Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 3911 insertions, 0 deletions

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
new file mode 100644
index 000000000..39ef07406
--- /dev/null
+++ b/drivers/scsi/BusLogic.c
@@ -0,0 +1,3911 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+
+  Linux Driver for BusLogic MultiMaster and FlashPoint SCSI Host Adapters
+
+  Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>
+
+
+  The author respectfully requests that any modifications to this software be
+  sent directly to him for evaluation and testing.
+
+  Special thanks to Wayne Yen, Jin-Lon Hon, and Alex Win of BusLogic, whose
+  advice has been invaluable, to David Gentzel, for writing the original Linux
+  BusLogic driver, and to Paul Gortmaker, for being such a dedicated test site.
+
+  Finally, special thanks to Mylex/BusLogic for making the FlashPoint SCCB
+  Manager available as freely redistributable source code.
+
+*/
+
+#define blogic_drvr_version		"2.1.17"
+#define blogic_drvr_date		"12 September 2013"
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/ioport.h>
+#include <linux/mm.h>
+#include <linux/stat.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+#include <linux/jiffies.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/msdos_partition.h>
+#include <scsi/scsicam.h>
+
+#include <asm/dma.h>
+#include <asm/io.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include "BusLogic.h"
+#include "FlashPoint.c"
+
+#ifndef FAILURE
+#define FAILURE (-1)
+#endif
+
+static struct scsi_host_template blogic_template;
+
+/*
+  blogic_drvr_options_count is a count of the number of BusLogic Driver
+  Options specifications provided via the Linux Kernel Command Line or via
+  the Loadable Kernel Module Installation Facility.
+*/
+
+static int blogic_drvr_options_count;
+
+
+/*
+  blogic_drvr_options is an array of Driver Options structures representing
+  BusLogic Driver Options specifications provided via the Linux Kernel Command
+  Line or via the Loadable Kernel Module Installation Facility.
+*/
+
+static struct blogic_drvr_options blogic_drvr_options[BLOGIC_MAX_ADAPTERS];
+
+
+/*
+  BusLogic can be assigned a string by insmod.
+*/
+
+MODULE_LICENSE("GPL");
+#ifdef MODULE
+static char *BusLogic;
+module_param(BusLogic, charp, 0);
+#endif
+
+
+/*
+  blogic_probe_options is a set of Probe Options to be applied across
+  all BusLogic Host Adapters.
+*/
+
+static struct blogic_probe_options blogic_probe_options;
+
+
+/*
+  blogic_global_options is a set of Global Options to be applied across
+  all BusLogic Host Adapters.
+*/
+
+static struct blogic_global_options blogic_global_options;
+
+static LIST_HEAD(blogic_host_list);
+
+/*
+  blogic_probeinfo_count is the number of entries in blogic_probeinfo_list.
+*/
+
+static int blogic_probeinfo_count;
+
+
+/*
+  blogic_probeinfo_list is the list of I/O Addresses and Bus Probe Information
+  to be checked for potential BusLogic Host Adapters.  It is initialized by
+  interrogating the PCI Configuration Space on PCI machines as well as from the
+  list of standard BusLogic I/O Addresses.
+*/
+
+static struct blogic_probeinfo *blogic_probeinfo_list;
+
+
+/*
+  blogic_cmd_failure_reason holds a string identifying the reason why a
+  call to blogic_cmd failed.  It is only non-NULL when blogic_cmd
+  returns a failure code.
+*/
+
+static char *blogic_cmd_failure_reason;
+
+/*
+  blogic_announce_drvr announces the Driver Version and Date, Author's
+  Name, Copyright Notice, and Electronic Mail Address.
+*/
+
+static void blogic_announce_drvr(struct blogic_adapter *adapter)
+{
+	blogic_announce("***** BusLogic SCSI Driver Version " blogic_drvr_version " of " blogic_drvr_date " *****\n", adapter);
+	blogic_announce("Copyright 1995-1998 by Leonard N. Zubkoff <lnz@dandelion.com>\n", adapter);
+}
+
+
+/*
+  blogic_drvr_info returns the Host Adapter Name to identify this SCSI
+  Driver and Host Adapter.
+*/
+
+static const char *blogic_drvr_info(struct Scsi_Host *host)
+{
+	struct blogic_adapter *adapter =
+				(struct blogic_adapter *) host->hostdata;
+	return adapter->full_model;
+}
+
+/*
+  blogic_init_ccbs initializes a group of Command Control Blocks (CCBs)
+  for Host Adapter from the blk_size bytes located at blk_pointer.  The newly
+  created CCBs are added to Host Adapter's free list.
+*/
+
+static void blogic_init_ccbs(struct blogic_adapter *adapter, void *blk_pointer,
+				int blk_size, dma_addr_t blkp)
+{
+	struct blogic_ccb *ccb = (struct blogic_ccb *) blk_pointer;
+	unsigned int offset = 0;
+	memset(blk_pointer, 0, blk_size);
+	ccb->allocgrp_head = blkp;
+	ccb->allocgrp_size = blk_size;
+	while ((blk_size -= sizeof(struct blogic_ccb)) >= 0) {
+		ccb->status = BLOGIC_CCB_FREE;
+		ccb->adapter = adapter;
+		ccb->dma_handle = (u32) blkp + offset;
+		if (blogic_flashpoint_type(adapter)) {
+			ccb->callback = blogic_qcompleted_ccb;
+			ccb->base_addr = adapter->fpinfo.base_addr;
+		}
+		ccb->next = adapter->free_ccbs;
+		ccb->next_all = adapter->all_ccbs;
+		adapter->free_ccbs = ccb;
+		adapter->all_ccbs = ccb;
+		adapter->alloc_ccbs++;
+		ccb++;
+		offset += sizeof(struct blogic_ccb);
+	}
+}
+
+
+/*
+  blogic_create_initccbs allocates the initial CCBs for Host Adapter.
+*/
+
+static bool __init blogic_create_initccbs(struct blogic_adapter *adapter)
+{
+	int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
+	void *blk_pointer;
+	dma_addr_t blkp;
+
+	while (adapter->alloc_ccbs < adapter->initccbs) {
+		blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
+				blk_size, &blkp, GFP_KERNEL);
+		if (blk_pointer == NULL) {
+			blogic_err("UNABLE TO ALLOCATE CCB GROUP - DETACHING\n",
+					adapter);
+			return false;
+		}
+		blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
+	}
+	return true;
+}
+
+
+/*
+  blogic_destroy_ccbs deallocates the CCBs for Host Adapter.
+*/
+
+static void blogic_destroy_ccbs(struct blogic_adapter *adapter)
+{
+	struct blogic_ccb *next_ccb = adapter->all_ccbs, *ccb, *lastccb = NULL;
+	adapter->all_ccbs = NULL;
+	adapter->free_ccbs = NULL;
+	while ((ccb = next_ccb) != NULL) {
+		next_ccb = ccb->next_all;
+		if (ccb->allocgrp_head) {
+			if (lastccb)
+				dma_free_coherent(&adapter->pci_device->dev,
+						lastccb->allocgrp_size, lastccb,
+						lastccb->allocgrp_head);
+			lastccb = ccb;
+		}
+	}
+	if (lastccb)
+		dma_free_coherent(&adapter->pci_device->dev,
+				lastccb->allocgrp_size, lastccb,
+				lastccb->allocgrp_head);
+}
+
+
+/*
+  blogic_create_addlccbs allocates Additional CCBs for Host Adapter.  If
+  allocation fails and there are no remaining CCBs available, the Driver Queue
+  Depth is decreased to a known safe value to avoid potential deadlocks when
+  multiple host adapters share the same IRQ Channel.
+*/
+
+static void blogic_create_addlccbs(struct blogic_adapter *adapter,
+					int addl_ccbs, bool print_success)
+{
+	int blk_size = BLOGIC_CCB_GRP_ALLOCSIZE * sizeof(struct blogic_ccb);
+	int prev_alloc = adapter->alloc_ccbs;
+	void *blk_pointer;
+	dma_addr_t blkp;
+	if (addl_ccbs <= 0)
+		return;
+	while (adapter->alloc_ccbs - prev_alloc < addl_ccbs) {
+		blk_pointer = dma_alloc_coherent(&adapter->pci_device->dev,
+				blk_size, &blkp, GFP_KERNEL);
+		if (blk_pointer == NULL)
+			break;
+		blogic_init_ccbs(adapter, blk_pointer, blk_size, blkp);
+	}
+	if (adapter->alloc_ccbs > prev_alloc) {
+		if (print_success)
+			blogic_notice("Allocated %d additional CCBs (total now %d)\n", adapter, adapter->alloc_ccbs - prev_alloc, adapter->alloc_ccbs);
+		return;
+	}
+	blogic_notice("Failed to allocate additional CCBs\n", adapter);
+	if (adapter->drvr_qdepth > adapter->alloc_ccbs - adapter->tgt_count) {
+		adapter->drvr_qdepth = adapter->alloc_ccbs - adapter->tgt_count;
+		adapter->scsi_host->can_queue = adapter->drvr_qdepth;
+	}
+}
+
+/*
+  blogic_alloc_ccb allocates a CCB from Host Adapter's free list,
+  allocating more memory from the Kernel if necessary.  The Host Adapter's
+  Lock should already have been acquired by the caller.
+*/
+
+static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
+{
+	static unsigned long serial;
+	struct blogic_ccb *ccb;
+	ccb = adapter->free_ccbs;
+	if (ccb != NULL) {
+		ccb->serial = ++serial;
+		adapter->free_ccbs = ccb->next;
+		ccb->next = NULL;
+		if (adapter->free_ccbs == NULL)
+			blogic_create_addlccbs(adapter, adapter->inc_ccbs,
+						true);
+		return ccb;
+	}
+	blogic_create_addlccbs(adapter, adapter->inc_ccbs, true);
+	ccb = adapter->free_ccbs;
+	if (ccb == NULL)
+		return NULL;
+	ccb->serial = ++serial;
+	adapter->free_ccbs = ccb->next;
+	ccb->next = NULL;
+	return ccb;
+}
+
+
+/*
+  blogic_dealloc_ccb deallocates a CCB, returning it to the Host Adapter's
+  free list.  The Host Adapter's Lock should already have been acquired by the
+  caller.
+*/
+
+static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
+{
+	struct blogic_adapter *adapter = ccb->adapter;
+
+	if (ccb->command != NULL)
+		scsi_dma_unmap(ccb->command);
+	if (dma_unmap)
+		dma_unmap_single(&adapter->pci_device->dev, ccb->sensedata,
+			 ccb->sense_datalen, DMA_FROM_DEVICE);
+
+	ccb->command = NULL;
+	ccb->status = BLOGIC_CCB_FREE;
+	ccb->next = adapter->free_ccbs;
+	adapter->free_ccbs = ccb;
+}
+
+
+/*
+  blogic_cmd sends the command opcode to adapter, optionally
+  providing paramlen bytes of param and receiving at most
+  replylen bytes of reply; any excess reply data is received but
+  discarded.
+
+  On success, this function returns the number of reply bytes read from
+  the Host Adapter (including any discarded data); on failure, it returns
+  -1 if the command was invalid, or -2 if a timeout occurred.
+
+  blogic_cmd is called exclusively during host adapter detection and
+  initialization, so performance and latency are not critical, and exclusive
+  access to the Host Adapter hardware is assumed.  Once the host adapter and
+  driver are initialized, the only Host Adapter command that is issued is the
+  single byte Execute Mailbox Command operation code, which does not require
+  waiting for the Host Adapter Ready bit to be set in the Status Register.
+*/
+
+static int blogic_cmd(struct blogic_adapter *adapter, enum blogic_opcode opcode,
+			void *param, int paramlen, void *reply, int replylen)
+{
+	unsigned char *param_p = (unsigned char *) param;
+	unsigned char *reply_p = (unsigned char *) reply;
+	union blogic_stat_reg statusreg;
+	union blogic_int_reg intreg;
+	unsigned long processor_flag = 0;
+	int reply_b = 0, result;
+	long timeout;
+	/*
+	   Clear out the Reply Data if provided.
+	 */
+	if (replylen > 0)
+		memset(reply, 0, replylen);
+	/*
+	   If the IRQ Channel has not yet been acquired, then interrupts
+	   must be disabled while issuing host adapter commands since a
+	   Command Complete interrupt could occur if the IRQ Channel was
+	   previously enabled by another BusLogic Host Adapter or another
+	   driver sharing the same IRQ Channel.
+	 */
+	if (!adapter->irq_acquired)
+		local_irq_save(processor_flag);
+	/*
+	   Wait for the Host Adapter Ready bit to be set and the
+	   Command/Parameter Register Busy bit to be reset in the Status
+	   Register.
+	 */
+	timeout = 10000;
+	while (--timeout >= 0) {
+		statusreg.all = blogic_rdstatus(adapter);
+		if (statusreg.sr.adapter_ready && !statusreg.sr.cmd_param_busy)
+			break;
+		udelay(100);
+	}
+	if (timeout < 0) {
+		blogic_cmd_failure_reason =
+				"Timeout waiting for Host Adapter Ready";
+		result = -2;
+		goto done;
+	}
+	/*
+	   Write the opcode to the Command/Parameter Register.
+	 */
+	adapter->adapter_cmd_complete = false;
+	blogic_setcmdparam(adapter, opcode);
+	/*
+	   Write any additional Parameter Bytes.
+	 */
+	timeout = 10000;
+	while (paramlen > 0 && --timeout >= 0) {
+		/*
+		   Wait 100 microseconds to give the Host Adapter enough
+		   time to determine whether the last value written to the
+		   Command/Parameter Register was valid or not. If the
+		   Command Complete bit is set in the Interrupt Register,
+		   then the Command Invalid bit in the Status Register will
+		   be reset if the Operation Code or Parameter was valid
+		   and the command has completed, or set if the Operation
+		   Code or Parameter was invalid. If the Data In Register
+		   Ready bit is set in the Status Register, then the
+		   Operation Code was valid, and data is waiting to be read
+		   back from the Host Adapter. Otherwise, wait for the
+		   Command/Parameter Register Busy bit in the Status
+		   Register to be reset.
+		 */
+		udelay(100);
+		intreg.all = blogic_rdint(adapter);
+		statusreg.all = blogic_rdstatus(adapter);
+		if (intreg.ir.cmd_complete)
+			break;
+		if (adapter->adapter_cmd_complete)
+			break;
+		if (statusreg.sr.datain_ready)
+			break;
+		if (statusreg.sr.cmd_param_busy)
+			continue;
+		blogic_setcmdparam(adapter, *param_p++);
+		paramlen--;
+	}
+	if (timeout < 0) {
+		blogic_cmd_failure_reason =
+				"Timeout waiting for Parameter Acceptance";
+		result = -2;
+		goto done;
+	}
+	/*
+	   The Modify I/O Address command does not cause a Command Complete
+	   Interrupt.
+	 */
+	if (opcode == BLOGIC_MOD_IOADDR) {
+		statusreg.all = blogic_rdstatus(adapter);
+		if (statusreg.sr.cmd_invalid) {
+			blogic_cmd_failure_reason =
+					"Modify I/O Address Invalid";
+			result = -1;
+			goto done;
+		}
+		if (blogic_global_options.trace_config)
+			blogic_notice("blogic_cmd(%02X) Status = %02X: (Modify I/O Address)\n", adapter, opcode, statusreg.all);
+		result = 0;
+		goto done;
+	}
+	/*
+	   Select an appropriate timeout value for awaiting command completion.
+	 */
+	switch (opcode) {
+	case BLOGIC_INQ_DEV0TO7:
+	case BLOGIC_INQ_DEV8TO15:
+	case BLOGIC_INQ_DEV:
+		/* Approximately 60 seconds. */
+		timeout = 60 * 10000;
+		break;
+	default:
+		/* Approximately 1 second. */
+		timeout = 10000;
+		break;
+	}
+	/*
+	   Receive any Reply Bytes, waiting for either the Command
+	   Complete bit to be set in the Interrupt Register, or for the
+	   Interrupt Handler to set the Host Adapter Command Completed
+	   bit in the Host Adapter structure.
+	 */
+	while (--timeout >= 0) {
+		intreg.all = blogic_rdint(adapter);
+		statusreg.all = blogic_rdstatus(adapter);
+		if (intreg.ir.cmd_complete)
+			break;
+		if (adapter->adapter_cmd_complete)
+			break;
+		if (statusreg.sr.datain_ready) {
+			if (++reply_b <= replylen)
+				*reply_p++ = blogic_rddatain(adapter);
+			else
+				blogic_rddatain(adapter);
+		}
+		if (opcode == BLOGIC_FETCH_LOCALRAM &&
+				statusreg.sr.adapter_ready)
+			break;
+		udelay(100);
+	}
+	if (timeout < 0) {
+		blogic_cmd_failure_reason =
+					"Timeout waiting for Command Complete";
+		result = -2;
+		goto done;
+	}
+	/*
+	   Clear any pending Command Complete Interrupt.
+	 */
+	blogic_intreset(adapter);
+	/*
+	   Provide tracing information if requested.
+	 */
+	if (blogic_global_options.trace_config) {
+		int i;
+		blogic_notice("blogic_cmd(%02X) Status = %02X: %2d ==> %2d:",
+				adapter, opcode, statusreg.all, replylen,
+				reply_b);
+		if (replylen > reply_b)
+			replylen = reply_b;
+		for (i = 0; i < replylen; i++)
+			blogic_notice(" %02X", adapter,
+					((unsigned char *) reply)[i]);
+		blogic_notice("\n", adapter);
+	}
+	/*
+	   Process Command Invalid conditions.
+	 */
+	if (statusreg.sr.cmd_invalid) {
+		/*
+		   Some early BusLogic Host Adapters may not recover
+		   properly from a Command Invalid condition, so if this
+		   appears to be the case, a Soft Reset is issued to the
+		   Host Adapter.  Potentially invalid commands are never
+		   attempted after Mailbox Initialization is performed,
+		   so there should be no Host Adapter state lost by a
+		   Soft Reset in response to a Command Invalid condition.
+		 */
+		udelay(1000);
+		statusreg.all = blogic_rdstatus(adapter);
+		if (statusreg.sr.cmd_invalid || statusreg.sr.rsvd ||
+				statusreg.sr.datain_ready ||
+				statusreg.sr.cmd_param_busy ||
+				!statusreg.sr.adapter_ready ||
+				!statusreg.sr.init_reqd ||
+				statusreg.sr.diag_active ||
+				statusreg.sr.diag_failed) {
+			blogic_softreset(adapter);
+			udelay(1000);
+		}
+		blogic_cmd_failure_reason = "Command Invalid";
+		result = -1;
+		goto done;
+	}
+	/*
+	   Handle Excess Parameters Supplied conditions.
+	 */
+	if (paramlen > 0) {
+		blogic_cmd_failure_reason = "Excess Parameters Supplied";
+		result = -1;
+		goto done;
+	}
+	/*
+	   Indicate the command completed successfully.
+	 */
+	blogic_cmd_failure_reason = NULL;
+	result = reply_b;
+	/*
+	   Restore the interrupt status if necessary and return.
+	 */
+done:
+	if (!adapter->irq_acquired)
+		local_irq_restore(processor_flag);
+	return result;
+}
+
+
+/*
+  blogic_add_probeaddr_isa appends a single ISA I/O Address to the list
+  of I/O Address and Bus Probe Information to be checked for potential BusLogic
+  Host Adapters.
+*/
+
+static void __init blogic_add_probeaddr_isa(unsigned long io_addr)
+{
+	struct blogic_probeinfo *probeinfo;
+	if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
+		return;
+	probeinfo = &blogic_probeinfo_list[blogic_probeinfo_count++];
+	probeinfo->adapter_type = BLOGIC_MULTIMASTER;
+	probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
+	probeinfo->io_addr = io_addr;
+	probeinfo->pci_device = NULL;
+}
+
+
+/*
+  blogic_init_probeinfo_isa initializes the list of I/O Address and
+  Bus Probe Information to be checked for potential BusLogic SCSI Host Adapters
+  only from the list of standard BusLogic MultiMaster ISA I/O Addresses.
