1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __MEGARAID_H__ |
3 | #define __MEGARAID_H__ |
4 | |
5 | #include <linux/spinlock.h> |
6 | #include <linux/mutex.h> |
7 | #include <scsi/scsi_cmnd.h> |
8 | |
9 | #define MEGARAID_VERSION \ |
10 | "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" |
11 | |
12 | /* |
13 | * Driver features - change the values to enable or disable features in the |
14 | * driver. |
15 | */ |
16 | |
17 | /* |
18 | * Command coalescing - This feature allows the driver to be able to combine |
19 | * two or more commands and issue as one command in order to boost I/O |
20 | * performance. Useful if the nature of the I/O is sequential. It is not very |
21 | * useful for random natured I/Os. |
22 | */ |
23 | #define MEGA_HAVE_COALESCING 0 |
24 | |
25 | /* |
26 | * Clustering support - Set this flag if you are planning to use the |
27 | * clustering services provided by the megaraid controllers and planning to |
28 | * setup a cluster |
29 | */ |
30 | #define MEGA_HAVE_CLUSTERING 1 |
31 | |
32 | /* |
33 | * Driver statistics - Set this flag if you are interested in statics about |
34 | * number of I/O completed on each logical drive and how many interrupts |
35 | * generated. If enabled, this information is available through /proc |
36 | * interface and through the private ioctl. Setting this flag has a |
37 | * performance penalty. |
38 | */ |
39 | #define MEGA_HAVE_STATS 0 |
40 | |
41 | /* |
42 | * Enhanced /proc interface - This feature will allow you to have a more |
43 | * detailed /proc interface for megaraid driver. E.g., a real time update of |
44 | * the status of the logical drives, battery status, physical drives etc. |
45 | */ |
46 | #define MEGA_HAVE_ENH_PROC 1 |
47 | |
48 | #define MAX_DEV_TYPE 32 |
49 | |
50 | #define PCI_DEVICE_ID_DISCOVERY 0x000E |
51 | #define PCI_DEVICE_ID_PERC4_DI 0x000F |
52 | #define PCI_DEVICE_ID_PERC4_QC_VERDE 0x0407 |
53 | |
54 | #define HBA_SIGNATURE 0x3344 |
55 | #define HBA_SIGNATURE_471 0xCCCC |
56 | #define HBA_SIGNATURE_64BIT 0x0299 |
57 | |
58 | #define MBOX_BUSY_WAIT 10 /* wait for up to 10 usec for |
59 | mailbox to be free */ |
60 | #define DEFAULT_INITIATOR_ID 7 |
61 | |
62 | #define MAX_SGLIST 64 /* max supported in f/w */ |
63 | #define MIN_SGLIST 26 /* guaranteed to support these many */ |
64 | #define MAX_COMMANDS 126 |
65 | #define CMDID_INT_CMDS MAX_COMMANDS+1 /* make sure CMDID_INT_CMDS |
66 | is less than max commands |
67 | supported by any f/w */ |
68 | |
69 | #define MAX_CDB_LEN 10 |
70 | #define MAX_EXT_CDB_LEN 16 /* we support cdb length up to 16 */ |
71 | |
72 | #define DEF_CMD_PER_LUN 63 |
73 | #define MAX_CMD_PER_LUN MAX_COMMANDS |
74 | #define MAX_FIRMWARE_STATUS 46 |
75 | #define MAX_XFER_PER_CMD (64*1024) |
76 | #define MAX_SECTORS_PER_IO 128 |
77 | |
78 | #define MAX_LOGICAL_DRIVES_40LD 40 |
79 | #define FC_MAX_PHYSICAL_DEVICES 256 |
80 | #define MAX_LOGICAL_DRIVES_8LD 8 |
81 | #define MAX_CHANNELS 5 |
82 | #define MAX_TARGET 15 |
83 | #define MAX_PHYSICAL_DRIVES MAX_CHANNELS*MAX_TARGET |
84 | #define MAX_ROW_SIZE_40LD 32 |
85 | #define MAX_ROW_SIZE_8LD 8 |
86 | #define MAX_SPAN_DEPTH 8 |
87 | |
88 | #define NVIRT_CHAN 4 /* # of virtual channels to represent |
89 | up to 60 logical drives */ |
90 | struct mbox_out { |
91 | /* 0x0 */ u8 cmd; |
92 | /* 0x1 */ u8 cmdid; |
93 | /* 0x2 */ u16 numsectors; |
94 | /* 0x4 */ u32 lba; |
95 | /* 0x8 */ u32 xferaddr; |
96 | /* 0xC */ u8 logdrv; |
97 | /* 0xD */ u8 numsgelements; |
98 | /* 0xE */ u8 resvd; |
99 | } __attribute__ ((packed)); |
100 | |
101 | struct mbox_in { |
102 | /* 0xF */ volatile u8 busy; |
103 | /* 0x10 */ volatile u8 numstatus; |
104 | /* 0x11 */ volatile u8 status; |
105 | /* 0x12 */ volatile u8 completed[MAX_FIRMWARE_STATUS]; |
106 | volatile u8 poll; |
107 | volatile u8 ack; |
108 | } __attribute__ ((packed)); |
109 | |
110 | typedef struct { |
111 | struct mbox_out m_out; |
112 | struct mbox_in m_in; |
113 | } __attribute__ ((packed)) mbox_t; |
114 | |
115 | typedef struct { |
116 | u32 xfer_segment_lo; |
117 | u32 xfer_segment_hi; |
118 | mbox_t mbox; |
119 | } __attribute__ ((packed)) mbox64_t; |
120 | |
121 | |
122 | /* |
123 | * Passthru definitions |
124 | */ |
125 | #define MAX_REQ_SENSE_LEN 0x20 |
126 | |
127 | typedef struct { |
128 | u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
