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2016-01-28ath10k: make some of ath10k_pci_* func reusableRaja Mani2-32/+63
Some of static functions present in pci.c file are reusable in ahb (qca4019) case. Remove static word for those reusable functions and have those function prototype declaration in pci.h file. So that, pci.h header file can be included in ahb module and reused. There is no functionality changes done in this patch. Signed-off-by: Raja Mani <rmani@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-28ath10k: implement basic support for new tx path firmwareMichal Kazior3-9/+91
This allows to use the new firmware which implements the new tx data path. Without this patch firmware supporting new tx path stops responding shortly after booting. This patch doesn't implement the entire pull-push logic available in the new firmware. This will be done in subsequent patches. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-28ath10k: clean up cont frag desc init codeMichal Kazior1-17/+41
This makes the code easier to extend and re-use. While at it fix _warn to _err. Other than that there are no functional changes. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-28ath10k: add new FW_FEATURE_PEER_FLOW_CONTROLMichal Kazior2-0/+10
This feature flag will be used for firmware which supports pull-push model where host shares it's software queue state with firmware and firmware generates fetch requests telling host which queues to dequeue tx from. Primary function of this is improved MU-MIMO performance with multiple clients. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-28ath10k: add new htt definitionsMichal Kazior1-3/+150
These definitions are associated with some improvements upcomming for 10.4 and QCA99X0. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-28ath10k: rename some HTT eventsMichal Kazior3-10/+10
New names make a bit more sense. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: fix data bus error on ar9300 and ar9580Miaoqing Pan2-1/+13
One crash issue be found on ar9300: RTC_RC reg read leads crash, leading the data bus error, due to RTC_RC reg write not happen properly. Warm Reset trigger in continuous beacon stuck for one of the customer for other chip, noticed the MAC was stuck in RTC reset. After analysis noticed DMA did not complete when RTC was put in reset. So, before resetting the MAC need to make sure there are no pending DMA transactions because this reset does not reset all parts of the chip. The 12th and 11th bit of MAC _DMA_CFG register used to do that. 12 cfg_halt_ack 0x0 0 DMA has not yet halted 1 DMA has halted 11 cfg_halt_req 0x0 0 DMA logic operates normally 1 Request DMA logic to stop so software can reset the MAC The Bit [12] of this register indicates when the halt has taken effect or not. the DMA halt IS NOT recoverable; once software sets bit [11] to request a DMA halt, software must wait for bit [12] to be set and reset the MAC. So, the same thing we implemented for ar9580 chip. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: fix inconsistent use of tab and space in indentationMiaoqing Pan1-3/+3
Minor changes for indenting. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: do not reset while BB panic(0x4000409) on ar9561Miaoqing Pan1-2/+3
BB panic(0x4000409) observed while AP enabling/disabling bursting. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: clean up ANI per-channel pointer checkingMiaoqing Pan1-26/+6
commit c24bd3620c50 ("ath9k: Do not maintain ANI state per-channel") removed per-channel handling, the code to check 'curchan' also should be removed as never used. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: avoid ANI restart if no triggerMiaoqing Pan1-1/+3
Fixes commit 54da20d83f0e ("ath9k_hw: improve ANI processing and rx desensitizing parameters") Call ath9k_ani_restart() only when the phy error rate reach the ANI immunity threshold. Sync the logic with internal code base. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: Drop useless const on chanctx_event_delta() return typeGeert Uytterhoeven1-1/+1
drivers/net/wireless/ath/ath9k/channel.c:230: warning: type qualifiers ignored on function return type Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k_hw: add low power tx gain table for AR953xFelix Fietkau2-0/+68
Used in some newer TP-Link AR9533 devices. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26wil6210: handle multiple connect/disconnect eventsMaya Erez4-93/+156
In the current solution wil6210 configures the vring in a worker and holds only one pending CID. This implementation may lead to race conditions between connect and disconnect events of multiple stations or fast connect/disconnect events of the same station. In order to allow the removal of the connect worker and handling of WMI_VRING_CFG_DONE_EVENTID in the connect event, the WMI replies that provide the reply in a given buffer needs to be handled immediately in the WMI event interrupt thread. To prevent deadlocks, WMI replies that requires additional handling are still handled via the events list. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26wil6210: find TX vring only if vring_tx_data is enabledMaya Erez1-5/+12
