction */
#define	CT_CCINCR	0x00000100	/* bit 8, autoincrement atio count */
#define CT_DATAMASK	0x000000C0	/* bits 6&7, Data direction */
#define	CT_INISYNCWIDE	0x00004000	/* bit 14, Do Sync/Wide Negotiation */
#define CT_NODISC	0x00008000	/* bit 15, Disconnects disabled */
#define CT_DSDP		0x01000000	/* bit 24, Disable Save Data Pointers */
#define CT_SENDRDP	0x04000000	/* bit 26, Send Restore Pointers msg */
#define CT_SENDSTATUS	0x80000000	/* bit 31, Send SCSI status byte */

/*
 * ct_status values
 * - set by the firmware when it returns the CTIO
 */
#define CT_OK		0x01	/* completed without error */
#define CT_ABORTED	0x02	/* aborted by host */
#define CT_ERR		0x04	/* see sense data for error */
#define CT_INVAL	0x06	/* request for disabled lun */
#define CT_NOPATH	0x07	/* invalid ITL nexus */
#define	CT_INVRXID	0x08	/* (FC only) Invalid RX_ID */
#define	CT_DATA_OVER	0x09	/* (FC only) Data Overrun */
#define CT_RSELTMO	0x0A	/* reselection timeout after 2 tries */
#define CT_TIMEOUT	0x0B	/* timed out */
#define CT_RESET	0x0E	/* SCSI Bus Reset occurred */
#define	CT_PARITY	0x0F	/* Uncorrectable Parity Error */
#define	CT_BUS_ERROR	0x10	/* (FC Only) DMA PCI Error */
#define	CT_PANIC	0x13	/* Unrecoverable Error */
#define CT_PHASE_ERROR	0x14	/* Bus phase sequence error */
#define	CT_DATA_UNDER	0x15	/* (FC only) Data Underrun */
#define CT_BDR_MSG	0x17	/* Bus Device Reset msg received */
#define CT_TERMINATED	0x19	/* due to Terminate Transfer mbox cmd */
#define	CT_PORTUNAVAIL	0x28	/* port not available */
#define	CT_LOGOUT	0x29	/* port logout */
#define	CT_PORTCHANGED	0x2A	/* port changed */
#define	CT_IDE		0x33	/* Initiator Detected Error */
#define CT_NOACK	0x35	/* Outstanding Immed. Notify. entry */
#define	CT_SRR		0x45	/* SRR Received */
#define	CT_LUN_RESET	0x48	/* Lun Reset Received */

/*
 * When the firmware returns a CTIO entry, it may overwrite the last
 * part of the structure with sense data. This starts at offset 0x2E
 * into the entry, which is in the middle of ct_dataseg[1]. Rather
 * than define a new struct for this, I'm just using the sense data
 * offset.
 */
#define CTIO_SENSE_OFFSET	0x2E

/*
 * Entry length in u_longs. All entries are the same size so
 * any one will do as the numerator.
 */
#define UINT32_ENTRY_SIZE	(sizeof(at_entry_t)/sizeof(uint32_t))

/*
 * QLA2100 CTIO (type 2) entry
 */
#define	MAXRESPLEN	26
typedef struct {
	isphdr_t	ct_header;
	uint32_t	ct_syshandle;
	uint8_t		ct_lun;		/* lun */
	uint8_t		ct_iid;		/* initiator id */
	uint16_t	ct_rxid;	/* response ID */
	uint16_t	ct_flags;
	uint16_t 	ct_status;	/* isp status */
	uint16_t	ct_timeout;
	uint16_t	ct_seg_count;
	uint32_t	ct_reloff;	/* relative offset */
	int32_t		ct_resid;	/* residual length */
	union {
		/*
		 * The three different modes that the target driver
		 * can set the CTIO{2,3,4} up as.
		 *
		 * The first is for sending FCP_DATA_IUs as well as
		 * (optionally) sending a terminal SCSI status FCP_RSP_IU.
		 *
		 * The second is for sending SCSI sense data in an FCP_RSP_IU.
		 * Note that no FCP_DATA_IUs will be sent.
		 *
		 * The third is for sending FCP_RSP_IUs as built specifically
		 * in system memory as located by the isp_dataseg.
		 */
		struct {
			uint32_t _reserved;
			uint16_t _reserved2;
			uint16_t ct_scsi_status;
			uint32_t ct_xfrlen;
			union {
				ispds_t ct_dataseg[ISP_RQDSEG_T2];
				ispds64_t ct_dataseg64[ISP_RQDSEG_T3];
				ispdslist_t ct_dslist;
			} u;
		} m0;
		struct {
			uint16_t _reserved;
			uint16_t _reserved2;
			uint16_t ct_senselen;
			uint16_t ct_scsi_status;
			uint16_t ct_resplen;
			uint8_t  ct_resp[MAXRESPLEN];
		} m1;
		struct {
			uint32_t _reserved;
			uint16_t _reserved2;
			uint16_t _reserved3;
			uint32_t ct_datalen;
			ispds_t ct_fcp_rsp_iudata;
		} m2;
	} rsp;
} ct2_entry_t;

