* pm-opp:
PM / OPP: passing NULL to PTR_ERR()
PM / OPP: Move cpu specific code to opp/cpu.c
PM / OPP: Move opp core to its own directory
PM / OPP: Prefix exported opp routines with dev_pm_opp_
PM / OPP: Rename opp init/free table routines
PM / OPP: reuse of_parse_phandle()
* pm-cpufreq:
cpufreq: postfix policy directory with the first CPU in related_cpus
cpufreq: create cpu/cpufreq/policyX directories
cpufreq: remove cpufreq_sysfs_{create|remove}_file()
cpufreq: create cpu/cpufreq at boot time
cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
cpufreq: intel_pstate: Fix intel_pstate powersave min_perf_pct value
cpufreq: intel_pstate: Avoid calculation for max/min
Documentation: kernel_parameters for Intel P state driver
cpufreq: intel_pstate: Use ACPI perf configuration
cpufreq: intel-pstate: Use separate max pstate for scaling
cpufreq: intel_pstate: get P1 from TAR when available
cpufreq: Drop redundant check for inactive policies
cpufreq : powernv: Report Pmax throttling if capped below nominal frequency
cpufreq: imx: update the clock switch flow to support imx6ul
cpufreq: tegra20: remove superfluous CONFIG_PM ifdefs
cpufreq: conservative: remove 'enable' field
cpufreq: integrator: Fix module autoload for OF platform driver
* pm-cpuidle:
cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
cpuidle: mvebu: clean up multiple platform drivers
* pm-sleep:
PM / hibernate: fix a comment typo
input: i8042: Avoid resetting controller on system suspend/resume
PM / PCI / ACPI: Kick devices that might have been reset by firmware
PM / sleep: Add flags to indicate platform firmware involvement
PM / sleep: Drop pm_request_idle() from pm_generic_complete()
PCI / PM: Avoid resuming more devices during system suspend
PM / wakeup: wakeup_source_create: use kstrdup_const
PM / sleep: Report interrupt that caused system wakeup
* acpi-processor:
ACPI / CPPC: Fix potential memory leak
ACPI / CPPC: signedness bug in register_pcc_channel()
ACPI: Allow selection of the ACPI processor driver for ARM64
CPPC: Probe for CPPC tables for each ACPI Processor object
ACPI: Add weak routines for ACPI CPU Hotplug
ACPI / CPPC: Add a CPUFreq driver for use with CPPC
ACPI: Introduce CPU performance controls using CPPC
* acpica:
ACPICA: Update version to 20150930
ACPICA: Debugger: Fix dead lock issue ocurred in single stepping mode
ACPI: Enable build of AML interpreter debugger
ACPICA: Debugger: Add thread ID support so that single step mode can only apply to the debugger thread
ACPICA: Debugger: Fix "terminate" command by cleaning up subsystem shutdown logic
ACPICA: Debugger: Fix "quit/exit" command by cleaning up user commands termination logic
ACPICA: Linuxize: Export debugger files to Linux
ACPICA: iASL: General cleanup of the file suffix #defines
ACPICA: Improve typechecking, both compile-time and runtime
ACPICA: Update NFIT table to rename a flags field
ACPICA: Debugger: Update mutexes used for multithreaded debugger
ACPICA: Update exception code for "file not found" error
ACPICA: iASL: Add symbolic operator support for Index() operator
ACPICA: Remove unnecessary conditional compilation
When fib_netdev_event calls fib_disable_ip on NETDEV_DOWN event
we should not delete the local routes if the local address
is still present. The confusion comes from the fact that both
fib_netdev_event and fib_inetaddr_event use the NETDEV_DOWN
constant. Fix it by returning back the variable 'force'.
Steps to reproduce:
modprobe dummy
ifconfig dummy0 192.168.168.1 up
ifconfig dummy0 down
ip route list table local | grep dummy | grep host
local 192.168.168.1 dev dummy0 proto kernel scope host src 192.168.168.1
Fixes: 8a3d03166f ("net: track link-status of ipv4 nexthops")
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: David S. Miller <davem@davemloft.net>
Simplify DSA by pushing the switchdev objects for VLAN add and delete
operations down to its drivers. Currently only mv88e6xxx is affected.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The SS_LISTEN socket state is defined by both af_vsock.c and
vmci_transport.c. This is risky since the value could be changed in one
file and the other would be out of sync.
Rename from SS_LISTEN to VSOCK_SS_LISTEN since the constant is not part
of enum socket_state (SS_CONNECTED, ...). This way it is clear that the
constant is vsock-specific.
