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1 | #ifndef __MEGARAID_H__ |
2 | #define __MEGARAID_H__ |
3 | |
4 | #include <linux/spinlock.h> |
5 | #include <linux/mutex.h> |
6 | |
7 | #define MEGARAID_VERSION \ |
8 | "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" |
9 | |
10 | /* |
11 | * Driver features - change the values to enable or disable features in the |
12 | * driver. |
13 | */ |
14 | |
15 | /* |
16 | * Command coalescing - This feature allows the driver to be able to combine |
17 | * two or more commands and issue as one command in order to boost I/O |
18 | * performance. Useful if the nature of the I/O is sequential. It is not very |
19 | * useful for random natured I/Os. |
20 | */ |
21 | #define MEGA_HAVE_COALESCING 0 |
22 | |
23 | /* |
24 | * Clustering support - Set this flag if you are planning to use the |
25 | * clustering services provided by the megaraid controllers and planning to |
26 | * setup a cluster |
27 | */ |
28 | #define MEGA_HAVE_CLUSTERING 1 |
29 | |
30 | /* |
31 | * Driver statistics - Set this flag if you are interested in statics about |
32 | * number of I/O completed on each logical drive and how many interrupts |
33 | * generated. If enabled, this information is available through /proc |
34 | * interface and through the private ioctl. Setting this flag has a |
35 | * performance penalty. |
36 | */ |
37 | #define MEGA_HAVE_STATS 0 |
38 | |
39 | /* |
40 | * Enhanced /proc interface - This feature will allow you to have a more |
41 | * detailed /proc interface for megaraid driver. E.g., a real time update of |
42 | * the status of the logical drives, battery status, physical drives etc. |
43 | */ |
44 | #define MEGA_HAVE_ENH_PROC 1 |
45 | |
46 | #define MAX_DEV_TYPE 32 |
47 | |
48 | #define PCI_DEVICE_ID_DISCOVERY 0x000E |
49 | #define PCI_DEVICE_ID_PERC4_DI 0x000F |
50 | #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 |
51 | |
52 | #define HBA_SIGNATURE 0x3344 |
53 | #define HBA_SIGNATURE_471 0xCCCC |
54 | #define HBA_SIGNATURE_64BIT 0x0299 |
55 | |
56 | #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for |
57 | mailbox to be free */ |
58 | #define DEFAULT_INITIATOR_ID 7 |
59 | |
60 | #define MAX_SGLIST 64 /* max supported in f/w */ |
61 | #define MIN_SGLIST 26 /* guaranteed to support these many */ |
62 | #define MAX_COMMANDS 126 |
63 | #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS |
64 | is less than max commands |
65 | supported by any f/w */ |
66 | |
67 | #define MAX_CDB_LEN 10 |
68 | #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ |
69 | |
70 | #define DEF_CMD_PER_LUN 63 |
71 | #define MAX_CMD_PER_LUN MAX_COMMANDS |
72 | #define MAX_FIRMWARE_STATUS 46 |
73 | #define MAX_XFER_PER_CMD (64*1024) |
74 | #define MAX_SECTORS_PER_IO 128 |
75 | |
76 | #define MAX_LOGICAL_DRIVES_40LD 40 |
77 | #define FC_MAX_PHYSICAL_DEVICES 256 |
78 | #define MAX_LOGICAL_DRIVES_8LD 8 |
79 | #define MAX_CHANNELS 5 |
80 | #define MAX_TARGET 15 |
81 | #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET |
82 | #define MAX_ROW_SIZE_40LD 32 |
83 | #define MAX_ROW_SIZE_8LD 8 |
84 | #define MAX_SPAN_DEPTH 8 |
85 | |
86 | #define NVIRT_CHAN 4 /* # of virtual channels to represent |
87 | up to 60 logical drives */ |
88 | struct mbox_out { |
89 | /* 0x0 */ u8 cmd; |
90 | /* 0x1 */ u8 cmdid; |
91 | /* 0x2 */ u16 numsectors; |
92 | /* 0x4 */ u32 lba; |
93 | /* 0x8 */ u32 xferaddr; |
94 | /* 0xC */ u8 logdrv; |
95 | /* 0xD */ u8 numsgelements; |
96 | /* 0xE */ u8 resvd; |
97 | } __attribute__ ((packed)); |
98 | |
99 | struct mbox_in { |
100 | /* 0xF */ volatile u8 busy; |
101 | /* 0x10 */ volatile u8 numstatus; |
102 | /* 0x11 */ volatile u8 status; |
103 | /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; |
104 | volatile u8 poll; |
105 | volatile u8 ack; |
106 | } __attribute__ ((packed)); |
107 | |
108 | typedef struct { |
109 | struct mbox_out m_out; |
110 | struct mbox_in m_in; |
111 | } __attribute__ ((packed)) mbox_t; |
112 | |
113 | typedef struct { |
114 | u32 xfer_segment_lo; |
115 | u32 xfer_segment_hi; |
116 | mbox_t mbox; |
117 | } __attribute__ ((packed)) mbox64_t; |
118 | |
119 | |
120 | /* |
121 | * Passthru definitions |
122 | */ |
123 | #define MAX_REQ_SENSE_LEN 0x20 |
124 | |
125 | typedef struct { |
126 | u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
