Documentation/scsi/arcmsr_spec.txt - kernel/common - Git at Google


            
            *******************************************************************************

            
            **                            ARECA FIRMWARE SPEC

            
            *******************************************************************************

            
            **	Usage of IOP331 adapter

            
            **	(All In/Out is in IOP331's view)

            
            **	1. Message 0 --> InitThread message and return code

            
            **	2. Doorbell is used for RS-232 emulation

            
            **		inDoorBell :    bit0 -- data in ready

            
            **			(DRIVER DATA WRITE OK)

            
            **				bit1 -- data out has been read

            
            **			(DRIVER DATA READ OK)

            
            **		outDooeBell:    bit0 -- data out ready

            
            **			(IOP331 DATA WRITE OK)

            
            **				bit1 -- data in has been read

            
            **			(IOP331 DATA READ OK)

            
            **	3. Index Memory Usage

            
            **	offset 0xf00 : for RS232 out (request buffer)

            
            **	offset 0xe00 : for RS232 in  (scratch buffer)

            
            **	offset 0xa00 : for inbound message code message_rwbuffer

            
            **			(driver send to IOP331)

            
            **	offset 0xa00 : for outbound message code message_rwbuffer

            
            **			(IOP331 send to driver)

            
            **	4. RS-232 emulation

            
            **		Currently 128 byte buffer is used

            
            **			1st uint32_t : Data length (1--124)

            
            **			Byte 4--127  : Max 124 bytes of data

            
            **	5. PostQ

            
            **	All SCSI Command must be sent through postQ:

            
            **	(inbound queue port)	Request frame must be 32 bytes aligned

            
            **	#bit27--bit31 => flag for post ccb

            
            **	#bit0--bit26  => real address (bit27--bit31) of post arcmsr_cdb

            
            **		bit31 :

            
            **			0 : 256 bytes frame

            
            **			1 : 512 bytes frame

            
            **		bit30 :

            
            **			0 : normal request

            
            **			1 : BIOS request

            
            **		bit29 : reserved

            
            **		bit28 : reserved

            
            **		bit27 : reserved

            
            **  ---------------------------------------------------------------------------

            
            **	(outbount queue port)	Request reply

            
            **	#bit27--bit31

            
            **		=> flag for reply

            
            **	#bit0--bit26

            
            **		=> real address (bit27--bit31) of reply arcmsr_cdb

            
            **			bit31 : must be 0 (for this type of reply)

            
            **			bit30 : reserved for BIOS handshake

            
            **			bit29 : reserved

            
            **			bit28 :

            
            **			0 : no error, ignore AdapStatus/DevStatus/SenseData

            
            **			1 : Error, error code in AdapStatus/DevStatus/SenseData

            
            **			bit27 : reserved

            
            **	6. BIOS request

            
            **		All BIOS request is the same with request from PostQ

            
            **		Except :

            
            **			Request frame is sent from configuration space

            
            **		offset: 0x78 : Request Frame (bit30 == 1)

            
            **		offset: 0x18 : writeonly to generate

            
            **					IRQ to IOP331

            
            **		Completion of request:

            
            **			(bit30 == 0, bit28==err flag)

            
            **	7. Definition of SGL entry (structure)

            
            **	8. Message1 Out - Diag Status Code (????)

            
            **	9. Message0 message code :

            
            **		0x00 : NOP

            
            **		0x01 : Get Config

            
            **		->offset 0xa00 :for outbound message code message_rwbuffer

            
            **		(IOP331 send to driver)

            
            **		Signature             0x87974060(4)

            
            **		Request len           0x00000200(4)

            
            **		numbers of queue      0x00000100(4)

            
            **		SDRAM Size            0x00000100(4)-->256 MB

            
            **		IDE Channels          0x00000008(4)

            
            **		vendor                40 bytes char

            
            **		model                  8 bytes char

            
            **		FirmVer               16 bytes char

            
            **		Device Map            16 bytes char

            
            **		FirmwareVersion DWORD <== Added for checking of

            
            **						new firmware capability

            
            **		0x02 : Set Config

            
            **		->offset 0xa00 :for inbound message code message_rwbuffer

            
            **		(driver send to IOP331)

            
            **		Signature             0x87974063(4)

            
            **		UPPER32 of Request Frame  (4)-->Driver Only

            
            **		0x03 : Reset (Abort all queued Command)

            
            **		0x04 : Stop Background Activity

            
            **		0x05 : Flush Cache

            
            **		0x06 : Start Background Activity

            
            **			(re-start if background is halted)

            
            **		0x07 : Check If Host Command Pending

            
            **			(Novell May Need This Function)

            
            **		0x08 : Set controller time

            
            **		->offset 0xa00 : for inbound message code message_rwbuffer

            
            **		(driver to IOP331)

            
            **		byte 0 : 0xaa <-- signature

            
            **		byte 1 : 0x55 <-- signature

            
            **		byte 2 : year (04)

            
            **		byte 3 : month (1..12)

            
            **		byte 4 : date (1..31)

            
            **		byte 5 : hour (0..23)

            
            **		byte 6 : minute (0..59)

            
            **		byte 7 : second (0..59)

            
            *******************************************************************************

            
            *******************************************************************************

            
            **      	RS-232 Interface for Areca Raid Controller

            
