Eric Dumazet 60d5113428 ixgbe: Fix TX stats accounting ... Here is an updated version, because ixgbe_get_ethtool_stats() needs to call dev_get_stats() or "ethtool -S" wont give correct tx_bytes/tx_packets values. Several cpus can update netdev->stats.tx_bytes & netdev->stats.tx_packets in parallel. In this case, TX stats are under estimated and false sharing takes place. After a pktgen session sending exactly 200000000 packets : # ifconfig fiber0 | grep TX TX packets:198501982 errors:0 dropped:0 overruns:0 carrier:0 Multi queue devices should instead use txq->tx_bytes & txq->tx_packets in their xmit() method (appropriate txq lock already held by caller, no cache line miss), or use appropriate locking. After patch, same pktgen session gives : # ifconfig fiber0 | grep TX TX packets:200000000 errors:0 dropped:0 overruns:0 carrier:0 Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2009-12-08 20:10:12 -08:00
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accessibility	…
acpi	…
amba	…
ata	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev	2009-12-08 08:18:01 -08:00
atm	…
auxdisplay	…
base	PM / Runtime: Remove unnecessary braces in __pm_runtime_set_status()	2009-12-06 16:17:57 +01:00
block	drbd_req.c: use part_[inc|dec]_in_flight()	2009-12-03 17:40:51 +01:00
bluetooth	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-05 15:22:26 -08:00
cdrom	…
char	Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6	2009-12-08 07:38:50 -08:00
clocksource	…
connector	…
cpufreq	…
cpuidle	…
crypto	…
dca	…
dio	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
dma	Merge branches 'at91', 'ep93xx', 'etm', 'ks8695', 'nuc', 'u300' and 'u8500' into devel	2009-12-05 10:35:18 +00:00
edac	Merge branch 'perf/mce' into perf/core	2009-12-03 20:11:06 +01:00
eisa	…
firewire	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2009-12-08 08:13:10 -08:00
firmware	…
gpio	gpio: Langwell GPIO driver bugfixes	2009-12-01 16:32:19 -08:00
gpu	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel	2009-11-30 13:57:19 -08:00
hid	…
hwmon	…
i2c	i2c-stub: Allow user to disable some commands	2009-12-06 17:06:29 +01:00
ide	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev	2009-12-08 08:18:01 -08:00
idle	…
ieee1394	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6	2009-12-08 08:13:10 -08:00
ieee802154	ieee802154: merge cleanup	2009-12-02 01:13:11 -08:00
infiniband	…
input	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
isdn	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-05 15:22:26 -08:00
leds	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
lguest	…
macintosh	…
mca	…
md	Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6	2009-12-08 07:38:50 -08:00
media	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6	2009-12-08 07:47:46 -08:00
memstick	…
message	…
mfd	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
misc	Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging	2009-12-08 08:12:16 -08:00
mmc	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
mtd	Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block	2009-12-08 08:19:16 -08:00
net	ixgbe: Fix TX stats accounting	2009-12-08 20:10:12 -08:00
nubus	…
of	…
oprofile	…
parisc	…
parport	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k	2009-12-08 08:13:35 -08:00
pci	Merge branch 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-12-05 09:49:07 -08:00
pcmcia	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
platform	…
pnp	…
power	…
pps	…
ps3	…
rapidio	…
regulator	regulator: Initialise wm831x structure pointor for ISINK driver	2009-12-02 19:37:16 +00:00
rtc	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k	2009-12-08 08:13:35 -08:00
s390	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6	2009-12-08 07:55:01 -08:00
sbus	…
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6	2009-12-08 07:38:50 -08:00
serial	Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm	2009-12-08 08:12:43 -08:00
sfi	…
sh	…
sn	…
spi	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
ssb	Merge branch 'master' of /home/davem/src/GIT/linux-2.6/	2009-12-05 15:22:26 -08:00
staging	Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block	2009-12-08 08:19:16 -08:00
tc	…
telephony	…
thermal	…
uio	…
usb	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
uwb	…
video	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
virtio	…
vlynq	…
w1	…
watchdog	Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6	2009-12-08 08:15:29 -08:00
xen	…
zorro	m68k: don't export static inline functions	2009-12-06 11:18:28 +01:00
Kconfig	…
Makefile	…