Merge bk://linux-scsi.bkbits.net/scsi-for-linus-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

37 files changed, 1730 insertions, 1113 deletions

diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index c83abfa20641..6662b545e0a9 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -2,7 +2,8 @@
 
 obj-y			:= core.o sys.o interface.o bus.o \
 			   driver.o class.o class_simple.o platform.o \
-			   cpu.o firmware.o init.o map.o dmapool.o
+			   cpu.o firmware.o init.o map.o dmapool.o \
+			   attribute_container.o transport_class.o
 obj-y			+= power/
 obj-$(CONFIG_FW_LOADER)	+= firmware_class.o
 obj-$(CONFIG_NUMA)	+= node.o
diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
new file mode 100644
index 000000000000..be38fdf271ce
--- /dev/null
+++ b/drivers/base/attribute_container.c
@@ -0,0 +1,274 @@
+/*
+ * attribute_container.c - implementation of a simple container for classes
+ *
+ * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
+ *
+ * This file is licensed under GPLv2
+ *
+ * The basic idea here is to enable a device to be attached to an
+ * aritrary numer of classes without having to allocate storage for them.
+ * Instead, the contained classes select the devices they need to attach
+ * to via a matching function.
+ */
+
+#include <linux/attribute_container.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/list.h>
+#include <linux/module.h>
+
+/* This is a private structure used to tie the classdev and the
+ * container .. it should never be visible outside this file */
+struct internal_container {
+	struct list_head node;
+	struct attribute_container *cont;
+	struct class_device classdev;
+};
+
+/**
+ * attribute_container_classdev_to_container - given a classdev, return the container
+ *
+ * @classdev: the class device created by attribute_container_add_device.
+ *
+ * Returns the container associated with this classdev.
+ */
+struct attribute_container *
+attribute_container_classdev_to_container(struct class_device *classdev)
+{
+	struct internal_container *ic =
+		container_of(classdev, struct internal_container, classdev);
+	return ic->cont;
+}
+EXPORT_SYMBOL_GPL(attribute_container_classdev_to_container);
+
+static struct list_head attribute_container_list;
+
+static DECLARE_MUTEX(attribute_container_mutex);
+
+/**
+ * attribute_container_register - register an attribute container
+ *
+ * @cont: The container to register.  This must be allocated by the
+ *        callee and should also be zeroed by it.
+ */
+int
+attribute_container_register(struct attribute_container *cont)
+{
+	INIT_LIST_HEAD(&cont->node);
+	INIT_LIST_HEAD(&cont->containers);
+		
+	down(&attribute_container_mutex);
+	list_add_tail(&cont->node, &attribute_container_list);
+	up(&attribute_container_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(attribute_container_register);
+
+/**
+ * attribute_container_unregister - remove a container registration
+ *
+ * @cont: previously registered container to remove
+ */
+int
+attribute_container_unregister(struct attribute_container *cont)
+{
+	int retval = -EBUSY;
+	down(&attribute_container_mutex);
+	if (!list_empty(&cont->containers))
+		goto out;
+	retval = 0;
+	list_del(&cont->node);
+ out:
+	up(&attribute_container_mutex);
+	return retval;
+		
+}
+EXPORT_SYMBOL_GPL(attribute_container_unregister);
+
+/* private function used as class release */
+static void attribute_container_release(struct class_device *classdev)
+{
+	struct internal_container *ic 
+		= container_of(classdev, struct internal_container, classdev);
+	struct device *dev = classdev->dev;
+
+	kfree(ic);
+	put_device(dev);
+}
+
+/**
+ * attribute_container_add_device - see if any container is interested in dev
+ *
+ * @dev: device to add attributes to
+ * @fn:	 function to trigger addition of class device.
+ *
+ * This function allocates storage for the class device(s) to be
+ * attached to dev (one for each matching attribute_container).  If no
+ * fn is provided, the code will simply register the class device via
+ * class_device_add.  If a function is provided, it is expected to add
+ * the class device at the appropriate time.  One of the things that
+ * might be necessary is to allocate and initialise the classdev and
+ * then add it a later time.  To do this, call this routine for
+ * allocation and initialisation and then use
+ * attribute_container_device_trigger() to call class_device_add() on
+ * it.  Note: after this, the class device contains a reference to dev
+ * which is not relinquished until the release of the classdev.
+ */
+void
+attribute_container_add_device(struct device *dev,
+			       int (*fn)(struct attribute_container *,
+					 struct device *,
+					 struct class_device *))
+{
+	struct attribute_container *cont;
+
+	down(&attribute_container_mutex);
+	list_for_each_entry(cont, &attribute_container_list, node) {
+		struct internal_container *ic;
+
+		if (attribute_container_no_classdevs(cont))
+			continue;
+
+		if (!cont->match(cont, dev))
+			continue;
+		ic = kmalloc(sizeof(struct internal_container), GFP_KERNEL);
+		if (!ic) {
+			dev_printk(KERN_ERR, dev, "failed to allocate class container\n");
+			continue;
+		}
+		memset(ic, 0, sizeof(struct internal_container));
+		INIT_LIST_HEAD(&ic->node);
+		ic->cont = cont;
+		class_device_initialize(&ic->classdev);
+		ic->classdev.dev = get_device(dev);
+		ic->classdev.class = cont->class;
+		cont->class->release = attribute_container_release;
+		strcpy(ic->classdev.class_id, dev->bus_id);
+		if (fn)
+			fn(cont, dev, &ic->classdev);
+		else
+			class_device_add(&ic->classdev);
+		list_add_tail(&ic->node, &cont->containers);
+	}
+	up(&attribute_container_mutex);
+}
+
+/**
+ * attribute_container_remove_device - make device eligible for removal.
+ *
+ * @dev:  The generic device
+ * @fn:	  A function to call to remove the device
+ *
+ * This routine triggers device removal.  If fn is NULL, then it is
+ * simply done via class_device_unregister (note that if something
+ * still has a reference to the classdev, then the memory occupied
+ * will not be freed until the classdev is released).  If you want a
+ * two phase release: remove from visibility and then delete the
+ * device, then you should use this routine with a fn that calls
+ * class_device_del() and then use
+ * attribute_container_device_trigger() to do the final put on the
+ * classdev.
+ */
+void
+attribute_container_remove_device(struct device *dev,
+				  void (*fn)(struct attribute_container *,
+					     struct device *,
+					     struct class_device *))
+{
+	struct attribute_container *cont;
+
+	down(&attribute_container_mutex);
+	list_for_each_entry(cont, &attribute_container_list, node) {
+		struct internal_container *ic, *tmp;
+
+		if (attribute_container_no_classdevs(cont))
+			continue;
+
+		if (!cont->match(cont, dev))
+			continue;
+		list_for_each_entry_safe(ic, tmp, &cont->containers, node) {
+			if (dev != ic->classdev.dev)
+				continue;
+			list_del(&ic->node);
+			if (fn)
+				fn(cont, dev, &ic->classdev);
+			else
+				class_device_unregister(&ic->classdev);
+		}
+	}
+	up(&attribute_container_mutex);
+}
+EXPORT_SYMBOL_GPL(attribute_container_remove_device);
+
+/**
+ * attribute_container_device_trigger - execute a trigger for each matching classdev
+ *
+ * @dev:  The generic device to run the trigger for
+ * @fn	  the function to execute for each classdev.
+ *
+ * This funcion is for executing a trigger when you need to know both
+ * the container and the classdev.  If you only care about the
+ * container, then use attribute_container_trigger() instead.
+ */
+void
+attribute_container_device_trigger(struct device *dev, 
+				   int (*fn)(struct attribute_container *,
+					     struct device *,
+					     struct class_device *))
+{
+	struct attribute_container *cont;
+
+	down(&attribute_container_mutex);
+	list_for_each_entry(cont, &attribute_container_list, node) {
+		struct internal_container *ic, *tmp;
+
+		if (!cont->match(cont, dev))
+			continue;
+
+		list_for_each_entry_safe(ic, tmp, &cont->containers, node) {
+			if (dev == ic->classdev.dev)
+				fn(cont, dev, &ic->classdev);
+		}
+	}
+	up(&attribute_container_mutex);
+}
+EXPORT_SYMBOL_GPL(attribute_container_device_trigger);
+
+/**
+ * attribute_container_trigger - trigger a function for each matching container
+ *
+ * @dev:  The generic device to activate the trigger for
+ * @fn:	  the function to trigger
+ *
+ * This routine triggers a function that only needs to know the
+ * matching containers (not the classdev) associated with a device.
+ * It is more lightweight than attribute_container_device_trigger, so
+ * should be used in preference unless the triggering function
+ * actually needs to know the classdev.
+ */
+void
+attribute_container_trigger(struct device *dev,
+			    int (*fn)(struct attribute_container *,
+				      struct device *))
+{
+	struct attribute_container *cont;
+
+	down(&attribute_container_mutex);
+	list_for_each_entry(cont, &attribute_container_list, node) {
+		if (cont->match(cont, dev))
+			fn(cont, dev);
+	}
+	up(&attribute_container_mutex);
+}
+EXPORT_SYMBOL_GPL(attribute_container_trigger);
+     
+
+int __init
+attribute_container_init(void)
+{
+	INIT_LIST_HEAD(&attribute_container_list);
+	return 0;
+}
diff --git a/drivers/base/init.c b/drivers/base/init.c
index 7b86c409c648..a76ae5a221f3 100644
--- a/drivers/base/init.c
+++ b/drivers/base/init.c
@@ -17,7 +17,7 @@ extern int firmware_init(void);
 extern int platform_bus_init(void);
 extern int system_bus_init(void);
 extern int cpu_dev_init(void);
-
+extern int attribute_container_init(void);
 /**
  *	driver_init - initialize driver model.
  *
@@ -39,4 +39,5 @@ void __init driver_init(void)
 	platform_bus_init();
 	system_bus_init();
 	cpu_dev_init();
+	attribute_container_init();
 }
diff --git a/drivers/base/transport_class.c b/drivers/base/transport_class.c
new file mode 100644
index 000000000000..6fa146a42bca
--- /dev/null
+++ b/drivers/base/transport_class.c
@@ -0,0 +1,272 @@
+/*
+ * transport_class.c - implementation of generic transport classes
+ *                     using attribute_containers
+ *
+ * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
+ *
+ * This file is licensed under GPLv2
+ *
+ * The basic idea here is to allow any "device controller" (which
+ * would most often be a Host Bus Adapter" to use the services of one
+ * or more tranport classes for performing transport specific
+ * services.  Transport specific services are things that the generic
+ * command layer doesn't want to know about (speed settings, line
+ * condidtioning, etc), but which the user might be interested in.
+ * Thus, the HBA's use the routines exported by the transport classes
+ * to perform these functions.  The transport classes export certain
+ * values to the user via sysfs using attribute containers.
+ *
+ * Note: because not every HBA will care about every transport
+ * attribute, there's a many to one relationship that goes like this:
+ *
+ * transport class<-----attribute container<----class device
+ *
+ * Usually the attribute container is per-HBA, but the design doesn't
+ * mandate that.  Although most of the services will be specific to
+ * the actual external storage connection used by the HBA, the generic
+ * transport class is framed entirely in terms of generic devices to
+ * allow it to be used by any physical HBA in the system.
+ */
+#include <linux/attribute_container.h>
+#include <linux/transport_class.h>
+
+/**
+ * transport_class_register - register an initial transport class
+ *
+ * @tclass:	a pointer to the transport class structure to be initialised
+ *
+ * The transport class contains an embedded class which is used to
+ * identify it.  The caller should initialise this structure with
+ * zeros and then generic class must have been initialised with the
+ * actual transport class unique name.  There's a macro
+ * DECLARE_TRANSPORT_CLASS() to do this (declared classes still must
+ * be registered).
+ *
+ * Returns 0 on success or error on failure.
+ */
+int transport_class_register(struct transport_class *tclass)
+{
+	return class_register(&tclass->class);
+}
+EXPORT_SYMBOL_GPL(transport_class_register);
+
+/**
+ * transport_class_unregister - unregister a previously registered class
+ *
+ * @tclass: The transport class to unregister
+ *
+ * Must be called prior to deallocating the memory for the transport
+ * class.
+ */
+void transport_class_unregister(struct transport_class *tclass)
+{
+	class_unregister(&tclass->class);
+}
+EXPORT_SYMBOL_GPL(transport_class_unregister);
+
+static int anon_transport_dummy_function(struct device *dev)
+{
+	/* do nothing */
+	return 0;
+}
+
+/**
+ * anon_transport_class_register - register an anonymous class
+ *
+ * @atc: The anon transport class to register
+ *
+ * The anonymous transport class contains both a transport class and a
+ * container.  The idea of an anonymous class is that it never
+ * actually has any device attributes associated with it (and thus
+ * saves on container storage).  So it can only be used for triggering
+ * events.  Use prezero and then use DECLARE_ANON_TRANSPORT_CLASS() to
+ * initialise the anon transport class storage.
+ */
+int anon_transport_class_register(struct anon_transport_class *atc)
+{
+	int error;
+	atc->container.class = &atc->tclass.class;
+	attribute_container_set_no_classdevs(&atc->container);
+	error = attribute_container_register(&atc->container);
+	if (error)
+		return error;
+	atc->tclass.setup = anon_transport_dummy_function;
+	atc->tclass.remove = anon_transport_dummy_function;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(anon_transport_class_register);
+
+/**
+ * anon_transport_class_unregister - unregister an anon class
+ *
+ * @atc: Pointer to the anon transport class to unregister
+ *
+ * Must be called prior to deallocating the memory for the anon
+ * transport class.
+ */
+void anon_transport_class_unregister(struct anon_transport_class *atc)
+{
+	attribute_container_unregister(&atc->container);
+}
+EXPORT_SYMBOL_GPL(anon_transport_class_unregister);
+
+static int transport_setup_classdev(struct attribute_container *cont,
+				    struct device *dev,
+				    struct class_device *classdev)
+{
+	struct transport_class *tclass = class_to_transport_class(cont->class);
+
+	if (tclass->setup)
+		tclass->setup(dev);
+
+	return 0;
+}
+
+/**
+ * transport_setup_device - declare a new dev for transport class association
+ *			    but don't make it visible yet.
+ *
+ * @dev: the generic device representing the entity being added
+ *
+ * Usually, dev represents some component in the HBA system (either
+ * the HBA itself or a device remote across the HBA bus).  This
+ * routine is simply a trigger point to see if any set of transport
+ * classes wishes to associate with the added device.  This allocates
+ * storage for the class device and initialises it, but does not yet
+ * add it to the system or add attributes to it (you do this with
+ * transport_add_device).  If you have no need for a separate setup
+ * and add operations, use transport_register_device (see
+ * transport_class.h).
+ */
+
+void transport_setup_device(struct device *dev)
+{
+	attribute_container_add_device(dev, transport_setup_classdev);
+}
+EXPORT_SYMBOL_GPL(transport_setup_device);
+
+
+static int transport_add_classdev(struct attribute_container *cont,
+				  struct device *dev,
+				  struct class_device *classdev)
+{
+	struct class_device_attribute **attrs =	cont->attrs;
+	int i, error;
+
+	error = class_device_add(classdev);
+	if (error)
+		return error;
+	for (i = 0; attrs[i]; i++) {
+		error = class_device_create_file(classdev, attrs[i]);
+		if (error)
+			return error;
+	}
+
+	return 0;
+}
+
+/**
+ * transport_add_device - declare a new dev for transport class association
+ *
+ * @dev: the generic device representing the entity being added
+ *
+ * Usually, dev represents some component in the HBA system (either
+ * the HBA itself or a device remote across the HBA bus).  This
+ * routine is simply a trigger point used to add the device to the
+ * system and register attributes for it.
+ */
+
+void transport_add_device(struct device *dev)
+{
+	attribute_container_device_trigger(dev, transport_add_classdev);
+}
+EXPORT_SYMBOL_GPL(transport_add_device);
+
+static int transport_configure(struct attribute_container *cont,
+			       struct device *dev)
+{
+	struct transport_class *tclass = class_to_transport_class(cont->class);
+
+	if (tclass->configure)
+		tclass->configure(dev);
+
+	return 0;
+}
+
+/**
+ * transport_configure_device - configure an already set up device
+ *
+ * @dev: generic device representing device to be configured
+ *
+ * The idea of configure is simply to provide a point within the setup
+ * process to allow the transport class to extract information from a
+ * device after it has been setup.  This is used in SCSI because we
+ * have to have a setup device to begin using the HBA, but after we
+ * send the initial inquiry, we use configure to extract the device
+ * parameters.  The device need not have been added to be configured.
+ */
+void transport_configure_device(struct device *dev)
+{
+	attribute_container_trigger(dev, transport_configure);
+}
+EXPORT_SYMBOL_GPL(transport_configure_device);
+
+static int transport_remove_classdev(struct attribute_container *cont,
+				     struct device *dev,
+				     struct class_device *classdev)
+{
+	struct transport_class *tclass = class_to_transport_class(cont->class);
+
+	if (tclass->remove)
+		tclass->remove(dev);
+
+	return 0;
+}
+
+
+/**
+ * transport_remove_device - remove the visibility of a device
+ *
+ * @dev: generic device to remove
+ *
+ * This call removes the visibility of the device (to the user from
+ * sysfs), but does not destroy it.  To eliminate a device entirely
+ * you must also call transport_destroy_device.  If you don't need to
+ * do remove and destroy as separate operations, use
+ * transport_unregister_device() (see transport_class.h) which will
+ * perform both calls for you.
+ */
+void transport_remove_device(struct device *dev)
+{
+	attribute_container_device_trigger(dev, transport_remove_classdev);
+}
+EXPORT_SYMBOL_GPL(transport_remove_device);
+
+static void transport_destroy_classdev(struct attribute_container *cont,
+				      struct device *dev,
+				      struct class_device *classdev)
+{
+	struct transport_class *tclass = class_to_transport_class(cont->class);
+
+	if (tclass->remove != anon_transport_dummy_function)
+		class_device_put(classdev);
+}
+
+
+/**
+ * transport_destroy_device - destroy a removed device
+ *
+ * @dev: device to eliminate from the transport class.
+ *
+ * This call triggers the elimination of storage associated with the
+ * transport classdev.  Note: all it really does is relinquish a
+ * reference to the classdev.  The memory will not be freed until the
+ * last reference goes to zero.  Note also that the classdev retains a
+ * reference count on dev, so dev too will remain for as long as the
+ * transport class device remains around.
+ */
+void transport_destroy_device(struct device *dev)
+{
+	attribute_container_remove_device(dev, transport_destroy_classdev);
+}
+EXPORT_SYMBOL_GPL(transport_destroy_device);
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 8dcc3b19aff5..2d492fe4de15 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -225,14 +225,14 @@ config SGIWD93_SCSI
 
 config SCSI_DECNCR
 	tristate "DEC NCR53C94 Scsi Driver"
-	depends on DECSTATION && TC && SCSI
+	depends on MACH_DECSTATION && SCSI && TC
 	help
 	  Say Y here to support the NCR53C94 SCSI controller chips on IOASIC
 	  based TURBOchannel DECstations and TURBOchannel PMAZ-A cards.
 
 config SCSI_DECSII
 	tristate "DEC SII Scsi Driver"
-	depends on DECSTATION && SCSI
+	depends on MACH_DECSTATION && SCSI && MIPS32
 
 config BLK_DEV_3W_XXXX_RAID
 	tristate "3ware 5/6/7/8xxx ATA-RAID support"
diff --git a/drivers/scsi/NCR53C9x.c b/drivers/scsi/NCR53C9x.c
index be42bee20acb..3c86655a5f33 100644
--- a/drivers/scsi/NCR53C9x.c
+++ b/drivers/scsi/NCR53C9x.c
@@ -290,7 +290,7 @@ static inline void esp_advance_phase(Scsi_Cmnd *s, int newphase)
 #endif
 
 #ifdef DEBUG_ESP_CMDS
-inline void esp_cmd(struct NCR_ESP *esp, struct ESP_regs *eregs,
+static inline void esp_cmd(struct NCR_ESP *esp, struct ESP_regs *eregs,
 			   unchar cmd)
 {
 	esp->espcmdlog[esp->espcmdent] = cmd;
@@ -505,7 +505,7 @@ static void esp_reset_esp(struct NCR_ESP *esp, struct ESP_regs *eregs)
 }
 
 /* This places the ESP into a known state at boot time. */
-static void esp_bootup_reset(struct NCR_ESP *esp, struct ESP_regs *eregs)
+void esp_bootup_reset(struct NCR_ESP *esp, struct ESP_regs *eregs)
 {
 	volatile unchar trash;
 
diff --git a/drivers/scsi/NCR53C9x.h b/drivers/scsi/NCR53C9x.h
index d6fc4f09a574..06e7edf23326 100644
--- a/drivers/scsi/NCR53C9x.h
+++ b/drivers/scsi/NCR53C9x.h
@@ -652,7 +652,7 @@ extern int nesps, esps_in_use, esps_running;
 
 
 /* External functions */
-extern void esp_cmd(struct NCR_ESP *esp, struct ESP_regs *eregs, unchar cmd);
+extern void esp_bootup_reset(struct NCR_ESP *esp, struct ESP_regs *eregs);
 extern struct NCR_ESP *esp_allocate(Scsi_Host_Template *, void *);
 extern void esp_deallocate(struct NCR_ESP *);
 extern void esp_release(void);
diff --git a/drivers/scsi/NCR_Q720.c b/drivers/scsi/NCR_Q720.c
index 365d70f42917..6237de419ba9 100644
--- a/drivers/scsi/NCR_Q720.c
+++ b/drivers/scsi/NCR_Q720.c
@@ -48,7 +48,7 @@ struct NCR_Q720_private {
 	struct Scsi_Host	*hosts[4];
 };
 