            **      The low level command interface is exclusive with VT100 terminal

            
            **  --------------------------------------------------------------------

            
            **      1. Sequence of command execution

            
            **  --------------------------------------------------------------------

            
            **    	(A) Header : 3 bytes sequence (0x5E, 0x01, 0x61)

            
            **    	(B) Command block : variable length of data including length,

            
            **    		command code, data and checksum byte

            
            **    	(C) Return data : variable length of data

            
            **  --------------------------------------------------------------------

            
            **    2. Command block

            
            **  --------------------------------------------------------------------

            
            **    	(A) 1st byte : command block length (low byte)

            
            **    	(B) 2nd byte : command block length (high byte)

            
            **                note ..command block length shouldn't > 2040 bytes,

            
            **    		length excludes these two bytes

            
            **    	(C) 3rd byte : command code

            
            **    	(D) 4th and following bytes : variable length data bytes

            
            **    		depends on command code

            
            **    	(E) last byte : checksum byte (sum of 1st byte until last data byte)

            
            **  --------------------------------------------------------------------

            
            **    3. Command code and associated data

            
            **  --------------------------------------------------------------------

            
            **    	The following are command code defined in raid controller Command

            
            **    	code 0x10--0x1? are used for system level management,

            
            **    	no password checking is needed and should be implemented in separate

            
            **    	well controlled utility and not for end user access.

            
            **    	Command code 0x20--0x?? always check the password,

            
            **    	password must be entered to enable these command.

            
            **    	enum

            
            **    	{

            
            **    		GUI_SET_SERIAL=0x10,

            
            **    		GUI_SET_VENDOR,

            
            **    		GUI_SET_MODEL,

            
            **    		GUI_IDENTIFY,

            
            **    		GUI_CHECK_PASSWORD,

            
            **    		GUI_LOGOUT,

            
            **    		GUI_HTTP,

            
            **    		GUI_SET_ETHERNET_ADDR,

            
            **    		GUI_SET_LOGO,

            
            **    		GUI_POLL_EVENT,

            
            **    		GUI_GET_EVENT,

            
            **    		GUI_GET_HW_MONITOR,

            
            **    		//    GUI_QUICK_CREATE=0x20, (function removed)

            
            **    		GUI_GET_INFO_R=0x20,

            
            **    		GUI_GET_INFO_V,

            
            **    		GUI_GET_INFO_P,

            
            **    		GUI_GET_INFO_S,

            
            **    		GUI_CLEAR_EVENT,

            
            **    		GUI_MUTE_BEEPER=0x30,

            
            **    		GUI_BEEPER_SETTING,

            
            **    		GUI_SET_PASSWORD,

            
            **    		GUI_HOST_INTERFACE_MODE,

            
            **    		GUI_REBUILD_PRIORITY,

            
            **    		GUI_MAX_ATA_MODE,

            
            **    		GUI_RESET_CONTROLLER,

            
            **    		GUI_COM_PORT_SETTING,

            
            **    		GUI_NO_OPERATION,

            
            **    		GUI_DHCP_IP,

            
            **    		GUI_CREATE_PASS_THROUGH=0x40,

            
            **    		GUI_MODIFY_PASS_THROUGH,

            
            **    		GUI_DELETE_PASS_THROUGH,

            
            **    		GUI_IDENTIFY_DEVICE,

            
            **    		GUI_CREATE_RAIDSET=0x50,

            
            **    		GUI_DELETE_RAIDSET,

            
            **    		GUI_EXPAND_RAIDSET,

            
            **    		GUI_ACTIVATE_RAIDSET,

            
            **    		GUI_CREATE_HOT_SPARE,

            
            **    		GUI_DELETE_HOT_SPARE,

            
            **    		GUI_CREATE_VOLUME=0x60,

            
            **    		GUI_MODIFY_VOLUME,

            
            **    		GUI_DELETE_VOLUME,

            
            **    		GUI_START_CHECK_VOLUME,

            
            **    		GUI_STOP_CHECK_VOLUME

            
            **    	};

            
            **    Command description :

            
            **    	GUI_SET_SERIAL : Set the controller serial#

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x10

            
            **    		byte 3          : password length (should be 0x0f)

            
            **    		byte 4-0x13     : should be "ArEcATecHnoLogY"

            
            **    		byte 0x14--0x23 : Serial number string (must be 16 bytes)

            
            **      GUI_SET_VENDOR : Set vendor string for the controller

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x11

            
            **    		byte 3          : password length (should be 0x08)

            
            **    		byte 4-0x13     : should be "ArEcAvAr"

            
            **    		byte 0x14--0x3B : vendor string (must be 40 bytes)

            
            **      GUI_SET_MODEL : Set the model name of the controller

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x12

            
            **    		byte 3          : password length (should be 0x08)

            
            **    		byte 4-0x13     : should be "ArEcAvAr"

            
            **    		byte 0x14--0x1B : model string (must be 8 bytes)

            
            **      GUI_IDENTIFY : Identify device

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x13

            
            **    		                  return "Areca RAID Subsystem "

            
            **      GUI_CHECK_PASSWORD : Verify password

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x14

            
            **    		byte 3          : password length

            
            **    		byte 4-0x??     : user password to be checked

            
            **      GUI_LOGOUT : Logout GUI (force password checking on next command)

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x15

            
            **      GUI_HTTP : HTTP interface (reserved for Http proxy service)(0x16)

            
            **

            
            **      GUI_SET_ETHERNET_ADDR : Set the ethernet MAC address

