Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits)
  [SCSI] usbstorage: use last_sector_bug flag universally
  [SCSI] libsas: abstract STP task status into a function
  [SCSI] ultrastor: clean up inline asm warnings
  [SCSI] aic7xxx: fix firmware build
  [SCSI] aacraid: fib context lock for management ioctls
  [SCSI] ch: remove forward declarations
  [SCSI] ch: fix device minor number management bug
  [SCSI] ch: handle class_device_create failure properly
  [SCSI] NCR5380: fix section mismatch
  [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices
  [SCSI] IB/iSER: add logical unit reset support
  [SCSI] don't use __GFP_DMA for sense buffers if not required
  [SCSI] use dynamically allocated sense buffer
  [SCSI] scsi.h: add macro for enclosure bit of inquiry data
  [SCSI] sd: add fix for devices with last sector access problems
  [SCSI] fix pcmcia compile problem
  [SCSI] aacraid: add Voodoo Lite class of cards.
  [SCSI] aacraid: add new driver features flags
  [SCSI] qla2xxx: Update version number to 8.02.00-k7.
  [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command.
  ...

Documentation/DocBook/Makefile

@@ -11,7 +11,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
 	    procfs-guide.xml writing_usb_driver.xml \
 	    kernel-api.xml filesystems.xml lsm.xml usb.xml \
 	    gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
-	    genericirq.xml s390-drivers.xml uio-howto.xml
+	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml
 
 ###
 # The build process is as follows (targets):

Documentation/DocBook/scsi.tmpl

@@ -0,0 +1,409 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+	"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
+
+<book id="scsimid">
+  <bookinfo>
+    <title>SCSI Interfaces Guide</title>
+
+    <authorgroup>
+      <author>
+        <firstname>James</firstname>
+        <surname>Bottomley</surname>
+        <affiliation>
+          <address>
+            <email>James.Bottomley@steeleye.com</email>
+          </address>
+        </affiliation>
+      </author>
+
+      <author>
+        <firstname>Rob</firstname>
+        <surname>Landley</surname>
+        <affiliation>
+          <address>
+            <email>rob@landley.net</email>
+          </address>
+        </affiliation>
+      </author>
+
+    </authorgroup>
+
+    <copyright>
+      <year>2007</year>
+      <holder>Linux Foundation</holder>
+    </copyright>
+
+    <legalnotice>
+      <para>
+        This documentation is free software; you can redistribute
+        it and/or modify it under the terms of the GNU General Public
+        License version 2.
+      </para>
+
+      <para>
+        This program is distributed in the hope that it will be
+        useful, but WITHOUT ANY WARRANTY; without even the implied
+        warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+        For more details see the file COPYING in the source
+        distribution of Linux.
+      </para>
+    </legalnotice>
+  </bookinfo>
+
+  <toc></toc>
+
+  <chapter id="intro">
+    <title>Introduction</title>
+    <sect1 id="protocol_vs_bus">
+      <title>Protocol vs bus</title>
+      <para>
+        Once upon a time, the Small Computer Systems Interface defined both
+        a parallel I/O bus and a data protocol to connect a wide variety of
+        peripherals (disk drives, tape drives, modems, printers, scanners,
+        optical drives, test equipment, and medical devices) to a host
+        computer.
+      </para>
+      <para>
+        Although the old parallel (fast/wide/ultra) SCSI bus has largely
+        fallen out of use, the SCSI command set is more widely used than ever
+        to communicate with devices over a number of different busses.
+      </para>
+      <para>
+        The <ulink url='http://www.t10.org/scsi-3.htm'>SCSI protocol</ulink>
+        is a big-endian peer-to-peer packet based protocol.  SCSI commands
+        are 6, 10, 12, or 16 bytes long, often followed by an associated data
+        payload.
+      </para>
+      <para>
+        SCSI commands can be transported over just about any kind of bus, and
+        are the default protocol for storage devices attached to USB, SATA,
+        SAS, Fibre Channel, FireWire, and ATAPI devices.  SCSI packets are
+        also commonly exchanged over Infiniband,
+        <ulink url='http://i2o.shadowconnect.com/faq.php'>I20</ulink>, TCP/IP
+        (<ulink url='http://en.wikipedia.org/wiki/ISCSI'>iSCSI</ulink>), even
+        <ulink url='http://cyberelk.net/tim/parport/parscsi.html'>Parallel
+        ports</ulink>.
+      </para>
+    </sect1>
+    <sect1 id="subsystem_design">
+      <title>Design of the Linux SCSI subsystem</title>
+      <para>
+        The SCSI subsystem uses a three layer design, with upper, mid, and low
+        layers.  Every operation involving the SCSI subsystem (such as reading
+        a sector from a disk) uses one driver at each of the 3 levels: one
+        upper layer driver, one lower layer driver, and the SCSI midlayer.
+      </para>
+      <para>
+        The SCSI upper layer provides the interface between userspace and the
+        kernel, in the form of block and char device nodes for I/O and
+        ioctl().  The SCSI lower layer contains drivers for specific hardware
+        devices.
+      </para>
+      <para>
+        In between is the SCSI mid-layer, analogous to a network routing
+        layer such as the IPv4 stack.  The SCSI mid-layer routes a packet
+        based data protocol between the upper layer's /dev nodes and the
+        corresponding devices in the lower layer.  It manages command queues,
+        provides error handling and power management functions, and responds
+        to ioctl() requests.
+      </para>
+    </sect1>
+  </chapter>
+
+  <chapter id="upper_layer">
+    <title>SCSI upper layer</title>
+    <para>
+      The upper layer supports the user-kernel interface by providing
+      device nodes.
+    </para>
+    <sect1 id="sd">
+      <title>sd (SCSI Disk)</title>
+      <para>sd (sd_mod.o)</para>
+<!-- !Idrivers/scsi/sd.c -->
+    </sect1>
+    <sect1 id="sr">
+      <title>sr (SCSI CD-ROM)</title>
+      <para>sr (sr_mod.o)</para>
+    </sect1>
+    <sect1 id="st">
+      <title>st (SCSI Tape)</title>
+      <para>st (st.o)</para>
+    </sect1>
+    <sect1 id="sg">
+      <title>sg (SCSI Generic)</title>
+      <para>sg (sg.o)</para>
+    </sect1>
+    <sect1 id="ch">
+      <title>ch (SCSI Media Changer)</title>
+      <para>ch (ch.c)</para>
+    </sect1>
+  </chapter>
+
+  <chapter id="mid_layer">
+    <title>SCSI mid layer</title>
+
+    <sect1 id="midlayer_implementation">
+      <title>SCSI midlayer implementation</title>
+      <sect2 id="scsi_device.h">
+        <title>include/scsi/scsi_device.h</title>
+        <para>
+        </para>
+!Iinclude/scsi/scsi_device.h
+      </sect2>
+
+      <sect2 id="scsi.c">
+        <title>drivers/scsi/scsi.c</title>
+        <para>Main file for the SCSI midlayer.</para>
+!Edrivers/scsi/scsi.c
+      </sect2>
+      <sect2 id="scsicam.c">
+        <title>drivers/scsi/scsicam.c</title>
+        <para>
+          <ulink url='http://www.t10.org/ftp/t10/drafts/cam/cam-r12b.pdf'>SCSI
+          Common Access Method</ulink> support functions, for use with
+          HDIO_GETGEO, etc.
+        </para>
+!Edrivers/scsi/scsicam.c
+      </sect2>
+      <sect2 id="scsi_error.c">
+        <title>drivers/scsi/scsi_error.c</title>
+        <para>Common SCSI error/timeout handling routines.</para>
+!Edrivers/scsi/scsi_error.c
+      </sect2>
+      <sect2 id="scsi_devinfo.c">
+        <title>drivers/scsi/scsi_devinfo.c</title>
+        <para>
+          Manage scsi_dev_info_list, which tracks blacklisted and whitelisted
+          devices.
+        </para>
+!Idrivers/scsi/scsi_devinfo.c
+      </sect2>
+      <sect2 id="scsi_ioctl.c">
+        <title>drivers/scsi/scsi_ioctl.c</title>
+        <para>
+          Handle ioctl() calls for SCSI devices.
+        </para>
+!Edrivers/scsi/scsi_ioctl.c
+      </sect2>
+      <sect2 id="scsi_lib.c">
+        <title>drivers/scsi/scsi_lib.c</title>
+        <para>
+          SCSI queuing library.
+        </para>
+!Edrivers/scsi/scsi_lib.c
+      </sect2>
+      <sect2 id="scsi_lib_dma.c">
+        <title>drivers/scsi/scsi_lib_dma.c</title>
+        <para>
+          SCSI library functions depending on DMA
+          (map and unmap scatter-gather lists).
+        </para>
+!Edrivers/scsi/scsi_lib_dma.c
+      </sect2>
+      <sect2 id="scsi_module.c">
+        <title>drivers/scsi/scsi_module.c</title>
+        <para>
+          The file drivers/scsi/scsi_module.c contains legacy support for
+          old-style host templates.  It should never be used by any new driver.
+        </para>
+      </sect2>
+      <sect2 id="scsi_proc.c">
+        <title>drivers/scsi/scsi_proc.c</title>
+        <para>
+          The functions in this file provide an interface between
+          the PROC file system and the SCSI device drivers
+          It is mainly used for debugging, statistics and to pass
+          information directly to the lowlevel driver.
+
+          I.E. plumbing to manage /proc/scsi/*
+        </para>
+!Idrivers/scsi/scsi_proc.c
+      </sect2>
+      <sect2 id="scsi_netlink.c">
+        <title>drivers/scsi/scsi_netlink.c</title>
+        <para>
+          Infrastructure to provide async events from transports to userspace
+          via netlink, using a single NETLINK_SCSITRANSPORT protocol for all
+          transports.
+
+          See <ulink url='http://marc.info/?l=linux-scsi&amp;m=115507374832500&amp;w=2'>the
+          original patch submission</ulink> for more details.
+        </para>
+!Idrivers/scsi/scsi_netlink.c
+      </sect2>
+      <sect2 id="scsi_scan.c">
+        <title>drivers/scsi/scsi_scan.c</title>
+        <para>
+          Scan a host to determine which (if any) devices are attached.
+
+          The general scanning/probing algorithm is as follows, exceptions are
+          made to it depending on device specific flags, compilation options,
+          and global variable (boot or module load time) settings.
+
+          A specific LUN is scanned via an INQUIRY command; if the LUN has a
+          device attached, a scsi_device is allocated and setup for it.
+
+          For every id of every channel on the given host, start by scanning
+          LUN 0.  Skip hosts that don't respond at all to a scan of LUN 0.
+          Otherwise, if LUN 0 has a device attached, allocate and setup a
+          scsi_device for it.  If target is SCSI-3 or up, issue a REPORT LUN,
+          and scan all of the LUNs returned by the REPORT LUN; else,
+          sequentially scan LUNs up until some maximum is reached, or a LUN is
+          seen that cannot have a device attached to it.
+        </para>
+!Idrivers/scsi/scsi_scan.c
+      </sect2>
+      <sect2 id="scsi_sysctl.c">
+        <title>drivers/scsi/scsi_sysctl.c</title>
+        <para>
+          Set up the sysctl entry: "/dev/scsi/logging_level"
+          (DEV_SCSI_LOGGING_LEVEL) which sets/returns scsi_logging_level.
+        </para>
+      </sect2>
+      <sect2 id="scsi_sysfs.c">
+        <title>drivers/scsi/scsi_sysfs.c</title>
+        <para>
+          SCSI sysfs interface routines.
+        </para>
+!Edrivers/scsi/scsi_sysfs.c
+      </sect2>
+      <sect2 id="hosts.c">
+        <title>drivers/scsi/hosts.c</title>
+        <para>
+          mid to lowlevel SCSI driver interface
+        </para>
+!Edrivers/scsi/hosts.c
+      </sect2>
+      <sect2 id="constants.c">
+        <title>drivers/scsi/constants.c</title>
+        <para>
+          mid to lowlevel SCSI driver interface
+        </para>
+!Edrivers/scsi/constants.c
+      </sect2>
+    </sect1>
+
+    <sect1 id="Transport_classes">
+      <title>Transport classes</title>
+      <para>
+        Transport classes are service libraries for drivers in the SCSI
+        lower layer, which expose transport attributes in sysfs.
+      </para>
+      <sect2 id="Fibre_Channel_transport">
+        <title>Fibre Channel transport</title>
+        <para>
+          The file drivers/scsi/scsi_transport_fc.c defines transport attributes
+          for Fibre Channel.
+        </para>
+!Edrivers/scsi/scsi_transport_fc.c
+      </sect2>
+      <sect2 id="iSCSI_transport">
+        <title>iSCSI transport class</title>
+        <para>
+          The file drivers/scsi/scsi_transport_iscsi.c defines transport
+          attributes for the iSCSI class, which sends SCSI packets over TCP/IP
+          connections.
+        </para>
+!Edrivers/scsi/scsi_transport_iscsi.c
+      </sect2>
+      <sect2 id="SAS_transport">
+        <title>Serial Attached SCSI (SAS) transport class</title>
+        <para>
+          The file drivers/scsi/scsi_transport_sas.c defines transport
+          attributes for Serial Attached SCSI, a variant of SATA aimed at
+          large high-end systems.
+        </para>
+        <para>
+          The SAS transport class contains common code to deal with SAS HBAs,
+          an aproximated representation of SAS topologies in the driver model,
+          and various sysfs attributes to expose these topologies and managment
+          interfaces to userspace.
+        </para>
+        <para>
+          In addition to the basic SCSI core objects this transport class
+          introduces two additional intermediate objects:  The SAS PHY
+          as represented by struct sas_phy defines an "outgoing" PHY on
+          a SAS HBA or Expander, and the SAS remote PHY represented by
+          struct sas_rphy defines an "incoming" PHY on a SAS Expander or
+          end device.  Note that this is purely a software concept, the
+          underlying hardware for a PHY and a remote PHY is the exactly
+          the same.
+        </para>
+        <para>
+          There is no concept of a SAS port in this code, users can see
+          what PHYs form a wide port based on the port_identifier attribute,
+          which is the same for all PHYs in a port.
+        </para>
+!Edrivers/scsi/scsi_transport_sas.c
+      </sect2>
+      <sect2 id="SATA_transport">
+        <title>SATA transport class</title>
+        <para>
+          The SATA transport is handled by libata, which has its own book of
+          documentation in this directory.
+        </para>
+      </sect2>
+      <sect2 id="SPI_transport">
+        <title>Parallel SCSI (SPI) transport class</title>
+        <para>
+          The file drivers/scsi/scsi_transport_spi.c defines transport
+          attributes for traditional (fast/wide/ultra) SCSI busses.
+        </para>
+!Edrivers/scsi/scsi_transport_spi.c
+      </sect2>
+      <sect2 id="SRP_transport">
+        <title>SCSI RDMA (SRP) transport class</title>
+        <para>
+          The file drivers/scsi/scsi_transport_srp.c defines transport
+          attributes for SCSI over Remote Direct Memory Access.
+        </para>
+!Edrivers/scsi/scsi_transport_srp.c
+      </sect2>
+    </sect1>
+
+  </chapter>
+
+  <chapter id="lower_layer">
+    <title>SCSI lower layer</title>
+    <sect1 id="hba_drivers">
+      <title>Host Bus Adapter transport types</title>
+      <para>
+        Many modern device controllers use the SCSI command set as a protocol to
+        communicate with their devices through many different types of physical
+        connections.
+      </para>
+      <para>
+        In SCSI language a bus capable of carrying SCSI commands is
+        called a "transport", and a controller connecting to such a bus is
+        called a "host bus adapter" (HBA).
+      </para>
+      <sect2 id="scsi_debug.c">
+        <title>Debug transport</title>
+        <para>
+          The file drivers/scsi/scsi_debug.c simulates a host adapter with a
+          variable number of disks (or disk like devices) attached, sharing a
+          common amount of RAM.  Does a lot of checking to make sure that we are
+          not getting blocks mixed up, and panics the kernel if anything out of
+          the ordinary is seen.
+        </para>
+        <para>
+          To be more realistic, the simulated devices have the transport
+          attributes of SAS disks.
+        </para>
+        <para>
+          For documentation see
+          <ulink url='http://www.torque.net/sg/sdebug26.html'>http://www.torque.net/sg/sdebug26.html</ulink>
+        </para>
+<!-- !Edrivers/scsi/scsi_debug.c -->
+      </sect2>
+      <sect2 id="todo">
+        <title>todo</title>
+        <para>Parallel (fast/wide/ultra) SCSI, USB, SATA,
+        SAS, Fibre Channel, FireWire, ATAPI devices, Infiniband,
+        I20, iSCSI, Parallel ports, netlink...
+        </para>
+      </sect2>
+    </sect1>
+  </chapter>
+</book>

Documentation/dontdiff

@@ -46,8 +46,6 @@
 .mailmap
 .mm
 53c700_d.h
-53c7xx_d.h
-53c7xx_u.h
 53c8xx_d.h*
 BitKeeper
 COPYING

Documentation/kernel-parameters.txt

@@ -1598,7 +1598,13 @@ and is between 256 and 4096 characters. It is defined in the file
 			Format: <vendor>:<model>:<flags>
 			(flags are integer value)
 
-	scsi_logging=	[SCSI]
+	scsi_logging_level=	[SCSI] a bit mask of logging levels
+			See drivers/scsi/scsi_logging.h for bits.  Also
+			settable via sysctl at dev.scsi.logging_level
+			(/proc/sys/dev/scsi/logging_level).
+			There is also a nice 'scsi_logging_level' script in the
+			S390-tools package, available for download at
+			http://www-128.ibm.com/developerworks/linux/linux390/s390-tools-1.5.4.html
 
 	scsi_mod.scan=	[SCSI] sync (default) scans SCSI busses as they are
 			discovered.  async scans them in kernel threads,

Documentation/m68k/kernel-options.txt

@@ -867,66 +867,6 @@ controller and should be autodetected by the driver. An example is the
 24 bit region which is specified by a mask of 0x00fffffe.
 
 
-5.5) 53c7xx=
-------------
-
-Syntax: 53c7xx=<sub-options...>
-
-These options affect the A4000T, A4091, WarpEngine, Blizzard 603e+,
-and GForce 040/060 SCSI controllers on the Amiga, as well as the
-builtin MVME 16x SCSI controller.
-
-The <sub-options> is a comma-separated list of the sub-options listed
-below.
-
-5.5.1) nosync
--------------
-
-Syntax: nosync:0
-
-  Disables sync negotiation for all devices.  Any value after the
-  colon is acceptable (and has the same effect).
-
-5.5.2) noasync
---------------
-
-[OBSOLETE, REMOVED]
-
-5.5.3) nodisconnect
--------------------
-
-Syntax: nodisconnect:0
-
-  Disables SCSI disconnects.  Any value after the colon is acceptable
-  (and has the same effect).
-
-5.5.4) validids
----------------
-
-Syntax: validids:0xNN
-
-  Specify which SCSI ids the driver should pay attention to.  This is
-  a bitmask (i.e. to only pay attention to ID#4, you'd use 0x10).
-  Default is 0x7f (devices 0-6).
-
-5.5.5) opthi
-5.5.6) optlo
-------------
-
-Syntax: opthi:M,optlo:N
-
-  Specify options for "hostdata->options".  The acceptable definitions
-  are listed in drivers/scsi/53c7xx.h; the 32 high bits should be in
-  opthi and the 32 low bits in optlo.  They must be specified in the
-  order opthi=M,optlo=N.
-
-5.5.7) next
------------
-
-  No argument. Used to separate blocks of keywords when there's more
-  than one 53c7xx host adapter in the system.
-
-
 /* Local Variables: */
 /* mode: text       */
 /* End:             */

Documentation/scsi/00-INDEX

@@ -64,8 +64,6 @@ lpfc.txt
 	- LPFC driver release notes
 megaraid.txt
 	- Common Management Module, shared code handling ioctls for LSI drivers
-ncr53c7xx.txt
-	- info on driver for NCR53c7xx based adapters
 ncr53c8xx.txt
 	- info on driver for NCR53c8xx based adapters
 osst.txt

Documentation/scsi/ChangeLog.megaraid_sas

@@ -1,3 +1,162 @@
+1 Release Date    : Thur. Nov. 07 16:30:43 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.16
+3 Older Version   : 00.00.03.15
+
+1. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from 10. FW may take
+	a max of 60 seconds to respond to the INIT cmd.
+
+1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.15
+3 Older Version   : 00.00.03.14
+
+1. Added module parameter "poll_mode_io" to support for "polling"
+	(reduced interrupt operation).  In this mode, IO completion
+	interrupts are delayed. At the end of initiating IOs, the
+	driver schedules for cmd completion if there are pending cmds
+	to be completed.  A timer-based interrupt has also been added
+	to prevent IO completion processing from being delayed
+	indefinitely in the case that no new IOs are initiated.
+
+1 Release Date    : Fri. Sep. 07 16:30:43 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.14
+3 Older Version   : 00.00.03.13
+
+1. Setting the max_sectors_per_req based on max SGL supported by the
+	FW. Prior versions calculated this value from controller info
+	(max_sectors_1, max_sectors_2). For certain controllers/FW,
+	this was resulting in a value greater than max SGL supported
+	by the FW. Issue was first reported by users running LUKS+XFS
+	with megaraid_sas.  Thanks to RB for providing the logs and
+	duplication steps that helped to get to the root cause of the
+	issue.  2. Increased MFI_POLL_TIMEOUT_SECS to 60 seconds from
+	10. FW may take a max of 60 seconds to respond to the INIT
+	cmd.
+
+1 Release Date    : Fri. June. 15 16:30:43 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.13
+3 Older Version   : 00.00.03.12
+
+1. Added the megasas_reset_timer routine to intercept cmd timeout and throttle io.
+
+On Fri, 2007-03-16 at 16:44 -0600, James Bottomley wrote:
+It looks like megaraid_sas at least needs this to throttle its commands
+> as they begin to time out.  The code keeps the existing transport
+> template use of eh_timed_out (and allows the transport to override the
+> host if they both have this callback).
+>
+> James
+
+1 Release Date    : Sat May. 12 16:30:43 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.12
+3 Older Version   : 00.00.03.11
+
+1.  When MegaSAS driver receives reset call from OS, driver waits in reset
+routine for max 3 minutes for all pending command completion. Now driver will
+call completion routine every 5 seconds from the reset routine instead of
+waiting for depending on cmd completion from isr path.
+
+1 Release Date    : Mon Apr. 30 10:25:52 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.11
+3 Older Version   : 00.00.03.09
+
+	1. Memory Manager for IOCTL removed for 2.6 kernels.
+	   pci_alloc_consistent replaced by dma_alloc_coherent. With this
+	   change there is no need of memory manager in the driver code
+
+	On Wed, 2007-02-07 at 13:30 -0800, Andrew Morton wrote:
+	> I suspect all this horror is due to stupidity in the DMA API.
+	>
+	> pci_alloc_consistent() just goes and assumes GFP_ATOMIC, whereas
+	> the caller (megasas_mgmt_fw_ioctl) would have been perfectly happy
+	> to use GFP_KERNEL.
+	>
+	> I bet this fixes it
+
+	It does, but the DMA API was expanded to cope with this exact case, so
+	use dma_alloc_coherent() directly in the megaraid code instead.  The dev
+	is just &pci_dev->dev.
+
+	James <James.Bottomley@SteelEye.com>
+
+	3. SYNCHRONIZE_CACHE is not supported by FW and thus blocked by driver.
+	4. Hibernation support added
+	5. Performing diskdump while running IO in RHEL 4 was failing. Fixed.
+
+1 Release Date    : Fri Feb. 09 14:36:28 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+
+2 Current Version : 00.00.03.09
+3 Older Version   : 00.00.03.08
+
+i.	Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
+
+	The driver now waits for 10 seconds to elapse instead of 5 (as in
+	previous release) to resume IO.
+
+1 Release Date    : Mon Feb. 05 11:35:24 PST 2007 -
+			(emaild-id:megaraidlinux@lsi.com)
+			Sumant Patro
+			Bo Yang
+2 Current Version : 00.00.03.08
+3 Older Version   : 00.00.03.07
+
+i.	Under heavy IO mid-layer prints "DRIVER_TIMEOUT" errors
+
+	Fix:	The driver is now throttling IO.
+	Checks added in megasas_queue_command to know if FW is able to
+	process commands within timeout period. If number of retries
+	is 2 or greater,the driver stops sending cmd to FW temporarily. IO is
+	resumed if pending cmd count reduces to 16 or 5 seconds has elapsed
+	from the time cmds were last sent to FW.
+
+ii.	FW enables WCE bit in Mode Sense cmd for drives that are configured
+	as WriteBack. The OS may send "SYNCHRONIZE_CACHE" cmd when Logical
+	Disks are exposed with WCE=1. User is advised to enable Write Back
+	mode only when the controller has battery backup. At this time
+	Synhronize cache is not supported by the FW. Driver will short-cycle
+	the cmd and return sucess without sending down to FW.
+
+1 Release Date    : Sun Jan. 14 11:21:32 PDT 2007 -
+		 Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
+2 Current Version : 00.00.03.07
+3 Older Version   : 00.00.03.06
+
+i.	bios_param entry added in scsi_host_template that returns disk geometry
+	information.
+
+1 Release Date    : Fri Oct 20 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>/Bo Yang
+2 Current Version : 00.00.03.06
+3 Older Version   : 00.00.03.05
+
+1. Added new memory management module to support the IOCTL memory allocation. For IOCTL we try to allocate from the memory pool created during driver initialization. If mem pool is empty then we allocate at run time.
+2. Added check in megasas_queue_command and dpc/isr routine to see if we have already declared adapter dead
+   (hw_crit_error=1). If hw_crit_error==1, now we donot accept any processing of pending cmds/accept any cmd from OS
 
 1 Release Date    : Mon Oct 02 11:21:32 PDT 2006 - Sumant Patro <Sumant.Patro@lsil.com>
 2 Current Version : 00.00.03.05

Documentation/scsi/aacraid.txt

@@ -56,6 +56,10 @@ Supported Cards/Chipsets
 	9005:0285:9005:02d1	Adaptec	5405 (Voodoo40)
 	9005:0285:15d9:02d2	SMC	AOC-USAS-S8i-LP
 	9005:0285:15d9:02d3	SMC	AOC-USAS-S8iR-LP
+	9005:0285:9005:02d4	Adaptec	2045 (Voodoo04 Lite)
+	9005:0285:9005:02d5	Adaptec	2405 (Voodoo40 Lite)
+	9005:0285:9005:02d6	Adaptec	2445 (Voodoo44 Lite)
+	9005:0285:9005:02d7	Adaptec	2805 (Voodoo80 Lite)
 	1011:0046:9005:0364	Adaptec	5400S (Mustang)
 	9005:0287:9005:0800	Adaptec	Themisto (Jupiter)
 	9005:0200:9005:0200	Adaptec	Themisto (Jupiter)

Documentation/scsi/hptiop.txt

@@ -1,9 +1,9 @@
-HIGHPOINT ROCKETRAID 3xxx RAID DRIVER (hptiop)
+HIGHPOINT ROCKETRAID 3xxx/4xxx ADAPTER DRIVER (hptiop)
 
 Controller Register Map
 -------------------------
 
-The controller IOP is accessed via PCI BAR0.
+For Intel IOP based adapters, the controller IOP is accessed via PCI BAR0:
 
      BAR0 offset    Register
             0x10    Inbound Message Register 0
@@ -18,6 +18,24 @@ The controller IOP is accessed via PCI BAR0.
             0x40    Inbound Queue Port
             0x44    Outbound Queue Port
 
+For Marvell IOP based adapters, the IOP is accessed via PCI BAR0 and BAR1:
+
+     BAR0 offset    Register
+         0x20400    Inbound Doorbell Register
+         0x20404    Inbound Interrupt Mask Register
+         0x20408    Outbound Doorbell Register
+         0x2040C    Outbound Interrupt Mask Register
+
+     BAR1 offset    Register
+             0x0    Inbound Queue Head Pointer
+             0x4    Inbound Queue Tail Pointer
+             0x8    Outbound Queue Head Pointer
+             0xC    Outbound Queue Tail Pointer
+            0x10    Inbound Message Register
+            0x14    Outbound Message Register
+     0x40-0x1040    Inbound Queue
+   0x1040-0x2040    Outbound Queue
+
 
 I/O Request Workflow
 ----------------------
@@ -73,15 +91,9 @@ The driver exposes following sysfs attributes:
      driver-version        R     driver version string
      firmware-version      R     firmware version string
 
-The driver registers char device "hptiop" to communicate with HighPoint RAID
-management software. Its ioctl routine acts as a general binary interface 
-between the IOP firmware and HighPoint RAID management software. New management
-functions can be implemented in application/firmware without modification
-in driver code.
-
 
 -----------------------------------------------------------------------------
-Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
+Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
 
   This file is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of

Documentation/scsi/ncr53c7xx.txt

@@ -1,40 +0,0 @@
-README for WarpEngine/A4000T/A4091 SCSI kernels.
-
-Use the following options to disable options in the SCSI driver.
-
-Using amiboot for example.....
-
-To disable Synchronous Negotiation....
-
-	amiboot -k kernel 53c7xx=nosync:0	
-
-To disable Disconnection....
-	
-	amiboot -k kernel 53c7xx=nodisconnect:0
-
-To disable certain SCSI devices...
-
-	amiboot -k kernel 53c7xx=validids:0x3F
-
-	this allows only device ID's 0,1,2,3,4 and 5 for linux to handle.
-	(this is a bitmasked field - i.e. each bit represents a SCSI ID)
-
-These commands work on a per controller basis and use the option 'next' to
-move to the next controller in the system.
-
-e.g.
-	amiboot -k kernel 53c7xx=nodisconnect:0,next,nosync:0
-
-	this uses No Disconnection on the first controller and Asynchronous
-	SCSI on the second controller.
-
-Known Issues:
-
-Two devices are known not to function with the default settings of using
-synchronous SCSI. These are the Archive Viper 150 Tape Drive and the 
-SyQuest SQ555 removeable hard drive. When using these devices on a controller
-use the 'nosync:0' option.
-
-Please try these options and post any problems/successes to me.
-
-Alan Hourihane <alanh@fairlite.demon.co.uk>

MAINTAINERS

@@ -3269,8 +3269,10 @@ W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
 
 S390 ZFCP DRIVER
-P:	Swen Schillig
-M:	swen@vnet.ibm.com
+P:	Christof Schmitt
+M:	christof.schmitt@de.ibm.com
+P:	Martin Peschke
+M:	mp3@de.ibm.com
 M:	linux390@de.ibm.com
 L:	linux-s390@vger.kernel.org
 W:	http://www.ibm.com/developerworks/linux/linux390/

block/bsg.c

@@ -445,6 +445,15 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr,
 	else
 		hdr->dout_resid = rq->data_len;
 
+	/*
+	 * If the request generated a negative error number, return it
+	 * (providing we aren't already returning an error); if it's
+	 * just a protocol response (i.e. non negative), that gets
+	 * processed above.
+	 */
+	if (!ret && rq->errors < 0)
+		ret = rq->errors;
+
 	blk_rq_unmap_user(bio);
 	blk_put_request(rq);
 
@@ -837,6 +846,7 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	struct bsg_device *bd = file->private_data;
 	int __user *uarg = (int __user *) arg;
+	int ret;
 
 	switch (cmd) {
 		/*
@@ -889,12 +899,12 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		if (rq->next_rq)
 			bidi_bio = rq->next_rq->bio;
 		blk_execute_rq(bd->queue, NULL, rq, 0);
-		blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);
+		ret = blk_complete_sgv4_hdr_rq(rq, &hdr, bio, bidi_bio);
 
 		if (copy_to_user(uarg, &hdr, sizeof(hdr)))
 			return -EFAULT;
 
-		return 0;
+		return ret;
 	}
 	/*
 	 * block device ioctls

block/ll_rw_blk.c

@@ -759,6 +759,30 @@ void blk_queue_dma_alignment(struct request_queue *q, int mask)
 
 EXPORT_SYMBOL(blk_queue_dma_alignment);
 
+/**
+ * blk_queue_update_dma_alignment - update dma length and memory alignment
+ * @q:     the request queue for the device
+ * @mask:  alignment mask
+ *
+ * description:
+ *    update required memory and length aligment for direct dma transactions.
+ *    If the requested alignment is larger than the current alignment, then
+ *    the current queue alignment is updated to the new value, otherwise it
+ *    is left alone.  The design of this is to allow multiple objects
+ *    (driver, device, transport etc) to set their respective
+ *    alignments without having them interfere.
+ *
+ **/
+void blk_queue_update_dma_alignment(struct request_queue *q, int mask)
+{
+	BUG_ON(mask > PAGE_SIZE);
+
+	if (mask > q->dma_alignment)
+		q->dma_alignment = mask;
+}
+
+EXPORT_SYMBOL(blk_queue_update_dma_alignment);
+
 /**
  * blk_queue_find_tag - find a request by its tag and queue
  * @q:	 The request queue for the device

drivers/ata/libata-scsi.c

@@ -839,7 +839,14 @@ static void ata_scsi_dev_config(struct scsi_device *sdev,
 	if (dev->class == ATA_DEV_ATAPI) {
 		struct request_queue *q = sdev->request_queue;
 		blk_queue_max_hw_segments(q, q->max_hw_segments - 1);
-	}
+
+		/* set the min alignment */
+		blk_queue_update_dma_alignment(sdev->request_queue,
+					       ATA_DMA_PAD_SZ - 1);
+	} else
+		/* ATA devices must be sector aligned */
+		blk_queue_update_dma_alignment(sdev->request_queue,
+					       ATA_SECT_SIZE - 1);
 
 	if (dev->class == ATA_DEV_ATA)
 		sdev->manage_start_stop = 1;
@@ -878,7 +885,7 @@ int ata_scsi_slave_config(struct scsi_device *sdev)
 	if (dev)
 		ata_scsi_dev_config(sdev, dev);
 
-	return 0;	/* scsi layer doesn't check return value, sigh */
+	return 0;
 }
 
 /**

drivers/base/attribute_container.c

@@ -320,9 +320,14 @@ attribute_container_add_attrs(struct class_device *classdev)
 	struct class_device_attribute **attrs =	cont->attrs;
 	int i, error;
 
-	if (!attrs)
+	BUG_ON(attrs && cont->grp);
+
+	if (!attrs && !cont->grp)
 		return 0;
 
+	if (cont->grp)
+		return sysfs_create_group(&classdev->kobj, cont->grp);
+
 	for (i = 0; attrs[i]; i++) {
 		error = class_device_create_file(classdev, attrs[i]);
 		if (error)
@@ -378,9 +383,14 @@ attribute_container_remove_attrs(struct class_device *classdev)
 	struct class_device_attribute **attrs =	cont->attrs;
 	int i;
 
-	if (!attrs)
+	if (!attrs && !cont->grp)
 		return;
 
+	if (cont->grp) {
+		sysfs_remove_group(&classdev->kobj, cont->grp);
+		return ;
+	}
+
 	for (i = 0; attrs[i]; i++)
 		class_device_remove_file(classdev, attrs[i]);
 }

drivers/firewire/fw-sbp2.c

@@ -1238,6 +1238,12 @@ static int sbp2_scsi_slave_alloc(struct scsi_device *sdev)
 
 	sdev->allow_restart = 1;
 
+	/*
+	 * Update the dma alignment (minimum alignment requirements for
+	 * start and end of DMA transfers) to be a sector
+	 */
+	blk_queue_update_dma_alignment(sdev->request_queue, 511);
+
 	if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36)
 		sdev->inquiry_len = 36;
 

drivers/ieee1394/sbp2.c

@@ -1963,6 +1963,12 @@ static int sbp2scsi_slave_alloc(struct scsi_device *sdev)
 	lu->sdev = sdev;
 	sdev->allow_restart = 1;
 
+	/*
+	 * Update the dma alignment (minimum alignment requirements for
+	 * start and end of DMA transfers) to be a sector
+	 */
+	blk_queue_update_dma_alignment(sdev->request_queue, 511);
+
 	if (lu->workarounds & SBP2_WORKAROUND_INQUIRY_36)
 		sdev->inquiry_len = 36;
 	return 0;

drivers/infiniband/ulp/iser/iscsi_iser.c

@@ -129,7 +129,7 @@ error:
  * iscsi_iser_cmd_init - Initialize iSCSI SCSI_READ or SCSI_WRITE commands
  *
  **/
-static void
+static int
 iscsi_iser_cmd_init(struct iscsi_cmd_task *ctask)
 {
 	struct iscsi_iser_conn     *iser_conn  = ctask->conn->dd_data;
@@ -138,6 +138,7 @@ iscsi_iser_cmd_init(struct iscsi_cmd_task *ctask)
 	iser_ctask->command_sent = 0;
 	iser_ctask->iser_conn    = iser_conn;
 	iser_ctask_rdma_init(iser_ctask);
+	return 0;
 }
 
 /**
@@ -220,12 +221,6 @@ iscsi_iser_ctask_xmit(struct iscsi_conn *conn,
 	debug_scsi("ctask deq [cid %d itt 0x%x]\n",
 		   conn->id, ctask->itt);
 
-	/*
-	 * serialize with TMF AbortTask
-	 */
-	if (ctask->mtask)
-		return error;
-
 	/* Send the cmd PDU */
 	if (!iser_ctask->command_sent) {
 		error = iser_send_command(conn, ctask);
@@ -406,6 +401,7 @@ iscsi_iser_session_create(struct iscsi_transport *iscsit,
 		ctask      = session->cmds[i];
 		iser_ctask = ctask->dd_data;
 		ctask->hdr = (struct iscsi_cmd *)&iser_ctask->desc.iscsi_header;
+		ctask->hdr_max = sizeof(iser_ctask->desc.iscsi_header);
 	}
 
 	for (i = 0; i < session->mgmtpool_max; i++) {
@@ -557,6 +553,7 @@ static struct scsi_host_template iscsi_iser_sht = {
 	.max_sectors		= 1024,
 	.cmd_per_lun            = ISCSI_MAX_CMD_PER_LUN,
 	.eh_abort_handler       = iscsi_eh_abort,
+	.eh_device_reset_handler= iscsi_eh_device_reset,
 	.eh_host_reset_handler	= iscsi_eh_host_reset,
 	.use_clustering         = DISABLE_CLUSTERING,
 	.proc_name              = "iscsi_iser",
@@ -583,7 +580,9 @@ static struct iscsi_transport iscsi_iser_transport = {
 				  ISCSI_PERSISTENT_ADDRESS |
 				  ISCSI_TARGET_NAME | ISCSI_TPGT |
 				  ISCSI_USERNAME | ISCSI_PASSWORD |
-				  ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN,
+				  ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
+				  ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
+				  ISCSI_PING_TMO | ISCSI_RECV_TMO,
 	.host_param_mask	= ISCSI_HOST_HWADDRESS |
 				  ISCSI_HOST_NETDEV_NAME |
 				  ISCSI_HOST_INITIATOR_NAME,

drivers/infiniband/ulp/iser/iser_initiator.c

@@ -621,9 +621,7 @@ void iser_snd_completion(struct iser_desc *tx_desc)
 			struct iscsi_session *session = conn->session;
 
 			spin_lock(&conn->session->lock);
-			list_del(&mtask->running);
-			__kfifo_put(session->mgmtpool.queue, (void*)&mtask,
-				    sizeof(void*));
+			iscsi_free_mgmt_task(conn, mtask);
 			spin_unlock(&session->lock);
 		}
 	}

drivers/message/fusion/mptbase.c

@@ -2056,7 +2056,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
 						ddlprintk(ioc, printk(MYIOC_s_DEBUG_FMT
 						    "mpt_upload:  alt_%s has cached_fw=%p \n",
 						    ioc->name, ioc->alt_ioc->name, ioc->alt_ioc->cached_fw));
-						ioc->alt_ioc->cached_fw = NULL;
+						ioc->cached_fw = NULL;
 					}
 				} else {
 					printk(MYIOC_s_WARN_FMT
@@ -2262,10 +2262,12 @@ mpt_adapter_disable(MPT_ADAPTER *ioc)
 	int ret;
 
 	if (ioc->cached_fw != NULL) {
-		ddlprintk(ioc, printk(MYIOC_s_INFO_FMT
-		    "mpt_adapter_disable: Pushing FW onto adapter\n", ioc->name));
-		if ((ret = mpt_downloadboot(ioc, (MpiFwHeader_t *)ioc->cached_fw, NO_SLEEP)) < 0) {
-			printk(MYIOC_s_WARN_FMT "firmware downloadboot failure (%d)!\n",
+		ddlprintk(ioc, printk(MYIOC_s_DEBUG_FMT "%s: Pushing FW onto "
+		    "adapter\n", __FUNCTION__, ioc->name));
+		if ((ret = mpt_downloadboot(ioc, (MpiFwHeader_t *)
+		    ioc->cached_fw, CAN_SLEEP)) < 0) {
+			printk(MYIOC_s_WARN_FMT
+			    ": firmware downloadboot failure (%d)!\n",
 			    ioc->name, ret);
 		}
 	}
@@ -2303,13 +2305,7 @@ mpt_adapter_disable(MPT_ADAPTER *ioc)
 		ioc->alloc_total -= sz;
 	}
 
-	if (ioc->cached_fw != NULL) {
-		sz = ioc->facts.FWImageSize;
-		pci_free_consistent(ioc->pcidev, sz,
-			ioc->cached_fw, ioc->cached_fw_dma);
-		ioc->cached_fw = NULL;
-		ioc->alloc_total -= sz;
-	}
+	mpt_free_fw_memory(ioc);
 
 	kfree(ioc->spi_data.nvram);
 	mpt_inactive_raid_list_free(ioc);
@@ -3047,44 +3043,62 @@ SendPortEnable(MPT_ADAPTER *ioc, int portnum, int sleepFlag)
  *
  *	If memory has already been allocated, the same (cached) value
  *	is returned.
- */
-void
+ *
+ *	Return 0 if successfull, or non-zero for failure
+ **/
+int
 mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size)
 {
-	if (ioc->cached_fw)
-		return;  /* use already allocated memory */
-	if (ioc->alt_ioc && ioc->alt_ioc->cached_fw) {
+	int rc;
+
+	if (ioc->cached_fw) {
+		rc = 0;  /* use already allocated memory */
+		goto out;
+	}
+	else if (ioc->alt_ioc && ioc->alt_ioc->cached_fw) {
 		ioc->cached_fw = ioc->alt_ioc->cached_fw;  /* use alt_ioc's memory */
 		ioc->cached_fw_dma = ioc->alt_ioc->cached_fw_dma;
-		ioc->alloc_total += size;
-		ioc->alt_ioc->alloc_total -= size;
+		rc = 0;
+		goto out;
+	}
+	ioc->cached_fw = pci_alloc_consistent(ioc->pcidev, size, &ioc->cached_fw_dma);
+	if (!ioc->cached_fw) {
+		printk(MYIOC_s_ERR_FMT "Unable to allocate memory for the cached firmware image!\n",
+		    ioc->name);
+		rc = -1;
 	} else {
-		if ( (ioc->cached_fw = pci_alloc_consistent(ioc->pcidev, size, &ioc->cached_fw_dma) ) )
-			ioc->alloc_total += size;
+		dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "FW Image  @ %p[%p], sz=%d[%x] bytes\n",
+		    ioc->name, ioc->cached_fw, (void *)(ulong)ioc->cached_fw_dma, size, size));
+		ioc->alloc_total += size;
+		rc = 0;
 	}
+ out:
+	return rc;
 }
+
 /**
  *	mpt_free_fw_memory - free firmware memory
  *	@ioc: Pointer to MPT_ADAPTER structure
  *
  *	If alt_img is NULL, delete from ioc structure.
  *	Else, delete a secondary image in same format.
- */
+ **/
 void
 mpt_free_fw_memory(MPT_ADAPTER *ioc)
 {
 	int sz;
 
+	if (!ioc->cached_fw)
+		return;
+
 	sz = ioc->facts.FWImageSize;
-	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "free_fw_memory: FW Image  @ %p[%p], sz=%d[%x] bytes\n",
-	    ioc->name, ioc->cached_fw, (void *)(ulong)ioc->cached_fw_dma, sz, sz));
+	dinitprintk(ioc, printk(MYIOC_s_DEBUG_FMT "free_fw_memory: FW Image  @ %p[%p], sz=%d[%x] bytes\n",
+		 ioc->name, ioc->cached_fw, (void *)(ulong)ioc->cached_fw_dma, sz, sz));
 	pci_free_consistent(ioc->pcidev, sz, ioc->cached_fw, ioc->cached_fw_dma);
+	ioc->alloc_total -= sz;
 	ioc->cached_fw = NULL;
-
-	return;
 }
 
-
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**
  *	mpt_do_upload - Construct and Send FWUpload request to MPT adapter port.
@@ -3116,17 +3130,12 @@ mpt_do_upload(MPT_ADAPTER *ioc, int sleepFlag)
 	if ((sz = ioc->facts.FWImageSize) == 0)
 		return 0;
 
-	mpt_alloc_fw_memory(ioc, sz);
+	if (mpt_alloc_fw_memory(ioc, ioc->facts.FWImageSize) != 0)
+		return -ENOMEM;
 
 	dinitprintk(ioc, printk(MYIOC_s_INFO_FMT ": FW Image  @ %p[%p], sz=%d[%x] bytes\n",
 	    ioc->name, ioc->cached_fw, (void *)(ulong)ioc->cached_fw_dma, sz, sz));
 
-	if (ioc->cached_fw == NULL) {
-		/* Major Failure.
-		 */
-		return -ENOMEM;
-	}
-
 	prequest = (sleepFlag == NO_SLEEP) ? kzalloc(ioc->req_sz, GFP_ATOMIC) :
 	    kzalloc(ioc->req_sz, GFP_KERNEL);
 	if (!prequest) {
@@ -3498,12 +3507,12 @@ KickStart(MPT_ADAPTER *ioc, int force, int sleepFlag)
 static int
 mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag)
 {
-	MPT_ADAPTER	*iocp=NULL;
 	u32 diag0val;
 	u32 doorbell;
 	int hard_reset_done = 0;
 	int count = 0;
 	u32 diag1val = 0;
+	MpiFwHeader_t *cached_fw;	/* Pointer to FW */
 
 	/* Clear any existing interrupts */
 	CHIPREG_WRITE32(&ioc->chip->IntStatus, 0);
@@ -3635,22 +3644,24 @@ mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag)
 		}
 
 		if (ioc->cached_fw)
-			iocp = ioc;
+			cached_fw = (MpiFwHeader_t *)ioc->cached_fw;
 		else if (ioc->alt_ioc && ioc->alt_ioc->cached_fw)
-			iocp = ioc->alt_ioc;
-		if (iocp) {
+			cached_fw = (MpiFwHeader_t *)ioc->alt_ioc->cached_fw;
+		else
+			cached_fw = NULL;
+		if (cached_fw) {
 			/* If the DownloadBoot operation fails, the
 			 * IOC will be left unusable. This is a fatal error
 			 * case.  _diag_reset will return < 0
 			 */
 			for (count = 0; count < 30; count ++) {
-				diag0val = CHIPREG_READ32(&iocp->chip->Diagnostic);
+				diag0val = CHIPREG_READ32(&ioc->chip->Diagnostic);
 				if (!(diag0val & MPI_DIAG_RESET_ADAPTER)) {
 					break;
 				}
 
 				dprintk(ioc, printk(MYIOC_s_DEBUG_FMT "cached_fw: diag0val=%x count=%d\n",
-					iocp->name, diag0val, count));
+					ioc->name, diag0val, count));
 				/* wait 1 sec */
 				if (sleepFlag == CAN_SLEEP) {
 					msleep (1000);
@@ -3658,8 +3669,7 @@ mpt_diag_reset(MPT_ADAPTER *ioc, int ignore, int sleepFlag)
 					mdelay (1000);
 				}
 			}
-			if ((count = mpt_downloadboot(ioc,
-				(MpiFwHeader_t *)iocp->cached_fw, sleepFlag)) < 0) {
+			if ((count = mpt_downloadboot(ioc, cached_fw, sleepFlag)) < 0) {
 				printk(MYIOC_s_WARN_FMT
 					"firmware downloadboot failure (%d)!\n", ioc->name, count);
 			}

drivers/message/fusion/mptbase.h

@@ -907,7 +907,7 @@ extern u32	 mpt_GetIocState(MPT_ADAPTER *ioc, int cooked);
 extern void	 mpt_print_ioc_summary(MPT_ADAPTER *ioc, char *buf, int *size, int len, int showlan);
 extern int	 mpt_HardResetHandler(MPT_ADAPTER *ioc, int sleepFlag);
 extern int	 mpt_config(MPT_ADAPTER *ioc, CONFIGPARMS *cfg);
-extern void	 mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size);
+extern int	 mpt_alloc_fw_memory(MPT_ADAPTER *ioc, int size);
 extern void	 mpt_free_fw_memory(MPT_ADAPTER *ioc);
 extern int	 mpt_findImVolumes(MPT_ADAPTER *ioc);
 extern int	 mptbase_sas_persist_operation(MPT_ADAPTER *ioc, u8 persist_opcode);

drivers/message/fusion/mptsas.c

@@ -1343,6 +1343,8 @@ static int mptsas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 		smprep = (SmpPassthroughReply_t *)ioc->sas_mgmt.reply;
 		memcpy(req->sense, smprep, sizeof(*smprep));
 		req->sense_len = sizeof(*smprep);
+		req->data_len = 0;
+		rsp->data_len -= smprep->ResponseDataLength;
 	} else {
 		printk(MYIOC_s_ERR_FMT "%s: smp passthru reply failed to be returned\n",
 		    ioc->name, __FUNCTION__);

drivers/message/fusion/mptscsih.c

@@ -111,7 +111,7 @@ int 		mptscsih_suspend(struct pci_dev *pdev, pm_message_t state);
 int 		mptscsih_resume(struct pci_dev *pdev);
 #endif
 
-#define SNS_LEN(scp)	sizeof((scp)->sense_buffer)
+#define SNS_LEN(scp)	SCSI_SENSE_BUFFERSIZE
 
 /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
 /**

drivers/message/i2o/i2o_scsi.c

@@ -370,7 +370,7 @@ static int i2o_scsi_reply(struct i2o_controller *c, u32 m,
 	 */
 	if (cmd->result)
 		memcpy(cmd->sense_buffer, &msg->body[3],
-		       min(sizeof(cmd->sense_buffer), (size_t) 40));
+		       min(SCSI_SENSE_BUFFERSIZE, 40));
 
 	/* only output error code if AdapterStatus is not HBA_SUCCESS */
 	if ((error >> 8) & 0xff)

drivers/s390/scsi/zfcp_aux.c

@@ -844,8 +844,6 @@ zfcp_unit_enqueue(struct zfcp_port *port, fcp_lun_t fcp_lun)
 	unit->sysfs_device.release = zfcp_sysfs_unit_release;
 	dev_set_drvdata(&unit->sysfs_device, unit);
 
-	init_waitqueue_head(&unit->scsi_scan_wq);
-
 	/* mark unit unusable as long as sysfs registration is not complete */
 	atomic_set_mask(ZFCP_STATUS_COMMON_REMOVE, &unit->status);
 

drivers/s390/scsi/zfcp_ccw.c

@@ -123,6 +123,9 @@ zfcp_ccw_remove(struct ccw_device *ccw_device)
 
 	list_for_each_entry_safe(port, p, &adapter->port_remove_lh, list) {
 		list_for_each_entry_safe(unit, u, &port->unit_remove_lh, list) {
+			if (atomic_test_mask(ZFCP_STATUS_UNIT_REGISTERED,
+				&unit->status))
+				scsi_remove_device(unit->device);
 			zfcp_unit_dequeue(unit);
 		}
 		zfcp_port_dequeue(port);

drivers/s390/scsi/zfcp_dbf.c

@@ -161,12 +161,6 @@ void zfcp_hba_dbf_event_fsf_response(struct zfcp_fsf_req *fsf_req)
 		   (fsf_req->fsf_command == FSF_QTCB_OPEN_LUN)) {
 		strncpy(rec->tag2, "open", ZFCP_DBF_TAG_SIZE);
 		level = 4;
-	} else if ((prot_status_qual->doubleword[0] != 0) ||
-		   (prot_status_qual->doubleword[1] != 0) ||
-		   (fsf_status_qual->doubleword[0] != 0) ||
-		   (fsf_status_qual->doubleword[1] != 0)) {
-		strncpy(rec->tag2, "qual", ZFCP_DBF_TAG_SIZE);
-		level = 3;
 	} else {
 		strncpy(rec->tag2, "norm", ZFCP_DBF_TAG_SIZE);
 		level = 6;

drivers/s390/scsi/zfcp_def.h

@@ -118,7 +118,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size)
 
 #define ZFCP_SBAL_TIMEOUT               (5*HZ)
 
-#define ZFCP_TYPE2_RECOVERY_TIME        (8*HZ)
+#define ZFCP_TYPE2_RECOVERY_TIME        8	/* seconds */
 
 /* queue polling (values in microseconds) */
 #define ZFCP_MAX_INPUT_THRESHOLD 	5000	/* FIXME: tune */
@@ -139,7 +139,7 @@ zfcp_address_to_sg(void *address, struct scatterlist *list, unsigned int size)
 #define ZFCP_STATUS_READS_RECOM		        FSF_STATUS_READS_RECOM
 
 /* Do 1st retry in 1 second, then double the timeout for each following retry */
-#define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP	100
+#define ZFCP_EXCHANGE_CONFIG_DATA_FIRST_SLEEP	1
 #define ZFCP_EXCHANGE_CONFIG_DATA_RETRIES	7
 
 /* timeout value for "default timer" for fsf requests */
@@ -983,10 +983,6 @@ struct zfcp_unit {
         struct scsi_device     *device;        /* scsi device struct pointer */
 	struct zfcp_erp_action erp_action;     /* pending error recovery */
         atomic_t               erp_counter;
-	wait_queue_head_t      scsi_scan_wq;   /* can be used to wait until
-						  all scsi_scan_target
-						  requests have been
-						  completed. */
 };
 
 /* FSF request */
@@ -1127,6 +1123,20 @@ zfcp_reqlist_find(struct zfcp_adapter *adapter, unsigned long req_id)
 	return NULL;
 }
 
+static inline struct zfcp_fsf_req *
+zfcp_reqlist_find_safe(struct zfcp_adapter *adapter, struct zfcp_fsf_req *req)
+{
+	struct zfcp_fsf_req *request;
+	unsigned int idx;
+
+	for (idx = 0; idx < REQUEST_LIST_SIZE; idx++) {
+		list_for_each_entry(request, &adapter->req_list[idx], list)
+			if (request == req)
+				return request;
+	}
+	return NULL;
+}
+
 /*
  *  functions needed for reference/usage counting
  */

drivers/s390/scsi/zfcp_erp.c

@@ -131,7 +131,7 @@ static void zfcp_close_qdio(struct zfcp_adapter *adapter)
 	debug_text_event(adapter->erp_dbf, 3, "qdio_down2a");
 	while (qdio_shutdown(adapter->ccw_device,
 			     QDIO_FLAG_CLEANUP_USING_CLEAR) == -EINPROGRESS)
-		msleep(1000);
+		ssleep(1);
 	debug_text_event(adapter->erp_dbf, 3, "qdio_down2b");
 
 	/* cleanup used outbound sbals */
@@ -456,7 +456,7 @@ zfcp_test_link(struct zfcp_port *port)
 
 	zfcp_port_get(port);
 	retval = zfcp_erp_adisc(port);
-	if (retval != 0) {
+	if (retval != 0 && retval != -EBUSY) {
 		zfcp_port_put(port);
 		ZFCP_LOG_NORMAL("reopen needed for port 0x%016Lx "
 				"on adapter %s\n ", port->wwpn,
@@ -846,7 +846,8 @@ zfcp_erp_strategy_check_fsfreq(struct zfcp_erp_action *erp_action)
 	if (erp_action->fsf_req) {
 		/* take lock to ensure that request is not deleted meanwhile */
 		spin_lock(&adapter->req_list_lock);
-		if (zfcp_reqlist_find(adapter, erp_action->fsf_req->req_id)) {
+		if (zfcp_reqlist_find_safe(adapter, erp_action->fsf_req) &&
+		    erp_action->fsf_req->erp_action == erp_action) {
 			/* fsf_req still exists */
 			debug_text_event(adapter->erp_dbf, 3, "a_ca_req");
 			debug_event(adapter->erp_dbf, 3, &erp_action->fsf_req,
@@ -1609,7 +1610,6 @@ static void zfcp_erp_scsi_scan(struct work_struct *work)
 	scsi_scan_target(&rport->dev, 0, rport->scsi_target_id,
 			 unit->scsi_lun, 0);
 	atomic_clear_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING, &unit->status);
-	wake_up(&unit->scsi_scan_wq);
 	zfcp_unit_put(unit);
 	kfree(p);
 }
@@ -1900,7 +1900,7 @@ zfcp_erp_adapter_strategy(struct zfcp_erp_action *erp_action)
 		ZFCP_LOG_INFO("Waiting to allow the adapter %s "
 			      "to recover itself\n",
 			      zfcp_get_busid_by_adapter(adapter));
-		msleep(jiffies_to_msecs(ZFCP_TYPE2_RECOVERY_TIME));
+		ssleep(ZFCP_TYPE2_RECOVERY_TIME);
 	}
 
 	return retval;
@@ -2080,7 +2080,7 @@ zfcp_erp_adapter_strategy_open_qdio(struct zfcp_erp_action *erp_action)
 	debug_text_event(adapter->erp_dbf, 3, "qdio_down1a");
 	while (qdio_shutdown(adapter->ccw_device,
 			     QDIO_FLAG_CLEANUP_USING_CLEAR) == -EINPROGRESS)
-		msleep(1000);
+		ssleep(1);
 	debug_text_event(adapter->erp_dbf, 3, "qdio_down1b");
 
  failed_qdio_establish:
@@ -2165,7 +2165,7 @@ zfcp_erp_adapter_strategy_open_fsf_xconfig(struct zfcp_erp_action *erp_action)
 		ZFCP_LOG_DEBUG("host connection still initialising... "
 			       "waiting and retrying...\n");
 		/* sleep a little bit before retry */
-		msleep(jiffies_to_msecs(sleep));
+		ssleep(sleep);
 		sleep *= 2;
 	}
 

drivers/s390/scsi/zfcp_fsf.c

@@ -1116,6 +1116,10 @@ zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
 		goto out;
 	}
 
+	if (unlikely(!atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
+			&unit->status)))
+		goto unit_blocked;
+
 	sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
         sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
         sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
@@ -1131,22 +1135,13 @@ zfcp_fsf_abort_fcp_command(unsigned long old_req_id,
 
 	zfcp_fsf_start_timer(fsf_req, ZFCP_SCSI_ER_TIMEOUT);
 	retval = zfcp_fsf_req_send(fsf_req);
-	if (retval) {
-		ZFCP_LOG_INFO("error: Failed to send abort command request "
-			      "on adapter %s, port 0x%016Lx, unit 0x%016Lx\n",
-			      zfcp_get_busid_by_adapter(adapter),
-			      unit->port->wwpn, unit->fcp_lun);
+	if (!retval)
+		goto out;
+
+ unit_blocked:
 		zfcp_fsf_req_free(fsf_req);
 		fsf_req = NULL;
-		goto out;
-	}
 
-	ZFCP_LOG_DEBUG("Abort FCP Command request initiated "
-		       "(adapter%s, port d_id=0x%06x, "
-		       "unit x%016Lx, old_req_id=0x%lx)\n",
-		       zfcp_get_busid_by_adapter(adapter),
-		       unit->port->d_id,
-		       unit->fcp_lun, old_req_id);
  out:
 	write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
 	return fsf_req;
@@ -1164,8 +1159,8 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req)
 {
 	int retval = -EINVAL;
 	struct zfcp_unit *unit;
-	unsigned char status_qual =
-	    new_fsf_req->qtcb->header.fsf_status_qual.word[0];
+	union fsf_status_qual *fsf_stat_qual =
+		&new_fsf_req->qtcb->header.fsf_status_qual;
 
 	if (new_fsf_req->status & ZFCP_STATUS_FSFREQ_ERROR) {
 		/* do not set ZFCP_STATUS_FSFREQ_ABORTSUCCEEDED */
@@ -1178,7 +1173,7 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req)
 	switch (new_fsf_req->qtcb->header.fsf_status) {
 
 	case FSF_PORT_HANDLE_NOT_VALID:
-		if (status_qual >> 4 != status_qual % 0xf) {
+		if (fsf_stat_qual->word[0] != fsf_stat_qual->word[1]) {
 			debug_text_event(new_fsf_req->adapter->erp_dbf, 3,
 					 "fsf_s_phand_nv0");
 			/*
@@ -1207,8 +1202,7 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req)
 		break;
 
 	case FSF_LUN_HANDLE_NOT_VALID:
-		if (status_qual >> 4 != status_qual % 0xf) {
-			/* 2 */
+		if (fsf_stat_qual->word[0] != fsf_stat_qual->word[1]) {
 			debug_text_event(new_fsf_req->adapter->erp_dbf, 3,
 					 "fsf_s_lhand_nv0");
 			/*
@@ -1674,6 +1668,12 @@ zfcp_fsf_send_els(struct zfcp_send_els *els)
                 goto failed_req;
 	}
 
+	if (unlikely(!atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
+			&els->port->status))) {
+		ret = -EBUSY;
+		goto port_blocked;
+	}
+
 	sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
         if (zfcp_use_one_sbal(els->req, els->req_count,
                               els->resp, els->resp_count)){
@@ -1755,6 +1755,7 @@ zfcp_fsf_send_els(struct zfcp_send_els *els)
 		       "0x%06x)\n", zfcp_get_busid_by_adapter(adapter), d_id);
 	goto out;
 
+ port_blocked:
  failed_send:
 	zfcp_fsf_req_free(fsf_req);
 
@@ -3592,6 +3593,12 @@ zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
 		goto failed_req_create;
 	}
 
+	if (unlikely(!atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
+			&unit->status))) {
+		retval = -EBUSY;
+		goto unit_blocked;
+	}
+
 	zfcp_unit_get(unit);
 	fsf_req->unit = unit;
 
@@ -3732,6 +3739,7 @@ zfcp_fsf_send_fcp_command_task(struct zfcp_adapter *adapter,
  send_failed:
  no_fit:
  failed_scsi_cmnd:
+ unit_blocked:
 	zfcp_unit_put(unit);
 	zfcp_fsf_req_free(fsf_req);
 	fsf_req = NULL;
@@ -3766,6 +3774,10 @@ zfcp_fsf_send_fcp_command_task_management(struct zfcp_adapter *adapter,
 		goto out;
 	}
 
+	if (unlikely(!atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED,
+			&unit->status)))
+		goto unit_blocked;
+
 	/*
 	 * Used to decide on proper handler in the return path,
 	 * could be either zfcp_fsf_send_fcp_command_task_handler or
@@ -3799,25 +3811,13 @@ zfcp_fsf_send_fcp_command_task_management(struct zfcp_adapter *adapter,
 
 	zfcp_fsf_start_timer(fsf_req, ZFCP_SCSI_ER_TIMEOUT);
 	retval = zfcp_fsf_req_send(fsf_req);
-	if (retval) {
-		ZFCP_LOG_INFO("error: Could not send an FCP-command (task "
-			      "management) on adapter %s, port 0x%016Lx for "
-			      "unit LUN 0x%016Lx\n",
-			      zfcp_get_busid_by_adapter(adapter),
-			      unit->port->wwpn,
-			      unit->fcp_lun);
-		zfcp_fsf_req_free(fsf_req);
-		fsf_req = NULL;
+	if (!retval)
 		goto out;
-	}
 
-	ZFCP_LOG_TRACE("Send FCP Command (task management function) initiated "
-		       "(adapter %s, port 0x%016Lx, unit 0x%016Lx, "
-		       "tm_flags=0x%x)\n",
-		       zfcp_get_busid_by_adapter(adapter),
-		       unit->port->wwpn,
-		       unit->fcp_lun,
-		       tm_flags);
+ unit_blocked:
+	zfcp_fsf_req_free(fsf_req);
+	fsf_req = NULL;
+
  out:
 	write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
 	return fsf_req;

drivers/s390/scsi/zfcp_scsi.c

@@ -51,7 +51,6 @@ struct zfcp_data zfcp_data = {
 		.queuecommand		= zfcp_scsi_queuecommand,
 		.eh_abort_handler	= zfcp_scsi_eh_abort_handler,
 		.eh_device_reset_handler = zfcp_scsi_eh_device_reset_handler,
-		.eh_bus_reset_handler	= zfcp_scsi_eh_host_reset_handler,
 		.eh_host_reset_handler	= zfcp_scsi_eh_host_reset_handler,
 		.can_queue		= 4096,
 		.this_id		= -1,
@@ -181,9 +180,6 @@ static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 
 	if (unit) {
 		zfcp_erp_wait(unit->port->adapter);
-		wait_event(unit->scsi_scan_wq,
-			   atomic_test_mask(ZFCP_STATUS_UNIT_SCSI_WORK_PENDING,
-					    &unit->status) == 0);
 		atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
 		sdpnt->hostdata = NULL;
 		unit->device = NULL;
@@ -262,8 +258,9 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
 		goto out;
 	}
 
-	if (unlikely(
-	     !atomic_test_mask(ZFCP_STATUS_COMMON_UNBLOCKED, &unit->status))) {
+	tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, use_timer,
+					     ZFCP_REQ_AUTO_CLEANUP);
+	if (unlikely(tmp == -EBUSY)) {
 		ZFCP_LOG_DEBUG("adapter %s not ready or unit 0x%016Lx "
 			       "on port 0x%016Lx in recovery\n",
 			       zfcp_get_busid_by_unit(unit),
@@ -272,9 +269,6 @@ zfcp_scsi_command_async(struct zfcp_adapter *adapter, struct zfcp_unit *unit,
 		goto out;
 	}
 
-	tmp = zfcp_fsf_send_fcp_command_task(adapter, unit, scpnt, use_timer,
-					     ZFCP_REQ_AUTO_CLEANUP);
-
 	if (unlikely(tmp < 0)) {
 		ZFCP_LOG_DEBUG("error: initiation of Send FCP Cmnd failed\n");
 		retval = SCSI_MLQUEUE_HOST_BUSY;
@@ -459,7 +453,9 @@ zfcp_scsi_eh_device_reset_handler(struct scsi_cmnd *scpnt)
 		retval = SUCCESS;
 		goto out;
 	}
-	ZFCP_LOG_NORMAL("resetting unit 0x%016Lx\n", unit->fcp_lun);
+	ZFCP_LOG_NORMAL("resetting unit 0x%016Lx on port 0x%016Lx, adapter %s\n",
+			unit->fcp_lun, unit->port->wwpn,
+			zfcp_get_busid_by_adapter(unit->port->adapter));
 
 	/*
 	 * If we do not know whether the unit supports 'logical unit reset'
@@ -542,7 +538,7 @@ zfcp_task_management_function(struct zfcp_unit *unit, u8 tm_flags,
 }
 
 /**
- * zfcp_scsi_eh_host_reset_handler - handler for host and bus reset
+ * zfcp_scsi_eh_host_reset_handler - handler for host reset
  */
 static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 {
@@ -552,8 +548,10 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
 	unit = (struct zfcp_unit*) scpnt->device->hostdata;
 	adapter = unit->port->adapter;
 
-	ZFCP_LOG_NORMAL("host/bus reset because of problems with "
-			"unit 0x%016Lx\n", unit->fcp_lun);
+	ZFCP_LOG_NORMAL("host reset because of problems with "
+		"unit 0x%016Lx on port 0x%016Lx, adapter %s\n",
+		unit->fcp_lun, unit->port->wwpn,
+		zfcp_get_busid_by_adapter(unit->port->adapter));
 
 	zfcp_erp_adapter_reopen(adapter, 0);
 	zfcp_erp_wait(adapter);

drivers/scsi/.gitignore

@@ -1,3 +1 @@
 53c700_d.h
-53c7xx_d.h
-53c7xx_u.h

drivers/scsi/3w-9xxx.c

@@ -2010,6 +2010,7 @@ static int __devinit twa_probe(struct pci_dev *pdev, const struct pci_device_id
 	}
 
 	pci_set_master(pdev);
+	pci_try_set_mwi(pdev);
 
 	if (pci_set_dma_mask(pdev, DMA_64BIT_MASK)
 	    || pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK))

drivers/scsi/53c700.c

@@ -608,7 +608,8 @@ NCR_700_scsi_done(struct NCR_700_Host_Parameters *hostdata,
 			scsi_print_sense("53c700", SCp);
 
 #endif
-			dma_unmap_single(hostdata->dev, slot->dma_handle, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+			dma_unmap_single(hostdata->dev, slot->dma_handle,
+					 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 			/* restore the old result if the request sense was
 			 * successful */
 			if (result == 0)
@@ -1010,7 +1011,7 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 				cmnd[1] = (SCp->device->lun & 0x7) << 5;
 				cmnd[2] = 0;
 				cmnd[3] = 0;
-				cmnd[4] = sizeof(SCp->sense_buffer);
+				cmnd[4] = SCSI_SENSE_BUFFERSIZE;
 				cmnd[5] = 0;
 				/* Here's a quiet hack: the
 				 * REQUEST_SENSE command is six bytes,
@@ -1024,14 +1025,14 @@ process_script_interrupt(__u32 dsps, __u32 dsp, struct scsi_cmnd *SCp,
 				SCp->cmd_len = 6; /* command length for
 						   * REQUEST_SENSE */
 				slot->pCmd = dma_map_single(hostdata->dev, cmnd, MAX_COMMAND_SIZE, DMA_TO_DEVICE);
-				slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
-				slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | sizeof(SCp->sense_buffer));
+				slot->dma_handle = dma_map_single(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
+				slot->SG[0].ins = bS_to_host(SCRIPT_MOVE_DATA_IN | SCSI_SENSE_BUFFERSIZE);
 				slot->SG[0].pAddr = bS_to_host(slot->dma_handle);
 				slot->SG[1].ins = bS_to_host(SCRIPT_RETURN);
 				slot->SG[1].pAddr = 0;
 				slot->resume_offset = hostdata->pScript;
 				dma_cache_sync(hostdata->dev, slot->SG, sizeof(slot->SG[0])*2, DMA_TO_DEVICE);
-				dma_cache_sync(hostdata->dev, SCp->sense_buffer, sizeof(SCp->sense_buffer), DMA_FROM_DEVICE);
+				dma_cache_sync(hostdata->dev, SCp->sense_buffer, SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 
 				/* queue the command for reissue */
 				slot->state = NCR_700_SLOT_QUEUED;

drivers/scsi/BusLogic.c

@@ -2947,7 +2947,7 @@ static int BusLogic_QueueCommand(struct scsi_cmnd *Command, void (*CompletionRou
 		}
 	}
 	memcpy(CCB->CDB, CDB, CDB_Length);
-	CCB->SenseDataLength = sizeof(Command->sense_buffer);
+	CCB->SenseDataLength = SCSI_SENSE_BUFFERSIZE;
 	CCB->SenseDataPointer = pci_map_single(HostAdapter->PCI_Device, Command->sense_buffer, CCB->SenseDataLength, PCI_DMA_FROMDEVICE);
 	CCB->Command = Command;
 	Command->scsi_done = CompletionRoutine;

drivers/scsi/Kconfig

@@ -341,7 +341,7 @@ config ISCSI_TCP
 	 The userspace component needed to initialize the driver, documentation,
 	 and sample configuration files can be found here:
 
-	 http://linux-iscsi.sf.net
+	 http://open-iscsi.org
 
 config SGIWD93_SCSI
 	tristate "SGI WD93C93 SCSI Driver"
@@ -573,10 +573,10 @@ config SCSI_ARCMSR_AER
 source "drivers/scsi/megaraid/Kconfig.megaraid"
 
 config SCSI_HPTIOP
-	tristate "HighPoint RocketRAID 3xxx Controller support"
+	tristate "HighPoint RocketRAID 3xxx/4xxx Controller support"
 	depends on SCSI && PCI
 	help
-	  This option enables support for HighPoint RocketRAID 3xxx
+	  This option enables support for HighPoint RocketRAID 3xxx/4xxx
 	  controllers.
 
 	  To compile this driver as a module, choose M here; the module
@@ -1288,17 +1288,6 @@ config SCSI_PAS16
 	  To compile this driver as a module, choose M here: the
 	  module will be called pas16.
 
-config SCSI_PSI240I
-	tristate "PSI240i support"
-	depends on ISA && SCSI
-	help
-	  This is support for the PSI240i EIDE interface card which acts as a
-	  SCSI host adapter.  Please read the SCSI-HOWTO, available from
-	  <http://www.tldp.org/docs.html#howto>.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called psi240i.
-
 config SCSI_QLOGIC_FAS
 	tristate "Qlogic FAS SCSI support"
 	depends on ISA && SCSI
@@ -1359,21 +1348,6 @@ config SCSI_LPFC
           This lpfc driver supports the Emulex LightPulse
           Family of Fibre Channel PCI host adapters.
 
