Commit Graph

262 Commits

Author SHA1 Message Date
Martin K. Petersen 54b2b50c20 [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.

This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.

[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-11-29 08:48:39 +04:00
Linus Torvalds 9073e1a804 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina:
 "Usual earth-shaking, news-breaking, rocket science pile from
  trivial.git"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
  doc: usb: Fix typo in Documentation/usb/gadget_configs.txt
  doc: add missing files to timers/00-INDEX
  timekeeping: Fix some trivial typos in comments
  mm: Fix some trivial typos in comments
  irq: Fix some trivial typos in comments
  NUMA: fix typos in Kconfig help text
  mm: update 00-INDEX
  doc: Documentation/DMA-attributes.txt fix typo
  DRM: comment: `halve' -> `half'
  Docs: Kconfig: `devlopers' -> `developers'
  doc: typo on word accounting in kprobes.c in mutliple architectures
  treewide: fix "usefull" typo
  treewide: fix "distingush" typo
  mm/Kconfig: Grammar s/an/a/
  kexec: Typo s/the/then/
  Documentation/kvm: Update cpuid documentation for steal time and pv eoi
  treewide: Fix common typo in "identify"
  __page_to_pfn: Fix typo in comment
  Correct some typos for word frequency
  clk: fixed-factor: Fix a trivial typo
  ...
2013-11-15 16:47:22 -08:00
Sumit.Saxena@lsi.com 999ece0af9 [SCSI] megaraid_sas: Fix synchronization problem between sysPD IO path and AEN path
There is syncronization problem between sysPD IO path and AEN path. Driver
maintains instance->pd_list[] array, which will get updated(by calling
function megasas_get_pd_list[]), whenever any of below events occurs-

MR_EVT_PD_INSERTED
MR_EVT_PD_REMOVED
MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED
MR_EVT_FOREIGN_CFG_IMPORTED

At same time running sysPD IO will be accessing the same array
instance->pd_list[], which is getting updated in AEN path, because of this IO
may not get correct PD info from instance->pd_list[] array.

Signed-off-by: Adam Radford <adam.radford@lsi.com>
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-10-25 11:27:36 +01:00
Sumit.Saxena@lsi.com 3993a86241 [SCSI] megaraid_sas: fixes for few endianess issues
Fixed two issues in this patch-
1) In function megasas_get_pd_list(), data read(pd_addr->deviceId) from DMAed memory is converted to CPU's endianess.
2) While register AEN, removed some endianness conversion on some fields, since their endianess is already converted.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-10-25 09:57:58 +01:00
Jingoo Han 08b7e10716 SCSI: remove unnecessary pci_set_drvdata()
Since commit 0998d06310
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-14 15:26:04 +02:00
Linus Torvalds 0375ec5899 SCSI misc on 20130915
This patch set is a set of driver updates (megaraid_sas, fnic, lpfc, ufs,
 hpsa) we also have a couple of bug fixes (sd out of bounds and ibmvfc error
 handling) and the first round of esas2r checker fixes and finally the much
 anticipated big endian additions for megaraid_sas.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull misc SCSI driver updates from James Bottomley:
 "This patch set is a set of driver updates (megaraid_sas, fnic, lpfc,
  ufs, hpsa) we also have a couple of bug fixes (sd out of bounds and
  ibmvfc error handling) and the first round of esas2r checker fixes and
  finally the much anticipated big endian additions for megaraid_sas"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (47 commits)
  [SCSI] fnic: fnic Driver Tuneables Exposed through CLI
  [SCSI] fnic: Kernel panic while running sh/nosh with max lun cfg
  [SCSI] fnic: Hitting BUG_ON(io_req->abts_done) in fnic_rport_exch_reset
  [SCSI] fnic: Remove QUEUE_FULL handling code
  [SCSI] fnic: On system with >1.1TB RAM, VIC fails multipath after boot up
  [SCSI] fnic: FC stat param seconds_since_last_reset not getting updated
  [SCSI] sd: Fix potential out-of-bounds access
  [SCSI] lpfc 8.3.42: Update lpfc version to driver version 8.3.42
  [SCSI] lpfc 8.3.42: Fixed issue of task management commands having a fixed timeout
  [SCSI] lpfc 8.3.42: Fixed inconsistent spin lock usage.
  [SCSI] lpfc 8.3.42: Fix driver's abort loop functionality to skip IOs already getting aborted
  [SCSI] lpfc 8.3.42: Fixed failure to allocate SCSI buffer on PPC64 platform for SLI4 devices
  [SCSI] lpfc 8.3.42: Fix WARN_ON when driver unloads
  [SCSI] lpfc 8.3.42: Avoided making pci bar ioremap call during dual-chute WQ/RQ pci bar selection
  [SCSI] lpfc 8.3.42: Fixed driver iocbq structure's iocb_flag field running out of space
  [SCSI] lpfc 8.3.42: Fix crash on driver load due to cpu affinity logic
  [SCSI] lpfc 8.3.42: Fixed logging format of setting driver sysfs attributes hard to interpret
  [SCSI] lpfc 8.3.42: Fixed back to back RSCNs discovery failure.
  [SCSI] lpfc 8.3.42: Fixed race condition between BSG I/O dispatch and timeout handling
  [SCSI] lpfc 8.3.42: Fixed function mode field defined too small for not recognizing dual-chute mode
  ...
2013-09-15 17:41:30 -04:00
Sumit.Saxena@lsi.com 94cd65ddf4 [SCSI] megaraid_sas: addded support for big endian architecture
This patch will add big endian architecture support to megaraid_sas
driver. The support added is for LSI MegaRAID all generation controllers-
(3Gb/s, 6Gb/s and 12 Gb/s controllers).

