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2015-10-09wil6210: Add proper handling for invalid frames on RxVladimir Kondratiev3-7/+22
On Rx, when invalid frame is received and dropped, reaping of next frames from Rx ring is stopped. This stops NAPI polling and re-enables the Rx interrupt. However, in cases where no more frames received, interrupt will not be triggered and rest of Rx frames will not be processed. Skip bad frames and continue to reap Rx packets when such frames are encountered, and add statistics for such frames for debug. Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-09wil6210: fix warning in system power management codeVladimir Kondratiev1-1/+1
Fix compilation warning where CONFIG_PM defined while CONFIG_PM_SLEEP is not defined Report follows: tree: git://github.com/kvalo/ath pending head: 941145fc5e5afbb120271e5dfaf37213ddb55807 commit: df596be39294d9712e5d568063a48448031e0a9f [37/39] wil6210: system power management config: xtensa-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout df596be39294d9712e5d568063a48448031e0a9f # save the attached .config to linux build tree make.cross ARCH=xtensa All warnings (new ones prefixed by >>): >> drivers/net/wireless/ath/wil6210/pcie_bus.c:264:12: warning: 'wil6210_suspend' defined but not used [-Wunused-function] static int wil6210_suspend(struct device *dev, bool is_runtime) ^ >> drivers/net/wireless/ath/wil6210/pcie_bus.c:291:12: warning: 'wil6210_resume' defined but not used [-Wunused-function] static int wil6210_resume(struct device *dev, bool is_runtime) ^ Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-09ath10k: use station's current operating mode from assoc requestVivek Natarajan1-2/+3
The current number of spatial streams used by the client is advertised as a separate IE in assoc request. Use this information to set the NSS operating mode. Fixes: 45c9abc059fa ("ath10k: implement more versatile set_bitrate_mask"). Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-09ath10k: optimize ce_lock on post rx buffer processingRajkumar Manoharan2-20/+9
After processing received packets from copy engine, host will allocate new buffer and queue them back to copy engine ring for further packet reception. On post rx processing path, skb allocation and dma mapping are unnecessarily handled within ce_lock. This is affecting peak throughput and also causing more CPU consumption. Optimize this by acquiring ce_lock only when accessing copy engine ring and moving skb allocation out of ce_lock. In AP148 platform with QCA99x0 in conducted environment, UDP uplink peak throughput is improved from ~1320 Mbps to ~1450 Mbps and TCP uplink peak throughput is increased from ~1240 Mbps (70% host CPU load) to ~1300 Mbps (71% CPU load). Similarly ~40Mbps improvement is observed in downlink path. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-09ath10k: increase pci wakeup timeout to 30 msMaharaja Kennadyrajan2-2/+7
It is noticed that pci wakeup time is exceeding current timeout (10ms) randomly which is tested on QCA988x. So, the wake up time is increased to 30 ms and added debug prints to log total timeout. Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-07Merge tag 'mac80211-next-for-davem-2015-10-05' of ↵David S. Miller5-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== For the current cycle, we have the following right now: * many internal fixes, API improvements, cleanups, etc. * full AP client state tracking in cfg80211/mac80211 from Ayala * VHT support (in mac80211) for mesh * some A-MSDU in A-MPDU support from Emmanuel * show current TX power to userspace (from Rafał) * support for netlink dump in vendor commands (myself) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-10-06ath10k: use pre-allocated DMA buffer in TxPeter Oh3-26/+28
ath10k driver is using dma_pool_alloc per packet and dma_pool_free in coresponding at Tx completion. Use of pre-allocated DMA buffer in Tx will improve saving CPU resource by 5% while it consumes about 56KB memory more as trade off. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: use Rx decap mode configured when driver registeredPeter Oh1-1/+1
