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Linux 3.18-rc4
[linux-2.6/luiz-linux-2.6.git] / drivers / scsi / megaraid.h
blob508d65e5a5184d3259e85fadeea3d846863f492a
1 #ifndef __MEGARAID_H__
2 #define __MEGARAID_H__
3
4 #include <linux/spinlock.h>
5 #include <linux/mutex.h>
6
7 #define MEGARAID_VERSION \
8 "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n"
9
10 /*
11 * Driver features - change the values to enable or disable features in the
12 * driver.
13 */
14
15 /*
16 * Command coalescing - This feature allows the driver to be able to combine
17 * two or more commands and issue as one command in order to boost I/O
18 * performance. Useful if the nature of the I/O is sequential. It is not very
19 * useful for random natured I/Os.
20 */
21 #define MEGA_HAVE_COALESCING 0
22
23 /*
24 * Clustering support - Set this flag if you are planning to use the
25 * clustering services provided by the megaraid controllers and planning to
26 * setup a cluster
27 */
28 #define MEGA_HAVE_CLUSTERING 1
29
30 /*
31 * Driver statistics - Set this flag if you are interested in statics about
32 * number of I/O completed on each logical drive and how many interrupts
33 * generated. If enabled, this information is available through /proc
34 * interface and through the private ioctl. Setting this flag has a
35 * performance penalty.
36 */
37 #define MEGA_HAVE_STATS 0
38
39 /*
40 * Enhanced /proc interface - This feature will allow you to have a more
41 * detailed /proc interface for megaraid driver. E.g., a real time update of
42 * the status of the logical drives, battery status, physical drives etc.
43 */
44 #define MEGA_HAVE_ENH_PROC 1
45
46 #define MAX_DEV_TYPE 32
47
48 #define PCI_DEVICE_ID_DISCOVERY 0x000E
49 #define PCI_DEVICE_ID_PERC4_DI 0x000F
50 #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407
51
52 #define HBA_SIGNATURE 0x3344
53 #define HBA_SIGNATURE_471 0xCCCC
54 #define HBA_SIGNATURE_64BIT 0x0299
55
56 #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for
57 mailbox to be free */
58 #define DEFAULT_INITIATOR_ID 7
59
60 #define MAX_SGLIST 64 /* max supported in f/w */
61 #define MIN_SGLIST 26 /* guaranteed to support these many */
62 #define MAX_COMMANDS 126
63 #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS
64 is less than max commands
65 supported by any f/w */
66
67 #define MAX_CDB_LEN 10
68 #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */
69
70 #define DEF_CMD_PER_LUN 63
71 #define MAX_CMD_PER_LUN MAX_COMMANDS
72 #define MAX_FIRMWARE_STATUS 46
73 #define MAX_XFER_PER_CMD (64*1024)
74 #define MAX_SECTORS_PER_IO 128
75
76 #define MAX_LOGICAL_DRIVES_40LD 40
77 #define FC_MAX_PHYSICAL_DEVICES 256
78 #define MAX_LOGICAL_DRIVES_8LD 8
79 #define MAX_CHANNELS 5
80 #define MAX_TARGET 15
81 #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET
82 #define MAX_ROW_SIZE_40LD 32
83 #define MAX_ROW_SIZE_8LD 8
84 #define MAX_SPAN_DEPTH 8
85
86 #define NVIRT_CHAN 4 /* # of virtual channels to represent
87 up to 60 logical drives */
88 struct mbox_out {
89 /* 0x0 */ u8 cmd;
90 /* 0x1 */ u8 cmdid;
91 /* 0x2 */ u16 numsectors;
92 /* 0x4 */ u32 lba;
93 /* 0x8 */ u32 xferaddr;
