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287 commits

Author SHA1 Message Date
Sumit.Saxena@avagotech.com fc62b3fc90 megaraid_sas : Firmware crash dump feature support
Resending the patch. Addressed the review comments from Tomas Henzl.
Move buff_offset inside spinlock, corrected loop at crash dump buffer free,
reset_devices check is added to disable fw crash dump feature in kdump kernel.

This feature will provide similar interface as kernel crash dump feature.
When megaraid firmware encounter any crash, driver will collect the firmware raw image and
dump it into pre-configured location.

Driver will allocate two different segment of memory.
#1 Non-DMA able large buffer (will be allocated on demand) to capture actual FW crash dump.
#2 DMA buffer (persistence allocation) just to do a arbitrator job.

Firmware will keep writing Crash dump data in chucks of DMA buffer size into #2,
which will be copy back by driver to the host memory as described in #1.

Driver-Firmware interface:
==================
A.) Host driver can allocate maximum 512MB Host memory to store crash dump data.

This memory will be internal to the host and will not be exposed to the Firmware.
Driver may not be able to allocate 512 MB. In that case, driver will do possible memory
(available at run time) allocation to store crash dump data.

Let’s call this buffer as Host Crash Buffer.

Host Crash buffer will not be contigious as a whole, but it will have multiple chunk of contigious memory.
This will be internal to driver and firmware/application are unaware of it.
Partial allocation of Host Crash buffer may have valid information to debug depending upon
what was collected in that buffer and depending on nature of failure.

Complete Crash dump is the best case, but we do want to capture partial buffer just to grab something rather than nothing.
Host Crash buffer will be allocated only when FW Crash dump data is available,
and will be deallocated once application copy Host Crash buffer to the file.
Host Crash buffer size can be anything between 1MB to 512MB. (It will be multiple of 1MBs)

B.) Irrespective of underlying Firmware capability of crash dump support,
driver will allocate DMA buffer at start of the day for each MR controllers.
Let’s call this buffer as “DMA Crash Buffer”.

For this feature, size of DMA crash buffer will be 1MB.
(We will not gain much even if DMA buffer size is increased.)

C.) Driver will now read Controller Info sending existing dcmd “MR_DCMD_CTRL_GET_INFO”.
Driver should extract the information from ctrl info provided by firmware and
figure out if firmware support crash dump feature or not.

Driver will enable crash dump feature only if
“Firmware support Crash dump” +
“Driver was able to create DMA Crash Buffer”.

If either one from above is not set, Crash dump feature should be disable in driver.
Firmware will enable crash dump feature only if “Driver Send DCMD- MR_DCMD_SET_CRASH_BUF_PARA with MR_CRASH_BUF_TURN_ON”

Helper application/script should use sysfs parameter fw_crash_xxx to actually copy data from
host memory to the filesystem.

Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:14:23 -07:00
Sumit.Saxena@avagotech.com 07e38d94ef megaraid_sas : Do not scan non syspd drives
Resending the patch. Addressed the review comments from Tomas Henzl.

Current driver allow device scan for all the devices on channel 0 and 1.
E.a If we have two single drive raid volumes, we may see prints like below.
First two prints are for physical device which are used to form VD.
Prints like this creates confusion as it is really not required to scan any
hidden physical devices.

scsi1 : LSI SAS based MegaRAID driver
scsi 1:0:0:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5
scsi 1:0:1:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5
scsi 1:2:0:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5
scsi 1:2:1:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5

When slave_alloc called, sdev-type will not be set, so current code will always
return "0" in slave_alloc callback.
This patch make sure that driver return "-ENXIO" for non-syspd devices.

After this patch, we will see prints in syslog only for devices which are exposed.
For current example, below print will be available in syslog.

scsi1 : LSI SAS based MegaRAID driver
scsi 1:2:0:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5
scsi 1:2:1:0: Direct-Access     LSI      MR9361-8i        4.21 PQ: 0 ANSI: 5

Signed-off-by: Sumit Saxena <sumit.saxena@avagotech.com>
Signed-off-by: Kashyap Desai <kashyap.desai@avagotech.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:14:22 -07:00
Adam Radford 5e8d90070b megaraid_sas: Version and Changelog update
The following patch for megaraid_sas updates the driver version and
Documentation/scsi/ChangeLog.megaraid_sas.