+*/
+
+static void __init blogic_init_probeinfo_isa(struct blogic_adapter *adapter)
+{
+	/*
+	   If BusLogic Driver Options specifications requested that ISA
+	   Bus Probes be inhibited, do not proceed further.
+	 */
+	if (blogic_probe_options.noprobe_isa)
+		return;
+	/*
+	   Append the list of standard BusLogic MultiMaster ISA I/O Addresses.
+	 */
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe330)
+		blogic_add_probeaddr_isa(0x330);
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe334)
+		blogic_add_probeaddr_isa(0x334);
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe230)
+		blogic_add_probeaddr_isa(0x230);
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe234)
+		blogic_add_probeaddr_isa(0x234);
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe130)
+		blogic_add_probeaddr_isa(0x130);
+	if (!blogic_probe_options.limited_isa || blogic_probe_options.probe134)
+		blogic_add_probeaddr_isa(0x134);
+}
+
+
+#ifdef CONFIG_PCI
+
+
+/*
+  blogic_sort_probeinfo sorts a section of blogic_probeinfo_list in order
+  of increasing PCI Bus and Device Number.
+*/
+
+static void __init blogic_sort_probeinfo(struct blogic_probeinfo
+					*probeinfo_list, int probeinfo_cnt)
+{
+	int last_exchange = probeinfo_cnt - 1, bound, j;
+
+	while (last_exchange > 0) {
+		bound = last_exchange;
+		last_exchange = 0;
+		for (j = 0; j < bound; j++) {
+			struct blogic_probeinfo *probeinfo1 =
+							&probeinfo_list[j];
+			struct blogic_probeinfo *probeinfo2 =
+							&probeinfo_list[j + 1];
+			if (probeinfo1->bus > probeinfo2->bus ||
+				(probeinfo1->bus == probeinfo2->bus &&
+				(probeinfo1->dev > probeinfo2->dev))) {
+				struct blogic_probeinfo tmp_probeinfo;
+
+				memcpy(&tmp_probeinfo, probeinfo1,
+					sizeof(struct blogic_probeinfo));
+				memcpy(probeinfo1, probeinfo2,
+					sizeof(struct blogic_probeinfo));
+				memcpy(probeinfo2, &tmp_probeinfo,
+					sizeof(struct blogic_probeinfo));
+				last_exchange = j;
+			}
+		}
+	}
+}
+
+
+/*
+  blogic_init_mm_probeinfo initializes the list of I/O Address
+  and Bus Probe Information to be checked for potential BusLogic MultiMaster
+  SCSI Host Adapters by interrogating the PCI Configuration Space on PCI
+  machines as well as from the list of standard BusLogic MultiMaster ISA
+  I/O Addresses.  It returns the number of PCI MultiMaster Host Adapters found.
+*/
+
+static int __init blogic_init_mm_probeinfo(struct blogic_adapter *adapter)
+{
+	struct blogic_probeinfo *pr_probeinfo =
+		&blogic_probeinfo_list[blogic_probeinfo_count];
+	int nonpr_mmindex = blogic_probeinfo_count + 1;
+	int nonpr_mmcount = 0, mmcount = 0;
+	bool force_scan_order = false;
+	bool force_scan_order_checked = false;
+	bool addr_seen[6];
+	struct pci_dev *pci_device = NULL;
+	int i;
+	if (blogic_probeinfo_count >= BLOGIC_MAX_ADAPTERS)
+		return 0;
+	blogic_probeinfo_count++;
+	for (i = 0; i < 6; i++)
+		addr_seen[i] = false;
+	/*
+	   Iterate over the MultiMaster PCI Host Adapters.  For each
+	   enumerated host adapter, determine whether its ISA Compatible
+	   I/O Port is enabled and if so, whether it is assigned the
+	   Primary I/O Address.  A host adapter that is assigned the
+	   Primary I/O Address will always be the preferred boot device.
+	   The MultiMaster BIOS will first recognize a host adapter at
+	   the Primary I/O Address, then any other PCI host adapters,
+	   and finally any host adapters located at the remaining
+	   standard ISA I/O Addresses.  When a PCI host adapter is found
+	   with its ISA Compatible I/O Port enabled, a command is issued
+	   to disable the ISA Compatible I/O Port, and it is noted that the
+	   particular standard ISA I/O Address need not be probed.
+	 */
+	pr_probeinfo->io_addr = 0;
+	while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
+					PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
+					pci_device)) != NULL) {
+		struct blogic_adapter *host_adapter = adapter;
+		struct blogic_adapter_info adapter_info;
+		enum blogic_isa_ioport mod_ioaddr_req;
+		unsigned char bus;
+		unsigned char device;
+		unsigned int irq_ch;
+		unsigned long base_addr0;
+		unsigned long base_addr1;
+		unsigned long io_addr;
+		unsigned long pci_addr;
+
+		if (pci_enable_device(pci_device))
+			continue;
+
+		if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
+			continue;
+
+		bus = pci_device->bus->number;
+		device = pci_device->devfn >> 3;
+		irq_ch = pci_device->irq;
+		io_addr = base_addr0 = pci_resource_start(pci_device, 0);
+		pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
+
+		if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
+			blogic_err("BusLogic: Base Address0 0x%lX not I/O for MultiMaster Host Adapter\n", NULL, base_addr0);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
+			continue;
+		}
+		if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
+			blogic_err("BusLogic: Base Address1 0x%lX not Memory for MultiMaster Host Adapter\n", NULL, base_addr1);
+			blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
+			continue;
+		}
+		if (irq_ch == 0) {
+			blogic_err("BusLogic: IRQ Channel %d invalid for MultiMaster Host Adapter\n", NULL, irq_ch);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
+			continue;
+		}
+		if (blogic_global_options.trace_probe) {
+			blogic_notice("BusLogic: PCI MultiMaster Host Adapter detected at\n", NULL);
+			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
+		}
+		/*
+		   Issue the Inquire PCI Host Adapter Information command to determine
+		   the ISA Compatible I/O Port.  If the ISA Compatible I/O Port is
+		   known and enabled, note that the particular Standard ISA I/O
+		   Address should not be probed.
+		 */
+		host_adapter->io_addr = io_addr;
+		blogic_intreset(host_adapter);
+		if (blogic_cmd(host_adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
+				&adapter_info, sizeof(adapter_info)) ==
+				sizeof(adapter_info)) {
+			if (adapter_info.isa_port < 6)
+				addr_seen[adapter_info.isa_port] = true;
+		} else
+			adapter_info.isa_port = BLOGIC_IO_DISABLE;
+		/*
+		   Issue the Modify I/O Address command to disable the
+		   ISA Compatible I/O Port. On PCI Host Adapters, the
+		   Modify I/O Address command allows modification of the
+		   ISA compatible I/O Address that the Host Adapter
+		   responds to; it does not affect the PCI compliant
+		   I/O Address assigned at system initialization.
+		 */
+		mod_ioaddr_req = BLOGIC_IO_DISABLE;
+		blogic_cmd(host_adapter, BLOGIC_MOD_IOADDR, &mod_ioaddr_req,
+				sizeof(mod_ioaddr_req), NULL, 0);
+		/*
+		   For the first MultiMaster Host Adapter enumerated,
+		   issue the Fetch Host Adapter Local RAM command to read
+		   byte 45 of the AutoSCSI area, for the setting of the
+		   "Use Bus And Device # For PCI Scanning Seq." option.
+		   Issue the Inquire Board ID command since this option is
+		   only valid for the BT-948/958/958D.
+		 */
+		if (!force_scan_order_checked) {
+			struct blogic_fetch_localram fetch_localram;
+			struct blogic_autoscsi_byte45 autoscsi_byte45;
+			struct blogic_board_id id;
+
+			fetch_localram.offset = BLOGIC_AUTOSCSI_BASE + 45;
+			fetch_localram.count = sizeof(autoscsi_byte45);
+			blogic_cmd(host_adapter, BLOGIC_FETCH_LOCALRAM,
+					&fetch_localram, sizeof(fetch_localram),
+					&autoscsi_byte45,
+					sizeof(autoscsi_byte45));
+			blogic_cmd(host_adapter, BLOGIC_GET_BOARD_ID, NULL, 0,
+					&id, sizeof(id));
+			if (id.fw_ver_digit1 == '5')
+				force_scan_order =
+					autoscsi_byte45.force_scan_order;
+			force_scan_order_checked = true;
+		}
+		/*
+		   Determine whether this MultiMaster Host Adapter has its
+		   ISA Compatible I/O Port enabled and is assigned the
+		   Primary I/O Address. If it does, then it is the Primary
+		   MultiMaster Host Adapter and must be recognized first.
+		   If it does not, then it is added to the list for probing
+		   after any Primary MultiMaster Host Adapter is probed.
+		 */
+		if (adapter_info.isa_port == BLOGIC_IO_330) {
+			pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
+			pr_probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
+			pr_probeinfo->io_addr = io_addr;
+			pr_probeinfo->pci_addr = pci_addr;
+			pr_probeinfo->bus = bus;
+			pr_probeinfo->dev = device;
+			pr_probeinfo->irq_ch = irq_ch;
+			pr_probeinfo->pci_device = pci_dev_get(pci_device);
+			mmcount++;
+		} else if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
+			struct blogic_probeinfo *probeinfo =
+				&blogic_probeinfo_list[blogic_probeinfo_count++];
+			probeinfo->adapter_type = BLOGIC_MULTIMASTER;
+			probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
+			probeinfo->io_addr = io_addr;
+			probeinfo->pci_addr = pci_addr;
+			probeinfo->bus = bus;
+			probeinfo->dev = device;
+			probeinfo->irq_ch = irq_ch;
+			probeinfo->pci_device = pci_dev_get(pci_device);
+			nonpr_mmcount++;
+			mmcount++;
+		} else
+			blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
+	}
+	/*
+	   If the AutoSCSI "Use Bus And Device # For PCI Scanning Seq."
+	   option is ON for the first enumerated MultiMaster Host Adapter,
+	   and if that host adapter is a BT-948/958/958D, then the
+	   MultiMaster BIOS will recognize MultiMaster Host Adapters in
+	   the order of increasing PCI Bus and Device Number. In that case,
+	   sort the probe information into the same order the BIOS uses.
+	   If this option is OFF, then the MultiMaster BIOS will recognize
+	   MultiMaster Host Adapters in the order they are enumerated by
+	   the PCI BIOS, and hence no sorting is necessary.
+	 */
+	if (force_scan_order)
+		blogic_sort_probeinfo(&blogic_probeinfo_list[nonpr_mmindex],
+					nonpr_mmcount);
+	/*
+	   If no PCI MultiMaster Host Adapter is assigned the Primary
+	   I/O Address, then the Primary I/O Address must be probed
+	   explicitly before any PCI host adapters are probed.
+	 */
+	if (!blogic_probe_options.noprobe_isa)
+		if (pr_probeinfo->io_addr == 0 &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe330)) {
+			pr_probeinfo->adapter_type = BLOGIC_MULTIMASTER;
+			pr_probeinfo->adapter_bus_type = BLOGIC_ISA_BUS;
+			pr_probeinfo->io_addr = 0x330;
+		}
+	/*
+	   Append the list of standard BusLogic MultiMaster ISA I/O Addresses,
+	   omitting the Primary I/O Address which has already been handled.
+	 */
+	if (!blogic_probe_options.noprobe_isa) {
+		if (!addr_seen[1] &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe334))
+			blogic_add_probeaddr_isa(0x334);
+		if (!addr_seen[2] &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe230))
+			blogic_add_probeaddr_isa(0x230);
+		if (!addr_seen[3] &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe234))
+			blogic_add_probeaddr_isa(0x234);
+		if (!addr_seen[4] &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe130))
+			blogic_add_probeaddr_isa(0x130);
+		if (!addr_seen[5] &&
+				(!blogic_probe_options.limited_isa ||
+				 blogic_probe_options.probe134))
+			blogic_add_probeaddr_isa(0x134);
+	}
+	/*
+	   Iterate over the older non-compliant MultiMaster PCI Host Adapters,
+	   noting the PCI bus location and assigned IRQ Channel.
+	 */
+	pci_device = NULL;
+	while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
+					PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
+					pci_device)) != NULL) {
+		unsigned char bus;
+		unsigned char device;
+		unsigned int irq_ch;
+		unsigned long io_addr;
+
+		if (pci_enable_device(pci_device))
+			continue;
+
+		if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
+			continue;
+
+		bus = pci_device->bus->number;
+		device = pci_device->devfn >> 3;
+		irq_ch = pci_device->irq;
+		io_addr = pci_resource_start(pci_device, 0);
+
+		if (io_addr == 0 || irq_ch == 0)
+			continue;
+		for (i = 0; i < blogic_probeinfo_count; i++) {
+			struct blogic_probeinfo *probeinfo =
+						&blogic_probeinfo_list[i];
+			if (probeinfo->io_addr == io_addr &&
+				probeinfo->adapter_type == BLOGIC_MULTIMASTER) {
+				probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
+				probeinfo->pci_addr = 0;
+				probeinfo->bus = bus;
+				probeinfo->dev = device;
+				probeinfo->irq_ch = irq_ch;
+				probeinfo->pci_device = pci_dev_get(pci_device);
+				break;
+			}
+		}
+	}
+	return mmcount;
+}
+
+
+/*
+  blogic_init_fp_probeinfo initializes the list of I/O Address
+  and Bus Probe Information to be checked for potential BusLogic FlashPoint
+  Host Adapters by interrogating the PCI Configuration Space.  It returns the
+  number of FlashPoint Host Adapters found.
+*/
+
+static int __init blogic_init_fp_probeinfo(struct blogic_adapter *adapter)
+{
+	int fpindex = blogic_probeinfo_count, fpcount = 0;
+	struct pci_dev *pci_device = NULL;
+	/*
+	   Interrogate PCI Configuration Space for any FlashPoint Host Adapters.
+	 */
+	while ((pci_device = pci_get_device(PCI_VENDOR_ID_BUSLOGIC,
+					PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
+					pci_device)) != NULL) {
+		unsigned char bus;
+		unsigned char device;
+		unsigned int irq_ch;
+		unsigned long base_addr0;
+		unsigned long base_addr1;
+		unsigned long io_addr;
+		unsigned long pci_addr;
+
+		if (pci_enable_device(pci_device))
+			continue;
+
+		if (dma_set_mask(&pci_device->dev, DMA_BIT_MASK(32)))
+			continue;
+
+		bus = pci_device->bus->number;
+		device = pci_device->devfn >> 3;
+		irq_ch = pci_device->irq;
+		io_addr = base_addr0 = pci_resource_start(pci_device, 0);
+		pci_addr = base_addr1 = pci_resource_start(pci_device, 1);
+#ifdef CONFIG_SCSI_FLASHPOINT
+		if (pci_resource_flags(pci_device, 0) & IORESOURCE_MEM) {
+			blogic_err("BusLogic: Base Address0 0x%lX not I/O for FlashPoint Host Adapter\n", NULL, base_addr0);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
+			continue;
+		}
+		if (pci_resource_flags(pci_device, 1) & IORESOURCE_IO) {
+			blogic_err("BusLogic: Base Address1 0x%lX not Memory for FlashPoint Host Adapter\n", NULL, base_addr1);
+			blogic_err("at PCI Bus %d Device %d PCI Address 0x%lX\n", NULL, bus, device, pci_addr);
+			continue;
+		}
+		if (irq_ch == 0) {
+			blogic_err("BusLogic: IRQ Channel %d invalid for FlashPoint Host Adapter\n", NULL, irq_ch);
+			blogic_err("at PCI Bus %d Device %d I/O Address 0x%lX\n", NULL, bus, device, io_addr);
+			continue;
+		}
+		if (blogic_global_options.trace_probe) {
+			blogic_notice("BusLogic: FlashPoint Host Adapter detected at\n", NULL);
+			blogic_notice("BusLogic: PCI Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX\n", NULL, bus, device, io_addr, pci_addr);
+		}
+		if (blogic_probeinfo_count < BLOGIC_MAX_ADAPTERS) {
+			struct blogic_probeinfo *probeinfo =
+				&blogic_probeinfo_list[blogic_probeinfo_count++];
+			probeinfo->adapter_type = BLOGIC_FLASHPOINT;
+			probeinfo->adapter_bus_type = BLOGIC_PCI_BUS;
+			probeinfo->io_addr = io_addr;
+			probeinfo->pci_addr = pci_addr;
+			probeinfo->bus = bus;
+			probeinfo->dev = device;
+			probeinfo->irq_ch = irq_ch;
+			probeinfo->pci_device = pci_dev_get(pci_device);
+			fpcount++;
+		} else
+			blogic_warn("BusLogic: Too many Host Adapters detected\n", NULL);
+#else
+		blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", NULL, bus, device);
+		blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, irq %d, but FlashPoint\n", NULL, io_addr, pci_addr, irq_ch);
+		blogic_err("BusLogic: support was omitted in this kernel configuration.\n", NULL);
+#endif
+	}
+	/*
+	   The FlashPoint BIOS will scan for FlashPoint Host Adapters in the order of
+	   increasing PCI Bus and Device Number, so sort the probe information into
+	   the same order the BIOS uses.
+	 */
+	blogic_sort_probeinfo(&blogic_probeinfo_list[fpindex], fpcount);
+	return fpcount;
+}
+
+
+/*
+  blogic_init_probeinfo_list initializes the list of I/O Address and Bus
+  Probe Information to be checked for potential BusLogic SCSI Host Adapters by
+  interrogating the PCI Configuration Space on PCI machines as well as from the
+  list of standard BusLogic MultiMaster ISA I/O Addresses.  By default, if both
+  FlashPoint and PCI MultiMaster Host Adapters are present, this driver will
+  probe for FlashPoint Host Adapters first unless the BIOS primary disk is
+  controlled by the first PCI MultiMaster Host Adapter, in which case
+  MultiMaster Host Adapters will be probed first.  The BusLogic Driver Options
+  specifications "MultiMasterFirst" and "FlashPointFirst" can be used to force
+  a particular probe order.
+*/
+
+static void __init blogic_init_probeinfo_list(struct blogic_adapter *adapter)
+{
+	/*
+	   If a PCI BIOS is present, interrogate it for MultiMaster and
+	   FlashPoint Host Adapters; otherwise, default to the standard
+	   ISA MultiMaster probe.
+	 */
+	if (!blogic_probe_options.noprobe_pci) {
+		if (blogic_probe_options.multimaster_first) {
+			blogic_init_mm_probeinfo(adapter);
+			blogic_init_fp_probeinfo(adapter);
+		} else if (blogic_probe_options.flashpoint_first) {
+			blogic_init_fp_probeinfo(adapter);
+			blogic_init_mm_probeinfo(adapter);
+		} else {
+			int fpcount = blogic_init_fp_probeinfo(adapter);
+			int mmcount = blogic_init_mm_probeinfo(adapter);
+			if (fpcount > 0 && mmcount > 0) {
+				struct blogic_probeinfo *probeinfo =
+					&blogic_probeinfo_list[fpcount];
+				struct blogic_adapter *myadapter = adapter;
+				struct blogic_fetch_localram fetch_localram;
+				struct blogic_bios_drvmap d0_mapbyte;
+
+				while (probeinfo->adapter_bus_type !=
+						BLOGIC_PCI_BUS)
+					probeinfo++;
+				myadapter->io_addr = probeinfo->io_addr;
+				fetch_localram.offset =
+					BLOGIC_BIOS_BASE + BLOGIC_BIOS_DRVMAP;
+				fetch_localram.count = sizeof(d0_mapbyte);
+				blogic_cmd(myadapter, BLOGIC_FETCH_LOCALRAM,
+						&fetch_localram,
+						sizeof(fetch_localram),
+						&d0_mapbyte,
+						sizeof(d0_mapbyte));
+				/*
+				   If the Map Byte for BIOS Drive 0 indicates
+				   that BIOS Drive 0 is controlled by this
+				   PCI MultiMaster Host Adapter, then reverse
+				   the probe order so that MultiMaster Host
+				   Adapters are probed before FlashPoint Host
+				   Adapters.
