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#define __MEGARAID_H__
#ifndef LINUX_VERSION_CODE
#include <linux/version.h>
#endif
#define IN_ISR 0x80000000L
#define IN_ABORT 0x40000000L
#define IN_RESET 0x20000000L
#define IN_QUEUE 0x10000000L
#define BOARD_QUARTZ 0x08000000L
#define BOARD_40LD 0x04000000L
#define SCB_FREE 0x0
#define SCB_ACTIVE 0x1
#define SCB_WAITQ 0x2
#define SCB_ISSUED 0x3
#define SCB_COMPLETE 0x4
#define SCB_ABORTED 0x5
#define SCB_RESET 0x6
/* IOCTL DRIVER INFO */
#define DRIVER_IOCTL_INTERFACE 0x82
/* Methods */
#define GET_DRIVER_INFO 1
#define MEGA_CMD_TIMEOUT 10
/* Feel free to fiddle with these.. max values are:
SGLIST 0..26
COMMANDS 0..253
CMDPERLUN 0..63
*/
#define MAX_SGLIST 0x1A
#define MAX_COMMANDS 127
#define MAX_CMD_PER_LUN 63
#define MAX_FIRMWARE_STATUS 46
#define MAX_LOGICAL_DRIVES 8
#define MAX_CHANNEL 5
#define MAX_TARGET 15
#define MAX_PHYSICAL_DRIVES MAX_CHANNEL*MAX_TARGET
#define INQUIRY_DATA_SIZE 0x24
#define MAX_CDB_LEN 0x0A
#define MAX_REQ_SENSE_LEN 0x20
#define INTR_VALID 0x40
/* Mailbox commands */
#define MEGA_MBOXCMD_LREAD 0x01
#define MEGA_MBOXCMD_LWRITE 0x02
#define MEGA_MBOXCMD_PASSTHRU 0x03
#define MEGA_MBOXCMD_ADAPTERINQ 0x05
/* Offsets into Mailbox */
#define COMMAND_PORT 0x00
#define COMMAND_ID_PORT 0x01
#define SG_LIST_PORT0 0x08
#define SG_LIST_PORT1 0x09
#define SG_LIST_PORT2 0x0a
#define SG_LIST_PORT3 0x0b
#define SG_ELEMENT_PORT 0x0d
#define NO_FIRED_PORT 0x0f
/* I/O Port offsets */
#define I_CMD_PORT 0x00
#define I_ACK_PORT 0x00
#define I_TOGGLE_PORT 0x01
#define INTR_PORT 0x0a
#define MAILBOX_SIZE (sizeof(mega_mailbox)-16)
#define MBOX_BUSY_PORT 0x00
#define MBOX_PORT0 0x04
#define MBOX_PORT1 0x05
#define MBOX_PORT2 0x06
#define MBOX_PORT3 0x07
#define ENABLE_MBOX_REGION 0x0B
/* I/O Port Values */
#define ISSUE_BYTE 0x10
#define ACK_BYTE 0x08
#define ENABLE_INTR_BYTE 0xc0
#define DISABLE_INTR_BYTE 0x00
#define VALID_INTR_BYTE 0x40
#define MBOX_BUSY_BYTE 0x10
#define ENABLE_MBOX_BYTE 0x00
/* Setup some port macros here */
#define WRITE_MAILBOX(base,offset,value) *(base+offset)=value
#define READ_MAILBOX(base,offset) *(base+offset)
#define WRITE_PORT(base,offset,value) outb_p(value,base+offset)
#define READ_PORT(base,offset) inb_p(base+offset)
#define ISSUE_COMMAND(base) WRITE_PORT(base,I_CMD_PORT,ISSUE_BYTE)
#define CLEAR_INTR(base) WRITE_PORT(base,I_ACK_PORT,ACK_BYTE)
#define ENABLE_INTR(base) WRITE_PORT(base,I_TOGGLE_PORT,ENABLE_INTR_BYTE)
#define DISABLE_INTR(base) WRITE_PORT(base,I_TOGGLE_PORT,DISABLE_INTR_BYTE)
/* Special Adapter Commands */
#define FW_FIRE_WRITE 0x2C
#define FW_FIRE_FLASH 0x2D
#define FC_NEW_CONFIG 0xA1
#define DCMD_FC_CMD 0xA1
#define DCMD_FC_PROCEED 0x02
#define DCMD_DELETE_LOGDRV 0x03
#define DCMD_FC_READ_NVRAM_CONFIG 0x04
#define DCMD_FC_READ_FINAL_CONFIG 0x05
#define DCMD_GET_DISK_CONFIG 0x06
#define DCMD_CHANGE_LDNO 0x07
