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
|
/* $FreeBSD$ */
/*
* Soft Definitions for for Qlogic ISP SCSI adapters.
*
* Copyright (c) 1997, 1998, 1999, 2000 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE 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 THE 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.
*
*/
#ifndef _ISPVAR_H
#define _ISPVAR_H
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <dev/ic/ispmbox.h>
#ifdef ISP_TARGET_MODE
#include <dev/ic/isp_target.h>
#include <dev/ic/isp_tpublic.h>
#endif
#endif
#ifdef __FreeBSD__
#include <dev/isp/ispmbox.h>
#ifdef ISP_TARGET_MODE
#include <dev/isp/isp_target.h>
#include <dev/isp/isp_tpublic.h>
#endif
#endif
#ifdef __linux__
#include "ispmbox.h"
#ifdef ISP_TARGET_MODE
#include "isp_target.h"
#include "isp_tpublic.h"
#endif
#endif
#define ISP_CORE_VERSION_MAJOR 2
#define ISP_CORE_VERSION_MINOR 1
/*
* Vector for bus specific code to provide specific services.
*/
struct ispsoftc;
struct ispmdvec {
u_int16_t (*dv_rd_reg) (struct ispsoftc *, int);
void (*dv_wr_reg) (struct ispsoftc *, int, u_int16_t);
int (*dv_mbxdma) (struct ispsoftc *);
int (*dv_dmaset) (struct ispsoftc *,
XS_T *, ispreq_t *, u_int16_t *, u_int16_t);
void (*dv_dmaclr)
(struct ispsoftc *, XS_T *, u_int16_t);
void (*dv_reset0) (struct ispsoftc *);
void (*dv_reset1) (struct ispsoftc *);
void (*dv_dregs) (struct ispsoftc *, const char *);
const u_int16_t *dv_ispfw; /* ptr to f/w */
u_int16_t dv_conf1;
u_int16_t dv_clock; /* clock frequency */
};
/*
* Overall parameters
*/
#define MAX_TARGETS 16
#define MAX_FC_TARG 256
#define ISP_MAX_TARGETS(isp) (IS_FC(isp)? MAX_FC_TARG : MAX_TARGETS)
#define ISP_MAX_LUNS(isp) (isp)->isp_maxluns
/*
* Macros to access ISP registers through bus specific layers-
* mostly wrappers to vector through the mdvec structure.
*/
#define ISP_READ(isp, reg) \
(*(isp)->isp_mdvec->dv_rd_reg)((isp), (reg))
#define ISP_WRITE(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), (val))
#define ISP_MBOXDMASETUP(isp) \
(*(isp)->isp_mdvec->dv_mbxdma)((isp))
#define ISP_DMASETUP(isp, xs, req, iptrp, optr) \
(*(isp)->isp_mdvec->dv_dmaset)((isp), (xs), (req), (iptrp), (optr))
#define ISP_DMAFREE(isp, xs, hndl) \
if ((isp)->isp_mdvec->dv_dmaclr) \
(*(isp)->isp_mdvec->dv_dmaclr)((isp), (xs), (hndl))
#define ISP_RESET0(isp) \
if ((isp)->isp_mdvec->dv_reset0) (*(isp)->isp_mdvec->dv_reset0)((isp))
#define ISP_RESET1(isp) \
if ((isp)->isp_mdvec->dv_reset1) (*(isp)->isp_mdvec->dv_reset1)((isp))
#define ISP_DUMPREGS(isp, m) \
if ((isp)->isp_mdvec->dv_dregs) (*(isp)->isp_mdvec->dv_dregs)((isp),(m))
#define ISP_SETBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) | (val))
#define ISP_CLRBITS(isp, reg, val) \
(*(isp)->isp_mdvec->dv_wr_reg)((isp), (reg), ISP_READ((isp), (reg)) & ~(val))
/*
* The MEMORYBARRIER macro is defined per platform (to provide synchronization
* on Request and Response Queues, Scratch DMA areas, and Registers)
*
* Defined Memory Barrier Synchronization Types
*/
#define SYNC_REQUEST 0 /* request queue synchronization */
#define SYNC_RESULT 1 /* result queue synchronization */
#define SYNC_SFORDEV 2 /* scratch, sync for ISP */
#define SYNC_SFORCPU 3 /* scratch, sync for CPU */
#define SYNC_REG 4 /* for registers */
/*
* Request/Response Queue defines and macros.