129 | u8 ars:1; |
130 | u8 reserved:3; |
131 | u8 islogical:1; |
132 | u8 logdrv; /* if islogical == 1 */ |
133 | u8 channel; /* if islogical == 0 */ |
134 | u8 target; /* if islogical == 0 */ |
135 | u8 queuetag; /* unused */ |
136 | u8 queueaction; /* unused */ |
137 | u8 cdb[MAX_CDB_LEN]; |
138 | u8 cdblen; |
139 | u8 reqsenselen; |
140 | u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
141 | u8 numsgelements; |
142 | u8 scsistatus; |
143 | u32 dataxferaddr; |
144 | u32 dataxferlen; |
145 | } __attribute__ ((packed)) mega_passthru; |
146 | |
147 | |
148 | /* |
149 | * Extended passthru: support CDB > 10 bytes |
150 | */ |
151 | typedef struct { |
152 | u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */ |
153 | u8 ars:1; |
154 | u8 rsvd1:1; |
155 | u8 cd_rom:1; |
156 | u8 rsvd2:1; |
157 | u8 islogical:1; |
158 | u8 logdrv; /* if islogical == 1 */ |
159 | u8 channel; /* if islogical == 0 */ |
160 | u8 target; /* if islogical == 0 */ |
161 | u8 queuetag; /* unused */ |
162 | u8 queueaction; /* unused */ |
163 | u8 cdblen; |
164 | u8 rsvd3; |
165 | u8 cdb[MAX_EXT_CDB_LEN]; |
166 | u8 numsgelements; |
167 | u8 status; |
168 | u8 reqsenselen; |
169 | u8 reqsensearea[MAX_REQ_SENSE_LEN]; |
170 | u8 rsvd4; |
171 | u32 dataxferaddr; |
172 | u32 dataxferlen; |
173 | } __attribute__ ((packed)) mega_ext_passthru; |
174 | |
175 | typedef struct { |
176 | u64 address; |
177 | u32 length; |
178 | } __attribute__ ((packed)) mega_sgl64; |
179 | |
180 | typedef struct { |
181 | u32 address; |
182 | u32 length; |
183 | } __attribute__ ((packed)) mega_sglist; |
184 | |
185 | |
186 | /* Queued command data */ |
187 | typedef struct { |
188 | int idx; |
189 | u32 state; |
190 | struct list_head list; |
191 | u8 raw_mbox[66]; |
192 | u32 dma_type; |
193 | u32 dma_direction; |
194 | |
195 | struct scsi_cmnd *cmd; |
196 | dma_addr_t dma_h_bulkdata; |
197 | dma_addr_t dma_h_sgdata; |
198 | |
199 | mega_sglist *sgl; |
200 | mega_sgl64 *sgl64; |
201 | dma_addr_t sgl_dma_addr; |
202 | |
203 | mega_passthru *pthru; |
204 | dma_addr_t pthru_dma_addr; |
205 | mega_ext_passthru *epthru; |
206 | dma_addr_t epthru_dma_addr; |
207 | } scb_t; |
208 | |
209 | /* |
210 | * Flags to follow the scb as it transitions between various stages |
211 | */ |
212 | #define SCB_FREE 0x0000 /* on the free list */ |
213 | #define SCB_ACTIVE 0x0001 /* off the free list */ |
214 | #define SCB_PENDQ 0x0002 /* on the pending queue */ |
215 | #define SCB_ISSUED 0x0004 /* issued - owner f/w */ |
216 | #define SCB_ABORT 0x0008 /* Got an abort for this one */ |
217 | #define SCB_RESET 0x0010 /* Got a reset for this one */ |
218 | |
219 | /* |
220 | * Utilities declare this strcture size as 1024 bytes. So more fields can |
221 | * be added in future. |
222 | */ |
223 | typedef struct { |
224 | u32 data_size; /* current size in bytes (not including resvd) */ |
225 | |
226 | u32 config_signature; |
227 | /* Current value is 0x00282008 |
228 | * 0x28=MAX_LOGICAL_DRIVES, |
229 | * 0x20=Number of stripes and |
230 | * 0x08=Number of spans */ |
231 | |
232 | u8 fw_version[16]; /* printable ASCI string */ |
233 | u8 bios_version[16]; /* printable ASCI string */ |
234 | u8 product_name[80]; /* printable ASCI string */ |
235 | |
236 | u8 max_commands; /* Max. concurrent commands supported */ |
237 | u8 nchannels; /* Number of SCSI Channels detected */ |
238 | u8 fc_loop_present; /* Number of Fibre Loops detected */ |
239 | u8 mem_type; /* EDO, FPM, SDRAM etc */ |
240 | |
241 | u32 signature; |
242 | u16 dram_size; /* In terms of MB */ |
243 | u16 subsysid; |
244 | |
245 | u16 subsysvid; |
246 | u8 notify_counters; |
247 | u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */ |
248 | } __attribute__ ((packed)) mega_product_info; |
249 | |
250 | struct notify { |
251 | u32 global_counter; /* Any change increments this counter */ |
252 | |
253 | u8 param_counter; /* Indicates any params changed */ |
254 | u8 param_id; /* Param modified - defined below */ |
255 | u16 param_val; /* New val of last param modified */ |
256 | |
257 | u8 write_config_counter; /* write config occurred */ |
258 | u8 write_config_rsvd[3]; |
259 | |
260 | u8 ldrv_op_counter; /* Indicates ldrv op started/completed */ |
261 | u8 ldrv_opid; /* ldrv num */ |
262 | u8 ldrv_opcmd; /* ldrv operation - defined below */ |
