Improve performance by using multiple RDMA/RC channels per SCSI
host for communication with an SRP target. About the
implementation:
- Introduce a loop over all channels in the code that uses
target->ch.
- Set the SRP_MULTICHAN_MULTI flag during login for the creation
of the second and subsequent channels.
- RDMA completion vectors are chosen such that RDMA completion
interrupts are handled by the CPU socket that submitted the I/O
request. As one can see in this patch it has been assumed if a
system contains n CPU sockets and m RDMA completion vectors
have been assigned to an RDMA HCA that IRQ affinity has been
configured such that completion vectors [i*m/n..(i+1)*m/n) are
bound to CPU socket i with 0 <= i < n.
- Modify srp_free_ch_ib() and srp_free_req_data() such that it
becomes safe to invoke these functions after the corresponding
allocation function failed.
- Add a ch_count sysfs attribute per target port.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
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 <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
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 <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
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 <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
This patch adds a debug_flag parameter that can be set on module load, and allows the DEBUG facility without a module recompile.
Note that now DEBUG 1 is the default with this patch.
Usage: modprobe st debug_flag=1
Signed-off-by: Laurence Oberman <loberman@redhat.com>
Acked-by: Kai M??kisara <kai.makisara@kolumbus.fi>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Here are some USB fixes for 3.18-rc4.
Just a bunch of little fixes resolving reported issues and new device ids for
existing drivers. Full details are in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some USB fixes for 3.18-rc4.
Just a bunch of little fixes resolving reported issues and new device
ids for existing drivers. Full details are in the shortlog"
* tag 'usb-3.18-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (26 commits)
USB: Update default usb-storage delay_use value in kernel-parameters.txt
USB: cdc-acm: add quirk for control-line state requests
phy: omap-usb2: Enable runtime PM of omap-usb2 phy properly
USB: storage: Fix timeout in usb_stor_euscsi_init() and usb_stor_huawei_e220_init()
USB: cdc-acm: only raise DTR on transitions from B0
Revert "storage: Replace magic number with define in usb_stor_euscsi_init()"
usb: core: notify disconnection when core detects disconnect
usb: core: need to call usb_phy_notify_connect after device setup
uas: Add US_FL_NO_ATA_1X quirk for 2 more Seagate models
xhci: no switching back on non-ULT Haswell
USB: quirks: enable device-qualifier quirk for yet another Elan touchscreen
USB: quirks: enable device-qualifier quirk for another Elan touchscreen
MAINTAINERS: Remove duplicate entry for usbip driver
usb: storage: fix build warnings !CONFIG_PM
usb: Remove references to non-existent PLAT_S5P symbol
uas: Add NO_ATA_1X for VIA VL711 devices
xhci: Disable streams on Asmedia 1042 xhci controllers
USB: HWA: fix a warning message
uas: Add US_FL_NO_ATA_1X quirk for 1 more Seagate model
usb-storage: handle a skipped data phase
...
Pull media fixes from Mauro Carvalho Chehab:
"For:
- some regression fixes at the Remote Controller core and imon driver
- a build fix for certain randconfigs with ir-hix5hd2
- don't feed power to satellite system at ds3000 driver init
It also contains some fixes for drivers added for Kernel 3.18:
- some fixes at the new ISDB-S driver, and the corresponding bits to
fix some descriptors for this Japanese TV standard at the DVB core
- two warning cleanups for sp2 driver if PM is disabled
- change the default mode for the new vivid driver"
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
[media] sp2: sp2_init() can be static
[media] dvb:tc90522: fix always-false expression
[media] dvb-core: set default properties of ISDB-S
[media] dvb:tc90522: fix stats report
[media] vivid: default to single planar device instances
[media] imon: fix other RC type protocol support
[media] ir-hix5hd2 fix build warning
[media] ds3000: fix LNB supply voltage on Tevii S480 on initialization
[media] rc5-decoder: BZ#85721: Fix RC5-SZ decoding
[media] rc-core: fix protocol_change regression in ir_raw_event_register
Back in 2010 the default usb-storage delay_use time was reduced from 5 to 1
second (commit a4a47bc03f), but
kernel-parameters.txt wasn't updated to reflect that.
Signed-off-by: Mark Knibbs <markk@clara.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Pull thermal fixes from Eduardo Valentin:
"Specifics:
- a few code fixes improving the Exynos code base. They remove dead
and unreachable code. No functional changes here
- in Exynos code base, fixes regarding the right usage of features
(TRIMINFO and TRIMRELOAD)
- documentation of RCAR thermal
- fix in the of-thermal, regarding the proper usage of of-APIs
- fixes on thermal-core, removal of unreachable code"
[ Eduardo is sending the thermal fixes on behalf of Rui Zhang this time.
