Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 4388 insertions, 0 deletions

diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
new file mode 100644
index 000000000..1e7f4d138
--- /dev/null
+++ b/drivers/scsi/qla1280.c
@@ -0,0 +1,4388 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/******************************************************************************
+*                  QLOGIC LINUX SOFTWARE
+*
+* QLogic  QLA1280 (Ultra2)  and  QLA12160 (Ultra3) SCSI driver
+* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
+* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
+* Copyright (C) 2003-2004 Christoph Hellwig
+*
+******************************************************************************/
+#define QLA1280_VERSION      "3.27.1"
+/*****************************************************************************
+    Revision History:
+    Rev  3.27.1, February 8, 2010, Michael Reed
+	- Retain firmware image for error recovery.
+    Rev  3.27, February 10, 2009, Michael Reed
+	- General code cleanup.
+	- Improve error recovery.
+    Rev  3.26, January 16, 2006 Jes Sorensen
+	- Ditch all < 2.6 support
+    Rev  3.25.1, February 10, 2005 Christoph Hellwig
+	- use pci_map_single to map non-S/G requests
+	- remove qla1280_proc_info
+    Rev  3.25, September 28, 2004, Christoph Hellwig
+	- add support for ISP1020/1040
+	- don't include "scsi.h" anymore for 2.6.x
+    Rev  3.24.4 June 7, 2004 Christoph Hellwig
+	- restructure firmware loading, cleanup initialization code
+	- prepare support for ISP1020/1040 chips
+    Rev  3.24.3 January 19, 2004, Jes Sorensen
+	- Handle PCI DMA mask settings correctly
+	- Correct order of error handling in probe_one, free_irq should not
+	  be called if request_irq failed
+    Rev  3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
+	- Big endian fixes (James)
+	- Remove bogus IOCB content on zero data transfer commands (Andrew)
+    Rev  3.24.1 January 5, 2004, Jes Sorensen
+	- Initialize completion queue to avoid OOPS on probe
+	- Handle interrupts during mailbox testing
+    Rev  3.24 November 17, 2003, Christoph Hellwig
+    	- use struct list_head for completion queue
+	- avoid old Scsi_FOO typedefs
+	- cleanup 2.4 compat glue a bit
+	- use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
+	- make initialization for memory mapped vs port I/O more similar
+	- remove broken pci config space manipulation
+	- kill more cruft
+	- this is an almost perfect 2.6 scsi driver now! ;)
+    Rev  3.23.39 December 17, 2003, Jes Sorensen
+	- Delete completion queue from srb if mailbox command failed to
+	  to avoid qla1280_done completeting qla1280_error_action's
+	  obsolete context
+	- Reduce arguments for qla1280_done
+    Rev  3.23.38 October 18, 2003, Christoph Hellwig
+	- Convert to new-style hotplugable driver for 2.6
+	- Fix missing scsi_unregister/scsi_host_put on HBA removal
+	- Kill some more cruft
+    Rev  3.23.37 October 1, 2003, Jes Sorensen
+	- Make MMIO depend on CONFIG_X86_VISWS instead of yet another
+	  random CONFIG option
+	- Clean up locking in probe path
+    Rev  3.23.36 October 1, 2003, Christoph Hellwig
+	- queuecommand only ever receives new commands - clear flags
+	- Reintegrate lost fixes from Linux 2.5
+    Rev  3.23.35 August 14, 2003, Jes Sorensen
+	- Build against 2.6
+    Rev  3.23.34 July 23, 2003, Jes Sorensen
+	- Remove pointless TRUE/FALSE macros
+	- Clean up vchan handling
+    Rev  3.23.33 July 3, 2003, Jes Sorensen
+	- Don't define register access macros before define determining MMIO.
+	  This just happened to work out on ia64 but not elsewhere.
+	- Don't try and read from the card while it is in reset as
+	  it won't respond and causes an MCA
+    Rev  3.23.32 June 23, 2003, Jes Sorensen
+	- Basic support for boot time arguments
+    Rev  3.23.31 June 8, 2003, Jes Sorensen
+	- Reduce boot time messages
+    Rev  3.23.30 June 6, 2003, Jes Sorensen
+	- Do not enable sync/wide/ppr before it has been determined
+	  that the target device actually supports it
+	- Enable DMA arbitration for multi channel controllers
+    Rev  3.23.29 June 3, 2003, Jes Sorensen
+	- Port to 2.5.69
+    Rev  3.23.28 June 3, 2003, Jes Sorensen
+	- Eliminate duplicate marker commands on bus resets
+	- Handle outstanding commands appropriately on bus/device resets
+    Rev  3.23.27 May 28, 2003, Jes Sorensen
+	- Remove bogus input queue code, let the Linux SCSI layer do the work
+	- Clean up NVRAM handling, only read it once from the card
+	- Add a number of missing default nvram parameters
+    Rev  3.23.26 Beta May 28, 2003, Jes Sorensen
+	- Use completion queue for mailbox commands instead of busy wait
+    Rev  3.23.25 Beta May 27, 2003, James Bottomley
+	- Migrate to use new error handling code
+    Rev  3.23.24 Beta May 21, 2003, James Bottomley
+	- Big endian support
+	- Cleanup data direction code
+    Rev  3.23.23 Beta May 12, 2003, Jes Sorensen
+	- Switch to using MMIO instead of PIO
+    Rev  3.23.22 Beta April 15, 2003, Jes Sorensen
+	- Fix PCI parity problem with 12160 during reset.
+    Rev  3.23.21 Beta April 14, 2003, Jes Sorensen
+	- Use pci_map_page()/pci_unmap_page() instead of map_single version.
+    Rev  3.23.20 Beta April 9, 2003, Jes Sorensen
+	- Remove < 2.4.x support
+	- Introduce HOST_LOCK to make the spin lock changes portable.
+	- Remove a bunch of idiotic and unnecessary typedef's
+	- Kill all leftovers of target-mode support which never worked anyway
+    Rev  3.23.19 Beta April 11, 2002, Linus Torvalds
+	- Do qla1280_pci_config() before calling request_irq() and
+	  request_region()
+	- Use pci_dma_hi32() to handle upper word of DMA addresses instead
+	  of large shifts
+	- Hand correct arguments to free_irq() in case of failure
+    Rev  3.23.18 Beta April 11, 2002, Jes Sorensen
+	- Run source through Lindent and clean up the output
+    Rev  3.23.17 Beta April 11, 2002, Jes Sorensen
+	- Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
+    Rev  3.23.16 Beta March 19, 2002, Jes Sorensen
+	- Rely on mailbox commands generating interrupts - do not
+	  run qla1280_isr() from ql1280_mailbox_command()
+	- Remove device_reg_t
+	- Integrate ql12160_set_target_parameters() with 1280 version
+	- Make qla1280_setup() non static
+	- Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
+	  sent to the card - this command pauses the firmware!!!
+    Rev  3.23.15 Beta March 19, 2002, Jes Sorensen
+	- Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
+	- Remove a pile of pointless and confusing (srb_t **) and
+	  (scsi_lu_t *) typecasts
+	- Explicit mark that we do not use the new error handling (for now)
+	- Remove scsi_qla_host_t and use 'struct' instead
+	- Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
+	  pci_64bit_slot flags which weren't used for anything anyway
+	- Grab host->host_lock while calling qla1280_isr() from abort()
+	- Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
+	  do not need to save/restore flags in the interrupt handler
+	- Enable interrupts early (before any mailbox access) in preparation
+	  for cleaning up the mailbox handling
+    Rev  3.23.14 Beta March 14, 2002, Jes Sorensen
+	- Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
+	  it with proper use of dprintk().
+	- Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
+	  a debug level argument to determine if data is to be printed
+	- Add KERN_* info to printk()
+    Rev  3.23.13 Beta March 14, 2002, Jes Sorensen
+	- Significant cosmetic cleanups
+	- Change debug code to use dprintk() and remove #if mess
+    Rev  3.23.12 Beta March 13, 2002, Jes Sorensen
+	- More cosmetic cleanups, fix places treating return as function
+	- use cpu_relax() in qla1280_debounce_register()
+    Rev  3.23.11 Beta March 13, 2002, Jes Sorensen
+	- Make it compile under 2.5.5
+    Rev  3.23.10 Beta October 1, 2001, Jes Sorensen
+	- Do no typecast short * to long * in QL1280BoardTbl, this
+	  broke miserably on big endian boxes
+    Rev  3.23.9 Beta September 30, 2001, Jes Sorensen
+	- Remove pre 2.2 hack for checking for reentrance in interrupt handler
+	- Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
+	  unsigned int to match the types from struct scsi_cmnd
+    Rev  3.23.8 Beta September 29, 2001, Jes Sorensen
+	- Remove bogus timer_t typedef from qla1280.h
+	- Remove obsolete pre 2.2 PCI setup code, use proper #define's
+	  for PCI_ values, call pci_set_master()
+	- Fix memleak of qla1280_buffer on module unload
+	- Only compile module parsing code #ifdef MODULE - should be
+	  changed to use individual MODULE_PARM's later
+	- Remove dummy_buffer that was never modified nor printed
+	- ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
+	  #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
+	- Remove \r from print statements, this is Linux, not DOS
+	- Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
+	  dummy macros
+	- Remove C++ compile hack in header file as Linux driver are not
+	  supposed to be compiled as C++
+	- Kill MS_64BITS macro as it makes the code more readable
+	- Remove unnecessary flags.in_interrupts bit
+    Rev  3.23.7 Beta August 20, 2001, Jes Sorensen
+	- Dont' check for set flags on q->q_flag one by one in qla1280_next()
+        - Check whether the interrupt was generated by the QLA1280 before
+          doing any processing
+	- qla1280_status_entry(): Only zero out part of sense_buffer that
+	  is not being copied into
+	- Remove more superflouous typecasts
+	- qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
+    Rev  3.23.6 Beta August 20, 2001, Tony Luck, Intel
+        - Don't walk the entire list in qla1280_putq_t() just to directly
+	  grab the pointer to the last element afterwards
+    Rev  3.23.5 Beta August 9, 2001, Jes Sorensen
+	- Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver
+    Rev  3.23.4 Beta August 8, 2001, Jes Sorensen
+	- Set dev->max_sectors to 1024
+    Rev  3.23.3 Beta August 6, 2001, Jes Sorensen
+	- Provide compat macros for pci_enable_device(), pci_find_subsys()
+	  and scsi_set_pci_device()
+	- Call scsi_set_pci_device() for all devices
+	- Reduce size of kernel version dependent device probe code
+	- Move duplicate probe/init code to separate function
+	- Handle error if qla1280_mem_alloc() fails
+	- Kill OFFSET() macro and use Linux's PCI definitions instead
+        - Kill private structure defining PCI config space (struct config_reg)
+	- Only allocate I/O port region if not in MMIO mode
+	- Remove duplicate (unused) sanity check of sife of srb_t
+    Rev  3.23.2 Beta August 6, 2001, Jes Sorensen
+	- Change home-brew memset() implementations to use memset()
+        - Remove all references to COMTRACE() - accessing a PC's COM2 serial
+          port directly is not legal under Linux.
+    Rev  3.23.1 Beta April 24, 2001, Jes Sorensen
+        - Remove pre 2.2 kernel support
+        - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
+        - Fix MMIO access to use readl/writel instead of directly
+          dereferencing pointers
+        - Nuke MSDOS debugging code
+        - Change true/false data types to int from uint8_t
+        - Use int for counters instead of uint8_t etc.
+        - Clean up size & byte order conversion macro usage
+    Rev  3.23 Beta January 11, 2001 BN Qlogic
+        - Added check of device_id when handling non
+          QLA12160s during detect().
+    Rev  3.22 Beta January 5, 2001 BN Qlogic
+        - Changed queue_task() to schedule_task()
+          for kernels 2.4.0 and higher.
+          Note: 2.4.0-testxx kernels released prior to
+                the actual 2.4.0 kernel release on January 2001
+                will get compile/link errors with schedule_task().
+                Please update your kernel to released 2.4.0 level,
+                or comment lines in this file flagged with  3.22
+                to resolve compile/link error of schedule_task().
+        - Added -DCONFIG_SMP in addition to -D__SMP__
+          in Makefile for 2.4.0 builds of driver as module.
+    Rev  3.21 Beta January 4, 2001 BN Qlogic
+        - Changed criteria of 64/32 Bit mode of HBA
+          operation according to BITS_PER_LONG rather
+          than HBA's NVRAM setting of >4Gig memory bit;
+          so that the HBA auto-configures without the need
+          to setup each system individually.
+    Rev  3.20 Beta December 5, 2000 BN Qlogic
+        - Added priority handling to IA-64  onboard SCSI
+          ISP12160 chip for kernels greater than 2.3.18.
+        - Added irqrestore for qla1280_intr_handler.
+        - Enabled /proc/scsi/qla1280 interface.
+        - Clear /proc/scsi/qla1280 counters in detect().
+    Rev  3.19 Beta October 13, 2000 BN Qlogic
+        - Declare driver_template for new kernel
+          (2.4.0 and greater) scsi initialization scheme.
+        - Update /proc/scsi entry for 2.3.18 kernels and
+          above as qla1280
+    Rev  3.18 Beta October 10, 2000 BN Qlogic
+        - Changed scan order of adapters to map
+          the QLA12160 followed by the QLA1280.
+    Rev  3.17 Beta September 18, 2000 BN Qlogic
+        - Removed warnings for 32 bit 2.4.x compiles
+        - Corrected declared size for request and response
+          DMA addresses that are kept in each ha
+    Rev. 3.16 Beta  August 25, 2000   BN  Qlogic
+        - Corrected 64 bit addressing issue on IA-64
+          where the upper 32 bits were not properly
+          passed to the RISC engine.
+    Rev. 3.15 Beta  August 22, 2000   BN  Qlogic
+        - Modified qla1280_setup_chip to properly load
+          ISP firmware for greater that 4 Gig memory on IA-64
+    Rev. 3.14 Beta  August 16, 2000   BN  Qlogic
+        - Added setting of dma_mask to full 64 bit
+          if flags.enable_64bit_addressing is set in NVRAM
+    Rev. 3.13 Beta  August 16, 2000   BN  Qlogic
+        - Use new PCI DMA mapping APIs for 2.4.x kernel
+    Rev. 3.12       July 18, 2000    Redhat & BN Qlogic
+        - Added check of pci_enable_device to detect() for 2.3.x
+        - Use pci_resource_start() instead of
+          pdev->resource[0].start in detect() for 2.3.x
+        - Updated driver version
+    Rev. 3.11       July 14, 2000    BN  Qlogic
+	- Updated SCSI Firmware to following versions:
+	  qla1x80:   8.13.08
+	  qla1x160:  10.04.08
+	- Updated driver version to 3.11
+    Rev. 3.10    June 23, 2000   BN Qlogic
+        - Added filtering of AMI SubSys Vendor ID devices
+    Rev. 3.9
+        - DEBUG_QLA1280 undefined and  new version  BN Qlogic
+    Rev. 3.08b      May 9, 2000    MD Dell
+        - Added logic to check against AMI subsystem vendor ID
+	Rev. 3.08       May 4, 2000    DG  Qlogic
+        - Added logic to check for PCI subsystem ID.
+	Rev. 3.07       Apr 24, 2000    DG & BN  Qlogic
+	   - Updated SCSI Firmware to following versions:
+	     qla12160:   10.01.19
+		 qla1280:     8.09.00
+	Rev. 3.06       Apr 12, 2000    DG & BN  Qlogic
+	   - Internal revision; not released
+    Rev. 3.05       Mar 28, 2000    DG & BN  Qlogic
+       - Edit correction for virt_to_bus and PROC.
+    Rev. 3.04       Mar 28, 2000    DG & BN  Qlogic
+       - Merge changes from ia64 port.
+    Rev. 3.03       Mar 28, 2000    BN  Qlogic
+       - Increase version to reflect new code drop with compile fix
+         of issue with inclusion of linux/spinlock for 2.3 kernels
+    Rev. 3.02       Mar 15, 2000    BN  Qlogic
+       - Merge qla1280_proc_info from 2.10 code base
+    Rev. 3.01       Feb 10, 2000    BN  Qlogic
+       - Corrected code to compile on a 2.2.x kernel.
+    Rev. 3.00       Jan 17, 2000    DG  Qlogic
+	   - Added 64-bit support.
+    Rev. 2.07       Nov 9, 1999     DG  Qlogic
+	   - Added new routine to set target parameters for ISP12160.
+    Rev. 2.06       Sept 10, 1999     DG  Qlogic
+       - Added support for ISP12160 Ultra 3 chip.
+    Rev. 2.03       August 3, 1999    Fred Lewis, Intel DuPont
+	- Modified code to remove errors generated when compiling with
+	  Cygnus IA64 Compiler.
+        - Changed conversion of pointers to unsigned longs instead of integers.
+        - Changed type of I/O port variables from uint32_t to unsigned long.
+        - Modified OFFSET macro to work with 64-bit as well as 32-bit.
+        - Changed sprintf and printk format specifiers for pointers to %p.
+        - Changed some int to long type casts where needed in sprintf & printk.
+        - Added l modifiers to sprintf and printk format specifiers for longs.
+        - Removed unused local variables.
+    Rev. 1.20       June 8, 1999      DG,  Qlogic
+         Changes to support RedHat release 6.0 (kernel 2.2.5).
