1 /*
2  *  Linux MegaRAID driver for SAS based RAID controllers
3  *
4  *  Copyright (c) 2003-2013  LSI Corporation
5  *  Copyright (c) 2013-2014  Avago Technologies
6  *
7  *  This program is free software; you can redistribute it and/or
8  *  modify it under the terms of the GNU General Public License
9  *  as published by the Free Software Foundation; either version 2
10  *  of the License, or (at your option) any later version.
11  *
12  *  This program is distributed in the hope that it will be useful,
13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  *  GNU General Public License for more details.
16  *
17  *  You should have received a copy of the GNU General Public License
18  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
19  *
20  *  FILE: megaraid_sas.h
21  *
22  *  Authors: Avago Technologies
23  *           Kashyap Desai <kashyap.desai@avagotech.com>
24  *           Sumit Saxena <sumit.saxena@avagotech.com>
25  *
26  *  Send feedback to: megaraidlinux.pdl@avagotech.com
27  *
28  *  Mail to: Avago Technologies, 350 West Trimble Road, Building 90,
29  *  San Jose, California 95131
30  */
31 
32 #ifndef LSI_MEGARAID_SAS_H
33 #define LSI_MEGARAID_SAS_H
34 
35 /*
36  * MegaRAID SAS Driver meta data
37  */
38 #define MEGASAS_VERSION				"06.805.06.01-rc1"
39 
40 /*
41  * Device IDs
42  */
43 #define	PCI_DEVICE_ID_LSI_SAS1078R		0x0060
44 #define	PCI_DEVICE_ID_LSI_SAS1078DE		0x007C
45 #define	PCI_DEVICE_ID_LSI_VERDE_ZCR		0x0413
46 #define	PCI_DEVICE_ID_LSI_SAS1078GEN2		0x0078
47 #define	PCI_DEVICE_ID_LSI_SAS0079GEN2		0x0079
48 #define	PCI_DEVICE_ID_LSI_SAS0073SKINNY		0x0073
49 #define	PCI_DEVICE_ID_LSI_SAS0071SKINNY		0x0071
50 #define	PCI_DEVICE_ID_LSI_FUSION		0x005b
51 #define PCI_DEVICE_ID_LSI_PLASMA		0x002f
52 #define PCI_DEVICE_ID_LSI_INVADER		0x005d
53 #define PCI_DEVICE_ID_LSI_FURY			0x005f
54 
55 /*
56  * Intel HBA SSDIDs
57  */
58 #define MEGARAID_INTEL_RS3DC080_SSDID		0x9360
59 #define MEGARAID_INTEL_RS3DC040_SSDID		0x9362
60 #define MEGARAID_INTEL_RS3SC008_SSDID		0x9380
61 #define MEGARAID_INTEL_RS3MC044_SSDID		0x9381
62 #define MEGARAID_INTEL_RS3WC080_SSDID		0x9341
63 #define MEGARAID_INTEL_RS3WC040_SSDID		0x9343
64 
65 /*
66  * Intel HBA branding
67  */
68 #define MEGARAID_INTEL_RS3DC080_BRANDING	\
69 	"Intel(R) RAID Controller RS3DC080"
70 #define MEGARAID_INTEL_RS3DC040_BRANDING	\
71 	"Intel(R) RAID Controller RS3DC040"
72 #define MEGARAID_INTEL_RS3SC008_BRANDING	\
73 	"Intel(R) RAID Controller RS3SC008"
74 #define MEGARAID_INTEL_RS3MC044_BRANDING	\
75 	"Intel(R) RAID Controller RS3MC044"
76 #define MEGARAID_INTEL_RS3WC080_BRANDING	\
77 	"Intel(R) RAID Controller RS3WC080"
78 #define MEGARAID_INTEL_RS3WC040_BRANDING	\
79 	"Intel(R) RAID Controller RS3WC040"
80 
81 /*
82  * =====================================
83  * MegaRAID SAS MFI firmware definitions
84  * =====================================
85  */
86 
87 /*
88  * MFI stands for  MegaRAID SAS FW Interface. This is just a moniker for
89  * protocol between the software and firmware. Commands are issued using
90  * "message frames"
91  */
92 
93 /*
94  * FW posts its state in upper 4 bits of outbound_msg_0 register
95  */
96 #define MFI_STATE_MASK				0xF0000000
97 #define MFI_STATE_UNDEFINED			0x00000000
98 #define MFI_STATE_BB_INIT			0x10000000
99 #define MFI_STATE_FW_INIT			0x40000000
100 #define MFI_STATE_WAIT_HANDSHAKE		0x60000000
101 #define MFI_STATE_FW_INIT_2			0x70000000
102 #define MFI_STATE_DEVICE_SCAN			0x80000000
103 #define MFI_STATE_BOOT_MESSAGE_PENDING		0x90000000
104 #define MFI_STATE_FLUSH_CACHE			0xA0000000
105 #define MFI_STATE_READY				0xB0000000
106 #define MFI_STATE_OPERATIONAL			0xC0000000
107 #define MFI_STATE_FAULT				0xF0000000
108 #define MFI_STATE_FORCE_OCR			0x00000080
109 #define MFI_STATE_DMADONE			0x00000008
110 #define MFI_STATE_CRASH_DUMP_DONE		0x00000004
111 #define MFI_RESET_REQUIRED			0x00000001
112 #define MFI_RESET_ADAPTER			0x00000002
113 #define MEGAMFI_FRAME_SIZE			64
114 
115 /*
116  * During FW init, clear pending cmds & reset state using inbound_msg_0
117  *
118  * ABORT	: Abort all pending cmds
119  * READY	: Move from OPERATIONAL to READY state; discard queue info
120  * MFIMODE	: Discard (possible) low MFA posted in 64-bit mode (??)
121  * CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver
122  * HOTPLUG	: Resume from Hotplug
123  * MFI_STOP_ADP	: Send signal to FW to stop processing
124  */
125 #define WRITE_SEQUENCE_OFFSET		(0x0000000FC) /* I20 */
126 #define HOST_DIAGNOSTIC_OFFSET		(0x000000F8)  /* I20 */
127 #define DIAG_WRITE_ENABLE			(0x00000080)
128 #define DIAG_RESET_ADAPTER			(0x00000004)
129 
130 #define MFI_ADP_RESET				0x00000040
131 #define MFI_INIT_ABORT				0x00000001
132 #define MFI_INIT_READY				0x00000002
133 #define MFI_INIT_MFIMODE			0x00000004
134 #define MFI_INIT_CLEAR_HANDSHAKE		0x00000008
135 #define MFI_INIT_HOTPLUG			0x00000010
136 #define MFI_STOP_ADP				0x00000020
137 #define MFI_RESET_FLAGS				MFI_INIT_READY| \
138 						MFI_INIT_MFIMODE| \
139 						MFI_INIT_ABORT
140 
141 /*
142  * MFI frame flags
143  */
144 #define MFI_FRAME_POST_IN_REPLY_QUEUE		0x0000
145 #define MFI_FRAME_DONT_POST_IN_REPLY_QUEUE	0x0001
146 #define MFI_FRAME_SGL32				0x0000
147 #define MFI_FRAME_SGL64				0x0002
148 #define MFI_FRAME_SENSE32			0x0000
149 #define MFI_FRAME_SENSE64			0x0004
150 #define MFI_FRAME_DIR_NONE			0x0000
151 #define MFI_FRAME_DIR_WRITE			0x0008
152 #define MFI_FRAME_DIR_READ			0x0010
153 #define MFI_FRAME_DIR_BOTH			0x0018
154 #define MFI_FRAME_IEEE                          0x0020
155 
156 /*
157  * Definition for cmd_status
158  */
159 #define MFI_CMD_STATUS_POLL_MODE		0xFF
160 
161 /*
162  * MFI command opcodes
163  */
164 #define MFI_CMD_INIT				0x00
165 #define MFI_CMD_LD_READ				0x01
166 #define MFI_CMD_LD_WRITE			0x02
167 #define MFI_CMD_LD_SCSI_IO			0x03
168 #define MFI_CMD_PD_SCSI_IO			0x04
169 #define MFI_CMD_DCMD				0x05
170 #define MFI_CMD_ABORT				0x06
171 #define MFI_CMD_SMP				0x07
172 #define MFI_CMD_STP				0x08
173 #define MFI_CMD_INVALID				0xff
174 
175 #define MR_DCMD_CTRL_GET_INFO			0x01010000
176 #define MR_DCMD_LD_GET_LIST			0x03010000
177 #define MR_DCMD_LD_LIST_QUERY			0x03010100
178 
179 #define MR_DCMD_CTRL_CACHE_FLUSH		0x01101000
180 #define MR_FLUSH_CTRL_CACHE			0x01
181 #define MR_FLUSH_DISK_CACHE			0x02
182 
183 #define MR_DCMD_CTRL_SHUTDOWN			0x01050000
184 #define MR_DCMD_HIBERNATE_SHUTDOWN		0x01060000
185 #define MR_ENABLE_DRIVE_SPINDOWN		0x01
186 
187 #define MR_DCMD_CTRL_EVENT_GET_INFO		0x01040100
188 #define MR_DCMD_CTRL_EVENT_GET			0x01040300
189 #define MR_DCMD_CTRL_EVENT_WAIT			0x01040500
190 #define MR_DCMD_LD_GET_PROPERTIES		0x03030000
191 
192 #define MR_DCMD_CLUSTER				0x08000000
193 #define MR_DCMD_CLUSTER_RESET_ALL		0x08010100
194 #define MR_DCMD_CLUSTER_RESET_LD		0x08010200
195 #define MR_DCMD_PD_LIST_QUERY                   0x02010100
196 
197 #define MR_DCMD_CTRL_SET_CRASH_DUMP_PARAMS	0x01190100
198 #define MR_DRIVER_SET_APP_CRASHDUMP_MODE	(0xF0010000 | 0x0600)
199 
200 /*
201  * Global functions
202  */
