MFC r286567, r286568, r289426, r289429, r295113, r295286, r299367, r299369,
r308217, r308301, r311958, r312437, r318188, r318427, r318679

r286567:
Remove some unused code.

Obtained from: Netflix, Inx.

r286568:
Remove mps_request_polled(), it's redundant to mps_wait_command()

Obtained from: Netflix, Inc.

r289426:
Remove _FreeBSD_version check for something that was only an issue with
9-CURRENT.

Obtained from: Netlfix, Inc
MFC after: 3 days

r289429:
Revert an extra hunk that crept into the last commit.

Submitted by: emax
Obtained from: Netflix, Inc.
MFC after: 3 days

r295113:
Clean up unused-but-set-variable spotted by gcc-4.9.

Reviewed by: mav, slm
Approved by: rodrigc (mentor)
MFC after: 2 weeks
Sponsored by: gandi.net

r295286:
Add sysctls for dumping out the device mapping tables. I'm finding this
useful for debugging device-target translation bugs.

MFC after: 3 days
Sponsored by: Netflix

r299367:
Remove NULL checks after M_WAITOK allocations from mps(4).

Reviewed by: asomers@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6296

r299369:
Remove NULL checks after M_WAITOK allocations from mpr(4).

Reviewed by: asomers@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D6297

r308217:
Add a fallback to the device mapper logic. We've seen systems in the field
that are apparently misconfigured by the manufacturer and cause the mapping
logic to fail. The fallback allows drive numbers to be assigned based on the
PHY number that they're attached to. Add sysctls and tunables to overrid
this new behavior, but they should be considered only necessary for debugging.

Reviewed by: imp, smh
Obtained from: Netflix
MFC after: 3 days
Sponsored by: D8403

r308301:
Record the LogInfo field when reporting the IOCStatus. Helps in
debugging errors.

Submitted by: slm
Obtained from: Netflix
MFC after: 3 days

r311958:
Print out the number of queues/MSIx vectors.

Sponsored by: Netflix

r312437:
Rework the debug print API. Event printing no longer gets special handling.
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

r318188:
Improve error messages during command timeout for the mpr and mps
drivers.

Sponsored by: Netflix

r318427:
Add tri-mode support (SAS/SATA/PCIe).

This includes NVMe device support and adds support for the following adapters:
SAS 3408
SAS 3416
SAS 3508
SAS 3516
SAS 3616
SAS 3708
SAS 3716

Reviewed by: ken, scottl, asomers, mav
Approved by: ken, scottl, mav
MFC after: 2 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D10095

r318679:
Fix powerpc compiler error.

Approved by: ken

MFC r299263, r299265, r299266, r299267, r299268, r299269, r299270, r299271,
r299272, r299274, r299275

- (r299263) Update MPI headers to version 42.
- (r299265) Several style changes and add copyrights for 2016.
- (r299266) Add support for the Broadcom (Avago/LSI) 9305 16 and 24 port HBA's.
- (r299267) No log bit in IOCStatus and endian-safe changes.

Use MPI2_IOCSTATUS_MASK when checking IOCStatus to mask off the log bit, and
make a few more things endian-safe.

- (r299268) Change logging level for a debug string to use MPR_LOG instead of
MPR_INFO.

- (r299269) Fix possible use of invalid pointer.

It was possible to use an invalid pointer to get the target ID value. To fix
this, initialize a local Target ID variable to an invalid value and change that
variable to a valid value only if the pointer to the Target ID is not NULL.

- (r299270) No need to set the MPRSAS_SHUTDOWN flag because it's never used.
- (r299271) Use callout_reset_sbt() instead of callout_reset() if FreeBSD ver
is >= 1000029

- (r299272) done_ccb pointer can be used if it is NULL.

To prevent this, move check for done_ccb == NULL to before done_ccb is used in
mprsas_stop_unit_done().

- (r299274) Disks can go missing until a reboot is done in some cases.

This is due to the DevHandle not being released, which causes the Firmware to
not allow that disk to be re-added.

- (r299275) Bump version of mpr driver to 13.00.00.00-fbsd

MFC: r283661
- Updated all files with 2015 Avago copyright, and updated LSI's copyright
dates.

- Changed all of the PCI device strings from LSI to Avago Technologies (LSI).

- Added a sysctl variable to control how StartStopUnit behavior works. User can
select to spin down disks based on if disk is SSD or HDD.

- Inquiry data is required to tell if a disk will support SSU at shutdown or
not. Due to the addition of mprssas_async, which gets Advanced Info but not
Inquiry data, the setting of supports_SSU was moved to the
mprsas_scsiio_complete function, which snoops for any Inquiry commands. And,
since disks are shutdown as a target and not a LUN, this process was
simplified by basing it on targets and not LUNs.

- Added a sysctl variable that sets the amount of time to retry after sending a
failed SATA ID command. This helps with some bad disks and large disks that
require a lot of time to spin up. Part of this change was to add a callout to
handle timeouts with the SATA ID command. The callout function is called
mprsas_ata_id_timeout(). (Fixes PR 191348)

- Changed the way resets work by allowing I/O to continue to devices that are
not currently under a reset condition. This uses devq's instead of simq's and
makes use of the MPSSAS_TARGET_INRESET flag. This change also adds a function
called mprsas_prepare_tm().

- Some changes were made to reduce code duplication when getting a SAS address
for a SATA disk.

- Fixed some formatting and whitespace.

- Bump version of mpr driver to 9.255.01.00-fbsd

PR: 191348

MFC: r283661
- Updated all files with 2015 Avago copyright, and updated LSI's copyright
dates.

- Changed all of the PCI device strings from LSI to Avago Technologies (LSI).

- Added a sysctl variable to control how StartStopUnit behavior works. User can
select to spin down disks based on if disk is SSD or HDD.

- Inquiry data is required to tell if a disk will support SSU at shutdown or
not. Due to the addition of mprssas_async, which gets Advanced Info but not
Inquiry data, the setting of supports_SSU was moved to the
mprsas_scsiio_complete function, which snoops for any Inquiry commands. And,
since disks are shutdown as a target and not a LUN, this process was
simplified by basing it on targets and not LUNs.

- Added a sysctl variable that sets the amount of time to retry after sending a
failed SATA ID command. This helps with some bad disks and large disks that
require a lot of time to spin up. Part of this change was to add a callout to
handle timeouts with the SATA ID command. The callout function is called
mprsas_ata_id_timeout(). (Fixes PR 191348)

- Changed the way resets work by allowing I/O to continue to devices that are
not currently under a reset condition. This uses devq's instead of simq's and
makes use of the MPSSAS_TARGET_INRESET flag. This change also adds a function
called mprsas_prepare_tm().

- Some changes were made to reduce code duplication when getting a SAS address
for a SATA disk.

- Fixed some formatting and whitespace.

- Bump version of mpr driver to 9.255.01.00-fbsd

PR: 191348