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2016-07-06mac80211: Add support for beacon report radio measurementAvraham Stern2-6/+13
Add the following to support beacon report radio measurement with the measurement mode field set to passive or active: 1. Propagate the required scan duration to the device 2. Report the scan start time (in terms of TSF) 3. Report each BSS's detection time (also in terms of TSF) TSF times refer to the BSS that the interface that requested the scan is connected to. Signed-off-by: Assaf Krauss <assaf.krauss@intel.com> Signed-off-by: Avraham Stern <avraham.stern@intel.com> [changed ath9k/10k, at76c59x-usb, iwlegacy, wl1251 and wlcore to match the new API] Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-07-06nl80211: support beacon report scanningAvraham Stern5-10/+39
Beacon report radio measurement requires reporting observed BSSs on the channels specified in the beacon request. If the measurement mode is set to passive or active, it requires actually performing a scan (passive or active, accordingly), and reporting the time that the scan was started and the time each beacon/probe was received (both in terms of TSF of the BSS of the requesting AP). If the request mode is table, this information is optional. In addition, the radio measurement request specifies the channel dwell time for the measurement. In order to use scan for beacon report when the mode is active or passive, add a parameter to scan request that specifies the channel dwell time, and add scan start time and beacon received time to scan results information. Supporting beacon report is required for Multi Band Operation (MBO). Signed-off-by: Assaf Krauss <assaf.krauss@intel.com> Signed-off-by: David Spinadel <david.spinadel@intel.com> Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-06-30ath9k: Fix programming of minCCA power thresholdSven Eckelmann1-1/+1
The function ar9003_hw_apply_minccapwr_thresh takes as second parameter not a pointer to the channel but a boolean value describing whether the channel is 2.4GHz or not. This broke (according to the origin commit) the ETSI regulatory compliance on 5GHz channels. Fixes: 3533bf6b15a0 ("ath9k: Fix regulatory compliance") Signed-off-by: Sven Eckelmann <sven@narfation.org> Cc: Simon Wunderlich <sw@simonwunderlich.de> Cc: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath9k: return false when reading wrong eeprom offsetEduardo Abinader1-0/+2
Just setting the proper return for reading beyond the eeprom data. Signed-off-by: Eduardo Abinader <eduardo.abinader@riverbed.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: fix some typo in spectral code commmentsMohammed Shafi Shajakhan1-2/+2
Found this obvious typo while going through the spectral code design in ath10k Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: disable TX_STBC for tx chainmask of 1Mohammed Shafi Shajakhan1-1/+4
Disable TX_STBC for both HT and VHT if the devices tx chainmask is '1' TX_STBC is required only for devices with tx_chainmask > 1. This fixes a ping failure for QCA9887 (1x1) in HT/VHT mode Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: enable beacon loss detection support for 10.4Mohammed Shafi Shajakhan1-0/+4
Enable beacon loss detection support for 10.4 by handling roam event. With this change QCA99X0 station is able to detect beacon loss when the AP is powered off Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: fix potential null dereference bugsBob Copeland4-15/+24
