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[mirror_ubuntu-artful-kernel.git] / drivers / scsi / megaraid.h
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 * Comand 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 #ifndef PCI_VENDOR_ID_LSI_LOGIC
49 #define PCI_VENDOR_ID_LSI_LOGIC 0x1000
50 #endif
51
52 #ifndef PCI_VENDOR_ID_AMI
53 #define PCI_VENDOR_ID_AMI 0x101E
54 #endif
55
56 #ifndef PCI_VENDOR_ID_DELL
57 #define PCI_VENDOR_ID_DELL 0x1028
58 #endif
59
60 #ifndef PCI_VENDOR_ID_INTEL
61 #define PCI_VENDOR_ID_INTEL 0x8086
62 #endif
63
64 #ifndef PCI_DEVICE_ID_AMI_MEGARAID
65 #define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
66 #endif
67
68 #ifndef PCI_DEVICE_ID_AMI_MEGARAID2
69 #define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060
70 #endif
71
72 #ifndef PCI_DEVICE_ID_AMI_MEGARAID3
73 #define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960
74 #endif
75
76 #define PCI_DEVICE_ID_DISCOVERY 0x000E
77 #define PCI_DEVICE_ID_PERC4_DI 0x000F
78 #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407
79
80 /* Sub-System Vendor IDs */
81 #define AMI_SUBSYS_VID 0x101E
82 #define DELL_SUBSYS_VID 0x1028
83 #define HP_SUBSYS_VID 0x103C
84 #define LSI_SUBSYS_VID 0x1000
85 #define INTEL_SUBSYS_VID 0x8086
86
87 #define HBA_SIGNATURE 0x3344
88 #define HBA_SIGNATURE_471 0xCCCC
89 #define HBA_SIGNATURE_64BIT 0x0299
90
91 #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for
92 mailbox to be free */
93 #define DEFAULT_INITIATOR_ID 7
94
95 #define MAX_SGLIST 64 /* max supported in f/w */
96 #define MIN_SGLIST 26 /* guaranteed to support these many */
97 #define MAX_COMMANDS 126
98 #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS
99 is less than max commands
100 supported by any f/w */
101
102 #define MAX_CDB_LEN 10
103 #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */
104
105 #define DEF_CMD_PER_LUN 63
106 #define MAX_CMD_PER_LUN MAX_COMMANDS
107 #define MAX_FIRMWARE_STATUS 46
108 #define MAX_XFER_PER_CMD (64*1024)
109 #define MAX_SECTORS_PER_IO 128
110
111 #define MAX_LOGICAL_DRIVES_40LD 40
112 #define FC_MAX_PHYSICAL_DEVICES 256
113 #define MAX_LOGICAL_DRIVES_8LD 8
114 #define MAX_CHANNELS 5
115 #define MAX_TARGET 15
116 #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET
117 #define MAX_ROW_SIZE_40LD 32
118 #define MAX_ROW_SIZE_8LD 8
119 #define MAX_SPAN_DEPTH 8
120
121 #define NVIRT_CHAN 4 /* # of virtual channels to represent
122 up to 60 logical drives */
123 struct mbox_out {
124 /* 0x0 */ u8 cmd;
125 /* 0x1 */ u8 cmdid;
126 /* 0x2 */ u16 numsectors;
127 /* 0x4 */ u32 lba;
128 /* 0x8 */ u32 xferaddr;
129 /* 0xC */ u8 logdrv;
130 /* 0xD */ u8 numsgelements;
131 /* 0xE */ u8 resvd;
132 } __attribute__ ((packed));
133
134 struct mbox_in {
135 /* 0xF */ volatile u8 busy;
136 /* 0x10 */ volatile u8 numstatus;
137 /* 0x11 */ volatile u8 status;
138 /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS];
139 volatile u8 poll;
140 volatile u8 ack;
141 } __attribute__ ((packed));
142
143 typedef struct {
144 struct mbox_out m_out;
145 struct mbox_in m_in;
146 } __attribute__ ((packed)) mbox_t;
147
148 typedef struct {
149 u32 xfer_segment_lo;
150 u32 xfer_segment_hi;
151 mbox_t mbox;
152 } __attribute__ ((packed)) mbox64_t;
153
154
155 /*
156 * Passthru definitions
157 */
158 #define MAX_REQ_SENSE_LEN 0x20
159
160 typedef struct {
161 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
162 u8 ars:1;
163 u8 reserved:3;
164 u8 islogical:1;
165 u8 logdrv; /* if islogical == 1 */
166 u8 channel; /* if islogical == 0 */
167 u8 target; /* if islogical == 0 */
168 u8 queuetag; /* unused */
169 u8 queueaction; /* unused */
170 u8 cdb[MAX_CDB_LEN];
171 u8 cdblen;
172 u8 reqsenselen;
173 u8 reqsensearea[MAX_REQ_SENSE_LEN];
174 u8 numsgelements;
175 u8 scsistatus;