Rui is currently unable to send pull requests due to troubles with his
machine and he's currently in a business trip ]
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
Thermal:Remove usless if(!result) before return tz
thermal: exynos: fix IRQ clearing on TMU initialization
thermal: fix multiple disbalanced device node counters
thermal: rcar: Add binding docs for new R-Car Gen2 SoCs
thermal: exynos: Add support for TRIM_RELOAD feature at Exynos3250
thermal: exynos: Add support for many TRIMINFO_CTRL registers
thermal: samsung: Exynos5260 and Exynos5420 should not use TRIM_RELOAD flag
thermal: exynos: remove identical values from exynos*_tmu_registers structures
thermal: exynos: remove redundant pdata checks from exynos_tmu_control()
thermal: exynos: cache non_hw_trigger_levels in pdata
thermal: exynos: simplify temp_to_code() and code_to_temp()
thermal: exynos: remove redundant threshold_code checks from exynos_tmu_initialize()
thermal: exynos: remove redundant pdata checks from exynos_tmu_initialize()
thermal: exynos: remove dead code for HW_MODE calibration
thermal: exynos: remove unused struct exynos_tmu_registers entries
The default used to be that the first vivid device instance was
single planar, the second multi planar, the third single planar, etc.
However, that turned out to be unexpected and awkward. Change the
driver to always default to single planar.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Pull input updates from Dmitry Torokhov:
"A bunch of fixes for minor defects reported by Coverity, a few driver
fixups and revert of i8042.nomux change so that we are once again
enable active MUX mode if box claims to support it"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Revert "Input: i8042 - disable active multiplexing by default"
Input: altera_ps2 - use correct type for irq return value
Input: altera_ps2 - write to correct register when disabling interrupts
Input: max77693-haptic - fix potential overflow
Input: psmouse - remove unneeded check in psmouse_reconnect()
Input: vsxxxaa - fix code dropping bytes from queue
Input: ims-pcu - fix dead code in ims_pcu_ofn_reg_addr_store()
Input: opencores-kbd - fix error handling
Input: wm97xx - adapt parameters to tosa touchscreen.
Input: i8042 - quirks for Fujitsu Lifebook A544 and Lifebook AH544
Input: stmpe-keypad - fix valid key line bitmask
Input: soc_button_array - update calls to gpiod_get*()
Pull networking fixes from David Miller:
"A bit has accumulated, but it's been a week or so since my last batch
of post-merge-window fixes, so...
1) Missing module license in netfilter reject module, from Pablo.
Lots of people ran into this.
2) Off by one in mac80211 baserate calculation, from Karl Beldan.
3) Fix incorrect return value from ax88179_178a driver's set_mac_addr
op, which broke use of it with bonding. From Ian Morgan.
4) Checking of skb_gso_segment()'s return value was not all
encompassing, it can return an SKB pointer, a pointer error, or
NULL. Fix from Florian Westphal.
This is crummy, and longer term will be fixed to just return error
pointers or a real SKB.
6) Encapsulation offloads not being handled by
skb_gso_transport_seglen(). From Florian Westphal.
7) Fix deadlock in TIPC stack, from Ying Xue.
8) Fix performance regression from using rhashtable for netlink
sockets. The problem was the synchronize_net() invoked for every
socket destroy. From Thomas Graf.
9) Fix bug in eBPF verifier, and remove the strong dependency of BPF
on NET. From Alexei Starovoitov.
10) In qdisc_create(), use the correct interface to allocate
->cpu_bstats, otherwise the u64_stats_sync member isn't
initialized properly. From Sabrina Dubroca.
11) Off by one in ip_set_nfnl_get_byindex(), from Dan Carpenter.
12) nf_tables_newchain() was erroneously expecting error pointers from
netdev_alloc_pcpu_stats(). It only returna a valid pointer or
NULL. From Sabrina Dubroca.
13) Fix use-after-free in _decode_session6(), from Li RongQing.
14) When we set the TX flow hash on a socket, we mistakenly do so
before we've nailed down the final source port. Move the setting
deeper to fix this. From Sathya Perla.
15) NAPI budget accounting in amd-xgbe driver was counting descriptors
instead of full packets, fix from Thomas Lendacky.