#define DCMD_COMPACT_CONFIG 0x08
#define DCMD_DELETE_DRIVEGROUP 0x09
#define DCMD_GET_LOOPID_INFO 0x0A
#define DCMD_CHANGE_LOOPID 0x0B
#define DCMD_GET_NUM_SCSI_CHANS 0x0C
#define DCMD_WRITE_CONFIG 0x0D /* writes 40-ld config */
#define NC_SUBOP_PRODUCT_INFO 0x0E
#define NC_SUBOP_ENQUIRY3 0x0F
#define ENQ3_GET_SOLICITED_NOTIFY_ONLY 0x01
#define ENQ3_GET_SOLICITED_FULL 0x02
#define ENQ3_GET_UNSOLICITED 0x03
/* Define AMI's PCI codes */
#undef PCI_VENDOR_ID_AMI
#undef PCI_DEVICE_ID_AMI_MEGARAID
#undef PCI_DEVICE_ID_AMI_MEGARAID2
#undef PCI_DEVICE_ID_AMI_MEGARAID3
#ifndef PCI_VENDOR_ID_AMI
#define PCI_VENDOR_ID_AMI 0x101E
#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
#define PCI_DEVICE_ID_AMI_MEGARAID2 0x9060
#define PCI_DEVICE_ID_AMI_MEGARAID3 0x1960
#endif
#define PCI_CONF_BASE_ADDR_OFFSET 0x10
#define PCI_CONF_IRQ_OFFSET 0x3c
#define PCI_CONF_AMISIG 0xa0
#define AMI_SIGNATURE 0x3344
#define AMI_SIGNATURE_471 0xCCCC
#if LINUX_VERSION_CODE < 0x20100
#define MEGARAID \
{ NULL, /* Next */\
NULL, /* Usage Count Pointer */\
NULL, /* /proc Directory Entry */\
megaraid_proc_info, /* /proc Info Function */\
"MegaRAID", /* Driver Name */\
megaraid_detect, /* Detect Host Adapter */\
megaraid_release, /* Release Host Adapter */\
megaraid_info, /* Driver Info Function */\
megaraid_command, /* Command Function */\
megaraid_queue, /* Queue Command Function */\
megaraid_abort, /* Abort Command Function */\
megaraid_reset, /* Reset Command Function */\
NULL, /* Slave Attach Function */\
megaraid_biosparam, /* Disk BIOS Parameters */\
MAX_COMMANDS, /* # of cmds that can be\
outstanding at any time */\
7, /* HBA Target ID */\
MAX_SGLIST, /* Scatter/Gather Table Size */\
MAX_CMD_PER_LUN, /* SCSI Commands per LUN */\
0, /* Present */\
0, /* Default Unchecked ISA DMA */\
ENABLE_CLUSTERING } /* Enable Clustering */
#else
#define MEGARAID \
{\
name: "MegaRAID", /* Driver Name */\
proc_info: megaraid_proc_info, /* /proc driver info */\
detect: megaraid_detect, /* Detect Host Adapter */\
release: megaraid_release, /* Release Host Adapter */\
info: megaraid_info, /* Driver Info Function */\
command: megaraid_command, /* Command Function */\
queuecommand: megaraid_queue, /* Queue Command Function */\
abort: megaraid_abort, /* Abort Command Function */\
reset: megaraid_reset, /* Reset Command Function */\
bios_param: megaraid_biosparam, /* Disk BIOS Parameters */\
can_queue: MAX_COMMANDS, /* Can Queue */\
this_id: 7, /* HBA Target ID */\
sg_tablesize: MAX_SGLIST, /* Scatter/Gather Table Size */\
cmd_per_lun: MAX_CMD_PER_LUN, /* SCSI Commands per LUN */\
present: 0, /* Present */\
unchecked_isa_dma:0, /* Default Unchecked ISA DMA */\
use_clustering: ENABLE_CLUSTERING /* Enable Clustering */\
}
#endif
/***********************************************************************
* Structure Declarations for the Firmware supporting 40 Logical Drives
* and 256 Physical Drives.