94 /* 0xC */ u8 logdrv;
95 /* 0xD */ u8 numsgelements;
96 /* 0xE */ u8 resvd;
97 } __attribute__ ((packed));
98
99 struct mbox_in {
100 /* 0xF */ volatile u8 busy;
101 /* 0x10 */ volatile u8 numstatus;
102 /* 0x11 */ volatile u8 status;
103 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS];
104 volatile u8 poll;
105 volatile u8 ack;
106 } __attribute__ ((packed));
107
108 typedef struct {
109 struct mbox_out m_out;
110 struct mbox_in m_in;
111 } __attribute__ ((packed)) mbox_t;
112
113 typedef struct {
114 u32 xfer_segment_lo;
115 u32 xfer_segment_hi;
116 mbox_t mbox;
117 } __attribute__ ((packed)) mbox64_t;
118
119
120 /*
121 * Passthru definitions
122 */
123 #define MAX_REQ_SENSE_LEN 0x20
124
125 typedef struct {
126 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
127 u8 ars:1;
128 u8 reserved:3;
129 u8 islogical:1;
130 u8 logdrv; /* if islogical == 1 */
131 u8 channel; /* if islogical == 0 */
132 u8 target; /* if islogical == 0 */
133 u8 queuetag; /* unused */
134 u8 queueaction; /* unused */
135 u8 cdb[MAX_CDB_LEN];
136 u8 cdblen;
137 u8 reqsenselen;
138 u8 reqsensearea[MAX_REQ_SENSE_LEN];
139 u8 numsgelements;
140 u8 scsistatus;
141 u32 dataxferaddr;
142 u32 dataxferlen;
143 } __attribute__ ((packed)) mega_passthru;
144
145
146 /*
147 * Extended passthru: support CDB > 10 bytes
148 */
149 typedef struct {
150 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
151 u8 ars:1;
152 u8 rsvd1:1;
153 u8 cd_rom:1;
154 u8 rsvd2:1;
155 u8 islogical:1;
156 u8 logdrv; /* if islogical == 1 */
157 u8 channel; /* if islogical == 0 */
158 u8 target; /* if islogical == 0 */
159 u8 queuetag; /* unused */
160 u8 queueaction; /* unused */
161 u8 cdblen;
162 u8 rsvd3;
163 u8 cdb[MAX_EXT_CDB_LEN];
164 u8 numsgelements;
165 u8 status;
166 u8 reqsenselen;
167 u8 reqsensearea[MAX_REQ_SENSE_LEN];
168 u8 rsvd4;
169 u32 dataxferaddr;
170 u32 dataxferlen;
171 } __attribute__ ((packed)) mega_ext_passthru;
172
173 typedef struct {
174 u64 address;
175 u32 length;
176 } __attribute__ ((packed)) mega_sgl64;
177
178 typedef struct {
179 u32 address;
180 u32 length;
181 } __attribute__ ((packed)) mega_sglist;
182
183
184 /* Queued command data */
185 typedef struct {
186 int idx;
187 u32 state;
188 struct list_head list;
189 u8 raw_mbox[66];
190 u32 dma_type;
191 u32 dma_direction;
192
193 Scsi_Cmnd *cmd;
194 dma_addr_t dma_h_bulkdata;
195 dma_addr_t dma_h_sgdata;
196
197 mega_sglist *sgl;
198 mega_sgl64 *sgl64;
199 dma_addr_t sgl_dma_addr;
200
201 mega_passthru *pthru;
202 dma_addr_t pthru_dma_addr;
203 mega_ext_passthru *epthru;
204 dma_addr_t epthru_dma_addr;
205 } scb_t;
206
207 /*
208 * Flags to follow the scb as it transitions between various stages
209 */
210 #define SCB_FREE 0x0000 /* on the free list */
211 #define SCB_ACTIVE 0x0001 /* off the free list */
212 #define SCB_PENDQ 0x0002 /* on the pending queue */
213 #define SCB_ISSUED 0x0004 /* issued - owner f/w */
214 #define SCB_ABORT 0x0008 /* Got an abort for this one */
215 #define SCB_RESET 0x0010 /* Got a reset for this one */
216
217 /*
218 * Utilities declare this strcture size as 1024 bytes. So more fields can
219 * be added in future.
