xref: /freebsd/sys/dev/ciss/cissreg.h (revision 3e5d0784b9b5296bda801add034b057ad68237f7)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2001 Michael Smith
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  *	$FreeBSD$
29  */
30 
31 /*
32  * Structure and I/O definitions for the Command Interface for SCSI-3 Support.
33  *
34  * Data in command CDBs are in big-endian format.  All other data is little-endian.
35  * This header only supports little-endian hosts at this time.
36  */
37 
38 union ciss_device_address
39 {
40     struct 				/* MODE_PERIPHERAL and MODE_MASK_PERIPHERAL */
41     {
42 	u_int32_t	target:24;	/* SCSI target */
43 	u_int32_t	bus:6;		/* SCSI bus */
44 	u_int32_t	mode:2;		/* CISS_HDR_ADDRESS_MODE_* */
45 	u_int32_t	extra_address;	/* SCSI-3 level-2 and level-3 address bytes */
46     } physical;
47     struct 				/* MODE_LOGICAL */
48     {
49 	u_int32_t	lun:30;		/* logical device ID */
50 	u_int32_t	mode:2;		/* CISS_HDR_ADDRESS_MODE_LOGICAL */
51 	u_int32_t	:32;		/* reserved */
52     } logical;
53     struct
54     {
55 	u_int32_t	:30;
56 	u_int32_t	mode:2;
57 	u_int32_t	:32;
58     } mode;
59 };
60 #define CISS_HDR_ADDRESS_MODE_PERIPHERAL	0x0
61 #define CISS_HDR_ADDRESS_MODE_LOGICAL		0x1
62 #define CISS_HDR_ADDRESS_MODE_MASK_PERIPHERAL	0x3
63 
64 #define CISS_EXTRA_MODE2(extra)		((extra & 0xc0000000) >> 30)
65 #define CISS_EXTRA_BUS2(extra)		((extra & 0x3f000000) >> 24)
66 #define CISS_EXTRA_TARGET2(extra)	((extra & 0x00ff0000) >> 16)
67 #define CISS_EXTRA_MODE3(extra)		((extra & 0x0000c000) >> 14)
68 #define CISS_EXTRA_BUS3(extra)		((extra & 0x00003f00) >> 8)
69 #define CISS_EXTRA_TARGET3(extra)	((extra & 0x000000ff))
70 
71 struct ciss_header
72 {
73     u_int8_t	:8;			/* reserved */
74     u_int8_t	sg_in_list;		/* SG's in the command structure */
75     u_int16_t	sg_total;		/* total count of SGs for this command */
76     u_int32_t	host_tag;		/* host identifier, bits 0&1 must be clear */
77 #define CISS_HDR_HOST_TAG_ERROR	(1<<1)
78     u_int32_t	host_tag_zeroes;	/* tag is 64 bits, but interface only supports 32 */
79     union ciss_device_address address;
80 } __packed;
81 
82 struct ciss_cdb
83 {
84     u_int8_t	cdb_length;		/* valid CDB bytes */
85     u_int8_t	type:3;
86 #define CISS_CDB_TYPE_COMMAND			0
87 #define CISS_CDB_TYPE_MESSAGE			1
88     u_int8_t	attribute:3;
89 #define CISS_CDB_ATTRIBUTE_UNTAGGED		0
90 #define CISS_CDB_ATTRIBUTE_SIMPLE		4
91 #define CISS_CDB_ATTRIBUTE_HEAD_OF_QUEUE	5
92 #define CISS_CDB_ATTRIBUTE_ORDERED		6
93 #define CISS_CDB_ATTRIBUTE_AUTO_CONTINGENT	7
94     u_int8_t	direction:2;
95 #define CISS_CDB_DIRECTION_NONE			0
96 #define CISS_CDB_DIRECTION_WRITE		1
97 #define CISS_CDB_DIRECTION_READ			2
98     u_int16_t	timeout;		/* seconds */
99 #define CISS_CDB_BUFFER_SIZE	16
100     u_int8_t	cdb[CISS_CDB_BUFFER_SIZE];
101 } __packed;
102 
103 struct ciss_error_info_pointer
104 {
105     u_int64_t	error_info_address;	/* points to ciss_error_info structure */
106     u_int32_t	error_info_length;
107 } __packed;
108 
109 struct ciss_error_info
110 {
111     u_int8_t	scsi_status;
112 #define CISS_SCSI_STATUS_GOOD			0x00	/* these are scsi-standard values */
113 #define CISS_SCSI_STATUS_CHECK_CONDITION	0x02
114 #define CISS_SCSI_STATUS_CONDITION_MET		0x04
115 #define CISS_SCSI_STATUS_BUSY			0x08
116 #define CISS_SCSI_STATUS_INDETERMINATE		0x10
117 #define CISS_SCSI_STATUS_INDETERMINATE_CM	0x14
118 #define CISS_SCSI_STATUS_RESERVATION_CONFLICT	0x18
119 #define CISS_SCSI_STATUS_COMMAND_TERMINATED	0x22
120 #define CISS_SCSI_STATUS_QUEUE_FULL		0x28
121 #define CISS_SCSI_STATUS_ACA_ACTIVE		0x30
122     u_int8_t	sense_length;
123     u_int16_t	command_status;
124 #define CISS_CMD_STATUS_SUCCESS			0
125 #define CISS_CMD_STATUS_TARGET_STATUS		1