* The maximum is defined per platform (and can be based on board type).
*/
/* This is the size of a queue entry (request and response) */
#define QENTRY_LEN 64
/* Both request and result queue length must be a power of two */
#define RQUEST_QUEUE_LEN(x) MAXISPREQUEST(x)
#define RESULT_QUEUE_LEN(x) \
(((MAXISPREQUEST(x) >> 2) < 64)? 64 : MAXISPREQUEST(x) >> 2)
#define ISP_QUEUE_ENTRY(q, idx) ((q) + ((idx) * QENTRY_LEN))
#define ISP_QUEUE_SIZE(n) ((n) * QENTRY_LEN)
#define ISP_NXT_QENTRY(idx, qlen) (((idx) + 1) & ((qlen)-1))
#define ISP_QFREE(in, out, qlen) \
((in == out)? (qlen - 1) : ((in > out)? \
((qlen - 1) - (in - out)) : (out - in - 1)))
#define ISP_QAVAIL(isp) \
ISP_QFREE(isp->isp_reqidx, isp->isp_reqodx, RQUEST_QUEUE_LEN(isp))
#define ISP_ADD_REQUEST(isp, iptr) \
MEMORYBARRIER(isp, SYNC_REQUEST, iptr, QENTRY_LEN); \
ISP_WRITE(isp, INMAILBOX4, iptr); \
isp->isp_reqidx = iptr
/*
* SCSI Specific Host Adapter Parameters- per bus, per target
*/
typedef struct {
u_int isp_gotdparms : 1,
isp_req_ack_active_neg : 1,
isp_data_line_active_neg: 1,
isp_cmd_dma_burst_enable: 1,
isp_data_dma_burst_enabl: 1,
isp_fifo_threshold : 3,
isp_ultramode : 1,
isp_diffmode : 1,
isp_lvdmode : 1,
isp_fast_mttr : 1, /* fast sram */
isp_initiator_id : 4,
isp_async_data_setup : 4;
u_int16_t isp_selection_timeout;
u_int16_t isp_max_queue_depth;
u_int8_t isp_tag_aging;
u_int8_t isp_bus_reset_delay;
u_int8_t isp_retry_count;
u_int8_t isp_retry_delay;
struct {
u_int dev_enable : 1, /* ignored */
: 1,
dev_update : 1,
dev_refresh : 1,
exc_throttle : 8,
cur_offset : 4,
sync_offset : 4;
u_int8_t cur_period; /* current sync period */
u_int8_t sync_period; /* goal sync period */
u_int16_t dev_flags; /* goal device flags */
u_int16_t cur_dflags; /* current device flags */
} isp_devparam[MAX_TARGETS];
} sdparam;
/*
* Device Flags
*/
#define DPARM_DISC 0x8000
#define DPARM_PARITY 0x4000
#define DPARM_WIDE 0x2000
#define DPARM_SYNC 0x1000
#define DPARM_TQING 0x0800
#define DPARM_ARQ 0x0400
#define DPARM_QFRZ 0x0200
#define DPARM_RENEG 0x0100
#define DPARM_NARROW 0x0080
#define DPARM_ASYNC 0x0040
#define DPARM_PPR 0x0020
#define DPARM_DEFAULT (0xFF00 & ~DPARM_QFRZ)
#define DPARM_SAFE_DFLT (DPARM_DEFAULT & ~(DPARM_WIDE|DPARM_SYNC|DPARM_TQING))
/* technically, not really correct, as they need to be rated based upon clock */
#define ISP_80M_SYNCPARMS 0x0c09
#define ISP_40M_SYNCPARMS 0x0c0a
#define ISP_20M_SYNCPARMS 0x0c0c
#define ISP_20M_SYNCPARMS_1040 0x080c
#define ISP_10M_SYNCPARMS 0x0c19
#define ISP_08M_SYNCPARMS 0x0c25