203 extern u8 MR_ValidateMapInfo(struct megasas_instance *instance);
204 
205 
206 /*
207  * MFI command completion codes
208  */
209 enum MFI_STAT {
210 	MFI_STAT_OK = 0x00,
211 	MFI_STAT_INVALID_CMD = 0x01,
212 	MFI_STAT_INVALID_DCMD = 0x02,
213 	MFI_STAT_INVALID_PARAMETER = 0x03,
214 	MFI_STAT_INVALID_SEQUENCE_NUMBER = 0x04,
215 	MFI_STAT_ABORT_NOT_POSSIBLE = 0x05,
216 	MFI_STAT_APP_HOST_CODE_NOT_FOUND = 0x06,
217 	MFI_STAT_APP_IN_USE = 0x07,
218 	MFI_STAT_APP_NOT_INITIALIZED = 0x08,
219 	MFI_STAT_ARRAY_INDEX_INVALID = 0x09,
220 	MFI_STAT_ARRAY_ROW_NOT_EMPTY = 0x0a,
221 	MFI_STAT_CONFIG_RESOURCE_CONFLICT = 0x0b,
222 	MFI_STAT_DEVICE_NOT_FOUND = 0x0c,
223 	MFI_STAT_DRIVE_TOO_SMALL = 0x0d,
224 	MFI_STAT_FLASH_ALLOC_FAIL = 0x0e,
225 	MFI_STAT_FLASH_BUSY = 0x0f,
226 	MFI_STAT_FLASH_ERROR = 0x10,
227 	MFI_STAT_FLASH_IMAGE_BAD = 0x11,
228 	MFI_STAT_FLASH_IMAGE_INCOMPLETE = 0x12,
229 	MFI_STAT_FLASH_NOT_OPEN = 0x13,
230 	MFI_STAT_FLASH_NOT_STARTED = 0x14,
231 	MFI_STAT_FLUSH_FAILED = 0x15,
232 	MFI_STAT_HOST_CODE_NOT_FOUNT = 0x16,
233 	MFI_STAT_LD_CC_IN_PROGRESS = 0x17,
234 	MFI_STAT_LD_INIT_IN_PROGRESS = 0x18,
235 	MFI_STAT_LD_LBA_OUT_OF_RANGE = 0x19,
236 	MFI_STAT_LD_MAX_CONFIGURED = 0x1a,
237 	MFI_STAT_LD_NOT_OPTIMAL = 0x1b,
238 	MFI_STAT_LD_RBLD_IN_PROGRESS = 0x1c,
239 	MFI_STAT_LD_RECON_IN_PROGRESS = 0x1d,
240 	MFI_STAT_LD_WRONG_RAID_LEVEL = 0x1e,
241 	MFI_STAT_MAX_SPARES_EXCEEDED = 0x1f,
242 	MFI_STAT_MEMORY_NOT_AVAILABLE = 0x20,
243 	MFI_STAT_MFC_HW_ERROR = 0x21,
244 	MFI_STAT_NO_HW_PRESENT = 0x22,
245 	MFI_STAT_NOT_FOUND = 0x23,
246 	MFI_STAT_NOT_IN_ENCL = 0x24,
247 	MFI_STAT_PD_CLEAR_IN_PROGRESS = 0x25,
248 	MFI_STAT_PD_TYPE_WRONG = 0x26,
249 	MFI_STAT_PR_DISABLED = 0x27,
250 	MFI_STAT_ROW_INDEX_INVALID = 0x28,
251 	MFI_STAT_SAS_CONFIG_INVALID_ACTION = 0x29,
252 	MFI_STAT_SAS_CONFIG_INVALID_DATA = 0x2a,
253 	MFI_STAT_SAS_CONFIG_INVALID_PAGE = 0x2b,
254 	MFI_STAT_SAS_CONFIG_INVALID_TYPE = 0x2c,
255 	MFI_STAT_SCSI_DONE_WITH_ERROR = 0x2d,
256 	MFI_STAT_SCSI_IO_FAILED = 0x2e,
257 	MFI_STAT_SCSI_RESERVATION_CONFLICT = 0x2f,
258 	MFI_STAT_SHUTDOWN_FAILED = 0x30,
259 	MFI_STAT_TIME_NOT_SET = 0x31,
260 	MFI_STAT_WRONG_STATE = 0x32,
261 	MFI_STAT_LD_OFFLINE = 0x33,
262 	MFI_STAT_PEER_NOTIFICATION_REJECTED = 0x34,
263 	MFI_STAT_PEER_NOTIFICATION_FAILED = 0x35,
264 	MFI_STAT_RESERVATION_IN_PROGRESS = 0x36,
265 	MFI_STAT_I2C_ERRORS_DETECTED = 0x37,
266 	MFI_STAT_PCI_ERRORS_DETECTED = 0x38,
267 	MFI_STAT_CONFIG_SEQ_MISMATCH = 0x67,
268 
269 	MFI_STAT_INVALID_STATUS = 0xFF
270 };
271 
272 /*
273  * Crash dump related defines
274  */
275 #define MAX_CRASH_DUMP_SIZE 512
276 #define CRASH_DMA_BUF_SIZE  (1024 * 1024)
277 
278 enum MR_FW_CRASH_DUMP_STATE {
279 	UNAVAILABLE = 0,
280 	AVAILABLE = 1,
281 	COPYING = 2,
282 	COPIED = 3,
283 	COPY_ERROR = 4,
284 };
285 
286 enum _MR_CRASH_BUF_STATUS {
287 	MR_CRASH_BUF_TURN_OFF = 0,
288 	MR_CRASH_BUF_TURN_ON = 1,
289 };
290 
291 /*
292  * Number of mailbox bytes in DCMD message frame
293  */
294 #define MFI_MBOX_SIZE				12
295 
296 enum MR_EVT_CLASS {
297 
298 	MR_EVT_CLASS_DEBUG = -2,
299 	MR_EVT_CLASS_PROGRESS = -1,
300 	MR_EVT_CLASS_INFO = 0,
301 	MR_EVT_CLASS_WARNING = 1,
302 	MR_EVT_CLASS_CRITICAL = 2,
303 	MR_EVT_CLASS_FATAL = 3,
304 	MR_EVT_CLASS_DEAD = 4,
305 
306 };
307 
308 enum MR_EVT_LOCALE {
309 
310 	MR_EVT_LOCALE_LD = 0x0001,
311 	MR_EVT_LOCALE_PD = 0x0002,
312 	MR_EVT_LOCALE_ENCL = 0x0004,
313 	MR_EVT_LOCALE_BBU = 0x0008,
314 	MR_EVT_LOCALE_SAS = 0x0010,
315 	MR_EVT_LOCALE_CTRL = 0x0020,
316 	MR_EVT_LOCALE_CONFIG = 0x0040,
317 	MR_EVT_LOCALE_CLUSTER = 0x0080,
318 	MR_EVT_LOCALE_ALL = 0xffff,
319 
320 };
321 
322 enum MR_EVT_ARGS {
323 
324 	MR_EVT_ARGS_NONE,
325 	MR_EVT_ARGS_CDB_SENSE,
326 	MR_EVT_ARGS_LD,
327 	MR_EVT_ARGS_LD_COUNT,
328 	MR_EVT_ARGS_LD_LBA,
329 	MR_EVT_ARGS_LD_OWNER,
330 	MR_EVT_ARGS_LD_LBA_PD_LBA,
331 	MR_EVT_ARGS_LD_PROG,
332 	MR_EVT_ARGS_LD_STATE,
333 	MR_EVT_ARGS_LD_STRIP,
334 	MR_EVT_ARGS_PD,
335 	MR_EVT_ARGS_PD_ERR,
336 	MR_EVT_ARGS_PD_LBA,
337 	MR_EVT_ARGS_PD_LBA_LD,
338 	MR_EVT_ARGS_PD_PROG,
339 	MR_EVT_ARGS_PD_STATE,
340 	MR_EVT_ARGS_PCI,
341 	MR_EVT_ARGS_RATE,
342 	MR_EVT_ARGS_STR,
343 	MR_EVT_ARGS_TIME,
344 	MR_EVT_ARGS_ECC,
345 	MR_EVT_ARGS_LD_PROP,
346 	MR_EVT_ARGS_PD_SPARE,
347 	MR_EVT_ARGS_PD_INDEX,
348 	MR_EVT_ARGS_DIAG_PASS,
349 	MR_EVT_ARGS_DIAG_FAIL,
350 	MR_EVT_ARGS_PD_LBA_LBA,
351 	MR_EVT_ARGS_PORT_PHY,
352 	MR_EVT_ARGS_PD_MISSING,
353 	MR_EVT_ARGS_PD_ADDRESS,
354 	MR_EVT_ARGS_BITMAP,
355 	MR_EVT_ARGS_CONNECTOR,
356 	MR_EVT_ARGS_PD_PD,
357 	MR_EVT_ARGS_PD_FRU,
358 	MR_EVT_ARGS_PD_PATHINFO,
359 	MR_EVT_ARGS_PD_POWER_STATE,
360 	MR_EVT_ARGS_GENERIC,
361 };
362 
363 /*
364  * define constants for device list query options
365  */
366 enum MR_PD_QUERY_TYPE {
367 	MR_PD_QUERY_TYPE_ALL                = 0,
368 	MR_PD_QUERY_TYPE_STATE              = 1,
369 	MR_PD_QUERY_TYPE_POWER_STATE        = 2,
370 	MR_PD_QUERY_TYPE_MEDIA_TYPE         = 3,
371 	MR_PD_QUERY_TYPE_SPEED              = 4,
372 	MR_PD_QUERY_TYPE_EXPOSED_TO_HOST    = 5,
373 };
374 
375 enum MR_LD_QUERY_TYPE {
376 	MR_LD_QUERY_TYPE_ALL	         = 0,
377 	MR_LD_QUERY_TYPE_EXPOSED_TO_HOST = 1,
378 	MR_LD_QUERY_TYPE_USED_TGT_IDS    = 2,
379 	MR_LD_QUERY_TYPE_CLUSTER_ACCESS  = 3,
380 	MR_LD_QUERY_TYPE_CLUSTER_LOCALE  = 4,
381 };
382 
383 
384 #define MR_EVT_CFG_CLEARED                              0x0004
385 #define MR_EVT_LD_STATE_CHANGE                          0x0051
386 #define MR_EVT_PD_INSERTED                              0x005b
387 #define MR_EVT_PD_REMOVED                               0x0070
388 #define MR_EVT_LD_CREATED                               0x008a
389 #define MR_EVT_LD_DELETED                               0x008b
390 #define MR_EVT_FOREIGN_CFG_IMPORTED                     0x00db
391 #define MR_EVT_LD_OFFLINE                               0x00fc
392 #define MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED             0x0152
393 
394 enum MR_PD_STATE {
395 	MR_PD_STATE_UNCONFIGURED_GOOD   = 0x00,
396 	MR_PD_STATE_UNCONFIGURED_BAD    = 0x01,
397 	MR_PD_STATE_HOT_SPARE           = 0x02,
398 	MR_PD_STATE_OFFLINE             = 0x10,
399 	MR_PD_STATE_FAILED              = 0x11,
400 	MR_PD_STATE_REBUILD             = 0x14,
401 	MR_PD_STATE_ONLINE              = 0x18,
402 	MR_PD_STATE_COPYBACK            = 0x20,
403 	MR_PD_STATE_SYSTEM              = 0x40,
404  };
405 
406 
407  /*
408  * defines the physical drive address structure
409  */
410 struct MR_PD_ADDRESS {
411 	u16     deviceId;
412 	u16     enclDeviceId;
413 
414 	union {
415 		struct {
416 			u8  enclIndex;
417 			u8  slotNumber;
418 		} mrPdAddress;
419 		struct {
420 			u8  enclPosition;
421 			u8  enclConnectorIndex;
422 		} mrEnclAddress;
423 	};
424 	u8      scsiDevType;
425 	union {
426 		u8      connectedPortBitmap;
427 		u8      connectedPortNumbers;
428 	};
429 	u64     sasAddr[2];
430 } __packed;
431 
432 /*
433  * defines the physical drive list structure
434  */
435 struct MR_PD_LIST {
436 	u32             size;
437 	u32             count;
438 	struct MR_PD_ADDRESS   addr[1];
439 } __packed;
440 
441 struct megasas_pd_list {
