Commit Graph

310 Commits

Author SHA1 Message Date
Ben Greear
60028a819d ath10k: fix spelling mistakes and add details to mac logging
A bit of general cleanup to make debug messages more useful.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:39 +02:00
Ben Greear
2f9eec0b71 ath10k: scan should handle scan-start-failed event properly
In case firmware fails to start the scan, then complete
the start condition and clean up so that driver does not
block on timeout.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-15 16:50:38 +02:00
David S. Miller
c8ac18f200 Major changes:
iwlwifi:
 
 * more work for new devices (4165 / 8260)
 * cleanups / improvemnts in rate control
 * fixes for TDLS
 * major statistics work from Johannes - more to come
 * improvements for the fw error dump infrastructure
 * usual amount of small fixes here and there (scan, D0i3 etc...)
 * add support for beamforming
 * enable stuck queue detection for iwlmvm
 * a few fixes for EBS scan
 * fixes for various failure paths
 * improvements for TDLS Offchannel
 
 wil6210:
 
 * performance tuning
 * some AP features
 
 brcm80211:
 
 * rework some code in SDIO part of the brcmfmac driver related to
   suspend/resume that were found doing stress testing
 * in PCIe part scheduling of worker thread needed to be relaxed
 * minor fixes and exposing firmware revision information to
   user-space, ie. ethtool.
 
 mwifiex:
 
 * enhancements for change virtual interface handling
 * remove coupling between netdev and FW supported interface
   combination, now conversion from any type of supported interface
   types to any other type is possible
 * DFS support in AP mode
 
 ath9k:
 
 * fix calibration issues on some boards
 * Wake-on-WLAN improvements
 
 ath10k:
 
 * add support for qca6174 hardware
 * enable RX batching to reduce CPU load
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Merge tag 'wireless-drivers-next-for-davem-2015-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next

Major changes:

iwlwifi:

* more work for new devices (4165 / 8260)
* cleanups / improvemnts in rate control
* fixes for TDLS
* major statistics work from Johannes - more to come
* improvements for the fw error dump infrastructure
* usual amount of small fixes here and there (scan, D0i3 etc...)
* add support for beamforming
* enable stuck queue detection for iwlmvm
* a few fixes for EBS scan
* fixes for various failure paths
* improvements for TDLS Offchannel

wil6210:

* performance tuning
* some AP features

brcm80211:

* rework some code in SDIO part of the brcmfmac driver related to
  suspend/resume that were found doing stress testing
* in PCIe part scheduling of worker thread needed to be relaxed
* minor fixes and exposing firmware revision information to
  user-space, ie. ethtool.

mwifiex:

* enhancements for change virtual interface handling
* remove coupling between netdev and FW supported interface
  combination, now conversion from any type of supported interface
  types to any other type is possible
* DFS support in AP mode

ath9k:

* fix calibration issues on some boards
* Wake-on-WLAN improvements

ath10k:

* add support for qca6174 hardware
* enable RX batching to reduce CPU load

Conflicts:
	drivers/net/wireless/rtlwifi/pci.c

Conflict resolution is to get rid of the 'end' label and keep
the rest.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-09 12:13:58 -08:00
Kalle Valo
d53071143a Merge ath-next from ath.git
Major changes in ath10k:

* add support for qca6174 hardware
* enable RX batching to reduce CPU load
2015-02-06 16:14:11 +02:00
David S. Miller
940288b6a5 Last round of updates for net-next:
* revert a patch that caused a regression with mesh userspace (Bob)
  * fix a number of suspend/resume related races
    (from Emmanuel, Luca and myself - we'll look at backporting later)
  * add software implementations for new ciphers (Jouni)
  * add a new ACPI ID for Broadcom's rfkill (Mika)
  * allow using netns FD for wireless (Vadim)
  * some other cleanups (various)
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Merge tag 'mac80211-next-for-davem-2015-02-03' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Last round of updates for net-next:
 * revert a patch that caused a regression with mesh userspace (Bob)
 * fix a number of suspend/resume related races
   (from Emmanuel, Luca and myself - we'll look at backporting later)
 * add software implementations for new ciphers (Jouni)
 * add a new ACPI ID for Broadcom's rfkill (Mika)
 * allow using netns FD for wireless (Vadim)
 * some other cleanups (various)

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-04 14:57:45 -08:00
Michal Kazior
af21319fcd ath10k: fix beacon deadlock
This should fix a very rare occurrence of the following deadlock:

  [<ffffffffa018265e>] ath10k_wmi_tx_beacons_nowait+0x1e/0x50 [ath10k_core]
  [<ffffffffa01829b6>] ath10k_wmi_op_ep_tx_credits+0x16/0x40 [ath10k_core]
  [<ffffffffa017d685>] ath10k_htc_send+0x285/0x3d0 [ath10k_core]
  [<ffffffffa0184b81>] ath10k_wmi_cmd_send_nowait+0x81/0x110 [ath10k_core]
  [<ffffffffa0184c61>] ath10k_wmi_tx_beacon_nowait.part.33+0x51/0x90 [ath10k_core]
  [<ffffffffa0184cd0>] ath10k_wmi_tx_beacons_iter+0x30/0x40 [ath10k_core]
  [<ffffffff81882246>] __iterate_active_interfaces+0xa6/0x100
  [<ffffffffa0184ca0>] ? ath10k_wmi_tx_beacon_nowait.part.33+0x90/0x90 [ath10k_core]
  [<ffffffff818822ae>] ieee80211_iterate_active_interfaces_atomic+0xe/0x10
  [<ffffffffa0182676>] ath10k_wmi_tx_beacons_nowait+0x36/0x50 [ath10k_core]
  [<ffffffffa01829b6>] ath10k_wmi_op_ep_tx_credits+0x16/0x40 [ath10k_core]
  [<ffffffffa017d140>] ath10k_htc_rx+0x280/0x410 [ath10k_core]
  [<ffffffffa01bcbf0>] ? ath10k_ce_completed_recv_next+0x60/0x80 [ath10k_pci]
  [<ffffffffa01bc6ab>] ath10k_pci_ce_recv_data+0x11b/0x1d0 [ath10k_pci]
  [<ffffffffa01bcf44>] ath10k_ce_per_engine_service+0x64/0xc0 [ath10k_pci]
  [<ffffffffa01bcfc2>] ath10k_ce_per_engine_service_any+0x22/0x50 [ath10k_pci]
  [<ffffffffa01bc4d0>] ath10k_pci_tasklet+0x30/0x90 [ath10k_pci]
  [<ffffffff81055a55>] tasklet_action+0xc5/0x100

To prevent this make sure to release ar->data_lock
while calling to ath10k_wmi_beacon_send_ref_nowait().

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-04 09:17:06 +02:00
SenthilKumar Jegadeesan
627613f8f0 ath10k: prevent setting wrong key idx for station
Ath10k driver sets wrong default key idx that results in
sending unicast frames with multicast key.

The reason for this behavior is that cached broadcast key
is installed for station MAC address on association. After
dot1x completes, unicast key is installed for station
MAC address. Default key idx is set to broadcast key id when
driver tries to send broadcast frame. This causes firmware
to use broadcast key id to transmit unicast frames to stations.

Used TX_USAGE flag to set default key for stations.

Added callback for setting unicast default idx which will be
invoked on every default key idx configuration.

Signed-off-by: SenthilKumar Jegadeesan <sjegadee@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-02-04 09:14:43 +02:00
Yanbo Li
d68bb12ab4 ath10k: Enable the MCS8 and MCS9 at 2.4G band
Enable the MCS8 and MCS9 support for 2.4G band, it will
use these data rate with other devices having the same
capability.

Signed-off-by: Yanbo Li <yanbol@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-29 12:25:17 +02:00
Michal Kazior
46725b1533 ath10k: disable sta keepalive
Firmware revisions providing sta keepalive service
have it enabled by default.

mac80211 already does idle connection polling so
it makes no sense to duplicate this in ath10k.
mac80211 wouldn't even know of the offloaded
keepalive NullFunc frames.

This prevents sending out some extraneous frames
on the air.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-29 12:15:45 +02:00
Michal Kazior
7fc979a79d ath10k: use per-vif wmm param setup if possible
New wmi-tlv firmware for qca6174 supports this.