We have done basic sanity test @ppc64 arch and @x86_64. Additional
testing/observations are welcome.

[jejb: fix up rejections]
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-10 15:01:26 -07:00
adam radford 2b4857c30e [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-06 15:55:57 -07:00
adam radford 21c9e160a5 [SCSI] megaraid_sas: Add High Availability clustering support using shared Logical Disks
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-09-06 15:54:55 -07:00
Linus Torvalds 2e515bf096 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree from Jiri Kosina:
 "The usual trivial updates all over the tree -- mostly typo fixes and
  documentation updates"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (52 commits)
  doc: Documentation/cputopology.txt fix typo
  treewide: Convert retrun typos to return
  Fix comment typo for init_cma_reserved_pageblock
  Documentation/trace: Correcting and extending tracepoint documentation
  mm/hotplug: fix a typo in Documentation/memory-hotplug.txt
  power: Documentation: Update s2ram link
  doc: fix a typo in Documentation/00-INDEX
  Documentation/printk-formats.txt: No casts needed for u64/s64
  doc: Fix typo "is is" in Documentations
  treewide: Fix printks with 0x%#
  zram: doc fixes
  Documentation/kmemcheck: update kmemcheck documentation
  doc: documentation/hwspinlock.txt fix typo
  PM / Hibernate: add section for resume options
  doc: filesystems : Fix typo in Documentations/filesystems
  scsi/megaraid fixed several typos in comments
  ppc: init_32: Fix error typo "CONFIG_START_KERNEL"
  treewide: Add __GFP_NOWARN to k.alloc calls with v.alloc fallbacks
  page_isolation: Fix a comment typo in test_pages_isolated()
  doc: fix a typo about irq affinity
  ...
2013-09-06 09:36:28 -07:00
Matthias Schid 3948ff8bba scsi/megaraid fixed several typos in comments
Fixed several typos in comments in megaraid_mbox.c, megaraid_mm.c
and megaraid_sas_fusion.h.

Signed-off-by: Matthias Schid <aircrach115@gmail.com>
Signed-off-by: Stefan Huber <steffhip@gmail.com>
Signed-off-by: Simon Puels <simon.puels@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-08-20 13:09:28 +02:00
Sumit.Saxena@lsi.com 6431f5d7c6 [SCSI] megaraid_sas: megaraid_sas driver init fails in kdump kernel
Problem: When Hardware IOMMU is on, megaraid_sas driver initialization fails
in kdump kernel with LSI MegaRAID controller(device id-0x73).

