CVE-2023-2007 (Other, published 2023-04-24T23:15Z)
Description: value: The specific flaw exists within the DPT I2O Controller driver. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to escalate privileges and execute arbitrary code in the context of the kernel.
Severity: nan (CVSS v3 base score: 7.8)
Weakness: CWE-667 \u2014 Improper Locking
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Repository: https://github.com/torvalds/linux
Files changed:
Documentation/userspace-api/ioctl/ioctl-number.rst
MAINTAINERS
drivers/scsi/Kconfig
drivers/scsi/Makefile
Commit message: scsi: dpt_i2o: Remove obsolete driver

The dpt_i2o driver was fixed to stop using virt_to_bus() in 2008, but it
still has a stale reference in an error handling code path that could never
work. I submitted a patch to fix this reference earlier, but Hannes
Reinecke suggested that removing the driver may be just as good here.

The i2o driver layer was removed in 2015 with commit 4a72a7af462d
("staging: remove i2o subsystem"), but the even older dpt_i2o scsi driver
stayed around.

The last non-cleanup patches I could find were from Miquel van Smoorenburg
and Mark Salyzyn back in 2008, they might know if there is any chance of
the hardware still being used anywhere.

Link: https://lore.kernel.org/linux-scsi/CAK8P3a1XfwkTOV7qOs1fTxf4vthNBRXKNu8A5V7TWnHT081NGA@mail.gmail.com/T/
Link: https://lore.kernel.org/r/20220624155226.2889613-3-arnd@kernel.org
Cc: Miquel van Smoorenburg <mikevs@xs4all.net>
Cc: Mark Salyzyn <salyzyn@android.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>


Vulnerable code:
'D'   40-5F  drivers/scsi/dpt/dtpi_ioctl.h
DPT_I2O SCSI RAID DRIVER
M:	Adaptec OEM Raid Solutions <aacraid@microsemi.com>
L:	linux-scsi@vger.kernel.org
S:	Maintained
W:	http://www.adaptec.com/
F:	drivers/scsi/dpt*
F:	drivers/scsi/dpt/

config SCSI_DPT_I2O
	tristate "Adaptec I2O RAID support "
	depends on SCSI && PCI && VIRT_TO_BUS
	help
	  This driver supports all of Adaptec's I2O based RAID controllers as 
	  well as the DPT SmartRaid V cards.  This is an Adaptec maintained
	  driver by Deanna Bonds.  See <file:Documentation/scsi/dpti.rst>.

	  To compile this driver as a module, choose M here: the
	  module will be called dpt_i2o.

obj-$(CONFIG_SCSI_DPT_I2O)	+= dpt_i2o.o
/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _SCSI_I2O_H
#define _SCSI_I2O_H

/* I2O kernel space accessible structures/APIs
 *
 * (c) Copyright 1999, 2000 Red Hat Software
 *
 *************************************************************************
 *
 * This header file defined the I2O APIs/structures for use by
 * the I2O kernel modules.
 */

#ifdef __KERNEL__       /* This file to be included by kernel only */

#include <linux/i2o-dev.h>

#include <linux/notifier.h>
#include <linux/atomic.h>


/*
 *	Tunable parameters first
 */

/* How many different OSM's are we allowing */
#define MAX_I2O_MODULES		64

#define I2O_EVT_CAPABILITY_OTHER		0x01
#define I2O_EVT_CAPABILITY_CHANGED		0x02

#define I2O_EVT_SENSOR_STATE_CHANGED		0x01

//#ifdef __KERNEL__   /* ioctl stuff only thing exported to users */

#define I2O_MAX_MANAGERS	4

/*
 *	I2O Interface Objects
 */

#include <linux/wait.h>
typedef wait_queue_head_t adpt_wait_queue_head_t;
#define ADPT_DECLARE_WAIT_QUEUE_HEAD(wait) DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait)
typedef wait_queue_entry_t adpt_wait_queue_entry_t;

/*
 * message structures
 */

struct i2o_message
{
	u8	version_offset;
	u8	flags;
	u16	size;
	u32	target_tid:12;
	u32	init_tid:12;
	u32	function:8;
	u32	initiator_context;
	/* List follows */
};

struct adpt_device;
struct _adpt_hba;
struct i2o_device
{
	struct i2o_device *next;	/* Chain */
	struct i2o_device *prev;

	char dev_name[8];		/* linux /dev name if available */
	i2o_lct_entry lct_data;/* Device LCT information */
	u32 flags;
	struct proc_dir_entry* proc_entry;	/* /proc dir */
	struct adpt_device *owner;
	struct _adpt_hba *controller;	/* Controlling IOP */
};

/*
 *	Each I2O controller has one of these objects
 */

struct i2o_controller
{
	char name[16];
	int unit;
	int type;
	int enabled;

	struct notifier_block *event_notifer;	/* Events */
	atomic_t users;
	struct i2o_device *devices;		/* I2O device chain */
	struct i2o_controller *next;		/* Controller chain */

};

/*
 * I2O System table entry
 */
struct i2o_sys_tbl_entry
{
	u16	org_id;
	u16	reserved1;
	u32	iop_id:12;
	u32	reserved2:20;
	u16	seg_num:12;
	u16	i2o_version:4;
	u8	iop_state;
	u8	msg_type;
	u16	frame_size;
	u16	reserved3;
	u32	last_changed;
	u32	iop_capabilities;
	u32	inbound_low;
	u32	inbound_high;
};

struct i2o_sys_tbl
{
	u8	num_entries;
	u8	version;
	u16	reserved1;
	u32	change_ind;
	u32	reserved2;
	u32	reserved3;
	struct i2o_sys_tbl_entry iops[];
};

/*
 *	I2O classes / subclasses
 */

/*  Class ID and Code Assignments
 *  (LCT.ClassID.Version field)
 */
#define    I2O_CLASS_VERSION_10                        0x00
#define    I2O_CLASS_VERSION_11                        0x01

/*  Class code names
 *  (from v1.5 Table 6-1 Class Code Assignments.)
 */

#define    I2O_CLASS_EXECUTIVE                         0x000
#define    I2O_CLASS_DDM                               0x001
#define    I2O_CLASS_RANDOM_BLOCK_STORAGE              0x010
#define    I2O_CLASS_SEQUENTIAL_STORAGE                0x011
#define    I2O_CLASS_LAN                               0x020
#define    I2O_CLASS_WAN                               0x030
#define    I2O_CLASS_FIBRE_CHANNEL_PORT                0x040
#define    I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL          0x041
#define    I2O_CLASS_SCSI_PERIPHERAL                   0x051
#define    I2O_CLASS_ATE_PORT                          0x060
#define    I2O_CLASS_ATE_PERIPHERAL                    0x061
#define    I2O_CLASS_FLOPPY_CONTROLLER                 0x070
#define    I2O_CLASS_FLOPPY_DEVICE                     0x071
#define    I2O_CLASS_BUS_ADAPTER_PORT                  0x080
#define    I2O_CLASS_PEER_TRANSPORT_AGENT              0x090
#define    I2O_CLASS_PEER_TRANSPORT                    0x091

/*  Rest of 0x092 - 0x09f reserved for peer-to-peer classes
 */

#define    I2O_CLASS_MATCH_ANYCLASS                    0xffffffff

/*  Subclasses
 */

#define    I2O_SUBCLASS_i960                           0x001
#define    I2O_SUBCLASS_HDM                            0x020
#define    I2O_SUBCLASS_ISM                            0x021

/* Operation functions */

#define I2O_PARAMS_FIELD_GET	0x0001
#define I2O_PARAMS_LIST_GET	0x0002
#define I2O_PARAMS_MORE_GET	0x0003
#define I2O_PARAMS_SIZE_GET	0x0004
#define I2O_PARAMS_TABLE_GET	0x0005
#define I2O_PARAMS_FIELD_SET	0x0006
#define I2O_PARAMS_LIST_SET	0x0007
#define I2O_PARAMS_ROW_ADD	0x0008
#define I2O_PARAMS_ROW_DELETE	0x0009
#define I2O_PARAMS_TABLE_CLEAR	0x000A

/*
 *	I2O serial number conventions / formats
 *	(circa v1.5)
 */

#define    I2O_SNFORMAT_UNKNOWN                        0
#define    I2O_SNFORMAT_BINARY                         1
#define    I2O_SNFORMAT_ASCII                          2
#define    I2O_SNFORMAT_UNICODE                        3
#define    I2O_SNFORMAT_LAN48_MAC                      4
#define    I2O_SNFORMAT_WAN                            5

/* Plus new in v2.0 (Yellowstone pdf doc)
 */

#define    I2O_SNFORMAT_LAN64_MAC                      6
#define    I2O_SNFORMAT_DDM                            7
#define    I2O_SNFORMAT_IEEE_REG64                     8
#define    I2O_SNFORMAT_IEEE_REG128                    9
#define    I2O_SNFORMAT_UNKNOWN2                       0xff

/* Transaction Reply Lists (TRL) Control Word structure */

#define TRL_SINGLE_FIXED_LENGTH		0x00
#define TRL_SINGLE_VARIABLE_LENGTH	0x40
#define TRL_MULTIPLE_FIXED_LENGTH	0x80

/*
 *	Messaging API values
 */

#define	I2O_CMD_ADAPTER_ASSIGN		0xB3
#define	I2O_CMD_ADAPTER_READ		0xB2
#define	I2O_CMD_ADAPTER_RELEASE		0xB5
#define	I2O_CMD_BIOS_INFO_SET		0xA5
#define	I2O_CMD_BOOT_DEVICE_SET		0xA7
#define	I2O_CMD_CONFIG_VALIDATE		0xBB
#define	I2O_CMD_CONN_SETUP		0xCA
#define	I2O_CMD_DDM_DESTROY		0xB1
#define	I2O_CMD_DDM_ENABLE		0xD5
#define	I2O_CMD_DDM_QUIESCE		0xC7
#define	I2O_CMD_DDM_RESET		0xD9
#define	I2O_CMD_DDM_SUSPEND		0xAF
#define	I2O_CMD_DEVICE_ASSIGN		0xB7
#define	I2O_CMD_DEVICE_RELEASE		0xB9
#define	I2O_CMD_HRT_GET			0xA8
#define	I2O_CMD_ADAPTER_CLEAR		0xBE
#define	I2O_CMD_ADAPTER_CONNECT		0xC9
#define	I2O_CMD_ADAPTER_RESET		0xBD
#define	I2O_CMD_LCT_NOTIFY		0xA2
#define	I2O_CMD_OUTBOUND_INIT		0xA1
#define	I2O_CMD_PATH_ENABLE		0xD3
#define	I2O_CMD_PATH_QUIESCE		0xC5
#define	I2O_CMD_PATH_RESET		0xD7
#define	I2O_CMD_STATIC_MF_CREATE	0xDD
#define	I2O_CMD_STATIC_MF_RELEASE	0xDF
#define	I2O_CMD_STATUS_GET		0xA0
#define	I2O_CMD_SW_DOWNLOAD		0xA9
#define	I2O_CMD_SW_UPLOAD		0xAB
#define	I2O_CMD_SW_REMOVE		0xAD
#define	I2O_CMD_SYS_ENABLE		0xD1
#define	I2O_CMD_SYS_MODIFY		0xC1
#define	I2O_CMD_SYS_QUIESCE		0xC3
#define	I2O_CMD_SYS_TAB_SET		0xA3

#define I2O_CMD_UTIL_NOP		0x00
#define I2O_CMD_UTIL_ABORT		0x01
#define I2O_CMD_UTIL_CLAIM		0x09
#define I2O_CMD_UTIL_RELEASE		0x0B
#define I2O_CMD_UTIL_PARAMS_GET		0x06
#define I2O_CMD_UTIL_PARAMS_SET		0x05
#define I2O_CMD_UTIL_EVT_REGISTER	0x13
#define I2O_CMD_UTIL_EVT_ACK		0x14
#define I2O_CMD_UTIL_CONFIG_DIALOG	0x10
#define I2O_CMD_UTIL_DEVICE_RESERVE	0x0D
#define I2O_CMD_UTIL_DEVICE_RELEASE	0x0F
#define I2O_CMD_UTIL_LOCK		0x17
#define I2O_CMD_UTIL_LOCK_RELEASE	0x19
#define I2O_CMD_UTIL_REPLY_FAULT_NOTIFY	0x15

#define I2O_CMD_SCSI_EXEC		0x81
#define I2O_CMD_SCSI_ABORT		0x83
#define I2O_CMD_SCSI_BUSRESET		0x27

#define I2O_CMD_BLOCK_READ		0x30
#define I2O_CMD_BLOCK_WRITE		0x31
#define I2O_CMD_BLOCK_CFLUSH		0x37
#define I2O_CMD_BLOCK_MLOCK		0x49
#define I2O_CMD_BLOCK_MUNLOCK		0x4B
#define I2O_CMD_BLOCK_MMOUNT		0x41
#define I2O_CMD_BLOCK_MEJECT		0x43

#define I2O_PRIVATE_MSG			0xFF

/*
 *	Init Outbound Q status
 */

#define I2O_CMD_OUTBOUND_INIT_IN_PROGRESS	0x01
#define I2O_CMD_OUTBOUND_INIT_REJECTED		0x02
#define I2O_CMD_OUTBOUND_INIT_FAILED		0x03
#define I2O_CMD_OUTBOUND_INIT_COMPLETE		0x04

/*
 *	I2O Get Status State values
 */

#define	ADAPTER_STATE_INITIALIZING		0x01
#define	ADAPTER_STATE_RESET			0x02
#define	ADAPTER_STATE_HOLD			0x04
#define ADAPTER_STATE_READY			0x05
#define	ADAPTER_STATE_OPERATIONAL		0x08
#define	ADAPTER_STATE_FAILED			0x10
#define	ADAPTER_STATE_FAULTED			0x11

/* I2O API function return values */

#define I2O_RTN_NO_ERROR			0
#define I2O_RTN_NOT_INIT			1
#define I2O_RTN_FREE_Q_EMPTY			2
#define I2O_RTN_TCB_ERROR			3
#define I2O_RTN_TRANSACTION_ERROR		4
#define I2O_RTN_ADAPTER_ALREADY_INIT		5
#define I2O_RTN_MALLOC_ERROR			6
#define I2O_RTN_ADPTR_NOT_REGISTERED		7
#define I2O_RTN_MSG_REPLY_TIMEOUT		8
#define I2O_RTN_NO_STATUS			9
#define I2O_RTN_NO_FIRM_VER			10
#define	I2O_RTN_NO_LINK_SPEED			11

/* Reply message status defines for all messages */

#define I2O_REPLY_STATUS_SUCCESS			0x00
#define I2O_REPLY_STATUS_ABORT_DIRTY			0x01
#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER		0x02
#define	I2O_REPLY_STATUS_ABORT_PARTIAL_TRANSFER		0x03
#define	I2O_REPLY_STATUS_ERROR_DIRTY			0x04
#define	I2O_REPLY_STATUS_ERROR_NO_DATA_TRANSFER		0x05
#define	I2O_REPLY_STATUS_ERROR_PARTIAL_TRANSFER		0x06
#define	I2O_REPLY_STATUS_PROCESS_ABORT_DIRTY		0x08
#define	I2O_REPLY_STATUS_PROCESS_ABORT_NO_DATA_TRANSFER	0x09
#define	I2O_REPLY_STATUS_PROCESS_ABORT_PARTIAL_TRANSFER	0x0A
#define	I2O_REPLY_STATUS_TRANSACTION_ERROR		0x0B
#define	I2O_REPLY_STATUS_PROGRESS_REPORT		0x80

/* Status codes and Error Information for Parameter functions */

#define I2O_PARAMS_STATUS_SUCCESS		0x00
#define I2O_PARAMS_STATUS_BAD_KEY_ABORT		0x01
#define I2O_PARAMS_STATUS_BAD_KEY_CONTINUE	0x02
#define I2O_PARAMS_STATUS_BUFFER_FULL		0x03
#define I2O_PARAMS_STATUS_BUFFER_TOO_SMALL	0x04
#define I2O_PARAMS_STATUS_FIELD_UNREADABLE	0x05
#define I2O_PARAMS_STATUS_FIELD_UNWRITEABLE	0x06
#define I2O_PARAMS_STATUS_INSUFFICIENT_FIELDS	0x07
#define I2O_PARAMS_STATUS_INVALID_GROUP_ID	0x08
#define I2O_PARAMS_STATUS_INVALID_OPERATION	0x09
#define I2O_PARAMS_STATUS_NO_KEY_FIELD		0x0A
#define I2O_PARAMS_STATUS_NO_SUCH_FIELD		0x0B
#define I2O_PARAMS_STATUS_NON_DYNAMIC_GROUP	0x0C
#define I2O_PARAMS_STATUS_OPERATION_ERROR	0x0D
#define I2O_PARAMS_STATUS_SCALAR_ERROR		0x0E
#define I2O_PARAMS_STATUS_TABLE_ERROR		0x0F
#define I2O_PARAMS_STATUS_WRONG_GROUP_TYPE	0x10

/* DetailedStatusCode defines for Executive, DDM, Util and Transaction error
 * messages: Table 3-2 Detailed Status Codes.*/

#define I2O_DSC_SUCCESS                        0x0000
#define I2O_DSC_BAD_KEY                        0x0002
#define I2O_DSC_TCL_ERROR                      0x0003
#define I2O_DSC_REPLY_BUFFER_FULL              0x0004
#define I2O_DSC_NO_SUCH_PAGE                   0x0005
#define I2O_DSC_INSUFFICIENT_RESOURCE_SOFT     0x0006
#define I2O_DSC_INSUFFICIENT_RESOURCE_HARD     0x0007
#define I2O_DSC_CHAIN_BUFFER_TOO_LARGE         0x0009
#define I2O_DSC_UNSUPPORTED_FUNCTION           0x000A
#define I2O_DSC_DEVICE_LOCKED                  0x000B
#define I2O_DSC_DEVICE_RESET                   0x000C
#define I2O_DSC_INAPPROPRIATE_FUNCTION         0x000D
#define I2O_DSC_INVALID_INITIATOR_ADDRESS      0x000E
#define I2O_DSC_INVALID_MESSAGE_FLAGS          0x000F
#define I2O_DSC_INVALID_OFFSET                 0x0010
#define I2O_DSC_INVALID_PARAMETER              0x0011
#define I2O_DSC_INVALID_REQUEST                0x0012
#define I2O_DSC_INVALID_TARGET_ADDRESS         0x0013
#define I2O_DSC_MESSAGE_TOO_LARGE              0x0014
#define I2O_DSC_MESSAGE_TOO_SMALL              0x0015
#define I2O_DSC_MISSING_PARAMETER              0x0016
#define I2O_DSC_TIMEOUT                        0x0017
#define I2O_DSC_UNKNOWN_ERROR                  0x0018
#define I2O_DSC_UNKNOWN_FUNCTION               0x0019
#define I2O_DSC_UNSUPPORTED_VERSION            0x001A
#define I2O_DSC_DEVICE_BUSY                    0x001B
#define I2O_DSC_DEVICE_NOT_AVAILABLE           0x001C

/* Device Claim Types */
#define	I2O_CLAIM_PRIMARY					0x01000000
#define	I2O_CLAIM_MANAGEMENT					0x02000000
#define	I2O_CLAIM_AUTHORIZED					0x03000000
#define	I2O_CLAIM_SECONDARY					0x04000000

/* Message header defines for VersionOffset */
#define I2OVER15	0x0001
#define I2OVER20	0x0002
/* Default is 1.5, FIXME: Need support for both 1.5 and 2.0 */
#define I2OVERSION	I2OVER15
#define SGL_OFFSET_0    I2OVERSION
#define SGL_OFFSET_4    (0x0040 | I2OVERSION)
#define SGL_OFFSET_5    (0x0050 | I2OVERSION)
#define SGL_OFFSET_6    (0x0060 | I2OVERSION)
#define SGL_OFFSET_7    (0x0070 | I2OVERSION)
#define SGL_OFFSET_8    (0x0080 | I2OVERSION)
#define SGL_OFFSET_9    (0x0090 | I2OVERSION)
#define SGL_OFFSET_10   (0x00A0 | I2OVERSION)
#define SGL_OFFSET_12   (0x00C0 | I2OVERSION)

#define TRL_OFFSET_5    (0x0050 | I2OVERSION)
#define TRL_OFFSET_6    (0x0060 | I2OVERSION)

 /* msg header defines for MsgFlags */
#define MSG_STATIC	0x0100
#define MSG_64BIT_CNTXT	0x0200
#define MSG_MULTI_TRANS	0x1000
#define MSG_FAIL	0x2000
#define MSG_LAST	0x4000
#define MSG_REPLY	0x8000

 /* minimum size msg */
#define THREE_WORD_MSG_SIZE	0x00030000
#define FOUR_WORD_MSG_SIZE	0x00040000
#define FIVE_WORD_MSG_SIZE	0x00050000
#define SIX_WORD_MSG_SIZE	0x00060000
#define SEVEN_WORD_MSG_SIZE	0x00070000
#define EIGHT_WORD_MSG_SIZE	0x00080000
#define NINE_WORD_MSG_SIZE	0x00090000
#define TEN_WORD_MSG_SIZE	0x000A0000
#define I2O_MESSAGE_SIZE(x)	((x)<<16)


/* Special TID Assignments */

#define ADAPTER_TID		0
#define HOST_TID		1

#define MSG_FRAME_SIZE		128
#define NMBR_MSG_FRAMES		128

#define MSG_POOL_SIZE		16384

#define I2O_POST_WAIT_OK	0
#define I2O_POST_WAIT_TIMEOUT	-ETIMEDOUT


#endif /* __KERNEL__ */

#endif /* _SCSI_I2O_H */
/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
                          dpti_ioctl.h  -  description
                             -------------------
    begin                : Thu Sep 7 2000
    copyright            : (C) 2001 by Adaptec

    See Documentation/scsi/dpti.rst for history, notes, license info
    and credits
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *                                                                         *
 ***************************************************************************/

/***************************************************************************
 * This file is generated from  osd_unix.h                                 *
 * *************************************************************************/

#ifndef _dpti_ioctl_h
#define _dpti_ioctl_h

// IOCTL interface commands

#ifndef _IOWR
# define _IOWR(x,y,z)	(((x)<<8)|y)
#endif
#ifndef _IOW
# define _IOW(x,y,z)	(((x)<<8)|y)
#endif
#ifndef _IOR
# define _IOR(x,y,z)	(((x)<<8)|y)
#endif
#ifndef _IO
# define _IO(x,y)	(((x)<<8)|y)
#endif
/* EATA PassThrough Command	*/
#define EATAUSRCMD      _IOWR('D',65,EATA_CP)
/* Set Debug Level If Enabled	*/
#define DPT_DEBUG       _IOW('D',66,int)
/* Get Signature Structure	*/
#define DPT_SIGNATURE   _IOR('D',67,dpt_sig_S)
#if defined __bsdi__
#define DPT_SIGNATURE_PACKED   _IOR('D',67,dpt_sig_S_Packed)
#endif
/* Get Number Of DPT Adapters	*/
#define DPT_NUMCTRLS    _IOR('D',68,int)
/* Get Adapter Info Structure	*/
#define DPT_CTRLINFO    _IOR('D',69,CtrlInfo)
/* Get Statistics If Enabled	*/
#define DPT_STATINFO    _IO('D',70)
/* Clear Stats If Enabled	*/
#define DPT_CLRSTAT     _IO('D',71)
/* Get System Info Structure	*/
#define DPT_SYSINFO     _IOR('D',72,sysInfo_S)
/* Set Timeout Value		*/
#define DPT_TIMEOUT     _IO('D',73)
/* Get config Data  		*/
#define DPT_CONFIG      _IO('D',74)
/* Get Blink LED Code	        */
#define DPT_BLINKLED    _IOR('D',75,int)
/* Get Statistical information (if available) */
#define DPT_STATS_INFO        _IOR('D',80,STATS_DATA)
/* Clear the statistical information          */
#define DPT_STATS_CLEAR       _IO('D',81)
/* Get Performance metrics */
#define DPT_PERF_INFO        _IOR('D',82,dpt_perf_t)
/* Send an I2O command */
#define I2OUSRCMD	_IO('D',76)
/* Inform driver to re-acquire LCT information */
#define I2ORESCANCMD	_IO('D',77)
/* Inform driver to reset adapter */
#define I2ORESETCMD	_IO('D',78)
/* See if the target is mounted */
#define DPT_TARGET_BUSY	_IOR('D',79, TARGET_BUSY_T)