Smatch warns about a number of cases in ath10k where a pointer is null-checked after it has already been dereferenced, in code involving ath10k private virtual interface pointers. Fix these by making the dereference happen later. Addresses the following smatch warnings: drivers/net/wireless/ath/ath10k/mac.c:3651 ath10k_mac_txq_init() warn: variable dereferenced before check 'txq' (see line 3649) drivers/net/wireless/ath/ath10k/mac.c:3664 ath10k_mac_txq_unref() warn: variable dereferenced before check 'txq' (see line 3659) drivers/net/wireless/ath/ath10k/htt_tx.c:70 __ath10k_htt_tx_txq_recalc() warn: variable dereferenced before check 'txq->sta' (see line 52) drivers/net/wireless/ath/ath10k/htt_tx.c:740 ath10k_htt_tx_get_vdev_id() warn: variable dereferenced before check 'cb->vif' (see line 736) drivers/net/wireless/ath/ath10k/txrx.c:86 ath10k_txrx_tx_unref() warn: variable dereferenced before check 'txq' (see line 84) drivers/net/wireless/ath/ath10k/wmi.c:1837 ath10k_wmi_op_gen_mgmt_tx() warn: variable dereferenced before check 'cb->vif' (see line 1825) Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: remove unneccessary WARN_ON_ONCE in rx during ACSMohammed Shafi Shajakhan1-1/+1
The below warning message seems to hit occasionally with the following combination (IPQ4019 + ACS scan) where we receive packets as a self peer when hostapd does ACS when we bring up AP mode . ath10k has the below fall back mechanism to fetch current operating channel in rx (it will check for the next channel tracking variable if the current one is NULL) [scan channel] --> [rx channel] --> [peer channel] --> [vdev channel] --> [any vdev channel] --> [target oper channel] 'scan channel' and 'target operating channel' are directly fetched from firmware events. All the others should be updated by mac80211. During ACS scan we wouldn't have a valid channel context assigned from mac80211 ('ar->rx_channel'), and also relying on ('ar->scan_channel') is not helpful (it becomes NULL when it goes to BSS channel and also when the scan event is completed). In short we cannot always rely on these two channel tracking variables. 'Target Operating Channel' (ar->tgt_oper_chan) seems to keep track of the current operating even while we are doing ACS scan and etc. Hence remove this un-necessary warning message and continue with target_operating channel. At the worst case scenario when the target operating channel is invalid (NULL) we already have an ath10k warning message to notify we really don't have a proper channel configured in rx to update the rx status("no channel configured; ignoring frame(s)!") WARNING: CPU: 0 PID: 0 at ath/ath10k/htt_rx.c:803 [<c0318838>] (warn_slowpath_null) from [<bf4a0104>] (ath10k_htt_rx_h_channel+0xe0/0x1b8 [ath10k_core]) [<bf4a0104>] (ath10k_htt_rx_h_channel [ath10k_core]) from [<bf4a025c>] (ath10k_htt_rx_h_ppdu+0x80/0x288 [ath10k_core]) [<bf4a025c>] (ath10k_htt_rx_h_ppdu [ath10k_core]) from [<bf4a1a9c>] (ath10k_htt_txrx_compl_task+0x724/0x9d4 [ath10k_core]) [<bf4a1a9c>] (ath10k_htt_txrx_compl_task [ath10k_core]) Fixes:3b0499e9ce42 ("ath10k: reduce warning messages during rx without proper channel context") Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30ath10k: fix crash during card removalMohammed Shafi Shajakhan1-0/+11
Usually when the firmware crashes we check for the value 'FW_IND_EVENT_PENDING' in 'FW_INDICATOR_ADDRESS' and proceed with disabling the irq and dumping firmware 'crash dump'. Now when the PCI card is unplugged from the device the PCI controller seems to generate a spurious interrupt after some time which was as treated a firmware crash and resulting in the below race condition (and eventually crashing the system) ath10k_core_unregister -> ath10k_core_free_board_files ...... device unplug spurious interrupt ......... ath10k_pci_taklet -> ath10k_pci_fw_crashed_dump ...etc Clearly even after the firmware board files related data structure is freed up we are getting a spurious interrupt from PCI with 0xfffffff in the 'FW_INDICATOR_ADDRESS' resulting in scheduling of the pci tasklet and doing a crash dump, printing f/w board related info resulting in the below crash. Fix this by detecting this spurious interrupt in ath10k PCI irq handler itself and return IRQ_NONE. Thanks to Michal Kazior for helping us conclude the most appropriate fix. Call trace: EIP is at ath10k_debug_print_board_info+0x39/0xb0 [ath10k_core] EAX: 00000000 EBX: d4de15a0 ECX: 00000000 EDX: 00000064 ESI: f615ddd0 EDI: f8530000 EBP: f615de3c ESP: f615ddbc DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 CR0: 80050033 CR2: 00000004 CR3: 01c0a000 CR4: 000006f0 Stack: f615ddd0 00000064 f8b4ecdd 00000000 00000000 00412f4e 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 Call Trace: [<f8b1f517>] ath10k_print_driver_info+0x17/0x30 [ath10k_core] [<f875463a>] ath10k_pci_fw_crashed_dump+0x7a/0xe0 [ath10k_pci] [<f87549d0>] ath10k_pci_tasklet+0x70/0x90 [ath10k_pci] [<c106151e>] tasklet_action+0x9e/0xb0 Cc: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller4-7/+6
