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Michal Kubeček fbe168ba91 net: generic dev_disable_lro() stacked device handling 
Large receive offloading is known to cause problems if received packets
are passed to other host. Therefore the kernel disables it by calling
dev_disable_lro() whenever a network device is enslaved in a bridge or
forwarding is enabled for it (or globally). For virtual devices we need
to disable LRO on the underlying physical device (which is actually
receiving the packets).

Current dev_disable_lro() code handles this  propagation for a vlan
(including 802.1ad nested vlan), macvlan or a vlan on top of a macvlan.
It doesn't handle other stacked devices and their combinations, in
particular propagation from a bond to its slaves which often causes
problems in virtualization setups.

As we now have generic data structures describing the upper-lower device
relationship, dev_disable_lro() can be generalized to disable LRO also
for all lower devices (if any) once it is disabled for the device
itself.

For bonding and teaming devices, it is necessary to disable LRO not only
on current slaves at the moment when dev_disable_lro() is called but
also on any slave (port) added later.

v2: use lower device links for all devices (including vlan and macvlan)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Acked-by: Veaceslav Falico <vfalico@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2014-11-13 14:48:56 -05:00
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accessibility
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acpi Merge branches 'acpi-scan' and 'acpi-ec' 2014-10-31 22:24:44 +01:00
amba PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h 2014-09-30 01:16:44 +02:00
ata Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-10-18 18:11:04 -07:00
atm atm: simplify lanai.c by using module_pci_driver 2014-10-17 11:55:32 -04:00
auxdisplay
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base ACPI and power management fixes for 3.18-rc3 2014-10-31 19:08:25 -07:00
bcma Merge tag 'master-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next 2014-11-10 14:34:59 -05:00
block Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2014-10-31 15:00:48 -07:00
bluetooth Bluetooth: HCI H5 peer reset detection 2014-10-31 19:54:34 +02:00
bus ARM: SoC driver updates for 3.18 2014-10-08 17:37:16 -04:00
cdrom
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char This adds a memzero_explicit() call which is guaranteed not to be 2014-10-24 12:33:32 -07:00
clk The clk tree changes for 3.18 are dominated by clock drivers. Mostly 2014-10-15 07:05:03 +02:00
clocksource ARM/ARM64: arch-timer: fix arch_timer_probed logic 2014-10-26 20:50:00 +01:00
connector
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cpufreq cpufreq: cpufreq-dt: Restore default cpumask_setall(policy->cpus) 2014-10-27 23:27:35 +01:00
cpuidle Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-10-24 12:48:47 -07:00
crypto crypto: LLVMLinux: Remove VLAIS from crypto/.../qat_algs.c 2014-10-14 10:51:23 +02:00
dca
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devfreq PM / devfreq: exynos: Enable building exynos PPMU as module 2014-09-29 20:22:36 +09:00
dio
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dma Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-10-18 18:11:04 -07:00
dma-buf dma-buf: don't open-code atomic_long_read() 2014-10-09 02:39:07 -04:00
edac e7xxx_edac: Report CE events properly 2014-10-22 22:59:00 +02:00
eisa
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extcon
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firewire
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firmware Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-23 14:45:09 -07:00
fmc
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gpio This is the bulk of GPIO changes for the v3.18 development 2014-10-09 14:58:15 -04:00
gpu drm/cirrus: bind also to qemu-xen-traditional 2014-10-23 14:09:04 +10:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2014-10-29 11:52:35 -07:00
hsi
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hv Drivers: hv: vmbus: Enable interrupt driven flow control 2014-09-23 23:31:22 -07:00
hwmon hwmon: (menf21bmc) Include linux/err.h 2014-10-19 18:41:18 -07:00
hwspinlock
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i2c Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2014-10-19 12:50:44 -07:00
ide Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block 2014-10-18 12:12:45 -07:00
idle
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iio iio: sensors-core: st: Check st_sensors_set_drdy_int_pin()'s return value 2014-09-26 08:15:27 +01:00
infiniband cxgb4i/cxgb4 : Refactor macros to conform to uniform standards 2014-11-13 14:36:22 -05:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-10-31 19:51:11 -07:00
iommu IOMMU Updates for Linux v3.18 2014-10-15 07:23:49 +02:00
ipack ipoctal: clear break interrupt as soon as it occurs 2014-09-23 23:26:42 -07:00
irqchip Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2014-10-15 07:48:18 +02:00
isdn net: Add and use skb_copy_datagram_msg() helper. 2014-11-05 16:46:40 -05:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-10-21 08:18:38 -07:00
lguest
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macintosh powerpc: Move via-cuda symbol exports next to function definitions 2014-09-25 23:14:37 +10:00
