* @nldrv	: Number of logical drives configured * @rsvd	: * @size	: size of each logical drive * @prop	: * @state	: state of each logical drive */typedef struct {	unsigned char		nldrv;	unsigned char		rsvd[3];	unsigned int	size[MAX_LOGICAL_DRIVES_8LD];	unsigned char		prop[MAX_LOGICAL_DRIVES_8LD];	unsigned char		state[MAX_LOGICAL_DRIVES_8LD];} __attribute__ ((packed)) mraid_ldrv_info_t;/** * mraid_pdrv_info_t - information about the physical drives * @pdrv_state	: state of each physical drive */typedef struct {	unsigned char		pdrv_state[MBOX_MAX_PHYSICAL_DRIVES];	unsigned char		rsvd;} __attribute__ ((packed)) mraid_pdrv_info_t;/** * mraid_inquiry_t - RAID inquiry, mailbox command 0x05 * @mraid_adapinfo_t	: adapter information * @mraid_ldrv_info_t	: logical drives information * @mraid_pdrv_info_t	: physical drives information */typedef struct {	mraid_adapinfo_t	adapter_info;	mraid_ldrv_info_t	logdrv_info;	mraid_pdrv_info_t	pdrv_info;} __attribute__ ((packed)) mraid_inquiry_t;/** * mraid_extinq_t - RAID extended inquiry, mailbox command 0x04 * * @raid_inq		: raid inquiry * @phys_drv_format	: * @stack_attn		: * @modem_status	: * @rsvd		: */typedef struct {	mraid_inquiry_t	raid_inq;	unsigned short	phys_drv_format[MAX_MBOX_CHANNELS];	unsigned char		stack_attn;	unsigned char		modem_status;	unsigned char		rsvd[2];} __attribute__ ((packed)) mraid_extinq_t;/** * adap_device_t - device information * @channel	: channel fpor the device * @target	: target ID of the device */typedef struct {	unsigned char		channel;	unsigned char		target;}__attribute__ ((packed)) adap_device_t;/** * adap_span_40ld_t - 40LD span * @start_blk	: starting block * @num_blks	: number of blocks */typedef struct {	unsigned int	start_blk;	unsigned int	num_blks;	adap_device_t	device[MAX_ROW_SIZE_40LD];}__attribute__ ((packed)) adap_span_40ld_t;/** * adap_span_8ld_t - 8LD span * @start_blk	: starting block * @num_blks	: number of blocks */typedef struct {	unsigned int	start_blk;	unsigned int	num_blks;	adap_device_t	device[MAX_ROW_SIZE_8LD];}__attribute__ ((packed)) adap_span_8ld_t;/** * logdrv_param_t - logical drives parameters * * @span_depth	: total number of spans * @level	: RAID level * @read_ahead	: read ahead, no read ahead, adaptive read ahead * @stripe_sz	: encoded stripe size * @status	: status of the logical drive * @write_mode	: write mode, write_through/write_back * @direct_io	: direct io or through cache * @row_size	: number of stripes in a row */typedef struct {	unsigned char		span_depth;	unsigned char		level;	unsigned char		read_ahead;	unsigned char		stripe_sz;	unsigned char		status;	unsigned char		write_mode;	unsigned char		direct_io;	unsigned char		row_size;} __attribute__ ((packed)) logdrv_param_t;/** * logdrv_40ld_t - logical drive definition for 40LD controllers * @lparam	: logical drives parameters * @span	: span */typedef struct {	logdrv_param_t		lparam;	adap_span_40ld_t	span[SPAN_DEPTH_8_SPANS];}__attribute__ ((packed)) logdrv_40ld_t;/** * logdrv_8ld_span8_t - logical drive definition for 8LD controllers * @lparam	: logical drives parameters * @span	: span * * 8-LD logical drive with upto 8 spans */typedef struct {	logdrv_param_t	lparam;	adap_span_8ld_t	span[SPAN_DEPTH_8_SPANS];}__attribute__ ((packed)) logdrv_8ld_span8_t;/** * logdrv_8ld_span4_t - logical drive definition for 8LD controllers * @lparam	: logical drives parameters * @span	: span * * 8-LD logical drive