Signed-off-by: Adam Radford <aradford@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:54 -07:00
Adam Radford 9ea81f8169 megaraid_sas: Add missing initial call to megasas_get_ld_vf_affiliation().
The following patch for megaraid_sas adds a missing initial call to
megasas_get_ld_vf_affiliation() at the end of megasas_probe_one().

Signed-off-by: Adam Radford <aradford@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:53 -07:00
Adam Radford 4cbfea8865 megaraid_sas: Fix LD/VF affiliation parsing
The following patch for megaraid_sas fixes the LD/VF affiliation policy parsing
code to account for LD targetId's and Hidden LD's (not yet affiliated with any
Virtual Functions).  This also breaks megasas_get_ld_vf_affiliation() into 2
separate functions:  megasas_get_ld_vf_affiliation_111() and
megasas_get_ld_Vf_affiliation_12() to reduce indentation levels.

Signed-off-by: Adam Radford <aradford@gmail.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:52 -07:00
Alexander Gordeev 8ae80ed173 megaraid: Use pci_enable_msix_range() instead of pci_enable_msix()
As result of deprecation of MSI-X/MSI enablement functions
pci_enable_msix() and pci_enable_msi_block() all drivers
using these two interfaces need to be updated to use the
new pci_enable_msi_range()  or pci_enable_msi_exact()
and pci_enable_msix_range() or pci_enable_msix_exact()
interfaces.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Kashyap Desai <Kashyap.desai@avagotech.com>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:40 -07:00
Alexander Gordeev dd0881281d megaraid: Fail resume if MSI-X re-initialization failed
Currently the driver fails to analize MSI-X re-enablement
status on resuming and always assumes the success. This
update checks the MSI-X initialization result and fails
to resume if MSI-Xs re-enablement failed.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Kashyap Desai <Kashyap.desai@avagotech.com>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Cc: linux-scsi@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-09-16 09:09:40 -07:00
Joe Perches 7c845eb5e1 scsi: use pci_zalloc_consistent
Remove the now unnecessary memset too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Adam Radford <linuxraid@lsi.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Cc: Dario Ballabio <ballabio_dario@emc.com>
Cc: Michael Neuffer <mike@i-Connect.Net>
Cc: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Cc: Neela Syam Kolli <megaraidlinux@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-08-08 15:57:29 -07:00
Tomas Henzl bc6ac5e8c2 megaraid_sas: fix a small problem when reading state value from hw
When the driver reads state values from the hw it might happen that
different values are read in subsequent reads and this can cause problems,
this may lead to a timeout in this function and a non working adapter.

Cc: Adam Radford <aradford@gmail.com>

Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Reviewed-by: Shintaro Minemoto <fj3207hq@aa.jp.fujitsu.com>
Acked-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2014-05-19 13:30:59 +02:00
adam radford 10b1db86e1 [SCSI] megaraid_sas: Version and Changelog update
The following patch for megaraid_sas updates the driver version to
v06.803.01.00-rc1, and updates Documentation/scsi/ChangeLog.megaraid_sas.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:19:21 -07:00
adam radford 229fe47cd0 [SCSI] megaraid_sas: Add Dell PowerEdge VRTX SR-IOV VF support
The following patch for megaraid_sas adds Dell PowerEdge VRTS SR-IOV VF
support (Device ID 0x002f).

This patch has some > 80 column lines that need to be left in place
for code readability purposes.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:19:21 -07:00
Sumit.Saxena@lsi.com 8058a1691b [SCSI] megaraid_sas: Performance boost fixes
Host lock is added back around queuecommand. Host lock removal can create race
conditon between ISR path(when RAID map update interrupt is raised) and IO
build path of driver, since IO build path is making use of RAID map, and in
case of RAID map update interrupt, old RAID map copy is memset to zero, which
some IOs may be referencing in build IO path.  Changes done for performance
boost- 1) Added code to set SMP IRQ affinity per CPU.  2) Pass MSI-x index,
while issuing sysPD IO.

