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* mac80211: sync driver before TXJohannes Berg2011-07-201-0/+43
| | | | | | | | | | | | | In P2P client mode, the GO (AP) to connect to might have periods of time where it is not available due to powersave. To allow the driver to sync with it and send frames to the GO only when it is available add a new callback tx_sync (and the corresponding finish_tx_sync). These callbacks can sleep unlike the actual TX. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add driver RSSI threshold eventsMeenakshi Venkataraman2011-07-111-0/+46
| | | | | | | | | | | | | | | | | mac80211 maintains a running average of the RSSI when a STA is associated to an AP. Report threshold events to any driver that has registered callbacks for getting RSSI measurements. Implement callbacks in mac80211 so that driver can set thresholds. Add callbacks in mac80211 which is invoked when an RSSI threshold event occurs. mac80211: add tracing to rssi_reports api and remove extraneous fn argument mac80211: scale up rssi thresholds from driver by 16 before storing Signed-off-by: Meenakshi Venkataraman <meenakshi.venkataraman@intel.com> Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: support GTK rekey offloadJohannes Berg2011-07-061-0/+49
| | | | | | | | | This adds the necessary mac80211 APIs to support GTK rekey offload, mirroring the functionality from cfg80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add cancel_hw_scan() callbackEliad Peller2011-06-171-0/+6
| | | | | | | | | | | | | | | When suspending, __ieee80211_suspend() calls ieee80211_scan_cancel(), which will only cancel sw scan. In order to cancel hw scan, the low-level driver has to cancel it in the suspend() callback. however, this is too late, as a new scan_work will be enqueued (while the driver is going into suspend). Add a new cancel_hw_scan() callback, asking the driver to cancel an active hw scan, and call it in ieee80211_scan_cancel(). Signed-off-by: Eliad Peller <eliad@wizery.com> Reviewed-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add support for HW scheduled scanLuciano Coelho2011-05-111-18/+70
| | | | | | | | | | | | | Implement support for HW scheduled scan. The mac80211 code doesn't perform scheduled scans itself, but calls the driver to start and stop scheduled scans. This patch also creates a trace event class to be used by drv_hw_scan and the new drv_sched_scan_start and drv_sched_stop functions, in order to avoid duplicate code. Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add a couple of trace event classes to reduce duplicated codeLuciano Coelho2011-05-111-77/+53
| | | | | | | | | | | | | The functions drv_add_interface() and drv_remove_interface() print out the same values in the traces. Combine the traces of these two functions into one event class to remove some duplicate code. Also add a new class for functions drv_set_frag_threshold() and drv_set_rts_threshold(). Cc: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Luciano Coelho <coelho@ti.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add basic support for WoWLANJohannes Berg2011-05-051-0/+10
| | | | | | | | | | | | | | This adds basic support for the new WoWLAN configuration in mac80211. The behaviour is completely offloaded to the driver though, with two new callbacks (suspend/resume). Options for the driver include a complete reconfiguration after wakeup, and exposing all the triggers it wants to support. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Add new API for rate selectionSujith Manoharan2011-04-281-0/+27
| | | | | | | | | | This patch adds a new API for setting a TX rate mask in drivers that have rate control in either the firmware or hardware. This can be used for various purposes, for example, masking out the 11b rates in P2P operation. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Check for queued frames before entering power save.Vivek Natarajan2011-04-121-0/+20
| | | | | | | | | | | | | | | In a highly noisy environment, the tx rate of the driver drops and the application slows down since it has not yet received ACKs for the frames already queued in the hardware. Since this ACK may take more than 100ms, stopping the dev queues for entering PS at this stage breaks applications, WMM test cases in my testing. If there are frames already pending in the tx queue, postponing the PS logic helps to avoid redundant queue stops. When power save is enabled by default and in a noisy environment, this API certainly helps in improving the average throughput. Signed-off-by: Vivek Natarajan <vnatarajan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: implement support for cfg80211_ops->{get,set}_ringparamJohn W. Linville2011-03-111-0/+52
| | | | Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: support direct offchannel TX offloadJohannes Berg2011-02-251-0/+33
| | | | | | | | | | | | | For devices supported by iwlwifi sometimes off-channel transmissions need to be handled by the device completely. To support this mac80211 needs to pass the frame directly to the driver and not through the TX path as the driver needs the frame and channel information at the same time. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use DECLARE_EVENT_CLASSJohannes Berg2011-01-261-169/+33
