Merge mulgrave-w:git/scsi-misc-2.6

Conflicts:

	drivers/scsi/iscsi_tcp.c
	drivers/scsi/iscsi_tcp.h

Pretty horrible merge between crypto hash consolidation
and crypto_digest_...->crypto_hash_... conversion

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

Documentation/scsi/ChangeLog.arcmsr

@@ -0,0 +1,56 @@
+**************************************************************************
+** History
+**
+**   REV#         DATE             NAME         DESCRIPTION
+** 1.00.00.00    3/31/2004       Erich Chen     First release
+** 1.10.00.04    7/28/2004       Erich Chen     modify for ioctl
+** 1.10.00.06    8/28/2004       Erich Chen     modify for 2.6.x
+** 1.10.00.08    9/28/2004       Erich Chen     modify for x86_64
+** 1.10.00.10   10/10/2004       Erich Chen     bug fix for SMP & ioctl
+** 1.20.00.00   11/29/2004       Erich Chen     bug fix with arcmsr_bus_reset when PHY error
+** 1.20.00.02   12/09/2004       Erich Chen     bug fix with over 2T bytes RAID Volume
+** 1.20.00.04    1/09/2005       Erich Chen     fits for Debian linux kernel version 2.2.xx
+** 1.20.00.05    2/20/2005       Erich Chen     cleanly as look like a Linux driver at 2.6.x
+**                                              thanks for peoples kindness comment
+**						Kornel Wieliczek
+**						Christoph Hellwig
+**						Adrian Bunk
+**						Andrew Morton
+**						Christoph Hellwig
+**						James Bottomley
+**						Arjan van de Ven
+** 1.20.00.06    3/12/2005       Erich Chen     fix with arcmsr_pci_unmap_dma "unsigned long" cast,
+**						modify PCCB POOL allocated by "dma_alloc_coherent"
+**						(Kornel Wieliczek's comment)
+** 1.20.00.07    3/23/2005       Erich Chen     bug fix with arcmsr_scsi_host_template_init
+**						occur segmentation fault,
+**						if RAID adapter does not on PCI slot
+**						and modprobe/rmmod this driver twice.
+**						bug fix enormous stack usage (Adrian Bunk's comment)
+** 1.20.00.08    6/23/2005       Erich Chen     bug fix with abort command,
+**						in case of heavy loading when sata cable
+**						working on low quality connection
+** 1.20.00.09    9/12/2005       Erich Chen     bug fix with abort command handling, firmware version check
+**						and firmware update notify for hardware bug fix
+** 1.20.00.10    9/23/2005       Erich Chen     enhance sysfs function for change driver's max tag Q number.
+**						add DMA_64BIT_MASK for backward compatible with all 2.6.x
+**						add some useful message for abort command
+**						add ioctl code 'ARCMSR_IOCTL_FLUSH_ADAPTER_CACHE'
+**						customer can send this command for sync raid volume data
+** 1.20.00.11    9/29/2005       Erich Chen     by comment of Arjan van de Ven fix incorrect msleep redefine
+**						cast off sizeof(dma_addr_t) condition for 64bit pci_set_dma_mask
+** 1.20.00.12    9/30/2005       Erich Chen     bug fix with 64bit platform's ccbs using if over 4G system memory
+**						change 64bit pci_set_consistent_dma_mask into 32bit
+**						increcct adapter count if adapter initialize fail.
+**						miss edit at arcmsr_build_ccb....
+**						psge += sizeof(struct _SG64ENTRY *) =>
+**						psge += sizeof(struct _SG64ENTRY)
+**						64 bits sg entry would be incorrectly calculated
+**						thanks Kornel Wieliczek give me kindly notify
+**						and detail description
+** 1.20.00.13   11/15/2005       Erich Chen     scheduling pending ccb with FIFO
+**						change the architecture of arcmsr command queue list
+**						for linux standard list
+**						enable usage of pci message signal interrupt
+**						follow Randy.Danlup kindness suggestion cleanup this code
+**************************************************************************

Documentation/scsi/arcmsr_spec.txt

@@ -0,0 +1,574 @@
+*******************************************************************************
+**                            ARECA FIRMWARE SPEC
+*******************************************************************************
+**	Usage of IOP331 adapter
+**	(All In/Out is in IOP331's view)
+**	1. Message 0 --> InitThread message and retrun 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
+**************************************************************************

Documentation/scsi/libsas.txt

@@ -0,0 +1,484 @@
+SAS Layer
+---------
+
+The SAS Layer is a management infrastructure which manages
+SAS LLDDs.  It sits between SCSI Core and SAS LLDDs.  The
+layout is as follows: while SCSI Core is concerned with
+SAM/SPC issues, and a SAS LLDD+sequencer is concerned with
+phy/OOB/link management, the SAS layer is concerned with:
+
+      * SAS Phy/Port/HA event management (LLDD generates,
+        SAS Layer processes),
+      * SAS Port management (creation/destruction),
+      * SAS Domain discovery and revalidation,
+      * SAS Domain device management,
+      * SCSI Host registration/unregistration,
+      * Device registration with SCSI Core (SAS) or libata
+        (SATA), and
+      * Expander management and exporting expander control
+        to user space.
+
+A SAS LLDD is a PCI device driver.  It is concerned with
+phy/OOB management, and vendor specific tasks and generates
+events to the SAS layer.
+
+The SAS Layer does most SAS tasks as outlined in the SAS 1.1
+spec.
+
+The sas_ha_struct describes the SAS LLDD to the SAS layer.
+Most of it is used by the SAS Layer but a few fields need to
+be initialized by the LLDDs.
+
+After initializing your hardware, from the probe() function
+you call sas_register_ha(). It will register your LLDD with
+the SCSI subsystem, creating a SCSI host and it will
+register your SAS driver with the sysfs SAS tree it creates.
+It will then return.  Then you enable your phys to actually
+start OOB (at which point your driver will start calling the
+notify_* event callbacks).
+
+Structure descriptions:
+
+struct sas_phy --------------------
+Normally this is statically embedded to your driver's
+phy structure:
+	struct my_phy {
+	       blah;
+	       struct sas_phy sas_phy;
+	       bleh;
+	};
+And then all the phys are an array of my_phy in your HA
+struct (shown below).
+
+Then as you go along and initialize your phys you also
+initialize the sas_phy struct, along with your own
+phy structure.
+
+In general, the phys are managed by the LLDD and the ports
+are managed by the SAS layer.  So the phys are initialized
+and updated by the LLDD and the ports are initialized and
+updated by the SAS layer.
+
+There is a scheme where the LLDD can RW certain fields,
+and the SAS layer can only read such ones, and vice versa.
+The idea is to avoid unnecessary locking.
+
+enabled -- must be set (0/1)
+id -- must be set [0,MAX_PHYS)
+class, proto, type, role, oob_mode, linkrate -- must be set
+oob_mode --  you set this when OOB has finished and then notify
+the SAS Layer.
+
+sas_addr -- this normally points to an array holding the sas
+address of the phy, possibly somewhere in your my_phy
+struct.
+
+attached_sas_addr -- set this when you (LLDD) receive an
+IDENTIFY frame or a FIS frame, _before_ notifying the SAS
+layer.  The idea is that sometimes the LLDD may want to fake
+or provide a different SAS address on that phy/port and this
+allows it to do this.  At best you should copy the sas
+address from the IDENTIFY frame or maybe generate a SAS
+address for SATA directly attached devices.  The Discover
+process may later change this.
+
+frame_rcvd -- this is where you copy the IDENTIFY/FIS frame
+when you get it; you lock, copy, set frame_rcvd_size and
+unlock the lock, and then call the event.  It is a pointer
+since there's no way to know your hw frame size _exactly_,
+so you define the actual array in your phy struct and let
+this pointer point to it.  You copy the frame from your
+DMAable memory to that area holding the lock.
+
+sas_prim -- this is where primitives go when they're
+received.  See sas.h. Grab the lock, set the primitive,
+release the lock, notify.
+
+port -- this points to the sas_port if the phy belongs
+to a port -- the LLDD only reads this. It points to the
+sas_port this phy is part of.  Set by the SAS Layer.
+
+ha -- may be set; the SAS layer sets it anyway.
+
+lldd_phy -- you should set this to point to your phy so you
+can find your way around faster when the SAS layer calls one
+of your callbacks and passes you a phy.  If the sas_phy is
+embedded you can also use container_of -- whatever you
+prefer.
+
+
+struct sas_port --------------------
+The LLDD doesn't set any fields of this struct -- it only
+reads them.  They should be self explanatory.
+
+phy_mask is 32 bit, this should be enough for now, as I
+haven't heard of a HA having more than 8 phys.
+
+lldd_port -- I haven't found use for that -- maybe other
+LLDD who wish to have internal port representation can make
+use of this.
+
+
+struct sas_ha_struct --------------------
+It normally is statically declared in your own LLDD
+structure describing your adapter:
+struct my_sas_ha {
+       blah;
+       struct sas_ha_struct sas_ha;
+       struct my_phy phys[MAX_PHYS];
+       struct sas_port sas_ports[MAX_PHYS]; /* (1) */
+       bleh;
+};
+
+(1) If your LLDD doesn't have its own port representation.
+
+What needs to be initialized (sample function given below).
+
+pcidev
+sas_addr -- since the SAS layer doesn't want to mess with
+	 memory allocation, etc, this points to statically
+	 allocated array somewhere (say in your host adapter
+	 structure) and holds the SAS address of the host
+	 adapter as given by you or the manufacturer, etc.
+sas_port
+sas_phy -- an array of pointers to structures. (see
+	note above on sas_addr).
+	These must be set.  See more notes below.
+num_phys -- the number of phys present in the sas_phy array,
+	 and the number of ports present in the sas_port
+	 array.  There can be a maximum num_phys ports (one per
+	 port) so we drop the num_ports, and only use
+	 num_phys.
+
+The event interface:
+
+	/* LLDD calls these to notify the class of an event. */
+	void (*notify_ha_event)(struct sas_ha_struct *, enum ha_event);
+	void (*notify_port_event)(struct sas_phy *, enum port_event);
+	void (*notify_phy_event)(struct sas_phy *, enum phy_event);
+
+When sas_register_ha() returns, those are set and can be
+called by the LLDD to notify the SAS layer of such events
+the SAS layer.
+
+The port notification:
+
+	/* The class calls these to notify the LLDD of an event. */
+	void (*lldd_port_formed)(struct sas_phy *);
+	void (*lldd_port_deformed)(struct sas_phy *);
+
+If the LLDD wants notification when a port has been formed
+or deformed it sets those to a function satisfying the type.
+
+A SAS LLDD should also implement at least one of the Task
+Management Functions (TMFs) described in SAM:
+
+	/* Task Management Functions. Must be called from process context. */
+	int (*lldd_abort_task)(struct sas_task *);
+	int (*lldd_abort_task_set)(struct domain_device *, u8 *lun);
+	int (*lldd_clear_aca)(struct domain_device *, u8 *lun);
+	int (*lldd_clear_task_set)(struct domain_device *, u8 *lun);
+	int (*lldd_I_T_nexus_reset)(struct domain_device *);
+	int (*lldd_lu_reset)(struct domain_device *, u8 *lun);
+	int (*lldd_query_task)(struct sas_task *);
+
+For more information please read SAM from T10.org.
+
+Port and Adapter management:
+
+	/* Port and Adapter management */
+	int (*lldd_clear_nexus_port)(struct sas_port *);
+	int (*lldd_clear_nexus_ha)(struct sas_ha_struct *);
+
+A SAS LLDD should implement at least one of those.
+
+Phy management:
+
+	/* Phy management */
+	int (*lldd_control_phy)(struct sas_phy *, enum phy_func);
+
+lldd_ha -- set this to point to your HA struct. You can also
+use container_of if you embedded it as shown above.
+
+A sample initialization and registration function
+can look like this (called last thing from probe())
+*but* before you enable the phys to do OOB:
+
+static int register_sas_ha(struct my_sas_ha *my_ha)
+{
+	int i;
+	static struct sas_phy   *sas_phys[MAX_PHYS];
+	static struct sas_port  *sas_ports[MAX_PHYS];
+
+	my_ha->sas_ha.sas_addr = &my_ha->sas_addr[0];
+
+	for (i = 0; i < MAX_PHYS; i++) {
+		sas_phys[i] = &my_ha->phys[i].sas_phy;
+		sas_ports[i] = &my_ha->sas_ports[i];
+	}
+
+	my_ha->sas_ha.sas_phy  = sas_phys;
+	my_ha->sas_ha.sas_port = sas_ports;
+	my_ha->sas_ha.num_phys = MAX_PHYS;
+
+	my_ha->sas_ha.lldd_port_formed = my_port_formed;
+
+	my_ha->sas_ha.lldd_dev_found = my_dev_found;
+	my_ha->sas_ha.lldd_dev_gone = my_dev_gone;
+
+	my_ha->sas_ha.lldd_max_execute_num = lldd_max_execute_num; (1)
+
+	my_ha->sas_ha.lldd_queue_size = ha_can_queue;
+	my_ha->sas_ha.lldd_execute_task = my_execute_task;
+
+	my_ha->sas_ha.lldd_abort_task     = my_abort_task;
+	my_ha->sas_ha.lldd_abort_task_set = my_abort_task_set;
+	my_ha->sas_ha.lldd_clear_aca      = my_clear_aca;
+	my_ha->sas_ha.lldd_clear_task_set = my_clear_task_set;
+	my_ha->sas_ha.lldd_I_T_nexus_reset= NULL; (2)
+	my_ha->sas_ha.lldd_lu_reset       = my_lu_reset;
+	my_ha->sas_ha.lldd_query_task     = my_query_task;
+
+	my_ha->sas_ha.lldd_clear_nexus_port = my_clear_nexus_port;
+	my_ha->sas_ha.lldd_clear_nexus_ha = my_clear_nexus_ha;
+
+	my_ha->sas_ha.lldd_control_phy = my_control_phy;
+
+	return sas_register_ha(&my_ha->sas_ha);
+}
+
+(1) This is normally a LLDD parameter, something of the
+lines of a task collector.  What it tells the SAS Layer is
+whether the SAS layer should run in Direct Mode (default:
+value 0 or 1) or Task Collector Mode (value greater than 1).
+
+In Direct Mode, the SAS Layer calls Execute Task as soon as
+it has a command to send to the SDS, _and_ this is a single
+command, i.e. not linked.
+
+Some hardware (e.g. aic94xx) has the capability to DMA more
+than one task at a time (interrupt) from host memory.  Task
+Collector Mode is an optional feature for HAs which support
+this in their hardware.  (Again, it is completely optional
+even if your hardware supports it.)
+
+In Task Collector Mode, the SAS Layer would do _natural_
+coalescing of tasks and at the appropriate moment it would
+call your driver to DMA more than one task in a single HA
+interrupt. DMBS may want to use this by insmod/modprobe
+setting the lldd_max_execute_num to something greater than
+1.
+
+(2) SAS 1.1 does not define I_T Nexus Reset TMF.
+
+Events
+------
+
+Events are _the only way_ a SAS LLDD notifies the SAS layer
+of anything.  There is no other method or way a LLDD to tell
+the SAS layer of anything happening internally or in the SAS
+domain.
+
+Phy events:
+	PHYE_LOSS_OF_SIGNAL, (C)
+	PHYE_OOB_DONE,
+	PHYE_OOB_ERROR,      (C)
+	PHYE_SPINUP_HOLD.
+
+Port events, passed on a _phy_:
+	PORTE_BYTES_DMAED,      (M)
+	PORTE_BROADCAST_RCVD,   (E)
+	PORTE_LINK_RESET_ERR,   (C)
+	PORTE_TIMER_EVENT,      (C)
+	PORTE_HARD_RESET.
+
+Host Adapter event:
+	HAE_RESET
+
+A SAS LLDD should be able to generate
+	- at least one event from group C (choice),
+	- events marked M (mandatory) are mandatory (only one),
+	- events marked E (expander) if it wants the SAS layer
+	  to handle domain revalidation (only one such).
+	- Unmarked events are optional.
+
+Meaning:
+
+HAE_RESET -- when your HA got internal error and was reset.
+
+PORTE_BYTES_DMAED -- on receiving an IDENTIFY/FIS frame
+PORTE_BROADCAST_RCVD -- on receiving a primitive
+PORTE_LINK_RESET_ERR -- timer expired, loss of signal, loss
+of DWS, etc. (*)
+PORTE_TIMER_EVENT -- DWS reset timeout timer expired (*)
+PORTE_HARD_RESET -- Hard Reset primitive received.
+
+PHYE_LOSS_OF_SIGNAL -- the device is gone (*)
+PHYE_OOB_DONE -- OOB went fine and oob_mode is valid
+PHYE_OOB_ERROR -- Error while doing OOB, the device probably
+got disconnected. (*)
+PHYE_SPINUP_HOLD -- SATA is present, COMWAKE not sent.
+
+(*) should set/clear the appropriate fields in the phy,
+    or alternatively call the inlined sas_phy_disconnected()
+    which is just a helper, from their tasklet.
+
+The Execute Command SCSI RPC:
+
+	int (*lldd_execute_task)(struct sas_task *, int num,
+				 unsigned long gfp_flags);
+
+Used to queue a task to the SAS LLDD.  @task is the tasks to
+be executed.  @num should be the number of tasks being
+queued at this function call (they are linked listed via
+task::list), @gfp_mask should be the gfp_mask defining the
+context of the caller.
+
+This function should implement the Execute Command SCSI RPC,
+or if you're sending a SCSI Task as linked commands, you
+should also use this function.
+
+That is, when lldd_execute_task() is called, the command(s)
+go out on the transport *immediately*.  There is *no*
+queuing of any sort and at any level in a SAS LLDD.
+
+The use of task::list is two-fold, one for linked commands,
+the other discussed below.
+
+It is possible to queue up more than one task at a time, by
+initializing the list element of struct sas_task, and
+passing the number of tasks enlisted in this manner in num.
+
+Returns: -SAS_QUEUE_FULL, -ENOMEM, nothing was queued;
+	 0, the task(s) were queued.
+
+If you want to pass num > 1, then either
+A) you're the only caller of this function and keep track
+   of what you've queued to the LLDD, or
+B) you know what you're doing and have a strategy of
+   retrying.
+
+As opposed to queuing one task at a time (function call),
+batch queuing of tasks, by having num > 1, greatly
+simplifies LLDD code, sequencer code, and _hardware design_,
+and has some performance advantages in certain situations
+(DBMS).
+
+The LLDD advertises if it can take more than one command at
+a time at lldd_execute_task(), by setting the
+lldd_max_execute_num parameter (controlled by "collector"
+module parameter in aic94xx SAS LLDD).
+
+You should leave this to the default 1, unless you know what
+you're doing.
+
+This is a function of the LLDD, to which the SAS layer can
+cater to.
+
+int lldd_queue_size
+	The host adapter's queue size.  This is the maximum
+number of commands the lldd can have pending to domain
+devices on behalf of all upper layers submitting through
+lldd_execute_task().
+
+You really want to set this to something (much) larger than
+1.
+
+This _really_ has absolutely nothing to do with queuing.
+There is no queuing in SAS LLDDs.
+
+struct sas_task {
+	dev -- the device this task is destined to
+	list -- must be initialized (INIT_LIST_HEAD)
+	task_proto -- _one_ of enum sas_proto
+	scatter -- pointer to scatter gather list array
+	num_scatter -- number of elements in scatter
+	total_xfer_len -- total number of bytes expected to be transfered
+	data_dir -- PCI_DMA_...
+	task_done -- callback when the task has finished execution
+};
+
+When an external entity, entity other than the LLDD or the
+SAS Layer, wants to work with a struct domain_device, it
+_must_ call kobject_get() when getting a handle on the
+device and kobject_put() when it is done with the device.
+
+This does two things:
+     A) implements proper kfree() for the device;
+     B) increments/decrements the kref for all players:
+     domain_device
+	all domain_device's ... (if past an expander)
+	    port
+		host adapter
+		     pci device
+			 and up the ladder, etc.
+
+DISCOVERY
+---------
+
+The sysfs tree has the following purposes:
+    a) It shows you the physical layout of the SAS domain at
+       the current time, i.e. how the domain looks in the
+       physical world right now.
+    b) Shows some device parameters _at_discovery_time_.
+
+This is a link to the tree(1) program, very useful in
+viewing the SAS domain:
+ftp://mama.indstate.edu/linux/tree/
+I expect user space applications to actually create a
+graphical interface of this.
+
+That is, the sysfs domain tree doesn't show or keep state if
+you e.g., change the meaning of the READY LED MEANING
+setting, but it does show you the current connection status
+of the domain device.
+
+Keeping internal device state changes is responsibility of
+upper layers (Command set drivers) and user space.
+
+When a device or devices are unplugged from the domain, this
+is reflected in the sysfs tree immediately, and the device(s)
+removed from the system.
+
+The structure domain_device describes any device in the SAS
+domain.  It is completely managed by the SAS layer.  A task
+points to a domain device, this is how the SAS LLDD knows
+where to send the task(s) to.  A SAS LLDD only reads the
+contents of the domain_device structure, but it never creates
+or destroys one.
+
+Expander management from User Space
+-----------------------------------
+
+In each expander directory in sysfs, there is a file called
+"smp_portal".  It is a binary sysfs attribute file, which
+implements an SMP portal (Note: this is *NOT* an SMP port),
+to which user space applications can send SMP requests and
+receive SMP responses.
+
+Functionality is deceptively simple:
+
+1. Build the SMP frame you want to send. The format and layout
+   is described in the SAS spec.  Leave the CRC field equal 0.
+open(2)
+2. Open the expander's SMP portal sysfs file in RW mode.
+write(2)
+3. Write the frame you built in 1.
+read(2)
+4. Read the amount of data you expect to receive for the frame you built.
+   If you receive different amount of data you expected to receive,
+   then there was some kind of error.
+close(2)
+All this process is shown in detail in the function do_smp_func()
+and its callers, in the file "expander_conf.c".
+
+The kernel functionality is implemented in the file
+"sas_expander.c".
+
+The program "expander_conf.c" implements this. It takes one
+argument, the sysfs file name of the SMP portal to the
+expander, and gives expander information, including routing
+tables.
+
+The SMP portal gives you complete control of the expander,
+so please be careful.

block/ll_rw_blk.c

@@ -847,6 +847,35 @@ struct request *blk_queue_find_tag(request_queue_t *q, int tag)
 
 EXPORT_SYMBOL(blk_queue_find_tag);
 
+/**
+ * __blk_free_tags - release a given set of tag maintenance info
+ * @bqt:	the tag map to free
+ *
+ * Tries to free the specified @bqt@.  Returns true if it was
+ * actually freed and false if there are still references using it
+ */
+static int __blk_free_tags(struct blk_queue_tag *bqt)
+{
+	int retval;
+
+	retval = atomic_dec_and_test(&bqt->refcnt);
+	if (retval) {
+		BUG_ON(bqt->busy);
+		BUG_ON(!list_empty(&bqt->busy_list));
+
+		kfree(bqt->tag_index);
+		bqt->tag_index = NULL;
+
+		kfree(bqt->tag_map);
+		bqt->tag_map = NULL;
+
+		kfree(bqt);
+
+	}
+
+	return retval;
+}
+
 /**
  * __blk_queue_free_tags - release tag maintenance info
  * @q:  the request queue for the device
@@ -862,23 +891,28 @@ static void __blk_queue_free_tags(request_queue_t *q)
 	if (!bqt)
 		return;
 
-	if (atomic_dec_and_test(&bqt->refcnt)) {
+	__blk_free_tags(bqt);
-		BUG_ON(bqt->busy);
-		BUG_ON(!list_empty(&bqt->busy_list));
-
-		kfree(bqt->tag_index);
-		bqt->tag_index = NULL;
-
-		kfree(bqt->tag_map);
-		bqt->tag_map = NULL;
-
-		kfree(bqt);
-	}
 
 	q->queue_tags = NULL;
 	q->queue_flags &= ~(1 << QUEUE_FLAG_QUEUED);
 }
 
+
+/**
+ * blk_free_tags - release a given set of tag maintenance info
+ * @bqt:	the tag map to free
+ *
+ * For externally managed @bqt@ frees the map.  Callers of this
+ * function must guarantee to have released all the queues that
+ * might have been using this tag map.
+ */
+void blk_free_tags(struct blk_queue_tag *bqt)
+{
+	if (unlikely(!__blk_free_tags(bqt)))
+		BUG();
+}
+EXPORT_SYMBOL(blk_free_tags);
+
 /**
  * blk_queue_free_tags - release tag maintenance info
  * @q:  the request queue for the device
@@ -901,7 +935,7 @@ init_tag_map(request_queue_t *q, struct blk_queue_tag *tags, int depth)
 	unsigned long *tag_map;
 	int nr_ulongs;
 
-	if (depth > q->nr_requests * 2) {
+	if (q && depth > q->nr_requests * 2) {
 		depth = q->nr_requests * 2;
 		printk(KERN_ERR "%s: adjusted depth to %d\n",
 				__FUNCTION__, depth);
@@ -927,6 +961,38 @@ fail:
 	return -ENOMEM;
 }
 
+static struct blk_queue_tag *__blk_queue_init_tags(struct request_queue *q,
+						   int depth)
+{
+	struct blk_queue_tag *tags;
+
+	tags = kmalloc(sizeof(struct blk_queue_tag), GFP_ATOMIC);
+	if (!tags)
+		goto fail;
+
+	if (init_tag_map(q, tags, depth))
+		goto fail;
+
+	INIT_LIST_HEAD(&tags->busy_list);
+	tags->busy = 0;
+	atomic_set(&tags->refcnt, 1);
+	return tags;
+fail:
+	kfree(tags);
+	return NULL;
+}
+
+/**
+ * blk_init_tags - initialize the tag info for an external tag map
+ * @depth:	the maximum queue depth supported
+ * @tags: the tag to use
+ **/
+struct blk_queue_tag *blk_init_tags(int depth)
+{
+	return __blk_queue_init_tags(NULL, depth);
+}
+EXPORT_SYMBOL(blk_init_tags);
+
 /**
  * blk_queue_init_tags - initialize the queue tag info
  * @q:  the request queue for the device
@@ -941,16 +1007,10 @@ int blk_queue_init_tags(request_queue_t *q, int depth,
 	BUG_ON(tags && q->queue_tags && tags != q->queue_tags);
 
 	if (!tags && !q->queue_tags) {
-		tags = kmalloc(sizeof(struct blk_queue_tag), GFP_ATOMIC);
+		tags = __blk_queue_init_tags(q, depth);
+
 		if (!tags)
 			goto fail;
-
-		if (init_tag_map(q, tags, depth))
-			goto fail;
-
-		INIT_LIST_HEAD(&tags->busy_list);
-		tags->busy = 0;
-		atomic_set(&tags->refcnt, 1);
 	} else if (q->queue_tags) {
 		if ((rc = blk_queue_resize_tags(q, depth)))
 			return rc;
@@ -1001,6 +1061,13 @@ int blk_queue_resize_tags(request_queue_t *q, int new_depth)
 		return 0;
 	}
 
+	/*
+	 * Currently cannot replace a shared tag map with a new
+	 * one, so error out if this is the case
+	 */
+	if (atomic_read(&bqt->refcnt) != 1)
+		return -EBUSY;
+
 	/*
 	 * save the old state info, so we can copy it back
 	 */

drivers/block/DAC960.c

@@ -7115,7 +7115,7 @@ static struct pci_device_id DAC960_id_table[] = {
 	{
 		.vendor 	= PCI_VENDOR_ID_MYLEX,
 		.device		= PCI_DEVICE_ID_MYLEX_DAC960_GEM,
-		.subvendor	= PCI_ANY_ID,
+		.subvendor	= PCI_VENDOR_ID_MYLEX,
 		.subdevice	= PCI_ANY_ID,
 		.driver_data	= (unsigned long) &DAC960_GEM_privdata,
 	},

drivers/block/cciss_scsi.c

@@ -251,10 +251,6 @@ scsi_cmd_stack_free(int ctlr)
 	stk->pool = NULL;
 }
 
-/* scsi_device_types comes from scsi.h */
-#define DEVICETYPE(n) (n<0 || n>MAX_SCSI_DEVICE_CODE) ? \
-	"Unknown" : scsi_device_types[n]
-
 #if 0
 static int xmargin=8;
 static int amargin=60;
@@ -389,7 +385,7 @@ cciss_scsi_add_entry(int ctlr, int hostno,
 	   time anyway (the scsi layer's inquiries will show that info) */
 	if (hostno != -1)
 		printk("cciss%d: %s device c%db%dt%dl%d added.\n", 
-			ctlr, DEVICETYPE(sd->devtype), hostno, 
+			ctlr, scsi_device_type(sd->devtype), hostno,
 			sd->bus, sd->target, sd->lun);
 	return 0;
 }
@@ -407,7 +403,7 @@ cciss_scsi_remove_entry(int ctlr, int hostno, int entry)
 		ccissscsi[ctlr].dev[i] = ccissscsi[ctlr].dev[i+1];
 	ccissscsi[ctlr].ndevices--;
 	printk("cciss%d: %s device c%db%dt%dl%d removed.\n",
-		ctlr, DEVICETYPE(sd.devtype), hostno, 
+		ctlr, scsi_device_type(sd.devtype), hostno,
 			sd.bus, sd.target, sd.lun);
 }
 
@@ -458,7 +454,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
 		if (found == 0) { /* device no longer present. */ 
 			changes++;
 			/* printk("cciss%d: %s device c%db%dt%dl%d removed.\n",
-				ctlr, DEVICETYPE(csd->devtype), hostno, 
+				ctlr, scsi_device_type(csd->devtype), hostno,
 					csd->bus, csd->target, csd->lun); */
 			cciss_scsi_remove_entry(ctlr, hostno, i);
 			/* note, i not incremented */
@@ -468,7 +464,7 @@ adjust_cciss_scsi_table(int ctlr, int hostno,
 			printk("cciss%d: device c%db%dt%dl%d type changed "
 				"(device type now %s).\n",
 				ctlr, hostno, csd->bus, csd->target, csd->lun,
-					DEVICETYPE(csd->devtype));
+					scsi_device_type(csd->devtype));
 			csd->devtype = sd[j].devtype;
 			i++;	/* so just move along. */
 		} else 		/* device is same as it ever was, */
@@ -1098,7 +1094,7 @@ cciss_update_non_disk_devices(int cntl_num, int hostno)
 			if (ncurrent >= CCISS_MAX_SCSI_DEVS_PER_HBA) {
 				printk(KERN_INFO "cciss%d: %s ignored, "
 					"too many devices.\n", cntl_num,
-					DEVICETYPE(devtype));
+					scsi_device_type(devtype));
 				break;
 			}
 			memcpy(&currentsd[ncurrent].scsi3addr[0], 

drivers/infiniband/ulp/iser/iscsi_iser.c

@@ -141,18 +141,11 @@ iscsi_iser_cmd_init(struct iscsi_cmd_task *ctask)
 
 	if (sc->sc_data_direction == DMA_TO_DEVICE) {
 		BUG_ON(ctask->total_length == 0);
-		/* bytes to be sent via RDMA operations */
-		iser_ctask->rdma_data_count = ctask->total_length -
-					 ctask->imm_count -
-					 ctask->unsol_count;
 
-		debug_scsi("cmd [itt %x total %d imm %d unsol_data %d "
+		debug_scsi("cmd [itt %x total %d imm %d unsol_data %d\n",
-			   "rdma_data %d]\n",
 			   ctask->itt, ctask->total_length, ctask->imm_count,
-			   ctask->unsol_count, iser_ctask->rdma_data_count);
+			   ctask->unsol_count);
-	} else
+	}
-		/* bytes to be sent via RDMA operations */
-		iser_ctask->rdma_data_count = ctask->total_length;
 
 	iser_ctask_rdma_init(iser_ctask);
 }
@@ -196,13 +189,10 @@ iscsi_iser_ctask_xmit_unsol_data(struct iscsi_conn *conn,
 {
 	struct iscsi_data  hdr;
 	int error = 0;
-	struct iscsi_iser_cmd_task *iser_ctask = ctask->dd_data;
 
 	/* Send data-out PDUs while there's still unsolicited data to send */
 	while (ctask->unsol_count > 0) {
-		iscsi_prep_unsolicit_data_pdu(ctask, &hdr,
+		iscsi_prep_unsolicit_data_pdu(ctask, &hdr);
-					      iser_ctask->rdma_data_count);
-
 		debug_scsi("Sending data-out: itt 0x%x, data count %d\n",
 			   hdr.itt, ctask->data_count);
 

drivers/infiniband/ulp/iser/iscsi_iser.h

@@ -262,7 +262,6 @@ struct iscsi_iser_conn {
 struct iscsi_iser_cmd_task {
 	struct iser_desc             desc;
 	struct iscsi_iser_conn	     *iser_conn;
-	int			     rdma_data_count;/* RDMA bytes           */
 	enum iser_task_status 	     status;
 	int                          command_sent;  /* set if command  sent  */
 	int                          dir[ISER_DIRS_NUM];      /* set if dir use*/

drivers/message/fusion/mptfc.c

@@ -162,7 +162,13 @@ static struct fc_function_template mptfc_transport_functions = {
 	.show_starget_port_id = 1,
 	.set_rport_dev_loss_tmo = mptfc_set_rport_loss_tmo,
 	.show_rport_dev_loss_tmo = 1,
-
+	.show_host_supported_speeds = 1,
+	.show_host_maxframe_size = 1,
+	.show_host_speed = 1,
+	.show_host_fabric_name = 1,
+	.show_host_port_type = 1,
+	.show_host_port_state = 1,
+	.show_host_symbolic_name = 1,
 };
 
 static void
@@ -839,33 +845,95 @@ mptfc_SetFcPortPage1_defaults(MPT_ADAPTER *ioc)
 static void
 mptfc_init_host_attr(MPT_ADAPTER *ioc,int portnum)
 {
-	unsigned class = 0, cos = 0;
+	unsigned	class = 0;
+	unsigned	cos = 0;
+	unsigned	speed;
+	unsigned	port_type;
+	unsigned	port_state;
+	FCPortPage0_t	*pp0;
+	struct Scsi_Host *sh;
+	char		*sn;
 
 	/* don't know what to do as only one scsi (fc) host was allocated */
 	if (portnum != 0)
 		return;
 
-	class = ioc->fc_port_page0[portnum].SupportedServiceClass;
+	pp0 = &ioc->fc_port_page0[portnum];
+	sh = ioc->sh;
+
+	sn = fc_host_symbolic_name(sh);
+	snprintf(sn, FC_SYMBOLIC_NAME_SIZE, "%s %s%08xh",
+	    ioc->prod_name,
+	    MPT_FW_REV_MAGIC_ID_STRING,
+	    ioc->facts.FWVersion.Word);
+
+	fc_host_tgtid_bind_type(sh) = FC_TGTID_BIND_BY_WWPN;
+
+	fc_host_maxframe_size(sh) = pp0->MaxFrameSize;
+
+	fc_host_node_name(sh) =
+	    	(u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
+
+	fc_host_port_name(sh) =
+	    	(u64)pp0->WWPN.High << 32 | (u64)pp0->WWPN.Low;
+
+	fc_host_port_id(sh) = pp0->PortIdentifier;
+
+	class = pp0->SupportedServiceClass;
 	if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_1)
 		cos |= FC_COS_CLASS1;
 	if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_2)
 		cos |= FC_COS_CLASS2;
 	if (class & MPI_FCPORTPAGE0_SUPPORT_CLASS_3)
 		cos |= FC_COS_CLASS3;
+	fc_host_supported_classes(sh) = cos;
 
-	fc_host_node_name(ioc->sh) =
+	if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_1GBIT)
-	    	(u64)ioc->fc_port_page0[portnum].WWNN.High << 32
+		speed = FC_PORTSPEED_1GBIT;
-		    | (u64)ioc->fc_port_page0[portnum].WWNN.Low;
+	else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_2GBIT)
+		speed = FC_PORTSPEED_2GBIT;
+	else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_4GBIT)
+		speed = FC_PORTSPEED_4GBIT;
+	else if (pp0->CurrentSpeed == MPI_FCPORTPAGE0_CURRENT_SPEED_10GBIT)
+		speed = FC_PORTSPEED_10GBIT;
+	else
+		speed = FC_PORTSPEED_UNKNOWN;
+	fc_host_speed(sh) = speed;
 
-	fc_host_port_name(ioc->sh) =
+	speed = 0;
-	    	(u64)ioc->fc_port_page0[portnum].WWPN.High << 32
+	if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_1GBIT_SPEED)
-		    | (u64)ioc->fc_port_page0[portnum].WWPN.Low;
+		speed |= FC_PORTSPEED_1GBIT;
+	if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_2GBIT_SPEED)
+		speed |= FC_PORTSPEED_2GBIT;
+	if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_4GBIT_SPEED)
+		speed |= FC_PORTSPEED_4GBIT;
+	if (pp0->SupportedSpeeds & MPI_FCPORTPAGE0_SUPPORT_10GBIT_SPEED)
+		speed |= FC_PORTSPEED_10GBIT;
+	fc_host_supported_speeds(sh) = speed;
 
-	fc_host_port_id(ioc->sh) = ioc->fc_port_page0[portnum].PortIdentifier;
+	port_state = FC_PORTSTATE_UNKNOWN;
+	if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_ONLINE)
+		port_state = FC_PORTSTATE_ONLINE;
+	else if (pp0->PortState == MPI_FCPORTPAGE0_PORTSTATE_OFFLINE)
+		port_state = FC_PORTSTATE_LINKDOWN;
+	fc_host_port_state(sh) = port_state;
 
-	fc_host_supported_classes(ioc->sh) = cos;
+	port_type = FC_PORTTYPE_UNKNOWN;
+	if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_POINT_TO_POINT)
+		port_type = FC_PORTTYPE_PTP;
+	else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PRIVATE_LOOP)
+		port_type = FC_PORTTYPE_LPORT;
+	else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_PUBLIC_LOOP)
+		port_type = FC_PORTTYPE_NLPORT;
+	else if (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_ATTACH_FABRIC_DIRECT)
+		port_type = FC_PORTTYPE_NPORT;
+	fc_host_port_type(sh) = port_type;
+
+	fc_host_fabric_name(sh) =
+	    (pp0->Flags & MPI_FCPORTPAGE0_FLAGS_FABRIC_WWN_VALID) ?
+		(u64) pp0->FabricWWNN.High << 32 | (u64) pp0->FabricWWPN.Low :
+		(u64)pp0->WWNN.High << 32 | (u64)pp0->WWNN.Low;
 
-	fc_host_tgtid_bind_type(ioc->sh) = FC_TGTID_BIND_BY_WWPN;
 }
 
 static void

drivers/message/fusion/mptsas.c

@@ -852,6 +852,10 @@ static int mptsas_get_linkerrors(struct sas_phy *phy)
 	dma_addr_t dma_handle;
 	int error;
 
+	/* FIXME: only have link errors on local phys */
+	if (!scsi_is_sas_phy_local(phy))
+		return -EINVAL;
+
 	hdr.PageVersion = MPI_SASPHY1_PAGEVERSION;
 	hdr.ExtPageLength = 0;
 	hdr.PageNumber = 1 /* page number 1*/;
@@ -924,6 +928,10 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
 	unsigned long timeleft;
 	int error = -ERESTARTSYS;
 
+	/* FIXME: fusion doesn't allow non-local phy reset */
+	if (!scsi_is_sas_phy_local(phy))
+		return -EINVAL;
+
 	/* not implemented for expanders */
 	if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP)
 		return -ENXIO;
@@ -1570,9 +1578,6 @@ static int mptsas_probe_one_phy(struct device *dev,
 
 	if (!phy_info->phy) {
 
-		if (local)
-			phy->local_attached = 1;
-
 		error = sas_phy_add(phy);
 		if (error) {
 			sas_phy_free(phy);
@@ -1642,14 +1647,18 @@ static int mptsas_probe_one_phy(struct device *dev,
 
 			for (i = 0; i < port_info->num_phys; i++)
 				if (port_info->phy_info[i].identify.sas_address ==
-				    identify.sas_address)
+				    identify.sas_address) {
+					sas_port_mark_backlink(port);
 					goto out;
+				}
 
 		} else if (scsi_is_sas_rphy(parent)) {
 			struct sas_rphy *parent_rphy = dev_to_rphy(parent);
 			if (identify.sas_address ==
-			    parent_rphy->identify.sas_address)
+			    parent_rphy->identify.sas_address) {
+				sas_port_mark_backlink(port);
 				goto out;
+			}
 		}
 
 		switch (identify.device_type) {

drivers/scsi/BusLogic.c

@@ -2176,6 +2176,7 @@ static int __init BusLogic_init(void)
 {
 	int BusLogicHostAdapterCount = 0, DriverOptionsIndex = 0, ProbeIndex;
 	struct BusLogic_HostAdapter *PrototypeHostAdapter;
+	int ret = 0;
 
 #ifdef MODULE
 	if (BusLogic)
@@ -2282,25 +2283,49 @@ static int __init BusLogic_init(void)
 		   perform Target Device Inquiry.
 		 */
 		if (BusLogic_ReadHostAdapterConfiguration(HostAdapter) &&
-		    BusLogic_ReportHostAdapterConfiguration(HostAdapter) && BusLogic_AcquireResources(HostAdapter) && BusLogic_CreateInitialCCBs(HostAdapter) && BusLogic_InitializeHostAdapter(HostAdapter) && BusLogic_TargetDeviceInquiry(HostAdapter)) {
+		    BusLogic_ReportHostAdapterConfiguration(HostAdapter) &&
+		    BusLogic_AcquireResources(HostAdapter) &&
+		    BusLogic_CreateInitialCCBs(HostAdapter) &&
+		    BusLogic_InitializeHostAdapter(HostAdapter) &&
+		    BusLogic_TargetDeviceInquiry(HostAdapter)) {
 			/*
 			   Initialization has been completed successfully.  Release and
 			   re-register usage of the I/O Address range so that the Model
 			   Name of the Host Adapter will appear, and initialize the SCSI
 			   Host structure.
 			 */
-			release_region(HostAdapter->IO_Address, HostAdapter->AddressCount);
+			release_region(HostAdapter->IO_Address,
-			if (!request_region(HostAdapter->IO_Address, HostAdapter->AddressCount, HostAdapter->FullModelName)) {
+				       HostAdapter->AddressCount);
-				printk(KERN_WARNING "BusLogic: Release and re-register of " "port 0x%04lx failed \n", (unsigned long) HostAdapter->IO_Address);
+			if (!request_region(HostAdapter->IO_Address,
+					    HostAdapter->AddressCount,
+					    HostAdapter->FullModelName)) {
+				printk(KERN_WARNING
+					"BusLogic: Release and re-register of "
+					"port 0x%04lx failed \n",
+					(unsigned long)HostAdapter->IO_Address);
 				BusLogic_DestroyCCBs(HostAdapter);
 				BusLogic_ReleaseResources(HostAdapter);
 				list_del(&HostAdapter->host_list);
 				scsi_host_put(Host);
+				ret = -ENOMEM;
 			} else {
-				BusLogic_InitializeHostStructure(HostAdapter, Host);
+				BusLogic_InitializeHostStructure(HostAdapter,
-				scsi_add_host(Host, HostAdapter->PCI_Device ? &HostAdapter->PCI_Device->dev : NULL);
+								 Host);
-				scsi_scan_host(Host);
+				if (scsi_add_host(Host, HostAdapter->PCI_Device
-				BusLogicHostAdapterCount++;
+						? &HostAdapter->PCI_Device->dev
+						  : NULL)) {
+					printk(KERN_WARNING
+					       "BusLogic: scsi_add_host()"
+					       "failed!\n");
+					BusLogic_DestroyCCBs(HostAdapter);
+					BusLogic_ReleaseResources(HostAdapter);
+					list_del(&HostAdapter->host_list);
+					scsi_host_put(Host);
+					ret = -ENODEV;
+				} else {
+					scsi_scan_host(Host);
+					BusLogicHostAdapterCount++;
+				}
 			}
 		} else {
 			/*
@@ -2315,12 +2340,13 @@ static int __init BusLogic_init(void)
 			BusLogic_ReleaseResources(HostAdapter);
 			list_del(&HostAdapter->host_list);
 			scsi_host_put(Host);
+			ret = -ENODEV;
 		}
 	}
 	kfree(PrototypeHostAdapter);
 	kfree(BusLogic_ProbeInfoList);
 	BusLogic_ProbeInfoList = NULL;
-	return 0;
+	return ret;
 }
 
 
@@ -2954,6 +2980,7 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou
 }
 
 
+#if 0
 /*
   BusLogic_AbortCommand aborts Command if possible.
 */
@@ -3024,6 +3051,7 @@ static int BusLogic_AbortCommand(struct scsi_cmnd *Command)
 	return SUCCESS;
 }
 
+#endif
 /*
   BusLogic_ResetHostAdapter resets Host Adapter if possible, marking all
   currently executing SCSI Commands as having been Reset.

drivers/scsi/Kconfig

@@ -27,6 +27,11 @@ config SCSI
 	  However, do not compile this as a module if your root file system
 	  (the one containing the directory /) is located on a SCSI device.
 
+config SCSI_NETLINK
+	bool
+	default	n
+	select NET
+
 config SCSI_PROC_FS
 	bool "legacy /proc/scsi/ support"
 	depends on SCSI && PROC_FS
@@ -209,7 +214,7 @@ config SCSI_LOGGING
 	  there should be no noticeable performance impact as long as you have
 	  logging turned off.
 
-menu "SCSI Transport Attributes"
+menu "SCSI Transports"
 	depends on SCSI
 
 config SCSI_SPI_ATTRS
@@ -222,6 +227,7 @@ config SCSI_SPI_ATTRS
 config SCSI_FC_ATTRS
 	tristate "FiberChannel Transport Attributes"
 	depends on SCSI
+	select SCSI_NETLINK
 	help
 	  If you wish to export transport-specific information about
 	  each attached FiberChannel device to sysfs, say Y.
@@ -242,6 +248,8 @@ config SCSI_SAS_ATTRS
 	  If you wish to export transport-specific information about
 	  each attached SAS device to sysfs, say Y.
 
+source "drivers/scsi/libsas/Kconfig"
+
 endmenu
 
 menu "SCSI low-level drivers"
@@ -431,6 +439,7 @@ config SCSI_AIC7XXX_OLD
 	  module will be called aic7xxx_old.
 
 source "drivers/scsi/aic7xxx/Kconfig.aic79xx"
+source "drivers/scsi/aic94xx/Kconfig"
 
 # All the I2O code and drivers do not seem to be 64bit safe.
 config SCSI_DPT_I2O
@@ -469,6 +478,20 @@ config SCSI_IN2000
 	  To compile this driver as a module, choose M here: the
 	  module will be called in2000.
 
+config SCSI_ARCMSR
+	tristate "ARECA ARC11X0[PCI-X]/ARC12X0[PCI-EXPRESS] SATA-RAID support"
+	depends on PCI && SCSI
+	help
+	  This driver supports all of ARECA's SATA RAID controller cards.
+	  This is an ARECA-maintained driver by Erich Chen.
+	  If you have any problems, please mail to: < erich@areca.com.tw >
+	  Areca supports Linux RAID config tools.
+
+	  < http://www.areca.com.tw >
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called arcmsr (modprobe arcmsr).
+
 source "drivers/scsi/megaraid/Kconfig.megaraid"
 
 config SCSI_SATA
@@ -1053,6 +1076,13 @@ config 53C700_LE_ON_BE
 	depends on SCSI_LASI700
 	default y
 
+config SCSI_STEX
+	tristate "Promise SuperTrak EX Series support"
+	depends on PCI && SCSI
+	---help---
+	  This driver supports Promise SuperTrak EX8350/8300/16350/16300
+	  Storage controllers.
+
 config SCSI_SYM53C8XX_2
 	tristate "SYM53C8XX Version 2 SCSI support"
 	depends on PCI && SCSI

drivers/scsi/Makefile

@@ -32,6 +32,7 @@ obj-$(CONFIG_SCSI_SPI_ATTRS)	+= scsi_transport_spi.o
 obj-$(CONFIG_SCSI_FC_ATTRS) 	+= scsi_transport_fc.o
 obj-$(CONFIG_SCSI_ISCSI_ATTRS)	+= scsi_transport_iscsi.o
 obj-$(CONFIG_SCSI_SAS_ATTRS)	+= scsi_transport_sas.o
+obj-$(CONFIG_SCSI_SAS_LIBSAS)	+= libsas/
 
 obj-$(CONFIG_ISCSI_TCP) 	+= libiscsi.o	iscsi_tcp.o
 obj-$(CONFIG_INFINIBAND_ISER) 	+= libiscsi.o
@@ -59,6 +60,7 @@ obj-$(CONFIG_SCSI_PSI240I)	+= psi240i.o
 obj-$(CONFIG_SCSI_BUSLOGIC)	+= BusLogic.o
 obj-$(CONFIG_SCSI_DPT_I2O)	+= dpt_i2o.o
 obj-$(CONFIG_SCSI_U14_34F)	+= u14-34f.o
+obj-$(CONFIG_SCSI_ARCMSR)	+= arcmsr/
 obj-$(CONFIG_SCSI_ULTRASTOR)	+= ultrastor.o
 obj-$(CONFIG_SCSI_AHA152X)	+= aha152x.o
 obj-$(CONFIG_SCSI_AHA1542)	+= aha1542.o
@@ -67,6 +69,7 @@ obj-$(CONFIG_SCSI_AIC7XXX)	+= aic7xxx/
 obj-$(CONFIG_SCSI_AIC79XX)	+= aic7xxx/
 obj-$(CONFIG_SCSI_AACRAID)	+= aacraid/
 obj-$(CONFIG_SCSI_AIC7XXX_OLD)	+= aic7xxx_old.o
+obj-$(CONFIG_SCSI_AIC94XX)	+= aic94xx/
 obj-$(CONFIG_SCSI_IPS)		+= ips.o
 obj-$(CONFIG_SCSI_FD_MCS)	+= fd_mcs.o
 obj-$(CONFIG_SCSI_FUTURE_DOMAIN)+= fdomain.o
@@ -138,6 +141,7 @@ obj-$(CONFIG_SCSI_SATA_ULI)	+= libata.o sata_uli.o
 obj-$(CONFIG_SCSI_SATA_MV)	+= libata.o sata_mv.o
 obj-$(CONFIG_SCSI_PDC_ADMA)	+= libata.o pdc_adma.o
 obj-$(CONFIG_SCSI_HPTIOP)	+= hptiop.o
+obj-$(CONFIG_SCSI_STEX)		+= stex.o
 
 obj-$(CONFIG_ARM)		+= arm/
 
@@ -155,6 +159,7 @@ scsi_mod-y			+= scsi.o hosts.o scsi_ioctl.o constants.o \
 				   scsicam.o scsi_error.o scsi_lib.o \
 				   scsi_scan.o scsi_sysfs.o \
 				   scsi_devinfo.o
+scsi_mod-$(CONFIG_SCSI_NETLINK)	+= scsi_netlink.o
 scsi_mod-$(CONFIG_SYSCTL)	+= scsi_sysctl.o
 scsi_mod-$(CONFIG_SCSI_PROC_FS)	+= scsi_proc.o
 

drivers/scsi/a2091.c

@@ -40,7 +40,7 @@ static irqreturn_t a2091_intr (int irq, void *_instance, struct pt_regs *fp)
     return IRQ_HANDLED;
 }
 
-static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
+static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
     unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
     unsigned long addr = virt_to_bus(cmd->SCp.ptr);
@@ -115,7 +115,7 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
     return 0;
 }
 
-static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt, 
+static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 		      int status)
 {
     /* disable SCSI interrupts */
@@ -217,7 +217,7 @@ int __init a2091_detect(struct scsi_host_template *tpnt)
     return num_a2091;
 }
 
-static int a2091_bus_reset(Scsi_Cmnd *cmd)
+static int a2091_bus_reset(struct scsi_cmnd *cmd)
 {
 	/* FIXME perform bus-specific reset */
 

drivers/scsi/a2091.h

@@ -13,10 +13,6 @@
 
 int a2091_detect(struct scsi_host_template *);
 int a2091_release(struct Scsi_Host *);
-const char *wd33c93_info(void);
-int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
-int wd33c93_abort(Scsi_Cmnd *);
-int wd33c93_reset(Scsi_Cmnd *, unsigned int);
 
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN 2

drivers/scsi/a3000.c

@@ -44,7 +44,7 @@ static irqreturn_t a3000_intr (int irq, void *dummy, struct pt_regs *fp)
 	return IRQ_NONE;
 }
 
-static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
+static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
     unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
     unsigned long addr = virt_to_bus(cmd->SCp.ptr);
@@ -110,8 +110,8 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
     return 0;
 }
 
-static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
+static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
-		      int status)
+		     int status)
 {
     /* disable SCSI interrupts */
     unsigned short cntr = CNTR_PDMD;
@@ -205,7 +205,7 @@ fail_register:
     return 0;
 }
 
-static int a3000_bus_reset(Scsi_Cmnd *cmd)
+static int a3000_bus_reset(struct scsi_cmnd *cmd)
 {
 	/* FIXME perform bus-specific reset */
 	

drivers/scsi/a3000.h

@@ -13,10 +13,6 @@
 
 int a3000_detect(struct scsi_host_template *);
 int a3000_release(struct Scsi_Host *);
-const char *wd33c93_info(void);
-int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
-int wd33c93_abort(Scsi_Cmnd *);
-int wd33c93_reset(Scsi_Cmnd *, unsigned int);
 
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN 2

drivers/scsi/aacraid/aachba.c

@@ -175,7 +175,7 @@ MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB) size.
  *
  *	Query config status, and commit the configuration if needed.
  */
-int aac_get_config_status(struct aac_dev *dev)
+int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 {
 	int status = 0;
 	struct fib * fibptr;
@@ -219,7 +219,7 @@ int aac_get_config_status(struct aac_dev *dev)
 	aac_fib_complete(fibptr);
 	/* Send a CT_COMMIT_CONFIG to enable discovery of devices */
 	if (status >= 0) {
-		if (commit == 1) {
+		if ((commit == 1) || commit_flag) {
 			struct aac_commit_config * dinfo;
 			aac_fib_init(fibptr);
 			dinfo = (struct aac_commit_config *) fib_data(fibptr);
@@ -489,6 +489,8 @@ int aac_probe_container(struct aac_dev *dev, int cid)
 	unsigned instance;
 
 	fsa_dev_ptr = dev->fsa_dev;
+	if (!fsa_dev_ptr)
+		return -ENOMEM;
 	instance = dev->scsi_host_ptr->unique_id;
 
 	if (!(fibptr = aac_fib_alloc(dev)))
@@ -782,8 +784,9 @@ int aac_get_adapter_info(struct aac_dev* dev)
 		dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
 	}
 
-	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
+	if (!dev->in_reset) {
-	printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n", 
+		tmp = le32_to_cpu(dev->adapter_info.kernelrev);
+		printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
 			dev->name, 
 			dev->id,
 			tmp>>24,
@@ -792,20 +795,21 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			le32_to_cpu(dev->adapter_info.kernelbuild),
 			(int)sizeof(dev->supplement_adapter_info.BuildDate),
 			dev->supplement_adapter_info.BuildDate);
-	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
+		tmp = le32_to_cpu(dev->adapter_info.monitorrev);
-	printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n", 
+		printk(KERN_INFO "%s%d: monitor %d.%d-%d[%d]\n",
 			dev->name, dev->id,
 			tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 			le32_to_cpu(dev->adapter_info.monitorbuild));
-	tmp = le32_to_cpu(dev->adapter_info.biosrev);
+		tmp = le32_to_cpu(dev->adapter_info.biosrev);
-	printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n", 
+		printk(KERN_INFO "%s%d: bios %d.%d-%d[%d]\n",
 			dev->name, dev->id,
 			tmp>>24,(tmp>>16)&0xff,tmp&0xff,
 			le32_to_cpu(dev->adapter_info.biosbuild));
-	if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
+		if (le32_to_cpu(dev->adapter_info.serial[0]) != 0xBAD0)
-		printk(KERN_INFO "%s%d: serial %x\n",
+			printk(KERN_INFO "%s%d: serial %x\n",
-			dev->name, dev->id,
+				dev->name, dev->id,
-			le32_to_cpu(dev->adapter_info.serial[0]));
+				le32_to_cpu(dev->adapter_info.serial[0]));
+	}
 
 	dev->nondasd_support = 0;
 	dev->raid_scsi_mode = 0;
@@ -1392,6 +1396,7 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
 	struct scsi_cmnd *cmd;
 	struct scsi_device *sdev = scsicmd->device;
 	int active = 0;
+	struct aac_dev *aac;
 	unsigned long flags;
 
 	/*
@@ -1413,11 +1418,14 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
 	if (active)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 
+	aac = (struct aac_dev *)scsicmd->device->host->hostdata;
+	if (aac->in_reset)
+		return SCSI_MLQUEUE_HOST_BUSY;
+
 	/*
 	 *	Allocate and initialize a Fib
 	 */
-	if (!(cmd_fibcontext = 
+	if (!(cmd_fibcontext = aac_fib_alloc(aac)))
-	    aac_fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata)))
 		return SCSI_MLQUEUE_HOST_BUSY;
 
 	aac_fib_init(cmd_fibcontext);
@@ -1470,6 +1478,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
 	struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
 	
+	if (fsa_dev_ptr == NULL)
+		return -1;
 	/*
 	 *	If the bus, id or lun is out of range, return fail
 	 *	Test does not apply to ID 16, the pseudo id for the controller
@@ -1499,6 +1509,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				case INQUIRY:
 				case READ_CAPACITY:
 				case TEST_UNIT_READY:
+					if (dev->in_reset)
+						return -1;
 					spin_unlock_irq(host->host_lock);
 					aac_probe_container(dev, cid);
 					if ((fsa_dev_ptr[cid].valid & 1) == 0)
@@ -1524,6 +1536,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			}
 		} else {  /* check for physical non-dasd devices */
 			if(dev->nondasd_support == 1){
+				if (dev->in_reset)
+					return -1;
 				return aac_send_srb_fib(scsicmd);
 			} else {
 				scsicmd->result = DID_NO_CONNECT << 16;
@@ -1579,6 +1593,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			scsicmd->scsi_done(scsicmd);
 			return 0;
 		}
+		if (dev->in_reset)
+			return -1;
 		setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
 		inq_data.inqd_pdt = INQD_PDT_DA;	/* Direct/random access device */
 		aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
@@ -1734,6 +1750,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		case READ_10:
 		case READ_12:
 		case READ_16:
+			if (dev->in_reset)
+				return -1;
 			/*
 			 *	Hack to keep track of ordinal number of the device that
 			 *	corresponds to a container. Needed to convert
@@ -1752,6 +1770,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		case WRITE_10:
 		case WRITE_12:
 		case WRITE_16:
+			if (dev->in_reset)
+				return -1;
 			return aac_write(scsicmd, cid);
 
 		case SYNCHRONIZE_CACHE:
@@ -1782,6 +1802,8 @@ static int query_disk(struct aac_dev *dev, void __user *arg)
 	struct fsa_dev_info *fsa_dev_ptr;
 
 	fsa_dev_ptr = dev->fsa_dev;
+	if (!fsa_dev_ptr)
+		return -ENODEV;
 	if (copy_from_user(&qd, arg, sizeof (struct aac_query_disk)))
 		return -EFAULT;
 	if (qd.cnum == -1)
@@ -1843,6 +1865,10 @@ static int delete_disk(struct aac_dev *dev, void __user *arg)
 	struct fsa_dev_info *fsa_dev_ptr;
 
 	fsa_dev_ptr = dev->fsa_dev;
+	if (!fsa_dev_ptr)
+		return -ENODEV;
+	if (!fsa_dev_ptr)
+		return -ENODEV;
 
 	if (copy_from_user(&dd, arg, sizeof (struct aac_delete_disk)))
 		return -EFAULT;

drivers/scsi/aacraid/aacraid.h

@@ -1029,6 +1029,7 @@ struct aac_dev
 	  init->InitStructRevision==cpu_to_le32(ADAPTER_INIT_STRUCT_REVISION_4)
 	u8			raw_io_64;
 	u8			printf_enabled;
+	u8			in_reset;
 };
 
 #define aac_adapter_interrupt(dev) \
@@ -1670,6 +1671,7 @@ extern struct aac_common aac_config;
 #define RCV_TEMP_READINGS		0x00000025
 #define GET_COMM_PREFERRED_SETTINGS	0x00000026
 #define IOP_RESET			0x00001000
+#define IOP_RESET_ALWAYS		0x00001001
 #define RE_INIT_ADAPTER			0x000000ee
 
 /*
@@ -1788,7 +1790,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue * q, u32 qnum);
 int aac_fib_complete(struct fib * context);
 #define fib_data(fibctx) ((void *)(fibctx)->hw_fib->data)
 struct aac_dev *aac_init_adapter(struct aac_dev *dev);
-int aac_get_config_status(struct aac_dev *dev);
+int aac_get_config_status(struct aac_dev *dev, int commit_flag);
 int aac_get_containers(struct aac_dev *dev);
 int aac_scsi_cmd(struct scsi_cmnd *cmd);
 int aac_dev_ioctl(struct aac_dev *dev, int cmd, void __user *arg);
@@ -1799,6 +1801,7 @@ int aac_sa_init(struct aac_dev *dev);
 unsigned int aac_response_normal(struct aac_queue * q);
 unsigned int aac_command_normal(struct aac_queue * q);
 unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index);
+int aac_check_health(struct aac_dev * dev);
 int aac_command_thread(void *data);
 int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context *fibctx);
 int aac_fib_adapter_complete(struct fib * fibptr, unsigned short size);

drivers/scsi/aacraid/commctrl.c

@@ -38,7 +38,7 @@
 #include <linux/completion.h>
 #include <linux/dma-mapping.h>
 #include <linux/blkdev.h>
-#include <linux/delay.h>
+#include <linux/delay.h> /* ssleep prototype */
 #include <linux/kthread.h>
 #include <asm/semaphore.h>
 #include <asm/uaccess.h>
@@ -140,7 +140,8 @@ cleanup:
 		fibptr->hw_fib_pa = hw_fib_pa;
 		fibptr->hw_fib = hw_fib;
 	}
-	aac_fib_free(fibptr);
+	if (retval != -EINTR)
+		aac_fib_free(fibptr);
 	return retval;
 }
 
@@ -297,7 +298,7 @@ return_fib:
 		spin_unlock_irqrestore(&dev->fib_lock, flags);
 		/* If someone killed the AIF aacraid thread, restart it */
 		status = !dev->aif_thread;
-		if (status && dev->queues && dev->fsa_dev) {
+		if (status && !dev->in_reset && dev->queues && dev->fsa_dev) {
 			/* Be paranoid, be very paranoid! */
 			kthread_stop(dev->thread);
 			ssleep(1);
@@ -621,7 +622,13 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 
 		actual_fibsize = sizeof (struct aac_srb) + (((user_srbcmd->sg.count & 0xff) - 1) * sizeof (struct sgentry));
 		if(actual_fibsize != fibsize){ // User made a mistake - should not continue
-			dprintk((KERN_DEBUG"aacraid: Bad Size specified in Raw SRB command\n"));
+			dprintk((KERN_DEBUG"aacraid: Bad Size specified in "
+			  "Raw SRB command calculated fibsize=%d "
+			  "user_srbcmd->sg.count=%d aac_srb=%d sgentry=%d "
+			  "issued fibsize=%d\n",
+			  actual_fibsize, user_srbcmd->sg.count,
+			  sizeof(struct aac_srb), sizeof(struct sgentry),
+			  fibsize));
 			rcode = -EINVAL;
 			goto cleanup;
 		}
@@ -663,6 +670,10 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 		psg->count = cpu_to_le32(sg_indx+1);
 		status = aac_fib_send(ScsiPortCommand, srbfib, actual_fibsize, FsaNormal, 1, 1, NULL, NULL);
 	}
+	if (status == -EINTR) {
+		rcode = -EINTR;
+		goto cleanup;
+	}
 
 	if (status != 0){
 		dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n")); 
@@ -696,8 +707,10 @@ cleanup:
 	for(i=0; i <= sg_indx; i++){
 		kfree(sg_list[i]);
 	}
-	aac_fib_complete(srbfib);
+	if (rcode != -EINTR) {
-	aac_fib_free(srbfib);
+		aac_fib_complete(srbfib);
+		aac_fib_free(srbfib);
+	}
 
 	return rcode;
 }

drivers/scsi/aacraid/comminit.c

@@ -180,7 +180,7 @@ int aac_send_shutdown(struct aac_dev * dev)
 			  -2 /* Timeout silently */, 1,
 			  NULL, NULL);
 
-	if (status == 0)
+	if (status >= 0)
 		aac_fib_complete(fibctx);
 	aac_fib_free(fibctx);
 	return status;

drivers/scsi/aacraid/commsup.c

@@ -40,8 +40,10 @@
 #include <linux/blkdev.h>
 #include <linux/delay.h>
 #include <linux/kthread.h>
+#include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
 #include <asm/semaphore.h>
 
 #include "aacraid.h"
@@ -464,6 +466,8 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	dprintk((KERN_DEBUG "  hw_fib pa being sent=%lx\n",(ulong)fibptr->hw_fib_pa));
 	dprintk((KERN_DEBUG "  fib being sent=%p\n",fibptr));
 
+	if (!dev->queues)
+		return -ENODEV;
 	q = &dev->queues->queue[AdapNormCmdQueue];
 
 	if(wait)
@@ -527,8 +531,15 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 				}
 				udelay(5);
 			}
-		} else
+		} else if (down_interruptible(&fibptr->event_wait)) {
-			down(&fibptr->event_wait);
+			spin_lock_irqsave(&fibptr->event_lock, flags);
+			if (fibptr->done == 0) {
+				fibptr->done = 2; /* Tell interrupt we aborted */
+				spin_unlock_irqrestore(&fibptr->event_lock, flags);
+				return -EINTR;
+			}
+			spin_unlock_irqrestore(&fibptr->event_lock, flags);
+		}
 		BUG_ON(fibptr->done == 0);
 			
 		if((fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT)){
@@ -795,7 +806,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 
 	/* Sniff for container changes */
 
-	if (!dev)
+	if (!dev || !dev->fsa_dev)
 		return;
 	container = (u32)-1;
 