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x17

            
            **    		byte 3          : password length (should be 0x08)

            
            **    		byte 4-0x13     : should be "ArEcAvAr"

            
            **    		byte 0x14--0x19 : Ethernet MAC address (must be 6 bytes)

            
            **      GUI_SET_LOGO : Set logo in HTTP

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x18

            
            **    		byte 3          : Page# (0/1/2/3) (0xff --> clear OEM logo)

            
            **    		byte 4/5/6/7    : 0x55/0xaa/0xa5/0x5a

            
            **    		byte 8          : TITLE.JPG data (each page must be 2000 bytes)

            
            **    		                  note page0 1st 2 byte must be

            
            **    					actual length of the JPG file

            
            **      GUI_POLL_EVENT : Poll If Event Log Changed

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x19

            
            **      GUI_GET_EVENT : Read Event

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x1a

            
            **    		byte 3          : Event Page (0:1st page/1/2/3:last page)

            
            **      GUI_GET_HW_MONITOR : Get HW monitor data

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x1b

            
            **    		byte 3 			: # of FANs(example 2)

            
            **    		byte 4 			: # of Voltage sensor(example 3)

            
            **    		byte 5 			: # of temperature sensor(example 2)

            
            **    		byte 6 			: # of power

            
            **    		byte 7/8        : Fan#0 (RPM)

            
            **    		byte 9/10       : Fan#1

            
            **    		byte 11/12 		: Voltage#0 original value in *1000

            
            **    		byte 13/14 		: Voltage#0 value

            
            **    		byte 15/16 		: Voltage#1 org

            
            **    		byte 17/18 		: Voltage#1

            
            **    		byte 19/20 		: Voltage#2 org

            
            **    		byte 21/22 		: Voltage#2

            
            **    		byte 23 		: Temp#0

            
            **    		byte 24 		: Temp#1

            
            **    		byte 25 		: Power indicator (bit0 : power#0,

            
            **    						 bit1 : power#1)

            
            **    		byte 26 		: UPS indicator

            
            **      GUI_QUICK_CREATE : Quick create raid/volume set

            
            **    	    byte 0,1        : length

            
            **    	    byte 2          : command code 0x20

            
            **    	    byte 3/4/5/6    : raw capacity

            
            **    	    byte 7 			: raid level

            
            **    	    byte 8 			: stripe size

            
            **    	    byte 9 			: spare

            
            **    	    byte 10/11/12/13: device mask (the devices to create raid/volume)

            
            **    		This function is removed, application like

            
            **    		to implement quick create function

            
            **    	need to use GUI_CREATE_RAIDSET and GUI_CREATE_VOLUMESET function.

            
            **      GUI_GET_INFO_R : Get Raid Set Information

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x20

            
            **    		byte 3          : raidset#

            
            **    	typedef struct sGUI_RAIDSET

            
            **    	{

            
            **    		BYTE grsRaidSetName[16];

            
            **    		DWORD grsCapacity;

            
            **    		DWORD grsCapacityX;

            
            **    		DWORD grsFailMask;

            
            **    		BYTE grsDevArray[32];

            
            **    		BYTE grsMemberDevices;

            
            **    		BYTE grsNewMemberDevices;

            
            **    		BYTE grsRaidState;

            
            **    		BYTE grsVolumes;

            
            **    		BYTE grsVolumeList[16];

            
            **    		BYTE grsRes1;

            
            **    		BYTE grsRes2;

            
            **    		BYTE grsRes3;

            
            **    		BYTE grsFreeSegments;

            
            **    		DWORD grsRawStripes[8];

            
            **    		DWORD grsRes4;

            
            **    		DWORD grsRes5; //     Total to 128 bytes

            
            **    		DWORD grsRes6; //     Total to 128 bytes

            
            **    	} sGUI_RAIDSET, *pGUI_RAIDSET;

            
            **      GUI_GET_INFO_V : Get Volume Set Information

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x21

            
            **    		byte 3          : volumeset#

            
            **    	typedef struct sGUI_VOLUMESET

            
            **    	{

            
            **    		BYTE gvsVolumeName[16]; //     16

            
            **    		DWORD gvsCapacity;

            
            **    		DWORD gvsCapacityX;

            
            **    		DWORD gvsFailMask;

            
            **    		DWORD gvsStripeSize;

            
            **    		DWORD gvsNewFailMask;

            
            **    		DWORD gvsNewStripeSize;

            
            **    		DWORD gvsVolumeStatus;

            
            **    		DWORD gvsProgress; //     32

            
            **    		sSCSI_ATTR gvsScsi;

            
            **    		BYTE gvsMemberDisks;

            
            **    		BYTE gvsRaidLevel; //     8

            
            **    		BYTE gvsNewMemberDisks;

            
            **    		BYTE gvsNewRaidLevel;

            
            **    		BYTE gvsRaidSetNumber;

            
            **    		BYTE gvsRes0; //     4

            
            **    		BYTE gvsRes1[4]; //     64 bytes

            
            **    	} sGUI_VOLUMESET, *pGUI_VOLUMESET;

            
            **      GUI_GET_INFO_P : Get Physical Drive Information

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x22

            
            **    		byte 3          : drive # (from 0 to max-channels - 1)

            
            **    	typedef struct sGUI_PHY_DRV

            
            **    	{

            
            **    		BYTE gpdModelName[40];

            
            **    		BYTE gpdSerialNumber[20];

            
            **    		BYTE gpdFirmRev[8];

            
            **    		DWORD gpdCapacity;

            
            **    		DWORD gpdCapacityX; //     Reserved for expansion

            
            **    		BYTE gpdDeviceState;

            
            **    		BYTE gpdPioMode;

            
            **    		BYTE gpdCurrentUdmaMode;

            
            **    		BYTE gpdUdmaMode;

            
