Janusz Dziedzic 0ccb7a3485 ath10k: handle attention flags correctly when using A-MSDU ... In case of A-MSDU RX we should check attention flags correctly to be sure we report correct FCS status for A-MSDU subframes. Without a patch we could report A-MSDU subframes with wrong FCS as a correct to the stack, next get a lot of DUP ACK TCP packets. Finally TP drop is seen and this drop depends on FCS errors ratio for A-MSDU frame. Example test case when TP drop is seen: - ath10k configured as an AP - used ath10k station - forced A-MSDU (7 frames) on STA - other traffic on channel (often FCS errors) - monitor iface added on AP - TCP STA -> AP traffic (iperf) a) Iperf logs for case without the patch: echo "1 64" > htt_max_amsdu_ampdu // disable A-MSDU [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 56.6 MBytes 95.0 Mbits/sec [ 3] 5.0-10.0 sec 60.4 MBytes 101 Mbits/sec [ 3] 10.0-15.0 sec 60.2 MBytes 101 Mbits/sec [ 3] 15.0-20.0 sec 60.2 MBytes 101 Mbits/sec [ 3] 20.0-25.0 sec 63.8 MBytes 107 Mbits/sec [ 3] 25.0-30.0 sec 64.9 MBytes 109 Mbits/sec echo "7 64" > htt_max_amsdu_ampdu // set 7 A-MSDU subframes [ 3] 30.0-35.0 sec 40.0 MBytes 67.1 Mbits/sec [ 3] 35.0-40.0 sec 35.9 MBytes 60.2 Mbits/sec [ 3] 40.0-45.0 sec 36.9 MBytes 61.9 Mbits/sec [ 3] 45.0-50.0 sec 37.9 MBytes 63.5 Mbits/sec [ 3] 50.0-55.0 sec 34.5 MBytes 57.9 Mbits/sec [ 3] 55.0-60.0 sec 25.4 MBytes 42.6 Mbits/sec [ 3] 60.0-65.0 sec 48.2 MBytes 81.0 Mbits/sec [ 3] 65.0-70.0 sec 28.8 MBytes 48.2 Mbits/sec [ 3] 70.0-75.0 sec 29.2 MBytes 49.1 Mbits/sec [ 3] 75.0-80.0 sec 22.9 MBytes 38.4 Mbits/sec [ 3] 80.0-85.0 sec 26.4 MBytes 44.2 Mbits/sec [ 3] 85.0-90.0 sec 31.5 MBytes 52.8 Mbits/sec b) Iperf logs for case with patch: echo "1 64" > htt_max_amsdu_ampdu // disable A-MSDU [ 3] local 192.168.12.2 port 57512 connected with 192.168.12.1 port 5001 [ ID] Interval Transfer Bandwidth [ 3] 0.0- 5.0 sec 60.8 MBytes 102 Mbits/sec [ 3] 5.0-10.0 sec 62.2 MBytes 104 Mbits/sec [ 3] 10.0-15.0 sec 60.9 MBytes 102 Mbits/sec echo "7 64" > htt_max_amsdu_ampdu // set 7 A-MSDU subframes [ 3] 15.0-20.0 sec 68.1 MBytes 114 Mbits/sec [ 3] 20.0-25.0 sec 80.5 MBytes 135 Mbits/sec [ 3] 25.0-30.0 sec 83.0 MBytes 139 Mbits/sec [ 3] 30.0-35.0 sec 79.1 MBytes 133 Mbits/sec [ 3] 35.0-40.0 sec 77.1 MBytes 129 Mbits/sec [ 3] 40.0-45.0 sec 77.4 MBytes 130 Mbits/sec Reported-by: Denton Gentry <denton.gentry@gmail.com> Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>		2014-07-25 11:51:07 +03:00
..
ath	ath10k: handle attention flags correctly when using A-MSDU	2014-07-25 11:51:07 +03:00
b43	b43: enable 5 GHz support for N-PHY devices	2014-07-23 13:08:36 -04:00
b43legacy
brcm80211	bcma: extract antenna gains from SPROM correctly	2014-07-18 13:45:24 -04:00
cw1200	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next	2014-06-25 15:26:36 -04:00
hostap	net: get rid of SET_ETHTOOL_OPS	2014-05-13 17:43:20 -04:00
ipw2x00	drivers/net/wireless/ipw2x00/libipw_module.c: remove unnecessary null test before kfree	2014-07-01 14:26:26 -04:00
iwlegacy	mac80211: support more than one band in scan request	2014-06-25 09:10:42 +02:00
iwlwifi	iwlwifi: mvm: teardown TDLS peers during chan-switch and AP DCM	2014-07-22 22:08:47 +03:00
libertas	LIBERTAS_CS: ioport_map/unmap relies on HAS_IOPORT_MAP	2014-06-19 15:49:27 -04:00
libertas_tf
mwifiex	mwifiex: card reset: enable rescan of non-removable card	2014-07-22 13:53:17 -04:00
orinoco	PCMCIA_HERMES: ioport_map/unmap relies on HAS_IOPORT_MAP	2014-06-19 15:49:27 -04:00
p54	p54: use request_firmware_direct() for optional EEPROM override	2014-06-25 15:40:40 -04:00
prism54
rsi	rsi: fix memory leaks and error handling in rsi_91x_usb	2014-07-01 14:26:26 -04:00
rt2x00	wireless: rt2x00: add new rt2800usb devices	2014-07-15 16:00:03 -04:00
rtl818x	rtl818x_pci: fix pci probe returns success when it fails	2014-07-01 14:26:27 -04:00
rtlwifi	rtlwifi/rtl8723be: Replace magic number by macro	2014-06-25 15:40:35 -04:00
ti	wlcore/wl18xx/wl12xx: convert bitmaps to unsigned longs	2014-07-15 16:00:02 -04:00
zd1211rw	wireless: zd1211rw: new url for fw, remove experimental	2014-07-15 16:00:17 -04:00
adm8211.c
adm8211.h
airo_cs.c
airo.c
airo.h
at76c50x-usb.c	mac80211: support more than one band in scan request	2014-06-25 09:10:42 +02:00
at76c50x-usb.h	at76c50x: fix scan does not work with latest mac80211	2014-06-05 14:15:08 -04:00
atmel_cs.c
atmel_pci.c
atmel.c
atmel.h
Kconfig
mac80211_hwsim.c	mac80211_hwsim: fix compiler warning on MIPS	2014-07-23 13:08:35 -04:00
mac80211_hwsim.h
Makefile
mwl8k.c
ray_cs.c	ray_cs: replace del_timer by del_timer_sync	2014-04-22 15:06:28 -04:00
ray_cs.h
rayctl.h
rndis_wlan.c	cfg80211: constify MAC addresses in cfg80211 ops	2014-05-19 17:34:42 +02:00
wl3501_cs.c
wl3501.h
zd1201.c
zd1201.h