176 u32 dataxferaddr;
177 u32 dataxferlen;
178 } __attribute__ ((packed)) mega_passthru;
179
180
181 /*
182 * Extended passthru: support CDB > 10 bytes
183 */
184 typedef struct {
185 u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
186 u8 ars:1;
187 u8 rsvd1:1;
188 u8 cd_rom:1;
189 u8 rsvd2:1;
190 u8 islogical:1;
191 u8 logdrv; /* if islogical == 1 */
192 u8 channel; /* if islogical == 0 */
193 u8 target; /* if islogical == 0 */
194 u8 queuetag; /* unused */
195 u8 queueaction; /* unused */
196 u8 cdblen;
197 u8 rsvd3;
198 u8 cdb[MAX_EXT_CDB_LEN];
199 u8 numsgelements;
200 u8 status;
201 u8 reqsenselen;
202 u8 reqsensearea[MAX_REQ_SENSE_LEN];
203 u8 rsvd4;
204 u32 dataxferaddr;
205 u32 dataxferlen;
206 } __attribute__ ((packed)) mega_ext_passthru;
207
208 typedef struct {
209 u64 address;
210 u32 length;
211 } __attribute__ ((packed)) mega_sgl64;
212
213 typedef struct {
214 u32 address;
215 u32 length;
216 } __attribute__ ((packed)) mega_sglist;
217
218
219 /* Queued command data */
220 typedef struct {
221 int idx;
222 u32 state;
223 struct list_head list;
224 u8 raw_mbox[66];
225 u32 dma_type;
226 u32 dma_direction;
227
228 Scsi_Cmnd *cmd;
229 dma_addr_t dma_h_bulkdata;
230 dma_addr_t dma_h_sgdata;
231
232 mega_sglist *sgl;
233 mega_sgl64 *sgl64;
234 dma_addr_t sgl_dma_addr;
235
236 mega_passthru *pthru;
237 dma_addr_t pthru_dma_addr;
238 mega_ext_passthru *epthru;
239 dma_addr_t epthru_dma_addr;
240 } scb_t;
241
242 /*
243 * Flags to follow the scb as it transitions between various stages
244 */
245 #define SCB_FREE 0x0000 /* on the free list */
246 #define SCB_ACTIVE 0x0001 /* off the free list */
247 #define SCB_PENDQ 0x0002 /* on the pending queue */
248 #define SCB_ISSUED 0x0004 /* issued - owner f/w */
249 #define SCB_ABORT 0x0008 /* Got an abort for this one */
250 #define SCB_RESET 0x0010 /* Got a reset for this one */
251
252 /*
253 * Utilities declare this strcture size as 1024 bytes. So more fields can
254 * be added in future.
255 */
256 typedef struct {
257 u32 data_size; /* current size in bytes (not including resvd) */
258
259 u32 config_signature;
260 /* Current value is 0x00282008
261 * 0x28=MAX_LOGICAL_DRIVES,
262 * 0x20=Number of stripes and
263 * 0x08=Number of spans */
264
265 u8 fw_version[16]; /* printable ASCI string */
266 u8 bios_version[16]; /* printable ASCI string */
267 u8 product_name[80]; /* printable ASCI string */
268
269 u8 max_commands; /* Max. concurrent commands supported */
270 u8 nchannels; /* Number of SCSI Channels detected */
271 u8 fc_loop_present; /* Number of Fibre Loops detected */
272 u8 mem_type; /* EDO, FPM, SDRAM etc */
273
274 u32 signature;
275 u16 dram_size; /* In terms of MB */
276 u16 subsysid;
277
278 u16 subsysvid;
279 u8 notify_counters;
280 u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */
281 } __attribute__ ((packed)) mega_product_info;
282
283 struct notify {
284 u32 global_counter; /* Any change increments this counter */
285
286 u8 param_counter; /* Indicates any params changed */
287 u8 param_id; /* Param modified - defined below */
288 u16 param_val; /* New val of last param modified */
289
290 u8 write_config_counter; /* write config occurred */
291 u8 write_config_rsvd[3];
292
293 u8 ldrv_op_counter; /* Indicates ldrv op started/completed */
294 u8 ldrv_opid; /* ldrv num */
295 u8 ldrv_opcmd; /* ldrv operation - defined below */
296 u8 ldrv_opstatus; /* status of the operation */
297
298 u8 ldrv_state_counter; /* Indicates change of ldrv state */
299 u8 ldrv_state_id; /* ldrv num */
300 u8 ldrv_state_new; /* New state */
301 u8 ldrv_state_old; /* old state */
302
303 u8 pdrv_state_counter; /* Indicates change of ldrv state */
304 u8 pdrv_state_id; /* pdrv id */
305 u8 pdrv_state_new; /* New state */
306 u8 pdrv_state_old; /* old state */