            **    		BYTE gpdDriveSelect;

            
            **    		BYTE gpdRaidNumber; //     0xff if not belongs to a raid set

            
            **    		sSCSI_ATTR gpdScsi;

            
            **    		BYTE gpdReserved[40]; //     Total to 128 bytes

            
            **    	} sGUI_PHY_DRV, *pGUI_PHY_DRV;

            
            **    	GUI_GET_INFO_S : Get System Information

            
            **      	byte 0,1        : length

            
            **      	byte 2          : command code 0x23

            
            **    	typedef struct sCOM_ATTR

            
            **    	{

            
            **    		BYTE comBaudRate;

            
            **    		BYTE comDataBits;

            
            **    		BYTE comStopBits;

            
            **    		BYTE comParity;

            
            **    		BYTE comFlowControl;

            
            **    	} sCOM_ATTR, *pCOM_ATTR;

            
            **    	typedef struct sSYSTEM_INFO

            
            **    	{

            
            **    		BYTE gsiVendorName[40];

            
            **    		BYTE gsiSerialNumber[16];

            
            **    		BYTE gsiFirmVersion[16];

            
            **    		BYTE gsiBootVersion[16];

            
            **    		BYTE gsiMbVersion[16];

            
            **    		BYTE gsiModelName[8];

            
            **    		BYTE gsiLocalIp[4];

            
            **    		BYTE gsiCurrentIp[4];

            
            **    		DWORD gsiTimeTick;

            
            **    		DWORD gsiCpuSpeed;

            
            **    		DWORD gsiICache;

            
            **    		DWORD gsiDCache;

            
            **    		DWORD gsiScache;

            
            **    		DWORD gsiMemorySize;

            
            **    		DWORD gsiMemorySpeed;

            
            **    		DWORD gsiEvents;

            
            **    		BYTE gsiMacAddress[6];

            
            **    		BYTE gsiDhcp;

            
            **    		BYTE gsiBeeper;

            
            **    		BYTE gsiChannelUsage;

            
            **    		BYTE gsiMaxAtaMode;

            
            **    		BYTE gsiSdramEcc; //     1:if ECC enabled

            
            **    		BYTE gsiRebuildPriority;

            
            **    		sCOM_ATTR gsiComA; //     5 bytes

            
            **    		sCOM_ATTR gsiComB; //     5 bytes

            
            **    		BYTE gsiIdeChannels;

            
            **    		BYTE gsiScsiHostChannels;

            
            **    		BYTE gsiIdeHostChannels;

            
            **    		BYTE gsiMaxVolumeSet;

            
            **    		BYTE gsiMaxRaidSet;

            
            **    		BYTE gsiEtherPort; //     1:if ether net port supported

            
            **    		BYTE gsiRaid6Engine; //     1:Raid6 engine supported

            
            **    		BYTE gsiRes[75];

            
            **    	} sSYSTEM_INFO, *pSYSTEM_INFO;

            
            **    	GUI_CLEAR_EVENT : Clear System Event

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x24

            
            **      GUI_MUTE_BEEPER : Mute current beeper

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x30

            
            **      GUI_BEEPER_SETTING : Disable beeper

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x31

            
            **    		byte 3          : 0->disable, 1->enable

            
            **      GUI_SET_PASSWORD : Change password

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x32

            
            **    		byte 3 			: pass word length ( must <= 15 )

            
            **    		byte 4 			: password (must be alpha-numerical)

            
            **    	GUI_HOST_INTERFACE_MODE : Set host interface mode

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x33

            
            **    		byte 3 			: 0->Independent, 1->cluster

            
            **      GUI_REBUILD_PRIORITY : Set rebuild priority

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x34

            
            **    		byte 3 			: 0/1/2/3 (low->high)

            
            **      GUI_MAX_ATA_MODE : Set maximum ATA mode to be used

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x35

            
            **    		byte 3 			: 0/1/2/3 (133/100/66/33)

            
            **      GUI_RESET_CONTROLLER : Reset Controller

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x36

            
            **                            *Response with VT100 screen (discard it)

            
            **      GUI_COM_PORT_SETTING : COM port setting

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x37

            
            **    		byte 3 			: 0->COMA (term port),

            
            **    					  1->COMB (debug port)

            
            **    		byte 4 			: 0/1/2/3/4/5/6/7

            
            **    			(1200/2400/4800/9600/19200/38400/57600/115200)

            
            **    		byte 5 			: data bit

            
            **    					(0:7 bit, 1:8 bit : must be 8 bit)

            
            **    		byte 6 			: stop bit (0:1, 1:2 stop bits)

            
            **    		byte 7 			: parity (0:none, 1:off, 2:even)

            
            **    		byte 8 			: flow control

            
            **    			(0:none, 1:xon/xoff, 2:hardware => must use none)

            
            **      GUI_NO_OPERATION : No operation

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x38

            
            **      GUI_DHCP_IP : Set DHCP option and local IP address

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x39

            
            **    		byte 3          : 0:dhcp disabled, 1:dhcp enabled

            
            **    		byte 4/5/6/7    : IP address

            
            **      GUI_CREATE_PASS_THROUGH : Create pass through disk

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x40

            
            **    		byte 3 			: device #

            
            **    		byte 4 			: scsi channel (0/1)

            
            **    		byte 5 			: scsi id (0-->15)

            
            **    		byte 6 			: scsi lun (0-->7)

            
            **    		byte 7 			: tagged queue (1 : enabled)

            
            **    		byte 8 			: cache mode (1 : enabled)

            
            **    		byte 9 			: max speed (0/1/2/3/4,

            
            **    			async/20/40/80/160 for scsi)

            
            **    			(0/1/2/3/4, 33/66/100/133/150 for ide  )

            
            **      GUI_MODIFY_PASS_THROUGH : Modify pass through disk

            
            **    		byte 0,1        : length

            
            **    		byte 2 			: command code 0x41

            
