1 /*
2  *  Linux MegaRAID driver for SAS based RAID controllers
3  *
4  *  Copyright (c) 2009-2011  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.h
21  *
22  *  Authors: LSI Corporation
23  *
24  *  Send feedback to: <megaraidlinux@lsi.com>
25  *
26  *  Mail to: LSI Corporation, 1621 Barber Lane, Milpitas, CA 95035
27  *     ATTN: Linuxraid
28  */
29 
30 #ifndef LSI_MEGARAID_SAS_H
31 #define LSI_MEGARAID_SAS_H
32 
33 /*
34  * MegaRAID SAS Driver meta data
35  */
36 #define MEGASAS_VERSION				"00.00.05.34-rc1"
37 #define MEGASAS_RELDATE				"Feb. 24, 2011"
38 #define MEGASAS_EXT_VERSION			"Thu. Feb. 24 17:00:00 PDT 2011"
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 
52 /*
53  * =====================================
54  * MegaRAID SAS MFI firmware definitions
55  * =====================================
56  */
57 
58 /*
59  * MFI stands for  MegaRAID SAS FW Interface. This is just a moniker for
60  * protocol between the software and firmware. Commands are issued using
61  * "message frames"
62  */
63 
64 /*
65  * FW posts its state in upper 4 bits of outbound_msg_0 register
66  */
67 #define MFI_STATE_MASK				0xF0000000
68 #define MFI_STATE_UNDEFINED			0x00000000
69 #define MFI_STATE_BB_INIT			0x10000000
70 #define MFI_STATE_FW_INIT			0x40000000
71 #define MFI_STATE_WAIT_HANDSHAKE		0x60000000
72 #define MFI_STATE_FW_INIT_2			0x70000000
73 #define MFI_STATE_DEVICE_SCAN			0x80000000
74 #define MFI_STATE_BOOT_MESSAGE_PENDING		0x90000000
75 #define MFI_STATE_FLUSH_CACHE			0xA0000000
76 #define MFI_STATE_READY				0xB0000000
77 #define MFI_STATE_OPERATIONAL			0xC0000000
78 #define MFI_STATE_FAULT				0xF0000000
79 #define  MFI_RESET_REQUIRED			0x00000001
80 
81 #define MEGAMFI_FRAME_SIZE			64
82 
83 /*
84  * During FW init, clear pending cmds & reset state using inbound_msg_0
85  *
86  * ABORT	: Abort all pending cmds
87  * READY	: Move from OPERATIONAL to READY state; discard queue info
88  * MFIMODE	: Discard (possible) low MFA posted in 64-bit mode (??)
89  * CLR_HANDSHAKE: FW is waiting for HANDSHAKE from BIOS or Driver
90  * HOTPLUG	: Resume from Hotplug
91  * MFI_STOP_ADP	: Send signal to FW to stop processing
92  */
93 #define WRITE_SEQUENCE_OFFSET		(0x0000000FC) /* I20 */
94 #define HOST_DIAGNOSTIC_OFFSET		(0x000000F8)  /* I20 */
95 #define DIAG_WRITE_ENABLE			(0x00000080)
96 #define DIAG_RESET_ADAPTER			(0x00000004)
97 
98 #define MFI_ADP_RESET				0x00000040
99 #define MFI_INIT_ABORT				0x00000001
100 #define MFI_INIT_READY				0x00000002
101 #define MFI_INIT_MFIMODE			0x00000004
102 #define MFI_INIT_CLEAR_HANDSHAKE		0x00000008
103 #define MFI_INIT_HOTPLUG			0x00000010
104 #define MFI_STOP_ADP				0x00000020
105 #define MFI_RESET_FLAGS				MFI_INIT_READY| \
106 						MFI_INIT_MFIMODE| \
107 						MFI_INIT_ABORT
108 
109 /*
110  * MFI frame flags
111  */
112 #define MFI_FRAME_POST_IN_REPLY_QUEUE		0x0000
113 #define MFI_FRAME_DONT_POST_IN_REPLY_QUEUE	0x0001
114 #define MFI_FRAME_SGL32				0x0000
115 #define MFI_FRAME_SGL64				0x0002
116 #define MFI_FRAME_SENSE32			0x0000
117 #define MFI_FRAME_SENSE64			0x0004
118 #define MFI_FRAME_DIR_NONE			0x0000
119 #define MFI_FRAME_DIR_WRITE			0x0008
120 #define MFI_FRAME_DIR_READ			0x0010
121 #define MFI_FRAME_DIR_BOTH			0x0018
122 #define MFI_FRAME_IEEE                          0x0020
123 
124 /*
125  * Definition for cmd_status
126  */
127 #define MFI_CMD_STATUS_POLL_MODE		0xFF
128 
129 /*
130  * MFI command opcodes
131  */
132 #define MFI_CMD_INIT				0x00
133 #define MFI_CMD_LD_READ				0x01
134 #define MFI_CMD_LD_WRITE			0x02
135 #define MFI_CMD_LD_SCSI_IO			0x03
136 #define MFI_CMD_PD_SCSI_IO			0x04
137 #define MFI_CMD_DCMD				0x05
138 #define MFI_CMD_ABORT				0x06
139 #define MFI_CMD_SMP				0x07
140 #define MFI_CMD_STP				0x08
141 
142 #define MR_DCMD_CTRL_GET_INFO			0x01010000
143 #define MR_DCMD_LD_GET_LIST			0x03010000
144 
145 #define MR_DCMD_CTRL_CACHE_FLUSH		0x01101000
146 #define MR_FLUSH_CTRL_CACHE			0x01
147 #define MR_FLUSH_DISK_CACHE			0x02
148 
149 #define MR_DCMD_CTRL_SHUTDOWN			0x01050000
150 #define MR_DCMD_HIBERNATE_SHUTDOWN		0x01060000
151 #define MR_ENABLE_DRIVE_SPINDOWN		0x01
152 