#define ISP_05M_SYNCPARMS 0x0c32
#define ISP_04M_SYNCPARMS 0x0c41
/*
* Fibre Channel Specifics
*/
#define FL_PORT_ID 0x7e /* FL_Port Special ID */
#define FC_PORT_ID 0x7f /* Fabric Controller Special ID */
#define FC_SNS_ID 0x80 /* SNS Server Special ID */
typedef struct {
u_int32_t isp_fwoptions : 16,
: 2,
isp_iid_set : 1,
loop_seen_once : 1,
isp_loopstate : 4, /* Current Loop State */
isp_fwstate : 3, /* ISP F/W state */
isp_gotdparms : 1,
isp_topo : 3,
isp_onfabric : 1;
u_int8_t isp_iid; /* 'initiator' id */
u_int8_t isp_loopid; /* hard loop id */
u_int8_t isp_alpa; /* ALPA */
u_int32_t isp_portid;
volatile u_int16_t isp_lipseq; /* LIP sequence # */
u_int16_t isp_xxxxxx;
u_int8_t isp_execthrottle;
u_int8_t isp_retry_delay;
u_int8_t isp_retry_count;
u_int8_t isp_reserved;
u_int16_t isp_maxalloc;
u_int16_t isp_maxfrmlen;
u_int64_t isp_nodewwn;
u_int64_t isp_portwwn;
/*
* Port Data Base. This is indexed by 'target', which is invariate.
* However, elements within can move around due to loop changes,
* so the actual loop ID passed to the F/W is in this structure.
* The first time the loop is seen up, loopid will match the index
* (except for fabric nodes which are above mapped above FC_SNS_ID
* and are completely virtual), but subsequent LIPs can cause things
* to move around.
*/
struct lportdb {
u_int
loopid : 8,
: 1,
force_logout : 1,
was_fabric_dev : 1,
fabric_dev : 1,
loggedin : 1,
roles : 2,
valid : 1;
u_int32_t portid;
u_int64_t node_wwn;
u_int64_t port_wwn;
} portdb[MAX_FC_TARG], tport[FC_PORT_ID];
/*
* Scratch DMA mapped in area to fetch Port Database stuff, etc.
*/
caddr_t isp_scratch;
u_int32_t isp_scdma;
} fcparam;
#define FW_CONFIG_WAIT 0
#define FW_WAIT_AL_PA 1
#define FW_WAIT_LOGIN 2
#define FW_READY 3
#define FW_LOSS_OF_SYNC 4
#define FW_ERROR 5
#define FW_REINIT 6
#define FW_NON_PART 7
#define LOOP_NIL 0
#define LOOP_LIP_RCVD 1
#define LOOP_PDB_RCVD 2
#define LOOP_SCANNING_FABRIC 3
#define LOOP_FSCAN_DONE 4
#define LOOP_SCANNING_LOOP 5
#define LOOP_LSCAN_DONE 6
#define LOOP_SYNCING_PDB 7
#define LOOP_READY 8
#define TOPO_NL_PORT 0
#define TOPO_FL_PORT 1
#define TOPO_N_PORT 2
#define TOPO_F_PORT 3
#define TOPO_PTP_STUB 4
/*
* Soft Structure per host adapter
*/
typedef struct ispsoftc {
/*
* Platform (OS) specific data
*/
struct isposinfo isp_osinfo;
/*
* Pointer to bus specific functions and data
*/
struct ispmdvec * isp_mdvec;
/*
* (Mostly) nonvolatile state. Board specific parameters
* may contain some volatile state (e.g., current loop state).