This should fix issues related to multi-vif WMM.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-29 12:12:41 +02:00
Michal Kazior
5e752e42f6 ath10k: move wmm param storage to vif
mac80211 already requests WMM per vif but firmware
wasn't able to handle this until now. However new
wmi-tlv firmware for qca6174 is capable of this.

This prepares per-vif WMM param setup.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-29 12:11:44 +02:00
Marek Kwaczynski
e4e82e9af8 ath10k: remove sw encryption for pmf
Software encryption was never necessary.
Tested with fw 636 and fw 10.x.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-27 16:25:14 +02:00
Michal Kazior
b0e5615493 ath10k: disable uapsd autotrigger
Only userspace can make an educated decision when
a trigger frame is required so make sure the
autotrigger service is disabled.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-27 16:21:23 +02:00
Michal Kazior
bf0a26d31b ath10k: fix nullfunc workaround
The workaround couldn't work correctly because the
802.11 header wasn't properly stripped of QoS Data
bit so it wasn't recognized in the later parts of
tx path as NullFunc frame and ended up in HTT Tx
instead of HTT Mgmt Tx.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-27 16:18:41 +02:00
Michal Kazior
ba2479fe65 ath10k: fix dtim period with beacon templates
Firmware supporting beacon templates (i.e. wmi-tlv
for qca6174) doesn't implicitly take dtim period
from the template. Instead it requires vdev param
to be set accordingly.

This fixes dtim period being stuck at 3.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-27 16:18:34 +02:00
Johannes Berg
3cb10943fc ath10k: use IEEE80211_HW_SW_CRYPTO_CONTROL
The ath10k driver only supports HW crypto (except for management
frames or so - CMAC needs to be done in software). Make it use
the new IEEE80211_HW_SW_CRYPTO_CONTROL flag to ensure mac80211
doesn't erroneously attempt to use software crypto.

Taking through my tree after Kalle's ACK to avoid breaking the
ath10k driver with the next crypto patches.

Acked-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2015-01-27 11:01:19 +01:00
Kalle Valo
6b03e32d57 Merge commit 'c1e140bf79d817d4a7aa9932eb98b0359c87af33' from mac80211-next
Patch "ath9k: Fix no-ack frame status" needs these mac80211 patches:

commit 5cf16616e1
Author: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date:   Wed Dec 10 21:26:11 2014 +0530

    mac80211: Fix accounting of multicast frames

commit 6b127c71fb
Author: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date:   Wed Dec 10 21:26:10 2014 +0530

    mac80211: Move IEEE80211_TX_CTL_PS_RESPONSE

Conflicts:
	drivers/net/wireless/ath/wil6210/cfg80211.c
	drivers/staging/rtl8723au/os_dep/ioctl_cfg80211.c
2015-01-22 14:49:44 +02:00
John W. Linville
f6eaf1e063 ath10k: document switch case fall-through in __ath10k_scan_finish
Add a comment for indicating that the ATH10K_SCAN_RUNNING case falls
through to the ATH10K_SCAN_ABORTING case in __ath10k_scan_finish.  This
will document that the lack of a break is intentional.

Coverity: CID 1260017

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15 12:35:48 +02:00
Michal Kazior
fbb8f1b729 ath10k: implement support for ap beacon offloading
New firmware revisions support beacon and probe
response templates instead. This means SWBA events
are no longer delivered for these firmware
revisions.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-15 12:30:41 +02:00
Nicholas Mc Guire
38e2a64417 ath10k: fixup wait_for_completion_timeout return handling
wait_for_completion_timeout does not return negative values so the tests
for <= 0 are not needed and the case differentiation in the error handling
path unnecessary.

Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13 16:19:59 +02:00
Rajkumar Manoharan
f5045988b9 ath10k: Implement sta_add_debugfs
Add per station debugfs files when a station is added to mac80211's
station list. This helps to group peer specific debugfs entries
altogether. Right now this callback adds support to test aggregation
procedures (addba/addba_resp/delba) manually.

To enable automatic aggregation in target,
echo 0 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/
	stations/XX:XX:XX:XX:XX:XX/aggr_mode

For manual mode,
echo 1 >/sys/kernel/debug/ieee80211/phyX/netdev:wlanX/
	stations/XX:XX:XX:XX:XX:XX/aggr_mode

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2015-01-13 16:13:13 +02:00
Peter Oh
6faab1273f ath10k: set phymode to 11b when NO_OFDM flag set
phymode should use 11b only if NO_OFDM flags is set.
Hence check up channel flag for NO_OFDM and set to
11b.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23 17:24:50 +02:00
Janusz Dziedzic
55884c045d ath10k: send (re)assoc peer command when NSS changed
Assoc peer command contain information about NSS.
When we will get IEEE80211_RC_NSS_CHANGED we should
also send (re) assoc peer command to be sure firmware
will know about it and RC will work correctly.

This was found during code review.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23 17:22:46 +02:00
Janusz Dziedzic
627d9841ea ath10k: fix low TX rates when IBSS and HT
This fix TX problem when IBSS used in HT mode.
Before we used 6Mbps all the time for TX direction.

Reported-by: Yeoh Chun-Yeow <yeohchunyeow@gmail.com>
Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23 17:22:30 +02:00
Rajkumar Manoharan
4a16fbec1c ath10k: add 10.2.4 firmware support
10.2.4 firmware uses bitmask in wmi_resource_config to configure
10.2 firmware features like airtime fairness and rx batch mode instead
of maintaining separete bool entry. This allows new features that can be
configure during init time without breaking backward compatibility.

kvalo: use WMI op version, bump up FW API to 4 to not break older versions of
ath10k

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23 17:18:12 +02:00
Kalle Valo
5cc7caf46c ath10k: use wmi op version to check which iface combination to use
ATH10K_FW_FEATURE_WMI_10X should not be used for anymore as that's
now deprecated, instead use wmi op version.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-23 17:17:56 +02:00
Michal Kazior
75d2bd4883 ath10k: advertise p2p dev support
Firmware doesn't allow precise tx rate control so
P2P wasn't entirely spec compliant (it was using
CCK rates in some cases).

The only way to make sure firmware doesn't use CCK
rates is to have a vdev with P2P subtype used for
scanning and tx. This can be done via a special
dedicated P2P device interface support.

This also removes the ancient hack from ath10k in
favor of p2pdev.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:26:04 +02:00
Michal Kazior
bf14e65cb7 ath10k: enable per-vif sta powersave
Per-vif bss_conf.ps should be used to configure
powersave.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:25:57 +02:00
Michal Kazior
526549a850 ath10k: prevent invalid ps timeout config
Setting 0 ps timeout to firmware yields very poor
latency and traffic issues. This is the case when
multi-vif is active.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:25:47 +02:00
Michal Kazior
9f9b574624 ath10k: fix STA u-APSD
To comply with WMM-PS the device shouldn't wake up
with a NullFunc frame pair when tx-ing. Instead PM
bit on each tx frame should be used.

To make this work correctly firmware needs to be
told to use a different STA PS wake threshold when
u-APSD is enabled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:25:37 +02:00
Michal Kazior
91b12089b1 ath10k: improve 11b coex
Some firmware revisions need peer phymode to be
specified as MODE_11B when associating as station
to a 11b AP. Otherwise they can starve other
stations.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:25:30 +02:00
Peter Oh
1010ba4c5d ath10k: unregister and remove frag_threshold callback
Setting fragmentation threshold has not been supported by
any of firmware versions, hence unregister the callback and
remove the function.

Signed-off-by: Peter Oh <poh@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-16 09:11:33 +02:00
Johannes Berg
848955ccf0 mac80211: move U-APSD enablement to vif flags
In order to let drivers have more dynamic U-APSD support,
move the enablement flag to the virtual interface driver
flags. This lets drivers not only set it up differently
for different interfaces, but also enable/disable on the
fly if needed.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-12-15 12:34:45 +01:00
Michal Kazior
d7579d12c3 ath10k: introduce wmi ops
Since the 10.x fw branch support was introduced it
became apparent ath10k will need to be able to
deal with different fw ABIs eventually.