Several cases of overlapping changes, except the packet scheduler conflicts which deal with the addition of the free list parameter to qdisc_enqueue(). Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-19Merge ath-next from ath.gitKalle Valo30-181/+783
ath.git patches for 4.8. Major changes: ath10k * enable btcoex support without restarting firmware * enable ipq4019 support using AHB bus * add QCA9887 chipset support * retrieve calibration data from EEPROM, currently only for QCA9887 wil6210 * add pm_notify handling
2016-06-14ath9k: fix GPIO mask for AR9462 and AR9565Miaoqing Pan1-4/+4
The incorrect GPIO mask cause kernel warning, when AR9462 access GPIO11. Also fix the mask for AR9565. WARNING: CPU: 1 PID: 199 at ../drivers/net/wireless/ath/ath9k/hw.c:2778 ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw] CPU: 1 PID: 199 Comm: kworker/u16:9 Not tainted 4.7.0-rc1-next-20160530+ #5 Hardware name: Acer TravelMate P243/BA40_HC, BIOS V1.01 04/20/2012 Workqueue: events_power_efficient rfkill_poll 0000000000000000 ffff88002cf73d28 ffffffff813b8ddc 0000000000000000 0000000000000000 ffff88002cf73d68 ffffffff8107a331 00000ada00000086 ffff880148d9c018 000000000000000b ffff880147e68720 0000000000000200 Call Trace: [<ffffffff813b8ddc>] dump_stack+0x63/0x87 [<ffffffff8107a331>] __warn+0xd1/0xf0 [<ffffffff8107a41d>] warn_slowpath_null+0x1d/0x20 [<ffffffffc0775b19>] ath9k_hw_gpio_get+0x1a9/0x1b0 [ath9k_hw] [<ffffffffc047f3e4>] ath9k_rfkill_poll_state+0x34/0x60 [ath9k] [<ffffffffc06dbb53>] ieee80211_rfkill_poll+0x33/0x40 [mac80211] [<ffffffffc03ad65a>] cfg80211_rfkill_poll+0x2a/0xc0 [cfg80211] [<ffffffff817c5514>] rfkill_poll+0x24/0x50 [<ffffffff81093183>] process_one_work+0x153/0x3f0 [<ffffffff8109393b>] worker_thread+0x12b/0x4b0 [<ffffffff81093810>] ? rescuer_thread+0x340/0x340 [<ffffffff81099129>] kthread+0xc9/0xe0 [<ffffffff817d8f1f>] ret_from_fork+0x1f/0x40 [<ffffffff81099060>] ? kthread_park+0x60/0x60 Fixes: a01ab81b09c5 ("ath9k: define correct GPIO numbers and bits mask") Reported-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Tested-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk> Signed-off-by: Miaoqing Pan <miaoqing@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14wil6210: abort P2P search when stopping P2P deviceLior David2-0/+17
The nl80211 layer expects P2P search operation to be aborted if needed when stopping P2P device. If the P2P search operation is still running after returning from stop_p2p_device it causes a WARN_ON and possibly a kernel crash. Fix this by aborting the P2P search in wil_cfg80211_stop_p2p_device and preventing P2P search from being started on a stopped P2P device. Note, the fix does not cover the case where a regular scan is started on the P2P device. It will be completed in the future when support is added for aborting a scan operation. 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>
2016-06-14wil6210: fix chan check in wil_p2p_listenMaya Erez1-2/+4
In wil_p2p_listen chan is checked to protect against NULL pointer access only before setting channel = chan->hw_value. Add a global parameter check to cover all accesses to chan. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath5k: fix misplaced default label in sifs switchBob Copeland1-1/+1
In this switch statement, the default case does not always assign sifs. In practice, ah->ah_bwmode cannot take values besides the other labels, so this is not an actual problem, but it looks odd and smatch complains thus: ath5k_hw_get_default_sifs() warn: missing break? reassigning 'sifs' Silence the warning by moving default label up a line. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: fix deadlock while processing rx_in_ord_indRajkumar Manoharan1-1/+0
