summaryrefslogtreecommitdiff
path: root/drivers/scsi/megaraid/mbox_defs.h
blob: e01c6f7c2caceae39dac634ee425bb794fdfdad4 (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
/*
 *
 *			Linux MegaRAID Unified device driver
 *
 * Copyright (c) 2003-2004  LSI Logic Corporation.
 *
 *	   This program is free software; you can redistribute it and/or
 *	   modify it under the terms of the GNU General Public License
 *	   as published by the Free Software Foundation; either version
 *	   2 of the License, or (at your option) any later version.
 *
 * FILE		: mbox_defs.h
 *
 */
#ifndef _MRAID_MBOX_DEFS_H_
#define _MRAID_MBOX_DEFS_H_

#include <linux/types.h>

/*
 * Commands and states for mailbox based controllers
 */

#define MBOXCMD_LREAD		0x01
#define MBOXCMD_LWRITE		0x02
#define MBOXCMD_PASSTHRU	0x03
#define MBOXCMD_ADPEXTINQ	0x04
#define MBOXCMD_ADAPTERINQ	0x05
#define MBOXCMD_LREAD64		0xA7
#define MBOXCMD_LWRITE64	0xA8
#define MBOXCMD_PASSTHRU64	0xC3
#define MBOXCMD_EXTPTHRU	0xE3

#define MAIN_MISC_OPCODE	0xA4
#define GET_MAX_SG_SUPPORT	0x01
#define SUPPORT_EXT_CDB		0x16

#define FC_NEW_CONFIG		0xA1
#define NC_SUBOP_PRODUCT_INFO	0x0E
#define NC_SUBOP_ENQUIRY3	0x0F
#define ENQ3_GET_SOLICITED_FULL	0x02
#define OP_DCMD_READ_CONFIG	0x04
#define NEW_READ_CONFIG_8LD	0x67
#define READ_CONFIG_8LD		0x07
#define FLUSH_ADAPTER		0x0A
#define FLUSH_SYSTEM		0xFE

/*
 * Command for random deletion of logical drives
 */
#define	FC_DEL_LOGDRV		0xA4
#define	OP_SUP_DEL_LOGDRV	0x2A
#define OP_GET_LDID_MAP		0x18
#define OP_DEL_LOGDRV		0x1C

/*
 * BIOS commands
 */
#define IS_BIOS_ENABLED		0x62
#define GET_BIOS		0x01
#define CHNL_CLASS		0xA9
#define GET_CHNL_CLASS		0x00
#define SET_CHNL_CLASS		0x01
#define CH_RAID			0x01
#define CH_SCSI			0x00
#define BIOS_PVT_DATA		0x40
#define GET_BIOS_PVT_DATA	0x00


/*
 * Commands to support clustering
 */
#define GET_TARGET_ID		0x7D
#define CLUSTER_OP		0x70
#define GET_CLUSTER_MODE	0x02
#define CLUSTER_CMD		0x6E
#define RESERVE_LD		0x01
#define RELEASE_LD		0x02
#define RESET_RESERVATIONS	0x03
#define RESERVATION_STATUS	0x04
#define RESERVE_PD		0x05
#define RELEASE_PD		0x06


/*
 * Module battery status
 */
#define BATTERY_MODULE_MISSING		0x01
#define BATTERY_LOW_VOLTAGE		0x02
#define BATTERY_TEMP_HIGH		0x04
#define BATTERY_PACK_MISSING		0x08
#define BATTERY_CHARGE_MASK		0x30
#define BATTERY_CHARGE_DONE		0x00
#define BATTERY_CHARGE_INPROG		0x10
#define BATTERY_CHARGE_FAIL		0x20
#define BATTERY_CYCLES_EXCEEDED		0x40

/*
 * Physical drive states.
 */
#define PDRV_UNCNF	0
#define PDRV_ONLINE	3
#define PDRV_FAILED	4
#define PDRV_RBLD	5
#define PDRV_HOTSPARE	6


/*
 * Raid logical drive states.
 */
#define RDRV_OFFLINE	0
#define RDRV_DEGRADED	1
#define RDRV_OPTIMAL	2
#define RDRV_DELETED	3