126 #define CISS_CMD_STATUS_DATA_UNDERRUN		2
127 #define CISS_CMD_STATUS_DATA_OVERRUN		3
128 #define CISS_CMD_STATUS_INVALID_COMMAND		4
129 #define CISS_CMD_STATUS_PROTOCOL_ERROR		5
130 #define CISS_CMD_STATUS_HARDWARE_ERROR		6
131 #define CISS_CMD_STATUS_CONNECTION_LOST		7
132 #define CISS_CMD_STATUS_ABORTED			8
133 #define CISS_CMD_STATUS_ABORT_FAILED		9
134 #define CISS_CMD_STATUS_UNSOLICITED_ABORT	10
135 #define CISS_CMD_STATUS_TIMEOUT			11
136 #define CISS_CMD_STATUS_UNABORTABLE		12
137     u_int32_t	residual_count;
138     union {
139 	struct {
140 	    u_int8_t	res1[3];
141 	    u_int8_t	type;
142 	    u_int32_t	error_info;
143 	} __packed common_info;
144 	struct {
145 	    u_int8_t	res1[2];
146 	    u_int8_t	offense_size;
147 	    u_int8_t	offense_offset;
148 	    u_int32_t	offense_value;
149 	} __packed invalid_command;
150     } additional_error_info;
151     u_int8_t	sense_info[0];
152 } __packed;
153 
154 struct ciss_sg_entry
155 {
156     u_int64_t	address;
157 #define CISS_SG_ADDRESS_BITBUCKET	(~(u_int64_t)0)
158     u_int32_t	length;
159     u_int32_t	:31;
160     u_int32_t	extension:1;		/* address points to another s/g chain */
161 } __packed;
162 
163 struct ciss_command
164 {
165     struct ciss_header			header;
166     struct ciss_cdb			cdb;
167     struct ciss_error_info_pointer	error_info;
168     struct ciss_sg_entry		sg[0];
169 } __packed;
170 
171 #define CISS_OPCODE_REPORT_LOGICAL_LUNS		0xc2
172 #define CISS_OPCODE_REPORT_PHYSICAL_LUNS	0xc3
173 
174 struct ciss_lun_report
175 {
176     u_int32_t	list_size;		/* big-endian */
177     u_int32_t	:32;
178     union ciss_device_address lun[0];
179 } __packed;
180 
181 #define	CISS_VPD_LOGICAL_DRIVE_GEOMETRY		0xc1
182 struct ciss_ldrive_geometry
183 {
184     u_int8_t	periph_qualifier:3;
185     u_int8_t	periph_devtype:5;
186     u_int8_t	page_code;
187     u_int8_t	res1;
188     u_int8_t	page_length;
189     u_int16_t	cylinders;		/* big-endian */
190     u_int8_t	heads;
191     u_int8_t	sectors;
192     u_int8_t	fault_tolerance;
193     u_int8_t	res2[3];
194 } __attribute__ ((packed));
195 
196 struct ciss_report_cdb
197 {
198     u_int8_t	opcode;
199     u_int8_t	reserved[5];
200     u_int32_t	length;			/* big-endian */
201     u_int8_t	:8;
202     u_int8_t	control;
203 } __packed;
204 
205 /*
206  * Note that it's not clear whether we have to set the detail field to
207  * the tag of the command to be aborted, or the tag field in the command itself;
208  * documentation conflicts on this.
209  */
210 #define CISS_OPCODE_MESSAGE_ABORT		0x00
211 #define CISS_MESSAGE_ABORT_TASK			0x00
212 #define CISS_MESSAGE_ABORT_TASK_SET		0x01
213 #define CISS_MESSAGE_ABORT_CLEAR_ACA		0x02
214 #define CISS_MESSAGE_ABORT_CLEAR_TASK_SET	0x03
215 
216 #define CISS_OPCODE_MESSAGE_RESET		0x01
217 #define CISS_MESSAGE_RESET_CONTROLLER		0x00
218 #define CISS_MESSAGE_RESET_BUS			0x01
219 #define CISS_MESSAGE_RESET_TARGET		0x03
220 #define CISS_MESSAGE_RESET_LOGICAL_UNIT		0x04
221 
222 #define CISS_OPCODE_MESSAGE_SCAN		0x02
223 #define CISS_MESSAGE_SCAN_CONTROLLER		0x00
224 #define CISS_MESSAGE_SCAN_BUS			0x01
225 #define CISS_MESSAGE_SCAN_TARGET		0x03
226 #define CISS_MESSAGE_SCAN_LOGICAL_UNIT		0x04
227 
228 #define CISS_OPCODE_MESSAGE_NOP			0x03
229 
230 struct ciss_message_cdb
231 {
232     u_int8_t	opcode;
233     u_int8_t	type;
234     u_int16_t	:16;
235     u_int32_t	abort_tag;					/* XXX endianness? */
236     u_int8_t	reserved[8];
237 } __packed;
238 
239 /*
240  * CISS vendor-specific commands/messages.
241  *
242  * Note that while messages and vendor-specific commands are
243  * differentiated, they are handled in basically the same way and can
244  * be considered to be basically the same thing, as long as the cdb
245  * type field is set correctly.