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>
2014-03-15 10:19:20 -07:00
Sumit.Saxena@lsi.com 46de63e260 [SCSI] megaraid_sas: Set 32-bit DMA mask
If consistent DMA mask is set to 64 bit, fall back to 32bit DMA mask and 32bit consistent DMA mask.
64bit consistent DMA mask may be set on some 64bit DMA slot, which causes DMA offset "10000000000000" and
MFI_INIT and IOCTL frames will have high memory addresses, leads to firmware FAULT.

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>
2014-03-15 10:19:20 -07:00
Sumit.Saxena@lsi.com cfbe7554f6 [SCSI] megaraid_sas: Don't wait forever for non-IOCTL DCMDs
Don't wait forever for firmware response for internal DCMDs sent from driver
firmware. Such DCMDs will be posted to firmware with timeout. Timeout is also
introduced for DCMD sent to abort the commands. DCMD sent via IOCTL path will
still be always blocking to keep the IOCTL design intact.

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>
2014-03-15 10:19:20 -07:00
Hannes Reinecke 58968fc8fb [SCSI] megaraid_sas: check return value for megasas_get_pd_list()
When megasas_get_pd_list() fails we cannot detect any drives,
so we should be checking the return value accordingly.

[jejb: checkpatch fix]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2014-03-15 10:19:18 -07:00
Ben Collins 11f8a7b31f [SCSI] megaraid: Use resource_size_t for PCI resources, not long
The assumption that sizeof(long) >= sizeof(resource_size_t) can lead to
truncation of the PCI resource address, meaning this driver didn't work
on 32-bit systems with 64-bit PCI adressing ranges.

Signed-off-by: Ben Collins <ben.c@servergy.com>
Acked-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-12-19 07:39:03 -08:00
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
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
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
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 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 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 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
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 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
James Bottomley fe709ed827 Merge SCSI misc branch into isci-for-3.6 tag 2012-10-02 08:55:12 +01:00
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
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 798edaadba [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:28:33 +04:00
adam radford 7895f9c957 [SCSI] megaraid_sas: remove poll_mode_io code
This code has never worked correctly, doesn't disable interrupts when
set as a module parameter, doesn't disable interrupts when set after
driver load time in sysfs node, etc.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:28:07 +04:00
adam radford 882be7c3be [SCSI] megaraid_sas: mask off flags in ioctl path
Mask off flags in the ioctl path to prevent memory scribble with older MegaCLI
versions.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2012-01-16 11:27:46 +04:00
adam radford f575c5d3eb [SCSI] megaraid_sas: Fix instance access in megasas_reset_timer
The following patch for megaraid_sas will fix a potential bad pointer access
in megasas_reset_timer(), when a MegaRAID 9265/9285 or 9360/9380 gets a
timeout.  megasas_build_io_fusion() sets SCp.ptr to be a struct
megasas_cmd_fusion *, but then megasas_reset_timer() was casting SCp.ptr to be
a struct megasas_cmd *, then trying to access cmd->instance, which is invalid.

Just loading instance from scmd->device->host->hostdata in
megasas_reset_timer() fixes the issue.