+       - Added SCSI exclusive access lock (io_request_lock) when accessing
+         the adapter.
+       - Added changes for the new LINUX interface template. Some new error
+         handling routines have been added to the template, but for now we
+         will use the old ones.
+    -   Initial Beta Release.
+*****************************************************************************/
+
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/timer.h>
+#include <linux/pci.h>
+#include <linux/proc_fs.h>
+#include <linux/stat.h>
+#include <linux/pci_ids.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/byteorder.h>
+#include <asm/processor.h>
+#include <asm/types.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>
+
+
+/*
+ * Compile time Options:
+ *            0 - Disable and 1 - Enable
+ */
+#define  DEBUG_QLA1280_INTR	0
+#define  DEBUG_PRINT_NVRAM	0
+#define  DEBUG_QLA1280		0
+
+#define	MEMORY_MAPPED_IO	1
+
+#include "qla1280.h"
+
+#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
+#define QLA_64BIT_PTR	1
+#endif
+
+#define NVRAM_DELAY()			udelay(500)	/* 2 microseconds */
+
+#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
+#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
+			ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
+#define IS_ISP1x160(ha)        (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
+				ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
+
+
+static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
+static void qla1280_remove_one(struct pci_dev *);
+
+/*
+ *  QLogic Driver Support Function Prototypes.
+ */
+static void qla1280_done(struct scsi_qla_host *);
+static int qla1280_get_token(char *);
+static int qla1280_setup(char *s) __init;
+
+/*
+ *  QLogic ISP1280 Hardware Support Function Prototypes.
+ */
+static int qla1280_load_firmware(struct scsi_qla_host *);
+static int qla1280_init_rings(struct scsi_qla_host *);
+static int qla1280_nvram_config(struct scsi_qla_host *);
+static int qla1280_mailbox_command(struct scsi_qla_host *,
+				   uint8_t, uint16_t *);
+static int qla1280_bus_reset(struct scsi_qla_host *, int);
+static int qla1280_device_reset(struct scsi_qla_host *, int, int);
+static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
+static int qla1280_abort_isp(struct scsi_qla_host *);
+#ifdef QLA_64BIT_PTR
+static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
+#else
+static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
+#endif
+static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
+static void qla1280_poll(struct scsi_qla_host *);
+static void qla1280_reset_adapter(struct scsi_qla_host *);
+static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
+static void qla1280_isp_cmd(struct scsi_qla_host *);
+static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
+static void qla1280_rst_aen(struct scsi_qla_host *);
+static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
+				 struct list_head *);
+static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
+				struct list_head *);
+static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
+static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
+static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
+static request_t *qla1280_req_pkt(struct scsi_qla_host *);
+static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
+					   unsigned int);
+static void qla1280_get_target_parameters(struct scsi_qla_host *,
+					   struct scsi_device *);
+static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
+
+
+static struct qla_driver_setup driver_setup;
+
+/*
+ * convert scsi data direction to request_t control flags
+ */
+static inline uint16_t
+qla1280_data_direction(struct scsi_cmnd *cmnd)
+{
+	switch(cmnd->sc_data_direction) {
+	case DMA_FROM_DEVICE:
+		return BIT_5;
+	case DMA_TO_DEVICE:
+		return BIT_6;
+	case DMA_BIDIRECTIONAL:
+		return BIT_5 | BIT_6;
+	/*
+	 * We could BUG() on default here if one of the four cases aren't
+	 * met, but then again if we receive something like that from the
+	 * SCSI layer we have more serious problems. This shuts up GCC.
+	 */
+	case DMA_NONE:
+	default:
+		return 0;
+	}
+}
+		
+#if DEBUG_QLA1280
+static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
+static void __qla1280_dump_buffer(char *, int);
+#endif
+
+
+/*
+ * insmod needs to find the variable and make it point to something
+ */
+#ifdef MODULE
+static char *qla1280;
+
+/* insmod qla1280 options=verbose" */
+module_param(qla1280, charp, 0);
+#else
+__setup("qla1280=", qla1280_setup);
+#endif
+
+
+#define	CMD_CDBLEN(Cmnd)	Cmnd->cmd_len
+#define	CMD_CDBP(Cmnd)		Cmnd->cmnd
+#define	CMD_SNSP(Cmnd)		Cmnd->sense_buffer
+#define	CMD_SNSLEN(Cmnd)	SCSI_SENSE_BUFFERSIZE
+#define	CMD_RESULT(Cmnd)	Cmnd->result
+#define	CMD_HANDLE(Cmnd)	Cmnd->host_scribble
+
+#define CMD_HOST(Cmnd)		Cmnd->device->host
+#define SCSI_BUS_32(Cmnd)	Cmnd->device->channel
+#define SCSI_TCN_32(Cmnd)	Cmnd->device->id
+#define SCSI_LUN_32(Cmnd)	Cmnd->device->lun
+
+
+/*****************************************/
+/*   ISP Boards supported by this driver */
+/*****************************************/
+
+struct qla_boards {
+	char *name;		/* Board ID String */
+	int numPorts;		/* Number of SCSI ports */
+	int fw_index;		/* index into qla1280_fw_tbl for firmware */
+};
+
+/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
+static struct pci_device_id qla1280_pci_tbl[] = {
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
+	{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
+	{0,}
+};
+MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
+
+static DEFINE_MUTEX(qla1280_firmware_mutex);
+
+struct qla_fw {
+	char *fwname;
+	const struct firmware *fw;
+};
+
+#define QL_NUM_FW_IMAGES 3
+
+static struct qla_fw qla1280_fw_tbl[QL_NUM_FW_IMAGES] = {
+	{"qlogic/1040.bin",  NULL},	/* image 0 */
+	{"qlogic/1280.bin",  NULL},	/* image 1 */
+	{"qlogic/12160.bin", NULL},	/* image 2 */
+};
+
+/* NOTE: Order of boards in this table must match order in qla1280_pci_tbl */
+static struct qla_boards ql1280_board_tbl[] = {
+	{.name = "QLA12160", .numPorts = 2, .fw_index = 2},
+	{.name = "QLA1040" , .numPorts = 1, .fw_index = 0},
+	{.name = "QLA1080" , .numPorts = 1, .fw_index = 1},
+	{.name = "QLA1240" , .numPorts = 2, .fw_index = 1},
+	{.name = "QLA1280" , .numPorts = 2, .fw_index = 1},
+	{.name = "QLA10160", .numPorts = 1, .fw_index = 2},
+	{.name = "        ", .numPorts = 0, .fw_index = -1},
+};
+
+static int qla1280_verbose = 1;
+
+#if DEBUG_QLA1280
+static int ql_debug_level = 1;
+#define dprintk(level, format, a...)	\
+	do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
+#define qla1280_dump_buffer(level, buf, size)	\
+	if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
+#define qla1280_print_scsi_cmd(level, cmd)	\
+	if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
+#else
+#define ql_debug_level			0
+#define dprintk(level, format, a...)	do{}while(0)
+#define qla1280_dump_buffer(a, b, c)	do{}while(0)
+#define qla1280_print_scsi_cmd(a, b)	do{}while(0)
+#endif
+
+#define ENTER(x)		dprintk(3, "qla1280 : Entering %s()\n", x);
+#define LEAVE(x)		dprintk(3, "qla1280 : Leaving %s()\n", x);
+#define ENTER_INTR(x)		dprintk(4, "qla1280 : Entering %s()\n", x);
+#define LEAVE_INTR(x)		dprintk(4, "qla1280 : Leaving %s()\n", x);
+
+
+static int qla1280_read_nvram(struct scsi_qla_host *ha)
+{
+	uint16_t *wptr;
+	uint8_t chksum;
+	int cnt, i;
+	struct nvram *nv;
+
+	ENTER("qla1280_read_nvram");
+
+	if (driver_setup.no_nvram)
+		return 1;
+
+	printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
+
+	wptr = (uint16_t *)&ha->nvram;
+	nv = &ha->nvram;
+	chksum = 0;
+	for (cnt = 0; cnt < 3; cnt++) {
+		*wptr = qla1280_get_nvram_word(ha, cnt);
+		chksum += *wptr & 0xff;
+		chksum += (*wptr >> 8) & 0xff;
+		wptr++;
+	}
+
+	if (nv->id0 != 'I' || nv->id1 != 'S' ||
+	    nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
+		dprintk(2, "Invalid nvram ID or version!\n");
+		chksum = 1;
+	} else {
+		for (; cnt < sizeof(struct nvram); cnt++) {
+			*wptr = qla1280_get_nvram_word(ha, cnt);
+			chksum += *wptr & 0xff;
+			chksum += (*wptr >> 8) & 0xff;
+			wptr++;
+		}
+	}
+
+	dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
+	       " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
+	       nv->version);
+
+
+	if (chksum) {
+		if (!driver_setup.no_nvram)
+			printk(KERN_WARNING "scsi(%ld): Unable to identify or "
+			       "validate NVRAM checksum, using default "
+			       "settings\n", ha->host_no);
+		ha->nvram_valid = 0;
+	} else
+		ha->nvram_valid = 1;
+
+	/* The firmware interface is, um, interesting, in that the
+	 * actual firmware image on the chip is little endian, thus,
+	 * the process of taking that image to the CPU would end up
+	 * little endian.  However, the firmware interface requires it
+	 * to be read a word (two bytes) at a time.
+	 *
+	 * The net result of this would be that the word (and
+	 * doubleword) quantities in the firmware would be correct, but
+	 * the bytes would be pairwise reversed.  Since most of the
+	 * firmware quantities are, in fact, bytes, we do an extra
+	 * le16_to_cpu() in the firmware read routine.
+	 *
+	 * The upshot of all this is that the bytes in the firmware
+	 * are in the correct places, but the 16 and 32 bit quantities
+	 * are still in little endian format.  We fix that up below by
+	 * doing extra reverses on them */
+	nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
+	nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
+	for(i = 0; i < MAX_BUSES; i++) {
+		nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
+		nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
+	}
+	dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
+	LEAVE("qla1280_read_nvram");
+
+	return chksum;
+}
+
+/**************************************************************************
+ *   qla1280_info
+ *     Return a string describing the driver.
+ **************************************************************************/
+static const char *
+qla1280_info(struct Scsi_Host *host)
+{
+	static char qla1280_scsi_name_buffer[125];
+	char *bp;
+	struct scsi_qla_host *ha;
+	struct qla_boards *bdp;
+
+	bp = &qla1280_scsi_name_buffer[0];
+	ha = (struct scsi_qla_host *)host->hostdata;
+	bdp = &ql1280_board_tbl[ha->devnum];
+	memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
+
+	sprintf (bp,
+		 "QLogic %s PCI to SCSI Host Adapter\n"
+		 "       Firmware version: %2d.%02d.%02d, Driver version %s",
+		 &bdp->name[0], ha->fwver1, ha->fwver2, ha->fwver3,
+		 QLA1280_VERSION);
+	return bp;
+}
+
+/**************************************************************************
+ *   qla1280_queuecommand
+ *     Queue a command to the controller.
+ *
+ * Note:
+ * The mid-level driver tries to ensures that queuecommand never gets invoked
+ * concurrently with itself or the interrupt handler (although the
+ * interrupt handler may call this routine as part of request-completion
+ * handling).   Unfortunately, it sometimes calls the scheduler in interrupt
+ * context which is a big NO! NO!.
+ **************************************************************************/
+static int qla1280_queuecommand_lck(struct scsi_cmnd *cmd)
+{
+	struct Scsi_Host *host = cmd->device->host;
+	struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
+	struct srb *sp = scsi_cmd_priv(cmd);
+	int status;
+
+	sp->cmd = cmd;
+	sp->flags = 0;
+	sp->wait = NULL;
+	CMD_HANDLE(cmd) = (unsigned char *)NULL;
+
+	qla1280_print_scsi_cmd(5, cmd);
+
+#ifdef QLA_64BIT_PTR
+	/*
+	 * Using 64 bit commands if the PCI bridge doesn't support it is a
+	 * bit wasteful, however this should really only happen if one's
+	 * PCI controller is completely broken, like the BCM1250. For
+	 * sane hardware this is not an issue.
+	 */
+	status = qla1280_64bit_start_scsi(ha, sp);
+#else
+	status = qla1280_32bit_start_scsi(ha, sp);
+#endif
+	return status;
+}
+
+static DEF_SCSI_QCMD(qla1280_queuecommand)
+
+enum action {
+	ABORT_COMMAND,
+	DEVICE_RESET,
+	BUS_RESET,
+	ADAPTER_RESET,
+};
+
+
+static void qla1280_mailbox_timeout(struct timer_list *t)
+{
+	struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
+	struct device_reg __iomem *reg;
+	reg = ha->iobase;
+
+	ha->mailbox_out[0] = RD_REG_WORD(&reg->mailbox0);
+	printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
+	       "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
+	       RD_REG_WORD(&reg->ictrl), RD_REG_WORD(&reg->istatus));
+	complete(ha->mailbox_wait);
+}
+
+static int
+_qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp,
+				 struct completion *wait)
+{
+	int	status = FAILED;
+	struct scsi_cmnd *cmd = sp->cmd;
+
+	spin_unlock_irq(ha->host->host_lock);
+	wait_for_completion_timeout(wait, 4*HZ);
+	spin_lock_irq(ha->host->host_lock);
+	sp->wait = NULL;
+	if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) {
+		status = SUCCESS;
+		scsi_done(cmd);
+	}
+	return status;
+}
+
+static int
+qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp)
+{
+	DECLARE_COMPLETION_ONSTACK(wait);
+
+	sp->wait = &wait;
+	return _qla1280_wait_for_single_command(ha, sp, &wait);
+}
+
+static int
+qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target)
+{
+	int		cnt;
+	int		status;
+	struct srb	*sp;
+	struct scsi_cmnd *cmd;
+
+	status = SUCCESS;
+
+	/*
+	 * Wait for all commands with the designated bus/target
+	 * to be completed by the firmware
+	 */
+	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+		sp = ha->outstanding_cmds[cnt];
+		if (sp) {
+			cmd = sp->cmd;
+
+			if (bus >= 0 && SCSI_BUS_32(cmd) != bus)
+				continue;
+			if (target >= 0 && SCSI_TCN_32(cmd) != target)
+				continue;
+
+			status = qla1280_wait_for_single_command(ha, sp);
+			if (status == FAILED)
+				break;
+		}
+	}
+	return status;
+}
+
+/**************************************************************************
+ * qla1280_error_action
+ *    The function will attempt to perform a specified error action and
+ *    wait for the results (or time out).
+ *
+ * Input:
+ *      cmd = Linux SCSI command packet of the command that cause the
+ *            bus reset.
+ *      action = error action to take (see action_t)
+ *
+ * Returns:
+ *      SUCCESS or FAILED
+ *
+ **************************************************************************/
+static int
+qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
+{
+	struct scsi_qla_host *ha;
+	int bus, target, lun;
+	struct srb *sp;
+	int i, found;
+	int result=FAILED;
+	int wait_for_bus=-1;
+	int wait_for_target = -1;
+	DECLARE_COMPLETION_ONSTACK(wait);
+
+	ENTER("qla1280_error_action");
+
+	ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
+	sp = scsi_cmd_priv(cmd);
+	bus = SCSI_BUS_32(cmd);
+	target = SCSI_TCN_32(cmd);
+	lun = SCSI_LUN_32(cmd);
+
+	dprintk(4, "error_action %i, istatus 0x%04x\n", action,
+		RD_REG_WORD(&ha->iobase->istatus));
+
+	dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
+		RD_REG_WORD(&ha->iobase->host_cmd),
+		RD_REG_WORD(&ha->iobase->ictrl), jiffies);
+
+	if (qla1280_verbose)
+		printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
+		       "Handle=0x%p, action=0x%x\n",
+		       ha->host_no, cmd, CMD_HANDLE(cmd), action);
+
+	/*
+	 * Check to see if we have the command in the outstanding_cmds[]
+	 * array.  If not then it must have completed before this error
+	 * action was initiated.  If the error_action isn't ABORT_COMMAND
+	 * then the driver must proceed with the requested action.
+	 */
+	found = -1;
+	for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
+		if (sp == ha->outstanding_cmds[i]) {
+			found = i;
+			sp->wait = &wait; /* we'll wait for it to complete */
+			break;
+		}
+	}
+
+	if (found < 0) {	/* driver doesn't have command */
+		result = SUCCESS;
+		if (qla1280_verbose) {
+			printk(KERN_INFO
+			       "scsi(%ld:%d:%d:%d): specified command has "
+			       "already completed.\n", ha->host_no, bus,
+				target, lun);
+		}
+	}
+
+	switch (action) {
+
+	case ABORT_COMMAND:
+		dprintk(1, "qla1280: RISC aborting command\n");
+		/*
+		 * The abort might fail due to race when the host_lock
+		 * is released to issue the abort.  As such, we
+		 * don't bother to check the return status.