@@ -1045,6 +1056,262 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 
 }
 
+static int _aac_reset_adapter(struct aac_dev *aac)
+{
+	int index, quirks;
+	u32 ret;
+	int retval;
+	struct Scsi_Host *host;
+	struct scsi_device *dev;
+	struct scsi_cmnd *command;
+	struct scsi_cmnd *command_list;
+
+	/*
+	 * Assumptions:
+	 *	- host is locked.
+	 *	- in_reset is asserted, so no new i/o is getting to the
+	 *	  card.
+	 *	- The card is dead.
+	 */
+	host = aac->scsi_host_ptr;
+	scsi_block_requests(host);
+	aac_adapter_disable_int(aac);
+	spin_unlock_irq(host->host_lock);
+	kthread_stop(aac->thread);
+
+	/*
+	 *	If a positive health, means in a known DEAD PANIC
+	 * state and the adapter could be reset to `try again'.
+	 */
+	retval = aac_adapter_check_health(aac);
+	if (retval == 0)
+		retval = aac_adapter_sync_cmd(aac, IOP_RESET_ALWAYS,
+		  0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL);
+	if (retval)
+		retval = aac_adapter_sync_cmd(aac, IOP_RESET,
+		  0, 0, 0, 0, 0, 0, &ret, NULL, NULL, NULL, NULL);
+
+	if (retval)
+		goto out;
+	if (ret != 0x00000001) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	index = aac->cardtype;
+
+	/*
+	 * Re-initialize the adapter, first free resources, then carefully
+	 * apply the initialization sequence to come back again. Only risk
+	 * is a change in Firmware dropping cache, it is assumed the caller
+	 * will ensure that i/o is queisced and the card is flushed in that
+	 * case.
+	 */
+	aac_fib_map_free(aac);
+	aac->hw_fib_va = NULL;
+	aac->hw_fib_pa = 0;
+	pci_free_consistent(aac->pdev, aac->comm_size, aac->comm_addr, aac->comm_phys);
+	aac->comm_addr = NULL;
+	aac->comm_phys = 0;
+	kfree(aac->queues);
+	aac->queues = NULL;
+	free_irq(aac->pdev->irq, aac);
+	kfree(aac->fsa_dev);
+	aac->fsa_dev = NULL;
+	if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT) {
+		if (((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK))) ||
+		  ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_32BIT_MASK))))
+			goto out;
+	} else {
+		if (((retval = pci_set_dma_mask(aac->pdev, 0x7FFFFFFFULL))) ||
+		  ((retval = pci_set_consistent_dma_mask(aac->pdev, 0x7FFFFFFFULL))))
+			goto out;
+	}
+	if ((retval = (*(aac_get_driver_ident(index)->init))(aac)))
+		goto out;
+	if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT)
+		if ((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK)))
+			goto out;
+	aac->thread = kthread_run(aac_command_thread, aac, aac->name);
+	if (IS_ERR(aac->thread)) {
+		retval = PTR_ERR(aac->thread);
+		goto out;
+	}
+	(void)aac_get_adapter_info(aac);
+	quirks = aac_get_driver_ident(index)->quirks;
+	if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) {
+ 		host->sg_tablesize = 34;
+ 		host->max_sectors = (host->sg_tablesize * 8) + 112;
+ 	}
+ 	if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) {
+ 		host->sg_tablesize = 17;
+ 		host->max_sectors = (host->sg_tablesize * 8) + 112;
+ 	}
+	aac_get_config_status(aac, 1);
+	aac_get_containers(aac);
+	/*
+	 * This is where the assumption that the Adapter is quiesced
+	 * is important.
+	 */
+	command_list = NULL;
+	__shost_for_each_device(dev, host) {
+		unsigned long flags;
+		spin_lock_irqsave(&dev->list_lock, flags);
+		list_for_each_entry(command, &dev->cmd_list, list)
+			if (command->SCp.phase == AAC_OWNER_FIRMWARE) {
+				command->SCp.buffer = (struct scatterlist *)command_list;
+				command_list = command;
+			}
+		spin_unlock_irqrestore(&dev->list_lock, flags);
+	}
+	while ((command = command_list)) {
+		command_list = (struct scsi_cmnd *)command->SCp.buffer;
+		command->SCp.buffer = NULL;
+		command->result = DID_OK << 16
+		  | COMMAND_COMPLETE << 8
+		  | SAM_STAT_TASK_SET_FULL;
+		command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
+		command->scsi_done(command);
+	}
+	retval = 0;
+
+out:
+	aac->in_reset = 0;
+	scsi_unblock_requests(host);
+	spin_lock_irq(host->host_lock);
+	return retval;
+}
+
+int aac_check_health(struct aac_dev * aac)
+{
+	int BlinkLED;
+	unsigned long time_now, flagv = 0;
+	struct list_head * entry;
+	struct Scsi_Host * host;
+
+	/* Extending the scope of fib_lock slightly to protect aac->in_reset */
+	if (spin_trylock_irqsave(&aac->fib_lock, flagv) == 0)
+		return 0;
+
+	if (aac->in_reset || !(BlinkLED = aac_adapter_check_health(aac))) {
+		spin_unlock_irqrestore(&aac->fib_lock, flagv);
+		return 0; /* OK */
+	}
+
+	aac->in_reset = 1;
+
+	/* Fake up an AIF:
+	 *	aac_aifcmd.command = AifCmdEventNotify = 1
+	 *	aac_aifcmd.seqnum = 0xFFFFFFFF
+	 *	aac_aifcmd.data[0] = AifEnExpEvent = 23
+	 *	aac_aifcmd.data[1] = AifExeFirmwarePanic = 3
+	 *	aac.aifcmd.data[2] = AifHighPriority = 3
+	 *	aac.aifcmd.data[3] = BlinkLED
+	 */
+
+	time_now = jiffies/HZ;
+	entry = aac->fib_list.next;
+
+	/*
+	 * For each Context that is on the
+	 * fibctxList, make a copy of the
+	 * fib, and then set the event to wake up the
+	 * thread that is waiting for it.
+	 */
+	while (entry != &aac->fib_list) {
+		/*
+		 * Extract the fibctx
+		 */
+		struct aac_fib_context *fibctx = list_entry(entry, struct aac_fib_context, next);
+		struct hw_fib * hw_fib;
+		struct fib * fib;
+		/*
+		 * Check if the queue is getting
+		 * backlogged
+		 */
+		if (fibctx->count > 20) {
+			/*
+			 * It's *not* jiffies folks,
+			 * but jiffies / HZ, so do not
+			 * panic ...
+			 */
+			u32 time_last = fibctx->jiffies;
+			/*
+			 * Has it been > 2 minutes
+			 * since the last read off
+			 * the queue?
+			 */
+			if ((time_now - time_last) > aif_timeout) {
+				entry = entry->next;
+				aac_close_fib_context(aac, fibctx);
+				continue;
+			}
+		}
+		/*
+		 * Warning: no sleep allowed while
+		 * holding spinlock
+		 */
+		hw_fib = kmalloc(sizeof(struct hw_fib), GFP_ATOMIC);
+		fib = kmalloc(sizeof(struct fib), GFP_ATOMIC);
+		if (fib && hw_fib) {
+			struct aac_aifcmd * aif;
+
+			memset(hw_fib, 0, sizeof(struct hw_fib));
+			memset(fib, 0, sizeof(struct fib));
+			fib->hw_fib = hw_fib;
+			fib->dev = aac;
+			aac_fib_init(fib);
+			fib->type = FSAFS_NTC_FIB_CONTEXT;
+			fib->size = sizeof (struct fib);
+			fib->data = hw_fib->data;
+			aif = (struct aac_aifcmd *)hw_fib->data;
+			aif->command = cpu_to_le32(AifCmdEventNotify);
+		 	aif->seqnum = cpu_to_le32(0xFFFFFFFF);
+		 	aif->data[0] = cpu_to_le32(AifEnExpEvent);
+			aif->data[1] = cpu_to_le32(AifExeFirmwarePanic);
+		 	aif->data[2] = cpu_to_le32(AifHighPriority);
+			aif->data[3] = cpu_to_le32(BlinkLED);
+
+			/*
+			 * Put the FIB onto the
+			 * fibctx's fibs
+			 */
+			list_add_tail(&fib->fiblink, &fibctx->fib_list);
+			fibctx->count++;
+			/*
+			 * Set the event to wake up the
+			 * thread that will waiting.
+			 */
+			up(&fibctx->wait_sem);
+		} else {
+			printk(KERN_WARNING "aifd: didn't allocate NewFib.\n");
+			kfree(fib);
+			kfree(hw_fib);
+		}
+		entry = entry->next;
+	}
+
+	spin_unlock_irqrestore(&aac->fib_lock, flagv);
+
+	if (BlinkLED < 0) {
+		printk(KERN_ERR "%s: Host adapter dead %d\n", aac->name, BlinkLED);
+		goto out;
+	}
+
+	printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED);
+
+	host = aac->scsi_host_ptr;
+	spin_lock_irqsave(host->host_lock, flagv);
+	BlinkLED = _aac_reset_adapter(aac);
+	spin_unlock_irqrestore(host->host_lock, flagv);
+	return BlinkLED;
+
+out:
+	aac->in_reset = 0;
+	return BlinkLED;
+}
+
+
 /**
  *	aac_command_thread	-	command processing thread
  *	@dev: Adapter to monitor

drivers/scsi/aacraid/dpcsup.c

@@ -124,10 +124,15 @@ unsigned int aac_response_normal(struct aac_queue * q)
 		} else {
 			unsigned long flagv;
 			spin_lock_irqsave(&fib->event_lock, flagv);
-			fib->done = 1;
+			if (!fib->done)
+				fib->done = 1;
 			up(&fib->event_wait);
 			spin_unlock_irqrestore(&fib->event_lock, flagv);
 			FIB_COUNTER_INCREMENT(aac_config.NormalRecved);
+			if (fib->done == 2) {
+				aac_fib_complete(fib);
+				aac_fib_free(fib);
+			}
 		}
 		consumed++;
 		spin_lock_irqsave(q->lock, flags);
@@ -316,7 +321,8 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index)
 			unsigned long flagv;
 	  		dprintk((KERN_INFO "event_wait up\n"));
 			spin_lock_irqsave(&fib->event_lock, flagv);
-			fib->done = 1;
+			if (!fib->done)
+				fib->done = 1;
 			up(&fib->event_wait);
 			spin_unlock_irqrestore(&fib->event_lock, flagv);
 			FIB_COUNTER_INCREMENT(aac_config.NormalRecved);

drivers/scsi/aacraid/linit.c

@@ -454,17 +454,17 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
 	printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n", 
 					AAC_DRIVERNAME);
 	aac = (struct aac_dev *)host->hostdata;
-	if (aac_adapter_check_health(aac)) {
+
-		printk(KERN_ERR "%s: Host adapter appears dead\n", 
+	if ((count = aac_check_health(aac)))
-				AAC_DRIVERNAME);
+		return count;
-		return -ENODEV;
-	}
 	/*
 	 * Wait for all commands to complete to this specific
 	 * target (block maximum 60 seconds).
 	 */
 	for (count = 60; count; --count) {
-		int active = 0;
+		int active = aac->in_reset;
+
+		if (active == 0)
 		__shost_for_each_device(dev, host) {
 			spin_lock_irqsave(&dev->list_lock, flags);
 			list_for_each_entry(command, &dev->cmd_list, list) {
@@ -933,7 +933,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	else
 		shost->max_channel = 0;
 
-	aac_get_config_status(aac);
+	aac_get_config_status(aac, 0);
 	aac_get_containers(aac);
 	list_add(&aac->entry, insert);
 
@@ -1013,6 +1013,10 @@ static void __devexit aac_remove_one(struct pci_dev *pdev)
 	list_del(&aac->entry);
 	scsi_host_put(shost);
 	pci_disable_device(pdev);
+	if (list_empty(&aac_devices)) {
+		unregister_chrdev(aac_cfg_major, "aac");
+		aac_cfg_major = -1;
+	}
 }
 
 static struct pci_driver aac_pci_driver = {

drivers/scsi/aacraid/rkt.c

@@ -395,6 +395,25 @@ static int aac_rkt_send(struct fib * fib)
 	return 0;
 }
 
+static int aac_rkt_restart_adapter(struct aac_dev *dev)
+{
+	u32 var;
+
+	printk(KERN_ERR "%s%d: adapter kernel panic'd.\n",
+			dev->name, dev->id);
+
+	if (aac_rkt_check_health(dev) <= 0)
+		return 1;
+	if (rkt_sync_cmd(dev, IOP_RESET, 0, 0, 0, 0, 0, 0,
+			&var, NULL, NULL, NULL, NULL))
+		return 1;
+	if (var != 0x00000001)
+		 return 1;
+	if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+		return 1;
+	return 0;
+}
+
 /**
  *	aac_rkt_init	-	initialize an i960 based AAC card
  *	@dev: device to configure
@@ -417,6 +436,9 @@ int aac_rkt_init(struct aac_dev *dev)
 	/*
 	 *	Check to see if the board panic'd while booting.
 	 */
+	if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+		if (aac_rkt_restart_adapter(dev))
+			goto error_iounmap;
 	/*
 	 *	Check to see if the board failed any self tests.
 	 */
@@ -431,13 +453,6 @@ int aac_rkt_init(struct aac_dev *dev)
 		printk(KERN_ERR "%s%d: adapter monitor panic.\n", dev->name, instance);
 		goto error_iounmap;
 	}
-	/*
-	 *	Check to see if the board panic'd while booting.
-	 */
-	if (rkt_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) {
-		printk(KERN_ERR "%s%d: adapter kernel panic'd.\n", dev->name, instance);
-		goto error_iounmap;
-	}
 	start = jiffies;
 	/*
 	 *	Wait for the adapter to be up and running. Wait up to 3 minutes

drivers/scsi/aacraid/rx.c

@@ -394,6 +394,25 @@ static int aac_rx_send(struct fib * fib)
 	return 0;
 }
 
+static int aac_rx_restart_adapter(struct aac_dev *dev)
+{
+	u32 var;
+
+	printk(KERN_ERR "%s%d: adapter kernel panic'd.\n",
+			dev->name, dev->id);
+
+	if (aac_rx_check_health(dev) <= 0)
+		return 1;
+	if (rx_sync_cmd(dev, IOP_RESET, 0, 0, 0, 0, 0, 0,
+			&var, NULL, NULL, NULL, NULL))
+		return 1;
+	if (var != 0x00000001)
+		 return 1;
+	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+		return 1;
+	return 0;
+}
+
 /**
  *	aac_rx_init	-	initialize an i960 based AAC card
  *	@dev: device to configure
@@ -416,6 +435,9 @@ int aac_rx_init(struct aac_dev *dev)
 	/*
 	 *	Check to see if the board panic'd while booting.
 	 */
+	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC)
+		if (aac_rx_restart_adapter(dev))
+			goto error_iounmap;
 	/*
 	 *	Check to see if the board failed any self tests.
 	 */
@@ -423,13 +445,6 @@ int aac_rx_init(struct aac_dev *dev)
 		printk(KERN_ERR "%s%d: adapter self-test failed.\n", dev->name, instance);
 		goto error_iounmap;
 	}
-	/*
-	 *	Check to see if the board panic'd while booting.
-	 */
-	if (rx_readl(dev, MUnit.OMRx[0]) & KERNEL_PANIC) {
-		printk(KERN_ERR "%s%d: adapter kernel panic.\n", dev->name, instance);
-		goto error_iounmap;
-	}
 	/*
 	 *	Check to see if the monitor panic'd while booting.
 	 */

drivers/scsi/advansys.c

@@ -888,10 +888,6 @@ typedef unsigned char uchar;
 #define ASC_PCI_ID2DEV(id)    (((id) >> 11) & 0x1F)
 #define ASC_PCI_ID2FUNC(id)   (((id) >> 8) & 0x7)
 #define ASC_PCI_MKID(bus, dev, func) ((((dev) & 0x1F) << 11) | (((func) & 0x7) << 8) | ((bus) & 0xFF))
-#define ASC_PCI_VENDORID                  0x10CD
-#define ASC_PCI_DEVICEID_1200A            0x1100
-#define ASC_PCI_DEVICEID_1200B            0x1200
-#define ASC_PCI_DEVICEID_ULTRA            0x1300
 #define ASC_PCI_REVISION_3150             0x02
 #define ASC_PCI_REVISION_3050             0x03
 
@@ -899,6 +895,14 @@ typedef unsigned char uchar;
 #define  ASC_DVCLIB_CALL_FAILED   (0)
 #define  ASC_DVCLIB_CALL_ERROR    (-1)
 
+#define PCI_VENDOR_ID_ASP		0x10cd
+#define PCI_DEVICE_ID_ASP_1200A		0x1100
+#define PCI_DEVICE_ID_ASP_ABP940	0x1200
+#define PCI_DEVICE_ID_ASP_ABP940U	0x1300
+#define PCI_DEVICE_ID_ASP_ABP940UW	0x2300
+#define PCI_DEVICE_ID_38C0800_REV1	0x2500
+#define PCI_DEVICE_ID_38C1600_REV1	0x2700
+
 /*
  * Enable CC_VERY_LONG_SG_LIST to support up to 64K element SG lists.
  * The SRB structure will have to be changed and the ASC_SRB2SCSIQ()
@@ -1492,8 +1496,6 @@ typedef struct asc_dvc_cfg {
 #define ASC_INIT_STATE_END_INQUIRY   0x0080
 #define ASC_INIT_RESET_SCSI_DONE     0x0100
 #define ASC_INIT_STATE_WITHOUT_EEP   0x8000
-#define ASC_PCI_DEVICE_ID_REV_A      0x1100
-#define ASC_PCI_DEVICE_ID_REV_B      0x1200
 #define ASC_BUG_FIX_IF_NOT_DWB       0x0001
 #define ASC_BUG_FIX_ASYN_USE_SYN     0x0002
 #define ASYN_SDTR_DATA_FIX_PCI_REV_AB 0x41
@@ -2100,12 +2102,6 @@ STATIC ASC_DCNT  AscGetMaxDmaCount(ushort);
 #define ADV_NUM_PAGE_CROSSING \
     ((ADV_SG_TOTAL_MEM_SIZE + (ADV_PAGE_SIZE - 1))/ADV_PAGE_SIZE)
 
-/* a_condor.h */
-#define ADV_PCI_VENDOR_ID               0x10CD
-#define ADV_PCI_DEVICE_ID_REV_A         0x2300
-#define ADV_PCI_DEVID_38C0800_REV1      0x2500
-#define ADV_PCI_DEVID_38C1600_REV1      0x2700
-
 #define ADV_EEP_DVC_CFG_BEGIN           (0x00)
 #define ADV_EEP_DVC_CFG_END             (0x15)
 #define ADV_EEP_DVC_CTL_BEGIN           (0x16)  /* location of OEM name */
@@ -3569,14 +3565,7 @@ typedef struct scsi_cmnd     REQ, *REQP;
 #define PCI_MAX_SLOT            0x1F
 #define PCI_MAX_BUS             0xFF
 #define PCI_IOADDRESS_MASK      0xFFFE
-#define ASC_PCI_VENDORID        0x10CD
 #define ASC_PCI_DEVICE_ID_CNT   6       /* PCI Device ID count. */
-#define ASC_PCI_DEVICE_ID_1100  0x1100
-#define ASC_PCI_DEVICE_ID_1200  0x1200
-#define ASC_PCI_DEVICE_ID_1300  0x1300
-#define ASC_PCI_DEVICE_ID_2300  0x2300  /* ASC-3550 */
-#define ASC_PCI_DEVICE_ID_2500  0x2500  /* ASC-38C0800 */
-#define ASC_PCI_DEVICE_ID_2700  0x2700  /* ASC-38C1600 */
 
 #ifndef ADVANSYS_STATS
 #define ASC_STATS(shp, counter)
@@ -4330,12 +4319,12 @@ advansys_detect(struct scsi_host_template *tpnt)
     struct pci_dev      *pci_devp = NULL;
     int                 pci_device_id_cnt = 0;
     unsigned int        pci_device_id[ASC_PCI_DEVICE_ID_CNT] = {
-                                    ASC_PCI_DEVICE_ID_1100,
+                                    PCI_DEVICE_ID_ASP_1200A,
-                                    ASC_PCI_DEVICE_ID_1200,
+                                    PCI_DEVICE_ID_ASP_ABP940,
-                                    ASC_PCI_DEVICE_ID_1300,
+                                    PCI_DEVICE_ID_ASP_ABP940U,
-                                    ASC_PCI_DEVICE_ID_2300,
+                                    PCI_DEVICE_ID_ASP_ABP940UW,
-                                    ASC_PCI_DEVICE_ID_2500,
+                                    PCI_DEVICE_ID_38C0800_REV1,
-                                    ASC_PCI_DEVICE_ID_2700
+                                    PCI_DEVICE_ID_38C1600_REV1
                         };
     ADV_PADDR           pci_memory_address;
 #endif /* CONFIG_PCI */
@@ -4471,7 +4460,7 @@ advansys_detect(struct scsi_host_template *tpnt)
 
                     /* Find all PCI cards. */
                     while (pci_device_id_cnt < ASC_PCI_DEVICE_ID_CNT) {
-                        if ((pci_devp = pci_find_device(ASC_PCI_VENDORID,
+                        if ((pci_devp = pci_find_device(PCI_VENDOR_ID_ASP,
                             pci_device_id[pci_device_id_cnt], pci_devp)) ==
                             NULL) {
                             pci_device_id_cnt++;
@@ -4575,9 +4564,9 @@ advansys_detect(struct scsi_host_template *tpnt)
              */
 #ifdef CONFIG_PCI
             if (asc_bus[bus] == ASC_IS_PCI &&
-                (pci_devp->device == ASC_PCI_DEVICE_ID_2300 ||
+                (pci_devp->device == PCI_DEVICE_ID_ASP_ABP940UW ||
-                 pci_devp->device == ASC_PCI_DEVICE_ID_2500 ||
+                 pci_devp->device == PCI_DEVICE_ID_38C0800_REV1 ||
-                 pci_devp->device == ASC_PCI_DEVICE_ID_2700))
+                 pci_devp->device == PCI_DEVICE_ID_38C1600_REV1))
             {
                 boardp->flags |= ASC_IS_WIDE_BOARD;
             }
@@ -4600,11 +4589,11 @@ advansys_detect(struct scsi_host_template *tpnt)
                 adv_dvc_varp->isr_callback = adv_isr_callback;
                 adv_dvc_varp->async_callback = adv_async_callback;
 #ifdef CONFIG_PCI
-                if (pci_devp->device == ASC_PCI_DEVICE_ID_2300)
+                if (pci_devp->device == PCI_DEVICE_ID_ASP_ABP940UW)
                 {
                     ASC_DBG(1, "advansys_detect: ASC-3550\n");
                     adv_dvc_varp->chip_type = ADV_CHIP_ASC3550;
-                } else if (pci_devp->device == ASC_PCI_DEVICE_ID_2500)
+                } else if (pci_devp->device == PCI_DEVICE_ID_38C0800_REV1)
                 {
                     ASC_DBG(1, "advansys_detect: ASC-38C0800\n");
                     adv_dvc_varp->chip_type = ADV_CHIP_ASC38C0800;
@@ -11922,7 +11911,7 @@ AscInitGetConfig(
         PCIRevisionID = DvcReadPCIConfigByte(asc_dvc,
                                     AscPCIConfigRevisionIDRegister);
 
-        if (PCIVendorID != ASC_PCI_VENDORID) {
+        if (PCIVendorID != PCI_VENDOR_ID_ASP) {
             warn_code |= ASC_WARN_SET_PCI_CONFIG_SPACE;
         }
         prevCmdRegBits = DvcReadPCIConfigByte(asc_dvc,
@@ -11942,15 +11931,15 @@ AscInitGetConfig(
                 warn_code |= ASC_WARN_SET_PCI_CONFIG_SPACE;
             }
         }
-        if ((PCIDeviceID == ASC_PCI_DEVICEID_1200A) ||
+        if ((PCIDeviceID == PCI_DEVICE_ID_ASP_1200A) ||
-            (PCIDeviceID == ASC_PCI_DEVICEID_1200B)) {
+            (PCIDeviceID == PCI_DEVICE_ID_ASP_ABP940)) {
             DvcWritePCIConfigByte(asc_dvc,
                             AscPCIConfigLatencyTimer, 0x00);
             if (DvcReadPCIConfigByte(asc_dvc, AscPCIConfigLatencyTimer)
                 != 0x00) {
                 warn_code |= ASC_WARN_SET_PCI_CONFIG_SPACE;
             }
-        } else if (PCIDeviceID == ASC_PCI_DEVICEID_ULTRA) {
+        } else if (PCIDeviceID == PCI_DEVICE_ID_ASP_ABP940U) {
             if (DvcReadPCIConfigByte(asc_dvc,
                                 AscPCIConfigLatencyTimer) < 0x20) {
                 DvcWritePCIConfigByte(asc_dvc,
@@ -12037,8 +12026,8 @@ AscInitFromAscDvcVar(
         AscSetChipCfgMsw(iop_base, cfg_msw);
         if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) {
         } else {
-            if ((pci_device_id == ASC_PCI_DEVICE_ID_REV_A) ||
+            if ((pci_device_id == PCI_DEVICE_ID_ASP_1200A) ||
-                (pci_device_id == ASC_PCI_DEVICE_ID_REV_B)) {
+                (pci_device_id == PCI_DEVICE_ID_ASP_ABP940)) {
                 asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB;
                 asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ASYN_USE_SYN;
             }
@@ -14275,8 +14264,8 @@ Default_38C0800_EEPROM_Config __initdata = {
     0,                          /* 55 reserved */
     0,                          /* 56 cisptr_lsw */
     0,                          /* 57 cisprt_msw */
-    ADV_PCI_VENDOR_ID,          /* 58 subsysvid */
+    PCI_VENDOR_ID_ASP,          /* 58 subsysvid */
-    ADV_PCI_DEVID_38C0800_REV1, /* 59 subsysid */
+    PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */
     0,                          /* 60 reserved */
     0,                          /* 61 reserved */
     0,                          /* 62 reserved */
@@ -14405,8 +14394,8 @@ Default_38C1600_EEPROM_Config __initdata = {
     0,                          /* 55 reserved */
     0,                          /* 56 cisptr_lsw */
     0,                          /* 57 cisprt_msw */
-    ADV_PCI_VENDOR_ID,          /* 58 subsysvid */
+    PCI_VENDOR_ID_ASP,          /* 58 subsysvid */
-    ADV_PCI_DEVID_38C1600_REV1, /* 59 subsysid */
+    PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */
     0,                          /* 60 reserved */
     0,                          /* 61 reserved */
     0,                          /* 62 reserved */
@@ -18225,3 +18214,22 @@ AdvInquiryHandling(
     }
 }
 MODULE_LICENSE("Dual BSD/GPL");
+
+/* PCI Devices supported by this driver */
+static struct pci_device_id advansys_pci_tbl[] __devinitdata = {
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_1200A,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940U,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940UW,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C0800_REV1,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C1600_REV1,
+	PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, advansys_pci_tbl);
+

drivers/scsi/aha152x.c

@@ -253,6 +253,7 @@
 #include <linux/isapnp.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
+#include <linux/list.h>
 #include <asm/semaphore.h>
 #include <scsi/scsicam.h>
 
@@ -262,6 +263,8 @@
 #include <scsi/scsi_transport_spi.h>
 #include "aha152x.h"
 
+static LIST_HEAD(aha152x_host_list);
+
 
 /* DEFINES */
 
@@ -423,8 +426,6 @@ MODULE_DEVICE_TABLE(isapnp, id_table);
 
 #endif /* !PCMCIA */
 
-static int registered_count=0;
-static struct Scsi_Host *aha152x_host[2];
 static struct scsi_host_template aha152x_driver_template;
 
 /*
@@ -541,6 +542,7 @@ struct aha152x_hostdata {
 #ifdef __ISAPNP__
 	struct pnp_dev *pnpdev;
 #endif
+	struct list_head host_list;
 };
 
 
@@ -755,20 +757,9 @@ static inline Scsi_Cmnd *remove_SC(Scsi_Cmnd **SC, Scsi_Cmnd *SCp)
 	return ptr;
 }
 
-static inline struct Scsi_Host *lookup_irq(int irqno)
-{
-	int i;
-
-	for(i=0; i<ARRAY_SIZE(aha152x_host); i++)
-		if(aha152x_host[i] && aha152x_host[i]->irq==irqno)
-			return aha152x_host[i];
-
-	return NULL;
-}
-
 static irqreturn_t swintr(int irqno, void *dev_id, struct pt_regs *regs)
 {
-	struct Scsi_Host *shpnt = lookup_irq(irqno);
+	struct Scsi_Host *shpnt = (struct Scsi_Host *)dev_id;
 
 	if (!shpnt) {
         	printk(KERN_ERR "aha152x: catched software interrupt %d for unknown controller.\n", irqno);
@@ -791,10 +782,11 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
 		return NULL;
 	}
 
-	/* need to have host registered before triggering any interrupt */
-	aha152x_host[registered_count] = shpnt;
-
 	memset(HOSTDATA(shpnt), 0, sizeof *HOSTDATA(shpnt));
+	INIT_LIST_HEAD(&HOSTDATA(shpnt)->host_list);
+
+	/* need to have host registered before triggering any interrupt */
+	list_add_tail(&HOSTDATA(shpnt)->host_list, &aha152x_host_list);
 
 	shpnt->io_port   = setup->io_port;
 	shpnt->n_io_port = IO_RANGE;
@@ -907,12 +899,10 @@ struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *setup)
 
 	scsi_scan_host(shpnt);
 
-	registered_count++;
-
 	return shpnt;
 
 out_host_put:
-	aha152x_host[registered_count]=NULL;
+	list_del(&HOSTDATA(shpnt)->host_list);
 	scsi_host_put(shpnt);
 
 	return NULL;
@@ -937,6 +927,7 @@ void aha152x_release(struct Scsi_Host *shpnt)
 #endif
 
 	scsi_remove_host(shpnt);
+	list_del(&HOSTDATA(shpnt)->host_list);
 	scsi_host_put(shpnt);
 }
 
@@ -1459,9 +1450,12 @@ static struct work_struct aha152x_tq;
  */
 static void run(void)
 {
-	int i;
+	struct aha152x_hostdata *hd;
-	for (i = 0; i<ARRAY_SIZE(aha152x_host); i++) {
+
-		is_complete(aha152x_host[i]);
+	list_for_each_entry(hd, &aha152x_host_list, host_list) {
+		struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
+
+		is_complete(shost);
 	}
 }
 
@@ -1471,7 +1465,7 @@ static void run(void)
  */
 static irqreturn_t intr(int irqno, void *dev_id, struct pt_regs *regs)
 {
-	struct Scsi_Host *shpnt = lookup_irq(irqno);
+	struct Scsi_Host *shpnt = (struct Scsi_Host *)dev_id;
 	unsigned long flags;
 	unsigned char rev, dmacntrl0;
 
@@ -3953,16 +3947,17 @@ static int __init aha152x_init(void)
 #endif
 	}
 
-	return registered_count>0;
+	return 1;
 }
 
 static void __exit aha152x_exit(void)
 {
-	int i;
+	struct aha152x_hostdata *hd;
 
-	for(i=0; i<ARRAY_SIZE(setup); i++) {
+	list_for_each_entry(hd, &aha152x_host_list, host_list) {
-		aha152x_release(aha152x_host[i]);
+		struct Scsi_Host *shost = container_of((void *)hd, struct Scsi_Host, hostdata);
-		aha152x_host[i]=NULL;
+
+		aha152x_release(shost);
 	}
 }
 

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -321,7 +321,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(AIC79XX_DRIVER_VERSION);
 module_param(aic79xx, charp, 0444);
 MODULE_PARM_DESC(aic79xx,
-"period delimited, options string.\n"
+"period-delimited options string:\n"
 "	verbose			Enable verbose/diagnostic logging\n"
 "	allow_memio		Allow device registers to be memory mapped\n"
 "	debug			Bitmask of debug values to enable\n"
@@ -346,7 +346,7 @@ MODULE_PARM_DESC(aic79xx,
 "		Shorten the selection timeout to 128ms\n"
 "\n"
 "	options aic79xx 'aic79xx=verbose.tag_info:{{}.{}.{..10}}.seltime:1'\n"
-"\n");
+);
 
 static void ahd_linux_handle_scsi_status(struct ahd_softc *,
 					 struct scsi_device *,

drivers/scsi/aic7xxx/aic7xxx_osm.c

@@ -341,7 +341,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 MODULE_VERSION(AIC7XXX_DRIVER_VERSION);
 module_param(aic7xxx, charp, 0444);
 MODULE_PARM_DESC(aic7xxx,
-"period delimited, options string.\n"
+"period-delimited options string:\n"
 "	verbose			Enable verbose/diagnostic logging\n"
 "	allow_memio		Allow device registers to be memory mapped\n"
 "	debug			Bitmask of debug values to enable\n"

drivers/scsi/aic7xxx_old.c

@@ -249,8 +249,6 @@
 #include <linux/stat.h>
 #include <linux/slab.h>        /* for kmalloc() */
 
-#include <linux/config.h>        /* for CONFIG_PCI */
-
 #define AIC7XXX_C_VERSION  "5.2.6"
 
 #define ALL_TARGETS -1

drivers/scsi/aic94xx/Kconfig

@@ -0,0 +1,41 @@
+#
+# Kernel configuration file for aic94xx SAS/SATA driver.
+#
+# Copyright (c) 2005 Adaptec, Inc.  All rights reserved.
+# Copyright (c) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+#
+# This file is licensed under GPLv2.
+#
+# This file is part of the aic94xx driver.
+#
+# The aic94xx driver is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 of the
+# License.
+#
+# The aic94xx driver is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with Aic94xx Driver; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+#
+
+config SCSI_AIC94XX
+	tristate "Adaptec AIC94xx SAS/SATA support"
+	depends on PCI
+	select SCSI_SAS_LIBSAS
+	help
+		This driver supports Adaptec's SAS/SATA 3Gb/s 64 bit PCI-X
+		AIC94xx chip based host adapters.
+
+config AIC94XX_DEBUG
+	bool "Compile in debug mode"
+	default y
+	depends on SCSI_AIC94XX
+	help
+		Compiles the aic94xx driver in debug mode.  In debug mode,
+		the driver prints some messages to the console.

drivers/scsi/aic94xx/Makefile

@@ -0,0 +1,39 @@
+#
+# Makefile for Adaptec aic94xx SAS/SATA driver.
+#
+# Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+# Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+#
+# This file is licensed under GPLv2.
+#
+# This file is part of the the aic94xx driver.
+#
+# The aic94xx driver is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 of the
+# License.
+#
+# The aic94xx driver is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with the aic94xx driver; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+ifeq ($(CONFIG_AIC94XX_DEBUG),y)
+	EXTRA_CFLAGS += -DASD_DEBUG -DASD_ENTER_EXIT
+endif
+
+obj-$(CONFIG_SCSI_AIC94XX) += aic94xx.o
+aic94xx-y += aic94xx_init.o \
+	     aic94xx_hwi.o  \
+	     aic94xx_reg.o  \
+	     aic94xx_sds.o  \
+	     aic94xx_seq.o  \
+	     aic94xx_dump.o \
+	     aic94xx_scb.o  \
+	     aic94xx_dev.o  \
+	     aic94xx_tmf.o  \
+	     aic94xx_task.o

drivers/scsi/aic94xx/aic94xx.h

@@ -0,0 +1,114 @@
+/*
+ * Aic94xx SAS/SATA driver header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * $Id: //depot/aic94xx/aic94xx.h#31 $
+ */
+
+#ifndef _AIC94XX_H_
+#define _AIC94XX_H_
+
+#include <linux/slab.h>
+#include <linux/ctype.h>
+#include <scsi/libsas.h>
+
+#define ASD_DRIVER_NAME		"aic94xx"
+#define ASD_DRIVER_DESCRIPTION	"Adaptec aic94xx SAS/SATA driver"
+
+#define asd_printk(fmt, ...)	printk(KERN_NOTICE ASD_DRIVER_NAME ": " fmt, ## __VA_ARGS__)
+
+#ifdef ASD_ENTER_EXIT
+#define ENTER  printk(KERN_NOTICE "%s: ENTER %s\n", ASD_DRIVER_NAME, \
+		__FUNCTION__)
+#define EXIT   printk(KERN_NOTICE "%s: --EXIT %s\n", ASD_DRIVER_NAME, \
+		__FUNCTION__)
+#else
+#define ENTER
+#define EXIT
+#endif
+
+#ifdef ASD_DEBUG
+#define ASD_DPRINTK asd_printk
+#else
+#define ASD_DPRINTK(fmt, ...)
+#endif
+
+/* 2*ITNL timeout + 1 second */
+#define AIC94XX_SCB_TIMEOUT  (5*HZ)
+
+extern kmem_cache_t *asd_dma_token_cache;
+extern kmem_cache_t *asd_ascb_cache;
+extern char sas_addr_str[2*SAS_ADDR_SIZE + 1];
+
+static inline void asd_stringify_sas_addr(char *p, const u8 *sas_addr)
+{
+	int i;
+	for (i = 0; i < SAS_ADDR_SIZE; i++, p += 2)
+		snprintf(p, 3, "%02X", sas_addr[i]);
+	*p = '\0';
+}
+
+static inline void asd_destringify_sas_addr(u8 *sas_addr, const char *p)
+{
+	int i;
+	for (i = 0; i < SAS_ADDR_SIZE; i++) {
+		u8 h, l;
+		if (!*p)
+			break;
+		h = isdigit(*p) ? *p-'0' : *p-'A'+10;
+		p++;
+		l = isdigit(*p) ? *p-'0' : *p-'A'+10;
+		p++;
+		sas_addr[i] = (h<<4) | l;
+	}
+}
+
+struct asd_ha_struct;
+struct asd_ascb;
+
+int  asd_read_ocm(struct asd_ha_struct *asd_ha);
+int  asd_read_flash(struct asd_ha_struct *asd_ha);
+
+int  asd_dev_found(struct domain_device *dev);
+void asd_dev_gone(struct domain_device *dev);
+
+void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id);
+
+int  asd_execute_task(struct sas_task *, int num, unsigned long gfp_flags);
+
+/* ---------- TMFs ---------- */
+int  asd_abort_task(struct sas_task *);
+int  asd_abort_task_set(struct domain_device *, u8 *lun);
+int  asd_clear_aca(struct domain_device *, u8 *lun);
+int  asd_clear_task_set(struct domain_device *, u8 *lun);
+int  asd_lu_reset(struct domain_device *, u8 *lun);
+int  asd_query_task(struct sas_task *);
+
+/* ---------- Adapter and Port management ---------- */
+int  asd_clear_nexus_port(struct asd_sas_port *port);
+int  asd_clear_nexus_ha(struct sas_ha_struct *sas_ha);
+
+/* ---------- Phy Management ---------- */
+int  asd_control_phy(struct asd_sas_phy *phy, enum phy_func func, void *arg);
+
+#endif

drivers/scsi/aic94xx/aic94xx_dev.c

@@ -0,0 +1,353 @@
+/*
+ * Aic94xx SAS/SATA DDB management
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * $Id: //depot/aic94xx/aic94xx_dev.c#21 $
+ */
+
+#include "aic94xx.h"
+#include "aic94xx_hwi.h"
+#include "aic94xx_reg.h"
+#include "aic94xx_sas.h"
+
+#define FIND_FREE_DDB(_ha) find_first_zero_bit((_ha)->hw_prof.ddb_bitmap, \
+					       (_ha)->hw_prof.max_ddbs)
+#define SET_DDB(_ddb, _ha) set_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
+#define CLEAR_DDB(_ddb, _ha) clear_bit(_ddb, (_ha)->hw_prof.ddb_bitmap)
+
+static inline int asd_get_ddb(struct asd_ha_struct *asd_ha)
+{
+	unsigned long flags;
+	int ddb, i;
+
+	spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
+	ddb = FIND_FREE_DDB(asd_ha);
+	if (ddb >= asd_ha->hw_prof.max_ddbs) {
+		ddb = -ENOMEM;
+		spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
+		goto out;
+	}
+	SET_DDB(ddb, asd_ha);
+	spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
+
+	for (i = 0; i < sizeof(struct asd_ddb_ssp_smp_target_port); i+= 4)
+		asd_ddbsite_write_dword(asd_ha, ddb, i, 0);
+out:
+	return ddb;
+}
+
+#define INIT_CONN_TAG   offsetof(struct asd_ddb_ssp_smp_target_port, init_conn_tag)
+#define DEST_SAS_ADDR   offsetof(struct asd_ddb_ssp_smp_target_port, dest_sas_addr)
+#define SEND_QUEUE_HEAD offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_head)
+#define DDB_TYPE        offsetof(struct asd_ddb_ssp_smp_target_port, ddb_type)
+#define CONN_MASK       offsetof(struct asd_ddb_ssp_smp_target_port, conn_mask)
+#define DDB_TARG_FLAGS  offsetof(struct asd_ddb_ssp_smp_target_port, flags)
+#define DDB_TARG_FLAGS2 offsetof(struct asd_ddb_stp_sata_target_port, flags2)
+#define EXEC_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, exec_queue_tail)
+#define SEND_QUEUE_TAIL offsetof(struct asd_ddb_ssp_smp_target_port, send_queue_tail)
+#define SISTER_DDB      offsetof(struct asd_ddb_ssp_smp_target_port, sister_ddb)
+#define MAX_CCONN       offsetof(struct asd_ddb_ssp_smp_target_port, max_concurrent_conn)
+#define NUM_CTX         offsetof(struct asd_ddb_ssp_smp_target_port, num_contexts)
+#define ATA_CMD_SCBPTR  offsetof(struct asd_ddb_stp_sata_target_port, ata_cmd_scbptr)
+#define SATA_TAG_ALLOC_MASK offsetof(struct asd_ddb_stp_sata_target_port, sata_tag_alloc_mask)
+#define NUM_SATA_TAGS   offsetof(struct asd_ddb_stp_sata_target_port, num_sata_tags)
+#define SATA_STATUS     offsetof(struct asd_ddb_stp_sata_target_port, sata_status)
+#define NCQ_DATA_SCB_PTR offsetof(struct asd_ddb_stp_sata_target_port, ncq_data_scb_ptr)
+#define ITNL_TIMEOUT    offsetof(struct asd_ddb_ssp_smp_target_port, itnl_timeout)
+
+static inline void asd_free_ddb(struct asd_ha_struct *asd_ha, int ddb)
+{
+	unsigned long flags;
+
+	if (!ddb || ddb >= 0xFFFF)
+		return;
+	asd_ddbsite_write_byte(asd_ha, ddb, DDB_TYPE, DDB_TYPE_UNUSED);
+	spin_lock_irqsave(&asd_ha->hw_prof.ddb_lock, flags);
+	CLEAR_DDB(ddb, asd_ha);
+	spin_unlock_irqrestore(&asd_ha->hw_prof.ddb_lock, flags);
+}
+
+static inline void asd_set_ddb_type(struct domain_device *dev)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	int ddb = (int) (unsigned long) dev->lldd_dev;
+
+	if (dev->dev_type == SATA_PM_PORT)
+		asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_PM_PORT);
+	else if (dev->tproto)
+		asd_ddbsite_write_byte(asd_ha,ddb, DDB_TYPE, DDB_TYPE_TARGET);
+	else
+		asd_ddbsite_write_byte(asd_ha,ddb,DDB_TYPE,DDB_TYPE_INITIATOR);
+}
+
+static int asd_init_sata_tag_ddb(struct domain_device *dev)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	int ddb, i;
+
+	ddb = asd_get_ddb(asd_ha);
+	if (ddb < 0)
+		return ddb;
+
+	for (i = 0; i < sizeof(struct asd_ddb_sata_tag); i += 2)
+		asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
+
+	asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
+			       SISTER_DDB, ddb);
+	return 0;
+}
+
+static inline int asd_init_sata(struct domain_device *dev)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	int ddb = (int) (unsigned long) dev->lldd_dev;
+	u32 qdepth = 0;
+	int res = 0;
+
+	asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
+	if ((dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM_PORT) &&
+	    dev->sata_dev.identify_device &&
+	    dev->sata_dev.identify_device[10] != 0) {
+		u16 w75 = le16_to_cpu(dev->sata_dev.identify_device[75]);
+		u16 w76 = le16_to_cpu(dev->sata_dev.identify_device[76]);
+
+		if (w76 & 0x100) /* NCQ? */
+			qdepth = (w75 & 0x1F) + 1;
+		asd_ddbsite_write_dword(asd_ha, ddb, SATA_TAG_ALLOC_MASK,
+					(1<<qdepth)-1);
+		asd_ddbsite_write_byte(asd_ha, ddb, NUM_SATA_TAGS, qdepth);
+	}
+	if (dev->dev_type == SATA_DEV || dev->dev_type == SATA_PM ||
+	    dev->dev_type == SATA_PM_PORT) {
+		struct dev_to_host_fis *fis = (struct dev_to_host_fis *)
+			dev->frame_rcvd;
+		asd_ddbsite_write_byte(asd_ha, ddb, SATA_STATUS, fis->status);
+	}
+	asd_ddbsite_write_word(asd_ha, ddb, NCQ_DATA_SCB_PTR, 0xFFFF);
+	if (qdepth > 0)
+		res = asd_init_sata_tag_ddb(dev);
+	return res;
+}
+
+static int asd_init_target_ddb(struct domain_device *dev)
+{
+	int ddb, i;
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	u8 flags = 0;
+
+	ddb = asd_get_ddb(asd_ha);
+	if (ddb < 0)
+		return ddb;
+
+	dev->lldd_dev = (void *) (unsigned long) ddb;
+
+	asd_ddbsite_write_byte(asd_ha, ddb, 0, DDB_TP_CONN_TYPE);
+	asd_ddbsite_write_byte(asd_ha, ddb, 1, 0);
+	asd_ddbsite_write_word(asd_ha, ddb, INIT_CONN_TAG, 0xFFFF);
+	for (i = 0; i < SAS_ADDR_SIZE; i++)
+		asd_ddbsite_write_byte(asd_ha, ddb, DEST_SAS_ADDR+i,
+				       dev->sas_addr[i]);
+	asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_HEAD, 0xFFFF);
+	asd_set_ddb_type(dev);
+	asd_ddbsite_write_byte(asd_ha, ddb, CONN_MASK, dev->port->phy_mask);
+	if (dev->port->oob_mode != SATA_OOB_MODE) {
+		flags |= OPEN_REQUIRED;
+		if ((dev->dev_type == SATA_DEV) ||
+		    (dev->tproto & SAS_PROTO_STP)) {
+			struct smp_resp *rps_resp = &dev->sata_dev.rps_resp;
+			if (rps_resp->frame_type == SMP_RESPONSE &&
+			    rps_resp->function == SMP_REPORT_PHY_SATA &&
+			    rps_resp->result == SMP_RESP_FUNC_ACC) {
+				if (rps_resp->rps.affil_valid)
+					flags |= STP_AFFIL_POL;
+				if (rps_resp->rps.affil_supp)
+					flags |= SUPPORTS_AFFIL;
+			}
+		} else {
+			flags |= CONCURRENT_CONN_SUPP;
+			if (!dev->parent &&
+			    (dev->dev_type == EDGE_DEV ||
+			     dev->dev_type == FANOUT_DEV))
+				asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
+						       4);
+			else
+				asd_ddbsite_write_byte(asd_ha, ddb, MAX_CCONN,
+						       dev->pathways);
+			asd_ddbsite_write_byte(asd_ha, ddb, NUM_CTX, 1);
+		}
+	}
+	if (dev->dev_type == SATA_PM)
+		flags |= SATA_MULTIPORT;
+	asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS, flags);
+
+	flags = 0;
+	if (dev->tproto & SAS_PROTO_STP)
+		flags |= STP_CL_POL_NO_TX;
+	asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS2, flags);
+
+	asd_ddbsite_write_word(asd_ha, ddb, EXEC_QUEUE_TAIL, 0xFFFF);
+	asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_TAIL, 0xFFFF);
+	asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
+
+	if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTO_STP)) {
+		i = asd_init_sata(dev);
+		if (i < 0) {
+			asd_free_ddb(asd_ha, ddb);
+			return i;
+		}
+	}
+
+	if (dev->dev_type == SAS_END_DEV) {
+		struct sas_end_device *rdev = rphy_to_end_device(dev->rphy);
+		if (rdev->I_T_nexus_loss_timeout > 0)
+			asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
+					       min(rdev->I_T_nexus_loss_timeout,
+						   (u16)ITNL_TIMEOUT_CONST));
+		else
+			asd_ddbsite_write_word(asd_ha, ddb, ITNL_TIMEOUT,
+					       (u16)ITNL_TIMEOUT_CONST);
+	}
+	return 0;
+}
+
+static int asd_init_sata_pm_table_ddb(struct domain_device *dev)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	int ddb, i;
+
+	ddb = asd_get_ddb(asd_ha);
+	if (ddb < 0)
+		return ddb;
+
+	for (i = 0; i < 32; i += 2)
+		asd_ddbsite_write_word(asd_ha, ddb, i, 0xFFFF);
+
+	asd_ddbsite_write_word(asd_ha, (int) (unsigned long) dev->lldd_dev,
+			       SISTER_DDB, ddb);
+
+	return 0;
+}
+
+#define PM_PORT_FLAGS offsetof(struct asd_ddb_sata_pm_port, pm_port_flags)
+#define PARENT_DDB    offsetof(struct asd_ddb_sata_pm_port, parent_ddb)
+
+/**
+ * asd_init_sata_pm_port_ddb -- SATA Port Multiplier Port
+ * dev: pointer to domain device
+ *
+ * For SATA Port Multiplier Ports we need to allocate one SATA Port
+ * Multiplier Port DDB and depending on whether the target on it
+ * supports SATA II NCQ, one SATA Tag DDB.
+ */
+static int asd_init_sata_pm_port_ddb(struct domain_device *dev)
+{
+	int ddb, i, parent_ddb, pmtable_ddb;
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	u8  flags;
+
+	ddb = asd_get_ddb(asd_ha);
+	if (ddb < 0)
+		return ddb;
+
+	asd_set_ddb_type(dev);
+	flags = (dev->sata_dev.port_no << 4) | PM_PORT_SET;
+	asd_ddbsite_write_byte(asd_ha, ddb, PM_PORT_FLAGS, flags);
+	asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
+	asd_ddbsite_write_word(asd_ha, ddb, ATA_CMD_SCBPTR, 0xFFFF);
+	asd_init_sata(dev);
+
+	parent_ddb = (int) (unsigned long) dev->parent->lldd_dev;
+	asd_ddbsite_write_word(asd_ha, ddb, PARENT_DDB, parent_ddb);
+	pmtable_ddb = asd_ddbsite_read_word(asd_ha, parent_ddb, SISTER_DDB);
+	asd_ddbsite_write_word(asd_ha, pmtable_ddb, dev->sata_dev.port_no,ddb);
+
+	if (asd_ddbsite_read_byte(asd_ha, ddb, NUM_SATA_TAGS) > 0) {
+		i = asd_init_sata_tag_ddb(dev);
+		if (i < 0) {
+			asd_free_ddb(asd_ha, ddb);
+			return i;
+		}
+	}
+	return 0;
+}
+
+static int asd_init_initiator_ddb(struct domain_device *dev)
+{
+	return -ENODEV;
+}
+
+/**
+ * asd_init_sata_pm_ddb -- SATA Port Multiplier
+ * dev: pointer to domain device
+ *
+ * For STP and direct-attached SATA Port Multipliers we need
+ * one target port DDB entry and one SATA PM table DDB entry.
+ */
+static int asd_init_sata_pm_ddb(struct domain_device *dev)
+{
+	int res = 0;
+
+	res = asd_init_target_ddb(dev);
+	if (res)
+		goto out;
+	res = asd_init_sata_pm_table_ddb(dev);
+	if (res)
+		asd_free_ddb(dev->port->ha->lldd_ha,
+			     (int) (unsigned long) dev->lldd_dev);
+out:
+	return res;
+}
+
+int asd_dev_found(struct domain_device *dev)
+{
+	int res = 0;
+
+	switch (dev->dev_type) {
+	case SATA_PM:
+		res = asd_init_sata_pm_ddb(dev);
+		break;
+	case SATA_PM_PORT:
+		res = asd_init_sata_pm_port_ddb(dev);
+		break;
+	default:
+		if (dev->tproto)
+			res = asd_init_target_ddb(dev);
+		else
+			res = asd_init_initiator_ddb(dev);
+	}
+	return res;
+}
+
+void asd_dev_gone(struct domain_device *dev)
+{
+	int ddb, sister_ddb;
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+
+	ddb = (int) (unsigned long) dev->lldd_dev;
+	sister_ddb = asd_ddbsite_read_word(asd_ha, ddb, SISTER_DDB);
+
+	if (sister_ddb != 0xFFFF)
+		asd_free_ddb(asd_ha, sister_ddb);
+	asd_free_ddb(asd_ha, ddb);
+	dev->lldd_dev = NULL;
+}