  /* Structure Returned From Get Controller Info                             */

typedef struct {
	uCHAR    state;            /* Operational state               */
	uCHAR    id;               /* Host adapter SCSI id            */
	int      vect;             /* Interrupt vector number         */
	int      base;             /* Base I/O address                */
	int      njobs;            /* # of jobs sent to HA            */
	int      qdepth;           /* Controller queue depth.         */
	int      wakebase;         /* mpx wakeup base index.          */
	uINT     SGsize;           /* Scatter/Gather list size.       */
	unsigned heads;            /* heads for drives on cntlr.      */
	unsigned sectors;          /* sectors for drives on cntlr.    */
	uCHAR    do_drive32;       /* Flag for Above 16 MB Ability    */
	uCHAR    BusQuiet;         /* SCSI Bus Quiet Flag             */
	char     idPAL[4];         /* 4 Bytes Of The ID Pal           */
	uCHAR    primary;          /* 1 For Primary, 0 For Secondary  */
	uCHAR    eataVersion;      /* EATA Version                    */
	uINT     cpLength;         /* EATA Command Packet Length      */
	uINT     spLength;         /* EATA Status Packet Length       */
	uCHAR    drqNum;           /* DRQ Index (0,5,6,7)             */
	uCHAR    flag1;            /* EATA Flags 1 (Byte 9)           */
	uCHAR    flag2;            /* EATA Flags 2 (Byte 30)          */
} CtrlInfo;

typedef struct {
	uSHORT length;		// Remaining length of this
	uSHORT drvrHBAnum;	// Relative HBA # used by the driver
	uINT baseAddr;		// Base I/O address
	uSHORT blinkState;	// Blink LED state (0=Not in blink LED)
	uCHAR pciBusNum;	// PCI Bus # (Optional)
	uCHAR pciDeviceNum;	// PCI Device # (Optional)
	uSHORT hbaFlags;	// Miscellaneous HBA flags
	uSHORT Interrupt;	// Interrupt set for this device.
#   if (defined(_DPT_ARC))
	uINT baseLength;
	ADAPTER_OBJECT *AdapterObject;
	LARGE_INTEGER DmaLogicalAddress;
	PVOID DmaVirtualAddress;
	LARGE_INTEGER ReplyLogicalAddress;
	PVOID ReplyVirtualAddress;
#   else
	uINT reserved1;		// Reserved for future expansion
	uINT reserved2;		// Reserved for future expansion
	uINT reserved3;		// Reserved for future expansion
#   endif
} drvrHBAinfo_S;

typedef struct TARGET_BUSY
{
  uLONG channel;
  uLONG id;
  uLONG lun;
  uLONG isBusy;
} TARGET_BUSY_T;

#endif

/*	BSDI dptsig.h,v 1.7 1998/06/03 19:15:00 karels Exp	*/

/*
 * Copyright (c) 1996-1999 Distributed Processing Technology Corporation
 * All rights reserved.
 *
 * Redistribution and use in source form, with or without modification, are
 * permitted provided that redistributions of source code must retain the
 * above copyright notice, this list of conditions and the following disclaimer.
 *
 * This software is provided `as is' by Distributed Processing Technology 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 Distributed Processing Technology 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
 * interruptions) 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 driver software, even if advised
 * of the possibility of such damage.
 *
 */

#ifndef __DPTSIG_H_
#define __DPTSIG_H_
#ifdef _SINIX_ADDON
#include "dpt.h"
#endif
/* DPT SIGNATURE SPEC AND HEADER FILE                           */
/* Signature Version 1 (sorry no 'A')                           */

/* to make sure we are talking the same size under all OS's     */
typedef unsigned char sigBYTE;
typedef unsigned short sigWORD;
typedef unsigned int sigINT;

/*
 * use sigWORDLittleEndian for:
 *  dsCapabilities
 *  dsDeviceSupp
 *  dsAdapterSupp
 *  dsApplication
 * use sigLONGLittleEndian for:
 *      dsOS
 * so that the sig can be standardised to Little Endian
 */
#if (defined(_DPT_BIG_ENDIAN))
# define sigWORDLittleEndian(x) ((((x)&0xFF)<<8)|(((x)>>8)&0xFF))
# define sigLONGLittleEndian(x) \
        ((((x)&0xFF)<<24) |             \
         (((x)&0xFF00)<<8) |    \
         (((x)&0xFF0000L)>>8) | \
         (((x)&0xFF000000L)>>24))
#else
# define sigWORDLittleEndian(x) (x)
# define sigLONGLittleEndian(x) (x)
#endif

/* must make sure the structure is not word or double-word aligned      */
/* ---------------------------------------------------------------      */
/* Borland will ignore the following pragma:                            */
/* Word alignment is OFF by default.  If in the, IDE make               */
/* sure that Options | Compiler | Code Generation | Word Alignment      */
/* is not checked.  If using BCC, do not use the -a option.             */

#ifndef NO_PACK
#if defined (_DPT_AIX)
#pragma options align=packed
#else
#pragma pack(1)
#endif  /* aix */
#endif
/* For the Macintosh */
#ifdef STRUCTALIGNMENTSUPPORTED
#pragma options align=mac68k
#endif


/* Current Signature Version - sigBYTE dsSigVersion; */
/* ------------------------------------------------------------------ */
#define SIG_VERSION 1

/* Processor Family - sigBYTE dsProcessorFamily;  DISTINCT VALUES */
/* ------------------------------------------------------------------ */
/* What type of processor the file is meant to run on. */
/* This will let us know whether to read sigWORDs as high/low or low/high. */
#define PROC_INTEL      0x00    /* Intel 80x86/ia64 */
#define PROC_MOTOROLA   0x01    /* Motorola 68K */
#define PROC_MIPS4000   0x02    /* MIPS RISC 4000 */
#define PROC_ALPHA      0x03    /* DEC Alpha */
#define PROC_POWERPC    0x04    /* IBM Power PC */
#define PROC_i960       0x05    /* Intel i960 */
#define PROC_ULTRASPARC 0x06    /* SPARC processor */

/* Specific Minimim Processor - sigBYTE dsProcessor;    FLAG BITS */
/* ------------------------------------------------------------------ */
/* Different bit definitions dependent on processor_family */

/* PROC_INTEL: */
#define PROC_8086       0x01    /* Intel 8086 */
#define PROC_286        0x02    /* Intel 80286 */
#define PROC_386        0x04    /* Intel 80386 */
#define PROC_486        0x08    /* Intel 80486 */
#define PROC_PENTIUM    0x10    /* Intel 586 aka P5 aka Pentium */
#define PROC_SEXIUM	0x20	/* Intel 686 aka P6 aka Pentium Pro or MMX */
#define PROC_IA64	0x40	/* Intel IA64 processor */

/* PROC_i960: */
#define PROC_960RX      0x01    /* Intel 80960RC/RD */
#define PROC_960HX      0x02    /* Intel 80960HA/HD/HT */

/* PROC_MOTOROLA: */
#define PROC_68000      0x01    /* Motorola 68000 */
#define PROC_68010	0x02	/* Motorola 68010 */
#define PROC_68020      0x04    /* Motorola 68020 */
#define PROC_68030      0x08    /* Motorola 68030 */
#define PROC_68040      0x10    /* Motorola 68040 */

/* PROC_POWERPC */
#define PROC_PPC601		0x01	/* PowerPC 601 */
#define PROC_PPC603		0x02	/* PowerPC 603 */
#define PROC_PPC604		0x04	/* PowerPC 604 */

/* PROC_MIPS4000: */
#define PROC_R4000      0x01    /* MIPS R4000 */

/* Filetype - sigBYTE dsFiletype;       DISTINCT VALUES */
/* ------------------------------------------------------------------ */
#define FT_EXECUTABLE   0       /* Executable Program */
#define FT_SCRIPT       1       /* Script/Batch File??? */
#define FT_HBADRVR      2       /* HBA Driver */
#define FT_OTHERDRVR    3       /* Other Driver */
#define FT_IFS          4       /* Installable Filesystem Driver */
#define FT_ENGINE       5       /* DPT Engine */
#define FT_COMPDRVR     6       /* Compressed Driver Disk */
#define FT_LANGUAGE     7       /* Foreign Language file */
#define FT_FIRMWARE     8       /* Downloadable or actual Firmware */
#define FT_COMMMODL     9       /* Communications Module */
#define FT_INT13        10      /* INT 13 style HBA Driver */
#define FT_HELPFILE     11      /* Help file */
#define FT_LOGGER       12      /* Event Logger */
#define FT_INSTALL      13      /* An Install Program */
#define FT_LIBRARY      14      /* Storage Manager Real-Mode Calls */
#define FT_RESOURCE	15	/* Storage Manager Resource File */
#define FT_MODEM_DB	16	/* Storage Manager Modem Database */

/* Filetype flags - sigBYTE dsFiletypeFlags;    FLAG BITS */
/* ------------------------------------------------------------------ */
#define FTF_DLL         0x01    /* Dynamic Link Library */
#define FTF_NLM         0x02    /* Netware Loadable Module */
#define FTF_OVERLAYS    0x04    /* Uses overlays */
#define FTF_DEBUG       0x08    /* Debug version */
#define FTF_TSR         0x10    /* TSR */
#define FTF_SYS         0x20    /* DOS Loadable driver */
#define FTF_PROTECTED   0x40    /* Runs in protected mode */
#define FTF_APP_SPEC    0x80    /* Application Specific */
#define FTF_ROM		(FTF_SYS|FTF_TSR)	/* Special Case */

/* OEM - sigBYTE dsOEM;         DISTINCT VALUES */
/* ------------------------------------------------------------------ */
#define OEM_DPT         0       /* DPT */
#define OEM_ATT         1       /* ATT */
#define OEM_NEC         2       /* NEC */
#define OEM_ALPHA       3       /* Alphatronix */
#define OEM_AST         4       /* AST */
#define OEM_OLIVETTI    5       /* Olivetti */
#define OEM_SNI         6       /* Siemens/Nixdorf */
#define OEM_SUN         7       /* SUN Microsystems */

/* Operating System  - sigLONG dsOS;    FLAG BITS */
/* ------------------------------------------------------------------ */
#define OS_DOS          0x00000001 /* PC/MS-DOS				*/
#define OS_WINDOWS      0x00000002 /* Microsoft Windows 3.x		*/
#define OS_WINDOWS_NT   0x00000004 /* Microsoft Windows NT		*/
#define OS_OS2M         0x00000008 /* OS/2 1.2.x,MS 1.3.0,IBM 1.3.x - Monolithic */
#define OS_OS2L         0x00000010 /* Microsoft OS/2 1.301 - LADDR	*/
#define OS_OS22x        0x00000020 /* IBM OS/2 2.x			*/
#define OS_NW286        0x00000040 /* Novell NetWare 286		*/
#define OS_NW386        0x00000080 /* Novell NetWare 386		*/
#define OS_GEN_UNIX     0x00000100 /* Generic Unix			*/
#define OS_SCO_UNIX     0x00000200 /* SCO Unix				*/
#define OS_ATT_UNIX     0x00000400 /* ATT Unix				*/
#define OS_UNIXWARE     0x00000800 /* USL Unix				*/
#define OS_INT_UNIX     0x00001000 /* Interactive Unix			*/
#define OS_SOLARIS      0x00002000 /* SunSoft Solaris			*/
#define OS_QNX          0x00004000 /* QNX for Tom Moch			*/
#define OS_NEXTSTEP     0x00008000 /* NeXTSTEP/OPENSTEP/MACH		*/
#define OS_BANYAN       0x00010000 /* Banyan Vines			*/
#define OS_OLIVETTI_UNIX 0x00020000/* Olivetti Unix			*/
#define OS_MAC_OS	0x00040000 /* Mac OS				*/
#define OS_WINDOWS_95	0x00080000 /* Microsoft Windows '95		*/
#define OS_NW4x		0x00100000 /* Novell Netware 4.x		*/
#define OS_BSDI_UNIX	0x00200000 /* BSDi Unix BSD/OS 2.0 and up	*/
#define OS_AIX_UNIX     0x00400000 /* AIX Unix				*/
#define OS_FREE_BSD	0x00800000 /* FreeBSD Unix			*/
#define OS_LINUX	0x01000000 /* Linux				*/
#define OS_DGUX_UNIX	0x02000000 /* Data General Unix			*/
#define OS_SINIX_N      0x04000000 /* SNI SINIX-N			*/
#define OS_PLAN9	0x08000000 /* ATT Plan 9			*/
#define OS_TSX		0x10000000 /* SNH TSX-32			*/

#define OS_OTHER        0x80000000 /* Other				*/

/* Capabilities - sigWORD dsCapabilities;        FLAG BITS */
/* ------------------------------------------------------------------ */
#define CAP_RAID0       0x0001  /* RAID-0 */
#define CAP_RAID1       0x0002  /* RAID-1 */
#define CAP_RAID3       0x0004  /* RAID-3 */
#define CAP_RAID5       0x0008  /* RAID-5 */
#define CAP_SPAN        0x0010  /* Spanning */
#define CAP_PASS        0x0020  /* Provides passthrough */
#define CAP_OVERLAP     0x0040  /* Passthrough supports overlapped commands */
#define CAP_ASPI        0x0080  /* Supports ASPI Command Requests */
#define CAP_ABOVE16MB   0x0100  /* ISA Driver supports greater than 16MB */
#define CAP_EXTEND      0x8000  /* Extended info appears after description */
#ifdef SNI_MIPS
#define CAP_CACHEMODE   0x1000  /* dpt_force_cache is set in driver */
#endif

/* Devices Supported - sigWORD dsDeviceSupp;    FLAG BITS */
/* ------------------------------------------------------------------ */
#define DEV_DASD        0x0001  /* DASD (hard drives) */
#define DEV_TAPE        0x0002  /* Tape drives */
#define DEV_PRINTER     0x0004  /* Printers */
#define DEV_PROC        0x0008  /* Processors */
#define DEV_WORM        0x0010  /* WORM drives */
#define DEV_CDROM       0x0020  /* CD-ROM drives */
#define DEV_SCANNER     0x0040  /* Scanners */
#define DEV_OPTICAL     0x0080  /* Optical Drives */
#define DEV_JUKEBOX     0x0100  /* Jukebox */
#define DEV_COMM        0x0200  /* Communications Devices */
#define DEV_OTHER       0x0400  /* Other Devices */
#define DEV_ALL         0xFFFF  /* All SCSI Devices */

/* Adapters Families Supported - sigWORD dsAdapterSupp; FLAG BITS */
/* ------------------------------------------------------------------ */
#define ADF_2001        0x0001  /* PM2001           */
#define ADF_2012A       0x0002  /* PM2012A          */
#define ADF_PLUS_ISA    0x0004  /* PM2011,PM2021    */
#define ADF_PLUS_EISA   0x0008  /* PM2012B,PM2022   */
#define ADF_SC3_ISA	0x0010  /* PM2021           */
#define ADF_SC3_EISA	0x0020  /* PM2022,PM2122, etc */
#define ADF_SC3_PCI	0x0040  /* SmartCache III PCI */
#define ADF_SC4_ISA	0x0080  /* SmartCache IV ISA */
#define ADF_SC4_EISA	0x0100  /* SmartCache IV EISA */
#define ADF_SC4_PCI	0x0200	/* SmartCache IV PCI */
#define ADF_SC5_PCI	0x0400	/* Fifth Generation I2O products */
/*
 *	Combinations of products
 */
#define ADF_ALL_2000	(ADF_2001|ADF_2012A)
#define ADF_ALL_PLUS	(ADF_PLUS_ISA|ADF_PLUS_EISA)
#define ADF_ALL_SC3	(ADF_SC3_ISA|ADF_SC3_EISA|ADF_SC3_PCI)
#define ADF_ALL_SC4	(ADF_SC4_ISA|ADF_SC4_EISA|ADF_SC4_PCI)
#define ADF_ALL_SC5	(ADF_SC5_PCI)
/* All EATA Cacheing Products */
#define ADF_ALL_CACHE	(ADF_ALL_PLUS|ADF_ALL_SC3|ADF_ALL_SC4)
/* All EATA Bus Mastering Products */
#define ADF_ALL_MASTER	(ADF_2012A|ADF_ALL_CACHE)
/* All EATA Adapter Products */
#define ADF_ALL_EATA	(ADF_2001|ADF_ALL_MASTER)
#define ADF_ALL		ADF_ALL_EATA

/* Application - sigWORD dsApplication;         FLAG BITS */
/* ------------------------------------------------------------------ */
#define APP_DPTMGR      0x0001  /* DPT Storage Manager */
#define APP_ENGINE      0x0002  /* DPT Engine */
#define APP_SYTOS       0x0004  /* Sytron Sytos Plus */
#define APP_CHEYENNE    0x0008  /* Cheyenne ARCServe + ARCSolo */
#define APP_MSCDEX      0x0010  /* Microsoft CD-ROM extensions */
#define APP_NOVABACK    0x0020  /* NovaStor Novaback */
#define APP_AIM         0x0040  /* Archive Information Manager */

/* Requirements - sigBYTE dsRequirements;         FLAG BITS             */
/* ------------------------------------------------------------------   */
#define REQ_SMARTROM    0x01    /* Requires SmartROM to be present      */
#define REQ_DPTDDL      0x02    /* Requires DPTDDL.SYS to be loaded     */
#define REQ_HBA_DRIVER  0x04    /* Requires an HBA driver to be loaded  */
#define REQ_ASPI_TRAN   0x08    /* Requires an ASPI Transport Modules   */
#define REQ_ENGINE      0x10    /* Requires a DPT Engine to be loaded   */
#define REQ_COMM_ENG    0x20    /* Requires a DPT Communications Engine */

/*
 * You may adjust dsDescription_size with an override to a value less than
 * 50 so that the structure allocates less real space.
 */
#if (!defined(dsDescription_size))
# define dsDescription_size 50
#endif

typedef struct dpt_sig {
    char    dsSignature[6];      /* ALWAYS "dPtSiG" */
    sigBYTE dsSigVersion;        /* signature version (currently 1) */
    sigBYTE dsProcessorFamily;   /* what type of processor */
    sigBYTE dsProcessor;         /* precise processor */
    sigBYTE dsFiletype;          /* type of file */
    sigBYTE dsFiletypeFlags;     /* flags to specify load type, etc. */
    sigBYTE dsOEM;               /* OEM file was created for */
    sigINT  dsOS;                /* which Operating systems */
    sigWORD dsCapabilities;      /* RAID levels, etc. */
    sigWORD dsDeviceSupp;        /* Types of SCSI devices supported */
    sigWORD dsAdapterSupp;       /* DPT adapter families supported */
    sigWORD dsApplication;       /* applications file is for */
    sigBYTE dsRequirements;      /* Other driver dependencies */
    sigBYTE dsVersion;           /* 1 */
    sigBYTE dsRevision;          /* 'J' */
    sigBYTE dsSubRevision;       /* '9'   ' ' if N/A */
    sigBYTE dsMonth;             /* creation month */
    sigBYTE dsDay;               /* creation day */
    sigBYTE dsYear;              /* creation year since 1980 (1993=13) */
    /* description (NULL terminated) */
    char  dsDescription[dsDescription_size];
} dpt_sig_S;
/* 32 bytes minimum - with no description.  Put NULL at description[0] */
/* 81 bytes maximum - with 49 character description plus NULL. */

/* This line added at Roycroft's request */
/* Microsoft's NT compiler gets confused if you do a pack and don't */
/* restore it. */

#ifndef NO_UNPACK
#if defined (_DPT_AIX)
#pragma options align=reset
#elif defined (UNPACK_FOUR)
#pragma pack(4)
#else
#pragma pack()
#endif  /* aix */
#endif
/* For the Macintosh */
#ifdef STRUCTALIGNMENTSUPPORTED
#pragma options align=reset
#endif

#endif
/*	BSDI osd_defs.h,v 1.4 1998/06/03 19:14:58 karels Exp	*/
/*
 * Copyright (c) 1996-1999 Distributed Processing Technology Corporation
 * All rights reserved.
 *
 * Redistribution and use in source form, with or without modification, are
 * permitted provided that redistributions of source code must retain the
 * above copyright notice, this list of conditions and the following disclaimer.
 *
 * This software is provided `as is' by Distributed Processing Technology 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 Distributed Processing Technology 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
 * interruptions) 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 driver software, even if advised
 * of the possibility of such damage.
 *
 */

#ifndef		_OSD_DEFS_H
#define		_OSD_DEFS_H

/*File - OSD_DEFS.H
 ****************************************************************************
 *
 *Description:
 *
 *	This file contains the OS dependent defines.  This file is included
 *in osd_util.h and provides the OS specific defines for that file.
 *
 *Copyright Distributed Processing Technology, Corp.
 *	  140 Candace Dr.
 *	  Maitland, Fl.	32751   USA
 *	  Phone: (407) 830-5522  Fax: (407) 260-5366
 *	  All Rights Reserved
 *
 *Author:	Doug Anderson
 *Date:		1/31/94
 *
 *Editors:
 *
 *Remarks:
 *
 *
 *****************************************************************************/


/*Definitions - Defines & Constants ----------------------------------------- */

  /* Define the operating system */
#if (defined(__linux__))
# define _DPT_LINUX
#elif (defined(__bsdi__))
# define _DPT_BSDI
#elif (defined(__FreeBSD__))
# define _DPT_FREE_BSD
#else
# define _DPT_SCO
#endif

#if defined (ZIL_CURSES)
#define		_DPT_CURSES
#else
#define         _DPT_MOTIF
#endif

  /* Redefine 'far' to nothing - no far pointer type required in UNIX */
#define		far

  /* Define the mutually exclusive semaphore type */
#define		SEMAPHORE_T	unsigned int *
  /* Define a handle to a DLL */
#define		DLL_HANDLE_T	unsigned int *

#endif
/*	BSDI osd_util.h,v 1.8 1998/06/03 19:14:58 karels Exp	*/

/*
 * Copyright (c) 1996-1999 Distributed Processing Technology Corporation
 * All rights reserved.
 *
 * Redistribution and use in source form, with or without modification, are
 * permitted provided that redistributions of source code must retain the
 * above copyright notice, this list of conditions and the following disclaimer.
 *
 * This software is provided `as is' by Distributed Processing Technology 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 Distributed Processing Technology 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
 * interruptions) 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 driver software, even if advised
 * of the possibility of such damage.
 *
 */

#ifndef         __OSD_UTIL_H
#define         __OSD_UTIL_H

/*File - OSD_UTIL.H
 ****************************************************************************
 *
 *Description:
 *
 *      This file contains defines and function prototypes that are
 *operating system dependent.  The resources defined in this file
 *are not specific to any particular application.
 *
 *Copyright Distributed Processing Technology, Corp.
 *        140 Candace Dr.
 *        Maitland, Fl. 32751   USA
 *        Phone: (407) 830-5522  Fax: (407) 260-5366
 *        All Rights Reserved
 *
 *Author:       Doug Anderson
 *Date:         1/7/94
 *
 *Editors:
 *
 *Remarks:
 *
 *
 *****************************************************************************/


/*Definitions - Defines & Constants ----------------------------------------- */

/*----------------------------- */
/* Operating system selections: */
/*----------------------------- */

/*#define               _DPT_MSDOS      */
/*#define               _DPT_WIN_3X     */
/*#define               _DPT_WIN_4X     */
/*#define               _DPT_WIN_NT     */
/*#define               _DPT_NETWARE    */
/*#define               _DPT_OS2        */
/*#define               _DPT_SCO        */
/*#define               _DPT_UNIXWARE   */
/*#define               _DPT_SOLARIS    */
/*#define               _DPT_NEXTSTEP   */
/*#define               _DPT_BANYAN     */

/*-------------------------------- */
/* Include the OS specific defines */
/*-------------------------------- */

/*#define       OS_SELECTION    From Above List */
/*#define       SEMAPHORE_T     ??? */
/*#define       DLL_HANDLE_T    ??? */

#if (defined(KERNEL) && (defined(__FreeBSD__) || defined(__bsdi__)))
# include        "i386/isa/dpt_osd_defs.h"
#else
# include        "osd_defs.h"
#endif

