Alexander Duyck a0073a4b8b i40e/i40evf: Add support for new mechanism of updating adaptive ITR ... This patch replaces the existing mechanism for determining the correct value to program for adaptive ITR with yet another new and more complicated approach. The basic idea from a 30K foot view is that this new approach will push the Rx interrupt moderation up so that by default it starts in low latency and is gradually pushed up into a higher latency setup as long as doing so increases the number of packets processed, if the number of packets drops to 4 to 1 per packet we will reset and just base our ITR on the size of the packets being received. For Tx we leave it floating at a high interrupt delay and do not pull it down unless we start processing more than 112 packets per interrupt. If we start exceeding that we will cut our interrupt rates in half until we are back below 112. The side effect of these patches are that we will be processing more packets per interrupt. This is both a good and a bad thing as it means we will not be blocking processing in the case of things like pktgen and XDP, but we will also be consuming a bit more CPU in the cases of things such as network throughput tests using netperf. One delta from this versus the ixgbe version of the changes is that I have made the interrupt moderation a bit more aggressive when we are in bulk mode by moving our "goldilocks zone" up from 48 to 96 to 56 to 112. The main motivation behind moving this is to address the fact that we need to update less frequently, and have more fine grained control due to the separate Tx and Rx ITR times. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>		2018-02-12 11:50:10 -08:00
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accessibility	…
acpi	More ACPI updates for v4.16-rc1	2018-02-09 09:44:25 -08:00
amba	…
android	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
ata	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
atm	atm: he: use 64-bit arithmetic instead of 32-bit	2018-02-08 15:05:16 -05:00
auxdisplay	…
base	More power management updates for v4.16-rc1	2018-02-09 09:40:33 -08:00
bcma	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-19 22:59:33 -05:00
block	Things have been very quiet on the rbd side, as work continues on the	2018-02-08 11:38:59 -08:00
bluetooth	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2018-01-31 14:31:10 -08:00
bus	ARM: SoC driver updates for 4.16	2018-02-01 16:35:31 -08:00
cdrom	…
char	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
clk	MIPS changes for 4.16	2018-02-07 11:22:44 -08:00
clocksource	…
connector	…
cpufreq	arm: imx: Add MODULE_ALIAS for cpufreq	2018-02-08 10:21:39 +01:00
cpuidle	powerpc updates for 4.16	2018-02-02 10:01:04 -08:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2018-01-31 14:22:45 -08:00
dax	Merge branch 'for-4.16/dax' into libnvdimm-for-next	2018-02-03 00:26:10 -07:00
dca	…
devfreq	…
dio	…
dma	Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm	2018-02-02 09:50:51 -08:00
dma-buf	drm/graphics pull request for v4.16-rc1	2018-02-01 17:48:47 -08:00
edac	…
eisa	EISA: Delete error message for a failed memory allocation in eisa_probe()	2018-01-23 09:04:10 +01:00
extcon	…
firewire	IEEE 1394 subsystem patches:	2018-02-02 14:57:44 -08:00
firmware	2nd set of arm64 updates for 4.16:	2018-02-08 10:44:25 -08:00
fmc	…
fpga	…
fsi	…
gpio	This is the bulk of pin control changes for the v4.16 kernel cycle:	2018-02-02 14:22:53 -08:00
gpu	nouveau features, i915 + amdgpu fixes	2018-02-08 11:42:05 -08:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2018-01-31 13:00:01 -08:00
hsi	HSI changes for the v4.16 series	2018-01-31 12:54:05 -08:00
hv	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
hwmon	hwmon: (dell-smm) Disable fan support for Dell Vostro 3360	2018-01-27 09:34:22 -08:00
hwspinlock	…
hwtracing	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
i2c	Merge branch 'i2c/for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2018-02-04 10:57:43 -08:00
ide	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
idle	…
iio	Staging/IIO patches for 4.16-rc1	2018-02-01 09:51:57 -08:00
infiniband	Second pull request for 4.16 merge window	2018-02-06 11:09:45 -08:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2018-02-01 10:49:58 -08:00
iommu	IOMMU Updates for Linux v4.16	2018-02-08 12:03:54 -08:00
