[SCSI] aacraid: add support for FUA

Back in the beginning of last year we disabled mode page 8 and mode page
3f requests through device quirk bits instead of enhancing the driver to
respond to these

[SCSI] aacraid: add support for FUA

Back in the beginning of last year we disabled mode page 8 and mode page
3f requests through device quirk bits instead of enhancing the driver to
respond to these mode pages because there was no apparent added value.

The Firmware that supports the new communication commands supports the
ability to force a write around of the adapter cache on a command by
command basis. In the attached patch we enable mode page 8 and 3f and
spoof the results as needed in order to *convince* the layers above to
submit writes with the FUA (Force Unit Attention) bit set if the file
system or application requires it, if the Firmware supports the write
through, or instead to submit a SYNCHRONIZE_CACHE if the Firmware does
not. The added value here is for file systems that benefit from this
functionality and for clustering or redundancy scenarios.

Caveats: By convince, we are responding with a minimal short 3 byte
content mode page 8, with only the data the SCSI layer needs and that we
can fill confidently. Applications that require the customarily larger
mode page 8 results may be confused by this(?). The FUA, or the
SYNCHRONIZE_CACHE only affect the cache on the controller. Our firmware
by default ensure that the underlying physical drives of the array have
their cache turned off so normally this is not a problem.

This attached patch is against current scsi-misc-2.6 and was unit tested
on RHEL5. Since this is a feature enhancement, it should not be
considered for any current stabilization efforts.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: apply commit config for reset_devices flag

Under some conditions associated with the unclean transition to kdump,
the aacraid adapters will view the array as foreign and not export i

[SCSI] aacraid: apply commit config for reset_devices flag

Under some conditions associated with the unclean transition to kdump,
the aacraid adapters will view the array as foreign and not export it to
prevent access and data manipulation. The solution is to submit a commit
configuration to export the devices since this is a expected behavior
when transitioning to a kdump kernel.

This patch adds the aacraid.reset_devices flag and when either this or
the global reset_devices flag is set, ensures that a commit config is
issued and extends the startup_timeout if it is set less than 5 minutes.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Correct sa platform support. (Was: [Bug 8469] Bad EIP value on pentium3 SMP kernel-2.6.21.1)

http://bugzilla.kernel.org/show_bug.cgi?id=8469

As discussed in the bugzilla outlined be

[SCSI] aacraid: Correct sa platform support. (Was: [Bug 8469] Bad EIP value on pentium3 SMP kernel-2.6.21.1)

http://bugzilla.kernel.org/show_bug.cgi?id=8469

As discussed in the bugzilla outlined below, we have an sa based
(Mustang) RAID adapter on the system, a Dell PERC2/QC. Affected
controllers are HP NetRAID, Adaptec AAC-364, Dell PERC2/QC or Adaptec
5400S. This problem coincides with the introduction of the adapter_comm
and adapter_deliver platform functions (Message [PATCH 1/4] aacraid:
rework communication support code, January 23 2007, which initially
migrated to 2.6.21)

The panic occurs with an uninitialized adapter_deliver platform function
pointer. The enclosed patch, unmodified as tested by Rainer, solves the
problem.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: fix print of Firmware Build Date and add TSID

The Adapter build date that is to be printed on instantiation was not
displayed as a result of the supplemental adapter information stru

[SCSI] aacraid: fix print of Firmware Build Date and add TSID

The Adapter build date that is to be printed on instantiation was not
displayed as a result of the supplemental adapter information structure
not being in sync with the Firmware; the driver took an early test cycle
version that had a miss-sized padded region at the head and the
structure was not re-checked at the end of qualification. The Build Date
was not a priority and is merely a cosmetic enhancement, and the wrong
location for the start of the structure member would not induce any
side-effect problems. We updated the structure to match the actual
format, and added the TSID (Tech Support Identification) value print,
should it be present, to the adapter instantiation announcements during
driver load.

This later enhancement should improve the relationship between Service
folk & Tech Support if the printed value of the TSID found it's way into
the circular file labeled G...

Neither of these values show in sysfs (yet).

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: remove unused or deprecated firmware constants

Just sweeping the floor clean in one spot. Some of these constants have
never been used in the driver or in the firmware (and thus are

[SCSI] aacraid: remove unused or deprecated firmware constants

Just sweeping the floor clean in one spot. Some of these constants have
never been used in the driver or in the firmware (and thus are
meaningless). Triggered this patch because I discovered one of the
unused constants was actually incorrect and figured it was better to
clean them out than correct and update. There are no side effects at all
regarding this patch, it is purely cosmetic.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: cleanups

- proper prototypes for global code in aacraid.h
- aac_rx_start_adapter() can now become static

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <ak

[SCSI] aacraid: cleanups

- proper prototypes for global code in aacraid.h
- aac_rx_start_adapter() can now become static

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: cleanup and version stamp driver

There is some residual cleanup of the last series of patches and the
need to bump the revision number to draw the line in the sand.