+		 */
+		if (found >= 0)
+			qla1280_abort_command(ha, sp, found);
+		break;
+
+	case DEVICE_RESET:
+		if (qla1280_verbose)
+			printk(KERN_INFO
+			       "scsi(%ld:%d:%d:%d): Queueing device reset "
+			       "command.\n", ha->host_no, bus, target, lun);
+		if (qla1280_device_reset(ha, bus, target) == 0) {
+			/* issued device reset, set wait conditions */
+			wait_for_bus = bus;
+			wait_for_target = target;
+		}
+		break;
+
+	case BUS_RESET:
+		if (qla1280_verbose)
+			printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
+			       "reset.\n", ha->host_no, bus);
+		if (qla1280_bus_reset(ha, bus) == 0) {
+			/* issued bus reset, set wait conditions */
+			wait_for_bus = bus;
+		}
+		break;
+
+	case ADAPTER_RESET:
+	default:
+		if (qla1280_verbose) {
+			printk(KERN_INFO
+			       "scsi(%ld): Issued ADAPTER RESET\n",
+			       ha->host_no);
+			printk(KERN_INFO "scsi(%ld): I/O processing will "
+			       "continue automatically\n", ha->host_no);
+		}
+		ha->flags.reset_active = 1;
+
+		if (qla1280_abort_isp(ha) != 0) {	/* it's dead */
+			result = FAILED;
+		}
+
+		ha->flags.reset_active = 0;
+	}
+
+	/*
+	 * At this point, the host_lock has been released and retaken
+	 * by the issuance of the mailbox command.
+	 * Wait for the command passed in by the mid-layer if it
+	 * was found by the driver.  It might have been returned
+	 * between eh recovery steps, hence the check of the "found"
+	 * variable.
+	 */
+
+	if (found >= 0)
+		result = _qla1280_wait_for_single_command(ha, sp, &wait);
+
+	if (action == ABORT_COMMAND && result != SUCCESS) {
+		printk(KERN_WARNING
+		       "scsi(%li:%i:%i:%i): "
+		       "Unable to abort command!\n",
+		       ha->host_no, bus, target, lun);
+	}
+
+	/*
+	 * If the command passed in by the mid-layer has been
+	 * returned by the board, then wait for any additional
+	 * commands which are supposed to complete based upon
+	 * the error action.
+	 *
+	 * All commands are unconditionally returned during a
+	 * call to qla1280_abort_isp(), ADAPTER_RESET.  No need
+	 * to wait for them.
+	 */
+	if (result == SUCCESS && wait_for_bus >= 0) {
+		result = qla1280_wait_for_pending_commands(ha,
+					wait_for_bus, wait_for_target);
+	}
+
+	dprintk(1, "RESET returning %d\n", result);
+
+	LEAVE("qla1280_error_action");
+	return result;
+}
+
+/**************************************************************************
+ *   qla1280_abort
+ *     Abort the specified SCSI command(s).
+ **************************************************************************/
+static int
+qla1280_eh_abort(struct scsi_cmnd * cmd)
+{
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = qla1280_error_action(cmd, ABORT_COMMAND);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
+}
+
+/**************************************************************************
+ *   qla1280_device_reset
+ *     Reset the specified SCSI device
+ **************************************************************************/
+static int
+qla1280_eh_device_reset(struct scsi_cmnd *cmd)
+{
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = qla1280_error_action(cmd, DEVICE_RESET);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
+}
+
+/**************************************************************************
+ *   qla1280_bus_reset
+ *     Reset the specified bus.
+ **************************************************************************/
+static int
+qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
+{
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = qla1280_error_action(cmd, BUS_RESET);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
+}
+
+/**************************************************************************
+ *   qla1280_adapter_reset
+ *     Reset the specified adapter (both channels)
+ **************************************************************************/
+static int
+qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
+{
+	int rc;
+
+	spin_lock_irq(cmd->device->host->host_lock);
+	rc = qla1280_error_action(cmd, ADAPTER_RESET);
+	spin_unlock_irq(cmd->device->host->host_lock);
+
+	return rc;
+}
+
+static int
+qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
+		  sector_t capacity, int geom[])
+{
+	int heads, sectors, cylinders;
+
+	heads = 64;
+	sectors = 32;
+	cylinders = (unsigned long)capacity / (heads * sectors);
+	if (cylinders > 1024) {
+		heads = 255;
+		sectors = 63;
+		cylinders = (unsigned long)capacity / (heads * sectors);
+		/* if (cylinders > 1023)
+		   cylinders = 1023; */
+	}
+
+	geom[0] = heads;
+	geom[1] = sectors;
+	geom[2] = cylinders;
+
+	return 0;
+}
+
+ 
+/* disable risc and host interrupts */
+static inline void
+qla1280_disable_intrs(struct scsi_qla_host *ha)
+{
+	WRT_REG_WORD(&ha->iobase->ictrl, 0);
+	RD_REG_WORD(&ha->iobase->ictrl);	/* PCI Posted Write flush */
+}
+
+/* enable risc and host interrupts */
+static inline void
+qla1280_enable_intrs(struct scsi_qla_host *ha)
+{
+	WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
+	RD_REG_WORD(&ha->iobase->ictrl);	/* PCI Posted Write flush */
+}
+
+/**************************************************************************
+ * qla1280_intr_handler
+ *   Handles the H/W interrupt
+ **************************************************************************/
+static irqreturn_t
+qla1280_intr_handler(int irq, void *dev_id)
+{
+	struct scsi_qla_host *ha;
+	struct device_reg __iomem *reg;
+	u16 data;
+	int handled = 0;
+
+	ENTER_INTR ("qla1280_intr_handler");
+	ha = (struct scsi_qla_host *)dev_id;
+
+	spin_lock(ha->host->host_lock);
+
+	ha->isr_count++;
+	reg = ha->iobase;
+
+	qla1280_disable_intrs(ha);
+
+	data = qla1280_debounce_register(&reg->istatus);
+	/* Check for pending interrupts. */
+	if (data & RISC_INT) {	
+		qla1280_isr(ha, &ha->done_q);
+		handled = 1;
+	}
+	if (!list_empty(&ha->done_q))
+		qla1280_done(ha);
+
+	spin_unlock(ha->host->host_lock);
+
+	qla1280_enable_intrs(ha);
+
+	LEAVE_INTR("qla1280_intr_handler");
+	return IRQ_RETVAL(handled);
+}
+
+
+static int
+qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
+{
+	uint8_t mr;
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	struct nvram *nv;
+	int status, lun;
+
+	nv = &ha->nvram;
+
+	mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
+
+	/* Set Target Parameters. */
+	mb[0] = MBC_SET_TARGET_PARAMETERS;
+	mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
+	mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
+	mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
+	mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
+	mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
+	mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
+	mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
+	mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
+	mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
+
+	if (IS_ISP1x160(ha)) {
+		mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
+		mb[3] =	(nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
+		mb[6] =	(nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
+			 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
+		mr |= BIT_6;
+	} else {
+		mb[3] =	(nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
+	}
+	mb[3] |= nv->bus[bus].target[target].sync_period;
+
+	status = qla1280_mailbox_command(ha, mr, mb);
+
+	/* Set Device Queue Parameters. */
+	for (lun = 0; lun < MAX_LUNS; lun++) {
+		mb[0] = MBC_SET_DEVICE_QUEUE;
+		mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
+		mb[1] |= lun;
+		mb[2] = nv->bus[bus].max_queue_depth;
+		mb[3] = nv->bus[bus].target[target].execution_throttle;
+		status |= qla1280_mailbox_command(ha, 0x0f, mb);
+	}
+
+	if (status)
+		printk(KERN_WARNING "scsi(%ld:%i:%i): "
+		       "qla1280_set_target_parameters() failed\n",
+		       ha->host_no, bus, target);
+	return status;
+}
+
+
+/**************************************************************************
+ *   qla1280_slave_configure
+ *
+ * Description:
+ *   Determines the queue depth for a given device.  There are two ways
+ *   a queue depth can be obtained for a tagged queueing device.  One
+ *   way is the default queue depth which is determined by whether
+ *   If it is defined, then it is used
+ *   as the default queue depth.  Otherwise, we use either 4 or 8 as the
+ *   default queue depth (dependent on the number of hardware SCBs).
+ **************************************************************************/
+static int
+qla1280_slave_configure(struct scsi_device *device)
+{
+	struct scsi_qla_host *ha;
+	int default_depth = 3;
+	int bus = device->channel;
+	int target = device->id;
+	int status = 0;
+	struct nvram *nv;
+	unsigned long flags;
+
+	ha = (struct scsi_qla_host *)device->host->hostdata;
+	nv = &ha->nvram;
+
+	if (qla1280_check_for_dead_scsi_bus(ha, bus))
+		return 1;
+
+	if (device->tagged_supported &&
+	    (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
+		scsi_change_queue_depth(device, ha->bus_settings[bus].hiwat);
+	} else {
+		scsi_change_queue_depth(device, default_depth);
+	}
+
+	nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
+	nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
+	nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
+
+	if (driver_setup.no_sync ||
+	    (driver_setup.sync_mask &&
+	     (~driver_setup.sync_mask & (1 << target))))
+		nv->bus[bus].target[target].parameter.enable_sync = 0;
+	if (driver_setup.no_wide ||
+	    (driver_setup.wide_mask &&
+	     (~driver_setup.wide_mask & (1 << target))))
+		nv->bus[bus].target[target].parameter.enable_wide = 0;
+	if (IS_ISP1x160(ha)) {
+		if (driver_setup.no_ppr ||
+		    (driver_setup.ppr_mask &&
+		     (~driver_setup.ppr_mask & (1 << target))))
+			nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
+	}
+
+	spin_lock_irqsave(ha->host->host_lock, flags);
+	if (nv->bus[bus].target[target].parameter.enable_sync)
+		status = qla1280_set_target_parameters(ha, bus, target);
+	qla1280_get_target_parameters(ha, device);
+	spin_unlock_irqrestore(ha->host->host_lock, flags);
+	return status;
+}
+
+
+/*
+ * qla1280_done
+ *      Process completed commands.
+ *
+ * Input:
+ *      ha           = adapter block pointer.
+ */
+static void
+qla1280_done(struct scsi_qla_host *ha)
+{
+	struct srb *sp;
+	struct list_head *done_q;
+	int bus, target;
+	struct scsi_cmnd *cmd;
+
+	ENTER("qla1280_done");
+
+	done_q = &ha->done_q;
+
+	while (!list_empty(done_q)) {
+		sp = list_entry(done_q->next, struct srb, list);
+
+		list_del(&sp->list);
+	
+		cmd = sp->cmd;
+		bus = SCSI_BUS_32(cmd);
+		target = SCSI_TCN_32(cmd);
+
+		switch ((CMD_RESULT(cmd) >> 16)) {
+		case DID_RESET:
+			/* Issue marker command. */
+			if (!ha->flags.abort_isp_active)
+				qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
+			break;
+		case DID_ABORT:
+			sp->flags &= ~SRB_ABORT_PENDING;
+			sp->flags |= SRB_ABORTED;
+			break;
+		default:
+			break;
+		}
+
+		/* Release memory used for this I/O */
+		scsi_dma_unmap(cmd);
+
+		/* Call the mid-level driver interrupt handler */
+		ha->actthreads--;
+
+		if (sp->wait == NULL)
+			scsi_done(cmd);
+		else
+			complete(sp->wait);
+	}
+	LEAVE("qla1280_done");
+}
+
+/*
+ * Translates a ISP error to a Linux SCSI error
+ */
+static int
+qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
+{
+	int host_status = DID_ERROR;
+	uint16_t comp_status = le16_to_cpu(sts->comp_status);
+	uint16_t state_flags = le16_to_cpu(sts->state_flags);
+	uint32_t residual_length = le32_to_cpu(sts->residual_length);
+	uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
+#if DEBUG_QLA1280_INTR
+	static char *reason[] = {
+		"DID_OK",
+		"DID_NO_CONNECT",
+		"DID_BUS_BUSY",
+		"DID_TIME_OUT",
+		"DID_BAD_TARGET",
+		"DID_ABORT",
+		"DID_PARITY",
+		"DID_ERROR",
+		"DID_RESET",
+		"DID_BAD_INTR"
+	};
+#endif				/* DEBUG_QLA1280_INTR */
+
+	ENTER("qla1280_return_status");
+
+#if DEBUG_QLA1280_INTR
+	/*
+	  dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
+	  comp_status);
+	*/
+#endif
+
+	switch (comp_status) {
+	case CS_COMPLETE:
+		host_status = DID_OK;
+		break;
+
+	case CS_INCOMPLETE:
+		if (!(state_flags & SF_GOT_BUS))
+			host_status = DID_NO_CONNECT;
+		else if (!(state_flags & SF_GOT_TARGET))
+			host_status = DID_BAD_TARGET;
+		else if (!(state_flags & SF_SENT_CDB))
+			host_status = DID_ERROR;
+		else if (!(state_flags & SF_TRANSFERRED_DATA))
+			host_status = DID_ERROR;
+		else if (!(state_flags & SF_GOT_STATUS))
+			host_status = DID_ERROR;
+		else if (!(state_flags & SF_GOT_SENSE))
+			host_status = DID_ERROR;
+		break;
+
+	case CS_RESET:
+		host_status = DID_RESET;
+		break;
+
+	case CS_ABORTED:
+		host_status = DID_ABORT;
+		break;
+
+	case CS_TIMEOUT:
+		host_status = DID_TIME_OUT;
+		break;
+
+	case CS_DATA_OVERRUN:
+		dprintk(2, "Data overrun 0x%x\n", residual_length);
+		dprintk(2, "qla1280_return_status: response packet data\n");
+		qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
+		host_status = DID_ERROR;
+		break;
+
+	case CS_DATA_UNDERRUN:
+		if ((scsi_bufflen(cp) - residual_length) <
+		    cp->underflow) {
+			printk(KERN_WARNING
+			       "scsi: Underflow detected - retrying "
+			       "command.\n");
+			host_status = DID_ERROR;
+		} else {
+			scsi_set_resid(cp, residual_length);
+			host_status = DID_OK;
+		}
+		break;
+
+	default:
+		host_status = DID_ERROR;
+		break;
+	}
+
+#if DEBUG_QLA1280_INTR
+	dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
+		reason[host_status], scsi_status);
+#endif
+
+	LEAVE("qla1280_return_status");
+
+	return (scsi_status & 0xff) | (host_status << 16);
+}
+
+/****************************************************************************/
+/*                QLogic ISP1280 Hardware Support Functions.                */
+/****************************************************************************/
+
+/*
+ * qla1280_initialize_adapter
+ *      Initialize board.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_initialize_adapter(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg;
+	int status;
+	int bus;
+	unsigned long flags;
+
+	ENTER("qla1280_initialize_adapter");
+
+	/* Clear adapter flags. */
+	ha->flags.online = 0;
+	ha->flags.disable_host_adapter = 0;
+	ha->flags.reset_active = 0;
+	ha->flags.abort_isp_active = 0;
+
+	/* TODO: implement support for the 1040 nvram format */
+	if (IS_ISP1040(ha))
+		driver_setup.no_nvram = 1;
+
+	dprintk(1, "Configure PCI space for adapter...\n");
+
+	reg = ha->iobase;
+
+	/* Insure mailbox registers are free. */
+	WRT_REG_WORD(&reg->semaphore, 0);
+	WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
+	WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
+	RD_REG_WORD(&reg->host_cmd);
+
+	if (qla1280_read_nvram(ha)) {
+		dprintk(2, "qla1280_initialize_adapter: failed to read "
+			"NVRAM\n");
+	}
+
+	/*
+	 * It's necessary to grab the spin here as qla1280_mailbox_command
+	 * needs to be able to drop the lock unconditionally to wait
+	 * for completion.
+	 */
+	spin_lock_irqsave(ha->host->host_lock, flags);
+
+	status = qla1280_load_firmware(ha);
+	if (status) {
+		printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
+		       ha->host_no);
+		goto out;
+	}
+
+	/* Setup adapter based on NVRAM parameters. */
+	dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
+	qla1280_nvram_config(ha);
+
+	if (ha->flags.disable_host_adapter) {
+		status = 1;
+		goto out;
+	}
+
+	status = qla1280_init_rings(ha);
+	if (status)
+		goto out;
+
+	/* Issue SCSI reset, if we can't reset twice then bus is dead */
+	for (bus = 0; bus < ha->ports; bus++) {
+		if (!ha->bus_settings[bus].disable_scsi_reset &&
+		    qla1280_bus_reset(ha, bus) &&
+		    qla1280_bus_reset(ha, bus))
+			ha->bus_settings[bus].scsi_bus_dead = 1;
+	}
+
+	ha->flags.online = 1;
+ out:
+	spin_unlock_irqrestore(ha->host->host_lock, flags);
+
+	if (status)
+		dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
+
+	LEAVE("qla1280_initialize_adapter");
+	return status;
+}
+
+/*
+ * qla1280_request_firmware
+ *      Acquire firmware for chip.  Retain in memory
+ *      for error recovery.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *
+ * Returns:
+ *      Pointer to firmware image or an error code
+ *      cast to pointer via ERR_PTR().