220 */
221 typedef struct {
222 u32 data_size; /* current size in bytes (not including resvd) */
223
224 u32 config_signature;
225 /* Current value is 0x00282008
226 * 0x28=MAX_LOGICAL_DRIVES,
227 * 0x20=Number of stripes and
228 * 0x08=Number of spans */
229
230 u8 fw_version[16]; /* printable ASCI string */
231 u8 bios_version[16]; /* printable ASCI string */
232 u8 product_name[80]; /* printable ASCI string */
233
234 u8 max_commands; /* Max. concurrent commands supported */
235 u8 nchannels; /* Number of SCSI Channels detected */
236 u8 fc_loop_present; /* Number of Fibre Loops detected */
237 u8 mem_type; /* EDO, FPM, SDRAM etc */
238
239 u32 signature;
240 u16 dram_size; /* In terms of MB */
241 u16 subsysid;
242
243 u16 subsysvid;
244 u8 notify_counters;
245 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */
246 } __attribute__ ((packed)) mega_product_info;
247
248 struct notify {
249 u32 global_counter; /* Any change increments this counter */
250
251 u8 param_counter; /* Indicates any params changed */
252 u8 param_id; /* Param modified - defined below */
253 u16 param_val; /* New val of last param modified */
254
255 u8 write_config_counter; /* write config occurred */
256 u8 write_config_rsvd[3];
257
258 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */
259 u8 ldrv_opid; /* ldrv num */
260 u8 ldrv_opcmd; /* ldrv operation - defined below */
261 u8 ldrv_opstatus; /* status of the operation */
262
263 u8 ldrv_state_counter; /* Indicates change of ldrv state */
264 u8 ldrv_state_id; /* ldrv num */
265 u8 ldrv_state_new; /* New state */
266 u8 ldrv_state_old; /* old state */
267
268 u8 pdrv_state_counter; /* Indicates change of ldrv state */
269 u8 pdrv_state_id; /* pdrv id */
270 u8 pdrv_state_new; /* New state */
271 u8 pdrv_state_old; /* old state */
272
273 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */
274 u8 pdrv_fmt_id; /* pdrv id */
275 u8 pdrv_fmt_val; /* format started/over */
276 u8 pdrv_fmt_rsvd;
277
278 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */
279 u8 targ_xfer_id; /* pdrv Id */
280 u8 targ_xfer_val; /* new Xfer params of last pdrv */
281 u8 targ_xfer_rsvd;
282
283 u8 fcloop_id_chg_counter; /* Indicates loopid changed */
284 u8 fcloopid_pdrvid; /* pdrv id */
285 u8 fcloop_id0; /* loopid on fc loop 0 */
286 u8 fcloop_id1; /* loopid on fc loop 1 */
287
288 u8 fcloop_state_counter; /* Indicates loop state changed */
289 u8 fcloop_state0; /* state of fc loop 0 */
290 u8 fcloop_state1; /* state of fc loop 1 */
291 u8 fcloop_state_rsvd;
292 } __attribute__ ((packed));
293
294 #define MAX_NOTIFY_SIZE 0x80
295 #define CUR_NOTIFY_SIZE sizeof(struct notify)
296
297 typedef struct {
298 u32 data_size; /* current size in bytes (not including resvd) */
299
300 struct notify notify;
301
302 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
303
304 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */
305 u8 cache_flush_interval; /* In terms of Seconds */
306 u8 sense_alert;
307 u8 drive_insert_count; /* drive insertion count */
308
309 u8 battery_status;
310 u8 num_ldrv; /* No. of Log Drives configured */
311 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of
312 reconstruct */
313 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv
314 Status */
315
316 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */
317 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
318 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */
319 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */
320 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];
321
322 u8 targ_xfer[80]; /* phys device transfer rate */
323 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */
324 } __attribute__ ((packed)) mega_inquiry3;
325
326
327 /* Structures */
328 typedef struct {
329 u8 max_commands; /* Max concurrent commands supported */
330 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */
331 u8 max_targ_per_chan; /* Max targ per channel */
332 u8 nchannels; /* Number of channels on HBA */
333 u8 fw_version[4]; /* Firmware version */
334 u16 age_of_flash; /* Number of times FW has been flashed */