246  */
247 #define CISS_OPCODE_READ		0xc0
248 #define CISS_OPCODE_WRITE		0xc1
249 #define CISS_COMMAND_NOTIFY_ON_EVENT	0xd0
250 #define CISS_COMMAND_ABORT_NOTIFY	0xd1
251 
252 struct ciss_notify_cdb
253 {
254     u_int8_t	opcode;
255     u_int8_t	command;
256     u_int8_t	res1[2];
257     u_int16_t	timeout;		/* seconds, little-endian */
258     u_int8_t	res2;			/* reserved */
259     u_int8_t	synchronous:1;		/* return immediately */
260     u_int8_t	ordered:1;		/* return events in recorded order */
261     u_int8_t	seek_to_oldest:1;	/* reset read counter to oldest event */
262     u_int8_t	new_only:1;		/* ignore any queued events */
263     u_int8_t	:4;
264     u_int32_t	length;			/* must be 512, little-endian */
265 #define CISS_NOTIFY_DATA_SIZE	512
266     u_int8_t	control;
267 } __packed;
268 
269 #define CISS_NOTIFY_NOTIFIER		0
270 #define CISS_NOTIFY_NOTIFIER_STATUS		0
271 #define CISS_NOTIFY_NOTIFIER_PROTOCOL		1
272 
273 #define CISS_NOTIFY_HOTPLUG		1
274 #define CISS_NOTIFY_HOTPLUG_PHYSICAL		0
275 #define CISS_NOTIFY_HOTPLUG_POWERSUPPLY		1
276 #define CISS_NOTIFY_HOTPLUG_FAN			2
277 #define CISS_NOTIFY_HOTPLUG_POWER		3
278 #define CISS_NOTIFY_HOTPLUG_REDUNDANT		4
279 #define CISS_NOTIFY_HOTPLUG_NONDISK		5
280 
281 #define CISS_NOTIFY_HARDWARE		2
282 #define CISS_NOTIFY_HARDWARE_CABLES		0
283 #define CISS_NOTIFY_HARDWARE_MEMORY		1
284 #define CISS_NOTIFY_HARDWARE_FAN		2
285 #define CISS_NOTIFY_HARDWARE_VRM		3
286 
287 #define CISS_NOTIFY_ENVIRONMENT		3
288 #define CISS_NOTIFY_ENVIRONMENT_TEMPERATURE	0
289 #define CISS_NOTIFY_ENVIRONMENT_POWERSUPPLY	1
290 #define CISS_NOTIFY_ENVIRONMENT_CHASSIS		2
291 #define CISS_NOTIFY_ENVIRONMENT_POWER		3
292 
293 #define CISS_NOTIFY_PHYSICAL		4
294 #define CISS_NOTIFY_PHYSICAL_STATE		0
295 
296 #define CISS_NOTIFY_LOGICAL		5
297 #define CISS_NOTIFY_LOGICAL_STATUS		0
298 #define CISS_NOTIFY_LOGICAL_ERROR		1
299 #define CISS_NOTIFY_LOGICAL_SURFACE		2
300 
301 #define CISS_NOTIFY_REDUNDANT		6
302 #define CISS_NOTIFY_REDUNDANT_STATUS		0
303 
304 #define CISS_NOTIFY_CISS		8
305 #define CISS_NOTIFY_CISS_REDUNDANT_CHANGE	0
306 #define CISS_NOTIFY_CISS_PATH_STATUS		1
307 #define CISS_NOTIFY_CISS_HARDWARE_ERROR		2
308 #define CISS_NOTIFY_CISS_LOGICAL		3
309 
310 struct ciss_notify_drive
311 {
312     u_int16_t	physical_drive_number;
313     u_int8_t	configured_drive_flag;
314     u_int8_t	spare_drive_flag;
315     u_int8_t	big_physical_drive_number;
316     u_int8_t	enclosure_bay_number;
317 } __packed;
318 
319 struct ciss_notify_locator
320 {
321     u_int16_t	port;
322     u_int16_t	id;
323     u_int16_t	box;
324 } __packed;
325 
326 struct ciss_notify_redundant_controller
327 {
328     u_int16_t	slot;
329 } __packed;
330 
331 struct ciss_notify_logical_status
332 {
333     u_int16_t	logical_drive;
334     u_int8_t	previous_state;
335     u_int8_t	new_state;
336     u_int8_t	spare_state;
337 } __packed;
338 
339 struct ciss_notify_rebuild_aborted
340 {
341     u_int16_t	logical_drive;
342     u_int8_t	replacement_drive;
343     u_int8_t	error_drive;
344     u_int8_t	big_replacement_drive;
345     u_int8_t	big_error_drive;
346 } __packed;
347 
348 struct ciss_notify_io_error
349 {
350     u_int16_t	logical_drive;
351     u_int32_t	lba;
352     u_int16_t	block_count;
353     u_int8_t	command;
354     u_int8_t	failure_bus;
355     u_int8_t	failure_drive;
356     u_int64_t	big_lba;
357 } __packed;
358 
359 struct ciss_notify_consistency_completed
360 {
361     u_int16_t	logical_drive;
362 } __packed;
363 
364 struct ciss_notify
365 {
366     u_int32_t	timestamp;		/* seconds since controller power-on */
367     u_int16_t	class;
368     u_int16_t	subclass;
369     u_int16_t	detail;
370     union
371     {
372 	struct ciss_notify_drive		drive;
373 	struct ciss_notify_locator		location;
374 	struct ciss_notify_redundant_controller	redundant_controller;
375 	struct ciss_notify_logical_status	logical_status;
376 	struct ciss_notify_rebuild_aborted	rebuild_aborted;
377 	struct ciss_notify_io_error		io_error;
378 	struct ciss_notify_consistency_completed consistency_completed;
379 	u_int8_t	data[64];
380     } data;
381     char	message[80];
382     u_int32_t	tag;
383     u_int16_t	date;
384     u_int16_t	year;
385     u_int32_t	time;
386     u_int16_t	pre_power_up_time;
387     union ciss_device_address	device;
388     /* XXX pads to 512 bytes */
389 } __packed;
390 
391 /*
392  * CISS config table, which describes the controller's
393  * supported interface(s) and capabilities.
