xref: /openbmc/linux/drivers/scsi/hpsa_cmd.h (revision 3932b9ca)
1 /*
2  *    Disk Array driver for HP Smart Array SAS controllers
3  *    Copyright 2000, 2014 Hewlett-Packard Development Company, L.P.
4  *
5  *    This program is free software; you can redistribute it and/or modify
6  *    it under the terms of the GNU General Public License as published by
7  *    the Free Software Foundation; version 2 of the License.
8  *
9  *    This program is distributed in the hope that it will be useful,
10  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
11  *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
12  *    NON INFRINGEMENT.  See the GNU General Public License for more details.
13  *
14  *    You should have received a copy of the GNU General Public License
15  *    along with this program; if not, write to the Free Software
16  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17  *
18  *    Questions/Comments/Bugfixes to iss_storagedev@hp.com
19  *
20  */
21 #ifndef HPSA_CMD_H
22 #define HPSA_CMD_H
23 
24 /* general boundary defintions */
25 #define SENSEINFOBYTES          32 /* may vary between hbas */
26 #define SG_ENTRIES_IN_CMD	32 /* Max SG entries excluding chain blocks */
27 #define HPSA_SG_CHAIN		0x80000000
28 #define HPSA_SG_LAST		0x40000000
29 #define MAXREPLYQS              256
30 
31 /* Command Status value */
32 #define CMD_SUCCESS             0x0000
33 #define CMD_TARGET_STATUS       0x0001
34 #define CMD_DATA_UNDERRUN       0x0002
35 #define CMD_DATA_OVERRUN        0x0003
36 #define CMD_INVALID             0x0004
37 #define CMD_PROTOCOL_ERR        0x0005
38 #define CMD_HARDWARE_ERR        0x0006
39 #define CMD_CONNECTION_LOST     0x0007
40 #define CMD_ABORTED             0x0008
41 #define CMD_ABORT_FAILED        0x0009
42 #define CMD_UNSOLICITED_ABORT   0x000A
43 #define CMD_TIMEOUT             0x000B
44 #define CMD_UNABORTABLE		0x000C
45 #define CMD_IOACCEL_DISABLED	0x000E
46 
47 
48 /* Unit Attentions ASC's as defined for the MSA2012sa */
49 #define POWER_OR_RESET			0x29
50 #define STATE_CHANGED			0x2a
51 #define UNIT_ATTENTION_CLEARED		0x2f
52 #define LUN_FAILED			0x3e
53 #define REPORT_LUNS_CHANGED		0x3f
54 
55 /* Unit Attentions ASCQ's as defined for the MSA2012sa */
56 
57 	/* These ASCQ's defined for ASC = POWER_OR_RESET */
58 #define POWER_ON_RESET			0x00
59 #define POWER_ON_REBOOT			0x01
60 #define SCSI_BUS_RESET			0x02
61 #define MSA_TARGET_RESET		0x03
62 #define CONTROLLER_FAILOVER		0x04
63 #define TRANSCEIVER_SE			0x05
64 #define TRANSCEIVER_LVD			0x06
65 
66 	/* These ASCQ's defined for ASC = STATE_CHANGED */
67 #define RESERVATION_PREEMPTED		0x03
68 #define ASYM_ACCESS_CHANGED		0x06
69 #define LUN_CAPACITY_CHANGED		0x09
70 
71 /* transfer direction */
72 #define XFER_NONE               0x00
73 #define XFER_WRITE              0x01
74 #define XFER_READ               0x02
75 #define XFER_RSVD               0x03
76 
77 /* task attribute */
78 #define ATTR_UNTAGGED           0x00
79 #define ATTR_SIMPLE             0x04
80 #define ATTR_HEADOFQUEUE        0x05
81 #define ATTR_ORDERED            0x06
82 #define ATTR_ACA                0x07
83 
84 /* cdb type */
85 #define TYPE_CMD		0x00
86 #define TYPE_MSG		0x01
87 #define TYPE_IOACCEL2_CMD	0x81 /* 0x81 is not used by hardware */
88 
89 /* Message Types  */
90 #define HPSA_TASK_MANAGEMENT    0x00