with upto 4 spans */typedef struct {	logdrv_param_t	lparam;	adap_span_8ld_t	span[SPAN_DEPTH_4_SPANS];}__attribute__ ((packed)) logdrv_8ld_span4_t;/** * phys_drive_t - physical device information * @type	: Type of the device * @cur_status	: current status of the device * @tag_depth	: Level of tagging * @sync_neg	: sync negotiation - ENABLE or DISBALE * @size	: configurable size in terms of 512 byte */typedef struct {	unsigned char		type;	unsigned char		cur_status;	unsigned char		tag_depth;	unsigned char		sync_neg;	unsigned int	size;}__attribute__ ((packed)) phys_drive_t;/** * disk_array_40ld_t - disk array for 40LD controllers * @numldrv	: number of logical drives * @resvd	: * @ldrv	: logical drives information * @pdrv	: physical drives information */typedef struct {	unsigned char		numldrv;	unsigned char		resvd[3];	logdrv_40ld_t	ldrv[MAX_LOGICAL_DRIVES_40LD];	phys_drive_t	pdrv[MBOX_MAX_PHYSICAL_DRIVES];}__attribute__ ((packed)) disk_array_40ld_t;/** * disk_array_8ld_span8_t - disk array for 8LD controllers * @numldrv	: number of logical drives * @resvd	: * @ldrv	: logical drives information * @pdrv	: physical drives information * * Disk array for 8LD logical drives with upto 8 spans */typedef struct {	unsigned char			numldrv;	unsigned char			resvd[3];	logdrv_8ld_span8_t	ldrv[MAX_LOGICAL_DRIVES_8LD];	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];}__attribute__ ((packed)) disk_array_8ld_span8_t;/** * disk_array_8ld_span4_t - disk array for 8LD controllers * @numldrv	: number of logical drives * @resvd	: * @ldrv	: logical drives information * @pdrv	: physical drives information * * Disk array for 8LD logical drives with upto 4 spans */typedef struct {	unsigned char			numldrv;	unsigned char			resvd[3];	logdrv_8ld_span4_t	ldrv[MAX_LOGICAL_DRIVES_8LD];	phys_drive_t		pdrv[MBOX_MAX_PHYSICAL_DRIVES];}__attribute__ ((packed)) disk_array_8ld_span4_t;/** * private_bios_data - bios private data for boot devices * @geometry	: bits 0-3 - BIOS geometry, 0x0001 - 1GB, 0x0010 - 2GB, *		0x1000 - 8GB, Others values are invalid * @unused	: bits 4-7 are unused * @boot_drv	: logical drive set as boot drive, 0..7 - for 8LD cards, * 		0..39 - for 40LD cards * @cksum	: 0-(sum of first 13 bytes of this structure) */struct private_bios_data {	unsigned char		geometry	:4;	unsigned char		unused		:4;	unsigned char		boot_drv;	unsigned char		rsvd[12];	unsigned short	cksum;} __attribute__ ((packed));/** * mbox_sgl64 - 64-bit scatter list for mailbox based controllers * @address     : address of the buffer * @length      : data transfer length */typedef struct {        unsigned long long        address;        unsigned int        length;} __attribute__ ((packed)) mbox_sgl64;/** * mbox_sgl32 - 32-bit scatter list for mailbox based controllers * @address	: address of the buffer * @length	: data transfer length */typedef struct {	unsigned int	address;	unsigned int	length;} __attribute__ ((packed)) mbox_sgl32;#define MEGASCSI_MAX_CHANNEL		4#define	MEGASCSI_MAX_PDRIVES		(75)#define	MEGASCSI_MAX_LDRIVES		8#define	MEGASCSI_MAX_SPANDEPTH	4#define	MEGASCSI_MAX_DEVDEPTH	8#define	MEGASCSI_MAX_TARGET		16#define	MEGASCSI_BIG_MAX_PDRIVES	(256)#define	MEGASCSI_BIG_MAX_LDRIVES	40#define	MEGASCSI_BIG_MAX_SPANDEPTH	8#define	MEGASCSI_BIG_MAX_DEVDEPTH	32#define	MEGASCSI_MAXCMDS	126	/* theoretical limit is 250 */#define	MEGASCSI_SECTOR_SIZE	512#define	MEGASCSI_MAXOFFSETS	26#define	MEGASCSI_SGEPERCMD	