+				 */
+				if (d0_mapbyte.diskgeom != BLOGIC_BIOS_NODISK) {
+					struct blogic_probeinfo saved_probeinfo[BLOGIC_MAX_ADAPTERS];
+					int mmcount = blogic_probeinfo_count - fpcount;
+
+					memcpy(saved_probeinfo,
+						blogic_probeinfo_list,
+						blogic_probeinfo_count * sizeof(struct blogic_probeinfo));
+					memcpy(&blogic_probeinfo_list[0],
+						&saved_probeinfo[fpcount],
+						mmcount * sizeof(struct blogic_probeinfo));
+					memcpy(&blogic_probeinfo_list[mmcount],
+						&saved_probeinfo[0],
+						fpcount * sizeof(struct blogic_probeinfo));
+				}
+			}
+		}
+	} else {
+		blogic_init_probeinfo_isa(adapter);
+	}
+}
+
+
+#else
+#define blogic_init_probeinfo_list(adapter) \
+		blogic_init_probeinfo_isa(adapter)
+#endif				/* CONFIG_PCI */
+
+
+/*
+  blogic_failure prints a standardized error message, and then returns false.
+*/
+
+static bool blogic_failure(struct blogic_adapter *adapter, char *msg)
+{
+	blogic_announce_drvr(adapter);
+	if (adapter->adapter_bus_type == BLOGIC_PCI_BUS) {
+		blogic_err("While configuring BusLogic PCI Host Adapter at\n",
+				adapter);
+		blogic_err("Bus %d Device %d I/O Address 0x%lX PCI Address 0x%lX:\n", adapter, adapter->bus, adapter->dev, adapter->io_addr, adapter->pci_addr);
+	} else
+		blogic_err("While configuring BusLogic Host Adapter at I/O Address 0x%lX:\n", adapter, adapter->io_addr);
+	blogic_err("%s FAILED - DETACHING\n", adapter, msg);
+	if (blogic_cmd_failure_reason != NULL)
+		blogic_err("ADDITIONAL FAILURE INFO - %s\n", adapter,
+				blogic_cmd_failure_reason);
+	return false;
+}
+
+
+/*
+  blogic_probe probes for a BusLogic Host Adapter.
+*/
+
+static bool __init blogic_probe(struct blogic_adapter *adapter)
+{
+	union blogic_stat_reg statusreg;
+	union blogic_int_reg intreg;
+	union blogic_geo_reg georeg;
+	/*
+	   FlashPoint Host Adapters are Probed by the FlashPoint SCCB Manager.
+	 */
+	if (blogic_flashpoint_type(adapter)) {
+		struct fpoint_info *fpinfo = &adapter->fpinfo;
+		fpinfo->base_addr = (u32) adapter->io_addr;
+		fpinfo->irq_ch = adapter->irq_ch;
+		fpinfo->present = false;
+		if (!(FlashPoint_ProbeHostAdapter(fpinfo) == 0 &&
+					fpinfo->present)) {
+			blogic_err("BusLogic: FlashPoint Host Adapter detected at PCI Bus %d Device %d\n", adapter, adapter->bus, adapter->dev);
+			blogic_err("BusLogic: I/O Address 0x%lX PCI Address 0x%lX, but FlashPoint\n", adapter, adapter->io_addr, adapter->pci_addr);
+			blogic_err("BusLogic: Probe Function failed to validate it.\n", adapter);
+			return false;
+		}
+		if (blogic_global_options.trace_probe)
+			blogic_notice("BusLogic_Probe(0x%lX): FlashPoint Found\n", adapter, adapter->io_addr);
+		/*
+		   Indicate the Host Adapter Probe completed successfully.
+		 */
+		return true;
+	}
+	/*
+	   Read the Status, Interrupt, and Geometry Registers to test if there are I/O
+	   ports that respond, and to check the values to determine if they are from a
+	   BusLogic Host Adapter.  A nonexistent I/O port will return 0xFF, in which
+	   case there is definitely no BusLogic Host Adapter at this base I/O Address.
+	   The test here is a subset of that used by the BusLogic Host Adapter BIOS.
+	 */
+	statusreg.all = blogic_rdstatus(adapter);
+	intreg.all = blogic_rdint(adapter);
+	georeg.all = blogic_rdgeom(adapter);
+	if (blogic_global_options.trace_probe)
+		blogic_notice("BusLogic_Probe(0x%lX): Status 0x%02X, Interrupt 0x%02X, Geometry 0x%02X\n", adapter, adapter->io_addr, statusreg.all, intreg.all, georeg.all);
+	if (statusreg.all == 0 || statusreg.sr.diag_active ||
+			statusreg.sr.cmd_param_busy || statusreg.sr.rsvd ||
+			statusreg.sr.cmd_invalid || intreg.ir.rsvd != 0)
+		return false;
+	/*
+	   Check the undocumented Geometry Register to test if there is
+	   an I/O port that responded.  Adaptec Host Adapters do not
+	   implement the Geometry Register, so this test helps serve to
+	   avoid incorrectly recognizing an Adaptec 1542A or 1542B as a
+	   BusLogic.  Unfortunately, the Adaptec 1542C series does respond
+	   to the Geometry Register I/O port, but it will be rejected
+	   later when the Inquire Extended Setup Information command is
+	   issued in blogic_checkadapter.  The AMI FastDisk Host Adapter
+	   is a BusLogic clone that implements the same interface as
+	   earlier BusLogic Host Adapters, including the undocumented
+	   commands, and is therefore supported by this driver. However,
+	   the AMI FastDisk always returns 0x00 upon reading the Geometry
+	   Register, so the extended translation option should always be
+	   left disabled on the AMI FastDisk.
+	 */
+	if (georeg.all == 0xFF)
+		return false;
+	/*
+	   Indicate the Host Adapter Probe completed successfully.
+	 */
+	return true;
+}
+
+
+/*
+  blogic_hwreset issues a Hardware Reset to the Host Adapter
+  and waits for Host Adapter Diagnostics to complete.  If hard_reset is true, a
+  Hard Reset is performed which also initiates a SCSI Bus Reset.  Otherwise, a
+  Soft Reset is performed which only resets the Host Adapter without forcing a
+  SCSI Bus Reset.
+*/
+
+static bool blogic_hwreset(struct blogic_adapter *adapter, bool hard_reset)
+{
+	union blogic_stat_reg statusreg;
+	int timeout;
+	/*
+	   FlashPoint Host Adapters are Hard Reset by the FlashPoint
+	   SCCB Manager.
+	 */
+	if (blogic_flashpoint_type(adapter)) {
+		struct fpoint_info *fpinfo = &adapter->fpinfo;
+		fpinfo->softreset = !hard_reset;
+		fpinfo->report_underrun = true;
+		adapter->cardhandle =
+			FlashPoint_HardwareResetHostAdapter(fpinfo);
+		if (adapter->cardhandle == (void *)FPOINT_BADCARD_HANDLE)
+			return false;
+		/*
+		   Indicate the Host Adapter Hard Reset completed successfully.
+		 */
+		return true;
+	}
+	/*
+	   Issue a Hard Reset or Soft Reset Command to the Host Adapter.
+	   The Host Adapter should respond by setting Diagnostic Active in
+	   the Status Register.
+	 */
+	if (hard_reset)
+		blogic_hardreset(adapter);
+	else
+		blogic_softreset(adapter);
+	/*
+	   Wait until Diagnostic Active is set in the Status Register.
+	 */
+	timeout = 5 * 10000;
+	while (--timeout >= 0) {
+		statusreg.all = blogic_rdstatus(adapter);
+		if (statusreg.sr.diag_active)
+			break;
+		udelay(100);
+	}
+	if (blogic_global_options.trace_hw_reset)
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Active, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+	if (timeout < 0)
+		return false;
+	/*
+	   Wait 100 microseconds to allow completion of any initial diagnostic
+	   activity which might leave the contents of the Status Register
+	   unpredictable.
+	 */
+	udelay(100);
+	/*
+	   Wait until Diagnostic Active is reset in the Status Register.
+	 */
+	timeout = 10 * 10000;
+	while (--timeout >= 0) {
+		statusreg.all = blogic_rdstatus(adapter);
+		if (!statusreg.sr.diag_active)
+			break;
+		udelay(100);
+	}
+	if (blogic_global_options.trace_hw_reset)
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Diagnostic Completed, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+	if (timeout < 0)
+		return false;
+	/*
+	   Wait until at least one of the Diagnostic Failure, Host Adapter
+	   Ready, or Data In Register Ready bits is set in the Status Register.
+	 */
+	timeout = 10000;
+	while (--timeout >= 0) {
+		statusreg.all = blogic_rdstatus(adapter);
+		if (statusreg.sr.diag_failed || statusreg.sr.adapter_ready ||
+				statusreg.sr.datain_ready)
+			break;
+		udelay(100);
+	}
+	if (blogic_global_options.trace_hw_reset)
+		blogic_notice("BusLogic_HardwareReset(0x%lX): Host Adapter Ready, Status 0x%02X\n", adapter, adapter->io_addr, statusreg.all);
+	if (timeout < 0)
+		return false;
+	/*
+	   If Diagnostic Failure is set or Host Adapter Ready is reset,
+	   then an error occurred during the Host Adapter diagnostics.
+	   If Data In Register Ready is set, then there is an Error Code
+	   available.
+	 */
+	if (statusreg.sr.diag_failed || !statusreg.sr.adapter_ready) {
+		blogic_cmd_failure_reason = NULL;
+		blogic_failure(adapter, "HARD RESET DIAGNOSTICS");
+		blogic_err("HOST ADAPTER STATUS REGISTER = %02X\n", adapter,
+				statusreg.all);
+		if (statusreg.sr.datain_ready)
+			blogic_err("HOST ADAPTER ERROR CODE = %d\n", adapter,
+					blogic_rddatain(adapter));
+		return false;
+	}
+	/*
+	   Indicate the Host Adapter Hard Reset completed successfully.
+	 */
+	return true;
+}
+
+
+/*
+  blogic_checkadapter checks to be sure this really is a BusLogic
+  Host Adapter.
+*/
+
+static bool __init blogic_checkadapter(struct blogic_adapter *adapter)
+{
+	struct blogic_ext_setup ext_setupinfo;
+	unsigned char req_replylen;
+	bool result = true;
+	/*
+	   FlashPoint Host Adapters do not require this protection.
+	 */
+	if (blogic_flashpoint_type(adapter))
+		return true;
+	/*
+	   Issue the Inquire Extended Setup Information command. Only genuine
+	   BusLogic Host Adapters and true clones support this command.
+	   Adaptec 1542C series Host Adapters that respond to the Geometry
+	   Register I/O port will fail this command.
+	 */
+	req_replylen = sizeof(ext_setupinfo);
+	if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
+				sizeof(req_replylen), &ext_setupinfo,
+				sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
+		result = false;
+	/*
+	   Provide tracing information if requested and return.
+	 */
+	if (blogic_global_options.trace_probe)
+		blogic_notice("BusLogic_Check(0x%lX): MultiMaster %s\n", adapter,
+				adapter->io_addr,
+				(result ? "Found" : "Not Found"));
+	return result;
+}
+
+
+/*
+  blogic_rdconfig reads the Configuration Information
+  from Host Adapter and initializes the Host Adapter structure.
+*/
+
+static bool __init blogic_rdconfig(struct blogic_adapter *adapter)
+{
+	struct blogic_board_id id;
+	struct blogic_config config;
+	struct blogic_setup_info setupinfo;
+	struct blogic_ext_setup ext_setupinfo;
+	unsigned char model[5];
+	unsigned char fw_ver_digit3;
+	unsigned char fw_ver_letter;
+	struct blogic_adapter_info adapter_info;
+	struct blogic_fetch_localram fetch_localram;
+	struct blogic_autoscsi autoscsi;
+	union blogic_geo_reg georeg;
+	unsigned char req_replylen;
+	unsigned char *tgt, ch;
+	int tgt_id, i;
+	/*
+	   Configuration Information for FlashPoint Host Adapters is
+	   provided in the fpoint_info structure by the FlashPoint
+	   SCCB Manager's Probe Function. Initialize fields in the
+	   Host Adapter structure from the fpoint_info structure.
+	 */
+	if (blogic_flashpoint_type(adapter)) {
+		struct fpoint_info *fpinfo = &adapter->fpinfo;
+		tgt = adapter->model;
+		*tgt++ = 'B';
+		*tgt++ = 'T';
+		*tgt++ = '-';
+		for (i = 0; i < sizeof(fpinfo->model); i++)
+			*tgt++ = fpinfo->model[i];
+		*tgt++ = '\0';
+		strcpy(adapter->fw_ver, FLASHPOINT_FW_VER);
+		adapter->scsi_id = fpinfo->scsi_id;
+		adapter->ext_trans_enable = fpinfo->ext_trans_enable;
+		adapter->parity = fpinfo->parity;
+		adapter->reset_enabled = !fpinfo->softreset;
+		adapter->level_int = true;
+		adapter->wide = fpinfo->wide;
+		adapter->differential = false;
+		adapter->scam = true;
+		adapter->ultra = true;
+		adapter->ext_lun = true;
+		adapter->terminfo_valid = true;
+		adapter->low_term = fpinfo->low_term;
+		adapter->high_term = fpinfo->high_term;
+		adapter->scam_enabled = fpinfo->scam_enabled;
+		adapter->scam_lev2 = fpinfo->scam_lev2;
+		adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
+		adapter->maxdev = (adapter->wide ? 16 : 8);
+		adapter->maxlun = 32;
+		adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
+		adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
+		adapter->drvr_qdepth = 255;
+		adapter->adapter_qdepth = adapter->drvr_qdepth;
+		adapter->sync_ok = fpinfo->sync_ok;
+		adapter->fast_ok = fpinfo->fast_ok;
+		adapter->ultra_ok = fpinfo->ultra_ok;
+		adapter->wide_ok = fpinfo->wide_ok;
+		adapter->discon_ok = fpinfo->discon_ok;
+		adapter->tagq_ok = 0xFFFF;
+		goto common;
+	}
+	/*
+	   Issue the Inquire Board ID command.
+	 */
+	if (blogic_cmd(adapter, BLOGIC_GET_BOARD_ID, NULL, 0, &id,
+				sizeof(id)) != sizeof(id))
+		return blogic_failure(adapter, "INQUIRE BOARD ID");
+	/*
+	   Issue the Inquire Configuration command.
+	 */
+	if (blogic_cmd(adapter, BLOGIC_INQ_CONFIG, NULL, 0, &config,
+				sizeof(config))
+	    != sizeof(config))
+		return blogic_failure(adapter, "INQUIRE CONFIGURATION");
+	/*
+	   Issue the Inquire Setup Information command.
+	 */
+	req_replylen = sizeof(setupinfo);
+	if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
+				sizeof(req_replylen), &setupinfo,
+				sizeof(setupinfo)) != sizeof(setupinfo))
+		return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
+	/*
+	   Issue the Inquire Extended Setup Information command.
+	 */
+	req_replylen = sizeof(ext_setupinfo);
+	if (blogic_cmd(adapter, BLOGIC_INQ_EXTSETUP, &req_replylen,
+				sizeof(req_replylen), &ext_setupinfo,
+				sizeof(ext_setupinfo)) != sizeof(ext_setupinfo))
+		return blogic_failure(adapter,
+					"INQUIRE EXTENDED SETUP INFORMATION");
+	/*
+	   Issue the Inquire Firmware Version 3rd Digit command.
+	 */
+	fw_ver_digit3 = '\0';
+	if (id.fw_ver_digit1 > '0')
+		if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_D3, NULL, 0,
+				&fw_ver_digit3,
+				sizeof(fw_ver_digit3)) != sizeof(fw_ver_digit3))
+			return blogic_failure(adapter,
+						"INQUIRE FIRMWARE 3RD DIGIT");
+	/*
+	   Issue the Inquire Host Adapter Model Number command.
+	 */
+	if (ext_setupinfo.bus_type == 'A' && id.fw_ver_digit1 == '2')
+		/* BusLogic BT-542B ISA 2.xx */
+		strcpy(model, "542B");
+	else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '2' &&
+			(id.fw_ver_digit2 <= '1' || (id.fw_ver_digit2 == '2' &&
+						     fw_ver_digit3 == '0')))
+		/* BusLogic BT-742A EISA 2.1x or 2.20 */
+		strcpy(model, "742A");
+	else if (ext_setupinfo.bus_type == 'E' && id.fw_ver_digit1 == '0')
+		/* AMI FastDisk EISA Series 441 0.x */
+		strcpy(model, "747A");
+	else {
+		req_replylen = sizeof(model);
+		if (blogic_cmd(adapter, BLOGIC_INQ_MODELNO, &req_replylen,
+					sizeof(req_replylen), &model,
+					sizeof(model)) != sizeof(model))
+			return blogic_failure(adapter,
+					"INQUIRE HOST ADAPTER MODEL NUMBER");
+	}
+	/*
+	   BusLogic MultiMaster Host Adapters can be identified by their
+	   model number and the major version number of their firmware
+	   as follows:
+
+	   5.xx       BusLogic "W" Series Host Adapters:
+	   BT-948/958/958D
+	   4.xx       BusLogic "C" Series Host Adapters:
+	   BT-946C/956C/956CD/747C/757C/757CD/445C/545C/540CF
+	   3.xx       BusLogic "S" Series Host Adapters:
+	   BT-747S/747D/757S/757D/445S/545S/542D
+	   BT-542B/742A (revision H)
+	   2.xx       BusLogic "A" Series Host Adapters:
+	   BT-542B/742A (revision G and below)
+	   0.xx       AMI FastDisk VLB/EISA BusLogic Clone Host Adapter
+	 */
+	/*
+	   Save the Model Name and Host Adapter Name in the Host Adapter
+	   structure.
+	 */
+	tgt = adapter->model;
+	*tgt++ = 'B';
+	*tgt++ = 'T';
+	*tgt++ = '-';
+	for (i = 0; i < sizeof(model); i++) {
+		ch = model[i];
+		if (ch == ' ' || ch == '\0')
+			break;
+		*tgt++ = ch;
+	}
+	*tgt++ = '\0';
+	/*
+	   Save the Firmware Version in the Host Adapter structure.
+	 */
+	tgt = adapter->fw_ver;
+	*tgt++ = id.fw_ver_digit1;
+	*tgt++ = '.';
+	*tgt++ = id.fw_ver_digit2;
+	if (fw_ver_digit3 != ' ' && fw_ver_digit3 != '\0')
+		*tgt++ = fw_ver_digit3;
+	*tgt = '\0';
+	/*
+	   Issue the Inquire Firmware Version Letter command.
+	 */
+	if (strcmp(adapter->fw_ver, "3.3") >= 0) {
+		if (blogic_cmd(adapter, BLOGIC_INQ_FWVER_LETTER, NULL, 0,
+				&fw_ver_letter,
+				sizeof(fw_ver_letter)) != sizeof(fw_ver_letter))
+			return blogic_failure(adapter,
+					"INQUIRE FIRMWARE VERSION LETTER");
+		if (fw_ver_letter != ' ' && fw_ver_letter != '\0')
+			*tgt++ = fw_ver_letter;
+		*tgt = '\0';
+	}
+	/*
+	   Save the Host Adapter SCSI ID in the Host Adapter structure.
+	 */
+	adapter->scsi_id = config.id;
+	/*
+	   Determine the Bus Type and save it in the Host Adapter structure,
+	   determine and save the IRQ Channel if necessary, and determine
+	   and save the DMA Channel for ISA Host Adapters.
+	 */
+	adapter->adapter_bus_type =
+			blogic_adater_bus_types[adapter->model[3] - '4'];
+	if (adapter->irq_ch == 0) {
+		if (config.irq_ch9)
+			adapter->irq_ch = 9;
+		else if (config.irq_ch10)
+			adapter->irq_ch = 10;
+		else if (config.irq_ch11)
+			adapter->irq_ch = 11;
+		else if (config.irq_ch12)
+			adapter->irq_ch = 12;
+		else if (config.irq_ch14)
+			adapter->irq_ch = 14;
+		else if (config.irq_ch15)
+			adapter->irq_ch = 15;
+	}
+	if (adapter->adapter_bus_type == BLOGIC_ISA_BUS) {
+		if (config.dma_ch5)
+			adapter->dma_ch = 5;
+		else if (config.dma_ch6)
+			adapter->dma_ch = 6;
+		else if (config.dma_ch7)
+			adapter->dma_ch = 7;
+	}
+	/*
+	   Determine whether Extended Translation is enabled and save it in
+	   the Host Adapter structure.