91 #define HPSA_RESET              0x01
92 #define HPSA_SCAN               0x02
93 #define HPSA_NOOP               0x03
94 
95 #define HPSA_CTLR_RESET_TYPE    0x00
96 #define HPSA_BUS_RESET_TYPE     0x01
97 #define HPSA_TARGET_RESET_TYPE  0x03
98 #define HPSA_LUN_RESET_TYPE     0x04
99 #define HPSA_NEXUS_RESET_TYPE   0x05
100 
101 /* Task Management Functions */
102 #define HPSA_TMF_ABORT_TASK     0x00
103 #define HPSA_TMF_ABORT_TASK_SET 0x01
104 #define HPSA_TMF_CLEAR_ACA      0x02
105 #define HPSA_TMF_CLEAR_TASK_SET 0x03
106 #define HPSA_TMF_QUERY_TASK     0x04
107 #define HPSA_TMF_QUERY_TASK_SET 0x05
108 #define HPSA_TMF_QUERY_ASYNCEVENT 0x06
109 
110 
111 
112 /* config space register offsets */
113 #define CFG_VENDORID            0x00
114 #define CFG_DEVICEID            0x02
115 #define CFG_I2OBAR              0x10
116 #define CFG_MEM1BAR             0x14
117 
118 /* i2o space register offsets */
119 #define I2O_IBDB_SET            0x20
120 #define I2O_IBDB_CLEAR          0x70
121 #define I2O_INT_STATUS          0x30
122 #define I2O_INT_MASK            0x34
123 #define I2O_IBPOST_Q            0x40
124 #define I2O_OBPOST_Q            0x44
125 #define I2O_DMA1_CFG		0x214
126 
127 /* Configuration Table */
128 #define CFGTBL_ChangeReq        0x00000001l
129 #define CFGTBL_AccCmds          0x00000001l
130 #define DOORBELL_CTLR_RESET	0x00000004l
131 #define DOORBELL_CTLR_RESET2	0x00000020l
132 #define DOORBELL_CLEAR_EVENTS	0x00000040l
133 
134 #define CFGTBL_Trans_Simple     0x00000002l
135 #define CFGTBL_Trans_Performant 0x00000004l
136 #define CFGTBL_Trans_io_accel1	0x00000080l
137 #define CFGTBL_Trans_io_accel2	0x00000100l
138 #define CFGTBL_Trans_use_short_tags 0x20000000l
139 #define CFGTBL_Trans_enable_directed_msix (1 << 30)
140 
141 #define CFGTBL_BusType_Ultra2   0x00000001l
142 #define CFGTBL_BusType_Ultra3   0x00000002l
143 #define CFGTBL_BusType_Fibre1G  0x00000100l
144 #define CFGTBL_BusType_Fibre2G  0x00000200l
145 
146 /* VPD Inquiry types */
147 #define HPSA_VPD_SUPPORTED_PAGES        0x00
148 #define HPSA_VPD_LV_DEVICE_GEOMETRY     0xC1
149 #define HPSA_VPD_LV_IOACCEL_STATUS      0xC2
150 #define HPSA_VPD_LV_STATUS		0xC3
151 #define HPSA_VPD_HEADER_SZ              4
152 
153 /* Logical volume states */
154 #define HPSA_VPD_LV_STATUS_UNSUPPORTED			0xff
155 #define HPSA_LV_OK                                      0x0
156 #define HPSA_LV_UNDERGOING_ERASE			0x0F
157 #define HPSA_LV_UNDERGOING_RPI				0x12
158 #define HPSA_LV_PENDING_RPI				0x13
159 #define HPSA_LV_ENCRYPTED_NO_KEY			0x14
160 #define HPSA_LV_PLAINTEXT_IN_ENCRYPT_ONLY_CONTROLLER	0x15
161 #define HPSA_LV_UNDERGOING_ENCRYPTION			0x16
162 #define HPSA_LV_UNDERGOING_ENCRYPTION_REKEYING		0x17
163 #define HPSA_LV_ENCRYPTED_IN_NON_ENCRYPTED_CONTROLLER	0x18
164 #define HPSA_LV_PENDING_ENCRYPTION			0x19
165 #define HPSA_LV_PENDING_ENCRYPTION_REKEYING		0x1A
166 
167 struct vals32 {
168 	u32   lower;
169 	u32   upper;
170 };
171 
172 union u64bit {
173 	struct vals32 val32;
174 	u64 val;
175 };
176 
177 /* FIXME this is a per controller value (barf!) */
178 #define HPSA_MAX_LUN 1024
179 #define HPSA_MAX_PHYS_LUN 1024
180 #define MAX_EXT_TARGETS 32
181 #define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
182 	MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */
183 
184 /* SCSI-3 Commands */
185 #pragma pack(1)