ath10k is using Native WiFi mode as default mode for both of Tx and Rx path, but it could be changed when driver registers with a module parameter for specific purpose such as mesh. The Rx decap mode sent to firmware during WMI initialization should use the same mode that driver configured at its registration stage in case of using raw mode, so that host driver receives MAC frame header containing necessary fields such as QoS and Mesh Control and uses them in right way to make data traffic work. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: implement debugfs interface for Transmit Power Control statsMaharaja Kennadyrajan6-1/+573
The Transmit Power Control (TPC) dump will show the power control values for each rate which makes it easier to debug calibration problems. Example usage: # cat /sys/kernel/debug/ieee80211/phy0/ath10k/tpc_stats TPC config for channel 5180 mode 10 CTL = 0x10 Reg. Domain = 58 Antenna Gain = 1 Reg. Max Antenna Gain = 0 Power Limit = 34 Reg. Max Power = 34 Num tx chains = 3 Num supported rates = 155 **********CDD POWER TABLE******* No. Preamble Rate_code tpc_valu1 tpc_value2 tpc_value3 0 CCK 0x40 0 0 0 1 CCk 0x41 0 0 0 [...] 154 HTCUP 0x 0 24 0 0 **********STBC POWER TABLE****** No. Preamble Rate_code tpc_valu1 tpc_value2 tpc_value3 0 CCK 0x40 0 0 0 [...] 154 HTCUP 0x 0 24 24 0 **********TXBF POWER TABLE****** is used to dump the tx power control stats. Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: add a_sle32_to_cpu()Kalle Valo1-1/+20
Copy a_sle32_to_cpu() from ath6kl so that we can easily handle signed __le32 values. This is needed in struct wmi_pdev_tpc_config_event. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: split an unnecessary long lineKalle Valo1-1/+2
from checkpatch: drivers/net/wireless/ath/ath10k/mac.c:1113: line over 90 characters Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: fix whitespace usageKalle Valo3-2/+4
checkpatch found: drivers/net/wireless/ath/ath10k/core.c:574: Blank lines aren't necessary before a close brace '}' drivers/net/wireless/ath/ath10k/mac.c:4067: Missing a blank line after declarations drivers/net/wireless/ath/ath10k/mac.c:4083: Missing a blank line after declarations drivers/net/wireless/ath/ath10k/mac.c:4084: spaces required around that '>>=' (ctx:WxV) drivers/net/wireless/ath/ath10k/pci.c:1507: Missing a blank line after declarations Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: remove void function return statementsKalle Valo1-2/+0
drivers/net/wireless/ath/ath10k/wmi.c:3023: void function return statements are not generally useful Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: brace style fixesKalle Valo2-6/+5
drivers/net/wireless/ath/ath10k/htt_tx.c:457: braces {} are not necessary for single statement blocks drivers/net/wireless/ath/ath10k/htt_tx.c:545: braces {} are not necessary for single statement blocks drivers/net/wireless/ath/ath10k/mac.c:200: braces {} are not necessary for single statement blocks Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: indentation fixesKalle Valo4-10/+10
checkpatch found: drivers/net/wireless/ath/ath10k/core.c:513: Alignment should match open parenthesis drivers/net/wireless/ath/ath10k/core.c:1266: code indent should use tabs where possible drivers/net/wireless/ath/ath10k/core.c:1267: code indent should use tabs where possible drivers/net/wireless/ath/ath10k/core.c:1268: code indent should use tabs where possible drivers/net/wireless/ath/ath10k/core.c:1269: code indent should use tabs where possible drivers/net/wireless/ath/ath10k/mac.c:4659: Alignment should match open parenthesis drivers/net/wireless/ath/ath10k/mac.c:6271: Alignment should match open parenthesis drivers/net/wireless/ath/ath10k/pci.c:2260: Alignment should match open parenthesis drivers/net/wireless/ath/ath10k/wmi.c:3510: Alignment should match open parenthesis Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-06ath10k: fix checkpatch warning about logical continuationsKalle Valo1-2/+2
checkpatch found: drivers/net/wireless/ath/ath9k/core.c:490: Logical continuations should be on the previous line Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-10-05Merge ath-next from ath.gitKalle Valo14-140/+464
Major changes in ath10k: * add spectral scan support for 10.4 firmware * add qca6164 support * implement mesh support using firmware raw mode
2015-10-04debugfs: Pass bool pointer to debugfs_create_bool()Viresh Kumar4-5/+5
