28 Apr, 2015
1 commit
-
This works around a issue with qnap iscsi targets not handling large IOs
very well.The target returns:
VPD INQUIRY: Block limits page (SBC)
Maximum compare and write length: 1 blocks
Optimal transfer length granularity: 1 blocks
Maximum transfer length: 4294967295 blocks
Optimal transfer length: 4294967295 blocks
Maximum prefetch, xdread, xdwrite transfer length: 0 blocks
Maximum unmap LBA count: 8388607
Maximum unmap block descriptor count: 1
Optimal unmap granularity: 16383
Unmap granularity alignment valid: 0
Unmap granularity alignment: 0
Maximum write same length: 0xffffffff blocks
Maximum atomic transfer length: 0
Atomic alignment: 0
Atomic transfer length granularity: 0and it is *sometimes* able to handle at least one IO of size up to 8 MB. We
have seen in traces where it will sometimes work, but other times it
looks like it fails and it looks like it returns failures if we send
multiple large IOs sometimes. Also it looks like it can return 2 different
errors. It will sometimes send iscsi reject errors indicating out of
resources or it will send invalid cdb illegal requests check conditions.
And then when it sends iscsi rejects it does not seem to handle retries
when there are command sequence holes, so I could not just add code to
try and gracefully handle that error code.The problem is that we do not have a good contact for the company,
so we are not able to determine under what conditions it returns
which error and why it sometimes works.So, this patch just adds a new black list flag to set targets like this to
the old max safe sectors of 1024. The max_hw_sectors changes added in 3.19
caused this regression, so I also ccing stable.Reported-by: Christian Hesse
Signed-off-by: Mike Christie
Cc: stable@vger.kernel.org
Reviewed-by: Christoph Hellwig
Signed-off-by: James Bottomley
17 Apr, 2015
1 commit
-
Pull SCSI updates from James Bottomley:
"This is the usual grab bag of driver updates (lpfc, qla2xxx, storvsc,
aacraid, ipr) plus an assortment of minor updates. There's also a
major update to aic1542 which moves the driver into this millenium"* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (106 commits)
change SCSI Maintainer email
sd, mmc, virtio_blk, string_helpers: fix block size units
ufs: add support to allow non standard behaviours (quirks)
ufs-qcom: save controller revision info in internal structure
qla2xxx: Update driver version to 8.07.00.18-k
qla2xxx: Restore physical port WWPN only, when port down detected for FA-WWPN port.
qla2xxx: Fix virtual port configuration, when switch port is disabled/enabled.
qla2xxx: Prevent multiple firmware dump collection for ISP27XX.
qla2xxx: Disable Interrupt handshake for ISP27XX.
qla2xxx: Add debugging info for MBX timeout.
qla2xxx: Add serdes read/write support for ISP27XX
qla2xxx: Add udev notification to save fw dump for ISP27XX
qla2xxx: Add message for sucessful FW dump collected for ISP27XX.
qla2xxx: Add support to load firmware from file for ISP 26XX/27XX.
qla2xxx: Fix beacon blink for ISP27XX.
qla2xxx: Increase the wait time for firmware to be ready for P3P.
qla2xxx: Fix crash due to wrong casting of reg for ISP27XX.
qla2xxx: Fix warnings reported by static checker.
lpfc: Update version to 10.5.0.0 for upstream patch set
lpfc: Update copyright to 2015
...
10 Apr, 2015
1 commit
-
Signed-off-by: James Smart
Reviewed-by: Hannes Reinecke
Reviewed-by: Ewan D. Milne
Signed-off-by: James Bottomley
27 Mar, 2015
1 commit
-
If NCQ autosense or the sense data reporting feature is enabled
the LBA of the offending command should be stored in the sense
data 'information' field.Signed-off-by: Hannes Reinecke
Signed-off-by: Tejun Heo
13 Feb, 2015
1 commit
-
Pull core block IO changes from Jens Axboe:
"This contains:- A series from Christoph that cleans up and refactors various parts
of the REQ_BLOCK_PC handling. Contributions in that series from
Dongsu Park and Kent Overstreet as well.- CFQ:
- A bug fix for cfq for realtime IO scheduling from Jeff Moyer.