186 
187 #define HPSA_INQUIRY 0x12
188 struct InquiryData {
189 	u8 data_byte[36];
190 };
191 
192 #define HPSA_REPORT_LOG 0xc2    /* Report Logical LUNs */
193 #define HPSA_REPORT_PHYS 0xc3   /* Report Physical LUNs */
194 #define HPSA_REPORT_PHYS_EXTENDED 0x02
195 #define HPSA_CISS_READ	0xc0	/* CISS Read */
196 #define HPSA_GET_RAID_MAP 0xc8	/* CISS Get RAID Layout Map */
197 
198 #define RAID_MAP_MAX_ENTRIES   256
199 
200 struct raid_map_disk_data {
201 	u32   ioaccel_handle;         /**< Handle to access this disk via the
202 					*  I/O accelerator */
203 	u8    xor_mult[2];            /**< XOR multipliers for this position,
204 					*  valid for data disks only */
205 	u8    reserved[2];
206 };
207 
208 struct raid_map_data {
209 	u32   structure_size;		/* Size of entire structure in bytes */
210 	u32   volume_blk_size;		/* bytes / block in the volume */
211 	u64   volume_blk_cnt;		/* logical blocks on the volume */
212 	u8    phys_blk_shift;		/* Shift factor to convert between
213 					 * units of logical blocks and physical
214 					 * disk blocks */
215 	u8    parity_rotation_shift;	/* Shift factor to convert between units
216 					 * of logical stripes and physical
217 					 * stripes */
218 	u16   strip_size;		/* blocks used on each disk / stripe */
219 	u64   disk_starting_blk;	/* First disk block used in volume */
220 	u64   disk_blk_cnt;		/* disk blocks used by volume / disk */
221 	u16   data_disks_per_row;	/* data disk entries / row in the map */
222 	u16   metadata_disks_per_row;	/* mirror/parity disk entries / row
223 					 * in the map */
224 	u16   row_cnt;			/* rows in each layout map */
225 	u16   layout_map_count;		/* layout maps (1 map per mirror/parity
226 					 * group) */
227 	u16   flags;			/* Bit 0 set if encryption enabled */
228 #define RAID_MAP_FLAG_ENCRYPT_ON  0x01
229 	u16   dekindex;			/* Data encryption key index. */
230 	u8    reserved[16];
231 	struct raid_map_disk_data data[RAID_MAP_MAX_ENTRIES];
232 };
233 
234 struct ReportLUNdata {
235 	u8 LUNListLength[4];
236 	u8 extended_response_flag;
237 	u8 reserved[3];
238 	u8 LUN[HPSA_MAX_LUN][8];
239 };
240 
241 struct ext_report_lun_entry {
242 	u8 lunid[8];
243 	u8 wwid[8];
244 	u8 device_type;
245 	u8 device_flags;
246 	u8 lun_count; /* multi-lun device, how many luns */
247 	u8 redundant_paths;
248 	u32 ioaccel_handle; /* ioaccel1 only uses lower 16 bits */
249 };
250 
251 struct ReportExtendedLUNdata {
252 	u8 LUNListLength[4];
253 	u8 extended_response_flag;
254 	u8 reserved[3];
255 	struct ext_report_lun_entry LUN[HPSA_MAX_LUN];
256 };
257 
258 struct SenseSubsystem_info {
259 	u8 reserved[36];
260 	u8 portname[8];
261 	u8 reserved1[1108];
262 };
263 
264 /* BMIC commands */
265 #define BMIC_READ 0x26
266 #define BMIC_WRITE 0x27
267 #define BMIC_CACHE_FLUSH 0xc2
268 #define HPSA_CACHE_FLUSH 0x01	/* C2 was already being used by HPSA */
269 #define BMIC_FLASH_FIRMWARE 0xF7
270 #define BMIC_SENSE_CONTROLLER_PARAMETERS 0x64
271 
272 /* Command List Structure */
273 union SCSI3Addr {
274 	struct {
275 		u8 Dev;
276 		u8 Bus:6;
277 		u8 Mode:2;        /* b00 */
278 	} PeripDev;
279 	struct {
280 		u8 DevLSB;
281 		u8 DevMSB:6;
282 		u8 Mode:2;        /* b01 */
283 	} LogDev;
284 	struct {
285 		u8 Dev:5;
286 		u8 Bus:3;
287 		u8 Targ:6;
288 		u8 Mode:2;        /* b10 */
289 	} LogUnit;
290 };
291 