+	 */
+	georeg.all = blogic_rdgeom(adapter);
+	adapter->ext_trans_enable = georeg.gr.ext_trans_enable;
+	/*
+	   Save the Scatter Gather Limits, Level Sensitive Interrupt flag, Wide
+	   SCSI flag, Differential SCSI flag, SCAM Supported flag, and
+	   Ultra SCSI flag in the Host Adapter structure.
+	 */
+	adapter->adapter_sglimit = ext_setupinfo.sg_limit;
+	adapter->drvr_sglimit = adapter->adapter_sglimit;
+	if (adapter->adapter_sglimit > BLOGIC_SG_LIMIT)
+		adapter->drvr_sglimit = BLOGIC_SG_LIMIT;
+	if (ext_setupinfo.misc.level_int)
+		adapter->level_int = true;
+	adapter->wide = ext_setupinfo.wide;
+	adapter->differential = ext_setupinfo.differential;
+	adapter->scam = ext_setupinfo.scam;
+	adapter->ultra = ext_setupinfo.ultra;
+	/*
+	   Determine whether Extended LUN Format CCBs are supported and save the
+	   information in the Host Adapter structure.
+	 */
+	if (adapter->fw_ver[0] == '5' || (adapter->fw_ver[0] == '4' &&
+				adapter->wide))
+		adapter->ext_lun = true;
+	/*
+	   Issue the Inquire PCI Host Adapter Information command to read the
+	   Termination Information from "W" series MultiMaster Host Adapters.
+	 */
+	if (adapter->fw_ver[0] == '5') {
+		if (blogic_cmd(adapter, BLOGIC_INQ_PCI_INFO, NULL, 0,
+				&adapter_info,
+				sizeof(adapter_info)) != sizeof(adapter_info))
+			return blogic_failure(adapter,
+					"INQUIRE PCI HOST ADAPTER INFORMATION");
+		/*
+		   Save the Termination Information in the Host Adapter
+		   structure.
+		 */
+		if (adapter_info.genericinfo_valid) {
+			adapter->terminfo_valid = true;
+			adapter->low_term = adapter_info.low_term;
+			adapter->high_term = adapter_info.high_term;
+		}
+	}
+	/*
+	   Issue the Fetch Host Adapter Local RAM command to read the
+	   AutoSCSI data from "W" and "C" series MultiMaster Host Adapters.
+	 */
+	if (adapter->fw_ver[0] >= '4') {
+		fetch_localram.offset = BLOGIC_AUTOSCSI_BASE;
+		fetch_localram.count = sizeof(autoscsi);
+		if (blogic_cmd(adapter, BLOGIC_FETCH_LOCALRAM, &fetch_localram,
+					sizeof(fetch_localram), &autoscsi,
+					sizeof(autoscsi)) != sizeof(autoscsi))
+			return blogic_failure(adapter,
+						"FETCH HOST ADAPTER LOCAL RAM");
+		/*
+		   Save the Parity Checking Enabled, Bus Reset Enabled,
+		   and Termination Information in the Host Adapter structure.
+		 */
+		adapter->parity = autoscsi.parity;
+		adapter->reset_enabled = autoscsi.reset_enabled;
+		if (adapter->fw_ver[0] == '4') {
+			adapter->terminfo_valid = true;
+			adapter->low_term = autoscsi.low_term;
+			adapter->high_term = autoscsi.high_term;
+		}
+		/*
+		   Save the Wide Permitted, Fast Permitted, Synchronous
+		   Permitted, Disconnect Permitted, Ultra Permitted, and
+		   SCAM Information in the Host Adapter structure.
+		 */
+		adapter->wide_ok = autoscsi.wide_ok;
+		adapter->fast_ok = autoscsi.fast_ok;
+		adapter->sync_ok = autoscsi.sync_ok;
+		adapter->discon_ok = autoscsi.discon_ok;
+		if (adapter->ultra)
+			adapter->ultra_ok = autoscsi.ultra_ok;
+		if (adapter->scam) {
+			adapter->scam_enabled = autoscsi.scam_enabled;
+			adapter->scam_lev2 = autoscsi.scam_lev2;
+		}
+	}
+	/*
+	   Initialize fields in the Host Adapter structure for "S" and "A"
+	   series MultiMaster Host Adapters.
+	 */
+	if (adapter->fw_ver[0] < '4') {
+		if (setupinfo.sync) {
+			adapter->sync_ok = 0xFF;
+			if (adapter->adapter_bus_type == BLOGIC_EISA_BUS) {
+				if (ext_setupinfo.misc.fast_on_eisa)
+					adapter->fast_ok = 0xFF;
+				if (strcmp(adapter->model, "BT-757") == 0)
+					adapter->wide_ok = 0xFF;
+			}
+		}
+		adapter->discon_ok = 0xFF;
+		adapter->parity = setupinfo.parity;
+		adapter->reset_enabled = true;
+	}
+	/*
+	   Determine the maximum number of Target IDs and Logical Units
+	   supported by this driver for Wide and Narrow Host Adapters.
+	 */
+	adapter->maxdev = (adapter->wide ? 16 : 8);
+	adapter->maxlun = (adapter->ext_lun ? 32 : 8);
+	/*
+	   Select appropriate values for the Mailbox Count, Driver Queue Depth,
+	   Initial CCBs, and Incremental CCBs variables based on whether
+	   or not Strict Round Robin Mode is supported.  If Strict Round
+	   Robin Mode is supported, then there is no performance degradation
+	   in using the maximum possible number of Outgoing and Incoming
+	   Mailboxes and allowing the Tagged and Untagged Queue Depths to
+	   determine the actual utilization.  If Strict Round Robin Mode is
+	   not supported, then the Host Adapter must scan all the Outgoing
+	   Mailboxes whenever an Outgoing Mailbox entry is made, which can
+	   cause a substantial performance penalty.  The host adapters
+	   actually have room to store the following number of CCBs
+	   internally; that is, they can internally queue and manage this
+	   many active commands on the SCSI bus simultaneously.  Performance
+	   measurements demonstrate that the Driver Queue Depth should be
+	   set to the Mailbox Count, rather than the Host Adapter Queue
+	   Depth (internal CCB capacity), as it is more efficient to have the
+	   queued commands waiting in Outgoing Mailboxes if necessary than
+	   to block the process in the higher levels of the SCSI Subsystem.
+
+	   192          BT-948/958/958D
+	   100          BT-946C/956C/956CD/747C/757C/757CD/445C
+	   50   BT-545C/540CF
+	   30   BT-747S/747D/757S/757D/445S/545S/542D/542B/742A
+	 */
+	if (adapter->fw_ver[0] == '5')
+		adapter->adapter_qdepth = 192;
+	else if (adapter->fw_ver[0] == '4')
+		adapter->adapter_qdepth = (adapter->adapter_bus_type !=
+						BLOGIC_ISA_BUS ? 100 : 50);
+	else
+		adapter->adapter_qdepth = 30;
+	if (strcmp(adapter->fw_ver, "3.31") >= 0) {
+		adapter->strict_rr = true;
+		adapter->mbox_count = BLOGIC_MAX_MAILBOX;
+	} else {
+		adapter->strict_rr = false;
+		adapter->mbox_count = 32;
+	}
+	adapter->drvr_qdepth = adapter->mbox_count;
+	adapter->initccbs = 4 * BLOGIC_CCB_GRP_ALLOCSIZE;
+	adapter->inc_ccbs = BLOGIC_CCB_GRP_ALLOCSIZE;
+	/*
+	   Tagged Queuing support is available and operates properly on
+	   all "W" series MultiMaster Host Adapters, on "C" series
+	   MultiMaster Host Adapters with firmware version 4.22 and above,
+	   and on "S" series MultiMaster Host Adapters with firmware version
+	   3.35 and above.
+	 */
+	adapter->tagq_ok = 0;
+	switch (adapter->fw_ver[0]) {
+	case '5':
+		adapter->tagq_ok = 0xFFFF;
+		break;
+	case '4':
+		if (strcmp(adapter->fw_ver, "4.22") >= 0)
+			adapter->tagq_ok = 0xFFFF;
+		break;
+	case '3':
+		if (strcmp(adapter->fw_ver, "3.35") >= 0)
+			adapter->tagq_ok = 0xFFFF;
+		break;
+	}
+	/*
+	   Determine the Host Adapter BIOS Address if the BIOS is enabled and
+	   save it in the Host Adapter structure.  The BIOS is disabled if the
+	   bios_addr is 0.
+	 */
+	adapter->bios_addr = ext_setupinfo.bios_addr << 12;
+	/*
+	   ISA Host Adapters require Bounce Buffers if there is more than
+	   16MB memory.
+	 */
+	if (adapter->adapter_bus_type == BLOGIC_ISA_BUS &&
+			(void *) high_memory > (void *) MAX_DMA_ADDRESS)
+		adapter->need_bouncebuf = true;
+	/*
+	   BusLogic BT-445S Host Adapters prior to board revision E have a
+	   hardware bug whereby when the BIOS is enabled, transfers to/from
+	   the same address range the BIOS occupies modulo 16MB are handled
+	   incorrectly.  Only properly functioning BT-445S Host Adapters
+	   have firmware version 3.37, so require that ISA Bounce Buffers
+	   be used for the buggy BT-445S models if there is more than 16MB
+	   memory.
+	 */
+	if (adapter->bios_addr > 0 && strcmp(adapter->model, "BT-445S") == 0 &&
+			strcmp(adapter->fw_ver, "3.37") < 0 &&
+			(void *) high_memory > (void *) MAX_DMA_ADDRESS)
+		adapter->need_bouncebuf = true;
+	/*
+	   Initialize parameters common to MultiMaster and FlashPoint
+	   Host Adapters.
+	 */
+common:
+	/*
+	   Initialize the Host Adapter Full Model Name from the Model Name.
+	 */
+	strcpy(adapter->full_model, "BusLogic ");
+	strcat(adapter->full_model, adapter->model);
+	/*
+	   Select an appropriate value for the Tagged Queue Depth either from a
+	   BusLogic Driver Options specification, or based on whether this Host
+	   Adapter requires that ISA Bounce Buffers be used.  The Tagged Queue
+	   Depth is left at 0 for automatic determination in
+	   BusLogic_SelectQueueDepths. Initialize the Untagged Queue Depth.
+	 */
+	for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
+		unsigned char qdepth = 0;
+		if (adapter->drvr_opts != NULL &&
+				adapter->drvr_opts->qdepth[tgt_id] > 0)
+			qdepth = adapter->drvr_opts->qdepth[tgt_id];
+		else if (adapter->need_bouncebuf)
+			qdepth = BLOGIC_TAG_DEPTH_BB;
+		adapter->qdepth[tgt_id] = qdepth;
+	}
+	if (adapter->need_bouncebuf)
+		adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH_BB;
+	else
+		adapter->untag_qdepth = BLOGIC_UNTAG_DEPTH;
+	if (adapter->drvr_opts != NULL)
+		adapter->common_qdepth = adapter->drvr_opts->common_qdepth;
+	if (adapter->common_qdepth > 0 &&
+			adapter->common_qdepth < adapter->untag_qdepth)
+		adapter->untag_qdepth = adapter->common_qdepth;
+	/*
+	   Tagged Queuing is only allowed if Disconnect/Reconnect is permitted.
+	   Therefore, mask the Tagged Queuing Permitted Default bits with the
+	   Disconnect/Reconnect Permitted bits.
+	 */
+	adapter->tagq_ok &= adapter->discon_ok;
+	/*
+	   Combine the default Tagged Queuing Permitted bits with any
+	   BusLogic Driver Options Tagged Queuing specification.
+	 */
+	if (adapter->drvr_opts != NULL)
+		adapter->tagq_ok = (adapter->drvr_opts->tagq_ok &
+				adapter->drvr_opts->tagq_ok_mask) |
+			(adapter->tagq_ok & ~adapter->drvr_opts->tagq_ok_mask);
+
+	/*
+	   Select an appropriate value for Bus Settle Time either from a
+	   BusLogic Driver Options specification, or from
+	   BLOGIC_BUS_SETTLE_TIME.
+	 */
+	if (adapter->drvr_opts != NULL &&
+			adapter->drvr_opts->bus_settle_time > 0)
+		adapter->bus_settle_time = adapter->drvr_opts->bus_settle_time;
+	else
+		adapter->bus_settle_time = BLOGIC_BUS_SETTLE_TIME;
+	/*
+	   Indicate reading the Host Adapter Configuration completed
+	   successfully.
+	 */
+	return true;
+}
+
+
+/*
+  blogic_reportconfig reports the configuration of Host Adapter.
+*/
+
+static bool __init blogic_reportconfig(struct blogic_adapter *adapter)
+{
+	unsigned short alltgt_mask = (1 << adapter->maxdev) - 1;
+	unsigned short sync_ok, fast_ok;
+	unsigned short ultra_ok, wide_ok;
+	unsigned short discon_ok, tagq_ok;
+	bool common_syncneg, common_tagq_depth;
+	char syncstr[BLOGIC_MAXDEV + 1];
+	char widestr[BLOGIC_MAXDEV + 1];
+	char discon_str[BLOGIC_MAXDEV + 1];
+	char tagq_str[BLOGIC_MAXDEV + 1];
+	char *syncmsg = syncstr;
+	char *widemsg = widestr;
+	char *discon_msg = discon_str;
+	char *tagq_msg = tagq_str;
+	int tgt_id;
+
+	blogic_info("Configuring BusLogic Model %s %s%s%s%s SCSI Host Adapter\n", adapter, adapter->model, blogic_adapter_busnames[adapter->adapter_bus_type], (adapter->wide ? " Wide" : ""), (adapter->differential ? " Differential" : ""), (adapter->ultra ? " Ultra" : ""));
+	blogic_info("  Firmware Version: %s, I/O Address: 0x%lX, IRQ Channel: %d/%s\n", adapter, adapter->fw_ver, adapter->io_addr, adapter->irq_ch, (adapter->level_int ? "Level" : "Edge"));
+	if (adapter->adapter_bus_type != BLOGIC_PCI_BUS) {
+		blogic_info("  DMA Channel: ", adapter);
+		if (adapter->dma_ch > 0)
+			blogic_info("%d, ", adapter, adapter->dma_ch);
+		else
+			blogic_info("None, ", adapter);
+		if (adapter->bios_addr > 0)
+			blogic_info("BIOS Address: 0x%X, ", adapter,
+					adapter->bios_addr);
+		else
+			blogic_info("BIOS Address: None, ", adapter);
+	} else {
+		blogic_info("  PCI Bus: %d, Device: %d, Address: ", adapter,
+				adapter->bus, adapter->dev);
+		if (adapter->pci_addr > 0)
+			blogic_info("0x%lX, ", adapter, adapter->pci_addr);
+		else
+			blogic_info("Unassigned, ", adapter);
+	}
+	blogic_info("Host Adapter SCSI ID: %d\n", adapter, adapter->scsi_id);
+	blogic_info("  Parity Checking: %s, Extended Translation: %s\n",
+			adapter, (adapter->parity ? "Enabled" : "Disabled"),
+			(adapter->ext_trans_enable ? "Enabled" : "Disabled"));
+	alltgt_mask &= ~(1 << adapter->scsi_id);
+	sync_ok = adapter->sync_ok & alltgt_mask;
+	fast_ok = adapter->fast_ok & alltgt_mask;
+	ultra_ok = adapter->ultra_ok & alltgt_mask;
+	if ((blogic_multimaster_type(adapter) &&
+			(adapter->fw_ver[0] >= '4' ||
+			 adapter->adapter_bus_type == BLOGIC_EISA_BUS)) ||
+			blogic_flashpoint_type(adapter)) {
+		common_syncneg = false;
+		if (sync_ok == 0) {
+			syncmsg = "Disabled";
+			common_syncneg = true;
+		} else if (sync_ok == alltgt_mask) {
+			if (fast_ok == 0) {
+				syncmsg = "Slow";
+				common_syncneg = true;
+			} else if (fast_ok == alltgt_mask) {
+				if (ultra_ok == 0) {
+					syncmsg = "Fast";
+					common_syncneg = true;
+				} else if (ultra_ok == alltgt_mask) {
+					syncmsg = "Ultra";
+					common_syncneg = true;
+				}
+			}
+		}
+		if (!common_syncneg) {
+			for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+				syncstr[tgt_id] = ((!(sync_ok & (1 << tgt_id))) ? 'N' : (!(fast_ok & (1 << tgt_id)) ? 'S' : (!(ultra_ok & (1 << tgt_id)) ? 'F' : 'U')));
+			syncstr[adapter->scsi_id] = '#';
+			syncstr[adapter->maxdev] = '\0';
+		}
+	} else
+		syncmsg = (sync_ok == 0 ? "Disabled" : "Enabled");
+	wide_ok = adapter->wide_ok & alltgt_mask;
+	if (wide_ok == 0)
+		widemsg = "Disabled";
+	else if (wide_ok == alltgt_mask)
+		widemsg = "Enabled";
+	else {
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			widestr[tgt_id] = ((wide_ok & (1 << tgt_id)) ? 'Y' : 'N');
+		widestr[adapter->scsi_id] = '#';
+		widestr[adapter->maxdev] = '\0';
+	}
+	discon_ok = adapter->discon_ok & alltgt_mask;
+	if (discon_ok == 0)
+		discon_msg = "Disabled";
+	else if (discon_ok == alltgt_mask)
+		discon_msg = "Enabled";
+	else {
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			discon_str[tgt_id] = ((discon_ok & (1 << tgt_id)) ? 'Y' : 'N');
+		discon_str[adapter->scsi_id] = '#';
+		discon_str[adapter->maxdev] = '\0';
+	}
+	tagq_ok = adapter->tagq_ok & alltgt_mask;
+	if (tagq_ok == 0)
+		tagq_msg = "Disabled";
+	else if (tagq_ok == alltgt_mask)
+		tagq_msg = "Enabled";
+	else {
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			tagq_str[tgt_id] = ((tagq_ok & (1 << tgt_id)) ? 'Y' : 'N');
+		tagq_str[adapter->scsi_id] = '#';
+		tagq_str[adapter->maxdev] = '\0';
+	}
+	blogic_info("  Synchronous Negotiation: %s, Wide Negotiation: %s\n",
+			adapter, syncmsg, widemsg);
+	blogic_info("  Disconnect/Reconnect: %s, Tagged Queuing: %s\n", adapter,
+			discon_msg, tagq_msg);
+	if (blogic_multimaster_type(adapter)) {
+		blogic_info("  Scatter/Gather Limit: %d of %d segments, Mailboxes: %d\n", adapter, adapter->drvr_sglimit, adapter->adapter_sglimit, adapter->mbox_count);
+		blogic_info("  Driver Queue Depth: %d, Host Adapter Queue Depth: %d\n", adapter, adapter->drvr_qdepth, adapter->adapter_qdepth);
+	} else
+		blogic_info("  Driver Queue Depth: %d, Scatter/Gather Limit: %d segments\n", adapter, adapter->drvr_qdepth, adapter->drvr_sglimit);
+	blogic_info("  Tagged Queue Depth: ", adapter);
+	common_tagq_depth = true;
+	for (tgt_id = 1; tgt_id < adapter->maxdev; tgt_id++)
+		if (adapter->qdepth[tgt_id] != adapter->qdepth[0]) {
+			common_tagq_depth = false;
+			break;
+		}
+	if (common_tagq_depth) {
+		if (adapter->qdepth[0] > 0)
+			blogic_info("%d", adapter, adapter->qdepth[0]);
+		else
+			blogic_info("Automatic", adapter);
+	} else
+		blogic_info("Individual", adapter);
+	blogic_info(", Untagged Queue Depth: %d\n", adapter,
+			adapter->untag_qdepth);
+	if (adapter->terminfo_valid) {
+		if (adapter->wide)
+			blogic_info("  SCSI Bus Termination: %s", adapter,
+				(adapter->low_term ? (adapter->high_term ? "Both Enabled" : "Low Enabled") : (adapter->high_term ? "High Enabled" : "Both Disabled")));
+		else
+			blogic_info("  SCSI Bus Termination: %s", adapter,
+				(adapter->low_term ? "Enabled" : "Disabled"));
+		if (adapter->scam)
+			blogic_info(", SCAM: %s", adapter,
+				(adapter->scam_enabled ? (adapter->scam_lev2 ? "Enabled, Level 2" : "Enabled, Level 1") : "Disabled"));
+		blogic_info("\n", adapter);
+	}
+	/*
+	   Indicate reporting the Host Adapter configuration completed
+	   successfully.