16) Fix total_data_buflen calculation in hyperv driver, from Haiyang
Zhang.
17) Fix bcma driver build with OF_ADDRESS disabled, from Hauke
Mehrtens.
18) Fix mis-use of per-cpu memory in TCP md5 code. The problem is
that something that ends up being vmalloc memory can't be passed
to the crypto hash routines via scatter-gather lists. From Eric
Dumazet.
19) Fix regression in promiscuous mode enabling in cdc-ether, from
Olivier Blin.
20) Bucket eviction and frag entry killing can race with eachother,
causing an unlink of the object from the wrong list. Fix from
Nikolay Aleksandrov.
21) Missing initialization of spinlock in cxgb4 driver, from Anish
Bhatt.
22) Do not cache ipv4 routing failures, otherwise if the sysctl for
forwarding is subsequently enabled this won't be seen. From
Nicolas Cavallari"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (131 commits)
drivers: net: cpsw: Support ALLMULTI and fix IFF_PROMISC in switch mode
drivers: net: cpsw: Fix broken loop condition in switch mode
net: ethtool: Return -EOPNOTSUPP if user space tries to read EEPROM with lengh 0
stmmac: pci: set default of the filter bins
net: smc91x: Fix gpios for device tree based booting
mpls: Allow mpls_gso to be built as module
mpls: Fix mpls_gso handler.
r8152: stop submitting intr for -EPROTO
netfilter: nft_reject_bridge: restrict reject to prerouting and input
netfilter: nft_reject_bridge: don't use IP stack to reject traffic
netfilter: nf_reject_ipv6: split nf_send_reset6() in smaller functions
netfilter: nf_reject_ipv4: split nf_send_reset() in smaller functions
netfilter: nf_tables_bridge: update hook_mask to allow {pre,post}routing
drivers/net: macvtap and tun depend on INET
drivers/net, ipv6: Select IPv6 fragment idents for virtio UFO packets
drivers/net: Disable UFO through virtio
net: skb_fclone_busy() needs to detect orphaned skb
gre: Use inner mac length when computing tunnel length
mlx4: Avoid leaking steering rules on flow creation error flow
net/mlx4_en: Don't attempt to TX offload the outer UDP checksum for VXLAN
...
With legacy booting, the platform init code was taking care of
the configuring of GPIOs. With device tree based booting, things
may or may not work depending what bootloader has configured or
if the legacy platform code gets called.
Let's add support for the pwrdn and reset GPIOs to the smc91x
driver to fix the issues of smc91x not working properly when
booted in device tree mode.
And let's change n900 to use these settings as some versions
of the bootloader do not configure things properly causing
errors.
Reported-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull documentation fixes from Jonathan Corbet:
"So this is my first pull request since I rashly agreed to look after
the documentation subtree. It contains some typo fixes, a few minor
documentation improvements, and, most importantly, fixes for a couple
of build problems in various bits of sample code.
I fully intend to start sending pull requests with signed tags.
However, due to poor planning on my part and the general obnoxiousness
of life, I'm 2000 miles away from my private key which is sitting on a
powered-down machine. This should be fixed before my next request.
Meanwhile git.lwn.net is a machine under my control, the patches are
all trivial, and all have done time in linux-next"
* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6:
Documentation/SubmittingPatches: Reported-by tags and permission
Documentation: remove outdated references to the linux-next wiki
Documentation: Restrict TSC test code to x86
doc: kernel-parameters.txt: Add ide-generic.probe-mask
vdso: don't require 64-bit math in standalone test
Documentation: Add CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF case
Documentation: Add default kmemleak off case in kernel-parameters.txt
Docs: Document that the sticky bit is understood by hugetlbfs
DocBook: Reduce noise from make cleandocs
Documentation: fix vdso_standalone_test_x86 on 32-bit
Documentation: dt-bindings: Explain order in patch series
Documentation/ABI/testing/sysfs-ibft: fix a typo
This reverts commit 68da166491.
It turns out that the assertion about scope of regressions due to
always keeping keyboard controller in legacy mode was proven wrong.
There are laptops, such as Clevo W650SH, that only have internal
touchpad (no external PS/2 ports), that require active multiplexing
mode to switch the touchpad (Elantech) into native mode instead of
basic PS/2 emulation.
Reported-by: Roel Aaij <roel.aaij@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Although the diffstat looks scary, it's just because of the removal of
the dead code (s6000), thus it must not affect anything serious.