127 | u8 ars:1; |
128 | u8 reserved:3; |
129 | u8 islogical:1; |
130 | u8 logdrv; /* if islogical == 1 */ |
131 | u8 channel; /* if islogical == 0 */ |
132 | u8 target; /* if islogical == 0 */ |
133 | u8 queuetag; /* unused */ |
134 | u8 queueaction; /* unused */ |
135 | u8 cdb[MAX_CDB_LEN]; |
136 | u8 cdblen; |
137 | u8 reqsenselen; |
138 | u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
139 | u8 numsgelements; |
140 | u8 scsistatus; |
141 | u32 dataxferaddr; |
142 | u32 dataxferlen; |
143 | } __attribute__ ((packed)) mega_passthru; |
144 | |
145 | |
146 | /* |
147 | * Extended passthru: support CDB > 10 bytes |
148 | */ |
149 | typedef struct { |
150 | u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
151 | u8 ars:1; |
152 | u8 rsvd1:1; |
153 | u8 cd_rom:1; |
154 | u8 rsvd2:1; |
155 | u8 islogical:1; |
156 | u8 logdrv; /* if islogical == 1 */ |
157 | u8 channel; /* if islogical == 0 */ |
158 | u8 target; /* if islogical == 0 */ |
159 | u8 queuetag; /* unused */ |
160 | u8 queueaction; /* unused */ |
161 | u8 cdblen; |
162 | u8 rsvd3; |
163 | u8 cdb[MAX_EXT_CDB_LEN]; |
164 | u8 numsgelements; |
165 | u8 status; |
166 | u8 reqsenselen; |
167 | u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
168 | u8 rsvd4; |
169 | u32 dataxferaddr; |
170 | u32 dataxferlen; |
171 | } __attribute__ ((packed)) mega_ext_passthru; |
172 | |
173 | typedef struct { |
174 | u64 address; |
175 | u32 length; |
176 | } __attribute__ ((packed)) mega_sgl64; |
177 | |
178 | typedef struct { |
179 | u32 address; |
180 | u32 length; |
181 | } __attribute__ ((packed)) mega_sglist; |
182 | |
183 | |
184 | /* Queued command data */ |
185 | typedef struct { |
186 | int idx; |
187 | u32 state; |
188 | struct list_head list; |
189 | u8 raw_mbox[66]; |
190 | u32 dma_type; |
191 | u32 dma_direction; |
192 | |
193 | Scsi_Cmnd *cmd; |
194 | dma_addr_t dma_h_bulkdata; |
195 | dma_addr_t dma_h_sgdata; |
196 | |
197 | mega_sglist *sgl; |
198 | mega_sgl64 *sgl64; |
199 | dma_addr_t sgl_dma_addr; |
200 | |
201 | mega_passthru *pthru; |
202 | dma_addr_t pthru_dma_addr; |
203 | mega_ext_passthru *epthru; |
204 | dma_addr_t epthru_dma_addr; |
205 | } scb_t; |
206 | |
207 | /* |
208 | * Flags to follow the scb as it transitions between various stages |
209 | */ |
210 | #define SCB_FREE 0x0000 /* on the free list */ |
211 | #define SCB_ACTIVE 0x0001 /* off the free list */ |
212 | #define SCB_PENDQ 0x0002 /* on the pending queue */ |
213 | #define SCB_ISSUED 0x0004 /* issued - owner f/w */ |
214 | #define SCB_ABORT 0x0008 /* Got an abort for this one */ |
215 | #define SCB_RESET 0x0010 /* Got a reset for this one */ |
216 | |
217 | /* |
218 | * Utilities declare this strcture size as 1024 bytes. So more fields can |
219 | * be added in future. |
220 | */ |
221 | typedef struct { |
222 | u32 data_size; /* current size in bytes (not including resvd) */ |
223 | |
224 | u32 config_signature; |
225 | /* Current value is 0x00282008 |
226 | * 0x28=MAX_LOGICAL_DRIVES, |
227 | * 0x20=Number of stripes and |
228 | * 0x08=Number of spans */ |
229 | |
230 | u8 fw_version[16]; /* printable ASCI string */ |
231 | u8 bios_version[16]; /* printable ASCI string */ |
232 | u8 product_name[80]; /* printable ASCI string */ |
233 | |
234 | u8 max_commands; /* Max. concurrent commands supported */ |
235 | u8 nchannels; /* Number of SCSI Channels detected */ |
236 | u8 fc_loop_present; /* Number of Fibre Loops detected */ |
237 | u8 mem_type; /* EDO, FPM, SDRAM etc */ |
238 | |
239 | u32 signature; |
240 | u16 dram_size; /* In terms of MB */ |
241 | u16 subsysid; |
242 | |
243 | u16 subsysvid; |
244 | u8 notify_counters; |
245 | u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ |
246 | } __attribute__ ((packed)) mega_product_info; |
247 | |
248 | struct notify { |
249 | u32 global_counter; /* Any change increments this counter */ |
250 | |
251 | u8 param_counter; /* Indicates any params changed */ |
252 | u8 param_id; /* Param modified - defined below */ |
253 | u16 param_val; /* New val of last param modified */ |
254 | |
255 | u8 write_config_counter; /* write config occurred */ |
256 | u8 write_config_rsvd[3]; |
257 | |
258 | u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ |
259 | u8 ldrv_opid; /* ldrv num */ |