drivers/scsi/aic94xx/aic94xx_dump.c

@@ -0,0 +1,959 @@
+/*
+ * Aic94xx SAS/SATA driver dump interface.
+ *
+ * Copyright (C) 2004 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2004 David Chaw <david_chaw@adaptec.com>
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * 2005/07/14/LT  Complete overhaul of this file.  Update pages, register
+ * locations, names, etc.  Make use of macros.  Print more information.
+ * Print all cseq and lseq mip and mdp.
+ *
+ */
+
+#include "linux/pci.h"
+#include "aic94xx.h"
+#include "aic94xx_reg.h"
+#include "aic94xx_reg_def.h"
+#include "aic94xx_sas.h"
+
+#include "aic94xx_dump.h"
+
+#ifdef ASD_DEBUG
+
+#define MD(x)	    (1 << (x))
+#define MODE_COMMON (1 << 31)
+#define MODE_0_7    (0xFF)
+
+static const struct lseq_cio_regs {
+	char	*name;
+	u32	offs;
+	u8	width;
+	u32	mode;
+} LSEQmCIOREGS[] = {
+	{"LmMnSCBPTR",    0x20, 16, MD(0)|MD(1)|MD(2)|MD(3)|MD(4) },
+	{"LmMnDDBPTR",    0x22, 16, MD(0)|MD(1)|MD(2)|MD(3)|MD(4) },
+	{"LmREQMBX",      0x30, 32, MODE_COMMON },
+	{"LmRSPMBX",      0x34, 32, MODE_COMMON },
+	{"LmMnINT",       0x38, 32, MODE_0_7 },
+	{"LmMnINTEN",     0x3C, 32, MODE_0_7 },
+	{"LmXMTPRIMD",    0x40, 32, MODE_COMMON },
+	{"LmXMTPRIMCS",   0x44,  8, MODE_COMMON },
+	{"LmCONSTAT",     0x45,  8, MODE_COMMON },
+	{"LmMnDMAERRS",   0x46,  8, MD(0)|MD(1) },
+	{"LmMnSGDMAERRS", 0x47,  8, MD(0)|MD(1) },
+	{"LmMnEXPHDRP",   0x48,  8, MD(0) },
+	{"LmMnSASAALIGN", 0x48,  8, MD(1) },
+	{"LmMnMSKHDRP",   0x49,  8, MD(0) },
+	{"LmMnSTPALIGN",  0x49,  8, MD(1) },
+	{"LmMnRCVHDRP",   0x4A,  8, MD(0) },
+	{"LmMnXMTHDRP",   0x4A,  8, MD(1) },
+	{"LmALIGNMODE",   0x4B,  8, MD(1) },
+	{"LmMnEXPRCVCNT", 0x4C, 32, MD(0) },
+	{"LmMnXMTCNT",    0x4C, 32, MD(1) },
+	{"LmMnCURRTAG",   0x54, 16, MD(0) },
+	{"LmMnPREVTAG",   0x56, 16, MD(0) },
+	{"LmMnACKOFS",    0x58,  8, MD(1) },
+	{"LmMnXFRLVL",    0x59,  8, MD(0)|MD(1) },
+	{"LmMnSGDMACTL",  0x5A,  8, MD(0)|MD(1) },
+	{"LmMnSGDMASTAT", 0x5B,  8, MD(0)|MD(1) },
+	{"LmMnDDMACTL",   0x5C,  8, MD(0)|MD(1) },
+	{"LmMnDDMASTAT",  0x5D,  8, MD(0)|MD(1) },
+	{"LmMnDDMAMODE",  0x5E, 16, MD(0)|MD(1) },
+	{"LmMnPIPECTL",   0x61,  8, MD(0)|MD(1) },
+	{"LmMnACTSCB",    0x62, 16, MD(0)|MD(1) },
+	{"LmMnSGBHADR",   0x64,  8, MD(0)|MD(1) },
+	{"LmMnSGBADR",    0x65,  8, MD(0)|MD(1) },
+	{"LmMnSGDCNT",    0x66,  8, MD(0)|MD(1) },
+	{"LmMnSGDMADR",   0x68, 32, MD(0)|MD(1) },
+	{"LmMnSGDMADR",   0x6C, 32, MD(0)|MD(1) },
+	{"LmMnXFRCNT",    0x70, 32, MD(0)|MD(1) },
+	{"LmMnXMTCRC",    0x74, 32, MD(1) },
+	{"LmCURRTAG",     0x74, 16, MD(0) },
+	{"LmPREVTAG",     0x76, 16, MD(0) },
+	{"LmMnDPSEL",     0x7B,  8, MD(0)|MD(1) },
+	{"LmDPTHSTAT",    0x7C,  8, MODE_COMMON },
+	{"LmMnHOLDLVL",   0x7D,  8, MD(0) },
+	{"LmMnSATAFS",    0x7E,  8, MD(1) },
+	{"LmMnCMPLTSTAT", 0x7F,  8, MD(0)|MD(1) },
+	{"LmPRMSTAT0",    0x80, 32, MODE_COMMON },
+	{"LmPRMSTAT1",    0x84, 32, MODE_COMMON },
+	{"LmGPRMINT",     0x88,  8, MODE_COMMON },
+        {"LmMnCURRSCB",   0x8A, 16, MD(0) },
+	{"LmPRMICODE",    0x8C, 32, MODE_COMMON },
+	{"LmMnRCVCNT",    0x90, 16, MD(0) },
+	{"LmMnBUFSTAT",   0x92, 16, MD(0) },
+	{"LmMnXMTHDRSIZE",0x92,  8, MD(1) },
+	{"LmMnXMTSIZE",   0x93,  8, MD(1) },
+	{"LmMnTGTXFRCNT", 0x94, 32, MD(0) },
+	{"LmMnEXPROFS",   0x98, 32, MD(0) },
+	{"LmMnXMTROFS",   0x98, 32, MD(1) },
+	{"LmMnRCVROFS",   0x9C, 32, MD(0) },
+	{"LmCONCTL",      0xA0, 16, MODE_COMMON },
+	{"LmBITLTIMER",   0xA2, 16, MODE_COMMON },
+	{"LmWWNLOW",      0xA8, 32, MODE_COMMON },
+	{"LmWWNHIGH",     0xAC, 32, MODE_COMMON },
+	{"LmMnFRMERR",    0xB0, 32, MD(0) },
+	{"LmMnFRMERREN",  0xB4, 32, MD(0) },
+	{"LmAWTIMER",     0xB8, 16, MODE_COMMON },
+	{"LmAWTCTL",      0xBA,  8, MODE_COMMON },
+	{"LmMnHDRCMPS",   0xC0, 32, MD(0) },
+	{"LmMnXMTSTAT",   0xC4,  8, MD(1) },
+	{"LmHWTSTATEN",   0xC5,  8, MODE_COMMON },
+	{"LmMnRRDYRC",    0xC6,  8, MD(0) },
+        {"LmMnRRDYTC",    0xC6,  8, MD(1) },
+	{"LmHWTSTAT",     0xC7,  8, MODE_COMMON },
+	{"LmMnDATABUFADR",0xC8, 16, MD(0)|MD(1) },
+	{"LmDWSSTATUS",   0xCB,  8, MODE_COMMON },
+	{"LmMnACTSTAT",   0xCE, 16, MD(0)|MD(1) },
+	{"LmMnREQSCB",    0xD2, 16, MD(0)|MD(1) },
+	{"LmXXXPRIM",     0xD4, 32, MODE_COMMON },
+	{"LmRCVASTAT",    0xD9,  8, MODE_COMMON },
+	{"LmINTDIS1",     0xDA,  8, MODE_COMMON },
+	{"LmPSTORESEL",   0xDB,  8, MODE_COMMON },
+	{"LmPSTORE",      0xDC, 32, MODE_COMMON },
+	{"LmPRIMSTAT0EN", 0xE0, 32, MODE_COMMON },
+	{"LmPRIMSTAT1EN", 0xE4, 32, MODE_COMMON },
+	{"LmDONETCTL",    0xF2, 16, MODE_COMMON },
+	{NULL, 0, 0, 0 }
+};
+/*
+static struct lseq_cio_regs LSEQmOOBREGS[] = {
+   {"OOB_BFLTR"        ,0x100, 8, MD(5)},
+   {"OOB_INIT_MIN"     ,0x102,16, MD(5)},
+   {"OOB_INIT_MAX"     ,0x104,16, MD(5)},
+   {"OOB_INIT_NEG"     ,0x106,16, MD(5)},
+   {"OOB_SAS_MIN"      ,0x108,16, MD(5)},
+   {"OOB_SAS_MAX"      ,0x10A,16, MD(5)},
+   {"OOB_SAS_NEG"      ,0x10C,16, MD(5)},
+   {"OOB_WAKE_MIN"     ,0x10E,16, MD(5)},
+   {"OOB_WAKE_MAX"     ,0x110,16, MD(5)},
+   {"OOB_WAKE_NEG"     ,0x112,16, MD(5)},
+   {"OOB_IDLE_MAX"     ,0x114,16, MD(5)},
+   {"OOB_BURST_MAX"    ,0x116,16, MD(5)},
+   {"OOB_XMIT_BURST"   ,0x118, 8, MD(5)},
+   {"OOB_SEND_PAIRS"   ,0x119, 8, MD(5)},
+   {"OOB_INIT_IDLE"    ,0x11A, 8, MD(5)},
+   {"OOB_INIT_NEGO"    ,0x11C, 8, MD(5)},
+   {"OOB_SAS_IDLE"     ,0x11E, 8, MD(5)},
+   {"OOB_SAS_NEGO"     ,0x120, 8, MD(5)},
+   {"OOB_WAKE_IDLE"    ,0x122, 8, MD(5)},
+   {"OOB_WAKE_NEGO"    ,0x124, 8, MD(5)},
+   {"OOB_DATA_KBITS"   ,0x126, 8, MD(5)},
+   {"OOB_BURST_DATA"   ,0x128,32, MD(5)},
+   {"OOB_ALIGN_0_DATA" ,0x12C,32, MD(5)},
+   {"OOB_ALIGN_1_DATA" ,0x130,32, MD(5)},
+   {"OOB_SYNC_DATA"    ,0x134,32, MD(5)},
+   {"OOB_D10_2_DATA"   ,0x138,32, MD(5)},
+   {"OOB_PHY_RST_CNT"  ,0x13C,32, MD(5)},
+   {"OOB_SIG_GEN"      ,0x140, 8, MD(5)},
+   {"OOB_XMIT"         ,0x141, 8, MD(5)},
+   {"FUNCTION_MAKS"    ,0x142, 8, MD(5)},
+   {"OOB_MODE"         ,0x143, 8, MD(5)},
+   {"CURRENT_STATUS"   ,0x144, 8, MD(5)},
+   {"SPEED_MASK"       ,0x145, 8, MD(5)},
+   {"PRIM_COUNT"       ,0x146, 8, MD(5)},
+   {"OOB_SIGNALS"      ,0x148, 8, MD(5)},
+   {"OOB_DATA_DET"     ,0x149, 8, MD(5)},
+   {"OOB_TIME_OUT"     ,0x14C, 8, MD(5)},
+   {"OOB_TIMER_ENABLE" ,0x14D, 8, MD(5)},
+   {"OOB_STATUS"       ,0x14E, 8, MD(5)},
+   {"HOT_PLUG_DELAY"   ,0x150, 8, MD(5)},
+   {"RCD_DELAY"        ,0x151, 8, MD(5)},
+   {"COMSAS_TIMER"     ,0x152, 8, MD(5)},
+   {"SNTT_DELAY"       ,0x153, 8, MD(5)},
+   {"SPD_CHNG_DELAY"   ,0x154, 8, MD(5)},
+   {"SNLT_DELAY"       ,0x155, 8, MD(5)},
+   {"SNWT_DELAY"       ,0x156, 8, MD(5)},
+   {"ALIGN_DELAY"      ,0x157, 8, MD(5)},
+   {"INT_ENABLE_0"     ,0x158, 8, MD(5)},
+   {"INT_ENABLE_1"     ,0x159, 8, MD(5)},
+   {"INT_ENABLE_2"     ,0x15A, 8, MD(5)},
+   {"INT_ENABLE_3"     ,0x15B, 8, MD(5)},
+   {"OOB_TEST_REG"     ,0x15C, 8, MD(5)},
+   {"PHY_CONTROL_0"    ,0x160, 8, MD(5)},
+   {"PHY_CONTROL_1"    ,0x161, 8, MD(5)},
+   {"PHY_CONTROL_2"    ,0x162, 8, MD(5)},
+   {"PHY_CONTROL_3"    ,0x163, 8, MD(5)},
+   {"PHY_OOB_CAL_TX"   ,0x164, 8, MD(5)},
+   {"PHY_OOB_CAL_RX"   ,0x165, 8, MD(5)},
+   {"OOB_PHY_CAL_TX"   ,0x166, 8, MD(5)},
+   {"OOB_PHY_CAL_RX"   ,0x167, 8, MD(5)},
+   {"PHY_CONTROL_4"    ,0x168, 8, MD(5)},
+   {"PHY_TEST"         ,0x169, 8, MD(5)},
+   {"PHY_PWR_CTL"      ,0x16A, 8, MD(5)},
+   {"PHY_PWR_DELAY"    ,0x16B, 8, MD(5)},
+   {"OOB_SM_CON"       ,0x16C, 8, MD(5)},
+   {"ADDR_TRAP_1"      ,0x16D, 8, MD(5)},
+   {"ADDR_NEXT_1"      ,0x16E, 8, MD(5)},
+   {"NEXT_ST_1"        ,0x16F, 8, MD(5)},
+   {"OOB_SM_STATE"     ,0x170, 8, MD(5)},
+   {"ADDR_TRAP_2"      ,0x171, 8, MD(5)},
+   {"ADDR_NEXT_2"      ,0x172, 8, MD(5)},
+   {"NEXT_ST_2"        ,0x173, 8, MD(5)},
+   {NULL, 0, 0, 0 }
+};
+*/
+#define STR_8BIT   "   %30s[0x%04x]:0x%02x\n"
+#define STR_16BIT  "   %30s[0x%04x]:0x%04x\n"
+#define STR_32BIT  "   %30s[0x%04x]:0x%08x\n"
+#define STR_64BIT  "   %30s[0x%04x]:0x%llx\n"
+
+#define PRINT_REG_8bit(_ha, _n, _r) asd_printk(STR_8BIT, #_n, _n,      \
+					     asd_read_reg_byte(_ha, _r))
+#define PRINT_REG_16bit(_ha, _n, _r) asd_printk(STR_16BIT, #_n, _n,     \
+					      asd_read_reg_word(_ha, _r))
+#define PRINT_REG_32bit(_ha, _n, _r) asd_printk(STR_32BIT, #_n, _n,      \
+					      asd_read_reg_dword(_ha, _r))
+
+#define PRINT_CREG_8bit(_ha, _n) asd_printk(STR_8BIT, #_n, _n,      \
+					     asd_read_reg_byte(_ha, C##_n))
+#define PRINT_CREG_16bit(_ha, _n) asd_printk(STR_16BIT, #_n, _n,     \
+					      asd_read_reg_word(_ha, C##_n))
+#define PRINT_CREG_32bit(_ha, _n) asd_printk(STR_32BIT, #_n, _n,      \
+					      asd_read_reg_dword(_ha, C##_n))
+
+#define MSTR_8BIT   "   Mode:%02d %30s[0x%04x]:0x%02x\n"
+#define MSTR_16BIT  "   Mode:%02d %30s[0x%04x]:0x%04x\n"
+#define MSTR_32BIT  "   Mode:%02d %30s[0x%04x]:0x%08x\n"
+
+#define PRINT_MREG_8bit(_ha, _m, _n, _r) asd_printk(MSTR_8BIT, _m, #_n, _n,   \
+					     asd_read_reg_byte(_ha, _r))
+#define PRINT_MREG_16bit(_ha, _m, _n, _r) asd_printk(MSTR_16BIT, _m, #_n, _n, \
+					      asd_read_reg_word(_ha, _r))
+#define PRINT_MREG_32bit(_ha, _m, _n, _r) asd_printk(MSTR_32BIT, _m, #_n, _n, \
+					      asd_read_reg_dword(_ha, _r))
+
+/* can also be used for MD when the register is mode aware already */
+#define PRINT_MIS_byte(_ha, _n) asd_printk(STR_8BIT, #_n,CSEQ_##_n-CMAPPEDSCR,\
+                                           asd_read_reg_byte(_ha, CSEQ_##_n))
+#define PRINT_MIS_word(_ha, _n) asd_printk(STR_16BIT,#_n,CSEQ_##_n-CMAPPEDSCR,\
+                                           asd_read_reg_word(_ha, CSEQ_##_n))
+#define PRINT_MIS_dword(_ha, _n)                      \
+        asd_printk(STR_32BIT,#_n,CSEQ_##_n-CMAPPEDSCR,\
+                   asd_read_reg_dword(_ha, CSEQ_##_n))
+#define PRINT_MIS_qword(_ha, _n)                                       \
+        asd_printk(STR_64BIT, #_n,CSEQ_##_n-CMAPPEDSCR,                \
+                   (unsigned long long)(((u64)asd_read_reg_dword(_ha, CSEQ_##_n))     \
+                 | (((u64)asd_read_reg_dword(_ha, (CSEQ_##_n)+4))<<32)))
+
+#define CMDP_REG(_n, _m) (_m*(CSEQ_PAGE_SIZE*2)+CSEQ_##_n)
+#define PRINT_CMDP_word(_ha, _n) \
+asd_printk("%20s 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", \
+	#_n, \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 0)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 1)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 2)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 3)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 4)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 5)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 6)), \
+	asd_read_reg_word(_ha, CMDP_REG(_n, 7)))
+
+#define PRINT_CMDP_byte(_ha, _n) \
+asd_printk("%20s 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x 0x%04x\n", \
+	#_n, \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 0)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 1)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 2)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 3)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 4)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 5)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 6)), \
+	asd_read_reg_byte(_ha, CMDP_REG(_n, 7)))
+
+static void asd_dump_cseq_state(struct asd_ha_struct *asd_ha)
+{
+	int mode;
+
+	asd_printk("CSEQ STATE\n");
+
+	asd_printk("ARP2 REGISTERS\n");
+
+	PRINT_CREG_32bit(asd_ha, ARP2CTL);
+	PRINT_CREG_32bit(asd_ha, ARP2INT);
+	PRINT_CREG_32bit(asd_ha, ARP2INTEN);
+	PRINT_CREG_8bit(asd_ha, MODEPTR);
+	PRINT_CREG_8bit(asd_ha, ALTMODE);
+	PRINT_CREG_8bit(asd_ha, FLAG);
+	PRINT_CREG_8bit(asd_ha, ARP2INTCTL);
+	PRINT_CREG_16bit(asd_ha, STACK);
+	PRINT_CREG_16bit(asd_ha, PRGMCNT);
+	PRINT_CREG_16bit(asd_ha, ACCUM);
+	PRINT_CREG_16bit(asd_ha, SINDEX);
+	PRINT_CREG_16bit(asd_ha, DINDEX);
+	PRINT_CREG_8bit(asd_ha, SINDIR);
+	PRINT_CREG_8bit(asd_ha, DINDIR);
+	PRINT_CREG_8bit(asd_ha, JUMLDIR);
+	PRINT_CREG_8bit(asd_ha, ARP2HALTCODE);
+	PRINT_CREG_16bit(asd_ha, CURRADDR);
+	PRINT_CREG_16bit(asd_ha, LASTADDR);
+	PRINT_CREG_16bit(asd_ha, NXTLADDR);
+
+	asd_printk("IOP REGISTERS\n");
+
+	PRINT_REG_32bit(asd_ha, BISTCTL1, CBISTCTL);
+	PRINT_CREG_32bit(asd_ha, MAPPEDSCR);
+
+	asd_printk("CIO REGISTERS\n");
+
+	for (mode = 0; mode < 9; mode++)
+		PRINT_MREG_16bit(asd_ha, mode, MnSCBPTR, CMnSCBPTR(mode));
+	PRINT_MREG_16bit(asd_ha, 15, MnSCBPTR, CMnSCBPTR(15));
+
+	for (mode = 0; mode < 9; mode++)
+		PRINT_MREG_16bit(asd_ha, mode, MnDDBPTR, CMnDDBPTR(mode));
+	PRINT_MREG_16bit(asd_ha, 15, MnDDBPTR, CMnDDBPTR(15));
+
+	for (mode = 0; mode < 8; mode++)
+		PRINT_MREG_32bit(asd_ha, mode, MnREQMBX, CMnREQMBX(mode));
+	for (mode = 0; mode < 8; mode++)
+		PRINT_MREG_32bit(asd_ha, mode, MnRSPMBX, CMnRSPMBX(mode));
+	for (mode = 0; mode < 8; mode++)
+		PRINT_MREG_32bit(asd_ha, mode, MnINT, CMnINT(mode));
+	for (mode = 0; mode < 8; mode++)
+		PRINT_MREG_32bit(asd_ha, mode, MnINTEN, CMnINTEN(mode));
+
+	PRINT_CREG_8bit(asd_ha, SCRATCHPAGE);
+	for (mode = 0; mode < 8; mode++)
+		PRINT_MREG_8bit(asd_ha, mode, MnSCRATCHPAGE,
+				CMnSCRATCHPAGE(mode));
+
+	PRINT_REG_32bit(asd_ha, CLINKCON, CLINKCON);
+	PRINT_REG_8bit(asd_ha, CCONMSK, CCONMSK);
+	PRINT_REG_8bit(asd_ha, CCONEXIST, CCONEXIST);
+	PRINT_REG_16bit(asd_ha, CCONMODE, CCONMODE);
+	PRINT_REG_32bit(asd_ha, CTIMERCALC, CTIMERCALC);
+	PRINT_REG_8bit(asd_ha, CINTDIS, CINTDIS);
+
+	asd_printk("SCRATCH MEMORY\n");
+
+	asd_printk("MIP 4 >>>>>\n");
+	PRINT_MIS_word(asd_ha, Q_EXE_HEAD);
+	PRINT_MIS_word(asd_ha, Q_EXE_TAIL);
+	PRINT_MIS_word(asd_ha, Q_DONE_HEAD);
+	PRINT_MIS_word(asd_ha, Q_DONE_TAIL);
+	PRINT_MIS_word(asd_ha, Q_SEND_HEAD);
+	PRINT_MIS_word(asd_ha, Q_SEND_TAIL);
+	PRINT_MIS_word(asd_ha, Q_DMA2CHIM_HEAD);
+	PRINT_MIS_word(asd_ha, Q_DMA2CHIM_TAIL);
+	PRINT_MIS_word(asd_ha, Q_COPY_HEAD);
+	PRINT_MIS_word(asd_ha, Q_COPY_TAIL);
+	PRINT_MIS_word(asd_ha, REG0);
+	PRINT_MIS_word(asd_ha, REG1);
+	PRINT_MIS_dword(asd_ha, REG2);
+	PRINT_MIS_byte(asd_ha, LINK_CTL_Q_MAP);
+	PRINT_MIS_byte(asd_ha, MAX_CSEQ_MODE);
+	PRINT_MIS_byte(asd_ha, FREE_LIST_HACK_COUNT);
+
+	asd_printk("MIP 5 >>>>\n");
+	PRINT_MIS_qword(asd_ha, EST_NEXUS_REQ_QUEUE);
+	PRINT_MIS_qword(asd_ha, EST_NEXUS_REQ_COUNT);
+	PRINT_MIS_word(asd_ha, Q_EST_NEXUS_HEAD);
+	PRINT_MIS_word(asd_ha, Q_EST_NEXUS_TAIL);
+	PRINT_MIS_word(asd_ha, NEED_EST_NEXUS_SCB);
+	PRINT_MIS_byte(asd_ha, EST_NEXUS_REQ_HEAD);
+	PRINT_MIS_byte(asd_ha, EST_NEXUS_REQ_TAIL);
+	PRINT_MIS_byte(asd_ha, EST_NEXUS_SCB_OFFSET);
+
+	asd_printk("MIP 6 >>>>\n");
+	PRINT_MIS_word(asd_ha, INT_ROUT_RET_ADDR0);
+	PRINT_MIS_word(asd_ha, INT_ROUT_RET_ADDR1);
+	PRINT_MIS_word(asd_ha, INT_ROUT_SCBPTR);
+	PRINT_MIS_byte(asd_ha, INT_ROUT_MODE);
+	PRINT_MIS_byte(asd_ha, ISR_SCRATCH_FLAGS);
+	PRINT_MIS_word(asd_ha, ISR_SAVE_SINDEX);
+	PRINT_MIS_word(asd_ha, ISR_SAVE_DINDEX);
+	PRINT_MIS_word(asd_ha, Q_MONIRTT_HEAD);
+	PRINT_MIS_word(asd_ha, Q_MONIRTT_TAIL);
+	PRINT_MIS_byte(asd_ha, FREE_SCB_MASK);
+	PRINT_MIS_word(asd_ha, BUILTIN_FREE_SCB_HEAD);
+	PRINT_MIS_word(asd_ha, BUILTIN_FREE_SCB_TAIL);
+	PRINT_MIS_word(asd_ha, EXTENDED_FREE_SCB_HEAD);
+	PRINT_MIS_word(asd_ha, EXTENDED_FREE_SCB_TAIL);
+
+	asd_printk("MIP 7 >>>>\n");
+	PRINT_MIS_qword(asd_ha, EMPTY_REQ_QUEUE);
+	PRINT_MIS_qword(asd_ha, EMPTY_REQ_COUNT);
+	PRINT_MIS_word(asd_ha, Q_EMPTY_HEAD);
+	PRINT_MIS_word(asd_ha, Q_EMPTY_TAIL);
+	PRINT_MIS_word(asd_ha, NEED_EMPTY_SCB);
+	PRINT_MIS_byte(asd_ha, EMPTY_REQ_HEAD);
+	PRINT_MIS_byte(asd_ha, EMPTY_REQ_TAIL);
+	PRINT_MIS_byte(asd_ha, EMPTY_SCB_OFFSET);
+	PRINT_MIS_word(asd_ha, PRIMITIVE_DATA);
+	PRINT_MIS_dword(asd_ha, TIMEOUT_CONST);
+
+	asd_printk("MDP 0 >>>>\n");
+	asd_printk("%-20s %6s %6s %6s %6s %6s %6s %6s %6s\n",
+		   "Mode: ", "0", "1", "2", "3", "4", "5", "6", "7");
+	PRINT_CMDP_word(asd_ha, LRM_SAVE_SINDEX);
+	PRINT_CMDP_word(asd_ha, LRM_SAVE_SCBPTR);
+	PRINT_CMDP_word(asd_ha, Q_LINK_HEAD);
+	PRINT_CMDP_word(asd_ha, Q_LINK_TAIL);
+	PRINT_CMDP_byte(asd_ha, LRM_SAVE_SCRPAGE);
+
+	asd_printk("MDP 0 Mode 8 >>>>\n");
+	PRINT_MIS_word(asd_ha, RET_ADDR);
+	PRINT_MIS_word(asd_ha, RET_SCBPTR);
+	PRINT_MIS_word(asd_ha, SAVE_SCBPTR);
+	PRINT_MIS_word(asd_ha, EMPTY_TRANS_CTX);
+	PRINT_MIS_word(asd_ha, RESP_LEN);
+	PRINT_MIS_word(asd_ha, TMF_SCBPTR);
+	PRINT_MIS_word(asd_ha, GLOBAL_PREV_SCB);
+	PRINT_MIS_word(asd_ha, GLOBAL_HEAD);
+	PRINT_MIS_word(asd_ha, CLEAR_LU_HEAD);
+	PRINT_MIS_byte(asd_ha, TMF_OPCODE);
+	PRINT_MIS_byte(asd_ha, SCRATCH_FLAGS);
+	PRINT_MIS_word(asd_ha, HSB_SITE);
+	PRINT_MIS_word(asd_ha, FIRST_INV_SCB_SITE);
+	PRINT_MIS_word(asd_ha, FIRST_INV_DDB_SITE);
+
+	asd_printk("MDP 1 Mode 8 >>>>\n");
+	PRINT_MIS_qword(asd_ha, LUN_TO_CLEAR);
+	PRINT_MIS_qword(asd_ha, LUN_TO_CHECK);
+
+	asd_printk("MDP 2 Mode 8 >>>>\n");
+	PRINT_MIS_qword(asd_ha, HQ_NEW_POINTER);
+	PRINT_MIS_qword(asd_ha, HQ_DONE_BASE);
+	PRINT_MIS_dword(asd_ha, HQ_DONE_POINTER);
+	PRINT_MIS_byte(asd_ha, HQ_DONE_PASS);
+}
+
+#define PRINT_LREG_8bit(_h, _lseq, _n) \
+        asd_printk(STR_8BIT, #_n, _n, asd_read_reg_byte(_h, Lm##_n(_lseq)))
+#define PRINT_LREG_16bit(_h, _lseq, _n) \
+        asd_printk(STR_16BIT, #_n, _n, asd_read_reg_word(_h, Lm##_n(_lseq)))
+#define PRINT_LREG_32bit(_h, _lseq, _n) \
+        asd_printk(STR_32BIT, #_n, _n, asd_read_reg_dword(_h, Lm##_n(_lseq)))
+
+#define PRINT_LMIP_byte(_h, _lseq, _n)                              \
+	asd_printk(STR_8BIT, #_n, LmSEQ_##_n(_lseq)-LmSCRATCH(_lseq), \
+		   asd_read_reg_byte(_h, LmSEQ_##_n(_lseq)))
+#define PRINT_LMIP_word(_h, _lseq, _n)                              \
+	asd_printk(STR_16BIT, #_n, LmSEQ_##_n(_lseq)-LmSCRATCH(_lseq), \
+		   asd_read_reg_word(_h, LmSEQ_##_n(_lseq)))
+#define PRINT_LMIP_dword(_h, _lseq, _n)                             \
+	asd_printk(STR_32BIT, #_n, LmSEQ_##_n(_lseq)-LmSCRATCH(_lseq), \
+		   asd_read_reg_dword(_h, LmSEQ_##_n(_lseq)))
+#define PRINT_LMIP_qword(_h, _lseq, _n)                                \
+	asd_printk(STR_64BIT, #_n, LmSEQ_##_n(_lseq)-LmSCRATCH(_lseq), \
+		 (unsigned long long)(((unsigned long long) \
+		 asd_read_reg_dword(_h, LmSEQ_##_n(_lseq))) \
+	          | (((unsigned long long) \
+		 asd_read_reg_dword(_h, LmSEQ_##_n(_lseq)+4))<<32)))
+
+static void asd_print_lseq_cio_reg(struct asd_ha_struct *asd_ha,
+				   u32 lseq_cio_addr, int i)
+{
+	switch (LSEQmCIOREGS[i].width) {
+	case 8:
+		asd_printk("%20s[0x%x]: 0x%02x\n", LSEQmCIOREGS[i].name,
+			   LSEQmCIOREGS[i].offs,
+			   asd_read_reg_byte(asd_ha, lseq_cio_addr +
+					     LSEQmCIOREGS[i].offs));
+
+		break;
+	case 16:
+		asd_printk("%20s[0x%x]: 0x%04x\n", LSEQmCIOREGS[i].name,
+			   LSEQmCIOREGS[i].offs,
+			   asd_read_reg_word(asd_ha, lseq_cio_addr +
+					     LSEQmCIOREGS[i].offs));
+
+		break;
+	case 32:
+		asd_printk("%20s[0x%x]: 0x%08x\n", LSEQmCIOREGS[i].name,
+			   LSEQmCIOREGS[i].offs,
+			   asd_read_reg_dword(asd_ha, lseq_cio_addr +
+					      LSEQmCIOREGS[i].offs));
+		break;
+	}
+}
+
+static void asd_dump_lseq_state(struct asd_ha_struct *asd_ha, int lseq)
+{
+	u32 moffs;
+	int mode;
+
+	asd_printk("LSEQ %d STATE\n", lseq);
+
+	asd_printk("LSEQ%d: ARP2 REGISTERS\n", lseq);
+	PRINT_LREG_32bit(asd_ha, lseq, ARP2CTL);
+	PRINT_LREG_32bit(asd_ha, lseq, ARP2INT);
+	PRINT_LREG_32bit(asd_ha, lseq, ARP2INTEN);
+	PRINT_LREG_8bit(asd_ha, lseq, MODEPTR);
+	PRINT_LREG_8bit(asd_ha, lseq, ALTMODE);
+	PRINT_LREG_8bit(asd_ha, lseq, FLAG);
+	PRINT_LREG_8bit(asd_ha, lseq, ARP2INTCTL);
+	PRINT_LREG_16bit(asd_ha, lseq, STACK);
+	PRINT_LREG_16bit(asd_ha, lseq, PRGMCNT);
+	PRINT_LREG_16bit(asd_ha, lseq, ACCUM);
+	PRINT_LREG_16bit(asd_ha, lseq, SINDEX);
+	PRINT_LREG_16bit(asd_ha, lseq, DINDEX);
+	PRINT_LREG_8bit(asd_ha, lseq, SINDIR);
+	PRINT_LREG_8bit(asd_ha, lseq, DINDIR);
+	PRINT_LREG_8bit(asd_ha, lseq, JUMLDIR);
+	PRINT_LREG_8bit(asd_ha, lseq, ARP2HALTCODE);
+	PRINT_LREG_16bit(asd_ha, lseq, CURRADDR);
+	PRINT_LREG_16bit(asd_ha, lseq, LASTADDR);
+	PRINT_LREG_16bit(asd_ha, lseq, NXTLADDR);
+
+	asd_printk("LSEQ%d: IOP REGISTERS\n", lseq);
+
+	PRINT_LREG_32bit(asd_ha, lseq, MODECTL);
+	PRINT_LREG_32bit(asd_ha, lseq, DBGMODE);
+	PRINT_LREG_32bit(asd_ha, lseq, CONTROL);
+	PRINT_REG_32bit(asd_ha, BISTCTL0, LmBISTCTL0(lseq));
+	PRINT_REG_32bit(asd_ha, BISTCTL1, LmBISTCTL1(lseq));
+
+	asd_printk("LSEQ%d: CIO REGISTERS\n", lseq);
+	asd_printk("Mode common:\n");
+
+	for (mode = 0; mode < 8; mode++) {
+		u32 lseq_cio_addr = LmSEQ_PHY_BASE(mode, lseq);
+		int i;
+
+		for (i = 0; LSEQmCIOREGS[i].name; i++)
+			if (LSEQmCIOREGS[i].mode == MODE_COMMON)
+				asd_print_lseq_cio_reg(asd_ha,lseq_cio_addr,i);
+	}
+
+	asd_printk("Mode unique:\n");
+	for (mode = 0; mode < 8; mode++) {
+		u32 lseq_cio_addr = LmSEQ_PHY_BASE(mode, lseq);
+		int i;
+
+		asd_printk("Mode %d\n", mode);
+		for  (i = 0; LSEQmCIOREGS[i].name; i++) {
+			if (!(LSEQmCIOREGS[i].mode & (1 << mode)))
+				continue;
+			asd_print_lseq_cio_reg(asd_ha, lseq_cio_addr, i);
+		}
+	}
+
+	asd_printk("SCRATCH MEMORY\n");
+
+	asd_printk("LSEQ%d MIP 0 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, Q_TGTXFR_HEAD);
+	PRINT_LMIP_word(asd_ha, lseq, Q_TGTXFR_TAIL);
+	PRINT_LMIP_byte(asd_ha, lseq, LINK_NUMBER);
+	PRINT_LMIP_byte(asd_ha, lseq, SCRATCH_FLAGS);
+	PRINT_LMIP_qword(asd_ha, lseq, CONNECTION_STATE);
+	PRINT_LMIP_word(asd_ha, lseq, CONCTL);
+	PRINT_LMIP_byte(asd_ha, lseq, CONSTAT);
+	PRINT_LMIP_byte(asd_ha, lseq, CONNECTION_MODES);
+	PRINT_LMIP_word(asd_ha, lseq, REG1_ISR);
+	PRINT_LMIP_word(asd_ha, lseq, REG2_ISR);
+	PRINT_LMIP_word(asd_ha, lseq, REG3_ISR);
+	PRINT_LMIP_qword(asd_ha, lseq,REG0_ISR);
+
+	asd_printk("LSEQ%d MIP 1 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, EST_NEXUS_SCBPTR0);
+	PRINT_LMIP_word(asd_ha, lseq, EST_NEXUS_SCBPTR1);
+	PRINT_LMIP_word(asd_ha, lseq, EST_NEXUS_SCBPTR2);
+	PRINT_LMIP_word(asd_ha, lseq, EST_NEXUS_SCBPTR3);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_OPCODE0);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_OPCODE1);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_OPCODE2);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_OPCODE3);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_HEAD);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_SCB_TAIL);
+	PRINT_LMIP_byte(asd_ha, lseq, EST_NEXUS_BUF_AVAIL);
+	PRINT_LMIP_dword(asd_ha, lseq, TIMEOUT_CONST);
+	PRINT_LMIP_word(asd_ha, lseq, ISR_SAVE_SINDEX);
+	PRINT_LMIP_word(asd_ha, lseq, ISR_SAVE_DINDEX);
+
+	asd_printk("LSEQ%d MIP 2 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, EMPTY_SCB_PTR0);
+	PRINT_LMIP_word(asd_ha, lseq, EMPTY_SCB_PTR1);
+	PRINT_LMIP_word(asd_ha, lseq, EMPTY_SCB_PTR2);
+	PRINT_LMIP_word(asd_ha, lseq, EMPTY_SCB_PTR3);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_OPCD0);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_OPCD1);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_OPCD2);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_OPCD3);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_HEAD);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_SCB_TAIL);
+	PRINT_LMIP_byte(asd_ha, lseq, EMPTY_BUFS_AVAIL);
+
+	asd_printk("LSEQ%d MIP 3 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, DEV_PRES_TMR_TOUT_CONST);
+	PRINT_LMIP_dword(asd_ha, lseq, SATA_INTERLOCK_TIMEOUT);
+	PRINT_LMIP_dword(asd_ha, lseq, SRST_ASSERT_TIMEOUT);
+	PRINT_LMIP_dword(asd_ha, lseq, RCV_FIS_TIMEOUT);
+	PRINT_LMIP_dword(asd_ha, lseq, ONE_MILLISEC_TIMEOUT);
+	PRINT_LMIP_dword(asd_ha, lseq, TEN_MS_COMINIT_TIMEOUT);
+	PRINT_LMIP_dword(asd_ha, lseq, SMP_RCV_TIMEOUT);
+
+	for (mode = 0; mode < 3; mode++) {
+		asd_printk("LSEQ%d MDP 0 MODE %d >>>>\n", lseq, mode);
+		moffs = mode * LSEQ_MODE_SCRATCH_SIZE;
+
+		asd_printk(STR_16BIT, "RET_ADDR", 0,
+			   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR(lseq)
+					     + moffs));
+		asd_printk(STR_16BIT, "REG0_MODE", 2,
+			   asd_read_reg_word(asd_ha, LmSEQ_REG0_MODE(lseq)
+					     + moffs));
+		asd_printk(STR_16BIT, "MODE_FLAGS", 4,
+			   asd_read_reg_word(asd_ha, LmSEQ_MODE_FLAGS(lseq)
+					     + moffs));
+		asd_printk(STR_16BIT, "RET_ADDR2", 0x6,
+			   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR2(lseq)
+					     + moffs));
+		asd_printk(STR_16BIT, "RET_ADDR1", 0x8,
+			   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR1(lseq)
+					     + moffs));
+		asd_printk(STR_8BIT, "OPCODE_TO_CSEQ", 0xB,
+			   asd_read_reg_byte(asd_ha, LmSEQ_OPCODE_TO_CSEQ(lseq)
+					     + moffs));
+		asd_printk(STR_16BIT, "DATA_TO_CSEQ", 0xC,
+			   asd_read_reg_word(asd_ha, LmSEQ_DATA_TO_CSEQ(lseq)
+					     + moffs));
+	}
+
+	asd_printk("LSEQ%d MDP 0 MODE 5 >>>>\n", lseq);
+	moffs = LSEQ_MODE5_PAGE0_OFFSET;
+	asd_printk(STR_16BIT, "RET_ADDR", 0,
+		   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR(lseq) + moffs));
+	asd_printk(STR_16BIT, "REG0_MODE", 2,
+		   asd_read_reg_word(asd_ha, LmSEQ_REG0_MODE(lseq) + moffs));
+	asd_printk(STR_16BIT, "MODE_FLAGS", 4,
+		   asd_read_reg_word(asd_ha, LmSEQ_MODE_FLAGS(lseq) + moffs));
+	asd_printk(STR_16BIT, "RET_ADDR2", 0x6,
+		   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR2(lseq) + moffs));
+	asd_printk(STR_16BIT, "RET_ADDR1", 0x8,
+		   asd_read_reg_word(asd_ha, LmSEQ_RET_ADDR1(lseq) + moffs));
+	asd_printk(STR_8BIT, "OPCODE_TO_CSEQ", 0xB,
+	   asd_read_reg_byte(asd_ha, LmSEQ_OPCODE_TO_CSEQ(lseq) + moffs));
+	asd_printk(STR_16BIT, "DATA_TO_CSEQ", 0xC,
+	   asd_read_reg_word(asd_ha, LmSEQ_DATA_TO_CSEQ(lseq) + moffs));
+
+	asd_printk("LSEQ%d MDP 0 MODE 0 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, FIRST_INV_DDB_SITE);
+	PRINT_LMIP_word(asd_ha, lseq, EMPTY_TRANS_CTX);
+	PRINT_LMIP_word(asd_ha, lseq, RESP_LEN);
+	PRINT_LMIP_word(asd_ha, lseq, FIRST_INV_SCB_SITE);
+	PRINT_LMIP_dword(asd_ha, lseq, INTEN_SAVE);
+	PRINT_LMIP_byte(asd_ha, lseq, LINK_RST_FRM_LEN);
+	PRINT_LMIP_byte(asd_ha, lseq, LINK_RST_PROTOCOL);
+	PRINT_LMIP_byte(asd_ha, lseq, RESP_STATUS);
+	PRINT_LMIP_byte(asd_ha, lseq, LAST_LOADED_SGE);
+	PRINT_LMIP_byte(asd_ha, lseq, SAVE_SCBPTR);
+
+	asd_printk("LSEQ%d MDP 0 MODE 1 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, Q_XMIT_HEAD);
+	PRINT_LMIP_word(asd_ha, lseq, M1_EMPTY_TRANS_CTX);
+	PRINT_LMIP_word(asd_ha, lseq, INI_CONN_TAG);
+	PRINT_LMIP_byte(asd_ha, lseq, FAILED_OPEN_STATUS);
+	PRINT_LMIP_byte(asd_ha, lseq, XMIT_REQUEST_TYPE);
+	PRINT_LMIP_byte(asd_ha, lseq, M1_RESP_STATUS);
+	PRINT_LMIP_byte(asd_ha, lseq, M1_LAST_LOADED_SGE);
+	PRINT_LMIP_word(asd_ha, lseq, M1_SAVE_SCBPTR);
+
+	asd_printk("LSEQ%d MDP 0 MODE 2 >>>>\n", lseq);
+	PRINT_LMIP_word(asd_ha, lseq, PORT_COUNTER);
+	PRINT_LMIP_word(asd_ha, lseq, PM_TABLE_PTR);
+	PRINT_LMIP_word(asd_ha, lseq, SATA_INTERLOCK_TMR_SAVE);
+	PRINT_LMIP_word(asd_ha, lseq, IP_BITL);
+	PRINT_LMIP_word(asd_ha, lseq, COPY_SMP_CONN_TAG);
+	PRINT_LMIP_byte(asd_ha, lseq, P0M2_OFFS1AH);
+
+	asd_printk("LSEQ%d MDP 0 MODE 4/5 >>>>\n", lseq);
+	PRINT_LMIP_byte(asd_ha, lseq, SAVED_OOB_STATUS);
+	PRINT_LMIP_byte(asd_ha, lseq, SAVED_OOB_MODE);
+	PRINT_LMIP_word(asd_ha, lseq, Q_LINK_HEAD);
+	PRINT_LMIP_byte(asd_ha, lseq, LINK_RST_ERR);
+	PRINT_LMIP_byte(asd_ha, lseq, SAVED_OOB_SIGNALS);
+	PRINT_LMIP_byte(asd_ha, lseq, SAS_RESET_MODE);
+	PRINT_LMIP_byte(asd_ha, lseq, LINK_RESET_RETRY_COUNT);
+	PRINT_LMIP_byte(asd_ha, lseq, NUM_LINK_RESET_RETRIES);
+	PRINT_LMIP_word(asd_ha, lseq, OOB_INT_ENABLES);
+	PRINT_LMIP_word(asd_ha, lseq, NOTIFY_TIMER_TIMEOUT);
+	PRINT_LMIP_word(asd_ha, lseq, NOTIFY_TIMER_DOWN_COUNT);
+
+	asd_printk("LSEQ%d MDP 1 MODE 0 >>>>\n", lseq);
+	PRINT_LMIP_qword(asd_ha, lseq, SG_LIST_PTR_ADDR0);
+	PRINT_LMIP_qword(asd_ha, lseq, SG_LIST_PTR_ADDR1);
+
+	asd_printk("LSEQ%d MDP 1 MODE 1 >>>>\n", lseq);
+	PRINT_LMIP_qword(asd_ha, lseq, M1_SG_LIST_PTR_ADDR0);
+	PRINT_LMIP_qword(asd_ha, lseq, M1_SG_LIST_PTR_ADDR1);
+
+	asd_printk("LSEQ%d MDP 1 MODE 2 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, INVALID_DWORD_COUNT);
+	PRINT_LMIP_dword(asd_ha, lseq, DISPARITY_ERROR_COUNT);
+	PRINT_LMIP_dword(asd_ha, lseq, LOSS_OF_SYNC_COUNT);
+
+	asd_printk("LSEQ%d MDP 1 MODE 4/5 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, FRAME_TYPE_MASK);
+	PRINT_LMIP_dword(asd_ha, lseq, HASHED_SRC_ADDR_MASK_PRINT);
+	PRINT_LMIP_byte(asd_ha, lseq, NUM_FILL_BYTES_MASK);
+	PRINT_LMIP_word(asd_ha, lseq, TAG_MASK);
+	PRINT_LMIP_word(asd_ha, lseq, TARGET_PORT_XFER_TAG);
+	PRINT_LMIP_dword(asd_ha, lseq, DATA_OFFSET);
+
+	asd_printk("LSEQ%d MDP 2 MODE 0 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, SMP_RCV_TIMER_TERM_TS);
+	PRINT_LMIP_byte(asd_ha, lseq, DEVICE_BITS);
+	PRINT_LMIP_word(asd_ha, lseq, SDB_DDB);
+	PRINT_LMIP_word(asd_ha, lseq, SDB_NUM_TAGS);
+	PRINT_LMIP_word(asd_ha, lseq, SDB_CURR_TAG);
+
+	asd_printk("LSEQ%d MDP 2 MODE 1 >>>>\n", lseq);
+	PRINT_LMIP_qword(asd_ha, lseq, TX_ID_ADDR_FRAME);
+	PRINT_LMIP_dword(asd_ha, lseq, OPEN_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, SRST_AS_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, LAST_LOADED_SG_EL);
+
+	asd_printk("LSEQ%d MDP 2 MODE 2 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, CLOSE_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, BREAK_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, DWS_RESET_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, SATA_INTERLOCK_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, MCTL_TIMER_TERM_TS);
+
+	asd_printk("LSEQ%d MDP 2 MODE 4/5 >>>>\n", lseq);
+	PRINT_LMIP_dword(asd_ha, lseq, COMINIT_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, RCV_ID_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, RCV_FIS_TIMER_TERM_TS);
+	PRINT_LMIP_dword(asd_ha, lseq, DEV_PRES_TIMER_TERM_TS);
+}
+
+/**
+ * asd_dump_ddb_site -- dump a CSEQ DDB site
+ * @asd_ha: pointer to host adapter structure
+ * @site_no: site number of interest
+ */
+void asd_dump_target_ddb(struct asd_ha_struct *asd_ha, u16 site_no)
+{
+	if (site_no >= asd_ha->hw_prof.max_ddbs)
+		return;
+
+#define DDB_FIELDB(__name)                                        \
+	asd_ddbsite_read_byte(asd_ha, site_no,                    \
+			      offsetof(struct asd_ddb_ssp_smp_target_port, __name))
+#define DDB2_FIELDB(__name)                                       \
+	asd_ddbsite_read_byte(asd_ha, site_no,                    \
+			      offsetof(struct asd_ddb_stp_sata_target_port, __name))
+#define DDB_FIELDW(__name)                                        \
+	asd_ddbsite_read_word(asd_ha, site_no,                    \
+			      offsetof(struct asd_ddb_ssp_smp_target_port, __name))
+
+#define DDB_FIELDD(__name)                                         \
+	asd_ddbsite_read_dword(asd_ha, site_no,                    \
+			       offsetof(struct asd_ddb_ssp_smp_target_port, __name))
+
+	asd_printk("DDB: 0x%02x\n", site_no);
+	asd_printk("conn_type: 0x%02x\n", DDB_FIELDB(conn_type));
+	asd_printk("conn_rate: 0x%02x\n", DDB_FIELDB(conn_rate));
+	asd_printk("init_conn_tag: 0x%04x\n", be16_to_cpu(DDB_FIELDW(init_conn_tag)));
+	asd_printk("send_queue_head: 0x%04x\n", be16_to_cpu(DDB_FIELDW(send_queue_head)));
+	asd_printk("sq_suspended: 0x%02x\n", DDB_FIELDB(sq_suspended));
+	asd_printk("DDB Type: 0x%02x\n", DDB_FIELDB(ddb_type));
+	asd_printk("AWT Default: 0x%04x\n", DDB_FIELDW(awt_def));
+	asd_printk("compat_features: 0x%02x\n", DDB_FIELDB(compat_features));
+	asd_printk("Pathway Blocked Count: 0x%02x\n",
+		   DDB_FIELDB(pathway_blocked_count));
+	asd_printk("arb_wait_time: 0x%04x\n", DDB_FIELDW(arb_wait_time));
+	asd_printk("more_compat_features: 0x%08x\n",
+		   DDB_FIELDD(more_compat_features));
+	asd_printk("Conn Mask: 0x%02x\n", DDB_FIELDB(conn_mask));
+	asd_printk("flags: 0x%02x\n", DDB_FIELDB(flags));
+	asd_printk("flags2: 0x%02x\n", DDB2_FIELDB(flags2));
+	asd_printk("ExecQ Tail: 0x%04x\n",DDB_FIELDW(exec_queue_tail));
+	asd_printk("SendQ Tail: 0x%04x\n",DDB_FIELDW(send_queue_tail));
+	asd_printk("Active Task Count: 0x%04x\n",
+		   DDB_FIELDW(active_task_count));
+	asd_printk("ITNL Reason: 0x%02x\n", DDB_FIELDB(itnl_reason));
+	asd_printk("ITNL Timeout Const: 0x%04x\n", DDB_FIELDW(itnl_timeout));
+	asd_printk("ITNL timestamp: 0x%08x\n", DDB_FIELDD(itnl_timestamp));
+}
+
+void asd_dump_ddb_0(struct asd_ha_struct *asd_ha)
+{
+#define DDB0_FIELDB(__name)                                  \
+	asd_ddbsite_read_byte(asd_ha, 0,                     \
+			      offsetof(struct asd_ddb_seq_shared, __name))
+#define DDB0_FIELDW(__name)                                  \
+	asd_ddbsite_read_word(asd_ha, 0,                     \
+			      offsetof(struct asd_ddb_seq_shared, __name))
+
+#define DDB0_FIELDD(__name)                                  \
+	asd_ddbsite_read_dword(asd_ha,0 ,                    \
+			       offsetof(struct asd_ddb_seq_shared, __name))
+
+#define DDB0_FIELDA(__name, _o)                              \
+	asd_ddbsite_read_byte(asd_ha, 0,                     \
+			      offsetof(struct asd_ddb_seq_shared, __name)+_o)
+
+
+	asd_printk("DDB: 0\n");
+	asd_printk("q_free_ddb_head:%04x\n", DDB0_FIELDW(q_free_ddb_head));
+	asd_printk("q_free_ddb_tail:%04x\n", DDB0_FIELDW(q_free_ddb_tail));
+	asd_printk("q_free_ddb_cnt:%04x\n",  DDB0_FIELDW(q_free_ddb_cnt));
+	asd_printk("q_used_ddb_head:%04x\n", DDB0_FIELDW(q_used_ddb_head));
+	asd_printk("q_used_ddb_tail:%04x\n", DDB0_FIELDW(q_used_ddb_tail));
+	asd_printk("shared_mem_lock:%04x\n", DDB0_FIELDW(shared_mem_lock));
+	asd_printk("smp_conn_tag:%04x\n",    DDB0_FIELDW(smp_conn_tag));
+	asd_printk("est_nexus_buf_cnt:%04x\n", DDB0_FIELDW(est_nexus_buf_cnt));
+	asd_printk("est_nexus_buf_thresh:%04x\n",
+		   DDB0_FIELDW(est_nexus_buf_thresh));
+	asd_printk("conn_not_active:%02x\n", DDB0_FIELDB(conn_not_active));
+	asd_printk("phy_is_up:%02x\n",       DDB0_FIELDB(phy_is_up));
+	asd_printk("port_map_by_links:%02x %02x %02x %02x "
+		   "%02x %02x %02x %02x\n",
+		   DDB0_FIELDA(port_map_by_links, 0),
+		   DDB0_FIELDA(port_map_by_links, 1),
+		   DDB0_FIELDA(port_map_by_links, 2),
+		   DDB0_FIELDA(port_map_by_links, 3),
+		   DDB0_FIELDA(port_map_by_links, 4),
+		   DDB0_FIELDA(port_map_by_links, 5),
+		   DDB0_FIELDA(port_map_by_links, 6),
+		   DDB0_FIELDA(port_map_by_links, 7));
+}
+
+static void asd_dump_scb_site(struct asd_ha_struct *asd_ha, u16 site_no)
+{
+
+#define SCB_FIELDB(__name)                                                 \
+	asd_scbsite_read_byte(asd_ha, site_no, sizeof(struct scb_header)   \
+			      + offsetof(struct initiate_ssp_task, __name))
+#define SCB_FIELDW(__name)                                                 \
+	asd_scbsite_read_word(asd_ha, site_no, sizeof(struct scb_header)   \
+			      + offsetof(struct initiate_ssp_task, __name))
+#define SCB_FIELDD(__name)                                                 \
+	asd_scbsite_read_dword(asd_ha, site_no, sizeof(struct scb_header)  \
+			       + offsetof(struct initiate_ssp_task, __name))
+
+	asd_printk("Total Xfer Len: 0x%08x.\n", SCB_FIELDD(total_xfer_len));
+	asd_printk("Frame Type: 0x%02x.\n", SCB_FIELDB(ssp_frame.frame_type));
+	asd_printk("Tag: 0x%04x.\n", SCB_FIELDW(ssp_frame.tag));
+	asd_printk("Target Port Xfer Tag: 0x%04x.\n",
+		   SCB_FIELDW(ssp_frame.tptt));
+	asd_printk("Data Offset: 0x%08x.\n", SCB_FIELDW(ssp_frame.data_offs));
+	asd_printk("Retry Count: 0x%02x.\n", SCB_FIELDB(retry_count));
+}
+
+/**
+ * asd_dump_scb_sites -- dump currently used CSEQ SCB sites
+ * @asd_ha: pointer to host adapter struct
+ */
+void asd_dump_scb_sites(struct asd_ha_struct *asd_ha)
+{
+	u16	site_no;
+
+	for (site_no = 0; site_no < asd_ha->hw_prof.max_scbs; site_no++) {
+		u8 opcode;
+
+		if (!SCB_SITE_VALID(site_no))
+			continue;
+
+		/* We are only interested in SCB sites currently used.
+		 */
+		opcode = asd_scbsite_read_byte(asd_ha, site_no,
+					       offsetof(struct scb_header,
+							opcode));
+		if (opcode == 0xFF)
+			continue;
+
+		asd_printk("\nSCB: 0x%x\n", site_no);
+		asd_dump_scb_site(asd_ha, site_no);
+	}
+}
+
+/**
+ * ads_dump_seq_state -- dump CSEQ and LSEQ states
+ * @asd_ha: pointer to host adapter structure
+ * @lseq_mask: mask of LSEQs of interest
+ */
+void asd_dump_seq_state(struct asd_ha_struct *asd_ha, u8 lseq_mask)
+{
+	int lseq;
+
+	asd_dump_cseq_state(asd_ha);
+
+	if (lseq_mask != 0)
+		for_each_sequencer(lseq_mask, lseq_mask, lseq)
+			asd_dump_lseq_state(asd_ha, lseq);
+}
+
+void asd_dump_frame_rcvd(struct asd_phy *phy,
+			 struct done_list_struct *dl)
+{
+	unsigned long flags;
+	int i;
+
+	switch ((dl->status_block[1] & 0x70) >> 3) {
+	case SAS_PROTO_STP:
+		ASD_DPRINTK("STP proto device-to-host FIS:\n");
+		break;
+	default:
+	case SAS_PROTO_SSP:
+		ASD_DPRINTK("SAS proto IDENTIFY:\n");
+		break;
+	}
+	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
+	for (i = 0; i < phy->sas_phy.frame_rcvd_size; i+=4)
+		ASD_DPRINTK("%02x: %02x %02x %02x %02x\n",
+			    i,
+			    phy->frame_rcvd[i],
+			    phy->frame_rcvd[i+1],
+			    phy->frame_rcvd[i+2],
+			    phy->frame_rcvd[i+3]);
+	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
+}
+
+static inline void asd_dump_scb(struct asd_ascb *ascb, int ind)
+{
+	asd_printk("scb%d: vaddr: 0x%p, dma_handle: 0x%llx, next: 0x%llx, "
+		   "index:%d, opcode:0x%02x\n",
+		   ind, ascb->dma_scb.vaddr,
+		   (unsigned long long)ascb->dma_scb.dma_handle,
+		   (unsigned long long)
+		   le64_to_cpu(ascb->scb->header.next_scb),
+		   le16_to_cpu(ascb->scb->header.index),
+		   ascb->scb->header.opcode);
+}
+
+void asd_dump_scb_list(struct asd_ascb *ascb, int num)
+{
+	int i = 0;
+
+	asd_printk("dumping %d scbs:\n", num);
+
+	asd_dump_scb(ascb, i++);
+	--num;
+
+	if (num > 0 && !list_empty(&ascb->list)) {
+		struct list_head *el;
+
+		list_for_each(el, &ascb->list) {
+			struct asd_ascb *s = list_entry(el, struct asd_ascb,
+							list);
+			asd_dump_scb(s, i++);
+			if (--num <= 0)
+				break;
+		}
+	}
+}
+
+#endif /* ASD_DEBUG */

drivers/scsi/aic94xx/aic94xx_dump.h

@@ -0,0 +1,52 @@
+/*
+ * Aic94xx SAS/SATA driver dump header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef _AIC94XX_DUMP_H_
+#define _AIC94XX_DUMP_H_
+
+#ifdef ASD_DEBUG
+
+void asd_dump_ddb_0(struct asd_ha_struct *asd_ha);
+void asd_dump_target_ddb(struct asd_ha_struct *asd_ha, u16 site_no);
+void asd_dump_scb_sites(struct asd_ha_struct *asd_ha);
+void asd_dump_seq_state(struct asd_ha_struct *asd_ha, u8 lseq_mask);
+void asd_dump_frame_rcvd(struct asd_phy *phy,
+			 struct done_list_struct *dl);
+void asd_dump_scb_list(struct asd_ascb *ascb, int num);
+#else /* ASD_DEBUG */
+
+static inline void asd_dump_ddb_0(struct asd_ha_struct *asd_ha) { }
+static inline void asd_dump_target_ddb(struct asd_ha_struct *asd_ha,
+				     u16 site_no) { }
+static inline void asd_dump_scb_sites(struct asd_ha_struct *asd_ha) { }
+static inline void asd_dump_seq_state(struct asd_ha_struct *asd_ha,
+				      u8 lseq_mask) { }
+static inline void asd_dump_frame_rcvd(struct asd_phy *phy,
+				       struct done_list_struct *dl) { }
+static inline void asd_dump_scb_list(struct asd_ascb *ascb, int num) { }
+#endif /* ASD_DEBUG */
+
+#endif /* _AIC94XX_DUMP_H_ */

drivers/scsi/aic94xx/aic94xx_hwi.h

@@ -0,0 +1,397 @@
+/*
+ * Aic94xx SAS/SATA driver hardware interface header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef _AIC94XX_HWI_H_
+#define _AIC94XX_HWI_H_
+
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+
+#include <scsi/libsas.h>
+
+#include "aic94xx.h"
+#include "aic94xx_sas.h"
+
+/* Define ASD_MAX_PHYS to the maximum phys ever. Currently 8. */
+#define ASD_MAX_PHYS       8
+#define ASD_PCBA_SN_SIZE   12
+
+/* Those are to be further named properly, the "RAZORx" part, and
+ * subsequently included in include/linux/pci_ids.h.
+ */
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR10 0x410
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR12 0x412
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR1E 0x41E
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR30 0x430
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR32 0x432
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR3E 0x43E
+#define PCI_DEVICE_ID_ADAPTEC2_RAZOR3F 0x43F
+
+struct asd_ha_addrspace {
+	void __iomem  *addr;
+	unsigned long  start;       /* pci resource start */
+	unsigned long  len;         /* pci resource len */
+	unsigned long  flags;       /* pci resource flags */
+
+	/* addresses internal to the host adapter */
+	u32 swa_base; /* mmspace 1 (MBAR1) uses this only */
+	u32 swb_base;
+	u32 swc_base;
+};
+
+struct bios_struct {
+	int    present;
+	u8     maj;
+	u8     min;
+	u32    bld;
+};
+
+struct unit_element_struct {
+	u16    num;
+	u16    size;
+	void   *area;
+};
+
+struct flash_struct {
+	u32    bar;
+	int    present;
+	int    wide;
+	u8     manuf;
+	u8     dev_id;
+	u8     sec_prot;
+
+	u32    dir_offs;
+};
+
+struct asd_phy_desc {
+	/* From CTRL-A settings, then set to what is appropriate */
+	u8     sas_addr[SAS_ADDR_SIZE];
+	u8     max_sas_lrate;
+	u8     min_sas_lrate;
+	u8     max_sata_lrate;
+	u8     min_sata_lrate;
+	u8     flags;
+#define ASD_CRC_DIS  1
+#define ASD_SATA_SPINUP_HOLD 2
+
+	u8     phy_control_0; /* mode 5 reg 0x160 */
+	u8     phy_control_1; /* mode 5 reg 0x161 */
+	u8     phy_control_2; /* mode 5 reg 0x162 */
+	u8     phy_control_3; /* mode 5 reg 0x163 */
+};
+
+struct asd_dma_tok {
+	void *vaddr;
+	dma_addr_t dma_handle;
+	size_t size;
+};
+
+struct hw_profile {
+	struct bios_struct bios;
+	struct unit_element_struct ue;
+	struct flash_struct flash;
+
+	u8     sas_addr[SAS_ADDR_SIZE];
+	char   pcba_sn[ASD_PCBA_SN_SIZE+1];
+
+	u8     enabled_phys;	  /* mask of enabled phys */
+	struct asd_phy_desc phy_desc[ASD_MAX_PHYS];
+	u32    max_scbs;	  /* absolute sequencer scb queue size */
+	struct asd_dma_tok *scb_ext;
+	u32    max_ddbs;
+	struct asd_dma_tok *ddb_ext;
+
+	spinlock_t ddb_lock;
+	void  *ddb_bitmap;
+
+	int    num_phys;	  /* ENABLEABLE */
+	int    max_phys;	  /* REPORTED + ENABLEABLE */
+
+	unsigned addr_range;	  /* max # of addrs; max # of possible ports */
+	unsigned port_name_base;
+	unsigned dev_name_base;
+	unsigned sata_name_base;
+};
+
+struct asd_ascb {
+	struct list_head list;
+	struct asd_ha_struct *ha;
+
+	struct scb *scb;	  /* equals dma_scb->vaddr */
+	struct asd_dma_tok dma_scb;
+	struct asd_dma_tok *sg_arr;
+
+	void (*tasklet_complete)(struct asd_ascb *, struct done_list_struct *);
+	u8     uldd_timer:1;
+
+	/* internally generated command */
+	struct timer_list timer;
+	struct completion completion;
+	u8        tag_valid:1;
+	__be16    tag;		  /* error recovery only */
+
+	/* If this is an Empty SCB, index of first edb in seq->edb_arr. */
+	int    edb_index;
+
+	/* Used by the timer timeout function. */
+	int    tc_index;
+
+	void   *uldd_task;
+};
+
+#define ASD_DL_SIZE_BITS   0x8
+#define ASD_DL_SIZE        (1<<(2+ASD_DL_SIZE_BITS))
+#define ASD_DEF_DL_TOGGLE  0x01
+
+struct asd_seq_data {
+	spinlock_t pend_q_lock;
+	u16    scbpro;
+	int    pending;
+	struct list_head pend_q;
+	int    can_queue;	  /* per adapter */
+	struct asd_dma_tok next_scb; /* next scb to be delivered to CSEQ */
+
+	spinlock_t tc_index_lock;
+	void **tc_index_array;
+	void *tc_index_bitmap;
+	int   tc_index_bitmap_bits;
+
+	struct tasklet_struct dl_tasklet;
+	struct done_list_struct *dl; /* array of done list entries, equals */
+	struct asd_dma_tok *actual_dl; /* actual_dl->vaddr */
+	int    dl_toggle;
+	int    dl_next;
+
+	int    num_edbs;
+	struct asd_dma_tok **edb_arr;
+	int    num_escbs;
+	struct asd_ascb **escb_arr; /* array of pointers to escbs */
+};
+
+/* This is the Host Adapter structure.  It describes the hardware
+ * SAS adapter.
+ */
+struct asd_ha_struct {
+	struct pci_dev   *pcidev;
+	const char       *name;
+
+	struct sas_ha_struct sas_ha;
+
+	u8                revision_id;
+
+	int               iospace;
+	spinlock_t        iolock;
+	struct asd_ha_addrspace io_handle[2];
+
+	struct hw_profile hw_prof;
+
+	struct asd_phy    phys[ASD_MAX_PHYS];
+	struct asd_sas_port   ports[ASD_MAX_PHYS];
+
+	struct dma_pool  *scb_pool;
+
+	struct asd_seq_data  seq; /* sequencer related */
+};
+
+/* ---------- Common macros ---------- */
+
+#define ASD_BUSADDR_LO(__dma_handle) ((u32)(__dma_handle))
+#define ASD_BUSADDR_HI(__dma_handle) (((sizeof(dma_addr_t))==8)     \
+                                    ? ((u32)((__dma_handle) >> 32)) \
+                                    : ((u32)0))
+
+#define dev_to_asd_ha(__dev)  pci_get_drvdata(to_pci_dev(__dev))
+#define SCB_SITE_VALID(__site_no) (((__site_no) & 0xF0FF) != 0x00FF   \
+				 && ((__site_no) & 0xF0FF) > 0x001F)
+/* For each bit set in __lseq_mask, set __lseq to equal the bit
+ * position of the set bit and execute the statement following.
+ * __mc is the temporary mask, used as a mask "counter".
+ */
+#define for_each_sequencer(__lseq_mask, __mc, __lseq)                        \
+	for ((__mc)=(__lseq_mask),(__lseq)=0;(__mc)!=0;(__lseq++),(__mc)>>=1)\
+		if (((__mc) & 1))
+#define for_each_phy(__lseq_mask, __mc, __lseq)                              \
+	for ((__mc)=(__lseq_mask),(__lseq)=0;(__mc)!=0;(__lseq++),(__mc)>>=1)\
+		if (((__mc) & 1))
+
+#define PHY_ENABLED(_HA, _I) ((_HA)->hw_prof.enabled_phys & (1<<(_I)))
+
+/* ---------- DMA allocs ---------- */
+
+static inline struct asd_dma_tok *asd_dmatok_alloc(unsigned int flags)
+{
+	return kmem_cache_alloc(asd_dma_token_cache, flags);
+}
+
+static inline void asd_dmatok_free(struct asd_dma_tok *token)
+{
+	kmem_cache_free(asd_dma_token_cache, token);
+}
+
+static inline struct asd_dma_tok *asd_alloc_coherent(struct asd_ha_struct *
+						     asd_ha, size_t size,
+						     unsigned int flags)
+{
+	struct asd_dma_tok *token = asd_dmatok_alloc(flags);
+	if (token) {
+		token->size = size;
+		token->vaddr = dma_alloc_coherent(&asd_ha->pcidev->dev,
+						  token->size,
+						  &token->dma_handle,
+						  flags);
+		if (!token->vaddr) {
+			asd_dmatok_free(token);
+			token = NULL;
+		}
+	}
+	return token;
+}
+
+static inline void asd_free_coherent(struct asd_ha_struct *asd_ha,
+				     struct asd_dma_tok *token)
+{
+	if (token) {
+		dma_free_coherent(&asd_ha->pcidev->dev, token->size,
+				  token->vaddr, token->dma_handle);
+		asd_dmatok_free(token);
+	}
+}
+
+static inline void asd_init_ascb(struct asd_ha_struct *asd_ha,
+				 struct asd_ascb *ascb)
+{
+	INIT_LIST_HEAD(&ascb->list);
+	ascb->scb = ascb->dma_scb.vaddr;
+	ascb->ha = asd_ha;
+	ascb->timer.function = NULL;
+	init_timer(&ascb->timer);
+	ascb->tc_index = -1;
+	init_completion(&ascb->completion);
+}
+
+/* Must be called with the tc_index_lock held!
+ */
+static inline void asd_tc_index_release(struct asd_seq_data *seq, int index)
+{
+	seq->tc_index_array[index] = NULL;
+	clear_bit(index, seq->tc_index_bitmap);
+}
+
+/* Must be called with the tc_index_lock held!
+ */
+static inline int asd_tc_index_get(struct asd_seq_data *seq, void *ptr)
+{
+	int index;
+
+	index = find_first_zero_bit(seq->tc_index_bitmap,
+				    seq->tc_index_bitmap_bits);
+	if (index == seq->tc_index_bitmap_bits)
+		return -1;
+
+	seq->tc_index_array[index] = ptr;
+	set_bit(index, seq->tc_index_bitmap);
+
+	return index;
+}
+
+/* Must be called with the tc_index_lock held!
+ */
+static inline void *asd_tc_index_find(struct asd_seq_data *seq, int index)
+{
+	return seq->tc_index_array[index];
+}
+
+/**
+ * asd_ascb_free -- free a single aSCB after is has completed
+ * @ascb: pointer to the aSCB of interest
+ *
+ * This frees an aSCB after it has been executed/completed by
+ * the sequencer.
+ */
+static inline void asd_ascb_free(struct asd_ascb *ascb)
+{
+	if (ascb) {
+		struct asd_ha_struct *asd_ha = ascb->ha;
+		unsigned long flags;
+
+		BUG_ON(!list_empty(&ascb->list));
+		spin_lock_irqsave(&ascb->ha->seq.tc_index_lock, flags);
+		asd_tc_index_release(&ascb->ha->seq, ascb->tc_index);
+		spin_unlock_irqrestore(&ascb->ha->seq.tc_index_lock, flags);
+		dma_pool_free(asd_ha->scb_pool, ascb->dma_scb.vaddr,
+			      ascb->dma_scb.dma_handle);
+		kmem_cache_free(asd_ascb_cache, ascb);
+	}
+}
+
+/**
+ * asd_ascb_list_free -- free a list of ascbs
+ * @ascb_list: a list of ascbs
+ *
+ * This function will free a list of ascbs allocated by asd_ascb_alloc_list.
+ * It is used when say the scb queueing function returned QUEUE_FULL,
+ * and we do not need the ascbs any more.
+ */
+static inline void asd_ascb_free_list(struct asd_ascb *ascb_list)
+{
+	LIST_HEAD(list);
+	struct list_head *n, *pos;
+
+	__list_add(&list, ascb_list->list.prev, &ascb_list->list);
+	list_for_each_safe(pos, n, &list) {
+		list_del_init(pos);
+		asd_ascb_free(list_entry(pos, struct asd_ascb, list));
+	}
+}
+
+/* ---------- Function declarations ---------- */
+
+int  asd_init_hw(struct asd_ha_struct *asd_ha);
+irqreturn_t asd_hw_isr(int irq, void *dev_id, struct pt_regs *regs);
+
+
+struct asd_ascb *asd_ascb_alloc_list(struct asd_ha_struct
+				     *asd_ha, int *num,
+				     unsigned int gfp_mask);
+
+int  asd_post_ascb_list(struct asd_ha_struct *asd_ha, struct asd_ascb *ascb,
+			int num);
+int  asd_post_escb_list(struct asd_ha_struct *asd_ha, struct asd_ascb *ascb,
+			int num);
+
+int  asd_init_post_escbs(struct asd_ha_struct *asd_ha);
+void asd_build_control_phy(struct asd_ascb *ascb, int phy_id, u8 subfunc);
+void asd_control_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
+void asd_turn_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
+int  asd_enable_phys(struct asd_ha_struct *asd_ha, const u8 phy_mask);
+void asd_build_initiate_link_adm_task(struct asd_ascb *ascb, int phy_id,
+				      u8 subfunc);
+
+void asd_ascb_timedout(unsigned long data);
+int  asd_chip_hardrst(struct asd_ha_struct *asd_ha);
+
+#endif

drivers/scsi/aic94xx/aic94xx_init.c

@@ -0,0 +1,866 @@
+/*
+ * Aic94xx SAS/SATA driver initialization.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include <scsi/scsi_host.h>
+
+#include "aic94xx.h"
+#include "aic94xx_reg.h"
+#include "aic94xx_hwi.h"
+#include "aic94xx_seq.h"
+
+/* The format is "version.release.patchlevel" */
+#define ASD_DRIVER_VERSION "1.0.2"
+
+static int use_msi = 0;
+module_param_named(use_msi, use_msi, int, S_IRUGO);
+MODULE_PARM_DESC(use_msi, "\n"
+	"\tEnable(1) or disable(0) using PCI MSI.\n"
+	"\tDefault: 0");
+
+static int lldd_max_execute_num = 0;
+module_param_named(collector, lldd_max_execute_num, int, S_IRUGO);
+MODULE_PARM_DESC(collector, "\n"
+	"\tIf greater than one, tells the SAS Layer to run in Task Collector\n"
+	"\tMode.  If 1 or 0, tells the SAS Layer to run in Direct Mode.\n"
+	"\tThe aic94xx SAS LLDD supports both modes.\n"
+	"\tDefault: 0 (Direct Mode).\n");
+
+char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
+
+static struct scsi_transport_template *aic94xx_transport_template;
+
+static struct scsi_host_template aic94xx_sht = {
+	.module			= THIS_MODULE,
+	/* .name is initialized */
+	.name			= "aic94xx",
+	.queuecommand		= sas_queuecommand,
+	.target_alloc		= sas_target_alloc,
+	.slave_configure	= sas_slave_configure,
+	.slave_destroy		= sas_slave_destroy,
+	.change_queue_depth	= sas_change_queue_depth,
+	.change_queue_type	= sas_change_queue_type,
+	.bios_param		= sas_bios_param,
+	.can_queue		= 1,
+	.cmd_per_lun		= 1,
+	.this_id		= -1,
+	.sg_tablesize		= SG_ALL,
+	.max_sectors		= SCSI_DEFAULT_MAX_SECTORS,
+	.use_clustering		= ENABLE_CLUSTERING,
+};
+
+static int __devinit asd_map_memio(struct asd_ha_struct *asd_ha)
+{
+	int err, i;
+	struct asd_ha_addrspace *io_handle;
+
+	asd_ha->iospace = 0;
+	for (i = 0; i < 3; i += 2) {
+		io_handle = &asd_ha->io_handle[i==0?0:1];
+		io_handle->start = pci_resource_start(asd_ha->pcidev, i);
+		io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
+		io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
+		err = -ENODEV;
+		if (!io_handle->start || !io_handle->len) {
+			asd_printk("MBAR%d start or length for %s is 0.\n",
+				   i==0?0:1, pci_name(asd_ha->pcidev));
+			goto Err;
+		}
+		err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
+		if (err) {
+			asd_printk("couldn't reserve memory region for %s\n",
+				   pci_name(asd_ha->pcidev));
+			goto Err;
+		}
+		if (io_handle->flags & IORESOURCE_CACHEABLE)
+			io_handle->addr = ioremap(io_handle->start,
+						  io_handle->len);
+		else
+			io_handle->addr = ioremap_nocache(io_handle->start,
+							  io_handle->len);
+		if (!io_handle->addr) {
+			asd_printk("couldn't map MBAR%d of %s\n", i==0?0:1,
+				   pci_name(asd_ha->pcidev));
+			goto Err_unreq;
+		}
+	}
+
+	return 0;
+Err_unreq:
+	pci_release_region(asd_ha->pcidev, i);
+Err:
+	if (i > 0) {
+		io_handle = &asd_ha->io_handle[0];
+		iounmap(io_handle->addr);
+		pci_release_region(asd_ha->pcidev, 0);
+	}
+	return err;
+}
+
+static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
+{
+	struct asd_ha_addrspace *io_handle;
+
+	io_handle = &asd_ha->io_handle[1];
+	iounmap(io_handle->addr);
+	pci_release_region(asd_ha->pcidev, 2);
+
+	io_handle = &asd_ha->io_handle[0];
+	iounmap(io_handle->addr);
+	pci_release_region(asd_ha->pcidev, 0);
+}
+
+static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
+{
+	int i = PCI_IOBAR_OFFSET, err;
+	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];
+
+	asd_ha->iospace = 1;
+	io_handle->start = pci_resource_start(asd_ha->pcidev, i);
+	io_handle->len   = pci_resource_len(asd_ha->pcidev, i);
+	io_handle->flags = pci_resource_flags(asd_ha->pcidev, i);
+	io_handle->addr  = (void __iomem *) io_handle->start;
+	if (!io_handle->start || !io_handle->len) {
+		asd_printk("couldn't get IO ports for %s\n",
+			   pci_name(asd_ha->pcidev));
+		return -ENODEV;
+	}
+	err = pci_request_region(asd_ha->pcidev, i, ASD_DRIVER_NAME);
+	if (err) {
+		asd_printk("couldn't reserve io space for %s\n",
+			   pci_name(asd_ha->pcidev));
+	}
+
+	return err;
+}
+
+static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
+{
+	pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
+}
+
+static int __devinit asd_map_ha(struct asd_ha_struct *asd_ha)
+{
+	int err;
+	u16 cmd_reg;
+
+	err = pci_read_config_word(asd_ha->pcidev, PCI_COMMAND, &cmd_reg);
+	if (err) {
+		asd_printk("couldn't read command register of %s\n",
+			   pci_name(asd_ha->pcidev));
+		goto Err;
+	}
+
+	err = -ENODEV;
+	if (cmd_reg & PCI_COMMAND_MEMORY) {
+		if ((err = asd_map_memio(asd_ha)))
+			goto Err;
+	} else if (cmd_reg & PCI_COMMAND_IO) {
+		if ((err = asd_map_ioport(asd_ha)))
+			goto Err;
+		asd_printk("%s ioport mapped -- upgrade your hardware\n",
+			   pci_name(asd_ha->pcidev));
+	} else {
+		asd_printk("no proper device access to %s\n",
+			   pci_name(asd_ha->pcidev));
+		goto Err;
+	}
+
+	return 0;
+Err:
+	return err;
+}
+
+static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
+{
+	if (asd_ha->iospace)
+		asd_unmap_ioport(asd_ha);
+	else
+		asd_unmap_memio(asd_ha);
+}
+
+static const char *asd_dev_rev[30] = {
+	[0] = "A0",
+	[1] = "A1",
+	[8] = "B0",
+};
+
+static int __devinit asd_common_setup(struct asd_ha_struct *asd_ha)
+{
+	int err, i;
+
+	err = pci_read_config_byte(asd_ha->pcidev, PCI_REVISION_ID,
+				   &asd_ha->revision_id);
+	if (err) {
+		asd_printk("couldn't read REVISION ID register of %s\n",
+			   pci_name(asd_ha->pcidev));
+		goto Err;
+	}
+	err = -ENODEV;
+	if (asd_ha->revision_id < AIC9410_DEV_REV_B0) {
+		asd_printk("%s is revision %s (%X), which is not supported\n",
+			   pci_name(asd_ha->pcidev),
+			   asd_dev_rev[asd_ha->revision_id],
+			   asd_ha->revision_id);
+		goto Err;
+	}
+	/* Provide some sane default values. */
+	asd_ha->hw_prof.max_scbs = 512;
+	asd_ha->hw_prof.max_ddbs = 128;
+	asd_ha->hw_prof.num_phys = ASD_MAX_PHYS;
+	/* All phys are enabled, by default. */
+	asd_ha->hw_prof.enabled_phys = 0xFF;
+	for (i = 0; i < ASD_MAX_PHYS; i++) {
+		asd_ha->hw_prof.phy_desc[i].max_sas_lrate =
+			SAS_LINK_RATE_3_0_GBPS;
+		asd_ha->hw_prof.phy_desc[i].min_sas_lrate =
+			SAS_LINK_RATE_1_5_GBPS;
+		asd_ha->hw_prof.phy_desc[i].max_sata_lrate =
+			SAS_LINK_RATE_1_5_GBPS;
+		asd_ha->hw_prof.phy_desc[i].min_sata_lrate =
+			SAS_LINK_RATE_1_5_GBPS;
+	}
+
+	return 0;
+Err:
+	return err;
+}
+
+static int __devinit asd_aic9410_setup(struct asd_ha_struct *asd_ha)
+{
+	int err = asd_common_setup(asd_ha);
+
+	if (err)
+		return err;
+
+	asd_ha->hw_prof.addr_range = 8;
+	asd_ha->hw_prof.port_name_base = 0;
+	asd_ha->hw_prof.dev_name_base = 8;
+	asd_ha->hw_prof.sata_name_base = 16;
+
+	return 0;
+}
+
+static int __devinit asd_aic9405_setup(struct asd_ha_struct *asd_ha)
+{
+	int err = asd_common_setup(asd_ha);
+
+	if (err)
+		return err;
+
+	asd_ha->hw_prof.addr_range = 4;
+	asd_ha->hw_prof.port_name_base = 0;
+	asd_ha->hw_prof.dev_name_base = 4;
+	asd_ha->hw_prof.sata_name_base = 8;
+
+	return 0;
+}
+
+static ssize_t asd_show_dev_rev(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
+	return snprintf(buf, PAGE_SIZE, "%s\n",
+			asd_dev_rev[asd_ha->revision_id]);
+}
+static DEVICE_ATTR(revision, S_IRUGO, asd_show_dev_rev, NULL);
+
+static ssize_t asd_show_dev_bios_build(struct device *dev,
+				       struct device_attribute *attr,char *buf)
+{
+	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
+	return snprintf(buf, PAGE_SIZE, "%d\n", asd_ha->hw_prof.bios.bld);
+}
+static DEVICE_ATTR(bios_build, S_IRUGO, asd_show_dev_bios_build, NULL);
+
+static ssize_t asd_show_dev_pcba_sn(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
+	return snprintf(buf, PAGE_SIZE, "%s\n", asd_ha->hw_prof.pcba_sn);
+}
+static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
+
+static void asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
+{
+	device_create_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+	device_create_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
+	device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
+}
+
+static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
+{
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
+}
+
+/* The first entry, 0, is used for dynamic ids, the rest for devices
+ * we know about.
+ */
+static struct asd_pcidev_struct {
+	const char * name;
+	int (*setup)(struct asd_ha_struct *asd_ha);
+} asd_pcidev_data[] = {
+	/* Id 0 is used for dynamic ids. */
+	{ .name  = "Adaptec AIC-94xx SAS/SATA Host Adapter",
+	  .setup = asd_aic9410_setup
+	},
+	{ .name  = "Adaptec AIC-9410W SAS/SATA Host Adapter",
+	  .setup = asd_aic9410_setup
+	},
+	{ .name  = "Adaptec AIC-9405W SAS/SATA Host Adapter",
+	  .setup = asd_aic9405_setup
+	},
+};
+
+static inline int asd_create_ha_caches(struct asd_ha_struct *asd_ha)
+{
+	asd_ha->scb_pool = dma_pool_create(ASD_DRIVER_NAME "_scb_pool",
+					   &asd_ha->pcidev->dev,
+					   sizeof(struct scb),
+					   8, 0);
+	if (!asd_ha->scb_pool) {
+		asd_printk("couldn't create scb pool\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/**
+ * asd_free_edbs -- free empty data buffers
+ * asd_ha: pointer to host adapter structure
+ */
+static inline void asd_free_edbs(struct asd_ha_struct *asd_ha)
+{
+	struct asd_seq_data *seq = &asd_ha->seq;
+	int i;
+
+	for (i = 0; i < seq->num_edbs; i++)
+		asd_free_coherent(asd_ha, seq->edb_arr[i]);
+	kfree(seq->edb_arr);
+	seq->edb_arr = NULL;
+}
+
+static inline void asd_free_escbs(struct asd_ha_struct *asd_ha)
+{
+	struct asd_seq_data *seq = &asd_ha->seq;
+	int i;
+
+	for (i = 0; i < seq->num_escbs; i++) {
+		if (!list_empty(&seq->escb_arr[i]->list))
+			list_del_init(&seq->escb_arr[i]->list);
+
+		asd_ascb_free(seq->escb_arr[i]);
+	}
+	kfree(seq->escb_arr);
+	seq->escb_arr = NULL;
+}
+
+static inline void asd_destroy_ha_caches(struct asd_ha_struct *asd_ha)
+{
+	int i;
+
+	if (asd_ha->hw_prof.ddb_ext)
+		asd_free_coherent(asd_ha, asd_ha->hw_prof.ddb_ext);
+	if (asd_ha->hw_prof.scb_ext)
+		asd_free_coherent(asd_ha, asd_ha->hw_prof.scb_ext);
+
+	if (asd_ha->hw_prof.ddb_bitmap)
+		kfree(asd_ha->hw_prof.ddb_bitmap);
+	asd_ha->hw_prof.ddb_bitmap = NULL;
+
+	for (i = 0; i < ASD_MAX_PHYS; i++) {
+		struct asd_phy *phy = &asd_ha->phys[i];
+
+		asd_free_coherent(asd_ha, phy->id_frm_tok);
+	}
+	if (asd_ha->seq.escb_arr)
+		asd_free_escbs(asd_ha);
+	if (asd_ha->seq.edb_arr)
+		asd_free_edbs(asd_ha);
+	if (asd_ha->hw_prof.ue.area) {
+		kfree(asd_ha->hw_prof.ue.area);
+		asd_ha->hw_prof.ue.area = NULL;
+	}
+	if (asd_ha->seq.tc_index_array) {
+		kfree(asd_ha->seq.tc_index_array);
+		kfree(asd_ha->seq.tc_index_bitmap);
+		asd_ha->seq.tc_index_array = NULL;
+		asd_ha->seq.tc_index_bitmap = NULL;
+	}
+	if (asd_ha->seq.actual_dl) {
+			asd_free_coherent(asd_ha, asd_ha->seq.actual_dl);
+			asd_ha->seq.actual_dl = NULL;
+			asd_ha->seq.dl = NULL;
+	}
+	if (asd_ha->seq.next_scb.vaddr) {
+		dma_pool_free(asd_ha->scb_pool, asd_ha->seq.next_scb.vaddr,
+			      asd_ha->seq.next_scb.dma_handle);
+		asd_ha->seq.next_scb.vaddr = NULL;
+	}
+	dma_pool_destroy(asd_ha->scb_pool);
+	asd_ha->scb_pool = NULL;
+}
+
+kmem_cache_t *asd_dma_token_cache;
+kmem_cache_t *asd_ascb_cache;
+
+static int asd_create_global_caches(void)
+{
+	if (!asd_dma_token_cache) {
+		asd_dma_token_cache
+			= kmem_cache_create(ASD_DRIVER_NAME "_dma_token",
+					    sizeof(struct asd_dma_tok),
+					    0,
+					    SLAB_HWCACHE_ALIGN,
+					    NULL, NULL);
+		if (!asd_dma_token_cache) {
+			asd_printk("couldn't create dma token cache\n");
+			return -ENOMEM;
+		}
+	}
+
+	if (!asd_ascb_cache) {
+		asd_ascb_cache = kmem_cache_create(ASD_DRIVER_NAME "_ascb",
+						   sizeof(struct asd_ascb),
+						   0,
+						   SLAB_HWCACHE_ALIGN,
+						   NULL, NULL);
+		if (!asd_ascb_cache) {
+			asd_printk("couldn't create ascb cache\n");
+			goto Err;
+		}
+	}
+
+	return 0;
+Err:
+	kmem_cache_destroy(asd_dma_token_cache);
+	asd_dma_token_cache = NULL;
+	return -ENOMEM;
+}
+
+static void asd_destroy_global_caches(void)
+{
+	if (asd_dma_token_cache)
+		kmem_cache_destroy(asd_dma_token_cache);
+	asd_dma_token_cache = NULL;
+
+	if (asd_ascb_cache)
+		kmem_cache_destroy(asd_ascb_cache);
+	asd_ascb_cache = NULL;
+}
+
+static int asd_register_sas_ha(struct asd_ha_struct *asd_ha)
+{
+	int i;
+	struct asd_sas_phy   **sas_phys =
+		kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_phy), GFP_KERNEL);
+	struct asd_sas_port  **sas_ports =
+		kmalloc(ASD_MAX_PHYS * sizeof(struct asd_sas_port), GFP_KERNEL);
+
+	if (!sas_phys || !sas_ports) {
+		kfree(sas_phys);
+		kfree(sas_ports);
+		return -ENOMEM;
+	}
+
+	asd_ha->sas_ha.sas_ha_name = (char *) asd_ha->name;
+	asd_ha->sas_ha.lldd_module = THIS_MODULE;
+	asd_ha->sas_ha.sas_addr = &asd_ha->hw_prof.sas_addr[0];
+
+	for (i = 0; i < ASD_MAX_PHYS; i++) {
+		sas_phys[i] = &asd_ha->phys[i].sas_phy;
+		sas_ports[i] = &asd_ha->ports[i];
+	}
+
+	asd_ha->sas_ha.sas_phy = sas_phys;
+	asd_ha->sas_ha.sas_port= sas_ports;
+	asd_ha->sas_ha.num_phys= ASD_MAX_PHYS;
+
+	asd_ha->sas_ha.lldd_queue_size = asd_ha->seq.can_queue;
+
+	return sas_register_ha(&asd_ha->sas_ha);
+}
+
+static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha)
+{
+	int err;
+
+	err = sas_unregister_ha(&asd_ha->sas_ha);
+
+	sas_remove_host(asd_ha->sas_ha.core.shost);
+	scsi_remove_host(asd_ha->sas_ha.core.shost);
+	scsi_host_put(asd_ha->sas_ha.core.shost);
+
+	kfree(asd_ha->sas_ha.sas_phy);
+	kfree(asd_ha->sas_ha.sas_port);
+
+	return err;
+}
+
+static int __devinit asd_pci_probe(struct pci_dev *dev,
+				   const struct pci_device_id *id)
+{
+	struct asd_pcidev_struct *asd_dev;
+	unsigned asd_id = (unsigned) id->driver_data;
+	struct asd_ha_struct *asd_ha;
+	struct Scsi_Host *shost;
+	int err;
+
+	if (asd_id >= ARRAY_SIZE(asd_pcidev_data)) {
+		asd_printk("wrong driver_data in PCI table\n");
+		return -ENODEV;
+	}
+
+	if ((err = pci_enable_device(dev))) {
+		asd_printk("couldn't enable device %s\n", pci_name(dev));
+		return err;
+	}
+
+	pci_set_master(dev);
+
+	err = -ENOMEM;
+
+	shost = scsi_host_alloc(&aic94xx_sht, sizeof(void *));
+	if (!shost)
+		goto Err;
+
+	asd_dev = &asd_pcidev_data[asd_id];
+
+	asd_ha = kzalloc(sizeof(*asd_ha), GFP_KERNEL);
+	if (!asd_ha) {
+		asd_printk("out of memory\n");
+		goto Err;
+	}
+	asd_ha->pcidev = dev;
+	asd_ha->sas_ha.pcidev = asd_ha->pcidev;
+	asd_ha->sas_ha.lldd_ha = asd_ha;
+
+	asd_ha->name = asd_dev->name;
+	asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
+
+	SHOST_TO_SAS_HA(shost) = &asd_ha->sas_ha;
+	asd_ha->sas_ha.core.shost = shost;
+	shost->transportt = aic94xx_transport_template;
+	shost->max_id = ~0;
+	shost->max_lun = ~0;
+	shost->max_cmd_len = 16;
+
+	err = scsi_add_host(shost, &dev->dev);
+	if (err) {
+		scsi_host_put(shost);
+		goto Err_free;
+	}
+
+
+
+	err = asd_dev->setup(asd_ha);
+	if (err)
+		goto Err_free;
+
+	err = -ENODEV;
+	if (!pci_set_dma_mask(dev, DMA_64BIT_MASK)
+	    && !pci_set_consistent_dma_mask(dev, DMA_64BIT_MASK))
+		;
+	else if (!pci_set_dma_mask(dev, DMA_32BIT_MASK)
+		 && !pci_set_consistent_dma_mask(dev, DMA_32BIT_MASK))
+		;
+	else {
+		asd_printk("no suitable DMA mask for %s\n", pci_name(dev));
+		goto Err_free;
+	}
+
+	pci_set_drvdata(dev, asd_ha);
+
+	err = asd_map_ha(asd_ha);
+	if (err)
+		goto Err_free;
+
+	err = asd_create_ha_caches(asd_ha);
+        if (err)
+		goto Err_unmap;
+
+	err = asd_init_hw(asd_ha);
+	if (err)
+		goto Err_free_cache;
+
+	asd_printk("device %s: SAS addr %llx, PCBA SN %s, %d phys, %d enabled "
+		   "phys, flash %s, BIOS %s%d\n",
+		   pci_name(dev), SAS_ADDR(asd_ha->hw_prof.sas_addr),
+		   asd_ha->hw_prof.pcba_sn, asd_ha->hw_prof.max_phys,
+		   asd_ha->hw_prof.num_phys,
+		   asd_ha->hw_prof.flash.present ? "present" : "not present",
+		   asd_ha->hw_prof.bios.present ? "build " : "not present",
+		   asd_ha->hw_prof.bios.bld);
+
+	shost->can_queue = asd_ha->seq.can_queue;
+
+	if (use_msi)
+		pci_enable_msi(asd_ha->pcidev);
+
+	err = request_irq(asd_ha->pcidev->irq, asd_hw_isr, SA_SHIRQ,
+			  ASD_DRIVER_NAME, asd_ha);
+	if (err) {
+		asd_printk("couldn't get irq %d for %s\n",
+			   asd_ha->pcidev->irq, pci_name(asd_ha->pcidev));
+		goto Err_irq;
+	}
+	asd_enable_ints(asd_ha);
+
+	err = asd_init_post_escbs(asd_ha);
+	if (err) {
+		asd_printk("couldn't post escbs for %s\n",
+			   pci_name(asd_ha->pcidev));
+		goto Err_escbs;
+	}
+	ASD_DPRINTK("escbs posted\n");
+
+	asd_create_dev_attrs(asd_ha);
+
+	err = asd_register_sas_ha(asd_ha);
+	if (err)
+		goto Err_reg_sas;
+
+	err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
+	if (err) {
+		asd_printk("coudln't enable phys, err:%d\n", err);
+		goto Err_en_phys;
+	}
+	ASD_DPRINTK("enabled phys\n");
+	/* give the phy enabling interrupt event time to come in (1s
+	 * is empirically about all it takes) */
+	ssleep(1);
+	/* Wait for discovery to finish */
+	scsi_flush_work(asd_ha->sas_ha.core.shost);
+
+	return 0;
+Err_en_phys:
+	asd_unregister_sas_ha(asd_ha);
+Err_reg_sas:
+	asd_remove_dev_attrs(asd_ha);
+Err_escbs:
+	asd_disable_ints(asd_ha);
+	free_irq(dev->irq, asd_ha);
+Err_irq:
+	if (use_msi)
+		pci_disable_msi(dev);
+	asd_chip_hardrst(asd_ha);
+Err_free_cache:
+	asd_destroy_ha_caches(asd_ha);
+Err_unmap:
+	asd_unmap_ha(asd_ha);
+Err_free:
+	kfree(asd_ha);
+	scsi_remove_host(shost);
+Err:
+	pci_disable_device(dev);
+	return err;
+}
+
+static void asd_free_queues(struct asd_ha_struct *asd_ha)
+{
+	unsigned long flags;
+	LIST_HEAD(pending);
+	struct list_head *n, *pos;
+
+	spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
+	asd_ha->seq.pending = 0;
+	list_splice_init(&asd_ha->seq.pend_q, &pending);
+	spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
+
+	if (!list_empty(&pending))
+		ASD_DPRINTK("Uh-oh! Pending is not empty!\n");
+
+	list_for_each_safe(pos, n, &pending) {
+		struct asd_ascb *ascb = list_entry(pos, struct asd_ascb, list);
+		list_del_init(pos);
+		ASD_DPRINTK("freeing from pending\n");
+		asd_ascb_free(ascb);
+	}
+}
+
+static void asd_turn_off_leds(struct asd_ha_struct *asd_ha)
+{
+	u8 phy_mask = asd_ha->hw_prof.enabled_phys;
+	u8 i;
+
+	for_each_phy(phy_mask, phy_mask, i) {
+		asd_turn_led(asd_ha, i, 0);
+		asd_control_led(asd_ha, i, 0);
+	}
+}
+
+static void __devexit asd_pci_remove(struct pci_dev *dev)
+{
+	struct asd_ha_struct *asd_ha = pci_get_drvdata(dev);
+
+	if (!asd_ha)
+		return;
+
+	asd_unregister_sas_ha(asd_ha);
+
+	asd_disable_ints(asd_ha);
+
+	asd_remove_dev_attrs(asd_ha);
+
+	/* XXX more here as needed */
+
+	free_irq(dev->irq, asd_ha);
+	if (use_msi)
+		pci_disable_msi(asd_ha->pcidev);
+	asd_turn_off_leds(asd_ha);
+	asd_chip_hardrst(asd_ha);
+	asd_free_queues(asd_ha);
+	asd_destroy_ha_caches(asd_ha);
+	asd_unmap_ha(asd_ha);
+	kfree(asd_ha);
+	pci_disable_device(dev);
+	return;
+}
+
+static ssize_t asd_version_show(struct device_driver *driver, char *buf)
+{
+	return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
+}
+static DRIVER_ATTR(version, S_IRUGO, asd_version_show, NULL);
+
+static void asd_create_driver_attrs(struct device_driver *driver)
+{
+	driver_create_file(driver, &driver_attr_version);
+}
+
+static void asd_remove_driver_attrs(struct device_driver *driver)
+{
+	driver_remove_file(driver, &driver_attr_version);
+}
+
+static struct sas_domain_function_template aic94xx_transport_functions = {
+	.lldd_port_formed	= asd_update_port_links,
+
+	.lldd_dev_found		= asd_dev_found,
+	.lldd_dev_gone		= asd_dev_gone,
+
+	.lldd_execute_task	= asd_execute_task,
+
+	.lldd_abort_task	= asd_abort_task,
+	.lldd_abort_task_set	= asd_abort_task_set,
+	.lldd_clear_aca		= asd_clear_aca,
+	.lldd_clear_task_set	= asd_clear_task_set,
+	.lldd_I_T_nexus_reset	= NULL,
+	.lldd_lu_reset		= asd_lu_reset,
+	.lldd_query_task	= asd_query_task,
+
+	.lldd_clear_nexus_port	= asd_clear_nexus_port,
+	.lldd_clear_nexus_ha	= asd_clear_nexus_ha,
+
+	.lldd_control_phy	= asd_control_phy,
+};
+
+static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR10),
+	 0, 0, 1},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR12),
+	 0, 0, 1},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR1E),
+	 0, 0, 1},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR30),
+	 0, 0, 2},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR32),
+	 0, 0, 2},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3E),
+	 0, 0, 2},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_RAZOR3F),
+	 0, 0, 2},
+	{}
+};
+
+MODULE_DEVICE_TABLE(pci, aic94xx_pci_table);
+
+static struct pci_driver aic94xx_pci_driver = {
+	.name		= ASD_DRIVER_NAME,
+	.id_table	= aic94xx_pci_table,
+	.probe		= asd_pci_probe,
+	.remove		= __devexit_p(asd_pci_remove),
+};
+
+static int __init aic94xx_init(void)
+{
+	int err;
+
+
+	asd_printk("%s version %s loaded\n", ASD_DRIVER_DESCRIPTION,
+		   ASD_DRIVER_VERSION);
+
+	err = asd_create_global_caches();
+	if (err)
+		return err;
+
+	aic94xx_transport_template =
+		sas_domain_attach_transport(&aic94xx_transport_functions);
+	if (!aic94xx_transport_template)
+		goto out_destroy_caches;
+
+	err = pci_register_driver(&aic94xx_pci_driver);
+	if (err)
+		goto out_release_transport;
+
+	asd_create_driver_attrs(&aic94xx_pci_driver.driver);
+
+	return err;
+
+ out_release_transport:
+	sas_release_transport(aic94xx_transport_template);
+ out_destroy_caches:
+	asd_destroy_global_caches();
+
+	return err;
+}
+
+static void __exit aic94xx_exit(void)
+{
+	asd_remove_driver_attrs(&aic94xx_pci_driver.driver);
+	pci_unregister_driver(&aic94xx_pci_driver);
+	sas_release_transport(aic94xx_transport_template);
+	asd_destroy_global_caches();
+	asd_printk("%s version %s unloaded\n", ASD_DRIVER_DESCRIPTION,
+		   ASD_DRIVER_VERSION);
+}
+
+module_init(aic94xx_init);
+module_exit(aic94xx_exit);
+
+MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
+MODULE_DESCRIPTION(ASD_DRIVER_DESCRIPTION);
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION(ASD_DRIVER_VERSION);