- A stable patch fixing a potential crash in CFQ in OOM
situations. From Konstantin Khlebnikov.- blk-mq:
- Add support for tag allocation policies, from Shaohua. This is
a prep patch enabling libata (and other SCSI parts) to use the
blk-mq tagging, instead of rolling their own.
- Various little tweaks from Keith and Mike, in preparation for
DM blk-mq support.
- Minor little fixes or tweaks from me.
- A double free error fix from Tony Battersby.- The partition 4k issue fixes from Matthew and Boaz.
- Add support for zero+unprovision for blkdev_issue_zeroout() from
Martin"* 'for-3.20/core' of git://git.kernel.dk/linux-block: (27 commits)
block: remove unused function blk_bio_map_sg
block: handle the null_mapped flag correctly in blk_rq_map_user_iov
blk-mq: fix double-free in error path
block: prevent request-to-request merging with gaps if not allowed
blk-mq: make blk_mq_run_queues() static
dm: fix multipath regression due to initializing wrong request
cfq-iosched: handle failure of cfq group allocation
block: Quiesce zeroout wrapper
block: rewrite and split __bio_copy_iov()
block: merge __bio_map_user_iov into bio_map_user_iov
block: merge __bio_map_kern into bio_map_kern
block: pass iov_iter to the BLOCK_PC mapping functions
block: add a helper to free bio bounce buffer pages
block: use blk_rq_map_user_iov to implement blk_rq_map_user
block: simplify bio_map_kern
block: mark blk-mq devices as stackable
block: keep established cmd_flags when cloning into a blk-mq request
block: add blk-mq support to blk_insert_cloned_request()
block: require blk_rq_prep_clone() be given an initialized clone request
blk-mq: add tag allocation policy
...
05 Feb, 2015
1 commit
-
dev_printk() is now a void function, so the related functions
scmd_printk() and sdev_prefix_printk() should be made void, too.Reported-by: Stephen Rothwell
Signed-off-by: Hannes Reinecke
Cc: Christoph Hellwig
Signed-off-by: James Bottomley
24 Jan, 2015
1 commit
-
The libata tag allocation is using a round-robin policy. Next patch will
make libata use block generic tag allocation, so let's add a policy to
tag allocation.Currently two policies: FIFO (default) and round-robin.
Cc: Jens Axboe
Cc: Tejun Heo
Cc: Christoph Hellwig
Signed-off-by: Shaohua Li
Signed-off-by: Jens Axboe
21 Jan, 2015
1 commit
-
Signed-off-by: Christoph Hellwig
Reviewed-by: James Bottomley
Reviewed-by: Ewan D. Milne
Reviewed-by: Hannes Reinecke
09 Jan, 2015
4 commits
-
Instead of having constants.c littered with ifdef statements we should
be moving dummy functions into the header and condintionally compile in
constants.c if selected. And update the Kconfig description to reflect
the actual size difference.Suggested-by: Christoph Hellwig
Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Hannes Reinecke
Signed-off-by: Christoph Hellwig -
Convert scsi_print_result() to use the per-cpu buffer for decoding the
command result and disposition.Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Hannes Reinecke
Signed-off-by: Christoph Hellwig -
Use an external buffer for __scsi_print_command() and move command
logging over to use the per-cpu logging buffer. With that we can
guarantee the command always will always be formatted in one line.
