Loading...
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#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 */
123struct 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
134struct 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
143typedef struct {
144 struct mbox_out m_out;
145 struct mbox_in m_in;
146} __attribute__ ((packed)) mbox_t;
147
148typedef 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
160typedef 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 */
184typedef 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
208typedef struct {
209 u64 address;
210 u32 length;
211} __attribute__ ((packed)) mega_sgl64;
212
213typedef struct {
214 u32 address;
215 u32 length;
216} __attribute__ ((packed)) mega_sglist;
217
218
219/* Queued command data */
220typedef 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 */
256typedef 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
283struct 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
332typedef 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 */
363typedef 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: temperature 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
398typedef 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
406typedef struct {
407 u8 pdrv_state[MAX_PHYSICAL_DRIVES];
408 u8 rsvd;
409} __attribute__ ((packed)) mega_pdrv_info;
410
411/* RAID inquiry: Mailbox command 0x05*/
412typedef 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*/
420typedef 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
429typedef struct {
430 u8 channel;
431 u8 target;
432}__attribute__ ((packed)) adp_device;
433
434typedef 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
440typedef 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
446typedef 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
458typedef struct {
459 logdrv_param lparam;
460 adp_span_40ld span[MAX_SPAN_DEPTH];
461}__attribute__ ((packed)) logdrv_40ld;
462
463typedef struct {
464 logdrv_param lparam;
465 adp_span_8ld span[MAX_SPAN_DEPTH];
466}__attribute__ ((packed)) logdrv_8ld;
467
468typedef 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 DISABLE */
473 u32 size; /* configurable size in terms of 512 byte
474 blocks */
475}__attribute__ ((packed)) phys_drv;
476
477typedef 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
484typedef 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
503struct 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 up to 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 application needs to issue a
538 * ioctl first to find out the number of controllers in the system.
539 */
540#define MAX_CONTROLLERS 32
541
542struct 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 */
558typedef 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 */
619typedef 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 */
643typedef 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
666struct 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 */
799typedef 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 void __iomem *mmio_base;
806
807 /* mbox64 with mbox not aligned on 16-byte boundary */
808 mbox64_t *una_mbox64;
809 dma_addr_t una_mbox64_dma;
810
811 volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */
812 volatile mbox_t *mbox; /* ptr to standard mailbox */
813 dma_addr_t mbox_dma;
814
815 struct pci_dev *dev;
816
817 struct list_head free_list;
818 struct list_head pending_list;
819 struct list_head completed_list;
820
821 struct Scsi_Host *host;
822
823#define MEGA_BUFFER_SIZE (2*1024)
824 u8 *mega_buffer;
825 dma_addr_t buf_dma_handle;
826
827 mega_product_info product_info;
828
829 u8 max_cmds;
830 scb_t *scb_list;
831
832 atomic_t pend_cmds; /* maintain a counter for pending
833 commands in firmware */
834
835#if MEGA_HAVE_STATS
836 u32 nreads[MAX_LOGICAL_DRIVES_40LD];
837 u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD];
838 u32 nwrites[MAX_LOGICAL_DRIVES_40LD];
839 u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD];
840 u32 rd_errors[MAX_LOGICAL_DRIVES_40LD];
841 u32 wr_errors[MAX_LOGICAL_DRIVES_40LD];
842#endif
843
844 /* Host adapter parameters */
845 u8 numldrv;
846 u8 fw_version[7];
847 u8 bios_version[7];