335 u8 chip_set_value; /* Contents of 0xC0000832 */
336 u8 dram_size; /* In MB */
337 u8 cache_flush_interval; /* in seconds */
338 u8 bios_version[4];
339 u8 board_type;
340 u8 sense_alert;
341 u8 write_config_count; /* Increase with every configuration
342 change */
343 u8 drive_inserted_count; /* Increase with every drive inserted
344 */
345 u8 inserted_drive; /* Channel:Id of inserted drive */
346 u8 battery_status; /*
347 * BIT 0: battery module missing
348 * BIT 1: VBAD
349 * BIT 2: temperature high
350 * BIT 3: battery pack missing
351 * BIT 4,5:
352 * 00 - charge complete
353 * 01 - fast charge in progress
354 * 10 - fast charge fail
355 * 11 - undefined
356 * Bit 6: counter > 1000
357 * Bit 7: Undefined
358 */
359 u8 dec_fault_bus_info;
360 } __attribute__ ((packed)) mega_adp_info;
361
362
363 typedef struct {
364 u8 num_ldrv; /* Number of logical drives configured */
365 u8 rsvd[3];
366 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD];
367 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD];
368 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD];
369 } __attribute__ ((packed)) mega_ldrv_info;
370
371 typedef struct {
372 u8 pdrv_state[MAX_PHYSICAL_DRIVES];
373 u8 rsvd;
374 } __attribute__ ((packed)) mega_pdrv_info;
375
376 /* RAID inquiry: Mailbox command 0x05*/
377 typedef struct {
378 mega_adp_info adapter_info;
379 mega_ldrv_info logdrv_info;
380 mega_pdrv_info pdrv_info;
381 } __attribute__ ((packed)) mraid_inquiry;
382
383
384 /* RAID extended inquiry: Mailbox command 0x04*/
385 typedef struct {
386 mraid_inquiry raid_inq;
387 u16 phys_drv_format[MAX_CHANNELS];
388 u8 stack_attn;
389 u8 modem_status;
390 u8 rsvd[2];
391 } __attribute__ ((packed)) mraid_ext_inquiry;
392
393
394 typedef struct {
395 u8 channel;
396 u8 target;
397 }__attribute__ ((packed)) adp_device;
398
399 typedef struct {
400 u32 start_blk; /* starting block */
401 u32 num_blks; /* # of blocks */
402 adp_device device[MAX_ROW_SIZE_40LD];
403 }__attribute__ ((packed)) adp_span_40ld;
404
405 typedef struct {
406 u32 start_blk; /* starting block */
407 u32 num_blks; /* # of blocks */
408 adp_device device[MAX_ROW_SIZE_8LD];
409 }__attribute__ ((packed)) adp_span_8ld;
410
411 typedef struct {
412 u8 span_depth; /* Total # of spans */
413 u8 level; /* RAID level */
414 u8 read_ahead; /* read ahead, no read ahead, adaptive read
415 ahead */
416 u8 stripe_sz; /* Encoded stripe size */
417 u8 status; /* Status of the logical drive */
418 u8 write_mode; /* write mode, write_through/write_back */
419 u8 direct_io; /* direct io or through cache */
420 u8 row_size; /* Number of stripes in a row */
421 } __attribute__ ((packed)) logdrv_param;
422
423 typedef struct {
424 logdrv_param lparam;
425 adp_span_40ld span[MAX_SPAN_DEPTH];
426 }__attribute__ ((packed)) logdrv_40ld;
427
428 typedef struct {
429 logdrv_param lparam;
430 adp_span_8ld span[MAX_SPAN_DEPTH];
431 }__attribute__ ((packed)) logdrv_8ld;
432
433 typedef struct {
434 u8 type; /* Type of the device */
435 u8 cur_status; /* current status of the device */
436 u8 tag_depth; /* Level of tagging */
437 u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */
438 u32 size; /* configurable size in terms of 512 byte
439 blocks */
440 }__attribute__ ((packed)) phys_drv;
441
442 typedef struct {
443 u8 nlog_drives; /* number of logical drives */
444 u8 resvd[3];
445 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD];
446 phys_drv pdrv[MAX_PHYSICAL_DRIVES];
447 }__attribute__ ((packed)) disk_array_40ld;
448
449 typedef struct {
450 u8 nlog_drives; /* number of logical drives */
451 u8 resvd[3];
452 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD];
453 phys_drv pdrv[MAX_PHYSICAL_DRIVES];
454 }__attribute__ ((packed)) disk_array_8ld;
455
456
457 /*
458 * User ioctl structure.
459 * This structure will be used for Traditional Method ioctl interface
460 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the
461 * Driver ioctls.
462 * The Driver ioctl interface handles the commands at the driver level,
463 * without being sent to the card.