            **    		byte 3 			: device #

            
            **    		byte 4 			: scsi channel (0/1)

            
            **    		byte 5 			: scsi id (0-->15)

            
            **    		byte 6 			: scsi lun (0-->7)

            
            **    		byte 7 			: tagged queue (1 : enabled)

            
            **    		byte 8 			: cache mode (1 : enabled)

            
            **    		byte 9 			: max speed (0/1/2/3/4,

            
            **    					async/20/40/80/160 for scsi)

            
            **    			(0/1/2/3/4, 33/66/100/133/150 for ide  )

            
            **      GUI_DELETE_PASS_THROUGH : Delete pass through disk

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x42

            
            **    		byte 3          : device# to be deleted

            
            **      GUI_IDENTIFY_DEVICE : Identify Device

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x43

            
            **    		byte 3          : Flash Method

            
            **    				(0:flash selected, 1:flash not selected)

            
            **    		byte 4/5/6/7    : IDE device mask to be flashed

            
            **                           note .... no response data available

            
            **    	GUI_CREATE_RAIDSET : Create Raid Set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x50

            
            **    		byte 3/4/5/6    : device mask

            
            **    		byte 7-22       : raidset name (if byte 7 == 0:use default)

            
            **      GUI_DELETE_RAIDSET : Delete Raid Set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x51

            
            **    		byte 3          : raidset#

            
            **    	GUI_EXPAND_RAIDSET : Expand Raid Set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x52

            
            **    		byte 3          : raidset#

            
            **    		byte 4/5/6/7    : device mask for expansion

            
            **    		byte 8/9/10     : (8:0 no change, 1 change, 0xff:terminate,

            
            **    				9:new raid level,

            
            **    				10:new stripe size

            
            **    				0/1/2/3/4/5->4/8/16/32/64/128K )

            
            **    		byte 11/12/13   : repeat for each volume in the raidset

            
            **      GUI_ACTIVATE_RAIDSET : Activate incomplete raid set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x53

            
            **    		byte 3          : raidset#

            
            **      GUI_CREATE_HOT_SPARE : Create hot spare disk

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x54

            
            **    		byte 3/4/5/6    : device mask for hot spare creation

            
            **    	GUI_DELETE_HOT_SPARE : Delete hot spare disk

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x55

            
            **    		byte 3/4/5/6    : device mask for hot spare deletion

            
            **    	GUI_CREATE_VOLUME : Create volume set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x60

            
            **    		byte 3          : raidset#

            
            **    		byte 4-19       : volume set name

            
            **    				(if byte4 == 0, use default)

            
            **    		byte 20-27      : volume capacity (blocks)

            
            **    		byte 28 		: raid level

            
            **    		byte 29 		: stripe size

            
            **    				(0/1/2/3/4/5->4/8/16/32/64/128K)

            
            **    		byte 30 		: channel

            
            **    		byte 31 		: ID

            
            **    		byte 32 		: LUN

            
            **    		byte 33 		: 1 enable tag

            
            **    		byte 34 		: 1 enable cache

            
            **    		byte 35 		: speed

            
            **    		(0/1/2/3/4->async/20/40/80/160 for scsi)

            
            **    		(0/1/2/3/4->33/66/100/133/150 for IDE  )

            
            **    		byte 36 		: 1 to select quick init

            
            **

            
            **    	GUI_MODIFY_VOLUME : Modify volume Set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x61

            
            **    		byte 3          : volumeset#

            
            **    		byte 4-19       : new volume set name

            
            **    		(if byte4 == 0, not change)

            
            **    		byte 20-27      : new volume capacity (reserved)

            
            **    		byte 28 		: new raid level

            
            **    		byte 29 		: new stripe size

            
            **    		(0/1/2/3/4/5->4/8/16/32/64/128K)

            
            **    		byte 30 		: new channel

            
            **    		byte 31 		: new ID

            
            **    		byte 32 		: new LUN

            
            **    		byte 33 		: 1 enable tag

            
            **    		byte 34 		: 1 enable cache

            
            **    		byte 35 		: speed

            
            **    		(0/1/2/3/4->async/20/40/80/160 for scsi)

            
            **    		(0/1/2/3/4->33/66/100/133/150 for IDE  )

            
            **    	GUI_DELETE_VOLUME : Delete volume set

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x62

            
            **    		byte 3          : volumeset#

            
            **    	GUI_START_CHECK_VOLUME : Start volume consistency check

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x63

            
            **    		byte 3          : volumeset#

            
            **    	GUI_STOP_CHECK_VOLUME : Stop volume consistency check

            
            **    		byte 0,1        : length

            
            **    		byte 2          : command code 0x64

            
            ** ---------------------------------------------------------------------

            
            **    4. Returned data

            
            ** ---------------------------------------------------------------------

            
            **    	(A) Header          : 3 bytes sequence (0x5E, 0x01, 0x61)

            
            **    	(B) Length          : 2 bytes

            
            **    			(low byte 1st, excludes length and checksum byte)

            
            **    	(C) status or data  :

            
            **           <1> If length == 1 ==> 1 byte status code

            
            **    		#define GUI_OK                    0x41

            
            **    		#define GUI_RAIDSET_NOT_NORMAL    0x42

            
            **    		#define GUI_VOLUMESET_NOT_NORMAL  0x43

            
            **    		#define GUI_NO_RAIDSET            0x44

            
            **    		#define GUI_NO_VOLUMESET          0x45

            
