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2010-02-11iwlwifi: reset card during probeReinette Chatre
To ensure that card is in a sane state during probe we add a reset call. This change was prompted by users of kdump who was not able to bring up the wireless driver in the kdump kernel. The problem here was that the primary kernel, which is not running at the time, left the wireless card up and running. When the kdump kernel starts it is thus possible to immediately receive interrupts from firmware after registering interrupt, but without being ready to deal with interrupts from firmware yet. Reported-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: fix scan raceReinette Chatre
There is a problem if an "internal short scan" is in progress when a mac80211 requested scan arrives. If this new scan request arrives within the "next_scan_jiffies" period then driver will immediately return success and complete the scan. The problem here is that the scan has not been fully initialized at this time (is_internal_short_scan is still set to true because of the currently running scan), which results in the scan completion never to be sent to mac80211. At this time also, evan though the internal short scan is still running the state (is_internal_short_scan) will be set to false, so when the internal scan does complete then mac80211 will receive a scan completion. Fix this by checking right away if a scan is in progress when a scan request arrives from mac80211. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: cleanup return valuesAbhijeet Kolekar
Cleanup return values and removes unnecessary code. Signed-off-by: Abhijeet Kolekar <abhijeet.kolekar@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: remove unused op-code in PHY Calibration commandWey-Yi Guy
Number of calibration op-code are not used by driver, remove those from iwl-commands.h Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: check for aggregation frame and queueWey-Yi Guy
Error checking for aggregation frames should go into aggregation queue, if aggregation queue not available, use legacy queue instead. Also make sure the aggregation queue is available to activate, if driver and mac80211 is out-of-sync, try to disable the queue and sync-up with mac80211. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: add debug function to reset/reload radio/firmwareWey-Yi Guy
Adding function to force reset radio or reload firmware from debugfs. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: multiple force reset modeWey-Yi Guy
Provide the function to perform different type of uCode reset/reload operation. When uCode detect error and can not fix itself, this iwl_force_reset() function allow driver to perform the necessary reset/reload functions and help to bring uCode back to normal operation state. Currently only 2 type of force reset are available: - reset radio - reload firmware Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-11iwlwifi: clear all tx queues when firmware readyWey-Yi Guy
Reset and clear all the tx queues when finished downloading runtime uCode and ready to go into operation mode. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
2010-02-10mac80211: Deny TX BA session requests during disassociationSujith
In associated state, when bringing an interface down, existing BA sessions are torn down. When this is in progress, nothing prevents mac80211 from accepting another BA session start request. Use a new station flag to fix this. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-10Add Station and AdHoc mode support to libertas_tfDeepak Saxena
Add support for using the libertas_tf driver on a managed or ad-hoc network. Signed-off-by: Deepak Saxena <dsaxena@laptop.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-10ath5k: use correct packet type when transmittingBob Copeland
The hardware needs to know what type of frames are being sent in order to fill in various fields, for example the timestamp in probe responses (before this patch, it was always 0). Set it correctly when initializing the TX descriptor. Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-09ath9k: Enable IEEE80211_HW_REPORTS_TX_ACK_STATUS flag for ath9k.Vivek Natarajan
Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-09mac80211: Retry null data frame for power save.Vivek Natarajan
Even if the null data frame is not acked by the AP, mac80211 goes into power save. This might lead to loss of frames from the AP. Prevent this by restarting dynamic_ps_timer when ack is not received for null data frames. Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: Reset dynamic ps timer in Rx path.Vivek Natarajan
The current mac80211 implementation enables power save if there is no Tx traffic for a specific timeout. Hence, PS is triggered even if there is a continuous Rx only traffic(like UDP) going on. This makes the drivers to wait on the tim bit in the next beacon to awake which leads to redundant sleep-wake cycles. Fix this by restarting the dynamic ps timer on receiving every data packet. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> CC: stable@kernel.org Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: make rate_control_alloc staticAndres Salomon
rate_control_alloc is not used by anything outside of ieee80211_init_rate_ctrl_alg. Both are in rate.c; there's no reason to make rate_control_alloc visible outside of it. Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ath: fix WARN_ON with Polish (Poland) Contry codeChristian Lamparter