mailbox Merge branch 'mailbox-for-linus' of git://git.linaro.org/landing-teams/working/fujitsu/integration 2014-10-21 11:21:19 -07:00
mcb
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md . fix DM's long-standing excessive use of memory by leveraging the new 2014-10-18 12:25:30 -07:00
media [media] s5p-jpeg: Avoid -Wuninitialized warning in s5p_jpeg_parse_hdr 2014-10-24 09:36:59 -02:00
memory
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memstick memstick: r592: fix build warnings for !PM_SLEEP 2014-10-14 02:18:22 +02:00
message SCSI for-linus on 20141007 2014-10-07 21:29:18 -04:00
mfd Changes to existing drivers: 2014-10-15 06:58:16 +02:00
misc cxl: Fix PSL error due to duplicate segment table entries 2014-10-28 19:52:52 +11:00
mmc Merge branch 'for-3.18/drivers' of git://git.kernel.dk/linux-block 2014-10-18 12:12:45 -07:00
mtd Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-10-18 18:11:04 -07:00
net net: generic dev_disable_lro() stacked device handling 2014-11-13 14:48:56 -05:00
nfc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless 2014-10-07 14:48:29 -04:00
ntb ntb: Adding split BAR support for Haswell platforms 2014-10-17 07:08:51 -04:00
nubus
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of drivers: of: add return value to of_reserved_mem_device_init() 2014-10-29 16:33:14 -07:00
oprofile
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parisc Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 16:23:15 +02:00
parport parport: parport_pc: Implement architecture and device check to cut off false-positives 2014-09-23 23:14:28 -07:00
pci PCI updates for v3.18: 2014-10-31 18:48:29 -07:00
pcmcia
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phy phy: remove .owner field for drivers using module_platform_driver 2014-09-24 15:18:34 +05:30
pinctrl This is the bulk of GPIO changes for the v3.18 development 2014-10-09 14:58:15 -04:00
platform thinkpad_acpi: replace strnicmp with strncasecmp 2014-10-14 02:18:25 +02:00
pnp PNP: replace strnicmp with strncasecmp 2014-10-14 02:18:25 +02:00
power power: reset: at91-reset: fix power down register 2014-10-22 10:08:22 +02:00
powercap
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pps
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ps3
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ptp
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pwm pwm: Changes for v3.18-rc1 2014-10-21 08:17:43 -07:00
rapidio
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ras
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regulator Merge remote-tracking branch 'regulator/fix/rk808' into regulator-linus 2014-10-27 11:26:24 +00:00
remoteproc
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reset
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rpmsg
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rtc drivers/rtc/rtc-bq32k.c: fix register value 2014-10-29 16:33:14 -07:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-01 14:53:27 -04:00
sbus
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scsi cxgb4i/cxgb4 : Refactor macros to conform to uniform standards 2014-11-13 14:36:22 -05:00
sfi
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sh
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sn
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soc ARM: SoC driver updates for 3.18 2014-10-08 17:37:16 -04:00
spi Merge remote-tracking branches 'spi/fix/dw', 'spi/fix/orion', 'spi/fix/pl022', 'spi/fix/rockchip' and 'spi/fix/spidev' into spi-linus 2014-10-27 11:26:54 +00:00
spmi
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ssb This is the bulk of GPIO changes for the v3.18 development 2014-10-09 14:58:15 -04:00
staging This relatively large batch of changes is comprised of the 2014-11-04 16:18:12 -05:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-10-21 13:06:38 -07:00
tc
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thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-10-24 11:21:43 -07:00
thunderbolt
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tty Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-10-18 18:11:04 -07:00
uio uio: Export definition of struct uio_device 2014-10-02 21:35:54 -07:00
usb phonet: Replace calls to __skb_alloc_page with __dev_alloc_page 2014-11-12 00:00:14 -05:00
uwb uwb: add an ASIE sysfs attribute to uwb_rc devices 2014-09-23 22:05:26 -07:00
vfio IOMMU Updates for Linux v3.18 2014-10-15 07:23:49 +02:00
vhost
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video Merge branch '3.18/omapdss-fixes' into 3.18/fbdev-fixes 2014-10-30 14:53:49 +02:00
virt
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virtio One cc: stable commit, the rest are a series of minor cleanups which have 2014-10-18 10:25:09 -07:00
vlynq
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vme
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w1
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watchdog watchdog: meson: remove magic value for reboot 2014-10-20 21:09:17 +02:00
xen xen/pci: Allocate memory for physdev_pci_device_add's optarr 2014-10-23 16:24:02 +01:00
zorro
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Kconfig soc: ti: add Keystone Navigator QMSS driver 2014-09-24 09:49:14 -04:00
Makefile
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