From: Amit Kushwaha
This patch cleanup warning reported by checkpatch.pl
WARNING: Possible unnecessary 'out of memory' message
With no available memory, a warn on message already gets printed
by page alloc apis and modified goto use if memory unallocated.
Signed-off-by: Amit Kushwaha
---
Change
> -Original Message-
> From: kushwah...@samsung.com [mailto:kushwah...@samsung.com]
> Sent: Monday, December 12, 2016 5:04 AM
> To: Don Brace; j...@linux.vnet.ibm.com
> Cc: linux-scsi@vger.kernel.org; akkushwaha9...@gmail.com;
> vidushi.k...@samsung.com
> Subject: [PATCH v2] scsi: hpsa: rem
On Mon, 2016-12-12 at 10:20 +0800, Wei Fang wrote:
> A race between scanning and fc_remote_port_delete() may result in a
> permanent stop if the device gets blocked before scsi_sysfs_add_sdev()
> and unblocked after. The reason is that blocking a device sets both
> the SDEV_BLOCKED state and the Q
On 7.12.2016 00:00, Sasikumar Chandrasekaran wrote:
> Detect sequential IO streams and pass those IOs directly to FW.
>
> This patch is depending on patch 3
>
> Signed-off-by: Sasikumar Chandrasekaran
> ---
> drivers/scsi/megaraid/megaraid_sas.h| 5 +-
> drivers/scsi/megaraid/megaraid_s
On Mon, 2016-12-12 at 11:23 -0500, Ewan D. Milne wrote:
> On Mon, 2016-12-12 at 10:20 +0800, Wei Fang wrote:
> > A race between scanning and fc_remote_port_delete() may result in a
> > permanent stop if the device gets blocked before
> > scsi_sysfs_add_sdev()
> > and unblocked after. The reason is
This patch is allowing only ROM mailbox command which are
necessary to initialize chip after a reset has been issued.
In a target environment, there could be a user space daemon
which can issue statistics and other management mailbox command
which are non-critical. This patch will timeout non criti
Hi Martin,
Please consider this revised series for inclusion into scsi-misc.
This series has incorporated partial changes based on review comments
from Christoph and Hannes.
Changes from v4 -> v5
o Dropped patch addressing mailbox starvation from current series.
We'll work on alternate mech
From: Michael Hernandez
Replaces the old pci_enable_msi[x]* and pci_disable_msi[x] calls.
Signed-off-by: Michael Hernandez
Signed-off-by: Himanshu Madhani
---
drivers/scsi/qla2xxx/qla_def.h | 2 +-
drivers/scsi/qla2xxx/qla_isr.c | 89 --
drivers/scsi/q
From: Michael Hernandez
Replaced existing multiple queue functionality with framework
that allows for the creation of pairs of request and response queues,
either at start of day or dynamically.
Queue pair creation depend on module parameter "ql2xmqsupport",
which need to be enabled to create qu
From: Michael Hernandez
Tell the SCSI layer how many hardware queues we have based on the number
of max queue pairs created. The number of max queue pairs created will
depend on number of MSI-X vector count.
This feature can be turned on via CONFIG_SCSI_MQ_DEFAULT or passing
scsi_mod.use_blk_mq=
From: Quinn Tran
- Fix race condition between dpc_thread accessing Multiqueue resources
and qla2x00_remove_one thread trying to free resource.
- Fix out of order free for Multiqueue resources. Also, Multiqueue
interrupts needs a workqueue. Interrupt needed to stop before
the wq can be destr
Hi Nic,
On 12/6/16, 12:30 PM, "Himanshu Madhani" wrote:
>Hi Nic,
>
>Please consider this series for target-pending. This series is based on
>scsi-misc series that was submitted earlier today.
>
>Here's link for that series
> http://marc.info/?l=linux-scsi&m=148105128210090&w=2
>
>This serie
Nicholas,
After lots of set backs and having to give up trying to get kernel
dumps on our "production" systems, I've been able to work out the
issues we had with kdump and replicate the issue on my dev boxes. I
have dumps from 4.4.30 and 4.9-rc8 (makedumpfile would not dump, so it
is a straight co
From: Adam Manzanares
This patch adds support for request iopriority handling in the
mpt3sas layer. This works only when a ATA device is behind the
SATL. The ATA device also has to indicate that it supports
command priorities in the identify information that is pulled from
the SATL.
This patch d
This patch series adds following things:
- ftrace support to trace important events in UFS driver.
- debug dumps following failures to ease the debugging
- sysfs node to control clock gating, clock scaling and PM
- few fixes
Dolev Raviv (3):
scsi: ufs: dump debug info during failures
scsi:
From: Dolev Raviv
Inserts driver dumps for UFS Host Controller registers, Transfer Requests
and Task Management Requests.
The dumps will occur on driver initialization failure, ufshcd_abort() and
on error handling path.
