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Merge tag 'staging-3.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
[linux/fpc-iii.git] / drivers / scsi / megaraid / megaraid_sas_fusion.h
blobf68a3cd11d5d93023cde1cb61b8299b236c902ba
1 /*
2 * Linux MegaRAID driver for SAS based RAID controllers
3 *
4 * Copyright (c) 2009-2012 LSI Corporation.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 *
20 * FILE: megaraid_sas_fusion.h
21 *
22 * Authors: LSI Corporation
23 * Manoj Jose
24 * Sumant Patro
25 *
26 * Send feedback to: <megaraidlinux@lsi.com>
27 *
28 * Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
29 * ATTN: Linuxraid
30 */
31
32 #ifndef _MEGARAID_SAS_FUSION_H_
33 #define _MEGARAID_SAS_FUSION_H_
34
35 /* Fusion defines */
36 #define MEGASAS_MAX_SZ_CHAIN_FRAME 1024
37 #define MFI_FUSION_ENABLE_INTERRUPT_MASK (0x00000009)
38 #define MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE 256
39 #define MEGASAS_MPI2_FUNCTION_PASSTHRU_IO_REQUEST 0xF0
40 #define MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST 0xF1
41 #define MEGASAS_LOAD_BALANCE_FLAG 0x1
42 #define MEGASAS_DCMD_MBOX_PEND_FLAG 0x1
43 #define HOST_DIAG_WRITE_ENABLE 0x80
44 #define HOST_DIAG_RESET_ADAPTER 0x4
45 #define MEGASAS_FUSION_MAX_RESET_TRIES 3
46 #define MAX_MSIX_QUEUES_FUSION 16
47
48 /* Invader defines */
49 #define MPI2_TYPE_CUDA 0x2
50 #define MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH 0x4000
51 #define MR_RL_FLAGS_GRANT_DESTINATION_CPU0 0x00
52 #define MR_RL_FLAGS_GRANT_DESTINATION_CPU1 0x10
53 #define MR_RL_FLAGS_GRANT_DESTINATION_CUDA 0x80
54 #define MR_RL_FLAGS_SEQ_NUM_ENABLE 0x8
55
56 /* T10 PI defines */
57 #define MR_PROT_INFO_TYPE_CONTROLLER 0x8
58 #define MEGASAS_SCSI_VARIABLE_LENGTH_CMD 0x7f
59 #define MEGASAS_SCSI_SERVICE_ACTION_READ32 0x9
60 #define MEGASAS_SCSI_SERVICE_ACTION_WRITE32 0xB
61 #define MEGASAS_SCSI_ADDL_CDB_LEN 0x18
62 #define MEGASAS_RD_WR_PROTECT_CHECK_ALL 0x20
63 #define MEGASAS_RD_WR_PROTECT_CHECK_NONE 0x60
64
65 /*
66 * Raid context flags
67 */
68
69 #define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT 0x4
70 #define MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_MASK 0x30
71 enum MR_RAID_FLAGS_IO_SUB_TYPE {
72 MR_RAID_FLAGS_IO_SUB_TYPE_NONE = 0,
73 MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD = 1,
74 };
75
76 /*
77 * Request descriptor types
78 */
79 #define MEGASAS_REQ_DESCRIPT_FLAGS_LD_IO 0x7
80 #define MEGASAS_REQ_DESCRIPT_FLAGS_MFA 0x1
81 #define MEGASAS_REQ_DESCRIPT_FLAGS_NO_LOCK 0x2
82 #define MEGASAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT 1
83
84 #define MEGASAS_FP_CMD_LEN 16
85 #define MEGASAS_FUSION_IN_RESET 0
86
87 /*
88 * Raid Context structure which describes MegaRAID specific IO Paramenters
89 * This resides at offset 0x60 where the SGL normally starts in MPT IO Frames
90 */
91
92 struct RAID_CONTEXT {
93 u8 Type:4;
94 u8 nseg:4;
95 u8 resvd0;
96 u16 timeoutValue;
97 u8 regLockFlags;