*/
void * isp_param; /* type specific */
u_int16_t isp_fwrev[3]; /* Loaded F/W revision */
u_int16_t isp_romfw_rev[3]; /* PROM F/W revision */
u_int16_t isp_maxcmds; /* max possible I/O cmds */
u_int8_t isp_type; /* HBA Chip Type */
u_int8_t isp_revision; /* HBA Chip H/W Revision */
u_int32_t isp_maxluns; /* maximum luns supported */
u_int32_t isp_clock : 8, /* input clock */
: 6,
isp_role : 2,
: 1,
isp_touched : 1, /* board ever seen? */
isp_bustype : 1, /* SBus or PCI */
isp_loaded_fw : 1, /* loaded firmware */
isp_dblev : 12; /* debug log mask */
u_int32_t isp_confopts; /* config options */
/*
* Instrumentation
*/
u_int64_t isp_intcnt; /* total int count */
u_int64_t isp_intbogus; /* spurious int count */
/*
* Volatile state
*/
volatile u_int32_t
isp_mboxbsy : 8, /* mailbox command active */
: 1,
isp_state : 3,
isp_sendmarker : 2, /* send a marker entry */
isp_update : 2, /* update parameters */
isp_nactive : 16; /* how many commands active */
volatile u_int16_t isp_reqodx; /* index of last ISP pickup */
volatile u_int16_t isp_reqidx; /* index of next request */
volatile u_int16_t isp_residx; /* index of next result */
volatile u_int16_t isp_lasthdls; /* last handle seed */
volatile u_int16_t isp_mboxtmp[MAX_MAILBOX];
volatile u_int16_t isp_lastmbxcmd; /* last mbox command sent */
/*
* Active commands are stored here, indexed by handle functions.
*/
XS_T **isp_xflist;
/*
* request/result queue pointers and dma handles for them.
*/
caddr_t isp_rquest;
caddr_t isp_result;
u_int32_t isp_rquest_dma;
u_int32_t isp_result_dma;
} ispsoftc_t;
#define SDPARAM(isp) ((sdparam *) (isp)->isp_param)
#define FCPARAM(isp) ((fcparam *) (isp)->isp_param)
/*
* ISP Driver Run States
*/
#define ISP_NILSTATE 0
#define ISP_RESETSTATE 1
#define ISP_INITSTATE 2
#define ISP_RUNSTATE 3
/*
* ISP Configuration Options
*/
#define ISP_CFG_NORELOAD 0x80 /* don't download f/w */
#define ISP_CFG_NONVRAM 0x40 /* ignore NVRAM */
#define ISP_CFG_FULL_DUPLEX 0x01 /* Full Duplex (Fibre Channel only) */
#define ISP_CFG_OWNWWN 0x02 /* override NVRAM wwn */
#define ISP_CFG_PORT_PREF 0x0C /* Mask for Port Prefs (2200 only) */
#define ISP_CFG_LPORT 0x00 /* prefer {N/F}L-Port connection */
#define ISP_CFG_NPORT 0x04 /* prefer {N/F}-Port connection */
#define ISP_CFG_NPORT_ONLY 0x08 /* insist on {N/F}-Port connection */
#define ISP_CFG_LPORT_ONLY 0x0C /* insist on {N/F}L-Port connection */
/*
* Prior to calling isp_reset for the first time, the outer layer
* should set isp_role to one of NONE, INITIATOR, TARGET, BOTH.
*
* If you set ISP_ROLE_NONE, the cards will be reset, new firmware loaded,
* NVRAM read, and defaults set, but any further initialization (e.g.
* INITIALIZE CONTROL BLOCK commands for 2X00 cards) won't be done.
*
* If INITIATOR MODE isn't set, attempts to run commands will be stopped
* at isp_start and completed with the moral equivalent of SELECTION TIMEOUT.
*
* If TARGET MODE is set, it doesn't mean that the rest of target mode support
* needs to be enabled, or will even work. What happens with the 2X00 cards
* here is that if you have enabled it with TARGET MODE as part of the ICB
* options, but you haven't given the f/w any ram resources for ATIOs or
* Immediate Notifies, the f/w just handles what it can and you never see
* anything. Basically, it sends a single byte of data (the first byte,
* which you can set as part of the INITIALIZE CONTROL BLOCK command) for
* INQUIRY, and sends back QUEUE FULL status for any other command.