This patch fixes a WARN_ON which is triggered by Poland's country code. ath: EEPROM regdomain: 0x8268 ath: EEPROM indicates we should expect a country code ath: doing EEPROM country->regdmn map search ath: country maps to regdmn code: 0x37 ath: Country alpha2 being used: PL ath: Regpair used: 0x37 -----------[ cut here ]------------ WARNING: at drivers/net/wireless/ath/regd.c:155 ath_regd_init+0x30b Pid: 12661, comm: firmware/carl91 2.6.33-rc5-wl #18 Call Trace: [<>] ? warn_slowpath_common+0x76/0x8c [<>] ? ar9170_reg_notifier+0x0/0x2d [carl9170usb] [<>] ? ath_regd_init+0x30b/0x377 [ath] [<>] ? ar9170_register+0x3b3/0x3ca [carl9170usb] [...] ---[ end trace ]--- Note: Poland is just an example. But it is very likely that more country codes are affected. Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: remove get_tx_stats() driver opKalle Valo
get_tx_stats() driver operation is not currently used anywhere in mac80211 and there are no plans to use it in the not-so-near future. So it can go without anyone missing it. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08rt2x00: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Acked-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08p54: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. p54 uses struct ieee80211_tx_queue_stats also internally, so create a new identical struct p54_tx_queue_stats which the driver can use. Compile-tested only. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08iwlwifi: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Zhu Yi <yi.zhu@intel.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43legacy: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stefano Brivio <stefano.brivio@polimi.it> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Stefano Brivio <stefano.brivio@polimi.it> Cc: Michael Buesch <mb@bu3sch.de> Cc: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ath5k: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Nick Kossifidis <mickflemm@gmail.com> Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Acked-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ar9170: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Because ar9170 uses ieee80211_tx_queue_stats internally, create a new identical struct ar9170_tx_queue_stats which the driver can use. Compile-tested only. Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Tested-by: Christian Lamparter <chunkeey@googlemail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mwl8k: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. mwl8k used struct ieee80211_tx_queue_stats internally to track the queue lenght. Replace struct ieee80211_tx_queue_stats with a simple len field in struct mwl8k_tx_queue. Limit and count fields seemed to be unused. Compile-tested only. Cc: Lennert Buytenhek <buytenh@marvell.com> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08adm821: remove get_tx_stats() mac80211 opKalle Valo
get_tx_stats() will be removed from mac80211. Compile-tested only. Cc: Michael Wu <flamingice@sourmilk.net> Signed-off-by: Kalle Valo <kalle.valo@iki.fi> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ath9k: fix keycache leak in split tkip caseMing Lei
If split tkip key is used, ath_delete_key should delete rx key and rx mic key. This patch fixes the leak of hw keycache in the case. Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: fix deauth raceJohannes Berg
When userspace requests a deauth while the authentication work is pending in the auth (not probe) state, we do not properly abort the work and then things get confused. Fix that and also improve the checks here to include the correct virtual interface, just in case two virtual interfaces would ever try to connect to the same BSS. Also fix a bug -- need to use list_del_rcu instead of just list_del to free a work item. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08iwlwifi: Send broadcast probe request only when asked toSamuel Ortiz
When running directed active scans we currently end up sending both the SSID probe requests and an additional broadcast one. This is due to the fact that we always leave the probe request template SSID IE length to 0. Instead we should set it to the first SSID to scan, and fill the direct_scan array with the remaining SSIDs to scan for. This way we only send what we've been asked to: a broadcast probe request when no directed scan is requested, and directed probe requests otherwise. Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08iwlwifi: Add chain_noise support for 6050Ben Cahill
Existing iwl6050_ops->iwl6050_hcmd_utils structure had no pointers to chain noise functions (gain_computation and chain_noise_reset). As it turns out, by adding chain_noise_scale (see related patch), there is no need for separate chain noise function, so simply use iwl6000_ops->iwl5000_hcmd_utils, and remove those for 6050. Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08iwlwifi: Add chain noise scaling factorBen Cahill
6x50 device requires a different scaling factor for Rx gain values sent to device via PHY_CALIBRATION_CMD (CHAIN_NOISE_GAIN_CMD). Rather than create a new iwlXXXX_gain_computation() function, add new chain_noise_scale member to struct iwl_cfg, and keep using iwl5000_gain_computation(). Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: fix bss_conf.dtim_periodJohannes Berg
In AP mode, the only mode where the parameter is supposed to be valid, we never assign it! Fix that to allow drivers to avoid parsing the TIM IE for the value. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: Added a new debugfs file for reading channel_typeBenoit Papillault
This file helps debugging HT channels since it displays if we are on ht20 or ht40+/ht40- Signed-off-by: Benoit Papillault <benoit.papillault@free.fr> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08libertas: don't retry commandsHolger Schurig
