- 03 Jun, 2009 40 commits
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Johannes Berg authored
To be easier on drivers and users, have cfg80211 register an rfkill structure that drivers can access. When soft-killed, simply take down all interfaces; when hard-killed the driver needs to notify us and we will take down the interfaces after the fact. While rfkilled, interfaces cannot be set UP. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
John W. Linville <linville@tuxdriver.com>
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Johannes Berg authored
Sometimes it is necessary to know how the state is, and it is easier to query rfkill than keep track of it somewhere else, so add a function for that. This could later be expanded to return hard/soft block, but so far that isn't necessary. Signed-off-by:
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Johannes Berg authored
This patch introduces new cfg80211 API to set the TX power via cfg80211, puts the wext code into cfg80211 and updates mac80211 to use all that. The -ENETDOWN bits are a hack but will go away soon. Signed-off-by:
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Johannes Berg authored
The new code added by this patch will make rfkill create a misc character device /dev/rfkill that userspace can use to control rfkill soft blocks and get status of devices as well as events when the status changes. Using it is very simple -- when you open it you can read a number of times to get the initial state, and every further read blocks (you can poll) on getting the next event from the kernel. The same structure you read is also used when writing to it to change the soft block of a given device, all devices of a given type, or all devices. This also makes CONFIG_RFKILL_INPUT selectable again in order to be able to test without it present since its functionality can now be replaced by userspace entirely and distros and users may not want the input part of rfkill interfering with their userspace code. We will also write a userspace daemon to handle all that and consequently add the input code to the feature removal schedule. In order to have rfkilld support both kernels with and without CONFIG_RFKILL_INPUT (or new kernels after its eventual removal) we also add an ioctl (that only exists if rfkill-input is present) to disable rfkill-input. It is not very efficient, but at least gives the correct behaviour in all cases. Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
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Johannes Berg authored
This patch completely rewrites the rfkill core to address the following deficiencies: * all rfkill drivers need to implement polling where necessary rather than having one central implementation * updating the rfkill state cannot be done from arbitrary contexts, forcing drivers to use schedule_work and requiring lots of code * rfkill drivers need to keep track of soft/hard blocked internally -- the core should do this * the rfkill API has many unexpected quirks, for example being asymmetric wrt. alloc/free and register/unregister * rfkill can call back into a driver from within a function the driver called -- this is prone to deadlocks and generally should be avoided * rfkill-input pointlessly is a separate module * drivers need to #ifdef rfkill functions (unless they want to depend on or select RFKILL) -- rfkill should provide inlines that do nothing if it isn't compiled in * the rfkill structure is not opaque -- drivers need to initialise it correctly (lots of sanity checking code required) -- instead force drivers to pass the right variables to rfkill_alloc() * the documentation is hard to read because it always assumes the reader is completely clueless and contains way TOO MANY CAPS * the rfkill code needlessly uses a lot of locks and atomic operations in locked sections * fix LED trigger to actually change the LED when the radio state changes -- this wasn't done before Tested-by:
Alan Jenkins <alan-jenkins@tuffmail.co.uk> Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> [thinkpad] Signed-off-by:
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Bob Copeland authored