Actually this issue needs fix in firmware, but for firmware running in field,
this driver fix is proposed to resolve the issue.  At firmware initialization
time, if firmware does not come to ready state, driver will reset the adapter
and retry for firmware transition to ready state unconditionally(not only
executed for kdump kernel).

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-02 13:01:29 -07:00
Dan Carpenter fec3c1b457 [SCSI] megaraid_sas: fix a bug for 64 bit arches
On 64 bit then -1UL and -1U are not equal, so these conditions don't
work as intended and it breaks error handling.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-09 12:14:06 +01:00
Bjørn Mork 7a6a731bd0 [SCSI] megaraid_sas: fix memory leak if SGL has zero length entries
commit 98cb7e44 ([SCSI] megaraid_sas: Sanity check user
supplied length before passing it to dma_alloc_coherent())
introduced a memory leak.  Memory allocated for entries
following zero length SGL entries will not be freed.

Reference: http://bugs.debian.org/688198

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: <stable@vger.kernel.org>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-07-05 22:42:42 +01:00
James Georgas a3fda7dd51 [SCSI] megaraid: minor cut and paste error fixed.
This looks like a cut and paste typo to me. Both of the
megasas_read_fw_status_reg_* functions involved are identical though, so
there was no bad behaviour. I changed it for consistency and clarity.

Signed-off-by: James Georgas <soulpa7ch@gmail.com>
Acked-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-28 13:41:33 -07:00
Sumit.Saxena@lsi.com 7525be545c [SCSI] megaraid_sas: Changelog and driver version update
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:52:10 -07:00
Sumit.Saxena@lsi.com 404a8a1a89 [SCSI] megaraid_sas: Add support to differentiate between iMR vs MR Firmware
Add support to differentiate between iMR(no external memory) and MR(with
external memory) controllers.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:51:05 -07:00
Sumit.Saxena@lsi.com bc93d425fc [SCSI] megaraid_sas: Add support for Uneven Span PRL11
MegaRAID older Firmware does not support uneven span configuration for PRL11.
E.g User wants to create 34 Driver PRL11 config, it was not possible using old
firmware, since it was not supported configuration in old firmware

Old Firmware expect even number of Drives in each span and same number of
physical drives at each span.  Considering above design, 17 Drives at Span-0
and 17 drives at span-1 was not possible.

Now, using this new feature Firmware and Driver both required changes.  New
Firmware can allow user to create 16 Drives at span-0 and 18 Drives at
span-1. This will allow user to create 34 Drives Uneven span PRL11.

RAID map is interface between Driver and FW to fetch all required
fields(attributes) for each Virtual Drives.  Since legacy RAID map consider
Even Span design, there was no place to keep Uneven span information in
existing Raid map.  Because of this limitation, for Uneven span VD, driver can
not use RAID map.

This patch address the changes required in Driver to support Uneven span PRL11
support.

1. Driver will find if Firmware has UnevenSpanSupport or not by reading
   Controller Info.
2. If Firmware has UnvenSpan PRL11 support, then Driver will inform about its
   capability of handling UnevenSpan PRL11 to the firmware.
3. Driver will update its copy of span info on each time Raid map update is
   called.
4. Follow different IO path if it is Uneven Span. (For Uneven Span, Driver
   uses Span Set info to find relavent fields for that particular Virtual
   Disk)

More verbose prints will be available by setting "SPAN_DEBUG" to 1 at
compilation time.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:48:12 -07:00
Sumit.Saxena@lsi.com d46a3ad679 [SCSI] megaraid_sas: Add support for Extended MSI-x vectors for 12Gb/s controller
This Driver will use more than 8 MSI-x support provided by Invader/Fury max
upto 128 MSI-x.