Its a bit odd that debugfs_create_bool() takes 'u32 *' as an argument, when all it needs is a boolean pointer. It would be better to update this API to make it accept 'bool *' instead, as that will make it more consistent and often more convenient. Over that bool takes just a byte. That required updates to all user sites as well, in the same commit updating the API. regmap core was also using debugfs_{read|write}_file_bool(), directly and variable types were updated for that to be bool as well. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-09-29ath9k: Add support for OCB modeJan Kaisrlik7-6/+16
The patch adds support for "outside the context of a BSS"(OCB) mode to ath9k driver and extends debugfs files by OCB ralated information. This patch was tested on AR9380-AL1A cards. Signed-off-by: Jan Kaisrlik <kaisrja1@fel.cvut.cz> Cc: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29carl9170: fix bad rssi readingHiroaki KAWAI1-1/+1
Fix rssi calculation error which was introduced in otus to ar9170 porting. Signed-off-by: Hiroaki KAWAI <hiroaki.kawai@gmail.com> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-29ath9k: enable hw manual peak calibration for QCA9561Miaoqing Pan1-2/+4
This patch fix https://lists.openwrt.org/pipermail/openwrt-devel/ 2015-August/034979.html. As the peak detect calibration is set incorrectly. Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-27ath10k: fix MSI-X registering for qca99x0Janusz Dziedzic2-23/+5
In case of qca99x0 and MSI-X supported/enabled we failed during interrupts registering with message: ath10k_pci 0000:04:00.0: failed to request MSI-X ce irq 50: -22 Issue/fix was reproduced/tested using Dell Latitude E6430 laptop. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-27ath10k: fix ldpc param for fixed rateRajkumar Manoharan1-2/+11
ldpc is not configured for fixed rates. This blocks auto rate vs fixed rate performance comparison. Since firmware is considering ldpc vdev param for fixed rate selection, it has to be configured to enable ldpc for fixed rates. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-27ath: use PRI value given by spec for fixed PRIPeter Oh3-7/+10
PRI value is used as divider when DFS detector analyzes candidate radar pulses. If PRI deviation is big from its origin PRI, DFS detector could miss valid radar reports since HW often misses detecting radar pulses and causes long interval value of pulses. For instance from practical results, if runtime PRI is calculated as 1431 for fixed PRI value of 1428 and delta timestamp logs 15719, the modular remainder will be 1409 and the delta between the remainder and runtime PRI is 22 that is bigger than PRI tolerance which is 16. As a result this radar report will be ignored even though it's valid. By using spec defined PRI for fixed PRI, we can correct this error. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-27ath: fix incorrect PPB on JAPAN chirp radarPeter Oh1-1/+1
The number of pulses per burst on Japan chirp radar is between 1 and 3. The previous value, 20, is representing number of bursts, but since current DFS detector is using pulse detection other than bursts, use the pulse number for correct radar detection. Also using the highest number helps to avoid false detection. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-26ath10k: fix DMA related firmware crashes on multiple devicesFelix Fietkau1-2/+2
Some platforms really don't like DMA bursts of 256 bytes, and this causes the firmware to crash when sending beacons. Also, changing this based on the firmware version does not seem to make much sense, so use 128 bytes for all versions. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-26ath9k: declare required extra tx headroomFelix Fietkau1-0/+1
ath9k inserts padding between the 802.11 header and the data area (to align it). Since it didn't declare this extra required headroom, this led to some nasty issues like randomly dropped packets in some setups. Cc: stable@vger.kernel.org Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-22mac80211: allow to transmit A-MSDU within A-MPDUEmmanuel Grumbach5-5/+5
Advertise the capability to send A-MSDU within A-MPDU in the AddBA request sent by mac80211. Let the driver know about the peer's capabilities. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-09-18ath9k_htc: introduce support for different fw versionsOleksij Rempel3-26/+105