+ */
+static const struct firmware *
+qla1280_request_firmware(struct scsi_qla_host *ha)
+{
+	const struct firmware *fw;
+	int err;
+	int index;
+	char *fwname;
+
+	spin_unlock_irq(ha->host->host_lock);
+	mutex_lock(&qla1280_firmware_mutex);
+
+	index = ql1280_board_tbl[ha->devnum].fw_index;
+	fw = qla1280_fw_tbl[index].fw;
+	if (fw)
+		goto out;
+
+	fwname = qla1280_fw_tbl[index].fwname;
+	err = request_firmware(&fw, fwname, &ha->pdev->dev);
+
+	if (err) {
+		printk(KERN_ERR "Failed to load image \"%s\" err %d\n",
+		       fwname, err);
+		fw = ERR_PTR(err);
+		goto unlock;
+	}
+	if ((fw->size % 2) || (fw->size < 6)) {
+		printk(KERN_ERR "Invalid firmware length %zu in image \"%s\"\n",
+		       fw->size, fwname);
+		release_firmware(fw);
+		fw = ERR_PTR(-EINVAL);
+		goto unlock;
+	}
+
+	qla1280_fw_tbl[index].fw = fw;
+
+ out:
+	ha->fwver1 = fw->data[0];
+	ha->fwver2 = fw->data[1];
+	ha->fwver3 = fw->data[2];
+ unlock:
+	mutex_unlock(&qla1280_firmware_mutex);
+	spin_lock_irq(ha->host->host_lock);
+	return fw;
+}
+
+/*
+ * Chip diagnostics
+ *      Test chip for proper operation.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *
+ * Returns:
+ *      0 = success.
+ */
+static int
+qla1280_chip_diag(struct scsi_qla_host *ha)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	struct device_reg __iomem *reg = ha->iobase;
+	int status = 0;
+	int cnt;
+	uint16_t data;
+	dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
+
+	dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
+
+	/* Soft reset chip and wait for it to finish. */
+	WRT_REG_WORD(&reg->ictrl, ISP_RESET);
+
+	/*
+	 * We can't do a traditional PCI write flush here by reading
+	 * back the register. The card will not respond once the reset
+	 * is in action and we end up with a machine check exception
+	 * instead. Nothing to do but wait and hope for the best.
+	 * A portable pci_write_flush(pdev) call would be very useful here.
+	 */
+	udelay(20);
+	data = qla1280_debounce_register(&reg->ictrl);
+	/*
+	 * Yet another QLogic gem ;-(
+	 */
+	for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
+		udelay(5);
+		data = RD_REG_WORD(&reg->ictrl);
+	}
+
+	if (!cnt)
+		goto fail;
+
+	/* Reset register cleared by chip reset. */
+	dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
+
+	WRT_REG_WORD(&reg->cfg_1, 0);
+
+	/* Reset RISC and disable BIOS which
+	   allows RISC to execute out of RAM. */
+	WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
+		     HC_RELEASE_RISC | HC_DISABLE_BIOS);
+
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+	data = qla1280_debounce_register(&reg->mailbox0);
+
+	/*
+	 * I *LOVE* this code!
+	 */
+	for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
+		udelay(5);
+		data = RD_REG_WORD(&reg->mailbox0);
+	}
+
+	if (!cnt)
+		goto fail;
+
+	/* Check product ID of chip */
+	dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
+
+	if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
+	    (RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
+	     RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
+	    RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
+	    RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
+		printk(KERN_INFO "qla1280: Wrong product ID = "
+		       "0x%x,0x%x,0x%x,0x%x\n",
+		       RD_REG_WORD(&reg->mailbox1),
+		       RD_REG_WORD(&reg->mailbox2),
+		       RD_REG_WORD(&reg->mailbox3),
+		       RD_REG_WORD(&reg->mailbox4));
+		goto fail;
+	}
+
+	/*
+	 * Enable ints early!!!
+	 */
+	qla1280_enable_intrs(ha);
+
+	dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
+	/* Wrap Incoming Mailboxes Test. */
+	mb[0] = MBC_MAILBOX_REGISTER_TEST;
+	mb[1] = 0xAAAA;
+	mb[2] = 0x5555;
+	mb[3] = 0xAA55;
+	mb[4] = 0x55AA;
+	mb[5] = 0xA5A5;
+	mb[6] = 0x5A5A;
+	mb[7] = 0x2525;
+
+	status = qla1280_mailbox_command(ha, 0xff, mb);
+	if (status)
+		goto fail;
+
+	if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
+	    mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
+	    mb[7] != 0x2525) {
+		printk(KERN_INFO "qla1280: Failed mbox check\n");
+		goto fail;
+	}
+
+	dprintk(3, "qla1280_chip_diag: exiting normally\n");
+	return 0;
+ fail:
+	dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
+	return status;
+}
+
+static int
+qla1280_load_firmware_pio(struct scsi_qla_host *ha)
+{
+	/* enter with host_lock acquired */
+
+	const struct firmware *fw;
+	const __le16 *fw_data;
+	uint16_t risc_address, risc_code_size;
+	uint16_t mb[MAILBOX_REGISTER_COUNT], i;
+	int err = 0;
+
+	fw = qla1280_request_firmware(ha);
+	if (IS_ERR(fw))
+		return PTR_ERR(fw);
+
+	fw_data = (const __le16 *)&fw->data[0];
+	ha->fwstart = __le16_to_cpu(fw_data[2]);
+
+	/* Load RISC code. */
+	risc_address = ha->fwstart;
+	fw_data = (const __le16 *)&fw->data[6];
+	risc_code_size = (fw->size - 6) / 2;
+
+	for (i = 0; i < risc_code_size; i++) {
+		mb[0] = MBC_WRITE_RAM_WORD;
+		mb[1] = risc_address + i;
+		mb[2] = __le16_to_cpu(fw_data[i]);
+
+		err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
+		if (err) {
+			printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
+					ha->host_no);
+			break;
+		}
+	}
+
+	return err;
+}
+
+#ifdef QLA_64BIT_PTR
+#define LOAD_CMD	MBC_LOAD_RAM_A64_ROM
+#define DUMP_CMD	MBC_DUMP_RAM_A64_ROM
+#define CMD_ARGS	(BIT_7 | BIT_6 | BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
+#else
+#define LOAD_CMD	MBC_LOAD_RAM
+#define DUMP_CMD	MBC_DUMP_RAM
+#define CMD_ARGS	(BIT_4 | BIT_3 | BIT_2 | BIT_1 | BIT_0)
+#endif
+
+#define DUMP_IT_BACK 0		/* for debug of RISC loading */
+static int
+qla1280_load_firmware_dma(struct scsi_qla_host *ha)
+{
+	/* enter with host_lock acquired */
+	const struct firmware *fw;
+	const __le16 *fw_data;
+	uint16_t risc_address, risc_code_size;
+	uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
+	int err = 0, num, i;
+#if DUMP_IT_BACK
+	uint8_t *sp, *tbuf;
+	dma_addr_t p_tbuf;
+
+	tbuf = dma_alloc_coherent(&ha->pdev->dev, 8000, &p_tbuf, GFP_KERNEL);
+	if (!tbuf)
+		return -ENOMEM;
+#endif
+
+	fw = qla1280_request_firmware(ha);
+	if (IS_ERR(fw))
+		return PTR_ERR(fw);
+
+	fw_data = (const __le16 *)&fw->data[0];
+	ha->fwstart = __le16_to_cpu(fw_data[2]);
+
+	/* Load RISC code. */
+	risc_address = ha->fwstart;
+	fw_data = (const __le16 *)&fw->data[6];
+	risc_code_size = (fw->size - 6) / 2;
+
+	dprintk(1, "%s: DMA RISC code (%i) words\n",
+			__func__, risc_code_size);
+
+	num = 0;
+	while (risc_code_size > 0) {
+		int warn __attribute__((unused)) = 0;
+
+		cnt = 2000 >> 1;
+
+		if (cnt > risc_code_size)
+			cnt = risc_code_size;
+
+		dprintk(2, "qla1280_setup_chip:  loading risc @ =(0x%p),"
+			"%d,%d(0x%x)\n",
+			fw_data, cnt, num, risc_address);
+		for(i = 0; i < cnt; i++)
+			((__le16 *)ha->request_ring)[i] = fw_data[i];
+
+		mb[0] = LOAD_CMD;
+		mb[1] = risc_address;
+		mb[4] = cnt;
+		mb[3] = ha->request_dma & 0xffff;
+		mb[2] = (ha->request_dma >> 16) & 0xffff;
+		mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
+		mb[6] = upper_32_bits(ha->request_dma) >> 16;
+		dprintk(2, "%s: op=%d  0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
+				__func__, mb[0],
+				(void *)(long)ha->request_dma,
+				mb[6], mb[7], mb[2], mb[3]);
+		err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
+		if (err) {
+			printk(KERN_ERR "scsi(%li): Failed to load partial "
+			       "segment of f\n", ha->host_no);
+			goto out;
+		}
+
+#if DUMP_IT_BACK
+		mb[0] = DUMP_CMD;
+		mb[1] = risc_address;
+		mb[4] = cnt;
+		mb[3] = p_tbuf & 0xffff;
+		mb[2] = (p_tbuf >> 16) & 0xffff;
+		mb[7] = upper_32_bits(p_tbuf) & 0xffff;
+		mb[6] = upper_32_bits(p_tbuf) >> 16;
+
+		err = qla1280_mailbox_command(ha, CMD_ARGS, mb);
+		if (err) {
+			printk(KERN_ERR
+			       "Failed to dump partial segment of f/w\n");
+			goto out;
+		}
+		sp = (uint8_t *)ha->request_ring;
+		for (i = 0; i < (cnt << 1); i++) {
+			if (tbuf[i] != sp[i] && warn++ < 10) {
+				printk(KERN_ERR "%s: FW compare error @ "
+						"byte(0x%x) loop#=%x\n",
+						__func__, i, num);
+				printk(KERN_ERR "%s: FWbyte=%x  "
+						"FWfromChip=%x\n",
+						__func__, sp[i], tbuf[i]);
+				/*break; */
+			}
+		}
+#endif
+		risc_address += cnt;
+		risc_code_size = risc_code_size - cnt;
+		fw_data = fw_data + cnt;
+		num++;
+	}
+
+ out:
+#if DUMP_IT_BACK
+	dma_free_coherent(&ha->pdev->dev, 8000, tbuf, p_tbuf);
+#endif
+	return err;
+}
+
+static int
+qla1280_start_firmware(struct scsi_qla_host *ha)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int err;
+
+	dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
+			__func__);
+
+	/* Verify checksum of loaded RISC code. */
+	mb[0] = MBC_VERIFY_CHECKSUM;
+	/* mb[1] = ql12_risc_code_addr01; */
+	mb[1] = ha->fwstart;
+	err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
+	if (err) {
+		printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
+		return err;
+	}
+
+	/* Start firmware execution. */
+	dprintk(1, "%s: start firmware running.\n", __func__);
+	mb[0] = MBC_EXECUTE_FIRMWARE;
+	mb[1] = ha->fwstart;
+	err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
+	if (err) {
+		printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
+				ha->host_no);
+	}
+
+	return err;
+}
+
+static int
+qla1280_load_firmware(struct scsi_qla_host *ha)
+{
+	/* enter with host_lock taken */
+	int err;
+
+	err = qla1280_chip_diag(ha);
+	if (err)
+		goto out;
+	if (IS_ISP1040(ha))
+		err = qla1280_load_firmware_pio(ha);
+	else
+		err = qla1280_load_firmware_dma(ha);
+	if (err)
+		goto out;
+	err = qla1280_start_firmware(ha);
+ out:
+	return err;
+}
+
+/*
+ * Initialize rings
+ *
+ * Input:
+ *      ha                = adapter block pointer.
+ *      ha->request_ring  = request ring virtual address
+ *      ha->response_ring = response ring virtual address
+ *      ha->request_dma   = request ring physical address
+ *      ha->response_dma  = response ring physical address
+ *
+ * Returns:
+ *      0 = success.
+ */
+static int
+qla1280_init_rings(struct scsi_qla_host *ha)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int status = 0;
+
+	ENTER("qla1280_init_rings");
+
+	/* Clear outstanding commands array. */
+	memset(ha->outstanding_cmds, 0,
+	       sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
+
+	/* Initialize request queue. */
+	ha->request_ring_ptr = ha->request_ring;
+	ha->req_ring_index = 0;
+	ha->req_q_cnt = REQUEST_ENTRY_CNT;
+	/* mb[0] = MBC_INIT_REQUEST_QUEUE; */
+	mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
+	mb[1] = REQUEST_ENTRY_CNT;
+	mb[3] = ha->request_dma & 0xffff;
+	mb[2] = (ha->request_dma >> 16) & 0xffff;
+	mb[4] = 0;
+	mb[7] = upper_32_bits(ha->request_dma) & 0xffff;
+	mb[6] = upper_32_bits(ha->request_dma) >> 16;
+	if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
+					       BIT_3 | BIT_2 | BIT_1 | BIT_0,
+					       &mb[0]))) {
+		/* Initialize response queue. */
+		ha->response_ring_ptr = ha->response_ring;
+		ha->rsp_ring_index = 0;
+		/* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
+		mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
+		mb[1] = RESPONSE_ENTRY_CNT;
+		mb[3] = ha->response_dma & 0xffff;
+		mb[2] = (ha->response_dma >> 16) & 0xffff;
+		mb[5] = 0;
+		mb[7] = upper_32_bits(ha->response_dma) & 0xffff;
+		mb[6] = upper_32_bits(ha->response_dma) >> 16;
+		status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
+						 BIT_3 | BIT_2 | BIT_1 | BIT_0,
+						 &mb[0]);
+	}
+
+	if (status)
+		dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
+
+	LEAVE("qla1280_init_rings");
+	return status;
+}
+
+static void
+qla1280_print_settings(struct nvram *nv)
+{
+	dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
+		nv->bus[0].config_1.initiator_id);
+	dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
+		nv->bus[1].config_1.initiator_id);
+
+	dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
+		nv->bus[0].bus_reset_delay);
+	dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
+		nv->bus[1].bus_reset_delay);
+
+	dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
+	dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
+	dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
+	dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
+
+	dprintk(1, "qla1280 : async data setup time[0]=%d\n",
+		nv->bus[0].config_2.async_data_setup_time);
+	dprintk(1, "qla1280 : async data setup time[1]=%d\n",
+		nv->bus[1].config_2.async_data_setup_time);
+
+	dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
+		nv->bus[0].config_2.req_ack_active_negation);
+	dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
+		nv->bus[1].config_2.req_ack_active_negation);
+
+	dprintk(1, "qla1280 : data line active negation[0]=%d\n",
+		nv->bus[0].config_2.data_line_active_negation);
+	dprintk(1, "qla1280 : data line active negation[1]=%d\n",
+		nv->bus[1].config_2.data_line_active_negation);
+
+	dprintk(1, "qla1280 : disable loading risc code=%d\n",
+		nv->cntr_flags_1.disable_loading_risc_code);
+
+	dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
+		nv->cntr_flags_1.enable_64bit_addressing);
+
+	dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
+		nv->bus[0].selection_timeout);
+	dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
+		nv->bus[1].selection_timeout);
+
+	dprintk(1, "qla1280 : max queue depth[0]=%d\n",
+		nv->bus[0].max_queue_depth);
+	dprintk(1, "qla1280 : max queue depth[1]=%d\n",
+		nv->bus[1].max_queue_depth);
+}
+
+static void
+qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
+{
+	struct nvram *nv = &ha->nvram;
+
+	nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
+	nv->bus[bus].target[target].parameter.auto_request_sense = 1;
+	nv->bus[bus].target[target].parameter.tag_queuing = 1;
+	nv->bus[bus].target[target].parameter.enable_sync = 1;
+#if 1	/* Some SCSI Processors do not seem to like this */
+	nv->bus[bus].target[target].parameter.enable_wide = 1;
+#endif
+	nv->bus[bus].target[target].execution_throttle =
+		nv->bus[bus].max_queue_depth - 1;
+	nv->bus[bus].target[target].parameter.parity_checking = 1;
+	nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
+
+	if (IS_ISP1x160(ha)) {
+		nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
+		nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
+		nv->bus[bus].target[target].sync_period = 9;
+		nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
+		nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
+		nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
+	} else {
+		nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
+		nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
+		nv->bus[bus].target[target].sync_period = 10;
+	}
+}
+
+static void
+qla1280_set_defaults(struct scsi_qla_host *ha)
+{
+	struct nvram *nv = &ha->nvram;
+	int bus, target;
+
+	dprintk(1, "Using defaults for NVRAM: \n");
+	memset(nv, 0, sizeof(struct nvram));
+
+	/* nv->cntr_flags_1.disable_loading_risc_code = 1; */
+	nv->firmware_feature.f.enable_fast_posting = 1;
+	nv->firmware_feature.f.disable_synchronous_backoff = 1;
+	nv->termination.scsi_bus_0_control = 3;
+	nv->termination.scsi_bus_1_control = 3;
+	nv->termination.auto_term_support = 1;
+
+	/*
+	 * Set default FIFO magic - What appropriate values would be here
+	 * is unknown. This is what I have found testing with 12160s.
+	 *
+	 * Now, I would love the magic decoder ring for this one, the
+	 * header file provided by QLogic seems to be bogus or incomplete
+	 * at best.
