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Implement pci_enable_msi() and pci_disable_msi() in the LinuxKPI.
[FreeBSD/FreeBSD.git] / sys / dev / ciss / cissreg.h
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
859
860 #endif /* _KERNEL */