iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
36ea796498
linux/drivers
History
Tariq Toukan 36ea796498 net/mlx4_en: Improve XDP xmit function 
Several performance improvements in XDP TX datapath,
including:
- Ring a single doorbell for XDP TX ring per NAPI budget,
  instead of doing it per a lower threshold (was 8).
  This includes removing the flow of immediate doorbell ringing
  in case of a full TX ring.
- Compiler branch predictor hints.
- Calculate values in compile time rather than in runtime.

Performance tests:
Tested on ConnectX3Pro, Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz
Single queue no-RSS optimization ON.

XDP_TX packet rate:
-------------------------------------
     | Before    | After     | Gain |
IPv4 | 10.3 Mpps | 12.0 Mpps |  17% |
IPv6 | 10.3 Mpps | 12.0 Mpps |  17% |
-------------------------------------

Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Cc: kernel-team@fb.com
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-06-15 22:53:23 -04:00
..
accessibility
acpi Merge branch 'acpica-fixes' 2017-06-15 01:52:32 +02:00
amba
android
ata libata: fix error checking in in ata_parse_force_one() 2017-05-31 14:26:26 -04:00
atm atm: solos-pci: remove useless variable assignments 2017-06-15 17:25:33 -04:00
auxdisplay
base Merge branches 'intel_pstate' and 'pm-sleep' 2017-06-09 01:25:16 +02:00
bcma
block Fix loop device flush before configure v3 2017-06-08 08:04:18 -06:00
bluetooth Bluetooth: btusb: Add support for 0489:e0a2 QCA_ROME device 2017-06-14 11:14:30 +03:00
bus
cdrom
char Improve performance by using a lockless update mechanism suggested by 2017-06-11 12:02:01 -07:00
clk Sort of on the quieter side this time, which is probably due more 2017-05-10 13:38:18 -07:00
clocksource Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-05-12 10:43:25 -07:00
connector
cpufreq Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq' 2017-06-15 01:51:33 +02:00
cpuidle Merge branches 'pm-cpufreq', 'pm-cpuidle' and 'pm-devfreq' 2017-06-15 01:51:33 +02:00
crypto virtio: fixes, cleanups, performance 2017-05-10 11:33:08 -07:00
dax device-dax: fix 'dax' device filesystem inode destruction crash 2017-06-09 08:50:49 -07:00
dca
devfreq PM / devfreq: exynos-ppmu: Staticize event list 2017-06-12 10:12:07 +09:00
dio
dma dmaengine: pl330: fix warning in pl330_remove 2017-06-02 11:49:44 +05:30
dma-buf
edac EDAC, amd64: Fix reporting of Chip Select sizes on Fam17h 2017-05-03 16:27:36 +02:00
eisa
extcon
firewire
firmware Char/Misc driver fixes for 4.12-rc5 2017-06-11 11:29:15 -07:00
fmc
fpga fpga fr br: update supported version numbers 2017-04-26 11:38:56 +02:00
fsi
gpio gpio: mvebu: fix gpio bank registration when pwm is used 2017-06-09 09:38:27 +02:00
gpu Merge branch 'vmwgfx-fixes-4.12' of git://people.freedesktop.org/~thomash/linux into drm-fixes 2017-06-09 13:12:02 +10:00
hid HID: let generic driver yield control iff specific driver has been enabled 2017-06-13 16:52:50 +02:00
hsi hsi: Fix build regression due to netdev destructor fix. 2017-06-08 10:16:05 -04:00
hv char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
hwmon hwmon: (aspeed-pwm-tacho) make fan/pwm names start with index 1 2017-06-03 03:55:43 -07:00
hwspinlock
hwtracing drivers/hwtracing/intel_th/msu.c: use set_memory.h header 2017-05-08 17:15:14 -07:00
i2c i2c: designware: Fix bogus sda_hold_time due to uninitialized vars 2017-05-22 19:22:19 -07:00
ide ide: don't call memcpy with the same source and destination 2017-05-08 17:36:39 -04:00
idle x86/intel_idle: add Gemini Lake support 2017-05-01 23:17:37 +02:00
iio First set of IIO fixes in the 4.12 cycle. 2017-05-22 21:53:09 +02:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
input Input: synaptics-rmi4 - register F03 port as pass-through serio 2017-06-09 09:57:19 -07:00
iommu iommu/of: Ignore all errors except EPROBE_DEFER 2017-05-30 11:31:32 +02:00
ipack
irqchip Xtensa fixes for v4.12-rc6 2017-06-13 15:09:10 +09:00
isdn mISDN: remove unnecessary variable assignments 2017-06-08 11:32:53 -04:00
leds leds: pca955x: Correct I2C Functionality 2017-05-22 21:12:44 +02:00
lguest
lightnvm lightnvm: fix bad back free on error path 2017-05-04 07:53:04 -06:00