The patch creates an abstraction for dealing with
command and event structures across different ABIs
and mostly gets rid of the
ATH10K_FW_FEATURE_WMI_10X flag usage.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-08 17:39:08 +02:00
Vivek Natarajan
acab6400da ath10k: do not limit RTS threshold value to 2347
Increase the rts threshold from the legacy value of 2347 to support higher
threshold limit.

Signed-off-by: Vivek Natarajan <nataraja@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-12-01 08:55:13 +02:00
Michal Kazior
cfd1061e9b ath10k: fix station count enforcement
The number of peers isn't directly translatable to
the number of stations because ath10k needs to
reserve a few extra peers for special cases like
multi-vif concurrency.

The previous limit was 126 and 15 stations in AP
mode for 10.x and main firmware branches
respectively. The limit is now 128 and 16 which
was the original intention.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:44:19 +02:00
Michal Kazior
292a753d4b ath10k: clean up num_peers locking
The var was supposed to be protected by data_lock
but it wasn't so in all instances. It's actually
not necessary to have a spinlock protected
num_peers so drop it.

All instances of num_peers are already within
conf_mutex sections so use that.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:44:10 +02:00
Michal Kazior
a52c028272 ath10k: add missing goto
This prevents warning spamming if peer creation
fails during sta_state in some cases.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:44:01 +02:00
Sujith Manoharan
5d011f5c1f ath10k: fix bug reported by lockdep
ath10k_tx_wep_key_work() acquires conf_mutex, so
cancelling it when conf_mutex is already taken
in ath10k_remove_interface() is incorrect, so
move it outside the lock.

Snippet from the lockdep report:

kernel: ======================================================
kernel: [ INFO: possible circular locking dependency detected ]
kernel: 3.18.0-rc5-wl-debug #34 Tainted: G           O
kernel: -------------------------------------------------------
kernel: hostapd/451 is trying to acquire lock:
kernel:  ((&arvif->wep_key_work)){+.+...}, at: [<ffffffff810872d5>] flush_work+0x5/0x290
kernel: but task is already holding lock:
kernel:  (&ar->conf_mutex){+.+.+.}, at: [<ffffffffa0b99f00>] ath10k_remove_interface+0x40/0x290 [ath10k_core]
kernel: which lock already depends on the new lock.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:37:38 +02:00
Sujith Manoharan
ae1671318e ath10k: fix locking for WEP keys
peer->keys needs to be protected by data_lock
since it is also accessed from the WMI path.

Both install() and clear() routines for peer
keys modify the key contents, so use the data_lock
to avoid races.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:37:26 +02:00
Sujith Manoharan
504f6cdf4a ath10k: fix shared WEP
When static keys are used in shared WEP, when a
station is associated, message 3 is sent with an
encrypted payload. But, for subsequent
authentications that are triggered without a
deauth, the auth frame is decrypted by the HW.

To handle this, check if the WEP keys have already
been set for the peer and if so, mark the
frame as decrypted. This scenario can happen
when a station changes its default TX key and initiates
a new authentication sequence.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:37:08 +02:00
Michal Kazior
7305d3e02d ath10k: fix offchannel cancel failures
When mac80211 requests driver to cancel a hw roc
the driver must not call the expired() callback or
else roc will fail in some cases depending on how
things get scheduled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:30:16 +02:00
Michal Kazior
dcca0bdb48 ath10k: make hw roc more reliable
With P2P concurrency requested hw roc duration
time can be very small. Some firmware revisions
refuse scan requests with too small channel dwell
time.

This prevents messages like, e.g. with connected
STA vif and performing P2P Find:

 ath10k_pci 0000:00:05.0: failed to switch to channel for roc scan
 ieee80211 phy3: failed to start next HW ROC (-110)

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:30:00 +02:00
Michal Kazior
8d6d362436 ath10k: fix offchan reliability
New firmware revisions don't need peer creation
when doing offchannel tx. Earlier revisions would
queue and never release frames without a peer.

This prevent new firmware revisions from stopping
replenishing wmi-htc tx credits and improves
reliability of offchannel tx which would sometimes
silently fail.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:29:50 +02:00
Michal Kazior
dbdcc2620b ath10k: remove extra_tx_headroom
Comment was out-of-date. The headroom is no longer
necessary because HTT Tx fragment list is stored
in dma pool item associated with each sk_buff.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:27:45 +02:00
Ben Greear
b116ea190b ath10k: use configured nss instead of max nss
When re-associating a station, the nss was set back to
maximum value even if user had configured small number
of tx chains.  So, pay attention to user's config in
this case as well.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:24:56 +02:00
Ben Greear
5572a95b4b ath10k: apply chainmask settings to vdev on creation
It appears it takes more than just setting the
hardware's chainmask to make things work well.  Without
this patch, a vdev would only use 1x1 rates when chainmask
was set to 0x3.

Setting the 'nss' (number of spatial streams) on the vdev
helps the firmware's rate-control algorithm work properly.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-26 08:24:03 +02:00
John W. Linville
9b5186b4be Merge branch 'for-linville' of git://github.com/kvalo/ath
Kalle Valo <kvalo@qca.qualcomm.com> says:

"One ath6kl patch and rest for ath10k, but nothing really major which
stands out. Most notable:

o fix resume (Bartosz)

o firmware restart is now faster and more reliable (Michal)

o it's now possible to test hardware restart functionality without
  crashing the firmware using hw-restart parameter with
  simulate_fw_crash debugfs file (Michal)"

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-17 15:28:39 -05:00
Rajkumar Manoharan
78157a1c44 ath10k: advertise support for AP mode channel width changes
This will enable AP mode to change channel width dynamically
based on 20/40 intolerance report sent by associated client.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-11-17 16:47:11 +02:00
John W. Linville
bf515fb11a This relatively large batch of changes is comprised of the
following:
  * large mac80211-hwsim changes from Ben, Jukka and a bit myself
  * OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
    University in Prague and Volkswagen Group Research
  * minstrel VHT work from Karl
  * more CSA work from Luca
  * WMM admission control support in mac80211 (myself)
  * various smaller fixes, spelling corrections, and minor API additions
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Merge tag 'mac80211-next-for-john-2014-11-04' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"This relatively large batch of changes is comprised of the
following:
 * large mac80211-hwsim changes from Ben, Jukka and a bit myself
 * OCB/WAVE/11p support from Rostislav on behalf of the Czech Technical
   University in Prague and Volkswagen Group Research
 * minstrel VHT work from Karl
 * more CSA work from Luca
 * WMM admission control support in mac80211 (myself)
 * various smaller fixes, spelling corrections, and minor API additions"

Conflicts:
	drivers/net/wireless/ath/wil6210/cfg80211.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-11-04 16:18:12 -05:00
Eliad Peller
cf2c92d840 mac80211: replace restart_complete() with reconfig_complete()
Drivers might want to know also when mac80211 has
completed reconfiguring after resume (e.g. in order
to know when frames can be passed to mac80211).

Rename restart_complete() to a more-generic reconfig_complete(),
and add a new enum to indicate the reconfiguration type.

Update the current users with the new prototype.

Signed-off-by: Eliad Peller <eliadx.peller@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-11-04 13:49:00 +01:00
Michal Kazior
7962b0d898 ath10k: speed up hw recovery
In some cases hw recovery was taking an absurdly
long time due to ath10k waiting for things that
would never really complete.

Instead of waiting for inevitable timeouts poke
all completions and wakequeues and check if it's
still worth waiting.

