Home Home > GIT Browse > stable-xen
summaryrefslogtreecommitdiff
blob: d9be6b4d49a6a0e3bc950d3cb395edbef5af6d3b (plain)
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
#ifndef CCISS_CMD_H
#define CCISS_CMD_H

#include <linux/cciss_defs.h>

/* DEFINES */
#define CISS_VERSION "1.00"

/* general boundary definitions */
#define MAXSGENTRIES            32
#define CCISS_SG_CHAIN          0x80000000
#define MAXREPLYQS              256

/* 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

/* 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_BusType_Ultra2   0x00000001l
#define CFGTBL_BusType_Ultra3   0x00000002l
#define CFGTBL_BusType_Fibre1G  0x00000100l
#define CFGTBL_BusType_Fibre2G  0x00000200l
typedef struct _vals32
{
        __u32   lower;
        __u32   upper;
} vals32;

typedef union _u64bit
{
   vals32	val32;
   __u64	val;
} u64bit;

/* Type defs used in the following structs */
#define QWORD vals32 

/* STRUCTURES */
#define CISS_MAX_PHYS_LUN	1024
/* SCSI-3 Cmmands */

#pragma pack(1)	

#define CISS_INQUIRY 0x12
/* Date returned */
typedef struct _InquiryData_struct
{
  BYTE data_byte[36];
} InquiryData_struct;

#define CISS_REPORT_LOG 0xc2    /* Report Logical LUNs */
#define CISS_REPORT_PHYS 0xc3   /* Report Physical LUNs */
/* Data returned */
typedef struct _ReportLUNdata_struct
{
  BYTE LUNListLength[4];
  DWORD reserved;
  BYTE LUN[CISS_MAX_LUN][8];
} ReportLunData_struct;

#define CCISS_READ_CAPACITY 0x25 /* Read Capacity */ 
typedef struct _ReadCapdata_struct
{
  BYTE total_size[4];	/* Total size in blocks */
  BYTE block_size[4];	/* Size of blocks in bytes */
} ReadCapdata_struct;

#define CCISS_READ_CAPACITY_16 0x9e /* Read Capacity 16 */

/* service action to differentiate a 16 byte read capacity from
   other commands that use the 0x9e SCSI op code */

#define CCISS_READ_CAPACITY_16_SERVICE_ACT 0x10

typedef struct _ReadCapdata_struct_16
{
	BYTE total_size[8];   /* Total size in blocks */
	BYTE block_size[4];   /* Size of blocks in bytes */
	BYTE prot_en:1;       /* protection enable bit */
	BYTE rto_en:1;        /* reference tag own enable bit */
	BYTE reserved:6;      /* reserved bits */
	BYTE reserved2[18];   /* reserved bytes per spec */
} ReadCapdata_struct_16;

/* Define the supported read/write commands for cciss based controllers */

#define CCISS_READ_10   0x28    /* Read(10)  */
#define CCISS_WRITE_10  0x2a    /* Write(10) */
#define CCISS_READ_16   0x88    /* Read(16)  */
#define CCISS_WRITE_16  0x8a    /* Write(16) */

/* Define the CDB lengths supported by cciss based controllers */

#define CDB_LEN10	10
#define CDB_LEN16	16

/* BMIC commands */
#define BMIC_READ 0x26
#define BMIC_WRITE 0x27
#define BMIC_CACHE_FLUSH 0xc2
#define CCISS_CACHE_FLUSH 0x01	/* C2 was already being used by CCISS */

#define CCISS_ABORT_MSG 0x00
#define CCISS_RESET_MSG 0x01
#define CCISS_RESET_TYPE_CONTROLLER 0x00
#define CCISS_RESET_TYPE_BUS 0x01
#define CCISS_RESET_TYPE_TARGET 0x03
#define CCISS_RESET_TYPE_LUN 0x04
#define CCISS_NOOP_MSG 0x03