98 u8 resvd1;
99 u16 VirtualDiskTgtId;
100 u64 regLockRowLBA;
101 u32 regLockLength;
102 u16 nextLMId;
103 u8 exStatus;
104 u8 status;
105 u8 RAIDFlags;
106 u8 numSGE;
107 u16 configSeqNum;
108 u8 spanArm;
109 u8 resvd2[3];
110 };
111
112 #define RAID_CTX_SPANARM_ARM_SHIFT (0)
113 #define RAID_CTX_SPANARM_ARM_MASK (0x1f)
114
115 #define RAID_CTX_SPANARM_SPAN_SHIFT (5)
116 #define RAID_CTX_SPANARM_SPAN_MASK (0xE0)
117
118 /*
119 * define region lock types
120 */
121 enum REGION_TYPE {
122 REGION_TYPE_UNUSED = 0,
123 REGION_TYPE_SHARED_READ = 1,
124 REGION_TYPE_SHARED_WRITE = 2,
125 REGION_TYPE_EXCLUSIVE = 3,
126 };
127
128 /* MPI2 defines */
129 #define MPI2_FUNCTION_IOC_INIT (0x02) /* IOC Init */
130 #define MPI2_WHOINIT_HOST_DRIVER (0x04)
131 #define MPI2_VERSION_MAJOR (0x02)
132 #define MPI2_VERSION_MINOR (0x00)
133 #define MPI2_VERSION_MAJOR_MASK (0xFF00)
134 #define MPI2_VERSION_MAJOR_SHIFT (8)
135 #define MPI2_VERSION_MINOR_MASK (0x00FF)
136 #define MPI2_VERSION_MINOR_SHIFT (0)
137 #define MPI2_VERSION ((MPI2_VERSION_MAJOR << MPI2_VERSION_MAJOR_SHIFT) | \
138 MPI2_VERSION_MINOR)
139 #define MPI2_HEADER_VERSION_UNIT (0x10)
140 #define MPI2_HEADER_VERSION_DEV (0x00)
141 #define MPI2_HEADER_VERSION_UNIT_MASK (0xFF00)
142 #define MPI2_HEADER_VERSION_UNIT_SHIFT (8)
143 #define MPI2_HEADER_VERSION_DEV_MASK (0x00FF)
144 #define MPI2_HEADER_VERSION_DEV_SHIFT (0)
145 #define MPI2_HEADER_VERSION ((MPI2_HEADER_VERSION_UNIT << 8) | \
146 MPI2_HEADER_VERSION_DEV)
147 #define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR (0x03)
148 #define MPI2_SCSIIO_EEDPFLAGS_INC_PRI_REFTAG (0x8000)
149 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_REFTAG (0x0400)
150 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_REMOVE_OP (0x0003)
151 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_APPTAG (0x0200)
152 #define MPI2_SCSIIO_EEDPFLAGS_CHECK_GUARD (0x0100)
153 #define MPI2_SCSIIO_EEDPFLAGS_INSERT_OP (0x0004)
154 #define MPI2_FUNCTION_SCSI_IO_REQUEST (0x00) /* SCSI IO */
155 #define MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY (0x06)
156 #define MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO (0x00)
157 #define MPI2_SGE_FLAGS_64_BIT_ADDRESSING (0x02)
158 #define MPI2_SCSIIO_CONTROL_WRITE (0x01000000)
159 #define MPI2_SCSIIO_CONTROL_READ (0x02000000)
160 #define MPI2_REQ_DESCRIPT_FLAGS_TYPE_MASK (0x0E)
161 #define MPI2_RPY_DESCRIPT_FLAGS_UNUSED (0x0F)
162 #define MPI2_RPY_DESCRIPT_FLAGS_SCSI_IO_SUCCESS (0x00)
163 #define MPI2_RPY_DESCRIPT_FLAGS_TYPE_MASK (0x0F)
164 #define MPI2_WRSEQ_FLUSH_KEY_VALUE (0x0)
165 #define MPI2_WRITE_SEQUENCE_OFFSET (0x00000004)
166 #define MPI2_WRSEQ_1ST_KEY_VALUE (0xF)
167 #define MPI2_WRSEQ_2ND_KEY_VALUE (0x4)
168 #define MPI2_WRSEQ_3RD_KEY_VALUE (0xB)
169 #define MPI2_WRSEQ_4TH_KEY_VALUE (0x2)
170 #define MPI2_WRSEQ_5TH_KEY_VALUE (0x7)
171 #define MPI2_WRSEQ_6TH_KEY_VALUE (0xD)
172
173 struct MPI25_IEEE_SGE_CHAIN64 {