442 	u16             tid;
443 	u8             driveType;
444 	u8             driveState;
445 } __packed;
446 
447  /*
448  * defines the logical drive reference structure
449  */
450 union  MR_LD_REF {
451 	struct {
452 		u8      targetId;
453 		u8      reserved;
454 		u16     seqNum;
455 	};
456 	u32     ref;
457 } __packed;
458 
459 /*
460  * defines the logical drive list structure
461  */
462 struct MR_LD_LIST {
463 	u32     ldCount;
464 	u32     reserved;
465 	struct {
466 		union MR_LD_REF   ref;
467 		u8          state;
468 		u8          reserved[3];
469 		u64         size;
470 	} ldList[MAX_LOGICAL_DRIVES_EXT];
471 } __packed;
472 
473 struct MR_LD_TARGETID_LIST {
474 	u32	size;
475 	u32	count;
476 	u8	pad[3];
477 	u8	targetId[MAX_LOGICAL_DRIVES_EXT];
478 };
479 
480 
481 /*
482  * SAS controller properties
483  */
484 struct megasas_ctrl_prop {
485 
486 	u16 seq_num;
487 	u16 pred_fail_poll_interval;
488 	u16 intr_throttle_count;
489 	u16 intr_throttle_timeouts;
490 	u8 rebuild_rate;
491 	u8 patrol_read_rate;
492 	u8 bgi_rate;
493 	u8 cc_rate;
494 	u8 recon_rate;
495 	u8 cache_flush_interval;
496 	u8 spinup_drv_count;
497 	u8 spinup_delay;
498 	u8 cluster_enable;
499 	u8 coercion_mode;
500 	u8 alarm_enable;
501 	u8 disable_auto_rebuild;
502 	u8 disable_battery_warn;
503 	u8 ecc_bucket_size;
504 	u16 ecc_bucket_leak_rate;
505 	u8 restore_hotspare_on_insertion;
506 	u8 expose_encl_devices;
507 	u8 maintainPdFailHistory;
508 	u8 disallowHostRequestReordering;
509 	u8 abortCCOnError;
510 	u8 loadBalanceMode;
511 	u8 disableAutoDetectBackplane;
512 
513 	u8 snapVDSpace;
514 
515 	/*
516 	* Add properties that can be controlled by
517 	* a bit in the following structure.
518 	*/
519 	struct {
520 #if   defined(__BIG_ENDIAN_BITFIELD)
521 		u32     reserved:18;
522 		u32     enableJBOD:1;
523 		u32     disableSpinDownHS:1;
524 		u32     allowBootWithPinnedCache:1;
525 		u32     disableOnlineCtrlReset:1;
526 		u32     enableSecretKeyControl:1;
527 		u32     autoEnhancedImport:1;
528 		u32     enableSpinDownUnconfigured:1;
529 		u32     SSDPatrolReadEnabled:1;
530 		u32     SSDSMARTerEnabled:1;
531 		u32     disableNCQ:1;
532 		u32     useFdeOnly:1;
533 		u32     prCorrectUnconfiguredAreas:1;
534 		u32     SMARTerEnabled:1;
535 		u32     copyBackDisabled:1;
536 #else
537 		u32     copyBackDisabled:1;
538 		u32     SMARTerEnabled:1;
539 		u32     prCorrectUnconfiguredAreas:1;
540 		u32     useFdeOnly:1;
541 		u32     disableNCQ:1;
542 		u32     SSDSMARTerEnabled:1;
543 		u32     SSDPatrolReadEnabled:1;
544 		u32     enableSpinDownUnconfigured:1;
545 		u32     autoEnhancedImport:1;
546 		u32     enableSecretKeyControl:1;
547 		u32     disableOnlineCtrlReset:1;
548 		u32     allowBootWithPinnedCache:1;
549 		u32     disableSpinDownHS:1;
550 		u32     enableJBOD:1;
551 		u32     reserved:18;
552 #endif
553 	} OnOffProperties;
554 	u8 autoSnapVDSpace;
555 	u8 viewSpace;
556 	u16 spinDownTime;
557 	u8  reserved[24];
558 } __packed;
559 
560 /*
561  * SAS controller information
562  */
563 struct megasas_ctrl_info {
564 
565 	/*
566 	 * PCI device information
567 	 */
568 	struct {
569 
570 		u16 vendor_id;
571 		u16 device_id;
572 		u16 sub_vendor_id;
573 		u16 sub_device_id;
574 		u8 reserved[24];
575 
576 	} __attribute__ ((packed)) pci;
577 
578 	/*
579 	 * Host interface information
580 	 */
581 	struct {
582 
583 		u8 PCIX:1;
584 		u8 PCIE:1;
585 		u8 iSCSI:1;
586 		u8 SAS_3G:1;
587 		u8 SRIOV:1;
588 		u8 reserved_0:3;
589 		u8 reserved_1[6];
590 		u8 port_count;
591 		u64 port_addr[8];
592 
593 	} __attribute__ ((packed)) host_interface;
594 
595 	/*
596 	 * Device (backend) interface information
597 	 */
598 	struct {
599 
600 		u8 SPI:1;
601 		u8 SAS_3G:1;
602 		u8 SATA_1_5G:1;
603 		u8 SATA_3G:1;
604 		u8 reserved_0:4;
605 		u8 reserved_1[6];
606 		u8 port_count;
607 		u64 port_addr[8];
608 
609 	} __attribute__ ((packed)) device_interface;
610 
611 	/*
612 	 * List of components residing in flash. All str are null terminated
613 	 */
614 	u32 image_check_word;
615 	u32 image_component_count;
616 
617 	struct {
618 
619 		char name[8];
620 		char version[32];
621 		char build_date[16];
622 		char built_time[16];
623 
624 	} __attribute__ ((packed)) image_component[8];
625 
626 	/*
627 	 * List of flash components that have been flashed on the card, but
628 	 * are not in use, pending reset of the adapter. This list will be
629 	 * empty if a flash operation has not occurred. All stings are null
630 	 * terminated
631 	 */
632 	u32 pending_image_component_count;
633 
634 	struct {
635 
636 		char name[8];
637 		char version[32];
638 		char build_date[16];
639 		char build_time[16];
640 
641 	} __attribute__ ((packed)) pending_image_component[8];
642 
643 	u8 max_arms;
644 	u8 max_spans;
645 	u8 max_arrays;
646 	u8 max_lds;
647 
648 	char product_name[80];
649 	char serial_no[32];
650 
651 	/*
652 	 * Other physical/controller/operation information. Indicates the
653 	 * presence of the hardware
654 	 */
655 	struct {
656 
657 		u32 bbu:1;
658 		u32 alarm:1;
659 		u32 nvram:1;
660 		u32 uart:1;
661 		u32 reserved:28;
662 
663 	} __attribute__ ((packed)) hw_present;
664 
665 	u32 current_fw_time;
666 
667 	/*
668 	 * Maximum data transfer sizes
669 	 */
670 	u16 max_concurrent_cmds;
671 	u16 max_sge_count;
672 	u32 max_request_size;
673 
674 	/*
675 	 * Logical and physical device counts
676 	 */
677 	u16 ld_present_count;
678 	u16 ld_degraded_count;
679 	u16 ld_offline_count;
680 
681 	u16 pd_present_count;
682 	u16 pd_disk_present_count;
683 	u16 pd_disk_pred_failure_count;
684 	u16 pd_disk_failed_count;
685 
686 	/*
687 	 * Memory size information
688 	 */
689 	u16 nvram_size;
690 	u16 memory_size;
691 	u16 flash_size;
692 
693 	/*
694 	 * Error counters
695 	 */
696 	u16 mem_correctable_error_count;
697 	u16 mem_uncorrectable_error_count;
698 
699 	/*
700 	 * Cluster information
701 	 */
702 	u8 cluster_permitted;
703 	u8 cluster_active;
704 
705 	/*
706 	 * Additional max data transfer sizes
707 	 */
708 	u16 max_strips_per_io;
709 
710 	/*
711 	 * Controller capabilities structures
712 	 */
713 	struct {
714 
715 		u32 raid_level_0:1;
716 		u32 raid_level_1:1;
717 		u32 raid_level_5:1;
718 		u32 raid_level_1E:1;
719 		u32 raid_level_6:1;
720 		u32 reserved:27;
721 
722 	} __attribute__ ((packed)) raid_levels;
723 
724 	struct {
725 
726 		u32 rbld_rate:1;
727 		u32 cc_rate:1;
728 		u32 bgi_rate:1;
729 		u32 recon_rate:1;
730 		u32 patrol_rate:1;
731 		u32 alarm_control:1;
732 		u32 cluster_supported:1;
733 		u32 bbu:1;
734 		u32 spanning_allowed:1;
735 		u32 dedicated_hotspares:1;
736 		u32 revertible_hotspares:1;
737 		u32 foreign_config_import:1;
738 		u32 self_diagnostic:1;
739 		u32 mixed_redundancy_arr:1;
740 		u32 global_hot_spares:1;
741 		u32 reserved:17;
742 
743 	} __attribute__ ((packed)) adapter_operations;
744 
745 	struct {
746 
747 		u32 read_policy:1;
748 		u32 write_policy:1;
749 		u32 io_policy:1;
750 		u32 access_policy:1;
751 		u32 disk_cache_policy:1;
752 		u32 reserved:27;
753 
754 	} __attribute__ ((packed)) ld_operations;