drivers/scsi/aic94xx/aic94xx_reg.c

@@ -0,0 +1,332 @@
+/*
+ * Aic94xx SAS/SATA driver register access.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/pci.h>
+#include "aic94xx_reg.h"
+#include "aic94xx.h"
+
+/* Writing to device address space.
+ * Offset comes before value to remind that the operation of
+ * this function is *offs = val.
+ */
+static inline void asd_write_byte(struct asd_ha_struct *asd_ha,
+				  unsigned long offs, u8 val)
+{
+	if (unlikely(asd_ha->iospace))
+		outb(val,
+		     (unsigned long)asd_ha->io_handle[0].addr + (offs & 0xFF));
+	else
+		writeb(val, asd_ha->io_handle[0].addr + offs);
+	wmb();
+}
+
+static inline void asd_write_word(struct asd_ha_struct *asd_ha,
+				  unsigned long offs, u16 val)
+{
+	if (unlikely(asd_ha->iospace))
+		outw(val,
+		     (unsigned long)asd_ha->io_handle[0].addr + (offs & 0xFF));
+	else
+		writew(val, asd_ha->io_handle[0].addr + offs);
+	wmb();
+}
+
+static inline void asd_write_dword(struct asd_ha_struct *asd_ha,
+				   unsigned long offs, u32 val)
+{
+	if (unlikely(asd_ha->iospace))
+		outl(val,
+		     (unsigned long)asd_ha->io_handle[0].addr + (offs & 0xFF));
+	else
+		writel(val, asd_ha->io_handle[0].addr + offs);
+	wmb();
+}
+
+/* Reading from device address space.
+ */
+static inline u8 asd_read_byte(struct asd_ha_struct *asd_ha,
+			       unsigned long offs)
+{
+	u8 val;
+	if (unlikely(asd_ha->iospace))
+		val = inb((unsigned long) asd_ha->io_handle[0].addr
+			  + (offs & 0xFF));
+	else
+		val = readb(asd_ha->io_handle[0].addr + offs);
+	rmb();
+	return val;
+}
+
+static inline u16 asd_read_word(struct asd_ha_struct *asd_ha,
+				unsigned long offs)
+{
+	u16 val;
+	if (unlikely(asd_ha->iospace))
+		val = inw((unsigned long)asd_ha->io_handle[0].addr
+			  + (offs & 0xFF));
+	else
+		val = readw(asd_ha->io_handle[0].addr + offs);
+	rmb();
+	return val;
+}
+
+static inline u32 asd_read_dword(struct asd_ha_struct *asd_ha,
+				 unsigned long offs)
+{
+	u32 val;
+	if (unlikely(asd_ha->iospace))
+		val = inl((unsigned long) asd_ha->io_handle[0].addr
+			  + (offs & 0xFF));
+	else
+		val = readl(asd_ha->io_handle[0].addr + offs);
+	rmb();
+	return val;
+}
+
+static inline u32 asd_mem_offs_swa(void)
+{
+	return 0;
+}
+
+static inline u32 asd_mem_offs_swc(void)
+{
+	return asd_mem_offs_swa() + MBAR0_SWA_SIZE;
+}
+
+static inline u32 asd_mem_offs_swb(void)
+{
+	return asd_mem_offs_swc() + MBAR0_SWC_SIZE + 0x20;
+}
+
+/* We know that the register wanted is in the range
+ * of the sliding window.
+ */
+#define ASD_READ_SW(ww, type, ord)                                     \
+static inline type asd_read_##ww##_##ord (struct asd_ha_struct *asd_ha,\
+					  u32 reg)                     \
+{                                                                      \
+	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];    \
+	u32 map_offs=(reg - io_handle-> ww##_base )+asd_mem_offs_##ww ();\
+	return asd_read_##ord (asd_ha, (unsigned long) map_offs);      \
+}
+
+#define ASD_WRITE_SW(ww, type, ord)                                    \
+static inline void asd_write_##ww##_##ord (struct asd_ha_struct *asd_ha,\
+				  u32 reg, type val)                   \
+{                                                                      \
+	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[0];    \
+	u32 map_offs=(reg - io_handle-> ww##_base )+asd_mem_offs_##ww ();\
+	asd_write_##ord (asd_ha, (unsigned long) map_offs, val);       \
+}
+
+ASD_READ_SW(swa, u8,  byte);
+ASD_READ_SW(swa, u16, word);
+ASD_READ_SW(swa, u32, dword);
+
+ASD_READ_SW(swb, u8,  byte);
+ASD_READ_SW(swb, u16, word);
+ASD_READ_SW(swb, u32, dword);
+
+ASD_READ_SW(swc, u8,  byte);
+ASD_READ_SW(swc, u16, word);
+ASD_READ_SW(swc, u32, dword);
+
+ASD_WRITE_SW(swa, u8,  byte);
+ASD_WRITE_SW(swa, u16, word);
+ASD_WRITE_SW(swa, u32, dword);
+
+ASD_WRITE_SW(swb, u8,  byte);
+ASD_WRITE_SW(swb, u16, word);
+ASD_WRITE_SW(swb, u32, dword);
+
+ASD_WRITE_SW(swc, u8,  byte);
+ASD_WRITE_SW(swc, u16, word);
+ASD_WRITE_SW(swc, u32, dword);
+
+/*
+ * A word about sliding windows:
+ * MBAR0 is divided into sliding windows A, C and B, in that order.
+ * SWA starts at offset 0 of MBAR0, up to 0x57, with size 0x58 bytes.
+ * SWC starts at offset 0x58 of MBAR0, up to 0x60, with size 0x8 bytes.
+ * From 0x60 to 0x7F, we have a copy of PCI config space 0x60-0x7F.
+ * SWB starts at offset 0x80 of MBAR0 and extends to the end of MBAR0.
+ * See asd_init_sw() in aic94xx_hwi.c
+ *
+ * We map the most common registers we'd access of the internal 4GB
+ * host adapter memory space.  If a register/internal memory location
+ * is wanted which is not mapped, we slide SWB, by paging it,
+ * see asd_move_swb() in aic94xx_reg.c.
+ */
+
+/**
+ * asd_move_swb -- move sliding window B
+ * @asd_ha: pointer to host adapter structure
+ * @reg: register desired to be within range of the new window
+ */
+static inline void asd_move_swb(struct asd_ha_struct *asd_ha, u32 reg)
+{
+	u32 base = reg & ~(MBAR0_SWB_SIZE-1);
+	pci_write_config_dword(asd_ha->pcidev, PCI_CONF_MBAR0_SWB, base);
+	asd_ha->io_handle[0].swb_base = base;
+}
+
+static void __asd_write_reg_byte(struct asd_ha_struct *asd_ha, u32 reg, u8 val)
+{
+	struct asd_ha_addrspace *io_handle=&asd_ha->io_handle[0];
+	BUG_ON(reg >= 0xC0000000 || reg < ALL_BASE_ADDR);
+	if (io_handle->swa_base <= reg
+	    && reg < io_handle->swa_base + MBAR0_SWA_SIZE)
+		asd_write_swa_byte (asd_ha, reg,val);
+	else if (io_handle->swb_base <= reg
+		 && reg < io_handle->swb_base + MBAR0_SWB_SIZE)
+		asd_write_swb_byte (asd_ha, reg, val);
+	else if (io_handle->swc_base <= reg
+		 && reg < io_handle->swc_base + MBAR0_SWC_SIZE)
+		asd_write_swc_byte (asd_ha, reg, val);
+	else {
+		/* Ok, we have to move SWB */
+		asd_move_swb(asd_ha, reg);
+		asd_write_swb_byte (asd_ha, reg, val);
+	}
+}
+
+#define ASD_WRITE_REG(type, ord)                                  \
+void asd_write_reg_##ord (struct asd_ha_struct *asd_ha, u32 reg, type val)\
+{                                                                 \
+	struct asd_ha_addrspace *io_handle=&asd_ha->io_handle[0]; \
+	unsigned long flags;                                      \
+	BUG_ON(reg >= 0xC0000000 || reg < ALL_BASE_ADDR);         \
+	spin_lock_irqsave(&asd_ha->iolock, flags);                \
+	if (io_handle->swa_base <= reg                            \
+	    && reg < io_handle->swa_base + MBAR0_SWA_SIZE)        \
+		asd_write_swa_##ord (asd_ha, reg,val);            \
+	else if (io_handle->swb_base <= reg                       \
+		 && reg < io_handle->swb_base + MBAR0_SWB_SIZE)   \
+		asd_write_swb_##ord (asd_ha, reg, val);           \
+	else if (io_handle->swc_base <= reg                       \
+		 && reg < io_handle->swc_base + MBAR0_SWC_SIZE)   \
+		asd_write_swc_##ord (asd_ha, reg, val);           \
+	else {                                                    \
+		/* Ok, we have to move SWB */                     \
+		asd_move_swb(asd_ha, reg);                        \
+		asd_write_swb_##ord (asd_ha, reg, val);           \
+	}                                                         \
+	spin_unlock_irqrestore(&asd_ha->iolock, flags);           \
+}
+
+ASD_WRITE_REG(u8, byte);
+ASD_WRITE_REG(u16,word);
+ASD_WRITE_REG(u32,dword);
+
+static u8 __asd_read_reg_byte(struct asd_ha_struct *asd_ha, u32 reg)
+{
+	struct asd_ha_addrspace *io_handle=&asd_ha->io_handle[0];
+	u8 val;
+	BUG_ON(reg >= 0xC0000000 || reg < ALL_BASE_ADDR);
+	if (io_handle->swa_base <= reg
+	    && reg < io_handle->swa_base + MBAR0_SWA_SIZE)
+		val = asd_read_swa_byte (asd_ha, reg);
+	else if (io_handle->swb_base <= reg
+		 && reg < io_handle->swb_base + MBAR0_SWB_SIZE)
+		val = asd_read_swb_byte (asd_ha, reg);
+	else if (io_handle->swc_base <= reg
+		 && reg < io_handle->swc_base + MBAR0_SWC_SIZE)
+		val = asd_read_swc_byte (asd_ha, reg);
+	else {
+		/* Ok, we have to move SWB */
+		asd_move_swb(asd_ha, reg);
+		val = asd_read_swb_byte (asd_ha, reg);
+	}
+	return val;
+}
+
+#define ASD_READ_REG(type, ord)                                   \
+type asd_read_reg_##ord (struct asd_ha_struct *asd_ha, u32 reg)   \
+{                                                                 \
+	struct asd_ha_addrspace *io_handle=&asd_ha->io_handle[0]; \
+	type val;                                                 \
+	unsigned long flags;                                      \
+	BUG_ON(reg >= 0xC0000000 || reg < ALL_BASE_ADDR);         \
+	spin_lock_irqsave(&asd_ha->iolock, flags);                \
+	if (io_handle->swa_base <= reg                            \
+	    && reg < io_handle->swa_base + MBAR0_SWA_SIZE)        \
+		val = asd_read_swa_##ord (asd_ha, reg);           \
+	else if (io_handle->swb_base <= reg                       \
+		 && reg < io_handle->swb_base + MBAR0_SWB_SIZE)   \
+		val = asd_read_swb_##ord (asd_ha, reg);           \
+	else if (io_handle->swc_base <= reg                       \
+		 && reg < io_handle->swc_base + MBAR0_SWC_SIZE)   \
+		val = asd_read_swc_##ord (asd_ha, reg);           \
+	else {                                                    \
+		/* Ok, we have to move SWB */                     \
+		asd_move_swb(asd_ha, reg);                        \
+		val = asd_read_swb_##ord (asd_ha, reg);           \
+	}                                                         \
+	spin_unlock_irqrestore(&asd_ha->iolock, flags);           \
+	return val;                                               \
+}
+
+ASD_READ_REG(u8, byte);
+ASD_READ_REG(u16,word);
+ASD_READ_REG(u32,dword);
+
+/**
+ * asd_read_reg_string -- read a string of bytes from io space memory
+ * @asd_ha: pointer to host adapter structure
+ * @dst: pointer to a destination buffer where data will be written to
+ * @offs: start offset (register) to read from
+ * @count: number of bytes to read
+ */
+void asd_read_reg_string(struct asd_ha_struct *asd_ha, void *dst,
+			 u32 offs, int count)
+{
+	u8 *p = dst;
+	unsigned long flags;
+
+	spin_lock_irqsave(&asd_ha->iolock, flags);
+	for ( ; count > 0; count--, offs++, p++)
+		*p = __asd_read_reg_byte(asd_ha, offs);
+	spin_unlock_irqrestore(&asd_ha->iolock, flags);
+}
+
+/**
+ * asd_write_reg_string -- write a string of bytes to io space memory
+ * @asd_ha: pointer to host adapter structure
+ * @src: pointer to source buffer where data will be read from
+ * @offs: start offset (register) to write to
+ * @count: number of bytes to write
+ */
+void asd_write_reg_string(struct asd_ha_struct *asd_ha, void *src,
+			  u32 offs, int count)
+{
+	u8 *p = src;
+	unsigned long flags;
+
+	spin_lock_irqsave(&asd_ha->iolock, flags);
+	for ( ; count > 0; count--, offs++, p++)
+		__asd_write_reg_byte(asd_ha, offs, *p);
+	spin_unlock_irqrestore(&asd_ha->iolock, flags);
+}

drivers/scsi/aic94xx/aic94xx_reg.h

@@ -0,0 +1,302 @@
+/*
+ * Aic94xx SAS/SATA driver hardware registers definitions.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef _AIC94XX_REG_H_
+#define _AIC94XX_REG_H_
+
+#include <asm/io.h>
+#include "aic94xx_hwi.h"
+
+/* Values */
+#define AIC9410_DEV_REV_B0            0x8
+
+/* MBAR0, SWA, SWB, SWC, internal memory space addresses */
+#define REG_BASE_ADDR                 0xB8000000
+#define REG_BASE_ADDR_CSEQCIO         0xB8002000
+#define REG_BASE_ADDR_EXSI            0xB8042800
+
+#define MBAR0_SWA_SIZE                0x58
+extern  u32    MBAR0_SWB_SIZE;
+#define MBAR0_SWC_SIZE                0x8
+
+/* MBAR1, points to On Chip Memory */
+#define OCM_BASE_ADDR                 0xA0000000
+#define OCM_MAX_SIZE                  0x20000
+
+/* Smallest address possible to reference */
+#define ALL_BASE_ADDR                 OCM_BASE_ADDR
+
+/* PCI configuration space registers */
+#define PCI_IOBAR_OFFSET              4
+
+#define PCI_CONF_MBAR1                0x6C
+#define PCI_CONF_MBAR0_SWA            0x70
+#define PCI_CONF_MBAR0_SWB            0x74
+#define PCI_CONF_MBAR0_SWC            0x78
+#define PCI_CONF_MBAR_KEY             0x7C
+#define PCI_CONF_FLSH_BAR             0xB8
+
+#include "aic94xx_reg_def.h"
+
+u8  asd_read_reg_byte(struct asd_ha_struct *asd_ha, u32 reg);
+u16 asd_read_reg_word(struct asd_ha_struct *asd_ha, u32 reg);
+u32 asd_read_reg_dword(struct asd_ha_struct *asd_ha, u32 reg);
+
+void asd_write_reg_byte(struct asd_ha_struct *asd_ha, u32 reg, u8 val);
+void asd_write_reg_word(struct asd_ha_struct *asd_ha, u32 reg, u16 val);
+void asd_write_reg_dword(struct asd_ha_struct *asd_ha, u32 reg, u32 val);
+
+void asd_read_reg_string(struct asd_ha_struct *asd_ha, void *dst,
+			 u32 offs, int count);
+void asd_write_reg_string(struct asd_ha_struct *asd_ha, void *src,
+			  u32 offs, int count);
+
+#define ASD_READ_OCM(type, ord, S)                                    \
+static inline type asd_read_ocm_##ord (struct asd_ha_struct *asd_ha,  \
+					 u32 offs)                    \
+{                                                                     \
+	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[1];   \
+	type val = read##S (io_handle->addr + (unsigned long) offs);  \
+	rmb();                                                        \
+	return val;                                                   \
+}
+
+ASD_READ_OCM(u8, byte, b);
+ASD_READ_OCM(u16,word, w);
+ASD_READ_OCM(u32,dword,l);
+
+#define ASD_WRITE_OCM(type, ord, S)                                    \
+static inline void asd_write_ocm_##ord (struct asd_ha_struct *asd_ha,  \
+					 u32 offs, type val)          \
+{                                                                     \
+	struct asd_ha_addrspace *io_handle = &asd_ha->io_handle[1];   \
+	write##S (val, io_handle->addr + (unsigned long) offs);       \
+	return;                                                       \
+}
+
+ASD_WRITE_OCM(u8, byte, b);
+ASD_WRITE_OCM(u16,word, w);
+ASD_WRITE_OCM(u32,dword,l);
+
+#define ASD_DDBSITE_READ(type, ord)                                        \
+static inline type asd_ddbsite_read_##ord (struct asd_ha_struct *asd_ha,   \
+					   u16 ddb_site_no,                \
+					   u16 offs)                       \
+{                                                                          \
+	asd_write_reg_word(asd_ha, ALTCIOADR, MnDDB_SITE + offs);          \
+	asd_write_reg_word(asd_ha, ADDBPTR, ddb_site_no);                  \
+	return asd_read_reg_##ord (asd_ha, CTXACCESS);                     \
+}
+
+ASD_DDBSITE_READ(u32, dword);
+ASD_DDBSITE_READ(u16, word);
+
+static inline u8 asd_ddbsite_read_byte(struct asd_ha_struct *asd_ha,
+				       u16 ddb_site_no,
+				       u16 offs)
+{
+	if (offs & 1)
+		return asd_ddbsite_read_word(asd_ha, ddb_site_no,
+					     offs & ~1) >> 8;
+	else
+		return asd_ddbsite_read_word(asd_ha, ddb_site_no,
+					     offs) & 0xFF;
+}
+
+
+#define ASD_DDBSITE_WRITE(type, ord)                                       \
+static inline void asd_ddbsite_write_##ord (struct asd_ha_struct *asd_ha,  \
+					u16 ddb_site_no,                   \
+					u16 offs, type val)                \
+{                                                                          \
+	asd_write_reg_word(asd_ha, ALTCIOADR, MnDDB_SITE + offs);          \
+	asd_write_reg_word(asd_ha, ADDBPTR, ddb_site_no);                  \
+	asd_write_reg_##ord (asd_ha, CTXACCESS, val);                      \
+}
+
+ASD_DDBSITE_WRITE(u32, dword);
+ASD_DDBSITE_WRITE(u16, word);
+
+static inline void asd_ddbsite_write_byte(struct asd_ha_struct *asd_ha,
+					  u16 ddb_site_no,
+					  u16 offs, u8 val)
+{
+	u16 base = offs & ~1;
+	u16 rval = asd_ddbsite_read_word(asd_ha, ddb_site_no, base);
+	if (offs & 1)
+		rval = (val << 8) | (rval & 0xFF);
+	else
+		rval = (rval & 0xFF00) | val;
+	asd_ddbsite_write_word(asd_ha, ddb_site_no, base, rval);
+}
+
+
+#define ASD_SCBSITE_READ(type, ord)                                        \
+static inline type asd_scbsite_read_##ord (struct asd_ha_struct *asd_ha,   \
+					   u16 scb_site_no,                \
+					   u16 offs)                       \
+{                                                                          \
+	asd_write_reg_word(asd_ha, ALTCIOADR, MnSCB_SITE + offs);          \
+	asd_write_reg_word(asd_ha, ASCBPTR, scb_site_no);                  \
+	return asd_read_reg_##ord (asd_ha, CTXACCESS);                     \
+}
+
+ASD_SCBSITE_READ(u32, dword);
+ASD_SCBSITE_READ(u16, word);
+
+static inline u8 asd_scbsite_read_byte(struct asd_ha_struct *asd_ha,
+				       u16 scb_site_no,
+				       u16 offs)
+{
+	if (offs & 1)
+		return asd_scbsite_read_word(asd_ha, scb_site_no,
+					     offs & ~1) >> 8;
+	else
+		return asd_scbsite_read_word(asd_ha, scb_site_no,
+					     offs) & 0xFF;
+}
+
+
+#define ASD_SCBSITE_WRITE(type, ord)                                       \
+static inline void asd_scbsite_write_##ord (struct asd_ha_struct *asd_ha,  \
+					u16 scb_site_no,                   \
+					u16 offs, type val)                \
+{                                                                          \
+	asd_write_reg_word(asd_ha, ALTCIOADR, MnSCB_SITE + offs);          \
+	asd_write_reg_word(asd_ha, ASCBPTR, scb_site_no);                  \
+	asd_write_reg_##ord (asd_ha, CTXACCESS, val);                      \
+}
+
+ASD_SCBSITE_WRITE(u32, dword);
+ASD_SCBSITE_WRITE(u16, word);
+
+static inline void asd_scbsite_write_byte(struct asd_ha_struct *asd_ha,
+					  u16 scb_site_no,
+					  u16 offs, u8 val)
+{
+	u16 base = offs & ~1;
+	u16 rval = asd_scbsite_read_word(asd_ha, scb_site_no, base);
+	if (offs & 1)
+		rval = (val << 8) | (rval & 0xFF);
+	else
+		rval = (rval & 0xFF00) | val;
+	asd_scbsite_write_word(asd_ha, scb_site_no, base, rval);
+}
+
+/**
+ * asd_ddbsite_update_word -- atomically update a word in a ddb site
+ * @asd_ha: pointer to host adapter structure
+ * @ddb_site_no: the DDB site number
+ * @offs: the offset into the DDB
+ * @oldval: old value found in that offset
+ * @newval: the new value to replace it
+ *
+ * This function is used when the sequencers are running and we need to
+ * update a DDB site atomically without expensive pausing and upausing
+ * of the sequencers and accessing the DDB site through the CIO bus.
+ *
+ * Return 0 on success; -EFAULT on parity error; -EAGAIN if the old value
+ * is different than the current value at that offset.
+ */
+static inline int asd_ddbsite_update_word(struct asd_ha_struct *asd_ha,
+					  u16 ddb_site_no, u16 offs,
+					  u16 oldval, u16 newval)
+{
+	u8  done;
+	u16 oval = asd_ddbsite_read_word(asd_ha, ddb_site_no, offs);
+	if (oval != oldval)
+		return -EAGAIN;
+	asd_write_reg_word(asd_ha, AOLDDATA, oldval);
+	asd_write_reg_word(asd_ha, ANEWDATA, newval);
+	do {
+		done = asd_read_reg_byte(asd_ha, ATOMICSTATCTL);
+	} while (!(done & ATOMICDONE));
+	if (done & ATOMICERR)
+		return -EFAULT;	  /* parity error */
+	else if (done & ATOMICWIN)
+		return 0;	  /* success */
+	else
+		return -EAGAIN;	  /* oldval different than current value */
+}
+
+static inline int asd_ddbsite_update_byte(struct asd_ha_struct *asd_ha,
+					  u16 ddb_site_no, u16 offs,
+					  u8 _oldval, u8 _newval)
+{
+	u16 base = offs & ~1;
+	u16 oval;
+	u16 nval = asd_ddbsite_read_word(asd_ha, ddb_site_no, base);
+	if (offs & 1) {
+		if ((nval >> 8) != _oldval)
+			return -EAGAIN;
+		nval = (_newval << 8) | (nval & 0xFF);
+		oval = (_oldval << 8) | (nval & 0xFF);
+	} else {
+		if ((nval & 0xFF) != _oldval)
+			return -EAGAIN;
+		nval = (nval & 0xFF00) | _newval;
+		oval = (nval & 0xFF00) | _oldval;
+	}
+	return asd_ddbsite_update_word(asd_ha, ddb_site_no, base, oval, nval);
+}
+
+static inline void asd_write_reg_addr(struct asd_ha_struct *asd_ha, u32 reg,
+				      dma_addr_t dma_handle)
+{
+	asd_write_reg_dword(asd_ha, reg,   ASD_BUSADDR_LO(dma_handle));
+	asd_write_reg_dword(asd_ha, reg+4, ASD_BUSADDR_HI(dma_handle));
+}
+
+static inline u32 asd_get_cmdctx_size(struct asd_ha_struct *asd_ha)
+{
+	/* DCHREVISION returns 0, possibly broken */
+	u32 ctxmemsize = asd_read_reg_dword(asd_ha, LmMnINT(0,0)) & CTXMEMSIZE;
+	return ctxmemsize ? 65536 : 32768;
+}
+
+static inline u32 asd_get_devctx_size(struct asd_ha_struct *asd_ha)
+{
+	u32 ctxmemsize = asd_read_reg_dword(asd_ha, LmMnINT(0,0)) & CTXMEMSIZE;
+	return ctxmemsize ? 8192 : 4096;
+}
+
+static inline void asd_disable_ints(struct asd_ha_struct *asd_ha)
+{
+	asd_write_reg_dword(asd_ha, CHIMINTEN, RST_CHIMINTEN);
+}
+
+static inline void asd_enable_ints(struct asd_ha_struct *asd_ha)
+{
+	/* Enable COM SAS interrupt on errors, COMSTAT */
+	asd_write_reg_dword(asd_ha, COMSTATEN,
+			    EN_CSBUFPERR | EN_CSERR | EN_OVLYERR);
+	/* Enable DCH SAS CFIFTOERR */
+	asd_write_reg_dword(asd_ha, DCHSTATUS, EN_CFIFTOERR);
+	/* Enable Host Device interrupts */
+	asd_write_reg_dword(asd_ha, CHIMINTEN, SET_CHIMINTEN);
+}
+
+#endif

drivers/scsi/aic94xx/aic94xx_sas.h

@@ -0,0 +1,785 @@
+/*
+ * Aic94xx SAS/SATA driver SAS definitions and hardware interface header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef _AIC94XX_SAS_H_
+#define _AIC94XX_SAS_H_
+
+#include <scsi/libsas.h>
+
+/* ---------- DDBs ---------- */
+/* DDBs are device descriptor blocks which describe a device in the
+ * domain that this sequencer can maintain low-level connections for
+ * us.  They are be 64 bytes.
+ */
+
+struct asd_ddb_ssp_smp_target_port {
+	u8     conn_type;	  /* byte 0 */
+#define DDB_TP_CONN_TYPE 0x81	  /* Initiator port and addr frame type 0x01 */
+
+	u8     conn_rate;
+	__be16 init_conn_tag;
+	u8     dest_sas_addr[8];  /* bytes 4-11 */
+
+	__le16 send_queue_head;
+	u8     sq_suspended;
+	u8     ddb_type;	  /* DDB_TYPE_TARGET */
+#define DDB_TYPE_UNUSED    0xFF
+#define DDB_TYPE_TARGET    0xFE
+#define DDB_TYPE_INITIATOR 0xFD
+#define DDB_TYPE_PM_PORT   0xFC
+
+	__le16 _r_a;
+	__be16 awt_def;
+
+	u8     compat_features;	  /* byte 20 */
+	u8     pathway_blocked_count;
+	__be16 arb_wait_time;
+	__be32 more_compat_features; /* byte 24 */
+
+	u8     conn_mask;
+	u8     flags;	  /* concurrent conn:2,2 and open:0(1) */
+#define CONCURRENT_CONN_SUPP 0x04
+#define OPEN_REQUIRED        0x01
+
+	u16    _r_b;
+	__le16 exec_queue_tail;
+	__le16 send_queue_tail;
+	__le16 sister_ddb;
+
+	__le16 _r_c;
+
+	u8     max_concurrent_conn;
+	u8     num_concurrent_conn;
+	u8     num_contexts;
+
+	u8     _r_d;
+
+	__le16 active_task_count;
+
+	u8     _r_e[9];
+
+	u8     itnl_reason;	  /* I_T nexus loss reason */
+
+	__le16 _r_f;
+
+	__le16 itnl_timeout;
+#define ITNL_TIMEOUT_CONST 0x7D0 /* 2 seconds */
+
+	__le32 itnl_timestamp;
+} __attribute__ ((packed));
+
+struct asd_ddb_stp_sata_target_port {
+	u8     conn_type;	  /* byte 0 */
+	u8     conn_rate;
+	__be16 init_conn_tag;
+	u8     dest_sas_addr[8];  /* bytes 4-11 */
+
+	__le16 send_queue_head;
+	u8     sq_suspended;
+	u8     ddb_type;	  /* DDB_TYPE_TARGET */
+
+	__le16 _r_a;
+
+	__be16 awt_def;
+	u8     compat_features;	  /* byte 20 */
+	u8     pathway_blocked_count;
+	__be16 arb_wait_time;
+	__be32 more_compat_features; /* byte 24 */
+
+	u8     conn_mask;
+	u8     flags;	  /* concurrent conn:2,2 and open:0(1) */
+#define SATA_MULTIPORT     0x80
+#define SUPPORTS_AFFIL     0x40
+#define STP_AFFIL_POL      0x20
+
+	u8     _r_b;
+	u8     flags2;		  /* STP close policy:0 */
+#define STP_CL_POL_NO_TX    0x00
+#define STP_CL_POL_BTW_CMDS 0x01
+
+	__le16 exec_queue_tail;
+	__le16 send_queue_tail;
+	__le16 sister_ddb;
+	__le16 ata_cmd_scbptr;
+	__le32 sata_tag_alloc_mask;
+	__le16 active_task_count;
+	__le16 _r_c;
+	__le32 sata_sactive;
+	u8     num_sata_tags;
+	u8     sata_status;
+	u8     sata_ending_status;
+	u8     itnl_reason;	  /* I_T nexus loss reason */
+	__le16 ncq_data_scb_ptr;
+	__le16 itnl_timeout;
+	__le32 itnl_timestamp;
+} __attribute__ ((packed));
+
+/* This struct asd_ddb_init_port, describes the device descriptor block
+ * of an initiator port (when the sequencer is operating in target mode).
+ * Bytes [0,11] and [20,27] are from the OPEN address frame.
+ * The sequencer allocates an initiator port DDB entry.
+ */
+struct asd_ddb_init_port {
+	u8     conn_type;	  /* byte 0 */
+	u8     conn_rate;
+	__be16 init_conn_tag;     /* BE */
+	u8     dest_sas_addr[8];
+	__le16 send_queue_head;   /* LE, byte 12 */
+	u8     sq_suspended;
+	u8     ddb_type;	  /* DDB_TYPE_INITIATOR */
+	__le16 _r_a;
+	__be16 awt_def;		  /* BE */
+	u8     compat_features;
+	u8     pathway_blocked_count;
+	__be16 arb_wait_time;	  /* BE */
+	__be32 more_compat_features; /* BE */
+	u8     conn_mask;
+	u8     flags;		  /* == 5 */
+	u16    _r_b;
+	__le16 exec_queue_tail;	  /* execution queue tail */
+	__le16 send_queue_tail;
+	__le16 sister_ddb;
+	__le16 init_resp_timeout; /* initiator response timeout */
+	__le32 _r_c;
+	__le16 active_tasks;	  /* active task count */
+	__le16 init_list;	  /* initiator list link pointer */
+	__le32 _r_d;
+	u8     max_conn_to[3]; /* from Conn-Disc mode page, in us, LE */
+	u8     itnl_reason;	  /* I_T nexus loss reason */
+	__le16 bus_inact_to; /* from Conn-Disc mode page, in 100 us, LE */
+	__le16 itnl_to;		  /* from the Protocol Specific Port Ctrl MP */
+	__le32 itnl_timestamp;
+} __attribute__ ((packed));
+
+/* This struct asd_ddb_sata_tag, describes a look-up table to be used
+ * by the sequencers.  SATA II, IDENTIFY DEVICE data, word 76, bit 8:
+ * NCQ support.  This table is used by the sequencers to find the
+ * corresponding SCB, given a SATA II tag value.
+ */
+struct asd_ddb_sata_tag {
+	__le16 scb_pointer[32];
+} __attribute__ ((packed));
+
+/* This struct asd_ddb_sata_pm_table, describes a port number to
+ * connection handle look-up table.  SATA targets attached to a port
+ * multiplier require a 4-bit port number value.  There is one DDB
+ * entry of this type for each SATA port multiplier (sister DDB).
+ * Given a SATA PM port number, this table gives us the SATA PM Port
+ * DDB of the SATA port multiplier port (i.e. the SATA target
+ * discovered on the port).
+ */
+struct asd_ddb_sata_pm_table {
+	__le16 ddb_pointer[16];
+	__le16 _r_a[16];
+} __attribute__ ((packed));
+
+/* This struct asd_ddb_sata_pm_port, describes the SATA port multiplier
+ * port format DDB.
+ */
+struct asd_ddb_sata_pm_port {
+	u8     _r_a[15];
+	u8     ddb_type;
+	u8     _r_b[13];
+	u8     pm_port_flags;
+#define PM_PORT_MASK  0xF0
+#define PM_PORT_SET   0x02
+	u8     _r_c[6];
+	__le16 sister_ddb;
+	__le16 ata_cmd_scbptr;
+	__le32 sata_tag_alloc_mask;
+	__le16 active_task_count;
+	__le16 parent_ddb;
+	__le32 sata_sactive;
+	u8     num_sata_tags;
+	u8     sata_status;
+	u8     sata_ending_status;
+	u8     _r_d[9];
+} __attribute__ ((packed));
+
+/* This struct asd_ddb_seq_shared, describes a DDB shared by the
+ * central and link sequencers.  port_map_by_links is indexed phy
+ * number [0,7]; each byte is a bit mask of all the phys that are in
+ * the same port as the indexed phy.
+ */
+struct asd_ddb_seq_shared {
+	__le16 q_free_ddb_head;
+	__le16 q_free_ddb_tail;
+	__le16 q_free_ddb_cnt;
+	__le16 q_used_ddb_head;
+	__le16 q_used_ddb_tail;
+	__le16 shared_mem_lock;
+	__le16 smp_conn_tag;
+	__le16 est_nexus_buf_cnt;
+	__le16 est_nexus_buf_thresh;
+	u32    _r_a;
+	u8     settable_max_contexts;
+	u8     _r_b[23];
+	u8     conn_not_active;
+	u8     phy_is_up;
+	u8     _r_c[8];
+	u8     port_map_by_links[8];
+} __attribute__ ((packed));
+
+/* ---------- SG Element ---------- */
+
+/* This struct sg_el, describes the hardware scatter gather buffer
+ * element.  All entries are little endian.  In an SCB, there are 2 of
+ * this, plus one more, called a link element of this indicating a
+ * sublist if needed.
+ *
+ * A link element has only the bus address set and the flags (DS) bit
+ * valid.  The bus address points to the start of the sublist.
+ *
+ * If a sublist is needed, then that sublist should also include the 2
+ * sg_el embedded in the SCB, in which case next_sg_offset is 32,
+ * since sizeof(sg_el) = 16; EOS should be 1 and EOL 0 in this case.
+ */
+struct sg_el {
+	__le64 bus_addr;
+	__le32 size;
+	__le16 _r;
+	u8     next_sg_offs;
+	u8     flags;
+#define ASD_SG_EL_DS_MASK   0x30
+#define ASD_SG_EL_DS_OCM    0x10
+#define ASD_SG_EL_DS_HM     0x00
+#define ASD_SG_EL_LIST_MASK 0xC0
+#define ASD_SG_EL_LIST_EOL  0x40
+#define ASD_SG_EL_LIST_EOS  0x80
+} __attribute__ ((packed));
+
+/* ---------- SCBs ---------- */
+
+/* An SCB (sequencer control block) is comprised of a common header
+ * and a task part, for a total of 128 bytes.  All fields are in LE
+ * order, unless otherwise noted.
+ */
+
+/* This struct scb_header, defines the SCB header format.
+ */
+struct scb_header {
+	__le64 next_scb;
+	__le16 index;		  /* transaction context */
+	u8     opcode;
+} __attribute__ ((packed));
+
+/* SCB opcodes: Execution queue
+ */
+#define INITIATE_SSP_TASK       0x00
+#define INITIATE_LONG_SSP_TASK  0x01
+#define INITIATE_BIDIR_SSP_TASK 0x02
+#define ABORT_TASK              0x03
+#define INITIATE_SSP_TMF        0x04
+#define SSP_TARG_GET_DATA       0x05
+#define SSP_TARG_GET_DATA_GOOD  0x06
+#define SSP_TARG_SEND_RESP      0x07
+#define QUERY_SSP_TASK          0x08
+#define INITIATE_ATA_TASK       0x09
+#define INITIATE_ATAPI_TASK     0x0a
+#define CONTROL_ATA_DEV         0x0b
+#define INITIATE_SMP_TASK       0x0c
+#define SMP_TARG_SEND_RESP      0x0f
+
+/* SCB opcodes: Send Queue
+ */
+#define SSP_TARG_SEND_DATA      0x40
+#define SSP_TARG_SEND_DATA_GOOD 0x41
+
+/* SCB opcodes: Link Queue
+ */
+#define CONTROL_PHY             0x80
+#define SEND_PRIMITIVE          0x81
+#define INITIATE_LINK_ADM_TASK  0x82
+
+/* SCB opcodes: other
+ */
+#define EMPTY_SCB               0xc0
+#define INITIATE_SEQ_ADM_TASK   0xc1
+#define EST_ICL_TARG_WINDOW     0xc2
+#define COPY_MEM                0xc3
+#define CLEAR_NEXUS             0xc4
+#define INITIATE_DDB_ADM_TASK   0xc6
+#define ESTABLISH_NEXUS_ESCB    0xd0
+
+#define LUN_SIZE                8
+
+/* See SAS spec, task IU
+ */
+struct ssp_task_iu {
+	u8     lun[LUN_SIZE];	  /* BE */
+	u16    _r_a;
+	u8     tmf;
+	u8     _r_b;
+	__be16 tag;		  /* BE */
+	u8     _r_c[14];
+} __attribute__ ((packed));
+
+/* See SAS spec, command IU
+ */
+struct ssp_command_iu {
+	u8     lun[LUN_SIZE];
+	u8     _r_a;
+	u8     efb_prio_attr;	  /* enable first burst, task prio & attr */
+#define EFB_MASK        0x80
+#define TASK_PRIO_MASK	0x78
+#define TASK_ATTR_MASK  0x07
+
+	u8    _r_b;
+	u8     add_cdb_len;	  /* in dwords, since bit 0,1 are reserved */
+	union {
+		u8     cdb[16];
+		struct {
+			__le64 long_cdb_addr;	  /* bus address, LE */
+			__le32 long_cdb_size;	  /* LE */
+			u8     _r_c[3];
+			u8     eol_ds;		  /* eol:6,6, ds:5,4 */
+		} long_cdb;	  /* sequencer extension */
+	};
+} __attribute__ ((packed));
+
+struct xfer_rdy_iu {
+	__be32 requested_offset;  /* BE */
+	__be32 write_data_len;	  /* BE */
+	__be32 _r_a;
+} __attribute__ ((packed));
+
+/* ---------- SCB tasks ---------- */
+
+/* This is both ssp_task and long_ssp_task
+ */
+struct initiate_ssp_task {
+	u8     proto_conn_rate;	  /* proto:6,4, conn_rate:3,0 */
+	__le32 total_xfer_len;
+	struct ssp_frame_hdr  ssp_frame;
+	struct ssp_command_iu ssp_cmd;
+	__le16 sister_scb;	  /* 0xFFFF */
+	__le16 conn_handle;	  /* index to DDB for the intended target */
+	u8     data_dir;	  /* :1,0 */
+#define DATA_DIR_NONE   0x00
+#define DATA_DIR_IN     0x01
+#define DATA_DIR_OUT    0x02
+#define DATA_DIR_BYRECIPIENT 0x03
+
+	u8     _r_a;
+	u8     retry_count;
+	u8     _r_b[5];
+	struct sg_el sg_element[3]; /* 2 real and 1 link */
+} __attribute__ ((packed));
+
+/* This defines both ata_task and atapi_task.
+ * ata: C bit of FIS should be 1,
+ * atapi: C bit of FIS should be 1, and command register should be 0xA0,
+ * to indicate a packet command.
+ */
+struct initiate_ata_task {
+	u8     proto_conn_rate;
+	__le32 total_xfer_len;
+	struct host_to_dev_fis fis;
+	__le32 data_offs;
+	u8     atapi_packet[16];
+	u8     _r_a[12];
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     ata_flags;	  /* CSMI:6,6, DTM:4,4, QT:3,3, data dir:1,0 */
+#define CSMI_TASK           0x40
+#define DATA_XFER_MODE_DMA  0x10
+#define ATA_Q_TYPE_MASK     0x08
+#define	ATA_Q_TYPE_UNTAGGED 0x00
+#define ATA_Q_TYPE_NCQ      0x08
+
+	u8     _r_b;
+	u8     retry_count;
+	u8     _r_c;
+	u8     flags;
+#define STP_AFFIL_POLICY   0x20
+#define SET_AFFIL_POLICY   0x10
+#define RET_PARTIAL_SGLIST 0x02
+
+	u8     _r_d[3];
+	struct sg_el sg_element[3];
+} __attribute__ ((packed));
+
+struct initiate_smp_task {
+	u8     proto_conn_rate;
+	u8     _r_a[40];
+	struct sg_el smp_req;
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     _r_c[8];
+	struct sg_el smp_resp;
+	u8     _r_d[32];
+} __attribute__ ((packed));
+
+struct control_phy {
+	u8     phy_id;
+	u8     sub_func;
+#define DISABLE_PHY            0x00
+#define ENABLE_PHY             0x01
+#define RELEASE_SPINUP_HOLD    0x02
+#define ENABLE_PHY_NO_SAS_OOB  0x03
+#define ENABLE_PHY_NO_SATA_OOB 0x04
+#define PHY_NO_OP              0x05
+#define EXECUTE_HARD_RESET     0x81
+
+	u8     func_mask;
+	u8     speed_mask;
+	u8     hot_plug_delay;
+	u8     port_type;
+	u8     flags;
+#define DEV_PRES_TIMER_OVERRIDE_ENABLE 0x01
+#define DISABLE_PHY_IF_OOB_FAILS       0x02
+
+	__le32 timeout_override;
+	u8     link_reset_retries;
+	u8     _r_a[47];
+	__le16 conn_handle;
+	u8     _r_b[56];
+} __attribute__ ((packed));
+
+struct control_ata_dev {
+	u8     proto_conn_rate;
+	__le32 _r_a;
+	struct host_to_dev_fis fis;
+	u8     _r_b[32];
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     ata_flags;	  /* 0 */
+	u8     _r_c[55];
+} __attribute__ ((packed));
+
+struct empty_scb {
+	u8     num_valid;
+	__le32 _r_a;
+#define ASD_EDBS_PER_SCB 7
+/* header+data+CRC+DMA suffix data */
+#define ASD_EDB_SIZE (24+1024+4+16)
+	struct sg_el eb[ASD_EDBS_PER_SCB];
+#define ELEMENT_NOT_VALID  0xC0
+} __attribute__ ((packed));
+
+struct initiate_link_adm {
+	u8     phy_id;
+	u8     sub_func;
+#define GET_LINK_ERROR_COUNT      0x00
+#define RESET_LINK_ERROR_COUNT    0x01
+#define ENABLE_NOTIFY_SPINUP_INTS 0x02
+
+	u8     _r_a[57];
+	__le16 conn_handle;
+	u8     _r_b[56];
+} __attribute__ ((packed));
+
+struct copy_memory {
+	u8     _r_a;
+	__le16 xfer_len;
+	__le16 _r_b;
+	__le64 src_busaddr;
+	u8     src_ds;		  /* See definition of sg_el */
+	u8     _r_c[45];
+	__le16 conn_handle;
+	__le64 _r_d;
+	__le64 dest_busaddr;
+	u8     dest_ds;		  /* See definition of sg_el */
+	u8     _r_e[39];
+} __attribute__ ((packed));
+
+struct abort_task {
+	u8     proto_conn_rate;
+	__le32 _r_a;
+	struct ssp_frame_hdr ssp_frame;
+	struct ssp_task_iu ssp_task;
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     flags;	  /* ovrd_itnl_timer:3,3, suspend_data_trans:2,2 */
+#define SUSPEND_DATA_TRANS 0x04
+
+	u8     _r_b;
+	u8     retry_count;
+	u8     _r_c[5];
+	__le16 index;  /* Transaction context of task to be queried */
+	__le16 itnl_to;
+	u8     _r_d[44];
+} __attribute__ ((packed));
+
+struct clear_nexus {
+	u8     nexus;
+#define NEXUS_ADAPTER  0x00
+#define NEXUS_PORT     0x01
+#define NEXUS_I_T      0x02
+#define NEXUS_I_T_L    0x03
+#define NEXUS_TAG      0x04
+#define NEXUS_TRANS_CX 0x05
+#define NEXUS_SATA_TAG 0x06
+#define NEXUS_T_L      0x07
+#define NEXUS_L        0x08
+#define NEXUS_T_TAG    0x09
+
+	__le32 _r_a;
+	u8     flags;
+#define SUSPEND_TX     0x80
+#define RESUME_TX      0x40
+#define SEND_Q         0x04
+#define EXEC_Q         0x02
+#define NOTINQ         0x01
+
+	u8     _r_b[3];
+	u8     conn_mask;
+	u8     _r_c[19];
+	struct ssp_task_iu ssp_task; /* LUN and TAG */
+	__le16 _r_d;
+	__le16 conn_handle;
+	__le64 _r_e;
+	__le16 index;  /* Transaction context of task to be cleared */
+	__le16 context;		  /* Clear nexus context */
+	u8     _r_f[44];
+} __attribute__ ((packed));
+
+struct initiate_ssp_tmf {
+	u8     proto_conn_rate;
+	__le32 _r_a;
+	struct ssp_frame_hdr ssp_frame;
+	struct ssp_task_iu ssp_task;
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     flags;	  /* itnl override and suspend data tx */
+#define OVERRIDE_ITNL_TIMER  8
+
+	u8     _r_b;
+	u8     retry_count;
+	u8     _r_c[5];
+	__le16 index;  /* Transaction context of task to be queried */
+	__le16 itnl_to;
+	u8     _r_d[44];
+} __attribute__ ((packed));
+
+/* Transmits an arbitrary primitive on the link.
+ * Used for NOTIFY and BROADCAST.
+ */
+struct send_prim {
+	u8     phy_id;
+	u8     wait_transmit; 	  /* :0,0 */
+	u8     xmit_flags;
+#define XMTPSIZE_MASK      0xF0
+#define XMTPSIZE_SINGLE    0x10
+#define XMTPSIZE_REPEATED  0x20
+#define XMTPSIZE_CONT      0x20
+#define XMTPSIZE_TRIPLE    0x30
+#define XMTPSIZE_REDUNDANT 0x60
+#define XMTPSIZE_INF       0
+
+#define XMTCONTEN          0x04
+#define XMTPFRM            0x02	  /* Transmit at the next frame boundary */
+#define XMTPIMM            0x01	  /* Transmit immediately */
+
+	__le16 _r_a;
+	u8     prim[4];		  /* K, D0, D1, D2 */
+	u8     _r_b[50];
+	__le16 conn_handle;
+	u8     _r_c[56];
+} __attribute__ ((packed));
+
+/* This describes both SSP Target Get Data and SSP Target Get Data And
+ * Send Good Response SCBs.  Used when the sequencer is operating in
+ * target mode...
+ */
+struct ssp_targ_get_data {
+	u8     proto_conn_rate;
+	__le32 total_xfer_len;
+	struct ssp_frame_hdr ssp_frame;
+	struct xfer_rdy_iu  xfer_rdy;
+	u8     lun[LUN_SIZE];
+	__le64 _r_a;
+	__le16 sister_scb;
+	__le16 conn_handle;
+	u8     data_dir;	  /* 01b */
+	u8     _r_b;
+	u8     retry_count;
+	u8     _r_c[5];
+	struct sg_el sg_element[3];
+} __attribute__ ((packed));
+
+/* ---------- The actual SCB struct ---------- */
+
+struct scb {
+	struct scb_header header;
+	union {
+		struct initiate_ssp_task ssp_task;
+		struct initiate_ata_task ata_task;
+		struct initiate_smp_task smp_task;
+		struct control_phy       control_phy;
+		struct control_ata_dev   control_ata_dev;
+		struct empty_scb         escb;
+		struct initiate_link_adm link_adm;
+		struct copy_memory       cp_mem;
+		struct abort_task        abort_task;
+		struct clear_nexus       clear_nexus;
+		struct initiate_ssp_tmf  ssp_tmf;
+	};
+} __attribute__ ((packed));
+
+/* ---------- Done List ---------- */
+/* The done list entry opcode field is defined below.
+ * The mnemonic encoding and meaning is as follows:
+ * TC - Task Complete, status was received and acknowledged
+ * TF - Task Failed, indicates an error prior to receiving acknowledgment
+ *   for the command:
+ *   - no conn,
+ *   - NACK or R_ERR received in response to this command,
+ *   - credit blocked or not available, or in the case of SMP request,
+ *   - no SMP response was received.
+ *   In these four cases it is known that the target didn't receive the
+ *   command.
+ * TI - Task Interrupted, error after the command was acknowledged.  It is
+ *   known that the command was received by the target.
+ * TU - Task Unacked, command was transmitted but neither ACK (R_OK) nor NAK
+ *   (R_ERR) was received due to loss of signal, broken connection, loss of
+ *   dword sync or other reason.  The application client should send the
+ *   appropriate task query.
+ * TA - Task Aborted, see TF.
+ * _RESP - The completion includes an empty buffer containing status.
+ * TO - Timeout.
+ */
+#define TC_NO_ERROR             0x00
+#define TC_UNDERRUN             0x01
+#define TC_OVERRUN              0x02
+#define TF_OPEN_TO              0x03
+#define TF_OPEN_REJECT          0x04
+#define TI_BREAK                0x05
+#define TI_PROTO_ERR            0x06
+#define TC_SSP_RESP             0x07
+#define TI_PHY_DOWN             0x08
+#define TF_PHY_DOWN             0x09
+#define TC_LINK_ADM_RESP        0x0a
+#define TC_CSMI                 0x0b
+#define TC_ATA_RESP             0x0c
+#define TU_PHY_DOWN             0x0d
+#define TU_BREAK                0x0e
+#define TI_SATA_TO              0x0f
+#define TI_NAK                  0x10
+#define TC_CONTROL_PHY          0x11
+#define TF_BREAK                0x12
+#define TC_RESUME               0x13
+#define TI_ACK_NAK_TO           0x14
+#define TF_SMPRSP_TO            0x15
+#define TF_SMP_XMIT_RCV_ERR     0x16
+#define TC_PARTIAL_SG_LIST      0x17
+#define TU_ACK_NAK_TO           0x18
+#define TU_SATA_TO              0x19
+#define TF_NAK_RECV             0x1a
+#define TA_I_T_NEXUS_LOSS       0x1b
+#define TC_ATA_R_ERR_RECV       0x1c
+#define TF_TMF_NO_CTX           0x1d
+#define TA_ON_REQ               0x1e
+#define TF_TMF_NO_TAG           0x1f
+#define TF_TMF_TAG_FREE         0x20
+#define TF_TMF_TASK_DONE        0x21
+#define TF_TMF_NO_CONN_HANDLE   0x22
+#define TC_TASK_CLEARED         0x23
+#define TI_SYNCS_RECV           0x24
+#define TU_SYNCS_RECV           0x25
+#define TF_IRTT_TO              0x26
+#define TF_NO_SMP_CONN          0x27
+#define TF_IU_SHORT             0x28
+#define TF_DATA_OFFS_ERR        0x29
+#define TF_INV_CONN_HANDLE      0x2a
+#define TF_REQUESTED_N_PENDING  0x2b
+
+/* 0xc1 - 0xc7: empty buffer received,
+   0xd1 - 0xd7: establish nexus empty buffer received
+*/
+/* This is the ESCB mask */
+#define ESCB_RECVD              0xC0
+
+
+/* This struct done_list_struct defines the done list entry.
+ * All fields are LE.
+ */
+struct done_list_struct {
+	__le16 index;		  /* aka transaction context */
+	u8     opcode;
+	u8     status_block[4];
+	u8     toggle;		  /* bit 0 */
+#define DL_TOGGLE_MASK     0x01
+} __attribute__ ((packed));
+
+/* ---------- PHYS ---------- */
+
+struct asd_phy {
+	struct asd_sas_phy        sas_phy;
+	struct asd_phy_desc   *phy_desc; /* hw profile */
+
+	struct sas_identify_frame *identify_frame;
+	struct asd_dma_tok  *id_frm_tok;
+
+	u8         frame_rcvd[ASD_EDB_SIZE];
+};
+
+
+#define ASD_SCB_SIZE sizeof(struct scb)
+#define ASD_DDB_SIZE sizeof(struct asd_ddb_ssp_smp_target_port)
+
+/* Define this to 0 if you do not want NOTIFY (ENABLE SPINIP) sent.
+ * Default: 0x10 (it's a mask)
+ */
+#define ASD_NOTIFY_ENABLE_SPINUP  0x10
+
+/* If enabled, set this to the interval between transmission
+ * of NOTIFY (ENABLE SPINUP). In units of 200 us.
+ */
+#define ASD_NOTIFY_TIMEOUT        2500
+
+/* Initial delay after OOB, before we transmit NOTIFY (ENABLE SPINUP).
+ * If 0, transmit immediately. In milliseconds.
+ */
+#define ASD_NOTIFY_DOWN_COUNT     0
+
+/* Device present timer timeout constant, 10 ms. */
+#define ASD_DEV_PRESENT_TIMEOUT   0x2710
+
+#define ASD_SATA_INTERLOCK_TIMEOUT 0
+
+/* How long to wait before shutting down an STP connection, unless
+ * an STP target sent frame(s). 50 usec.
+ * IGNORED by the sequencer (i.e. value 0 always).
+ */
+#define ASD_STP_SHUTDOWN_TIMEOUT  0x0
+
+/* ATA soft reset timer timeout. 5 usec. */
+#define ASD_SRST_ASSERT_TIMEOUT   0x05
+
+/* 31 sec */
+#define ASD_RCV_FIS_TIMEOUT       0x01D905C0
+
+#define ASD_ONE_MILLISEC_TIMEOUT  0x03e8
+
+/* COMINIT timer */
+#define ASD_TEN_MILLISEC_TIMEOUT  0x2710
+#define ASD_COMINIT_TIMEOUT ASD_TEN_MILLISEC_TIMEOUT
+
+/* 1 sec */
+#define ASD_SMP_RCV_TIMEOUT       0x000F4240
+
+#endif