153 #define MR_DCMD_CTRL_EVENT_GET_INFO		0x01040100
154 #define MR_DCMD_CTRL_EVENT_GET			0x01040300
155 #define MR_DCMD_CTRL_EVENT_WAIT			0x01040500
156 #define MR_DCMD_LD_GET_PROPERTIES		0x03030000
157 
158 #define MR_DCMD_CLUSTER				0x08000000
159 #define MR_DCMD_CLUSTER_RESET_ALL		0x08010100
160 #define MR_DCMD_CLUSTER_RESET_LD		0x08010200
161 #define MR_DCMD_PD_LIST_QUERY                   0x02010100
162 
163 /*
164  * MFI command completion codes
165  */
166 enum MFI_STAT {
167 	MFI_STAT_OK = 0x00,
168 	MFI_STAT_INVALID_CMD = 0x01,
169 	MFI_STAT_INVALID_DCMD = 0x02,
170 	MFI_STAT_INVALID_PARAMETER = 0x03,
171 	MFI_STAT_INVALID_SEQUENCE_NUMBER = 0x04,
172 	MFI_STAT_ABORT_NOT_POSSIBLE = 0x05,
173 	MFI_STAT_APP_HOST_CODE_NOT_FOUND = 0x06,
174 	MFI_STAT_APP_IN_USE = 0x07,
175 	MFI_STAT_APP_NOT_INITIALIZED = 0x08,
176 	MFI_STAT_ARRAY_INDEX_INVALID = 0x09,
177 	MFI_STAT_ARRAY_ROW_NOT_EMPTY = 0x0a,
178 	MFI_STAT_CONFIG_RESOURCE_CONFLICT = 0x0b,
179 	MFI_STAT_DEVICE_NOT_FOUND = 0x0c,
180 	MFI_STAT_DRIVE_TOO_SMALL = 0x0d,
181 	MFI_STAT_FLASH_ALLOC_FAIL = 0x0e,
182 	MFI_STAT_FLASH_BUSY = 0x0f,
183 	MFI_STAT_FLASH_ERROR = 0x10,
184 	MFI_STAT_FLASH_IMAGE_BAD = 0x11,
185 	MFI_STAT_FLASH_IMAGE_INCOMPLETE = 0x12,
186 	MFI_STAT_FLASH_NOT_OPEN = 0x13,
187 	MFI_STAT_FLASH_NOT_STARTED = 0x14,
188 	MFI_STAT_FLUSH_FAILED = 0x15,
189 	MFI_STAT_HOST_CODE_NOT_FOUNT = 0x16,
190 	MFI_STAT_LD_CC_IN_PROGRESS = 0x17,
191 	MFI_STAT_LD_INIT_IN_PROGRESS = 0x18,
192 	MFI_STAT_LD_LBA_OUT_OF_RANGE = 0x19,
193 	MFI_STAT_LD_MAX_CONFIGURED = 0x1a,
194 	MFI_STAT_LD_NOT_OPTIMAL = 0x1b,
195 	MFI_STAT_LD_RBLD_IN_PROGRESS = 0x1c,
196 	MFI_STAT_LD_RECON_IN_PROGRESS = 0x1d,
197 	MFI_STAT_LD_WRONG_RAID_LEVEL = 0x1e,
198 	MFI_STAT_MAX_SPARES_EXCEEDED = 0x1f,
199 	MFI_STAT_MEMORY_NOT_AVAILABLE = 0x20,
200 	MFI_STAT_MFC_HW_ERROR = 0x21,
201 	MFI_STAT_NO_HW_PRESENT = 0x22,
202 	MFI_STAT_NOT_FOUND = 0x23,
203 	MFI_STAT_NOT_IN_ENCL = 0x24,
204 	MFI_STAT_PD_CLEAR_IN_PROGRESS = 0x25,
205 	MFI_STAT_PD_TYPE_WRONG = 0x26,
206 	MFI_STAT_PR_DISABLED = 0x27,
207 	MFI_STAT_ROW_INDEX_INVALID = 0x28,
208 	MFI_STAT_SAS_CONFIG_INVALID_ACTION = 0x29,
209 	MFI_STAT_SAS_CONFIG_INVALID_DATA = 0x2a,
210 	MFI_STAT_SAS_CONFIG_INVALID_PAGE = 0x2b,
211 	MFI_STAT_SAS_CONFIG_INVALID_TYPE = 0x2c,
212 	MFI_STAT_SCSI_DONE_WITH_ERROR = 0x2d,
213 	MFI_STAT_SCSI_IO_FAILED = 0x2e,
214 	MFI_STAT_SCSI_RESERVATION_CONFLICT = 0x2f,
215 	MFI_STAT_SHUTDOWN_FAILED = 0x30,
216 	MFI_STAT_TIME_NOT_SET = 0x31,
217 	MFI_STAT_WRONG_STATE = 0x32,
218 	MFI_STAT_LD_OFFLINE = 0x33,
219 	MFI_STAT_PEER_NOTIFICATION_REJECTED = 0x34,
220 	MFI_STAT_PEER_NOTIFICATION_FAILED = 0x35,
221 	MFI_STAT_RESERVATION_IN_PROGRESS = 0x36,
222 	MFI_STAT_I2C_ERRORS_DETECTED = 0x37,
223 	MFI_STAT_PCI_ERRORS_DETECTED = 0x38,
224 
225 	MFI_STAT_INVALID_STATUS = 0xFF
226 };
227 
228 /*
229  * Number of mailbox bytes in DCMD message frame
230  */
231 #define MFI_MBOX_SIZE				12
232 
233 enum MR_EVT_CLASS {
234 
235 	MR_EVT_CLASS_DEBUG = -2,
236 	MR_EVT_CLASS_PROGRESS = -1,
237 	MR_EVT_CLASS_INFO = 0,
238 	MR_EVT_CLASS_WARNING = 1,
239 	MR_EVT_CLASS_CRITICAL = 2,
240 	MR_EVT_CLASS_FATAL = 3,
241 	MR_EVT_CLASS_DEAD = 4,
242 
243 };
244 
245 enum MR_EVT_LOCALE {
246 
247 	MR_EVT_LOCALE_LD = 0x0001,
248 	MR_EVT_LOCALE_PD = 0x0002,
249 	MR_EVT_LOCALE_ENCL = 0x0004,
250 	MR_EVT_LOCALE_BBU = 0x0008,
251 	MR_EVT_LOCALE_SAS = 0x0010,
252 	MR_EVT_LOCALE_CTRL = 0x0020,
253 	MR_EVT_LOCALE_CONFIG = 0x0040,
254 	MR_EVT_LOCALE_CLUSTER = 0x0080,
255 	MR_EVT_LOCALE_ALL = 0xffff,
256 
257 };
258 
259 enum MR_EVT_ARGS {
260 
261 	MR_EVT_ARGS_NONE,
262 	MR_EVT_ARGS_CDB_SENSE,
263 	MR_EVT_ARGS_LD,
264 	MR_EVT_ARGS_LD_COUNT,
265 	MR_EVT_ARGS_LD_LBA,
266 	MR_EVT_ARGS_LD_OWNER,
267 	MR_EVT_ARGS_LD_LBA_PD_LBA,
268 	MR_EVT_ARGS_LD_PROG,
269 	MR_EVT_ARGS_LD_STATE,
270 	MR_EVT_ARGS_LD_STRIP,
271 	MR_EVT_ARGS_PD,
272 	MR_EVT_ARGS_PD_ERR,
273 	MR_EVT_ARGS_PD_LBA,
274 	MR_EVT_ARGS_PD_LBA_LD,
275 	MR_EVT_ARGS_PD_PROG,
276 	MR_EVT_ARGS_PD_STATE,
277 	MR_EVT_ARGS_PCI,
278 	MR_EVT_ARGS_RATE,
279 	MR_EVT_ARGS_STR,
280 	MR_EVT_ARGS_TIME,
281 	MR_EVT_ARGS_ECC,
282 	MR_EVT_ARGS_LD_PROP,
283 	MR_EVT_ARGS_PD_SPARE,
284 	MR_EVT_ARGS_PD_INDEX,
285 	MR_EVT_ARGS_DIAG_PASS,