commit 5c86d97bcc1d ("ath10k: combine txrx and replenish task") introduced deadlock while processing rx in order indication message for qca6174 based devices. While merging replenish and txrx tasklets, replenish task should be called out of htt rx ring locking since it is also try to acquire the same lock. Unfortunately this issue is not exposed by other solutions (qca988x, qca99x0 & qca4019), as rx_in_ord_ind message is specific to qca6174 based devices. This patch fixes ============================================= [ INFO: possible recursive locking detected ] 4.7.0-rc2-wt-ath+ #1353 Tainted: G E --------------------------------------------- swapper/3/0 is trying to acquire lock: (&(&htt->rx_ring.lock)->rlock){+.-...}, at: [<f8d7ef19>] ath10k_htt_rx_msdu_buff_replenish+0x29/0x90 [ath10k_core] but task is already holding lock: (&(&htt->rx_ring.lock)->rlock){+.-...}, at: [<f8d82cab>] ath10k_htt_txrx_compl_task+0x21b/0x250 [ath10k_core] other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&htt->rx_ring.lock)->rlock); lock(&(&htt->rx_ring.lock)->rlock); *** DEADLOCK *** May be due to missing lock nesting notation 1 lock held by swapper/3/0: #0: (&(&htt->rx_ring.lock)->rlock){+.-...}, at: [<f8d82cab>] ath10k_htt_txrx_compl_task+0x21b/0x250 [ath10k_core] Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=119151 Fixes: 5c86d97bcc1d ("ath10k: combine txrx and replenish task") Reported-by: Mike Lothian <mike@fireburn.co.uk> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: fix cycle counter wraparound handling for QCA4019Vasanthakumar Thiagarajan3-5/+30
In QCA4019, cycle counter wraparound is not tied to rx clear counter. Each counter would wraparound individually and after wraparound the respective counter will be reset to 0x7fffffff while other counter still running unaffected. Define a new wraparound type for this behaviour and handle it separately so that rx clear counter wraparound is also handled just like cycle counter. With this type of wraparound we can accurately compute and report channel active/busy time when any of the counter overflows. Fixes: ee9ca147c59 ("ath10k: Fix survey reporting with QCA4019") Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: define an enum to enable cycle counter wraparound logicVasanthakumar Thiagarajan4-9/+20
QCA988X hw implements a different cycle counter wraparound behaviour when compared to QCA4019. To properly handle different wraparound logic for these chipsets replace already available bool hw_params member, has_shifted_cc_wraparound, with an enum which could be extended to handle different wraparound behaviour. This patch keeps the existing logic functionally same and a prepares cycle counter wraparound handling to extend for other chips. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> [kvalo@qca.qualcomm.com: change also QCA9887 wrap type] Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: fix CCK h/w rates for QCA99X0 and newer chipsetsMohammed Shafi Shajakhan4-2/+56
CCK hardware table mapping from QCA99X0 onwards got revised. The CCK hardware rate values are in a proper order wrt. to rate and preamble as below ATH10K_HW_RATE_REV2_CCK_LP_1M = 1, ATH10K_HW_RATE_REV2_CCK_LP_2M = 2, ATH10K_HW_RATE_REV2_CCK_LP_5_5M = 3, ATH10K_HW_RATE_REV2_CCK_LP_11M = 4, ATH10K_HW_RATE_REV2_CCK_SP_2M = 5, ATH10K_HW_RATE_REV2_CCK_SP_5_5M = 6, ATH10K_HW_RATE_REV2_CCK_SP_11M = 7, This results in reporting of rx frames (with CCK rates) totally wrong for QCA99X0, QCA4019. Fix this by having separate CCK rate table for these chipsets with rev2 suffix and registering the correct rate mapping to mac80211 based on the new hw_param (introduced) 'cck_rate_map_rev2' which shall be true for any newchipsets from QCA99X0 onwards Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: remove duplicate and unused rx rate flagsMohammed Shafi Shajakhan1-39/+0