307
308 u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */
309 u8 pdrv_fmt_id; /* pdrv id */
310 u8 pdrv_fmt_val; /* format started/over */
311 u8 pdrv_fmt_rsvd;
312
313 u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */
314 u8 targ_xfer_id; /* pdrv Id */
315 u8 targ_xfer_val; /* new Xfer params of last pdrv */
316 u8 targ_xfer_rsvd;
317
318 u8 fcloop_id_chg_counter; /* Indicates loopid changed */
319 u8 fcloopid_pdrvid; /* pdrv id */
320 u8 fcloop_id0; /* loopid on fc loop 0 */
321 u8 fcloop_id1; /* loopid on fc loop 1 */
322
323 u8 fcloop_state_counter; /* Indicates loop state changed */
324 u8 fcloop_state0; /* state of fc loop 0 */
325 u8 fcloop_state1; /* state of fc loop 1 */
326 u8 fcloop_state_rsvd;
327 } __attribute__ ((packed));
328
329 #define MAX_NOTIFY_SIZE 0x80
330 #define CUR_NOTIFY_SIZE sizeof(struct notify)
331
332 typedef struct {
333 u32 data_size; /* current size in bytes (not including resvd) */
334
335 struct notify notify;
336
337 u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
338
339 u8 rebuild_rate; /* Rebuild rate (0% - 100%) */
340 u8 cache_flush_interval; /* In terms of Seconds */
341 u8 sense_alert;
342 u8 drive_insert_count; /* drive insertion count */
343
344 u8 battery_status;
345 u8 num_ldrv; /* No. of Log Drives configured */
346 u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of
347 reconstruct */
348 u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv
349 Status */
350
351 u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */
352 u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD];
353 u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */
354 u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */
355 u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16];
356
357 u8 targ_xfer[80]; /* phys device transfer rate */
358 u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */
359 } __attribute__ ((packed)) mega_inquiry3;
360
361
362 /* Structures */
363 typedef struct {
364 u8 max_commands; /* Max concurrent commands supported */
365 u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */
366 u8 max_targ_per_chan; /* Max targ per channel */
367 u8 nchannels; /* Number of channels on HBA */
368 u8 fw_version[4]; /* Firmware version */
369 u16 age_of_flash; /* Number of times FW has been flashed */
370 u8 chip_set_value; /* Contents of 0xC0000832 */
371 u8 dram_size; /* In MB */
372 u8 cache_flush_interval; /* in seconds */
373 u8 bios_version[4];
374 u8 board_type;
375 u8 sense_alert;
376 u8 write_config_count; /* Increase with every configuration
377 change */
378 u8 drive_inserted_count; /* Increase with every drive inserted
379 */
380 u8 inserted_drive; /* Channel:Id of inserted drive */
381 u8 battery_status; /*
382 * BIT 0: battery module missing
383 * BIT 1: VBAD
384 * BIT 2: temprature high
385 * BIT 3: battery pack missing
386 * BIT 4,5:
387 * 00 - charge complete
388 * 01 - fast charge in progress
389 * 10 - fast charge fail
390 * 11 - undefined
391 * Bit 6: counter > 1000
392 * Bit 7: Undefined
393 */
394 u8 dec_fault_bus_info;
395 } __attribute__ ((packed)) mega_adp_info;
396
397
398 typedef struct {
399 u8 num_ldrv; /* Number of logical drives configured */
400 u8 rsvd[3];
401 u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD];
402 u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD];
403 u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD];
404 } __attribute__ ((packed)) mega_ldrv_info;
405
406 typedef struct {
407 u8 pdrv_state[MAX_PHYSICAL_DRIVES];
408 u8 rsvd;
409 } __attribute__ ((packed)) mega_pdrv_info;
410
411 /* RAID inquiry: Mailbox command 0x05*/
412 typedef struct {
413 mega_adp_info adapter_info;
414 mega_ldrv_info logdrv_info;
415 mega_pdrv_info pdrv_info;
