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

use .Mt to mark up email addresses consistently (final part)

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

Use our standard section 4 SYNOPSIS.

MFC after: 3 days

Markup fixes.

Fixed the .Os call (missing or wrong).

Mechanically kill hard sentence breaks and double whitespaces.

Spelling fixes.

Add missing word

Fix Xr markup.

Reference the patm(4) man page from here, like the other ATM drivers are
referenced.

Document the PHY chip statistics.

Document the support for the IDT77155 Sonet/SDH PHY.

Cross-reference hatm(4) and fatm(4).

This is a driver for the physical layer chips used in ATM interfaces.
It currently supports the PMC Sierra Lite, Ultra and 622 chips and
the IDT 77105. The driver handles media options and state in a consistent
manner for ATM drivers. The next commit to the midway driver will make
it use utopia.