Signed-off-by: Dolev Raviv
Signed-off-by: Subhash Jadavani
---
drivers/sc
This change adds the ftrace support for following:
1. UFS initialization time
2. Clock gating states
3. Clock scaling states
4. Power management APIs latency
5. BKOPs enable/disable
Usage:
echo 1 > /sys/kernel/debug/tracing/events/ufs/enable
cat /sys/kernel/debug/tracing/trace_pipe
From: Dolev Raviv
When a command to a W-LU is timed out via scsi, error handling
will treat it as any other LU and send commands such as
START_STOP with wrong format or task abort. Those commands are
illegal for W-LU according to the UFS spec.
To solve it, when an error is recognized those steps
From: Sahitya Tummala
Provide an option to enable/disable clock gating during runtime.
Write 1 or 0 to "clkgate_enable" sysfs node to enable/disable
clock gating.
Signed-off-by: Sahitya Tummala
Signed-off-by: Subhash Jadavani
---
drivers/scsi/ufs/ufshcd.c | 48
This patch provides the sysfs attribute to choose the power management
level for UFS runtime and system suspend.
Reviewed-by: Sujit Reddy Thumma
Signed-off-by: Subhash Jadavani
---
drivers/scsi/ufs/ufshcd.c | 122 ++
drivers/scsi/ufs/ufshcd.h | 2 +
UFS device and link can be put in multiple different low power modes hence
UFS driver supports multiple different low power modes. By default UFS
driver selects the default (optimal) low power mode (which gives moderate
power savings and have relatively less enter and exit latencies) but
we might h
From: Sahitya Tummala
Provide an option to enable/disable clock scaling during runtime.
Write 1/0 to "clkscale_enable" sysfs node to enable/disable clock
scaling.
Signed-off-by: Sahitya Tummala
Signed-off-by: Subhash Jadavani
---
drivers/scsi/ufs/ufshcd.c | 95
UFS device requires to perform bkops (back ground operations) periodically
but host can control (via auto-bkops parameter of device) when device can
perform bkops based on its performance requirements. In general, host
would like to enable the device's auto-bkops only when it's not doing any
regula
Immediately after successful UFS link startup, UFS link power mode would
be in PWM-G1, 1-lane, SLOW-AUTO mode. But currently we are doing few
of the DME local/peer attributes access before setting the "hba->pwr_info"
to default power mode. If we are doing link startup as part of error
recovery then
From: Dolev Raviv
Errors such as UIC error, illegal OCS values, and others may require
more information for debugging. Such information could be hibern8 events,
events sequences, recoverable errors, error history, and more.
This patch improves tracking of important errors and events in debug leve
This patch adds the profiling support for some of the time critical
operations like hibern8 enter/exit, clock gating & clock scaling.
Reviewed-by: Venkat Gopalakrishnan
Signed-off-by: Subhash Jadavani
---
drivers/scsi/ufs/ufshcd.c | 24
include/trace/events/ufs.h | 40
From: Lee Susman
Use the ftrace infrastructure to conditionally trace ufs command events.
New trace event is created, which samples the following ufs command data:
- device name
- optional identification string
- task tag
- doorbell register
- number of transfer bytes
- interrupt status register
Hi, James, Ewan,
On 2016/12/13 0:43, James Bottomley wrote:
> On Mon, 2016-12-12 at 11:23 -0500, Ewan D. Milne wrote:
>> On Mon, 2016-12-12 at 10:20 +0800, Wei Fang wrote:
>>> A race between scanning and fc_remote_port_delete() may result in a
>>> permanent stop if the device gets blocked before
>
On Mon, 2016-12-12 at 16:56 -0800, Subhash Jadavani wrote:
> Errors such as UIC error, illegal OCS values, and others may require
> more information for debugging. Such information could be hibern8 events,
> events sequences, recoverable errors, error history, and more.
[]
> diff --git a/drivers/sc
A race between scanning and fc_remote_port_delete() may result in a
permanent stop if the device gets blocked before scsi_sysfs_add_sdev()
and unblocked after. The reason is that blocking a device sets both
the SDEV_BLOCKED state and the QUEUE_FLAG_STOPPED. However,
scsi_sysfs_add_sdev() uncondit
On 2016-12-12 17:19, Joe Perches wrote:
On Mon, 2016-12-12 at 16:56 -0800, Subhash Jadavani wrote:
Errors such as UIC error, illegal OCS values, and others may require
more information for debugging. Such information could be hibern8
events,
events sequences, recoverable errors, error history,
Hi all,
I would like to raise some concern over how the SCSI disk driver
handles Caching Mode Page and DPOFUA bit.
The first thing is what the driver assumes when no Caching Mode Page
is found. By default it "assumes write through", which means it
assumes that the disk has no Caching Mode Page be
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