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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef CCISS_DEFS_H
#define CCISS_DEFS_H
#include <linux/types.h>
/* general boundary definitions */
#define SENSEINFOBYTES 32 /* note that this value may vary
between host implementations */
/* 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
/* 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
/* Type defs used in the following structs */
#define BYTE __u8
#define WORD __u16
#define HWORD __u16
#define DWORD __u32
#define CISS_MAX_LUN 1024
#define LEVEL2LUN 1 /* index into Target(x) structure, due to byte swapping */
#define LEVEL3LUN 0
#pragma pack(1)
/* Command List Structure */
typedef union _SCSI3Addr_struct {
struct {
BYTE Dev;
BYTE Bus:6;
BYTE Mode:2; /* b00 */
} PeripDev;
struct {
BYTE DevLSB;
BYTE DevMSB:6;
BYTE Mode:2; /* b01 */
} LogDev;
struct {
BYTE Dev:5;
BYTE Bus:3;
BYTE Targ:6;
BYTE Mode:2; /* b10 */
} LogUnit;
} SCSI3Addr_struct;
typedef struct _PhysDevAddr_struct {
DWORD TargetId:24;
DWORD Bus:6;
DWORD Mode:2;
SCSI3Addr_struct Target[2]; /* 2 level target device addr */
} PhysDevAddr_struct;
typedef struct _LogDevAddr_struct {
DWORD VolId:30;
DWORD Mode:2;
BYTE reserved[4];
} LogDevAddr_struct;
typedef union _LUNAddr_struct {
BYTE LunAddrBytes[8];
SCSI3Addr_struct SCSI3Lun[4];
PhysDevAddr_struct PhysDev;
LogDevAddr_struct LogDev;
} LUNAddr_struct;
typedef struct _RequestBlock_struct {
BYTE CDBLen;
struct {
BYTE Type:3;
BYTE Attribute:3;
BYTE Direction:2;
} Type;
HWORD Timeout;
BYTE CDB[16];
} RequestBlock_struct;
typedef union _MoreErrInfo_struct{
struct {
BYTE Reserved[3];
BYTE Type;
DWORD ErrorInfo;
} Common_Info;
struct{
BYTE Reserved[2];
BYTE offense_size; /* size of offending entry */
BYTE offense_num; /* byte # of offense 0-base */
DWORD offense_value;
} Invalid_Cmd;
} MoreErrInfo_struct;
typedef struct _ErrorInfo_struct {
BYTE ScsiStatus;
BYTE SenseLen;
HWORD CommandStatus;
DWORD ResidualCnt;
MoreErrInfo_struct MoreErrInfo;
BYTE SenseInfo[SENSEINFOBYTES];
} ErrorInfo_struct;
#pragma pack()
#endif /* CCISS_DEFS_H */
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