Reading/writing ar->state requires conf_mutex.
Since waiters might be holding it introduce a new
flag CRASH_FLUSH so it's possible to tell waiters
to abort whatever they were waiting for.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-31 02:32:28 +02:00
Michal Kazior
4eb2e16487 ath10k: avoid possible deadlock with scan timeout
This should prevent deadlock predicted by the
following splat:

 ======================================================
 [ INFO: possible circular locking dependency detected ]
 3.17.0-wl-ath+ #67 Not tainted
 -------------------------------------------------------
 kworker/u32:1/7230 is trying to acquire lock:
  (&ar->conf_mutex){+.+.+.}, at: [<ffffffffa040a57d>] ath10k_scan_timeout_work+0x2d/0x50 [ath10k_core]

 but task is already holding lock:
  ((&(&ar->scan.timeout)->work)){+.+...}, at: [<ffffffff8106dae1>] process_one_work+0x151/0x470

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 ((&(&ar->scan.timeout)->work)){+.+...}:
        [<ffffffff810a12e5>] lock_acquire+0x85/0x100
        [<ffffffff8106cb4d>] flush_work+0x3d/0x270
        [<ffffffff8106e49d>] __cancel_work_timer+0x7d/0x110
        [<ffffffff8106e543>] cancel_delayed_work_sync+0x13/0x20
        [<ffffffffa0409f16>] ath10k_cancel_remain_on_channel+0x36/0x60 [ath10k_core]
        [<ffffffffa028c75c>] ieee80211_cancel_roc+0x1cc/0x2f0 [mac80211]
        [<ffffffffa028c8a2>] ieee80211_mgmt_tx_cancel_wait+0x22/0x30 [mac80211]
        [<ffffffffa0132288>] nl80211_tx_mgmt_cancel_wait+0xa8/0x130 [cfg80211]
        [<ffffffff816654a5>] genl_family_rcv_msg+0x1a5/0x3c0
        [<ffffffff81665749>] genl_rcv_msg+0x89/0xc0
        [<ffffffff81664e91>] netlink_rcv_skb+0xb1/0xc0
        [<ffffffff816650bc>] genl_rcv+0x2c/0x40
        [<ffffffff8166474d>] netlink_unicast+0x18d/0x200
        [<ffffffff81664add>] netlink_sendmsg+0x31d/0x430
        [<ffffffff8161a9ac>] sock_sendmsg+0x9c/0xd0
        [<ffffffff8161b469>] ___sys_sendmsg+0x389/0x3a0
        [<ffffffff8161bed9>] __sys_sendmsg+0x49/0x90
        [<ffffffff8161bf32>] SyS_sendmsg+0x12/0x20
        [<ffffffff8174c456>] system_call_fastpath+0x1a/0x1f

 -> #0 (&ar->conf_mutex){+.+.+.}:
        [<ffffffff810a0bde>] __lock_acquire+0x1b6e/0x1ce0
        [<ffffffff810a12e5>] lock_acquire+0x85/0x100
        [<ffffffff817491eb>] mutex_lock_nested+0x4b/0x370
        [<ffffffffa040a57d>] ath10k_scan_timeout_work+0x2d/0x50 [ath10k_core]
        [<ffffffff8106db41>] process_one_work+0x1b1/0x470
        [<ffffffff8106df63>] worker_thread+0x123/0x460
        [<ffffffff81073f34>] kthread+0xe4/0x100
        [<ffffffff8174c3ac>] ret_from_fork+0x7c/0xb0

 other info that might help us debug this:

  Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock((&(&ar->scan.timeout)->work));
                                lock(&ar->conf_mutex);
                                lock((&(&ar->scan.timeout)->work));
   lock(&ar->conf_mutex);

  *** DEADLOCK ***

Reported-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-31 02:16:30 +02:00
John W. Linville
490f0dc4d5 Merge tag 'for-linville-20141024' of git://github.com/kvalo/ath
Conflicts:
	drivers/net/wireless/ath/wil6210/wil6210.h
2014-10-27 14:09:36 -04:00
Michal Kazior
56a0dee77e ath10k: call correct function for frag threshold
Rts threshold was being configured instead of
fragmentation threshold.

Keep in mind available firmware binaries don't
seem to support fragmentation anyway so this
doesn't fix fragmentation threshold per se.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-24 16:35:54 +03:00
Felix Fietkau
fa1d4df841 ath10k: add SURVEY_INFO_IN_USE for current channel on survey
When user space requests survey info, it is useful to know which of the survey
data refers to the channel that is currently actively being used.  One of the
use cases is getting the current channel noise for status output.  Without this
flag you would have to look up the channel separately and then compare it
against the frequency in the survey output in user space.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-24 16:35:18 +03:00
Michal Kazior
7d9d5587c2 ath10k: use bss_info as txpower source
This simply changes the source for txpower setup.
It does not make ath10k use different txpower
values for different vifs.

This will make it easier to implement chanctx in
ath10k in the future.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-21 10:52:38 +03:00
Michal Kazior
077efc8c42 ath10k: clean up sta auth/assoc code
The code can be symmetrical so make it so. This
makes it easier to understand and work with.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-21 10:33:23 +03:00
Michal Kazior
b1ecde36ad ath10k: skip some commands on reassoc
It doesn't make much sense to reconfigure peer
completely upon reassociation. This will make it
easier to have a more uniform association code
across different modes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-21 10:33:03 +03:00
Michal Kazior
590922a824 ath10k: clean up assoc code
There's no need to pass bss_conf explicitly as it
is accessible via vif pointer. This requires
slight changes in function prototypes. While at it
clean up listen interval workaround/command.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-21 10:32:31 +03:00
Rajkumar Manoharan
82d7aba715 ath10k: fix kernel panic while shutting down AP
Based on GFP flag given to DMA coherent allocation, the behaviour of
dma_free_coherent is changed. This behavioural diffrence is noticeable
in ARM platform. If DMA memory is allocated with GFP_KERNEL, free
coherent can not be called inside spin lock. This is causing kernel
crash in ARM platforms. Fix this by changing GFP flag to atomic.

This is most likely a regression from commit 64badcb6d6 ("ath10k: workaround
fw beaconing bug").

Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-12 20:43:05 +03:00
Janusz Dziedzic
3c7984e97f ath10k: don't create bssid peer for ibss
It's not really necessary to create bssid peer for
bssid. Self-address peer is sufficient.

This prevents some firmware revisions from crashing.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-08 13:21:06 +03:00
Ben Greear
16c1117675 ath10k: use 64-bit vdev map
This can allow more than 32 stations to be supported
without over-running the bitmap.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-01 11:21:43 +03:00
Ben Greear
6cddcc7ac2 ath10k: support ethtool stats
Add support for reading firmware stats through the ethtool
API.  This may be easier for applications to manipulate
compared to parsing a text based debugfs file.

kvalo: remove unneeded ifdefs, call ath10k_debug_fw_stats_request() and added
simple error handling

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-10-01 11:18:20 +03:00
John W. Linville
687b93082c Merge branch 'for-linville' of git://github.com/kvalo/ath 2014-09-26 13:35:46 -04:00
Michal Kazior
2d66721c7b ath10k: deduplicate wmi_channel code
The structure is being set up in 2 places.
Deduplicate the code by creating a helper.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-23 12:30:58 +03:00
Michal Kazior
fdb959c7e4 ath10k: fix tx/rx chainmask init
Firmware reports the number of RF chains so use
that for initialization of supp_{tx,rx}_chainmask
instead of using a macro for 3x3 chips.

This should make tx/rx chainmask reports correct
for chips other than 3x3.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-23 12:30:16 +03:00
Michal Kazior
64badcb6d6 ath10k: workaround fw beaconing bug
Some firmware revisions don't wait for beacon tx
completion before sending another SWBA event. This
could lead to hardware using old (freed) beacon
data in some cases, e.g. tx credit starvation
combined with missed TBTT. This is very very rare.

On non-IOMMU-enabled hosts this could be a
possible security issue because hw could beacon
some random data on the air.  On IOMMU-enabled
hosts DMAR faults would occur in most cases and
target device would crash.

Since there are no beacon tx completions (implicit
nor explicit) propagated to host the only
workaround for this is to allocate a DMA-coherent
buffer for a lifetime of a vif and use it for all
beacon tx commands. Worst case for this approach
is some beacons may become corrupted, e.g. garbled
IEs or out-of-date TIM bitmap.