Other than that, all small fixes. The only core fix is zero-clear for
a PCM compat ioctl. The rest are driver-specific, bebob, sgtl500,
adau1761, intel-sst, ad1889 and a few HD-audio quirks as usual.
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Merge tag 'sound-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Although the diffstat looks scary, it's just because of the removal of
the dead code (s6000), thus it must not affect anything serious.
Other than that, all small fixes. The only core fix is zero-clear for
a PCM compat ioctl. The rest are driver-specific, bebob, sgtl500,
adau1761, intel-sst, ad1889 and a few HD-audio quirks as usual"
* tag 'sound-3.18-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Add workaround for CMI8888 snoop behavior
ALSA: pcm: Zero-clear reserved fields of PCM status ioctl in compat mode
ALSA: bebob: Uninitialized id returned by saffirepro_both_clk_src_get
ALSA: hda/realtek - New SSID for Headset quirk
ALSA: ad1889: Fix probable mask then right shift defects
ALSA: bebob: fix wrong decoding of clock information for Terratec PHASE 88 Rack FW
ALSA: hda/realtek - Update restore default value for ALC283
ALSA: hda/realtek - Update restore default value for ALC282
ASoC: fsl: use strncpy() to prevent copying of over-long names
ASoC: adau1761: Fix input PGA volume
ASoC: s6000: remove driver
ASoC: Intel: HSW/BDW only support S16 and S24 formats.
ASoC: sgtl500: Document the required supplies
The reported-by text says you have to ask for permission, but that
should only be if the bug was reported in private. These days the
standard is to always give reported-by credit or it's considered a bit
rude.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The linux-next wiki at http://linux.f-seidel.de/linux-next/pmwiki has
been gone for several months now.
Signed-off-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The prctl test code in Documentation/ tries to show how to
use a call that only makes sense on x86. Restrict it there
so that other platforms don't try to call asm("rdtsc").
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Peter Foley <pefoley2@pefoley.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge tag 'media/v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"A series of driver fixes:
- a few compilation fixes with randconfigs
- one potential compilation breakage on userspace due to the usage of
a gcc extension
- several warnings fixed
- some other random driver fixes"
* tag 'media/v3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (22 commits)
[media] s5p-jpeg: Avoid -Wuninitialized warning in s5p_jpeg_parse_hdr
[media] s5p-fimc: Only build suspend/resume for PM
[media] s5p-jpeg: Only build suspend/resume for PM
[media] Remove references to non-existent PLAT_S5P symbol
[media] videobuf-dma-contig: set vm_pgoff to be zero to pass the sanity check in vm_iomap_memory()
[media] tw68: remove bogus I2C_ALGOBIT dependency
[media] usbvision-video: two use after frees
[media] tw68: remove deprecated IRQF_DISABLED
[media] xc5000: use after free in release()
[media] em28xx-input: NULL dereference on error
[media] wl128x: fix fmdbg compiler warning
Revert "[media] v4l2-dv-timings: fix a sparse warning"
[media] hackrf: harmless off by one in debug code
[media] cx23885: initialize config structs for T9580
[media] v4l: uvcvideo: Fix buffer completion size check
[media] vivid: fix buffer overrun
[media] saa7146: Create a device name before it's used
[media] em28xx: fix uninitialized variable warning
[media] vivid: fix Kconfig FB dependency
[media] anysee: make sure loading modules is const
...
The use of 64-bit math on i386 causes build failures:
vdso_standalone_test_x86.c:(.text+0x101): undefined reference to `__umoddi3'
vdso_standalone_test_x86.c:(.text+0x12d): undefined reference to `__udivdi3'
Commit adb19fb66e (Documentation: add makefiles for more targets) is
now building this by default, so it's failing the kernel build entirely.
Switching the declaration from uint64_t to time_t does the right thing
and handles the x32 case automatically.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Acked-by: Peter Foley <pefoley2@pefoley.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This patch brings back the makefile called testptp.mk which was removed
in commit adb19fb66e (Documentation: add makefiles for more targets).
While the idea of that commit was to improve build coverage of the
examples, the new Makefile is unable to cross compile the testptp program.
In contrast, the deleted makefile was able to do this just fine.