+	 */
+	nv->isp_config.burst_enable = 1;
+	if (IS_ISP1040(ha))
+		nv->isp_config.fifo_threshold |= 3;
+	else
+		nv->isp_config.fifo_threshold |= 4;
+
+	if (IS_ISP1x160(ha))
+		nv->isp_parameter = 0x01; /* fast memory enable */
+
+	for (bus = 0; bus < MAX_BUSES; bus++) {
+		nv->bus[bus].config_1.initiator_id = 7;
+		nv->bus[bus].config_2.req_ack_active_negation = 1;
+		nv->bus[bus].config_2.data_line_active_negation = 1;
+		nv->bus[bus].selection_timeout = 250;
+		nv->bus[bus].max_queue_depth = 32;
+
+		if (IS_ISP1040(ha)) {
+			nv->bus[bus].bus_reset_delay = 3;
+			nv->bus[bus].config_2.async_data_setup_time = 6;
+			nv->bus[bus].retry_delay = 1;
+		} else {
+			nv->bus[bus].bus_reset_delay = 5;
+			nv->bus[bus].config_2.async_data_setup_time = 8;
+		}
+
+		for (target = 0; target < MAX_TARGETS; target++)
+			qla1280_set_target_defaults(ha, bus, target);
+	}
+}
+
+static int
+qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
+{
+	struct nvram *nv = &ha->nvram;
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int status, lun;
+	uint16_t flag;
+
+	/* Set Target Parameters. */
+	mb[0] = MBC_SET_TARGET_PARAMETERS;
+	mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
+
+	/*
+	 * Do not enable sync and ppr for the initial INQUIRY run. We
+	 * enable this later if we determine the target actually
+	 * supports it.
+	 */
+	mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
+		 | TP_WIDE | TP_PARITY | TP_DISCONNECT);
+
+	if (IS_ISP1x160(ha))
+		mb[3] =	nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
+	else
+		mb[3] =	nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
+	mb[3] |= nv->bus[bus].target[target].sync_period;
+	status = qla1280_mailbox_command(ha, 0x0f, mb);
+
+	/* Save Tag queuing enable flag. */
+	flag = (BIT_0 << target);
+	if (nv->bus[bus].target[target].parameter.tag_queuing)
+		ha->bus_settings[bus].qtag_enables |= flag;
+
+	/* Save Device enable flag. */
+	if (IS_ISP1x160(ha)) {
+		if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
+			ha->bus_settings[bus].device_enables |= flag;
+		ha->bus_settings[bus].lun_disables |= 0;
+	} else {
+		if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
+			ha->bus_settings[bus].device_enables |= flag;
+		/* Save LUN disable flag. */
+		if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
+			ha->bus_settings[bus].lun_disables |= flag;
+	}
+
+	/* Set Device Queue Parameters. */
+	for (lun = 0; lun < MAX_LUNS; lun++) {
+		mb[0] = MBC_SET_DEVICE_QUEUE;
+		mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
+		mb[1] |= lun;
+		mb[2] = nv->bus[bus].max_queue_depth;
+		mb[3] = nv->bus[bus].target[target].execution_throttle;
+		status |= qla1280_mailbox_command(ha, 0x0f, mb);
+	}
+
+	return status;
+}
+
+static int
+qla1280_config_bus(struct scsi_qla_host *ha, int bus)
+{
+	struct nvram *nv = &ha->nvram;
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int target, status;
+
+	/* SCSI Reset Disable. */
+	ha->bus_settings[bus].disable_scsi_reset =
+		nv->bus[bus].config_1.scsi_reset_disable;
+
+	/* Initiator ID. */
+	ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
+	mb[0] = MBC_SET_INITIATOR_ID;
+	mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
+		ha->bus_settings[bus].id;
+	status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
+
+	/* Reset Delay. */
+	ha->bus_settings[bus].bus_reset_delay =
+		nv->bus[bus].bus_reset_delay;
+
+	/* Command queue depth per device. */
+	ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
+
+	/* Set target parameters. */
+	for (target = 0; target < MAX_TARGETS; target++)
+		status |= qla1280_config_target(ha, bus, target);
+
+	return status;
+}
+
+static int
+qla1280_nvram_config(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	struct nvram *nv = &ha->nvram;
+	int bus, target, status = 0;
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+
+	ENTER("qla1280_nvram_config");
+
+	if (ha->nvram_valid) {
+		/* Always force AUTO sense for LINUX SCSI */
+		for (bus = 0; bus < MAX_BUSES; bus++)
+			for (target = 0; target < MAX_TARGETS; target++) {
+				nv->bus[bus].target[target].parameter.
+					auto_request_sense = 1;
+			}
+	} else {
+		qla1280_set_defaults(ha);
+	}
+
+	qla1280_print_settings(nv);
+
+	/* Disable RISC load of firmware. */
+	ha->flags.disable_risc_code_load =
+		nv->cntr_flags_1.disable_loading_risc_code;
+
+	if (IS_ISP1040(ha)) {
+		uint16_t hwrev, cfg1, cdma_conf;
+
+		hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
+
+		cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
+		cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
+
+		/* Busted fifo, says mjacob. */
+		if (hwrev != ISP_CFG0_1040A)
+			cfg1 |= nv->isp_config.fifo_threshold << 4;
+
+		cfg1 |= nv->isp_config.burst_enable << 2;
+		WRT_REG_WORD(&reg->cfg_1, cfg1);
+
+		WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
+		WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
+	} else {
+		uint16_t cfg1, term;
+
+		/* Set ISP hardware DMA burst */
+		cfg1 = nv->isp_config.fifo_threshold << 4;
+		cfg1 |= nv->isp_config.burst_enable << 2;
+		/* Enable DMA arbitration on dual channel controllers */
+		if (ha->ports > 1)
+			cfg1 |= BIT_13;
+		WRT_REG_WORD(&reg->cfg_1, cfg1);
+
+		/* Set SCSI termination. */
+		WRT_REG_WORD(&reg->gpio_enable,
+			     BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
+		term = nv->termination.scsi_bus_1_control;
+		term |= nv->termination.scsi_bus_0_control << 2;
+		term |= nv->termination.auto_term_support << 7;
+		RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+		WRT_REG_WORD(&reg->gpio_data, term);
+	}
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+
+	/* ISP parameter word. */
+	mb[0] = MBC_SET_SYSTEM_PARAMETER;
+	mb[1] = nv->isp_parameter;
+	status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
+
+	if (IS_ISP1x40(ha)) {
+		/* clock rate - for qla1240 and older, only */
+		mb[0] = MBC_SET_CLOCK_RATE;
+		mb[1] = 40;
+	 	status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
+	}
+
+	/* Firmware feature word. */
+	mb[0] = MBC_SET_FIRMWARE_FEATURES;
+	mb[1] = nv->firmware_feature.f.enable_fast_posting;
+	mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
+	mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
+	status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
+
+	/* Retry count and delay. */
+	mb[0] = MBC_SET_RETRY_COUNT;
+	mb[1] = nv->bus[0].retry_count;
+	mb[2] = nv->bus[0].retry_delay;
+	mb[6] = nv->bus[1].retry_count;
+	mb[7] = nv->bus[1].retry_delay;
+	status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
+					  BIT_1 | BIT_0, &mb[0]);
+
+	/* ASYNC data setup time. */
+	mb[0] = MBC_SET_ASYNC_DATA_SETUP;
+	mb[1] = nv->bus[0].config_2.async_data_setup_time;
+	mb[2] = nv->bus[1].config_2.async_data_setup_time;
+	status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
+
+	/* Active negation states. */
+	mb[0] = MBC_SET_ACTIVE_NEGATION;
+	mb[1] = 0;
+	if (nv->bus[0].config_2.req_ack_active_negation)
+		mb[1] |= BIT_5;
+	if (nv->bus[0].config_2.data_line_active_negation)
+		mb[1] |= BIT_4;
+	mb[2] = 0;
+	if (nv->bus[1].config_2.req_ack_active_negation)
+		mb[2] |= BIT_5;
+	if (nv->bus[1].config_2.data_line_active_negation)
+		mb[2] |= BIT_4;
+	status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
+
+	mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
+	mb[1] = 2;	/* Reset SCSI bus and return all outstanding IO */
+	status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
+
+	/* thingy */
+	mb[0] = MBC_SET_PCI_CONTROL;
+	mb[1] = BIT_1;	/* Data DMA Channel Burst Enable */
+	mb[2] = BIT_1;	/* Command DMA Channel Burst Enable */
+	status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
+
+	mb[0] = MBC_SET_TAG_AGE_LIMIT;
+	mb[1] = 8;
+	status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
+
+	/* Selection timeout. */
+	mb[0] = MBC_SET_SELECTION_TIMEOUT;
+	mb[1] = nv->bus[0].selection_timeout;
+	mb[2] = nv->bus[1].selection_timeout;
+	status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
+
+	for (bus = 0; bus < ha->ports; bus++)
+		status |= qla1280_config_bus(ha, bus);
+
+	if (status)
+		dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
+
+	LEAVE("qla1280_nvram_config");
+	return status;
+}
+
+/*
+ * Get NVRAM data word
+ *      Calculates word position in NVRAM and calls request routine to
+ *      get the word from NVRAM.
+ *
+ * Input:
+ *      ha      = adapter block pointer.
+ *      address = NVRAM word address.
+ *
+ * Returns:
+ *      data word.
+ */
+static uint16_t
+qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
+{
+	uint32_t nv_cmd;
+	uint16_t data;
+
+	nv_cmd = address << 16;
+	nv_cmd |= NV_READ_OP;
+
+	data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
+
+	dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
+		"0x%x", data);
+
+	return data;
+}
+
+/*
+ * NVRAM request
+ *      Sends read command to NVRAM and gets data from NVRAM.
+ *
+ * Input:
+ *      ha     = adapter block pointer.
+ *      nv_cmd = Bit 26     = start bit
+ *               Bit 25, 24 = opcode
+ *               Bit 23-16  = address
+ *               Bit 15-0   = write data
+ *
+ * Returns:
+ *      data word.
+ */
+static uint16_t
+qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	int cnt;
+	uint16_t data = 0;
+	uint16_t reg_data;
+
+	/* Send command to NVRAM. */
+
+	nv_cmd <<= 5;
+	for (cnt = 0; cnt < 11; cnt++) {
+		if (nv_cmd & BIT_31)
+			qla1280_nv_write(ha, NV_DATA_OUT);
+		else
+			qla1280_nv_write(ha, 0);
+		nv_cmd <<= 1;
+	}
+
+	/* Read data from NVRAM. */
+
+	for (cnt = 0; cnt < 16; cnt++) {
+		WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
+		RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+		NVRAM_DELAY();
+		data <<= 1;
+		reg_data = RD_REG_WORD(&reg->nvram);
+		if (reg_data & NV_DATA_IN)
+			data |= BIT_0;
+		WRT_REG_WORD(&reg->nvram, NV_SELECT);
+		RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+		NVRAM_DELAY();
+	}
+
+	/* Deselect chip. */
+
+	WRT_REG_WORD(&reg->nvram, NV_DESELECT);
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+	NVRAM_DELAY();
+
+	return data;
+}
+
+static void
+qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+
+	WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+	NVRAM_DELAY();
+	WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+	NVRAM_DELAY();
+	WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+	NVRAM_DELAY();
+}
+
+/*
+ * Mailbox Command
+ *      Issue mailbox command and waits for completion.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *      mr = mailbox registers to load.
+ *      mb = data pointer for mailbox registers.
+ *
+ * Output:
+ *      mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	int status = 0;
+	int cnt;
+	uint16_t *optr, *iptr;
+	uint16_t __iomem *mptr;
+	DECLARE_COMPLETION_ONSTACK(wait);
+
+	ENTER("qla1280_mailbox_command");
+
+	if (ha->mailbox_wait) {
+		printk(KERN_ERR "Warning mailbox wait already in use!\n");
+	}
+	ha->mailbox_wait = &wait;
+
+	/*
+	 * We really should start out by verifying that the mailbox is
+	 * available before starting sending the command data
+	 */
+	/* Load mailbox registers. */
+	mptr = (uint16_t __iomem *) &reg->mailbox0;
+	iptr = mb;
+	for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
+		if (mr & BIT_0) {
+			WRT_REG_WORD(mptr, (*iptr));
+		}
+
+		mr >>= 1;
+		mptr++;
+		iptr++;
+	}
+
+	/* Issue set host interrupt command. */
+
+	/* set up a timer just in case we're really jammed */
+	timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
+	mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
+
+	spin_unlock_irq(ha->host->host_lock);
+	WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
+	qla1280_debounce_register(&reg->istatus);
+
+	wait_for_completion(&wait);
+	del_timer_sync(&ha->mailbox_timer);
+
+	spin_lock_irq(ha->host->host_lock);
+
+	ha->mailbox_wait = NULL;
+
+	/* Check for mailbox command timeout. */
+	if (ha->mailbox_out[0] != MBS_CMD_CMP) {
+		printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
+		       "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
+		       "0x%04x\n", 
+		       mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
+		printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
+		       RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
+		       RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
+		printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
+		       RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
+		       RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
+		status = 1;
+	}
+
+	/* Load return mailbox registers. */
+	optr = mb;
+	iptr = (uint16_t *) &ha->mailbox_out[0];
+	mr = MAILBOX_REGISTER_COUNT;
+	memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
+
+	if (ha->flags.reset_marker)
+		qla1280_rst_aen(ha);
+
+	if (status)
+		dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
+			"0x%x ****\n", mb[0]);
+
+	LEAVE("qla1280_mailbox_command");
+	return status;
+}
+
+/*
+ * qla1280_poll
+ *      Polls ISP for interrupts.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ */
+static void
+qla1280_poll(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	uint16_t data;
+	LIST_HEAD(done_q);
+
+	/* ENTER("qla1280_poll"); */
+
+	/* Check for pending interrupts. */
+	data = RD_REG_WORD(&reg->istatus);
+	if (data & RISC_INT)
+		qla1280_isr(ha, &done_q);
+
+	if (!ha->mailbox_wait) {
+		if (ha->flags.reset_marker)
+			qla1280_rst_aen(ha);
+	}
+
+	if (!list_empty(&done_q))
+		qla1280_done(ha);
+
+	/* LEAVE("qla1280_poll"); */
+}
+
+/*
+ * qla1280_bus_reset
+ *      Issue SCSI bus reset.
+ *
+ * Input:
+ *      ha  = adapter block pointer.
+ *      bus = SCSI bus number.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	uint16_t reset_delay;
+	int status;
+
+	dprintk(3, "qla1280_bus_reset: entered\n");
+
+	if (qla1280_verbose)
+		printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
+		       ha->host_no, bus);
+
+	reset_delay = ha->bus_settings[bus].bus_reset_delay;
+	mb[0] = MBC_BUS_RESET;
+	mb[1] = reset_delay;
+	mb[2] = (uint16_t) bus;
+	status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
+
+	if (status) {
+		if (ha->bus_settings[bus].failed_reset_count > 2)
+			ha->bus_settings[bus].scsi_bus_dead = 1;
+		ha->bus_settings[bus].failed_reset_count++;
+	} else {
+		spin_unlock_irq(ha->host->host_lock);
+		ssleep(reset_delay);
+		spin_lock_irq(ha->host->host_lock);
+
+		ha->bus_settings[bus].scsi_bus_dead = 0;
+		ha->bus_settings[bus].failed_reset_count = 0;
+		ha->bus_settings[bus].reset_marker = 0;
+		/* Issue marker command. */
+		qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
+	}
+
+	/*
+	 * We should probably call qla1280_set_target_parameters()
+	 * here as well for all devices on the bus.
+	 */
+
+	if (status)
+		dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
+	else
+		dprintk(3, "qla1280_bus_reset: exiting normally\n");
+
+	return status;
+}
+
+/*
+ * qla1280_device_reset
+ *      Issue bus device reset message to the target.
+ *
+ * Input:
+ *      ha      = adapter block pointer.
+ *      bus     = SCSI BUS number.
+ *      target  = SCSI ID.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int status;
+
+	ENTER("qla1280_device_reset");
+
+	mb[0] = MBC_ABORT_TARGET;
+	mb[1] = (bus ? (target | BIT_7) : target) << 8;
+	mb[2] = 1;
+	status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
+
+	/* Issue marker command. */
+	qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
+
+	if (status)
+		dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
+
+	LEAVE("qla1280_device_reset");
+	return status;
+}
+
+/*
+ * qla1280_abort_command
+ *      Abort command aborts a specified IOCB.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *      sp = SB structure pointer.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	unsigned int bus, target, lun;
+	int status;
+
+	ENTER("qla1280_abort_command");
+
+	bus = SCSI_BUS_32(sp->cmd);
+	target = SCSI_TCN_32(sp->cmd);
+	lun = SCSI_LUN_32(sp->cmd);
+
+	sp->flags |= SRB_ABORT_PENDING;
+
+	mb[0] = MBC_ABORT_COMMAND;
+	mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
+	mb[2] = handle >> 16;
+	mb[3] = handle & 0xffff;
+	status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
+
+	if (status) {
+		dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
+		sp->flags &= ~SRB_ABORT_PENDING;
+	}
+
+
+	LEAVE("qla1280_abort_command");
+	return status;
+}
+
+/*
+ * qla1280_reset_adapter
+ *      Reset adapter.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ */
+static void
+qla1280_reset_adapter(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+
+	ENTER("qla1280_reset_adapter");
+
+	/* Disable ISP chip */
+	ha->flags.online = 0;
+	WRT_REG_WORD(&reg->ictrl, ISP_RESET);
+	WRT_REG_WORD(&reg->host_cmd,
+		     HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
+	RD_REG_WORD(&reg->id_l);	/* Flush PCI write */
+
+	LEAVE("qla1280_reset_adapter");
+}
+
+/*
+ *  Issue marker command.