260 | u8 ldrv_opcmd; /* ldrv operation - defined below */ |
261 | u8 ldrv_opstatus; /* status of the operation */ |
262 | |
263 | u8 ldrv_state_counter; /* Indicates change of ldrv state */ |
264 | u8 ldrv_state_id; /* ldrv num */ |
265 | u8 ldrv_state_new; /* New state */ |
266 | u8 ldrv_state_old; /* old state */ |
267 | |
268 | u8 pdrv_state_counter; /* Indicates change of ldrv state */ |
269 | u8 pdrv_state_id; /* pdrv id */ |
270 | u8 pdrv_state_new; /* New state */ |
271 | u8 pdrv_state_old; /* old state */ |
272 | |
273 | u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ |
274 | u8 pdrv_fmt_id; /* pdrv id */ |
275 | u8 pdrv_fmt_val; /* format started/over */ |
276 | u8 pdrv_fmt_rsvd; |
277 | |
278 | u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ |
279 | u8 targ_xfer_id; /* pdrv Id */ |
280 | u8 targ_xfer_val; /* new Xfer params of last pdrv */ |
281 | u8 targ_xfer_rsvd; |
282 | |
283 | u8 fcloop_id_chg_counter; /* Indicates loopid changed */ |
284 | u8 fcloopid_pdrvid; /* pdrv id */ |
285 | u8 fcloop_id0; /* loopid on fc loop 0 */ |
286 | u8 fcloop_id1; /* loopid on fc loop 1 */ |
287 | |
288 | u8 fcloop_state_counter; /* Indicates loop state changed */ |
289 | u8 fcloop_state0; /* state of fc loop 0 */ |
290 | u8 fcloop_state1; /* state of fc loop 1 */ |
291 | u8 fcloop_state_rsvd; |
292 | } __attribute__ ((packed)); |
293 | |
294 | #define MAX_NOTIFY_SIZE 0x80 |
295 | #define CUR_NOTIFY_SIZE sizeof(struct notify) |
296 | |
297 | typedef struct { |
298 | u32 data_size; /* current size in bytes (not including resvd) */ |
299 | |
300 | struct notify notify; |
301 | |
302 | u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; |
303 | |
304 | u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ |
305 | u8 cache_flush_interval; /* In terms of Seconds */ |
306 | u8 sense_alert; |
307 | u8 drive_insert_count; /* drive insertion count */ |
308 | |
309 | u8 battery_status; |
310 | u8 num_ldrv; /* No. of Log Drives configured */ |
311 | u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of |
312 | reconstruct */ |
313 | u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv |
314 | Status */ |
315 | |
316 | u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ |
317 | u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; |
318 | u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ |
319 | u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ |
320 | u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; |
321 | |
322 | u8 targ_xfer[80]; /* phys device transfer rate */ |
323 | u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ |
324 | } __attribute__ ((packed)) mega_inquiry3; |
325 | |
326 | |
327 | /* Structures */ |
328 | typedef struct { |
329 | u8 max_commands; /* Max concurrent commands supported */ |
330 | u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ |
331 | u8 max_targ_per_chan; /* Max targ per channel */ |
332 | u8 nchannels; /* Number of channels on HBA */ |
333 | u8 fw_version[4]; /* Firmware version */ |
334 | u16 age_of_flash; /* Number of times FW has been flashed */ |
335 | u8 chip_set_value; /* Contents of 0xC0000832 */ |
336 | u8 dram_size; /* In MB */ |
337 | u8 cache_flush_interval; /* in seconds */ |
338 | u8 bios_version[4]; |
339 | u8 board_type; |
340 | u8 sense_alert; |
341 | u8 write_config_count; /* Increase with every configuration |
342 | change */ |
343 | u8 drive_inserted_count; /* Increase with every drive inserted |
344 | */ |
345 | u8 inserted_drive; /* Channel:Id of inserted drive */ |
346 | u8 battery_status; /* |
347 | * BIT 0: battery module missing |
348 | * BIT 1: VBAD |
349 | * BIT 2: temperature high |
350 | * BIT 3: battery pack missing |
351 | * BIT 4,5: |
352 | * 00 - charge complete |
353 | * 01 - fast charge in progress |
354 | * 10 - fast charge fail |
355 | * 11 - undefined |
356 | * Bit 6: counter > 1000 |
357 | * Bit 7: Undefined |
358 | */ |
359 | u8 dec_fault_bus_info; |
360 | } __attribute__ ((packed)) mega_adp_info; |
361 | |
362 | |
363 | typedef struct { |
364 | u8 num_ldrv; /* Number of logical drives configured */ |
365 | u8 rsvd[3]; |
366 | u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; |
367 | u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; |
368 | u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; |