This patch fixes the regression by restoring the original makefile.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Peter Foley <pefoley2@pefoley.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Enable 48-bit VA space now that KVM has been fixed, together with
a couple of fixes for pgd allocation alignment and initial memblock
current_limit. There is still a dependency on !ARM_SMMU which needs to
be updated as it uses the page table manipulation macros of the host
kernel
- eBPF fixes following changes/conflicts during the merging window
- Compat types affecting compat_elf_prpsinfo
- Compilation error on UP builds
- ASLR fix when /proc/sys/kernel/randomize_va_space == 0
- DT definitions for CLCD support on ARMv8 model platform
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- enable 48-bit VA space now that KVM has been fixed, together with a
couple of fixes for pgd allocation alignment and initial memblock
current_limit. There is still a dependency on !ARM_SMMU which needs
to be updated as it uses the page table manipulation macros of the
host kernel
- eBPF fixes following changes/conflicts during the merging window
- Compat types affecting compat_elf_prpsinfo
- Compilation error on UP builds
- ASLR fix when /proc/sys/kernel/randomize_va_space == 0
- DT definitions for CLCD support on ARMv8 model platform
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix memblock current_limit with 64K pages and 48-bit VA
arm64: ASLR: Don't randomise text when randomise_va_space == 0
arm64: vexpress: Add CLCD support to the ARMv8 model platform
arm64: Fix compilation error on UP builds
Documentation/arm64/memory.txt: fix typo
net: bpf: arm64: minor fix of type in jited
arm64: bpf: add 'load 64-bit immediate' instruction
arm64: bpf: add 'shift by register' instructions
net: bpf: arm64: address randomize and write protect JIT code
arm64: mm: Correct fixmap pagetable types
arm64: compat: fix compat types affecting struct compat_elf_prpsinfo
arm64: Align less than PAGE_SIZE pgds naturally
arm64: Allow 48-bits VA space without ARM_SMMU
- Fix for a recent PCI power management change that overlooked
the fact that some IRQ chips might not be able to configure
PCIe PME for system wakeup from Lucas Stach.
- Fix for a bug introduced in 3.17 where acpi_device_wakeup()
is called with a wrong ordering of arguments from Zhang Rui.
- A bunch of intel_pstate driver fixes (all -stable candidates)
from Dirk Brandewie, Gabriele Mazzotta and Pali Rohár.
- Fixes for a rather long-standing problem with the OOM killer
and the freezer that frozen processes killed by the OOM do
not actually release any memory until they are thawed, so
OOM-killing them is rather pointless, with a couple of
cleanups on top (Michal Hocko, Cong Wang, Rafael J Wysocki).
- ACPICA update to upstream release 20140926, inlcuding mostly
cleanups reducing differences between the upstream ACPICA and
the kernel code, tools changes (acpidump, acpiexec) and
support for the _DDN object (Bob Moore, Lv Zheng).
- New PM QoS class for memory bandwidth from Tomeu Vizoso.
- Default 32-bit DMA mask for platform devices enumerated by ACPI
(this change is mostly needed for some drivers development in
progress targeted at 3.19) from Heikki Krogerus.
- ACPI EC driver cleanups, mostly related to debugging, from
Lv Zheng.
- cpufreq-dt driver updates from Thomas Petazzoni.
- powernv cpuidle driver update from Preeti U Murthy.
/
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Merge tag 'pm+acpi-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"This is material that didn't make it to my 3.18-rc1 pull request for
various reasons, mostly related to timing and travel (LinuxCon EU /
LPC) plus a couple of fixes for recent bugs.
The only really new thing here is the PM QoS class for memory
bandwidth, but it is simple enough and users of it will be added in
the next cycle. One major change in behavior is that platform devices
enumerated by ACPI will use 32-bit DMA mask by default. Also included
is an ACPICA update to a new upstream release, but that's mostly
cleanups, changes in tools and similar. The rest is fixes and
cleanups mostly.
Specifics:
- Fix for a recent PCI power management change that overlooked the
fact that some IRQ chips might not be able to configure PCIe PME
for system wakeup from Lucas Stach.
- Fix for a bug introduced in 3.17 where acpi_device_wakeup() is
called with a wrong ordering of arguments from Zhang Rui.
- A bunch of intel_pstate driver fixes (all -stable candidates) from
Dirk Brandewie, Gabriele Mazzotta and Pali Rohár.
- Fixes for a rather long-standing problem with the OOM killer and
the freezer that frozen processes killed by the OOM do not actually
release any memory until they are thawed, so OOM-killing them is
rather pointless, with a couple of cleanups on top (Michal Hocko,
Cong Wang, Rafael J Wysocki).
