diff options
Diffstat (limited to 'drivers/block/cciss_cmd.h')
| -rw-r--r-- | drivers/block/cciss_cmd.h | 271 |
1 files changed, 271 insertions, 0 deletions
diff --git a/drivers/block/cciss_cmd.h b/drivers/block/cciss_cmd.h new file mode 100644 index 000000000000..a88a88817623 --- /dev/null +++ b/drivers/block/cciss_cmd.h @@ -0,0 +1,271 @@ +#ifndef CCISS_CMD_H +#define CCISS_CMD_H +//########################################################################### +//DEFINES +//########################################################################### +#define CISS_VERSION "1.00" + +//general boundary defintions +#define SENSEINFOBYTES 32//note that this value may vary between host implementations +#define MAXSGENTRIES 31 +#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 + +//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 + +//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 + +//Configuration Table +#define CFGTBL_ChangeReq 0x00000001l +#define CFGTBL_AccCmds 0x00000001l + +#define CFGTBL_Trans_Simple 0x00000002l + +#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 BYTE __u8 +#define WORD __u16 +#define HWORD __u16 +#define DWORD __u32 +#define QWORD vals32 + +//########################################################################### +//STRUCTURES +//########################################################################### +#define CISS_MAX_LUN 16 +#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; + +// 12 byte commands not implemented in firmware yet. +// #define CCISS_READ 0xa8 // Read(12) +// #define CCISS_WRITE 0xaa // Write(12) + #define CCISS_READ 0x28 // Read(10) + #define CCISS_WRITE 0x2a // Write(10) + +// 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 + +//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 _CommandListHeader_struct { + BYTE ReplyQueue; + BYTE SGList; + HWORD SGTotal; + QWORD Tag; + LUNAddr_struct LUN; +} CommandListHeader_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 struct _ErrDescriptor_struct { + QWORD Addr; + DWORD Len; +} ErrDescriptor_struct; +typedef struct _SGDescriptor_struct { + QWORD Addr; + DWORD Len; + DWORD Ext; +} SGDescriptor_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; + +/* 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 + +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; + struct _CommandList_struct *prev; + struct _CommandList_struct *next; + struct request * rq; + struct completion *waiting; + int retry_count; +#ifdef CONFIG_CISS_SCSI_TAPE + void * scsi_cmd; +#endif +} 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; + DWORD TransportSupport; + DWORD TransportActive; + HostWrite_struct HostWrite; + DWORD CmdsOutMax; + DWORD BusTypes; + DWORD Reserved; + BYTE ServerName[16]; + DWORD HeartBeat; + DWORD SCSI_Prefetch; +} CfgTable_struct; +#pragma pack() +#endif // CCISS_CMD_H |