263 | u8 ldrv_opstatus; /* status of the operation */ |
264 | |
265 | u8 ldrv_state_counter; /* Indicates change of ldrv state */ |
266 | u8 ldrv_state_id; /* ldrv num */ |
267 | u8 ldrv_state_new; /* New state */ |
268 | u8 ldrv_state_old; /* old state */ |
269 | |
270 | u8 pdrv_state_counter; /* Indicates change of ldrv state */ |
271 | u8 pdrv_state_id; /* pdrv id */ |
272 | u8 pdrv_state_new; /* New state */ |
273 | u8 pdrv_state_old; /* old state */ |
274 | |
275 | u8 pdrv_fmt_counter; /* Indicates pdrv format started/over */ |
276 | u8 pdrv_fmt_id; /* pdrv id */ |
277 | u8 pdrv_fmt_val; /* format started/over */ |
278 | u8 pdrv_fmt_rsvd; |
279 | |
280 | u8 targ_xfer_counter; /* Indicates SCSI-2 Xfer rate change */ |
281 | u8 targ_xfer_id; /* pdrv Id */ |
282 | u8 targ_xfer_val; /* new Xfer params of last pdrv */ |
283 | u8 targ_xfer_rsvd; |
284 | |
285 | u8 fcloop_id_chg_counter; /* Indicates loopid changed */ |
286 | u8 fcloopid_pdrvid; /* pdrv id */ |
287 | u8 fcloop_id0; /* loopid on fc loop 0 */ |
288 | u8 fcloop_id1; /* loopid on fc loop 1 */ |
289 | |
290 | u8 fcloop_state_counter; /* Indicates loop state changed */ |
291 | u8 fcloop_state0; /* state of fc loop 0 */ |
292 | u8 fcloop_state1; /* state of fc loop 1 */ |
293 | u8 fcloop_state_rsvd; |
294 | } __attribute__ ((packed)); |
295 | |
296 | #define MAX_NOTIFY_SIZE 0x80 |
297 | #define CUR_NOTIFY_SIZE sizeof(struct notify) |
298 | |
299 | typedef struct { |
300 | u32 data_size; /* current size in bytes (not including resvd) */ |
301 | |
302 | struct notify notify; |
303 | |
304 | u8 notify_rsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE]; |
305 | |
306 | u8 rebuild_rate; /* Rebuild rate (0% - 100%) */ |
307 | u8 cache_flush_interval; /* In terms of Seconds */ |
308 | u8 sense_alert; |
309 | u8 drive_insert_count; /* drive insertion count */ |
310 | |
311 | u8 battery_status; |
312 | u8 num_ldrv; /* No. of Log Drives configured */ |
313 | u8 recon_state[MAX_LOGICAL_DRIVES_40LD / 8]; /* State of |
314 | reconstruct */ |
315 | u16 ldrv_op_status[MAX_LOGICAL_DRIVES_40LD / 8]; /* logdrv |
316 | Status */ |
317 | |
318 | u32 ldrv_size[MAX_LOGICAL_DRIVES_40LD];/* Size of each log drv */ |
319 | u8 ldrv_prop[MAX_LOGICAL_DRIVES_40LD]; |
320 | u8 ldrv_state[MAX_LOGICAL_DRIVES_40LD];/* State of log drives */ |
321 | u8 pdrv_state[FC_MAX_PHYSICAL_DEVICES];/* State of phys drvs. */ |
322 | u16 pdrv_format[FC_MAX_PHYSICAL_DEVICES / 16]; |
323 | |
324 | u8 targ_xfer[80]; /* phys device transfer rate */ |
325 | u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */ |
326 | } __attribute__ ((packed)) mega_inquiry3; |
327 | |
328 | |
329 | /* Structures */ |
330 | typedef struct { |
331 | u8 max_commands; /* Max concurrent commands supported */ |
332 | u8 rebuild_rate; /* Rebuild rate - 0% thru 100% */ |
333 | u8 max_targ_per_chan; /* Max targ per channel */ |
334 | u8 nchannels; /* Number of channels on HBA */ |
335 | u8 fw_version[4]; /* Firmware version */ |
336 | u16 age_of_flash; /* Number of times FW has been flashed */ |
337 | u8 chip_set_value; /* Contents of 0xC0000832 */ |
338 | u8 dram_size; /* In MB */ |
339 | u8 cache_flush_interval; /* in seconds */ |
340 | u8 bios_version[4]; |
341 | u8 board_type; |
342 | u8 sense_alert; |
343 | u8 write_config_count; /* Increase with every configuration |
344 | change */ |
345 | u8 drive_inserted_count; /* Increase with every drive inserted |
346 | */ |
347 | u8 inserted_drive; /* Channel:Id of inserted drive */ |
348 | u8 battery_status; /* |
349 | * BIT 0: battery module missing |
350 | * BIT 1: VBAD |
351 | * BIT 2: temperature high |
352 | * BIT 3: battery pack missing |
353 | * BIT 4,5: |
354 | * 00 - charge complete |
355 | * 01 - fast charge in progress |
356 | * 10 - fast charge fail |
357 | * 11 - undefined |
358 | * Bit 6: counter > 1000 |
359 | * Bit 7: Undefined |
360 | */ |
361 | u8 dec_fault_bus_info; |
362 | } __attribute__ ((packed)) mega_adp_info; |
363 | |
364 | |
365 | typedef struct { |
366 | u8 num_ldrv; /* Number of logical drives configured */ |
367 | u8 rsvd[3]; |
368 | u32 ldrv_size[MAX_LOGICAL_DRIVES_8LD]; |
369 | u8 ldrv_prop[MAX_LOGICAL_DRIVES_8LD]; |
370 | u8 ldrv_state[MAX_LOGICAL_DRIVES_8LD]; |
371 | } __attribute__ ((packed)) mega_ldrv_info; |
372 | |
373 | typedef struct { |