#ifndef DPT_UNALIGNED
   #define      DPT_UNALIGNED
#endif

#ifndef DPT_EXPORT
   #define      DPT_EXPORT
#endif

#ifndef DPT_IMPORT
   #define      DPT_IMPORT
#endif

#ifndef DPT_RUNTIME_IMPORT
   #define      DPT_RUNTIME_IMPORT  DPT_IMPORT
#endif

/*--------------------- */
/* OS dependent defines */
/*--------------------- */

#if defined (_DPT_MSDOS) || defined (_DPT_WIN_3X)
   #define      _DPT_16_BIT
#else
   #define      _DPT_32_BIT
#endif

#if defined (_DPT_SCO) || defined (_DPT_UNIXWARE) || defined (_DPT_SOLARIS) || defined (_DPT_AIX) || defined (SNI_MIPS) || defined (_DPT_BSDI) || defined (_DPT_FREE_BSD) || defined(_DPT_LINUX)
   #define      _DPT_UNIX
#endif

#if defined (_DPT_WIN_3x) || defined (_DPT_WIN_4X) || defined (_DPT_WIN_NT) \
	    || defined (_DPT_OS2)
   #define      _DPT_DLL_SUPPORT
#endif

#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X) && !defined (_DPT_NETWARE)
   #define      _DPT_PREEMPTIVE
#endif

#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X)
   #define      _DPT_MULTI_THREADED
#endif

#if !defined (_DPT_MSDOS)
   #define      _DPT_MULTI_TASKING
#endif

  /* These exist for platforms that   */
  /* chunk when accessing mis-aligned */
  /* data                             */
#if defined (SNI_MIPS) || defined (_DPT_SOLARIS)
   #if defined (_DPT_BIG_ENDIAN)
	#if !defined (_DPT_STRICT_ALIGN)
            #define _DPT_STRICT_ALIGN
	#endif
   #endif
#endif

  /* Determine if in C or C++ mode */
#ifdef  __cplusplus
   #define      _DPT_CPP
#else
   #define      _DPT_C
#endif

/*-------------------------------------------------------------------*/
/* Under Solaris the compiler refuses to accept code like:           */
/*   { {"DPT"}, 0, NULL .... },                                      */
/* and complains about the {"DPT"} part by saying "cannot use { }    */
/* to initialize char*".                                             */
/*                                                                   */
/* By defining these ugly macros we can get around this and also     */
/* not have to copy and #ifdef large sections of code.  I know that  */
/* these macros are *really* ugly, but they should help reduce       */
/* maintenance in the long run.                                      */
/*                                                                   */
/*-------------------------------------------------------------------*/
#if !defined (DPTSQO)
   #if defined (_DPT_SOLARIS)
      #define DPTSQO
      #define DPTSQC
   #else
      #define DPTSQO {
      #define DPTSQC }
   #endif  /* solaris */
#endif  /* DPTSQO */


/*---------------------- */
/* OS dependent typedefs */
/*---------------------- */

#if defined (_DPT_MSDOS) || defined (_DPT_SCO)
   #define BYTE unsigned char
   #define WORD unsigned short
#endif

#ifndef _DPT_TYPEDEFS
   #define _DPT_TYPEDEFS
   typedef unsigned char   uCHAR;
   typedef unsigned short  uSHORT;
   typedef unsigned int    uINT;
   typedef unsigned long   uLONG;

   typedef union {
	 uCHAR        u8[4];
	 uSHORT       u16[2];
	 uLONG        u32;
   } access_U;
#endif

#if !defined (NULL)
   #define      NULL    0
#endif


/*Prototypes - function ----------------------------------------------------- */

#ifdef  __cplusplus
   extern "C" {         /* Declare all these functions as "C" functions */
#endif

/*------------------------ */
/* Byte reversal functions */
/*------------------------ */

  /* Reverses the byte ordering of a 2 byte variable */
#if (!defined(osdSwap2))
 uSHORT       osdSwap2(DPT_UNALIGNED uSHORT *);
#endif  // !osdSwap2

  /* Reverses the byte ordering of a 4 byte variable and shifts left 8 bits */
#if (!defined(osdSwap3))
 uLONG        osdSwap3(DPT_UNALIGNED uLONG *);
#endif  // !osdSwap3


#ifdef  _DPT_NETWARE
   #include "novpass.h" /* For DPT_Bswapl() prototype */
	/* Inline the byte swap */
   #ifdef __cplusplus
	 inline uLONG osdSwap4(uLONG *inLong) {
	 return *inLong = DPT_Bswapl(*inLong);
	 }
   #else
	 #define osdSwap4(inLong)       DPT_Bswapl(inLong)
   #endif  // cplusplus
#else
	/* Reverses the byte ordering of a 4 byte variable */
# if (!defined(osdSwap4))
   uLONG        osdSwap4(DPT_UNALIGNED uLONG *);
# endif  // !osdSwap4

  /* The following functions ALWAYS swap regardless of the *
   * presence of DPT_BIG_ENDIAN                            */

   uSHORT       trueSwap2(DPT_UNALIGNED uSHORT *);
   uLONG        trueSwap4(DPT_UNALIGNED uLONG *);

#endif  // netware


/*-------------------------------------*
 * Network order swap functions        *
 *                                     *
 * These functions/macros will be used *
 * by the structure insert()/extract() *
 * functions.                          *
 *
 * We will enclose all structure       *
 * portability modifications inside    *
 * #ifdefs.  When we are ready, we     *
 * will #define DPT_PORTABLE to begin  *
 * using the modifications.            *
 *-------------------------------------*/
uLONG	netSwap4(uLONG val);

#if defined (_DPT_BIG_ENDIAN)

// for big-endian we need to swap

#ifndef NET_SWAP_2
#define NET_SWAP_2(x) (((x) >> 8) | ((x) << 8))
#endif  // NET_SWAP_2

#ifndef NET_SWAP_4
#define NET_SWAP_4(x) netSwap4((x))
#endif  // NET_SWAP_4

#else

// for little-endian we don't need to do anything

#ifndef NET_SWAP_2
#define NET_SWAP_2(x) (x)
#endif  // NET_SWAP_2

#ifndef NET_SWAP_4
#define NET_SWAP_4(x) (x)
#endif  // NET_SWAP_4

#endif  // big endian



/*----------------------------------- */
/* Run-time loadable module functions */
/*----------------------------------- */

  /* Loads the specified run-time loadable DLL */
DLL_HANDLE_T    osdLoadModule(uCHAR *);
  /* Unloads the specified run-time loadable DLL */
uSHORT          osdUnloadModule(DLL_HANDLE_T);
  /* Returns a pointer to a function inside a run-time loadable DLL */
void *          osdGetFnAddr(DLL_HANDLE_T,uCHAR *);

/*--------------------------------------- */
/* Mutually exclusive semaphore functions */
/*--------------------------------------- */

  /* Create a named semaphore */
SEMAPHORE_T     osdCreateNamedSemaphore(char *);
  /* Create a mutually exlusive semaphore */
SEMAPHORE_T     osdCreateSemaphore(void);
	/* create an event semaphore */
SEMAPHORE_T              osdCreateEventSemaphore(void);
	/* create a named event semaphore */
SEMAPHORE_T             osdCreateNamedEventSemaphore(char *);

  /* Destroy the specified mutually exclusive semaphore object */
uSHORT          osdDestroySemaphore(SEMAPHORE_T);
  /* Request access to the specified mutually exclusive semaphore */
uLONG           osdRequestSemaphore(SEMAPHORE_T,uLONG);
  /* Release access to the specified mutually exclusive semaphore */
uSHORT          osdReleaseSemaphore(SEMAPHORE_T);
	/* wait for a event to happen */
uLONG                            osdWaitForEventSemaphore(SEMAPHORE_T, uLONG);
	/* signal an event */
uLONG                            osdSignalEventSemaphore(SEMAPHORE_T);
	/* reset the event */
uLONG                            osdResetEventSemaphore(SEMAPHORE_T);

/*----------------- */
/* Thread functions */
/*----------------- */

  /* Releases control to the task switcher in non-preemptive */
  /* multitasking operating systems. */
void            osdSwitchThreads(void);

  /* Starts a thread function */
uLONG   osdStartThread(void *,void *);

/* what is my thread id */
uLONG osdGetThreadID(void);

/* wakes up the specifed thread */
void osdWakeThread(uLONG);

/* osd sleep for x milliseconds */
void osdSleep(uLONG);

#define DPT_THREAD_PRIORITY_LOWEST 0x00
#define DPT_THREAD_PRIORITY_NORMAL 0x01
#define DPT_THREAD_PRIORITY_HIGHEST 0x02

uCHAR osdSetThreadPriority(uLONG tid, uCHAR priority);

#ifdef __cplusplus
   }    /* end the xtern "C" declaration */
#endif

#endif  /* osd_util_h */
/*	BSDI sys_info.h,v 1.6 1998/06/03 19:14:59 karels Exp	*/

/*
 * Copyright (c) 1996-1999 Distributed Processing Technology Corporation
 * All rights reserved.
 *
 * Redistribution and use in source form, with or without modification, are
 * permitted provided that redistributions of source code must retain the
 * above copyright notice, this list of conditions and the following disclaimer.
 *
 * This software is provided `as is' by Distributed Processing Technology 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 Distributed Processing Technology 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
 * interruptions) 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 driver software, even if advised
 * of the possibility of such damage.
 *
 */

#ifndef         __SYS_INFO_H
#define         __SYS_INFO_H

/*File - SYS_INFO.H
 ****************************************************************************
 *
 *Description:
 *
 *      This file contains structure definitions for the OS dependent
 *layer system information buffers.
 *
 *Copyright Distributed Processing Technology, Corp.
 *        140 Candace Dr.
 *        Maitland, Fl. 32751   USA
 *        Phone: (407) 830-5522  Fax: (407) 260-5366
 *        All Rights Reserved
 *
 *Author:       Don Kemper
 *Date:         5/10/94
 *
 *Editors:
 *
 *Remarks:
 *
 *
 *****************************************************************************/


/*Include Files ------------------------------------------------------------- */

#include        "osd_util.h"

#ifndef NO_PACK
#if defined (_DPT_AIX)
#pragma options align=packed
#else
#pragma pack(1)
#endif  /* aix */
#endif  // no unpack


/*struct - driveParam_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the drive parameters seen during
 *booting.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct driveParam_S {
#else
   typedef struct  {
#endif

   uSHORT       cylinders;      /* Up to 1024 */
   uCHAR        heads;          /* Up to 255 */
   uCHAR        sectors;        /* Up to 63 */

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } driveParam_S;
#endif
/*driveParam_S - end */


/*struct - sysInfo_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the command system information that
 *should be returned by every OS dependent layer.
 *
 *---------------------------------------------------------------------------*/

/*flags - bit definitions */
#define SI_CMOS_Valid           0x0001
#define SI_NumDrivesValid       0x0002
#define SI_ProcessorValid       0x0004
#define SI_MemorySizeValid      0x0008
#define SI_DriveParamsValid     0x0010
#define SI_SmartROMverValid     0x0020
#define SI_OSversionValid       0x0040
#define SI_OSspecificValid      0x0080  /* 1 if OS structure returned */
#define SI_BusTypeValid         0x0100

#define SI_ALL_VALID            0x0FFF  /* All Std SysInfo is valid */
#define SI_NO_SmartROM          0x8000

/*busType - definitions */
#define SI_ISA_BUS      0x00
#define SI_MCA_BUS      0x01
#define SI_EISA_BUS     0x02
#define SI_PCI_BUS      0x04

#ifdef  __cplusplus
   struct sysInfo_S {
#else
   typedef struct  {
#endif

   uCHAR        drive0CMOS;             /* CMOS Drive 0 Type */
   uCHAR        drive1CMOS;             /* CMOS Drive 1 Type */
   uCHAR        numDrives;              /* 0040:0075 contents */
   uCHAR        processorFamily;        /* Same as DPTSIG's definition */
   uCHAR        processorType;          /* Same as DPTSIG's definition */
   uCHAR        smartROMMajorVersion;
   uCHAR        smartROMMinorVersion;   /* SmartROM version */
   uCHAR        smartROMRevision;
   uSHORT       flags;                  /* See bit definitions above */
   uSHORT       conventionalMemSize;    /* in KB */
   uINT         extendedMemSize;        /* in KB */
   uINT         osType;                 /* Same as DPTSIG's definition */
   uCHAR        osMajorVersion;
   uCHAR        osMinorVersion;         /* The OS version */
   uCHAR        osRevision;
#ifdef _SINIX_ADDON
   uCHAR        busType;                /* See defininitions above */
   uSHORT       osSubRevision;
   uCHAR        pad[2];                 /* For alignment */
#else
   uCHAR        osSubRevision;
   uCHAR        busType;                /* See defininitions above */
   uCHAR        pad[3];                 /* For alignment */
#endif
   driveParam_S drives[16];             /* SmartROM Logical Drives */

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } sysInfo_S;
#endif
/*sysInfo_S - end */


/*struct - DOS_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to a
 *DOS workstation.
 *
 *---------------------------------------------------------------------------*/

/*flags - bit definitions */
#define DI_DOS_HIGH             0x01    /* DOS is loaded high */
#define DI_DPMI_VALID           0x02    /* DPMI version is valid */

#ifdef  __cplusplus
   struct DOS_Info_S {
#else
   typedef struct {
#endif

   uCHAR        flags;          /* See bit definitions above */
   uSHORT       driverLocation; /* SmartROM BIOS address */
   uSHORT       DOS_version;
   uSHORT       DPMI_version;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } DOS_Info_S;
#endif
/*DOS_Info_S - end */


/*struct - Netware_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to a
 *Netware machine.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct Netware_Info_S {
#else
   typedef struct {
#endif

   uCHAR        driverName[13];         /* ie PM12NW31.DSK */
   uCHAR        serverName[48];
   uCHAR        netwareVersion;         /* The Netware OS version */
   uCHAR        netwareSubVersion;
   uCHAR        netwareRevision;
   uSHORT       maxConnections;         /* Probably  250 or 1000 */
   uSHORT       connectionsInUse;
   uSHORT       maxVolumes;
   uCHAR        unused;
   uCHAR        SFTlevel;
   uCHAR        TTSlevel;

   uCHAR        clibMajorVersion;       /* The CLIB.NLM version */
   uCHAR        clibMinorVersion;
   uCHAR        clibRevision;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } Netware_Info_S;
#endif
/*Netware_Info_S - end */


/*struct - OS2_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to an
 *OS/2 machine.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct OS2_Info_S {
#else
   typedef struct {
#endif

   uCHAR        something;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } OS2_Info_S;
#endif
/*OS2_Info_S - end */


/*struct - WinNT_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to a
 *Windows NT machine.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct WinNT_Info_S {
#else
   typedef struct {
#endif

   uCHAR        something;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } WinNT_Info_S;
#endif
/*WinNT_Info_S - end */


/*struct - SCO_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to an
 *SCO UNIX machine.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct SCO_Info_S {
#else
   typedef struct {
#endif

   uCHAR        something;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } SCO_Info_S;
#endif
/*SCO_Info_S - end */


/*struct - USL_Info_S - start
 *===========================================================================
 *
 *Description:
 *
 *      This structure defines the system information specific to a
 *USL UNIX machine.
 *
 *---------------------------------------------------------------------------*/

#ifdef  __cplusplus
   struct USL_Info_S {
#else
   typedef struct {
#endif

   uCHAR        something;

#ifdef  __cplusplus

//---------- Portability Additions ----------- in sp_sinfo.cpp
#ifdef DPT_PORTABLE
	uSHORT		netInsert(dptBuffer_S *buffer);
	uSHORT		netExtract(dptBuffer_S *buffer);
#endif // DPT PORTABLE
//--------------------------------------------

   };
#else
   } USL_Info_S;
#endif
/*USL_Info_S - end */


  /* Restore default structure packing */
#ifndef NO_UNPACK
#if defined (_DPT_AIX)
#pragma options align=reset
#elif defined (UNPACK_FOUR)
#pragma pack(4)
#else
#pragma pack()
#endif  /* aix */
#endif  // no unpack

#endif  // __SYS_INFO_H

// SPDX-License-Identifier: GPL-2.0-or-later
/***************************************************************************
                          dpti.c  -  description
                             -------------------
    begin                : Thu Sep 7 2000
    copyright            : (C) 2000 by Adaptec

			   July 30, 2001 First version being submitted
			   for inclusion in the kernel.  V2.4

    See Documentation/scsi/dpti.rst for history, notes, license info
    and credits
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *                                                                         *
 ***************************************************************************/
/***************************************************************************
 * Sat Dec 20 2003 Go Taniguchi <go@turbolinux.co.jp>
 - Support 2.6 kernel and DMA-mapping
 - ioctl fix for raid tools
 - use schedule_timeout in long long loop
 **************************************************************************/

/*#define DEBUG 1 */
/*#define UARTDELAY 1 */

#include <linux/module.h>
#include <linux/pgtable.h>

MODULE_AUTHOR("Deanna Bonds, with _lots_ of help from Mark Salyzyn");
MODULE_DESCRIPTION("Adaptec I2O RAID Driver");

////////////////////////////////////////////////////////////////

#include <linux/ioctl.h>	/* For SCSI-Passthrough */
#include <linux/uaccess.h>

#include <linux/stat.h>
#include <linux/slab.h>		/* for kmalloc() */
#include <linux/pci.h>		/* for PCI support */
#include <linux/proc_fs.h>
#include <linux/blkdev.h>
#include <linux/delay.h>	/* for udelay */
#include <linux/interrupt.h>
#include <linux/kernel.h>	/* for printk */
#include <linux/sched.h>
#include <linux/reboot.h>
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>

#include <linux/timer.h>
#include <linux/string.h>
#include <linux/ioport.h>
#include <linux/mutex.h>

#include <asm/processor.h>	/* for boot_cpu_data */
#include <asm/io.h>		/* for virt_to_bus, etc. */

#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>

#include "dpt/dptsig.h"
#include "dpti.h"

/*============================================================================
 * Create a binary signature - this is read by dptsig
 * Needed for our management apps
 *============================================================================
 */
static DEFINE_MUTEX(adpt_mutex);
static dpt_sig_S DPTI_sig = {
	{'d', 'P', 't', 'S', 'i', 'G'}, SIG_VERSION,
#ifdef __i386__
	PROC_INTEL, PROC_386 | PROC_486 | PROC_PENTIUM | PROC_SEXIUM,
#elif defined(__ia64__)
	PROC_INTEL, PROC_IA64,
#elif defined(__sparc__)
	PROC_ULTRASPARC, PROC_ULTRASPARC,
#elif defined(__alpha__)
	PROC_ALPHA, PROC_ALPHA,
#else
	(-1),(-1),
#endif
	 FT_HBADRVR, 0, OEM_DPT, OS_LINUX, CAP_OVERLAP, DEV_ALL,
	ADF_ALL_SC5, 0, 0, DPT_VERSION, DPT_REVISION, DPT_SUBREVISION,
	DPT_MONTH, DPT_DAY, DPT_YEAR, "Adaptec Linux I2O RAID Driver"
};




/*============================================================================
 * Globals
 *============================================================================
 */

static DEFINE_MUTEX(adpt_configuration_lock);

static struct i2o_sys_tbl *sys_tbl;
static dma_addr_t sys_tbl_pa;
static int sys_tbl_ind;
static int sys_tbl_len;

static adpt_hba* hba_chain = NULL;
static int hba_count = 0;

static struct class *adpt_sysfs_class;

static long adpt_unlocked_ioctl(struct file *, unsigned int, unsigned long);
#ifdef CONFIG_COMPAT
static long compat_adpt_ioctl(struct file *, unsigned int, unsigned long);
#endif

static const struct file_operations adpt_fops = {
	.unlocked_ioctl	= adpt_unlocked_ioctl,
	.open		= adpt_open,
	.release	= adpt_close,
#ifdef CONFIG_COMPAT
	.compat_ioctl	= compat_adpt_ioctl,
#endif
	.llseek		= noop_llseek,
};

/* Structures and definitions for synchronous message posting.
 * See adpt_i2o_post_wait() for description
 * */
struct adpt_i2o_post_wait_data
{
	int status;
	u32 id;
	adpt_wait_queue_head_t *wq;
	struct adpt_i2o_post_wait_data *next;
};

static struct adpt_i2o_post_wait_data *adpt_post_wait_queue = NULL;
static u32 adpt_post_wait_id = 0;
static DEFINE_SPINLOCK(adpt_post_wait_lock);


/*============================================================================
 * 				Functions
 *============================================================================
 */

static inline int dpt_dma64(adpt_hba *pHba)
{
	return (sizeof(dma_addr_t) > 4 && (pHba)->dma64);
}

static inline u32 dma_high(dma_addr_t addr)
{
	return upper_32_bits(addr);
}

static inline u32 dma_low(dma_addr_t addr)
{
	return (u32)addr;
}

static u8 adpt_read_blink_led(adpt_hba* host)
{
	if (host->FwDebugBLEDflag_P) {
		if( readb(host->FwDebugBLEDflag_P) == 0xbc ){
			return readb(host->FwDebugBLEDvalue_P);
		}
	}
	return 0;
}

/*============================================================================
 * Scsi host template interface functions
 *============================================================================
 */

#ifdef MODULE
static struct pci_device_id dptids[] = {
	{ PCI_DPT_VENDOR_ID, PCI_DPT_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
	{ PCI_DPT_VENDOR_ID, PCI_DPT_RAPTOR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,},
	{ 0, }
};
#endif

MODULE_DEVICE_TABLE(pci,dptids);

static int adpt_detect(struct scsi_host_template* sht)
{
	struct pci_dev *pDev = NULL;
	adpt_hba *pHba;
	adpt_hba *next;

	PINFO("Detecting Adaptec I2O RAID controllers...\n");

        /* search for all Adatpec I2O RAID cards */
	while ((pDev = pci_get_device( PCI_DPT_VENDOR_ID, PCI_ANY_ID, pDev))) {
		if(pDev->device == PCI_DPT_DEVICE_ID ||
		   pDev->device == PCI_DPT_RAPTOR_DEVICE_ID){
			if(adpt_install_hba(sht, pDev) ){
				PERROR("Could not Init an I2O RAID device\n");
				PERROR("Will not try to detect others.\n");
				return hba_count-1;
			}
			pci_dev_get(pDev);
		}
	}

	/* In INIT state, Activate IOPs */
	for (pHba = hba_chain; pHba; pHba = next) {
		next = pHba->next;
		// Activate does get status , init outbound, and get hrt
		if (adpt_i2o_activate_hba(pHba) < 0) {
			adpt_i2o_delete_hba(pHba);
		}
	}


	/* Active IOPs in HOLD state */

rebuild_sys_tab:
	if (hba_chain == NULL) 
		return 0;

	/*
	 * If build_sys_table fails, we kill everything and bail
	 * as we can't init the IOPs w/o a system table
	 */	
	if (adpt_i2o_build_sys_table() < 0) {
		adpt_i2o_sys_shutdown();
		return 0;
	}

	PDEBUG("HBA's in HOLD state\n");

	/* If IOP don't get online, we need to rebuild the System table */
	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		if (adpt_i2o_online_hba(pHba) < 0) {
			adpt_i2o_delete_hba(pHba);	
			goto rebuild_sys_tab;
		}
	}

	/* Active IOPs now in OPERATIONAL state */
	PDEBUG("HBA's in OPERATIONAL state\n");

	printk("dpti: If you have a lot of devices this could take a few minutes.\n");
	for (pHba = hba_chain; pHba; pHba = next) {
		next = pHba->next;
		printk(KERN_INFO"%s: Reading the hardware resource table.\n", pHba->name);
		if (adpt_i2o_lct_get(pHba) < 0){
			adpt_i2o_delete_hba(pHba);
			continue;
		}

		if (adpt_i2o_parse_lct(pHba) < 0){
			adpt_i2o_delete_hba(pHba);
			continue;
		}
		adpt_inquiry(pHba);
	}

	adpt_sysfs_class = class_create(THIS_MODULE, "dpt_i2o");
	if (IS_ERR(adpt_sysfs_class)) {
		printk(KERN_WARNING"dpti: unable to create dpt_i2o class\n");
		adpt_sysfs_class = NULL;
	}

	for (pHba = hba_chain; pHba; pHba = next) {
		next = pHba->next;
		if (adpt_scsi_host_alloc(pHba, sht) < 0){
			adpt_i2o_delete_hba(pHba);
			continue;
		}
		pHba->initialized = TRUE;
		pHba->state &= ~DPTI_STATE_RESET;
		if (adpt_sysfs_class) {
			struct device *dev = device_create(adpt_sysfs_class,
				NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL,
				"dpti%d", pHba->unit);
			if (IS_ERR(dev)) {
				printk(KERN_WARNING"dpti%d: unable to "
					"create device in dpt_i2o class\n",
					pHba->unit);
			}
		}
	}