464 */
465 /* system call imposed limit. Change accordingly */
466 #define IOCTL_MAX_DATALEN 4096
467
468 struct uioctl_t {
469 u32 inlen;
470 u32 outlen;
471 union {
472 u8 fca[16];
473 struct {
474 u8 opcode;
475 u8 subopcode;
476 u16 adapno;
477 #if BITS_PER_LONG == 32
478 u8 *buffer;
479 u8 pad[4];
480 #endif
481 #if BITS_PER_LONG == 64
482 u8 *buffer;
483 #endif
484 u32 length;
485 } __attribute__ ((packed)) fcs;
486 } __attribute__ ((packed)) ui;
487 u8 mbox[18]; /* 16 bytes + 2 status bytes */
488 mega_passthru pthru;
489 #if BITS_PER_LONG == 32
490 char __user *data; /* buffer <= 4096 for 0x80 commands */
491 char pad[4];
492 #endif
493 #if BITS_PER_LONG == 64
494 char __user *data;
495 #endif
496 } __attribute__ ((packed));
497
498 /*
499 * struct mcontroller is used to pass information about the controllers in the
500 * system. Its up to the application how to use the information. We are passing
501 * as much info about the cards as possible and useful. Before issuing the
502 * call to find information about the cards, the application needs to issue a
503 * ioctl first to find out the number of controllers in the system.
504 */
505 #define MAX_CONTROLLERS 32
506
507 struct mcontroller {
508 u64 base;
509 u8 irq;
510 u8 numldrv;
511 u8 pcibus;
512 u16 pcidev;
513 u8 pcifun;
514 u16 pciid;
515 u16 pcivendor;
516 u8 pcislot;
517 u32 uid;
518 };
519
520 /*
521 * mailbox structure used for internal commands
522 */
523 typedef struct {
524 u8 cmd;
525 u8 cmdid;
526 u8 opcode;
527 u8 subopcode;
528 u32 lba;
529 u32 xferaddr;
530 u8 logdrv;
531 u8 rsvd[3];
532 u8 numstatus;
533 u8 status;
534 } __attribute__ ((packed)) megacmd_t;
535
536 /*
537 * Defines for Driver IOCTL interface
538 */
539 #define MEGAIOC_MAGIC 'm'
540
541 #define MEGAIOC_QNADAP 'm' /* Query # of adapters */
542 #define MEGAIOC_QDRVRVER 'e' /* Query driver version */
543 #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */
544 #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) )
545 #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 )
546
547 /*
548 * Definition for the new ioctl interface (NIT)
549 */
550
551 /*
552 * Vendor specific Group-7 commands
553 */
554 #define VENDOR_SPECIFIC_COMMANDS 0xE0
555 #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01
556
557 /*
558 * The ioctl command. No other command shall be used for this interface
559 */
560 #define USCSICMD VENDOR_SPECIFIC_COMMANDS
561
562 /*
563 * Data direction flags
564 */
565 #define UIOC_RD 0x00001
566 #define UIOC_WR 0x00002
567
568 /*
569 * ioctl opcodes
570 */
571 #define MBOX_CMD 0x00000 /* DCMD or passthru command */
572 #define GET_DRIVER_VER 0x10000 /* Get driver version */
573 #define GET_N_ADAP 0x20000 /* Get number of adapters */
574 #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */
575 #define GET_CAP 0x40000 /* Get ioctl capabilities */
576 #define GET_STATS 0x50000 /* Get statistics, including error info */
577
578
579 /*
580 * The ioctl structure.
581 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and
582 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer.
583 */
584 typedef struct {
585 char signature[8]; /* Must contain "MEGANIT" */
586 u32 opcode; /* opcode for the command */
587 u32 adapno; /* adapter number */
588 union {
589 u8 __raw_mbox[18];
590 void __user *__uaddr; /* xferaddr for non-mbox cmds */
591 }__ua;
592
593 #define uioc_rmbox __ua.__raw_mbox
594 #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0]))
595 #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0]))
596 #define uioc_uaddr __ua.__uaddr
597
598 u32 xferlen; /* xferlen for DCMD and non-mbox
599 commands */
600 u32 flags; /* data direction flags */
601 }nitioctl_t;
602
603
604 /*
605 * I/O statistics for some applications like SNMP agent. The caller must
606 * provide the number of logical drives for which status should be reported.
607 */
608 typedef struct {
609 int num_ldrv; /* Number for logical drives for which the
610 status should be reported. */
611 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for
612 each logical drive */
613 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
614 read for each logical
615 drive */
616 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes
617 for each logical
618 drive */
619 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
620 writes for each
621 logical drive */
622 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read
623 errors for each
624 logical drive */
625 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write
626 errors for each
627 logical drive */
628 }megastat_t;
629
630
631 struct private_bios_data {
632 u8 geometry:4; /*
633 * bits 0-3 - BIOS geometry
634 * 0x0001 - 1GB
635 * 0x0010 - 2GB
636 * 0x1000 - 8GB
637 * Others values are invalid
638 */
639 u8 unused:4; /* bits 4-7 are unused */
640 u8 boot_drv; /*
641 * logical drive set as boot drive
642 * 0..7 - for 8LD cards
643 * 0..39 - for 40LD cards
644 */
645 u8 rsvd[12];
646 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */
647 } __attribute__ ((packed));
648
649
650
651
652 /*
653 * Mailbox and firmware commands and subopcodes used in this driver.