nl80211_michael_mic_failure can be called in atomic context but does a GFP_KERNEL allocation. Fixes the error below: [ 126.793225] BUG: sleeping function called from invalid context at mm/slab.c:3055 [ 126.793234] in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper [ 126.793241] 2 locks held by swapper/0: [ 126.793246] #0: (&sc->rxbuflock){+.-.+.}, at: [<f94e1b46>] ath5k_tasklet_rx+0x34/0x55e [ath5k] [ 126.793294] #1: (rcu_read_lock){.+.+.+}, at: [<f92872f3>] __ieee80211_rx+0x7e/0x563 [mac80211] [ 126.793342] Pid: 0, comm: swapper Not tainted 2.6.30-rc7-wl #124 [ 126.793347] Call Trace: [ 126.793361] [<c014499d>] ? __debug_show_held_locks+0x1e/0x20 [ 126.793380] [<c011e9a3>] __might_sleep+0x100/0x107 [ 126.793386] [<c018ea99>] kmem_cache_alloc+0x35/0x170 [ 126.793393] [<c02e8bb1>] ? __alloc_skb+0x2e/0x117 [ 126.793397] [<c014517d>] ? mark_held_locks+0x43/0x5b [ 126.793402] [<c02e8bb1>] __alloc_skb+0x2e/0x117 [ 126.793419] [<f851a836>] nl80211_michael_mic_failure+0x2a/0x1fa [cfg80211] [ 126.793425] [<c01453b8>] ? trace_hardirqs_on_caller+0xf6/0x130 [ 126.793430] [<c01453fd>] ? trace_hardirqs_on+0xb/0xd [ 126.793444] [<f851b2b8>] cfg80211_michael_mic_failure+0x30/0x38 [cfg80211] [ 126.793463] [<f928bf69>] mac80211_ev_michael_mic_failure+0xfd/0x108 [mac80211] [ 126.793480] [<f9279fbd>] ieee80211_rx_h_michael_mic_verify+0xd4/0x117 [mac80211] [ 126.793499] [<f9285ef3>] ieee80211_invoke_rx_handlers+0xdde/0x1963 [mac80211] [ 126.793505] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793511] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793516] [<c01445d7>] ? trace_hardirqs_off+0xb/0xd [ 126.793521] [<c0107152>] ? sched_clock+0x3f/0x64 [ 126.793526] [<c0146454>] ? __lock_acquire+0x62c/0x1271 [ 126.793545] [<f9286fbb>] __ieee80211_rx_handle_packet+0x543/0x564 [mac80211] [ 126.793564] [<f9287757>] __ieee80211_rx+0x4e2/0x563 [mac80211] [ 126.793577] [<f94e1ff6>] ath5k_tasklet_rx+0x4e4/0x55e [ath5k] [ 126.793583] [<c0102b54>] ? restore_nocheck_notrace+0x0/0xe [ 126.793589] [<c0129aa2>] tasklet_action+0x92/0xe5 [ 126.793594] [<c0129f22>] __do_softirq+0xb1/0x182 [ 126.793599] [<c012a023>] do_softirq+0x30/0x48 [ 126.793603] [<c012a19b>] irq_exit+0x3d/0x74 [ 126.793609] [<c0358016>] do_IRQ+0x76/0x8c [ 126.793613] [<c010312e>] common_interrupt+0x2e/0x34 [ 126.793618] [<c014007b>] ? timer_list_show+0x277/0x939 [ 126.793630] [<f88eb321>] ? acpi_idle_enter_bm+0x266/0x291 [processor] [ 126.793636] [<c02d00f6>] cpuidle_idle_call+0x6a/0x9c [ 126.793640] [<c0101cc8>] cpu_idle+0x53/0x87 [ 126.793645] [<c0344510>] rest_init+0x6c/0x6e [ 126.793651] [<c04dd74d>] start_kernel+0x286/0x28b [ 126.793656] [<c04dd037>] __init_begin+0x37/0x3c Signed-off-by:Bob Copeland <me@bobcopeland.com> Signed-off-by:
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Bing Zhao authored
This patch is to incorporate Dan Williams' comments for commit: "libertas: implement function init/shutdown commands for SD8688" 1. remove fn_init_required and fn_shutdown_required variables from lbs_private structure. If required, __lbs_cmd() will be called directly to send function init/shutdown command for SD8688 in if_sdio_probe() or if_sdio_remove() callback. 2. add global variable "user_rmmod" to distinguish between the module removal case and the card removal case. This flag will be checked in if_sdio_remove() against SD8688 card to determine whether or not the function shutdown command needs to be sent. 3. remove "card" from if_sdio_model structure as it cannot store card pointers for multiple cards. Besides, it's no longer needed to store the "card" pointer with changes #1 & #2 above. Signed-off-by:
Bing Zhao <bzhao@marvell.com> Acked-by:
Dan Williams <dcbw@redhat.com> Signed-off-by:
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Samuel Ortiz authored
We're going to remove the FIRMWARE_NAME_MAX definition in order to avoid any firmware name length restriction. This patch gets rid of the statically allocated p54usb firmware string, and replaces them with const char pointers. Signed-off-by:
Samuel Ortiz <sameo@linux.intel.com> Signed-off-by:
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Samuel Ortiz authored
iwmc3200wifi: trim down calibration firmware name The patch trims down iwmc3200wifi calibration firmware name from iwmc3200wifi-lmac-calib-sdio.bin to iwmc3200wifi-calib-sdio.bin. We can shorten the firmware name because all calibration is done by LMAC. Signed-off-by:
Samuel Ortiz <samuel.ortiz@intel.com> Signed-off-by:
Zhu Yi <yi.zhu@intel.com> Signed-off-by:
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Christian Lamparter authored
"[PATCH 3/4 v2] ar9170: fix LED power state handling" revealed a bug which can cause a ugly crash. The delayed worker is canceled before the LED class functions are unregistered... So, if something manages to update the LEDs while unregister routine is running the timer could fire _after_ the module has been unloaded. Signed-off-by:
Christian Lamparter <chunkeey@web.de> Signed-off-by:
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Christian Lamparter authored
This patch contains a few more mostly random fixes for the USB front-end. 1. handle irq command response, instead of printing it to the console. 2. remove fixed FIXME. (real fix: "ar9170usb: reset device on resume". ) 3. some more one-liner. - get rid of a useless "return;" - add a few branch prediction hints in hot-paths etc. Signed-off-by: -
Christian Lamparter authored
This patch takes care of Johannes' deadlock report by moving the mutex_lock right after cancel_work_sync in ar9170_op_stop. Besides, the janitor does not need to hold the mutex anymore, so this extra lines can be removed as well. Signed-off-by:
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Christian Lamparter authored
This patch fixes a minor visual bug in the led code, which left the LED in the wrong power state when it was toggled in a _unexpected_ way (e.g: enabling the LED twice). Signed-off-by:
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Christian Lamparter authored
This patch removes a redundant flag. .cap = IEEE80211_HT_CAP_MAX_AMSDU | \ > IEEE80211_HT_CAP_SM_PS | \ < [...] \ > IEEE80211_HT_CAP_SM_PS, \ < .ampdu_factor = 3, \ Signed-off-by:
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Christian Lamparter authored
This patch fixes a bug in configure_filter's (sub-)routines. We never really cleared the flags once we updated the hardware state, so we wasted our resources by applying already active settings. Signed-off-by:
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Christian Lamparter authored
This patch introduces 3 new function which are used to update the MAC state, whenever needed... e.g: after a band switch. Signed-off-by:
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Christian Lamparter authored
This patch replace a few constant magics which may affected the device when operating in a 40MHz channel. Signed-off-by:
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Christian Lamparter authored
This patch only contains a few uncritical updates for the hardware definition header. Signed-off-by:
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Christian Lamparter authored
This patch fixes a simple copy & paste error that affected beacon transmission in 802.11a mode. Signed-off-by:
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Johannes Berg authored
This removes the use of the deprecated radio_enabled setting and code associated with that. Signed-off-by:
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Luis R. Rodriguez authored
This fixes an incorrect assumption (BUG_ON) made in cfg80211 when handling country IE regulatory requests. The assumption was that we won't try to call_crda() twice for the same event and therefore we will not recieve two replies through nl80211 for the regulatory request. As it turns out it is true we don't call_crda() twice for the same event, however, kobject_uevent_env() *might* send the udev event twice and/or userspace can simply process the udev event twice. We remove the BUG_ON() and simply ignore the duplicate request. For details refer to this thread: http://marc.info/?l=linux-wireless&m=124149987921337&w=2 Cc: stable@kernel.org Reported-by:
Maxim Levitsky <maximlevitsky@gmail.com> Signed-off-by:
Luis R. Rodriguez <lrodriguez@atheros.com> Signed-off-by:
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Johannes Berg authored
NETDEV_UP is called after the device is set UP, but sometimes it is useful to be able to veto the device UP. Introduce a new NETDEV_PRE_UP notifier that can be used for exactly this. The first use case will be cfg80211 denying interfaces to be set UP if the device is known to be rfkill'ed. Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Luis R. Rodriguez authored
This adds: USB 0x057C:0x8401 AVM FRITZ!WLAN USB Stick N USB 0x057C:0x8402 AVM FRITZ!WLAN USB Stick N 2.4 These devices require the 1-stage firmware, if not present we don't continue. Cc: Peter Grabienski <Peter.Grabienski@Atheros.com> Cc: Stephen Chen <Stephen.Chen@Atheros.com> Cc: Michael Fortin <Michael.Fortin@Atheros.com> Cc: Johnny Cheng <Johnny.Cheng@Atheros.com> Cc: Yuan-Gu Wei <Yuan-Gu.Wei@atheros.com> Cc: Joerg Albert <jal2@gmx.de> Signed-off-by:
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Luis R. Rodriguez authored