***********************************************************************/
#define FC_MAX_LOGICAL_DRIVES 40
#define FC_MAX_LOG_DEVICES FC_MAX_LOGICAL_DRIVES
#define FC_MAX_SPAN_DEPTH 8
#define FC_MAX_ROW_SIZE 32
#define FC_MAX_CHANNELS 16
#define FC_MAX_TARGETS_PER_CHANNEL 16
#define FC_MAX_PHYSICAL_DEVICES 256
#define FC_NEW_CONFIG 0xA1
#define DCMD_FC_CMD 0xA1
#define NC_SUBOP_PRODUCT_INFO 0x0E
#define NC_SUBOP_ENQUIRY3 0x0F
#define ENQ3_GET_SOLICITED_NOTIFY_ONLY 0x01
#define ENQ3_GET_SOLICITED_FULL 0x02
#define ENQ3_GET_UNSOLICITED 0x03
/********************************************
* PRODUCT_INFO Strucure
********************************************/
#define SIG_40LOG_32STR_8SPN 0x00282008
/*
* Utilities declare this strcture size as 1024 bytes. So more fields can
* be added in future.
*/
struct MRaidProductInfo
{
u32 DataSize; /* current size in bytes (not including resvd) */
u32 ConfigSignature;
/* Current value is 0x00282008
* 0x28=MAX_LOGICAL_DRIVES,
* 0x20=Number of stripes and
* 0x08=Number of spans */
u8 FwVer[16]; /* printable ASCI string */
u8 BiosVer[16]; /* printable ASCI string */
u8 ProductName[80]; /* printable ASCI string */
u8 MaxConcCmds; /* Max. concurrent commands supported */
u8 SCSIChanPresent; /* Number of SCSI Channels detected */
u8 FCLoopPresent; /* Number of Fibre Loops detected */
u8 memType; /* EDO, FPM, SDRAM etc */
u32 signature;
u16 DramSize; /* In terms of MB */
u16 subSystemID;
u16 subSystemVendorID;
u8 numNotifyCounters;
u8 pad1k[889]; /* 135 + 889 resvd = 1024 total size */
}__attribute__((packed));
typedef struct MRaidProductInfo megaRaidProductInfo;
/********************************************
* Standard ENQUIRY Strucure
********************************************/
struct FC_ADP_INFO
{
u8 MaxConcCmds; /* Max. concurrent commands supported. */
u8 RbldRate; /* Rebuild Rate. Varies from 0%-100% */
u8 MaxTargPerChan; /* Max. Targets supported per chan. */
u8 ChanPresent; /* No. of Chans present on this adapter. */
u8 FwVer[4]; /* Firmware version. */
u16 AgeOfFlash; /* No. of times FW has been downloaded. */
u8 ChipSetValue; /* Contents of 0xC0000832 */
u8 DramSize; /* In terms of MB */
u8 CacheFlushInterval; /* In terms of Seconds */
u8 BiosVersion[4];
u8 BoardType;
u8 sense_alert;
u8 write_config_count; /* Increase with evry configuration change */
u8 drive_inserted_count; /* Increase with every drive inserted */
u8 inserted_drive; /* Channel: Id of inserted drive */
u8 battery_status;
/*
BIT 0 : battery module missing
BIT 1 : VBAD
BIT 2 : temp high
BIT 3 : battery pack missing
BIT 4,5 : 00 - charge complete
01 - fast charge in prog
10 - fast charge fail
11 - undefined
BIt 6 : counter > 1000
Bit 7 : undefined
*/
u8 dec_fault_bus_info; /* was resvd */
}__attribute__((packed));
struct FC_LDRV_INFO
{
u8 NumLDrv; /* No. of Log. Drvs configured. */
u8 recon_state[FC_MAX_LOGICAL_DRIVES/8];
/* bit field for State of reconstruct */
u16 LDrvOpStatus[FC_MAX_LOGICAL_DRIVES/8];
/* bit field Status of Long Operations. */
u32 LDrvSize[FC_MAX_LOGICAL_DRIVES]; /* Size of each log. Drv. */
u8 LDrvProp[FC_MAX_LOGICAL_DRIVES];
u8 LDrvState[FC_MAX_LOGICAL_DRIVES]; /* State of Logical Drives. */
}__attribute__((packed));
#define PREVSTAT_MASK 0xf0
#define CURRSTAT_MASK 0x0f
struct FC_PDRV_INFO
{
u8 PDrvState[FC_MAX_PHYSICAL_DEVICES]; /* State of Phys Drvs. */
}__attribute__((packed));
struct FC_AdapterInq
{
struct FC_ADP_INFO AdpInfo;
struct FC_LDRV_INFO LogdrvInfo;
struct FC_PDRV_INFO PhysdrvInfo;
}__attribute__((packed));
typedef struct FC_AdapterInq mega_RAIDINQ_FC;
/********************************************
* NOTIFICATION Strucure
********************************************/
#define MAX_NOTIFY_SIZE 0x80
#define CUR_NOTIFY_SIZE sizeof(struct MegaRAID_Notify)
/*
* Utilities declare this strcture size as ?? bytes. So more fields can
* be added in future.
