Paolo Abeni fc791b6335 IB/ipoib: move back IB LL address into the hard header ... After the commit 9207f9d45b ("net: preserve IP control block during GSO segmentation"), the GSO CB and the IPoIB CB conflict. That destroy the IPoIB address information cached there, causing a severe performance regression, as better described here: http://marc.info/?l=linux-kernel&m=146787279825501&w=2 This change moves the data cached by the IPoIB driver from the skb control lock into the IPoIB hard header, as done before the commit 936d7de3d7 ("IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addresses"). In order to avoid GRO issue, on packet reception, the IPoIB driver stash into the skb a dummy pseudo header, so that the received packets have actually a hard header matching the declared length. To avoid changing the connected mode maximum mtu, the allocated head buffer size is increased by the pseudo header length. After this commit, IPoIB performances are back to pre-regression value. v2 -> v3: rebased v1 -> v2: avoid changing the max mtu, increasing the head buf size Fixes: 9207f9d45b ("net: preserve IP control block during GSO segmentation") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-10-14 10:54:53 -04:00
..
accessibility
acpi	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2016-10-12 11:05:23 -07:00
amba
android
ata
atm
auxdisplay
base	memory-hotplug: fix store_mem_state() return value	2016-10-07 18:46:28 -07:00
bcma
block	kthread: kthread worker API cleanup	2016-10-11 15:06:33 -07:00
bluetooth	Bluetooth: btusb: Fix atheros firmware download error	2016-10-07 09:46:56 +02:00
bus	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
cdrom
char	Merge branch 'work.uaccess2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-11 23:38:39 -07:00
clk	ARM: SoC: late DT updates for v4.9	2016-10-07 21:34:49 -07:00
clocksource	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
connector
cpufreq	Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm	2016-10-06 07:59:37 -07:00
cpuidle	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2016-10-10 14:04:16 -07:00
dax	Merge branch 'for-4.9/dax' into libnvdimm-for-next	2016-10-07 16:46:30 -07:00
dca
devfreq
dio
dma	dmaengine updates for 4.8-rc1	2016-10-06 17:13:54 -07:00
dma-buf	Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux	2016-10-11 18:12:22 -07:00
edac	* Altera Arria10 enablement of NAND, DMA, USB, QSPI and SD-MMC FIFO	2016-10-04 12:06:26 -07:00
eisa
extcon
firewire
firmware	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
fmc
fpga
gpio	Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2016-10-07 14:12:21 -07:00
gpu	Merge tag 'drm-for-v4.9' of git://people.freedesktop.org/~airlied/linux	2016-10-11 18:12:22 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2016-10-07 11:58:38 -07:00
hsi
hv	Drivers: hv: get rid of id in struct vmbus_channel	2016-09-27 12:35:49 +02:00
hwmon	hwmon updates for v4.9	2016-10-04 10:56:14 -07:00
hwspinlock
hwtracing
i2c	Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux	2016-10-07 14:12:21 -07:00
ide
idle	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
iio	Staging/IIO patches for 4.9-rc1	2016-10-05 14:50:51 -07:00
infiniband	IB/ipoib: move back IB LL address into the hard header	2016-10-14 10:54:53 -04:00
input	Merge branch 'akpm' (patches from Andrew)	2016-10-11 17:34:10 -07:00
iommu	IOMMU Updates for Linux v4.9	2016-10-11 12:52:41 -07:00
ipack
irqchip	Merge branch 'akpm' (patches from Andrew)	2016-10-11 17:34:10 -07:00