755 
756 	struct {
757 
758 		u8 min;
759 		u8 max;
760 		u8 reserved[2];
761 
762 	} __attribute__ ((packed)) stripe_sz_ops;
763 
764 	struct {
765 
766 		u32 force_online:1;
767 		u32 force_offline:1;
768 		u32 force_rebuild:1;
769 		u32 reserved:29;
770 
771 	} __attribute__ ((packed)) pd_operations;
772 
773 	struct {
774 
775 		u32 ctrl_supports_sas:1;
776 		u32 ctrl_supports_sata:1;
777 		u32 allow_mix_in_encl:1;
778 		u32 allow_mix_in_ld:1;
779 		u32 allow_sata_in_cluster:1;
780 		u32 reserved:27;
781 
782 	} __attribute__ ((packed)) pd_mix_support;
783 
784 	/*
785 	 * Define ECC single-bit-error bucket information
786 	 */
787 	u8 ecc_bucket_count;
788 	u8 reserved_2[11];
789 
790 	/*
791 	 * Include the controller properties (changeable items)
792 	 */
793 	struct megasas_ctrl_prop properties;
794 
795 	/*
796 	 * Define FW pkg version (set in envt v'bles on OEM basis)
797 	 */
798 	char package_version[0x60];
799 
800 
801 	/*
802 	* If adapterOperations.supportMoreThan8Phys is set,
803 	* and deviceInterface.portCount is greater than 8,
804 	* SAS Addrs for first 8 ports shall be populated in
805 	* deviceInterface.portAddr, and the rest shall be
806 	* populated in deviceInterfacePortAddr2.
807 	*/
808 	u64         deviceInterfacePortAddr2[8]; /*6a0h */
809 	u8          reserved3[128];              /*6e0h */
810 
811 	struct {                                /*760h */
812 		u16 minPdRaidLevel_0:4;
813 		u16 maxPdRaidLevel_0:12;
814 
815 		u16 minPdRaidLevel_1:4;
816 		u16 maxPdRaidLevel_1:12;
817 
818 		u16 minPdRaidLevel_5:4;
819 		u16 maxPdRaidLevel_5:12;
820 
821 		u16 minPdRaidLevel_1E:4;
822 		u16 maxPdRaidLevel_1E:12;
823 
824 		u16 minPdRaidLevel_6:4;
825 		u16 maxPdRaidLevel_6:12;
826 
827 		u16 minPdRaidLevel_10:4;
828 		u16 maxPdRaidLevel_10:12;
829 
830 		u16 minPdRaidLevel_50:4;
831 		u16 maxPdRaidLevel_50:12;
832 
833 		u16 minPdRaidLevel_60:4;
834 		u16 maxPdRaidLevel_60:12;
835 
836 		u16 minPdRaidLevel_1E_RLQ0:4;
837 		u16 maxPdRaidLevel_1E_RLQ0:12;
838 
839 		u16 minPdRaidLevel_1E0_RLQ0:4;
840 		u16 maxPdRaidLevel_1E0_RLQ0:12;
841 
842 		u16 reserved[6];
843 	} pdsForRaidLevels;
844 
845 	u16 maxPds;                             /*780h */
846 	u16 maxDedHSPs;                         /*782h */
847 	u16 maxGlobalHSPs;                      /*784h */
848 	u16 ddfSize;                            /*786h */
849 	u8  maxLdsPerArray;                     /*788h */
850 	u8  partitionsInDDF;                    /*789h */
851 	u8  lockKeyBinding;                     /*78ah */
852 	u8  maxPITsPerLd;                       /*78bh */
853 	u8  maxViewsPerLd;                      /*78ch */
854 	u8  maxTargetId;                        /*78dh */
855 	u16 maxBvlVdSize;                       /*78eh */
856 
857 	u16 maxConfigurableSSCSize;             /*790h */
858 	u16 currentSSCsize;                     /*792h */
859 
860 	char    expanderFwVersion[12];          /*794h */
861 
862 	u16 PFKTrialTimeRemaining;              /*7A0h */
863 
864 	u16 cacheMemorySize;                    /*7A2h */
865 
866 	struct {                                /*7A4h */
867 #if   defined(__BIG_ENDIAN_BITFIELD)
868 		u32     reserved:5;
869 		u32	activePassive:2;
870 		u32	supportConfigAutoBalance:1;
871 		u32	mpio:1;
872 		u32	supportDataLDonSSCArray:1;
873 		u32	supportPointInTimeProgress:1;
874 		u32     supportUnevenSpans:1;
875 		u32     dedicatedHotSparesLimited:1;
876 		u32     headlessMode:1;
877 		u32     supportEmulatedDrives:1;
878 		u32     supportResetNow:1;
879 		u32     realTimeScheduler:1;
880 		u32     supportSSDPatrolRead:1;
881 		u32     supportPerfTuning:1;
882 		u32     disableOnlinePFKChange:1;
883 		u32     supportJBOD:1;
884 		u32     supportBootTimePFKChange:1;
885 		u32     supportSetLinkSpeed:1;
886 		u32     supportEmergencySpares:1;
887 		u32     supportSuspendResumeBGops:1;
888 		u32     blockSSDWriteCacheChange:1;
889 		u32     supportShieldState:1;
890 		u32     supportLdBBMInfo:1;
891 		u32     supportLdPIType3:1;
892 		u32     supportLdPIType2:1;
893 		u32     supportLdPIType1:1;
894 		u32     supportPIcontroller:1;
895 #else
896 		u32     supportPIcontroller:1;
897 		u32     supportLdPIType1:1;
898 		u32     supportLdPIType2:1;
899 		u32     supportLdPIType3:1;
900 		u32     supportLdBBMInfo:1;
901 		u32     supportShieldState:1;
902 		u32     blockSSDWriteCacheChange:1;
903 		u32     supportSuspendResumeBGops:1;
904 		u32     supportEmergencySpares:1;
905 		u32     supportSetLinkSpeed:1;
906 		u32     supportBootTimePFKChange:1;
907 		u32     supportJBOD:1;
908 		u32     disableOnlinePFKChange:1;
909 		u32     supportPerfTuning:1;
910 		u32     supportSSDPatrolRead:1;
911 		u32     realTimeScheduler:1;
912 
913 		u32     supportResetNow:1;
914 		u32     supportEmulatedDrives:1;
915 		u32     headlessMode:1;
916 		u32     dedicatedHotSparesLimited:1;
917 
918 
919 		u32     supportUnevenSpans:1;
920 		u32	supportPointInTimeProgress:1;
921 		u32	supportDataLDonSSCArray:1;
922 		u32	mpio:1;
923 		u32	supportConfigAutoBalance:1;
924 		u32	activePassive:2;
925 		u32     reserved:5;
926 #endif
927 	} adapterOperations2;
928 
929 	u8  driverVersion[32];                  /*7A8h */
930 	u8  maxDAPdCountSpinup60;               /*7C8h */
931 	u8  temperatureROC;                     /*7C9h */
932 	u8  temperatureCtrl;                    /*7CAh */
933 	u8  reserved4;                          /*7CBh */
934 	u16 maxConfigurablePds;                 /*7CCh */
935 
936 
937 	u8  reserved5[2];                       /*0x7CDh */
938 
939 	/*
940 	* HA cluster information
941 	*/
942 	struct {
943 #if defined(__BIG_ENDIAN_BITFIELD)
944 		u32     reserved:26;
945 		u32     premiumFeatureMismatch:1;
946 		u32     ctrlPropIncompatible:1;
947 		u32     fwVersionMismatch:1;
948 		u32     hwIncompatible:1;
949 		u32     peerIsIncompatible:1;
950 		u32     peerIsPresent:1;
951 #else
952 		u32     peerIsPresent:1;
953 		u32     peerIsIncompatible:1;
954 		u32     hwIncompatible:1;
955 		u32     fwVersionMismatch:1;
956 		u32     ctrlPropIncompatible:1;
957 		u32     premiumFeatureMismatch:1;
958 		u32     reserved:26;
959 #endif
960 	} cluster;
961 
962 	char clusterId[16];                     /*7D4h */
963 	struct {
964 		u8  maxVFsSupported;            /*0x7E4*/
965 		u8  numVFsEnabled;              /*0x7E5*/
966 		u8  requestorId;                /*0x7E6 0:PF, 1:VF1, 2:VF2*/
967 		u8  reserved;                   /*0x7E7*/
968 	} iov;
969 
970 	struct {
971 #if defined(__BIG_ENDIAN_BITFIELD)
972 		u32     reserved:25;
973 		u32     supportCrashDump:1;
974 		u32     supportMaxExtLDs:1;
975 		u32     supportT10RebuildAssist:1;
976 		u32     supportDisableImmediateIO:1;
977 		u32     supportThermalPollInterval:1;
978 		u32     supportPersonalityChange:2;
979 #else
980 		u32     supportPersonalityChange:2;
981 		u32     supportThermalPollInterval:1;
982 		u32     supportDisableImmediateIO:1;
983 		u32     supportT10RebuildAssist:1;
984 		u32     supportMaxExtLDs:1;
985 		u32     supportCrashDump:1;
986 		u32     reserved:25;
987 #endif