/*
 * Read, write and cache policies
 */
#define NO_READ_AHEAD		0
#define READ_AHEAD		1
#define ADAP_READ_AHEAD		2
#define WRMODE_WRITE_THRU	0
#define WRMODE_WRITE_BACK	1
#define CACHED_IO		0
#define DIRECT_IO		1

#define MAX_LOGICAL_DRIVES_8LD		8
#define MAX_LOGICAL_DRIVES_40LD		40
#define FC_MAX_PHYSICAL_DEVICES		256
#define MAX_MBOX_CHANNELS		5
#define MAX_MBOX_TARGET			15
#define MBOX_MAX_PHYSICAL_DRIVES	MAX_MBOX_CHANNELS*MAX_MBOX_TARGET
#define MAX_ROW_SIZE_40LD		32
#define MAX_ROW_SIZE_8LD		8
#define SPAN_DEPTH_8_SPANS		8
#define SPAN_DEPTH_4_SPANS		4
#define MAX_REQ_SENSE_LEN		0x20



/**
 * struct mbox_t - Driver and f/w handshake structure.
 * @cmd		: firmware command
 * @cmdid	: command id
 * @numsectors	: number of sectors to be transferred
 * @lba		: Logical Block Address on LD
 * @xferaddr	: DMA address for data transfer
 * @logdrv	: logical drive number
 * @numsge	: number of scatter gather elements in sg list
 * @resvd	: reserved
 * @busy	: f/w busy, must wait to issue more commands.
 * @numstatus	: number of commands completed.
 * @status	: status of the commands completed
 * @completed	: array of completed command ids.
 * @poll	: poll and ack sequence
 * @ack		: poll and ack sequence
 *
 * The central handshake structure between the driver and the firmware. This
 * structure must be allocated by the driver and aligned at 8-byte boundary.
 */
#define MBOX_MAX_FIRMWARE_STATUS	46
typedef struct {
	uint8_t		cmd;
	uint8_t		cmdid;
	uint16_t	numsectors;
	uint32_t	lba;
	uint32_t	xferaddr;
	uint8_t		logdrv;
	uint8_t		numsge;
	uint8_t		resvd;
	uint8_t		busy;
	uint8_t		numstatus;
	uint8_t		status;
	uint8_t		completed[MBOX_MAX_FIRMWARE_STATUS];
	uint8_t		poll;
	uint8_t		ack;
} __attribute__ ((packed)) mbox_t;


/**
 * mbox64_t - 64-bit extension for the mailbox
 * @segment_lo	: the low 32-bits of the address of the scatter-gather list
 * @segment_hi	: the upper 32-bits of the address of the scatter-gather list
 * @mbox	: 32-bit mailbox, whose xferadder field must be set to
 *		0xFFFFFFFF
 *
 * This is the extension of the 32-bit mailbox to be able to perform DMA
 * beyond 4GB address range.
 */
typedef struct {
	uint32_t	xferaddr_lo;
	uint32_t	xferaddr_hi;
	mbox_t		mbox32;
} __attribute__ ((packed)) mbox64_t;

/*
 * mailbox structure used for internal commands
 */
typedef struct {
	u8	cmd;
	u8	cmdid;
	u8	opcode;
	u8	subopcode;
	u32	lba;
	u32	xferaddr;
	u8	logdrv;
	u8	rsvd[3];
	u8	numstatus;
	u8	status;
} __attribute__ ((packed)) int_mbox_t;