292 struct PhysDevAddr {
293 	u32             TargetId:24;
294 	u32             Bus:6;
295 	u32             Mode:2;
296 	/* 2 level target device addr */
297 	union SCSI3Addr  Target[2];
298 };
299 
300 struct LogDevAddr {
301 	u32            VolId:30;
302 	u32            Mode:2;
303 	u8             reserved[4];
304 };
305 
306 union LUNAddr {
307 	u8               LunAddrBytes[8];
308 	union SCSI3Addr    SCSI3Lun[4];
309 	struct PhysDevAddr PhysDev;
310 	struct LogDevAddr  LogDev;
311 };
312 
313 struct CommandListHeader {
314 	u8              ReplyQueue;
315 	u8              SGList;
316 	u16             SGTotal;
317 	struct vals32     Tag;
318 	union LUNAddr     LUN;
319 };
320 
321 struct RequestBlock {
322 	u8   CDBLen;
323 	struct {
324 		u8 Type:3;
325 		u8 Attribute:3;
326 		u8 Direction:2;
327 	} Type;
328 	u16  Timeout;
329 	u8   CDB[16];
330 };
331 
332 struct ErrDescriptor {
333 	struct vals32 Addr;
334 	u32  Len;
335 };
336 
337 struct SGDescriptor {
338 	struct vals32 Addr;
339 	u32  Len;
340 	u32  Ext;
341 };
342 
343 union MoreErrInfo {
344 	struct {
345 		u8  Reserved[3];
346 		u8  Type;
347 		u32 ErrorInfo;
348 	} Common_Info;
349 	struct {
350 		u8  Reserved[2];
351 		u8  offense_size; /* size of offending entry */
352 		u8  offense_num;  /* byte # of offense 0-base */
353 		u32 offense_value;
354 	} Invalid_Cmd;
355 };
356 struct ErrorInfo {
357 	u8               ScsiStatus;
358 	u8               SenseLen;
359 	u16              CommandStatus;
360 	u32              ResidualCnt;
361 	union MoreErrInfo  MoreErrInfo;
362 	u8               SenseInfo[SENSEINFOBYTES];
363 };
364 /* Command types */
365 #define CMD_IOCTL_PEND  0x01
366 #define CMD_SCSI	0x03
367 #define CMD_IOACCEL1	0x04
368 #define CMD_IOACCEL2	0x05
369 
370 #define DIRECT_LOOKUP_SHIFT 5
371 #define DIRECT_LOOKUP_BIT 0x10
372 #define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))
373 
374 #define HPSA_ERROR_BIT          0x02
375 struct ctlr_info; /* defined in hpsa.h */
376 /* The size of this structure needs to be divisible by 32
377  * on all architectures because low 5 bits of the addresses
378  * are used as follows:
379  *
380  * bit 0: to device, used to indicate "performant mode" command
381  *        from device, indidcates error status.
382  * bit 1-3: to device, indicates block fetch table entry for
383  *          reducing DMA in fetching commands from host memory.
384  * bit 4: used to indicate whether tag is "direct lookup" (index),
385  *        or a bus address.
386  */
387 
388 #define COMMANDLIST_ALIGNMENT 128
389 struct CommandList {
390 	struct CommandListHeader Header;
391 	struct RequestBlock      Request;
392 	struct ErrDescriptor     ErrDesc;
393 	struct SGDescriptor      SG[SG_ENTRIES_IN_CMD];
394 	/* information associated with the command */
395 	u32			   busaddr; /* physical addr of this record */
396 	struct ErrorInfo *err_info; /* pointer to the allocated mem */
397 	struct ctlr_info	   *h;
398 	int			   cmd_type;
399 	long			   cmdindex;
400 	struct list_head list;
401 	struct completion *waiting;
402 	void   *scsi_cmd;
403 } __aligned(COMMANDLIST_ALIGNMENT);
404 
405 /* Max S/G elements in I/O accelerator command */
406 #define IOACCEL1_MAXSGENTRIES           24
407 #define IOACCEL2_MAXSGENTRIES		28
408 
409 /*
410  * Structure for I/O accelerator (mode 1) commands.