374 | u8 pdrv_state[MAX_PHYSICAL_DRIVES]; |
375 | u8 rsvd; |
376 | } __attribute__ ((packed)) mega_pdrv_info; |
377 | |
378 | /* RAID inquiry: Mailbox command 0x05*/ |
379 | typedef struct { |
380 | mega_adp_info adapter_info; |
381 | mega_ldrv_info logdrv_info; |
382 | mega_pdrv_info pdrv_info; |
383 | } __attribute__ ((packed)) mraid_inquiry; |
384 | |
385 | |
386 | /* RAID extended inquiry: Mailbox command 0x04*/ |
387 | typedef struct { |
388 | mraid_inquiry raid_inq; |
389 | u16 phys_drv_format[MAX_CHANNELS]; |
390 | u8 stack_attn; |
391 | u8 modem_status; |
392 | u8 rsvd[2]; |
393 | } __attribute__ ((packed)) mraid_ext_inquiry; |
394 | |
395 | |
396 | typedef struct { |
397 | u8 channel; |
398 | u8 target; |
399 | }__attribute__ ((packed)) adp_device; |
400 | |
401 | typedef struct { |
402 | u32 start_blk; /* starting block */ |
403 | u32 num_blks; /* # of blocks */ |
404 | adp_device device[MAX_ROW_SIZE_40LD]; |
405 | }__attribute__ ((packed)) adp_span_40ld; |
406 | |
407 | typedef struct { |
408 | u32 start_blk; /* starting block */ |
409 | u32 num_blks; /* # of blocks */ |
410 | adp_device device[MAX_ROW_SIZE_8LD]; |
411 | }__attribute__ ((packed)) adp_span_8ld; |
412 | |
413 | typedef struct { |
414 | u8 span_depth; /* Total # of spans */ |
415 | u8 level; /* RAID level */ |
416 | u8 read_ahead; /* read ahead, no read ahead, adaptive read |
417 | ahead */ |
418 | u8 stripe_sz; /* Encoded stripe size */ |
419 | u8 status; /* Status of the logical drive */ |
420 | u8 write_mode; /* write mode, write_through/write_back */ |
421 | u8 direct_io; /* direct io or through cache */ |
422 | u8 row_size; /* Number of stripes in a row */ |
423 | } __attribute__ ((packed)) logdrv_param; |
424 | |
425 | typedef struct { |
426 | logdrv_param lparam; |
427 | adp_span_40ld span[MAX_SPAN_DEPTH]; |
428 | }__attribute__ ((packed)) logdrv_40ld; |
429 | |
430 | typedef struct { |
431 | logdrv_param lparam; |
432 | adp_span_8ld span[MAX_SPAN_DEPTH]; |
433 | }__attribute__ ((packed)) logdrv_8ld; |
434 | |
435 | typedef struct { |
436 | u8 type; /* Type of the device */ |
437 | u8 cur_status; /* current status of the device */ |
438 | u8 tag_depth; /* Level of tagging */ |
439 | u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ |
440 | u32 size; /* configurable size in terms of 512 byte |
441 | blocks */ |
442 | }__attribute__ ((packed)) phys_drv; |
443 | |
444 | typedef struct { |
445 | u8 nlog_drives; /* number of logical drives */ |
446 | u8 resvd[3]; |
447 | logdrv_40ld ldrv[MAX_LOGICAL_DRIVES_40LD]; |
448 | phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
449 | }__attribute__ ((packed)) disk_array_40ld; |
450 | |
451 | typedef struct { |
452 | u8 nlog_drives; /* number of logical drives */ |
453 | u8 resvd[3]; |
454 | logdrv_8ld ldrv[MAX_LOGICAL_DRIVES_8LD]; |
455 | phys_drv pdrv[MAX_PHYSICAL_DRIVES]; |
456 | }__attribute__ ((packed)) disk_array_8ld; |
457 | |
458 | |
459 | /* |
460 | * User ioctl structure. |
461 | * This structure will be used for Traditional Method ioctl interface |
462 | * commands (0x80),Alternate Buffer Method (0x81) ioctl commands and the |
463 | * Driver ioctls. |
464 | * The Driver ioctl interface handles the commands at the driver level, |
465 | * without being sent to the card. |
466 | */ |
467 | /* system call imposed limit. Change accordingly */ |
468 | #define IOCTL_MAX_DATALEN 4096 |
469 | |
470 | struct uioctl_t { |
471 | u32 inlen; |
472 | u32 outlen; |
473 | union { |
474 | u8 fca[16]; |
475 | struct { |
476 | u8 opcode; |
477 | u8 subopcode; |
478 | u16 adapno; |
479 | #if BITS_PER_LONG == 32 |
480 | u8 *buffer; |
481 | u8 pad[4]; |
482 | #endif |
483 | #if BITS_PER_LONG == 64 |
484 | u8 *buffer; |
485 | #endif |
486 | u32 length; |
487 | } __attribute__ ((packed)) fcs; |
488 | } __attribute__ ((packed)) ui; |
489 | u8 mbox[18]; /* 16 bytes + 2 status bytes */ |
490 | mega_passthru pthru; |
491 | #if BITS_PER_LONG == 32 |
492 | char __user *data; /* buffer <= 4096 for 0x80 commands */ |
493 | char pad[4]; |
494 | #endif |
495 | #if BITS_PER_LONG == 64 |
496 | char __user *data; |
497 | #endif |
498 | } __attribute__ ((packed)); |
499 | |
500 | /* |
501 | * struct mcontroller is used to pass information about the controllers in the |
502 | * system. Its up to the application how to use the information. We are passing |