/**
 * mraid_passthru_t - passthru structure to issue commands to physical devices
 * @timeout		: command timeout, 0=6sec, 1=60sec, 2=10min, 3=3hr
 * @ars			: set if ARS required after check condition
 * @islogical		: set if command meant for logical devices
 * @logdrv		: logical drive number if command for LD
 * @channel		: Channel on which physical device is located
 * @target		: SCSI target of the device
 * @queuetag		: unused
 * @queueaction		: unused
 * @cdb			: SCSI CDB
 * @cdblen		: length of the CDB
 * @reqsenselen		: amount of request sense data to be returned
 * @reqsensearea	: Sense information buffer
 * @numsge		: number of scatter-gather elements in the sg list
 * @scsistatus		: SCSI status of the command completed.
 * @dataxferaddr	: DMA data transfer address
 * @dataxferlen		: amount of the data to be transferred.
 */
typedef struct {
	uint8_t		timeout		:3;
	uint8_t		ars		:1;
	uint8_t		reserved	:3;
	uint8_t		islogical	:1;
	uint8_t		logdrv;
	uint8_t		channel;
	uint8_t		target;
	uint8_t		queuetag;
	uint8_t		queueaction;
	uint8_t		cdb[10];
	uint8_t		cdblen;
	uint8_t		reqsenselen;
	uint8_t		reqsensearea[MAX_REQ_SENSE_LEN];
	uint8_t		numsge;
	uint8_t		scsistatus;
	uint32_t	dataxferaddr;
	uint32_t	dataxferlen;
} __attribute__ ((packed)) mraid_passthru_t;

typedef struct {

	uint32_t		dataxferaddr_lo;
	uint32_t		dataxferaddr_hi;
	mraid_passthru_t	pthru32;

} __attribute__ ((packed)) mega_passthru64_t;

/**
 * mraid_epassthru_t - passthru structure to issue commands to physical devices
 * @timeout		: command timeout, 0=6sec, 1=60sec, 2=10min, 3=3hr
 * @ars			: set if ARS required after check condition
 * @rsvd1		: reserved field
 * @cd_rom		: (?)
 * @rsvd2		: reserved field
 * @islogical		: set if command meant for logical devices
 * @logdrv		: logical drive number if command for LD
 * @channel		: Channel on which physical device is located
 * @target		: SCSI target of the device
 * @queuetag		: unused
 * @queueaction		: unused
 * @cdblen		: length of the CDB
 * @rsvd3		: reserved field
 * @cdb			: SCSI CDB
 * @numsge		: number of scatter-gather elements in the sg list
 * @status		: SCSI status of the command completed.
 * @reqsenselen		: amount of request sense data to be returned
 * @reqsensearea	: Sense information buffer
 * @rsvd4		: reserved field
 * @dataxferaddr	: DMA data transfer address
 * @dataxferlen		: amount of the data to be transferred.
 */
typedef struct {
	uint8_t		timeout		:3;
	uint8_t		ars		:1;
	uint8_t		rsvd1		:1;
	uint8_t		cd_rom		:1;
	uint8_t		rsvd2		:1;
	uint8_t		islogical	:1;
	uint8_t		logdrv;
	uint8_t		channel;
	uint8_t		target;
	uint8_t		queuetag;
	uint8_t		queueaction;
	uint8_t		cdblen;
	uint8_t		rsvd3;
	uint8_t		cdb[16];
	uint8_t		numsge;
	uint8_t		status;
	uint8_t		reqsenselen;
	uint8_t		reqsensearea[MAX_REQ_SENSE_LEN];
	uint8_t		rsvd4;
	uint32_t	dataxferaddr;
	uint32_t	dataxferlen;
} __attribute__ ((packed)) mraid_epassthru_t;


/**
 * mraid_pinfo_t - product info, static information about the controller
 * @data_size		: current size in bytes (not including resvd)
 * @config_signature	: Current value is 0x00282008
 * @fw_version		: Firmware version
 * @bios_version	: version of the BIOS
 * @product_name	: Name given to the controller
 * @max_commands	: Maximum concurrent commands supported
 * @nchannels		: Number of SCSI Channels detected
 * @fc_loop_present	: Number of Fibre Loops detected
 * @mem_type		: EDO, FPM, SDRAM etc
 * @signature		:
 * @dram_size		: In terms of MB
 * @subsysid		: device PCI subsystem ID
 * @subsysvid		: device PCI subsystem vendor ID
 * @notify_counters	:
 * @pad1k		: 135 + 889 resvd = 1024 total size
 *
 * This structures holds the information about the controller which is not
 * expected to change dynamically.
 *
 * The current value of config signature is 0x00282008:
 * 0x28 = MAX_LOGICAL_DRIVES,
 * 0x20 = Number of stripes and
 * 0x08 = Number of spans
 */
typedef struct {
	uint32_t	data_size;
	uint32_t	config_signature;
	uint8_t		fw_version[16];
	uint8_t		bios_version[16];
	uint8_t		product_name[80];
	uint8_t		max_commands;
	uint8_t		nchannels;
	uint8_t		fc_loop_present;
	uint8_t		mem_type;
	uint32_t	signature;
	uint16_t	dram_size;
	uint16_t	subsysid;
	uint16_t	subsysvid;
	uint8_t		notify_counters;
	uint8_t		pad1k[889];
} __attribute__ ((packed)) mraid_pinfo_t;