All these flags are not used and their use is completely covered by 'ath10k_hw_rate_ofdm', 'ath10k_hw_rate_cck', and RX_PPDU_START_RATE_FLAG Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-14ath10k: fix some of the macro definitions of HTT_RX_IND messageVasanthakumar Thiagarajan1-3/+3
Only five bits are defined to pass tid information in HTT_RX_IND message, so the mask which can be used to extract tid should be 0x1f instead of the current 0x3f. Also, macros which can be used to extract flush_valid and release_valid bits have to be left shifted one bit less because these information follow the tid right after. This patch does not really fix anything functionally because these macros are not used currently. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-07ath10k: fix crash related to printing featuresBen Greear1-1/+1
This looks like a regression from commit c4cdf753ed42 ("ath10k: move fw_features to struct ath10k_fw_file"), we were printing the features from a wrong struct. Fixes: c4cdf753ed42 ("ath10k: move fw_features to struct ath10k_fw_file") Signed-off-by: Ben Greear <greearb@candelatech.com> [kvalo@qca.qualcomm.com: improve commit log] Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-07ath10k: add board data download from targetSven Eckelmann5-1/+219
The QCA9887 stores its calibration data (board.bin) inside the EEPROM of the target. This has to be downloaded manually to allow the device to initialize correctly. Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com> [kvalo@qca.qualcomm.com: handle -EOPNOTSUPP and s/fetch_board_data/fetch_cal_eeprom] Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-07ath10k: add QCA9887 chipset supportSven Eckelmann4-0/+51
Add the hardware name, revision, firmware names and update the pci_id table. QA9887 HW1.0 is supposed to be similar to QCA988X HW2.0 . Details about he firmware interface are currently unknown. Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com> [kvalo@qca.qualcomm.com: add a warning about experimental support] Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-06ath10k: fix deadlock when peer cannot be createdBen Greear1-1/+1
We must not attempt to send WMI packets while holding the data-lock, as it may deadlock: BUG: sleeping function called from invalid context at drivers/net/wireless/ath/ath10k/wmi.c:1824 in_atomic(): 1, irqs_disabled(): 0, pid: 2878, name: wpa_supplicant ============================================= [ INFO: possible recursive locking detected ] 4.4.6+ #21 Tainted: G W O --------------------------------------------- wpa_supplicant/2878 is trying to acquire lock: (&(&ar->data_lock)->rlock){+.-...}, at: [<ffffffffa0721511>] ath10k_wmi_tx_beacons_iter+0x26/0x11a [ath10k_core] but task is already holding lock: (&(&ar->data_lock)->rlock){+.-...}, at: [<ffffffffa070251b>] ath10k_peer_create+0x122/0x1ae [ath10k_core] other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&ar->data_lock)->rlock); lock(&(&ar->data_lock)->rlock); *** DEADLOCK *** May be due to missing lock nesting notation 4 locks held by wpa_supplicant/2878: #0: (rtnl_mutex){+.+.+.}, at: [<ffffffff816493ca>] rtnl_lock+0x12/0x14 #1: (&ar->conf_mutex){+.+.+.}, at: [<ffffffffa0706932>] ath10k_add_interface+0x3b/0xbda [ath10k_core] #2: (&(&ar->data_lock)->rlock){+.-...}, at: [<ffffffffa070251b>] ath10k_peer_create+0x122/0x1ae [ath10k_core] #3: (rcu_read_lock){......}, at: [<ffffffffa062f304>] rcu_read_lock+0x0/0x66 [mac80211] stack backtrace: CPU: 3 PID: 2878 Comm: wpa_supplicant Tainted: G W O 4.4.6+ #21 Hardware name: To be filled by O.E.M. To be filled by O.E.M./ChiefRiver, BIOS 4.6.5 06/07/2013 0000000000000000 ffff8801fcadf8f0 ffffffff8137086d ffffffff82681720 ffffffff82681720 ffff8801fcadf9b0 ffffffff8112e3be ffff8801fcadf920 0000000100000000 ffffffff82681720 ffffffffa0721500 ffff8801fcb8d348 Call Trace: [<ffffffff8137086d>] dump_stack+0x81/0xb6 [<ffffffff8112e3be>] __lock_acquire+0xc5b/0xde7 [<ffffffffa0721500>] ? ath10k_wmi_tx_beacons_iter+0x15/0x11a [ath10k_core] [<ffffffff8112d0d0>] ? mark_lock+0x24/0x201 [<ffffffff8112e908>] lock_acquire+0x132/0x1cb [<ffffffff8112e908>] ? lock_acquire+0x132/0x1cb [<ffffffffa0721511>] ? ath10k_wmi_tx_beacons_iter+0x26/0x11a [ath10k_core] [<ffffffffa07214eb>] ? ath10k_wmi_cmd_send_nowait+0x1ce/0x1ce [ath10k_core] [<ffffffff816f9e2b>] _raw_spin_lock_bh+0x31/0x40 [<ffffffffa0721511>] ? ath10k_wmi_tx_beacons_iter+0x26/0x11a [ath10k_core] [<ffffffffa0721511>] ath10k_wmi_tx_beacons_iter+0x26/0x11a [ath10k_core] [<ffffffffa07214eb>] ? ath10k_wmi_cmd_send_nowait+0x1ce/0x1ce [ath10k_core] [<ffffffffa062eb18>] __iterate_interfaces+0x9d/0x13d [mac80211] [<ffffffffa062f609>] ieee80211_iterate_active_interfaces_atomic+0x32/0x3e [mac80211] [<ffffffffa07214eb>] ? ath10k_wmi_cmd_send_nowait+0x1ce/0x1ce [ath10k_core] [<ffffffffa071fa9f>] ath10k_wmi_tx_beacons_nowait.isra.13+0x14/0x16 [ath10k_core] [<ffffffffa0721676>] ath10k_wmi_cmd_send+0x71/0x242 [ath10k_core] [<ffffffffa07023f6>] ath10k_wmi_peer_delete+0x3f/0x42 [ath10k_core] [<ffffffffa0702557>] ath10k_peer_create+0x15e/0x1ae [ath10k_core] [<ffffffffa0707004>] ath10k_add_interface+0x70d/0xbda [ath10k_core] [<ffffffffa05fffcc>] drv_add_interface+0x123/0x1a5 [mac80211] [<ffffffffa061554b>] ieee80211_do_open+0x351/0x667 [mac80211] [<ffffffffa06158aa>] ieee80211_open+0x49/0x4c [mac80211] [<ffffffff8163ecf9>] __dev_open+0x88/0xde [<ffffffff8163ef6e>] __dev_change_flags+0xa4/0x13a [<ffffffff8163f023>] dev_change_flags+0x1f/0x54 [<ffffffff816a5532>] devinet_ioctl+0x2b9/0x5c9 [<ffffffff816514dd>] ? copy_to_user+0x32/0x38 [<ffffffff816a6115>] inet_ioctl+0x81/0x9d [<ffffffff816a6115>] ? inet_ioctl+0x81/0x9d [<ffffffff81621cf8>] sock_do_ioctl+0x20/0x3d [<ffffffff816223c4>] sock_ioctl+0x222/0x22e [<ffffffff8121cf95>] do_vfs_ioctl+0x453/0x4d7 [<ffffffff81625603>] ? __sys_recvmsg+0x4c/0x5b [<ffffffff81225af1>] ? __fget_light+0x48/0x6c [<ffffffff8121d06b>] SyS_ioctl+0x52/0x74 [<ffffffff816fa736>] entry_SYSCALL_64_fastpath+0x16/0x7a Signed-off-by: Ben Greear <greearb@candelatech.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-04carl9170: Clarify kconfig textLauri Kasanen1-5/+3
The previous text was confusing, leading readers to think this driver was a duplicate, and so didn't need to be enabled. After the removal of the older staging driver, this is the only driver in mainline for these devices. Signed-off-by: Lauri Kasanen <cand@gmx.com> Acked-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2016-06-02ath10k: enable ipq4019 device probe in ahb moduleRaja Mani1-6/+3
All the necessary patches to make wifi running (over AHB) on ipq4019 SoC are ready now. It's good to enable ipq4019 wifi device probing in ahb module and remove work in progress debug print. Device tree change is there in the public review by below commit message "qcom: ipq4019: add wifi nodes to ipq4019 SoC device tree" Signed-off-by: Tamizh chelvam <c_traja@qti.qualcomm.com> Signed-off-by: Raja Mani <rmani@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: add pdev param support to enable/disable btcoexRajkumar Manoharan5-3/+46
10.4 firmware has support to enable or disable btcoex functionality without reloading firmware via wmi pdev param. Add provision to send pdev param command via existing btcoex knob. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: add new ATH10K_FW_FEATURE_BTCOEX_PARAMRajkumar Manoharan2-0/+8
This feature flag will be used for firmware to support BT-Coex feature without reloading firmware via WMI pdev param. To support Bluetooth coexistence pdev param, WMI_COEX_GPIO_SUPPORT of extended resource config should be enabled always. This firmware IE is used to configure WMI_COEX_GPIO_SUPPORT. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: update module descriptionRajkumar Manoharan2-2/+2
Update module description to advertise all supported QCA 802.11ac devices. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: remove unused phy_mode_to_bandRajkumar Manoharan1-28/+0
Remove unused inline function phy_mode_to_band. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: fix operating irq mode for ahb deviceRajkumar Manoharan1-0/+2