Signed-off-by: Adam Radford <aradford@gmail.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-20 10:18:17 -05:00
adam radford 8d6f5cea12 [SCSI] megaraid_sas: Changelog and version update
The following patch for megaraid_sas updates the
ChangeLog.megaraid_sas file and updates the driver version.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 11:27:02 -05:00
adam radford e5f93a36f7 [SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic
The following patch for megaraid_sas adds a driver workaround for
PERC5/1068 based controller FW that keeps a command from the main
kernel that the driver cannot cancel which was causing a kernel panic
in shutdown of the kdump kernel.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 11:22:05 -05:00
adam radford c8e858fe72 [SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 11:21:36 -05:00
adam radford 36807e6799 [SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 11:21:08 -05:00
adam radford 058a8facfe [SCSI] megaraid_sas: Continue booting immediately if FW in FAULT at driver load time
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-10-16 11:18:00 -05:00
adam radford e17035851a [SCSI] megaraid_sas Version to 5.40-rc1 and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 15:45:22 +04:00
adam radford 4bcde509a8 [SCSI] megaraid_sas: Add .change_queue_depth support
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2011-07-27 15:44:47 +04:00
adam radford 4f788dce0b [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:36:06 -04:00
adam radford 3cc6851f9a [SCSI] megaraid_sas: Add 1078 OCR support
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:56 -04:00
adam radford 541f90b7c6 [SCSI] megaraid_sas: Fix bug where AENs could be lost in probe() and resume()
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:34 -04:00
adam radford 46fd256e05 [SCSI] megaraid_sas: Disable interrupts/free_irq() in megasas_shutdown()
The following patch for megaraid_sas disables interrupts and
free_irq() in megasas_shutdown().

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:35:09 -04:00
adam radford 3f1abce4ab [SCSI] megaraid_sas: Remove MSI-X black list, use MFI_REG_STATE instead
This patch for megaraid_sas removes the MSI-X black list and uses
MFI_REG_STATE.ready.msiEnable instead.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
2011-05-24 12:34:12 -04:00
Christoph Hellwig 5cd049a599 [SCSI] remove cmd->serial_number litter
Stop using cmd->serial_number in printks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-05-01 10:22:40 -05:00
Lucas De Marchi 25985edced Fix common misspellings
Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-31 11:26:23 -03:00
Linus Torvalds e16b396ce3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (47 commits)
  doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore
  Update cpuset info & webiste for cgroups
  dcdbas: force SMI to happen when expected
  arch/arm/Kconfig: remove one to many l's in the word.
  asm-generic/user.h: Fix spelling in comment
  drm: fix printk typo 'sracth'
  Remove one to many n's in a word
  Documentation/filesystems/romfs.txt: fixing link to genromfs
  drivers:scsi Change printk typo initate -> initiate
  serial, pch uart: Remove duplicate inclusion of linux/pci.h header
  fs/eventpoll.c: fix spelling
  mm: Fix out-of-date comments which refers non-existent functions
  drm: Fix printk typo 'failled'
  coh901318.c: Change initate to initiate.
  mbox-db5500.c Change initate to initiate.
  edac: correct i82975x error-info reported
  edac: correct i82975x mci initialisation
  edac: correct commented info
  fs: update comments to point correct document
  target: remove duplicate include of target/target_core_device.h from drivers/target/target_core_hba.c
  ...

Trivial conflict in fs/eventpoll.c (spelling vs addition)
2011-03-18 10:37:40 -07:00
adam radford 00fa2b191b [SCSI] megaraid_sas: Version and Changelog update
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 12:05:07 -06:00
adam radford ebf054b00b [SCSI] megaraid_sas: Fix iMR OCR support to work correctly
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 12:04:14 -06:00
adam radford 42a8d2b34d [SCSI] megaraid_sas: Fix max_sectors for IEEE SGL
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 12:02:52 -06:00
adam radford 1ac515ef3f [SCSI] megaraid_sas: Fix fault state handling
The following patch for megaraid_sas fixes fault state handling in
megasas_transition_to_ready().

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 12:01:41 -06:00
adam radford f86c5424b0 [SCSI] megaraid_sas: Fix tasklet_init call
The following patch fixes an incorrect tasklet_init() call in
megasas_init_fw() to use instancet->tasklet.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 12:00:35 -06:00
adam radford 4c598b2380 [SCSI] megaraid_sas: Add CFG_CLEARED AEN
The following patch for megaraid_sas adds a missing check for
MR_EVT_CFG_CLEARED in megasas_aen_polling().