369 | } __attribute__ ((packed)) mega_ldrv_info; |
370 | |
371 | typedef struct { |
372 | u8 pdrv_state[MAX_PHYSICAL_DRIVES]; |
373 | u8 rsvd; |
374 | } __attribute__ ((packed)) mega_pdrv_info; |
375 | |
376 | /* RAID inquiry: Mailbox command 0x05*/ |
377 | typedef struct { |
378 | mega_adp_info adapter_info; |
379 | mega_ldrv_info logdrv_info; |
380 | mega_pdrv_info pdrv_info; |
381 | } __attribute__ ((packed)) mraid_inquiry; |
382 | |
383 | |
384 | /* RAID extended inquiry: Mailbox command 0x04*/ |
385 | typedef struct { |
386 | mraid_inquiry raid_inq; |
387 | u16 phys_drv_format[MAX_CHANNELS]; |
388 | u8 stack_attn; |
389 | u8 modem_status; |
390 | u8 rsvd[2]; |
391 | } __attribute__ ((packed)) mraid_ext_inquiry; |
392 | |
393 | |
394 | typedef struct { |
395 | u8 channel; |
396 | u8 target; |
397 | }__attribute__ ((packed)) adp_device; |
398 | |
399 | typedef struct { |
400 | u32 start_blk; /* starting block */ |
401 | u32 num_blks; /* # of blocks */ |
402 | adp_device device[MAX_ROW_SIZE_40LD]; |
403 | }__attribute__ ((packed)) adp_span_40ld; |
404 | |
405 | typedef struct { |
406 | u32 start_blk; /* starting block */ |
407 | u32 num_blks; /* # of blocks */ |
408 | adp_device device[MAX_ROW_SIZE_8LD]; |
409 | }__attribute__ ((packed)) adp_span_8ld; |
410 | |
411 | typedef struct { |
412 | u8 span_depth; /* Total # of spans */ |
413 | u8 level; /* RAID level */ |
414 | u8 read_ahead; /* read ahead, no read ahead, adaptive read |
415 | ahead */ |
416 | u8 stripe_sz; /* Encoded stripe size */ |
417 | u8 status; /* Status of the logical drive */ |
418 | u8 write_mode; /* write mode, write_through/write_back */ |
419 | u8 direct_io; /* direct io or through cache */ |
420 | u8 row_size; /* Number of stripes in a row */ |
421 | } __attribute__ ((packed)) logdrv_param; |
422 | |
423 | typedef struct { |
424 | logdrv_param lparam; |
425 | adp_span_40ld span[MAX_SPAN_DEPTH]; |
426 | }__attribute__ ((packed)) logdrv_40ld; |
427 | |
428 | typedef struct { |
429 | logdrv_param lparam; |
430 | adp_span_8ld span[MAX_SPAN_DEPTH]; |
431 | }__attribute__ ((packed)) logdrv_8ld; |
432 | |
433 | typedef struct { |
434 | u8 type; /* Type of the device */ |
435 | u8 cur_status; /* current status of the device */ |
436 | u8 tag_depth; /* Level of tagging */ |
437 | u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ |
438 | u32 size; /* configurable size in terms of 512 byte |
439 | blocks */ |
440 | }__attribute__ ((packed)) phys_drv; |
441 | |
442 | typedef struct { |
443 | u8 nlog_drives; /* number of logical drives */ |
444 | u8 resvd[3]; |
445 | logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; |
446 | phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
447 | }__attribute__ ((packed)) disk_array_40ld; |
448 | |
449 | typedef struct { |
450 | u8 nlog_drives; /* number of logical drives */ |
451 | u8 resvd[3]; |
452 | logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; |
453 | phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
454 | }__attribute__ ((packed)) disk_array_8ld; |
455 | |
456 | |
457 | /* |
458 | * User ioctl structure. |
459 | * This structure will be used for Traditional Method ioctl interface |
460 | * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the |
461 | * Driver ioctls. |
462 | * The Driver ioctl interface handles the commands at the driver level, |
463 | * without being sent to the card. |
464 | */ |
465 | /* system call imposed limit. Change accordingly */ |
466 | #define IOCTL_MAX_DATALEN 4096 |
467 | |
468 | struct uioctl_t { |
469 | u32 inlen; |
470 | u32 outlen; |
471 | union { |
472 | u8 fca[16]; |
473 | struct { |
474 | u8 opcode; |
475 | u8 subopcode; |
476 | u16 adapno; |
477 | #if BITS_PER_LONG == 32 |
478 | u8 *buffer; |
479 | u8 pad[4]; |
480 | #endif |
481 | #if BITS_PER_LONG == 64 |
482 | u8 *buffer; |
483 | #endif |
484 | u32 length; |
485 | } __attribute__ ((packed)) fcs; |
486 | } __attribute__ ((packed)) ui; |
487 | u8 mbox[18]; /* 16 bytes + 2 status bytes */ |
488 | mega_passthru pthru; |
489 | #if BITS_PER_LONG == 32 |
490 | char __user *data; /* buffer <= 4096 for 0x80 commands */ |
491 | char pad[4]; |
492 | #endif |
493 | #if BITS_PER_LONG == 64 |
494 | char __user *data; |
495 | #endif |
496 | } __attribute__ ((packed)); |
497 | |
498 | /* |
