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path: root/drivers/net/wireless/ath/ath9k/main.c (follow)
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2014-09-09ath9k: Fix RX filters in channel contextsSujith Manoharan1-1/+4
Maintain the RX filter on a per-channel-context basis and not globally. Not doing so was resulting in incorrect filter calculation. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09ath9k: Fix ath_startrecv()Sujith Manoharan1-7/+1
Since ath_startrecv() doesn't return an error value, cleanup the callsites. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09ath9k: Fix RX filter calculationSujith Manoharan1-1/+2
If multiple channel contexts are active, then the opmode can be different in each context. Since the RX filter is calculated in ath_startrecv() before switching to the new opmode, the wrong filters are chosen. Fix this by calling ath9k_calculate_summary_state() before the RX module is started. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09ath9k: Fix panic when adding an AP interfaceSujith Manoharan1-3/+5
If a station interface is already assigned to a context and is active and a second interface of type AP is added, then beaconing on the new interface has to be begin only after the BSS_CHANGED_BEACON_ENABLED flag is sent by mac80211 to the driver. But, since we issue ATH_CHANCTX_EVENT_ENABLE_MULTICHANNEL as soon as a new channel context is added, a switch occurs almost immediately before BSS_CHANGED_BEACON_ENABLED is received. When a HW reset is done for the new context, beacons are enabled for the interface since "enable_beacon" in the BSS config maintained in mac80211 is true - but the driver hasn't been notified yet. This causes a panic, since the beacon interval is zero for this interface and ath9k_cmn_beacon_config_ap() doesn't have a safety check. Fix this panic by checking if the beacon params has been cached for this context and use the "enable_beacon" flag maintained locally in the driver. Also, recalculate the summary data after the beacon params have been cached when BSS_CHANGED_BEACON_ENABLED is received. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-09ath9k: Fix beacons for managed modeSujith Manoharan1-1/+1
If the current opmode is managed, the ATH_OP_BEACONS flag needs to be set only when there is a primary station interface and it is associated/active. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-09-05mac80211: extend set_coverage_class signatureLorenzo Bianconi1-1/+2
Extend mac80211 set_coverage_class API in order to enable ACK timeout estimation algorithm (dynack) passing coverage class equals to -1 to lower drivers. Synchronize set_coverage_class routine signature with mac80211 function pointer for p54, ath9k, ath9k_htc and ath5k drivers. Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2014-08-28ath9k: Add more debug statements for channel contextSujith Manoharan1-0/+3
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Disable fastcc for channel context modeSujith Manoharan1-0/+3
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Fix channel context creationSujith Manoharan1-0/+2
If a new context is being added in addition to the current one, then send the ASSIGN event to abort a running scan since the addition of a context is usually followed by VIF assignment and further operations. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Fix 'offchannel' in ath_softcSujith Manoharan1-0/+2
Finally move the 'offchannel' instance in ath_softc inside a CONFIG_ATH9K_CHANNEL_CONTEXT cage. The offchannel usage in ath9k_calculate_iter_data() is closed off with an ifdef for now, since the state/opmode calculation is common for both the channel context mode and the normal mode. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Fix function argument typeSujith Manoharan1-2/+2
ath9k_vif_iter() was earlier used as an iterator routine when calling a mac80211 utility. This is no longer the case and hence we can mention the argument type explicitly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Add ath9k_chanctx_wake_queuesSujith Manoharan1-13/+2
Introduce a function that handles queues in channel context mode. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Fix channel context eventsSujith Manoharan1-2/+6
Check if channel context usage is enabled before calling ath_chanctx_event() from various parts of the driver. Also, make sure that ath_chanctx_event() is compiled only when CONFIG_ATH9K_CHANNEL_CONTEXT is enabled. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Cleanup mgd_prepare_tx callbackSujith Manoharan1-1/+31
Rename the callback from ath9k_chanctx_force_active() to ath9k_mgd_prepare_tx(). Also, move it to main.c and group it with the other callbacks. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Add a routine to tear down channel contextsSujith Manoharan1-1/+2
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Isolate ath9k_use_chanctx module parameterSujith Manoharan1-5/+9
This patch ensures that the module parameter "use_chanctx" is visible only when CONFIG_ATH9K_CHANNEL_CONTEXT is selected. Also register the channel context callbacks with mac80211 only when it is explicitly enabled and compile them out of the driver when CONFIG_ATH9K_CHANNEL_CONTEXT is not selected. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Isolate P2P powersave routinesSujith Manoharan1-15/+3
Use CONFIG_ATH9K_CHANNEL_CONTEXT to conditionally compile P2P-PS code. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Move P2P functions to channel.cSujith Manoharan1-87/+0
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Add debug informationSujith Manoharan1-11/+62
Add a few statements to debug channel context operation. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-08-28ath9k: Move channel operations to channel.cSujith Manoharan1-202/+0
This reduces clutter in main.c Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-07-01ath9k: Cache beacon config after associationRajkumar Manoharan1-1/+2
The beacon configurations are not cached properly after the station associates with AP. Not handling BEACON_INFO, is failing to update dtim period and also it is causing below warning message. WARNING: CPU: 1 PID: 0 at drivers/net/wireless/ath/ath9k/recv.c:548 ath_rx_tasklet+0xc89/0xca0 [ath9k]() Call Trace: [<c14669c9>] dump_stack+0x48/0x69 [<c104f1a2>] warn_slowpath_common+0x82/0xa0 [<fd38c2f9>] ? ath_rx_tasklet+0xc89/0xca0 [ath9k] [<fd38c2f9>] ? ath_rx_tasklet+0xc89/0xca0 [ath9k] Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville1-1/+2