174 u64 Address;
175 u32 Length;
176 u16 Reserved1;
177 u8 NextChainOffset;
178 u8 Flags;
179 };
180
181 struct MPI2_SGE_SIMPLE_UNION {
182 u32 FlagsLength;
183 union {
184 u32 Address32;
185 u64 Address64;
186 } u;
187 };
188
189 struct MPI2_SCSI_IO_CDB_EEDP32 {
190 u8 CDB[20]; /* 0x00 */
191 u32 PrimaryReferenceTag; /* 0x14 */
192 u16 PrimaryApplicationTag; /* 0x18 */
193 u16 PrimaryApplicationTagMask; /* 0x1A */
194 u32 TransferLength; /* 0x1C */
195 };
196
197 struct MPI2_SGE_CHAIN_UNION {
198 u16 Length;
199 u8 NextChainOffset;
200 u8 Flags;
201 union {
202 u32 Address32;
203 u64 Address64;
204 } u;
205 };
206
207 struct MPI2_IEEE_SGE_SIMPLE32 {
208 u32 Address;
209 u32 FlagsLength;
210 };
211
212 struct MPI2_IEEE_SGE_CHAIN32 {
213 u32 Address;
214 u32 FlagsLength;
215 };
216
217 struct MPI2_IEEE_SGE_SIMPLE64 {
218 u64 Address;
219 u32 Length;
220 u16 Reserved1;
221 u8 Reserved2;
222 u8 Flags;
223 };
224
225 struct MPI2_IEEE_SGE_CHAIN64 {
226 u64 Address;
227 u32 Length;
228 u16 Reserved1;
229 u8 Reserved2;
230 u8 Flags;
231 };
232
233 union MPI2_IEEE_SGE_SIMPLE_UNION {
234 struct MPI2_IEEE_SGE_SIMPLE32 Simple32;
235 struct MPI2_IEEE_SGE_SIMPLE64 Simple64;
236 };
237
238 union MPI2_IEEE_SGE_CHAIN_UNION {
239 struct MPI2_IEEE_SGE_CHAIN32 Chain32;
240 struct MPI2_IEEE_SGE_CHAIN64 Chain64;
241 };
242
243 union MPI2_SGE_IO_UNION {
244 struct MPI2_SGE_SIMPLE_UNION MpiSimple;
245 struct MPI2_SGE_CHAIN_UNION MpiChain;
246 union MPI2_IEEE_SGE_SIMPLE_UNION IeeeSimple;
247 union MPI2_IEEE_SGE_CHAIN_UNION IeeeChain;
248 };
249
250 union MPI2_SCSI_IO_CDB_UNION {
251 u8 CDB32[32];
252 struct MPI2_SCSI_IO_CDB_EEDP32 EEDP32;
253 struct MPI2_SGE_SIMPLE_UNION SGE;
254 };
255
256 /*
257 * RAID SCSI IO Request Message
258 * Total SGE count will be one less than _MPI2_SCSI_IO_REQUEST
259 */
260 struct MPI2_RAID_SCSI_IO_REQUEST {
261 u16 DevHandle; /* 0x00 */
262 u8 ChainOffset; /* 0x02 */
263 u8 Function; /* 0x03 */
264 u16 Reserved1; /* 0x04 */
265 u8 Reserved2; /* 0x06 */
266 u8 MsgFlags; /* 0x07 */
267 u8 VP_ID; /* 0x08 */
268 u8 VF_ID; /* 0x09 */
269 u16 Reserved3; /* 0x0A */
270 u32 SenseBufferLowAddress; /* 0x0C */
271 u16 SGLFlags; /* 0x10 */
272 u8 SenseBufferLength; /* 0x12 */
273 u8 Reserved4; /* 0x13 */
274 u8 SGLOffset0; /* 0x14 */
275 u8 SGLOffset1; /* 0x15 */
276 u8 SGLOffset2; /* 0x16 */
277 u8 SGLOffset3; /* 0x17 */
278 u32 SkipCount; /* 0x18 */
279 u32 DataLength; /* 0x1C */
280 u32 BidirectionalDataLength; /* 0x20 */
281 u16 IoFlags; /* 0x24 */
282 u16 EEDPFlags; /* 0x26 */
283 u32 EEDPBlockSize; /* 0x28 */
284 u32 SecondaryReferenceTag; /* 0x2C */
285 u16 SecondaryApplicationTag; /* 0x30 */
286 u16 ApplicationTagTranslationMask; /* 0x32 */
287 u8 LUN[8]; /* 0x34 */
288 u32 Control; /* 0x3C */
289 union MPI2_SCSI_IO_CDB_UNION CDB; /* 0x40 */
290 struct RAID_CONTEXT RaidContext; /* 0x60 */
291 union MPI2_SGE_IO_UNION SGL; /* 0x80 */
292 };
293
294 /*
295 * MPT RAID MFA IO Descriptor.