Keep the original beacon-related code as-is in
case future firmware revisions solve this problem
so that the old path can be easily re-enabled with
a fw_feature flag.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-23 12:28:52 +03:00
Kalle Valo
b25f32cb02 ath10k: use ether_addr_copy()
As suggeested by checkpatch:

WARNING: Prefer ether_addr_copy() over memcpy() if the Ethernet addresses are __aligned(2)

In wmi.c I had to change due to sparse warnings copying of struct wmi_mac_addr
from form &cmd->peer_macaddr.addr to cmd->peer_macaddr.addr. In
ath10k_wmi_set_ap_ps_param() I also added the missing ".addr" to the copy
command.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-18 10:47:03 +03:00
Kalle Valo
d8bb26b964 ath10k: else is not generally useful after a break or return
Fixes checkpatch warnings:

WARNING: else is not generally useful after a break or return

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-18 10:46:25 +03:00
Kalle Valo
af762c0b0d ath10k: fix missing a blank line after declarations
Fixes checkpatch warnings:

WARNING: Missing a blank line after declarations

Please note that some of the cases I fixed by moving the variable declarations
to the beginning of the function, which is the preferred style in ath10k.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-18 10:45:32 +03:00
Kalle Valo
c6e2e60e85 ath10k: fix use of multiple blank lines
Fixes checkpatch warnings:

CHECK: Please don't use multiple blank lines

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-18 10:45:20 +03:00
Kalle Valo
5b07e07fd0 ath10k: fix checkpatch warnings about parenthesis alignment
CHECK: Alignment should match open parenthesis

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-18 10:41:18 +03:00
John W. Linville
6bd2bd27ba This time, I have some rate minstrel improvements, support for a very
small feature from CCX that Steinar reverse-engineered, dynamic ACK
 timeout support, a number of changes for TDLS, early support for radio
 resource measurement and many fixes. Also, I'm changing a number of
 places to clear key memory when it's freed and Intel claims copyright
 for code they developed.
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Merge tag 'mac80211-next-for-john-2014-09-12' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg <johannes@sipsolutions.net> says:

"This time, I have some rate minstrel improvements, support for a very
small feature from CCX that Steinar reverse-engineered, dynamic ACK
timeout support, a number of changes for TDLS, early support for radio
resource measurement and many fixes. Also, I'm changing a number of
places to clear key memory when it's freed and Intel claims copyright
for code they developed."

Conflicts:
	net/mac80211/iface.c

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-15 14:51:23 -04:00
Kalle Valo
43d2a30fa8 ath10k: add testmode
Add testmode interface for starting and using UTF firmware which is used to run
factory tests. This is implemented by adding new state ATH10K_STATE_UTF and user
space can enable this state with ATH10K_TM_CMD_UTF_START command. To go back to
normal mode user space can send ATH10K_TM_CMD_UTF_STOP.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-11 23:42:36 +03:00
Eliad Peller
0d8614b4b9 mac80211: replace SMPS hw flags with wiphy feature bits
Use the new static_smps / dynamic_smps feature bits
instead of mac80211-internal hw flags.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-09-11 13:37:02 +02:00
Michal Kazior
2b37c29552 ath10k: don't access tx_info while overwriting it
Nothing important was being overwritten so it
didn't yield any bugs yet.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-02 16:19:01 +03:00
Michal Kazior
e556f11184 ath10k: stop monitor vdev for sta assoc
This prevents some fw revisions from crashing in
many cases when user is trying to run a
promiscuous station interface (e.g. sniffing,
4addr bridge).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-02 10:28:47 +03:00
Michal Kazior
1933747f5c ath10k: fix monitor start/stop sequences
Fix some cases where monitor start failure left
the driver in a confused state.

This also makes the monitor code simpler.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-02 10:28:36 +03:00
Michal Kazior
a4841eb639 ath10k: fix num_legacy_stations tracking
If a station was reassociated, i.e. due to change
of supported rates update via sta_rc_update() the
num_legacy_stations would be (incorrectly) bumped
up leading to unbalanced usage of the var. This in
turn could lock rtscts protection up as enabled.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-09-02 10:16:54 +03:00
Michal Kazior
7aa7a72a23 ath10k: improve logging to include dev id
This makes it a lot easier to log and debug
messages if there's more than 1 ath10k device on a
system.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-26 19:04:48 +03:00
Ben Greear
f2bc4d203e ath10k: fix typo in error message
tranmist -> transmit

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:22:53 +03:00
Ben Greear
a9aefb3b37 ath10k: improve vdev map handling
Check vdev map has space before calling ffs,
fix invalid cleanup in failure to create vdev
case.

Open-code the BIT() logic since BIT does not properly
handle 64-bit bitfields and future patches will make
use of larger bitfields.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-14 15:17:32 +03:00
Michal Kazior
e7b541948b ath10k: embed ar_pci inside ar
Use the common convention of embedding private
structures inside parent structures. This
reduces allocations and simplifies pci probing
code.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-12 10:53:42 +03:00
Michal Kazior
5c81c7fd62 ath10k: introduce a stricter scan state machine
This aims at fixing some rare scan bugs related to
firmware reporting unexpected scan event
sequences.

One such bug was if spectral scan phyerr reporting
prevented firmware from properly propagating scan
events to host. This led to scan timeout. After
that next scan would trigger scan completed event
first (before scan started event) leading to
ar->scan.in_progress and timeout timer states to
be overwritten incorrectly and making the very
next scan to hang forever.

Reported-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-12 10:47:48 +03:00
Simon Wunderlich
855aed1220 ath10k: add spectral scan feature
Adds the spectral scan feature for ath10k. The spectral scan is triggered by
configuring a mode through a debugfs control file. Samples can be gathered via
another relay debugfs file.

Essentially, to try it out:

ip link set dev wlan0 up
echo background > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
echo trigger > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
iw dev wlan0 scan
echo disable > /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan_ctl
cat /sys/kernel/debug/ieee80211/phy0/ath10k/spectral_scan0 > samples

This feature is still experimental. Based on the original RFC patch of
Sven Eckelmann.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-04 09:07:54 +03:00
Michal Kazior
dc55e3074c ath10k: improve channel switching
In some cases during heavy tx vdev stop-start
would timeout on vdev synchronization causing
traffic to stall for a few seconds.

Instead of stop-starting use a dedicated vdev
restart command and down vdevs explicitly before
doing so.

This gets rid of the synchronization
warnings/timeouts and makes channel switching
smoother during traffic.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-08-02 09:11:22 +03:00
Michal Kazior
cf850d1d23 ath10k: don't advertise IBSS iftype for 10.x
The 10.x firmware does not support IBSS mode at
all. It can't beacon and it crashes when trying to
scan.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-25 11:15:50 +03:00
Michal Kazior
aa5b4fbcff ath10k: fix Rx aggregation reordering
Firmware doesn't perform Rx reordering so it is
left to the host driver to do that.

Use mac80211 to perform reordering instead of
re-inventing the wheel.

This fixes TCP throughput issues in some
environments.

Reported-by: Denton Gentry <denton.gentry@gmail.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-25 11:15:39 +03:00
Michal Kazior
c21c64d145 ath10k: workaround qos nullfunc bug
Apparently fw/hw generates a corrupted QoS Control
Field in Qos NullFunc frames. The only way to
workaround this is to downgrade frames to
NullFunc. This should be okay since powersave is
done by fw/hw and these frames are only used for
CQM purposes (e.g. from hostapd to check if
station is still connected).

This doesn't fix any user visible bug that I know
of. It just prevents from sending out funky frames
on the air.

Reported-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-22 18:54:04 +03:00
Michal Kazior
4b6045586f ath10k: simplify tx helpers
It always bugged me how tid is computed and stored
in a temporary var before written to the control
buffer. It was confusing and it made it difficult
to work with tx helpers.

While at it rename the qos workaround function as
it was misleading - it's not a workaround but
preparation for nwifi tx mode.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-07-22 18:53:52 +03:00
David Spinadel
c56ef67250 mac80211: support more than one band in scan request
Some drivers (such as iwlmvm) can handle multiple bands in a single
HW scan request. Add a HW flag to indicate that the driver support
this. To hold the required data, create a separate structure for
HW scan request that holds cfg scan request and data about
different parts of the scan IEs.

As this changes the mac80211 API, update all drivers using it to
use the correct new function type/argument.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-06-25 09:10:42 +02:00
Michal Kazior
7b161a7034 ath10k: dont configure bssid for ap mode
FW creates self-peer for AP internally.

This prevents ath10k from trying to create
explicit self-peer during hw recovery and thus
prevents a timeout and a warning during teardown:

  ath10k: removing stale peer $AP_BSSID from vdev_id 0

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:28:46 +03:00
Michal Kazior
911e6c0d8d ath10k: protect wep tx key setup
All configuration sequences should be protected
with conf_mutex to avoid concurrent/conflicting
requests.