You can get the stage 1 firmware from here: http://www.kernel.org/pub/linux/kernel/people/mcgrof/firmware/ar9170/ar9170.fw md5sum: 34feec4ec0eae3bb92c7c1ea2dfb4530 sha1sum: 6e5250498b815c2940d97242de31e054ae44e079 Its license: http://www.kernel.org/pub/linux/kernel/people/mcgrof/firmware/ar9170/LICENSE This is a new firmware, tested with WNDA3100. Cc: Peter Grabienski <Peter.Grabienski@Atheros.com> Cc: Stephen Chen <Stephen.Chen@Atheros.com> Cc: Michael Fortin <Michael.Fortin@Atheros.com> Cc: Johnny Cheng <Johnny.Cheng@Atheros.com> Cc: Yuan-Gu Wei <Yuan-Gu.Wei@atheros.com> Cc: Joerg Albert <jal2@gmx.de> Signed-off-by:
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Jouni Malinen authored
It looks like mac80211 can request the driver to start beaconing with a beacon interval of zero in some cases (at least for mesh point). This does not sound correct and something may need to be fixed in mac80211. However, taken into account the unpleasantness of getting stuck in an infinite busy loop with rtnl_lock held, let's add a quick workaround in the driver to avoid the worst symptom while someone more familiar with the mesh implementation can figure out what should be done with mac80211 as far as beacon interval configuration is concerned. Signed-off-by:
Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by:
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Bob Copeland authored
ieee80211_conf->beacon_int was deprecated and removed in a cleanup patch, however it was accidentally added back to ath5k in the change "ath5k: Allow user/driver to set txpower." Remove it once more, fixing the following warning: [13091.968902] WARNING: at drivers/net/wireless/ath/ath5k/base.c:2167 warn_slowpath_null+0x15/0x1a() [13091.968906] Hardware name: MacBook1,1 [13091.968909] Modules linked in: usb_storage fuse i915 drm af_packet acpi_cpufreq binfmt_misc dm_mirror dm_region_hash dm_log dm_multipath dm_mod snd_hda_codec_idt snd_hda_intel snd_hda_codec snd_seq_dummy hid_apple arc4 ecb snd_seq_oss snd_seq_midi_event usbhid snd_seq ath5k mac80211 appletouch snd_seq_device snd_pcm_oss snd_mixer_oss sky2 snd_pcm ath processor cfg80211 snd_timer sg ohci1394 snd uhci_hcd bitrev ieee1394 joydev ehci_hcd crc32 snd_page_alloc button ac thermal battery sr_mod applesmc cdrom evdev input_polldev unix [last unloaded: microcode] [13091.968985] Pid: 2132, comm: phy0 Tainted: G W 2.6.30-rc5-wl #118 [13091.968988] Call Trace: [13091.968994] [<c0125884>] warn_slowpath_fmt+0x77/0xa6 [13091.969003] [<c03557d8>] ? _spin_unlock+0x2c/0x41 [13091.969008] [<c0355a56>] ? _spin_lock_irqsave+0x15/0x69 [13091.969012] [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d [13091.969019] [<c01445bb>] ? trace_hardirqs_off+0xb/0xd [13091.969024] [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d [13091.969029] [<c01445bb>] ? trace_hardirqs_off+0xb/0xd [13091.969034] [<c0355783>] ? _spin_unlock_irqrestore+0x34/0x5d [13091.969039] [<c01258c8>] warn_slowpath_null+0x15/0x1a [13091.969054] [<f965846d>] ath5k_beacon_update_timers+0x44/0x27f [ath5k] [13091.969059] [<c0126370>] ? vprintk+0x2dd/0x312 [13091.969063] [<c0125e50>] ? release_console_sem+0x1a6/0x1d3 [13091.969076] [<f96586c5>] ath5k_reset_tsf+0x1d/0x2c [ath5k] [13091.969095] [<f93f4426>] __ieee80211_sta_join_ibss+0x35/0x3aa [mac80211] [13091.969102] [<c0252793>] ? extract_entropy+0x47/0x8a [13091.969121] [<f93f4b21>] ieee80211_sta_find_ibss+0x2de/0x32f [mac80211] [13091.969126] [<c035422c>] ? mutex_lock_nested+0x28b/0x2a5 [13091.969145] [<f93f4b8e>] ? ieee80211_ibss_notify_scan_completed+0x1c/0x6f [mac80211] [13091.969164] [<f93f4bc9>] ieee80211_ibss_notify_scan_completed+0x57/0x6f [mac80211] [13091.969182] [<f93f26da>] ieee80211_scan_completed+0x31a/0x33f [mac80211] [13091.969201] [<f93f27ca>] ieee80211_scan_work+0xcb/0x18b [mac80211] [13091.969207] [<c0133a6a>] worker_thread+0x1b1/0x28e [13091.969212] [<c0133a25>] ? worker_thread+0x16c/0x28e [13091.969230] [<f93f26ff>] ? ieee80211_scan_work+0x0/0x18b [mac80211] [13091.969237] [<c013736e>] ? autoremove_wake_function+0x0/0x38 [13091.969242] [<c01338b9>] ? worker_thread+0x0/0x28e [13091.969246] [<c0137031>] kthread+0x4a/0x70 [13091.971460] [<c0136fe7>] ? kthread+0x0/0x70 [13091.971467] [<c0103527>] kernel_thread_helper+0x7/0x10 [13091.971470] ---[ end trace 8defaa5d15c50cef ]--- Signed-off-by:
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Luis R. Rodriguez authored
When the SME requests to associate to an open AP ieee80211_sta_set_extra_ie() can be called with zero IE length. When this happens or when the extra IE has already been set -EALREADY is passed down and the supplicant will complain that the operation is already in progress and it will not let us associate. We correct this by treating -EALREADY from ieee80211_sta_set_extra_ie() as a success just as we do for wext. Cc: Shan.Palanisamy@Atheros.com Signed-off-by:
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Cliff Cai authored
Signed-off-by:
Cliff Cai <cliff.cai@analog.com> Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
Bryan Wu <cooloney@kernel.org> Acked-by:
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Jeff Hansen authored
This patch adds the debug file to the ath9k debugfs, which lets you modify the debug_mask at runtime, without having to reload the ath9k module. Signed-off-by:
Jeff Hansen <x@jeffhansen.com> Signed-off-by:
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Jeff Hansen authored
This patch combines the legacy and 11n rcstats into one, using the normal rate table indices instead of two separate indices for each mode. Legacy rates also get all of the PER and retry information, now, too. Signed-off-by:
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Jeff Hansen authored
I have a TrendNet 652-BRP running OpenWRT + ath9k very well. The only problem is that the beacon gets stuck maybe once a day. After Vasanthakumar Thiagarajan's "ath9k: cleanup beacon parameters configuration" patch, ath9k would nearly re-configure the beacons after it detected the stuck beacon, and did a reset. But it would fail the SC_OP_TSF_RESET check in ath_beacon_config_ap. This patch gets the beacon fully reconfigured after the reset. Signed-off-by:
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Johannes Berg authored
On non-AP interfaces userspace has no business interfering with the station management, this can confuse mac80211 (and other drivers probably wouldn't support it anyway). Allow adding and removing stations only on AP interfaces. (Reconcile this w/ previous version of patch posted with same subject... -- JWL) Signed-off-by:
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Johannes Berg authored
I accidentally transposed these in the patch that "fixed" the defaults, leading to extremely low throughput because of the huge min CW. Signed-off-by:
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Randy Dunlap authored
Fix printk format for size_t variable: drivers/net/wireless/iwmc3200wifi/fw.c:75: warning: format '%d' expects type 'int', but argument 4 has type 'size_t' Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Cc: ilw@linux.intel.com Acked-by:
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Samuel Ortiz authored
We were sending the fragmentation threshold value to the wrong table, causing an LMAC assert when setting it from wext. Signed-off-by:
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Rami Rosen authored
When building when CONFIG_IWLWIFI_DEBUG is not set, we get the following warning: /work/src/w/drivers/net/wireless/iwlwifi/iwl-core.c: In function ‘iwl_isr’: /work/src/w/drivers/net/wireless/iwlwifi/iwl-core.c:1707: warning: unused variable ‘inta_fh’ This patch avoids this warning by adding #ifdef CONFIG_IWLWIFI_DEBUG before the declaration of inta_fh in iwl_isr() in drivers/net/wireless/iwlwifi/iwl-core.c Signed-off-by:
Rami Rosen <ramirose@gmail.com> Acked-by:
Reinette Chatre <reinette.chatre@intel.com> Signed-off-by:
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Johannes Berg authored
Instead of hardcoding the key length for validation, use the constants Zhu Yi recently added and add one for AES_CMAC too. Signed-off-by:
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Johannes Berg authored
When a scan finishes only the program that asked for it knows what kind of scan it was; let's tell everybody else about the scan parameters as well so they can evaluate the result of the scan better. Also helps with debugging. Signed-off-by:
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Johannes Berg authored
We have some validation code in mac80211 but said code will force an invalid AID to 0 which isn't a valid AID either; instead require a valid AID (1-2007) to be passed in from userspace in cfg80211 already. Also move the code before the race comment since it can only be executed during STA addition and thus is not racy. Signed-off-by:
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Ivo van Doorn authored
This removes the last usage of beacon_int inside the iee80211_config structure from rt2x00. The attempt is a bit hackish, and subject to change in the future when the entire rt2x00_dev structure is cleaned up and restructured. Signed-off-by:
Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by:
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