typedef struct {
	isphdr_t	ct_header;
	uint32_t	ct_syshandle;
	uint16_t	ct_iid;		/* initiator id */
	uint16_t	ct_rxid;	/* response ID */
	uint16_t	ct_flags;
	uint16_t 	ct_status;	/* isp status */
	uint16_t	ct_timeout;
	uint16_t	ct_seg_count;
	uint32_t	ct_reloff;	/* relative offset */
	int32_t		ct_resid;	/* residual length */
	union {
		struct {
			uint32_t _reserved;
			uint16_t _reserved2;
			uint16_t ct_scsi_status;
			uint32_t ct_xfrlen;
			union {
				ispds_t ct_dataseg[ISP_RQDSEG_T2];
				ispds64_t ct_dataseg64[ISP_RQDSEG_T3];
				ispdslist_t ct_dslist;
			} u;
		} m0;
		struct {
			uint16_t _reserved;
			uint16_t _reserved2;
			uint16_t ct_senselen;
			uint16_t ct_scsi_status;
			uint16_t ct_resplen;
			uint8_t  ct_resp[MAXRESPLEN];
		} m1;
		struct {
			uint32_t _reserved;
			uint16_t _reserved2;
			uint16_t _reserved3;
			uint32_t ct_datalen;
			ispds_t ct_fcp_rsp_iudata;
		} m2;
	} rsp;
} ct2e_entry_t;

/*
 * ct_flags values for CTIO2
 */
#define	CT2_FLAG_MODE0	0x0000
#define	CT2_FLAG_MODE1	0x0001
#define	CT2_FLAG_MODE2	0x0002
#define		CT2_FLAG_MMASK	0x0003
#define CT2_DATA_IN	0x0040
#define CT2_DATA_OUT	0x0080
#define CT2_NO_DATA	0x00C0
#define 	CT2_DATAMASK	0x00C0
#define	CT2_CCINCR	0x0100
#define	CT2_FASTPOST	0x0200
#define	CT2_CONFIRM	0x2000
#define	CT2_TERMINATE	0x4000
#define CT2_SENDSTATUS	0x8000

/*
 * ct_status values are (mostly) the same as that for ct_entry.
 */

/*
 * ct_scsi_status values- the low 8 bits are the normal SCSI status
 * we know and love. The upper 8 bits are validity markers for FCP_RSP_IU
 * fields.
 */
#define	CT2_RSPLEN_VALID	0x0100
#define	CT2_SNSLEN_VALID	0x0200
#define	CT2_DATA_OVER		0x0400
#define	CT2_DATA_UNDER		0x0800

