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  1. 22 9月, 2011 1 次提交
  3. 31 3月, 2011 1 次提交
  5. 24 3月, 2011 1 次提交
    • M
      [SCSI] aacraid: Add new code for PMC-Sierra's SRC based controller family · e8b12f0f
      由 Mahesh Rajashekhara 提交于 
      Added new hardware device 0x28b interface for PMC-Sierra's SRC based
controller family.

- new src.c file for 0x28b specific functions
- new XPORT header required
- sync. command interface: doorbell bits shifted (SRC_ODR_SHIFT, SRC_IDR_SHIFT)
- async. Interface: different inbound queue handling, no outbound I2O
  queue available, using doorbell ("PmDoorBellResponseSent") and
  response buffer on the host ("host_rrq") for status
- changed AIF (adapter initiated FIBs) interface: "DoorBellAifPending"
  bit to inform about pending AIF, "AifRequest" command to read AIF,
  "NoMoreAifDataAvailable" to mark the end of the AIFs
Signed-off-by: NMahesh Rajashekhara <aacraid@pmc-sierra.com>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
      e8b12f0f
  7. 02 11月, 2010 1 次提交
  9. 17 9月, 2010 1 次提交
  11. 17 5月, 2010 2 次提交
  13. 18 1月, 2010 1 次提交
    • P
      [SCSI] aacraid: fix File System going into read-only mode · cacb6dc3
      由 Penchala Narasimha Reddy Chilakala, ERS-HCLTech 提交于 
      These particular problems were reported by Cisco and SAP and customers
as well. Cisco reported on RHEL4 U6 and SAP reported on SLES9 SP4 and
SLES10 SP2. We added these fixes on RHEL4 U6 and gave a private build
to IBM and Cisco. Cisco and IBM tested it for more than 15 days and
they reported that they did not see the issue so far. Before the fix,
Cisco used to see the issue within 5 days. We generated a patch for
SLES9 SP4 and SLES10 SP2 and submitted to Novell. Novell applied the
patch and gave a test build to SAP. SAP tested and reported that the
build is working properly.

We also tested in our lab using the tools "dishogsync", which is IO
stress tool and the tool was provided by Cisco.

Issue1:  File System going into read-only mode

Root cause: The driver tends to not free the memory (FIB) when the
management request exits prematurely. The accumulation of such
un-freed memory causes the driver to fail to allocate anymore memory
(FIB) and hence return 0x70000 value to the upper layer, which puts
the file system into read only mode.

Fix details: The fix makes sure to free the memory (FIB) even if the
request exits prematurely hence ensuring the driver wouldn't run out
of memory (FIBs).


Issue2: False Raid Alert occurs

When the Physical Drives and Logical drives are reported as deleted or
added, even though there is no change done on the system

Root cause: Driver IOCTLs is signaled with EINTR while waiting on
response from the lower layers. Returning "EINTR" will never initiate
internal retry.

Fix details: The issue was fixed by replacing "EINTR" with
"ERESTARTSYS" for mid-layer retries.
Signed-off-by: NPenchala Narasimha Reddy <ServeRAIDDriver@hcl.in>
Signed-off-by: NJames Bottomley <James.Bottomley@suse.de>
      cacb6dc3
  15. 07 4月, 2009 2 次提交
  17. 30 12月, 2008 1 次提交
  19. 03 5月, 2008 1 次提交
  21. 02 5月, 2008 1 次提交
  23. 19 4月, 2008 1 次提交
  25. 16 4月, 2008 1 次提交
  27. 08 4月, 2008 1 次提交
  29. 12 2月, 2008 1 次提交
  31. 24 1月, 2008 6 次提交
    • S
      [SCSI] aacraid: add Voodoo Lite class of cards. · cb1042f2
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      cb1042f2
    • S
      [SCSI] aacraid: remove pigs in space · 8ce3eca4
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      8ce3eca4
    • S
      [SCSI] aacraid: respond to enclosure service events · 0995ad38
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      0995ad38
    • S
      [SCSI] aacraid: OS panic after Adapter panic (hardening). · b6ef70f3
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      b6ef70f3
    • S
      [SCSI] aacraid: fix big endian issues · a3940da5
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      a3940da5
    • S
      [SCSI] aacraid: add parameter to control FUA and SYNCHRONIZE_CACHE policy · 95e852e1
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      95e852e1
  33. 12 1月, 2008 3 次提交
    • S
      [SCSI] aacraid: fix driver failure with Dell PowerEdge Expandable RAID Controller 3/Di · 94cf6ba1
      由 Salyzyn, Mark 提交于 
      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: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      94cf6ba1
    • C
      [SCSI] aacraid: don't assign cpu_to_le32(int) to u8 · f3307f72
      由 Christoph Hellwig 提交于 
      On Wed, Nov 07, 2007 at 01:51:44PM -0500, Salyzyn, Mark wrote:
> Christoph Hellwig [mailto:hch@infradead.org] sez:
> > Did anyone run the driver through sparse to see if we have
> > more issues like this?
>
> There are some warnings from sparse, none like this one. I will deal
> with the warnings ...