	// Register our control device node
	// nodes will need to be created in /dev to access this
	// the nodes can not be created from within the driver
	if (hba_count && register_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER, &adpt_fops)) {
		adpt_i2o_sys_shutdown();
		return 0;
	}
	return hba_count;
}


static void adpt_release(adpt_hba *pHba)
{
	struct Scsi_Host *shost = pHba->host;

	scsi_remove_host(shost);
//	adpt_i2o_quiesce_hba(pHba);
	adpt_i2o_delete_hba(pHba);
	scsi_host_put(shost);
}


static void adpt_inquiry(adpt_hba* pHba)
{
	u32 msg[17]; 
	u32 *mptr;
	u32 *lenptr;
	int direction;
	int scsidir;
	u32 len;
	u32 reqlen;
	u8* buf;
	dma_addr_t addr;
	u8  scb[16];
	s32 rcode;

	memset(msg, 0, sizeof(msg));
	buf = dma_alloc_coherent(&pHba->pDev->dev, 80, &addr, GFP_KERNEL);
	if(!buf){
		printk(KERN_ERR"%s: Could not allocate buffer\n",pHba->name);
		return;
	}
	memset((void*)buf, 0, 36);
	
	len = 36;
	direction = 0x00000000;	
	scsidir  =0x40000000;	// DATA IN  (iop<--dev)

	if (dpt_dma64(pHba))
		reqlen = 17;		// SINGLE SGE, 64 bit
	else
		reqlen = 14;		// SINGLE SGE, 32 bit
	/* Stick the headers on */
	msg[0] = reqlen<<16 | SGL_OFFSET_12;
	msg[1] = (0xff<<24|HOST_TID<<12|ADAPTER_TID);
	msg[2] = 0;
	msg[3]  = 0;
	// Adaptec/DPT Private stuff 
	msg[4] = I2O_CMD_SCSI_EXEC|DPT_ORGANIZATION_ID<<16;
	msg[5] = ADAPTER_TID | 1<<16 /* Interpret*/;
	/* Direction, disconnect ok | sense data | simple queue , CDBLen */
	// I2O_SCB_FLAG_ENABLE_DISCONNECT | 
	// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | 
	// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
	msg[6] = scsidir|0x20a00000| 6 /* cmd len*/;

	mptr=msg+7;

	memset(scb, 0, sizeof(scb));
	// Write SCSI command into the message - always 16 byte block 
	scb[0] = INQUIRY;
	scb[1] = 0;
	scb[2] = 0;
	scb[3] = 0;
	scb[4] = 36;
	scb[5] = 0;
	// Don't care about the rest of scb

	memcpy(mptr, scb, sizeof(scb));
	mptr+=4;
	lenptr=mptr++;		/* Remember me - fill in when we know */

	/* Now fill in the SGList and command */
	*lenptr = len;
	if (dpt_dma64(pHba)) {
		*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
		*mptr++ = 1 << PAGE_SHIFT;
		*mptr++ = 0xD0000000|direction|len;
		*mptr++ = dma_low(addr);
		*mptr++ = dma_high(addr);
	} else {
		*mptr++ = 0xD0000000|direction|len;
		*mptr++ = addr;
	}

	// Send it on it's way
	rcode = adpt_i2o_post_wait(pHba, msg, reqlen<<2, 120);
	if (rcode != 0) {
		sprintf(pHba->detail, "Adaptec I2O RAID");
		printk(KERN_INFO "%s: Inquiry Error (%d)\n",pHba->name,rcode);
		if (rcode != -ETIME && rcode != -EINTR)
			dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
	} else {
		memset(pHba->detail, 0, sizeof(pHba->detail));
		memcpy(&(pHba->detail), "Vendor: Adaptec ", 16);
		memcpy(&(pHba->detail[16]), " Model: ", 8);
		memcpy(&(pHba->detail[24]), (u8*) &buf[16], 16);
		memcpy(&(pHba->detail[40]), " FW: ", 4);
		memcpy(&(pHba->detail[44]), (u8*) &buf[32], 4);
		pHba->detail[48] = '\0';	/* precautionary */
		dma_free_coherent(&pHba->pDev->dev, 80, buf, addr);
	}
	adpt_i2o_status_get(pHba);
	return ;
}


static int adpt_slave_configure(struct scsi_device * device)
{
	struct Scsi_Host *host = device->host;

	if (host->can_queue && device->tagged_supported) {
		scsi_change_queue_depth(device,
				host->can_queue - 1);
	}
	return 0;
}

static int adpt_queue_lck(struct scsi_cmnd *cmd)
{
	adpt_hba* pHba = NULL;
	struct adpt_device* pDev = NULL;	/* dpt per device information */

	/*
	 * SCSI REQUEST_SENSE commands will be executed automatically by the 
	 * Host Adapter for any errors, so they should not be executed 
	 * explicitly unless the Sense Data is zero indicating that no error 
	 * occurred.
	 */

	if ((cmd->cmnd[0] == REQUEST_SENSE) && (cmd->sense_buffer[0] != 0)) {
		cmd->result = (DID_OK << 16);
		scsi_done(cmd);
		return 0;
	}

	pHba = (adpt_hba*)cmd->device->host->hostdata[0];
	if (!pHba) {
		return FAILED;
	}

	rmb();
	if ((pHba->state) & DPTI_STATE_RESET)
		return SCSI_MLQUEUE_HOST_BUSY;

	// TODO if the cmd->device if offline then I may need to issue a bus rescan
	// followed by a get_lct to see if the device is there anymore
	if((pDev = (struct adpt_device*) (cmd->device->hostdata)) == NULL) {
		/*
		 * First command request for this device.  Set up a pointer
		 * to the device structure.  This should be a TEST_UNIT_READY
		 * command from scan_scsis_single.
		 */
		if ((pDev = adpt_find_device(pHba, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun)) == NULL) {
			// TODO: if any luns are at this bus, scsi id then fake a TEST_UNIT_READY and INQUIRY response 
			// with type 7F (for all luns less than the max for this bus,id) so the lun scan will continue.
			cmd->result = (DID_NO_CONNECT << 16);
			scsi_done(cmd);
			return 0;
		}
		cmd->device->hostdata = pDev;
	}
	pDev->pScsi_dev = cmd->device;

	/*
	 * If we are being called from when the device is being reset, 
	 * delay processing of the command until later.
	 */
	if (pDev->state & DPTI_DEV_RESET ) {
		return FAILED;
	}
	return adpt_scsi_to_i2o(pHba, cmd, pDev);
}

static DEF_SCSI_QCMD(adpt_queue)

static int adpt_bios_param(struct scsi_device *sdev, struct block_device *dev,
		sector_t capacity, int geom[])
{
	int heads=-1;
	int sectors=-1;
	int cylinders=-1;

	// *** First lets set the default geometry ****
	
	// If the capacity is less than ox2000
	if (capacity < 0x2000 ) {	// floppy
		heads = 18;
		sectors = 2;
	} 
	// else if between 0x2000 and 0x20000
	else if (capacity < 0x20000) {
		heads = 64;
		sectors = 32;
	}
	// else if between 0x20000 and 0x40000
	else if (capacity < 0x40000) {
		heads = 65;
		sectors = 63;
	}
	// else if between 0x4000 and 0x80000
	else if (capacity < 0x80000) {
		heads = 128;
		sectors = 63;
	}
	// else if greater than 0x80000
	else {
		heads = 255;
		sectors = 63;
	}
	cylinders = sector_div(capacity, heads * sectors);

	// Special case if CDROM
	if(sdev->type == 5) {  // CDROM
		heads = 252;
		sectors = 63;
		cylinders = 1111;
	}

	geom[0] = heads;
	geom[1] = sectors;
	geom[2] = cylinders;
	
	PDEBUG("adpt_bios_param: exit\n");
	return 0;
}


static const char *adpt_info(struct Scsi_Host *host)
{
	adpt_hba* pHba;

	pHba = (adpt_hba *) host->hostdata[0];
	return (char *) (pHba->detail);
}

static int adpt_show_info(struct seq_file *m, struct Scsi_Host *host)
{
	struct adpt_device* d;
	int id;
	int chan;
	adpt_hba* pHba;
	int unit;

	// Find HBA (host bus adapter) we are looking for
	mutex_lock(&adpt_configuration_lock);
	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		if (pHba->host == host) {
			break;	/* found adapter */
		}
	}
	mutex_unlock(&adpt_configuration_lock);
	if (pHba == NULL) {
		return 0;
	}
	host = pHba->host;

	seq_printf(m, "Adaptec I2O RAID Driver Version: %s\n\n", DPT_I2O_VERSION);
	seq_printf(m, "%s\n", pHba->detail);
	seq_printf(m, "SCSI Host=scsi%d  Control Node=/dev/%s  irq=%d\n", 
			pHba->host->host_no, pHba->name, host->irq);
	seq_printf(m, "\tpost fifo size  = %d\n\treply fifo size = %d\n\tsg table size   = %d\n\n",
			host->can_queue, (int) pHba->reply_fifo_size , host->sg_tablesize);

	seq_puts(m, "Devices:\n");
	for(chan = 0; chan < MAX_CHANNEL; chan++) {
		for(id = 0; id < MAX_ID; id++) {
			d = pHba->channel[chan].device[id];
			while(d) {
				seq_printf(m,"\t%-24.24s", d->pScsi_dev->vendor);
				seq_printf(m," Rev: %-8.8s\n", d->pScsi_dev->rev);

				unit = d->pI2o_dev->lct_data.tid;
				seq_printf(m, "\tTID=%d, (Channel=%d, Target=%d, Lun=%llu)  (%s)\n\n",
					       unit, (int)d->scsi_channel, (int)d->scsi_id, d->scsi_lun,
					       scsi_device_online(d->pScsi_dev)? "online":"offline"); 
				d = d->next_lun;
			}
		}
	}
	return 0;
}

/*
 *	Turn a pointer to ioctl reply data into an u32 'context'
 */
static u32 adpt_ioctl_to_context(adpt_hba * pHba, void *reply)
{
#if BITS_PER_LONG == 32
	return (u32)(unsigned long)reply;
#else
	ulong flags = 0;
	u32 nr, i;

	spin_lock_irqsave(pHba->host->host_lock, flags);
	nr = ARRAY_SIZE(pHba->ioctl_reply_context);
	for (i = 0; i < nr; i++) {
		if (pHba->ioctl_reply_context[i] == NULL) {
			pHba->ioctl_reply_context[i] = reply;
			break;
		}
	}
	spin_unlock_irqrestore(pHba->host->host_lock, flags);
	if (i >= nr) {
		printk(KERN_WARNING"%s: Too many outstanding "
				"ioctl commands\n", pHba->name);
		return (u32)-1;
	}

	return i;
#endif
}

/*
 *	Go from an u32 'context' to a pointer to ioctl reply data.
 */
static void *adpt_ioctl_from_context(adpt_hba *pHba, u32 context)
{
#if BITS_PER_LONG == 32
	return (void *)(unsigned long)context;
#else
	void *p = pHba->ioctl_reply_context[context];
	pHba->ioctl_reply_context[context] = NULL;

	return p;
#endif
}

/*===========================================================================
 * Error Handling routines
 *===========================================================================
 */

static int adpt_abort(struct scsi_cmnd * cmd)
{
	adpt_hba* pHba = NULL;	/* host bus adapter structure */
	struct adpt_device* dptdevice;	/* dpt per device information */
	u32 msg[5];
	int rcode;

	pHba = (adpt_hba*) cmd->device->host->hostdata[0];
	printk(KERN_INFO"%s: Trying to Abort\n",pHba->name);
	if ((dptdevice = (void*) (cmd->device->hostdata)) == NULL) {
		printk(KERN_ERR "%s: Unable to abort: No device in cmnd\n",pHba->name);
		return FAILED;
	}

	memset(msg, 0, sizeof(msg));
	msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|dptdevice->tid;
	msg[2] = 0;
	msg[3]= 0;
	/* Add 1 to avoid firmware treating it as invalid command */
	msg[4] = scsi_cmd_to_rq(cmd)->tag + 1;
	if (pHba->host)
		spin_lock_irq(pHba->host->host_lock);
	rcode = adpt_i2o_post_wait(pHba, msg, sizeof(msg), FOREVER);
	if (pHba->host)
		spin_unlock_irq(pHba->host->host_lock);
	if (rcode != 0) {
		if(rcode == -EOPNOTSUPP ){
			printk(KERN_INFO"%s: Abort cmd not supported\n",pHba->name);
			return FAILED;
		}
		printk(KERN_INFO"%s: Abort failed.\n",pHba->name);
		return FAILED;
	} 
	printk(KERN_INFO"%s: Abort complete.\n",pHba->name);
	return SUCCESS;
}


#define I2O_DEVICE_RESET 0x27
// This is the same for BLK and SCSI devices
// NOTE this is wrong in the i2o.h definitions
// This is not currently supported by our adapter but we issue it anyway
static int adpt_device_reset(struct scsi_cmnd* cmd)
{
	adpt_hba* pHba;
	u32 msg[4];
	u32 rcode;
	int old_state;
	struct adpt_device* d = cmd->device->hostdata;

	pHba = (void*) cmd->device->host->hostdata[0];
	printk(KERN_INFO"%s: Trying to reset device\n",pHba->name);
	if (!d) {
		printk(KERN_INFO"%s: Reset Device: Device Not found\n",pHba->name);
		return FAILED;
	}
	memset(msg, 0, sizeof(msg));
	msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1] = (I2O_DEVICE_RESET<<24|HOST_TID<<12|d->tid);
	msg[2] = 0;
	msg[3] = 0;

	if (pHba->host)
		spin_lock_irq(pHba->host->host_lock);
	old_state = d->state;
	d->state |= DPTI_DEV_RESET;
	rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
	d->state = old_state;
	if (pHba->host)
		spin_unlock_irq(pHba->host->host_lock);
	if (rcode != 0) {
		if(rcode == -EOPNOTSUPP ){
			printk(KERN_INFO"%s: Device reset not supported\n",pHba->name);
			return FAILED;
		}
		printk(KERN_INFO"%s: Device reset failed\n",pHba->name);
		return FAILED;
	} else {
		printk(KERN_INFO"%s: Device reset successful\n",pHba->name);
		return SUCCESS;
	}
}


#define I2O_HBA_BUS_RESET 0x87
// This version of bus reset is called by the eh_error handler
static int adpt_bus_reset(struct scsi_cmnd* cmd)
{
	adpt_hba* pHba;
	u32 msg[4];
	u32 rcode;

	pHba = (adpt_hba*)cmd->device->host->hostdata[0];
	memset(msg, 0, sizeof(msg));
	printk(KERN_WARNING"%s: Bus reset: SCSI Bus %d: tid: %d\n",pHba->name, cmd->device->channel,pHba->channel[cmd->device->channel].tid );
	msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1] = (I2O_HBA_BUS_RESET<<24|HOST_TID<<12|pHba->channel[cmd->device->channel].tid);
	msg[2] = 0;
	msg[3] = 0;
	if (pHba->host)
		spin_lock_irq(pHba->host->host_lock);
	rcode = adpt_i2o_post_wait(pHba, msg,sizeof(msg), FOREVER);
	if (pHba->host)
		spin_unlock_irq(pHba->host->host_lock);
	if (rcode != 0) {
		printk(KERN_WARNING"%s: Bus reset failed.\n",pHba->name);
		return FAILED;
	} else {
		printk(KERN_WARNING"%s: Bus reset success.\n",pHba->name);
		return SUCCESS;
	}
}

// This version of reset is called by the eh_error_handler
static int __adpt_reset(struct scsi_cmnd* cmd)
{
	adpt_hba* pHba;
	int rcode;
	char name[32];

	pHba = (adpt_hba*)cmd->device->host->hostdata[0];
	strncpy(name, pHba->name, sizeof(name));
	printk(KERN_WARNING"%s: Hba Reset: scsi id %d: tid: %d\n", name, cmd->device->channel, pHba->channel[cmd->device->channel].tid);
	rcode =  adpt_hba_reset(pHba);
	if(rcode == 0){
		printk(KERN_WARNING"%s: HBA reset complete\n", name);
		return SUCCESS;
	} else {
		printk(KERN_WARNING"%s: HBA reset failed (%x)\n", name, rcode);
		return FAILED;
	}
}

static int adpt_reset(struct scsi_cmnd* cmd)
{
	int rc;

	spin_lock_irq(cmd->device->host->host_lock);
	rc = __adpt_reset(cmd);
	spin_unlock_irq(cmd->device->host->host_lock);

	return rc;
}

// This version of reset is called by the ioctls and indirectly from eh_error_handler via adpt_reset
static int adpt_hba_reset(adpt_hba* pHba)
{
	int rcode;

	pHba->state |= DPTI_STATE_RESET;

	// Activate does get status , init outbound, and get hrt
	if ((rcode=adpt_i2o_activate_hba(pHba)) < 0) {
		printk(KERN_ERR "%s: Could not activate\n", pHba->name);
		adpt_i2o_delete_hba(pHba);
		return rcode;
	}

	if ((rcode=adpt_i2o_build_sys_table()) < 0) {
		adpt_i2o_delete_hba(pHba);
		return rcode;
	}
	PDEBUG("%s: in HOLD state\n",pHba->name);

	if ((rcode=adpt_i2o_online_hba(pHba)) < 0) {
		adpt_i2o_delete_hba(pHba);	
		return rcode;
	}
	PDEBUG("%s: in OPERATIONAL state\n",pHba->name);

	if ((rcode=adpt_i2o_lct_get(pHba)) < 0){
		adpt_i2o_delete_hba(pHba);
		return rcode;
	}

	if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0){
		adpt_i2o_delete_hba(pHba);
		return rcode;
	}
	pHba->state &= ~DPTI_STATE_RESET;

	scsi_host_complete_all_commands(pHba->host, DID_RESET);
	return 0;	/* return success */
}

/*===========================================================================
 * 
 *===========================================================================
 */


static void adpt_i2o_sys_shutdown(void)
{
	adpt_hba *pHba, *pNext;
	struct adpt_i2o_post_wait_data *p1, *old;

	printk(KERN_INFO "Shutting down Adaptec I2O controllers.\n");
	printk(KERN_INFO "   This could take a few minutes if there are many devices attached\n");
	/* Delete all IOPs from the controller chain */
	/* They should have already been released by the
	 * scsi-core
	 */
	for (pHba = hba_chain; pHba; pHba = pNext) {
		pNext = pHba->next;
		adpt_i2o_delete_hba(pHba);
	}

	/* Remove any timedout entries from the wait queue.  */
//	spin_lock_irqsave(&adpt_post_wait_lock, flags);
	/* Nothing should be outstanding at this point so just
	 * free them 
	 */
	for(p1 = adpt_post_wait_queue; p1;) {
		old = p1;
		p1 = p1->next;
		kfree(old);
	}
//	spin_unlock_irqrestore(&adpt_post_wait_lock, flags);
	adpt_post_wait_queue = NULL;

	printk(KERN_INFO "Adaptec I2O controllers down.\n");
}

static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev)
{

	adpt_hba* pHba = NULL;
	adpt_hba* p = NULL;
	ulong base_addr0_phys = 0;
	ulong base_addr1_phys = 0;
	u32 hba_map0_area_size = 0;
	u32 hba_map1_area_size = 0;
	void __iomem *base_addr_virt = NULL;
	void __iomem *msg_addr_virt = NULL;
	int dma64 = 0;

	int raptorFlag = FALSE;

	if(pci_enable_device(pDev)) {
		return -EINVAL;
	}

	if (pci_request_regions(pDev, "dpt_i2o")) {
		PERROR("dpti: adpt_config_hba: pci request region failed\n");
		return -EINVAL;
	}

	pci_set_master(pDev);

	/*
	 *	See if we should enable dma64 mode.
	 */
	if (sizeof(dma_addr_t) > 4 &&
	    dma_get_required_mask(&pDev->dev) > DMA_BIT_MASK(32) &&
	    dma_set_mask(&pDev->dev, DMA_BIT_MASK(64)) == 0)
		dma64 = 1;

	if (!dma64 && dma_set_mask(&pDev->dev, DMA_BIT_MASK(32)) != 0)
		return -EINVAL;

	/* adapter only supports message blocks below 4GB */
	dma_set_coherent_mask(&pDev->dev, DMA_BIT_MASK(32));

	base_addr0_phys = pci_resource_start(pDev,0);
	hba_map0_area_size = pci_resource_len(pDev,0);

	// Check if standard PCI card or single BAR Raptor
	if(pDev->device == PCI_DPT_DEVICE_ID){
		if(pDev->subsystem_device >=0xc032 && pDev->subsystem_device <= 0xc03b){
			// Raptor card with this device id needs 4M
			hba_map0_area_size = 0x400000;
		} else { // Not Raptor - it is a PCI card
			if(hba_map0_area_size > 0x100000 ){ 
				hba_map0_area_size = 0x100000;
			}
		}
	} else {// Raptor split BAR config
		// Use BAR1 in this configuration
		base_addr1_phys = pci_resource_start(pDev,1);
		hba_map1_area_size = pci_resource_len(pDev,1);
		raptorFlag = TRUE;
	}

#if BITS_PER_LONG == 64
	/*
	 *	The original Adaptec 64 bit driver has this comment here:
	 *	"x86_64 machines need more optimal mappings"
	 *
	 *	I assume some HBAs report ridiculously large mappings
	 *	and we need to limit them on platforms with IOMMUs.
	 */
	if (raptorFlag == TRUE) {
		if (hba_map0_area_size > 128)
			hba_map0_area_size = 128;
		if (hba_map1_area_size > 524288)
			hba_map1_area_size = 524288;
	} else {
		if (hba_map0_area_size > 524288)
			hba_map0_area_size = 524288;
	}
#endif

	base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
	if (!base_addr_virt) {
		pci_release_regions(pDev);
		PERROR("dpti: adpt_config_hba: io remap failed\n");
		return -EINVAL;
	}

        if(raptorFlag == TRUE) {
		msg_addr_virt = ioremap(base_addr1_phys, hba_map1_area_size );
		if (!msg_addr_virt) {
			PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
			iounmap(base_addr_virt);
			pci_release_regions(pDev);
			return -EINVAL;
		}
	} else {
		msg_addr_virt = base_addr_virt;
	}
	
	// Allocate and zero the data structure
	pHba = kzalloc(sizeof(adpt_hba), GFP_KERNEL);
	if (!pHba) {
		if (msg_addr_virt != base_addr_virt)
			iounmap(msg_addr_virt);
		iounmap(base_addr_virt);
		pci_release_regions(pDev);
		return -ENOMEM;
	}

	mutex_lock(&adpt_configuration_lock);

	if(hba_chain != NULL){
		for(p = hba_chain; p->next; p = p->next);
		p->next = pHba;
	} else {
		hba_chain = pHba;
	}
	pHba->next = NULL;
	pHba->unit = hba_count;
	sprintf(pHba->name, "dpti%d", hba_count);
	hba_count++;
	
	mutex_unlock(&adpt_configuration_lock);

	pHba->pDev = pDev;
	pHba->base_addr_phys = base_addr0_phys;

	// Set up the Virtual Base Address of the I2O Device
	pHba->base_addr_virt = base_addr_virt;
	pHba->msg_addr_virt = msg_addr_virt;
	pHba->irq_mask = base_addr_virt+0x30;
	pHba->post_port = base_addr_virt+0x40;
	pHba->reply_port = base_addr_virt+0x44;

	pHba->hrt = NULL;
	pHba->lct = NULL;
	pHba->lct_size = 0;
	pHba->status_block = NULL;
	pHba->post_count = 0;
	pHba->state = DPTI_STATE_RESET;
	pHba->pDev = pDev;
	pHba->devices = NULL;
	pHba->dma64 = dma64;