*
*/
#define ISP_ROLE_NONE 0x0
#define ISP_ROLE_INITIATOR 0x1
#define ISP_ROLE_TARGET 0x2
#define ISP_ROLE_BOTH (ISP_ROLE_TARGET|ISP_ROLE_INITIATOR)
#define ISP_ROLE_EITHER ISP_ROLE_BOTH
#ifndef ISP_DEFAULT_ROLES
#define ISP_DEFAULT_ROLES ISP_ROLE_INITIATOR
#endif
/*
* Firmware related defines
*/
#define ISP_CODE_ORG 0x1000 /* default f/w code start */
#define ISP_FW_REV(maj, min, mic) ((maj << 24) | (min << 16) | mic)
#define ISP_FW_REVX(xp) ((xp[0]<<24) | (xp[1] << 16) | xp[2])
/*
* Bus (implementation) types
*/
#define ISP_BT_PCI 0 /* PCI Implementations */
#define ISP_BT_SBUS 1 /* SBus Implementations */
/*
* Chip Types
*/
#define ISP_HA_SCSI 0xf
#define ISP_HA_SCSI_UNKNOWN 0x1
#define ISP_HA_SCSI_1020 0x2
#define ISP_HA_SCSI_1020A 0x3
#define ISP_HA_SCSI_1040 0x4
#define ISP_HA_SCSI_1040A 0x5
#define ISP_HA_SCSI_1040B 0x6
#define ISP_HA_SCSI_1040C 0x7
#define ISP_HA_SCSI_1240 0x8
#define ISP_HA_SCSI_1080 0x9
#define ISP_HA_SCSI_1280 0xa
#define ISP_HA_SCSI_12160 0xb
#define ISP_HA_FC 0xf0
#define ISP_HA_FC_2100 0x10
#define ISP_HA_FC_2200 0x20
#define ISP_HA_FC_2300 0x30
#define IS_SCSI(isp) (isp->isp_type & ISP_HA_SCSI)
#define IS_1240(isp) (isp->isp_type == ISP_HA_SCSI_1240)
#define IS_1080(isp) (isp->isp_type == ISP_HA_SCSI_1080)
#define IS_1280(isp) (isp->isp_type == ISP_HA_SCSI_1280)
#define IS_12160(isp) (isp->isp_type == ISP_HA_SCSI_12160)
#define IS_12X0(isp) (IS_1240(isp) || IS_1280(isp))
#define IS_DUALBUS(isp) (IS_12X0(isp) || IS_12160(isp))
#define IS_ULTRA2(isp) (IS_1080(isp) || IS_1280(isp) || IS_12160(isp))
#define IS_ULTRA3(isp) (IS_12160(isp))
#define IS_FC(isp) ((isp)->isp_type & ISP_HA_FC)
#define IS_2100(isp) ((isp)->isp_type == ISP_HA_FC_2100)
#define IS_2200(isp) ((isp)->isp_type == ISP_HA_FC_2200)
#define IS_2300(isp) ((isp)->isp_type == ISP_HA_FC_2300)
/* 2300 Support isn't ready yet */
#define ISP_DISABLE_2300_SUPPORT 1
/*
* DMA cookie macros
*/
#define DMA_MSW(x) (((x) >> 16) & 0xffff)
#define DMA_LSW(x) (((x) & 0xffff))
/*
* Core System Function Prototypes
*/
/*
* Reset Hardware. Totally. Assumes that you'll follow this with
* a call to isp_init.
*/
void isp_reset(struct ispsoftc *);
/*
* Initialize Hardware to known state
*/
void isp_init(struct ispsoftc *);
/*
* Reset the ISP and call completion for any orphaned commands.
*/
void isp_reinit(struct ispsoftc *);
/*
* Interrupt Service Routine
*/
int isp_intr(void *);
/*
* Command Entry Point- Platform Dependent layers call into this
*/
int isp_start(XS_T *);
/* these values are what isp_start returns */
#define CMD_COMPLETE 101 /* command completed */
#define CMD_EAGAIN 102 /* busy- maybe retry later */
#define CMD_QUEUED 103 /* command has been queued for execution */
#define CMD_RQLATER 104 /* requeue this command later */
/*
* Command Completion Point- Core layers call out from this with completed cmds
*/
void isp_done(XS_T *);
/*
* Platform Dependent to External to Internal Control Function
*
* Assumes locks are held on entry. You should note that with many of
* these commands and locks may be released while this is occurring.