Retrying commands seldomly works, most often the firmware is in a weird state anyway and needs the device to reset. So it's better to report the broken state back to user-space. Also rename command_timer_fn() into lbs_cmd_timeout_handler(), which better reflect it's usage. Signed-off-by: Holger Schurig <holgerschurig@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08wl1251: fix txop unitKalle Valo
mac80211 uses unit units of 32 usec with txop but wl1251_acx_ac_cfg() expects it to be usecs. This fortunately didn't cause any severe problems, only that firmware was using incorrect WMM settings. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: handle allocation fail in samples generationRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: load generated samplesRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: partly implement SPUR workaroundRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: save calibration for further restoreRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: prepare code for reapplying TX cal coeffsRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43: N-PHY: implement overriding RF control intcRafał Miłecki
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08libertas/if_spi: needs linux/semaphore.hRandy Dunlap
libertas/if_spi.c needs to #include linux/semaphore.h to fix build errors: drivers/net/wireless/libertas/if_spi.c:59: error: field 'spi_ready' has incomplete type drivers/net/wireless/libertas/if_spi.c:60: error: field 'spi_thread_terminated' has incomplete type drivers/net/wireless/libertas/if_spi.c:785: error: implicit declaration of function 'down_interruptible' drivers/net/wireless/libertas/if_spi.c:787: error: implicit declaration of function 'up' drivers/net/wireless/libertas/if_spi.c:834: error: implicit declaration of function 'down' drivers/net/wireless/libertas/if_spi.c:943: error: implicit declaration of function 'sema_init' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ssb: fix interrupt assignmentJochen Friedrich
Explicitely enable shared interrupt 2 for any core that didn't get a dedicated IRQ anymore (fallthrough case) and for EXTIF cores to make gpio interrupts work. Also remove a bogus comment. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08b43/b43legacy: Wake queues in wireless_core_startLarry Finger
If b43 or b43legacy are deauthenticated or disconnected, there is a possibility that a reconnection is tried with the queues stopped in mac80211. To prevent this, start the queues before setting STAT_INITIALIZED. In b43, a similar change has been in place (twice) in the wireless_core_init() routine. Remove the duplicate and add similar code to b43legacy. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Cc: Stable <stable@kernel.org> [2.6.32] Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: tear down all agg queues when restart/reconfig hwWey-Yi Guy
When there is a need to restart/reconfig hw, tear down all the aggregation queues and let the mac80211 and driver get in-sync to have the opportunity to re-establish the aggregation queues again. Need to wait until driver re-establish all the station information before tear down the aggregation queues, driver(at least iwlwifi driver) will reject the stop aggregation queue request if station is not ready. But also need to make sure the aggregation queues are tear down before waking up the queues, so mac80211 will not sending frames with aggregation bit set. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ath9k: Enable TIM timer interrupt only when needed.Senthil Balasubramanian
The TIM timer interrupt is enabled even before the ACK of nullqos is received which is unnecessary. Also clean up the CONF_PS part of config callback properly for better readability. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08ath9k: configure the beacon only if the STA is associatedSenthil Balasubramanian
beacons configuration SHOULD be done only if the STA is associated. Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: allow station add/remove to sleepJohannes Berg
Many drivers would like to sleep during station addition and removal, and currently have a high complexity there from not being able to. This introduces two new callbacks sta_add() and sta_remove() that drivers can implement instead of using sta_notify() and that can sleep, and the new sta_add() callback is also allowed to fail. The reason we didn't do this previously is that the IBSS code wants to insert stations from the RX path, which is a tasklet, so cannot sleep. This patch will keep the station allocation in that path, but moves adding the station to the driver out of line. Since the addition can now fail, we can have IBSS peer structs the driver rejected -- in that case we still talk to the station but never tell the driver about it in the control.sta pointer. If there will ever be a driver that has a low limit on the number of stations and that cannot talk to any stations that are not known to it, we need to do come up with a new strategy of handling larger IBSSs, maybe quicker expiry or rejecting peers. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08mac80211: don't probe if we have probe responseJohannes Berg
We can now easily determine whether we already have probe response information for the BSS we are asked to connect to, in which case there's little point in probing the BSS again. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-02-08wireless: update radiotap parserJohannes Berg
Upstream radiotap has adopted the namespace proposal David Young made and I then took care of, for which I had adapted the radiotap parser as a library outside the kernel. This brings the in-kernel parser up to speed. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>