654 */
655
656 #define MEGA_MBOXCMD_LREAD 0x01
657 #define MEGA_MBOXCMD_LWRITE 0x02
658 #define MEGA_MBOXCMD_PASSTHRU 0x03
659 #define MEGA_MBOXCMD_ADPEXTINQ 0x04
660 #define MEGA_MBOXCMD_ADAPTERINQ 0x05
661 #define MEGA_MBOXCMD_LREAD64 0xA7
662 #define MEGA_MBOXCMD_LWRITE64 0xA8
663 #define MEGA_MBOXCMD_PASSTHRU64 0xC3
664 #define MEGA_MBOXCMD_EXTPTHRU 0xE3
665
666 #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */
667 #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */
668
669 #define FC_NEW_CONFIG 0xA1
670 #define NC_SUBOP_PRODUCT_INFO 0x0E
671 #define NC_SUBOP_ENQUIRY3 0x0F
672 #define ENQ3_GET_SOLICITED_FULL 0x02
673 #define OP_DCMD_READ_CONFIG 0x04
674 #define NEW_READ_CONFIG_8LD 0x67
675 #define READ_CONFIG_8LD 0x07
676 #define FLUSH_ADAPTER 0x0A
677 #define FLUSH_SYSTEM 0xFE
678
679 /*
680 * Command for random deletion of logical drives
681 */
682 #define FC_DEL_LOGDRV 0xA4 /* f/w command */
683 #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */
684 #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */
685 #define OP_DEL_LOGDRV 0x1C /* delete logical drive */
686
687 /*
688 * BIOS commands
689 */
690 #define IS_BIOS_ENABLED 0x62
691 #define GET_BIOS 0x01
692 #define CHNL_CLASS 0xA9
693 #define GET_CHNL_CLASS 0x00
694 #define SET_CHNL_CLASS 0x01
695 #define CH_RAID 0x01
696 #define CH_SCSI 0x00
697 #define BIOS_PVT_DATA 0x40
698 #define GET_BIOS_PVT_DATA 0x00
699
700
701 /*
702 * Commands to support clustering
703 */
704 #define MEGA_GET_TARGET_ID 0x7D
705 #define MEGA_CLUSTER_OP 0x70
706 #define MEGA_GET_CLUSTER_MODE 0x02
707 #define MEGA_CLUSTER_CMD 0x6E
708 #define MEGA_RESERVE_LD 0x01
709 #define MEGA_RELEASE_LD 0x02
710 #define MEGA_RESET_RESERVATIONS 0x03
711 #define MEGA_RESERVATION_STATUS 0x04
712 #define MEGA_RESERVE_PD 0x05
713 #define MEGA_RELEASE_PD 0x06
714
715
716 /*
717 * Module battery status
718 */
719 #define MEGA_BATT_MODULE_MISSING 0x01
720 #define MEGA_BATT_LOW_VOLTAGE 0x02
721 #define MEGA_BATT_TEMP_HIGH 0x04
722 #define MEGA_BATT_PACK_MISSING 0x08
723 #define MEGA_BATT_CHARGE_MASK 0x30
724 #define MEGA_BATT_CHARGE_DONE 0x00
725 #define MEGA_BATT_CHARGE_INPROG 0x10
726 #define MEGA_BATT_CHARGE_FAIL 0x20
727 #define MEGA_BATT_CYCLES_EXCEEDED 0x40
728
729 /*
730 * Physical drive states.
731 */
732 #define PDRV_UNCNF 0
733 #define PDRV_ONLINE 3
734 #define PDRV_FAILED 4
735 #define PDRV_RBLD 5
736 #define PDRV_HOTSPARE 6
737
738
739 /*
740 * Raid logical drive states.