/*
 * ISP24XX CTIO
 */
#define	MAXRESPLEN_24XX	24
typedef struct {
	isphdr_t	ct_header;
	uint32_t	ct_syshandle;
	uint16_t	ct_nphdl;	/* status on returned CTIOs */
	uint16_t	ct_timeout;
	uint16_t	ct_seg_count;
	uint8_t		ct_vpindex;
	uint8_t		ct_xflags;
	uint16_t	ct_iid_lo;	/* low 16 bits of portid */
	uint8_t		ct_iid_hi;	/* hi 8 bits of portid */
	uint8_t		ct_reserved;
	uint32_t	ct_rxid;
	uint16_t	ct_senselen;	/* mode 0 only */
	uint16_t	ct_flags;
	int32_t		ct_resid;	/* residual length */
	uint16_t	ct_oxid;
	uint16_t	ct_scsi_status;	/* modes 0 && 1 only */
	union {
		struct {
			uint32_t	reloff;
			uint32_t	reserved0;
			uint32_t	ct_xfrlen;
			uint32_t	reserved1;
			ispds64_t	ds;
		} m0;
		struct {
			uint16_t ct_resplen;
			uint16_t reserved;
			uint8_t  ct_resp[MAXRESPLEN_24XX];
		} m1;
		struct {
			uint32_t reserved0;
			uint32_t ct_datalen;
			uint32_t reserved1;
			ispds64_t ct_fcp_rsp_iudata;
		} m2;
	} rsp;
} ct7_entry_t;

/*
 * ct_flags values for CTIO7
 */
#define CT7_DATA_IN	0x0002
#define CT7_DATA_OUT	0x0001
#define CT7_NO_DATA	0x0000
#define 	CT7_DATAMASK	0x003
#define	CT7_DSD_ENABLE	0x0004
#define	CT7_CONF_STSFD	0x0010
#define	CT7_EXPLCT_CONF	0x0020
#define	CT7_FLAG_MODE0	0x0000
#define	CT7_FLAG_MODE1	0x0040
#define	CT7_FLAG_MODE7	0x0080
#define		CT7_FLAG_MMASK	0x00C0
#define	CT7_FASTPOST	0x0100
#define	CT7_ATTR_MASK	0x1e00	/* task attributes from atio7 */
#define	CT7_CONFIRM	0x2000
#define	CT7_TERMINATE	0x4000
#define CT7_SENDSTATUS	0x8000

/*
 * Type 7 CTIO status codes
 */
#define CT7_OK		0x01	/* completed without error */
#define CT7_ABORTED	0x02	/* aborted by host */
#define CT7_ERR		0x04	/* see sense data for error */
#define CT7_INVAL	0x06	/* request for disabled lun */
#define	CT7_INVRXID	0x08	/* (FC only) Invalid RX_ID */
#define	CT7_DATA_OVER	0x09	/* (FC only) Data Overrun */
#define CT7_TIMEOUT	0x0B	/* timed out */
#define CT7_RESET	0x0E	/* LIP Rset Received */
#define	CT7_BUS_ERROR	0x10	/* DMA PCI Error */
#define	CT7_REASSY_ERR	0x11	/* DMA reassembly error */
#define	CT7_DATA_UNDER	0x15	/* (FC only) Data Underrun */
#define	CT7_PORTUNAVAIL	0x28	/* port not available */
#define	CT7_LOGOUT	0x29	/* port logout */
#define	CT7_PORTCHANGED	0x2A	/* port changed */
#define	CT7_SRR		0x45	/* SRR Received */

/*
 * Other 24XX related target IOCBs
 */

/*
 * ABTS Received
 */
typedef struct {
	isphdr_t	abts_header;
	uint8_t		abts_reserved0[6];
	uint16_t	abts_nphdl;
	uint16_t	abts_reserved1;
	uint16_t	abts_sof;
	uint32_t	abts_rxid_abts;
	uint16_t	abts_did_lo;
	uint8_t		abts_did_hi;
	uint8_t		abts_r_ctl;
	uint16_t	abts_sid_lo;
	uint8_t		abts_sid_hi;
	uint8_t		abts_cs_ctl;
	uint16_t	abts_fs_ctl;
	uint8_t		abts_f_ctl;
	uint8_t		abts_type;
	uint16_t	abts_seq_cnt;
	uint8_t		abts_df_ctl;
	uint8_t		abts_seq_id;
	uint16_t	abts_rx_id;
	uint16_t	abts_ox_id;
	uint32_t	abts_param;
	uint8_t		abts_reserved2[16];
	uint32_t	abts_rxid_task;
} abts_t;