In TX vring allocation, vring_tx->va is allocated before WMI command to configure the vring is sent to the device. As the WMI command can take time to complete, it can lead to scenarios where vring_tx->va is not NULL but vring is still not enabled. This patch adds a check that vring_tx_data is enabled before returning a valid TX vring. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26wil6210: handle tx completions only if vring tx data is enabledMaya Erez1-2/+3
wil_vring_fini_tx is called in disconnect in order to free the allocated vrings. wil_vring_fini_tx is disabling the vring_tx_data before napi_synchronize is called in order to avoid the tx handling of this vring, while wil_vring_free is called only after napi finished the current handling of the tx completed packets. Due to that, in case of disconnect, wil6210_netdev_poll_tx can be called when vring->va is not NULL but vring_tx_data[i]->enabled is already disabled. This patch checks vring_tx_data[i]->enabled in wil6210_netdev_poll_tx to prevent handling of disabled vrings. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26wil6210: use extra IEs from probe responseLior David1-39/+102
In the start_ap/change_beacon API, when we set up probe response offloading, we only use the IE list from the probe response template and not the IE list from the proberesp_ies argument. As a result, we miss important IEs and it causes problems with some scenarios such as P2P. With this change, we merge the list of IEs from the probe response template and proberesp_ies and send the merged list to the FW for offloading. It is still FW responsibility to filter out irrelevant IEs when sending probe response, based on the actual contents of the probe request. Also in case association response termplate is not provided, we will use the merged list of IEs from probe response in the association response as well. Signed-off-by: Lior David <qca_liord@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26wil6210: fix privacy flag calculation in change_beaconLior David1-4/+4
Currently the privacy flag calculation in change_beacon checks for RSN IE inside proberesp_ies, but normally it is not found there. It works today because of code inside the function wil_fix_bcon, but wil_fix_bcon is not directly related to change_beacon, and it may be changed or removed in the future and break the calculation. To fix this issue, change the privacy flag calculation to check RSN IE inside the beacon itself. The new check is more reliable and will not be sensitive to changes in wil_fix_bcon. Signed-off-by: Lior David <qca_liord@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k_htc: add device ID for Toshiba WLM-20U2/GN-1080Alexander Tsoy1-0/+2
This device is available under different marketing names: WLM-20U2 - Wireless USB Dongle for Toshiba TVs GN-1080 - Wireless LAN Module for Toshiba MFPs. Signed-off-by: Alexander Tsoy <alexander@tsoy.me> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath9k: request NOA update when chanctx activeKalle Valo2-2/+5
Request NOA update when chanctx active, also in case of STA. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: remove the p2p notice of absence info from 10.2.4 FW beacon infoYanbo Li2-1/+55
The p2p NOA never been supported at 10.2.4 FW, remove it to avoid SWBA event parse error for multi beacon interval case. Signed-off-by: Yanbo Li <yanbol@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: add debugfs support for Per STA total rx durationMohammed Shafi Shajakhan4-3/+54
Add debugfs support for per client total rx duration, track this via the report of Peer stats rx duration reported for every 500ms Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: enable periodic peer stats updateMohammed Shafi Shajakhan1-0/+12
Register for 500ms as periodic peer stats update period, and parameters like rx_duration that needs to be tracked in host can be achieved by this provision, also periodic stats update is the future of fw_stats and shall be extended for pdev / vdev stats irrespecitive PEER_STATS service is enabled or not Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> [kvalo@qca.qualcomm.com: fix a checkpatch warning] Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: provision to support periodic peer stats updateMohammed Shafi Shajakhan1-1/+4