394  *
395  * This is mapped directly via PCI.
396  */
397 struct ciss_config_table
398 {
399     char	signature[4];		/* "CISS" */
400     u_int32_t	valence;
401     u_int32_t	supported_methods;
402 #define CISS_TRANSPORT_METHOD_READY	(1<<0)
403 #define CISS_TRANSPORT_METHOD_SIMPLE	(1<<1)
404 #define CISS_TRANSPORT_METHOD_PERF	(1<<2)
405     u_int32_t	active_method;
406     u_int32_t	requested_method;
407     u_int32_t	command_physlimit;
408     u_int32_t	interrupt_coalesce_delay;
409     u_int32_t	interrupt_coalesce_count;
410     u_int32_t	max_outstanding_commands;
411     u_int32_t	bus_types;
412 #define CISS_TRANSPORT_BUS_TYPE_ULTRA2	(1<<0)
413 #define CISS_TRANSPORT_BUS_TYPE_ULTRA3	(1<<1)
414 #define CISS_TRANSPORT_BUS_TYPE_FIBRE1	(1<<8)
415 #define CISS_TRANSPORT_BUS_TYPE_FIBRE2	(1<<9)
416     u_int32_t	transport_offset;
417     char	server_name[16];
418     u_int32_t	heartbeat;
419     u_int32_t	host_driver;
420 #define CISS_DRIVER_SUPPORT_UNIT_ATTENTION	(1<<0)
421 #define CISS_DRIVER_QUICK_INIT			(1<<1)
422 #define CISS_DRIVER_INTERRUPT_ON_LOCKUP		(1<<2)
423 #define CISS_DRIVER_SUPPORT_MIXED_Q_TAGS	(1<<3)
424 #define CISS_DRIVER_HOST_IS_ALPHA		(1<<4)
425 #define CISS_DRIVER_MULTI_LUN_SUPPORT		(1<<5)
426 #define CISS_DRIVER_MESSAGE_REQUESTS_SUPPORTED	(1<<7)
427 #define CISS_DRIVER_DAUGHTER_ATTACHED		(1<<8)
428 #define CISS_DRIVER_SCSI_PREFETCH		(1<<9)
429     u_int32_t	max_sg_length;		/* 31 in older firmware */
430 /*
431  * these fields appear in OpenCISS Spec 1.06
432  * http://cciss.sourceforge.net/#docs
433  */
434     u_int32_t	max_logical_supported;
435     u_int32_t	max_physical_supported;
436     u_int32_t	max_physical_per_logical;
437     u_int32_t	max_perfomant_mode_cmds;
438     u_int32_t	max_block_fetch_count;
439 } __packed;
440 
441 /*
442  * Configuration table for the Performant transport.  Only 4 request queues
443  * are mentioned in this table, though apparently up to 256 can exist.
444  */
445 struct ciss_perf_config {
446     uint32_t	fetch_count[8];
447 #define CISS_SG_FETCH_MAX	0
448 #define CISS_SG_FETCH_1		1
449 #define CISS_SG_FETCH_2		2
450 #define CISS_SG_FETCH_4		3
451 #define CISS_SG_FETCH_8		4
452 #define CISS_SG_FETCH_16	5
453 #define CISS_SG_FETCH_32	6
454 #define CISS_SG_FETCH_NONE	7
455     uint32_t	rq_size;
456     uint32_t	rq_count;
457     uint32_t	rq_bank_lo;
458     uint32_t	rq_bank_hi;
459     struct {
460 	uint32_t	rq_addr_lo;
461 	uint32_t	rq_addr_hi;
462     } __packed rq[4];
463 } __packed;
464 
465 /*
466  * In a flagrant violation of what CISS seems to be meant to be about,
467  * Compaq recycle a goodly portion of their previous generation's
468  * command set (and all the legacy baggage related to a design
469  * originally aimed at narrow SCSI) through the Array Controller Read
470  * and Array Controller Write interface.
471  *
472  * Command ID values here can be looked up for in the
473  * publically-available documentation for the older controllers; note
474  * that the command layout is necessarily different to fit within the
475  * CDB.