[jejb: fix checkpatch warning]
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:46:31 -07:00
Sumit.Saxena@lsi.com 5d0d908d44 [SCSI] megaraid_sas: Set IoFlags to enable Fast Path for JBODs for 12 Gb/s controllers
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:43:58 -07:00
Sumit.Saxena@lsi.com 39b72c3c74 [SCSI] megaraid_sas: Add support to display Customer branding details in syslog
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:42:26 -07:00
Sumit.Saxena@lsi.com 21d3c7105b [SCSI] megaraid_sas: Add support for MegaRAID Fury (device ID-0x005f) 12Gb/s controllers
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:40:53 -07:00
Sumit.Saxena@lsi.com 32d8745c88 [SCSI] megaraid_sas: Set IO request timeout value provided by OS timeout for Tape devices
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:34:38 -07:00
Sumit.Saxena@lsi.com 105900d56e [SCSI] megaraid_sas: Free event detail memory without device ID check
Free event detail memory from more common place, instead of doing it for
limited device types.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:24:22 -07:00
Sumit.Saxena@lsi.com 70b47b881e [SCSI] megaraid_sas: Update balance count in driver to be in sync of firmware
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:22:18 -07:00
Sumit.Saxena@lsi.com b5bccadd80 [SCSI] megaraid_sas: Fix the interrupt mask for Gen2 controller
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 17:19:44 -07:00
Sumit.Saxena@lsi.com b09e66da3f [SCSI] megaraid_sas: Return DID_ERROR for SCSI IO, when controller is in critical h/w error
Do not return SCSI_MLQUEUE_HOST_BUSY, but send DID_ERROR to SCSI mid-layer, if
adapter is in critical error state.  "SCSI_MLQUEUE_HOST_BUSY" will keep same
SCSI command in loop and it is not a right return value, if controller is
hardware critical error.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-24 16:55:17 -07:00
Dan Carpenter c64e483ea0 [SCSI] megaraid_sas: release lock on error path
We should unlock here before returning.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-05-02 12:08:46 -07:00
Bjorn Helgaas 9936906597 [SCSI] megaraid_sas: Use correct #define for MSI-X capability
Previously we used PCI_MSI_FLAGS to locate a register in the MSI-X
capability.  This did work because the MSI and MSI-X flags happen
to be at the same offsets, but was confusing.

PCI_MSIX_FLAGS_ENABLE is already defined in include/uapi/linux/pci_regs.h,
so no need to define it again.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Adam Radford <aradford@gmail.com>
2013-04-18 11:07:46 -06:00
adam radford 5eca4a67b8 [SCSI] megaraid_sas: Version and Changelog update
This patch updates the megaraid_sas driver version and updates
Documentation/scsi/ChangeLog.megaraid_sas.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 15:37:15 +00:00
adam radford 9c5ebd09e5 [SCSI] megaraid_sas: Dont load DevHandle unless FastPath enabled
The following patch for megaraid_sas will fix an issue where the
driver should not be loading the DevHandle unless FastPath is enabled.
 If FastPath was not enabled, this means the hardware raid map
validation failed for some reason, or the map was corrupted, which
could mean the DevHandle could be invalid.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 15:31:41 +00:00
adam radford 046c9ec259 [SCSI] megaraid_sas: Add 4k FastPath DIF support
The following patch for megaraid_sas will allow Fastpath T10PI/DIF
frame builds to work with 4k sector size.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-22 15:25:18 +00:00
Greg Kroah-Hartman 6f03979051 Drivers: scsi: remove __dev* attributes.
CONFIG_HOTPLUG is going away as an option.  As a result, the __dev*
markings need to be removed.

This change removes the use of __devinit, __devexit_p, __devinitdata,
__devinitconst, and __devexit from these drivers.

Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-03 15:57:01 -08:00
Xiaotian Feng c1d390d8e6 megaraid: fix BUG_ON() from incorrect use of delayed work
megaraid use INIT_WORK to declare a hotplug_work, but cast the
hotplug_work from work_struct to delayed_work and
schedule_delayed_work on it.  This is very dangerous, as other part of
delayed_work might be kernel memories allocated by others.