macintosh DeviceTree for 4.12: 2017-05-05 19:33:07 -07:00
mailbox mailbox: handle empty message in tx_tick 2017-04-27 16:20:04 +05:30
mcb
md md: initialise ->writes_pending in personality modules. 2017-06-05 16:04:35 -07:00
media media fixes for v4.12-rc6 2017-06-15 17:37:40 +09:00
memory Merge tag 'at91-4.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux into fixes 2017-06-01 17:07:31 -07:00
memstick
message scsi: mpt: Move scsi_remove_host() out of mptscsih_remove_host() 2017-04-24 18:21:17 -04:00
mfd mfd: axp20x: Support AXP803 variant 2017-04-27 11:54:49 +01:00
misc Char/Misc driver fixes for 4.12-rc5 2017-06-11 11:29:15 -07:00
mmc This pull request contains fixes to make the WiFi work again for the ARM64 2017-05-26 09:05:35 -07:00
mtd mtd: nand: make nand_ooblayout_lp_hamming_ops static 2017-05-22 09:42:29 +02:00
net net/mlx4_en: Improve XDP xmit function 2017-06-15 22:53:23 -04:00
nfc networking: use skb_put_zero() 2017-06-13 13:54:03 -04:00
ntb
nubus
nvdimm Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2017-05-12 15:43:10 -07:00
nvme nvme: relax APST default max latency to 100ms 2017-06-07 11:08:55 +02:00
nvmem ARM: SoC driver updates 2017-05-09 10:01:15 -07:00
of Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
oprofile
parisc
parport
pci PCI/PM: Add needs_resume flag to avoid suspend complete optimization 2017-05-23 14:18:17 -05:00
pcmcia Annotation of module parameters that specify device settings 2017-05-10 19:13:03 -07:00
perf drivers/perf: arm_pmu_acpi: avoid perf IRQ init when guest PMU is off 2017-05-30 12:40:03 +01:00
phy phy: qualcomm: phy-qcom-qmp: fix application of sizeof to pointer 2017-06-01 15:03:41 +05:30
pinctrl pinctrl: sunxi: Fix SPDIF function name for A83T 2017-05-23 11:31:27 +02:00
platform goldfish_pipe: use GFP_ATOMIC under spin lock 2017-05-25 18:26:11 +02:00
pnp
power power supply and reset changes for the v4.12 series (part 2) 2017-05-12 12:02:21 -07:00
powercap PowerCap: Fix an error code in powercap_register_zone() 2017-05-14 13:30:05 +02:00
pps
ps3
ptp ptp: Add a ptp clock driver for Broadcom DTE 2017-06-15 12:07:15 -04:00
pwm
rapidio char/misc patches for 4.12-rc1 2017-05-04 19:15:35 -07:00
ras
regulator Merge remote-tracking branch 'regulator/topic/vctrl' into regulator-next 2017-04-30 22:17:44 +09:00
remoteproc virtio: fixes, cleanups, performance 2017-05-10 11:33:08 -07:00
reset reset: hi6220: Set module license so that it can be loaded 2017-05-24 10:53:41 +02:00
rpmsg virtio: fixes, cleanups, performance 2017-05-10 11:33:08 -07:00
rtc Merge branches 'pm-sleep' and 'powercap' 2017-05-22 20:32:05 +02:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
sfi
sh
sn
soc ARM: SoC fixes (and a cross-arch dt-include fix) 2017-05-19 13:36:56 -07:00
spi Merge remote-tracking branches 'spi/topic/ti-qspi' and 'spi/topic/xlp' into spi-next 2017-04-26 15:58:22 +01:00
spmi
ssb ssb: Delete an error message for a failed memory allocation in ssb_devices_register() 2017-05-24 16:46:51 +03:00
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 11:59:32 -04:00
target cxgb4: Fix tids count for ipv6 offload connection 2017-06-07 15:14:34 -04:00
tc
tee Linux 4.12-rc1 2017-05-18 23:54:47 -07:00
thermal thermal: broadcom: ns-thermal: default on iProc SoCs 2017-05-23 20:09:34 -07:00
thunderbolt
tty Revert "tty: fix port buffer locking" 2017-06-04 10:23:25 +02:00
uio uio: fix incorrect memory leak cleanup 2017-05-16 23:06:41 +02:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-06-15 18:09:47 +09:00
uwb uwb: fix device quirk on big-endian hosts 2017-05-17 11:27:41 +02:00
vfio powerpc updates for 4.12 part 1. 2017-05-05 11:36:44 -07:00
vhost vhost_net: try batch dequing from skb array 2017-05-18 10:07:42 -04:00
video fbdev changes for v4.12: 2017-05-11 11:12:26 -07:00
virt drivers/virt/fsl_hypervisor.c: use get_user_pages_unlocked() 2017-05-08 17:15:10 -07:00
virtio virtio: allow extra context per descriptor 2017-05-02 23:41:43 +03:00
vlynq
vme
w1
watchdog watchdog: bcm281xx: Fix use of uninitialized spinlock. 2017-05-19 10:42:25 +02:00
xen xen: fix for 4.12 rc5 2017-06-09 09:59:51 -07:00
zorro
Kconfig
Makefile Merge branch 'tee/initial-merge' into fixes 2017-05-10 21:03:31 +02:00