848
849#ifdef CONFIG_PROC_FS
850 struct proc_dir_entry *controller_proc_dir_entry;
851 struct proc_dir_entry *proc_read;
852 struct proc_dir_entry *proc_stat;
853 struct proc_dir_entry *proc_mbox;
854
855#if MEGA_HAVE_ENH_PROC
856 struct proc_dir_entry *proc_rr;
857 struct proc_dir_entry *proc_battery;
858#define MAX_PROC_CHANNELS 4
859 struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS];
860 struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS];
861#endif
862
863#endif
864
865 int has_64bit_addr; /* are we using 64-bit addressing */
866 int support_ext_cdb;
867 int boot_ldrv_enabled;
868 int boot_ldrv;
869 int boot_pdrv_enabled; /* boot from physical drive */
870 int boot_pdrv_ch; /* boot physical drive channel */
871 int boot_pdrv_tgt; /* boot physical drive target */
872
873
874 int support_random_del; /* Do we support random deletion of
875 logdrvs */
876 int read_ldidmap; /* set after logical drive deltion. The
877 logical drive number must be read from the
878 map */
879 atomic_t quiescent; /* a stage reached when delete logical
880 drive needs to be done. Stop
881 sending requests to the hba till
882 delete operation is completed */
883 spinlock_t lock;
884
885 u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on
886 what channels. */
887 int mega_ch_class;
888
889 u8 sglen; /* f/w supported scatter-gather list length */
890
891 unsigned char int_cdb[MAX_COMMAND_SIZE];
892 scb_t int_scb;
893 struct mutex int_mtx; /* To synchronize the internal
894 commands */
895 struct completion int_waitq; /* wait queue for internal
896 cmds */
897
898 int has_cluster; /* cluster support on this HBA */
899}adapter_t;
900
901
902struct mega_hbas {
903 int is_bios_enabled;
904 adapter_t *hostdata_addr;
905};
906
907
908/*
909 * For state flag. Do not use LSB(8 bits) which are
910 * reserved for storing info about channels.
911 */
912#define IN_ABORT 0x80000000L
913#define IN_RESET 0x40000000L
914#define BOARD_MEMMAP 0x20000000L
915#define BOARD_IOMAP 0x10000000L
916#define BOARD_40LD 0x08000000L
917#define BOARD_64BIT 0x04000000L
918
919#define INTR_VALID 0x40
920
921#define PCI_CONF_AMISIG 0xa0
922#define PCI_CONF_AMISIG64 0xa4
923
924
925#define MEGA_DMA_TYPE_NONE 0xFFFF
926#define MEGA_BULK_DATA 0x0001
927#define MEGA_SGLIST 0x0002
928
929/*
930 * Parameters for the io-mapped controllers
931 */
932
933/* I/O Port offsets */
934#define CMD_PORT 0x00
935#define ACK_PORT 0x00
936#define TOGGLE_PORT 0x01
937#define INTR_PORT 0x0a
938
939#define MBOX_BUSY_PORT 0x00
940#define MBOX_PORT0 0x04
941#define MBOX_PORT1 0x05
942#define MBOX_PORT2 0x06
943#define MBOX_PORT3 0x07
944#define ENABLE_MBOX_REGION 0x0B
945
946/* I/O Port Values */
947#define ISSUE_BYTE 0x10
948#define ACK_BYTE 0x08
949#define ENABLE_INTR_BYTE 0xc0
950#define DISABLE_INTR_BYTE 0x00
951#define VALID_INTR_BYTE 0x40
952#define MBOX_BUSY_BYTE 0x10
953#define ENABLE_MBOX_BYTE 0x00
954
955
956/* Setup some port macros here */
957#define issue_command(adapter) \
958 outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT)
959
960#define irq_state(adapter) inb_p((adapter)->base + INTR_PORT)
961
962#define set_irq_state(adapter, value) \
963 outb_p((value), (adapter)->base + INTR_PORT)
964
965#define irq_ack(adapter) \
966 outb_p(ACK_BYTE, (adapter)->base + ACK_PORT)
967
968#define irq_enable(adapter) \
969 outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
970
971#define irq_disable(adapter) \
972 outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT)
973
974
975/*
976 * This is our SYSDEP area. All kernel specific detail should be placed here -
977 * as much as possible
978 */
979
980/*
981 * End of SYSDEP area
982 */
983
984const char *megaraid_info (struct Scsi_Host *);
985
986static int mega_query_adapter(adapter_t *);
987static int issue_scb(adapter_t *, scb_t *);
988static int mega_setup_mailbox(adapter_t *);
989
990static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *);
991static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
992static void __mega_runpendq(adapter_t *);
993static int issue_scb_block(adapter_t *, u_char *);
994
995static irqreturn_t megaraid_isr_memmapped(int, void *);
996static irqreturn_t megaraid_isr_iomapped(int, void *);
997