+	 */
+	return true;
+}
+
+
+/*
+  blogic_getres acquires the system resources necessary to use
+  Host Adapter.
+*/
+
+static bool __init blogic_getres(struct blogic_adapter *adapter)
+{
+	if (adapter->irq_ch == 0) {
+		blogic_err("NO LEGAL INTERRUPT CHANNEL ASSIGNED - DETACHING\n",
+				adapter);
+		return false;
+	}
+	/*
+	   Acquire shared access to the IRQ Channel.
+	 */
+	if (request_irq(adapter->irq_ch, blogic_inthandler, IRQF_SHARED,
+				adapter->full_model, adapter) < 0) {
+		blogic_err("UNABLE TO ACQUIRE IRQ CHANNEL %d - DETACHING\n",
+				adapter, adapter->irq_ch);
+		return false;
+	}
+	adapter->irq_acquired = true;
+	/*
+	   Acquire exclusive access to the DMA Channel.
+	 */
+	if (adapter->dma_ch > 0) {
+		if (request_dma(adapter->dma_ch, adapter->full_model) < 0) {
+			blogic_err("UNABLE TO ACQUIRE DMA CHANNEL %d - DETACHING\n", adapter, adapter->dma_ch);
+			return false;
+		}
+		set_dma_mode(adapter->dma_ch, DMA_MODE_CASCADE);
+		enable_dma(adapter->dma_ch);
+		adapter->dma_chan_acquired = true;
+	}
+	/*
+	   Indicate the System Resource Acquisition completed successfully,
+	 */
+	return true;
+}
+
+
+/*
+  blogic_relres releases any system resources previously acquired
+  by blogic_getres.
+*/
+
+static void blogic_relres(struct blogic_adapter *adapter)
+{
+	/*
+	   Release shared access to the IRQ Channel.
+	 */
+	if (adapter->irq_acquired)
+		free_irq(adapter->irq_ch, adapter);
+	/*
+	   Release exclusive access to the DMA Channel.
+	 */
+	if (adapter->dma_chan_acquired)
+		free_dma(adapter->dma_ch);
+	/*
+	   Release any allocated memory structs not released elsewhere
+	 */
+	if (adapter->mbox_space)
+		dma_free_coherent(&adapter->pci_device->dev, adapter->mbox_sz,
+			adapter->mbox_space, adapter->mbox_space_handle);
+	pci_dev_put(adapter->pci_device);
+	adapter->mbox_space = NULL;
+	adapter->mbox_space_handle = 0;
+	adapter->mbox_sz = 0;
+}
+
+
+/*
+  blogic_initadapter initializes Host Adapter.  This is the only
+  function called during SCSI Host Adapter detection which modifies the state
+  of the Host Adapter from its initial power on or hard reset state.
+*/
+
+static bool blogic_initadapter(struct blogic_adapter *adapter)
+{
+	struct blogic_extmbox_req extmbox_req;
+	enum blogic_rr_req rr_req;
+	enum blogic_setccb_fmt setccb_fmt;
+	int tgt_id;
+
+	/*
+	   Initialize the pointers to the first and last CCBs that are
+	   queued for completion processing.
+	 */
+	adapter->firstccb = NULL;
+	adapter->lastccb = NULL;
+
+	/*
+	   Initialize the Bus Device Reset Pending CCB, Tagged Queuing Active,
+	   Command Successful Flag, Active Commands, and Commands Since Reset
+	   for each Target Device.
+	 */
+	for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
+		adapter->bdr_pend[tgt_id] = NULL;
+		adapter->tgt_flags[tgt_id].tagq_active = false;
+		adapter->tgt_flags[tgt_id].cmd_good = false;
+		adapter->active_cmds[tgt_id] = 0;
+		adapter->cmds_since_rst[tgt_id] = 0;
+	}
+
+	/*
+	   FlashPoint Host Adapters do not use Outgoing and Incoming Mailboxes.
+	 */
+	if (blogic_flashpoint_type(adapter))
+		goto done;
+
+	/*
+	   Initialize the Outgoing and Incoming Mailbox pointers.
+	 */
+	adapter->mbox_sz = adapter->mbox_count * (sizeof(struct blogic_outbox) + sizeof(struct blogic_inbox));
+	adapter->mbox_space = dma_alloc_coherent(&adapter->pci_device->dev,
+				adapter->mbox_sz, &adapter->mbox_space_handle,
+				GFP_KERNEL);
+	if (adapter->mbox_space == NULL)
+		return blogic_failure(adapter, "MAILBOX ALLOCATION");
+	adapter->first_outbox = (struct blogic_outbox *) adapter->mbox_space;
+	adapter->last_outbox = adapter->first_outbox + adapter->mbox_count - 1;
+	adapter->next_outbox = adapter->first_outbox;
+	adapter->first_inbox = (struct blogic_inbox *) (adapter->last_outbox + 1);
+	adapter->last_inbox = adapter->first_inbox + adapter->mbox_count - 1;
+	adapter->next_inbox = adapter->first_inbox;
+
+	/*
+	   Initialize the Outgoing and Incoming Mailbox structures.
+	 */
+	memset(adapter->first_outbox, 0,
+			adapter->mbox_count * sizeof(struct blogic_outbox));
+	memset(adapter->first_inbox, 0,
+			adapter->mbox_count * sizeof(struct blogic_inbox));
+
+	/*
+	   Initialize the Host Adapter's Pointer to the Outgoing/Incoming
+	   Mailboxes.
+	 */
+	extmbox_req.mbox_count = adapter->mbox_count;
+	extmbox_req.base_mbox_addr = (u32) adapter->mbox_space_handle;
+	if (blogic_cmd(adapter, BLOGIC_INIT_EXT_MBOX, &extmbox_req,
+				sizeof(extmbox_req), NULL, 0) < 0)
+		return blogic_failure(adapter, "MAILBOX INITIALIZATION");
+	/*
+	   Enable Strict Round Robin Mode if supported by the Host Adapter. In
+	   Strict Round Robin Mode, the Host Adapter only looks at the next
+	   Outgoing Mailbox for each new command, rather than scanning
+	   through all the Outgoing Mailboxes to find any that have new
+	   commands in them.  Strict Round Robin Mode is significantly more
+	   efficient.
+	 */
+	if (adapter->strict_rr) {
+		rr_req = BLOGIC_STRICT_RR_MODE;
+		if (blogic_cmd(adapter, BLOGIC_STRICT_RR, &rr_req,
+					sizeof(rr_req), NULL, 0) < 0)
+			return blogic_failure(adapter,
+					"ENABLE STRICT ROUND ROBIN MODE");
+	}
+
+	/*
+	   For Host Adapters that support Extended LUN Format CCBs, issue the
+	   Set CCB Format command to allow 32 Logical Units per Target Device.
+	 */
+	if (adapter->ext_lun) {
+		setccb_fmt = BLOGIC_EXT_LUN_CCB;
+		if (blogic_cmd(adapter, BLOGIC_SETCCB_FMT, &setccb_fmt,
+					sizeof(setccb_fmt), NULL, 0) < 0)
+			return blogic_failure(adapter, "SET CCB FORMAT");
+	}
+
+	/*
+	   Announce Successful Initialization.
+	 */
+done:
+	if (!adapter->adapter_initd) {
+		blogic_info("*** %s Initialized Successfully ***\n", adapter,
+				adapter->full_model);
+		blogic_info("\n", adapter);
+	} else
+		blogic_warn("*** %s Initialized Successfully ***\n", adapter,
+				adapter->full_model);
+	adapter->adapter_initd = true;
+
+	/*
+	   Indicate the Host Adapter Initialization completed successfully.
+	 */
+	return true;
+}
+
+
+/*
+  blogic_inquiry inquires about the Target Devices accessible
+  through Host Adapter.
+*/
+
+static bool __init blogic_inquiry(struct blogic_adapter *adapter)
+{
+	u16 installed_devs;
+	u8 installed_devs0to7[8];
+	struct blogic_setup_info setupinfo;
+	u8 sync_period[BLOGIC_MAXDEV];
+	unsigned char req_replylen;
+	int tgt_id;
+
+	/*
+	   Wait a few seconds between the Host Adapter Hard Reset which
+	   initiates a SCSI Bus Reset and issuing any SCSI Commands. Some
+	   SCSI devices get confused if they receive SCSI Commands too soon
+	   after a SCSI Bus Reset.
+	 */
+	blogic_delay(adapter->bus_settle_time);
+	/*
+	   FlashPoint Host Adapters do not provide for Target Device Inquiry.
+	 */
+	if (blogic_flashpoint_type(adapter))
+		return true;
+	/*
+	   Inhibit the Target Device Inquiry if requested.
+	 */
+	if (adapter->drvr_opts != NULL && adapter->drvr_opts->stop_tgt_inquiry)
+		return true;
+	/*
+	   Issue the Inquire Target Devices command for host adapters with
+	   firmware version 4.25 or later, or the Inquire Installed Devices
+	   ID 0 to 7 command for older host adapters.  This is necessary to
+	   force Synchronous Transfer Negotiation so that the Inquire Setup
+	   Information and Inquire Synchronous Period commands will return
+	   valid data.  The Inquire Target Devices command is preferable to
+	   Inquire Installed Devices ID 0 to 7 since it only probes Logical
+	   Unit 0 of each Target Device.
+	 */
+	if (strcmp(adapter->fw_ver, "4.25") >= 0) {
+
+		/*
+		   Issue a Inquire Target Devices command. Inquire Target
+		   Devices only tests Logical Unit 0 of each Target Device
+		   unlike the Inquire Installed Devices commands which test
+		   Logical Units 0 - 7.  Two bytes are returned, where byte
+		   0 bit 0 set indicates that Target Device 0 exists, and so on.
+		 */
+
+		if (blogic_cmd(adapter, BLOGIC_INQ_DEV, NULL, 0,
+					&installed_devs, sizeof(installed_devs))
+		    != sizeof(installed_devs))
+			return blogic_failure(adapter, "INQUIRE TARGET DEVICES");
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			adapter->tgt_flags[tgt_id].tgt_exists =
+				(installed_devs & (1 << tgt_id) ? true : false);
+	} else {
+
+		/*
+		   Issue an Inquire Installed Devices command. For each
+		   Target Device, a byte is returned where bit 0 set
+		   indicates that Logical Unit 0 * exists, bit 1 set
+		   indicates that Logical Unit 1 exists, and so on.
+		 */
+
+		if (blogic_cmd(adapter, BLOGIC_INQ_DEV0TO7, NULL, 0,
+				&installed_devs0to7, sizeof(installed_devs0to7))
+		    != sizeof(installed_devs0to7))
+			return blogic_failure(adapter,
+					"INQUIRE INSTALLED DEVICES ID 0 TO 7");
+		for (tgt_id = 0; tgt_id < 8; tgt_id++)
+			adapter->tgt_flags[tgt_id].tgt_exists =
+				installed_devs0to7[tgt_id] != 0;
+	}
+	/*
+	   Issue the Inquire Setup Information command.
+	 */
+	req_replylen = sizeof(setupinfo);
+	if (blogic_cmd(adapter, BLOGIC_INQ_SETUPINFO, &req_replylen,
+			sizeof(req_replylen), &setupinfo, sizeof(setupinfo))
+	    != sizeof(setupinfo))
+		return blogic_failure(adapter, "INQUIRE SETUP INFORMATION");
+	for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+		adapter->sync_offset[tgt_id] = (tgt_id < 8 ? setupinfo.sync0to7[tgt_id].offset : setupinfo.sync8to15[tgt_id - 8].offset);
+	if (strcmp(adapter->fw_ver, "5.06L") >= 0)
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			adapter->tgt_flags[tgt_id].wide_active = (tgt_id < 8 ? (setupinfo.wide_tx_active0to7 & (1 << tgt_id) ? true : false) : (setupinfo.wide_tx_active8to15 & (1 << (tgt_id - 8)) ? true : false));
+	/*
+	   Issue the Inquire Synchronous Period command.
+	 */
+	if (adapter->fw_ver[0] >= '3') {
+
+		/* Issue a Inquire Synchronous Period command. For each
+		   Target Device, a byte is returned which represents the
+		   Synchronous Transfer Period in units of 10 nanoseconds.
+		 */
+
+		req_replylen = sizeof(sync_period);
+		if (blogic_cmd(adapter, BLOGIC_INQ_SYNC_PERIOD, &req_replylen,
+				sizeof(req_replylen), &sync_period,
+				sizeof(sync_period)) != sizeof(sync_period))
+			return blogic_failure(adapter,
+					"INQUIRE SYNCHRONOUS PERIOD");
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			adapter->sync_period[tgt_id] = sync_period[tgt_id];
+	} else
+		for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+			if (setupinfo.sync0to7[tgt_id].offset > 0)
+				adapter->sync_period[tgt_id] = 20 + 5 * setupinfo.sync0to7[tgt_id].tx_period;
+	/*
+	   Indicate the Target Device Inquiry completed successfully.
+	 */
+	return true;
+}
+
+/*
+  blogic_inithoststruct initializes the fields in the SCSI Host
+  structure.  The base, io_port, n_io_ports, irq, and dma_channel fields in the
+  SCSI Host structure are intentionally left uninitialized, as this driver
+  handles acquisition and release of these resources explicitly, as well as
+  ensuring exclusive access to the Host Adapter hardware and data structures
+  through explicit acquisition and release of the Host Adapter's Lock.
+*/
+
+static void __init blogic_inithoststruct(struct blogic_adapter *adapter,
+		struct Scsi_Host *host)
+{
+	host->max_id = adapter->maxdev;
+	host->max_lun = adapter->maxlun;
+	host->max_channel = 0;
+	host->unique_id = adapter->io_addr;
+	host->this_id = adapter->scsi_id;
+	host->can_queue = adapter->drvr_qdepth;
+	host->sg_tablesize = adapter->drvr_sglimit;
+	host->unchecked_isa_dma = adapter->need_bouncebuf;
+	host->cmd_per_lun = adapter->untag_qdepth;
+}
+
+/*
+  blogic_slaveconfig will actually set the queue depth on individual
+  scsi devices as they are permanently added to the device chain.  We
+  shamelessly rip off the SelectQueueDepths code to make this work mostly
+  like it used to.  Since we don't get called once at the end of the scan
+  but instead get called for each device, we have to do things a bit
+  differently.
+*/
+static int blogic_slaveconfig(struct scsi_device *dev)
+{
+	struct blogic_adapter *adapter =
+		(struct blogic_adapter *) dev->host->hostdata;
+	int tgt_id = dev->id;
+	int qdepth = adapter->qdepth[tgt_id];
+
+	if (adapter->tgt_flags[tgt_id].tagq_ok &&
+			(adapter->tagq_ok & (1 << tgt_id))) {
+		if (qdepth == 0)
+			qdepth = BLOGIC_MAX_AUTO_TAG_DEPTH;
+		adapter->qdepth[tgt_id] = qdepth;
+		scsi_change_queue_depth(dev, qdepth);
+	} else {
+		adapter->tagq_ok &= ~(1 << tgt_id);
+		qdepth = adapter->untag_qdepth;
+		adapter->qdepth[tgt_id] = qdepth;
+		scsi_change_queue_depth(dev, qdepth);
+	}
+	qdepth = 0;
+	for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++)
+		if (adapter->tgt_flags[tgt_id].tgt_exists)
+			qdepth += adapter->qdepth[tgt_id];
+	if (qdepth > adapter->alloc_ccbs)
+		blogic_create_addlccbs(adapter, qdepth - adapter->alloc_ccbs,
+				false);
+	return 0;
+}
+
+/*
+  blogic_init probes for BusLogic Host Adapters at the standard
+  I/O Addresses where they may be located, initializing, registering, and
+  reporting the configuration of each BusLogic Host Adapter it finds.  It
+  returns the number of BusLogic Host Adapters successfully initialized and
+  registered.
+*/
+
+static int __init blogic_init(void)
+{
+	int adapter_count = 0, drvr_optindex = 0, probeindex;
+	struct blogic_adapter *adapter;
+	int ret = 0;
+
+#ifdef MODULE
+	if (BusLogic)
+		blogic_setup(BusLogic);
+#endif
+
+	if (blogic_probe_options.noprobe)
+		return -ENODEV;
+	blogic_probeinfo_list =
+	    kcalloc(BLOGIC_MAX_ADAPTERS, sizeof(struct blogic_probeinfo),
+			    GFP_KERNEL);
+	if (blogic_probeinfo_list == NULL) {
+		blogic_err("BusLogic: Unable to allocate Probe Info List\n",
+				NULL);
+		return -ENOMEM;
+	}
+
+	adapter = kzalloc(sizeof(struct blogic_adapter), GFP_KERNEL);
+	if (adapter == NULL) {
+		kfree(blogic_probeinfo_list);
+		blogic_err("BusLogic: Unable to allocate Prototype Host Adapter\n", NULL);
+		return -ENOMEM;
+	}
+
+#ifdef MODULE
+	if (BusLogic != NULL)
+		blogic_setup(BusLogic);
+#endif
+	blogic_init_probeinfo_list(adapter);
+	for (probeindex = 0; probeindex < blogic_probeinfo_count; probeindex++) {
+		struct blogic_probeinfo *probeinfo =
+			&blogic_probeinfo_list[probeindex];
+		struct blogic_adapter *myadapter = adapter;
+		struct Scsi_Host *host;
+
+		if (probeinfo->io_addr == 0)
+			continue;
+		memset(myadapter, 0, sizeof(struct blogic_adapter));
+		myadapter->adapter_type = probeinfo->adapter_type;
+		myadapter->adapter_bus_type = probeinfo->adapter_bus_type;
+		myadapter->io_addr = probeinfo->io_addr;
+		myadapter->pci_addr = probeinfo->pci_addr;
+		myadapter->bus = probeinfo->bus;
+		myadapter->dev = probeinfo->dev;
+		myadapter->pci_device = probeinfo->pci_device;
+		myadapter->irq_ch = probeinfo->irq_ch;
+		myadapter->addr_count =
+			blogic_adapter_addr_count[myadapter->adapter_type];
+
+		/*
+		   Make sure region is free prior to probing.
+		 */
+		if (!request_region(myadapter->io_addr, myadapter->addr_count,
+					"BusLogic"))
+			continue;
+		/*
+		   Probe the Host Adapter. If unsuccessful, abort further
+		   initialization.
+		 */
+		if (!blogic_probe(myadapter)) {
+			release_region(myadapter->io_addr,
+					myadapter->addr_count);
+			continue;
+		}
+		/*
+		   Hard Reset the Host Adapter.  If unsuccessful, abort further
+		   initialization.
+		 */
+		if (!blogic_hwreset(myadapter, true)) {
+			release_region(myadapter->io_addr,
+					myadapter->addr_count);
+			continue;
+		}
+		/*
+		   Check the Host Adapter.  If unsuccessful, abort further
+		   initialization.
+		 */
+		if (!blogic_checkadapter(myadapter)) {
+			release_region(myadapter->io_addr,
+					myadapter->addr_count);
+			continue;
+		}
+		/*
+		   Initialize the Driver Options field if provided.