286 	MR_EVT_ARGS_DIAG_FAIL,
287 	MR_EVT_ARGS_PD_LBA_LBA,
288 	MR_EVT_ARGS_PORT_PHY,
289 	MR_EVT_ARGS_PD_MISSING,
290 	MR_EVT_ARGS_PD_ADDRESS,
291 	MR_EVT_ARGS_BITMAP,
292 	MR_EVT_ARGS_CONNECTOR,
293 	MR_EVT_ARGS_PD_PD,
294 	MR_EVT_ARGS_PD_FRU,
295 	MR_EVT_ARGS_PD_PATHINFO,
296 	MR_EVT_ARGS_PD_POWER_STATE,
297 	MR_EVT_ARGS_GENERIC,
298 };
299 
300 /*
301  * define constants for device list query options
302  */
303 enum MR_PD_QUERY_TYPE {
304 	MR_PD_QUERY_TYPE_ALL                = 0,
305 	MR_PD_QUERY_TYPE_STATE              = 1,
306 	MR_PD_QUERY_TYPE_POWER_STATE        = 2,
307 	MR_PD_QUERY_TYPE_MEDIA_TYPE         = 3,
308 	MR_PD_QUERY_TYPE_SPEED              = 4,
309 	MR_PD_QUERY_TYPE_EXPOSED_TO_HOST    = 5,
310 };
311 
312 #define MR_EVT_CFG_CLEARED                              0x0004
313 #define MR_EVT_LD_STATE_CHANGE                          0x0051
314 #define MR_EVT_PD_INSERTED                              0x005b
315 #define MR_EVT_PD_REMOVED                               0x0070
316 #define MR_EVT_LD_CREATED                               0x008a
317 #define MR_EVT_LD_DELETED                               0x008b
318 #define MR_EVT_FOREIGN_CFG_IMPORTED                     0x00db
319 #define MR_EVT_LD_OFFLINE                               0x00fc
320 #define MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED             0x0152
321 #define MAX_LOGICAL_DRIVES				64
322 
323 enum MR_PD_STATE {
324 	MR_PD_STATE_UNCONFIGURED_GOOD   = 0x00,
325 	MR_PD_STATE_UNCONFIGURED_BAD    = 0x01,
326 	MR_PD_STATE_HOT_SPARE           = 0x02,
327 	MR_PD_STATE_OFFLINE             = 0x10,
328 	MR_PD_STATE_FAILED              = 0x11,
329 	MR_PD_STATE_REBUILD             = 0x14,
330 	MR_PD_STATE_ONLINE              = 0x18,
331 	MR_PD_STATE_COPYBACK            = 0x20,
332 	MR_PD_STATE_SYSTEM              = 0x40,
333  };
334 
335 
336  /*
337  * defines the physical drive address structure
338  */
339 struct MR_PD_ADDRESS {
340 	u16     deviceId;
341 	u16     enclDeviceId;
342 
343 	union {
344 		struct {
345 			u8  enclIndex;
346 			u8  slotNumber;
347 		} mrPdAddress;
348 		struct {
349 			u8  enclPosition;
350 			u8  enclConnectorIndex;
351 		} mrEnclAddress;
352 	};
353 	u8      scsiDevType;
354 	union {
355 		u8      connectedPortBitmap;
356 		u8      connectedPortNumbers;
357 	};
358 	u64     sasAddr[2];
359 } __packed;
360 
361 /*
362  * defines the physical drive list structure
363  */
364 struct MR_PD_LIST {
365 	u32             size;
366 	u32             count;
367 	struct MR_PD_ADDRESS   addr[1];
368 } __packed;
369 
370 struct megasas_pd_list {
371 	u16             tid;
372 	u8             driveType;
373 	u8             driveState;
374 } __packed;
375 
376  /*
377  * defines the logical drive reference structure
378  */
379 union  MR_LD_REF {
380 	struct {
381 		u8      targetId;
382 		u8      reserved;
383 		u16     seqNum;
384 	};
385 	u32     ref;
386 } __packed;
387 
388 /*
389  * defines the logical drive list structure
390  */
391 struct MR_LD_LIST {
392 	u32     ldCount;
393 	u32     reserved;
394 	struct {
395 		union MR_LD_REF   ref;
396 		u8          state;
397 		u8          reserved[3];
398 		u64         size;
399 	} ldList[MAX_LOGICAL_DRIVES];
400 } __packed;
401 
402 /*
403  * SAS controller properties
404  */
405 struct megasas_ctrl_prop {
406 
407 	u16 seq_num;
408 	u16 pred_fail_poll_interval;
409 	u16 intr_throttle_count;
410 	u16 intr_throttle_timeouts;
411 	u8 rebuild_rate;
412 	u8 patrol_read_rate;
413 	u8 bgi_rate;
414 	u8 cc_rate;
415 	u8 recon_rate;
416 	u8 cache_flush_interval;
417 	u8 spinup_drv_count;
418 	u8 spinup_delay;
419 	u8 cluster_enable;
420 	u8 coercion_mode;
421 	u8 alarm_enable;
422 	u8 disable_auto_rebuild;
423 	u8 disable_battery_warn;
424 	u8 ecc_bucket_size;
425 	u16 ecc_bucket_leak_rate;
426 	u8 restore_hotspare_on_insertion;
427 	u8 expose_encl_devices;
428 	u8 maintainPdFailHistory;
429 	u8 disallowHostRequestReordering;
430 	u8 abortCCOnError;
431 	u8 loadBalanceMode;
432 	u8 disableAutoDetectBackplane;
433 
434 	u8 snapVDSpace;
435 
436 	/*
437 	* Add properties that can be controlled by
438 	* a bit in the following structure.