-config SCSI_SEAGATE
-	tristate "Seagate ST-02 and Future Domain TMC-8xx SCSI support"
-	depends on X86 && ISA && SCSI
-	select CHECK_SIGNATURE
-	---help---
-	  These are 8-bit SCSI controllers; the ST-01 is also supported by
-	  this driver.  It is explained in section 3.9 of the SCSI-HOWTO,
-	  available from <http://www.tldp.org/docs.html#howto>.  If it
-	  doesn't work out of the box, you may have to change some macros at
-	  compiletime, which are described in <file:drivers/scsi/seagate.c>.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called seagate.
-
-# definitely looks not 64bit safe:
 config SCSI_SIM710
 	tristate "Simple 53c710 SCSI support (Compaq, NCR machines)"
 	depends on (EISA || MCA) && SCSI

drivers/scsi/Makefile

@@ -16,9 +16,8 @@
 
 CFLAGS_aha152x.o =   -DAHA152X_STAT -DAUTOCONF
 CFLAGS_gdth.o    = # -DDEBUG_GDTH=2 -D__SERIAL__ -D__COM2__ -DGDTH_STATISTICS
-CFLAGS_seagate.o =   -DARBITRATE -DPARITY -DSEAGATE_USE_ASM
 
-subdir-$(CONFIG_PCMCIA)		+= pcmcia
+obj-$(CONFIG_PCMCIA)		+= pcmcia/
 
 obj-$(CONFIG_SCSI)		+= scsi_mod.o
 obj-$(CONFIG_SCSI_TGT)		+= scsi_tgt.o
@@ -59,7 +58,6 @@ obj-$(CONFIG_MVME16x_SCSI)	+= 53c700.o	mvme16x_scsi.o
 obj-$(CONFIG_BVME6000_SCSI)	+= 53c700.o	bvme6000_scsi.o
 obj-$(CONFIG_SCSI_SIM710)	+= 53c700.o	sim710.o
 obj-$(CONFIG_SCSI_ADVANSYS)	+= advansys.o
-obj-$(CONFIG_SCSI_PSI240I)	+= psi240i.o
 obj-$(CONFIG_SCSI_BUSLOGIC)	+= BusLogic.o
 obj-$(CONFIG_SCSI_DPT_I2O)	+= dpt_i2o.o
 obj-$(CONFIG_SCSI_U14_34F)	+= u14-34f.o
@@ -90,7 +88,6 @@ obj-$(CONFIG_SCSI_QLA_FC)	+= qla2xxx/
 obj-$(CONFIG_SCSI_QLA_ISCSI)	+= qla4xxx/
 obj-$(CONFIG_SCSI_LPFC)		+= lpfc/
 obj-$(CONFIG_SCSI_PAS16)	+= pas16.o
-obj-$(CONFIG_SCSI_SEAGATE)	+= seagate.o
 obj-$(CONFIG_SCSI_T128)		+= t128.o
 obj-$(CONFIG_SCSI_DMX3191D)	+= dmx3191d.o
 obj-$(CONFIG_SCSI_DTC3280)	+= dtc.o

drivers/scsi/NCR5380.c

@@ -295,16 +295,16 @@ static __inline__ void initialize_SCp(Scsi_Cmnd * cmd)
 	 * various queues are valid.
 	 */
 
-	if (cmd->use_sg) {
-		cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
-		cmd->SCp.buffers_residual = cmd->use_sg - 1;
+	if (scsi_bufflen(cmd)) {
+		cmd->SCp.buffer = scsi_sglist(cmd);
+		cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 	} else {
 		cmd->SCp.buffer = NULL;
 		cmd->SCp.buffers_residual = 0;
-		cmd->SCp.ptr = (char *) cmd->request_buffer;
-		cmd->SCp.this_residual = cmd->request_bufflen;
+		cmd->SCp.ptr = NULL;
+		cmd->SCp.this_residual = 0;
 	}
 }
 
@@ -932,7 +932,7 @@ static int __devinit NCR5380_init(struct Scsi_Host *instance, int flags)
  *	@instance: adapter to remove
  */
 
-static void __devexit NCR5380_exit(struct Scsi_Host *instance)
+static void NCR5380_exit(struct Scsi_Host *instance)
 {
 	struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
 
@@ -975,14 +975,14 @@ static int NCR5380_queue_command(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
 		case WRITE_6:
 		case WRITE_10:
 			hostdata->time_write[cmd->device->id] -= (jiffies - hostdata->timebase);
-			hostdata->bytes_write[cmd->device->id] += cmd->request_bufflen;
+			hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);
 			hostdata->pendingw++;
 			break;
 		case READ:
 		case READ_6:
 		case READ_10:
 			hostdata->time_read[cmd->device->id] -= (jiffies - hostdata->timebase);
-			hostdata->bytes_read[cmd->device->id] += cmd->request_bufflen;
+			hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);
 			hostdata->pendingr++;
 			break;
 	}
@@ -1157,16 +1157,17 @@ static void NCR5380_main(struct work_struct *work)
  *	Locks: takes the needed instance locks
  */
 
-static irqreturn_t NCR5380_intr(int irq, void *dev_id) 
+static irqreturn_t NCR5380_intr(int dummy, void *dev_id)
 {
 	NCR5380_local_declare();
-	struct Scsi_Host *instance = (struct Scsi_Host *)dev_id;
+	struct Scsi_Host *instance = dev_id;
 	struct NCR5380_hostdata *hostdata = (struct NCR5380_hostdata *) instance->hostdata;
 	int done;
 	unsigned char basr;
 	unsigned long flags;
 
-	dprintk(NDEBUG_INTR, ("scsi : NCR5380 irq %d triggered\n", irq));
+	dprintk(NDEBUG_INTR, ("scsi : NCR5380 irq %d triggered\n",
+		instance->irq));
 
 	do {
 		done = 1;

drivers/scsi/a2091.c

@@ -73,18 +73,9 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 	}
 
 	if (!dir_in) {
-	    /* copy to bounce buffer for a write */
-	    if (cmd->use_sg)
-#if 0
-		panic ("scsi%ddma: incomplete s/g support",
-		       instance->host_no);
-#else
+		/* copy to bounce buffer for a write */
 		memcpy (HDATA(instance)->dma_bounce_buffer,
 			cmd->SCp.ptr, cmd->SCp.this_residual);
-#endif
-	    else
-		memcpy (HDATA(instance)->dma_bounce_buffer,
-			cmd->request_buffer, cmd->request_bufflen);
 	}
     }
 
@@ -144,30 +135,13 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 
     /* copy from a bounce buffer, if necessary */
     if (status && HDATA(instance)->dma_bounce_buffer) {
-	if (SCpnt && SCpnt->use_sg) {
-#if 0
-	    panic ("scsi%d: incomplete s/g support",
-		   instance->host_no);
-#else
-	    if( HDATA(instance)->dma_dir )
+	if( HDATA(instance)->dma_dir )
 		memcpy (SCpnt->SCp.ptr, 
 			HDATA(instance)->dma_bounce_buffer,
 			SCpnt->SCp.this_residual);
-	    kfree (HDATA(instance)->dma_bounce_buffer);
-	    HDATA(instance)->dma_bounce_buffer = NULL;
-	    HDATA(instance)->dma_bounce_len = 0;
-	    
-#endif
-	} else {
-	    if (HDATA(instance)->dma_dir && SCpnt)
-		memcpy (SCpnt->request_buffer,
-			HDATA(instance)->dma_bounce_buffer,
-			SCpnt->request_bufflen);
-
-	    kfree (HDATA(instance)->dma_bounce_buffer);
-	    HDATA(instance)->dma_bounce_buffer = NULL;
-	    HDATA(instance)->dma_bounce_len = 0;
-	}
+	kfree (HDATA(instance)->dma_bounce_buffer);
+	HDATA(instance)->dma_bounce_buffer = NULL;
+	HDATA(instance)->dma_bounce_len = 0;
     }
 }
 

drivers/scsi/a3000.c

@@ -70,12 +70,8 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 
 	if (!dir_in) {
 	    /* copy to bounce buffer for a write */
-	    if (cmd->use_sg) {
-		memcpy (HDATA(a3000_host)->dma_bounce_buffer,
-			cmd->SCp.ptr, cmd->SCp.this_residual);
-	    } else
-		memcpy (HDATA(a3000_host)->dma_bounce_buffer,
-			cmd->request_buffer, cmd->request_bufflen);
+	    memcpy (HDATA(a3000_host)->dma_bounce_buffer,
+		cmd->SCp.ptr, cmd->SCp.this_residual);
 	}
 
 	addr = virt_to_bus(HDATA(a3000_host)->dma_bounce_buffer);
@@ -146,7 +142,7 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 
     /* copy from a bounce buffer, if necessary */
     if (status && HDATA(instance)->dma_bounce_buffer) {
-	if (SCpnt && SCpnt->use_sg) {
+	if (SCpnt) {
 	    if (HDATA(instance)->dma_dir && SCpnt)
 		memcpy (SCpnt->SCp.ptr,
 			HDATA(instance)->dma_bounce_buffer,
@@ -155,11 +151,6 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 	    HDATA(instance)->dma_bounce_buffer = NULL;
 	    HDATA(instance)->dma_bounce_len = 0;
 	} else {
-	    if (HDATA(instance)->dma_dir && SCpnt)
-		memcpy (SCpnt->request_buffer,
-			HDATA(instance)->dma_bounce_buffer,
-			SCpnt->request_bufflen);
-
 	    kfree (HDATA(instance)->dma_bounce_buffer);
 	    HDATA(instance)->dma_bounce_buffer = NULL;
 	    HDATA(instance)->dma_bounce_len = 0;

drivers/scsi/aacraid/aachba.c

@@ -31,9 +31,9 @@
 #include <linux/slab.h>
 #include <linux/completion.h>
 #include <linux/blkdev.h>
-#include <linux/dma-mapping.h>
 #include <asm/semaphore.h>
 #include <asm/uaccess.h>
+#include <linux/highmem.h> /* For flush_kernel_dcache_page */
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -56,54 +56,54 @@
 /*
  *	Sense codes
  */
- 
-#define SENCODE_NO_SENSE                        0x00
-#define SENCODE_END_OF_DATA                     0x00
-#define SENCODE_BECOMING_READY                  0x04
-#define SENCODE_INIT_CMD_REQUIRED               0x04
-#define SENCODE_PARAM_LIST_LENGTH_ERROR         0x1A
-#define SENCODE_INVALID_COMMAND                 0x20
-#define SENCODE_LBA_OUT_OF_RANGE                0x21
-#define SENCODE_INVALID_CDB_FIELD               0x24
-#define SENCODE_LUN_NOT_SUPPORTED               0x25
-#define SENCODE_INVALID_PARAM_FIELD             0x26
-#define SENCODE_PARAM_NOT_SUPPORTED             0x26
-#define SENCODE_PARAM_VALUE_INVALID             0x26
-#define SENCODE_RESET_OCCURRED                  0x29
-#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET     0x3E
-#define SENCODE_INQUIRY_DATA_CHANGED            0x3F
-#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED     0x39
-#define SENCODE_DIAGNOSTIC_FAILURE              0x40
-#define SENCODE_INTERNAL_TARGET_FAILURE         0x44
-#define SENCODE_INVALID_MESSAGE_ERROR           0x49
-#define SENCODE_LUN_FAILED_SELF_CONFIG          0x4c
-#define SENCODE_OVERLAPPED_COMMAND              0x4E
+
+#define SENCODE_NO_SENSE			0x00
+#define SENCODE_END_OF_DATA			0x00
+#define SENCODE_BECOMING_READY			0x04
+#define SENCODE_INIT_CMD_REQUIRED		0x04
+#define SENCODE_PARAM_LIST_LENGTH_ERROR		0x1A
+#define SENCODE_INVALID_COMMAND			0x20
+#define SENCODE_LBA_OUT_OF_RANGE		0x21
+#define SENCODE_INVALID_CDB_FIELD		0x24
+#define SENCODE_LUN_NOT_SUPPORTED		0x25
+#define SENCODE_INVALID_PARAM_FIELD		0x26
+#define SENCODE_PARAM_NOT_SUPPORTED		0x26
+#define SENCODE_PARAM_VALUE_INVALID		0x26
+#define SENCODE_RESET_OCCURRED			0x29
+#define SENCODE_LUN_NOT_SELF_CONFIGURED_YET	0x3E
+#define SENCODE_INQUIRY_DATA_CHANGED		0x3F
+#define SENCODE_SAVING_PARAMS_NOT_SUPPORTED	0x39
+#define SENCODE_DIAGNOSTIC_FAILURE		0x40
+#define SENCODE_INTERNAL_TARGET_FAILURE		0x44
+#define SENCODE_INVALID_MESSAGE_ERROR		0x49
+#define SENCODE_LUN_FAILED_SELF_CONFIG		0x4c
+#define SENCODE_OVERLAPPED_COMMAND		0x4E
 
 /*
  *	Additional sense codes
  */
- 
-#define ASENCODE_NO_SENSE                       0x00
-#define ASENCODE_END_OF_DATA                    0x05
-#define ASENCODE_BECOMING_READY                 0x01
-#define ASENCODE_INIT_CMD_REQUIRED              0x02
-#define ASENCODE_PARAM_LIST_LENGTH_ERROR        0x00
-#define ASENCODE_INVALID_COMMAND                0x00
-#define ASENCODE_LBA_OUT_OF_RANGE               0x00
-#define ASENCODE_INVALID_CDB_FIELD              0x00
-#define ASENCODE_LUN_NOT_SUPPORTED              0x00
-#define ASENCODE_INVALID_PARAM_FIELD            0x00
-#define ASENCODE_PARAM_NOT_SUPPORTED            0x01
-#define ASENCODE_PARAM_VALUE_INVALID            0x02
-#define ASENCODE_RESET_OCCURRED                 0x00
-#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET    0x00
-#define ASENCODE_INQUIRY_DATA_CHANGED           0x03
-#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED    0x00
-#define ASENCODE_DIAGNOSTIC_FAILURE             0x80
-#define ASENCODE_INTERNAL_TARGET_FAILURE        0x00
-#define ASENCODE_INVALID_MESSAGE_ERROR          0x00
-#define ASENCODE_LUN_FAILED_SELF_CONFIG         0x00
-#define ASENCODE_OVERLAPPED_COMMAND             0x00
+
+#define ASENCODE_NO_SENSE			0x00
+#define ASENCODE_END_OF_DATA			0x05
+#define ASENCODE_BECOMING_READY			0x01
+#define ASENCODE_INIT_CMD_REQUIRED		0x02
+#define ASENCODE_PARAM_LIST_LENGTH_ERROR	0x00
+#define ASENCODE_INVALID_COMMAND		0x00
+#define ASENCODE_LBA_OUT_OF_RANGE		0x00
+#define ASENCODE_INVALID_CDB_FIELD		0x00
+#define ASENCODE_LUN_NOT_SUPPORTED		0x00
+#define ASENCODE_INVALID_PARAM_FIELD		0x00
+#define ASENCODE_PARAM_NOT_SUPPORTED		0x01
+#define ASENCODE_PARAM_VALUE_INVALID		0x02
+#define ASENCODE_RESET_OCCURRED			0x00
+#define ASENCODE_LUN_NOT_SELF_CONFIGURED_YET	0x00
+#define ASENCODE_INQUIRY_DATA_CHANGED		0x03
+#define ASENCODE_SAVING_PARAMS_NOT_SUPPORTED	0x00
+#define ASENCODE_DIAGNOSTIC_FAILURE		0x80
+#define ASENCODE_INTERNAL_TARGET_FAILURE	0x00
+#define ASENCODE_INVALID_MESSAGE_ERROR		0x00
+#define ASENCODE_LUN_FAILED_SELF_CONFIG		0x00
+#define ASENCODE_OVERLAPPED_COMMAND		0x00
 
 #define BYTE0(x) (unsigned char)(x)
 #define BYTE1(x) (unsigned char)((x) >> 8)
@@ -115,8 +115,8 @@
  *----------------------------------------------------------------------------*/
 /* SCSI inquiry data */
 struct inquiry_data {
-	u8 inqd_pdt;	/* Peripheral qualifier | Peripheral Device Type  */
-	u8 inqd_dtq;	/* RMB | Device Type Qualifier  */
+	u8 inqd_pdt;	/* Peripheral qualifier | Peripheral Device Type */
+	u8 inqd_dtq;	/* RMB | Device Type Qualifier */
 	u8 inqd_ver;	/* ISO version | ECMA version | ANSI-approved version */
 	u8 inqd_rdf;	/* AENC | TrmIOP | Response data format */
 	u8 inqd_len;	/* Additional length (n-4) */
@@ -130,7 +130,7 @@ struct inquiry_data {
 /*
  *              M O D U L E   G L O B A L S
  */
- 
+
 static unsigned long aac_build_sg(struct scsi_cmnd* scsicmd, struct sgmap* sgmap);
 static unsigned long aac_build_sg64(struct scsi_cmnd* scsicmd, struct sgmap64* psg);
 static unsigned long aac_build_sgraw(struct scsi_cmnd* scsicmd, struct sgmapraw* psg);
@@ -141,9 +141,10 @@ static char *aac_get_status_string(u32 status);
 
 /*
  *	Non dasd selection is handled entirely in aachba now
- */	
- 
+ */
+
 static int nondasd = -1;
+static int aac_cache = 0;
 static int dacmode = -1;
 
 int aac_commit = -1;
@@ -152,6 +153,8 @@ int aif_timeout = 120;
 
 module_param(nondasd, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(nondasd, "Control scanning of hba for nondasd devices. 0=off, 1=on");
+module_param_named(cache, aac_cache, int, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(cache, "Disable Queue Flush commands:\n\tbit 0 - Disable FUA in WRITE SCSI commands\n\tbit 1 - Disable SYNCHRONIZE_CACHE SCSI command\n\tbit 2 - Disable only if Battery not protecting Cache");
 module_param(dacmode, int, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(dacmode, "Control whether dma addressing is using 64 bit DAC. 0=off, 1=on");
 module_param_named(commit, aac_commit, int, S_IRUGO|S_IWUSR);
@@ -179,7 +182,7 @@ MODULE_PARM_DESC(check_interval, "Interval in seconds between adapter health che
 
 int aac_check_reset = 1;
 module_param_named(check_reset, aac_check_reset, int, S_IRUGO|S_IWUSR);
-MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the adapter.");
+MODULE_PARM_DESC(aac_check_reset, "If adapter fails health check, reset the adapter. a value of -1 forces the reset to adapters programmed to ignore it.");
 
 int expose_physicals = -1;
 module_param(expose_physicals, int, S_IRUGO|S_IWUSR);
@@ -193,12 +196,12 @@ static inline int aac_valid_context(struct scsi_cmnd *scsicmd,
 		struct fib *fibptr) {
 	struct scsi_device *device;
 
-	if (unlikely(!scsicmd || !scsicmd->scsi_done )) {
+	if (unlikely(!scsicmd || !scsicmd->scsi_done)) {
 		dprintk((KERN_WARNING "aac_valid_context: scsi command corrupt\n"));
-                aac_fib_complete(fibptr);
-                aac_fib_free(fibptr);
-                return 0;
-        }
+		aac_fib_complete(fibptr);
+		aac_fib_free(fibptr);
+		return 0;
+	}
 	scsicmd->SCp.phase = AAC_OWNER_MIDLEVEL;
 	device = scsicmd->device;
 	if (unlikely(!device || !scsi_device_online(device))) {
@@ -240,7 +243,7 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 			    FsaNormal,
 			    1, 1,
 			    NULL, NULL);
-	if (status < 0 ) {
+	if (status < 0) {
 		printk(KERN_WARNING "aac_get_config_status: SendFIB failed.\n");
 	} else {
 		struct aac_get_config_status_resp *reply
@@ -264,10 +267,10 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 			struct aac_commit_config * dinfo;
 			aac_fib_init(fibptr);
 			dinfo = (struct aac_commit_config *) fib_data(fibptr);
-	
+
 			dinfo->command = cpu_to_le32(VM_ContainerConfig);
 			dinfo->type = cpu_to_le32(CT_COMMIT_CONFIG);
-	
+
 			status = aac_fib_send(ContainerCommand,
 				    fibptr,
 				    sizeof (struct aac_commit_config),
@@ -293,7 +296,7 @@ int aac_get_config_status(struct aac_dev *dev, int commit_flag)
 int aac_get_containers(struct aac_dev *dev)
 {
 	struct fsa_dev_info *fsa_dev_ptr;
-	u32 index; 
+	u32 index;
 	int status = 0;
 	struct fib * fibptr;
 	struct aac_get_container_count *dinfo;
@@ -363,6 +366,7 @@ static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigne
 	if (buf && transfer_len > 0)
 		memcpy(buf + offset, data, transfer_len);
 
+	flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
 	kunmap_atomic(buf - sg->offset, KM_IRQ0);
 
 }
@@ -395,7 +399,7 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
 			do {
 				*dp++ = (*sp) ? *sp++ : ' ';
 			} while (--count > 0);
-			aac_internal_transfer(scsicmd, d, 
+			aac_internal_transfer(scsicmd, d,
 			  offsetof(struct inquiry_data, inqd_pid), sizeof(d));
 		}
 	}
@@ -431,13 +435,13 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 	dinfo->count = cpu_to_le32(sizeof(((struct aac_get_name_resp *)NULL)->data));
 
 	status = aac_fib_send(ContainerCommand,
-		  cmd_fibcontext, 
+		  cmd_fibcontext,
 		  sizeof (struct aac_get_name),
-		  FsaNormal, 
-		  0, 1, 
-		  (fib_callback) get_container_name_callback, 
+		  FsaNormal,
+		  0, 1,
+		  (fib_callback)get_container_name_callback,
 		  (void *) scsicmd);
-	
+
 	/*
 	 *	Check that the command queued to the controller
 	 */
@@ -445,7 +449,7 @@ static int aac_get_container_name(struct scsi_cmnd * scsicmd)
 		scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 		return 0;
 	}
-		
+
 	printk(KERN_WARNING "aac_get_container_name: aac_fib_send failed with status: %d.\n", status);
 	aac_fib_complete(cmd_fibcontext);
 	aac_fib_free(cmd_fibcontext);
@@ -652,42 +656,47 @@ struct scsi_inq {
  *	@a:	string to copy from
  *	@b:	string to copy to
  *
- * 	Copy a String from one location to another
+ *	Copy a String from one location to another
  *	without copying \0
  */
 
 static void inqstrcpy(char *a, char *b)
 {
 
-	while(*a != (char)0) 
+	while (*a != (char)0)
 		*b++ = *a++;
 }
 
 static char *container_types[] = {
-        "None",
-        "Volume",
-        "Mirror",
-        "Stripe",
-        "RAID5",
-        "SSRW",
-        "SSRO",
-        "Morph",
-        "Legacy",
-        "RAID4",
-        "RAID10",             
-        "RAID00",             
-        "V-MIRRORS",          
-        "PSEUDO R4",          
+	"None",
+	"Volume",
+	"Mirror",
+	"Stripe",
+	"RAID5",
+	"SSRW",
+	"SSRO",
+	"Morph",
+	"Legacy",
+	"RAID4",
+	"RAID10",
+	"RAID00",
+	"V-MIRRORS",
+	"PSEUDO R4",
 	"RAID50",
 	"RAID5D",
 	"RAID5D0",
 	"RAID1E",
 	"RAID6",
 	"RAID60",
-        "Unknown"
+	"Unknown"
 };
 
-
+char * get_container_type(unsigned tindex)
+{
+	if (tindex >= ARRAY_SIZE(container_types))
+		tindex = ARRAY_SIZE(container_types) - 1;
+	return container_types[tindex];
+}
 
 /* Function: setinqstr
  *
@@ -707,16 +716,21 @@ static void setinqstr(struct aac_dev *dev, void *data, int tindex)
 
 	if (dev->supplement_adapter_info.AdapterTypeText[0]) {
 		char * cp = dev->supplement_adapter_info.AdapterTypeText;
-		int c = sizeof(str->vid);
-		while (*cp && *cp != ' ' && --c)
-			++cp;
-		c = *cp;
-		*cp = '\0';
-		inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
-		  str->vid); 
-		*cp = c;
-		while (*cp && *cp != ' ')
-			++cp;
+		int c;
+		if ((cp[0] == 'A') && (cp[1] == 'O') && (cp[2] == 'C'))
+			inqstrcpy("SMC", str->vid);
+		else {
+			c = sizeof(str->vid);
+			while (*cp && *cp != ' ' && --c)
+				++cp;
+			c = *cp;
+			*cp = '\0';
+			inqstrcpy (dev->supplement_adapter_info.AdapterTypeText,
+				   str->vid);
+			*cp = c;
+			while (*cp && *cp != ' ')
+				++cp;
+		}
 		while (*cp == ' ')
 			++cp;
 		/* last six chars reserved for vol type */
@@ -898,9 +912,8 @@ static int aac_bounds_32(struct aac_dev * dev, struct scsi_cmnd * cmd, u64 lba)
 			    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 			    0, 0);
 		memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(cmd->sense_buffer))
-		    ? sizeof(cmd->sense_buffer)
-		    : sizeof(dev->fsa_dev[cid].sense_data));
+		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+			     SCSI_SENSE_BUFFERSIZE));
 		cmd->scsi_done(cmd);
 		return 1;
 	}
@@ -981,7 +994,7 @@ static int aac_read_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u32
 	aac_fib_init(fib);
 	readcmd = (struct aac_read *) fib_data(fib);
 	readcmd->command = cpu_to_le32(VM_CtBlockRead);
-	readcmd->cid = cpu_to_le16(scmd_id(cmd));
+	readcmd->cid = cpu_to_le32(scmd_id(cmd));
 	readcmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 	readcmd->count = cpu_to_le32(count * 512);
 
@@ -1013,7 +1026,8 @@ static int aac_write_raw_io(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u
 	writecmd->block[1] = cpu_to_le32((u32)((lba&0xffffffff00000000LL)>>32));
 	writecmd->count = cpu_to_le32(count<<9);
 	writecmd->cid = cpu_to_le16(scmd_id(cmd));
-	writecmd->flags = fua ?
+	writecmd->flags = (fua && ((aac_cache & 5) != 1) &&
+	  (((aac_cache & 5) != 5) || !fib->dev->cache_protected)) ?
 		cpu_to_le16(IO_TYPE_WRITE|IO_SUREWRITE) :
 		cpu_to_le16(IO_TYPE_WRITE);
 	writecmd->bpTotal = 0;
@@ -1072,7 +1086,7 @@ static int aac_write_block(struct fib * fib, struct scsi_cmnd * cmd, u64 lba, u3
 	aac_fib_init(fib);
 	writecmd = (struct aac_write *) fib_data(fib);
 	writecmd->command = cpu_to_le32(VM_CtBlockWrite);
-	writecmd->cid = cpu_to_le16(scmd_id(cmd));
+	writecmd->cid = cpu_to_le32(scmd_id(cmd));
 	writecmd->block = cpu_to_le32((u32)(lba&0xffffffff));
 	writecmd->count = cpu_to_le32(count * 512);
 	writecmd->sg.count = cpu_to_le32(1);
@@ -1190,6 +1204,15 @@ static int aac_scsi_32(struct fib * fib, struct scsi_cmnd * cmd)
 				  (fib_callback) aac_srb_callback, (void *) cmd);
 }
 
+static int aac_scsi_32_64(struct fib * fib, struct scsi_cmnd * cmd)
+{
+	if ((sizeof(dma_addr_t) > 4) &&
+	 (num_physpages > (0xFFFFFFFFULL >> PAGE_SHIFT)) &&
+	 (fib->dev->adapter_info.options & AAC_OPT_SGMAP_HOST64))
+		return FAILED;
+	return aac_scsi_32(fib, cmd);
+}
+
 int aac_get_adapter_info(struct aac_dev* dev)
 {
 	struct fib* fibptr;
@@ -1207,11 +1230,11 @@ int aac_get_adapter_info(struct aac_dev* dev)
 	memset(info,0,sizeof(*info));
 
 	rcode = aac_fib_send(RequestAdapterInfo,
-			 fibptr, 
+			 fibptr,
 			 sizeof(*info),
-			 FsaNormal, 
+			 FsaNormal,
 			 -1, 1, /* First `interrupt' command uses special wait */
-			 NULL, 
+			 NULL,
 			 NULL);
 
 	if (rcode < 0) {
@@ -1222,29 +1245,29 @@ int aac_get_adapter_info(struct aac_dev* dev)
 	memcpy(&dev->adapter_info, info, sizeof(*info));
 
 	if (dev->adapter_info.options & AAC_OPT_SUPPLEMENT_ADAPTER_INFO) {
-		struct aac_supplement_adapter_info * info;
+		struct aac_supplement_adapter_info * sinfo;
 
 		aac_fib_init(fibptr);
 
-		info = (struct aac_supplement_adapter_info *) fib_data(fibptr);
+		sinfo = (struct aac_supplement_adapter_info *) fib_data(fibptr);
 
-		memset(info,0,sizeof(*info));
+		memset(sinfo,0,sizeof(*sinfo));
 
 		rcode = aac_fib_send(RequestSupplementAdapterInfo,
 				 fibptr,
-				 sizeof(*info),
+				 sizeof(*sinfo),
 				 FsaNormal,
 				 1, 1,
 				 NULL,
 				 NULL);
 
 		if (rcode >= 0)
-			memcpy(&dev->supplement_adapter_info, info, sizeof(*info));
+			memcpy(&dev->supplement_adapter_info, sinfo, sizeof(*sinfo));
 	}
 
 
-	/* 
-	 * GetBusInfo 
+	/*
+	 * GetBusInfo
 	 */
 
 	aac_fib_init(fibptr);
@@ -1267,6 +1290,8 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			 1, 1,
 			 NULL, NULL);
 
+	/* reasoned default */
+	dev->maximum_num_physicals = 16;
 	if (rcode >= 0 && le32_to_cpu(bus_info->Status) == ST_OK) {
 		dev->maximum_num_physicals = le32_to_cpu(bus_info->TargetsPerBus);
 		dev->maximum_num_channels = le32_to_cpu(bus_info->BusCount);
@@ -1276,7 +1301,7 @@ int aac_get_adapter_info(struct aac_dev* dev)
 		char buffer[16];
 		tmp = le32_to_cpu(dev->adapter_info.kernelrev);
 		printk(KERN_INFO "%s%d: kernel %d.%d-%d[%d] %.*s\n",
-			dev->name, 
+			dev->name,
 			dev->id,
 			tmp>>24,
 			(tmp>>16)&0xff,
@@ -1305,19 +1330,21 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			  (int)sizeof(dev->supplement_adapter_info.VpdInfo.Tsid),
 			  dev->supplement_adapter_info.VpdInfo.Tsid);
 		}
-		if (!aac_check_reset ||
+		if (!aac_check_reset || ((aac_check_reset != 1) &&
 		  (dev->supplement_adapter_info.SupportedOptions2 &
-		  le32_to_cpu(AAC_OPTION_IGNORE_RESET))) {
+		  AAC_OPTION_IGNORE_RESET))) {
 			printk(KERN_INFO "%s%d: Reset Adapter Ignored\n",
 			  dev->name, dev->id);
 		}
 	}
 
+	dev->cache_protected = 0;
+	dev->jbod = ((dev->supplement_adapter_info.FeatureBits &
+		AAC_FEATURE_JBOD) != 0);
 	dev->nondasd_support = 0;
 	dev->raid_scsi_mode = 0;
-	if(dev->adapter_info.options & AAC_OPT_NONDASD){
+	if(dev->adapter_info.options & AAC_OPT_NONDASD)
 		dev->nondasd_support = 1;
-	}
 
 	/*
 	 * If the firmware supports ROMB RAID/SCSI mode and we are currently
@@ -1338,11 +1365,10 @@ int aac_get_adapter_info(struct aac_dev* dev)
 	if (dev->raid_scsi_mode != 0)
 		printk(KERN_INFO "%s%d: ROMB RAID/SCSI mode enabled\n",
 				dev->name, dev->id);
-		
-	if(nondasd != -1) {  
+
+	if (nondasd != -1)
 		dev->nondasd_support = (nondasd!=0);
-	}
-	if(dev->nondasd_support != 0){
+	if(dev->nondasd_support != 0) {
 		printk(KERN_INFO "%s%d: Non-DASD support enabled.\n",dev->name, dev->id);
 	}
 
@@ -1371,12 +1397,14 @@ int aac_get_adapter_info(struct aac_dev* dev)
 			rcode = -ENOMEM;
 		}
 	}
-	/* 
+	/*
 	 * Deal with configuring for the individualized limits of each packet
 	 * interface.
 	 */
 	dev->a_ops.adapter_scsi = (dev->dac_support)
-				? aac_scsi_64
+	  ? ((aac_get_driver_ident(dev->cardtype)->quirks & AAC_QUIRK_SCSI_32)
+				? aac_scsi_32_64
+				: aac_scsi_64)
 				: aac_scsi_32;
 	if (dev->raw_io_interface) {
 		dev->a_ops.adapter_bounds = (dev->raw_io_64)
@@ -1393,8 +1421,8 @@ int aac_get_adapter_info(struct aac_dev* dev)
 		if (dev->dac_support) {
 			dev->a_ops.adapter_read = aac_read_block64;
 			dev->a_ops.adapter_write = aac_write_block64;
-			/* 
-			 * 38 scatter gather elements 
+			/*
+			 * 38 scatter gather elements
 			 */
 			dev->scsi_host_ptr->sg_tablesize =
 				(dev->max_fib_size -
@@ -1498,9 +1526,8 @@ static void io_callback(void *context, struct fib * fibptr)
 				    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 				    0, 0);
 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-		    ? sizeof(scsicmd->sense_buffer)
-		    : sizeof(dev->fsa_dev[cid].sense_data));
+		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+			     SCSI_SENSE_BUFFERSIZE));
 	}
 	aac_fib_complete(fibptr);
 	aac_fib_free(fibptr);
@@ -1524,7 +1551,7 @@ static int aac_read(struct scsi_cmnd * scsicmd)
 	case READ_6:
 		dprintk((KERN_DEBUG "aachba: received a read(6) command on id %d.\n", scmd_id(scsicmd)));
 
-		lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | 
+		lba = ((scsicmd->cmnd[1] & 0x1F) << 16) |
 			(scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
 		count = scsicmd->cmnd[4];
 
@@ -1534,32 +1561,32 @@ static int aac_read(struct scsi_cmnd * scsicmd)
 	case READ_16:
 		dprintk((KERN_DEBUG "aachba: received a read(16) command on id %d.\n", scmd_id(scsicmd)));
 
-		lba = 	((u64)scsicmd->cmnd[2] << 56) |
-		 	((u64)scsicmd->cmnd[3] << 48) |
+		lba =	((u64)scsicmd->cmnd[2] << 56) |
+			((u64)scsicmd->cmnd[3] << 48) |
 			((u64)scsicmd->cmnd[4] << 40) |
 			((u64)scsicmd->cmnd[5] << 32) |
-			((u64)scsicmd->cmnd[6] << 24) | 
+			((u64)scsicmd->cmnd[6] << 24) |
 			(scsicmd->cmnd[7] << 16) |
 			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
-		count = (scsicmd->cmnd[10] << 24) | 
+		count = (scsicmd->cmnd[10] << 24) |
 			(scsicmd->cmnd[11] << 16) |
 			(scsicmd->cmnd[12] << 8) | scsicmd->cmnd[13];
 		break;
 	case READ_12:
 		dprintk((KERN_DEBUG "aachba: received a read(12) command on id %d.\n", scmd_id(scsicmd)));
 
-		lba = ((u64)scsicmd->cmnd[2] << 24) | 
+		lba = ((u64)scsicmd->cmnd[2] << 24) |
 			(scsicmd->cmnd[3] << 16) |
-		    	(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
-		count = (scsicmd->cmnd[6] << 24) | 
+			(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
+		count = (scsicmd->cmnd[6] << 24) |
 			(scsicmd->cmnd[7] << 16) |
-		      	(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
+			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
 		break;
 	default:
 		dprintk((KERN_DEBUG "aachba: received a read(10) command on id %d.\n", scmd_id(scsicmd)));
 
-		lba = ((u64)scsicmd->cmnd[2] << 24) | 
-			(scsicmd->cmnd[3] << 16) | 
+		lba = ((u64)scsicmd->cmnd[2] << 24) |
+			(scsicmd->cmnd[3] << 16) |
 			(scsicmd->cmnd[4] << 8) | scsicmd->cmnd[5];
 		count = (scsicmd->cmnd[7] << 8) | scsicmd->cmnd[8];
 		break;
@@ -1584,7 +1611,7 @@ static int aac_read(struct scsi_cmnd * scsicmd)
 		scsicmd->SCp.phase = AAC_OWNER_FIRMWARE;
 		return 0;
 	}
-		
+
 	printk(KERN_WARNING "aac_read: aac_fib_send failed with status: %d.\n", status);
 	/*
 	 *	For some reason, the Fib didn't queue, return QUEUE_FULL
@@ -1619,11 +1646,11 @@ static int aac_write(struct scsi_cmnd * scsicmd)
 	} else if (scsicmd->cmnd[0] == WRITE_16) { /* 16 byte command */
 		dprintk((KERN_DEBUG "aachba: received a write(16) command on id %d.\n", scmd_id(scsicmd)));
 
-		lba = 	((u64)scsicmd->cmnd[2] << 56) |
+		lba =	((u64)scsicmd->cmnd[2] << 56) |
 			((u64)scsicmd->cmnd[3] << 48) |
 			((u64)scsicmd->cmnd[4] << 40) |
 			((u64)scsicmd->cmnd[5] << 32) |
-			((u64)scsicmd->cmnd[6] << 24) | 
+			((u64)scsicmd->cmnd[6] << 24) |
 			(scsicmd->cmnd[7] << 16) |
 			(scsicmd->cmnd[8] << 8) | scsicmd->cmnd[9];
 		count = (scsicmd->cmnd[10] << 24) | (scsicmd->cmnd[11] << 16) |
@@ -1712,8 +1739,8 @@ static void synchronize_callback(void *context, struct fib *fibptr)
 				    ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
 				    0, 0);
 		memcpy(cmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-		  min(sizeof(dev->fsa_dev[cid].sense_data),
-			  sizeof(cmd->sense_buffer)));
+		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+			     SCSI_SENSE_BUFFERSIZE));
 	}
 
 	aac_fib_complete(fibptr);
@@ -1798,7 +1825,7 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd)
 	if (active)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
 
-	aac = (struct aac_dev *)scsicmd->device->host->hostdata;
+	aac = (struct aac_dev *)sdev->host->hostdata;
 	if (aac->in_reset)
 		return SCSI_MLQUEUE_HOST_BUSY;
 
@@ -1850,14 +1877,14 @@ static int aac_synchronize(struct scsi_cmnd *scsicmd)
  *	Emulate a SCSI command and queue the required request for the
  *	aacraid firmware.
  */
- 
+
 int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 {
 	u32 cid;
 	struct Scsi_Host *host = scsicmd->device->host;
 	struct aac_dev *dev = (struct aac_dev *)host->hostdata;
 	struct fsa_dev_info *fsa_dev_ptr = dev->fsa_dev;
-	
+
 	if (fsa_dev_ptr == NULL)
 		return -1;
 	/*
@@ -1898,7 +1925,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				}
 			}
 		} else {  /* check for physical non-dasd devices */
-			if ((dev->nondasd_support == 1) || expose_physicals) {
+			if (dev->nondasd_support || expose_physicals ||
+					dev->jbod) {
 				if (dev->in_reset)
 					return -1;
 				return aac_send_srb_fib(scsicmd);
@@ -1913,7 +1941,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 	 * else Command for the controller itself
 	 */
 	else if ((scsicmd->cmnd[0] != INQUIRY) &&	/* only INQUIRY & TUR cmnd supported for controller */
-		(scsicmd->cmnd[0] != TEST_UNIT_READY)) 
+		(scsicmd->cmnd[0] != TEST_UNIT_READY))
 	{
 		dprintk((KERN_WARNING "Only INQUIRY & TUR command supported for controller, rcvd = 0x%x.\n", scsicmd->cmnd[0]));
 		scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
@@ -1922,9 +1950,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			    SENCODE_INVALID_COMMAND,
 			    ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
 		memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-		  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-		    ? sizeof(scsicmd->sense_buffer)
-		    : sizeof(dev->fsa_dev[cid].sense_data));
+		       min_t(size_t, sizeof(dev->fsa_dev[cid].sense_data),
+			     SCSI_SENSE_BUFFERSIZE));
 		scsicmd->scsi_done(scsicmd);
 		return 0;
 	}
@@ -1939,7 +1966,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		dprintk((KERN_DEBUG "INQUIRY command, ID: %d.\n", cid));
 		memset(&inq_data, 0, sizeof (struct inquiry_data));
 
-		if (scsicmd->cmnd[1] & 0x1 ) {
+		if (scsicmd->cmnd[1] & 0x1) {
 			char *arr = (char *)&inq_data;
 
 			/* EVPD bit set */
@@ -1974,10 +2001,9 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				  ASENCODE_NO_SENSE, 0, 7, 2, 0);
 				memcpy(scsicmd->sense_buffer,
 				  &dev->fsa_dev[cid].sense_data,
-				  (sizeof(dev->fsa_dev[cid].sense_data) >
-				    sizeof(scsicmd->sense_buffer))
-				       ? sizeof(scsicmd->sense_buffer)
-				       : sizeof(dev->fsa_dev[cid].sense_data));
+				  min_t(size_t,
+					sizeof(dev->fsa_dev[cid].sense_data),
+					SCSI_SENSE_BUFFERSIZE));
 			}
 			scsicmd->scsi_done(scsicmd);
 			return 0;
@@ -2092,7 +2118,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		mode_buf[2] = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
-		if (dev->raw_io_interface)
+		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
 			mode_buf[2] = 0x10;
 		mode_buf[3] = 0;	/* Block descriptor length */
 		if (((scsicmd->cmnd[2] & 0x3f) == 8) ||
@@ -2100,7 +2126,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mode_buf[0] = 6;
 			mode_buf[4] = 8;
 			mode_buf[5] = 1;
-			mode_buf[6] = 0x04; /* WCE */
+			mode_buf[6] = ((aac_cache & 6) == 2)
+				? 0 : 0x04; /* WCE */
 			mode_buf_length = 7;
 			if (mode_buf_length > scsicmd->cmnd[4])
 				mode_buf_length = scsicmd->cmnd[4];
@@ -2123,7 +2150,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		mode_buf[3] = 0;	/* Device-specific param,
 					   bit 8: 0/1 = write enabled/protected
 					   bit 4: 0/1 = FUA enabled */
-		if (dev->raw_io_interface)
+		if (dev->raw_io_interface && ((aac_cache & 5) != 1))
 			mode_buf[3] = 0x10;
 		mode_buf[4] = 0;	/* reserved */
 		mode_buf[5] = 0;	/* reserved */
@@ -2134,7 +2161,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			mode_buf[1] = 9;
 			mode_buf[8] = 8;
 			mode_buf[9] = 1;
-			mode_buf[10] = 0x04; /* WCE */
+			mode_buf[10] = ((aac_cache & 6) == 2)
+				? 0 : 0x04; /* WCE */
 			mode_buf_length = 11;
 			if (mode_buf_length > scsicmd->cmnd[8])
 				mode_buf_length = scsicmd->cmnd[8];
@@ -2179,7 +2207,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 		return 0;
 	}
 
-	switch (scsicmd->cmnd[0]) 
+	switch (scsicmd->cmnd[0])
 	{
 		case READ_6:
 		case READ_10:
@@ -2192,11 +2220,11 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			 *	corresponds to a container. Needed to convert
 			 *	containers to /dev/sd device names
 			 */
-			 
+
 			if (scsicmd->request->rq_disk)
 				strlcpy(fsa_dev_ptr[cid].devname,
 				scsicmd->request->rq_disk->disk_name,
-			  	min(sizeof(fsa_dev_ptr[cid].devname),
+				min(sizeof(fsa_dev_ptr[cid].devname),
 				sizeof(scsicmd->request->rq_disk->disk_name) + 1));
 
 			return aac_read(scsicmd);
@@ -2210,9 +2238,16 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 			return aac_write(scsicmd);
 
 		case SYNCHRONIZE_CACHE:
+			if (((aac_cache & 6) == 6) && dev->cache_protected) {
+				scsicmd->result = DID_OK << 16 |
+					COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
+				scsicmd->scsi_done(scsicmd);
+				return 0;
+			}
 			/* Issue FIB to tell Firmware to flush it's cache */
-			return aac_synchronize(scsicmd);
-			
+			if ((aac_cache & 6) != 2)
+				return aac_synchronize(scsicmd);
+			/* FALLTHRU */
 		default:
 			/*
 			 *	Unhandled commands
@@ -2223,9 +2258,9 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
 				ILLEGAL_REQUEST, SENCODE_INVALID_COMMAND,
 				ASENCODE_INVALID_COMMAND, 0, 0, 0, 0);
 			memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
-			  (sizeof(dev->fsa_dev[cid].sense_data) > sizeof(scsicmd->sense_buffer))
-			    ? sizeof(scsicmd->sense_buffer)
-			    : sizeof(dev->fsa_dev[cid].sense_data));
+				min_t(size_t,
+				      sizeof(dev->fsa_dev[cid].sense_data),
+				      SCSI_SENSE_BUFFERSIZE));
 			scsicmd->scsi_done(scsicmd);
 			return 0;
 	}
@@ -2243,7 +2278,7 @@ static int query_disk(struct aac_dev *dev, void __user *arg)
 		return -EFAULT;
 	if (qd.cnum == -1)
 		qd.cnum = qd.id;
-	else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1)) 
+	else if ((qd.bus == -1) && (qd.id == -1) && (qd.lun == -1))
 	{
 		if (qd.cnum < 0 || qd.cnum >= dev->maximum_num_containers)
 			return -EINVAL;
@@ -2370,7 +2405,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 
 	scsicmd->sense_buffer[0] = '\0';  /* Initialize sense valid flag to false */
 	/*
-	 *	Calculate resid for sg 
+	 *	Calculate resid for sg
 	 */
 
 	scsi_set_resid(scsicmd, scsi_bufflen(scsicmd)
@@ -2385,10 +2420,8 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 	if (le32_to_cpu(srbreply->status) != ST_OK){
 		int len;
 		printk(KERN_WARNING "aac_srb_callback: srb failed, status = %d\n", le32_to_cpu(srbreply->status));
-		len = (le32_to_cpu(srbreply->sense_data_size) > 
-				sizeof(scsicmd->sense_buffer)) ?
-				sizeof(scsicmd->sense_buffer) : 
-				le32_to_cpu(srbreply->sense_data_size);
+		len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
+			    SCSI_SENSE_BUFFERSIZE);
 		scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
 		memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
 	}
@@ -2412,7 +2445,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 		case  WRITE_12:
 		case  READ_16:
 		case  WRITE_16:
-			if(le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow ) {
+			if (le32_to_cpu(srbreply->data_xfer_length) < scsicmd->underflow) {
 				printk(KERN_WARNING"aacraid: SCSI CMD underflow\n");
 			} else {
 				printk(KERN_WARNING"aacraid: SCSI CMD Data Overrun\n");
@@ -2481,26 +2514,23 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
 		printk("aacraid: SRB ERROR(%u) %s scsi cmd 0x%x - scsi status 0x%x\n",
 			le32_to_cpu(srbreply->srb_status) & 0x3F,
 			aac_get_status_string(
-				le32_to_cpu(srbreply->srb_status) & 0x3F), 
-			scsicmd->cmnd[0], 
+				le32_to_cpu(srbreply->srb_status) & 0x3F),
+			scsicmd->cmnd[0],
 			le32_to_cpu(srbreply->scsi_status));
 #endif
 		scsicmd->result = DID_ERROR << 16 | COMMAND_COMPLETE << 8;
 		break;
 	}
-	if (le32_to_cpu(srbreply->scsi_status) == 0x02 ){  // Check Condition
+	if (le32_to_cpu(srbreply->scsi_status) == SAM_STAT_CHECK_CONDITION) {
 		int len;
 		scsicmd->result |= SAM_STAT_CHECK_CONDITION;
-		len = (le32_to_cpu(srbreply->sense_data_size) > 
-				sizeof(scsicmd->sense_buffer)) ?
-				sizeof(scsicmd->sense_buffer) :
-				le32_to_cpu(srbreply->sense_data_size);
+		len = min_t(u32, le32_to_cpu(srbreply->sense_data_size),
+			    SCSI_SENSE_BUFFERSIZE);
 #ifdef AAC_DETAILED_STATUS_INFO
 		printk(KERN_WARNING "aac_srb_callback: check condition, status = %d len=%d\n",
 					le32_to_cpu(srbreply->status), len);
 #endif
 		memcpy(scsicmd->sense_buffer, srbreply->sense_data, len);
-		
 	}
 	/*
 	 * OR in the scsi status (already shifted up a bit)
@@ -2517,7 +2547,7 @@ static void aac_srb_callback(void *context, struct fib * fibptr)
  * aac_send_scb_fib
  * @scsicmd: the scsi command block
  *
- * This routine will form a FIB and fill in the aac_srb from the 
+ * This routine will form a FIB and fill in the aac_srb from the
  * scsicmd passed in.
  */
 
@@ -2731,7 +2761,7 @@ static struct aac_srb_status_info srb_status_info[] = {
 	{ SRB_STATUS_ERROR_RECOVERY,	"Error Recovery"},
 	{ SRB_STATUS_NOT_STARTED,	"Not Started"},
 	{ SRB_STATUS_NOT_IN_USE,	"Not In Use"},
-    	{ SRB_STATUS_FORCE_ABORT,	"Force Abort"},
+	{ SRB_STATUS_FORCE_ABORT,	"Force Abort"},
 	{ SRB_STATUS_DOMAIN_VALIDATION_FAIL,"Domain Validation Failure"},
 	{ 0xff,				"Unknown Error"}
 };

drivers/scsi/aacraid/aacraid.h

@@ -1,4 +1,4 @@
-#if (!defined(dprintk))
+#ifndef dprintk
 # define dprintk(x)
 #endif
 /* eg: if (nblank(dprintk(x))) */
@@ -12,7 +12,7 @@
  *----------------------------------------------------------------------------*/
 
 #ifndef AAC_DRIVER_BUILD
-# define AAC_DRIVER_BUILD 2449
+# define AAC_DRIVER_BUILD 2455
 # define AAC_DRIVER_BRANCH "-ms"
 #endif
 #define MAXIMUM_NUM_CONTAINERS	32
@@ -50,9 +50,9 @@ struct diskparm
 /*
  *	Firmware constants
  */
- 
+
 #define		CT_NONE			0
-#define 	CT_OK        		218
+#define		CT_OK			218
 #define		FT_FILESYS	8	/* ADAPTEC's "FSA"(tm) filesystem */
 #define		FT_DRIVE	9	/* physical disk - addressable in scsi by bus/id/lun */
 
@@ -107,12 +107,12 @@ struct user_sgentryraw {
 
 struct sgmap {
 	__le32		count;
-	struct sgentry	sg[1]; 
+	struct sgentry	sg[1];
 };
 
 struct user_sgmap {
 	u32		count;
-	struct user_sgentry	sg[1]; 
+	struct user_sgentry	sg[1];
 };
 
 struct sgmap64 {
@@ -137,18 +137,18 @@ struct user_sgmapraw {
 
 struct creation_info
 {
-	u8 		buildnum;		/* e.g., 588 */
-	u8 		usec;			/* e.g., 588 */
-	u8	 	via;			/* e.g., 1 = FSU,
-						 * 	 2 = API
+	u8		buildnum;		/* e.g., 588 */
+	u8		usec;			/* e.g., 588 */
+	u8		via;			/* e.g., 1 = FSU,
+						 *	 2 = API
 						 */
-	u8	 	year;		 	/* e.g., 1997 = 97 */
+	u8		year;			/* e.g., 1997 = 97 */
 	__le32		date;			/*
-						 * unsigned 	Month		:4;	// 1 - 12
-						 * unsigned 	Day		:6;	// 1 - 32
-						 * unsigned 	Hour		:6;	// 0 - 23
-						 * unsigned 	Minute		:6;	// 0 - 60
-						 * unsigned 	Second		:6;	// 0 - 60
+						 * unsigned	Month		:4;	// 1 - 12
+						 * unsigned	Day		:6;	// 1 - 32
+						 * unsigned	Hour		:6;	// 0 - 23
+						 * unsigned	Minute		:6;	// 0 - 60
+						 * unsigned	Second		:6;	// 0 - 60
 						 */
 	__le32		serial[2];			/* e.g., 0x1DEADB0BFAFAF001 */
 };
@@ -184,7 +184,7 @@ struct creation_info
 /*
  *	Set the queues on a 16 byte alignment
  */
- 
+
 #define QUEUE_ALIGNMENT		16
 
 /*
@@ -203,9 +203,9 @@ struct aac_entry {
  *	The adapter assumes the ProducerIndex and ConsumerIndex are grouped
  *	adjacently and in that order.
  */
- 
+
 struct aac_qhdr {
-	__le64 header_addr;/* Address to hand the adapter to access 
+	__le64 header_addr;/* Address to hand the adapter to access
 			      to this queue head */
 	__le32 *producer; /* The producer index for this queue (host address) */
 	__le32 *consumer; /* The consumer index for this queue (host address) */
@@ -215,7 +215,7 @@ struct aac_qhdr {
  *	Define all the events which the adapter would like to notify
  *	the host of.
  */
- 
+
 #define		HostNormCmdQue		1	/* Change in host normal priority command queue */
 #define		HostHighCmdQue		2	/* Change in host high priority command queue */
 #define		HostNormRespQue		3	/* Change in host normal priority response queue */
@@ -286,17 +286,17 @@ struct aac_fibhdr {
 	u8 StructType;		/* Type FIB */
 	u8 Flags;		/* Flags for FIB */
 	__le16 Size;		/* Size of this FIB in bytes */
-	__le16 SenderSize;	/* Size of the FIB in the sender 
+	__le16 SenderSize;	/* Size of the FIB in the sender
 				   (for response sizing) */
 	__le32 SenderFibAddress;  /* Host defined data in the FIB */
-	__le32 ReceiverFibAddress;/* Logical address of this FIB for 
+	__le32 ReceiverFibAddress;/* Logical address of this FIB for
 				     the adapter */
 	u32 SenderData;		/* Place holder for the sender to store data */
 	union {
 		struct {
-		    __le32 _ReceiverTimeStart; 	/* Timestamp for 
+		    __le32 _ReceiverTimeStart;	/* Timestamp for
 						   receipt of fib */
-		    __le32 _ReceiverTimeDone;	/* Timestamp for 
+		    __le32 _ReceiverTimeDone;	/* Timestamp for
 						   completion of fib */
 		} _s;
 	} _u;
@@ -311,7 +311,7 @@ struct hw_fib {
  *	FIB commands
  */
 
-#define 	TestCommandResponse		1
+#define		TestCommandResponse		1
 #define		TestAdapterCommand		2
 /*
  *	Lowlevel and comm commands
@@ -349,10 +349,6 @@ struct hw_fib {
 #define		ContainerCommand		500
 #define		ContainerCommand64		501
 #define		ContainerRawIo			502
-/*
- *	Cluster Commands
- */
-#define		ClusterCommand	 		550
 /*
  *	Scsi Port commands (scsi passthrough)
  */
@@ -375,19 +371,19 @@ struct hw_fib {
  */
 
 enum fib_xfer_state {
-	HostOwned 			= (1<<0),
-	AdapterOwned 			= (1<<1),
-	FibInitialized 			= (1<<2),
-	FibEmpty 			= (1<<3),
-	AllocatedFromPool 		= (1<<4),
-	SentFromHost 			= (1<<5),
-	SentFromAdapter 		= (1<<6),
-	ResponseExpected 		= (1<<7),
-	NoResponseExpected 		= (1<<8),
-	AdapterProcessed 		= (1<<9),
-	HostProcessed 			= (1<<10),
-	HighPriority 			= (1<<11),
-	NormalPriority 			= (1<<12),
+	HostOwned			= (1<<0),
+	AdapterOwned			= (1<<1),
+	FibInitialized			= (1<<2),
+	FibEmpty			= (1<<3),
+	AllocatedFromPool		= (1<<4),
+	SentFromHost			= (1<<5),
+	SentFromAdapter			= (1<<6),
+	ResponseExpected		= (1<<7),
+	NoResponseExpected		= (1<<8),
+	AdapterProcessed		= (1<<9),
+	HostProcessed			= (1<<10),
+	HighPriority			= (1<<11),
+	NormalPriority			= (1<<12),
 	Async				= (1<<13),
 	AsyncIo				= (1<<13),	// rpbfix: remove with new regime
 	PageFileIo			= (1<<14),	// rpbfix: remove with new regime
@@ -420,7 +416,7 @@ struct aac_init
 	__le32	AdapterFibAlign;
 	__le32	printfbuf;
 	__le32	printfbufsiz;
-	__le32	HostPhysMemPages;   /* number of 4k pages of host 
+	__le32	HostPhysMemPages;   /* number of 4k pages of host
 				       physical memory */
 	__le32	HostElapsedSeconds; /* number of seconds since 1970. */
 	/*
@@ -481,7 +477,7 @@ struct adapter_ops
 
 struct aac_driver_ident
 {
-	int 	(*init)(struct aac_dev *dev);
+	int	(*init)(struct aac_dev *dev);
 	char *	name;
 	char *	vname;
 	char *	model;
@@ -489,7 +485,7 @@ struct aac_driver_ident
 	int	quirks;
 };
 /*
- * Some adapter firmware needs communication memory 
+ * Some adapter firmware needs communication memory
  * below 2gig. This tells the init function to set the
  * dma mask such that fib memory will be allocated where the
  * adapter firmware can get to it.
@@ -520,34 +516,40 @@ struct aac_driver_ident
  */
 #define AAC_QUIRK_17SG	0x0010
 
+/*
+ *	Some adapter firmware does not support 64 bit scsi passthrough
+ * commands.
+ */
+#define AAC_QUIRK_SCSI_32	0x0020
+
 /*
  *	The adapter interface specs all queues to be located in the same
  *	physically contigous block. The host structure that defines the
  *	commuication queues will assume they are each a separate physically
  *	contigous memory region that will support them all being one big
- *	contigous block. 
+ *	contigous block.
  *	There is a command and response queue for each level and direction of
  *	commuication. These regions are accessed by both the host and adapter.
  */
- 
+
 struct aac_queue {
-	u64		 	logical;	/*address we give the adapter */
+	u64			logical;	/*address we give the adapter */
 	struct aac_entry	*base;		/*system virtual address */
-	struct aac_qhdr 	headers;       	/*producer,consumer q headers*/
-	u32	 		entries;	/*Number of queue entries */
+	struct aac_qhdr		headers;	/*producer,consumer q headers*/
+	u32			entries;	/*Number of queue entries */
 	wait_queue_head_t	qfull;		/*Event to wait on if q full */
 	wait_queue_head_t	cmdready;	/*Cmd ready from the adapter */
-                  /* This is only valid for adapter to host command queues. */ 
-	spinlock_t	 	*lock;		/* Spinlock for this queue must take this lock before accessing the lock */
+		/* This is only valid for adapter to host command queues. */
+	spinlock_t		*lock;		/* Spinlock for this queue must take this lock before accessing the lock */
 	spinlock_t		lockdata;	/* Actual lock (used only on one side of the lock) */
-	struct list_head 	cmdq;	   	/* A queue of FIBs which need to be prcessed by the FS thread. This is */
-                                		/* only valid for command queues which receive entries from the adapter. */
+	struct list_head	cmdq;		/* A queue of FIBs which need to be prcessed by the FS thread. This is */
+						/* only valid for command queues which receive entries from the adapter. */
 	u32			numpending;	/* Number of entries on outstanding queue. */
 	struct aac_dev *	dev;		/* Back pointer to adapter structure */
 };
 
 /*
- *	Message queues. The order here is important, see also the 
+ *	Message queues. The order here is important, see also the
  *	queue type ordering
  */
 
@@ -559,12 +561,12 @@ struct aac_queue_block
 /*
  *	SaP1 Message Unit Registers
  */
- 
+
 struct sa_drawbridge_CSR {
-				/*	Offset 	|  Name */
+				/*	Offset	|  Name */
 	__le32	reserved[10];	/*	00h-27h |  Reserved */
 	u8	LUT_Offset;	/*	28h	|  Lookup Table Offset */
-	u8	reserved1[3];	/* 	29h-2bh	|  Reserved */
+	u8	reserved1[3];	/*	29h-2bh	|  Reserved */
 	__le32	LUT_Data;	/*	2ch	|  Looup Table Data */
 	__le32	reserved2[26];	/*	30h-97h	|  Reserved */
 	__le16	PRICLEARIRQ;	/*	98h	|  Primary Clear Irq */
@@ -583,8 +585,8 @@ struct sa_drawbridge_CSR {
 	__le32	MAILBOX5;	/*	bch	|  Scratchpad 5 */
 	__le32	MAILBOX6;	/*	c0h	|  Scratchpad 6 */
 	__le32	MAILBOX7;	/*	c4h	|  Scratchpad 7 */
-	__le32	ROM_Setup_Data;	/*	c8h 	|  Rom Setup and Data */
-	__le32	ROM_Control_Addr;/*	cch 	|  Rom Control and Address */
+	__le32	ROM_Setup_Data;	/*	c8h	|  Rom Setup and Data */
+	__le32	ROM_Control_Addr;/*	cch	|  Rom Control and Address */
 	__le32	reserved3[12];	/*	d0h-ffh	|  reserved */
 	__le32	LUT[64];	/*    100h-1ffh	|  Lookup Table Entries */
 };
@@ -597,7 +599,7 @@ struct sa_drawbridge_CSR {
 #define Mailbox5	SaDbCSR.MAILBOX5
 #define Mailbox6	SaDbCSR.MAILBOX6
 #define Mailbox7	SaDbCSR.MAILBOX7
-	
+
 #define DoorbellReg_p SaDbCSR.PRISETIRQ
 #define DoorbellReg_s SaDbCSR.SECSETIRQ
 #define DoorbellClrReg_p SaDbCSR.PRICLEARIRQ
@@ -611,19 +613,19 @@ struct sa_drawbridge_CSR {
 #define DOORBELL_5	0x0020
 #define DOORBELL_6	0x0040
 
-	
+
 #define PrintfReady	DOORBELL_5
 #define PrintfDone	DOORBELL_5
-	
+
 struct sa_registers {
 	struct sa_drawbridge_CSR	SaDbCSR;			/* 98h - c4h */
 };
-	
+
 
 #define Sa_MINIPORT_REVISION			1
 
 #define sa_readw(AEP, CSR)		readl(&((AEP)->regs.sa->CSR))
-#define sa_readl(AEP,  CSR)		readl(&((AEP)->regs.sa->CSR))
+#define sa_readl(AEP, CSR)		readl(&((AEP)->regs.sa->CSR))
 #define sa_writew(AEP, CSR, value)	writew(value, &((AEP)->regs.sa->CSR))
 #define sa_writel(AEP, CSR, value)	writel(value, &((AEP)->regs.sa->CSR))
 
@@ -640,21 +642,21 @@ struct rx_mu_registers {
 	__le32	IMRx[2];    /*	1310h  | 10h | Inbound Message Registers */
 	__le32	OMRx[2];    /*	1318h  | 18h | Outbound Message Registers */
 	__le32	IDR;	    /*	1320h  | 20h | Inbound Doorbell Register */
-	__le32	IISR;	    /*	1324h  | 24h | Inbound Interrupt 
+	__le32	IISR;	    /*	1324h  | 24h | Inbound Interrupt
 						Status Register */
-	__le32	IIMR;	    /*	1328h  | 28h | Inbound Interrupt 
-					 	Mask Register */
+	__le32	IIMR;	    /*	1328h  | 28h | Inbound Interrupt
+						Mask Register */
 	__le32	ODR;	    /*	132Ch  | 2Ch | Outbound Doorbell Register */
-	__le32	OISR;	    /*	1330h  | 30h | Outbound Interrupt 
+	__le32	OISR;	    /*	1330h  | 30h | Outbound Interrupt
 						Status Register */
-	__le32	OIMR;	    /*	1334h  | 34h | Outbound Interrupt 
+	__le32	OIMR;	    /*	1334h  | 34h | Outbound Interrupt
 						Mask Register */
 	__le32	reserved2;  /*	1338h  | 38h | Reserved */
 	__le32	reserved3;  /*	133Ch  | 3Ch | Reserved */
 	__le32	InboundQueue;/*	1340h  | 40h | Inbound Queue Port relative to firmware */
 	__le32	OutboundQueue;/*1344h  | 44h | Outbound Queue Port relative to firmware */
-			    /* * Must access through ATU Inbound 
-			     	 Translation Window */
+			    /* * Must access through ATU Inbound
+				 Translation Window */
 };
 
 struct rx_inbound {
@@ -710,12 +712,12 @@ struct rkt_registers {
 typedef void (*fib_callback)(void *ctxt, struct fib *fibctx);
 
 struct aac_fib_context {
-	s16	 		type;		// used for verification of structure	
-	s16	 		size;
+	s16			type;		// used for verification of structure
+	s16			size;
 	u32			unique;		// unique value representing this context
 	ulong			jiffies;	// used for cleanup - dmb changed to ulong
 	struct list_head	next;		// used to link context's into a linked list
-	struct semaphore 	wait_sem;	// this is used to wait for the next fib to arrive.
+	struct semaphore	wait_sem;	// this is used to wait for the next fib to arrive.
 	int			wait;		// Set to true when thread is in WaitForSingleObject
 	unsigned long		count;		// total number of FIBs on FibList
 	struct list_head	fib_list;	// this holds fibs and their attachd hw_fibs
@@ -734,9 +736,9 @@ struct sense_data {
 	u8 EOM:1;		/* End Of Medium - reserved for random access devices */
 	u8 filemark:1;		/* Filemark - reserved for random access devices */
 
-	u8 information[4];	/* for direct-access devices, contains the unsigned 
-				 * logical block address or residue associated with 
-				 * the sense key 
+	u8 information[4];	/* for direct-access devices, contains the unsigned
+				 * logical block address or residue associated with
+				 * the sense key
 				 */
 	u8 add_sense_len;	/* number of additional sense bytes to follow this field */
 	u8 cmnd_info[4];	/* not used */
@@ -746,7 +748,7 @@ struct sense_data {
 	u8 bit_ptr:3;		/* indicates which byte of the CDB or parameter data
 				 * was in error
 				 */
-	u8 BPV:1;		/* bit pointer valid (BPV): 1- indicates that 
+	u8 BPV:1;		/* bit pointer valid (BPV): 1- indicates that
 				 * the bit_ptr field has valid value
 				 */
 	u8 reserved2:2;
@@ -780,24 +782,24 @@ struct fib {
 	/*
 	 *	The Adapter that this I/O is destined for.
 	 */
-	struct aac_dev 		*dev;
+	struct aac_dev		*dev;
 	/*
 	 *	This is the event the sendfib routine will wait on if the
 	 *	caller did not pass one and this is synch io.
 	 */
-	struct semaphore 	event_wait;
+	struct semaphore	event_wait;
 	spinlock_t		event_lock;
 
 	u32			done;	/* gets set to 1 when fib is complete */
-	fib_callback 		callback;
-	void 			*callback_data;
+	fib_callback		callback;
+	void			*callback_data;
 	u32			flags; // u32 dmb was ulong
 	/*
 	 *	And for the internal issue/reply queues (we may be able
 	 *	to merge these two)
 	 */
 	struct list_head	fiblink;
-	void 			*data;
+	void			*data;
 	struct hw_fib		*hw_fib_va;		/* Actual shared object */
 	dma_addr_t		hw_fib_pa;		/* physical address of hw_fib*/
 };
@@ -807,7 +809,7 @@ struct fib {
  *
  *	This is returned by the RequestAdapterInfo block
  */
- 
+
 struct aac_adapter_info
 {
 	__le32	platform;
@@ -826,7 +828,7 @@ struct aac_adapter_info
 	__le32	biosrev;
 	__le32	biosbuild;
 	__le32	cluster;
-	__le32	clusterchannelmask; 
+	__le32	clusterchannelmask;
 	__le32	serial[2];
 	__le32	battery;
 	__le32	options;
@@ -863,9 +865,10 @@ struct aac_supplement_adapter_info
 	__le32	SupportedOptions2;
 	__le32	ReservedGrowth[1];
 };
-#define AAC_FEATURE_FALCON	0x00000010
-#define AAC_OPTION_MU_RESET	0x00000001
-#define AAC_OPTION_IGNORE_RESET	0x00000002
+#define AAC_FEATURE_FALCON	cpu_to_le32(0x00000010)
+#define AAC_FEATURE_JBOD	cpu_to_le32(0x08000000)
+#define AAC_OPTION_MU_RESET	cpu_to_le32(0x00000001)
+#define AAC_OPTION_IGNORE_RESET	cpu_to_le32(0x00000002)
 #define AAC_SIS_VERSION_V3	3
 #define AAC_SIS_SLOT_UNKNOWN	0xFF
 
@@ -916,13 +919,13 @@ struct aac_bus_info_response {
 #define AAC_OPT_HOST_TIME_FIB		cpu_to_le32(1<<4)
 #define AAC_OPT_RAID50			cpu_to_le32(1<<5)
 #define AAC_OPT_4GB_WINDOW		cpu_to_le32(1<<6)
-#define AAC_OPT_SCSI_UPGRADEABLE 	cpu_to_le32(1<<7)
+#define AAC_OPT_SCSI_UPGRADEABLE	cpu_to_le32(1<<7)
 #define AAC_OPT_SOFT_ERR_REPORT		cpu_to_le32(1<<8)
-#define AAC_OPT_SUPPORTED_RECONDITION 	cpu_to_le32(1<<9)
+#define AAC_OPT_SUPPORTED_RECONDITION	cpu_to_le32(1<<9)
 #define AAC_OPT_SGMAP_HOST64		cpu_to_le32(1<<10)
 #define AAC_OPT_ALARM			cpu_to_le32(1<<11)
 #define AAC_OPT_NONDASD			cpu_to_le32(1<<12)
-#define AAC_OPT_SCSI_MANAGED    	cpu_to_le32(1<<13)
+#define AAC_OPT_SCSI_MANAGED		cpu_to_le32(1<<13)
 #define AAC_OPT_RAID_SCSI_MODE		cpu_to_le32(1<<14)
 #define AAC_OPT_SUPPLEMENT_ADAPTER_INFO	cpu_to_le32(1<<16)
 #define AAC_OPT_NEW_COMM		cpu_to_le32(1<<17)
@@ -942,7 +945,7 @@ struct aac_dev
 
 	/*
 	 *	Map for 128 fib objects (64k)
-	 */	
+	 */
 	dma_addr_t		hw_fib_pa;
 	struct hw_fib		*hw_fib_va;
 	struct hw_fib		*aif_base_va;
@@ -953,24 +956,24 @@ struct aac_dev
 
 	struct fib		*free_fib;
 	spinlock_t		fib_lock;
-	
+
 	struct aac_queue_block *queues;
 	/*
 	 *	The user API will use an IOCTL to register itself to receive
 	 *	FIBs from the adapter.  The following list is used to keep
 	 *	track of all the threads that have requested these FIBs.  The
-	 *	mutex is used to synchronize access to all data associated 
+	 *	mutex is used to synchronize access to all data associated
 	 *	with the adapter fibs.
 	 */
 	struct list_head	fib_list;
 
 	struct adapter_ops	a_ops;
 	unsigned long		fsrev;		/* Main driver's revision number */
-	
+
 	unsigned		base_size;	/* Size of mapped in region */
 	struct aac_init		*init;		/* Holds initialization info to communicate with adapter */
-	dma_addr_t		init_pa; 	/* Holds physical address of the init struct */
-	
+	dma_addr_t		init_pa;	/* Holds physical address of the init struct */
+
 	struct pci_dev		*pdev;		/* Our PCI interface */
 	void *			printfbuf;	/* pointer to buffer used for printf's from the adapter */
 	void *			comm_addr;	/* Base address of Comm area */
@@ -984,11 +987,11 @@ struct aac_dev
 	struct fsa_dev_info	*fsa_dev;
 	struct task_struct	*thread;
 	int			cardtype;
-	
+
 	/*
 	 *	The following is the device specific extension.
 	 */
-#if (!defined(AAC_MIN_FOOTPRINT_SIZE))
+#ifndef AAC_MIN_FOOTPRINT_SIZE
 #	define AAC_MIN_FOOTPRINT_SIZE 8192
 #endif
 	union
@@ -1009,7 +1012,9 @@ struct aac_dev
 	/* These are in adapter info but they are in the io flow so
 	 * lets break them out so we don't have to do an AND to check them
 	 */
-	u8			nondasd_support; 
+	u8			nondasd_support;
+	u8			jbod;
+	u8			cache_protected;
 	u8			dac_support;
 	u8			raid_scsi_mode;
 	u8			comm_interface;
@@ -1066,18 +1071,19 @@ struct aac_dev
 	(dev)->a_ops.adapter_comm(dev, comm)
 
 #define FIB_CONTEXT_FLAG_TIMED_OUT		(0x00000001)
+#define FIB_CONTEXT_FLAG			(0x00000002)
 
 /*
  *	Define the command values
  */
- 
+
 #define		Null			0
-#define 	GetAttributes		1
-#define 	SetAttributes		2
-#define 	Lookup			3
-#define 	ReadLink		4
-#define 	Read			5
-#define 	Write			6
+#define		GetAttributes		1
+#define		SetAttributes		2
+#define		Lookup			3
+#define		ReadLink		4
+#define		Read			5
+#define		Write			6
 #define		Create			7
 #define		MakeDirectory		8
 #define		SymbolicLink		9
@@ -1173,19 +1179,19 @@ struct aac_dev
 
 struct aac_read
 {
-	__le32	 	command;
-	__le32 		cid;
-	__le32 		block;
-	__le32 		count;
+	__le32		command;
+	__le32		cid;
+	__le32		block;
+	__le32		count;
 	struct sgmap	sg;	// Must be last in struct because it is variable
 };
 
 struct aac_read64
 {
-	__le32	 	command;
-	__le16 		cid;
-	__le16 		sector_count;
-	__le32 		block;
+	__le32		command;
+	__le16		cid;
+	__le16		sector_count;
+	__le32		block;
 	__le16		pad;
 	__le16		flags;
 	struct sgmap64	sg;	// Must be last in struct because it is variable
@@ -1193,26 +1199,26 @@ struct aac_read64
 
 struct aac_read_reply
 {
-	__le32	 	status;
-	__le32 		count;
+	__le32		status;
+	__le32		count;
 };
 
 struct aac_write
 {
 	__le32		command;
-	__le32 		cid;
-	__le32 		block;
-	__le32 		count;
-	__le32	 	stable;	// Not used
+	__le32		cid;
+	__le32		block;
+	__le32		count;
+	__le32		stable;	// Not used
 	struct sgmap	sg;	// Must be last in struct because it is variable
 };
 
 struct aac_write64
 {
-	__le32	 	command;
-	__le16 		cid;
-	__le16 		sector_count;
-	__le32 		block;
+	__le32		command;
+	__le16		cid;
+	__le16		sector_count;
+	__le32		block;
 	__le16		pad;
 	__le16		flags;
 #define	IO_TYPE_WRITE 0x00000000
@@ -1223,7 +1229,7 @@ struct aac_write64
 struct aac_write_reply
 {
 	__le32		status;
-	__le32 		count;
+	__le32		count;
 	__le32		committed;
 };
 
@@ -1326,10 +1332,10 @@ struct aac_srb_reply
 #define		SRB_NoDataXfer		 0x0000
 #define		SRB_DisableDisconnect	 0x0004
 #define		SRB_DisableSynchTransfer 0x0008
-#define 	SRB_BypassFrozenQueue	 0x0010
+#define		SRB_BypassFrozenQueue	 0x0010
 #define		SRB_DisableAutosense	 0x0020
 #define		SRB_DataIn		 0x0040
-#define 	SRB_DataOut		 0x0080
+#define		SRB_DataOut		 0x0080
 
 /*
  * SRB Functions - set in aac_srb->function
@@ -1352,7 +1358,7 @@ struct aac_srb_reply
 #define	SRBF_RemoveDevice	0x0016
 #define	SRBF_DomainValidation	0x0017
 
-/* 
+/*
  * SRB SCSI Status - set in aac_srb->scsi_status
  */
 #define SRB_STATUS_PENDING                  0x00
@@ -1511,17 +1517,17 @@ struct aac_get_container_count_resp {
  */
 
 struct aac_mntent {
-	__le32    		oid;
+	__le32			oid;
 	u8			name[16];	/* if applicable */
 	struct creation_info	create_info;	/* if applicable */
 	__le32			capacity;
-	__le32			vol;    	/* substrate structure */
-	__le32			obj;	        /* FT_FILESYS, etc. */
-	__le32			state;		/* unready for mounting, 
+	__le32			vol;		/* substrate structure */
+	__le32			obj;		/* FT_FILESYS, etc. */
+	__le32			state;		/* unready for mounting,
 						   readonly, etc. */
-	union aac_contentinfo	fileinfo;	/* Info specific to content 
+	union aac_contentinfo	fileinfo;	/* Info specific to content
 						   manager (eg, filesystem) */
-	__le32			altoid;		/* != oid <==> snapshot or 
+	__le32			altoid;		/* != oid <==> snapshot or
 						   broken mirror exists */
 	__le32			capacityhigh;
 };
@@ -1538,7 +1544,7 @@ struct aac_query_mount {
 
 struct aac_mount {
 	__le32		status;
-	__le32	   	type;           /* should be same as that requested */
+	__le32		type;           /* should be same as that requested */
 	__le32		count;
 	struct aac_mntent mnt[1];
 };
@@ -1608,7 +1614,7 @@ struct aac_delete_disk {
 	u32	disknum;
 	u32	cnum;
 };
- 
+
 struct fib_ioctl
 {
 	u32	fibctx;
@@ -1622,10 +1628,10 @@ struct revision
 	__le32 version;
 	__le32 build;
 };
-	
+
 
 /*
- * 	Ugly - non Linux like ioctl coding for back compat.
+ *	Ugly - non Linux like ioctl coding for back compat.
  */
 
 #define CTL_CODE(function, method) (                 \
@@ -1633,7 +1639,7 @@ struct revision
 )
 
 /*
- *	Define the method codes for how buffers are passed for I/O and FS 
+ *	Define the method codes for how buffers are passed for I/O and FS
  *	controls
  */
 
@@ -1644,15 +1650,15 @@ struct revision
  *	Filesystem ioctls
  */
 
-#define FSACTL_SENDFIB                  	CTL_CODE(2050, METHOD_BUFFERED)
-#define FSACTL_SEND_RAW_SRB               	CTL_CODE(2067, METHOD_BUFFERED)
+#define FSACTL_SENDFIB				CTL_CODE(2050, METHOD_BUFFERED)
+#define FSACTL_SEND_RAW_SRB			CTL_CODE(2067, METHOD_BUFFERED)
 #define FSACTL_DELETE_DISK			0x163
 #define FSACTL_QUERY_DISK			0x173
 #define FSACTL_OPEN_GET_ADAPTER_FIB		CTL_CODE(2100, METHOD_BUFFERED)
 #define FSACTL_GET_NEXT_ADAPTER_FIB		CTL_CODE(2101, METHOD_BUFFERED)
 #define FSACTL_CLOSE_GET_ADAPTER_FIB		CTL_CODE(2102, METHOD_BUFFERED)
 #define FSACTL_MINIPORT_REV_CHECK               CTL_CODE(2107, METHOD_BUFFERED)
-#define FSACTL_GET_PCI_INFO               	CTL_CODE(2119, METHOD_BUFFERED)
+#define FSACTL_GET_PCI_INFO			CTL_CODE(2119, METHOD_BUFFERED)
 #define FSACTL_FORCE_DELETE_DISK		CTL_CODE(2120, METHOD_NEITHER)
 #define FSACTL_GET_CONTAINERS			2131
 #define FSACTL_SEND_LARGE_FIB			CTL_CODE(2138, METHOD_BUFFERED)
@@ -1661,7 +1667,7 @@ struct revision
 struct aac_common
 {
 	/*
-	 *	If this value is set to 1 then interrupt moderation will occur 
+	 *	If this value is set to 1 then interrupt moderation will occur
 	 *	in the base commuication support.
 	 */
 	u32 irq_mod;
@@ -1690,11 +1696,11 @@ extern struct aac_common aac_config;
  *	The following macro is used when sending and receiving FIBs. It is
  *	only used for debugging.
  */
- 
+
 #ifdef DBG
 #define	FIB_COUNTER_INCREMENT(counter)		(counter)++
 #else
-#define	FIB_COUNTER_INCREMENT(counter)		
+#define	FIB_COUNTER_INCREMENT(counter)
 #endif
 
 /*
@@ -1726,17 +1732,17 @@ extern struct aac_common aac_config;
  *
  *	The adapter reports is present state through the phase.  Only
  *	a single phase should be ever be set.  Each phase can have multiple
- *	phase status bits to provide more detailed information about the 
- *	state of the board.  Care should be taken to ensure that any phase 
+ *	phase status bits to provide more detailed information about the
+ *	state of the board.  Care should be taken to ensure that any phase
  *	status bits that are set when changing the phase are also valid
  *	for the new phase or be cleared out.  Adapter software (monitor,
- *	iflash, kernel) is responsible for properly maintining the phase 
+ *	iflash, kernel) is responsible for properly maintining the phase
  *	status mailbox when it is running.
- *											
- *	MONKER_API Phases							
  *
- *	Phases are bit oriented.  It is NOT valid  to have multiple bits set						
- */					
+ *	MONKER_API Phases
+ *
+ *	Phases are bit oriented.  It is NOT valid  to have multiple bits set
+ */
 