499 | * struct mcontroller is used to pass information about the controllers in the |
500 | * system. Its up to the application how to use the information. We are passing |
501 | * as much info about the cards as possible and useful. Before issuing the |
502 | * call to find information about the cards, the application needs to issue a |
503 | * ioctl first to find out the number of controllers in the system. |
504 | */ |
505 | #define MAX_CONTROLLERS 32 |
506 | |
507 | struct mcontroller { |
508 | u64 base; |
509 | u8 irq; |
510 | u8 numldrv; |
511 | u8 pcibus; |
512 | u16 pcidev; |
513 | u8 pcifun; |
514 | u16 pciid; |
515 | u16 pcivendor; |
516 | u8 pcislot; |
517 | u32 uid; |
518 | }; |
519 | |
520 | /* |
521 | * mailbox structure used for internal commands |
522 | */ |
523 | typedef struct { |
524 | u8 cmd; |
525 | u8 cmdid; |
526 | u8 opcode; |
527 | u8 subopcode; |
528 | u32 lba; |
529 | u32 xferaddr; |
530 | u8 logdrv; |
531 | u8 rsvd[3]; |
532 | u8 numstatus; |
533 | u8 status; |
534 | } __attribute__ ((packed)) megacmd_t; |
535 | |
536 | /* |
537 | * Defines for Driver IOCTL interface |
538 | */ |
539 | #define MEGAIOC_MAGIC 'm' |
540 | |
541 | #define MEGAIOC_QNADAP 'm' /* Query # of adapters */ |
542 | #define MEGAIOC_QDRVRVER 'e' /* Query driver version */ |
543 | #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ |
544 | #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) |
545 | #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) |
546 | |
547 | /* |
548 | * Definition for the new ioctl interface (NIT) |
549 | */ |
550 | |
551 | /* |
552 | * Vendor specific Group-7 commands |
553 | */ |
554 | #define VENDOR_SPECIFIC_COMMANDS 0xE0 |
555 | #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 |
556 | |
557 | /* |
558 | * The ioctl command. No other command shall be used for this interface |
559 | */ |
560 | #define USCSICMD VENDOR_SPECIFIC_COMMANDS |
561 | |
562 | /* |
563 | * Data direction flags |
564 | */ |
565 | #define UIOC_RD 0x00001 |
566 | #define UIOC_WR 0x00002 |
567 | |
568 | /* |
569 | * ioctl opcodes |
570 | */ |
571 | #define MBOX_CMD 0x00000 /* DCMD or passthru command */ |
572 | #define GET_DRIVER_VER 0x10000 /* Get driver version */ |
573 | #define GET_N_ADAP 0x20000 /* Get number of adapters */ |
574 | #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ |
575 | #define GET_CAP 0x40000 /* Get ioctl capabilities */ |
576 | #define GET_STATS 0x50000 /* Get statistics, including error info */ |
577 | |
578 | |
579 | /* |
580 | * The ioctl structure. |
581 | * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and |
582 | * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. |
583 | */ |
584 | typedef struct { |
585 | char signature[8]; /* Must contain "MEGANIT" */ |
586 | u32 opcode; /* opcode for the command */ |
587 | u32 adapno; /* adapter number */ |
588 | union { |
589 | u8 __raw_mbox[18]; |
590 | void __user *__uaddr; /* xferaddr for non-mbox cmds */ |
591 | }__ua; |
592 | |
593 | #define uioc_rmbox __ua.__raw_mbox |
594 | #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) |
595 | #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) |
596 | #define uioc_uaddr __ua.__uaddr |
597 | |
598 | u32 xferlen; /* xferlen for DCMD and non-mbox |
599 | commands */ |
600 | u32 flags; /* data direction flags */ |
601 | }nitioctl_t; |
602 | |
603 | |
604 | /* |
605 | * I/O statistics for some applications like SNMP agent. The caller must |
606 | * provide the number of logical drives for which status should be reported. |
607 | */ |
608 | typedef struct { |
609 | int num_ldrv; /* Number for logical drives for which the |
610 | status should be reported. */ |
611 | u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for |
612 | each logical drive */ |
613 | u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
614 | read for each logical |
615 | drive */ |
616 | u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes |
617 | for each logical |
618 | drive */ |
619 | u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
620 | writes for each |
621 | logical drive */ |
622 | u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read |
623 | errors for each |
624 | logical drive */ |
625 | u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write |
626 | errors for each |
