- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Sync with driver.

MFC after: 2 weeks

mps(4) is endian safe as of r237683.

mdoc: minor Bl improvements.

General mdoc(7) and typo fixes.

PR: 167776
Submitted by: Nobuyuki Koganemaru (kogane!jp.freebsd.org)
MFC after: 3 days

Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

Update the mps(4) man page for the changes in the new LSI-supported driver.

This should have been included in change 230592.

The supported hardware section still needs some updating to reflect
the current reality.

MFC after: 3 days

Reword a sentence in the HARDWARE section a little to make it more suitable
for automatic hardware notes generation.

MFC after: 3 days

mdoc: reorder sections consistently

Turn on serialization of task management commands going down to the
controller, but make it optional.

After a problem report from Andrew Boyer, it looks like the LSI
chip may have issues (the watchdog timer fired) if too many aborts
are sent down to the chip at the same time. We know that task
management commands are serialized, and although the manual doesn't
say it, it may be a good idea to just send one at a time.

But, since I'm not certain that this is necessary, add a tunable
and sysctl variable (hw.mps.%d.allow_multiple_tm_cmds) to control
the driver's behavior.

mps.c: Add support for the sysctl and tunable, and add a
comment about the possible return values to
mps_map_command().

mps_sas.c: Run all task management commands through two new
routines, mpssas_issue_tm_request() and
mpssas_complete_tm_request().

This allows us to optionally serialize task
management commands. Also, change things so that
the response to a task management command always
comes back through the callback. (Before it could
come via the callback or the return value.)

mpsvar.h: Add softc variables for the list of active task
management commands, the number of active commands,
and whether we should allow multiple active task
management commands. Add an active command flag.

mps.4: Describe the new sysctl/loader tunable variable.

Sponsored by: Spectra Logic Corporation

MFp4 (//depot/projects/mps/...)

Fix a typo.

Submitted by: pluknet at gmail dot com

MFp4 (//depot/projects/mps/...)

Add a man page for the mps(4) driver, and reference it in the
mpt(4) driver man page.

Sponsored by: Spectra Logic Corporation