411  * Note that this structure must be 128-byte aligned in size.
412  */
413 #define IOACCEL1_COMMANDLIST_ALIGNMENT 128
414 struct io_accel1_cmd {
415 	u16 dev_handle;			/* 0x00 - 0x01 */
416 	u8  reserved1;			/* 0x02 */
417 	u8  function;			/* 0x03 */
418 	u8  reserved2[8];		/* 0x04 - 0x0B */
419 	u32 err_info;			/* 0x0C - 0x0F */
420 	u8  reserved3[2];		/* 0x10 - 0x11 */
421 	u8  err_info_len;		/* 0x12 */
422 	u8  reserved4;			/* 0x13 */
423 	u8  sgl_offset;			/* 0x14 */
424 	u8  reserved5[7];		/* 0x15 - 0x1B */
425 	u32 transfer_len;		/* 0x1C - 0x1F */
426 	u8  reserved6[4];		/* 0x20 - 0x23 */
427 	u16 io_flags;			/* 0x24 - 0x25 */
428 	u8  reserved7[14];		/* 0x26 - 0x33 */
429 	u8  LUN[8];			/* 0x34 - 0x3B */
430 	u32 control;			/* 0x3C - 0x3F */
431 	u8  CDB[16];			/* 0x40 - 0x4F */
432 	u8  reserved8[16];		/* 0x50 - 0x5F */
433 	u16 host_context_flags;		/* 0x60 - 0x61 */
434 	u16 timeout_sec;		/* 0x62 - 0x63 */
435 	u8  ReplyQueue;			/* 0x64 */
436 	u8  reserved9[3];		/* 0x65 - 0x67 */
437 	struct vals32 Tag;		/* 0x68 - 0x6F */
438 	struct vals32 host_addr;	/* 0x70 - 0x77 */
439 	u8  CISS_LUN[8];		/* 0x78 - 0x7F */
440 	struct SGDescriptor SG[IOACCEL1_MAXSGENTRIES];
441 } __aligned(IOACCEL1_COMMANDLIST_ALIGNMENT);
442 
443 #define IOACCEL1_FUNCTION_SCSIIO        0x00
444 #define IOACCEL1_SGLOFFSET              32
445 
446 #define IOACCEL1_IOFLAGS_IO_REQ         0x4000
447 #define IOACCEL1_IOFLAGS_CDBLEN_MASK    0x001F
448 #define IOACCEL1_IOFLAGS_CDBLEN_MAX     16
449 
450 #define IOACCEL1_CONTROL_NODATAXFER     0x00000000
451 #define IOACCEL1_CONTROL_DATA_OUT       0x01000000
452 #define IOACCEL1_CONTROL_DATA_IN        0x02000000
453 #define IOACCEL1_CONTROL_TASKPRIO_MASK  0x00007800
454 #define IOACCEL1_CONTROL_TASKPRIO_SHIFT 11
455 #define IOACCEL1_CONTROL_SIMPLEQUEUE    0x00000000
456 #define IOACCEL1_CONTROL_HEADOFQUEUE    0x00000100
457 #define IOACCEL1_CONTROL_ORDEREDQUEUE   0x00000200
458 #define IOACCEL1_CONTROL_ACA            0x00000400
459 
460 #define IOACCEL1_HCFLAGS_CISS_FORMAT    0x0013
461 
462 #define IOACCEL1_BUSADDR_CMDTYPE        0x00000060
463 
464 struct ioaccel2_sg_element {
465 	u64 address;
466 	u32 length;
467 	u8 reserved[3];
468 	u8 chain_indicator;
469 #define IOACCEL2_CHAIN 0x80
470 };
471 
472 /*
473  * SCSI Response Format structure for IO Accelerator Mode 2
474  */
475 struct io_accel2_scsi_response {
476 	u8 IU_type;
477 #define IOACCEL2_IU_TYPE_SRF			0x60
478 	u8 reserved1[3];
479 	u8 req_id[4];		/* request identifier */
480 	u8 reserved2[4];
481 	u8 serv_response;		/* service response */
482 #define IOACCEL2_SERV_RESPONSE_COMPLETE		0x000
483 #define IOACCEL2_SERV_RESPONSE_FAILURE		0x001
484 #define IOACCEL2_SERV_RESPONSE_TMF_COMPLETE	0x002
485 #define IOACCEL2_SERV_RESPONSE_TMF_SUCCESS	0x003
486 #define IOACCEL2_SERV_RESPONSE_TMF_REJECTED	0x004