+ *      Function issues marker IOCB.
+ *
+ * Input:
+ *      ha   = adapter block pointer.
+ *      bus  = SCSI BUS number
+ *      id   = SCSI ID
+ *      lun  = SCSI LUN
+ *      type = marker modifier
+ */
+static void
+qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
+{
+	struct mrk_entry *pkt;
+
+	ENTER("qla1280_marker");
+
+	/* Get request packet. */
+	if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
+		pkt->entry_type = MARKER_TYPE;
+		pkt->lun = (uint8_t) lun;
+		pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
+		pkt->modifier = type;
+		pkt->entry_status = 0;
+
+		/* Issue command to ISP */
+		qla1280_isp_cmd(ha);
+	}
+
+	LEAVE("qla1280_marker");
+}
+
+
+/*
+ * qla1280_64bit_start_scsi
+ *      The start SCSI is responsible for building request packets on
+ *      request ring and modifying ISP input pointer.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *      sp = SB structure pointer.
+ *
+ * Returns:
+ *      0 = success, was able to issue command.
+ */
+#ifdef QLA_64BIT_PTR
+static int
+qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	struct scsi_cmnd *cmd = sp->cmd;
+	cmd_a64_entry_t *pkt;
+	__le32 *dword_ptr;
+	dma_addr_t dma_handle;
+	int status = 0;
+	int cnt;
+	int req_cnt;
+	int seg_cnt;
+	u8 dir;
+
+	ENTER("qla1280_64bit_start_scsi:");
+
+	/* Calculate number of entries and segments required. */
+	req_cnt = 1;
+	seg_cnt = scsi_dma_map(cmd);
+	if (seg_cnt > 0) {
+		if (seg_cnt > 2) {
+			req_cnt += (seg_cnt - 2) / 5;
+			if ((seg_cnt - 2) % 5)
+				req_cnt++;
+		}
+	} else if (seg_cnt < 0) {
+		status = 1;
+		goto out;
+	}
+
+	if ((req_cnt + 2) >= ha->req_q_cnt) {
+		/* Calculate number of free request entries. */
+		cnt = RD_REG_WORD(&reg->mailbox4);
+		if (ha->req_ring_index < cnt)
+			ha->req_q_cnt = cnt - ha->req_ring_index;
+		else
+			ha->req_q_cnt =
+				REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
+	}
+
+	dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
+		ha->req_q_cnt, seg_cnt);
+
+	/* If room for request in request ring. */
+	if ((req_cnt + 2) >= ha->req_q_cnt) {
+		status = SCSI_MLQUEUE_HOST_BUSY;
+		dprintk(2, "qla1280_start_scsi: in-ptr=0x%x  req_q_cnt="
+			"0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
+			req_cnt);
+		goto out;
+	}
+
+	/* Check for room in outstanding command list. */
+	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
+		     ha->outstanding_cmds[cnt] != NULL; cnt++);
+
+	if (cnt >= MAX_OUTSTANDING_COMMANDS) {
+		status = SCSI_MLQUEUE_HOST_BUSY;
+		dprintk(2, "qla1280_start_scsi: NO ROOM IN "
+			"OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
+		goto out;
+	}
+
+	ha->outstanding_cmds[cnt] = sp;
+	ha->req_q_cnt -= req_cnt;
+	CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
+
+	dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
+		cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
+	dprintk(2, "             bus %i, target %i, lun %i\n",
+		SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
+	qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
+
+	/*
+	 * Build command packet.
+	 */
+	pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
+
+	pkt->entry_type = COMMAND_A64_TYPE;
+	pkt->entry_count = (uint8_t) req_cnt;
+	pkt->sys_define = (uint8_t) ha->req_ring_index;
+	pkt->entry_status = 0;
+	pkt->handle = cpu_to_le32(cnt);
+
+	/* Zero out remaining portion of packet. */
+	memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
+
+	/* Set ISP command timeout. */
+	pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
+
+	/* Set device target ID and LUN */
+	pkt->lun = SCSI_LUN_32(cmd);
+	pkt->target = SCSI_BUS_32(cmd) ?
+		(SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
+
+	/* Enable simple tag queuing if device supports it. */
+	if (cmd->device->simple_tags)
+		pkt->control_flags |= cpu_to_le16(BIT_3);
+
+	/* Load SCSI command packet. */
+	pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
+	memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
+	/* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
+
+	/* Set transfer direction. */
+	dir = qla1280_data_direction(cmd);
+	pkt->control_flags |= cpu_to_le16(dir);
+
+	/* Set total data segment count. */
+	pkt->dseg_count = cpu_to_le16(seg_cnt);
+
+	/*
+	 * Load data segments.
+	 */
+	if (seg_cnt) {	/* If data transfer. */
+		struct scatterlist *sg, *s;
+		int remseg = seg_cnt;
+
+		sg = scsi_sglist(cmd);
+
+		/* Setup packet address segment pointer. */
+		dword_ptr = (u32 *)&pkt->dseg_0_address;
+
+		/* Load command entry data segments. */
+		for_each_sg(sg, s, seg_cnt, cnt) {
+			if (cnt == 2)
+				break;
+
+			dma_handle = sg_dma_address(s);
+			*dword_ptr++ =
+				cpu_to_le32(lower_32_bits(dma_handle));
+			*dword_ptr++ =
+				cpu_to_le32(upper_32_bits(dma_handle));
+			*dword_ptr++ = cpu_to_le32(sg_dma_len(s));
+			dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
+				cpu_to_le32(upper_32_bits(dma_handle)),
+				cpu_to_le32(lower_32_bits(dma_handle)),
+				cpu_to_le32(sg_dma_len(sg_next(s))));
+			remseg--;
+		}
+		dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
+			"command packet data - b %i, t %i, l %i \n",
+			SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
+			SCSI_LUN_32(cmd));
+		qla1280_dump_buffer(5, (char *)pkt,
+				    REQUEST_ENTRY_SIZE);
+
+		/*
+		 * Build continuation packets.
+		 */
+		dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
+			"remains\n", seg_cnt);
+
+		while (remseg > 0) {
+			/* Update sg start */
+			sg = s;
+			/* Adjust ring index. */
+			ha->req_ring_index++;
+			if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
+				ha->req_ring_index = 0;
+				ha->request_ring_ptr =
+					ha->request_ring;
+			} else
+				ha->request_ring_ptr++;
+
+			pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
+
+			/* Zero out packet. */
+			memset(pkt, 0, REQUEST_ENTRY_SIZE);
+
+			/* Load packet defaults. */
+			((struct cont_a64_entry *) pkt)->entry_type =
+				CONTINUE_A64_TYPE;
+			((struct cont_a64_entry *) pkt)->entry_count = 1;
+			((struct cont_a64_entry *) pkt)->sys_define =
+				(uint8_t)ha->req_ring_index;
+			/* Setup packet address segment pointer. */
+			dword_ptr =
+				(u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
+
+			/* Load continuation entry data segments. */
+			for_each_sg(sg, s, remseg, cnt) {
+				if (cnt == 5)
+					break;
+				dma_handle = sg_dma_address(s);
+				*dword_ptr++ =
+					cpu_to_le32(lower_32_bits(dma_handle));
+				*dword_ptr++ =
+					cpu_to_le32(upper_32_bits(dma_handle));
+				*dword_ptr++ =
+					cpu_to_le32(sg_dma_len(s));
+				dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
+					cpu_to_le32(upper_32_bits(dma_handle)),
+					cpu_to_le32(lower_32_bits(dma_handle)),
+					cpu_to_le32(sg_dma_len(s)));
+			}
+			remseg -= cnt;
+			dprintk(5, "qla1280_64bit_start_scsi: "
+				"continuation packet data - b %i, t "
+				"%i, l %i \n", SCSI_BUS_32(cmd),
+				SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
+			qla1280_dump_buffer(5, (char *)pkt,
+					    REQUEST_ENTRY_SIZE);
+		}
+	} else {	/* No data transfer */
+		dprintk(5, "qla1280_64bit_start_scsi: No data, command "
+			"packet data - b %i, t %i, l %i \n",
+			SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
+		qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
+	}
+	/* Adjust ring index. */
+	ha->req_ring_index++;
+	if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
+		ha->req_ring_index = 0;
+		ha->request_ring_ptr = ha->request_ring;
+	} else
+		ha->request_ring_ptr++;
+
+	/* Set chip new ring index. */
+	dprintk(2,
+		"qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
+	sp->flags |= SRB_SENT;
+	ha->actthreads++;
+	WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
+
+ out:
+	if (status)
+		dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
+	else
+		dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
+
+	return status;
+}
+#else /* !QLA_64BIT_PTR */
+
+/*
+ * qla1280_32bit_start_scsi
+ *      The start SCSI is responsible for building request packets on
+ *      request ring and modifying ISP input pointer.
+ *
+ *      The Qlogic firmware interface allows every queue slot to have a SCSI
+ *      command and up to 4 scatter/gather (SG) entries.  If we need more
+ *      than 4 SG entries, then continuation entries are used that can
+ *      hold another 7 entries each.  The start routine determines if there
+ *      is eought empty slots then build the combination of requests to
+ *      fulfill the OS request.
+ *
+ * Input:
+ *      ha = adapter block pointer.
+ *      sp = SCSI Request Block structure pointer.
+ *
+ * Returns:
+ *      0 = success, was able to issue command.
+ */
+static int
+qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	struct scsi_cmnd *cmd = sp->cmd;
+	struct cmd_entry *pkt;
+	__le32 *dword_ptr;
+	int status = 0;
+	int cnt;
+	int req_cnt;
+	int seg_cnt;
+	u8 dir;
+
+	ENTER("qla1280_32bit_start_scsi");
+
+	dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
+		cmd->cmnd[0]);
+
+	/* Calculate number of entries and segments required. */
+	req_cnt = 1;
+	seg_cnt = scsi_dma_map(cmd);
+	if (seg_cnt) {
+		/*
+		 * if greater than four sg entries then we need to allocate
+		 * continuation entries
+		 */
+		if (seg_cnt > 4) {
+			req_cnt += (seg_cnt - 4) / 7;
+			if ((seg_cnt - 4) % 7)
+				req_cnt++;
+		}
+		dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
+			cmd, seg_cnt, req_cnt);
+	} else if (seg_cnt < 0) {
+		status = 1;
+		goto out;
+	}
+
+	if ((req_cnt + 2) >= ha->req_q_cnt) {
+		/* Calculate number of free request entries. */
+		cnt = RD_REG_WORD(&reg->mailbox4);
+		if (ha->req_ring_index < cnt)
+			ha->req_q_cnt = cnt - ha->req_ring_index;
+		else
+			ha->req_q_cnt =
+				REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
+	}
+
+	dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
+		ha->req_q_cnt, seg_cnt);
+	/* If room for request in request ring. */
+	if ((req_cnt + 2) >= ha->req_q_cnt) {
+		status = SCSI_MLQUEUE_HOST_BUSY;
+		dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
+			"req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
+			ha->req_q_cnt, req_cnt);
+		goto out;
+	}
+
+	/* Check for empty slot in outstanding command list. */
+	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
+	     ha->outstanding_cmds[cnt]; cnt++);
+
+	if (cnt >= MAX_OUTSTANDING_COMMANDS) {
+		status = SCSI_MLQUEUE_HOST_BUSY;
+		dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
+			"ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
+		goto out;
+	}
+
+	CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
+	ha->outstanding_cmds[cnt] = sp;
+	ha->req_q_cnt -= req_cnt;
+
+	/*
+	 * Build command packet.
+	 */
+	pkt = (struct cmd_entry *) ha->request_ring_ptr;
+
+	pkt->entry_type = COMMAND_TYPE;
+	pkt->entry_count = (uint8_t) req_cnt;
+	pkt->sys_define = (uint8_t) ha->req_ring_index;
+	pkt->entry_status = 0;
+	pkt->handle = cpu_to_le32(cnt);
+
+	/* Zero out remaining portion of packet. */
+	memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
+
+	/* Set ISP command timeout. */
+	pkt->timeout = cpu_to_le16(scsi_cmd_to_rq(cmd)->timeout / HZ);
+
+	/* Set device target ID and LUN */
+	pkt->lun = SCSI_LUN_32(cmd);
+	pkt->target = SCSI_BUS_32(cmd) ?
+		(SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
+
+	/* Enable simple tag queuing if device supports it. */
+	if (cmd->device->simple_tags)
+		pkt->control_flags |= cpu_to_le16(BIT_3);
+
+	/* Load SCSI command packet. */
+	pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
+	memcpy(pkt->scsi_cdb, CMD_CDBP(cmd), CMD_CDBLEN(cmd));
+
+	/*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
+	/* Set transfer direction. */
+	dir = qla1280_data_direction(cmd);
+	pkt->control_flags |= cpu_to_le16(dir);
+
+	/* Set total data segment count. */
+	pkt->dseg_count = cpu_to_le16(seg_cnt);
+
+	/*
+	 * Load data segments.
+	 */
+	if (seg_cnt) {
+		struct scatterlist *sg, *s;
+		int remseg = seg_cnt;
+
+		sg = scsi_sglist(cmd);
+
+		/* Setup packet address segment pointer. */
+		dword_ptr = &pkt->dseg_0_address;
+
+		dprintk(3, "Building S/G data segments..\n");
+		qla1280_dump_buffer(1, (char *)sg, 4 * 16);
+
+		/* Load command entry data segments. */
+		for_each_sg(sg, s, seg_cnt, cnt) {
+			if (cnt == 4)
+				break;
+			*dword_ptr++ =
+				cpu_to_le32(lower_32_bits(sg_dma_address(s)));
+			*dword_ptr++ = cpu_to_le32(sg_dma_len(s));
+			dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
+				(lower_32_bits(sg_dma_address(s))),
+				(sg_dma_len(s)));
+			remseg--;
+		}
+		/*
+		 * Build continuation packets.
+		 */
+		dprintk(3, "S/G Building Continuation"
+			"...seg_cnt=0x%x remains\n", seg_cnt);
+		while (remseg > 0) {
+			/* Continue from end point */
+			sg = s;
+			/* Adjust ring index. */
+			ha->req_ring_index++;
+			if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
+				ha->req_ring_index = 0;
+				ha->request_ring_ptr =
+					ha->request_ring;
+			} else
+				ha->request_ring_ptr++;
+
+			pkt = (struct cmd_entry *)ha->request_ring_ptr;
+
+			/* Zero out packet. */
+			memset(pkt, 0, REQUEST_ENTRY_SIZE);
+
+			/* Load packet defaults. */
+			((struct cont_entry *) pkt)->
+				entry_type = CONTINUE_TYPE;
+			((struct cont_entry *) pkt)->entry_count = 1;
+
+			((struct cont_entry *) pkt)->sys_define =
+				(uint8_t) ha->req_ring_index;
+
+			/* Setup packet address segment pointer. */
+			dword_ptr =
+				&((struct cont_entry *) pkt)->dseg_0_address;
+
+			/* Load continuation entry data segments. */
+			for_each_sg(sg, s, remseg, cnt) {
+				if (cnt == 7)
+					break;
+				*dword_ptr++ =
+					cpu_to_le32(lower_32_bits(sg_dma_address(s)));
+				*dword_ptr++ =
+					cpu_to_le32(sg_dma_len(s));
+				dprintk(1,
+					"S/G Segment Cont. phys_addr=0x%x, "
+					"len=0x%x\n",
+					cpu_to_le32(lower_32_bits(sg_dma_address(s))),
+					cpu_to_le32(sg_dma_len(s)));
+			}
+			remseg -= cnt;
+			dprintk(5, "qla1280_32bit_start_scsi: "
+				"continuation packet data - "
+				"scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
+				SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
+			qla1280_dump_buffer(5, (char *)pkt,
+					    REQUEST_ENTRY_SIZE);
+		}
+	} else {	/* No data transfer at all */
+		dprintk(5, "qla1280_32bit_start_scsi: No data, command "
+			"packet data - \n");
+		qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
+	}
+	dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
+	qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
+			    REQUEST_ENTRY_SIZE);
+
+	/* Adjust ring index. */
+	ha->req_ring_index++;
+	if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
+		ha->req_ring_index = 0;
+		ha->request_ring_ptr = ha->request_ring;
+	} else
+		ha->request_ring_ptr++;
+
+	/* Set chip new ring index. */
+	dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
+		"for pending command\n");
+	sp->flags |= SRB_SENT;
+	ha->actthreads++;
+	WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
+
+out:
+	if (status)
+		dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
+
+	LEAVE("qla1280_32bit_start_scsi");
+
+	return status;
+}
+#endif
+
+/*
+ * qla1280_req_pkt
+ *      Function is responsible for locking ring and
+ *      getting a zeroed out request packet.
+ *
+ * Input:
+ *      ha  = adapter block pointer.
+ *
+ * Returns:
+ *      0 = failed to get slot.
+ */
+static request_t *
+qla1280_req_pkt(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	request_t *pkt = NULL;
+	int cnt;
+	uint32_t timer;
+
+	ENTER("qla1280_req_pkt");
+
+	/*
+	 * This can be called from interrupt context, damn it!!!
