was branched.

MFC r341755,r342354,r342355,r342386,r342387,r342388,r342526,r342528,
r342530,r342531,r342533,r342534,r342535,r342536,r342659,r345479,
r345485,r345573,r347237,r349849,r349909:

  r341755:
    Copy and clear the reply descriptor atomically.  This prevents concurrency
    in the interrupt handlers (usually due to timeout/error recovery) from
    seeing and processing the same descriptor twice.
  r342354:
    mps(4), mpr(4): Fix lifetime of command buffer for mp?sas_get_sata_identify
  r342355:
    mps(4), mpr(4): remove SATA ID command cancellation hack
  r342386:
    First step in refactoring and fixing the error recovery and task management
    code in the mpr and mps drivers.  Eliminate duplicated code and fix some
    comments.
  r342387:
    Commands for user-initated device resets should come from the high-priority
    allocator.  Prior to this change, they would leak from the normal
    allocator.
  r342388:
    Further refactoring for task management commands.  Also fix a related typo
    from the previous commit.
  r342526:
    Update MPI header files version to 2.00.52 from 2.00.48
  r342528:
    Copy back the Sense data at proper location expected by the application
  r342530:
    Added support for NVMe Task Management
  r342531:
    Add Sea,Aero adapter support
  r342533:
    Enable atomic type descriptor support only for Sea & Aero cards
  r342534:
    On Aero/Sea A0 cards retry MPT Fusion registers reads for max three times
  r342535:
    Update copyright information
  r342536:
    Update mpr driver version to v23.00.00.00-fbsd
  r342659:
    Fix whitespace from r342528
  r345479:
    r329522 created problemss with commands that enter the TIMEDOUT state but
    are successfully returned by the card (usually due to an abort being issued
    as part of timeout recovery). Remove what amounts to an insufficient
    KASSERT, and don't overwrite the state value. State should probably be
    re-designed, and that will be done with a future commit.
  r345485:
    Add event table decoding for SAS Broadcast Primitive events.
  r345573:
    Add missing break statements.  Coverity CID 1400446.
  r347237:
    Add missing newline to debug printf.
  r349849:
    Fix bugs in recovery path and improve cm tracking
  r349909:
    More fully implement the state machine.

Sponsored by: Netflix, Inc

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Sponsored by:	Netflix

the informational print functions.  Collapse the debug API a bit to be
more generic and not require as much code duplication.  While here, fix
a bug in MPS that was already fixed in MPR.

All of the printing from the tables file now has wrappers so that the
handling is cleaner and it's possible to print something out (say, during
development) without having to fight the global debug flags. This re-org
will also make it easier to have the tables be compiled out at build time
if desired.

Other than fixing some minor bugs, there are no user-visible changes from
this change

Sponsored by:	Netflix, Inc.
Differential Revision:	D9238

Sponsored by:	Netflix

Obtained from:	Netflix
MFC after:	3 days

 - remove special handling of zero length transfers in mpi_pre_fw_upload();
 - add missing MPS_CM_FLAGS_DATAIN flag in mpi_pre_fw_upload();
 - move mps_user_setup_request() call into proper place;
 - increase user command timeout from 30 to 60 seconds;
 - avoid NULL dereference panic in case of firmware crash.
Set max DMA segment size to 24bit, as MPI SGE supports it.
Use mps_add_dmaseg() to add empty SGE instead of custom code.
Tune endianness safety.

Reviewed by:	Desai, Kashyap <Kashyap.Desai@lsi.com>
Sponsored by:	iXsystems, Inc.

This involves significant changes to the mps(4) driver, but is not a
complete rewrite.

Some of the changes in this version of the driver:
 - Integrated RAID (IR) support.
 - Support for WarpDrive controllers.
 - Support for SCSI protection information (EEDP).
 - Support for TLR (Transport Level Retries), needed for tape drives.
 - Improved error recovery code.
 - ioctl interface compatible with LSI utilities.

mps.4:		Update the mps(4) driver man page somewhat for the driver
		changes.  The list of supported hardware still needs to be
		updated to reflect the full list of supported cards.

conf/files:	Add the new driver files.

mps/mpi/*:	Updated version of the MPI header files, with a BSD style
		copyright.

mps/*:		See above for a description of the new driver features.

modules/mps/Makefile:
		Add the new mps(4) driver files.

Submitted by:	Kashyap Desai <Kashyap.Desai@lsi.com>
Reviewed by:	ken
MFC after:	1 week

Bring in a driver for the LSI Logic MPT2 6Gb SAS controllers.

This driver supports basic I/O, and works with SAS and SATA drives and
expanders.

Basic error recovery works (i.e. timeouts and aborts) as well.

Integrated RAID isn't supported yet, and there are some known bugs.

So this isn't ready for production use, but is certainly ready for
testing and additional development.  For the moment, new commits to this
driver should go into the FreeBSD Perforce repository first
(//depot/projects/mps/...) and then get merged into -current once
they've been vetted.

This has only been added to the amd64 GENERIC, since that is the only
architecture I have tested this driver with.

Submitted by:	scottl
Discussed with:	imp, gibbs, will
Sponsored by:	Yahoo, Spectra Logic Corporation