-struct scsi_host_template NCR_Q720_tpnt = {
+static struct scsi_host_template NCR_Q720_tpnt = {
 	.module			= THIS_MODULE,
 	.proc_name		= "NCR_Q720",
 };
@@ -345,7 +345,7 @@ NCR_Q720_remove(struct device *dev)
 
 static short NCR_Q720_id_table[] = { NCR_Q720_MCA_ID, 0 };
 
-struct mca_driver NCR_Q720_driver = {
+static struct mca_driver NCR_Q720_driver = {
 	.id_table = NCR_Q720_id_table,
 	.driver = {
 		.name		= "NCR_Q720",
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 514caa9adc2c..782776243b96 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1029,6 +1029,114 @@ static int aac_write(struct scsi_cmnd * scsicmd, int cid)
 	return 0;
 }
 
+static void synchronize_callback(void *context, struct fib *fibptr)
+{
+	struct aac_synchronize_reply *synchronizereply;
+	struct scsi_cmnd *cmd;
+
+	cmd = context;
+
+	dprintk((KERN_DEBUG "synchronize_callback[cpu %d]: t = %ld.\n", 
+				smp_processor_id(), jiffies));
+	BUG_ON(fibptr == NULL);
+
+
+	synchronizereply = fib_data(fibptr);
+	if (le32_to_cpu(synchronizereply->status) == CT_OK)
+		cmd->result = DID_OK << 16 | 
+			COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+	else {
+		struct scsi_device *sdev = cmd->device;
+		struct aac_dev *dev = (struct aav_dev *)sdev->host->hostdata;
+		u32 cid = ID_LUN_TO_CONTAINER(sdev->id, sdev->lun);
+		printk(KERN_WARNING 
+		     "synchronize_callback: synchronize failed, status = %d\n",
+		     synchronizereply->status);
+		cmd->result = DID_OK << 16 | 
+			COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
+		set_sense((u8 *)&dev->fsa_dev[cid].sense_data,
+				    HARDWARE_ERROR,
+				    SENCODE_INTERNAL_TARGET_FAILURE,
+				    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
+				    0, 0);
+		memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
+		  min(sizeof(dev->fsa_dev[cid].sense_data), 
+			  sizeof(cmd->sense_buffer)));
+	}
+
+	fib_complete(fibptr);
+	fib_free(fibptr);
+	aac_io_done(cmd);
+}
+
+static int aac_synchronize(struct scsi_cmnd *scsicmd, int cid)
+{
+	int status;
+	struct fib *cmd_fibcontext;
+	struct aac_synchronize *synchronizecmd;
+	struct scsi_cmnd *cmd;
+	struct scsi_device *sdev = scsicmd->device;
+	int active = 0;
+	unsigned long flags;
+
+	/*
+	 * Wait for all commands to complete to this specific
+	 * target (block).
+	 */
+	spin_lock_irqsave(&sdev->list_lock, flags);
+	list_for_each_entry(cmd, &sdev->cmd_list, list)
+		if (cmd != scsicmd && cmd->serial_number != 0) {
+			++active;
+			break;
+		}
+
+	spin_unlock_irqrestore(&sdev->list_lock, flags);
+
+	/*
+	 *	Yield the processor (requeue for later)
+	 */
+	if (active)
+		return SCSI_MLQUEUE_DEVICE_BUSY;
+
+	/*
+	 *	Alocate and initialize a Fib
+	 */
+	if (!(cmd_fibcontext = 
+	    fib_alloc((struct aac_dev *)scsicmd->device->host->hostdata))) 
+		return SCSI_MLQUEUE_HOST_BUSY;
+
+	fib_init(cmd_fibcontext);
+
+	synchronizecmd = fib_data(cmd_fibcontext);
+	synchronizecmd->command = cpu_to_le32(VM_ContainerConfig);
+	synchronizecmd->type = cpu_to_le32(CT_FLUSH_CACHE);
+	synchronizecmd->cid = cpu_to_le32(cid);
+	synchronizecmd->count = 
+	     cpu_to_le32(sizeof(((struct aac_synchronize_reply *)NULL)->data));
+
+	/*
+	 *	Now send the Fib to the adapter
+	 */
+	status = fib_send(ContainerCommand,
+		  cmd_fibcontext,
+		  sizeof(struct aac_synchronize),
+		  FsaNormal,
+		  0, 1,
+		  (fib_callback)synchronize_callback,
+		  (void *)scsicmd);
+
+	/*
+	 *	Check that the command queued to the controller
+	 */
+	if (status == -EINPROGRESS)
+		return 0;
+
+	printk(KERN_WARNING 
+		"aac_synchronize: fib_send failed with status: %d.\n", status);
+	fib_complete(cmd_fibcontext);
+	fib_free(cmd_fibcontext);
+	return SCSI_MLQUEUE_HOST_BUSY;
+}
 
 /**
  *	aac_scsi_cmd()		-	Process SCSI command
@@ -1274,6 +1382,11 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			ret = aac_write(scsicmd, cid);
 			spin_lock_irq(host->host_lock);
 			return ret;
+
+		case SYNCHRONIZE_CACHE:
+			/* Issue FIB to tell Firmware to flush it's cache */
+			return aac_synchronize(scsicmd, cid);
+			
 		default:
 			/*
 			 *	Unhandled commands
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 987222ef30e1..7309129568b6 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -1069,6 +1069,30 @@ struct aac_write_reply
 	u32		committed;
 };
 
+#define CT_FLUSH_CACHE 129
+struct aac_synchronize {
+	u32		command;	/* VM_ContainerConfig */
+	u32		type;		/* CT_FLUSH_CACHE */
+	u32		cid;
+	u32		parm1;
+	u32		parm2;
+	u32		parm3;
+	u32		parm4;
+	u32		count;	/* sizeof(((struct aac_synchronize_reply *)NULL)->data) */
+};
+
+struct aac_synchronize_reply {
+	u32		dummy0;
+	u32		dummy1;
+	u32		status;	/* CT_OK */
+	u32		parm1;
+	u32		parm2;
+	u32		parm3;
+	u32		parm4;
+	u32		parm5;
+	u8		data[16];
+};
+
 struct aac_srb
 {
 	u32		function;
diff --git a/drivers/scsi/dec_esp.c b/drivers/scsi/dec_esp.c
index 247c7ca01128..315f95a0d6c0 100644
--- a/drivers/scsi/dec_esp.c
+++ b/drivers/scsi/dec_esp.c
@@ -17,6 +17,8 @@
  *            data.
  * 20001005	- Initialization fixes for 2.4.0-test9
  * 			  Florian Lohoff <flo@rfc822.org>
+ *
+ *	Copyright (C) 2002, 2003  Maciej W. Rozycki
  */
 
 #include <linux/kernel.h>
@@ -26,59 +28,52 @@
 #include <linux/slab.h>
 #include <linux/blkdev.h>
 #include <linux/proc_fs.h>
+#include <linux/spinlock.h>
 #include <linux/stat.h>
 
-#include "scsi.h"
-#include <scsi/scsi_host.h>
-#include "NCR53C9x.h"
-
-#include <asm/irq.h>
-#include <asm/jazz.h>
-#include <asm/jazzdma.h>
 #include <asm/dma.h>
-
+#include <asm/irq.h>
 #include <asm/pgtable.h>
+#include <asm/system.h>
 
-#include <asm/dec/tc.h>
 #include <asm/dec/interrupts.h>
+#include <asm/dec/ioasic.h>
 #include <asm/dec/ioasic_addrs.h>
 #include <asm/dec/ioasic_ints.h>
 #include <asm/dec/machtype.h>
+#include <asm/dec/tc.h>
 
 #define DEC_SCSI_SREG 0
 #define DEC_SCSI_DMAREG 0x40000
 #define DEC_SCSI_SRAM 0x80000
 #define DEC_SCSI_DIAG 0xC0000
 
-/*
- * Once upon a time the pmaz code used to be working but
- * it hasn't been maintained for quite some time.
- * It isn't working anymore but I'll leave here as a
- * starting point. #define this an be prepared for tons
- * of warnings and errors :)
- */
+#include "scsi.h"
+#include <scsi/scsi_host.h>
+#include "NCR53C9x.h"
+
 static int  dma_bytes_sent(struct NCR_ESP *esp, int fifo_count);
 static void dma_drain(struct NCR_ESP *esp);
-static int  dma_can_transfer(struct NCR_ESP *esp, Scsi_Cmnd * sp);
+static int  dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd *sp);
 static void dma_dump_state(struct NCR_ESP *esp);
-static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length);
-static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length);
+static void dma_init_read(struct NCR_ESP *esp, u32 vaddress, int length);
+static void dma_init_write(struct NCR_ESP *esp, u32 vaddress, int length);
 static void dma_ints_off(struct NCR_ESP *esp);
 static void dma_ints_on(struct NCR_ESP *esp);
 static int  dma_irq_p(struct NCR_ESP *esp);
 static int  dma_ports_p(struct NCR_ESP *esp);
-static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write);
-static void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd * sp);
-static void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd * sp);
-static void dma_advance_sg(Scsi_Cmnd * sp);
+static void dma_setup(struct NCR_ESP *esp, u32 addr, int count, int write);
+static void dma_mmu_get_scsi_one(struct NCR_ESP *esp, struct scsi_cmnd * sp);
+static void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, struct scsi_cmnd * sp);
+static void dma_advance_sg(struct scsi_cmnd * sp);
 
 static void pmaz_dma_drain(struct NCR_ESP *esp);
-static void pmaz_dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length);
-static void pmaz_dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length);
+static void pmaz_dma_init_read(struct NCR_ESP *esp, u32 vaddress, int length);
+static void pmaz_dma_init_write(struct NCR_ESP *esp, u32 vaddress, int length);
 static void pmaz_dma_ints_off(struct NCR_ESP *esp);
 static void pmaz_dma_ints_on(struct NCR_ESP *esp);
-static void pmaz_dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write);
-static void pmaz_dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd * sp);
+static void pmaz_dma_setup(struct NCR_ESP *esp, u32 addr, int count, int write);
+static void pmaz_dma_mmu_get_scsi_one(struct NCR_ESP *esp, struct scsi_cmnd * sp);
 
 #define TC_ESP_RAM_SIZE 0x20000
 #define ESP_TGT_DMA_SIZE ((TC_ESP_RAM_SIZE/7) & ~(sizeof(int)-1))
@@ -88,7 +83,7 @@ static void pmaz_dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd * sp);
 #define TC_ESP_DMAR_WRITE 0x80000000
 #define TC_ESP_DMA_ADDR(x) ((unsigned)(x) & TC_ESP_DMAR_MASK)
 
-__u32 esp_virt_buffer;
+u32 esp_virt_buffer;
 int scsi_current_length;
 
 volatile unsigned char cmd_buffer[16];
@@ -98,16 +93,11 @@ volatile unsigned char pmaz_cmd_buffer[16];
 				 * via PIO.
 				 */
 
-volatile unsigned long *scsi_dma_ptr;
-volatile unsigned long *scsi_next_ptr;
-volatile unsigned long *scsi_scr;
-volatile unsigned long *ioasic_ssr;
-volatile unsigned long *scsi_sdr0;
-volatile unsigned long *scsi_sdr1;
+static irqreturn_t scsi_dma_merr_int(int, void *, struct pt_regs *);
+static irqreturn_t scsi_dma_err_int(int, void *, struct pt_regs *);
+static irqreturn_t scsi_dma_int(int, void *, struct pt_regs *);
 
-static void scsi_dma_int(int, void *, struct pt_regs *);
-
-int dec_esp_detect(Scsi_Host_Template * tpnt);
+static int dec_esp_detect(struct scsi_host_template * tpnt);
 
 static int dec_esp_release(struct Scsi_Host *shost)
 {
@@ -119,9 +109,9 @@ static int dec_esp_release(struct Scsi_Host *shost)
 	return 0;
 }
 
-static Scsi_Host_Template driver_template = {
+static struct scsi_host_template driver_template = {
 	.proc_name		= "dec_esp",
-	.proc_info		= &esp_proc_info,
+	.proc_info		= esp_proc_info,
 	.name			= "NCR53C94",
 	.detect			= dec_esp_detect,
 	.slave_alloc		= esp_slave_alloc,
@@ -142,7 +132,7 @@ static Scsi_Host_Template driver_template = {
 #include "scsi_module.c"
 
 /***************************************************************** Detection */
-int dec_esp_detect(Scsi_Host_Template * tpnt)
+static int dec_esp_detect(Scsi_Host_Template * tpnt)
 {
 	struct NCR_ESP *esp;
 	struct ConfigDev *esp_dev;
@@ -152,17 +142,10 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 	if (IOASIC) {
 		esp_dev = 0;
 		esp = esp_allocate(tpnt, (void *) esp_dev);
-	
-		scsi_dma_ptr = (unsigned long *) (system_base + IOCTL + SCSI_DMA_P);
-		scsi_next_ptr = (unsigned long *) (system_base + IOCTL + SCSI_DMA_BP);
-		scsi_scr = (unsigned long *) (system_base + IOCTL + SCSI_SCR);
-		ioasic_ssr = (unsigned long *) (system_base + IOCTL + SSR);
-		scsi_sdr0 = (unsigned long *) (system_base + IOCTL + SCSI_SDR0);
-		scsi_sdr1 = (unsigned long *) (system_base + IOCTL + SCSI_SDR1);
 
 		/* Do command transfer with programmed I/O */
 		esp->do_pio_cmds = 1;
-	
+
 		/* Required functions */
 		esp->dma_bytes_sent = &dma_bytes_sent;
 		esp->dma_can_transfer = &dma_can_transfer;
@@ -185,7 +168,7 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 		esp->dma_reset = 0;
 		esp->dma_led_off = 0;
 		esp->dma_led_on = 0;
-		
+
 		/* virtual DMA functions */
 		esp->dma_mmu_get_scsi_one = &dma_mmu_get_scsi_one;
 		esp->dma_mmu_get_scsi_sgl = &dma_mmu_get_scsi_sgl;
@@ -197,38 +180,42 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 		/* SCSI chip speed */
 		esp->cfreq = 25000000;
 
-		/*
-		 * we don't give the address of DMA channel, but the number
-		 * of DMA channel, so we can use the jazz DMA functions
-		 *
-		 */
-		esp->dregs = JAZZ_SCSI_DMA;
-	
+		esp->dregs = 0;
+
 		/* ESP register base */
-		esp->eregs = (struct ESP_regs *) (system_base + SCSI);
-	
+		esp->eregs = (struct ESP_regs *) (system_base + IOASIC_SCSI);
+
 		/* Set the command buffer */
 		esp->esp_command = (volatile unsigned char *) cmd_buffer;
-	
+
 		/* get virtual dma address for command buffer */
-		esp->esp_command_dvma = (__u32) KSEG1ADDR((volatile unsigned char *) cmd_buffer);
-	
-		esp->irq = SCSI_INT;
+		esp->esp_command_dvma = virt_to_phys(cmd_buffer);
+
+		esp->irq = dec_interrupt[DEC_IRQ_ASC];
 
 		esp->scsi_id = 7;
-		
+
 		/* Check for differential SCSI-bus */
 		esp->diff = 0;
 
 		esp_initialize(esp);
 
-		if (request_irq(esp->irq, esp_intr, SA_INTERRUPT, 
-				"NCR 53C94 SCSI", esp->ehost))
+		if (request_irq(esp->irq, esp_intr, SA_INTERRUPT,
+				"ncr53c94", esp->ehost))
 			goto err_dealloc;
-		if (request_irq(SCSI_DMA_INT, scsi_dma_int, SA_INTERRUPT, 
-				"JUNKIO SCSI DMA", esp->ehost))
+		if (request_irq(dec_interrupt[DEC_IRQ_ASC_MERR],
+				scsi_dma_merr_int, SA_INTERRUPT,
+				"ncr53c94 error", esp->ehost))
 			goto err_free_irq;
- 			
+		if (request_irq(dec_interrupt[DEC_IRQ_ASC_ERR],
+				scsi_dma_err_int, SA_INTERRUPT,
+				"ncr53c94 overrun", esp->ehost))
+			goto err_free_irq_merr;
+		if (request_irq(dec_interrupt[DEC_IRQ_ASC_DMA],
+				scsi_dma_int, SA_INTERRUPT,
+				"ncr53c94 dma", esp->ehost))
+			goto err_free_irq_err;
+
 	}
 
 	if (TURBOCHANNEL) {
@@ -241,7 +228,7 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 			mem_start = get_tc_base_addr(slot);
 
 			/* Store base addr into esp struct */
-			esp->slot = mem_start;
+			esp->slot = PHYSADDR(mem_start);
 
 			esp->dregs = 0;
 			esp->eregs = (struct ESP_regs *) (mem_start + DEC_SCSI_SREG);
@@ -251,7 +238,7 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 			esp->esp_command = (volatile unsigned char *) pmaz_cmd_buffer;
 
 			/* get virtual dma address for command buffer */
-			esp->esp_command_dvma = (__u32) KSEG0ADDR((volatile unsigned char *) pmaz_cmd_buffer);
+			esp->esp_command_dvma = virt_to_phys(pmaz_cmd_buffer);
 
 			esp->cfreq = get_tc_speed();
 
@@ -286,7 +273,7 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 			esp->dma_mmu_release_scsi_sgl = 0;
 			esp->dma_advance_sg = 0;
 
- 			if (request_irq(esp->irq, esp_intr, SA_INTERRUPT, 
+ 			if (request_irq(esp->irq, esp_intr, SA_INTERRUPT,
  					 "PMAZ_AA", esp->ehost)) {
  				esp_deallocate(esp);
  				release_tc_card(slot);
@@ -305,231 +292,259 @@ int dec_esp_detect(Scsi_Host_Template * tpnt)
 	}
 	return 0;
 
- err_free_irq:
+err_free_irq_err:
+	free_irq(dec_interrupt[DEC_IRQ_ASC_ERR], scsi_dma_err_int);
+err_free_irq_merr:
+	free_irq(dec_interrupt[DEC_IRQ_ASC_MERR], scsi_dma_merr_int);
+err_free_irq:
 	free_irq(esp->irq, esp_intr);
- err_dealloc:
+err_dealloc:
 	esp_deallocate(esp);
 	return 0;
 }
 
 /************************************************************* DMA Functions */
-static void scsi_dma_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t scsi_dma_merr_int(int irq, void *dev_id, struct pt_regs *regs)
 {
-	extern volatile unsigned int *isr;
-	unsigned int dummy;
-
-	if (*isr & SCSI_PTR_LOADED) {
-		/* next page */
-		*scsi_next_ptr = ((*scsi_dma_ptr + PAGE_SIZE) & PAGE_MASK) << 3;
-		*isr &= ~SCSI_PTR_LOADED;
-	} else {
-		if (*isr & SCSI_PAGOVRRUN)
-			*isr &= ~SCSI_PAGOVRRUN;
-		if (*isr & SCSI_DMA_MEMRDERR) {
-			printk("Got unexpected SCSI DMA Interrupt! < ");
-			printk("SCSI_DMA_MEMRDERR ");
-		printk(">\n");
-			*isr &= ~SCSI_DMA_MEMRDERR;
-		}
-	}
+	printk("Got unexpected SCSI DMA Interrupt! < ");
+	printk("SCSI_DMA_MEMRDERR ");
+	printk(">\n");
 
-	/*
-	 * This routine will only work on IOASIC machines
-	 * so we can avoid an indirect function call here
-	 * and flush the writeback buffer the fast way
-	 */
-	dummy = *isr;
-	dummy = *isr;
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t scsi_dma_err_int(int irq, void *dev_id, struct pt_regs *regs)
+{
+	/* empty */
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t scsi_dma_int(int irq, void *dev_id, struct pt_regs *regs)
+{
+	u32 scsi_next_ptr;
+
+	scsi_next_ptr = ioasic_read(IO_REG_SCSI_DMA_P);
+
+	/* next page */
+	scsi_next_ptr = (((scsi_next_ptr >> 3) + PAGE_SIZE) & PAGE_MASK) << 3;
+	ioasic_write(IO_REG_SCSI_DMA_BP, scsi_next_ptr);
+	fast_iob();
+
+	return IRQ_HANDLED;
 }
 
 static int dma_bytes_sent(struct NCR_ESP *esp, int fifo_count)
 {
-    return fifo_count;
+	return fifo_count;
 }
 
 static void dma_drain(struct NCR_ESP *esp)
 {
-	unsigned long nw = *scsi_scr;
-	unsigned short *p = (unsigned short *)KSEG1ADDR((*scsi_dma_ptr) >> 3);
+	u32 nw, data0, data1, scsi_data_ptr;
+	u16 *p;
+
+	nw = ioasic_read(IO_REG_SCSI_SCR);
 
-    /*
+	/*
 	 * Is there something in the dma buffers left?
-     */
+	 */
 	if (nw) {
+		scsi_data_ptr = ioasic_read(IO_REG_SCSI_DMA_P) >> 3;
+		p = phys_to_virt(scsi_data_ptr);
 		switch (nw) {
 		case 1:
-			*p = (unsigned short) *scsi_sdr0;
+			data0 = ioasic_read(IO_REG_SCSI_SDR0);
+			p[0] = data0 & 0xffff;
 			break;
 		case 2:
-			*p++ = (unsigned short) (*scsi_sdr0);
-			*p = (unsigned short) ((*scsi_sdr0) >> 16);
+			data0 = ioasic_read(IO_REG_SCSI_SDR0);
+			p[0] = data0 & 0xffff;
+			p[1] = (data0 >> 16) & 0xffff;
 			break;
 		case 3:
-			*p++ = (unsigned short) (*scsi_sdr0);
-			*p++ = (unsigned short) ((*scsi_sdr0) >> 16);
-			*p = (unsigned short) (*scsi_sdr1);
+			data0 = ioasic_read(IO_REG_SCSI_SDR0);
+			data1 = ioasic_read(IO_REG_SCSI_SDR1);
+			p[0] = data0 & 0xffff;
+			p[1] = (data0 >> 16) & 0xffff;
+			p[2] = data1 & 0xffff;
 			break;
 		default:
-			printk("Strange: %d words in dma buffer left\n", (int) nw);
+			printk("Strange: %d words in dma buffer left\n", nw);
 			break;
 		}
 	}
 }
 
