Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

MFC: r261500

Add a license (1) and do some cleanup.

Approved by: Stefan Bethke (original author, by private mail) (1)

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

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

Improve grammar and readability.

Reviewed by: sbruno, loos
Approved by: re (gjb)

Typo in strtol(3).

Noticed by: bde

mdoc: new sentence, new line.

Add vlan configuration support to etherswitchcfg.

This adds the support to the config keyword (vlan operation mode), ports
flags, prints the vlan mode and vlan capabilities. It also adds some basic
information to usage() and support the keyword 'help' as a shortcut to
usage(). The manual page is also updated with the new options.

Submitted by: Luiz Otavio O Souza <loos.br@gmail.com>
Reviewed by: ray

Convert over the etherswitch framework to use VLAN IDs per port, rather
than VLAN groups.

Some chips (eg this rtl8366rb) has a VLAN group per port - you first
define a set of VLANs in a vlan group, then you assign a VLAN group
to a port.

Other chips (eg the AR8xxx switch chips) have a VLAN ID array per
port - there's no group per se, just a list of vlans that can be
configured.

So for now, the switch API will use the latter and rely on drivers
doing the heavy lifting if one wishes to use the VLAN group method.
Maybe later on both can be supported.

PR: kern/177878
PR: kern/177873
Submitted by: Luiz Otavio O Souza <loos.br@gmail.com>
Reviewed by: ray

Fixes to man8 groff mandoc style, usage mistakes, or typos.

PR: 168016
Submitted by: Nobuyuki Koganemaru
Approved by: gjb
MFC after: 3 days

Remove end of line whitespace.

Add etherswitchcfg.

Submitted by: Stefan Bethke <stb@lassitu.de>