typedef struct {
	isphdr_t	abts_rsp_header;
	uint32_t	abts_rsp_handle;
	uint16_t	abts_rsp_status;
	uint16_t	abts_rsp_nphdl;
	uint16_t	abts_rsp_ctl_flags;
	uint16_t	abts_rsp_sof;
	uint32_t	abts_rsp_rxid_abts;
	uint16_t	abts_rsp_did_lo;
	uint8_t		abts_rsp_did_hi;
	uint8_t		abts_rsp_r_ctl;
	uint16_t	abts_rsp_sid_lo;
	uint8_t		abts_rsp_sid_hi;
	uint8_t		abts_rsp_cs_ctl;
	uint16_t	abts_rsp_f_ctl_lo;
	uint8_t		abts_rsp_f_ctl_hi;
	uint8_t		abts_rsp_type;
	uint16_t	abts_rsp_seq_cnt;
	uint8_t		abts_rsp_df_ctl;
	uint8_t		abts_rsp_seq_id;
	uint16_t	abts_rsp_rx_id;
	uint16_t	abts_rsp_ox_id;
	uint32_t	abts_rsp_param;
	union {
		struct {
			uint16_t reserved;
			uint8_t	last_seq_id;
			uint8_t seq_id_valid;
			uint16_t aborted_rx_id;
			uint16_t aborted_ox_id;
			uint16_t high_seq_cnt;
			uint16_t low_seq_cnt;
			uint8_t reserved2[4];
		} ba_acc;
		struct {
			uint8_t vendor_unique;
			uint8_t	explanation;
			uint8_t reason;
			uint8_t reserved;
			uint8_t reserved2[12];
		} ba_rjt;
		struct {
			uint8_t reserved[8];
			uint32_t subcode1;
			uint32_t subcode2;
		} rsp;
		uint8_t reserved[16];
	} abts_rsp_payload;
	uint32_t	abts_rsp_rxid_task;
} abts_rsp_t;

/* terminate this ABTS exchange */
#define	ISP24XX_ABTS_RSP_TERMINATE	0x01

#define	ISP24XX_ABTS_RSP_COMPLETE	0x00
#define	ISP24XX_ABTS_RSP_RESET		0x04
#define	ISP24XX_ABTS_RSP_ABORTED	0x05
#define	ISP24XX_ABTS_RSP_TIMEOUT	0x06
#define	ISP24XX_ABTS_RSP_INVXID		0x08
#define	ISP24XX_ABTS_RSP_LOGOUT		0x29
#define	ISP24XX_ABTS_RSP_SUBCODE	0x31

/*
 * Debug macros
 */

#define	ISP_TDQE(isp, msg, idx, arg)	\
    if (isp->isp_dblev & ISP_LOGTDEBUG2) isp_print_qentry(isp, msg, idx, arg)

#ifndef	ISP_TOOLS
/*
 * The functions below are for the publicly available
 * target mode functions that are internal to the Qlogic driver.
 */

/*
 * This function handles new response queue entry appropriate for target mode.
 */
int isp_target_notify(ispsoftc_t *, void *, uint32_t *);

/*
 * This function externalizes the ability to acknowledge an Immediate Notify
 * request.
 */
void isp_notify_ack(ispsoftc_t *, void *);

/*
 * Enable/Disable/Modify a logical unit.
 * (softc, cmd, bus, tgt, lun, cmd_cnt, inotify_cnt, opaque)
 */
#define	DFLT_CMND_CNT	0xfe	/* unmonitored */
#define	DFLT_INOT_CNT	0xfe	/* unmonitored */
int isp_lun_cmd(ispsoftc_t *, int, int, int, int, int, int, uint32_t);

/*
 * General request queue 'put' routine for target mode entries.
 */
int isp_target_put_entry(ispsoftc_t *isp, void *);

/*
 * General routine to put back an ATIO entry-
 * used for replenishing f/w resource counts.
 * The argument is a pointer to a source ATIO
 * or ATIO2.
 */
int isp_target_put_atio(ispsoftc_t *, void *);

/*
 * General routine to send a final CTIO for a command- used mostly for
 * local responses.
 */
int isp_endcmd(ispsoftc_t *, void *, uint32_t, uint32_t);
#define	ECMD_SVALID	0x100

/*
 * Handle an asynchronous event
 *
 * Return nonzero if the interrupt that generated this event has been dismissed.
 */
int isp_target_async(ispsoftc_t *, int, int);
#endif
#endif	/* _ISP_TARGET_H */
OpenPOWER on IntegriCloud