Earlier when operating irq mode is legacy, interrupts are disabled and re-enabled based on num_msi_intrs. commit cfe9011a05a8 ("ath10k: remove MSI range support") replaced num_msi_intrs by oper_irq_mode. Since oper_irq_mode is not initialized for ahb devices (i.e qca4019), device boot up is failed during probe. Fixes: cfe9011a05a8 ("ath10k: remove MSI range support") Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: fix error while writing 'simulate_fw_crash' debugfsMohammed Shafi Shajakhan1-8/+6
Fix invalid argument error while writing 'simulate_fw_crash', though the funcionality is working fine we get an error 'invalid argument' because 'count' value is not returned properly (no reason to reduce the count value for removing the newline) Fixes the below write error: /sys/kernel/debug/ieee80211/phy0/ath10k# echo hw-restart > simulate_fw_crash -bash: echo: write error: Invalid argument Also move the 'conf_mutex' as it is really not required for fetching the userspace buffer. Reported-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com> Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Maharaja Kennadyrajan <c_mkenna@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-06-02ath10k: fix diag_read to collect data for larger memoryAshok Raj Nagarajan1-12/+16
diag_read uses dma_alloc_coherent to allocate memory requested by the caller. If this memory requested is larger, more than DIAG_TRANSFER_LIMIT (2K), then it is likely that we may not get the requested memory and we would fail. To solve this, request dma_alloc_coherent for only DIAG_TRANSFER_LIMIT, and reuse this buffer multiple times as needed to copy the data requested in smaller chunks of size not more than DIAG_TRANSFER_LIMIT. Previously we were reading into the caller's only after getting the complete requested data. Fixes: 68c03249f388 ('ath10k: convert pci_alloc_consistent() to dma_alloc_coherent()') Signed-off-by: Ashok Raj Nagarajan <arnagara@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28ath9k: Proper TX99 interrupt ref countEduardo Abinader1-1/+0
On TX99 mode, instead of assuming interrupt mask non ATH9K_INT_GLOBAL, let ath9k_hw_disable_interrupts proper set interrupt ref count. This prevents some PCI PERR occurring specialy when setting 11b and n rates. Signed-off-by: Eduardo Abinader <eduardo.abinader@riverbed.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28ath6kl: simplify logical conditionHeinrich Schuchardt1-2/+1
x <= 7 implies x < 8. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28ath6kl: fix typoJulia Lawall1-1/+1
firmare -> firmware Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: align wil log functions to wil_dbg_ratelimited implementationMaya Erez1-26/+20
Change the implementation of wil log functions for consistency with __wil_dbg_ratelimited. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: add pm_notify handlingMaya Erez4-4/+98
Adding pm_notify to allow the following: 1. Check if suspend is allowed in an earlier stage to prevent starting the suspend procedure in case it is not allowed 2. Notify the platform driver on the suspend request Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: fix dma mapping error cleanup in __wil_tx_vring_tsoMaya Erez1-1/+1
In case we fail to map one of the TSO SKB fragments, we need to clear all the mapped descriptors, from swhead to swhead+descs_used-1. Change the desc index calculation to i = (swhead + descs_used - 1) % vring->size; to prevent unmpping of (swhead + descs_used) descriptor that wasn't mapped. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: protect wil_vring_fini_tx in parallel to tx completionsMaya Erez1-0/+14
napi_synchronize is called before releasing the vring, with the assumption that setting txdata->enabled to 0 will prevent handling of this vring in the next scheduled napi. To guarantee this assumption, a memory barrier is added after disabling the txdata. In addition, as the ctx is zeroed in wil_tx_complete after this descriptor is handled (protected by wmb), ctx needs to be checked before releasing this descriptor in wil_vring_free. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: guarantee safe access to rx descriptors shared memoryMaya Erez1-0/+6