- ACPICA update to upstream release 20140926, inlcuding mostly
cleanups reducing differences between the upstream ACPICA and the
kernel code, tools changes (acpidump, acpiexec) and support for the
_DDN object (Bob Moore, Lv Zheng).
- New PM QoS class for memory bandwidth from Tomeu Vizoso.
- Default 32-bit DMA mask for platform devices enumerated by ACPI
(this change is mostly needed for some drivers development in
progress targeted at 3.19) from Heikki Krogerus.
- ACPI EC driver cleanups, mostly related to debugging, from Lv
Zheng.
- cpufreq-dt driver updates from Thomas Petazzoni.
- powernv cpuidle driver update from Preeti U Murthy"
* tag 'pm+acpi-3.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
intel_pstate: Correct BYT VID values.
intel_pstate: Fix BYT frequency reporting
intel_pstate: Don't lose sysfs settings during cpu offline
cpufreq: intel_pstate: Reflect current no_turbo state correctly
cpufreq: expose scaling_cur_freq sysfs file for set_policy() drivers
cpufreq: intel_pstate: Fix setting max_perf_pct in performance policy
PCI / PM: handle failure to enable wakeup on PCIe PME
ACPI: invoke acpi_device_wakeup() with correct parameters
PM / freezer: Clean up code after recent fixes
PM: convert do_each_thread to for_each_process_thread
OOM, PM: OOM killed task shouldn't escape PM suspend
freezer: remove obsolete comments in __thaw_task()
freezer: Do not freeze tasks killed by OOM killer
ACPI / platform: provide default DMA mask
cpuidle: powernv: Populate cpuidle state details by querying the device-tree
cpufreq: cpufreq-dt: adjust message related to regulators
cpufreq: cpufreq-dt: extend with platform_data
cpufreq: allow driver-specific data
ACPI / EC: Cleanup coding style.
ACPI / EC: Refine event/query debugging messages.
...
Pull thermal management updates from Zhang Rui:
"Sorry that I missed the merge window as there is a bug found in the
last minute, and I have to fix it and wait for the code to be tested
in linux-next tree for a few days. Now the buggy patch has been
dropped entirely from my next branch. Thus I hope those changes can
still be merged in 3.18-rc2 as most of them are platform thermal
driver changes.
Specifics:
- introduce ACPI INT340X thermal drivers.
Newer laptops and tablets may have thermal sensors and other
devices with thermal control capabilities that are exposed for the
OS to use via the ACPI INT340x device objects. Several drivers are
introduced to expose the temperature information and cooling
ability from these objects to user-space via the normal thermal
framework.
From: Lu Aaron, Lan Tianyu, Jacob Pan and Zhang Rui.
- introduce a new thermal governor, which just uses a hysteresis to
switch abruptly on/off a cooling device. This governor can be used
to control certain fan devices that can not be throttled but just
switched on or off. From: Peter Feuerer.
- introduce support for some new thermal interrupt functions on
i.MX6SX, in IMX thermal driver. From: Anson, Huang.
- introduce tracing support on thermal framework. From: Punit
Agrawal.
- small fixes in OF thermal and thermal step_wise governor"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
Thermal: int340x thermal: select ACPI fan driver
Thermal: int3400_thermal: use acpi_thermal_rel parsing APIs
Thermal: int340x_thermal: expose acpi thermal relationship tables
Thermal: introduce int3403 thermal driver
Thermal: introduce INT3402 thermal driver
Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h
ACPI / Fan: support INT3404 thermal device
ACPI / Fan: add ACPI 4.0 style fan support
ACPI / fan: convert to platform driver
ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant
ACPI / fan: remove no need check for device pointer
ACPI / fan: remove unused macro
Thermal: int3400 thermal: register to thermal framework
Thermal: int3400 thermal: add capability to detect supporting UUIDs
Thermal: introduce int3400 thermal driver
ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package()
ACPI: make acpi_create_platform_device() an external API
thermal: step_wise: fix: Prevent from binary overflow when trend is dropping
ACPI: introduce ACPI int340x thermal scan handler
thermal: Added Bang-bang thermal governor
...
This patch add a case with CONFIG_DEBUG_KMEMLEAK_DEFAULT_OFF=y.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Add a new inode operation i_op->dentry_open(). This is for stacked filesystems
that want to return a struct file from a different filesystem.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Pull x86 EFI updates from Peter Anvin:
"This patchset falls under the "maintainers that grovel" clause in the
v3.18-rc1 announcement. We had intended to push it late in the merge
window since we got it into the -tip tree relatively late.
