Commit graph

546427 commits

Author SHA1 Message Date
Vineet Gupta
fb7c572551 ARC: perf: cap the number of counters to hardware max of 32
The number of counters in PCT can never be more than 32 (while
countable conditions could be 100+) for both ARCompact and ARCv2

And while at it update copyright dates.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-08-27 14:57:03 +05:30
Ard Biesheuvel
674c242c93 arm64: flush FP/SIMD state correctly after execve()
When a task calls execve(), its FP/SIMD state is flushed so that
none of the original program state is observeable by the incoming
program.

However, since this flushing consists of setting the in-memory copy
of the FP/SIMD state to all zeroes, the CPU field is set to CPU 0 as
well, which indicates to the lazy FP/SIMD preserve/restore code that
the FP/SIMD state does not need to be reread from memory if the task
is scheduled again on CPU 0 without any other tasks having entered
userland (or used the FP/SIMD in kernel mode) on the same CPU in the
mean time. If this happens, the FP/SIMD state of the old program will
still be present in the registers when the new program starts.

So set the CPU field to the invalid value of NR_CPUS when performing
the flush, by calling fpsimd_flush_task_state().

Cc: <stable@vger.kernel.org>
Reported-by: Chunyan Zhang <chunyan.zhang@spreadtrum.com>
Reported-by: Janet Liu <janet.liu@spreadtrum.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-08-27 09:55:26 +01:00
Alexander Kuleshov
e4ec735108 s390/jump_label: Use %*ph to print small buffers
printk() supports %*ph format specifier for printing a small buffers,
let's use it intead of %02x %02x...

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-08-27 09:39:04 +02:00
Dan Carpenter
9f55bca2b8 aic94xx: set an error code on failure
We recently did some cleanup here and now the static checkers notice
that there is a missing error code when ioremap() fails.  Let's set it
to -ENOMEM.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:37 -07:00
K. Y. Srinivasan
111f2d15b5 storvsc: Set the error code correctly in failure conditions
In the function storvsc_channel_init(), error code was not getting
set correctly in some of the failure cases. Fix this issue.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:36 -07:00
Keith Mange
b95f5be090 storvsc: Allow write_same when host is windows 10
Allow WRITE_SAME for Windows10 and above hosts.

Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:36 -07:00
Keith Mange
e6c4bc6684 storvsc: use storage protocol version to determine storage capabilities
Use storage protocol version instead of vmbus protocol
version when determining storage capabilities.

Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:35 -07:00
Keith Mange
cb11feada9 storvsc: use correct defaults for values determined by protocol negotiation
Use correct defaults for values determined by protocol negotiation,
instead of resetting them with every scsi controller.

Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:35 -07:00
Keith Mange
1a3631081d storvsc: Untangle the storage protocol negotiation from the vmbus protocol negotiation.
Currently we are making decisions based on vmbus protocol versions
that have been negotiated; use storage potocol versions instead.

[jejb: fold ARRAY_SIZE conversion suggested by Johannes Thumshirn
<jthumshirn@suse.de>
make vmstor_protocol static]
Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:34 -07:00
Keith Mange
2492fd7a60 storvsc: Use a single value to track protocol versions
Use a single value to track protocol versions to simplify
comparisons and to be consistent with vmbus version tracking.

Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:34 -07:00
Keith Mange
6ee5c61535 storvsc: Rather than look for sets of specific protocol versions, make decisions based on ranges.
Rather than look for sets of specific protocol versions,
make decisions based on ranges. This will be safer and require fewer changes
going forward as we add more storage protocol versions.

Tested-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Keith Mange <keith.mange@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 22:41:33 -07:00
Daniel Axtens
9d8e27673c cxl: Remove racy attempt to force EEH invocation in reset
cxl_reset currently PERSTs the slot, and then repeatedly tries to
read MMIO space in order to kick off EEH.

There are 2 problems with this: it's unnecessary, and it's racy.

It's unnecessary because the PERST will bring down the PHB link.
That will be picked up by the CAPP, which will send out an HMI.
Skiboot, noticing an HMI from the CAPP, will send an OPAL
notification to the kernel, which will trigger EEH recovery.

It's also racy: the EEH recovery triggered by the CAPP will
eventually cause the MMIO space to have its mapping invalidated
and the pointer NULLed out. This races with our attempt to read
the MMIO space. This is causing OOPSes in testing.