*/
struct MegaRAID_Notify
{
u32 globalCounter; /* Any change increments this counter */
u8 paramCounter; /* Indicates any params changed */
u8 paramId; /* Param modified - defined below */
u16 paramVal; /* New val of last param modified */
u8 writeConfigCounter; /* write config occurred */
u8 writeConfigRsvd[3];
u8 ldrvOpCounter; /* Indicates ldrv op started/completed */
u8 ldrvOpId; /* ldrv num */
u8 ldrvOpCmd; /* ldrv operation - defined below */
u8 ldrvOpStatus; /* status of the operation */
u8 ldrvStateCounter; /* Indicates change of ldrv state */
u8 ldrvStateId; /* ldrv num */
u8 ldrvStateNew; /* New state */
u8 ldrvStateOld; /* old state */
u8 pdrvStateCounter; /* Indicates change of ldrv state */
u8 pdrvStateId; /* pdrv id */
u8 pdrvStateNew; /* New state */
u8 pdrvStateOld; /* old state */
u8 pdrvFmtCounter; /* Indicates pdrv format started/over */
u8 pdrvFmtId; /* pdrv id */
u8 pdrvFmtVal; /* format started/over */
u8 pdrvFmtRsvd;
u8 targXferCounter; /* Indicates SCSI-2 Xfer rate change */
u8 targXferId; /* pdrv Id */
u8 targXferVal; /* new Xfer params of last pdrv */
u8 targXferRsvd;
u8 fcLoopIdChgCounter; /* Indicates loopid changed */
u8 fcLoopIdPdrvId; /* pdrv id */
u8 fcLoopId0; /* loopid on fc loop 0 */
u8 fcLoopId1; /* loopid on fc loop 1 */
u8 fcLoopStateCounter; /* Indicates loop state changed */
u8 fcLoopState0; /* state of fc loop 0 */
u8 fcLoopState1; /* state of fc loop 1 */
u8 fcLoopStateRsvd;
}__attribute__((packed));
/********************************************
* PARAM IDs in Notify struct
********************************************/
#define PARAM_RBLD_RATE 0x01
/*--------------------------------------
* Param val =
* byte 0: new rbld rate
*--------------------------------------*/
#define PARAM_CACHE_FLUSH_INTERVAL 0x02
/*--------------------------------------
* Param val =
* byte 0: new cache flush interval
*--------------------------------------*/
#define PARAM_SENSE_ALERT 0x03
/*--------------------------------------
* Param val =
* byte 0: last pdrv id causing chkcond
*--------------------------------------*/
#define PARAM_DRIVE_INSERTED 0x04
/*--------------------------------------
* Param val =
* byte 0: last pdrv id inserted
*--------------------------------------*/
#define PARAM_BATTERY_STATUS 0x05
/*--------------------------------------
* Param val =
* byte 0: battery status
*--------------------------------------*/
/********************************************
* Ldrv operation cmd in Notify struct
********************************************/
#define LDRV_CMD_CHKCONSISTANCY 0x01
#define LDRV_CMD_INITIALIZE 0x02
#define LDRV_CMD_RECONSTRUCTION 0x03
/********************************************
* Ldrv operation status in Notify struct
********************************************/
#define LDRV_OP_SUCCESS 0x00
#define LDRV_OP_FAILED 0x01
#define LDRV_OP_ABORTED 0x02
#define LDRV_OP_CORRECTED 0x03
#define LDRV_OP_STARTED 0x04
/********************************************
* Raid Logical drive states.
********************************************/
#define RDRV_OFFLINE 0
#define RDRV_DEGRADED 1
#define RDRV_OPTIMAL 2
#define RDRV_DELETED 3
/*******************************************
* Physical drive states.