988 	} adapterOperations3;
989 
990 	u8          pad[0x800-0x7EC];
991 } __packed;
992 
993 /*
994  * ===============================
995  * MegaRAID SAS driver definitions
996  * ===============================
997  */
998 #define MEGASAS_MAX_PD_CHANNELS			2
999 #define MEGASAS_MAX_LD_CHANNELS			2
1000 #define MEGASAS_MAX_CHANNELS			(MEGASAS_MAX_PD_CHANNELS + \
1001 						MEGASAS_MAX_LD_CHANNELS)
1002 #define MEGASAS_MAX_DEV_PER_CHANNEL		128
1003 #define MEGASAS_DEFAULT_INIT_ID			-1
1004 #define MEGASAS_MAX_LUN				8
1005 #define MEGASAS_DEFAULT_CMD_PER_LUN		256
1006 #define MEGASAS_MAX_PD                          (MEGASAS_MAX_PD_CHANNELS * \
1007 						MEGASAS_MAX_DEV_PER_CHANNEL)
1008 #define MEGASAS_MAX_LD_IDS			(MEGASAS_MAX_LD_CHANNELS * \
1009 						MEGASAS_MAX_DEV_PER_CHANNEL)
1010 
1011 #define MEGASAS_MAX_SECTORS                    (2*1024)
1012 #define MEGASAS_MAX_SECTORS_IEEE		(2*128)
1013 #define MEGASAS_DBG_LVL				1
1014 
1015 #define MEGASAS_FW_BUSY				1
1016 
1017 #define VD_EXT_DEBUG 0
1018 
1019 enum MR_MFI_MPT_PTHR_FLAGS {
1020 	MFI_MPT_DETACHED = 0,
1021 	MFI_LIST_ADDED = 1,
1022 	MFI_MPT_ATTACHED = 2,
1023 };
1024 
1025 /* Frame Type */
1026 #define IO_FRAME				0
1027 #define PTHRU_FRAME				1
1028 
1029 /*
1030  * When SCSI mid-layer calls driver's reset routine, driver waits for
1031  * MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note
1032  * that the driver cannot _actually_ abort or reset pending commands. While
1033  * it is waiting for the commands to complete, it prints a diagnostic message
1034  * every MEGASAS_RESET_NOTICE_INTERVAL seconds
1035  */
1036 #define MEGASAS_RESET_WAIT_TIME			180
1037 #define MEGASAS_INTERNAL_CMD_WAIT_TIME		180
1038 #define	MEGASAS_RESET_NOTICE_INTERVAL		5
1039 #define MEGASAS_IOCTL_CMD			0
1040 #define MEGASAS_DEFAULT_CMD_TIMEOUT		90
1041 #define MEGASAS_THROTTLE_QUEUE_DEPTH		16
1042 #define MEGASAS_BLOCKED_CMD_TIMEOUT		60
1043 /*
1044  * FW reports the maximum of number of commands that it can accept (maximum
1045  * commands that can be outstanding) at any time. The driver must report a
1046  * lower number to the mid layer because it can issue a few internal commands
1047  * itself (E.g, AEN, abort cmd, IOCTLs etc). The number of commands it needs
1048  * is shown below
1049  */
1050 #define MEGASAS_INT_CMDS			32
1051 #define MEGASAS_SKINNY_INT_CMDS			5
1052 
1053 #define MEGASAS_MAX_MSIX_QUEUES			128
1054 /*
1055  * FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
1056  * SGLs based on the size of dma_addr_t
1057  */
1058 #define IS_DMA64				(sizeof(dma_addr_t) == 8)
1059 
1060 #define MFI_XSCALE_OMR0_CHANGE_INTERRUPT		0x00000001
1061 
1062 #define MFI_INTR_FLAG_REPLY_MESSAGE			0x00000001
1063 #define MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE		0x00000002
1064 #define MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT	0x00000004
1065 
1066 #define MFI_OB_INTR_STATUS_MASK			0x00000002
1067 #define MFI_POLL_TIMEOUT_SECS			60
1068 #define MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF	(5 * HZ)
1069 #define MEGASAS_OCR_SETTLE_TIME_VF		(1000 * 30)
1070 #define MEGASAS_ROUTINE_WAIT_TIME_VF		300
1071 #define MFI_REPLY_1078_MESSAGE_INTERRUPT	0x80000000
1072 #define MFI_REPLY_GEN2_MESSAGE_INTERRUPT	0x00000001
1073 #define MFI_GEN2_ENABLE_INTERRUPT_MASK		(0x00000001 | 0x00000004)
1074 #define MFI_REPLY_SKINNY_MESSAGE_INTERRUPT	0x40000000
1075 #define MFI_SKINNY_ENABLE_INTERRUPT_MASK	(0x00000001)
1076 
1077 #define MFI_1068_PCSR_OFFSET			0x84
1078 #define MFI_1068_FW_HANDSHAKE_OFFSET		0x64
1079 #define MFI_1068_FW_READY			0xDDDD0000
1080 
1081 #define MR_MAX_REPLY_QUEUES_OFFSET              0X0000001F
1082 #define MR_MAX_REPLY_QUEUES_EXT_OFFSET          0X003FC000
1083 #define MR_MAX_REPLY_QUEUES_EXT_OFFSET_SHIFT    14
1084 #define MR_MAX_MSIX_REG_ARRAY                   16
1085 /*
1086 * register set for both 1068 and 1078 controllers
1087 * structure extended for 1078 registers
1088 */
1089 
1090 struct megasas_register_set {
1091 	u32	doorbell;                       /*0000h*/
1092 	u32	fusion_seq_offset;		/*0004h*/
1093 	u32	fusion_host_diag;		/*0008h*/
1094 	u32	reserved_01;			/*000Ch*/
1095 
1096 	u32 	inbound_msg_0;			/*0010h*/
1097 	u32 	inbound_msg_1;			/*0014h*/
1098 	u32 	outbound_msg_0;			/*0018h*/
1099 	u32 	outbound_msg_1;			/*001Ch*/
1100 
1101 	u32 	inbound_doorbell;		/*0020h*/
1102 	u32 	inbound_intr_status;		/*0024h*/
1103 	u32 	inbound_intr_mask;		/*0028h*/
1104 
1105 	u32 	outbound_doorbell;		/*002Ch*/
1106 	u32 	outbound_intr_status;		/*0030h*/
1107 	u32 	outbound_intr_mask;		/*0034h*/
1108 
1109 	u32 	reserved_1[2];			/*0038h*/
1110 
1111 	u32 	inbound_queue_port;		/*0040h*/
1112 	u32 	outbound_queue_port;		/*0044h*/
1113 
1114 	u32	reserved_2[9];			/*0048h*/
1115 	u32	reply_post_host_index;		/*006Ch*/
1116 	u32	reserved_2_2[12];		/*0070h*/
1117 
1118 	u32 	outbound_doorbell_clear;	/*00A0h*/
1119 
1120 	u32 	reserved_3[3];			/*00A4h*/
1121 
1122 	u32 	outbound_scratch_pad ;		/*00B0h*/
1123 	u32	outbound_scratch_pad_2;         /*00B4h*/
1124 
1125 	u32	reserved_4[2];			/*00B8h*/
1126 
1127 	u32 	inbound_low_queue_port ;	/*00C0h*/
1128 
1129 	u32 	inbound_high_queue_port ;	/*00C4h*/
1130 
1131 	u32 	reserved_5;			/*00C8h*/
1132 	u32	res_6[11];			/*CCh*/
1133 	u32	host_diag;
1134 	u32	seq_offset;
1135 	u32 	index_registers[807];		/*00CCh*/
1136 } __attribute__ ((packed));
1137 
1138 struct megasas_sge32 {
1139 
1140 	u32 phys_addr;
1141 	u32 length;
1142 
1143 } __attribute__ ((packed));
1144 
1145 struct megasas_sge64 {
1146 
1147 	u64 phys_addr;
1148 	u32 length;
1149 
1150 } __attribute__ ((packed));
1151 
1152 struct megasas_sge_skinny {
1153 	u64 phys_addr;
1154 	u32 length;
1155 	u32 flag;
1156 } __packed;
1157 
1158 union megasas_sgl {
1159 
1160 	struct megasas_sge32 sge32[1];
1161 	struct megasas_sge64 sge64[1];
1162 	struct megasas_sge_skinny sge_skinny[1];
1163 
1164 } __attribute__ ((packed));
1165 
1166 struct megasas_header {
1167 
1168 	u8 cmd;			/*00h */
1169 	u8 sense_len;		/*01h */
1170 	u8 cmd_status;		/*02h */
1171 	u8 scsi_status;		/*03h */
1172 
1173 	u8 target_id;		/*04h */
1174 	u8 lun;			/*05h */
1175 	u8 cdb_len;		/*06h */
1176 	u8 sge_count;		/*07h */
1177 
1178 	u32 context;		/*08h */
1179 	u32 pad_0;		/*0Ch */
1180 
1181 	u16 flags;		/*10h */
1182 	u16 timeout;		/*12h */
1183 	u32 data_xferlen;	/*14h */
1184 
1185 } __attribute__ ((packed));
1186 
1187 union megasas_sgl_frame {
1188 
1189 	struct megasas_sge32 sge32[8];
1190 	struct megasas_sge64 sge64[5];
1191 
1192 } __attribute__ ((packed));
1193 
1194 typedef union _MFI_CAPABILITIES {
1195 	struct {
1196 #if   defined(__BIG_ENDIAN_BITFIELD)
1197 		u32     reserved:27;
1198 		u32     support_ndrive_r1_lb:1;
1199 		u32	support_max_255lds:1;
1200 		u32	reserved1:1;
1201 		u32     support_additional_msix:1;
1202 		u32     support_fp_remote_lun:1;
1203 #else
1204 		u32     support_fp_remote_lun:1;
1205 		u32     support_additional_msix:1;
1206 		u32	reserved1:1;
1207 		u32	support_max_255lds:1;
1208 		u32     support_ndrive_r1_lb:1;
1209 		u32     reserved:27;