+		 */
+		if (drvr_optindex < blogic_drvr_options_count)
+			myadapter->drvr_opts =
+				&blogic_drvr_options[drvr_optindex++];
+		/*
+		   Announce the Driver Version and Date, Author's Name,
+		   Copyright Notice, and Electronic Mail Address.
+		 */
+		blogic_announce_drvr(myadapter);
+		/*
+		   Register the SCSI Host structure.
+		 */
+
+		host = scsi_host_alloc(&blogic_template,
+				sizeof(struct blogic_adapter));
+		if (host == NULL) {
+			release_region(myadapter->io_addr,
+					myadapter->addr_count);
+			continue;
+		}
+		myadapter = (struct blogic_adapter *) host->hostdata;
+		memcpy(myadapter, adapter, sizeof(struct blogic_adapter));
+		myadapter->scsi_host = host;
+		myadapter->host_no = host->host_no;
+		/*
+		   Add Host Adapter to the end of the list of registered
+		   BusLogic Host Adapters.
+		 */
+		list_add_tail(&myadapter->host_list, &blogic_host_list);
+
+		/*
+		   Read the Host Adapter Configuration, Configure the Host
+		   Adapter, Acquire the System Resources necessary to use
+		   the Host Adapter, then Create the Initial CCBs, Initialize
+		   the Host Adapter, and finally perform Target Device
+		   Inquiry. From this point onward, any failure will be
+		   assumed to be due to a problem with the Host Adapter,
+		   rather than due to having mistakenly identified this port
+		   as belonging to a BusLogic Host Adapter. The I/O Address
+		   range will not be released, thereby preventing it from
+		   being incorrectly identified as any other type of Host
+		   Adapter.
+		 */
+		if (blogic_rdconfig(myadapter) &&
+		    blogic_reportconfig(myadapter) &&
+		    blogic_getres(myadapter) &&
+		    blogic_create_initccbs(myadapter) &&
+		    blogic_initadapter(myadapter) &&
+		    blogic_inquiry(myadapter)) {
+			/*
+			   Initialization has been completed successfully.
+			   Release and re-register usage of the I/O Address
+			   range so that the Model Name of the Host Adapter
+			   will appear, and initialize the SCSI Host structure.
+			 */
+			release_region(myadapter->io_addr,
+				       myadapter->addr_count);
+			if (!request_region(myadapter->io_addr,
+					    myadapter->addr_count,
+					    myadapter->full_model)) {
+				printk(KERN_WARNING
+					"BusLogic: Release and re-register of "
+					"port 0x%04lx failed \n",
+					(unsigned long)myadapter->io_addr);
+				blogic_destroy_ccbs(myadapter);
+				blogic_relres(myadapter);
+				list_del(&myadapter->host_list);
+				scsi_host_put(host);
+				ret = -ENOMEM;
+			} else {
+				blogic_inithoststruct(myadapter,
+								 host);
+				if (scsi_add_host(host, myadapter->pci_device
+						? &myadapter->pci_device->dev
+						  : NULL)) {
+					printk(KERN_WARNING
+					       "BusLogic: scsi_add_host()"
+					       "failed!\n");
+					blogic_destroy_ccbs(myadapter);
+					blogic_relres(myadapter);
+					list_del(&myadapter->host_list);
+					scsi_host_put(host);
+					ret = -ENODEV;
+				} else {
+					scsi_scan_host(host);
+					adapter_count++;
+				}
+			}
+		} else {
+			/*
+			   An error occurred during Host Adapter Configuration
+			   Querying, Host Adapter Configuration, Resource
+			   Acquisition, CCB Creation, Host Adapter
+			   Initialization, or Target Device Inquiry, so
+			   remove Host Adapter from the list of registered
+			   BusLogic Host Adapters, destroy the CCBs, Release
+			   the System Resources, and Unregister the SCSI
+			   Host.
+			 */
+			blogic_destroy_ccbs(myadapter);
+			blogic_relres(myadapter);
+			list_del(&myadapter->host_list);
+			scsi_host_put(host);
+			ret = -ENODEV;
+		}
+	}
+	kfree(adapter);
+	kfree(blogic_probeinfo_list);
+	blogic_probeinfo_list = NULL;
+	return ret;
+}
+
+
+/*
+  blogic_deladapter releases all resources previously acquired to
+  support a specific Host Adapter, including the I/O Address range, and
+  unregisters the BusLogic Host Adapter.
+*/
+
+static int __exit blogic_deladapter(struct blogic_adapter *adapter)
+{
+	struct Scsi_Host *host = adapter->scsi_host;
+
+	scsi_remove_host(host);
+
+	/*
+	   FlashPoint Host Adapters must first be released by the FlashPoint
+	   SCCB Manager.
+	 */
+	if (blogic_flashpoint_type(adapter))
+		FlashPoint_ReleaseHostAdapter(adapter->cardhandle);
+	/*
+	   Destroy the CCBs and release any system resources acquired to
+	   support Host Adapter.
+	 */
+	blogic_destroy_ccbs(adapter);
+	blogic_relres(adapter);
+	/*
+	   Release usage of the I/O Address range.
+	 */
+	release_region(adapter->io_addr, adapter->addr_count);
+	/*
+	   Remove Host Adapter from the list of registered BusLogic
+	   Host Adapters.
+	 */
+	list_del(&adapter->host_list);
+
+	scsi_host_put(host);
+	return 0;
+}
+
+
+/*
+  blogic_qcompleted_ccb queues CCB for completion processing.
+*/
+
+static void blogic_qcompleted_ccb(struct blogic_ccb *ccb)
+{
+	struct blogic_adapter *adapter = ccb->adapter;
+
+	ccb->status = BLOGIC_CCB_COMPLETE;
+	ccb->next = NULL;
+	if (adapter->firstccb == NULL) {
+		adapter->firstccb = ccb;
+		adapter->lastccb = ccb;
+	} else {
+		adapter->lastccb->next = ccb;
+		adapter->lastccb = ccb;
+	}
+	adapter->active_cmds[ccb->tgt_id]--;
+}
+
+
+/*
+  blogic_resultcode computes a SCSI Subsystem Result Code from
+  the Host Adapter Status and Target Device Status.
+*/
+
+static int blogic_resultcode(struct blogic_adapter *adapter,
+		enum blogic_adapter_status adapter_status,
+		enum blogic_tgt_status tgt_status)
+{
+	int hoststatus;
+
+	switch (adapter_status) {
+	case BLOGIC_CMD_CMPLT_NORMAL:
+	case BLOGIC_LINK_CMD_CMPLT:
+	case BLOGIC_LINK_CMD_CMPLT_FLAG:
+		hoststatus = DID_OK;
+		break;
+	case BLOGIC_SELECT_TIMEOUT:
+		hoststatus = DID_TIME_OUT;
+		break;
+	case BLOGIC_INVALID_OUTBOX_CODE:
+	case BLOGIC_INVALID_CMD_CODE:
+	case BLOGIC_BAD_CMD_PARAM:
+		blogic_warn("BusLogic Driver Protocol Error 0x%02X\n",
+				adapter, adapter_status);
+		fallthrough;
+	case BLOGIC_DATA_UNDERRUN:
+	case BLOGIC_DATA_OVERRUN:
+	case BLOGIC_NOEXPECT_BUSFREE:
+	case BLOGIC_LINKCCB_BADLUN:
+	case BLOGIC_AUTOREQSENSE_FAIL:
+	case BLOGIC_TAGQUEUE_REJECT:
+	case BLOGIC_BAD_MSG_RCVD:
+	case BLOGIC_HW_FAIL:
+	case BLOGIC_BAD_RECONNECT:
+	case BLOGIC_ABRT_QUEUE:
+	case BLOGIC_ADAPTER_SW_ERROR:
+	case BLOGIC_HW_TIMEOUT:
+	case BLOGIC_PARITY_ERR:
+		hoststatus = DID_ERROR;
+		break;
+	case BLOGIC_INVALID_BUSPHASE:
+	case BLOGIC_NORESPONSE_TO_ATN:
+	case BLOGIC_HW_RESET:
+	case BLOGIC_RST_FROM_OTHERDEV:
+	case BLOGIC_HW_BDR:
+		hoststatus = DID_RESET;
+		break;
+	default:
+		blogic_warn("Unknown Host Adapter Status 0x%02X\n", adapter,
+				adapter_status);
+		hoststatus = DID_ERROR;
+		break;
+	}
+	return (hoststatus << 16) | tgt_status;
+}
+
+
+/*
+  blogic_scan_inbox scans the Incoming Mailboxes saving any
+  Incoming Mailbox entries for completion processing.
+*/
+
+static void blogic_scan_inbox(struct blogic_adapter *adapter)
+{
+	/*
+	   Scan through the Incoming Mailboxes in Strict Round Robin
+	   fashion, saving any completed CCBs for further processing. It
+	   is essential that for each CCB and SCSI Command issued, command
+	   completion processing is performed exactly once.  Therefore,
+	   only Incoming Mailboxes with completion code Command Completed
+	   Without Error, Command Completed With Error, or Command Aborted
+	   At Host Request are saved for completion processing. When an
+	   Incoming Mailbox has a completion code of Aborted Command Not
+	   Found, the CCB had already completed or been aborted before the
+	   current Abort request was processed, and so completion processing
+	   has already occurred and no further action should be taken.
+	 */
+	struct blogic_inbox *next_inbox = adapter->next_inbox;
+	enum blogic_cmplt_code comp_code;
+
+	while ((comp_code = next_inbox->comp_code) != BLOGIC_INBOX_FREE) {
+		/*
+		   We are only allowed to do this because we limit our
+		   architectures we run on to machines where bus_to_virt(
+		   actually works.  There *needs* to be a dma_addr_to_virt()
+		   in the new PCI DMA mapping interface to replace
+		   bus_to_virt() or else this code is going to become very
+		   innefficient.
+		 */
+		struct blogic_ccb *ccb =
+			(struct blogic_ccb *) bus_to_virt(next_inbox->ccb);
+		if (comp_code != BLOGIC_CMD_NOTFOUND) {
+			if (ccb->status == BLOGIC_CCB_ACTIVE ||
+					ccb->status == BLOGIC_CCB_RESET) {
+				/*
+				   Save the Completion Code for this CCB and
+				   queue the CCB for completion processing.
+				 */
+				ccb->comp_code = comp_code;
+				blogic_qcompleted_ccb(ccb);
+			} else {
+				/*
+				   If a CCB ever appears in an Incoming Mailbox
+				   and is not marked as status Active or Reset,
+				   then there is most likely a bug in
+				   the Host Adapter firmware.
+				 */
+				blogic_warn("Illegal CCB #%ld status %d in Incoming Mailbox\n", adapter, ccb->serial, ccb->status);
+			}
+		}
+		next_inbox->comp_code = BLOGIC_INBOX_FREE;
+		if (++next_inbox > adapter->last_inbox)
+			next_inbox = adapter->first_inbox;
+	}
+	adapter->next_inbox = next_inbox;
+}
+
+
+/*
+  blogic_process_ccbs iterates over the completed CCBs for Host
+  Adapter setting the SCSI Command Result Codes, deallocating the CCBs, and
+  calling the SCSI Subsystem Completion Routines.  The Host Adapter's Lock
+  should already have been acquired by the caller.
+*/
+
+static void blogic_process_ccbs(struct blogic_adapter *adapter)
+{
+	if (adapter->processing_ccbs)
+		return;
+	adapter->processing_ccbs = true;
+	while (adapter->firstccb != NULL) {
+		struct blogic_ccb *ccb = adapter->firstccb;
+		struct scsi_cmnd *command = ccb->command;
+		adapter->firstccb = ccb->next;
+		if (adapter->firstccb == NULL)
+			adapter->lastccb = NULL;
+		/*
+		   Process the Completed CCB.
+		 */
+		if (ccb->opcode == BLOGIC_BDR) {
+			int tgt_id = ccb->tgt_id;
+
+			blogic_warn("Bus Device Reset CCB #%ld to Target %d Completed\n", adapter, ccb->serial, tgt_id);
+			blogic_inc_count(&adapter->tgt_stats[tgt_id].bdr_done);
+			adapter->tgt_flags[tgt_id].tagq_active = false;
+			adapter->cmds_since_rst[tgt_id] = 0;
+			adapter->last_resetdone[tgt_id] = jiffies;
+			/*
+			   Place CCB back on the Host Adapter's free list.
+			 */
+			blogic_dealloc_ccb(ccb, 1);
+#if 0			/* this needs to be redone different for new EH */
+			/*
+			   Bus Device Reset CCBs have the command field
+			   non-NULL only when a Bus Device Reset was requested
+			   for a command that did not have a currently active
+			   CCB in the Host Adapter (i.e., a Synchronous Bus
+			   Device Reset), and hence would not have its
+			   Completion Routine called otherwise.
+			 */
+			while (command != NULL) {
+				struct scsi_cmnd *nxt_cmd =
+					command->reset_chain;
+				command->reset_chain = NULL;
+				command->result = DID_RESET << 16;
+				command->scsi_done(command);
+				command = nxt_cmd;
+			}
+#endif
+			/*
+			   Iterate over the CCBs for this Host Adapter
+			   performing completion processing for any CCBs
+			   marked as Reset for this Target.
+			 */
+			for (ccb = adapter->all_ccbs; ccb != NULL;
+					ccb = ccb->next_all)
+				if (ccb->status == BLOGIC_CCB_RESET &&
+						ccb->tgt_id == tgt_id) {
+					command = ccb->command;
+					blogic_dealloc_ccb(ccb, 1);
+					adapter->active_cmds[tgt_id]--;
+					command->result = DID_RESET << 16;
+					command->scsi_done(command);
+				}
+			adapter->bdr_pend[tgt_id] = NULL;
+		} else {
+			/*
+			   Translate the Completion Code, Host Adapter Status,
+			   and Target Device Status into a SCSI Subsystem
+			   Result Code.
+			 */
+			switch (ccb->comp_code) {
+			case BLOGIC_INBOX_FREE:
+			case BLOGIC_CMD_NOTFOUND:
+			case BLOGIC_INVALID_CCB:
+				blogic_warn("CCB #%ld to Target %d Impossible State\n", adapter, ccb->serial, ccb->tgt_id);
+				break;
+			case BLOGIC_CMD_COMPLETE_GOOD:
+				adapter->tgt_stats[ccb->tgt_id]
+				    .cmds_complete++;
+				adapter->tgt_flags[ccb->tgt_id]
+				    .cmd_good = true;
+				command->result = DID_OK << 16;
+				break;
+			case BLOGIC_CMD_ABORT_BY_HOST:
+				blogic_warn("CCB #%ld to Target %d Aborted\n",
+					adapter, ccb->serial, ccb->tgt_id);
+				blogic_inc_count(&adapter->tgt_stats[ccb->tgt_id].aborts_done);
+				command->result = DID_ABORT << 16;
+				break;
+			case BLOGIC_CMD_COMPLETE_ERROR:
+				command->result = blogic_resultcode(adapter,
+					ccb->adapter_status, ccb->tgt_status);
+				if (ccb->adapter_status != BLOGIC_SELECT_TIMEOUT) {
+					adapter->tgt_stats[ccb->tgt_id]
+					    .cmds_complete++;
+					if (blogic_global_options.trace_err) {
+						int i;
+						blogic_notice("CCB #%ld Target %d: Result %X Host "
+								"Adapter Status %02X Target Status %02X\n", adapter, ccb->serial, ccb->tgt_id, command->result, ccb->adapter_status, ccb->tgt_status);
+						blogic_notice("CDB   ", adapter);
+						for (i = 0; i < ccb->cdblen; i++)
+							blogic_notice(" %02X", adapter, ccb->cdb[i]);
+						blogic_notice("\n", adapter);
+						blogic_notice("Sense ", adapter);
+						for (i = 0; i < ccb->sense_datalen; i++)
+							blogic_notice(" %02X", adapter, command->sense_buffer[i]);
+						blogic_notice("\n", adapter);
+					}
+				}
+				break;
+			}
+			/*
+			   When an INQUIRY command completes normally, save the
+			   CmdQue (Tagged Queuing Supported) and WBus16 (16 Bit
+			   Wide Data Transfers Supported) bits.
+			 */
+			if (ccb->cdb[0] == INQUIRY && ccb->cdb[1] == 0 &&
+				ccb->adapter_status == BLOGIC_CMD_CMPLT_NORMAL) {
+				struct blogic_tgt_flags *tgt_flags =
+					&adapter->tgt_flags[ccb->tgt_id];
+				struct scsi_inquiry *inquiry =
+					(struct scsi_inquiry *) scsi_sglist(command);
+				tgt_flags->tgt_exists = true;
+				tgt_flags->tagq_ok = inquiry->CmdQue;
+				tgt_flags->wide_ok = inquiry->WBus16;
+			}
+			/*
+			   Place CCB back on the Host Adapter's free list.
+			 */
+			blogic_dealloc_ccb(ccb, 1);
+			/*
+			   Call the SCSI Command Completion Routine.
+			 */
+			command->scsi_done(command);
+		}
+	}
+	adapter->processing_ccbs = false;
+}
+
+
+/*
+  blogic_inthandler handles hardware interrupts from BusLogic Host
+  Adapters.
+*/
+
+static irqreturn_t blogic_inthandler(int irq_ch, void *devid)
+{
+	struct blogic_adapter *adapter = (struct blogic_adapter *) devid;
+	unsigned long processor_flag;
+	/*
+	   Acquire exclusive access to Host Adapter.
+	 */
+	spin_lock_irqsave(adapter->scsi_host->host_lock, processor_flag);
+	/*
+	   Handle Interrupts appropriately for each Host Adapter type.
+	 */
+	if (blogic_multimaster_type(adapter)) {
+		union blogic_int_reg intreg;
+		/*
+		   Read the Host Adapter Interrupt Register.
+		 */
+		intreg.all = blogic_rdint(adapter);
+		if (intreg.ir.int_valid) {
+			/*
+			   Acknowledge the interrupt and reset the Host Adapter
+			   Interrupt Register.
+			 */
+			blogic_intreset(adapter);
+			/*
+			   Process valid External SCSI Bus Reset and Incoming
+			   Mailbox Loaded Interrupts. Command Complete
+			   Interrupts are noted, and Outgoing Mailbox Available
+			   Interrupts are ignored, as they are never enabled.
+			 */
+			if (intreg.ir.ext_busreset)
+				adapter->adapter_extreset = true;
+			else if (intreg.ir.mailin_loaded)
+				blogic_scan_inbox(adapter);
+			else if (intreg.ir.cmd_complete)
+				adapter->adapter_cmd_complete = true;
+		}
+	} else {
+		/*
+		   Check if there is a pending interrupt for this Host Adapter.
+		 */
+		if (FlashPoint_InterruptPending(adapter->cardhandle))
+			switch (FlashPoint_HandleInterrupt(adapter->cardhandle)) {
+			case FPOINT_NORMAL_INT:
+				break;
+			case FPOINT_EXT_RESET:
+				adapter->adapter_extreset = true;
+				break;
+			case FPOINT_INTERN_ERR:
+				blogic_warn("Internal FlashPoint Error detected - Resetting Host Adapter\n", adapter);
+				adapter->adapter_intern_err = true;
+				break;
+			}
+	}
+	/*
+	   Process any completed CCBs.
+	 */
+	if (adapter->firstccb != NULL)
+		blogic_process_ccbs(adapter);
+	/*
+	   Reset the Host Adapter if requested.
+	 */
+	if (adapter->adapter_extreset) {
+		blogic_warn("Resetting %s due to External SCSI Bus Reset\n", adapter, adapter->full_model);
+		blogic_inc_count(&adapter->ext_resets);
+		blogic_resetadapter(adapter, false);
+		adapter->adapter_extreset = false;
+	} else if (adapter->adapter_intern_err) {
+		blogic_warn("Resetting %s due to Host Adapter Internal Error\n", adapter, adapter->full_model);
+		blogic_inc_count(&adapter->adapter_intern_errors);
+		blogic_resetadapter(adapter, true);
+		adapter->adapter_intern_err = false;
+	}
+	/*
+	   Release exclusive access to Host Adapter.
