cciss_cmd.h

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#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 */