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Added support for MSI utilizing the aacraid.msi=1 parameter. This
patch adds some localized or like-minded janitor fixes. Since the
default is disabled, there is no impact on the code paths unless the
customer wishes to experiment with the MSI performance.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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The cards being added are supported in a limited sense already through
family matching, but we needed to add some functionality to the driver
to expose selectively the physical drives. These Physical drives are
specifically marked to not be part of any array and thus are declared
JBODs (Just a Bunch Of Drives) for generic SCSI access.
We report that this is the second patch in a set of two, but merely
depends on the stand-alone functionality of the first patch which adds
in that case the ability to report a driver feature flag via sysfs. We
leverage that functionality by reporting that this driver now supports
this new JBOD feature for the controller so that the array management
applications may react accordingly and guide the user as they manage
the controller.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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I was amazed at how much embedded space was present in the aacraid
driver source files. Just selected five files from the set to clean up
for now and the attached patch swelled to 73K in size!
- Removed trailing space or tabs
- Removed spaces embedded within tabs
- Replaced leading 8 spaces with tabs
- Removed spaces before )
- Removed ClusterCommand as it was unused (noticed it as one triggered by above)
- Replaced scsi_status comparison with 0x02, to compare against SAM_STATUS_CHECK_CONDITION.
- Replaced a long series of spaces with tabs
- Replaced some simple if...defined() with ifdef/ifndef
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Added support to respond to enclosure service events
(controller AIFs) to add, online or offline physical targets
reported to sg. Also added online and offlining of arrays.
Removed an automatic variable definition in a sub block that
hid an earlier definition, determined to be inert as the
sub-block use did not interfere. Bumped the driver versioning
to stamp the addition of this feature.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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In experiments in the lab we managed to trigger an Adapter firmware
panic (BlinkLED) coincidentally while several pass-through ioctl
command from the management software were outstanding on a bug only
present on a class of RAID Adapters that require a hardware reset
rather than a commanded reset. The net result was an attempt to time
out the management software command as if it came from the SCSI layer
resulting in an OS panic.
Adapters that use commanded reset, management commands are returned
failed by the Adapter correctly. The adapter firmware panic that
resulted in this condition was also resolved, and there were no
adapters in the field with this specific firmware bug so we do not
expect any field reports. This is a rare or unlikely corner condition,
and no reports have ever been forwarded from the field.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Big endian systems issues discovered in the aacraid driver. Somewhat
reverses a patch from November 7th of last year that removed swap
operations because they formerly were being assigned to an u8 array
when they should have been assigned to an le32 array.
This patch is largely inert for any little endian processor
architecture. It resolves a bug in delivering the BlinkLED AIF event
to registered applications when the adapter or associated hardware was
reset due to ill health. A rare corner case occurrence, also largely
unnoticed by any as it was a new (untested!) feature.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Report the RAID level string for the SCSI device representing the
array. Report is in /sys/class/scsi_device/#:#:#:#/device/level.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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aacraid.cache parameter, Disable Queue Flush commands:
bit 0 - Disable FUA in WRITE SCSI commands
bit 1 - Disable SYNCHRONIZE_CACHE SCSI command
bit 2 - Disable only if Battery not protecting adapter supplied Cache
e.g.: aacraid.cache=7 will disable the FUA and SYNCHRONIZE_CACHE
commands if the adapter has reported that it's cache is battery backed
up.
This parameter permits experimentation with tradeoffs between
performance and caching policy.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Controller 3/Di
As reported in http://bugzilla.kernel.org/show_bug.cgi?id=3D9133 it was
discovered that the PERC line of controllers lacked a key 64 bit
ScatterGather capable SCSI pass-through function. The adapters are still
capable of 64 bit ScatterGather I/O commands, but these two can not be
mixed. This problem was exacerbated by the introduction of the SCSI
Generic access to the DASD physical devices.
The fix for users before this patch is applied is aacraid.dacmode=3D0 on
the kernel command line to disable 64 bit I/O.
The enclosed patch introduces a new adapter quirk and tries to limp
along by enabling pass-through in situations where memory is 32 bit
addressable on 64 bit machines, or disable the pass-through functions
altogether. I expect that the check for 32 bit addressable memory to be
controversial in that it can be incorrect in non-Dell non-Intel systems
that PERC would never be installed under, the alternative is to disable
pass-through in all cases which could be reported as another regression.