With commit 8852aac ("workqueue: mod_delayed_work_on() shouldn't queue
timer on 0 delay"), schedule_delayed_work() will check dwork->timer
before queue_work even when @delay is 0, this causes megaraid code to
hit the BUG_ON() in workqueue code.  Change megaraid code to use
delayed work.

Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-scsi@vger.kernel.org
2012-12-04 07:29:47 -08:00
adam radford ae59057b64 [SCSI] megaraid_sas: Version, Changelog, Copyright update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:21:48 +01:00
adam radford a3a922099c [SCSI] megaraid_sas: Remove duplicate code
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:20:41 +01:00
adam radford 8ead581609 [SCSI] megaraid_sas: Add SystemPD FastPath support
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:19:48 +01:00
adam radford e187df6399 [SCSI] megaraid_sas: Add array boundary check for SystemPD
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:19:11 +01:00
adam radford f9eff81584 [SCSI] megaraid_sas: Load io_request DataLength in bytes
Load io_request->DataLength in bytes for newer firmware that supports high
availability.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:17:26 +01:00
adam radford 079eaddf2e [SCSI] megaraid_sas: Add module param for configurable MSI-X vector count
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:12:30 +01:00
adam radford 58af7b884f [SCSI] megaraid_sas: Remove un-needed completion_lock spinlock calls
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-10-09 11:04:08 +01:00
James Bottomley fe709ed827 Merge SCSI misc branch into isci-for-3.6 tag 2012-10-02 08:55:12 +01:00
Fengguang Wu 7731e6bb31 [SCSI] megaraid_sas: combine kmalloc+memset into kzalloc
Use kzalloc rather than kmalloc followed by memset with 0.

Generated by: scripts/coccinelle/api/alloc/kzalloc-simple.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-09-24 12:10:58 +04:00
adam radford cdd75750a1 [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:29 +04:00
adam radford c007b8b2ec [SCSI] megaraid_sas: Add resetwaittime module parameter
This allows a user to adjust the wait time in seconds after I/O timeout before
resetting the adapter.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:29 +04:00
adam radford c5daa6a919 [SCSI] megaraid_sas: Add throttlequeuedepth module parameter
This allows a user to adjust the queue depth of the adapter when throttled due
to I/O timeout.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-24 13:10:28 +04:00
Kashyap Desai bd8d6dd43a [SCSI] megaraid_sas: Move poll_aen_lock initializer
The following patch moves the poll_aen_lock initializer from
megasas_probe_one() to megasas_init().  This prevents a crash when a user
loads the driver and tries to issue a poll() system call on the ioctl
interface with no adapters present.

Signed-off-by: Kashyap Desai <Kashyap.Desai@lsi.com>
Signed-off-by: Adam Radford <aradford@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-08-22 09:39:25 +04:00
Dan Carpenter 6548b0e5b8 [SCSI] megaraid: remove a spurious IRQ enable
We took this lock with spin_lock() so we should unlock it with
spin_unlock() instead of spin_unlock_irq().  This was introduced in
f2c8dc402b "[SCSI] megaraid_mbox: remove scsi_assign_lock usage".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-07-20 08:58:39 +01:00
adam radford e38a813ba9 [SCSI] megaraid_sas: Version and Changelog update
The following patch for megaraid_sas updates the driver version to
v00.00.06.15-rc1, and updates Documentation/scsi/ChangeLog.megaraid_sas.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-04-23 19:26:41 +01:00
adam radford c1529fa25e [SCSI] megaraid_sas: Add fpRead/WriteCapable, fpRead/WriteAcrossStripe checks
The following patch for megaraid_sas fixes the fastpath code decision
logic to use fpRead/WriteCapable, fpRead/WriteAcrossStripe flags
instead of the old logic.  This fixes a bug where fastpath writes
could be sent to a read only LD.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-04-23 19:26:18 +01:00