1 #ifndef CCISS_DEFS_H 2 #define CCISS_DEFS_H 3 4 #include <linux/types.h> 5 6 /* general boundary definitions */ 7 #define SENSEINFOBYTES 32 /* note that this value may vary 8 between host implementations */ 9 10 /* Command Status value */ 11 #define CMD_SUCCESS 0x0000 12 #define CMD_TARGET_STATUS 0x0001 13 #define CMD_DATA_UNDERRUN 0x0002 14 #define CMD_DATA_OVERRUN 0x0003 15 #define CMD_INVALID 0x0004 16 #define CMD_PROTOCOL_ERR 0x0005 17 #define CMD_HARDWARE_ERR 0x0006 18 #define CMD_CONNECTION_LOST 0x0007 19 #define CMD_ABORTED 0x0008 20 #define CMD_ABORT_FAILED 0x0009 21 #define CMD_UNSOLICITED_ABORT 0x000A 22 #define CMD_TIMEOUT 0x000B 23 #define CMD_UNABORTABLE 0x000C 24 25 /* transfer direction */ 26 #define XFER_NONE 0x00 27 #define XFER_WRITE 0x01 28 #define XFER_READ 0x02 29 #define XFER_RSVD 0x03 30 31 /* task attribute */ 32 #define ATTR_UNTAGGED 0x00 33 #define ATTR_SIMPLE 0x04 34 #define ATTR_HEADOFQUEUE 0x05 35 #define ATTR_ORDERED 0x06 36 #define ATTR_ACA 0x07 37 38 /* cdb type */ 39 #define TYPE_CMD 0x00 40 #define TYPE_MSG 0x01 41 42 /* Type defs used in the following structs */ 43 #define BYTE __u8 44 #define WORD __u16 45 #define HWORD __u16 46 #define DWORD __u32 47 48 #define CISS_MAX_LUN 1024 49 50 #define LEVEL2LUN 1 /* index into Target(x) structure, due to byte swapping */ 51 #define LEVEL3LUN 0 52 53 #pragma pack(1) 54 55 /* Command List Structure */ 56 typedef union _SCSI3Addr_struct { 57 struct { 58 BYTE Dev; 59 BYTE Bus:6; 60 BYTE Mode:2; /* b00 */ 61 } PeripDev; 62 struct { 63 BYTE DevLSB; 64 BYTE DevMSB:6; 65 BYTE Mode:2; /* b01 */ 66 } LogDev; 67 struct { 68 BYTE Dev:5; 69 BYTE Bus:3; 70 BYTE Targ:6; 71 BYTE Mode:2; /* b10 */ 72 } LogUnit; 73 } SCSI3Addr_struct; 74 75 typedef struct _PhysDevAddr_struct { 76 DWORD TargetId:24; 77 DWORD Bus:6; 78 DWORD Mode:2; 79 SCSI3Addr_struct Target[2]; /* 2 level target device addr */ 80 } PhysDevAddr_struct; 81 82 typedef struct _LogDevAddr_struct { 83 DWORD VolId:30; 84 DWORD Mode:2; 85 BYTE reserved[4]; 86 } LogDevAddr_struct; 87 88 typedef union _LUNAddr_struct { 89 BYTE LunAddrBytes[8]; 90 SCSI3Addr_struct SCSI3Lun[4]; 91 PhysDevAddr_struct PhysDev; 92 LogDevAddr_struct LogDev; 93 } LUNAddr_struct; 94 95 typedef struct _RequestBlock_struct { 96 BYTE CDBLen; 97 struct { 98 BYTE Type:3; 99 BYTE Attribute:3; 100 BYTE Direction:2; 101 } Type; 102 HWORD Timeout; 103 BYTE CDB[16]; 104 } RequestBlock_struct; 105 106 typedef union _MoreErrInfo_struct{ 107 struct { 108 BYTE Reserved[3]; 109 BYTE Type; 110 DWORD ErrorInfo; 111 } Common_Info; 112 struct{ 113 BYTE Reserved[2]; 114 BYTE offense_size; /* size of offending entry */ 115 BYTE offense_num; /* byte # of offense 0-base */ 116 DWORD offense_value; 117 } Invalid_Cmd; 118 } MoreErrInfo_struct; 119 typedef struct _ErrorInfo_struct { 120 BYTE ScsiStatus; 121 BYTE SenseLen; 122 HWORD CommandStatus; 123 DWORD ResidualCnt; 124 MoreErrInfo_struct MoreErrInfo; 125 BYTE SenseInfo[SENSEINFOBYTES]; 126 } ErrorInfo_struct; 127 128 #pragma pack() 129 130 #endif /* CCISS_DEFS_H */ 131