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Wei Liu ccc9d90a9a xenbus_client: Extend interface to support multi-page ring 
Originally Xen PV drivers only use single-page ring to pass along
information. This might limit the throughput between frontend and
backend.

The patch extends Xenbus driver to support multi-page ring, which in
general should improve throughput if ring is the bottleneck. Changes to
various frontend / backend to adapt to the new interface are also
included.

Affected Xen drivers:
* blkfront/back
* netfront/back
* pcifront/back
* scsifront/back
* vtpmfront

The interface is documented, as before, in xenbus_client.c.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Cc: Konrad Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
2015-04-15 10:56:47 +01:00
..
accessibility
…
acpi
ACPI / LPSS: provide con_id for the clkdev
2015-03-10 00:28:43 +01:00
amba
ARM: 8256/1: driver coamba: add device binding path 'driver_override'
2015-02-10 10:23:15 +00:00
android
android: binder: fix binder mmap failures
2015-03-01 18:43:51 -08:00
ata
sata-fsl: Apply link speed limits
2015-03-02 12:08:43 -05:00
atm
…
auxdisplay
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base
Merge branches 'pm-domains' and 'pm-cpufreq'
2015-03-06 01:29:31 +01:00
bcma
bcma: implement host code support for PCIe Gen 2 devices
2015-01-29 10:54:43 +02:00
block
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
bluetooth
Bluetooth: btusb: Fix issue with CSR based Intel Wireless controllers
2015-02-23 09:30:35 +02:00
bus
ARM: SoC platform changes
2015-02-17 09:27:54 -08:00
cdrom
…
char
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
clk
The clk fixes for 4.0-rc4 comprise three themes. First are the usual
2015-03-15 15:07:08 -07:00
clocksource
clocksource: pxa: Fix section mismatch
2015-02-25 10:28:55 +01:00
connector
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coresight
coresight: fix function etm_writel_cp14() parameter order
2015-02-04 10:42:55 -08:00
cpufreq
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
2015-03-06 13:43:33 -08:00
cpuidle
cpuidle / sleep: Use broadcast timer for states that stop local timer
2015-03-05 23:13:19 +01:00
crypto
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2015-02-18 08:49:20 -08:00
dca
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devfreq
Merge branches 'pm-cpufreq', 'pm-cpuidle', 'pm-devfreq', 'pm-opp' and 'pm-tools'
2015-02-13 21:39:06 +01:00
dio
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dma
dmaengine: mmp_pdma: fix warning about slave caps
2015-03-05 22:15:35 +05:30
dma-buf
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edac
* A fix to sb_edac for proper detection on SNB machines
2015-02-19 11:18:14 -08:00
eisa
…
extcon
…
firewire
firewire: core: use correct vendor/model IDs
2015-02-02 21:56:03 +01:00
firmware
* Fix regression in DMI sysfs code for handling "End of Table" entry
2015-03-02 14:18:57 +01:00
fmc
…
gpio
gpio: tps65912: fix wrong container_of arguments
2015-02-23 15:40:32 +01:00
gpu
[PATCH] drm/mm: Fix support 4 GiB and larger ranges
2015-03-16 06:28:50 +10:00
hid
HID: microsoft: Add ID for NE7K wireless keyboard
2015-02-23 15:28:40 +01:00
hsi
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hv
Char / Misc patches for 3.20-rc1
2015-02-15 10:48:44 -08:00
hwmon
hwmon: (ads7828) Check return value of devm_regmap_init_i2c
2015-02-22 20:10:30 -08:00
hwspinlock
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i2c
Revert "i2c: core: Dispose OF IRQ mapping at client removal time"
2015-03-12 10:23:05 +01:00
ide
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idle
intel_idle: Add ->enter_freeze callbacks
2015-02-15 19:40:09 +01:00
iio
Second round of IIO fixes for the 4.0 cycle (or round one part two really!)
2015-02-28 07:19:27 -08:00
infiniband
Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-02-22 17:42:14 -08:00
input
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
2015-03-09 18:06:13 -07:00
iommu
iommu/io-pgtable-arm: Add built time dependency
2015-03-03 14:04:12 +01:00
ipack
…
irqchip
Merge branch 'irqchip/urgent-gic' into irqchip/urgent
2015-03-15 01:41:26 +00:00
isdn
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-03-03 15:30:07 -08:00
leds
leds: leds-gpio: Pass on error codes unmodified
2015-02-02 14:36:10 -08:00
lguest
OK, this has the big virtio 1.0 implementation, as specified by OASIS.
2015-02-18 09:24:01 -08:00
macintosh
…
mailbox
Merge branch 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration
2015-02-11 12:56:40 -08:00