998static void mega_free_scb(adapter_t *, scb_t *);
999
1000static int megaraid_abort(Scsi_Cmnd *);
1001static int megaraid_reset(Scsi_Cmnd *);
1002static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
1003static int megaraid_biosparam(struct scsi_device *, struct block_device *,
1004 sector_t, int []);
1005
1006static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
1007 u32 *buffer, u32 *length);
1008static int __mega_busywait_mbox (adapter_t *);
1009static void mega_rundoneq (adapter_t *);
1010static void mega_cmd_done(adapter_t *, u8 [], int, int);
1011static inline void mega_free_sgl (adapter_t *adapter);
1012static void mega_8_to_40ld (mraid_inquiry *inquiry,
1013 mega_inquiry3 *enquiry3, mega_product_info *);
1014
1015static int megadev_open (struct inode *, struct file *);
1016static int megadev_ioctl (struct file *, unsigned int, unsigned long);
1017static int mega_m_to_n(void __user *, nitioctl_t *);
1018static int mega_n_to_m(void __user *, megacmd_t *);
1019
1020static int mega_init_scb (adapter_t *);
1021
1022static int mega_is_bios_enabled (adapter_t *);
1023
1024#ifdef CONFIG_PROC_FS
1025static int mega_print_inquiry(char *, char *);
1026static void mega_create_proc_entry(int, struct proc_dir_entry *);
1027static int proc_read_config(char *, char **, off_t, int, int *, void *);
1028static int proc_read_stat(char *, char **, off_t, int, int *, void *);
1029static int proc_read_mbox(char *, char **, off_t, int, int *, void *);
1030static int proc_rebuild_rate(char *, char **, off_t, int, int *, void *);
1031static int proc_battery(char *, char **, off_t, int, int *, void *);
1032static int proc_pdrv_ch0(char *, char **, off_t, int, int *, void *);
1033static int proc_pdrv_ch1(char *, char **, off_t, int, int *, void *);
1034static int proc_pdrv_ch2(char *, char **, off_t, int, int *, void *);
1035static int proc_pdrv_ch3(char *, char **, off_t, int, int *, void *);
1036static int proc_pdrv(adapter_t *, char *, int);
1037static int proc_rdrv_10(char *, char **, off_t, int, int *, void *);
1038static int proc_rdrv_20(char *, char **, off_t, int, int *, void *);
1039static int proc_rdrv_30(char *, char **, off_t, int, int *, void *);
1040static int proc_rdrv_40(char *, char **, off_t, int, int *, void *);
1041static int proc_rdrv(adapter_t *, char *, int, int);
1042
1043static int mega_adapinq(adapter_t *, dma_addr_t);
1044static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
1045#endif
1046
1047static int mega_support_ext_cdb(adapter_t *);
1048static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
1049 Scsi_Cmnd *, int, int);
1050static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
1051 scb_t *, Scsi_Cmnd *, int, int);
1052static void mega_enum_raid_scsi(adapter_t *);
1053static void mega_get_boot_drv(adapter_t *);
1054static int mega_support_random_del(adapter_t *);
1055static int mega_del_logdrv(adapter_t *, int);
1056static int mega_do_del_logdrv(adapter_t *, int);
1057static void mega_get_max_sgl(adapter_t *);
1058static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *);
1059static void mega_internal_done(Scsi_Cmnd *);
1060static int mega_support_cluster(adapter_t *);
1061#endif
1062
1063/* vi: set ts=8 sw=8 tw=78: */
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 */
88struct 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
99struct 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
108typedef struct {
109 struct mbox_out m_out;
110 struct mbox_in m_in;
111} __attribute__ ((packed)) mbox_t;
112
113typedef 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
125typedef 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 */
149typedef 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
173typedef struct {
174 u64 address;
175 u32 length;
176} __attribute__ ((packed)) mega_sgl64;
177
178typedef struct {
179 u32 address;
180 u32 length;
181} __attribute__ ((packed)) mega_sglist;
182
183
184/* Queued command data */
185typedef 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 */
221typedef 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
248struct 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
297typedef 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 */
328typedef 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
