aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/scsi/hpsa_cmd.h
blob: bfc8c4ea66f8fe53315f91fbb36fa3eb77b320d1 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
/*
 *    Disk Array driver for HP Smart Array SAS controllers
 *    Copyright 2000, 2009 Hewlett-Packard Development Company, L.P.
 *
 *    This program is free software; you can redistribute it and/or modify
 *    it under the terms of the GNU General Public License as published by
 *    the Free Software Foundation; version 2 of the License.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
 *    NON INFRINGEMENT.  See the GNU General Public License for more details.
 *
 *    You should have received a copy of the GNU General Public License
 *    along with this program; if not, write to the Free Software
 *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *    Questions/Comments/Bugfixes to iss_storagedev@hp.com
 *
 */
#ifndef HPSA_CMD_H
#define HPSA_CMD_H

/* general boundary defintions */
#define SENSEINFOBYTES          32 /* may vary between hbas */
#define SG_ENTRIES_IN_CMD	32 /* Max SG entries excluding chain blocks */
#define HPSA_SG_CHAIN		0x80000000
#define MAXREPLYQS              256

/* Command Status value */
#define CMD_SUCCESS             0x0000
#define CMD_TARGET_STATUS       0x0001
#define CMD_DATA_UNDERRUN       0x0002
#define CMD_DATA_OVERRUN        0x0003
#define CMD_INVALID             0x0004
#define CMD_PROTOCOL_ERR        0x0005
#define CMD_HARDWARE_ERR        0x0006
#define CMD_CONNECTION_LOST     0x0007
#define CMD_ABORTED             0x0008
#define CMD_ABORT_FAILED        0x0009
#define CMD_UNSOLICITED_ABORT   0x000A
#define CMD_TIMEOUT             0x000B
#define CMD_UNABORTABLE		0x000C

/* Unit Attentions ASC's as defined for the MSA2012sa */
#define POWER_OR_RESET			0x29
#define STATE_CHANGED			0x2a
#define UNIT_ATTENTION_CLEARED		0x2f
#define LUN_FAILED			0x3e
#define REPORT_LUNS_CHANGED		0x3f

/* Unit Attentions ASCQ's as defined for the MSA2012sa */

	/* These ASCQ's defined for ASC = POWER_OR_RESET */
#define POWER_ON_RESET			0x00
#define POWER_ON_REBOOT			0x01
#define SCSI_BUS_RESET			0x02
#define MSA_TARGET_RESET		0x03
#define CONTROLLER_FAILOVER		0x04
#define TRANSCEIVER_SE			0x05
#define TRANSCEIVER_LVD			0x06

	/* These ASCQ's defined for ASC = STATE_CHANGED */
#define RESERVATION_PREEMPTED		0x03
#define ASYM_ACCESS_CHANGED		0x06
#define LUN_CAPACITY_CHANGED		0x09

/* transfer direction */
#define XFER_NONE               0x00
#define XFER_WRITE              0x01
#define XFER_READ               0x02
#define XFER_RSVD               0x03

/* task attribute */
#define ATTR_UNTAGGED           0x00
#define ATTR_SIMPLE             0x04
#define ATTR_HEADOFQUEUE        0x05
#define ATTR_ORDERED            0x06
#define ATTR_ACA                0x07

/* cdb type */
#define TYPE_CMD				0x00
#define TYPE_MSG				0x01

/* Message Types  */
#define HPSA_TASK_MANAGEMENT    0x00
#define HPSA_RESET              0x01
#define HPSA_SCAN               0x02
#define HPSA_NOOP               0x03

#define HPSA_CTLR_RESET_TYPE    0x00
#define HPSA_BUS_RESET_TYPE     0x01
#define HPSA_TARGET_RESET_TYPE  0x03
#define HPSA_LUN_RESET_TYPE     0x04
#define HPSA_NEXUS_RESET_TYPE   0x05

/* Task Management Functions */
#define HPSA_TMF_ABORT_TASK     0x00
#define HPSA_TMF_ABORT_TASK_SET 0x01
#define HPSA_TMF_CLEAR_ACA      0x02
#define HPSA_TMF_CLEAR_TASK_SET 0x03
#define HPSA_TMF_QUERY_TASK     0x04
#define HPSA_TMF_QUERY_TASK_SET 0x05
#define HPSA_TMF_QUERY_ASYNCEVENT 0x06



/* config space register offsets */
#define CFG_VENDORID            0x00
#define CFG_DEVICEID            0x02
#define CFG_I2OBAR              0x10
#define CFG_MEM1BAR             0x14