mcb
mcb: Fix error path of mcb_pci_probe
2015-02-03 15:48:51 -08:00
md
md: mark some attributes as pre-alloc
2015-02-25 11:38:46 +11:00
media
mm: gup: use get_user_pages_unlocked
2015-02-11 17:06:05 -08:00
memory
memory/fsl-corenet-cf: Add t1040 support
2015-01-29 22:57:43 -06:00
memstick
…
message
i2o: move to staging
2015-02-03 15:58:39 -08:00
mfd
Changes to existing drivers:
2015-02-18 09:05:48 -08:00
misc
mei: make device disabled on stop unconditionally
2015-03-01 19:34:50 -08:00
mmc
The clock framework changes for 3.20 contain the usual driver additions,
2015-02-21 12:30:30 -08:00
mtd
mtd: nand: MTD_NAND_HISI504 should depend on HAS_DMA
2015-03-02 22:55:56 -08:00
net
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
nfc
NFC: nci: Move NFCEE discovery logic
2015-02-04 09:15:18 +01:00
ntb
…
nubus
…
of
of: unittest: Add options string testcase variants
2015-03-10 10:44:21 -05:00
oprofile
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parisc
…
parport
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pci
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
pcmcia
ARM: SoC driver updates
2015-02-17 09:38:59 -08:00
phy
USB patches for 3.20-rc1
2015-02-15 10:24:55 -08:00
pinctrl
This is the bulk of pin control changes for the v3.20 cycle:
2015-02-11 11:23:13 -08:00
platform
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2015-02-21 11:12:07 -08:00
pnp
Merge branches 'pnp', 'pm-cpuidle' and 'pm-cpufreq'
2015-02-21 04:29:16 +01:00
power
power_supply: 88pm860x: Fix leaked power supply on probe fail
2015-01-28 15:08:10 +01:00
powercap
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pps
…
ps3
…
ptp
…
pwm
pwm: tegra: Use NSEC_PER_SEC
2015-02-18 08:40:29 +01:00
rapidio
Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma
2015-02-18 08:49:20 -08:00
ras
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regulator
Merge remote-tracking branches 'regulator/fix/da9210' and 'regulator/fix/rk808' into regulator-linus
2015-03-06 21:10:30 +00:00
remoteproc
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reset
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rpmsg
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rtc
drivers/rtc/rtc-s3c.c: add .needs_src_clk to s3c6410 RTC data
2015-03-12 18:46:07 -07:00
s390
s390/dcss: array index 'i' is used before limits check.
2015-02-26 09:24:48 +01:00
sbus
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scsi
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
sfi
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sh
drivers: sh: Disable PM runtime for multi-platform r8a7740 with genpd
2015-02-24 07:26:12 +09:00
sn
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soc
ARM: SoC driver updates
2015-02-17 09:38:59 -08:00
spi
Merge remote-tracking branches 'spi/fix/atmel', 'spi/fix/doc', 'spi/fix/dw', 'spi/fix/img-spfi', 'spi/fix/pl022' and 'spi/fix/ti-qspi' into spi-linus
2015-03-06 21:10:56 +00:00
spmi
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ssb
treewide: Remove unnecessary SSB_DEVTABLE_END macro
2015-02-11 14:38:29 -08:00
staging
staging: comedi: adv_pci1710: fix AI INSN_READ for non-zero channel
2015-03-01 19:25:59 -08:00
target
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
2015-02-21 13:21:19 -08:00
tc
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thermal
thermal: Make sysfs attributes of cooling devices default attributes
2015-03-05 01:47:57 -04:00
thunderbolt
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tty
TTY/Serial fixes for 4.0-rc3
2015-03-08 12:25:40 -07:00
uio
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usb
Merge branch 'gadget' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2015-03-13 10:55:32 -07:00
uwb
USB patches for 3.20-rc1
2015-02-15 10:24:55 -08:00
vfio
vfio-pci: Add missing break to enable VFIO_PCI_ERR_IRQ_INDEX
2015-03-12 09:51:38 -06:00
vhost
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2015-03-03 15:30:07 -08:00
video
OMAPDSS: fix regression with display sysfs files
2015-02-26 10:23:15 +02:00
virt
…
virtio
virtio: don't set VIRTIO_CONFIG_S_DRIVER_OK twice.
2015-02-17 16:19:29 +10:30
vlynq
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vme
…
w1
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watchdog
watchdog: at91sam9: request the irq with IRQF_NO_SUSPEND
2015-03-06 00:46:31 +01:00
xen
xenbus_client: Extend interface to support multi-page ring
2015-04-15 10:56:47 +01:00
zorro
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Kconfig
i2o: move to staging
2015-02-03 15:58:39 -08:00
Makefile
…