503 | * as much info about the cards as possible and useful. Before issuing the |
504 | * call to find information about the cards, the application needs to issue a |
505 | * ioctl first to find out the number of controllers in the system. |
506 | */ |
507 | #define MAX_CONTROLLERS 32 |
508 | |
509 | struct mcontroller { |
510 | u64 base; |
511 | u8 irq; |
512 | u8 numldrv; |
513 | u8 pcibus; |
514 | u16 pcidev; |
515 | u8 pcifun; |
516 | u16 pciid; |
517 | u16 pcivendor; |
518 | u8 pcislot; |
519 | u32 uid; |
520 | }; |
521 | |
522 | /* |
523 | * mailbox structure used for internal commands |
524 | */ |
525 | typedef struct { |
526 | u8 cmd; |
527 | u8 cmdid; |
528 | u8 opcode; |
529 | u8 subopcode; |
530 | u32 lba; |
531 | u32 xferaddr; |
532 | u8 logdrv; |
533 | u8 rsvd[3]; |
534 | u8 numstatus; |
535 | u8 status; |
536 | } __attribute__ ((packed)) megacmd_t; |
537 | |
538 | /* |
539 | * Defines for Driver IOCTL interface |
540 | */ |
541 | #define MEGAIOC_MAGIC 'm' |
542 | |
543 | #define MEGAIOC_QNADAP 'm' /* Query # of adapters */ |
544 | #define MEGAIOC_QDRVRVER 'e' /* Query driver version */ |
545 | #define MEGAIOC_QADAPINFO 'g' /* Query adapter information */ |
546 | #define MKADAP(adapno) (MEGAIOC_MAGIC << 8 | (adapno) ) |
547 | #define GETADAP(mkadap) ( (mkadap) ^ MEGAIOC_MAGIC << 8 ) |
548 | |
549 | /* |
550 | * Definition for the new ioctl interface (NIT) |
551 | */ |
552 | |
553 | /* |
554 | * Vendor specific Group-7 commands |
555 | */ |
556 | #define VENDOR_SPECIFIC_COMMANDS 0xE0 |
557 | #define MEGA_INTERNAL_CMD VENDOR_SPECIFIC_COMMANDS + 0x01 |
558 | |
559 | /* |
560 | * The ioctl command. No other command shall be used for this interface |
561 | */ |
562 | #define USCSICMD VENDOR_SPECIFIC_COMMANDS |
563 | |
564 | /* |
565 | * Data direction flags |
566 | */ |
567 | #define UIOC_RD 0x00001 |
568 | #define UIOC_WR 0x00002 |
569 | |
570 | /* |
571 | * ioctl opcodes |
572 | */ |
573 | #define MBOX_CMD 0x00000 /* DCMD or passthru command */ |
574 | #define GET_DRIVER_VER 0x10000 /* Get driver version */ |
575 | #define GET_N_ADAP 0x20000 /* Get number of adapters */ |
576 | #define GET_ADAP_INFO 0x30000 /* Get information about a adapter */ |
577 | #define GET_CAP 0x40000 /* Get ioctl capabilities */ |
578 | #define GET_STATS 0x50000 /* Get statistics, including error info */ |
579 | |
580 | |
581 | /* |
582 | * The ioctl structure. |
583 | * MBOX macro converts a nitioctl_t structure to megacmd_t pointer and |
584 | * MBOX_P macro converts a nitioctl_t pointer to megacmd_t pointer. |
585 | */ |
586 | typedef struct { |
587 | char signature[8]; /* Must contain "MEGANIT" */ |
588 | u32 opcode; /* opcode for the command */ |
589 | u32 adapno; /* adapter number */ |
590 | union { |
591 | u8 __raw_mbox[18]; |
592 | void __user *__uaddr; /* xferaddr for non-mbox cmds */ |
593 | }__ua; |
594 | |
595 | #define uioc_rmbox __ua.__raw_mbox |
596 | #define MBOX(uioc) ((megacmd_t *)&((uioc).__ua.__raw_mbox[0])) |
597 | #define MBOX_P(uioc) ((megacmd_t __user *)&((uioc)->__ua.__raw_mbox[0])) |
598 | #define uioc_uaddr __ua.__uaddr |
599 | |
600 | u32 xferlen; /* xferlen for DCMD and non-mbox |
601 | commands */ |
602 | u32 flags; /* data direction flags */ |
603 | }nitioctl_t; |
604 | |
605 | |
606 | /* |
607 | * I/O statistics for some applications like SNMP agent. The caller must |
608 | * provide the number of logical drives for which status should be reported. |
609 | */ |
610 | typedef struct { |
611 | int num_ldrv; /* Number for logical drives for which the |
612 | status should be reported. */ |
613 | u32 nreads[MAX_LOGICAL_DRIVES_40LD]; /* number of reads for |
614 | each logical drive */ |
615 | u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
616 | read for each logical |
617 | drive */ |
618 | u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; /* number of writes |
619 | for each logical |
620 | drive */ |
621 | u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; /* number of blocks |
622 | writes for each |
623 | logical drive */ |
624 | u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of read |
625 | errors for each |
626 | logical drive */ |
627 | u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; /* number of write |
628 | errors for each |
629 | logical drive */ |