 #define	SELF_TEST_FAILED		0x00000004
 #define	MONITOR_PANIC			0x00000020
@@ -1759,16 +1765,22 @@ extern struct aac_common aac_config;
  *	For FIB communication, we need all of the following things
  *	to send back to the user.
  */
- 
-#define 	AifCmdEventNotify	1	/* Notify of event */
+
+#define		AifCmdEventNotify	1	/* Notify of event */
 #define			AifEnConfigChange	3	/* Adapter configuration change */
 #define			AifEnContainerChange	4	/* Container configuration change */
 #define			AifEnDeviceFailure	5	/* SCSI device failed */
+#define			AifEnEnclosureManagement 13	/* EM_DRIVE_* */
+#define				EM_DRIVE_INSERTION	31
+#define				EM_DRIVE_REMOVAL	32
+#define			AifEnBatteryEvent	14	/* Change in Battery State */
 #define			AifEnAddContainer	15	/* A new array was created */
 #define			AifEnDeleteContainer	16	/* A container was deleted */
 #define			AifEnExpEvent		23	/* Firmware Event Log */
 #define			AifExeFirmwarePanic	3	/* Firmware Event Panic */
 #define			AifHighPriority		3	/* Highest Priority Event */
+#define			AifEnAddJBOD		30	/* JBOD created */
+#define			AifEnDeleteJBOD		31	/* JBOD deleted */
 
 #define		AifCmdJobProgress	2	/* Progress report */
 #define			AifJobCtrZero	101	/* Array Zero progress */
@@ -1780,11 +1792,11 @@ extern struct aac_common aac_config;
 #define			AifDenVolumeExtendComplete 201 /* A volume extend completed */
 #define		AifReqJobList		100	/* Gets back complete job list */
 #define		AifReqJobsForCtr	101	/* Gets back jobs for specific container */
-#define		AifReqJobsForScsi	102	/* Gets back jobs for specific SCSI device */ 
-#define		AifReqJobReport		103	/* Gets back a specific job report or list of them */ 
+#define		AifReqJobsForScsi	102	/* Gets back jobs for specific SCSI device */
+#define		AifReqJobReport		103	/* Gets back a specific job report or list of them */
 #define		AifReqTerminateJob	104	/* Terminates job */
 #define		AifReqSuspendJob	105	/* Suspends a job */
-#define		AifReqResumeJob		106	/* Resumes a job */ 
+#define		AifReqResumeJob		106	/* Resumes a job */
 #define		AifReqSendAPIReport	107	/* API generic report requests */
 #define		AifReqAPIJobStart	108	/* Start a job from the API */
 #define		AifReqAPIJobUpdate	109	/* Update a job report from the API */
@@ -1803,8 +1815,8 @@ struct aac_aifcmd {
 };
 
 /**
- * 	Convert capacity to cylinders
- *  	accounting for the fact capacity could be a 64 bit value
+ *	Convert capacity to cylinders
+ *	accounting for the fact capacity could be a 64 bit value
  *
  */
 static inline unsigned int cap_to_cyls(sector_t capacity, unsigned divisor)
@@ -1861,6 +1873,7 @@ int aac_probe_container(struct aac_dev *dev, int cid);
 int _aac_rx_init(struct aac_dev *dev);
 int aac_rx_select_comm(struct aac_dev *dev, int comm);
 int aac_rx_deliver_producer(struct fib * fib);
+char * get_container_type(unsigned type);
 extern int numacb;
 extern int acbsize;
 extern char aac_driver_version[];

drivers/scsi/aacraid/commctrl.c

@@ -48,13 +48,13 @@
  *	ioctl_send_fib	-	send a FIB from userspace
  *	@dev:	adapter is being processed
  *	@arg:	arguments to the ioctl call
- *	
+ *
  *	This routine sends a fib to the adapter on behalf of a user level
  *	program.
  */
 # define AAC_DEBUG_PREAMBLE	KERN_INFO
 # define AAC_DEBUG_POSTAMBLE
- 
+
 static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
 {
 	struct hw_fib * kfib;
@@ -71,7 +71,7 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
 	if(fibptr == NULL) {
 		return -ENOMEM;
 	}
-		
+
 	kfib = fibptr->hw_fib_va;
 	/*
 	 *	First copy in the header so that we can check the size field.
@@ -109,7 +109,7 @@ static int ioctl_send_fib(struct aac_dev * dev, void __user *arg)
 	if (kfib->header.Command == cpu_to_le16(TakeABreakPt)) {
 		aac_adapter_interrupt(dev);
 		/*
-		 * Since we didn't really send a fib, zero out the state to allow 
+		 * Since we didn't really send a fib, zero out the state to allow
 		 * cleanup code not to assert.
 		 */
 		kfib->header.XferState = 0;
@@ -169,7 +169,7 @@ static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
 
 		fibctx->type = FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT;
 		fibctx->size = sizeof(struct aac_fib_context);
- 		/*
+		/*
 		 *	Yes yes, I know this could be an index, but we have a
 		 * better guarantee of uniqueness for the locked loop below.
 		 * Without the aid of a persistent history, this also helps
@@ -189,7 +189,7 @@ static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
 		INIT_LIST_HEAD(&fibctx->fib_list);
 		fibctx->jiffies = jiffies/HZ;
 		/*
-		 *	Now add this context onto the adapter's 
+		 *	Now add this context onto the adapter's
 		 *	AdapterFibContext list.
 		 */
 		spin_lock_irqsave(&dev->fib_lock, flags);
@@ -207,12 +207,12 @@ static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
 		}
 		list_add_tail(&fibctx->next, &dev->fib_list);
 		spin_unlock_irqrestore(&dev->fib_lock, flags);
-		if (copy_to_user(arg,  &fibctx->unique, 
+		if (copy_to_user(arg, &fibctx->unique,
 						sizeof(fibctx->unique))) {
 			status = -EFAULT;
 		} else {
 			status = 0;
-		}	
+		}
 	}
 	return status;
 }
@@ -221,8 +221,8 @@ static int open_getadapter_fib(struct aac_dev * dev, void __user *arg)
  *	next_getadapter_fib	-	get the next fib
  *	@dev: adapter to use
  *	@arg: ioctl argument
- *	
- * 	This routine will get the next Fib, if available, from the AdapterFibContext
+ *
+ *	This routine will get the next Fib, if available, from the AdapterFibContext
  *	passed in from the user.
  */
 
@@ -234,7 +234,7 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
 	int status;
 	struct list_head * entry;
 	unsigned long flags;
-	
+
 	if(copy_from_user((void *)&f, arg, sizeof(struct fib_ioctl)))
 		return -EFAULT;
 	/*
@@ -243,6 +243,7 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
 	 *	Search the list of AdapterFibContext addresses on the adapter
 	 *	to be sure this is a valid address
 	 */
+	spin_lock_irqsave(&dev->fib_lock, flags);
 	entry = dev->fib_list.next;
 	fibctx = NULL;
 
@@ -251,37 +252,37 @@ static int next_getadapter_fib(struct aac_dev * dev, void __user *arg)
 		/*
 		 *	Extract the AdapterFibContext from the Input parameters.
 		 */
-		if (fibctx->unique == f.fibctx) {   /* We found a winner */
+		if (fibctx->unique == f.fibctx) { /* We found a winner */
 			break;
 		}
 		entry = entry->next;
 		fibctx = NULL;
 	}
 	if (!fibctx) {
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
 		dprintk ((KERN_INFO "Fib Context not found\n"));
 		return -EINVAL;
 	}
 
 	if((fibctx->type != FSAFS_NTC_GET_ADAPTER_FIB_CONTEXT) ||
 		 (fibctx->size != sizeof(struct aac_fib_context))) {
+		spin_unlock_irqrestore(&dev->fib_lock, flags);
 		dprintk ((KERN_INFO "Fib Context corrupt?\n"));
 		return -EINVAL;
 	}
 	status = 0;
-	spin_lock_irqsave(&dev->fib_lock, flags);
 	/*
 	 *	If there are no fibs to send back, then either wait or return
 	 *	-EAGAIN
 	 */
 return_fib:
 	if (!list_empty(&fibctx->fib_list)) {
-		struct list_head * entry;
 		/*
 		 *	Pull the next fib from the fibs
 		 */
 		entry = fibctx->fib_list.next;
 		list_del(entry);
-		
+
 		fib = list_entry(entry, struct fib, fiblink);
 		fibctx->count--;
 		spin_unlock_irqrestore(&dev->fib_lock, flags);
@@ -289,7 +290,7 @@ return_fib:
 			kfree(fib->hw_fib_va);
 			kfree(fib);
 			return -EFAULT;
-		}	
+		}
 		/*
 		 *	Free the space occupied by this copy of the fib.
 		 */
@@ -318,7 +319,7 @@ return_fib:
 			}
 		} else {
 			status = -EAGAIN;
-		}	
+		}
 	}
 	fibctx->jiffies = jiffies/HZ;
 	return status;
@@ -327,7 +328,9 @@ return_fib:
 int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
 {
 	struct fib *fib;
+	unsigned long flags;
 
+	spin_lock_irqsave(&dev->fib_lock, flags);
 	/*
 	 *	First free any FIBs that have not been consumed.
 	 */
@@ -350,6 +353,7 @@ int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
 	 *	Remove the Context from the AdapterFibContext List
 	 */
 	list_del(&fibctx->next);
+	spin_unlock_irqrestore(&dev->fib_lock, flags);
 	/*
 	 *	Invalidate context
 	 */
@@ -368,7 +372,7 @@ int aac_close_fib_context(struct aac_dev * dev, struct aac_fib_context * fibctx)
  *
  *	This routine will close down the fibctx passed in from the user.
  */
- 
+
 static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
 {
 	struct aac_fib_context *fibctx;
@@ -415,8 +419,8 @@ static int close_getadapter_fib(struct aac_dev * dev, void __user *arg)
  *	@arg: ioctl arguments
  *
  *	This routine returns the driver version.
- *      Under Linux, there have been no version incompatibilities, so this is 
- *      simple!
+ *	Under Linux, there have been no version incompatibilities, so this is
+ *	simple!
  */
 
 static int check_revision(struct aac_dev *dev, void __user *arg)
@@ -426,12 +430,12 @@ static int check_revision(struct aac_dev *dev, void __user *arg)
 	u32 version;
 
 	response.compat = 1;
-	version = (simple_strtol(driver_version, 
+	version = (simple_strtol(driver_version,
 				&driver_version, 10) << 24) | 0x00000400;
 	version += simple_strtol(driver_version + 1, &driver_version, 10) << 16;
 	version += simple_strtol(driver_version + 1, NULL, 10);
 	response.version = cpu_to_le32(version);
-#	if (defined(AAC_DRIVER_BUILD))
+#	ifdef AAC_DRIVER_BUILD
 		response.build = cpu_to_le32(AAC_DRIVER_BUILD);
 #	else
 		response.build = cpu_to_le32(9999);
@@ -464,7 +468,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 	u32 data_dir;
 	void __user *sg_user[32];
 	void *sg_list[32];
-	u32   sg_indx = 0;
+	u32 sg_indx = 0;
 	u32 byte_count = 0;
 	u32 actual_fibsize64, actual_fibsize = 0;
 	int i;
@@ -475,7 +479,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 		return -EBUSY;
 	}
 	if (!capable(CAP_SYS_ADMIN)){
-		dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n")); 
+		dprintk((KERN_DEBUG"aacraid: No permission to send raw srb\n"));
 		return -EPERM;
 	}
 	/*
@@ -490,7 +494,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 
 	memset(sg_list, 0, sizeof(sg_list)); /* cleanup may take issue */
 	if(copy_from_user(&fibsize, &user_srb->count,sizeof(u32))){
-		dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n")); 
+		dprintk((KERN_DEBUG"aacraid: Could not copy data size from user\n"));
 		rcode = -EFAULT;
 		goto cleanup;
 	}
@@ -507,7 +511,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 		goto cleanup;
 	}
 	if(copy_from_user(user_srbcmd, user_srb,fibsize)){
-		dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n")); 
+		dprintk((KERN_DEBUG"aacraid: Could not copy srb from user\n"));
 		rcode = -EFAULT;
 		goto cleanup;
 	}
@@ -518,15 +522,15 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 	// Fix up srb for endian and force some values
 
 	srbcmd->function = cpu_to_le32(SRBF_ExecuteScsi);	// Force this
-	srbcmd->channel  = cpu_to_le32(user_srbcmd->channel);
+	srbcmd->channel	 = cpu_to_le32(user_srbcmd->channel);
 	srbcmd->id	 = cpu_to_le32(user_srbcmd->id);
-	srbcmd->lun      = cpu_to_le32(user_srbcmd->lun);
-	srbcmd->timeout  = cpu_to_le32(user_srbcmd->timeout);
-	srbcmd->flags    = cpu_to_le32(flags);
+	srbcmd->lun	 = cpu_to_le32(user_srbcmd->lun);
+	srbcmd->timeout	 = cpu_to_le32(user_srbcmd->timeout);
+	srbcmd->flags	 = cpu_to_le32(flags);
 	srbcmd->retry_limit = 0; // Obsolete parameter
 	srbcmd->cdb_size = cpu_to_le32(user_srbcmd->cdb_size);
 	memcpy(srbcmd->cdb, user_srbcmd->cdb, sizeof(srbcmd->cdb));
-	
+
 	switch (flags & (SRB_DataIn | SRB_DataOut)) {
 	case SRB_DataOut:
 		data_dir = DMA_TO_DEVICE;
@@ -582,7 +586,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				void* p;
 				/* Does this really need to be GFP_DMA? */
 				p = kmalloc(upsg->sg[i].count,GFP_KERNEL|__GFP_DMA);
-				if(p == 0) {
+				if(!p) {
 					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
 					  upsg->sg[i].count,i,upsg->count));
 					rcode = -ENOMEM;
@@ -594,7 +598,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				sg_list[i] = p; // save so we can clean up later
 				sg_indx = i;
 
-				if( flags & SRB_DataOut ){
+				if (flags & SRB_DataOut) {
 					if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){
 						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
 						rcode = -EFAULT;
@@ -626,7 +630,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				void* p;
 				/* Does this really need to be GFP_DMA? */
 				p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
-				if(p == 0) {
+				if(!p) {
 					kfree (usg);
 					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
 					  usg->sg[i].count,i,usg->count));
@@ -637,7 +641,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				sg_list[i] = p; // save so we can clean up later
 				sg_indx = i;
 
-				if( flags & SRB_DataOut ){
+				if (flags & SRB_DataOut) {
 					if(copy_from_user(p,sg_user[i],upsg->sg[i].count)){
 						kfree (usg);
 						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
@@ -668,7 +672,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				void* p;
 				/* Does this really need to be GFP_DMA? */
 				p = kmalloc(usg->sg[i].count,GFP_KERNEL|__GFP_DMA);
-				if(p == 0) {
+				if(!p) {
 					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
 					  usg->sg[i].count,i,usg->count));
 					rcode = -ENOMEM;
@@ -680,7 +684,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				sg_list[i] = p; // save so we can clean up later
 				sg_indx = i;
 
-				if( flags & SRB_DataOut ){
+				if (flags & SRB_DataOut) {
 					if(copy_from_user(p,sg_user[i],usg->sg[i].count)){
 						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
 						rcode = -EFAULT;
@@ -698,7 +702,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				dma_addr_t addr;
 				void* p;
 				p = kmalloc(upsg->sg[i].count, GFP_KERNEL);
-				if(p == 0) {
+				if (!p) {
 					dprintk((KERN_DEBUG"aacraid: Could not allocate SG buffer - size = %d buffer number %d of %d\n",
 					  upsg->sg[i].count, i, upsg->count));
 					rcode = -ENOMEM;
@@ -708,7 +712,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 				sg_list[i] = p; // save so we can clean up later
 				sg_indx = i;
 
-				if( flags & SRB_DataOut ){
+				if (flags & SRB_DataOut) {
 					if(copy_from_user(p, sg_user[i],
 							upsg->sg[i].count)) {
 						dprintk((KERN_DEBUG"aacraid: Could not copy sg data from user\n"));
@@ -734,19 +738,19 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 	}
 
 	if (status != 0){
-		dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n")); 
+		dprintk((KERN_DEBUG"aacraid: Could not send raw srb fib to hba\n"));
 		rcode = -ENXIO;
 		goto cleanup;
 	}
 
-	if( flags & SRB_DataIn ) {
+	if (flags & SRB_DataIn) {
 		for(i = 0 ; i <= sg_indx; i++){
 			byte_count = le32_to_cpu(
 			  (dev->adapter_info.options & AAC_OPT_SGMAP_HOST64)
 			      ? ((struct sgmap64*)&srbcmd->sg)->sg[i].count
 			      : srbcmd->sg.sg[i].count);
 			if(copy_to_user(sg_user[i], sg_list[i], byte_count)){
-				dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n")); 
+				dprintk((KERN_DEBUG"aacraid: Could not copy sg data to user\n"));
 				rcode = -EFAULT;
 				goto cleanup;
 
@@ -756,7 +760,7 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 
 	reply = (struct aac_srb_reply *) fib_data(srbfib);
 	if(copy_to_user(user_reply,reply,sizeof(struct aac_srb_reply))){
-		dprintk((KERN_DEBUG"aacraid: Could not copy reply to user\n")); 
+		dprintk((KERN_DEBUG"aacraid: Could not copy reply to user\n"));
 		rcode = -EFAULT;
 		goto cleanup;
 	}
@@ -775,34 +779,34 @@ cleanup:
 }
 
 struct aac_pci_info {
-        u32 bus;
-        u32 slot;
+	u32 bus;
+	u32 slot;
 };
 
 
 static int aac_get_pci_info(struct aac_dev* dev, void __user *arg)
 {
-        struct aac_pci_info pci_info;
+	struct aac_pci_info pci_info;
 
 	pci_info.bus = dev->pdev->bus->number;
 	pci_info.slot = PCI_SLOT(dev->pdev->devfn);
 
-       if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
-               dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
-               return -EFAULT;
+	if (copy_to_user(arg, &pci_info, sizeof(struct aac_pci_info))) {
+		dprintk((KERN_DEBUG "aacraid: Could not copy pci info\n"));
+		return -EFAULT;
 	}
-        return 0;
+	return 0;
 }
- 
+
 
 int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
 {
 	int status;
-	
+
 	/*
 	 *	HBA gets first crack
 	 */
-	 
+
 	status = aac_dev_ioctl(dev, cmd, arg);
 	if(status != -ENOTTY)
 		return status;
@@ -832,7 +836,7 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
 		break;
 	default:
 		status = -ENOTTY;
-	  	break;	
+		break;
 	}
 	return status;
 }

drivers/scsi/aacraid/comminit.c

@@ -301,10 +301,10 @@ struct aac_dev *aac_init_adapter(struct aac_dev *dev)
 	if ((!aac_adapter_sync_cmd(dev, GET_ADAPTER_PROPERTIES,
 		0, 0, 0, 0, 0, 0, status+0, status+1, status+2, NULL, NULL)) &&
 	 		(status[0] == 0x00000001)) {
-		if (status[1] & AAC_OPT_NEW_COMM_64)
+		if (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM_64))
 			dev->raw_io_64 = 1;
 		if (dev->a_ops.adapter_comm &&
-		    (status[1] & AAC_OPT_NEW_COMM))
+		    (status[1] & le32_to_cpu(AAC_OPT_NEW_COMM)))
 			dev->comm_interface = AAC_COMM_MESSAGE;
 		if ((dev->comm_interface == AAC_COMM_MESSAGE) &&
 		    (status[2] > dev->base_size)) {

drivers/scsi/aacraid/commsup.c

@@ -56,7 +56,7 @@
  *	Allocate and map the shared PCI space for the FIB blocks used to
  *	talk to the Adaptec firmware.
  */
- 
+
 static int fib_map_alloc(struct aac_dev *dev)
 {
 	dprintk((KERN_INFO
@@ -109,14 +109,16 @@ int aac_fib_setup(struct aac_dev * dev)
 	}
 	if (i<0)
 		return -ENOMEM;
-		
+
 	hw_fib = dev->hw_fib_va;
 	hw_fib_pa = dev->hw_fib_pa;
 	memset(hw_fib, 0, dev->max_fib_size * (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB));
 	/*
 	 *	Initialise the fibs
 	 */
-	for (i = 0, fibptr = &dev->fibs[i]; i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB); i++, fibptr++) 
+	for (i = 0, fibptr = &dev->fibs[i];
+		i < (dev->scsi_host_ptr->can_queue + AAC_NUM_MGT_FIB);
+		i++, fibptr++)
 	{
 		fibptr->dev = dev;
 		fibptr->hw_fib_va = hw_fib;
@@ -148,13 +150,13 @@ int aac_fib_setup(struct aac_dev * dev)
  *	Allocate a fib from the adapter fib pool. If the pool is empty we
  *	return NULL.
  */
- 
+
 struct fib *aac_fib_alloc(struct aac_dev *dev)
 {
 	struct fib * fibptr;
 	unsigned long flags;
 	spin_lock_irqsave(&dev->fib_lock, flags);
-	fibptr = dev->free_fib;	
+	fibptr = dev->free_fib;
 	if(!fibptr){
 		spin_unlock_irqrestore(&dev->fib_lock, flags);
 		return fibptr;
@@ -171,6 +173,7 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
 	 *	each I/O
 	 */
 	fibptr->hw_fib_va->header.XferState = 0;
+	fibptr->flags = 0;
 	fibptr->callback = NULL;
 	fibptr->callback_data = NULL;
 
@@ -183,7 +186,7 @@ struct fib *aac_fib_alloc(struct aac_dev *dev)
  *
  *	Frees up a fib and places it on the appropriate queue
  */
- 
+
 void aac_fib_free(struct fib *fibptr)
 {
 	unsigned long flags;
@@ -204,10 +207,10 @@ void aac_fib_free(struct fib *fibptr)
 /**
  *	aac_fib_init	-	initialise a fib
  *	@fibptr: The fib to initialize
- *	
+ *
  *	Set up the generic fib fields ready for use
  */
- 
+
 void aac_fib_init(struct fib *fibptr)
 {
 	struct hw_fib *hw_fib = fibptr->hw_fib_va;
@@ -227,12 +230,12 @@ void aac_fib_init(struct fib *fibptr)
  *	Will deallocate and return to the free pool the FIB pointed to by the
  *	caller.
  */
- 
+
 static void fib_dealloc(struct fib * fibptr)
 {
 	struct hw_fib *hw_fib = fibptr->hw_fib_va;
 	BUG_ON(hw_fib->header.StructType != FIB_MAGIC);
-	hw_fib->header.XferState = 0;        
+	hw_fib->header.XferState = 0;
 }
 
 /*
@@ -241,7 +244,7 @@ static void fib_dealloc(struct fib * fibptr)
  *	these routines and are the only routines which have a knowledge of the
  *	 how these queues are implemented.
  */
- 
+
 /**
  *	aac_get_entry		-	get a queue entry
  *	@dev: Adapter
@@ -254,7 +257,7 @@ static void fib_dealloc(struct fib * fibptr)
  *	is full(no free entries) than no entry is returned and the function returns 0 otherwise 1 is
  *	returned.
  */
- 
+
 static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entry, u32 * index, unsigned long *nonotify)
 {
 	struct aac_queue * q;
@@ -279,26 +282,27 @@ static int aac_get_entry (struct aac_dev * dev, u32 qid, struct aac_entry **entr
 				idx = ADAP_NORM_RESP_ENTRIES;
 		}
 		if (idx != le32_to_cpu(*(q->headers.consumer)))
-			*nonotify = 1; 
+			*nonotify = 1;
 	}
 
 	if (qid == AdapNormCmdQueue) {
-	        if (*index >= ADAP_NORM_CMD_ENTRIES) 
+		if (*index >= ADAP_NORM_CMD_ENTRIES)
 			*index = 0; /* Wrap to front of the Producer Queue. */
 	} else {
-		if (*index >= ADAP_NORM_RESP_ENTRIES) 
+		if (*index >= ADAP_NORM_RESP_ENTRIES)
 			*index = 0; /* Wrap to front of the Producer Queue. */
 	}
 
-        if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) { /* Queue is full */
+	/* Queue is full */
+	if ((*index + 1) == le32_to_cpu(*(q->headers.consumer))) {
 		printk(KERN_WARNING "Queue %d full, %u outstanding.\n",
 				qid, q->numpending);
 		return 0;
 	} else {
-	        *entry = q->base + *index;
+		*entry = q->base + *index;
 		return 1;
 	}
-}   
+}
 
 /**
  *	aac_queue_get		-	get the next free QE
@@ -320,31 +324,29 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
 {
 	struct aac_entry * entry = NULL;
 	int map = 0;
-	    
+
 	if (qid == AdapNormCmdQueue) {
 		/*  if no entries wait for some if caller wants to */
-        	while (!aac_get_entry(dev, qid, &entry, index, nonotify)) 
-        	{
+		while (!aac_get_entry(dev, qid, &entry, index, nonotify)) {
 			printk(KERN_ERR "GetEntries failed\n");
 		}
-	        /*
-	         *	Setup queue entry with a command, status and fib mapped
-	         */
-	        entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
-	        map = 1;
+		/*
+		 *	Setup queue entry with a command, status and fib mapped
+		 */
+		entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
+		map = 1;
 	} else {
-	        while(!aac_get_entry(dev, qid, &entry, index, nonotify)) 
-	        {
+		while (!aac_get_entry(dev, qid, &entry, index, nonotify)) {
 			/* if no entries wait for some if caller wants to */
 		}
-        	/*
-        	 *	Setup queue entry with command, status and fib mapped
-        	 */
-        	entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
-        	entry->addr = hw_fib->header.SenderFibAddress;
-     			/* Restore adapters pointer to the FIB */
+		/*
+		 *	Setup queue entry with command, status and fib mapped
+		 */
+		entry->size = cpu_to_le32(le16_to_cpu(hw_fib->header.Size));
+		entry->addr = hw_fib->header.SenderFibAddress;
+			/* Restore adapters pointer to the FIB */
 		hw_fib->header.ReceiverFibAddress = hw_fib->header.SenderFibAddress;	/* Let the adapter now where to find its data */
-        	map = 0;
+		map = 0;
 	}
 	/*
 	 *	If MapFib is true than we need to map the Fib and put pointers
@@ -356,8 +358,8 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
 }
 
 /*
- *	Define the highest level of host to adapter communication routines. 
- *	These routines will support host to adapter FS commuication. These 
+ *	Define the highest level of host to adapter communication routines.
+ *	These routines will support host to adapter FS commuication. These
  *	routines have no knowledge of the commuication method used. This level
  *	sends and receives FIBs. This level has no knowledge of how these FIBs
  *	get passed back and forth.
@@ -379,7 +381,7 @@ int aac_queue_get(struct aac_dev * dev, u32 * index, u32 qid, struct hw_fib * hw
  *	an event to wait on must be supplied. This event will be set when a
  *	response FIB is received from the adapter.
  */
- 
+
 int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 		int priority, int wait, int reply, fib_callback callback,
 		void *callback_data)
@@ -392,16 +394,17 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	if (!(hw_fib->header.XferState & cpu_to_le32(HostOwned)))
 		return -EBUSY;
 	/*
-	 *	There are 5 cases with the wait and reponse requested flags. 
+	 *	There are 5 cases with the wait and reponse requested flags.
 	 *	The only invalid cases are if the caller requests to wait and
 	 *	does not request a response and if the caller does not want a
 	 *	response and the Fib is not allocated from pool. If a response
 	 *	is not requesed the Fib will just be deallocaed by the DPC
 	 *	routine when the response comes back from the adapter. No
-	 *	further processing will be done besides deleting the Fib. We 
+	 *	further processing will be done besides deleting the Fib. We
 	 *	will have a debug mode where the adapter can notify the host
 	 *	it had a problem and the host can log that fact.
 	 */
+	fibptr->flags = 0;
 	if (wait && !reply) {
 		return -EINVAL;
 	} else if (!wait && reply) {
@@ -413,7 +416,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	} else if (wait && reply) {
 		hw_fib->header.XferState |= cpu_to_le32(ResponseExpected);
 		FIB_COUNTER_INCREMENT(aac_config.NormalSent);
-	} 
+	}
 	/*
 	 *	Map the fib into 32bits by using the fib number
 	 */
@@ -436,7 +439,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	hw_fib->header.Size = cpu_to_le16(sizeof(struct aac_fibhdr) + size);
 	if (le16_to_cpu(hw_fib->header.Size) > le16_to_cpu(hw_fib->header.SenderSize)) {
 		return -EMSGSIZE;
-	}                
+	}
 	/*
 	 *	Get a queue entry connect the FIB to it and send an notify
 	 *	the adapter a command is ready.
@@ -450,10 +453,10 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	if (!wait) {
 		fibptr->callback = callback;
 		fibptr->callback_data = callback_data;
+		fibptr->flags = FIB_CONTEXT_FLAG;
 	}
 
 	fibptr->done = 0;
-	fibptr->flags = 0;
 
 	FIB_COUNTER_INCREMENT(aac_config.FibsSent);
 
@@ -473,9 +476,9 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 	aac_adapter_deliver(fibptr);
 
 	/*
-	 *	If the caller wanted us to wait for response wait now. 
+	 *	If the caller wanted us to wait for response wait now.
 	 */
-    
+
 	if (wait) {
 		spin_unlock_irqrestore(&fibptr->event_lock, flags);
 		/* Only set for first known interruptable command */
@@ -522,7 +525,7 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 		}
 		spin_unlock_irqrestore(&fibptr->event_lock, flags);
 		BUG_ON(fibptr->done == 0);
-			
+
 		if(unlikely(fibptr->flags & FIB_CONTEXT_FLAG_TIMED_OUT))
 			return -ETIMEDOUT;
 		return 0;
@@ -537,15 +540,15 @@ int aac_fib_send(u16 command, struct fib *fibptr, unsigned long size,
 		return 0;
 }
 
-/** 
+/**
  *	aac_consumer_get	-	get the top of the queue
  *	@dev: Adapter
  *	@q: Queue
  *	@entry: Return entry
  *
  *	Will return a pointer to the entry on the top of the queue requested that
- * 	we are a consumer of, and return the address of the queue entry. It does
- *	not change the state of the queue. 
+ *	we are a consumer of, and return the address of the queue entry. It does
+ *	not change the state of the queue.
  */
 
 int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entry **entry)
@@ -560,10 +563,10 @@ int aac_consumer_get(struct aac_dev * dev, struct aac_queue * q, struct aac_entr
 		 *	the end of the queue, else we just use the entry
 		 *	pointed to by the header index
 		 */
-		if (le32_to_cpu(*q->headers.consumer) >= q->entries) 
-			index = 0;		
+		if (le32_to_cpu(*q->headers.consumer) >= q->entries)
+			index = 0;
 		else
-		        index = le32_to_cpu(*q->headers.consumer);
+			index = le32_to_cpu(*q->headers.consumer);
 		*entry = q->base + index;
 		status = 1;
 	}
@@ -587,12 +590,12 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid)
 
 	if ((le32_to_cpu(*q->headers.producer)+1) == le32_to_cpu(*q->headers.consumer))
 		wasfull = 1;
-        
+
 	if (le32_to_cpu(*q->headers.consumer) >= q->entries)
 		*q->headers.consumer = cpu_to_le32(1);
 	else
 		*q->headers.consumer = cpu_to_le32(le32_to_cpu(*q->headers.consumer)+1);
-        
+
 	if (wasfull) {
 		switch (qid) {
 
@@ -608,7 +611,7 @@ void aac_consumer_free(struct aac_dev * dev, struct aac_queue *q, u32 qid)
 		}
 		aac_adapter_notify(dev, notify);
 	}
-}        
+}
 
 /**
  *	aac_fib_adapter_complete	-	complete adapter issued fib
@@ -630,32 +633,32 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 	if (hw_fib->header.XferState == 0) {
 		if (dev->comm_interface == AAC_COMM_MESSAGE)
 			kfree (hw_fib);
-        	return 0;
+		return 0;
 	}
 	/*
 	 *	If we plan to do anything check the structure type first.
-	 */ 
-	if ( hw_fib->header.StructType != FIB_MAGIC ) {
+	 */
+	if (hw_fib->header.StructType != FIB_MAGIC) {
 		if (dev->comm_interface == AAC_COMM_MESSAGE)
 			kfree (hw_fib);
-        	return -EINVAL;
+		return -EINVAL;
 	}
 	/*
 	 *	This block handles the case where the adapter had sent us a
 	 *	command and we have finished processing the command. We
-	 *	call completeFib when we are done processing the command 
-	 *	and want to send a response back to the adapter. This will 
+	 *	call completeFib when we are done processing the command
+	 *	and want to send a response back to the adapter. This will
 	 *	send the completed cdb to the adapter.
 	 */
 	if (hw_fib->header.XferState & cpu_to_le32(SentFromAdapter)) {
 		if (dev->comm_interface == AAC_COMM_MESSAGE) {
 			kfree (hw_fib);
 		} else {
-	       		u32 index;
-		        hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
+			u32 index;
+			hw_fib->header.XferState |= cpu_to_le32(HostProcessed);
 			if (size) {
 				size += sizeof(struct aac_fibhdr);
-				if (size > le16_to_cpu(hw_fib->header.SenderSize)) 
+				if (size > le16_to_cpu(hw_fib->header.SenderSize))
 					return -EMSGSIZE;
 				hw_fib->header.Size = cpu_to_le16(size);
 			}
@@ -667,12 +670,11 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
 			if (!(nointr & (int)aac_config.irq_mod))
 				aac_adapter_notify(dev, AdapNormRespQueue);
 		}
+	} else {
+		printk(KERN_WARNING "aac_fib_adapter_complete: "
+			"Unknown xferstate detected.\n");
+		BUG();
 	}
-	else 
-	{
-        	printk(KERN_WARNING "aac_fib_adapter_complete: Unknown xferstate detected.\n");
-        	BUG();
-	}   
 	return 0;
 }
 
@@ -682,7 +684,7 @@ int aac_fib_adapter_complete(struct fib *fibptr, unsigned short size)
  *
  *	Will do all necessary work to complete a FIB.
  */
- 
+
 int aac_fib_complete(struct fib *fibptr)
 {
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
@@ -692,15 +694,15 @@ int aac_fib_complete(struct fib *fibptr)
 	 */
 
 	if (hw_fib->header.XferState == 0)
-        	return 0;
+		return 0;
 	/*
 	 *	If we plan to do anything check the structure type first.
-	 */ 
+	 */
 
 	if (hw_fib->header.StructType != FIB_MAGIC)
-	        return -EINVAL;
+		return -EINVAL;
 	/*
-	 *	This block completes a cdb which orginated on the host and we 
+	 *	This block completes a cdb which orginated on the host and we
 	 *	just need to deallocate the cdb or reinit it. At this point the
 	 *	command is complete that we had sent to the adapter and this
 	 *	cdb could be reused.
@@ -721,7 +723,7 @@ int aac_fib_complete(struct fib *fibptr)
 		fib_dealloc(fibptr);
 	} else {
 		BUG();
-	}   
+	}
 	return 0;
 }
 
@@ -741,7 +743,7 @@ void aac_printf(struct aac_dev *dev, u32 val)
 	{
 		int length = val & 0xffff;
 		int level = (val >> 16) & 0xffff;
-		
+
 		/*
 		 *	The size of the printfbuf is set in port.c
 		 *	There is no variable or define for it
@@ -755,7 +757,7 @@ void aac_printf(struct aac_dev *dev, u32 val)
 		else
 			printk(KERN_INFO "%s:%s", dev->name, cp);
 	}
-	memset(cp, 0,  256);
+	memset(cp, 0, 256);
 }
 
 
@@ -773,20 +775,20 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 {
 	struct hw_fib * hw_fib = fibptr->hw_fib_va;
 	struct aac_aifcmd * aifcmd = (struct aac_aifcmd *)hw_fib->data;
-	u32 container;
+	u32 channel, id, lun, container;
 	struct scsi_device *device;
 	enum {
 		NOTHING,
 		DELETE,
 		ADD,
 		CHANGE
-	} device_config_needed;
+	} device_config_needed = NOTHING;
 
 	/* Sniff for container changes */
 
 	if (!dev || !dev->fsa_dev)
 		return;
-	container = (u32)-1;
+	container = channel = id = lun = (u32)-1;
 
 	/*
 	 *	We have set this up to try and minimize the number of
@@ -796,13 +798,13 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 	 */
 	switch (le32_to_cpu(aifcmd->command)) {
 	case AifCmdDriverNotify:
-		switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
+		switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
 		/*
 		 *	Morph or Expand complete
 		 */
 		case AifDenMorphComplete:
 		case AifDenVolumeExtendComplete:
-			container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
 			if (container >= dev->maximum_num_containers)
 				break;
 
@@ -814,9 +816,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			 */
 
 			if ((dev != NULL) && (dev->scsi_host_ptr != NULL)) {
-				device = scsi_device_lookup(dev->scsi_host_ptr, 
-					CONTAINER_TO_CHANNEL(container), 
-					CONTAINER_TO_ID(container), 
+				device = scsi_device_lookup(dev->scsi_host_ptr,
+					CONTAINER_TO_CHANNEL(container),
+					CONTAINER_TO_ID(container),
 					CONTAINER_TO_LUN(container));
 				if (device) {
 					dev->fsa_dev[container].config_needed = CHANGE;
@@ -835,25 +837,29 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			if (container >= dev->maximum_num_containers)
 				break;
 			if ((dev->fsa_dev[container].config_waiting_on ==
-			    le32_to_cpu(*(u32 *)aifcmd->data)) &&
+			    le32_to_cpu(*(__le32 *)aifcmd->data)) &&
 			 time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
 				dev->fsa_dev[container].config_waiting_on = 0;
 		} else for (container = 0;
 		    container < dev->maximum_num_containers; ++container) {
 			if ((dev->fsa_dev[container].config_waiting_on ==
-			    le32_to_cpu(*(u32 *)aifcmd->data)) &&
+			    le32_to_cpu(*(__le32 *)aifcmd->data)) &&
 			 time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
 				dev->fsa_dev[container].config_waiting_on = 0;
 		}
 		break;
 
 	case AifCmdEventNotify:
-		switch (le32_to_cpu(((u32 *)aifcmd->data)[0])) {
+		switch (le32_to_cpu(((__le32 *)aifcmd->data)[0])) {
+		case AifEnBatteryEvent:
+			dev->cache_protected =
+				(((__le32 *)aifcmd->data)[1] == cpu_to_le32(3));
+			break;
 		/*
 		 *	Add an Array.
 		 */
 		case AifEnAddContainer:
-			container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
 			if (container >= dev->maximum_num_containers)
 				break;
 			dev->fsa_dev[container].config_needed = ADD;
@@ -866,7 +872,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 		 *	Delete an Array.
 		 */
 		case AifEnDeleteContainer:
-			container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
 			if (container >= dev->maximum_num_containers)
 				break;
 			dev->fsa_dev[container].config_needed = DELETE;
@@ -880,7 +886,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 		 * waiting on something else, setup to wait on a Config Change.
 		 */
 		case AifEnContainerChange:
-			container = le32_to_cpu(((u32 *)aifcmd->data)[1]);
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
 			if (container >= dev->maximum_num_containers)
 				break;
 			if (dev->fsa_dev[container].config_waiting_on &&
@@ -895,6 +901,60 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 		case AifEnConfigChange:
 			break;
 
+		case AifEnAddJBOD:
+		case AifEnDeleteJBOD:
+			container = le32_to_cpu(((__le32 *)aifcmd->data)[1]);
+			if ((container >> 28))
+				break;
+			channel = (container >> 24) & 0xF;
+			if (channel >= dev->maximum_num_channels)
+				break;
+			id = container & 0xFFFF;
+			if (id >= dev->maximum_num_physicals)
+				break;
+			lun = (container >> 16) & 0xFF;
+			channel = aac_phys_to_logical(channel);
+			device_config_needed =
+			  (((__le32 *)aifcmd->data)[0] ==
+			    cpu_to_le32(AifEnAddJBOD)) ? ADD : DELETE;
+			break;
+
+		case AifEnEnclosureManagement:
+			/*
+			 * If in JBOD mode, automatic exposure of new
+			 * physical target to be suppressed until configured.
+			 */
+			if (dev->jbod)
+				break;
+			switch (le32_to_cpu(((__le32 *)aifcmd->data)[3])) {
+			case EM_DRIVE_INSERTION:
+			case EM_DRIVE_REMOVAL:
+				container = le32_to_cpu(
+					((__le32 *)aifcmd->data)[2]);
+				if ((container >> 28))
+					break;
+				channel = (container >> 24) & 0xF;
+				if (channel >= dev->maximum_num_channels)
+					break;
+				id = container & 0xFFFF;
+				lun = (container >> 16) & 0xFF;
+				if (id >= dev->maximum_num_physicals) {
+					/* legacy dev_t ? */
+					if ((0x2000 <= id) || lun || channel ||
+					  ((channel = (id >> 7) & 0x3F) >=
+					  dev->maximum_num_channels))
+						break;
+					lun = (id >> 4) & 7;
+					id &= 0xF;
+				}
+				channel = aac_phys_to_logical(channel);
+				device_config_needed =
+				  (((__le32 *)aifcmd->data)[3]
+				    == cpu_to_le32(EM_DRIVE_INSERTION)) ?
+				  ADD : DELETE;
+				break;
+			}
+			break;
 		}
 
 		/*
@@ -905,13 +965,13 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			if (container >= dev->maximum_num_containers)
 				break;
 			if ((dev->fsa_dev[container].config_waiting_on ==
-			    le32_to_cpu(*(u32 *)aifcmd->data)) &&
+			    le32_to_cpu(*(__le32 *)aifcmd->data)) &&
 			 time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
 				dev->fsa_dev[container].config_waiting_on = 0;
 		} else for (container = 0;
 		    container < dev->maximum_num_containers; ++container) {
 			if ((dev->fsa_dev[container].config_waiting_on ==
-			    le32_to_cpu(*(u32 *)aifcmd->data)) &&
+			    le32_to_cpu(*(__le32 *)aifcmd->data)) &&
 			 time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT))
 				dev->fsa_dev[container].config_waiting_on = 0;
 		}
@@ -926,9 +986,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 		 * wait for a container change.
 		 */
 
-		if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
-		 && ((((u32 *)aifcmd->data)[6] == ((u32 *)aifcmd->data)[5])
-		  || (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess)))) {
+		if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) &&
+		    (((__le32 *)aifcmd->data)[6] == ((__le32 *)aifcmd->data)[5] ||
+		     ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsSuccess))) {
 			for (container = 0;
 			    container < dev->maximum_num_containers;
 			    ++container) {
@@ -943,9 +1003,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 					jiffies;
 			}
 		}
-		if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero))
-		 && (((u32 *)aifcmd->data)[6] == 0)
-		 && (((u32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning))) {
+		if (((__le32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero) &&
+		    ((__le32 *)aifcmd->data)[6] == 0 &&
+		    ((__le32 *)aifcmd->data)[4] == cpu_to_le32(AifJobStsRunning)) {
 			for (container = 0;
 			    container < dev->maximum_num_containers;
 			    ++container) {
@@ -963,7 +1023,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 		break;
 	}
 
-	device_config_needed = NOTHING;
+	if (device_config_needed == NOTHING)
 	for (container = 0; container < dev->maximum_num_containers;
 	    ++container) {
 		if ((dev->fsa_dev[container].config_waiting_on == 0) &&
@@ -972,6 +1032,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 			device_config_needed =
 				dev->fsa_dev[container].config_needed;
 			dev->fsa_dev[container].config_needed = NOTHING;
+			channel = CONTAINER_TO_CHANNEL(container);
+			id = CONTAINER_TO_ID(container);
+			lun = CONTAINER_TO_LUN(container);
 			break;
 		}
 	}
@@ -995,34 +1058,56 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr)
 	/*
 	 * force reload of disk info via aac_probe_container
 	 */
-	if ((device_config_needed == CHANGE)
-	 && (dev->fsa_dev[container].valid == 1))
-		dev->fsa_dev[container].valid = 2;
-	if ((device_config_needed == CHANGE) ||
-			(device_config_needed == ADD))
+	if ((channel == CONTAINER_CHANNEL) &&
+	  (device_config_needed != NOTHING)) {
+		if (dev->fsa_dev[container].valid == 1)
+			dev->fsa_dev[container].valid = 2;
 		aac_probe_container(dev, container);
-	device = scsi_device_lookup(dev->scsi_host_ptr, 
-		CONTAINER_TO_CHANNEL(container), 
-		CONTAINER_TO_ID(container), 
-		CONTAINER_TO_LUN(container));
+	}
+	device = scsi_device_lookup(dev->scsi_host_ptr, channel, id, lun);
 	if (device) {
 		switch (device_config_needed) {
 		case DELETE:
+			if (scsi_device_online(device)) {
+				scsi_device_set_state(device, SDEV_OFFLINE);
+				sdev_printk(KERN_INFO, device,
+					"Device offlined - %s\n",
+					(channel == CONTAINER_CHANNEL) ?
+						"array deleted" :
+						"enclosure services event");
+			}
+			break;
+		case ADD:
+			if (!scsi_device_online(device)) {
+				sdev_printk(KERN_INFO, device,
+					"Device online - %s\n",
+					(channel == CONTAINER_CHANNEL) ?
+						"array created" :
+						"enclosure services event");
+				scsi_device_set_state(device, SDEV_RUNNING);
+			}
+			/* FALLTHRU */
 		case CHANGE:
+			if ((channel == CONTAINER_CHANNEL)
+			 && (!dev->fsa_dev[container].valid)) {
+				if (!scsi_device_online(device))
+					break;
+				scsi_device_set_state(device, SDEV_OFFLINE);
+				sdev_printk(KERN_INFO, device,
+					"Device offlined - %s\n",
+					"array failed");
+				break;
+			}
 			scsi_rescan_device(&device->sdev_gendev);
 
 		default:
 			break;
 		}
 		scsi_device_put(device);
+		device_config_needed = NOTHING;
 	}
-	if (device_config_needed == ADD) {
-		scsi_add_device(dev->scsi_host_ptr,
-		  CONTAINER_TO_CHANNEL(container),
-		  CONTAINER_TO_ID(container),
-		  CONTAINER_TO_LUN(container));
-	}
-
+	if (device_config_needed == ADD)
+		scsi_add_device(dev->scsi_host_ptr, channel, id, lun);
 }
 
 static int _aac_reset_adapter(struct aac_dev *aac, int forced)
@@ -1099,7 +1184,8 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 	free_irq(aac->pdev->irq, aac);
 	kfree(aac->fsa_dev);
 	aac->fsa_dev = NULL;
-	if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT) {
+	quirks = aac_get_driver_ident(index)->quirks;
+	if (quirks & AAC_QUIRK_31BIT) {
 		if (((retval = pci_set_dma_mask(aac->pdev, DMA_31BIT_MASK))) ||
 		  ((retval = pci_set_consistent_dma_mask(aac->pdev, DMA_31BIT_MASK))))
 			goto out;
@@ -1110,7 +1196,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 	}
 	if ((retval = (*(aac_get_driver_ident(index)->init))(aac)))
 		goto out;
-	if (aac_get_driver_ident(index)->quirks & AAC_QUIRK_31BIT)
+	if (quirks & AAC_QUIRK_31BIT)
 		if ((retval = pci_set_dma_mask(aac->pdev, DMA_32BIT_MASK)))
 			goto out;
 	if (jafo) {
@@ -1121,15 +1207,14 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced)
 		}
 	}
 	(void)aac_get_adapter_info(aac);
-	quirks = aac_get_driver_ident(index)->quirks;
 	if ((quirks & AAC_QUIRK_34SG) && (host->sg_tablesize > 34)) {
- 		host->sg_tablesize = 34;
- 		host->max_sectors = (host->sg_tablesize * 8) + 112;
- 	}
- 	if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) {
- 		host->sg_tablesize = 17;
- 		host->max_sectors = (host->sg_tablesize * 8) + 112;
- 	}
+		host->sg_tablesize = 34;
+		host->max_sectors = (host->sg_tablesize * 8) + 112;
+	}
+	if ((quirks & AAC_QUIRK_17SG) && (host->sg_tablesize > 17)) {
+		host->sg_tablesize = 17;
+		host->max_sectors = (host->sg_tablesize * 8) + 112;
+	}
 	aac_get_config_status(aac, 1);
 	aac_get_containers(aac);
 	/*
@@ -1217,12 +1302,13 @@ int aac_reset_adapter(struct aac_dev * aac, int forced)
 	}
 
 	/* Quiesce build, flush cache, write through mode */
-	aac_send_shutdown(aac);
+	if (forced < 2)
+		aac_send_shutdown(aac);
 	spin_lock_irqsave(host->host_lock, flagv);
-	retval = _aac_reset_adapter(aac, forced);
+	retval = _aac_reset_adapter(aac, forced ? forced : ((aac_check_reset != 0) && (aac_check_reset != 1)));
 	spin_unlock_irqrestore(host->host_lock, flagv);
 
-	if (retval == -ENODEV) {
+	if ((forced < 2) && (retval == -ENODEV)) {
 		/* Unwind aac_send_shutdown() IOP_RESET unsupported/disabled */
 		struct fib * fibctx = aac_fib_alloc(aac);
 		if (fibctx) {
@@ -1338,11 +1424,11 @@ int aac_check_health(struct aac_dev * aac)
 			fib->data = hw_fib->data;
 			aif = (struct aac_aifcmd *)hw_fib->data;
 			aif->command = cpu_to_le32(AifCmdEventNotify);
-		 	aif->seqnum = cpu_to_le32(0xFFFFFFFF);
-			aif->data[0] = AifEnExpEvent;
-			aif->data[1] = AifExeFirmwarePanic;
-			aif->data[2] = AifHighPriority;
-			aif->data[3] = BlinkLED;
+			aif->seqnum = cpu_to_le32(0xFFFFFFFF);
+			((__le32 *)aif->data)[0] = cpu_to_le32(AifEnExpEvent);
+			((__le32 *)aif->data)[1] = cpu_to_le32(AifExeFirmwarePanic);
+			((__le32 *)aif->data)[2] = cpu_to_le32(AifHighPriority);
+			((__le32 *)aif->data)[3] = cpu_to_le32(BlinkLED);
 
 			/*
 			 * Put the FIB onto the
@@ -1372,14 +1458,14 @@ int aac_check_health(struct aac_dev * aac)
 
 	printk(KERN_ERR "%s: Host adapter BLINK LED 0x%x\n", aac->name, BlinkLED);
 
-	if (!aac_check_reset ||
+	if (!aac_check_reset || ((aac_check_reset != 1) &&
 		(aac->supplement_adapter_info.SupportedOptions2 &
-			le32_to_cpu(AAC_OPTION_IGNORE_RESET)))
+			AAC_OPTION_IGNORE_RESET)))
 		goto out;
 	host = aac->scsi_host_ptr;
 	if (aac->thread->pid != current->pid)
 		spin_lock_irqsave(host->host_lock, flagv);
-	BlinkLED = _aac_reset_adapter(aac, 0);
+	BlinkLED = _aac_reset_adapter(aac, aac_check_reset != 1);
 	if (aac->thread->pid != current->pid)
 		spin_unlock_irqrestore(host->host_lock, flagv);
 	return BlinkLED;
@@ -1399,7 +1485,7 @@ out:
  *	until the queue is empty. When the queue is empty it will wait for
  *	more FIBs.
  */
- 
+
 int aac_command_thread(void *data)
 {
 	struct aac_dev *dev = data;
@@ -1425,30 +1511,29 @@ int aac_command_thread(void *data)
 	add_wait_queue(&dev->queues->queue[HostNormCmdQueue].cmdready, &wait);
 	set_current_state(TASK_INTERRUPTIBLE);
 	dprintk ((KERN_INFO "aac_command_thread start\n"));
-	while(1) 
-	{
+	while (1) {
 		spin_lock_irqsave(dev->queues->queue[HostNormCmdQueue].lock, flags);
 		while(!list_empty(&(dev->queues->queue[HostNormCmdQueue].cmdq))) {
 			struct list_head *entry;
 			struct aac_aifcmd * aifcmd;
 
 			set_current_state(TASK_RUNNING);
-	
+
 			entry = dev->queues->queue[HostNormCmdQueue].cmdq.next;
 			list_del(entry);
-		
+
 			spin_unlock_irqrestore(dev->queues->queue[HostNormCmdQueue].lock, flags);
 			fib = list_entry(entry, struct fib, fiblink);
 			/*
-			 *	We will process the FIB here or pass it to a 
-			 *	worker thread that is TBD. We Really can't 
+			 *	We will process the FIB here or pass it to a
+			 *	worker thread that is TBD. We Really can't
 			 *	do anything at this point since we don't have
 			 *	anything defined for this thread to do.
 			 */
 			hw_fib = fib->hw_fib_va;
 			memset(fib, 0, sizeof(struct fib));
 			fib->type = FSAFS_NTC_FIB_CONTEXT;
-			fib->size = sizeof( struct fib );
+			fib->size = sizeof(struct fib);
 			fib->hw_fib_va = hw_fib;
 			fib->data = hw_fib->data;
 			fib->dev = dev;
@@ -1462,20 +1547,19 @@ int aac_command_thread(void *data)
 				*(__le32 *)hw_fib->data = cpu_to_le32(ST_OK);
 				aac_fib_adapter_complete(fib, (u16)sizeof(u32));
 			} else {
-				struct list_head *entry;
 				/* The u32 here is important and intended. We are using
 				   32bit wrapping time to fit the adapter field */
-				   
+
 				u32 time_now, time_last;
 				unsigned long flagv;
 				unsigned num;
 				struct hw_fib ** hw_fib_pool, ** hw_fib_p;
 				struct fib ** fib_pool, ** fib_p;
-			
+
 				/* Sniff events */
-				if ((aifcmd->command == 
+				if ((aifcmd->command ==
 				     cpu_to_le32(AifCmdEventNotify)) ||
-				    (aifcmd->command == 
+				    (aifcmd->command ==
 				     cpu_to_le32(AifCmdJobProgress))) {
 					aac_handle_aif(dev, fib);
 				}
@@ -1527,7 +1611,7 @@ int aac_command_thread(void *data)
 				spin_lock_irqsave(&dev->fib_lock, flagv);
 				entry = dev->fib_list.next;
 				/*
-				 * For each Context that is on the 
+				 * For each Context that is on the
 				 * fibctxList, make a copy of the
 				 * fib, and then set the event to wake up the
 				 * thread that is waiting for it.
@@ -1552,7 +1636,7 @@ int aac_command_thread(void *data)
 						 */
 						time_last = fibctx->jiffies;
 						/*
-						 * Has it been > 2 minutes 
+						 * Has it been > 2 minutes
 						 * since the last read off
 						 * the queue?
 						 */
@@ -1583,7 +1667,7 @@ int aac_command_thread(void *data)
 						 */
 						list_add_tail(&newfib->fiblink, &fibctx->fib_list);
 						fibctx->count++;
-						/* 
+						/*
 						 * Set the event to wake up the
 						 * thread that is waiting.
 						 */
@@ -1655,11 +1739,11 @@ int aac_command_thread(void *data)
 				struct fib *fibptr;
 
 				if ((fibptr = aac_fib_alloc(dev))) {
-					u32 * info;
+					__le32 *info;
 
 					aac_fib_init(fibptr);
 
-					info = (u32 *) fib_data(fibptr);
+					info = (__le32 *) fib_data(fibptr);
 					if (now.tv_usec > 500000)
 						++now.tv_sec;
 

drivers/scsi/aacraid/dpcsup.c

@@ -120,6 +120,7 @@ unsigned int aac_response_normal(struct aac_queue * q)
 			 *	NOTE:  we cannot touch the fib after this
 			 *	    call, because it may have been deallocated.
 			 */
+			fib->flags = 0;
 			fib->callback(fib->callback_data, fib);
 		} else {
 			unsigned long flagv;
@@ -229,11 +230,9 @@ unsigned int aac_command_normal(struct aac_queue *q)
  *	all QE there are and wake up all the waiters before exiting.
  */
 
-unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index)
+unsigned int aac_intr_normal(struct aac_dev * dev, u32 index)
 {
-	u32 index = le32_to_cpu(Index);
-
-	dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, Index));
+	dprintk((KERN_INFO "aac_intr_normal(%p,%x)\n", dev, index));
 	if ((index & 0x00000002L)) {
 		struct hw_fib * hw_fib;
 		struct fib * fib;
@@ -301,7 +300,7 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index)
 
 		if (hwfib->header.Command == cpu_to_le16(NuFileSystem))
 		{
-			u32 *pstatus = (u32 *)hwfib->data;
+			__le32 *pstatus = (__le32 *)hwfib->data;
 			if (*pstatus & cpu_to_le32(0xffff0000))
 				*pstatus = cpu_to_le32(ST_OK);
 		}
@@ -315,6 +314,7 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index)
 			 *	NOTE:  we cannot touch the fib after this
 			 *	    call, because it may have been deallocated.
 			 */
+			fib->flags = 0;
 			fib->callback(fib->callback_data, fib);
 		} else {
 			unsigned long flagv;

drivers/scsi/aacraid/linit.c

@@ -159,27 +159,27 @@ static struct pci_device_id aac_pci_tbl[] = {
 MODULE_DEVICE_TABLE(pci, aac_pci_tbl);
 
 /*
- * dmb - For now we add the number of channels to this structure.  
+ * dmb - For now we add the number of channels to this structure.
  * In the future we should add a fib that reports the number of channels
  * for the card.  At that time we can remove the channels from here
  */
 static struct aac_driver_ident aac_drivers[] = {
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 2/Si (Iguana/PERC2Si) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Opal/PERC3Di) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Si (SlimFast/PERC3Si */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Viper/PERC3DiV) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Lexus/PERC3DiL) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Dagger/PERC3DiD) */
-	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* PERC 3/Di (Boxster/PERC3DiB) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* catapult */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* tomcat */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2120S (Crusader) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan) */
-	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Adaptec 2200S (Vulcan-2m) */
-	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S220 (Legend Crusader) */
-	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend S230 (Legend Vulcan) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 2/Si (Iguana/PERC2Si) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Opal/PERC3Di) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Si (SlimFast/PERC3Si */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Iguana FlipChip/PERC3DiF */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Viper/PERC3DiV) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Lexus/PERC3DiL) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Jaguar/PERC3DiJ) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Dagger/PERC3DiD) */
+	{ aac_rx_init, "percraid", "DELL    ", "PERCRAID        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* PERC 3/Di (Boxster/PERC3DiB) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "catapult        ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* catapult */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "tomcat          ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* tomcat */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2120S   ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2120S (Crusader) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan) */
+	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 2200S   ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Adaptec 2200S (Vulcan-2m) */
+	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S220     ", 1, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S220 (Legend Crusader) */
+	{ aac_rx_init, "aacraid",  "Legend  ", "Legend S230     ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend S230 (Legend Vulcan) */
 
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3230S   ", 2 }, /* Adaptec 3230S (Harrier) */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "Adaptec 3240S   ", 2 }, /* Adaptec 3240S (Tornado) */
@@ -224,8 +224,8 @@ static struct aac_driver_ident aac_drivers[] = {
 	{ aac_sa_init, "percraid", "DELL    ", "PERCRAID        ", 4, AAC_QUIRK_34SG }, /* Dell PERC2/QC */
 	{ aac_sa_init, "hpnraid",  "HP      ", "NetRAID         ", 4, AAC_QUIRK_34SG }, /* HP NetRAID-4M */
 
-	{ aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Dell Catchall */
-	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG }, /* Legend Catchall */
+	{ aac_rx_init, "aacraid",  "DELL    ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Dell Catchall */
+	{ aac_rx_init, "aacraid",  "Legend  ", "RAID            ", 2, AAC_QUIRK_31BIT | AAC_QUIRK_34SG | AAC_QUIRK_SCSI_32 }, /* Legend Catchall */
 	{ aac_rx_init, "aacraid",  "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Catch All */
 	{ aac_rkt_init, "aacraid", "ADAPTEC ", "RAID            ", 2 }, /* Adaptec Rocket Catch All */
 	{ aac_nark_init, "aacraid", "ADAPTEC ", "RAID            ", 2 } /* Adaptec NEMER/ARK Catch All */
@@ -239,7 +239,7 @@ static struct aac_driver_ident aac_drivers[] = {
  *	Queues a command for execution by the associated Host Adapter.
  *
  *	TODO: unify with aac_scsi_cmd().
- */ 
+ */
 
 static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
 {
@@ -258,7 +258,7 @@ static int aac_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd
 	}
 	cmd->SCp.phase = AAC_OWNER_LOWLEVEL;
 	return (aac_scsi_cmd(cmd) ? FAILED : 0);
-} 
+}
 
 /**
  *	aac_info		-	Returns the host adapter name
@@ -292,21 +292,21 @@ struct aac_driver_ident* aac_get_driver_ident(int devtype)
  *	@capacity: the sector capacity of the disk
  *	@geom: geometry block to fill in
  *
- *	Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.  
- *	The default disk geometry is 64 heads, 32 sectors, and the appropriate 
- *	number of cylinders so as not to exceed drive capacity.  In order for 
+ *	Return the Heads/Sectors/Cylinders BIOS Disk Parameters for Disk.
+ *	The default disk geometry is 64 heads, 32 sectors, and the appropriate
+ *	number of cylinders so as not to exceed drive capacity.  In order for
  *	disks equal to or larger than 1 GB to be addressable by the BIOS
- *	without exceeding the BIOS limitation of 1024 cylinders, Extended 
- *	Translation should be enabled.   With Extended Translation enabled, 
- *	drives between 1 GB inclusive and 2 GB exclusive are given a disk 
- *	geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive 
- *	are given a disk geometry of 255 heads and 63 sectors.  However, if 
- *	the BIOS detects that the Extended Translation setting does not match 
- *	the geometry in the partition table, then the translation inferred 
- *	from the partition table will be used by the BIOS, and a warning may 
+ *	without exceeding the BIOS limitation of 1024 cylinders, Extended
+ *	Translation should be enabled.   With Extended Translation enabled,
+ *	drives between 1 GB inclusive and 2 GB exclusive are given a disk
+ *	geometry of 128 heads and 32 sectors, and drives above 2 GB inclusive
+ *	are given a disk geometry of 255 heads and 63 sectors.  However, if
+ *	the BIOS detects that the Extended Translation setting does not match
+ *	the geometry in the partition table, then the translation inferred
+ *	from the partition table will be used by the BIOS, and a warning may
  *	be displayed.
  */
- 
+
 static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 			sector_t capacity, int *geom)
 {
@@ -333,10 +333,10 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 
 	param->cylinders = cap_to_cyls(capacity, param->heads * param->sectors);
 
-	/* 
+	/*
 	 *	Read the first 1024 bytes from the disk device, if the boot
 	 *	sector partition table is valid, search for a partition table
-	 *	entry whose end_head matches one of the standard geometry 
+	 *	entry whose end_head matches one of the standard geometry
 	 *	translations ( 64/32, 128/32, 255/63 ).
 	 */
 	buf = scsi_bios_ptable(bdev);
@@ -401,30 +401,44 @@ static int aac_biosparm(struct scsi_device *sdev, struct block_device *bdev,
 
 static int aac_slave_configure(struct scsi_device *sdev)
 {
+	struct aac_dev *aac = (struct aac_dev *)sdev->host->hostdata;
 	if ((sdev->type == TYPE_DISK) &&
-			(sdev_channel(sdev) != CONTAINER_CHANNEL)) {
+			(sdev_channel(sdev) != CONTAINER_CHANNEL) &&
+			(!aac->jbod || sdev->inq_periph_qual) &&
+			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))) {
 		if (expose_physicals == 0)
 			return -ENXIO;
-		if (expose_physicals < 0) {
-			struct aac_dev *aac =
-				(struct aac_dev *)sdev->host->hostdata;
-			if (!aac->raid_scsi_mode || (sdev_channel(sdev) != 2))
-				sdev->no_uld_attach = 1;
-		}
+		if (expose_physicals < 0)
+			sdev->no_uld_attach = 1;
 	}
 	if (sdev->tagged_supported && (sdev->type == TYPE_DISK) &&
-			(sdev_channel(sdev) == CONTAINER_CHANNEL)) {
+			(!aac->raid_scsi_mode || (sdev_channel(sdev) != 2)) &&
+			!sdev->no_uld_attach) {
 		struct scsi_device * dev;
 		struct Scsi_Host *host = sdev->host;
 		unsigned num_lsu = 0;
 		unsigned num_one = 0;
 		unsigned depth;
+		unsigned cid;
 
+		/*
+		 * Firmware has an individual device recovery time typically
+		 * of 35 seconds, give us a margin.
+		 */
+		if (sdev->timeout < (45 * HZ))
+			sdev->timeout = 45 * HZ;
+		for (cid = 0; cid < aac->maximum_num_containers; ++cid)
+			if (aac->fsa_dev[cid].valid)
+				++num_lsu;
 		__shost_for_each_device(dev, host) {
 			if (dev->tagged_supported && (dev->type == TYPE_DISK) &&
-				(sdev_channel(dev) == CONTAINER_CHANNEL))
-				++num_lsu;
-			else
+					(!aac->raid_scsi_mode ||
+						(sdev_channel(sdev) != 2)) &&
+					!dev->no_uld_attach) {
+				if ((sdev_channel(dev) != CONTAINER_CHANNEL)
+				 || !aac->fsa_dev[sdev_id(dev)].valid)
+					++num_lsu;
+			} else
 				++num_one;
 		}
 		if (num_lsu == 0)
@@ -481,9 +495,35 @@ static int aac_change_queue_depth(struct scsi_device *sdev, int depth)
 	return sdev->queue_depth;
 }
 
+static ssize_t aac_show_raid_level(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct scsi_device * sdev = to_scsi_device(dev);
+	if (sdev_channel(sdev) != CONTAINER_CHANNEL)
+		return snprintf(buf, PAGE_SIZE, sdev->no_uld_attach
+		  ? "Hidden\n" : "JBOD");
+	return snprintf(buf, PAGE_SIZE, "%s\n",
+	  get_container_type(((struct aac_dev *)(sdev->host->hostdata))
+	    ->fsa_dev[sdev_id(sdev)].type));
+}
+
+static struct device_attribute aac_raid_level_attr = {
+	.attr = {
+		.name = "level",
+		.mode = S_IRUGO,
+	},
+	.show = aac_show_raid_level
+};
+
+static struct device_attribute *aac_dev_attrs[] = {
+	&aac_raid_level_attr,
+	NULL,
+};
+
 static int aac_ioctl(struct scsi_device *sdev, int cmd, void __user * arg)
 {
 	struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata;
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
 	return aac_do_ioctl(dev, cmd, arg);
 }
 
@@ -506,17 +546,33 @@ static int aac_eh_abort(struct scsi_cmnd* cmd)
 			break;
 	case INQUIRY:
 	case READ_CAPACITY:
-	case TEST_UNIT_READY:
 		/* Mark associated FIB to not complete, eh handler does this */
 		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
 			struct fib * fib = &aac->fibs[count];
 			if (fib->hw_fib_va->header.XferState &&
+			  (fib->flags & FIB_CONTEXT_FLAG) &&
 			  (fib->callback_data == cmd)) {
 				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
 				cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
 				ret = SUCCESS;
 			}
 		}
+		break;
+	case TEST_UNIT_READY:
+		/* Mark associated FIB to not complete, eh handler does this */
+		for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
+			struct scsi_cmnd * command;
+			struct fib * fib = &aac->fibs[count];
+			if ((fib->hw_fib_va->header.XferState & cpu_to_le32(Async | NoResponseExpected)) &&
+			  (fib->flags & FIB_CONTEXT_FLAG) &&
+			  ((command = fib->callback_data)) &&
+			  (command->device == cmd->device)) {
+				fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
+				command->SCp.phase = AAC_OWNER_ERROR_HANDLER;
+				if (command == cmd)
+					ret = SUCCESS;
+			}
+		}
 	}
 	return ret;
 }
@@ -539,12 +595,13 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
 	for (count = 0; count < (host->can_queue + AAC_NUM_MGT_FIB); ++count) {
 		struct fib * fib = &aac->fibs[count];
 		if (fib->hw_fib_va->header.XferState &&
+		  (fib->flags & FIB_CONTEXT_FLAG) &&
 		  (fib->callback_data == cmd)) {
 			fib->flags |= FIB_CONTEXT_FLAG_TIMED_OUT;
 			cmd->SCp.phase = AAC_OWNER_ERROR_HANDLER;
 		}
 	}
-	printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n", 
+	printk(KERN_ERR "%s: Host adapter reset request. SCSI hang ?\n",
 					AAC_DRIVERNAME);
 
 	if ((count = aac_check_health(aac)))
@@ -584,8 +641,11 @@ static int aac_eh_reset(struct scsi_cmnd* cmd)
 	 * support a register, instead of a commanded, reset.
 	 */
 	if ((aac->supplement_adapter_info.SupportedOptions2 &
-	  le32_to_cpu(AAC_OPTION_MU_RESET|AAC_OPTION_IGNORE_RESET)) ==
-	  le32_to_cpu(AAC_OPTION_MU_RESET))
+	   AAC_OPTION_MU_RESET) &&
+	  aac_check_reset &&
+	  ((aac_check_reset != 1) ||
+	   (aac->supplement_adapter_info.SupportedOptions2 &
+	    AAC_OPTION_IGNORE_RESET)))
 		aac_reset_adapter(aac, 2); /* Bypass wait for command quiesce */
 	return SUCCESS; /* Cause an immediate retry of the command with a ten second delay after successful tur */
 }
@@ -632,8 +692,8 @@ static int aac_cfg_open(struct inode *inode, struct file *file)
  *	Bugs: Needs locking against parallel ioctls lower down
  *	Bugs: Needs to handle hot plugging
  */
- 
-static int aac_cfg_ioctl(struct inode *inode,  struct file *file,
+
+static int aac_cfg_ioctl(struct inode *inode, struct file *file,
 		unsigned int cmd, unsigned long arg)
 {
 	if (!capable(CAP_SYS_RAWIO))
@@ -646,7 +706,7 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
 {
 	long ret;
 	lock_kernel();
-	switch (cmd) { 
+	switch (cmd) {
 	case FSACTL_MINIPORT_REV_CHECK:
 	case FSACTL_SENDFIB:
 	case FSACTL_OPEN_GET_ADAPTER_FIB:
@@ -656,14 +716,14 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
 	case FSACTL_QUERY_DISK:
 	case FSACTL_DELETE_DISK:
 	case FSACTL_FORCE_DELETE_DISK:
-	case FSACTL_GET_CONTAINERS: 
+	case FSACTL_GET_CONTAINERS:
 	case FSACTL_SEND_LARGE_FIB:
 		ret = aac_do_ioctl(dev, cmd, (void __user *)arg);
 		break;
 
 	case FSACTL_GET_NEXT_ADAPTER_FIB: {
 		struct fib_ioctl __user *f;
-		
+
 		f = compat_alloc_user_space(sizeof(*f));
 		ret = 0;
 		if (clear_user(f, sizeof(*f)))
@@ -676,9 +736,9 @@ static long aac_compat_do_ioctl(struct aac_dev *dev, unsigned cmd, unsigned long
 	}
 
 	default:
-		ret = -ENOIOCTLCMD; 
+		ret = -ENOIOCTLCMD;
 		break;
-	} 
+	}
 	unlock_kernel();
 	return ret;
 }
@@ -735,6 +795,25 @@ static ssize_t aac_show_vendor(struct class_device *class_dev,
 	return len;
 }
 
+static ssize_t aac_show_flags(struct class_device *class_dev, char *buf)
+{
+	int len = 0;
+	struct aac_dev *dev = (struct aac_dev*)class_to_shost(class_dev)->hostdata;
+
+	if (nblank(dprintk(x)))
+		len = snprintf(buf, PAGE_SIZE, "dprintk\n");
+#ifdef AAC_DETAILED_STATUS_INFO
+	len += snprintf(buf + len, PAGE_SIZE - len,
+			"AAC_DETAILED_STATUS_INFO\n");
+#endif
+	if (dev->raw_io_interface && dev->raw_io_64)
+		len += snprintf(buf + len, PAGE_SIZE - len,
+				"SAI_READ_CAPACITY_16\n");
+	if (dev->jbod)
+		len += snprintf(buf + len, PAGE_SIZE - len, "SUPPORTED_JBOD\n");
+	return len;
+}
+
 static ssize_t aac_show_kernel_version(struct class_device *class_dev,
 		char *buf)
 {
@@ -742,7 +821,7 @@ static ssize_t aac_show_kernel_version(struct class_device *class_dev,
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.kernelrev);
-	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
 	  le32_to_cpu(dev->adapter_info.kernelbuild));
 	return len;
@@ -755,7 +834,7 @@ static ssize_t aac_show_monitor_version(struct class_device *class_dev,
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.monitorrev);
-	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
 	  le32_to_cpu(dev->adapter_info.monitorbuild));
 	return len;
@@ -768,7 +847,7 @@ static ssize_t aac_show_bios_version(struct class_device *class_dev,
 	int len, tmp;
 
 	tmp = le32_to_cpu(dev->adapter_info.biosrev);
-	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n", 
+	len = snprintf(buf, PAGE_SIZE, "%d.%d-%d[%d]\n",
 	  tmp >> 24, (tmp >> 16) & 0xff, tmp & 0xff,
 	  le32_to_cpu(dev->adapter_info.biosbuild));
 	return len;
@@ -844,6 +923,13 @@ static struct class_device_attribute aac_vendor = {
 	},
 	.show = aac_show_vendor,
 };
+static struct class_device_attribute aac_flags = {
+	.attr = {
+		.name = "flags",
+		.mode = S_IRUGO,
+	},
+	.show = aac_show_flags,
+};
 static struct class_device_attribute aac_kernel_version = {
 	.attr = {
 		.name = "hba_kernel_version",
@@ -898,6 +984,7 @@ static struct class_device_attribute aac_reset = {
 static struct class_device_attribute *aac_attrs[] = {
 	&aac_model,
 	&aac_vendor,
+	&aac_flags,
 	&aac_kernel_version,
 	&aac_monitor_version,
 	&aac_bios_version,
@@ -928,21 +1015,22 @@ static struct scsi_host_template aac_driver_template = {
 	.compat_ioctl			= aac_compat_ioctl,
 #endif
 	.queuecommand   		= aac_queuecommand,
-	.bios_param     		= aac_biosparm,	
+	.bios_param     		= aac_biosparm,
 	.shost_attrs			= aac_attrs,
 	.slave_configure		= aac_slave_configure,
 	.change_queue_depth		= aac_change_queue_depth,
+	.sdev_attrs			= aac_dev_attrs,
 	.eh_abort_handler		= aac_eh_abort,
 	.eh_host_reset_handler		= aac_eh_reset,
-	.can_queue      		= AAC_NUM_IO_FIB,	
+	.can_queue      		= AAC_NUM_IO_FIB,
 	.this_id        		= MAXIMUM_NUM_CONTAINERS,
 	.sg_tablesize   		= 16,
 	.max_sectors    		= 128,
 #if (AAC_NUM_IO_FIB > 256)
 	.cmd_per_lun			= 256,
-#else		
-	.cmd_per_lun    		= AAC_NUM_IO_FIB, 
-#endif	
+#else
+	.cmd_per_lun    		= AAC_NUM_IO_FIB,
+#endif
 	.use_clustering			= ENABLE_CLUSTERING,
 	.use_sg_chaining		= ENABLE_SG_CHAINING,
 	.emulated                       = 1,
@@ -979,18 +1067,18 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 		goto out;
 	error = -ENODEV;
 