drivers/scsi/aic94xx/aic94xx_scb.c

@@ -0,0 +1,758 @@
+/*
+ * Aic94xx SAS/SATA driver SCB management.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/pci.h>
+
+#include "aic94xx.h"
+#include "aic94xx_reg.h"
+#include "aic94xx_hwi.h"
+#include "aic94xx_seq.h"
+
+#include "aic94xx_dump.h"
+
+/* ---------- EMPTY SCB ---------- */
+
+#define DL_PHY_MASK      7
+#define BYTES_DMAED      0
+#define PRIMITIVE_RECVD  0x08
+#define PHY_EVENT        0x10
+#define LINK_RESET_ERROR 0x18
+#define TIMER_EVENT      0x20
+#define REQ_TASK_ABORT   0xF0
+#define REQ_DEVICE_RESET 0xF1
+#define SIGNAL_NCQ_ERROR 0xF2
+#define CLEAR_NCQ_ERROR  0xF3
+
+#define PHY_EVENTS_STATUS (CURRENT_LOSS_OF_SIGNAL | CURRENT_OOB_DONE   \
+			   | CURRENT_SPINUP_HOLD | CURRENT_GTO_TIMEOUT \
+			   | CURRENT_OOB_ERROR)
+
+static inline void get_lrate_mode(struct asd_phy *phy, u8 oob_mode)
+{
+	struct sas_phy *sas_phy = phy->sas_phy.phy;
+
+	switch (oob_mode & 7) {
+	case PHY_SPEED_60:
+		/* FIXME: sas transport class doesn't have this */
+		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
+		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
+		break;
+	case PHY_SPEED_30:
+		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
+		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
+		break;
+	case PHY_SPEED_15:
+		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
+		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
+		break;
+	}
+	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
+	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_3_0_GBPS;
+	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
+	sas_phy->maximum_linkrate = phy->phy_desc->max_sas_lrate;
+	sas_phy->minimum_linkrate = phy->phy_desc->min_sas_lrate;
+
+	if (oob_mode & SAS_MODE)
+		phy->sas_phy.oob_mode = SAS_OOB_MODE;
+	else if (oob_mode & SATA_MODE)
+		phy->sas_phy.oob_mode = SATA_OOB_MODE;
+}
+
+static inline void asd_phy_event_tasklet(struct asd_ascb *ascb,
+					 struct done_list_struct *dl)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
+	int phy_id = dl->status_block[0] & DL_PHY_MASK;
+	struct asd_phy *phy = &asd_ha->phys[phy_id];
+
+	u8 oob_status = dl->status_block[1] & PHY_EVENTS_STATUS;
+	u8 oob_mode   = dl->status_block[2];
+
+	switch (oob_status) {
+	case CURRENT_LOSS_OF_SIGNAL:
+		/* directly attached device was removed */
+		ASD_DPRINTK("phy%d: device unplugged\n", phy_id);
+		asd_turn_led(asd_ha, phy_id, 0);
+		sas_phy_disconnected(&phy->sas_phy);
+		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
+		break;
+	case CURRENT_OOB_DONE:
+		/* hot plugged device */
+		asd_turn_led(asd_ha, phy_id, 1);
+		get_lrate_mode(phy, oob_mode);
+		ASD_DPRINTK("phy%d device plugged: lrate:0x%x, proto:0x%x\n",
+			    phy_id, phy->sas_phy.linkrate, phy->sas_phy.iproto);
+		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
+		break;
+	case CURRENT_SPINUP_HOLD:
+		/* hot plug SATA, no COMWAKE sent */
+		asd_turn_led(asd_ha, phy_id, 1);
+		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
+		break;
+	case CURRENT_GTO_TIMEOUT:
+	case CURRENT_OOB_ERROR:
+		ASD_DPRINTK("phy%d error while OOB: oob status:0x%x\n", phy_id,
+			    dl->status_block[1]);
+		asd_turn_led(asd_ha, phy_id, 0);
+		sas_phy_disconnected(&phy->sas_phy);
+		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
+		break;
+	}
+}
+
+/* If phys are enabled sparsely, this will do the right thing. */
+static inline unsigned ord_phy(struct asd_ha_struct *asd_ha,
+			       struct asd_phy *phy)
+{
+	u8 enabled_mask = asd_ha->hw_prof.enabled_phys;
+	int i, k = 0;
+
+	for_each_phy(enabled_mask, enabled_mask, i) {
+		if (&asd_ha->phys[i] == phy)
+			return k;
+		k++;
+	}
+	return 0;
+}
+
+/**
+ * asd_get_attached_sas_addr -- extract/generate attached SAS address
+ * phy: pointer to asd_phy
+ * sas_addr: pointer to buffer where the SAS address is to be written
+ *
+ * This function extracts the SAS address from an IDENTIFY frame
+ * received.  If OOB is SATA, then a SAS address is generated from the
+ * HA tables.
+ *
+ * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
+ * buffer.
+ */
+static inline void asd_get_attached_sas_addr(struct asd_phy *phy, u8 *sas_addr)
+{
+	if (phy->sas_phy.frame_rcvd[0] == 0x34
+	    && phy->sas_phy.oob_mode == SATA_OOB_MODE) {
+		struct asd_ha_struct *asd_ha = phy->sas_phy.ha->lldd_ha;
+		/* FIS device-to-host */
+		u64 addr = be64_to_cpu(*(__be64 *)phy->phy_desc->sas_addr);
+
+		addr += asd_ha->hw_prof.sata_name_base + ord_phy(asd_ha, phy);
+		*(__be64 *)sas_addr = cpu_to_be64(addr);
+	} else {
+		struct sas_identify_frame *idframe =
+			(void *) phy->sas_phy.frame_rcvd;
+		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
+	}
+}
+
+static inline void asd_bytes_dmaed_tasklet(struct asd_ascb *ascb,
+					   struct done_list_struct *dl,
+					   int edb_id, int phy_id)
+{
+	unsigned long flags;
+	int edb_el = edb_id + ascb->edb_index;
+	struct asd_dma_tok *edb = ascb->ha->seq.edb_arr[edb_el];
+	struct asd_phy *phy = &ascb->ha->phys[phy_id];
+	struct sas_ha_struct *sas_ha = phy->sas_phy.ha;
+	u16 size = ((dl->status_block[3] & 7) << 8) | dl->status_block[2];
+
+	size = min(size, (u16) sizeof(phy->frame_rcvd));
+
+	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
+	memcpy(phy->sas_phy.frame_rcvd, edb->vaddr, size);
+	phy->sas_phy.frame_rcvd_size = size;
+	asd_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
+	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
+	asd_dump_frame_rcvd(phy, dl);
+	sas_ha->notify_port_event(&phy->sas_phy, PORTE_BYTES_DMAED);
+}
+
+static inline void asd_link_reset_err_tasklet(struct asd_ascb *ascb,
+					      struct done_list_struct *dl,
+					      int phy_id)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
+	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+	u8 lr_error = dl->status_block[1];
+	u8 retries_left = dl->status_block[2];
+
+	switch (lr_error) {
+	case 0:
+		ASD_DPRINTK("phy%d: Receive ID timer expired\n", phy_id);
+		break;
+	case 1:
+		ASD_DPRINTK("phy%d: Loss of signal\n", phy_id);
+		break;
+	case 2:
+		ASD_DPRINTK("phy%d: Loss of dword sync\n", phy_id);
+		break;
+	case 3:
+		ASD_DPRINTK("phy%d: Receive FIS timeout\n", phy_id);
+		break;
+	default:
+		ASD_DPRINTK("phy%d: unknown link reset error code: 0x%x\n",
+			    phy_id, lr_error);
+		break;
+	}
+
+	asd_turn_led(asd_ha, phy_id, 0);
+	sas_phy_disconnected(sas_phy);
+	sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
+
+	if (retries_left == 0) {
+		int num = 1;
+		struct asd_ascb *cp = asd_ascb_alloc_list(ascb->ha, &num,
+							  GFP_ATOMIC);
+		if (!cp) {
+			asd_printk("%s: out of memory\n", __FUNCTION__);
+			goto out;
+		}
+		ASD_DPRINTK("phy%d: retries:0 performing link reset seq\n",
+			    phy_id);
+		asd_build_control_phy(cp, phy_id, ENABLE_PHY);
+		if (asd_post_ascb_list(ascb->ha, cp, 1) != 0)
+			asd_ascb_free(cp);
+	}
+out:
+	;
+}
+
+static inline void asd_primitive_rcvd_tasklet(struct asd_ascb *ascb,
+					      struct done_list_struct *dl,
+					      int phy_id)
+{
+	unsigned long flags;
+	struct sas_ha_struct *sas_ha = &ascb->ha->sas_ha;
+	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+	u8  reg  = dl->status_block[1];
+	u32 cont = dl->status_block[2] << ((reg & 3)*8);
+
+	reg &= ~3;
+	switch (reg) {
+	case LmPRMSTAT0BYTE0:
+		switch (cont) {
+		case LmBROADCH:
+		case LmBROADRVCH0:
+		case LmBROADRVCH1:
+		case LmBROADSES:
+			ASD_DPRINTK("phy%d: BROADCAST change received:%d\n",
+				    phy_id, cont);
+			spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
+			sas_phy->sas_prim = ffs(cont);
+			spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
+			sas_ha->notify_port_event(sas_phy,PORTE_BROADCAST_RCVD);
+			break;
+
+		case LmUNKNOWNP:
+			ASD_DPRINTK("phy%d: unknown BREAK\n", phy_id);
+			break;
+
+		default:
+			ASD_DPRINTK("phy%d: primitive reg:0x%x, cont:0x%04x\n",
+				    phy_id, reg, cont);
+			break;
+		}
+		break;
+	case LmPRMSTAT1BYTE0:
+		switch (cont) {
+		case LmHARDRST:
+			ASD_DPRINTK("phy%d: HARD_RESET primitive rcvd\n",
+				    phy_id);
+			/* The sequencer disables all phys on that port.
+			 * We have to re-enable the phys ourselves. */
+			sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
+			break;
+
+		default:
+			ASD_DPRINTK("phy%d: primitive reg:0x%x, cont:0x%04x\n",
+				    phy_id, reg, cont);
+			break;
+		}
+		break;
+	default:
+		ASD_DPRINTK("unknown primitive register:0x%x\n",
+			    dl->status_block[1]);
+		break;
+	}
+}
+
+/**
+ * asd_invalidate_edb -- invalidate an EDB and if necessary post the ESCB
+ * @ascb: pointer to Empty SCB
+ * @edb_id: index [0,6] to the empty data buffer which is to be invalidated
+ *
+ * After an EDB has been invalidated, if all EDBs in this ESCB have been
+ * invalidated, the ESCB is posted back to the sequencer.
+ * Context is tasklet/IRQ.
+ */
+void asd_invalidate_edb(struct asd_ascb *ascb, int edb_id)
+{
+	struct asd_seq_data *seq = &ascb->ha->seq;
+	struct empty_scb *escb = &ascb->scb->escb;
+	struct sg_el     *eb   = &escb->eb[edb_id];
+	struct asd_dma_tok *edb = seq->edb_arr[ascb->edb_index + edb_id];
+
+	memset(edb->vaddr, 0, ASD_EDB_SIZE);
+	eb->flags |= ELEMENT_NOT_VALID;
+	escb->num_valid--;
+
+	if (escb->num_valid == 0) {
+		int i;
+		/* ASD_DPRINTK("reposting escb: vaddr: 0x%p, "
+			    "dma_handle: 0x%08llx, next: 0x%08llx, "
+			    "index:%d, opcode:0x%02x\n",
+			    ascb->dma_scb.vaddr,
+			    (u64)ascb->dma_scb.dma_handle,
+			    le64_to_cpu(ascb->scb->header.next_scb),
+			    le16_to_cpu(ascb->scb->header.index),
+			    ascb->scb->header.opcode);
+		*/
+		escb->num_valid = ASD_EDBS_PER_SCB;
+		for (i = 0; i < ASD_EDBS_PER_SCB; i++)
+			escb->eb[i].flags = 0;
+		if (!list_empty(&ascb->list))
+			list_del_init(&ascb->list);
+		i = asd_post_escb_list(ascb->ha, ascb, 1);
+		if (i)
+			asd_printk("couldn't post escb, err:%d\n", i);
+	}
+}
+
+static void escb_tasklet_complete(struct asd_ascb *ascb,
+				  struct done_list_struct *dl)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_ha_struct *sas_ha = &asd_ha->sas_ha;
+	int edb = (dl->opcode & DL_PHY_MASK) - 1; /* [0xc1,0xc7] -> [0,6] */
+	u8  sb_opcode = dl->status_block[0];
+	int phy_id = sb_opcode & DL_PHY_MASK;
+	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
+
+	if (edb > 6 || edb < 0) {
+		ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
+			    edb, dl->opcode);
+		ASD_DPRINTK("sb_opcode : 0x%x, phy_id: 0x%x\n",
+			    sb_opcode, phy_id);
+		ASD_DPRINTK("escb: vaddr: 0x%p, "
+			    "dma_handle: 0x%llx, next: 0x%llx, "
+			    "index:%d, opcode:0x%02x\n",
+			    ascb->dma_scb.vaddr,
+			    (unsigned long long)ascb->dma_scb.dma_handle,
+			    (unsigned long long)
+			    le64_to_cpu(ascb->scb->header.next_scb),
+			    le16_to_cpu(ascb->scb->header.index),
+			    ascb->scb->header.opcode);
+	}
+
+	sb_opcode &= ~DL_PHY_MASK;
+
+	switch (sb_opcode) {
+	case BYTES_DMAED:
+		ASD_DPRINTK("%s: phy%d: BYTES_DMAED\n", __FUNCTION__, phy_id);
+		asd_bytes_dmaed_tasklet(ascb, dl, edb, phy_id);
+		break;
+	case PRIMITIVE_RECVD:
+		ASD_DPRINTK("%s: phy%d: PRIMITIVE_RECVD\n", __FUNCTION__,
+			    phy_id);
+		asd_primitive_rcvd_tasklet(ascb, dl, phy_id);
+		break;
+	case PHY_EVENT:
+		ASD_DPRINTK("%s: phy%d: PHY_EVENT\n", __FUNCTION__, phy_id);
+		asd_phy_event_tasklet(ascb, dl);
+		break;
+	case LINK_RESET_ERROR:
+		ASD_DPRINTK("%s: phy%d: LINK_RESET_ERROR\n", __FUNCTION__,
+			    phy_id);
+		asd_link_reset_err_tasklet(ascb, dl, phy_id);
+		break;
+	case TIMER_EVENT:
+		ASD_DPRINTK("%s: phy%d: TIMER_EVENT, lost dw sync\n",
+			    __FUNCTION__, phy_id);
+		asd_turn_led(asd_ha, phy_id, 0);
+		/* the device is gone */
+		sas_phy_disconnected(sas_phy);
+		sas_ha->notify_port_event(sas_phy, PORTE_TIMER_EVENT);
+		break;
+	case REQ_TASK_ABORT:
+		ASD_DPRINTK("%s: phy%d: REQ_TASK_ABORT\n", __FUNCTION__,
+			    phy_id);
+		break;
+	case REQ_DEVICE_RESET:
+		ASD_DPRINTK("%s: phy%d: REQ_DEVICE_RESET\n", __FUNCTION__,
+			    phy_id);
+		break;
+	case SIGNAL_NCQ_ERROR:
+		ASD_DPRINTK("%s: phy%d: SIGNAL_NCQ_ERROR\n", __FUNCTION__,
+			    phy_id);
+		break;
+	case CLEAR_NCQ_ERROR:
+		ASD_DPRINTK("%s: phy%d: CLEAR_NCQ_ERROR\n", __FUNCTION__,
+			    phy_id);
+		break;
+	default:
+		ASD_DPRINTK("%s: phy%d: unknown event:0x%x\n", __FUNCTION__,
+			    phy_id, sb_opcode);
+		ASD_DPRINTK("edb is 0x%x! dl->opcode is 0x%x\n",
+			    edb, dl->opcode);
+		ASD_DPRINTK("sb_opcode : 0x%x, phy_id: 0x%x\n",
+			    sb_opcode, phy_id);
+		ASD_DPRINTK("escb: vaddr: 0x%p, "
+			    "dma_handle: 0x%llx, next: 0x%llx, "
+			    "index:%d, opcode:0x%02x\n",
+			    ascb->dma_scb.vaddr,
+			    (unsigned long long)ascb->dma_scb.dma_handle,
+			    (unsigned long long)
+			    le64_to_cpu(ascb->scb->header.next_scb),
+			    le16_to_cpu(ascb->scb->header.index),
+			    ascb->scb->header.opcode);
+
+		break;
+	}
+
+	asd_invalidate_edb(ascb, edb);
+}
+
+int asd_init_post_escbs(struct asd_ha_struct *asd_ha)
+{
+	struct asd_seq_data *seq = &asd_ha->seq;
+	int i;
+
+	for (i = 0; i < seq->num_escbs; i++)
+		seq->escb_arr[i]->tasklet_complete = escb_tasklet_complete;
+
+	ASD_DPRINTK("posting %d escbs\n", i);
+	return asd_post_escb_list(asd_ha, seq->escb_arr[0], seq->num_escbs);
+}
+
+/* ---------- CONTROL PHY ---------- */
+
+#define CONTROL_PHY_STATUS (CURRENT_DEVICE_PRESENT | CURRENT_OOB_DONE   \
+			    | CURRENT_SPINUP_HOLD | CURRENT_GTO_TIMEOUT \
+			    | CURRENT_OOB_ERROR)
+
+/**
+ * control_phy_tasklet_complete -- tasklet complete for CONTROL PHY ascb
+ * @ascb: pointer to an ascb
+ * @dl: pointer to the done list entry
+ *
+ * This function completes a CONTROL PHY scb and frees the ascb.
+ * A note on LEDs:
+ *  - an LED blinks if there is IO though it,
+ *  - if a device is connected to the LED, it is lit,
+ *  - if no device is connected to the LED, is is dimmed (off).
+ */
+static void control_phy_tasklet_complete(struct asd_ascb *ascb,
+					 struct done_list_struct *dl)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct scb *scb = ascb->scb;
+	struct control_phy *control_phy = &scb->control_phy;
+	u8 phy_id = control_phy->phy_id;
+	struct asd_phy *phy = &ascb->ha->phys[phy_id];
+
+	u8 status     = dl->status_block[0];
+	u8 oob_status = dl->status_block[1];
+	u8 oob_mode   = dl->status_block[2];
+	/* u8 oob_signals= dl->status_block[3]; */
+
+	if (status != 0) {
+		ASD_DPRINTK("%s: phy%d status block opcode:0x%x\n",
+			    __FUNCTION__, phy_id, status);
+		goto out;
+	}
+
+	switch (control_phy->sub_func) {
+	case DISABLE_PHY:
+		asd_ha->hw_prof.enabled_phys &= ~(1 << phy_id);
+		asd_turn_led(asd_ha, phy_id, 0);
+		asd_control_led(asd_ha, phy_id, 0);
+		ASD_DPRINTK("%s: disable phy%d\n", __FUNCTION__, phy_id);
+		break;
+
+	case ENABLE_PHY:
+		asd_control_led(asd_ha, phy_id, 1);
+		if (oob_status & CURRENT_OOB_DONE) {
+			asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
+			get_lrate_mode(phy, oob_mode);
+			asd_turn_led(asd_ha, phy_id, 1);
+			ASD_DPRINTK("%s: phy%d, lrate:0x%x, proto:0x%x\n",
+				    __FUNCTION__, phy_id,phy->sas_phy.linkrate,
+				    phy->sas_phy.iproto);
+		} else if (oob_status & CURRENT_SPINUP_HOLD) {
+			asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
+			asd_turn_led(asd_ha, phy_id, 1);
+			ASD_DPRINTK("%s: phy%d, spinup hold\n", __FUNCTION__,
+				    phy_id);
+		} else if (oob_status & CURRENT_ERR_MASK) {
+			asd_turn_led(asd_ha, phy_id, 0);
+			ASD_DPRINTK("%s: phy%d: error: oob status:0x%02x\n",
+				    __FUNCTION__, phy_id, oob_status);
+		} else if (oob_status & (CURRENT_HOT_PLUG_CNCT
+					 | CURRENT_DEVICE_PRESENT))  {
+			asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
+			asd_turn_led(asd_ha, phy_id, 1);
+			ASD_DPRINTK("%s: phy%d: hot plug or device present\n",
+				    __FUNCTION__, phy_id);
+		} else {
+			asd_ha->hw_prof.enabled_phys |= (1 << phy_id);
+			asd_turn_led(asd_ha, phy_id, 0);
+			ASD_DPRINTK("%s: phy%d: no device present: "
+				    "oob_status:0x%x\n",
+				    __FUNCTION__, phy_id, oob_status);
+		}
+		break;
+	case RELEASE_SPINUP_HOLD:
+	case PHY_NO_OP:
+	case EXECUTE_HARD_RESET:
+		ASD_DPRINTK("%s: phy%d: sub_func:0x%x\n", __FUNCTION__,
+			    phy_id, control_phy->sub_func);
+		/* XXX finish */
+		break;
+	default:
+		ASD_DPRINTK("%s: phy%d: sub_func:0x%x?\n", __FUNCTION__,
+			    phy_id, control_phy->sub_func);
+		break;
+	}
+out:
+	asd_ascb_free(ascb);
+}
+
+static inline void set_speed_mask(u8 *speed_mask, struct asd_phy_desc *pd)
+{
+	/* disable all speeds, then enable defaults */
+	*speed_mask = SAS_SPEED_60_DIS | SAS_SPEED_30_DIS | SAS_SPEED_15_DIS
+		| SATA_SPEED_30_DIS | SATA_SPEED_15_DIS;
+
+	switch (pd->max_sas_lrate) {
+	case SAS_LINK_RATE_6_0_GBPS:
+		*speed_mask &= ~SAS_SPEED_60_DIS;
+	default:
+	case SAS_LINK_RATE_3_0_GBPS:
+		*speed_mask &= ~SAS_SPEED_30_DIS;
+	case SAS_LINK_RATE_1_5_GBPS:
+		*speed_mask &= ~SAS_SPEED_15_DIS;
+	}
+
+	switch (pd->min_sas_lrate) {
+	case SAS_LINK_RATE_6_0_GBPS:
+		*speed_mask |= SAS_SPEED_30_DIS;
+	case SAS_LINK_RATE_3_0_GBPS:
+		*speed_mask |= SAS_SPEED_15_DIS;
+	default:
+	case SAS_LINK_RATE_1_5_GBPS:
+		/* nothing to do */
+		;
+	}
+
+	switch (pd->max_sata_lrate) {
+	case SAS_LINK_RATE_3_0_GBPS:
+		*speed_mask &= ~SATA_SPEED_30_DIS;
+	default:
+	case SAS_LINK_RATE_1_5_GBPS:
+		*speed_mask &= ~SATA_SPEED_15_DIS;
+	}
+
+	switch (pd->min_sata_lrate) {
+	case SAS_LINK_RATE_3_0_GBPS:
+		*speed_mask |= SATA_SPEED_15_DIS;
+	default:
+	case SAS_LINK_RATE_1_5_GBPS:
+		/* nothing to do */
+		;
+	}
+}
+
+/**
+ * asd_build_control_phy -- build a CONTROL PHY SCB
+ * @ascb: pointer to an ascb
+ * @phy_id: phy id to control, integer
+ * @subfunc: subfunction, what to actually to do the phy
+ *
+ * This function builds a CONTROL PHY scb.  No allocation of any kind
+ * is performed. @ascb is allocated with the list function.
+ * The caller can override the ascb->tasklet_complete to point
+ * to its own callback function.  It must call asd_ascb_free()
+ * at its tasklet complete function.
+ * See the default implementation.
+ */
+void asd_build_control_phy(struct asd_ascb *ascb, int phy_id, u8 subfunc)
+{
+	struct asd_phy *phy = &ascb->ha->phys[phy_id];
+	struct scb *scb = ascb->scb;
+	struct control_phy *control_phy = &scb->control_phy;
+
+	scb->header.opcode = CONTROL_PHY;
+	control_phy->phy_id = (u8) phy_id;
+	control_phy->sub_func = subfunc;
+
+	switch (subfunc) {
+	case EXECUTE_HARD_RESET:  /* 0x81 */
+	case ENABLE_PHY:          /* 0x01 */
+		/* decide hot plug delay */
+		control_phy->hot_plug_delay = HOTPLUG_DELAY_TIMEOUT;
+
+		/* decide speed mask */
+		set_speed_mask(&control_phy->speed_mask, phy->phy_desc);
+
+		/* initiator port settings are in the hi nibble */
+		if (phy->sas_phy.role == PHY_ROLE_INITIATOR)
+			control_phy->port_type = SAS_PROTO_ALL << 4;
+		else if (phy->sas_phy.role == PHY_ROLE_TARGET)
+			control_phy->port_type = SAS_PROTO_ALL;
+		else
+			control_phy->port_type =
+				(SAS_PROTO_ALL << 4) | SAS_PROTO_ALL;
+
+		/* link reset retries, this should be nominal */
+		control_phy->link_reset_retries = 10;
+
+	case RELEASE_SPINUP_HOLD: /* 0x02 */
+		/* decide the func_mask */
+		control_phy->func_mask = FUNCTION_MASK_DEFAULT;
+		if (phy->phy_desc->flags & ASD_SATA_SPINUP_HOLD)
+			control_phy->func_mask &= ~SPINUP_HOLD_DIS;
+		else
+			control_phy->func_mask |= SPINUP_HOLD_DIS;
+	}
+
+	control_phy->conn_handle = cpu_to_le16(0xFFFF);
+
+	ascb->tasklet_complete = control_phy_tasklet_complete;
+}
+
+/* ---------- INITIATE LINK ADM TASK ---------- */
+
+static void link_adm_tasklet_complete(struct asd_ascb *ascb,
+				      struct done_list_struct *dl)
+{
+	u8 opcode = dl->opcode;
+	struct initiate_link_adm *link_adm = &ascb->scb->link_adm;
+	u8 phy_id = link_adm->phy_id;
+
+	if (opcode != TC_NO_ERROR) {
+		asd_printk("phy%d: link adm task 0x%x completed with error "
+			   "0x%x\n", phy_id, link_adm->sub_func, opcode);
+	}
+	ASD_DPRINTK("phy%d: link adm task 0x%x: 0x%x\n",
+		    phy_id, link_adm->sub_func, opcode);
+
+	asd_ascb_free(ascb);
+}
+
+void asd_build_initiate_link_adm_task(struct asd_ascb *ascb, int phy_id,
+				      u8 subfunc)
+{
+	struct scb *scb = ascb->scb;
+	struct initiate_link_adm *link_adm = &scb->link_adm;
+
+	scb->header.opcode = INITIATE_LINK_ADM_TASK;
+
+	link_adm->phy_id = phy_id;
+	link_adm->sub_func = subfunc;
+	link_adm->conn_handle = cpu_to_le16(0xFFFF);
+
+	ascb->tasklet_complete = link_adm_tasklet_complete;
+}
+
+/* ---------- SCB timer ---------- */
+
+/**
+ * asd_ascb_timedout -- called when a pending SCB's timer has expired
+ * @data: unsigned long, a pointer to the ascb in question
+ *
+ * This is the default timeout function which does the most necessary.
+ * Upper layers can implement their own timeout function, say to free
+ * resources they have with this SCB, and then call this one at the
+ * end of their timeout function.  To do this, one should initialize
+ * the ascb->timer.{function, data, expires} prior to calling the post
+ * funcion.  The timer is started by the post function.
+ */
+void asd_ascb_timedout(unsigned long data)
+{
+	struct asd_ascb *ascb = (void *) data;
+	struct asd_seq_data *seq = &ascb->ha->seq;
+	unsigned long flags;
+
+	ASD_DPRINTK("scb:0x%x timed out\n", ascb->scb->header.opcode);
+
+	spin_lock_irqsave(&seq->pend_q_lock, flags);
+	seq->pending--;
+	list_del_init(&ascb->list);
+	spin_unlock_irqrestore(&seq->pend_q_lock, flags);
+
+	asd_ascb_free(ascb);
+}
+
+/* ---------- CONTROL PHY ---------- */
+
+/* Given the spec value, return a driver value. */
+static const int phy_func_table[] = {
+	[PHY_FUNC_NOP]        = PHY_NO_OP,
+	[PHY_FUNC_LINK_RESET] = ENABLE_PHY,
+	[PHY_FUNC_HARD_RESET] = EXECUTE_HARD_RESET,
+	[PHY_FUNC_DISABLE]    = DISABLE_PHY,
+	[PHY_FUNC_RELEASE_SPINUP_HOLD] = RELEASE_SPINUP_HOLD,
+};
+
+int asd_control_phy(struct asd_sas_phy *phy, enum phy_func func, void *arg)
+{
+	struct asd_ha_struct *asd_ha = phy->ha->lldd_ha;
+	struct asd_phy_desc *pd = asd_ha->phys[phy->id].phy_desc;
+	struct asd_ascb *ascb;
+	struct sas_phy_linkrates *rates;
+	int res = 1;
+
+	switch (func) {
+	case PHY_FUNC_CLEAR_ERROR_LOG:
+		return -ENOSYS;
+	case PHY_FUNC_SET_LINK_RATE:
+		rates = arg;
+		if (rates->minimum_linkrate) {
+			pd->min_sas_lrate = rates->minimum_linkrate;
+			pd->min_sata_lrate = rates->minimum_linkrate;
+		}
+		if (rates->maximum_linkrate) {
+			pd->max_sas_lrate = rates->maximum_linkrate;
+			pd->max_sata_lrate = rates->maximum_linkrate;
+		}
+		func = PHY_FUNC_LINK_RESET;
+		break;
+	default:
+		break;
+	}
+
+	ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
+	if (!ascb)
+		return -ENOMEM;
+
+	asd_build_control_phy(ascb, phy->id, phy_func_table[func]);
+	res = asd_post_ascb_list(asd_ha, ascb , 1);
+	if (res)
+		asd_ascb_free(ascb);
+
+	return res;
+}

drivers/scsi/aic94xx/aic94xx_seq.h

@@ -0,0 +1,70 @@
+/*
+ * Aic94xx SAS/SATA driver sequencer interface header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#ifndef _AIC94XX_SEQ_H_
+#define _AIC94XX_SEQ_H_
+
+#define CSEQ_NUM_VECS	3
+#define LSEQ_NUM_VECS	11
+
+#define SAS_RAZOR_SEQUENCER_FW_FILE "aic94xx-seq.fw"
+
+/* Note:  All quantites in the sequencer file are little endian */
+struct sequencer_file_header {
+	/* Checksum of the entire contents of the sequencer excluding
+	 * these four bytes */
+	u32	csum;
+	/* numeric major version */
+	u32	major;
+	/* numeric minor version */
+	u32	minor;
+	/* version string printed by driver */
+	char	version[16];
+	u32	cseq_table_offset;
+	u32	cseq_table_size;
+	u32	lseq_table_offset;
+	u32	lseq_table_size;
+	u32	cseq_code_offset;
+	u32	cseq_code_size;
+	u32	lseq_code_offset;
+	u32	lseq_code_size;
+	u16	mode2_task;
+	u16	cseq_idle_loop;
+	u16	lseq_idle_loop;
+} __attribute__((packed));
+
+#ifdef __KERNEL__
+int asd_pause_cseq(struct asd_ha_struct *asd_ha);
+int asd_unpause_cseq(struct asd_ha_struct *asd_ha);
+int asd_pause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask);
+int asd_unpause_lseq(struct asd_ha_struct *asd_ha, u8 lseq_mask);
+int asd_init_seqs(struct asd_ha_struct *asd_ha);
+int asd_start_seqs(struct asd_ha_struct *asd_ha);
+
+void asd_update_port_links(struct asd_sas_phy *phy);
+#endif
+
+#endif

drivers/scsi/aic94xx/aic94xx_task.c

@@ -0,0 +1,642 @@
+/*
+ * Aic94xx SAS/SATA Tasks
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/spinlock.h>
+#include "aic94xx.h"
+#include "aic94xx_sas.h"
+#include "aic94xx_hwi.h"
+
+static void asd_unbuild_ata_ascb(struct asd_ascb *a);
+static void asd_unbuild_smp_ascb(struct asd_ascb *a);
+static void asd_unbuild_ssp_ascb(struct asd_ascb *a);
+
+static inline void asd_can_dequeue(struct asd_ha_struct *asd_ha, int num)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
+	asd_ha->seq.can_queue += num;
+	spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
+}
+
+/* PCI_DMA_... to our direction translation.
+ */
+static const u8 data_dir_flags[] = {
+	[PCI_DMA_BIDIRECTIONAL] = DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
+	[PCI_DMA_TODEVICE]      = DATA_DIR_OUT, /* OUTBOUND */
+	[PCI_DMA_FROMDEVICE]    = DATA_DIR_IN, /* INBOUND */
+	[PCI_DMA_NONE]          = DATA_DIR_NONE, /* NO TRANSFER */
+};
+
+static inline int asd_map_scatterlist(struct sas_task *task,
+				      struct sg_el *sg_arr,
+				      unsigned long gfp_flags)
+{
+	struct asd_ascb *ascb = task->lldd_task;
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct scatterlist *sc;
+	int num_sg, res;
+
+	if (task->data_dir == PCI_DMA_NONE)
+		return 0;
+
+	if (task->num_scatter == 0) {
+		void *p = task->scatter;
+		dma_addr_t dma = pci_map_single(asd_ha->pcidev, p,
+						task->total_xfer_len,
+						task->data_dir);
+		sg_arr[0].bus_addr = cpu_to_le64((u64)dma);
+		sg_arr[0].size = cpu_to_le32(task->total_xfer_len);
+		sg_arr[0].flags |= ASD_SG_EL_LIST_EOL;
+		return 0;
+	}
+
+	num_sg = pci_map_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
+			    task->data_dir);
+	if (num_sg == 0)
+		return -ENOMEM;
+
+	if (num_sg > 3) {
+		int i;
+
+		ascb->sg_arr = asd_alloc_coherent(asd_ha,
+						  num_sg*sizeof(struct sg_el),
+						  gfp_flags);
+		if (!ascb->sg_arr) {
+			res = -ENOMEM;
+			goto err_unmap;
+		}
+		for (sc = task->scatter, i = 0; i < num_sg; i++, sc++) {
+			struct sg_el *sg =
+				&((struct sg_el *)ascb->sg_arr->vaddr)[i];
+			sg->bus_addr = cpu_to_le64((u64)sg_dma_address(sc));
+			sg->size = cpu_to_le32((u32)sg_dma_len(sc));
+			if (i == num_sg-1)
+				sg->flags |= ASD_SG_EL_LIST_EOL;
+		}
+
+		for (sc = task->scatter, i = 0; i < 2; i++, sc++) {
+			sg_arr[i].bus_addr =
+				cpu_to_le64((u64)sg_dma_address(sc));
+			sg_arr[i].size = cpu_to_le32((u32)sg_dma_len(sc));
+		}
+		sg_arr[1].next_sg_offs = 2 * sizeof(*sg_arr);
+		sg_arr[1].flags |= ASD_SG_EL_LIST_EOS;
+
+		memset(&sg_arr[2], 0, sizeof(*sg_arr));
+		sg_arr[2].bus_addr=cpu_to_le64((u64)ascb->sg_arr->dma_handle);
+	} else {
+		int i;
+		for (sc = task->scatter, i = 0; i < num_sg; i++, sc++) {
+			sg_arr[i].bus_addr =
+				cpu_to_le64((u64)sg_dma_address(sc));
+			sg_arr[i].size = cpu_to_le32((u32)sg_dma_len(sc));
+		}
+		sg_arr[i-1].flags |= ASD_SG_EL_LIST_EOL;
+	}
+
+	return 0;
+err_unmap:
+	pci_unmap_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
+		     task->data_dir);
+	return res;
+}
+
+static inline void asd_unmap_scatterlist(struct asd_ascb *ascb)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_task *task = ascb->uldd_task;
+
+	if (task->data_dir == PCI_DMA_NONE)
+		return;
+
+	if (task->num_scatter == 0) {
+		dma_addr_t dma = (dma_addr_t)
+		       le64_to_cpu(ascb->scb->ssp_task.sg_element[0].bus_addr);
+		pci_unmap_single(ascb->ha->pcidev, dma, task->total_xfer_len,
+				 task->data_dir);
+		return;
+	}
+
+	asd_free_coherent(asd_ha, ascb->sg_arr);
+	pci_unmap_sg(asd_ha->pcidev, task->scatter, task->num_scatter,
+		     task->data_dir);
+}
+
+/* ---------- Task complete tasklet ---------- */
+
+static void asd_get_response_tasklet(struct asd_ascb *ascb,
+				     struct done_list_struct *dl)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct sas_task *task = ascb->uldd_task;
+	struct task_status_struct *ts = &task->task_status;
+	unsigned long flags;
+	struct tc_resp_sb_struct {
+		__le16 index_escb;
+		u8     len_lsb;
+		u8     flags;
+	} __attribute__ ((packed)) *resp_sb = (void *) dl->status_block;
+
+/* 	int  size   = ((resp_sb->flags & 7) << 8) | resp_sb->len_lsb; */
+	int  edb_id = ((resp_sb->flags & 0x70) >> 4)-1;
+	struct asd_ascb *escb;
+	struct asd_dma_tok *edb;
+	void *r;
+
+	spin_lock_irqsave(&asd_ha->seq.tc_index_lock, flags);
+	escb = asd_tc_index_find(&asd_ha->seq,
+				 (int)le16_to_cpu(resp_sb->index_escb));
+	spin_unlock_irqrestore(&asd_ha->seq.tc_index_lock, flags);
+
+	if (!escb) {
+		ASD_DPRINTK("Uh-oh! No escb for this dl?!\n");
+		return;
+	}
+
+	ts->buf_valid_size = 0;
+	edb = asd_ha->seq.edb_arr[edb_id + escb->edb_index];
+	r = edb->vaddr;
+	if (task->task_proto == SAS_PROTO_SSP) {
+		struct ssp_response_iu *iu =
+			r + 16 + sizeof(struct ssp_frame_hdr);
+
+		ts->residual = le32_to_cpu(*(__le32 *)r);
+		ts->resp = SAS_TASK_COMPLETE;
+		if (iu->datapres == 0)
+			ts->stat = iu->status;
+		else if (iu->datapres == 1)
+			ts->stat = iu->resp_data[3];
+		else if (iu->datapres == 2) {
+			ts->stat = SAM_CHECK_COND;
+			ts->buf_valid_size = min((u32) SAS_STATUS_BUF_SIZE,
+					 be32_to_cpu(iu->sense_data_len));
+			memcpy(ts->buf, iu->sense_data, ts->buf_valid_size);
+			if (iu->status != SAM_CHECK_COND) {
+				ASD_DPRINTK("device %llx sent sense data, but "
+					    "stat(0x%x) is not CHECK_CONDITION"
+					    "\n",
+					    SAS_ADDR(task->dev->sas_addr),
+					    ts->stat);
+			}
+		}
+	}  else {
+		struct ata_task_resp *resp = (void *) &ts->buf[0];
+
+		ts->residual = le32_to_cpu(*(__le32 *)r);
+
+		if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
+			resp->frame_len = le16_to_cpu(*(__le16 *)(r+6));
+			memcpy(&resp->ending_fis[0], r+16, 24);
+			ts->buf_valid_size = sizeof(*resp);
+		}
+	}
+
+	asd_invalidate_edb(escb, edb_id);
+}
+
+static void asd_task_tasklet_complete(struct asd_ascb *ascb,
+				      struct done_list_struct *dl)
+{
+	struct sas_task *task = ascb->uldd_task;
+	struct task_status_struct *ts = &task->task_status;
+	unsigned long flags;
+	u8 opcode = dl->opcode;
+
+	asd_can_dequeue(ascb->ha, 1);
+
+Again:
+	switch (opcode) {
+	case TC_NO_ERROR:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAM_GOOD;
+		break;
+	case TC_UNDERRUN:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_DATA_UNDERRUN;
+		ts->residual = le32_to_cpu(*(__le32 *)dl->status_block);
+		break;
+	case TC_OVERRUN:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_DATA_OVERRUN;
+		ts->residual = 0;
+		break;
+	case TC_SSP_RESP:
+	case TC_ATA_RESP:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_PROTO_RESPONSE;
+		asd_get_response_tasklet(ascb, dl);
+		break;
+	case TF_OPEN_REJECT:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_OPEN_REJECT;
+		if (dl->status_block[1] & 2)
+			ts->open_rej_reason = 1 + dl->status_block[2];
+		else if (dl->status_block[1] & 1)
+			ts->open_rej_reason = (dl->status_block[2] >> 4)+10;
+		else
+			ts->open_rej_reason = SAS_OREJ_UNKNOWN;
+		break;
+	case TF_OPEN_TO:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_OPEN_TO;
+		break;
+	case TF_PHY_DOWN:
+	case TU_PHY_DOWN:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_PHY_DOWN;
+		break;
+	case TI_PHY_DOWN:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_PHY_DOWN;
+		break;
+	case TI_BREAK:
+	case TI_PROTO_ERR:
+	case TI_NAK:
+	case TI_ACK_NAK_TO:
+	case TF_SMP_XMIT_RCV_ERR:
+	case TC_ATA_R_ERR_RECV:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_INTERRUPTED;
+		break;
+	case TF_BREAK:
+	case TU_BREAK:
+	case TU_ACK_NAK_TO:
+	case TF_SMPRSP_TO:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_DEV_NO_RESPONSE;
+		break;
+	case TF_NAK_RECV:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_NAK_R_ERR;
+		break;
+	case TA_I_T_NEXUS_LOSS:
+		opcode = dl->status_block[0];
+		goto Again;
+		break;
+	case TF_INV_CONN_HANDLE:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_DEVICE_UNKNOWN;
+		break;
+	case TF_REQUESTED_N_PENDING:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_PENDING;
+		break;
+	case TC_TASK_CLEARED:
+	case TA_ON_REQ:
+		ts->resp = SAS_TASK_COMPLETE;
+		ts->stat = SAS_ABORTED_TASK;
+		break;
+
+	case TF_NO_SMP_CONN:
+	case TF_TMF_NO_CTX:
+	case TF_TMF_NO_TAG:
+	case TF_TMF_TAG_FREE:
+	case TF_TMF_TASK_DONE:
+	case TF_TMF_NO_CONN_HANDLE:
+	case TF_IRTT_TO:
+	case TF_IU_SHORT:
+	case TF_DATA_OFFS_ERR:
+		ts->resp = SAS_TASK_UNDELIVERED;
+		ts->stat = SAS_DEV_NO_RESPONSE;
+		break;
+
+	case TC_LINK_ADM_RESP:
+	case TC_CONTROL_PHY:
+	case TC_RESUME:
+	case TC_PARTIAL_SG_LIST:
+	default:
+		ASD_DPRINTK("%s: dl opcode: 0x%x?\n", __FUNCTION__, opcode);
+		break;
+	}
+
+	switch (task->task_proto) {
+	case SATA_PROTO:
+	case SAS_PROTO_STP:
+		asd_unbuild_ata_ascb(ascb);
+		break;
+	case SAS_PROTO_SMP:
+		asd_unbuild_smp_ascb(ascb);
+		break;
+	case SAS_PROTO_SSP:
+		asd_unbuild_ssp_ascb(ascb);
+	default:
+		break;
+	}
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
+	task->task_state_flags |= SAS_TASK_STATE_DONE;
+	if (unlikely((task->task_state_flags & SAS_TASK_STATE_ABORTED))) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		ASD_DPRINTK("task 0x%p done with opcode 0x%x resp 0x%x "
+			    "stat 0x%x but aborted by upper layer!\n",
+			    task, opcode, ts->resp, ts->stat);
+		complete(&ascb->completion);
+	} else {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		task->lldd_task = NULL;
+		asd_ascb_free(ascb);
+		mb();
+		task->task_done(task);
+	}
+}
+
+/* ---------- ATA ---------- */
+
+static int asd_build_ata_ascb(struct asd_ascb *ascb, struct sas_task *task,
+			      unsigned long gfp_flags)
+{
+	struct domain_device *dev = task->dev;
+	struct scb *scb;
+	u8     flags;
+	int    res = 0;
+
+	scb = ascb->scb;
+
+	if (unlikely(task->ata_task.device_control_reg_update))
+		scb->header.opcode = CONTROL_ATA_DEV;
+	else if (dev->sata_dev.command_set == ATA_COMMAND_SET)
+		scb->header.opcode = INITIATE_ATA_TASK;
+	else
+		scb->header.opcode = INITIATE_ATAPI_TASK;
+
+	scb->ata_task.proto_conn_rate = (1 << 5); /* STP */
+	if (dev->port->oob_mode == SAS_OOB_MODE)
+		scb->ata_task.proto_conn_rate |= dev->linkrate;
+
+	scb->ata_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
+	scb->ata_task.fis = task->ata_task.fis;
+	scb->ata_task.fis.fis_type = 0x27;
+	if (likely(!task->ata_task.device_control_reg_update))
+		scb->ata_task.fis.flags |= 0x80; /* C=1: update ATA cmd reg */
+	scb->ata_task.fis.flags &= 0xF0; /* PM_PORT field shall be 0 */
+	if (dev->sata_dev.command_set == ATAPI_COMMAND_SET)
+		memcpy(scb->ata_task.atapi_packet, task->ata_task.atapi_packet,
+		       16);
+	scb->ata_task.sister_scb = cpu_to_le16(0xFFFF);
+	scb->ata_task.conn_handle = cpu_to_le16(
+		(u16)(unsigned long)dev->lldd_dev);
+
+	if (likely(!task->ata_task.device_control_reg_update)) {
+		flags = 0;
+		if (task->ata_task.dma_xfer)
+			flags |= DATA_XFER_MODE_DMA;
+		if (task->ata_task.use_ncq &&
+		    dev->sata_dev.command_set != ATAPI_COMMAND_SET)
+			flags |= ATA_Q_TYPE_NCQ;
+		flags |= data_dir_flags[task->data_dir];
+		scb->ata_task.ata_flags = flags;
+
+		scb->ata_task.retry_count = task->ata_task.retry_count;
+
+		flags = 0;
+		if (task->ata_task.set_affil_pol)
+			flags |= SET_AFFIL_POLICY;
+		if (task->ata_task.stp_affil_pol)
+			flags |= STP_AFFIL_POLICY;
+		scb->ata_task.flags = flags;
+	}
+	ascb->tasklet_complete = asd_task_tasklet_complete;
+
+	if (likely(!task->ata_task.device_control_reg_update))
+		res = asd_map_scatterlist(task, scb->ata_task.sg_element,
+					  gfp_flags);
+
+	return res;
+}
+
+static void asd_unbuild_ata_ascb(struct asd_ascb *a)
+{
+	asd_unmap_scatterlist(a);
+}
+
+/* ---------- SMP ---------- */
+
+static int asd_build_smp_ascb(struct asd_ascb *ascb, struct sas_task *task,
+			      unsigned long gfp_flags)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	struct domain_device *dev = task->dev;
+	struct scb *scb;
+
+	pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_req, 1,
+		   PCI_DMA_FROMDEVICE);
+	pci_map_sg(asd_ha->pcidev, &task->smp_task.smp_resp, 1,
+		   PCI_DMA_FROMDEVICE);
+
+	scb = ascb->scb;
+
+	scb->header.opcode = INITIATE_SMP_TASK;
+
+	scb->smp_task.proto_conn_rate = dev->linkrate;
+
+	scb->smp_task.smp_req.bus_addr =
+		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
+	scb->smp_task.smp_req.size =
+		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
+
+	scb->smp_task.smp_resp.bus_addr =
+		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
+	scb->smp_task.smp_resp.size =
+		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
+
+	scb->smp_task.sister_scb = cpu_to_le16(0xFFFF);
+	scb->smp_task.conn_handle = cpu_to_le16((u16)
+						(unsigned long)dev->lldd_dev);
+
+	ascb->tasklet_complete = asd_task_tasklet_complete;
+
+	return 0;
+}
+
+static void asd_unbuild_smp_ascb(struct asd_ascb *a)
+{
+	struct sas_task *task = a->uldd_task;
+
+	BUG_ON(!task);
+	pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_req, 1,
+		     PCI_DMA_FROMDEVICE);
+	pci_unmap_sg(a->ha->pcidev, &task->smp_task.smp_resp, 1,
+		     PCI_DMA_FROMDEVICE);
+}
+
+/* ---------- SSP ---------- */
+
+static int asd_build_ssp_ascb(struct asd_ascb *ascb, struct sas_task *task,
+			      unsigned long gfp_flags)
+{
+	struct domain_device *dev = task->dev;
+	struct scb *scb;
+	int    res = 0;
+
+	scb = ascb->scb;
+
+	scb->header.opcode = INITIATE_SSP_TASK;
+
+	scb->ssp_task.proto_conn_rate  = (1 << 4); /* SSP */
+	scb->ssp_task.proto_conn_rate |= dev->linkrate;
+	scb->ssp_task.total_xfer_len = cpu_to_le32(task->total_xfer_len);
+	scb->ssp_task.ssp_frame.frame_type = SSP_DATA;
+	memcpy(scb->ssp_task.ssp_frame.hashed_dest_addr, dev->hashed_sas_addr,
+	       HASHED_SAS_ADDR_SIZE);
+	memcpy(scb->ssp_task.ssp_frame.hashed_src_addr,
+	       dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
+	scb->ssp_task.ssp_frame.tptt = cpu_to_be16(0xFFFF);
+
+	memcpy(scb->ssp_task.ssp_cmd.lun, task->ssp_task.LUN, 8);
+	if (task->ssp_task.enable_first_burst)
+		scb->ssp_task.ssp_cmd.efb_prio_attr |= EFB_MASK;
+	scb->ssp_task.ssp_cmd.efb_prio_attr |= (task->ssp_task.task_prio << 3);
+	scb->ssp_task.ssp_cmd.efb_prio_attr |= (task->ssp_task.task_attr & 7);
+	memcpy(scb->ssp_task.ssp_cmd.cdb, task->ssp_task.cdb, 16);
+
+	scb->ssp_task.sister_scb = cpu_to_le16(0xFFFF);
+	scb->ssp_task.conn_handle = cpu_to_le16(
+		(u16)(unsigned long)dev->lldd_dev);
+	scb->ssp_task.data_dir = data_dir_flags[task->data_dir];
+	scb->ssp_task.retry_count = scb->ssp_task.retry_count;
+
+	ascb->tasklet_complete = asd_task_tasklet_complete;
+
+	res = asd_map_scatterlist(task, scb->ssp_task.sg_element, gfp_flags);
+
+	return res;
+}
+
+static void asd_unbuild_ssp_ascb(struct asd_ascb *a)
+{
+	asd_unmap_scatterlist(a);
+}
+
+/* ---------- Execute Task ---------- */
+
+static inline int asd_can_queue(struct asd_ha_struct *asd_ha, int num)
+{
+	int res = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&asd_ha->seq.pend_q_lock, flags);
+	if ((asd_ha->seq.can_queue - num) < 0)
+		res = -SAS_QUEUE_FULL;
+	else
+		asd_ha->seq.can_queue -= num;
+	spin_unlock_irqrestore(&asd_ha->seq.pend_q_lock, flags);
+
+	return res;
+}
+
+int asd_execute_task(struct sas_task *task, const int num,
+		     unsigned long gfp_flags)
+{
+	int res = 0;
+	LIST_HEAD(alist);
+	struct sas_task *t = task;
+	struct asd_ascb *ascb = NULL, *a;
+	struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
+
+	res = asd_can_queue(asd_ha, num);
+	if (res)
+		return res;
+
+	res = num;
+	ascb = asd_ascb_alloc_list(asd_ha, &res, gfp_flags);
+	if (res) {
+		res = -ENOMEM;
+		goto out_err;
+	}
+
+	__list_add(&alist, ascb->list.prev, &ascb->list);
+	list_for_each_entry(a, &alist, list) {
+		a->uldd_task = t;
+		t->lldd_task = a;
+		t = list_entry(t->list.next, struct sas_task, list);
+	}
+	list_for_each_entry(a, &alist, list) {
+		t = a->uldd_task;
+		a->uldd_timer = 1;
+		if (t->task_proto & SAS_PROTO_STP)
+			t->task_proto = SAS_PROTO_STP;
+		switch (t->task_proto) {
+		case SATA_PROTO:
+		case SAS_PROTO_STP:
+			res = asd_build_ata_ascb(a, t, gfp_flags);
+			break;
+		case SAS_PROTO_SMP:
+			res = asd_build_smp_ascb(a, t, gfp_flags);
+			break;
+		case SAS_PROTO_SSP:
+			res = asd_build_ssp_ascb(a, t, gfp_flags);
+			break;
+		default:
+			asd_printk("unknown sas_task proto: 0x%x\n",
+				   t->task_proto);
+			res = -ENOMEM;
+			break;
+		}
+		if (res)
+			goto out_err_unmap;
+	}
+	list_del_init(&alist);
+
+	res = asd_post_ascb_list(asd_ha, ascb, num);
+	if (unlikely(res)) {
+		a = NULL;
+		__list_add(&alist, ascb->list.prev, &ascb->list);
+		goto out_err_unmap;
+	}
+
+	return 0;
+out_err_unmap:
+	{
+		struct asd_ascb *b = a;
+		list_for_each_entry(a, &alist, list) {
+			if (a == b)
+				break;
+			t = a->uldd_task;
+			switch (t->task_proto) {
+			case SATA_PROTO:
+			case SAS_PROTO_STP:
+				asd_unbuild_ata_ascb(a);
+				break;
+			case SAS_PROTO_SMP:
+				asd_unbuild_smp_ascb(a);
+				break;
+			case SAS_PROTO_SSP:
+				asd_unbuild_ssp_ascb(a);
+			default:
+				break;
+			}
+			t->lldd_task = NULL;
+		}
+	}
+	list_del_init(&alist);
+out_err:
+	if (ascb)
+		asd_ascb_free_list(ascb);
+	asd_can_dequeue(asd_ha, num);
+	return res;
+}

drivers/scsi/aic94xx/aic94xx_tmf.c

@@ -0,0 +1,636 @@
+/*
+ * Aic94xx Task Management Functions
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/spinlock.h>
+#include "aic94xx.h"
+#include "aic94xx_sas.h"
+#include "aic94xx_hwi.h"
+
+/* ---------- Internal enqueue ---------- */
+
+static int asd_enqueue_internal(struct asd_ascb *ascb,
+		void (*tasklet_complete)(struct asd_ascb *,
+					 struct done_list_struct *),
+				void (*timed_out)(unsigned long))
+{
+	int res;
+
+	ascb->tasklet_complete = tasklet_complete;
+	ascb->uldd_timer = 1;
+
+	ascb->timer.data = (unsigned long) ascb;
+	ascb->timer.function = timed_out;
+	ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
+
+	add_timer(&ascb->timer);
+
+	res = asd_post_ascb_list(ascb->ha, ascb, 1);
+	if (unlikely(res))
+		del_timer(&ascb->timer);
+	return res;
+}
+
+static inline void asd_timedout_common(unsigned long data)
+{
+	struct asd_ascb *ascb = (void *) data;
+	struct asd_seq_data *seq = &ascb->ha->seq;
+        unsigned long flags;
+
+	spin_lock_irqsave(&seq->pend_q_lock, flags);
+        seq->pending--;
+        list_del_init(&ascb->list);
+        spin_unlock_irqrestore(&seq->pend_q_lock, flags);
+}
+
+/* ---------- CLEAR NEXUS ---------- */
+
+static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb,
+					     struct done_list_struct *dl)
+{
+	ASD_DPRINTK("%s: here\n", __FUNCTION__);
+	if (!del_timer(&ascb->timer)) {
+		ASD_DPRINTK("%s: couldn't delete timer\n", __FUNCTION__);
+		return;
+	}
+	ASD_DPRINTK("%s: opcode: 0x%x\n", __FUNCTION__, dl->opcode);
+	ascb->uldd_task = (void *) (unsigned long) dl->opcode;
+	complete(&ascb->completion);
+}
+
+static void asd_clear_nexus_timedout(unsigned long data)
+{
+	struct asd_ascb *ascb = (void *) data;
+
+	ASD_DPRINTK("%s: here\n", __FUNCTION__);
+	asd_timedout_common(data);
+	ascb->uldd_task = (void *) TMF_RESP_FUNC_FAILED;
+	complete(&ascb->completion);
+}
+
+#define CLEAR_NEXUS_PRE         \
+	ASD_DPRINTK("%s: PRE\n", __FUNCTION__); \
+        res = 1;                \
+	ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL); \
+	if (!ascb)              \
+		return -ENOMEM; \
+                                \
+	scb = ascb->scb;        \
+	scb->header.opcode = CLEAR_NEXUS
+
+#define CLEAR_NEXUS_POST        \
+	ASD_DPRINTK("%s: POST\n", __FUNCTION__); \
+	res = asd_enqueue_internal(ascb, asd_clear_nexus_tasklet_complete, \
+				   asd_clear_nexus_timedout);              \
+	if (res)                \
+		goto out_err;   \
+	ASD_DPRINTK("%s: clear nexus posted, waiting...\n", __FUNCTION__); \
+	wait_for_completion(&ascb->completion); \
+	res = (int) (unsigned long) ascb->uldd_task; \
+	if (res == TC_NO_ERROR) \
+		res = TMF_RESP_FUNC_COMPLETE;   \
+out_err:                        \
+	asd_ascb_free(ascb);    \
+	return res
+
+int asd_clear_nexus_ha(struct sas_ha_struct *sas_ha)
+{
+	struct asd_ha_struct *asd_ha = sas_ha->lldd_ha;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_ADAPTER;
+	CLEAR_NEXUS_POST;
+}
+
+int asd_clear_nexus_port(struct asd_sas_port *port)
+{
+	struct asd_ha_struct *asd_ha = port->ha->lldd_ha;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_PORT;
+	scb->clear_nexus.conn_mask = port->phy_mask;
+	CLEAR_NEXUS_POST;
+}
+
+#if 0
+static int asd_clear_nexus_I_T(struct domain_device *dev)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_I_T;
+	scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ;
+	if (dev->tproto)
+		scb->clear_nexus.flags |= SUSPEND_TX;
+	scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
+						   dev->lldd_dev);
+	CLEAR_NEXUS_POST;
+}
+#endif
+
+static int asd_clear_nexus_I_T_L(struct domain_device *dev, u8 *lun)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_I_T_L;
+	scb->clear_nexus.flags = SEND_Q | EXEC_Q | NOTINQ;
+	if (dev->tproto)
+		scb->clear_nexus.flags |= SUSPEND_TX;
+	memcpy(scb->clear_nexus.ssp_task.lun, lun, 8);
+	scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
+						   dev->lldd_dev);
+	CLEAR_NEXUS_POST;
+}
+
+static int asd_clear_nexus_tag(struct sas_task *task)
+{
+	struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
+	struct asd_ascb *tascb = task->lldd_task;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_TAG;
+	memcpy(scb->clear_nexus.ssp_task.lun, task->ssp_task.LUN, 8);
+	scb->clear_nexus.ssp_task.tag = tascb->tag;
+	if (task->dev->tproto)
+		scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
+							  task->dev->lldd_dev);
+	CLEAR_NEXUS_POST;
+}
+
+static int asd_clear_nexus_index(struct sas_task *task)
+{
+	struct asd_ha_struct *asd_ha = task->dev->port->ha->lldd_ha;
+	struct asd_ascb *tascb = task->lldd_task;
+	struct asd_ascb *ascb;
+	struct scb *scb;
+	int res;
+
+	CLEAR_NEXUS_PRE;
+	scb->clear_nexus.nexus = NEXUS_TRANS_CX;
+	if (task->dev->tproto)
+		scb->clear_nexus.conn_handle = cpu_to_le16((u16)(unsigned long)
+							  task->dev->lldd_dev);
+	scb->clear_nexus.index = cpu_to_le16(tascb->tc_index);
+	CLEAR_NEXUS_POST;
+}
+
+/* ---------- TMFs ---------- */
+
+static void asd_tmf_timedout(unsigned long data)
+{
+	struct asd_ascb *ascb = (void *) data;
+
+	ASD_DPRINTK("tmf timed out\n");
+	asd_timedout_common(data);
+	ascb->uldd_task = (void *) TMF_RESP_FUNC_FAILED;
+	complete(&ascb->completion);
+}
+
+static int asd_get_tmf_resp_tasklet(struct asd_ascb *ascb,
+				    struct done_list_struct *dl)
+{
+	struct asd_ha_struct *asd_ha = ascb->ha;
+	unsigned long flags;
+	struct tc_resp_sb_struct {
+		__le16 index_escb;
+		u8     len_lsb;
+		u8     flags;
+	} __attribute__ ((packed)) *resp_sb = (void *) dl->status_block;
+
+	int  edb_id = ((resp_sb->flags & 0x70) >> 4)-1;
+	struct asd_ascb *escb;
+	struct asd_dma_tok *edb;
+	struct ssp_frame_hdr *fh;
+	struct ssp_response_iu   *ru;
+	int res = TMF_RESP_FUNC_FAILED;
+
+	ASD_DPRINTK("tmf resp tasklet\n");
+
+	spin_lock_irqsave(&asd_ha->seq.tc_index_lock, flags);
+	escb = asd_tc_index_find(&asd_ha->seq,
+				 (int)le16_to_cpu(resp_sb->index_escb));
+	spin_unlock_irqrestore(&asd_ha->seq.tc_index_lock, flags);
+
+	if (!escb) {
+		ASD_DPRINTK("Uh-oh! No escb for this dl?!\n");
+		return res;
+	}
+
+	edb = asd_ha->seq.edb_arr[edb_id + escb->edb_index];
+	ascb->tag = *(__be16 *)(edb->vaddr+4);
+	fh = edb->vaddr + 16;
+	ru = edb->vaddr + 16 + sizeof(*fh);
+	res = ru->status;
+	if (ru->datapres == 1)	  /* Response data present */
+		res = ru->resp_data[3];
+#if 0
+	ascb->tag = fh->tag;
+#endif
+	ascb->tag_valid = 1;
+
+	asd_invalidate_edb(escb, edb_id);
+	return res;
+}
+
+static void asd_tmf_tasklet_complete(struct asd_ascb *ascb,
+				     struct done_list_struct *dl)
+{
+	if (!del_timer(&ascb->timer))
+		return;
+
+	ASD_DPRINTK("tmf tasklet complete\n");
+
+	if (dl->opcode == TC_SSP_RESP)
+		ascb->uldd_task = (void *) (unsigned long)
+			asd_get_tmf_resp_tasklet(ascb, dl);
+	else
+		ascb->uldd_task = (void *) 0xFF00 + (unsigned long) dl->opcode;
+
+	complete(&ascb->completion);
+}
+
+static inline int asd_clear_nexus(struct sas_task *task)
+{
+	int res = TMF_RESP_FUNC_FAILED;
+	struct asd_ascb *tascb = task->lldd_task;
+	unsigned long flags;
+
+	ASD_DPRINTK("task not done, clearing nexus\n");
+	if (tascb->tag_valid)
+		res = asd_clear_nexus_tag(task);
+	else
+		res = asd_clear_nexus_index(task);
+	wait_for_completion_timeout(&tascb->completion,
+				    AIC94XX_SCB_TIMEOUT);
+	ASD_DPRINTK("came back from clear nexus\n");
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_DONE)
+		res = TMF_RESP_FUNC_COMPLETE;
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	return res;
+}
+
+/**
+ * asd_abort_task -- ABORT TASK TMF
+ * @task: the task to be aborted
+ *
+ * Before calling ABORT TASK the task state flags should be ORed with
+ * SAS_TASK_STATE_ABORTED (unless SAS_TASK_STATE_DONE is set) under
+ * the task_state_lock IRQ spinlock, then ABORT TASK *must* be called.
+ *
+ * Implements the ABORT TASK TMF, I_T_L_Q nexus.
+ * Returns: SAS TMF responses (see sas_task.h),
+ *          -ENOMEM,
+ *          -SAS_QUEUE_FULL.
+ *
+ * When ABORT TASK returns, the caller of ABORT TASK checks first the
+ * task->task_state_flags, and then the return value of ABORT TASK.
+ *
+ * If the task has task state bit SAS_TASK_STATE_DONE set, then the
+ * task was completed successfully prior to it being aborted.  The
+ * caller of ABORT TASK has responsibility to call task->task_done()
+ * xor free the task, depending on their framework.  The return code
+ * is TMF_RESP_FUNC_FAILED in this case.
+ *
+ * Else the SAS_TASK_STATE_DONE bit is not set,
+ * 	If the return code is TMF_RESP_FUNC_COMPLETE, then
+ * 		the task was aborted successfully.  The caller of
+ * 		ABORT TASK has responsibility to call task->task_done()
+ *              to finish the task, xor free the task depending on their
+ *		framework.
+ *	else
+ * 		the ABORT TASK returned some kind of error. The task
+ *              was _not_ cancelled.  Nothing can be assumed.
+ *		The caller of ABORT TASK may wish to retry.
+ */
+int asd_abort_task(struct sas_task *task)
+{
+	struct asd_ascb *tascb = task->lldd_task;
+	struct asd_ha_struct *asd_ha = tascb->ha;
+	int res = 1;
+	unsigned long flags;
+	struct asd_ascb *ascb = NULL;
+	struct scb *scb;
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		res = TMF_RESP_FUNC_COMPLETE;
+		ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task);
+		goto out_done;
+	}
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
+	if (!ascb)
+		return -ENOMEM;
+	scb = ascb->scb;
+
+	scb->header.opcode = ABORT_TASK;
+
+	switch (task->task_proto) {
+	case SATA_PROTO:
+	case SAS_PROTO_STP:
+		scb->abort_task.proto_conn_rate = (1 << 5); /* STP */
+		break;
+	case SAS_PROTO_SSP:
+		scb->abort_task.proto_conn_rate  = (1 << 4); /* SSP */
+		scb->abort_task.proto_conn_rate |= task->dev->linkrate;
+		break;
+	case SAS_PROTO_SMP:
+		break;
+	default:
+		break;
+	}
+
+	if (task->task_proto == SAS_PROTO_SSP) {
+		scb->abort_task.ssp_frame.frame_type = SSP_TASK;
+		memcpy(scb->abort_task.ssp_frame.hashed_dest_addr,
+		       task->dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
+		memcpy(scb->abort_task.ssp_frame.hashed_src_addr,
+		       task->dev->port->ha->hashed_sas_addr,
+		       HASHED_SAS_ADDR_SIZE);
+		scb->abort_task.ssp_frame.tptt = cpu_to_be16(0xFFFF);
+
+		memcpy(scb->abort_task.ssp_task.lun, task->ssp_task.LUN, 8);
+		scb->abort_task.ssp_task.tmf = TMF_ABORT_TASK;
+		scb->abort_task.ssp_task.tag = cpu_to_be16(0xFFFF);
+	}
+
+	scb->abort_task.sister_scb = cpu_to_le16(0xFFFF);
+	scb->abort_task.conn_handle = cpu_to_le16(
+		(u16)(unsigned long)task->dev->lldd_dev);
+	scb->abort_task.retry_count = 1;
+	scb->abort_task.index = cpu_to_le16((u16)tascb->tc_index);
+	scb->abort_task.itnl_to = cpu_to_le16(ITNL_TIMEOUT_CONST);
+
+	res = asd_enqueue_internal(ascb, asd_tmf_tasklet_complete,
+				   asd_tmf_timedout);
+	if (res)
+		goto out;
+	wait_for_completion(&ascb->completion);
+	ASD_DPRINTK("tmf came back\n");
+
+	res = (int) (unsigned long) ascb->uldd_task;
+	tascb->tag = ascb->tag;
+	tascb->tag_valid = ascb->tag_valid;
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		res = TMF_RESP_FUNC_COMPLETE;
+		ASD_DPRINTK("%s: task 0x%p done\n", __FUNCTION__, task);
+		goto out_done;
+	}
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	switch (res) {
+	/* The task to be aborted has been sent to the device.
+	 * We got a Response IU for the ABORT TASK TMF. */
+	case TC_NO_ERROR + 0xFF00:
+	case TMF_RESP_FUNC_COMPLETE:
+	case TMF_RESP_FUNC_FAILED:
+		res = asd_clear_nexus(task);
+		break;
+	case TMF_RESP_INVALID_FRAME:
+	case TMF_RESP_OVERLAPPED_TAG:
+	case TMF_RESP_FUNC_ESUPP:
+	case TMF_RESP_NO_LUN:
+		goto out_done; break;
+	}
+	/* In the following we assume that the managing layer
+	 * will _never_ make a mistake, when issuing ABORT TASK.
+	 */
+	switch (res) {
+	default:
+		res = asd_clear_nexus(task);
+		/* fallthrough */
+	case TC_NO_ERROR + 0xFF00:
+	case TMF_RESP_FUNC_COMPLETE:
+		break;
+	/* The task hasn't been sent to the device xor we never got
+	 * a (sane) Response IU for the ABORT TASK TMF.
+	 */
+	case TF_NAK_RECV + 0xFF00:
+		res = TMF_RESP_INVALID_FRAME;
+		break;
+	case TF_TMF_TASK_DONE + 0xFF00:	/* done but not reported yet */
+		res = TMF_RESP_FUNC_FAILED;
+		wait_for_completion_timeout(&tascb->completion,
+					    AIC94XX_SCB_TIMEOUT);
+		spin_lock_irqsave(&task->task_state_lock, flags);
+		if (task->task_state_flags & SAS_TASK_STATE_DONE)
+			res = TMF_RESP_FUNC_COMPLETE;
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		goto out_done;
+	case TF_TMF_NO_TAG + 0xFF00:
+	case TF_TMF_TAG_FREE + 0xFF00: /* the tag is in the free list */
+	case TF_TMF_NO_CONN_HANDLE + 0xFF00: /* no such device */
+		res = TMF_RESP_FUNC_COMPLETE;
+		goto out_done;
+	case TF_TMF_NO_CTX + 0xFF00: /* not in seq, or proto != SSP */
+		res = TMF_RESP_FUNC_ESUPP;
+		goto out;
+	}
+out_done:
+	if (res == TMF_RESP_FUNC_COMPLETE) {
+		task->lldd_task = NULL;
+		mb();
+		asd_ascb_free(tascb);
+	}
+out:
+	asd_ascb_free(ascb);
+	ASD_DPRINTK("task 0x%p aborted, res: 0x%x\n", task, res);
+	return res;
+}
+
+/**
+ * asd_initiate_ssp_tmf -- send a TMF to an I_T_L or I_T_L_Q nexus
+ * @dev: pointer to struct domain_device of interest
+ * @lun: pointer to u8[8] which is the LUN
+ * @tmf: the TMF to be performed (see sas_task.h or the SAS spec)
+ * @index: the transaction context of the task to be queried if QT TMF
+ *
+ * This function is used to send ABORT TASK SET, CLEAR ACA,
+ * CLEAR TASK SET, LU RESET and QUERY TASK TMFs.
+ *
+ * No SCBs should be queued to the I_T_L nexus when this SCB is
+ * pending.
+ *
+ * Returns: TMF response code (see sas_task.h or the SAS spec)
+ */
+static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun,
+				int tmf, int index)
+{
+	struct asd_ha_struct *asd_ha = dev->port->ha->lldd_ha;
+	struct asd_ascb *ascb;
+	int res = 1;
+	struct scb *scb;
+
+	if (!(dev->tproto & SAS_PROTO_SSP))
+		return TMF_RESP_FUNC_ESUPP;
+
+	ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);
+	if (!ascb)
+		return -ENOMEM;
+	scb = ascb->scb;
+
+	if (tmf == TMF_QUERY_TASK)
+		scb->header.opcode = QUERY_SSP_TASK;
+	else
+		scb->header.opcode = INITIATE_SSP_TMF;
+
+	scb->ssp_tmf.proto_conn_rate  = (1 << 4); /* SSP */
+	scb->ssp_tmf.proto_conn_rate |= dev->linkrate;
+	/* SSP frame header */
+	scb->ssp_tmf.ssp_frame.frame_type = SSP_TASK;
+	memcpy(scb->ssp_tmf.ssp_frame.hashed_dest_addr,
+	       dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
+	memcpy(scb->ssp_tmf.ssp_frame.hashed_src_addr,
+	       dev->port->ha->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
+	scb->ssp_tmf.ssp_frame.tptt = cpu_to_be16(0xFFFF);
+	/* SSP Task IU */
+	memcpy(scb->ssp_tmf.ssp_task.lun, lun, 8);
+	scb->ssp_tmf.ssp_task.tmf = tmf;
+
+	scb->ssp_tmf.sister_scb = cpu_to_le16(0xFFFF);
+	scb->ssp_tmf.conn_handle= cpu_to_le16((u16)(unsigned long)
+					      dev->lldd_dev);
+	scb->ssp_tmf.retry_count = 1;
+	scb->ssp_tmf.itnl_to = cpu_to_le16(ITNL_TIMEOUT_CONST);
+	if (tmf == TMF_QUERY_TASK)
+		scb->ssp_tmf.index = cpu_to_le16(index);
+
+	res = asd_enqueue_internal(ascb, asd_tmf_tasklet_complete,
+				   asd_tmf_timedout);
+	if (res)
+		goto out_err;
+	wait_for_completion(&ascb->completion);
+	res = (int) (unsigned long) ascb->uldd_task;
+
+	switch (res) {
+	case TC_NO_ERROR + 0xFF00:
+		res = TMF_RESP_FUNC_COMPLETE;
+		break;
+	case TF_NAK_RECV + 0xFF00:
+		res = TMF_RESP_INVALID_FRAME;
+		break;
+	case TF_TMF_TASK_DONE + 0xFF00:
+		res = TMF_RESP_FUNC_FAILED;
+		break;
+	case TF_TMF_NO_TAG + 0xFF00:
+	case TF_TMF_TAG_FREE + 0xFF00: /* the tag is in the free list */
+	case TF_TMF_NO_CONN_HANDLE + 0xFF00: /* no such device */
+		res = TMF_RESP_FUNC_COMPLETE;
+		break;
+	case TF_TMF_NO_CTX + 0xFF00: /* not in seq, or proto != SSP */
+		res = TMF_RESP_FUNC_ESUPP;
+		break;
+	default:
+		ASD_DPRINTK("%s: converting result 0x%x to TMF_RESP_FUNC_FAILED\n",
+			    __FUNCTION__, res);
+		res = TMF_RESP_FUNC_FAILED;
+		break;
+	}
+out_err:
+	asd_ascb_free(ascb);
+	return res;
+}
+
+int asd_abort_task_set(struct domain_device *dev, u8 *lun)
+{
+	int res = asd_initiate_ssp_tmf(dev, lun, TMF_ABORT_TASK_SET, 0);
+
+	if (res == TMF_RESP_FUNC_COMPLETE)
+		asd_clear_nexus_I_T_L(dev, lun);
+	return res;
+}
+
+int asd_clear_aca(struct domain_device *dev, u8 *lun)
+{
+	int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_ACA, 0);
+
+	if (res == TMF_RESP_FUNC_COMPLETE)
+		asd_clear_nexus_I_T_L(dev, lun);
+	return res;
+}
+
+int asd_clear_task_set(struct domain_device *dev, u8 *lun)
+{
+	int res = asd_initiate_ssp_tmf(dev, lun, TMF_CLEAR_TASK_SET, 0);
+
+	if (res == TMF_RESP_FUNC_COMPLETE)
+		asd_clear_nexus_I_T_L(dev, lun);
+	return res;
+}
+
+int asd_lu_reset(struct domain_device *dev, u8 *lun)
+{
+	int res = asd_initiate_ssp_tmf(dev, lun, TMF_LU_RESET, 0);
+
+	if (res == TMF_RESP_FUNC_COMPLETE)
+		asd_clear_nexus_I_T_L(dev, lun);
+	return res;
+}
+
+/**
+ * asd_query_task -- send a QUERY TASK TMF to an I_T_L_Q nexus
+ * task: pointer to sas_task struct of interest
+ *
+ * Returns: TMF_RESP_FUNC_COMPLETE if the task is not in the task set,
+ * or TMF_RESP_FUNC_SUCC if the task is in the task set.
+ *
+ * Normally the management layer sets the task to aborted state,
+ * and then calls query task and then abort task.
+ */
+int asd_query_task(struct sas_task *task)
+{
+	struct asd_ascb *ascb = task->lldd_task;
+	int index;
+
+	if (ascb) {
+		index = ascb->tc_index;
+		return asd_initiate_ssp_tmf(task->dev, task->ssp_task.LUN,
+					    TMF_QUERY_TASK, index);
+	}
+	return TMF_RESP_FUNC_COMPLETE;
+}