416 } __attribute__ ((packed)) mraid_inquiry;
417
418
419 /* RAID extended inquiry: Mailbox command 0x04*/
420 typedef struct {
421 mraid_inquiry raid_inq;
422 u16 phys_drv_format[MAX_CHANNELS];
423 u8 stack_attn;
424 u8 modem_status;
425 u8 rsvd[2];
426 } __attribute__ ((packed)) mraid_ext_inquiry;
427
428
429 typedef struct {
430 u8 channel;
431 u8 target;
432 }__attribute__ ((packed)) adp_device;
433
434 typedef struct {
435 u32 start_blk; /* starting block */
436 u32 num_blks; /* # of blocks */
437 adp_device device[MAX_ROW_SIZE_40LD];
438 }__attribute__ ((packed)) adp_span_40ld;
439
440 typedef struct {
441 u32 start_blk; /* starting block */
442 u32 num_blks; /* # of blocks */
443 adp_device device[MAX_ROW_SIZE_8LD];
444 }__attribute__ ((packed)) adp_span_8ld;
445
446 typedef struct {
447 u8 span_depth; /* Total # of spans */
448 u8 level; /* RAID level */
449 u8 read_ahead; /* read ahead, no read ahead, adaptive read
450 ahead */
451 u8 stripe_sz; /* Encoded stripe size */
452 u8 status; /* Status of the logical drive */
453 u8 write_mode; /* write mode, write_through/write_back */
454 u8 direct_io; /* direct io or through cache */
455 u8 row_size; /* Number of stripes in a row */
456 } __attribute__ ((packed)) logdrv_param;
457
458 typedef struct {
459 logdrv_param lparam;
460 adp_span_40ld span[MAX_SPAN_DEPTH];
461 }__attribute__ ((packed)) logdrv_40ld;
462
463 typedef struct {
464 logdrv_param lparam;
465 adp_span_8ld span[MAX_SPAN_DEPTH];
466 }__attribute__ ((packed)) logdrv_8ld;
467
468 typedef struct {
469 u8 type; /* Type of the device */
470 u8 cur_status; /* current status of the device */
471 u8 tag_depth; /* Level of tagging */
472 u8 sync_neg; /* sync negotiation - ENABLE or DISBALE */
473 u32 size; /* configurable size in terms of 512 byte
474 blocks */
475 }__attribute__ ((packed)) phys_drv;
476
477 typedef struct {
478 u8 nlog_drives; /* number of logical drives */
479 u8 resvd[3];
480 logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD];
481 phys_drv pdrv[MAX_PHYSICAL_DRIVES];
482 }__attribute__ ((packed)) disk_array_40ld;
483
484 typedef struct {
485 u8 nlog_drives; /* number of logical drives */
486 u8 resvd[3];
487 logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD];
488 phys_drv pdrv[MAX_PHYSICAL_DRIVES];
489 }__attribute__ ((packed)) disk_array_8ld;
490
491
492 /*
493 * User ioctl structure.
494 * This structure will be used for Traditional Method ioctl interface
495 * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the
496 * Driver ioctls.
497 * The Driver ioctl interface handles the commands at the driver level,
498 * without being sent to the card.
499 */
500 /* system call imposed limit. Change accordingly */
501 #define IOCTL_MAX_DATALEN 4096
502
503 struct uioctl_t {
504 u32 inlen;
505 u32 outlen;
506 union {
507 u8 fca[16];
508 struct {
509 u8 opcode;
510 u8 subopcode;
511 u16 adapno;
512 #if BITS_PER_LONG == 32
513 u8 *buffer;
514 u8 pad[4];
515 #endif
516 #if BITS_PER_LONG == 64
517 u8 *buffer;
518 #endif
519 u32 length;
520 } __attribute__ ((packed)) fcs;
521 } __attribute__ ((packed)) ui;
522 u8 mbox[18]; /* 16 bytes + 2 status bytes */
523 mega_passthru pthru;
524 #if BITS_PER_LONG == 32
525 char __user *data; /* buffer <= 4096 for 0x80 commands */
526 char pad[4];
527 #endif
528 #if BITS_PER_LONG == 64
529 char __user *data;
530 #endif
531 } __attribute__ ((packed));
532
533 /*
534 * struct mcontroller is used to pass information about the controllers in the
535 * system. Its upto the application how to use the information. We are passing
536 * as much info about the cards as possible and useful. Before issuing the
537 * call to find information about the cards, the applicaiton needs to issue a
538 * ioctl first to find out the number of controllers in the system.