296 */
297 struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR {
298 u32 RequestFlags:8;
299 u32 MessageAddress1:24; /* bits 31:8*/
300 u32 MessageAddress2; /* bits 61:32 */
301 };
302
303 /* Default Request Descriptor */
304 struct MPI2_DEFAULT_REQUEST_DESCRIPTOR {
305 u8 RequestFlags; /* 0x00 */
306 u8 MSIxIndex; /* 0x01 */
307 u16 SMID; /* 0x02 */
308 u16 LMID; /* 0x04 */
309 u16 DescriptorTypeDependent; /* 0x06 */
310 };
311
312 /* High Priority Request Descriptor */
313 struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR {
314 u8 RequestFlags; /* 0x00 */
315 u8 MSIxIndex; /* 0x01 */
316 u16 SMID; /* 0x02 */
317 u16 LMID; /* 0x04 */
318 u16 Reserved1; /* 0x06 */
319 };
320
321 /* SCSI IO Request Descriptor */
322 struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR {
323 u8 RequestFlags; /* 0x00 */
324 u8 MSIxIndex; /* 0x01 */
325 u16 SMID; /* 0x02 */
326 u16 LMID; /* 0x04 */
327 u16 DevHandle; /* 0x06 */
328 };
329
330 /* SCSI Target Request Descriptor */
331 struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR {
332 u8 RequestFlags; /* 0x00 */
333 u8 MSIxIndex; /* 0x01 */
334 u16 SMID; /* 0x02 */
335 u16 LMID; /* 0x04 */
336 u16 IoIndex; /* 0x06 */
337 };
338
339 /* RAID Accelerator Request Descriptor */
340 struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR {
341 u8 RequestFlags; /* 0x00 */
342 u8 MSIxIndex; /* 0x01 */
343 u16 SMID; /* 0x02 */
344 u16 LMID; /* 0x04 */
345 u16 Reserved; /* 0x06 */
346 };
347
348 /* union of Request Descriptors */
349 union MEGASAS_REQUEST_DESCRIPTOR_UNION {
350 struct MPI2_DEFAULT_REQUEST_DESCRIPTOR Default;
351 struct MPI2_HIGH_PRIORITY_REQUEST_DESCRIPTOR HighPriority;
352 struct MPI2_SCSI_IO_REQUEST_DESCRIPTOR SCSIIO;
353 struct MPI2_SCSI_TARGET_REQUEST_DESCRIPTOR SCSITarget;
354 struct MPI2_RAID_ACCEL_REQUEST_DESCRIPTOR RAIDAccelerator;
355 struct MEGASAS_RAID_MFA_IO_REQUEST_DESCRIPTOR MFAIo;
356 union {
357 struct {
358 u32 low;
359 u32 high;
360 } u;
361 u64 Words;
362 };
363 };
364
365 /* Default Reply Descriptor */
366 struct MPI2_DEFAULT_REPLY_DESCRIPTOR {
367 u8 ReplyFlags; /* 0x00 */
368 u8 MSIxIndex; /* 0x01 */
369 u16 DescriptorTypeDependent1; /* 0x02 */
370 u32 DescriptorTypeDependent2; /* 0x04 */
371 };
372
373 /* Address Reply Descriptor */
374 struct MPI2_ADDRESS_REPLY_DESCRIPTOR {
375 u8 ReplyFlags; /* 0x00 */
376 u8 MSIxIndex; /* 0x01 */
377 u16 SMID; /* 0x02 */
378 u32 ReplyFrameAddress; /* 0x04 */
379 };
380
381 /* SCSI IO Success Reply Descriptor */
382 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR {
383 u8 ReplyFlags; /* 0x00 */
384 u8 MSIxIndex; /* 0x01 */
385 u16 SMID; /* 0x02 */
386 u16 TaskTag; /* 0x04 */