Many of these are relatively simple things, but there are a couple of
key bits, especially Ard's and Matt's patches"
* 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
rtc: Disable EFI rtc for x86
efi: rtc-efi: Export platform:rtc-efi as module alias
efi: Delete the in_nmi() conditional runtime locking
efi: Provide a non-blocking SetVariable() operation
x86/efi: Adding efi_printks on memory allocationa and pci.reads
x86/efi: Mark initialization code as such
x86/efi: Update comment regarding required phys mapped EFI services
x86/efi: Unexport add_efi_memmap variable
x86/efi: Remove unused efi_call* macros
efi: Resolve some shadow warnings
arm64: efi: Format EFI memory type & attrs with efi_md_typeattr_format()
ia64: efi: Format EFI memory type & attrs with efi_md_typeattr_format()
x86: efi: Format EFI memory type & attrs with efi_md_typeattr_format()
efi: Introduce efi_md_typeattr_format()
efi: Add macro for EFI_MEMORY_UCE memory attribute
x86/efi: Clear EFI_RUNTIME_SERVICES if failing to enter virtual mode
arm64/efi: Do not enter virtual mode if booting with efi=noruntime or noefi
arm64/efi: uefi_init error handling fix
efi: Add kernel param efi=noruntime
lib: Add a generic cmdline parse function parse_option_str
...
Commit 75897d60 (hugetlb: allow sticky directory mount option) added
support for mounting hugetlbfs with sticky option set, like /tmp is
usually mounted, but forgot to document that.
Acked-by: Ken Chen <kenchen@google.com>
Signed-off-by: Kirill Smelkov <kirr@nexedi.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
I've got a harmless warning when running make cleandocs on an already
cleaned tree:
Documentation/DocBook/media/Makefile:28: recipe for target 'cleanmediadocs' failed
make[1]: [cleanmediadocs] Error 1 (ignored)
Suppress this by passing -f to rm.
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Pull SCSI target updates from Nicholas Bellinger:
"Here are the target updates for v3.18-rc2 code. These where
originally destined for -rc1, but due to the combination of travel
last week for KVM Forum and my mistake of taking the three week merge
window literally, the pull request slipped.. Apologies for that.
Things where reasonably quiet this round. The highlights include:
- New userspace backend driver (target_core_user.ko) by Shaohua Li
and Andy Grover
- A number of cleanups in target, iscsi-taret and qla_target code
from Joern Engel
- Fix an OOPs related to queue full handling with CHECK_CONDITION
status from Quinn Tran
- Fix to disable TX completion interrupt coalescing in iser-target,
that was causing problems on some hardware
- Fix for PR APTPL metadata handling with demo-mode ACLs
I'm most excited about the new backend driver that uses UIO + shared
memory ring to dispatch I/O and control commands into user-space.
This was probably the most requested feature by users over the last
couple of years, and opens up a new area of development + porting of
existing user-space storage applications to LIO. Thanks to Shaohua +
Andy for making this happen.
Also another honorable mention, a new Xen PV SCSI driver was merged
via the xen/tip.git tree recently, which puts us now at 10 target
drivers in upstream! Thanks to David Vrabel + Juergen Gross for their
work to get this code merged"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (40 commits)
target/file: fix inclusive vfs_fsync_range() end
iser-target: Disable TX completion interrupt coalescing
target: Add force_pr_aptpl device attribute
target: Fix APTPL metadata handling for dynamic MappedLUNs
qla_target: don't delete changed nacls
target/user: Recalculate pad size inside is_ring_space_avail()
tcm_loop: Fixup tag handling
iser-target: Fix smatch warning
target/user: Fix up smatch warnings in tcmu_netlink_event
target: Add a user-passthrough backstore
target: Add documentation on the target userspace pass-through driver
uio: Export definition of struct uio_device
target: Remove unneeded check in sbc_parse_cdb
target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE
qla_target: rearrange struct qla_tgt_prm
qla_target: improve qlt_unmap_sg()
qla_target: make some global functions static
qla_target: remove unused parameter
target: simplify core_tmr_abort_task
target: encapsulate smp_mb__after_atomic()
...
Pull mailbox framework from Jassi Brar:
"A framework for Mailbox controllers and clients have been cooking for
more than a year now.