627 | logical drive */ |
628 | }megastat_t; |
629 | |
630 | |
631 | struct private_bios_data { |
632 | u8 geometry:4; /* |
633 | * bits 0-3 - BIOS geometry |
634 | * 0x0001 - 1GB |
635 | * 0x0010 - 2GB |
636 | * 0x1000 - 8GB |
637 | * Others values are invalid |
638 | */ |
639 | u8 unused:4; /* bits 4-7 are unused */ |
640 | u8 boot_drv; /* |
641 | * logical drive set as boot drive |
642 | * 0..7 - for 8LD cards |
643 | * 0..39 - for 40LD cards |
644 | */ |
645 | u8 rsvd[12]; |
646 | u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ |
647 | } __attribute__ ((packed)); |
648 | |
649 | |
650 | |
651 | |
652 | /* |
653 | * Mailbox and firmware commands and subopcodes used in this driver. |
654 | */ |
655 | |
656 | #define MEGA_MBOXCMD_LREAD 0x01 |
657 | #define MEGA_MBOXCMD_LWRITE 0x02 |
658 | #define MEGA_MBOXCMD_PASSTHRU 0x03 |
659 | #define MEGA_MBOXCMD_ADPEXTINQ 0x04 |
660 | #define MEGA_MBOXCMD_ADAPTERINQ 0x05 |
661 | #define MEGA_MBOXCMD_LREAD64 0xA7 |
662 | #define MEGA_MBOXCMD_LWRITE64 0xA8 |
663 | #define MEGA_MBOXCMD_PASSTHRU64 0xC3 |
664 | #define MEGA_MBOXCMD_EXTPTHRU 0xE3 |
665 | |
666 | #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ |
667 | #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ |
668 | |
669 | #define FC_NEW_CONFIG 0xA1 |
670 | #define NC_SUBOP_PRODUCT_INFO 0x0E |
671 | #define NC_SUBOP_ENQUIRY3 0x0F |
672 | #define ENQ3_GET_SOLICITED_FULL 0x02 |
673 | #define OP_DCMD_READ_CONFIG 0x04 |
674 | #define NEW_READ_CONFIG_8LD 0x67 |
675 | #define READ_CONFIG_8LD 0x07 |
676 | #define FLUSH_ADAPTER 0x0A |
677 | #define FLUSH_SYSTEM 0xFE |
678 | |
679 | /* |
680 | * Command for random deletion of logical drives |
681 | */ |
682 | #define FC_DEL_LOGDRV 0xA4 /* f/w command */ |
683 | #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ |
684 | #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ |
685 | #define OP_DEL_LOGDRV 0x1C /* delete logical drive */ |
686 | |
687 | /* |
688 | * BIOS commands |
689 | */ |
690 | #define IS_BIOS_ENABLED 0x62 |
691 | #define GET_BIOS 0x01 |
692 | #define CHNL_CLASS 0xA9 |
693 | #define GET_CHNL_CLASS 0x00 |
694 | #define SET_CHNL_CLASS 0x01 |
695 | #define CH_RAID 0x01 |
696 | #define CH_SCSI 0x00 |
697 | #define BIOS_PVT_DATA 0x40 |
698 | #define GET_BIOS_PVT_DATA 0x00 |
699 | |
700 | |
701 | /* |
702 | * Commands to support clustering |
703 | */ |
704 | #define MEGA_GET_TARGET_ID 0x7D |
705 | #define MEGA_CLUSTER_OP 0x70 |
706 | #define MEGA_GET_CLUSTER_MODE 0x02 |
707 | #define MEGA_CLUSTER_CMD 0x6E |
708 | #define MEGA_RESERVE_LD 0x01 |
709 | #define MEGA_RELEASE_LD 0x02 |
710 | #define MEGA_RESET_RESERVATIONS 0x03 |
711 | #define MEGA_RESERVATION_STATUS 0x04 |
712 | #define MEGA_RESERVE_PD 0x05 |
713 | #define MEGA_RELEASE_PD 0x06 |
714 | |
715 | |
716 | /* |
717 | * Module battery status |
718 | */ |
719 | #define MEGA_BATT_MODULE_MISSING 0x01 |
720 | #define MEGA_BATT_LOW_VOLTAGE 0x02 |
721 | #define MEGA_BATT_TEMP_HIGH 0x04 |
722 | #define MEGA_BATT_PACK_MISSING 0x08 |
723 | #define MEGA_BATT_CHARGE_MASK 0x30 |
724 | #define MEGA_BATT_CHARGE_DONE 0x00 |
725 | #define MEGA_BATT_CHARGE_INPROG 0x10 |
726 | #define MEGA_BATT_CHARGE_FAIL 0x20 |
727 | #define MEGA_BATT_CYCLES_EXCEEDED 0x40 |
728 | |
729 | /* |
730 | * Physical drive states. |
731 | */ |
732 | #define PDRV_UNCNF 0 |
733 | #define PDRV_ONLINE 3 |
734 | #define PDRV_FAILED 4 |
735 | #define PDRV_RBLD 5 |
736 | #define PDRV_HOTSPARE 6 |
737 | |
738 | |
739 | /* |
740 | * Raid logical drive states. |
741 | */ |
742 | #define RDRV_OFFLINE 0 |
743 | #define RDRV_DEGRADED 1 |
744 | #define RDRV_OPTIMAL 2 |
745 | #define RDRV_DELETED 3 |
746 | |
747 | /* |
748 | * Read, write and cache policies |
749 | */ |
750 | #define NO_READ_AHEAD 0 |
751 | #define READ_AHEAD 1 |
752 | #define ADAP_READ_AHEAD 2 |
753 | #define WRMODE_WRITE_THRU 0 |
754 | #define WRMODE_WRITE_BACK 1 |
755 | #define CACHED_IO 0 |
756 | #define DIRECT_IO 1 |
757 | |
758 | |
759 | #define SCSI_LIST(scp) ((struct list_head *)(&(scp)->SCp)) |
760 | |
761 | /* |
762 | * Each controller's soft state |
763 | */ |
764 | typedef struct { |
765 | int this_id; /* our id, may set to different than 7 if |
766 | clustering is available */ |
767 | u32 flag; |
768 | |
769 | unsigned long base; |
770 | void __iomem *mmio_base; |
771 | |