Enable support for periodic peer stats update when peer stats service is enabled. The host to update the peer stats received from the firmware periodically, since firmware will reset this to zero after sometime (due to memory constraints) While enabling periodic peer / vdev stats cleanup the existing list in debugfs if max limit is reached, so that the new stats is updated. Ideally speaking based on 'Michal Kazior's' suggestion we need to completely move to periodic update of all the stats making the 'ping - pong' method obselete. This requires a bit of re-work and some testing as well, also confirmation regarding backward comptability for various firmware and chipsets. Hence allow periodic update only for peer_stats. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: rename few function names of firmware statsMohammed Shafi Shajakhan1-9/+9
Prerequisite patch to address checkpatch errors for the next patch in this series, this function names are bit too long, make it short Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: cleanup setting pdev paramatersMohammed Shafi Shajakhan1-9/+11
Replace the local variable 'burst_enable' with 'param' for mapping and setting pdev paraemeters and with this patch pretty easy to extend support for new parameters adhering to linux kernel coding guidelines Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-26ath10k: fix naming Peer stats rssi_changed field in 10.2.4Mohammed Shafi Shajakhan1-1/+1
Fix naming of peer stats rssi_changed field in 10.2.4 to make it more readable. As of now this field is not used, but necessary to pull in fw_stats with appropriate length. Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-25ath9k_hw: ignore eeprom magic mismatch on flash based devicesFelix Fietkau1-6/+6
Many AR913x based devices (maybe others too) do not have a valid EEPROM magic in their calibration data partition. Fixes: 6fa658fd5ab2 ("ath9k: Simplify and fix eeprom endianness swapping") Signed-off-by: Felix Fietkau <nbd@openwrt.org> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-21ath10k: add support for parsing per STA rx_duration for 10.2.4Mohammed Shafi Shajakhan3-2/+33
Add support for parsing 'peer_rx_duration' as part of 10.2.4 peer_stats. Also register PEER_STATS service for parsing 'rx_duration' (and for any new fields to be added as part of peer_stats). Have checks for backward compatibility with older 10.2.4 firmware incase PEER_STATS service is not enabled Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-21ath10k: prevent txrx running for too longMichal Kazior1-1/+9
On multicore systems it was possible for the txrx tasklet to keep on running for long periods of time on a single CPU due to tx completion processing. Another CPU could feed the running tasklet for an indefinite amount of time. The tasklet is now guaranteed to run a finite amount of time and is limited by HTT CE Rx ring depth. This improves behavior when RPS is used on target system and might improve TCP handling as well. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-20Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuildLinus Torvalds1-1/+1
Pull kbuild updates from Michal Marek: - Make <modname>-m in makefiles work like <modname>-y and fix the fallout - Minor genksyms fix - Fix race with make -j install modules_install - Move -Wsign-compare from make W=1 to W=2 - Other minor fixes * 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kbuild: Demote 'sign-compare' warning to W=2 Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially kbuild: Do not run modules_install and install in paralel genksyms: Handle string literals with spaces in reference files fixdep: constify strrcmp arguments ath10k: Fix build with CONFIG_THERMAL=m Revert "drm: Hack around CONFIG_AGP=m build failures" kbuild: Allow to specify composite modules with modname-m staging/ad7606: Actually build the interface modules
2016-01-14mac80211: pass block ack session timeout to to driverSara Sharon5-15/+23
Currently mac80211 does not inform the driver of the session block ack timeout when starting a rx aggregation session. Drivers that manage the reorder buffer need to know this parameter. Seeing that there are now too many arguments for the drv_ampdu_action() function, wrap them inside a structure. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-01-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds57-530/+1379