So we can even print out a variable length command correctly across
several lines. Finally rename __scsi_print_command() to
__scsi_format_comment() to better reflect the functionality.Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Hannes Reinecke
Signed-off-by: Christoph Hellwig -
Implement a per-cpu buffer for formatting messages to avoid line breaks
up under high load. This patch implements scmd_printk() and
sdev_prefix_printk() using the per-cpu buffer and makes sdev_printk() a
wrapper for sdev_prefix_printk().Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Hannes Reinecke
Signed-off-by: Christoph Hellwig
21 Dec, 2014
1 commit
-
Pull SCSI update from James Bottomley:
"This is a much shorter set of patches that were on the go but didn't
make it in to the early pull request for the merge window. It's
really a set of bug fixes plus some final cleanup work on the new tag
queue API"* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
storvsc: ring buffer failures may result in I/O freeze
ipr: set scsi_level correctly for disk arrays
ipr: add support for async scanning to speed up boot
scsi_debug: fix missing "break;" in SDEBUG_UA_CAPACITY_CHANGED case
scsi_debug: take sdebug_host_list_lock when changing capacity
scsi_debug: improve driver description in Kconfig
scsi_debug: fix compare and write errors
qla2xxx: fix race in handling rport deletion during recovery causes panic
scsi: blacklist RSOC for Microsoft iSCSI target devices
scsi: fix random memory corruption with scsi-mq + T10 PI
Revert "[SCSI] mpt3sas: Remove phys on topology change"
Revert "[SCSI] mpt2sas: Remove phys on topology change."
esas2r: Correct typos of "validate" in a comment
fc: FCP_PTA_SIMPLE is 0
ibmvfc: remove unused tag variable
scsi: remove MSG_*_TAG defines
scsi: remove scsi_set_tag_type
scsi: remove scsi_get_tag_type
scsi: never drop to untagged mode during queue ramp down
scsi: remove ->change_queue_type method
19 Dec, 2014
1 commit
-
Pull more ACPI and power management updates from Rafael Wysocki:
"These are regression fixes (leds-gpio, ACPI backlight driver,
operating performance points library, ACPI device enumeration
messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
PM), some cleanups in the operating performance points (OPP)
framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
minor intel_pstate driver changes, a new MAINTAINERS entry for it and
an ACPI fan driver change needed for better support of thermal
management in user space.Specifics:
- Fix a regression in leds-gpio introduced by a recent commit that
inadvertently changed the name of one of the properties used by the
driver (Fabio Estevam).- Fix a regression in the ACPI backlight driver introduced by a
recent fix that missed one special case that had to be taken into
account (Aaron Lu).- Drop the level of some new kernel messages from the ACPI core
introduced by a recent commit to KERN_DEBUG which they should have
used from the start and drop some other unuseful KERN_ERR messages
printed by ACPI (Rafael J Wysocki).- Revert an incorrect commit modifying the cpupower tool (Prarit
Bhargava).- Fix two regressions introduced by recent commits in the OPP library
and clean up some existing minor issues in that code (Viresh
Kumar).- Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
tree (or drop it where that can be done) in order to make it
possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
Hansson, Ludovic Desroches).There will be one more "CONFIG_PM_RUNTIME removal" batch after this
one, because some new uses of it have been introduced during the
current merge window, but that should be sufficient to finally get
rid of it.- Make the ACPI EC driver more robust against race conditions related
to GPE handler installation failures (Lv Zheng).- Prevent the ACPI device PM core code from attempting to disable
GPEs that it has not enabled which confuses ACPICA and makes it
report errors unnecessarily (Rafael J Wysocki).- Add a "force" command line switch to the intel_pstate driver to
make it possible to override the blacklisting of some systems in
that driver if needed (Ethan Zhao).- Improve intel_pstate code documentation and add a MAINTAINERS entry
for it (Kristen Carlson Accardi).- Make the ACPI fan driver create cooling device interfaces witn
names that reflect the IDs of the ACPI device objects they are
associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").That's necessary for user space thermal management tools to be able
to connect the fans with the parts of the system they are supposed
to be cooling properly. From Srinivas Pandruvada"* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
MAINTAINERS: add entry for intel_pstate
ACPI / video: update the skip case for acpi_video_device_in_dod()
power / PM: Eliminate CONFIG_PM_RUNTIME
NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / EC: Fix unexpected ec_remove_handlers() invocations
Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / PM: Do not disable wakeup GPEs that have not been enabled
ACPI / utils: Drop error messages from acpi_evaluate_reference()
...