32		/* to prevent page boundary crossing */#define MEGASCSI_MAX_BUSYWAIT 10		/* wait up to 10 usecs */#define MEGASCSI_MAX_POLLWAIT 1000000	/* wait up to 1000 000 usecs */ #define	MEGASCSI_MAXFER	(MEGASCSI_MAXOFFSETS * PAGE_SIZE)/* commands */#define	MEGASCSI_PASSTHRU	0x03	/* pass scsi cdb to the device */#define	MEGASCSI_EINQUIRY	0x04	/* extended inquiry */#define	MEGASCSI_INQUIRY	0x05	/* inquiry */#define	MEGASCSI_CHSTATE	0x06	/* pad[0] -- state */#define		MEGASCSI_STATE_ON	3#define		MEGASCSI_STATE_FAIL	4#define		MEGASCSI_STATE_SPARE	6#define	MEGASCSI_RCONFIG	0x07	/* read configuration up to 4 spans */#define	MEGASCSI_REBUILDPD	0x08	/* rebuild physical drive */#define	MEGASCSI_EINQUIRY3	0x0c#define	MEGASCSI_SPEAKER	0x51	/* speaker control */#define		MEGASCSI_SPKR_OFF	0#define		MEGASCSI_SPKR_ON	1#define		MEGASCSI_SPKR_SHUT	2#define		MEGASCSI_SPKR_GVAL	3#define		MEGASCSI_SPKR_TEST	4#define	MEGASCSI_NEWCFG	0x99#define	MEGASCSI_NEWOP	0xa0#define	MEGASCSI_FCOP	0xa1#define		MEGASCSI_FC_RDCONF	0x04#define		MEGASCSI_FC_RDFCONF	0x05#define		MEGASCSI_FC_PRODINF	0x0e#define		MEGASCSI_FC_EINQ3	0x0f#define		MEGASCSI_FC_EINQ4	0x1f#define			MEGASCSI_FC_EINQ3_SOLICITED_NOTIFY	0x01#define			MEGASCSI_FC_EINQ3_SOLICITED_FULL	0x02#define			MEGASCSI_FC_EINQ3_UNSOLICITED	0x03/* command structures */#pragma pack(1)struct megascsi_iocmd {	unsigned char	acc_cmd;	unsigned char	acc_id;	union {#define	acc_mbox	_._megascsi_mbox		struct {			unsigned short	amb_nsect;			unsigned int	amb_lba;			unsigned int	amb_data;			unsigned char	amb_ldn;	/* logical drive no */			unsigned char	amb_nsge;			unsigned char	amb_reserved;		} _megascsi_mbox;#define	acc_io		_._megascsi_io		struct {			unsigned char	aio_channel;			unsigned char	aio_param;			unsigned char	aio_pad[4];			unsigned int	aio_data;			unsigned char	aio_pad1[3];		} _megascsi_io;#define	acc_passthru	_._megascsi_passru		struct {			unsigned short	apt_dummy0;			unsigned int	apt_dummy1;			unsigned int	apt_data;			unsigned char	apt_dummy2;			unsigned char	apt_dummy3;			unsigned char	apt_reserved;		} _megascsi_passru;#define	acc_ldrv	_._megascsi_ldrv		struct {			unsigned short	ald_dummy0;			unsigned int	ald_dummy1;			unsigned int	ald_data;			unsigned char	ald_ldrv;			unsigned char	ald_dummy2;			unsigned char	ald_reserved;		} _megascsi_ldrv;	} _;	unsigned char	acc_busy;	unsigned char	acc_nstat;	unsigned char	acc_status;#define	MEGASCSI_MAXSTATACK	0x2e	unsigned char	acc_cmplidl[MEGASCSI_MAXSTATACK];	unsigned char	acc_poll;	unsigned char	acc_ack;	unsigned char	acc_pad[0x3e];	/* pad to 128 bytes */};struct megascsi_sgent {	unsigned int	asg_addr;	unsigned int	asg_len;};struct megascsi_iocmd64 {	unsigned char	acc_cmd;	unsigned char	acc_id;	union {		struct {			unsigned short	amb_nsect;			unsigned int	amb_lba;			unsigned int	amb_reserved1;			unsigned char	amb_ldn;	/* logical drive no */			unsigned char	amb_nsge;	/* high bit == 1 */			unsigned char	amb_reserved;		} _megascsi_mbox;		struct {			unsigned char	aio_channel;			unsigned char	aio_param;			unsigned char	aio_pad[4];			unsigned int	aio_data;			unsigned char	aio_pad1[3];		} _megascsi_io;		struct {			unsigned short	apt_dummy0;			unsigned int	apt_dummy1;			unsigned int	apt_data;			unsigned char	apt_dummy2;			unsigned char	apt_dummy3;			unsigned char	apt_reserved;		} _megascsi_passru;		struct {			unsigned short	ald_dummy0;			unsigned int	ald_dummy1;			unsigned int	ald_data;			unsigned char	