-	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) || 
+	if (pci_set_dma_mask(pdev, DMA_32BIT_MASK) ||
 			pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))
 		goto out_disable_pdev;
 	/*
 	 * If the quirk31 bit is set, the adapter needs adapter
 	 * to driver communication memory to be allocated below 2gig
 	 */
-	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT) 
+	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
 		if (pci_set_dma_mask(pdev, DMA_31BIT_MASK) ||
 				pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK))
 			goto out_disable_pdev;
-	
+
 	pci_set_master(pdev);
 
 	shost = scsi_host_alloc(&aac_driver_template, sizeof(struct aac_dev));
@@ -1003,7 +1091,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	shost->max_cmd_len = 16;
 
 	aac = (struct aac_dev *)shost->hostdata;
-	aac->scsi_host_ptr = shost;	
+	aac->scsi_host_ptr = shost;
 	aac->pdev = pdev;
 	aac->name = aac_driver_template.name;
 	aac->id = shost->unique_id;
@@ -1040,7 +1128,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	if (aac_drivers[index].quirks & AAC_QUIRK_31BIT)
 		if (pci_set_dma_mask(pdev, DMA_32BIT_MASK))
 			goto out_deinit;
- 
+
 	aac->maximum_num_channels = aac_drivers[index].channels;
 	error = aac_get_adapter_info(aac);
 	if (error < 0)
@@ -1049,7 +1137,7 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	/*
  	 * Lets override negotiations and drop the maximum SG limit to 34
  	 */
- 	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) && 
+	if ((aac_drivers[index].quirks & AAC_QUIRK_34SG) &&
 			(aac->scsi_host_ptr->sg_tablesize > 34)) {
  		aac->scsi_host_ptr->sg_tablesize = 34;
  		aac->scsi_host_ptr->max_sectors
@@ -1066,17 +1154,17 @@ static int __devinit aac_probe_one(struct pci_dev *pdev,
 	/*
 	 * Firware printf works only with older firmware.
 	 */
-	if (aac_drivers[index].quirks & AAC_QUIRK_34SG) 
+	if (aac_drivers[index].quirks & AAC_QUIRK_34SG)
 		aac->printf_enabled = 1;
 	else
 		aac->printf_enabled = 0;
- 
+
  	/*
 	 * max channel will be the physical channels plus 1 virtual channel
 	 * all containers are on the virtual channel 0 (CONTAINER_CHANNEL)
 	 * physical channels are address by their actual physical number+1
 	 */
-	if ((aac->nondasd_support == 1) || expose_physicals)
+	if (aac->nondasd_support || expose_physicals || aac->jbod)
 		shost->max_channel = aac->maximum_num_channels;
 	else
 		shost->max_channel = 0;
@@ -1148,10 +1236,10 @@ static void __devexit aac_remove_one(struct pci_dev *pdev)
 	kfree(aac->queues);
 
 	aac_adapter_ioremap(aac, 0);
-	
+
 	kfree(aac->fibs);
 	kfree(aac->fsa_dev);
-	
+
 	list_del(&aac->entry);
 	scsi_host_put(shost);
 	pci_disable_device(pdev);
@@ -1172,7 +1260,7 @@ static struct pci_driver aac_pci_driver = {
 static int __init aac_init(void)
 {
 	int error;
-	
+
 	printk(KERN_INFO "Adaptec %s driver %s\n",
 	  AAC_DRIVERNAME, aac_driver_version);
 

drivers/scsi/aacraid/rx.c

@@ -465,7 +465,7 @@ static int aac_rx_restart_adapter(struct aac_dev *dev, int bled)
 	u32 var;
 
 	if (!(dev->supplement_adapter_info.SupportedOptions2 &
-	  le32_to_cpu(AAC_OPTION_MU_RESET)) || (bled >= 0) || (bled == -2)) {
+	  AAC_OPTION_MU_RESET) || (bled >= 0) || (bled == -2)) {
 		if (bled)
 			printk(KERN_ERR "%s%d: adapter kernel panic'd %x.\n",
 				dev->name, dev->id, bled);
@@ -549,7 +549,9 @@ int _aac_rx_init(struct aac_dev *dev)
 	dev->OIMR = status = rx_readb (dev, MUnit.OIMR);
 	if ((((status & 0x0c) != 0x0c) || aac_reset_devices || reset_devices) &&
 	  !aac_rx_restart_adapter(dev, 0))
-		++restart;
+		/* Make sure the Hardware FIFO is empty */
+		while ((++restart < 512) &&
+		  (rx_readl(dev, MUnit.OutboundQueue) != 0xFFFFFFFFL));
 	/*
 	 *	Check to see if the board panic'd while booting.
 	 */

drivers/scsi/advansys.c

@@ -8233,7 +8233,7 @@ static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp)
 			if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) {
 				ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
 				ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
-						  sizeof(scp->sense_buffer));
+						  SCSI_SENSE_BUFFERSIZE);
 				/*
 				 * Note: The 'status_byte()' macro used by
 				 * target drivers defined in scsi.h shifts the
@@ -9136,7 +9136,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep)
 	BUG_ON(asc_dvc_varp != &boardp->dvc_var.asc_dvc_var);
 
 	dma_unmap_single(boardp->dev, scp->SCp.dma_handle,
-			sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+			 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 	/*
 	 * 'qdonep' contains the command's ending status.
 	 */
@@ -9166,7 +9166,7 @@ static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep)
 			if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) {
 				ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n");
 				ASC_DBG_PRT_SENSE(2, scp->sense_buffer,
-						  sizeof(scp->sense_buffer));
+						  SCSI_SENSE_BUFFERSIZE);
 				/*
 				 * Note: The 'status_byte()' macro used by
 				 * target drivers defined in scsi.h shifts the
@@ -9881,9 +9881,9 @@ static __le32 advansys_get_sense_buffer_dma(struct scsi_cmnd *scp)
 {
 	struct asc_board *board = shost_priv(scp->device->host);
 	scp->SCp.dma_handle = dma_map_single(board->dev, scp->sense_buffer,
-				sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+					     SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 	dma_cache_sync(board->dev, scp->sense_buffer,
-				sizeof(scp->sense_buffer), DMA_FROM_DEVICE);
+		       SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE);
 	return cpu_to_le32(scp->SCp.dma_handle);
 }
 
@@ -9914,7 +9914,7 @@ static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
 	asc_scsi_q->q2.target_ix =
 	    ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun);
 	asc_scsi_q->q1.sense_addr = advansys_get_sense_buffer_dma(scp);
-	asc_scsi_q->q1.sense_len = sizeof(scp->sense_buffer);
+	asc_scsi_q->q1.sense_len = SCSI_SENSE_BUFFERSIZE;
 
 	/*
 	 * If there are any outstanding requests for the current target,
@@ -10173,7 +10173,7 @@ adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp,
 	scsiqp->target_lun = scp->device->lun;
 
 	scsiqp->sense_addr = cpu_to_le32(virt_to_bus(&scp->sense_buffer[0]));
-	scsiqp->sense_len = sizeof(scp->sense_buffer);
+	scsiqp->sense_len = SCSI_SENSE_BUFFERSIZE;
 
 	/* Build ADV_SCSI_REQ_Q */
 

drivers/scsi/aha152x.c

@@ -260,6 +260,7 @@
 #include <scsi/scsi_dbg.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport_spi.h>
+#include <scsi/scsi_eh.h>
 #include "aha152x.h"
 
 static LIST_HEAD(aha152x_host_list);
@@ -558,9 +559,7 @@ struct aha152x_hostdata {
 struct aha152x_scdata {
 	Scsi_Cmnd *next;	/* next sc in queue */
 	struct completion *done;/* semaphore to block on */
-	unsigned char aha_orig_cmd_len;
-	unsigned char aha_orig_cmnd[MAX_COMMAND_SIZE];
-	int aha_orig_resid;
+	struct scsi_eh_save ses;
 };
 
 /* access macros for hostdata */
@@ -1017,16 +1016,10 @@ static int aha152x_internal_queue(Scsi_Cmnd *SCpnt, struct completion *complete,
 	   SCp.buffers_residual : left buffers in list
 	   SCp.phase            : current state of the command */
 
-	if ((phase & (check_condition|resetting)) || !scsi_sglist(SCpnt)) {
-		if (phase & check_condition) {
-			SCpnt->SCp.ptr           = SCpnt->sense_buffer;
-			SCpnt->SCp.this_residual = sizeof(SCpnt->sense_buffer);
-			scsi_set_resid(SCpnt, sizeof(SCpnt->sense_buffer));
-		} else {
-			SCpnt->SCp.ptr           = NULL;
-			SCpnt->SCp.this_residual = 0;
-			scsi_set_resid(SCpnt, 0);
-		}
+	if ((phase & resetting) || !scsi_sglist(SCpnt)) {
+		SCpnt->SCp.ptr           = NULL;
+		SCpnt->SCp.this_residual = 0;
+		scsi_set_resid(SCpnt, 0);
 		SCpnt->SCp.buffer           = NULL;
 		SCpnt->SCp.buffers_residual = 0;
 	} else {
@@ -1561,10 +1554,7 @@ static void busfree_run(struct Scsi_Host *shpnt)
 			}
 #endif
 
-			/* restore old command */
-			memcpy(cmd->cmnd, sc->aha_orig_cmnd, sizeof(cmd->cmnd));
-			cmd->cmd_len = sc->aha_orig_cmd_len;
-			scsi_set_resid(cmd, sc->aha_orig_resid);
+			scsi_eh_restore_cmnd(cmd, &sc->ses);
 
 			cmd->SCp.Status = SAM_STAT_CHECK_CONDITION;
 
@@ -1587,22 +1577,10 @@ static void busfree_run(struct Scsi_Host *shpnt)
 				DPRINTK(debug_eh, ERR_LEAD "requesting sense\n", CMDINFO(ptr));
 #endif
 
-				/* save old command */
 				sc = SCDATA(ptr);
 				/* It was allocated in aha152x_internal_queue? */
 				BUG_ON(!sc);
-				memcpy(sc->aha_orig_cmnd, ptr->cmnd,
-				                            sizeof(ptr->cmnd));
-				sc->aha_orig_cmd_len = ptr->cmd_len;
-				sc->aha_orig_resid = scsi_get_resid(ptr);
-
-				ptr->cmnd[0]         = REQUEST_SENSE;
-				ptr->cmnd[1]         = 0;
-				ptr->cmnd[2]         = 0;
-				ptr->cmnd[3]         = 0;
-				ptr->cmnd[4]         = sizeof(ptr->sense_buffer);
-				ptr->cmnd[5]         = 0;
-				ptr->cmd_len         = 6;
+				scsi_eh_prep_cmnd(ptr, &sc->ses, NULL, 0, ~0);
 
 				DO_UNLOCK(flags);
 				aha152x_internal_queue(ptr, NULL, check_condition, ptr->scsi_done);

drivers/scsi/aha1542.c

@@ -51,15 +51,6 @@
 #define SCSI_BUF_PA(address)	isa_virt_to_bus(address)
 #define SCSI_SG_PA(sgent)	(isa_page_to_bus(sg_page((sgent))) + (sgent)->offset)
 
-static void BAD_DMA(void *address, unsigned int length)
-{
-	printk(KERN_CRIT "buf vaddress %p paddress 0x%lx length %d\n",
-	       address,
-	       SCSI_BUF_PA(address),
-	       length);
-	panic("Buffer at physical address > 16Mb used for aha1542");
-}
-
 static void BAD_SG_DMA(Scsi_Cmnd * SCpnt,
 		       struct scatterlist *sgp,
 		       int nseg,
@@ -545,7 +536,7 @@ static void aha1542_intr_handle(struct Scsi_Host *shost, void *dev_id)
 		   we will still have it in the cdb when we come back */
 		if (ccb[mbo].tarstat == 2)
 			memcpy(SCtmp->sense_buffer, &ccb[mbo].cdb[ccb[mbo].cdblen],
-			       sizeof(SCtmp->sense_buffer));
+			       SCSI_SENSE_BUFFERSIZE);
 
 
 		/* is there mail :-) */
@@ -597,8 +588,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 	unchar target = SCpnt->device->id;
 	unchar lun = SCpnt->device->lun;
 	unsigned long flags;
-	void *buff = SCpnt->request_buffer;
-	int bufflen = SCpnt->request_bufflen;
+	int bufflen = scsi_bufflen(SCpnt);
 	int mbo;
 	struct mailbox *mb;
 	struct ccb *ccb;
@@ -619,7 +609,7 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 #if 0
 		/* scsi_request_sense() provides a buffer of size 256,
 		   so there is no reason to expect equality */
-		if (bufflen != sizeof(SCpnt->sense_buffer))
+		if (bufflen != SCSI_SENSE_BUFFERSIZE)
 			printk(KERN_CRIT "aha1542: Wrong buffer length supplied "
 			       "for request sense (%d)\n", bufflen);
 #endif
@@ -689,42 +679,29 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 
 	memcpy(ccb[mbo].cdb, cmd, ccb[mbo].cdblen);
 
-	if (SCpnt->use_sg) {
+	if (bufflen) {
 		struct scatterlist *sg;
 		struct chain *cptr;
 #ifdef DEBUG
 		unsigned char *ptr;
 #endif
-		int i;
+		int i, sg_count = scsi_sg_count(SCpnt);
 		ccb[mbo].op = 2;	/* SCSI Initiator Command  w/scatter-gather */
-		SCpnt->host_scribble = kmalloc(512, GFP_KERNEL | GFP_DMA);
+		SCpnt->host_scribble = kmalloc(sizeof(*cptr)*sg_count,
+		                                         GFP_KERNEL | GFP_DMA);
 		cptr = (struct chain *) SCpnt->host_scribble;
 		if (cptr == NULL) {
 			/* free the claimed mailbox slot */
 			HOSTDATA(SCpnt->device->host)->SCint[mbo] = NULL;
 			return SCSI_MLQUEUE_HOST_BUSY;
 		}
-		scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
-			if (sg->length == 0 || SCpnt->use_sg > 16 ||
-			    (((int) sg->offset) & 1) || (sg->length & 1)) {
-				unsigned char *ptr;
-				printk(KERN_CRIT "Bad segment list supplied to aha1542.c (%d, %d)\n", SCpnt->use_sg, i);
-				scsi_for_each_sg(SCpnt, sg, SCpnt->use_sg, i) {
-					printk(KERN_CRIT "%d: %p %d\n", i,
-					       sg_virt(sg), sg->length);
-				};
-				printk(KERN_CRIT "cptr %x: ", (unsigned int) cptr);
-				ptr = (unsigned char *) &cptr[i];
-				for (i = 0; i < 18; i++)
-					printk("%02x ", ptr[i]);
-				panic("Foooooooood fight!");
-			};
+		scsi_for_each_sg(SCpnt, sg, sg_count, i) {
 			any2scsi(cptr[i].dataptr, SCSI_SG_PA(sg));
 			if (SCSI_SG_PA(sg) + sg->length - 1 > ISA_DMA_THRESHOLD)
-				BAD_SG_DMA(SCpnt, sg, SCpnt->use_sg, i);
+				BAD_SG_DMA(SCpnt, scsi_sglist(SCpnt), sg_count, i);
 			any2scsi(cptr[i].datalen, sg->length);
 		};
-		any2scsi(ccb[mbo].datalen, SCpnt->use_sg * sizeof(struct chain));
+		any2scsi(ccb[mbo].datalen, sg_count * sizeof(struct chain));
 		any2scsi(ccb[mbo].dataptr, SCSI_BUF_PA(cptr));
 #ifdef DEBUG
 		printk("cptr %x: ", cptr);
@@ -735,10 +712,8 @@ static int aha1542_queuecommand(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 	} else {
 		ccb[mbo].op = 0;	/* SCSI Initiator Command */
 		SCpnt->host_scribble = NULL;
-		any2scsi(ccb[mbo].datalen, bufflen);
-		if (buff && SCSI_BUF_PA(buff + bufflen - 1) > ISA_DMA_THRESHOLD)
-			BAD_DMA(buff, bufflen);
-		any2scsi(ccb[mbo].dataptr, SCSI_BUF_PA(buff));
+		any2scsi(ccb[mbo].datalen, 0);
+		any2scsi(ccb[mbo].dataptr, 0);
 	};
 	ccb[mbo].idlun = (target & 7) << 5 | direction | (lun & 7);	/*SCSI Target Id */
 	ccb[mbo].rsalen = 16;

drivers/scsi/aha1740.c

@@ -286,7 +286,7 @@ static irqreturn_t aha1740_intr_handle(int irq, void *dev_id)
 			   cdb when we come back */
 			if ( (adapstat & G2INTST_MASK) == G2INTST_CCBERROR ) {
 				memcpy(SCtmp->sense_buffer, ecbptr->sense, 
-				       sizeof(SCtmp->sense_buffer));
+				       SCSI_SENSE_BUFFERSIZE);
 				errstatus = aha1740_makecode(ecbptr->sense,ecbptr->status);
 			} else
 				errstatus = 0;

drivers/scsi/aic7xxx/Makefile

@@ -33,11 +33,10 @@ aic79xx-y					+= aic79xx_osm.o	\
 						   aic79xx_proc.o	\
 						   aic79xx_osm_pci.o
 
-EXTRA_CFLAGS += -Idrivers/scsi
+ccflags-y += -Idrivers/scsi
 ifdef WARNINGS_BECOME_ERRORS
-EXTRA_CFLAGS += -Werror
+ccflags-y += -Werror
 endif
-#EXTRA_CFLAGS += -g
 
 # Files generated that shall be removed upon make clean
 clean-files := aic7xxx_seq.h aic7xxx_reg.h aic7xxx_reg_print.c
@@ -46,53 +45,45 @@ clean-files += aic79xx_seq.h aic79xx_reg.h aic79xx_reg_print.c
 # Dependencies for generated files need to be listed explicitly
 
 $(obj)/aic7xxx_core.o: $(obj)/aic7xxx_seq.h
+$(obj)/aic7xxx_core.o: $(obj)/aic7xxx_reg.h
 $(obj)/aic79xx_core.o: $(obj)/aic79xx_seq.h
-$(obj)/aic79xx_reg_print.c: $(src)/aic79xx_reg_print.c_shipped
-$(obj)/aic7xxx_reg_print.c: $(src)/aic7xxx_reg_print.c_shipped
+$(obj)/aic79xx_core.o: $(obj)/aic79xx_reg.h
 
-$(addprefix $(obj)/,$(aic7xxx-y)): $(obj)/aic7xxx_reg.h
-$(addprefix $(obj)/,$(aic79xx-y)): $(obj)/aic79xx_reg.h
+$(addprefix $(obj)/,$(aic7xxx-y)): $(obj)/aic7xxx_seq.h
+$(addprefix $(obj)/,$(aic79xx-y)): $(obj)/aic79xx_seq.h
 
-aic7xxx-gen-$(CONFIG_AIC7XXX_BUILD_FIRMWARE)	:= $(obj)/aic7xxx_seq.h \
-						   $(obj)/aic7xxx_reg.h
+aic7xxx-gen-$(CONFIG_AIC7XXX_BUILD_FIRMWARE)	:= $(obj)/aic7xxx_reg.h
 aic7xxx-gen-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT)	+= $(obj)/aic7xxx_reg_print.c
 
 aicasm-7xxx-opts-$(CONFIG_AIC7XXX_REG_PRETTY_PRINT) := \
 	-p $(obj)/aic7xxx_reg_print.c -i aic7xxx_osm.h
 
 ifeq ($(CONFIG_AIC7XXX_BUILD_FIRMWARE),y)
-# Create a dependency chain in generated files
-# to avoid concurrent invocations of the single
-# rule that builds them all.
-aic7xxx_seq.h: aic7xxx_reg.h
-ifeq ($(CONFIG_AIC7XXX_REG_PRETTY_PRINT),y)
-aic7xxx_reg.h: aic7xxx_reg_print.c
-endif
-$(aic7xxx-gen-y): $(src)/aic7xxx.seq $(src)/aic7xxx.reg $(obj)/aicasm/aicasm
+$(obj)/aic7xxx_seq.h: $(src)/aic7xxx.seq $(src)/aic7xxx.reg $(obj)/aicasm/aicasm
 	$(obj)/aicasm/aicasm -I$(src) -r $(obj)/aic7xxx_reg.h \
 			      $(aicasm-7xxx-opts-y) -o $(obj)/aic7xxx_seq.h \
 			      $(src)/aic7xxx.seq
+
+$(aic7xxx-gen-y): $(obj)/aic7xxx_seq.h
+else
+$(obj)/aic7xxx_reg_print.c: $(src)/aic7xxx_reg_print.c_shipped
 endif
 
-aic79xx-gen-$(CONFIG_AIC79XX_BUILD_FIRMWARE)	:= $(obj)/aic79xx_seq.h \
-						   $(obj)/aic79xx_reg.h
+aic79xx-gen-$(CONFIG_AIC79XX_BUILD_FIRMWARE)	:= $(obj)/aic79xx_reg.h
 aic79xx-gen-$(CONFIG_AIC79XX_REG_PRETTY_PRINT)	+= $(obj)/aic79xx_reg_print.c
 
 aicasm-79xx-opts-$(CONFIG_AIC79XX_REG_PRETTY_PRINT) := \
 	-p $(obj)/aic79xx_reg_print.c -i aic79xx_osm.h
 
 ifeq ($(CONFIG_AIC79XX_BUILD_FIRMWARE),y)
-# Create a dependency chain in generated files
-# to avoid concurrent invocations of the single
-# rule that builds them all.
-aic79xx_seq.h: aic79xx_reg.h
-ifeq ($(CONFIG_AIC79XX_REG_PRETTY_PRINT),y)
-aic79xx_reg.h: aic79xx_reg_print.c
-endif
-$(aic79xx-gen-y): $(src)/aic79xx.seq $(src)/aic79xx.reg $(obj)/aicasm/aicasm
+$(obj)/aic79xx_seq.h: $(src)/aic79xx.seq $(src)/aic79xx.reg $(obj)/aicasm/aicasm
 	$(obj)/aicasm/aicasm -I$(src) -r $(obj)/aic79xx_reg.h \
 			      $(aicasm-79xx-opts-y) -o $(obj)/aic79xx_seq.h \
 			      $(src)/aic79xx.seq
+
+$(aic79xx-gen-y): $(obj)/aic79xx_seq.h
+else
+$(obj)/aic79xx_reg_print.c: $(src)/aic79xx_reg_print.c_shipped
 endif
 
 $(obj)/aicasm/aicasm: $(src)/aicasm/*.[chyl]

drivers/scsi/aic7xxx/aic79xx_osm.c

@@ -1784,7 +1784,7 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
 			if (scb->flags & SCB_SENSE) {
 				sense_size = min(sizeof(struct scsi_sense_data)
 					       - ahd_get_sense_residual(scb),
-						 (u_long)sizeof(cmd->sense_buffer));
+						 (u_long)SCSI_SENSE_BUFFERSIZE);
 				sense_offset = 0;
 			} else {
 				/*
@@ -1795,11 +1795,11 @@ ahd_linux_handle_scsi_status(struct ahd_softc *ahd,
 				    scb->sense_data;
 				sense_size = min_t(size_t,
 						scsi_4btoul(siu->sense_length),
-						sizeof(cmd->sense_buffer));
+						SCSI_SENSE_BUFFERSIZE);
 				sense_offset = SIU_SENSE_OFFSET(siu);
 			}
 
-			memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+			memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 			memcpy(cmd->sense_buffer,
 			       ahd_get_sense_buf(ahd, scb)
 			       + sense_offset, sense_size);

drivers/scsi/aic7xxx/aic7xxx_osm.c

@@ -1801,12 +1801,12 @@ ahc_linux_handle_scsi_status(struct ahc_softc *ahc,
 
 			sense_size = min(sizeof(struct scsi_sense_data)
 				       - ahc_get_sense_residual(scb),
-					 (u_long)sizeof(cmd->sense_buffer));
+					 (u_long)SCSI_SENSE_BUFFERSIZE);
 			memcpy(cmd->sense_buffer,
 			       ahc_get_sense_buf(ahc, scb), sense_size);
-			if (sense_size < sizeof(cmd->sense_buffer))
+			if (sense_size < SCSI_SENSE_BUFFERSIZE)
 				memset(&cmd->sense_buffer[sense_size], 0,
-				       sizeof(cmd->sense_buffer) - sense_size);
+				       SCSI_SENSE_BUFFERSIZE - sense_size);
 			cmd->result |= (DRIVER_SENSE << 24);
 #ifdef AHC_DEBUG
 			if (ahc_debug & AHC_SHOW_SENSE) {

drivers/scsi/aic7xxx_old.c

@@ -2696,7 +2696,7 @@ aic7xxx_done(struct aic7xxx_host *p, struct aic7xxx_scb *scb)
   {
     pci_unmap_single(p->pdev,
                      le32_to_cpu(scb->sg_list[0].address),
-                     sizeof(cmd->sense_buffer),
+                     SCSI_SENSE_BUFFERSIZE,
                      PCI_DMA_FROMDEVICE);
   }
   if (scb->flags & SCB_RECOVERY_SCB)
@@ -4267,13 +4267,13 @@ aic7xxx_handle_seqint(struct aic7xxx_host *p, unsigned char intstat)
                        sizeof(generic_sense));
 
                 scb->sense_cmd[1] = (cmd->device->lun << 5);
-                scb->sense_cmd[4] = sizeof(cmd->sense_buffer);
+                scb->sense_cmd[4] = SCSI_SENSE_BUFFERSIZE;
 
                 scb->sg_list[0].length = 
-                  cpu_to_le32(sizeof(cmd->sense_buffer));
+                  cpu_to_le32(SCSI_SENSE_BUFFERSIZE);
 		scb->sg_list[0].address =
                         cpu_to_le32(pci_map_single(p->pdev, cmd->sense_buffer,
-                                                   sizeof(cmd->sense_buffer),
+                                                   SCSI_SENSE_BUFFERSIZE,
                                                    PCI_DMA_FROMDEVICE));
 
                 /*
@@ -4296,7 +4296,7 @@ aic7xxx_handle_seqint(struct aic7xxx_host *p, unsigned char intstat)
                 hscb->residual_data_count[2] = 0;
 
                 scb->sg_count = hscb->SG_segment_count = 1;
-                scb->sg_length = sizeof(cmd->sense_buffer);
+                scb->sg_length = SCSI_SENSE_BUFFERSIZE;
                 scb->tag_action = 0;
                 scb->flags |= SCB_SENSE;
                 /*
@@ -10293,7 +10293,6 @@ static int aic7xxx_queue(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
   aic7xxx_position(cmd) = scb->hscb->tag;
   cmd->scsi_done = fn;
   cmd->result = DID_OK;
-  memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
   aic7xxx_error(cmd) = DID_OK;
   aic7xxx_status(cmd) = 0;
   cmd->host_scribble = NULL;

drivers/scsi/aic94xx/aic94xx_dev.c

@@ -165,7 +165,7 @@ static int asd_init_target_ddb(struct domain_device *dev)
 	if (dev->port->oob_mode != SATA_OOB_MODE) {
 		flags |= OPEN_REQUIRED;
 		if ((dev->dev_type == SATA_DEV) ||
-		    (dev->tproto & SAS_PROTO_STP)) {
+		    (dev->tproto & SAS_PROTOCOL_STP)) {
 			struct smp_resp *rps_resp = &dev->sata_dev.rps_resp;
 			if (rps_resp->frame_type == SMP_RESPONSE &&
 			    rps_resp->function == SMP_REPORT_PHY_SATA &&
@@ -193,7 +193,7 @@ static int asd_init_target_ddb(struct domain_device *dev)
 	asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS, flags);
 
 	flags = 0;
-	if (dev->tproto & SAS_PROTO_STP)
+	if (dev->tproto & SAS_PROTOCOL_STP)
 		flags |= STP_CL_POL_NO_TX;
 	asd_ddbsite_write_byte(asd_ha, ddb, DDB_TARG_FLAGS2, flags);
 
@@ -201,7 +201,7 @@ static int asd_init_target_ddb(struct domain_device *dev)
 	asd_ddbsite_write_word(asd_ha, ddb, SEND_QUEUE_TAIL, 0xFFFF);
 	asd_ddbsite_write_word(asd_ha, ddb, SISTER_DDB, 0xFFFF);
 
-	if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTO_STP)) {
+	if (dev->dev_type == SATA_DEV || (dev->tproto & SAS_PROTOCOL_STP)) {
 		i = asd_init_sata(dev);
 		if (i < 0) {
 			asd_free_ddb(asd_ha, ddb);

drivers/scsi/aic94xx/aic94xx_dump.c

@@ -903,11 +903,11 @@ void asd_dump_frame_rcvd(struct asd_phy *phy,
 	int i;
 
 	switch ((dl->status_block[1] & 0x70) >> 3) {
-	case SAS_PROTO_STP:
+	case SAS_PROTOCOL_STP:
 		ASD_DPRINTK("STP proto device-to-host FIS:\n");
 		break;
 	default:
-	case SAS_PROTO_SSP:
+	case SAS_PROTOCOL_SSP:
 		ASD_DPRINTK("SAS proto IDENTIFY:\n");
 		break;
 	}

drivers/scsi/aic94xx/aic94xx_hwi.c

@@ -91,7 +91,7 @@ static int asd_init_phy(struct asd_phy *phy)
 
 	sas_phy->enabled = 1;
 	sas_phy->class = SAS;
-	sas_phy->iproto = SAS_PROTO_ALL;
+	sas_phy->iproto = SAS_PROTOCOL_ALL;
 	sas_phy->tproto = 0;
 	sas_phy->type = PHY_TYPE_PHYSICAL;
 	sas_phy->role = PHY_ROLE_INITIATOR;

drivers/scsi/aic94xx/aic94xx_hwi.h

@@ -72,6 +72,7 @@ struct flash_struct {
 	u8     manuf;
 	u8     dev_id;
 	u8     sec_prot;
+	u8     method;
 
 	u32    dir_offs;
 };
@@ -216,6 +217,8 @@ struct asd_ha_struct {
 	struct dma_pool  *scb_pool;
 
 	struct asd_seq_data  seq; /* sequencer related */
+	u32    bios_status;
+	const struct firmware *bios_image;
 };
 
 /* ---------- Common macros ---------- */

drivers/scsi/aic94xx/aic94xx_init.c

@@ -29,6 +29,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/delay.h>
+#include <linux/firmware.h>
 
 #include <scsi/scsi_host.h>
 
@@ -36,6 +37,7 @@
 #include "aic94xx_reg.h"
 #include "aic94xx_hwi.h"
 #include "aic94xx_seq.h"
+#include "aic94xx_sds.h"
 
 /* The format is "version.release.patchlevel" */
 #define ASD_DRIVER_VERSION "1.0.3"
@@ -134,7 +136,7 @@ Err:
 	return err;
 }
 
-static void __devexit asd_unmap_memio(struct asd_ha_struct *asd_ha)
+static void asd_unmap_memio(struct asd_ha_struct *asd_ha)
 {
 	struct asd_ha_addrspace *io_handle;
 
@@ -171,7 +173,7 @@ static int __devinit asd_map_ioport(struct asd_ha_struct *asd_ha)
 	return err;
 }
 
-static void __devexit asd_unmap_ioport(struct asd_ha_struct *asd_ha)
+static void asd_unmap_ioport(struct asd_ha_struct *asd_ha)
 {
 	pci_release_region(asd_ha->pcidev, PCI_IOBAR_OFFSET);
 }
@@ -208,7 +210,7 @@ Err:
 	return err;
 }
 
-static void __devexit asd_unmap_ha(struct asd_ha_struct *asd_ha)
+static void asd_unmap_ha(struct asd_ha_struct *asd_ha)
 {
 	if (asd_ha->iospace)
 		asd_unmap_ioport(asd_ha);
@@ -313,6 +315,181 @@ static ssize_t asd_show_dev_pcba_sn(struct device *dev,
 }
 static DEVICE_ATTR(pcba_sn, S_IRUGO, asd_show_dev_pcba_sn, NULL);
 
+#define FLASH_CMD_NONE      0x00
+#define FLASH_CMD_UPDATE    0x01
+#define FLASH_CMD_VERIFY    0x02
+
+struct flash_command {
+     u8      command[8];
+     int     code;
+};
+
+static struct flash_command flash_command_table[] =
+{
+     {"verify",      FLASH_CMD_VERIFY},
+     {"update",      FLASH_CMD_UPDATE},
+     {"",            FLASH_CMD_NONE}      /* Last entry should be NULL. */
+};
+
+struct error_bios {
+     char    *reason;
+     int     err_code;
+};
+
+static struct error_bios flash_error_table[] =
+{
+     {"Failed to open bios image file",      FAIL_OPEN_BIOS_FILE},
+     {"PCI ID mismatch",                     FAIL_CHECK_PCI_ID},
+     {"Checksum mismatch",                   FAIL_CHECK_SUM},
+     {"Unknown Error",                       FAIL_UNKNOWN},
+     {"Failed to verify.",                   FAIL_VERIFY},
+     {"Failed to reset flash chip.",         FAIL_RESET_FLASH},
+     {"Failed to find flash chip type.",     FAIL_FIND_FLASH_ID},
+     {"Failed to erash flash chip.",         FAIL_ERASE_FLASH},
+     {"Failed to program flash chip.",       FAIL_WRITE_FLASH},
+     {"Flash in progress",                   FLASH_IN_PROGRESS},
+     {"Image file size Error",               FAIL_FILE_SIZE},
+     {"Input parameter error",               FAIL_PARAMETERS},
+     {"Out of memory",                       FAIL_OUT_MEMORY},
+     {"OK", 0}	/* Last entry err_code = 0. */
+};
+
+static ssize_t asd_store_update_bios(struct device *dev,
+	struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
+	char *cmd_ptr, *filename_ptr;
+	struct bios_file_header header, *hdr_ptr;
+	int res, i;
+	u32 csum = 0;
+	int flash_command = FLASH_CMD_NONE;
+	int err = 0;
+
+	cmd_ptr = kzalloc(count*2, GFP_KERNEL);
+
+	if (!cmd_ptr) {
+		err = FAIL_OUT_MEMORY;
+		goto out;
+	}
+
+	filename_ptr = cmd_ptr + count;
+	res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
+	if (res != 2) {
+		err = FAIL_PARAMETERS;
+		goto out1;
+	}
+
+	for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
+		if (!memcmp(flash_command_table[i].command,
+				 cmd_ptr, strlen(cmd_ptr))) {
+			flash_command = flash_command_table[i].code;
+			break;
+		}
+	}
+	if (flash_command == FLASH_CMD_NONE) {
+		err = FAIL_PARAMETERS;
+		goto out1;
+	}
+
+	if (asd_ha->bios_status == FLASH_IN_PROGRESS) {
+		err = FLASH_IN_PROGRESS;
+		goto out1;
+	}
+	err = request_firmware(&asd_ha->bios_image,
+				   filename_ptr,
+				   &asd_ha->pcidev->dev);
+	if (err) {
+		asd_printk("Failed to load bios image file %s, error %d\n",
+			   filename_ptr, err);
+		err = FAIL_OPEN_BIOS_FILE;
+		goto out1;
+	}
+
+	hdr_ptr = (struct bios_file_header *)asd_ha->bios_image->data;
+
+	if ((hdr_ptr->contrl_id.vendor != asd_ha->pcidev->vendor ||
+		hdr_ptr->contrl_id.device != asd_ha->pcidev->device) &&
+		(hdr_ptr->contrl_id.sub_vendor != asd_ha->pcidev->vendor ||
+		hdr_ptr->contrl_id.sub_device != asd_ha->pcidev->device)) {
+
+		ASD_DPRINTK("The PCI vendor or device id does not match\n");
+		ASD_DPRINTK("vendor=%x dev=%x sub_vendor=%x sub_dev=%x"
+		" pci vendor=%x pci dev=%x\n",
+		hdr_ptr->contrl_id.vendor,
+		hdr_ptr->contrl_id.device,
+		hdr_ptr->contrl_id.sub_vendor,
+		hdr_ptr->contrl_id.sub_device,
+		asd_ha->pcidev->vendor,
+		asd_ha->pcidev->device);
+		err = FAIL_CHECK_PCI_ID;
+		goto out2;
+	}
+
+	if (hdr_ptr->filelen != asd_ha->bios_image->size) {
+		err = FAIL_FILE_SIZE;
+		goto out2;
+	}
+
+	/* calculate checksum */
+	for (i = 0; i < hdr_ptr->filelen; i++)
+		csum += asd_ha->bios_image->data[i];
+
+	if ((csum & 0x0000ffff) != hdr_ptr->checksum) {
+		ASD_DPRINTK("BIOS file checksum mismatch\n");
+		err = FAIL_CHECK_SUM;
+		goto out2;
+	}
+	if (flash_command == FLASH_CMD_UPDATE) {
+		asd_ha->bios_status = FLASH_IN_PROGRESS;
+		err = asd_write_flash_seg(asd_ha,
+			&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
+			0, hdr_ptr->filelen-sizeof(*hdr_ptr));
+		if (!err)
+			err = asd_verify_flash_seg(asd_ha,
+				&asd_ha->bios_image->data[sizeof(*hdr_ptr)],
+				0, hdr_ptr->filelen-sizeof(*hdr_ptr));
+	} else {
+		asd_ha->bios_status = FLASH_IN_PROGRESS;
+		err = asd_verify_flash_seg(asd_ha,
+			&asd_ha->bios_image->data[sizeof(header)],
+			0, hdr_ptr->filelen-sizeof(header));
+	}
+
+out2:
+	release_firmware(asd_ha->bios_image);
+out1:
+	kfree(cmd_ptr);
+out:
+	asd_ha->bios_status = err;
+
+	if (!err)
+		return count;
+	else
+		return -err;
+}
+
+static ssize_t asd_show_update_bios(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	int i;
+	struct asd_ha_struct *asd_ha = dev_to_asd_ha(dev);
+
+	for (i = 0; flash_error_table[i].err_code != 0; i++) {
+		if (flash_error_table[i].err_code == asd_ha->bios_status)
+			break;
+	}
+	if (asd_ha->bios_status != FLASH_IN_PROGRESS)
+		asd_ha->bios_status = FLASH_OK;
+
+	return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
+			flash_error_table[i].err_code,
+			flash_error_table[i].reason);
+}
+
+static DEVICE_ATTR(update_bios, S_IRUGO|S_IWUGO,
+	asd_show_update_bios, asd_store_update_bios);
+
 static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 {
 	int err;
@@ -328,9 +505,14 @@ static int asd_create_dev_attrs(struct asd_ha_struct *asd_ha)
 	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 	if (err)
 		goto err_biosb;
+	err = device_create_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
+	if (err)
+		goto err_update_bios;
 
 	return 0;
 
+err_update_bios:
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
 err_biosb:
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 err_rev:
@@ -343,6 +525,7 @@ static void asd_remove_dev_attrs(struct asd_ha_struct *asd_ha)
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_revision);
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_bios_build);
 	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_pcba_sn);
+	device_remove_file(&asd_ha->pcidev->dev, &dev_attr_update_bios);
 }
 
 /* The first entry, 0, is used for dynamic ids, the rest for devices
@@ -589,6 +772,7 @@ static int __devinit asd_pci_probe(struct pci_dev *dev,
 	asd_ha->sas_ha.dev = &asd_ha->pcidev->dev;
 	asd_ha->sas_ha.lldd_ha = asd_ha;
 
+	asd_ha->bios_status = FLASH_OK;
 	asd_ha->name = asd_dev->name;
 	asd_printk("found %s, device %s\n", asd_ha->name, pci_name(dev));
 

drivers/scsi/aic94xx/aic94xx_scb.c

@@ -788,12 +788,12 @@ void asd_build_control_phy(struct asd_ascb *ascb, int phy_id, u8 subfunc)
 
 		/* initiator port settings are in the hi nibble */
 		if (phy->sas_phy.role == PHY_ROLE_INITIATOR)
-			control_phy->port_type = SAS_PROTO_ALL << 4;
+			control_phy->port_type = SAS_PROTOCOL_ALL << 4;
 		else if (phy->sas_phy.role == PHY_ROLE_TARGET)
-			control_phy->port_type = SAS_PROTO_ALL;
+			control_phy->port_type = SAS_PROTOCOL_ALL;
 		else
 			control_phy->port_type =
-				(SAS_PROTO_ALL << 4) | SAS_PROTO_ALL;
+				(SAS_PROTOCOL_ALL << 4) | SAS_PROTOCOL_ALL;
 
 		/* link reset retries, this should be nominal */
 		control_phy->link_reset_retries = 10;

drivers/scsi/aic94xx/aic94xx_sds.c

@@ -30,6 +30,7 @@
 
 #include "aic94xx.h"
 #include "aic94xx_reg.h"
+#include "aic94xx_sds.h"
 
 /* ---------- OCM stuff ---------- */
 
@@ -1083,3 +1084,391 @@ out:
 	kfree(flash_dir);
 	return err;
 }
+
+/**
+ * asd_verify_flash_seg - verify data with flash memory
+ * @asd_ha: pointer to the host adapter structure
+ * @src: pointer to the source data to be verified
+ * @dest_offset: offset from flash memory
+ * @bytes_to_verify: total bytes to verify
+ */
+int asd_verify_flash_seg(struct asd_ha_struct *asd_ha,
+		void *src, u32 dest_offset, u32 bytes_to_verify)
+{
+	u8 *src_buf;
+	u8 flash_char;
+	int err;
+	u32 nv_offset, reg, i;
+
+	reg = asd_ha->hw_prof.flash.bar;
+	src_buf = NULL;
+
+	err = FLASH_OK;
+	nv_offset = dest_offset;
+	src_buf = (u8 *)src;
+	for (i = 0; i < bytes_to_verify; i++) {
+		flash_char = asd_read_reg_byte(asd_ha, reg + nv_offset + i);
+		if (flash_char != src_buf[i]) {
+			err = FAIL_VERIFY;
+			break;
+		}
+	}
+	return err;
+}
+
+/**
+ * asd_write_flash_seg - write data into flash memory
+ * @asd_ha: pointer to the host adapter structure
+ * @src: pointer to the source data to be written
+ * @dest_offset: offset from flash memory
+ * @bytes_to_write: total bytes to write
+ */
+int asd_write_flash_seg(struct asd_ha_struct *asd_ha,
+		void *src, u32 dest_offset, u32 bytes_to_write)
+{
+	u8 *src_buf;
+	u32 nv_offset, reg, i;
+	int err;
+
+	reg = asd_ha->hw_prof.flash.bar;
+	src_buf = NULL;
+
+	err = asd_check_flash_type(asd_ha);
+	if (err) {
+		ASD_DPRINTK("couldn't find the type of flash. err=%d\n", err);
+		return err;
+	}
+
+	nv_offset = dest_offset;
+	err = asd_erase_nv_sector(asd_ha, nv_offset, bytes_to_write);
+	if (err) {
+		ASD_DPRINTK("Erase failed at offset:0x%x\n",
+			nv_offset);
+		return err;
+	}
+
+	err = asd_reset_flash(asd_ha);
+	if (err) {
+		ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+		return err;
+	}
+
+	src_buf = (u8 *)src;
+	for (i = 0; i < bytes_to_write; i++) {
+		/* Setup program command sequence */
+		switch (asd_ha->hw_prof.flash.method) {
+		case FLASH_METHOD_A:
+		{
+			asd_write_reg_byte(asd_ha,
+					(reg + 0xAAA), 0xAA);
+			asd_write_reg_byte(asd_ha,
+					(reg + 0x555), 0x55);
+			asd_write_reg_byte(asd_ha,
+					(reg + 0xAAA), 0xA0);
+			asd_write_reg_byte(asd_ha,
+					(reg + nv_offset + i),
+					(*(src_buf + i)));
+			break;
+		}
+		case FLASH_METHOD_B:
+		{
+			asd_write_reg_byte(asd_ha,
+					(reg + 0x555), 0xAA);
+			asd_write_reg_byte(asd_ha,
+					(reg + 0x2AA), 0x55);
+			asd_write_reg_byte(asd_ha,
+					(reg + 0x555), 0xA0);
+			asd_write_reg_byte(asd_ha,
+					(reg + nv_offset + i),
+					(*(src_buf + i)));
+			break;
+		}
+		default:
+			break;
+		}
+		if (asd_chk_write_status(asd_ha,
+				(nv_offset + i), 0) != 0) {
+			ASD_DPRINTK("aicx: Write failed at offset:0x%x\n",
+				reg + nv_offset + i);
+			return FAIL_WRITE_FLASH;
+		}
+	}
+
+	err = asd_reset_flash(asd_ha);
+	if (err) {
+		ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+		return err;
+	}
+	return 0;
+}
+
+int asd_chk_write_status(struct asd_ha_struct *asd_ha,
+	 u32 sector_addr, u8 erase_flag)
+{
+	u32 reg;
+	u32 loop_cnt;
+	u8  nv_data1, nv_data2;
+	u8  toggle_bit1;
+
+	/*
+	 * Read from DQ2 requires sector address
+	 * while it's dont care for DQ6
+	 */
+	reg = asd_ha->hw_prof.flash.bar;
+
+	for (loop_cnt = 0; loop_cnt < 50000; loop_cnt++) {
+		nv_data1 = asd_read_reg_byte(asd_ha, reg);
+		nv_data2 = asd_read_reg_byte(asd_ha, reg);
+
+		toggle_bit1 = ((nv_data1 & FLASH_STATUS_BIT_MASK_DQ6)
+				 ^ (nv_data2 & FLASH_STATUS_BIT_MASK_DQ6));
+
+		if (toggle_bit1 == 0) {
+			return 0;
+		} else {
+			if (nv_data2 & FLASH_STATUS_BIT_MASK_DQ5) {
+				nv_data1 = asd_read_reg_byte(asd_ha,
+								reg);
+				nv_data2 = asd_read_reg_byte(asd_ha,
+								reg);
+				toggle_bit1 =
+				((nv_data1 & FLASH_STATUS_BIT_MASK_DQ6)
+				^ (nv_data2 & FLASH_STATUS_BIT_MASK_DQ6));
+
+				if (toggle_bit1 == 0)
+					return 0;
+			}
+		}
+
+		/*
+		 * ERASE is a sector-by-sector operation and requires
+		 * more time to finish while WRITE is byte-byte-byte
+		 * operation and takes lesser time to finish.
+		 *
+		 * For some strange reason a reduced ERASE delay gives different
+		 * behaviour across different spirit boards. Hence we set
+		 * a optimum balance of 50mus for ERASE which works well
+		 * across all boards.
+		 */
+		if (erase_flag) {
+			udelay(FLASH_STATUS_ERASE_DELAY_COUNT);
+		} else {
+			udelay(FLASH_STATUS_WRITE_DELAY_COUNT);
+		}
+	}
+	return -1;
+}
+
+/**
+ * asd_hwi_erase_nv_sector - Erase the flash memory sectors.
+ * @asd_ha: pointer to the host adapter structure
+ * @flash_addr: pointer to offset from flash memory
+ * @size: total bytes to erase.
+ */
+int asd_erase_nv_sector(struct asd_ha_struct *asd_ha, u32 flash_addr, u32 size)
+{
+	u32 reg;
+	u32 sector_addr;
+
+	reg = asd_ha->hw_prof.flash.bar;
+
+	/* sector staring address */
+	sector_addr = flash_addr & FLASH_SECTOR_SIZE_MASK;
+
+	/*
+	 * Erasing an flash sector needs to be done in six consecutive
+	 * write cyles.
+	 */
+	while (sector_addr < flash_addr+size) {
+		switch (asd_ha->hw_prof.flash.method) {
+		case FLASH_METHOD_A:
+			asd_write_reg_byte(asd_ha, (reg + 0xAAA), 0xAA);
+			asd_write_reg_byte(asd_ha, (reg + 0x555), 0x55);
+			asd_write_reg_byte(asd_ha, (reg + 0xAAA), 0x80);
+			asd_write_reg_byte(asd_ha, (reg + 0xAAA), 0xAA);
+			asd_write_reg_byte(asd_ha, (reg + 0x555), 0x55);
+			asd_write_reg_byte(asd_ha, (reg + sector_addr), 0x30);
+			break;
+		case FLASH_METHOD_B:
+			asd_write_reg_byte(asd_ha, (reg + 0x555), 0xAA);
+			asd_write_reg_byte(asd_ha, (reg + 0x2AA), 0x55);
+			asd_write_reg_byte(asd_ha, (reg + 0x555), 0x80);
+			asd_write_reg_byte(asd_ha, (reg + 0x555), 0xAA);
+			asd_write_reg_byte(asd_ha, (reg + 0x2AA), 0x55);
+			asd_write_reg_byte(asd_ha, (reg + sector_addr), 0x30);
+			break;
+		default:
+			break;
+		}
+
+		if (asd_chk_write_status(asd_ha, sector_addr, 1) != 0)
+			return FAIL_ERASE_FLASH;
+
+		sector_addr += FLASH_SECTOR_SIZE;
+	}
+
+	return 0;
+}
+
+int asd_check_flash_type(struct asd_ha_struct *asd_ha)
+{
+	u8 manuf_id;
+	u8 dev_id;
+	u8 sec_prot;
+	u32 inc;
+	u32 reg;
+	int err;
+
+	/* get Flash memory base address */
+	reg = asd_ha->hw_prof.flash.bar;
+
+	/* Determine flash info */
+	err = asd_reset_flash(asd_ha);
+	if (err) {
+		ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+		return err;
+	}
+
+	asd_ha->hw_prof.flash.method = FLASH_METHOD_UNKNOWN;
+	asd_ha->hw_prof.flash.manuf = FLASH_MANUF_ID_UNKNOWN;
+	asd_ha->hw_prof.flash.dev_id = FLASH_DEV_ID_UNKNOWN;
+
+	/* Get flash info. This would most likely be AMD Am29LV family flash.
+	 * First try the sequence for word mode.  It is the same as for
+	 * 008B (byte mode only), 160B (word mode) and 800D (word mode).
+	 */
+	inc = asd_ha->hw_prof.flash.wide ? 2 : 1;
+	asd_write_reg_byte(asd_ha, reg + 0xAAA, 0xAA);
+	asd_write_reg_byte(asd_ha, reg + 0x555, 0x55);
+	asd_write_reg_byte(asd_ha, reg + 0xAAA, 0x90);
+	manuf_id = asd_read_reg_byte(asd_ha, reg);
+	dev_id = asd_read_reg_byte(asd_ha, reg + inc);
+	sec_prot = asd_read_reg_byte(asd_ha, reg + inc + inc);
+	/* Get out of autoselect mode. */
+	err = asd_reset_flash(asd_ha);
+	if (err) {
+		ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+		return err;
+	}
+	ASD_DPRINTK("Flash MethodA manuf_id(0x%x) dev_id(0x%x) "
+		"sec_prot(0x%x)\n", manuf_id, dev_id, sec_prot);
+	err = asd_reset_flash(asd_ha);
+	if (err != 0)
+		return err;
+
+	switch (manuf_id) {
+	case FLASH_MANUF_ID_AMD:
+		switch (sec_prot) {
+		case FLASH_DEV_ID_AM29LV800DT:
+		case FLASH_DEV_ID_AM29LV640MT:
+		case FLASH_DEV_ID_AM29F800B:
+			asd_ha->hw_prof.flash.method = FLASH_METHOD_A;
+			break;
+		default:
+			break;
+		}
+		break;
+	case FLASH_MANUF_ID_ST:
+		switch (sec_prot) {
+		case FLASH_DEV_ID_STM29W800DT:
+		case FLASH_DEV_ID_STM29LV640:
+			asd_ha->hw_prof.flash.method = FLASH_METHOD_A;
+			break;
+		default:
+			break;
+		}
+		break;
+	case FLASH_MANUF_ID_FUJITSU:
+		switch (sec_prot) {
+		case FLASH_DEV_ID_MBM29LV800TE:
+		case FLASH_DEV_ID_MBM29DL800TA:
+			asd_ha->hw_prof.flash.method = FLASH_METHOD_A;
+			break;
+		}
+		break;
+	case FLASH_MANUF_ID_MACRONIX:
+		switch (sec_prot) {
+		case FLASH_DEV_ID_MX29LV800BT:
+			asd_ha->hw_prof.flash.method = FLASH_METHOD_A;
+			break;
+		}
+		break;
+	}
+
+	if (asd_ha->hw_prof.flash.method == FLASH_METHOD_UNKNOWN) {
+		err = asd_reset_flash(asd_ha);
+		if (err) {
+			ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+			return err;
+		}
+
+		/* Issue Unlock sequence for AM29LV008BT */
+		asd_write_reg_byte(asd_ha, (reg + 0x555), 0xAA);
+		asd_write_reg_byte(asd_ha, (reg + 0x2AA), 0x55);
+		asd_write_reg_byte(asd_ha, (reg + 0x555), 0x90);
+		manuf_id = asd_read_reg_byte(asd_ha, reg);
+		dev_id = asd_read_reg_byte(asd_ha, reg + inc);
+		sec_prot = asd_read_reg_byte(asd_ha, reg + inc + inc);
+
+		ASD_DPRINTK("Flash MethodB manuf_id(0x%x) dev_id(0x%x) sec_prot"
+			"(0x%x)\n", manuf_id, dev_id, sec_prot);
+
+		err = asd_reset_flash(asd_ha);
+		if (err != 0) {
+			ASD_DPRINTK("couldn't reset flash. err=%d\n", err);
+			return err;
+		}
+
+		switch (manuf_id) {
+		case FLASH_MANUF_ID_AMD:
+			switch (dev_id) {
+			case FLASH_DEV_ID_AM29LV008BT:
+				asd_ha->hw_prof.flash.method = FLASH_METHOD_B;
+				break;
+			default:
+				break;
+			}
+			break;
+		case FLASH_MANUF_ID_ST:
+			switch (dev_id) {
+			case FLASH_DEV_ID_STM29008:
+				asd_ha->hw_prof.flash.method = FLASH_METHOD_B;
+				break;
+			default:
+				break;
+			}
+			break;
+		case FLASH_MANUF_ID_FUJITSU:
+			switch (dev_id) {
+			case FLASH_DEV_ID_MBM29LV008TA:
+				asd_ha->hw_prof.flash.method = FLASH_METHOD_B;
+				break;
+			}
+			break;
+		case FLASH_MANUF_ID_INTEL:
+			switch (dev_id) {
+			case FLASH_DEV_ID_I28LV00TAT:
+				asd_ha->hw_prof.flash.method = FLASH_METHOD_B;
+				break;
+			}
+			break;
+		case FLASH_MANUF_ID_MACRONIX:
+			switch (dev_id) {
+			case FLASH_DEV_ID_I28LV00TAT:
+				asd_ha->hw_prof.flash.method = FLASH_METHOD_B;
+				break;
+			}
+			break;
+		default:
+			return FAIL_FIND_FLASH_ID;
+		}
+	}
+
+	if (asd_ha->hw_prof.flash.method == FLASH_METHOD_UNKNOWN)
+	      return FAIL_FIND_FLASH_ID;
+
+	asd_ha->hw_prof.flash.manuf = manuf_id;
+	asd_ha->hw_prof.flash.dev_id = dev_id;
+	asd_ha->hw_prof.flash.sec_prot = sec_prot;
+	return 0;
+}

drivers/scsi/aic94xx/aic94xx_sds.h

@@ -0,0 +1,121 @@
+/*
+ * Aic94xx SAS/SATA driver hardware interface header file.
+ *
+ * Copyright (C) 2005 Adaptec, Inc.  All rights reserved.
+ * Copyright (C) 2005 Gilbert Wu <gilbert_wu@adaptec.com>
+ *
+ * This file is licensed under GPLv2.
+ *
+ * This file is part of the aic94xx driver.
+ *
+ * The aic94xx driver is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 of the
+ * License.
+ *
+ * The aic94xx driver is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the aic94xx driver; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+#ifndef _AIC94XX_SDS_H_
+#define _AIC94XX_SDS_H_
+
+enum {
+	FLASH_METHOD_UNKNOWN,
+	FLASH_METHOD_A,
+	FLASH_METHOD_B
+};
+
+#define FLASH_MANUF_ID_AMD              0x01
+#define FLASH_MANUF_ID_ST               0x20
+#define FLASH_MANUF_ID_FUJITSU          0x04
+#define FLASH_MANUF_ID_MACRONIX         0xC2
+#define FLASH_MANUF_ID_INTEL            0x89
+#define FLASH_MANUF_ID_UNKNOWN          0xFF
+
+#define FLASH_DEV_ID_AM29LV008BT        0x3E
+#define FLASH_DEV_ID_AM29LV800DT        0xDA
+#define FLASH_DEV_ID_STM29W800DT        0xD7
+#define FLASH_DEV_ID_STM29LV640         0xDE
+#define FLASH_DEV_ID_STM29008           0xEA
+#define FLASH_DEV_ID_MBM29LV800TE       0xDA
+#define FLASH_DEV_ID_MBM29DL800TA       0x4A
+#define FLASH_DEV_ID_MBM29LV008TA       0x3E
+#define FLASH_DEV_ID_AM29LV640MT        0x7E
+#define FLASH_DEV_ID_AM29F800B          0xD6
+#define FLASH_DEV_ID_MX29LV800BT        0xDA
+#define FLASH_DEV_ID_MX29LV008CT        0xDA
+#define FLASH_DEV_ID_I28LV00TAT         0x3E
+#define FLASH_DEV_ID_UNKNOWN            0xFF
+
+/* status bit mask values */
+#define FLASH_STATUS_BIT_MASK_DQ6       0x40
+#define FLASH_STATUS_BIT_MASK_DQ5       0x20
+#define FLASH_STATUS_BIT_MASK_DQ2       0x04
+
+/* minimum value in micro seconds needed for checking status */
+#define FLASH_STATUS_ERASE_DELAY_COUNT  50
+#define FLASH_STATUS_WRITE_DELAY_COUNT  25
+
+#define FLASH_SECTOR_SIZE               0x010000
+#define FLASH_SECTOR_SIZE_MASK          0xffff0000
+
+#define FLASH_OK                        0x000000
+#define FAIL_OPEN_BIOS_FILE             0x000100
+#define FAIL_CHECK_PCI_ID               0x000200
+#define FAIL_CHECK_SUM                  0x000300
+#define FAIL_UNKNOWN                    0x000400
+#define FAIL_VERIFY                     0x000500
+#define FAIL_RESET_FLASH                0x000600
+#define FAIL_FIND_FLASH_ID              0x000700
+#define FAIL_ERASE_FLASH                0x000800
+#define FAIL_WRITE_FLASH                0x000900
+#define FAIL_FILE_SIZE                  0x000a00
+#define FAIL_PARAMETERS                 0x000b00
+#define FAIL_OUT_MEMORY                 0x000c00
+#define FLASH_IN_PROGRESS               0x001000
+
+struct controller_id {
+	u32 vendor;     /* PCI Vendor ID */
+	u32 device;     /* PCI Device ID */
+	u32 sub_vendor; /* PCI Subvendor ID */
+	u32 sub_device; /* PCI Subdevice ID */
+};
+
+struct image_info {
+	u32 ImageId;       /* Identifies the image */
+	u32 ImageOffset;   /* Offset the beginning of the file */
+	u32 ImageLength;   /* length of the image */
+	u32 ImageChecksum; /* Image checksum */
+	u32 ImageVersion;  /* Version of the image, could be build number */
+};
+
+struct bios_file_header {
+	u8 signature[32]; /* Signature/Cookie to identify the file */
+	u32 checksum;	  /*Entire file checksum with this field zero */
+	u32 antidote;	  /* Entire file checksum with this field 0xFFFFFFFF */
+	struct controller_id contrl_id; /*PCI id to identify the controller */
+	u32 filelen;      /*Length of the entire file*/
+	u32 chunk_num;	  /*The chunk/part number for multiple Image files */
+	u32 total_chunks; /*Total number of chunks/parts in the image file */
+	u32 num_images;   /* Number of images in the file */
+	u32 build_num;    /* Build number of this image */
+	struct image_info image_header;
+};
+
+int asd_verify_flash_seg(struct asd_ha_struct *asd_ha,
+		void *src, u32 dest_offset, u32 bytes_to_verify);
+int asd_write_flash_seg(struct asd_ha_struct *asd_ha,
+		void *src, u32 dest_offset, u32 bytes_to_write);
+int asd_chk_write_status(struct asd_ha_struct *asd_ha,
+		u32 sector_addr, u8 erase_flag);
+int asd_check_flash_type(struct asd_ha_struct *asd_ha);
+int asd_erase_nv_sector(struct asd_ha_struct *asd_ha,
+		u32 flash_addr, u32 size);
+#endif

drivers/scsi/aic94xx/aic94xx_task.c

@@ -187,29 +187,13 @@ static void asd_get_response_tasklet(struct asd_ascb *ascb,
 	ts->buf_valid_size = 0;
 	edb = asd_ha->seq.edb_arr[edb_id + escb->edb_index];
 	r = edb->vaddr;
-	if (task->task_proto == SAS_PROTO_SSP) {
+	if (task->task_proto == SAS_PROTOCOL_SSP) {
 		struct ssp_response_iu *iu =
 			r + 16 + sizeof(struct ssp_frame_hdr);
 
 		ts->residual = le32_to_cpu(*(__le32 *)r);
-		ts->resp = SAS_TASK_COMPLETE;
-		if (iu->datapres == 0)
-			ts->stat = iu->status;
-		else if (iu->datapres == 1)
-			ts->stat = iu->resp_data[3];
-		else if (iu->datapres == 2) {
-			ts->stat = SAM_CHECK_COND;
-			ts->buf_valid_size = min((u32) SAS_STATUS_BUF_SIZE,
-					 be32_to_cpu(iu->sense_data_len));
-			memcpy(ts->buf, iu->sense_data, ts->buf_valid_size);
-			if (iu->status != SAM_CHECK_COND) {
-				ASD_DPRINTK("device %llx sent sense data, but "
-					    "stat(0x%x) is not CHECK_CONDITION"
-					    "\n",
-					    SAS_ADDR(task->dev->sas_addr),
-					    iu->status);
-			}
-		}
+
+		sas_ssp_task_response(&asd_ha->pcidev->dev, task, iu);
 	}  else {
 		struct ata_task_resp *resp = (void *) &ts->buf[0];
 
@@ -341,14 +325,14 @@ Again:
 	}
 
 	switch (task->task_proto) {
-	case SATA_PROTO:
-	case SAS_PROTO_STP:
+	case SAS_PROTOCOL_SATA:
+	case SAS_PROTOCOL_STP:
 		asd_unbuild_ata_ascb(ascb);
 		break;
-	case SAS_PROTO_SMP:
+	case SAS_PROTOCOL_SMP:
 		asd_unbuild_smp_ascb(ascb);
 		break;
-	case SAS_PROTO_SSP:
+	case SAS_PROTOCOL_SSP:
 		asd_unbuild_ssp_ascb(ascb);
 	default:
 		break;
@@ -586,17 +570,17 @@ int asd_execute_task(struct sas_task *task, const int num,
 	list_for_each_entry(a, &alist, list) {
 		t = a->uldd_task;
 		a->uldd_timer = 1;
-		if (t->task_proto & SAS_PROTO_STP)
-			t->task_proto = SAS_PROTO_STP;
+		if (t->task_proto & SAS_PROTOCOL_STP)
+			t->task_proto = SAS_PROTOCOL_STP;
 		switch (t->task_proto) {
-		case SATA_PROTO:
-		case SAS_PROTO_STP:
+		case SAS_PROTOCOL_SATA:
+		case SAS_PROTOCOL_STP:
 			res = asd_build_ata_ascb(a, t, gfp_flags);
 			break;
-		case SAS_PROTO_SMP:
+		case SAS_PROTOCOL_SMP:
 			res = asd_build_smp_ascb(a, t, gfp_flags);
 			break;
-		case SAS_PROTO_SSP:
+		case SAS_PROTOCOL_SSP:
 			res = asd_build_ssp_ascb(a, t, gfp_flags);
 			break;
 		default:
@@ -633,14 +617,14 @@ out_err_unmap:
 			t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
 			spin_unlock_irqrestore(&t->task_state_lock, flags);
 			switch (t->task_proto) {
-			case SATA_PROTO:
-			case SAS_PROTO_STP:
+			case SAS_PROTOCOL_SATA:
+			case SAS_PROTOCOL_STP:
 				asd_unbuild_ata_ascb(a);
 				break;
-			case SAS_PROTO_SMP:
+			case SAS_PROTOCOL_SMP:
 				asd_unbuild_smp_ascb(a);
 				break;
-			case SAS_PROTO_SSP:
+			case SAS_PROTOCOL_SSP:
 				asd_unbuild_ssp_ascb(a);
 			default:
 				break;

drivers/scsi/aic94xx/aic94xx_tmf.c

@@ -372,21 +372,21 @@ int asd_abort_task(struct sas_task *task)
 	scb->header.opcode = ABORT_TASK;
 
 	switch (task->task_proto) {
-	case SATA_PROTO:
-	case SAS_PROTO_STP:
+	case SAS_PROTOCOL_SATA:
+	case SAS_PROTOCOL_STP:
 		scb->abort_task.proto_conn_rate = (1 << 5); /* STP */
 		break;
-	case SAS_PROTO_SSP:
+	case SAS_PROTOCOL_SSP:
 		scb->abort_task.proto_conn_rate  = (1 << 4); /* SSP */
 		scb->abort_task.proto_conn_rate |= task->dev->linkrate;
 		break;
-	case SAS_PROTO_SMP:
+	case SAS_PROTOCOL_SMP:
 		break;
 	default:
 		break;
 	}
 
-	if (task->task_proto == SAS_PROTO_SSP) {
+	if (task->task_proto == SAS_PROTOCOL_SSP) {
 		scb->abort_task.ssp_frame.frame_type = SSP_TASK;
 		memcpy(scb->abort_task.ssp_frame.hashed_dest_addr,
 		       task->dev->hashed_sas_addr, HASHED_SAS_ADDR_SIZE);
@@ -512,7 +512,7 @@ static int asd_initiate_ssp_tmf(struct domain_device *dev, u8 *lun,
 	int res = 1;
 	struct scb *scb;
 
-	if (!(dev->tproto & SAS_PROTO_SSP))
+	if (!(dev->tproto & SAS_PROTOCOL_SSP))
 		return TMF_RESP_FUNC_ESUPP;
 
 	ascb = asd_ascb_alloc_list(asd_ha, &res, GFP_KERNEL);

drivers/scsi/arcmsr/arcmsr_hba.c

@@ -634,9 +634,9 @@ static void arcmsr_report_sense_info(struct CommandControlBlock *ccb)
 	pcmd->result = DID_OK << 16;
 	if (sensebuffer) {
 		int sense_data_length =
-			sizeof(struct SENSE_DATA) < sizeof(pcmd->sense_buffer)
-			? sizeof(struct SENSE_DATA) : sizeof(pcmd->sense_buffer);
-		memset(sensebuffer, 0, sizeof(pcmd->sense_buffer));
+			sizeof(struct SENSE_DATA) < SCSI_SENSE_BUFFERSIZE
+			? sizeof(struct SENSE_DATA) : SCSI_SENSE_BUFFERSIZE;
+		memset(sensebuffer, 0, SCSI_SENSE_BUFFERSIZE);
 		memcpy(sensebuffer, ccb->arcmsr_cdb.SenseData, sense_data_length);
 		sensebuffer->ErrorCode = SCSI_SENSE_CURRENT_ERRORS;
 		sensebuffer->Valid = 1;

drivers/scsi/atari_NCR5380.c

@@ -511,9 +511,9 @@ static inline void initialize_SCp(Scsi_Cmnd *cmd)
 	 * various queues are valid.
 	 */
 
-	if (cmd->use_sg) {
-		cmd->SCp.buffer = (struct scatterlist *)cmd->request_buffer;
-		cmd->SCp.buffers_residual = cmd->use_sg - 1;
+	if (scsi_bufflen(cmd)) {
+		cmd->SCp.buffer = scsi_sglist(cmd);
+		cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 		/* ++roman: Try to merge some scatter-buffers if they are at
@@ -523,8 +523,8 @@ static inline void initialize_SCp(Scsi_Cmnd *cmd)
 	} else {
 		cmd->SCp.buffer = NULL;
 		cmd->SCp.buffers_residual = 0;
-		cmd->SCp.ptr = (char *)cmd->request_buffer;
-		cmd->SCp.this_residual = cmd->request_bufflen;
+		cmd->SCp.ptr = NULL;
+		cmd->SCp.this_residual = 0;
 	}
 }
 
@@ -936,21 +936,21 @@ static int NCR5380_queue_command(Scsi_Cmnd *cmd, void (*done)(Scsi_Cmnd *))
 	}
 # endif
 # ifdef NCR5380_STAT_LIMIT
-	if (cmd->request_bufflen > NCR5380_STAT_LIMIT)
+	if (scsi_bufflen(cmd) > NCR5380_STAT_LIMIT)
 # endif
 		switch (cmd->cmnd[0]) {
 		case WRITE:
 		case WRITE_6:
 		case WRITE_10:
 			hostdata->time_write[cmd->device->id] -= (jiffies - hostdata->timebase);
-			hostdata->bytes_write[cmd->device->id] += cmd->request_bufflen;
+			hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);
 			hostdata->pendingw++;
 			break;
 		case READ:
 		case READ_6:
 		case READ_10:
 			hostdata->time_read[cmd->device->id] -= (jiffies - hostdata->timebase);
-			hostdata->bytes_read[cmd->device->id] += cmd->request_bufflen;
+			hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);
 			hostdata->pendingr++;
 			break;
 		}
@@ -1352,21 +1352,21 @@ static irqreturn_t NCR5380_intr(int irq, void *dev_id)
 static void collect_stats(struct NCR5380_hostdata* hostdata, Scsi_Cmnd *cmd)
 {
 # ifdef NCR5380_STAT_LIMIT
-	if (cmd->request_bufflen > NCR5380_STAT_LIMIT)
+	if (scsi_bufflen(cmd) > NCR5380_STAT_LIMIT)
 # endif
 		switch (cmd->cmnd[0]) {
 		case WRITE:
 		case WRITE_6:
 		case WRITE_10:
 			hostdata->time_write[cmd->device->id] += (jiffies - hostdata->timebase);
-			/*hostdata->bytes_write[cmd->device->id] += cmd->request_bufflen;*/
+			/*hostdata->bytes_write[cmd->device->id] += scsi_bufflen(cmd);*/
 			hostdata->pendingw--;
 			break;
 		case READ:
 		case READ_6:
 		case READ_10:
 			hostdata->time_read[cmd->device->id] += (jiffies - hostdata->timebase);
-			/*hostdata->bytes_read[cmd->device->id] += cmd->request_bufflen;*/
+			/*hostdata->bytes_read[cmd->device->id] += scsi_bufflen(cmd);*/
 			hostdata->pendingr--;
 			break;
 		}
@@ -1868,7 +1868,7 @@ static int do_abort(struct Scsi_Host *host)
 	 * the target sees, so we just handshake.
 	 */
 
-	while (!(tmp = NCR5380_read(STATUS_REG)) & SR_REQ)
+	while (!((tmp = NCR5380_read(STATUS_REG)) & SR_REQ))
 		;
 
 	NCR5380_write(TARGET_COMMAND_REG, PHASE_SR_TO_TCR(tmp));

drivers/scsi/atp870u.c

@@ -471,18 +471,8 @@ go_42:
 			/*
 			 *	Complete the command
 			 */
-			if (workreq->use_sg) {
-				pci_unmap_sg(dev->pdev,
-					(struct scatterlist *)workreq->request_buffer,
-					workreq->use_sg,
-					workreq->sc_data_direction);
-			} else if (workreq->request_bufflen &&
-					workreq->sc_data_direction != DMA_NONE) {
-				pci_unmap_single(dev->pdev,
-					workreq->SCp.dma_handle,
-					workreq->request_bufflen,
-					workreq->sc_data_direction);
-			}			
+			scsi_dma_unmap(workreq);
+
 			spin_lock_irqsave(dev->host->host_lock, flags);
 			(*workreq->scsi_done) (workreq);
 #ifdef ED_DBGP
@@ -624,7 +614,7 @@ static int atp870u_queuecommand(struct scsi_cmnd * req_p,
 
 	c = scmd_channel(req_p);
 	req_p->sense_buffer[0]=0;
-	req_p->resid = 0;
+	scsi_set_resid(req_p, 0);
 	if (scmd_channel(req_p) > 1) {
 		req_p->result = 0x00040000;
 		done(req_p);
@@ -722,7 +712,6 @@ static void send_s870(struct atp_unit *dev,unsigned char c)
 	unsigned short int tmpcip, w;
 	unsigned long l, bttl = 0;
 	unsigned int workport;
-	struct scatterlist *sgpnt;
 	unsigned long  sg_count;
 
 	if (dev->in_snd[c] != 0) {
@@ -793,6 +782,8 @@ oktosend:
 	}
 	printk("\n");
 #endif	
+	l = scsi_bufflen(workreq);
+
 	if (dev->dev_id == ATP885_DEVID) {
 		j = inb(dev->baseport + 0x29) & 0xfe;
 		outb(j, dev->baseport + 0x29);
@@ -800,12 +791,11 @@ oktosend:
 	}
 	
 	if (workreq->cmnd[0] == READ_CAPACITY) {
-		if (workreq->request_bufflen > 8) {
-			workreq->request_bufflen = 0x08;
-		}
+		if (l > 8)
+			l = 8;
 	}
 	if (workreq->cmnd[0] == 0x00) {
-		workreq->request_bufflen = 0;
+		l = 0;
 	}
 
 	tmport = workport + 0x1b;
@@ -852,40 +842,8 @@ oktosend:
 #ifdef ED_DBGP	
 	printk("dev->id[%d][%d].devsp = %2x\n",c,target_id,dev->id[c][target_id].devsp);
 #endif
-	/*
-	 *	Figure out the transfer size
-	 */
-	if (workreq->use_sg) {
-#ifdef ED_DBGP
-		printk("Using SGL\n");
-#endif		
-		l = 0;
-		
-		sgpnt = (struct scatterlist *) workreq->request_buffer;
-		sg_count = pci_map_sg(dev->pdev, sgpnt, workreq->use_sg,
-	   			workreq->sc_data_direction);		
-		
-		for (i = 0; i < workreq->use_sg; i++) {
-			if (sgpnt[i].length == 0 || workreq->use_sg > ATP870U_SCATTER) {
-				panic("Foooooooood fight!");
-			}
-			l += sgpnt[i].length;
-		}
-#ifdef ED_DBGP		
-		printk( "send_s870: workreq->use_sg %d, sg_count %d l %8ld\n", workreq->use_sg, sg_count, l);
-#endif
-	} else if(workreq->request_bufflen && workreq->sc_data_direction != PCI_DMA_NONE) {
-#ifdef ED_DBGP
-		printk("Not using SGL\n");
-#endif					
-		workreq->SCp.dma_handle = pci_map_single(dev->pdev, workreq->request_buffer,
-				workreq->request_bufflen,
-				workreq->sc_data_direction);		
-		l = workreq->request_bufflen;
-#ifdef ED_DBGP		
-		printk( "send_s870: workreq->use_sg %d, l %8ld\n", workreq->use_sg, l);
-#endif
-	} else l = 0;
+
+	sg_count = scsi_dma_map(workreq);
 	/*
 	 *	Write transfer size
 	 */
@@ -938,16 +896,16 @@ oktosend:
 	 *	a linear chain.
 	 */
 
-	if (workreq->use_sg) {
-		sgpnt = (struct scatterlist *) workreq->request_buffer;
+	if (l) {
+		struct scatterlist *sgpnt;
 		i = 0;
-		for (j = 0; j < workreq->use_sg; j++) {
-			bttl = sg_dma_address(&sgpnt[j]);
-			l=sg_dma_len(&sgpnt[j]);
+		scsi_for_each_sg(workreq, sgpnt, sg_count, j) {
+			bttl = sg_dma_address(sgpnt);
+			l=sg_dma_len(sgpnt);
 #ifdef ED_DBGP		
-		printk("1. bttl %x, l %x\n",bttl, l);
+			printk("1. bttl %x, l %x\n",bttl, l);
 #endif			
-		while (l > 0x10000) {
+			while (l > 0x10000) {
 				(((u16 *) (prd))[i + 3]) = 0x0000;
 				(((u16 *) (prd))[i + 2]) = 0x0000;
 				(((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
@@ -965,32 +923,6 @@ oktosend:
 		printk("prd %4x %4x %4x %4x\n",(((unsigned short int *)prd)[0]),(((unsigned short int *)prd)[1]),(((unsigned short int *)prd)[2]),(((unsigned short int *)prd)[3]));
 		printk("2. bttl %x, l %x\n",bttl, l);
 #endif			
-	} else {
-		/*
-		 *	For a linear request write a chain of blocks
-		 */        
-		bttl = workreq->SCp.dma_handle;
-		l = workreq->request_bufflen;
-		i = 0;
-#ifdef ED_DBGP		
-		printk("3. bttl %x, l %x\n",bttl, l);
-#endif			
-		while (l > 0x10000) {
-				(((u16 *) (prd))[i + 3]) = 0x0000;
-				(((u16 *) (prd))[i + 2]) = 0x0000;
-				(((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);
-				l -= 0x10000;
-				bttl += 0x10000;
-				i += 0x04;
-			}
-			(((u16 *) (prd))[i + 3]) = cpu_to_le16(0x8000);
-			(((u16 *) (prd))[i + 2]) = cpu_to_le16(l);
-			(((u32 *) (prd))[i >> 1]) = cpu_to_le32(bttl);		
-#ifdef ED_DBGP		
-		printk("prd %4x %4x %4x %4x\n",(((unsigned short int *)prd)[0]),(((unsigned short int *)prd)[1]),(((unsigned short int *)prd)[2]),(((unsigned short int *)prd)[3]));
-		printk("4. bttl %x, l %x\n",bttl, l);
-#endif			
-		
 	}
 	tmpcip += 4;
 #ifdef ED_DBGP		

drivers/scsi/ch.c

@@ -21,6 +21,7 @@
 #include <linux/compat.h>
 #include <linux/chio.h>			/* here are all the ioctls */
 #include <linux/mutex.h>
+#include <linux/idr.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
@@ -33,6 +34,7 @@
 
 #define CH_DT_MAX       16
 #define CH_TYPES        8
+#define CH_MAX_DEVS     128
 
 MODULE_DESCRIPTION("device driver for scsi media changer devices");
 MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org>");
@@ -88,17 +90,6 @@ static const char * vendor_labels[CH_TYPES-4] = {
 
 #define MAX_RETRIES   1
 
-static int  ch_probe(struct device *);
-static int  ch_remove(struct device *);
-static int  ch_open(struct inode * inode, struct file * filp);
-static int  ch_release(struct inode * inode, struct file * filp);
-static int  ch_ioctl(struct inode * inode, struct file * filp,
-		     unsigned int cmd, unsigned long arg);
-#ifdef CONFIG_COMPAT
-static long ch_ioctl_compat(struct file * filp,
-			    unsigned int cmd, unsigned long arg);
-#endif
-
 static struct class * ch_sysfs_class;
 
 typedef struct {
@@ -114,30 +105,8 @@ typedef struct {
 	struct mutex	    lock;
 } scsi_changer;
 