This should make sure that wep tx key setup is not
performed while hw is restarted (at least).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:28:14 +03:00
Michal Kazior
bca7bafbe2 ath10k: drain tx before restarting hw
This makes sure no further tx requests are
submitted to HTT before driver teardown.

This should prevent invalid pointer/NULL
dereference on htt tx pool in ath10k_htt_tx() in
some cases of heavy traffic.

kvalo: remove the WARN_ON() if conf_mutex is held

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>
2014-05-27 12:27:59 +03:00
Michal Kazior
c5058f5b82 ath10k: perform hw restart lazily
This reduces risk of races and prepares for more
hw restart fixes.

It also makes sense to perform teardown after
mac80211 starts its restart routine as it
guarantees it has stopped itself by then
(including tx queues).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:27:33 +03:00
Michal Kazior
ae254433a8 ath10k: clean up start() callback
This fixes failpath when override AC pdev param
setup fails and makes other pdev params setting
fail as well.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-27 12:27:24 +03:00
Luciano Coelho
aecdc89fb4 ath9k/ath10k: remove unnecessary channel_switch_beacon callbacks
The channel_switch_beacon callback is optional, so it doesn't have to
be defined if it's not going to do anything useful with it.  Both
ath9k and ath10k define the callback and just returns.  This commit
removes them.

Cc: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-23 11:31:45 +03:00
Ben Greear
46acf7bb9b ath10k: support get/set antenna configurations.
Verified that target's tx/rx chain register is set appropriately,
and that the tx rate goes down as number of chains
decrease, but I did not actually try to verify antenna
ceased to transmit when disabled.

kvalo: move ar->supp_*_chainmask initialisation to ath10k_mac_register()

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-22 19:55:09 +03:00
Marek Kwaczynski
eeab266c0f ath10k: fix pmf for action frames
Fix sending and receiveing protected managment frames.
Lack of protected flag for received protected action frames
causes report these frames as unprotected robust action frames.
If the driver in AP mode sent frame with protected flag and
CCMP header using IEEE80211_KEY_FLAG_SW_MGMT_TX flag,
the FW encrypted frames once again. From user side all
received SA Query Requests and Responses were skipped and
all protected action frames were sent as malformed packets.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-05-16 16:53:07 +03:00
Kalle Valo
e21353576d Merge remote-tracking branch 'wireless-next/master' into ath-next 2014-05-14 16:20:08 +03:00
John W. Linville
f6595444c1 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Conflicts:
	net/mac80211/chan.c
2014-04-30 12:04:27 -04:00
Michal Kazior
d9bc4b9b69 ath10k: fix firmware recovery with ap interface
Beacon data wasn't properly cleared during early
phase of recovery. This in turn caused firmware to
crash because the beacon data was submitted before
vdevs were fully re-configured. Ultimately the
device was considered wedged and nothing worked
until driver was reloaded.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-24 09:23:03 +03:00
Michal Kazior
ec6bc5523b ath10k: make sure to not leak beacon dma mapping
If for some reason mac80211 wouldn't stop
beaconing gracefully and just removed interface of
a running AP/IBSS interface it was possible to
leak pending beacon DMA mapping. It's very
unlikely but better safe than sorry.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-24 09:22:29 +03:00
Michal Kazior
d650097bfa ath10k: refactor radar detection code
If 20MHz CAC completed successfully then
subsequent CAC with wider bandwidth (40Mhz, 80Mhz)
with identical control frequency did not start
monitor vdev making it impossible to detect any
radar pulses during intended CAC.

It also was incorrect to assume ath10k_config() will
be called after CAC is finished. Theoretically for
non-HT channels nothing changes between CAC and
start_ap() (albeit in practice this can be
different). The incorrect assumption led to CAC
not being stopped on non-HT chandefs leading to
all Rx being drooped making it impossible for
clients to associate.

While at it clean up the code a bit.

kvalo: separate WARN_ON() from the if statement

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-11 08:35:25 +03:00
Michal Kazior
72654fa7b5 ath10k: reorder functions
This is done to avoid forward declarations with
upcomming patches.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-11 08:23:25 +03:00
Emmanuel Grumbach
77be2c54c5 mac80211: add vif to flush call
This will allow the low level driver to make decision based
on the vif such as queues etc...
Since the vif might be NULL, we can't add it to the tracing
functions.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[fix staging rtl8821ae driver]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-04-09 10:55:29 +02:00
Michal Kazior
1bbc09752d ath10k: refactor monitor code
It was possible to create/delete/start/stop
monitor vdev from a few places that were not
exclusively protected against each other. This
resulted in monitor vdev being stopped/removed by
one call origin while another one was expecting it
to continue running.

For example if CAC was started and interface's
promiscuous mode was toggled monitor vdev was
removed from the driver meaning no radar would be
detected. In additional a warning would be printed
upon CAC completion complaining it tried to stop
non-running monitor vdev.

The patch simplifies monitor code by removing
IEEE80211_HW_WANT_MONITOR_VIF (which wasn't really
ever needed) and improves state tracking. It also
unifies prints.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-04-08 09:55:30 +03:00
Kalle Valo
be6546fcc2 ath10k: unify warning messages in mac.c
Currently there are different styles used for warning messages, unify them to
look similar. The style basically is:

1) start with a verb (if possible)

2) lower case letters

3) use plain english as much as possible

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-28 09:41:03 +02:00
Marek Puzyniak
821af6ae26 ath10k: update regulatory domain settings for 10.x firmware
Regulatory domain settings for firmware 10.x has more options
than main firmware, so handle regulatory domain setup separately
for both supported firmwares. Fill in additional dfs domain
parameter according to current regulatory.
This patch does not solve any known bug. Not handled parameter
for firmware 10.x was found during code review.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-24 10:25:46 +02:00
Marek Kwaczynski
e81bd10482 ath10k: add recalc RTS/CTS protection method
Add recalculation of RTS/CTS protection when one or more legacy
stations are connected to ath10k. In this case enable RTS/CTS
protection and set sw retry profile are needed in the FW.
Without this change legacy station is starved and has very low
throughput.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-13 07:14:28 +02:00
Chun-Yeow Yeoh
44d6fa90a8 ath10k: allow the supported rate change by reassociate peer
IBSS mode requires the changing of supported rate. Do this
by reassociate the peer. The investigation shows that if move
from legacy to HT, the rate control won't work after changing
the supported rate. But once changing the supported rate to HT,
user can assign the TxRate in HT mode.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-11 12:18:39 +02:00
Ben Greear
69244e5656 ath10k: add vdev-id, return code to error codes
When using multiple vdevs (stations, aps, etc), it is
nice to be able to associate log messages with specific
interfaces.  So, add vdev-id to most logging messages.
Add return code as well, where it was missing.

kvalo: unify some of the messages to follow the same style

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-03-03 17:38:46 +02:00
Michal Kazior
767d34fc67 ath10k: remove DMA mapping wrappers
There's no real benefit from using them. DMA-API
already provides debugging. Some skbuffs are
already mapped directly with DMA-API since wrapper
arguments were insufficient and extending them
would be pointless.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-28 11:58:38 +02:00
Janusz Dziedzic
9f81f72556 ath10k: bitrate_mask add force_sgi support
Add force SGI support.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-27 18:40:37 +02:00
Janusz Dziedzic
2f0f112111 ath10k: enable spectrum management support
Indicate spectrum management support in hardware
flags, while we already handle power set
(IEEE80211_CONF_CHANGE_POWER) in the ath10k driver.
This enable 802.11h support for station mode.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-27 18:39:05 +02:00
Michal Kazior
76f900244f ath10k: fix sta_rc_update for non-ap iftype
The arsta structure wasn't initialized for
non-ap interfaces. This should fix related
warnings/crashes.

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>
2014-02-26 18:39:12 +02:00
Ben Greear
9ba4c787aa ath10k: add more details to some debug messages
Makes it easier to determine why some failures
happened.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-26 18:36:01 +02:00
Chun-Yeow Yeoh
26ebbccfb7 ath10k: implement drv_get_tsf for ibss merging
Implement the get TSF by simply returning 0 so that IBSS
merging is happening. Otherwise, IBSS nodes that have similar
SSID naming won't merge. This is simply fooling the mac80211
that the TSF in the received beacon is higher than the local TSF.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-26 18:30:57 +02:00
Michal Kazior
9797febc4c ath10k: implement sta_rc_update()
This allows dynamic changes of bandwidth/nss/smps,
e.g. via ht/vht operation mode change
notification.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-15 08:49:02 +02:00
Michal Kazior
90046f509d ath10k: fix SMPS support
Firmware ignores SMPS flags in peer assoc command.