/**
 * mraid_notify_t - the notification structure
 * @global_counter		: Any change increments this counter
 * @param_counter		: Indicates any params changed
 * @param_id			: Param modified - defined below
 * @param_val			: New val of last param modified
 * @write_config_counter	: write config occurred
 * @write_config_rsvd		:
 * @ldrv_op_counter		: Indicates ldrv op started/completed
 * @ldrv_opid			: ldrv num
 * @ldrv_opcmd			: ldrv operation - defined below
 * @ldrv_opstatus		: status of the operation
 * @ldrv_state_counter		: Indicates change of ldrv state
 * @ldrv_state_id		: ldrv num
 * @ldrv_state_new		: New state
 * @ldrv_state_old		: old state
 * @pdrv_state_counter		: Indicates change of ldrv state
 * @pdrv_state_id		: pdrv id
 * @pdrv_state_new		: New state
 * @pdrv_state_old		: old state
 * @pdrv_fmt_counter		: Indicates pdrv format started/over
 * @pdrv_fmt_id			: pdrv id
 * @pdrv_fmt_val		: format started/over
 * @pdrv_fmt_rsvd		:
 * @targ_xfer_counter		: Indicates SCSI-2 Xfer rate change
 * @targ_xfer_id		: pdrv Id
 * @targ_xfer_val		: new Xfer params of last pdrv
 * @targ_xfer_rsvd		:
 * @fcloop_id_chg_counter	: Indicates loopid changed
 * @fcloopid_pdrvid		: pdrv id
 * @fcloop_id0			: loopid on fc loop 0
 * @fcloop_id1			: loopid on fc loop 1
 * @fcloop_state_counter	: Indicates loop state changed
 * @fcloop_state0		: state of fc loop 0
 * @fcloop_state1		: state of fc loop 1
 * @fcloop_state_rsvd		:
 */
typedef struct {
	uint32_t	global_counter;
	uint8_t		param_counter;
	uint8_t		param_id;
	uint16_t	param_val;
	uint8_t		write_config_counter;
	uint8_t		write_config_rsvd[3];
	uint8_t		ldrv_op_counter;
	uint8_t		ldrv_opid;
	uint8_t		ldrv_opcmd;
	uint8_t		ldrv_opstatus;
	uint8_t		ldrv_state_counter;
	uint8_t		ldrv_state_id;
	uint8_t		ldrv_state_new;
	uint8_t		ldrv_state_old;
	uint8_t		pdrv_state_counter;
	uint8_t		pdrv_state_id;
	uint8_t		pdrv_state_new;
	uint8_t		pdrv_state_old;
	uint8_t		pdrv_fmt_counter;
	uint8_t		pdrv_fmt_id;
	uint8_t		pdrv_fmt_val;
	uint8_t		pdrv_fmt_rsvd;
	uint8_t		targ_xfer_counter;
	uint8_t		targ_xfer_id;
	uint8_t		targ_xfer_val;
	uint8_t		targ_xfer_rsvd;
	uint8_t		fcloop_id_chg_counter;
	uint8_t		fcloopid_pdrvid;
	uint8_t		fcloop_id0;
	uint8_t		fcloop_id1;
	uint8_t		fcloop_state_counter;
	uint8_t		fcloop_state0;
	uint8_t		fcloop_state1;
	uint8_t		fcloop_state_rsvd;
} __attribute__ ((packed)) mraid_notify_t;


