Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

Merge the projects/release-pkg branch to head.

This allows packaging the base system with pkg(8), including
but not limited to providing the ability to provide upstream
binary update possibilities for non-tier-1 architectures.

This merge is a requirement of the 11.0-RELEASE, and as such,
thank you to everyone that has tested the project branch.

Documentation in build(7) etc. is still somewhat sparse, but
updates to those parts will follow.

Sponsored by: The FreeBSD Foundation

Don't leak rsector/sector in mp_label(..)

Use calloc instead of malloc + memset(.., 0, ..) when allocating sector

Differential Revision: https://reviews.freebsd.org/D4450
MFC after: 1 week
Reported by: cppcheck
Reviewed by: mav
Sponsored by: EMC / Isilon Storage Division

Fix contraction spotted by igor(1) and remove 2 .Ed spotted by mandoc(1).
Also, don't capitalize "module" and remove a redundant phrase introduced
in my previous commit.

Differential Revision: D3112
Reviewed by: wblock
Sponsored by: gandi.net

Describe how to load gmultipath at boot time.

Differential Revision: D3112
Reviewed by: allanjude, bapt
Sponsored by: gandi.net

Add META_MODE support.

Off by default, build behaves normally.
WITH_META_MODE we get auto objdir creation, the ability to
start build from anywhere in the tree.

Still need to add real targets under targets/ to build packages.

Differential Revision: D2796
Reviewed by: brooks imp

Add a missing word, should have been in r284290.

Submitted by: Fabian Keil

Improve grammar.

PR: 200673
Submitted by: Fabian Keil
Obtained from: ElectroBSD

use .Mt to mark up email addresses consistently (part1)

PR: 191174
Submitted by: Franco Fichtner <franco@lastsummer.de>

New command "gmultipath prefer" to force selection of a specified
provider in an Active/Passive configuration.

Reviewed by: mav
MFC after: 4 weeks

Some improvements to GEOM MULTIPATH:
- Implement "configure" command to allow switching operation mode of
running device on-fly without destroying and recreation.
- Implement Active/Read mode as hybrid of Active/Active and Active/Passive.
In this mode all paths not marked FAIL may handle reads same time,
but unlike Active/Active only one path handles write requests at any
point in time. It allows to closer follow original write request order
if above layers need it for data consistency (not waiting for requisite
write completion before sending dependent write).
- Hide duplicate messages about device status change.
- Remove periodic thread wake up with 10Hz rate.

MFC after: 2 weeks
Sponsored by: iXsystems, Inc.

Remove superfluous paragraph macro.

Fix build on some archs after r227464.

Fix buildworld breakage due after r227464.

Pointy hat to: mav

Major GEOM MULTIPATH class rewrite:
- Improved locking and destruction process to fix crashes.
- Improved "automatic" configuration method to make it consistent and safe
by reading metadata back from all specified paths after writing to one.
- Added provider size check to reduce chance of ordering conflict with
other GEOM classes.
- Added "manual" configuration method without using on-disk metadata.
- Added "add" and "remove" commands to allow manage paths manually.
- Failed paths are no longer dropped from geom, but only marked as FAIL
and excluded from I/O operations.
- Automatically restore failed paths when all others paths are marked
as failed, for example, because of device-caused (not transport) errors.
- Added "fail" and "restore" commands to manually control FAIL flag.
- geom is now destroyed on last path disconnection.
- Added optional Active/Active mode support. Unlike Active/Passive
mode, load evenly distributed between all working paths. If supported by
the device, it allows to significantly improve performance, utilizing
bandwidth of all paths. It is controlled by -A option during creation.
Disabled by default now.
- Improved `status` and `list` commands output.

Sponsored by: iXsystems, inc.
MFC after: 1 month

Rename the generic "CLASS" to the more specific "GEOM_CLASS".
While I'm here remove redundancy and inconsistencies.

Obtained from: Juniper Networks

- Remove gc_argname field. It was introduced for gpart(8), but if I
understand everything correctly, we don't really need it.
- Provide default numeric value as strings. This allows to simplify
a lot of code.
- Bump version number.

Avoid a memory leak.

Submitted by: Dmitry Luhtionov via Alexander Motin
MFC after: 1 week

Fix the clear function which has been broken for a bit.

MFC after: 1 week

Change how multipath labels are created and managed. This makes it easier
to support various storage boxes which really aren't active-active.

We only write the label on the *first* provider. For all other providers
we just "add" the disk. This also allows for an "add" verb.

A usage implication is that you should specificy the currently active
storage path as the first provider.

Note that this does not add RDAC-like functionality, but better allows for
autovolumefailover configurations (additional checkins elsewhere will support
this).

Sponsored by: Panasas
MFC after: 1 month

Add 'rotate' and 'getactive' verbs to provide some control and information
about what the currently active path is.

Sponsored by: Panasas
MFC after: 1 month

Add the long missing "destroy" option.

MFC after: 2 weeks

- Use an uppercase provider name in the example, to make the name change
after labeling the provider more obvious. (1)
- Correct nomenclature usage

PR: 121487 (1)
Submitted by: Anatoly Borodin <anatoly.borodin@gmail.com>
MFC after: 3 days

Fix typos.

PR: 121486
Submitted by: Anatoly Borodin <anatoly.borodin@gmail.com>
MFC after: 3 days

Add gpart(8).

In order to support gpart(8), geom(8) needs to support a named
argument. Also, optional string parameters are a requirement.
Both have been added to the infrastructure. The former required
all existing classes to be adjusted.

Fix mdoc warnings.

Call the multipath device with its real name.

First cleanup pass: new sentence -> new line, typos fixed, some markup
errors fixed.

Add a man page.

First cut at GEOM based multipath. This is an active/passive{/passive...}
arrangement that has no intrinsic internal knowledge of whether devices
it is given are truly multipath devices. As such, this is a simplistic
approach, but still a useful one.

The basic approach is to (at present- this will change soon) use camcontrol
to find likely identical devices and and label the trailing sector of the
first one. This label contains both a full UUID and a name. The name is
what is presented in /dev/multipath, but the UUID is used as a true
distinguishor at g_taste time, thus making sure we don't have chaos
on a shared SAN where everyone names their data multipath as "Fred".

The first of N identical devices (and N *may* be 1!) becomes the active
path until a BIO request is failed with EIO or ENXIO. When this occurs,
the active disk is ripped away and the next in a list is picked to
(retry and) continue with.

During g_taste events new disks that meet the match criteria for existing
multipath geoms get added to the tail end of the list.

Thus, this active/passive setup actually does work for devices which
go away and come back, as do (now) mpt(4) and isp(4) SAN based disks.

There is still a lot to do to improve this- like about 5 of the 12
recommendations I've received about it, but it's been functional enough
for a while that it deserves a broader test base.

Reviewed by: pjd
Sponsored by: IronPort Systems
MFC: 2 months