Simply drop all the attempts to force EEH detection, and trust
that Skiboot will send the notification and that we'll act on it.
The Skiboot code to send the EEH notification has been in Skiboot
for as long as CAPP recovery has been supported, so we don't need
to worry about breaking obscure setups with ancient firmware.

Cc: Ryan Grimm <grimm@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org
Fixes: 62fa19d4b4 ("cxl: Add ability to reset the card")
Signed-off-by: Daniel Axtens <dja@axtens.net>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-08-27 13:51:36 +10:00
Vaibhav Jain
a6897f3966 cxl: Release irqs if memory allocation fails
This minor patch plugs a potential irq leak in case of a memory
allocation failure inside function the afu_allocate_irqs. Presently the
irqs allocated to the context gets leaked if allocation of either
one of context irq_bitmap or irq_names fails.

Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-08-27 13:51:18 +10:00
Dave Airlie
d7b273685f Merge branch 'drm-dwhdmi-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-next
Here are some development updates for the Synopsis Designware HDMI driver,
which clean up some of the code, and start preparing to add audio support
to the driver.  This series of patches are based on a couple of dependent
commits from the ALSA tree.

Briefly, the updates are:
- move comments which should have moved with the phy values to the IMX
  part of the driver.
- clean up the phy configuration: to all lookups before starting to
  program the phy.
- clean up the HDMI clock regenerator code
- use the drm_hdmi_avi_infoframe_from_display_mode() helper which allows
  the code to be subsequently simplified
- remove the unused 'regmap' pointer in struct dw_hdmi
- use the bridge drm device rather than the connector (we're the bridge
  code)
- remove private hsync/vsync/interlaced flags, getting them from the
  DRM mode structure instead.
- implement interface functions to support audio - setting the audio
  sample rate, and enabling the audio clocks.
- removal of broken pixel repetition support
- cleanup DVI vs HDMI sink handling
- enable audio only if connected device supports audio
- avoid double-enabling bridge in the sink path (once in mode_set, and
  again in commit)
- rename mis-named dw_hdmi_phy_enable_power()
- fix bridge enable/disable handing, so a plug-in event doesn't
  reconfigure the bridge if DRM has disabled the output
- fix from Vladimir Zapolskiy for the I2CM_ADDRESS macro name

These are primerily preparitory patches for the AHB audio driver and
the I2S audio driver (from Rockchip) for this IP.

* 'drm-dwhdmi-devel' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm: bridge/dw_hdmi: fix register I2CM_ADDRESS register name
  drm: bridge/dw_hdmi: fix phy enable/disable handling
  drm: bridge/dw_hdmi: rename dw_hdmi_phy_enable_power()
  drm: bridge/dw_hdmi: avoid enabling interface in mode_set
  drm: bridge/dw_hdmi: enable audio only if sink supports audio
  drm: bridge/dw_hdmi: clean up HDMI vs DVI mode handling
  drm: bridge/dw_hdmi: don't support any pixel doubled modes
  drm: bridge/dw_hdmi: remove pixel repetition setting for all VICs
  drm: bridge/dw_hdmi: introduce interfaces to enable and disable audio
  drm: bridge/dw_hdmi: introduce interface to setting sample rate
  drm: bridge/dw_hdmi: remove mhsyncpolarity/mvsyncpolarity/minterlaced
  drm: bridge/dw_hdmi: use our own drm_device
  drm: bridge/dw_hdmi: remove unused 'regmap' struct member
  drm: bridge/dw_hdmi: simplify hdmi_config_AVI() a little
  drm: bridge/dw_hdmi: use drm_hdmi_avi_infoframe_from_display_mode()
  drm: bridge/dw_hdmi: clean up hdmi_set_clk_regenerator()
  drm: bridge/dw_hdmi: clean up phy configuration
  drm: imx/dw_hdmi: move phy comments
  drm/edid: add function to help find SADs
2015-08-27 13:01:57 +10:00
Dave Airlie
31607793ee Merge tag 'vmwgfx-next-15-08-21' of git://people.freedesktop.org/~thomash/linux into drm-next
Pull request of 15-08-21

The third pull request for 4.3. Contains two fixes for regressions introduced
with previous pull requests.