            **    		#define GUI_NO_PHYSICAL_DRIVE     0x46

            
            **    		#define GUI_PARAMETER_ERROR       0x47

            
            **    		#define GUI_UNSUPPORTED_COMMAND   0x48

            
            **    		#define GUI_DISK_CONFIG_CHANGED   0x49

            
            **    		#define GUI_INVALID_PASSWORD      0x4a

            
            **    		#define GUI_NO_DISK_SPACE         0x4b

            
            **    		#define GUI_CHECKSUM_ERROR        0x4c

            
            **    		#define GUI_PASSWORD_REQUIRED     0x4d

            
            **           <2> If length > 1 ==>

            
            **    		data block returned from controller

            
            **    		and the contents depends on the command code

            
            **    	(E) Checksum        : checksum of length and status or data byte

            
            **************************************************************************
	*******************************************************************************
	** ARECA FIRMWARE SPEC
	*******************************************************************************
	** Usage of IOP331 adapter
	** (All In/Out is in IOP331's view)
	** 1. Message 0 --> InitThread message and return code
	** 2. Doorbell is used for RS-232 emulation
	** inDoorBell : bit0 -- data in ready
	** (DRIVER DATA WRITE OK)
	** bit1 -- data out has been read
	** (DRIVER DATA READ OK)
	** outDooeBell: bit0 -- data out ready
	** (IOP331 DATA WRITE OK)
	** bit1 -- data in has been read
	** (IOP331 DATA READ OK)
	** 3. Index Memory Usage
	** offset 0xf00 : for RS232 out (request buffer)
	** offset 0xe00 : for RS232 in (scratch buffer)
	** offset 0xa00 : for inbound message code message_rwbuffer
	** (driver send to IOP331)
	** offset 0xa00 : for outbound message code message_rwbuffer
	** (IOP331 send to driver)
	** 4. RS-232 emulation
	** Currently 128 byte buffer is used
	** 1st uint32_t : Data length (1--124)
	** Byte 4--127 : Max 124 bytes of data
	** 5. PostQ
	** All SCSI Command must be sent through postQ:
	** (inbound queue port) Request frame must be 32 bytes aligned
	** #bit27--bit31 => flag for post ccb
	** #bit0--bit26 => real address (bit27--bit31) of post arcmsr_cdb
	** bit31 :
	** 0 : 256 bytes frame
	** 1 : 512 bytes frame
	** bit30 :
	** 0 : normal request
	** 1 : BIOS request
	** bit29 : reserved
	** bit28 : reserved
	** bit27 : reserved
	** ---------------------------------------------------------------------------
	** (outbount queue port) Request reply
	** #bit27--bit31
	** => flag for reply
	** #bit0--bit26
	** => real address (bit27--bit31) of reply arcmsr_cdb
	** bit31 : must be 0 (for this type of reply)
	** bit30 : reserved for BIOS handshake
	** bit29 : reserved
	** bit28 :
	** 0 : no error, ignore AdapStatus/DevStatus/SenseData
	** 1 : Error, error code in AdapStatus/DevStatus/SenseData
	** bit27 : reserved
	** 6. BIOS request
	** All BIOS request is the same with request from PostQ
	** Except :
	** Request frame is sent from configuration space
	** offset: 0x78 : Request Frame (bit30 == 1)
	** offset: 0x18 : writeonly to generate
	** IRQ to IOP331
	** Completion of request:
	** (bit30 == 0, bit28==err flag)
	** 7. Definition of SGL entry (structure)
	** 8. Message1 Out - Diag Status Code (????)
	** 9. Message0 message code :
	** 0x00 : NOP
	** 0x01 : Get Config
	** ->offset 0xa00 :for outbound message code message_rwbuffer
	** (IOP331 send to driver)
	** Signature 0x87974060(4)
	** Request len 0x00000200(4)
	** numbers of queue 0x00000100(4)
	** SDRAM Size 0x00000100(4)-->256 MB
	** IDE Channels 0x00000008(4)
	** vendor 40 bytes char
	** model 8 bytes char
	** FirmVer 16 bytes char
	** Device Map 16 bytes char
	** FirmwareVersion DWORD <== Added for checking of
	** new firmware capability
	** 0x02 : Set Config
	** ->offset 0xa00 :for inbound message code message_rwbuffer
	** (driver send to IOP331)
	** Signature 0x87974063(4)
	** UPPER32 of Request Frame (4)-->Driver Only
	** 0x03 : Reset (Abort all queued Command)
	** 0x04 : Stop Background Activity
	** 0x05 : Flush Cache
	** 0x06 : Start Background Activity
	** (re-start if background is halted)
	** 0x07 : Check If Host Command Pending
	** (Novell May Need This Function)
	** 0x08 : Set controller time
	** ->offset 0xa00 : for inbound message code message_rwbuffer
	** (driver to IOP331)
	** byte 0 : 0xaa <-- signature
	** byte 1 : 0x55 <-- signature
	** byte 2 : year (04)
	** byte 3 : month (1..12)
	** byte 4 : date (1..31)
	** byte 5 : hour (0..23)
	** byte 6 : minute (0..59)
	** byte 7 : second (0..59)
	*******************************************************************************
	*******************************************************************************
	** RS-232 Interface for Areca Raid Controller
	** The low level command interface is exclusive with VT100 terminal
	** --------------------------------------------------------------------
	** 1. Sequence of command execution
	** --------------------------------------------------------------------
	** (A) Header : 3 bytes sequence (0x5E, 0x01, 0x61)
	** (B) Command block : variable length of data including length,
	** command code, data and checksum byte
	** (C) Return data : variable length of data
	** --------------------------------------------------------------------
	** 2. Command block
	** --------------------------------------------------------------------
	** (A) 1st byte : command block length (low byte)
	** (B) 2nd byte : command block length (high byte)
	** note ..command block length shouldn't > 2040 bytes,
	** length excludes these two bytes
	** (C) 3rd byte : command code
	** (D) 4th and following bytes : variable length data bytes
	** depends on command code
	** (E) last byte : checksum byte (sum of 1st byte until last data byte)
	** --------------------------------------------------------------------
	** 3. Command code and associated data
	** --------------------------------------------------------------------
	** The following are command code defined in raid controller Command
	** code 0x10--0x1? are used for system level management,
	** no password checking is needed and should be implemented in separate
	** well controlled utility and not for end user access.
	** Command code 0x20--0x?? always check the password,
	** password must be entered to enable these command.
	** enum
	** {
	** GUI_SET_SERIAL=0x10,
	** GUI_SET_VENDOR,
	** GUI_SET_MODEL,
	** GUI_IDENTIFY,
	** GUI_CHECK_PASSWORD,
	** GUI_LOGOUT,
	** GUI_HTTP,
	** GUI_SET_ETHERNET_ADDR,
	** GUI_SET_LOGO,
	** GUI_POLL_EVENT,
	** GUI_GET_EVENT,
	** GUI_GET_HW_MONITOR,
	** // GUI_QUICK_CREATE=0x20, (function removed)
	** GUI_GET_INFO_R=0x20,
	** GUI_GET_INFO_V,
	** GUI_GET_INFO_P,
	** GUI_GET_INFO_S,
	** GUI_CLEAR_EVENT,
	** GUI_MUTE_BEEPER=0x30,
	** GUI_BEEPER_SETTING,
