qla1280.h

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        #define CONTINUE_TGT_IO_TYPE 7  /* CTIO entry */
    uint8_t  entry_count;               /* Entry count. */
    uint8_t  reserved_1;
    uint8_t  entry_status;              /* Entry Status. */
    uint32_t reserved_2;
    uint8_t  lun;                       /* SCSI LUN */
    uint8_t  initiator_id;
    uint8_t  reserved_3;
    uint8_t  target_id;
    uint32_t option_flags;
    uint8_t  status;
    uint8_t  scsi_status;
    uint8_t  tag_value;                 /* Received queue tag message value */
    uint8_t  tag_type;                  /* Received queue tag message type */
    uint32_t transfer_length;
    uint32_t residual;
    uint16_t timeout;                   /* 0 = 30 seconds, 0xFFFF = disable */
    uint16_t dseg_count;                /* Data segment count. */
    uint32_t dseg_0_address;            /* Data segment 0 address. */
    uint32_t dseg_0_length;             /* Data segment 0 length. */
    uint32_t dseg_1_address;            /* Data segment 1 address. */
    uint32_t dseg_1_length;             /* Data segment 1 length. */
    uint32_t dseg_2_address;            /* Data segment 2 address. */
    uint32_t dseg_2_length;             /* Data segment 2 length. */
    uint32_t dseg_3_address;            /* Data segment 3 address. */
    uint32_t dseg_3_length;             /* Data segment 3 length. */
}ctio_entry_t;

/*
 * ISP queue - CTIO returned entry structure definition.
 */
typedef struct
{
    uint8_t  entry_type;                /* Entry type. */
        #define CTIO_RET_TYPE   7       /* CTIO return entry */
    uint8_t  entry_count;               /* Entry count. */
    uint8_t  reserved_1;
    uint8_t  entry_status;              /* Entry Status. */
    uint32_t reserved_2;
    uint8_t  lun;                       /* SCSI LUN */
    uint8_t  initiator_id;
    uint8_t  reserved_3;
    uint8_t  target_id;
    uint32_t option_flags;
    uint8_t  status;
    uint8_t  scsi_status;
    uint8_t  tag_value;                 /* Received queue tag message value */
    uint8_t  tag_type;                  /* Received queue tag message type */
    uint32_t transfer_length;
    uint32_t residual;
    uint16_t timeout;                   /* 0 = 30 seconds, 0xFFFF = disable */
    uint16_t dseg_count;                /* Data segment count. */
    uint32_t dseg_0_address;            /* Data segment 0 address. */
    uint32_t dseg_0_length;             /* Data segment 0 length. */
    uint32_t dseg_1_address;            /* Data segment 1 address. */
    uint16_t dseg_1_length;             /* Data segment 1 length. */
    uint8_t  sense_data[18];
}ctio_ret_entry_t;

/*
 * ISP queue - CTIO A64 entry structure definition.
 */
typedef struct
{
    uint8_t  entry_type;                /* Entry type. */
        #define CTIO_A64_TYPE 0xF       /* CTIO A64 entry */
    uint8_t  entry_count;               /* Entry count. */
    uint8_t  reserved_1;
    uint8_t  entry_status;              /* Entry Status. */
    uint32_t reserved_2;
    uint8_t  lun;                       /* SCSI LUN */
    uint8_t  initiator_id;
    uint8_t  reserved_3;
    uint8_t  target_id;
    uint32_t option_flags;
    uint8_t  status;
    uint8_t  scsi_status;
    uint8_t  tag_value;                 /* Received queue tag message value */
    uint8_t  tag_type;                  /* Received queue tag message type */
    uint32_t transfer_length;
    uint32_t residual;
    uint16_t timeout;                   /* 0 = 30 seconds, 0xFFFF = disable */
    uint16_t dseg_count;                /* Data segment count. */
    uint32_t reserved_4[2];
    uint32_t dseg_0_address[2];         /* Data segment 0 address. */
    uint32_t dseg_0_length;             /* Data segment 0 length. */
    uint32_t dseg_1_address[2];         /* Data segment 1 address. */
    uint32_t dseg_1_length;             /* Data segment 1 length. */
}ctio_a64_entry_t;

/*
 * ISP queue - CTIO returned entry structure definition.
 */
typedef struct
{
    uint8_t  entry_type;                /* Entry type. */
        #define CTIO_A64_RET_TYPE 0xF   /* CTIO A64 returned entry */
    uint8_t  entry_count;               /* Entry count. */
    uint8_t  reserved_1;
    uint8_t  entry_status;              /* Entry Status. */
    uint32_t reserved_2;
    uint8_t  lun;                       /* SCSI LUN */
    uint8_t  initiator_id;
    uint8_t  reserved_3;
    uint8_t  target_id;
    uint32_t option_flags;
    uint8_t  status;
    uint8_t  scsi_status;
    uint8_t  tag_value;                 /* Received queue tag message value */
    uint8_t  tag_type;                  /* Received queue tag message type */
    uint32_t transfer_length;
    uint32_t residual;
    uint16_t timeout;                   /* 0 = 30 seconds, 0xFFFF = disable */
    uint16_t dseg_count;                /* Data segment count. */
    uint16_t reserved_4[7];
    uint8_t  sense_data[18];
}ctio_a64_ret_entry_t;