* tag 'vmwgfx-next-15-08-21' of git://people.freedesktop.org/~thomash/linux:
  drm/vmwgfx: Remove duplicate ttm_bo_device_release
  drm/vmwgfx: Fix a circular locking dependency in the fbdev code
2015-08-27 13:01:23 +10:00
Dave Airlie
40b2dffbcc Merge branch 'drm-next-4.3' of git://people.freedesktop.org/~agd5f/linux into drm-next
- DP fixes for radeon and amdgpu
- IH ring fix for tonga and fiji
- Lots of GPU scheduler fixes
- Misc additional fixes

* 'drm-next-4.3' of git://people.freedesktop.org/~agd5f/linux: (42 commits)
  drm/amdgpu: fix wait queue handling in the scheduler
  drm/amdgpu: remove extra parameters from scheduler callbacks
  drm/amdgpu: wake up scheduler only when neccessary
  drm/amdgpu: remove entity idle timeout v2
  drm/amdgpu: fix postclose order
  drm/amdgpu: use IB for copy buffer of eviction
  drm/amdgpu: adjust the judgement of removing fence callback
  drm/amdgpu: fix no sync_wait in copy_buffer
  drm/amdgpu: fix last_vm_update fence is not effetive for sched fence
  drm/amdgpu: add priv data to sched
  drm/amdgpu: add owner for sched fence
  drm/amdgpu: remove entity reference from sched fence
  drm/amdgpu: fix and cleanup amd_sched_entity_push_job
  drm/amdgpu: remove amdgpu_bo_list_clone
  drm/amdgpu: remove the context from amdgpu_job
  drm/amdgpu: remove unused parameters to amd_sched_create
  drm/amdgpu: remove sched_lock
  drm/amdgpu: remove prepare_job callback
  drm/amdgpu: cleanup a scheduler function name
  drm/amdgpu: reorder scheduler functions
  ...
2015-08-27 13:00:28 +10:00
Matthew R. Ochs
89576205de cxlflash: Remove unused variable from queuecommand
The queuecommand routine has a local dev pointer used for the
dev_* prints. The two prints that currently exist are tucked
under a debug define and thus can be left out. Use the actual
location instead of a local to avoid this warning.

This patch is intended to be applied after the "CXL Flash Error
Recovery and Superpipe" series.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:08:47 -07:00
Dan Carpenter
4da74db0d9 cxlflash: shift wrapping bug in afu_link_reset()
"port_sel" is a u64 so the shifting should also be a 64 bit shift.

Fixes: c21e0bbfc4 ('cxlflash: Base support for IBM CXL Flash Adapter')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:07:37 -07:00
Dan Carpenter
46c6d45d78 cxlflash: off by one bug in cxlflash_show_port_status()
The > should be >= or we read one element past the end of the array.

Fixes: c21e0bbfc4 ('cxlflash: Base support for IBM CXL Flash Adapter')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:06:31 -07:00
Matthew R. Ochs
2cb79266d6 cxlflash: Virtual LUN support
Add support for physical LUN segmentation (virtual LUNs) to device
driver supporting the IBM CXL Flash adapter. This patch allows user
space applications to virtually segment a physical LUN into N virtual
LUNs, taking advantage of the translation features provided by this
adapter.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:05:39 -07:00
Matthew R. Ochs
65be2c79ac cxlflash: Superpipe support
Add superpipe supporting infrastructure to device driver for the IBM CXL
Flash adapter. This patch allows userspace applications to take advantage
of the accelerated I/O features that this adapter provides and bypass the
traditional filesystem stack.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:04:37 -07:00
Matthew R. Ochs
5cdac81a87 cxlflash: Base error recovery support
Introduce support for enhanced I/O error handling.