*
* A few notes about some of these functions:
*
* ISPCTL_FCLINK_TEST tests to make sure we have good fibre channel link.
* The argument is a pointer to an integer which is the time, in microseconds,
* we should wait to see whether we have good link. This test, if successful,
* lets us know our connection topology and our Loop ID/AL_PA and so on.
* You can't get anywhere without this.
*
* ISPCTL_SCAN_FABRIC queries the name server (if we're on a fabric) for
* all entities using the FC Generic Services subcommand GET ALL NEXT.
* For each found entity, an ISPASYNC_FABRICDEV event is generated (see
* below).
*
* ISPCTL_SCAN_LOOP does a local loop scan. This is only done if the connection
* topology is NL or FL port (private or public loop). Since the Qlogic f/w
* 'automatically' manages local loop connections, this function essentially
* notes the arrival, departure, and possible shuffling around of local loop
* entities. Thus for each arrival and departure this generates an isp_async
* event of ISPASYNC_PROMENADE (see below).
*
* ISPCTL_PDB_SYNC is somewhat misnamed. It actually is the final step, in
* order, of ISPCTL_FCLINK_TEST, ISPCTL_SCAN_FABRIC, and ISPCTL_SCAN_LOOP.
* The main purpose of ISPCTL_PDB_SYNC is to complete management of logging
* and logging out of fabric devices (if one is on a fabric) and then marking
* the 'loop state' as being ready to now be used for sending commands to
* devices. Originally fabric name server and local loop scanning were
* part of this function. It's now been seperated to allow for finer control.
*/
typedef enum {
ISPCTL_RESET_BUS, /* Reset Bus */
ISPCTL_RESET_DEV, /* Reset Device */
ISPCTL_ABORT_CMD, /* Abort Command */
ISPCTL_UPDATE_PARAMS, /* Update Operating Parameters (SCSI) */
ISPCTL_FCLINK_TEST, /* Test FC Link Status */
ISPCTL_SCAN_FABRIC, /* (Re)scan Fabric Name Server */
ISPCTL_SCAN_LOOP, /* (Re)scan Local Loop */
ISPCTL_PDB_SYNC, /* Synchronize Port Database */
ISPCTL_SEND_LIP, /* Send a LIP */
ISPCTL_GET_POSMAP, /* Get FC-AL position map */
ISPCTL_RUN_MBOXCMD, /* run a mailbox command */
ISPCTL_TOGGLE_TMODE /* toggle target mode */
} ispctl_t;
int isp_control(struct ispsoftc *, ispctl_t, void *);
/*
* Platform Dependent to Internal to External Control Function
* (each platform must provide such a function)
*
* Assumes locks are held.
*
* A few notes about some of these functions:
*
* ISPASYNC_CHANGE_NOTIFY notifies the outer layer that a change has
* occurred that invalidates the list of fabric devices known and/or
* the list of known loop devices. The argument passed is a pointer
* whose values are defined below (local loop change, name server
* change, other). 'Other' may simply be a LIP, or a change in
* connection topology.
*
* ISPASYNC_FABRIC_DEV announces the next element in a list of
* fabric device names we're getting out of the name server. The
* argument points to a GET ALL NEXT response structure. The list
* is known to terminate with an entry that refers to ourselves.
* One of the main purposes of this function is to allow outer
* layers, which are OS dependent, to set policy as to which fabric
* devices might actually be logged into (and made visible) later
* at ISPCTL_PDB_SYNC time. Since there's a finite number of fabric
* devices that we can log into (256 less 3 'reserved' for F-port
* topologies), and fabrics can grow up to 8 million or so entries
* (24 bits of Port Address, less a wad of reserved spaces), clearly
* we had better let the OS determine login policy.
*
* ISPASYNC_PROMENADE has an argument that is a pointer to an integer which
* is an index into the portdb in the softc ('target'). Whether that entrie's
* valid tag is set or not says whether something has arrived or departed.
* The name refers to a favorite pastime of many city dwellers- watching
* people come and go, talking of Michaelangelo, and so on..
