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03ceedea97
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Daniel Yingqiang Ma 03ceedea97 ath9k: Group Key fix for VAPs 
When I set up multiple VAPs with ath9k, I encountered an issue that
the traffic may be lost after a while.

The detailed phenomenon is
1. After a while the clients connected to one of these VAPs will get
into a state that no broadcast/multicast packets can be transfered
successfully while the unicast packets can be transfered normally.
2. Minutes latter the unitcast packets transfer will fail as well,
because the ARP entry is expired and it can't be freshed due to the
broadcast trouble.

It's caused by the group key overwritten and someone discussed this
issue in ath9k-devel maillist before, but haven't work out a fix yet.

I referred the method in madwifi, and made a patch for ath9k.
The method is to set the high bit of the sender(AP)'s address, and
associated that mac and the group key. It requires the hardware
supports multicast frame key search. It seems true for AR9160.

Not sure whether it's the correct way to fix this issue. But it seems
to work in my test. The patch is attached, feel free to revise it.

Signed-off-by: Daniel Yingqiang ma <yma.cool@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-04-20 11:50:51 -04:00
..
accessibility
acpi Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-03-01 10:36:22 -08:00
amba
ata Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev 2010-03-01 13:04:58 -08:00
atm
auxdisplay
base PM: Allow device drivers to use dpm_wait() 2010-02-26 20:39:11 +01:00
block Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block 2010-03-01 09:00:29 -08:00
bluetooth Bluetooth: Convert Marvell driver to use per adapter debugfs 2010-02-27 14:05:38 +01:00
cdrom block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
char Merge branch 'omap-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 2010-03-02 10:34:25 -08:00
clocksource Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-03-01 08:48:25 -08:00
connector connector: Delete buggy notification code. 2010-02-02 15:58:48 -08:00
cpufreq
cpuidle
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2010-02-26 16:50:02 -08:00
dca
dio
dma Merge branch 'sh/stable-updates' 2010-02-15 14:49:37 +09:00
edac Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp 2010-02-11 14:07:13 -08:00
eisa
firewire block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
firmware Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-02-28 19:23:06 -08:00
gpio
gpu Merge branch 'x86-pci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-02-28 10:59:18 -08:00
hid Merge branches 'upstream', 'raw_report_modifications' and 'apple_magic_mouse' into for-linus 2010-02-25 17:39:16 +01:00
hwmon Merge commit 'origin/master' into next 2010-02-17 10:00:42 +11:00
i2c Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
ide Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-03-01 10:36:22 -08:00
idle
ieee1394 block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
ieee802154
infiniband ipoib: returned back addrlen check for mc addresses 2010-02-28 01:34:28 -08:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-03-01 10:38:09 -08:00
isdn Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-02-28 19:23:06 -08:00
leds
lguest
macintosh Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2010-03-01 10:38:09 -08:00
mca
md block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
media Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-02-28 19:23:06 -08:00
memstick block: Consolidate phys_segment and hw_segment limits 2010-02-26 13:58:08 +01:00
message Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-03-02 07:55:08 -08:00
mfd Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
misc
mmc Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
mtd Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
net ath9k: Group Key fix for VAPs 2010-04-20 11:50:51 -04:00
nubus
of of: move definition of of_chosen into common code. 2010-02-14 07:13:55 -07:00
oprofile
parisc
parport
pci Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-03-02 07:55:08 -08:00
pcmcia Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus 2010-02-27 16:19:22 -08:00
platform Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 2010-03-01 10:36:22 -08:00
pnp
power wm97xx_battery: Handle missing platform data gracefully 2010-01-29 17:00:18 +03:00
pps
ps3 powerpc: Remove trailing space in messages 2010-02-09 13:56:23 +11:00
rapidio
regulator regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage() 2010-02-12 11:39:49 +00:00
rtc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
s390 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-03-02 07:55:08 -08:00
sbus Merge commit 'v2.6.33-rc5' into secretlab/test-devicetree 2010-01-28 14:38:25 -07:00
scsi Merge branch 'for-2.6.34' of git://git.kernel.dk/linux-2.6-block 2010-03-01 09:00:29 -08:00
serial Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
sfi
sh sh: Use dummy_irq_chip for INTC redirect vectors. 2010-02-17 12:37:42 +09:00
sn
spi Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
ssb ssb: Export ssb_chipco_gpio_control - needed by N PHY code 2010-03-10 17:53:51 -05:00
staging Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 2010-03-02 07:55:08 -08:00
tc
telephony
thermal
uio
usb Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
uwb
vhost vhost-net: restart tx poll on sk_sndbuf full 2010-02-28 19:50:33 +02:00
video Merge branch 'for-linus' of git://gitorious.org/linux-omap-dss2/linux 2010-03-02 10:41:26 -08:00
virtio virtio: fix out of range array access 2010-02-28 20:39:11 +02:00
vlynq
w1 omap3: Replace ARCH_OMAP34XX with ARCH_OMAP3 2010-02-15 09:27:02 -08:00
watchdog Merge with mainline to remove plat-omap/Kconfig conflict 2010-03-01 14:19:05 -08:00
xen
zorro
Kconfig
Makefile