	// Initializing the spinlocks
	spin_lock_init(&pHba->state_lock);

	if(raptorFlag == 0){
		printk(KERN_INFO "Adaptec I2O RAID controller"
				 " %d at %p size=%x irq=%d%s\n", 
			hba_count-1, base_addr_virt,
			hba_map0_area_size, pDev->irq,
			dma64 ? " (64-bit DMA)" : "");
	} else {
		printk(KERN_INFO"Adaptec I2O RAID controller %d irq=%d%s\n",
			hba_count-1, pDev->irq,
			dma64 ? " (64-bit DMA)" : "");
		printk(KERN_INFO"     BAR0 %p - size= %x\n",base_addr_virt,hba_map0_area_size);
		printk(KERN_INFO"     BAR1 %p - size= %x\n",msg_addr_virt,hba_map1_area_size);
	}

	if (request_irq (pDev->irq, adpt_isr, IRQF_SHARED, pHba->name, pHba)) {
		printk(KERN_ERR"%s: Couldn't register IRQ %d\n", pHba->name, pDev->irq);
		adpt_i2o_delete_hba(pHba);
		return -EINVAL;
	}

	return 0;
}


static void adpt_i2o_delete_hba(adpt_hba* pHba)
{
	adpt_hba* p1;
	adpt_hba* p2;
	struct i2o_device* d;
	struct i2o_device* next;
	int i;
	int j;
	struct adpt_device* pDev;
	struct adpt_device* pNext;


	mutex_lock(&adpt_configuration_lock);
	if(pHba->host){
		free_irq(pHba->host->irq, pHba);
	}
	p2 = NULL;
	for( p1 = hba_chain; p1; p2 = p1,p1=p1->next){
		if(p1 == pHba) {
			if(p2) {
				p2->next = p1->next;
			} else {
				hba_chain = p1->next;
			}
			break;
		}
	}

	hba_count--;
	mutex_unlock(&adpt_configuration_lock);

	iounmap(pHba->base_addr_virt);
	pci_release_regions(pHba->pDev);
	if(pHba->msg_addr_virt != pHba->base_addr_virt){
		iounmap(pHba->msg_addr_virt);
	}
	if(pHba->FwDebugBuffer_P)
	   	iounmap(pHba->FwDebugBuffer_P);
	if(pHba->hrt) {
		dma_free_coherent(&pHba->pDev->dev,
			pHba->hrt->num_entries * pHba->hrt->entry_len << 2,
			pHba->hrt, pHba->hrt_pa);
	}
	if(pHba->lct) {
		dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
			pHba->lct, pHba->lct_pa);
	}
	if(pHba->status_block) {
		dma_free_coherent(&pHba->pDev->dev, sizeof(i2o_status_block),
			pHba->status_block, pHba->status_block_pa);
	}
	if(pHba->reply_pool) {
		dma_free_coherent(&pHba->pDev->dev,
			pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
			pHba->reply_pool, pHba->reply_pool_pa);
	}

	for(d = pHba->devices; d ; d = next){
		next = d->next;
		kfree(d);
	}
	for(i = 0 ; i < pHba->top_scsi_channel ; i++){
		for(j = 0; j < MAX_ID; j++){
			if(pHba->channel[i].device[j] != NULL){
				for(pDev = pHba->channel[i].device[j]; pDev; pDev = pNext){
					pNext = pDev->next_lun;
					kfree(pDev);
				}
			}
		}
	}
	pci_dev_put(pHba->pDev);
	if (adpt_sysfs_class)
		device_destroy(adpt_sysfs_class,
				MKDEV(DPTI_I2O_MAJOR, pHba->unit));
	kfree(pHba);

	if(hba_count <= 0){
		unregister_chrdev(DPTI_I2O_MAJOR, DPT_DRIVER);   
		if (adpt_sysfs_class) {
			class_destroy(adpt_sysfs_class);
			adpt_sysfs_class = NULL;
		}
	}
}

static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun)
{
	struct adpt_device* d;

	if (chan >= MAX_CHANNEL)
		return NULL;
	
	d = pHba->channel[chan].device[id];
	if(!d || d->tid == 0) {
		return NULL;
	}

	/* If it is the only lun at that address then this should match*/
	if(d->scsi_lun == lun){
		return d;
	}

	/* else we need to look through all the luns */
	for(d=d->next_lun ; d ; d = d->next_lun){
		if(d->scsi_lun == lun){
			return d;
		}
	}
	return NULL;
}


static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
{
	// I used my own version of the WAIT_QUEUE_HEAD
	// to handle some version differences
	// When embedded in the kernel this could go back to the vanilla one
	ADPT_DECLARE_WAIT_QUEUE_HEAD(adpt_wq_i2o_post);
	int status = 0;
	ulong flags = 0;
	struct adpt_i2o_post_wait_data *p1, *p2;
	struct adpt_i2o_post_wait_data *wait_data =
		kmalloc(sizeof(struct adpt_i2o_post_wait_data), GFP_ATOMIC);
	DECLARE_WAITQUEUE(wait, current);

	if (!wait_data)
		return -ENOMEM;

	/*
	 * The spin locking is needed to keep anyone from playing
	 * with the queue pointers and id while we do the same
	 */
	spin_lock_irqsave(&adpt_post_wait_lock, flags);
       // TODO we need a MORE unique way of getting ids
       // to support async LCT get
	wait_data->next = adpt_post_wait_queue;
	adpt_post_wait_queue = wait_data;
	adpt_post_wait_id++;
	adpt_post_wait_id &= 0x7fff;
	wait_data->id =  adpt_post_wait_id;
	spin_unlock_irqrestore(&adpt_post_wait_lock, flags);

	wait_data->wq = &adpt_wq_i2o_post;
	wait_data->status = -ETIMEDOUT;

	add_wait_queue(&adpt_wq_i2o_post, &wait);

	msg[2] |= 0x80000000 | ((u32)wait_data->id);
	timeout *= HZ;
	if((status = adpt_i2o_post_this(pHba, msg, len)) == 0){
		set_current_state(TASK_INTERRUPTIBLE);
		if(pHba->host)
			spin_unlock_irq(pHba->host->host_lock);
		if (!timeout)
			schedule();
		else{
			timeout = schedule_timeout(timeout);
			if (timeout == 0) {
				// I/O issued, but cannot get result in
				// specified time. Freeing resorces is
				// dangerous.
				status = -ETIME;
			}
		}
		if(pHba->host)
			spin_lock_irq(pHba->host->host_lock);
	}
	remove_wait_queue(&adpt_wq_i2o_post, &wait);

	if(status == -ETIMEDOUT){
		printk(KERN_INFO"dpti%d: POST WAIT TIMEOUT\n",pHba->unit);
		// We will have to free the wait_data memory during shutdown
		return status;
	}

	/* Remove the entry from the queue.  */
	p2 = NULL;
	spin_lock_irqsave(&adpt_post_wait_lock, flags);
	for(p1 = adpt_post_wait_queue; p1; p2 = p1, p1 = p1->next) {
		if(p1 == wait_data) {
			if(p1->status == I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION ) {
				status = -EOPNOTSUPP;
			}
			if(p2) {
				p2->next = p1->next;
			} else {
				adpt_post_wait_queue = p1->next;
			}
			break;
		}
	}
	spin_unlock_irqrestore(&adpt_post_wait_lock, flags);

	kfree(wait_data);

	return status;
}


static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len)
{

	u32 m = EMPTY_QUEUE;
	u32 __iomem *msg;
	ulong timeout = jiffies + 30*HZ;
	do {
		rmb();
		m = readl(pHba->post_port);
		if (m != EMPTY_QUEUE) {
			break;
		}
		if(time_after(jiffies,timeout)){
			printk(KERN_WARNING"dpti%d: Timeout waiting for message frame!\n", pHba->unit);
			return -ETIMEDOUT;
		}
		schedule_timeout_uninterruptible(1);
	} while(m == EMPTY_QUEUE);
		
	msg = pHba->msg_addr_virt + m;
	memcpy_toio(msg, data, len);
	wmb();

	//post message
	writel(m, pHba->post_port);
	wmb();

	return 0;
}


static void adpt_i2o_post_wait_complete(u32 context, int status)
{
	struct adpt_i2o_post_wait_data *p1 = NULL;
	/*
	 * We need to search through the adpt_post_wait
	 * queue to see if the given message is still
	 * outstanding.  If not, it means that the IOP
	 * took longer to respond to the message than we
	 * had allowed and timer has already expired.
	 * Not much we can do about that except log
	 * it for debug purposes, increase timeout, and recompile
	 *
	 * Lock needed to keep anyone from moving queue pointers
	 * around while we're looking through them.
	 */

	context &= 0x7fff;

	spin_lock(&adpt_post_wait_lock);
	for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
		if(p1->id == context) {
			p1->status = status;
			spin_unlock(&adpt_post_wait_lock);
			wake_up_interruptible(p1->wq);
			return;
		}
	}
	spin_unlock(&adpt_post_wait_lock);
        // If this happens we lose commands that probably really completed
	printk(KERN_DEBUG"dpti: Could Not find task %d in wait queue\n",context);
	printk(KERN_DEBUG"      Tasks in wait queue:\n");
	for(p1 = adpt_post_wait_queue; p1; p1 = p1->next) {
		printk(KERN_DEBUG"           %d\n",p1->id);
	}
	return;
}

static s32 adpt_i2o_reset_hba(adpt_hba* pHba)			
{
	u32 msg[8];
	u8* status;
	dma_addr_t addr;
	u32 m = EMPTY_QUEUE ;
	ulong timeout = jiffies + (TMOUT_IOPRESET*HZ);

	if(pHba->initialized  == FALSE) {	// First time reset should be quick
		timeout = jiffies + (25*HZ);
	} else {
		adpt_i2o_quiesce_hba(pHba);
	}

	do {
		rmb();
		m = readl(pHba->post_port);
		if (m != EMPTY_QUEUE) {
			break;
		}
		if(time_after(jiffies,timeout)){
			printk(KERN_WARNING"Timeout waiting for message!\n");
			return -ETIMEDOUT;
		}
		schedule_timeout_uninterruptible(1);
	} while (m == EMPTY_QUEUE);

	status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
	if(status == NULL) {
		adpt_send_nop(pHba, m);
		printk(KERN_ERR"IOP reset failed - no free memory.\n");
		return -ENOMEM;
	}

	msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
	msg[2]=0;
	msg[3]=0;
	msg[4]=0;
	msg[5]=0;
	msg[6]=dma_low(addr);
	msg[7]=dma_high(addr);

	memcpy_toio(pHba->msg_addr_virt+m, msg, sizeof(msg));
	wmb();
	writel(m, pHba->post_port);
	wmb();

	while(*status == 0){
		if(time_after(jiffies,timeout)){
			printk(KERN_WARNING"%s: IOP Reset Timeout\n",pHba->name);
			/* We lose 4 bytes of "status" here, but we cannot
			   free these because controller may awake and corrupt
			   those bytes at any time */
			/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
			return -ETIMEDOUT;
		}
		rmb();
		schedule_timeout_uninterruptible(1);
	}

	if(*status == 0x01 /*I2O_EXEC_IOP_RESET_IN_PROGRESS*/) {
		PDEBUG("%s: Reset in progress...\n", pHba->name);
		// Here we wait for message frame to become available
		// indicated that reset has finished
		do {
			rmb();
			m = readl(pHba->post_port);
			if (m != EMPTY_QUEUE) {
				break;
			}
			if(time_after(jiffies,timeout)){
				printk(KERN_ERR "%s:Timeout waiting for IOP Reset.\n",pHba->name);
				/* We lose 4 bytes of "status" here, but we
				   cannot free these because controller may
				   awake and corrupt those bytes at any time */
				/* dma_free_coherent(&pHba->pDev->dev, 4, buf, addr); */
				return -ETIMEDOUT;
			}
			schedule_timeout_uninterruptible(1);
		} while (m == EMPTY_QUEUE);
		// Flush the offset
		adpt_send_nop(pHba, m);
	}
	adpt_i2o_status_get(pHba);
	if(*status == 0x02 ||
			pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
		printk(KERN_WARNING"%s: Reset reject, trying to clear\n",
				pHba->name);
	} else {
		PDEBUG("%s: Reset completed.\n", pHba->name);
	}

	dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
#ifdef UARTDELAY
	// This delay is to allow someone attached to the card through the debug UART to 
	// set up the dump levels that they want before the rest of the initialization sequence
	adpt_delay(20000);
#endif
	return 0;
}


static int adpt_i2o_parse_lct(adpt_hba* pHba)
{
	int i;
	int max;
	int tid;
	struct i2o_device *d;
	i2o_lct *lct = pHba->lct;
	u8 bus_no = 0;
	s16 scsi_id;
	u64 scsi_lun;
	u32 buf[10]; // larger than 7, or 8 ...
	struct adpt_device* pDev; 
	
	if (lct == NULL) {
		printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
		return -1;
	}
	
	max = lct->table_size;	
	max -= 3;
	max /= 9;

	for(i=0;i<max;i++) {
		if( lct->lct_entry[i].user_tid != 0xfff){
			/*
			 * If we have hidden devices, we need to inform the upper layers about
			 * the possible maximum id reference to handle device access when
			 * an array is disassembled. This code has no other purpose but to
			 * allow us future access to devices that are currently hidden
			 * behind arrays, hotspares or have not been configured (JBOD mode).
			 */
			if( lct->lct_entry[i].class_id != I2O_CLASS_RANDOM_BLOCK_STORAGE &&
			    lct->lct_entry[i].class_id != I2O_CLASS_SCSI_PERIPHERAL &&
			    lct->lct_entry[i].class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
			    	continue;
			}
			tid = lct->lct_entry[i].tid;
			// I2O_DPT_DEVICE_INFO_GROUP_NO;
			if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
				continue;
			}
			bus_no = buf[0]>>16;
			scsi_id = buf[1];
			scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
			if(bus_no >= MAX_CHANNEL) {	// Something wrong skip it
				printk(KERN_WARNING"%s: Channel number %d out of range \n", pHba->name, bus_no);
				continue;
			}
			if (scsi_id >= MAX_ID){
				printk(KERN_WARNING"%s: SCSI ID %d out of range \n", pHba->name, bus_no);
				continue;
			}
			if(bus_no > pHba->top_scsi_channel){
				pHba->top_scsi_channel = bus_no;
			}
			if(scsi_id > pHba->top_scsi_id){
				pHba->top_scsi_id = scsi_id;
			}
			if(scsi_lun > pHba->top_scsi_lun){
				pHba->top_scsi_lun = scsi_lun;
			}
			continue;
		}
		d = kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
		if(d==NULL)
		{
			printk(KERN_CRIT"%s: Out of memory for I2O device data.\n",pHba->name);
			return -ENOMEM;
		}
		
		d->controller = pHba;
		d->next = NULL;

		memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));

		d->flags = 0;
		tid = d->lct_data.tid;
		adpt_i2o_report_hba_unit(pHba, d);
		adpt_i2o_install_device(pHba, d);
	}
	bus_no = 0;
	for(d = pHba->devices; d ; d = d->next) {
		if(d->lct_data.class_id  == I2O_CLASS_BUS_ADAPTER_PORT ||
		   d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PORT){
			tid = d->lct_data.tid;
			// TODO get the bus_no from hrt-but for now they are in order
			//bus_no = 
			if(bus_no > pHba->top_scsi_channel){
				pHba->top_scsi_channel = bus_no;
			}
			pHba->channel[bus_no].type = d->lct_data.class_id;
			pHba->channel[bus_no].tid = tid;
			if(adpt_i2o_query_scalar(pHba, tid, 0x0200, -1, buf, 28)>=0)
			{
				pHba->channel[bus_no].scsi_id = buf[1];
				PDEBUG("Bus %d - SCSI ID %d.\n", bus_no, buf[1]);
			}
			// TODO remove - this is just until we get from hrt
			bus_no++;
			if(bus_no >= MAX_CHANNEL) {	// Something wrong skip it
				printk(KERN_WARNING"%s: Channel number %d out of range - LCT\n", pHba->name, bus_no);
				break;
			}
		}
	}

	// Setup adpt_device table
	for(d = pHba->devices; d ; d = d->next) {
		if(d->lct_data.class_id  == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
		   d->lct_data.class_id  == I2O_CLASS_SCSI_PERIPHERAL ||
		   d->lct_data.class_id  == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){

			tid = d->lct_data.tid;
			scsi_id = -1;
			// I2O_DPT_DEVICE_INFO_GROUP_NO;
			if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)>=0) {
				bus_no = buf[0]>>16;
				scsi_id = buf[1];
				scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
				if(bus_no >= MAX_CHANNEL) {	// Something wrong skip it
					continue;
				}
				if (scsi_id >= MAX_ID) {
					continue;
				}
				if( pHba->channel[bus_no].device[scsi_id] == NULL){
					pDev =  kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
					if(pDev == NULL) {
						return -ENOMEM;
					}
					pHba->channel[bus_no].device[scsi_id] = pDev;
				} else {
					for( pDev = pHba->channel[bus_no].device[scsi_id];	
							pDev->next_lun; pDev = pDev->next_lun){
					}
					pDev->next_lun = kzalloc(sizeof(struct adpt_device),GFP_KERNEL);
					if(pDev->next_lun == NULL) {
						return -ENOMEM;
					}
					pDev = pDev->next_lun;
				}
				pDev->tid = tid;
				pDev->scsi_channel = bus_no;
				pDev->scsi_id = scsi_id;
				pDev->scsi_lun = scsi_lun;
				pDev->pI2o_dev = d;
				d->owner = pDev;
				pDev->type = (buf[0])&0xff;
				pDev->flags = (buf[0]>>8)&0xff;
				if(scsi_id > pHba->top_scsi_id){
					pHba->top_scsi_id = scsi_id;
				}
				if(scsi_lun > pHba->top_scsi_lun){
					pHba->top_scsi_lun = scsi_lun;
				}
			}
			if(scsi_id == -1){
				printk(KERN_WARNING"Could not find SCSI ID for %s\n",
						d->lct_data.identity_tag);
			}
		}
	}
	return 0;
}


/*
 *	Each I2O controller has a chain of devices on it - these match
 *	the useful parts of the LCT of the board.
 */
 
static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d)
{
	mutex_lock(&adpt_configuration_lock);
	d->controller=pHba;
	d->owner=NULL;
	d->next=pHba->devices;
	d->prev=NULL;
	if (pHba->devices != NULL){
		pHba->devices->prev=d;
	}
	pHba->devices=d;
	*d->dev_name = 0;

	mutex_unlock(&adpt_configuration_lock);
	return 0;
}

static int adpt_open(struct inode *inode, struct file *file)
{
	int minor;
	adpt_hba* pHba;

	mutex_lock(&adpt_mutex);
	//TODO check for root access
	//
	minor = iminor(inode);
	if (minor >= hba_count) {
		mutex_unlock(&adpt_mutex);
		return -ENXIO;
	}
	mutex_lock(&adpt_configuration_lock);
	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		if (pHba->unit == minor) {
			break;	/* found adapter */
		}
	}
	if (pHba == NULL) {
		mutex_unlock(&adpt_configuration_lock);
		mutex_unlock(&adpt_mutex);
		return -ENXIO;
	}

//	if(pHba->in_use){
	//	mutex_unlock(&adpt_configuration_lock);
//		return -EBUSY;
//	}

	pHba->in_use = 1;
	mutex_unlock(&adpt_configuration_lock);
	mutex_unlock(&adpt_mutex);

	return 0;
}

static int adpt_close(struct inode *inode, struct file *file)
{
	int minor;
	adpt_hba* pHba;

	minor = iminor(inode);
	if (minor >= hba_count) {
		return -ENXIO;
	}
	mutex_lock(&adpt_configuration_lock);
	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		if (pHba->unit == minor) {
			break;	/* found adapter */
		}
	}
	mutex_unlock(&adpt_configuration_lock);
	if (pHba == NULL) {
		return -ENXIO;
	}

	pHba->in_use = 0;

	return 0;
}


static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
{
	u32 msg[MAX_MESSAGE_SIZE];
	u32* reply = NULL;
	u32 size = 0;
	u32 reply_size = 0;
	u32 __user *user_msg = arg;
	u32 __user * user_reply = NULL;
	void **sg_list = NULL;
	u32 sg_offset = 0;
	u32 sg_count = 0;
	int sg_index = 0;
	u32 i = 0;
	u32 rcode = 0;
	void *p = NULL;
	dma_addr_t addr;
	ulong flags = 0;

	memset(&msg, 0, MAX_MESSAGE_SIZE*4);
	// get user msg size in u32s 
	if(get_user(size, &user_msg[0])){
		return -EFAULT;
	}
	size = size>>16;

	user_reply = &user_msg[size];
	if(size > MAX_MESSAGE_SIZE){
		return -EFAULT;
	}
	size *= 4; // Convert to bytes

	/* Copy in the user's I2O command */
	if(copy_from_user(msg, user_msg, size)) {
		return -EFAULT;
	}
	get_user(reply_size, &user_reply[0]);
	reply_size = reply_size>>16;
	if(reply_size > REPLY_FRAME_SIZE){
		reply_size = REPLY_FRAME_SIZE;
	}
	reply_size *= 4;
	reply = kzalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
	if(reply == NULL) {
		printk(KERN_WARNING"%s: Could not allocate reply buffer\n",pHba->name);
		return -ENOMEM;
	}
	sg_offset = (msg[0]>>4)&0xf;
	msg[2] = 0x40000000; // IOCTL context
	msg[3] = adpt_ioctl_to_context(pHba, reply);
	if (msg[3] == (u32)-1) {
		rcode = -EBUSY;
		goto free;
	}

	sg_list = kcalloc(pHba->sg_tablesize, sizeof(*sg_list), GFP_KERNEL);
	if (!sg_list) {
		rcode = -ENOMEM;
		goto free;
	}
	if(sg_offset) {
		// TODO add 64 bit API
		struct sg_simple_element *sg =  (struct sg_simple_element*) (msg+sg_offset);
		sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
		if (sg_count > pHba->sg_tablesize){
			printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", pHba->name,sg_count);
			rcode = -EINVAL;
			goto free;
		}

		for(i = 0; i < sg_count; i++) {
			int sg_size;

			if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
				printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",pHba->name,i,  sg[i].flag_count);
				rcode = -EINVAL;
				goto cleanup;
			}
			sg_size = sg[i].flag_count & 0xffffff;      
			/* Allocate memory for the transfer */
			p = dma_alloc_coherent(&pHba->pDev->dev, sg_size, &addr, GFP_KERNEL);
			if(!p) {
				printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
						pHba->name,sg_size,i,sg_count);
				rcode = -ENOMEM;
				goto cleanup;
			}
			sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
			/* Copy in the user's SG buffer if necessary */
			if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
				// sg_simple_element API is 32 bit
				if (copy_from_user(p,(void __user *)(ulong)sg[i].addr_bus, sg_size)) {
					printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",pHba->name,i);
					rcode = -EFAULT;
					goto cleanup;
				}
			}
			/* sg_simple_element API is 32 bit, but addr < 4GB */
			sg[i].addr_bus = addr;
		}
	}

	do {
		/*
		 * Stop any new commands from enterring the
		 * controller while processing the ioctl
		 */
		if (pHba->host) {
			scsi_block_requests(pHba->host);
			spin_lock_irqsave(pHba->host->host_lock, flags);
		}
		rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
		if (rcode != 0)
			printk("adpt_i2o_passthru: post wait failed %d %p\n",
					rcode, reply);
		if (pHba->host) {
			spin_unlock_irqrestore(pHba->host->host_lock, flags);
			scsi_unblock_requests(pHba->host);
		}
	} while (rcode == -ETIMEDOUT);

	if(rcode){
		goto cleanup;
	}

	if(sg_offset) {
	/* Copy back the Scatter Gather buffers back to user space */
		u32 j;
		// TODO add 64 bit API
		struct sg_simple_element* sg;
		int sg_size;

		// re-acquire the original message to handle correctly the sg copy operation
		memset(&msg, 0, MAX_MESSAGE_SIZE*4); 
		// get user msg size in u32s 
		if(get_user(size, &user_msg[0])){
			rcode = -EFAULT; 
			goto cleanup; 
		}
		size = size>>16;
		size *= 4;
		if (size > MAX_MESSAGE_SIZE) {
			rcode = -EINVAL;
			goto cleanup;
		}
		/* Copy in the user's I2O command */
		if (copy_from_user (msg, user_msg, size)) {
			rcode = -EFAULT;
			goto cleanup;
		}
		sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);