*
* ISPASYNC_UNHANDLED_RESPONSE gives outer layers a chance to parse a
* response queue entry not otherwise handled. The outer layer should
* return non-zero if it handled it. The 'arg' points to a (possibly only
* partially) massaged response queue entry (see the platform's
* ISP_UNSWIZZLE_RESPONSE macro).
*/
typedef enum {
ISPASYNC_NEW_TGT_PARAMS, /* New Target Parameters Negotiated */
ISPASYNC_BUS_RESET, /* Bus Was Reset */
ISPASYNC_LOOP_DOWN, /* FC Loop Down */
ISPASYNC_LOOP_UP, /* FC Loop Up */
ISPASYNC_LIP, /* LIP Received */
ISPASYNC_LOOP_RESET, /* Loop Reset Received */
ISPASYNC_CHANGE_NOTIFY, /* FC Change Notification */
ISPASYNC_FABRIC_DEV, /* FC Fabric Device Arrival */
ISPASYNC_PROMENADE, /* FC Objects coming && going */
ISPASYNC_TARGET_MESSAGE, /* target message */
ISPASYNC_TARGET_EVENT, /* target asynchronous event */
ISPASYNC_TARGET_ACTION, /* other target command action */
ISPASYNC_CONF_CHANGE, /* Platform Configuration Change */
ISPASYNC_UNHANDLED_RESPONSE /* Unhandled Response Entry */
} ispasync_t;
int isp_async(struct ispsoftc *, ispasync_t, void *);
#define ISPASYNC_CHANGE_PDB ((void *) 0)
#define ISPASYNC_CHANGE_SNS ((void *) 1)
#define ISPASYNC_CHANGE_OTHER ((void *) 2)
/*
* Platform Dependent Error and Debug Printout
*/
#ifdef __GNUC__
void isp_prt(struct ispsoftc *, int level, const char *, ...)
__attribute__((__format__(__printf__,3,4)));
#else
void isp_prt(struct ispsoftc *, int level, const char *, ...);
#endif
#define ISP_LOGALL 0x0 /* log always */
#define ISP_LOGCONFIG 0x1 /* log configuration messages */
#define ISP_LOGINFO 0x2 /* log informational messages */
#define ISP_LOGWARN 0x4 /* log warning messages */
#define ISP_LOGERR 0x8 /* log error messages */
#define ISP_LOGDEBUG0 0x10 /* log simple debug messages */
#define ISP_LOGDEBUG1 0x20 /* log intermediate debug messages */
#define ISP_LOGDEBUG2 0x40 /* log most debug messages */
#define ISP_LOGDEBUG3 0x100 /* log high frequency debug messages */
#define ISP_LOGTDEBUG0 0x200 /* log simple debug messages (target mode) */
#define ISP_LOGTDEBUG1 0x400 /* log intermediate debug messages (target) */
#define ISP_LOGTDEBUG2 0x800 /* log all debug messages (target) */
/*
* Each Platform provides it's own isposinfo substructure of the ispsoftc
* defined above.
*
* Each platform must also provide the following macros/defines:
*
*
* INLINE - platform specific define for 'inline' functions
*
* ISP2100_SCRLEN - length for the Fibre Channel scratch DMA area
*
* MEMZERO(dst, src) platform zeroing function
* MEMCPY(dst, src, count) platform copying function
* SNPRINTF(buf, bufsize, fmt, ...) snprintf
* STRNCAT(dstbuf, size, srcbuf) strncat
* USEC_DELAY(usecs) microsecond spindelay function
* USEC_SLEEP(isp, usecs) microsecond sleep function
*
* NANOTIME_T nanosecond time type
*
* GET_NANOTIME(NANOTIME_T *) get current nanotime.
*
* GET_NANOSEC(NANOTIME_T *) get u_int64_t from NANOTIME_T
*
* NANOTIME_SUB(NANOTIME_T *, NANOTIME_T *)
* subtract two NANOTIME_T values
*
*
* MAXISPREQUEST(struct ispsoftc *) maximum request queue size
* for this particular board type
*
* MEMORYBARRIER(struct ispsoftc *, barrier_type, offset, size)
*
* Function/Macro the provides memory synchronization on
* various objects so that the ISP's and the system's view
* of the same object is consistent.