For SMPS to work it is necessary to set peer
parameter after peer assoc command so that tx
chainmask is setup properly.

This should fix packet loss and improve throughput
with stations that have SMPS enabled upon
association.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-15 08:47:36 +02:00
Kalle Valo
75459e3338 ath10k: release conf_mutex if vdev_start() fails
I modified Michal's commit c930f744bd ("ath10k: implement channel switching") to return
when vdev_start() fails, but forgot to release conf_mutex.

Found by coccinelle:

>> drivers/net/wireless/ath/ath10k/mac.c:2745:5-11: preceding lock on line 2663

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-14 13:20:45 +02:00
Kalle Valo
ef8c00174a ath: remove camel case from struct reg_dmn_pair_mapping
Fixes a checkpatch warning in ath10k:

drivers/net/wireless/ath/ath10k/mac.c:1636: WARNING: Avoid CamelCase: <regpair->regDmnEnum>

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-14 13:20:32 +02:00
Bartosz Markowski
fd71f80737 ath10k: AP: handle HT station which does not have HT RX MCS
This is a workaround for HT-enabled STAs which break the spec
and have no HT capabilities RX mask (no HT RX MCS map).

As per spec, in section 20.3.5 Modulation and coding scheme (MCS),
MCS 0 through 7 are mandatory in 20MHz with 800 ns GI at all STAs.

Firmware asserts if such situation occurs.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-13 17:46:06 +02:00
Marek Puzyniak
00f5482bcd ath10k: suspend hardware before reset
In case of warm reset target need to be suspended.
Suspend function is extented to handle both cases
with disabling interrupts and without disabling interrupts.
Warm target reset requires suspend with all interrupts
disabled.

This patch depends on
ath10k: fix device initialization routine

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-13 17:24:17 +02:00
Marek Puzyniak
9042e17df8 ath10k: refactor suspend/resume functions
Suspend/resume callbacks are not protected by configuration mutex
so adding such protection. Also in order to simplify implemetation
of suspend function wait queue is replaced by completion.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-13 17:24:01 +02:00
Marek Kwaczynski
36786024df ath10k: Set proper nss value for the peer
It was found during testing the nss calculation does not
cover all corner cases. Station could request eq. only MCS8
and MCS9 (nss=2 specific). Next num_rates=2 so the driver
sets nss=(max((2+7)/8, 1))=1. Which is wrong. The in-driver
calculation was introduced prior (commit ddcc347b70
mac80211: fix rx_nss calculation for drivers with hw rc).
Since it's fixed, use mac80211 provided value from now.
End user will experience lower throuhputs than expected
if the nss is wrongly calculated.

Signed-off-by: Marek Kwaczynski <marek.kwaczynski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-02-13 16:48:46 +02:00
Marek Puzyniak
ab6258edb4 ath10k: configure access category for arp
ARP frames exchange does not work properly for UAPSD enabled AP.
ARP requests which arrives with access category 0 are processed
by network stack and send back with access category 0. FW changes
access category to 6. This is causing problems when UAPSD associated
STA is sleeping after has sent ARP request. Configure ARP access
category in FW to best effort (0) solves this problem. ARP frames
will be send with access category 0.

Simplify arp ac override functionality by removing redundant entry in
pdev param maping table. There should be only one entry in pdev param
map but enum has different name for different FW.

kvalo: change the warning message

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-30 10:12:22 +02:00
Michal Kazior
c60bdd8334 ath10k: properly return err from start()
If recovery failed ath10k returned 0 (success) and
mac80211 continued to call other driver callbacks.
This caused null dereference.

This is how the failure looked like:

ath10k: ctl_resp never came in (-110)
ath10k: failed to connect to HTC: -110
ath10k: could not init core (-110)
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa0b355c1>] ath10k_ce_send+0x1d/0x15d [ath10k_pci]
PGD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: ath10k_pci ath10k_core ath5k ath9k ath9k_common ath9k_hw ath mac80211 cfg80211 nf_nat_ipv4 ]
CPU: 1 PID: 36 Comm: kworker/1:1 Tainted: G        WC   3.13.0-rc8-wl-ath+ #8
Hardware name: To be filled by O.E.M. To be filled by O.E.M./HURONRIVER, BIOS 4.6.5 05/02/2012
Workqueue: events ieee80211_restart_work [mac80211]
task: ffff880215b521c0 ti: ffff880215e18000 task.ti: ffff880215e18000
RIP: 0010:[<ffffffffa0b355c1>]  [<ffffffffa0b355c1>] ath10k_ce_send+0x1d/0x15d [ath10k_pci]
RSP: 0018:ffff880215e19af8  EFLAGS: 00010292
RAX: ffff880215e19b10 RBX: 0000000000000000 RCX: 0000000000000018
RDX: 00000000d9ccf800 RSI: ffff8800c965ad00 RDI: 0000000000000000
RBP: ffff880215e19b58 R08: 0000000000000002 R09: 0000000000000000
R10: ffffffff812e1a23 R11: 0000000000000292 R12: 0000000000000018
R13: 0000000000000000 R14: 0000000000000002 R15: ffff88021562d700
FS:  0000000000000000(0000) GS:ffff88021fa80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000001a0d000 CR4: 00000000000407e0
Stack:
 d9ccf8000d47df40 ffffffffa0b367a0 ffff880215e19b10 0000000000000010
 ffff880215e19b68 ffff880215e19b28 0000000000000018 ffff8800c965ad00
 0000000000000018 0000000000000000 0000000000000002 ffff88021562d700
Call Trace:
 [<ffffffffa0b3251d>] ath10k_pci_hif_send_head+0xa7/0xcb [ath10k_pci]
 [<ffffffffa0b16cbe>] ath10k_htc_send+0x23d/0x2d0 [ath10k_core]
 [<ffffffffa0b1a169>] ath10k_wmi_cmd_send_nowait+0x5d/0x85 [ath10k_core]
 [<ffffffffa0b1aaef>] ath10k_wmi_cmd_send+0x62/0x115 [ath10k_core]
 [<ffffffff814e8abd>] ? __netdev_alloc_skb+0x4b/0x9b
 [<ffffffffa0b1c438>] ath10k_wmi_vdev_set_param+0x91/0xa3 [ath10k_core]
 [<ffffffffa0b0e0d5>] ath10k_mac_set_rts+0x3e/0x40 [ath10k_core]
 [<ffffffffa0b0e1d0>] ath10k_set_frag_threshold+0x5e/0x9c [ath10k_core]
 [<ffffffffa09d60eb>] ieee80211_reconfig+0x12a/0x7b3 [mac80211]
 [<ffffffff815a8069>] ? mutex_unlock+0x9/0xb
 [<ffffffffa09b3a40>] ieee80211_restart_work+0x5e/0x68 [mac80211]
 [<ffffffff810c01d0>] process_one_work+0x1d7/0x2fc
 [<ffffffff810c0166>] ? process_one_work+0x16d/0x2fc
 [<ffffffff810c06c8>] worker_thread+0x12e/0x1fb
 [<ffffffff810c059a>] ? rescuer_thread+0x27b/0x27b
 [<ffffffff810c5aee>] kthread+0xb5/0xbd
 [<ffffffff815a9220>] ? _raw_spin_unlock_irq+0x28/0x42
 [<ffffffff810c5a39>] ? __kthread_parkme+0x5c/0x5c
 [<ffffffff815ae04c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810c5a39>] ? __kthread_parkme+0x5c/0x5c
Code: df ff d0 48 83 c4 18 5b 41 5c 41 5d 5d c3 55 48 89 e5 41 57 41 56 45 89 c6 41 55 41 54 41 89 cc 53 48 89
RIP  [<ffffffffa0b355c1>] ath10k_ce_send+0x1d/0x15d [ath10k_pci]
 RSP <ffff880215e19af8>
CR2: 0000000000000000

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>
2014-01-30 10:09:24 +02:00
Michal Kazior
748afc4735 ath10k: implement and use new beacon method
Until now ath10k used a copy-by-value beacon
submission.