387 u16 Reserved1; /* 0x06 */
388 };
389
390 /* TargetAssist Success Reply Descriptor */
391 struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR {
392 u8 ReplyFlags; /* 0x00 */
393 u8 MSIxIndex; /* 0x01 */
394 u16 SMID; /* 0x02 */
395 u8 SequenceNumber; /* 0x04 */
396 u8 Reserved1; /* 0x05 */
397 u16 IoIndex; /* 0x06 */
398 };
399
400 /* Target Command Buffer Reply Descriptor */
401 struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR {
402 u8 ReplyFlags; /* 0x00 */
403 u8 MSIxIndex; /* 0x01 */
404 u8 VP_ID; /* 0x02 */
405 u8 Flags; /* 0x03 */
406 u16 InitiatorDevHandle; /* 0x04 */
407 u16 IoIndex; /* 0x06 */
408 };
409
410 /* RAID Accelerator Success Reply Descriptor */
411 struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR {
412 u8 ReplyFlags; /* 0x00 */
413 u8 MSIxIndex; /* 0x01 */
414 u16 SMID; /* 0x02 */
415 u32 Reserved; /* 0x04 */
416 };
417
418 /* union of Reply Descriptors */
419 union MPI2_REPLY_DESCRIPTORS_UNION {
420 struct MPI2_DEFAULT_REPLY_DESCRIPTOR Default;
421 struct MPI2_ADDRESS_REPLY_DESCRIPTOR AddressReply;
422 struct MPI2_SCSI_IO_SUCCESS_REPLY_DESCRIPTOR SCSIIOSuccess;
423 struct MPI2_TARGETASSIST_SUCCESS_REPLY_DESCRIPTOR TargetAssistSuccess;
424 struct MPI2_TARGET_COMMAND_BUFFER_REPLY_DESCRIPTOR TargetCommandBuffer;
425 struct MPI2_RAID_ACCELERATOR_SUCCESS_REPLY_DESCRIPTOR
426 RAIDAcceleratorSuccess;
427 u64 Words;
428 };
429
430 /* IOCInit Request message */
431 struct MPI2_IOC_INIT_REQUEST {
432 u8 WhoInit; /* 0x00 */
433 u8 Reserved1; /* 0x01 */
434 u8 ChainOffset; /* 0x02 */
435 u8 Function; /* 0x03 */
436 u16 Reserved2; /* 0x04 */
437 u8 Reserved3; /* 0x06 */
438 u8 MsgFlags; /* 0x07 */
439 u8 VP_ID; /* 0x08 */
440 u8 VF_ID; /* 0x09 */
441 u16 Reserved4; /* 0x0A */
442 u16 MsgVersion; /* 0x0C */
443 u16 HeaderVersion; /* 0x0E */
444 u32 Reserved5; /* 0x10 */
445 u16 Reserved6; /* 0x14 */
446 u8 Reserved7; /* 0x16 */
447 u8 HostMSIxVectors; /* 0x17 */
448 u16 Reserved8; /* 0x18 */
449 u16 SystemRequestFrameSize; /* 0x1A */
450 u16 ReplyDescriptorPostQueueDepth; /* 0x1C */
451 u16 ReplyFreeQueueDepth; /* 0x1E */
452 u32 SenseBufferAddressHigh; /* 0x20 */
453 u32 SystemReplyAddressHigh; /* 0x24 */
454 u64 SystemRequestFrameBaseAddress; /* 0x28 */
455 u64 ReplyDescriptorPostQueueAddress;/* 0x30 */
456 u64 ReplyFreeQueueAddress; /* 0x38 */
457 u64 TimeStamp; /* 0x40 */
458 };
459
460 /* mrpriv defines */
461 #define MR_PD_INVALID 0xFFFF
462 #define MAX_SPAN_DEPTH 8
463 #define MAX_RAIDMAP_SPAN_DEPTH (MAX_SPAN_DEPTH)
464 #define MAX_ROW_SIZE 32
465 #define MAX_RAIDMAP_ROW_SIZE (MAX_ROW_SIZE)
466 #define MAX_LOGICAL_DRIVES 64
467 #define MAX_RAIDMAP_LOGICAL_DRIVES (MAX_LOGICAL_DRIVES)