The big text reflow in af_vsock.c was necessary to keep to the maximum
line length. Text is unchanged except for s/SS_LISTEN/VSOCK_SS_LISTEN/.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This should be our final batch of fixes for 4.3:
- A patch from Sudeep Holla that fixes annotation of wakeup sources properly,
old unused format seems to have spread through copying.
- Two patches from Tony for OMAP. One dealing with MUSB setup problems due to
runtime PM being enabled too early on the parent device. The other fixes
IRQ numbering for OMAP1.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"This should be our final batch of fixes for 4.3:
- A patch from Sudeep Holla that fixes annotation of wakeup sources
properly, old unused format seems to have spread through copying.
- Two patches from Tony for OMAP. One dealing with MUSB setup
problems due to runtime PM being enabled too early on the parent
device. The other fixes IRQ numbering for OMAP1"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
usb: musb: omap2430: Fix regression caused by driver core change
ARM: OMAP1: fix incorrect INT_DMA_LCD
ARM: dts: fix gpio-keys wakeup-source property
Al Viro points out that:
> > * [Linux-specific aside] our __alloc_fd() can degrade quite badly
> > with some use patterns. The cacheline pingpong in the bitmap is probably
> > inevitable, unless we accept considerably heavier memory footprint,
> > but we also have a case when alloc_fd() takes O(n) and it's _not_ hard
> > to trigger - close(3);open(...); will have the next open() after that
> > scanning the entire in-use bitmap.
And Eric Dumazet has a somewhat realistic multithreaded microbenchmark
that opens and closes a lot of sockets with minimal work per socket.
This patch largely fixes it. We keep a 2nd-level bitmap of the open
file bitmaps, showing which words are already full. So then we can
traverse that second-level bitmap to efficiently skip already allocated
file descriptors.
On his benchmark, this improves performance by up to an order of
magnitude, by avoiding the excessive open file bitmap scanning.
Tested-and-acked-by: Eric Dumazet <edumazet@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This adds support to pass through persistent reservation requests
similar to the existing ioctl handling, and with the same limitations,
e.g. devices may only have a single target attached.
This is mostly intended for multipathing.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This moves the call to blkdev_ioctl and the argument checking to DM core
code, and only leaves a callout to find the block device to operate on
in the targets. This simplifies the code and allows us to pass through
ioctl-like command using other methods in the next patch.
Also split out a helper around calling the prepare_ioctl method that
will be reused for persistent reservation handling.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Pull networking fixes from David Miller:
1) Fix two regressions in ipv6 route lookups, particularly wrt output
interface specifications in the lookup key. From David Ahern.
2) Fix checks in ipv6 IPSEC tunnel pre-encap fragmentation, from
Herbert Xu.
3) Fix mis-advertisement of 1000BASE-T on bcm63xx_enet, from Simon
Arlott.
4) Some smsc phys misbehave with energy detect mode enabled, so add a
DT property and disable it on such switches. From Heiko Schocher.
5) Fix TSO corruption on TX in mv643xx_eth, from Philipp Kirchhofer.
6) Fix regression added by removal of openvswitch vport stats, from
James Morse.
7) Vendor Kconfig options should be bool, not tristate, from Andreas
Schwab.
8) Use non-_BH() net stats bump in tcp_xmit_probe_skb(), otherwise we
barf during TCP REPAIR operations.
9) Fix various bugs in openvswitch conntrack support, from Joe
Stringer.
10) Fix NETLINK_LIST_MEMBERSHIPS locking, from David Herrmann.
11) Don't have VSOCK do sock_put() in interrupt context, from Jorgen
Hansen.
12) Fix skb_realloc_headroom() failures properly in ISDN, from Karsten
Keil.
13) Add some device IDs to qmi_wwan, from Bjorn Mork.
14) Fix ovs egress tunnel information when using lwtunnel devices, from
Pravin B Shelar.
15) Add missing NETIF_F_FRAGLIST to macvtab feature list, from Jason
Wang.
16) Fix incorrect handling of throw routes when the result of the throw
cannot find a match, from Xin Long.
17) Protect ipv6 MTU calculations from wrap-around, from Hannes Frederic
Sowa.
18) Fix failed autonegotiation on KSZ9031 micrel PHYs, from Nathan
Sullivan.
19) Add missing memory barries in descriptor accesses or xgbe driver,
from Thomas Lendacky.
20) Fix release conditon test in pppoe_release(), from Guillaume Nault.
21) Fix gianfar bugs wrt filter configuration, from Claudiu Manoil.