	** GUI_SET_PASSWORD,
	** GUI_HOST_INTERFACE_MODE,
	** GUI_REBUILD_PRIORITY,
	** GUI_MAX_ATA_MODE,
	** GUI_RESET_CONTROLLER,
	** GUI_COM_PORT_SETTING,
	** GUI_NO_OPERATION,
	** GUI_DHCP_IP,
	** GUI_CREATE_PASS_THROUGH=0x40,
	** GUI_MODIFY_PASS_THROUGH,
	** GUI_DELETE_PASS_THROUGH,
	** GUI_IDENTIFY_DEVICE,
	** GUI_CREATE_RAIDSET=0x50,
	** GUI_DELETE_RAIDSET,
	** GUI_EXPAND_RAIDSET,
	** GUI_ACTIVATE_RAIDSET,
	** GUI_CREATE_HOT_SPARE,
	** GUI_DELETE_HOT_SPARE,
	** GUI_CREATE_VOLUME=0x60,
	** GUI_MODIFY_VOLUME,
	** GUI_DELETE_VOLUME,
	** GUI_START_CHECK_VOLUME,
	** GUI_STOP_CHECK_VOLUME
	** };
	** Command description :
	** GUI_SET_SERIAL : Set the controller serial#
	** byte 0,1 : length
	** byte 2 : command code 0x10
	** byte 3 : password length (should be 0x0f)
	** byte 4-0x13 : should be "ArEcATecHnoLogY"
	** byte 0x14--0x23 : Serial number string (must be 16 bytes)
	** GUI_SET_VENDOR : Set vendor string for the controller
	** byte 0,1 : length
	** byte 2 : command code 0x11
	** byte 3 : password length (should be 0x08)
	** byte 4-0x13 : should be "ArEcAvAr"
	** byte 0x14--0x3B : vendor string (must be 40 bytes)
	** GUI_SET_MODEL : Set the model name of the controller
	** byte 0,1 : length
	** byte 2 : command code 0x12
	** byte 3 : password length (should be 0x08)
	** byte 4-0x13 : should be "ArEcAvAr"
	** byte 0x14--0x1B : model string (must be 8 bytes)
	** GUI_IDENTIFY : Identify device
	** byte 0,1 : length
	** byte 2 : command code 0x13
	** return "Areca RAID Subsystem "
	** GUI_CHECK_PASSWORD : Verify password
	** byte 0,1 : length
	** byte 2 : command code 0x14
	** byte 3 : password length
	** byte 4-0x?? : user password to be checked
	** GUI_LOGOUT : Logout GUI (force password checking on next command)
	** byte 0,1 : length
	** byte 2 : command code 0x15
	** GUI_HTTP : HTTP interface (reserved for Http proxy service)(0x16)
	**
	** GUI_SET_ETHERNET_ADDR : Set the ethernet MAC address
	** byte 0,1 : length
	** byte 2 : command code 0x17
	** byte 3 : password length (should be 0x08)
	** byte 4-0x13 : should be "ArEcAvAr"
	** byte 0x14--0x19 : Ethernet MAC address (must be 6 bytes)
	** GUI_SET_LOGO : Set logo in HTTP
	** byte 0,1 : length
	** byte 2 : command code 0x18
	** byte 3 : Page# (0/1/2/3) (0xff --> clear OEM logo)
	** byte 4/5/6/7 : 0x55/0xaa/0xa5/0x5a
	** byte 8 : TITLE.JPG data (each page must be 2000 bytes)
	** note page0 1st 2 byte must be
	** actual length of the JPG file
	** GUI_POLL_EVENT : Poll If Event Log Changed
	** byte 0,1 : length
	** byte 2 : command code 0x19
	** GUI_GET_EVENT : Read Event
	** byte 0,1 : length
	** byte 2 : command code 0x1a
	** byte 3 : Event Page (0:1st page/1/2/3:last page)
	** GUI_GET_HW_MONITOR : Get HW monitor data
	** byte 0,1 : length
	** byte 2 : command code 0x1b
	** byte 3 : # of FANs(example 2)
	** byte 4 : # of Voltage sensor(example 3)
	** byte 5 : # of temperature sensor(example 2)
	** byte 6 : # of power
	** byte 7/8 : Fan#0 (RPM)
	** byte 9/10 : Fan#1
	** byte 11/12 : Voltage#0 original value in *1000
	** byte 13/14 : Voltage#0 value
	** byte 15/16 : Voltage#1 org
	** byte 17/18 : Voltage#1
	** byte 19/20 : Voltage#2 org
	** byte 21/22 : Voltage#2
	** byte 23 : Temp#0
	** byte 24 : Temp#1
	** byte 25 : Power indicator (bit0 : power#0,
	** bit1 : power#1)
	** byte 26 : UPS indicator
	** GUI_QUICK_CREATE : Quick create raid/volume set
	** byte 0,1 : length
	** byte 2 : command code 0x20
	** byte 3/4/5/6 : raw capacity
	** byte 7 : raid level
	** byte 8 : stripe size
	** byte 9 : spare
	** byte 10/11/12/13: device mask (the devices to create raid/volume)
	** This function is removed, application like
	** to implement quick create function
	** need to use GUI_CREATE_RAIDSET and GUI_CREATE_VOLUMESET function.
	** GUI_GET_INFO_R : Get Raid Set Information
	** byte 0,1 : length
	** byte 2 : command code 0x20
	** byte 3 : raidset#
	** typedef struct sGUI_RAIDSET
	** {
	** BYTE grsRaidSetName[16];
	** DWORD grsCapacity;
	** DWORD grsCapacityX;
	** DWORD grsFailMask;
	** BYTE grsDevArray[32];
	** BYTE grsMemberDevices;
	** BYTE grsNewMemberDevices;
	** BYTE grsRaidState;
	** BYTE grsVolumes;
	** BYTE grsVolumeList[16];
	** BYTE grsRes1;
	** BYTE grsRes2;
	** BYTE grsRes3;
	** BYTE grsFreeSegments;
	** DWORD grsRawStripes[8];
	** DWORD grsRes4;
	** DWORD grsRes5; // Total to 128 bytes
	** DWORD grsRes6; // Total to 128 bytes
	** } sGUI_RAIDSET, *pGUI_RAIDSET;
	** GUI_GET_INFO_V : Get Volume Set Information
	** byte 0,1 : length
	** byte 2 : command code 0x21
	** byte 3 : volumeset#
	** typedef struct sGUI_VOLUMESET
	** {
	** BYTE gvsVolumeName[16]; // 16
	** DWORD gvsCapacity;
	** DWORD gvsCapacityX;
	** DWORD gvsFailMask;
	** DWORD gvsStripeSize;
	** DWORD gvsNewFailMask;
	** DWORD gvsNewStripeSize;
	** DWORD gvsVolumeStatus;
	** DWORD gvsProgress; // 32
	** sSCSI_ATTR gvsScsi;
	** BYTE gvsMemberDisks;
	** BYTE gvsRaidLevel; // 8
	** BYTE gvsNewMemberDisks;
	** BYTE gvsNewRaidLevel;
	** BYTE gvsRaidSetNumber;
	** BYTE gvsRes0; // 4
	** BYTE gvsRes1[4]; // 64 bytes
	** } sGUI_VOLUMESET, *pGUI_VOLUMESET;
	** GUI_GET_INFO_P : Get Physical Drive Information
	** byte 0,1 : length
	** byte 2 : command code 0x22
	** byte 3 : drive # (from 0 to max-channels - 1)
	** typedef struct sGUI_PHY_DRV
	** {
	** BYTE gpdModelName[40];
	** BYTE gpdSerialNumber[20];
	** BYTE gpdFirmRev[8];
	** DWORD gpdCapacity;
	** DWORD gpdCapacityX; // Reserved for expansion
	** BYTE gpdDeviceState;
	** BYTE gpdPioMode;
	** BYTE gpdCurrentUdmaMode;
	** BYTE gpdUdmaMode;
	** BYTE gpdDriveSelect;
	** BYTE gpdRaidNumber; // 0xff if not belongs to a raid set
	** sSCSI_ATTR gpdScsi;
	** BYTE gpdReserved[40]; // Total to 128 bytes
	** } sGUI_PHY_DRV, *pGUI_PHY_DRV;
	** GUI_GET_INFO_S : Get System Information
	** byte 0,1 : length
	** byte 2 : command code 0x23
	** typedef struct sCOM_ATTR
	** {
	** BYTE comBaudRate;
	** BYTE comDataBits;
	** BYTE comStopBits;
	** BYTE comParity;
	** BYTE comFlowControl;
	** } sCOM_ATTR, *pCOM_ATTR;
	** typedef struct sSYSTEM_INFO
	** {
	** BYTE gsiVendorName[40];
	** BYTE gsiSerialNumber[16];
	** BYTE gsiFirmVersion[16];
	** BYTE gsiBootVersion[16];
	** BYTE gsiMbVersion[16];
	** BYTE gsiModelName[8];
	** BYTE gsiLocalIp[4];
	** BYTE gsiCurrentIp[4];
	** DWORD gsiTimeTick;
	** DWORD gsiCpuSpeed;
	** DWORD gsiICache;
	** DWORD gsiDCache;
	** DWORD gsiScache;
	** DWORD gsiMemorySize;
	** DWORD gsiMemorySpeed;
	** DWORD gsiEvents;
	** BYTE gsiMacAddress[6];
	** BYTE gsiDhcp;
	** BYTE gsiBeeper;
	** BYTE gsiChannelUsage;
	** BYTE gsiMaxAtaMode;
	** BYTE gsiSdramEcc; // 1:if ECC enabled
	** BYTE gsiRebuildPriority;
	** sCOM_ATTR gsiComA; // 5 bytes
	** sCOM_ATTR gsiComB; // 5 bytes
	** BYTE gsiIdeChannels;
	** BYTE gsiScsiHostChannels;
	** BYTE gsiIdeHostChannels;
	** BYTE gsiMaxVolumeSet;
	** BYTE gsiMaxRaidSet;
	** BYTE gsiEtherPort; // 1:if ether net port supported