The cmd->SCp.pha

[SCSI] aacraid: cleanup and version stamp driver

There is some residual cleanup of the last series of patches and the
need to bump the revision number to draw the line in the sand.

The cmd->SCp.phase is set in the aac_valid_context routine, then set
again to the same value following it's return. The cmd->scsi_done is set
twice in the aac_queuecommand routine. Free up the scsidev FILO in
aac_probe_container as it is not needed further down the function in any
case. Improve the efficiency of the abort handler kernel print
parameters. Bump revision number of driver to approximate the equivalent
in the Adaptec supplied version.

Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Improved error handling

Received from Mark Salyzyn,

This set of fixes improve error handling stability of the driver. A popular
manifestation of the problems is an NULL pointer refe

[SCSI] aacraid: Improved error handling

Received from Mark Salyzyn,

This set of fixes improve error handling stability of the driver. A popular
manifestation of the problems is an NULL pointer reference in the interrupt
handler when referencing portions of the scsi command context, or in the
scsi_done handling when an offlined device is referenced.

The aacraid driver currently does not get notification of orphaned command
completions due to devices going offline. The driver also fails to handle the
commands that are finished by the error handler, and thus can complete again
later at the hands of the adapter causing situations of completion of an
invalid scsi command context. Test Unit Ready calls abort assuming that the
abort was successful, but are not, and thus when the interrupt from the adapter
occurs, they reference invalid command contexts. We add in a TIMED_OUT flag to
inform the aacraid FIB context that the interrupt service should merely release
the driver resources and not complete the command up. We take advantage of this
with the abort handler as well for select abortable commands. And we detect and
react if a command that can not be aborted is currently still outstanding to
the controller when reissued by the retry mechanism.

Signed-off-by: Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Fix struct element name issue

Received from Mark Salyzyn,

This patch is to resolve a namespace issue that will result from a patch
expected in the future that adds a new interface;

[SCSI] aacraid: Fix struct element name issue

Received from Mark Salyzyn,

This patch is to resolve a namespace issue that will result from a patch
expected in the future that adds a new interface; rationalized as
correcting a long term issue where hw_fib, instead of hw_fib_va, refers
to the virtual address space and hw_fib_pa refers to the physical
address space. A small fragment of this patch also cleans up an unused
variable that was close to the patch fragments.

Signed-off-by: Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: add restart adapter platform function

Received from Mark Salyzyn,

This patch updates the adapter restart function to deal with some
adapters that have specific IOP reset needs. Sinc

[SCSI] aacraid: add restart adapter platform function

Received from Mark Salyzyn,

This patch updates the adapter restart function to deal with some
adapters that have specific IOP reset needs. Since the code for
restarting the adapter was in two places, changed over to utilizing a
platform function in one place.

Signed-off-by: Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: rework packet support code

Received from Mark Salyzyn,

Replace all if/else packet formations with platform function calls. This is in
recognition of the proliferation of read and wr

[SCSI] aacraid: rework packet support code

Received from Mark Salyzyn,

Replace all if/else packet formations with platform function calls. This is in
recognition of the proliferation of read and write packet types, and in the
need to migrate to up-and-coming packets for new products.

Signed-off-by Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Begin adding support for new adapter type

Received from Mark Salyzyn,

Add in the NEMER/ARK physical register mapping, represented in up and coming
products currently under test at A

[SCSI] aacraid: Begin adding support for new adapter type

Received from Mark Salyzyn,

Add in the NEMER/ARK physical register mapping, represented in up and coming
products currently under test at Adaptec.

Signed-off-by Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: rework communication support code

Received from Mark Salyzyn,

Replace all if/else communication transports with a platform function call.
This is in recognition of the need to migra

[SCSI] aacraid: rework communication support code

Received from Mark Salyzyn,

Replace all if/else communication transports with a platform function call.
This is in recognition of the need to migrate to up-and-coming transports.
Currently the Linux driver does not support two available communication
transports provided by our products, these will be added in future patches, and
will expand the platform function set.

Signed-off-by Mark Haverkamp <markh@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Driver version update

Received from Mark Salyzyn:

Version patch, update to reflect a rough estimate of the Adaptec build
(2423) that coincides with the sources on kernel.org.

Signe

[SCSI] aacraid: Driver version update

Received from Mark Salyzyn:

Version patch, update to reflect a rough estimate of the Adaptec build
(2423) that coincides with the sources on kernel.org.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: merge rx and rkt code

Received from Mark Salyzyn:

The only real difference between the rkt and rx platform modules is the
offset of the message registers. This patch recognizes this

[SCSI] aacraid: merge rx and rkt code

Received from Mark Salyzyn:

The only real difference between the rkt and rx platform modules is the
offset of the message registers. This patch recognizes this similarity
and simplifies the driver to reduce it's code footprint and to improve
maintainability by reducing the code duplication.