*
* MBOX_ACQUIRE(struct ispsoftc *) acquire lock on mailbox regs
* MBOX_WAIT_COMPLETE(struct ispsoftc *) wait for mailbox cmd to be done
* MBOX_NOTIFY_COMPLETE(struct ispsoftc *) notification of mbox cmd donee
* MBOX_RELEASE(struct ispsoftc *) release lock on mailbox regs
*
*
* SCSI_GOOD SCSI 'Good' Status
* SCSI_CHECK SCSI 'Check Condition' Status
* SCSI_BUSY SCSI 'Busy' Status
* SCSI_QFULL SCSI 'Queue Full' Status
*
* XS_T Platform SCSI transaction type (i.e., command for HBA)
* XS_ISP(xs) gets an instance out of an XS_T
* XS_CHANNEL(xs) gets the channel (bus # for DUALBUS cards) ""
* XS_TGT(xs) gets the target ""
* XS_LUN(xs) gets the lun ""
* XS_CDBP(xs) gets a pointer to the scsi CDB ""
* XS_CDBLEN(xs) gets the CDB's length ""
* XS_XFRLEN(xs) gets the associated data transfer length ""
* XS_TIME(xs) gets the time (in milliseconds) for this command
* XS_RESID(xs) gets the current residual count
* XS_STSP(xs) gets a pointer to the SCSI status byte ""
* XS_SNSP(xs) gets a pointer to the associate sense data
* XS_SNSLEN(xs) gets the length of sense data storage
* XS_SNSKEY(xs) dereferences XS_SNSP to get the current stored Sense Key
* XS_TAG_P(xs) predicate of whether this command should be tagged
* XS_TAG_TYPE(xs) which type of tag to use
* XS_SETERR(xs) set error state
*
* HBA_NOERROR command has no erros
* HBA_BOTCH hba botched something
* HBA_CMDTIMEOUT command timed out
* HBA_SELTIMEOUT selection timed out (also port logouts for FC)
* HBA_TGTBSY target returned a BUSY status
* HBA_BUSRESET bus reset destroyed command
* HBA_ABORTED command was aborted (by request)
* HBA_DATAOVR a data overrun was detected
* HBA_ARQFAIL Automatic Request Sense failed
*
* XS_ERR(xs) return current error state
* XS_NOERR(xs) there is no error currently set
* XS_INITERR(xs) initialize error state
*
* XS_SAVE_SENSE(xs, sp) save sense data
*
* XS_SET_STATE_STAT(isp, sp, xs) platform dependent interpreter of
* response queue entry status bits
*
*
* DEFAULT_IID(struct ispsoftc *) Default SCSI initiator ID
* DEFAULT_LOOPID(struct ispsoftc *) Default FC Loop ID
* DEFAULT_NODEWWN(struct ispsoftc *) Default Node WWN
* DEFAULT_PORTWWN(struct ispsoftc *) Default Port WWN
* These establish reasonable defaults for each platform.
* These must be available independent of card NVRAM and are
* to be used should NVRAM not be readable.
*
* ISP_NODEWWN(struct ispsoftc *) FC Node WWN to use
* ISP_PORTWWN(struct ispsoftc *) FC Port WWN to use
*
* These are to be used after NVRAM is read. The tags
* in fcparam.isp_{node,port}wwn reflect the values
* read from NVRAM (possibly corrected for card botches).
* Each platform can take that information and override
* it or ignore and return the Node and Port WWNs to be
* used when sending the Qlogic f/w the Initialization Control
* Block.
*
* (XXX these do endian specific transformations- in transition XXX)
* ISP_SWIZZLE_ICB
* ISP_UNSWIZZLE_AND_COPY_PDBP
* ISP_SWIZZLE_CONTINUATION
* ISP_SWIZZLE_REQUEST
* ISP_UNSWIZZLE_RESPONSE
* ISP_SWIZZLE_SNS_REQ
* ISP_UNSWIZZLE_SNS_RSP
* ISP_SWIZZLE_NVRAM_WORD
*/
#endif /* _ISPVAR_H */
|