487 #define IOACCEL2_SERV_RESPONSE_TMF_WRONG_LUN	0x005
488 	u8 status;			/* status */
489 #define IOACCEL2_STATUS_SR_TASK_COMP_GOOD	0x00
490 #define IOACCEL2_STATUS_SR_TASK_COMP_CHK_COND	0x02
491 #define IOACCEL2_STATUS_SR_TASK_COMP_BUSY	0x08
492 #define IOACCEL2_STATUS_SR_TASK_COMP_RES_CON	0x18
493 #define IOACCEL2_STATUS_SR_TASK_COMP_SET_FULL	0x28
494 #define IOACCEL2_STATUS_SR_TASK_COMP_ABORTED	0x40
495 #define IOACCEL2_STATUS_SR_IOACCEL_DISABLED	0x0E
496 	u8 data_present;		/* low 2 bits */
497 #define IOACCEL2_NO_DATAPRESENT		0x000
498 #define IOACCEL2_RESPONSE_DATAPRESENT	0x001
499 #define IOACCEL2_SENSE_DATA_PRESENT	0x002
500 #define IOACCEL2_RESERVED		0x003
501 	u8 sense_data_len;		/* sense/response data length */
502 	u8 resid_cnt[4];		/* residual count */
503 	u8 sense_data_buff[32];		/* sense/response data buffer */
504 };
505 
506 /*
507  * Structure for I/O accelerator (mode 2 or m2) commands.
508  * Note that this structure must be 128-byte aligned in size.
509  */
510 #define IOACCEL2_COMMANDLIST_ALIGNMENT 128
511 struct io_accel2_cmd {
512 	u8  IU_type;			/* IU Type */
513 	u8  direction;			/* direction, memtype, and encryption */
514 #define IOACCEL2_DIRECTION_MASK		0x03 /* bits 0,1: direction  */
515 #define IOACCEL2_DIRECTION_MEMTYPE_MASK	0x04 /* bit 2: memtype source/dest */
516 					     /*     0b=PCIe, 1b=DDR */
517 #define IOACCEL2_DIRECTION_ENCRYPT_MASK	0x08 /* bit 3: encryption flag */
518 					     /*     0=off, 1=on */
519 	u8  reply_queue;		/* Reply Queue ID */
520 	u8  reserved1;			/* Reserved */
521 	u32 scsi_nexus;			/* Device Handle */
522 	u32 Tag;			/* cciss tag, lower 4 bytes only */
523 	u32 tweak_lower;		/* Encryption tweak, lower 4 bytes */
524 	u8  cdb[16];			/* SCSI Command Descriptor Block */
525 	u8  cciss_lun[8];		/* 8 byte SCSI address */
526 	u32 data_len;			/* Total bytes to transfer */
527 	u8  cmd_priority_task_attr;	/* priority and task attrs */
528 #define IOACCEL2_PRIORITY_MASK 0x78
529 #define IOACCEL2_ATTR_MASK 0x07
530 	u8  sg_count;			/* Number of sg elements */
531 	u16 dekindex;			/* Data encryption key index */
532 	u64 err_ptr;			/* Error Pointer */
533 	u32 err_len;			/* Error Length*/
534 	u32 tweak_upper;		/* Encryption tweak, upper 4 bytes */
535 	struct ioaccel2_sg_element sg[IOACCEL2_MAXSGENTRIES];
536 	struct io_accel2_scsi_response error_data;
537 } __aligned(IOACCEL2_COMMANDLIST_ALIGNMENT);
538 
539 /*
540  * defines for Mode 2 command struct
541  * FIXME: this can't be all I need mfm
542  */
543 #define IOACCEL2_IU_TYPE	0x40
544 #define IOACCEL2_IU_TMF_TYPE	0x41
545 #define IOACCEL2_DIR_NO_DATA	0x00
546 #define IOACCEL2_DIR_DATA_IN	0x01
547 #define IOACCEL2_DIR_DATA_OUT	0x02
548 /*
549  * SCSI Task Management Request format for Accelerator Mode 2
550  */
551 struct hpsa_tmf_struct {
552 	u8 iu_type;		/* Information Unit Type */