+	 */
+	spin_unlock_irqrestore(adapter->scsi_host->host_lock, processor_flag);
+	return IRQ_HANDLED;
+}
+
+
+/*
+  blogic_write_outbox places CCB and Action Code into an Outgoing
+  Mailbox for execution by Host Adapter.  The Host Adapter's Lock should
+  already have been acquired by the caller.
+*/
+
+static bool blogic_write_outbox(struct blogic_adapter *adapter,
+		enum blogic_action action, struct blogic_ccb *ccb)
+{
+	struct blogic_outbox *next_outbox;
+
+	next_outbox = adapter->next_outbox;
+	if (next_outbox->action == BLOGIC_OUTBOX_FREE) {
+		ccb->status = BLOGIC_CCB_ACTIVE;
+		/*
+		   The CCB field must be written before the Action Code field
+		   since the Host Adapter is operating asynchronously and the
+		   locking code does not protect against simultaneous access
+		   by the Host Adapter.
+		 */
+		next_outbox->ccb = ccb->dma_handle;
+		next_outbox->action = action;
+		blogic_execmbox(adapter);
+		if (++next_outbox > adapter->last_outbox)
+			next_outbox = adapter->first_outbox;
+		adapter->next_outbox = next_outbox;
+		if (action == BLOGIC_MBOX_START) {
+			adapter->active_cmds[ccb->tgt_id]++;
+			if (ccb->opcode != BLOGIC_BDR)
+				adapter->tgt_stats[ccb->tgt_id].cmds_tried++;
+		}
+		return true;
+	}
+	return false;
+}
+
+/* Error Handling (EH) support */
+
+static int blogic_hostreset(struct scsi_cmnd *SCpnt)
+{
+	struct blogic_adapter *adapter =
+		(struct blogic_adapter *) SCpnt->device->host->hostdata;
+
+	unsigned int id = SCpnt->device->id;
+	struct blogic_tgt_stats *stats = &adapter->tgt_stats[id];
+	int rc;
+
+	spin_lock_irq(SCpnt->device->host->host_lock);
+
+	blogic_inc_count(&stats->adapter_reset_req);
+
+	rc = blogic_resetadapter(adapter, false);
+	spin_unlock_irq(SCpnt->device->host->host_lock);
+	return rc;
+}
+
+/*
+  blogic_qcmd creates a CCB for Command and places it into an
+  Outgoing Mailbox for execution by the associated Host Adapter.
+*/
+
+static int blogic_qcmd_lck(struct scsi_cmnd *command,
+		void (*comp_cb) (struct scsi_cmnd *))
+{
+	struct blogic_adapter *adapter =
+		(struct blogic_adapter *) command->device->host->hostdata;
+	struct blogic_tgt_flags *tgt_flags =
+		&adapter->tgt_flags[command->device->id];
+	struct blogic_tgt_stats *tgt_stats = adapter->tgt_stats;
+	unsigned char *cdb = command->cmnd;
+	int cdblen = command->cmd_len;
+	int tgt_id = command->device->id;
+	int lun = command->device->lun;
+	int buflen = scsi_bufflen(command);
+	int count;
+	struct blogic_ccb *ccb;
+	dma_addr_t sense_buf;
+
+	/*
+	   SCSI REQUEST_SENSE commands will be executed automatically by the
+	   Host Adapter for any errors, so they should not be executed
+	   explicitly unless the Sense Data is zero indicating that no error
+	   occurred.
+	 */
+	if (cdb[0] == REQUEST_SENSE && command->sense_buffer[0] != 0) {
+		command->result = DID_OK << 16;
+		comp_cb(command);
+		return 0;
+	}
+	/*
+	   Allocate a CCB from the Host Adapter's free list. In the unlikely
+	   event that there are none available and memory allocation fails,
+	   wait 1 second and try again. If that fails, the Host Adapter is
+	   probably hung so signal an error as a Host Adapter Hard Reset
+	   should be initiated soon.
+	 */
+	ccb = blogic_alloc_ccb(adapter);
+	if (ccb == NULL) {
+		spin_unlock_irq(adapter->scsi_host->host_lock);
+		blogic_delay(1);
+		spin_lock_irq(adapter->scsi_host->host_lock);
+		ccb = blogic_alloc_ccb(adapter);
+		if (ccb == NULL) {
+			command->result = DID_ERROR << 16;
+			comp_cb(command);
+			return 0;
+		}
+	}
+
+	/*
+	   Initialize the fields in the BusLogic Command Control Block (CCB).
+	 */
+	count = scsi_dma_map(command);
+	BUG_ON(count < 0);
+	if (count) {
+		struct scatterlist *sg;
+		int i;
+
+		ccb->opcode = BLOGIC_INITIATOR_CCB_SG;
+		ccb->datalen = count * sizeof(struct blogic_sg_seg);
+		if (blogic_multimaster_type(adapter))
+			ccb->data = (unsigned int) ccb->dma_handle +
+					((unsigned long) &ccb->sglist -
+					(unsigned long) ccb);
+		else
+			ccb->data = virt_to_32bit_virt(ccb->sglist);
+
+		scsi_for_each_sg(command, sg, count, i) {
+			ccb->sglist[i].segbytes = sg_dma_len(sg);
+			ccb->sglist[i].segdata = sg_dma_address(sg);
+		}
+	} else if (!count) {
+		ccb->opcode = BLOGIC_INITIATOR_CCB;
+		ccb->datalen = buflen;
+		ccb->data = 0;
+	}
+
+	switch (cdb[0]) {
+	case READ_6:
+	case READ_10:
+		ccb->datadir = BLOGIC_DATAIN_CHECKED;
+		tgt_stats[tgt_id].read_cmds++;
+		blogic_addcount(&tgt_stats[tgt_id].bytesread, buflen);
+		blogic_incszbucket(tgt_stats[tgt_id].read_sz_buckets, buflen);
+		break;
+	case WRITE_6:
+	case WRITE_10:
+		ccb->datadir = BLOGIC_DATAOUT_CHECKED;
+		tgt_stats[tgt_id].write_cmds++;
+		blogic_addcount(&tgt_stats[tgt_id].byteswritten, buflen);
+		blogic_incszbucket(tgt_stats[tgt_id].write_sz_buckets, buflen);
+		break;
+	default:
+		ccb->datadir = BLOGIC_UNCHECKED_TX;
+		break;
+	}
+	ccb->cdblen = cdblen;
+	ccb->adapter_status = 0;
+	ccb->tgt_status = 0;
+	ccb->tgt_id = tgt_id;
+	ccb->lun = lun;
+	ccb->tag_enable = false;
+	ccb->legacytag_enable = false;
+	/*
+	   BusLogic recommends that after a Reset the first couple of
+	   commands that are sent to a Target Device be sent in a non
+	   Tagged Queue fashion so that the Host Adapter and Target Device
+	   can establish Synchronous and Wide Transfer before Queue Tag
+	   messages can interfere with the Synchronous and Wide Negotiation
+	   messages.  By waiting to enable Tagged Queuing until after the
+	   first BLOGIC_MAX_TAG_DEPTH commands have been queued, it is
+	   assured that after a Reset any pending commands are requeued
+	   before Tagged Queuing is enabled and that the Tagged Queuing
+	   message will not occur while the partition table is being printed.
+	   In addition, some devices do not properly handle the transition
+	   from non-tagged to tagged commands, so it is necessary to wait
+	   until there are no pending commands for a target device
+	   before queuing tagged commands.
+	 */
+	if (adapter->cmds_since_rst[tgt_id]++ >= BLOGIC_MAX_TAG_DEPTH &&
+			!tgt_flags->tagq_active &&
+			adapter->active_cmds[tgt_id] == 0
+			&& tgt_flags->tagq_ok &&
+			(adapter->tagq_ok & (1 << tgt_id))) {
+		tgt_flags->tagq_active = true;
+		blogic_notice("Tagged Queuing now active for Target %d\n",
+					adapter, tgt_id);
+	}
+	if (tgt_flags->tagq_active) {
+		enum blogic_queuetag queuetag = BLOGIC_SIMPLETAG;
+		/*
+		   When using Tagged Queuing with Simple Queue Tags, it
+		   appears that disk drive controllers do not guarantee that
+		   a queued command will not remain in a disconnected state
+		   indefinitely if commands that read or write nearer the
+		   head position continue to arrive without interruption.
+		   Therefore, for each Target Device this driver keeps track
+		   of the last time either the queue was empty or an Ordered
+		   Queue Tag was issued. If more than 4 seconds (one fifth
+		   of the 20 second disk timeout) have elapsed since this
+		   last sequence point, this command will be issued with an
+		   Ordered Queue Tag rather than a Simple Queue Tag, which
+		   forces the Target Device to complete all previously
+		   queued commands before this command may be executed.
+		 */
+		if (adapter->active_cmds[tgt_id] == 0)
+			adapter->last_seqpoint[tgt_id] = jiffies;
+		else if (time_after(jiffies,
+				adapter->last_seqpoint[tgt_id] + 4 * HZ)) {
+			adapter->last_seqpoint[tgt_id] = jiffies;
+			queuetag = BLOGIC_ORDEREDTAG;
+		}
+		if (adapter->ext_lun) {
+			ccb->tag_enable = true;
+			ccb->queuetag = queuetag;
+		} else {
+			ccb->legacytag_enable = true;
+			ccb->legacy_tag = queuetag;
+		}
+	}
+	memcpy(ccb->cdb, cdb, cdblen);
+	ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
+	ccb->command = command;
+	sense_buf = dma_map_single(&adapter->pci_device->dev,
+				command->sense_buffer, ccb->sense_datalen,
+				DMA_FROM_DEVICE);
+	if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
+		blogic_err("DMA mapping for sense data buffer failed\n",
+				adapter);
+		blogic_dealloc_ccb(ccb, 0);
+		return SCSI_MLQUEUE_HOST_BUSY;
+	}
+	ccb->sensedata = sense_buf;
+	command->scsi_done = comp_cb;
+	if (blogic_multimaster_type(adapter)) {
+		/*
+		   Place the CCB in an Outgoing Mailbox. The higher levels
+		   of the SCSI Subsystem should not attempt to queue more
+		   commands than can be placed in Outgoing Mailboxes, so
+		   there should always be one free.  In the unlikely event
+		   that there are none available, wait 1 second and try
+		   again. If that fails, the Host Adapter is probably hung
+		   so signal an error as a Host Adapter Hard Reset should
+		   be initiated soon.
+		 */
+		if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START, ccb)) {
+			spin_unlock_irq(adapter->scsi_host->host_lock);
+			blogic_warn("Unable to write Outgoing Mailbox - Pausing for 1 second\n", adapter);
+			blogic_delay(1);
+			spin_lock_irq(adapter->scsi_host->host_lock);
+			if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
+						ccb)) {
+				blogic_warn("Still unable to write Outgoing Mailbox - Host Adapter Dead?\n", adapter);
+				blogic_dealloc_ccb(ccb, 1);
+				command->result = DID_ERROR << 16;
+				command->scsi_done(command);
+			}
+		}
+	} else {
+		/*
+		   Call the FlashPoint SCCB Manager to start execution of
+		   the CCB.
+		 */
+		ccb->status = BLOGIC_CCB_ACTIVE;
+		adapter->active_cmds[tgt_id]++;
+		tgt_stats[tgt_id].cmds_tried++;
+		FlashPoint_StartCCB(adapter->cardhandle, ccb);
+		/*
+		   The Command may have already completed and
+		   blogic_qcompleted_ccb been called, or it may still be
+		   pending.
+		 */
+		if (ccb->status == BLOGIC_CCB_COMPLETE)
+			blogic_process_ccbs(adapter);
+	}
+	return 0;
+}
+
+static DEF_SCSI_QCMD(blogic_qcmd)
+
+#if 0
+/*
+  blogic_abort aborts Command if possible.
+*/
+
+static int blogic_abort(struct scsi_cmnd *command)
+{
+	struct blogic_adapter *adapter =
+		(struct blogic_adapter *) command->device->host->hostdata;
+
+	int tgt_id = command->device->id;
+	struct blogic_ccb *ccb;
+	blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_request);
+
+	/*
+	   Attempt to find an Active CCB for this Command. If no Active
+	   CCB for this Command is found, then no Abort is necessary.
+	 */
+	for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
+		if (ccb->command == command)
+			break;
+	if (ccb == NULL) {
+		blogic_warn("Unable to Abort Command to Target %d - No CCB Found\n", adapter, tgt_id);
+		return SUCCESS;
+	} else if (ccb->status == BLOGIC_CCB_COMPLETE) {
+		blogic_warn("Unable to Abort Command to Target %d - CCB Completed\n", adapter, tgt_id);
+		return SUCCESS;
+	} else if (ccb->status == BLOGIC_CCB_RESET) {
+		blogic_warn("Unable to Abort Command to Target %d - CCB Reset\n", adapter, tgt_id);
+		return SUCCESS;
+	}
+	if (blogic_multimaster_type(adapter)) {
+		/*
+		   Attempt to Abort this CCB.  MultiMaster Firmware versions
+		   prior to 5.xx do not generate Abort Tag messages, but only
+		   generate the non-tagged Abort message.  Since non-tagged
+		   commands are not sent by the Host Adapter until the queue
+		   of outstanding tagged commands has completed, and the
+		   Abort message is treated as a non-tagged command, it is
+		   effectively impossible to abort commands when Tagged
+		   Queuing is active. Firmware version 5.xx does generate
+		   Abort Tag messages, so it is possible to abort commands
+		   when Tagged Queuing is active.
+		 */
+		if (adapter->tgt_flags[tgt_id].tagq_active &&
+				adapter->fw_ver[0] < '5') {
+			blogic_warn("Unable to Abort CCB #%ld to Target %d - Abort Tag Not Supported\n", adapter, ccb->serial, tgt_id);
+			return FAILURE;
+		} else if (blogic_write_outbox(adapter, BLOGIC_MBOX_ABORT,
+					ccb)) {
+			blogic_warn("Aborting CCB #%ld to Target %d\n",
+					adapter, ccb->serial, tgt_id);
+			blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
+			return SUCCESS;
+		} else {
+			blogic_warn("Unable to Abort CCB #%ld to Target %d - No Outgoing Mailboxes\n", adapter, ccb->serial, tgt_id);
+			return FAILURE;
+		}
+	} else {
+		/*
+		   Call the FlashPoint SCCB Manager to abort execution of
+		   the CCB.
+		 */
+		blogic_warn("Aborting CCB #%ld to Target %d\n", adapter,
+				ccb->serial, tgt_id);
+		blogic_inc_count(&adapter->tgt_stats[tgt_id].aborts_tried);
+		FlashPoint_AbortCCB(adapter->cardhandle, ccb);
+		/*
+		   The Abort may have already been completed and
+		   blogic_qcompleted_ccb been called, or it
+		   may still be pending.
+		 */
+		if (ccb->status == BLOGIC_CCB_COMPLETE)
+			blogic_process_ccbs(adapter);
+		return SUCCESS;
+	}
+	return SUCCESS;
+}
+
+#endif
+/*
+  blogic_resetadapter resets Host Adapter if possible, marking all
+  currently executing SCSI Commands as having been Reset.
+*/
+
+static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
+{
+	struct blogic_ccb *ccb;
+	int tgt_id;
+
+	/*
+	 * Attempt to Reset and Reinitialize the Host Adapter.
+	 */
+
+	if (!(blogic_hwreset(adapter, hard_reset) &&
+				blogic_initadapter(adapter))) {
+		blogic_err("Resetting %s Failed\n", adapter,
+						adapter->full_model);
+		return FAILURE;
+	}
+
+	/*
+	 * Deallocate all currently executing CCBs.
+	 */
+
+	for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
+		if (ccb->status == BLOGIC_CCB_ACTIVE)
+			blogic_dealloc_ccb(ccb, 1);
+	/*
+	 * Wait a few seconds between the Host Adapter Hard Reset which
+	 * initiates a SCSI Bus Reset and issuing any SCSI Commands.  Some
+	 * SCSI devices get confused if they receive SCSI Commands too soon
+	 * after a SCSI Bus Reset.
+	 */
+
+	if (hard_reset) {
+		spin_unlock_irq(adapter->scsi_host->host_lock);
+		blogic_delay(adapter->bus_settle_time);
+		spin_lock_irq(adapter->scsi_host->host_lock);
+	}
+
+	for (tgt_id = 0; tgt_id < adapter->maxdev; tgt_id++) {
+		adapter->last_resettried[tgt_id] = jiffies;
+		adapter->last_resetdone[tgt_id] = jiffies;
+	}
+	return SUCCESS;
+}
+
+/*
+  blogic_diskparam returns the Heads/Sectors/Cylinders BIOS Disk
+  Parameters for Disk.  The default disk geometry is 64 heads, 32 sectors, and
+  the appropriate number of cylinders so as not to exceed drive capacity.  In
+  order for disks equal to or larger than 1 GB to be addressable by the BIOS
+  without exceeding the BIOS limitation of 1024 cylinders, Extended Translation
+  may be enabled in AutoSCSI on FlashPoint Host Adapters and on "W" and "C"
+  series MultiMaster Host Adapters, or by a dip switch setting on "S" and "A"
+  series MultiMaster Host Adapters.  With Extended Translation enabled, drives
+  between 1 GB inclusive and 2 GB exclusive are given a disk geometry of 128
+  heads and 32 sectors, and drives above 2 GB inclusive are given a disk
+  geometry of 255 heads and 63 sectors.  However, if the BIOS detects that the
+  Extended Translation setting does not match the geometry in the partition
+  table, then the translation inferred from the partition table will be used by
+  the BIOS, and a warning may be displayed.
+*/
+
+static int blogic_diskparam(struct scsi_device *sdev, struct block_device *dev,
+		sector_t capacity, int *params)
+{
+	struct blogic_adapter *adapter =
+				(struct blogic_adapter *) sdev->host->hostdata;
+	struct bios_diskparam *diskparam = (struct bios_diskparam *) params;
+	unsigned char *buf;
+
+	if (adapter->ext_trans_enable && capacity >= 2 * 1024 * 1024 /* 1 GB in 512 byte sectors */) {
+		if (capacity >= 4 * 1024 * 1024 /* 2 GB in 512 byte sectors */) {
+			diskparam->heads = 255;
+			diskparam->sectors = 63;
+		} else {
+			diskparam->heads = 128;
+			diskparam->sectors = 32;
+		}
+	} else {
+		diskparam->heads = 64;
+		diskparam->sectors = 32;
+	}
+	diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
+	buf = scsi_bios_ptable(dev);
+	if (buf == NULL)
+		return 0;
+	/*
+	   If the boot sector partition table flag is valid, search for
+	   a partition table entry whose end_head matches one of the
+	   standard BusLogic geometry translations (64/32, 128/32, or 255/63).
+	 */
+	if (*(unsigned short *) (buf + 64) == MSDOS_LABEL_MAGIC) {
+		struct msdos_partition *part1_entry =
+				(struct msdos_partition *)buf;
+		struct msdos_partition *part_entry = part1_entry;
+		int saved_cyl = diskparam->cylinders, part_no;
+		unsigned char part_end_head = 0, part_end_sector = 0;
+
+		for (part_no = 0; part_no < 4; part_no++) {
+			part_end_head = part_entry->end_head;
+			part_end_sector = part_entry->end_sector & 0x3F;
+			if (part_end_head == 64 - 1) {
+				diskparam->heads = 64;
+				diskparam->sectors = 32;
+				break;
+			} else if (part_end_head == 128 - 1) {
+				diskparam->heads = 128;
+				diskparam->sectors = 32;
+				break;
+			} else if (part_end_head == 255 - 1) {
+				diskparam->heads = 255;
+				diskparam->sectors = 63;
+				break;
+			}
+			part_entry++;
+		}
+		if (part_no == 4) {
+			part_end_head = part1_entry->end_head;
+			part_end_sector = part1_entry->end_sector & 0x3F;
+		}
+		diskparam->cylinders = (unsigned long) capacity / (diskparam->heads * diskparam->sectors);
+		if (part_no < 4 && part_end_sector == diskparam->sectors) {
+			if (diskparam->cylinders != saved_cyl)
+				blogic_warn("Adopting Geometry %d/%d from Partition Table\n", adapter, diskparam->heads, diskparam->sectors);
+		} else if (part_end_head > 0 || part_end_sector > 0) {
+			blogic_warn("Warning: Partition Table appears to have Geometry %d/%d which is\n", adapter, part_end_head + 1, part_end_sector);
+			blogic_warn("not compatible with current BusLogic Host Adapter Geometry %d/%d\n", adapter, diskparam->heads, diskparam->sectors);
+		}
+	}
+	kfree(buf);
+	return 0;
+}
+
+
+/*
+  BugLogic_ProcDirectoryInfo implements /proc/scsi/BusLogic/<N>.