1210 #endif
1211 	} mfi_capabilities;
1212 	u32     reg;
1213 } MFI_CAPABILITIES;
1214 
1215 struct megasas_init_frame {
1216 
1217 	u8 cmd;			/*00h */
1218 	u8 reserved_0;		/*01h */
1219 	u8 cmd_status;		/*02h */
1220 
1221 	u8 reserved_1;		/*03h */
1222 	MFI_CAPABILITIES driver_operations; /*04h*/
1223 
1224 	u32 context;		/*08h */
1225 	u32 pad_0;		/*0Ch */
1226 
1227 	u16 flags;		/*10h */
1228 	u16 reserved_3;		/*12h */
1229 	u32 data_xfer_len;	/*14h */
1230 
1231 	u32 queue_info_new_phys_addr_lo;	/*18h */
1232 	u32 queue_info_new_phys_addr_hi;	/*1Ch */
1233 	u32 queue_info_old_phys_addr_lo;	/*20h */
1234 	u32 queue_info_old_phys_addr_hi;	/*24h */
1235 
1236 	u32 reserved_4[6];	/*28h */
1237 
1238 } __attribute__ ((packed));
1239 
1240 struct megasas_init_queue_info {
1241 
1242 	u32 init_flags;		/*00h */
1243 	u32 reply_queue_entries;	/*04h */
1244 
1245 	u32 reply_queue_start_phys_addr_lo;	/*08h */
1246 	u32 reply_queue_start_phys_addr_hi;	/*0Ch */
1247 	u32 producer_index_phys_addr_lo;	/*10h */
1248 	u32 producer_index_phys_addr_hi;	/*14h */
1249 	u32 consumer_index_phys_addr_lo;	/*18h */
1250 	u32 consumer_index_phys_addr_hi;	/*1Ch */
1251 
1252 } __attribute__ ((packed));
1253 
1254 struct megasas_io_frame {
1255 
1256 	u8 cmd;			/*00h */
1257 	u8 sense_len;		/*01h */
1258 	u8 cmd_status;		/*02h */
1259 	u8 scsi_status;		/*03h */
1260 
1261 	u8 target_id;		/*04h */
1262 	u8 access_byte;		/*05h */
1263 	u8 reserved_0;		/*06h */
1264 	u8 sge_count;		/*07h */
1265 
1266 	u32 context;		/*08h */
1267 	u32 pad_0;		/*0Ch */
1268 
1269 	u16 flags;		/*10h */
1270 	u16 timeout;		/*12h */
1271 	u32 lba_count;		/*14h */
1272 
1273 	u32 sense_buf_phys_addr_lo;	/*18h */
1274 	u32 sense_buf_phys_addr_hi;	/*1Ch */
1275 
1276 	u32 start_lba_lo;	/*20h */
1277 	u32 start_lba_hi;	/*24h */
1278 
1279 	union megasas_sgl sgl;	/*28h */
1280 
1281 } __attribute__ ((packed));
1282 
1283 struct megasas_pthru_frame {
1284 
1285 	u8 cmd;			/*00h */
1286 	u8 sense_len;		/*01h */
1287 	u8 cmd_status;		/*02h */
1288 	u8 scsi_status;		/*03h */
1289 
1290 	u8 target_id;		/*04h */
1291 	u8 lun;			/*05h */
1292 	u8 cdb_len;		/*06h */
1293 	u8 sge_count;		/*07h */
1294 
1295 	u32 context;		/*08h */
1296 	u32 pad_0;		/*0Ch */
1297 
1298 	u16 flags;		/*10h */
1299 	u16 timeout;		/*12h */
1300 	u32 data_xfer_len;	/*14h */
1301 
1302 	u32 sense_buf_phys_addr_lo;	/*18h */
1303 	u32 sense_buf_phys_addr_hi;	/*1Ch */
1304 
1305 	u8 cdb[16];		/*20h */
1306 	union megasas_sgl sgl;	/*30h */
1307 
1308 } __attribute__ ((packed));
1309 
1310 struct megasas_dcmd_frame {
1311 
1312 	u8 cmd;			/*00h */
1313 	u8 reserved_0;		/*01h */
1314 	u8 cmd_status;		/*02h */
1315 	u8 reserved_1[4];	/*03h */
1316 	u8 sge_count;		/*07h */
1317 
1318 	u32 context;		/*08h */
1319 	u32 pad_0;		/*0Ch */
1320 
1321 	u16 flags;		/*10h */
1322 	u16 timeout;		/*12h */
1323 
1324 	u32 data_xfer_len;	/*14h */
1325 	u32 opcode;		/*18h */
1326 
1327 	union {			/*1Ch */
1328 		u8 b[12];
1329 		u16 s[6];
1330 		u32 w[3];
1331 	} mbox;
1332 
1333 	union megasas_sgl sgl;	/*28h */
1334 
1335 } __attribute__ ((packed));
1336 
1337 struct megasas_abort_frame {
1338 
1339 	u8 cmd;			/*00h */
1340 	u8 reserved_0;		/*01h */
1341 	u8 cmd_status;		/*02h */
1342 
1343 	u8 reserved_1;		/*03h */
1344 	u32 reserved_2;		/*04h */
1345 
1346 	u32 context;		/*08h */
1347 	u32 pad_0;		/*0Ch */
1348 
1349 	u16 flags;		/*10h */
1350 	u16 reserved_3;		/*12h */
1351 	u32 reserved_4;		/*14h */
1352 
1353 	u32 abort_context;	/*18h */
1354 	u32 pad_1;		/*1Ch */
1355 
1356 	u32 abort_mfi_phys_addr_lo;	/*20h */
1357 	u32 abort_mfi_phys_addr_hi;	/*24h */
1358 
1359 	u32 reserved_5[6];	/*28h */
1360 
1361 } __attribute__ ((packed));
1362 
1363 struct megasas_smp_frame {
1364 
1365 	u8 cmd;			/*00h */
1366 	u8 reserved_1;		/*01h */
1367 	u8 cmd_status;		/*02h */
1368 	u8 connection_status;	/*03h */
1369 
1370 	u8 reserved_2[3];	/*04h */
1371 	u8 sge_count;		/*07h */
1372 
1373 	u32 context;		/*08h */
1374 	u32 pad_0;		/*0Ch */
1375 
1376 	u16 flags;		/*10h */
1377 	u16 timeout;		/*12h */
1378 
1379 	u32 data_xfer_len;	/*14h */
1380 	u64 sas_addr;		/*18h */
1381 
1382 	union {
1383 		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: req */
1384 		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: req */
1385 	} sgl;
1386 
1387 } __attribute__ ((packed));
1388 
1389 struct megasas_stp_frame {
1390 
1391 	u8 cmd;			/*00h */
1392 	u8 reserved_1;		/*01h */
1393 	u8 cmd_status;		/*02h */
1394 	u8 reserved_2;		/*03h */
1395 
1396 	u8 target_id;		/*04h */
1397 	u8 reserved_3[2];	/*05h */
1398 	u8 sge_count;		/*07h */
1399 
1400 	u32 context;		/*08h */
1401 	u32 pad_0;		/*0Ch */
1402 
1403 	u16 flags;		/*10h */
1404 	u16 timeout;		/*12h */
1405 
1406 	u32 data_xfer_len;	/*14h */
1407 
1408 	u16 fis[10];		/*18h */
1409 	u32 stp_flags;
1410 
1411 	union {
1412 		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: data */
1413 		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: data */
1414 	} sgl;
1415 
1416 } __attribute__ ((packed));
1417 
1418 union megasas_frame {
1419 
1420 	struct megasas_header hdr;
1421 	struct megasas_init_frame init;
1422 	struct megasas_io_frame io;
1423 	struct megasas_pthru_frame pthru;
1424 	struct megasas_dcmd_frame dcmd;
1425 	struct megasas_abort_frame abort;
1426 	struct megasas_smp_frame smp;
1427 	struct megasas_stp_frame stp;
1428 
1429 	u8 raw_bytes[64];
1430 };
1431 
1432 struct megasas_cmd;
1433 
1434 union megasas_evt_class_locale {
1435 
1436 	struct {
1437 #ifndef __BIG_ENDIAN_BITFIELD
1438 		u16 locale;
1439 		u8 reserved;
1440 		s8 class;
1441 #else
1442 		s8 class;
1443 		u8 reserved;
1444 		u16 locale;
1445 #endif
1446 	} __attribute__ ((packed)) members;
1447 
1448 	u32 word;
1449 
1450 } __attribute__ ((packed));
1451 
1452 struct megasas_evt_log_info {
1453 	u32 newest_seq_num;
1454 	u32 oldest_seq_num;
1455 	u32 clear_seq_num;
1456 	u32 shutdown_seq_num;
1457 	u32 boot_seq_num;
1458 
1459 } __attribute__ ((packed));
1460 
1461 struct megasas_progress {
1462 
1463 	u16 progress;
1464 	u16 elapsed_seconds;
1465 
1466 } __attribute__ ((packed));
1467 
1468 struct megasas_evtarg_ld {
1469 
1470 	u16 target_id;
1471 	u8 ld_index;
1472 	u8 reserved;
1473 
1474 } __attribute__ ((packed));
1475 
1476 struct megasas_evtarg_pd {
1477 	u16 device_id;
1478 	u8 encl_index;
1479 	u8 slot_number;
1480 
1481 } __attribute__ ((packed));
1482 
1483 struct megasas_evt_detail {
1484 
1485 	u32 seq_num;
1486 	u32 time_stamp;
1487 	u32 code;
1488 	union megasas_evt_class_locale cl;
1489 	u8 arg_type;
1490 	u8 reserved1[15];
1491 
1492 	union {
1493 		struct {
1494 			struct megasas_evtarg_pd pd;
1495 			u8 cdb_length;
1496 			u8 sense_length;
1497 			u8 reserved[2];
1498 			u8 cdb[16];
1499 			u8 sense[64];
1500 		} __attribute__ ((packed)) cdbSense;
1501 
1502 		struct megasas_evtarg_ld ld;
1503 
1504 		struct {
1505 			struct megasas_evtarg_ld ld;
1506 			u64 count;
1507 		} __attribute__ ((packed)) ld_count;
1508 
1509 		struct {
1510 			u64 lba;
1511 			struct megasas_evtarg_ld ld;