Pull networking updates from Davic Miller: 1) Support busy polling generically, for all NAPI drivers. From Eric Dumazet. 2) Add byte/packet counter support to nft_ct, from Floriani Westphal. 3) Add RSS/XPS support to mvneta driver, from Gregory Clement. 4) Implement IPV6_HDRINCL socket option for raw sockets, from Hannes Frederic Sowa. 5) Add support for T6 adapter to cxgb4 driver, from Hariprasad Shenai. 6) Add support for VLAN device bridging to mlxsw switch driver, from Ido Schimmel. 7) Add driver for Netronome NFP4000/NFP6000, from Jakub Kicinski. 8) Provide hwmon interface to mlxsw switch driver, from Jiri Pirko. 9) Reorganize wireless drivers into per-vendor directories just like we do for ethernet drivers. From Kalle Valo. 10) Provide a way for administrators "destroy" connected sockets via the SOCK_DESTROY socket netlink diag operation. From Lorenzo Colitti. 11) Add support to add/remove multicast routes via netlink, from Nikolay Aleksandrov. 12) Make TCP keepalive settings per-namespace, from Nikolay Borisov. 13) Add forwarding and packet duplication facilities to nf_tables, from Pablo Neira Ayuso. 14) Dead route support in MPLS, from Roopa Prabhu. 15) TSO support for thunderx chips, from Sunil Goutham. 16) Add driver for IBM's System i/p VNIC protocol, from Thomas Falcon. 17) Rationalize, consolidate, and more completely document the checksum offloading facilities in the networking stack. From Tom Herbert. 18) Support aborting an ongoing scan in mac80211/cfg80211, from Vidyullatha Kanchanapally. 19) Use per-bucket spinlock for bpf hash facility, from Tom Leiming. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1375 commits) net: bnxt: always return values from _bnxt_get_max_rings net: bpf: reject invalid shifts phonet: properly unshare skbs in phonet_rcv() dwc_eth_qos: Fix dma address for multi-fragment skbs phy: remove an unneeded condition mdio: remove an unneed condition mdio_bus: NULL dereference on allocation error net: Fix typo in netdev_intersect_features net: freescale: mac-fec: Fix build error from phy_device API change net: freescale: ucc_geth: Fix build error from phy_device API change bonding: Prevent IPv6 link local address on enslaved devices IB/mlx5: Add flow steering support net/mlx5_core: Export flow steering API net/mlx5_core: Make ipv4/ipv6 location more clear net/mlx5_core: Enable flow steering support for the IB driver net/mlx5_core: Initialize namespaces only when supported by device net/mlx5_core: Set priority attributes net/mlx5_core: Connect flow tables net/mlx5_core: Introduce modify flow table command net/mlx5_core: Managing root flow table ...
2016-01-07wcn36xx: split DMA mask register writing.Fengwei Yin1-1/+1
Per comments from Bjorn Andersson <bjorn.andersson@sonymobile.com>, split DMA mask register writing as seperate patch in case we need bi-sect in the furture. Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07wcn36xx: handle rx skb allocation failure to avoid system crashFengwei Yin1-20/+21
Lawrence reported that git clone could make system crash on a Qualcomm ARM soc based device (DragonBoard, 1G memory without swap) running 64bit Debian. It's turned out the crash is related with rx skb allocation failure. git could consume more than 600MB anonymous memory. And system is in extremely memory shortage case. But driver didn't handle the rx allocation failure case. This patch doesn't submit skb to upper layer if rx skb allocation fails. Instead, it reuse the old skb for rx DMA again. It's more like drop the packets if system is in memory shortage case. With this change, git clone is OOMed instead of system crash. Reported-by: King, Lawrence <lking@qti.qualcomm.com> Signed-off-by: Fengwei Yin <fengwei.yin@linaro.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07ath9k: fix ath9k_hw_nvram_check_version()Dan Carpenter1-1/+1
There is a type bug so it always returns success. Fixes: 6fa658fd5ab2 ('ath9k: Simplify and fix eeprom endianness swapping') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07ath9k: Enable support for cloned SKBSPawel Kulakowski1-0/+1
Ath9k driver does not modify tx skbs, so SUPPORTS_CLONED_SKBS flag can be set. Enabling this flag significant reduce number of copy operation during TCP Tx. This is especially noticeable on platforms with slower CPU (lower CPU usage brings profits in better TCP Tx troughput results). Tested on MIPS with 560 MHz clock Without CLONED_SKBS flag: TCP Tx 145 Mb/s (iperf result) __copy_user_common consumes 12.9% of CPU (result from perf tool) 0% CPU Idle With CLONED_SKBS flag: TCP Tx 170 Mb/s (iperf result) __copy_user_common consumes 1.8% of CPU (result from perf tool) 12% CPU Idle Signed-off-by: Pawel Kulakowski <pawel.kulakowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07wil6210: support for platform specific crash recoveryLior David6-10/+73
Added a simple interface for platform to perform crash recovery. When firmware crashes, wil driver can notify the platform which can trigger a crash recovery process. During the process the platform can request a ram dump from the wil driver as well as control when firmware recovery will start. This interface allows the platform to implement a more advanced crash recovery, for example to reset dependent subsystems in proper order, or to provide its own notifications during the recovery process. Signed-off-by: Lior David <qca_liord@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07wil6210: fix kernel OOPS when stopping interface during Rx trafficHamad Kadmany1-1/+11
