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path: root/drivers/net/wireless/ath
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2013-10-24ath10k: use proper tx power unitMichal Kazior2-10/+11
It was previously thought that FW expects tx power in quarters of dBm. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-24ath10k: setup min channel power to a reasonable valueMichal Kazior1-3/+3
This will be needed for proper support of (user) configurable tx power level. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-24ath10k: Initialize list-head on vif creation.Ben Greear1-0/+1
If the creation fails, this keeps us from crashing later when trying to do a list_del(arvif->list). Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-12/+11
Conflicts: drivers/net/usb/qmi_wwan.c include/net/dst.h Trivial merge conflicts, both were overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-21ath10k: add error handling to ath10k_pci_wait()Kalle Valo1-4/+24
ath10k_pci_wait() didn't notify any errors to callers, it just printed a warning so add proper error handling. This fixes a crash Ben reported: ath10k: MSI-X interrupt handling (8 intrs) ath10k: Unable to wakeup target ath10k: target took longer 5000 us to wake up (awake count 1) ath10k: Failed to get pcie state addr: -16 ath10k: early firmware event indicated BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 IP: [<ffffffffa06ae46c>] ath10k_ce_completed_send_next+0x47/0x122 [ath10k_pci] Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: fix FW crashes on heavy TX on 10.1.389 AP FWMichal Kazior2-7/+15
10.1.389 firmware has some differences in calculation of number of outstanding HTT TX completions. This led to FW crashes of 10.1.389 while main firmware branch was unnaffected. The patch makes sure ath10k doesn't queue up more MSDUs than it should. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: implement ath10k_pci_soc_read/write32()Kalle Valo2-2/+11
To make it easier to access SOC registers. No functional changes. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: fix NULL deref upon early FW crashMichal Kazior2-2/+3
If firmware crashes during FW probing it would try to perform FW recovery which uses mac80211 workqueue before registering to mac80211. Using internal workqueue solves the problem. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: fix NSS reporting in RXMichal Kazior1-1/+1
NSTS values reported in the VHT-SIG-A1 are 0 through 7 but they actually describe number of streams 1 through 8. 1SS frames were dropped. This patch fixes this. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: fix endianess in printsMichal Kazior1-8/+8
This fixes incorrect values being printed on big-endian hosts. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: add sanity checks for monitor managementMichal Kazior1-0/+15
Add a few checks and warnings to make it easier to track any kind of monitor vdev mismanagement. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-21ath10k: prevent starting monitor without a vdevMichal Kazior1-2/+8
This fixes issue with interface bridging. Linux bridging sets promiscuous mode for all interfaces that are in a bridge. This translates to configure_filter() being called in a mac80211 driver. Before the patch operational interface would be started and upped again when promiscuous mode was enabled causing all sorts of strange issues: * no HTT RX happening (i.e. no traffic) * FW crash upon driver reload/unload Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-18ath9k: add TX99 supportLuis R. Rodriguez12-17/+522
TX99 support enables Specific Absorption Rate (SAR) testing. SAR is the unit of measurement for the amount of radio frequency(RF) absorbed by the body when using a wireless device. The RF exposure limits used are expressed in the terms of SAR, which is a measure of the electric and magnetic field strength and power density for transmitters operating at frequencies from 300 kHz to 100 GHz. Regulatory bodies around the world require that wireless device be evaluated to meet the RF exposure limits set forth in the governmental SAR regulations. In the examples below, for more bit rate options see the iw TX bitrate setting documentation: http://wireless.kernel.org/en/users/Documentation/iw#Modifying_transmit_bitrates Example usage: iw phy phy0 interface add moni0 type monitor ip link set dev moni0 up iw dev moni0 set channel 36 HT40+ iw set bitrates mcs-5 4 echo 10 > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99_power echo 1 > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99 Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: check for NULL rate when using ieee80211_get_rts_cts_rate()Luis R. Rodriguez1-0/+3
ieee80211_get_rts_cts_rate() can return NULL, so don't rely on its members when it does return NULL. Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com> Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath: add support for proper dynamic regulatory hintsLuis R. Rodriguez2-0/+101
This enables support for dynamic user regulatory hints. This is enabled only when CFG80211_CERTIFICATION_ONUS is selected. For US and JP this is explicitly disabled unless the systems are being used for strict controlled testing. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath: split user and driver reguluatory hint parsingLuis R. Rodriguez1-0/+1