772 | /* mbox64 with mbox not aligned on 16-byte boundary */ |
773 | mbox64_t *una_mbox64; |
774 | dma_addr_t una_mbox64_dma; |
775 | |
776 | volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ |
777 | volatile mbox_t *mbox; /* ptr to standard mailbox */ |
778 | dma_addr_t mbox_dma; |
779 | |
780 | struct pci_dev *dev; |
781 | |
782 | struct list_head free_list; |
783 | struct list_head pending_list; |
784 | struct list_head completed_list; |
785 | |
786 | struct Scsi_Host *host; |
787 | |
788 | #define MEGA_BUFFER_SIZE (2*1024) |
789 | u8 *mega_buffer; |
790 | dma_addr_t buf_dma_handle; |
791 | |
792 | mega_product_info product_info; |
793 | |
794 | u8 max_cmds; |
795 | scb_t *scb_list; |
796 | |
797 | atomic_t pend_cmds; /* maintain a counter for pending |
798 | commands in firmware */ |
799 | |
800 | #if MEGA_HAVE_STATS |
801 | u32 nreads[MAX_LOGICAL_DRIVES_40LD]; |
802 | u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; |
803 | u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; |
804 | u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; |
805 | u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; |
806 | u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; |
807 | #endif |
808 | |
809 | /* Host adapter parameters */ |
810 | u8 numldrv; |
811 | u8 fw_version[7]; |
812 | u8 bios_version[7]; |
813 | |
814 | #ifdef CONFIG_PROC_FS |
815 | struct proc_dir_entry *controller_proc_dir_entry; |
816 | struct proc_dir_entry *proc_read; |
817 | struct proc_dir_entry *proc_stat; |
818 | struct proc_dir_entry *proc_mbox; |
819 | |
820 | #if MEGA_HAVE_ENH_PROC |
821 | struct proc_dir_entry *proc_rr; |
822 | struct proc_dir_entry *proc_battery; |
823 | #define MAX_PROC_CHANNELS 4 |
824 | struct proc_dir_entry *proc_pdrvstat[MAX_PROC_CHANNELS]; |
825 | struct proc_dir_entry *proc_rdrvstat[MAX_PROC_CHANNELS]; |
826 | #endif |
827 | |
828 | #endif |
829 | |
830 | int has_64bit_addr; /* are we using 64-bit addressing */ |
831 | int support_ext_cdb; |
832 | int boot_ldrv_enabled; |
833 | int boot_ldrv; |
834 | int boot_pdrv_enabled; /* boot from physical drive */ |
835 | int boot_pdrv_ch; /* boot physical drive channel */ |
836 | int boot_pdrv_tgt; /* boot physical drive target */ |
837 | |
838 | |
839 | int support_random_del; /* Do we support random deletion of |
840 | logdrvs */ |
841 | int read_ldidmap; /* set after logical drive deltion. The |
842 | logical drive number must be read from the |
843 | map */ |
844 | atomic_t quiescent; /* a stage reached when delete logical |
845 | drive needs to be done. Stop |
846 | sending requests to the hba till |
847 | delete operation is completed */ |
848 | spinlock_t lock; |
849 | |
850 | u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on |
851 | what channels. */ |
852 | int mega_ch_class; |
853 | |
854 | u8 sglen; /* f/w supported scatter-gather list length */ |
855 | |
856 | unsigned char int_cdb[MAX_COMMAND_SIZE]; |
857 | scb_t int_scb; |
858 | struct mutex int_mtx; /* To synchronize the internal |
859 | commands */ |
860 | struct completion int_waitq; /* wait queue for internal |
861 | cmds */ |
862 | |
863 | int has_cluster; /* cluster support on this HBA */ |
864 | }adapter_t; |
865 | |
866 | |
867 | struct mega_hbas { |
868 | int is_bios_enabled; |
869 | adapter_t *hostdata_addr; |
870 | }; |
871 | |
872 | |
873 | /* |
874 | * For state flag. Do not use LSB(8 bits) which are |
875 | * reserved for storing info about channels. |
876 | */ |
877 | #define IN_ABORT 0x80000000L |
878 | #define IN_RESET 0x40000000L |
879 | #define BOARD_MEMMAP 0x20000000L |
880 | #define BOARD_IOMAP 0x10000000L |
881 | #define BOARD_40LD 0x08000000L |
882 | #define BOARD_64BIT 0x04000000L |
883 | |
884 | #define INTR_VALID 0x40 |
885 | |
886 | #define PCI_CONF_AMISIG 0xa0 |
887 | #define PCI_CONF_AMISIG64 0xa4 |
888 | |
889 | |
890 | #define MEGA_DMA_TYPE_NONE 0xFFFF |
891 | #define MEGA_BULK_DATA 0x0001 |
892 | #define MEGA_SGLIST 0x0002 |
893 | |
894 | /* |
895 | * Parameters for the io-mapped controllers |
896 | */ |
897 | |
898 | /* I/O Port offsets */ |
899 | #define CMD_PORT 0x00 |
900 | #define ACK_PORT 0x00 |
901 | #define TOGGLE_PORT 0x01 |
902 | #define INTR_PORT 0x0a |
903 | |
904 | #define MBOX_BUSY_PORT 0x00 |
905 | #define MBOX_PORT0 0x04 |