363typedef 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
371typedef struct {
372 u8 pdrv_state[MAX_PHYSICAL_DRIVES];
373 u8 rsvd;
374} __attribute__ ((packed)) mega_pdrv_info;
375
376/* RAID inquiry: Mailbox command 0x05*/
377typedef 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*/
385typedef 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
394typedef struct {
395 u8 channel;
396 u8 target;
397}__attribute__ ((packed)) adp_device;
398
399typedef 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
405typedef 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
411typedef 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
423typedef struct {
424 logdrv_param lparam;
425 adp_span_40ld span[MAX_SPAN_DEPTH];
426}__attribute__ ((packed)) logdrv_40ld;
427
428typedef struct {
429 logdrv_param lparam;
430 adp_span_8ld span[MAX_SPAN_DEPTH];
431}__attribute__ ((packed)) logdrv_8ld;
432
433typedef 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
442typedef 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
449typedef 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
468struct 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
507struct 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 */
523typedef 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 */
584typedef 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 */
608typedef 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
631struct 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 */
764typedef 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
867struct 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
949const char *megaraid_info (struct Scsi_Host *);
950
951static int mega_query_adapter(adapter_t *);
952static int issue_scb(adapter_t *, scb_t *);
953static int mega_setup_mailbox(adapter_t *);
954
955static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *);
956static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *);
957static void __mega_runpendq(adapter_t *);
958static int issue_scb_block(adapter_t *, u_char *);
959
960static irqreturn_t megaraid_isr_memmapped(int, void *);
961static irqreturn_t megaraid_isr_iomapped(int, void *);
962
963static void mega_free_scb(adapter_t *, scb_t *);
964
965static int megaraid_abort(Scsi_Cmnd *);
966static int megaraid_reset(Scsi_Cmnd *);
967static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int);
968static int megaraid_biosparam(struct scsi_device *, struct block_device *,
969 sector_t, int []);
970
971static int mega_build_sglist (adapter_t *adapter, scb_t *scb,
972 u32 *buffer, u32 *length);
973static int __mega_busywait_mbox (adapter_t *);
974static void mega_rundoneq (adapter_t *);
975static void mega_cmd_done(adapter_t *, u8 [], int, int);
976static inline void mega_free_sgl (adapter_t *adapter);
977static void mega_8_to_40ld (mraid_inquiry *inquiry,
978 mega_inquiry3 *enquiry3, mega_product_info *);
979
980static int megadev_open (struct inode *, struct file *);
981static int megadev_ioctl (struct file *, unsigned int, unsigned long);
982static int mega_m_to_n(void __user *, nitioctl_t *);
983static int mega_n_to_m(void __user *, megacmd_t *);
984
985static int mega_init_scb (adapter_t *);
986
987static int mega_is_bios_enabled (adapter_t *);
988
989#ifdef CONFIG_PROC_FS
990static void mega_create_proc_entry(int, struct proc_dir_entry *);
991static int mega_adapinq(adapter_t *, dma_addr_t);
992static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t);
993#endif
994
995static int mega_support_ext_cdb(adapter_t *);
996static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *,
997 Scsi_Cmnd *, int, int);
998static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *,
999 scb_t *, Scsi_Cmnd *, int, int);
1000static void mega_enum_raid_scsi(adapter_t *);
1001static void mega_get_boot_drv(adapter_t *);
1002static int mega_support_random_del(adapter_t *);
1003static int mega_del_logdrv(adapter_t *, int);
1004static int mega_do_del_logdrv(adapter_t *, int);
1005static void mega_get_max_sgl(adapter_t *);
1006static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *);
1007static int mega_support_cluster(adapter_t *);
1008#endif
1009
1010/* vi: set ts=8 sw=8 tw=78: */