553 	u8 reply_queue;		/* Reply Queue ID */
554 	u8 tmf;			/* Task Management Function */
555 	u8 reserved1;		/* byte 3 Reserved */
556 	u32 it_nexus;		/* SCSI I-T Nexus */
557 	u8 lun_id[8];		/* LUN ID for TMF request */
558 	struct vals32 Tag;	/* cciss tag associated w/ request */
559 	struct vals32 abort_tag;/* cciss tag of SCSI cmd or task to abort */
560 	u64 error_ptr;		/* Error Pointer */
561 	u32 error_len;		/* Error Length */
562 };
563 
564 /* Configuration Table Structure */
565 struct HostWrite {
566 	u32 TransportRequest;
567 	u32 command_pool_addr_hi;
568 	u32 CoalIntDelay;
569 	u32 CoalIntCount;
570 };
571 
572 #define SIMPLE_MODE     0x02
573 #define PERFORMANT_MODE 0x04
574 #define MEMQ_MODE       0x08
575 #define IOACCEL_MODE_1  0x80
576 
577 #define DRIVER_SUPPORT_UA_ENABLE        0x00000001
578 
579 struct CfgTable {
580 	u8            Signature[4];
581 	u32		SpecValence;
582 	u32           TransportSupport;
583 	u32           TransportActive;
584 	struct 		HostWrite HostWrite;
585 	u32           CmdsOutMax;
586 	u32           BusTypes;
587 	u32           TransMethodOffset;
588 	u8            ServerName[16];
589 	u32           HeartBeat;
590 	u32           driver_support;
591 #define			ENABLE_SCSI_PREFETCH 0x100
592 #define			ENABLE_UNIT_ATTN 0x01
593 	u32	 	MaxScatterGatherElements;
594 	u32		MaxLogicalUnits;
595 	u32		MaxPhysicalDevices;
596 	u32		MaxPhysicalDrivesPerLogicalUnit;
597 	u32		MaxPerformantModeCommands;
598 	u32		MaxBlockFetch;
599 	u32		PowerConservationSupport;
600 	u32		PowerConservationEnable;
601 	u32		TMFSupportFlags;
602 	u8		TMFTagMask[8];
603 	u8		reserved[0x78 - 0x70];
604 	u32		misc_fw_support; /* offset 0x78 */
605 #define			MISC_FW_DOORBELL_RESET (0x02)
606 #define			MISC_FW_DOORBELL_RESET2 (0x010)
607 #define			MISC_FW_RAID_OFFLOAD_BASIC (0x020)
608 #define			MISC_FW_EVENT_NOTIFY (0x080)
609 	u8		driver_version[32];
610 	u32             max_cached_write_size;
611 	u8              driver_scratchpad[16];
612 	u32             max_error_info_length;
613 	u32		io_accel_max_embedded_sg_count;
614 	u32		io_accel_request_size_offset;
615 	u32		event_notify;
616 #define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_STATE_CHANGE (1 << 30)
617 #define HPSA_EVENT_NOTIFY_ACCEL_IO_PATH_CONFIG_CHANGE (1 << 31)
618 	u32		clear_event_notify;
619 };
620 
621 #define NUM_BLOCKFETCH_ENTRIES 8
622 struct TransTable_struct {
623 	u32            BlockFetch[NUM_BLOCKFETCH_ENTRIES];
624 	u32            RepQSize;
625 	u32            RepQCount;
626 	u32            RepQCtrAddrLow32;
627 	u32            RepQCtrAddrHigh32;
628 #define MAX_REPLY_QUEUES 64
629 	struct vals32  RepQAddr[MAX_REPLY_QUEUES];
630 };
631 
632 struct hpsa_pci_info {
633 	unsigned char	bus;
634 	unsigned char	dev_fn;
635 	unsigned short	domain;
636 	u32		board_id;
637 };
638 
639 #pragma pack()
640 #endif /* HPSA_CMD_H */
641