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 11:57:44 -06:00
adam radford 66192dfe1e [SCSI] megaraid_sas: Fix probe_one to clear MSI-X flags in kdump
The following patch for megaraid_sas fixes megasas_probe_one() to
clear MSI-X flags in kdump when the 'reset_devices' kernel parameter
is passed in.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 11:47:48 -06:00
adam radford e1419191d8 [SCSI] megaraid_sas: Call tasklet_schedule for MSI-X
The following patch for megaraid_sas calls tasklet_schedule() even if
outbound_intr_status == 0 for MFI based boards in MSI-X mode.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 11:46:53 -06:00
adam radford 0a77066acc [SCSI] megaraid_sas: Enable MSI-X before calling megasas_init_fw
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 11:45:54 -06:00
adam radford eb1b123773 [SCSI] megaraid_sas: Fix failure gotos
Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-28 11:42:36 -06:00
Bjørn Mork 98cb7e4413 [SCSI] megaraid_sas: Sanity check user supplied length before passing it to dma_alloc_coherent()
The ioc->sgl[i].iov_len value is supplied by the ioctl caller, and can be
zero in some cases.  Assume that's valid and continue without error.

Fixes (multiple individual reports of the same problem for quite a while):

http://marc.info/?l=linux-ide&m=128941801715301
http://bugs.debian.org/604627
http://www.mail-archive.com/linux-poweredge@dell.com/msg02575.html

megasas: Failed to alloc kernel SGL buffer for IOCTL

and

[   69.162538] ------------[ cut here ]------------
[   69.162806] kernel BUG at /build/buildd/linux-2.6.32/lib/swiotlb.c:368!
[   69.163134] invalid opcode: 0000 [#1] SMP
[   69.163570] last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
[   69.163975] CPU 0
[   69.164227] Modules linked in: fbcon tileblit font bitblit softcursor vga16fb vgastate ioatdma radeon ttm drm_kms_helper shpchp drm i2c_algo_bit lp parport floppy pata_jmicron megaraid_sas igb dca
[   69.167419] Pid: 1206, comm: smartctl Tainted: G        W  2.6.32-25-server #45-Ubuntu X8DTN
[   69.167843] RIP: 0010:[<ffffffff812c4dc5>]  [<ffffffff812c4dc5>] map_single+0x255/0x260
[   69.168370] RSP: 0018:ffff88081c0ebc58  EFLAGS: 00010246
[   69.168655] RAX: 000000000003bffc RBX: 00000000ffffffff RCX: 0000000000000002
[   69.169000] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88001dffe000
[   69.169346] RBP: ffff88081c0ebcb8 R08: 0000000000000000 R09: ffff880000030840
[   69.169691] R10: 0000000000100000 R11: 0000000000000000 R12: 0000000000000000
[   69.170036] R13: 00000000ffffffff R14: 0000000000000001 R15: 0000000000200000
[   69.170382] FS:  00007fb8de189720(0000) GS:ffff88001de00000(0000) knlGS:0000000000000000
[   69.170794] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   69.171094] CR2: 00007fb8dd59237c CR3: 000000081a790000 CR4: 00000000000006f0
[   69.171439] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   69.171784] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[   69.172130] Process smartctl (pid: 1206, threadinfo ffff88081c0ea000, task ffff88081a760000)
[   69.194513] Stack:
[   69.205788]  0000000000000034 00000002817e3390 0000000000000000 ffff88081c0ebe00
[   69.217739] <0> 0000000000000000 000000000003bffc 0000000000000000 0000000000000000
[   69.241250] <0> 0000000000000000 00000000ffffffff ffff88081c5b4080 ffff88081c0ebe00
[   69.277310] Call Trace:
[   69.289278]  [<ffffffff812c52ac>] swiotlb_alloc_coherent+0xec/0x130
[   69.301118]  [<ffffffff81038b31>] x86_swiotlb_alloc_coherent+0x61/0x70
[   69.313045]  [<ffffffffa002d0ce>] megasas_mgmt_fw_ioctl+0x1ae/0x690 [megaraid_sas]
[   69.336399]  [<ffffffffa002d748>] megasas_mgmt_ioctl_fw+0x198/0x240 [megaraid_sas]
[   69.359346]  [<ffffffffa002f695>] megasas_mgmt_ioctl+0x35/0x50 [megaraid_sas]
[   69.370902]  [<ffffffff81153b12>] vfs_ioctl+0x22/0xa0
[   69.382322]  [<ffffffff8115da2a>] ? alloc_fd+0x10a/0x150
[   69.393622]  [<ffffffff81153cb1>] do_vfs_ioctl+0x81/0x410
[   69.404696]  [<ffffffff8155cc13>] ? do_page_fault+0x153/0x3b0
[   69.415761]  [<ffffffff811540c1>] sys_ioctl+0x81/0xa0
[   69.426640]  [<ffffffff810121b2>] system_call_fastpath+0x16/0x1b
[   69.437491] Code: fe ff ff 48 8b 3d 74 38 76 00 41 bf 00 00 20 00 e8 51 f5 d7 ff 83 e0 ff 48 05 ff 07 00 00 48 c1 e8 0b 48 89 45 c8 e9 13 fe ff ff <0f> 0b eb fe 0f 1f 80 00 00 00 00 55 48 89 e5 48 83 ec 20 4c 89
[   69.478216] RIP  [<ffffffff812c4dc5>] map_single+0x255/0x260
[   69.489668]  RSP <ffff88081c0ebc58>
[   69.500975] ---[ end trace 6a2181b634e2abc7 ]---