On the regulatory notifier split up the parsing of the hints coming from drivers or user. We'll treat these separately. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath: move common dynamic regulatory domain setting to a helperLuis R. Rodriguez1-18/+37
This moves the dynamic regulatory domain selection code into a helper. Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k/ath: move dfs pattern detector to athJanusz Dziedzic8-8/+8
Move the DFS pattern detector code to the ath module so the other Atheros drivers can make us of it. This makes no functional changes. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: dfs use CFG80211_CERTIFICATION_ONUS flagJanusz Dziedzic2-10/+3
Use CFG80211_CERTIFICATION_ONUS flag in the DFS detector code. This is required as a preparation for moving DFS detector code from ath9k to ath module. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: dfs move ath_dfs_pool_statsJanusz Dziedzic6-21/+35
Move ath_dfs_pool_stats to dfs_pattern_detector code to be not specyfic only for ath9k. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: dfs kill ath9k specyfic codeJanusz Dziedzic3-12/+13
Kill of using ath9k_hw_common() function in dfs detector code. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: add HT40 spectral scan capabilityLorenzo Bianconi2-38/+137
Add spectral scan feature on HT40 channels for ath9k. This patch extends previous capability added by Simon Wunderlich Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Reviewed-by: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> Tested-by: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18ath9k: add noise floor parameter to ath9k_hw_getchan_noiseLorenzo Bianconi4-8/+10
Add nf parameter to ath9k_hw_getchan_noise() in order to compute NF for EXT chains with the same scale of noise floor calculated on CTL chains. ath9k_hw_getchan_noise() will be used in ath_process_fft() for spectral scan on HT40 channels Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-18Merge branch 'for-linville' of git://github.com/kvalo/athJohn W. Linville15-388/+2674
2013-10-18ath5k: fix regression in tx status processingFelix Fietkau1-3/+3
The regression was introduced in the following commit: 0967e01e8e713ed2982fb4eba8ba13794e9a6e89 "ath5k: make use of the new rate control API" ath5k_tx_frame_completed saves the intended per-rate retry counts before they are cleared by ieee80211_tx_info_clear_status, however at this point the information in info->status.rates is incomplete. This causes significant throughput degradation and excessive packet loss on links where high bit rates don't work properly. Move the copy from bf->rates a few lines up to ensure that the saved retry counts are updated, and that they are really cleared in info->status.rates after the call to ieee80211_tx_info_clear_status. Cc: stable@vger.kernel.org # 3.10+ Cc: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Cc: Benjamin Vahl <bvahl@net.t-labs.tu-berlin.de> Reported-by: Ben West <ben@gowasabi.net> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-17Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davemJohn W. Linville36-497/+10377
2013-10-16ath10k: add might_sleep() to ath10k_wmi_cmd_send()Kalle Valo1-0/+2
ath10k_wmi_cmd_send() will now sleep if there are no credits available. To make it easier to catch callers in atomic context add might_sleep() to the function. Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: fix ath10k_bss_assoc() to not sleep in atomic contextKalle Valo1-19/+37
ath10k_bss_assoc() was calling ath10k_peer_assoc(), which can sleep, under atomic rcu_read_lock() and causing scheduing while atomic errors. Workaround that by delaying the call to ath10k_wmi_peer_assoc(). Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: remove unnecessary checksMichal Kazior1-21/+0
mac80211 interface iteration functions that were used originally iterated over interfaces that weren't re-added to the driver during recovery. Since internal vif list is now used it's safe to remove the safe-guard as internal vif list is based on add/remove_interface function which guarantees that vdev is created in FW before it is iterated over. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: fix scheduling while atomic config bugMichal Kazior1-84/+62
Recent HTC/WMI changes introduced the bug. ath10k was using _atomic iteration function with sleepable functions. mac80211 provides another iteration function but it cannot be safely called in hw_config() callback due to local->iflist_mtx being possibly acquired already. The patch uses internal vif list for iteration purposes and removes/refactors no longer necessary _iter functions. Reported-By: Kalle Valo <kvalo@qca.qualcomm.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: track vif list internallyMichal Kazior3-0/+7
mac80211 interface interations functions have peculiar locking issues. This patch introduces internal (to ath10k) vif list that will be used for vif iteration purposes. kvalo: remove extra INIT_LIST_HEAD() Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: fix add_interface failure handlingMichal Kazior1-13/+40