Everybody in the CC list had been copied on patchset revisions and
most of them have made sounds of approval, though just one concrete
Reviewed-by. The patchset has also been in linux-next for a couple of
weeks now and no conflict has been reported. The framework has the
backing of at least 5 platforms, though I can't say if/when they
upstream their drivers (some businesses have 'changed')"
(Further acked-by by Arnd Bergmann and Suman Anna in the pull request
thread)
* 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
dt: mailbox: add generic bindings
doc: add documentation for mailbox framework
mailbox: Introduce framework for mailbox
mailbox: rename pl320-ipc specific mailbox.h
There are no new drivers here, only a couple of fixes all over the place.
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Merge tag 'pwm/for-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm changes from Thierry Reding:
"There are no new drivers here, only a couple of fixes all over the
place"
* tag 'pwm/for-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: Let PWM_CLPS711X depend on HAS_IOMEM
pwm: atmel: Fix calculation of prescale value
pwm: Fix uninitialized warnings in pwm_get()
pwm: rockchip: Allow polarity invert on rk3288
pwm: imx: Avoid sample FIFO overflow for i.MX PWM version2
pwm: imx: Cleanup indentation for register definitions
pwm: imx: Fix the macro MX3_PWMCR_PRESCALER(x) definition
pwm: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
pwm: lpss: make it buildable only on X86
pwm: lpss: use c99 initializers in structures
pwm: lpss: Fix build failure on PowerPC
pwm: lpss: pci: Move to use pcim_enable_device()
pwm: lpss: Properly split driver to parts
pwm: lpss: Add ACPI and PCI IDs for Intel Braswell
pwm: fsl-ftm: Select REGMAP_MMIO
pwm: fsl-ftm: Document 'big-endian' property
pwm: fsl-ftm: Convert to direct regmap API usage
pwm: fsl-ftm: Clean up the code
Pull more powerpc updates from Michael Ellerman:
"Here's some more updates for powerpc for 3.18.
They are a bit late I know, though must are actually bug fixes. In my
defence I nearly cut the top of my finger off last weekend in a
gruesome bike maintenance accident, so I spent a good part of the week
waiting around for doctors. True story, I can send photos if you like :)
Probably the most interesting fix is the sys_call_table one, which
enables syscall tracing for powerpc. There's a fix for HMI handling
for old firmware, more endian fixes for firmware interfaces, more EEH
fixes, Anton fixed our routine that gets the current stack pointer,
and a few other misc bits"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (22 commits)
powerpc: Only do dynamic DMA zone limits on platforms that need it
powerpc: sync pseries_le_defconfig with pseries_defconfig
powerpc: Add printk levels to setup_system output
powerpc/vphn: NUMA node code expects big-endian
powerpc/msi: Use WARN_ON() in msi bitmap selftests
powerpc/msi: Fix the msi bitmap alignment tests
powerpc/eeh: Block CFG upon frozen Shiner adapter
powerpc/eeh: Don't collect logs on PE with blocked config space
powerpc/eeh: Block PCI config access upon frozen PE
powerpc/pseries: Drop config requests in EEH accessors
powerpc/powernv: Drop config requests in EEH accessors
powerpc/eeh: Rename flag EEH_PE_RESET to EEH_PE_CFG_BLOCKED
powerpc/eeh: Fix condition for isolated state
powerpc/pseries: Make CPU hotplug path endian safe
powerpc/pseries: Use dump_stack instead of show_stack
powerpc: Rename __get_SP() to current_stack_pointer()
powerpc: Reimplement __get_SP() as a function not a define
powerpc/numa: Add ability to disable and debug topology updates
powerpc/numa: check error return from proc_create
powerpc/powernv: Fallback to old HMI handling behavior for old firmware
...
vdso_standalone_test_x86 needs -lgcc_s to build succesfully on 32bit.
Signed-off-by: Peter Foley <pefoley2@pefoley.com>
[ Fixed missing separator issue reported by Paul Bolle <pebolle@tiscali.nl> ]
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
When posting a patch series that includes both code implementing a
Device Tree binding and its associated documentation, the DT docs
should come in the series before the implementation.
This not only avoids checkpatch.pl to complain about undocumented
bindings but also makes the review process easier.
Document this convention since it may not be obvious.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Correct a sentence in Documentation/ABI/testing/sysfs-ibft.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Fix media DocBook build errors by re-adding the orderedlist tag
and putting back the section tags lost during merge.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Exynos7 SoC has a Watchdog for Atlas (A57) cores
This patch adds support for the Atlas watchdog.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
The Qualcomm Krait Processor Sub-system (KPSS) contains one or more
instances of the WDT. Provide documentation on how to describe these in
the device tree.
Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