Current kernel support only one fw name with theoretically only one fw version located in “firmware/htc_[9271|7010].fw”. Which is ok so far we have only one fw version (1.3). After we realised new fw 1.4, we faced compatibility problem which was decided to solve by firmware name and location: - new firmware is located now in firmware/ath9k_htc/htc_[9271|7010]-1.4.0.fw - old version 1.3 should be on old place, so old kernel have no issues with it. - new kernels including this patch should be able to try different supported (min..max) fw version. - new kernel should be able to support old fw location too. At least for now. At same time this patch will add new module option which should allow user to play with development fw version without replacing stable one. If user will set “ath9k_htc use_dev_fw=1” module will try to find firmware/ath9k_htc/htc_[9271|7010]-1.dev.0.fw first and if it fails, use stable version: for example...1.4.0.fw. Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-09-17ath10k: add ATH10K_FW_FEATURE_RAW_MODE_SUPPORT to ath10k_core_fw_feature_str[]Kalle Valo1-0/+5
This was missed in the original commit adding the flag and ath10k only printed "bit10": ath10k_pci 0000:02:00.0: qca988x hw2.0 (0x4100016c, 0x043202ff) fw 10.2.4.70.6-2 api 3 htt-ver 2.1 wmi-op 5 htt-op 2 cal otp max-sta 128 raw 0 hwcrypto 1 features no-p2p,bit10 Also add a build test to avoid this happening again. Fixes: ccec9038c721 ("ath10k: enable raw encap mode and software crypto engine") Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: handle IEEE80211_CHANCTX_CHANGE_WIDTH properlyMichal Kazior1-0/+64
Vdevs associated with a given chanctx should be restarted if the bandwidth changes. Otherwise traffic may cease. This is known to fix STA CSA with bandwidths wider than 20MHz. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: split switch_vif_chanctx gutsMichal Kazior1-79/+89
This is necessary to make vdev restarting logic reusable later. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: move hw_scan worker queuingMichal Kazior1-3/+5
The remain_on_channel callback needs different timeout. Calling ieee80211_queue_work() with a shorter delay after calling it with a longer delay will not change the timer. This caused the offchannel timeout worker to not trigger in time and caused the device to stay on channel longer then expected. This could cause some problems and was be easily reproduced with `iw offchannel` command. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: implement mesh supportBob Copeland2-1/+47
Add support for mesh to ath10k. We simply use an AP virtual interface in the firmware in order to enable beaconing without TSF adoption, and use the raw (802.11) transmit mode. Due to firmware limitations, the firmware must operate in raw (non-native 802.11) mode. As this is configured at firmware init time, a new "rawmode" modparam is added, and mesh interfaces are available only if rawmode=true. The firmware must advertise support for rawmode; tested successfully with firmware 10.2.4.70.6-2. When the module is loaded with (newly implemented) modparam rawmode=1, it will enable operating an open mesh STA via something like the following: ip link set wlan0 down iw dev wlan0 set type mp ip link set wlan0 up iw dev wlan0 set freq 5745 80 5775 iw dev wlan0 mesh join mesh-vht Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: check for encryption before adding MIC_LENBob Copeland1-1/+2
In the case of raw mode without nohwcrypt parameter, we should still make sure the frame is protected before adding MIC_LEN to avoid skb_under_panic errors. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-17ath10k: enable monitor when OTHER_BSS requestedBob Copeland1-0/+1
By default, ath10k restricts received frames to those matching BSSID. When other BSS frames are requested (e.g. in mesh mode), add an internal monitor device so those frames are not filtered. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-10drivers/net/wireless/ath/wil6210: use seq_hex_dump() to dump buffersAndy Shevchenko1-28/+7
Instead of custom approach let's use recently introduced seq_hex_dump() helper. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Joe Perches <joe@perches.com> Cc: Tadeusz Struk <tadeusz.struk@intel.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-09ath10k: print invalid mcs reported in rx descriptorManikanta Pubbisetty1-0/+23
