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path: root/drivers/net/wireless/ath/ath10k
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2013-09-01ath10k: rename ce_ring_state to ath10k_ce_ringMichal Kazior2-19/+18
The new naming makes more sense. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01ath10k: rename ce_state to ath10k_ce_pipeMichal Kazior4-77/+78
The new naming makes more sense. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01ath10k: rename hif_ce_pipe_info to ath10k_pci_pipeMichal Kazior2-20/+20
The new naming makes more sense. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01ath10k: remove unused ce_attr parametersMichal Kazior2-15/+9
Some parameters were unused and are not required. They have no representation in firmware. Clean them up. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01ath10k: remove ce_op_stateMichal Kazior2-10/+0
It was only written to and never read back. No use to keep it around. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-09-01ath10k: use inline ce_state structureMichal Kazior2-25/+14
Simplifies memory managament of ce_state. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-28ath10k: Fix mutex unlock balanceMohammed Shafi Shajakhan1-1/+0
ath10k_debug_read_target_stats is properly protected by data_lock (spinlock). Remove the unwanted mutex_unlock(&ar->conf_mutex) [ BUG: bad unlock balance detected! ] ------------------------------------- kworker/u4:0/12459 is trying to release lock (&ar->conf_mutex) at: [<c16a170d>] mutex_unlock+0xd/0x10 but there are no more locks to release! Call Trace: [<c16a170d>] ? mutex_unlock+0xd/0x10 [<c10b697d>] __lock_release+0x4d/0xe0 [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290 [<c16a170d>] ? mutex_unlock+0xd/0x10 [<c10b6a5b>] lock_release+0x4b/0x150 [<c16a1580>] __mutex_unlock_slowpath+0x70/0x150 [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290 [<c10b456b>] ? trace_hardirqs_on+0xb/0x10 [<c16a170d>] mutex_unlock+0xd/0x10 [<f88ca107>] ath10k_debug_read_target_stats+0xb7/0x290 [<f88d337a>] ath10k_wmi_event_process+0x3fa/0x6e0 [<c10b456b>] ? trace_hardirqs_on+0xb/0x10 [<f88d36e1>] ath10k_wmi_event_work+0x21/0x40 [ath10k_core] Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-15Merge branch 'for-linville' of git://github.com/kvalo/athJohn W. Linville9-43/+264
2013-08-15ath10k: add support for HTT 3.0Michal Kazior5-39/+76
New firmware comes with new HTT protocol version. In 3.0 the separate mgmt tx command has been removed. All traffic is to be pushed through data tx (tx_frm) command with a twist - FW seems to not be able (yet?) to access tx fragment table so for manamgement frames frame pointer is passed directly. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-15ath10k: add support for firmware newer than 636Michal Kazior3-11/+47
The mgmt_rx event structure has been expanded. Since the structure header is expanded the payload (i.e. mgmt frame) is shifted by a few bytes. This needs to be taken into account in order to support both old and new firmware. This introduces a fw_features to keep track of any FW-related ABI/behaviour changes. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: fix WEP in AP and IBSS modeMarek Puzyniak1-4/+0
WEP encoding was not working properly for AP and IBSS mode. TX frames were encrypted with default WEP tx key index set always to zero, what sometimes was wrong when different key index should be used. This patch allows to update WEP key index also for AP and IBSS mode. Problem detected during automated WEP tests. Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: plug possible memory leak in WMIMichal Kazior1-0/+1
There was a possible memory leak when WMI command queue reached it's limit. Command buffers were not freed. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: implement 802.3 SNAP rx decap type A-MSDU handlingMichal Kazior1-2/+10
This enables driver to rx another decapped a-msdu frames. It should possibly help with throughputs in some cases and reduce (or eliminate) number of messages like this: ath10k: error processing msdus -524 Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: fix HTT service setupMichal Kazior1-4/+4
The "disable credit flow" flag was set too late and it never was in the HTC service request message. This patch prevents firmware from reporting (useless) HTC credits for HTT service. HTT service doesn't use nor need credits. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: print errcode when CE ring setup failsMichal Kazior1-6/+9
This makes it possible to see the reason why the setup fails. It also adheres to code style of error checking in ath drivers. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: clean up PCI completion statesMichal Kazior2-12/+23
Improve code readability by using enum and a switch-case. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: use sizeof(*var) in kmallocMichal Kazior1-2/+1
This fixes checkpatch warning from the latest 3.11-rc kernel tree. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-14ath10k: clean up monitor start codeMichal Kazior1-3/+0
Remove useless code that was causing WARN_ON when a 80MHz+ vif entered promiscuous mode or monitor interface was started. The channel mode is already computed by chan_to_phymode(). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-13ath10k: check allocation errors in CEJanusz Dziedzic1-0/+22
Handle pci_alloc_consistent(), kmalloc() errors in copy engine module. Found during code review. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12ath10k: update supported FW build versionBartosz Markowski1-1/+1
The latest supported and available FW build is 1.0.0.636. Reflect this in ath10k code. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12ath10k: Remove qca98xx hw1.0 supportBartosz Markowski5-85/+3
Since the firmware support is no longer available for hw1.0, drop all code (especially workarounds) for those units. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-12ath10k: setup peer UAPSD flag correctlyJanusz Dziedzic1-1/+1
Setup UAPSD peer/peer rate flags correctly. WMI_RC_UAPSD_FLAG is a peer rate capabilities flag and should not be set as a peer flag. Found during code review, doesn't fix a known issues. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-09Merge branch 'master' of ↵John W. Linville1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
2013-08-07ath10k: add SoC power save option to PCI features mapBartosz Markowski2-12/+21