*******************************************/
#define PDRV_UNCNF 0
#define PDRV_ONLINE 3
#define PDRV_FAILED 4
#define PDRV_RBLD 5
/* #define PDRV_HOTSPARE 6 */
/*******************************************
* Formal val in Notify struct
*******************************************/
#define PDRV_FMT_START 0x01
#define PDRV_FMT_OVER 0x02
/********************************************
* FC Loop State in Notify Struct
********************************************/
#define ENQ_FCLOOP_FAILED 0
#define ENQ_FCLOOP_ACTIVE 1
#define ENQ_FCLOOP_TRANSIENT 2
/********************************************
* ENQUIRY3 Strucure
********************************************/
/*
* Utilities declare this strcture size as 1024 bytes. So more fields can
* be added in future.
*/
struct MegaRAID_Enquiry3
{
u32 dataSize; /* current size in bytes (not including resvd) */
struct MegaRAID_Notify notify;
u8 notifyRsvd[MAX_NOTIFY_SIZE - CUR_NOTIFY_SIZE];
u8 rbldRate; /* Rebuild rate (0% - 100%) */
u8 cacheFlushInterval; /* In terms of Seconds */
u8 senseAlert;
u8 driveInsertedCount; /* drive insertion count */
u8 batteryStatus;
u8 numLDrv; /* No. of Log Drives configured */
u8 reconState[FC_MAX_LOGICAL_DRIVES/8]; /* State of reconstruct */
u16 lDrvOpStatus[FC_MAX_LOGICAL_DRIVES/8]; /* log. Drv Status */
u32 lDrvSize[FC_MAX_LOGICAL_DRIVES]; /* Size of each log. Drv */
u8 lDrvProp[FC_MAX_LOGICAL_DRIVES];
u8 lDrvState[FC_MAX_LOGICAL_DRIVES]; /* State of Logical Drives */
u8 pDrvState[FC_MAX_PHYSICAL_DEVICES]; /* State of Phys. Drvs. */
u16 physDrvFormat[FC_MAX_PHYSICAL_DEVICES/16];
u8 targXfer[80]; /* phys device transfer rate */
u8 pad1k[263]; /* 761 + 263reserved = 1024 bytes total size */
}__attribute__((packed));
typedef struct MegaRAID_Enquiry3 mega_Enquiry3;
/* Structures */
typedef struct _mega_ADP_INFO {
u8 MaxConcCmds;
u8 RbldRate;
u8 MaxTargPerChan;
u8 ChanPresent;
u8 FwVer[4];
u16 AgeOfFlash;
u8 ChipSetValue;
u8 DramSize;
u8 CacheFlushInterval;
u8 BiosVer[4];
u8 resvd[7];
} mega_ADP_INFO;
typedef struct _mega_LDRV_INFO {
u8 NumLDrv;
u8 resvd[3];
u32 LDrvSize[MAX_LOGICAL_DRIVES];
u8 LDrvProp[MAX_LOGICAL_DRIVES];
u8 LDrvState[MAX_LOGICAL_DRIVES];
} mega_LDRV_INFO;
typedef struct _mega_PDRV_INFO {
u8 PDrvState[MAX_PHYSICAL_DRIVES];
u8 resvd;
} mega_PDRV_INFO;
// RAID inquiry: Mailbox command 0x5
typedef struct _mega_RAIDINQ {
mega_ADP_INFO AdpInfo;
mega_LDRV_INFO LogdrvInfo;
mega_PDRV_INFO PhysdrvInfo;
} mega_RAIDINQ;
// Passthrough command: Mailbox command 0x3
typedef struct mega_passthru {
u8 timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
u8 ars:1;
u8 reserved:3;
u8 islogical:1;
u8 logdrv; /* if islogical == 1 */
u8 channel; /* if islogical == 0 */
u8 target; /* if islogical == 0 */
u8 queuetag; /* unused */
u8 queueaction; /* unused */
u8 cdb[MAX_CDB_LEN];
u8 cdblen;
u8 reqsenselen;
u8 reqsensearea[MAX_REQ_SENSE_LEN];
u8 numsgelements;
u8 scsistatus;
u32 dataxferaddr;
u32 dataxferlen;
} mega_passthru;
struct _mega_mailbox {
/* 0x0 */ u8 cmd;
/* 0x1 */ u8 cmdid;
/* 0x2 */ u16 numsectors;
/* 0x4 */ u32 lba;
/* 0x8 */ u32 xferaddr;
/* 0xC */ u8 logdrv;
/* 0xD */ u8 numsgelements;
