MFC r267667:
use .Mt to mark up email addresses consistently (part1)

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

MFC r289110:

Make geom_nop(4) collect statistics on all types of BIOs, not just
reads and writes.

PR: kern/198405
Submitted by: Matthew D. Fuller <fullermd at over-yonder dot net>
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D3679

MFC r287827:

Add a way to specify stripesize and stripeoffset to gnop(8). This makes
it possible to "simulate" 4K media, to eg test alignment handling.

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

update information about debugging sysctl...

MFC after: 1 week

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.

Fix the example, -w is the right switch for write failure probability.

PR: 136219
Submitted by: Kouki Hashimoto <hsmtkk@gmail.com>
Patch by: gavin
MFC after: 3 days

Minor language cleanup.

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.

MFp4: G_TYPE_BOOL sounds much better than G_TYPE_NONE.

Changes: 98722

Markup fixes.

- Split failure probability configuration into read failure probability and
write failure probability.
- Allow to specify an error number to return of failure.

MFC after: 3 days

Remove trailing spaces.

Teach NOP GEOM class how to gather the following statistics:
- number of read I/O requests,
- number of write I/O requests,
- number of read bytes,
- number of written bytes.
Add 'reset' subcommand for resetting statistics.

Define subcommands' usage inside g_command structure.

MFC after: 1 week

Instead of documenting every standard subcommand's argument everywhere,
just leave reference to geom(8).

MFC after: 1 week

- Document 'status' subcommand.
- Update copyrights.

MFC after: 1 week

Sort sections.

Added the EXIT STATUS section where appropriate.

Fix arguments syntax.

Manual pages fixes by: ru
MFC after: 3 days

Grammatical and spelling improvements.

Reviewed by: pjd

- Add '-S' option, which allow to specify sector size for transparent
provider.
- Bump version number.

This allows for a quite interesting trick. One can setup a stripe with
stripe size of 512 bytes and create transparent provider on top of it
with sector size equal to <ndisks> * 512. The result will be something
like RAID3 without parity disk (every access will touch all disks).

Fix typo.

MFp4: Add two options for gnop(8)'s 'create' command:
-o offset - specifies where to start on the original provider
-s size - specifies size of the transparent provider

Document sysctl variables.

Based on: simon's patch

Slight markup and grammar fixes.

Fix copy&paste bug.

Fix typo.

- Add a cross-reference to geom(8).
- Add missing 'a'.

Actually we are also able to list only choosen providers.

Be more precise.

Add manual pages for gconcat(8), gstripe(8) and gnop(8) utilities.

Supported by: Wheel - Open Technologies - http://www.wheel.pl

- Change command name from 'config' to 'configure'.
- Bump version number.

Various style.Makefile(5) improvements.

Inspired by: ru

Introduce geom(8)-specific shared libraries for CONCAT, STRIPE and NOP
GEOM classes. CONCAT should be 100% compatible with existing gconcat(8)
utility, which is going to be removed.

Supported by: Wheel - Open Technologies - http://www.wheel.pl