539 */
540 #define MAX_CONTROLLERS 32
541
542 struct mcontroller {
543 u64 base;
544 u8 irq;
545 u8 numldrv;
546 u8 pcibus;
547 u16 pcidev;
548 u8 pcifun;
549 u16 pciid;
550 u16 pcivendor;
551 u8 pcislot;
552 u32 uid;
553 };
554
555 /*
556 * mailbox structure used for internal commands
557 */
558 typedef struct {
559 u8 cmd;
560 u8 cmdid;
561 u8 opcode;
562 u8 subopcode;
563 u32 lba;
564 u32 xferaddr;
565 u8 logdrv;
566 u8 rsvd[3];
567 u8 numstatus;
568 u8 status;
569 } __attribute__ ((packed)) megacmd_t;
570
571 /*
572 * Defines for Driver IOCTL interface
573 */
574 #define MEGAIOC_MAGIC 'm'
575
576 #define MEGAIOC_QNADAP 'm' /* Query # of adapters */
577 #define MEGAIOC_QDRVRVER 'e' /* Query driver version */
578 #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */
579 #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) )
580 #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 )
581
582 /*
583 * Definition for the new ioctl interface (NIT)
584 */
585
586 /*
587 * Vendor specific Group-7 commands
588 */
589 #define VENDOR_SPECIFIC_COMMANDS 0xE0
590 #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01
591
592 /*
593 * The ioctl command. No other command shall be used for this interface
594 */
595 #define USCSICMD VENDOR_SPECIFIC_COMMANDS
596
597 /*
598 * Data direction flags
599 */
600 #define UIOC_RD 0x00001
601 #define UIOC_WR 0x00002
602
603 /*
604 * ioctl opcodes
605 */
606 #define MBOX_CMD 0x00000 /* DCMD or passthru command */
607 #define GET_DRIVER_VER 0x10000 /* Get driver version */
608 #define GET_N_ADAP 0x20000 /* Get number of adapters */
609 #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */
610 #define GET_CAP 0x40000 /* Get ioctl capabilities */
611 #define GET_STATS 0x50000 /* Get statistics, including error info */
612
613
614 /*
615 * The ioctl structure.
616 * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and
617 * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer.
618 */
619 typedef struct {
620 char signature[8]; /* Must contain "MEGANIT" */
621 u32 opcode; /* opcode for the command */
622 u32 adapno; /* adapter number */
623 union {
624 u8 __raw_mbox[18];
625 void __user *__uaddr; /* xferaddr for non-mbox cmds */
626 }__ua;
627
628 #define uioc_rmbox __ua.__raw_mbox
629 #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0]))
630 #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0]))
631 #define uioc_uaddr __ua.__uaddr
632
633 u32 xferlen; /* xferlen for DCMD and non-mbox
634 commands */
635 u32 flags; /* data direction flags */
636 }nitioctl_t;
637
638
639 /*
640 * I/O statistics for some applications like SNMP agent. The caller must
641 * provide the number of logical drives for which status should be reported.
642 */
643 typedef struct {
644 int num_ldrv; /* Number for logical drives for which the
645 status should be reported. */
646 u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for
647 each logical drive */
648 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
649 read for each logical
650 drive */
651 u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes
652 for each logical
653 drive */
654 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks
655 writes for each
656 logical drive */
657 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read
658 errors for each
659 logical drive */
660 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write
661 errors for each
662 logical drive */
663 }megastat_t;
664
665
666 struct private_bios_data {
667 u8 geometry:4; /*
668 * bits 0-3 - BIOS geometry
669 * 0x0001 - 1GB
670 * 0x0010 - 2GB
671 * 0x1000 - 8GB
672 * Others values are invalid
673 */
674 u8 unused:4; /* bits 4-7 are unused */
675 u8 boot_drv; /*
676 * logical drive set as boot drive
677 * 0..7 - for 8LD cards
678 * 0..39 - for 40LD cards
679 */
680 u8 rsvd[12];
681 u16 cksum; /* 0-(sum of first 13 bytes of this structure) */
682 } __attribute__ ((packed));
683
684
685
686
687 /*
688 * Mailbox and firmware commands and subopcodes used in this driver.