476  */
477 #define CISS_ARRAY_CONTROLLER_READ	0x26
478 #define CISS_ARRAY_CONTROLLER_WRITE	0x27
479 
480 #define CISS_BMIC_ID_LDRIVE		0x10
481 #define CISS_BMIC_ID_CTLR		0x11
482 #define CISS_BMIC_ID_LSTATUS		0x12
483 #define CISS_BMIC_ID_PDRIVE		0x15
484 #define CISS_BMIC_BLINK_PDRIVE		0x16
485 #define CISS_BMIC_SENSE_BLINK_PDRIVE	0x17
486 #define CISS_BMIC_SOFT_RESET		0x40
487 #define CISS_BMIC_FLUSH_CACHE		0xc2
488 #define CISS_BMIC_ACCEPT_MEDIA		0xe0
489 
490 /*
491  * When numbering drives, the original design assumed that
492  * drives 0-7 are on the first SCSI bus, 8-15 on the second,
493  * and so forth.  In order to handle modern SCSI configurations,
494  * the MSB is set in the drive ID field, in which case the
495  * modulus changes from 8 to the number of supported drives
496  * per SCSI bus (as obtained from the ID_CTLR command).
497  * This feature is referred to as BIG_MAP support, and we assume
498  * that all CISS controllers support it.
499  */
500 
501 #define CISS_BIG_MAP_ID(sc, bus, target)		\
502 	(0x80 | 					\
503 	 ((sc)->ciss_id->drives_per_scsi_bus * (bus)) |	\
504 	 (target))
505 
506 #define CISS_BIG_MAP_BUS(sc, id)			\
507 	(((id) & 0x80) ? (((id) & ~0x80) / (sc)->ciss_id->drives_per_scsi_bus) : -1)
508 
509 #define CISS_BIG_MAP_TARGET(sc, id)			\
510 	(((id) & 0x80) ? (((id) & ~0x80) % (sc)->ciss_id->drives_per_scsi_bus) : -1)
511 
512 #define CISS_BIG_MAP_ENTRIES	128	/* number of entries in a BIG_MAP */
513 
514 /*
515  * In the device address of a logical volume, the bus number
516  * is encoded into the logical lun volume number starting
517  * at the second byte, with the first byte defining the
518  * logical drive number.
519  */
520 #define CISS_LUN_TO_BUS(x)    (((x) >> 16) & 0xFF)
521 #define CISS_LUN_TO_TARGET(x) ((x) & 0xFF)
522 
523 /*
524  * BMIC CDB
525  *
526  * Note that the phys_drive/res1 field is nominally the 32-bit
527  * "block number" field, but the only BMIC command(s) of interest
528  * implemented overload the MSB (note big-endian format here)
529  * to be the physical drive ID, so we define accordingly.
530  */
531 struct ciss_bmic_cdb {
532     u_int8_t	opcode;
533     u_int8_t	log_drive;
534     u_int8_t	phys_drive;
535     u_int8_t	res1[3];
536     u_int8_t	bmic_opcode;
537     u_int16_t	size;			/* big-endian */
538     u_int8_t	res2;
539 } __packed;
540 
541 /*
542  * BMIC command command/return structures.
543  */
544 
545 /* CISS_BMIC_ID_LDRIVE */
546 struct ciss_bmic_id_ldrive {
547     u_int16_t	block_size;
548     u_int32_t	blocks_available;
549     u_int8_t	drive_parameter_table[16];	/* XXX define */
550     u_int8_t	fault_tolerance;
551 #define CISS_LDRIVE_RAID0	0
552 #define CISS_LDRIVE_RAID4	1
553 #define CISS_LDRIVE_RAID1	2
554 #define CISS_LDRIVE_RAID5	3
555 #define CISS_LDRIVE_RAID51	4
556 #define CISS_LDRIVE_RAIDADG	5
557     u_int8_t	res1;
558     u_int8_t	bios_disable_flag;
559     u_int8_t	res2;
560     u_int32_t	logical_drive_identifier;
561     char	logical_drive_label[64];
562     u_int64_t	big_blocks_available;
563     u_int8_t	res3[410];
564 } __packed;
565 
566 /* CISS_BMIC_ID_LSTATUS */
567 struct ciss_bmic_id_lstatus {
568     u_int8_t	status;
569 #define CISS_LSTATUS_OK				0
570 #define CISS_LSTATUS_FAILED			1
571 #define CISS_LSTATUS_NOT_CONFIGURED		2
572 #define CISS_LSTATUS_INTERIM_RECOVERY		3
573 #define CISS_LSTATUS_READY_RECOVERY		4
574 #define CISS_LSTATUS_RECOVERING			5
575 #define CISS_LSTATUS_WRONG_PDRIVE		6
576 #define CISS_LSTATUS_MISSING_PDRIVE		7
577 #define CISS_LSTATUS_EXPANDING			10
578 #define CISS_LSTATUS_BECOMING_READY		11
579 #define CISS_LSTATUS_QUEUED_FOR_EXPANSION	12
580     u_int32_t	deprecated_drive_failure_map;
581     u_int8_t	res1[416];
582     u_int32_t	blocks_to_recover;
583     u_int8_t	deprecated_drive_rebuilding;
584     u_int16_t	deprecated_remap_count[32];
585     u_int32_t	deprecated_replacement_map;
586     u_int32_t	deprecated_active_spare_map;
587     u_int8_t	spare_configured:1;
588     u_int8_t	spare_rebuilding:1;
589     u_int8_t	spare_rebuilt:1;
590     u_int8_t	spare_failed:1;
591     u_int8_t	spare_switched:1;
592     u_int8_t	spare_available:1;
593     u_int8_t	res2:2;
594     u_int8_t	deprecated_spare_to_replace_map[32];
595     u_int32_t	deprecated_replaced_marked_ok_map;
596     u_int8_t	media_exchanged;
597     u_int8_t	cache_failure;
598     u_int8_t	expand_failure;
599     u_int8_t	rebuild_read_failure:1;
600     u_int8_t	rebuild_write_failure:1;
601     u_int8_t	res3:6;
602     u_int8_t	drive_failure_map[CISS_BIG_MAP_ENTRIES / 8];