		// TODO add 64 bit API
		sg 	 = (struct sg_simple_element*)(msg + sg_offset);
		for (j = 0; j < sg_count; j++) {
			/* Copy out the SG list to user's buffer if necessary */
			if(! (sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
				sg_size = sg[j].flag_count & 0xffffff; 
				// sg_simple_element API is 32 bit
				if (copy_to_user((void __user *)(ulong)sg[j].addr_bus,sg_list[j], sg_size)) {
					printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",pHba->name, sg_list[j], sg[j].addr_bus);
					rcode = -EFAULT;
					goto cleanup;
				}
			}
		}
	} 

	/* Copy back the reply to user space */
	if (reply_size) {
		// we wrote our own values for context - now restore the user supplied ones
		if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
			printk(KERN_WARNING"%s: Could not copy message context FROM user\n",pHba->name);
			rcode = -EFAULT;
		}
		if(copy_to_user(user_reply, reply, reply_size)) {
			printk(KERN_WARNING"%s: Could not copy reply TO user\n",pHba->name);
			rcode = -EFAULT;
		}
	}


cleanup:
	if (rcode != -ETIME && rcode != -EINTR) {
		struct sg_simple_element *sg =
				(struct sg_simple_element*) (msg +sg_offset);
		while(sg_index) {
			if(sg_list[--sg_index]) {
				dma_free_coherent(&pHba->pDev->dev,
					sg[sg_index].flag_count & 0xffffff,
					sg_list[sg_index],
					sg[sg_index].addr_bus);
			}
		}
	}

free:
	kfree(sg_list);
	kfree(reply);
	return rcode;
}

#if defined __ia64__ 
static void adpt_ia64_info(sysInfo_S* si)
{
	// This is all the info we need for now
	// We will add more info as our new
	// managmenent utility requires it
	si->processorType = PROC_IA64;
}
#endif

#if defined __sparc__ 
static void adpt_sparc_info(sysInfo_S* si)
{
	// This is all the info we need for now
	// We will add more info as our new
	// managmenent utility requires it
	si->processorType = PROC_ULTRASPARC;
}
#endif
#if defined __alpha__ 
static void adpt_alpha_info(sysInfo_S* si)
{
	// This is all the info we need for now
	// We will add more info as our new
	// managmenent utility requires it
	si->processorType = PROC_ALPHA;
}
#endif

#if defined __i386__

#include <uapi/asm/vm86.h>

static void adpt_i386_info(sysInfo_S* si)
{
	// This is all the info we need for now
	// We will add more info as our new
	// managmenent utility requires it
	switch (boot_cpu_data.x86) {
	case CPU_386:
		si->processorType = PROC_386;
		break;
	case CPU_486:
		si->processorType = PROC_486;
		break;
	case CPU_586:
		si->processorType = PROC_PENTIUM;
		break;
	default:  // Just in case 
		si->processorType = PROC_PENTIUM;
		break;
	}
}
#endif

/*
 * This routine returns information about the system.  This does not effect
 * any logic and if the info is wrong - it doesn't matter.
 */

/* Get all the info we can not get from kernel services */
static int adpt_system_info(void __user *buffer)
{
	sysInfo_S si;

	memset(&si, 0, sizeof(si));

	si.osType = OS_LINUX;
	si.osMajorVersion = 0;
	si.osMinorVersion = 0;
	si.osRevision = 0;
	si.busType = SI_PCI_BUS;
	si.processorFamily = DPTI_sig.dsProcessorFamily;

#if defined __i386__
	adpt_i386_info(&si);
#elif defined (__ia64__)
	adpt_ia64_info(&si);
#elif defined(__sparc__)
	adpt_sparc_info(&si);
#elif defined (__alpha__)
	adpt_alpha_info(&si);
#else
	si.processorType = 0xff ;
#endif
	if (copy_to_user(buffer, &si, sizeof(si))){
		printk(KERN_WARNING"dpti: Could not copy buffer TO user\n");
		return -EFAULT;
	}

	return 0;
}

static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg)
{
	int minor;
	int error = 0;
	adpt_hba* pHba;
	ulong flags = 0;
	void __user *argp = (void __user *)arg;

	minor = iminor(inode);
	if (minor >= DPTI_MAX_HBA){
		return -ENXIO;
	}
	mutex_lock(&adpt_configuration_lock);
	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		if (pHba->unit == minor) {
			break;	/* found adapter */
		}
	}
	mutex_unlock(&adpt_configuration_lock);
	if(pHba == NULL){
		return -ENXIO;
	}

	while((volatile u32) pHba->state & DPTI_STATE_RESET )
		schedule_timeout_uninterruptible(2);

	switch (cmd) {
	// TODO: handle 3 cases
	case DPT_SIGNATURE:
		if (copy_to_user(argp, &DPTI_sig, sizeof(DPTI_sig))) {
			return -EFAULT;
		}
		break;
	case I2OUSRCMD:
		return adpt_i2o_passthru(pHba, argp);

	case DPT_CTRLINFO:{
		drvrHBAinfo_S HbaInfo;

#define FLG_OSD_PCI_VALID 0x0001
#define FLG_OSD_DMA	  0x0002
#define FLG_OSD_I2O	  0x0004
		memset(&HbaInfo, 0, sizeof(HbaInfo));
		HbaInfo.drvrHBAnum = pHba->unit;
		HbaInfo.baseAddr = (ulong) pHba->base_addr_phys;
		HbaInfo.blinkState = adpt_read_blink_led(pHba);
		HbaInfo.pciBusNum =  pHba->pDev->bus->number;
		HbaInfo.pciDeviceNum=PCI_SLOT(pHba->pDev->devfn); 
		HbaInfo.Interrupt = pHba->pDev->irq; 
		HbaInfo.hbaFlags = FLG_OSD_PCI_VALID | FLG_OSD_DMA | FLG_OSD_I2O;
		if(copy_to_user(argp, &HbaInfo, sizeof(HbaInfo))){
			printk(KERN_WARNING"%s: Could not copy HbaInfo TO user\n",pHba->name);
			return -EFAULT;
		}
		break;
		}
	case DPT_SYSINFO:
		return adpt_system_info(argp);
	case DPT_BLINKLED:{
		u32 value;
		value = (u32)adpt_read_blink_led(pHba);
		if (copy_to_user(argp, &value, sizeof(value))) {
			return -EFAULT;
		}
		break;
		}
	case I2ORESETCMD: {
		struct Scsi_Host *shost = pHba->host;

		if (shost)
			spin_lock_irqsave(shost->host_lock, flags);
		adpt_hba_reset(pHba);
		if (shost)
			spin_unlock_irqrestore(shost->host_lock, flags);
		break;
	}
	case I2ORESCANCMD:
		adpt_rescan(pHba);
		break;
	default:
		return -EINVAL;
	}

	return error;
}

static long adpt_unlocked_ioctl(struct file *file, uint cmd, ulong arg)
{
	struct inode *inode;
	long ret;
 
	inode = file_inode(file);
 
	mutex_lock(&adpt_mutex);
	ret = adpt_ioctl(inode, file, cmd, arg);
	mutex_unlock(&adpt_mutex);

	return ret;
}

#ifdef CONFIG_COMPAT
static long compat_adpt_ioctl(struct file *file,
				unsigned int cmd, unsigned long arg)
{
	struct inode *inode;
	long ret;
 
	inode = file_inode(file);
 
	mutex_lock(&adpt_mutex);
 
	switch(cmd) {
		case DPT_SIGNATURE:
		case I2OUSRCMD:
		case DPT_CTRLINFO:
		case DPT_SYSINFO:
		case DPT_BLINKLED:
		case I2ORESETCMD:
		case I2ORESCANCMD:
		case (DPT_TARGET_BUSY & 0xFFFF):
		case DPT_TARGET_BUSY:
			ret = adpt_ioctl(inode, file, cmd, arg);
			break;
		default:
			ret =  -ENOIOCTLCMD;
	}
 
	mutex_unlock(&adpt_mutex);
 
	return ret;
}
#endif

static irqreturn_t adpt_isr(int irq, void *dev_id)
{
	struct scsi_cmnd* cmd;
	adpt_hba* pHba = dev_id;
	u32 m;
	void __iomem *reply;
	u32 status=0;
	u32 context;
	ulong flags = 0;
	int handled = 0;

	if (pHba == NULL){
		printk(KERN_WARNING"adpt_isr: NULL dev_id\n");
		return IRQ_NONE;
	}
	if(pHba->host)
		spin_lock_irqsave(pHba->host->host_lock, flags);

	while( readl(pHba->irq_mask) & I2O_INTERRUPT_PENDING_B) {
		m = readl(pHba->reply_port);
		if(m == EMPTY_QUEUE){
			// Try twice then give up
			rmb();
			m = readl(pHba->reply_port);
			if(m == EMPTY_QUEUE){ 
				// This really should not happen
				printk(KERN_ERR"dpti: Could not get reply frame\n");
				goto out;
			}
		}
		if (pHba->reply_pool_pa <= m &&
		    m < pHba->reply_pool_pa +
			(pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4)) {
			reply = (u8 *)pHba->reply_pool +
						(m - pHba->reply_pool_pa);
		} else {
			/* Ick, we should *never* be here */
			printk(KERN_ERR "dpti: reply frame not from pool\n");
			reply = (u8 *)bus_to_virt(m);
		}

		if (readl(reply) & MSG_FAIL) {
			u32 old_m = readl(reply+28); 
			void __iomem *msg;
			u32 old_context;
			PDEBUG("%s: Failed message\n",pHba->name);
			if(old_m >= 0x100000){
				printk(KERN_ERR"%s: Bad preserved MFA (%x)- dropping frame\n",pHba->name,old_m);
				writel(m,pHba->reply_port);
				continue;
			}
			// Transaction context is 0 in failed reply frame
			msg = pHba->msg_addr_virt + old_m;
			old_context = readl(msg+12);
			writel(old_context, reply+12);
			adpt_send_nop(pHba, old_m);
		} 
		context = readl(reply+8);
		if(context & 0x40000000){ // IOCTL
			void *p = adpt_ioctl_from_context(pHba, readl(reply+12));
			if( p != NULL) {
				memcpy_fromio(p, reply, REPLY_FRAME_SIZE * 4);
			}
			// All IOCTLs will also be post wait
		}
		if(context & 0x80000000){ // Post wait message
			status = readl(reply+16);
			if(status  >> 24){
				status &=  0xffff; /* Get detail status */
			} else {
				status = I2O_POST_WAIT_OK;
			}
			if(!(context & 0x40000000)) {
				/*
				 * The request tag is one less than the command tag
				 * as the firmware might treat a 0 tag as invalid
				 */
				cmd = scsi_host_find_tag(pHba->host,
							 readl(reply + 12) - 1);
				if(cmd != NULL) {
					printk(KERN_WARNING"%s: Apparent SCSI cmd in Post Wait Context - cmd=%p context=%x\n", pHba->name, cmd, context);
				}
			}
			adpt_i2o_post_wait_complete(context, status);
		} else { // SCSI message
			/*
			 * The request tag is one less than the command tag
			 * as the firmware might treat a 0 tag as invalid
			 */
			cmd = scsi_host_find_tag(pHba->host,
						 readl(reply + 12) - 1);
			if(cmd != NULL){
				scsi_dma_unmap(cmd);
				adpt_i2o_scsi_complete(reply, cmd);
			}
		}
		writel(m, pHba->reply_port);
		wmb();
		rmb();
	}
	handled = 1;
out:	if(pHba->host)
		spin_unlock_irqrestore(pHba->host->host_lock, flags);
	return IRQ_RETVAL(handled);
}

static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* d)
{
	int i;
	u32 msg[MAX_MESSAGE_SIZE];
	u32* mptr;
	u32* lptr;
	u32 *lenptr;
	int direction;
	int scsidir;
	int nseg;
	u32 len;
	u32 reqlen;
	s32 rcode;
	dma_addr_t addr;

	memset(msg, 0 , sizeof(msg));
	len = scsi_bufflen(cmd);
	direction = 0x00000000;	
	
	scsidir = 0x00000000;			// DATA NO XFER
	if(len) {
		/*
		 * Set SCBFlags to indicate if data is being transferred
		 * in or out, or no data transfer
		 * Note:  Do not have to verify index is less than 0 since
		 * cmd->cmnd[0] is an unsigned char
		 */
		switch(cmd->sc_data_direction){
		case DMA_FROM_DEVICE:
			scsidir  =0x40000000;	// DATA IN  (iop<--dev)
			break;
		case DMA_TO_DEVICE:
			direction=0x04000000;	// SGL OUT
			scsidir  =0x80000000;	// DATA OUT (iop-->dev)
			break;
		case DMA_NONE:
			break;
		case DMA_BIDIRECTIONAL:
			scsidir  =0x40000000;	// DATA IN  (iop<--dev)
			// Assume In - and continue;
			break;
		default:
			printk(KERN_WARNING"%s: scsi opcode 0x%x not supported.\n",
			     pHba->name, cmd->cmnd[0]);
			cmd->result = (DID_ERROR <<16);
			scsi_done(cmd);
			return 	0;
		}
	}
	// msg[0] is set later
	// I2O_CMD_SCSI_EXEC
	msg[1] = ((0xff<<24)|(HOST_TID<<12)|d->tid);
	msg[2] = 0;
	/* Add 1 to avoid firmware treating it as invalid command */
	msg[3] = scsi_cmd_to_rq(cmd)->tag + 1;
	// Our cards use the transaction context as the tag for queueing
	// Adaptec/DPT Private stuff 
	msg[4] = I2O_CMD_SCSI_EXEC|(DPT_ORGANIZATION_ID<<16);
	msg[5] = d->tid;
	/* Direction, disconnect ok | sense data | simple queue , CDBLen */
	// I2O_SCB_FLAG_ENABLE_DISCONNECT | 
	// I2O_SCB_FLAG_SIMPLE_QUEUE_TAG | 
	// I2O_SCB_FLAG_SENSE_DATA_IN_MESSAGE;
	msg[6] = scsidir|0x20a00000|cmd->cmd_len;

	mptr=msg+7;

	// Write SCSI command into the message - always 16 byte block 
	memset(mptr, 0,  16);
	memcpy(mptr, cmd->cmnd, cmd->cmd_len);
	mptr+=4;
	lenptr=mptr++;		/* Remember me - fill in when we know */
	if (dpt_dma64(pHba)) {
		reqlen = 16;		// SINGLE SGE
		*mptr++ = (0x7C<<24)+(2<<16)+0x02; /* Enable 64 bit */
		*mptr++ = 1 << PAGE_SHIFT;
	} else {
		reqlen = 14;		// SINGLE SGE
	}
	/* Now fill in the SGList and command */

	nseg = scsi_dma_map(cmd);
	BUG_ON(nseg < 0);
	if (nseg) {
		struct scatterlist *sg;

		len = 0;
		scsi_for_each_sg(cmd, sg, nseg, i) {
			lptr = mptr;
			*mptr++ = direction|0x10000000|sg_dma_len(sg);
			len+=sg_dma_len(sg);
			addr = sg_dma_address(sg);
			*mptr++ = dma_low(addr);
			if (dpt_dma64(pHba))
				*mptr++ = dma_high(addr);
			/* Make this an end of list */
			if (i == nseg - 1)
				*lptr = direction|0xD0000000|sg_dma_len(sg);
		}
		reqlen = mptr - msg;
		*lenptr = len;
		
		if(cmd->underflow && len != cmd->underflow){
			printk(KERN_WARNING"Cmd len %08X Cmd underflow %08X\n",
				len, cmd->underflow);
		}
	} else {
		*lenptr = len = 0;
		reqlen = 12;
	}
	
	/* Stick the headers on */
	msg[0] = reqlen<<16 | ((reqlen > 12) ? SGL_OFFSET_12 : SGL_OFFSET_0);
	
	// Send it on it's way
	rcode = adpt_i2o_post_this(pHba, msg, reqlen<<2);
	if (rcode == 0) {
		return 0;
	}
	return rcode;
}


static s32 adpt_scsi_host_alloc(adpt_hba* pHba, struct scsi_host_template *sht)
{
	struct Scsi_Host *host;

	host = scsi_host_alloc(sht, sizeof(adpt_hba*));
	if (host == NULL) {
		printk("%s: scsi_host_alloc returned NULL\n", pHba->name);
		return -1;
	}
	host->hostdata[0] = (unsigned long)pHba;
	pHba->host = host;

	host->irq = pHba->pDev->irq;
	/* no IO ports, so don't have to set host->io_port and
	 * host->n_io_port
	 */
	host->io_port = 0;
	host->n_io_port = 0;
				/* see comments in scsi_host.h */
	host->max_id = 16;
	host->max_lun = 256;
	host->max_channel = pHba->top_scsi_channel + 1;
	host->cmd_per_lun = 1;
	host->unique_id = (u32)sys_tbl_pa + pHba->unit;
	host->sg_tablesize = pHba->sg_tablesize;
	host->can_queue = pHba->post_fifo_size;

	return 0;
}


static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd)
{
	adpt_hba* pHba;
	u32 hba_status;
	u32 dev_status;
	u32 reply_flags = readl(reply) & 0xff00; // Leave it shifted up 8 bits 
	// I know this would look cleaner if I just read bytes
	// but the model I have been using for all the rest of the
	// io is in 4 byte words - so I keep that model
	u16 detailed_status = readl(reply+16) &0xffff;
	dev_status = (detailed_status & 0xff);
	hba_status = detailed_status >> 8;

	// calculate resid for sg 
	scsi_set_resid(cmd, scsi_bufflen(cmd) - readl(reply+20));

	pHba = (adpt_hba*) cmd->device->host->hostdata[0];

	cmd->sense_buffer[0] = '\0';  // initialize sense valid flag to false

	if(!(reply_flags & MSG_FAIL)) {
		switch(detailed_status & I2O_SCSI_DSC_MASK) {
		case I2O_SCSI_DSC_SUCCESS:
			cmd->result = (DID_OK << 16);
			// handle underflow
			if (readl(reply+20) < cmd->underflow) {
				cmd->result = (DID_ERROR <<16);
				printk(KERN_WARNING"%s: SCSI CMD underflow\n",pHba->name);
			}
			break;
		case I2O_SCSI_DSC_REQUEST_ABORTED:
			cmd->result = (DID_ABORT << 16);
			break;
		case I2O_SCSI_DSC_PATH_INVALID:
		case I2O_SCSI_DSC_DEVICE_NOT_PRESENT:
		case I2O_SCSI_DSC_SELECTION_TIMEOUT:
		case I2O_SCSI_DSC_COMMAND_TIMEOUT:
		case I2O_SCSI_DSC_NO_ADAPTER:
		case I2O_SCSI_DSC_RESOURCE_UNAVAILABLE:
			printk(KERN_WARNING"%s: SCSI Timeout-Device (%d,%d,%llu) hba status=0x%x, dev status=0x%x, cmd=0x%x\n",
				pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun, hba_status, dev_status, cmd->cmnd[0]);
			cmd->result = (DID_TIME_OUT << 16);
			break;
		case I2O_SCSI_DSC_ADAPTER_BUSY:
		case I2O_SCSI_DSC_BUS_BUSY:
			cmd->result = (DID_BUS_BUSY << 16);
			break;
		case I2O_SCSI_DSC_SCSI_BUS_RESET:
		case I2O_SCSI_DSC_BDR_MESSAGE_SENT:
			cmd->result = (DID_RESET << 16);
			break;
		case I2O_SCSI_DSC_PARITY_ERROR_FAILURE:
			printk(KERN_WARNING"%s: SCSI CMD parity error\n",pHba->name);
			cmd->result = (DID_PARITY << 16);
			break;
		case I2O_SCSI_DSC_UNABLE_TO_ABORT:
		case I2O_SCSI_DSC_COMPLETE_WITH_ERROR:
		case I2O_SCSI_DSC_UNABLE_TO_TERMINATE:
		case I2O_SCSI_DSC_MR_MESSAGE_RECEIVED:
		case I2O_SCSI_DSC_AUTOSENSE_FAILED:
		case I2O_SCSI_DSC_DATA_OVERRUN:
		case I2O_SCSI_DSC_UNEXPECTED_BUS_FREE:
		case I2O_SCSI_DSC_SEQUENCE_FAILURE:
		case I2O_SCSI_DSC_REQUEST_LENGTH_ERROR:
		case I2O_SCSI_DSC_PROVIDE_FAILURE:
		case I2O_SCSI_DSC_REQUEST_TERMINATED:
		case I2O_SCSI_DSC_IDE_MESSAGE_SENT:
		case I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT:
		case I2O_SCSI_DSC_MESSAGE_RECEIVED:
		case I2O_SCSI_DSC_INVALID_CDB:
		case I2O_SCSI_DSC_LUN_INVALID:
		case I2O_SCSI_DSC_SCSI_TID_INVALID:
		case I2O_SCSI_DSC_FUNCTION_UNAVAILABLE:
		case I2O_SCSI_DSC_NO_NEXUS:
		case I2O_SCSI_DSC_CDB_RECEIVED:
		case I2O_SCSI_DSC_LUN_ALREADY_ENABLED:
		case I2O_SCSI_DSC_QUEUE_FROZEN:
		case I2O_SCSI_DSC_REQUEST_INVALID:
		default:
			printk(KERN_WARNING"%s: SCSI error %0x-Device(%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
				pHba->name, detailed_status & I2O_SCSI_DSC_MASK, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
			       hba_status, dev_status, cmd->cmnd[0]);
			cmd->result = (DID_ERROR << 16);
			break;
		}

		// copy over the request sense data if it was a check
		// condition status
		if (dev_status == SAM_STAT_CHECK_CONDITION) {
			u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
			// Copy over the sense data
			memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
			if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && 
			   cmd->sense_buffer[2] == DATA_PROTECT ){
				/* This is to handle an array failed */
				cmd->result = (DID_TIME_OUT << 16);
				printk(KERN_WARNING"%s: SCSI Data Protect-Device (%d,%d,%llu) hba_status=0x%x, dev_status=0x%x, cmd=0x%x\n",
					pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
					hba_status, dev_status, cmd->cmnd[0]);

			}
		}
	} else {
		/* In this condtion we could not talk to the tid
		 * the card rejected it.  We should signal a retry
		 * for a limitted number of retries.
		 */
		cmd->result = (DID_TIME_OUT << 16);
		printk(KERN_WARNING"%s: I2O MSG_FAIL - Device (%d,%d,%llu) tid=%d, cmd=0x%x\n",
			pHba->name, (u32)cmd->device->channel, (u32)cmd->device->id, cmd->device->lun,
			((struct adpt_device*)(cmd->device->hostdata))->tid, cmd->cmnd[0]);
	}

	cmd->result |= (dev_status);

	scsi_done(cmd);
}


static s32 adpt_rescan(adpt_hba* pHba)
{
	s32 rcode;
	ulong flags = 0;

	if(pHba->host)
		spin_lock_irqsave(pHba->host->host_lock, flags);
	if ((rcode=adpt_i2o_lct_get(pHba)) < 0)
		goto out;
	if ((rcode=adpt_i2o_reparse_lct(pHba)) < 0)
		goto out;
	rcode = 0;
out:	if(pHba->host)
		spin_unlock_irqrestore(pHba->host->host_lock, flags);
	return rcode;
}


static s32 adpt_i2o_reparse_lct(adpt_hba* pHba)
{
	int i;
	int max;
	int tid;
	struct i2o_device *d;
	i2o_lct *lct = pHba->lct;
	u8 bus_no = 0;
	s16 scsi_id;
	u64 scsi_lun;
	u32 buf[10]; // at least 8 u32's
	struct adpt_device* pDev = NULL;
	struct i2o_device* pI2o_dev = NULL;
	
	if (lct == NULL) {
		printk(KERN_ERR "%s: LCT is empty???\n",pHba->name);
		return -1;
	}
	
	max = lct->table_size;	
	max -= 3;
	max /= 9;