/* i2o space register offsets */
#define I2O_IBDB_SET            0x20
#define I2O_IBDB_CLEAR          0x70
#define I2O_INT_STATUS          0x30
#define I2O_INT_MASK            0x34
#define I2O_IBPOST_Q            0x40
#define I2O_OBPOST_Q            0x44
#define I2O_DMA1_CFG		0x214

/* Configuration Table */
#define CFGTBL_ChangeReq        0x00000001l
#define CFGTBL_AccCmds          0x00000001l
#define DOORBELL_CTLR_RESET	0x00000004l
#define DOORBELL_CTLR_RESET2	0x00000020l

#define CFGTBL_Trans_Simple     0x00000002l
#define CFGTBL_Trans_Performant 0x00000004l
#define CFGTBL_Trans_use_short_tags 0x20000000l
#define CFGTBL_Trans_enable_directed_msix (1 << 30)

#define CFGTBL_BusType_Ultra2   0x00000001l
#define CFGTBL_BusType_Ultra3   0x00000002l
#define CFGTBL_BusType_Fibre1G  0x00000100l
#define CFGTBL_BusType_Fibre2G  0x00000200l
struct vals32 {
	u32   lower;
	u32   upper;
};

union u64bit {
	struct vals32 val32;
	u64 val;
};

/* FIXME this is a per controller value (barf!) */
#define HPSA_MAX_LUN 1024
#define HPSA_MAX_PHYS_LUN 1024
#define MAX_EXT_TARGETS 32
#define HPSA_MAX_DEVICES (HPSA_MAX_PHYS_LUN + HPSA_MAX_LUN + \
	MAX_EXT_TARGETS + 1) /* + 1 is for the controller itself */

/* SCSI-3 Commands */
#pragma pack(1)

#define HPSA_INQUIRY 0x12
struct InquiryData {
	u8 data_byte[36];
};

#define HPSA_REPORT_LOG 0xc2    /* Report Logical LUNs */
#define HPSA_REPORT_PHYS 0xc3   /* Report Physical LUNs */
struct ReportLUNdata {
	u8 LUNListLength[4];
	u32 reserved;
	u8 LUN[HPSA_MAX_LUN][8];
};

struct ReportExtendedLUNdata {
	u8 LUNListLength[4];
	u8 extended_response_flag;
	u8 reserved[3];
	u8 LUN[HPSA_MAX_LUN][24];
};

struct SenseSubsystem_info {
	u8 reserved[36];
	u8 portname[8];
	u8 reserved1[1108];
};

/* BMIC commands */
#define BMIC_READ 0x26
#define BMIC_WRITE 0x27
#define BMIC_CACHE_FLUSH 0xc2
#define HPSA_CACHE_FLUSH 0x01	/* C2 was already being used by HPSA */
#define BMIC_FLASH_FIRMWARE 0xF7

/* Command List Structure */
union SCSI3Addr {
	struct {
		u8 Dev;
		u8 Bus:6;
		u8 Mode:2;        /* b00 */
	} PeripDev;
	struct {
		u8 DevLSB;
		u8 DevMSB:6;
		u8 Mode:2;        /* b01 */
	} LogDev;
	struct {
		u8 Dev:5;
		u8 Bus:3;
		u8 Targ:6;
		u8 Mode:2;        /* b10 */
	} LogUnit;
};

struct PhysDevAddr {
	u32             TargetId:24;
	u32             Bus:6;
	u32             Mode:2;
	/* 2 level target device addr */
	union SCSI3Addr  Target[2];
};

struct LogDevAddr {
	u32            VolId:30;
	u32            Mode:2;
	u8             reserved[4];
};

union LUNAddr {
	u8               LunAddrBytes[8];
	union SCSI3Addr    SCSI3Lun[4];
	struct PhysDevAddr PhysDev;
	struct LogDevAddr  LogDev;
};

struct CommandListHeader {
	u8              ReplyQueue;
	u8              SGList;
	u16             SGTotal;
	struct vals32     Tag;
	union LUNAddr     LUN;
};

struct RequestBlock {
	u8   CDBLen;
	struct {
		u8 Type:3;
		u8 Attribute:3;
		u8 Direction:2;
	} Type;
	u16  Timeout;
	u8   CDB[16];
};

struct ErrDescriptor {
	struct vals32 Addr;
	u32  Len;
};

struct SGDescriptor {
	struct vals32 Addr;
	u32  Len;
	u32  Ext;
};

union MoreErrInfo {
	struct {
		u8  Reserved[3];
		u8  Type;
		u32 ErrorInfo;
	} Common_Info;
	struct {
		u8  Reserved[2];
		u8  offense_size; /* size of offending entry */
		u8  offense_num;  /* byte # of offense 0-base */
		u32 offense_value;
	} Invalid_Cmd;
};
struct ErrorInfo {
	u8               ScsiStatus;
	u8               SenseLen;
	u16              CommandStatus;
	u32              ResidualCnt;
	union MoreErrInfo  MoreErrInfo;
	u8               SenseInfo[SENSEINFOBYTES];
};
/* Command types */
#define CMD_IOCTL_PEND  0x01
#define CMD_SCSI	0x03