Sometimes hardware reports invalid mcs index in rx descriptor when operating in VHT80 mode and all packets with invalid mcs will be eventually dropped in mac80211. This issue is observerd during testing on QCA99X0 chipsets. This patch adds a warn message for dumping the rx desc info which helps in analysing the issue when invalid mcs is received. Signed-off-by: Manikanta Pubbisetty <c_mpubbi@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-09ath10k: fix beamformer VHT sounding dimensions capabilityBartosz Markowski1-2/+19
Similarly to the VHT STS, this is supposed to be propagated by firmware. In case it's not, use the default value, but as last resort. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-09ath10k: fix beamformee VHT STS capabilityBartosz Markowski1-2/+20
The VHT STS CAP shall be reported by firmware to host, like in case of QCA99x0. For QCA6174 hw family this isn't set for some reason. So for this particular chips, let's assume it has the ability to support VHT NDP in up to 4 STSs (which is true by the way). Change the published beamformee STS cap accordingly to 3 or to what the firmware reports. Assumption so far, it suppose to be the num_rf_chains-1, was completely wrong. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-09ath10k: drop probe responses when too many are queuedVivek Natarajan5-11/+68
In a noisy environment, when multiple interfaces are created, the management tx descriptors are fully occupied by the probe responses from all the interfaces. This prevents a new station from a successful association. Fix this by limiting the probe responses when the specified threshold limit is reached. Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-09ath10k: fix DMA alloc failure for target requested memory chunksVasanthakumar Thiagarajan3-6/+72
During long hours of stress testing like AP interface up/down along with continuous ping flood from a station doing connect/disconnect, it is observed that the system is not able to allocate DMA consistent memory of size > 512KB chunks as requested by firmware in WMI_SERVICE_EVENTID. With the system memory getting fragmented during the run based on the size of the memory requested, the failure to return physically continguous memory of high order can happen. Once the system gets to this situation, bringing up the wifi interface will fail and a system reboot may be needed to make it work again. This problem is obseved with QCA99X0. To fix this issue, allocate the DMA memory requested by firmware during device probe time and keep it during the life time of the device. WMI service ready event handler is changed to allocate the memory chunks if it is not already allocated or if the memory allocated for the previous ready event is not same as the current requested ones. After this patch the memory usage when wifi is inactive will be inceased by few 100KB to 3MB based on the target type. Failure happens with the following stack trace [29557.488773] kworker/u4:1: page allocation failure: order:8, mode:0xd0 [29557.494297] CPU: 0 PID: 8402 Comm: kworker/u4:1 Not tainted 3.14.43 #7 [29557.500793] Workqueue: ath10k_aux_wq ath10k_wmi_event_service_ready_work [ath10k_core] [29557.508602] [<c021e9b0>] (unwind_backtrace) from [<c021ba90>] (show_stack+0x10/0x14) [29557.516580] [<c021ba90>] (show_stack) from [<c03bdddc>] (dump_stack+0x88/0xcc) [29557.523612] [<c03bdddc>] (dump_stack) from [<c0290e34>] (warn_alloc_failed+0xdc/0x108) [29557.531515] [<c0290e34>] (warn_alloc_failed) from [<c0292d88>] (__alloc_pages_nodemask+0x4f0/0x654) [29557.540485] [<c0292d88>] (__alloc_pages_nodemask) from [<c0222b48>] (__dma_alloc_buffer.isra.20+0x2c/0x104) [29557.550260] [<c0222b48>] (__dma_alloc_buffer.isra.20) from [<c0222c34>] (__alloc_remap_buffer.isra.23+0x14/0xb8) [29557.560413] [<c0222c34>] (__alloc_remap_buffer.isra.23) from [<c022305c>] (__dma_alloc+0x224/0x2b8) [29557.569490] [<c022305c>] (__dma_alloc) from [<c0223208>] (arm_dma_alloc+0x84/0x90) [29557.577010] [<c0223208>] (arm_dma_alloc) from [<bf5159d0>] (ath10k_wmi_event_service_ready_work+0x2f8/0x420 [ath10k_core]) [29557.588055] [<bf5159d0>] (ath10k_wmi_event_service_ready_work [ath10k_core]) from [<c024260c>] (process_one_work+0x20c/0x328) [29557.599305] [<c024260c>] (process_one_work) from [<c02432d0>] (worker_thread+0x228/0x360) [29557.607470] [<c02432d0>] (worker_thread) from [<c0247f88>] (kthread+0xd8/0xec) [29557.614750] [<c0247f88>] (kthread) from [<c0208d18>] (ret_from_fork+0x14/0x3c) [29557.712751] Normal: 696*4kB (UEMR) 512*8kB (UEMR) 367*16kB (UEMR) 404*32kB (UEMR) 455*64kB (UEMR) 424*128kB (UEMR) 379*256kB (UMR) 327*512kB (UMR) 1*1024kB (R) 0*2048kB 0*4096kB = 374544kB Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-09ath10k: fix mu-mimo rx status reportingMichal Kazior1-2/+22
MU-MIMO Rx involves different interpretation of the VHT-SIG-A compared to SU-MIMO. The incorrect interpretation led ath10k to report VHT MCS values greater than 9 which subsequently prompted mac80211 to drop such frames. This effectively broke Rx with MU-MIMO in many cases and manifested with a kernel warning in the log which looked like this: [ 14.552520] WARNING: CPU: 2 PID: 0 at net/mac80211/rx.c:3578 ieee80211_rx+0x26c/0x940 [mac80211]() [ 14.552522] Rate marked as a VHT rate but data is invalid: MCS: 10, NSS: 2 ... call trace follows ... Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-09-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds74-1017/+5640
Pull networking updates from David Miller: "Another merge window, another set of networking changes. I've heard rumblings that the lightweight tunnels infrastructure has been voted networking change of the year. But what do I know? 1) Add conntrack support to openvswitch, from Joe Stringer. 2) Initial support for VRF (Virtual Routing and Forwarding), which allows the segmentation of routing paths without using multiple devices. There are some semantic kinks to work out still, but this is a reasonably strong foundation. From David Ahern. 3) Remove spinlock fro act_bpf fast path, from Alexei Starovoitov. 4) Ignore route nexthops with a link down state in ipv6, just like ipv4. From Andy Gospodarek. 5) Remove spinlock from fast path of act_gact and act_mirred, from Eric Dumazet. 6) Document the DSA layer, from Florian Fainelli. 7) Add netconsole support to bcmgenet, systemport, and DSA. Also from Florian Fainelli. 8) Add Mellanox Switch Driver and core infrastructure, from Jiri Pirko. 9) Add support for "light weight tunnels", which allow for encapsulation and decapsulation without bearing the overhead of a full blown netdevice. From Thomas Graf, Jiri Benc, and a cast of others. 10) Add Identifier Locator Addressing support for ipv6, from Tom Herbert. 11) Support fragmented SKBs in iwlwifi, from Johannes Berg. 12) Allow perf PMUs to be accessed from eBPF programs, from Kaixu Xia. 13) Add BQL support to 3c59x driver, from Loganaden Velvindron. 14) Stop using a zero TX queue length to mean that a device shouldn't have a qdisc attached, use an explicit flag instead. From Phil Sutter. 15) Use generic geneve netdevice infrastructure in openvswitch, from Pravin B Shelar. 16) Add infrastructure to avoid re-forwarding a packet in software that was already forwarded by a hardware switch. From Scott Feldman. 17) Allow AF_PACKET fanout function to be implemented in a bpf program, from Willem de Bruijn" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1458 commits) netfilter: nf_conntrack: make nf_ct_zone_dflt built-in netfilter: nf_dup{4, 6}: fix build error when nf_conntrack disabled net: fec: clear receive interrupts before processing a packet ipv6: fix exthdrs offload registration in out_rt path xen-netback: add support for multicast control bgmac: Update fixed_phy_register() sock, diag: fix panic in sock_diag_put_filterinfo flow_dissector: Use 'const' where possible. flow_dissector: Fix function argument ordering dependency ixgbe: Resolve "initialized field overwritten" warnings ixgbe: Remove bimodal SR-IOV disabling ixgbe: Add support for reporting 2.5G link speed ixgbe: fix bounds checking in ixgbe_setup_tc for 82598 ixgbe: support for ethtool set_rxfh ixgbe: Avoid needless PHY access on copper phys ixgbe: cleanup to use cached mask value ixgbe: Remove second instance of lan_id variable ixgbe: use kzalloc for allocating one thing flow: Move __get_hash_from_flowi{4,6} into flow_dissector.c ixgbe: Remove unused PCI bus types ...