439 	*/
440 	struct {
441 		u32     copyBackDisabled            : 1;
442 		u32     SMARTerEnabled              : 1;
443 		u32     prCorrectUnconfiguredAreas  : 1;
444 		u32     useFdeOnly                  : 1;
445 		u32     disableNCQ                  : 1;
446 		u32     SSDSMARTerEnabled           : 1;
447 		u32     SSDPatrolReadEnabled        : 1;
448 		u32     enableSpinDownUnconfigured  : 1;
449 		u32     autoEnhancedImport          : 1;
450 		u32     enableSecretKeyControl      : 1;
451 		u32     disableOnlineCtrlReset      : 1;
452 		u32     allowBootWithPinnedCache    : 1;
453 		u32     disableSpinDownHS           : 1;
454 		u32     enableJBOD                  : 1;
455 		u32     reserved                    :18;
456 	} OnOffProperties;
457 	u8 autoSnapVDSpace;
458 	u8 viewSpace;
459 	u16 spinDownTime;
460 	u8  reserved[24];
461 } __packed;
462 
463 /*
464  * SAS controller information
465  */
466 struct megasas_ctrl_info {
467 
468 	/*
469 	 * PCI device information
470 	 */
471 	struct {
472 
473 		u16 vendor_id;
474 		u16 device_id;
475 		u16 sub_vendor_id;
476 		u16 sub_device_id;
477 		u8 reserved[24];
478 
479 	} __attribute__ ((packed)) pci;
480 
481 	/*
482 	 * Host interface information
483 	 */
484 	struct {
485 
486 		u8 PCIX:1;
487 		u8 PCIE:1;
488 		u8 iSCSI:1;
489 		u8 SAS_3G:1;
490 		u8 reserved_0:4;
491 		u8 reserved_1[6];
492 		u8 port_count;
493 		u64 port_addr[8];
494 
495 	} __attribute__ ((packed)) host_interface;
496 
497 	/*
498 	 * Device (backend) interface information
499 	 */
500 	struct {
501 
502 		u8 SPI:1;
503 		u8 SAS_3G:1;
504 		u8 SATA_1_5G:1;
505 		u8 SATA_3G:1;
506 		u8 reserved_0:4;
507 		u8 reserved_1[6];
508 		u8 port_count;
509 		u64 port_addr[8];
510 
511 	} __attribute__ ((packed)) device_interface;
512 
513 	/*
514 	 * List of components residing in flash. All str are null terminated
515 	 */
516 	u32 image_check_word;
517 	u32 image_component_count;
518 
519 	struct {
520 
521 		char name[8];
522 		char version[32];
523 		char build_date[16];
524 		char built_time[16];
525 
526 	} __attribute__ ((packed)) image_component[8];
527 
528 	/*
529 	 * List of flash components that have been flashed on the card, but
530 	 * are not in use, pending reset of the adapter. This list will be
531 	 * empty if a flash operation has not occurred. All stings are null
532 	 * terminated
533 	 */
534 	u32 pending_image_component_count;
535 
536 	struct {
537 
538 		char name[8];
539 		char version[32];
540 		char build_date[16];
541 		char build_time[16];
542 
543 	} __attribute__ ((packed)) pending_image_component[8];
544 
545 	u8 max_arms;
546 	u8 max_spans;
547 	u8 max_arrays;
548 	u8 max_lds;
549 
550 	char product_name[80];
551 	char serial_no[32];
552 
553 	/*
554 	 * Other physical/controller/operation information. Indicates the
555 	 * presence of the hardware
556 	 */
557 	struct {
558 
559 		u32 bbu:1;
560 		u32 alarm:1;
561 		u32 nvram:1;
562 		u32 uart:1;
563 		u32 reserved:28;
564 
565 	} __attribute__ ((packed)) hw_present;
566 
567 	u32 current_fw_time;
568 
569 	/*
570 	 * Maximum data transfer sizes
571 	 */
572 	u16 max_concurrent_cmds;
573 	u16 max_sge_count;
574 	u32 max_request_size;
575 
576 	/*
577 	 * Logical and physical device counts
578 	 */
579 	u16 ld_present_count;
580 	u16 ld_degraded_count;
581 	u16 ld_offline_count;
582 
583 	u16 pd_present_count;
584 	u16 pd_disk_present_count;
585 	u16 pd_disk_pred_failure_count;
586 	u16 pd_disk_failed_count;
587 
588 	/*
589 	 * Memory size information
590 	 */
591 	u16 nvram_size;
592 	u16 memory_size;
593 	u16 flash_size;
594 
595 	/*
596 	 * Error counters
597 	 */
598 	u16 mem_correctable_error_count;
599 	u16 mem_uncorrectable_error_count;
600 
601 	/*
602 	 * Cluster information
603 	 */
604 	u8 cluster_permitted;
605 	u8 cluster_active;
606 
607 	/*
608 	 * Additional max data transfer sizes
609 	 */
610 	u16 max_strips_per_io;
611 
612 	/*
613 	 * Controller capabilities structures
614 	 */
615 	struct {
616 
617 		u32 raid_level_0:1;
618 		u32 raid_level_1:1;
619 		u32 raid_level_5:1;
620 		u32 raid_level_1E:1;
621 		u32 raid_level_6:1;
622 		u32 reserved:27;
623 
624 	} __attribute__ ((packed)) raid_levels;
625 
626 	struct {
627 
628 		u32 rbld_rate:1;
629 		u32 cc_rate:1;
630 		u32 bgi_rate:1;
631 		u32 recon_rate:1;
632 		u32 patrol_rate:1;
633 		u32 alarm_control:1;
634 		u32 cluster_supported:1;
635 		u32 bbu:1;
636 		u32 spanning_allowed:1;
637 		u32 dedicated_hotspares:1;
638 		u32 revertible_hotspares:1;
639 		u32 foreign_config_import:1;
640 		u32 self_diagnostic:1;
641 		u32 mixed_redundancy_arr:1;
642 		u32 global_hot_spares:1;
643 		u32 reserved:17;
644 
645 	} __attribute__ ((packed)) adapter_operations;
646 
647 	struct {
648 
649 		u32 read_policy:1;
650 		u32 write_policy:1;
651 		u32 io_policy:1;
652 		u32 access_policy:1;
653 		u32 disk_cache_policy:1;
654 		u32 reserved:27;
655 
656 	} __attribute__ ((packed)) ld_operations;
657 
658 	struct {
659 
660 		u8 min;
661 		u8 max;
662 		u8 reserved[2];
663 
664 	} __attribute__ ((packed)) stripe_sz_ops;
665 
666 	struct {
667 
668 		u32 force_online:1;
669 		u32 force_offline:1;
670 		u32 force_rebuild:1;
671 		u32 reserved:29;
672 
673 	} __attribute__ ((packed)) pd_operations;
674 