drivers/scsi/arcmsr/Makefile

@@ -0,0 +1,6 @@
+# File: drivers/arcmsr/Makefile
+# Makefile for the ARECA PCI-X PCI-EXPRESS SATA RAID controllers SCSI driver.
+
+arcmsr-objs := arcmsr_attr.o arcmsr_hba.o
+
+obj-$(CONFIG_SCSI_ARCMSR) := arcmsr.o

drivers/scsi/arcmsr/arcmsr.h

@@ -0,0 +1,472 @@
+/*
+*******************************************************************************
+**        O.S   : Linux
+**   FILE NAME  : arcmsr.h
+**        BY    : Erich Chen
+**   Description: SCSI RAID Device Driver for
+**                ARECA RAID Host adapter
+*******************************************************************************
+** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved.
+**
+**     Web site: www.areca.com.tw
+**       E-mail: erich@areca.com.tw
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License version 2 as
+** published by the Free Software Foundation.
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*******************************************************************************
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+**(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************
+*/
+#include <linux/interrupt.h>
+
+struct class_device_attribute;
+
+#define ARCMSR_MAX_OUTSTANDING_CMD 						256
+#define ARCMSR_MAX_FREECCB_NUM							288
+#define ARCMSR_DRIVER_VERSION				"Driver Version 1.20.00.13"
+#define ARCMSR_SCSI_INITIATOR_ID						255
+#define ARCMSR_MAX_XFER_SECTORS							512
+#define ARCMSR_MAX_TARGETID							 17
+#define ARCMSR_MAX_TARGETLUN							  8
+#define ARCMSR_MAX_CMD_PERLUN				 ARCMSR_MAX_OUTSTANDING_CMD
+#define ARCMSR_MAX_QBUFFER						       4096
+#define ARCMSR_MAX_SG_ENTRIES							 38
+
+/*
+*******************************************************************************
+**        split 64bits dma addressing
+*******************************************************************************
+*/
+#define dma_addr_hi32(addr)               (uint32_t) ((addr>>16)>>16)
+#define dma_addr_lo32(addr)               (uint32_t) (addr & 0xffffffff)
+/*
+*******************************************************************************
+**        MESSAGE CONTROL CODE
+*******************************************************************************
+*/
+struct CMD_MESSAGE
+{
+      uint32_t HeaderLength;
+      uint8_t  Signature[8];
+      uint32_t Timeout;
+      uint32_t ControlCode;
+      uint32_t ReturnCode;
+      uint32_t Length;
+};
+/*
+*******************************************************************************
+**        IOP Message Transfer Data for user space
+*******************************************************************************
+*/
+struct CMD_MESSAGE_FIELD
+{
+    struct CMD_MESSAGE			cmdmessage;
+    uint8_t				messagedatabuffer[1032];
+};
+/* IOP message transfer */
+#define ARCMSR_MESSAGE_FAIL             0x0001
+/* DeviceType */
+#define ARECA_SATA_RAID				0x90000000
+/* FunctionCode */
+#define FUNCTION_READ_RQBUFFER			0x0801
+#define FUNCTION_WRITE_WQBUFFER			0x0802
+#define FUNCTION_CLEAR_RQBUFFER			0x0803
+#define FUNCTION_CLEAR_WQBUFFER			0x0804
+#define FUNCTION_CLEAR_ALLQBUFFER		0x0805
+#define FUNCTION_RETURN_CODE_3F			0x0806
+#define FUNCTION_SAY_HELLO			0x0807
+#define FUNCTION_SAY_GOODBYE			0x0808
+#define FUNCTION_FLUSH_ADAPTER_CACHE		0x0809
+/* ARECA IO CONTROL CODE*/
+#define ARCMSR_MESSAGE_READ_RQBUFFER       \
+	ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER
+#define ARCMSR_MESSAGE_WRITE_WQBUFFER      \
+	ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER
+#define ARCMSR_MESSAGE_CLEAR_RQBUFFER      \
+	ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER
+#define ARCMSR_MESSAGE_CLEAR_WQBUFFER      \
+	ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER
+#define ARCMSR_MESSAGE_CLEAR_ALLQBUFFER    \
+	ARECA_SATA_RAID | FUNCTION_CLEAR_ALLQBUFFER
+#define ARCMSR_MESSAGE_RETURN_CODE_3F      \
+	ARECA_SATA_RAID | FUNCTION_RETURN_CODE_3F
+#define ARCMSR_MESSAGE_SAY_HELLO           \
+	ARECA_SATA_RAID | FUNCTION_SAY_HELLO
+#define ARCMSR_MESSAGE_SAY_GOODBYE         \
+	ARECA_SATA_RAID | FUNCTION_SAY_GOODBYE
+#define ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE \
+	ARECA_SATA_RAID | FUNCTION_FLUSH_ADAPTER_CACHE
+/* ARECA IOCTL ReturnCode */
+#define ARCMSR_MESSAGE_RETURNCODE_OK              0x00000001
+#define ARCMSR_MESSAGE_RETURNCODE_ERROR           0x00000006
+#define ARCMSR_MESSAGE_RETURNCODE_3F              0x0000003F
+/*
+*************************************************************
+**   structure for holding DMA address data
+*************************************************************
+*/
+#define IS_SG64_ADDR                0x01000000 /* bit24 */
+struct  SG32ENTRY
+{
+	uint32_t					length;
+	uint32_t					address;
+};
+struct  SG64ENTRY
+{
+ 	uint32_t					length;
+ 	uint32_t					address;
+ 	uint32_t					addresshigh;
+};
+struct SGENTRY_UNION
+{
+	union
+	{
+		struct SG32ENTRY            sg32entry;
+		struct SG64ENTRY            sg64entry;
+	}u;
+};
+/*
+********************************************************************
+**      Q Buffer of IOP Message Transfer
+********************************************************************
+*/
+struct QBUFFER
+{
+	uint32_t      data_len;
+	uint8_t       data[124];
+};
+/*
+*******************************************************************************
+**      FIRMWARE INFO
+*******************************************************************************
+*/
+struct FIRMWARE_INFO
+{
+	uint32_t      signature;                /*0, 00-03*/
+	uint32_t      request_len;              /*1, 04-07*/
+	uint32_t      numbers_queue;            /*2, 08-11*/
+	uint32_t      sdram_size;               /*3, 12-15*/
+	uint32_t      ide_channels;             /*4, 16-19*/
+	char          vendor[40];               /*5, 20-59*/
+	char          model[8];                 /*15, 60-67*/
+	char          firmware_ver[16];         /*17, 68-83*/
+	char          device_map[16];           /*21, 84-99*/
+};
+/* signature of set and get firmware config */
+#define ARCMSR_SIGNATURE_GET_CONFIG                   0x87974060
+#define ARCMSR_SIGNATURE_SET_CONFIG                   0x87974063
+/* message code of inbound message register */
+#define ARCMSR_INBOUND_MESG0_NOP                      0x00000000
+#define ARCMSR_INBOUND_MESG0_GET_CONFIG               0x00000001
+#define ARCMSR_INBOUND_MESG0_SET_CONFIG               0x00000002
+#define ARCMSR_INBOUND_MESG0_ABORT_CMD                0x00000003
+#define ARCMSR_INBOUND_MESG0_STOP_BGRB                0x00000004
+#define ARCMSR_INBOUND_MESG0_FLUSH_CACHE              0x00000005
+#define ARCMSR_INBOUND_MESG0_START_BGRB               0x00000006
+#define ARCMSR_INBOUND_MESG0_CHK331PENDING            0x00000007
+#define ARCMSR_INBOUND_MESG0_SYNC_TIMER               0x00000008
+/* doorbell interrupt generator */
+#define ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK           0x00000001
+#define ARCMSR_INBOUND_DRIVER_DATA_READ_OK            0x00000002
+#define ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK          0x00000001
+#define ARCMSR_OUTBOUND_IOP331_DATA_READ_OK           0x00000002
+/* ccb areca cdb flag */
+#define ARCMSR_CCBPOST_FLAG_SGL_BSIZE                 0x80000000
+#define ARCMSR_CCBPOST_FLAG_IAM_BIOS                  0x40000000
+#define ARCMSR_CCBREPLY_FLAG_IAM_BIOS                 0x40000000
+#define ARCMSR_CCBREPLY_FLAG_ERROR                    0x10000000
+/* outbound firmware ok */
+#define ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK             0x80000000
+/*
+*******************************************************************************
+**    ARECA SCSI COMMAND DESCRIPTOR BLOCK size 0x1F8 (504)
+*******************************************************************************
+*/
+struct ARCMSR_CDB
+{
+	uint8_t							Bus;
+	uint8_t							TargetID;
+	uint8_t							LUN;
+	uint8_t							Function;
+
+	uint8_t							CdbLength;
+	uint8_t							sgcount;
+	uint8_t							Flags;
+#define ARCMSR_CDB_FLAG_SGL_BSIZE          0x01
+#define ARCMSR_CDB_FLAG_BIOS               0x02
+#define ARCMSR_CDB_FLAG_WRITE              0x04
+#define ARCMSR_CDB_FLAG_SIMPLEQ            0x00
+#define ARCMSR_CDB_FLAG_HEADQ              0x08
+#define ARCMSR_CDB_FLAG_ORDEREDQ           0x10
+	uint8_t							Reserved1;
+
+	uint32_t						Context;
+	uint32_t						DataLength;
+
+	uint8_t							Cdb[16];
+
+	uint8_t							DeviceStatus;
+#define ARCMSR_DEV_CHECK_CONDITION          0x02
+#define ARCMSR_DEV_SELECT_TIMEOUT			0xF0
+#define ARCMSR_DEV_ABORTED				0xF1
+#define ARCMSR_DEV_INIT_FAIL				0xF2
+	uint8_t							SenseData[15];
+
+	union
+	{
+		struct SG32ENTRY                sg32entry[ARCMSR_MAX_SG_ENTRIES];
+		struct SG64ENTRY                sg64entry[ARCMSR_MAX_SG_ENTRIES];
+	} u;
+};
+/*
+*******************************************************************************
+**     Messaging Unit (MU) of the Intel R 80331 I/O processor (80331)
+*******************************************************************************
+*/
+struct MessageUnit
+{
+	uint32_t	resrved0[4];			/*0000 000F*/
+	uint32_t	inbound_msgaddr0;		/*0010 0013*/
+	uint32_t	inbound_msgaddr1;		/*0014 0017*/
+	uint32_t	outbound_msgaddr0;		/*0018 001B*/
+	uint32_t	outbound_msgaddr1;		/*001C 001F*/
+	uint32_t	inbound_doorbell;		/*0020 0023*/
+	uint32_t	inbound_intstatus;		/*0024 0027*/
+	uint32_t	inbound_intmask;		/*0028 002B*/
+	uint32_t	outbound_doorbell;		/*002C 002F*/
+	uint32_t	outbound_intstatus;		/*0030 0033*/
+	uint32_t	outbound_intmask;		/*0034 0037*/
+	uint32_t	reserved1[2];			/*0038 003F*/
+	uint32_t	inbound_queueport;		/*0040 0043*/
+	uint32_t	outbound_queueport;     	/*0044 0047*/
+	uint32_t	reserved2[2];			/*0048 004F*/
+	uint32_t	reserved3[492];			/*0050 07FF 492*/
+	uint32_t	reserved4[128];			/*0800 09FF 128*/
+	uint32_t	message_rwbuffer[256];		/*0a00 0DFF 256*/
+	uint32_t	message_wbuffer[32];		/*0E00 0E7F  32*/
+	uint32_t	reserved5[32];			/*0E80 0EFF  32*/
+	uint32_t	message_rbuffer[32];		/*0F00 0F7F  32*/
+	uint32_t	reserved6[32];			/*0F80 0FFF  32*/
+};
+/*
+*******************************************************************************
+**                 Adapter Control Block
+*******************************************************************************
+*/
+struct AdapterControlBlock
+{
+	struct pci_dev *		pdev;
+	struct Scsi_Host *		host;
+	unsigned long			vir2phy_offset;
+	/* Offset is used in making arc cdb physical to virtual calculations */
+	uint32_t			outbound_int_enable;
+
+	struct MessageUnit __iomem *		pmu;
+	/* message unit ATU inbound base address0 */
+
+	uint32_t			acb_flags;
+#define ACB_F_SCSISTOPADAPTER         0x0001
+#define ACB_F_MSG_STOP_BGRB           0x0002
+	/* stop RAID background rebuild */
+#define ACB_F_MSG_START_BGRB          0x0004
+	/* stop RAID background rebuild */
+#define ACB_F_IOPDATA_OVERFLOW        0x0008
+	/* iop message data rqbuffer overflow */
+#define ACB_F_MESSAGE_WQBUFFER_CLEARED  0x0010
+	/* message clear wqbuffer */
+#define ACB_F_MESSAGE_RQBUFFER_CLEARED  0x0020
+	/* message clear rqbuffer */
+#define ACB_F_MESSAGE_WQBUFFER_READED   0x0040
+#define ACB_F_BUS_RESET               0x0080
+#define ACB_F_IOP_INITED              0x0100
+	/* iop init */
+
+	struct CommandControlBlock *			pccb_pool[ARCMSR_MAX_FREECCB_NUM];
+	/* used for memory free */
+	struct list_head		ccb_free_list;
+	/* head of free ccb list */
+	atomic_t			ccboutstandingcount;
+
+	void *				dma_coherent;
+	/* dma_coherent used for memory free */
+	dma_addr_t			dma_coherent_handle;
+	/* dma_coherent_handle used for memory free */
+
+	uint8_t				rqbuffer[ARCMSR_MAX_QBUFFER];
+	/* data collection buffer for read from 80331 */
+	int32_t				rqbuf_firstindex;
+	/* first of read buffer  */
+	int32_t				rqbuf_lastindex;
+	/* last of read buffer   */
+	uint8_t				wqbuffer[ARCMSR_MAX_QBUFFER];
+	/* data collection buffer for write to 80331  */
+	int32_t				wqbuf_firstindex;
+	/* first of write buffer */
+	int32_t				wqbuf_lastindex;
+	/* last of write buffer  */
+	uint8_t				devstate[ARCMSR_MAX_TARGETID][ARCMSR_MAX_TARGETLUN];
+	/* id0 ..... id15, lun0...lun7 */
+#define ARECA_RAID_GONE               0x55
+#define ARECA_RAID_GOOD               0xaa
+	uint32_t			num_resets;
+	uint32_t			num_aborts;
+	uint32_t			firm_request_len;
+	uint32_t			firm_numbers_queue;
+	uint32_t			firm_sdram_size;
+	uint32_t			firm_hd_channels;
+	char				firm_model[12];
+	char				firm_version[20];
+};/* HW_DEVICE_EXTENSION */
+/*
+*******************************************************************************
+**                   Command Control Block
+**             this CCB length must be 32 bytes boundary
+*******************************************************************************
+*/
+struct CommandControlBlock
+{
+	struct ARCMSR_CDB		arcmsr_cdb;
+	/*
+	** 0-503 (size of CDB=504):
+	** arcmsr messenger scsi command descriptor size 504 bytes
+	*/
+	uint32_t			cdb_shifted_phyaddr;
+	/* 504-507 */
+	uint32_t			reserved1;
+	/* 508-511 */
+#if BITS_PER_LONG == 64
+	/*  ======================512+64 bytes========================  */
+	struct list_head		list;
+	/* 512-527 16 bytes next/prev ptrs for ccb lists */
+	struct scsi_cmnd *		pcmd;
+	/* 528-535 8 bytes pointer of linux scsi command */
+	struct AdapterControlBlock *	acb;
+	/* 536-543 8 bytes pointer of acb */
+
+	uint16_t			ccb_flags;
+	/* 544-545 */
+	#define		CCB_FLAG_READ			0x0000
+	#define		CCB_FLAG_WRITE			0x0001
+	#define		CCB_FLAG_ERROR			0x0002
+	#define		CCB_FLAG_FLUSHCACHE		0x0004
+	#define		CCB_FLAG_MASTER_ABORTED		0x0008
+	uint16_t			startdone;
+	/* 546-547 */
+	#define		ARCMSR_CCB_DONE			0x0000
+	#define		ARCMSR_CCB_START		0x55AA
+	#define		ARCMSR_CCB_ABORTED		0xAA55
+	#define		ARCMSR_CCB_ILLEGAL		0xFFFF
+	uint32_t			reserved2[7];
+	/* 548-551 552-555 556-559 560-563 564-567 568-571 572-575 */
+#else
+	/*  ======================512+32 bytes========================  */
+	struct list_head		list;
+	/* 512-519 8 bytes next/prev ptrs for ccb lists */
+	struct scsi_cmnd *		pcmd;
+	/* 520-523 4 bytes pointer of linux scsi command */
+	struct AdapterControlBlock *	acb;
+	/* 524-527 4 bytes pointer of acb */
+
+	uint16_t			ccb_flags;
+	/* 528-529 */
+	#define		CCB_FLAG_READ			0x0000
+	#define		CCB_FLAG_WRITE			0x0001
+	#define		CCB_FLAG_ERROR			0x0002
+	#define		CCB_FLAG_FLUSHCACHE		0x0004
+	#define		CCB_FLAG_MASTER_ABORTED		0x0008
+	uint16_t			startdone;
+	/* 530-531 */
+	#define		ARCMSR_CCB_DONE			0x0000
+	#define		ARCMSR_CCB_START		0x55AA
+	#define		ARCMSR_CCB_ABORTED		0xAA55
+	#define		ARCMSR_CCB_ILLEGAL		0xFFFF
+	uint32_t			reserved2[3];
+	/* 532-535 536-539 540-543 */
+#endif
+	/*  ==========================================================  */
+};
+/*
+*******************************************************************************
+**    ARECA SCSI sense data
+*******************************************************************************
+*/
+struct SENSE_DATA
+{
+	uint8_t				ErrorCode:7;
+#define SCSI_SENSE_CURRENT_ERRORS	0x70
+#define SCSI_SENSE_DEFERRED_ERRORS	0x71
+	uint8_t				Valid:1;
+	uint8_t				SegmentNumber;
+	uint8_t				SenseKey:4;
+	uint8_t				Reserved:1;
+	uint8_t				IncorrectLength:1;
+	uint8_t				EndOfMedia:1;
+	uint8_t				FileMark:1;
+	uint8_t				Information[4];
+	uint8_t				AdditionalSenseLength;
+	uint8_t				CommandSpecificInformation[4];
+	uint8_t				AdditionalSenseCode;
+	uint8_t				AdditionalSenseCodeQualifier;
+	uint8_t				FieldReplaceableUnitCode;
+	uint8_t				SenseKeySpecific[3];
+};
+/*
+*******************************************************************************
+**  Outbound Interrupt Status Register - OISR
+*******************************************************************************
+*/
+#define     ARCMSR_MU_OUTBOUND_INTERRUPT_STATUS_REG                 0x30
+#define     ARCMSR_MU_OUTBOUND_PCI_INT                              0x10
+#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INT                        0x08
+#define     ARCMSR_MU_OUTBOUND_DOORBELL_INT                         0x04
+#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INT                         0x02
+#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INT                         0x01
+#define     ARCMSR_MU_OUTBOUND_HANDLE_INT                 \
+                    (ARCMSR_MU_OUTBOUND_MESSAGE0_INT      \
+                     |ARCMSR_MU_OUTBOUND_MESSAGE1_INT     \
+                     |ARCMSR_MU_OUTBOUND_DOORBELL_INT     \
+                     |ARCMSR_MU_OUTBOUND_POSTQUEUE_INT    \
+                     |ARCMSR_MU_OUTBOUND_PCI_INT)
+/*
+*******************************************************************************
+**  Outbound Interrupt Mask Register - OIMR
+*******************************************************************************
+*/
+#define     ARCMSR_MU_OUTBOUND_INTERRUPT_MASK_REG                   0x34
+#define     ARCMSR_MU_OUTBOUND_PCI_INTMASKENABLE                    0x10
+#define     ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE              0x08
+#define     ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE               0x04
+#define     ARCMSR_MU_OUTBOUND_MESSAGE1_INTMASKENABLE               0x02
+#define     ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE               0x01
+#define     ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE                    0x1F
+
+extern void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb);
+extern struct class_device_attribute *arcmsr_host_attrs[];
+extern int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb);
+void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb);
+

drivers/scsi/arcmsr/arcmsr_attr.c

@@ -0,0 +1,381 @@
+/*
+*******************************************************************************
+**        O.S   : Linux
+**   FILE NAME  : arcmsr_attr.c
+**        BY    : Erich Chen
+**   Description: attributes exported to sysfs and device host
+*******************************************************************************
+** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
+**
+**     Web site: www.areca.com.tw
+**       E-mail: erich@areca.com.tw
+**
+** This program is free software; you can redistribute it and/or modify
+** it under the terms of the GNU General Public License version 2 as
+** published by the Free Software Foundation.
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*******************************************************************************
+** Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions
+** are met:
+** 1. Redistributions of source code must retain the above copyright
+**    notice, this list of conditions and the following disclaimer.
+** 2. Redistributions in binary form must reproduce the above copyright
+**    notice, this list of conditions and the following disclaimer in the
+**    documentation and/or other materials provided with the distribution.
+** 3. The name of the author may not be used to endorse or promote products
+**    derived from this software without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
+** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
+** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************
+** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
+**     Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
+*******************************************************************************
+*/
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport.h>
+#include "arcmsr.h"
+
+struct class_device_attribute *arcmsr_host_attrs[];
+
+static ssize_t
+arcmsr_sysfs_iop_message_read(struct kobject *kobj, char *buf, loff_t off,
+    size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	struct MessageUnit __iomem *reg = acb->pmu;
+	uint8_t *pQbuffer,*ptmpQbuffer;
+	int32_t allxfer_len = 0;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	/* do message unit read. */
+	ptmpQbuffer = (uint8_t *)buf;
+	while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
+		&& (allxfer_len < 1031)) {
+		pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
+		memcpy(ptmpQbuffer, pQbuffer, 1);
+		acb->rqbuf_firstindex++;
+		acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
+		ptmpQbuffer++;
+		allxfer_len++;
+	}
+	if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
+		struct QBUFFER __iomem * prbuffer = (struct QBUFFER __iomem *)
+					&reg->message_rbuffer;
+		uint8_t __iomem * iop_data = (uint8_t __iomem *)prbuffer->data;
+		int32_t iop_len;
+
+		acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
+		iop_len = readl(&prbuffer->data_len);
+		while (iop_len > 0) {
+			acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
+			acb->rqbuf_lastindex++;
+			acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
+			iop_data++;
+			iop_len--;
+		}
+		writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK,
+				&reg->inbound_doorbell);
+	}
+	return (allxfer_len);
+}
+
+static ssize_t
+arcmsr_sysfs_iop_message_write(struct kobject *kobj, char *buf, loff_t off,
+    size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
+	uint8_t *pQbuffer, *ptmpuserbuffer;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+	if (count > 1032)
+		return -EINVAL;
+	/* do message unit write. */
+	ptmpuserbuffer = (uint8_t *)buf;
+	user_len = (int32_t)count;
+	wqbuf_lastindex = acb->wqbuf_lastindex;
+	wqbuf_firstindex = acb->wqbuf_firstindex;
+	if (wqbuf_lastindex != wqbuf_firstindex) {
+		arcmsr_post_Qbuffer(acb);
+		return 0;	/*need retry*/
+	} else {
+		my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
+				&(ARCMSR_MAX_QBUFFER - 1);
+		if (my_empty_len >= user_len) {
+			while (user_len > 0) {
+				pQbuffer =
+				&acb->wqbuffer[acb->wqbuf_lastindex];
+				memcpy(pQbuffer, ptmpuserbuffer, 1);
+				acb->wqbuf_lastindex++;
+				acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
+				ptmpuserbuffer++;
+				user_len--;
+			}
+			if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
+				acb->acb_flags &=
+					~ACB_F_MESSAGE_WQBUFFER_CLEARED;
+				arcmsr_post_Qbuffer(acb);
+			}
+			return count;
+		} else {
+			return 0;	/*need retry*/
+		}
+	}
+}
+
+static ssize_t
+arcmsr_sysfs_iop_message_clear(struct kobject *kobj, char *buf, loff_t off,
+    size_t count)
+{
+	struct class_device *cdev = container_of(kobj,struct class_device,kobj);
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	struct MessageUnit __iomem *reg = acb->pmu;
+	uint8_t *pQbuffer;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
+	if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
+		acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
+		writel(ARCMSR_INBOUND_DRIVER_DATA_READ_OK
+				, &reg->inbound_doorbell);
+	}
+	acb->acb_flags |=
+		(ACB_F_MESSAGE_WQBUFFER_CLEARED
+		| ACB_F_MESSAGE_RQBUFFER_CLEARED
+		| ACB_F_MESSAGE_WQBUFFER_READED);
+	acb->rqbuf_firstindex = 0;
+	acb->rqbuf_lastindex = 0;
+	acb->wqbuf_firstindex = 0;
+	acb->wqbuf_lastindex = 0;
+	pQbuffer = acb->rqbuffer;
+	memset(pQbuffer, 0, sizeof (struct QBUFFER));
+	pQbuffer = acb->wqbuffer;
+	memset(pQbuffer, 0, sizeof (struct QBUFFER));
+	return 1;
+}
+
+static struct bin_attribute arcmsr_sysfs_message_read_attr = {
+	.attr = {
+		.name = "mu_read",
+		.mode = S_IRUSR ,
+		.owner = THIS_MODULE,
+	},
+	.size = 1032,
+	.read = arcmsr_sysfs_iop_message_read,
+};
+
+static struct bin_attribute arcmsr_sysfs_message_write_attr = {
+	.attr = {
+		.name = "mu_write",
+		.mode = S_IWUSR,
+		.owner = THIS_MODULE,
+	},
+	.size = 1032,
+	.write = arcmsr_sysfs_iop_message_write,
+};
+
+static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
+	.attr = {
+		.name = "mu_clear",
+		.mode = S_IWUSR,
+		.owner = THIS_MODULE,
+	},
+	.size = 1,
+	.write = arcmsr_sysfs_iop_message_clear,
+};
+
+int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb)
+{
+	struct Scsi_Host *host = acb->host;
+	int error;
+
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_read_attr);
+	if (error) {
+		printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n");
+		goto error_bin_file_message_read;
+	}
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_write_attr);
+	if (error) {
+		printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n");
+		goto error_bin_file_message_write;
+	}
+	error = sysfs_create_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_clear_attr);
+	if (error) {
+		printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n");
+		goto error_bin_file_message_clear;
+	}
+	return 0;
+error_bin_file_message_clear:
+	sysfs_remove_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_write_attr);
+error_bin_file_message_write:
+	sysfs_remove_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_read_attr);
+error_bin_file_message_read:
+	return error;
+}
+
+void
+arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb) {
+	struct Scsi_Host *host = acb->host;
+
+	sysfs_remove_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_clear_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_write_attr);
+	sysfs_remove_bin_file(&host->shost_classdev.kobj,
+				&arcmsr_sysfs_message_read_attr);
+}
+
+
+static ssize_t
+arcmsr_attr_host_driver_version(struct class_device *cdev, char *buf) {
+	return snprintf(buf, PAGE_SIZE,
+			"%s\n",
+			ARCMSR_DRIVER_VERSION);
+}
+
+static ssize_t
+arcmsr_attr_host_driver_posted_cmd(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			atomic_read(&acb->ccboutstandingcount));
+}
+
+static ssize_t
+arcmsr_attr_host_driver_reset(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->num_resets);
+}
+
+static ssize_t
+arcmsr_attr_host_driver_abort(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->num_aborts);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_model(struct class_device *cdev, char *buf) {
+    struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+	return snprintf(buf, PAGE_SIZE,
+			"%s\n",
+			acb->firm_model);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_version(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+
+	return snprintf(buf, PAGE_SIZE,
+			"%s\n",
+			acb->firm_version);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_request_len(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->firm_request_len);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_numbers_queue(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->firm_numbers_queue);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_sdram_size(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->firm_sdram_size);
+}
+
+static ssize_t
+arcmsr_attr_host_fw_hd_channels(struct class_device *cdev, char *buf) {
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
+
+	return snprintf(buf, PAGE_SIZE,
+			"%4d\n",
+			acb->firm_hd_channels);
+}
+
+static CLASS_DEVICE_ATTR(host_driver_version, S_IRUGO, arcmsr_attr_host_driver_version, NULL);
+static CLASS_DEVICE_ATTR(host_driver_posted_cmd, S_IRUGO, arcmsr_attr_host_driver_posted_cmd, NULL);
+static CLASS_DEVICE_ATTR(host_driver_reset, S_IRUGO, arcmsr_attr_host_driver_reset, NULL);
+static CLASS_DEVICE_ATTR(host_driver_abort, S_IRUGO, arcmsr_attr_host_driver_abort, NULL);
+static CLASS_DEVICE_ATTR(host_fw_model, S_IRUGO, arcmsr_attr_host_fw_model, NULL);
+static CLASS_DEVICE_ATTR(host_fw_version, S_IRUGO, arcmsr_attr_host_fw_version, NULL);
+static CLASS_DEVICE_ATTR(host_fw_request_len, S_IRUGO, arcmsr_attr_host_fw_request_len, NULL);
+static CLASS_DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_queue, NULL);
+static CLASS_DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL);
+static CLASS_DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL);
+
+struct class_device_attribute *arcmsr_host_attrs[] = {
+	&class_device_attr_host_driver_version,
+	&class_device_attr_host_driver_posted_cmd,
+	&class_device_attr_host_driver_reset,
+	&class_device_attr_host_driver_abort,
+	&class_device_attr_host_fw_model,
+	&class_device_attr_host_fw_version,
+	&class_device_attr_host_fw_request_len,
+	&class_device_attr_host_fw_numbers_queue,
+	&class_device_attr_host_fw_sdram_size,
+	&class_device_attr_host_fw_hd_channels,
+	NULL,
+};

drivers/scsi/dpt_i2o.c

@@ -46,7 +46,6 @@ MODULE_DESCRIPTION("Adaptec I2O RAID Driver");
 
 #include <linux/stat.h>
 #include <linux/slab.h>		/* for kmalloc() */
-#include <linux/config.h>	/* for CONFIG_PCI */
 #include <linux/pci.h>		/* for PCI support */
 #include <linux/proc_fs.h>
 #include <linux/blkdev.h>

drivers/scsi/fcal.c

@@ -248,8 +248,7 @@ int fcal_proc_info (struct Scsi_Host *host, char *buffer, char **start, off_t of
 				if (scd->id == target) {
 					SPRINTF ("  [AL-PA: %02x, Id: %02d, Port WWN: %08x%08x, Node WWN: %08x%08x]  ",
 						alpa, target, u1[0], u1[1], u2[0], u2[1]);
-					SPRINTF ("%s ", (scd->type < MAX_SCSI_DEVICE_CODE) ?
+					SPRINTF ("%s ", scsi_device_type(scd->type));
-						scsi_device_types[(short) scd->type] : "Unknown device");
 
 					for (j = 0; (j < 8) && (scd->vendor[j] >= 0x20); j++)
 						SPRINTF ("%c", scd->vendor[j]);

drivers/scsi/g_NCR5380.c

@@ -811,7 +811,6 @@ static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, c
 	struct NCR5380_hostdata *hostdata;
 #ifdef NCR5380_STATS
 	struct scsi_device *dev;
-	extern const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE];
 #endif
 
 	NCR5380_setup(scsi_ptr);
@@ -851,7 +850,7 @@ static int generic_NCR5380_proc_info(struct Scsi_Host *scsi_ptr, char *buffer, c
 		long tr = hostdata->time_read[dev->id] / HZ;
 		long tw = hostdata->time_write[dev->id] / HZ;
 
-		PRINTP("  T:%d %s " ANDP dev->id ANDP(dev->type < MAX_SCSI_DEVICE_CODE) ? scsi_device_types[(int) dev->type] : "Unknown");
+		PRINTP("  T:%d %s " ANDP dev->id ANDP scsi_device_type(dev->type));
 		for (i = 0; i < 8; i++)
 			if (dev->vendor[i] >= 0x20)
 				*(buffer + (len++)) = dev->vendor[i];

drivers/scsi/gvp11.c

@@ -47,7 +47,7 @@ void gvp11_setup (char *str, int *ints)
     gvp11_xfer_mask = ints[1];
 }
 
-static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
+static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
     unsigned short cntr = GVP11_DMAC_INT_ENABLE;
     unsigned long addr = virt_to_bus(cmd->SCp.ptr);
@@ -142,8 +142,8 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
     return 0;
 }
 
-static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
+static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
-		      int status)
+		     int status)
 {
     /* stop DMA */
     DMA(instance)->SP_DMA = 1;
@@ -341,7 +341,7 @@ release:
     return num_gvp11;
 }
 
-static int gvp11_bus_reset(Scsi_Cmnd *cmd)
+static int gvp11_bus_reset(struct scsi_cmnd *cmd)
 {
 	/* FIXME perform bus-specific reset */
 

drivers/scsi/gvp11.h

@@ -13,10 +13,6 @@
 
 int gvp11_detect(struct scsi_host_template *);
 int gvp11_release(struct Scsi_Host *);
-const char *wd33c93_info(void);
-int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
-int wd33c93_abort(Scsi_Cmnd *);
-int wd33c93_reset(Scsi_Cmnd *, unsigned int);
 
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN 2

drivers/scsi/hosts.c

@@ -265,6 +265,9 @@ static void scsi_host_dev_release(struct device *dev)
 		destroy_workqueue(shost->work_q);
 
 	scsi_destroy_command_freelist(shost);
+	if (shost->bqt)
+		blk_free_tags(shost->bqt);
+
 	kfree(shost->shost_data);
 
 	if (parent)
@@ -487,7 +490,9 @@ EXPORT_SYMBOL(scsi_is_host_device);
  * @work:	Work to queue for execution.
  *
  * Return value:
- * 	0 on success / != 0 for error
+ * 	1 - work queued for execution
+ *	0 - work is already queued
+ *	-EINVAL - work queue doesn't exist
  **/
 int scsi_queue_work(struct Scsi_Host *shost, struct work_struct *work)
 {

drivers/scsi/hptiop.c

@@ -15,7 +15,6 @@
  *
  * For more information, visit http://www.highpoint-tech.com
  */
-#include <linux/config.h>
 #include <linux/module.h>
 #include <linux/types.h>
 #include <linux/string.h>

drivers/scsi/ipr.c

@@ -175,6 +175,8 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"Qualified success"},
 	{0x01080000, 1, 1,
 	"FFFE: Soft device bus error recovered by the IOA"},
+	{0x01088100, 0, 1,
+	"4101: Soft device bus fabric error"},
 	{0x01170600, 0, 1,
 	"FFF9: Device sector reassign successful"},
 	{0x01170900, 0, 1,
@@ -225,6 +227,8 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"3109: IOA timed out a device command"},
 	{0x04088000, 0, 0,
 	"3120: SCSI bus is not operational"},
+	{0x04088100, 0, 1,
+	"4100: Hard device bus fabric error"},
 	{0x04118000, 0, 1,
 	"9000: IOA reserved area data check"},
 	{0x04118100, 0, 1,
@@ -273,6 +277,14 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"9091: Incorrect hardware configuration change has been detected"},
 	{0x04678000, 0, 1,
 	"9073: Invalid multi-adapter configuration"},
+	{0x04678100, 0, 1,
+	"4010: Incorrect connection between cascaded expanders"},
+	{0x04678200, 0, 1,
+	"4020: Connections exceed IOA design limits"},
+	{0x04678300, 0, 1,
+	"4030: Incorrect multipath connection"},
+	{0x04679000, 0, 1,
+	"4110: Unsupported enclosure function"},
 	{0x046E0000, 0, 1,
 	"FFF4: Command to logical unit failed"},
 	{0x05240000, 1, 0,
@@ -297,6 +309,8 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"9031: Array protection temporarily suspended, protection resuming"},
 	{0x06040600, 0, 1,
 	"9040: Array protection temporarily suspended, protection resuming"},
+	{0x06288000, 0, 1,
+	"3140: Device bus not ready to ready transition"},
 	{0x06290000, 0, 1,
 	"FFFB: SCSI bus was reset"},
 	{0x06290500, 0, 0,
@@ -319,6 +333,16 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"3150: SCSI bus configuration error"},
 	{0x06678100, 0, 1,
 	"9074: Asymmetric advanced function disk configuration"},
+	{0x06678300, 0, 1,
+	"4040: Incomplete multipath connection between IOA and enclosure"},
+	{0x06678400, 0, 1,
+	"4041: Incomplete multipath connection between enclosure and device"},
+	{0x06678500, 0, 1,
+	"9075: Incomplete multipath connection between IOA and remote IOA"},
+	{0x06678600, 0, 1,
+	"9076: Configuration error, missing remote IOA"},
+	{0x06679100, 0, 1,
+	"4050: Enclosure does not support a required multipath function"},
 	{0x06690200, 0, 1,
 	"9041: Array protection temporarily suspended"},
 	{0x06698200, 0, 1,
@@ -331,6 +355,10 @@ struct ipr_error_table_t ipr_error_table[] = {
 	"9072: Link not operational transition"},
 	{0x066B8200, 0, 1,
 	"9032: Array exposed but still protected"},
+	{0x066B9100, 0, 1,
+	"4061: Multipath redundancy level got better"},
+	{0x066B9200, 0, 1,
+	"4060: Multipath redundancy level got worse"},
 	{0x07270000, 0, 0,
 	"Failure due to other device"},
 	{0x07278000, 0, 1,
@@ -4099,8 +4127,7 @@ static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
 {
 	struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
 
-	if ((be32_to_cpu(ioasa->ioasc_specific) &
+	if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
-	     (IPR_ADDITIONAL_STATUS_FMT | IPR_AUTOSENSE_VALID)) == 0)
 		return 0;
 
 	memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
@@ -4190,7 +4217,8 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
 	case IPR_IOASC_NR_INIT_CMD_REQUIRED:
 		break;
 	default:
-		scsi_cmd->result |= (DID_ERROR << 16);
+		if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
+			scsi_cmd->result |= (DID_ERROR << 16);
 		if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
 			res->needs_sync_complete = 1;
 		break;

drivers/scsi/ipr.h

@@ -36,8 +36,8 @@
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.1.3"
+#define IPR_DRIVER_VERSION "2.1.4"
-#define IPR_DRIVER_DATE "(March 29, 2006)"
+#define IPR_DRIVER_DATE "(August 2, 2006)"
 
 /*
  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
@@ -45,6 +45,7 @@
  *	This can be adjusted at runtime through sysfs device attributes.
  */
 #define IPR_MAX_CMD_PER_LUN				6
+#define IPR_MAX_CMD_PER_ATA_LUN			1
 
 /*
  * IPR_NUM_BASE_CMD_BLKS: This defines the maximum number of
@@ -106,7 +107,7 @@
 #define IPR_IOA_BUS						0xff
 #define IPR_IOA_TARGET					0xff
 #define IPR_IOA_LUN						0xff
-#define IPR_MAX_NUM_BUSES				8
+#define IPR_MAX_NUM_BUSES				16
 #define IPR_MAX_BUS_TO_SCAN				IPR_MAX_NUM_BUSES
 
 #define IPR_NUM_RESET_RELOAD_RETRIES		3
@@ -145,6 +146,7 @@
 #define	IPR_LUN_RESET					0x40
 #define	IPR_TARGET_RESET					0x20
 #define	IPR_BUS_RESET					0x10
+#define	IPR_ATA_PHY_RESET					0x80
 #define IPR_ID_HOST_RR_Q				0xC4
 #define IPR_QUERY_IOA_CONFIG				0xC5
 #define IPR_CANCEL_ALL_REQUESTS			0xCE
@@ -295,7 +297,11 @@ struct ipr_std_inq_data {
 }__attribute__ ((packed));
 
 struct ipr_config_table_entry {
-	u8 service_level;
+	u8 proto;
+#define IPR_PROTO_SATA			0x02
+#define IPR_PROTO_SATA_ATAPI		0x03
+#define IPR_PROTO_SAS_STP		0x06
+#define IPR_PROTO_SAS_STP_ATAPI	0x07
 	u8 array_id;
 	u8 flags;
 #define IPR_IS_IOA_RESOURCE	0x80
@@ -307,6 +313,7 @@ struct ipr_config_table_entry {
 #define IPR_SUBTYPE_AF_DASD			0
 #define IPR_SUBTYPE_GENERIC_SCSI	1
 #define IPR_SUBTYPE_VOLUME_SET		2
+#define IPR_SUBTYPE_GENERIC_ATA	4
 
 #define IPR_QUEUEING_MODEL(res)	((((res)->cfgte.flags) & 0x70) >> 4)
 #define IPR_QUEUE_FROZEN_MODEL	0
@@ -350,6 +357,7 @@ struct ipr_cmd_pkt {
 #define IPR_RQTYPE_SCSICDB		0x00
 #define IPR_RQTYPE_IOACMD		0x01
 #define IPR_RQTYPE_HCAM			0x02
+#define IPR_RQTYPE_ATA_PASSTHRU	0x04
 
 	u8 luntar_luntrn;
 
@@ -373,6 +381,37 @@ struct ipr_cmd_pkt {
 	__be16 timeout;
 }__attribute__ ((packed, aligned(4)));
 
+struct ipr_ioarcb_ata_regs {
+	u8 flags;
+#define IPR_ATA_FLAG_PACKET_CMD			0x80
+#define IPR_ATA_FLAG_XFER_TYPE_DMA			0x40
+#define IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION	0x20
+	u8 reserved[3];
+
+	__be16 data;
+	u8 feature;
+	u8 nsect;
+	u8 lbal;
+	u8 lbam;
+	u8 lbah;
+	u8 device;
+	u8 command;
+	u8 reserved2[3];
+	u8 hob_feature;
+	u8 hob_nsect;
+	u8 hob_lbal;
+	u8 hob_lbam;
+	u8 hob_lbah;
+	u8 ctl;
+}__attribute__ ((packed, aligned(4)));
+
+struct ipr_ioarcb_add_data {
+	union {
+		struct ipr_ioarcb_ata_regs regs;
+		__be32 add_cmd_parms[10];
+	}u;
+}__attribute__ ((packed, aligned(4)));
+
 /* IOA Request Control Block    128 bytes  */
 struct ipr_ioarcb {
 	__be32 ioarcb_host_pci_addr;
@@ -397,7 +436,7 @@ struct ipr_ioarcb {
 	struct ipr_cmd_pkt cmd_pkt;
 
 	__be32 add_cmd_parms_len;
-	__be32 add_cmd_parms[10];
+	struct ipr_ioarcb_add_data add_data;
 }__attribute__((packed, aligned (4)));
 
 struct ipr_ioadl_desc {
@@ -433,6 +472,21 @@ struct ipr_ioasa_gpdd {
 	__be32 ioa_data[2];
 }__attribute__((packed, aligned (4)));
 
+struct ipr_ioasa_gata {
+	u8 error;
+	u8 nsect;		/* Interrupt reason */
+	u8 lbal;
+	u8 lbam;
+	u8 lbah;
+	u8 device;
+	u8 status;
+	u8 alt_status;	/* ATA CTL */
+	u8 hob_nsect;
+	u8 hob_lbal;
+	u8 hob_lbam;
+	u8 hob_lbah;
+}__attribute__((packed, aligned (4)));
+
 struct ipr_auto_sense {
 	__be16 auto_sense_len;
 	__be16 ioa_data_len;
@@ -466,6 +520,7 @@ struct ipr_ioasa {
 	__be32 ioasc_specific;	/* status code specific field */
 #define IPR_ADDITIONAL_STATUS_FMT		0x80000000
 #define IPR_AUTOSENSE_VALID			0x40000000
+#define IPR_ATA_DEVICE_WAS_RESET		0x20000000
 #define IPR_IOASC_SPECIFIC_MASK		0x00ffffff
 #define IPR_FIELD_POINTER_VALID		(0x80000000 >> 8)
 #define IPR_FIELD_POINTER_MASK		0x0000ffff
@@ -474,6 +529,7 @@ struct ipr_ioasa {
 		struct ipr_ioasa_vset vset;
 		struct ipr_ioasa_af_dasd dasd;
 		struct ipr_ioasa_gpdd gpdd;
+		struct ipr_ioasa_gata gata;
 	} u;
 
 	struct ipr_auto_sense auto_sense;
@@ -1307,6 +1363,22 @@ static inline int ipr_is_scsi_disk(struct ipr_resource_entry *res)
 		return 0;
 }
 
+/**
+ * ipr_is_gata - Determine if a resource is a generic ATA resource
+ * @res:	resource entry struct
+ *
+ * Return value:
+ * 	1 if GATA / 0 if not GATA
+ **/
+static inline int ipr_is_gata(struct ipr_resource_entry *res)
+{
+	if (!ipr_is_ioa_resource(res) &&
+	    IPR_RES_SUBTYPE(res) == IPR_SUBTYPE_GENERIC_ATA)
+		return 1;
+	else
+		return 0;
+}
+
 /**
  * ipr_is_naca_model - Determine if a resource is using NACA queueing model
  * @res:	resource entry struct

drivers/scsi/iscsi_tcp.h

@@ -31,23 +31,21 @@
 #define IN_PROGRESS_DDIGEST_RECV	0x3
 
 /* xmit state machine */
-#define	XMSTATE_IDLE			0x0
+#define XMSTATE_IDLE			0x0
-#define	XMSTATE_R_HDR			0x1
+#define XMSTATE_R_HDR			0x1
-#define	XMSTATE_W_HDR			0x2
+#define XMSTATE_W_HDR			0x2
-#define	XMSTATE_IMM_HDR			0x4
+#define XMSTATE_IMM_HDR			0x4
-#define	XMSTATE_IMM_DATA		0x8
+#define XMSTATE_IMM_DATA		0x8
-#define	XMSTATE_UNS_INIT		0x10
+#define XMSTATE_UNS_INIT		0x10
-#define	XMSTATE_UNS_HDR			0x20
+#define XMSTATE_UNS_HDR			0x20
-#define	XMSTATE_UNS_DATA		0x40
+#define XMSTATE_UNS_DATA		0x40
-#define	XMSTATE_SOL_HDR			0x80
+#define XMSTATE_SOL_HDR			0x80
-#define	XMSTATE_SOL_DATA		0x100
+#define XMSTATE_SOL_DATA		0x100
-#define	XMSTATE_W_PAD			0x200
+#define XMSTATE_W_PAD			0x200
-#define XMSTATE_DATA_DIGEST		0x400
+#define XMSTATE_W_RESEND_PAD		0x400
+#define XMSTATE_W_RESEND_DATA_DIGEST	0x800
 
-#define ISCSI_CONN_RCVBUF_MIN		262144
-#define ISCSI_CONN_SNDBUF_MIN		262144
 #define ISCSI_PAD_LEN			4
-#define ISCSI_R2T_MAX			16
 #define ISCSI_SG_TABLESIZE		SG_ALL
 #define ISCSI_TCP_MAX_CMD_LEN		16
 
@@ -85,9 +83,6 @@ struct iscsi_tcp_conn {
 	/* iSCSI connection-wide sequencing */
 	int			hdr_size;	/* PDU header size */
 
-	struct crypto_hash	*rx_tfm;	/* CRC32C (Rx) */
-	struct hash_desc	data_rx_hash;	/* CRC32C (Rx) for data */
-
 	/* control data */
 	struct iscsi_tcp_recv	in;		/* TCP receive context */
 	int			in_progress;	/* connection state machine */
@@ -97,9 +92,9 @@ struct iscsi_tcp_conn {
 	void			(*old_state_change)(struct sock *);
 	void			(*old_write_space)(struct sock *);
 
-	/* xmit */
+	/* data and header digests */
-	struct crypto_hash	*tx_tfm;	/* CRC32C (Tx) */
+	struct hash_desc	tx_hash;	/* CRC32C (Tx) */
-	struct hash_desc	data_tx_hash;	/* CRC32C (Tx) for data */
+	struct hash_desc	rx_hash;	/* CRC32C (Rx) */
 
 	/* MIB custom statistics */
 	uint32_t		sendpage_failures_cnt;
@@ -158,19 +153,15 @@ struct iscsi_tcp_cmd_task {
 	struct scatterlist	*bad_sg;		/* assert statement */
 	int			sg_count;		/* SG's to process  */
 	uint32_t		exp_r2tsn;
-	int			r2t_data_count;		/* R2T Data-Out bytes */
 	int			data_offset;
 	struct iscsi_r2t_info	*r2t;			/* in progress R2T    */
 	struct iscsi_queue	r2tpool;
 	struct kfifo		*r2tqueue;
 	struct iscsi_r2t_info	**r2ts;
-	uint32_t		datadigest;		/* for recover digest */
 	int			digest_count;
 	uint32_t		immdigest;		/* for imm data */
 	struct iscsi_buf	immbuf;			/* for imm data digest */
-	struct iscsi_data_task	*dtask;		/* data task in progress*/
 	struct iscsi_data_task	unsol_dtask;	/* unsol data task */
-	int			digest_offset;	/* for partial buff digest */
 };
 
 #endif /* ISCSI_H */

drivers/scsi/libata-eh.c

@@ -32,7 +32,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/kernel.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>

drivers/scsi/libiscsi.c

@@ -68,8 +68,7 @@ iscsi_check_assign_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
 EXPORT_SYMBOL_GPL(iscsi_check_assign_cmdsn);
 
 void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *ctask,
-				   struct iscsi_data *hdr,
+				   struct iscsi_data *hdr)
-				   int transport_data_cnt)
 {
 	struct iscsi_conn *conn = ctask->conn;
 
@@ -82,14 +81,12 @@ void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *ctask,
 
 	hdr->itt = ctask->hdr->itt;
 	hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
-
+	hdr->offset = cpu_to_be32(ctask->unsol_offset);
-	hdr->offset = cpu_to_be32(ctask->total_length -
-				  transport_data_cnt -
-				  ctask->unsol_count);
 
 	if (ctask->unsol_count > conn->max_xmit_dlength) {
 		hton24(hdr->dlength, conn->max_xmit_dlength);
 		ctask->data_count = conn->max_xmit_dlength;
+		ctask->unsol_offset += ctask->data_count;
 		hdr->flags = 0;
 	} else {
 		hton24(hdr->dlength, ctask->unsol_count);
@@ -125,6 +122,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
         memcpy(hdr->cdb, sc->cmnd, sc->cmd_len);
         memset(&hdr->cdb[sc->cmd_len], 0, MAX_COMMAND_SIZE - sc->cmd_len);
 
+	ctask->data_count = 0;
 	if (sc->sc_data_direction == DMA_TO_DEVICE) {
 		hdr->flags |= ISCSI_FLAG_CMD_WRITE;
 		/*
@@ -143,6 +141,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 		 */
 		ctask->imm_count = 0;
 		ctask->unsol_count = 0;
+		ctask->unsol_offset = 0;
 		ctask->unsol_datasn = 0;
 
 		if (session->imm_data_en) {
@@ -156,9 +155,12 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 		} else
 			zero_data(ctask->hdr->dlength);
 
-		if (!session->initial_r2t_en)
+		if (!session->initial_r2t_en) {
 			ctask->unsol_count = min(session->first_burst,
 				ctask->total_length) - ctask->imm_count;
+			ctask->unsol_offset = ctask->imm_count;
+		}
+
 		if (!ctask->unsol_count)
 			/* No unsolicit Data-Out's */
 			ctask->hdr->flags |= ISCSI_FLAG_CMD_FINAL;
@@ -177,25 +179,51 @@ EXPORT_SYMBOL_GPL(iscsi_prep_scsi_cmd_pdu);
 
 /**
  * iscsi_complete_command - return command back to scsi-ml
- * @session: iscsi session
  * @ctask: iscsi cmd task
  *
  * Must be called with session lock.
  * This function returns the scsi command to scsi-ml and returns
  * the cmd task to the pool of available cmd tasks.
  */
-static void iscsi_complete_command(struct iscsi_session *session,
+static void iscsi_complete_command(struct iscsi_cmd_task *ctask)
-				   struct iscsi_cmd_task *ctask)
 {
+	struct iscsi_session *session = ctask->conn->session;
 	struct scsi_cmnd *sc = ctask->sc;
 
 	ctask->state = ISCSI_TASK_COMPLETED;
 	ctask->sc = NULL;
+	/* SCSI eh reuses commands to verify us */
+	sc->SCp.ptr = NULL;
 	list_del_init(&ctask->running);
 	__kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
 	sc->scsi_done(sc);
 }
 
+static void __iscsi_get_ctask(struct iscsi_cmd_task *ctask)
+{
+	atomic_inc(&ctask->refcount);
+}
+
+static void iscsi_get_ctask(struct iscsi_cmd_task *ctask)
+{
+	spin_lock_bh(&ctask->conn->session->lock);
+	__iscsi_get_ctask(ctask);
+	spin_unlock_bh(&ctask->conn->session->lock);
+}
+
+static void __iscsi_put_ctask(struct iscsi_cmd_task *ctask)
+{
+	if (atomic_dec_and_test(&ctask->refcount))
+		iscsi_complete_command(ctask);
+}
+
+static void iscsi_put_ctask(struct iscsi_cmd_task *ctask)
+{
+	spin_lock_bh(&ctask->conn->session->lock);
+	__iscsi_put_ctask(ctask);
+	spin_unlock_bh(&ctask->conn->session->lock);
+}
+
 /**
  * iscsi_cmd_rsp - SCSI Command Response processing
  * @conn: iscsi connection
@@ -272,7 +300,7 @@ out:
 		   (long)sc, sc->result, ctask->itt);
 	conn->scsirsp_pdus_cnt++;
 
-	iscsi_complete_command(conn->session, ctask);
+	__iscsi_put_ctask(ctask);
 	return rc;
 }
 
@@ -295,6 +323,30 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
 	wake_up(&conn->ehwait);
 }
 
+static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
+			       char *data, int datalen)
+{
+	struct iscsi_reject *reject = (struct iscsi_reject *)hdr;
+	struct iscsi_hdr rejected_pdu;
+	uint32_t itt;
+
+	conn->exp_statsn = be32_to_cpu(reject->statsn) + 1;
+
+	if (reject->reason == ISCSI_REASON_DATA_DIGEST_ERROR) {
+		if (ntoh24(reject->dlength) > datalen)
+			return ISCSI_ERR_PROTO;
+
+		if (ntoh24(reject->dlength) >= sizeof(struct iscsi_hdr)) {
+			memcpy(&rejected_pdu, data, sizeof(struct iscsi_hdr));
+			itt = rejected_pdu.itt & ISCSI_ITT_MASK;
+			printk(KERN_ERR "itt 0x%x had pdu (op 0x%x) rejected "
+				"due to DataDigest error.\n", itt,
+				rejected_pdu.opcode);
+		}
+	}
+	return 0;
+}
+
 /**
  * __iscsi_complete_pdu - complete pdu
  * @conn: iscsi conn
@@ -336,7 +388,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			BUG_ON((void*)ctask != ctask->sc->SCp.ptr);
 			if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
 				conn->scsirsp_pdus_cnt++;
-				iscsi_complete_command(session, ctask);
+				__iscsi_put_ctask(ctask);
 			}
 			break;
 		case ISCSI_OP_R2T:
@@ -406,6 +458,11 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			break;
 		}
 	} else if (itt == ISCSI_RESERVED_TAG) {
+		rc = iscsi_check_assign_cmdsn(session,
+					     (struct iscsi_nopin*)hdr);
+		if (rc)
+			goto done;
+
 		switch(opcode) {
 		case ISCSI_OP_NOOP_IN:
 			if (datalen) {
@@ -413,11 +470,6 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 				break;
 			}
 
-			rc = iscsi_check_assign_cmdsn(session,
-						 (struct iscsi_nopin*)hdr);
-			if (rc)
-				break;
-
 			if (hdr->ttt == ISCSI_RESERVED_TAG)
 				break;
 
@@ -425,7 +477,8 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 				rc = ISCSI_ERR_CONN_FAILED;
 			break;
 		case ISCSI_OP_REJECT:
-			/* we need sth like iscsi_reject_rsp()*/
+			rc = iscsi_handle_reject(conn, hdr, data, datalen);
+			break;
 		case ISCSI_OP_ASYNC_EVENT:
 			conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 			/* we need sth like iscsi_async_event_rsp() */
@@ -561,7 +614,9 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
 	BUG_ON(conn->ctask && conn->mtask);
 
 	if (conn->ctask) {
+		iscsi_get_ctask(conn->ctask);
 		rc = tt->xmit_cmd_task(conn, conn->ctask);
+		iscsi_put_ctask(conn->ctask);
 		if (rc)
 			goto again;
 		/* done with this in-progress ctask */
@@ -602,12 +657,19 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
 					 struct iscsi_cmd_task, running);
 		conn->ctask->state = ISCSI_TASK_RUNNING;
 		list_move_tail(conn->xmitqueue.next, &conn->run_list);
+		__iscsi_get_ctask(conn->ctask);
 		spin_unlock_bh(&conn->session->lock);
 
 		rc = tt->xmit_cmd_task(conn, conn->ctask);
 		if (rc)
 			goto again;
+
 		spin_lock_bh(&conn->session->lock);
+		__iscsi_put_ctask(conn->ctask);
+		if (rc) {
+			spin_unlock_bh(&conn->session->lock);
+			goto again;
+		}
 	}
 	spin_unlock_bh(&conn->session->lock);
 	/* done with this ctask */
@@ -657,6 +719,7 @@ enum {
 	FAILURE_SESSION_FAILED,
 	FAILURE_SESSION_FREED,
 	FAILURE_WINDOW_CLOSED,
+	FAILURE_OOM,
 	FAILURE_SESSION_TERMINATE,
 	FAILURE_SESSION_IN_RECOVERY,
 	FAILURE_SESSION_RECOVERY_TIMEOUT,
@@ -672,6 +735,7 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
 	sc->scsi_done = done;
 	sc->result = 0;
+	sc->SCp.ptr = NULL;
 
 	host = sc->device->host;
 	session = iscsi_hostdata(host->hostdata);
@@ -715,10 +779,15 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
 	conn = session->leadconn;
 
-	__kfifo_get(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
+	if (!__kfifo_get(session->cmdpool.queue, (void*)&ctask,
+			 sizeof(void*))) {
+		reason = FAILURE_OOM;
+		goto reject;
+	}
 	sc->SCp.phase = session->age;
 	sc->SCp.ptr = (char *)ctask;
 
+	atomic_set(&ctask->refcount, 1);
 	ctask->state = ISCSI_TASK_PENDING;
 	ctask->mtask = NULL;
 	ctask->conn = conn;
@@ -731,9 +800,10 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
 	list_add_tail(&ctask->running, &conn->xmitqueue);
 	debug_scsi(
-	       "ctask enq [%s cid %d sc %lx itt 0x%x len %d cmdsn %d win %d]\n",
+	       "ctask enq [%s cid %d sc %p cdb 0x%x itt 0x%x len %d cmdsn %d "
+		"win %d]\n",
 		sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
-		conn->id, (long)sc, ctask->itt, sc->request_bufflen,
+		conn->id, sc, sc->cmnd[0], ctask->itt, sc->request_bufflen,
 		session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
 	spin_unlock(&session->lock);
 
@@ -1061,16 +1131,30 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 
 	sc->result = err;
 	sc->resid = sc->request_bufflen;
-	iscsi_complete_command(conn->session, ctask);
+	/* release ref from queuecommand */
+	__iscsi_put_ctask(ctask);
 }
 
 int iscsi_eh_abort(struct scsi_cmnd *sc)
 {
-	struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
+	struct iscsi_cmd_task *ctask;
-	struct iscsi_conn *conn = ctask->conn;
+	struct iscsi_conn *conn;
-	struct iscsi_session *session = conn->session;
+	struct iscsi_session *session;
 	int rc;
 
+	/*
+	 * if session was ISCSI_STATE_IN_RECOVERY then we may not have
+	 * got the command.
+	 */
+	if (!sc->SCp.ptr) {
+		debug_scsi("sc never reached iscsi layer or it completed.\n");
+		return SUCCESS;
+	}
+
+	ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
+	conn = ctask->conn;
+	session = conn->session;
+
 	conn->eh_abort_cnt++;
 	debug_scsi("aborting [sc %p itt 0x%x]\n", sc, ctask->itt);
 
@@ -1520,11 +1604,19 @@ int iscsi_conn_start(struct iscsi_cls_conn *cls_conn)
 	struct iscsi_conn *conn = cls_conn->dd_data;
 	struct iscsi_session *session = conn->session;
 
-	if (session == NULL) {
+	if (!session) {
 		printk(KERN_ERR "iscsi: can't start unbound connection\n");
 		return -EPERM;
 	}
 
+	if ((session->imm_data_en || !session->initial_r2t_en) &&
+	     session->first_burst > session->max_burst) {
+		printk("iscsi: invalid burst lengths: "
+		       "first_burst %d max_burst %d\n",
+		       session->first_burst, session->max_burst);
+		return -EINVAL;
+	}
+
 	spin_lock_bh(&session->lock);
 	conn->c_stage = ISCSI_CONN_STARTED;
 	session->state = ISCSI_STATE_LOGGED_IN;

drivers/scsi/libsas/Kconfig

@@ -0,0 +1,39 @@
+#
+# Kernel configuration file for the SAS Class
+#
+# Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+# Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+#
+# This file is licensed under GPLv2.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 of the
+# License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA
+#
+
+config SCSI_SAS_LIBSAS
+	tristate "SAS Domain Transport Attributes"
+	depends on SCSI
+	select SCSI_SAS_ATTRS
+	help
+	  This provides transport specific helpers for SAS drivers which
+	  use the domain device construct (like the aic94xxx).
+
+config SCSI_SAS_LIBSAS_DEBUG
+	bool "Compile the SAS Domain Transport Attributes in debug mode"
+	default y
+	depends on SCSI_SAS_LIBSAS
+	help
+		Compiles the SAS Layer in debug mode.  In debug mode, the
+		SAS Layer prints diagnostic and debug messages.