22) Fix violations of RX buffer alignment in sh_eth driver, from Sergei
Shtylyov.
23) Fixing missing of_node_put() calls in various places around the
networking, from Julia Lawall.
24) Fix incorrect leaf now walking in ipv4 routing tree, from Alexander
Duyck.
25) RDS doesn't check pskb_pull()/pskb_trim() return values, from
Sowmini Varadhan.
26) Fix VLAN configuration in mlx4 driver, from Jack Morgenstein.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (79 commits)
ipv6: protect mtu calculation of wrap-around and infinite loop by rounding issues
Revert "Merge branch 'ipv6-overflow-arith'"
net/mlx4: Copy/set only sizeof struct mlx4_eqe bytes
net/mlx4_en: Explicitly set no vlan tags in WQE ctrl segment when no vlan is present
vhost: fix performance on LE hosts
bpf: sample: define aarch64 specific registers
amd-xgbe: Fix race between access of desc and desc index
RDS-TCP: Recover correctly from pskb_pull()/pksb_trim() failure in rds_tcp_data_recv
forcedeth: fix unilateral interrupt disabling in netpoll path
openvswitch: Fix skb leak using IPv6 defrag
ipv6: Export nf_ct_frag6_consume_orig()
openvswitch: Fix double-free on ip_defrag() errors
fib_trie: leaf_walk_rcu should not compute key if key is less than pn->key
net: mv643xx_eth: add missing of_node_put
ath6kl: add missing of_node_put
net: phy: mdio: add missing of_node_put
netdev/phy: add missing of_node_put
net: netcp: add missing of_node_put
net: thunderx: add missing of_node_put
ipv6: gre: support SIT encapsulation
...
Provide a flag to choose if the device does support memory-to-memory transfers.
At least this is not true for iDMA32 controller that might be supported in the
future. Besides that Intel BayTrail and Braswell users should not try this
feature due to HW specific behaviour.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Move the __attribute_const__ declarations such that sparse understands
that these apply to the function itself and not to the return type.
This avoids that sparse reports error messages like the following:
drivers/infiniband/core/verbs.c:73:12: error: symbol 'ib_event_msg' redeclared with different type (originally declared at include/rdma/ib_verbs.h:470) - different modifiers
Fixes: 2b1b5b6012 ("IB/core, cma: Nice log-friendly string helpers")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Tracing is useful for debugging and performance tuning. Add similar
traces to what's present in the cpu cooling device.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Add a generic thermal cooling device for devfreq, that is similar to
cpu_cooling.
The device must use devfreq. In order to use the power extension of the
cooling device, it must have registered its OPPs using the OPP library.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Ørjan Eide <orjan.eide@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
The WRSTBI bit (disabled by default but enabled by bootloader), when
set, is responsible for resetting voltages to default values of
certain bucks on falling edge of Warm Reset Input pin from AP.
However on some boards (with S2MPS13) the pin is pulled down so any
suspend will effectively trigger the reset of bucks supplying the power
to the little and big cores. In the same time when resuming, these bucks
must provide voltage greater or equal to voltage before suspend to match
the frequency chosen by cpufreq. If voltage (default value of voltage
after reset) is lower than one set by cpufreq before suspend, then
system will hang during resuming.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Tested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
rts522a(rts5227s) is derived from rts5227, and mainly same with rts5227.
Add it to file mfd/rts5227.c to support this chip.
Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Definitions for GPIO registers 8, 9, 10, 11, 12 and 13 are added into
the register header file.
- DA9052_GPIO_8_9_REG 25
- DA9052_GPIO_10_11_REG 26
- DA9052_GPIO_12_13_REG 27
A modification is also made to the MFD core code to define these registers
as readable and writable. The functions for da9052_reg_readable() and
da9052_reg_writeable() have had their case statements altered to include
these new registers.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This patch defines some macros to be used as value for the
"atmel,flexcom-mode" DT property. This value is then written into
the Operating Mode (OPMODE) bit field of the Flexcom Mode Register.
Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add MFD core driver for Intel Broxton Whiskey Cove PMIC,
which is specially accessed by hardware IPC, not a generic
I2C device
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
IRQ control registers of Intel Broxton Whisky Cove PMIC are
separated in two parts, so add secondary IRQ chip.
And the new member of device will be used in PMC IPC regmap APIs.
Signed-off-by: Qipeng Zha <qipeng.zha@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This is the NFC pull request for 4.4.