If something failed along add_interface() setup it was possible to leak a vdev id, vdev and peer. This could end up with leaked FW state or FW crash (assuming add_interface() failure wasn't a result of a crash). kvalo: rebased, whitespace fixes Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: use workqueue to set WEP TX keyMichal Kazior2-18/+39
Recent WMI/HTC changes made it possible for WMI commands to sleep (if there's not enough HTC TX credits to submit a command). TX path is in an atomic context so calling WMI commands in it is wrong. This simply moves WEP key index update to a worker and fixes the 'scheduling while atomic' bug. This still leaves multiple WEP key handling laggy, i.e. some frames may be TXed with an old/different key (although recipient should still be able to RX them). kvalo: changed the title Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: return better errno for unsupported pdev paramsBartosz Markowski1-1/+1
Return -EOPNOTSUPP if given parameter is not supported by firmware. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: rename WMI_CMD_UNDEFINEDBartosz Markowski2-24/+24
Rename WMI_CMD_UNDEFINED to WMI_CMD_UNSUPPORTED. This is more accurate here. Also return -EOPNOTSUPP instead of -EINVAL in wmi_cmd_send(). Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-16ath10k: do not warn about unsupported vdev paramBartosz Markowski2-2/+3
10.X firmware does not support WMI_VDEV_PARAM_TX_ENCAP_TYPE. It's a known limitation and we should not warn about this. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-10-14ath9k_hw: remove references to hw->confFelix Fietkau5-20/+15
Accessing it to get the current operating channel is racy and in the way of further channel handling related changes Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: make ath9k_uses_beacons staticFelix Fietkau2-2/+1
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: remove sc->config.cabqReadyTimeFelix Fietkau4-12/+1
It is not exposed as a configuration option anyway Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: move channel change code to ath_set_channelFelix Fietkau1-72/+78
Preparation for adding the scanning state machine to ath9k Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: make ath9k_cmn_update_ichannel staticFelix Fietkau5-21/+17
Rework its wrapper function to make it more generic, using it as a replacement for previous calls to ath9k_cmn_update_ichannel. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: simplify channel flagsFelix Fietkau4-128/+48
There was some duplication between channelFlags and chanmode, as well as a lot of redundant checks based on the combinations of flags. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove IS_CHAN_OFDM()Felix Fietkau2-7/+2
The hardware is always configured with OFDM support enabled Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove IS_CHAN_B()Felix Fietkau6-22/+13
Hardware 802.11b-only mode isn't supported by the driver (the device is configured for 802.11n/g instead). Simplify the code by removing checks for it. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k_hw: remove direct accesses to channel mode flagsFelix Fietkau9-169/+49
Use wrappers where available. Simplifies code and helps with further improvements to the channel data structure Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14ath9k: use a separate data structure for rx buffersFelix Fietkau3-48/+90
There's no shared code for handling both rx and tx buffers, and tx buffers require a lot more metadata than rx buffers. Using a separate data structure for rx reduces memory usage and improves cache footprint. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14wcn36xx: fix coccinelle warningsFengguang Wu1-9/+2
drivers/net/wireless/ath/wcn36xx/debug.c:27:11-31: WARNING opportunity for simple_open, see also structure on line 106 /c/kernel-tests/src/i386/drivers/net/wireless/ath/wcn36xx/debug.c:27:11-31: WARNING opportunity for simple_open, see also structure on line 148 This removes an open coded simple_open() function and replaces file operations references to the function with simple_open() instead. Generated by: coccinelle/api/simple_open.cocci CC: Eugene Krasnikov <k.eugene.e@gmail.com> CC: John W. Linville <linville@tuxdriver.com> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-10-14treewide: fix "usefull" typoMichael Opdenacker1-1/+1
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-14treewide: Fix typo in printkMasanari Iida1-1/+1
Correct spelling typo within various part of the kernel Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-10-10wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardwareEugene Krasnikov17-0/+10074
This is a mac80211 driver for Qualcomm WCN3660/WCN3680 devices. So far WCN3660/WCN3680 is available only on MSM platform. Firmware can be found here: https://www.codeaurora.org/cgit/external/hisense/platform/vendor/qcom-opensource/wlan/prima/tree/firmware_bin?h=8130_CS Wiki page is available here: http://wireless.kernel.org/en/users/Drivers/wcn36xx A lot people made a contribution to this driver. Here is the list in alphabetical order: Eugene Krasnikov <k.eugene.e@gmail.com> Kalle Valo <kvalo@qca.qualcomm.com> Olof Johansson <dev@skyshaper.net> Pontus Fuchs <pontus.fuchs@gmail.com> Yanbo Li <yanbol@qti.qualcomm.com> Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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