drivers/scsi/libsas/Makefile

@@ -0,0 +1,36 @@
+#
+# Kernel Makefile for the libsas helpers
+#
+# Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+# Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+#
+# This file is licensed under GPLv2.
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; version 2 of the
+# License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA
+
+ifeq ($(CONFIG_SCSI_SAS_LIBSAS_DEBUG),y)
+	EXTRA_CFLAGS += -DSAS_DEBUG
+endif
+
+obj-$(CONFIG_SCSI_SAS_LIBSAS) += libsas.o
+libsas-y +=  sas_init.o     \
+		sas_phy.o      \
+		sas_port.o     \
+		sas_event.o    \
+		sas_dump.o     \
+		sas_discover.o \
+		sas_expander.o \
+		sas_scsi_host.o

drivers/scsi/libsas/sas_discover.c

@@ -0,0 +1,749 @@
+/*
+ * Serial Attached SCSI (SAS) Discover process
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <linux/pci.h>
+#include <linux/scatterlist.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_eh.h>
+#include "sas_internal.h"
+
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+#include "../scsi_sas_internal.h"
+
+/* ---------- Basic task processing for discovery purposes ---------- */
+
+void sas_init_dev(struct domain_device *dev)
+{
+        INIT_LIST_HEAD(&dev->siblings);
+        INIT_LIST_HEAD(&dev->dev_list_node);
+        switch (dev->dev_type) {
+        case SAS_END_DEV:
+                break;
+        case EDGE_DEV:
+        case FANOUT_DEV:
+                INIT_LIST_HEAD(&dev->ex_dev.children);
+                break;
+        case SATA_DEV:
+        case SATA_PM:
+        case SATA_PM_PORT:
+                INIT_LIST_HEAD(&dev->sata_dev.children);
+                break;
+        default:
+                break;
+        }
+}
+
+static void sas_task_timedout(unsigned long _task)
+{
+	struct sas_task *task = (void *) _task;
+	unsigned long flags;
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (!(task->task_state_flags & SAS_TASK_STATE_DONE))
+		task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	complete(&task->completion);
+}
+
+static void sas_disc_task_done(struct sas_task *task)
+{
+	if (!del_timer(&task->timer))
+		return;
+	complete(&task->completion);
+}
+
+#define SAS_DEV_TIMEOUT 10
+
+/**
+ * sas_execute_task -- Basic task processing for discovery
+ * @task: the task to be executed
+ * @buffer: pointer to buffer to do I/O
+ * @size: size of @buffer
+ * @pci_dma_dir: PCI_DMA_...
+ */
+static int sas_execute_task(struct sas_task *task, void *buffer, int size,
+			    int pci_dma_dir)
+{
+	int res = 0;
+	struct scatterlist *scatter = NULL;
+	struct task_status_struct *ts = &task->task_status;
+	int num_scatter = 0;
+	int retries = 0;
+	struct sas_internal *i =
+		to_sas_internal(task->dev->port->ha->core.shost->transportt);
+
+	if (pci_dma_dir != PCI_DMA_NONE) {
+		scatter = kzalloc(sizeof(*scatter), GFP_KERNEL);
+		if (!scatter)
+			goto out;
+
+		sg_init_one(scatter, buffer, size);
+		num_scatter = 1;
+	}
+
+	task->task_proto = task->dev->tproto;
+	task->scatter = scatter;
+	task->num_scatter = num_scatter;
+	task->total_xfer_len = size;
+	task->data_dir = pci_dma_dir;
+	task->task_done = sas_disc_task_done;
+
+	for (retries = 0; retries < 5; retries++) {
+		task->task_state_flags = SAS_TASK_STATE_PENDING;
+		init_completion(&task->completion);
+
+		task->timer.data = (unsigned long) task;
+		task->timer.function = sas_task_timedout;
+		task->timer.expires = jiffies + SAS_DEV_TIMEOUT*HZ;
+		add_timer(&task->timer);
+
+		res = i->dft->lldd_execute_task(task, 1, GFP_KERNEL);
+		if (res) {
+			del_timer(&task->timer);
+			SAS_DPRINTK("executing SAS discovery task failed:%d\n",
+				    res);
+			goto ex_err;
+		}
+		wait_for_completion(&task->completion);
+		res = -ETASK;
+		if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
+			int res2;
+			SAS_DPRINTK("task aborted, flags:0x%x\n",
+				    task->task_state_flags);
+			res2 = i->dft->lldd_abort_task(task);
+			SAS_DPRINTK("came back from abort task\n");
+			if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
+				if (res2 == TMF_RESP_FUNC_COMPLETE)
+					continue; /* Retry the task */
+				else
+					goto ex_err;
+			}
+		}
+		if (task->task_status.stat == SAM_BUSY ||
+			   task->task_status.stat == SAM_TASK_SET_FULL ||
+			   task->task_status.stat == SAS_QUEUE_FULL) {
+			SAS_DPRINTK("task: q busy, sleeping...\n");
+			schedule_timeout_interruptible(HZ);
+		} else if (task->task_status.stat == SAM_CHECK_COND) {
+			struct scsi_sense_hdr shdr;
+
+			if (!scsi_normalize_sense(ts->buf, ts->buf_valid_size,
+						  &shdr)) {
+				SAS_DPRINTK("couldn't normalize sense\n");
+				continue;
+			}
+			if ((shdr.sense_key == 6 && shdr.asc == 0x29) ||
+			    (shdr.sense_key == 2 && shdr.asc == 4 &&
+			     shdr.ascq == 1)) {
+				SAS_DPRINTK("device %016llx LUN: %016llx "
+					    "powering up or not ready yet, "
+					    "sleeping...\n",
+					    SAS_ADDR(task->dev->sas_addr),
+					    SAS_ADDR(task->ssp_task.LUN));
+
+				schedule_timeout_interruptible(5*HZ);
+			} else if (shdr.sense_key == 1) {
+				res = 0;
+				break;
+			} else if (shdr.sense_key == 5) {
+				break;
+			} else {
+				SAS_DPRINTK("dev %016llx LUN: %016llx "
+					    "sense key:0x%x ASC:0x%x ASCQ:0x%x"
+					    "\n",
+					    SAS_ADDR(task->dev->sas_addr),
+					    SAS_ADDR(task->ssp_task.LUN),
+					    shdr.sense_key,
+					    shdr.asc, shdr.ascq);
+			}
+		} else if (task->task_status.resp != SAS_TASK_COMPLETE ||
+			   task->task_status.stat != SAM_GOOD) {
+			SAS_DPRINTK("task finished with resp:0x%x, "
+				    "stat:0x%x\n",
+				    task->task_status.resp,
+				    task->task_status.stat);
+			goto ex_err;
+		} else {
+			res = 0;
+			break;
+		}
+	}
+ex_err:
+	if (pci_dma_dir != PCI_DMA_NONE)
+		kfree(scatter);
+out:
+	return res;
+}
+
+/* ---------- Domain device discovery ---------- */
+
+/**
+ * sas_get_port_device -- Discover devices which caused port creation
+ * @port: pointer to struct sas_port of interest
+ *
+ * Devices directly attached to a HA port, have no parent.  This is
+ * how we know they are (domain) "root" devices.  All other devices
+ * do, and should have their "parent" pointer set appropriately as
+ * soon as a child device is discovered.
+ */
+static int sas_get_port_device(struct asd_sas_port *port)
+{
+	unsigned long flags;
+	struct asd_sas_phy *phy;
+	struct sas_rphy *rphy;
+	struct domain_device *dev;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	spin_lock_irqsave(&port->phy_list_lock, flags);
+	if (list_empty(&port->phy_list)) {
+		spin_unlock_irqrestore(&port->phy_list_lock, flags);
+		kfree(dev);
+		return -ENODEV;
+	}
+	phy = container_of(port->phy_list.next, struct asd_sas_phy, port_phy_el);
+	spin_lock(&phy->frame_rcvd_lock);
+	memcpy(dev->frame_rcvd, phy->frame_rcvd, min(sizeof(dev->frame_rcvd),
+					     (size_t)phy->frame_rcvd_size));
+	spin_unlock(&phy->frame_rcvd_lock);
+	spin_unlock_irqrestore(&port->phy_list_lock, flags);
+
+	if (dev->frame_rcvd[0] == 0x34 && port->oob_mode == SATA_OOB_MODE) {
+		struct dev_to_host_fis *fis =
+			(struct dev_to_host_fis *) dev->frame_rcvd;
+		if (fis->interrupt_reason == 1 && fis->lbal == 1 &&
+		    fis->byte_count_low==0x69 && fis->byte_count_high == 0x96
+		    && (fis->device & ~0x10) == 0)
+			dev->dev_type = SATA_PM;
+		else
+			dev->dev_type = SATA_DEV;
+		dev->tproto = SATA_PROTO;
+	} else {
+		struct sas_identify_frame *id =
+			(struct sas_identify_frame *) dev->frame_rcvd;
+		dev->dev_type = id->dev_type;
+		dev->iproto = id->initiator_bits;
+		dev->tproto = id->target_bits;
+	}
+
+	sas_init_dev(dev);
+
+	switch (dev->dev_type) {
+	case SAS_END_DEV:
+		rphy = sas_end_device_alloc(port->port);
+		break;
+	case EDGE_DEV:
+		rphy = sas_expander_alloc(port->port,
+					  SAS_EDGE_EXPANDER_DEVICE);
+		break;
+	case FANOUT_DEV:
+		rphy = sas_expander_alloc(port->port,
+					  SAS_FANOUT_EXPANDER_DEVICE);
+		break;
+	case SATA_DEV:
+	default:
+		printk("ERROR: Unidentified device type %d\n", dev->dev_type);
+		rphy = NULL;
+		break;
+	}
+
+	if (!rphy) {
+		kfree(dev);
+		return -ENODEV;
+	}
+	rphy->identify.phy_identifier = phy->phy->identify.phy_identifier;
+	memcpy(dev->sas_addr, port->attached_sas_addr, SAS_ADDR_SIZE);
+	sas_fill_in_rphy(dev, rphy);
+	sas_hash_addr(dev->hashed_sas_addr, dev->sas_addr);
+	port->port_dev = dev;
+	dev->port = port;
+	dev->linkrate = port->linkrate;
+	dev->min_linkrate = port->linkrate;
+	dev->max_linkrate = port->linkrate;
+	dev->pathways = port->num_phys;
+	memset(port->disc.fanout_sas_addr, 0, SAS_ADDR_SIZE);
+	memset(port->disc.eeds_a, 0, SAS_ADDR_SIZE);
+	memset(port->disc.eeds_b, 0, SAS_ADDR_SIZE);
+	port->disc.max_level = 0;
+
+	dev->rphy = rphy;
+	spin_lock(&port->dev_list_lock);
+	list_add_tail(&dev->dev_list_node, &port->dev_list);
+	spin_unlock(&port->dev_list_lock);
+
+	return 0;
+}
+
+/* ---------- Discover and Revalidate ---------- */
+
+/* ---------- SATA ---------- */
+
+static void sas_get_ata_command_set(struct domain_device *dev)
+{
+	struct dev_to_host_fis *fis =
+		(struct dev_to_host_fis *) dev->frame_rcvd;
+
+	if ((fis->sector_count == 1 && /* ATA */
+	     fis->lbal         == 1 &&
+	     fis->lbam         == 0 &&
+	     fis->lbah         == 0 &&
+	     fis->device       == 0)
+	    ||
+	    (fis->sector_count == 0 && /* CE-ATA (mATA) */
+	     fis->lbal         == 0 &&
+	     fis->lbam         == 0xCE &&
+	     fis->lbah         == 0xAA &&
+	     (fis->device & ~0x10) == 0))
+
+		dev->sata_dev.command_set = ATA_COMMAND_SET;
+
+	else if ((fis->interrupt_reason == 1 &&	/* ATAPI */
+		  fis->lbal             == 1 &&
+		  fis->byte_count_low   == 0x14 &&
+		  fis->byte_count_high  == 0xEB &&
+		  (fis->device & ~0x10) == 0))
+
+		dev->sata_dev.command_set = ATAPI_COMMAND_SET;
+
+	else if ((fis->sector_count == 1 && /* SEMB */
+		  fis->lbal         == 1 &&
+		  fis->lbam         == 0x3C &&
+		  fis->lbah         == 0xC3 &&
+		  fis->device       == 0)
+		||
+		 (fis->interrupt_reason == 1 &&	/* SATA PM */
+		  fis->lbal             == 1 &&
+		  fis->byte_count_low   == 0x69 &&
+		  fis->byte_count_high  == 0x96 &&
+		  (fis->device & ~0x10) == 0))
+
+		/* Treat it as a superset? */
+		dev->sata_dev.command_set = ATAPI_COMMAND_SET;
+}
+
+/**
+ * sas_issue_ata_cmd -- Basic SATA command processing for discovery
+ * @dev: the device to send the command to
+ * @command: the command register
+ * @features: the features register
+ * @buffer: pointer to buffer to do I/O
+ * @size: size of @buffer
+ * @pci_dma_dir: PCI_DMA_...
+ */
+static int sas_issue_ata_cmd(struct domain_device *dev, u8 command,
+			     u8 features, void *buffer, int size,
+			     int pci_dma_dir)
+{
+	int res = 0;
+	struct sas_task *task;
+	struct dev_to_host_fis *d2h_fis = (struct dev_to_host_fis *)
+		&dev->frame_rcvd[0];
+
+	res = -ENOMEM;
+	task = sas_alloc_task(GFP_KERNEL);
+	if (!task)
+		goto out;
+
+	task->dev = dev;
+
+	task->ata_task.fis.command = command;
+	task->ata_task.fis.features = features;
+	task->ata_task.fis.device = d2h_fis->device;
+	task->ata_task.retry_count = 1;
+
+	res = sas_execute_task(task, buffer, size, pci_dma_dir);
+
+	sas_free_task(task);
+out:
+	return res;
+}
+
+static void sas_sata_propagate_sas_addr(struct domain_device *dev)
+{
+	unsigned long flags;
+	struct asd_sas_port *port = dev->port;
+	struct asd_sas_phy  *phy;
+
+	BUG_ON(dev->parent);
+
+	memcpy(port->attached_sas_addr, dev->sas_addr, SAS_ADDR_SIZE);
+	spin_lock_irqsave(&port->phy_list_lock, flags);
+	list_for_each_entry(phy, &port->phy_list, port_phy_el)
+		memcpy(phy->attached_sas_addr, dev->sas_addr, SAS_ADDR_SIZE);
+	spin_unlock_irqrestore(&port->phy_list_lock, flags);
+}
+
+#define ATA_IDENTIFY_DEV         0xEC
+#define ATA_IDENTIFY_PACKET_DEV  0xA1
+#define ATA_SET_FEATURES         0xEF
+#define ATA_FEATURE_PUP_STBY_SPIN_UP 0x07
+
+/**
+ * sas_discover_sata_dev -- discover a STP/SATA device (SATA_DEV)
+ * @dev: STP/SATA device of interest (ATA/ATAPI)
+ *
+ * The LLDD has already been notified of this device, so that we can
+ * send FISes to it.  Here we try to get IDENTIFY DEVICE or IDENTIFY
+ * PACKET DEVICE, if ATAPI device, so that the LLDD can fine-tune its
+ * performance for this device.
+ */
+static int sas_discover_sata_dev(struct domain_device *dev)
+{
+	int     res;
+	__le16  *identify_x;
+	u8      command;
+
+	identify_x = kzalloc(512, GFP_KERNEL);
+	if (!identify_x)
+		return -ENOMEM;
+
+	if (dev->sata_dev.command_set == ATA_COMMAND_SET) {
+		dev->sata_dev.identify_device = identify_x;
+		command = ATA_IDENTIFY_DEV;
+	} else {
+		dev->sata_dev.identify_packet_device = identify_x;
+		command = ATA_IDENTIFY_PACKET_DEV;
+	}
+
+	res = sas_issue_ata_cmd(dev, command, 0, identify_x, 512,
+				PCI_DMA_FROMDEVICE);
+	if (res)
+		goto out_err;
+
+	/* lives on the media? */
+	if (le16_to_cpu(identify_x[0]) & 4) {
+		/* incomplete response */
+		SAS_DPRINTK("sending SET FEATURE/PUP_STBY_SPIN_UP to "
+			    "dev %llx\n", SAS_ADDR(dev->sas_addr));
+		if (!le16_to_cpu(identify_x[83] & (1<<6)))
+			goto cont1;
+		res = sas_issue_ata_cmd(dev, ATA_SET_FEATURES,
+					ATA_FEATURE_PUP_STBY_SPIN_UP,
+					NULL, 0, PCI_DMA_NONE);
+		if (res)
+			goto cont1;
+
+		schedule_timeout_interruptible(5*HZ); /* More time? */
+		res = sas_issue_ata_cmd(dev, command, 0, identify_x, 512,
+					PCI_DMA_FROMDEVICE);
+		if (res)
+			goto out_err;
+	}
+cont1:
+	/* Get WWN */
+	if (dev->port->oob_mode != SATA_OOB_MODE) {
+		memcpy(dev->sas_addr, dev->sata_dev.rps_resp.rps.stp_sas_addr,
+		       SAS_ADDR_SIZE);
+	} else if (dev->sata_dev.command_set == ATA_COMMAND_SET &&
+		   (le16_to_cpu(dev->sata_dev.identify_device[108]) & 0xF000)
+		   == 0x5000) {
+		int i;
+
+		for (i = 0; i < 4; i++) {
+			dev->sas_addr[2*i] =
+	     (le16_to_cpu(dev->sata_dev.identify_device[108+i]) & 0xFF00) >> 8;
+			dev->sas_addr[2*i+1] =
+	      le16_to_cpu(dev->sata_dev.identify_device[108+i]) & 0x00FF;
+		}
+	}
+	sas_hash_addr(dev->hashed_sas_addr, dev->sas_addr);
+	if (!dev->parent)
+		sas_sata_propagate_sas_addr(dev);
+
+	/* XXX Hint: register this SATA device with SATL.
+	   When this returns, dev->sata_dev->lu is alive and
+	   present.
+	sas_satl_register_dev(dev);
+	*/
+	return 0;
+out_err:
+	dev->sata_dev.identify_packet_device = NULL;
+	dev->sata_dev.identify_device = NULL;
+	kfree(identify_x);
+	return res;
+}
+
+static int sas_discover_sata_pm(struct domain_device *dev)
+{
+	return -ENODEV;
+}
+
+int sas_notify_lldd_dev_found(struct domain_device *dev)
+{
+	int res = 0;
+	struct sas_ha_struct *sas_ha = dev->port->ha;
+	struct Scsi_Host *shost = sas_ha->core.shost;
+	struct sas_internal *i = to_sas_internal(shost->transportt);
+
+	if (i->dft->lldd_dev_found) {
+		res = i->dft->lldd_dev_found(dev);
+		if (res) {
+			printk("sas: driver on pcidev %s cannot handle "
+			       "device %llx, error:%d\n",
+			       pci_name(sas_ha->pcidev),
+			       SAS_ADDR(dev->sas_addr), res);
+		}
+	}
+	return res;
+}
+
+
+void sas_notify_lldd_dev_gone(struct domain_device *dev)
+{
+	struct sas_ha_struct *sas_ha = dev->port->ha;
+	struct Scsi_Host *shost = sas_ha->core.shost;
+	struct sas_internal *i = to_sas_internal(shost->transportt);
+
+	if (i->dft->lldd_dev_gone)
+		i->dft->lldd_dev_gone(dev);
+}
+
+/* ---------- Common/dispatchers ---------- */
+
+/**
+ * sas_discover_sata -- discover an STP/SATA domain device
+ * @dev: pointer to struct domain_device of interest
+ *
+ * First we notify the LLDD of this device, so we can send frames to
+ * it.  Then depending on the type of device we call the appropriate
+ * discover functions.  Once device discover is done, we notify the
+ * LLDD so that it can fine-tune its parameters for the device, by
+ * removing it and then adding it.  That is, the second time around,
+ * the driver would have certain fields, that it is looking at, set.
+ * Finally we initialize the kobj so that the device can be added to
+ * the system at registration time.  Devices directly attached to a HA
+ * port, have no parents.  All other devices do, and should have their
+ * "parent" pointer set appropriately before calling this function.
+ */
+int sas_discover_sata(struct domain_device *dev)
+{
+	int res;
+
+	sas_get_ata_command_set(dev);
+
+	res = sas_notify_lldd_dev_found(dev);
+	if (res)
+		return res;
+
+	switch (dev->dev_type) {
+	case SATA_DEV:
+		res = sas_discover_sata_dev(dev);
+		break;
+	case SATA_PM:
+		res = sas_discover_sata_pm(dev);
+		break;
+	default:
+		break;
+	}
+
+	sas_notify_lldd_dev_gone(dev);
+	if (!res) {
+		sas_notify_lldd_dev_found(dev);
+	}
+	return res;
+}
+
+/**
+ * sas_discover_end_dev -- discover an end device (SSP, etc)
+ * @end: pointer to domain device of interest
+ *
+ * See comment in sas_discover_sata().
+ */
+int sas_discover_end_dev(struct domain_device *dev)
+{
+	int res;
+
+	res = sas_notify_lldd_dev_found(dev);
+	if (res)
+		return res;
+
+	res = sas_rphy_add(dev->rphy);
+	if (res)
+		goto out_err;
+
+	/* do this to get the end device port attributes which will have
+	 * been scanned in sas_rphy_add */
+	sas_notify_lldd_dev_gone(dev);
+	sas_notify_lldd_dev_found(dev);
+
+	return 0;
+
+out_err:
+	sas_notify_lldd_dev_gone(dev);
+	return res;
+}
+
+/* ---------- Device registration and unregistration ---------- */
+
+static inline void sas_unregister_common_dev(struct domain_device *dev)
+{
+	sas_notify_lldd_dev_gone(dev);
+	if (!dev->parent)
+		dev->port->port_dev = NULL;
+	else
+		list_del_init(&dev->siblings);
+	list_del_init(&dev->dev_list_node);
+}
+
+void sas_unregister_dev(struct domain_device *dev)
+{
+	if (dev->rphy) {
+		sas_remove_children(&dev->rphy->dev);
+		sas_rphy_delete(dev->rphy);
+		dev->rphy = NULL;
+	}
+	if (dev->dev_type == EDGE_DEV || dev->dev_type == FANOUT_DEV) {
+		/* remove the phys and ports, everything else should be gone */
+		kfree(dev->ex_dev.ex_phy);
+		dev->ex_dev.ex_phy = NULL;
+	}
+	sas_unregister_common_dev(dev);
+}
+
+void sas_unregister_domain_devices(struct asd_sas_port *port)
+{
+	struct domain_device *dev, *n;
+
+	list_for_each_entry_safe_reverse(dev,n,&port->dev_list,dev_list_node)
+		sas_unregister_dev(dev);
+
+	port->port->rphy = NULL;
+
+}
+
+/* ---------- Discovery and Revalidation ---------- */
+
+/**
+ * sas_discover_domain -- discover the domain
+ * @port: port to the domain of interest
+ *
+ * NOTE: this process _must_ quit (return) as soon as any connection
+ * errors are encountered.  Connection recovery is done elsewhere.
+ * Discover process only interrogates devices in order to discover the
+ * domain.
+ */
+static void sas_discover_domain(void *data)
+{
+	int error = 0;
+	struct asd_sas_port *port = data;
+
+	sas_begin_event(DISCE_DISCOVER_DOMAIN, &port->disc.disc_event_lock,
+			&port->disc.pending);
+
+	if (port->port_dev)
+		return ;
+	else {
+		error = sas_get_port_device(port);
+		if (error)
+			return;
+	}
+
+	SAS_DPRINTK("DOING DISCOVERY on port %d, pid:%d\n", port->id,
+		    current->pid);
+
+	switch (port->port_dev->dev_type) {
+	case SAS_END_DEV:
+		error = sas_discover_end_dev(port->port_dev);
+		break;
+	case EDGE_DEV:
+	case FANOUT_DEV:
+		error = sas_discover_root_expander(port->port_dev);
+		break;
+	case SATA_DEV:
+	case SATA_PM:
+		error = sas_discover_sata(port->port_dev);
+		break;
+	default:
+		SAS_DPRINTK("unhandled device %d\n", port->port_dev->dev_type);
+		break;
+	}
+
+	if (error) {
+		kfree(port->port_dev); /* not kobject_register-ed yet */
+		port->port_dev = NULL;
+	}
+
+	SAS_DPRINTK("DONE DISCOVERY on port %d, pid:%d, result:%d\n", port->id,
+		    current->pid, error);
+}
+
+static void sas_revalidate_domain(void *data)
+{
+	int res = 0;
+	struct asd_sas_port *port = data;
+
+	sas_begin_event(DISCE_REVALIDATE_DOMAIN, &port->disc.disc_event_lock,
+			&port->disc.pending);
+
+	SAS_DPRINTK("REVALIDATING DOMAIN on port %d, pid:%d\n", port->id,
+		    current->pid);
+	if (port->port_dev)
+		res = sas_ex_revalidate_domain(port->port_dev);
+
+	SAS_DPRINTK("done REVALIDATING DOMAIN on port %d, pid:%d, res 0x%x\n",
+		    port->id, current->pid, res);
+}
+
+/* ---------- Events ---------- */
+
+int sas_discover_event(struct asd_sas_port *port, enum discover_event ev)
+{
+	struct sas_discovery *disc;
+
+	if (!port)
+		return 0;
+	disc = &port->disc;
+
+	BUG_ON(ev >= DISC_NUM_EVENTS);
+
+	sas_queue_event(ev, &disc->disc_event_lock, &disc->pending,
+			&disc->disc_work[ev], port->ha->core.shost);
+
+	return 0;
+}
+
+/**
+ * sas_init_disc -- initialize the discovery struct in the port
+ * @port: pointer to struct port
+ *
+ * Called when the ports are being initialized.
+ */
+void sas_init_disc(struct sas_discovery *disc, struct asd_sas_port *port)
+{
+	int i;
+
+	static void (*sas_event_fns[DISC_NUM_EVENTS])(void *) = {
+		[DISCE_DISCOVER_DOMAIN] = sas_discover_domain,
+		[DISCE_REVALIDATE_DOMAIN] = sas_revalidate_domain,
+	};
+
+	spin_lock_init(&disc->disc_event_lock);
+	disc->pending = 0;
+	for (i = 0; i < DISC_NUM_EVENTS; i++)
+		INIT_WORK(&disc->disc_work[i], sas_event_fns[i], port);
+}

drivers/scsi/libsas/sas_dump.c

@@ -0,0 +1,76 @@
+/*
+ * Serial Attached SCSI (SAS) Dump/Debugging routines
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "sas_dump.h"
+
+#ifdef SAS_DEBUG
+
+static const char *sas_hae_str[] = {
+	[0] = "HAE_RESET",
+};
+
+static const char *sas_porte_str[] = {
+	[0] = "PORTE_BYTES_DMAED",
+	[1] = "PORTE_BROADCAST_RCVD",
+	[2] = "PORTE_LINK_RESET_ERR",
+	[3] = "PORTE_TIMER_EVENT",
+	[4] = "PORTE_HARD_RESET",
+};
+
+static const char *sas_phye_str[] = {
+	[0] = "PHYE_LOSS_OF_SIGNAL",
+	[1] = "PHYE_OOB_DONE",
+	[2] = "PHYE_OOB_ERROR",
+	[3] = "PHYE_SPINUP_HOLD",
+};
+
+void sas_dprint_porte(int phyid, enum port_event pe)
+{
+	SAS_DPRINTK("phy%d: port event: %s\n", phyid, sas_porte_str[pe]);
+}
+void sas_dprint_phye(int phyid, enum phy_event pe)
+{
+	SAS_DPRINTK("phy%d: phy event: %s\n", phyid, sas_phye_str[pe]);
+}
+
+void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he)
+{
+	SAS_DPRINTK("ha %s: %s event\n", pci_name(sas_ha->pcidev),
+		    sas_hae_str[he]);
+}
+
+void sas_dump_port(struct asd_sas_port *port)
+{
+	SAS_DPRINTK("port%d: class:0x%x\n", port->id, port->class);
+	SAS_DPRINTK("port%d: sas_addr:%llx\n", port->id,
+		    SAS_ADDR(port->sas_addr));
+	SAS_DPRINTK("port%d: attached_sas_addr:%llx\n", port->id,
+		    SAS_ADDR(port->attached_sas_addr));
+	SAS_DPRINTK("port%d: iproto:0x%x\n", port->id, port->iproto);
+	SAS_DPRINTK("port%d: tproto:0x%x\n", port->id, port->tproto);
+	SAS_DPRINTK("port%d: oob_mode:0x%x\n", port->id, port->oob_mode);
+	SAS_DPRINTK("port%d: num_phys:%d\n", port->id, port->num_phys);
+}
+
+#endif /* SAS_DEBUG */

drivers/scsi/libsas/sas_dump.h

@@ -0,0 +1,42 @@
+/*
+ * Serial Attached SCSI (SAS) Dump/Debugging routines header file
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "sas_internal.h"
+
+#ifdef SAS_DEBUG
+
+void sas_dprint_porte(int phyid, enum port_event pe);
+void sas_dprint_phye(int phyid, enum phy_event pe);
+void sas_dprint_hae(struct sas_ha_struct *sas_ha, enum ha_event he);
+void sas_dump_port(struct asd_sas_port *port);
+
+#else /* SAS_DEBUG */
+
+static inline void sas_dprint_porte(int phyid, enum port_event pe) { }
+static inline void sas_dprint_phye(int phyid, enum phy_event pe) { }
+static inline void sas_dprint_hae(struct sas_ha_struct *sas_ha,
+				  enum ha_event he) { }
+static inline void sas_dump_port(struct asd_sas_port *port) { }
+
+#endif /* SAS_DEBUG */

drivers/scsi/libsas/sas_event.c

@@ -0,0 +1,75 @@
+/*
+ * Serial Attached SCSI (SAS) Event processing
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <scsi/scsi_host.h>
+#include "sas_internal.h"
+#include "sas_dump.h"
+
+static void notify_ha_event(struct sas_ha_struct *sas_ha, enum ha_event event)
+{
+	BUG_ON(event >= HA_NUM_EVENTS);
+
+	sas_queue_event(event, &sas_ha->event_lock, &sas_ha->pending,
+			&sas_ha->ha_events[event], sas_ha->core.shost);
+}
+
+static void notify_port_event(struct asd_sas_phy *phy, enum port_event event)
+{
+	struct sas_ha_struct *ha = phy->ha;
+
+	BUG_ON(event >= PORT_NUM_EVENTS);
+
+	sas_queue_event(event, &ha->event_lock, &phy->port_events_pending,
+			&phy->port_events[event], ha->core.shost);
+}
+
+static void notify_phy_event(struct asd_sas_phy *phy, enum phy_event event)
+{
+	struct sas_ha_struct *ha = phy->ha;
+
+	BUG_ON(event >= PHY_NUM_EVENTS);
+
+	sas_queue_event(event, &ha->event_lock, &phy->phy_events_pending,
+			&phy->phy_events[event], ha->core.shost);
+}
+
+int sas_init_events(struct sas_ha_struct *sas_ha)
+{
+	static void (*sas_ha_event_fns[HA_NUM_EVENTS])(void *) = {
+		[HAE_RESET] = sas_hae_reset,
+	};
+
+	int i;
+
+	spin_lock_init(&sas_ha->event_lock);
+
+	for (i = 0; i < HA_NUM_EVENTS; i++)
+		INIT_WORK(&sas_ha->ha_events[i], sas_ha_event_fns[i], sas_ha);
+
+	sas_ha->notify_ha_event = notify_ha_event;
+	sas_ha->notify_port_event = notify_port_event;
+	sas_ha->notify_phy_event = notify_phy_event;
+
+	return 0;
+}

drivers/scsi/libsas/sas_init.c

@@ -0,0 +1,267 @@
+/*
+ * Serial Attached SCSI (SAS) Transport Layer initialization
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/spinlock.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+
+#include "sas_internal.h"
+
+#include "../scsi_sas_internal.h"
+
+kmem_cache_t *sas_task_cache;
+
+/*------------ SAS addr hash -----------*/
+void sas_hash_addr(u8 *hashed, const u8 *sas_addr)
+{
+        const u32 poly = 0x00DB2777;
+        u32     r = 0;
+        int     i;
+
+        for (i = 0; i < 8; i++) {
+                int b;
+                for (b = 7; b >= 0; b--) {
+                        r <<= 1;
+                        if ((1 << b) & sas_addr[i]) {
+                                if (!(r & 0x01000000))
+                                        r ^= poly;
+                        } else if (r & 0x01000000)
+                                r ^= poly;
+                }
+        }
+
+        hashed[0] = (r >> 16) & 0xFF;
+        hashed[1] = (r >> 8) & 0xFF ;
+        hashed[2] = r & 0xFF;
+}
+
+
+/* ---------- HA events ---------- */
+
+void sas_hae_reset(void *data)
+{
+	struct sas_ha_struct *ha = data;
+
+	sas_begin_event(HAE_RESET, &ha->event_lock,
+			&ha->pending);
+}
+
+int sas_register_ha(struct sas_ha_struct *sas_ha)
+{
+	int error = 0;
+
+	spin_lock_init(&sas_ha->phy_port_lock);
+	sas_hash_addr(sas_ha->hashed_sas_addr, sas_ha->sas_addr);
+
+	if (sas_ha->lldd_queue_size == 0)
+		sas_ha->lldd_queue_size = 1;
+	else if (sas_ha->lldd_queue_size == -1)
+		sas_ha->lldd_queue_size = 128; /* Sanity */
+
+	error = sas_register_phys(sas_ha);
+	if (error) {
+		printk(KERN_NOTICE "couldn't register sas phys:%d\n", error);
+		return error;
+	}
+
+	error = sas_register_ports(sas_ha);
+	if (error) {
+		printk(KERN_NOTICE "couldn't register sas ports:%d\n", error);
+		goto Undo_phys;
+	}
+
+	error = sas_init_events(sas_ha);
+	if (error) {
+		printk(KERN_NOTICE "couldn't start event thread:%d\n", error);
+		goto Undo_ports;
+	}
+
+	if (sas_ha->lldd_max_execute_num > 1) {
+		error = sas_init_queue(sas_ha);
+		if (error) {
+			printk(KERN_NOTICE "couldn't start queue thread:%d, "
+			       "running in direct mode\n", error);
+			sas_ha->lldd_max_execute_num = 1;
+		}
+	}
+
+	return 0;
+
+Undo_ports:
+	sas_unregister_ports(sas_ha);
+Undo_phys:
+
+	return error;
+}
+
+int sas_unregister_ha(struct sas_ha_struct *sas_ha)
+{
+	if (sas_ha->lldd_max_execute_num > 1) {
+		sas_shutdown_queue(sas_ha);
+	}
+
+	sas_unregister_ports(sas_ha);
+
+	return 0;
+}
+
+static int sas_get_linkerrors(struct sas_phy *phy)
+{
+	if (scsi_is_sas_phy_local(phy))
+		/* FIXME: we have no local phy stats
+		 * gathering at this time */
+		return -EINVAL;
+
+	return sas_smp_get_phy_events(phy);
+}
+
+static int sas_phy_reset(struct sas_phy *phy, int hard_reset)
+{
+	int ret;
+	enum phy_func reset_type;
+
+	if (hard_reset)
+		reset_type = PHY_FUNC_HARD_RESET;
+	else
+		reset_type = PHY_FUNC_LINK_RESET;
+
+	if (scsi_is_sas_phy_local(phy)) {
+		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
+		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
+		struct sas_internal *i =
+			to_sas_internal(sas_ha->core.shost->transportt);
+
+		ret = i->dft->lldd_control_phy(asd_phy, reset_type, NULL);
+	} else {
+		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
+		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
+		ret = sas_smp_phy_control(ddev, phy->number, reset_type, NULL);
+	}
+	return ret;
+}
+
+static int sas_set_phy_speed(struct sas_phy *phy,
+			     struct sas_phy_linkrates *rates)
+{
+	int ret;
+
+	if ((rates->minimum_linkrate &&
+	     rates->minimum_linkrate > phy->maximum_linkrate) ||
+	    (rates->maximum_linkrate &&
+	     rates->maximum_linkrate < phy->minimum_linkrate))
+		return -EINVAL;
+
+	if (rates->minimum_linkrate &&
+	    rates->minimum_linkrate < phy->minimum_linkrate_hw)
+		rates->minimum_linkrate = phy->minimum_linkrate_hw;
+
+	if (rates->maximum_linkrate &&
+	    rates->maximum_linkrate > phy->maximum_linkrate_hw)
+		rates->maximum_linkrate = phy->maximum_linkrate_hw;
+
+	if (scsi_is_sas_phy_local(phy)) {
+		struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
+		struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
+		struct asd_sas_phy *asd_phy = sas_ha->sas_phy[phy->number];
+		struct sas_internal *i =
+			to_sas_internal(sas_ha->core.shost->transportt);
+
+		ret = i->dft->lldd_control_phy(asd_phy, PHY_FUNC_SET_LINK_RATE,
+					       rates);
+	} else {
+		struct sas_rphy *rphy = dev_to_rphy(phy->dev.parent);
+		struct domain_device *ddev = sas_find_dev_by_rphy(rphy);
+		ret = sas_smp_phy_control(ddev, phy->number,
+					  PHY_FUNC_LINK_RESET, rates);
+
+	}
+
+	return ret;
+}
+
+static struct sas_function_template sft = {
+	.phy_reset = sas_phy_reset,
+	.set_phy_speed = sas_set_phy_speed,
+	.get_linkerrors = sas_get_linkerrors,
+};
+
+struct scsi_transport_template *
+sas_domain_attach_transport(struct sas_domain_function_template *dft)
+{
+	struct scsi_transport_template *stt = sas_attach_transport(&sft);
+	struct sas_internal *i;
+
+	if (!stt)
+		return stt;
+
+	i = to_sas_internal(stt);
+	i->dft = dft;
+	stt->create_work_queue = 1;
+	stt->eh_timed_out = sas_scsi_timed_out;
+	stt->eh_strategy_handler = sas_scsi_recover_host;
+
+	return stt;
+}
+EXPORT_SYMBOL_GPL(sas_domain_attach_transport);
+
+
+void sas_domain_release_transport(struct scsi_transport_template *stt)
+{
+	sas_release_transport(stt);
+}
+EXPORT_SYMBOL_GPL(sas_domain_release_transport);
+
+/* ---------- SAS Class register/unregister ---------- */
+
+static int __init sas_class_init(void)
+{
+	sas_task_cache = kmem_cache_create("sas_task", sizeof(struct sas_task),
+					   0, SLAB_HWCACHE_ALIGN, NULL, NULL);
+	if (!sas_task_cache)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void __exit sas_class_exit(void)
+{
+	kmem_cache_destroy(sas_task_cache);
+}
+
+MODULE_AUTHOR("Luben Tuikov <luben_tuikov@adaptec.com>");
+MODULE_DESCRIPTION("SAS Transport Layer");
+MODULE_LICENSE("GPL v2");
+
+module_init(sas_class_init);
+module_exit(sas_class_exit);
+
+EXPORT_SYMBOL_GPL(sas_register_ha);
+EXPORT_SYMBOL_GPL(sas_unregister_ha);

drivers/scsi/libsas/sas_internal.h

@@ -0,0 +1,146 @@
+/*
+ * Serial Attached SCSI (SAS) class internal header file
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ */
+
+#ifndef _SAS_INTERNAL_H_
+#define _SAS_INTERNAL_H_
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport_sas.h>
+#include <scsi/libsas.h>
+
+#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
+
+#ifdef SAS_DEBUG
+#define SAS_DPRINTK(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
+#else
+#define SAS_DPRINTK(fmt, ...)
+#endif
+
+void sas_scsi_recover_host(struct Scsi_Host *shost);
+
+int sas_show_class(enum sas_class class, char *buf);
+int sas_show_proto(enum sas_proto proto, char *buf);
+int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
+int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
+
+int  sas_register_phys(struct sas_ha_struct *sas_ha);
+void sas_unregister_phys(struct sas_ha_struct *sas_ha);
+
+int  sas_register_ports(struct sas_ha_struct *sas_ha);
+void sas_unregister_ports(struct sas_ha_struct *sas_ha);
+
+enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *);
+
+int  sas_init_queue(struct sas_ha_struct *sas_ha);
+int  sas_init_events(struct sas_ha_struct *sas_ha);
+void sas_shutdown_queue(struct sas_ha_struct *sas_ha);
+
+void sas_deform_port(struct asd_sas_phy *phy);
+
+void sas_porte_bytes_dmaed(void *);
+void sas_porte_broadcast_rcvd(void *);
+void sas_porte_link_reset_err(void *);
+void sas_porte_timer_event(void *);
+void sas_porte_hard_reset(void *);
+
+int sas_notify_lldd_dev_found(struct domain_device *);
+void sas_notify_lldd_dev_gone(struct domain_device *);
+
+int sas_smp_phy_control(struct domain_device *dev, int phy_id,
+			enum phy_func phy_func, struct sas_phy_linkrates *);
+int sas_smp_get_phy_events(struct sas_phy *phy);
+
+struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
+
+void sas_hae_reset(void *);
+
+static inline void sas_queue_event(int event, spinlock_t *lock,
+				   unsigned long *pending,
+				   struct work_struct *work,
+				   struct Scsi_Host *shost)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(lock, flags);
+	if (test_bit(event, pending)) {
+		spin_unlock_irqrestore(lock, flags);
+		return;
+	}
+	__set_bit(event, pending);
+	spin_unlock_irqrestore(lock, flags);
+	scsi_queue_work(shost, work);
+}
+
+static inline void sas_begin_event(int event, spinlock_t *lock,
+				   unsigned long *pending)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(lock, flags);
+	__clear_bit(event, pending);
+	spin_unlock_irqrestore(lock, flags);
+}
+
+static inline void sas_fill_in_rphy(struct domain_device *dev,
+				    struct sas_rphy *rphy)
+{
+	rphy->identify.sas_address = SAS_ADDR(dev->sas_addr);
+	rphy->identify.initiator_port_protocols = dev->iproto;
+	rphy->identify.target_port_protocols = dev->tproto;
+	switch (dev->dev_type) {
+	case SATA_DEV:
+		/* FIXME: need sata device type */
+	case SAS_END_DEV:
+		rphy->identify.device_type = SAS_END_DEVICE;
+		break;
+	case EDGE_DEV:
+		rphy->identify.device_type = SAS_EDGE_EXPANDER_DEVICE;
+		break;
+	case FANOUT_DEV:
+		rphy->identify.device_type = SAS_FANOUT_EXPANDER_DEVICE;
+		break;
+	default:
+		rphy->identify.device_type = SAS_PHY_UNUSED;
+		break;
+	}
+}
+
+static inline void sas_add_parent_port(struct domain_device *dev, int phy_id)
+{
+	struct expander_device *ex = &dev->ex_dev;
+	struct ex_phy *ex_phy = &ex->ex_phy[phy_id];
+
+	if (!ex->parent_port) {
+		ex->parent_port = sas_port_alloc(&dev->rphy->dev, phy_id);
+		/* FIXME: error handling */
+		BUG_ON(!ex->parent_port);
+		BUG_ON(sas_port_add(ex->parent_port));
+		sas_port_mark_backlink(ex->parent_port);
+	}
+	sas_port_add_phy(ex->parent_port, ex_phy->phy);
+}
+
+#endif /* _SAS_INTERNAL_H_ */

drivers/scsi/libsas/sas_phy.c

@@ -0,0 +1,158 @@
+/*
+ * Serial Attached SCSI (SAS) Phy class
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "sas_internal.h"
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+#include "../scsi_sas_internal.h"
+
+/* ---------- Phy events ---------- */
+
+static void sas_phye_loss_of_signal(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PHYE_LOSS_OF_SIGNAL, &phy->ha->event_lock,
+			&phy->phy_events_pending);
+	phy->error = 0;
+	sas_deform_port(phy);
+}
+
+static void sas_phye_oob_done(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PHYE_OOB_DONE, &phy->ha->event_lock,
+			&phy->phy_events_pending);
+	phy->error = 0;
+}
+
+static void sas_phye_oob_error(void *data)
+{
+	struct asd_sas_phy *phy = data;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct asd_sas_port *port = phy->port;
+	struct sas_internal *i =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	sas_begin_event(PHYE_OOB_ERROR, &phy->ha->event_lock,
+			&phy->phy_events_pending);
+
+	sas_deform_port(phy);
+
+	if (!port && phy->enabled && i->dft->lldd_control_phy) {
+		phy->error++;
+		switch (phy->error) {
+		case 1:
+		case 2:
+			i->dft->lldd_control_phy(phy, PHY_FUNC_HARD_RESET,
+						 NULL);
+			break;
+		case 3:
+		default:
+			phy->error = 0;
+			phy->enabled = 0;
+			i->dft->lldd_control_phy(phy, PHY_FUNC_DISABLE, NULL);
+			break;
+		}
+	}
+}
+
+static void sas_phye_spinup_hold(void *data)
+{
+	struct asd_sas_phy *phy = data;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct sas_internal *i =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	sas_begin_event(PHYE_SPINUP_HOLD, &phy->ha->event_lock,
+			&phy->phy_events_pending);
+
+	phy->error = 0;
+	i->dft->lldd_control_phy(phy, PHY_FUNC_RELEASE_SPINUP_HOLD, NULL);
+}
+
+/* ---------- Phy class registration ---------- */
+
+int sas_register_phys(struct sas_ha_struct *sas_ha)
+{
+	int i;
+
+	static void (*sas_phy_event_fns[PHY_NUM_EVENTS])(void *) = {
+		[PHYE_LOSS_OF_SIGNAL] = sas_phye_loss_of_signal,
+		[PHYE_OOB_DONE] = sas_phye_oob_done,
+		[PHYE_OOB_ERROR] = sas_phye_oob_error,
+		[PHYE_SPINUP_HOLD] = sas_phye_spinup_hold,
+	};
+
+	static void (*sas_port_event_fns[PORT_NUM_EVENTS])(void *) = {
+		[PORTE_BYTES_DMAED] = sas_porte_bytes_dmaed,
+		[PORTE_BROADCAST_RCVD] = sas_porte_broadcast_rcvd,
+		[PORTE_LINK_RESET_ERR] = sas_porte_link_reset_err,
+		[PORTE_TIMER_EVENT] = sas_porte_timer_event,
+		[PORTE_HARD_RESET] = sas_porte_hard_reset,
+	};
+
+	/* Now register the phys. */
+	for (i = 0; i < sas_ha->num_phys; i++) {
+		int k;
+		struct asd_sas_phy *phy = sas_ha->sas_phy[i];
+
+		phy->error = 0;
+		INIT_LIST_HEAD(&phy->port_phy_el);
+		for (k = 0; k < PORT_NUM_EVENTS; k++)
+			INIT_WORK(&phy->port_events[k], sas_port_event_fns[k],
+				  phy);
+
+		for (k = 0; k < PHY_NUM_EVENTS; k++)
+			INIT_WORK(&phy->phy_events[k], sas_phy_event_fns[k],
+				  phy);
+		phy->port = NULL;
+		phy->ha = sas_ha;
+		spin_lock_init(&phy->frame_rcvd_lock);
+		spin_lock_init(&phy->sas_prim_lock);
+		phy->frame_rcvd_size = 0;
+
+		phy->phy = sas_phy_alloc(&sas_ha->core.shost->shost_gendev,
+					 i);
+		if (!phy->phy)
+			return -ENOMEM;
+
+		phy->phy->identify.initiator_port_protocols =
+			phy->iproto;
+		phy->phy->identify.target_port_protocols = phy->tproto;
+		phy->phy->identify.sas_address = SAS_ADDR(sas_ha->sas_addr);
+		phy->phy->identify.phy_identifier = i;
+		phy->phy->minimum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+		phy->phy->maximum_linkrate_hw = SAS_LINK_RATE_UNKNOWN;
+		phy->phy->minimum_linkrate = SAS_LINK_RATE_UNKNOWN;
+		phy->phy->maximum_linkrate = SAS_LINK_RATE_UNKNOWN;
+		phy->phy->negotiated_linkrate = SAS_LINK_RATE_UNKNOWN;
+
+		sas_phy_add(phy->phy);
+	}
+
+	return 0;
+}

drivers/scsi/libsas/sas_port.c

@@ -0,0 +1,279 @@
+/*
+ * Serial Attached SCSI (SAS) Port class
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "sas_internal.h"
+
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+#include "../scsi_sas_internal.h"
+
+/**
+ * sas_form_port -- add this phy to a port
+ * @phy: the phy of interest
+ *
+ * This function adds this phy to an existing port, thus creating a wide
+ * port, or it creates a port and adds the phy to the port.
+ */
+static void sas_form_port(struct asd_sas_phy *phy)
+{
+	int i;
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct asd_sas_port *port = phy->port;
+	struct sas_internal *si =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	if (port) {
+		if (memcmp(port->attached_sas_addr, phy->attached_sas_addr,
+			   SAS_ADDR_SIZE) == 0)
+			sas_deform_port(phy);
+		else {
+			SAS_DPRINTK("%s: phy%d belongs to port%d already(%d)!\n",
+				    __FUNCTION__, phy->id, phy->port->id,
+				    phy->port->num_phys);
+			return;
+		}
+	}
+
+	/* find a port */
+	spin_lock(&sas_ha->phy_port_lock);
+	for (i = 0; i < sas_ha->num_phys; i++) {
+		port = sas_ha->sas_port[i];
+		spin_lock(&port->phy_list_lock);
+		if (*(u64 *) port->sas_addr &&
+		    memcmp(port->attached_sas_addr,
+			   phy->attached_sas_addr, SAS_ADDR_SIZE) == 0 &&
+		    port->num_phys > 0) {
+			/* wide port */
+			SAS_DPRINTK("phy%d matched wide port%d\n", phy->id,
+				    port->id);
+			break;
+		} else if (*(u64 *) port->sas_addr == 0 && port->num_phys==0) {
+			memcpy(port->sas_addr, phy->sas_addr, SAS_ADDR_SIZE);
+			break;
+		}
+		spin_unlock(&port->phy_list_lock);
+	}
+
+	if (i >= sas_ha->num_phys) {
+		printk(KERN_NOTICE "%s: couldn't find a free port, bug?\n",
+		       __FUNCTION__);
+		spin_unlock(&sas_ha->phy_port_lock);
+		return;
+	}
+
+	/* add the phy to the port */
+	list_add_tail(&phy->port_phy_el, &port->phy_list);
+	phy->port = port;
+	port->num_phys++;
+	port->phy_mask |= (1U << phy->id);
+
+	if (!port->phy)
+		port->phy = phy->phy;
+
+	SAS_DPRINTK("phy%d added to port%d, phy_mask:0x%x\n", phy->id,
+		    port->id, port->phy_mask);
+
+	if (*(u64 *)port->attached_sas_addr == 0) {
+		port->class = phy->class;
+		memcpy(port->attached_sas_addr, phy->attached_sas_addr,
+		       SAS_ADDR_SIZE);
+		port->iproto = phy->iproto;
+		port->tproto = phy->tproto;
+		port->oob_mode = phy->oob_mode;
+		port->linkrate = phy->linkrate;
+	} else
+		port->linkrate = max(port->linkrate, phy->linkrate);
+	spin_unlock(&port->phy_list_lock);
+	spin_unlock(&sas_ha->phy_port_lock);
+
+	if (!port->port) {
+		port->port = sas_port_alloc(phy->phy->dev.parent, port->id);
+		BUG_ON(!port->port);
+		sas_port_add(port->port);
+	}
+	sas_port_add_phy(port->port, phy->phy);
+
+	if (port->port_dev)
+		port->port_dev->pathways = port->num_phys;
+
+	/* Tell the LLDD about this port formation. */
+	if (si->dft->lldd_port_formed)
+		si->dft->lldd_port_formed(phy);
+
+	sas_discover_event(phy->port, DISCE_DISCOVER_DOMAIN);
+}
+
+/**
+ * sas_deform_port -- remove this phy from the port it belongs to
+ * @phy: the phy of interest
+ *
+ * This is called when the physical link to the other phy has been
+ * lost (on this phy), in Event thread context. We cannot delay here.
+ */
+void sas_deform_port(struct asd_sas_phy *phy)
+{
+	struct sas_ha_struct *sas_ha = phy->ha;
+	struct asd_sas_port *port = phy->port;
+	struct sas_internal *si =
+		to_sas_internal(sas_ha->core.shost->transportt);
+
+	if (!port)
+		return;		  /* done by a phy event */
+
+	if (port->port_dev)
+		port->port_dev->pathways--;
+
+	if (port->num_phys == 1) {
+		sas_unregister_domain_devices(port);
+		sas_port_delete(port->port);
+		port->port = NULL;
+	} else
+		sas_port_delete_phy(port->port, phy->phy);
+
+
+	if (si->dft->lldd_port_deformed)
+		si->dft->lldd_port_deformed(phy);
+
+	spin_lock(&sas_ha->phy_port_lock);
+	spin_lock(&port->phy_list_lock);
+
+	list_del_init(&phy->port_phy_el);
+	phy->port = NULL;
+	port->num_phys--;
+	port->phy_mask &= ~(1U << phy->id);
+
+	if (port->num_phys == 0) {
+		INIT_LIST_HEAD(&port->phy_list);
+		memset(port->sas_addr, 0, SAS_ADDR_SIZE);
+		memset(port->attached_sas_addr, 0, SAS_ADDR_SIZE);
+		port->class = 0;
+		port->iproto = 0;
+		port->tproto = 0;
+		port->oob_mode = 0;
+		port->phy_mask = 0;
+	}
+	spin_unlock(&port->phy_list_lock);
+	spin_unlock(&sas_ha->phy_port_lock);
+
+	return;
+}
+
+/* ---------- SAS port events ---------- */
+
+void sas_porte_bytes_dmaed(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PORTE_BYTES_DMAED, &phy->ha->event_lock,
+			&phy->port_events_pending);
+
+	sas_form_port(phy);
+}
+
+void sas_porte_broadcast_rcvd(void *data)
+{
+	unsigned long flags;
+	u32 prim;
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PORTE_BROADCAST_RCVD, &phy->ha->event_lock,
+			&phy->port_events_pending);
+
+	spin_lock_irqsave(&phy->sas_prim_lock, flags);
+	prim = phy->sas_prim;
+	spin_unlock_irqrestore(&phy->sas_prim_lock, flags);
+
+	SAS_DPRINTK("broadcast received: %d\n", prim);
+	sas_discover_event(phy->port, DISCE_REVALIDATE_DOMAIN);
+}
+
+void sas_porte_link_reset_err(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PORTE_LINK_RESET_ERR, &phy->ha->event_lock,
+			&phy->port_events_pending);
+
+	sas_deform_port(phy);
+}
+
+void sas_porte_timer_event(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PORTE_TIMER_EVENT, &phy->ha->event_lock,
+			&phy->port_events_pending);
+
+	sas_deform_port(phy);
+}
+
+void sas_porte_hard_reset(void *data)
+{
+	struct asd_sas_phy *phy = data;
+
+	sas_begin_event(PORTE_HARD_RESET, &phy->ha->event_lock,
+			&phy->port_events_pending);
+
+	sas_deform_port(phy);
+}
+
+/* ---------- SAS port registration ---------- */
+
+static void sas_init_port(struct asd_sas_port *port,
+			  struct sas_ha_struct *sas_ha, int i)
+{
+	port->id = i;
+	INIT_LIST_HEAD(&port->dev_list);
+	spin_lock_init(&port->phy_list_lock);
+	INIT_LIST_HEAD(&port->phy_list);
+	port->num_phys = 0;
+	port->phy_mask = 0;
+	port->ha = sas_ha;
+
+	spin_lock_init(&port->dev_list_lock);
+}
+
+int sas_register_ports(struct sas_ha_struct *sas_ha)
+{
+	int i;
+
+	/* initialize the ports and discovery */
+	for (i = 0; i < sas_ha->num_phys; i++) {
+		struct asd_sas_port *port = sas_ha->sas_port[i];
+
+		sas_init_port(port, sas_ha, i);
+		sas_init_disc(&port->disc, port);
+	}
+	return 0;
+}
+
+void sas_unregister_ports(struct sas_ha_struct *sas_ha)
+{
+	int i;
+
+	for (i = 0; i < sas_ha->num_phys; i++)
+		if (sas_ha->sas_phy[i]->port)
+			sas_deform_port(sas_ha->sas_phy[i]);
+
+}

drivers/scsi/libsas/sas_scsi_host.c

@@ -0,0 +1,786 @@
+/*
+ * Serial Attached SCSI (SAS) class SCSI Host glue.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ *
+ */
+
+#include "sas_internal.h"
+
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+#include "../scsi_sas_internal.h"
+
+#include <linux/err.h>
+#include <linux/blkdev.h>
+#include <linux/scatterlist.h>
+
+/* ---------- SCSI Host glue ---------- */
+
+#define TO_SAS_TASK(_scsi_cmd)  ((void *)(_scsi_cmd)->host_scribble)
+#define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0)
+
+static void sas_scsi_task_done(struct sas_task *task)
+{
+	struct task_status_struct *ts = &task->task_status;
+	struct scsi_cmnd *sc = task->uldd_task;
+	unsigned ts_flags = task->task_state_flags;
+	int hs = 0, stat = 0;
+
+	if (unlikely(!sc)) {
+		SAS_DPRINTK("task_done called with non existing SCSI cmnd!\n");
+		list_del_init(&task->list);
+		sas_free_task(task);
+		return;
+	}
+
+	if (ts->resp == SAS_TASK_UNDELIVERED) {
+		/* transport error */
+		hs = DID_NO_CONNECT;
+	} else { /* ts->resp == SAS_TASK_COMPLETE */
+		/* task delivered, what happened afterwards? */
+		switch (ts->stat) {
+		case SAS_DEV_NO_RESPONSE:
+		case SAS_INTERRUPTED:
+		case SAS_PHY_DOWN:
+		case SAS_NAK_R_ERR:
+		case SAS_OPEN_TO:
+			hs = DID_NO_CONNECT;
+			break;
+		case SAS_DATA_UNDERRUN:
+			sc->resid = ts->residual;
+			if (sc->request_bufflen - sc->resid < sc->underflow)
+				hs = DID_ERROR;
+			break;
+		case SAS_DATA_OVERRUN:
+			hs = DID_ERROR;
+			break;
+		case SAS_QUEUE_FULL:
+			hs = DID_SOFT_ERROR; /* retry */
+			break;
+		case SAS_DEVICE_UNKNOWN:
+			hs = DID_BAD_TARGET;
+			break;
+		case SAS_SG_ERR:
+			hs = DID_PARITY;
+			break;
+		case SAS_OPEN_REJECT:
+			if (ts->open_rej_reason == SAS_OREJ_RSVD_RETRY)
+				hs = DID_SOFT_ERROR; /* retry */
+			else
+				hs = DID_ERROR;
+			break;
+		case SAS_PROTO_RESPONSE:
+			SAS_DPRINTK("LLDD:%s sent SAS_PROTO_RESP for an SSP "
+				    "task; please report this\n",
+				    task->dev->port->ha->sas_ha_name);
+			break;
+		case SAS_ABORTED_TASK:
+			hs = DID_ABORT;
+			break;
+		case SAM_CHECK_COND:
+			memcpy(sc->sense_buffer, ts->buf,
+			       max(SCSI_SENSE_BUFFERSIZE, ts->buf_valid_size));
+			stat = SAM_CHECK_COND;
+			break;
+		default:
+			stat = ts->stat;
+			break;
+		}
+	}
+	ASSIGN_SAS_TASK(sc, NULL);
+	sc->result = (hs << 16) | stat;
+	list_del_init(&task->list);
+	sas_free_task(task);
+	/* This is very ugly but this is how SCSI Core works. */
+	if (ts_flags & SAS_TASK_STATE_ABORTED)
+		scsi_finish_command(sc);
+	else
+		sc->scsi_done(sc);
+}
+
+static enum task_attribute sas_scsi_get_task_attr(struct scsi_cmnd *cmd)
+{
+	enum task_attribute ta = TASK_ATTR_SIMPLE;
+	if (cmd->request && blk_rq_tagged(cmd->request)) {
+		if (cmd->device->ordered_tags &&
+		    (cmd->request->flags & REQ_HARDBARRIER))
+			ta = TASK_ATTR_HOQ;
+	}
+	return ta;
+}
+
+static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
+					       struct domain_device *dev,
+					       unsigned long gfp_flags)
+{
+	struct sas_task *task = sas_alloc_task(gfp_flags);
+	struct scsi_lun lun;
+
+	if (!task)
+		return NULL;
+
+	*(u32 *)cmd->sense_buffer = 0;
+	task->uldd_task = cmd;
+	ASSIGN_SAS_TASK(cmd, task);
+
+	task->dev = dev;
+	task->task_proto = task->dev->tproto; /* BUG_ON(!SSP) */
+
+	task->ssp_task.retry_count = 1;
+	int_to_scsilun(cmd->device->lun, &lun);
+	memcpy(task->ssp_task.LUN, &lun.scsi_lun, 8);
+	task->ssp_task.task_attr = sas_scsi_get_task_attr(cmd);
+	memcpy(task->ssp_task.cdb, cmd->cmnd, 16);
+
+	task->scatter = cmd->request_buffer;
+	task->num_scatter = cmd->use_sg;
+	task->total_xfer_len = cmd->request_bufflen;
+	task->data_dir = cmd->sc_data_direction;
+
+	task->task_done = sas_scsi_task_done;
+
+	return task;
+}
+
+static int sas_queue_up(struct sas_task *task)
+{
+	struct sas_ha_struct *sas_ha = task->dev->port->ha;
+	struct scsi_core *core = &sas_ha->core;
+	unsigned long flags;
+	LIST_HEAD(list);
+
+	spin_lock_irqsave(&core->task_queue_lock, flags);
+	if (sas_ha->lldd_queue_size < core->task_queue_size + 1) {
+		spin_unlock_irqrestore(&core->task_queue_lock, flags);
+		return -SAS_QUEUE_FULL;
+	}
+	list_add_tail(&task->list, &core->task_queue);
+	core->task_queue_size += 1;
+	spin_unlock_irqrestore(&core->task_queue_lock, flags);
+	up(&core->queue_thread_sema);
+
+	return 0;
+}
+
+/**
+ * sas_queuecommand -- Enqueue a command for processing
+ * @parameters: See SCSI Core documentation
+ *
+ * Note: XXX: Remove the host unlock/lock pair when SCSI Core can
+ * call us without holding an IRQ spinlock...
+ */
+int sas_queuecommand(struct scsi_cmnd *cmd,
+		     void (*scsi_done)(struct scsi_cmnd *))
+{
+	int res = 0;
+	struct domain_device *dev = cmd_to_domain_dev(cmd);
+	struct Scsi_Host *host = cmd->device->host;
+	struct sas_internal *i = to_sas_internal(host->transportt);
+
+	spin_unlock_irq(host->host_lock);
+
+	{
+		struct sas_ha_struct *sas_ha = dev->port->ha;
+		struct sas_task *task;
+
+		res = -ENOMEM;
+		task = sas_create_task(cmd, dev, GFP_ATOMIC);
+		if (!task)
+			goto out;
+
+		cmd->scsi_done = scsi_done;
+		/* Queue up, Direct Mode or Task Collector Mode. */
+		if (sas_ha->lldd_max_execute_num < 2)
+			res = i->dft->lldd_execute_task(task, 1, GFP_ATOMIC);
+		else
+			res = sas_queue_up(task);
+
+		/* Examine */
+		if (res) {
+			SAS_DPRINTK("lldd_execute_task returned: %d\n", res);
+			ASSIGN_SAS_TASK(cmd, NULL);
+			sas_free_task(task);
+			if (res == -SAS_QUEUE_FULL) {
+				cmd->result = DID_SOFT_ERROR << 16; /* retry */
+				res = 0;
+				scsi_done(cmd);
+			}
+			goto out;
+		}
+	}
+out:
+	spin_lock_irq(host->host_lock);
+	return res;
+}
+
+static void sas_scsi_clear_queue_lu(struct list_head *error_q, struct scsi_cmnd *my_cmd)
+{
+	struct scsi_cmnd *cmd, *n;
+
+	list_for_each_entry_safe(cmd, n, error_q, eh_entry) {
+		if (cmd == my_cmd)
+			list_del_init(&cmd->eh_entry);
+	}
+}
+
+static void sas_scsi_clear_queue_I_T(struct list_head *error_q,
+				     struct domain_device *dev)
+{
+	struct scsi_cmnd *cmd, *n;
+
+	list_for_each_entry_safe(cmd, n, error_q, eh_entry) {
+		struct domain_device *x = cmd_to_domain_dev(cmd);
+
+		if (x == dev)
+			list_del_init(&cmd->eh_entry);
+	}
+}
+
+static void sas_scsi_clear_queue_port(struct list_head *error_q,
+				      struct asd_sas_port *port)
+{
+	struct scsi_cmnd *cmd, *n;
+
+	list_for_each_entry_safe(cmd, n, error_q, eh_entry) {
+		struct domain_device *dev = cmd_to_domain_dev(cmd);
+		struct asd_sas_port *x = dev->port;
+
+		if (x == port)
+			list_del_init(&cmd->eh_entry);
+	}
+}
+
+enum task_disposition {
+	TASK_IS_DONE,
+	TASK_IS_ABORTED,
+	TASK_IS_AT_LU,
+	TASK_IS_NOT_AT_LU,
+};
+
+static enum task_disposition sas_scsi_find_task(struct sas_task *task)
+{
+	struct sas_ha_struct *ha = task->dev->port->ha;
+	unsigned long flags;
+	int i, res;
+	struct sas_internal *si =
+		to_sas_internal(task->dev->port->ha->core.shost->transportt);
+
+	if (ha->lldd_max_execute_num > 1) {
+		struct scsi_core *core = &ha->core;
+		struct sas_task *t, *n;
+
+		spin_lock_irqsave(&core->task_queue_lock, flags);
+		list_for_each_entry_safe(t, n, &core->task_queue, list) {
+			if (task == t) {
+				list_del_init(&t->list);
+				spin_unlock_irqrestore(&core->task_queue_lock,
+						       flags);
+				SAS_DPRINTK("%s: task 0x%p aborted from "
+					    "task_queue\n",
+					    __FUNCTION__, task);
+				return TASK_IS_ABORTED;
+			}
+		}
+		spin_unlock_irqrestore(&core->task_queue_lock, flags);
+	}
+
+	for (i = 0; i < 5; i++) {
+		SAS_DPRINTK("%s: aborting task 0x%p\n", __FUNCTION__, task);
+		res = si->dft->lldd_abort_task(task);
+
+		spin_lock_irqsave(&task->task_state_lock, flags);
+		if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+			spin_unlock_irqrestore(&task->task_state_lock, flags);
+			SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__,
+				    task);
+			return TASK_IS_DONE;
+		}
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+		if (res == TMF_RESP_FUNC_COMPLETE) {
+			SAS_DPRINTK("%s: task 0x%p is aborted\n",
+				    __FUNCTION__, task);
+			return TASK_IS_ABORTED;
+		} else if (si->dft->lldd_query_task) {
+			SAS_DPRINTK("%s: querying task 0x%p\n",
+				    __FUNCTION__, task);
+			res = si->dft->lldd_query_task(task);
+			if (res == TMF_RESP_FUNC_SUCC) {
+				SAS_DPRINTK("%s: task 0x%p at LU\n",
+					    __FUNCTION__, task);
+				return TASK_IS_AT_LU;
+			} else if (res == TMF_RESP_FUNC_COMPLETE) {
+				SAS_DPRINTK("%s: task 0x%p not at LU\n",
+					    __FUNCTION__, task);
+				return TASK_IS_NOT_AT_LU;
+			}
+		}
+	}
+	return res;
+}
+
+static int sas_recover_lu(struct domain_device *dev, struct scsi_cmnd *cmd)
+{
+	int res = TMF_RESP_FUNC_FAILED;
+	struct scsi_lun lun;
+	struct sas_internal *i =
+		to_sas_internal(dev->port->ha->core.shost->transportt);
+
+	int_to_scsilun(cmd->device->lun, &lun);
+
+	SAS_DPRINTK("eh: device %llx LUN %x has the task\n",
+		    SAS_ADDR(dev->sas_addr),
+		    cmd->device->lun);
+
+	if (i->dft->lldd_abort_task_set)
+		res = i->dft->lldd_abort_task_set(dev, lun.scsi_lun);
+
+	if (res == TMF_RESP_FUNC_FAILED) {
+		if (i->dft->lldd_clear_task_set)
+			res = i->dft->lldd_clear_task_set(dev, lun.scsi_lun);
+	}
+
+	if (res == TMF_RESP_FUNC_FAILED) {
+		if (i->dft->lldd_lu_reset)
+			res = i->dft->lldd_lu_reset(dev, lun.scsi_lun);
+	}
+
+	return res;
+}
+
+static int sas_recover_I_T(struct domain_device *dev)
+{
+	int res = TMF_RESP_FUNC_FAILED;
+	struct sas_internal *i =
+		to_sas_internal(dev->port->ha->core.shost->transportt);
+
+	SAS_DPRINTK("I_T nexus reset for dev %016llx\n",
+		    SAS_ADDR(dev->sas_addr));
+
+	if (i->dft->lldd_I_T_nexus_reset)
+		res = i->dft->lldd_I_T_nexus_reset(dev);
+
+	return res;
+}
+
+void sas_scsi_recover_host(struct Scsi_Host *shost)
+{
+	struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
+	unsigned long flags;
+	LIST_HEAD(error_q);
+	struct scsi_cmnd *cmd, *n;
+	enum task_disposition res = TASK_IS_DONE;
+	int tmf_resp;
+	struct sas_internal *i = to_sas_internal(shost->transportt);
+
+	spin_lock_irqsave(shost->host_lock, flags);
+	list_splice_init(&shost->eh_cmd_q, &error_q);
+	spin_unlock_irqrestore(shost->host_lock, flags);
+
+	SAS_DPRINTK("Enter %s\n", __FUNCTION__);
+
+	/* All tasks on this list were marked SAS_TASK_STATE_ABORTED
+	 * by sas_scsi_timed_out() callback.
+	 */
+Again:
+	SAS_DPRINTK("going over list...\n");
+	list_for_each_entry_safe(cmd, n, &error_q, eh_entry) {
+		struct sas_task *task = TO_SAS_TASK(cmd);
+
+		SAS_DPRINTK("trying to find task 0x%p\n", task);
+		list_del_init(&cmd->eh_entry);
+		res = sas_scsi_find_task(task);
+
+		cmd->eh_eflags = 0;
+		shost->host_failed--;
+
+		switch (res) {
+		case TASK_IS_DONE:
+			SAS_DPRINTK("%s: task 0x%p is done\n", __FUNCTION__,
+				    task);
+			task->task_done(task);
+			continue;
+		case TASK_IS_ABORTED:
+			SAS_DPRINTK("%s: task 0x%p is aborted\n",
+				    __FUNCTION__, task);
+			task->task_done(task);
+			continue;
+		case TASK_IS_AT_LU:
+			SAS_DPRINTK("task 0x%p is at LU: lu recover\n", task);
+			tmf_resp = sas_recover_lu(task->dev, cmd);
+			if (tmf_resp == TMF_RESP_FUNC_COMPLETE) {
+				SAS_DPRINTK("dev %016llx LU %x is "
+					    "recovered\n",
+					    SAS_ADDR(task->dev),
+					    cmd->device->lun);
+				task->task_done(task);
+				sas_scsi_clear_queue_lu(&error_q, cmd);
+				goto Again;
+			}
+			/* fallthrough */
+		case TASK_IS_NOT_AT_LU:
+			SAS_DPRINTK("task 0x%p is not at LU: I_T recover\n",
+				    task);
+			tmf_resp = sas_recover_I_T(task->dev);
+			if (tmf_resp == TMF_RESP_FUNC_COMPLETE) {
+				SAS_DPRINTK("I_T %016llx recovered\n",
+					    SAS_ADDR(task->dev->sas_addr));
+				task->task_done(task);
+				sas_scsi_clear_queue_I_T(&error_q, task->dev);
+				goto Again;
+			}
+			/* Hammer time :-) */
+			if (i->dft->lldd_clear_nexus_port) {
+				struct asd_sas_port *port = task->dev->port;
+				SAS_DPRINTK("clearing nexus for port:%d\n",
+					    port->id);
+				res = i->dft->lldd_clear_nexus_port(port);
+				if (res == TMF_RESP_FUNC_COMPLETE) {
+					SAS_DPRINTK("clear nexus port:%d "
+						    "succeeded\n", port->id);
+					task->task_done(task);
+					sas_scsi_clear_queue_port(&error_q,
+								  port);
+					goto Again;
+				}
+			}
+			if (i->dft->lldd_clear_nexus_ha) {
+				SAS_DPRINTK("clear nexus ha\n");
+				res = i->dft->lldd_clear_nexus_ha(ha);
+				if (res == TMF_RESP_FUNC_COMPLETE) {
+					SAS_DPRINTK("clear nexus ha "
+						    "succeeded\n");
+					task->task_done(task);
+					goto out;
+				}
+			}
+			/* If we are here -- this means that no amount
+			 * of effort could recover from errors.  Quite
+			 * possibly the HA just disappeared.
+			 */
+			SAS_DPRINTK("error from  device %llx, LUN %x "
+				    "couldn't be recovered in any way\n",
+				    SAS_ADDR(task->dev->sas_addr),
+				    cmd->device->lun);
+
+			task->task_done(task);
+			goto clear_q;
+		}
+	}
+out:
+	SAS_DPRINTK("--- Exit %s\n", __FUNCTION__);
+	return;
+clear_q:
+	SAS_DPRINTK("--- Exit %s -- clear_q\n", __FUNCTION__);
+	list_for_each_entry_safe(cmd, n, &error_q, eh_entry) {
+		struct sas_task *task = TO_SAS_TASK(cmd);
+		list_del_init(&cmd->eh_entry);
+		task->task_done(task);
+	}
+}
+
+enum scsi_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
+{
+	struct sas_task *task = TO_SAS_TASK(cmd);
+	unsigned long flags;
+
+	if (!task) {
+		SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
+			    cmd, task);
+		return EH_HANDLED;
+	}
+
+	spin_lock_irqsave(&task->task_state_lock, flags);
+	if (task->task_state_flags & SAS_TASK_STATE_DONE) {
+		spin_unlock_irqrestore(&task->task_state_lock, flags);
+		SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_HANDLED\n",
+			    cmd, task);
+		return EH_HANDLED;
+	}
+	task->task_state_flags |= SAS_TASK_STATE_ABORTED;
+	spin_unlock_irqrestore(&task->task_state_lock, flags);
+
+	SAS_DPRINTK("command 0x%p, task 0x%p, timed out: EH_NOT_HANDLED\n",
+		    cmd, task);
+
+	return EH_NOT_HANDLED;
+}
+
+struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy)
+{
+	struct Scsi_Host *shost = dev_to_shost(rphy->dev.parent);
+	struct sas_ha_struct *ha = SHOST_TO_SAS_HA(shost);
+	struct domain_device *found_dev = NULL;
+	int i;
+
+	spin_lock(&ha->phy_port_lock);
+	for (i = 0; i < ha->num_phys; i++) {
+		struct asd_sas_port *port = ha->sas_port[i];
+		struct domain_device *dev;
+
+		spin_lock(&port->dev_list_lock);
+		list_for_each_entry(dev, &port->dev_list, dev_list_node) {
+			if (rphy == dev->rphy) {
+				found_dev = dev;
+				spin_unlock(&port->dev_list_lock);
+				goto found;
+			}
+		}
+		spin_unlock(&port->dev_list_lock);
+	}
+ found:
+	spin_unlock(&ha->phy_port_lock);
+
+	return found_dev;
+}
+
+static inline struct domain_device *sas_find_target(struct scsi_target *starget)
+{
+	struct sas_rphy *rphy = dev_to_rphy(starget->dev.parent);
+
+	return sas_find_dev_by_rphy(rphy);
+}
+
+int sas_target_alloc(struct scsi_target *starget)
+{
+	struct domain_device *found_dev = sas_find_target(starget);
+
+	if (!found_dev)
+		return -ENODEV;
+
+	starget->hostdata = found_dev;
+	return 0;
+}
+
+#define SAS_DEF_QD 32
+#define SAS_MAX_QD 64
+
+int sas_slave_configure(struct scsi_device *scsi_dev)
+{
+	struct domain_device *dev = sdev_to_domain_dev(scsi_dev);
+	struct sas_ha_struct *sas_ha;
+
+	BUG_ON(dev->rphy->identify.device_type != SAS_END_DEVICE);
+
+	sas_ha = dev->port->ha;
+
+	sas_read_port_mode_page(scsi_dev);
+
+	if (scsi_dev->tagged_supported) {
+		scsi_set_tag_type(scsi_dev, MSG_SIMPLE_TAG);
+		scsi_activate_tcq(scsi_dev, SAS_DEF_QD);
+	} else {
+		SAS_DPRINTK("device %llx, LUN %x doesn't support "
+			    "TCQ\n", SAS_ADDR(dev->sas_addr),
+			    scsi_dev->lun);
+		scsi_dev->tagged_supported = 0;
+		scsi_set_tag_type(scsi_dev, 0);
+		scsi_deactivate_tcq(scsi_dev, 1);
+	}
+
+	return 0;
+}
+
+void sas_slave_destroy(struct scsi_device *scsi_dev)
+{
+}
+
+int sas_change_queue_depth(struct scsi_device *scsi_dev, int new_depth)
+{
+	int res = min(new_depth, SAS_MAX_QD);
+
+	if (scsi_dev->tagged_supported)
+		scsi_adjust_queue_depth(scsi_dev, scsi_get_tag_type(scsi_dev),
+					res);
+	else {
+		struct domain_device *dev = sdev_to_domain_dev(scsi_dev);
+		sas_printk("device %llx LUN %x queue depth changed to 1\n",
+			   SAS_ADDR(dev->sas_addr),
+			   scsi_dev->lun);
+		scsi_adjust_queue_depth(scsi_dev, 0, 1);
+		res = 1;
+	}
+
+	return res;
+}
+
+int sas_change_queue_type(struct scsi_device *scsi_dev, int qt)
+{
+	if (!scsi_dev->tagged_supported)
+		return 0;
+
+	scsi_deactivate_tcq(scsi_dev, 1);
+
+	scsi_set_tag_type(scsi_dev, qt);
+	scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth);
+
+	return qt;
+}
+
+int sas_bios_param(struct scsi_device *scsi_dev,
+			  struct block_device *bdev,
+			  sector_t capacity, int *hsc)
+{
+	hsc[0] = 255;
+	hsc[1] = 63;
+	sector_div(capacity, 255*63);
+	hsc[2] = capacity;
+
+	return 0;
+}
+
+/* ---------- Task Collector Thread implementation ---------- */
+
+static void sas_queue(struct sas_ha_struct *sas_ha)
+{
+	struct scsi_core *core = &sas_ha->core;
+	unsigned long flags;
+	LIST_HEAD(q);
+	int can_queue;
+	int res;
+	struct sas_internal *i = to_sas_internal(core->shost->transportt);
+
+	spin_lock_irqsave(&core->task_queue_lock, flags);
+	while (!core->queue_thread_kill &&
+	       !list_empty(&core->task_queue)) {
+
+		can_queue = sas_ha->lldd_queue_size - core->task_queue_size;
+		if (can_queue >= 0) {
+			can_queue = core->task_queue_size;
+			list_splice_init(&core->task_queue, &q);
+		} else {
+			struct list_head *a, *n;
+
+			can_queue = sas_ha->lldd_queue_size;
+			list_for_each_safe(a, n, &core->task_queue) {
+				list_move_tail(a, &q);
+				if (--can_queue == 0)
+					break;
+			}
+			can_queue = sas_ha->lldd_queue_size;
+		}
+		core->task_queue_size -= can_queue;
+		spin_unlock_irqrestore(&core->task_queue_lock, flags);
+		{
+			struct sas_task *task = list_entry(q.next,
+							   struct sas_task,
+							   list);
+			list_del_init(&q);
+			res = i->dft->lldd_execute_task(task, can_queue,
+							GFP_KERNEL);
+			if (unlikely(res))
+				__list_add(&q, task->list.prev, &task->list);
+		}
+		spin_lock_irqsave(&core->task_queue_lock, flags);
+		if (res) {
+			list_splice_init(&q, &core->task_queue); /*at head*/
+			core->task_queue_size += can_queue;
+		}
+	}
+	spin_unlock_irqrestore(&core->task_queue_lock, flags);
+}
+
+static DECLARE_COMPLETION(queue_th_comp);
+
+/**
+ * sas_queue_thread -- The Task Collector thread
+ * @_sas_ha: pointer to struct sas_ha
+ */
+static int sas_queue_thread(void *_sas_ha)
+{
+	struct sas_ha_struct *sas_ha = _sas_ha;
+	struct scsi_core *core = &sas_ha->core;
+
+	daemonize("sas_queue_%d", core->shost->host_no);
+	current->flags |= PF_NOFREEZE;
+
+	complete(&queue_th_comp);
+
+	while (1) {
+		down_interruptible(&core->queue_thread_sema);
+		sas_queue(sas_ha);
+		if (core->queue_thread_kill)
+			break;
+	}
+
+	complete(&queue_th_comp);
+
+	return 0;
+}
+
+int sas_init_queue(struct sas_ha_struct *sas_ha)
+{
+	int res;
+	struct scsi_core *core = &sas_ha->core;
+
+	spin_lock_init(&core->task_queue_lock);
+	core->task_queue_size = 0;
+	INIT_LIST_HEAD(&core->task_queue);
+	init_MUTEX_LOCKED(&core->queue_thread_sema);
+
+	res = kernel_thread(sas_queue_thread, sas_ha, 0);
+	if (res >= 0)
+		wait_for_completion(&queue_th_comp);
+
+	return res < 0 ? res : 0;
+}
+
+void sas_shutdown_queue(struct sas_ha_struct *sas_ha)
+{
+	unsigned long flags;
+	struct scsi_core *core = &sas_ha->core;
+	struct sas_task *task, *n;
+
+	init_completion(&queue_th_comp);
+	core->queue_thread_kill = 1;
+	up(&core->queue_thread_sema);
+	wait_for_completion(&queue_th_comp);
+
+	if (!list_empty(&core->task_queue))
+		SAS_DPRINTK("HA: %llx: scsi core task queue is NOT empty!?\n",
+			    SAS_ADDR(sas_ha->sas_addr));
+
+	spin_lock_irqsave(&core->task_queue_lock, flags);
+	list_for_each_entry_safe(task, n, &core->task_queue, list) {
+		struct scsi_cmnd *cmd = task->uldd_task;
+
+		list_del_init(&task->list);
+
+		ASSIGN_SAS_TASK(cmd, NULL);
+		sas_free_task(task);
+		cmd->result = DID_ABORT << 16;
+		cmd->scsi_done(cmd);
+	}
+	spin_unlock_irqrestore(&core->task_queue_lock, flags);
+}
+
+EXPORT_SYMBOL_GPL(sas_queuecommand);
+EXPORT_SYMBOL_GPL(sas_target_alloc);
+EXPORT_SYMBOL_GPL(sas_slave_configure);
+EXPORT_SYMBOL_GPL(sas_slave_destroy);
+EXPORT_SYMBOL_GPL(sas_change_queue_depth);
+EXPORT_SYMBOL_GPL(sas_change_queue_type);
+EXPORT_SYMBOL_GPL(sas_bios_param);