689 */
690
691 #define MEGA_MBOXCMD_LREAD 0x01
692 #define MEGA_MBOXCMD_LWRITE 0x02
693 #define MEGA_MBOXCMD_PASSTHRU 0x03
694 #define MEGA_MBOXCMD_ADPEXTINQ 0x04
695 #define MEGA_MBOXCMD_ADAPTERINQ 0x05
696 #define MEGA_MBOXCMD_LREAD64 0xA7
697 #define MEGA_MBOXCMD_LWRITE64 0xA8
698 #define MEGA_MBOXCMD_PASSTHRU64 0xC3
699 #define MEGA_MBOXCMD_EXTPTHRU 0xE3
700
701 #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */
702 #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */
703
704 #define FC_NEW_CONFIG 0xA1
705 #define NC_SUBOP_PRODUCT_INFO 0x0E
706 #define NC_SUBOP_ENQUIRY3 0x0F
707 #define ENQ3_GET_SOLICITED_FULL 0x02
708 #define OP_DCMD_READ_CONFIG 0x04
709 #define NEW_READ_CONFIG_8LD 0x67
710 #define READ_CONFIG_8LD 0x07
711 #define FLUSH_ADAPTER 0x0A
712 #define FLUSH_SYSTEM 0xFE
713
714 /*
715 * Command for random deletion of logical drives
716 */
717 #define FC_DEL_LOGDRV 0xA4 /* f/w command */
718 #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */
719 #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */
720 #define OP_DEL_LOGDRV 0x1C /* delete logical drive */
721
722 /*
723 * BIOS commands
724 */
725 #define IS_BIOS_ENABLED 0x62
726 #define GET_BIOS 0x01
727 #define CHNL_CLASS 0xA9
728 #define GET_CHNL_CLASS 0x00
729 #define SET_CHNL_CLASS 0x01
730 #define CH_RAID 0x01
731 #define CH_SCSI 0x00
732 #define BIOS_PVT_DATA 0x40
733 #define GET_BIOS_PVT_DATA 0x00
734
735
736 /*
737 * Commands to support clustering
738 */
739 #define MEGA_GET_TARGET_ID 0x7D
740 #define MEGA_CLUSTER_OP 0x70
741 #define MEGA_GET_CLUSTER_MODE 0x02
742 #define MEGA_CLUSTER_CMD 0x6E
743 #define MEGA_RESERVE_LD 0x01
744 #define MEGA_RELEASE_LD 0x02
745 #define MEGA_RESET_RESERVATIONS 0x03
746 #define MEGA_RESERVATION_STATUS 0x04
747 #define MEGA_RESERVE_PD 0x05
748 #define MEGA_RELEASE_PD 0x06
749
750
751 /*
752 * Module battery status
753 */
754 #define MEGA_BATT_MODULE_MISSING 0x01
755 #define MEGA_BATT_LOW_VOLTAGE 0x02
756 #define MEGA_BATT_TEMP_HIGH 0x04
757 #define MEGA_BATT_PACK_MISSING 0x08
758 #define MEGA_BATT_CHARGE_MASK 0x30
759 #define MEGA_BATT_CHARGE_DONE 0x00
760 #define MEGA_BATT_CHARGE_INPROG 0x10
761 #define MEGA_BATT_CHARGE_FAIL 0x20
762 #define MEGA_BATT_CYCLES_EXCEEDED 0x40
763
764 /*
765 * Physical drive states.
766 */
767 #define PDRV_UNCNF 0
768 #define PDRV_ONLINE 3
769 #define PDRV_FAILED 4
770 #define PDRV_RBLD 5
771 #define PDRV_HOTSPARE 6
772
773
774 /*
775 * Raid logical drive states.