675 	struct {
676 
677 		u32 ctrl_supports_sas:1;
678 		u32 ctrl_supports_sata:1;
679 		u32 allow_mix_in_encl:1;
680 		u32 allow_mix_in_ld:1;
681 		u32 allow_sata_in_cluster:1;
682 		u32 reserved:27;
683 
684 	} __attribute__ ((packed)) pd_mix_support;
685 
686 	/*
687 	 * Define ECC single-bit-error bucket information
688 	 */
689 	u8 ecc_bucket_count;
690 	u8 reserved_2[11];
691 
692 	/*
693 	 * Include the controller properties (changeable items)
694 	 */
695 	struct megasas_ctrl_prop properties;
696 
697 	/*
698 	 * Define FW pkg version (set in envt v'bles on OEM basis)
699 	 */
700 	char package_version[0x60];
701 
702 	u8 pad[0x800 - 0x6a0];
703 
704 } __packed;
705 
706 /*
707  * ===============================
708  * MegaRAID SAS driver definitions
709  * ===============================
710  */
711 #define MEGASAS_MAX_PD_CHANNELS			2
712 #define MEGASAS_MAX_LD_CHANNELS			2
713 #define MEGASAS_MAX_CHANNELS			(MEGASAS_MAX_PD_CHANNELS + \
714 						MEGASAS_MAX_LD_CHANNELS)
715 #define MEGASAS_MAX_DEV_PER_CHANNEL		128
716 #define MEGASAS_DEFAULT_INIT_ID			-1
717 #define MEGASAS_MAX_LUN				8
718 #define MEGASAS_MAX_LD				64
719 #define MEGASAS_DEFAULT_CMD_PER_LUN		128
720 #define MEGASAS_MAX_PD                          (MEGASAS_MAX_PD_CHANNELS * \
721 						MEGASAS_MAX_DEV_PER_CHANNEL)
722 #define MEGASAS_MAX_LD_IDS			(MEGASAS_MAX_LD_CHANNELS * \
723 						MEGASAS_MAX_DEV_PER_CHANNEL)
724 
725 #define MEGASAS_MAX_SECTORS                    (2*1024)
726 #define MEGASAS_MAX_SECTORS_IEEE		(2*128)
727 #define MEGASAS_DBG_LVL				1
728 
729 #define MEGASAS_FW_BUSY				1
730 
731 /* Frame Type */
732 #define IO_FRAME				0
733 #define PTHRU_FRAME				1
734 
735 /*
736  * When SCSI mid-layer calls driver's reset routine, driver waits for
737  * MEGASAS_RESET_WAIT_TIME seconds for all outstanding IO to complete. Note
738  * that the driver cannot _actually_ abort or reset pending commands. While
739  * it is waiting for the commands to complete, it prints a diagnostic message
740  * every MEGASAS_RESET_NOTICE_INTERVAL seconds
741  */
742 #define MEGASAS_RESET_WAIT_TIME			180
743 #define MEGASAS_INTERNAL_CMD_WAIT_TIME		180
744 #define	MEGASAS_RESET_NOTICE_INTERVAL		5
745 #define MEGASAS_IOCTL_CMD			0
746 #define MEGASAS_DEFAULT_CMD_TIMEOUT		90
747 
748 /*
749  * FW reports the maximum of number of commands that it can accept (maximum
750  * commands that can be outstanding) at any time. The driver must report a
751  * lower number to the mid layer because it can issue a few internal commands
752  * itself (E.g, AEN, abort cmd, IOCTLs etc). The number of commands it needs
753  * is shown below
754  */
755 #define MEGASAS_INT_CMDS			32
756 #define MEGASAS_SKINNY_INT_CMDS			5
757 
758 /*
759  * FW can accept both 32 and 64 bit SGLs. We want to allocate 32/64 bit
760  * SGLs based on the size of dma_addr_t
761  */
762 #define IS_DMA64				(sizeof(dma_addr_t) == 8)
763 
764 #define MFI_XSCALE_OMR0_CHANGE_INTERRUPT		0x00000001
765 
766 #define MFI_INTR_FLAG_REPLY_MESSAGE			0x00000001
767 #define MFI_INTR_FLAG_FIRMWARE_STATE_CHANGE		0x00000002
768 #define MFI_G2_OUTBOUND_DOORBELL_CHANGE_INTERRUPT	0x00000004
769 
770 #define MFI_OB_INTR_STATUS_MASK			0x00000002
771 #define MFI_POLL_TIMEOUT_SECS			60
772 #define MEGASAS_COMPLETION_TIMER_INTERVAL      (HZ/10)
773 
774 #define MFI_REPLY_1078_MESSAGE_INTERRUPT	0x80000000
775 #define MFI_REPLY_GEN2_MESSAGE_INTERRUPT	0x00000001
776 #define MFI_GEN2_ENABLE_INTERRUPT_MASK		(0x00000001 | 0x00000004)
777 #define MFI_REPLY_SKINNY_MESSAGE_INTERRUPT	0x40000000
778 #define MFI_SKINNY_ENABLE_INTERRUPT_MASK	(0x00000001)
779 
780 #define MFI_1068_PCSR_OFFSET			0x84
781 #define MFI_1068_FW_HANDSHAKE_OFFSET		0x64
782 #define MFI_1068_FW_READY			0xDDDD0000
783 /*
784 * register set for both 1068 and 1078 controllers
785 * structure extended for 1078 registers
786 */
787 
788 struct megasas_register_set {
789 	u32	doorbell;                       /*0000h*/
790 	u32	fusion_seq_offset;		/*0004h*/
791 	u32	fusion_host_diag;		/*0008h*/
792 	u32	reserved_01;			/*000Ch*/
793 
794 	u32 	inbound_msg_0;			/*0010h*/
795 	u32 	inbound_msg_1;			/*0014h*/
796 	u32 	outbound_msg_0;			/*0018h*/
797 	u32 	outbound_msg_1;			/*001Ch*/
798 
799 	u32 	inbound_doorbell;		/*0020h*/
800 	u32 	inbound_intr_status;		/*0024h*/
801 	u32 	inbound_intr_mask;		/*0028h*/
802 
803 	u32 	outbound_doorbell;		/*002Ch*/
804 	u32 	outbound_intr_status;		/*0030h*/
805 	u32 	outbound_intr_mask;		/*0034h*/
806 
807 	u32 	reserved_1[2];			/*0038h*/
808 
809 	u32 	inbound_queue_port;		/*0040h*/
810 	u32 	outbound_queue_port;		/*0044h*/
811 
812 	u32	reserved_2[9];			/*0048h*/
813 	u32	reply_post_host_index;		/*006Ch*/
814 	u32	reserved_2_2[12];		/*0070h*/
815 
816 	u32 	outbound_doorbell_clear;	/*00A0h*/
817 
818 	u32 	reserved_3[3];			/*00A4h*/
819 
820 	u32 	outbound_scratch_pad ;		/*00B0h*/
821 	u32	outbound_scratch_pad_2;         /*00B4h*/
822 
823 	u32	reserved_4[2];			/*00B8h*/
824 
825 	u32 	inbound_low_queue_port ;	/*00C0h*/
826 
827 	u32 	inbound_high_queue_port ;	/*00C4h*/
828 
829 	u32 	reserved_5;			/*00C8h*/
830 	u32	res_6[11];			/*CCh*/
831 	u32	host_diag;
832 	u32	seq_offset;
833 	u32 	index_registers[807];		/*00CCh*/
834 } __attribute__ ((packed));
835 
836 struct megasas_sge32 {
