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986a4f4d45
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Jason Wang 986a4f4d45 virtio_net: multiqueue support 
This patch adds the multiqueue (VIRTIO_NET_F_MQ) support to virtio_net
driver. VIRTIO_NET_F_MQ capable device could allow the driver to do packet
transmission and reception through multiple queue pairs and does the packet
steering to get better performance. By default, one one queue pair is used, user
could change the number of queue pairs by ethtool in the next patch.

When multiple queue pairs is used and the number of queue pairs is equal to the
number of vcpus. Driver does the following optimizations to implement per-cpu
virt queue pairs:

- select the txq based on the smp processor id.
- smp affinity hint to the cpu that owns the queue pairs.

This could be used with the flow steering support of the device to guarantee the
packets of a single flow is handled by the same cpu.

Signed-off-by: Krishna Kumar <krkumar2@in.ibm.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-09 00:30:55 -05:00
..
accessibility
acpi ACPI video: Ignore errors after _DOD evaluation. 2012-11-03 09:52:54 +08:00
amba
ata SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
atm Merge git://git.infradead.org/users/dwmw2/atm 2012-12-01 20:45:24 -05:00
auxdisplay
base PM / QoS: fix wrong error-checking condition 2012-11-23 20:55:06 +01:00
bcma bcma: register watchdog driver 2012-12-06 14:58:57 -05:00
block mtip32xx: Fix padding issue 2012-11-23 14:32:55 +01:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2012-11-21 13:03:00 -05:00
bus drivers: bus: ocp2scp: add pdata support 2012-11-07 09:35:53 -08:00
cdrom
char sonypi: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP 2012-10-25 12:05:50 -07:00
clk clk: ux500: Register slimbus clock lookups for u8500 2012-11-12 10:20:23 -08:00
clocksource Power management updates for 3.7-rc1 2012-10-02 18:32:35 -07:00
connector Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-10-02 13:38:27 -07:00
cpufreq cpufreq / powernow-k8: Change maintainer's email address 2012-10-31 21:02:57 +01:00
cpuidle ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug 2012-10-08 22:52:54 -04:00
crypto ARM: soc: late platform updates 2012-10-07 20:55:16 +09:00
dca
devfreq
dio
dma ioat: Do not enable DCA if tag map is invalid 2012-11-15 05:20:01 -08:00
edac EDAC: Change Boris' email address 2012-10-30 10:05:51 +01:00
eisa
extcon extcon : register for cable interest by cable name 2012-10-23 16:32:18 +09:00
firewire [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
firmware firmware/memmap: avoid type conflicts with the generic memmap_init() 2012-10-19 14:07:47 -07:00
gpio gpio-mcp23s08: Build I2C support even when CONFIG_I2C=m 2012-11-17 22:22:24 +01:00
gpu Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes 2012-11-22 13:21:57 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2012-11-16 07:58:20 -08:00
hsi
hv Drivers: hv: Cleanup error handling in vmbus_open() 2012-10-24 15:46:27 -07:00
hwmon hwmon: Fix chip feature table headers 2012-11-05 21:54:40 +01:00
hwspinlock
i2c Merge branch 'i2c-embedded/for-current' of git://git.pengutronix.de/git/wsa/linux 2012-11-23 11:59:26 -10:00
ide sections: fix section conflicts in drivers/ide 2012-10-06 03:04:41 +09:00
idle intel_idle: enable IVB Xeon support 2012-09-26 22:28:21 -04:00
iio iio: Remove duplicates for light/ in Kconfig and Makefile 2012-10-19 19:44:06 +01:00
infiniband Merge branches 'cxgb4' and 'mlx4' into for-next 2012-10-23 09:03:49 -07:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2012-11-22 21:45:34 -10:00
iommu intel-iommu: Fix lookup in add device 2012-11-17 13:27:15 +01:00
irqchip irqchip: irq-bcm2835: Add terminating entry for of_device_id table 2012-11-06 07:37:10 -08:00
isdn mISDN: improve bitops usage 2012-11-30 12:10:57 -05:00