/**
 * mraid_inquiry3_t - enquiry for device information
 *
 * @data_size		: current size in bytes (not including resvd)
 * @notify		:
 * @notify_rsvd		:
 * @rebuild_rate	: rebuild rate (0% - 100%)
 * @cache_flush_int	: cache flush interval in seconds
 * @sense_alert		:
 * @drive_insert_count	: drive insertion count
 * @battery_status	:
 * @num_ldrv		: no. of Log Drives configured
 * @recon_state		: state of reconstruct
 * @ldrv_op_status	: logdrv Status
 * @ldrv_size		: size of each log drv
 * @ldrv_prop		:
 * @ldrv_state		: state of log drives
 * @pdrv_state		: state of phys drvs.
 * @pdrv_format		:
 * @targ_xfer		: phys device transfer rate
 * @pad1k		: 761 + 263reserved = 1024 bytes total size
 */
#define MAX_NOTIFY_SIZE		0x80
#define CUR_NOTIFY_SIZE		sizeof(mraid_notify_t)

typedef struct {
	uint32_t	data_size;

	mraid_notify_t	notify;

	uint8_t		notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];

	uint8_t		rebuild_rate;
	uint8_t		cache_flush_int;
	uint8_t		sense_alert;
	uint8_t		drive_insert_count;

	uint8_t		battery_status;
	uint8_t		num_ldrv;
	uint8_t		recon_state[MAX_LOGICAL_DRIVES_40LD / 8];
	uint16_t	ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8];

	uint32_t	ldrv_size[MAX_LOGICAL_DRIVES_40LD];
	uint8_t		ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
	uint8_t		ldrv_state[MAX_LOGICAL_DRIVES_40LD];
	uint8_t		pdrv_state[FC_MAX_PHYSICAL_DEVICES];
	uint16_t	pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];

	uint8_t		targ_xfer[80];
	uint8_t		pad1k[263];
} __attribute__ ((packed)) mraid_inquiry3_t;


/**
 * mraid_adapinfo_t - information about the adapter
 * @max_commands		: max concurrent commands supported
 * @rebuild_rate		: rebuild rate - 0% thru 100%
 * @max_targ_per_chan		: max targ per channel
 * @nchannels			: number of channels on HBA
 * @fw_version			: firmware version
 * @age_of_flash		: number of times FW has been flashed
 * @chip_set_value		: contents of 0xC0000832
 * @dram_size			: in MB
 * @cache_flush_interval	: in seconds
 * @bios_version		:
 * @board_type			:
 * @sense_alert			:
 * @write_config_count		: increase with every configuration change
 * @drive_inserted_count	: increase with every drive inserted
 * @inserted_drive		: channel:Id of inserted drive
 * @battery_status		: bit 0: battery module missing
 *				bit 1: VBAD
 *				bit 2: temperature high
 *				bit 3: battery pack missing
 *				bit 4,5:
 *					00 - charge complete
 *					01 - fast charge in progress
 *					10 - fast charge fail
 *					11 - undefined
 *				bit 6: counter > 1000
 *				bit 7: Undefined
 * @dec_fault_bus_info		:
 */
typedef struct {
	uint8_t		max_commands;
	uint8_t		rebuild_rate;
	uint8_t		max_targ_per_chan;
	uint8_t		nchannels;
	uint8_t		fw_version[4];
	uint16_t	age_of_flash;
	uint8_t		chip_set_value;
	uint8_t		dram_size;
	uint8_t		cache_flush_interval;
	uint8_t		bios_version[4];
	uint8_t		board_type;
	uint8_t		sense_alert;
	uint8_t		write_config_count;
	uint8_t		battery_status;
	uint8_t		dec_fault_bus_info;
} __attribute__ ((packed)) mraid_adapinfo_t;