603     u_int16_t	remap_count[CISS_BIG_MAP_ENTRIES];
604     u_int8_t	replacement_map[CISS_BIG_MAP_ENTRIES / 8];
605     u_int8_t	active_spare_map[CISS_BIG_MAP_ENTRIES / 8];
606     u_int8_t	spare_to_replace_map[CISS_BIG_MAP_ENTRIES];
607     u_int8_t	replaced_marked_ok_map[CISS_BIG_MAP_ENTRIES / 8];
608     u_int8_t	drive_rebuilding;
609     u_int64_t	big_blocks_to_recover;
610     u_int8_t	res4[28];
611 } __packed;
612 
613 /* CISS_BMIC_ID_CTLR */
614 struct ciss_bmic_id_table {
615     u_int8_t	configured_logical_drives;
616     u_int32_t	config_signature;
617     char	running_firmware_revision[4];
618     char	stored_firmware_revision[4];
619     u_int8_t	hardware_revision;
620     u_int8_t	boot_block_revision[4];
621     u_int32_t	deprecated_drive_present_map;
622     u_int32_t	deprecated_external_drive_present_map;
623     u_int32_t	board_id;
624     u_int8_t	swapped_error_cable;
625     u_int32_t	deprecated_non_disk_map;
626     u_int8_t	bad_host_ram_addr;
627     u_int8_t	cpu_revision;
628     u_int8_t	res3[3];
629     char	marketting_revision;
630     u_int8_t	controller_flags;
631 #define	CONTROLLER_FLAGS_FLASH_ROM_INSTALLED	0x01
632 #define	CONTROLLER_FLAGS_DIAGS_MODE_BIT		0x02
633 #define	CONTROLLER_FLAGS_EXPAND_32MB_FX 	0x04
634 #define	CONTROLLER_FLAGS_MORE_THAN_7_SUPPORT 	0x08
635 #define	CONTROLLER_FLAGS_DAISY_SUPPORT_BIT 	0x10
636 #define	CONTROLLER_FLAGS_RES6 			0x20
637 #define	CONTROLLER_FLAGS_RES7 			0x40
638 #define	CONTROLLER_FLAGS_BIG_MAP_SUPPORT 	0x80
639     u_int8_t	host_flags;
640 #define HOST_FLAGS_SDB_ASIC_WORK_AROUND 	0x01
641 #define HOST_FLAGS_PCI_DATA_BUS_PARITY_SUPPORT	0x02
642 #define HOST_FLAGS_RES3				0x04
643 #define HOST_FLAGS_RES4				0x08
644 #define HOST_FLAGS_RES5				0x10
645 #define HOST_FLAGS_RES6				0x20
646 #define HOST_FLAGS_RES7				0x30
647 #define HOST_FLAGS_RES8				0x40
648     u_int8_t	expand_disable_code;
649 #define EXPAND_DISABLE_NOT_NEEDED		0x01
650 #define EXPAND_DISABLE_MISSING_CACHE_BOARD	0x02
651 #define EXPAND_DISABLE_WCXC_FATAL_CACHE_BITS	0x04
652 #define EXPAND_DISABLE_CACHE_PERM_DISABLED	0x08
653 #define EXPAND_DISABLE_RAM_ALLOCATION_FAILED	0x10
654 #define EXPAND_DISABLE_BATTEREIS_DISCHARGED	0x20
655 #define EXPAND_DISABLE_RES7			0x40
656 #define EXPAND_DISABLE_REBUILD_RUNNING		0x80
657     u_int8_t	scsi_chip_count;
658     u_int32_t	maximum_blocks;
659     u_int32_t	controller_clock;
660     u_int8_t	drives_per_scsi_bus;
661     u_int8_t	big_drive_present_map[CISS_BIG_MAP_ENTRIES / 8];
662     u_int8_t	big_external_drive_present_map[CISS_BIG_MAP_ENTRIES / 8];
663     u_int8_t	big_non_disk_map[CISS_BIG_MAP_ENTRIES / 8];
664 
665     u_int16_t	task_flags;		/* used for FW debugging */
666     u_int8_t	ICL_bus_map;		/* Bitmap used for ICL between controllers */
667     u_int8_t	redund_ctlr_modes_support;	/* See REDUNDANT MODE VALUES */
668     u_int8_t	curr_redund_ctlr_mode;
669     u_int8_t	redund_ctlr_status;
670     u_int8_t	redund_op_failure_code;
671 
672     u_int8_t	unsupported_nile_bus;
673     u_int8_t	host_i2c_autorev;
674     u_int8_t	cpld_revision;
675     u_int8_t	fibre_chip_count;
676     u_int8_t	daughterboard_type;
677     u_int8_t	more_swapped_config_cable_error;
678 
679     u_int8_t	license_key_status;
680     u_int8_t	access_module_status;
681     u_int8_t	features_supported[12];
682     u_int8_t	rec_rom_inact_rev[4];    /* Recovery ROM inactive f/w revision  */
683     u_int8_t	rec_rom_act_status;      /* Recovery ROM flags                  */
684     u_int8_t	pci_to_pci_status;       /* PCI to PCI bridge status            */
685     u_int32_t	redundant_server_info;   /* Reserved for future use             */
686     u_int8_t	percent_write_cache;     /* Percent of memory allocated to write cache */
687     u_int16_t	daughterboard_size_mb;   /* Total size (MB) of cache board      */
688     u_int8_t	cache_batter_count;      /* Number of cache batteries           */
689     u_int16_t	total_controller_mem_mb; /* Total size (MB) of atttached memory */
690     u_int8_t	more_controller_flags;   /* Additional controller flags byte    */
691     u_int8_t	x_board_host_i2c_rev;    /* 2nd byte of 3 byte autorev field    */
692     u_int8_t	battery_pic_rev;         /* BBWC PIC revision                   */
693 /*
694  * Below here I have no documentation on the rest of this data structure.  It is
695  * inferred from the opensource cciss_vol_status application.  I assume that this
696  * data strucutre is 512 bytes in total size, do not exceed it.