-static int dma_can_transfer(struct NCR_ESP *esp, Scsi_Cmnd * sp)
+static int dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd * sp)
 {
 	return sp->SCp.this_residual;
 }
 
 static void dma_dump_state(struct NCR_ESP *esp)
 {
-/*
-    ESPLOG(("esp%d: dma -- enable <%08x> residue <%08x\n",
-	    esp->esp_id, vdma_get_enable((int)esp->dregs), vdma_get_resdiue((int)esp->dregs)));
- */
 }
 
-static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length)
+static void dma_init_read(struct NCR_ESP *esp, u32 vaddress, int length)
 {
-	extern volatile unsigned int *isr;
-	unsigned int dummy;
+	u32 scsi_next_ptr, ioasic_ssr;
+	unsigned long flags;
 
 	if (vaddress & 3)
-		panic("dec_efs.c: unable to handle partial word transfers, yet...");
+		panic("dec_esp.c: unable to handle partial word transfers, yet...");
 
 	dma_cache_wback_inv((unsigned long) phys_to_virt(vaddress), length);
 
-	*ioasic_ssr &= ~SCSI_DMA_EN;
-	*scsi_scr = 0;
-	*scsi_dma_ptr = vaddress << 3;
+	spin_lock_irqsave(&ioasic_ssr_lock, flags);
+
+	fast_mb();
+	ioasic_ssr = ioasic_read(IO_REG_SSR);
+
+	ioasic_ssr &= ~IO_SSR_SCSI_DMA_EN;
+	ioasic_write(IO_REG_SSR, ioasic_ssr);
+
+	fast_wmb();
+	ioasic_write(IO_REG_SCSI_SCR, 0);
+	ioasic_write(IO_REG_SCSI_DMA_P, vaddress << 3);
 
 	/* prepare for next page */
-	*scsi_next_ptr = ((vaddress + PAGE_SIZE) & PAGE_MASK) << 3;
-	*ioasic_ssr |= (SCSI_DMA_DIR | SCSI_DMA_EN);
+	scsi_next_ptr = ((vaddress + PAGE_SIZE) & PAGE_MASK) << 3;
+	ioasic_write(IO_REG_SCSI_DMA_BP, scsi_next_ptr);
 
-	/*
-	 * see above
-	 */
-	dummy = *isr;
-	dummy = *isr;
+	ioasic_ssr |= (IO_SSR_SCSI_DMA_DIR | IO_SSR_SCSI_DMA_EN);
+	fast_wmb();
+	ioasic_write(IO_REG_SSR, ioasic_ssr);
+
+	fast_iob();
+	spin_unlock_irqrestore(&ioasic_ssr_lock, flags);
 }
 
-static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length)
+static void dma_init_write(struct NCR_ESP *esp, u32 vaddress, int length)
 {
-	extern volatile unsigned int *isr;
-	unsigned int dummy;
+	u32 scsi_next_ptr, ioasic_ssr;
+	unsigned long flags;
 
 	if (vaddress & 3)
-		panic("dec_efs.c: unable to handle partial word transfers, yet...");
+		panic("dec_esp.c: unable to handle partial word transfers, yet...");
 
 	dma_cache_wback_inv((unsigned long) phys_to_virt(vaddress), length);
 
-	*ioasic_ssr &= ~(SCSI_DMA_DIR | SCSI_DMA_EN);
-	*scsi_scr = 0;
-	*scsi_dma_ptr = vaddress << 3;
+	spin_lock_irqsave(&ioasic_ssr_lock, flags);
+
+	fast_mb();
+	ioasic_ssr = ioasic_read(IO_REG_SSR);
+
+	ioasic_ssr &= ~(IO_SSR_SCSI_DMA_DIR | IO_SSR_SCSI_DMA_EN);
+	ioasic_write(IO_REG_SSR, ioasic_ssr);
+
+	fast_wmb();
+	ioasic_write(IO_REG_SCSI_SCR, 0);
+	ioasic_write(IO_REG_SCSI_DMA_P, vaddress << 3);
 
 	/* prepare for next page */
-	*scsi_next_ptr = ((vaddress + PAGE_SIZE) & PAGE_MASK) << 3;
-	*ioasic_ssr |= SCSI_DMA_EN;
+	scsi_next_ptr = ((vaddress + PAGE_SIZE) & PAGE_MASK) << 3;
+	ioasic_write(IO_REG_SCSI_DMA_BP, scsi_next_ptr);
 
-	/*
-	 * see above
-	 */
-	dummy = *isr;
-	dummy = *isr;
+	ioasic_ssr |= IO_SSR_SCSI_DMA_EN;
+	fast_wmb();
+	ioasic_write(IO_REG_SSR, ioasic_ssr);
+
+	fast_iob();
+	spin_unlock_irqrestore(&ioasic_ssr_lock, flags);
 }
 
 static void dma_ints_off(struct NCR_ESP *esp)
 {
-	disable_irq(SCSI_DMA_INT);
+	disable_irq(dec_interrupt[DEC_IRQ_ASC_DMA]);
 }
 
 static void dma_ints_on(struct NCR_ESP *esp)
 {
-	enable_irq(SCSI_DMA_INT);
+	enable_irq(dec_interrupt[DEC_IRQ_ASC_DMA]);
 }
 
 static int dma_irq_p(struct NCR_ESP *esp)
 {
-    return (esp->eregs->esp_status & ESP_STAT_INTR);
+	return (esp->eregs->esp_status & ESP_STAT_INTR);
 }
 
 static int dma_ports_p(struct NCR_ESP *esp)
 {
-/*
- * FIXME: what's this good for?
- */
+	/*
+	 * FIXME: what's this good for?
+	 */
 	return 1;
 }
 
-static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write)
+static void dma_setup(struct NCR_ESP *esp, u32 addr, int count, int write)
 {
-    /*
-     * On the Sparc, DMA_ST_WRITE means "move data from device to memory"
-     * so when (write) is true, it actually means READ!
-     */
-	if (write) {
-	dma_init_read(esp, addr, count);
-    } else {
-	dma_init_write(esp, addr, count);
-    }
+	/*
+	 * DMA_ST_WRITE means "move data from device to memory"
+	 * so when (write) is true, it actually means READ!
+	 */
+	if (write)
+		dma_init_read(esp, addr, count);
+	else
+		dma_init_write(esp, addr, count);
 }
 
-/*
- * These aren't used yet
- */
-static void dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd * sp)
+static void dma_mmu_get_scsi_one(struct NCR_ESP *esp, struct scsi_cmnd * sp)
 {
-	sp->SCp.ptr = (char *)PHYSADDR(sp->SCp.buffer);
+	sp->SCp.ptr = (char *)virt_to_phys(sp->request_buffer);
 }
 
-static void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, Scsi_Cmnd * sp)
+static void dma_mmu_get_scsi_sgl(struct NCR_ESP *esp, struct scsi_cmnd * sp)
 {
-    int sz = sp->SCp.buffers_residual;
-    struct mmu_sglist *sg = (struct mmu_sglist *) sp->SCp.buffer;
-
-    while (sz >= 0) {
-		sg[sz].dvma_addr = PHYSADDR(sg[sz].addr);
-	sz--;
-    }
-	sp->SCp.ptr = (char *) ((unsigned long) sp->SCp.buffer->dvma_address);
+	int sz = sp->SCp.buffers_residual;
+	struct scatterlist *sg = sp->SCp.buffer;
+
+	while (sz >= 0) {
+		sg[sz].dma_address = page_to_phys(sg[sz].page) + sg[sz].offset;
+		sz--;
+	}
+	sp->SCp.ptr = (char *)(sp->SCp.buffer->dma_address);
 }
 
-static void dma_advance_sg(Scsi_Cmnd * sp)
+static void dma_advance_sg(struct scsi_cmnd * sp)
 {
-	sp->SCp.ptr = (char *) ((unsigned long) sp->SCp.buffer->dvma_address);
+	sp->SCp.ptr = (char *)(sp->SCp.buffer->dma_address);
 }
 
 static void pmaz_dma_drain(struct NCR_ESP *esp)
 {
-	memcpy((void *) (KSEG0ADDR(esp_virt_buffer)),
-		(void *) ( esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE),
+	memcpy(phys_to_virt(esp_virt_buffer),
+		(void *)KSEG1ADDR(esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE),
 		scsi_current_length);
 }
 
-static void pmaz_dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length)
+static void pmaz_dma_init_read(struct NCR_ESP *esp, u32 vaddress, int length)
 {
-	volatile int *dmareg = (volatile int *) (esp->slot + DEC_SCSI_DMAREG);
+	volatile u32 *dmareg =
+		(volatile u32 *)KSEG1ADDR(esp->slot + DEC_SCSI_DMAREG);
 
 	if (length > ESP_TGT_DMA_SIZE)
 		length = ESP_TGT_DMA_SIZE;
 
-	*dmareg = TC_ESP_DMA_ADDR(esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE);
+	*dmareg = TC_ESP_DMA_ADDR(ESP_TGT_DMA_SIZE);
+
+	iob();
 
 	esp_virt_buffer = vaddress;
 	scsi_current_length = length;
 }
 
-static void pmaz_dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length)
+static void pmaz_dma_init_write(struct NCR_ESP *esp, u32 vaddress, int length)
 {
-	volatile int *dmareg = (volatile int *) ( esp->slot + DEC_SCSI_DMAREG );
+	volatile u32 *dmareg =
+		(volatile u32 *)KSEG1ADDR(esp->slot + DEC_SCSI_DMAREG);
 
-	memcpy((void *)(esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE),
-	       (void *)KSEG0ADDR(vaddress), length);
+	memcpy((void *)KSEG1ADDR(esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE),
+	       phys_to_virt(vaddress), length);
 
-	*dmareg = TC_ESP_DMAR_WRITE | 
-		TC_ESP_DMA_ADDR(esp->slot + DEC_SCSI_SRAM + ESP_TGT_DMA_SIZE);
+	wmb();
+	*dmareg = TC_ESP_DMAR_WRITE | TC_ESP_DMA_ADDR(ESP_TGT_DMA_SIZE);
 
+	iob();
 }
 
 static void pmaz_dma_ints_off(struct NCR_ESP *esp)
@@ -540,20 +555,19 @@ static void pmaz_dma_ints_on(struct NCR_ESP *esp)
 {
 }
 
-static void pmaz_dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write)
+static void pmaz_dma_setup(struct NCR_ESP *esp, u32 addr, int count, int write)
 {
 	/*
-	 * On the Sparc, DMA_ST_WRITE means "move data from device to memory"
+	 * DMA_ST_WRITE means "move data from device to memory"
 	 * so when (write) is true, it actually means READ!
 	 */
-	if (write) {
+	if (write)
 		pmaz_dma_init_read(esp, addr, count);
-	} else {
+	else
 		pmaz_dma_init_write(esp, addr, count);
-	}
 }
 
-static void pmaz_dma_mmu_get_scsi_one(struct NCR_ESP *esp, Scsi_Cmnd * sp)
+static void pmaz_dma_mmu_get_scsi_one(struct NCR_ESP *esp, struct scsi_cmnd * sp)
 {
-	sp->SCp.ptr = (char *)KSEG0ADDR((sp->request_buffer));
+	sp->SCp.ptr = (char *)virt_to_phys(sp->request_buffer);
 }
diff --git a/drivers/scsi/dpt/dpt_osdutil.h b/drivers/scsi/dpt/dpt_osdutil.h
deleted file mode 100644
index 4b56c0436ba2..000000000000
--- a/drivers/scsi/dpt/dpt_osdutil.h
+++ /dev/null
@@ -1,358 +0,0 @@
-/*	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 miliseconds */
-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 */
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 2a18c4a0d14c..abb55c1e2ddd 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -1178,7 +1178,6 @@ static int adpt_i2o_post_wait(adpt_hba* pHba, u32* msg, int len, int timeout)
 				// dangerous.
 				status = -ETIME;
 			}
-			schedule_timeout(timeout*HZ);
 		}
 		if(pHba->host)
 			spin_lock_irq(pHba->host->host_lock);
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index ed4ba05ff132..96eb23515e8b 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -28,6 +28,7 @@
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/completion.h>
+#include <linux/transport_class.h>
 
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
@@ -79,15 +80,8 @@ void scsi_remove_host(struct Scsi_Host *shost)
 
 	set_bit(SHOST_DEL, &shost->shost_state);
 
-	if (shost->transportt->host_destroy)
-		shost->transportt->host_destroy(shost);
+	transport_unregister_device(&shost->shost_gendev);
 	class_device_unregister(&shost->shost_classdev);
-	if (shost->transport_classdev.class) {
-		if (shost->transportt->host_statistics)
-			sysfs_remove_group(&shost->transport_classdev.kobj,
-				shost->transportt->host_statistics);
- 		class_device_unregister(&shost->transport_classdev);
-	}
 	device_del(&shost->shost_gendev);
 }
 EXPORT_SYMBOL(scsi_remove_host);
@@ -135,9 +129,6 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev)
 					 GFP_KERNEL)) == NULL)
 		goto out_del_classdev;
 
-	if (shost->transportt->host_setup)
-		shost->transportt->host_setup(shost);
-
 	error = scsi_sysfs_add_host(shost);
 	if (error)
 		goto out_destroy_host;
@@ -146,8 +137,6 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev)
 	return error;
 
  out_destroy_host:
-	if (shost->transportt->host_destroy)
-		shost->transportt->host_destroy(shost);
  out_del_classdev:
 	class_device_del(&shost->shost_classdev);
  out_del_gendev:
@@ -397,3 +386,9 @@ void scsi_exit_hosts(void)
 {
 	class_unregister(&shost_class);
 }
+
+int scsi_is_host_device(const struct device *dev)
+{
+	return dev->release == scsi_host_dev_release;
+}
+EXPORT_SYMBOL(scsi_is_host_device);
diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c
index afbea8db09c5..f0d21ae735ef 100644
--- a/drivers/scsi/jazz_esp.c
+++ b/drivers/scsi/jazz_esp.c
@@ -6,6 +6,7 @@
  * jazz_esp is based on David S. Miller's ESP driver and cyber_esp
  */
 
+#include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/types.h>
@@ -27,7 +28,7 @@
 #include <asm/pgtable.h>
 
 static int  dma_bytes_sent(struct NCR_ESP *esp, int fifo_count);
-static int  dma_can_transfer(struct NCR_ESP *esp, Scsi_Cmnd *sp);
+static int  dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd *sp);
 static void dma_dump_state(struct NCR_ESP *esp);
 static void dma_init_read(struct NCR_ESP *esp, __u32 vaddress, int length);
 static void dma_init_write(struct NCR_ESP *esp, __u32 vaddress, int length);
@@ -36,11 +37,11 @@ static void dma_ints_on(struct NCR_ESP *esp);
 static int  dma_irq_p(struct NCR_ESP *esp);
 static int  dma_ports_p(struct NCR_ESP *esp);
 static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write);
-static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, Scsi_Cmnd *sp);
-static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, Scsi_Cmnd *sp);
-static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, Scsi_Cmnd *sp);
-static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, Scsi_Cmnd *sp);
-static void dma_advance_sg (Scsi_Cmnd *sp);
+static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp);
+static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp);
+static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp);
+static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp);
+static void dma_advance_sg (struct scsi_cmnd *sp);
 static void dma_led_off(struct NCR_ESP *);
 static void dma_led_on(struct NCR_ESP *);
 
@@ -52,7 +53,7 @@ static volatile unsigned char cmd_buffer[16];
 				 */
 
 /***************************************************************** Detection */
-int jazz_esp_detect(Scsi_Host_Template *tpnt)
+static int jazz_esp_detect(struct scsi_host_template *tpnt)
 {
     struct NCR_ESP *esp;
     struct ConfigDev *esp_dev;
@@ -115,7 +116,7 @@ int jazz_esp_detect(Scsi_Host_Template *tpnt)
 	esp->esp_command = (volatile unsigned char *)cmd_buffer;
 	
 	/* get virtual dma address for command buffer */
-	esp->esp_command_dvma = vdma_alloc(PHYSADDR(cmd_buffer), sizeof (cmd_buffer));
+	esp->esp_command_dvma = vdma_alloc(CPHYSADDR(cmd_buffer), sizeof (cmd_buffer));
 	
 	esp->irq = JAZZ_SCSI_IRQ;
 	request_irq(JAZZ_SCSI_IRQ, esp_intr, SA_INTERRUPT, "JAZZ SCSI",
@@ -157,7 +158,7 @@ static int dma_bytes_sent(struct NCR_ESP *esp, int fifo_count)
     return fifo_count;
 }
 
-static int dma_can_transfer(struct NCR_ESP *esp, Scsi_Cmnd *sp)
+static int dma_can_transfer(struct NCR_ESP *esp, struct scsi_cmnd *sp)
 {
     /*
      * maximum DMA size is 1MB
@@ -230,43 +231,43 @@ static void dma_setup(struct NCR_ESP *esp, __u32 addr, int count, int write)
     }
 }
 
-static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, Scsi_Cmnd *sp)
+static void dma_mmu_get_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp)
 {
-    sp->SCp.have_data_in = vdma_alloc(PHYSADDR(sp->SCp.buffer), sp->SCp.this_residual);
+    sp->SCp.have_data_in = vdma_alloc(CPHYSADDR(sp->SCp.buffer), sp->SCp.this_residual);
     sp->SCp.ptr = (char *)((unsigned long)sp->SCp.have_data_in);
 }
 
-static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, Scsi_Cmnd *sp)
+static void dma_mmu_get_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp)
 {
     int sz = sp->SCp.buffers_residual;
-    struct mmu_sglist *sg = (struct mmu_sglist *) sp->SCp.buffer;
+    struct scatterlist *sg = (struct scatterlist *) sp->SCp.buffer;
     
     while (sz >= 0) {
-	sg[sz].dvma_addr = vdma_alloc(PHYSADDR(sg[sz].addr), sg[sz].len);
+	sg[sz].dma_address = vdma_alloc(CPHYSADDR(page_address(sg[sz].page) + sg[sz].offset), sg[sz].length);
 	sz--;
     }
-    sp->SCp.ptr=(char *)((unsigned long)sp->SCp.buffer->dvma_address);
+    sp->SCp.ptr=(char *)(sp->SCp.buffer->dma_address);
 }    
 
-static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, Scsi_Cmnd *sp)
+static void dma_mmu_release_scsi_one (struct NCR_ESP *esp, struct scsi_cmnd *sp)
 {
     vdma_free(sp->SCp.have_data_in);
 }
 
-static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, Scsi_Cmnd *sp)
+static void dma_mmu_release_scsi_sgl (struct NCR_ESP *esp, struct scsi_cmnd *sp)
 {
     int sz = sp->use_sg - 1;
-    struct mmu_sglist *sg = (struct mmu_sglist *)sp->buffer;
+    struct scatterlist *sg = (struct scatterlist *)sp->buffer;
 			
     while(sz >= 0) {
-	vdma_free(sg[sz].dvma_addr);
+	vdma_free(sg[sz].dma_address);
 	sz--;
     }
 }
 
-static void dma_advance_sg (Scsi_Cmnd *sp)
+static void dma_advance_sg (struct scsi_cmnd *sp)
 {
-    sp->SCp.ptr = (char *)((unsigned long)sp->SCp.buffer->dvma_address);
+    sp->SCp.ptr = (char *)(sp->SCp.buffer->dma_address);
 }
 
 #define JAZZ_HDC_LED   0xe000d100 /* FIXME, find correct address */
@@ -285,9 +286,9 @@ static void dma_led_on(struct NCR_ESP *esp)
 #endif    
 }
 
-static Scsi_Host_Template driver_template = {
+static struct scsi_host_template driver_template = {
 	.proc_name		= "jazz_esp",
-	.proc_info		= &esp_proc_info,
+	.proc_info		= esp_proc_info,
 	.name			= "ESP 100/100a/200",
 	.detect			= jazz_esp_detect,
 	.slave_alloc		= esp_slave_alloc,
@@ -303,4 +304,4 @@ static Scsi_Host_Template driver_template = {
 	.cmd_per_lun		= 1,
 	.use_clustering		= DISABLE_CLUSTERING,
 };
-
+#include "scsi_module.c"
diff --git a/drivers/scsi/oktagon_esp.c b/drivers/scsi/oktagon_esp.c
index cd9e2c66a229..573d7ef93f08 100644
--- a/drivers/scsi/oktagon_esp.c
+++ b/drivers/scsi/oktagon_esp.c
@@ -72,8 +72,6 @@ static void dma_mmu_release_scsi_sgl(struct NCR_ESP *,Scsi_Cmnd *);
 static void dma_advance_sg(Scsi_Cmnd *);
 static int  oktagon_notify_reboot(struct notifier_block *this, unsigned long code, void *x);
 
-void esp_bootup_reset(struct NCR_ESP *esp,struct ESP_regs *eregs);
-
 #ifdef USE_BOTTOM_HALF
 static void dma_commit(void *opaque);
 
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 60decb2a7244..fb3494ab281e 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -63,10 +63,14 @@ const char * osst_version = "0.99.3";
    in the drivers are more widely classified, this may be changed to KERN_DEBUG. */
 #define OSST_DEB_MSG  KERN_NOTICE
 
-#include "scsi.h"
-#include <scsi/scsi_host.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_dbg.h>
+#include <scsi/scsi_device.h>
 #include <scsi/scsi_driver.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_host.h>
 #include <scsi/scsi_ioctl.h>
+#include <scsi/scsi_request.h>
 