1512 		} __attribute__ ((packed)) ld_lba;
1513 
1514 		struct {
1515 			struct megasas_evtarg_ld ld;
1516 			u32 prevOwner;
1517 			u32 newOwner;
1518 		} __attribute__ ((packed)) ld_owner;
1519 
1520 		struct {
1521 			u64 ld_lba;
1522 			u64 pd_lba;
1523 			struct megasas_evtarg_ld ld;
1524 			struct megasas_evtarg_pd pd;
1525 		} __attribute__ ((packed)) ld_lba_pd_lba;
1526 
1527 		struct {
1528 			struct megasas_evtarg_ld ld;
1529 			struct megasas_progress prog;
1530 		} __attribute__ ((packed)) ld_prog;
1531 
1532 		struct {
1533 			struct megasas_evtarg_ld ld;
1534 			u32 prev_state;
1535 			u32 new_state;
1536 		} __attribute__ ((packed)) ld_state;
1537 
1538 		struct {
1539 			u64 strip;
1540 			struct megasas_evtarg_ld ld;
1541 		} __attribute__ ((packed)) ld_strip;
1542 
1543 		struct megasas_evtarg_pd pd;
1544 
1545 		struct {
1546 			struct megasas_evtarg_pd pd;
1547 			u32 err;
1548 		} __attribute__ ((packed)) pd_err;
1549 
1550 		struct {
1551 			u64 lba;
1552 			struct megasas_evtarg_pd pd;
1553 		} __attribute__ ((packed)) pd_lba;
1554 
1555 		struct {
1556 			u64 lba;
1557 			struct megasas_evtarg_pd pd;
1558 			struct megasas_evtarg_ld ld;
1559 		} __attribute__ ((packed)) pd_lba_ld;
1560 
1561 		struct {
1562 			struct megasas_evtarg_pd pd;
1563 			struct megasas_progress prog;
1564 		} __attribute__ ((packed)) pd_prog;
1565 
1566 		struct {
1567 			struct megasas_evtarg_pd pd;
1568 			u32 prevState;
1569 			u32 newState;
1570 		} __attribute__ ((packed)) pd_state;
1571 
1572 		struct {
1573 			u16 vendorId;
1574 			u16 deviceId;
1575 			u16 subVendorId;
1576 			u16 subDeviceId;
1577 		} __attribute__ ((packed)) pci;
1578 
1579 		u32 rate;
1580 		char str[96];
1581 
1582 		struct {
1583 			u32 rtc;
1584 			u32 elapsedSeconds;
1585 		} __attribute__ ((packed)) time;
1586 
1587 		struct {
1588 			u32 ecar;
1589 			u32 elog;
1590 			char str[64];
1591 		} __attribute__ ((packed)) ecc;
1592 
1593 		u8 b[96];
1594 		u16 s[48];
1595 		u32 w[24];
1596 		u64 d[12];
1597 	} args;
1598 
1599 	char description[128];
1600 
1601 } __attribute__ ((packed));
1602 
1603 struct megasas_aen_event {
1604 	struct delayed_work hotplug_work;
1605 	struct megasas_instance *instance;
1606 };
1607 
1608 struct megasas_irq_context {
1609 	struct megasas_instance *instance;
1610 	u32 MSIxIndex;
1611 };
1612 
1613 struct megasas_instance {
1614 
1615 	u32 *producer;
1616 	dma_addr_t producer_h;
1617 	u32 *consumer;
1618 	dma_addr_t consumer_h;
1619 	struct MR_LD_VF_AFFILIATION *vf_affiliation;
1620 	dma_addr_t vf_affiliation_h;
1621 	struct MR_LD_VF_AFFILIATION_111 *vf_affiliation_111;
1622 	dma_addr_t vf_affiliation_111_h;
1623 	struct MR_CTRL_HB_HOST_MEM *hb_host_mem;
1624 	dma_addr_t hb_host_mem_h;
1625 
1626 	u32 *reply_queue;
1627 	dma_addr_t reply_queue_h;
1628 
1629 	u32 *crash_dump_buf;
1630 	dma_addr_t crash_dump_h;
1631 	void *crash_buf[MAX_CRASH_DUMP_SIZE];
1632 	u32 crash_buf_pages;
1633 	unsigned int    fw_crash_buffer_size;
1634 	unsigned int    fw_crash_state;
1635 	unsigned int    fw_crash_buffer_offset;
1636 	u32 drv_buf_index;
1637 	u32 drv_buf_alloc;
1638 	u32 crash_dump_fw_support;
1639 	u32 crash_dump_drv_support;
1640 	u32 crash_dump_app_support;
1641 	spinlock_t crashdump_lock;
1642 
1643 	struct megasas_register_set __iomem *reg_set;
1644 	u32 *reply_post_host_index_addr[MR_MAX_MSIX_REG_ARRAY];
1645 	struct megasas_pd_list          pd_list[MEGASAS_MAX_PD];
1646 	struct megasas_pd_list          local_pd_list[MEGASAS_MAX_PD];
1647 	u8     ld_ids[MEGASAS_MAX_LD_IDS];
1648 	s8 init_id;
1649 
1650 	u16 max_num_sge;
1651 	u16 max_fw_cmds;
1652 	/* For Fusion its num IOCTL cmds, for others MFI based its
1653 	   max_fw_cmds */
1654 	u16 max_mfi_cmds;
1655 	u32 max_sectors_per_req;
1656 	struct megasas_aen_event *ev;
1657 
1658 	struct megasas_cmd **cmd_list;
1659 	struct list_head cmd_pool;
1660 	/* used to sync fire the cmd to fw */
1661 	spinlock_t mfi_pool_lock;
1662 	/* used to sync fire the cmd to fw */
1663 	spinlock_t hba_lock;
1664 	/* used to synch producer, consumer ptrs in dpc */
1665 	spinlock_t completion_lock;
1666 	struct dma_pool *frame_dma_pool;
1667 	struct dma_pool *sense_dma_pool;
1668 
1669 	struct megasas_evt_detail *evt_detail;
1670 	dma_addr_t evt_detail_h;
1671 	struct megasas_cmd *aen_cmd;
1672 	struct mutex aen_mutex;
1673 	struct semaphore ioctl_sem;
1674 
1675 	struct Scsi_Host *host;
1676 
1677 	wait_queue_head_t int_cmd_wait_q;
1678 	wait_queue_head_t abort_cmd_wait_q;
1679 
1680 	struct pci_dev *pdev;
1681 	u32 unique_id;
1682 	u32 fw_support_ieee;
1683 
1684 	atomic_t fw_outstanding;
1685 	atomic_t fw_reset_no_pci_access;
1686 
1687 	struct megasas_instance_template *instancet;
1688 	struct tasklet_struct isr_tasklet;
1689 	struct work_struct work_init;
1690 	struct work_struct crash_init;
1691 
1692 	u8 flag;
1693 	u8 unload;
1694 	u8 flag_ieee;
1695 	u8 issuepend_done;
1696 	u8 disableOnlineCtrlReset;
1697 	u8 UnevenSpanSupport;
1698 
1699 	u8 supportmax256vd;
1700 	u16 fw_supported_vd_count;
1701 	u16 fw_supported_pd_count;
1702 
1703 	u16 drv_supported_vd_count;
1704 	u16 drv_supported_pd_count;
1705 
1706 	u8 adprecovery;
1707 	unsigned long last_time;
1708 	u32 mfiStatus;
1709 	u32 last_seq_num;
1710 
1711 	struct list_head internal_reset_pending_q;
1712 
1713 	/* Ptr to hba specific information */
1714 	void *ctrl_context;
1715 	u32 ctrl_context_pages;
1716 	struct megasas_ctrl_info *ctrl_info;
1717 	unsigned int msix_vectors;
1718 	struct msix_entry msixentry[MEGASAS_MAX_MSIX_QUEUES];
1719 	struct megasas_irq_context irq_context[MEGASAS_MAX_MSIX_QUEUES];
1720 	u64 map_id;
1721 	struct megasas_cmd *map_update_cmd;
1722 	unsigned long bar;
1723 	long reset_flags;
1724 	struct mutex reset_mutex;
1725 	struct timer_list sriov_heartbeat_timer;
1726 	char skip_heartbeat_timer_del;
1727 	u8 requestorId;
1728 	char PlasmaFW111;
1729 	char mpio;
1730 	int throttlequeuedepth;
1731 	u8 mask_interrupts;
1732 	u8 is_imr;
1733 };
1734 struct MR_LD_VF_MAP {
1735 	u32 size;
1736 	union MR_LD_REF ref;
1737 	u8 ldVfCount;
1738 	u8 reserved[6];
1739 	u8 policy[1];
1740 };
1741 
1742 struct MR_LD_VF_AFFILIATION {
1743 	u32 size;
1744 	u8 ldCount;
1745 	u8 vfCount;
1746 	u8 thisVf;
1747 	u8 reserved[9];
1748 	struct MR_LD_VF_MAP map[1];
1749 };
1750 
1751 /* Plasma 1.11 FW backward compatibility structures */
1752 #define IOV_111_OFFSET 0x7CE
1753 #define MAX_VIRTUAL_FUNCTIONS 8
1754 #define MR_LD_ACCESS_HIDDEN 15
1755 
1756 struct IOV_111 {
1757 	u8 maxVFsSupported;
1758 	u8 numVFsEnabled;
1759 	u8 requestorId;
1760 	u8 reserved[5];
1761 };
1762 
1763 struct MR_LD_VF_MAP_111 {
1764 	u8 targetId;
1765 	u8 reserved[3];
1766 	u8 policy[MAX_VIRTUAL_FUNCTIONS];
1767 };
1768 
1769 struct MR_LD_VF_AFFILIATION_111 {
1770 	u8 vdCount;
1771 	u8 vfCount;
1772 	u8 thisVf;
1773 	u8 reserved[5];
1774 	struct MR_LD_VF_MAP_111 map[MAX_LOGICAL_DRIVES];
1775 };
1776 
1777 struct MR_CTRL_HB_HOST_MEM {
1778 	struct {
1779 		u32 fwCounter;	/* Firmware heart beat counter */
1780 		struct {
1781 			u32 debugmode:1; /* 1=Firmware is in debug mode.