776 */
777 #define RDRV_OFFLINE 0
778 #define RDRV_DEGRADED 1
779 #define RDRV_OPTIMAL 2
780 #define RDRV_DELETED 3
781
782 /*
783 * Read, write and cache policies
784 */
785 #define NO_READ_AHEAD 0
786 #define READ_AHEAD 1
787 #define ADAP_READ_AHEAD 2
788 #define WRMODE_WRITE_THRU 0
789 #define WRMODE_WRITE_BACK 1
790 #define CACHED_IO 0
791 #define DIRECT_IO 1
792
793
794 #define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp))
795
796 /*
797 * Each controller's soft state
798 */
799 typedef struct {
800 int this_id; /* our id, may set to different than 7 if
801 clustering is available */
802 u32 flag;
803
804 unsigned long base;
805
806 /* mbox64 with mbox not aligned on 16-byte boundry */
807 mbox64_t *una_mbox64;
808 dma_addr_t una_mbox64_dma;
809
810 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */
811 volatile mbox_t *mbox; /* ptr to standard mailbox */
812 dma_addr_t mbox_dma;
813
814 struct pci_dev *dev;
815
816 struct list_head free_list;
817 struct list_head pending_list;
818 struct list_head completed_list;
819
820 struct Scsi_Host *host;
821
822 #define MEGA_BUFFER_SIZE (2*1024)
823 u8 *mega_buffer;
824 dma_addr_t buf_dma_handle;
825
826 mega_product_info product_info;
827
828 u8 max_cmds;
829 scb_t *scb_list;
830
831 atomic_t pend_cmds; /* maintain a counter for pending
832 commands in firmware */
833
834 #if MEGA_HAVE_STATS
835 u32 nreads[MAX_LOGICAL_DRIVES_40LD];
836 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD];
837 u32 nwrites[MAX_LOGICAL_DRIVES_40LD];
838 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD];
839 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD];
840 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD];
841 #endif
842
843 /* Host adapter parameters */
844 u8 numldrv;
845 u8 fw_version[7];
846 u8 bios_version[7];
847
848 #ifdef CONFIG_PROC_FS
849 struct proc_dir_entry *controller_proc_dir_entry;
850 struct proc_dir_entry *proc_read;
851 struct proc_dir_entry *proc_stat;
852 struct proc_dir_entry *proc_mbox;
853
854 #if MEGA_HAVE_ENH_PROC
855 struct proc_dir_entry *proc_rr;
856 struct proc_dir_entry *proc_battery;
857 #define MAX_PROC_CHANNELS 4
858 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
859 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
860 #endif
861
862 #endif
863
864 int has_64bit_addr; /* are we using 64-bit addressing */
865 int support_ext_cdb;
866 int boot_ldrv_enabled;
867 int boot_ldrv;
868 int boot_pdrv_enabled; /* boot from physical drive */
869 int boot_pdrv_ch; /* boot physical drive channel */
870 int boot_pdrv_tgt; /* boot physical drive target */
871
872
873 int support_random_del; /* Do we support random deletion of
874 logdrvs */
875 int read_ldidmap; /* set after logical drive deltion. The
876 logical drive number must be read from the
877 map */
878 atomic_t quiescent; /* a stage reached when delete logical
879 drive needs to be done. Stop
880 sending requests to the hba till
881 delete operation is completed */
882 spinlock_t lock;
883
884 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on
885 what channels. */
886 int mega_ch_class;
887
888 u8 sglen; /* f/w supported scatter-gather list length */
889
890 scb_t int_scb;
891 Scsi_Cmnd int_scmd;
892 struct mutex int_mtx; /* To synchronize the internal
893 commands */
894 struct completion int_waitq; /* wait queue for internal
895 cmds */
896
897 int has_cluster; /* cluster support on this HBA */
898 }adapter_t;
899
900
901 struct mega_hbas {
902 int is_bios_enabled;
903 adapter_t *hostdata_addr;
904 };
905
906
907 /*
908 * For state flag. Do not use LSB(8 bits) which are
909 * reserved for storing info about channels.
910 */
911 #define IN_ABORT 0x80000000L
912 #define IN_RESET 0x40000000L
913 #define BOARD_MEMMAP 0x20000000L
914 #define BOARD_IOMAP 0x10000000L
915 #define BOARD_40LD 0x08000000L
916 #define BOARD_64BIT 0x04000000L
917
918 #define INTR_VALID 0x40
919
920 #define PCI_CONF_AMISIG 0xa0
921 #define PCI_CONF_AMISIG64 0xa4
922
923
924 #define MEGA_DMA_TYPE_NONE 0xFFFF
925 #define MEGA_BULK_DATA 0x0001
926 #define MEGA_SGLIST 0x0002
927
928 /*
929 * Parameters for the io-mapped controllers
930 */
931
932 /* I/O Port offsets */
933 #define CMD_PORT 0x00
934 #define ACK_PORT 0x00
935 #define TOGGLE_PORT 0x01
936 #define INTR_PORT 0x0a
937
938 #define MBOX_BUSY_PORT 0x00
939 #define MBOX_PORT0 0x04
940 #define MBOX_PORT1 0x05
941 #define MBOX_PORT2 0x06
942 #define MBOX_PORT3 0x07
943 #define ENABLE_MBOX_REGION 0x0B
944
945 /* I/O Port Values */
946 #define ISSUE_BYTE 0x10
947 #define ACK_BYTE 0x08
948 #define ENABLE_INTR_BYTE 0xc0
949 #define DISABLE_INTR_BYTE 0x00
950 #define VALID_INTR_BYTE 0x40