drivers/scsi/lpfc/lpfc.h

@@ -285,6 +285,7 @@ struct lpfc_hba {
 	uint32_t cfg_log_verbose;
 	uint32_t cfg_lun_queue_depth;
 	uint32_t cfg_nodev_tmo;
+	uint32_t cfg_devloss_tmo;
 	uint32_t cfg_hba_queue_depth;
 	uint32_t cfg_fcp_class;
 	uint32_t cfg_use_adisc;
@@ -302,6 +303,9 @@ struct lpfc_hba {
 	uint32_t cfg_poll_tmo;
 	uint32_t cfg_sg_seg_cnt;
 	uint32_t cfg_sg_dma_buf_size;
+	uint64_t cfg_soft_wwpn;
+
+	uint32_t dev_loss_tmo_changed;
 
 	lpfc_vpd_t vpd;		/* vital product data */
 
@@ -351,6 +355,8 @@ struct lpfc_hba {
 #define VPD_PORT            0x8         /* valid vpd port data */
 #define VPD_MASK            0xf         /* mask for any vpd data */
 
+	uint8_t soft_wwpn_enable;
+
 	struct timer_list fcp_poll_timer;
 	struct timer_list els_tmofunc;
 
@@ -391,3 +397,5 @@ struct rnidrsp {
 	struct list_head list;
 	uint32_t data;
 };
+
+#define FC_REG_DUMP_EVENT	0x10	/* Register for Dump events */

drivers/scsi/lpfc/lpfc_attr.c

@@ -39,6 +39,9 @@
 #include "lpfc_compat.h"
 #include "lpfc_crtn.h"
 
+#define LPFC_DEF_DEVLOSS_TMO 30
+#define LPFC_MIN_DEVLOSS_TMO 1
+#define LPFC_MAX_DEVLOSS_TMO 255
 
 static void
 lpfc_jedec_to_ascii(int incr, char hdw[])
@@ -548,6 +551,119 @@ static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR,
 			 lpfc_board_mode_show, lpfc_board_mode_store);
 static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset);
 
+
+static char *lpfc_soft_wwpn_key = "C99G71SL8032A";
+
+static ssize_t
+lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf,
+				size_t count)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	unsigned int cnt = count;
+
+	/*
+	 * We're doing a simple sanity check for soft_wwpn setting.
+	 * We require that the user write a specific key to enable
+	 * the soft_wwpn attribute to be settable. Once the attribute
+	 * is written, the enable key resets. If further updates are
+	 * desired, the key must be written again to re-enable the
+	 * attribute.
+	 *
+	 * The "key" is not secret - it is a hardcoded string shown
+	 * here. The intent is to protect against the random user or
+	 * application that is just writing attributes.
+	 */
+
+	/* count may include a LF at end of string */
+	if (buf[cnt-1] == '\n')
+		cnt--;
+
+	if ((cnt != strlen(lpfc_soft_wwpn_key)) ||
+	    (strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0))
+		return -EINVAL;
+
+	phba->soft_wwpn_enable = 1;
+	return count;
+}
+static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL,
+				lpfc_soft_wwpn_enable_store);
+
+static ssize_t
+lpfc_soft_wwpn_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	return snprintf(buf, PAGE_SIZE, "0x%llx\n", phba->cfg_soft_wwpn);
+}
+
+
+static ssize_t
+lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	struct completion online_compl;
+	int stat1=0, stat2=0;
+	unsigned int i, j, cnt=count;
+	u8 wwpn[8];
+
+	/* count may include a LF at end of string */
+	if (buf[cnt-1] == '\n')
+		cnt--;
+
+	if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) ||
+	    ((cnt == 17) && (*buf++ != 'x')) ||
+	    ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
+		return -EINVAL;
+
+	phba->soft_wwpn_enable = 0;
+
+	memset(wwpn, 0, sizeof(wwpn));
+
+	/* Validate and store the new name */
+	for (i=0, j=0; i < 16; i++) {
+		if ((*buf >= 'a') && (*buf <= 'f'))
+			j = ((j << 4) | ((*buf++ -'a') + 10));
+		else if ((*buf >= 'A') && (*buf <= 'F'))
+			j = ((j << 4) | ((*buf++ -'A') + 10));
+		else if ((*buf >= '0') && (*buf <= '9'))
+			j = ((j << 4) | (*buf++ -'0'));
+		else
+			return -EINVAL;
+		if (i % 2) {
+			wwpn[i/2] = j & 0xff;
+			j = 0;
+		}
+	}
+	phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
+	fc_host_port_name(host) = phba->cfg_soft_wwpn;
+
+	dev_printk(KERN_NOTICE, &phba->pcidev->dev,
+		   "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no);
+
+	init_completion(&online_compl);
+	lpfc_workq_post_event(phba, &stat1, &online_compl, LPFC_EVT_OFFLINE);
+	wait_for_completion(&online_compl);
+	if (stat1)
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"%d:0463 lpfc_soft_wwpn attribute set failed to reinit "
+			"adapter - %d\n", phba->brd_no, stat1);
+
+	init_completion(&online_compl);
+	lpfc_workq_post_event(phba, &stat2, &online_compl, LPFC_EVT_ONLINE);
+	wait_for_completion(&online_compl);
+	if (stat2)
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"%d:0464 lpfc_soft_wwpn attribute set failed to reinit "
+			"adapter - %d\n", phba->brd_no, stat2);
+
+	return (stat1 || stat2) ? -EIO : count;
+}
+static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
+			 lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
+
+
 static int lpfc_poll = 0;
 module_param(lpfc_poll, int, 0);
 MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
@@ -558,6 +674,123 @@ MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:"
 static CLASS_DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR,
 			 lpfc_poll_show, lpfc_poll_store);
 
+/*
+# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
+# until the timer expires. Value range is [0,255]. Default value is 30.
+*/
+static int lpfc_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
+static int lpfc_devloss_tmo = LPFC_DEF_DEVLOSS_TMO;
+module_param(lpfc_nodev_tmo, int, 0);
+MODULE_PARM_DESC(lpfc_nodev_tmo,
+		 "Seconds driver will hold I/O waiting "
+		 "for a device to come back");
+static ssize_t
+lpfc_nodev_tmo_show(struct class_device *cdev, char *buf)
+{
+	struct Scsi_Host *host = class_to_shost(cdev);
+	struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata;
+	int val = 0;
+	val = phba->cfg_devloss_tmo;
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+			phba->cfg_devloss_tmo);
+}
+
+static int
+lpfc_nodev_tmo_init(struct lpfc_hba *phba, int val)
+{
+	static int warned;
+	if (phba->cfg_devloss_tmo !=  LPFC_DEF_DEVLOSS_TMO) {
+		phba->cfg_nodev_tmo = phba->cfg_devloss_tmo;
+		if (!warned && val != LPFC_DEF_DEVLOSS_TMO) {
+			warned = 1;
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"%d:0402 Ignoring nodev_tmo module "
+					"parameter because devloss_tmo is"
+					" set.\n",
+					phba->brd_no);
+		}
+		return 0;
+	}
+
+	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+		phba->cfg_nodev_tmo = val;
+		phba->cfg_devloss_tmo = val;
+		return 0;
+	}
+	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"%d:0400 lpfc_nodev_tmo attribute cannot be set to %d, "
+			"allowed range is [%d, %d]\n",
+			phba->brd_no, val,
+			LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO);
+	phba->cfg_nodev_tmo = LPFC_DEF_DEVLOSS_TMO;
+	return -EINVAL;
+}
+
+static int
+lpfc_nodev_tmo_set(struct lpfc_hba *phba, int val)
+{
+	if (phba->dev_loss_tmo_changed ||
+		(lpfc_devloss_tmo != LPFC_DEF_DEVLOSS_TMO)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"%d:0401 Ignoring change to nodev_tmo "
+				"because devloss_tmo is set.\n",
+				phba->brd_no);
+		return 0;
+	}
+
+	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+		phba->cfg_nodev_tmo = val;
+		phba->cfg_devloss_tmo = val;
+		return 0;
+	}
+
+	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"%d:0403 lpfc_nodev_tmo attribute cannot be set to %d, "
+			"allowed range is [%d, %d]\n",
+			phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
+			LPFC_MAX_DEVLOSS_TMO);
+	return -EINVAL;
+}
+
+lpfc_param_store(nodev_tmo)
+
+static CLASS_DEVICE_ATTR(lpfc_nodev_tmo, S_IRUGO | S_IWUSR,
+			 lpfc_nodev_tmo_show, lpfc_nodev_tmo_store);
+
+/*
+# lpfc_devloss_tmo: If set, it will hold all I/O errors on devices that
+# disappear until the timer expires. Value range is [0,255]. Default
+# value is 30.
+*/
+module_param(lpfc_devloss_tmo, int, 0);
+MODULE_PARM_DESC(lpfc_devloss_tmo,
+		 "Seconds driver will hold I/O waiting "
+		 "for a device to come back");
+lpfc_param_init(devloss_tmo, LPFC_DEF_DEVLOSS_TMO,
+		LPFC_MIN_DEVLOSS_TMO, LPFC_MAX_DEVLOSS_TMO)
+lpfc_param_show(devloss_tmo)
+static int
+lpfc_devloss_tmo_set(struct lpfc_hba *phba, int val)
+{
+	if (val >= LPFC_MIN_DEVLOSS_TMO && val <= LPFC_MAX_DEVLOSS_TMO) {
+		phba->cfg_nodev_tmo = val;
+		phba->cfg_devloss_tmo = val;
+		phba->dev_loss_tmo_changed = 1;
+		return 0;
+	}
+
+	lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"%d:0404 lpfc_devloss_tmo attribute cannot be set to"
+			" %d, allowed range is [%d, %d]\n",
+			phba->brd_no, val, LPFC_MIN_DEVLOSS_TMO,
+			LPFC_MAX_DEVLOSS_TMO);
+	return -EINVAL;
+}
+
+lpfc_param_store(devloss_tmo)
+static CLASS_DEVICE_ATTR(lpfc_devloss_tmo, S_IRUGO | S_IWUSR,
+	lpfc_devloss_tmo_show, lpfc_devloss_tmo_store);
+
 /*
 # lpfc_log_verbose: Only turn this flag on if you are willing to risk being
 # deluged with LOTS of information.
@@ -616,14 +849,6 @@ LPFC_ATTR_R(hba_queue_depth, 8192, 32, 8192,
 LPFC_ATTR_R(scan_down, 1, 0, 1,
 	     "Start scanning for devices from highest ALPA to lowest");
 
-/*
-# lpfc_nodev_tmo: If set, it will hold all I/O errors on devices that disappear
-# until the timer expires. Value range is [0,255]. Default value is 30.
-# NOTE: this MUST be less then the SCSI Layer command timeout - 1.
-*/
-LPFC_ATTR_RW(nodev_tmo, 30, 0, 255,
-	     "Seconds driver will hold I/O waiting for a device to come back");
-
 /*
 # lpfc_topology:  link topology for init link
 #            0x0  = attempt loop mode then point-to-point
@@ -720,6 +945,7 @@ LPFC_ATTR_R(max_luns, 255, 0, 65535,
 LPFC_ATTR_RW(poll_tmo, 10, 1, 255,
 	     "Milliseconds driver will wait between polling FCP ring");
 
+
 struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_info,
 	&class_device_attr_serialnum,
@@ -737,6 +963,7 @@ struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_lpfc_lun_queue_depth,
 	&class_device_attr_lpfc_hba_queue_depth,
 	&class_device_attr_lpfc_nodev_tmo,
+	&class_device_attr_lpfc_devloss_tmo,
 	&class_device_attr_lpfc_fcp_class,
 	&class_device_attr_lpfc_use_adisc,
 	&class_device_attr_lpfc_ack0,
@@ -754,6 +981,8 @@ struct class_device_attribute *lpfc_host_attrs[] = {
 	&class_device_attr_issue_reset,
 	&class_device_attr_lpfc_poll,
 	&class_device_attr_lpfc_poll_tmo,
+	&class_device_attr_lpfc_soft_wwpn,
+	&class_device_attr_lpfc_soft_wwpn_enable,
 	NULL,
 };
 
@@ -1204,6 +1433,15 @@ lpfc_get_host_fabric_name (struct Scsi_Host *shost)
 	fc_host_fabric_name(shost) = node_name;
 }
 
+static void
+lpfc_get_host_symbolic_name (struct Scsi_Host *shost)
+{
+	struct lpfc_hba *phba = (struct lpfc_hba*)shost->hostdata;
+
+	spin_lock_irq(shost->host_lock);
+	lpfc_get_hba_sym_node_name(phba, fc_host_symbolic_name(shost));
+	spin_unlock_irq(shost->host_lock);
+}
 
 static struct fc_host_statistics *
 lpfc_get_stats(struct Scsi_Host *shost)
@@ -1440,28 +1678,13 @@ lpfc_get_starget_port_name(struct scsi_target *starget)
 	fc_starget_port_name(starget) = port_name;
 }
 
-static void
-lpfc_get_rport_loss_tmo(struct fc_rport *rport)
-{
-	/*
-	 * Return the driver's global value for device loss timeout plus
-	 * five seconds to allow the driver's nodev timer to run.
-	 */
-	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
-}
-
 static void
 lpfc_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout)
 {
-	/*
-	 * The driver doesn't have a per-target timeout setting.  Set
-	 * this value globally. lpfc_nodev_tmo should be greater then 0.
-	 */
 	if (timeout)
-		lpfc_nodev_tmo = timeout;
+		rport->dev_loss_tmo = timeout;
 	else
-		lpfc_nodev_tmo = 1;
+		rport->dev_loss_tmo = 1;
-	rport->dev_loss_tmo = lpfc_nodev_tmo + 5;
 }
 
 
@@ -1486,7 +1709,6 @@ struct fc_function_template lpfc_transport_functions = {
 	.show_host_port_name = 1,
 	.show_host_supported_classes = 1,
 	.show_host_supported_fc4s = 1,
-	.show_host_symbolic_name = 1,
 	.show_host_supported_speeds = 1,
 	.show_host_maxframe_size = 1,
 
@@ -1509,6 +1731,9 @@ struct fc_function_template lpfc_transport_functions = {
 	.get_host_fabric_name = lpfc_get_host_fabric_name,
 	.show_host_fabric_name = 1,
 
+	.get_host_symbolic_name = lpfc_get_host_symbolic_name,
+	.show_host_symbolic_name = 1,
+
 	/*
 	 * The LPFC driver treats linkdown handling as target loss events
 	 * so there are no sysfs handlers for link_down_tmo.
@@ -1521,7 +1746,6 @@ struct fc_function_template lpfc_transport_functions = {
 	.show_rport_maxframe_size = 1,
 	.show_rport_supported_classes = 1,
 
-	.get_rport_dev_loss_tmo = lpfc_get_rport_loss_tmo,
 	.set_rport_dev_loss_tmo = lpfc_set_rport_loss_tmo,
 	.show_rport_dev_loss_tmo = 1,
 
@@ -1535,6 +1759,8 @@ struct fc_function_template lpfc_transport_functions = {
 	.show_starget_port_name = 1,
 
 	.issue_fc_host_lip = lpfc_issue_lip,
+	.dev_loss_tmo_callbk = lpfc_dev_loss_tmo_callbk,
+	.terminate_rport_io = lpfc_terminate_rport_io,
 };
 
 void
@@ -1550,14 +1776,15 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
 	lpfc_ack0_init(phba, lpfc_ack0);
 	lpfc_topology_init(phba, lpfc_topology);
 	lpfc_scan_down_init(phba, lpfc_scan_down);
-	lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
 	lpfc_link_speed_init(phba, lpfc_link_speed);
 	lpfc_fdmi_on_init(phba, lpfc_fdmi_on);
 	lpfc_discovery_threads_init(phba, lpfc_discovery_threads);
 	lpfc_max_luns_init(phba, lpfc_max_luns);
 	lpfc_poll_tmo_init(phba, lpfc_poll_tmo);
-
+	lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo);
+	lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo);
 	phba->cfg_poll = lpfc_poll;
+	phba->cfg_soft_wwpn = 0L;
 
 	/*
 	 * The total number of segments is the configuration value plus 2

drivers/scsi/lpfc/lpfc_crtn.h

@@ -18,6 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
+struct fc_rport;
 void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
 void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *);
 int lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
@@ -200,6 +201,8 @@ extern struct scsi_host_template lpfc_template;
 extern struct fc_function_template lpfc_transport_functions;
 
 void lpfc_get_hba_sym_node_name(struct lpfc_hba * phba, uint8_t * symbp);
+void lpfc_terminate_rport_io(struct fc_rport *);
+void lpfc_dev_loss_tmo_callbk(struct fc_rport *rport);
 
 #define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
 #define HBA_EVENT_RSCN                   5

drivers/scsi/lpfc/lpfc_ct.c

@@ -324,7 +324,6 @@ lpfc_ns_rsp(struct lpfc_hba * phba, struct lpfc_dmabuf * mp, uint32_t Size)
 	struct lpfc_sli_ct_request *Response =
 		(struct lpfc_sli_ct_request *) mp->virt;
 	struct lpfc_nodelist *ndlp = NULL;
-	struct lpfc_nodelist *next_ndlp;
 	struct lpfc_dmabuf *mlast, *next_mp;
 	uint32_t *ctptr = (uint32_t *) & Response->un.gid.PortType;
 	uint32_t Did;
@@ -399,30 +398,6 @@ nsout1:
  	 * current driver state.
  	 */
 	if (phba->hba_state == LPFC_HBA_READY) {
-
-		/*
-		 * Switch ports that connect a loop of multiple targets need
-		 * special consideration.  The driver wants to unregister the
-		 * rpi only on the target that was pulled from the loop.  On
-		 * RSCN, the driver wants to rediscover an NPort only if the
-		 * driver flagged it as NLP_NPR_2B_DISC.  Provided adisc is
-		 * not enabled and the NPort is not capable of retransmissions
-		 * (FC Tape) prevent timing races with the scsi error handler by
-		 * unregistering the Nport's RPI.  This action causes all
-		 * outstanding IO to flush back to the midlayer.
-		 */
-		list_for_each_entry_safe(ndlp, next_ndlp, &phba->fc_npr_list,
-					 nlp_listp) {
-			if (!(ndlp->nlp_flag & NLP_NPR_2B_DISC) &&
-			    (lpfc_rscn_payload_check(phba, ndlp->nlp_DID))) {
-				if ((phba->cfg_use_adisc == 0) &&
-				    !(ndlp->nlp_fcp_info &
-				      NLP_FCP_2_DEVICE)) {
-					lpfc_unreg_rpi(phba, ndlp);
-					ndlp->nlp_flag &= ~NLP_NPR_ADISC;
-				}
-			}
-		}
 		lpfc_els_flush_rscn(phba);
 		spin_lock_irq(phba->host->host_lock);
 		phba->fc_flag |= FC_RSCN_MODE; /* we are still in RSCN mode */

drivers/scsi/lpfc/lpfc_disc.h

@@ -30,7 +30,6 @@
 
 /* worker thread events */
 enum lpfc_work_type {
-	LPFC_EVT_NODEV_TMO,
 	LPFC_EVT_ONLINE,
 	LPFC_EVT_OFFLINE,
 	LPFC_EVT_WARM_START,
@@ -74,11 +73,9 @@ struct lpfc_nodelist {
 #define NLP_FCP_2_DEVICE   0x10			/* FCP-2 device */
 
 	struct timer_list   nlp_delayfunc;	/* Used for delayed ELS cmds */
-	struct timer_list   nlp_tmofunc;	/* Used for nodev tmo */
 	struct fc_rport *rport;			/* Corresponding FC transport
 						   port structure */
 	struct lpfc_hba      *nlp_phba;
-	struct lpfc_work_evt nodev_timeout_evt;
 	struct lpfc_work_evt els_retry_evt;
 	unsigned long last_ramp_up_time;        /* jiffy of last ramp up */
 	unsigned long last_q_full_time;		/* jiffy of last queue full */
@@ -102,7 +99,6 @@ struct lpfc_nodelist {
 #define NLP_LOGO_SND       0x100	/* sent LOGO request for this entry */
 #define NLP_RNID_SND       0x400	/* sent RNID request for this entry */
 #define NLP_ELS_SND_MASK   0x7e0	/* sent ELS request for this entry */
-#define NLP_NODEV_TMO      0x10000	/* nodev timeout is running for node */
 #define NLP_DELAY_TMO      0x20000	/* delay timeout is running for node */
 #define NLP_NPR_2B_DISC    0x40000	/* node is included in num_disc_nodes */
 #define NLP_RCV_PLOGI      0x80000	/* Rcv'ed PLOGI from remote system */
@@ -169,7 +165,7 @@ struct lpfc_nodelist {
  */
 /*
  * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
- * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
+ * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
  * expire, all effected nodes will receive a DEVICE_RM event.
  */
 /*

drivers/scsi/lpfc/lpfc_els.c

@@ -2506,6 +2506,7 @@ lpfc_els_rcv_rscn(struct lpfc_hba * phba,
 	uint32_t *lp;
 	IOCB_t *icmd;
 	uint32_t payload_len, cmd;
+	int i;
 
 	icmd = &cmdiocb->iocb;
 	pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
@@ -2524,6 +2525,10 @@ lpfc_els_rcv_rscn(struct lpfc_hba * phba,
 			phba->brd_no,
 			phba->fc_flag, payload_len, *lp, phba->fc_rscn_id_cnt);
 
+	for (i = 0; i < payload_len/sizeof(uint32_t); i++)
+		fc_host_post_event(phba->host, fc_get_event_number(),
+			FCH_EVT_RSCN, lp[i]);
+
 	/* If we are about to begin discovery, just ACC the RSCN.
 	 * Discovery processing will satisfy it.
 	 */

drivers/scsi/lpfc/lpfc_hbadisc.c

@@ -56,28 +56,63 @@ static uint8_t lpfcAlpaArray[] = {
 
 static void lpfc_disc_timeout_handler(struct lpfc_hba *);
 
-static void
+void
-lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
+lpfc_terminate_rport_io(struct fc_rport *rport)
 {
-	uint8_t *name = (uint8_t *)&ndlp->nlp_portname;
+	struct lpfc_rport_data *rdata;
-	int warn_on = 0;
+	struct lpfc_nodelist * ndlp;
+	struct lpfc_hba *phba;
 
-	spin_lock_irq(phba->host->host_lock);
+	rdata = rport->dd_data;
-	if (!(ndlp->nlp_flag & NLP_NODEV_TMO)) {
+	ndlp = rdata->pnode;
-		spin_unlock_irq(phba->host->host_lock);
+
+	if (!ndlp) {
+		if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+			printk(KERN_ERR "Cannot find remote node"
+			" to terminate I/O Data x%x\n",
+			rport->port_id);
 		return;
 	}
 
-	/*
+	phba = ndlp->nlp_phba;
-	 * If a discovery event readded nodev_timer after timer
-	 * firing and before processing the timer, cancel the
-	 * nlp_tmofunc.
-	 */
-	spin_unlock_irq(phba->host->host_lock);
-	del_timer_sync(&ndlp->nlp_tmofunc);
-	spin_lock_irq(phba->host->host_lock);
 
-	ndlp->nlp_flag &= ~NLP_NODEV_TMO;
+	spin_lock_irq(phba->host->host_lock);
+	if (ndlp->nlp_sid != NLP_NO_SID) {
+		lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
+			ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
+	}
+	spin_unlock_irq(phba->host->host_lock);
+
+	return;
+}
+
+/*
+ * This function will be called when dev_loss_tmo fire.
+ */
+void
+lpfc_dev_loss_tmo_callbk(struct fc_rport *rport)
+{
+	struct lpfc_rport_data *rdata;
+	struct lpfc_nodelist * ndlp;
+	uint8_t *name;
+	int warn_on = 0;
+	struct lpfc_hba *phba;
+
+	rdata = rport->dd_data;
+	ndlp = rdata->pnode;
+
+	if (!ndlp) {
+		if (rport->roles & FC_RPORT_ROLE_FCP_TARGET)
+			printk(KERN_ERR "Cannot find remote node"
+			" for rport in dev_loss_tmo_callbk x%x\n",
+			rport->port_id);
+		return;
+	}
+
+	name = (uint8_t *)&ndlp->nlp_portname;
+	phba = ndlp->nlp_phba;
+
+	spin_lock_irq(phba->host->host_lock);
 
 	if (ndlp->nlp_sid != NLP_NO_SID) {
 		warn_on = 1;
@@ -85,11 +120,14 @@ lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 		lpfc_sli_abort_iocb(phba, &phba->sli.ring[phba->sli.fcp_ring],
 			ndlp->nlp_sid, 0, 0, LPFC_CTX_TGT);
 	}
+	if (phba->fc_flag & FC_UNLOADING)
+		warn_on = 0;
+
 	spin_unlock_irq(phba->host->host_lock);
 
 	if (warn_on) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY,
-				"%d:0203 Nodev timeout on "
+				"%d:0203 Devloss timeout on "
 				"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 				"NPort x%x Data: x%x x%x x%x\n",
 				phba->brd_no,
@@ -99,7 +137,7 @@ lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 				ndlp->nlp_state, ndlp->nlp_rpi);
 	} else {
 		lpfc_printf_log(phba, KERN_INFO, LOG_DISCOVERY,
-				"%d:0204 Nodev timeout on "
+				"%d:0204 Devloss timeout on "
 				"WWPN %x:%x:%x:%x:%x:%x:%x:%x "
 				"NPort x%x Data: x%x x%x x%x\n",
 				phba->brd_no,
@@ -109,7 +147,12 @@ lpfc_process_nodev_timeout(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp)
 				ndlp->nlp_state, ndlp->nlp_rpi);
 	}
 
-	lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
+	ndlp->rport = NULL;
+	rdata->pnode = NULL;
+
+	if (!(phba->fc_flag & FC_UNLOADING))
+		lpfc_disc_state_machine(phba, ndlp, NULL, NLP_EVT_DEVICE_RM);
+
 	return;
 }
 
@@ -127,11 +170,6 @@ lpfc_work_list_done(struct lpfc_hba * phba)
 		spin_unlock_irq(phba->host->host_lock);
 		free_evt = 1;
 		switch (evtp->evt) {
-		case LPFC_EVT_NODEV_TMO:
-			ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
-			lpfc_process_nodev_timeout(phba, ndlp);
-			free_evt = 0;
-			break;
 		case LPFC_EVT_ELS_RETRY:
 			ndlp = (struct lpfc_nodelist *)(evtp->evt_arg1);
 			lpfc_els_retry_delay_handler(ndlp);
@@ -340,6 +378,9 @@ lpfc_linkdown(struct lpfc_hba * phba)
 		spin_unlock_irq(phba->host->host_lock);
 	}
 
+	fc_host_post_event(phba->host, fc_get_event_number(),
+			FCH_EVT_LINKDOWN, 0);
+
 	/* Clean up any firmware default rpi's */
 	if ((mb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL))) {
 		lpfc_unreg_did(phba, 0xffffffff, mb);
@@ -374,16 +415,6 @@ lpfc_linkdown(struct lpfc_hba * phba)
 			rc = lpfc_disc_state_machine(phba, ndlp, NULL,
 					     NLP_EVT_DEVICE_RECOVERY);
 
-			/* Check config parameter use-adisc or FCP-2 */
-			if ((rc != NLP_STE_FREED_NODE) &&
-				(phba->cfg_use_adisc == 0) &&
-				!(ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE)) {
-				/* We know we will have to relogin, so
-				 * unreglogin the rpi right now to fail
-				 * any outstanding I/Os quickly.
-				 */
-				lpfc_unreg_rpi(phba, ndlp);
-			}
 		}
 	}
 
@@ -427,6 +458,9 @@ lpfc_linkup(struct lpfc_hba * phba)
 	struct list_head *listp, *node_list[7];
 	int i;
 
+	fc_host_post_event(phba->host, fc_get_event_number(),
+			FCH_EVT_LINKUP, 0);
+
 	spin_lock_irq(phba->host->host_lock);
 	phba->hba_state = LPFC_LINK_UP;
 	phba->fc_flag &= ~(FC_PT2PT | FC_PT2PT_PLOGI | FC_ABORT_DISCOVERY |
@@ -638,6 +672,8 @@ lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 
 	memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt,
 	       sizeof (struct serv_parm));
+	if (phba->cfg_soft_wwpn)
+		u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 	memcpy((uint8_t *) & phba->fc_nodename,
 	       (uint8_t *) & phba->fc_sparam.nodeName,
 	       sizeof (struct lpfc_name));
@@ -1098,8 +1134,11 @@ lpfc_unregister_remote_port(struct lpfc_hba * phba,
 	struct fc_rport *rport = ndlp->rport;
 	struct lpfc_rport_data *rdata = rport->dd_data;
 
-	ndlp->rport = NULL;
+	if (rport->scsi_target_id == -1) {
-	rdata->pnode = NULL;
+		ndlp->rport = NULL;
+		rdata->pnode = NULL;
+	}
+
 	fc_remote_port_delete(rport);
 
 	return;
@@ -1227,17 +1266,6 @@ lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
 		list_add_tail(&nlp->nlp_listp, &phba->fc_nlpunmap_list);
 		phba->fc_unmap_cnt++;
 		phba->nport_event_cnt++;
-		/* stop nodev tmo if running */
-		if (nlp->nlp_flag & NLP_NODEV_TMO) {
-			nlp->nlp_flag &= ~NLP_NODEV_TMO;
-			spin_unlock_irq(phba->host->host_lock);
-			del_timer_sync(&nlp->nlp_tmofunc);
-			spin_lock_irq(phba->host->host_lock);
-			if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
-				list_del_init(&nlp->nodev_timeout_evt.
-						evt_listp);
-
-		}
 		nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
 		nlp->nlp_type |= NLP_FC_NODE;
 		break;
@@ -1248,17 +1276,6 @@ lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
 		list_add_tail(&nlp->nlp_listp, &phba->fc_nlpmap_list);
 		phba->fc_map_cnt++;
 		phba->nport_event_cnt++;
-		/* stop nodev tmo if running */
-		if (nlp->nlp_flag & NLP_NODEV_TMO) {
-			nlp->nlp_flag &= ~NLP_NODEV_TMO;
-			spin_unlock_irq(phba->host->host_lock);
-			del_timer_sync(&nlp->nlp_tmofunc);
-			spin_lock_irq(phba->host->host_lock);
-			if (!list_empty(&nlp->nodev_timeout_evt.evt_listp))
-				list_del_init(&nlp->nodev_timeout_evt.
-						evt_listp);
-
-		}
 		nlp->nlp_flag &= ~NLP_NODEV_REMOVE;
 		break;
 	case NLP_NPR_LIST:
@@ -1267,11 +1284,6 @@ lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
 		list_add_tail(&nlp->nlp_listp, &phba->fc_npr_list);
 		phba->fc_npr_cnt++;
 
-		if (!(nlp->nlp_flag & NLP_NODEV_TMO))
-			mod_timer(&nlp->nlp_tmofunc,
-		 			jiffies + HZ * phba->cfg_nodev_tmo);
-
-		nlp->nlp_flag |= NLP_NODEV_TMO;
 		nlp->nlp_flag &= ~NLP_RCV_PLOGI;
 		break;
 	case NLP_JUST_DQ:
@@ -1301,7 +1313,8 @@ lpfc_nlp_list(struct lpfc_hba * phba, struct lpfc_nodelist * nlp, int list)
 			 * already. If we have, and it's a scsi entity, be
 			 * sure to unblock any attached scsi devices
 			 */
-			if (!nlp->rport)
+			if ((!nlp->rport) || (nlp->rport->port_state ==
+					FC_PORTSTATE_BLOCKED))
 				lpfc_register_remote_port(phba, nlp);
 
 			/*
@@ -1575,15 +1588,12 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
 
 	lpfc_els_abort(phba,ndlp,0);
 	spin_lock_irq(phba->host->host_lock);
-	ndlp->nlp_flag &= ~(NLP_NODEV_TMO|NLP_DELAY_TMO);
+	ndlp->nlp_flag &= ~NLP_DELAY_TMO;
 	spin_unlock_irq(phba->host->host_lock);
-	del_timer_sync(&ndlp->nlp_tmofunc);
 
 	ndlp->nlp_last_elscmd = 0;
 	del_timer_sync(&ndlp->nlp_delayfunc);
 
-	if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
-		list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
 	if (!list_empty(&ndlp->els_retry_evt.evt_listp))
 		list_del_init(&ndlp->els_retry_evt.evt_listp);
 
@@ -1600,16 +1610,6 @@ lpfc_freenode(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
 int
 lpfc_nlp_remove(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp)
 {
-	if (ndlp->nlp_flag & NLP_NODEV_TMO) {
-		spin_lock_irq(phba->host->host_lock);
-		ndlp->nlp_flag &= ~NLP_NODEV_TMO;
-		spin_unlock_irq(phba->host->host_lock);
-		del_timer_sync(&ndlp->nlp_tmofunc);
-		if (!list_empty(&ndlp->nodev_timeout_evt.evt_listp))
-			list_del_init(&ndlp->nodev_timeout_evt.evt_listp);
-
-	}
-
 
 	if (ndlp->nlp_flag & NLP_DELAY_TMO) {
 		lpfc_cancel_retry_delay_tmo(phba, ndlp);
@@ -2424,34 +2424,6 @@ lpfc_disc_timeout_handler(struct lpfc_hba *phba)
 	return;
 }
 
-static void
-lpfc_nodev_timeout(unsigned long ptr)
-{
-	struct lpfc_hba *phba;
-	struct lpfc_nodelist *ndlp;
-	unsigned long iflag;
-	struct lpfc_work_evt  *evtp;
-
-	ndlp = (struct lpfc_nodelist *)ptr;
-	phba = ndlp->nlp_phba;
-	evtp = &ndlp->nodev_timeout_evt;
-	spin_lock_irqsave(phba->host->host_lock, iflag);
-
-	if (!list_empty(&evtp->evt_listp)) {
-		spin_unlock_irqrestore(phba->host->host_lock, iflag);
-		return;
-	}
-	evtp->evt_arg1  = ndlp;
-	evtp->evt       = LPFC_EVT_NODEV_TMO;
-	list_add_tail(&evtp->evt_listp, &phba->work_list);
-	if (phba->work_wait)
-		wake_up(phba->work_wait);
-
-	spin_unlock_irqrestore(phba->host->host_lock, iflag);
-	return;
-}
-
-
 /*
  * This routine handles processing a NameServer REG_LOGIN mailbox
  * command upon completion. It is setup in the LPFC_MBOXQ
@@ -2575,11 +2547,7 @@ lpfc_nlp_init(struct lpfc_hba * phba, struct lpfc_nodelist * ndlp,
 		 uint32_t did)
 {
 	memset(ndlp, 0, sizeof (struct lpfc_nodelist));
-	INIT_LIST_HEAD(&ndlp->nodev_timeout_evt.evt_listp);
 	INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
-	init_timer(&ndlp->nlp_tmofunc);
-	ndlp->nlp_tmofunc.function = lpfc_nodev_timeout;
-	ndlp->nlp_tmofunc.data = (unsigned long)ndlp;
 	init_timer(&ndlp->nlp_delayfunc);
 	ndlp->nlp_delayfunc.function = lpfc_els_retry_delay;
 	ndlp->nlp_delayfunc.data = (unsigned long)ndlp;

drivers/scsi/lpfc/lpfc_init.c

@@ -268,6 +268,8 @@ lpfc_config_port_post(struct lpfc_hba * phba)
 	kfree(mp);
 	pmb->context1 = NULL;
 
+	if (phba->cfg_soft_wwpn)
+		u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn);
 	memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName,
 	       sizeof (struct lpfc_name));
 	memcpy(&phba->fc_portname, &phba->fc_sparam.portName,
@@ -511,6 +513,7 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
 {
 	struct lpfc_sli *psli = &phba->sli;
 	struct lpfc_sli_ring  *pring;
+	uint32_t event_data;
 
 	if (phba->work_hs & HS_FFER6) {
 		/* Re-establishing Link */
@@ -555,6 +558,11 @@ lpfc_handle_eratt(struct lpfc_hba * phba)
 				phba->brd_no, phba->work_hs,
 				phba->work_status[0], phba->work_status[1]);
 
+		event_data = FC_REG_DUMP_EVENT;
+		fc_host_post_vendor_event(phba->host, fc_get_event_number(),
+				sizeof(event_data), (char *) &event_data,
+				SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+
 		psli->sli_flag &= ~LPFC_SLI2_ACTIVE;
 		lpfc_offline(phba);
 		phba->hba_state = LPFC_HBA_ERROR;

drivers/scsi/lpfc/lpfc_nportdisc.c

@@ -1813,7 +1813,7 @@ lpfc_device_recov_npr_node(struct lpfc_hba * phba,
  */
 /*
  * For a Link Down, all nodes on the ADISC, PLOGI, unmapped or mapped
- * lists will receive a DEVICE_RECOVERY event. If the linkdown or nodev timers
+ * lists will receive a DEVICE_RECOVERY event. If the linkdown or devloss timers
  * expire, all effected nodes will receive a DEVICE_RM event.
  */
 /*

drivers/scsi/lpfc/lpfc_scsi.c

@@ -935,7 +935,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 			schedule_timeout_uninterruptible(LPFC_ABORT_WAIT*HZ);
 		spin_lock_irq(phba->host->host_lock);
 		if (++loop_count
-		    > (2 * phba->cfg_nodev_tmo)/LPFC_ABORT_WAIT)
+		    > (2 * phba->cfg_devloss_tmo)/LPFC_ABORT_WAIT)
 			break;
 	}
 
@@ -978,7 +978,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 	spin_lock_irq(shost->host_lock);
 	/*
 	 * If target is not in a MAPPED state, delay the reset until
-	 * target is rediscovered or nodev timeout expires.
+	 * target is rediscovered or devloss timeout expires.
 	 */
 	while ( 1 ) {
 		if (!pnode)
@@ -1050,7 +1050,7 @@ lpfc_reset_lun_handler(struct scsi_cmnd *cmnd)
 		spin_lock_irq(phba->host->host_lock);
 
 		if (++loopcnt
-		    > (2 * phba->cfg_nodev_tmo)/LPFC_RESET_WAIT)
+		    > (2 * phba->cfg_devloss_tmo)/LPFC_RESET_WAIT)
 			break;
 
 		cnt = lpfc_sli_sum_iocb(phba,
@@ -1151,7 +1151,7 @@ lpfc_reset_bus_handler(struct scsi_cmnd *cmnd)
 		spin_lock_irq(phba->host->host_lock);
 
 		if (++loopcnt
-		    > (2 * phba->cfg_nodev_tmo)/LPFC_RESET_WAIT)
+		    > (2 * phba->cfg_devloss_tmo)/LPFC_RESET_WAIT)
 			break;
 
 		cnt = lpfc_sli_sum_iocb(phba,
@@ -1249,7 +1249,7 @@ lpfc_slave_configure(struct scsi_device *sdev)
 	 * target pointer is stored in the starget_data for the
 	 * driver's sysfs entry point functions.
 	 */
-	rport->dev_loss_tmo = phba->cfg_nodev_tmo + 5;
+	rport->dev_loss_tmo = phba->cfg_devloss_tmo;
 
 	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
 		lpfc_sli_poll_fcp_ring(phba);

drivers/scsi/lpfc/lpfc_version.h

@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.1.9"
+#define LPFC_DRIVER_VERSION "8.1.10"
 
 #define LPFC_DRIVER_NAME "lpfc"
 

drivers/scsi/megaraid.c

@@ -2822,9 +2822,7 @@ mega_print_inquiry(char *page, char *scsi_inq)
 
 	i = scsi_inq[0] & 0x1f;
 
-	len += sprintf(page+len, "  Type:   %s ",
+	len += sprintf(page+len, "  Type:   %s ", scsi_device_type(i));
-		i < MAX_SCSI_DEVICE_CODE ? scsi_device_types[i] :
-		   "Unknown          ");
 
 	len += sprintf(page+len,
 	"                 ANSI SCSI revision: %02x", scsi_inq[2] & 0x07);
@@ -3658,8 +3656,9 @@ megadev_ioctl(struct inode *inode, struct file *filep, unsigned int cmd,
 			 * Send the request sense data also, irrespective of
 			 * whether the user has asked for it or not.
 			 */
-			copy_to_user(upthru->reqsensearea,
+			if (copy_to_user(upthru->reqsensearea,
-					pthru->reqsensearea, 14);
+					pthru->reqsensearea, 14))
+				rval = -EFAULT;
 
 freemem_and_return:
 			if( pthru->dataxferlen ) {

drivers/scsi/megaraid/megaraid_mbox.c

@@ -330,6 +330,21 @@ static struct device_attribute *megaraid_sdev_attrs[] = {
 	NULL,
 };
 
+/**
+ * megaraid_change_queue_depth - Change the device's queue depth
+ * @sdev:	scsi device struct
+ * @qdepth:	depth to set
+ *
+ * Return value:
+ * 	actual depth set
+ **/
+static int megaraid_change_queue_depth(struct scsi_device *sdev, int qdepth)
+{
+	if (qdepth > MBOX_MAX_SCSI_CMDS)
+		qdepth = MBOX_MAX_SCSI_CMDS;
+	scsi_adjust_queue_depth(sdev, 0, qdepth);
+	return sdev->queue_depth;
+}
 
 /*
  * Scsi host template for megaraid unified driver
@@ -343,6 +358,7 @@ static struct scsi_host_template megaraid_template_g = {
 	.eh_device_reset_handler	= megaraid_reset_handler,
 	.eh_bus_reset_handler		= megaraid_reset_handler,
 	.eh_host_reset_handler		= megaraid_reset_handler,
+	.change_queue_depth		= megaraid_change_queue_depth,
 	.use_clustering			= ENABLE_CLUSTERING,
 	.sdev_attrs			= megaraid_sdev_attrs,
 	.shost_attrs			= megaraid_shost_attrs,

drivers/scsi/megaraid/megaraid_sas.c

@@ -53,31 +53,15 @@ MODULE_DESCRIPTION("LSI Logic MegaRAID SAS Driver");
  */
 static struct pci_device_id megasas_pci_table[] = {
 
-	{
+	{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1064R)},
-	 PCI_VENDOR_ID_LSI_LOGIC,
+	/* xscale IOP */
-	 PCI_DEVICE_ID_LSI_SAS1064R, /* xscale IOP */
+	{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_SAS1078R)},
-	 PCI_ANY_ID,
+	/* ppc IOP */
-	 PCI_ANY_ID,
+	{PCI_DEVICE(PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_VERDE_ZCR)},
-	 },
+	/* xscale IOP, vega */
-	{
+	{PCI_DEVICE(PCI_VENDOR_ID_DELL, PCI_DEVICE_ID_DELL_PERC5)},
-	 PCI_VENDOR_ID_LSI_LOGIC,
+	/* xscale IOP */
-	 PCI_DEVICE_ID_LSI_SAS1078R, /* ppc IOP */
+	{}
-	 PCI_ANY_ID,
-	 PCI_ANY_ID,
-	},
-	{
-	 PCI_VENDOR_ID_LSI_LOGIC,
-	 PCI_DEVICE_ID_LSI_VERDE_ZCR,	/* xscale IOP, vega */
-	 PCI_ANY_ID,
-	 PCI_ANY_ID,
-	 },
-	{
-	 PCI_VENDOR_ID_DELL,
-	 PCI_DEVICE_ID_DELL_PERC5, /* xscale IOP */
-	 PCI_ANY_ID,
-	 PCI_ANY_ID,
-	 },
-	{0}			/* Terminating entry */
 };
 
 MODULE_DEVICE_TABLE(pci, megasas_pci_table);
@@ -2854,7 +2838,7 @@ static int __init megasas_init(void)
 	/*
 	 * Register ourselves as PCI hotplug module
 	 */
-	rval = pci_module_init(&megasas_pci_driver);
+	rval = pci_register_driver(&megasas_pci_driver);
 
 	if (rval) {
 		printk(KERN_DEBUG "megasas: PCI hotplug regisration failed \n");

drivers/scsi/mvme147.c

@@ -29,7 +29,7 @@ static irqreturn_t mvme147_intr (int irq, void *dummy, struct pt_regs *fp)
     return IRQ_HANDLED;
 }
 
-static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
+static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
     unsigned char flags = 0x01;
     unsigned long addr = virt_to_bus(cmd->SCp.ptr);
@@ -57,7 +57,7 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
     return 0;
 }
 
-static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
+static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 		      int status)
 {
     m147_pcc->dma_cntrl = 0;
@@ -112,7 +112,7 @@ int mvme147_detect(struct scsi_host_template *tpnt)
     return 0;
 }
 
-static int mvme147_bus_reset(Scsi_Cmnd *cmd)
+static int mvme147_bus_reset(struct scsi_cmnd *cmd)
 {
 	/* FIXME perform bus-specific reset */
 

drivers/scsi/mvme147.h

@@ -12,10 +12,6 @@
 
 int mvme147_detect(struct scsi_host_template *);
 int mvme147_release(struct Scsi_Host *);
-const char *wd33c93_info(void);
-int wd33c93_queuecommand(Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
-int wd33c93_abort(Scsi_Cmnd *);
-int wd33c93_reset(Scsi_Cmnd *, unsigned int);
 
 #ifndef CMD_PER_LUN
 #define CMD_PER_LUN 2

drivers/scsi/scsi.c

@@ -96,24 +96,40 @@ unsigned int scsi_logging_level;
 EXPORT_SYMBOL(scsi_logging_level);
 #endif
 
-const char *const scsi_device_types[MAX_SCSI_DEVICE_CODE] = {
+static const char *const scsi_device_types[] = {
-	"Direct-Access    ",
+	"Direct access    ",
-	"Sequential-Access",
+	"Sequential access",
 	"Printer          ",
 	"Processor        ",
 	"WORM             ",
-	"CD-ROM           ",
+	"CD/DVD           ",
 	"Scanner          ",
-	"Optical Device   ",
+	"Optical memory   ",
-	"Medium Changer   ",
+	"Media changer    ",
 	"Communications   ",
-	"Unknown          ",
+	"ASC IT8          ",
-	"Unknown          ",
+	"ASC IT8          ",
 	"RAID             ",
 	"Enclosure        ",
-	"Direct-Access-RBC",
+	"Direct access RBC",
+	"Optical card     ",
+	"Bridge controller",
+	"Object storage   ",
+	"Automation/Drive ",
 };
-EXPORT_SYMBOL(scsi_device_types);
+
+const char * scsi_device_type(unsigned type)
+{
+	if (type == 0x1e)
+		return "Well-known LUN   ";
+	if (type == 0x1f)
+		return "No Device        ";
+	if (type > ARRAY_SIZE(scsi_device_types))
+		return "Unknown          ";
+	return scsi_device_types[type];
+}
+
+EXPORT_SYMBOL(scsi_device_type);
 
 struct scsi_host_cmd_pool {
 	kmem_cache_t	*slab;
@@ -835,14 +851,14 @@ EXPORT_SYMBOL(scsi_track_queue_full);
  */
 int scsi_device_get(struct scsi_device *sdev)
 {
-	if (sdev->sdev_state == SDEV_DEL || sdev->sdev_state == SDEV_CANCEL)
+	if (sdev->sdev_state == SDEV_DEL)
 		return -ENXIO;
 	if (!get_device(&sdev->sdev_gendev))
 		return -ENXIO;
-	if (!try_module_get(sdev->host->hostt->module)) {
+	/* We can fail this if we're doing SCSI operations
-		put_device(&sdev->sdev_gendev);
+	 * from module exit (like cache flush) */
-		return -ENXIO;
+	try_module_get(sdev->host->hostt->module);
-	}
+
 	return 0;
 }
 EXPORT_SYMBOL(scsi_device_get);
@@ -857,7 +873,14 @@ EXPORT_SYMBOL(scsi_device_get);
  */
 void scsi_device_put(struct scsi_device *sdev)
 {
-	module_put(sdev->host->hostt->module);
+	struct module *module = sdev->host->hostt->module;
+
+#ifdef CONFIG_MODULE_UNLOAD
+	/* The module refcount will be zero if scsi_device_get()
+	 * was called from a module removal routine */
+	if (module && module_refcount(module) != 0)
+		module_put(module);
+#endif
 	put_device(&sdev->sdev_gendev);
 }
 EXPORT_SYMBOL(scsi_device_put);
@@ -1099,6 +1122,8 @@ static int __init init_scsi(void)
 	for_each_possible_cpu(i)
 		INIT_LIST_HEAD(&per_cpu(scsi_done_q, i));
 
+	scsi_netlink_init();
+
 	printk(KERN_NOTICE "SCSI subsystem initialized\n");
 	return 0;
 
@@ -1119,6 +1144,7 @@ cleanup_queue:
 
 static void __exit exit_scsi(void)
 {
+	scsi_netlink_exit();
 	scsi_sysfs_unregister();
 	scsi_exit_sysctl();
 	scsi_exit_hosts();

drivers/scsi/scsi.h

@@ -20,8 +20,6 @@
 #ifndef _SCSI_H
 #define _SCSI_H
 
-#include <linux/config.h>	    /* for CONFIG_SCSI_LOGGING */
-
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_eh.h>

drivers/scsi/scsi_lib.c

@@ -551,7 +551,15 @@ static void scsi_run_queue(struct request_queue *q)
 		list_del_init(&sdev->starved_entry);
 		spin_unlock_irqrestore(shost->host_lock, flags);
 
-		blk_run_queue(sdev->request_queue);
+
+		if (test_bit(QUEUE_FLAG_REENTER, &q->queue_flags) &&
+		    !test_and_set_bit(QUEUE_FLAG_REENTER,
+				      &sdev->request_queue->queue_flags)) {
+			blk_run_queue(sdev->request_queue);
+			clear_bit(QUEUE_FLAG_REENTER,
+				  &sdev->request_queue->queue_flags);
+		} else
+			blk_run_queue(sdev->request_queue);
 
 		spin_lock_irqsave(shost->host_lock, flags);
 		if (unlikely(!list_empty(&sdev->starved_entry)))

drivers/scsi/scsi_netlink.c

@@ -0,0 +1,199 @@
+/*
+ *  scsi_netlink.c  - SCSI Transport Netlink Interface
+ *
+ *  Copyright (C) 2006   James Smart, Emulex Corporation
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+#include <linux/time.h>
+#include <linux/jiffies.h>
+#include <linux/security.h>
+#include <net/sock.h>
+#include <net/netlink.h>
+
+#include <scsi/scsi_netlink.h>
+#include "scsi_priv.h"
+
+struct sock *scsi_nl_sock = NULL;
+EXPORT_SYMBOL_GPL(scsi_nl_sock);
+
+
+/**
+ * scsi_nl_rcv_msg -
+ *    Receive message handler. Extracts message from a receive buffer.
+ *    Validates message header and calls appropriate transport message handler
+ *
+ * @skb:		socket receive buffer
+ *
+ **/
+static void
+scsi_nl_rcv_msg(struct sk_buff *skb)
+{
+	struct nlmsghdr *nlh;
+	struct scsi_nl_hdr *hdr;
+	uint32_t rlen;
+	int err;
+
+	while (skb->len >= NLMSG_SPACE(0)) {
+		err = 0;
+
+		nlh = (struct nlmsghdr *) skb->data;
+		if ((nlh->nlmsg_len < (sizeof(*nlh) + sizeof(*hdr))) ||
+		    (skb->len < nlh->nlmsg_len)) {
+			printk(KERN_WARNING "%s: discarding partial skb\n",
+				 __FUNCTION__);
+			return;
+		}
+
+		rlen = NLMSG_ALIGN(nlh->nlmsg_len);
+		if (rlen > skb->len)
+			rlen = skb->len;
+
+		if (nlh->nlmsg_type != SCSI_TRANSPORT_MSG) {
+			err = -EBADMSG;
+			goto next_msg;
+		}
+
+		hdr = NLMSG_DATA(nlh);
+		if ((hdr->version != SCSI_NL_VERSION) ||
+		    (hdr->magic != SCSI_NL_MAGIC)) {
+			err = -EPROTOTYPE;
+			goto next_msg;
+		}
+
+		if (security_netlink_recv(skb, CAP_SYS_ADMIN)) {
+			err = -EPERM;
+			goto next_msg;
+		}
+
+		if (nlh->nlmsg_len < (sizeof(*nlh) + hdr->msglen)) {
+			printk(KERN_WARNING "%s: discarding partial message\n",
+				 __FUNCTION__);
+			return;
+		}
+
+		/*
+		 * We currently don't support anyone sending us a message
+		 */
+
+next_msg:
+		if ((err) || (nlh->nlmsg_flags & NLM_F_ACK))
+			netlink_ack(skb, nlh, err);
+
+		skb_pull(skb, rlen);
+	}
+}
+
+
+/**
+ * scsi_nl_rcv_msg -
+ *    Receive handler for a socket. Extracts a received message buffer from
+ *    the socket, and starts message processing.
+ *
+ * @sk:		socket
+ * @len:	unused
+ *
+ **/
+static void
+scsi_nl_rcv(struct sock *sk, int len)
+{
+	struct sk_buff *skb;
+
+	while ((skb = skb_dequeue(&sk->sk_receive_queue))) {
+		scsi_nl_rcv_msg(skb);
+		kfree_skb(skb);
+	}
+}
+
+
+/**
+ * scsi_nl_rcv_event -
+ *    Event handler for a netlink socket.
+ *
+ * @this:		event notifier block
+ * @event:		event type
+ * @ptr:		event payload
+ *
+ **/
+static int
+scsi_nl_rcv_event(struct notifier_block *this, unsigned long event, void *ptr)
+{
+	struct netlink_notify *n = ptr;
+
+	if (n->protocol != NETLINK_SCSITRANSPORT)
+		return NOTIFY_DONE;
+
+	/*
+	 * Currently, we are not tracking PID's, etc. There is nothing
+	 * to handle.
+	 */
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block scsi_netlink_notifier = {
+	.notifier_call  = scsi_nl_rcv_event,
+};
+
+
+/**
+ * scsi_netlink_init -
+ *    Called by SCSI subsystem to intialize the SCSI transport netlink
+ *    interface
+ *
+ **/
+void
+scsi_netlink_init(void)
+{
+	int error;
+
+	error = netlink_register_notifier(&scsi_netlink_notifier);
+	if (error) {
+		printk(KERN_ERR "%s: register of event handler failed - %d\n",
+				__FUNCTION__, error);
+		return;
+	}
+
+	scsi_nl_sock = netlink_kernel_create(NETLINK_SCSITRANSPORT,
+				SCSI_NL_GRP_CNT, scsi_nl_rcv, THIS_MODULE);
+	if (!scsi_nl_sock) {
+		printk(KERN_ERR "%s: register of recieve handler failed\n",
+				__FUNCTION__);
+		netlink_unregister_notifier(&scsi_netlink_notifier);
+	}
+
+	return;
+}
+
+
+/**
+ * scsi_netlink_exit -
+ *    Called by SCSI subsystem to disable the SCSI transport netlink
+ *    interface
+ *
+ **/
+void
+scsi_netlink_exit(void)
+{
+	if (scsi_nl_sock) {
+		sock_release(scsi_nl_sock->sk_socket);
+		netlink_unregister_notifier(&scsi_netlink_notifier);
+	}
+
+	return;
+}
+
+

drivers/scsi/scsi_priv.h

@@ -8,6 +8,7 @@ struct scsi_cmnd;
 struct scsi_device;
 struct scsi_host_template;
 struct Scsi_Host;
+struct scsi_nl_hdr;
 
 
 /*
@@ -110,6 +111,16 @@ extern void __scsi_remove_device(struct scsi_device *);
 
 extern struct bus_type scsi_bus_type;
 
+/* scsi_netlink.c */
+#ifdef CONFIG_SCSI_NETLINK
+extern void scsi_netlink_init(void);
+extern void scsi_netlink_exit(void);
+extern struct sock *scsi_nl_sock;
+#else
+static inline void scsi_netlink_init(void) {}
+static inline void scsi_netlink_exit(void) {}
+#endif
+
 /* 
  * internal scsi timeout functions: for use by mid-layer and transport
  * classes.