/**
 * mraid_ldrv_info_t - information about the logical drives
 * @nldrv	: Number of logical drives configured
 * @rsvd	:
 * @size	: size of each logical drive
 * @prop	:
 * @state	: state of each logical drive
 */
typedef struct {
	uint8_t		nldrv;
	uint8_t		rsvd[3];
	uint32_t	size[MAX_LOGICAL_DRIVES_8LD];
	uint8_t		prop[MAX_LOGICAL_DRIVES_8LD];
	uint8_t		state[MAX_LOGICAL_DRIVES_8LD];
} __attribute__ ((packed)) mraid_ldrv_info_t;


/**
 * mraid_pdrv_info_t - information about the physical drives
 * @pdrv_state	: state of each physical drive
 */
typedef struct {
	uint8_t		pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];
	uint8_t		rsvd;
} __attribute__ ((packed)) mraid_pdrv_info_t;


/**
 * mraid_inquiry_t - RAID inquiry, mailbox command 0x05
 * @mraid_adapinfo_t	: adapter information
 * @mraid_ldrv_info_t	: logical drives information
 * @mraid_pdrv_info_t	: physical drives information
 */
typedef struct {
	mraid_adapinfo_t	adapter_info;
	mraid_ldrv_info_t	logdrv_info;
	mraid_pdrv_info_t	pdrv_info;
} __attribute__ ((packed)) mraid_inquiry_t;


/**
 * mraid_extinq_t - RAID extended inquiry, mailbox command 0x04
 *
 * @raid_inq		: raid inquiry
 * @phys_drv_format	:
 * @stack_attn		:
 * @modem_status	:
 * @rsvd		:
 */
typedef struct {
	mraid_inquiry_t	raid_inq;
	uint16_t	phys_drv_format[MAX_MBOX_CHANNELS];
	uint8_t		stack_attn;
	uint8_t		modem_status;
	uint8_t		rsvd[2];
} __attribute__ ((packed)) mraid_extinq_t;


/**
 * adap_device_t - device information
 * @channel	: channel fpor the device
 * @target	: target ID of the device
 */
typedef struct {
	uint8_t		channel;
	uint8_t		target;
}__attribute__ ((packed)) adap_device_t;


/**
 * adap_span_40ld_t - 40LD span
 * @start_blk	: starting block
 * @num_blks	: number of blocks
 */
typedef struct {
	uint32_t	start_blk;
	uint32_t	num_blks;
	adap_device_t	device[MAX_ROW_SIZE_40LD];
}__attribute__ ((packed)) adap_span_40ld_t;


/**
 * adap_span_8ld_t - 8LD span
 * @start_blk	: starting block
 * @num_blks	: number of blocks
 */
typedef struct {
	uint32_t	start_blk;
	uint32_t	num_blks;
	adap_device_t	device[MAX_ROW_SIZE_8LD];
}__attribute__ ((packed)) adap_span_8ld_t;


/**
 * logdrv_param_t - logical drives parameters
 *
 * @span_depth	: total number of spans
 * @level	: RAID level
 * @read_ahead	: read ahead, no read ahead, adaptive read ahead
 * @stripe_sz	: encoded stripe size
 * @status	: status of the logical drive
 * @write_mode	: write mode, write_through/write_back
 * @direct_io	: direct io or through cache
 * @row_size	: number of stripes in a row
 */
typedef struct {
	uint8_t		span_depth;
	uint8_t		level;
	uint8_t		read_ahead;
	uint8_t		stripe_sz;
	uint8_t		status;
	uint8_t		write_mode;
	uint8_t		direct_io;
	uint8_t		row_size;
} __attribute__ ((packed)) logdrv_param_t;


/**
 * logdrv_40ld_t - logical drive definition for 40LD controllers
 * @lparam	: logical drives parameters
 * @span	: span
 */
typedef struct {
	logdrv_param_t		lparam;
	adap_span_40ld_t	span[SPAN_DEPTH_8_SPANS];
}__attribute__ ((packed)) logdrv_40ld_t;


/**
 * logdrv_8ld_span8_t - logical drive definition for 8LD controllers
 * @lparam	: logical drives parameters
 * @span	: span
 *
 * 8-LD logical drive with up to 8 spans
 */
typedef struct {
	logdrv_param_t	lparam;
	adap_span_8ld_t	span[SPAN_DEPTH_8_SPANS];
}__attribute__ ((packed)) logdrv_8ld_span8_t;


