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 */ 56typedef 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 75typedef 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 82typedef struct _LogDevAddr_struct { 83 DWORD VolId:30; 84 DWORD Mode:2; 85 BYTE reserved[4]; 86} LogDevAddr_struct; 87 88typedef union _LUNAddr_struct { 89 BYTE LunAddrBytes[8]; 90 SCSI3Addr_struct SCSI3Lun[4]; 91 PhysDevAddr_struct PhysDev; 92 LogDevAddr_struct LogDev; 93} LUNAddr_struct; 94 95typedef 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 106typedef 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; 119typedef 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