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Govindarajulu Varadarajan 17e96834fd enic: fix rx skb checksum 
Hardware always provides compliment of IP pseudo checksum. Stack expects
whole packet checksum without pseudo checksum if CHECKSUM_COMPLETE is set.

This causes checksum error in nf & ovs.

kernel: qg-19546f09-f2: hw csum failure
kernel: CPU: 9 PID: 0 Comm: swapper/9 Tainted: GF          O--------------   3.10.0-123.8.1.el7.x86_64 #1
kernel: Hardware name: Cisco Systems Inc UCSB-B200-M3/UCSB-B200-M3, BIOS B200M3.2.2.3.0.080820141339 08/08/2014
kernel: ffff881218f40000 df68243feb35e3a8 ffff881237a43ab8 ffffffff815e237b
kernel: ffff881237a43ad0 ffffffff814cd4ca ffff8829ec71eb00 ffff881237a43af0
kernel: ffffffff814c6232 0000000000000286 ffff8829ec71eb00 ffff881237a43b00
kernel: Call Trace:
kernel: <IRQ>  [<ffffffff815e237b>] dump_stack+0x19/0x1b
kernel: [<ffffffff814cd4ca>] netdev_rx_csum_fault+0x3a/0x40
kernel: [<ffffffff814c6232>] __skb_checksum_complete_head+0x62/0x70
kernel: [<ffffffff814c6251>] __skb_checksum_complete+0x11/0x20
kernel: [<ffffffff8155a20c>] nf_ip_checksum+0xcc/0x100
kernel: [<ffffffffa049edc7>] icmp_error+0x1f7/0x35c [nf_conntrack_ipv4]
kernel: [<ffffffff814cf419>] ? netif_rx+0xb9/0x1d0
kernel: [<ffffffffa040eb7b>] ? internal_dev_recv+0xdb/0x130 [openvswitch]
kernel: [<ffffffffa04c8330>] nf_conntrack_in+0xf0/0xa80 [nf_conntrack]
kernel: [<ffffffff81509380>] ? inet_del_offload+0x40/0x40
kernel: [<ffffffffa049e302>] ipv4_conntrack_in+0x22/0x30 [nf_conntrack_ipv4]
kernel: [<ffffffff815005ca>] nf_iterate+0xaa/0xc0
kernel: [<ffffffff81509380>] ? inet_del_offload+0x40/0x40
kernel: [<ffffffff81500664>] nf_hook_slow+0x84/0x140
kernel: [<ffffffff81509380>] ? inet_del_offload+0x40/0x40
kernel: [<ffffffff81509dd4>] ip_rcv+0x344/0x380

Hardware verifies IP & tcp/udp header checksum but does not provide payload
checksum, use CHECKSUM_UNNECESSARY. Set it only if its valid IP tcp/udp packet.

Cc: Jiri Benc <jbenc@redhat.com>
Cc: Stefan Assmann <sassmann@redhat.com>
Reported-by: Sunil Choudhary <schoudha@redhat.com>
Signed-off-by: Govindarajulu Varadarajan <_govind@gmx.com>
Reviewed-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-19 15:45:28 -05:00
..
accessibility
acpi More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
amba Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
android
ata More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
atm Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
auxdisplay
base More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
bcma Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-12-11 17:56:37 -08:00
block Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2014-12-17 16:03:12 -08:00
bluetooth Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next 2014-12-15 13:23:09 -05:00
bus Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
cdrom
char Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
clk Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
clocksource Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-12-11 17:56:37 -08:00
connector
coresight
cpufreq More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
cpuidle Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
crypto Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dca
devfreq
dio
dma Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dma-buf
edac Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
eisa
extcon Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
firewire firewire: sbp2: replace card lock by target lock 2014-12-10 20:53:21 +01:00
firmware Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
fmc
gpio Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
gpu Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2014-12-12 10:26:47 -08:00
hsi * misc. fixes in omap-ssi and nokia-modem drivers 2014-12-15 17:33:47 -08:00
hv Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
hwmon Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-12-17 10:16:27 -08:00
hwspinlock
i2c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
ide Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
idle
iio Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
infiniband Merge branches 'core', 'cxgb4', 'ipoib', 'iser', 'mlx4', 'ocrdma', 'odp' and 'srp' into for-next 2014-12-15 18:19:20 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2014-12-17 10:06:02 -08:00
iommu ARM: SoC/iommu configuration for 3.19 2014-12-16 14:53:01 -08:00
ipack
irqchip Merge branch 'irq-irqdomain-arm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-15 17:30:09 -08:00
isdn Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-12-12 10:08:06 -08:00
leds More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
lguest virtio: allow finalize_features to fail 2014-12-09 16:32:32 +02:00
macintosh
mailbox Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
mcb
md Three fixes for md 2014-12-14 12:13:05 -08:00
media More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
memory MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
memstick
message
mfd Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
misc vhost/virtio: virtio 1.0 related fixes 2014-12-18 20:50:30 -08:00
mmc More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
mtd MTD updates for 3.19: 2014-12-17 09:59:26 -08:00
net enic: fix rx skb checksum 2014-12-19 15:45:28 -05:00
nfc More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
ntb
nubus
of ARM: SoC/iommu configuration for 3.19 2014-12-16 14:53:01 -08:00
oprofile
parisc
parport Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
pci Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
pcmcia Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
phy More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
pinctrl Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
platform platform-drivers-x86 for 3.19 2014-12-18 20:24:55 -08:00
pnp
power More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
powercap
pps
ps3
ptp
pwm pwm: Changes for v3.19-rc1 2014-12-17 10:10:51 -08:00
rapidio
ras
regulator Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
remoteproc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
reset Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
rpmsg
rtc Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
s390 Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
sbus
scsi More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
sfi
sh
sn
soc Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
spi More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
spmi
ssb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2014-12-11 17:56:37 -08:00
staging More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
target Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2014-12-12 10:08:06 -08:00
tc
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-12-17 10:16:27 -08:00
thunderbolt
tty More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
uio Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
usb More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
uwb
vfio VFIO updates for v3.19-rc1 2014-12-17 10:44:22 -08:00
vhost vhost/virtio: virtio 1.0 related fixes 2014-12-18 20:50:30 -08:00
video More ACPI and power management updates for 3.19-rc1 2014-12-18 20:28:33 -08:00
virt
virtio vhost/virtio: virtio 1.0 related fixes 2014-12-18 20:50:30 -08:00
vlynq
vme
w1 Char/Misc driver patches for 3.19-rc1 2014-12-14 16:43:47 -08:00
watchdog watchdog: imx2_wdt: Fix the argument of watchdog_active() 2014-12-18 16:01:20 +01:00
xen xen: features and fixes for 3.19-rc0 2014-12-11 18:15:33 -08:00
zorro
Kconfig Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00
Makefile Staging patches for 3.19-rc1 2014-12-15 18:06:13 -08:00