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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __MEGARAID_H__ |
3 | #define __MEGARAID_H__ | |
4 | ||
5 | #include <linux/spinlock.h> | |
0b950672 | 6 | #include <linux/mutex.h> |
fb597392 | 7 | #include <scsi/scsi_cmnd.h> |
1da177e4 LT |
8 | |
9 | #define MEGARAID_VERSION \ | |
3542adcb | 10 | "v2.00.4 (Release Date: Thu Feb 9 08:51:30 EST 2006)\n" |
1da177e4 LT |
11 | |
12 | /* | |
13 | * Driver features - change the values to enable or disable features in the | |
14 | * driver. | |
15 | */ | |
16 | ||
17 | /* | |
b595076a | 18 | * Command coalescing - This feature allows the driver to be able to combine |
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
91ebc1fa | 195 | struct scsi_cmnd *cmd; |
1da177e4 LT |
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 | |
af901ca1 | 351 | * BIT 2: temperature high |
1da177e4 LT |
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 */ | |
4b512d26 | 439 | u8 sync_neg; /* sync negotiation - ENABLE or DISABLE */ |
1da177e4 LT |
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 | |
25985edc | 502 | * system. Its up to the application how to use the information. We are passing |
1da177e4 | 503 | * as much info about the cards as possible and useful. Before issuing the |
25985edc | 504 | * call to find information about the cards, the application needs to issue a |
1da177e4 LT |
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 | ||
fb597392 BVA |
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)); | |
1da177e4 | 779 | |
fb597392 BVA |
780 | return &container_of(cmd_priv, struct scsi_cmd_and_priv, priv)->cmd; |
781 | } | |
1da177e4 LT |
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 | ||
00769ec4 JG |
791 | unsigned long base; |
792 | void __iomem *mmio_base; | |
1da177e4 | 793 | |
25985edc | 794 | /* mbox64 with mbox not aligned on 16-byte boundary */ |
1da177e4 LT |
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; | |
1da177e4 LT |
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; | |
0b950672 | 867 | struct mutex int_mtx; /* To synchronize the internal |
1da177e4 | 868 | commands */ |
0f2bb84d | 869 | int int_status; /* status of internal cmd */ |
8d115f84 | 870 | struct completion int_waitq; /* wait queue for internal |
1da177e4 LT |
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 | ||
1da177e4 LT |
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 | ||
f281233d | 965 | static int megaraid_queue (struct Scsi_Host *, struct scsi_cmnd *); |
91ebc1fa | 966 | static scb_t * mega_build_cmd(adapter_t *, struct scsi_cmnd *, int *); |
1da177e4 LT |
967 | static void __mega_runpendq(adapter_t *); |
968 | static int issue_scb_block(adapter_t *, u_char *); | |
969 | ||
7d12e780 DH |
970 | static irqreturn_t megaraid_isr_memmapped(int, void *); |
971 | static irqreturn_t megaraid_isr_iomapped(int, void *); | |
1da177e4 LT |
972 | |
973 | static void mega_free_scb(adapter_t *, scb_t *); | |
974 | ||
91ebc1fa JT |
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); | |
1da177e4 LT |
978 | static int megaraid_biosparam(struct scsi_device *, struct block_device *, |
979 | sector_t, int []); | |
1da177e4 LT |
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 *); | |
f4927c45 | 991 | static int megadev_ioctl (struct file *, unsigned int, unsigned long); |
1da177e4 LT |
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 *); | |
1da177e4 LT |
1001 | static int mega_adapinq(adapter_t *, dma_addr_t); |
1002 | static int mega_internal_dev_inquiry(adapter_t *, u8, u8, dma_addr_t); | |
84a3c97b | 1003 | #endif |
1da177e4 LT |
1004 | |
1005 | static int mega_support_ext_cdb(adapter_t *); | |
1006 | static mega_passthru* mega_prepare_passthru(adapter_t *, scb_t *, | |
91ebc1fa | 1007 | struct scsi_cmnd *, int, int); |
1da177e4 | 1008 | static mega_ext_passthru* mega_prepare_extpassthru(adapter_t *, |
91ebc1fa | 1009 | scb_t *, struct scsi_cmnd *, int, int); |
1da177e4 LT |
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 *); | |
cb0258a2 | 1016 | static int mega_internal_command(adapter_t *, megacmd_t *, mega_passthru *); |
1da177e4 LT |
1017 | static int mega_support_cluster(adapter_t *); |
1018 | #endif | |
1019 | ||
1020 | /* vi: set ts=8 sw=8 tw=78: */ |