468 #define MAX_RAIDMAP_VIEWS (MAX_LOGICAL_DRIVES)
469 #define MAX_ARRAYS 128
470 #define MAX_RAIDMAP_ARRAYS (MAX_ARRAYS)
471 #define MAX_PHYSICAL_DEVICES 256
472 #define MAX_RAIDMAP_PHYSICAL_DEVICES (MAX_PHYSICAL_DEVICES)
473 #define MR_DCMD_LD_MAP_GET_INFO 0x0300e101
474
475 struct MR_DEV_HANDLE_INFO {
476 u16 curDevHdl;
477 u8 validHandles;
478 u8 reserved;
479 u16 devHandle[2];
480 };
481
482 struct MR_ARRAY_INFO {
483 u16 pd[MAX_RAIDMAP_ROW_SIZE];
484 };
485
486 struct MR_QUAD_ELEMENT {
487 u64 logStart;
488 u64 logEnd;
489 u64 offsetInSpan;
490 u32 diff;
491 u32 reserved1;
492 };
493
494 struct MR_SPAN_INFO {
495 u32 noElements;
496 u32 reserved1;
497 struct MR_QUAD_ELEMENT quad[MAX_RAIDMAP_SPAN_DEPTH];
498 };
499
500 struct MR_LD_SPAN {
501 u64 startBlk;
502 u64 numBlks;
503 u16 arrayRef;
504 u8 reserved[6];
505 };
506
507 struct MR_SPAN_BLOCK_INFO {
508 u64 num_rows;
509 struct MR_LD_SPAN span;
510 struct MR_SPAN_INFO block_span_info;
511 };
512
513 struct MR_LD_RAID {
514 struct {
515 u32 fpCapable:1;
516 u32 reserved5:3;
517 u32 ldPiMode:4;
518 u32 pdPiMode:4;
519 u32 encryptionType:8;
520 u32 fpWriteCapable:1;
521 u32 fpReadCapable:1;
522 u32 fpWriteAcrossStripe:1;
523 u32 fpReadAcrossStripe:1;
524 u32 reserved4:8;
525 } capability;
526 u32 reserved6;
527 u64 size;
528 u8 spanDepth;
529 u8 level;
530 u8 stripeShift;
531 u8 rowSize;
532 u8 rowDataSize;
533 u8 writeMode;
534 u8 PRL;
535 u8 SRL;
536 u16 targetId;
537 u8 ldState;
538 u8 regTypeReqOnWrite;
539 u8 modFactor;
540 u8 regTypeReqOnRead;
541 u16 seqNum;
542
543 struct {
544 u32 ldSyncRequired:1;
545 u32 reserved:31;
546 } flags;
547
548 u8 reserved3[0x5C];
549 };
550
551 struct MR_LD_SPAN_MAP {
552 struct MR_LD_RAID ldRaid;
553 u8 dataArmMap[MAX_RAIDMAP_ROW_SIZE];
554 struct MR_SPAN_BLOCK_INFO spanBlock[MAX_RAIDMAP_SPAN_DEPTH];
555 };
556
557 struct MR_FW_RAID_MAP {
558 u32 totalSize;
559 union {
560 struct {
561 u32 maxLd;
562 u32 maxSpanDepth;
563 u32 maxRowSize;
564 u32 maxPdCount;
565 u32 maxArrays;
566 } validationInfo;
567 u32 version[5];
568 u32 reserved1[5];
569 };
570
571 u32 ldCount;
572 u32 Reserved1;
573 u8 ldTgtIdToLd[MAX_RAIDMAP_LOGICAL_DRIVES+
574 MAX_RAIDMAP_VIEWS];
575 u8 fpPdIoTimeoutSec;
576 u8 reserved2[7];
577 struct MR_ARRAY_INFO arMapInfo[MAX_RAIDMAP_ARRAYS];
578 struct MR_DEV_HANDLE_INFO devHndlInfo[MAX_RAIDMAP_PHYSICAL_DEVICES];
579 struct MR_LD_SPAN_MAP ldSpanMap[1];
580 };
581
582 struct IO_REQUEST_INFO {
583 u64 ldStartBlock;
584 u32 numBlocks;
585 u16 ldTgtId;
586 u8 isRead;
587 u16 devHandle;
588 u64 pdBlock;
589 u8 fpOkForIo;
590 };
591
592 struct MR_LD_TARGET_SYNC {
593 u8 targetId;
594 u8 reserved;