Pass-through is used for SCSI Generic access to the physical devices, or
for the management applications to properly function.
In systems where this patch has disabled pass-through because it is
unsupportable in combination with I/O performance, the user can choose
to enable pass-through by turning off dacmode (aacraid.dacmode=3D0) or
limiting the discovered kernel memory (mem=3D4G) with an associated loss
in runtime performance. If we chose instead to turn off 64 bit dacmode
for the adapters with this quirk, then this would be reported as another
regression.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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Fix the various misspellings of "system", controller", "interrupt" and
"[un]necessary".
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Too generic, clashes with ISDN.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Minor unimportant cuttings from the floor bundled in with a version
stamp update. Only controversial change is the dropping of Alan Cox
copyright on the nark.c module since that file has no code written by
him in it.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Report VPD inquiry page 0x80 with an unique array creation serial
number (CUID). When an array is created, the metadata stored on the
physical drives gets an unique serial number. This serial number
remains constant through array morphing or migration to other
controllers. This patch is a forward port and modification to survive
morphing and migration operations, of a similar piece of
(un-attributed author) code added to the SLES10 SP1 aacraid driver.
To test the results of the patch, observe that /dev/disk/by-id/
entries will show up for the arrays resulting from the udev rules.
Also, as per the udev rules, 'scsi_id -g -x -a -s /block/sd? -d
/dev/sd?' will report the ID_SERIAL as constructed from the inquiry
data.
It was reported to me that the 'ADPT' leading the serial number was bad
form, that the inquiry vendor field was enough to differentiate the
storage uniquely. Subsequent search found that another Adaptec AAC based
driver reported the 8 hex serial number only without such adornments, so
dropped ADPT to match. Resubmitting the patch with this alteration.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Support displaying long serial number information. Reuse sysfs handler
internally as helper.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Add the ability for an application to issue a hardware reset to the
adapter via sysfs. Typical uses include restarting the adapter after it
has been flashed. Bumped revision number for the driver and added a
feature to periodically check the adapter's health (check_interval),
update the adapter's concept of time (update_interval) and block
checking/resetting of the adapter (check_reset).
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Conflicts:
drivers/scsi/jazz_esp.c
Same changes made by both SCSI and SPARC trees: problem with UTF-8
conversion in the copyright.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Acked-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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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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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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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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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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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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- 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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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Use the kthread_ API instead of opencoding lots of hairy code for kernel
thread creation and teardown.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Salyzyn, Mark <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Received from Mark Salyzyn,
Reduce the possibility of namespace collision. Prefix with aac_.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Received From Mark Salyzyn.
The Jaguar and Corsair class of adapters (2410, 2810, 2610, 21610, CERC)
perform better (about 10% better read performance, write performance
neutral) with current Firmware if the OS limits the number of scatter
gather elements to 17 per request.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Received from Mark Salyzyn.
This patch adds the 'new comm' interface, which modern AAC based
adapters that are less than a year old support in the name of much
improved performance. These modern adapters support both the legacy and
the 'new comm' interfaces.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Received from Mark Salyzyn.
The compat field needed to be in cpu order.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Juan was kind enough to linger on site, and work on a production
machine, to try the parameter to make the system stable. He discovered
that reducing the maximum transfer size issued to the adapter to 128KB
stabilized his system. This is related to an earlier change for the
2.6.13 tree resulting from Martin Drab's testing where the transfer size
was reduced from 4G to 256KB; we needed to go still further in scaling
back the request size.
Here is the patch that tames this regression.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Received from Mark Salyzyn from Adaptec.
High Priority Queues have *never* been used in the entire history of the
aac based adapters. Associated with this, aac_insert_entry can be
removed, SavedIrql can be removed & padding variable can be removed.
With the movement of SavedIrql out & replaced with an automatic variable
qflags, the locking can be refined somewhat. The sparse warnings did not
catch the need for byte swapping in the 'dprintk' debugging print
macros, so fixed this up when this code was moved outside of the now
refined locking.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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