A device state is added to track 3 possible states of the device:

Normal - the device is operating normally and is fully operational

Limbo - the device is in a reset/recovery scenario and its operational
        status is paused

Failed/terminating - the device has either failed to be reset/recovered
                     or is being terminated (removed); it is no longer
                     operational

All operations are allowed when the device is operating normally. When the
device transitions to limbo state, I/O must be paused. To help accomplish
this, a wait queue is introduced where existing and new threads can wait
until the device is no longer in limbo. When coming out of limbo, threads
need to check the state and error out gracefully when encountering the
failed state. When the device transitions to the failed/terminating state,
normal operations are no longer allowed. Only specially designated
operations related to graceful cleanup are permitted.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Daniel Axtens <dja@axtens.net>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 18:03:47 -07:00
Himanshu Madhani
ef2a388dfc qla2xxx: Update driver version to 8.07.00.26-k
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:51:01 -07:00
Sawan Chandak
2b48992f65 qla2xxx: Add pci device id 0x2261.
Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:50:16 -07:00
Arun Easi
a1d0285ecb qla2xxx: Fix missing device login retries.
On certain conditions, login failures will just invoke
qla2x00_mark_device_lost() with the intend to do login again;
but if login_retry has been set already, that would fail to set the
relogin needed flag which is required to wakeup the DPC to retry.

Signed-off-by: Arun Easi <arun.easi@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:49:23 -07:00
Himanshu Madhani
63e322aaa6 qla2xxx: do not clear slot in outstanding cmd array
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:48:44 -07:00
Chad Dupuis
96219424f2 qla2xxx: Remove decrement of sp reference count in abort handler.
Fix for memory leak when command is not found by firmware due to
mismatch in sp reference count.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:47:45 -07:00
Sawan Chandak
03aa868c1b qla2xxx: Add support to show MPI and PEP FW version for ISP27xx.
Signed-off-by: Sawan Chandak <sawan.chandak@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:46:52 -07:00
Chad Dupuis
fd49a540ea qla2xxx: Do not reset ISP for error entry with an out of range handle.
Instead of resetting the adapter wait for the login to timeout
and retry. Resetting the adapter can cause extended path recovery
times.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:46:05 -07:00
Chad Dupuis
c7bc4cae0d qla2xxx: Do not reset adapter if SRB handle is in range.
If an SRB is NULL but the handle is in range just drop the
command instead of also resetting the adapter. If the handle
is in range then the command was valid at some point and may
have been aborted. Resetting the adapter can lead to extended
recovery times in this case.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:45:27 -07:00
Hiral Patel
8fbdac8c70 qla2xxx: Do not crash system for sp ref count zero
Aovid crashing the system in the scenario where firmware
just completes the command and it can not find the command
during abort mailbox processing. This scenario can lead to
sp reference counter being zero. Instead of crashing the
system, use WARN_ON to print warning in log file.

Signed-off-by: Hiral Patel <hiral.patel@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:44:45 -07:00
Saurav Kashyap
d6b9b42b49 qla2xxx: Add adapter checks for FAWWN functionality.
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:43:59 -07:00
Joe Carnuccio
8dd7e3a559 qla2xxx: Pause risc before manipulating risc semaphore.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:43:12 -07:00
Joe Carnuccio
cc79076439 qla2xxx: Use ssdid to gate semaphore manipulation.
Execute qla25xx_manipulate_risc_semaphore() only for
ssdid 0x0175 and 0x0240.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:40:44 -07:00
Joe Carnuccio
17cac3a175 qla2xxx: Handle AEN8014 incoming port logout.
When we get logged out, mark the port lost and set dpc flag for relogin.

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:39:16 -07:00
Alexei Starovoitov
1dd34b5ad8 bpf: fix bpf_skb_set_tunnel_key() helper
Make sure to indicate to tunnel driver that key.tun_id is set,
otherwise gre won't recognize the metadata.

Fixes: d3aa45ce6b ("bpf: add helpers to access tunnel metadata")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-26 17:38:13 -07:00
Joe Carnuccio
f299c7c2ab qla2xxx: Add serdes register read/write support for ISP25xx.
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:37:00 -07:00
jiang.biao2@zte.com.cn
709c75b5a2 scsi_error: should not get sense for timeout IO in scsi error handler
scsi_error: should not get sense for timeout IO in scsi error handler

When an IO timeout occurs, the IO will be aborted in
scsi_abort_command() and SCSI_EH_ABORT_SCHEDULED will be set. Because
of that, the SCSI_EH_CANCEL_CMD will be clear in scsi_eh_scmd_add().
So when scsi error handler starts, it will get sense for this
timeout IO and the scmd of the IO request will be reused. In that
case, the scmd may be double released when racing with io_done(),
which will result in crash.
SO SCSI_EH_ABORT_SCHEDULED should also be checked when getting sense.
The bug maybe reproduced when the link between host and disk is
unstable.