add memory barrier after allocating new rx descriptors, before updating the hwtail. This will guarantee that all writes to descriptors (shared memory) are done before committing them to HW. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28wil6210: fix race conditions between TX send and completionMaya Erez1-0/+20
There are 2 possible race conditions, both are solved by addition of memory barrier: 1. wil_tx_complete reads the swhead to determine if the vring is empty. In case the swhead was updated before the descriptor update was performed in __wil_tx_vring/__wil_tx_vring_tso, the completion loop will not end and as the DU bit may still be set from a previous run, this skb can be handled as completed before it was sent, which will lead to double free of the same SKB. 2. __wil_tx_vring/__wil_tx_vring_tso calculate the number of available descriptors according to the swtail. In case the swtail is updated before memset of ctx to zero is completed, we can handle this descriptor while later on ctx is zeroed. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28ath9k: allow tx99 for ar9002 based cardsEduardo Abinader1-1/+1
As there is current support for ar9002 tx99 mode, just allow to init debugfs and enable tx99. Signed-off-by: Eduardo Abinader <eduardo.abinader@riverbed.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-28ath9k: Remove empty test conditionEduardo Abinader1-2/+1
Just some code cleanup to remove an empty if clause. Signed-off-by: Eduardo Abinader <eduardo.abinader@riverbed.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-24ath10k: fix legacy rate packet debug messagesMohammed Shafi Shajakhan1-1/+2
Legacy rate packets may not necessarily be having a rx status flag of '0' always, for example management frame have flags like RX_FLAG_ONLY_MONITOR / RX_FLAG_MACTIME_END also set Just check 'VHT' and 'HT' flags are not set , and simply clasify it as legacy rate packets Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-24ath10k: reduce warning messages during rx without proper channel contextMohammed Shafi Shajakhan1-1/+1
WARN_ON_ONCE when we receive packets for self peer when mac80211 had not assigned a proper channel context. This scenario happens in QCA4019 when we start the AP via hostapd in background and start it once again in the background without killing the previous instance! This happens intermittently when we start / stop hostapd in a while loop (incase the hostapd is not properly killed). This results in mac80211 chancontext to be unassigned, while the self peer continuous receive packets in target operating channel. This results in lot of call traces in the rx path. Make this as a WARN_ON_ONCE to avoid flooding the console which result in rebooting low memory systems, while still reporting the warning once that we are receiving packets in target operating channel and to indicate that something is happening which is not the expected result. WARNING: CPU: 0 PID: 0 at ath/ath10k/htt_rx.c:803 [<c0318838>] (warn_slowpath_null) from [<bf4a0104>] (ath10k_htt_rx_h_channel+0xe0/0x1b8 [ath10k_core]) [<bf4a0104>] (ath10k_htt_rx_h_channel [ath10k_core]) from [<bf4a025c>] (ath10k_htt_rx_h_ppdu+0x80/0x288 [ath10k_core]) [<bf4a025c>] (ath10k_htt_rx_h_ppdu [ath10k_core]) from [<bf4a1a9c>] (ath10k_htt_txrx_compl_task+0x724/0x9d4 [ath10k_core]) [<bf4a1a9c>] (ath10k_htt_txrx_compl_task [ath10k_core]) Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-24ath10k: improve tx schedulingMichal Kazior3-6/+7
Recent changes revolving around implementing wake_tx_queue support introduced a significant performance regressions on some (slower, uni-proc) systems. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2016-05-24ath10k: enable support for QCA9984Vasanthakumar Thiagarajan3-0/+48
QCA9984 shares the same configuration with QCA99X0. Signed-off-by: Vasanthakumar Thiagarajan <vthiagar@qti.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>