906 | #define MBOX_PORT1 0x05 |
907 | #define MBOX_PORT2 0x06 |
908 | #define MBOX_PORT3 0x07 |
909 | #define ENABLE_MBOX_REGION 0x0B |
910 | |
911 | /* I/O Port Values */ |
912 | #define ISSUE_BYTE 0x10 |
913 | #define ACK_BYTE 0x08 |
914 | #define ENABLE_INTR_BYTE 0xc0 |
915 | #define DISABLE_INTR_BYTE 0x00 |
916 | #define VALID_INTR_BYTE 0x40 |
917 | #define MBOX_BUSY_BYTE 0x10 |
918 | #define ENABLE_MBOX_BYTE 0x00 |
919 | |
920 | |
921 | /* Setup some port macros here */ |
922 | #define issue_command(adapter) \ |
923 | outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) |
924 | |
925 | #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) |
926 | |
927 | #define set_irq_state(adapter, value) \ |
928 | outb_p((value), (adapter)->base + INTR_PORT) |
929 | |
930 | #define irq_ack(adapter) \ |
931 | outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) |
932 | |
933 | #define irq_enable(adapter) \ |
934 | outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
935 | |
936 | #define irq_disable(adapter) \ |
937 | outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
938 | |
939 | |
940 | /* |
941 | * This is our SYSDEP area. All kernel specific detail should be placed here - |
942 | * as much as possible |
943 | */ |
944 | |
945 | /* |
946 | * End of SYSDEP area |
947 | */ |
948 | |
949 | const char *megaraid_info (struct Scsi_Host *); |
950 | |
951 | static int mega_query_adapter(adapter_t *); |
952 | static int issue_scb(adapter_t *, scb_t *); |
953 | static int mega_setup_mailbox(adapter_t *); |
954 | |
955 | static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); |
956 | static scb_t * mega_build_cmd(adapter_t *, Scsi_Cmnd *, int *); |
957 | static void __mega_runpendq(adapter_t *); |
958 | static int issue_scb_block(adapter_t *, u_char *); |
959 | |
960 | static irqreturn_t megaraid_isr_memmapped(int, void *); |
961 | static irqreturn_t megaraid_isr_iomapped(int, void *); |
962 | |
963 | static void mega_free_scb(adapter_t *, scb_t *); |
964 | |
965 | static int megaraid_abort(Scsi_Cmnd *); |
966 | static int megaraid_reset(Scsi_Cmnd *); |
967 | static int megaraid_abort_and_reset(adapter_t *, Scsi_Cmnd *, int); |
968 | static int megaraid_biosparam(struct scsi_device *, struct block_device *, |
969 | sector_t, int []); |
970 | |
971 | static int mega_build_sglist (adapter_t *adapter, scb_t *scb, |
972 | u32 *buffer, u32 *length); |
973 | static int __mega_busywait_mbox (adapter_t *); |
974 | static void mega_rundoneq (adapter_t *); |
975 | static void mega_cmd_done(adapter_t *, u8 [], int, int); |
976 | static inline void mega_free_sgl (adapter_t *adapter); |
977 | static void mega_8_to_40ld (mraid_inquiry *inquiry, |
978 | mega_inquiry3 *enquiry3, mega_product_info *); |
979 | |
980 | static int megadev_open (struct inode *, struct file *); |
981 | static int megadev_ioctl (struct file *, unsigned int, unsigned long); |
982 | static int mega_m_to_n(void __user *, nitioctl_t *); |
983 | static int mega_n_to_m(void __user *, megacmd_t *); |
984 | |
985 | static int mega_init_scb (adapter_t *); |
986 | |
987 | static int mega_is_bios_enabled (adapter_t *); |
988 | |
989 | #ifdef CONFIG_PROC_FS |
990 | static void mega_create_proc_entry(int, struct proc_dir_entry *); |
991 | static int mega_adapinq(adapter_t *, dma_addr_t); |
992 | static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); |
993 | #endif |
994 | |
995 | static int mega_support_ext_cdb(adapter_t *); |
996 | static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, |
997 | Scsi_Cmnd *, int, int); |
998 | static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, |
999 | scb_t *, Scsi_Cmnd *, int, int); |
1000 | static void mega_enum_raid_scsi(adapter_t *); |
1001 | static void mega_get_boot_drv(adapter_t *); |
1002 | static int mega_support_random_del(adapter_t *); |
1003 | static int mega_del_logdrv(adapter_t *, int); |
1004 | static int mega_do_del_logdrv(adapter_t *, int); |
1005 | static void mega_get_max_sgl(adapter_t *); |
1006 | static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); |
1007 | static void mega_internal_done(Scsi_Cmnd *); |
1008 | static int mega_support_cluster(adapter_t *); |
1009 | #endif |
1010 | |
1011 | /* vi: set ts=8 sw=8 tw=78: */ |
1012 |
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