837 
838 	u32 phys_addr;
839 	u32 length;
840 
841 } __attribute__ ((packed));
842 
843 struct megasas_sge64 {
844 
845 	u64 phys_addr;
846 	u32 length;
847 
848 } __attribute__ ((packed));
849 
850 struct megasas_sge_skinny {
851 	u64 phys_addr;
852 	u32 length;
853 	u32 flag;
854 } __packed;
855 
856 union megasas_sgl {
857 
858 	struct megasas_sge32 sge32[1];
859 	struct megasas_sge64 sge64[1];
860 	struct megasas_sge_skinny sge_skinny[1];
861 
862 } __attribute__ ((packed));
863 
864 struct megasas_header {
865 
866 	u8 cmd;			/*00h */
867 	u8 sense_len;		/*01h */
868 	u8 cmd_status;		/*02h */
869 	u8 scsi_status;		/*03h */
870 
871 	u8 target_id;		/*04h */
872 	u8 lun;			/*05h */
873 	u8 cdb_len;		/*06h */
874 	u8 sge_count;		/*07h */
875 
876 	u32 context;		/*08h */
877 	u32 pad_0;		/*0Ch */
878 
879 	u16 flags;		/*10h */
880 	u16 timeout;		/*12h */
881 	u32 data_xferlen;	/*14h */
882 
883 } __attribute__ ((packed));
884 
885 union megasas_sgl_frame {
886 
887 	struct megasas_sge32 sge32[8];
888 	struct megasas_sge64 sge64[5];
889 
890 } __attribute__ ((packed));
891 
892 struct megasas_init_frame {
893 
894 	u8 cmd;			/*00h */
895 	u8 reserved_0;		/*01h */
896 	u8 cmd_status;		/*02h */
897 
898 	u8 reserved_1;		/*03h */
899 	u32 reserved_2;		/*04h */
900 
901 	u32 context;		/*08h */
902 	u32 pad_0;		/*0Ch */
903 
904 	u16 flags;		/*10h */
905 	u16 reserved_3;		/*12h */
906 	u32 data_xfer_len;	/*14h */
907 
908 	u32 queue_info_new_phys_addr_lo;	/*18h */
909 	u32 queue_info_new_phys_addr_hi;	/*1Ch */
910 	u32 queue_info_old_phys_addr_lo;	/*20h */
911 	u32 queue_info_old_phys_addr_hi;	/*24h */
912 
913 	u32 reserved_4[6];	/*28h */
914 
915 } __attribute__ ((packed));
916 
917 struct megasas_init_queue_info {
918 
919 	u32 init_flags;		/*00h */
920 	u32 reply_queue_entries;	/*04h */
921 
922 	u32 reply_queue_start_phys_addr_lo;	/*08h */
923 	u32 reply_queue_start_phys_addr_hi;	/*0Ch */
924 	u32 producer_index_phys_addr_lo;	/*10h */
925 	u32 producer_index_phys_addr_hi;	/*14h */
926 	u32 consumer_index_phys_addr_lo;	/*18h */
927 	u32 consumer_index_phys_addr_hi;	/*1Ch */
928 
929 } __attribute__ ((packed));
930 
931 struct megasas_io_frame {
932 
933 	u8 cmd;			/*00h */
934 	u8 sense_len;		/*01h */
935 	u8 cmd_status;		/*02h */
936 	u8 scsi_status;		/*03h */
937 
938 	u8 target_id;		/*04h */
939 	u8 access_byte;		/*05h */
940 	u8 reserved_0;		/*06h */
941 	u8 sge_count;		/*07h */
942 
943 	u32 context;		/*08h */
944 	u32 pad_0;		/*0Ch */
945 
946 	u16 flags;		/*10h */
947 	u16 timeout;		/*12h */
948 	u32 lba_count;		/*14h */
949 
950 	u32 sense_buf_phys_addr_lo;	/*18h */
951 	u32 sense_buf_phys_addr_hi;	/*1Ch */
952 
953 	u32 start_lba_lo;	/*20h */
954 	u32 start_lba_hi;	/*24h */
955 
956 	union megasas_sgl sgl;	/*28h */
957 
958 } __attribute__ ((packed));
959 
960 struct megasas_pthru_frame {
961 
962 	u8 cmd;			/*00h */
963 	u8 sense_len;		/*01h */
964 	u8 cmd_status;		/*02h */
965 	u8 scsi_status;		/*03h */
966 
967 	u8 target_id;		/*04h */
968 	u8 lun;			/*05h */
969 	u8 cdb_len;		/*06h */
970 	u8 sge_count;		/*07h */
971 
972 	u32 context;		/*08h */
973 	u32 pad_0;		/*0Ch */
974 
975 	u16 flags;		/*10h */
976 	u16 timeout;		/*12h */
977 	u32 data_xfer_len;	/*14h */
978 
979 	u32 sense_buf_phys_addr_lo;	/*18h */
980 	u32 sense_buf_phys_addr_hi;	/*1Ch */
981 
982 	u8 cdb[16];		/*20h */
983 	union megasas_sgl sgl;	/*30h */
984 
985 } __attribute__ ((packed));
986 
987 struct megasas_dcmd_frame {
988 
989 	u8 cmd;			/*00h */
990 	u8 reserved_0;		/*01h */
991 	u8 cmd_status;		/*02h */
992 	u8 reserved_1[4];	/*03h */
993 	u8 sge_count;		/*07h */
994 
995 	u32 context;		/*08h */
996 	u32 pad_0;		/*0Ch */
997 
998 	u16 flags;		/*10h */
999 	u16 timeout;		/*12h */
1000 
1001 	u32 data_xfer_len;	/*14h */
1002 	u32 opcode;		/*18h */
1003 
1004 	union {			/*1Ch */
1005 		u8 b[12];
1006 		u16 s[6];
1007 		u32 w[3];
1008 	} mbox;
1009 
1010 	union megasas_sgl sgl;	/*28h */
1011 
1012 } __attribute__ ((packed));
1013 
1014 struct megasas_abort_frame {
1015 
1016 	u8 cmd;			/*00h */
1017 	u8 reserved_0;		/*01h */
1018 	u8 cmd_status;		/*02h */
1019 
1020 	u8 reserved_1;		/*03h */
1021 	u32 reserved_2;		/*04h */
1022 
1023 	u32 context;		/*08h */
1024 	u32 pad_0;		/*0Ch */
1025 
1026 	u16 flags;		/*10h */
1027 	u16 reserved_3;		/*12h */
1028 	u32 reserved_4;		/*14h */
1029 
1030 	u32 abort_context;	/*18h */
1031 	u32 pad_1;		/*1Ch */
1032 
1033 	u32 abort_mfi_phys_addr_lo;	/*20h */
1034 	u32 abort_mfi_phys_addr_hi;	/*24h */
1035 
1036 	u32 reserved_5[6];	/*28h */
1037 
1038 } __attribute__ ((packed));
1039 
1040 struct megasas_smp_frame {
1041 
1042 	u8 cmd;			/*00h */
1043 	u8 reserved_1;		/*01h */
1044 	u8 cmd_status;		/*02h */
1045 	u8 connection_status;	/*03h */
1046 
1047 	u8 reserved_2[3];	/*04h */
1048 	u8 sge_count;		/*07h */
1049 
1050 	u32 context;		/*08h */
1051 	u32 pad_0;		/*0Ch */
1052 
1053 	u16 flags;		/*10h */
1054 	u16 timeout;		/*12h */
1055 
1056 	u32 data_xfer_len;	/*14h */
1057 	u64 sas_addr;		/*18h */
1058 
1059 	union {
1060 		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: req */
1061 		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: req */
1062 	} sgl;
1063 
1064 } __attribute__ ((packed));
1065 
1066 struct megasas_stp_frame {