-static LIST_HEAD(ch_devlist);
-static DEFINE_SPINLOCK(ch_devlist_lock);
-static int ch_devcount;
-
-static struct scsi_driver ch_template =
-{
-	.owner     	= THIS_MODULE,
-	.gendrv     	= {
-		.name	= "ch",
-		.probe  = ch_probe,
-		.remove = ch_remove,
-	},
-};
-
-static const struct file_operations changer_fops =
-{
-	.owner        = THIS_MODULE,
-	.open         = ch_open,
-	.release      = ch_release,
-	.ioctl        = ch_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = ch_ioctl_compat,
-#endif
-};
+static DEFINE_IDR(ch_index_idr);
+static DEFINE_SPINLOCK(ch_index_lock);
 
 static const struct {
 	unsigned char  sense;
@@ -207,7 +176,7 @@ ch_do_scsi(scsi_changer *ch, unsigned char *cmd,
 {
 	int errno, retries = 0, timeout, result;
 	struct scsi_sense_hdr sshdr;
-	
+
 	timeout = (cmd[0] == INITIALIZE_ELEMENT_STATUS)
 		? timeout_init : timeout_move;
 
@@ -245,7 +214,7 @@ static int
 ch_elem_to_typecode(scsi_changer *ch, u_int elem)
 {
 	int i;
-	
+
 	for (i = 0; i < CH_TYPES; i++) {
 		if (elem >= ch->firsts[i]  &&
 		    elem <  ch->firsts[i] +
@@ -261,15 +230,15 @@ ch_read_element_status(scsi_changer *ch, u_int elem, char *data)
 	u_char  cmd[12];
 	u_char  *buffer;
 	int     result;
-	
+
 	buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
 	if(!buffer)
 		return -ENOMEM;
-	
+
  retry:
 	memset(cmd,0,sizeof(cmd));
 	cmd[0] = READ_ELEMENT_STATUS;
-	cmd[1] = (ch->device->lun << 5) | 
+	cmd[1] = (ch->device->lun << 5) |
 		(ch->voltags ? 0x10 : 0) |
 		ch_elem_to_typecode(ch,elem);
 	cmd[2] = (elem >> 8) & 0xff;
@@ -296,7 +265,7 @@ ch_read_element_status(scsi_changer *ch, u_int elem, char *data)
 	return result;
 }
 
-static int 
+static int
 ch_init_elem(scsi_changer *ch)
 {
 	int err;
@@ -322,7 +291,7 @@ ch_readconfig(scsi_changer *ch)
 	buffer = kzalloc(512, GFP_KERNEL | GFP_DMA);
 	if (!buffer)
 		return -ENOMEM;
-	
+
 	memset(cmd,0,sizeof(cmd));
 	cmd[0] = MODE_SENSE;
 	cmd[1] = ch->device->lun << 5;
@@ -365,7 +334,7 @@ ch_readconfig(scsi_changer *ch)
 	} else {
 		vprintk("reading element address assigment page failed!\n");
 	}
-	
+
 	/* vendor specific element types */
 	for (i = 0; i < 4; i++) {
 		if (0 == vendor_counts[i])
@@ -443,7 +412,7 @@ static int
 ch_position(scsi_changer *ch, u_int trans, u_int elem, int rotate)
 {
 	u_char  cmd[10];
-	
+
 	dprintk("position: 0x%x\n",elem);
 	if (0 == trans)
 		trans = ch->firsts[CHET_MT];
@@ -462,7 +431,7 @@ static int
 ch_move(scsi_changer *ch, u_int trans, u_int src, u_int dest, int rotate)
 {
 	u_char  cmd[12];
-	
+
 	dprintk("move: 0x%x => 0x%x\n",src,dest);
 	if (0 == trans)
 		trans = ch->firsts[CHET_MT];
@@ -484,7 +453,7 @@ ch_exchange(scsi_changer *ch, u_int trans, u_int src,
 	    u_int dest1, u_int dest2, int rotate1, int rotate2)
 {
 	u_char  cmd[12];
-	
+
 	dprintk("exchange: 0x%x => 0x%x => 0x%x\n",
 		src,dest1,dest2);
 	if (0 == trans)
@@ -501,7 +470,7 @@ ch_exchange(scsi_changer *ch, u_int trans, u_int src,
 	cmd[8]  = (dest2 >> 8) & 0xff;
 	cmd[9]  =  dest2       & 0xff;
 	cmd[10] = (rotate1 ? 1 : 0) | (rotate2 ? 2 : 0);
-	
+
 	return ch_do_scsi(ch, cmd, NULL,0, DMA_NONE);
 }
 
@@ -539,14 +508,14 @@ ch_set_voltag(scsi_changer *ch, u_int elem,
 		elem, tag);
 	memset(cmd,0,sizeof(cmd));
 	cmd[0]  = SEND_VOLUME_TAG;
-	cmd[1] = (ch->device->lun << 5) | 
+	cmd[1] = (ch->device->lun << 5) |
 		ch_elem_to_typecode(ch,elem);
 	cmd[2] = (elem >> 8) & 0xff;
 	cmd[3] = elem        & 0xff;
 	cmd[5] = clear
 		? (alternate ? 0x0d : 0x0c)
 		: (alternate ? 0x0b : 0x0a);
-	
+
 	cmd[9] = 255;
 
 	memcpy(buffer,tag,32);
@@ -562,7 +531,7 @@ static int ch_gstatus(scsi_changer *ch, int type, unsigned char __user *dest)
 	int retval = 0;
 	u_char data[16];
 	unsigned int i;
-	
+
 	mutex_lock(&ch->lock);
 	for (i = 0; i < ch->counts[type]; i++) {
 		if (0 != ch_read_element_status
@@ -599,20 +568,17 @@ ch_release(struct inode *inode, struct file *file)
 static int
 ch_open(struct inode *inode, struct file *file)
 {
-	scsi_changer *tmp, *ch;
+	scsi_changer *ch;
 	int minor = iminor(inode);
 
-	spin_lock(&ch_devlist_lock);
-	ch = NULL;
-	list_for_each_entry(tmp,&ch_devlist,list) {
-		if (tmp->minor == minor)
-			ch = tmp;
-	}
+	spin_lock(&ch_index_lock);
+	ch = idr_find(&ch_index_idr, minor);
+
 	if (NULL == ch || scsi_device_get(ch->device)) {
-		spin_unlock(&ch_devlist_lock);
+		spin_unlock(&ch_index_lock);
 		return -ENXIO;
 	}
-	spin_unlock(&ch_devlist_lock);
+	spin_unlock(&ch_index_lock);
 
 	file->private_data = ch;
 	return 0;
@@ -626,24 +592,24 @@ ch_checkrange(scsi_changer *ch, unsigned int type, unsigned int unit)
 	return 0;
 }
 
-static int ch_ioctl(struct inode * inode, struct file * file,
+static long ch_ioctl(struct file *file,
 		    unsigned int cmd, unsigned long arg)
 {
 	scsi_changer *ch = file->private_data;
 	int retval;
 	void __user *argp = (void __user *)arg;
-	
+
 	switch (cmd) {
 	case CHIOGPARAMS:
 	{
 		struct changer_params params;
-		
+
 		params.cp_curpicker = 0;
 		params.cp_npickers  = ch->counts[CHET_MT];
 		params.cp_nslots    = ch->counts[CHET_ST];
 		params.cp_nportals  = ch->counts[CHET_IE];
 		params.cp_ndrives   = ch->counts[CHET_DT];
-		
+
 		if (copy_to_user(argp, &params, sizeof(params)))
 			return -EFAULT;
 		return 0;
@@ -673,11 +639,11 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 			return -EFAULT;
 		return 0;
 	}
-	
+
 	case CHIOPOSITION:
 	{
 		struct changer_position pos;
-		
+
 		if (copy_from_user(&pos, argp, sizeof (pos)))
 			return -EFAULT;
 
@@ -692,7 +658,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 		mutex_unlock(&ch->lock);
 		return retval;
 	}
-	
+
 	case CHIOMOVE:
 	{
 		struct changer_move mv;
@@ -705,7 +671,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 			dprintk("CHIOMOVE: invalid parameter\n");
 			return -EBADSLT;
 		}
-		
+
 		mutex_lock(&ch->lock);
 		retval = ch_move(ch,0,
 				 ch->firsts[mv.cm_fromtype] + mv.cm_fromunit,
@@ -718,7 +684,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 	case CHIOEXCHANGE:
 	{
 		struct changer_exchange mv;
-		
+
 		if (copy_from_user(&mv, argp, sizeof (mv)))
 			return -EFAULT;
 
@@ -728,7 +694,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 			dprintk("CHIOEXCHANGE: invalid parameter\n");
 			return -EBADSLT;
 		}
-		
+
 		mutex_lock(&ch->lock);
 		retval = ch_exchange
 			(ch,0,
@@ -743,7 +709,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 	case CHIOGSTATUS:
 	{
 		struct changer_element_status ces;
-		
+
 		if (copy_from_user(&ces, argp, sizeof (ces)))
 			return -EFAULT;
 		if (ces.ces_type < 0 || ces.ces_type >= CH_TYPES)
@@ -759,19 +725,19 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 		u_char  *buffer;
 		unsigned int elem;
 		int     result,i;
-		
+
 		if (copy_from_user(&cge, argp, sizeof (cge)))
 			return -EFAULT;
 
 		if (0 != ch_checkrange(ch, cge.cge_type, cge.cge_unit))
 			return -EINVAL;
 		elem = ch->firsts[cge.cge_type] + cge.cge_unit;
-		
+
 		buffer = kmalloc(512, GFP_KERNEL | GFP_DMA);
 		if (!buffer)
 			return -ENOMEM;
 		mutex_lock(&ch->lock);
-		
+
 	voltag_retry:
 		memset(cmd,0,sizeof(cmd));
 		cmd[0] = READ_ELEMENT_STATUS;
@@ -782,7 +748,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 		cmd[3] = elem        & 0xff;
 		cmd[5] = 1;
 		cmd[9] = 255;
-		
+
 		if (0 == (result = ch_do_scsi(ch, cmd, buffer, 256, DMA_FROM_DEVICE))) {
 			cge.cge_status = buffer[18];
 			cge.cge_flags = 0;
@@ -822,7 +788,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 		}
 		kfree(buffer);
 		mutex_unlock(&ch->lock);
-		
+
 		if (copy_to_user(argp, &cge, sizeof (cge)))
 			return -EFAULT;
 		return result;
@@ -835,7 +801,7 @@ static int ch_ioctl(struct inode * inode, struct file * file,
 		mutex_unlock(&ch->lock);
 		return retval;
 	}
-		
+
 	case CHIOSVOLTAG:
 	{
 		struct changer_set_voltag csv;
@@ -876,7 +842,7 @@ static long ch_ioctl_compat(struct file * file,
 			    unsigned int cmd, unsigned long arg)
 {
 	scsi_changer *ch = file->private_data;
-	
+
 	switch (cmd) {
 	case CHIOGPARAMS:
 	case CHIOGVPARAMS:
@@ -887,13 +853,12 @@ static long ch_ioctl_compat(struct file * file,
 	case CHIOINITELEM:
 	case CHIOSVOLTAG:
 		/* compatible */
-		return ch_ioctl(NULL /* inode, unused */,
-				file, cmd, arg);
+		return ch_ioctl(file, cmd, arg);
 	case CHIOGSTATUS32:
 	{
 		struct changer_element_status32 ces32;
 		unsigned char __user *data;
-		
+
 		if (copy_from_user(&ces32, (void __user *)arg, sizeof (ces32)))
 			return -EFAULT;
 		if (ces32.ces_type < 0 || ces32.ces_type >= CH_TYPES)
@@ -915,63 +880,100 @@ static long ch_ioctl_compat(struct file * file,
 static int ch_probe(struct device *dev)
 {
 	struct scsi_device *sd = to_scsi_device(dev);
+	struct class_device *class_dev;
+	int minor, ret = -ENOMEM;
 	scsi_changer *ch;
-	
+
 	if (sd->type != TYPE_MEDIUM_CHANGER)
 		return -ENODEV;
-    
+
 	ch = kzalloc(sizeof(*ch), GFP_KERNEL);
 	if (NULL == ch)
 		return -ENOMEM;
 
-	ch->minor = ch_devcount;
+	if (!idr_pre_get(&ch_index_idr, GFP_KERNEL))
+		goto free_ch;
+
+	spin_lock(&ch_index_lock);
+	ret = idr_get_new(&ch_index_idr, ch, &minor);
+	spin_unlock(&ch_index_lock);
+
+	if (ret)
+		goto free_ch;
+
+	if (minor > CH_MAX_DEVS) {
+		ret = -ENODEV;
+		goto remove_idr;
+	}
+
+	ch->minor = minor;
 	sprintf(ch->name,"ch%d",ch->minor);
+
+	class_dev = class_device_create(ch_sysfs_class, NULL,
+					MKDEV(SCSI_CHANGER_MAJOR, ch->minor),
+					dev, "s%s", ch->name);
+	if (IS_ERR(class_dev)) {
+		printk(KERN_WARNING "ch%d: class_device_create failed\n",
+		       ch->minor);
+		ret = PTR_ERR(class_dev);
+		goto remove_idr;
+	}
+
 	mutex_init(&ch->lock);
 	ch->device = sd;
 	ch_readconfig(ch);
 	if (init)
 		ch_init_elem(ch);
 
-	class_device_create(ch_sysfs_class, NULL,
-			    MKDEV(SCSI_CHANGER_MAJOR,ch->minor),
-			    dev, "s%s", ch->name);
-
+	dev_set_drvdata(dev, ch);
 	sdev_printk(KERN_INFO, sd, "Attached scsi changer %s\n", ch->name);
-	
-	spin_lock(&ch_devlist_lock);
-	list_add_tail(&ch->list,&ch_devlist);
-	ch_devcount++;
-	spin_unlock(&ch_devlist_lock);
+
 	return 0;
+remove_idr:
+	idr_remove(&ch_index_idr, minor);
+free_ch:
+	kfree(ch);
+	return ret;
 }
 
 static int ch_remove(struct device *dev)
 {
-	struct scsi_device *sd = to_scsi_device(dev);
-	scsi_changer *tmp, *ch;
+	scsi_changer *ch = dev_get_drvdata(dev);
 
-	spin_lock(&ch_devlist_lock);
-	ch = NULL;
-	list_for_each_entry(tmp,&ch_devlist,list) {
-		if (tmp->device == sd)
-			ch = tmp;
-	}
-	BUG_ON(NULL == ch);
-	list_del(&ch->list);
-	spin_unlock(&ch_devlist_lock);
+	spin_lock(&ch_index_lock);
+	idr_remove(&ch_index_idr, ch->minor);
+	spin_unlock(&ch_index_lock);
 
 	class_device_destroy(ch_sysfs_class,
 			     MKDEV(SCSI_CHANGER_MAJOR,ch->minor));
 	kfree(ch->dt);
 	kfree(ch);
-	ch_devcount--;
 	return 0;
 }
 
+static struct scsi_driver ch_template = {
+	.owner     	= THIS_MODULE,
+	.gendrv     	= {
+		.name	= "ch",
+		.probe  = ch_probe,
+		.remove = ch_remove,
+	},
+};
+
+static const struct file_operations changer_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ch_open,
+	.release	= ch_release,
+	.unlocked_ioctl	= ch_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= ch_ioctl_compat,
+#endif
+};
+
 static int __init init_ch_module(void)
 {
 	int rc;
-	
+
 	printk(KERN_INFO "SCSI Media Changer driver v" VERSION " \n");
         ch_sysfs_class = class_create(THIS_MODULE, "scsi_changer");
         if (IS_ERR(ch_sysfs_class)) {
@@ -996,11 +998,12 @@ static int __init init_ch_module(void)
 	return rc;
 }
 
-static void __exit exit_ch_module(void) 
+static void __exit exit_ch_module(void)
 {
 	scsi_unregister_driver(&ch_template.gendrv);
 	unregister_chrdev(SCSI_CHANGER_MAJOR, "ch");
 	class_destroy(ch_sysfs_class);
+	idr_destroy(&ch_index_idr);
 }
 
 module_init(init_ch_module);

drivers/scsi/constants.c

@@ -362,7 +362,6 @@ void scsi_print_command(struct scsi_cmnd *cmd)
 EXPORT_SYMBOL(scsi_print_command);
 
 /**
- *
  *	scsi_print_status - print scsi status description
  *	@scsi_status: scsi status value
  *
@@ -1369,7 +1368,7 @@ EXPORT_SYMBOL(scsi_print_sense);
 static const char * const hostbyte_table[]={
 "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",
-"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY"};
+"DID_PASSTHROUGH", "DID_SOFT_ERROR", "DID_IMM_RETRY", "DID_REQUEUE"};
 #define NUM_HOSTBYTE_STRS ARRAY_SIZE(hostbyte_table)
 
 static const char * const driverbyte_table[]={

drivers/scsi/dc395x.c

@@ -1629,8 +1629,7 @@ static u8 start_scsi(struct AdapterCtlBlk* acb, struct DeviceCtlBlk* dcb,
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, (dcb->target_lun << 5));
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
-		DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
-			      sizeof(srb->cmd->sense_buffer));
+		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, SCSI_SENSE_BUFFERSIZE);
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
 	} else {
 		ptr = (u8 *)srb->cmd->cmnd;
@@ -1915,8 +1914,7 @@ static void command_phase1(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, (dcb->target_lun << 5));
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
-		DC395x_write8(acb, TRM_S1040_SCSI_FIFO,
-			      sizeof(srb->cmd->sense_buffer));
+		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, SCSI_SENSE_BUFFERSIZE);
 		DC395x_write8(acb, TRM_S1040_SCSI_FIFO, 0);
 	}
 	srb->state |= SRB_COMMAND;
@@ -3685,7 +3683,7 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 	srb->target_status = 0;
 
 	/* KG: Can this prevent crap sense data ? */
-	memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
+	memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
 
 	/* Save some data */
 	srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address =
@@ -3694,15 +3692,15 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 	    srb->segment_x[0].length;
 	srb->xferred = srb->total_xfer_length;
 	/* srb->segment_x : a one entry of S/G list table */
-	srb->total_xfer_length = sizeof(cmd->sense_buffer);
-	srb->segment_x[0].length = sizeof(cmd->sense_buffer);
+	srb->total_xfer_length = SCSI_SENSE_BUFFERSIZE;
+	srb->segment_x[0].length = SCSI_SENSE_BUFFERSIZE;
 	/* Map sense buffer */
 	srb->segment_x[0].address =
 	    pci_map_single(acb->dev, cmd->sense_buffer,
-			   sizeof(cmd->sense_buffer), PCI_DMA_FROMDEVICE);
+			   SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE);
 	dprintkdbg(DBG_SG, "request_sense: map buffer %p->%08x(%05x)\n",
 	       cmd->sense_buffer, srb->segment_x[0].address,
-	       sizeof(cmd->sense_buffer));
+	       SCSI_SENSE_BUFFERSIZE);
 	srb->sg_count = 1;
 	srb->sg_index = 0;
 

drivers/scsi/dpt_i2o.c

@@ -2296,9 +2296,8 @@ static s32 adpt_i2o_to_scsi(void __iomem *reply, struct scsi_cmnd* cmd)
 
 		// copy over the request sense data if it was a check
 		// condition status
-		if(dev_status == 0x02 /*CHECK_CONDITION*/) {
-			u32 len = sizeof(cmd->sense_buffer);
-			len = (len > 40) ?  40 : len;
+		if (dev_status == SAM_STAT_CHECK_CONDITION) {
+			u32 len = min(SCSI_SENSE_BUFFERSIZE, 40);
 			// Copy over the sense data
 			memcpy_fromio(cmd->sense_buffer, (reply+28) , len);
 			if(cmd->sense_buffer[0] == 0x70 /* class 7 */ && 

drivers/scsi/eata.c

@@ -1623,9 +1623,9 @@ static void map_dma(unsigned int i, struct hostdata *ha)
 	if (SCpnt->sense_buffer)
 		cpp->sense_addr =
 		    H2DEV(pci_map_single(ha->pdev, SCpnt->sense_buffer,
-			   sizeof SCpnt->sense_buffer, PCI_DMA_FROMDEVICE));
+			   SCSI_SENSE_BUFFERSIZE, PCI_DMA_FROMDEVICE));
 
-	cpp->sense_len = sizeof SCpnt->sense_buffer;
+	cpp->sense_len = SCSI_SENSE_BUFFERSIZE;
 
 	count = scsi_dma_map(SCpnt);
 	BUG_ON(count < 0);

drivers/scsi/eata_pio.c

@@ -369,7 +369,6 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
 	cp = &hd->ccb[y];
 
 	memset(cp, 0, sizeof(struct eata_ccb));
-	memset(cmd->sense_buffer, 0, sizeof(cmd->sense_buffer));
 
 	cp->status = USED;	/* claim free slot */
 
@@ -385,7 +384,7 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
 		cp->DataIn = 0;	/* Input mode  */
 
 	cp->Interpret = (cmd->device->id == hd->hostid);
-	cp->cp_datalen = cpu_to_be32(cmd->request_bufflen);
+	cp->cp_datalen = cpu_to_be32(scsi_bufflen(cmd));
 	cp->Auto_Req_Sen = 0;
 	cp->cp_reqDMA = 0;
 	cp->reqlen = 0;
@@ -402,14 +401,14 @@ static int eata_pio_queue(struct scsi_cmnd *cmd,
 	cp->cmd = cmd;
 	cmd->host_scribble = (char *) &hd->ccb[y];
 
-	if (cmd->use_sg == 0) {
+	if (!scsi_bufflen(cmd)) {
 		cmd->SCp.buffers_residual = 1;
-		cmd->SCp.ptr = cmd->request_buffer;
-		cmd->SCp.this_residual = cmd->request_bufflen;
+		cmd->SCp.ptr = NULL;
+		cmd->SCp.this_residual = 0;
 		cmd->SCp.buffer = NULL;
 	} else {
-		cmd->SCp.buffer = cmd->request_buffer;
-		cmd->SCp.buffers_residual = cmd->use_sg;
+		cmd->SCp.buffer = scsi_sglist(cmd);
+		cmd->SCp.buffers_residual = scsi_sg_count(cmd);
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 	}

drivers/scsi/fd_mcs.c

@@ -1017,24 +1017,6 @@ static irqreturn_t fd_mcs_intr(int irq, void *dev_id)
 		printk(" ** IN DONE %d ** ", current_SC->SCp.have_data_in);
 #endif
 
-#if ERRORS_ONLY
-		if (current_SC->cmnd[0] == REQUEST_SENSE && !current_SC->SCp.Status) {
-			if ((unsigned char) (*((char *) current_SC->request_buffer + 2)) & 0x0f) {
-				unsigned char key;
-				unsigned char code;
-				unsigned char qualifier;
-
-				key = (unsigned char) (*((char *) current_SC->request_buffer + 2)) & 0x0f;
-				code = (unsigned char) (*((char *) current_SC->request_buffer + 12));
-				qualifier = (unsigned char) (*((char *) current_SC->request_buffer + 13));
-
-				if (key != UNIT_ATTENTION && !(key == NOT_READY && code == 0x04 && (!qualifier || qualifier == 0x02 || qualifier == 0x01))
-				    && !(key == ILLEGAL_REQUEST && (code == 0x25 || code == 0x24 || !code)))
-
-					printk("fd_mcs: REQUEST SENSE " "Key = %x, Code = %x, Qualifier = %x\n", key, code, qualifier);
-			}
-		}
-#endif
 #if EVERY_ACCESS
 		printk("BEFORE MY_DONE. . .");
 #endif
@@ -1097,7 +1079,9 @@ static int fd_mcs_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 		panic("fd_mcs: fd_mcs_queue() NOT REENTRANT!\n");
 	}
 #if EVERY_ACCESS
-	printk("queue: target = %d cmnd = 0x%02x pieces = %d size = %u\n", SCpnt->target, *(unsigned char *) SCpnt->cmnd, SCpnt->use_sg, SCpnt->request_bufflen);
+	printk("queue: target = %d cmnd = 0x%02x pieces = %d size = %u\n",
+		SCpnt->target, *(unsigned char *) SCpnt->cmnd,
+		scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
 #endif
 
 	fd_mcs_make_bus_idle(shpnt);
@@ -1107,14 +1091,14 @@ static int fd_mcs_queue(Scsi_Cmnd * SCpnt, void (*done) (Scsi_Cmnd *))
 
 	/* Initialize static data */
 
-	if (current_SC->use_sg) {
-		current_SC->SCp.buffer = (struct scatterlist *) current_SC->request_buffer;
+	if (scsi_bufflen(current_SC)) {
+		current_SC->SCp.buffer = scsi_sglist(current_SC);
 		current_SC->SCp.ptr = sg_virt(current_SC->SCp.buffer);
 		current_SC->SCp.this_residual = current_SC->SCp.buffer->length;
-		current_SC->SCp.buffers_residual = current_SC->use_sg - 1;
+		current_SC->SCp.buffers_residual = scsi_sg_count(current_SC) - 1;
 	} else {
-		current_SC->SCp.ptr = (char *) current_SC->request_buffer;
-		current_SC->SCp.this_residual = current_SC->request_bufflen;
+		current_SC->SCp.ptr = NULL;
+		current_SC->SCp.this_residual = 0;
 		current_SC->SCp.buffer = NULL;
 		current_SC->SCp.buffers_residual = 0;
 	}
@@ -1166,7 +1150,9 @@ static void fd_mcs_print_info(Scsi_Cmnd * SCpnt)
 		break;
 	}
 
-	printk("(%d), target = %d cmnd = 0x%02x pieces = %d size = %u\n", SCpnt->SCp.phase, SCpnt->device->id, *(unsigned char *) SCpnt->cmnd, SCpnt->use_sg, SCpnt->request_bufflen);
+	printk("(%d), target = %d cmnd = 0x%02x pieces = %d size = %u\n",
+		SCpnt->SCp.phase, SCpnt->device->id, *(unsigned char *) SCpnt->cmnd,
+		scsi_sg_count(SCpnt), scsi_bufflen(SCpnt));
 	printk("sent_command = %d, have_data_in = %d, timeout = %d\n", SCpnt->SCp.sent_command, SCpnt->SCp.have_data_in, SCpnt->timeout);
 #if DEBUG_RACE
 	printk("in_interrupt_flag = %d\n", in_interrupt_flag);

drivers/scsi/gdth.c

@@ -141,7 +141,7 @@
 static void gdth_delay(int milliseconds);
 static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs);
 static irqreturn_t gdth_interrupt(int irq, void *dev_id);
-static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, int irq,
+static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
                                     int gdth_from_wait, int* pIndex);
 static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
                                                                Scsi_Cmnd *scp);
@@ -165,7 +165,6 @@ static int gdth_internal_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp);
 static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive);
 
 static void gdth_enable_int(gdth_ha_str *ha);
-static unchar gdth_get_status(gdth_ha_str *ha, int irq);
 static int gdth_test_busy(gdth_ha_str *ha);
 static int gdth_get_cmd_index(gdth_ha_str *ha);
 static void gdth_release_event(gdth_ha_str *ha);
@@ -1334,14 +1333,12 @@ static void __init gdth_enable_int(gdth_ha_str *ha)
 }
 
 /* return IStatus if interrupt was from this card else 0 */
-static unchar gdth_get_status(gdth_ha_str *ha, int irq)
+static unchar gdth_get_status(gdth_ha_str *ha)
 {
     unchar IStatus = 0;
 
-    TRACE(("gdth_get_status() irq %d ctr_count %d\n", irq, gdth_ctr_count));
+    TRACE(("gdth_get_status() irq %d ctr_count %d\n", ha->irq, gdth_ctr_count));
 
-        if (ha->irq != (unchar)irq)             /* check IRQ */
-            return false;
         if (ha->type == GDT_EISA)
             IStatus = inb((ushort)ha->bmic + EDOORREG);
         else if (ha->type == GDT_ISA)
@@ -1523,7 +1520,7 @@ static int gdth_wait(gdth_ha_str *ha, int index, ulong32 time)
         return 1;                               /* no wait required */
 
     do {
-        __gdth_interrupt(ha, (int)ha->irq, true, &wait_index);
+	__gdth_interrupt(ha, true, &wait_index);
         if (wait_index == index) {
             answer_found = TRUE;
             break;
@@ -3036,7 +3033,7 @@ static void gdth_clear_events(void)
 
 /* SCSI interface functions */
 
-static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, int irq,
+static irqreturn_t __gdth_interrupt(gdth_ha_str *ha,
                                     int gdth_from_wait, int* pIndex)
 {
     gdt6m_dpram_str __iomem *dp6m_ptr = NULL;
@@ -3054,7 +3051,7 @@ static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, int irq,
     int act_int_coal = 0;       
 #endif
 
-    TRACE(("gdth_interrupt() IRQ %d\n",irq));
+    TRACE(("gdth_interrupt() IRQ %d\n", ha->irq));
 
     /* if polling and not from gdth_wait() -> return */
     if (gdth_polling) {
@@ -3067,7 +3064,8 @@ static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, int irq,
         spin_lock_irqsave(&ha->smp_lock, flags);
 
     /* search controller */
-    if (0 == (IStatus = gdth_get_status(ha, irq))) {
+    IStatus = gdth_get_status(ha);
+    if (IStatus == 0) {
         /* spurious interrupt */
         if (!gdth_polling)
             spin_unlock_irqrestore(&ha->smp_lock, flags);
@@ -3294,9 +3292,9 @@ static irqreturn_t __gdth_interrupt(gdth_ha_str *ha, int irq,
 
 static irqreturn_t gdth_interrupt(int irq, void *dev_id)
 {
-	gdth_ha_str *ha = (gdth_ha_str *)dev_id;
+	gdth_ha_str *ha = dev_id;
 
-	return __gdth_interrupt(ha, irq, false, NULL);
+	return __gdth_interrupt(ha, false, NULL);
 }
 
 static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,

drivers/scsi/hosts.c

@@ -54,8 +54,7 @@ static struct class shost_class = {
 };
 
 /**
- *	scsi_host_set_state - Take the given host through the host
- *		state model.
+ *	scsi_host_set_state - Take the given host through the host state model.
  *	@shost:	scsi host to change the state of.
  *	@state:	state to change to.
  *
@@ -440,7 +439,6 @@ static int __scsi_host_match(struct class_device *cdev, void *data)
 
 /**
  * scsi_host_lookup - get a reference to a Scsi_Host by host no
- *
  * @hostnum:	host number to locate
  *
  * Return value:

drivers/scsi/hptiop.c

@@ -1,5 +1,5 @@
 /*
- * HighPoint RR3xxx controller driver for Linux
+ * HighPoint RR3xxx/4xxx controller driver for Linux
  * Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -38,80 +38,84 @@
 #include "hptiop.h"
 
 MODULE_AUTHOR("HighPoint Technologies, Inc.");
-MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver");
+MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
 
 static char driver_name[] = "hptiop";
-static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver";
-static const char driver_ver[] = "v1.2 (070830)";
-
-static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag);
-static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag);
+static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
+static const char driver_ver[] = "v1.3 (071203)";
+
+static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
+static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
+				struct hpt_iop_request_scsi_command *req);
+static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
+static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
 
-static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop)
-{
-	readl(&iop->outbound_intstatus);
-}
-
-static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec)
+static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
 {
 	u32 req = 0;
 	int i;
 
 	for (i = 0; i < millisec; i++) {
-		req = readl(&iop->inbound_queue);
+		req = readl(&hba->u.itl.iop->inbound_queue);
 		if (req != IOPMU_QUEUE_EMPTY)
 			break;
 		msleep(1);
 	}
 
 	if (req != IOPMU_QUEUE_EMPTY) {
-		writel(req, &iop->outbound_queue);
-		hptiop_pci_posting_flush(iop);
+		writel(req, &hba->u.itl.iop->outbound_queue);
+		readl(&hba->u.itl.iop->outbound_intstatus);
 		return 0;
 	}
 
 	return -1;
 }
 
-static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag)
+static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
+{
+	return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
+}
+
+static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
 {
 	if (tag & IOPMU_QUEUE_ADDR_HOST_BIT)
-		return hptiop_host_request_callback(hba,
+		hptiop_host_request_callback_itl(hba,
 				tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
 	else
-		return hptiop_iop_request_callback(hba, tag);
+		hptiop_iop_request_callback_itl(hba, tag);
 }
 
-static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba)
+static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
 {
 	u32 req;
 
-	while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) {
+	while ((req = readl(&hba->u.itl.iop->outbound_queue)) !=
+						IOPMU_QUEUE_EMPTY) {
 
 		if (req & IOPMU_QUEUE_MASK_HOST_BITS)
-			hptiop_request_callback(hba, req);
+			hptiop_request_callback_itl(hba, req);
 		else {
 			struct hpt_iop_request_header __iomem * p;
 
 			p = (struct hpt_iop_request_header __iomem *)
-				((char __iomem *)hba->iop + req);
+				((char __iomem *)hba->u.itl.iop + req);
 
 			if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
 				if (readl(&p->context))
-					hptiop_request_callback(hba, req);
+					hptiop_request_callback_itl(hba, req);
 				else
 					writel(1, &p->context);
 			}
 			else
-				hptiop_request_callback(hba, req);
+				hptiop_request_callback_itl(hba, req);
 		}
 	}
 }
 
-static int __iop_intr(struct hptiop_hba *hba)
+static int iop_intr_itl(struct hptiop_hba *hba)
 {
-	struct hpt_iopmu __iomem *iop = hba->iop;
+	struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
 	u32 status;
 	int ret = 0;
 
@@ -119,6 +123,7 @@ static int __iop_intr(struct hptiop_hba *hba)
 
 	if (status & IOPMU_OUTBOUND_INT_MSG0) {
 		u32 msg = readl(&iop->outbound_msgaddr0);
+
 		dprintk("received outbound msg %x\n", msg);
 		writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
 		hptiop_message_callback(hba, msg);
@@ -126,31 +131,115 @@ static int __iop_intr(struct hptiop_hba *hba)
 	}
 
 	if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
-		hptiop_drain_outbound_queue(hba);
+		hptiop_drain_outbound_queue_itl(hba);
+		ret = 1;
+	}
+
+	return ret;
+}
+
+static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu)
+{
+	u32 outbound_tail = readl(&mu->outbound_tail);
+	u32 outbound_head = readl(&mu->outbound_head);
+
+	if (outbound_tail != outbound_head) {
+		u64 p;
+
+		memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8);
+		outbound_tail++;
+
+		if (outbound_tail == MVIOP_QUEUE_LEN)
+			outbound_tail = 0;
+		writel(outbound_tail, &mu->outbound_tail);
+		return p;
+	} else
+		return 0;
+}
+
+static void mv_inbound_write(u64 p, struct hptiop_hba *hba)
+{
+	u32 inbound_head = readl(&hba->u.mv.mu->inbound_head);
+	u32 head = inbound_head + 1;
+
+	if (head == MVIOP_QUEUE_LEN)
+		head = 0;
+
+	memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8);
+	writel(head, &hba->u.mv.mu->inbound_head);
+	writel(MVIOP_MU_INBOUND_INT_POSTQUEUE,
+			&hba->u.mv.regs->inbound_doorbell);
+}
+
+static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag)
+{
+	u32 req_type = (tag >> 5) & 0x7;
+	struct hpt_iop_request_scsi_command *req;
+
+	dprintk("hptiop_request_callback_mv: tag=%llx\n", tag);
+
+	BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0);
+
+	switch (req_type) {
+	case IOP_REQUEST_TYPE_GET_CONFIG:
+	case IOP_REQUEST_TYPE_SET_CONFIG:
+		hba->msg_done = 1;
+		break;
+
+	case IOP_REQUEST_TYPE_SCSI_COMMAND:
+		req = hba->reqs[tag >> 8].req_virt;
+		if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT))
+			req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
+
+		hptiop_finish_scsi_req(hba, tag>>8, req);
+		break;
+
+	default:
+		break;
+	}
+}
+
+static int iop_intr_mv(struct hptiop_hba *hba)
+{
+	u32 status;
+	int ret = 0;
+
+	status = readl(&hba->u.mv.regs->outbound_doorbell);
+	writel(~status, &hba->u.mv.regs->outbound_doorbell);
+
+	if (status & MVIOP_MU_OUTBOUND_INT_MSG) {
+		u32 msg;
+		msg = readl(&hba->u.mv.mu->outbound_msg);
+		dprintk("received outbound msg %x\n", msg);
+		hptiop_message_callback(hba, msg);
+		ret = 1;
+	}
+
+	if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) {
+		u64 tag;
+
+		while ((tag = mv_outbound_read(hba->u.mv.mu)))
+			hptiop_request_callback_mv(hba, tag);
 		ret = 1;
 	}
 
 	return ret;
 }
 
-static int iop_send_sync_request(struct hptiop_hba *hba,
+static int iop_send_sync_request_itl(struct hptiop_hba *hba,
 					void __iomem *_req, u32 millisec)
 {
 	struct hpt_iop_request_header __iomem *req = _req;
 	u32 i;
 
-	writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST,
-			&req->flags);
-
+	writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags);
 	writel(0, &req->context);
-
-	writel((unsigned long)req - (unsigned long)hba->iop,
-			&hba->iop->inbound_queue);
-
-	hptiop_pci_posting_flush(hba->iop);
+	writel((unsigned long)req - (unsigned long)hba->u.itl.iop,
+			&hba->u.itl.iop->inbound_queue);
+	readl(&hba->u.itl.iop->outbound_intstatus);
 
 	for (i = 0; i < millisec; i++) {
-		__iop_intr(hba);
+		iop_intr_itl(hba);
 		if (readl(&req->context))
 			return 0;
 		msleep(1);
@@ -159,19 +248,49 @@ static int iop_send_sync_request(struct hptiop_hba *hba,
 	return -1;
 }
 
-static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
+static int iop_send_sync_request_mv(struct hptiop_hba *hba,
+					u32 size_bits, u32 millisec)
 {
+	struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req;
 	u32 i;
 
 	hba->msg_done = 0;
+	reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
+	mv_inbound_write(hba->u.mv.internal_req_phy |
+			MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba);
+
+	for (i = 0; i < millisec; i++) {
+		iop_intr_mv(hba);
+		if (hba->msg_done)
+			return 0;
+		msleep(1);
+	}
+	return -1;
+}
+
+static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg)
+{
+	writel(msg, &hba->u.itl.iop->inbound_msgaddr0);
+	readl(&hba->u.itl.iop->outbound_intstatus);
+}
+
+static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg)
+{
+	writel(msg, &hba->u.mv.mu->inbound_msg);
+	writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell);
+	readl(&hba->u.mv.regs->inbound_doorbell);
+}
 
-	writel(msg, &hba->iop->inbound_msgaddr0);
+static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
+{
+	u32 i;
 
-	hptiop_pci_posting_flush(hba->iop);
+	hba->msg_done = 0;
+	hba->ops->post_msg(hba, msg);
 
 	for (i = 0; i < millisec; i++) {
 		spin_lock_irq(hba->host->host_lock);
-		__iop_intr(hba);
+		hba->ops->iop_intr(hba);
 		spin_unlock_irq(hba->host->host_lock);
 		if (hba->msg_done)
 			break;
@@ -181,46 +300,67 @@ static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
 	return hba->msg_done? 0 : -1;
 }
 
-static int iop_get_config(struct hptiop_hba *hba,
+static int iop_get_config_itl(struct hptiop_hba *hba,
 				struct hpt_iop_request_get_config *config)
 {
 	u32 req32;
 	struct hpt_iop_request_get_config __iomem *req;
 
-	req32 = readl(&hba->iop->inbound_queue);
+	req32 = readl(&hba->u.itl.iop->inbound_queue);
 	if (req32 == IOPMU_QUEUE_EMPTY)
 		return -1;
 
 	req = (struct hpt_iop_request_get_config __iomem *)
-			((unsigned long)hba->iop + req32);
+			((unsigned long)hba->u.itl.iop + req32);
 
 	writel(0, &req->header.flags);
 	writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
 	writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
 	writel(IOP_RESULT_PENDING, &req->header.result);
 
-	if (iop_send_sync_request(hba, req, 20000)) {
+	if (iop_send_sync_request_itl(hba, req, 20000)) {
 		dprintk("Get config send cmd failed\n");
 		return -1;
 	}
 
 	memcpy_fromio(config, req, sizeof(*config));
-	writel(req32, &hba->iop->outbound_queue);
+	writel(req32, &hba->u.itl.iop->outbound_queue);
+	return 0;
+}
+
+static int iop_get_config_mv(struct hptiop_hba *hba,
+				struct hpt_iop_request_get_config *config)
+{
+	struct hpt_iop_request_get_config *req = hba->u.mv.internal_req;
+
+	req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
+	req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG);
+	req->header.size =
+		cpu_to_le32(sizeof(struct hpt_iop_request_get_config));
+	req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
+	req->header.context = cpu_to_le64(IOP_REQUEST_TYPE_GET_CONFIG<<5);
+
+	if (iop_send_sync_request_mv(hba, 0, 20000)) {
+		dprintk("Get config send cmd failed\n");
+		return -1;
+	}
+
+	memcpy(config, req, sizeof(struct hpt_iop_request_get_config));
 	return 0;
 }
 
-static int iop_set_config(struct hptiop_hba *hba,
+static int iop_set_config_itl(struct hptiop_hba *hba,
 				struct hpt_iop_request_set_config *config)
 {
 	u32 req32;
 	struct hpt_iop_request_set_config __iomem *req;
 
-	req32 = readl(&hba->iop->inbound_queue);
+	req32 = readl(&hba->u.itl.iop->inbound_queue);
 	if (req32 == IOPMU_QUEUE_EMPTY)
 		return -1;
 
 	req = (struct hpt_iop_request_set_config __iomem *)
-			((unsigned long)hba->iop + req32);
+			((unsigned long)hba->u.itl.iop + req32);
 
 	memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
 		(u8 *)config + sizeof(struct hpt_iop_request_header),
@@ -232,22 +372,52 @@ static int iop_set_config(struct hptiop_hba *hba,
 	writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
 	writel(IOP_RESULT_PENDING, &req->header.result);
 
-	if (iop_send_sync_request(hba, req, 20000)) {
+	if (iop_send_sync_request_itl(hba, req, 20000)) {
 		dprintk("Set config send cmd failed\n");
 		return -1;
 	}
 
-	writel(req32, &hba->iop->outbound_queue);
+	writel(req32, &hba->u.itl.iop->outbound_queue);
 	return 0;
 }
 
-static int hptiop_initialize_iop(struct hptiop_hba *hba)
+static int iop_set_config_mv(struct hptiop_hba *hba,
+				struct hpt_iop_request_set_config *config)
 {
-	struct hpt_iopmu __iomem *iop = hba->iop;
+	struct hpt_iop_request_set_config *req = hba->u.mv.internal_req;
 
-	/* enable interrupts */
+	memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
+	req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
+	req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
+	req->header.size =
+		cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
+	req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
+	req->header.context = cpu_to_le64(IOP_REQUEST_TYPE_SET_CONFIG<<5);
+
+	if (iop_send_sync_request_mv(hba, 0, 20000)) {
+		dprintk("Set config send cmd failed\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static void hptiop_enable_intr_itl(struct hptiop_hba *hba)
+{
 	writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
-			&iop->outbound_intmask);
+		&hba->u.itl.iop->outbound_intmask);
+}
+
+static void hptiop_enable_intr_mv(struct hptiop_hba *hba)
+{
+	writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG,
+		&hba->u.mv.regs->outbound_intmask);
+}
+
+static int hptiop_initialize_iop(struct hptiop_hba *hba)
+{
+	/* enable interrupts */
+	hba->ops->enable_intr(hba);
 
 	hba->initialized = 1;
 
@@ -261,37 +431,74 @@ static int hptiop_initialize_iop(struct hptiop_hba *hba)
 	return 0;
 }
 
-static int hptiop_map_pci_bar(struct hptiop_hba *hba)
+static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
 {
 	u32 mem_base_phy, length;
 	void __iomem *mem_base_virt;
+
 	struct pci_dev *pcidev = hba->pcidev;
 
-	if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) {
+
+	if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
 		printk(KERN_ERR "scsi%d: pci resource invalid\n",
 				hba->host->host_no);
-		return -1;
+		return 0;
 	}
 
-	mem_base_phy = pci_resource_start(pcidev, 0);
-	length = pci_resource_len(pcidev, 0);
+	mem_base_phy = pci_resource_start(pcidev, index);
+	length = pci_resource_len(pcidev, index);
 	mem_base_virt = ioremap(mem_base_phy, length);
 
 	if (!mem_base_virt) {
 		printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
 				hba->host->host_no);
+		return 0;
+	}
+	return mem_base_virt;
+}
+
+static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
+{
+	hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
+	if (hba->u.itl.iop)
+		return 0;
+	else
+		return -1;
+}
+
+static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
+{
+	iounmap(hba->u.itl.iop);
+}
+
+static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
+{
+	hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
+	if (hba->u.mv.regs == 0)
+		return -1;
+
+	hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
+	if (hba->u.mv.mu == 0) {
+		iounmap(hba->u.mv.regs);
 		return -1;
 	}
 
-	hba->iop = mem_base_virt;
-	dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop);
 	return 0;
 }
 
+static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba)
+{
+	iounmap(hba->u.mv.regs);
+	iounmap(hba->u.mv.mu);
+}
+
 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
 {
 	dprintk("iop message 0x%x\n", msg);
 
+	if (msg == IOPMU_INBOUND_MSG0_NOP)
+		hba->msg_done = 1;
+
 	if (!hba->initialized)
 		return;
 
@@ -303,7 +510,7 @@ static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
 		hba->msg_done = 1;
 }
 
-static inline struct hptiop_request *get_req(struct hptiop_hba *hba)
+static struct hptiop_request *get_req(struct hptiop_hba *hba)
 {
 	struct hptiop_request *ret;
 
@@ -316,30 +523,19 @@ static inline struct hptiop_request *get_req(struct hptiop_hba *hba)
 	return ret;
 }
 
-static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
+static void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
 {
 	dprintk("free_req(%d, %p)\n", req->index, req);
 	req->next = hba->req_list;
 	hba->req_list = req;
 }
 
-static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 _tag)
+static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
+				struct hpt_iop_request_scsi_command *req)
 {
-	struct hpt_iop_request_scsi_command *req;
 	struct scsi_cmnd *scp;
-	u32 tag;
-
-	if (hba->iopintf_v2) {
-		tag = _tag & ~ IOPMU_QUEUE_REQUEST_RESULT_BIT;
-		req = hba->reqs[tag].req_virt;
-		if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
-			req->header.result = IOP_RESULT_SUCCESS;
-	} else {
-		tag = _tag;
-		req = hba->reqs[tag].req_virt;
-	}
 
-	dprintk("hptiop_host_request_callback: req=%p, type=%d, "
+	dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
 			"result=%d, context=0x%x tag=%d\n",
 			req, req->header.type, req->header.result,
 			req->header.context, tag);
@@ -354,6 +550,8 @@ static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 _tag)
 
 	switch (le32_to_cpu(req->header.result)) {
 	case IOP_RESULT_SUCCESS:
+		scsi_set_resid(scp,
+			scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 		scp->result = (DID_OK<<16);
 		break;
 	case IOP_RESULT_BAD_TARGET:
@@ -371,12 +569,12 @@ static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 _tag)
 	case IOP_RESULT_INVALID_REQUEST:
 		scp->result = (DID_ABORT<<16);
 		break;
-	case IOP_RESULT_MODE_SENSE_CHECK_CONDITION:
+	case IOP_RESULT_CHECK_CONDITION:
+		scsi_set_resid(scp,
+			scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
 		scp->result = SAM_STAT_CHECK_CONDITION;
-		memset(&scp->sense_buffer,
-				0, sizeof(scp->sense_buffer));
 		memcpy(&scp->sense_buffer, &req->sg_list,
-				min(sizeof(scp->sense_buffer),
+				min_t(size_t, SCSI_SENSE_BUFFERSIZE,
 					le32_to_cpu(req->dataxfer_length)));
 		break;
 
@@ -391,15 +589,33 @@ static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 _tag)
 	free_req(hba, &hba->reqs[tag]);
 }
 
-void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag)
+static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
+{
+	struct hpt_iop_request_scsi_command *req;
+	u32 tag;
+
+	if (hba->iopintf_v2) {
+		tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
+		req = hba->reqs[tag].req_virt;
+		if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
+			req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
+	} else {
+		tag = _tag;
+		req = hba->reqs[tag].req_virt;
+	}
+
+	hptiop_finish_scsi_req(hba, tag, req);
+}
+
+void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
 {
 	struct hpt_iop_request_header __iomem *req;
 	struct hpt_iop_request_ioctl_command __iomem *p;
 	struct hpt_ioctl_k *arg;
 
 	req = (struct hpt_iop_request_header __iomem *)
-			((unsigned long)hba->iop + tag);
-	dprintk("hptiop_iop_request_callback: req=%p, type=%d, "
+			((unsigned long)hba->u.itl.iop + tag);
+	dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
 			"result=%d, context=0x%x tag=%d\n",
 			req, readl(&req->type), readl(&req->result),
 			readl(&req->context), tag);
@@ -427,7 +643,7 @@ void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag)
 		arg->result = HPT_IOCTL_RESULT_FAILED;
 
 	arg->done(arg);
-	writel(tag, &hba->iop->outbound_queue);
+	writel(tag, &hba->u.itl.iop->outbound_queue);
 }
 
 static irqreturn_t hptiop_intr(int irq, void *dev_id)
@@ -437,7 +653,7 @@ static irqreturn_t hptiop_intr(int irq, void *dev_id)
 	unsigned long flags;
 
 	spin_lock_irqsave(hba->host->host_lock, flags);
-	handled = __iop_intr(hba);
+	handled = hba->ops->iop_intr(hba);
 	spin_unlock_irqrestore(hba->host->host_lock, flags);
 
 	return handled;
@@ -469,6 +685,57 @@ static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
 	return HPT_SCP(scp)->sgcnt;
 }
 
+static void hptiop_post_req_itl(struct hptiop_hba *hba,
+					struct hptiop_request *_req)
+{
+	struct hpt_iop_request_header *reqhdr = _req->req_virt;
+
+	reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
+							(u32)_req->index);
+	reqhdr->context_hi32 = 0;
+
+	if (hba->iopintf_v2) {
+		u32 size, size_bits;
+
+		size = le32_to_cpu(reqhdr->size);
+		if (size < 256)
+			size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
+		else if (size < 512)
+			size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
+		else
+			size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
+						IOPMU_QUEUE_ADDR_HOST_BIT;
+		writel(_req->req_shifted_phy | size_bits,
+			&hba->u.itl.iop->inbound_queue);
+	} else
+		writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
+					&hba->u.itl.iop->inbound_queue);
+}
+
+static void hptiop_post_req_mv(struct hptiop_hba *hba,
+					struct hptiop_request *_req)
+{
+	struct hpt_iop_request_header *reqhdr = _req->req_virt;
+	u32 size, size_bit;
+
+	reqhdr->context = cpu_to_le32(_req->index<<8 |
+					IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
+	reqhdr->context_hi32 = 0;
+	size = le32_to_cpu(reqhdr->size);
+
+	if (size <= 256)
+		size_bit = 0;
+	else if (size <= 256*2)
+		size_bit = 1;
+	else if (size <= 256*3)
+		size_bit = 2;
+	else
+		size_bit = 3;
+
+	mv_inbound_write((_req->req_shifted_phy << 5) |
+		MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
+}
+
 static int hptiop_queuecommand(struct scsi_cmnd *scp,
 				void (*done)(struct scsi_cmnd *))
 {
@@ -518,9 +785,6 @@ static int hptiop_queuecommand(struct scsi_cmnd *scp,
 	req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
 	req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
 	req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
-	req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
-							(u32)_req->index);
-	req->header.context_hi32 = 0;
 	req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
 	req->channel = scp->device->channel;
 	req->target = scp->device->id;
@@ -531,21 +795,7 @@ static int hptiop_queuecommand(struct scsi_cmnd *scp,
 				 + sg_count * sizeof(struct hpt_iopsg));
 
 	memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
-
-	if (hba->iopintf_v2) {
-		u32 size_bits;
-		if (req->header.size < 256)
-			size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
-		else if (req->header.size < 512)
-			size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
-		else
-			size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
-						IOPMU_QUEUE_ADDR_HOST_BIT;
-		writel(_req->req_shifted_phy | size_bits, &hba->iop->inbound_queue);
-	} else
-		writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
-					&hba->iop->inbound_queue);
-
+	hba->ops->post_req(hba, _req);
 	return 0;
 
 cmd_done:
@@ -563,9 +813,7 @@ static int hptiop_reset_hba(struct hptiop_hba *hba)
 {
 	if (atomic_xchg(&hba->resetting, 1) == 0) {
 		atomic_inc(&hba->reset_count);
-		writel(IOPMU_INBOUND_MSG0_RESET,
-				&hba->iop->inbound_msgaddr0);
-		hptiop_pci_posting_flush(hba->iop);
+		hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
 	}
 
 	wait_event_timeout(hba->reset_wq,
@@ -601,8 +849,10 @@ static int hptiop_reset(struct scsi_cmnd *scp)
 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
 						int queue_depth)
 {
-	if(queue_depth > 256)
-		queue_depth = 256;
+	struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
+
+	if (queue_depth > hba->max_requests)
+		queue_depth = hba->max_requests;
 	scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
 	return queue_depth;
 }
@@ -663,6 +913,26 @@ static struct scsi_host_template driver_template = {
 	.change_queue_depth         = hptiop_adjust_disk_queue_depth,
 };
 
+static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
+{
+	hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
+			0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
+	if (hba->u.mv.internal_req)
+		return 0;
+	else
+		return -1;
+}
+
+static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
+{
+	if (hba->u.mv.internal_req) {
+		dma_free_coherent(&hba->pcidev->dev, 0x800,
+			hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
+		return 0;
+	} else
+		return -1;
+}
+
 static int __devinit hptiop_probe(struct pci_dev *pcidev,
 					const struct pci_device_id *id)
 {
@@ -708,6 +978,7 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 
 	hba = (struct hptiop_hba *)host->hostdata;
 
+	hba->ops = (struct hptiop_adapter_ops *)id->driver_data;
 	hba->pcidev = pcidev;
 	hba->host = host;
 	hba->initialized = 0;
@@ -725,16 +996,24 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 	host->n_io_port = 0;
 	host->irq = pcidev->irq;
 
-	if (hptiop_map_pci_bar(hba))
+	if (hba->ops->map_pci_bar(hba))
 		goto free_scsi_host;
 
-	if (iop_wait_ready(hba->iop, 20000)) {
+	if (hba->ops->iop_wait_ready(hba, 20000)) {
 		printk(KERN_ERR "scsi%d: firmware not ready\n",
 				hba->host->host_no);
 		goto unmap_pci_bar;
 	}
 
-	if (iop_get_config(hba, &iop_config)) {
+	if (hba->ops->internal_memalloc) {
+		if (hba->ops->internal_memalloc(hba)) {
+			printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
+				hba->host->host_no);
+			goto unmap_pci_bar;
+		}
+	}
+
+	if (hba->ops->get_config(hba, &iop_config)) {
 		printk(KERN_ERR "scsi%d: get config failed\n",
 				hba->host->host_no);
 		goto unmap_pci_bar;
@@ -770,7 +1049,7 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 	set_config.vbus_id = cpu_to_le16(host->host_no);
 	set_config.max_host_request_size = cpu_to_le16(req_size);
 
-	if (iop_set_config(hba, &set_config)) {
+	if (hba->ops->set_config(hba, &set_config)) {
 		printk(KERN_ERR "scsi%d: set config failed\n",
 				hba->host->host_no);
 		goto unmap_pci_bar;
@@ -839,21 +1118,24 @@ static int __devinit hptiop_probe(struct pci_dev *pcidev,
 
 free_request_mem:
 	dma_free_coherent(&hba->pcidev->dev,
-			hba->req_size*hba->max_requests + 0x20,
+			hba->req_size * hba->max_requests + 0x20,
 			hba->dma_coherent, hba->dma_coherent_handle);
 
 free_request_irq:
 	free_irq(hba->pcidev->irq, hba);
 
 unmap_pci_bar:
-	iounmap(hba->iop);
+	if (hba->ops->internal_memfree)
+		hba->ops->internal_memfree(hba);
 
-free_pci_regions:
-	pci_release_regions(pcidev) ;
+	hba->ops->unmap_pci_bar(hba);
 
 free_scsi_host:
 	scsi_host_put(host);
 
+free_pci_regions:
+	pci_release_regions(pcidev);
+
 disable_pci_device:
 	pci_disable_device(pcidev);
 
@@ -865,8 +1147,6 @@ static void hptiop_shutdown(struct pci_dev *pcidev)
 {
 	struct Scsi_Host *host = pci_get_drvdata(pcidev);
 	struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
-	struct hpt_iopmu __iomem *iop = hba->iop;
-	u32    int_mask;
 
 	dprintk("hptiop_shutdown(%p)\n", hba);
 
@@ -876,11 +1156,24 @@ static void hptiop_shutdown(struct pci_dev *pcidev)
 					hba->host->host_no);
 
 	/* disable all outbound interrupts */
-	int_mask = readl(&iop->outbound_intmask);
+	hba->ops->disable_intr(hba);
+}
+
+static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
+{
+	u32 int_mask;
+
+	int_mask = readl(&hba->u.itl.iop->outbound_intmask);
 	writel(int_mask |
 		IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
-		&iop->outbound_intmask);
-	hptiop_pci_posting_flush(iop);
+		&hba->u.itl.iop->outbound_intmask);
+	readl(&hba->u.itl.iop->outbound_intmask);
+}
+
+static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
+{
+	writel(0, &hba->u.mv.regs->outbound_intmask);
+	readl(&hba->u.mv.regs->outbound_intmask);
 }
 
 static void hptiop_remove(struct pci_dev *pcidev)
@@ -901,7 +1194,10 @@ static void hptiop_remove(struct pci_dev *pcidev)
 			hba->dma_coherent,
 			hba->dma_coherent_handle);
 
-	iounmap(hba->iop);
+	if (hba->ops->internal_memfree)
+		hba->ops->internal_memfree(hba);
+
+	hba->ops->unmap_pci_bar(hba);
 
 	pci_release_regions(hba->pcidev);
 	pci_set_drvdata(hba->pcidev, NULL);
@@ -910,11 +1206,50 @@ static void hptiop_remove(struct pci_dev *pcidev)
 	scsi_host_put(host);
 }
 
+static struct hptiop_adapter_ops hptiop_itl_ops = {
+	.iop_wait_ready    = iop_wait_ready_itl,
+	.internal_memalloc = 0,
+	.internal_memfree  = 0,
+	.map_pci_bar       = hptiop_map_pci_bar_itl,
+	.unmap_pci_bar     = hptiop_unmap_pci_bar_itl,
+	.enable_intr       = hptiop_enable_intr_itl,
+	.disable_intr      = hptiop_disable_intr_itl,
+	.get_config        = iop_get_config_itl,
+	.set_config        = iop_set_config_itl,
+	.iop_intr          = iop_intr_itl,
+	.post_msg          = hptiop_post_msg_itl,
+	.post_req          = hptiop_post_req_itl,
+};
+
+static struct hptiop_adapter_ops hptiop_mv_ops = {
+	.iop_wait_ready    = iop_wait_ready_mv,
+	.internal_memalloc = hptiop_internal_memalloc_mv,
+	.internal_memfree  = hptiop_internal_memfree_mv,
+	.map_pci_bar       = hptiop_map_pci_bar_mv,
+	.unmap_pci_bar     = hptiop_unmap_pci_bar_mv,
+	.enable_intr       = hptiop_enable_intr_mv,
+	.disable_intr      = hptiop_disable_intr_mv,
+	.get_config        = iop_get_config_mv,
+	.set_config        = iop_set_config_mv,
+	.iop_intr          = iop_intr_mv,
+	.post_msg          = hptiop_post_msg_mv,
+	.post_req          = hptiop_post_req_mv,
+};
+
 static struct pci_device_id hptiop_id_table[] = {
-	{ PCI_VDEVICE(TTI, 0x3220) },
-	{ PCI_VDEVICE(TTI, 0x3320) },
-	{ PCI_VDEVICE(TTI, 0x3520) },
-	{ PCI_VDEVICE(TTI, 0x4320) },
+	{ PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
+	{ PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
+	{ PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
+	{ PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
 	{},
 };
 

drivers/scsi/hptiop.h

@@ -1,5 +1,5 @@
 /*
- * HighPoint RR3xxx controller driver for Linux
+ * HighPoint RR3xxx/4xxx controller driver for Linux
  * Copyright (C) 2006-2007 HighPoint Technologies, Inc. All Rights Reserved.
  *
  * This program is free software; you can redistribute it and/or modify
@@ -18,8 +18,7 @@
 #ifndef _HPTIOP_H_
 #define _HPTIOP_H_
 
-struct hpt_iopmu
-{
+struct hpt_iopmu_itl {
 	__le32 resrved0[4];
 	__le32 inbound_msgaddr0;
 	__le32 inbound_msgaddr1;
@@ -54,6 +53,40 @@ struct hpt_iopmu
 #define IOPMU_INBOUND_INT_ERROR      8
 #define IOPMU_INBOUND_INT_POSTQUEUE  0x10
 
+#define MVIOP_QUEUE_LEN  512
+
+struct hpt_iopmu_mv {
+	__le32 inbound_head;
+	__le32 inbound_tail;
+	__le32 outbound_head;
+	__le32 outbound_tail;
+	__le32 inbound_msg;
+	__le32 outbound_msg;
+	__le32 reserve[10];
+	__le64 inbound_q[MVIOP_QUEUE_LEN];
+	__le64 outbound_q[MVIOP_QUEUE_LEN];
+};
+
+struct hpt_iopmv_regs {
+	__le32 reserved[0x20400 / 4];
+	__le32 inbound_doorbell;
+	__le32 inbound_intmask;
+	__le32 outbound_doorbell;
+	__le32 outbound_intmask;
+};
+
+#define MVIOP_MU_QUEUE_ADDR_HOST_MASK   (~(0x1full))
+#define MVIOP_MU_QUEUE_ADDR_HOST_BIT    4
+
+#define MVIOP_MU_QUEUE_ADDR_IOP_HIGH32  0xffffffff
+#define MVIOP_MU_QUEUE_REQUEST_RESULT_BIT   1
+#define MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT 2
+
+#define MVIOP_MU_INBOUND_INT_MSG        1
+#define MVIOP_MU_INBOUND_INT_POSTQUEUE  2
+#define MVIOP_MU_OUTBOUND_INT_MSG       1
+#define MVIOP_MU_OUTBOUND_INT_POSTQUEUE 2
+
 enum hpt_iopmu_message {
 	/* host-to-iop messages */
 	IOPMU_INBOUND_MSG0_NOP = 0,
@@ -72,8 +105,7 @@ enum hpt_iopmu_message {
 	IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
 };
 
-struct hpt_iop_request_header
-{
+struct hpt_iop_request_header {
 	__le32 size;
 	__le32 type;
 	__le32 flags;
@@ -104,11 +136,10 @@ enum hpt_iop_result_type {
 	IOP_RESULT_RESET,
 	IOP_RESULT_INVALID_REQUEST,
 	IOP_RESULT_BAD_TARGET,
-	IOP_RESULT_MODE_SENSE_CHECK_CONDITION,
+	IOP_RESULT_CHECK_CONDITION,
 };
 
-struct hpt_iop_request_get_config
-{
+struct hpt_iop_request_get_config {
 	struct hpt_iop_request_header header;
 	__le32 interface_version;
 	__le32 firmware_version;
@@ -121,8 +152,7 @@ struct hpt_iop_request_get_config
 	__le32 sdram_size;
 };
 
-struct hpt_iop_request_set_config
-{
+struct hpt_iop_request_set_config {
 	struct hpt_iop_request_header header;
 	__le32 iop_id;
 	__le16 vbus_id;
@@ -130,15 +160,13 @@ struct hpt_iop_request_set_config
 	__le32 reserve[6];
 };
 
-struct hpt_iopsg
-{
+struct hpt_iopsg {
 	__le32 size;
 	__le32 eot; /* non-zero: end of table */
 	__le64 pci_address;
 };
 
-struct hpt_iop_request_block_command
-{
+struct hpt_iop_request_block_command {
 	struct hpt_iop_request_header header;
 	u8     channel;
 	u8     target;
@@ -156,8 +184,7 @@ struct hpt_iop_request_block_command
 #define IOP_BLOCK_COMMAND_FLUSH    4
 #define IOP_BLOCK_COMMAND_SHUTDOWN 5
 
-struct hpt_iop_request_scsi_command
-{
+struct hpt_iop_request_scsi_command {
 	struct hpt_iop_request_header header;
 	u8     channel;
 	u8     target;
@@ -168,8 +195,7 @@ struct hpt_iop_request_scsi_command
 	struct hpt_iopsg sg_list[1];
 };
 
-struct hpt_iop_request_ioctl_command
-{
+struct hpt_iop_request_ioctl_command {
 	struct hpt_iop_request_header header;
 	__le32 ioctl_code;
 	__le32 inbuf_size;
@@ -182,11 +208,11 @@ struct hpt_iop_request_ioctl_command
 #define HPTIOP_MAX_REQUESTS  256u
 
 struct hptiop_request {
-	struct hptiop_request * next;
-	void *                  req_virt;
-	u32                     req_shifted_phy;
-	struct scsi_cmnd *      scp;
-	int                     index;
+	struct hptiop_request *next;
+	void                  *req_virt;
+	u32                   req_shifted_phy;
+	struct scsi_cmnd      *scp;
+	int                   index;
 };
 
 struct hpt_scsi_pointer {
@@ -198,9 +224,21 @@ struct hpt_scsi_pointer {
 #define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
 
 struct hptiop_hba {
-	struct hpt_iopmu __iomem * iop;
-	struct Scsi_Host * host;
-	struct pci_dev * pcidev;
+	struct hptiop_adapter_ops *ops;
+	union {
+		struct {
+			struct hpt_iopmu_itl __iomem *iop;
+		} itl;
+		struct {
+			struct hpt_iopmv_regs *regs;
+			struct hpt_iopmu_mv __iomem *mu;
+			void *internal_req;
+			dma_addr_t internal_req_phy;
+		} mv;
+	} u;
+
+	struct Scsi_Host *host;
+	struct pci_dev *pcidev;
 
 	/* IOP config info */
 	u32     interface_version;
@@ -213,15 +251,15 @@ struct hptiop_hba {
 
 	u32     req_size; /* host-allocated request buffer size */
 
-	int     iopintf_v2: 1;
-	int     initialized: 1;
-	int     msg_done: 1;
+	u32     iopintf_v2: 1;
+	u32     initialized: 1;
+	u32     msg_done: 1;
 
 	struct hptiop_request * req_list;
 	struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
 
 	/* used to free allocated dma area */
-	void *      dma_coherent;
+	void        *dma_coherent;
 	dma_addr_t  dma_coherent_handle;
 
 	atomic_t    reset_count;
@@ -231,19 +269,35 @@ struct hptiop_hba {
 	wait_queue_head_t ioctl_wq;
 };
 
-struct hpt_ioctl_k
-{
+struct hpt_ioctl_k {
 	struct hptiop_hba * hba;
 	u32    ioctl_code;
 	u32    inbuf_size;
 	u32    outbuf_size;
-	void * inbuf;
-	void * outbuf;
-	u32  * bytes_returned;
+	void   *inbuf;
+	void   *outbuf;
+	u32    *bytes_returned;
 	void (*done)(struct hpt_ioctl_k *);
 	int    result; /* HPT_IOCTL_RESULT_ */
 };
 
+struct hptiop_adapter_ops {
+	int  (*iop_wait_ready)(struct hptiop_hba *hba, u32 millisec);
+	int  (*internal_memalloc)(struct hptiop_hba *hba);
+	int  (*internal_memfree)(struct hptiop_hba *hba);
+	int  (*map_pci_bar)(struct hptiop_hba *hba);
+	void (*unmap_pci_bar)(struct hptiop_hba *hba);
+	void (*enable_intr)(struct hptiop_hba *hba);
+	void (*disable_intr)(struct hptiop_hba *hba);
+	int  (*get_config)(struct hptiop_hba *hba,
+				struct hpt_iop_request_get_config *config);
+	int  (*set_config)(struct hptiop_hba *hba,
+				struct hpt_iop_request_set_config *config);
+	int  (*iop_intr)(struct hptiop_hba *hba);
+	void (*post_msg)(struct hptiop_hba *hba, u32 msg);
+	void (*post_req)(struct hptiop_hba *hba, struct hptiop_request *_req);
+};
+
 #define HPT_IOCTL_RESULT_OK         0
 #define HPT_IOCTL_RESULT_FAILED     (-1)
 

drivers/scsi/ibmvscsi/ibmvscsi.c

@@ -629,6 +629,16 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 		list_del(&evt_struct->list);
 		del_timer(&evt_struct->timer);
 
+		/* If send_crq returns H_CLOSED, return SCSI_MLQUEUE_HOST_BUSY.
+		 * Firmware will send a CRQ with a transport event (0xFF) to
+		 * tell this client what has happened to the transport.  This
+		 * will be handled in ibmvscsi_handle_crq()
+		 */
+		if (rc == H_CLOSED) {
+			dev_warn(hostdata->dev, "send warning. "
+			         "Receive queue closed, will retry.\n");
+			goto send_busy;
+		}
 		dev_err(hostdata->dev, "send error %d\n", rc);
 		atomic_inc(&hostdata->request_limit);
 		goto send_error;
@@ -976,58 +986,74 @@ static int ibmvscsi_eh_abort_handler(struct scsi_cmnd *cmd)
 	int rsp_rc;
 	unsigned long flags;
 	u16 lun = lun_from_dev(cmd->device);
+	unsigned long wait_switch = 0;
 
 	/* First, find this command in our sent list so we can figure
 	 * out the correct tag
 	 */
 	spin_lock_irqsave(hostdata->host->host_lock, flags);
-	found_evt = NULL;
-	list_for_each_entry(tmp_evt, &hostdata->sent, list) {
-		if (tmp_evt->cmnd == cmd) {
-			found_evt = tmp_evt;
-			break;
+	wait_switch = jiffies + (init_timeout * HZ);
+	do {
+		found_evt = NULL;
+		list_for_each_entry(tmp_evt, &hostdata->sent, list) {
+			if (tmp_evt->cmnd == cmd) {
+				found_evt = tmp_evt;
+				break;
+			}
 		}
-	}
 
-	if (!found_evt) {
-		spin_unlock_irqrestore(hostdata->host->host_lock, flags);
-		return SUCCESS;
-	}
+		if (!found_evt) {
+			spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+			return SUCCESS;
+		}
 
-	evt = get_event_struct(&hostdata->pool);
-	if (evt == NULL) {
-		spin_unlock_irqrestore(hostdata->host->host_lock, flags);
-		sdev_printk(KERN_ERR, cmd->device, "failed to allocate abort event\n");
-		return FAILED;
-	}
+		evt = get_event_struct(&hostdata->pool);
+		if (evt == NULL) {
+			spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+			sdev_printk(KERN_ERR, cmd->device,
+				"failed to allocate abort event\n");
+			return FAILED;
+		}
 	
-	init_event_struct(evt,
-			  sync_completion,
-			  VIOSRP_SRP_FORMAT,
-			  init_timeout);
+		init_event_struct(evt,
+				  sync_completion,
+				  VIOSRP_SRP_FORMAT,
+				  init_timeout);
 
-	tsk_mgmt = &evt->iu.srp.tsk_mgmt;
+		tsk_mgmt = &evt->iu.srp.tsk_mgmt;
 	
-	/* Set up an abort SRP command */
-	memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
-	tsk_mgmt->opcode = SRP_TSK_MGMT;
-	tsk_mgmt->lun = ((u64) lun) << 48;
-	tsk_mgmt->tsk_mgmt_func = SRP_TSK_ABORT_TASK;
-	tsk_mgmt->task_tag = (u64) found_evt;
-
-	sdev_printk(KERN_INFO, cmd->device, "aborting command. lun 0x%lx, tag 0x%lx\n",
-		    tsk_mgmt->lun, tsk_mgmt->task_tag);
-
-	evt->sync_srp = &srp_rsp;
-	init_completion(&evt->comp);
-	rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2);
+		/* Set up an abort SRP command */
+		memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
+		tsk_mgmt->opcode = SRP_TSK_MGMT;
+		tsk_mgmt->lun = ((u64) lun) << 48;
+		tsk_mgmt->tsk_mgmt_func = SRP_TSK_ABORT_TASK;
+		tsk_mgmt->task_tag = (u64) found_evt;
+
+		evt->sync_srp = &srp_rsp;
+
+		init_completion(&evt->comp);
+		rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2);
+
+		if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY)
+			break;
+
+		spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+		msleep(10);
+		spin_lock_irqsave(hostdata->host->host_lock, flags);
+	} while (time_before(jiffies, wait_switch));
+
 	spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+
 	if (rsp_rc != 0) {
 		sdev_printk(KERN_ERR, cmd->device,
 			    "failed to send abort() event. rc=%d\n", rsp_rc);
 		return FAILED;
 	}
 
+	sdev_printk(KERN_INFO, cmd->device,
+                    "aborting command. lun 0x%lx, tag 0x%lx\n",
+		    (((u64) lun) << 48), (u64) found_evt);
+
 	wait_for_completion(&evt->comp);
 
 	/* make sure we got a good response */
@@ -1099,41 +1125,56 @@ static int ibmvscsi_eh_device_reset_handler(struct scsi_cmnd *cmd)
 	int rsp_rc;
 	unsigned long flags;
 	u16 lun = lun_from_dev(cmd->device);
+	unsigned long wait_switch = 0;
 
 	spin_lock_irqsave(hostdata->host->host_lock, flags);
-	evt = get_event_struct(&hostdata->pool);
-	if (evt == NULL) {
-		spin_unlock_irqrestore(hostdata->host->host_lock, flags);
-		sdev_printk(KERN_ERR, cmd->device, "failed to allocate reset event\n");
-		return FAILED;
-	}
+	wait_switch = jiffies + (init_timeout * HZ);
+	do {
+		evt = get_event_struct(&hostdata->pool);
+		if (evt == NULL) {
+			spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+			sdev_printk(KERN_ERR, cmd->device,
+				"failed to allocate reset event\n");
+			return FAILED;
+		}
 	
-	init_event_struct(evt,
-			  sync_completion,
-			  VIOSRP_SRP_FORMAT,
-			  init_timeout);
+		init_event_struct(evt,
+				  sync_completion,
+				  VIOSRP_SRP_FORMAT,
+				  init_timeout);
 
-	tsk_mgmt = &evt->iu.srp.tsk_mgmt;
+		tsk_mgmt = &evt->iu.srp.tsk_mgmt;
 
-	/* Set up a lun reset SRP command */
-	memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
-	tsk_mgmt->opcode = SRP_TSK_MGMT;
-	tsk_mgmt->lun = ((u64) lun) << 48;
-	tsk_mgmt->tsk_mgmt_func = SRP_TSK_LUN_RESET;
+		/* Set up a lun reset SRP command */
+		memset(tsk_mgmt, 0x00, sizeof(*tsk_mgmt));
+		tsk_mgmt->opcode = SRP_TSK_MGMT;
+		tsk_mgmt->lun = ((u64) lun) << 48;
+		tsk_mgmt->tsk_mgmt_func = SRP_TSK_LUN_RESET;
 
-	sdev_printk(KERN_INFO, cmd->device, "resetting device. lun 0x%lx\n",
-		    tsk_mgmt->lun);
+		evt->sync_srp = &srp_rsp;
+
+		init_completion(&evt->comp);
+		rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2);
+
+		if (rsp_rc != SCSI_MLQUEUE_HOST_BUSY)
+			break;
+
+		spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+		msleep(10);
+		spin_lock_irqsave(hostdata->host->host_lock, flags);
+	} while (time_before(jiffies, wait_switch));
 
-	evt->sync_srp = &srp_rsp;
-	init_completion(&evt->comp);
-	rsp_rc = ibmvscsi_send_srp_event(evt, hostdata, init_timeout * 2);
 	spin_unlock_irqrestore(hostdata->host->host_lock, flags);
+
 	if (rsp_rc != 0) {
 		sdev_printk(KERN_ERR, cmd->device,
 			    "failed to send reset event. rc=%d\n", rsp_rc);
 		return FAILED;
 	}
 
+	sdev_printk(KERN_INFO, cmd->device, "resetting device. lun 0x%lx\n",
+		    (((u64) lun) << 48));
+
 	wait_for_completion(&evt->comp);
 
 	/* make sure we got a good response */
@@ -1386,8 +1427,10 @@ static int ibmvscsi_slave_configure(struct scsi_device *sdev)
 	unsigned long lock_flags = 0;
 
 	spin_lock_irqsave(shost->host_lock, lock_flags);
-	if (sdev->type == TYPE_DISK)
+	if (sdev->type == TYPE_DISK) {
 		sdev->allow_restart = 1;
+		sdev->timeout = 60 * HZ;
+	}
 	scsi_adjust_queue_depth(sdev, 0, shost->cmd_per_lun);
 	spin_unlock_irqrestore(shost->host_lock, lock_flags);
 	return 0;

drivers/scsi/ibmvscsi/ibmvstgt.c

@@ -292,7 +292,7 @@ static int ibmvstgt_cmd_done(struct scsi_cmnd *sc,
 	dprintk("%p %p %x %u\n", iue, target, vio_iu(iue)->srp.cmd.cdb[0],
 		cmd->usg_sg);
 