It's a bit bigger than usual, the 3 main culprits being:
- A new driver for Intel's Fields Peak NCI chipset. In order to
support this chipset we had to export a few NCI routines and
extend the driver NCI ops to not only support proprietary
commands but also core ones.
- Support for vendor commands for both STM drivers, st-nci
and st21nfca. Those vendor commands allow to run factory tests
through the NFC netlink interface.
- New i2c and SPI support for the Marvell driver, together with
firmware download support for this driver's core.
Besides that we also have:
- A few file renames in the STM drivers, to keep the naming
consistent between drivers.
- Some improvements and fixes on the NCI HCI layer, mostly to
properly reach a secure element over a legacy HCI link.
- A few fixes for the s3fwrn5 and trf7970a drivers.
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Merge tag 'nfc-next-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/nfc-next
Samuel Ortiz says:
====================
NFC 4.4 pull request
This is the NFC pull request for 4.4.
It's a bit bigger than usual, the 3 main culprits being:
- A new driver for Intel's Fields Peak NCI chipset. In order to
support this chipset we had to export a few NCI routines and
extend the driver NCI ops to not only support proprietary
commands but also core ones.
- Support for vendor commands for both STM drivers, st-nci
and st21nfca. Those vendor commands allow to run factory tests
through the NFC netlink interface.
- New i2c and SPI support for the Marvell driver, together with
firmware download support for this driver's core.
Besides that we also have:
- A few file renames in the STM drivers, to keep the naming
consistent between drivers.
- Some improvements and fixes on the NCI HCI layer, mostly to
properly reach a secure element over a legacy HCI link.
- A few fixes for the s3fwrn5 and trf7970a drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Johan Hedberg says:
====================
pull request: bluetooth-next 2015-10-28
Here are a some more Bluetooth patches for 4.4 which collected up during
the past week. The most important ones are from Kuba Pawlak for fixing
locking issues with SCO sockets. There's also a fix from Alexander Aring
for 6lowpan, a memleak fix from Julia Lawall for the btmrvl driver and
some cleanup patches from Marcel.
Please let me know if there are any issues pulling. Thanks.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Our IRQ storm detection works when an interrupt handler returns
IRQ_NONE for thousands of consecutive interrupts in a second. It
doesn't hurt to occasionally return IRQ_NONE when the interrupt is
actually genuine.
Drivers should only be returning IRQ_HANDLED if they have actually
*done* something to stop an interrupt from happening — it doesn't just
mean "this really *was* my device".
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: davem@davemloft.net
Link: http://lkml.kernel.org/r/1446016471.3405.201.camel@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Return true when fence 1 is later than fence 2 without
checking if any of them are signaled.
Useful for driver specific resource handling based on fences.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Waiting for the first fence in an array of fences to signal.
This is useful for device driver specific resource managers
and also Vulkan needs something similar.
v2: more parameter checks, handling for timeout==0,
remove NULL entry support, better callback removal.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
NOTE: Link-local IPv6 addresses for remote endpoints are not supported,
since the driver currently has no capacity for binding a geneve
interface to a specific link.
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Reviewed-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
LPSS SPI in Intel Broxton is otherwise the same than in Intel Sunrisepoint
but it supports up to four chip selects per port and has different FIFO
thresholds. Patch adds support for two Broxton SoC variants.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Few more drm-misc stragglers for 4.4. Big thing is the generic probe for
imx/rockchip/armada (but the variant for msm/rpi/exynos is still missing).
Also the hdmi clocking fixes from Ville which was a lot of confusion about
which tree it should be applied to ;-)
* tag 'topic/drm-misc-2015-10-22' of git://anongit.freedesktop.org/drm-intel:
drm: correctly check failed allocation
vga_switcheroo: Constify vga_switcheroo_handler
drm/armada: Convert the probe function to the generic drm_of_component_probe()
drm/rockchip: Convert the probe function to the generic drm_of_component_probe()
drm/imx: Convert the probe function to the generic drm_of_component_probe()
drm: Introduce generic probe function for component based masters.
drm/edid: Round to closest when computing the CEA/HDMI alternate clock
drm/edid: Fix up clock for CEA/HDMI modes specified via detailed timings
More amdgpu and radeon stuff for drm-next. Stoney support is the big change.
The rest is just bug fixes and code cleanups. The Stoney stuff is pretty
low impact with respect to existing chips.
