Revert r330897:

This was intended to be a non-functional change. It wasn't. The commit
message was thus wrong. In addition it broke arm, and merged crypto
related code.

Revert with prejudice.

This revert skips files touched in r316370 since that commit was since
MFCed. This revert also skips files that require $FreeBSD$ property
changes.

Thank you to those who helped me get out of this mess including but not
limited to gonzo, kevans, rgrimes.

Requested by: gjb (re)

Partial merge of the SPDX changes

These changes are incomplete but are making it difficult
to determine what other changes can/should be merged.

No objections from: pfg

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

sys/dev: minor spelling fixes.

Most affect comments, very few have user-visible effects.

Fix a nasty typo. Change:
if (foo);
bar();
to:
if (foo)
bar();
Really, really nasty bug and a very nice catch of mine.

Unfortunately, I'll not become a hero of the day, because the code is
commented out.

Major update to xe driver:

- Make multicast work
- Fix (some of) the watchdog timeouts after card reset
- Add support for CE2, CEM28 and CEM33 cards
- General code cleanup

Any card that worked previously should still work, as well as a lot that
didn't.

The driver is not yet style(9) compliant; those changes are forthcoming,
once the functional changes are done.

PR: kern/50644
Reviewed by: imp
Approved by: imp

Move xe driver from dev/pccard to dev/xe. Convert driver to newbus.
Driver is not functional yet, but does compile. Tests with xe cards
indicates that it doesn't panic the machine when they are present, but
fail to probe. Interface help in the pcic/pccard layers are needed to
complete this driver.

Restore vendor $Id$ now that it won't be clobbered.

$Id$ -> $FreeBSD$

Fix conflicts.

Virgin import of Xircom PCCARD driver v1.20 (1999/06/13):

* Conformance with Dingo specification. This includes:
Collision/error statistics gathering.
Multicast address filtering, eg. the hash filter.
Initialisation and interrupt handling sequences.
Note that I've started on some of this already in v1.20.

* The probe routine needs some more work, to identify oddities such as the
REM10.

* There are still problems with the autonegotiation code; specifically, it
won't autonegotiate with some 10/100 hubs. This might simply be the hardware
not getting along, in which case there's nothing we can do, but it's still
worth investigating

* CEM28/CEM33 support. Should be able to integrate this directly from the
Linux code.

* Performance enhancements:
Full-duplex on 10Mbit networks.
Virtual shared-memory mode.
Early send and receive modes.

Developed by: Scott Mitchell <scott@uk.freebsd.org>
Obtained from: http://www.freebsd-uk.eu.org/~scott/xe_drv/

Virgin import of Xircom PCCARD driver v1.14

This driver is mostly based on the `xirc2ps' driver for Linux by Werner
Koch. Werner has even allowed his code to be distributed under a BSD licence,
making our life considerably easier -- thanks Werner!

This driver supports:
* Intel EtherExpress(TM) PRO/100 PCCARD (16-bit version)
* Xircom CreditCard CE2 / CEM28 / CEM33 / CE3 / CEM56 Ethernet adapters.
* Toshiba Advanced Network 10/100 PCCARD
* Certain Compaq Netelligent 10/100 branded cards

v1.14 has major changes to media selection code, and bugfixes in the
probe routine.

Developed by: Scott Mitchell <scott@uk.freebsd.org>
Obtained from: http://www.freebsd-uk.eu.org/~scott/xe_drv/

Virgin import of Xircom PCCARD driver v1.13