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.

Add locking to the adw(4) driver and mark it MPSAFE.
- Use device_printf() and device_get_nameunit() instead of adw_name().
- Remove use of explicit bus space handles and tags.
- Use pci_enable_busmaster() rather than frobbing the PCI command register
directly.
- Use the softc provided by new-bus rather than allocating a new one.

Tested by: no one

Fix a missing /*-

Start each of the license/copyright comments with /*-, minor shuffle of lines

Remove unneeded <stddef.h> #includes.

Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by: msmith and others

Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by: phk
Reviewed by: phk
Approved by: mdodd

adv_pci.c:
adw_pci.c:
Update comments describing supported chips/cards.

adwcam.c:
adwlib.c:
adwlib.h:
Handle more error return codes from the firmware.

Break out the bus reset code into its own function.

Usa a constant for the bus reset hold delay.

Fix an interrupt race problem in adw_idle_cmd_send by
incorporating the poll loop for command completion.

Approved by: jkh@FreeBSDorg

Add support for the AdvanSys ASC38C0800 Ultra2 chipset. Preliminary
support is also included for the ASC38C1600 Ultra160 chipset, but
as firmware is not yet available for this chip, it is disabled.

Approved by: jkh@FreeBSD.org

$Id$ -> $FreeBSD$

Add support for the ASC3550 AdvanSys SCSI Host Controller (aka 940UW).