18 Dec, 2014
1 commit
15 Dec, 2014
1 commit
-
After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.Replace CONFIG_PM_RUNTIME with CONFIG_PM everywhere under
drivers/scsi/ and in include/scsi/scsi_device.h.Signed-off-by: Rafael J. Wysocki
Reviewed-by: Aaron Lu
Acked-by: Christoph Hellwig
13 Dec, 2014
1 commit
-
Pull trivial tree update from Jiri Kosina:
"Usual stuff: documentation updates, printk() fixes, etc"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits)
intel_ips: fix a type in error message
cpufreq: cpufreq-dt: Move newline to end of error message
ps3rom: fix error return code
treewide: fix typo in printk and Kconfig
ARM: dts: bcm63138: change "interupts" to "interrupts"
Replace mentions of "list_struct" to "list_head"
kernel: trace: fix printk message
scsi: mpt2sas: fix ioctl in comment
zbud, zswap: change module author email
clocksource: Fix 'clcoksource' typo in comment
arm: fix wording of "Crotex" in CONFIG_ARCH_EXYNOS3 help
gpio: msm-v1: make boolean argument more obvious
usb: Fix typo in usb-serial-simple.c
PCI: Fix comment typo 'COMFIG_PM_OPS'
powerpc: Fix comment typo 'CONIFG_8xx'
powerpc: Fix comment typos 'CONFiG_ALTIVEC'
clk: st: Spelling s/stucture/structure/
isci: Spelling s/stucture/structure/
usb: gadget: zero: Spelling s/infrastucture/infrastructure/
treewide: Fix company name in module descriptions
...
12 Dec, 2014
1 commit
-
Pull libata changes from Tejun Heo:
"The only interesting piece is the support for shingled drives. The
changes in libata layer are minimal. All it does is identifying the
new class of device and report upwards accordingly"* 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: Remove FIXME comment in atapi_request_sense()
sata_rcar: Document deprecated "renesas,rcar-sata"
sata_rcar: Add clocks to sata_rcar bindings
ahci_sunxi: Make AHCI_HFLAG_NO_PMP flag configurable with a module option
libata-scsi: Update SATL for ZAC drives
libata: Implement ATA_DEV_ZAC
libsas: use ata_dev_classify()
08 Dec, 2014
1 commit
-
Conflicts:
drivers/scsi/scsi_debug.cAgreed and tested resolution to a merge problem between a fix in scsi_debug
and a driver updateSigned-off-by: James Bottomley
04 Dec, 2014
4 commits
-
For SPI drivers use the message definitions from scsi.h, and for target
drivers introduce a new TCM_*_TAG namespace.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com -
There is no benefit over just setting sdev->simple_tags directly.
Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen -
Both remaining users are better of just checking sdev->simple_tags
directly.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen -
Since we got rid of ordered tag support in 2010 the prime use case of
switching on and off ordered tags has been obsolete. The other function
of enabling/disabling tagging entirely has only been correctly implemented
by the 53c700 driver and isn't generally useful.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen
27 Nov, 2014
1 commit
-
The task_collector mode (or "latency_injector", (C) Dan Willians) is an
optional I/O path in libsas that queues up scsi commands instead of
directly sending it to the hardware. It generall increases latencies
to in the optiomal case slightly reduce mmio traffic to the hardware.Only the obsolete aic94xx driver and the mvsas driver allowed to use
it without recompiling the kernel, and most drivers didn't support it
at all.Remove the giant blob of code to allow better optimizations for scsi-mq
in the future.Signed-off-by: Christoph Hellwig
Reviewed-by: Hannes Reinecke
Acked-by: Dan Williams
25 Nov, 2014
4 commits
-
SPC-3 defines SERVICE ACTION IN(12), SERVICE_ACTION OUT(12),
SERVICE ACTION OUT(16), and SERVICE ACTION BIDIRECTIONAL.