/*
 * ISP request and response queue entry sizes
 */
#define RESPONSE_ENTRY_SIZE     (sizeof(response_t))
#define REQUEST_ENTRY_SIZE      (sizeof(request_t))

/*
 * ISP status entry - completion status definitions.
 */
#define CS_COMPLETE         0x0         /* No errors */
#define CS_INCOMPLETE       0x1         /* Incomplete transfer of cmd. */
#define CS_DMA              0x2         /* A DMA direction error. */
#define CS_TRANSPORT        0x3         /* Transport error. */
#define CS_RESET            0x4         /* SCSI bus reset occurred */
#define CS_ABORTED          0x5         /* System aborted command. */
#define CS_TIMEOUT          0x6         /* Timeout error. */
#define CS_DATA_OVERRUN     0x7         /* Data overrun. */
#define CS_COMMAND_OVERRUN  0x8         /* Command Overrun. */
#define CS_STATUS_OVERRUN   0x9         /* Status Overrun. */
#define CS_BAD_MSG          0xA         /* Bad msg after status phase. */
#define CS_NO_MSG_OUT       0xB         /* No msg out after selection. */
#define CS_EXTENDED_ID      0xC         /* Extended ID failed. */
#define CS_IDE_MSG          0xD         /* Target rejected IDE msg. */
#define CS_ABORT_MSG        0xE         /* Target rejected abort msg. */
#define CS_REJECT_MSG       0xF         /* Target rejected reject msg. */
#define CS_NOP_MSG          0x10        /* Target rejected NOP msg. */
#define CS_PARITY_MSG       0x11        /* Target rejected parity msg. */
#define CS_DEV_RESET_MSG    0x12        /* Target rejected dev rst msg. */
#define CS_ID_MSG           0x13        /* Target rejected ID msg. */
#define CS_FREE             0x14        /* Unexpected bus free. */
#define CS_DATA_UNDERRUN    0x15        /* Data Underrun. */
#define CS_TRANACTION_1     0x18        /* Transaction error 1 */
#define CS_TRANACTION_2     0x19        /* Transaction error 2 */
#define CS_TRANACTION_3     0x1a        /* Transaction error 3 */
#define CS_INV_ENTRY_TYPE   0x1b        /* Invalid entry type */
#define CS_DEV_QUEUE_FULL   0x1c        /* Device queue full */
#define CS_PHASED_SKIPPED   0x1d        /* SCSI phase skipped */
#define CS_ARS_FAILED       0x1e        /* ARS failed */
#define CS_LVD_BUS_ERROR    0x21        /* LVD bus error */
#define CS_BAD_PAYLOAD      0x80        /* Driver defined */
#define CS_UNKNOWN          0x81        /* Driver defined */
#define CS_RETRY            0x82        /* Driver defined */

/*
 * ISP status entry - SCSI status byte bit definitions.
 */
#define SS_CHECK_CONDITION  BIT_1
#define SS_CONDITION_MET    BIT_2
#define SS_BUSY_CONDITION   BIT_3
#define SS_RESERVE_CONFLICT (BIT_4 | BIT_3)

/*
 * ISP target entries - Option flags bit definitions.
 */
#define OF_ENABLE_TAG       BIT_1       /* Tagged queue action enable */
#define OF_DATA_IN          BIT_6       /* Data in to initiator */
                                        /*  (data from target to initiator) */
#define OF_DATA_OUT         BIT_7       /* Data out from initiator */
                                        /*  (data from initiator to target) */
#define OF_NO_DATA          (BIT_7 | BIT_6)
#define OF_DISC_DISABLED    BIT_15      /* Disconnects disabled */
#define OF_DISABLE_SDP      BIT_24      /* Disable sending save data ptr */
#define OF_SEND_RDP         BIT_26      /* Send restore data pointers msg */
#define OF_FORCE_DISC       BIT_30      /* Disconnects mandatory */
#define OF_SSTS             BIT_31      /* Send SCSI status */