2015-08-26Merge ath-next from ath.gitKalle Valo16-95/+348
Major changes in ath10k: * add spectral scan support for qca99x0 * add qca6164 support
2015-08-26ath10k: fix compilation warnings in wmi phyerr pull functionRaja Mani1-2/+2
Below compilation warnings are observed in gcc version 4.8.2. Even though it's not seen in bit older gcc versions (for ex, 4.7.3), It's good to fix it by changing format specifier from %d to %zd in wmi pull phyerr functions. wmi.c: In function 'ath10k_wmi_op_pull_phyerr_ev': wmi.c:3567:8: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] left_len, sizeof(*phyerr)); ^ wmi.c: In function 'ath10k_wmi_10_4_op_pull_phyerr_ev': wmi.c:3612:8: warning: format '%d' expects argument of type 'int', but argument 4 has type 'long unsigned int' [-Wformat=] left_len, sizeof(*phyerr)); ^ Fixes: 991adf71a6cd ("ath10k: refactor phyerr event handlers") Fixes: 2b0a2e0d7c2f ("ath10k: handle 10.4 firmware phyerr event") Signed-off-by: Raja Mani <rmani@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-08-26ath10k: add qca6164 supportMichal Kazior3-0/+25
This adds additional 0x0041 PCI Device ID definition to ath10k for QCA6164 which is a 1 spatial stream sibling of the QCA6174 (which is 2 spatial stream chip). The QCA6164 needs a dedicated board.bin file which is different than the one used for QCA6174. If the board.bin is wrong the device will crash early while trying to boot firmware. The register dump will look like this: ath10k_pci 0000:02:00.0: firmware register dump: ath10k_pci 0000:02:00.0: [00]: 0x05010000 0x000015B3 0x000A012D 0x00955B31 ... Note the value 0x000A012D. Special credit goes to Alan Liu <alanliu@qca.qualcomm.com> for providing support help which enabled me to come up with this patch. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-08-26ath10k: add spectral scan support for 10.4 fwRaja Mani2-0/+11
To enable/configure spectral scan parameters in 10.4 firmware, existing wmi spectral related functions can be reused. Link those functions in 10.4 wmi ops table. In addition, adjust bin size (only when size is 68 bytes) before reporting bin samples to user space. The background for this adjustment is that qca99x0 reports bin size as 68 bytes (64 bytes + 4 bytes) in report mode 2. First 64 bytes carries in-band tones (-32 to +31) and last 4 byte carries band edge detection data (+32) mainly used in radar detection purpose. Additional last 4 bytes are stripped to make bin size valid one. This bin size adjustment will happen only for qca99x0, all other chipsets will report proper bin sizes (64/128) without extra 4 bytes being added at the end. The changes are validated in qca99x0 using 10.4 firmware. Signed-off-by: Raja Mani <rmani@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-08-26ath10k: fix dma_mapping_error() handlingMichal Kazior4-5/+16
The function returns 1 when DMA mapping fails. The driver would return bogus values and could possibly confuse itself if DMA failed. Fixes: 767d34fc67af ("ath10k: remove DMA mapping wrappers") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-08-26ath10k: add missing mutex unlock on failpathMichal Kazior1-1/+2
Kernel would complain about leaving a held lock after going back to userspace and would subsequently deadlock. Fixes: e04cafbc38c7 ("ath10k: fix peer limit enforcement") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>