When network interface is stopping, some resources may be already released by the network stack, and Rx frames cause kernel OOPS (observed one is in netfilter code) Proper solution is to drop packets pending in reorder buffer. Signed-off-by: Hamad Kadmany <qca_hkadmany@qca.qualcomm.com> Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-07ath10k: set SM power save disabled to default valuePeter Oh1-1/+2
Use SMPS disabled as default because FW does not indicate any support of SMPS. This change will help STAs out that don’t support SMPS from sticking on 1SS, since they don’t have method to change it back to multiple chains. This change also should not affect power consumption of STAs supporting SMPS, because they are capable to switch the mode to dynamic or static either at the end of frame sequence or by using SMPS action frame. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-01-04convert a bunch of open-coded instances of memdup_user_nul()Al Viro1-9/+3
A _lot_ of ->write() instances were open-coding it; some are converted to memdup_user_nul(), a lot more remain... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-12-31wil6210: fix a warning message conditionDan Carpenter1-1/+1
"iter" is -1 at the end of the loop and not zero. It means we don't print a warning message. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-31ath9k_htc: fix handling return value of ath9k_hw_calibrateAndrzej Hajda1-1/+1
The function can return negative values in case of error. Its result should be then tested for such case. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/assign_signed_to_unsigned.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2046107 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-31ath10k: reduce indentation by moving powersave check within functionRajkumar Manoharan1-19/+15
For devices that does not support PCI power save, force wake up API is used. So move powersave check inside force wakeup to reduce one level indentation. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-31ath10k: wake up device before accessing registersRajkumar Manoharan1-3/+3
commit 1aaf8efba0ae ("ath10k: disable PCI PS for QCA988X and QCA99X0") partially reverts pci soc powersave support added by commit 77258d409ce4 ("ath10k: enable pci soc powersaving"). While reverting the change, pci wake up function is called after accessing pci registers instead of prior to access. The assumption is that chip is woken up before accessing its registers.Though this change does not fix any known issues, this might help to avoid unknown or low power platform specific issues. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-16Merge ath-next from ath.gitKalle Valo25-225/+422
Major changes: ath9k * add random number generator support (CONFIG_ATH9K_HWRNG)
2015-12-14ath10k: allow Mesh Point to install peer security keyPeter Oh1-1/+2
Mesh Point requires peer security key install when running in secured mode since it's a type of peer links, otherwise peer link will be removed due to key install failure. MFP feature set is required to run Mesh in secured mode and QCA988X firmware, 10.2.4.70.14-2 and above, is the only one supporting secured Mesh at this moment. Signed-off-by: Peter Oh <poh@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-11ath9k: fix inconsistent indenting on return statementColin Ian King1-1/+1
minor change, indenting is one tab out. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-11ath9k: feeding entropy in kernel from ADC captureMiaoqing Pan5-0/+145
This patch is derived from commit 6301566e0b2d ("ath9k: export HW random number generator"), We evaluated the entropy of the ADC data on QCA9531, QCA9561, QCA955x, and AR9340, and it has sufficient quality random data (at least 10 bits and up to 22 bits of min-entropy for a 32-bit value). We conservatively assume the min-entropy is 10 bits out of 32 bits. Thus, ATH9K_RNG_BUF_SIZE is set to 320 (u32) i.e., 1.25 kilobytes of data is inserted to fill up the pool as soon as the entropy counter becomes 896/4096 (set by random.c). Since ADC was not designed to be a dedicated HW RNG, we do not want to bind it to /dev/hwrng framework directly. This patch feeds the entropy directly from the WiFi driver to the input pool. The ADC register output is only used as a seed for the Linux entropy pool. No conditioning is needed, since all the conditioning is performed by the pool itself. Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-12-11ath9k: fix AR_RX_FILTER for ar9462/ar9565 when rx stoppedMiaoqing Pan2-3/+3
When rx stopped, AR_RX_FILTER should be cleared, but in ath9k_hw_setrxfilter(), ATH9K_RX_FILTER_CONTROL_WRAPPER will always be set for ar9462/ar9565. Fix this by moving the code in ath9k_hw_setrxfilter() to ath_calcrxfilter(). Signed-off-by: Miaoqing Pan <miaoqing@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>