630 | }megastat_t; |
631 | |
632 | |
633 | struct private_bios_data { |
634 | u8 geometry:4; /* |
635 | * bits 0-3 - BIOS geometry |
636 | * 0x0001 - 1GB |
637 | * 0x0010 - 2GB |
638 | * 0x1000 - 8GB |
639 | * Others values are invalid |
640 | */ |
641 | u8 unused:4; /* bits 4-7 are unused */ |
642 | u8 boot_drv; /* |
643 | * logical drive set as boot drive |
644 | * 0..7 - for 8LD cards |
645 | * 0..39 - for 40LD cards |
646 | */ |
647 | u8 rsvd[12]; |
648 | u16 cksum; /* 0-(sum of first 13 bytes of this structure) */ |
649 | } __attribute__ ((packed)); |
650 | |
651 | |
652 | |
653 | |
654 | /* |
655 | * Mailbox and firmware commands and subopcodes used in this driver. |
656 | */ |
657 | |
658 | #define MEGA_MBOXCMD_LREAD 0x01 |
659 | #define MEGA_MBOXCMD_LWRITE 0x02 |
660 | #define MEGA_MBOXCMD_PASSTHRU 0x03 |
661 | #define MEGA_MBOXCMD_ADPEXTINQ 0x04 |
662 | #define MEGA_MBOXCMD_ADAPTERINQ 0x05 |
663 | #define MEGA_MBOXCMD_LREAD64 0xA7 |
664 | #define MEGA_MBOXCMD_LWRITE64 0xA8 |
665 | #define MEGA_MBOXCMD_PASSTHRU64 0xC3 |
666 | #define MEGA_MBOXCMD_EXTPTHRU 0xE3 |
667 | |
668 | #define MAIN_MISC_OPCODE 0xA4 /* f/w misc opcode */ |
669 | #define GET_MAX_SG_SUPPORT 0x01 /* get max sg len supported by f/w */ |
670 | |
671 | #define FC_NEW_CONFIG 0xA1 |
672 | #define NC_SUBOP_PRODUCT_INFO 0x0E |
673 | #define NC_SUBOP_ENQUIRY3 0x0F |
674 | #define ENQ3_GET_SOLICITED_FULL 0x02 |
675 | #define OP_DCMD_READ_CONFIG 0x04 |
676 | #define NEW_READ_CONFIG_8LD 0x67 |
677 | #define READ_CONFIG_8LD 0x07 |
678 | #define FLUSH_ADAPTER 0x0A |
679 | #define FLUSH_SYSTEM 0xFE |
680 | |
681 | /* |
682 | * Command for random deletion of logical drives |
683 | */ |
684 | #define FC_DEL_LOGDRV 0xA4 /* f/w command */ |
685 | #define OP_SUP_DEL_LOGDRV 0x2A /* is feature supported */ |
686 | #define OP_GET_LDID_MAP 0x18 /* get ldid and logdrv number map */ |
687 | #define OP_DEL_LOGDRV 0x1C /* delete logical drive */ |
688 | |
689 | /* |
690 | * BIOS commands |
691 | */ |
692 | #define IS_BIOS_ENABLED 0x62 |
693 | #define GET_BIOS 0x01 |
694 | #define CHNL_CLASS 0xA9 |
695 | #define GET_CHNL_CLASS 0x00 |
696 | #define SET_CHNL_CLASS 0x01 |
697 | #define CH_RAID 0x01 |
698 | #define CH_SCSI 0x00 |
699 | #define BIOS_PVT_DATA 0x40 |
700 | #define GET_BIOS_PVT_DATA 0x00 |
701 | |
702 | |
703 | /* |
704 | * Commands to support clustering |
705 | */ |
706 | #define MEGA_GET_TARGET_ID 0x7D |
707 | #define MEGA_CLUSTER_OP 0x70 |
708 | #define MEGA_GET_CLUSTER_MODE 0x02 |
709 | #define MEGA_CLUSTER_CMD 0x6E |
710 | #define MEGA_RESERVE_LD 0x01 |
711 | #define MEGA_RELEASE_LD 0x02 |
712 | #define MEGA_RESET_RESERVATIONS 0x03 |
713 | #define MEGA_RESERVATION_STATUS 0x04 |
714 | #define MEGA_RESERVE_PD 0x05 |
715 | #define MEGA_RELEASE_PD 0x06 |
716 | |
717 | |
718 | /* |
719 | * Module battery status |
720 | */ |
721 | #define MEGA_BATT_MODULE_MISSING 0x01 |
722 | #define MEGA_BATT_LOW_VOLTAGE 0x02 |
723 | #define MEGA_BATT_TEMP_HIGH 0x04 |
724 | #define MEGA_BATT_PACK_MISSING 0x08 |
725 | #define MEGA_BATT_CHARGE_MASK 0x30 |
726 | #define MEGA_BATT_CHARGE_DONE 0x00 |
727 | #define MEGA_BATT_CHARGE_INPROG 0x10 |
728 | #define MEGA_BATT_CHARGE_FAIL 0x20 |
729 | #define MEGA_BATT_CYCLES_EXCEEDED 0x40 |
730 | |
731 | /* |
732 | * Physical drive states. |
733 | */ |
734 | #define PDRV_UNCNF 0 |
735 | #define PDRV_ONLINE 3 |
736 | #define PDRV_FAILED 4 |
737 | #define PDRV_RBLD 5 |
738 | #define PDRV_HOTSPARE 6 |
739 | |
740 | |
741 | /* |
742 | * Raid logical drive states. |
743 | */ |
744 | #define RDRV_OFFLINE 0 |
745 | #define RDRV_DEGRADED 1 |
746 | #define RDRV_OPTIMAL 2 |
747 | #define RDRV_DELETED 3 |
748 | |
749 | /* |
750 | * Read, write and cache policies |
751 | */ |
752 | #define NO_READ_AHEAD 0 |
753 | #define READ_AHEAD 1 |
754 | #define ADAP_READ_AHEAD 2 |
755 | #define WRMODE_WRITE_THRU 0 |
756 | #define WRMODE_WRITE_BACK 1 |
757 | #define CACHED_IO 0 |
758 | #define DIRECT_IO 1 |
759 | |
760 | struct megaraid_cmd_priv { |
761 | struct list_head entry; |
762 | }; |
763 | |
764 | #define SCSI_LIST(scp) \ |
765 | (&((struct megaraid_cmd_priv *)scsi_cmd_priv(scp))->entry) |
766 | |
767 | struct scsi_cmd_and_priv { |
768 | struct scsi_cmnd cmd; |
769 | struct megaraid_cmd_priv priv; |
770 | }; |
771 | |
772 | static inline struct scsi_cmnd * |