595 u16 seqNum;
596 };
597
598 #define IEEE_SGE_FLAGS_ADDR_MASK (0x03)
599 #define IEEE_SGE_FLAGS_SYSTEM_ADDR (0x00)
600 #define IEEE_SGE_FLAGS_IOCDDR_ADDR (0x01)
601 #define IEEE_SGE_FLAGS_IOCPLB_ADDR (0x02)
602 #define IEEE_SGE_FLAGS_IOCPLBNTA_ADDR (0x03)
603 #define IEEE_SGE_FLAGS_CHAIN_ELEMENT (0x80)
604 #define IEEE_SGE_FLAGS_END_OF_LIST (0x40)
605
606 struct megasas_register_set;
607 struct megasas_instance;
608
609 union desc_word {
610 u64 word;
611 struct {
612 u32 low;
613 u32 high;
614 } u;
615 };
616
617 struct megasas_cmd_fusion {
618 struct MPI2_RAID_SCSI_IO_REQUEST *io_request;
619 dma_addr_t io_request_phys_addr;
620
621 union MPI2_SGE_IO_UNION *sg_frame;
622 dma_addr_t sg_frame_phys_addr;
623
624 u8 *sense;
625 dma_addr_t sense_phys_addr;
626
627 struct list_head list;
628 struct scsi_cmnd *scmd;
629 struct megasas_instance *instance;
630
631 u8 retry_for_fw_reset;
632 union MEGASAS_REQUEST_DESCRIPTOR_UNION *request_desc;
633
634 /*
635 * Context for a MFI frame.
636 * Used to get the mfi cmd from list when a MFI cmd is completed
637 */
638 u32 sync_cmd_idx;
639 u32 index;
640 u8 flags;
641 };
642
643 struct LD_LOAD_BALANCE_INFO {
644 u8 loadBalanceFlag;
645 u8 reserved1;
646 u16 raid1DevHandle[2];
647 atomic_t scsi_pending_cmds[2];
648 u64 last_accessed_block[2];
649 };
650
651 struct MR_FW_RAID_MAP_ALL {
652 struct MR_FW_RAID_MAP raidMap;
653 struct MR_LD_SPAN_MAP ldSpanMap[MAX_LOGICAL_DRIVES - 1];
654 } __attribute__ ((packed));
655
656 struct fusion_context {
657 struct megasas_cmd_fusion **cmd_list;
658 struct list_head cmd_pool;
659
660 spinlock_t cmd_pool_lock;
661
662 dma_addr_t req_frames_desc_phys;
663 u8 *req_frames_desc;
664
665 struct dma_pool *io_request_frames_pool;
666 dma_addr_t io_request_frames_phys;
667 u8 *io_request_frames;
668
669 struct dma_pool *sg_dma_pool;
670 struct dma_pool *sense_dma_pool;
671
672 dma_addr_t reply_frames_desc_phys;
673 union MPI2_REPLY_DESCRIPTORS_UNION *reply_frames_desc;
674 struct dma_pool *reply_frames_desc_pool;
675
676 u16 last_reply_idx[MAX_MSIX_QUEUES_FUSION];
677
678 u32 reply_q_depth;
679 u32 request_alloc_sz;
680 u32 reply_alloc_sz;
681 u32 io_frames_alloc_sz;
682
683 u16 max_sge_in_main_msg;
684 u16 max_sge_in_chain;
685
686 u8 chain_offset_io_request;
687 u8 chain_offset_mfi_pthru;
688
689 struct MR_FW_RAID_MAP_ALL *ld_map[2];
690 dma_addr_t ld_map_phys[2];
691
692 u32 map_sz;
693 u8 fast_path_io;
694 struct LD_LOAD_BALANCE_INFO load_balance_info[MAX_LOGICAL_DRIVES];
695 };
696
697 union desc_value {
698 u64 word;
699 struct {
700 u32 low;
701 u32 high;
702 } u;
703 };
704
705 #endif /* _MEGARAID_SAS_FUSION_H_ */
Linux with added FPC-III support