 #define ST_KILOBYTE 1024
 
@@ -152,7 +156,7 @@ static int osst_nr_dev;
 static struct osst_tape **os_scsi_tapes = NULL;
 static DEFINE_RWLOCK(os_scsi_tapes_lock);
 
-static int modes_defined = FALSE;
+static int modes_defined = 0;
 
 static struct osst_buffer *new_tape_buffer(int, int, int);
 static int enlarge_buffer(struct osst_buffer *, int);
@@ -223,7 +227,7 @@ static int osst_chk_result(struct osst_tape * STp, struct scsi_request * SRpnt)
 		if (scode) printk(OSST_DEB_MSG "%s:D: Sense: %02x, ASC: %02x, ASCQ: %02x\n",
 			       	name, scode, sense[12], sense[13]);
 		if (driver_byte(result) & DRIVER_SENSE)
-			print_req_sense("osst ", SRpnt);
+			scsi_print_req_sense("osst ", SRpnt);
 	}
 	else
 #endif
@@ -238,7 +242,7 @@ static int osst_chk_result(struct osst_tape * STp, struct scsi_request * SRpnt)
 		 SRpnt->sr_cmnd[0] != TEST_UNIT_READY)) { /* Abnormal conditions for tape */
 		if (driver_byte(result) & DRIVER_SENSE) {
 			printk(KERN_WARNING "%s:W: Command with sense data:\n", name);
-			print_req_sense("osst:", SRpnt);
+			scsi_print_req_sense("osst:", SRpnt);
 		}
 		else {
 			static	int	notyetprinted = 1;
@@ -282,7 +286,7 @@ static int osst_chk_result(struct osst_tape * STp, struct scsi_request * SRpnt)
 
 
 /* Wakeup from interrupt */
-static void osst_sleep_done (Scsi_Cmnd * SCpnt)
+static void osst_sleep_done (struct scsi_cmnd * SCpnt)
 {
 	struct osst_tape * STp = container_of(SCpnt->request->rq_disk->private_data, struct osst_tape, driver);
 
@@ -624,7 +628,7 @@ static int osst_wait_ready(struct osst_tape * STp, struct scsi_request ** aSRpnt
 	memset(cmd, 0, MAX_COMMAND_SIZE);
 	cmd[0] = TEST_UNIT_READY;
 
-	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	*aSRpnt = SRpnt;
 	if (!SRpnt) return (-EBUSY);
 
@@ -645,7 +649,7 @@ static int osst_wait_ready(struct osst_tape * STp, struct scsi_request ** aSRpnt
 	    memset(cmd, 0, MAX_COMMAND_SIZE);
 	    cmd[0] = TEST_UNIT_READY;
 
-	    SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	    SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	}
 	*aSRpnt = SRpnt;
 #if DEBUG
@@ -685,7 +689,7 @@ static int osst_wait_for_medium(struct osst_tape * STp, struct scsi_request ** a
 	memset(cmd, 0, MAX_COMMAND_SIZE);
 	cmd[0] = TEST_UNIT_READY;
 
-	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	*aSRpnt = SRpnt;
 	if (!SRpnt) return (-EBUSY);
 
@@ -704,7 +708,7 @@ static int osst_wait_for_medium(struct osst_tape * STp, struct scsi_request ** a
 	    memset(cmd, 0, MAX_COMMAND_SIZE);
 	    cmd[0] = TEST_UNIT_READY;
 
-	    SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	    SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	}
 	*aSRpnt = SRpnt;
 #if DEBUG
@@ -756,7 +760,7 @@ static int osst_flush_drive_buffer(struct osst_tape * STp, struct scsi_request *
 	cmd[0] = WRITE_FILEMARKS;
 	cmd[1] = 1;
 
-	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	*aSRpnt = SRpnt;
 	if (!SRpnt) return (-EBUSY);
 	if (STp->buffer->syscall_result) {
@@ -847,8 +851,8 @@ static int osst_recover_wait_frame(struct osst_tape * STp, struct scsi_request *
 		memset(cmd, 0, MAX_COMMAND_SIZE);
 		cmd[0] = WRITE_FILEMARKS;
 		cmd[1] = 1;
-		SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout,
-								MAX_RETRIES, TRUE);
+		SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, 0, DMA_NONE, STp->timeout,
+								MAX_RETRIES, 1);
 
 		while (retval && time_before (jiffies, startwait + 5*60*HZ)) {
 
@@ -865,8 +869,8 @@ static int osst_recover_wait_frame(struct osst_tape * STp, struct scsi_request *
 			memset(cmd, 0, MAX_COMMAND_SIZE);
 			cmd[0] = READ_POSITION;
 
-			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 20, SCSI_DATA_READ, STp->timeout,
-										MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 20, DMA_FROM_DEVICE, STp->timeout,
+										MAX_RETRIES, 1);
 
 			retval = ( STp->buffer->syscall_result || (STp->buffer)->b_data[15] > 25 );
 			STp->buffer->b_data = olddata; STp->buffer->buffer_size = oldsize;
@@ -911,8 +915,8 @@ static int osst_read_frame(struct osst_tape * STp, struct scsi_request ** aSRpnt
 	if (debugging)
 		printk(OSST_DEB_MSG "%s:D: Reading frame from OnStream tape\n", name);
 #endif
-	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, SCSI_DATA_READ,
-				      STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, DMA_FROM_DEVICE,
+				      STp->timeout, MAX_RETRIES, 1);
 	*aSRpnt = SRpnt;
 	if (!SRpnt)
 		return (-EBUSY);
@@ -987,7 +991,7 @@ static int osst_initiate_read(struct osst_tape * STp, struct scsi_request ** aSR
 #if DEBUG
 		printk(OSST_DEB_MSG "%s:D: Start Read Ahead on OnStream tape\n", name);
 #endif
-		SRpnt   = osst_do_scsi(*aSRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+		SRpnt   = osst_do_scsi(*aSRpnt, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 		*aSRpnt = SRpnt;
 		if ((retval = STp->buffer->syscall_result))
 			printk(KERN_WARNING "%s:W: Error starting read ahead\n", name);
@@ -1120,7 +1124,7 @@ static int osst_get_logical_frame(struct osst_tape * STp, struct scsi_request **
 			"%s:D: Exit get logical frame (%d=>%d) from OnStream tape with code %d\n",
 			name, frame_seq_number, STp->frame_seq_number, STps->eof);
 #endif
-	STp->fast_open = FALSE;
+	STp->fast_open = 0;
 	STp->read_error_frame = 0;
 	return (STps->eof);
 }
@@ -1368,8 +1372,8 @@ static int osst_read_back_buffer_and_rewrite(struct osst_tape * STp, struct scsi
 		cmd[7] = 32768 >> 8;
 		cmd[8] = 32768 & 0xff;
 
-		SRpnt = osst_do_scsi(SRpnt, STp, cmd, OS_FRAME_SIZE, SCSI_DATA_READ,
-					    STp->timeout, MAX_RETRIES, TRUE);
+		SRpnt = osst_do_scsi(SRpnt, STp, cmd, OS_FRAME_SIZE, DMA_FROM_DEVICE,
+					    STp->timeout, MAX_RETRIES, 1);
 	
 		if ((STp->buffer)->syscall_result || !SRpnt) {
 			printk(KERN_ERR "%s:E: Failed to read frame back from OnStream buffer\n", name);
@@ -1440,8 +1444,8 @@ static int osst_read_back_buffer_and_rewrite(struct osst_tape * STp, struct scsi
 				name, new_frame+i, frame_seq_number+i, logical_blk_num + i*blks_per_frame,
 				p[0], p[1], p[2], p[3]);
 #endif
-		SRpnt = osst_do_scsi(SRpnt, STp, cmd, OS_FRAME_SIZE, SCSI_DATA_WRITE,
-					    STp->timeout, MAX_RETRIES, TRUE);
+		SRpnt = osst_do_scsi(SRpnt, STp, cmd, OS_FRAME_SIZE, DMA_TO_DEVICE,
+					    STp->timeout, MAX_RETRIES, 1);
 
 		if (STp->buffer->syscall_result)
 			flag = 1;
@@ -1456,8 +1460,8 @@ static int osst_read_back_buffer_and_rewrite(struct osst_tape * STp, struct scsi
 				memset(cmd, 0, MAX_COMMAND_SIZE);
 				cmd[0] = WRITE_FILEMARKS;
 				cmd[1] = 1;
-				SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE,
-							    STp->timeout, MAX_RETRIES, TRUE);
+				SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE,
+							    STp->timeout, MAX_RETRIES, 1);
 #if DEBUG
 				if (debugging) {
 					printk(OSST_DEB_MSG "%s:D: Sleeping in re-write wait ready\n", name);
@@ -1471,8 +1475,8 @@ static int osst_read_back_buffer_and_rewrite(struct osst_tape * STp, struct scsi
 					memset(cmd, 0, MAX_COMMAND_SIZE);
 					cmd[0] = TEST_UNIT_READY;
 
-					SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout,
-												MAX_RETRIES, TRUE);
+					SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE, STp->timeout,
+												MAX_RETRIES, 1);
 
 					if (SRpnt->sr_sense_buffer[2] == 2 && SRpnt->sr_sense_buffer[12] == 4 &&
 					    (SRpnt->sr_sense_buffer[13] == 1 || SRpnt->sr_sense_buffer[13] == 8)) {
@@ -1577,8 +1581,8 @@ static int osst_reposition_and_retry(struct osst_tape * STp, struct scsi_request
 			printk(OSST_DEB_MSG "%s:D: About to write pending fseq %d at fppos %d\n",
 					  name, STp->frame_seq_number-1, STp->first_frame_position);
 #endif
-			SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, SCSI_DATA_WRITE,
-						      STp->timeout, MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, DMA_TO_DEVICE,
+						      STp->timeout, MAX_RETRIES, 1);
 			*aSRpnt = SRpnt;
 
 			if (STp->buffer->syscall_result) {		/* additional write error */
@@ -2036,7 +2040,7 @@ static void osst_set_retries(struct osst_tape * STp, struct scsi_request ** aSRp
 	if (debugging)
 	    printk(OSST_DEB_MSG "%s:D: Setting number of retries on OnStream tape to %d\n", name, retries);
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_WRITE, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_TO_DEVICE, STp->timeout, 0, 1);
 	*aSRpnt = SRpnt;
 
 	if ((STp->buffer)->syscall_result)
@@ -2576,7 +2580,7 @@ static int osst_configure_onstream(struct osst_tape *STp, struct scsi_request **
 	cmd[2] = BLOCK_SIZE_PAGE;
 	cmd[4] = BLOCK_SIZE_PAGE_LENGTH + MODE_HEADER_LENGTH;
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_READ, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_FROM_DEVICE, STp->timeout, 0, 1);
 	if (SRpnt == NULL) {
 #if DEBUG
  	    printk(OSST_DEB_MSG "osst :D: Busy\n");
@@ -2613,7 +2617,7 @@ static int osst_configure_onstream(struct osst_tape *STp, struct scsi_request **
 	cmd[1] = 0x10;
 	cmd[4] = BLOCK_SIZE_PAGE_LENGTH + MODE_HEADER_LENGTH;
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_WRITE, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_TO_DEVICE, STp->timeout, 0, 1);
 	*aSRpnt = SRpnt;
 	if ((STp->buffer)->syscall_result != 0) {
 	    printk (KERN_ERR "%s:E: Couldn't set tape block size mode page\n", name);
@@ -2653,7 +2657,7 @@ static int osst_configure_onstream(struct osst_tape *STp, struct scsi_request **
 	(STp->buffer)->b_data[MODE_HEADER_LENGTH + 6] = 0;
 	(STp->buffer)->b_data[MODE_HEADER_LENGTH + 7] = 0;
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_WRITE, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_TO_DEVICE, STp->timeout, 0, 1);
 	*aSRpnt = SRpnt;
 
 	if ((STp->buffer)->syscall_result != 0) {
@@ -2668,7 +2672,7 @@ static int osst_configure_onstream(struct osst_tape *STp, struct scsi_request **
 	cmd[2] = CAPABILITIES_PAGE;
 	cmd[4] = CAPABILITIES_PAGE_LENGTH + MODE_HEADER_LENGTH;
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_READ, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_FROM_DEVICE, STp->timeout, 0, 1);
 	*aSRpnt = SRpnt;
 
 	if ((STp->buffer)->syscall_result != 0) {
@@ -2688,7 +2692,7 @@ static int osst_configure_onstream(struct osst_tape *STp, struct scsi_request **
 	cmd[2] = TAPE_PARAMTR_PAGE;
 	cmd[4] = TAPE_PARAMTR_PAGE_LENGTH + MODE_HEADER_LENGTH;
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_READ, STp->timeout, 0, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_FROM_DEVICE, STp->timeout, 0, 1);
 	*aSRpnt = SRpnt;
 
 	if ((STp->buffer)->syscall_result != 0) {
@@ -2762,8 +2766,8 @@ static int osst_get_frame_position(struct osst_tape *STp, struct scsi_request **
 	scmd[0] = READ_POSITION;
 
 	STp->buffer->b_data = mybuf; STp->buffer->buffer_size = 24;
-	SRpnt = osst_do_scsi(*aSRpnt, STp, scmd, 20, SCSI_DATA_READ,
-				      STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(*aSRpnt, STp, scmd, 20, DMA_FROM_DEVICE,
+				      STp->timeout, MAX_RETRIES, 1);
 	if (!SRpnt) {
 		STp->buffer->b_data = olddata; STp->buffer->buffer_size = oldsize;
 		return (-EBUSY);
@@ -2782,8 +2786,8 @@ static int osst_get_frame_position(struct osst_tape *STp, struct scsi_request **
 			memset (scmd, 0, MAX_COMMAND_SIZE);
 			scmd[0] = READ_POSITION;
 			STp->buffer->b_data = mybuf; STp->buffer->buffer_size = 24;
-			SRpnt = osst_do_scsi(SRpnt, STp, scmd, 20, SCSI_DATA_READ,
-						    STp->timeout, MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(SRpnt, STp, scmd, 20, DMA_FROM_DEVICE,
+						    STp->timeout, MAX_RETRIES, 1);
 #if DEBUG
 			printk(OSST_DEB_MSG "%s:D: Reread position, reason=[%02x:%02x:%02x], result=[%s%02x:%02x:%02x]\n",
 					name, mysense[2], mysense[12], mysense[13], STp->buffer->syscall_result?"":"ok:",
@@ -2861,8 +2865,8 @@ static int osst_set_frame_position(struct osst_tape *STp, struct scsi_request **
 		if (skip)
 			scmd[9] = 0x80;
 
-		SRpnt = osst_do_scsi(*aSRpnt, STp, scmd, 0, SCSI_DATA_NONE, STp->long_timeout,
-								MAX_RETRIES, TRUE);
+		SRpnt = osst_do_scsi(*aSRpnt, STp, scmd, 0, DMA_NONE, STp->long_timeout,
+								MAX_RETRIES, 1);
 		if (!SRpnt)
 			return (-EBUSY);
 		*aSRpnt  = SRpnt;
@@ -2999,8 +3003,8 @@ static int osst_flush_write_buffer(struct osst_tape *STp, struct scsi_request **
 			  			 name, offset, transfer, blks);
 #endif
 
-		SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, transfer, SCSI_DATA_WRITE,
-					      STp->timeout, MAX_RETRIES, TRUE);
+		SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, transfer, DMA_TO_DEVICE,
+					      STp->timeout, MAX_RETRIES, 1);
 		*aSRpnt = SRpnt;
 		if (!SRpnt)
 			return (-EBUSY);
@@ -3082,7 +3086,7 @@ static int osst_flush_buffer(struct osst_tape * STp, struct scsi_request ** aSRp
 
 	if (!seek_next) {
 		if (STps->eof == ST_FM_HIT) {
-			result = cross_eof(STp, aSRpnt, FALSE); /* Back over the EOF hit */
+			result = cross_eof(STp, aSRpnt, 0); /* Back over the EOF hit */
 			if (!result)
 				STps->eof = ST_NOEOF;
 			else {
@@ -3156,7 +3160,7 @@ static int osst_write_frame(struct osst_tape * STp, struct scsi_request ** aSRpn
 	if (!synchronous)
 		STp->write_pending = 1;
 #endif
-	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, SCSI_DATA_WRITE, STp->timeout,
+	SRpnt = osst_do_scsi(*aSRpnt, STp, cmd, OS_FRAME_SIZE, DMA_TO_DEVICE, STp->timeout,
 									MAX_RETRIES, synchronous);
 	if (!SRpnt)
 		return (-EBUSY);
@@ -3218,7 +3222,7 @@ static void reset_state(struct osst_tape *STp)
 		STps->rw = ST_IDLE;
 		STps->eof = ST_NOEOF;
 		STps->at_sm = 0;
-		STps->last_block_valid = FALSE;
+		STps->last_block_valid = 0;
 		STps->drv_block = -1;
 		STps->drv_file = -1;
 	}
@@ -3372,7 +3376,7 @@ static ssize_t osst_write(struct file * filp, const char __user * buf, size_t co
 #endif
 			}
 		}
-		STp->fast_open = FALSE;
+		STp->fast_open = 0;
 	}
 	if (!STp->header_ok) {
 #if DEBUG
@@ -3447,7 +3451,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
 		blks = do_count / STp->block_size;
 		STp->logical_blk_num += blks;  /* logical_blk_num is incremented as data is moved from user */
   
-		i = osst_write_frame(STp, &SRpnt, TRUE);
+		i = osst_write_frame(STp, &SRpnt, 1);
 
 		if (i == (-ENOSPC)) {
 			transfer = STp->buffer->writing;	/* FIXME -- check this logic */
@@ -3528,7 +3532,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
 		STp->dirty = !((STp->buffer)->writing ==
 				          (STp->buffer)->buffer_bytes);
 
-		i = osst_write_frame(STp, &SRpnt, FALSE);
+		i = osst_write_frame(STp, &SRpnt, 0);
 		if (i < 0) {
 			retval = (-EIO);
 			goto out;
@@ -3769,7 +3773,7 @@ static int osst_set_options(struct osst_tape *STp, long options)
 	STm = &(STp->modes[STp->current_mode]);
 	if (!STm->defined) {
 		memcpy(STm, &(STp->modes[0]), sizeof(*STm));
-		modes_defined = TRUE;
+		modes_defined = 1;
 #if DEBUG
 		if (debugging)
 			printk(OSST_DEB_MSG "%s:D: Initialized mode %d definition from mode 0\n",
@@ -3921,12 +3925,12 @@ static int osst_int_ioctl(struct osst_tape * STp, struct scsi_request ** aSRpnt,
 	int			timeout;
 	long			ltmp;
 	int			i, ioctl_result;
-	int			chg_eof = TRUE;
+	int			chg_eof = 1;
 	unsigned char		cmd[MAX_COMMAND_SIZE];
 	struct scsi_request   * SRpnt = * aSRpnt;
 	struct st_partstat    * STps;
 	int			fileno, blkno, at_sm, frame_seq_numbr, logical_blk_num;
-	int			datalen = 0, direction = SCSI_DATA_NONE;
+	int			datalen = 0, direction = DMA_NONE;
 	char		      * name = tape_name(STp);
 
 	if (STp->ready != ST_READY && cmd_in != MTLOAD) {
@@ -3946,7 +3950,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct scsi_request ** aSRpnt,
 	memset(cmd, 0, MAX_COMMAND_SIZE);
 	switch (cmd_in) {
 	 case MTFSFM:
-		chg_eof = FALSE; /* Changed from the FSF after this */
+		chg_eof = 0; /* Changed from the FSF after this */
 	 case MTFSF:
 		if (STp->raw)
 		   return (-EIO);
@@ -3961,7 +3965,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct scsi_request ** aSRpnt,
 		goto os_bypass;
 
 	 case MTBSF:
-		chg_eof = FALSE; /* Changed from the FSF after this */
+		chg_eof = 0; /* Changed from the FSF after this */
 	 case MTBSFM:
 		if (STp->raw)
 		   return (-EIO);
@@ -4176,7 +4180,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct scsi_request ** aSRpnt,
 	 case MTSETDENSITY:       /* Set tape density */
 	 case MTSETDRVBUFFER:     /* Set drive buffering */
 	 case SET_DENS_AND_BLK:   /* Set density and block size */
-		 chg_eof = FALSE;
+		 chg_eof = 0;
 		 if (STp->dirty || (STp->buffer)->buffer_bytes != 0)
 			 return (-EIO);       /* Not allowed if data in buffer */
 		 if ((cmd_in == MTSETBLK || cmd_in == SET_DENS_AND_BLK) &&
@@ -4193,7 +4197,7 @@ static int osst_int_ioctl(struct osst_tape * STp, struct scsi_request ** aSRpnt,
 		return (-ENOSYS);
 	}
 
-	SRpnt = osst_do_scsi(SRpnt, STp, cmd, datalen, direction, timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(SRpnt, STp, cmd, datalen, direction, timeout, MAX_RETRIES, 1);
 
 	ioctl_result = (STp->buffer)->syscall_result;
 
@@ -4249,7 +4253,7 @@ os_bypass:
 		else if (cmd_in == MTLOAD) {
 			for (i=0; i < ST_NBR_PARTITIONS; i++) {
 			    STp->ps[i].rw = ST_IDLE;
-			    STp->ps[i].last_block_valid = FALSE;/* FIXME - where else is this field maintained? */
+			    STp->ps[i].last_block_valid = 0;/* FIXME - where else is this field maintained? */
 			}
 			STp->partition = 0;
 		}
@@ -4304,7 +4308,7 @@ os_bypass:
 static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 {
 	unsigned short	      flags;
-	int		      i, b_size, new_session = FALSE, retval = 0;
+	int		      i, b_size, new_session = 0, retval = 0;
 	unsigned char	      cmd[MAX_COMMAND_SIZE];
 	struct scsi_request * SRpnt = NULL;
 	struct osst_tape    * STp;
@@ -4353,7 +4357,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 			printk(OSST_DEB_MSG "%s:D: Mode change from %d to %d.\n",
 					       name, STp->current_mode, mode);
 #endif
-		new_session = TRUE;
+		new_session = 1;
 		STp->current_mode = mode;
 	}
 	STm = &(STp->modes[STp->current_mode]);
@@ -4403,7 +4407,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 	memset (cmd, 0, MAX_COMMAND_SIZE);
 	cmd[0] = TEST_UNIT_READY;
 