2014-06-20ath9k: Fix build error in ath_reset_internalRajkumar Manoharan1-5/+3
drivers/net/wireless/ath/ath9k/main.c:299 ath_reset_internal() error: we previously assumed 'hchan' could be null (see line 293) Cc: Felix Fietkau <nbd@openwrt.org> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: use separate HW queue for each channel contextRajkumar Manoharan1-2/+46
Use seperate tx queue for each AC in each channel context and expose these information to mac80211 to avoid stopping one channel context leads to stopping the entire traffic for that AC even on other contexts. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Add recovery mechanism for hw TSF timerFelix Fietkau1-0/+1
Configure the TSF based hardware timer for a channel switch. Also set up backup software timer, in case the gen timer fails. This could be caused by a hardware reset. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Add multi-channel scheduling supportFelix Fietkau1-0/+3
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Implement mgd_prepare_txFelix Fietkau1-0/+1
Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Store current offchannel durationRajkumar Manoharan1-9/+19
Update current offchannel duration during scan or roc request. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: switch channel context for beaconingFelix Fietkau1-1/+8
Add a basic state machine for switch channel context for beacon transmission. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Summarize hw state per channel contextRajkumar Manoharan1-137/+138
Group and set hw state (opmode, primary_sta, beacon conf) per channel context instead of whole list of vifs. This would allow each channel context to run in different mode (STA/AP). Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: save tsf in channel contextFelix Fietkau1-0/+10
Save TSF in channel context for multiple operating channels. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Move caldata into channel contextFelix Fietkau1-1/+1
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Fetch appropriate operating channel contextRajkumar Manoharan1-18/+19
Retrieve appropriate operating channel context while switching between operating and off channels. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Implement channel context opsFelix Fietkau1-11/+93
Add channel context operations (add, remove, change, assign and unassign) to enable support for multiple channels. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Implement remain-on-channal supportFelix Fietkau1-14/+112
Add remain on channel support in order to enable multi-channel concurrency. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Implement hw_scan supportFelix Fietkau1-0/+187
Implement hw_scan support for enabling multi-channel cuncurrency. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: send powersave frame on channel switchFelix Fietkau1-0/+6
While leaving from or entering to active channel context, send out nullfunc frame to inform to the AP about the presence of station. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Add channel context worker threadFelix Fietkau1-11/+18
The channel context worker is used to switch to next requested channel context. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Move acq to channel contextFelix Fietkau1-11/+14
Add support to maintain per-channel ACs list. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Move txpower limit to channel contextFelix Fietkau1-3/+3
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-06-19ath9k: Add channel context structureFelix Fietkau1-99/+12
The channel context structure is defined to enable multi-channel concurrency support. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-30Merge branch 'for-linville' of git://github.com/kvalo/athJohn W. Linville1-9/+0
2014-05-29ath9k: Fix deadlock while updating p2p beacon timerRajkumar Manoharan1-10/+8
pm_lock is taken twice while syncing HW TSF of p2p vif. Fix this by taking the lock at caller side. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-23ath9k/ath10k: remove unnecessary channel_switch_beacon callbacksLuciano Coelho1-9/+0
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>
2014-05-22ath9k: Handle multiple keys while setting tx filtersRajkumar Manoharan1-11/+44
The keycache index is used to abort transmission for given station when it goes to sleep state. But the commit "ath9k_hw: Abort transmission for sleeping station" is not handling multi-key station. Fix that. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-05-19ath9k_hw: Abort transmission for sleeping stationRajkumar Manoharan1-0/+8
The data transmission to the power save station should be aborted immediately, whenever the station informs sleep state. Right now the frames queued into into hardware are being transmitted until the hardware detects the power save station based excessive retries of the data frames due to unacknowlegdement. Then remaining frames are returned with filetered status and might be retried later by driver or mac80211. Per WFA certification testing, AP should not send out more than two frames after processing nullfunc with PM bit set from associated station. To speed up tx filtering, the pending frames in hardware queues for given station will be aborted immediately via tx filter registers. This transmit filters can be ignored if the descriptor is having invalid destination index or clear destination mask set. Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-30Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville1-1/+2
Conflicts: net/mac80211/chan.c
2014-04-22ath9k: implement p2p client powersave supportFelix Fietkau1-0/+106
Use generic TSF timers to trigger powersave state changes based information from the P2P NoA attribute. Opportunistic Powersave is not handled, because the driver does not support powersave at the moment. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2014-04-09mac80211: add vif to flush callEmmanuel Grumbach1-1/+2
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>
2014-03-17ath9k: move sc_flags to ath_commonOleksij Rempel1-20/+25
we will need it for ath9k_htc, may be other drivers too Signed-off-by: Oleksij Rempel <linux@rempel-privat.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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