697  */
698     u_int8_t	bDdffVersion[4];         /* DDFF update engine version          */
699     u_int16_t	usMaxLogicalUnits;       /* Maximum logical units supported */
700     u_int16_t	usExtLogicalUnitCount;   /* Big num configured logical units */
701     u_int16_t	usMaxPhysicalDevices;    /* Maximum physical devices supported */
702     u_int16_t	usMaxPhyDrvPerLogicalUnit; /* Max physical drive per logical unit */
703     u_int8_t	bEnclosureCount;         /* Number of attached enclosures */
704     u_int8_t	bExpanderCount;          /* Number of expanders detected */
705     u_int16_t	usOffsetToEDPbitmap;     /* Offset to extended drive present map*/
706     u_int16_t	usOffsetToEEDPbitmap;    /* Offset to extended external drive present map */
707     u_int16_t	usOffsetToENDbitmap;     /* Offset to extended non-disk map */
708     u_int8_t	bInternalPortStatus[8];  /* Internal port status bytes */
709     u_int8_t	bExternalPortStatus[8];  /* External port status bytes */
710     u_int32_t	uiYetMoreControllerFlags;/* Yet More Controller flags  */
711 #define YMORE_CONTROLLER_FLAGS_JBOD_SUPPORTED \
712 	( 1 << 25 )			 /* Controller has JBOD support */
713 
714     u_int8_t	bLastLockup;              /* Last lockup code */
715     u_int8_t	bSlot;                    /* PCI slot according to option ROM*/
716     u_int16_t	usBuildNum;               /* Build number */
717     u_int32_t	uiMaxSafeFullStripeSize;  /* Maximum safe full stripe size */
718     u_int32_t	uiTotalLength;            /* Total structure length */
719     u_int8_t	bVendorID[8];             /* Vendor ID */
720     u_int8_t	bProductID[16];           /* Product ID */
721 /*
722  * These are even more obscure as they seem to only be available in cciss_vol_status
723  */
724     u_int32_t	ExtendedLastLockupCode;
725     u_int16_t	MaxRaid;
726     u_int16_t	MaxParity;
727     u_int16_t	MaxADGStripSize;
728     u_int16_t	YetMoreSwappedCables;
729     u_int8_t	MaxDevicePaths;
730     u_int8_t	PowerUPNvramFlags;
731 #define PWR_UP_FLAG_JBOD_ENABLED	0x08	/*JBOD mode is enabled, all RAID features off */
732 
733     u_int16_t	ZonedOffset;
734     u_int32_t   FixedFieldsLength;
735     u_int8_t	FWCompileTimeStamp[24];
736     u_int32_t	EvenMoreControllerFlags;
737     u_int8_t	padding[240];
738 } __packed;
739 
740 /* CISS_BMIC_ID_PDRIVE */
741 struct ciss_bmic_id_pdrive {
742     u_int8_t	scsi_bus;
743     u_int8_t	scsi_id;
744     u_int16_t	block_size;
745     u_int32_t	total_blocks;
746     u_int32_t	reserved_blocks;
747     char	model[40];
748     char	serial[40];
749     char	revision[8];
750     u_int8_t	inquiry_bits;
751     u_int8_t	res1[2];
752     u_int8_t	drive_present:1;
753     u_int8_t	non_disk:1;
754     u_int8_t	wide:1;
755     u_int8_t	synchronous:1;
756     u_int8_t	narrow:1;
757     u_int8_t	wide_downgraded_to_narrow:1;
758     u_int8_t	ultra:1;
759     u_int8_t	ultra2:1;
760     u_int8_t	SMART:1;
761     u_int8_t	SMART_errors_recorded:1;
762     u_int8_t	SMART_errors_enabled:1;
763     u_int8_t	SMART_errors_detected:1;
764     u_int8_t	external:1;
765     u_int8_t	configured:1;
766     u_int8_t	configured_spare:1;
767     u_int8_t	cache_saved_enabled:1;
768     u_int8_t	res2;
769     u_int8_t	res3:6;
770     u_int8_t	cache_currently_enabled:1;
771     u_int8_t	cache_safe:1;
772     u_int8_t	res4[5];
773     char	connector[2];
774     u_int8_t	res5;
775     u_int8_t	bay;
776     u_int16_t	rpm;
777     u_int8_t	drive_type;
778     u_int8_t	res6[393];
779 } __packed;
780 
781 /* CISS_BMIC_BLINK_PDRIVE */
782 /* CISS_BMIC_SENSE_BLINK_PDRIVE */
783 struct ciss_bmic_blink_pdrive {
784     u_int32_t	blink_duration;		/* 10ths of a second */
785     u_int32_t	duration_elapsed;	/* only for sense command  */
786     u_int8_t	blinktab[256];
787 #define CISS_BMIC_BLINK_ALL	1
788 #define CISS_BMIC_BLINK_TIMED	2
789     u_int8_t	res2[248];
790 } __packed;
791 
792 /* CISS_BMIC_FLUSH_CACHE */
793 struct ciss_bmic_flush_cache {
794     u_int16_t	flag;
795 #define CISS_BMIC_FLUSH_AND_ENABLE	0
796 #define CISS_BMIC_FLUSH_AND_DISABLE	1
797     u_int8_t	res1[510];
798 } __packed;
799 
800 #ifdef _KERNEL
801 /*
802  * CISS "simple" transport layer.