/* 0xE */ u8 resvd;
/* 0xF */ u8 busy;
/* 0x10 */ u8 numstatus;
/* 0x11 */ u8 status;
/* 0x12 */ u8 completed[46];
volatile u8 mraid_poll;
volatile u8 mraid_ack;
u8 pad[16]; /* for alignment purposes */
}__attribute__((packed));
typedef struct _mega_mailbox mega_mailbox;
typedef struct {
u32 xferSegment; /* for 64-bit controllers */
mega_mailbox mailbox;
} mega_mailbox64;
typedef struct _mega_ioctl_mbox {
/* 0x0 */ u8 cmd;
/* 0x1 */ u8 cmdid;
/* 0x2 */ u8 channel;
/* 0x3 */ u8 param;
/* 0x4 */ u8 pad[4];
/* 0x8 */ u32 xferaddr;
/* 0xC */ u8 logdrv;
/* 0xD */ u8 numsgelements;
/* 0xE */ u8 resvd;
/* 0xF */ u8 busy;
/* 0x10 */ u8 numstatus;
/* 0x11 */ u8 status;
/* 0x12 */ u8 completed[46];
u8 mraid_poll;
u8 mraid_ack;
u8 malign[16];
} mega_ioctl_mbox;
typedef struct _mega_sglist {
u32 address;
u32 length;
} mega_sglist;
/* Queued command data */
typedef struct _mega_scb mega_scb;
struct _mega_scb {
int idx;
u32 state;
u32 isrcount;
u8 mboxData[16];
mega_passthru pthru;
Scsi_Cmnd *SCpnt;
mega_sglist *sgList;
struct semaphore ioctl_sem;
void *buff_ptr;
u32 iDataSize;
mega_scb *next;
};
/* Per-controller data */
typedef struct _mega_host_config {
u8 numldrv;
u32 flag;
#ifdef __LP64__
u64 base;
#else
u32 base;
#endif
mega_scb *qFreeH;
mega_scb *qFreeT;
mega_scb *qPendingH;
mega_scb *qPendingT;
Scsi_Cmnd *qCompletedH;
Scsi_Cmnd *qCompletedT;
u32 qFcnt;
u32 qPcnt;
u32 qCcnt;
u32 nReads[FC_MAX_LOGICAL_DRIVES];
u32 nReadBlocks[FC_MAX_LOGICAL_DRIVES];
u32 nWrites[FC_MAX_LOGICAL_DRIVES];
u32 nWriteBlocks[FC_MAX_LOGICAL_DRIVES];
u32 nInterrupts;
/* Host adapter parameters */
u8 fwVer[7];
u8 biosVer[7];
struct Scsi_Host *host;
volatile mega_mailbox64 *mbox64; /* ptr to beginning of 64-bit mailbox */
volatile mega_mailbox *mbox; /* ptr to beginning of standard mailbox */
volatile mega_mailbox64 mailbox64;
#if 0
volatile union {
u8 generic_buffer[2 * 1024L];
mega_RAIDINQ adapterInfoData;
mega_Enquiry3 enquiry3Data;
}mega_buffer;
#else
volatile u8 mega_buffer[2*1024L];
#endif
volatile megaRaidProductInfo productInfo;
u8 max_cmds;
mega_scb scbList[MAX_COMMANDS];
#define PROCBUFSIZE 4096
char procbuf[PROCBUFSIZE];
int procidx;
struct proc_dir_entry *controller_proc_dir_entry;
struct proc_dir_entry *proc_read, *proc_stat, *proc_status, *proc_mbox;
} mega_host_config;
typedef struct _driver_info {
int size;
ulong version;
} mega_driver_info;
#if LINUX_VERSION_CODE < 0x20300
extern struct proc_dir_entry proc_scsi_megaraid;
#endif
const char *megaraid_info(struct Scsi_Host *);
int megaraid_detect(Scsi_Host_Template *);
int megaraid_release(struct Scsi_Host *);
int megaraid_command(Scsi_Cmnd *);
int megaraid_abort(Scsi_Cmnd *);
int megaraid_reset(Scsi_Cmnd *, unsigned int);
int megaraid_queue(Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
int megaraid_biosparam(Disk *, kdev_t, int *);
int megaraid_proc_info(char *buffer, char **start, off_t offset,
int length, int hostno, int inout);
void mega_build_kernel_sg(char *, ulong , mega_scb *, mega_ioctl_mbox *);
void mega_create_proc_entry(int index, struct proc_dir_entry *);
#endif
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