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path: root/drivers/net/wireless
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2013-08-05ath9k: Program HW for WB195 diversitySujith Manoharan
The MC_GAIN_CTL/CCK_DETECT registers have to be programmed with the correct configuration values if WLAN/BT RX diversity is enabled. Add this and also take care of the BTCOEX mode when fast diversity is enabled/disabled. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Enable WLAN/BT Ant Diversity for WB225/WB195Sujith Manoharan
A custom solution for Asus is WB195 based and supports WLAN/BT Rx diversity. Identify this card and set the capability. CUS198/CUS230, which are based on WB225 also support WLAN/BT Rx diversity. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Rename ath9k_hw_antctrl_shared_chain_lnadivSujith Manoharan
Use "ath9k_hw_set_bt_ant_diversity" instead. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Add a HW capability for WLAN/BT RX diversitySujith Manoharan
Make use of this capability to restrict the usage of the debugfs file and modparam using which this feature can be enabled. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Cleanup WLAN/BT RX diversitySujith Manoharan
For single-chain WLAN+BT cards, the BT antenna can be used for WLAN RX when the BT interface is disabled. Rename the modparam "antenna_diversity" to "bt_ant_diversity" to clarify this. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Fix antenna diversity for CUS198Sujith Manoharan
CUS198/CUS230 need a few tweaks in the antenna diversity algorithm to accomodate RSSI variation. Add a couple of knobs to control low RSSI threshold and fast antenna diversity bias values. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Print LNA combining mode during initSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath9k: Add information about antenna diversitySujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05cw1200: Fix spurious BUG_ON() trigger when starting AP mode.Solomon Peachy
There's an underlying race condition with the unjoin_work() call that is sometimes triggered depending on scheduling order and the phase of the moon. This doesn't fix the race condition, but it does remove the ill-advised BUG_ON() call in an easily-recoverable situation. Signed-off-by: Solomon Peachy <pizza@shaftnet.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-05ath10k: fix device teardownMichal Kazior
This fixes interrupt-related issue when no interfaces were running thus the device was considered powered down. The power_down() function isn't really powering down the device. It simply assumed it won't interrupt. This wasn't true in some cases and could lead to paging failures upon FW indication interrupt (i.e. FW crash) because some structures aren't allocated in that device state. One reason for that was that ar_pci->started wasn't reset. The other is interrupts should've been masked when teardown starts. The patch reorganized interrupt setup and makes sure ar_pci->started is reset accordingly. Reported-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02Merge tag 'for-linville-20130730' of git://github.com/kvalo/ath6klJohn W. Linville
2013-08-02Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
2013-08-02iwl4965: reset firmware after rfkill offStanislaw Gruszka
Using rfkill switch can make firmware unstable, what cause various Microcode errors and kernel warnings. Reseting firmware just after rfkill off (radio on) helped with that. Resolve: https://bugzilla.redhat.com/show_bug.cgi?id=977053 Reported-and-tested-by: Justin Pearce <whitefox@guardianfox.net> Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-02iwl4965: set power mode earlyStanislaw Gruszka
If device was put into a sleep and system was restarted or module reloaded, we have to wake device up before sending other commands. Otherwise it will fail to start with Microcode error. Cc: stable@vger.kernel.org Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-02ath10k: fix failpath in MSI-X setupMichal Kazior
pci_disable_msi() must be called if the initial request_irq() fails. Also add a warning message so it's possible to distinguish request_irq() failure and pci_enable_msi() failure. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: zero arvif memory on add_interface()Michal Kazior
The private memory area in vif provided by mac80211 isn't guaranteed to be zeroed. This patch should fix issues when switching between STA and AP interface types. The tim_bitmap could become polluted by STA bssid field (since it's a union), wep_keys array could also become polluted with invalid pointers and probably much more. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: advertise more conservative intf combinationsMichal Kazior
Apparently the available firmware has a limit of handling 7 APs, 3 GOs or 8 STAs. This is based on empirical tests and it is still possible some combinations may crash the firmware. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: make sure to use passive scan when n_ssids is 0Michal Kazior
Normally user specifies broadcast ssid for scanning. If the user wants to do a passive scan it does not pass any ssids. The patch makes sure we ath10k tells firmware to not send anything at all in case it decides no ssids equals broadcast ssid. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: prevent using invalid ringbuffer indexesMichal Kazior
If the device is removed and hotplug fails ioread32() will return 0xFFFFFFFF. In that case reading ringbuffer during device bringup led to out-of-bounds addressing of a ringbuffer array that in turn led to a paging failure. This could be reproduced by the following: * boot without acpi/prevent hotplug from working * insert and manually detect (pci rescan) the device * remove the device physically * load ath10k driver * kernel crashed Ringbuffer index reading is now protected by using an appropriate mask to prevent addressing an invalid array index. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: implement get_survey()Michal Kazior
This implements a limited subset of what can be reported in the survey dump. This can be used for assessing approximate channel load, e.g. for automatic channel selection. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: implement tx checksum offloadingMichal Kazior
HW supports L3/L4 tx checksum offloading. This should reduce CPU load and improve performance on slow host machines. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-02ath10k: implement rx checksum offloadingMichal Kazior
HW supports L3/L4 rx checksum offloading. This should reduce CPU load and improve performance on slow host machines. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-01ath9k: Add statistics for antenna diversitySujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Use a subroutine to calculate ALT ratioSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Simplify checks in quick_scanSujith Manoharan
