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 zDRIVER 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

  1. Header

    3 bytes sequence (0x5E, 0x01, 0x61)

  2. Command block

    variable length of data including length, command code, data and checksum byte

  3. Return data

    variable length of data

2. Command block

  1. 1st byte

    command block length (low byte)

  2. 2nd byte

    command block length (high byte)

    Note

    command block length shouldn’t > 2040 bytes, length excludes these two bytes

  3. 3rd byte

    command code

  4. 4th and following bytes

    variable length data bytes

    depends on command code

  5. 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

  1. Header 3 bytes sequence (0x5E, 0x01, 0x61)

  2. Length 2 bytes (low byte 1st, excludes length and checksum byte)

  3. 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

  1. Checksum checksum of length and status or data byte