803  *
804  * Note that there are two slightly different versions of this interface
805  * with different interrupt mask bits.  There's nothing like consistency...
806  */
807 #define CISS_TL_SIMPLE_BAR_REGS	0x10	/* BAR pointing to register space */
808 #define CISS_TL_SIMPLE_BAR_CFG	0x14	/* BAR pointing to space containing config table */
809 
810 #define CISS_TL_SIMPLE_IDBR	0x20	/* inbound doorbell register */
811 #define CISS_TL_SIMPLE_IDBR_CFG_TABLE	(1<<0)	/* notify controller of config table update */
812 
813 #define CISS_TL_SIMPLE_ISR	0x30	/* interrupt status register */
814 #define CISS_TL_SIMPLE_IMR	0x34	/* interrupt mask register */
815 #define CISS_TL_SIMPLE_INTR_OPQ_SA5	(1<<3)	/* OPQ not empty interrupt, SA5 boards */
816 #define CISS_TL_SIMPLE_INTR_OPQ_SA5B	(1<<2)	/* OPQ not empty interrupt, SA5B boards */
817 
818 #define CISS_TL_SIMPLE_IPQ	0x40	/* inbound post queue */
819 #define CISS_TL_SIMPLE_OPQ	0x44	/* outbound post queue */
820 #define CISS_TL_SIMPLE_OPQ_EMPTY	(~(u_int32_t)0)
821 
822 #define CISS_TL_SIMPLE_OSR	0x9c	/* outbound status register */
823 #define CISS_TL_SIMPLE_ODC	0xa0	/* outbound doorbell clear register */
824 #define CISS_TL_SIMPLE_ODC_CLEAR	(0x1)
825 
826 #define CISS_TL_SIMPLE_CFG_BAR	0xb4	/* should be 0x14 */
827 #define CISS_TL_SIMPLE_CFG_OFF	0xb8	/* offset in BAR at which config table is located */
828 
829 /*
830  * Register access primitives.
831  */
832 #define CISS_TL_SIMPLE_READ(sc, ofs) \
833 	bus_space_read_4(sc->ciss_regs_btag, sc->ciss_regs_bhandle, ofs)
834 #define CISS_TL_SIMPLE_WRITE(sc, ofs, val) \
835 	bus_space_write_4(sc->ciss_regs_btag, sc->ciss_regs_bhandle, ofs, val)
836 
837 #define CISS_TL_SIMPLE_POST_CMD(sc, phys)	CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IPQ, phys)
838 #define CISS_TL_SIMPLE_FETCH_CMD(sc)		CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_OPQ)
839 
840 #define CISS_TL_PERF_INTR_OPQ	(CISS_TL_SIMPLE_INTR_OPQ_SA5 | CISS_TL_SIMPLE_INTR_OPQ_SA5B)
841 #define CISS_TL_PERF_INTR_MSI	0x01
842 
843 #define CISS_TL_PERF_POST_CMD(sc, cr)		CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IPQ, cr->cr_ccphys | (cr)->cr_sg_tag)
844 #define CISS_TL_PERF_FLUSH_INT(sc)		CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_OSR)
845 #define CISS_TL_PERF_CLEAR_INT(sc)		CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_ODC, CISS_TL_SIMPLE_ODC_CLEAR)
846 #define CISS_CYCLE_MASK		0x00000001
847 
848 /* Only need one MSI/MSI-X vector */
849 #define CISS_MSI_COUNT	1
850 
851 #define CISS_TL_SIMPLE_DISABLE_INTERRUPTS(sc) \
852 	CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IMR, \
853 			     CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IMR) | (sc)->ciss_interrupt_mask)
854 #define CISS_TL_SIMPLE_ENABLE_INTERRUPTS(sc) \
855 	CISS_TL_SIMPLE_WRITE(sc, CISS_TL_SIMPLE_IMR, \
856 			     CISS_TL_SIMPLE_READ(sc, CISS_TL_SIMPLE_IMR) & ~(sc)->ciss_interrupt_mask)
857 
858 #endif /* _KERNEL */
859