There is a function to do a ratio comparison for ALT, so make use of it. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Use a helper function for checking LNA optionsSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Use a subroutine to try LNA switchSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Add ALT check for cards with GROUP-3 configSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Use a subroutine to check for short scanSujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Do a quick scan only when scan_not_start is trueSujith Manoharan
Right now, it is being done for all cases. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01ath9k: Add a debugfs file for antenna diversitySujith Manoharan
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01iwl4965: better skb management in rx pathStanislaw Gruszka
4965 version of Eric patch "iwl3945: better skb management in rx path". It fixes several problems : 1) skb->truesize is underestimated. We really consume PAGE_SIZE bytes for a fragment, not the frame length. 2) 128 bytes of initial headroom is a bit low and forces reallocations. 3) We can avoid consuming a full page for small enough frames. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01rtlwifi: rtl8192cu: fix function declaration headerMark Schulte
Move rtl92cu_update_hal_rate_tbl declaration to hw.h to correspond with function definition in hw.c. Fixes sparse warning in hw.c warning: symbol 'rtl92cu_update_hal_rate_tbl' was not declared. Signed-off-by: Mark Schulte <schultetwin@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01mwifiex: populate rates in probe request using cfg80211_scan_requestAvinash Patil
Whenever available, use cfg80211_scan_request to populates rates in outgoing probe request. This will help to advertise band specific rates and fix an issue where 11b rates were advertised in probe request going out on 11a band. This will also ensure that we do not advertise 11b rates while P2P scan is going on. Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01mwifiex: fix adapter pointer dereference issueAmitkumar Karwar
It has introduced by recent commit 6b41f941d7cd: "mwifiex: handle driver initialization error paths" which adds error path handling for mwifiex_fw_dpc(). release_firmware(adapter->*) is called for success as well as failure paths. In failure paths, adapter is already freed at this point. The issue is fixed by moving mwifiex_free_adapter() call. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-08-01Merge branch 'for-john' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2013-07-31mwifiex: fix command 0x2c timeout during p2p_find or p2p_connectStone Piao
We missed bss_mode check for P2P client. Signed-off-by: Stone Piao <piaoyun@marvell.com> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-31mwifiex: fix wrong data rates in P2P clientAvinash Patil
This patch fixes an issue wherein adhoc rates were being copied into association request from P2P client. Cc: <stable@vger.kernel.org> # 3.10.y Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Stone Piao <piaoyun@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-31mwifiex: check for bss_role instead of bss_mode for STA operationsAvinash Patil
This patch fixes an issue wherein association would fail on P2P interfaces. This happened because we are checking priv->mode against NL80211_IFTYPE_STATION. While this check is correct for infrastructure stations, it would fail P2P clients for which mode is NL80211_IFTYPE_P2P_CLIENT. Better check would be bss_role which has only 2 values: STA/AP. Cc: <stable@vger.kernel.org> # 3.10.y Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Stone Piao <piaoyun@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-07-31iwlwifi: mvm: advertise support for DYNAMIC / STATIC SMPSEmmanuel Grumbach
This feature is fully supported by iwlwmvm, so advertise it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: add high temperature SKU thermal throttling parametersEytan Lifshitz
When the NIC is expected to operate in high temperature, it is advisable to put more aggresive thermal throttling parameters, in order to prevent CT-kill. Signed-off-by: eytan lifshitz <eytan.lifshitz@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: Change beacon abort escape time valueAlexander Bondar
Set beacon abort escape timer values - 6 beacons in D0 state, 9 beacons in D3 and D0i3. Signed-off-by: Alexander Bondar <alexander.bondar@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: remove duplicate rate scale init codeEyal Shapira
The rate scale windows are cleared twice as part of the init. Cleanup this duplication in both mvm and dvm. Signed-off-by: Eyal Shapira <eyal@wizery.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: remove obsolete flag in TX command APIEmmanuel Grumbach
This API isn't valid any more. It wasn't used anyway. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: report per-chain signal to mac80211Johannes Berg
Instead of reporting the maximum signal strength and the antenna bitmap in the antenna field (which is really just for radiotap and defined differently), report the signal strength values per chain and set the chain bitmap. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: fix debugfs restart if fw_restart is disabledEran Harary
If fw_restart is disabled, using the fw_restart debugfs file will enable fw_restart and then send the failing command, but this still frequently fails restart because it resets fw_restart afterwards and is thus racy. Fix this by tracking fw_restart separately and allowing "always restart", "never restart" and "restart N times". Signed-off-by: Eran Harary <eran.harary@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: Change beacon filtering commandHila Gonen
Change beacon filtering command due to a change in the API. In case the FW supports the old API, we do not send the BF HCMD and assume that since the corresponding struct in the FW is zeroed by default then we don't need to disable it in the FW actively. Signed-off-by: Hila Gonen <hila.gonen@intel.com> Signed-off-by: Dor Shaish <dor.shaish@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: register vif debugfs for AP mode tooEmmanuel Grumbach
The current registered the per-vif debugfs handler for STA mode only. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
2013-07-31iwlwifi: mvm: split constants into separate fileJohannes Berg
To make maintaining some constant default values in the driver easier, declare them in a separate file. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-31iwlwifi: mvm: assign quota per virtual interfaceJohannes Berg
Instead of assigning quota per used binding (channel) assign the same amount of quota for each virtual interface so that when there are more than two interfaces using more than one channel, we'll stay on the channels proportionally to the number of virtual interfaces using the channels. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Reviewed-by: Ilan Peer <ilan.peer@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>