isdn
leds
lguest
lightnvm	Merge branch 'for-4.9/block' of git://git.kernel.dk/linux-block	2016-10-07 14:42:05 -07:00
macintosh
mailbox	Merge branch 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration	2016-10-06 17:36:53 -07:00
mcb	mcb: Add a dma_device to mcb_device	2016-09-27 12:33:47 +02:00
md	kthread: kthread worker API cleanup	2016-10-11 15:06:33 -07:00
media	Merge branch 'akpm' (patches from Andrew)	2016-10-11 17:34:10 -07:00
memory	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
memstick
message
mfd	- Core Frameworks	2016-10-07 08:35:35 -07:00
misc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
mmc	USB/PHY/EXTCON patches for 4.9-rc1	2016-10-03 20:17:35 -07:00
mtd	Merge branch 'akpm' (patches from Andrew)	2016-10-11 17:34:10 -07:00
net	net: wan: slic_ds26522: Allow driver to built if COMPILE_TEST is enabled	2016-10-14 10:11:49 -04:00
nfc
ntb
nubus
nvdimm	Merge branch 'for-4.9/dax' into libnvdimm-for-next	2016-10-07 16:46:30 -07:00
nvme	nvme: use the DMA_ATTR_NO_WARN attribute	2016-10-11 15:06:32 -07:00
nvmem	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
of	IOMMU Updates for Linux v4.9	2016-10-11 12:52:41 -07:00
oprofile	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-10-10 20:16:43 -07:00
parisc
parport
pci	PCI changes for the v4.9 merge window:	2016-10-13 17:08:58 -07:00
pcmcia
perf	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
phy
pinctrl	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
platform	platform-drivers-x86 for 4.9-1	2016-10-13 16:52:39 -07:00
pnp
power	power supply and reset changes for the v4.9 series	2016-10-06 18:21:15 -07:00
powercap
pps	pps: kc: fix non-tickless system config dependency	2016-10-11 15:06:32 -07:00
ps3
ptp	drivers/ptp: Fix kernel memory disclosure	2016-10-13 10:20:06 -04:00
pwm
rapidio	rapidio/rio_cm: use memdup_user() instead of duplicating code	2016-10-11 15:06:32 -07:00
ras
regulator	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2016-10-12 11:05:23 -07:00
remoteproc	rpmsg updates for v4.9	2016-10-06 17:03:49 -07:00
reset
rpmsg
rtc	Merge branches 'ib-mfd-gpio-4.9', 'ib-mfd-gpio-regulator-4.9', 'ib-mfd-input-4.9', 'ib-mfd-regulator-4.9', 'ib-mfd-regulator-4.9.1', 'ib-mfd-regulator-rtc-4.9', 'ib-mfd-regulator-rtc-4.9-1' and 'ib-mfd-rtc-4.9' into ibs-for-mfd-merged	2016-10-04 15:47:01 +01:00
s390	SCSI misc on 20161006	2016-10-07 09:28:53 -07:00
sbus
scsi	Merge branch 'for-4.9/block-irq' of git://git.kernel.dk/linux-block	2016-10-09 17:29:33 -07:00
sfi
sh
sn
soc	ARM: SoC driver updates for v4.9	2016-10-07 21:23:40 -07:00
spi	kthread: kthread worker API cleanup	2016-10-11 15:06:33 -07:00
spmi	spmi: pmic-arb: Return an error code if sanity check fails	2016-09-27 12:43:34 +02:00
ssb
staging	Merge branch 'akpm' (patches from Andrew)	2016-10-11 17:34:10 -07:00
target
tc
thermal	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux	2016-10-12 11:05:23 -07:00
thunderbolt
tty	kthread: kthread worker API cleanup	2016-10-11 15:06:33 -07:00
uio
usb	treewide: remove redundant #include <linux/kconfig.h>	2016-10-11 15:06:33 -07:00
uwb
vfio	vfio_pci: use pci_alloc_irq_vectors	2016-09-29 13:36:38 -06:00
vhost
video	fbdev changes for 4.9	2016-10-12 11:01:37 -07:00
virt
virtio
vlynq
vme	vme: fake: remove unexpected unlock in fake_master_set()	2016-09-27 12:43:35 +02:00
w1
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2016-10-13 16:44:20 -07:00
xen	xen: features and fixes for 4.9-rc0	2016-10-06 11:19:10 -07:00
zorro
Kconfig
Makefile