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

Reviewed by: ken

Sigh. There are actually two ioctls ranges that need to be watched on the
linux side. This will all be over soon...

Restrict the range of linux ioctls we will accept.

Doh! Fix a comma that disappeared along the way.

Pointy-hat by: peter

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

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

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Adding missing () in a KASSERT format string.

Submitted by: brandt@fokus.gmd.de

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 throu

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.

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Once again throw out the calculation of si_iosize_max and set it to 64K.
Although it can go higher, it is not safe to so do on arrays with many
members. Compromise by adding a tunable, "hw.aac.iosiz

Once again throw out the calculation of si_iosize_max and set it to 64K.
Although it can go higher, it is not safe to so do on arrays with many
members. Compromise by adding a tunable, "hw.aac.iosize_max" that can be
set at boottime. Also document in the aac(4) manpage.

MFC after: 4 weeks

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Bugfixes. Close a race and logic bug in the timeout handling, don't call the
interrupt handler from the upper half, etc. This fixes some serious stability
problems that we were seeing on our produc

Bugfixes. Close a race and logic bug in the timeout handling, don't call the
interrupt handler from the upper half, etc. This fixes some serious stability
problems that we were seeing on our production server. These patches have
been tested for almost 6 months and are a highly recommended MFC candidate.

Reviewed by: gibbs, merry, msmith
MFC after: 4 days

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Fix a couple of copyright issues and an 80 column nit that I missed before

Reformat for 80 columns. Sorry, but I had to do it.

Add /dev/hpn? as an alias to /dev/aac? so that the HP version of the CLI
utility will work, and document it in the manpage.

MFC after: 3 days

Send the remains (such as I have located) of "block major numbers" to
the bit-bucket.

Create /dev/afaN as a symlink to /dev/aacN. This allows the CLI tools from
Dell and HP to run.

Reviewed by: msmith

This is an MFC candidate.

Add the AAC_DEBUG option to enable debugging in the aac driver.

Correct a race condition in the interrupt handler where the
controller may queue a fib to a response queue

This is an MFC candidate.

Add the AAC_DEBUG option to enable debugging in the aac driver.

Correct a race condition in the interrupt handler where the
controller may queue a fib to a response queue after the driver
has serviced the queue but before the interrupt is cleared.
This could leave a completed fib stranded in the response queue
unless another I/O completed and generated another interrupt.

Reviewed by: msmith

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Kill a warning by marking an unused function with __unused.

Remove a mismatched splbio() in aac_start (the called functions each protect
themselves correctly).

Submitted by: ps

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

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.

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Disable calling timeout() when doing bio. It was causing more prolems than
solving. This will be fixed for real soon.

Further use of M_ZERO.

Submitted by: josh@zipperup.org
Submitted by: Robert Drehmel <robd@gmx.net>
Approved by: msmith

Convert all users of fldoff() to offsetof(). fldoff() is bad
because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.

Define __offsetof() in <machine/ansi.h>

Defin

Convert all users of fldoff() to offsetof(). fldoff() is bad
because it only takes a struct tag which makes it impossible to
use unions, typedefs etc.

Define __offsetof() in <machine/ansi.h>

Define offsetof() in terms of __offsetof() in <stddef.h> and <sys/types.h>

Remove myriad of local offsetof() definitions.

Remove includes of <stddef.h> in kernel code.

NB: Kernelcode should *never* include from /usr/include !

Make <sys/queue.h> include <machine/ansi.h> to avoid polluting the API.

Deprecate <struct.h> with a warning. The warning turns into an error on
01-12-2000 and the file gets removed entirely on 01-01-2001.

Paritials reviews by: various.
Significant brucifications by: bde

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First attempt at timeouts for bio commands sent to the controller. No retry is
attempted right now; the failure is merely passed up. This may help with the
mysterious lockups seen by some with Pabl

First attempt at timeouts for bio commands sent to the controller. No retry is
attempted right now; the failure is merely passed up. This may help with the
mysterious lockups seen by some with Pablano controllers.

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Remove unneeded #include <machine/clock.h>

Fix compiling with AAC_DEBUG.

Include <sys/proc.h> so that we can dereference something in the proc
structure. Looks like someone removed a nested include somewhere else.

Submitted by: gallatin, dg