+*/
+
+static int blogic_write_info(struct Scsi_Host *shost, char *procbuf,
+				int bytes_avail)
+{
+	struct blogic_adapter *adapter =
+				(struct blogic_adapter *) shost->hostdata;
+	struct blogic_tgt_stats *tgt_stats;
+
+	tgt_stats = adapter->tgt_stats;
+	adapter->ext_resets = 0;
+	adapter->adapter_intern_errors = 0;
+	memset(tgt_stats, 0, BLOGIC_MAXDEV * sizeof(struct blogic_tgt_stats));
+	return 0;
+}
+
+static int blogic_show_info(struct seq_file *m, struct Scsi_Host *shost)
+{
+	struct blogic_adapter *adapter = (struct blogic_adapter *) shost->hostdata;
+	struct blogic_tgt_stats *tgt_stats;
+	int tgt;
+
+	tgt_stats = adapter->tgt_stats;
+	seq_write(m, adapter->msgbuf, adapter->msgbuflen);
+	seq_printf(m, "\n\
+Current Driver Queue Depth:	%d\n\
+Currently Allocated CCBs:	%d\n", adapter->drvr_qdepth, adapter->alloc_ccbs);
+	seq_puts(m, "\n\n\
+			   DATA TRANSFER STATISTICS\n\
+\n\
+Target	Tagged Queuing	Queue Depth  Active  Attempted	Completed\n\
+======	==============	===========  ======  =========	=========\n");
+	for (tgt = 0; tgt < adapter->maxdev; tgt++) {
+		struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
+		if (!tgt_flags->tgt_exists)
+			continue;
+		seq_printf(m, "  %2d	%s", tgt, (tgt_flags->tagq_ok ? (tgt_flags->tagq_active ? "    Active" : (adapter->tagq_ok & (1 << tgt)
+																				    ? "  Permitted" : "   Disabled"))
+									  : "Not Supported"));
+		seq_printf(m,
+				  "	    %3d       %3u    %9u	%9u\n", adapter->qdepth[tgt], adapter->active_cmds[tgt], tgt_stats[tgt].cmds_tried, tgt_stats[tgt].cmds_complete);
+	}
+	seq_puts(m, "\n\
+Target  Read Commands  Write Commands   Total Bytes Read    Total Bytes Written\n\
+======  =============  ==============  ===================  ===================\n");
+	for (tgt = 0; tgt < adapter->maxdev; tgt++) {
+		struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
+		if (!tgt_flags->tgt_exists)
+			continue;
+		seq_printf(m, "  %2d	  %9u	 %9u", tgt, tgt_stats[tgt].read_cmds, tgt_stats[tgt].write_cmds);
+		if (tgt_stats[tgt].bytesread.billions > 0)
+			seq_printf(m, "     %9u%09u", tgt_stats[tgt].bytesread.billions, tgt_stats[tgt].bytesread.units);
+		else
+			seq_printf(m, "		%9u", tgt_stats[tgt].bytesread.units);
+		if (tgt_stats[tgt].byteswritten.billions > 0)
+			seq_printf(m, "   %9u%09u\n", tgt_stats[tgt].byteswritten.billions, tgt_stats[tgt].byteswritten.units);
+		else
+			seq_printf(m, "	     %9u\n", tgt_stats[tgt].byteswritten.units);
+	}
+	seq_puts(m, "\n\
+Target  Command    0-1KB      1-2KB      2-4KB      4-8KB     8-16KB\n\
+======  =======  =========  =========  =========  =========  =========\n");
+	for (tgt = 0; tgt < adapter->maxdev; tgt++) {
+		struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
+		if (!tgt_flags->tgt_exists)
+			continue;
+		seq_printf(m,
+			    "  %2d	 Read	 %9u  %9u  %9u  %9u  %9u\n", tgt,
+			    tgt_stats[tgt].read_sz_buckets[0],
+			    tgt_stats[tgt].read_sz_buckets[1], tgt_stats[tgt].read_sz_buckets[2], tgt_stats[tgt].read_sz_buckets[3], tgt_stats[tgt].read_sz_buckets[4]);
+		seq_printf(m,
+			    "  %2d	 Write	 %9u  %9u  %9u  %9u  %9u\n", tgt,
+			    tgt_stats[tgt].write_sz_buckets[0],
+			    tgt_stats[tgt].write_sz_buckets[1], tgt_stats[tgt].write_sz_buckets[2], tgt_stats[tgt].write_sz_buckets[3], tgt_stats[tgt].write_sz_buckets[4]);
+	}
+	seq_puts(m, "\n\
+Target  Command   16-32KB    32-64KB   64-128KB   128-256KB   256KB+\n\
+======  =======  =========  =========  =========  =========  =========\n");
+	for (tgt = 0; tgt < adapter->maxdev; tgt++) {
+		struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
+		if (!tgt_flags->tgt_exists)
+			continue;
+		seq_printf(m,
+			    "  %2d	 Read	 %9u  %9u  %9u  %9u  %9u\n", tgt,
+			    tgt_stats[tgt].read_sz_buckets[5],
+			    tgt_stats[tgt].read_sz_buckets[6], tgt_stats[tgt].read_sz_buckets[7], tgt_stats[tgt].read_sz_buckets[8], tgt_stats[tgt].read_sz_buckets[9]);
+		seq_printf(m,
+			    "  %2d	 Write	 %9u  %9u  %9u  %9u  %9u\n", tgt,
+			    tgt_stats[tgt].write_sz_buckets[5],
+			    tgt_stats[tgt].write_sz_buckets[6], tgt_stats[tgt].write_sz_buckets[7], tgt_stats[tgt].write_sz_buckets[8], tgt_stats[tgt].write_sz_buckets[9]);
+	}
+	seq_puts(m, "\n\n\
+			   ERROR RECOVERY STATISTICS\n\
+\n\
+	  Command Aborts      Bus Device Resets	  Host Adapter Resets\n\
+Target	Requested Completed  Requested Completed  Requested Completed\n\
+  ID	\\\\\\\\ Attempted ////  \\\\\\\\ Attempted ////  \\\\\\\\ Attempted ////\n\
+======	 ===== ===== =====    ===== ===== =====	   ===== ===== =====\n");
+	for (tgt = 0; tgt < adapter->maxdev; tgt++) {
+		struct blogic_tgt_flags *tgt_flags = &adapter->tgt_flags[tgt];
+		if (!tgt_flags->tgt_exists)
+			continue;
+		seq_printf(m, "  %2d	 %5d %5d %5d    %5d %5d %5d	   %5d %5d %5d\n",
+			   tgt, tgt_stats[tgt].aborts_request,
+			   tgt_stats[tgt].aborts_tried,
+			   tgt_stats[tgt].aborts_done,
+			   tgt_stats[tgt].bdr_request,
+			   tgt_stats[tgt].bdr_tried,
+			   tgt_stats[tgt].bdr_done,
+			   tgt_stats[tgt].adapter_reset_req,
+			   tgt_stats[tgt].adapter_reset_attempt,
+			   tgt_stats[tgt].adapter_reset_done);
+	}
+	seq_printf(m, "\nExternal Host Adapter Resets: %d\n", adapter->ext_resets);
+	seq_printf(m, "Host Adapter Internal Errors: %d\n", adapter->adapter_intern_errors);
+	return 0;
+}
+
+
+/*
+  blogic_msg prints Driver Messages.
+*/
+
+static void blogic_msg(enum blogic_msglevel msglevel, char *fmt,
+			struct blogic_adapter *adapter, ...)
+{
+	static char buf[BLOGIC_LINEBUF_SIZE];
+	static bool begin = true;
+	va_list args;
+	int len = 0;
+
+	va_start(args, adapter);
+	len = vsprintf(buf, fmt, args);
+	va_end(args);
+	if (msglevel == BLOGIC_ANNOUNCE_LEVEL) {
+		static int msglines = 0;
+		strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
+		adapter->msgbuflen += len;
+		if (++msglines <= 2)
+			printk("%sscsi: %s", blogic_msglevelmap[msglevel], buf);
+	} else if (msglevel == BLOGIC_INFO_LEVEL) {
+		strcpy(&adapter->msgbuf[adapter->msgbuflen], buf);
+		adapter->msgbuflen += len;
+		if (begin) {
+			if (buf[0] != '\n' || len > 1)
+				printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
+		} else
+			pr_cont("%s", buf);
+	} else {
+		if (begin) {
+			if (adapter != NULL && adapter->adapter_initd)
+				printk("%sscsi%d: %s", blogic_msglevelmap[msglevel], adapter->host_no, buf);
+			else
+				printk("%s%s", blogic_msglevelmap[msglevel], buf);
+		} else
+			pr_cont("%s", buf);
+	}
+	begin = (buf[len - 1] == '\n');
+}
+
+
+/*
+  blogic_parse parses an individual option keyword.  It returns true
+  and updates the pointer if the keyword is recognized and false otherwise.
+*/
+
+static bool __init blogic_parse(char **str, char *keyword)
+{
+	char *pointer = *str;
+	while (*keyword != '\0') {
+		char strch = *pointer++;
+		char keywordch = *keyword++;
+		if (strch >= 'A' && strch <= 'Z')
+			strch += 'a' - 'Z';
+		if (keywordch >= 'A' && keywordch <= 'Z')
+			keywordch += 'a' - 'Z';
+		if (strch != keywordch)
+			return false;
+	}
+	*str = pointer;
+	return true;
+}
+
+
+/*
+  blogic_parseopts handles processing of BusLogic Driver Options
+  specifications.
+
+  BusLogic Driver Options may be specified either via the Linux Kernel Command
+  Line or via the Loadable Kernel Module Installation Facility.  Driver Options
+  for multiple host adapters may be specified either by separating the option
+  strings by a semicolon, or by specifying multiple "BusLogic=" strings on the
+  command line.  Individual option specifications for a single host adapter are
+  separated by commas.  The Probing and Debugging Options apply to all host
+  adapters whereas the remaining options apply individually only to the
+  selected host adapter.
+
+  The BusLogic Driver Probing Options are described in
+  <file:Documentation/scsi/BusLogic.rst>.
+*/
+
+static int __init blogic_parseopts(char *options)
+{
+	while (true) {
+		struct blogic_drvr_options *drvr_opts =
+			&blogic_drvr_options[blogic_drvr_options_count++];
+		int tgt_id;
+
+		memset(drvr_opts, 0, sizeof(struct blogic_drvr_options));
+		while (*options != '\0' && *options != ';') {
+			/* Probing Options. */
+			if (blogic_parse(&options, "IO:")) {
+				unsigned long io_addr = simple_strtoul(options,
+								&options, 0);
+				blogic_probe_options.limited_isa = true;
+				switch (io_addr) {
+				case 0x330:
+					blogic_probe_options.probe330 = true;
+					break;
+				case 0x334:
+					blogic_probe_options.probe334 = true;
+					break;
+				case 0x230:
+					blogic_probe_options.probe230 = true;
+					break;
+				case 0x234:
+					blogic_probe_options.probe234 = true;
+					break;
+				case 0x130:
+					blogic_probe_options.probe130 = true;
+					break;
+				case 0x134:
+					blogic_probe_options.probe134 = true;
+					break;
+				default:
+					blogic_err("BusLogic: Invalid Driver Options (invalid I/O Address 0x%lX)\n", NULL, io_addr);
+					return 0;
+				}
+			} else if (blogic_parse(&options, "NoProbeISA"))
+				blogic_probe_options.noprobe_isa = true;
+			else if (blogic_parse(&options, "NoProbePCI"))
+				blogic_probe_options.noprobe_pci = true;
+			else if (blogic_parse(&options, "NoProbe"))
+				blogic_probe_options.noprobe = true;
+			else if (blogic_parse(&options, "NoSortPCI"))
+				blogic_probe_options.nosort_pci = true;
+			else if (blogic_parse(&options, "MultiMasterFirst"))
+				blogic_probe_options.multimaster_first = true;
+			else if (blogic_parse(&options, "FlashPointFirst"))
+				blogic_probe_options.flashpoint_first = true;
+			/* Tagged Queuing Options. */
+			else if (blogic_parse(&options, "QueueDepth:[") ||
+					blogic_parse(&options, "QD:[")) {
+				for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++) {
+					unsigned short qdepth = simple_strtoul(options, &options, 0);
+					if (qdepth > BLOGIC_MAX_TAG_DEPTH) {
+						blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
+						return 0;
+					}
+					drvr_opts->qdepth[tgt_id] = qdepth;
+					if (*options == ',')
+						options++;
+					else if (*options == ']')
+						break;
+					else {
+						blogic_err("BusLogic: Invalid Driver Options (',' or ']' expected at '%s')\n", NULL, options);
+						return 0;
+					}
+				}
+				if (*options != ']') {
+					blogic_err("BusLogic: Invalid Driver Options (']' expected at '%s')\n", NULL, options);
+					return 0;
+				} else
+					options++;
+			} else if (blogic_parse(&options, "QueueDepth:") || blogic_parse(&options, "QD:")) {
+				unsigned short qdepth = simple_strtoul(options, &options, 0);
+				if (qdepth == 0 ||
+						qdepth > BLOGIC_MAX_TAG_DEPTH) {
+					blogic_err("BusLogic: Invalid Driver Options (invalid Queue Depth %d)\n", NULL, qdepth);
+					return 0;
+				}
+				drvr_opts->common_qdepth = qdepth;
+				for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
+					drvr_opts->qdepth[tgt_id] = qdepth;
+			} else if (blogic_parse(&options, "TaggedQueuing:") ||
+					blogic_parse(&options, "TQ:")) {
+				if (blogic_parse(&options, "Default")) {
+					drvr_opts->tagq_ok = 0x0000;
+					drvr_opts->tagq_ok_mask = 0x0000;
+				} else if (blogic_parse(&options, "Enable")) {
+					drvr_opts->tagq_ok = 0xFFFF;
+					drvr_opts->tagq_ok_mask = 0xFFFF;
+				} else if (blogic_parse(&options, "Disable")) {
+					drvr_opts->tagq_ok = 0x0000;
+					drvr_opts->tagq_ok_mask = 0xFFFF;
+				} else {
+					unsigned short tgt_bit;
+					for (tgt_id = 0, tgt_bit = 1;
+						tgt_id < BLOGIC_MAXDEV;
+						tgt_id++, tgt_bit <<= 1)
+						switch (*options++) {
+						case 'Y':
+							drvr_opts->tagq_ok |= tgt_bit;
+							drvr_opts->tagq_ok_mask |= tgt_bit;
+							break;
+						case 'N':
+							drvr_opts->tagq_ok &= ~tgt_bit;
+							drvr_opts->tagq_ok_mask |= tgt_bit;
+							break;
+						case 'X':
+							break;
+						default:
+							options--;
+							tgt_id = BLOGIC_MAXDEV;
+							break;
+						}
+				}
+			}
+			/* Miscellaneous Options. */
+			else if (blogic_parse(&options, "BusSettleTime:") ||
+					blogic_parse(&options, "BST:")) {
+				unsigned short bus_settle_time =
+					simple_strtoul(options, &options, 0);
+				if (bus_settle_time > 5 * 60) {
+					blogic_err("BusLogic: Invalid Driver Options (invalid Bus Settle Time %d)\n", NULL, bus_settle_time);
+					return 0;
+				}
+				drvr_opts->bus_settle_time = bus_settle_time;
+			} else if (blogic_parse(&options,
+						"InhibitTargetInquiry"))
+				drvr_opts->stop_tgt_inquiry = true;
+			/* Debugging Options. */
+			else if (blogic_parse(&options, "TraceProbe"))
+				blogic_global_options.trace_probe = true;
+			else if (blogic_parse(&options, "TraceHardwareReset"))
+				blogic_global_options.trace_hw_reset = true;
+			else if (blogic_parse(&options, "TraceConfiguration"))
+				blogic_global_options.trace_config = true;
+			else if (blogic_parse(&options, "TraceErrors"))
+				blogic_global_options.trace_err = true;
+			else if (blogic_parse(&options, "Debug")) {
+				blogic_global_options.trace_probe = true;
+				blogic_global_options.trace_hw_reset = true;
+				blogic_global_options.trace_config = true;
+				blogic_global_options.trace_err = true;
+			}
+			if (*options == ',')
+				options++;
+			else if (*options != ';' && *options != '\0') {
+				blogic_err("BusLogic: Unexpected Driver Option '%s' ignored\n", NULL, options);
+				*options = '\0';
+			}
+		}
+		if (!(blogic_drvr_options_count == 0 ||
+			blogic_probeinfo_count == 0 ||
+			blogic_drvr_options_count == blogic_probeinfo_count)) {
+			blogic_err("BusLogic: Invalid Driver Options (all or no I/O Addresses must be specified)\n", NULL);
+			return 0;
+		}
+		/*
+		   Tagged Queuing is disabled when the Queue Depth is 1 since queuing
+		   multiple commands is not possible.
+		 */
+		for (tgt_id = 0; tgt_id < BLOGIC_MAXDEV; tgt_id++)
+			if (drvr_opts->qdepth[tgt_id] == 1) {
+				unsigned short tgt_bit = 1 << tgt_id;
+				drvr_opts->tagq_ok &= ~tgt_bit;
+				drvr_opts->tagq_ok_mask |= tgt_bit;
+			}
+		if (*options == ';')
+			options++;
+		if (*options == '\0')
+			return 0;
+	}
+	return 1;
+}
+
+/*
+  Get it all started
+*/
+
+static struct scsi_host_template blogic_template = {
+	.module = THIS_MODULE,
+	.proc_name = "BusLogic",
+	.write_info = blogic_write_info,
+	.show_info = blogic_show_info,
+	.name = "BusLogic",
+	.info = blogic_drvr_info,
+	.queuecommand = blogic_qcmd,
+	.slave_configure = blogic_slaveconfig,
+	.bios_param = blogic_diskparam,
+	.eh_host_reset_handler = blogic_hostreset,
+#if 0
+	.eh_abort_handler = blogic_abort,
+#endif
+	.unchecked_isa_dma = 1,
+	.max_sectors = 128,
+};
+
+/*
+  blogic_setup handles processing of Kernel Command Line Arguments.
+*/
+
+static int __init blogic_setup(char *str)
+{
+	int ints[3];
+
+	(void) get_options(str, ARRAY_SIZE(ints), ints);
+
+	if (ints[0] != 0) {
+		blogic_err("BusLogic: Obsolete Command Line Entry Format Ignored\n", NULL);
+		return 0;
+	}
+	if (str == NULL || *str == '\0')
+		return 0;
+	return blogic_parseopts(str);
+}
+
+/*
+ * Exit function.  Deletes all hosts associated with this driver.
+ */
+
+static void __exit blogic_exit(void)
+{
+	struct blogic_adapter *ha, *next;
+
+	list_for_each_entry_safe(ha, next, &blogic_host_list, host_list)
+		blogic_deladapter(ha);
+}
+
+__setup("BusLogic=", blogic_setup);
+
+#ifdef MODULE
+/*static struct pci_device_id blogic_pci_tbl[] = {
+	{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ }
+};*/
+static const struct pci_device_id blogic_pci_tbl[] = {
+	{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_MULTIMASTER_NC)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BUSLOGIC, PCI_DEVICE_ID_BUSLOGIC_FLASHPOINT)},
+	{0, },
+};
+#endif
+MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
+
+module_init(blogic_init);
+module_exit(blogic_exit);