	// Mark each drive as unscanned
	for (d = pHba->devices; d; d = d->next) {
		pDev =(struct adpt_device*) d->owner;
		if(!pDev){
			continue;
		}
		pDev->state |= DPTI_DEV_UNSCANNED;
	}

	printk(KERN_INFO "%s: LCT has %d entries.\n", pHba->name,max);
	
	for(i=0;i<max;i++) {
		if( lct->lct_entry[i].user_tid != 0xfff){
			continue;
		}

		if( lct->lct_entry[i].class_id == I2O_CLASS_RANDOM_BLOCK_STORAGE ||
		    lct->lct_entry[i].class_id == I2O_CLASS_SCSI_PERIPHERAL ||
		    lct->lct_entry[i].class_id == I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL ){
			tid = lct->lct_entry[i].tid;
			if(adpt_i2o_query_scalar(pHba, tid, 0x8000, -1, buf, 32)<0) {
				printk(KERN_ERR"%s: Could not query device\n",pHba->name);
				continue;
			}
			bus_no = buf[0]>>16;
			if (bus_no >= MAX_CHANNEL) {	/* Something wrong skip it */
				printk(KERN_WARNING
					"%s: Channel number %d out of range\n",
					pHba->name, bus_no);
				continue;
			}

			scsi_id = buf[1];
			scsi_lun = scsilun_to_int((struct scsi_lun *)&buf[2]);
			pDev = pHba->channel[bus_no].device[scsi_id];
			/* da lun */
			while(pDev) {
				if(pDev->scsi_lun == scsi_lun) {
					break;
				}
				pDev = pDev->next_lun;
			}
			if(!pDev ) { // Something new add it
				d = kmalloc(sizeof(struct i2o_device),
					    GFP_ATOMIC);
				if(d==NULL)
				{
					printk(KERN_CRIT "Out of memory for I2O device data.\n");
					return -ENOMEM;
				}
				
				d->controller = pHba;
				d->next = NULL;

				memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));

				d->flags = 0;
				adpt_i2o_report_hba_unit(pHba, d);
				adpt_i2o_install_device(pHba, d);
	
				pDev = pHba->channel[bus_no].device[scsi_id];	
				if( pDev == NULL){
					pDev =
					  kzalloc(sizeof(struct adpt_device),
						  GFP_ATOMIC);
					if(pDev == NULL) {
						return -ENOMEM;
					}
					pHba->channel[bus_no].device[scsi_id] = pDev;
				} else {
					while (pDev->next_lun) {
						pDev = pDev->next_lun;
					}
					pDev = pDev->next_lun =
					  kzalloc(sizeof(struct adpt_device),
						  GFP_ATOMIC);
					if(pDev == NULL) {
						return -ENOMEM;
					}
				}
				pDev->tid = d->lct_data.tid;
				pDev->scsi_channel = bus_no;
				pDev->scsi_id = scsi_id;
				pDev->scsi_lun = scsi_lun;
				pDev->pI2o_dev = d;
				d->owner = pDev;
				pDev->type = (buf[0])&0xff;
				pDev->flags = (buf[0]>>8)&0xff;
				// Too late, SCSI system has made up it's mind, but what the hey ...
				if(scsi_id > pHba->top_scsi_id){
					pHba->top_scsi_id = scsi_id;
				}
				if(scsi_lun > pHba->top_scsi_lun){
					pHba->top_scsi_lun = scsi_lun;
				}
				continue;
			} // end of new i2o device

			// We found an old device - check it
			while(pDev) {
				if(pDev->scsi_lun == scsi_lun) {
					if(!scsi_device_online(pDev->pScsi_dev)) {
						printk(KERN_WARNING"%s: Setting device (%d,%d,%llu) back online\n",
								pHba->name,bus_no,scsi_id,scsi_lun);
						if (pDev->pScsi_dev) {
							scsi_device_set_state(pDev->pScsi_dev, SDEV_RUNNING);
						}
					}
					d = pDev->pI2o_dev;
					if(d->lct_data.tid != tid) { // something changed
						pDev->tid = tid;
						memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
						if (pDev->pScsi_dev) {
							pDev->pScsi_dev->changed = TRUE;
							pDev->pScsi_dev->removable = TRUE;
						}
					}
					// Found it - mark it scanned
					pDev->state = DPTI_DEV_ONLINE;
					break;
				}
				pDev = pDev->next_lun;
			}
		}
	}
	for (pI2o_dev = pHba->devices; pI2o_dev; pI2o_dev = pI2o_dev->next) {
		pDev =(struct adpt_device*) pI2o_dev->owner;
		if(!pDev){
			continue;
		}
		// Drive offline drives that previously existed but could not be found
		// in the LCT table
		if (pDev->state & DPTI_DEV_UNSCANNED){
			pDev->state = DPTI_DEV_OFFLINE;
			printk(KERN_WARNING"%s: Device (%d,%d,%llu) offline\n",pHba->name,pDev->scsi_channel,pDev->scsi_id,pDev->scsi_lun);
			if (pDev->pScsi_dev) {
				scsi_device_set_state(pDev->pScsi_dev, SDEV_OFFLINE);
			}
		}
	}
	return 0;
}

/*============================================================================
 *  Routines from i2o subsystem
 *============================================================================
 */



/*
 *	Bring an I2O controller into HOLD state. See the spec.
 */
static int adpt_i2o_activate_hba(adpt_hba* pHba)
{
	int rcode;

	if(pHba->initialized ) {
		if (adpt_i2o_status_get(pHba) < 0) {
			if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
				printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
				return rcode;
			}
			if (adpt_i2o_status_get(pHba) < 0) {
				printk(KERN_INFO "HBA not responding.\n");
				return -1;
			}
		}

		if(pHba->status_block->iop_state == ADAPTER_STATE_FAULTED) {
			printk(KERN_CRIT "%s: hardware fault\n", pHba->name);
			return -1;
		}

		if (pHba->status_block->iop_state == ADAPTER_STATE_READY ||
		    pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
		    pHba->status_block->iop_state == ADAPTER_STATE_HOLD ||
		    pHba->status_block->iop_state == ADAPTER_STATE_FAILED) {
			adpt_i2o_reset_hba(pHba);			
			if (adpt_i2o_status_get(pHba) < 0 || pHba->status_block->iop_state != ADAPTER_STATE_RESET) {
				printk(KERN_ERR "%s: Failed to initialize.\n", pHba->name);
				return -1;
			}
		}
	} else {
		if((rcode = adpt_i2o_reset_hba(pHba)) != 0){
			printk(KERN_WARNING"%s: Could NOT reset.\n", pHba->name);
			return rcode;
		}

	}

	if (adpt_i2o_init_outbound_q(pHba) < 0) {
		return -1;
	}

	/* In HOLD state */
	
	if (adpt_i2o_hrt_get(pHba) < 0) {
		return -1;
	}

	return 0;
}

/*
 *	Bring a controller online into OPERATIONAL state. 
 */
 
static int adpt_i2o_online_hba(adpt_hba* pHba)
{
	if (adpt_i2o_systab_send(pHba) < 0)
		return -1;
	/* In READY state */

	if (adpt_i2o_enable_hba(pHba) < 0)
		return -1;

	/* In OPERATIONAL state  */
	return 0;
}

static s32 adpt_send_nop(adpt_hba*pHba,u32 m)
{
	u32 __iomem *msg;
	ulong timeout = jiffies + 5*HZ;

	while(m == EMPTY_QUEUE){
		rmb();
		m = readl(pHba->post_port);
		if(m != EMPTY_QUEUE){
			break;
		}
		if(time_after(jiffies,timeout)){
			printk(KERN_ERR "%s: Timeout waiting for message frame!\n",pHba->name);
			return 2;
		}
		schedule_timeout_uninterruptible(1);
	}
	msg = (u32 __iomem *)(pHba->msg_addr_virt + m);
	writel( THREE_WORD_MSG_SIZE | SGL_OFFSET_0,&msg[0]);
	writel( I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0,&msg[1]);
	writel( 0,&msg[2]);
	wmb();

	writel(m, pHba->post_port);
	wmb();
	return 0;
}

static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba)
{
	u8 *status;
	dma_addr_t addr;
	u32 __iomem *msg = NULL;
	int i;
	ulong timeout = jiffies + TMOUT_INITOUTBOUND*HZ;
	u32 m;

	do {
		rmb();
		m = readl(pHba->post_port);
		if (m != EMPTY_QUEUE) {
			break;
		}

		if(time_after(jiffies,timeout)){
			printk(KERN_WARNING"%s: Timeout waiting for message frame\n",pHba->name);
			return -ETIMEDOUT;
		}
		schedule_timeout_uninterruptible(1);
	} while(m == EMPTY_QUEUE);

	msg=(u32 __iomem *)(pHba->msg_addr_virt+m);

	status = dma_alloc_coherent(&pHba->pDev->dev, 4, &addr, GFP_KERNEL);
	if (!status) {
		adpt_send_nop(pHba, m);
		printk(KERN_WARNING"%s: IOP reset failed - no free memory.\n",
			pHba->name);
		return -ENOMEM;
	}

	writel(EIGHT_WORD_MSG_SIZE| SGL_OFFSET_6, &msg[0]);
	writel(I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID, &msg[1]);
	writel(0, &msg[2]);
	writel(0x0106, &msg[3]);	/* Transaction context */
	writel(4096, &msg[4]);		/* Host page frame size */
	writel((REPLY_FRAME_SIZE)<<16|0x80, &msg[5]);	/* Outbound msg frame size and Initcode */
	writel(0xD0000004, &msg[6]);		/* Simple SG LE, EOB */
	writel((u32)addr, &msg[7]);

	writel(m, pHba->post_port);
	wmb();

	// Wait for the reply status to come back
	do {
		if (*status) {
			if (*status != 0x01 /*I2O_EXEC_OUTBOUND_INIT_IN_PROGRESS*/) {
				break;
			}
		}
		rmb();
		if(time_after(jiffies,timeout)){
			printk(KERN_WARNING"%s: Timeout Initializing\n",pHba->name);
			/* We lose 4 bytes of "status" here, but we
			   cannot free these because controller may
			   awake and corrupt those bytes at any time */
			/* dma_free_coherent(&pHba->pDev->dev, 4, status, addr); */
			return -ETIMEDOUT;
		}
		schedule_timeout_uninterruptible(1);
	} while (1);

	// If the command was successful, fill the fifo with our reply
	// message packets
	if(*status != 0x04 /*I2O_EXEC_OUTBOUND_INIT_COMPLETE*/) {
		dma_free_coherent(&pHba->pDev->dev, 4, status, addr);
		return -2;
	}
	dma_free_coherent(&pHba->pDev->dev, 4, status, addr);

	if(pHba->reply_pool != NULL) {
		dma_free_coherent(&pHba->pDev->dev,
			pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
			pHba->reply_pool, pHba->reply_pool_pa);
	}

	pHba->reply_pool = dma_alloc_coherent(&pHba->pDev->dev,
				pHba->reply_fifo_size * REPLY_FRAME_SIZE * 4,
				&pHba->reply_pool_pa, GFP_KERNEL);
	if (!pHba->reply_pool) {
		printk(KERN_ERR "%s: Could not allocate reply pool\n", pHba->name);
		return -ENOMEM;
	}

	for(i = 0; i < pHba->reply_fifo_size; i++) {
		writel(pHba->reply_pool_pa + (i * REPLY_FRAME_SIZE * 4),
			pHba->reply_port);
		wmb();
	}
	adpt_i2o_status_get(pHba);
	return 0;
}


/*
 * I2O System Table.  Contains information about
 * all the IOPs in the system.  Used to inform IOPs
 * about each other's existence.
 *
 * sys_tbl_ver is the CurrentChangeIndicator that is
 * used by IOPs to track changes.
 */



static s32 adpt_i2o_status_get(adpt_hba* pHba)
{
	ulong timeout;
	u32 m;
	u32 __iomem *msg;
	u8 *status_block=NULL;

	if(pHba->status_block == NULL) {
		pHba->status_block = dma_alloc_coherent(&pHba->pDev->dev,
					sizeof(i2o_status_block),
					&pHba->status_block_pa, GFP_KERNEL);
		if(pHba->status_block == NULL) {
			printk(KERN_ERR
			"dpti%d: Get Status Block failed; Out of memory. \n", 
			pHba->unit);
			return -ENOMEM;
		}
	}
	memset(pHba->status_block, 0, sizeof(i2o_status_block));
	status_block = (u8*)(pHba->status_block);
	timeout = jiffies+TMOUT_GETSTATUS*HZ;
	do {
		rmb();
		m = readl(pHba->post_port);
		if (m != EMPTY_QUEUE) {
			break;
		}
		if(time_after(jiffies,timeout)){
			printk(KERN_ERR "%s: Timeout waiting for message !\n",
					pHba->name);
			return -ETIMEDOUT;
		}
		schedule_timeout_uninterruptible(1);
	} while(m==EMPTY_QUEUE);

	
	msg=(u32 __iomem *)(pHba->msg_addr_virt+m);

	writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg[0]);
	writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg[1]);
	writel(1, &msg[2]);
	writel(0, &msg[3]);
	writel(0, &msg[4]);
	writel(0, &msg[5]);
	writel( dma_low(pHba->status_block_pa), &msg[6]);
	writel( dma_high(pHba->status_block_pa), &msg[7]);
	writel(sizeof(i2o_status_block), &msg[8]); // 88 bytes

	//post message
	writel(m, pHba->post_port);
	wmb();

	while(status_block[87]!=0xff){
		if(time_after(jiffies,timeout)){
			printk(KERN_ERR"dpti%d: Get status timeout.\n",
				pHba->unit);
			return -ETIMEDOUT;
		}
		rmb();
		schedule_timeout_uninterruptible(1);
	}

	// Set up our number of outbound and inbound messages
	pHba->post_fifo_size = pHba->status_block->max_inbound_frames;
	if (pHba->post_fifo_size > MAX_TO_IOP_MESSAGES) {
		pHba->post_fifo_size = MAX_TO_IOP_MESSAGES;
	}

	pHba->reply_fifo_size = pHba->status_block->max_outbound_frames;
	if (pHba->reply_fifo_size > MAX_FROM_IOP_MESSAGES) {
		pHba->reply_fifo_size = MAX_FROM_IOP_MESSAGES;
	}

	// Calculate the Scatter Gather list size
	if (dpt_dma64(pHba)) {
		pHba->sg_tablesize
		  = ((pHba->status_block->inbound_frame_size * 4
		  - 14 * sizeof(u32))
		  / (sizeof(struct sg_simple_element) + sizeof(u32)));
	} else {
		pHba->sg_tablesize
		  = ((pHba->status_block->inbound_frame_size * 4
		  - 12 * sizeof(u32))
		  / sizeof(struct sg_simple_element));
	}
	if (pHba->sg_tablesize > SG_LIST_ELEMENTS) {
		pHba->sg_tablesize = SG_LIST_ELEMENTS;
	}


#ifdef DEBUG
	printk("dpti%d: State = ",pHba->unit);
	switch(pHba->status_block->iop_state) {
		case 0x01:
			printk("INIT\n");
			break;
		case 0x02:
			printk("RESET\n");
			break;
		case 0x04:
			printk("HOLD\n");
			break;
		case 0x05:
			printk("READY\n");
			break;
		case 0x08:
			printk("OPERATIONAL\n");
			break;
		case 0x10:
			printk("FAILED\n");
			break;
		case 0x11:
			printk("FAULTED\n");
			break;
		default:
			printk("%x (unknown!!)\n",pHba->status_block->iop_state);
	}
#endif
	return 0;
}

/*
 * Get the IOP's Logical Configuration Table
 */
static int adpt_i2o_lct_get(adpt_hba* pHba)
{
	u32 msg[8];
	int ret;
	u32 buf[16];

	if ((pHba->lct_size == 0) || (pHba->lct == NULL)){
		pHba->lct_size = pHba->status_block->expected_lct_size;
	}
	do {
		if (pHba->lct == NULL) {
			pHba->lct = dma_alloc_coherent(&pHba->pDev->dev,
					pHba->lct_size, &pHba->lct_pa,
					GFP_ATOMIC);
			if(pHba->lct == NULL) {
				printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
					pHba->name);
				return -ENOMEM;
			}
		}
		memset(pHba->lct, 0, pHba->lct_size);

		msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
		msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
		msg[2] = 0;
		msg[3] = 0;
		msg[4] = 0xFFFFFFFF;	/* All devices */
		msg[5] = 0x00000000;	/* Report now */
		msg[6] = 0xD0000000|pHba->lct_size;
		msg[7] = (u32)pHba->lct_pa;

		if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 360))) {
			printk(KERN_ERR "%s: LCT Get failed (status=%#10x.\n", 
				pHba->name, ret);	
			printk(KERN_ERR"Adaptec: Error Reading Hardware.\n");
			return ret;
		}

		if ((pHba->lct->table_size << 2) > pHba->lct_size) {
			pHba->lct_size = pHba->lct->table_size << 2;
			dma_free_coherent(&pHba->pDev->dev, pHba->lct_size,
					pHba->lct, pHba->lct_pa);
			pHba->lct = NULL;
		}
	} while (pHba->lct == NULL);

	PDEBUG("%s: Hardware resource table read.\n", pHba->name);


	// I2O_DPT_EXEC_IOP_BUFFERS_GROUP_NO;
	if(adpt_i2o_query_scalar(pHba, 0 , 0x8000, -1, buf, sizeof(buf))>=0) {
		pHba->FwDebugBufferSize = buf[1];
		pHba->FwDebugBuffer_P = ioremap(pHba->base_addr_phys + buf[0],
						pHba->FwDebugBufferSize);
		if (pHba->FwDebugBuffer_P) {
			pHba->FwDebugFlags_P     = pHba->FwDebugBuffer_P +
							FW_DEBUG_FLAGS_OFFSET;
			pHba->FwDebugBLEDvalue_P = pHba->FwDebugBuffer_P +
							FW_DEBUG_BLED_OFFSET;
			pHba->FwDebugBLEDflag_P  = pHba->FwDebugBLEDvalue_P + 1;
			pHba->FwDebugStrLength_P = pHba->FwDebugBuffer_P +
						FW_DEBUG_STR_LENGTH_OFFSET;
			pHba->FwDebugBuffer_P += buf[2]; 
			pHba->FwDebugFlags = 0;
		}
	}

	return 0;
}

static int adpt_i2o_build_sys_table(void)
{
	adpt_hba* pHba = hba_chain;
	int count = 0;

	if (sys_tbl)
		dma_free_coherent(&pHba->pDev->dev, sys_tbl_len,
					sys_tbl, sys_tbl_pa);

	sys_tbl_len = sizeof(struct i2o_sys_tbl) +	// Header + IOPs
				(hba_count) * sizeof(struct i2o_sys_tbl_entry);

	sys_tbl = dma_alloc_coherent(&pHba->pDev->dev,
				sys_tbl_len, &sys_tbl_pa, GFP_KERNEL);
	if (!sys_tbl) {
		printk(KERN_WARNING "SysTab Set failed. Out of memory.\n");	
		return -ENOMEM;
	}

	sys_tbl->num_entries = hba_count;
	sys_tbl->version = I2OVERSION;
	sys_tbl->change_ind = sys_tbl_ind++;

	for(pHba = hba_chain; pHba; pHba = pHba->next) {
		u64 addr;
		// Get updated Status Block so we have the latest information
		if (adpt_i2o_status_get(pHba)) {
			sys_tbl->num_entries--;
			continue; // try next one	
		}

		sys_tbl->iops[count].org_id = pHba->status_block->org_id;
		sys_tbl->iops[count].iop_id = pHba->unit + 2;
		sys_tbl->iops[count].seg_num = 0;
		sys_tbl->iops[count].i2o_version = pHba->status_block->i2o_version;
		sys_tbl->iops[count].iop_state = pHba->status_block->iop_state;
		sys_tbl->iops[count].msg_type = pHba->status_block->msg_type;
		sys_tbl->iops[count].frame_size = pHba->status_block->inbound_frame_size;
		sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
		sys_tbl->iops[count].iop_capabilities = pHba->status_block->iop_capabilities;
		addr = pHba->base_addr_phys + 0x40;
		sys_tbl->iops[count].inbound_low = dma_low(addr);
		sys_tbl->iops[count].inbound_high = dma_high(addr);

		count++;
	}

#ifdef DEBUG
{
	u32 *table = (u32*)sys_tbl;
	printk(KERN_DEBUG"sys_tbl_len=%d in 32bit words\n",(sys_tbl_len >>2));
	for(count = 0; count < (sys_tbl_len >>2); count++) {
		printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", 
			count, table[count]);
	}
}
#endif

	return 0;
}


/*
 *	 Dump the information block associated with a given unit (TID)
 */
 
static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d)
{
	char buf[64];
	int unit = d->lct_data.tid;

	printk(KERN_INFO "TID %3.3d ", unit);

	if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 3, buf, 16)>=0)
	{
		buf[16]=0;
		printk(" Vendor: %-12.12s", buf);
	}
	if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 4, buf, 16)>=0)
	{
		buf[16]=0;
		printk(" Device: %-12.12s", buf);
	}
	if(adpt_i2o_query_scalar(pHba, unit, 0xF100, 6, buf, 8)>=0)
	{
		buf[8]=0;
		printk(" Rev: %-12.12s\n", buf);
	}
#ifdef DEBUG
	 printk(KERN_INFO "\tClass: %.21s\n", adpt_i2o_get_class_name(d->lct_data.class_id));
	 printk(KERN_INFO "\tSubclass: 0x%04X\n", d->lct_data.sub_class);
	 printk(KERN_INFO "\tFlags: ");

	 if(d->lct_data.device_flags&(1<<0))
		  printk("C");	     // ConfigDialog requested
	 if(d->lct_data.device_flags&(1<<1))
		  printk("U");	     // Multi-user capable
	 if(!(d->lct_data.device_flags&(1<<4)))
		  printk("P");	     // Peer service enabled!
	 if(!(d->lct_data.device_flags&(1<<5)))
		  printk("M");	     // Mgmt service enabled!
	 printk("\n");
#endif
}

#ifdef DEBUG
/*
 *	Do i2o class name lookup
 */
static const char *adpt_i2o_get_class_name(int class)
{
	int idx = 16;
	static char *i2o_class_name[] = {
		"Executive",
		"Device Driver Module",
		"Block Device",
		"Tape Device",
		"LAN Interface",
		"WAN Interface",
		"Fibre Channel Port",
		"Fibre Channel Device",
		"SCSI Device",
		"ATE Port",
		"ATE Device",
		"Floppy Controller",
		"Floppy Device",
		"Secondary Bus Port",
		"Peer Transport Agent",
		"Peer Transport",
		"Unknown"
	};
	
	switch(class&0xFFF) {
	case I2O_CLASS_EXECUTIVE:
		idx = 0; break;
	case I2O_CLASS_DDM:
		idx = 1; break;
	case I2O_CLASS_RANDOM_BLOCK_STORAGE:
		idx = 2; break;
	case I2O_CLASS_SEQUENTIAL_STORAGE:
		idx = 3; break;
	case I2O_CLASS_LAN:
		idx = 4; break;
	case I2O_CLASS_WAN:
		idx = 5; break;
	case I2O_CLASS_FIBRE_CHANNEL_PORT:
		idx = 6; break;
	case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
		idx = 7; break;
	case I2O_CLASS_SCSI_PERIPHERAL:
		idx = 8; break;
	case I2O_CLASS_ATE_PORT:
		idx = 9; break;
	case I2O_CLASS_ATE_PERIPHERAL:
		idx = 10; break;
	case I2O_CLASS_FLOPPY_CONTROLLER:
		idx = 11; break;
	case I2O_CLASS_FLOPPY_DEVICE:
		idx = 12; break;
	case I2O_CLASS_BUS_ADAPTER_PORT:
		idx = 13; break;
	case I2O_CLASS_PEER_TRANSPORT_AGENT:
		idx = 14; break;
	case I2O_CLASS_PEER_TRANSPORT:
		idx = 15; break;
	}
	return i2o_class_name[idx];
}
#endif


static s32 adpt_i2o_hrt_get(adpt_hba* pHba)
{
	u32 msg[6];
	int ret, size = sizeof(i2o_hrt);

	do {
		if (pHba->hrt == NULL) {
			pHba->hrt = dma_alloc_coherent(&pHba->pDev->dev,
					size, &pHba->hrt_pa, GFP_KERNEL);
			if (pHba->hrt == NULL) {
				printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", pHba->name);
				return -ENOMEM;
			}
		}

		msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
		msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
		msg[2]= 0;
		msg[3]= 0;
		msg[4]= (0xD0000000 | size);    /* Simple transaction */
		msg[5]= (u32)pHba->hrt_pa;	/* Dump it here */

		if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg),20))) {
			printk(KERN_ERR "%s: Unable to get HRT (status=%#10x)\n", pHba->name, ret);
			return ret;
		}

		if (pHba->hrt->num_entries * pHba->hrt->entry_len << 2 > size) {
			int newsize = pHba->hrt->num_entries * pHba->hrt->entry_len << 2;
			dma_free_coherent(&pHba->pDev->dev, size,
				pHba->hrt, pHba->hrt_pa);
			size = newsize;
			pHba->hrt = NULL;
		}
	} while(pHba->hrt == NULL);
	return 0;
}                                                                                                                                       