741 */
742 #define RDRV_OFFLINE 0
743 #define RDRV_DEGRADED 1
744 #define RDRV_OPTIMAL 2
745 #define RDRV_DELETED 3
746
747 /*
748 * Read, write and cache policies
749 */
750 #define NO_READ_AHEAD 0
751 #define READ_AHEAD 1
752 #define ADAP_READ_AHEAD 2
753 #define WRMODE_WRITE_THRU 0
754 #define WRMODE_WRITE_BACK 1
755 #define CACHED_IO 0
756 #define DIRECT_IO 1
757
758
759 #define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp))
760
761 /*
762 * Each controller's soft state
763 */
764 typedef struct {
765 int this_id; /* our id, may set to different than 7 if
766 clustering is available */
767 u32 flag;
768
769 unsigned long base;
770 void __iomem *mmio_base;
771
772 /* mbox64 with mbox not aligned on 16-byte boundary */
773 mbox64_t *una_mbox64;
774 dma_addr_t una_mbox64_dma;
775
776 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */
777 volatile mbox_t *mbox; /* ptr to standard mailbox */
778 dma_addr_t mbox_dma;
779
780 struct pci_dev *dev;
781
782 struct list_head free_list;
783 struct list_head pending_list;
784 struct list_head completed_list;
785
786 struct Scsi_Host *host;
787
788 #define MEGA_BUFFER_SIZE (2*1024)
789 u8 *mega_buffer;
790 dma_addr_t buf_dma_handle;
791
792 mega_product_info product_info;
793
794 u8 max_cmds;
795 scb_t *scb_list;
796
797 atomic_t pend_cmds; /* maintain a counter for pending
798 commands in firmware */
799
800 #if MEGA_HAVE_STATS
801 u32 nreads[MAX_LOGICAL_DRIVES_40LD];
802 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD];
803 u32 nwrites[MAX_LOGICAL_DRIVES_40LD];
804 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD];
805 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD];
806 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD];
807 #endif
808
809 /* Host adapter parameters */
810 u8 numldrv;
811 u8 fw_version[7];
812 u8 bios_version[7];
813
814 #ifdef CONFIG_PROC_FS
815 struct proc_dir_entry *controller_proc_dir_entry;
816 struct proc_dir_entry *proc_read;
817 struct proc_dir_entry *proc_stat;
818 struct proc_dir_entry *proc_mbox;
819
820 #if MEGA_HAVE_ENH_PROC
821 struct proc_dir_entry *proc_rr;
822 struct proc_dir_entry *proc_battery;
823 #define MAX_PROC_CHANNELS 4
824 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
825 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
826 #endif
827
828 #endif
829
830 int has_64bit_addr; /* are we using 64-bit addressing */
831 int support_ext_cdb;
832 int boot_ldrv_enabled;
833 int boot_ldrv;
834 int boot_pdrv_enabled; /* boot from physical drive */
835 int boot_pdrv_ch; /* boot physical drive channel */
836 int boot_pdrv_tgt; /* boot physical drive target */
837
838
839 int support_random_del; /* Do we support random deletion of
840 logdrvs */
841 int read_ldidmap; /* set after logical drive deltion. The
842 logical drive number must be read from the
843 map */
844 atomic_t quiescent; /* a stage reached when delete logical
845 drive needs to be done. Stop
846 sending requests to the hba till
847 delete operation is completed */
848 spinlock_t lock;
849
850 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on
851 what channels. */
852 int mega_ch_class;
853
854 u8 sglen; /* f/w supported scatter-gather list length */
855
856 scb_t int_scb;
857 struct mutex int_mtx; /* To synchronize the internal
858 commands */
859 int int_status; /* status of internal cmd */
860 struct completion int_waitq; /* wait queue for internal
861 cmds */
862
863 int has_cluster; /* cluster support on this HBA */
864 }adapter_t;
865
866
867 struct mega_hbas {
868 int is_bios_enabled;
869 adapter_t *hostdata_addr;
870 };
871
872
873 /*
874 * For state flag. Do not use LSB(8 bits) which are
875 * reserved for storing info about channels.