773 | megaraid_to_scsi_cmd(struct megaraid_cmd_priv *cmd_priv) |
774 | { |
775 | /* See also scsi_mq_setup_tags() */ |
776 | BUILD_BUG_ON(sizeof(struct scsi_cmd_and_priv) != |
777 | sizeof(struct scsi_cmnd) + |
778 | sizeof(struct megaraid_cmd_priv)); |
779 | |
780 | return &container_of(cmd_priv, struct scsi_cmd_and_priv, priv)->cmd; |
781 | } |
782 | |
783 | /* |
784 | * Each controller's soft state |
785 | */ |
786 | typedef struct { |
787 | int this_id; /* our id, may set to different than 7 if |
788 | clustering is available */ |
789 | u32 flag; |
790 | |
791 | unsigned long base; |
792 | void __iomem *mmio_base; |
793 | |
794 | /* mbox64 with mbox not aligned on 16-byte boundary */ |
795 | mbox64_t *una_mbox64; |
796 | dma_addr_t una_mbox64_dma; |
797 | |
798 | volatile mbox64_t *mbox64;/* ptr to 64-bit mailbox */ |
799 | volatile mbox_t *mbox; /* ptr to standard mailbox */ |
800 | dma_addr_t mbox_dma; |
801 | |
802 | struct pci_dev *dev; |
803 | |
804 | struct list_head free_list; |
805 | struct list_head pending_list; |
806 | struct list_head completed_list; |
807 | |
808 | struct Scsi_Host *host; |
809 | |
810 | #define MEGA_BUFFER_SIZE (2*1024) |
811 | u8 *mega_buffer; |
812 | dma_addr_t buf_dma_handle; |
813 | |
814 | mega_product_info product_info; |
815 | |
816 | u8 max_cmds; |
817 | scb_t *scb_list; |
818 | |
819 | atomic_t pend_cmds; /* maintain a counter for pending |
820 | commands in firmware */ |
821 | |
822 | #if MEGA_HAVE_STATS |
823 | u32 nreads[MAX_LOGICAL_DRIVES_40LD]; |
824 | u32 nreadblocks[MAX_LOGICAL_DRIVES_40LD]; |
825 | u32 nwrites[MAX_LOGICAL_DRIVES_40LD]; |
826 | u32 nwriteblocks[MAX_LOGICAL_DRIVES_40LD]; |
827 | u32 rd_errors[MAX_LOGICAL_DRIVES_40LD]; |
828 | u32 wr_errors[MAX_LOGICAL_DRIVES_40LD]; |
829 | #endif |
830 | |
831 | /* Host adapter parameters */ |
832 | u8 numldrv; |
833 | u8 fw_version[7]; |
834 | u8 bios_version[7]; |
835 | |
836 | #ifdef CONFIG_PROC_FS |
837 | struct proc_dir_entry *controller_proc_dir_entry; |
838 | #endif |
839 | |
840 | int has_64bit_addr; /* are we using 64-bit addressing */ |
841 | int support_ext_cdb; |
842 | int boot_ldrv_enabled; |
843 | int boot_ldrv; |
844 | int boot_pdrv_enabled; /* boot from physical drive */ |
845 | int boot_pdrv_ch; /* boot physical drive channel */ |
846 | int boot_pdrv_tgt; /* boot physical drive target */ |
847 | |
848 | |
849 | int support_random_del; /* Do we support random deletion of |
850 | logdrvs */ |
851 | int read_ldidmap; /* set after logical drive deltion. The |
852 | logical drive number must be read from the |
853 | map */ |
854 | atomic_t quiescent; /* a stage reached when delete logical |
855 | drive needs to be done. Stop |
856 | sending requests to the hba till |
857 | delete operation is completed */ |
858 | spinlock_t lock; |
859 | |
860 | u8 logdrv_chan[MAX_CHANNELS+NVIRT_CHAN]; /* logical drive are on |
861 | what channels. */ |
862 | int mega_ch_class; |
863 | |
864 | u8 sglen; /* f/w supported scatter-gather list length */ |
865 | |
866 | scb_t int_scb; |
867 | struct mutex int_mtx; /* To synchronize the internal |
868 | commands */ |
869 | int int_status; /* status of internal cmd */ |
870 | struct completion int_waitq; /* wait queue for internal |
871 | cmds */ |
872 | |
873 | int has_cluster; /* cluster support on this HBA */ |
874 | }adapter_t; |
875 | |
876 | |
877 | struct mega_hbas { |
878 | int is_bios_enabled; |
879 | adapter_t *hostdata_addr; |
880 | }; |
881 | |
882 | |
883 | /* |
884 | * For state flag. Do not use LSB(8 bits) which are |
885 | * reserved for storing info about channels. |
886 | */ |
887 | #define IN_ABORT 0x80000000L |
888 | #define IN_RESET 0x40000000L |
889 | #define BOARD_MEMMAP 0x20000000L |
890 | #define BOARD_IOMAP 0x10000000L |
891 | #define BOARD_40LD 0x08000000L |
892 | #define BOARD_64BIT 0x04000000L |
893 | |
894 | #define INTR_VALID 0x40 |
895 | |
896 | #define PCI_CONF_AMISIG 0xa0 |
897 | #define PCI_CONF_AMISIG64 0xa4 |
898 | |
899 | |
900 | #define MEGA_DMA_TYPE_NONE 0xFFFF |
901 | #define MEGA_BULK_DATA 0x0001 |
902 | #define MEGA_SGLIST 0x0002 |
903 | |
904 | /* |
905 | * Parameters for the io-mapped controllers |
906 | */ |
907 | |
908 | /* I/O Port offsets */ |
909 | #define CMD_PORT 0x00 |
910 | #define ACK_PORT 0x00 |
911 | #define TOGGLE_PORT 0x01 |
912 | #define INTR_PORT 0x0a |
