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path: root/drivers/net/wireless/ath/ath9k/main.c
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* | ath9k: Cache BSS informationSujith Manoharan2014-09-26
| | | | | | | | | | | | | | | | | | | | | | | | Using the BSS information stored in mac80211 directly is racy in certain conditions. For example, in a MCC setup, if the scheduler is switching channels when a local deauth is issued, calculation of the opmode/bssid etc. is incorrect. To avoid this, store the bss params in the driver and use it. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: initialize ath_node linked listLorenzo Bianconi2014-09-16
| | | | | | | | | | | | | | | | Initialize neighbor linked list used by dynack to compute ACK timeout as the maximum STA ACK timeout Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: enable dynack using set_coverage_class codepathLorenzo Bianconi2014-09-16
| | | | | | | | | | | | | | | | | | Enable ACK timeout estimation algorithm if set_coverage_class routine has been called with negative coverage_class parameter. Dynack is automatically disabled setting valid value for coverage class Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix primary station configurationSujith Manoharan2014-09-15
| | | | | | | | | | | | | | | | Assign 'primary_sta' to the active primary station interface after iterating over the list of interfaces. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Remove useless opmode checkSujith Manoharan2014-09-15
| | | | | | | | | | | | | | | | The opmode is verified to be NL80211_IFTYPE_STATION before calling ath9k_set_assoc_state(). Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Set offchannel state properlySujith Manoharan2014-09-15
| | | | | | | | | | | | | | | | | | When switching offchannel, BSS related information in the HW has to be reset to default values. Add a routine to do this. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | Merge tag 'mac80211-next-for-john-2014-09-12' of ↵John W. Linville2014-09-15
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
| * | mac80211: extend set_coverage_class signatureLorenzo Bianconi2014-09-05
| |/ | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Use a subroutine to assign HW queuesSujith Manoharan2014-09-09
| | | | | | | | | | | | | | Reduces code duplication. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix interface accountingSujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | | | | | Currently, the interface count is maintained globally, but this causes problems in RX filter calculation. Make the interface count a per-channel-context variable to fix this. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix RX filters in channel contextsSujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Fix ath_startrecv()Sujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | 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>
* | ath9k: Fix RX filter calculationSujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Fix panic when adding an AP interfaceSujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Fix beacons for managed modeSujith Manoharan2014-09-09
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add more debug statements for channel contextSujith Manoharan2014-08-28
| | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Disable fastcc for channel context modeSujith Manoharan2014-08-28
| | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Fix channel context creationSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Fix 'offchannel' in ath_softcSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Fix function argument typeSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add ath9k_chanctx_wake_queuesSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | 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>
* | ath9k: Fix channel context eventsSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Cleanup mgd_prepare_tx callbackSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add a routine to tear down channel contextsSujith Manoharan2014-08-28
| | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Isolate ath9k_use_chanctx module parameterSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Isolate P2P powersave routinesSujith Manoharan2014-08-28
| | | | | | | | | | | | | | | | 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>
* | ath9k: Move P2P functions to channel.cSujith Manoharan2014-08-28
| | | | | | | | | | Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Add debug informationSujith Manoharan2014-08-28
| | | | | | | | | | | | | | 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>
* | ath9k: Move channel operations to channel.cSujith Manoharan2014-08-28
|/ | | | | | | 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>
* ath9k: Cache beacon config after associationRajkumar Manoharan2014-07-01
| | | | | | | | | | | | | | | | | 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>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville2014-06-25
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* | ath9k: Fix build error in ath_reset_internalRajkumar Manoharan2014-06-20
| | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: use separate HW queue for each channel contextRajkumar Manoharan2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add recovery mechanism for hw TSF timerFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add multi-channel scheduling supportFelix Fietkau2014-06-19
| | | | | | | | | | | | 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>
* | ath9k: Implement mgd_prepare_txFelix Fietkau2014-06-19
| | | | | | | | | | Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | ath9k: Store current offchannel durationRajkumar Manoharan2014-06-19
| | | | | | | | | | | | | | 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>
* | ath9k: switch channel context for beaconingFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Summarize hw state per channel contextRajkumar Manoharan2014-06-19
| | | | | | | | | | | | | | | | | | | | 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>
* | ath9k: save tsf in channel contextFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | 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>
* | ath9k: Move caldata into channel contextFelix Fietkau2014-06-19
| | | | | | | | | | | | 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>
* | ath9k: Fetch appropriate operating channel contextRajkumar Manoharan2014-06-19
| | | | | | | | | | | | | | | | 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>
* | ath9k: Implement channel context opsFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Implement remain-on-channal supportFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Implement hw_scan supportFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | 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>
* | ath9k: send powersave frame on channel switchFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Add channel context worker threadFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | | | 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>
* | ath9k: Move acq to channel contextFelix Fietkau2014-06-19
| | | | | | | | | | | | | | | | 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>
* | ath9k: Move txpower limit to channel contextFelix Fietkau2014-06-19
| | | | | | | | | | | | 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>
* | ath9k: Add channel context structureFelix Fietkau2014-06-19
|/ | | | | | | | | 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>
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-13 22:58:29 -0400