ipack	…
irqchip	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
isdn	Merge branch 'work.sock_recvmsg' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-01-30 18:59:03 -08:00
leds	LED updates for 4.16-rc1	2018-01-31 12:22:41 -08:00
lightnvm	…
macintosh	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
mailbox	Misc driver changes only :	2018-02-04 11:11:23 -08:00
mcb	…
md	for-linus-20180204	2018-02-04 11:16:35 -08:00
media	media: videobuf2: fix up for "media: annotate ->poll() instances"	2018-02-06 14:24:51 -08:00
memory	ARM: SoC driver updates for 4.16	2018-02-01 16:35:31 -08:00
memstick	…
message	…
mfd	seq_file: Introduce DEFINE_SHOW_ATTRIBUTE() helper macro	2018-02-07 12:50:21 +02:00
misc	virtio, vhost: fixes, cleanups, features	2018-02-08 10:41:00 -08:00
mmc	Kbuild updates for v4.16 (2nd)	2018-02-09 19:32:41 -08:00
mtd	dma mapping changes for Linux 4.16:	2018-01-31 11:32:27 -08:00
mux	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
net	i40e/i40evf: Add support for new mechanism of updating adaptive ITR	2018-02-12 11:50:10 -08:00
nfc	…
ntb	NTB: ntb_perf: fix cast to restricted __le32	2018-01-28 22:17:24 -05:00
nubus	…
nvdimm	Merge branch 'for-4.16/nfit' into libnvdimm-for-next	2018-02-03 00:26:26 -07:00
nvme	for-linus-20180204	2018-02-04 11:16:35 -08:00
nvmem	…
of	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
opp	…
oprofile	…
parisc	…
parport	…
pci	More ACPI updates for v4.16-rc1	2018-02-09 09:44:25 -08:00
pcmcia	Merge branch 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia	2018-02-08 11:48:49 -08:00
perf	bitmap: replace bitmap_{from,to}_u32array	2018-02-06 18:32:44 -08:00
phy	USB/PHY updates for 4.16-rc1	2018-02-01 09:40:49 -08:00
pinctrl	This is the bulk of pin control changes for the v4.16 kernel cycle:	2018-02-02 14:22:53 -08:00
platform	platform/x86: samsung-laptop: Re-use DEFINE_SHOW_ATTRIBUTE() macro	2018-02-07 12:50:23 +02:00
pnp	…
power	power supply and reset changes for the v4.16 series	2018-01-31 12:55:31 -08:00
powercap	…
pps	pps: parport: use timespec64 instead of timespec	2018-02-06 18:32:46 -08:00
ps3	…
ptp	…
pwm	…
rapidio	drivers/rapidio/devices/tsi721_dma.c: adjust six checks for null pointers	2018-02-06 18:32:46 -08:00
ras	mm/memory_failure: Remove unused trapno from memory_failure	2018-01-23 12:17:42 -06:00
regulator	regulator: Fix suspend to idle	2018-01-30 12:25:59 +00:00
remoteproc	remoteproc updates for v4.16	2018-02-05 10:07:40 -08:00
reset	…
rpmsg	rpmsg updates for v4.16	2018-02-05 10:05:40 -08:00
rtc	RTC for 4.16	2018-02-02 14:19:19 -08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-02-09 15:34:18 -08:00
sbus	pci-v4.16-changes	2018-02-06 09:59:40 -08:00
scsi	for-linus-20180204	2018-02-04 11:16:35 -08:00
sfi	…
sh	cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()	2018-02-08 10:21:39 +01:00
siox	…
slimbus	…
sn	…
soc	ARM: SoC driver updates for 4.16	2018-02-01 16:35:31 -08:00
soundwire	soundwire: Fix a signedness bug	2018-01-22 16:45:26 +01:00
spi	Merge remote-tracking branch 'spi/topic/xilinx' into spi-next	2018-01-26 17:57:34 +00:00
spmi	…
ssb	Merge git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers.git	2018-02-01 10:37:39 +02:00
staging	Kbuild updates for v4.16 (2nd)	2018-02-09 19:32:41 -08:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2018-02-09 14:49:46 -08:00
tc	…
tee	…
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2018-02-06 15:04:58 -08:00
thunderbolt	…
tty	More ACPI updates for v4.16-rc1	2018-02-09 09:44:25 -08:00
uio	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
usb	pinctrl: files should directly include apis they use	2018-02-05 09:41:54 -08:00
uwb	…
vfio	VFIO updates for v4.16-rc1	2018-02-01 13:18:25 -08:00
vhost	virtio, vhost: fixes, cleanups, features	2018-02-08 10:41:00 -08:00
video	Kbuild updates for v4.16 (2nd)	2018-02-09 19:32:41 -08:00
virt	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
virtio	virtio_pci: don't kfree device on register failure	2018-02-01 16:26:45 +02:00
visorbus	…
vlynq	…
vme	…
w1	Documentation updates for 4.16. New stuff includes refcount_t	2018-01-31 19:25:25 -08:00
watchdog	linux-watchdog 4.16-rc1 merge window tag	2018-02-07 11:54:34 -08:00
xen	xen: fixes for 4.16 rc1	2018-02-09 10:07:39 -08:00
zorro	…
Kconfig	Char/Misc driver patches for 4.16-rc1	2018-02-01 10:31:17 -08:00
Makefile	pci-v4.16-changes	2018-02-06 09:59:40 -08:00