MFC r330949:

Fix FSACTL_GET_NEXT_ADAPTER_FIB under 32-bit compat.

This includes FSACTL_LNX_GET_NEXT_ADAPTER_FIB.

Reviewed by: cem
Obtained from: CheriBSD
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D14672

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

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

Fix typos - remove duplicate "the".

PR: bin/154928
Submitted by: Eitan Adler <lists at eitanadler.com>
MFC after: 3 days

Add additional featuresState.fBits entries to simplify compiling and
testing Adaptec's vendor driver.

Submitted by: Adaptec, driver 17517

Implement FSACTL_LNX_GET_FEATURES and FSACTL_GET_FEATURES ioctls. RAID
tools (e.g. arcconf) need this to be able to create arrays larger than 2TB.

Submitted by: Adaptec, via driver build 15317

Add ioctls FSACTL_SEND_LARGE_FIB, FSACTL_SEND_RAW_SRB,
FSACTL_LNX_SEND_LARGE_FIB, and FSACTL_LNX_SEND_RAW_SRB, and correct size
checks on FIBs passed in from userspace. Both changes were obtained from
Adaptec's driver build 15317. Adaptec's commandline RAID tool arcconf uses
these ioctls when creating a RAID-10 array (and probably other operations
too).

Complete the repo-copy of aac_ioctl.h from sys/dev/aac/to sys/sys.

Do some small cleanups to comments and remove AACQ_COMPLETE definitions since
the completion queue is long-gone.

Add an #ifdef _KERNEL so that this file can be used from userland.

Add functionality and fix bugs so the driver will work with soon-to-be
released management apps.

1. Implement poll(). This will check for queued aif's so that a
subsequent ioctl call to retrieve the next aif will not block.
2. Don't catch signals when sleeping on a fib sent from userland. This
causes a race and panic due to the pthread context switcher waking
up the tsleep at inopportune times.
3. Fix some whitespace nits.

MFC after: 3 days

Bring the aac driver *much* closer to style(9).

Reviewed by: ken

Mega update to the aac driver.
1. Correctly handle commands initiated by the adapter. These commands
are defered to a kthread responsible for their processing, then are
properly returned to the controller.
2. Add/remove disk devices when notified by the card that a container was
created/deleted/offline.
3. Implement crashdump functionality.
4. Support all ioctls needed for the management CLI to work. The linux
version of this app can be found at the Dell or HP website. A native
version will be forthcoming.

MFC-after: 4.4-RELEASE

Make AAC_COMPAT_LINUX optional once again.

Submitted by: julian

Put the linux compat ioctl interface on death row. Add FreeBSD
definitions of all of the ioctls, plus round out all ioctl definitions to
match what exists for linux. Allow ioctls to be called through either the
native or linux interface, though no apps exist (yet) that can take
advantage of native calling.

Missed this one in my 80-column sweep.

Major bugfix and minor update. This should resolve the current issues
with the driver locking up under load.

- Restructure so that we use a static pool of commands/FIBs, rather than
allocating them in clusters. The cluster allocation just made things
more complicated, and allowed us to waste more memory in peak load
situations.
- Make queueing macros more like my other drivers. This adds queue stats
for free. Add some debugging to take advantage of this.
- Reimplement the periodic timeout scan. Kick the interrupt handler
and the start routine every scan as well, just to be safe. Track busy
commands properly.
- Bring resource cleanup into line with resource allocation. We should
now clean up correctly after a failed probe/unload/etc.
- Try to start new commands when old ones are completed. We weren't doing
this before, which could lead to deadlock when the controller was full.
- Don't try to build a new command if we have found a deferred command.
This could cause us to lose the deferred command.
- Use diskerr() to report I/O errors.
- Don't bail if the AdapterInfo structure is the wrong size. Some variation
seems to be normal. We need to improve our handing of 2.x firmware sets.
- Improve some comments in an attempt to try to make things clearer.
- Restructure to avoid some warnings.

A new driver for PCI:SCSI RAID controllers based on the Adaptec FSA
design. This includes integrated Dell RAID controllers, the Dell
PERC 2/QC and the HP NetRAID-4M.