Actually there are a lot of endianess warnings, fortunately most of them
harmless.  The patch below fixes all of them up (including the ones in
the patch I replied to), except for aac_init_adapter which is really odd
and I don't know what to do.

[jejb fixed up rejections and checkpatch issues]
Signed-off-by: NChristoph Hellwig <hch@lst.de>
Acked-by: NMark Salyzyn <mark_salyzyn@adaptec.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      f3307f72
    • S
      [SCSI] aacraid: forced reset override · f858317d
      由 Salyzyn, Mark 提交于 
      Some of our vendors have requested that our adapters ignore the hardware
reset attempts during recovery and have enforced this with changes in
Adapter Firmware. Some of our customers have requested the option to be
able to reset the adapter under adverse adapter failure, we even had a
few defects reported here considering it a regression that the Adapter
could not be reset. This patch addresses this dichotomy. The user can
force the adapter to be reset if it supports the IOP_RESET_ALWAYS
command, in cases where the adapter has been programmed to ignore the
reset, by setting the aacraid.check_reset parameter to a value of -1.

The driver will not reset an Adapter that does not support the reset
command(s).

This patch also fixes and cleans up some of the logic associated with
resetting the adapter.
Signed-off-by: NMark Salyzyn <aacraid@adaptec.com>
Signed-off-by: NJames <James.Bottomley@HansenPartnership.com>
Signed-off-by: NJames Bottomley <James.Bottomley@HansenPartnership.com>
      f858317d
  35. 08 11月, 2007 2 次提交
  37. 13 10月, 2007 1 次提交
  39. 19 7月, 2007 1 次提交
  41. 18 6月, 2007 1 次提交
  43. 06 5月, 2007 1 次提交
  45. 01 4月, 2007 1 次提交
  47. 20 3月, 2007 4 次提交
    • M
      [SCSI] aacraid: Improved error handling · 03d44337
      由 Mark Haverkamp 提交于 
      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: NMark Haverkamp <markh@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      03d44337
    • M
      [SCSI] aacraid: Fix ioctl handling when adapter resets · 33bb3b29
      由 Mark Haverkamp 提交于 
      Received from Mark Salyzyn,

Outstanding ioctl calls still have some problems with aborting cleanly
in the face of a reset iop recovery action should the adapter ever enter
into a Firmware Assert (BlinkLED) condition. The enclosed patch resolves
some uncovered flawed handling.
Signed-off-by: NMark Haverkamp <markh@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      33bb3b29
    • M
      [SCSI] aacraid: Fix struct element name issue · a8166a52
      由 Mark Haverkamp 提交于 
      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: NMark Haverkamp <markh@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      a8166a52
    • M
      [SCSI] aacraid: add restart adapter platform function · 8418852d
      由 Mark Haverkamp 提交于 
      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: NMark Haverkamp <markh@linux-foundation.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      8418852d
  49. 27 1月, 2007 1 次提交
    • M
      [SCSI] aacraid: rework communication support code · 28713324
      由 Mark Haverkamp 提交于 
      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: NJames Bottomley <James.Bottomley@SteelEye.com>
      28713324
  51. 23 11月, 2006 2 次提交
    • M
      [SCSI] aacraid: Abort management FIBs · d18b448f
      由 Mark Haverkamp 提交于 
      Received from Mark Salyzyn:

Add code to abort outstanding management ioctl fibs when the blinkLED recovery
is performed. This code is 'clunky' and does not have any real feedback in that
the reset could progress before the user application has gotten it's
notification of command completion. We put a schedule() call to delay just the
right amount for most cases, because we tried a spin and still managed to find
cases where we would spin forever waiting for the management application to
acknowledge the impending doom surrounding the cause of the BlinkLED. Will
cause an oops in the context of the management application if we proceed too
quickly. I view this as the lesser of many evils since currently if there are
outstanding management ioctls during a need to reset/recover the adapter, the
management application just locks up and waits forever. The best practices fix
for this problem not going to be simple or easy (at least the fixes I imagine
today); and we found a balance between the needs of the driver to proceed, and
the applications that locked or confused that would hold back the driver. I
just do not like the idea of a kernel oops in an application to deal with low
priority, sluggish or misbehaving applications.
Signed-off-by: NMark Haverkamp <markh@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      d18b448f
    • M
      [SCSI] aacraid: Detect Blinkled at startup · 33524b70
      由 Mark Haverkamp 提交于 
      Received from Mark Salyzyn:

Blinkled at startup is useful for catching Adapters in a lot of pain, in a
BlinkLED assert, quickly; rather than waiting several minutes for commands to
timeout.
Signed-off-by: NMark Haverkamp <markh@osdl.org>
Signed-off-by: NJames Bottomley <James.Bottomley@SteelEye.com>
      33524b70