-	SRpnt = osst_do_scsi(NULL, STp, cmd, 0, SCSI_DATA_NONE, STp->timeout, MAX_RETRIES, TRUE);
+	SRpnt = osst_do_scsi(NULL, STp, cmd, 0, DMA_NONE, STp->timeout, MAX_RETRIES, 1);
 	if (!SRpnt) {
 		retval = (STp->buffer)->syscall_result;		/* FIXME - valid? */
 		goto err_out;
@@ -4423,8 +4427,8 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
         		cmd[0] = START_STOP;
 			cmd[1] = 1;
 			cmd[4] = 1;
-			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE,
-					     STp->timeout, MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE,
+					     STp->timeout, MAX_RETRIES, 1);
 		}
 		osst_wait_ready(STp, &SRpnt, (SRpnt->sr_sense_buffer[13]==1?15:3) * 60, 0);
 	}
@@ -4440,8 +4444,8 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 			memset (cmd, 0, MAX_COMMAND_SIZE);
 			cmd[0] = TEST_UNIT_READY;
 
-			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE,
-					     STp->timeout, MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE,
+					     STp->timeout, MAX_RETRIES, 1);
 			if ((SRpnt->sr_sense_buffer[0] & 0x70) != 0x70 ||
 			    (SRpnt->sr_sense_buffer[2] & 0x0f) != UNIT_ATTENTION)
 				break;
@@ -4456,11 +4460,11 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 			STps->rw = ST_IDLE;		/* FIXME - seems to be redundant... */
 			STps->eof = ST_NOEOF;
 			STps->at_sm = 0;
-			STps->last_block_valid = FALSE;
+			STps->last_block_valid = 0;
 			STps->drv_block = 0;
 			STps->drv_file = 0 ;
 		}
-		new_session = TRUE;
+		new_session = 1;
 		STp->recover_count = 0;
 		STp->abort_count = 0;
 	}
@@ -4477,7 +4481,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 		cmd[2] = VENDOR_IDENT_PAGE;
 		cmd[4] = VENDOR_IDENT_PAGE_LENGTH + MODE_HEADER_LENGTH;
 
-		SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_READ, STp->timeout, 0, TRUE);
+		SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_FROM_DEVICE, STp->timeout, 0, 1);
 
 		if (STp->buffer->syscall_result                     ||
 		    STp->buffer->b_data[MODE_HEADER_LENGTH + 2] != 'L' ||
@@ -4507,7 +4511,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 				STp->buffer->buffer_bytes = STp->buffer->read_pointer = 0;
 			}
 			STp->buffer->buffer_blocks = OS_DATA_SIZE / STp->block_size;
-			STp->fast_open = TRUE;
+			STp->fast_open = 1;
 			scsi_release_request(SRpnt);
 			return 0;
 		}
@@ -4518,7 +4522,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 #endif
 		STp->header_ok = 0;
 	}
-	STp->fast_open = FALSE;
+	STp->fast_open = 0;
 
 	if ((STp->buffer)->syscall_result != 0 &&   /* in all error conditions except no medium */ 
 	    (SRpnt->sr_sense_buffer[2] != 2 || SRpnt->sr_sense_buffer[12] != 0x3A) ) {
@@ -4540,7 +4544,7 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 #if DEBUG
 		printk(OSST_DEB_MSG "%s:D: Applying soft reset\n", name);
 #endif
-		SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], SCSI_DATA_WRITE, STp->timeout, 0, TRUE);
+		SRpnt = osst_do_scsi(SRpnt, STp, cmd, cmd[4], DMA_TO_DEVICE, STp->timeout, 0, 1);
 
 		STp->header_ok = 0;
 
@@ -4549,8 +4553,8 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 			memset (cmd, 0, MAX_COMMAND_SIZE);
 			cmd[0] = TEST_UNIT_READY;
 
-			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, SCSI_DATA_NONE,
-						    STp->timeout, MAX_RETRIES, TRUE);
+			SRpnt = osst_do_scsi(SRpnt, STp, cmd, 0, DMA_NONE,
+						    STp->timeout, MAX_RETRIES, 1);
 			if ((SRpnt->sr_sense_buffer[0] & 0x70) != 0x70 ||
 			    (SRpnt->sr_sense_buffer[2] & 0x0f) == NOT_READY)
 			break;
@@ -4565,11 +4569,11 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 					STps->rw = ST_IDLE;
 					STps->eof = ST_NOEOF;
 					STps->at_sm = 0;
-					STps->last_block_valid = FALSE;
+					STps->last_block_valid = 0;
 					STps->drv_block = 0;
 					STps->drv_file = 0 ;
 				}
-				new_session = TRUE;
+				new_session = 1;
 			}
 		}
 	}
@@ -4629,8 +4633,8 @@ static int os_scsi_tape_open(struct inode * inode, struct file * filp)
 		if (debugging)
 	printk(OSST_DEB_MSG "%s:D: New Session\n", name);
 #endif
-		STp->density_changed = STp->blksize_changed = FALSE;
-		STp->compression_changed = FALSE;
+		STp->density_changed = STp->blksize_changed = 0;
+		STp->compression_changed = 0;
 	}
 
 	/*
@@ -4704,7 +4708,7 @@ static int os_scsi_tape_flush(struct file * filp)
 			if (STp->can_bsr)
 				result = osst_flush_buffer(STp, &SRpnt, 0); /* this is the default path */
 			else if (STps->eof == ST_FM_HIT) {
-				result = cross_eof(STp, &SRpnt, FALSE);
+				result = cross_eof(STp, &SRpnt, 0);
 					if (result) {
 						if (STps->drv_file >= 0)
 							STps->drv_file++;
@@ -4716,7 +4720,7 @@ static int os_scsi_tape_flush(struct file * filp)
 			}
 		}
 		else if ((STps->eof == ST_NOEOF &&
-			  !(result = cross_eof(STp, &SRpnt, TRUE))) ||
+			  !(result = cross_eof(STp, &SRpnt, 1))) ||
 			 STps->eof == ST_FM_HIT) {
 			if (STps->drv_file >= 0)
 				STps->drv_file++;
@@ -4971,7 +4975,7 @@ static int osst_ioctl(struct inode * inode,struct file * file,
 			for (i=0; i < ST_NBR_PARTITIONS; i++) {
 				STp->ps[i].rw = ST_IDLE;
 				STp->ps[i].at_sm = 0;
-				STp->ps[i].last_block_valid = FALSE;
+				STp->ps[i].last_block_valid = 0;
 			}
 			STp->partition = STp->new_partition = 0;
 			STp->nbr_partitions = 1;  /* Bad guess ?-) */
@@ -4997,7 +5001,7 @@ static int osst_ioctl(struct inode * inode,struct file * file,
 		}
 
 		if (auto_weof)
-			cross_eof(STp, &SRpnt, FALSE);
+			cross_eof(STp, &SRpnt, 0);
 
 		if (mtc.mt_op == MTCOMPRESSION)
 			retval = -EINVAL;       /* OnStream drives don't have compression hardware */
@@ -5013,7 +5017,7 @@ static int osst_ioctl(struct inode * inode,struct file * file,
 		goto out;
 	}
 
-	if ((i = osst_flush_buffer(STp, &SRpnt, FALSE)) < 0) {
+	if ((i = osst_flush_buffer(STp, &SRpnt, 0)) < 0) {
 		retval = i;
 		goto out;
 	}
@@ -5140,7 +5144,7 @@ static struct osst_buffer * new_tape_buffer( int from_initialization, int need_d
 	memset(tb, 0, i);
 	tb->sg_segs = tb->orig_sg_segs = 0;
 	tb->use_sg = max_sg;
-	tb->in_use = TRUE;
+	tb->in_use = 1;
 	tb->dma = need_dma;
 	tb->buffer_size = 0;
 #if DEBUG
@@ -5158,7 +5162,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 	int segs, nbr, max_segs, b_size, priority, order, got;
 
 	if (STbuffer->buffer_size >= OS_FRAME_SIZE)
-		return TRUE;
+		return 1;
 
 	if (STbuffer->sg_segs) {
 		printk(KERN_WARNING "osst :A: Buffer not previously normalized.\n");
@@ -5167,7 +5171,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 	/* See how many segments we can use -- need at least two */
 	nbr = max_segs = STbuffer->use_sg;
 	if (nbr <= 2)
-		return FALSE;
+		return 0;
 
 	priority = GFP_KERNEL /* | __GFP_NOWARN */;
 	if (need_dma)
@@ -5186,7 +5190,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 	}
 	if (STbuffer->sg[0].page == NULL) {
 		printk(KERN_NOTICE "osst :I: Can't allocate tape buffer main segment.\n");
-		return FALSE;
+		return 0;
 	}
 	/* Got initial segment of 'bsize,order', continue with same size if possible, except for AUX */
 	for (segs=STbuffer->sg_segs=1, got=b_size;
@@ -5206,7 +5210,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 			STbuffer->buffer_size = got;
 #endif
 			normalize_buffer(STbuffer);
-			return FALSE;
+			return 0;
 		}
 		STbuffer->sg[segs].length = (OS_FRAME_SIZE - got <= PAGE_SIZE / 2) ? (OS_FRAME_SIZE - got) : b_size;
 		got += STbuffer->sg[segs].length;
@@ -5225,7 +5229,7 @@ static int enlarge_buffer(struct osst_buffer *STbuffer, int need_dma)
 	}
 #endif
 
-	return TRUE;
+	return 1;
 }
 
 
@@ -5457,7 +5461,7 @@ static struct file_operations osst_fops = {
 	.release =      os_scsi_tape_close,
 };
 
-static int osst_supports(Scsi_Device * SDp)
+static int osst_supports(struct scsi_device * SDp)
 {
 	struct	osst_support_data {
 		char *vendor;
@@ -5592,7 +5596,7 @@ static void osst_sysfs_init(void)
 	if ( IS_ERR(osst_sysfs_class) )
 		printk(KERN_WARNING "osst :W: Unable to register sysfs class\n");
 	else
-		osst_sysfs_valid = TRUE;
+		osst_sysfs_valid = 1;
 }
 
 static void osst_sysfs_add(dev_t dev, struct device *device, struct osst_tape * STp, char * name)
@@ -5636,7 +5640,7 @@ static void osst_sysfs_cleanup(void)
 
 static int osst_probe(struct device *dev)
 {
-	Scsi_Device	   * SDp = to_scsi_device(dev);
+	struct scsi_device * SDp = to_scsi_device(dev);
 	struct osst_tape   * tpnt;
 	struct st_modedef  * STm;
 	struct st_partstat * STps;
@@ -5691,7 +5695,7 @@ static int osst_probe(struct device *dev)
 	i = SDp->host->sg_tablesize;
 	if (osst_max_sg_segs < i)
 		i = osst_max_sg_segs;
-	buffer = new_tape_buffer(TRUE, SDp->host->unchecked_isa_dma, i);
+	buffer = new_tape_buffer(1, SDp->host->unchecked_isa_dma, i);
 	if (buffer == NULL) {
 		write_unlock(&os_scsi_tapes_lock);
 		printk(KERN_ERR "osst :E: Unable to allocate a tape buffer, device not attached.\n");
@@ -5741,7 +5745,7 @@ static int osst_probe(struct device *dev)
 
 	for (i=0; i < ST_NBR_MODES; i++) {
 		STm = &(tpnt->modes[i]);
-		STm->defined = FALSE;
+		STm->defined = 0;
 		STm->sysv = OSST_SYSV;
 		STm->defaults_for_writes = 0;
 		STm->do_async_writes = OSST_ASYNC_WRITES;
@@ -5757,15 +5761,15 @@ static int osst_probe(struct device *dev)
 		STps->rw = ST_IDLE;
 		STps->eof = ST_NOEOF;
 		STps->at_sm = 0;
-		STps->last_block_valid = FALSE;
+		STps->last_block_valid = 0;
 		STps->drv_block = (-1);
 		STps->drv_file = (-1);
 	}
 
 	tpnt->current_mode = 0;
-	tpnt->modes[0].defined = TRUE;
-	tpnt->modes[2].defined = TRUE;
-	tpnt->density_changed = tpnt->compression_changed = tpnt->blksize_changed = FALSE;
+	tpnt->modes[0].defined = 1;
+	tpnt->modes[2].defined = 1;
+	tpnt->density_changed = tpnt->compression_changed = tpnt->blksize_changed = 0;
 
 	init_MUTEX(&tpnt->lock);
 	osst_nr_dev++;
@@ -5804,7 +5808,7 @@ out_put_disk:
 
 static int osst_remove(struct device *dev)
 {
-	Scsi_Device	 * SDp = to_scsi_device(dev);
+	struct scsi_device * SDp = to_scsi_device(dev);
 	struct osst_tape * tpnt;
 	int i, mode;
 
diff --git a/drivers/scsi/osst.h b/drivers/scsi/osst.h
index 1561d4ded72b..b72e1c76f52c 100644
--- a/drivers/scsi/osst.h
+++ b/drivers/scsi/osst.h
@@ -518,7 +518,7 @@ struct osst_buffer {
   int writing;
   int midlevel_result;
   int syscall_result;
-  Scsi_Request *last_SRpnt;
+  struct scsi_request *last_SRpnt;
   unsigned char *b_data;
   os_aux_t *aux;               /* onstream AUX structure at end of each block     */
   unsigned short use_sg;       /* zero or number of s/g segments for this adapter */
@@ -531,7 +531,7 @@ struct osst_buffer {
 struct osst_tape {
   struct scsi_driver *driver;
   unsigned capacity;
-  Scsi_Device* device;
+  struct scsi_device *device;
   struct semaphore lock;       /* for serialization */
   struct completion wait;      /* for SCSI commands */
   struct osst_buffer * buffer;
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 7c6fafc5c48a..e0208886b45e 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -11,7 +11,7 @@
  *  (or disk like devices) sharing a common amount of RAM
  *
  *
- *  For documentation see http://www.torque.net/sg/sdebug25.html
+ *  For documentation see http://www.torque.net/sg/sdebug26.html
  *
  *   D. Gilbert (dpg) work for Magneto-Optical device test [20010421]
  *   dpg: work for devfs large number of disks [20010809]
@@ -56,7 +56,7 @@
 #include "scsi_debug.h"
 
 #define SCSI_DEBUG_VERSION "1.75"
-static const char * scsi_debug_version_date = "20041023";
+static const char * scsi_debug_version_date = "20050113";
 
 /* Additional Sense Code (ASC) used */
 #define NO_ADDED_SENSE 0x0
@@ -1675,6 +1675,7 @@ static void do_create_driverfs_files(void)
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_add_host);
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
+	driver_create_file(&sdebug_driverfs_driver, &driver_attr_dsense);
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
 	driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
@@ -1693,6 +1694,7 @@ static void do_remove_driverfs_files(void)
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_tgts);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
+	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dsense);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_delay);
 	driver_remove_file(&sdebug_driverfs_driver, &driver_attr_add_host);
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 39085cdfd935..eb337e474583 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1948,3 +1948,96 @@ int scsi_command_normalize_sense(struct scsi_cmnd *cmd,
 			sizeof(cmd->sense_buffer), sshdr);
 }
 EXPORT_SYMBOL(scsi_command_normalize_sense);
+
+/**
+ * scsi_sense_desc_find - search for a given descriptor type in
+ *			descriptor sense data format.
+ *
+ * @sense_buffer:	byte array of descriptor format sense data
+ * @sb_len:		number of valid bytes in sense_buffer
+ * @desc_type:		value of descriptor type to find
+ *			(e.g. 0 -> information)
+ *
+ * Notes:
+ *	only valid when sense data is in descriptor format
+ *
+ * Return value:
+ *	pointer to start of (first) descriptor if found else NULL
+ **/
+const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
+				int desc_type)
+{
+	int add_sen_len, add_len, desc_len, k;
+	const u8 * descp;
+
+	if ((sb_len < 8) || (0 == (add_sen_len = sense_buffer[7])))
+		return NULL;
+	if ((sense_buffer[0] < 0x72) || (sense_buffer[0] > 0x73))
+		return NULL;
+	add_sen_len = (add_sen_len < (sb_len - 8)) ?
+			add_sen_len : (sb_len - 8);
+	descp = &sense_buffer[8];
+	for (desc_len = 0, k = 0; k < add_sen_len; k += desc_len) {
+		descp += desc_len;
+		add_len = (k < (add_sen_len - 1)) ? descp[1]: -1;
+		desc_len = add_len + 2;
+		if (descp[0] == desc_type)
+			return descp;
+		if (add_len < 0) // short descriptor ??
+			break;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL(scsi_sense_desc_find);
+
+/**
+ * scsi_get_sense_info_fld - attempts to get information field from
+ *			sense data (either fixed or descriptor format)
+ *
+ * @sense_buffer:	byte array of sense data
+ * @sb_len:		number of valid bytes in sense_buffer
+ * @info_out:		pointer to 64 integer where 8 or 4 byte information
+ *			field will be placed if found.
+ *
+ * Return value:
+ *	1 if information field found, 0 if not found.
+ **/
+int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
+			    u64 * info_out)
+{
+	int j;
+	const u8 * ucp;
+	u64 ull;
+
+	if (sb_len < 7)
+		return 0;
+	switch (sense_buffer[0] & 0x7f) {
+	case 0x70:
+	case 0x71:
+		if (sense_buffer[0] & 0x80) {
+			*info_out = (sense_buffer[3] << 24) +
+				    (sense_buffer[4] << 16) +
+				    (sense_buffer[5] << 8) + sense_buffer[6];
+			return 1;
+		} else
+			return 0;
+	case 0x72:
+	case 0x73:
+		ucp = scsi_sense_desc_find(sense_buffer, sb_len,
+					   0 /* info desc */);
+		if (ucp && (0xa == ucp[1])) {
+			ull = 0;
+			for (j = 0; j < 8; ++j) {
+				if (j > 0)
+					ull <<= 8;
+				ull |= ucp[4 + j];
+			}
+			*info_out = ull;
+			return 1;
+		} else
+			return 0;
+	default:
+		return 0;
+	}
+}
+EXPORT_SYMBOL(scsi_get_sense_info_fld);
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 38f165070c94..4713fb936984 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -498,19 +498,17 @@ void scsi_run_host_queues(struct Scsi_Host *shost)
 /*
  * Function:    scsi_end_request()
  *
- * Purpose:     Post-processing of completed commands called from interrupt
- *              handler or a bottom-half handler.
+ * Purpose:     Post-processing of completed commands (usually invoked at end
+ *		of upper level post-processing and scsi_io_completion).
  *
  * Arguments:   cmd	 - command that is complete.
- *              uptodate - 1 if I/O indicates success, 0 for I/O error.
- *              sectors  - number of sectors we want to mark.
+ *              uptodate - 1 if I/O indicates success, <= 0 for I/O error.
+ *              bytes    - number of bytes of completed I/O
  *		requeue  - indicates whether we should requeue leftovers.
- *		frequeue - indicates that if we release the command block
- *			   that the queue request function should be called.
  *
  * Lock status: Assumed that lock is not held upon entry.
  *
- * Returns:     Nothing
+ * Returns:     cmd if requeue done or required, NULL otherwise
  *
  * Notes:       This is called for block device requests in order to
  *              mark some number of sectors as complete.
@@ -694,8 +692,9 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 	int this_count = cmd->bufflen;
 	request_queue_t *q = cmd->device->request_queue;
 	struct request *req = cmd->request;
-	int clear_errors = 1;
 	struct scsi_sense_hdr sshdr;
+	int sense_valid = 0;
+	int sense_deferred = 0;
 
 	/*
 	 * Free up any indirection buffers we allocated for DMA purposes. 
@@ -714,11 +713,15 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 		kfree(cmd->buffer);
 	}
 
+	if (result) {
+		sense_valid = scsi_command_normalize_sense(cmd, &sshdr);
+		if (sense_valid)
+			sense_deferred = scsi_sense_is_deferred(&sshdr);
+	}
 	if (blk_pc_request(req)) { /* SG_IO ioctl from block level */
 		req->errors = result;
 		if (result) {
-			clear_errors = 0;
-			if (scsi_command_normalize_sense(cmd, &sshdr)) {
+			if (sense_valid) {
 				/*
 				 * SG_IO wants current and deferred errors
 				 */
@@ -742,6 +745,11 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 	cmd->request_buffer = NULL;
 	cmd->request_bufflen = 0;
 
+	if (blk_pc_request(req)) { /* SG_IO ioctl from block level */
+		scsi_end_request(cmd, 1, good_bytes, 0);
+		return;
+	}
+
 	/*
 	 * Next deal with any sectors which we were able to correctly
 	 * handle.
@@ -751,8 +759,7 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 					      req->nr_sectors, good_bytes));
 		SCSI_LOG_HLCOMPLETE(1, printk("use_sg is %d\n", cmd->use_sg));
 