ald_ldrv;			unsigned char	ald_dummy2;			unsigned char	ald_reserved;		} _megascsi_ldrv;	} _;	unsigned char	acc_busy;	unsigned int	acc_data_l;	unsigned int	acc_data_h;	unsigned int	acc_reserved;	unsigned char	acc_nstat;	unsigned char	acc_status;	unsigned char	acc_cmplidl[MEGASCSI_MAXSTATACK];	unsigned char	acc_poll;	unsigned char	acc_ack;	unsigned char	acc_pad[0x32];	/* pad to 128 bytes */};struct megascsi_sgent64 {	unsigned int	asg_addr_l;	unsigned int	asg_addr_h;	unsigned int	asg_len;};struct megascsi_passthrough {	unsigned char	apt_param;#define	MEGASCSI_PTPARAM(t,a,l)	(((l) << 7) | (((a) & 1) << 3) | ((t) & 3))#define	MEGASCSI_TIMEOUT_6	0#define	MEGASCSI_TIMEOUT_60	1#define	MEGASCSI_TIMEOUT_10m	2#define	MEGASCSI_TIMEOUT_3h	3	unsigned char	apt_ldn;	unsigned char	apt_channel;	unsigned char	apt_target;	unsigned char	apt_qtag;	unsigned char	apt_qact;#define	MEGASCSI_MAX_CDB	10	unsigned char	apt_cdb[MEGASCSI_MAX_CDB];	unsigned char	apt_ncdb;	unsigned char	apt_nsense;#define	MEGASCSI_MAX_SENSE	32	unsigned char	apt_sense[MEGASCSI_MAX_SENSE];	unsigned char	apt_nsg;	unsigned char	apt_scsistat;	unsigned int	apt_data;	unsigned int	apt_datalen;};struct megascsi_inquiry {	unsigned char	ain_maxcmd;	unsigned char	ain_rbldrate;	/* rebuild rate %% */	unsigned char	ain_targets;	/* max targets per channel */	unsigned char	ain_channels;	unsigned char	ain_fwver[4];	unsigned short	ain_flashage;	unsigned char	ain_chipset;	/* parity generation policy */	unsigned char	ain_ramsize;	unsigned char	ain_flushintv;	unsigned char	ain_biosver[4];	unsigned char	ain_brdtype;	unsigned char	ain_scsisensealert;	unsigned char	ain_wrcfgcnt;	/* write config count */	unsigned char	ain_drvinscnt;	/* drive insertion count */	unsigned char	ain_insdrv;	/* inserted drive */	unsigned char	ain_battery;	/* battery status */	unsigned char	ain_reserved;	unsigned char	ain_nlogdrv;	unsigned char	ain_reserved1[3];	unsigned int	ain_ldsize[MEGASCSI_MAX_LDRIVES];	unsigned char	ain_ldprop[MEGASCSI_MAX_LDRIVES];	unsigned char	ain_ldstat[MEGASCSI_MAX_LDRIVES];	unsigned char	ain_pdstat[MEGASCSI_MAX_PDRIVES];	unsigned char	ain_predictivefailure;	unsigned char	ain_pdfmtinp[MEGASCSI_MAX_PDRIVES];	unsigned char	ain_reserved2[MEGASCSI_MAX_PDRIVES];	unsigned int	ain_esize;	/* extended data size */	unsigned short	ain_ssid;	/* subsystem id */	unsigned short	ain_ssvid;	/* subsystem vendor id */	unsigned int	ain_signature;#define	MEGASCSI_SIGN431	0xfffe0001#define	MEGASCSI_SIGN438	0xfffd0002#define	MEGASCSI_SIGN762	0xfffc0003#define	MEGASCSI_SIGNT5	0xfffb0004#define	MEGASCSI_SIGN466	0xfffa0005};#define MAX_NOTIFY_SIZE	0x80/* #define CUR_NOTIFY_SIZE (sizeof(struct megascsi_notify)) */struct megascsi_notify{	unsigned int	ano_eventcounter;	/* incremented for changes */	unsigned char	ano_paramcounter;	/* param change */	unsigned char	ano_parmegad;		/* param modified */#define MEGASCSI_PARAM_RBLD_RATE		0x01 /* new rebuild rate */#define MEGASCSI_PARAM_CACHE_FLUSH_INTERVAL	0x02 /* new cache flush interval */#define MEGASCSI_PARAM_SENSE_ALERT		0x03 /* pd caused check condition */#define MEGASCSI_PARAM_DRIVE_INSERTED	0x04 /* pd inserted */#define MEGASCSI_PARAM_BATTERY_STATUS	0x05 /* battery status */#define MEGASCSI_PARAM_NVRAM_EVENT_ALERT	0x06 /* NVRAM # of entries */#define MEGASCSI_PARAM_PATROL_READ_UPDATE	0x07 /* # pd done with patrol read */#define MEGASCSI_PARAM_PATROL_READ_STATUS	0x08 /* 0 stopped					      * 2 aborted