/* Command List Structure */
#define CTLR_LUNID "\0\0\0\0\0\0\0\0"

typedef struct _CommandListHeader_struct {
  BYTE              ReplyQueue;
  BYTE              SGList;
  HWORD             SGTotal;
  QWORD             Tag;
  LUNAddr_struct    LUN;
} CommandListHeader_struct;
typedef struct _ErrDescriptor_struct {
  QWORD  Addr;
  DWORD  Len;
} ErrDescriptor_struct;
typedef struct _SGDescriptor_struct {
  QWORD  Addr;
  DWORD  Len;
  DWORD  Ext;
} SGDescriptor_struct;

/* Command types */
#define CMD_RWREQ       0x00
#define CMD_IOCTL_PEND  0x01
#define CMD_SCSI	0x03
#define CMD_MSG_DONE	0x04
#define CMD_MSG_TIMEOUT 0x05
#define CMD_MSG_STALE	0xff

/* This structure needs to be divisible by COMMANDLIST_ALIGNMENT
 * because low bits of the address are used to to indicate that
 * whether the tag contains an index or an address.  PAD_32 and
 * PAD_64 can be adjusted independently as needed for 32-bit
 * and 64-bits systems.
 */
#define COMMANDLIST_ALIGNMENT (32)
#define IS_64_BIT ((sizeof(long) - 4)/4)
#define IS_32_BIT (!IS_64_BIT)
#define PAD_32 (0)
#define PAD_64 (4)
#define PADSIZE (IS_32_BIT * PAD_32 + IS_64_BIT * PAD_64)
#define DIRECT_LOOKUP_BIT 0x10
#define DIRECT_LOOKUP_SHIFT 5

typedef struct _CommandList_struct {
  CommandListHeader_struct Header;
  RequestBlock_struct      Request;
  ErrDescriptor_struct     ErrDesc;
  SGDescriptor_struct      SG[MAXSGENTRIES];
	/* information associated with the command */ 
  __u32			   busaddr; /* physical address of this record */
  ErrorInfo_struct * 	   err_info; /* pointer to the allocated mem */ 
  int			   ctlr;
  int			   cmd_type; 
  long			   cmdindex;
  struct list_head list;
  struct request *	   rq;
  struct completion *waiting;
  int	 retry_count;
  void * scsi_cmd;
  char pad[PADSIZE];
} CommandList_struct;

/* Configuration Table Structure */
typedef struct _HostWrite_struct {
  DWORD TransportRequest;
  DWORD Reserved;
  DWORD CoalIntDelay;
  DWORD CoalIntCount;
} HostWrite_struct;

typedef struct _CfgTable_struct {
  BYTE             Signature[4];
  DWORD            SpecValence;
#define SIMPLE_MODE	0x02
#define PERFORMANT_MODE	0x04
#define MEMQ_MODE	0x08
  DWORD            TransportSupport;
  DWORD            TransportActive;
  HostWrite_struct HostWrite;
  DWORD            CmdsOutMax;
  DWORD            BusTypes;
  DWORD            TransMethodOffset;
  BYTE             ServerName[16];
  DWORD            HeartBeat;
  DWORD            SCSI_Prefetch;
  DWORD            MaxSGElements;
  DWORD            MaxLogicalUnits;
  DWORD            MaxPhysicalDrives;
  DWORD            MaxPhysicalDrivesPerLogicalUnit;
  DWORD            MaxPerformantModeCommands;
  u8		   reserved[0x78 - 0x58];
  u32		   misc_fw_support; /* offset 0x78 */
#define MISC_FW_DOORBELL_RESET (0x02)
#define MISC_FW_DOORBELL_RESET2 (0x10)
	u8	   driver_version[32];
} CfgTable_struct;

struct TransTable_struct {
  u32 BlockFetch0;
  u32 BlockFetch1;
  u32 BlockFetch2;
  u32 BlockFetch3;
  u32 BlockFetch4;
  u32 BlockFetch5;
  u32 BlockFetch6;
  u32 BlockFetch7;
  u32 RepQSize;
  u32 RepQCount;
  u32 RepQCtrAddrLow32;
  u32 RepQCtrAddrHigh32;
  u32 RepQAddr0Low32;
  u32 RepQAddr0High32;
};

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