The new method passes a DMA address via WMI
command only. This command contains additional
metadata that fixes AP behaviour with regard
to powersave buffering.

This also fixes strange bug when multicast traffic
would freeze TX indefinitely.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-24 10:23:37 +02:00
Michal Kazior
c2df44b39b ath10k: implement AP CSA
Most channel switching logic has been implemented
already so this patch is pretty small. The patch
makes use of mac80211's vif->csa_active for AP CSA
handling.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-24 10:23:06 +02:00
Michal Kazior
c930f744bd ath10k: implement channel switching
Until now channel change wasn't propagating to FW
directly because operational channel is abstracted
by VDEVs and it wasn't really necessary since
ath10k implements hwscan and hwroc.

This effectively fixes STA CSA and allows for
future AP-like CSA as well.

kvalo: change error handling in ath10k_bss_info_changed()

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-24 10:22:19 +02:00
Janusz Dziedzic
d3d3ff42d9 ath10k: AP mode, set UAPSD params correctly
ath10k handles UAPSD completly in the firmware.
When works in AP mode we have to configure
UAPSD params for each station. Without this
patch we configure UAPSD params before we
send peer assoc command to the FW, which was
wrong. Next FW didn't know what should be trigger
frame, couse UAPSD didn't work correctly in AP mode.
To configure UAPSD params correctly we have to
send them after peer assoc command.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-23 14:55:06 +02:00
Kalle Valo
5a13e76eca ath10k: enable firmware STA quick kickout
Firmware has a feature to track if the associated STA is not acking the frames.
When that happens, the firmware sends WMI_PEER_STA_KICKOUT_EVENTID event to the
host. Enable that to faster detect when a STA has left BSS without sending a
deauth frame.

Also set huge keepalive timeouts to avoid using the keepalive functionality in
the firmware.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-23 14:54:03 +02:00
John W. Linville
f13352519e Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2014-01-13 14:40:59 -05:00
Janusz Dziedzic
51ab1a0a09 ath10k: add set_bitrate_mask callback
Add set_bitrate_mask callback. Currently
ath10k HW is limited to handle only single
fixed rate setting or limit number of used
spatial streams.

Example:
iw wlanX set bitrates legacy-5 ht-mcs-5 vht-mcs-5 2:9
will setup VHT, nss=2, mcs=9

iw wlanX set bitrates legacy-5 18 ht-mcs-5 vht-mcs-5
will setup legacy, 18Mbps

iw wlanX set bitrates legacy-5 ht-mcs-5 3 vht-mcs-5
will setup HT, nss=1, mcs=3

iw wlanX set bitrate legacy-5 ht-mcs-5 vht-mcs-5 1:0-9
will setup nss=1

iw wlanX set bitrate legacy-5 ht-mcs-5 vht-mcs-5 1:0-9 2:0-9
will setup nss=2

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-10 11:54:49 +02:00
Bartosz Markowski
0e759f363e ath10k: track number of existing peers
To not exceed number of allowed clients (AP mode), make sure to
check how many of them are already on the peers list.

10.X firmware support up to 127 peers, non-AP centric firmwares 16.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-10 11:46:47 +02:00
Marek Puzyniak
cdf074099b ath10k: disable STA kickout in FW
Currently ath10k is not using STA KICKOUT firmware functionality.
In order to avoid unwanted WMI_PEER_STA_KICKOUT_EVENT event this functionality
should be disabled when not used.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2014-01-10 11:43:47 +02:00
Johannes Berg
685328b296 mac80211: remove channel_change_time
This value is no longer used by mac80211, and practically no
driver ever set it to a correct value anyway, so remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-01-07 23:16:39 +01:00
Bartosz Markowski
d354181f4d ath10k: introduce NO_P2P fw feature flag
Not each ath10k FW track supports P2P (10.X for instance does not)
This new firmware feature flag allows to turn off P2P interface type.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-12-16 16:03:25 +02:00
Bartosz Markowski
f259509baa ath10k: split the if_limits and if_comb
Split the interface limits and inteface combination,
to reflect the 10.X capabilites (no P2P, no STA and 8 VAP).

kvalo: reverse order of ATH10K_FW_FEATURE_WMI_10X test, fix
checkpath warnings

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-12-16 16:00:45 +02:00
John W. Linville
145babc68e Merge tag 'for-linville-20131203' of git://github.com/kvalo/ath
Conflicts:
	drivers/net/wireless/ath/ath10k/htc.c
	drivers/net/wireless/ath/ath10k/mac.c
2013-12-09 15:30:27 -05:00
John W. Linville
4b074b0762 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next 2013-12-02 14:25:38 -05:00
Michal Kazior
cfb27d29b6 ath10k: fix multi BSSID with WPA on FW 10.1
FW 10.1 seems to require the default key index to
be updated to point to group key after it is
installed. Otherwise Txed frames are corrupted.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-12-02 18:51:13 +02:00
Luis R. Rodriguez
8fe02e167e cfg80211: consolidate passive-scan and no-ibss flags
These two flags are used for the same purpose, just
combine them into a no-ir flag to annotate no initiating
radiation is allowed.

Old userspace sending either flag will have it treated as
the no-ir flag. To be considerate to older userspace we
also send both the no-ir flag and the old no-ibss flags.
Newer userspace will have to be aware of older kernels.

Update all places in the tree using these flags with the
following semantic patch:

@@
@@
-NL80211_RRF_PASSIVE_SCAN
+NL80211_RRF_NO_IR
@@
@@
-NL80211_RRF_NO_IBSS
+NL80211_RRF_NO_IR
@@
@@
-IEEE80211_CHAN_PASSIVE_SCAN
+IEEE80211_CHAN_NO_IR
@@
@@
-IEEE80211_CHAN_NO_IBSS
+IEEE80211_CHAN_NO_IR
@@
@@
-NL80211_RRF_NO_IR | NL80211_RRF_NO_IR
+NL80211_RRF_NO_IR
@@
@@
-IEEE80211_CHAN_NO_IR | IEEE80211_CHAN_NO_IR
+IEEE80211_CHAN_NO_IR
@@
@@
-(NL80211_RRF_NO_IR)
+NL80211_RRF_NO_IR
@@
@@
-(IEEE80211_CHAN_NO_IR)
+IEEE80211_CHAN_NO_IR

Along with some hand-optimisations in documentation, to
remove duplicates and to fix some indentation.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[do all the driver updates in one go]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-11-25 20:49:35 +01:00
Marek Puzyniak
e8a50f8ba4 ath10k: introduce DFS implementation
Configure interface combination for AP running on channels
where radar detection is required. It allows only one type
of interface - AP on DFS channel and limits number of AP
interfaces to 8. Setup WMI channel flags accordingly to mac
channel configuration. CAC based on additional monitor vdev
is started if required for current channel.

kvalo: dropped ATH10K_DFS_CERTIFIED config option as this
the DFS still depends on few mac80211 and cfg80211 patches
which are on mac80211-next.git right now. The config option
will be added later once all dependencies are available.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-11-20 09:59:47 +02:00
Janusz Dziedzic
9702c68608 ath10k: add phyerr/dfs handling
Handle phyerr, dfs event, radar_report and fft_report.
Add also debugfs dfs_simulate_radar and dfs_stats files.
Use ath dfs pattern detector.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-11-20 09:59:41 +02:00
Michal Kazior
c4dd0d01da ath10k: allow dynamic bandwidth in hw rate control
Frames were never retransmitted with
different/lower bandwidths, e.g. only 80MHz
bandwidth was used when dealing with a VHT80
peer.

Allow HW rate control to try out different
bandwidths when retransmitting. This increases
robustness.

Also, document the parameter properly.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-11-15 10:58:01 +02:00
Wolfram Sang
16735d022f tree-wide: use reinit_completion instead of INIT_COMPLETION
Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.

[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-11-15 09:32:21 +09:00
Ben Greear
479398b070 ath10k: add logging to better determine some VIF/STA creation failures
Not all errors were properly notified, fix that.

kvalo: use ath10k_warn() for all messages, cosmetic changes to some of the messages

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-11-12 19:42:48 +02:00