-	if (sc->use_sg)
+	if (scsi_sg_count(sc))
 		err = srp_transfer_data(sc, &vio_iu(iue)->srp.cmd, ibmvstgt_rdma, 1, 1);
 
 	spin_lock_irqsave(&target->lock, flags);

drivers/scsi/imm.c

@@ -837,19 +837,16 @@ static int imm_engine(imm_struct *dev, struct scsi_cmnd *cmd)
 
 		/* Phase 4 - Setup scatter/gather buffers */
 	case 4:
-		if (cmd->use_sg) {
-			/* if many buffers are available, start filling the first */
-			cmd->SCp.buffer =
-			    (struct scatterlist *) cmd->request_buffer;
+		if (scsi_bufflen(cmd)) {
+			cmd->SCp.buffer = scsi_sglist(cmd);
 			cmd->SCp.this_residual = cmd->SCp.buffer->length;
 			cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 		} else {
-			/* else fill the only available buffer */
 			cmd->SCp.buffer = NULL;
-			cmd->SCp.this_residual = cmd->request_bufflen;
-			cmd->SCp.ptr = cmd->request_buffer;
+			cmd->SCp.this_residual = 0;
+			cmd->SCp.ptr = NULL;
 		}
-		cmd->SCp.buffers_residual = cmd->use_sg - 1;
+		cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
 		cmd->SCp.phase++;
 		if (cmd->SCp.this_residual & 0x01)
 			cmd->SCp.this_residual++;

drivers/scsi/in2000.c

@@ -369,16 +369,16 @@ static int in2000_queuecommand(Scsi_Cmnd * cmd, void (*done) (Scsi_Cmnd *))
  *  - SCp.phase records this command's SRCID_ER bit setting
  */
 
-	if (cmd->use_sg) {
-		cmd->SCp.buffer = (struct scatterlist *) cmd->request_buffer;
-		cmd->SCp.buffers_residual = cmd->use_sg - 1;
+	if (scsi_bufflen(cmd)) {
+		cmd->SCp.buffer = scsi_sglist(cmd);
+		cmd->SCp.buffers_residual = scsi_sg_count(cmd) - 1;
 		cmd->SCp.ptr = sg_virt(cmd->SCp.buffer);
 		cmd->SCp.this_residual = cmd->SCp.buffer->length;
 	} else {
 		cmd->SCp.buffer = NULL;
 		cmd->SCp.buffers_residual = 0;
-		cmd->SCp.ptr = (char *) cmd->request_buffer;
-		cmd->SCp.this_residual = cmd->request_bufflen;
+		cmd->SCp.ptr = NULL;
+		cmd->SCp.this_residual = 0;
 	}
 	cmd->SCp.have_data_in = 0;
 

drivers/scsi/ipr.c

@@ -84,7 +84,7 @@
 /*
  *   Global Data
  */
-static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head);
+static LIST_HEAD(ipr_ioa_head);
 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
 static unsigned int ipr_max_speed = 1;
 static int ipr_testmode = 0;

drivers/scsi/ips.c

@@ -389,17 +389,17 @@ static struct  pci_device_id  ips_pci_table[] = {
 MODULE_DEVICE_TABLE( pci, ips_pci_table );
 
 static char ips_hot_plug_name[] = "ips";
-   
+
 static int __devinit  ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent);
 static void __devexit ips_remove_device(struct pci_dev *pci_dev);
-   
+
 static struct pci_driver ips_pci_driver = {
 	.name		= ips_hot_plug_name,
 	.id_table	= ips_pci_table,
 	.probe		= ips_insert_device,
 	.remove		= __devexit_p(ips_remove_device),
 };
-           
+
 
 /*
  * Necessary forward function protoypes
@@ -587,7 +587,7 @@ static void
 ips_setup_funclist(ips_ha_t * ha)
 {
 
-	/*                                
+	/*
 	 * Setup Functions
 	 */
 	if (IPS_IS_MORPHEUS(ha) || IPS_IS_MARCO(ha)) {
@@ -702,12 +702,8 @@ ips_release(struct Scsi_Host *sh)
 	/* free extra memory */
 	ips_free(ha);
 
-	/* Free I/O Region */
-	if (ha->io_addr)
-		release_region(ha->io_addr, ha->io_len);
-
 	/* free IRQ */
-	free_irq(ha->irq, ha);
+	free_irq(ha->pcidev->irq, ha);
 
 	scsi_host_put(sh);
 
@@ -1637,7 +1633,7 @@ ips_make_passthru(ips_ha_t *ha, struct scsi_cmnd *SC, ips_scb_t *scb, int intr)
 				return (IPS_FAILURE);
 			}
 
-			if (ha->device_id == IPS_DEVICEID_COPPERHEAD &&
+			if (ha->pcidev->device == IPS_DEVICEID_COPPERHEAD &&
 			    pt->CoppCP.cmd.flashfw.op_code ==
 			    IPS_CMD_RW_BIOSFW) {
 				ret = ips_flash_copperhead(ha, pt, scb);
@@ -2021,7 +2017,7 @@ ips_cleanup_passthru(ips_ha_t * ha, ips_scb_t * scb)
 	pt->ExtendedStatus = scb->extended_status;
 	pt->AdapterType = ha->ad_type;
 
-	if (ha->device_id == IPS_DEVICEID_COPPERHEAD &&
+	if (ha->pcidev->device == IPS_DEVICEID_COPPERHEAD &&
 	    (scb->cmd.flashfw.op_code == IPS_CMD_DOWNLOAD ||
 	     scb->cmd.flashfw.op_code == IPS_CMD_RW_BIOSFW))
 		ips_free_flash_copperhead(ha);
@@ -2075,13 +2071,13 @@ ips_host_info(ips_ha_t * ha, char *ptr, off_t offset, int len)
 			  ha->mem_ptr);
 	}
 
-	copy_info(&info, "\tIRQ number                        : %d\n", ha->irq);
+	copy_info(&info, "\tIRQ number                        : %d\n", ha->pcidev->irq);
 
     /* For the Next 3 lines Check for Binary 0 at the end and don't include it if it's there. */
     /* That keeps everything happy for "text" operations on the proc file.                    */
 
 	if (le32_to_cpu(ha->nvram->signature) == IPS_NVRAM_P5_SIG) {
-        if (ha->nvram->bios_low[3] == 0) { 
+	if (ha->nvram->bios_low[3] == 0) {
             copy_info(&info,
 			          "\tBIOS Version                      : %c%c%c%c%c%c%c\n",
 			          ha->nvram->bios_high[0], ha->nvram->bios_high[1],
@@ -2232,31 +2228,31 @@ ips_identify_controller(ips_ha_t * ha)
 {
 	METHOD_TRACE("ips_identify_controller", 1);
 
-	switch (ha->device_id) {
+	switch (ha->pcidev->device) {
 	case IPS_DEVICEID_COPPERHEAD:
-		if (ha->revision_id <= IPS_REVID_SERVERAID) {
+		if (ha->pcidev->revision <= IPS_REVID_SERVERAID) {
 			ha->ad_type = IPS_ADTYPE_SERVERAID;
-		} else if (ha->revision_id == IPS_REVID_SERVERAID2) {
+		} else if (ha->pcidev->revision == IPS_REVID_SERVERAID2) {
 			ha->ad_type = IPS_ADTYPE_SERVERAID2;
-		} else if (ha->revision_id == IPS_REVID_NAVAJO) {
+		} else if (ha->pcidev->revision == IPS_REVID_NAVAJO) {
 			ha->ad_type = IPS_ADTYPE_NAVAJO;
-		} else if ((ha->revision_id == IPS_REVID_SERVERAID2)
+		} else if ((ha->pcidev->revision == IPS_REVID_SERVERAID2)
 			   && (ha->slot_num == 0)) {
 			ha->ad_type = IPS_ADTYPE_KIOWA;
-		} else if ((ha->revision_id >= IPS_REVID_CLARINETP1) &&
-			   (ha->revision_id <= IPS_REVID_CLARINETP3)) {
+		} else if ((ha->pcidev->revision >= IPS_REVID_CLARINETP1) &&
+			   (ha->pcidev->revision <= IPS_REVID_CLARINETP3)) {
 			if (ha->enq->ucMaxPhysicalDevices == 15)
 				ha->ad_type = IPS_ADTYPE_SERVERAID3L;
 			else
 				ha->ad_type = IPS_ADTYPE_SERVERAID3;
-		} else if ((ha->revision_id >= IPS_REVID_TROMBONE32) &&
-			   (ha->revision_id <= IPS_REVID_TROMBONE64)) {
+		} else if ((ha->pcidev->revision >= IPS_REVID_TROMBONE32) &&
+			   (ha->pcidev->revision <= IPS_REVID_TROMBONE64)) {
 			ha->ad_type = IPS_ADTYPE_SERVERAID4H;
 		}
 		break;
 
 	case IPS_DEVICEID_MORPHEUS:
-		switch (ha->subdevice_id) {
+		switch (ha->pcidev->subsystem_device) {
 		case IPS_SUBDEVICEID_4L:
 			ha->ad_type = IPS_ADTYPE_SERVERAID4L;
 			break;
@@ -2285,7 +2281,7 @@ ips_identify_controller(ips_ha_t * ha)
 		break;
 
 	case IPS_DEVICEID_MARCO:
-		switch (ha->subdevice_id) {
+		switch (ha->pcidev->subsystem_device) {
 		case IPS_SUBDEVICEID_6M:
 			ha->ad_type = IPS_ADTYPE_SERVERAID6M;
 			break;
@@ -2332,20 +2328,20 @@ ips_get_bios_version(ips_ha_t * ha, int intr)
 
 	strncpy(ha->bios_version, "       ?", 8);
 
-	if (ha->device_id == IPS_DEVICEID_COPPERHEAD) {
+	if (ha->pcidev->device == IPS_DEVICEID_COPPERHEAD) {
 		if (IPS_USE_MEMIO(ha)) {
 			/* Memory Mapped I/O */
 
 			/* test 1st byte */
 			writel(0, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0x55)
 				return;
 
 			writel(1, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0xAA)
@@ -2353,20 +2349,20 @@ ips_get_bios_version(ips_ha_t * ha, int intr)
 
 			/* Get Major version */
 			writel(0x1FF, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			major = readb(ha->mem_ptr + IPS_REG_FLDP);
 
 			/* Get Minor version */
 			writel(0x1FE, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 			minor = readb(ha->mem_ptr + IPS_REG_FLDP);
 
 			/* Get SubMinor version */
 			writel(0x1FD, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 			subminor = readb(ha->mem_ptr + IPS_REG_FLDP);
 
@@ -2375,14 +2371,14 @@ ips_get_bios_version(ips_ha_t * ha, int intr)
 
 			/* test 1st byte */
 			outl(0, ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			if (inb(ha->io_addr + IPS_REG_FLDP) != 0x55)
 				return;
 
 			outl(cpu_to_le32(1), ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			if (inb(ha->io_addr + IPS_REG_FLDP) != 0xAA)
@@ -2390,21 +2386,21 @@ ips_get_bios_version(ips_ha_t * ha, int intr)
 
 			/* Get Major version */
 			outl(cpu_to_le32(0x1FF), ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			major = inb(ha->io_addr + IPS_REG_FLDP);
 
 			/* Get Minor version */
 			outl(cpu_to_le32(0x1FE), ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			minor = inb(ha->io_addr + IPS_REG_FLDP);
 
 			/* Get SubMinor version */
 			outl(cpu_to_le32(0x1FD), ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			subminor = inb(ha->io_addr + IPS_REG_FLDP);
@@ -2740,8 +2736,6 @@ ips_next(ips_ha_t * ha, int intr)
 		SC->result = DID_OK;
 		SC->host_scribble = NULL;
 
-		memset(SC->sense_buffer, 0, sizeof (SC->sense_buffer));
-
 		scb->target_id = SC->device->id;
 		scb->lun = SC->device->lun;
 		scb->bus = SC->device->channel;
@@ -2780,10 +2774,11 @@ ips_next(ips_ha_t * ha, int intr)
 		scb->dcdb.cmd_attribute =
 		    ips_command_direction[scb->scsi_cmd->cmnd[0]];
 
-        /* Allow a WRITE BUFFER Command to Have no Data */
-        /* This is Used by Tape Flash Utilites          */
-        if ((scb->scsi_cmd->cmnd[0] == WRITE_BUFFER) && (scb->data_len == 0)) 
-            scb->dcdb.cmd_attribute = 0;                  
+		/* Allow a WRITE BUFFER Command to Have no Data */
+		/* This is Used by Tape Flash Utilites          */
+		if ((scb->scsi_cmd->cmnd[0] == WRITE_BUFFER) &&
+				(scb->data_len == 0))
+			scb->dcdb.cmd_attribute = 0;
 
 		if (!(scb->dcdb.cmd_attribute & 0x3))
 			scb->dcdb.transfer_length = 0;
@@ -3404,7 +3399,7 @@ ips_map_status(ips_ha_t * ha, ips_scb_t * scb, ips_stat_t * sp)
 
 				/* Restrict access to physical DASD */
 				if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
-				    ips_scmd_buf_read(scb->scsi_cmd, 
+				    ips_scmd_buf_read(scb->scsi_cmd,
                                       &inquiryData, sizeof (inquiryData));
  				    if ((inquiryData.DeviceType & 0x1f) == TYPE_DISK) {
 				        errcode = DID_TIME_OUT;
@@ -3438,13 +3433,11 @@ ips_map_status(ips_ha_t * ha, ips_scb_t * scb, ips_stat_t * sp)
 					    (IPS_DCDB_TABLE_TAPE *) & scb->dcdb;
 					memcpy(scb->scsi_cmd->sense_buffer,
 					       tapeDCDB->sense_info,
-					       sizeof (scb->scsi_cmd->
-						       sense_buffer));
+					       SCSI_SENSE_BUFFERSIZE);
 				} else {
 					memcpy(scb->scsi_cmd->sense_buffer,
 					       scb->dcdb.sense_info,
-					       sizeof (scb->scsi_cmd->
-						       sense_buffer));
+					       SCSI_SENSE_BUFFERSIZE);
 				}
 				device_error = 2;	/* check condition */
 			}
@@ -3824,7 +3817,6 @@ ips_send_cmd(ips_ha_t * ha, ips_scb_t * scb)
 			/* attempted, a Check Condition occurred, and Sense   */
 			/* Data indicating an Invalid CDB OpCode is returned. */
 			sp = (char *) scb->scsi_cmd->sense_buffer;
-			memset(sp, 0, sizeof (scb->scsi_cmd->sense_buffer));
 
 			sp[0] = 0x70;	/* Error Code               */
 			sp[2] = ILLEGAL_REQUEST;	/* Sense Key 5 Illegal Req. */
@@ -4090,10 +4082,10 @@ ips_chkstatus(ips_ha_t * ha, IPS_STATUS * pstatus)
 			scb->scsi_cmd->result = errcode << 16;
 		} else {	/* bus == 0 */
 			/* restrict access to physical drives */
-			if (scb->scsi_cmd->cmnd[0] == INQUIRY) { 
-			    ips_scmd_buf_read(scb->scsi_cmd, 
+			if (scb->scsi_cmd->cmnd[0] == INQUIRY) {
+			    ips_scmd_buf_read(scb->scsi_cmd,
                                   &inquiryData, sizeof (inquiryData));
-			    if ((inquiryData.DeviceType & 0x1f) == TYPE_DISK) 
+			    if ((inquiryData.DeviceType & 0x1f) == TYPE_DISK)
 			        scb->scsi_cmd->result = DID_TIME_OUT << 16;
 			}
 		}		/* else */
@@ -4393,8 +4385,6 @@ ips_free(ips_ha_t * ha)
 			ha->mem_ptr = NULL;
 		}
 
-		if (ha->mem_addr)
-			release_mem_region(ha->mem_addr, ha->mem_len);
 		ha->mem_addr = 0;
 
 	}
@@ -4661,8 +4651,8 @@ ips_isinit_morpheus(ips_ha_t * ha)
 	uint32_t bits;
 
 	METHOD_TRACE("ips_is_init_morpheus", 1);
-   
-	if (ips_isintr_morpheus(ha)) 
+
+	if (ips_isintr_morpheus(ha))
 	    ips_flush_and_reset(ha);
 
 	post = readl(ha->mem_ptr + IPS_REG_I960_MSG0);
@@ -4686,7 +4676,7 @@ ips_isinit_morpheus(ips_ha_t * ha)
 /*   state ( was trying to INIT and an interrupt was already pending ) ...  */
 /*                                                                          */
 /****************************************************************************/
-static void 
+static void
 ips_flush_and_reset(ips_ha_t *ha)
 {
 	ips_scb_t *scb;
@@ -4718,9 +4708,9 @@ ips_flush_and_reset(ips_ha_t *ha)
 	    if (ret == IPS_SUCCESS) {
 	        time = 60 * IPS_ONE_SEC;	              /* Max Wait time is 60 seconds */
 	        done = 0;
-	            
+
 	        while ((time > 0) && (!done)) {
-	           done = ips_poll_for_flush_complete(ha); 	   
+		   done = ips_poll_for_flush_complete(ha);
 	           /* This may look evil, but it's only done during extremely rare start-up conditions ! */
 	           udelay(1000);
 	           time--;
@@ -4749,17 +4739,17 @@ static int
 ips_poll_for_flush_complete(ips_ha_t * ha)
 {
 	IPS_STATUS cstatus;
-    
+
 	while (TRUE) {
 	    cstatus.value = (*ha->func.statupd) (ha);
 
 	    if (cstatus.value == 0xffffffff)      /* If No Interrupt to process */
 			break;
-            
+
 	    /* Success is when we see the Flush Command ID */
-	    if (cstatus.fields.command_id == IPS_MAX_CMDS ) 
+	    if (cstatus.fields.command_id == IPS_MAX_CMDS)
 	        return 1;
-	 }	
+	 }
 
 	return 0;
 }
@@ -4903,7 +4893,7 @@ ips_init_copperhead(ips_ha_t * ha)
 	/* Enable busmastering */
 	outb(IPS_BIT_EBM, ha->io_addr + IPS_REG_SCPR);
 
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		/* fix for anaconda64 */
 		outl(0, ha->io_addr + IPS_REG_NDAE);
 
@@ -4997,7 +4987,7 @@ ips_init_copperhead_memio(ips_ha_t * ha)
 	/* Enable busmastering */
 	writeb(IPS_BIT_EBM, ha->mem_ptr + IPS_REG_SCPR);
 
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		/* fix for anaconda64 */
 		writel(0, ha->mem_ptr + IPS_REG_NDAE);
 
@@ -5142,7 +5132,7 @@ ips_reset_copperhead(ips_ha_t * ha)
 	METHOD_TRACE("ips_reset_copperhead", 1);
 
 	DEBUG_VAR(1, "(%s%d) ips_reset_copperhead: io addr: %x, irq: %d",
-		  ips_name, ha->host_num, ha->io_addr, ha->irq);
+		  ips_name, ha->host_num, ha->io_addr, ha->pcidev->irq);
 
 	reset_counter = 0;
 
@@ -5187,7 +5177,7 @@ ips_reset_copperhead_memio(ips_ha_t * ha)
 	METHOD_TRACE("ips_reset_copperhead_memio", 1);
 
 	DEBUG_VAR(1, "(%s%d) ips_reset_copperhead_memio: mem addr: %x, irq: %d",
-		  ips_name, ha->host_num, ha->mem_addr, ha->irq);
+		  ips_name, ha->host_num, ha->mem_addr, ha->pcidev->irq);
 
 	reset_counter = 0;
 
@@ -5233,7 +5223,7 @@ ips_reset_morpheus(ips_ha_t * ha)
 	METHOD_TRACE("ips_reset_morpheus", 1);
 
 	DEBUG_VAR(1, "(%s%d) ips_reset_morpheus: mem addr: %x, irq: %d",
-		  ips_name, ha->host_num, ha->mem_addr, ha->irq);
+		  ips_name, ha->host_num, ha->mem_addr, ha->pcidev->irq);
 
 	reset_counter = 0;
 
@@ -5920,7 +5910,7 @@ ips_read_config(ips_ha_t * ha, int intr)
 
 		return (0);
 	}
-	
+
 	memcpy(ha->conf, ha->ioctl_data, sizeof(*ha->conf));
 	return (1);
 }
@@ -5959,7 +5949,7 @@ ips_readwrite_page5(ips_ha_t * ha, int write, int intr)
 	scb->cmd.nvram.buffer_addr = ha->ioctl_busaddr;
 	if (write)
 		memcpy(ha->ioctl_data, ha->nvram, sizeof(*ha->nvram));
-	
+
 	/* issue the command */
 	if (((ret =
 	      ips_send_wait(ha, scb, ips_cmd_timeout, intr)) == IPS_FAILURE)
@@ -6196,32 +6186,32 @@ ips_erase_bios(ips_ha_t * ha)
 
 	/* Clear the status register */
 	outl(0, ha->io_addr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	outb(0x50, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Setup */
 	outb(0x20, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Confirm */
 	outb(0xD0, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Status */
 	outb(0x70, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	timeout = 80000;	/* 80 seconds */
 
 	while (timeout > 0) {
-		if (ha->revision_id == IPS_REVID_TROMBONE64) {
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 			outl(0, ha->io_addr + IPS_REG_FLAP);
 			udelay(25);	/* 25 us */
 		}
@@ -6241,13 +6231,13 @@ ips_erase_bios(ips_ha_t * ha)
 
 		/* try to suspend the erase */
 		outb(0xB0, ha->io_addr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		/* wait for 10 seconds */
 		timeout = 10000;
 		while (timeout > 0) {
-			if (ha->revision_id == IPS_REVID_TROMBONE64) {
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 				outl(0, ha->io_addr + IPS_REG_FLAP);
 				udelay(25);	/* 25 us */
 			}
@@ -6277,12 +6267,12 @@ ips_erase_bios(ips_ha_t * ha)
 	/* Otherwise, we were successful */
 	/* clear status */
 	outb(0x50, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* enable reads */
 	outb(0xFF, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	return (0);
@@ -6308,32 +6298,32 @@ ips_erase_bios_memio(ips_ha_t * ha)
 
 	/* Clear the status register */
 	writel(0, ha->mem_ptr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Setup */
 	writeb(0x20, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Confirm */
 	writeb(0xD0, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* Erase Status */
 	writeb(0x70, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	timeout = 80000;	/* 80 seconds */
 
 	while (timeout > 0) {
-		if (ha->revision_id == IPS_REVID_TROMBONE64) {
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 			writel(0, ha->mem_ptr + IPS_REG_FLAP);
 			udelay(25);	/* 25 us */
 		}
@@ -6353,13 +6343,13 @@ ips_erase_bios_memio(ips_ha_t * ha)
 
 		/* try to suspend the erase */
 		writeb(0xB0, ha->mem_ptr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		/* wait for 10 seconds */
 		timeout = 10000;
 		while (timeout > 0) {
-			if (ha->revision_id == IPS_REVID_TROMBONE64) {
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 				writel(0, ha->mem_ptr + IPS_REG_FLAP);
 				udelay(25);	/* 25 us */
 			}
@@ -6389,12 +6379,12 @@ ips_erase_bios_memio(ips_ha_t * ha)
 	/* Otherwise, we were successful */
 	/* clear status */
 	writeb(0x50, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	/* enable reads */
 	writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	return (0);
@@ -6423,21 +6413,21 @@ ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 	for (i = 0; i < buffersize; i++) {
 		/* write a byte */
 		outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		outb(0x40, ha->io_addr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		outb(buffer[i], ha->io_addr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		/* wait up to one second */
 		timeout = 1000;
 		while (timeout > 0) {
-			if (ha->revision_id == IPS_REVID_TROMBONE64) {
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 				outl(0, ha->io_addr + IPS_REG_FLAP);
 				udelay(25);	/* 25 us */
 			}
@@ -6454,11 +6444,11 @@ ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 		if (timeout == 0) {
 			/* timeout error */
 			outl(0, ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			outb(0xFF, ha->io_addr + IPS_REG_FLDP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			return (1);
@@ -6468,11 +6458,11 @@ ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 		if (status & 0x18) {
 			/* programming error */
 			outl(0, ha->io_addr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			outb(0xFF, ha->io_addr + IPS_REG_FLDP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			return (1);
@@ -6481,11 +6471,11 @@ ips_program_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 
 	/* Enable reading */
 	outl(0, ha->io_addr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	outb(0xFF, ha->io_addr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	return (0);
@@ -6514,21 +6504,21 @@ ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 	for (i = 0; i < buffersize; i++) {
 		/* write a byte */
 		writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		writeb(0x40, ha->mem_ptr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		writeb(buffer[i], ha->mem_ptr + IPS_REG_FLDP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		/* wait up to one second */
 		timeout = 1000;
 		while (timeout > 0) {
-			if (ha->revision_id == IPS_REVID_TROMBONE64) {
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64) {
 				writel(0, ha->mem_ptr + IPS_REG_FLAP);
 				udelay(25);	/* 25 us */
 			}
@@ -6545,11 +6535,11 @@ ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 		if (timeout == 0) {
 			/* timeout error */
 			writel(0, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			return (1);
@@ -6559,11 +6549,11 @@ ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 		if (status & 0x18) {
 			/* programming error */
 			writel(0, ha->mem_ptr + IPS_REG_FLAP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
-			if (ha->revision_id == IPS_REVID_TROMBONE64)
+			if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 				udelay(25);	/* 25 us */
 
 			return (1);
@@ -6572,11 +6562,11 @@ ips_program_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 
 	/* Enable reading */
 	writel(0, ha->mem_ptr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	writeb(0xFF, ha->mem_ptr + IPS_REG_FLDP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	return (0);
@@ -6601,14 +6591,14 @@ ips_verify_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 
 	/* test 1st byte */
 	outl(0, ha->io_addr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	if (inb(ha->io_addr + IPS_REG_FLDP) != 0x55)
 		return (1);
 
 	outl(cpu_to_le32(1), ha->io_addr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 	if (inb(ha->io_addr + IPS_REG_FLDP) != 0xAA)
 		return (1);
@@ -6617,7 +6607,7 @@ ips_verify_bios(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 	for (i = 2; i < buffersize; i++) {
 
 		outl(cpu_to_le32(i + offset), ha->io_addr + IPS_REG_FLAP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		checksum = (uint8_t) checksum + inb(ha->io_addr + IPS_REG_FLDP);
@@ -6650,14 +6640,14 @@ ips_verify_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 
 	/* test 1st byte */
 	writel(0, ha->mem_ptr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 
 	if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0x55)
 		return (1);
 
 	writel(1, ha->mem_ptr + IPS_REG_FLAP);
-	if (ha->revision_id == IPS_REVID_TROMBONE64)
+	if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 		udelay(25);	/* 25 us */
 	if (readb(ha->mem_ptr + IPS_REG_FLDP) != 0xAA)
 		return (1);
@@ -6666,7 +6656,7 @@ ips_verify_bios_memio(ips_ha_t * ha, char *buffer, uint32_t buffersize,
 	for (i = 2; i < buffersize; i++) {
 
 		writel(i + offset, ha->mem_ptr + IPS_REG_FLAP);
-		if (ha->revision_id == IPS_REVID_TROMBONE64)
+		if (ha->pcidev->revision == IPS_REVID_TROMBONE64)
 			udelay(25);	/* 25 us */
 
 		checksum =
@@ -6837,24 +6827,18 @@ ips_register_scsi(int index)
 	}
 	ha = IPS_HA(sh);
 	memcpy(ha, oldha, sizeof (ips_ha_t));
-	free_irq(oldha->irq, oldha);
+	free_irq(oldha->pcidev->irq, oldha);
 	/* Install the interrupt handler with the new ha */
-	if (request_irq(ha->irq, do_ipsintr, IRQF_SHARED, ips_name, ha)) {
+	if (request_irq(ha->pcidev->irq, do_ipsintr, IRQF_SHARED, ips_name, ha)) {
 		IPS_PRINTK(KERN_WARNING, ha->pcidev,
 			   "Unable to install interrupt handler\n");
-		scsi_host_put(sh);
-		return -1;
+		goto err_out_sh;
 	}
 
 	kfree(oldha);
-	ips_sh[index] = sh;
-	ips_ha[index] = ha;
 
 	/* Store away needed values for later use */
-	sh->io_port = ha->io_addr;
-	sh->n_io_port = ha->io_addr ? 255 : 0;
 	sh->unique_id = (ha->io_addr) ? ha->io_addr : ha->mem_addr;
-	sh->irq = ha->irq;
 	sh->sg_tablesize = sh->hostt->sg_tablesize;
 	sh->can_queue = sh->hostt->can_queue;
 	sh->cmd_per_lun = sh->hostt->cmd_per_lun;
@@ -6867,10 +6851,21 @@ ips_register_scsi(int index)
 	sh->max_channel = ha->nbus - 1;
 	sh->can_queue = ha->max_cmds - 1;
 
-	scsi_add_host(sh, NULL);
+	if (scsi_add_host(sh, &ha->pcidev->dev))
+		goto err_out;
+
+	ips_sh[index] = sh;
+	ips_ha[index] = ha;
+
 	scsi_scan_host(sh);
 
 	return 0;
+
+err_out:
+	free_irq(ha->pcidev->irq, ha);
+err_out_sh:
+	scsi_host_put(sh);
+	return -1;
 }
 
 /*---------------------------------------------------------------------------*/
@@ -6882,20 +6877,14 @@ ips_register_scsi(int index)
 static void __devexit
 ips_remove_device(struct pci_dev *pci_dev)
 {
-	int i;
-	struct Scsi_Host *sh;
-	ips_ha_t *ha;
+	struct Scsi_Host *sh = pci_get_drvdata(pci_dev);
 
-	for (i = 0; i < IPS_MAX_ADAPTERS; i++) {
-		ha = ips_ha[i];
-		if (ha) {
-			if ((pci_dev->bus->number == ha->pcidev->bus->number) &&
-			    (pci_dev->devfn == ha->pcidev->devfn)) {
-				sh = ips_sh[i];
-				ips_release(sh);
-			}
-		}
-	}
+	pci_set_drvdata(pci_dev, NULL);
+
+	ips_release(sh);
+
+	pci_release_regions(pci_dev);
+	pci_disable_device(pci_dev);
 }
 
 /****************************************************************************/
@@ -6949,12 +6938,17 @@ module_exit(ips_module_exit);
 static int __devinit
 ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
 {
-	int uninitialized_var(index);
+	int index = -1;
 	int rc;
 
 	METHOD_TRACE("ips_insert_device", 1);
-	if (pci_enable_device(pci_dev))
-		return -1;
+	rc = pci_enable_device(pci_dev);
+	if (rc)
+		return rc;
+
+	rc = pci_request_regions(pci_dev, "ips");
+	if (rc)
+		goto err_out;
 
 	rc = ips_init_phase1(pci_dev, &index);
 	if (rc == SUCCESS)
@@ -6970,6 +6964,19 @@ ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
 		ips_num_controllers++;
 
 	ips_next_controller = ips_num_controllers;
+
+	if (rc < 0) {
+		rc = -ENODEV;
+		goto err_out_regions;
+	}
+
+	pci_set_drvdata(pci_dev, ips_sh[index]);
+	return 0;
+
+err_out_regions:
+	pci_release_regions(pci_dev);
+err_out:
+	pci_disable_device(pci_dev);
 	return rc;
 }
 
@@ -6992,8 +6999,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 	uint32_t mem_len;
 	uint8_t bus;
 	uint8_t func;
-	uint8_t irq;
-	uint16_t subdevice_id;
 	int j;
 	int index;
 	dma_addr_t dma_address;
@@ -7004,7 +7009,7 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 	METHOD_TRACE("ips_init_phase1", 1);
 	index = IPS_MAX_ADAPTERS;
 	for (j = 0; j < IPS_MAX_ADAPTERS; j++) {
-		if (ips_ha[j] == 0) {
+		if (ips_ha[j] == NULL) {
 			index = j;
 			break;
 		}
@@ -7014,7 +7019,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 		return -1;
 
 	/* stuff that we get in dev */
-	irq = pci_dev->irq;
 	bus = pci_dev->bus->number;
 	func = pci_dev->devfn;
 
@@ -7042,34 +7046,17 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 		uint32_t base;
 		uint32_t offs;
 
-		if (!request_mem_region(mem_addr, mem_len, "ips")) {
-			IPS_PRINTK(KERN_WARNING, pci_dev,
-				   "Couldn't allocate IO Memory space %x len %d.\n",
-				   mem_addr, mem_len);
-			return -1;
-		}
-
 		base = mem_addr & PAGE_MASK;
 		offs = mem_addr - base;
 		ioremap_ptr = ioremap(base, PAGE_SIZE);
+		if (!ioremap_ptr)
+			return -1;
 		mem_ptr = ioremap_ptr + offs;
 	} else {
 		ioremap_ptr = NULL;
 		mem_ptr = NULL;
 	}
 
-	/* setup I/O mapped area (if applicable) */
-	if (io_addr) {
-		if (!request_region(io_addr, io_len, "ips")) {
-			IPS_PRINTK(KERN_WARNING, pci_dev,
-				   "Couldn't allocate IO space %x len %d.\n",
-				   io_addr, io_len);
-			return -1;
-		}
-	}
-
-	subdevice_id = pci_dev->subsystem_device;
-
 	/* found a controller */
 	ha = kzalloc(sizeof (ips_ha_t), GFP_KERNEL);
 	if (ha == NULL) {
@@ -7078,13 +7065,11 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 		return -1;
 	}
 
-
 	ips_sh[index] = NULL;
 	ips_ha[index] = ha;
 	ha->active = 1;
 
 	/* Store info in HA structure */
-	ha->irq = irq;
 	ha->io_addr = io_addr;
 	ha->io_len = io_len;
 	ha->mem_addr = mem_addr;
@@ -7092,10 +7077,7 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
 	ha->mem_ptr = mem_ptr;
 	ha->ioremap_ptr = ioremap_ptr;
 	ha->host_num = (uint32_t) index;
-	ha->revision_id = pci_dev->revision;
 	ha->slot_num = PCI_SLOT(pci_dev->devfn);
-	ha->device_id = pci_dev->device;
-	ha->subdevice_id = subdevice_id;
 	ha->pcidev = pci_dev;
 
 	/*
@@ -7240,7 +7222,7 @@ ips_init_phase2(int index)
 	}
 
 	/* Install the interrupt handler */
-	if (request_irq(ha->irq, do_ipsintr, IRQF_SHARED, ips_name, ha)) {
+	if (request_irq(ha->pcidev->irq, do_ipsintr, IRQF_SHARED, ips_name, ha)) {
 		IPS_PRINTK(KERN_WARNING, ha->pcidev,
 			   "Unable to install interrupt handler\n");
 		return ips_abort_init(ha, index);
@@ -7253,14 +7235,14 @@ ips_init_phase2(int index)
 	if (!ips_allocatescbs(ha)) {
 		IPS_PRINTK(KERN_WARNING, ha->pcidev,
 			   "Unable to allocate a CCB\n");
-		free_irq(ha->irq, ha);
+		free_irq(ha->pcidev->irq, ha);
 		return ips_abort_init(ha, index);
 	}
 
 	if (!ips_hainit(ha)) {
 		IPS_PRINTK(KERN_WARNING, ha->pcidev,
 			   "Unable to initialize controller\n");
-		free_irq(ha->irq, ha);
+		free_irq(ha->pcidev->irq, ha);
 		return ips_abort_init(ha, index);
 	}
 	/* Free the temporary SCB */
@@ -7270,7 +7252,7 @@ ips_init_phase2(int index)
 	if (!ips_allocatescbs(ha)) {
 		IPS_PRINTK(KERN_WARNING, ha->pcidev,
 			   "Unable to allocate CCBs\n");
-		free_irq(ha->irq, ha);
+		free_irq(ha->pcidev->irq, ha);
 		return ips_abort_init(ha, index);
 	}
 

drivers/scsi/ips.h

@@ -60,14 +60,14 @@
     */
    #define IPS_HA(x)                   ((ips_ha_t *) x->hostdata)
    #define IPS_COMMAND_ID(ha, scb)     (int) (scb - ha->scbs)
-   #define IPS_IS_TROMBONE(ha)         (((ha->device_id == IPS_DEVICEID_COPPERHEAD) && \
-                                         (ha->revision_id >= IPS_REVID_TROMBONE32) && \
-                                         (ha->revision_id <= IPS_REVID_TROMBONE64)) ? 1 : 0)
-   #define IPS_IS_CLARINET(ha)         (((ha->device_id == IPS_DEVICEID_COPPERHEAD) && \
-                                         (ha->revision_id >= IPS_REVID_CLARINETP1) && \
-                                         (ha->revision_id <= IPS_REVID_CLARINETP3)) ? 1 : 0)
-   #define IPS_IS_MORPHEUS(ha)         (ha->device_id == IPS_DEVICEID_MORPHEUS)
-   #define IPS_IS_MARCO(ha)            (ha->device_id == IPS_DEVICEID_MARCO)
+   #define IPS_IS_TROMBONE(ha)         (((ha->pcidev->device == IPS_DEVICEID_COPPERHEAD) && \
+                                         (ha->pcidev->revision >= IPS_REVID_TROMBONE32) && \
+                                         (ha->pcidev->revision <= IPS_REVID_TROMBONE64)) ? 1 : 0)
+   #define IPS_IS_CLARINET(ha)         (((ha->pcidev->device == IPS_DEVICEID_COPPERHEAD) && \
+                                         (ha->pcidev->revision >= IPS_REVID_CLARINETP1) && \
+                                         (ha->pcidev->revision <= IPS_REVID_CLARINETP3)) ? 1 : 0)
+   #define IPS_IS_MORPHEUS(ha)         (ha->pcidev->device == IPS_DEVICEID_MORPHEUS)
+   #define IPS_IS_MARCO(ha)            (ha->pcidev->device == IPS_DEVICEID_MARCO)
    #define IPS_USE_I2O_DELIVER(ha)     ((IPS_IS_MORPHEUS(ha) || \
                                          (IPS_IS_TROMBONE(ha) && \
                                           (ips_force_i2o))) ? 1 : 0)
@@ -92,7 +92,7 @@
    #ifndef min
       #define min(x,y) ((x) < (y) ? x : y)
    #endif
-   
+
    #ifndef __iomem       /* For clean compiles in earlier kernels without __iomem annotations */
       #define __iomem
    #endif
@@ -171,7 +171,7 @@
    #define IPS_CMD_DOWNLOAD             0x20
    #define IPS_CMD_RW_BIOSFW            0x22
    #define IPS_CMD_GET_VERSION_INFO     0xC6
-   #define IPS_CMD_RESET_CHANNEL        0x1A  
+   #define IPS_CMD_RESET_CHANNEL        0x1A
 
    /*
     * Adapter Equates
@@ -458,7 +458,7 @@ typedef struct {
    uint32_t reserved3;
    uint32_t buffer_addr;
    uint32_t reserved4;
-} IPS_IOCTL_CMD, *PIPS_IOCTL_CMD; 
+} IPS_IOCTL_CMD, *PIPS_IOCTL_CMD;
 
 typedef struct {
    uint8_t  op_code;
@@ -552,7 +552,7 @@ typedef struct {
    uint32_t cccr;
 } IPS_NVRAM_CMD, *PIPS_NVRAM_CMD;
 
-typedef struct 
+typedef struct
 {
     uint8_t  op_code;
     uint8_t  command_id;
@@ -650,7 +650,7 @@ typedef struct {
    uint8_t   device_address;
    uint8_t   cmd_attribute;
    uint8_t   cdb_length;
-   uint8_t   reserved_for_LUN; 	 
+   uint8_t   reserved_for_LUN;
    uint32_t  transfer_length;
    uint32_t  buffer_pointer;
    uint16_t  sg_count;
@@ -790,7 +790,7 @@ typedef struct {
                                              /* SubSystem Parameter[4]      */
 #define  IPS_GET_VERSION_SUPPORT 0x00018000  /* Mask for Versioning Support */
 
-typedef struct 
+typedef struct
 {
    uint32_t  revision;
    uint8_t   bootBlkVersion[32];
@@ -1034,7 +1034,6 @@ typedef struct ips_ha {
    uint8_t            ha_id[IPS_MAX_CHANNELS+1];
    uint32_t           dcdb_active[IPS_MAX_CHANNELS];
    uint32_t           io_addr;            /* Base I/O address           */
-   uint8_t            irq;                /* IRQ for adapter            */
    uint8_t            ntargets;           /* Number of targets          */
    uint8_t            nbus;               /* Number of buses            */
    uint8_t            nlun;               /* Number of Luns             */
@@ -1066,10 +1065,7 @@ typedef struct ips_ha {
    int                ioctl_reset;        /* IOCTL Requested Reset Flag */
    uint16_t           reset_count;        /* number of resets           */
    time_t             last_ffdc;          /* last time we sent ffdc info*/
-   uint8_t            revision_id;        /* Revision level             */
-   uint16_t           device_id;          /* PCI device ID              */
    uint8_t            slot_num;           /* PCI Slot Number            */
-   uint16_t           subdevice_id;       /* Subsystem device ID        */
    int                ioctl_len;          /* size of ioctl buffer       */
    dma_addr_t         ioctl_busaddr;      /* dma address of ioctl buffer*/
    uint8_t            bios_version[8];    /* BIOS Revision              */

drivers/scsi/iscsi_tcp.c

@@ -48,7 +48,7 @@ MODULE_AUTHOR("Dmitry Yusupov <dmitry_yus@yahoo.com>, "
 	      "Alex Aizman <itn780@yahoo.com>");
 MODULE_DESCRIPTION("iSCSI/TCP data-path");
 MODULE_LICENSE("GPL");
-/* #define DEBUG_TCP */
+#undef DEBUG_TCP
 #define DEBUG_ASSERT
 
 #ifdef DEBUG_TCP
@@ -67,115 +67,429 @@ MODULE_LICENSE("GPL");
 static unsigned int iscsi_max_lun = 512;
 module_param_named(max_lun, iscsi_max_lun, uint, S_IRUGO);
 
+static int iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn,
+				   struct iscsi_segment *segment);
+
+/*
+ * Scatterlist handling: inside the iscsi_segment, we
+ * remember an index into the scatterlist, and set data/size
+ * to the current scatterlist entry. For highmem pages, we
+ * kmap as needed.
+ *
+ * Note that the page is unmapped when we return from
+ * TCP's data_ready handler, so we may end up mapping and
+ * unmapping the same page repeatedly. The whole reason
+ * for this is that we shouldn't keep the page mapped
+ * outside the softirq.
+ */
+
+/**
+ * iscsi_tcp_segment_init_sg - init indicated scatterlist entry
+ * @segment: the buffer object
+ * @sg: scatterlist
+ * @offset: byte offset into that sg entry
+ *
+ * This function sets up the segment so that subsequent
+ * data is copied to the indicated sg entry, at the given
+ * offset.
+ */
 static inline void
-iscsi_buf_init_iov(struct iscsi_buf *ibuf, char *vbuf, int size)
+iscsi_tcp_segment_init_sg(struct iscsi_segment *segment,
+			  struct scatterlist *sg, unsigned int offset)
 {
-	sg_init_one(&ibuf->sg, vbuf, size);
-	ibuf->sent = 0;
-	ibuf->use_sendmsg = 1;
+	segment->sg = sg;
+	segment->sg_offset = offset;
+	segment->size = min(sg->length - offset,
+			    segment->total_size - segment->total_copied);
+	segment->data = NULL;
 }
 
+/**
+ * iscsi_tcp_segment_map - map the current S/G page
+ * @segment: iscsi_segment
+ * @recv: 1 if called from recv path
+ *
+ * We only need to possibly kmap data if scatter lists are being used,
+ * because the iscsi passthrough and internal IO paths will never use high
+ * mem pages.
+ */
 static inline void
-iscsi_buf_init_sg(struct iscsi_buf *ibuf, struct scatterlist *sg)
+iscsi_tcp_segment_map(struct iscsi_segment *segment, int recv)
 {
-	sg_init_table(&ibuf->sg, 1);
-	sg_set_page(&ibuf->sg, sg_page(sg), sg->length, sg->offset);
+	struct scatterlist *sg;
+
+	if (segment->data != NULL || !segment->sg)
+		return;
+
+	sg = segment->sg;
+	BUG_ON(segment->sg_mapped);
+	BUG_ON(sg->length == 0);
+
 	/*
-	 * Fastpath: sg element fits into single page
+	 * If the page count is greater than one it is ok to send
+	 * to the network layer's zero copy send path. If not we
+	 * have to go the slow sendmsg path. We always map for the
+	 * recv path.
 	 */
-	if (sg->length + sg->offset <= PAGE_SIZE && !PageSlab(sg_page(sg)))
-		ibuf->use_sendmsg = 0;
-	else
-		ibuf->use_sendmsg = 1;
-	ibuf->sent = 0;
+	if (page_count(sg_page(sg)) >= 1 && !recv)
+		return;
+
+	debug_tcp("iscsi_tcp_segment_map %s %p\n", recv ? "recv" : "xmit",
+		  segment);
+	segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+	segment->data = segment->sg_mapped + sg->offset + segment->sg_offset;
 }
 
-static inline int
-iscsi_buf_left(struct iscsi_buf *ibuf)
+static inline void
+iscsi_tcp_segment_unmap(struct iscsi_segment *segment)
 {
-	int rc;
+	debug_tcp("iscsi_tcp_segment_unmap %p\n", segment);
 
-	rc = ibuf->sg.length - ibuf->sent;
-	BUG_ON(rc < 0);
-	return rc;
+	if (segment->sg_mapped) {
+		debug_tcp("iscsi_tcp_segment_unmap valid\n");
+		kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0);
+		segment->sg_mapped = NULL;
+		segment->data = NULL;
+	}
 }
 
+/*
+ * Splice the digest buffer into the buffer
+ */
 static inline void
-iscsi_hdr_digest(struct iscsi_conn *conn, struct iscsi_buf *buf,
-		 u8* crc)
+iscsi_tcp_segment_splice_digest(struct iscsi_segment *segment, void *digest)
 {
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-
-	crypto_hash_digest(&tcp_conn->tx_hash, &buf->sg, buf->sg.length, crc);
-	buf->sg.length += sizeof(u32);
+	segment->data = digest;
+	segment->digest_len = ISCSI_DIGEST_SIZE;
+	segment->total_size += ISCSI_DIGEST_SIZE;
+	segment->size = ISCSI_DIGEST_SIZE;
+	segment->copied = 0;
+	segment->sg = NULL;
+	segment->hash = NULL;
 }
 
+/**
+ * iscsi_tcp_segment_done - check whether the segment is complete
+ * @segment: iscsi segment to check
+ * @recv: set to one of this is called from the recv path
+ * @copied: number of bytes copied
+ *
+ * Check if we're done receiving this segment. If the receive
+ * buffer is full but we expect more data, move on to the
+ * next entry in the scatterlist.
+ *
+ * If the amount of data we received isn't a multiple of 4,
+ * we will transparently receive the pad bytes, too.
+ *
+ * This function must be re-entrant.
+ */
 static inline int
-iscsi_hdr_extract(struct iscsi_tcp_conn *tcp_conn)
+iscsi_tcp_segment_done(struct iscsi_segment *segment, int recv, unsigned copied)
 {
-	struct sk_buff *skb = tcp_conn->in.skb;
-
-	tcp_conn->in.zero_copy_hdr = 0;
+	static unsigned char padbuf[ISCSI_PAD_LEN];
+	struct scatterlist sg;
+	unsigned int pad;
 
-	if (tcp_conn->in.copy >= tcp_conn->hdr_size &&
-	    tcp_conn->in_progress == IN_PROGRESS_WAIT_HEADER) {
+	debug_tcp("copied %u %u size %u %s\n", segment->copied, copied,
+		  segment->size, recv ? "recv" : "xmit");
+	if (segment->hash && copied) {
 		/*
-		 * Zero-copy PDU Header: using connection context
-		 * to store header pointer.
+		 * If a segment is kmapd we must unmap it before sending
+		 * to the crypto layer since that will try to kmap it again.
 		 */
-		if (skb_shinfo(skb)->frag_list == NULL &&
-		    !skb_shinfo(skb)->nr_frags) {
-			tcp_conn->in.hdr = (struct iscsi_hdr *)
-				((char*)skb->data + tcp_conn->in.offset);
-			tcp_conn->in.zero_copy_hdr = 1;
+		iscsi_tcp_segment_unmap(segment);
+
+		if (!segment->data) {
+			sg_init_table(&sg, 1);
+			sg_set_page(&sg, sg_page(segment->sg), copied,
+				    segment->copied + segment->sg_offset +
+							segment->sg->offset);
+		} else
+			sg_init_one(&sg, segment->data + segment->copied,
+				    copied);
+		crypto_hash_update(segment->hash, &sg, copied);
+	}
+
+	segment->copied += copied;
+	if (segment->copied < segment->size) {
+		iscsi_tcp_segment_map(segment, recv);
+		return 0;
+	}
+
+	segment->total_copied += segment->copied;
+	segment->copied = 0;
+	segment->size = 0;
+
+	/* Unmap the current scatterlist page, if there is one. */
+	iscsi_tcp_segment_unmap(segment);
+
+	/* Do we have more scatterlist entries? */
+	debug_tcp("total copied %u total size %u\n", segment->total_copied,
+		   segment->total_size);
+	if (segment->total_copied < segment->total_size) {
+		/* Proceed to the next entry in the scatterlist. */
+		iscsi_tcp_segment_init_sg(segment, sg_next(segment->sg),
+					  0);
+		iscsi_tcp_segment_map(segment, recv);
+		BUG_ON(segment->size == 0);
+		return 0;
+	}
+
+	/* Do we need to handle padding? */
+	pad = iscsi_padding(segment->total_copied);
+	if (pad != 0) {
+		debug_tcp("consume %d pad bytes\n", pad);
+		segment->total_size += pad;
+		segment->size = pad;
+		segment->data = padbuf;
+		return 0;
+	}
+
+	/*
+	 * Set us up for transferring the data digest. hdr digest
+	 * is completely handled in hdr done function.
+	 */
+	if (segment->hash) {
+		crypto_hash_final(segment->hash, segment->digest);
+		iscsi_tcp_segment_splice_digest(segment,
+				 recv ? segment->recv_digest : segment->digest);
+		return 0;
+	}
+
+	return 1;
+}
+
+/**
+ * iscsi_tcp_xmit_segment - transmit segment
+ * @tcp_conn: the iSCSI TCP connection
+ * @segment: the buffer to transmnit
+ *
+ * This function transmits as much of the buffer as
+ * the network layer will accept, and returns the number of
+ * bytes transmitted.
+ *
+ * If CRC hashing is enabled, the function will compute the
+ * hash as it goes. When the entire segment has been transmitted,
+ * it will retrieve the hash value and send it as well.
+ */
+static int
+iscsi_tcp_xmit_segment(struct iscsi_tcp_conn *tcp_conn,
+		       struct iscsi_segment *segment)
+{
+	struct socket *sk = tcp_conn->sock;
+	unsigned int copied = 0;
+	int r = 0;
+
+	while (!iscsi_tcp_segment_done(segment, 0, r)) {
+		struct scatterlist *sg;
+		unsigned int offset, copy;
+		int flags = 0;
+
+		r = 0;
+		offset = segment->copied;
+		copy = segment->size - offset;
+
+		if (segment->total_copied + segment->size < segment->total_size)
+			flags |= MSG_MORE;
+
+		/* Use sendpage if we can; else fall back to sendmsg */
+		if (!segment->data) {
+			sg = segment->sg;
+			offset += segment->sg_offset + sg->offset;
+			r = tcp_conn->sendpage(sk, sg_page(sg), offset, copy,
+					       flags);
 		} else {
-			/* ignoring return code since we checked
-			 * in.copy before */
-			skb_copy_bits(skb, tcp_conn->in.offset,
-				&tcp_conn->hdr, tcp_conn->hdr_size);
-			tcp_conn->in.hdr = &tcp_conn->hdr;
+			struct msghdr msg = { .msg_flags = flags };
+			struct kvec iov = {
+				.iov_base = segment->data + offset,
+				.iov_len = copy
+			};
+
+			r = kernel_sendmsg(sk, &msg, &iov, 1, copy);
 		}
-		tcp_conn->in.offset += tcp_conn->hdr_size;
-		tcp_conn->in.copy -= tcp_conn->hdr_size;
-	} else {
-		int hdr_remains;
-		int copylen;
 
-		/*
-		 * PDU header scattered across SKB's,
-		 * copying it... This'll happen quite rarely.
-		 */
+		if (r < 0) {
+			iscsi_tcp_segment_unmap(segment);
+			if (copied || r == -EAGAIN)
+				break;
+			return r;
+		}
+		copied += r;
+	}
+	return copied;
+}
+
+/**
+ * iscsi_tcp_segment_recv - copy data to segment
+ * @tcp_conn: the iSCSI TCP connection
+ * @segment: the buffer to copy to
+ * @ptr: data pointer
+ * @len: amount of data available
+ *
+ * This function copies up to @len bytes to the
+ * given buffer, and returns the number of bytes
+ * consumed, which can actually be less than @len.
+ *
+ * If hash digest is enabled, the function will update the
+ * hash while copying.
+ * Combining these two operations doesn't buy us a lot (yet),
+ * but in the future we could implement combined copy+crc,
+ * just way we do for network layer checksums.
+ */
+static int
+iscsi_tcp_segment_recv(struct iscsi_tcp_conn *tcp_conn,
+		       struct iscsi_segment *segment, const void *ptr,
+		       unsigned int len)
+{
+	unsigned int copy = 0, copied = 0;
 
-		if (tcp_conn->in_progress == IN_PROGRESS_WAIT_HEADER)
-			tcp_conn->in.hdr_offset = 0;
+	while (!iscsi_tcp_segment_done(segment, 1, copy)) {
+		if (copied == len) {
+			debug_tcp("iscsi_tcp_segment_recv copied %d bytes\n",
+				  len);
+			break;
+		}
 
-		hdr_remains = tcp_conn->hdr_size - tcp_conn->in.hdr_offset;
-		BUG_ON(hdr_remains <= 0);
+		copy = min(len - copied, segment->size - segment->copied);
+		debug_tcp("iscsi_tcp_segment_recv copying %d\n", copy);
+		memcpy(segment->data + segment->copied, ptr + copied, copy);
+		copied += copy;
+	}
+	return copied;
+}
 
-		copylen = min(tcp_conn->in.copy, hdr_remains);
-		skb_copy_bits(skb, tcp_conn->in.offset,
-			(char*)&tcp_conn->hdr + tcp_conn->in.hdr_offset,
-			copylen);
+static inline void
+iscsi_tcp_dgst_header(struct hash_desc *hash, const void *hdr, size_t hdrlen,
+		      unsigned char digest[ISCSI_DIGEST_SIZE])
+{
+	struct scatterlist sg;
+
+	sg_init_one(&sg, hdr, hdrlen);
+	crypto_hash_digest(hash, &sg, hdrlen, digest);
+}
 
-		debug_tcp("PDU gather offset %d bytes %d in.offset %d "
-		       "in.copy %d\n", tcp_conn->in.hdr_offset, copylen,
-		       tcp_conn->in.offset, tcp_conn->in.copy);
+static inline int
+iscsi_tcp_dgst_verify(struct iscsi_tcp_conn *tcp_conn,
+		      struct iscsi_segment *segment)
+{
+	if (!segment->digest_len)
+		return 1;
 
-		tcp_conn->in.offset += copylen;
-		tcp_conn->in.copy -= copylen;
-		if (copylen < hdr_remains)  {
-			tcp_conn->in_progress = IN_PROGRESS_HEADER_GATHER;
-			tcp_conn->in.hdr_offset += copylen;
-		        return -EAGAIN;
+	if (memcmp(segment->recv_digest, segment->digest,
+		   segment->digest_len)) {
+		debug_scsi("digest mismatch\n");
+		return 0;
+	}
+
+	return 1;
+}
+
+/*
+ * Helper function to set up segment buffer
+ */
+static inline void
+__iscsi_segment_init(struct iscsi_segment *segment, size_t size,
+		     iscsi_segment_done_fn_t *done, struct hash_desc *hash)
+{
+	memset(segment, 0, sizeof(*segment));
+	segment->total_size = size;
+	segment->done = done;
+
+	if (hash) {
+		segment->hash = hash;
+		crypto_hash_init(hash);
+	}
+}
+
+static inline void
+iscsi_segment_init_linear(struct iscsi_segment *segment, void *data,
+			  size_t size, iscsi_segment_done_fn_t *done,
+			  struct hash_desc *hash)
+{
+	__iscsi_segment_init(segment, size, done, hash);
+	segment->data = data;
+	segment->size = size;
+}
+
+static inline int
+iscsi_segment_seek_sg(struct iscsi_segment *segment,
+		      struct scatterlist *sg_list, unsigned int sg_count,
+		      unsigned int offset, size_t size,
+		      iscsi_segment_done_fn_t *done, struct hash_desc *hash)
+{
+	struct scatterlist *sg;
+	unsigned int i;
+
+	debug_scsi("iscsi_segment_seek_sg offset %u size %llu\n",
+		  offset, size);
+	__iscsi_segment_init(segment, size, done, hash);
+	for_each_sg(sg_list, sg, sg_count, i) {
+		debug_scsi("sg %d, len %u offset %u\n", i, sg->length,
+			   sg->offset);
+		if (offset < sg->length) {
+			iscsi_tcp_segment_init_sg(segment, sg, offset);
+			return 0;
 		}
-		tcp_conn->in.hdr = &tcp_conn->hdr;
-		tcp_conn->discontiguous_hdr_cnt++;
-	        tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
+		offset -= sg->length;
 	}
 
+	return ISCSI_ERR_DATA_OFFSET;
+}
+
+/**
+ * iscsi_tcp_hdr_recv_prep - prep segment for hdr reception
+ * @tcp_conn: iscsi connection to prep for
+ *
+ * This function always passes NULL for the hash argument, because when this
+ * function is called we do not yet know the final size of the header and want
+ * to delay the digest processing until we know that.
+ */
+static void
+iscsi_tcp_hdr_recv_prep(struct iscsi_tcp_conn *tcp_conn)
+{
+	debug_tcp("iscsi_tcp_hdr_recv_prep(%p%s)\n", tcp_conn,
+		  tcp_conn->iscsi_conn->hdrdgst_en ? ", digest enabled" : "");
+	iscsi_segment_init_linear(&tcp_conn->in.segment,
+				tcp_conn->in.hdr_buf, sizeof(struct iscsi_hdr),
+				iscsi_tcp_hdr_recv_done, NULL);
+}
+
+/*
+ * Handle incoming reply to any other type of command
+ */
+static int
+iscsi_tcp_data_recv_done(struct iscsi_tcp_conn *tcp_conn,
+			 struct iscsi_segment *segment)
+{
+	struct iscsi_conn *conn = tcp_conn->iscsi_conn;
+	int rc = 0;
+
+	if (!iscsi_tcp_dgst_verify(tcp_conn, segment))
+		return ISCSI_ERR_DATA_DGST;
+
+	rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr,
+			conn->data, tcp_conn->in.datalen);
+	if (rc)
+		return rc;
+
+	iscsi_tcp_hdr_recv_prep(tcp_conn);
 	return 0;
 }
 
+static void
+iscsi_tcp_data_recv_prep(struct iscsi_tcp_conn *tcp_conn)
+{
+	struct iscsi_conn *conn = tcp_conn->iscsi_conn;
+	struct hash_desc *rx_hash = NULL;
+
+	if (conn->datadgst_en)
+		rx_hash = &tcp_conn->rx_hash;
+
+	iscsi_segment_init_linear(&tcp_conn->in.segment,
+				conn->data, tcp_conn->in.datalen,
+				iscsi_tcp_data_recv_done, rx_hash);
+}
+
 /*
  * must be called with session lock
  */
@@ -184,7 +498,6 @@ iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 	struct iscsi_r2t_info *r2t;
-	struct scsi_cmnd *sc;
 
 	/* flush ctask's r2t queues */
 	while (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*))) {
@@ -193,12 +506,12 @@ iscsi_tcp_cleanup_ctask(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 		debug_scsi("iscsi_tcp_cleanup_ctask pending r2t dropped\n");
 	}
 
-	sc = ctask->sc;
-	if (unlikely(!sc))
-		return;
-
-	tcp_ctask->xmstate = XMSTATE_VALUE_IDLE;
-	tcp_ctask->r2t = NULL;
+	r2t = tcp_ctask->r2t;
+	if (r2t != NULL) {
+		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
+			    sizeof(void*));
+		tcp_ctask->r2t = NULL;
+	}
 }
 
 /**
@@ -217,11 +530,6 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	int datasn = be32_to_cpu(rhdr->datasn);
 
 	iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
-	/*
-	 * setup Data-In byte counter (gets decremented..)
-	 */
-	ctask->data_count = tcp_conn->in.datalen;
-
 	if (tcp_conn->in.datalen == 0)
 		return 0;
 
@@ -242,22 +550,20 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	}
 
 	if (rhdr->flags & ISCSI_FLAG_DATA_STATUS) {
+		sc->result = (DID_OK << 16) | rhdr->cmd_status;
 		conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
-		if (rhdr->flags & ISCSI_FLAG_DATA_UNDERFLOW) {
+		if (rhdr->flags & (ISCSI_FLAG_DATA_UNDERFLOW |
+		                   ISCSI_FLAG_DATA_OVERFLOW)) {
 			int res_count = be32_to_cpu(rhdr->residual_count);
 
 			if (res_count > 0 &&
-			    res_count <= scsi_bufflen(sc)) {
+			    (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
+			     res_count <= scsi_bufflen(sc)))
 				scsi_set_resid(sc, res_count);
-				sc->result = (DID_OK << 16) | rhdr->cmd_status;
-			} else
+			else
 				sc->result = (DID_BAD_TARGET << 16) |
 					rhdr->cmd_status;
-		} else if (rhdr->flags & ISCSI_FLAG_DATA_OVERFLOW) {
-			scsi_set_resid(sc, be32_to_cpu(rhdr->residual_count));
-			sc->result = (DID_OK << 16) | rhdr->cmd_status;
-		} else
-			sc->result = (DID_OK << 16) | rhdr->cmd_status;
+		}
 	}
 
 	conn->datain_pdus_cnt++;
@@ -281,9 +587,6 @@ iscsi_solicit_data_init(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 			struct iscsi_r2t_info *r2t)
 {
 	struct iscsi_data *hdr;
-	struct scsi_cmnd *sc = ctask->sc;
-	int i, sg_count = 0;
-	struct scatterlist *sg;
 
 	hdr = &r2t->dtask.hdr;
 	memset(hdr, 0, sizeof(struct iscsi_data));
@@ -307,34 +610,6 @@ iscsi_solicit_data_init(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 	conn->dataout_pdus_cnt++;
 
 	r2t->sent = 0;
-
-	iscsi_buf_init_iov(&r2t->headbuf, (char*)hdr,
-			   sizeof(struct iscsi_hdr));
-
-	sg = scsi_sglist(sc);
-	r2t->sg = NULL;
-	for (i = 0; i < scsi_sg_count(sc); i++, sg += 1) {
-		/* FIXME: prefetch ? */
-		if (sg_count + sg->length > r2t->data_offset) {
-			int page_offset;
-
-			/* sg page found! */
-
-			/* offset within this page */
-			page_offset = r2t->data_offset - sg_count;
-
-			/* fill in this buffer */
-			iscsi_buf_init_sg(&r2t->sendbuf, sg);
-			r2t->sendbuf.sg.offset += page_offset;
-			r2t->sendbuf.sg.length -= page_offset;
-
-			/* xmit logic will continue with next one */
-			r2t->sg = sg + 1;
-			break;
-		}
-		sg_count += sg->length;
-	}
-	BUG_ON(r2t->sg == NULL);
 }
 
 /**
@@ -366,14 +641,11 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	}
 
 	/* fill-in new R2T associated with the task */
-	spin_lock(&session->lock);
 	iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
 
-	if (!ctask->sc || ctask->mtask ||
-	     session->state != ISCSI_STATE_LOGGED_IN) {
+	if (!ctask->sc || session->state != ISCSI_STATE_LOGGED_IN) {
 		printk(KERN_INFO "iscsi_tcp: dropping R2T itt %d in "
 		       "recovery...\n", ctask->itt);
-		spin_unlock(&session->lock);
 		return 0;
 	}
 
@@ -384,7 +656,8 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 	r2t->data_length = be32_to_cpu(rhdr->data_length);
 	if (r2t->data_length == 0) {
 		printk(KERN_ERR "iscsi_tcp: invalid R2T with zero data len\n");
-		spin_unlock(&session->lock);
+		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
+			    sizeof(void*));
 		return ISCSI_ERR_DATALEN;
 	}
 
@@ -395,10 +668,11 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 
 	r2t->data_offset = be32_to_cpu(rhdr->data_offset);
 	if (r2t->data_offset + r2t->data_length > scsi_bufflen(ctask->sc)) {
-		spin_unlock(&session->lock);
 		printk(KERN_ERR "iscsi_tcp: invalid R2T with data len %u at "
 		       "offset %u and total length %d\n", r2t->data_length,
 		       r2t->data_offset, scsi_bufflen(ctask->sc));
+		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
+			    sizeof(void*));
 		return ISCSI_ERR_DATALEN;
 	}
 
@@ -409,26 +683,55 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 
 	tcp_ctask->exp_datasn = r2tsn + 1;
 	__kfifo_put(tcp_ctask->r2tqueue, (void*)&r2t, sizeof(void*));
-	set_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
-	list_move_tail(&ctask->running, &conn->xmitqueue);
-
-	scsi_queue_work(session->host, &conn->xmitwork);
 	conn->r2t_pdus_cnt++;
-	spin_unlock(&session->lock);
 
+	iscsi_requeue_ctask(ctask);
 	return 0;
 }
 
+/*
+ * Handle incoming reply to DataIn command
+ */
 static int
-iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
+iscsi_tcp_process_data_in(struct iscsi_tcp_conn *tcp_conn,
+			  struct iscsi_segment *segment)
+{
+	struct iscsi_conn *conn = tcp_conn->iscsi_conn;
+	struct iscsi_hdr *hdr = tcp_conn->in.hdr;
+	int rc;
+
+	if (!iscsi_tcp_dgst_verify(tcp_conn, segment))
+		return ISCSI_ERR_DATA_DGST;
+
+	/* check for non-exceptional status */
+	if (hdr->flags & ISCSI_FLAG_DATA_STATUS) {
+		rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0);
+		if (rc)
+			return rc;
+	}
+
+	iscsi_tcp_hdr_recv_prep(tcp_conn);
+	return 0;
+}
+
+/**
+ * iscsi_tcp_hdr_dissect - process PDU header
+ * @conn: iSCSI connection
+ * @hdr: PDU header
+ *
+ * This function analyzes the header of the PDU received,
+ * and performs several sanity checks. If the PDU is accompanied
+ * by data, the receive buffer is set up to copy the incoming data
+ * to the correct location.
+ */
+static int
+iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
 {
 	int rc = 0, opcode, ahslen;
-	struct iscsi_hdr *hdr;
 	struct iscsi_session *session = conn->session;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	uint32_t cdgst, rdgst = 0, itt;
-
-	hdr = tcp_conn->in.hdr;
+	struct iscsi_cmd_task *ctask;
+	uint32_t itt;
 
 	/* verify PDU length */
 	tcp_conn->in.datalen = ntoh24(hdr->dlength);
@@ -437,78 +740,73 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 		       tcp_conn->in.datalen, conn->max_recv_dlength);
 		return ISCSI_ERR_DATALEN;
 	}
-	tcp_conn->data_copied = 0;
 
-	/* read AHS */
+	/* Additional header segments. So far, we don't
+	 * process additional headers.
+	 */
 	ahslen = hdr->hlength << 2;
-	tcp_conn->in.offset += ahslen;
-	tcp_conn->in.copy -= ahslen;
-	if (tcp_conn->in.copy < 0) {
-		printk(KERN_ERR "iscsi_tcp: can't handle AHS with length "
-		       "%d bytes\n", ahslen);
-		return ISCSI_ERR_AHSLEN;
-	}
-
-	/* calculate read padding */
-	tcp_conn->in.padding = tcp_conn->in.datalen & (ISCSI_PAD_LEN-1);
-	if (tcp_conn->in.padding) {
-		tcp_conn->in.padding = ISCSI_PAD_LEN - tcp_conn->in.padding;
-		debug_scsi("read padding %d bytes\n", tcp_conn->in.padding);
-	}
-
-	if (conn->hdrdgst_en) {
-		struct scatterlist sg;
-
-		sg_init_one(&sg, (u8 *)hdr,
-			    sizeof(struct iscsi_hdr) + ahslen);
-		crypto_hash_digest(&tcp_conn->rx_hash, &sg, sg.length,
-				   (u8 *)&cdgst);
-		rdgst = *(uint32_t*)((char*)hdr + sizeof(struct iscsi_hdr) +
-				     ahslen);
-		if (cdgst != rdgst) {
-			printk(KERN_ERR "iscsi_tcp: hdrdgst error "
-			       "recv 0x%x calc 0x%x\n", rdgst, cdgst);
-			return ISCSI_ERR_HDR_DGST;
-		}
-	}
 
 	opcode = hdr->opcode & ISCSI_OPCODE_MASK;
 	/* verify itt (itt encoding: age+cid+itt) */
 	rc = iscsi_verify_itt(conn, hdr, &itt);
-	if (rc == ISCSI_ERR_NO_SCSI_CMD) {
-		tcp_conn->in.datalen = 0; /* force drop */
-		return 0;
-	} else if (rc)
+	if (rc)
 		return rc;
 
-	debug_tcp("opcode 0x%x offset %d copy %d ahslen %d datalen %d\n",
-		  opcode, tcp_conn->in.offset, tcp_conn->in.copy,
-		  ahslen, tcp_conn->in.datalen);
+	debug_tcp("opcode 0x%x ahslen %d datalen %d\n",
+		  opcode, ahslen, tcp_conn->in.datalen);
 
 	switch(opcode) {
 	case ISCSI_OP_SCSI_DATA_IN:
-		tcp_conn->in.ctask = session->cmds[itt];
-		rc = iscsi_data_rsp(conn, tcp_conn->in.ctask);
+		ctask = session->cmds[itt];
+		spin_lock(&conn->session->lock);
+		rc = iscsi_data_rsp(conn, ctask);
+		spin_unlock(&conn->session->lock);
 		if (rc)
 			return rc;
+		if (tcp_conn->in.datalen) {
+			struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
+			struct hash_desc *rx_hash = NULL;
+
+			/*
+			 * Setup copy of Data-In into the Scsi_Cmnd
+			 * Scatterlist case:
+			 * We set up the iscsi_segment to point to the next
+			 * scatterlist entry to copy to. As we go along,
+			 * we move on to the next scatterlist entry and
+			 * update the digest per-entry.
+			 */
+			if (conn->datadgst_en)
+				rx_hash = &tcp_conn->rx_hash;
+
+			debug_tcp("iscsi_tcp_begin_data_in(%p, offset=%d, "
+				  "datalen=%d)\n", tcp_conn,
+				  tcp_ctask->data_offset,
+				  tcp_conn->in.datalen);
+			return iscsi_segment_seek_sg(&tcp_conn->in.segment,
+						     scsi_sglist(ctask->sc),
+						     scsi_sg_count(ctask->sc),
+						     tcp_ctask->data_offset,
+						     tcp_conn->in.datalen,
+						     iscsi_tcp_process_data_in,
+						     rx_hash);
+		}
 		/* fall through */
 	case ISCSI_OP_SCSI_CMD_RSP:
-		tcp_conn->in.ctask = session->cmds[itt];
-		if (tcp_conn->in.datalen)
-			goto copy_hdr;
-
-		spin_lock(&session->lock);
-		rc = __iscsi_complete_pdu(conn, hdr, NULL, 0);
-		spin_unlock(&session->lock);
+		if (tcp_conn->in.datalen) {
+			iscsi_tcp_data_recv_prep(tcp_conn);
+			return 0;
+		}
+		rc = iscsi_complete_pdu(conn, hdr, NULL, 0);
 		break;
 	case ISCSI_OP_R2T:
-		tcp_conn->in.ctask = session->cmds[itt];
+		ctask = session->cmds[itt];
 		if (ahslen)
 			rc = ISCSI_ERR_AHSLEN;
-		else if (tcp_conn->in.ctask->sc->sc_data_direction ==
-								DMA_TO_DEVICE)
-			rc = iscsi_r2t_rsp(conn, tcp_conn->in.ctask);
-		else
+		else if (ctask->sc->sc_data_direction == DMA_TO_DEVICE) {
+			spin_lock(&session->lock);
+			rc = iscsi_r2t_rsp(conn, ctask);
+			spin_unlock(&session->lock);
+		} else
 			rc = ISCSI_ERR_PROTO;
 		break;
 	case ISCSI_OP_LOGIN_RSP:
@@ -520,8 +818,7 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 		 * than 8K, but there are no targets that currently do this.
 		 * For now we fail until we find a vendor that needs it
 		 */
-		if (ISCSI_DEF_MAX_RECV_SEG_LEN <
-		    tcp_conn->in.datalen) {
+		if (ISCSI_DEF_MAX_RECV_SEG_LEN < tcp_conn->in.datalen) {
 			printk(KERN_ERR "iscsi_tcp: received buffer of len %u "
 			      "but conn buffer is only %u (opcode %0x)\n",
 			      tcp_conn->in.datalen,
@@ -530,8 +827,13 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 			break;
 		}
 
-		if (tcp_conn->in.datalen)
-			goto copy_hdr;
+		/* If there's data coming in with the response,
+		 * receive it to the connection's buffer.
+		 */
+		if (tcp_conn->in.datalen) {
+			iscsi_tcp_data_recv_prep(tcp_conn);
+			return 0;
+		}
 	/* fall through */
 	case ISCSI_OP_LOGOUT_RSP:
 	case ISCSI_OP_NOOP_IN:
@@ -543,461 +845,161 @@ iscsi_tcp_hdr_recv(struct iscsi_conn *conn)
 		break;
 	}
 
-	return rc;
-
-copy_hdr:
-	/*
-	 * if we did zero copy for the header but we will need multiple
-	 * skbs to complete the command then we have to copy the header
-	 * for later use
-	 */
-	if (tcp_conn->in.zero_copy_hdr && tcp_conn->in.copy <=
-	   (tcp_conn->in.datalen + tcp_conn->in.padding +
-	    (conn->datadgst_en ? 4 : 0))) {
-		debug_tcp("Copying header for later use. in.copy %d in.datalen"
-			  " %d\n", tcp_conn->in.copy, tcp_conn->in.datalen);
-		memcpy(&tcp_conn->hdr, tcp_conn->in.hdr,
-		       sizeof(struct iscsi_hdr));
-		tcp_conn->in.hdr = &tcp_conn->hdr;
-		tcp_conn->in.zero_copy_hdr = 0;
-	}
-	return 0;
-}
-
-/**
- * iscsi_ctask_copy - copy skb bits to the destanation cmd task
- * @conn: iscsi tcp connection
- * @ctask: scsi command task
- * @buf: buffer to copy to
- * @buf_size: size of buffer
- * @offset: offset within the buffer
- *
- * Notes:
- *	The function calls skb_copy_bits() and updates per-connection and
- *	per-cmd byte counters.
- *
- *	Read counters (in bytes):
- *
- *	conn->in.offset		offset within in progress SKB
- *	conn->in.copy		left to copy from in progress SKB
- *				including padding
- *	conn->in.copied		copied already from in progress SKB
- *	conn->data_copied	copied already from in progress buffer
- *	ctask->sent		total bytes sent up to the MidLayer
- *	ctask->data_count	left to copy from in progress Data-In
- *	buf_left		left to copy from in progress buffer
- **/
-static inline int
-iscsi_ctask_copy(struct iscsi_tcp_conn *tcp_conn, struct iscsi_cmd_task *ctask,
-		void *buf, int buf_size, int offset)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	int buf_left = buf_size - (tcp_conn->data_copied + offset);
-	unsigned size = min(tcp_conn->in.copy, buf_left);
-	int rc;
-
-	size = min(size, ctask->data_count);
-
-	debug_tcp("ctask_copy %d bytes at offset %d copied %d\n",
-	       size, tcp_conn->in.offset, tcp_conn->in.copied);
-
-	BUG_ON(size <= 0);
-	BUG_ON(tcp_ctask->sent + size > scsi_bufflen(ctask->sc));
-
-	rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset,
-			   (char*)buf + (offset + tcp_conn->data_copied), size);
-	/* must fit into skb->len */
-	BUG_ON(rc);
-
-	tcp_conn->in.offset += size;
-	tcp_conn->in.copy -= size;
-	tcp_conn->in.copied += size;
-	tcp_conn->data_copied += size;
-	tcp_ctask->sent += size;
-	ctask->data_count -= size;
-
-	BUG_ON(tcp_conn->in.copy < 0);
-	BUG_ON(ctask->data_count < 0);
-
-	if (buf_size != (tcp_conn->data_copied + offset)) {
-		if (!ctask->data_count) {
-			BUG_ON(buf_size - tcp_conn->data_copied < 0);
-			/* done with this PDU */
-			return buf_size - tcp_conn->data_copied;
-		}
-		return -EAGAIN;
+	if (rc == 0) {
+		/* Anything that comes with data should have
+		 * been handled above. */
+		if (tcp_conn->in.datalen)
+			return ISCSI_ERR_PROTO;
+		iscsi_tcp_hdr_recv_prep(tcp_conn);
 	}
 