Visibly, the 'rkt.c' portion of this patch looks more complicated than
it really is. View it as retaining the rkt-only specifics of the
interface.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: misc cleanup

Received from Mark Salyzyn:

Basically cleanup, nothing here will have an affect. Adjusting some
error codes, removing superfluous definitions and code fragments.

Signe

[SCSI] aacraid: misc cleanup

Received from Mark Salyzyn:

Basically cleanup, nothing here will have an affect. Adjusting some
error codes, removing superfluous definitions and code fragments.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Reset adapter in recovery timeout

Received from Mark Salyzyn

If the adapter is in blinkled (Firmware Assert) when error recovery
timeout actions have been triggered, perform an adap

[SCSI] aacraid: Reset adapter in recovery timeout

Received from Mark Salyzyn

If the adapter is in blinkled (Firmware Assert) when error recovery
timeout actions have been triggered, perform an adapter warm reset and
restart the initialization.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Restart adapter on firmware assert (Update 2)

Received from Mark Salyzyn

If the adapter should be in a blinkled (Firmware Assert) state when the
driver loads, we will perform a warm

[SCSI] aacraid: Restart adapter on firmware assert (Update 2)

Received from Mark Salyzyn

If the adapter should be in a blinkled (Firmware Assert) state when the
driver loads, we will perform a warm restart of the Adapter Firmware to
see if we can rescue the adapter. Possible causes of a blinkled can
occur on some early release motherboard BIOSes, transitory PCI bus
problems on embedded systems or non-x86 based architectures, transitory
startup failures of early release drives or transitory hardware
failures; some of which can bite the adapter later at runtime. Future
enhancements will include recovery during runtime.

Fixed extra whitespace space issue.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: small misc. cleanups

Received from Mark Salyzyn

Spelling correction, orphaned comment removal & update branch name.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: Ja

[SCSI] aacraid: small misc. cleanups

Received from Mark Salyzyn

Spelling correction, orphaned comment removal & update branch name.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: remove unneeded list

Received From Mark Salyzyn

The queue tracking is just not being used, not even for debugging. Information
about outstanding commands can be acquired from the sc

[SCSI] aacraid: remove unneeded list

Received From Mark Salyzyn

The queue tracking is just not being used, not even for debugging. Information
about outstanding commands can be acquired from the scsi structures.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: adjustable timeouts

Received From Mark Salyzyn

Add the ability to adjust for unusual corner case failures. Both of
these additional module parameters deal with embedded, non-intel o

[SCSI] aacraid: adjustable timeouts

Received From Mark Salyzyn

Add the ability to adjust for unusual corner case failures. Both of
these additional module parameters deal with embedded, non-intel or
complicated system scenarios.

Aif_timeout can be increased past the default 2 minute timeout to drop
application registrations when a system has an unusually high event load
resulting from continuing management requests, or simultaneous builds,
or sluggish user space as a result of system load.

Startup_timeout can be increased past the default 3 minute timeout to
drop an adapter initialization for systems that have a very large number
of targets, or slow to spin-up targets, or a complicated set of array
configurations that extend the time for the firmware to declare that it
is operational. This timeout would only have an affect on non-intel
based systems, as the (more patient) BIOS would generally be where the
startup delay would be dealt with.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Driver version update

Received from Mark Salyzyn

Fix module param
Update driver version.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottom

[SCSI] aacraid: Driver version update

Received from Mark Salyzyn

Fix module param
Update driver version.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Add timeout for events

Received from Mark Salyzyn

Plug and play actions resulting from event sequences shall time out if
they take longer than 30 seconds to complete.

Signed-off-by

[SCSI] aacraid: Add timeout for events

Received from Mark Salyzyn

Plug and play actions resulting from event sequences shall time out if
they take longer than 30 seconds to complete.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Track command ownership in driver

Received from Mark Salyzyn

The loss of the ownership flags, despite their flaws, in the scsi
command were sorely missed and are reinstated more acc

[SCSI] aacraid: Track command ownership in driver

Received from Mark Salyzyn

The loss of the ownership flags, despite their flaws, in the scsi
command were sorely missed and are reinstated more accurately in the
aacraid driver to track commands and permit us to properly handle error
recovery actions.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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[SCSI] aacraid: Use scmd_ functions

Received from Mark Salyzyn

Clean up the remaining scsi id access methods, drop ID_LUN_TO_CONTAINER
macro.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-

[SCSI] aacraid: Use scmd_ functions

Received from Mark Salyzyn

Clean up the remaining scsi id access methods, drop ID_LUN_TO_CONTAINER
macro.

Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

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