913 | |
914 | #define MBOX_BUSY_PORT 0x00 |
915 | #define MBOX_PORT0 0x04 |
916 | #define MBOX_PORT1 0x05 |
917 | #define MBOX_PORT2 0x06 |
918 | #define MBOX_PORT3 0x07 |
919 | #define ENABLE_MBOX_REGION 0x0B |
920 | |
921 | /* I/O Port Values */ |
922 | #define ISSUE_BYTE 0x10 |
923 | #define ACK_BYTE 0x08 |
924 | #define ENABLE_INTR_BYTE 0xc0 |
925 | #define DISABLE_INTR_BYTE 0x00 |
926 | #define VALID_INTR_BYTE 0x40 |
927 | #define MBOX_BUSY_BYTE 0x10 |
928 | #define ENABLE_MBOX_BYTE 0x00 |
929 | |
930 | |
931 | /* Setup some port macros here */ |
932 | #define issue_command(adapter) \ |
933 | outb_p(ISSUE_BYTE, (adapter)->base + CMD_PORT) |
934 | |
935 | #define irq_state(adapter) inb_p((adapter)->base + INTR_PORT) |
936 | |
937 | #define set_irq_state(adapter, value) \ |
938 | outb_p((value), (adapter)->base + INTR_PORT) |
939 | |
940 | #define irq_ack(adapter) \ |
941 | outb_p(ACK_BYTE, (adapter)->base + ACK_PORT) |
942 | |
943 | #define irq_enable(adapter) \ |
944 | outb_p(ENABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
945 | |
946 | #define irq_disable(adapter) \ |
947 | outb_p(DISABLE_INTR_BYTE, (adapter)->base + TOGGLE_PORT) |
948 | |
949 | |
950 | /* |
951 | * This is our SYSDEP area. All kernel specific detail should be placed here - |
952 | * as much as possible |
953 | */ |
954 | |
955 | /* |
956 | * End of SYSDEP area |
957 | */ |
958 | |
959 | const char *megaraid_info (struct Scsi_Host *); |
960 | |
961 | static int mega_query_adapter(adapter_t *); |
962 | static int issue_scb(adapter_t *, scb_t *); |
963 | static int mega_setup_mailbox(adapter_t *); |
964 | |
965 | static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); |
966 | static scb_t * mega_build_cmd(adapter_t *, struct scsi_cmnd *, int *); |
967 | static void __mega_runpendq(adapter_t *); |
968 | static int issue_scb_block(adapter_t *, u_char *); |
969 | |
970 | static irqreturn_t megaraid_isr_memmapped(int, void *); |
971 | static irqreturn_t megaraid_isr_iomapped(int, void *); |
972 | |
973 | static void mega_free_scb(adapter_t *, scb_t *); |
974 | |
975 | static int megaraid_abort(struct scsi_cmnd *); |
976 | static int megaraid_reset(struct scsi_cmnd *); |
977 | static int megaraid_abort_and_reset(adapter_t *, struct scsi_cmnd *, int); |
978 | static int megaraid_biosparam(struct scsi_device *, struct block_device *, |
979 | sector_t, int []); |
980 | |
981 | static int mega_build_sglist (adapter_t *adapter, scb_t *scb, |
982 | u32 *buffer, u32 *length); |
983 | static int __mega_busywait_mbox (adapter_t *); |
984 | static void mega_rundoneq (adapter_t *); |
985 | static void mega_cmd_done(adapter_t *, u8 [], int, int); |
986 | static inline void mega_free_sgl (adapter_t *adapter); |
987 | static void mega_8_to_40ld (mraid_inquiry *inquiry, |
988 | mega_inquiry3 *enquiry3, mega_product_info *); |
989 | |
990 | static int megadev_open (struct inode *, struct file *); |
991 | static int megadev_ioctl (struct file *, unsigned int, unsigned long); |
992 | static int mega_m_to_n(void __user *, nitioctl_t *); |
993 | static int mega_n_to_m(void __user *, megacmd_t *); |
994 | |
995 | static int mega_init_scb (adapter_t *); |
996 | |
997 | static int mega_is_bios_enabled (adapter_t *); |
998 | |
999 | #ifdef CONFIG_PROC_FS |
1000 | static void mega_create_proc_entry(int, struct proc_dir_entry *); |
1001 | static int mega_adapinq(adapter_t *, dma_addr_t); |
1002 | static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); |
1003 | #endif |
1004 | |
1005 | static int mega_support_ext_cdb(adapter_t *); |
1006 | static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, |
1007 | struct scsi_cmnd *, int, int); |
1008 | static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, |
1009 | scb_t *, struct scsi_cmnd *, int, int); |
1010 | static void mega_enum_raid_scsi(adapter_t *); |
1011 | static void mega_get_boot_drv(adapter_t *); |
1012 | static int mega_support_random_del(adapter_t *); |
1013 | static int mega_del_logdrv(adapter_t *, int); |
1014 | static int mega_do_del_logdrv(adapter_t *, int); |
1015 | static void mega_get_max_sgl(adapter_t *); |
1016 | static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); |
1017 | static int mega_support_cluster(adapter_t *); |
1018 | #endif |
1019 | |
1020 | /* vi: set ts=8 sw=8 tw=78: */ |
1021 | |