/**
 * logdrv_8ld_span4_t - logical drive definition for 8LD controllers
 * @lparam	: logical drives parameters
 * @span	: span
 *
 * 8-LD logical drive with up to 4 spans
 */
typedef struct {
	logdrv_param_t	lparam;
	adap_span_8ld_t	span[SPAN_DEPTH_4_SPANS];
}__attribute__ ((packed)) logdrv_8ld_span4_t;


/**
 * phys_drive_t - physical device information
 * @type	: Type of the device
 * @cur_status	: current status of the device
 * @tag_depth	: Level of tagging
 * @sync_neg	: sync negotiation - ENABLE or DISABLE
 * @size	: configurable size in terms of 512 byte
 */
typedef struct {
	uint8_t		type;
	uint8_t		cur_status;
	uint8_t		tag_depth;
	uint8_t		sync_neg;
	uint32_t	size;
}__attribute__ ((packed)) phys_drive_t;


/**
 * disk_array_40ld_t - disk array for 40LD controllers
 * @numldrv	: number of logical drives
 * @resvd	:
 * @ldrv	: logical drives information
 * @pdrv	: physical drives information
 */
typedef struct {
	uint8_t		numldrv;
	uint8_t		resvd[3];
	logdrv_40ld_t	ldrv[MAX_LOGICAL_DRIVES_40LD];
	phys_drive_t	pdrv[MBOX_MAX_PHYSICAL_DRIVES];
}__attribute__ ((packed)) disk_array_40ld_t;


/**
 * disk_array_8ld_span8_t - disk array for 8LD controllers
 * @numldrv	: number of logical drives
 * @resvd	:
 * @ldrv	: logical drives information
 * @pdrv	: physical drives information
 *
 * Disk array for 8LD logical drives with up to 8 spans
 */
typedef struct {
	uint8_t			numldrv;
	uint8_t			resvd[3];
	logdrv_8ld_span8_t	ldrv[MAX_LOGICAL_DRIVES_8LD];
	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];
}__attribute__ ((packed)) disk_array_8ld_span8_t;


/**
 * disk_array_8ld_span4_t - disk array for 8LD controllers
 * @numldrv	: number of logical drives
 * @resvd	:
 * @ldrv	: logical drives information
 * @pdrv	: physical drives information
 *
 * Disk array for 8LD logical drives with up to 4 spans
 */
typedef struct {
	uint8_t			numldrv;
	uint8_t			resvd[3];
	logdrv_8ld_span4_t	ldrv[MAX_LOGICAL_DRIVES_8LD];
	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];
}__attribute__ ((packed)) disk_array_8ld_span4_t;


/**
 * struct private_bios_data - bios private data for boot devices
 * @geometry	: bits 0-3 - BIOS geometry, 0x0001 - 1GB, 0x0010 - 2GB,
 *		0x1000 - 8GB, Others values are invalid
 * @unused	: bits 4-7 are unused
 * @boot_drv	: logical drive set as boot drive, 0..7 - for 8LD cards,
 * 		0..39 - for 40LD cards
 * @cksum	: 0-(sum of first 13 bytes of this structure)
 */
struct private_bios_data {
	uint8_t		geometry	:4;
	uint8_t		unused		:4;
	uint8_t		boot_drv;
	uint8_t		rsvd[12];
	uint16_t	cksum;
} __attribute__ ((packed));


/**
 * mbox_sgl64 - 64-bit scatter list for mailbox based controllers
 * @address	: address of the buffer
 * @length	: data transfer length
 */
typedef struct {
	uint64_t	address;
	uint32_t	length;
} __attribute__ ((packed)) mbox_sgl64;

/**
 * mbox_sgl32 - 32-bit scatter list for mailbox based controllers
 * @address	: address of the buffer
 * @length	: data transfer length
 */
typedef struct {
	uint32_t	address;
	uint32_t	length;
} __attribute__ ((packed)) mbox_sgl32;

#endif		// _MRAID_MBOX_DEFS_H_

/* vim: set ts=8 sw=8 tw=78: */