-		if (clear_errors)
-			req->errors = 0;
+		req->errors = 0;
 		/*
 		 * If multiple sectors are requested in one buffer, then
 		 * they will have been finished off by the first command.
@@ -779,52 +786,37 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 	 * sense buffer.  We can extract information from this, so we
 	 * can choose a block to remap, etc.
 	 */
-	if (driver_byte(result) != 0) {
-		if (scsi_command_normalize_sense(cmd, &sshdr) &&
-				!scsi_sense_is_deferred(&sshdr)) {
-			/*
-			 * If the device is in the process of becoming ready,
-			 * retry.
-			 */
-			if (sshdr.asc == 0x04 && sshdr.ascq == 0x01) {
+	if (sense_valid && !sense_deferred) {
+		switch (sshdr.sense_key) {
+		case UNIT_ATTENTION:
+			if (cmd->device->removable) {
+				/* detected disc change.  set a bit 
+				 * and quietly refuse further access.
+				 */
+				cmd->device->changed = 1;
+				cmd = scsi_end_request(cmd, 0,
+						this_count, 1);
+				return;
+			} else {
+				/*
+				* Must have been a power glitch, or a
+				* bus reset.  Could not have been a
+				* media change, so we just retry the
+				* request and see what happens.  
+				*/
 				scsi_requeue_command(q, cmd);
 				return;
 			}
-			if (sshdr.sense_key == UNIT_ATTENTION) {
-				if (cmd->device->removable) {
-					/* detected disc change.  set a bit 
-					 * and quietly refuse further access.
-		 			 */
-					cmd->device->changed = 1;
-					cmd = scsi_end_request(cmd, 0,
-							this_count, 1);
-					return;
-				} else {
-					/*
-				 	* Must have been a power glitch, or a
-				 	* bus reset.  Could not have been a
-				 	* media change, so we just retry the
-				 	* request and see what happens.  
-				 	*/
-					scsi_requeue_command(q, cmd);
-					return;
-				}
-			}
-		}
-		/*
-		 * If we had an ILLEGAL REQUEST returned, then we may have
-		 * performed an unsupported command.  The only thing this
-		 * should be would be a ten byte read where only a six byte
-		 * read was supported.  Also, on a system where READ CAPACITY
-		 * failed, we may have read past the end of the disk.
-		 */
-
-		/*
-		 * XXX: Following is probably broken since deferred errors
-		 *	fall through [dpg 20040827]
-		 */
-		switch (sshdr.sense_key) {
+			break;
 		case ILLEGAL_REQUEST:
+			/*
+		 	* If we had an ILLEGAL REQUEST returned, then we may
+		 	* have performed an unsupported command.  The only
+		 	* thing this should be would be a ten byte read where
+			* only a six byte read was supported.  Also, on a
+			* system where READ CAPACITY failed, we may have read
+			* past the end of the disk.
+		 	*/
 			if (cmd->device->use_10_for_rw &&
 			    (cmd->cmnd[0] == READ_10 ||
 			     cmd->cmnd[0] == WRITE_10)) {
@@ -841,6 +833,14 @@ void scsi_io_completion(struct scsi_cmnd *cmd, unsigned int good_bytes,
 			}
 			break;
 		case NOT_READY:
+			/*
+			 * If the device is in the process of becoming ready,
+			 * retry.
+			 */
+			if (sshdr.asc == 0x04 && sshdr.ascq == 0x01) {
+				scsi_requeue_command(q, cmd);
+				return;
+			}
 			printk(KERN_INFO "Device %s not ready.\n",
 			       req->rq_disk ? req->rq_disk->disk_name : "");
 			cmd = scsi_end_request(cmd, 0, this_count, 1);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index adedf73660a5..aca3b39fe710 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -146,7 +146,7 @@ extern int scsi_sysfs_add_sdev(struct scsi_device *);
 extern int scsi_sysfs_add_host(struct Scsi_Host *);
 extern int scsi_sysfs_register(void);
 extern void scsi_sysfs_unregister(void);
-extern int scsi_sysfs_device_initialize(struct scsi_device *);
+extern void scsi_sysfs_device_initialize(struct scsi_device *);
 extern int scsi_sysfs_target_initialize(struct scsi_device *);
 extern struct scsi_transport_template blank_transport_template;
 
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index de2c552c1607..98e92ed900cc 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -254,10 +254,7 @@ static struct scsi_device *scsi_alloc_sdev(struct Scsi_Host *shost,
 	sdev->request_queue->queuedata = sdev;
 	scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
 
-	if (shost->transportt->device_setup) {
-		if (shost->transportt->device_setup(sdev))
-			goto out_free_queue;
-	}
+	scsi_sysfs_device_initialize(sdev);
 
 	if (shost->hostt->slave_alloc) {
 		ret = shost->hostt->slave_alloc(sdev);
@@ -272,10 +269,6 @@ static struct scsi_device *scsi_alloc_sdev(struct Scsi_Host *shost,
 		}
 	}
 
-	if (scsi_sysfs_device_initialize(sdev) != 0)
-		goto out_cleanup_slave;
-
-
 	/* NOTE: this target initialisation code depends critically on
 	 * lun scanning being sequential. */
 	if (scsi_sysfs_target_initialize(sdev))
@@ -288,13 +281,11 @@ out_remove_siblings:
 	list_del(&sdev->siblings);
 	list_del(&sdev->same_target_siblings);
 	spin_unlock_irqrestore(shost->host_lock, flags);
-out_cleanup_slave:
+
 	if (shost->hostt->slave_destroy)
 		shost->hostt->slave_destroy(sdev);
 out_device_destroy:
-	if (shost->transportt->device_destroy)
-		shost->transportt->device_destroy(sdev);
-out_free_queue:
+	transport_destroy_device(&sdev->sdev_gendev);
 	scsi_free_queue(sdev->request_queue);
 out_free_dev:
 	kfree(sdev);
@@ -629,8 +620,7 @@ static int scsi_add_lun(struct scsi_device *sdev, char *inq_result, int *bflags)
 	if (*bflags & BLIST_NOT_LOCKABLE)
 		sdev->lockable = 0;
 
-	if (sdev->host->transportt->device_configure)
-		sdev->host->transportt->device_configure(sdev);
+	transport_configure_device(&sdev->sdev_gendev);
 
 	if (sdev->host->hostt->slave_configure)
 		sdev->host->hostt->slave_configure(sdev);
@@ -749,8 +739,7 @@ static int scsi_probe_and_add_lun(struct Scsi_Host *host,
 	} else {
 		if (sdev->host->hostt->slave_destroy)
 			sdev->host->hostt->slave_destroy(sdev);
-		if (sdev->host->transportt->device_destroy)
-			sdev->host->transportt->device_destroy(sdev);
+		transport_destroy_device(&sdev->sdev_gendev);
 		put_device(&sdev->sdev_gendev);
 	}
  out:
@@ -1330,8 +1319,7 @@ void scsi_free_host_dev(struct scsi_device *sdev)
 
 	if (sdev->host->hostt->slave_destroy)
 		sdev->host->hostt->slave_destroy(sdev);
-	if (sdev->host->transportt->device_destroy)
-		sdev->host->transportt->device_destroy(sdev);
+	transport_destroy_device(&sdev->sdev_gendev);
 	put_device(&sdev->sdev_gendev);
 }
 EXPORT_SYMBOL(scsi_free_host_dev);
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 1fc2962ee10e..11a46f83070d 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -170,14 +170,12 @@ void scsi_device_dev_release(struct device *dev)
 
 	if (delete) {
 		struct scsi_target *starget = to_scsi_target(parent);
-		struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
 		if (!starget->create) {
-			if (shost->transportt->target_destroy)
-				shost->transportt->target_destroy(starget);
+			transport_remove_device(&starget->dev);
 			device_del(parent);
-			if (starget->transport_classdev.class)
-				class_device_unregister(&starget->transport_classdev);
 		}
+		transport_destroy_device(&starget->dev);
+
 		put_device(parent);
 	}
 	if (sdev->request_queue)
@@ -553,7 +551,6 @@ static void scsi_target_dev_release(struct device *dev)
  **/
 int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 {
-	struct class_device_attribute **attrs;
 	struct scsi_target *starget = sdev->sdev_target;
 	struct Scsi_Host *shost = sdev->host;
 	int error, i, create;
@@ -570,31 +567,7 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 			printk(KERN_ERR "Target device_add failed\n");
 			return error;
 		}
-		if (starget->transport_classdev.class) {
-			int i;
-			struct class_device_attribute **attrs =
-				sdev->host->transportt->target_attrs;
-
-			error = class_device_add(&starget->transport_classdev);
-			if (error) {
-				dev_printk(KERN_ERR, &starget->dev,
-					   "Target transport add failed\n");
-				return error;
-			}
-
-			/* take a reference for the transport_classdev; this
-			 * is released by the transport_class .release */
-			get_device(&starget->dev);
-			for (i = 0; attrs[i]; i++) {
-				error = class_device_create_file(&starget->transport_classdev,
-								 attrs[i]);
-				if (error) {
-					dev_printk(KERN_ERR, &starget->dev,
-						   "Target transport attr add failed\n");
-					return error;
-				}
-			}
-		}
+		transport_add_device(&starget->dev);
 	}
 
 	if ((error = scsi_device_set_state(sdev, SDEV_RUNNING)) != 0)
@@ -606,25 +579,15 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 		printk(KERN_INFO "error 1\n");
 		return error;
 	}
-
 	error = class_device_add(&sdev->sdev_classdev);
 	if (error) {
 		printk(KERN_INFO "error 2\n");
 		goto clean_device;
 	}
+
 	/* take a reference for the sdev_classdev; this is
 	 * released by the sdev_class .release */
 	get_device(&sdev->sdev_gendev);
-	if (sdev->transport_classdev.class) {
-		error = class_device_add(&sdev->transport_classdev);
-		if (error)
-			goto clean_device2;
-		/* take a reference for the transport_classdev; this
-		 * is released by the transport_class .release */
-		get_device(&sdev->sdev_gendev);
-		
-	}
-
 	if (sdev->host->hostt->sdev_attrs) {
 		for (i = 0; sdev->host->hostt->sdev_attrs[i]; i++) {
 			error = attr_add(&sdev->sdev_gendev,
@@ -650,27 +613,16 @@ int scsi_sysfs_add_sdev(struct scsi_device *sdev)
 		}
 	}
 
- 	if (sdev->transport_classdev.class) {
- 		attrs = sdev->host->transportt->device_attrs;
- 		for (i = 0; attrs[i]; i++) {
- 			error = class_device_create_file(&sdev->transport_classdev,
- 							 attrs[i]);
- 			if (error) {
- 				scsi_remove_device(sdev);
-				goto out;
-			}
- 		}
- 	}
-
+	transport_add_device(&sdev->sdev_gendev);
  out:
 	return error;
 
- clean_device2:
 	class_device_del(&sdev->sdev_classdev);
  clean_device:
 	scsi_device_set_state(sdev, SDEV_CANCEL);
 
 	device_del(&sdev->sdev_gendev);
+	transport_destroy_device(&sdev->sdev_gendev);
 	put_device(&sdev->sdev_gendev);
 
 	return error;
@@ -689,14 +641,11 @@ void scsi_remove_device(struct scsi_device *sdev)
 		goto out;
 
 	class_device_unregister(&sdev->sdev_classdev);
-	if (sdev->transport_classdev.class)
-		class_device_unregister(&sdev->transport_classdev);
 	device_del(&sdev->sdev_gendev);
 	scsi_device_set_state(sdev, SDEV_DEL);
 	if (sdev->host->hostt->slave_destroy)
 		sdev->host->hostt->slave_destroy(sdev);
-	if (sdev->host->transportt->device_destroy)
-		sdev->host->transportt->device_destroy(sdev);
+	transport_unregister_device(&sdev->sdev_gendev);
 	put_device(&sdev->sdev_gendev);
 
 out:
@@ -786,41 +735,11 @@ int scsi_sysfs_add_host(struct Scsi_Host *shost)
 		}
 	}
 
-	class_device_initialize(&shost->transport_classdev);
-	shost->transport_classdev.class = shost->transportt->host_class;
-	shost->transport_classdev.dev = &shost->shost_gendev;
-	snprintf(shost->transport_classdev.class_id, BUS_ID_SIZE,
-		 "host%d", shost->host_no);
-
-	if (shost->transport_classdev.class) {
-		struct class_device_attribute **attrs =
-			shost->transportt->host_attrs;
-		error = class_device_add(&shost->transport_classdev);
-		if (error)
-			return error;
-		/* take a reference for the transport_classdev; this
-		 * is released by the transport_class .release */
-		get_device(&shost->shost_gendev);
-		for (i = 0; attrs[i]; i++) {
- 			error = class_device_create_file(&shost->transport_classdev,
- 							 attrs[i]);
- 			if (error)
-				return error;
- 		}
-
-		if (shost->transportt->host_statistics) {
-			error = sysfs_create_group(
-					&shost->transport_classdev.kobj,
-					shost->transportt->host_statistics);
-			if (error)
-				return error;
-		}
- 	}
-
+	transport_register_device(&shost->shost_gendev);
 	return 0;
 }
 
-int scsi_sysfs_device_initialize(struct scsi_device *sdev)
+void scsi_sysfs_device_initialize(struct scsi_device *sdev)
 {
 	device_initialize(&sdev->sdev_gendev);
 	sdev->sdev_gendev.bus = &scsi_bus_type;
@@ -836,14 +755,14 @@ int scsi_sysfs_device_initialize(struct scsi_device *sdev)
 		 "%d:%d:%d:%d", sdev->host->host_no,
 		 sdev->channel, sdev->id, sdev->lun);
 
-	class_device_initialize(&sdev->transport_classdev);
-	sdev->transport_classdev.dev = &sdev->sdev_gendev;
-	sdev->transport_classdev.class = sdev->host->transportt->device_class;
-	snprintf(sdev->transport_classdev.class_id, BUS_ID_SIZE,
-		 "%d:%d:%d:%d", sdev->host->host_no,
-		 sdev->channel, sdev->id, sdev->lun);
-	return 0;
+	transport_setup_device(&sdev->sdev_gendev);
+}
+
+int scsi_is_sdev_device(const struct device *dev)
+{
+	return dev->release == scsi_device_dev_release;
 }
+EXPORT_SYMBOL(scsi_is_sdev_device);
 
 int scsi_sysfs_target_initialize(struct scsi_device *sdev)
 {
@@ -886,12 +805,6 @@ int scsi_sysfs_target_initialize(struct scsi_device *sdev)
 		dev->release = scsi_target_dev_release;
 		sprintf(dev->bus_id, "target%d:%d:%d",
 			shost->host_no, sdev->channel, sdev->id);
-		class_device_initialize(&starget->transport_classdev);
-		starget->transport_classdev.dev = &starget->dev;
-		starget->transport_classdev.class = shost->transportt->target_class;
-		snprintf(starget->transport_classdev.class_id, BUS_ID_SIZE,
-			 "target%d:%d:%d",
-			 shost->host_no, sdev->channel, sdev->id);
 		starget->id = sdev->id;
 		starget->channel = sdev->channel;
 		create = starget->create = 1;
@@ -907,11 +820,17 @@ int scsi_sysfs_target_initialize(struct scsi_device *sdev)
 	sdev->sdev_target = starget;
 	list_add_tail(&sdev->siblings, &shost->__devices);
 	spin_unlock_irqrestore(shost->host_lock, flags);
-	if (create && shost->transportt->target_setup)
-		shost->transportt->target_setup(starget);
+	if (create)
+		transport_setup_device(&starget->dev);
 	return 0;
 }
 
+int scsi_is_target_device(const struct device *dev)
+{
+	return dev->release == scsi_target_dev_release;
+}
+EXPORT_SYMBOL(scsi_is_target_device);
+
 /* A blank transport template that is used in drivers that don't
  * yet implement Transport Attributes */
 struct scsi_transport_template blank_transport_template = { NULL, };
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 1aca210eabd1..3b3cf3ca003b 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -180,8 +180,6 @@ show_fc_fc4s (char *buf, u8 *fc4_list)
 
 
 
-static void transport_class_release(struct class_device *class_dev);
-static void host_class_release(struct class_device *class_dev);
 static void fc_timeout_blocked_host(void *data);
 static void fc_timeout_blocked_tgt(void *data);
 
@@ -207,32 +205,9 @@ struct fc_internal {
 
 #define to_fc_internal(tmpl)	container_of(tmpl, struct fc_internal, t)
 
-struct class fc_transport_class = {
-	.name = "fc_transport",
-	.release = transport_class_release,
-};
-
-struct class fc_host_class = {
-	.name = "fc_host",
-	.release = host_class_release,
-};
-
-static __init int fc_transport_init(void)
-{
-	int error = class_register(&fc_host_class);
-	if (error)
-		return error;
-	return class_register(&fc_transport_class);
-}
-
-static void __exit fc_transport_exit(void)
-{
-	class_unregister(&fc_transport_class);
-	class_unregister(&fc_host_class);
-}
-
-static int fc_setup_starget_transport_attrs(struct scsi_target *starget)
+static int fc_add_target(struct device *dev)
 {
+	struct scsi_target *starget = to_scsi_target(dev);
 	/* 
 	 * Set default values easily detected by the midlayer as
 	 * failure cases.  The scsi lldd is responsible for initializing
@@ -247,15 +222,24 @@ static int fc_setup_starget_transport_attrs(struct scsi_target *starget)
 	return 0;
 }
 
-static void fc_destroy_starget(struct scsi_target *starget)
+static int fc_remove_target(struct device *dev)
 {
+	struct scsi_target *starget = to_scsi_target(dev);
 	/* Stop the target timer */
 	if (cancel_delayed_work(&fc_starget_dev_loss_work(starget)))
 		flush_scheduled_work();
+	return 0;
 }
 
-static int fc_setup_host_transport_attrs(struct Scsi_Host *shost)
+static DECLARE_TRANSPORT_CLASS(fc_transport_class,
+			       "fc_transport",
+			       fc_add_target,
+			       fc_remove_target,
+			       NULL);
+
+static int fc_add_host(struct device *dev)
 {
+	struct Scsi_Host *shost = dev_to_shost(dev);
 	/* 
 	 * Set default values easily detected by the midlayer as
 	 * failure cases.  The scsi lldd is responsible for initializing
@@ -297,26 +281,35 @@ static int fc_setup_host_transport_attrs(struct Scsi_Host *shost)
 	return 0;
 }
 
-static void fc_destroy_host(struct Scsi_Host *shost)
+static int fc_remove_host(struct device *dev)
 {
+	struct Scsi_Host *shost = dev_to_shost(dev);
 	/* Stop the host timer */
 	if (cancel_delayed_work(&fc_host_link_down_work(shost)))
 		flush_scheduled_work();
+	return 0;
 }
 
-static void transport_class_release(struct class_device *class_dev)
+static DECLARE_TRANSPORT_CLASS(fc_host_class,
+			       "fc_host",
+			       fc_add_host,
+			       fc_remove_host,
+			       NULL);
+
+static __init int fc_transport_init(void)
 {
-	struct scsi_target *starget = transport_class_to_starget(class_dev);
-	put_device(&starget->dev);
+	int error = transport_class_register(&fc_host_class);
+	if (error)
+		return error;
+	return transport_class_register(&fc_transport_class);
 }
 
-static void host_class_release(struct class_device *class_dev)
+static void __exit fc_transport_exit(void)
 {
-	struct Scsi_Host *shost = transport_class_to_shost(class_dev);
-	put_device(&shost->shost_gendev);
+	transport_class_unregister(&fc_transport_class);
+	transport_class_unregister(&fc_host_class);
 }
 
-
 /*
  * Remote Port (Target) Attribute Management
  */
@@ -731,6 +724,35 @@ static struct attribute_group fc_statistics_group = {
 	.attrs = fc_statistics_attrs,
 };
 
+static int fc_host_match(struct attribute_container *cont,
+			  struct device *dev)
+{
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_host_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &fc_host_class.class)
+		return 0;
+	return 1;
+}
+
+static int fc_target_match(struct attribute_container *cont,
+			    struct device *dev)
+{
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_target_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev->parent);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &fc_host_class.class)
+		return 0;
+	return 1;
+}
 
 
 struct scsi_transport_template *
@@ -745,16 +767,16 @@ fc_attach_transport(struct fc_function_template *ft)
 
 	memset(i, 0, sizeof(struct fc_internal));
 
-	i->t.target_attrs = &i->starget_attrs[0];
-	i->t.target_class = &fc_transport_class;
-	i->t.target_setup = &fc_setup_starget_transport_attrs;
-	i->t.target_destroy = &fc_destroy_starget;
+	i->t.target_attrs.attrs = &i->starget_attrs[0];
+	i->t.target_attrs.class = &fc_transport_class.class;
+	i->t.target_attrs.match = fc_target_match;
+	attribute_container_register(&i->t.target_attrs);
 	i->t.target_size = sizeof(struct fc_starget_attrs);
 
-	i->t.host_attrs = &i->host_attrs[0];
-	i->t.host_class = &fc_host_class;
-	i->t.host_setup = &fc_setup_host_transport_attrs;
-	i->t.host_destroy = &fc_destroy_host;
+	i->t.host_attrs.attrs = &i->host_attrs[0];
+	i->t.host_attrs.class = &fc_host_class.class;
+	i->t.host_attrs.match = fc_host_match;
+	attribute_container_register(&i->t.host_attrs);
 	i->t.host_size = sizeof(struct fc_host_attrs);
 
 	if (ft->get_fc_host_stats)
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 7e1bd98391ce..f5f63dc2af4c 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -40,28 +40,17 @@ struct iscsi_internal {
 
 #define to_iscsi_internal(tmpl) container_of(tmpl, struct iscsi_internal, t)
 
-static void iscsi_transport_class_release(struct class_device *class_dev)
-{
-	struct scsi_target *starget = transport_class_to_starget(class_dev);
-	put_device(&starget->dev);
-}
-
-struct class iscsi_transport_class = {
-	.name = "iscsi_transport_class",
-	.release = iscsi_transport_class_release,
-};
-
-static void iscsi_host_class_release(struct class_device *class_dev)
-{
-	struct Scsi_Host *shost = transport_class_to_shost(class_dev);
-	put_device(&shost->shost_gendev);
-}
-
-struct class iscsi_host_class = {
-	.name = "iscsi_host",
-	.release = iscsi_host_class_release,
-};
-
+static DECLARE_TRANSPORT_CLASS(iscsi_transport_class,
+			       "iscsi_transport",
+			       NULL,
+			       NULL,
+			       NULL);
+
+static DECLARE_TRANSPORT_CLASS(iscsi_host_class,
+			       "iscsi_host",
+			       NULL,
+			       NULL,
+			       NULL);
 /*
  * iSCSI target and session attrs
  */
@@ -265,6 +254,36 @@ iscsi_host_rd_str_attr(initiator_alias);
 		count++;						\
 	}
 