Unify the PCI options location. By default the SoC PS option is disabled to boost the performance and due to poor stability on early HW revisions. In future we can remove the module parameter and turn on/off the PS for given hardware. This change also makes the pci module parameter for SoC PS static. Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-08-05ath10k: fix device teardownMichal Kazior1-11/+30
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>
2013-08-02ath10k: fix failpath in MSI-X setupMichal Kazior1-1/+6
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 Kazior1-0/+2
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 Kazior1-3/+9
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 Kazior1-0/+2
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 Kazior1-0/+5
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 Kazior4-1/+122
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 Kazior2-0/+4
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 Kazior1-0/+40
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>
2013-07-31ath10k: detect the number of spatial streams supported by hwMichal Kazior3-12/+20
Until now ath10k assumed 3 spatial streams. However some devices support only 2 spatial streams. This patch improves performance on devices that don't support 3 spatial streams. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-31ath10k: improve tx throughput on slow machinesMichal Kazior1-3/+3
It is more efficient to move just the 802.11 header instead of the whole payload in most cases. This has no measurable effect on modern hardware. It should improve performance by a few percent on hardware such as an Access Point that have a slow CPU compared to a typical desktop CPU. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: fix rts/fragmentation threshold setupMichal Kazior1-26/+28
If RTS and fragmentation threshold values are 0xFFFFFFFF they should be considered disabled and no min/max limits must be applied. This fixes some issues with throughput issues, especially with VHT. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: fix memleak in mac setupMichal Kazior1-11/+15
In some cases channel arrays were never freed. The patch also unifies error handling in the mac setup function. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: don't reset HTC endpoints unnecessarilyMichal Kazior1-1/+0
Endpoints are re-initialized upon HTC start anyway so there's no need to do that twice in case of restarting HTC (i.e. in case of hardware recovery). Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: prevent HTC from being used after stoppingMichal Kazior2-16/+15
It was possible to submit new HTC commands after/while HTC stopped. This led to memory corruption in some rare cases. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: create debugfs interface to trigger fw crashMichal Kazior1-0/+57
This can be useful for testing. To perform a forced firmware crash write 'crash' to 'simulate_fw_crash' debugfs file. E.g. echo crash > /sys/kernel/debug/ieee80211/phy1/ath10k/simulate_fw_crash Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: fix NULL dereference for injected packetsMichal Kazior1-4/+8
Tx processing functions dereference vif and caused NULL to be dereferenced for injected frames. Don't call these functions at all for injected frames. It doesn't make much sense to do so anyway. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: implement fw crash simulation commandMichal Kazior2-0/+38
This can be useful to test FW crash handling. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: implement device recoveryMichal Kazior7-19/+144
Restart the hardware if FW crashes. If FW crashes during recovery we leave the hardware in a "wedged" state to avoid recursive recoveries. When in "wedged" state userspace may bring interfaces down (to issue stop()) and then bring one interface (to issue start()) to reload hardware manually. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: skip fw stats debugfs interface if device is downMichal Kazior1-14/+16
If the device is not running then there may be no FW at all to send the query to. If the FW is already there it might still trigger a crash if the command is sent before the device is fully initialized. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: store firmware files in memoryMichal Kazior2-52/+109
Different FW versions may provide different functions thus mean different hw capabilities advertised to mac80211. It is safe to swap firmware files on disk during driver/device runtime without worries. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: defer hw setup to start/stop mac80211 hooksMichal Kazior3-32/+81
This fixes suspend-to-disk. The hardware is now re-initialized upon freeze/thaw properly. This also makes suspend/resume re-initialize the hardware as WoWLAN support is not done yet. With some little work it should be possible to support hw reconfiguration for hw/fw recovery. HW must be initialized once before registering to mac80211 because FW determinates what hw capabilities can be advertised. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: make sure all resources are freed upon ath10k_stop()Michal Kazior1-0/+25
This is necessary for proper hw reconfiguration and to avoid memory leaks. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: move free_vdev_map initializationMichal Kazior1-2/+2
This is necessary for hw reconfiguration to work. Since mac80211 is not calling remove_interface() is such case we must reset free_vdev_map. Also use a define instead of a hardcoded value for vdev map initialization. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: decouple suspend codeMichal Kazior5-154/+138
Split up fw-related and hw-related suspension code. Although we don't advertise WoW support to mac80211 yet it's useful to keep the code in suspend/resume hooks. At this point there's no need to keep pci pm ops. In case of WoW mac80211 calls ath10k_suspend() which should take care of entering low-power mode. In case WoW is not available mac80211 will go through regular interface teradown and use start/stop. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-07-30ath10k: reset BMI state upon initMichal Kazior3-0/+9
This is necessary if we want to be able to restart hw on-the-fly. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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