951 #define MBOX_BUSY_BYTE 0x10
952 #define ENABLE_MBOX_BYTE 0x00
953
954
955 /* Setup some port macros here */
956 #define issue_command(adapter) \
957 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT)
958
959 #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT)
960
961 #define set_irq_state(adapter, value) \
962 outb_p((value), (adapter)->base + INTR_PORT)
963
964 #define irq_ack(adapter) \
965 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT)
966
967 #define irq_enable(adapter) \
968 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
969
970 #define irq_disable(adapter) \
971 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
972
973
974 /*
975 * This is our SYSDEP area. All kernel specific detail should be placed here -
976 * as much as possible
977 */
978
979 /*
980 * End of SYSDEP area
981 */
982
983 const char *megaraid_info (struct Scsi_Host *);
984
985 static int mega_query_adapter(adapter_t *);
986 static int issue_scb(adapter_t *, scb_t *);
987 static int mega_setup_mailbox(adapter_t *);
988
989 static int megaraid_queue (Scsi_Cmnd *, void (*)(Scsi_Cmnd *));
990 static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
991 static void __mega_runpendq(adapter_t *);
992 static int issue_scb_block(adapter_t *, u_char *);
993
994 static irqreturn_t megaraid_isr_memmapped(int, void *);
995 static irqreturn_t megaraid_isr_iomapped(int, void *);
996
997 static void mega_free_scb(adapter_t *, scb_t *);
998
999 static int megaraid_abort(Scsi_Cmnd *);
1000 static int megaraid_reset(Scsi_Cmnd *);
1001 static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
1002 static int megaraid_biosparam(struct scsi_device *, struct block_device *,
1003 sector_t, int []);
1004 static int mega_print_inquiry(char *, char *);
1005
1006 static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
1007 u32 *buffer, u32 *length);
1008 static int __mega_busywait_mbox (adapter_t *);
1009 static void mega_rundoneq (adapter_t *);
1010 static void mega_cmd_done(adapter_t *, u8 [], int, int);
1011 static inline void mega_free_sgl (adapter_t *adapter);
1012 static void mega_8_to_40ld (mraid_inquiry *inquiry,
1013 mega_inquiry3 *enquiry3, mega_product_info *);
1014
1015 static int megadev_open (struct inode *, struct file *);
1016 static int megadev_ioctl (struct inode *, struct file *, unsigned int,
1017 unsigned long);
1018 static int mega_m_to_n(void __user *, nitioctl_t *);
1019 static int mega_n_to_m(void __user *, megacmd_t *);
1020
1021 static int mega_init_scb (adapter_t *);
1022
1023 static int mega_is_bios_enabled (adapter_t *);
1024
1025 #ifdef CONFIG_PROC_FS
1026 static void mega_create_proc_entry(int, struct proc_dir_entry *);
1027 static int proc_read_config(char *, char **, off_t, int, int *, void *);
1028 static int proc_read_stat(char *, char **, off_t, int, int *, void *);
1029 static int proc_read_mbox(char *, char **, off_t, int, int *, void *);
1030 static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *);
1031 static int proc_battery(char *, char **, off_t, int, int *, void *);
1032 static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *);
1033 static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *);
1034 static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *);
1035 static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *);
1036 static int proc_pdrv(adapter_t *, char *, int);
1037 static int proc_rdrv_10(char *, char **, off_t, int, int *, void *);
1038 static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
1039 static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
1040 static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
1041 static int proc_rdrv(adapter_t *, char *, int, int);
1042 #endif
1043
1044 static int mega_adapinq(adapter_t *, dma_addr_t);
1045 static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
1046
1047 static int mega_support_ext_cdb(adapter_t *);
1048 static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
1049 Scsi_Cmnd *, int, int);
1050 static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
1051 scb_t *, Scsi_Cmnd *, int, int);
1052 static void mega_enum_raid_scsi(adapter_t *);
1053 static void mega_get_boot_drv(adapter_t *);
1054 static int mega_support_random_del(adapter_t *);
1055 static int mega_del_logdrv(adapter_t *, int);
1056 static int mega_do_del_logdrv(adapter_t *, int);
1057 static void mega_get_max_sgl(adapter_t *);
1058 static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *);
1059 static void mega_internal_done(Scsi_Cmnd *);
1060 static int mega_support_cluster(adapter_t *);
1061 #endif
1062
1063 /* vi: set ts=8 sw=8 tw=78: */
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