1067 
1068 	u8 cmd;			/*00h */
1069 	u8 reserved_1;		/*01h */
1070 	u8 cmd_status;		/*02h */
1071 	u8 reserved_2;		/*03h */
1072 
1073 	u8 target_id;		/*04h */
1074 	u8 reserved_3[2];	/*05h */
1075 	u8 sge_count;		/*07h */
1076 
1077 	u32 context;		/*08h */
1078 	u32 pad_0;		/*0Ch */
1079 
1080 	u16 flags;		/*10h */
1081 	u16 timeout;		/*12h */
1082 
1083 	u32 data_xfer_len;	/*14h */
1084 
1085 	u16 fis[10];		/*18h */
1086 	u32 stp_flags;
1087 
1088 	union {
1089 		struct megasas_sge32 sge32[2];	/* [0]: resp [1]: data */
1090 		struct megasas_sge64 sge64[2];	/* [0]: resp [1]: data */
1091 	} sgl;
1092 
1093 } __attribute__ ((packed));
1094 
1095 union megasas_frame {
1096 
1097 	struct megasas_header hdr;
1098 	struct megasas_init_frame init;
1099 	struct megasas_io_frame io;
1100 	struct megasas_pthru_frame pthru;
1101 	struct megasas_dcmd_frame dcmd;
1102 	struct megasas_abort_frame abort;
1103 	struct megasas_smp_frame smp;
1104 	struct megasas_stp_frame stp;
1105 
1106 	u8 raw_bytes[64];
1107 };
1108 
1109 struct megasas_cmd;
1110 
1111 union megasas_evt_class_locale {
1112 
1113 	struct {
1114 		u16 locale;
1115 		u8 reserved;
1116 		s8 class;
1117 	} __attribute__ ((packed)) members;
1118 
1119 	u32 word;
1120 
1121 } __attribute__ ((packed));
1122 
1123 struct megasas_evt_log_info {
1124 	u32 newest_seq_num;
1125 	u32 oldest_seq_num;
1126 	u32 clear_seq_num;
1127 	u32 shutdown_seq_num;
1128 	u32 boot_seq_num;
1129 
1130 } __attribute__ ((packed));
1131 
1132 struct megasas_progress {
1133 
1134 	u16 progress;
1135 	u16 elapsed_seconds;
1136 
1137 } __attribute__ ((packed));
1138 
1139 struct megasas_evtarg_ld {
1140 
1141 	u16 target_id;
1142 	u8 ld_index;
1143 	u8 reserved;
1144 
1145 } __attribute__ ((packed));
1146 
1147 struct megasas_evtarg_pd {
1148 	u16 device_id;
1149 	u8 encl_index;
1150 	u8 slot_number;
1151 
1152 } __attribute__ ((packed));
1153 
1154 struct megasas_evt_detail {
1155 
1156 	u32 seq_num;
1157 	u32 time_stamp;
1158 	u32 code;
1159 	union megasas_evt_class_locale cl;
1160 	u8 arg_type;
1161 	u8 reserved1[15];
1162 
1163 	union {
1164 		struct {
1165 			struct megasas_evtarg_pd pd;
1166 			u8 cdb_length;
1167 			u8 sense_length;
1168 			u8 reserved[2];
1169 			u8 cdb[16];
1170 			u8 sense[64];
1171 		} __attribute__ ((packed)) cdbSense;
1172 
1173 		struct megasas_evtarg_ld ld;
1174 
1175 		struct {
1176 			struct megasas_evtarg_ld ld;
1177 			u64 count;
1178 		} __attribute__ ((packed)) ld_count;
1179 
1180 		struct {
1181 			u64 lba;
1182 			struct megasas_evtarg_ld ld;
1183 		} __attribute__ ((packed)) ld_lba;
1184 
1185 		struct {
1186 			struct megasas_evtarg_ld ld;
1187 			u32 prevOwner;
1188 			u32 newOwner;
1189 		} __attribute__ ((packed)) ld_owner;
1190 
1191 		struct {
1192 			u64 ld_lba;
1193 			u64 pd_lba;
1194 			struct megasas_evtarg_ld ld;
1195 			struct megasas_evtarg_pd pd;
1196 		} __attribute__ ((packed)) ld_lba_pd_lba;
1197 
1198 		struct {
1199 			struct megasas_evtarg_ld ld;
1200 			struct megasas_progress prog;
1201 		} __attribute__ ((packed)) ld_prog;
1202 
1203 		struct {
1204 			struct megasas_evtarg_ld ld;
1205 			u32 prev_state;
1206 			u32 new_state;
1207 		} __attribute__ ((packed)) ld_state;
1208 
1209 		struct {
1210 			u64 strip;
1211 			struct megasas_evtarg_ld ld;
1212 		} __attribute__ ((packed)) ld_strip;
1213 
1214 		struct megasas_evtarg_pd pd;
1215 
1216 		struct {
1217 			struct megasas_evtarg_pd pd;
1218 			u32 err;
1219 		} __attribute__ ((packed)) pd_err;
1220 
1221 		struct {
1222 			u64 lba;
1223 			struct megasas_evtarg_pd pd;
1224 		} __attribute__ ((packed)) pd_lba;
1225 
1226 		struct {
1227 			u64 lba;
1228 			struct megasas_evtarg_pd pd;
1229 			struct megasas_evtarg_ld ld;
1230 		} __attribute__ ((packed)) pd_lba_ld;
1231 
1232 		struct {
1233 			struct megasas_evtarg_pd pd;
1234 			struct megasas_progress prog;
1235 		} __attribute__ ((packed)) pd_prog;
1236 
1237 		struct {
1238 			struct megasas_evtarg_pd pd;
1239 			u32 prevState;
1240 			u32 newState;
1241 		} __attribute__ ((packed)) pd_state;
1242 
1243 		struct {
1244 			u16 vendorId;
1245 			u16 deviceId;
1246 			u16 subVendorId;
1247 			u16 subDeviceId;
1248 		} __attribute__ ((packed)) pci;
1249 
1250 		u32 rate;
1251 		char str[96];
1252 
1253 		struct {
1254 			u32 rtc;
1255 			u32 elapsedSeconds;
1256 		} __attribute__ ((packed)) time;
1257 
1258 		struct {
1259 			u32 ecar;
1260 			u32 elog;
1261 			char str[64];
1262 		} __attribute__ ((packed)) ecc;
1263 
1264 		u8 b[96];
1265 		u16 s[48];
1266 		u32 w[24];
1267 		u64 d[12];
1268 	} args;
1269 
1270 	char description[128];
1271 
1272 } __attribute__ ((packed));
1273 
1274 struct megasas_aen_event {
1275 	struct work_struct hotplug_work;
1276 	struct megasas_instance *instance;
1277 };
1278 
1279 struct megasas_instance {
1280 
1281 	u32 *producer;
1282 	dma_addr_t producer_h;
1283 	u32 *consumer;
1284 	dma_addr_t consumer_h;
1285 
1286 	u32 *reply_queue;
1287 	dma_addr_t reply_queue_h;
1288 
1289 	unsigned long base_addr;
1290 	struct megasas_register_set __iomem *reg_set;
1291 
1292 	struct megasas_pd_list          pd_list[MEGASAS_MAX_PD];
1293 	u8     ld_ids[MEGASAS_MAX_LD_IDS];
1294 	s8 init_id;
1295 
1296 	u16 max_num_sge;
1297 	u16 max_fw_cmds;
