Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI updates from James Bottomley:
 "This series has a huge amount of churn because it pulls in Mauro's doc
  update changing all our txt files to rst ones.

  Excluding that, we have the usual driver updates (qla2xxx, ufs, lpfc,
  zfcp, ibmvfc, pm80xx, aacraid), a treewide update for scnprintf and
  some other minor updates.

  The major core change is Hannes moving functions out of the aacraid
  driver and into the core"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (223 commits)
  scsi: aic7xxx: aic97xx: Remove FreeBSD-specific code
  scsi: ufs: Do not rely on prefetched data
  scsi: dc395x: remove dc395x_bios_param
  scsi: libiscsi: Fix error count for active session
  scsi: hpsa: correct race condition in offload enabled
  scsi: message: fusion: Replace zero-length array with flexible-array member
  scsi: qedi: Add PCI shutdown handler support
  scsi: qedi: Add MFW error recovery process
  scsi: ufs: Enable block layer runtime PM for well-known logical units
  scsi: ufs-qcom: Override devfreq parameters
  scsi: ufshcd: Let vendor override devfreq parameters
  scsi: ufshcd: Update the set frequency to devfreq
  scsi: ufs: Resume ufs host before accessing ufs device
  scsi: ufs-mediatek: customize the delay for enabling host
  scsi: ufs: make HCE polling more compact to improve initialization latency
  scsi: ufs: allow custom delay prior to host enabling
  scsi: ufs-mediatek: use common delay function
  scsi: ufs: introduce common and flexible delay function
  scsi: ufs: use an enum for host capabilities
  scsi: ufs: fix uninitialized tx_lanes in ufshcd_disable_tx_lcc()
  ...

1 files changed, 92 insertions, 0 deletions

diff --git a/Documentation/scsi/dpti.rst b/Documentation/scsi/dpti.rst
new file mode 100644
index 000000000000..0496919d87d3
--- /dev/null
+++ b/Documentation/scsi/dpti.rst
@@ -0,0 +1,92 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+===================
+Adaptec dpti driver
+===================
+
+Redistribution and use in source form, with or without modification, are
+permitted provided that redistributions of source code must retain the
+above copyright notice, this list of conditions and the following disclaimer.
+
+This software is provided ``as is`` by Adaptec and
+any express or implied warranties, including, but not limited to, the
+implied warranties of merchantability and fitness for a particular purpose,
+are disclaimed. In no event shall Adaptec be
+liable for any direct, indirect, incidental, special, exemplary or
+consequential damages (including, but not limited to, procurement of
+substitute goods or services; loss of use, data, or profits; or business
+interruptions) however caused and on any theory of liability, whether in
+contract, strict liability, or tort (including negligence or otherwise)
+arising in any way out of the use of this driver software, even if advised
+of the possibility of such damage.
+
+This driver supports the Adaptec I2O RAID and DPT SmartRAID V I2O boards.
+
+Credits
+=======
+
+The original linux driver was ported to Linux by Karen White while at
+Dell Computer.  It was ported from Bob Pasteur's (of DPT) original
+non-Linux driver.  Mark Salyzyn and Bob Pasteur consulted on the original
+driver.
+
+2.0 version of the driver by Deanna Bonds and Mark Salyzyn.
+
+History
+=======
+
+The driver was originally ported to linux version 2.0.34
+
+==== ==========================================================================
+V2.0 Rewrite of driver.  Re-architectured based on i2o subsystem.
+     This was the first full GPL version since the last version used
+     i2osig headers which were not GPL.  Developer Testing version.
+V2.1 Internal testing
+V2.2 First released version
+
+V2.3 Changes:
+
+     - Added Raptor Support
+     - Fixed bug causing system to hang under extreme load with
+     - management utilities running (removed GFP_DMA from kmalloc flags)
+
+V2.4 First version ready to be submitted to be embedded in the kernel
+
+     Changes:
+
+     - Implemented suggestions from Alan Cox
+     - Added calculation of resid for sg layer
+     - Better error handling
+     - Added checking underflow conditions
+     - Added DATAPROTECT checking
+     - Changed error return codes
+     - Fixed pointer bug in bus reset routine
+     - Enabled hba reset from ioctls (allows a FW flash to reboot and use
+       the new FW without having to reboot)
+     - Changed proc output
+==== ==========================================================================
+
+TODO
+====
+- Add 64 bit Scatter Gather when compiled on 64 bit architectures
+- Add sparse lun scanning
+- Add code that checks if a device that had been taken offline is
+  now online (at the FW level) when test unit ready or inquiry
+  command from scsi-core
+- Add proc read interface
+- busrescan command
+- rescan command
+- Add code to rescan routine that notifies scsi-core about new devices
+- Add support for C-PCI (hotplug stuff)
+- Add ioctl passthru error recovery
+
+Notes
+=====
+The DPT card optimizes the order of processing commands.  Consequently,
+a command may take up to 6 minutes to complete after it has been sent
+to the board.
+
+The files dpti_ioctl.h dptsig.h osd_defs.h osd_util.h sys_info.h are part of the
+interface files for Adaptec's management routines.  These define the structures used
+in the ioctls.  They are written to be portable.  They are hard to read, but I need
+to use them 'as is' or I can miss changes in the interface.