876 */
877 #define IN_ABORT 0x80000000L
878 #define IN_RESET 0x40000000L
879 #define BOARD_MEMMAP 0x20000000L
880 #define BOARD_IOMAP 0x10000000L
881 #define BOARD_40LD 0x08000000L
882 #define BOARD_64BIT 0x04000000L
883
884 #define INTR_VALID 0x40
885
886 #define PCI_CONF_AMISIG 0xa0
887 #define PCI_CONF_AMISIG64 0xa4
888
889
890 #define MEGA_DMA_TYPE_NONE 0xFFFF
891 #define MEGA_BULK_DATA 0x0001
892 #define MEGA_SGLIST 0x0002
893
894 /*
895 * Parameters for the io-mapped controllers
896 */
897
898 /* I/O Port offsets */
899 #define CMD_PORT 0x00
900 #define ACK_PORT 0x00
901 #define TOGGLE_PORT 0x01
902 #define INTR_PORT 0x0a
903
904 #define MBOX_BUSY_PORT 0x00
905 #define MBOX_PORT0 0x04
906 #define MBOX_PORT1 0x05
907 #define MBOX_PORT2 0x06
908 #define MBOX_PORT3 0x07
909 #define ENABLE_MBOX_REGION 0x0B
910
911 /* I/O Port Values */
912 #define ISSUE_BYTE 0x10
913 #define ACK_BYTE 0x08
914 #define ENABLE_INTR_BYTE 0xc0
915 #define DISABLE_INTR_BYTE 0x00
916 #define VALID_INTR_BYTE 0x40
917 #define MBOX_BUSY_BYTE 0x10
918 #define ENABLE_MBOX_BYTE 0x00
919
920
921 /* Setup some port macros here */
922 #define issue_command(adapter) \
923 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT)
924
925 #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT)
926
927 #define set_irq_state(adapter, value) \
928 outb_p((value), (adapter)->base + INTR_PORT)
929
930 #define irq_ack(adapter) \
931 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT)
932
933 #define irq_enable(adapter) \
934 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
935
936 #define irq_disable(adapter) \
937 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
938
939
940 /*
941 * This is our SYSDEP area. All kernel specific detail should be placed here -
942 * as much as possible
943 */
944
945 /*
946 * End of SYSDEP area
947 */
948
949 const char *megaraid_info (struct Scsi_Host *);
950
951 static int mega_query_adapter(adapter_t *);
952 static int issue_scb(adapter_t *, scb_t *);
953 static int mega_setup_mailbox(adapter_t *);
954
955 static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *);
956 static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
957 static void __mega_runpendq(adapter_t *);
958 static int issue_scb_block(adapter_t *, u_char *);
959
960 static irqreturn_t megaraid_isr_memmapped(int, void *);
961 static irqreturn_t megaraid_isr_iomapped(int, void *);
962
963 static void mega_free_scb(adapter_t *, scb_t *);
964
965 static int megaraid_abort(Scsi_Cmnd *);
966 static int megaraid_reset(Scsi_Cmnd *);
967 static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
968 static int megaraid_biosparam(struct scsi_device *, struct block_device *,
969 sector_t, int []);
970
971 static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
972 u32 *buffer, u32 *length);
973 static int __mega_busywait_mbox (adapter_t *);
974 static void mega_rundoneq (adapter_t *);
975 static void mega_cmd_done(adapter_t *, u8 [], int, int);
976 static inline void mega_free_sgl (adapter_t *adapter);
977 static void mega_8_to_40ld (mraid_inquiry *inquiry,
978 mega_inquiry3 *enquiry3, mega_product_info *);
979
980 static int megadev_open (struct inode *, struct file *);
981 static int megadev_ioctl (struct file *, unsigned int, unsigned long);
982 static int mega_m_to_n(void __user *, nitioctl_t *);
983 static int mega_n_to_m(void __user *, megacmd_t *);
984
985 static int mega_init_scb (adapter_t *);
986
987 static int mega_is_bios_enabled (adapter_t *);
988
989 #ifdef CONFIG_PROC_FS
990 static void mega_create_proc_entry(int, struct proc_dir_entry *);
991 static int mega_adapinq(adapter_t *, dma_addr_t);
992 static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
993 #endif
994
995 static int mega_support_ext_cdb(adapter_t *);
996 static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
997 Scsi_Cmnd *, int, int);
998 static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
999 scb_t *, Scsi_Cmnd *, int, int);
1000 static void mega_enum_raid_scsi(adapter_t *);
1001 static void mega_get_boot_drv(adapter_t *);
1002 static int mega_support_random_del(adapter_t *);
1003 static int mega_del_logdrv(adapter_t *, int);
1004 static int mega_do_del_logdrv(adapter_t *, int);
1005 static void mega_get_max_sgl(adapter_t *);
1006 static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *);
1007 static int mega_support_cluster(adapter_t *);
1008 #endif
1009
1010 /* vi: set ts=8 sw=8 tw=78: */
Luiz kernel work