+	 */
+	/* Wait for 30 seconds for slot. */
+	for (timer = 15000000; timer; timer--) {
+		if (ha->req_q_cnt > 0) {
+			/* Calculate number of free request entries. */
+			cnt = RD_REG_WORD(&reg->mailbox4);
+			if (ha->req_ring_index < cnt)
+				ha->req_q_cnt = cnt - ha->req_ring_index;
+			else
+				ha->req_q_cnt =
+					REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
+		}
+
+		/* Found empty request ring slot? */
+		if (ha->req_q_cnt > 0) {
+			ha->req_q_cnt--;
+			pkt = ha->request_ring_ptr;
+
+			/* Zero out packet. */
+			memset(pkt, 0, REQUEST_ENTRY_SIZE);
+
+			/*
+			 * How can this be right when we have a ring
+			 * size of 512???
+			 */
+			/* Set system defined field. */
+			pkt->sys_define = (uint8_t) ha->req_ring_index;
+
+			/* Set entry count. */
+			pkt->entry_count = 1;
+
+			break;
+		}
+
+		udelay(2);	/* 10 */
+
+		/* Check for pending interrupts. */
+		qla1280_poll(ha);
+	}
+
+	if (!pkt)
+		dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
+	else
+		dprintk(3, "qla1280_req_pkt: exiting normally\n");
+
+	return pkt;
+}
+
+/*
+ * qla1280_isp_cmd
+ *      Function is responsible for modifying ISP input pointer.
+ *      Releases ring lock.
+ *
+ * Input:
+ *      ha  = adapter block pointer.
+ */
+static void
+qla1280_isp_cmd(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+
+	ENTER("qla1280_isp_cmd");
+
+	dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
+	qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
+			    REQUEST_ENTRY_SIZE);
+
+	/* Adjust ring index. */
+	ha->req_ring_index++;
+	if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
+		ha->req_ring_index = 0;
+		ha->request_ring_ptr = ha->request_ring;
+	} else
+		ha->request_ring_ptr++;
+
+	/*
+	 * Update request index to mailbox4 (Request Queue In).
+	 */
+	WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
+
+	LEAVE("qla1280_isp_cmd");
+}
+
+/****************************************************************************/
+/*                        Interrupt Service Routine.                        */
+/****************************************************************************/
+
+/****************************************************************************
+ *  qla1280_isr
+ *      Calls I/O done on command completion.
+ *
+ * Input:
+ *      ha           = adapter block pointer.
+ *      done_q       = done queue.
+ ****************************************************************************/
+static void
+qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	struct response *pkt;
+	struct srb *sp = NULL;
+	uint16_t mailbox[MAILBOX_REGISTER_COUNT];
+	uint16_t *wptr;
+	uint32_t index;
+	u16 istatus;
+
+	ENTER("qla1280_isr");
+
+	istatus = RD_REG_WORD(&reg->istatus);
+	if (!(istatus & (RISC_INT | PCI_INT)))
+		return;
+
+	/* Save mailbox register 5 */
+	mailbox[5] = RD_REG_WORD(&reg->mailbox5);
+
+	/* Check for mailbox interrupt. */
+
+	mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
+
+	if (mailbox[0] & BIT_0) {
+		/* Get mailbox data. */
+		/* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
+
+		wptr = &mailbox[0];
+		*wptr++ = RD_REG_WORD(&reg->mailbox0);
+		*wptr++ = RD_REG_WORD(&reg->mailbox1);
+		*wptr = RD_REG_WORD(&reg->mailbox2);
+		if (mailbox[0] != MBA_SCSI_COMPLETION) {
+			wptr++;
+			*wptr++ = RD_REG_WORD(&reg->mailbox3);
+			*wptr++ = RD_REG_WORD(&reg->mailbox4);
+			wptr++;
+			*wptr++ = RD_REG_WORD(&reg->mailbox6);
+			*wptr = RD_REG_WORD(&reg->mailbox7);
+		}
+
+		/* Release mailbox registers. */
+
+		WRT_REG_WORD(&reg->semaphore, 0);
+		WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
+
+		dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
+			mailbox[0]);
+
+		/* Handle asynchronous event */
+		switch (mailbox[0]) {
+		case MBA_SCSI_COMPLETION:	/* Response completion */
+			dprintk(5, "qla1280_isr: mailbox SCSI response "
+				"completion\n");
+
+			if (ha->flags.online) {
+				/* Get outstanding command index. */
+				index = mailbox[2] << 16 | mailbox[1];
+
+				/* Validate handle. */
+				if (index < MAX_OUTSTANDING_COMMANDS)
+					sp = ha->outstanding_cmds[index];
+				else
+					sp = NULL;
+
+				if (sp) {
+					/* Free outstanding command slot. */
+					ha->outstanding_cmds[index] = NULL;
+
+					/* Save ISP completion status */
+					CMD_RESULT(sp->cmd) = 0;
+					CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
+
+					/* Place block on done queue */
+					list_add_tail(&sp->list, done_q);
+				} else {
+					/*
+					 * If we get here we have a real problem!
+					 */
+					printk(KERN_WARNING
+					       "qla1280: ISP invalid handle\n");
+				}
+			}
+			break;
+
+		case MBA_BUS_RESET:	/* SCSI Bus Reset */
+			ha->flags.reset_marker = 1;
+			index = mailbox[6] & BIT_0;
+			ha->bus_settings[index].reset_marker = 1;
+
+			printk(KERN_DEBUG "qla1280_isr(): index %i "
+			       "asynchronous BUS_RESET\n", index);
+			break;
+
+		case MBA_SYSTEM_ERR:	/* System Error */
+			printk(KERN_WARNING
+			       "qla1280: ISP System Error - mbx1=%xh, mbx2="
+			       "%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
+			       mailbox[3]);
+			break;
+
+		case MBA_REQ_TRANSFER_ERR:	/* Request Transfer Error */
+			printk(KERN_WARNING
+			       "qla1280: ISP Request Transfer Error\n");
+			break;
+
+		case MBA_RSP_TRANSFER_ERR:	/* Response Transfer Error */
+			printk(KERN_WARNING
+			       "qla1280: ISP Response Transfer Error\n");
+			break;
+
+		case MBA_WAKEUP_THRES:	/* Request Queue Wake-up */
+			dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
+			break;
+
+		case MBA_TIMEOUT_RESET:	/* Execution Timeout Reset */
+			dprintk(2,
+				"qla1280_isr: asynchronous TIMEOUT_RESET\n");
+			break;
+
+		case MBA_DEVICE_RESET:	/* Bus Device Reset */
+			printk(KERN_INFO "qla1280_isr(): asynchronous "
+			       "BUS_DEVICE_RESET\n");
+
+			ha->flags.reset_marker = 1;
+			index = mailbox[6] & BIT_0;
+			ha->bus_settings[index].reset_marker = 1;
+			break;
+
+		case MBA_BUS_MODE_CHANGE:
+			dprintk(2,
+				"qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
+			break;
+
+		default:
+			/* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
+			if (mailbox[0] < MBA_ASYNC_EVENT) {
+				wptr = &mailbox[0];
+				memcpy((uint16_t *) ha->mailbox_out, wptr,
+				       MAILBOX_REGISTER_COUNT *
+				       sizeof(uint16_t));
+
+				if(ha->mailbox_wait != NULL)
+					complete(ha->mailbox_wait);
+			}
+			break;
+		}
+	} else {
+		WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
+	}
+
+	/*
+	 * We will receive interrupts during mailbox testing prior to
+	 * the card being marked online, hence the double check.
+	 */
+	if (!(ha->flags.online && !ha->mailbox_wait)) {
+		dprintk(2, "qla1280_isr: Response pointer Error\n");
+		goto out;
+	}
+
+	if (mailbox[5] >= RESPONSE_ENTRY_CNT)
+		goto out;
+
+	while (ha->rsp_ring_index != mailbox[5]) {
+		pkt = ha->response_ring_ptr;
+
+		dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
+			" = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
+		dprintk(5,"qla1280_isr: response packet data\n");
+		qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
+
+		if (pkt->entry_type == STATUS_TYPE) {
+			if ((le16_to_cpu(pkt->scsi_status) & 0xff)
+			    || pkt->comp_status || pkt->entry_status) {
+				dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
+					"0x%x mailbox[5] = 0x%x, comp_status "
+					"= 0x%x, scsi_status = 0x%x\n",
+					ha->rsp_ring_index, mailbox[5],
+					le16_to_cpu(pkt->comp_status),
+					le16_to_cpu(pkt->scsi_status));
+			}
+		} else {
+			dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
+				"0x%x, mailbox[5] = 0x%x\n",
+				ha->rsp_ring_index, mailbox[5]);
+			dprintk(2, "qla1280_isr: response packet data\n");
+			qla1280_dump_buffer(2, (char *)pkt,
+					    RESPONSE_ENTRY_SIZE);
+		}
+
+		if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
+			dprintk(2, "status: Cmd %p, handle %i\n",
+				ha->outstanding_cmds[pkt->handle]->cmd,
+				pkt->handle);
+			if (pkt->entry_type == STATUS_TYPE)
+				qla1280_status_entry(ha, pkt, done_q);
+			else
+				qla1280_error_entry(ha, pkt, done_q);
+			/* Adjust ring index. */
+			ha->rsp_ring_index++;
+			if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
+				ha->rsp_ring_index = 0;
+				ha->response_ring_ptr =	ha->response_ring;
+			} else
+				ha->response_ring_ptr++;
+			WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
+		}
+	}
+	
+ out:
+	LEAVE("qla1280_isr");
+}
+
+/*
+ *  qla1280_rst_aen
+ *      Processes asynchronous reset.
+ *
+ * Input:
+ *      ha  = adapter block pointer.
+ */
+static void
+qla1280_rst_aen(struct scsi_qla_host *ha)
+{
+	uint8_t bus;
+
+	ENTER("qla1280_rst_aen");
+
+	if (ha->flags.online && !ha->flags.reset_active &&
+	    !ha->flags.abort_isp_active) {
+		ha->flags.reset_active = 1;
+		while (ha->flags.reset_marker) {
+			/* Issue marker command. */
+			ha->flags.reset_marker = 0;
+			for (bus = 0; bus < ha->ports &&
+				     !ha->flags.reset_marker; bus++) {
+				if (ha->bus_settings[bus].reset_marker) {
+					ha->bus_settings[bus].reset_marker = 0;
+					qla1280_marker(ha, bus, 0, 0,
+						       MK_SYNC_ALL);
+				}
+			}
+		}
+	}
+
+	LEAVE("qla1280_rst_aen");
+}
+
+
+/*
+ *  qla1280_status_entry
+ *      Processes received ISP status entry.
+ *
+ * Input:
+ *      ha           = adapter block pointer.
+ *      pkt          = entry pointer.
+ *      done_q       = done queue.
+ */
+static void
+qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
+		     struct list_head *done_q)
+{
+	int sense_sz;
+	struct srb *sp;
+	struct scsi_cmnd *cmd;
+	uint32_t handle = le32_to_cpu(pkt->handle);
+	uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
+	uint16_t comp_status = le16_to_cpu(pkt->comp_status);
+
+	ENTER("qla1280_status_entry");
+
+	/* Validate handle. */
+	if (handle < MAX_OUTSTANDING_COMMANDS)
+		sp = ha->outstanding_cmds[handle];
+	else
+		sp = NULL;
+
+	if (!sp) {
+		printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
+		goto out;
+	}
+
+	/* Free outstanding command slot. */
+	ha->outstanding_cmds[handle] = NULL;
+
+	cmd = sp->cmd;
+
+	if (comp_status || scsi_status) {
+		dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
+			"0x%x, handle = 0x%x\n", comp_status,
+			scsi_status, handle);
+	}
+
+	/* Target busy or queue full */
+	if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
+	    (scsi_status & 0xFF) == SAM_STAT_BUSY) {
+		CMD_RESULT(cmd) = scsi_status & 0xff;
+	} else {
+
+		/* Save ISP completion status */
+		CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
+
+		if (scsi_status & SAM_STAT_CHECK_CONDITION) {
+			if (comp_status != CS_ARS_FAILED) {
+				uint16_t req_sense_length =
+					le16_to_cpu(pkt->req_sense_length);
+				if (req_sense_length < CMD_SNSLEN(cmd))
+					sense_sz = req_sense_length;
+				else
+					/*
+					 * scsi_cmnd->sense_buffer is
+					 * 64 bytes, why only copy 63?
+					 * This looks wrong! /Jes
+					 */
+					sense_sz = CMD_SNSLEN(cmd) - 1;
+
+				memcpy(cmd->sense_buffer,
+				       &pkt->req_sense_data, sense_sz);
+			} else
+				sense_sz = 0;
+			memset(cmd->sense_buffer + sense_sz, 0,
+			       SCSI_SENSE_BUFFERSIZE - sense_sz);
+
+			dprintk(2, "qla1280_status_entry: Check "
+				"condition Sense data, b %i, t %i, "
+				"l %i\n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
+				SCSI_LUN_32(cmd));
+			if (sense_sz)
+				qla1280_dump_buffer(2,
+						    (char *)cmd->sense_buffer,
+						    sense_sz);
+		}
+	}
+
+	CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
+
+	/* Place command on done queue. */
+	list_add_tail(&sp->list, done_q);
+ out:
+	LEAVE("qla1280_status_entry");
+}
+
+/*
+ *  qla1280_error_entry
+ *      Processes error entry.
+ *
+ * Input:
+ *      ha           = adapter block pointer.
+ *      pkt          = entry pointer.
+ *      done_q       = done queue.
+ */
+static void
+qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
+		    struct list_head *done_q)
+{
+	struct srb *sp;
+	uint32_t handle = le32_to_cpu(pkt->handle);
+
+	ENTER("qla1280_error_entry");
+
+	if (pkt->entry_status & BIT_3)
+		dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
+	else if (pkt->entry_status & BIT_2)
+		dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
+	else if (pkt->entry_status & BIT_1)
+		dprintk(2, "qla1280_error_entry: FULL flag error\n");
+	else
+		dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
+
+	/* Validate handle. */
+	if (handle < MAX_OUTSTANDING_COMMANDS)
+		sp = ha->outstanding_cmds[handle];
+	else
+		sp = NULL;
+
+	if (sp) {
+		/* Free outstanding command slot. */
+		ha->outstanding_cmds[handle] = NULL;
+
+		/* Bad payload or header */
+		if (pkt->entry_status & (BIT_3 + BIT_2)) {
+			/* Bad payload or header, set error status. */
+			/* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
+			CMD_RESULT(sp->cmd) = DID_ERROR << 16;
+		} else if (pkt->entry_status & BIT_1) {	/* FULL flag */
+			CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
+		} else {
+			/* Set error status. */
+			CMD_RESULT(sp->cmd) = DID_ERROR << 16;
+		}
+
+		CMD_HANDLE(sp->cmd) = COMPLETED_HANDLE;
+
+		/* Place command on done queue. */
+		list_add_tail(&sp->list, done_q);
+	}
+#ifdef QLA_64BIT_PTR
+	else if (pkt->entry_type == COMMAND_A64_TYPE) {
+		printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
+	}
+#endif
+
+	LEAVE("qla1280_error_entry");
+}
+
+/*
+ *  qla1280_abort_isp
+ *      Resets ISP and aborts all outstanding commands.
+ *
+ * Input:
+ *      ha           = adapter block pointer.
+ *
+ * Returns:
+ *      0 = success
+ */
+static int
+qla1280_abort_isp(struct scsi_qla_host *ha)
+{
+	struct device_reg __iomem *reg = ha->iobase;
+	struct srb *sp;
+	int status = 0;
+	int cnt;
+	int bus;
+
+	ENTER("qla1280_abort_isp");
+
+	if (ha->flags.abort_isp_active || !ha->flags.online)
+		goto out;
+	
+	ha->flags.abort_isp_active = 1;
+
+	/* Disable ISP interrupts. */
+	qla1280_disable_intrs(ha);
+	WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
+	RD_REG_WORD(&reg->id_l);
+
+	printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
+	       ha->host_no);
+	/* Dequeue all commands in outstanding command list. */
+	for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+		struct scsi_cmnd *cmd;
+		sp = ha->outstanding_cmds[cnt];
+		if (sp) {
+			cmd = sp->cmd;
+			CMD_RESULT(cmd) = DID_RESET << 16;
+			CMD_HANDLE(cmd) = COMPLETED_HANDLE;
+			ha->outstanding_cmds[cnt] = NULL;
+			list_add_tail(&sp->list, &ha->done_q);
+		}
+	}
+
+	qla1280_done(ha);
+
+	status = qla1280_load_firmware(ha);
+	if (status)
+		goto out;
+
+	/* Setup adapter based on NVRAM parameters. */
+	qla1280_nvram_config (ha);
+
+	status = qla1280_init_rings(ha);
+	if (status)
+		goto out;
+		
+	/* Issue SCSI reset. */
+	for (bus = 0; bus < ha->ports; bus++)
+		qla1280_bus_reset(ha, bus);
+		
+	ha->flags.abort_isp_active = 0;
+ out:
+	if (status) {
+		printk(KERN_WARNING
+		       "qla1280: ISP error recovery failed, board disabled");
+		qla1280_reset_adapter(ha);
+		dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
+	}
+
+	LEAVE("qla1280_abort_isp");
+	return status;
+}
+
+
+/*
+ * qla1280_debounce_register
+ *      Debounce register.