#if QL1280_TARGET_MODE_SUPPORT
/*
 * Target Read/Write buffer structure.
 */
#define TARGET_DATA_OFFSET  4
#define TARGET_DATA_SIZE    0x2000      /* 8K */
#define TARGET_INQ_OFFSET   (TARGET_DATA_OFFSET + TARGET_DATA_SIZE)
#define TARGET_SENSE_SIZE   18
#define TARGET_BUF_SIZE     36

typedef struct
{
    uint8_t         hdr[4];
    uint8_t         data[TARGET_DATA_SIZE];
    struct ident    inq;
}tgt_t;
#endif

/*
 * BUS parameters/settings structure
 */
typedef struct
{
    uint8_t     id;                    /* Host adapter SCSI id */
    uint8_t     bus_reset_delay;       /* SCSI bus reset delay. */
    uint8_t     failed_reset_count;    /* number of time reset failed */
	uint8_t     unused;
    uint16_t    device_enables;        /* Device enable bits. */
    uint16_t    lun_disables;          /* LUN disable bits. */
    uint16_t    qtag_enables;          /* Tag queue enables. */
    uint16_t    hiwat;                 /* High water mark per device. */
    uint8_t     reset_marker       :1;
    uint8_t     disable_scsi_reset :1;
    uint8_t     scsi_bus_dead      :1; /* SCSI Bus is Dead, when 5 back to back resets failed */

}bus_param_t;

/*
 * Linux Host Adapter structure
 */
typedef struct scsi_qla_host
{
    /* Linux adapter configuration data */
    struct Scsi_Host *host;             /* pointer to host data */
    struct scsi_qla_host   *next;
    device_reg_t     *iobase;           /* Base Memory-mapped I/O address */
    uint8_t          pci_bus;
    uint8_t          pci_device_fn;
    uint8_t          devnum;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,95)
    struct pci_dev *pdev;
#endif
    volatile unsigned char  *mmpbase;      /* memory mapped address */
    unsigned long            host_no;
    unsigned long            instance;
    uint8_t           revision;
    uint8_t           ports;
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,1,0)
    spinlock_t               spin_lock;
#endif
    volatile unsigned char   cpu_lock_count[NR_CPUS];
    unsigned long            actthreads;
    unsigned long            qthreads;
    unsigned long            isr_count;        /* Interrupt count */
    unsigned long            spurious_int;

    uint32_t           device_id;

    /* Outstandings ISP commands. */
    srb_t           *outstanding_cmds[MAX_OUTSTANDING_COMMANDS];

    /* BUS configuration data */
    bus_param_t bus_settings[MAX_BUSES];

    /* Device LUN queues. */
    scsi_lu_t       *dev[MAX_EQ];      /* Logical unit queues */

#ifdef UNUSED
    /* Interrupt lock, and data */
    uint8_t          intr_lock;         /* Lock for interrupt locking */
#endif

    /* bottom half run queue */
    struct tq_struct run_qla_bh;

    /* Received ISP mailbox data. */
    volatile uint16_t mailbox_out[MAILBOX_REGISTER_COUNT];

#ifdef UNUSED
    /* ISP ring lock, rings, and indexes */
    uint8_t          ring_lock;         /* ISP ring lock */
    struct timer_list        dev_timer[MAX_TARGETS];
#endif

    request_t       req[REQUEST_ENTRY_CNT+1];
    response_t      res[RESPONSE_ENTRY_CNT+1];
    unsigned long   request_dma;        /* Physical address. */
    request_t       *request_ring;      /* Base virtual address */
    request_t       *request_ring_ptr;  /* Current address. */
    uint16_t        req_ring_index;     /* Current index. */
    uint16_t        req_q_cnt;          /* Number of available entries. */

    unsigned long   response_dma;       /* Physical address. */
    response_t      *response_ring;     /* Base virtual address */
    response_t      *response_ring_ptr; /* Current address. */
    uint16_t        rsp_ring_index;     /* Current index. */

#if QL1280_TARGET_MODE_SUPPORT
    /* Target buffer and sense data. */
    uint32_t        tbuf_dma;           /* Physical address. */
    tgt_t           *tbuf;
    uint32_t        tsense_dma;         /* Physical address. */
    uint8_t         *tsense;
#endif

#if  WATCHDOGTIMER
    /* Watchdog queue, lock and total timer */
    uint8_t          watchdog_q_lock;   /* Lock for watchdog queue */
    srb_t           *wdg_q_first;       /* First job on watchdog queue */
    srb_t           *wdg_q_last;        /* Last job on watchdog queue */
    uint32_t         total_timeout;     /* Total timeout (quantum count) */
    uint32_t         watchdogactive;
#endif

    srb_t           *done_q_first;       /* First job on done queue */
    srb_t           *done_q_last;        /* Last job on done queue */

    volatile struct
    {
        uint32_t     watchdog_enabled        :1;   /* 0 */
        uint32_t     mbox_int                :1;   /* 1 */
        uint32_t     mbox_busy               :1;   /* 2 */
        ui