Signed-off-by: Jiang Biao <jiang.biao2@zte.com.cn>
Signed-off-by: Long Chun <long.chun@zte.com.cn>
Reviewed-by: Tan Hu <tan.hu@zte.com.cn>
Reviewed-by: Chen Donghai <chen.donghai@zte.com.cn>
Reviewed-by: Cai Qu <cai.qu@zte.com.cn>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:29:49 -07:00
Viswas G
1cd129918f pm80xx: Bump pm80xx driver version to 0.1.38
Bump pm80xx driver version to 0.1.38.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:19:05 -07:00
Viswas G
27ecfa5e79 pm80xx: Handling Invalid SSP Response frame
The request has to be retried incase if the length of the SSP
Response IU is invalid.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:18:31 -07:00
Viswas G
8414cd8057 pm80xx: Add PORT RECOVERY TIMEOUT support
PORT RECOVERY TIMEOUT is the maximum time between the controller's
detection of the PHY down until the receipt of the ID_Frame (from the
same remote SAS port). If the time expires before the ID_FRAME is
received, the port is considered INVALID and can be removed. The
IOP_EVENT_PORT_RECOVERY_TIMER_TMO event is reported following the
IOP_EVENT_ PHY_DOWN event when the PHY/port does not recover after
Port Recovery Time.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:17:52 -07:00
Viswas G
3b77894b2c pm80xx: Remove unnecessary phy disconnect while link error
If the link error happens, we don't need to disconnect the phy,
which will remove the drive. Instead acknowledging the controller
and logging the error will be enough.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:17:05 -07:00
Viswas G
3b700e3411 pm80xx: Fix for Incorrect DMA Unmapping of SG List
In pm8001_ccb_task_free(), the dma unmapping is done based on
ccb->n_elem value. This should be initialized to zero in the
task_abort(). Otherwise, pm8001_ccb_task_free() will try for
dma_unmap_sg() which is invalid for task abort and can lead to
kernel crash.

Changes From V1:
None

Signed-off-by: Viswas G <Viswas.G@pmcs.com>

Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:11:01 -07:00
Viswas G
842784e0d1 pm80xx: Update For Thermal Page Code
Thermal page code has been changed to 7 for the 12G controllers.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:10:48 -07:00
Viswas G
3a1ae96774 pm80xx: Corrected device state changes in I_T_Nexus_Reset.
In Nexus reset the device state request are not needed.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Acked-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:07:39 -07:00
Viswas G
b093d59036 pm80xx: Updated link rate
Updated 12G linkrate to libsas.

Signed-off-by: Viswas G <Viswas.G@pmcs.com>
Reviewed-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:06:26 -07:00
Jack Wang
d32477e2a7 MAINTAINERS: update email for pm8001
Company has policy to use company email address, so update
my email address to company address.

Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 17:06:06 -07:00
Sebastian Herbszt
b103918a5f lpfc: Use && instead of & for boolean expression
Use logical instead of bitwise AND.

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Reviewed-by: James Smart <james.smart@avagotech.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 16:35:07 -07:00
Dilip Kumar Uppugandla
5155ce5f83 qla2xxx: Return the fabric command state for non-task management requests
Invoking get_cmd_state for qla2xxx always returns 0. Instead change it
to return the actual fabric state from qla_tgt_cmd. This will help with
debugging.

Signed-off-by: Dilip Kumar Uppugandla <dilip@purestorage.com>
Signed-off-by: Spencer Baugh <sbaugh@catern.com>
Acked-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 16:31:58 -07:00
Don Brace
2d041306b6 hpsa: fix rmmod issues
The driver is calling hpsa_shutdown before calling scsi_remove_host.
hpsa_shutdown is disabling interrupts.

scsi_remove_host can trigger I/O operations, such as
SYNCHRONIZE CACHE when multipath is enabled which hang the system.

Call scsi_remove_host before calling hpsa_shutdown.

Reviewed-by: Kevin Barnett <kevin.barnett@pmcs.com>
Reviewed-by: Scott Teel <scott.teel@pmcs.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Don Brace <don.brace@pmcs.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
2015-08-26 16:29:49 -07:00