-	/* done with this buffer or with both - PDU and buffer */
-	tcp_conn->data_copied = 0;
-	return 0;
+	return rc;
 }
 
 /**
- * iscsi_tcp_copy - copy skb bits to the destanation buffer
- * @conn: iscsi tcp connection
+ * iscsi_tcp_hdr_recv_done - process PDU header
  *
- * Notes:
- *	The function calls skb_copy_bits() and updates per-connection
- *	byte counters.
- **/
-static inline int
-iscsi_tcp_copy(struct iscsi_conn *conn, int buf_size)
-{
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	int buf_left = buf_size - tcp_conn->data_copied;
-	int size = min(tcp_conn->in.copy, buf_left);
-	int rc;
-
-	debug_tcp("tcp_copy %d bytes at offset %d copied %d\n",
-	       size, tcp_conn->in.offset, tcp_conn->data_copied);
-	BUG_ON(size <= 0);
-
-	rc = skb_copy_bits(tcp_conn->in.skb, tcp_conn->in.offset,
-			   (char*)conn->data + tcp_conn->data_copied, size);
-	BUG_ON(rc);
-
-	tcp_conn->in.offset += size;
-	tcp_conn->in.copy -= size;
-	tcp_conn->in.copied += size;
-	tcp_conn->data_copied += size;
-
-	if (buf_size != tcp_conn->data_copied)
-		return -EAGAIN;
-
-	return 0;
-}
-
-static inline void
-partial_sg_digest_update(struct hash_desc *desc, struct scatterlist *sg,
-			 int offset, int length)
-{
-	struct scatterlist temp;
-
-	sg_init_table(&temp, 1);
-	sg_set_page(&temp, sg_page(sg), length, offset);
-	crypto_hash_update(desc, &temp, length);
-}
-
-static void
-iscsi_recv_digest_update(struct iscsi_tcp_conn *tcp_conn, char* buf, int len)
-{
-	struct scatterlist tmp;
-
-	sg_init_one(&tmp, buf, len);
-	crypto_hash_update(&tcp_conn->rx_hash, &tmp, len);
-}
-
-static int iscsi_scsi_data_in(struct iscsi_conn *conn)
+ * This is the callback invoked when the PDU header has
+ * been received. If the header is followed by additional
+ * header segments, we go back for more data.
+ */
+static int
+iscsi_tcp_hdr_recv_done(struct iscsi_tcp_conn *tcp_conn,
+			struct iscsi_segment *segment)
 {
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	struct iscsi_cmd_task *ctask = tcp_conn->in.ctask;
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct scsi_cmnd *sc = ctask->sc;
-	struct scatterlist *sg;
-	int i, offset, rc = 0;
-
-	BUG_ON((void*)ctask != sc->SCp.ptr);
-
-	offset = tcp_ctask->data_offset;
-	sg = scsi_sglist(sc);
-
-	if (tcp_ctask->data_offset)
-		for (i = 0; i < tcp_ctask->sg_count; i++)
-			offset -= sg[i].length;
-	/* we've passed through partial sg*/
-	if (offset < 0)
-		offset = 0;
-
-	for (i = tcp_ctask->sg_count; i < scsi_sg_count(sc); i++) {
-		char *dest;
-
-		dest = kmap_atomic(sg_page(&sg[i]), KM_SOFTIRQ0);
-		rc = iscsi_ctask_copy(tcp_conn, ctask, dest + sg[i].offset,
-				      sg[i].length, offset);
-		kunmap_atomic(dest, KM_SOFTIRQ0);
-		if (rc == -EAGAIN)
-			/* continue with the next SKB/PDU */
-			return rc;
-		if (!rc) {
-			if (conn->datadgst_en) {
-				if (!offset)
-					crypto_hash_update(
-							&tcp_conn->rx_hash,
-							&sg[i], sg[i].length);
-				else
-					partial_sg_digest_update(
-							&tcp_conn->rx_hash,
-							&sg[i],
-							sg[i].offset + offset,
-							sg[i].length - offset);
-			}
-			offset = 0;
-			tcp_ctask->sg_count++;
-		}
-
-		if (!ctask->data_count) {
-			if (rc && conn->datadgst_en)
-				/*
-				 * data-in is complete, but buffer not...
-				 */
-				partial_sg_digest_update(&tcp_conn->rx_hash,
-							 &sg[i],
-							 sg[i].offset,
-							 sg[i].length-rc);
-			rc = 0;
-			break;
-		}
-
-		if (!tcp_conn->in.copy)
-			return -EAGAIN;
-	}
-	BUG_ON(ctask->data_count);
+	struct iscsi_conn *conn = tcp_conn->iscsi_conn;
+	struct iscsi_hdr *hdr;
 
-	/* check for non-exceptional status */
-	if (tcp_conn->in.hdr->flags & ISCSI_FLAG_DATA_STATUS) {
-		debug_scsi("done [sc %lx res %d itt 0x%x flags 0x%x]\n",
-			   (long)sc, sc->result, ctask->itt,
-			   tcp_conn->in.hdr->flags);
-		spin_lock(&conn->session->lock);
-		__iscsi_complete_pdu(conn, tcp_conn->in.hdr, NULL, 0);
-		spin_unlock(&conn->session->lock);
+	/* Check if there are additional header segments
+	 * *prior* to computing the digest, because we
+	 * may need to go back to the caller for more.
+	 */
+	hdr = (struct iscsi_hdr *) tcp_conn->in.hdr_buf;
+	if (segment->copied == sizeof(struct iscsi_hdr) && hdr->hlength) {
+		/* Bump the header length - the caller will
+		 * just loop around and get the AHS for us, and
+		 * call again. */
+		unsigned int ahslen = hdr->hlength << 2;
+
+		/* Make sure we don't overflow */
+		if (sizeof(*hdr) + ahslen > sizeof(tcp_conn->in.hdr_buf))
+			return ISCSI_ERR_AHSLEN;
+
+		segment->total_size += ahslen;
+		segment->size += ahslen;
+		return 0;
 	}
 
-	return rc;
-}
-
-static int
-iscsi_data_recv(struct iscsi_conn *conn)
-{
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	int rc = 0, opcode;
-
-	opcode = tcp_conn->in.hdr->opcode & ISCSI_OPCODE_MASK;
-	switch (opcode) {
-	case ISCSI_OP_SCSI_DATA_IN:
-		rc = iscsi_scsi_data_in(conn);
-		break;
-	case ISCSI_OP_SCSI_CMD_RSP:
-	case ISCSI_OP_TEXT_RSP:
-	case ISCSI_OP_LOGIN_RSP:
-	case ISCSI_OP_ASYNC_EVENT:
-	case ISCSI_OP_REJECT:
-		/*
-		 * Collect data segment to the connection's data
-		 * placeholder
-		 */
-		if (iscsi_tcp_copy(conn, tcp_conn->in.datalen)) {
-			rc = -EAGAIN;
-			goto exit;
+	/* We're done processing the header. See if we're doing
+	 * header digests; if so, set up the recv_digest buffer
+	 * and go back for more. */
+	if (conn->hdrdgst_en) {
+		if (segment->digest_len == 0) {
+			iscsi_tcp_segment_splice_digest(segment,
+							segment->recv_digest);
+			return 0;
 		}
+		iscsi_tcp_dgst_header(&tcp_conn->rx_hash, hdr,
+				      segment->total_copied - ISCSI_DIGEST_SIZE,
+				      segment->digest);
 
-		rc = iscsi_complete_pdu(conn, tcp_conn->in.hdr, conn->data,
-					tcp_conn->in.datalen);
-		if (!rc && conn->datadgst_en && opcode != ISCSI_OP_LOGIN_RSP)
-			iscsi_recv_digest_update(tcp_conn, conn->data,
-			  			tcp_conn->in.datalen);
-		break;
-	default:
-		BUG_ON(1);
+		if (!iscsi_tcp_dgst_verify(tcp_conn, segment))
+			return ISCSI_ERR_HDR_DGST;
 	}
-exit:
-	return rc;
+
+	tcp_conn->in.hdr = hdr;
+	return iscsi_tcp_hdr_dissect(conn, hdr);
 }
 
 /**
- * iscsi_tcp_data_recv - TCP receive in sendfile fashion
+ * iscsi_tcp_recv - TCP receive in sendfile fashion
  * @rd_desc: read descriptor
  * @skb: socket buffer
  * @offset: offset in skb
  * @len: skb->len - offset
  **/
 static int
-iscsi_tcp_data_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
-		unsigned int offset, size_t len)
+iscsi_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
+	       unsigned int offset, size_t len)
 {
-	int rc;
 	struct iscsi_conn *conn = rd_desc->arg.data;
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	int processed;
-	char pad[ISCSI_PAD_LEN];
-	struct scatterlist sg;
-
-	/*
-	 * Save current SKB and its offset in the corresponding
-	 * connection context.
-	 */
-	tcp_conn->in.copy = skb->len - offset;
-	tcp_conn->in.offset = offset;
-	tcp_conn->in.skb = skb;
-	tcp_conn->in.len = tcp_conn->in.copy;
-	BUG_ON(tcp_conn->in.copy <= 0);
-	debug_tcp("in %d bytes\n", tcp_conn->in.copy);
+	struct iscsi_segment *segment = &tcp_conn->in.segment;
+	struct skb_seq_state seq;
+	unsigned int consumed = 0;
+	int rc = 0;
 
-more:
-	tcp_conn->in.copied = 0;
-	rc = 0;
+	debug_tcp("in %d bytes\n", skb->len - offset);
 
 	if (unlikely(conn->suspend_rx)) {
 		debug_tcp("conn %d Rx suspended!\n", conn->id);
 		return 0;
 	}
 
-	if (tcp_conn->in_progress == IN_PROGRESS_WAIT_HEADER ||
-	    tcp_conn->in_progress == IN_PROGRESS_HEADER_GATHER) {
-		rc = iscsi_hdr_extract(tcp_conn);
-		if (rc) {
-		       if (rc == -EAGAIN)
-				goto nomore;
-		       else {
-				iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-				return 0;
-		       }
-		}
+	skb_prepare_seq_read(skb, offset, skb->len, &seq);
+	while (1) {
+		unsigned int avail;
+		const u8 *ptr;
 
-		/*
-		 * Verify and process incoming PDU header.
-		 */
-		rc = iscsi_tcp_hdr_recv(conn);
-		if (!rc && tcp_conn->in.datalen) {
-			if (conn->datadgst_en)
-				crypto_hash_init(&tcp_conn->rx_hash);
-			tcp_conn->in_progress = IN_PROGRESS_DATA_RECV;
-		} else if (rc) {
-			iscsi_conn_failure(conn, rc);
-			return 0;
+		avail = skb_seq_read(consumed, &ptr, &seq);
+		if (avail == 0) {
+			debug_tcp("no more data avail. Consumed %d\n",
+				  consumed);
+			break;
 		}
-	}
-
-	if (tcp_conn->in_progress == IN_PROGRESS_DDIGEST_RECV &&
-	    tcp_conn->in.copy) {
-		uint32_t recv_digest;
-
-		debug_tcp("extra data_recv offset %d copy %d\n",
-			  tcp_conn->in.offset, tcp_conn->in.copy);
-
-		if (!tcp_conn->data_copied) {
-			if (tcp_conn->in.padding) {
-				debug_tcp("padding -> %d\n",
-					  tcp_conn->in.padding);
-				memset(pad, 0, tcp_conn->in.padding);
-				sg_init_one(&sg, pad, tcp_conn->in.padding);
-				crypto_hash_update(&tcp_conn->rx_hash,
-						   &sg, sg.length);
+		BUG_ON(segment->copied >= segment->size);
+
+		debug_tcp("skb %p ptr=%p avail=%u\n", skb, ptr, avail);
+		rc = iscsi_tcp_segment_recv(tcp_conn, segment, ptr, avail);
+		BUG_ON(rc == 0);
+		consumed += rc;
+
+		if (segment->total_copied >= segment->total_size) {
+			debug_tcp("segment done\n");
+			rc = segment->done(tcp_conn, segment);
+			if (rc != 0) {
+				skb_abort_seq_read(&seq);
+				goto error;
 			}
-			crypto_hash_final(&tcp_conn->rx_hash,
-					  (u8 *) &tcp_conn->in.datadgst);
-			debug_tcp("rx digest 0x%x\n", tcp_conn->in.datadgst);
-		}
 
-		rc = iscsi_tcp_copy(conn, sizeof(uint32_t));
-		if (rc) {
-			if (rc == -EAGAIN)
-				goto again;
-			iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-			return 0;
-		}
-
-		memcpy(&recv_digest, conn->data, sizeof(uint32_t));
-		if (recv_digest != tcp_conn->in.datadgst) {
-			debug_tcp("iscsi_tcp: data digest error!"
-				  "0x%x != 0x%x\n", recv_digest,
-				  tcp_conn->in.datadgst);
-			iscsi_conn_failure(conn, ISCSI_ERR_DATA_DGST);
-			return 0;
-		} else {
-			debug_tcp("iscsi_tcp: data digest match!"
-				  "0x%x == 0x%x\n", recv_digest,
-				  tcp_conn->in.datadgst);
-			tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
+			/* The done() functions sets up the
+			 * next segment. */
 		}
 	}
+	skb_abort_seq_read(&seq);
+	conn->rxdata_octets += consumed;
+	return consumed;
 
-	if (tcp_conn->in_progress == IN_PROGRESS_DATA_RECV &&
-	    tcp_conn->in.copy) {
-		debug_tcp("data_recv offset %d copy %d\n",
-		       tcp_conn->in.offset, tcp_conn->in.copy);
-
-		rc = iscsi_data_recv(conn);
-		if (rc) {
-			if (rc == -EAGAIN)
-				goto again;
-			iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-			return 0;
-		}
-
-		if (tcp_conn->in.padding)
-			tcp_conn->in_progress = IN_PROGRESS_PAD_RECV;
-		else if (conn->datadgst_en)
-			tcp_conn->in_progress = IN_PROGRESS_DDIGEST_RECV;
-		else
-			tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
-		tcp_conn->data_copied = 0;
-	}
-
-	if (tcp_conn->in_progress == IN_PROGRESS_PAD_RECV &&
-	    tcp_conn->in.copy) {
-		int copylen = min(tcp_conn->in.padding - tcp_conn->data_copied,
-				  tcp_conn->in.copy);
-
-		tcp_conn->in.copy -= copylen;
-		tcp_conn->in.offset += copylen;
-		tcp_conn->data_copied += copylen;
-
-		if (tcp_conn->data_copied != tcp_conn->in.padding)
-			tcp_conn->in_progress = IN_PROGRESS_PAD_RECV;
-		else if (conn->datadgst_en)
-			tcp_conn->in_progress = IN_PROGRESS_DDIGEST_RECV;
-		else
-			tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
-		tcp_conn->data_copied = 0;
-	}
-
-	debug_tcp("f, processed %d from out of %d padding %d\n",
-	       tcp_conn->in.offset - offset, (int)len, tcp_conn->in.padding);
-	BUG_ON(tcp_conn->in.offset - offset > len);
-
-	if (tcp_conn->in.offset - offset != len) {
-		debug_tcp("continue to process %d bytes\n",
-		       (int)len - (tcp_conn->in.offset - offset));
-		goto more;
-	}
-
-nomore:
-	processed = tcp_conn->in.offset - offset;
-	BUG_ON(processed == 0);
-	return processed;
-
-again:
-	processed = tcp_conn->in.offset - offset;
-	debug_tcp("c, processed %d from out of %d rd_desc_cnt %d\n",
-	          processed, (int)len, (int)rd_desc->count);
-	BUG_ON(processed == 0);
-	BUG_ON(processed > len);
-
-	conn->rxdata_octets += processed;
-	return processed;
+error:
+	debug_tcp("Error receiving PDU, errno=%d\n", rc);
+	iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+	return 0;
 }
 
 static void
 iscsi_tcp_data_ready(struct sock *sk, int flag)
 {
 	struct iscsi_conn *conn = sk->sk_user_data;
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 	read_descriptor_t rd_desc;
 
 	read_lock(&sk->sk_callback_lock);
 
 	/*
-	 * Use rd_desc to pass 'conn' to iscsi_tcp_data_recv.
+	 * Use rd_desc to pass 'conn' to iscsi_tcp_recv.
 	 * We set count to 1 because we want the network layer to
-	 * hand us all the skbs that are available. iscsi_tcp_data_recv
+	 * hand us all the skbs that are available. iscsi_tcp_recv
 	 * handled pdus that cross buffers or pdus that still need data.
 	 */
 	rd_desc.arg.data = conn;
 	rd_desc.count = 1;
-	tcp_read_sock(sk, &rd_desc, iscsi_tcp_data_recv);
+	tcp_read_sock(sk, &rd_desc, iscsi_tcp_recv);
 
 	read_unlock(&sk->sk_callback_lock);
+
+	/* If we had to (atomically) map a highmem page,
+	 * unmap it now. */
+	iscsi_tcp_segment_unmap(&tcp_conn->in.segment);
 }
 
 static void
@@ -1077,121 +1079,173 @@ iscsi_conn_restore_callbacks(struct iscsi_tcp_conn *tcp_conn)
 }
 
 /**
- * iscsi_send - generic send routine
- * @sk: kernel's socket
- * @buf: buffer to write from
- * @size: actual size to write
- * @flags: socket's flags
+ * iscsi_xmit - TCP transmit
+ **/
+static int
+iscsi_xmit(struct iscsi_conn *conn)
+{
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+	struct iscsi_segment *segment = &tcp_conn->out.segment;
+	unsigned int consumed = 0;
+	int rc = 0;
+
+	while (1) {
+		rc = iscsi_tcp_xmit_segment(tcp_conn, segment);
+		if (rc < 0)
+			goto error;
+		if (rc == 0)
+			break;
+
+		consumed += rc;
+
+		if (segment->total_copied >= segment->total_size) {
+			if (segment->done != NULL) {
+				rc = segment->done(tcp_conn, segment);
+				if (rc < 0)
+					goto error;
+			}
+		}
+	}
+
+	debug_tcp("xmit %d bytes\n", consumed);
+
+	conn->txdata_octets += consumed;
+	return consumed;
+
+error:
+	/* Transmit error. We could initiate error recovery
+	 * here. */
+	debug_tcp("Error sending PDU, errno=%d\n", rc);
+	iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+	return rc;
+}
+
+/**
+ * iscsi_tcp_xmit_qlen - return the number of bytes queued for xmit
  */
 static inline int
-iscsi_send(struct iscsi_conn *conn, struct iscsi_buf *buf, int size, int flags)
+iscsi_tcp_xmit_qlen(struct iscsi_conn *conn)
 {
 	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	struct socket *sk = tcp_conn->sock;
-	int offset = buf->sg.offset + buf->sent, res;
+	struct iscsi_segment *segment = &tcp_conn->out.segment;
 
-	/*
-	 * if we got use_sg=0 or are sending something we kmallocd
-	 * then we did not have to do kmap (kmap returns page_address)
-	 *
-	 * if we got use_sg > 0, but had to drop down, we do not
-	 * set clustering so this should only happen for that
-	 * slab case.
+	return segment->total_copied - segment->total_size;
+}
+
+static inline int
+iscsi_tcp_flush(struct iscsi_conn *conn)
+{
+	int rc;
+
+	while (iscsi_tcp_xmit_qlen(conn)) {
+		rc = iscsi_xmit(conn);
+		if (rc == 0)
+			return -EAGAIN;
+		if (rc < 0)
+			return rc;
+	}
+
+	return 0;
+}
+
+/*
+ * This is called when we're done sending the header.
+ * Simply copy the data_segment to the send segment, and return.
+ */
+static int
+iscsi_tcp_send_hdr_done(struct iscsi_tcp_conn *tcp_conn,
+			struct iscsi_segment *segment)
+{
+	tcp_conn->out.segment = tcp_conn->out.data_segment;
+	debug_tcp("Header done. Next segment size %u total_size %u\n",
+		  tcp_conn->out.segment.size, tcp_conn->out.segment.total_size);
+	return 0;
+}
+
+static void
+iscsi_tcp_send_hdr_prep(struct iscsi_conn *conn, void *hdr, size_t hdrlen)
+{
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+
+	debug_tcp("%s(%p%s)\n", __FUNCTION__, tcp_conn,
+			conn->hdrdgst_en? ", digest enabled" : "");
+
+	/* Clear the data segment - needs to be filled in by the
+	 * caller using iscsi_tcp_send_data_prep() */
+	memset(&tcp_conn->out.data_segment, 0, sizeof(struct iscsi_segment));
+
+	/* If header digest is enabled, compute the CRC and
+	 * place the digest into the same buffer. We make
+	 * sure that both iscsi_tcp_ctask and mtask have
+	 * sufficient room.
 	 */
-	if (buf->use_sendmsg)
-		res = sock_no_sendpage(sk, sg_page(&buf->sg), offset, size, flags);
-	else
-		res = tcp_conn->sendpage(sk, sg_page(&buf->sg), offset, size, flags);
-
-	if (res >= 0) {
-		conn->txdata_octets += res;
-		buf->sent += res;
-		return res;
+	if (conn->hdrdgst_en) {
+		iscsi_tcp_dgst_header(&tcp_conn->tx_hash, hdr, hdrlen,
+				      hdr + hdrlen);
+		hdrlen += ISCSI_DIGEST_SIZE;
 	}
 
-	tcp_conn->sendpage_failures_cnt++;
-	if (res == -EAGAIN)
-		res = -ENOBUFS;
-	else
-		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-	return res;
+	/* Remember header pointer for later, when we need
+	 * to decide whether there's a payload to go along
+	 * with the header. */
+	tcp_conn->out.hdr = hdr;
+
+	iscsi_segment_init_linear(&tcp_conn->out.segment, hdr, hdrlen,
+				iscsi_tcp_send_hdr_done, NULL);
 }
 
-/**
- * iscsi_sendhdr - send PDU Header via tcp_sendpage()
- * @conn: iscsi connection
- * @buf: buffer to write from
- * @datalen: lenght of data to be sent after the header
- *
- * Notes:
- *	(Tx, Fast Path)
- **/
-static inline int
-iscsi_sendhdr(struct iscsi_conn *conn, struct iscsi_buf *buf, int datalen)
+/*
+ * Prepare the send buffer for the payload data.
+ * Padding and checksumming will all be taken care
+ * of by the iscsi_segment routines.
+ */
+static int
+iscsi_tcp_send_data_prep(struct iscsi_conn *conn, struct scatterlist *sg,
+			 unsigned int count, unsigned int offset,
+			 unsigned int len)
 {
-	int flags = 0; /* MSG_DONTWAIT; */
-	int res, size;
-
-	size = buf->sg.length - buf->sent;
-	BUG_ON(buf->sent + size > buf->sg.length);
-	if (buf->sent + size != buf->sg.length || datalen)
-		flags |= MSG_MORE;
-
-	res = iscsi_send(conn, buf, size, flags);
-	debug_tcp("sendhdr %d bytes, sent %d res %d\n", size, buf->sent, res);
-	if (res >= 0) {
-		if (size != res)
-			return -EAGAIN;
-		return 0;
-	}
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+	struct hash_desc *tx_hash = NULL;
+	unsigned int hdr_spec_len;
 
-	return res;
-}
+	debug_tcp("%s(%p, offset=%d, datalen=%d%s)\n", __FUNCTION__,
+			tcp_conn, offset, len,
+			conn->datadgst_en? ", digest enabled" : "");
 
-/**
- * iscsi_sendpage - send one page of iSCSI Data-Out.
- * @conn: iscsi connection
- * @buf: buffer to write from
- * @count: remaining data
- * @sent: number of bytes sent
- *
- * Notes:
- *	(Tx, Fast Path)
- **/
-static inline int
-iscsi_sendpage(struct iscsi_conn *conn, struct iscsi_buf *buf,
-	       int *count, int *sent)
-{
-	int flags = 0; /* MSG_DONTWAIT; */
-	int res, size;
-
-	size = buf->sg.length - buf->sent;
-	BUG_ON(buf->sent + size > buf->sg.length);
-	if (size > *count)
-		size = *count;
-	if (buf->sent + size != buf->sg.length || *count != size)
-		flags |= MSG_MORE;
-
-	res = iscsi_send(conn, buf, size, flags);
-	debug_tcp("sendpage: %d bytes, sent %d left %d sent %d res %d\n",
-		  size, buf->sent, *count, *sent, res);
-	if (res >= 0) {
-		*count -= res;
-		*sent += res;
-		if (size != res)
-			return -EAGAIN;
-		return 0;
-	}
+	/* Make sure the datalen matches what the caller
+	   said he would send. */
+	hdr_spec_len = ntoh24(tcp_conn->out.hdr->dlength);
+	WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len));
+
+	if (conn->datadgst_en)
+		tx_hash = &tcp_conn->tx_hash;
 
-	return res;
+	return iscsi_segment_seek_sg(&tcp_conn->out.data_segment,
+				   sg, count, offset, len,
+				   NULL, tx_hash);
 }
 
-static inline void
-iscsi_data_digest_init(struct iscsi_tcp_conn *tcp_conn,
-		      struct iscsi_tcp_cmd_task *tcp_ctask)
+static void
+iscsi_tcp_send_linear_data_prepare(struct iscsi_conn *conn, void *data,
+				   size_t len)
 {
-	crypto_hash_init(&tcp_conn->tx_hash);
-	tcp_ctask->digest_count = 4;
+	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+	struct hash_desc *tx_hash = NULL;
+	unsigned int hdr_spec_len;
+
+	debug_tcp("%s(%p, datalen=%d%s)\n", __FUNCTION__, tcp_conn, len,
+		  conn->datadgst_en? ", digest enabled" : "");
+
+	/* Make sure the datalen matches what the caller
+	   said he would send. */
+	hdr_spec_len = ntoh24(tcp_conn->out.hdr->dlength);
+	WARN_ON(iscsi_padded(len) != iscsi_padded(hdr_spec_len));
+
+	if (conn->datadgst_en)
+		tx_hash = &tcp_conn->tx_hash;
+
+	iscsi_segment_init_linear(&tcp_conn->out.data_segment,
+				data, len, NULL, tx_hash);
 }
 
 /**
@@ -1207,12 +1261,17 @@ iscsi_data_digest_init(struct iscsi_tcp_conn *tcp_conn,
  *
  *	Called under connection lock.
  **/
-static void
+static int
 iscsi_solicit_data_cont(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
-			struct iscsi_r2t_info *r2t, int left)
+			struct iscsi_r2t_info *r2t)
 {
 	struct iscsi_data *hdr;
-	int new_offset;
+	int new_offset, left;
+
+	BUG_ON(r2t->data_length - r2t->sent < 0);
+	left = r2t->data_length - r2t->sent;
+	if (left == 0)
+		return 0;
 
 	hdr = &r2t->dtask.hdr;
 	memset(hdr, 0, sizeof(struct iscsi_data));
@@ -1233,43 +1292,46 @@ iscsi_solicit_data_cont(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
 		r2t->data_count = left;
 		hdr->flags = ISCSI_FLAG_CMD_FINAL;
 	}
-	conn->dataout_pdus_cnt++;
-
-	iscsi_buf_init_iov(&r2t->headbuf, (char*)hdr,
-			   sizeof(struct iscsi_hdr));
-
-	if (iscsi_buf_left(&r2t->sendbuf))
-		return;
-
-	iscsi_buf_init_sg(&r2t->sendbuf, r2t->sg);
-	r2t->sg += 1;
-}
-
-static void iscsi_set_padding(struct iscsi_tcp_cmd_task *tcp_ctask,
-			      unsigned long len)
-{
-	tcp_ctask->pad_count = len & (ISCSI_PAD_LEN - 1);
-	if (!tcp_ctask->pad_count)
-		return;
 
-	tcp_ctask->pad_count = ISCSI_PAD_LEN - tcp_ctask->pad_count;
-	debug_scsi("write padding %d bytes\n", tcp_ctask->pad_count);
-	set_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
+	conn->dataout_pdus_cnt++;
+	return 1;
 }
 
 /**
- * iscsi_tcp_cmd_init - Initialize iSCSI SCSI_READ or SCSI_WRITE commands
+ * iscsi_tcp_ctask - Initialize iSCSI SCSI_READ or SCSI_WRITE commands
  * @conn: iscsi connection
  * @ctask: scsi command task
  * @sc: scsi command
  **/
-static void
-iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
+static int
+iscsi_tcp_ctask_init(struct iscsi_cmd_task *ctask)
 {
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
+	struct iscsi_conn *conn = ctask->conn;
+	struct scsi_cmnd *sc = ctask->sc;
+	int err;
 
 	BUG_ON(__kfifo_len(tcp_ctask->r2tqueue));
-	tcp_ctask->xmstate = 1 << XMSTATE_BIT_CMD_HDR_INIT;
+	tcp_ctask->sent = 0;
+	tcp_ctask->exp_datasn = 0;
+
+	/* Prepare PDU, optionally w/ immediate data */
+	debug_scsi("ctask deq [cid %d itt 0x%x imm %d unsol %d]\n",
+		    conn->id, ctask->itt, ctask->imm_count,
+		    ctask->unsol_count);
+	iscsi_tcp_send_hdr_prep(conn, ctask->hdr, ctask->hdr_len);
+
+	if (!ctask->imm_count)
+		return 0;
+
+	/* If we have immediate data, attach a payload */
+	err = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc), scsi_sg_count(sc),
+				       0, ctask->imm_count);
+	if (err)
+		return err;
+	tcp_ctask->sent += ctask->imm_count;
+	ctask->imm_count = 0;
+	return 0;
 }
 
 /**
@@ -1281,484 +1343,130 @@ iscsi_tcp_cmd_init(struct iscsi_cmd_task *ctask)
  *	The function can return -EAGAIN in which case caller must
  *	call it again later, or recover. '0' return code means successful
  *	xmit.
- *
- *	Management xmit state machine consists of these states:
- *		XMSTATE_BIT_IMM_HDR_INIT - calculate digest of PDU Header
- *		XMSTATE_BIT_IMM_HDR      - PDU Header xmit in progress
- *		XMSTATE_BIT_IMM_DATA     - PDU Data xmit in progress
- *		XMSTATE_VALUE_IDLE       - management PDU is done
  **/
 static int
 iscsi_tcp_mtask_xmit(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 {
-	struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data;
 	int rc;
 
-	debug_scsi("mtask deq [cid %d state %x itt 0x%x]\n",
-		conn->id, tcp_mtask->xmstate, mtask->itt);
-
-	if (test_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate)) {
-		iscsi_buf_init_iov(&tcp_mtask->headbuf, (char*)mtask->hdr,
-				   sizeof(struct iscsi_hdr));
-
-		if (mtask->data_count) {
-			set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
-			iscsi_buf_init_iov(&tcp_mtask->sendbuf,
-					   (char*)mtask->data,
-					   mtask->data_count);
-		}
-
-		if (conn->c_stage != ISCSI_CONN_INITIAL_STAGE &&
-		    conn->stop_stage != STOP_CONN_RECOVER &&
-		    conn->hdrdgst_en)
-			iscsi_hdr_digest(conn, &tcp_mtask->headbuf,
-					(u8*)tcp_mtask->hdrext);
-
-		tcp_mtask->sent = 0;
-		clear_bit(XMSTATE_BIT_IMM_HDR_INIT, &tcp_mtask->xmstate);
-		set_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
-	}
-
-	if (test_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate)) {
-		rc = iscsi_sendhdr(conn, &tcp_mtask->headbuf,
-				   mtask->data_count);
-		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_IMM_HDR, &tcp_mtask->xmstate);
-	}
-
-	if (test_and_clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate)) {
-		BUG_ON(!mtask->data_count);
-		/* FIXME: implement.
-		 * Virtual buffer could be spreaded across multiple pages...
-		 */
-		do {
-			int rc;
-
-			rc = iscsi_sendpage(conn, &tcp_mtask->sendbuf,
-					&mtask->data_count, &tcp_mtask->sent);
-			if (rc) {
-				set_bit(XMSTATE_BIT_IMM_DATA, &tcp_mtask->xmstate);
-				return rc;
-			}
-		} while (mtask->data_count);
-	}
+	/* Flush any pending data first. */
+	rc = iscsi_tcp_flush(conn);
+	if (rc < 0)
+		return rc;
 
-	BUG_ON(tcp_mtask->xmstate != XMSTATE_VALUE_IDLE);
 	if (mtask->hdr->itt == RESERVED_ITT) {
 		struct iscsi_session *session = conn->session;
 
 		spin_lock_bh(&session->lock);
-		list_del(&conn->mtask->running);
-		__kfifo_put(session->mgmtpool.queue, (void*)&conn->mtask,
-			    sizeof(void*));
+		iscsi_free_mgmt_task(conn, mtask);
 		spin_unlock_bh(&session->lock);
 	}
+
 	return 0;
 }
 
+/*
+ * iscsi_tcp_ctask_xmit - xmit normal PDU task
+ * @conn: iscsi connection
+ * @ctask: iscsi command task
+ *
+ * We're expected to return 0 when everything was transmitted succesfully,
+ * -EAGAIN if there's still data in the queue, or != 0 for any other kind
+ * of error.
+ */
 static int
-iscsi_send_cmd_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
+iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
 {
-	struct scsi_cmnd *sc = ctask->sc;
 	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
+	struct scsi_cmnd *sc = ctask->sc;
 	int rc = 0;
 
-	if (test_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate)) {
-		tcp_ctask->sent = 0;
-		tcp_ctask->sg_count = 0;
-		tcp_ctask->exp_datasn = 0;
-
-		if (sc->sc_data_direction == DMA_TO_DEVICE) {
-			struct scatterlist *sg = scsi_sglist(sc);
-
-			iscsi_buf_init_sg(&tcp_ctask->sendbuf, sg);
-			tcp_ctask->sg = sg + 1;
-			tcp_ctask->bad_sg = sg + scsi_sg_count(sc);
-
-			debug_scsi("cmd [itt 0x%x total %d imm_data %d "
-				   "unsol count %d, unsol offset %d]\n",
-				   ctask->itt, scsi_bufflen(sc),
-				   ctask->imm_count, ctask->unsol_count,
-				   ctask->unsol_offset);
-		}
-
-		iscsi_buf_init_iov(&tcp_ctask->headbuf, (char*)ctask->hdr,
-				  sizeof(struct iscsi_hdr));
-
-		if (conn->hdrdgst_en)
-			iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
-					 (u8*)tcp_ctask->hdrext);
-		clear_bit(XMSTATE_BIT_CMD_HDR_INIT, &tcp_ctask->xmstate);
-		set_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
-	}
-
-	if (test_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate)) {
-		rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->imm_count);
-		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_CMD_HDR_XMIT, &tcp_ctask->xmstate);
-
-		if (sc->sc_data_direction != DMA_TO_DEVICE)
-			return 0;
-
-		if (ctask->imm_count) {
-			set_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
-			iscsi_set_padding(tcp_ctask, ctask->imm_count);
-
-			if (ctask->conn->datadgst_en) {
-				iscsi_data_digest_init(ctask->conn->dd_data,
-						       tcp_ctask);
-				tcp_ctask->immdigest = 0;
-			}
-		}
-
-		if (ctask->unsol_count) {
-			set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
-			set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
-		}
-	}
-	return rc;
-}
-
-static int
-iscsi_send_padding(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	int sent = 0, rc;
-
-	if (test_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate)) {
-		iscsi_buf_init_iov(&tcp_ctask->sendbuf, (char*)&tcp_ctask->pad,
-				   tcp_ctask->pad_count);
-		if (conn->datadgst_en)
-			crypto_hash_update(&tcp_conn->tx_hash,
-					   &tcp_ctask->sendbuf.sg,
-					   tcp_ctask->sendbuf.sg.length);
-	} else if (!test_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate))
-		return 0;
-
-	clear_bit(XMSTATE_BIT_W_PAD, &tcp_ctask->xmstate);
-	clear_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
-	debug_scsi("sending %d pad bytes for itt 0x%x\n",
-		   tcp_ctask->pad_count, ctask->itt);
-	rc = iscsi_sendpage(conn, &tcp_ctask->sendbuf, &tcp_ctask->pad_count,
-			   &sent);
-	if (rc) {
-		debug_scsi("padding send failed %d\n", rc);
-		set_bit(XMSTATE_BIT_W_RESEND_PAD, &tcp_ctask->xmstate);
-	}
-	return rc;
-}
-
-static int
-iscsi_send_digest(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
-			struct iscsi_buf *buf, uint32_t *digest)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask;
-	struct iscsi_tcp_conn *tcp_conn;
-	int rc, sent = 0;
-
-	if (!conn->datadgst_en)
-		return 0;
-
-	tcp_ctask = ctask->dd_data;
-	tcp_conn = conn->dd_data;
-
-	if (!test_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate)) {
-		crypto_hash_final(&tcp_conn->tx_hash, (u8*)digest);
-		iscsi_buf_init_iov(buf, (char*)digest, 4);
-	}
-	clear_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
-
-	rc = iscsi_sendpage(conn, buf, &tcp_ctask->digest_count, &sent);
-	if (!rc)
-		debug_scsi("sent digest 0x%x for itt 0x%x\n", *digest,
-			  ctask->itt);
-	else {
-		debug_scsi("sending digest 0x%x failed for itt 0x%x!\n",
-			  *digest, ctask->itt);
-		set_bit(XMSTATE_BIT_W_RESEND_DATA_DIGEST, &tcp_ctask->xmstate);
-	}
-	return rc;
-}
-
-static int
-iscsi_send_data(struct iscsi_cmd_task *ctask, struct iscsi_buf *sendbuf,
-		struct scatterlist **sg, int *sent, int *count,
-		struct iscsi_buf *digestbuf, uint32_t *digest)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct iscsi_conn *conn = ctask->conn;
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
-	int rc, buf_sent, offset;
-
-	while (*count) {
-		buf_sent = 0;
-		offset = sendbuf->sent;
-
-		rc = iscsi_sendpage(conn, sendbuf, count, &buf_sent);
-		*sent = *sent + buf_sent;
-		if (buf_sent && conn->datadgst_en)
-			partial_sg_digest_update(&tcp_conn->tx_hash,
-				&sendbuf->sg, sendbuf->sg.offset + offset,
-				buf_sent);
-		if (!iscsi_buf_left(sendbuf) && *sg != tcp_ctask->bad_sg) {
-			iscsi_buf_init_sg(sendbuf, *sg);
-			*sg = *sg + 1;
-		}
-
-		if (rc)
-			return rc;
-	}
-
-	rc = iscsi_send_padding(conn, ctask);
-	if (rc)
+flush:
+	/* Flush any pending data first. */
+	rc = iscsi_tcp_flush(conn);
+	if (rc < 0)
 		return rc;
 
-	return iscsi_send_digest(conn, ctask, digestbuf, digest);
-}
-
-static int
-iscsi_send_unsol_hdr(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct iscsi_data_task *dtask;
-	int rc;
-
-	set_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
-	if (test_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate)) {
-		dtask = &tcp_ctask->unsol_dtask;
-
-		iscsi_prep_unsolicit_data_pdu(ctask, &dtask->hdr);
-		iscsi_buf_init_iov(&tcp_ctask->headbuf, (char*)&dtask->hdr,
-				   sizeof(struct iscsi_hdr));
-		if (conn->hdrdgst_en)
-			iscsi_hdr_digest(conn, &tcp_ctask->headbuf,
-					(u8*)dtask->hdrext);
-
-		clear_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
-		iscsi_set_padding(tcp_ctask, ctask->data_count);
-	}
-
-	rc = iscsi_sendhdr(conn, &tcp_ctask->headbuf, ctask->data_count);
-	if (rc) {
-		clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
-		set_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate);
-		return rc;
-	}
+	/* Are we done already? */
+	if (sc->sc_data_direction != DMA_TO_DEVICE)
+		return 0;
 
-	if (conn->datadgst_en) {
-		dtask = &tcp_ctask->unsol_dtask;
-		iscsi_data_digest_init(ctask->conn->dd_data, tcp_ctask);
-		dtask->digest = 0;
-	}
+	if (ctask->unsol_count != 0) {
+		struct iscsi_data *hdr = &tcp_ctask->unsol_dtask.hdr;
 
-	debug_scsi("uns dout [itt 0x%x dlen %d sent %d]\n",
-		   ctask->itt, ctask->unsol_count, tcp_ctask->sent);
-	return 0;
-}
+		/* Prepare a header for the unsolicited PDU.
+		 * The amount of data we want to send will be
+		 * in ctask->data_count.
+		 * FIXME: return the data count instead.
+		 */
+		iscsi_prep_unsolicit_data_pdu(ctask, hdr);
 
-static int
-iscsi_send_unsol_pdu(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	int rc;
+		debug_tcp("unsol dout [itt 0x%x doff %d dlen %d]\n",
+				ctask->itt, tcp_ctask->sent, ctask->data_count);
 
-	if (test_and_clear_bit(XMSTATE_BIT_UNS_HDR, &tcp_ctask->xmstate)) {
-		BUG_ON(!ctask->unsol_count);
-send_hdr:
-		rc = iscsi_send_unsol_hdr(conn, ctask);
+		iscsi_tcp_send_hdr_prep(conn, hdr, sizeof(*hdr));
+		rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
+					      scsi_sg_count(sc),
+					      tcp_ctask->sent,
+					      ctask->data_count);
 		if (rc)
-			return rc;
-	}
-
-	if (test_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate)) {
-		struct iscsi_data_task *dtask = &tcp_ctask->unsol_dtask;
-		int start = tcp_ctask->sent;
+			goto fail;
+		tcp_ctask->sent += ctask->data_count;
+		ctask->unsol_count -= ctask->data_count;
+		goto flush;
+	} else {
+		struct iscsi_session *session = conn->session;
+		struct iscsi_r2t_info *r2t;
 
-		rc = iscsi_send_data(ctask, &tcp_ctask->sendbuf, &tcp_ctask->sg,
-				     &tcp_ctask->sent, &ctask->data_count,
-				     &dtask->digestbuf, &dtask->digest);
-		ctask->unsol_count -= tcp_ctask->sent - start;
-		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_UNS_DATA, &tcp_ctask->xmstate);
-		/*
-		 * Done with the Data-Out. Next, check if we need
-		 * to send another unsolicited Data-Out.
+		/* All unsolicited PDUs sent. Check for solicited PDUs.
 		 */
-		if (ctask->unsol_count) {
-			debug_scsi("sending more uns\n");
-			set_bit(XMSTATE_BIT_UNS_INIT, &tcp_ctask->xmstate);
-			goto send_hdr;
+		spin_lock_bh(&session->lock);
+		r2t = tcp_ctask->r2t;
+		if (r2t != NULL) {
+			/* Continue with this R2T? */
+			if (!iscsi_solicit_data_cont(conn, ctask, r2t)) {
+				debug_scsi("  done with r2t %p\n", r2t);
+
+				__kfifo_put(tcp_ctask->r2tpool.queue,
+					    (void*)&r2t, sizeof(void*));
+				tcp_ctask->r2t = r2t = NULL;
+			}
 		}
-	}
-	return 0;
-}
-
-static int iscsi_send_sol_pdu(struct iscsi_conn *conn,
-			      struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	struct iscsi_session *session = conn->session;
-	struct iscsi_r2t_info *r2t;
-	struct iscsi_data_task *dtask;
-	int left, rc;
 
-	if (test_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate)) {
-		if (!tcp_ctask->r2t) {
-			spin_lock_bh(&session->lock);
+		if (r2t == NULL) {
 			__kfifo_get(tcp_ctask->r2tqueue, (void*)&tcp_ctask->r2t,
 				    sizeof(void*));
-			spin_unlock_bh(&session->lock);
+			r2t = tcp_ctask->r2t;
 		}
-send_hdr:
-		r2t = tcp_ctask->r2t;
-		dtask = &r2t->dtask;
-
-		if (conn->hdrdgst_en)
-			iscsi_hdr_digest(conn, &r2t->headbuf,
-					(u8*)dtask->hdrext);
-		clear_bit(XMSTATE_BIT_SOL_HDR_INIT, &tcp_ctask->xmstate);
-		set_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
-	}
-
-	if (test_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate)) {
-		r2t = tcp_ctask->r2t;
-		dtask = &r2t->dtask;
-
-		rc = iscsi_sendhdr(conn, &r2t->headbuf, r2t->data_count);
-		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_SOL_HDR, &tcp_ctask->xmstate);
-		set_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
+		spin_unlock_bh(&session->lock);
 
-		if (conn->datadgst_en) {
-			iscsi_data_digest_init(conn->dd_data, tcp_ctask);
-			dtask->digest = 0;
+		/* Waiting for more R2Ts to arrive. */
+		if (r2t == NULL) {
+			debug_tcp("no R2Ts yet\n");
+			return 0;
 		}
 
-		iscsi_set_padding(tcp_ctask, r2t->data_count);
-		debug_scsi("sol dout [dsn %d itt 0x%x dlen %d sent %d]\n",
-			r2t->solicit_datasn - 1, ctask->itt, r2t->data_count,
-			r2t->sent);
-	}
+		debug_scsi("sol dout %p [dsn %d itt 0x%x doff %d dlen %d]\n",
+			r2t, r2t->solicit_datasn - 1, ctask->itt,
+			r2t->data_offset + r2t->sent, r2t->data_count);
 
-	if (test_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate)) {
-		r2t = tcp_ctask->r2t;
-		dtask = &r2t->dtask;
+		iscsi_tcp_send_hdr_prep(conn, &r2t->dtask.hdr,
+					sizeof(struct iscsi_hdr));
 
-		rc = iscsi_send_data(ctask, &r2t->sendbuf, &r2t->sg,
-				     &r2t->sent, &r2t->data_count,
-				     &dtask->digestbuf, &dtask->digest);
+		rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
+					      scsi_sg_count(sc),
+					      r2t->data_offset + r2t->sent,
+					      r2t->data_count);
 		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_SOL_DATA, &tcp_ctask->xmstate);
-
-		/*
-		 * Done with this Data-Out. Next, check if we have
-		 * to send another Data-Out for this R2T.
-		 */
-		BUG_ON(r2t->data_length - r2t->sent < 0);
-		left = r2t->data_length - r2t->sent;
-		if (left) {
-			iscsi_solicit_data_cont(conn, ctask, r2t, left);
-			goto send_hdr;
-		}
-
-		/*
-		 * Done with this R2T. Check if there are more
-		 * outstanding R2Ts ready to be processed.
-		 */
-		spin_lock_bh(&session->lock);
-		tcp_ctask->r2t = NULL;
-		__kfifo_put(tcp_ctask->r2tpool.queue, (void*)&r2t,
-			    sizeof(void*));
-		if (__kfifo_get(tcp_ctask->r2tqueue, (void*)&r2t,
-				sizeof(void*))) {
-			tcp_ctask->r2t = r2t;
-			spin_unlock_bh(&session->lock);
-			goto send_hdr;
-		}
-		spin_unlock_bh(&session->lock);
+			goto fail;
+		tcp_ctask->sent += r2t->data_count;
+		r2t->sent += r2t->data_count;
+		goto flush;
 	}
 	return 0;
-}
-
-/**
- * iscsi_tcp_ctask_xmit - xmit normal PDU task
- * @conn: iscsi connection
- * @ctask: iscsi command task
- *
- * Notes:
- *	The function can return -EAGAIN in which case caller must
- *	call it again later, or recover. '0' return code means successful
- *	xmit.
- *	The function is devided to logical helpers (above) for the different
- *	xmit stages.
- *
- *iscsi_send_cmd_hdr()
- *	XMSTATE_BIT_CMD_HDR_INIT - prepare Header and Data buffers Calculate
- *	                           Header Digest
- *	XMSTATE_BIT_CMD_HDR_XMIT - Transmit header in progress
- *
- *iscsi_send_padding
- *	XMSTATE_BIT_W_PAD        - Prepare and send pading
- *	XMSTATE_BIT_W_RESEND_PAD - retry send pading
- *
- *iscsi_send_digest
- *	XMSTATE_BIT_W_RESEND_DATA_DIGEST - Finalize and send Data Digest
- *	XMSTATE_BIT_W_RESEND_DATA_DIGEST - retry sending digest
- *
- *iscsi_send_unsol_hdr
- *	XMSTATE_BIT_UNS_INIT     - prepare un-solicit data header and digest
- *	XMSTATE_BIT_UNS_HDR      - send un-solicit header
- *
- *iscsi_send_unsol_pdu
- *	XMSTATE_BIT_UNS_DATA     - send un-solicit data in progress
- *
- *iscsi_send_sol_pdu
- *	XMSTATE_BIT_SOL_HDR_INIT - solicit data header and digest initialize
- *	XMSTATE_BIT_SOL_HDR      - send solicit header
- *	XMSTATE_BIT_SOL_DATA     - send solicit data
- *
- *iscsi_tcp_ctask_xmit
- *	XMSTATE_BIT_IMM_DATA     - xmit managment data (??)
- **/
-static int
-iscsi_tcp_ctask_xmit(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask)
-{
-	struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
-	int rc = 0;
-
-	debug_scsi("ctask deq [cid %d xmstate %x itt 0x%x]\n",
-		conn->id, tcp_ctask->xmstate, ctask->itt);
-
-	rc = iscsi_send_cmd_hdr(conn, ctask);
-	if (rc)
-		return rc;
-	if (ctask->sc->sc_data_direction != DMA_TO_DEVICE)
-		return 0;
-
-	if (test_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate)) {
-		rc = iscsi_send_data(ctask, &tcp_ctask->sendbuf, &tcp_ctask->sg,
-				     &tcp_ctask->sent, &ctask->imm_count,
-				     &tcp_ctask->immbuf, &tcp_ctask->immdigest);
-		if (rc)
-			return rc;
-		clear_bit(XMSTATE_BIT_IMM_DATA, &tcp_ctask->xmstate);
-	}
-
-	rc = iscsi_send_unsol_pdu(conn, ctask);
-	if (rc)
-		return rc;
-
-	rc = iscsi_send_sol_pdu(conn, ctask);
-	if (rc)
-		return rc;
-
-	return rc;
+fail:
+	iscsi_conn_failure(conn, rc);
+	return -EIO;
 }
 
 static struct iscsi_cls_conn *
@@ -1784,9 +1492,6 @@ iscsi_tcp_conn_create(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 
 	conn->dd_data = tcp_conn;
 	tcp_conn->iscsi_conn = conn;
-	tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
-	/* initial operational parameters */
-	tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
 
 	tcp_conn->tx_hash.tfm = crypto_alloc_hash("crc32c", 0,
 						  CRYPTO_ALG_ASYNC);
@@ -1863,11 +1568,9 @@ static void
 iscsi_tcp_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
 
 	iscsi_conn_stop(cls_conn, flag);
 	iscsi_tcp_release_conn(conn);
-	tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
 }
 
 static int iscsi_tcp_get_addr(struct iscsi_conn *conn, struct socket *sock,
@@ -1967,7 +1670,7 @@ iscsi_tcp_conn_bind(struct iscsi_cls_session *cls_session,
 	/*
 	 * set receive state machine into initial state
 	 */
-	tcp_conn->in_progress = IN_PROGRESS_WAIT_HEADER;
+	iscsi_tcp_hdr_recv_prep(tcp_conn);
 	return 0;
 
 free_socket:
@@ -1977,10 +1680,17 @@ free_socket:
 
 /* called with host lock */
 static void
-iscsi_tcp_mgmt_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
+iscsi_tcp_mtask_init(struct iscsi_conn *conn, struct iscsi_mgmt_task *mtask)
 {
-	struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data;
-	tcp_mtask->xmstate = 1 << XMSTATE_BIT_IMM_HDR_INIT;
+	debug_scsi("mtask deq [cid %d itt 0x%x]\n", conn->id, mtask->itt);
+
+	/* Prepare PDU, optionally w/ immediate data */
+	iscsi_tcp_send_hdr_prep(conn, mtask->hdr, sizeof(*mtask->hdr));
+
+	/* If we have immediate data, attach a payload */
+	if (mtask->data_count)
+		iscsi_tcp_send_linear_data_prepare(conn, mtask->data,
+						   mtask->data_count);
 }
 
 static int
@@ -2003,8 +1713,7 @@ iscsi_r2tpool_alloc(struct iscsi_session *session)
 		 */
 
 		/* R2T pool */
-		if (iscsi_pool_init(&tcp_ctask->r2tpool, session->max_r2t * 4,
-				    (void***)&tcp_ctask->r2ts,
+		if (iscsi_pool_init(&tcp_ctask->r2tpool, session->max_r2t * 4, NULL,
 				    sizeof(struct iscsi_r2t_info))) {
 			goto r2t_alloc_fail;
 		}
@@ -2013,8 +1722,7 @@ iscsi_r2tpool_alloc(struct iscsi_session *session)
 		tcp_ctask->r2tqueue = kfifo_alloc(
 		      session->max_r2t * 4 * sizeof(void*), GFP_KERNEL, NULL);
 		if (tcp_ctask->r2tqueue == ERR_PTR(-ENOMEM)) {
-			iscsi_pool_free(&tcp_ctask->r2tpool,
-					(void**)tcp_ctask->r2ts);
+			iscsi_pool_free(&tcp_ctask->r2tpool);
 			goto r2t_alloc_fail;
 		}
 	}
@@ -2027,8 +1735,7 @@ r2t_alloc_fail:
 		struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 
 		kfifo_free(tcp_ctask->r2tqueue);
-		iscsi_pool_free(&tcp_ctask->r2tpool,
-				(void**)tcp_ctask->r2ts);
+		iscsi_pool_free(&tcp_ctask->r2tpool);
 	}
 	return -ENOMEM;
 }
@@ -2043,8 +1750,7 @@ iscsi_r2tpool_free(struct iscsi_session *session)
 		struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 
 		kfifo_free(tcp_ctask->r2tqueue);
-		iscsi_pool_free(&tcp_ctask->r2tpool,
-				(void**)tcp_ctask->r2ts);
+		iscsi_pool_free(&tcp_ctask->r2tpool);
 	}
 }
 
@@ -2060,9 +1766,6 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
 	switch(param) {
 	case ISCSI_PARAM_HDRDGST_EN:
 		iscsi_set_param(cls_conn, param, buf, buflen);
-		tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
-		if (conn->hdrdgst_en)
-			tcp_conn->hdr_size += sizeof(__u32);
 		break;
 	case ISCSI_PARAM_DATADGST_EN:
 		iscsi_set_param(cls_conn, param, buf, buflen);
@@ -2071,12 +1774,12 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
 		break;
 	case ISCSI_PARAM_MAX_R2T:
 		sscanf(buf, "%d", &value);
-		if (session->max_r2t == roundup_pow_of_two(value))
+		if (value <= 0 || !is_power_of_2(value))
+			return -EINVAL;
+		if (session->max_r2t == value)
 			break;
 		iscsi_r2tpool_free(session);
 		iscsi_set_param(cls_conn, param, buf, buflen);
-		if (session->max_r2t & (session->max_r2t - 1))
-			session->max_r2t = roundup_pow_of_two(session->max_r2t);
 		if (iscsi_r2tpool_alloc(session))
 			return -ENOMEM;
 		break;
@@ -2183,14 +1886,15 @@ iscsi_tcp_session_create(struct iscsi_transport *iscsit,
 		struct iscsi_cmd_task *ctask = session->cmds[cmd_i];
 		struct iscsi_tcp_cmd_task *tcp_ctask = ctask->dd_data;
 
-		ctask->hdr = &tcp_ctask->hdr;
+		ctask->hdr = &tcp_ctask->hdr.cmd_hdr;
+		ctask->hdr_max = sizeof(tcp_ctask->hdr) - ISCSI_DIGEST_SIZE;
 	}
 
 	for (cmd_i = 0; cmd_i < session->mgmtpool_max; cmd_i++) {
 		struct iscsi_mgmt_task *mtask = session->mgmt_cmds[cmd_i];
 		struct iscsi_tcp_mgmt_task *tcp_mtask = mtask->dd_data;
 
-		mtask->hdr = &tcp_mtask->hdr;
+		mtask->hdr = (struct iscsi_hdr *) &tcp_mtask->hdr;
 	}
 
 	if (iscsi_r2tpool_alloc(class_to_transport_session(cls_session)))
@@ -2222,12 +1926,14 @@ static struct scsi_host_template iscsi_sht = {
 	.queuecommand           = iscsi_queuecommand,
 	.change_queue_depth	= iscsi_change_queue_depth,
 	.can_queue		= ISCSI_DEF_XMIT_CMDS_MAX - 1,
-	.sg_tablesize		= ISCSI_SG_TABLESIZE,
+	.sg_tablesize		= 4096,
 	.max_sectors		= 0xFFFF,
 	.cmd_per_lun		= ISCSI_DEF_CMD_PER_LUN,
 	.eh_abort_handler       = iscsi_eh_abort,
+	.eh_device_reset_handler= iscsi_eh_device_reset,
 	.eh_host_reset_handler	= iscsi_eh_host_reset,
 	.use_clustering         = DISABLE_CLUSTERING,
+	.use_sg_chaining	= ENABLE_SG_CHAINING,
 	.slave_configure        = iscsi_tcp_slave_configure,
 	.proc_name		= "iscsi_tcp",
 	.this_id		= -1,
@@ -2257,14 +1963,17 @@ static struct iscsi_transport iscsi_tcp_transport = {
 				  ISCSI_PERSISTENT_ADDRESS |
 				  ISCSI_TARGET_NAME | ISCSI_TPGT |
 				  ISCSI_USERNAME | ISCSI_PASSWORD |
-				  ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN,
+				  ISCSI_USERNAME_IN | ISCSI_PASSWORD_IN |
+				  ISCSI_FAST_ABORT | ISCSI_ABORT_TMO |
+				  ISCSI_LU_RESET_TMO |
+				  ISCSI_PING_TMO | ISCSI_RECV_TMO,
 	.host_param_mask	= ISCSI_HOST_HWADDRESS | ISCSI_HOST_IPADDRESS |
 				  ISCSI_HOST_INITIATOR_NAME |
 				  ISCSI_HOST_NETDEV_NAME,
 	.host_template		= &iscsi_sht,
 	.conndata_size		= sizeof(struct iscsi_conn),
 	.max_conn		= 1,
-	.max_cmd_len		= ISCSI_TCP_MAX_CMD_LEN,
+	.max_cmd_len		= 16,
 	/* session management */
 	.create_session		= iscsi_tcp_session_create,
 	.destroy_session	= iscsi_tcp_session_destroy,
@@ -2283,8 +1992,8 @@ static struct iscsi_transport iscsi_tcp_transport = {
 	/* IO */
 	.send_pdu		= iscsi_conn_send_pdu,
 	.get_stats		= iscsi_conn_get_stats,
-	.init_cmd_task		= iscsi_tcp_cmd_init,
-	.init_mgmt_task		= iscsi_tcp_mgmt_init,
+	.init_cmd_task		= iscsi_tcp_ctask_init,
+	.init_mgmt_task		= iscsi_tcp_mtask_init,
 	.xmit_cmd_task		= iscsi_tcp_ctask_xmit,
 	.xmit_mgmt_task		= iscsi_tcp_mtask_xmit,
 	.cleanup_cmd_task	= iscsi_tcp_cleanup_ctask,

drivers/scsi/iscsi_tcp.h

@@ -24,71 +24,61 @@
 
 #include <scsi/libiscsi.h>
 
-/* Socket's Receive state machine */
-#define IN_PROGRESS_WAIT_HEADER		0x0
-#define IN_PROGRESS_HEADER_GATHER	0x1
-#define IN_PROGRESS_DATA_RECV		0x2
-#define IN_PROGRESS_DDIGEST_RECV	0x3
-#define IN_PROGRESS_PAD_RECV		0x4
-
-/* xmit state machine */
-#define XMSTATE_VALUE_IDLE			0
-#define XMSTATE_BIT_CMD_HDR_INIT		0
-#define XMSTATE_BIT_CMD_HDR_XMIT		1
-#define XMSTATE_BIT_IMM_HDR			2
-#define XMSTATE_BIT_IMM_DATA			3
-#define XMSTATE_BIT_UNS_INIT			4
-#define XMSTATE_BIT_UNS_HDR			5
-#define XMSTATE_BIT_UNS_DATA			6
-#define XMSTATE_BIT_SOL_HDR			7
-#define XMSTATE_BIT_SOL_DATA			8
-#define XMSTATE_BIT_W_PAD			9
-#define XMSTATE_BIT_W_RESEND_PAD		10
-#define XMSTATE_BIT_W_RESEND_DATA_DIGEST	11
-#define XMSTATE_BIT_IMM_HDR_INIT		12
-#define XMSTATE_BIT_SOL_HDR_INIT		13
-
-#define ISCSI_PAD_LEN			4
-#define ISCSI_SG_TABLESIZE		SG_ALL
-#define ISCSI_TCP_MAX_CMD_LEN		16
-
 struct crypto_hash;
 struct socket;
+struct iscsi_tcp_conn;
+struct iscsi_segment;
+
+typedef int iscsi_segment_done_fn_t(struct iscsi_tcp_conn *,
+				    struct iscsi_segment *);
+
+struct iscsi_segment {
+	unsigned char		*data;
+	unsigned int		size;
+	unsigned int		copied;
+	unsigned int		total_size;
+	unsigned int		total_copied;
+
+	struct hash_desc	*hash;
+	unsigned char		recv_digest[ISCSI_DIGEST_SIZE];
+	unsigned char		digest[ISCSI_DIGEST_SIZE];
+	unsigned int		digest_len;
+
+	struct scatterlist	*sg;
+	void			*sg_mapped;
+	unsigned int		sg_offset;
+
+	iscsi_segment_done_fn_t	*done;
+};
 
 /* Socket connection recieve helper */
 struct iscsi_tcp_recv {
 	struct iscsi_hdr	*hdr;
-	struct sk_buff		*skb;
-	int			offset;
-	int			len;
-	int			hdr_offset;
-	int			copy;
-	int			copied;
-	int			padding;
-	struct iscsi_cmd_task	*ctask;		/* current cmd in progress */
+	struct iscsi_segment	segment;
+
+	/* Allocate buffer for BHS + AHS */
+	uint32_t		hdr_buf[64];
 
 	/* copied and flipped values */
 	int			datalen;
-	int			datadgst;
-	char			zero_copy_hdr;
+};
+
+/* Socket connection send helper */
+struct iscsi_tcp_send {
+	struct iscsi_hdr	*hdr;
+	struct iscsi_segment	segment;
+	struct iscsi_segment	data_segment;
 };
 
 struct iscsi_tcp_conn {
 	struct iscsi_conn	*iscsi_conn;
 	struct socket		*sock;
-	struct iscsi_hdr	hdr;		/* header placeholder */
-	char			hdrext[4*sizeof(__u16) +
-				    sizeof(__u32)];
-	int			data_copied;
 	int			stop_stage;	/* conn_stop() flag: *
 						 * stop to recover,  *
 						 * stop to terminate */
-	/* iSCSI connection-wide sequencing */
-	int			hdr_size;	/* PDU header size */
-
 	/* control data */
 	struct iscsi_tcp_recv	in;		/* TCP receive context */
-	int			in_progress;	/* connection state machine */
+	struct iscsi_tcp_send	out;		/* TCP send context */
 
 	/* old values for socket callbacks */
 	void			(*old_data_ready)(struct sock *, int);
@@ -103,29 +93,19 @@ struct iscsi_tcp_conn {
 	uint32_t		sendpage_failures_cnt;
 	uint32_t		discontiguous_hdr_cnt;
 
-	ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
-};
+	int			error;
 
-struct iscsi_buf {
-	struct scatterlist	sg;
-	unsigned int		sent;
-	char			use_sendmsg;
+	ssize_t (*sendpage)(struct socket *, struct page *, int, size_t, int);
 };
 
 struct iscsi_data_task {
 	struct iscsi_data	hdr;			/* PDU */
-	char			hdrext[sizeof(__u32)];	/* Header-Digest */
-	struct iscsi_buf	digestbuf;		/* digest buffer */
-	uint32_t		digest;			/* data digest */
+	char			hdrext[ISCSI_DIGEST_SIZE];/* Header-Digest */
 };
 
 struct iscsi_tcp_mgmt_task {
 	struct iscsi_hdr	hdr;
-	char			hdrext[sizeof(__u32)]; /* Header-Digest */
-	unsigned long		xmstate;	/* mgmt xmit progress */
-	struct iscsi_buf	headbuf;	/* header buffer */
-	struct iscsi_buf	sendbuf;	/* in progress buffer */
-	int			sent;
+	char			hdrext[ISCSI_DIGEST_SIZE]; /* Header-Digest */
 };
 
 struct iscsi_r2t_info {
@@ -133,38 +113,26 @@ struct iscsi_r2t_info {
 	__be32			exp_statsn;	/* copied from R2T */
 	uint32_t		data_length;	/* copied from R2T */
 	uint32_t		data_offset;	/* copied from R2T */
-	struct iscsi_buf	headbuf;	/* Data-Out Header Buffer */
-	struct iscsi_buf	sendbuf;	/* Data-Out in progress buffer*/
 	int			sent;		/* R2T sequence progress */
 	int			data_count;	/* DATA-Out payload progress */
-	struct scatterlist	*sg;		/* per-R2T SG list */
 	int			solicit_datasn;
-	struct iscsi_data_task   dtask;        /* which data task */
+	struct iscsi_data_task	dtask;		/* Data-Out header buf */
 };
 
 struct iscsi_tcp_cmd_task {
-	struct iscsi_cmd	hdr;
-	char			hdrext[4*sizeof(__u16)+	/* AHS */
-				    sizeof(__u32)];	/* HeaderDigest */
-	char			pad[ISCSI_PAD_LEN];
-	int			pad_count;		/* padded bytes */
-	struct iscsi_buf	headbuf;		/* header buf (xmit) */
-	struct iscsi_buf	sendbuf;		/* in progress buffer*/
-	unsigned long		xmstate;		/* xmit xtate machine */
+	struct iscsi_hdr_buff {
+		struct iscsi_cmd	cmd_hdr;
+		char			hdrextbuf[ISCSI_MAX_AHS_SIZE +
+		                                  ISCSI_DIGEST_SIZE];
+	} hdr;
+
 	int			sent;
-	struct scatterlist	*sg;			/* per-cmd SG list  */
-	struct scatterlist	*bad_sg;		/* assert statement */
-	int			sg_count;		/* SG's to process  */
-	uint32_t		exp_datasn;		/* expected target's R2TSN/DataSN */
+	uint32_t		exp_datasn;	/* expected target's R2TSN/DataSN */
 	int			data_offset;
-	struct iscsi_r2t_info	*r2t;			/* in progress R2T    */
-	struct iscsi_queue	r2tpool;
+	struct iscsi_r2t_info	*r2t;		/* in progress R2T    */
+	struct iscsi_pool	r2tpool;
 	struct kfifo		*r2tqueue;
-	struct iscsi_r2t_info	**r2ts;
-	int			digest_count;
-	uint32_t		immdigest;		/* for imm data */
-	struct iscsi_buf	immbuf;			/* for imm data digest */
-	struct iscsi_data_task	unsol_dtask;	/* unsol data task */
+	struct iscsi_data_task	unsol_dtask;	/* Data-Out header buf */
 };
 
 #endif /* ISCSI_H */

drivers/scsi/libiscsi.c

@@ -24,6 +24,7 @@
 #include <linux/types.h>
 #include <linux/kfifo.h>
 #include <linux/delay.h>
+#include <linux/log2.h>
 #include <asm/unaligned.h>
 #include <net/tcp.h>
 #include <scsi/scsi_cmnd.h>
@@ -86,7 +87,7 @@ iscsi_update_cmdsn(struct iscsi_session *session, struct iscsi_nopin *hdr)
 		 * xmit thread
 		 */
 		if (!list_empty(&session->leadconn->xmitqueue) ||
-		    __kfifo_len(session->leadconn->mgmtqueue))
+		    !list_empty(&session->leadconn->mgmtqueue))
 			scsi_queue_work(session->host,
 					&session->leadconn->xmitwork);
 	}
@@ -122,6 +123,20 @@ void iscsi_prep_unsolicit_data_pdu(struct iscsi_cmd_task *ctask,
 }
 EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu);
 
+static int iscsi_add_hdr(struct iscsi_cmd_task *ctask, unsigned len)
+{
+	unsigned exp_len = ctask->hdr_len + len;
+
+	if (exp_len > ctask->hdr_max) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	WARN_ON(len & (ISCSI_PAD_LEN - 1)); /* caller must pad the AHS */
+	ctask->hdr_len = exp_len;
+	return 0;
+}
+
 /**
  * iscsi_prep_scsi_cmd_pdu - prep iscsi scsi cmd pdu
  * @ctask: iscsi cmd task
@@ -129,27 +144,32 @@ EXPORT_SYMBOL_GPL(iscsi_prep_unsolicit_data_pdu);
  * Prep basic iSCSI PDU fields for a scsi cmd pdu. The LLD should set
  * fields like dlength or final based on how much data it sends
  */
-static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
+static int iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 {
 	struct iscsi_conn *conn = ctask->conn;
 	struct iscsi_session *session = conn->session;
 	struct iscsi_cmd *hdr = ctask->hdr;
 	struct scsi_cmnd *sc = ctask->sc;
+	unsigned hdrlength;
+	int rc;
 
-        hdr->opcode = ISCSI_OP_SCSI_CMD;
-        hdr->flags = ISCSI_ATTR_SIMPLE;
-        int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
-        hdr->itt = build_itt(ctask->itt, conn->id, session->age);
-        hdr->data_length = cpu_to_be32(scsi_bufflen(sc));
-        hdr->cmdsn = cpu_to_be32(session->cmdsn);
-        session->cmdsn++;
-        hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
-        memcpy(hdr->cdb, sc->cmnd, sc->cmd_len);
+	ctask->hdr_len = 0;
+	rc = iscsi_add_hdr(ctask, sizeof(*hdr));
+	if (rc)
+		return rc;
+	hdr->opcode = ISCSI_OP_SCSI_CMD;
+	hdr->flags = ISCSI_ATTR_SIMPLE;
+	int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
+	hdr->itt = build_itt(ctask->itt, conn->id, session->age);
+	hdr->data_length = cpu_to_be32(scsi_bufflen(sc));
+	hdr->cmdsn = cpu_to_be32(session->cmdsn);
+	session->cmdsn++;
+	hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
+	memcpy(hdr->cdb, sc->cmnd, sc->cmd_len);
 	if (sc->cmd_len < MAX_COMMAND_SIZE)
 		memset(&hdr->cdb[sc->cmd_len], 0,
 			MAX_COMMAND_SIZE - sc->cmd_len);
 
-	ctask->data_count = 0;
 	ctask->imm_count = 0;
 	if (sc->sc_data_direction == DMA_TO_DEVICE) {
 		hdr->flags |= ISCSI_FLAG_CMD_WRITE;
@@ -178,9 +198,9 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 			else
 				ctask->imm_count = min(scsi_bufflen(sc),
 							conn->max_xmit_dlength);
-			hton24(ctask->hdr->dlength, ctask->imm_count);
+			hton24(hdr->dlength, ctask->imm_count);
 		} else
-			zero_data(ctask->hdr->dlength);
+			zero_data(hdr->dlength);
 
 		if (!session->initial_r2t_en) {
 			ctask->unsol_count = min((session->first_burst),
@@ -190,7 +210,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 
 		if (!ctask->unsol_count)
 			/* No unsolicit Data-Out's */
-			ctask->hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+			hdr->flags |= ISCSI_FLAG_CMD_FINAL;
 	} else {
 		hdr->flags |= ISCSI_FLAG_CMD_FINAL;
 		zero_data(hdr->dlength);
@@ -199,13 +219,25 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
 			hdr->flags |= ISCSI_FLAG_CMD_READ;
 	}
 
-	conn->scsicmd_pdus_cnt++;
+	/* calculate size of additional header segments (AHSs) */
+	hdrlength = ctask->hdr_len - sizeof(*hdr);
+
+	WARN_ON(hdrlength & (ISCSI_PAD_LEN-1));
+	hdrlength /= ISCSI_PAD_LEN;
+
+	WARN_ON(hdrlength >= 256);
+	hdr->hlength = hdrlength & 0xFF;
+
+	if (conn->session->tt->init_cmd_task(conn->ctask))
+		return EIO;
 
-        debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
+	conn->scsicmd_pdus_cnt++;
+	debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
 		"cmdsn %d win %d]\n",
-                sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
+		sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
 		conn->id, sc, sc->cmnd[0], ctask->itt, scsi_bufflen(sc),
-                session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
+		session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
+	return 0;
 }
 
 /**
@@ -218,13 +250,16 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
  */
 static void iscsi_complete_command(struct iscsi_cmd_task *ctask)
 {
-	struct iscsi_session *session = ctask->conn->session;
+	struct iscsi_conn *conn = ctask->conn;
+	struct iscsi_session *session = conn->session;
 	struct scsi_cmnd *sc = ctask->sc;
 
 	ctask->state = ISCSI_TASK_COMPLETED;
 	ctask->sc = NULL;
 	/* SCSI eh reuses commands to verify us */
 	sc->SCp.ptr = NULL;
+	if (conn->ctask == ctask)
+		conn->ctask = NULL;
 	list_del_init(&ctask->running);
 	__kfifo_put(session->cmdpool.queue, (void*)&ctask, sizeof(void*));
 	sc->scsi_done(sc);
@@ -241,6 +276,112 @@ static void __iscsi_put_ctask(struct iscsi_cmd_task *ctask)
 		iscsi_complete_command(ctask);
 }
 
+/*
+ * session lock must be held
+ */
+static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
+			 int err)
+{
+	struct scsi_cmnd *sc;
+
+	sc = ctask->sc;
+	if (!sc)
+		return;
+
+	if (ctask->state == ISCSI_TASK_PENDING)
+		/*
+		 * cmd never made it to the xmit thread, so we should not count
+		 * the cmd in the sequencing
+		 */
+		conn->session->queued_cmdsn--;
+	else
+		conn->session->tt->cleanup_cmd_task(conn, ctask);
+
+	sc->result = err;
+	scsi_set_resid(sc, scsi_bufflen(sc));
+	if (conn->ctask == ctask)
+		conn->ctask = NULL;
+	/* release ref from queuecommand */
+	__iscsi_put_ctask(ctask);
+}
+
+/**
+ * iscsi_free_mgmt_task - return mgmt task back to pool
+ * @conn: iscsi connection
+ * @mtask: mtask
+ *
+ * Must be called with session lock.
+ */
+void iscsi_free_mgmt_task(struct iscsi_conn *conn,
+			  struct iscsi_mgmt_task *mtask)
+{
+	list_del_init(&mtask->running);
+	if (conn->login_mtask == mtask)
+		return;
+
+	if (conn->ping_mtask == mtask)
+		conn->ping_mtask = NULL;
+	__kfifo_put(conn->session->mgmtpool.queue,
+		    (void*)&mtask, sizeof(void*));
+}
+EXPORT_SYMBOL_GPL(iscsi_free_mgmt_task);
+
+static struct iscsi_mgmt_task *
+__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
+		      char *data, uint32_t data_size)
+{
+	struct iscsi_session *session = conn->session;
+	struct iscsi_mgmt_task *mtask;
+
+	if (session->state == ISCSI_STATE_TERMINATE)
+		return NULL;
+
+	if (hdr->opcode == (ISCSI_OP_LOGIN | ISCSI_OP_IMMEDIATE) ||
+	    hdr->opcode == (ISCSI_OP_TEXT | ISCSI_OP_IMMEDIATE))
+		/*
+		 * Login and Text are sent serially, in
+		 * request-followed-by-response sequence.
+		 * Same mtask can be used. Same ITT must be used.
+		 * Note that login_mtask is preallocated at conn_create().
+		 */
+		mtask = conn->login_mtask;
+	else {
+		BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
+		BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
+
+		if (!__kfifo_get(session->mgmtpool.queue,
+				 (void*)&mtask, sizeof(void*)))
+			return NULL;
+	}
+
+	if (data_size) {
+		memcpy(mtask->data, data, data_size);
+		mtask->data_count = data_size;
+	} else
+		mtask->data_count = 0;
+
+	memcpy(mtask->hdr, hdr, sizeof(struct iscsi_hdr));
+	INIT_LIST_HEAD(&mtask->running);
+	list_add_tail(&mtask->running, &conn->mgmtqueue);
+	return mtask;
+}
+
+int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr,
+			char *data, uint32_t data_size)
+{
+	struct iscsi_conn *conn = cls_conn->dd_data;
+	struct iscsi_session *session = conn->session;
+	int err = 0;
+
+	spin_lock_bh(&session->lock);
+	if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size))
+		err = -EPERM;
+	spin_unlock_bh(&session->lock);
+	scsi_queue_work(session->host, &conn->xmitwork);
+	return err;
+}
+EXPORT_SYMBOL_GPL(iscsi_conn_send_pdu);
+
 /**
  * iscsi_cmd_rsp - SCSI Command Response processing
  * @conn: iscsi connection
@@ -291,17 +432,19 @@ invalid_datalen:
 			   min_t(uint16_t, senselen, SCSI_SENSE_BUFFERSIZE));
 	}
 
-	if (rhdr->flags & ISCSI_FLAG_CMD_UNDERFLOW) {
+	if (rhdr->flags & (ISCSI_FLAG_CMD_UNDERFLOW |
+	                   ISCSI_FLAG_CMD_OVERFLOW)) {
 		int res_count = be32_to_cpu(rhdr->residual_count);
 