leds ledtrig-cpu: kill useless mutex to fix sleep in atomic context 2012-11-11 12:09:43 -08:00
lguest Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-07 21:04:56 +09:00
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2012-10-06 03:16:12 +09:00
md Several bug fixes for md in 3.7 2012-11-23 12:11:13 -10:00
media [media] rtl28xxu: 0ccd:00d7 TerraTec Cinergy T Stick+ 2012-11-22 12:04:53 -02:00
memory memory: tegra{20,30}-mc: Fix reading incorrect register in mc_readl() 2012-09-26 14:04:09 -07:00
memstick
message
mfd mfd: twl4030: Fix chained irq handling on resume from suspend 2012-11-21 17:46:41 +01:00
misc pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
mmc mmc: sdhci-s3c: fix the card detection in runtime-pm 2012-11-07 15:40:52 -05:00
mtd Revert "mm: remove __GFP_NO_KSWAPD" 2012-11-26 17:41:24 -08:00
net virtio_net: multiqueue support 2012-12-09 00:30:55 -05:00
nfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2012-11-25 12:49:17 -05:00
nubus
of of/platform: sparse fix 2012-10-17 15:53:03 -05:00
oprofile mm: use mm->exe_file instead of first VM_EXECUTABLE vma->vm_file 2012-10-09 16:22:18 +09:00
parisc
parport Xtensa patchset for 3.7 2012-10-09 16:11:46 +09:00
pci PCI/portdrv: Don't create hotplug slots unless port supports hotplug 2012-11-05 16:59:59 -07:00
pcmcia Merge branch 'testing/driver-warnings' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc into fixes 2012-10-19 15:40:18 -07:00
pinctrl pinctrl/samsung: don't allow enabling pinctrl-samsung standalone 2012-11-15 11:58:24 +01:00
platform Merge branches 'fixes-for-37', 'ec' and 'thermal' into release 2012-10-09 01:47:35 -04:00
pnp
power Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-10-13 11:27:59 +09:00
pps pps, ptp: Remove dependencies on EXPERIMENTAL 2012-11-01 11:35:17 -04:00
ps3
ptp ptp: reduce stack usage when measuring the system time offset 2012-11-26 17:22:14 -05:00
pwm pwm: Changes for v3.7-rc1 2012-10-10 20:15:24 +09:00
rapidio rapidio: fix kernel-doc warnings 2012-11-16 14:33:04 -08:00
regulator Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp 2012-11-15 11:16:02 +09:00
remoteproc Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-07 21:04:56 +09:00
rpmsg Merge branch 'virtio-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-07 21:04:56 +09:00
rtc drivers/rtc/rtc-imxdi.c: add missing spin lock initialization 2012-10-25 14:37:53 -07:00
s390 qeth: Remove BUG_ONs 2012-11-19 14:19:00 -05:00
sbus
scsi [SCSI] sd: Implement support for WRITE SAME 2012-11-13 22:45:42 -08:00
sfi
sh sh: Fix up more fallout from pointless ARM __iomem churn. 2012-10-15 14:08:48 +09:00
sn
spi spi: Some minor MXS fixes 2012-10-28 11:13:54 -07:00
ssb ssb: register watchdog driver 2012-12-06 14:58:58 -05:00
staging Revert "Staging: Android alarm: IOCTL command encoding fix" 2012-11-13 13:04:43 -08:00
target target: Fix incorrect usage of nested IRQ spinlocks in ABORT_TASK path 2012-11-01 00:38:45 -07:00
tc
thermal exynos4_tmu_driver_ids should be exynos_tmu_driver_ids. 2012-11-03 09:52:55 +08:00
tty tty vt: Fix a regression in command line edition 2012-11-21 16:45:32 -08:00
uio mm: kill vma flag VM_RESERVED and mm->reserved_vm counter 2012-10-09 16:22:19 +09:00
usb SCSI fixes on 20121122 2012-11-22 09:14:54 -10:00
uwb
vfio vfio: Fix PCI INTx disable consistency 2012-10-10 09:10:32 -06:00
vhost tcm_vhost: remove unused variable in vhost_scsi_allocate_cmd() 2012-12-06 17:09:19 +02:00
video omapdss fixes for 3.7-rc 2012-11-23 12:01:02 -10:00
virt
virtio virtio: Don't access index after unregister. 2012-11-09 14:54:24 +10:30
vlynq
vme
w1 char/misc driver merge for 3.7-rc1 2012-10-01 12:09:59 -07:00
watchdog Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2012-10-07 21:06:10 +09:00
xen Bug-fix: 2012-11-20 18:52:01 -10:00
zorro
Kconfig ARM: soc: driver specific changes 2012-10-01 18:46:13 -07:00
Makefile IPMI: Change link order 2012-10-16 18:07:12 -07:00