+static int iscsi_host_match(struct attribute_container *cont,
+			  struct device *dev)
+{
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_host_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &iscsi_host_class.class)
+		return 0;
+	return 1;
+}
+
+static int iscsi_target_match(struct attribute_container *cont,
+			    struct device *dev)
+{
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_target_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev->parent);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &iscsi_host_class.class)
+		return 0;
+	return 1;
+}
+
 struct scsi_transport_template *
 iscsi_attach_transport(struct iscsi_function_template *fnt)
 {
@@ -278,9 +297,10 @@ iscsi_attach_transport(struct iscsi_function_template *fnt)
 	memset(i, 0, sizeof(struct iscsi_internal));
 	i->fnt = fnt;
 
-	i->t.target_attrs = &i->session_attrs[0];
-	i->t.target_class = &iscsi_transport_class;
-	i->t.target_setup = NULL;
+	i->t.target_attrs.attrs = &i->session_attrs[0];
+	i->t.target_attrs.class = &iscsi_transport_class.class;
+	i->t.target_attrs.match = iscsi_target_match;
+	attribute_container_register(&i->t.target_attrs);
 	i->t.target_size = sizeof(struct iscsi_class_session);
 
 	SETUP_SESSION_RD_ATTR(tsih);
@@ -307,9 +327,10 @@ iscsi_attach_transport(struct iscsi_function_template *fnt)
 	BUG_ON(count > ISCSI_SESSION_ATTRS);
 	i->session_attrs[count] = NULL;
 
-	i->t.host_attrs = &i->host_attrs[0];
-	i->t.host_class = &iscsi_host_class;
-	i->t.host_setup = NULL;
+	i->t.host_attrs.attrs = &i->host_attrs[0];
+	i->t.host_attrs.class = &iscsi_host_class.class;
+	i->t.host_attrs.match = iscsi_host_match;
+	attribute_container_register(&i->t.host_attrs);
 	i->t.host_size = 0;
 
 	count = 0;
@@ -334,17 +355,17 @@ EXPORT_SYMBOL(iscsi_release_transport);
 
 static __init int iscsi_transport_init(void)
 {
-	int err = class_register(&iscsi_transport_class);
+	int err = transport_class_register(&iscsi_transport_class);
 
 	if (err)
 		return err;
-	return class_register(&iscsi_host_class);
+	return transport_class_register(&iscsi_host_class);
 }
 
 static void __exit iscsi_transport_exit(void)
 {
-	class_unregister(&iscsi_host_class);
-	class_unregister(&iscsi_transport_class);
+	transport_class_unregister(&iscsi_host_class);
+	transport_class_unregister(&iscsi_transport_class);
 }
 
 module_init(iscsi_transport_init);
diff --git a/drivers/scsi/scsi_transport_spi.c b/drivers/scsi/scsi_transport_spi.c
index d8bdde36fe44..a5fd1826e29a 100644
--- a/drivers/scsi/scsi_transport_spi.c
+++ b/drivers/scsi/scsi_transport_spi.c
@@ -2,6 +2,7 @@
  *  Parallel SCSI (SPI) transport specific attributes exported to sysfs.
  *
  *  Copyright (c) 2003 Silicon Graphics, Inc.  All rights reserved.
+ *  Copyright (c) 2004, 2005 James Bottomley <James.Bottomley@SteelEye.com>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -37,9 +38,6 @@
 
 #define SPI_PRINTK(x, l, f, a...)	dev_printk(l, &(x)->dev, f , ##a)
 
-static void transport_class_release(struct class_device *class_dev);
-static void host_class_release(struct class_device *class_dev);
-
 #define SPI_NUM_ATTRS 10	/* increase this if you add attributes */
 #define SPI_OTHER_ATTRS 1	/* Increase this if you add "always
 				 * on" attributes */
@@ -119,40 +117,39 @@ static inline enum spi_signal_type spi_signal_to_value(const char *name)
 	return SPI_SIGNAL_UNKNOWN;
 }
 
+static int spi_host_setup(struct device *dev)
+{
+	struct Scsi_Host *shost = dev_to_shost(dev);
 
-struct class spi_transport_class = {
-	.name = "spi_transport",
-	.release = transport_class_release,
-};
-
-struct class spi_host_class = {
-	.name = "spi_host",
-	.release = host_class_release,
-};
+	spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
 
-static __init int spi_transport_init(void)
-{
-	int error = class_register(&spi_host_class);
-	if (error)
-		return error;
-	return class_register(&spi_transport_class);
+	return 0;
 }
 
-static void __exit spi_transport_exit(void)
-{
-	class_unregister(&spi_transport_class);
-	class_unregister(&spi_host_class);
-}
+static DECLARE_TRANSPORT_CLASS(spi_host_class,
+			       "spi_host",
+			       spi_host_setup,
+			       NULL,
+			       NULL);
 
-static int spi_setup_host_attrs(struct Scsi_Host *shost)
+static int spi_host_match(struct attribute_container *cont,
+			  struct device *dev)
 {
-	spi_signalling(shost) = SPI_SIGNAL_UNKNOWN;
+	struct Scsi_Host *shost;
 
-	return 0;
+	if (!scsi_is_host_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &spi_host_class.class)
+		return 0;
+	return 1;
 }
 
-static int spi_configure_device(struct scsi_device *sdev)
+static int spi_device_configure(struct device *dev)
 {
+	struct scsi_device *sdev = to_scsi_device(dev);
 	struct scsi_target *starget = sdev->sdev_target;
 
 	/* Populate the target capability fields with the values
@@ -168,8 +165,10 @@ static int spi_configure_device(struct scsi_device *sdev)
 	return 0;
 }
 
-static int spi_setup_transport_attrs(struct scsi_target *starget)
+static int spi_setup_transport_attrs(struct device *dev)
 {
+	struct scsi_target *starget = to_scsi_target(dev);
+
 	spi_period(starget) = -1;	/* illegal value */
 	spi_offset(starget) = 0;	/* async */
 	spi_width(starget) = 0;	/* narrow */
@@ -187,18 +186,6 @@ static int spi_setup_transport_attrs(struct scsi_target *starget)
 	return 0;
 }
 
-static void transport_class_release(struct class_device *class_dev)
-{
-	struct scsi_target *starget = transport_class_to_starget(class_dev);
-	put_device(&starget->dev);
-}
-
-static void host_class_release(struct class_device *class_dev)
-{
-	struct Scsi_Host *shost = transport_class_to_shost(class_dev);
-	put_device(&shost->shost_gendev);
-}
-
 #define spi_transport_show_function(field, format_string)		\
 									\
 static ssize_t								\
@@ -823,6 +810,48 @@ EXPORT_SYMBOL(spi_schedule_dv_device);
 	i->host_attrs[count] = &i->private_host_attrs[count];		\
 	count++
 
+static int spi_device_match(struct attribute_container *cont,
+			    struct device *dev)
+{
+	struct scsi_device *sdev;
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_sdev_device(dev))
+		return 0;
+
+	sdev = to_scsi_device(dev);
+	shost = sdev->host;
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &spi_host_class.class)
+		return 0;
+	return 1;
+}
+
+static int spi_target_match(struct attribute_container *cont,
+			    struct device *dev)
+{
+	struct Scsi_Host *shost;
+
+	if (!scsi_is_target_device(dev))
+		return 0;
+
+	shost = dev_to_shost(dev->parent);
+	if (!shost->transportt  || shost->transportt->host_attrs.class
+	    != &spi_host_class.class)
+		return 0;
+	return 1;
+}
+
+static DECLARE_TRANSPORT_CLASS(spi_transport_class,
+			       "spi_transport",
+			       spi_setup_transport_attrs,
+			       NULL,
+			       NULL);
+
+static DECLARE_ANON_TRANSPORT_CLASS(spi_device_class,
+				    spi_device_match,
+				    spi_device_configure);
+
 struct scsi_transport_template *
 spi_attach_transport(struct spi_function_template *ft)
 {
@@ -835,14 +864,15 @@ spi_attach_transport(struct spi_function_template *ft)
 	memset(i, 0, sizeof(struct spi_internal));
 
 
-	i->t.target_attrs = &i->attrs[0];
-	i->t.target_class = &spi_transport_class;
-	i->t.target_setup = &spi_setup_transport_attrs;
-	i->t.device_configure = &spi_configure_device;
+	i->t.target_attrs.class = &spi_transport_class.class;
+	i->t.target_attrs.attrs = &i->attrs[0];
+	i->t.target_attrs.match = spi_target_match;
+	attribute_container_register(&i->t.target_attrs);
 	i->t.target_size = sizeof(struct spi_transport_attrs);
-	i->t.host_attrs = &i->host_attrs[0];
-	i->t.host_class = &spi_host_class;
-	i->t.host_setup = &spi_setup_host_attrs;
+	i->t.host_attrs.class = &spi_host_class.class;
+	i->t.host_attrs.attrs = &i->host_attrs[0];
+	i->t.host_attrs.match = spi_host_match;
+	attribute_container_register(&i->t.host_attrs);
 	i->t.host_size = sizeof(struct spi_host_attrs);
 	i->f = ft;
 
@@ -884,6 +914,21 @@ void spi_release_transport(struct scsi_transport_template *t)
 }
 EXPORT_SYMBOL(spi_release_transport);
 
+static __init int spi_transport_init(void)
+{
+	int error = transport_class_register(&spi_transport_class);
+	if (error)
+		return error;
+	error = anon_transport_class_register(&spi_device_class);
+	return transport_class_register(&spi_host_class);
+}
+
+static void __exit spi_transport_exit(void)
+{
+	transport_class_unregister(&spi_transport_class);
+	anon_transport_class_unregister(&spi_device_class);
+	transport_class_unregister(&spi_host_class);
+}
 
 MODULE_AUTHOR("Martin Hicks");
 MODULE_DESCRIPTION("SPI Transport Attributes");
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 252018b1c6a9..523d68ad047b 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -87,6 +87,7 @@
  * Number of allowed retries
  */
 #define SD_MAX_RETRIES		5
+#define SD_PASSTHROUGH_RETRIES	1
 
 static void scsi_disk_release(struct kref *kref);
 
@@ -197,9 +198,11 @@ static struct scsi_disk *scsi_disk_get(struct gendisk *disk)
 
 static void scsi_disk_put(struct scsi_disk *sdkp)
 {
+	struct scsi_device *sdev = sdkp->device;
+
 	down(&sd_ref_sem);
 	kref_put(&sdkp->kref, scsi_disk_release);
-	scsi_device_put(sdkp->device);
+	scsi_device_put(sdev);
 	up(&sd_ref_sem);
 }
 
@@ -217,15 +220,14 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 	struct gendisk *disk;
 	sector_t block;
 	struct scsi_device *sdp = SCpnt->device;
+	struct request *rq = SCpnt->request;
 
 	timeout = sdp->timeout;
 
 	/*
-	 * these are already setup, just copy cdb basically
+	 * SG_IO from block layer already setup, just copy cdb basically
 	 */
-	if (SCpnt->request->flags & REQ_BLOCK_PC) {
-		struct request *rq = SCpnt->request;
-
+	if (blk_pc_request(rq)) {
 		if (sizeof(rq->cmd) > sizeof(SCpnt->cmnd))
 			return 0;
 
@@ -242,26 +244,28 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 			timeout = rq->timeout;
 
 		SCpnt->transfersize = rq->data_len;
+		SCpnt->allowed = SD_PASSTHROUGH_RETRIES;
 		goto queue;
 	}
 
 	/*
 	 * we only do REQ_CMD and REQ_BLOCK_PC
 	 */
-	if (!(SCpnt->request->flags & REQ_CMD))
+	if (!blk_fs_request(rq))
 		return 0;
 
-	disk = SCpnt->request->rq_disk;
-	block = SCpnt->request->sector;
+	disk = rq->rq_disk;
+	block = rq->sector;
 	this_count = SCpnt->request_bufflen >> 9;
 
 	SCSI_LOG_HLQUEUE(1, printk("sd_init_command: disk=%s, block=%llu, "
-			    "count=%d\n", disk->disk_name, (unsigned long long)block, this_count));
+			    "count=%d\n", disk->disk_name,
+			 (unsigned long long)block, this_count));
 
 	if (!sdp || !scsi_device_online(sdp) ||
- 	    block + SCpnt->request->nr_sectors > get_capacity(disk)) {
+ 	    block + rq->nr_sectors > get_capacity(disk)) {
 		SCSI_LOG_HLQUEUE(2, printk("Finishing %ld sectors\n", 
-				 SCpnt->request->nr_sectors));
+				 rq->nr_sectors));
 		SCSI_LOG_HLQUEUE(2, printk("Retry with 0x%p\n", SCpnt));
 		return 0;
 	}
@@ -289,7 +293,7 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 	 * for this.
 	 */
 	if (sdp->sector_size == 1024) {
-		if ((block & 1) || (SCpnt->request->nr_sectors & 1)) {
+		if ((block & 1) || (rq->nr_sectors & 1)) {
 			printk(KERN_ERR "sd: Bad block number requested");
 			return 0;
 		} else {
@@ -298,7 +302,7 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 		}
 	}
 	if (sdp->sector_size == 2048) {
-		if ((block & 3) || (SCpnt->request->nr_sectors & 3)) {
+		if ((block & 3) || (rq->nr_sectors & 3)) {
 			printk(KERN_ERR "sd: Bad block number requested");
 			return 0;
 		} else {
@@ -307,7 +311,7 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 		}
 	}
 	if (sdp->sector_size == 4096) {
-		if ((block & 7) || (SCpnt->request->nr_sectors & 7)) {
+		if ((block & 7) || (rq->nr_sectors & 7)) {
 			printk(KERN_ERR "sd: Bad block number requested");
 			return 0;
 		} else {
@@ -315,25 +319,24 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 			this_count = this_count >> 3;
 		}
 	}
-	if (rq_data_dir(SCpnt->request) == WRITE) {
+	if (rq_data_dir(rq) == WRITE) {
 		if (!sdp->writeable) {
 			return 0;
 		}
 		SCpnt->cmnd[0] = WRITE_6;
 		SCpnt->sc_data_direction = DMA_TO_DEVICE;
-	} else if (rq_data_dir(SCpnt->request) == READ) {
+	} else if (rq_data_dir(rq) == READ) {
 		SCpnt->cmnd[0] = READ_6;
 		SCpnt->sc_data_direction = DMA_FROM_DEVICE;
 	} else {
-		printk(KERN_ERR "sd: Unknown command %lx\n", 
-		       SCpnt->request->flags);
-/* overkill 	panic("Unknown sd command %lx\n", SCpnt->request->flags); */
+		printk(KERN_ERR "sd: Unknown command %lx\n", rq->flags);
+/* overkill 	panic("Unknown sd command %lx\n", rq->flags); */
 		return 0;
 	}
 
 	SCSI_LOG_HLQUEUE(2, printk("%s : %s %d/%ld 512 byte blocks.\n", 
-		disk->disk_name, (rq_data_dir(SCpnt->request) == WRITE) ? 
-		"writing" : "reading", this_count, SCpnt->request->nr_sectors));
+		disk->disk_name, (rq_data_dir(rq) == WRITE) ? 
+		"writing" : "reading", this_count, rq->nr_sectors));
 
 	SCpnt->cmnd[1] = 0;
 	
@@ -385,9 +388,9 @@ static int sd_init_command(struct scsi_cmnd * SCpnt)
 	 */
 	SCpnt->transfersize = sdp->sector_size;
 	SCpnt->underflow = this_count << 9;
+	SCpnt->allowed = SD_MAX_RETRIES;
 
 queue:
-	SCpnt->allowed = SD_MAX_RETRIES;
 	SCpnt->timeout_per_command = timeout;
 
 	/*
@@ -760,15 +763,26 @@ static void sd_rw_intr(struct scsi_cmnd * SCpnt)
 	int this_count = SCpnt->bufflen;
 	int good_bytes = (result == 0 ? this_count : 0);
 	sector_t block_sectors = 1;
+	u64 first_err_block;
 	sector_t error_sector;
+	struct scsi_sense_hdr sshdr;
+	int sense_valid = 0;
+	int sense_deferred = 0;
+	int info_valid;
+
+	if (result) {
+		sense_valid = scsi_command_normalize_sense(SCpnt, &sshdr);
+		if (sense_valid)
+			sense_deferred = scsi_sense_is_deferred(&sshdr);
+	}
+
 #ifdef CONFIG_SCSI_LOGGING
 	SCSI_LOG_HLCOMPLETE(1, printk("sd_rw_intr: %s: res=0x%x\n", 
 				SCpnt->request->rq_disk->disk_name, result));
-	if (0 != result) {
-		SCSI_LOG_HLCOMPLETE(1, printk("sd_rw_intr: sb[0,2,asc,ascq]"
-				"=%x,%x,%x,%x\n", SCpnt->sense_buffer[0],
-			SCpnt->sense_buffer[2], SCpnt->sense_buffer[12],
-			SCpnt->sense_buffer[13]));
+	if (sense_valid) {
+		SCSI_LOG_HLCOMPLETE(1, printk("sd_rw_intr: sb[respc,sk,asc,"
+				"ascq]=%x,%x,%x,%x\n", sshdr.response_code,
+				sshdr.sense_key, sshdr.asc, sshdr.ascq));
 	}
 #endif
 	/*
@@ -777,19 +791,27 @@ static void sd_rw_intr(struct scsi_cmnd * SCpnt)
 	   unnecessary additional work such as memcpy's that could be avoided.
 	 */
 
-	/* An error occurred */
-	if (driver_byte(result) != 0 && 	/* An error occurred */
-	    (SCpnt->sense_buffer[0] & 0x7f) == 0x70) { /* Sense current */
-		switch (SCpnt->sense_buffer[2]) {
+	/* 
+	 * If SG_IO from block layer then set good_bytes to stop retries;
+	 * else if errors, check them, and if necessary prepare for
+	 * (partial) retries.
+	 */
+	if (blk_pc_request(SCpnt->request))
+		good_bytes = this_count;
+	else if (driver_byte(result) != 0 &&
+		 sense_valid && !sense_deferred) {
+		switch (sshdr.sense_key) {
 		case MEDIUM_ERROR:
-			if (!(SCpnt->sense_buffer[0] & 0x80))
-				break;
 			if (!blk_fs_request(SCpnt->request))
 				break;
-			error_sector = (SCpnt->sense_buffer[3] << 24) |
-			(SCpnt->sense_buffer[4] << 16) |
-			(SCpnt->sense_buffer[5] << 8) |
-			SCpnt->sense_buffer[6];
+			info_valid = scsi_get_sense_info_fld(
+				SCpnt->sense_buffer, SCSI_SENSE_BUFFERSIZE,
+				&first_err_block);
+			/*
+			 * May want to warn and skip if following cast results
+			 * in actual truncation (if sector_t < 64 bits)
+			 */
+			error_sector = (sector_t)first_err_block;
 			if (SCpnt->request->bio != NULL)
 				block_sectors = bio_sectors(SCpnt->request->bio);
 			switch (SCpnt->device->sector_size) {
@@ -829,7 +851,7 @@ static void sd_rw_intr(struct scsi_cmnd * SCpnt)
 			 */
 			scsi_print_sense("sd", SCpnt);
 			SCpnt->result = 0;
-			SCpnt->sense_buffer[0] = 0x0;
+			memset(SCpnt->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 			good_bytes = this_count;
 			break;
 
@@ -858,16 +880,20 @@ static void sd_rw_intr(struct scsi_cmnd * SCpnt)
 
 static int media_not_present(struct scsi_disk *sdkp, struct scsi_request *srp)
 {
+	struct scsi_sense_hdr sshdr;
+
 	if (!srp->sr_result)
 		return 0;
 	if (!(driver_byte(srp->sr_result) & DRIVER_SENSE))
 		return 0;
-	if (srp->sr_sense_buffer[2] != NOT_READY &&
-	    srp->sr_sense_buffer[2] != UNIT_ATTENTION)
-	    	return 0;
-	if (srp->sr_sense_buffer[12] != 0x3A) /* medium not present */
-		return 0;
-
+	/* not invoked for commands that could return deferred errors */
+	if (scsi_request_normalize_sense(srp, &sshdr)) {
+		if (sshdr.sense_key != NOT_READY &&
+		    sshdr.sense_key != UNIT_ATTENTION)
+			return 0;
+		if (sshdr.asc != 0x3A) /* medium not present */
+			return 0;
+	}
 	set_media_not_present(sdkp);
 	return 1;
 }
@@ -882,6 +908,8 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 	unsigned long spintime_value = 0;
 	int retries, spintime;
 	unsigned int the_result;
+	struct scsi_sense_hdr sshdr;
+	int sense_valid = 0;
 
 	spintime = 0;
 
@@ -895,19 +923,22 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 			memset((void *) &cmd[1], 0, 9);
 
 			SRpnt->sr_cmd_len = 0;
-			SRpnt->sr_sense_buffer[0] = 0;
-			SRpnt->sr_sense_buffer[2] = 0;
+			memset(SRpnt->sr_sense_buffer, 0,
+			       SCSI_SENSE_BUFFERSIZE);
 			SRpnt->sr_data_direction = DMA_NONE;
 
 			scsi_wait_req (SRpnt, (void *) cmd, (void *) buffer,
 				       0/*512*/, SD_TIMEOUT, SD_MAX_RETRIES);
 
 			the_result = SRpnt->sr_result;
+			if (the_result)
+				sense_valid = scsi_request_normalize_sense(
+							SRpnt, &sshdr);
 			retries++;
 		} while (retries < 3 && 
 			 (!scsi_status_is_good(the_result) ||
 			  ((driver_byte(the_result) & DRIVER_SENSE) &&
-			   SRpnt->sr_sense_buffer[2] == UNIT_ATTENTION)));
+			  sense_valid && sshdr.sense_key == UNIT_ATTENTION)));
 