And READ MEDIA SERIAL NUMBER has long since been deprecated.
So update callers to refer to the new cdb name.Signed-off-by: Hannes Reinecke
Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Christoph Hellwig -
SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16).
So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be
consistent with SPC and to allow for better distinction.Signed-off-by: Hannes Reinecke
Tested-by: Robert Elliott
Reviewed-by: Robert Elliott
Signed-off-by: Christoph Hellwig -
The driver core driver structure has grown an owner field and now
requires it to be set for all modular drivers. Set it up for
all scsi_driver instances and get rid of the now superflous
scsi_driver owner field.Signed-off-by: Christoph Hellwig
Reported-by: Shane M Seymour
Reviewed-by: Ewan D. Milne -
There is no reason for ULDs to pass in a flag on how to allocate the S/G
lists. While we don't need GFP_ATOMIC for the blk-mq case because we
don't hold locks, that decision can be made way down the chain without
having to pass a pointless gfp_mask argument.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Hannes Reinecke
24 Nov, 2014
2 commits
-
Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke -
All drivers use the implementation for ramping the queue up and down, so
instead of overloading the change_queue_depth method call the
implementation diretly if the driver opts into it by setting the
track_queue_depth flag in the host template.Note that a few drivers validated the new queue depth in their
change_queue_depth method, but as we never go over the queue depth
set during slave_configure or the sysfs file this isn't nessecary
and can safely be removed.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke
Reviewed-by: Venkatesh Srinivas
20 Nov, 2014
1 commit
-
current trivial.git base
12 Nov, 2014
9 commits
-
Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth. For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway. The one other case looks
broken, but I've kept the behavior as-is for now.Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke
Reviewed-by: Martin K. Petersen -
Allow a driver to ask for block layer tags by setting .use_blk_tags in the
host template, in which case it will always see a valid value in
request->tag, similar to the behavior when using blk-mq. This means even
SCSI "untagged" commands will now have a tag, which is especially useful
when using a host-wide tag map.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Martin K. Petersen
Reviewed-by: Hannes Reinecke -
Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke
Reviewed-by: Martin K. Petersen -
Unless we want to build a SPI tag message we should just check SCMD_TAGGED
instead of reverse engineering a tag type through the use of
scsi_populate_tag_msg.Also rename the function to spi_populate_tag_msg, make it behave like the
other spi message helpers, and move it to the spi transport class.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke -
Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Mike Christie
Reviewed-by: Martin K. Petersen
Reviewed-by: Hannes Reinecke -
Remove the ordered_tags field, we haven't been issuing ordered tags based
on it since the big barrier rework in 2010.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Bart Van Assche
Reviewed-by: Martin K. Petersen -
Currently scsi piggy backs on the block layer to define the concept
of a tagged command. But we want to be able to have block-level host-wide
tags assigned even for untagged commands like the initial INQUIRY, so add
a new SCSI-level flag for commands that are tagged at the scsi level, so
that even commands without that set can have tags assigned to them. Note
that this alredy is the case for the blk-mq code path, and this just lets
the old path catch up with it.We also set this flag based upon sdev->simple_tags instead of the block
queue flag, so that it is entirely independent of the block layer tagging,
and thus always correct even if a driver doesn't use block level tagging
yet.Also remove the old blk_rq_tagged; it was only used by SCSI drivers, and
removing it forces them to look for the proper replacement.Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Martin K. Petersen
Reviewed-by: Hannes Reinecke -
Most drivers use exactly the same implementation, so provide it as a
library function.Signed-off-by: Christoph Hellwig
Reviewed-by: Bart Van Assche
Reviewed-by: Mike Christie
Reviewed-by: Martin K. Petersen
Reviewed-by: Hannes Reinecke -
Move all code to set up and tear down sdev->scsi_dh_data to common code.
Signed-off-by: Christoph Hellwig
Reviewed-by: Mike Christie
Reviewed-by: Hannes Reinecke