#define DIRECT_LOOKUP_SHIFT 5
#define DIRECT_LOOKUP_BIT 0x10
#define DIRECT_LOOKUP_MASK (~((1 << DIRECT_LOOKUP_SHIFT) - 1))

#define HPSA_ERROR_BIT          0x02
struct ctlr_info; /* defined in hpsa.h */
/* The size of this structure needs to be divisible by 32
 * on all architectures because low 5 bits of the addresses
 * are used as follows:
 *
 * bit 0: to device, used to indicate "performant mode" command
 *        from device, indidcates error status.
 * bit 1-3: to device, indicates block fetch table entry for
 *          reducing DMA in fetching commands from host memory.
 * bit 4: used to indicate whether tag is "direct lookup" (index),
 *        or a bus address.
 */

struct CommandList {
	struct CommandListHeader Header;
	struct RequestBlock      Request;
	struct ErrDescriptor     ErrDesc;
	struct SGDescriptor      SG[SG_ENTRIES_IN_CMD];
	/* information associated with the command */
	u32			   busaddr; /* physical addr of this record */
	struct ErrorInfo *err_info; /* pointer to the allocated mem */
	struct ctlr_info	   *h;
	int			   cmd_type;
	long			   cmdindex;
	struct list_head list;
	struct request *rq;
	struct completion *waiting;
	void   *scsi_cmd;

/* on 64 bit architectures, to get this to be 32-byte-aligned
 * it so happens we need PAD_64 bytes of padding, on 32 bit systems,
 * we need PAD_32 bytes of padding (see below).   This does that.
 * If it happens that 64 bit and 32 bit systems need different
 * padding, PAD_32 and PAD_64 can be set independently, and.
 * the code below will do the right thing.
 */
#define IS_32_BIT ((8 - sizeof(long))/4)
#define IS_64_BIT (!IS_32_BIT)
#define PAD_32 (4)
#define PAD_64 (4)
#define COMMANDLIST_PAD (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
	u8 pad[COMMANDLIST_PAD];
};

/* Configuration Table Structure */
struct HostWrite {
	u32 TransportRequest;
	u32 Reserved;
	u32 CoalIntDelay;
	u32 CoalIntCount;
};

#define SIMPLE_MODE     0x02
#define PERFORMANT_MODE 0x04
#define MEMQ_MODE       0x08

struct CfgTable {
	u8            Signature[4];
	u32		SpecValence;
	u32           TransportSupport;
	u32           TransportActive;
	struct 		HostWrite HostWrite;
	u32           CmdsOutMax;
	u32           BusTypes;
	u32           TransMethodOffset;
	u8            ServerName[16];
	u32           HeartBeat;
	u32           driver_support;
#define			ENABLE_SCSI_PREFETCH 0x100
#define			ENABLE_UNIT_ATTN 0x01
	u32	 	MaxScatterGatherElements;
	u32		MaxLogicalUnits;
	u32		MaxPhysicalDevices;
	u32		MaxPhysicalDrivesPerLogicalUnit;
	u32		MaxPerformantModeCommands;
	u32		MaxBlockFetch;
	u32		PowerConservationSupport;
	u32		PowerConservationEnable;
	u32		TMFSupportFlags;
	u8		TMFTagMask[8];
	u8		reserved[0x78 - 0x70];
	u32		misc_fw_support; /* offset 0x78 */
#define			MISC_FW_DOORBELL_RESET (0x02)
#define			MISC_FW_DOORBELL_RESET2 (0x010)
	u8		driver_version[32];

};

#define NUM_BLOCKFETCH_ENTRIES 8
struct TransTable_struct {
	u32            BlockFetch[NUM_BLOCKFETCH_ENTRIES];
	u32            RepQSize;
	u32            RepQCount;
	u32            RepQCtrAddrLow32;
	u32            RepQCtrAddrHigh32;
#define MAX_REPLY_QUEUES 8
	struct vals32  RepQAddr[MAX_REPLY_QUEUES];
};

struct hpsa_pci_info {
	unsigned char	bus;
	unsigned char	dev_fn;
	unsigned short	domain;
	u32		board_id;
};

#pragma pack()
#endif /* HPSA_CMD_H */