 		/*
 		 * If the drive has indicated to us that it doesn't have
@@ -921,7 +952,8 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 			/* no sense, TUR either succeeded or failed
 			 * with a status error */
 			if(!spintime && !scsi_status_is_good(the_result))
-				printk(KERN_NOTICE "%s: Unit Not Ready, error = 0x%x\n", diskname, the_result);
+				printk(KERN_NOTICE "%s: Unit Not Ready, "
+				       "error = 0x%x\n", diskname, the_result);
 			break;
 		}
 					
@@ -936,15 +968,15 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 		 * If manual intervention is required, or this is an
 		 * absent USB storage device, a spinup is meaningless.
 		 */
-		if (SRpnt->sr_sense_buffer[2] == NOT_READY &&
-		    SRpnt->sr_sense_buffer[12] == 4 /* not ready */ &&
-		    SRpnt->sr_sense_buffer[13] == 3) {
+		if (sense_valid &&
+		    sshdr.sense_key == NOT_READY &&
+		    sshdr.asc == 4 && sshdr.ascq == 3) {
 			break;		/* manual intervention required */
 
 		/*
 		 * Issue command to spin up drive when not ready
 		 */
-		} else if (SRpnt->sr_sense_buffer[2] == NOT_READY) {
+		} else if (sense_valid && sshdr.sense_key == NOT_READY) {
 			if (!spintime) {
 				printk(KERN_NOTICE "%s: Spinning up disk...",
 				       diskname);
@@ -953,8 +985,8 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 				memset((void *) &cmd[2], 0, 8);
 				cmd[4] = 1;	/* Start spin cycle */
 				SRpnt->sr_cmd_len = 0;
-				SRpnt->sr_sense_buffer[0] = 0;
-				SRpnt->sr_sense_buffer[2] = 0;
+				memset(SRpnt->sr_sense_buffer, 0,
+					SCSI_SENSE_BUFFERSIZE);
 
 				SRpnt->sr_data_direction = DMA_NONE;
 				scsi_wait_req(SRpnt, (void *)cmd, 
@@ -970,7 +1002,8 @@ sd_spinup_disk(struct scsi_disk *sdkp, char *diskname,
 			/* we don't understand the sense code, so it's
 			 * probably pointless to loop */
 			if(!spintime) {
-				printk(KERN_NOTICE "%s: Unit Not Ready, sense:\n", diskname);
+				printk(KERN_NOTICE "%s: Unit Not Ready, "
+					"sense:\n", diskname);
 				scsi_print_req_sense("", SRpnt);
 			}
 			break;
@@ -998,6 +1031,8 @@ sd_read_capacity(struct scsi_disk *sdkp, char *diskname,
 	int the_result, retries;
 	int sector_size = 0;
 	int longrc = 0;
+	struct scsi_sense_hdr sshdr;
+	int sense_valid = 0;
 
 repeat:
 	retries = 3;
@@ -1015,8 +1050,7 @@ repeat:
 		}
 		
 		SRpnt->sr_cmd_len = 0;
-		SRpnt->sr_sense_buffer[0] = 0;
-		SRpnt->sr_sense_buffer[2] = 0;
+		memset(SRpnt->sr_sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 		SRpnt->sr_data_direction = DMA_FROM_DEVICE;
 
 		scsi_wait_req(SRpnt, (void *) cmd, (void *) buffer,
@@ -1026,6 +1060,9 @@ repeat:
 			return;
 
 		the_result = SRpnt->sr_result;
+		if (the_result)
+			sense_valid = scsi_request_normalize_sense(SRpnt,
+								   &sshdr);
 		retries--;
 
 	} while (the_result && retries);
@@ -1047,7 +1084,7 @@ repeat:
 		/* Set dirty bit for removable devices if not ready -
 		 * sometimes drives will not report this properly. */
 		if (sdp->removable &&
-		    SRpnt->sr_sense_buffer[2] == NOT_READY)
+		    sense_valid && sshdr.sense_key == NOT_READY)
 			sdp->changed = 1;
 
 		/* Either no media are present but the drive didn't tell us,
@@ -1255,6 +1292,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, char *diskname,
 	const int dbd = 0;	   /* DBD */
 	const int modepage = 0x08; /* current values, cache page */
 	struct scsi_mode_data data;
+	struct scsi_sense_hdr sshdr;
 
 	if (sdkp->device->skip_ms_page_8)
 		goto defaults;
@@ -1304,17 +1342,14 @@ sd_read_cache_type(struct scsi_disk *sdkp, char *diskname,
 	}
 
 bad_sense:
-	if ((SRpnt->sr_sense_buffer[0] & 0x70) == 0x70
-	     && (SRpnt->sr_sense_buffer[2] & 0x0f) == ILLEGAL_REQUEST
-	     /* ASC 0x24 ASCQ 0x00: Invalid field in CDB */
-	     && SRpnt->sr_sense_buffer[12] == 0x24
-	     && SRpnt->sr_sense_buffer[13] == 0x00) {
+	if (scsi_request_normalize_sense(SRpnt, &sshdr) &&
+	    sshdr.sense_key == ILLEGAL_REQUEST &&
+	    sshdr.asc == 0x24 && sshdr.ascq == 0x0)
 		printk(KERN_NOTICE "%s: cache data unavailable\n",
-		       diskname);
-	} else {
+		       diskname);	/* Invalid field in CDB */
+	else
 		printk(KERN_ERR "%s: asking for cache data failed\n",
 		       diskname);
-	}
 
 defaults:
 	printk(KERN_ERR "%s: assuming drive cache: write through\n",
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index cf971befa9cb..f5feebf866bb 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -7,7 +7,7 @@
  * Original driver (sg.c):
  *        Copyright (C) 1992 Lawrence Foard
  * Version 2 and 3 extensions to driver:
- *        Copyright (C) 1998 - 2004 Douglas Gilbert
+ *        Copyright (C) 1998 - 2005 Douglas Gilbert
  *
  *  Modified  19-JAN-1998  Richard Gooch <rgooch@atnf.csiro.au>  Devfs support
  *
@@ -18,8 +18,8 @@
  *
  */
 
-static int sg_version_num = 30531;	/* 2 digits for each component */
-#define SG_VERSION_STR "3.5.31"
+static int sg_version_num = 30532;	/* 2 digits for each component */
+#define SG_VERSION_STR "3.5.32"
 
 /*
  *  D. P. Gilbert (dgilbert@interlog.com, dougg@triode.net.au), notes:
@@ -60,7 +60,7 @@ static int sg_version_num = 30531;	/* 2 digits for each component */
 
 #ifdef CONFIG_SCSI_PROC_FS
 #include <linux/proc_fs.h>
-static char *sg_version_date = "20040516";
+static char *sg_version_date = "20050117";
 
 static int sg_proc_init(void);
 static void sg_proc_cleanup(void);
@@ -1282,6 +1282,8 @@ sg_cmd_done(Scsi_Cmnd * SCpnt)
 	srp->header.duration =
 	    jiffies_to_msecs(jiffies - srp->header.duration);
 	if (0 != SRpnt->sr_result) {
+		struct scsi_sense_hdr sshdr;
+
 		memcpy(srp->sense_b, SRpnt->sr_sense_buffer,
 		       sizeof (srp->sense_b));
 		srp->header.status = 0xff & SRpnt->sr_result;
@@ -1296,11 +1298,12 @@ sg_cmd_done(Scsi_Cmnd * SCpnt)
 
 		/* Following if statement is a patch supplied by Eric Youngdale */
 		if (driver_byte(SRpnt->sr_result) != 0
-		    && (SRpnt->sr_sense_buffer[0] & 0x7f) == 0x70
-		    && (SRpnt->sr_sense_buffer[2] & 0xf) == UNIT_ATTENTION
+		    && scsi_command_normalize_sense(SCpnt, &sshdr)
+		    && !scsi_sense_is_deferred(&sshdr)
+		    && sshdr.sense_key == UNIT_ATTENTION
 		    && sdp->device->removable) {
-			/* Detected disc change. Set the bit - this may be used if */
-			/* there are filesystems using this device. */
+			/* Detected possible disc change. Set the bit - this */
+			/* may be used if there are filesystems using this device */
 			sdp->device->changed = 1;
 		}
 	}
@@ -1573,8 +1576,8 @@ sg_remove(struct class_device *cl_dev)
  * of sysfs parameters (which module_param doesn't yet support).
  * Sysfs parameters defined explicitly below.
  */
-module_param_named(def_reserved_size, def_reserved_size, int, 0);
-module_param_named(allow_dio, sg_allow_dio, int, 0);
+module_param_named(def_reserved_size, def_reserved_size, int, S_IRUGO);
+module_param_named(allow_dio, sg_allow_dio, int, S_IRUGO | S_IWUSR);
 
 MODULE_AUTHOR("Douglas Gilbert");
 MODULE_DESCRIPTION("SCSI generic (sg) driver");
@@ -2606,9 +2609,14 @@ sg_page_free(char *buff, int size)
 	free_pages((unsigned long) buff, order);
 }
 
+#ifndef MAINTENANCE_IN_CMD
+#define MAINTENANCE_IN_CMD 0xa3
+#endif
+
 static unsigned char allow_ops[] = { TEST_UNIT_READY, REQUEST_SENSE,
 	INQUIRY, READ_CAPACITY, READ_BUFFER, READ_6, READ_10, READ_12,
-	MODE_SENSE, MODE_SENSE_10, LOG_SENSE
+	READ_16, MODE_SENSE, MODE_SENSE_10, LOG_SENSE, REPORT_LUNS,
+	SERVICE_ACTION_IN, RECEIVE_DIAGNOSTIC, READ_LONG, MAINTENANCE_IN_CMD
 };
 
 static int
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index a228c532684a..2712857a1adb 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -152,9 +152,11 @@ static inline struct scsi_cd *scsi_cd_get(struct gendisk *disk)
 
 static inline void scsi_cd_put(struct scsi_cd *cd)
 {
+	struct scsi_device *sdev = cd->device;
+
 	down(&sr_ref_sem);
 	kref_put(&cd->kref, sr_kref_release);
-	scsi_device_put(cd->device);
+	scsi_device_put(sdev);
 	up(&sr_ref_sem);
 }
 
diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
new file mode 100644
index 000000000000..3598f96d4c24
--- /dev/null
+++ b/include/linux/attribute_container.h
@@ -0,0 +1,61 @@
+/*
+ * class_container.h - a generic container for all classes
+ *
+ * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
+ *
+ * This file is licensed under GPLv2
+ */
+
+#ifndef _ATTRIBUTE_CONTAINER_H_
+#define _ATTRIBUTE_CONTAINER_H_
+
+#include <linux/device.h>
+#include <linux/list.h>
+
+struct attribute_container {
+	struct list_head	node;
+	struct list_head	containers;
+	struct class		*class;
+	struct class_device_attribute **attrs;
+	int (*match)(struct attribute_container *, struct device *);
+#define	ATTRIBUTE_CONTAINER_NO_CLASSDEVS	0x01
+	unsigned long		flags;
+};
+
+static inline int
+attribute_container_no_classdevs(struct attribute_container *atc)
+{
+	return atc->flags & ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
+}
+
+static inline void
+attribute_container_set_no_classdevs(struct attribute_container *atc)
+{
+	atc->flags |= ATTRIBUTE_CONTAINER_NO_CLASSDEVS;
+}
+
+int attribute_container_register(struct attribute_container *cont);
+int attribute_container_unregister(struct attribute_container *cont);
+void attribute_container_create_device(struct device *dev,
+				       int (*fn)(struct attribute_container *,
+						 struct device *,
+						 struct class_device *));
+void attribute_container_add_device(struct device *dev,
+				    int (*fn)(struct attribute_container *,
+					      struct device *,
+					      struct class_device *));
+void attribute_container_remove_device(struct device *dev,
+				       void (*fn)(struct attribute_container *,
+						  struct device *,
+						  struct class_device *));
+void attribute_container_device_trigger(struct device *dev, 
+					int (*fn)(struct attribute_container *,
+						  struct device *,
+						  struct class_device *));
+void attribute_container_trigger(struct device *dev, 
+				 int (*fn)(struct attribute_container *,
+					   struct device *));
+
+struct class_device_attribute **attribute_container_classdev_to_attrs(const struct class_device *classdev);
+
+#endif
diff --git a/include/linux/transport_class.h b/include/linux/transport_class.h
new file mode 100644
index 000000000000..57e60203f1e0
--- /dev/null
+++ b/include/linux/transport_class.h
@@ -0,0 +1,77 @@
+/*
+ * transport_class.h - a generic container for all transport classes
+ *
+ * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
+ *
+ * This file is licensed under GPLv2
+ */
+
+#ifndef _TRANSPORT_CLASS_H_
+#define _TRANSPORT_CLASS_H_
+
+#include <linux/device.h>
+#include <linux/attribute_container.h>
+
+struct transport_class {
+	struct class class;
+	int (*setup)(struct device *);
+	int (*configure)(struct device *);
+	int (*remove)(struct device *);
+};
+
+#define DECLARE_TRANSPORT_CLASS(cls, nm, su, rm, cfg)			\
+struct transport_class cls = {						\
+	.class = {							\
+		.name = nm,						\
+	},								\
+	.setup = su,							\
+	.remove = rm,							\
+	.configure = cfg,						\
+}
+
+
+struct anon_transport_class {
+	struct transport_class tclass;
+	struct attribute_container container;
+};
+
+#define DECLARE_ANON_TRANSPORT_CLASS(cls, mtch, cfg)		\
+struct anon_transport_class cls = {				\
+	.tclass = {						\
+		.configure = cfg,				\
+	},							\
+	. container = {						\
+		.match = mtch,					\
+	},							\
+}
+
+#define class_to_transport_class(x) \
+	container_of(x, struct transport_class, class)
+
+void transport_remove_device(struct device *);
+void transport_add_device(struct device *);
+void transport_setup_device(struct device *);
+void transport_configure_device(struct device *);
+void transport_destroy_device(struct device *);
+
+static inline void
+transport_register_device(struct device *dev)
+{
+	transport_setup_device(dev);
+	transport_add_device(dev);
+}
+
+static inline void
+transport_unregister_device(struct device *dev)
+{
+	transport_remove_device(dev);
+	transport_destroy_device(dev);
+}
+
+int transport_class_register(struct transport_class *);
+int anon_transport_class_register(struct anon_transport_class *);
+void transport_class_unregister(struct transport_class *);
+void anon_transport_class_unregister(struct anon_transport_class *);
+
+
+#endif
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 8678132e3947..53e3d08d8a99 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -123,8 +123,6 @@ struct scsi_device {
 	struct device		sdev_gendev;
 	struct class_device	sdev_classdev;
 
-	struct class_device	transport_classdev;
-
 	enum scsi_device_state sdev_state;
 	unsigned long		sdev_data[0];
 } __attribute__((aligned(sizeof(unsigned long))));
@@ -133,7 +131,7 @@ struct scsi_device {
 #define	class_to_sdev(d)	\
 	container_of(d, struct scsi_device, sdev_classdev)
 #define transport_class_to_sdev(class_dev) \
-	container_of(class_dev, struct scsi_device, transport_classdev)
+	to_scsi_device(class_dev->dev)
 
 /*
  * scsi_target: representation of a scsi target, for now, this is only
@@ -146,7 +144,6 @@ struct scsi_target {
 	unsigned int		channel;
 	unsigned int		id; /* target id ... replace
 				     * scsi_device.id eventually */
-	struct class_device	transport_classdev;
 	unsigned long		create:1; /* signal that it needs to be added */
 	unsigned long		starget_data[0];
 } __attribute__((aligned(sizeof(unsigned long))));
@@ -157,7 +154,7 @@ static inline struct scsi_target *scsi_target(struct scsi_device *sdev)
 	return to_scsi_target(sdev->sdev_gendev.parent);
 }
 #define transport_class_to_starget(class_dev) \
-	container_of(class_dev, struct scsi_target, transport_classdev)
+	to_scsi_target(class_dev->dev)
 
 extern struct scsi_device *__scsi_add_device(struct Scsi_Host *,
 		uint, uint, uint, void *hostdata);
@@ -226,6 +223,8 @@ extern void scsi_device_resume(struct scsi_device *sdev);
 extern void scsi_target_quiesce(struct scsi_target *);
 extern void scsi_target_resume(struct scsi_target *);
 extern const char *scsi_device_state_name(enum scsi_device_state);
+extern int scsi_is_sdev_device(const struct device *);
+extern int scsi_is_target_device(const struct device *);
 static inline int scsi_device_online(struct scsi_device *sdev)
 {
 	return sdev->sdev_state != SDEV_OFFLINE;
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index d70ee766983e..80557f879e3e 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -44,6 +44,12 @@ static inline int scsi_sense_is_deferred(struct scsi_sense_hdr *sshdr)
 {
 	return ((sshdr->response_code >= 0x70) && (sshdr->response_code & 1));
 }
+
+extern const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len,
+				       int desc_type);
+
+extern int scsi_get_sense_info_fld(const u8 * sense_buffer, int sb_len,
+				   u64 * info_out);
  
 /*
  * Reset request from external source
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a22a274fbd7a..191b8fced8ac 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -71,7 +71,18 @@ struct scsi_host_template {
 	 * Status: OPTIONAL
 	 */
 	int (* ioctl)(struct scsi_device *dev, int cmd, void __user *arg);
-	
+
+
+#ifdef CONFIG_COMPAT
+	/* 
+	 * Compat handler. Handle 32bit ABI.
+	 * When unknown ioctl is passed return -ENOIOCTLCMD.
+	 *
+	 * Status: OPTIONAL
+	 */
+	int (* compat_ioctl)(struct scsi_device *dev, int cmd, void __user *arg);
+#endif
+
 	/*
 	 * The queuecommand function is used to queue up a scsi
 	 * command block to the LLDD.  When the driver finished
@@ -528,7 +539,6 @@ struct Scsi_Host {
 	 * separately
 	 */
 	void *shost_data;
-	struct class_device transport_classdev;
 
 	/*
 	 * We should ensure that this is aligned, both for better performance
@@ -542,8 +552,6 @@ struct Scsi_Host {
 	container_of(d, struct Scsi_Host, shost_gendev)
 #define		class_to_shost(d)	\
 	container_of(d, struct Scsi_Host, shost_classdev)
-#define		transport_class_to_shost(class_dev) \
-	container_of(class_dev, struct Scsi_Host, transport_classdev)
 
 
 extern struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *, int);
@@ -578,6 +586,7 @@ static inline struct device *scsi_get_device(struct Scsi_Host *shost)
 extern void scsi_unblock_requests(struct Scsi_Host *);
 extern void scsi_block_requests(struct Scsi_Host *);
 
+struct class_container;
 /*
  * These two functions are used to allocate and free a pseudo device
  * which will connect to the host adapter itself rather than any
@@ -587,6 +596,8 @@ extern void scsi_block_requests(struct Scsi_Host *);
  */
 extern void scsi_free_host_dev(struct scsi_device *);
 extern struct scsi_device *scsi_get_host_dev(struct Scsi_Host *);
+int scsi_is_host_device(const struct device *);
+
 
 /* legacy interfaces */
 extern struct Scsi_Host *scsi_register(struct scsi_host_template *, int);
diff --git a/include/scsi/scsi_transport.h b/include/scsi/scsi_transport.h
index 705e9ef3cae8..889849a1f5b6 100644
--- a/include/scsi/scsi_transport.h
+++ b/include/scsi/scsi_transport.h
@@ -20,31 +20,16 @@
 #ifndef SCSI_TRANSPORT_H
 #define SCSI_TRANSPORT_H
 
-struct scsi_transport_template {
-	/* The NULL terminated list of transport attributes
-	 * that should be exported.
-	 */
-	struct class_device_attribute **device_attrs;
-	struct class_device_attribute **target_attrs;
-	struct class_device_attribute **host_attrs;
-
+#include <linux/transport_class.h>
 
-	/* The transport class that the device is in */
-	struct class *device_class;
-	struct class *target_class;
-	struct class *host_class;
+struct scsi_transport_template {
+	/* The statistics attached to the host class only */
 	struct attribute_group *host_statistics;
 
-	/* Constructor functions */
-	int (*device_setup)(struct scsi_device *);
-	int (*device_configure)(struct scsi_device *);
-	int (*target_setup)(struct scsi_target *);
-	int (*host_setup)(struct Scsi_Host *);
-
-	/* Destructor functions */
-	void (*device_destroy)(struct scsi_device *);
-	void (*target_destroy)(struct scsi_target *);
-	void (*host_destroy)(struct Scsi_Host *);
+	/* the attribute containers */
+	struct attribute_container host_attrs;
+	struct attribute_container target_attrs;
+	struct attribute_container device_attrs;
 
 	/* The size of the specific transport attribute structure (a
 	 * space of this size will be left at the end of the
@@ -54,4 +39,8 @@ struct scsi_transport_template {
 	int	host_size;
 };
 
+#define transport_class_to_shost(tc) \
+	dev_to_shost((tc)->dev)
+
+
 #endif /* SCSI_TRANSPORT_H */
diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h
index 877ec97b6db7..d18b22f427c3 100644
--- a/include/scsi/scsi_transport_spi.h
+++ b/include/scsi/scsi_transport_spi.h
@@ -21,6 +21,7 @@
 #define SCSI_TRANSPORT_SPI_H
 
 #include <linux/config.h>
+#include <linux/transport_class.h>
 
 struct scsi_transport_template;