1782 					    Heart beat will not be updated. */
1783 			u32 reserved:31;
1784 		} debug;
1785 		u32 reserved_fw[6];
1786 		u32 driverCounter; /* Driver heart beat counter.  0x20 */
1787 		u32 reserved_driver[7];
1788 	} HB;
1789 	u8 pad[0x400-0x40];
1790 };
1791 
1792 enum {
1793 	MEGASAS_HBA_OPERATIONAL			= 0,
1794 	MEGASAS_ADPRESET_SM_INFAULT		= 1,
1795 	MEGASAS_ADPRESET_SM_FW_RESET_SUCCESS	= 2,
1796 	MEGASAS_ADPRESET_SM_OPERATIONAL		= 3,
1797 	MEGASAS_HW_CRITICAL_ERROR		= 4,
1798 	MEGASAS_ADPRESET_SM_POLLING		= 5,
1799 	MEGASAS_ADPRESET_INPROG_SIGN		= 0xDEADDEAD,
1800 };
1801 
1802 struct megasas_instance_template {
1803 	void (*fire_cmd)(struct megasas_instance *, dma_addr_t, \
1804 		u32, struct megasas_register_set __iomem *);
1805 
1806 	void (*enable_intr)(struct megasas_instance *);
1807 	void (*disable_intr)(struct megasas_instance *);
1808 
1809 	int (*clear_intr)(struct megasas_register_set __iomem *);
1810 
1811 	u32 (*read_fw_status_reg)(struct megasas_register_set __iomem *);
1812 	int (*adp_reset)(struct megasas_instance *, \
1813 		struct megasas_register_set __iomem *);
1814 	int (*check_reset)(struct megasas_instance *, \
1815 		struct megasas_register_set __iomem *);
1816 	irqreturn_t (*service_isr)(int irq, void *devp);
1817 	void (*tasklet)(unsigned long);
1818 	u32 (*init_adapter)(struct megasas_instance *);
1819 	u32 (*build_and_issue_cmd) (struct megasas_instance *,
1820 				    struct scsi_cmnd *);
1821 	void (*issue_dcmd) (struct megasas_instance *instance,
1822 			    struct megasas_cmd *cmd);
1823 };
1824 
1825 #define MEGASAS_IS_LOGICAL(scp)						\
1826 	(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
1827 
1828 #define MEGASAS_DEV_INDEX(inst, scp)					\
1829 	((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 	\
1830 	scp->device->id
1831 
1832 struct megasas_cmd {
1833 
1834 	union megasas_frame *frame;
1835 	dma_addr_t frame_phys_addr;
1836 	u8 *sense;
1837 	dma_addr_t sense_phys_addr;
1838 
1839 	u32 index;
1840 	u8 sync_cmd;
1841 	u8 cmd_status;
1842 	u8 abort_aen;
1843 	u8 retry_for_fw_reset;
1844 
1845 
1846 	struct list_head list;
1847 	struct scsi_cmnd *scmd;
1848 
1849 	void *mpt_pthr_cmd_blocked;
1850 	atomic_t mfi_mpt_pthr;
1851 	u8 is_wait_event;
1852 
1853 	struct megasas_instance *instance;
1854 	union {
1855 		struct {
1856 			u16 smid;
1857 			u16 resvd;
1858 		} context;
1859 		u32 frame_count;
1860 	};
1861 };
1862 
1863 #define MAX_MGMT_ADAPTERS		1024
1864 #define MAX_IOCTL_SGE			16
1865 
1866 struct megasas_iocpacket {
1867 
1868 	u16 host_no;
1869 	u16 __pad1;
1870 	u32 sgl_off;
1871 	u32 sge_count;
1872 	u32 sense_off;
1873 	u32 sense_len;
1874 	union {
1875 		u8 raw[128];
1876 		struct megasas_header hdr;
1877 	} frame;
1878 
1879 	struct iovec sgl[MAX_IOCTL_SGE];
1880 
1881 } __attribute__ ((packed));
1882 
1883 struct megasas_aen {
1884 	u16 host_no;
1885 	u16 __pad1;
1886 	u32 seq_num;
1887 	u32 class_locale_word;
1888 } __attribute__ ((packed));
1889 
1890 #ifdef CONFIG_COMPAT
1891 struct compat_megasas_iocpacket {
1892 	u16 host_no;
1893 	u16 __pad1;
1894 	u32 sgl_off;
1895 	u32 sge_count;
1896 	u32 sense_off;
1897 	u32 sense_len;
1898 	union {
1899 		u8 raw[128];
1900 		struct megasas_header hdr;
1901 	} frame;
1902 	struct compat_iovec sgl[MAX_IOCTL_SGE];
1903 } __attribute__ ((packed));
1904 
1905 #define MEGASAS_IOC_FIRMWARE32	_IOWR('M', 1, struct compat_megasas_iocpacket)
1906 #endif
1907 
1908 #define MEGASAS_IOC_FIRMWARE	_IOWR('M', 1, struct megasas_iocpacket)
1909 #define MEGASAS_IOC_GET_AEN	_IOW('M', 3, struct megasas_aen)
1910 
1911 struct megasas_mgmt_info {
1912 
1913 	u16 count;
1914 	struct megasas_instance *instance[MAX_MGMT_ADAPTERS];
1915 	int max_index;
1916 };
1917 
1918 u8
1919 MR_BuildRaidContext(struct megasas_instance *instance,
1920 		    struct IO_REQUEST_INFO *io_info,
1921 		    struct RAID_CONTEXT *pRAID_Context,
1922 		    struct MR_DRV_RAID_MAP_ALL *map, u8 **raidLUN);
1923 u8 MR_TargetIdToLdGet(u32 ldTgtId, struct MR_DRV_RAID_MAP_ALL *map);
1924 struct MR_LD_RAID *MR_LdRaidGet(u32 ld, struct MR_DRV_RAID_MAP_ALL *map);
1925 u16 MR_ArPdGet(u32 ar, u32 arm, struct MR_DRV_RAID_MAP_ALL *map);
1926 u16 MR_LdSpanArrayGet(u32 ld, u32 span, struct MR_DRV_RAID_MAP_ALL *map);
1927 u16 MR_PdDevHandleGet(u32 pd, struct MR_DRV_RAID_MAP_ALL *map);
1928 u16 MR_GetLDTgtId(u32 ld, struct MR_DRV_RAID_MAP_ALL *map);
1929 
1930 u16 get_updated_dev_handle(struct megasas_instance *instance,
1931 	struct LD_LOAD_BALANCE_INFO *lbInfo, struct IO_REQUEST_INFO *in_info);
1932 void mr_update_load_balance_params(struct MR_DRV_RAID_MAP_ALL *map,
1933 	struct LD_LOAD_BALANCE_INFO *lbInfo);
1934 int megasas_get_ctrl_info(struct megasas_instance *instance);
1935 int megasas_set_crash_dump_params(struct megasas_instance *instance,
1936 	u8 crash_buf_state);
1937 void megasas_free_host_crash_buffer(struct megasas_instance *instance);
1938 void megasas_fusion_crash_dump_wq(struct work_struct *work);
1939 
1940 void megasas_return_cmd_fusion(struct megasas_instance *instance,
1941 	struct megasas_cmd_fusion *cmd);
1942 int megasas_issue_blocked_cmd(struct megasas_instance *instance,
1943 	struct megasas_cmd *cmd, int timeout);
1944 void __megasas_return_cmd(struct megasas_instance *instance,
1945 	struct megasas_cmd *cmd);
1946 
1947 void megasas_return_mfi_mpt_pthr(struct megasas_instance *instance,
1948 	struct megasas_cmd *cmd_mfi, struct megasas_cmd_fusion *cmd_fusion);
1949 
1950 #endif				/*LSI_MEGARAID_SAS_H */
1951