-		if (res_count > 0 && res_count <= scsi_bufflen(sc))
+		if (res_count > 0 &&
+		    (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
+		     res_count <= scsi_bufflen(sc)))
 			scsi_set_resid(sc, res_count);
 		else
 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
-	} else if (rhdr->flags & ISCSI_FLAG_CMD_BIDI_UNDERFLOW)
+	} else if (rhdr->flags & (ISCSI_FLAG_CMD_BIDI_UNDERFLOW |
+	                          ISCSI_FLAG_CMD_BIDI_OVERFLOW))
 		sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
-	else if (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW)
-		scsi_set_resid(sc, be32_to_cpu(rhdr->residual_count));
 
 out:
 	debug_scsi("done [sc %lx res %d itt 0x%x]\n",
@@ -318,18 +461,51 @@ static void iscsi_tmf_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
 	conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 	conn->tmfrsp_pdus_cnt++;
 
-	if (conn->tmabort_state != TMABORT_INITIAL)
+	if (conn->tmf_state != TMF_QUEUED)
 		return;
 
 	if (tmf->response == ISCSI_TMF_RSP_COMPLETE)
-		conn->tmabort_state = TMABORT_SUCCESS;
+		conn->tmf_state = TMF_SUCCESS;
 	else if (tmf->response == ISCSI_TMF_RSP_NO_TASK)
-		conn->tmabort_state = TMABORT_NOT_FOUND;
+		conn->tmf_state = TMF_NOT_FOUND;
 	else
-		conn->tmabort_state = TMABORT_FAILED;
+		conn->tmf_state = TMF_FAILED;
 	wake_up(&conn->ehwait);
 }
 
+static void iscsi_send_nopout(struct iscsi_conn *conn, struct iscsi_nopin *rhdr)
+{
+        struct iscsi_nopout hdr;
+	struct iscsi_mgmt_task *mtask;
+
+	if (!rhdr && conn->ping_mtask)
+		return;
+
+	memset(&hdr, 0, sizeof(struct iscsi_nopout));
+	hdr.opcode = ISCSI_OP_NOOP_OUT | ISCSI_OP_IMMEDIATE;
+	hdr.flags = ISCSI_FLAG_CMD_FINAL;
+
+	if (rhdr) {
+		memcpy(hdr.lun, rhdr->lun, 8);
+		hdr.ttt = rhdr->ttt;
+		hdr.itt = RESERVED_ITT;
+	} else
+		hdr.ttt = RESERVED_ITT;
+
+	mtask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)&hdr, NULL, 0);
+	if (!mtask) {
+		printk(KERN_ERR "Could not send nopout\n");
+		return;
+	}
+
+	/* only track our nops */
+	if (!rhdr) {
+		conn->ping_mtask = mtask;
+		conn->last_ping = jiffies;
+	}
+	scsi_queue_work(conn->session->host, &conn->xmitwork);
+}
+
 static int iscsi_handle_reject(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			       char *data, int datalen)
 {
@@ -374,6 +550,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 	struct iscsi_mgmt_task *mtask;
 	uint32_t itt;
 
+	conn->last_recv = jiffies;
 	if (hdr->itt != RESERVED_ITT)
 		itt = get_itt(hdr->itt);
 	else
@@ -429,10 +606,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			 */
 			if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
 				rc = ISCSI_ERR_CONN_FAILED;
-			list_del(&mtask->running);
-			if (conn->login_mtask != mtask)
-				__kfifo_put(session->mgmtpool.queue,
-					    (void*)&mtask, sizeof(void*));
+			iscsi_free_mgmt_task(conn, mtask);
 			break;
 		case ISCSI_OP_SCSI_TMFUNC_RSP:
 			if (datalen) {
@@ -441,20 +615,26 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			}
 
 			iscsi_tmf_rsp(conn, hdr);
+			iscsi_free_mgmt_task(conn, mtask);
 			break;
 		case ISCSI_OP_NOOP_IN:
-			if (hdr->ttt != cpu_to_be32(ISCSI_RESERVED_TAG) || datalen) {
+			if (hdr->ttt != cpu_to_be32(ISCSI_RESERVED_TAG) ||
+			    datalen) {
 				rc = ISCSI_ERR_PROTO;
 				break;
 			}
 			conn->exp_statsn = be32_to_cpu(hdr->statsn) + 1;
 
-			if (iscsi_recv_pdu(conn->cls_conn, hdr, data, datalen))
-				rc = ISCSI_ERR_CONN_FAILED;
-			list_del(&mtask->running);
-			if (conn->login_mtask != mtask)
-				__kfifo_put(session->mgmtpool.queue,
-					    (void*)&mtask, sizeof(void*));
+			if (conn->ping_mtask != mtask) {
+				/*
+				 * If this is not in response to one of our
+				 * nops then it must be from userspace.
+				 */
+				if (iscsi_recv_pdu(conn->cls_conn, hdr, data,
+						   datalen))
+					rc = ISCSI_ERR_CONN_FAILED;
+			}
+			iscsi_free_mgmt_task(conn, mtask);
 			break;
 		default:
 			rc = ISCSI_ERR_BAD_OPCODE;
@@ -473,8 +653,7 @@ int __iscsi_complete_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
 			if (hdr->ttt == cpu_to_be32(ISCSI_RESERVED_TAG))
 				break;
 
-			if (iscsi_recv_pdu(conn->cls_conn, hdr, NULL, 0))
-				rc = ISCSI_ERR_CONN_FAILED;
+			iscsi_send_nopout(conn, (struct iscsi_nopin*)hdr);
 			break;
 		case ISCSI_OP_REJECT:
 			rc = iscsi_handle_reject(conn, hdr, data, datalen);
@@ -609,20 +788,19 @@ static void iscsi_prep_mtask(struct iscsi_conn *conn,
 		session->tt->init_mgmt_task(conn, mtask);
 
 	debug_scsi("mgmtpdu [op 0x%x hdr->itt 0x%x datalen %d]\n",
-		   hdr->opcode, hdr->itt, mtask->data_count);
+		   hdr->opcode & ISCSI_OPCODE_MASK, hdr->itt,
+		   mtask->data_count);
 }
 
 static int iscsi_xmit_mtask(struct iscsi_conn *conn)
 {
 	struct iscsi_hdr *hdr = conn->mtask->hdr;
-	int rc, was_logout = 0;
+	int rc;
 
+	if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT)
+		conn->session->state = ISCSI_STATE_LOGGING_OUT;
 	spin_unlock_bh(&conn->session->lock);
-	if ((hdr->opcode & ISCSI_OPCODE_MASK) == ISCSI_OP_LOGOUT) {
-		conn->session->state = ISCSI_STATE_IN_RECOVERY;
-		iscsi_block_session(session_to_cls(conn->session));
-		was_logout = 1;
-	}
+
 	rc = conn->session->tt->xmit_mgmt_task(conn, conn->mtask);
 	spin_lock_bh(&conn->session->lock);
 	if (rc)
@@ -630,11 +808,6 @@ static int iscsi_xmit_mtask(struct iscsi_conn *conn)
 
 	/* done with this in-progress mtask */
 	conn->mtask = NULL;
-
-	if (was_logout) {
-		set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
-		return -ENODATA;
-	}
 	return 0;
 }
 
@@ -658,27 +831,35 @@ static int iscsi_check_cmdsn_window_closed(struct iscsi_conn *conn)
 static int iscsi_xmit_ctask(struct iscsi_conn *conn)
 {
 	struct iscsi_cmd_task *ctask = conn->ctask;
-	int rc = 0;
-
-	/*
-	 * serialize with TMF AbortTask
-	 */
-	if (ctask->state == ISCSI_TASK_ABORTING)
-		goto done;
+	int rc;
 
 	__iscsi_get_ctask(ctask);
 	spin_unlock_bh(&conn->session->lock);
 	rc = conn->session->tt->xmit_cmd_task(conn, ctask);
 	spin_lock_bh(&conn->session->lock);
 	__iscsi_put_ctask(ctask);
-
-done:
 	if (!rc)
 		/* done with this ctask */
 		conn->ctask = NULL;
 	return rc;
 }
 
+/**
+ * iscsi_requeue_ctask - requeue ctask to run from session workqueue
+ * @ctask: ctask to requeue
+ *
+ * LLDs that need to run a ctask from the session workqueue should call
+ * this. The session lock must be held.
+ */
+void iscsi_requeue_ctask(struct iscsi_cmd_task *ctask)
+{
+	struct iscsi_conn *conn = ctask->conn;
+
+	list_move_tail(&ctask->running, &conn->requeue);
+	scsi_queue_work(conn->session->host, &conn->xmitwork);
+}
+EXPORT_SYMBOL_GPL(iscsi_requeue_ctask);
+
 /**
  * iscsi_data_xmit - xmit any command into the scheduled connection
  * @conn: iscsi connection
@@ -717,36 +898,40 @@ static int iscsi_data_xmit(struct iscsi_conn *conn)
 	 * overflow us with nop-ins
 	 */
 check_mgmt:
-	while (__kfifo_get(conn->mgmtqueue, (void*)&conn->mtask,
-			   sizeof(void*))) {
+	while (!list_empty(&conn->mgmtqueue)) {
+		conn->mtask = list_entry(conn->mgmtqueue.next,
+					 struct iscsi_mgmt_task, running);
+		if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
+			iscsi_free_mgmt_task(conn, conn->mtask);
+			conn->mtask = NULL;
+			continue;
+		}
+
 		iscsi_prep_mtask(conn, conn->mtask);
-		list_add_tail(&conn->mtask->running, &conn->mgmt_run_list);
+		list_move_tail(conn->mgmtqueue.next, &conn->mgmt_run_list);
 		rc = iscsi_xmit_mtask(conn);
 		if (rc)
 			goto again;
 	}
 
-	/* process command queue */
+	/* process pending command queue */
 	while (!list_empty(&conn->xmitqueue)) {
-		/*
-		 * iscsi tcp may readd the task to the xmitqueue to send
-		 * write data
-		 */
+		if (conn->tmf_state == TMF_QUEUED)
+			break;
+
 		conn->ctask = list_entry(conn->xmitqueue.next,
 					 struct iscsi_cmd_task, running);
-		switch (conn->ctask->state) {
-		case ISCSI_TASK_ABORTING:
-			break;
-		case ISCSI_TASK_PENDING:
-			iscsi_prep_scsi_cmd_pdu(conn->ctask);
-			conn->session->tt->init_cmd_task(conn->ctask);
-			/* fall through */
-		default:
-			conn->ctask->state = ISCSI_TASK_RUNNING;
-			break;
+		if (conn->session->state == ISCSI_STATE_LOGGING_OUT) {
+			fail_command(conn, conn->ctask, DID_IMM_RETRY << 16);
+			continue;
+		}
+		if (iscsi_prep_scsi_cmd_pdu(conn->ctask)) {
+			fail_command(conn, conn->ctask, DID_ABORT << 16);
+			continue;
 		}
-		list_move_tail(conn->xmitqueue.next, &conn->run_list);
 
+		conn->ctask->state = ISCSI_TASK_RUNNING;
+		list_move_tail(conn->xmitqueue.next, &conn->run_list);
 		rc = iscsi_xmit_ctask(conn);
 		if (rc)
 			goto again;
@@ -755,7 +940,28 @@ check_mgmt:
 		 * we need to check the mgmt queue for nops that need to
 		 * be sent to aviod starvation
 		 */
-		if (__kfifo_len(conn->mgmtqueue))
+		if (!list_empty(&conn->mgmtqueue))
+			goto check_mgmt;
+	}
+
+	while (!list_empty(&conn->requeue)) {
+		if (conn->session->fast_abort && conn->tmf_state != TMF_INITIAL)
+			break;
+
+		/*
+		 * we always do fastlogout - conn stop code will clean up.
+		 */
+		if (conn->session->state == ISCSI_STATE_LOGGING_OUT)
+			break;
+
+		conn->ctask = list_entry(conn->requeue.next,
+					 struct iscsi_cmd_task, running);
+		conn->ctask->state = ISCSI_TASK_RUNNING;
+		list_move_tail(conn->requeue.next, &conn->run_list);
+		rc = iscsi_xmit_ctask(conn);
+		if (rc)
+			goto again;
+		if (!list_empty(&conn->mgmtqueue))
 			goto check_mgmt;
 	}
 	spin_unlock_bh(&conn->session->lock);
@@ -790,6 +996,7 @@ enum {
 	FAILURE_SESSION_TERMINATE,
 	FAILURE_SESSION_IN_RECOVERY,
 	FAILURE_SESSION_RECOVERY_TIMEOUT,
+	FAILURE_SESSION_LOGGING_OUT,
 };
 
 int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
@@ -805,8 +1012,9 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 	sc->SCp.ptr = NULL;
 
 	host = sc->device->host;
-	session = iscsi_hostdata(host->hostdata);
+	spin_unlock(host->host_lock);
 
+	session = iscsi_hostdata(host->hostdata);
 	spin_lock(&session->lock);
 
 	/*
@@ -822,17 +1030,22 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 		 * be entering our queuecommand while a block is starting
 		 * up because the block code is not locked)
 		 */
-		if (session->state == ISCSI_STATE_IN_RECOVERY) {
+		switch (session->state) {
+		case ISCSI_STATE_IN_RECOVERY:
 			reason = FAILURE_SESSION_IN_RECOVERY;
 			goto reject;
-		}
-
-		if (session->state == ISCSI_STATE_RECOVERY_FAILED)
+		case ISCSI_STATE_LOGGING_OUT:
+			reason = FAILURE_SESSION_LOGGING_OUT;
+			goto reject;
+		case ISCSI_STATE_RECOVERY_FAILED:
 			reason = FAILURE_SESSION_RECOVERY_TIMEOUT;
-		else if (session->state == ISCSI_STATE_TERMINATE)
+			break;
+		case ISCSI_STATE_TERMINATE:
 			reason = FAILURE_SESSION_TERMINATE;
-		else
+			break;
+		default:
 			reason = FAILURE_SESSION_FREED;
+		}
 		goto fault;
 	}
 
@@ -859,7 +1072,6 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 
 	atomic_set(&ctask->refcount, 1);
 	ctask->state = ISCSI_TASK_PENDING;
-	ctask->mtask = NULL;
 	ctask->conn = conn;
 	ctask->sc = sc;
 	INIT_LIST_HEAD(&ctask->running);
@@ -868,11 +1080,13 @@ int iscsi_queuecommand(struct scsi_cmnd *sc, void (*done)(struct scsi_cmnd *))
 	spin_unlock(&session->lock);
 
 	scsi_queue_work(host, &conn->xmitwork);
+	spin_lock(host->host_lock);
 	return 0;
 
 reject:
 	spin_unlock(&session->lock);
 	debug_scsi("cmd 0x%x rejected (%d)\n", sc->cmnd[0], reason);
+	spin_lock(host->host_lock);
 	return SCSI_MLQUEUE_HOST_BUSY;
 
 fault:
@@ -882,6 +1096,7 @@ fault:
 	sc->result = (DID_NO_CONNECT << 16);
 	scsi_set_resid(sc, scsi_bufflen(sc));
 	sc->scsi_done(sc);
+	spin_lock(host->host_lock);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(iscsi_queuecommand);
@@ -895,72 +1110,15 @@ int iscsi_change_queue_depth(struct scsi_device *sdev, int depth)
 }
 EXPORT_SYMBOL_GPL(iscsi_change_queue_depth);
 
-static struct iscsi_mgmt_task *
-__iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
-		      char *data, uint32_t data_size)
-{
-	struct iscsi_session *session = conn->session;
-	struct iscsi_mgmt_task *mtask;
-
-	if (session->state == ISCSI_STATE_TERMINATE)
-		return NULL;
-
-	if (hdr->opcode == (ISCSI_OP_LOGIN | ISCSI_OP_IMMEDIATE) ||
-	    hdr->opcode == (ISCSI_OP_TEXT | ISCSI_OP_IMMEDIATE))
-		/*
-		 * Login and Text are sent serially, in
-		 * request-followed-by-response sequence.
-		 * Same mtask can be used. Same ITT must be used.
-		 * Note that login_mtask is preallocated at conn_create().
-		 */
-		mtask = conn->login_mtask;
-	else {
-		BUG_ON(conn->c_stage == ISCSI_CONN_INITIAL_STAGE);
-		BUG_ON(conn->c_stage == ISCSI_CONN_STOPPED);
-
-		if (!__kfifo_get(session->mgmtpool.queue,
-				 (void*)&mtask, sizeof(void*)))
-			return NULL;
-	}
-
-	if (data_size) {
-		memcpy(mtask->data, data, data_size);
-		mtask->data_count = data_size;
-	} else
-		mtask->data_count = 0;
-
-	INIT_LIST_HEAD(&mtask->running);
-	memcpy(mtask->hdr, hdr, sizeof(struct iscsi_hdr));
-	__kfifo_put(conn->mgmtqueue, (void*)&mtask, sizeof(void*));
-	return mtask;
-}
-
-int iscsi_conn_send_pdu(struct iscsi_cls_conn *cls_conn, struct iscsi_hdr *hdr,
-			char *data, uint32_t data_size)
-{
-	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct iscsi_session *session = conn->session;
-	int err = 0;
-
-	spin_lock_bh(&session->lock);
-	if (!__iscsi_conn_send_pdu(conn, hdr, data, data_size))
-		err = -EPERM;
-	spin_unlock_bh(&session->lock);
-	scsi_queue_work(session->host, &conn->xmitwork);
-	return err;
-}
-EXPORT_SYMBOL_GPL(iscsi_conn_send_pdu);
-
 void iscsi_session_recovery_timedout(struct iscsi_cls_session *cls_session)
 {
 	struct iscsi_session *session = class_to_transport_session(cls_session);
-	struct iscsi_conn *conn = session->leadconn;
 
 	spin_lock_bh(&session->lock);
 	if (session->state != ISCSI_STATE_LOGGED_IN) {
 		session->state = ISCSI_STATE_RECOVERY_FAILED;
-		if (conn)
-			wake_up(&conn->ehwait);
+		if (session->leadconn)
+			wake_up(&session->leadconn->ehwait);
 	}
 	spin_unlock_bh(&session->lock);
 }
@@ -971,30 +1129,25 @@ int iscsi_eh_host_reset(struct scsi_cmnd *sc)
 	struct Scsi_Host *host = sc->device->host;
 	struct iscsi_session *session = iscsi_hostdata(host->hostdata);
 	struct iscsi_conn *conn = session->leadconn;
-	int fail_session = 0;
 
+	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
 	if (session->state == ISCSI_STATE_TERMINATE) {
 failed:
 		debug_scsi("failing host reset: session terminated "
 			   "[CID %d age %d]\n", conn->id, session->age);
 		spin_unlock_bh(&session->lock);
+		mutex_unlock(&session->eh_mutex);
 		return FAILED;
 	}
 
-	if (sc->SCp.phase == session->age) {
-		debug_scsi("failing connection CID %d due to SCSI host reset\n",
-			   conn->id);
-		fail_session = 1;
-	}
 	spin_unlock_bh(&session->lock);
-
+	mutex_unlock(&session->eh_mutex);
 	/*
 	 * we drop the lock here but the leadconn cannot be destoyed while
 	 * we are in the scsi eh
 	 */
-	if (fail_session)
-		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+	iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
 
 	debug_scsi("iscsi_eh_host_reset wait for relogin\n");
 	wait_event_interruptible(conn->ehwait,
@@ -1004,73 +1157,56 @@ failed:
 	if (signal_pending(current))
 		flush_signals(current);
 
+	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
 	if (session->state == ISCSI_STATE_LOGGED_IN)
 		printk(KERN_INFO "iscsi: host reset succeeded\n");
 	else
 		goto failed;
 	spin_unlock_bh(&session->lock);
-
+	mutex_unlock(&session->eh_mutex);
 	return SUCCESS;
 }
 EXPORT_SYMBOL_GPL(iscsi_eh_host_reset);
 
-static void iscsi_tmabort_timedout(unsigned long data)
+static void iscsi_tmf_timedout(unsigned long data)
 {
-	struct iscsi_cmd_task *ctask = (struct iscsi_cmd_task *)data;
-	struct iscsi_conn *conn = ctask->conn;
+	struct iscsi_conn *conn = (struct iscsi_conn *)data;
 	struct iscsi_session *session = conn->session;
 
 	spin_lock(&session->lock);
-	if (conn->tmabort_state == TMABORT_INITIAL) {
-		conn->tmabort_state = TMABORT_TIMEDOUT;
-		debug_scsi("tmabort timedout [sc %p itt 0x%x]\n",
-			ctask->sc, ctask->itt);
+	if (conn->tmf_state == TMF_QUEUED) {
+		conn->tmf_state = TMF_TIMEDOUT;
+		debug_scsi("tmf timedout\n");
 		/* unblock eh_abort() */
 		wake_up(&conn->ehwait);
 	}
 	spin_unlock(&session->lock);
 }
 
-static int iscsi_exec_abort_task(struct scsi_cmnd *sc,
-				 struct iscsi_cmd_task *ctask)
+static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
+				   struct iscsi_tm *hdr, int age,
+				   int timeout)
 {
-	struct iscsi_conn *conn = ctask->conn;
 	struct iscsi_session *session = conn->session;
-	struct iscsi_tm *hdr = &conn->tmhdr;
-
-	/*
-	 * ctask timed out but session is OK requests must be serialized.
-	 */
-	memset(hdr, 0, sizeof(struct iscsi_tm));
-	hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
-	hdr->flags = ISCSI_TM_FUNC_ABORT_TASK;
-	hdr->flags |= ISCSI_FLAG_CMD_FINAL;
-	memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun));
-	hdr->rtt = ctask->hdr->itt;
-	hdr->refcmdsn = ctask->hdr->cmdsn;
+	struct iscsi_mgmt_task *mtask;
 
-	ctask->mtask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr,
-					    NULL, 0);
-	if (!ctask->mtask) {
+	mtask = __iscsi_conn_send_pdu(conn, (struct iscsi_hdr *)hdr,
+				      NULL, 0);
+	if (!mtask) {
 		spin_unlock_bh(&session->lock);
 		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-		spin_lock_bh(&session->lock)
-		debug_scsi("abort sent failure [itt 0x%x]\n", ctask->itt);
+		spin_lock_bh(&session->lock);
+		debug_scsi("tmf exec failure\n");
 		return -EPERM;
 	}
-	ctask->state = ISCSI_TASK_ABORTING;
+	conn->tmfcmd_pdus_cnt++;
+	conn->tmf_timer.expires = timeout * HZ + jiffies;
+	conn->tmf_timer.function = iscsi_tmf_timedout;
+	conn->tmf_timer.data = (unsigned long)conn;
+	add_timer(&conn->tmf_timer);
+	debug_scsi("tmf set timeout\n");
 
-	debug_scsi("abort sent [itt 0x%x]\n", ctask->itt);
-
-	if (conn->tmabort_state == TMABORT_INITIAL) {
-		conn->tmfcmd_pdus_cnt++;
-		conn->tmabort_timer.expires = 20*HZ + jiffies;
-		conn->tmabort_timer.function = iscsi_tmabort_timedout;
-		conn->tmabort_timer.data = (unsigned long)ctask;
-		add_timer(&conn->tmabort_timer);
-		debug_scsi("abort set timeout [itt 0x%x]\n", ctask->itt);
-	}
 	spin_unlock_bh(&session->lock);
 	mutex_unlock(&session->eh_mutex);
 	scsi_queue_work(session->host, &conn->xmitwork);
@@ -1078,113 +1214,197 @@ static int iscsi_exec_abort_task(struct scsi_cmnd *sc,
 	/*
 	 * block eh thread until:
 	 *
-	 * 1) abort response
-	 * 2) abort timeout
+	 * 1) tmf response
+	 * 2) tmf timeout
 	 * 3) session is terminated or restarted or userspace has
 	 * given up on recovery
 	 */
-	wait_event_interruptible(conn->ehwait,
-				 sc->SCp.phase != session->age ||
+	wait_event_interruptible(conn->ehwait, age != session->age ||
 				 session->state != ISCSI_STATE_LOGGED_IN ||
-				 conn->tmabort_state != TMABORT_INITIAL);
+				 conn->tmf_state != TMF_QUEUED);
 	if (signal_pending(current))
 		flush_signals(current);
-	del_timer_sync(&conn->tmabort_timer);
+	del_timer_sync(&conn->tmf_timer);
+
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
+	/* if the session drops it will clean up the mtask */
+	if (age != session->age ||
+	    session->state != ISCSI_STATE_LOGGED_IN)
+		return -ENOTCONN;
 	return 0;
 }
 
 /*
- * session lock must be held
+ * Fail commands. session lock held and recv side suspended and xmit
+ * thread flushed
  */
-static struct iscsi_mgmt_task *
-iscsi_remove_mgmt_task(struct kfifo *fifo, uint32_t itt)
+static void fail_all_commands(struct iscsi_conn *conn, unsigned lun)
 {
-	int i, nr_tasks = __kfifo_len(fifo) / sizeof(void*);
-	struct iscsi_mgmt_task *task;
+	struct iscsi_cmd_task *ctask, *tmp;
 
-	debug_scsi("searching %d tasks\n", nr_tasks);
+	if (conn->ctask && (conn->ctask->sc->device->lun == lun || lun == -1))
+		conn->ctask = NULL;
 
-	for (i = 0; i < nr_tasks; i++) {
-		__kfifo_get(fifo, (void*)&task, sizeof(void*));
-		debug_scsi("check task %u\n", task->itt);
+	/* flush pending */
+	list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) {
+		if (lun == ctask->sc->device->lun || lun == -1) {
+			debug_scsi("failing pending sc %p itt 0x%x\n",
+				   ctask->sc, ctask->itt);
+			fail_command(conn, ctask, DID_BUS_BUSY << 16);
+		}
+	}
 
-		if (task->itt == itt) {
-			debug_scsi("matched task\n");
-			return task;
+	list_for_each_entry_safe(ctask, tmp, &conn->requeue, running) {
+		if (lun == ctask->sc->device->lun || lun == -1) {
+			debug_scsi("failing requeued sc %p itt 0x%x\n",
+				   ctask->sc, ctask->itt);
+			fail_command(conn, ctask, DID_BUS_BUSY << 16);
 		}
+	}
 
-		__kfifo_put(fifo, (void*)&task, sizeof(void*));
+	/* fail all other running */
+	list_for_each_entry_safe(ctask, tmp, &conn->run_list, running) {
+		if (lun == ctask->sc->device->lun || lun == -1) {
+			debug_scsi("failing in progress sc %p itt 0x%x\n",
+				   ctask->sc, ctask->itt);
+			fail_command(conn, ctask, DID_BUS_BUSY << 16);
+		}
 	}
-	return NULL;
 }
 
-static int iscsi_ctask_mtask_cleanup(struct iscsi_cmd_task *ctask)
+static void iscsi_suspend_tx(struct iscsi_conn *conn)
 {
-	struct iscsi_conn *conn = ctask->conn;
-	struct iscsi_session *session = conn->session;
-
-	if (!ctask->mtask)
-		return -EINVAL;
+	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
+	scsi_flush_work(conn->session->host);
+}
 
-	if (!iscsi_remove_mgmt_task(conn->mgmtqueue, ctask->mtask->itt))
-		list_del(&ctask->mtask->running);
-	__kfifo_put(session->mgmtpool.queue, (void*)&ctask->mtask,
-		    sizeof(void*));
-	ctask->mtask = NULL;
-	return 0;
+static void iscsi_start_tx(struct iscsi_conn *conn)
+{
+	clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
+	scsi_queue_work(conn->session->host, &conn->xmitwork);
 }
 
-/*
- * session lock must be held
- */
-static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
-			 int err)
+static enum scsi_eh_timer_return iscsi_eh_cmd_timed_out(struct scsi_cmnd *scmd)
 {
-	struct scsi_cmnd *sc;
+	struct iscsi_cls_session *cls_session;
+	struct iscsi_session *session;
+	struct iscsi_conn *conn;
+	enum scsi_eh_timer_return rc = EH_NOT_HANDLED;
 
-	sc = ctask->sc;
-	if (!sc)
-		return;
+	cls_session = starget_to_session(scsi_target(scmd->device));
+	session = class_to_transport_session(cls_session);
 
-	if (ctask->state == ISCSI_TASK_PENDING)
+	debug_scsi("scsi cmd %p timedout\n", scmd);
+
+	spin_lock(&session->lock);
+	if (session->state != ISCSI_STATE_LOGGED_IN) {
 		/*
-		 * cmd never made it to the xmit thread, so we should not count
-		 * the cmd in the sequencing
+		 * We are probably in the middle of iscsi recovery so let
+		 * that complete and handle the error.
 		 */
-		conn->session->queued_cmdsn--;
-	else
-		conn->session->tt->cleanup_cmd_task(conn, ctask);
-	iscsi_ctask_mtask_cleanup(ctask);
+		rc = EH_RESET_TIMER;
+		goto done;
+	}
 
-	sc->result = err;
-	scsi_set_resid(sc, scsi_bufflen(sc));
-	if (conn->ctask == ctask)
-		conn->ctask = NULL;
-	/* release ref from queuecommand */
-	__iscsi_put_ctask(ctask);
+	conn = session->leadconn;
+	if (!conn) {
+		/* In the middle of shuting down */
+		rc = EH_RESET_TIMER;
+		goto done;
+	}
+
+	if (!conn->recv_timeout && !conn->ping_timeout)
+		goto done;
+	/*
+	 * if the ping timedout then we are in the middle of cleaning up
+	 * and can let the iscsi eh handle it
+	 */
+	if (time_before_eq(conn->last_recv + (conn->recv_timeout * HZ) +
+			    (conn->ping_timeout * HZ), jiffies))
+		rc = EH_RESET_TIMER;
+	/*
+	 * if we are about to check the transport then give the command
+	 * more time
+	 */
+	if (time_before_eq(conn->last_recv + (conn->recv_timeout * HZ),
+			   jiffies))
+		rc = EH_RESET_TIMER;
+	/* if in the middle of checking the transport then give us more time */
+	if (conn->ping_mtask)
+		rc = EH_RESET_TIMER;
+done:
+	spin_unlock(&session->lock);
+	debug_scsi("return %s\n", rc == EH_RESET_TIMER ? "timer reset" : "nh");
+	return rc;
 }
 
-static void iscsi_suspend_tx(struct iscsi_conn *conn)
+static void iscsi_check_transport_timeouts(unsigned long data)
 {
-	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
-	scsi_flush_work(conn->session->host);
+	struct iscsi_conn *conn = (struct iscsi_conn *)data;
+	struct iscsi_session *session = conn->session;
+	unsigned long timeout, next_timeout = 0, last_recv;
+
+	spin_lock(&session->lock);
+	if (session->state != ISCSI_STATE_LOGGED_IN)
+		goto done;
+
+	timeout = conn->recv_timeout;
+	if (!timeout)
+		goto done;
+
+	timeout *= HZ;
+	last_recv = conn->last_recv;
+	if (time_before_eq(last_recv + timeout + (conn->ping_timeout * HZ),
+			   jiffies)) {
+		printk(KERN_ERR "ping timeout of %d secs expired, "
+		       "last rx %lu, last ping %lu, now %lu\n",
+		       conn->ping_timeout, last_recv,
+		       conn->last_ping, jiffies);
+		spin_unlock(&session->lock);
+		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+		return;
+	}
+
+	if (time_before_eq(last_recv + timeout, jiffies)) {
+		if (time_before_eq(conn->last_ping, last_recv)) {
+			/* send a ping to try to provoke some traffic */
+			debug_scsi("Sending nopout as ping on conn %p\n", conn);
+			iscsi_send_nopout(conn, NULL);
+		}
+		next_timeout = last_recv + timeout + (conn->ping_timeout * HZ);
+	} else {
+		next_timeout = last_recv + timeout;
+	}
+
+	if (next_timeout) {
+		debug_scsi("Setting next tmo %lu\n", next_timeout);
+		mod_timer(&conn->transport_timer, next_timeout);
+	}
+done:
+	spin_unlock(&session->lock);
 }
 
-static void iscsi_start_tx(struct iscsi_conn *conn)
+static void iscsi_prep_abort_task_pdu(struct iscsi_cmd_task *ctask,
+				      struct iscsi_tm *hdr)
 {
-	clear_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
-	scsi_queue_work(conn->session->host, &conn->xmitwork);
+	memset(hdr, 0, sizeof(*hdr));
+	hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
+	hdr->flags = ISCSI_TM_FUNC_ABORT_TASK & ISCSI_FLAG_TM_FUNC_MASK;
+	hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+	memcpy(hdr->lun, ctask->hdr->lun, sizeof(hdr->lun));
+	hdr->rtt = ctask->hdr->itt;
+	hdr->refcmdsn = ctask->hdr->cmdsn;
 }
 
 int iscsi_eh_abort(struct scsi_cmnd *sc)
 {
 	struct Scsi_Host *host = sc->device->host;
 	struct iscsi_session *session = iscsi_hostdata(host->hostdata);
-	struct iscsi_cmd_task *ctask;
 	struct iscsi_conn *conn;
-	int rc;
+	struct iscsi_cmd_task *ctask;
+	struct iscsi_tm *hdr;
+	int rc, age;
 
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
@@ -1199,19 +1419,23 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		return SUCCESS;
 	}
 
-	ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
-	conn = ctask->conn;
-
-	conn->eh_abort_cnt++;
-	debug_scsi("aborting [sc %p itt 0x%x]\n", sc, ctask->itt);
-
 	/*
 	 * If we are not logged in or we have started a new session
 	 * then let the host reset code handle this
 	 */
-	if (session->state != ISCSI_STATE_LOGGED_IN ||
-	    sc->SCp.phase != session->age)
-		goto failed;
+	if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN ||
+	    sc->SCp.phase != session->age) {
+		spin_unlock_bh(&session->lock);
+		mutex_unlock(&session->eh_mutex);
+		return FAILED;
+	}
+
+	conn = session->leadconn;
+	conn->eh_abort_cnt++;
+	age = session->age;
+
+	ctask = (struct iscsi_cmd_task *)sc->SCp.ptr;
+	debug_scsi("aborting [sc %p itt 0x%x]\n", sc, ctask->itt);
 
 	/* ctask completed before time out */
 	if (!ctask->sc) {
@@ -1219,27 +1443,26 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		goto success;
 	}
 
-	/* what should we do here ? */
-	if (conn->ctask == ctask) {
-		printk(KERN_INFO "iscsi: sc %p itt 0x%x partially sent. "
-		       "Failing abort\n", sc, ctask->itt);
-		goto failed;
-	}
-
 	if (ctask->state == ISCSI_TASK_PENDING) {
 		fail_command(conn, ctask, DID_ABORT << 16);
 		goto success;
 	}
 
-	conn->tmabort_state = TMABORT_INITIAL;
-	rc = iscsi_exec_abort_task(sc, ctask);
-	if (rc || sc->SCp.phase != session->age ||
-	    session->state != ISCSI_STATE_LOGGED_IN)
+	/* only have one tmf outstanding at a time */
+	if (conn->tmf_state != TMF_INITIAL)
+		goto failed;
+	conn->tmf_state = TMF_QUEUED;
+
+	hdr = &conn->tmhdr;
+	iscsi_prep_abort_task_pdu(ctask, hdr);
+
+	if (iscsi_exec_task_mgmt_fn(conn, hdr, age, session->abort_timeout)) {
+		rc = FAILED;
 		goto failed;
-	iscsi_ctask_mtask_cleanup(ctask);
+	}
 
-	switch (conn->tmabort_state) {
-	case TMABORT_SUCCESS:
+	switch (conn->tmf_state) {
+	case TMF_SUCCESS:
 		spin_unlock_bh(&session->lock);
 		iscsi_suspend_tx(conn);
 		/*
@@ -1248,22 +1471,26 @@ int iscsi_eh_abort(struct scsi_cmnd *sc)
 		write_lock_bh(conn->recv_lock);
 		spin_lock(&session->lock);
 		fail_command(conn, ctask, DID_ABORT << 16);
+		conn->tmf_state = TMF_INITIAL;
 		spin_unlock(&session->lock);
 		write_unlock_bh(conn->recv_lock);
 		iscsi_start_tx(conn);
 		goto success_unlocked;
-	case TMABORT_NOT_FOUND:
-		if (!ctask->sc) {
+	case TMF_TIMEDOUT:
+		spin_unlock_bh(&session->lock);
+		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+		goto failed_unlocked;
+	case TMF_NOT_FOUND:
+		if (!sc->SCp.ptr) {
+			conn->tmf_state = TMF_INITIAL;
 			/* ctask completed before tmf abort response */
 			debug_scsi("sc completed while abort in progress\n");
 			goto success;
 		}
 		/* fall through */
 	default:
-		/* timedout or failed */
-		spin_unlock_bh(&session->lock);
-		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
-		goto failed_unlocked;
+		conn->tmf_state = TMF_INITIAL;
+		goto failed;
 	}
 
 success:
@@ -1276,65 +1503,152 @@ success_unlocked:
 failed:
 	spin_unlock_bh(&session->lock);
 failed_unlocked:
-	debug_scsi("abort failed [sc %lx itt 0x%x]\n", (long)sc, ctask->itt);
+	debug_scsi("abort failed [sc %p itt 0x%x]\n", sc,
+		    ctask ? ctask->itt : 0);
 	mutex_unlock(&session->eh_mutex);
 	return FAILED;
 }
 EXPORT_SYMBOL_GPL(iscsi_eh_abort);
 
+static void iscsi_prep_lun_reset_pdu(struct scsi_cmnd *sc, struct iscsi_tm *hdr)
+{
+	memset(hdr, 0, sizeof(*hdr));
+	hdr->opcode = ISCSI_OP_SCSI_TMFUNC | ISCSI_OP_IMMEDIATE;
+	hdr->flags = ISCSI_TM_FUNC_LOGICAL_UNIT_RESET & ISCSI_FLAG_TM_FUNC_MASK;
+	hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+	int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
+	hdr->rtt = RESERVED_ITT;
+}
+
+int iscsi_eh_device_reset(struct scsi_cmnd *sc)
+{
+	struct Scsi_Host *host = sc->device->host;
+	struct iscsi_session *session = iscsi_hostdata(host->hostdata);
+	struct iscsi_conn *conn;
+	struct iscsi_tm *hdr;
+	int rc = FAILED;
+
+	debug_scsi("LU Reset [sc %p lun %u]\n", sc, sc->device->lun);
+
+	mutex_lock(&session->eh_mutex);
+	spin_lock_bh(&session->lock);
+	/*
+	 * Just check if we are not logged in. We cannot check for
+	 * the phase because the reset could come from a ioctl.
+	 */
+	if (!session->leadconn || session->state != ISCSI_STATE_LOGGED_IN)
+		goto unlock;
+	conn = session->leadconn;
+
+	/* only have one tmf outstanding at a time */
+	if (conn->tmf_state != TMF_INITIAL)
+		goto unlock;
+	conn->tmf_state = TMF_QUEUED;
+
+	hdr = &conn->tmhdr;
+	iscsi_prep_lun_reset_pdu(sc, hdr);
+
+	if (iscsi_exec_task_mgmt_fn(conn, hdr, session->age,
+				    session->lu_reset_timeout)) {
+		rc = FAILED;
+		goto unlock;
+	}
+
+	switch (conn->tmf_state) {
+	case TMF_SUCCESS:
+		break;
+	case TMF_TIMEDOUT:
+		spin_unlock_bh(&session->lock);
+		iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+		goto done;
+	default:
+		conn->tmf_state = TMF_INITIAL;
+		goto unlock;
+	}
+
+	rc = SUCCESS;
+	spin_unlock_bh(&session->lock);
+
+	iscsi_suspend_tx(conn);
+	/* need to grab the recv lock then session lock */
+	write_lock_bh(conn->recv_lock);
+	spin_lock(&session->lock);
+	fail_all_commands(conn, sc->device->lun);
+	conn->tmf_state = TMF_INITIAL;
+	spin_unlock(&session->lock);
+	write_unlock_bh(conn->recv_lock);
+
+	iscsi_start_tx(conn);
+	goto done;
+
+unlock:
+	spin_unlock_bh(&session->lock);
+done:
+	debug_scsi("iscsi_eh_device_reset %s\n",
+		  rc == SUCCESS ? "SUCCESS" : "FAILED");
+	mutex_unlock(&session->eh_mutex);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(iscsi_eh_device_reset);
+
+/*
+ * Pre-allocate a pool of @max items of @item_size. By default, the pool
+ * should be accessed via kfifo_{get,put} on q->queue.
+ * Optionally, the caller can obtain the array of object pointers
+ * by passing in a non-NULL @items pointer
+ */
 int
-iscsi_pool_init(struct iscsi_queue *q, int max, void ***items, int item_size)
+iscsi_pool_init(struct iscsi_pool *q, int max, void ***items, int item_size)
 {
-	int i;
+	int i, num_arrays = 1;
 
-	*items = kmalloc(max * sizeof(void*), GFP_KERNEL);
-	if (*items == NULL)
-		return -ENOMEM;
+	memset(q, 0, sizeof(*q));
 
 	q->max = max;
-	q->pool = kmalloc(max * sizeof(void*), GFP_KERNEL);
-	if (q->pool == NULL) {
-		kfree(*items);
-		return -ENOMEM;
-	}
+
+	/* If the user passed an items pointer, he wants a copy of
+	 * the array. */
+	if (items)
+		num_arrays++;
+	q->pool = kzalloc(num_arrays * max * sizeof(void*), GFP_KERNEL);
+	if (q->pool == NULL)
+		goto enomem;
 
 	q->queue = kfifo_init((void*)q->pool, max * sizeof(void*),
 			      GFP_KERNEL, NULL);
-	if (q->queue == ERR_PTR(-ENOMEM)) {
-		kfree(q->pool);
-		kfree(*items);
-		return -ENOMEM;
-	}
+	if (q->queue == ERR_PTR(-ENOMEM))
+		goto enomem;
 
 	for (i = 0; i < max; i++) {
-		q->pool[i] = kmalloc(item_size, GFP_KERNEL);
+		q->pool[i] = kzalloc(item_size, GFP_KERNEL);
 		if (q->pool[i] == NULL) {
-			int j;
-
-			for (j = 0; j < i; j++)
-				kfree(q->pool[j]);
-
-			kfifo_free(q->queue);
-			kfree(q->pool);
-			kfree(*items);
-			return -ENOMEM;
+			q->max = i;
+			goto enomem;
 		}
-		memset(q->pool[i], 0, item_size);
-		(*items)[i] = q->pool[i];
 		__kfifo_put(q->queue, (void*)&q->pool[i], sizeof(void*));
 	}
+
+	if (items) {
+		*items = q->pool + max;
+		memcpy(*items, q->pool, max * sizeof(void *));
+	}
+
 	return 0;
+
+enomem:
+	iscsi_pool_free(q);
+	return -ENOMEM;
 }
 EXPORT_SYMBOL_GPL(iscsi_pool_init);
 
-void iscsi_pool_free(struct iscsi_queue *q, void **items)
+void iscsi_pool_free(struct iscsi_pool *q)
 {
 	int i;
 
 	for (i = 0; i < q->max; i++)
-		kfree(items[i]);
-	kfree(q->pool);
-	kfree(items);
+		kfree(q->pool[i]);
+	if (q->pool)
+		kfree(q->pool);
 }
 EXPORT_SYMBOL_GPL(iscsi_pool_free);
 
@@ -1387,7 +1701,7 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
 		qdepth = ISCSI_DEF_CMD_PER_LUN;
 	}
 
-	if (cmds_max < 2 || (cmds_max & (cmds_max - 1)) ||
+	if (!is_power_of_2(cmds_max) ||
 	    cmds_max >= ISCSI_MGMT_ITT_OFFSET) {
 		if (cmds_max != 0)
 			printk(KERN_ERR "iscsi: invalid can_queue of %d. "
@@ -1411,12 +1725,16 @@ iscsi_session_setup(struct iscsi_transport *iscsit,
 	shost->max_cmd_len = iscsit->max_cmd_len;
 	shost->transportt = scsit;
 	shost->transportt->create_work_queue = 1;
+	shost->transportt->eh_timed_out = iscsi_eh_cmd_timed_out;
 	*hostno = shost->host_no;
 
 	session = iscsi_hostdata(shost->hostdata);
 	memset(session, 0, sizeof(struct iscsi_session));
 	session->host = shost;
 	session->state = ISCSI_STATE_FREE;
+	session->fast_abort = 1;
+	session->lu_reset_timeout = 15;
+	session->abort_timeout = 10;
 	session->mgmtpool_max = ISCSI_MGMT_CMDS_MAX;
 	session->cmds_max = cmds_max;
 	session->queued_cmdsn = session->cmdsn = initial_cmdsn;
@@ -1479,9 +1797,9 @@ module_put:
 cls_session_fail:
 	scsi_remove_host(shost);
 add_host_fail:
-	iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
+	iscsi_pool_free(&session->mgmtpool);
 mgmtpool_alloc_fail:
-	iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
+	iscsi_pool_free(&session->cmdpool);
 cmdpool_alloc_fail:
 	scsi_host_put(shost);
 	return NULL;
@@ -1501,11 +1819,11 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 	struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
 	struct module *owner = cls_session->transport->owner;
 
-	iscsi_unblock_session(cls_session);
+	iscsi_remove_session(cls_session);
 	scsi_remove_host(shost);
 
-	iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
-	iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
+	iscsi_pool_free(&session->mgmtpool);
+	iscsi_pool_free(&session->cmdpool);
 
 	kfree(session->password);
 	kfree(session->password_in);
@@ -1516,7 +1834,7 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 	kfree(session->hwaddress);
 	kfree(session->initiatorname);
 
-	iscsi_destroy_session(cls_session);
+	iscsi_free_session(cls_session);
 	scsi_host_put(shost);
 	module_put(owner);
 }
@@ -1546,17 +1864,17 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 	conn->c_stage = ISCSI_CONN_INITIAL_STAGE;
 	conn->id = conn_idx;
 	conn->exp_statsn = 0;
-	conn->tmabort_state = TMABORT_INITIAL;
+	conn->tmf_state = TMF_INITIAL;
+
+	init_timer(&conn->transport_timer);
+	conn->transport_timer.data = (unsigned long)conn;
+	conn->transport_timer.function = iscsi_check_transport_timeouts;
+
 	INIT_LIST_HEAD(&conn->run_list);
 	INIT_LIST_HEAD(&conn->mgmt_run_list);
+	INIT_LIST_HEAD(&conn->mgmtqueue);
 	INIT_LIST_HEAD(&conn->xmitqueue);
-
-	/* initialize general immediate & non-immediate PDU commands queue */
-	conn->mgmtqueue = kfifo_alloc(session->mgmtpool_max * sizeof(void*),
-			                GFP_KERNEL, NULL);
-	if (conn->mgmtqueue == ERR_PTR(-ENOMEM))
-		goto mgmtqueue_alloc_fail;
-
+	INIT_LIST_HEAD(&conn->requeue);
 	INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
 
 	/* allocate login_mtask used for the login/text sequences */
@@ -1574,7 +1892,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, uint32_t conn_idx)
 		goto login_mtask_data_alloc_fail;
 	conn->login_mtask->data = conn->data = data;
 
-	init_timer(&conn->tmabort_timer);
+	init_timer(&conn->tmf_timer);
 	init_waitqueue_head(&conn->ehwait);
 
 	return cls_conn;
@@ -1583,8 +1901,6 @@ login_mtask_data_alloc_fail:
 	__kfifo_put(session->mgmtpool.queue, (void*)&conn->login_mtask,
 		    sizeof(void*));
 login_mtask_alloc_fail:
-	kfifo_free(conn->mgmtqueue);
-mgmtqueue_alloc_fail:
 	iscsi_destroy_conn(cls_conn);
 	return NULL;
 }
@@ -1603,8 +1919,9 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 	struct iscsi_session *session = conn->session;
 	unsigned long flags;
 
+	del_timer_sync(&conn->transport_timer);
+
 	spin_lock_bh(&session->lock);
-	set_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx);
 	conn->c_stage = ISCSI_CONN_CLEANUP_WAIT;
 	if (session->leadconn == conn) {
 		/*
@@ -1637,7 +1954,7 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 	}
 
 	/* flush queued up work because we free the connection below */
-	scsi_flush_work(session->host);
+	iscsi_suspend_tx(conn);
 
 	spin_lock_bh(&session->lock);
 	kfree(conn->data);
@@ -1648,8 +1965,6 @@ void iscsi_conn_teardown(struct iscsi_cls_conn *cls_conn)
 		session->leadconn = NULL;
 	spin_unlock_bh(&session->lock);
 
-	kfifo_free(conn->mgmtqueue);
-
 	iscsi_destroy_conn(cls_conn);
 }
 EXPORT_SYMBOL_GPL(iscsi_conn_teardown);
@@ -1672,11 +1987,29 @@ int iscsi_conn_start(struct iscsi_cls_conn *cls_conn)
 		return -EINVAL;
 	}
 
+	if (conn->ping_timeout && !conn->recv_timeout) {
+		printk(KERN_ERR "iscsi: invalid recv timeout of zero "
+		      "Using 5 seconds\n.");
+		conn->recv_timeout = 5;
+	}
+
+	if (conn->recv_timeout && !conn->ping_timeout) {
+		printk(KERN_ERR "iscsi: invalid ping timeout of zero "
+		      "Using 5 seconds.\n");
+		conn->ping_timeout = 5;
+	}
+
 	spin_lock_bh(&session->lock);
 	conn->c_stage = ISCSI_CONN_STARTED;
 	session->state = ISCSI_STATE_LOGGED_IN;
 	session->queued_cmdsn = session->cmdsn;
 
+	conn->last_recv = jiffies;
+	conn->last_ping = jiffies;
+	if (conn->recv_timeout && conn->ping_timeout)
+		mod_timer(&conn->transport_timer,
+			  jiffies + (conn->recv_timeout * HZ));
+
 	switch(conn->stop_stage) {
 	case STOP_CONN_RECOVER:
 		/*
@@ -1684,7 +2017,7 @@ int iscsi_conn_start(struct iscsi_cls_conn *cls_conn)
 		 * commands after successful recovery
 		 */
 		conn->stop_stage = 0;
-		conn->tmabort_state = TMABORT_INITIAL;
+		conn->tmf_state = TMF_INITIAL;
 		session->age++;
 		spin_unlock_bh(&session->lock);
 
@@ -1709,55 +2042,27 @@ flush_control_queues(struct iscsi_session *session, struct iscsi_conn *conn)
 	struct iscsi_mgmt_task *mtask, *tmp;
 
 	/* handle pending */
-	while (__kfifo_get(conn->mgmtqueue, (void*)&mtask, sizeof(void*))) {
-		if (mtask == conn->login_mtask)
-			continue;
+	list_for_each_entry_safe(mtask, tmp, &conn->mgmtqueue, running) {
 		debug_scsi("flushing pending mgmt task itt 0x%x\n", mtask->itt);
-		__kfifo_put(session->mgmtpool.queue, (void*)&mtask,
-			    sizeof(void*));
+		iscsi_free_mgmt_task(conn, mtask);
 	}
 
 	/* handle running */
 	list_for_each_entry_safe(mtask, tmp, &conn->mgmt_run_list, running) {
 		debug_scsi("flushing running mgmt task itt 0x%x\n", mtask->itt);
-		list_del(&mtask->running);
-
-		if (mtask == conn->login_mtask)
-			continue;
-		__kfifo_put(session->mgmtpool.queue, (void*)&mtask,
-			   sizeof(void*));
+		iscsi_free_mgmt_task(conn, mtask);
 	}
 
 	conn->mtask = NULL;
 }
 
-/* Fail commands. Mutex and session lock held and recv side suspended */
-static void fail_all_commands(struct iscsi_conn *conn)
-{
-	struct iscsi_cmd_task *ctask, *tmp;
-
-	/* flush pending */
-	list_for_each_entry_safe(ctask, tmp, &conn->xmitqueue, running) {
-		debug_scsi("failing pending sc %p itt 0x%x\n", ctask->sc,
-			   ctask->itt);
-		fail_command(conn, ctask, DID_BUS_BUSY << 16);
-	}
-
-	/* fail all other running */
-	list_for_each_entry_safe(ctask, tmp, &conn->run_list, running) {
-		debug_scsi("failing in progress sc %p itt 0x%x\n",
-			   ctask->sc, ctask->itt);
-		fail_command(conn, ctask, DID_BUS_BUSY << 16);
-	}
-
-	conn->ctask = NULL;
-}
-
 static void iscsi_start_session_recovery(struct iscsi_session *session,
 					 struct iscsi_conn *conn, int flag)
 {
 	int old_stop_stage;
 
+	del_timer_sync(&conn->transport_timer);
+
 	mutex_lock(&session->eh_mutex);
 	spin_lock_bh(&session->lock);
 	if (conn->stop_stage == STOP_CONN_TERM) {
@@ -1818,7 +2123,7 @@ static void iscsi_start_session_recovery(struct iscsi_session *session,
 	 * flush queues.
 	 */
 	spin_lock_bh(&session->lock);
-	fail_all_commands(conn);
+	fail_all_commands(conn, -1);
 	flush_control_queues(session, conn);
 	spin_unlock_bh(&session->lock);
 	mutex_unlock(&session->eh_mutex);
@@ -1869,6 +2174,21 @@ int iscsi_set_param(struct iscsi_cls_conn *cls_conn,
 	uint32_t value;
 
 	switch(param) {
+	case ISCSI_PARAM_FAST_ABORT:
+		sscanf(buf, "%d", &session->fast_abort);
+		break;
+	case ISCSI_PARAM_ABORT_TMO:
+		sscanf(buf, "%d", &session->abort_timeout);
+		break;
+	case ISCSI_PARAM_LU_RESET_TMO:
+		sscanf(buf, "%d", &session->lu_reset_timeout);
+		break;
+	case ISCSI_PARAM_PING_TMO:
+		sscanf(buf, "%d", &conn->ping_timeout);
+		break;
+	case ISCSI_PARAM_RECV_TMO:
+		sscanf(buf, "%d", &conn->recv_timeout);
+		break;
 	case ISCSI_PARAM_MAX_RECV_DLENGTH:
 		sscanf(buf, "%d", &conn->max_recv_dlength);
 		break;
@@ -1983,6 +2303,15 @@ int iscsi_session_get_param(struct iscsi_cls_session *cls_session,
 	int len;
 
 	switch(param) {
+	case ISCSI_PARAM_FAST_ABORT:
+		len = sprintf(buf, "%d\n", session->fast_abort);
+		break;
+	case ISCSI_PARAM_ABORT_TMO:
+		len = sprintf(buf, "%d\n", session->abort_timeout);
+		break;
+	case ISCSI_PARAM_LU_RESET_TMO:
+		len = sprintf(buf, "%d\n", session->lu_reset_timeout);
+		break;
 	case ISCSI_PARAM_INITIAL_R2T_EN:
 		len = sprintf(buf, "%d\n", session->initial_r2t_en);
 		break;
@@ -2040,6 +2369,12 @@ int iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
 	int len;
 
 	switch(param) {
+	case ISCSI_PARAM_PING_TMO:
+		len = sprintf(buf, "%u\n", conn->ping_timeout);
+		break;
+	case ISCSI_PARAM_RECV_TMO:
+		len = sprintf(buf, "%u\n", conn->recv_timeout);
+		break;
 	case ISCSI_PARAM_MAX_RECV_DLENGTH:
 		len = sprintf(buf, "%u\n", conn->max_recv_dlength);
 		break;

drivers/scsi/libsas/Kconfig

@@ -38,6 +38,15 @@ config SCSI_SAS_ATA
 		Builds in ATA support into libsas.  Will necessitate
 		the loading of libata along with libsas.
 
+config SCSI_SAS_HOST_SMP
+	bool "Support for SMP interpretation for SAS hosts"
+	default y
+	depends on SCSI_SAS_LIBSAS
+	help
+		Allows sas hosts to receive SMP frames.  Selecting this
+		option builds an SMP interpreter into libsas.  Say
+		N here if you want to save the few kb this consumes.
+
 config SCSI_SAS_LIBSAS_DEBUG
 	bool "Compile the SAS Domain Transport Attributes in debug mode"
 	default y

drivers/scsi/libsas/Makefile

@@ -33,5 +33,7 @@ libsas-y +=  sas_init.o     \
 		sas_dump.o     \
 		sas_discover.o \
 		sas_expander.o \
-		sas_scsi_host.o
+		sas_scsi_host.o \
+		sas_task.o
 libsas-$(CONFIG_SCSI_SAS_ATA) +=	sas_ata.o
+libsas-$(CONFIG_SCSI_SAS_HOST_SMP) +=	sas_host_smp.o

drivers/scsi/libsas/sas_ata.c

@@ -498,7 +498,7 @@ static int sas_execute_task(struct sas_task *task, void *buffer, int size,
 			goto ex_err;
 		}
 		wait_for_completion(&task->completion);
-		res = -ETASK;
+		res = -ECOMM;
 		if (task->task_state_flags & SAS_TASK_STATE_ABORTED) {
 			int res2;
 			SAS_DPRINTK("task aborted, flags:0x%x\n",

drivers/scsi/libsas/sas_discover.c

@@ -98,7 +98,7 @@ static int sas_get_port_device(struct asd_sas_port *port)
 			dev->dev_type = SATA_PM;
 		else
 			dev->dev_type = SATA_DEV;
-		dev->tproto = SATA_PROTO;
+		dev->tproto = SAS_PROTOCOL_SATA;
 	} else {
 		struct sas_identify_frame *id =
 			(struct sas_identify_frame *) dev->frame_rcvd;

drivers/scsi/libsas/sas_expander.c

@@ -96,7 +96,7 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size,
 		}
 
 		wait_for_completion(&task->completion);
-		res = -ETASK;
+		res = -ECOMM;
 		if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
 			SAS_DPRINTK("smp task timed out or aborted\n");
 			i->dft->lldd_abort_task(task);
@@ -109,6 +109,16 @@ static int smp_execute_task(struct domain_device *dev, void *req, int req_size,
 		    task->task_status.stat == SAM_GOOD) {
 			res = 0;
 			break;
+		} if (task->task_status.resp == SAS_TASK_COMPLETE &&
+		      task->task_status.stat == SAS_DATA_UNDERRUN) {
+			/* no error, but return the number of bytes of
+			 * underrun */
+			res = task->task_status.residual;
+			break;
+		} if (task->task_status.resp == SAS_TASK_COMPLETE &&
+		      task->task_status.stat == SAS_DATA_OVERRUN) {
+			res = -EMSGSIZE;
+			break;
 		} else {
 			SAS_DPRINTK("%s: task to dev %016llx response: 0x%x "
 				    "status 0x%x\n", __FUNCTION__,
@@ -656,9 +666,9 @@ static struct domain_device *sas_ex_discover_end_dev(
 	sas_ex_get_linkrate(parent, child, phy);
 
 #ifdef CONFIG_SCSI_SAS_ATA
-	if ((phy->attached_tproto & SAS_PROTO_STP) || phy->attached_sata_dev) {
+	if ((phy->attached_tproto & SAS_PROTOCOL_STP) || phy->attached_sata_dev) {
 		child->dev_type = SATA_DEV;
-		if (phy->attached_tproto & SAS_PROTO_STP)
+		if (phy->attached_tproto & SAS_PROTOCOL_STP)
 			child->tproto = phy->attached_tproto;
 		if (phy->attached_sata_dev)
 			child->tproto |= SATA_DEV;
@@ -695,7 +705,7 @@ static struct domain_device *sas_ex_discover_end_dev(
 		}
 	} else
 #endif
-	  if (phy->attached_tproto & SAS_PROTO_SSP) {
+	  if (phy->attached_tproto & SAS_PROTOCOL_SSP) {
 		child->dev_type = SAS_END_DEV;
 		rphy = sas_end_device_alloc(phy->port);
 		/* FIXME: error handling */
@@ -1896,11 +1906,9 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 	}
 
 	/* no rphy means no smp target support (ie aic94xx host) */
-	if (!rphy) {
-		printk("%s: can we send a smp request to a host?\n",
-		       __FUNCTION__);
-		return -EINVAL;
-	}
+	if (!rphy)
+		return sas_smp_host_handler(shost, req, rsp);
+
 	type = rphy->identify.device_type;
 
 	if (type != SAS_EDGE_EXPANDER_DEVICE &&
@@ -1926,6 +1934,15 @@ int sas_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 
 	ret = smp_execute_task(dev, bio_data(req->bio), req->data_len,
 			       bio_data(rsp->bio), rsp->data_len);
+	if (ret > 0) {
+		/* positive number is the untransferred residual */
+		rsp->data_len = ret;
+		req->data_len = 0;
+		ret = 0;
+	} else if (ret == 0) {
+		rsp->data_len = 0;
+		req->data_len = 0;
+	}
 
 	return ret;
 }

drivers/scsi/libsas/sas_host_smp.c

@@ -0,0 +1,274 @@
+/*
+ * Serial Attached SCSI (SAS) Expander discovery and configuration
+ *
+ * Copyright (C) 2007 James E.J. Bottomley
+ *		<James.Bottomley@HansenPartnership.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; version 2 only.
+ */
+#include <linux/scatterlist.h>
+#include <linux/blkdev.h>
+
+#include "sas_internal.h"
+
+#include <scsi/scsi_transport.h>
+#include <scsi/scsi_transport_sas.h>
+#include "../scsi_sas_internal.h"
+
+static void sas_host_smp_discover(struct sas_ha_struct *sas_ha, u8 *resp_data,
+				  u8 phy_id)
+{
+	struct sas_phy *phy;
+	struct sas_rphy *rphy;
+
+	if (phy_id >= sas_ha->num_phys) {
+		resp_data[2] = SMP_RESP_NO_PHY;
+		return;
+	}
+	resp_data[2] = SMP_RESP_FUNC_ACC;
+
+	phy = sas_ha->sas_phy[phy_id]->phy;
+	resp_data[9] = phy_id;
+	resp_data[13] = phy->negotiated_linkrate;
+	memcpy(resp_data + 16, sas_ha->sas_addr, SAS_ADDR_SIZE);
+	memcpy(resp_data + 24, sas_ha->sas_phy[phy_id]->attached_sas_addr,
+	       SAS_ADDR_SIZE);
+	resp_data[40] = (phy->minimum_linkrate << 4) |
+		phy->minimum_linkrate_hw;
+	resp_data[41] = (phy->maximum_linkrate << 4) |
+		phy->maximum_linkrate_hw;
+
+	if (!sas_ha->sas_phy[phy_id]->port ||
+	    !sas_ha->sas_phy[phy_id]->port->port_dev)
+		return;
+
+	rphy = sas_ha->sas_phy[phy_id]->port->port_dev->rphy;
+	resp_data[12] = rphy->identify.device_type << 4;
+	resp_data[14] = rphy->identify.initiator_port_protocols;
+	resp_data[15] = rphy->identify.target_port_protocols;
+}
+
+static void sas_report_phy_sata(struct sas_ha_struct *sas_ha, u8 *resp_data,
+				u8 phy_id)
+{
+	struct sas_rphy *rphy;
+	struct dev_to_host_fis *fis;
+	int i;
+
+	if (phy_id >= sas_ha->num_phys) {
+		resp_data[2] = SMP_RESP_NO_PHY;
+		return;
+	}
+
+	resp_data[2] = SMP_RESP_PHY_NO_SATA;
+
+	if (!sas_ha->sas_phy[phy_id]->port)
+		return;
+
+	rphy = sas_ha->sas_phy[phy_id]->port->port_dev->rphy;
+	fis = (struct dev_to_host_fis *)
+		sas_ha->sas_phy[phy_id]->port->port_dev->frame_rcvd;
+	if (rphy->identify.target_port_protocols != SAS_PROTOCOL_SATA)
+		return;
+
+	resp_data[2] = SMP_RESP_FUNC_ACC;
+	resp_data[9] = phy_id;
+	memcpy(resp_data + 16, sas_ha->sas_phy[phy_id]->attached_sas_addr,
+	       SAS_ADDR_SIZE);
+
+	/* check to see if we have a valid d2h fis */
+	if (fis->fis_type != 0x34)
+		return;
+
+	/* the d2h fis is required by the standard to be in LE format */
+	for (i = 0; i < 20; i += 4) {
+		u8 *dst = resp_data + 24 + i, *src =
+			&sas_ha->sas_phy[phy_id]->port->port_dev->frame_rcvd[i];
+		dst[0] = src[3];
+		dst[1] = src[2];
+		dst[2] = src[1];
+		dst[3] = src[0];
+	}
+}
+
+static void sas_phy_control(struct sas_ha_struct *sas_ha, u8 phy_id,
+			    u8 phy_op, enum sas_linkrate min,
+			    enum sas_linkrate max, u8 *resp_data)
+{
+	struct sas_internal *i =
+		to_sas_internal(sas_ha->core.shost->transportt);
+	struct sas_phy_linkrates rates;
+
+	if (phy_id >= sas_ha->num_phys) {
+		resp_data[2] = SMP_RESP_NO_PHY;
+		return;
+	}
+	switch (phy_op) {
+	case PHY_FUNC_NOP:
+	case PHY_FUNC_LINK_RESET:
+	case PHY_FUNC_HARD_RESET:
+	case PHY_FUNC_DISABLE:
+	case PHY_FUNC_CLEAR_ERROR_LOG:
+	case PHY_FUNC_CLEAR_AFFIL:
+	case PHY_FUNC_TX_SATA_PS_SIGNAL:
+		break;
+
+	default:
+		resp_data[2] = SMP_RESP_PHY_UNK_OP;
+		return;
+	}
+
+	rates.minimum_linkrate = min;
+	rates.maximum_linkrate = max;
+
+	if (i->dft->lldd_control_phy(sas_ha->sas_phy[phy_id], phy_op, &rates))
+		resp_data[2] = SMP_RESP_FUNC_FAILED;
+	else
+		resp_data[2] = SMP_RESP_FUNC_ACC;
+}
+
+int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
+			 struct request *rsp)
+{
+	u8 *req_data = NULL, *resp_data = NULL, *buf;
+	struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(shost);
+	int error = -EINVAL, resp_data_len = rsp->data_len;
+
+	/* eight is the minimum size for request and response frames */
+	if (req->data_len < 8 || rsp->data_len < 8)
+		goto out;
+
+	if (bio_offset(req->bio) + req->data_len > PAGE_SIZE ||
+	    bio_offset(rsp->bio) + rsp->data_len > PAGE_SIZE) {
+		shost_printk(KERN_ERR, shost,
+			"SMP request/response frame crosses page boundary");
+		goto out;
+	}
+
+	req_data = kzalloc(req->data_len, GFP_KERNEL);
+
+	/* make sure frame can always be built ... we copy
+	 * back only the requested length */
+	resp_data = kzalloc(max(rsp->data_len, 128U), GFP_KERNEL);
+
+	if (!req_data || !resp_data) {
+		error = -ENOMEM;
+		goto out;
+	}
+
+	local_irq_disable();
+	buf = kmap_atomic(bio_page(req->bio), KM_USER0) + bio_offset(req->bio);
+	memcpy(req_data, buf, req->data_len);
+	kunmap_atomic(buf - bio_offset(req->bio), KM_USER0);
+	local_irq_enable();
+
+	if (req_data[0] != SMP_REQUEST)
+		goto out;
+
+	/* always succeeds ... even if we can't process the request
+	 * the result is in the response frame */
+	error = 0;
+
+	/* set up default don't know response */
+	resp_data[0] = SMP_RESPONSE;
+	resp_data[1] = req_data[1];
+	resp_data[2] = SMP_RESP_FUNC_UNK;
+
+	switch (req_data[1]) {
+	case SMP_REPORT_GENERAL:
+		req->data_len -= 8;
+		resp_data_len -= 32;
+		resp_data[2] = SMP_RESP_FUNC_ACC;
+		resp_data[9] = sas_ha->num_phys;
+		break;
+
+	case SMP_REPORT_MANUF_INFO:
+		req->data_len -= 8;
+		resp_data_len -= 64;
+		resp_data[2] = SMP_RESP_FUNC_ACC;
+		memcpy(resp_data + 12, shost->hostt->name,
+		       SAS_EXPANDER_VENDOR_ID_LEN);
+		memcpy(resp_data + 20, "libsas virt phy",
+		       SAS_EXPANDER_PRODUCT_ID_LEN);
+		break;
+
+	case SMP_READ_GPIO_REG:
+		/* FIXME: need GPIO support in the transport class */
+		break;
+
+	case SMP_DISCOVER:
+		req->data_len =- 16;
+		if (req->data_len < 0) {
+			req->data_len = 0;
+			error = -EINVAL;
+			goto out;
+		}
+		resp_data_len -= 56;
+		sas_host_smp_discover(sas_ha, resp_data, req_data[9]);
+		break;
+
+	case SMP_REPORT_PHY_ERR_LOG:
+		/* FIXME: could implement this with additional
+		 * libsas callbacks providing the HW supports it */
+		break;
+
+	case SMP_REPORT_PHY_SATA:
+		req->data_len =- 16;
+		if (req->data_len < 0) {
+			req->data_len = 0;
+			error = -EINVAL;
+			goto out;
+		}
+		resp_data_len -= 60;
+		sas_report_phy_sata(sas_ha, resp_data, req_data[9]);
+		break;
+
+	case SMP_REPORT_ROUTE_INFO:
+		/* Can't implement; hosts have no routes */
+		break;
+
+	case SMP_WRITE_GPIO_REG:
+		/* FIXME: need GPIO support in the transport class */
+		break;
+
+	case SMP_CONF_ROUTE_INFO:
+		/* Can't implement; hosts have no routes */
+		break;
+
+	case SMP_PHY_CONTROL:
+		req->data_len =- 44;
+		if (req->data_len < 0) {
+			req->data_len = 0;
+			error = -EINVAL;
+			goto out;
+		}
+		resp_data_len -= 8;
+		sas_phy_control(sas_ha, req_data[9], req_data[10],
+				req_data[32] >> 4, req_data[33] >> 4,
+				resp_data);
+		break;
+
+	case SMP_PHY_TEST_FUNCTION:
+		/* FIXME: should this be implemented? */
+		break;
+
+	default:
+		/* probably a 2.0 function */
+		break;
+	}
+
+	local_irq_disable();
+	buf = kmap_atomic(bio_page(rsp->bio), KM_USER0) + bio_offset(rsp->bio);
+	memcpy(buf, resp_data, rsp->data_len);
+	flush_kernel_dcache_page(bio_page(rsp->bio));
+	kunmap_atomic(buf - bio_offset(rsp->bio), KM_USER0);
+	local_irq_enable();
+	rsp->data_len = resp_data_len;
+
+ out:
+	kfree(req_data);
+	kfree(resp_data);
+	return error;
+}

drivers/scsi/libsas/sas_internal.h

@@ -45,7 +45,7 @@
 void sas_scsi_recover_host(struct Scsi_Host *shost);
 
 int sas_show_class(enum sas_class class, char *buf);
-int sas_show_proto(enum sas_proto proto, char *buf);
+int sas_show_proto(enum sas_protocol proto, char *buf);
 int sas_show_linkrate(enum sas_linkrate linkrate, char *buf);
 int sas_show_oob_mode(enum sas_oob_mode oob_mode, char *buf);
 
@@ -80,6 +80,20 @@ struct domain_device *sas_find_dev_by_rphy(struct sas_rphy *rphy);
 
 void sas_hae_reset(struct work_struct *work);
 
+#ifdef CONFIG_SCSI_SAS_HOST_SMP
+extern int sas_smp_host_handler(struct Scsi_Host *shost, struct request *req,
+				struct request *rsp);
+#else
+static inline int sas_smp_host_handler(struct Scsi_Host *shost,
+				       struct request *req,
+				       struct request *rsp)
+{
+	shost_printk(KERN_ERR, shost,
+		"Cannot send SMP to a sas host (not enabled in CONFIG)\n");
+	return -EINVAL;
+}
+#endif
+
 static inline void sas_queue_event(int event, spinlock_t *lock,
 				   unsigned long *pending,
 				   struct work_struct *work,

drivers/scsi/libsas/sas_scsi_host.c

@@ -108,7 +108,7 @@ static void sas_scsi_task_done(struct sas_task *task)
 			break;
 		case SAM_CHECK_COND:
 			memcpy(sc->sense_buffer, ts->buf,
-			       max(SCSI_SENSE_BUFFERSIZE, ts->buf_valid_size));
+			       min(SCSI_SENSE_BUFFERSIZE, ts->buf_valid_size));
 			stat = SAM_CHECK_COND;
 			break;
 		default:
@@ -148,7 +148,6 @@ static struct sas_task *sas_create_task(struct scsi_cmnd *cmd,
 	if (!task)
 		return NULL;
 
-	*(u32 *)cmd->sense_buffer = 0;
 	task->uldd_task = cmd;
 	ASSIGN_SAS_TASK(cmd, task);
 
@@ -200,6 +199,10 @@ int sas_queue_up(struct sas_task *task)
  */
 int sas_queuecommand(struct scsi_cmnd *cmd,
 		     void (*scsi_done)(struct scsi_cmnd *))
+	__releases(host->host_lock)
+	__acquires(dev->sata_dev.ap->lock)
+	__releases(dev->sata_dev.ap->lock)
+	__acquires(host->host_lock)
 {
 	int res = 0;
 	struct domain_device *dev = cmd_to_domain_dev(cmd);
@@ -410,7 +413,7 @@ static int sas_recover_I_T(struct domain_device *dev)
 }
 
 /* Find the sas_phy that's attached to this device */
-struct sas_phy *find_local_sas_phy(struct domain_device *dev)
+static struct sas_phy *find_local_sas_phy(struct domain_device *dev)
 {
 	struct domain_device *pdev = dev->parent;
 	struct ex_phy *exphy = NULL;

drivers/scsi/libsas/sas_task.c

@@ -0,0 +1,36 @@
+#include <linux/kernel.h>
+#include <scsi/sas.h>
+#include <scsi/libsas.h>
+
+/* fill task_status_struct based on SSP response frame */
+void sas_ssp_task_response(struct device *dev, struct sas_task *task,
+			   struct ssp_response_iu *iu)
+{
+	struct task_status_struct *tstat = &task->task_status;
+
+	tstat->resp = SAS_TASK_COMPLETE;
+
+	if (iu->datapres == 0)
+		tstat->stat = iu->status;
+	else if (iu->datapres == 1)
+		tstat->stat = iu->resp_data[3];
+	else if (iu->datapres == 2) {
+		tstat->stat = SAM_CHECK_COND;
+		tstat->buf_valid_size =
+			min_t(int, SAS_STATUS_BUF_SIZE,
+			      be32_to_cpu(iu->sense_data_len));
+		memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
+
+		if (iu->status != SAM_CHECK_COND)
+			dev_printk(KERN_WARNING, dev,
+				   "dev %llx sent sense data, but "
+				   "stat(%x) is not CHECK CONDITION\n",
+				   SAS_ADDR(task->dev->sas_addr),
+				   iu->status);
+	}
+	else
+		/* when datapres contains corrupt/unknown value... */
+		tstat->stat = SAM_CHECK_COND;
+}
+EXPORT_SYMBOL_GPL(sas_ssp_task_response);
+

drivers/scsi/libsrp.c

@@ -192,18 +192,18 @@ static int srp_direct_data(struct scsi_cmnd *sc, struct srp_direct_buf *md,
 
 	if (dma_map) {
 		iue = (struct iu_entry *) sc->SCp.ptr;
-		sg = sc->request_buffer;
+		sg = scsi_sglist(sc);
 
-		dprintk("%p %u %u %d\n", iue, sc->request_bufflen,
-			md->len, sc->use_sg);
+		dprintk("%p %u %u %d\n", iue, scsi_bufflen(sc),
+			md->len, scsi_sg_count(sc));
 
-		nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg,
+		nsg = dma_map_sg(iue->target->dev, sg, scsi_sg_count(sc),
 				 DMA_BIDIRECTIONAL);
 		if (!nsg) {
-			printk("fail to map %p %d\n", iue, sc->use_sg);
+			printk("fail to map %p %d\n", iue, scsi_sg_count(sc));
 			return 0;
 		}
-		len = min(sc->request_bufflen, md->len);
+		len = min(scsi_bufflen(sc), md->len);
 	} else
 		len = md->len;
 
@@ -229,10 +229,10 @@ static int srp_indirect_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
 
 	if (dma_map || ext_desc) {
 		iue = (struct iu_entry *) sc->SCp.ptr;
-		sg = sc->request_buffer;
+		sg = scsi_sglist(sc);
 
 		dprintk("%p %u %u %d %d\n",
-			iue, sc->request_bufflen, id->len,
+			iue, scsi_bufflen(sc), id->len,
 			cmd->data_in_desc_cnt, cmd->data_out_desc_cnt);
 	}
 
@@ -268,13 +268,14 @@ static int srp_indirect_data(struct scsi_cmnd *sc, struct srp_cmd *cmd,
 
 rdma:
 	if (dma_map) {
-		nsg = dma_map_sg(iue->target->dev, sg, sc->use_sg, DMA_BIDIRECTIONAL);
+		nsg = dma_map_sg(iue->target->dev, sg, scsi_sg_count(sc),
+				 DMA_BIDIRECTIONAL);
 		if (!nsg) {
-			eprintk("fail to map %p %d\n", iue, sc->use_sg);
+			eprintk("fail to map %p %d\n", iue, scsi_sg_count(sc));
 			err = -EIO;
 			goto free_mem;
 		}
-		len = min(sc->request_bufflen, id->len);
+		len = min(scsi_bufflen(sc), id->len);
 	} else
 		len = id->len;