1298 	/* For Fusion its num IOCTL cmds, for others MFI based its
1299 	   max_fw_cmds */
1300 	u16 max_mfi_cmds;
1301 	u32 max_sectors_per_req;
1302 	struct megasas_aen_event *ev;
1303 
1304 	struct megasas_cmd **cmd_list;
1305 	struct list_head cmd_pool;
1306 	/* used to sync fire the cmd to fw */
1307 	spinlock_t cmd_pool_lock;
1308 	/* used to sync fire the cmd to fw */
1309 	spinlock_t hba_lock;
1310 	/* used to synch producer, consumer ptrs in dpc */
1311 	spinlock_t completion_lock;
1312 	struct dma_pool *frame_dma_pool;
1313 	struct dma_pool *sense_dma_pool;
1314 
1315 	struct megasas_evt_detail *evt_detail;
1316 	dma_addr_t evt_detail_h;
1317 	struct megasas_cmd *aen_cmd;
1318 	struct mutex aen_mutex;
1319 	struct semaphore ioctl_sem;
1320 
1321 	struct Scsi_Host *host;
1322 
1323 	wait_queue_head_t int_cmd_wait_q;
1324 	wait_queue_head_t abort_cmd_wait_q;
1325 
1326 	struct pci_dev *pdev;
1327 	u32 unique_id;
1328 	u32 fw_support_ieee;
1329 
1330 	atomic_t fw_outstanding;
1331 	atomic_t fw_reset_no_pci_access;
1332 
1333 	struct megasas_instance_template *instancet;
1334 	struct tasklet_struct isr_tasklet;
1335 	struct work_struct work_init;
1336 
1337 	u8 flag;
1338 	u8 unload;
1339 	u8 flag_ieee;
1340 	u8 issuepend_done;
1341 	u8 disableOnlineCtrlReset;
1342 	u8 adprecovery;
1343 	unsigned long last_time;
1344 	u32 mfiStatus;
1345 	u32 last_seq_num;
1346 
1347 	struct timer_list io_completion_timer;
1348 	struct list_head internal_reset_pending_q;
1349 
1350 	/* Ptr to hba specific information */
1351 	void *ctrl_context;
1352 	u8	msi_flag;
1353 	struct msix_entry msixentry;
1354 	u64 map_id;
1355 	struct megasas_cmd *map_update_cmd;
1356 	unsigned long bar;
1357 	long reset_flags;
1358 	struct mutex reset_mutex;
1359 };
1360 
1361 enum {
1362 	MEGASAS_HBA_OPERATIONAL			= 0,
1363 	MEGASAS_ADPRESET_SM_INFAULT		= 1,
1364 	MEGASAS_ADPRESET_SM_FW_RESET_SUCCESS	= 2,
1365 	MEGASAS_ADPRESET_SM_OPERATIONAL		= 3,
1366 	MEGASAS_HW_CRITICAL_ERROR		= 4,
1367 	MEGASAS_ADPRESET_INPROG_SIGN		= 0xDEADDEAD,
1368 };
1369 
1370 struct megasas_instance_template {
1371 	void (*fire_cmd)(struct megasas_instance *, dma_addr_t, \
1372 		u32, struct megasas_register_set __iomem *);
1373 
1374 	void (*enable_intr)(struct megasas_register_set __iomem *) ;
1375 	void (*disable_intr)(struct megasas_register_set __iomem *);
1376 
1377 	int (*clear_intr)(struct megasas_register_set __iomem *);
1378 
1379 	u32 (*read_fw_status_reg)(struct megasas_register_set __iomem *);
1380 	int (*adp_reset)(struct megasas_instance *, \
1381 		struct megasas_register_set __iomem *);
1382 	int (*check_reset)(struct megasas_instance *, \
1383 		struct megasas_register_set __iomem *);
1384 	irqreturn_t (*service_isr)(int irq, void *devp);
1385 	void (*tasklet)(unsigned long);
1386 	u32 (*init_adapter)(struct megasas_instance *);
1387 	u32 (*build_and_issue_cmd) (struct megasas_instance *,
1388 				    struct scsi_cmnd *);
1389 	void (*issue_dcmd) (struct megasas_instance *instance,
1390 			    struct megasas_cmd *cmd);
1391 };
1392 
1393 #define MEGASAS_IS_LOGICAL(scp)						\
1394 	(scp->device->channel < MEGASAS_MAX_PD_CHANNELS) ? 0 : 1
1395 
1396 #define MEGASAS_DEV_INDEX(inst, scp)					\
1397 	((scp->device->channel % 2) * MEGASAS_MAX_DEV_PER_CHANNEL) + 	\
1398 	scp->device->id
1399 
1400 struct megasas_cmd {
1401 
1402 	union megasas_frame *frame;
1403 	dma_addr_t frame_phys_addr;
1404 	u8 *sense;
1405 	dma_addr_t sense_phys_addr;
1406 
1407 	u32 index;
1408 	u8 sync_cmd;
1409 	u8 cmd_status;
1410 	u8 abort_aen;
1411 	u8 retry_for_fw_reset;
1412 
1413 
1414 	struct list_head list;
1415 	struct scsi_cmnd *scmd;
1416 	struct megasas_instance *instance;
1417 	union {
1418 		struct {
1419 			u16 smid;
1420 			u16 resvd;
1421 		} context;
1422 		u32 frame_count;
1423 	};
1424 };
1425 
1426 #define MAX_MGMT_ADAPTERS		1024
1427 #define MAX_IOCTL_SGE			16
1428 
1429 struct megasas_iocpacket {
1430 
1431 	u16 host_no;
1432 	u16 __pad1;
1433 	u32 sgl_off;
1434 	u32 sge_count;
1435 	u32 sense_off;
1436 	u32 sense_len;
1437 	union {
1438 		u8 raw[128];
1439 		struct megasas_header hdr;
1440 	} frame;
1441 
1442 	struct iovec sgl[MAX_IOCTL_SGE];
1443 
1444 } __attribute__ ((packed));
1445 
1446 struct megasas_aen {
1447 	u16 host_no;
1448 	u16 __pad1;
1449 	u32 seq_num;
1450 	u32 class_locale_word;
1451 } __attribute__ ((packed));
1452 
1453 #ifdef CONFIG_COMPAT
1454 struct compat_megasas_iocpacket {
1455 	u16 host_no;
1456 	u16 __pad1;
1457 	u32 sgl_off;
1458 	u32 sge_count;
1459 	u32 sense_off;
1460 	u32 sense_len;
1461 	union {
1462 		u8 raw[128];
1463 		struct megasas_header hdr;
1464 	} frame;
1465 	struct compat_iovec sgl[MAX_IOCTL_SGE];
1466 } __attribute__ ((packed));
1467 
1468 #define MEGASAS_IOC_FIRMWARE32	_IOWR('M', 1, struct compat_megasas_iocpacket)
1469 #endif
1470 
1471 #define MEGASAS_IOC_FIRMWARE	_IOWR('M', 1, struct megasas_iocpacket)
1472 #define MEGASAS_IOC_GET_AEN	_IOW('M', 3, struct megasas_aen)
1473 
1474 struct megasas_mgmt_info {
1475 
1476 	u16 count;
1477 	struct megasas_instance *instance[MAX_MGMT_ADAPTERS];
1478 	int max_index;
1479 };
1480 
1481 #define msi_control_reg(base) (base + PCI_MSI_FLAGS)
1482 #define PCI_MSIX_FLAGS_ENABLE (1 << 15)
1483 
1484 #endif				/*LSI_MEGARAID_SAS_H */
1485