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#ifndef __MEGARAID_H__
#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 BOARD_QUARTZ 0x08000000L
#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
#define MEGA_CMD_TIMEOUT 10
#define MAX_SGLIST 17
#define MAX_COMMANDS 250
#define MAX_CMD_PER_LUN 63
#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)
/* Define AMI's PCI codes */
#undef PCI_VENDOR_ID_AMI
#undef PCI_DEVICE_ID_AMI_MEGARAID
#ifndef PCI_VENDOR_ID_AMI
#define PCI_VENDOR_ID_AMI 0x101E
#define PCI_DEVICE_ID_AMI_MEGARAID 0x9010
#endif
#define PCI_CONF_BASE_ADDR_OFFSET 0x10
#define PCI_CONF_IRQ_OFFSET 0x3c
#define PCI_CONF_AMISIG 0xa0
#define AMI_SIGNATURE 0x3344
#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
/* Structures */
typedef struct _mega_ADP_INFO {
u_char MaxConcCmds;
u_char RbldRate;
u_char MaxTargPerChan;
u_char ChanPresent;
u_char FwVer[4];
u_short AgeOfFlash;
u_char ChipSet;
u_char DRAMSize;
u_char CacheFlushInterval;
u_char BiosVer[4];
u_char resvd[7];
} mega_ADP_INFO;
typedef struct _mega_LDRV_INFO {
u_char NumLDrv;
u_char resvd[3];
u_long LDrvSize[MAX_LOGICAL_DRIVES];
u_char LDrvProp[MAX_LOGICAL_DRIVES];
u_char LDrvState[MAX_LOGICAL_DRIVES];
} mega_LDRV_INFO;
typedef struct _mega_PDRV_INFO {
u_char PDrvState[MAX_PHYSICAL_DRIVES];
u_char 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 {
u_char timeout:3; /* 0=6sec/1=60sec/2=10min/3=3hrs */
u_char ars:1;
u_char reserved:3;
u_char islogical:1;
u_char logdrv; /* if islogical == 1 */
u_char channel; /* if islogical == 0 */
u_char target; /* if islogical == 0 */
u_char queuetag; /* unused */
u_char queueaction; /* unused */
u_char cdb[MAX_CDB_LEN];
u_char cdblen;
u_char reqsenselen;
u_char reqsensearea[MAX_REQ_SENSE_LEN];
u_char numsgelements;
u_char scsistatus;
u_long dataxferaddr;
u_long dataxferlen;
} mega_passthru;
typedef struct _mega_mailbox {
/* 0x0 */ u_char cmd;
/* 0x1 */ u_char cmdid;
/* 0x2 */ u_short numsectors;
/* 0x4 */ u_long lba;
/* 0x8 */ u_long xferaddr;
/* 0xC */ u_char logdrv;
/* 0xD */ u_char numsgelements;
/* 0xE */ u_char resvd;
/* 0xF */ u_char busy;
/* 0x10 */ u_char numstatus;
/* 0x11 */ u_char status;
/* 0x12 */ u_char completed[46];
u_char mraid_poll;
u_char mraid_ack;
u_char pad[16];
} mega_mailbox;
typedef struct _mega_ioctl_mbox {
/* 0x0 */ u_char cmd;
/* 0x1 */ u_char cmdid;
/* 0x2 */ u_char channel;
/* 0x3 */ u_char param;
/* 0x4 */ u_char pad[4];
/* 0x8 */ u_long xferaddr;
/* 0xC */ u_char logdrv;
/* 0xD */ u_char numsgelements;
/* 0xE */ u_char resvd;
/* 0xF */ u_char busy;
/* 0x10 */ u_char numstatus;
/* 0x11 */ u_char status;
/* 0x12 */ u_char completed[46];
u_char mraid_poll;
u_char mraid_ack;
u_char malign[16];
} mega_ioctl_mbox;
typedef struct _mega_sglist {
u_long address;
u_long length;
} mega_sglist;
/* Queued command data */
typedef struct _mega_scb mega_scb;
struct _mega_scb {
int idx;
u_long state;
u_long isrcount;
u_char mboxData[16];
mega_passthru pthru;
Scsi_Cmnd *SCpnt;
mega_sglist *sgList;
mega_scb *next;
};
/* Per-controller data */
typedef struct _mega_host_config {
u_char numldrv;
u_long flag;
u_long base;
mega_scb *qFree;
mega_scb *qPending;
u_long nReads[MAX_LOGICAL_DRIVES];
u_long nWrites[MAX_LOGICAL_DRIVES];
/* Host adapter parameters */
u_char fwVer[7];
u_char biosVer[7];
struct Scsi_Host *host;
/* The following must be DMA-able!! */
volatile mega_mailbox *mbox;
volatile mega_mailbox mailbox;
volatile u_char mega_buffer[2 * 1024L];
u_char max_cmds;
mega_scb scbList[MAX_COMMANDS];
} mega_host_config;
extern struct proc_dir_entry proc_scsi_megaraid;
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);
#endif
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