/*
 *	 Query one scalar group value or a whole scalar group.
 */		    	
static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid, 
			int group, int field, void *buf, int buflen)
{
	u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
	u8 *opblk_va;
	dma_addr_t opblk_pa;
	u8 *resblk_va;
	dma_addr_t resblk_pa;

	int size;

	/* 8 bytes for header */
	resblk_va = dma_alloc_coherent(&pHba->pDev->dev,
			sizeof(u8) * (8 + buflen), &resblk_pa, GFP_KERNEL);
	if (resblk_va == NULL) {
		printk(KERN_CRIT "%s: query scalar failed; Out of memory.\n", pHba->name);
		return -ENOMEM;
	}

	opblk_va = dma_alloc_coherent(&pHba->pDev->dev,
			sizeof(opblk), &opblk_pa, GFP_KERNEL);
	if (opblk_va == NULL) {
		dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
			resblk_va, resblk_pa);
		printk(KERN_CRIT "%s: query operation failed; Out of memory.\n",
			pHba->name);
		return -ENOMEM;
	}
	if (field == -1)  		/* whole group */
			opblk[4] = -1;

	memcpy(opblk_va, opblk, sizeof(opblk));
	size = adpt_i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, pHba, tid, 
		opblk_va, opblk_pa, sizeof(opblk),
		resblk_va, resblk_pa, sizeof(u8)*(8+buflen));
	dma_free_coherent(&pHba->pDev->dev, sizeof(opblk), opblk_va, opblk_pa);
	if (size == -ETIME) {
		dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
							resblk_va, resblk_pa);
		printk(KERN_WARNING "%s: issue params failed; Timed out.\n", pHba->name);
		return -ETIME;
	} else if (size == -EINTR) {
		dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
							resblk_va, resblk_pa);
		printk(KERN_WARNING "%s: issue params failed; Interrupted.\n", pHba->name);
		return -EINTR;
	}
			
	memcpy(buf, resblk_va+8, buflen);  /* cut off header */

	dma_free_coherent(&pHba->pDev->dev, sizeof(u8) * (8+buflen),
						resblk_va, resblk_pa);
	if (size < 0)
		return size;	

	return buflen;
}


/*	Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
 *
 *	This function can be used for all UtilParamsGet/Set operations.
 *	The OperationBlock is given in opblk-buffer, 
 *	and results are returned in resblk-buffer.
 *	Note that the minimum sized resblk is 8 bytes and contains
 *	ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
 */
static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid, 
		  void *opblk_va,  dma_addr_t opblk_pa, int oplen,
		void *resblk_va, dma_addr_t resblk_pa, int reslen)
{
	u32 msg[9]; 
	u32 *res = (u32 *)resblk_va;
	int wait_status;

	msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
	msg[1] = cmd << 24 | HOST_TID << 12 | tid; 
	msg[2] = 0;
	msg[3] = 0;
	msg[4] = 0;
	msg[5] = 0x54000000 | oplen;	/* OperationBlock */
	msg[6] = (u32)opblk_pa;
	msg[7] = 0xD0000000 | reslen;	/* ResultBlock */
	msg[8] = (u32)resblk_pa;

	if ((wait_status = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 20))) {
		printk("adpt_i2o_issue_params: post_wait failed (%p)\n", resblk_va);
   		return wait_status; 	/* -DetailedStatus */
	}

	if (res[1]&0x00FF0000) { 	/* BlockStatus != SUCCESS */
		printk(KERN_WARNING "%s: %s - Error:\n  ErrorInfoSize = 0x%02x, "
			"BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
			pHba->name,
			(cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
							 : "PARAMS_GET",   
			res[1]>>24, (res[1]>>16)&0xFF, res[1]&0xFFFF);
		return -((res[1] >> 16) & 0xFF); /* -BlockStatus */
	}

	return 4 + ((res[1] & 0x0000FFFF) << 2); /* bytes used in resblk */
}


static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba)
{
	u32 msg[4];
	int ret;

	adpt_i2o_status_get(pHba);

	/* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */

	if((pHba->status_block->iop_state != ADAPTER_STATE_READY) &&
   	   (pHba->status_block->iop_state != ADAPTER_STATE_OPERATIONAL)){
		return 0;
	}

	msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
	msg[2] = 0;
	msg[3] = 0;

	if((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
		printk(KERN_INFO"dpti%d: Unable to quiesce (status=%#x).\n",
				pHba->unit, -ret);
	} else {
		printk(KERN_INFO"dpti%d: Quiesced.\n",pHba->unit);
	}

	adpt_i2o_status_get(pHba);
	return ret;
}


/* 
 * Enable IOP. Allows the IOP to resume external operations.
 */
static int adpt_i2o_enable_hba(adpt_hba* pHba)
{
	u32 msg[4];
	int ret;
	
	adpt_i2o_status_get(pHba);
	if(!pHba->status_block){
		return -ENOMEM;
	}
	/* Enable only allowed on READY state */
	if(pHba->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
		return 0;

	if(pHba->status_block->iop_state != ADAPTER_STATE_READY)
		return -EINVAL;

	msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
	msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
	msg[2]= 0;
	msg[3]= 0;

	if ((ret = adpt_i2o_post_wait(pHba, msg, sizeof(msg), 240))) {
		printk(KERN_WARNING"%s: Could not enable (status=%#10x).\n", 
			pHba->name, ret);
	} else {
		PDEBUG("%s: Enabled.\n", pHba->name);
	}

	adpt_i2o_status_get(pHba);
	return ret;
}


static int adpt_i2o_systab_send(adpt_hba* pHba)
{
	u32 msg[12];
	int ret;

	msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
	msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
	msg[2] = 0;
	msg[3] = 0;
	msg[4] = (0<<16) | ((pHba->unit+2) << 12); /* Host 0 IOP ID (unit + 2) */
	msg[5] = 0;				   /* Segment 0 */

	/* 
	 * Provide three SGL-elements:
	 * System table (SysTab), Private memory space declaration and 
	 * Private i/o space declaration  
	 */
	msg[6] = 0x54000000 | sys_tbl_len;
	msg[7] = (u32)sys_tbl_pa;
	msg[8] = 0x54000000 | 0;
	msg[9] = 0;
	msg[10] = 0xD4000000 | 0;
	msg[11] = 0;

	if ((ret=adpt_i2o_post_wait(pHba, msg, sizeof(msg), 120))) {
		printk(KERN_INFO "%s: Unable to set SysTab (status=%#10x).\n", 
			pHba->name, ret);
	}
#ifdef DEBUG
	else {
		PINFO("%s: SysTab set.\n", pHba->name);
	}
#endif

	return ret;	
}


/*============================================================================
 *
 *============================================================================
 */


#ifdef UARTDELAY 

static static void adpt_delay(int millisec)
{
	int i;
	for (i = 0; i < millisec; i++) {
		udelay(1000);	/* delay for one millisecond */
	}
}

#endif

static struct scsi_host_template driver_template = {
	.module			= THIS_MODULE,
	.name			= "dpt_i2o",
	.proc_name		= "dpt_i2o",
	.show_info		= adpt_show_info,
	.info			= adpt_info,
	.queuecommand		= adpt_queue,
	.eh_abort_handler	= adpt_abort,
	.eh_device_reset_handler = adpt_device_reset,
	.eh_bus_reset_handler	= adpt_bus_reset,
	.eh_host_reset_handler	= adpt_reset,
	.bios_param		= adpt_bios_param,
	.slave_configure	= adpt_slave_configure,
	.can_queue		= MAX_TO_IOP_MESSAGES,
	.this_id		= 7,
};

static int __init adpt_init(void)
{
	int		error;
	adpt_hba	*pHba, *next;

	printk("Loading Adaptec I2O RAID: Version " DPT_I2O_VERSION "\n");

	error = adpt_detect(&driver_template);
	if (error < 0)
		return error;
	if (hba_chain == NULL)
		return -ENODEV;

	for (pHba = hba_chain; pHba; pHba = pHba->next) {
		error = scsi_add_host(pHba->host, &pHba->pDev->dev);
		if (error)
			goto fail;
		scsi_scan_host(pHba->host);
	}
	return 0;
fail:
	for (pHba = hba_chain; pHba; pHba = next) {
		next = pHba->next;
		scsi_remove_host(pHba->host);
	}
	return error;
}

static void __exit adpt_exit(void)
{
	adpt_hba	*pHba, *next;

	for (pHba = hba_chain; pHba; pHba = next) {
		next = pHba->next;
		adpt_release(pHba);
	}
}

module_init(adpt_init);
module_exit(adpt_exit);

MODULE_LICENSE("GPL");
/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
                          dpti.h  -  description
                             -------------------
    begin                : Thu Sep 7 2000
    copyright            : (C) 2001 by Adaptec

    See Documentation/scsi/dpti.rst for history, notes, license info
    and credits
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *                                                                         *
 ***************************************************************************/

#ifndef _DPT_H
#define _DPT_H

#define MAX_TO_IOP_MESSAGES   (255)
#define MAX_FROM_IOP_MESSAGES (255)


/*
 * SCSI interface function Prototypes
 */

static int adpt_detect(struct scsi_host_template * sht);
static int adpt_queue(struct Scsi_Host *h, struct scsi_cmnd * cmd);
static int adpt_abort(struct scsi_cmnd * cmd);
static int adpt_reset(struct scsi_cmnd* cmd);
static int adpt_slave_configure(struct scsi_device *);

static const char *adpt_info(struct Scsi_Host *pSHost);
static int adpt_bios_param(struct scsi_device * sdev, struct block_device *dev,
		sector_t, int geom[]);

static int adpt_bus_reset(struct scsi_cmnd* cmd);
static int adpt_device_reset(struct scsi_cmnd* cmd);


/*
 * struct scsi_host_template (see scsi/scsi_host.h)
 */

#define DPT_DRIVER_NAME	"Adaptec I2O RAID"

#ifndef HOSTS_C

#include "dpt/sys_info.h"
#include <linux/wait.h>
#include "dpt/dpti_i2o.h"
#include "dpt/dpti_ioctl.h"

#define DPT_I2O_VERSION "2.4 Build 5go"
#define DPT_VERSION     2
#define DPT_REVISION    '4'
#define DPT_SUBREVISION '5'
#define DPT_BETA	""
#define DPT_MONTH      8 
#define DPT_DAY        7
#define DPT_YEAR        (2001-1980)

#define DPT_DRIVER	"dpt_i2o"
#define DPTI_I2O_MAJOR	(151)
#define DPT_ORGANIZATION_ID (0x1B)        /* For Private Messages */
#define DPTI_MAX_HBA	(16)
#define MAX_CHANNEL     (5)	// Maximum Channel # Supported
#define MAX_ID        	(128)	// Maximum Target ID Supported

/* Sizes in 4 byte words */
#define REPLY_FRAME_SIZE  (17)
#define MAX_MESSAGE_SIZE  (128)
#define SG_LIST_ELEMENTS  (56)

#define EMPTY_QUEUE           0xffffffff
#define I2O_INTERRUPT_PENDING_B   (0x08)

#define PCI_DPT_VENDOR_ID         (0x1044)	// DPT PCI Vendor ID
#define PCI_DPT_DEVICE_ID         (0xA501)	// DPT PCI I2O Device ID
#define PCI_DPT_RAPTOR_DEVICE_ID  (0xA511)	

/* Debugging macro from Linux Device Drivers - Rubini */
#undef PDEBUG
#ifdef DEBUG
//TODO add debug level switch
#  define PDEBUG(fmt, args...)  printk(KERN_DEBUG "dpti: " fmt, ##args)
#  define PDEBUGV(fmt, args...) printk(KERN_DEBUG "dpti: " fmt, ##args)
#else
# define PDEBUG(fmt, args...) /* not debugging: nothing */
# define PDEBUGV(fmt, args...) /* not debugging: nothing */
#endif

#define PERROR(fmt, args...) printk(KERN_ERR fmt, ##args)
#define PWARN(fmt, args...) printk(KERN_WARNING fmt, ##args)
#define PINFO(fmt, args...) printk(KERN_INFO fmt, ##args)
#define PCRIT(fmt, args...) printk(KERN_CRIT fmt, ##args)

#define SHUTDOWN_SIGS	(sigmask(SIGKILL)|sigmask(SIGINT)|sigmask(SIGTERM))

// Command timeouts
#define FOREVER			(0)
#define TMOUT_INQUIRY 		(20)
#define TMOUT_FLUSH		(360/45)
#define TMOUT_ABORT		(30)
#define TMOUT_SCSI		(300)
#define TMOUT_IOPRESET		(360)
#define TMOUT_GETSTATUS		(15)
#define TMOUT_INITOUTBOUND	(15)
#define TMOUT_LCT		(360)


#define I2O_SCSI_DEVICE_DSC_MASK                0x00FF

#define I2O_DETAIL_STATUS_UNSUPPORTED_FUNCTION  0x000A

#define I2O_SCSI_DSC_MASK                   0xFF00
#define I2O_SCSI_DSC_SUCCESS                0x0000
#define I2O_SCSI_DSC_REQUEST_ABORTED        0x0200
#define I2O_SCSI_DSC_UNABLE_TO_ABORT        0x0300
#define I2O_SCSI_DSC_COMPLETE_WITH_ERROR    0x0400
#define I2O_SCSI_DSC_ADAPTER_BUSY           0x0500
#define I2O_SCSI_DSC_REQUEST_INVALID        0x0600
#define I2O_SCSI_DSC_PATH_INVALID           0x0700
#define I2O_SCSI_DSC_DEVICE_NOT_PRESENT     0x0800
#define I2O_SCSI_DSC_UNABLE_TO_TERMINATE    0x0900
#define I2O_SCSI_DSC_SELECTION_TIMEOUT      0x0A00
#define I2O_SCSI_DSC_COMMAND_TIMEOUT        0x0B00
#define I2O_SCSI_DSC_MR_MESSAGE_RECEIVED    0x0D00
#define I2O_SCSI_DSC_SCSI_BUS_RESET         0x0E00
#define I2O_SCSI_DSC_PARITY_ERROR_FAILURE   0x0F00
#define I2O_SCSI_DSC_AUTOSENSE_FAILED       0x1000
#define I2O_SCSI_DSC_NO_ADAPTER             0x1100
#define I2O_SCSI_DSC_DATA_OVERRUN           0x1200
#define I2O_SCSI_DSC_UNEXPECTED_BUS_FREE    0x1300
#define I2O_SCSI_DSC_SEQUENCE_FAILURE       0x1400
#define I2O_SCSI_DSC_REQUEST_LENGTH_ERROR   0x1500
#define I2O_SCSI_DSC_PROVIDE_FAILURE        0x1600
#define I2O_SCSI_DSC_BDR_MESSAGE_SENT       0x1700
#define I2O_SCSI_DSC_REQUEST_TERMINATED     0x1800
#define I2O_SCSI_DSC_IDE_MESSAGE_SENT       0x3300
#define I2O_SCSI_DSC_RESOURCE_UNAVAILABLE   0x3400
#define I2O_SCSI_DSC_UNACKNOWLEDGED_EVENT   0x3500
#define I2O_SCSI_DSC_MESSAGE_RECEIVED       0x3600
#define I2O_SCSI_DSC_INVALID_CDB            0x3700
#define I2O_SCSI_DSC_LUN_INVALID            0x3800
#define I2O_SCSI_DSC_SCSI_TID_INVALID       0x3900
#define I2O_SCSI_DSC_FUNCTION_UNAVAILABLE   0x3A00
#define I2O_SCSI_DSC_NO_NEXUS               0x3B00
#define I2O_SCSI_DSC_SCSI_IID_INVALID       0x3C00
#define I2O_SCSI_DSC_CDB_RECEIVED           0x3D00
#define I2O_SCSI_DSC_LUN_ALREADY_ENABLED    0x3E00
#define I2O_SCSI_DSC_BUS_BUSY               0x3F00
#define I2O_SCSI_DSC_QUEUE_FROZEN           0x4000


#ifndef TRUE
#define TRUE                  1
#define FALSE                 0
#endif

#define HBA_FLAGS_INSTALLED_B       0x00000001	// Adapter Was Installed
#define HBA_FLAGS_BLINKLED_B        0x00000002	// Adapter In Blink LED State
#define HBA_FLAGS_IN_RESET	0x00000040	/* in reset */
#define HBA_HOSTRESET_FAILED	0x00000080	/* adpt_resethost failed */


// Device state flags
#define DPTI_DEV_ONLINE    0x00
#define DPTI_DEV_UNSCANNED 0x01
#define DPTI_DEV_RESET	   0x02
#define DPTI_DEV_OFFLINE   0x04


struct adpt_device {
	struct adpt_device* next_lun;
	u32	flags;
	u32	type;
	u32	capacity;
	u32	block_size;
	u8	scsi_channel;
	u8	scsi_id;
	u64	scsi_lun;
	u8	state;
	u16	tid;
	struct i2o_device* pI2o_dev;
	struct scsi_device *pScsi_dev;
};

struct adpt_channel {
	struct adpt_device* device[MAX_ID];	/* used as an array of 128 scsi ids */
	u8	scsi_id;
	u8	type;
	u16	tid;
	u32	state;
	struct i2o_device* pI2o_dev;
};

// HBA state flags
#define DPTI_STATE_RESET	(0x01)

typedef struct _adpt_hba {
	struct _adpt_hba *next;
	struct pci_dev *pDev;
	struct Scsi_Host *host;
	u32 state;
	spinlock_t state_lock;
	int unit;
	int host_no;		/* SCSI host number */
	u8 initialized;
	u8 in_use;		/* is the management node open*/

	char name[32];
	char detail[55];

	void __iomem *base_addr_virt;
	void __iomem *msg_addr_virt;
	ulong base_addr_phys;
	void __iomem *post_port;
	void __iomem *reply_port;
	void __iomem *irq_mask;
	u16  post_count;
	u32  post_fifo_size;
	u32  reply_fifo_size;
	u32* reply_pool;
	dma_addr_t reply_pool_pa;
	u32  sg_tablesize;	// Scatter/Gather List Size.       
	u8  top_scsi_channel;
	u8  top_scsi_id;
	u64  top_scsi_lun;
	u8  dma64;

	i2o_status_block* status_block;
	dma_addr_t status_block_pa;
	i2o_hrt* hrt;
	dma_addr_t hrt_pa;
	i2o_lct* lct;
	dma_addr_t lct_pa;
	uint lct_size;
	struct i2o_device* devices;
	struct adpt_channel channel[MAX_CHANNEL];
	struct proc_dir_entry* proc_entry;	/* /proc dir */

	void __iomem *FwDebugBuffer_P;	// Virtual Address Of FW Debug Buffer
	u32   FwDebugBufferSize;	// FW Debug Buffer Size In Bytes
	void __iomem *FwDebugStrLength_P;// Virtual Addr Of FW Debug String Len
	void __iomem *FwDebugFlags_P;	// Virtual Address Of FW Debug Flags 
	void __iomem *FwDebugBLEDflag_P;// Virtual Addr Of FW Debug BLED
	void __iomem *FwDebugBLEDvalue_P;// Virtual Addr Of FW Debug BLED
	u32 FwDebugFlags;
	u32 *ioctl_reply_context[4];
} adpt_hba;

struct sg_simple_element {
   u32  flag_count;
   u32 addr_bus;
}; 

/*
 * Function Prototypes
 */

static void adpt_i2o_sys_shutdown(void);
static int adpt_init(void);
static int adpt_i2o_build_sys_table(void);
static irqreturn_t adpt_isr(int irq, void *dev_id);

static void adpt_i2o_report_hba_unit(adpt_hba* pHba, struct i2o_device *d);
static int adpt_i2o_query_scalar(adpt_hba* pHba, int tid, 
			int group, int field, void *buf, int buflen);
#ifdef DEBUG
static const char *adpt_i2o_get_class_name(int class);
#endif
static int adpt_i2o_issue_params(int cmd, adpt_hba* pHba, int tid, 
		  void *opblk, dma_addr_t opblk_pa, int oplen,
		  void *resblk, dma_addr_t resblk_pa, int reslen);
static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout);
static int adpt_i2o_lct_get(adpt_hba* pHba);
static int adpt_i2o_parse_lct(adpt_hba* pHba);
static int adpt_i2o_activate_hba(adpt_hba* pHba);
static int adpt_i2o_enable_hba(adpt_hba* pHba);
static int adpt_i2o_install_device(adpt_hba* pHba, struct i2o_device *d);
static s32 adpt_i2o_post_this(adpt_hba* pHba, u32* data, int len);
static s32 adpt_i2o_quiesce_hba(adpt_hba* pHba);
static s32 adpt_i2o_status_get(adpt_hba* pHba);
static s32 adpt_i2o_init_outbound_q(adpt_hba* pHba);
static s32 adpt_i2o_hrt_get(adpt_hba* pHba);
static s32 adpt_scsi_to_i2o(adpt_hba* pHba, struct scsi_cmnd* cmd, struct adpt_device* dptdevice);
static void adpt_i2o_scsi_complete(void __iomem *reply, struct scsi_cmnd *cmd);
static s32 adpt_scsi_host_alloc(adpt_hba* pHba,struct scsi_host_template * sht);
static s32 adpt_hba_reset(adpt_hba* pHba);
static s32 adpt_i2o_reset_hba(adpt_hba* pHba);
static s32 adpt_rescan(adpt_hba* pHba);
static s32 adpt_i2o_reparse_lct(adpt_hba* pHba);
static s32 adpt_send_nop(adpt_hba*pHba,u32 m);
static void adpt_i2o_delete_hba(adpt_hba* pHba);
static void adpt_inquiry(adpt_hba* pHba);
static struct adpt_device* adpt_find_device(adpt_hba* pHba, u32 chan, u32 id, u64 lun);
static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev) ;
static int adpt_i2o_online_hba(adpt_hba* pHba);
static void adpt_i2o_post_wait_complete(u32, int);
static int adpt_i2o_systab_send(adpt_hba* pHba);

static int adpt_ioctl(struct inode *inode, struct file *file, uint cmd, ulong arg);
static int adpt_open(struct inode *inode, struct file *file);
static int adpt_close(struct inode *inode, struct file *file);


#ifdef UARTDELAY
static void adpt_delay(int millisec);
#endif

#define PRINT_BUFFER_SIZE     512

#define HBA_FLAGS_DBG_FLAGS_MASK         0xffff0000	// Mask for debug flags
#define HBA_FLAGS_DBG_KERNEL_PRINT_B     0x00010000	// Kernel Debugger Print
#define HBA_FLAGS_DBG_FW_PRINT_B         0x00020000	// Firmware Debugger Print
#define HBA_FLAGS_DBG_FUNCTION_ENTRY_B   0x00040000	// Function Entry Point
#define HBA_FLAGS_DBG_FUNCTION_EXIT_B    0x00080000	// Function Exit
#define HBA_FLAGS_DBG_ERROR_B            0x00100000	// Error Conditions
#define HBA_FLAGS_DBG_INIT_B             0x00200000	// Init Prints
#define HBA_FLAGS_DBG_OS_COMMANDS_B      0x00400000	// OS Command Info
#define HBA_FLAGS_DBG_SCAN_B             0x00800000	// Device Scan

#define FW_DEBUG_STR_LENGTH_OFFSET 0
#define FW_DEBUG_FLAGS_OFFSET      4
#define FW_DEBUG_BLED_OFFSET       8

#define FW_DEBUG_FLAGS_NO_HEADERS_B    0x01
#endif				/* !HOSTS_C */
#endif				/* _DPT_H */

Fixed code:
'D'   40-5F  drivers/scsi/dpt/dtpi_ioctl.h                           Dead since 2022