* 'drm-next-4.4' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: change VM size default to 64GB
drm/amdgpu: add Stoney pci ids
drm/amdgpu: update the core VI support for Stoney
drm/amdgpu: add VCE support for Stoney (v2)
drm/amdgpu: add UVD support for Stoney
drm/amdgpu: add GFX support for Stoney (v2)
drm/amdgpu: add SDMA support for Stoney (v2)
drm/amdgpu: add DCE support for Stoney
drm/amdgpu: Update SMC/DPM for Stoney
drm/amdgpu: add GMC support for Stoney
drm/amdgpu: add Stoney chip family
drm/amdgpu: fix the broken vm->mutex V2
drm/amdgpu: remove the unnecessary parameter adev for amdgpu_fence_wait_any()
drm/amdgpu: remove the exclusive lock
drm/amdgpu: remove old lockup detection infrastructure
drm: fix trivial typos
drm/amdgpu/dce: simplify suspend/resume
drm/amdgpu/gfx8: set TC_WB_ACTION_EN in RELEASE_MEM packet
drm/radeon: Use rdev->gem.mutex to protect hyperz/cmask owners
Expand bitmask #defines completely. This puts the shift in the code
instead of in the #define, but it makes it more obvious in the header file
how fields in the register are laid out.
No functional change.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Add registers defined in PCI-SIG's Enhanced allocation ECN.
[bhelgaas: s/WRITEABLE/WRITABLE]
Signed-off-by: Sean O. Stalley <sean.stalley@intel.com>
[david.daney@cavium.com: Added more definitions for PCI_EA_BEI_*]
Signed-off-by: Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
No callers and no providers left, go ahead and remove it.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Linus dislikes these changes. To not hold up the net-merge let's revert
it for now and fix the bug like Linus suggested.
This reverts commit ec3661b422, reversing
changes made to c80dbe0461.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Open-channel SSDs are devices that share responsibilities with the host
in order to implement and maintain features that typical SSDs keep
strictly in firmware. These include (i) the Flash Translation Layer
(FTL), (ii) bad block management, and (iii) hardware units such as the
flash controller, the interface controller, and large amounts of flash
chips. In this way, Open-channels SSDs exposes direct access to their
physical flash storage, while keeping a subset of the internal features
of SSDs.
LightNVM is a specification that gives support to Open-channel SSDs
LightNVM allows the host to manage data placement, garbage collection,
and parallelism. Device specific responsibilities such as bad block
management, FTL extensions to support atomic IOs, or metadata
persistence are still handled by the device.
The implementation of LightNVM consists of two parts: core and
(multiple) targets. The core implements functionality shared across
targets. This is initialization, teardown and statistics. The targets
implement the interface that exposes physical flash to user-space
applications. Examples of such targets include key-value store,
object-store, as well as traditional block devices, which can be
application-specific.
Contributions in this patch from:
Javier Gonzalez <jg@lightnvm.io>
Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Jesper Madsen <jmad@itu.dk>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Instead of maintaining a fastreg page list, keep an sg table
and convert an array of pages to a sg list. Then call ib_map_mr_sg
and construct ib_reg_wr.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Acked-by: Christoph Hellwig <hch@lst.de>
Tested-by: Steve Wise <swise@opengridcomputing.com>
Tested-by: Selvin Xavier <selvin.xavier@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The new fast registration verb ib_map_mr_sg receives a scatterlist
and converts it to a page list under the verbs API thus hiding
the specific HW mapping details away from the consumer.
The provider drivers are provided with a generic helper ib_sg_to_pages
that converts a scatterlist into a vector of page addresses. The
drivers can still perform any HW specific page address setting
by passing a set_page function pointer which will be invoked for
each page address. This allows drivers to avoid keeping a shadow
page vectors and convert them to HW specific translations by doing
extra copies.
This API will allow ULPs to remove the duplicated code of constructing
a page vector from a given sg list.
The send work request ib_reg_wr also shrinks as it will contain only
mr, key and access flags in addition.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Conflicts:
drivers/infiniband/ulp/isert/ib_isert.c - Commit 4366b19ca5
(iser-target: Change the recv buffers posting logic) changed the
logic in isert_put_datain() and had to be hand merged
Commit 685e2d08c5 ("ARM: OMAP1: Change interrupt numbering for
sparse IRQ") turned on SPARSE_IRQ on OMAP1, but forgot to change
the number of INT_DMA_LCD. This broke the boot at least on Nokia 770,
where the device hangs during framebuffer initialization.
Fix by defining INT_DMA_LCD like the other interrupts.
Cc: stable@vger.kernel.org # v4.2+
Fixes: 685e2d08c5 ("ARM: OMAP1: Change interrupt numbering for sparse IRQ")
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