+ *
+ * Input:
+ *      port = register address.
+ *
+ * Returns:
+ *      register value.
+ */
+static u16
+qla1280_debounce_register(volatile u16 __iomem * addr)
+{
+	volatile u16 ret;
+	volatile u16 ret2;
+
+	ret = RD_REG_WORD(addr);
+	ret2 = RD_REG_WORD(addr);
+
+	if (ret == ret2)
+		return ret;
+
+	do {
+		cpu_relax();
+		ret = RD_REG_WORD(addr);
+		ret2 = RD_REG_WORD(addr);
+	} while (ret != ret2);
+
+	return ret;
+}
+
+
+/************************************************************************
+ * qla1280_check_for_dead_scsi_bus                                      *
+ *                                                                      *
+ *    This routine checks for a dead SCSI bus                           *
+ ************************************************************************/
+#define SET_SXP_BANK            0x0100
+#define SCSI_PHASE_INVALID      0x87FF
+static int
+qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
+{
+	uint16_t config_reg, scsi_control;
+	struct device_reg __iomem *reg = ha->iobase;
+
+	if (ha->bus_settings[bus].scsi_bus_dead) {
+		WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
+		config_reg = RD_REG_WORD(&reg->cfg_1);
+		WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
+		scsi_control = RD_REG_WORD(&reg->scsiControlPins);
+		WRT_REG_WORD(&reg->cfg_1, config_reg);
+		WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
+
+		if (scsi_control == SCSI_PHASE_INVALID) {
+			ha->bus_settings[bus].scsi_bus_dead = 1;
+			return 1;	/* bus is dead */
+		} else {
+			ha->bus_settings[bus].scsi_bus_dead = 0;
+			ha->bus_settings[bus].failed_reset_count = 0;
+		}
+	}
+	return 0;		/* bus is not dead */
+}
+
+static void
+qla1280_get_target_parameters(struct scsi_qla_host *ha,
+			      struct scsi_device *device)
+{
+	uint16_t mb[MAILBOX_REGISTER_COUNT];
+	int bus, target, lun;
+
+	bus = device->channel;
+	target = device->id;
+	lun = device->lun;
+
+
+	mb[0] = MBC_GET_TARGET_PARAMETERS;
+	mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
+	mb[1] <<= 8;
+	qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
+				&mb[0]);
+
+	printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
+
+	if (mb[3] != 0) {
+		printk(KERN_CONT " Sync: period %d, offset %d",
+		       (mb[3] & 0xff), (mb[3] >> 8));
+		if (mb[2] & BIT_13)
+			printk(KERN_CONT ", Wide");
+		if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
+			printk(KERN_CONT ", DT");
+	} else
+		printk(KERN_CONT " Async");
+
+	if (device->simple_tags)
+		printk(KERN_CONT ", Tagged queuing: depth %d", device->queue_depth);
+	printk(KERN_CONT "\n");
+}
+
+
+#if DEBUG_QLA1280
+static void
+__qla1280_dump_buffer(char *b, int size)
+{
+	int cnt;
+	u8 c;
+
+	printk(KERN_DEBUG " 0   1   2   3   4   5   6   7   8   9   Ah  "
+	       "Bh  Ch  Dh  Eh  Fh\n");
+	printk(KERN_DEBUG "---------------------------------------------"
+	       "------------------\n");
+
+	for (cnt = 0; cnt < size;) {
+		c = *b++;
+
+		printk("0x%02x", c);
+		cnt++;
+		if (!(cnt % 16))
+			printk("\n");
+		else
+			printk(" ");
+	}
+	if (cnt % 16)
+		printk("\n");
+}
+
+/**************************************************************************
+ *   ql1280_print_scsi_cmd
+ *
+ **************************************************************************/
+static void
+__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
+{
+	struct scsi_qla_host *ha;
+	struct Scsi_Host *host = CMD_HOST(cmd);
+	struct srb *sp;
+	/* struct scatterlist *sg; */
+
+	int i;
+	ha = (struct scsi_qla_host *)host->hostdata;
+
+	sp = scsi_cmd_priv(cmd);
+	printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
+	printk("  chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
+	       SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
+	       CMD_CDBLEN(cmd));
+	printk(" CDB = ");
+	for (i = 0; i < cmd->cmd_len; i++) {
+		printk("0x%02x ", cmd->cmnd[i]);
+	}
+	printk("  seg_cnt =%d\n", scsi_sg_count(cmd));
+	printk("  request buffer=0x%p, request buffer len=0x%x\n",
+	       scsi_sglist(cmd), scsi_bufflen(cmd));
+	/* if (cmd->use_sg)
+	   {
+	   sg = (struct scatterlist *) cmd->request_buffer;
+	   printk("  SG buffer: \n");
+	   qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
+	   } */
+	printk("  tag=%d, transfersize=0x%x \n",
+	       scsi_cmd_to_rq(cmd)->tag, cmd->transfersize);
+	printk(" underflow size = 0x%x, direction=0x%x\n",
+	       cmd->underflow, cmd->sc_data_direction);
+}
+
+/**************************************************************************
+ *   ql1280_dump_device
+ *
+ **************************************************************************/
+static void
+ql1280_dump_device(struct scsi_qla_host *ha)
+{
+
+	struct scsi_cmnd *cp;
+	struct srb *sp;
+	int i;
+
+	printk(KERN_DEBUG "Outstanding Commands on controller:\n");
+
+	for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
+		if ((sp = ha->outstanding_cmds[i]) == NULL)
+			continue;
+		if ((cp = sp->cmd) == NULL)
+			continue;
+		qla1280_print_scsi_cmd(1, cp);
+	}
+}
+#endif
+
+
+enum tokens {
+	TOKEN_NVRAM,
+	TOKEN_SYNC,
+	TOKEN_WIDE,
+	TOKEN_PPR,
+	TOKEN_VERBOSE,
+	TOKEN_DEBUG,
+};
+
+struct setup_tokens {
+	char *token;
+	int val;
+};
+
+static struct setup_tokens setup_token[] __initdata = 
+{
+	{ "nvram", TOKEN_NVRAM },
+	{ "sync", TOKEN_SYNC },
+	{ "wide", TOKEN_WIDE },
+	{ "ppr", TOKEN_PPR },
+	{ "verbose", TOKEN_VERBOSE },
+	{ "debug", TOKEN_DEBUG },
+};
+
+
+/**************************************************************************
+ *   qla1280_setup
+ *
+ *   Handle boot parameters. This really needs to be changed so one
+ *   can specify per adapter parameters.
+ **************************************************************************/
+static int __init
+qla1280_setup(char *s)
+{
+	char *cp, *ptr;
+	unsigned long val;
+
+	cp = s;
+
+	while (cp && (ptr = strchr(cp, ':'))) {
+		ptr++;
+		if (!strcmp(ptr, "yes")) {
+			val = 0x10000;
+			ptr += 3;
+		} else if (!strcmp(ptr, "no")) {
+ 			val = 0;
+			ptr += 2;
+		} else
+			val = simple_strtoul(ptr, &ptr, 0);
+
+		switch (qla1280_get_token(cp)) {
+		case TOKEN_NVRAM:
+			if (!val)
+				driver_setup.no_nvram = 1;
+			break;
+		case TOKEN_SYNC:
+			if (!val)
+				driver_setup.no_sync = 1;
+			else if (val != 0x10000)
+				driver_setup.sync_mask = val;
+			break;
+		case TOKEN_WIDE:
+			if (!val)
+				driver_setup.no_wide = 1;
+			else if (val != 0x10000)
+				driver_setup.wide_mask = val;
+			break;
+		case TOKEN_PPR:
+			if (!val)
+				driver_setup.no_ppr = 1;
+			else if (val != 0x10000)
+				driver_setup.ppr_mask = val;
+			break;
+		case TOKEN_VERBOSE:
+			qla1280_verbose = val;
+			break;
+		default:
+			printk(KERN_INFO "qla1280: unknown boot option %s\n",
+			       cp);
+		}
+
+		cp = strchr(ptr, ';');
+		if (cp)
+			cp++;
+		else {
+			break;
+		}
+	}
+	return 1;
+}
+
+
+static int __init
+qla1280_get_token(char *str)
+{
+	char *sep;
+	long ret = -1;
+	int i;
+
+	sep = strchr(str, ':');
+
+	if (sep) {
+		for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
+			if (!strncmp(setup_token[i].token, str, (sep - str))) {
+				ret =  setup_token[i].val;
+				break;
+			}
+		}
+	}
+
+	return ret;
+}
+
+
+static struct scsi_host_template qla1280_driver_template = {
+	.module			= THIS_MODULE,
+	.proc_name		= "qla1280",
+	.name			= "Qlogic ISP 1280/12160",
+	.info			= qla1280_info,
+	.slave_configure	= qla1280_slave_configure,
+	.queuecommand		= qla1280_queuecommand,
+	.eh_abort_handler	= qla1280_eh_abort,
+	.eh_device_reset_handler= qla1280_eh_device_reset,
+	.eh_bus_reset_handler	= qla1280_eh_bus_reset,
+	.eh_host_reset_handler	= qla1280_eh_adapter_reset,
+	.bios_param		= qla1280_biosparam,
+	.can_queue		= MAX_OUTSTANDING_COMMANDS,
+	.this_id		= -1,
+	.sg_tablesize		= SG_ALL,
+	.cmd_size		= sizeof(struct srb),
+};
+
+
+static int
+qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	int devnum = id->driver_data;
+	struct qla_boards *bdp = &ql1280_board_tbl[devnum];
+	struct Scsi_Host *host;
+	struct scsi_qla_host *ha;
+	int error = -ENODEV;
+
+	/* Bypass all AMI SUBSYS VENDOR IDs */
+	if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
+		printk(KERN_INFO
+		       "qla1280: Skipping AMI SubSys Vendor ID Chip\n");
+		goto error;
+	}
+
+	printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
+	       bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
+	
+	if (pci_enable_device(pdev)) {
+		printk(KERN_WARNING
+		       "qla1280: Failed to enabled pci device, aborting.\n");
+		goto error;
+	}
+
+	pci_set_master(pdev);
+
+	error = -ENOMEM;
+	host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
+	if (!host) {
+		printk(KERN_WARNING
+		       "qla1280: Failed to register host, aborting.\n");
+		goto error_disable_device;
+	}
+
+	ha = (struct scsi_qla_host *)host->hostdata;
+	memset(ha, 0, sizeof(struct scsi_qla_host));
+
+	ha->pdev = pdev;
+	ha->devnum = devnum;	/* specifies microcode load address */
+
+#ifdef QLA_64BIT_PTR
+	if (dma_set_mask_and_coherent(&ha->pdev->dev, DMA_BIT_MASK(64))) {
+		if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
+			printk(KERN_WARNING "scsi(%li): Unable to set a "
+			       "suitable DMA mask - aborting\n", ha->host_no);
+			error = -ENODEV;
+			goto error_put_host;
+		}
+	} else
+		dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
+			ha->host_no);
+#else
+	if (dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32))) {
+		printk(KERN_WARNING "scsi(%li): Unable to set a "
+		       "suitable DMA mask - aborting\n", ha->host_no);
+		error = -ENODEV;
+		goto error_put_host;
+	}
+#endif
+
+	ha->request_ring = dma_alloc_coherent(&ha->pdev->dev,
+			((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
+			&ha->request_dma, GFP_KERNEL);
+	if (!ha->request_ring) {
+		printk(KERN_INFO "qla1280: Failed to get request memory\n");
+		goto error_put_host;
+	}
+
+	ha->response_ring = dma_alloc_coherent(&ha->pdev->dev,
+			((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
+			&ha->response_dma, GFP_KERNEL);
+	if (!ha->response_ring) {
+		printk(KERN_INFO "qla1280: Failed to get response memory\n");
+		goto error_free_request_ring;
+	}
+
+	ha->ports = bdp->numPorts;
+
+	ha->host = host;
+	ha->host_no = host->host_no;
+
+	host->irq = pdev->irq;
+	host->max_channel = bdp->numPorts - 1;
+	host->max_lun = MAX_LUNS - 1;
+	host->max_id = MAX_TARGETS;
+	host->max_sectors = 1024;
+	host->unique_id = host->host_no;
+
+	error = -ENODEV;
+
+#if MEMORY_MAPPED_IO
+	ha->mmpbase = pci_ioremap_bar(ha->pdev, 1);
+	if (!ha->mmpbase) {
+		printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
+		goto error_free_response_ring;
+	}
+
+	host->base = (unsigned long)ha->mmpbase;
+	ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
+#else
+	host->io_port = pci_resource_start(ha->pdev, 0);
+	if (!request_region(host->io_port, 0xff, "qla1280")) {
+		printk(KERN_INFO "qla1280: Failed to reserve i/o region "
+				 "0x%04lx-0x%04lx - already in use\n",
+		       host->io_port, host->io_port + 0xff);
+		goto error_free_response_ring;
+	}
+
+	ha->iobase = (struct device_reg *)host->io_port;
+#endif
+
+	INIT_LIST_HEAD(&ha->done_q);
+
+	/* Disable ISP interrupts. */
+	qla1280_disable_intrs(ha);
+
+	if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
+				"qla1280", ha)) {
+		printk("qla1280 : Failed to reserve interrupt %d already "
+		       "in use\n", pdev->irq);
+		goto error_release_region;
+	}
+
+	/* load the F/W, read paramaters, and init the H/W */
+	if (qla1280_initialize_adapter(ha)) {
+		printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
+		goto error_free_irq;
+	}
+
+	/* set our host ID  (need to do something about our two IDs) */
+	host->this_id = ha->bus_settings[0].id;
+
+	pci_set_drvdata(pdev, host);
+
+	error = scsi_add_host(host, &pdev->dev);
+	if (error)
+		goto error_disable_adapter;
+	scsi_scan_host(host);
+
+	return 0;
+
+ error_disable_adapter:
+	qla1280_disable_intrs(ha);
+ error_free_irq:
+	free_irq(pdev->irq, ha);
+ error_release_region:
+#if MEMORY_MAPPED_IO
+	iounmap(ha->mmpbase);
+#else
+	release_region(host->io_port, 0xff);
+#endif
+ error_free_response_ring:
+	dma_free_coherent(&ha->pdev->dev,
+			((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
+			ha->response_ring, ha->response_dma);
+ error_free_request_ring:
+	dma_free_coherent(&ha->pdev->dev,
+			((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
+			ha->request_ring, ha->request_dma);
+ error_put_host:
+	scsi_host_put(host);
+ error_disable_device:
+	pci_disable_device(pdev);
+ error:
+	return error;
+}
+
+
+static void
+qla1280_remove_one(struct pci_dev *pdev)
+{
+	struct Scsi_Host *host = pci_get_drvdata(pdev);
+	struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
+
+	scsi_remove_host(host);
+
+	qla1280_disable_intrs(ha);
+
+	free_irq(pdev->irq, ha);
+
+#if MEMORY_MAPPED_IO
+	iounmap(ha->mmpbase);
+#else
+	release_region(host->io_port, 0xff);
+#endif
+
+	dma_free_coherent(&ha->pdev->dev,
+			((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
+			ha->request_ring, ha->request_dma);
+	dma_free_coherent(&ha->pdev->dev,
+			((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
+			ha->response_ring, ha->response_dma);
+
+	pci_disable_device(pdev);
+
+	scsi_host_put(host);
+}
+
+static struct pci_driver qla1280_pci_driver = {
+	.name		= "qla1280",
+	.id_table	= qla1280_pci_tbl,
+	.probe		= qla1280_probe_one,
+	.remove		= qla1280_remove_one,
+};
+
+static int __init
+qla1280_init(void)
+{
+#ifdef MODULE
+	/*
+	 * If we are called as a module, the qla1280 pointer may not be null
+	 * and it would point to our bootup string, just like on the lilo
+	 * command line.  IF not NULL, then process this config string with
+	 * qla1280_setup
+	 *
+	 * Boot time Options
+	 * To add options at boot time add a line to your lilo.conf file like:
+	 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
+	 * which will result in the first four devices on the first two
+	 * controllers being set to a tagged queue depth of 32.
+	 */
+	if (qla1280)
+		qla1280_setup(qla1280);
+#endif
+
+	return pci_register_driver(&qla1280_pci_driver);
+}
+
+static void __exit
+qla1280_exit(void)
+{
+	int i;
+
+	pci_unregister_driver(&qla1280_pci_driver);
+	/* release any allocated firmware images */
+	for (i = 0; i < QL_NUM_FW_IMAGES; i++) {
+		release_firmware(qla1280_fw_tbl[i].fw);
+		qla1280_fw_tbl[i].fw = NULL;
+	}
+}
+
+module_init(qla1280_init);
+module_exit(qla1280_exit);
+
+MODULE_AUTHOR("Qlogic & Jes Sorensen");
+MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
+MODULE_LICENSE("GPL");
+MODULE_FIRMWARE("qlogic/1040.bin");
+MODULE_FIRMWARE("qlogic/1280.bin");
+MODULE_FIRMWARE("qlogic/12160.bin");
+MODULE_VERSION(QLA1280_VERSION);