	** BYTE gsiRaid6Engine; // 1:Raid6 engine supported
	** BYTE gsiRes[75];
	** } sSYSTEM_INFO, *pSYSTEM_INFO;
	** GUI_CLEAR_EVENT : Clear System Event
	** byte 0,1 : length
	** byte 2 : command code 0x24
	** GUI_MUTE_BEEPER : Mute current beeper
	** byte 0,1 : length
	** byte 2 : command code 0x30
	** GUI_BEEPER_SETTING : Disable beeper
	** byte 0,1 : length
	** byte 2 : command code 0x31
	** byte 3 : 0->disable, 1->enable
	** GUI_SET_PASSWORD : Change password
	** byte 0,1 : length
	** byte 2 : command code 0x32
	** byte 3 : pass word length ( must <= 15 )
	** byte 4 : password (must be alpha-numerical)
	** GUI_HOST_INTERFACE_MODE : Set host interface mode
	** byte 0,1 : length
	** byte 2 : command code 0x33
	** byte 3 : 0->Independent, 1->cluster
	** GUI_REBUILD_PRIORITY : Set rebuild priority
	** byte 0,1 : length
	** byte 2 : command code 0x34
	** byte 3 : 0/1/2/3 (low->high)
	** GUI_MAX_ATA_MODE : Set maximum ATA mode to be used
	** byte 0,1 : length
	** byte 2 : command code 0x35
	** byte 3 : 0/1/2/3 (133/100/66/33)
	** GUI_RESET_CONTROLLER : Reset Controller
	** byte 0,1 : length
	** byte 2 : command code 0x36
	** *Response with VT100 screen (discard it)
	** GUI_COM_PORT_SETTING : COM port setting
	** byte 0,1 : length
	** byte 2 : command code 0x37
	** byte 3 : 0->COMA (term port),
	** 1->COMB (debug port)
	** byte 4 : 0/1/2/3/4/5/6/7
	** (1200/2400/4800/9600/19200/38400/57600/115200)
	** byte 5 : data bit
	** (0:7 bit, 1:8 bit : must be 8 bit)
	** byte 6 : stop bit (0:1, 1:2 stop bits)
	** byte 7 : parity (0:none, 1:off, 2:even)
	** byte 8 : flow control
	** (0:none, 1:xon/xoff, 2:hardware => must use none)
	** GUI_NO_OPERATION : No operation
	** byte 0,1 : length
	** byte 2 : command code 0x38
	** GUI_DHCP_IP : Set DHCP option and local IP address
	** byte 0,1 : length
	** byte 2 : command code 0x39
	** byte 3 : 0:dhcp disabled, 1:dhcp enabled
	** byte 4/5/6/7 : IP address
	** GUI_CREATE_PASS_THROUGH : Create pass through disk
	** byte 0,1 : length
	** byte 2 : command code 0x40
	** byte 3 : device #
	** byte 4 : scsi channel (0/1)
	** byte 5 : scsi id (0-->15)
	** byte 6 : scsi lun (0-->7)
	** byte 7 : tagged queue (1 : enabled)
	** byte 8 : cache mode (1 : enabled)
	** byte 9 : max speed (0/1/2/3/4,
	** async/20/40/80/160 for scsi)
	** (0/1/2/3/4, 33/66/100/133/150 for ide )
	** GUI_MODIFY_PASS_THROUGH : Modify pass through disk
	** byte 0,1 : length
	** byte 2 : command code 0x41
	** byte 3 : device #
	** byte 4 : scsi channel (0/1)
	** byte 5 : scsi id (0-->15)
	** byte 6 : scsi lun (0-->7)
	** byte 7 : tagged queue (1 : enabled)
	** byte 8 : cache mode (1 : enabled)
	** byte 9 : max speed (0/1/2/3/4,
	** async/20/40/80/160 for scsi)
	** (0/1/2/3/4, 33/66/100/133/150 for ide )
	** GUI_DELETE_PASS_THROUGH : Delete pass through disk
	** byte 0,1 : length
	** byte 2 : command code 0x42
	** byte 3 : device# to be deleted
	** GUI_IDENTIFY_DEVICE : Identify Device
	** byte 0,1 : length
	** byte 2 : command code 0x43
	** byte 3 : Flash Method
	** (0:flash selected, 1:flash not selected)
	** byte 4/5/6/7 : IDE device mask to be flashed
	** note .... no response data available
	** GUI_CREATE_RAIDSET : Create Raid Set
	** byte 0,1 : length
	** byte 2 : command code 0x50
	** byte 3/4/5/6 : device mask
	** byte 7-22 : raidset name (if byte 7 == 0:use default)
	** GUI_DELETE_RAIDSET : Delete Raid Set
	** byte 0,1 : length
	** byte 2 : command code 0x51
	** byte 3 : raidset#
	** GUI_EXPAND_RAIDSET : Expand Raid Set
	** byte 0,1 : length
	** byte 2 : command code 0x52
	** byte 3 : raidset#
	** byte 4/5/6/7 : device mask for expansion
	** byte 8/9/10 : (8:0 no change, 1 change, 0xff:terminate,
	** 9:new raid level,
	** 10:new stripe size
	** 0/1/2/3/4/5->4/8/16/32/64/128K )
	** byte 11/12/13 : repeat for each volume in the raidset
	** GUI_ACTIVATE_RAIDSET : Activate incomplete raid set
	** byte 0,1 : length
	** byte 2 : command code 0x53
	** byte 3 : raidset#
	** GUI_CREATE_HOT_SPARE : Create hot spare disk
	** byte 0,1 : length
	** byte 2 : command code 0x54
	** byte 3/4/5/6 : device mask for hot spare creation
	** GUI_DELETE_HOT_SPARE : Delete hot spare disk
	** byte 0,1 : length
	** byte 2 : command code 0x55
	** byte 3/4/5/6 : device mask for hot spare deletion
	** GUI_CREATE_VOLUME : Create volume set
	** byte 0,1 : length
	** byte 2 : command code 0x60
	** byte 3 : raidset#
	** byte 4-19 : volume set name
	** (if byte4 == 0, use default)
	** byte 20-27 : volume capacity (blocks)
	** byte 28 : raid level
	** byte 29 : stripe size
	** (0/1/2/3/4/5->4/8/16/32/64/128K)
	** byte 30 : channel
	** byte 31 : ID
	** byte 32 : LUN
	** byte 33 : 1 enable tag
	** byte 34 : 1 enable cache
	** byte 35 : speed
	** (0/1/2/3/4->async/20/40/80/160 for scsi)
	** (0/1/2/3/4->33/66/100/133/150 for IDE )
	** byte 36 : 1 to select quick init
	**
	** GUI_MODIFY_VOLUME : Modify volume Set
	** byte 0,1 : length
	** byte 2 : command code 0x61
	** byte 3 : volumeset#
	** byte 4-19 : new volume set name
	** (if byte4 == 0, not change)
	** byte 20-27 : new volume capacity (reserved)
	** byte 28 : new raid level
	** byte 29 : new stripe size
	** (0/1/2/3/4/5->4/8/16/32/64/128K)
	** byte 30 : new channel
	** byte 31 : new ID
	** byte 32 : new LUN
	** byte 33 : 1 enable tag
	** byte 34 : 1 enable cache
	** byte 35 : speed
	** (0/1/2/3/4->async/20/40/80/160 for scsi)
	** (0/1/2/3/4->33/66/100/133/150 for IDE )
	** GUI_DELETE_VOLUME : Delete volume set
	** byte 0,1 : length
	** byte 2 : command code 0x62
	** byte 3 : volumeset#
	** GUI_START_CHECK_VOLUME : Start volume consistency check
	** byte 0,1 : length
	** byte 2 : command code 0x63
	** byte 3 : volumeset#
	** GUI_STOP_CHECK_VOLUME : Stop volume consistency check
	** byte 0,1 : length
	** byte 2 : command code 0x64
	** ---------------------------------------------------------------------
	** 4. Returned data
	** ---------------------------------------------------------------------
	** (A) Header : 3 bytes sequence (0x5E, 0x01, 0x61)
	** (B) Length : 2 bytes
	** (low byte 1st, excludes length and checksum byte)
	** (C) status or data :
	** <1> If length == 1 ==> 1 byte status code
	** #define GUI_OK 0x41
	** #define GUI_RAIDSET_NOT_NORMAL 0x42
	** #define GUI_VOLUMESET_NOT_NORMAL 0x43
	** #define GUI_NO_RAIDSET 0x44
	** #define GUI_NO_VOLUMESET 0x45
	** #define GUI_NO_PHYSICAL_DRIVE 0x46
	** #define GUI_PARAMETER_ERROR 0x47
	** #define GUI_UNSUPPORTED_COMMAND 0x48
	** #define GUI_DISK_CONFIG_CHANGED 0x49
	** #define GUI_INVALID_PASSWORD 0x4a
	** #define GUI_NO_DISK_SPACE 0x4b
	** #define GUI_CHECKSUM_ERROR 0x4c
	** #define GUI_PASSWORD_REQUIRED 0x4d
	** <2> If length > 1 ==>
	** data block returned from controller
	** and the contents depends on the command code
	** (E) Checksum : checksum of length and status or data byte
	**************************************************************************