Reported-by: Bokhan Artem <aptem@ngs.ru>
Reported by: Marc-Christian Petersen <m.c.p@gmx.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: "Benz, Michael" <Michael.Benz@lsi.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-12 10:31:03 -06:00
Tejun Heo a684b8da35 [SCSI] remove flush_scheduled_work() usages
Simple conversions to drop flush_scheduled_work() usages in
drivers/scsi.  More involved ones will be done in separate patches.

* NCR5380, megaraid_sas: cancel_delayed_work() +
  flush_scheduled_work() -> cancel_delayed_work_sync().

* mpt2sas_scsih: drop unnecessary flush_scheduled_work().

* arcmsr_hba, ipr, pmcraid: flush the used work explicitly instead of
  using flush_scheduled_work().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2011-02-12 10:31:02 -06:00
Justin P. Mattock 8e572bab39 fix typos 'comamnd' -> 'command' in comments
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
2011-02-02 11:31:21 +01:00
adam radford 9c915a8c99 [SCSI] megaraid_sas: Add 9565/9285 specific code
This patch adds MegaRAID 9265/9285 (Device id 0x5b) specific code

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-22 23:26:53 -06:00
adam radford cd50ba8ede [SCSI] megaraid_sas: Add struct megasas_instance_template changes
The following patch adds struct megasas_instance_template changes to
the megaraid_sas driver, and changes all code to use the new instance
entries:

   irqreturn_t (*service_isr )(int irq, void *devp);
   void (*tasklet)(unsigned long);
   u32 (*init_adapter)(struct megasas_instance *);
   u32 (*build_and_issue_cmd) (struct megasas_instance *, struct scsi_cmnd *);
   void (*issue_dcmd) (struct megasas_instance *instance,
                              struct megasas_cmd *cmd);

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-22 23:26:52 -06:00
adam radford b6d5d8808b [SCSI] megaraid_sas: Use lowest memory bar for SR-IOV VF support
The following patch modifies the megaraid_sas driver to select the
lowest memory bar available so the driver will work in SR-IOV VF
environments where the memory bar mapping changes.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-22 23:26:52 -06:00
adam radford 80d9da98b4 [SCSI] megaraid_sas: Add MSI-X support and msix_disable module parameter
This patch adds MSI-X support and 'msix_disable' module parameter to
the megaraid_sas driver.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-22 23:26:51 -06:00
adam radford 3f1530c1e1 [SCSI] megaraid_sas: Update GPL headers.
This patch updates the GPL headers in megaraid_sas_base.c and megaraid_sas.h.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:29 -06:00
adam radford 0d49016bba [SCSI] megaraid_sas: Rename megaraid_sas.c to megaraid_sas_base.c
This patch renames megaraid_sas.c to megaraid_sas_base.c to facilitate
other files in the compile.

Signed-off-by: Adam Radford <aradford@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-12-21 12:37:29 -06:00
Renamed from drivers/scsi/megaraid/megaraid_sas.c (Browse further)