| | | | | | | | | | | | | | | | | | | For events that include only the local struct as their parameter, we can use DECLARE_EVENT_CLASS and save quite some binary size across segments as well lines of code. text data bss dec hex filename 375745 19296 916 395957 60ab5 mac80211.ko.before 367473 17888 916 386277 5e4e5 mac80211.ko.after -8272 -1408 0 -9680 -25d0 delta Some more tracepoints with identical arguments could be combined like this but for now this is the one that benefits most. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: track receiver's aggregation reorder buffer sizeJohannes Berg2011-01-191-4/+7
| | | | | | | | | | | | | | | | | | | | | | | The aggregation code currently doesn't implement the buffer size negotiation. It will always request a max buffer size (which is fine, if a little pointless, as the mac80211 code doesn't know and might just use 0 instead), but if the peer requests a smaller size it isn't possible to honour this request. In order to fix this, look at the buffer size in the addBA response frame, keep track of it and pass it to the driver in the ampdu_action callback when called with the IEEE80211_AMPDU_TX_OPERATIONAL action. That way the driver can limit the number of subframes in aggregates appropriately. Note that this doesn't fix any drivers apart from the addition of the new argument -- they all need to be updated separately to use this variable! Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: implement hardware offload for remain-on-channelJohannes Berg2011-01-051-0/+80
| | | | | | | | | This allows drivers to support remain-on-channel offload if they implement smarter timing or need to use a device implementation like iwlwifi. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Add antenna configurationBruno Randolf2010-11-161-0/+50
| | | | | | | | | | Allow antenna configuration by calling driver's function for it. We disallow antenna configuration if the wiphy is already running, mainly to make life easier for 802.11n drivers which need to recalculate HT capabilites. Signed-off-by: Bruno Randolf <br1@einfach.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: support hardware TX fragmentation offloadArik Nemtsov2010-11-161-0/+21
| | | | | | | | | | | The lower driver is notified when the fragmentation threshold changes and upon a reconfig of the interface. If the driver supports hardware TX fragmentation, don't fragment packets in the stack. Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add p2p device type supportJohannes Berg2010-09-161-8/+13
| | | | | | | | | | | | | When a driver advertises p2p device support, mac80211 will handle it, but internally it will rewrite the interface type to STA/AP rather than P2P-STA/GO since otherwise a lot of paths need to be touched that are otherwise identical. A p2p boolean tells drivers whether or not a given interface will be used for p2p or not. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: support runtime interface type changesJohannes Berg2010-08-271-0/+25
| | | | | | | | | | | | | | | | | Add support to mac80211 for changing the interface type even when the interface is UP, if the driver supports it. To achieve this * add a new driver callback for switching, * split some of the interface up/down code out into new functions (do_open/do_stop), and * maintain an own __SDATA_RUNNING bit that will not be set during interface type, so that any other code doesn't use the interface. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: use cipher suite selectorsJohannes Berg2010-08-161-2/+2
| | | | | | | | | | | | | Currently, mac80211 translates the cfg80211 cipher suite selectors into ALG_* values. That isn't all too useful, and some drivers benefit from the distinction between WEP40 and WEP104 as well. Therefore, convert it all to use the cipher suite selectors. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add basic tracing to drv_get_surveyJohn W. Linville2010-06-291-0/+22
| | | | | Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Fix circular locking dependency in ARP filter handlingJuuso Oikarinen2010-06-141-22/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a circular locking dependency when configuring the hardware ARP filters on association, occurring when flushing the mac80211 workqueue. This is what happens: [ 92.026800] ======================================================= [ 92.030507] [ INFO: possible circular locking dependency detected ] [ 92.030507] 2.6.34-04781-g2b2c009 #85 [ 92.030507] ------------------------------------------------------- [ 92.030507] modprobe/5225 is trying to acquire lock: [ 92.030507] ((wiphy_name(local->hw.wiphy))){+.+.+.}, at: [<ffffffff8105b5c0>] flush_workq ueue+0x0/0xb0 [ 92.030507] [ 92.030507] but task is already holding lock: [ 92.030507] (rtnl_mutex){+.+.+.}, at: [<ffffffff812b9ce2>] rtnl_lock+0x12/0x20 [ 92.030507] [ 92.030507] which lock already depends on the new lock. [ 92.030507] [ 92.030507] [ 92.030507] the existing dependency chain (in reverse order) is: [ 92.030507] [ 92.030507] -> #2 (rtnl_mutex){+.+.+.}: [ 92.030507] [<ffffffff810761fb>] lock_acquire+0xdb/0x110 [ 92.030507] [<ffffffff81341754>] mutex_lock_nested+0x44/0x300 [ 92.030507] [<ffffffff812b9ce2>] rtnl_lock+0x12/0x20 [ 92.030507] [<ffffffffa022d47c>] ieee80211_assoc_done+0x6c/0xe0 [mac80211] [ 92.030507] [<ffffffffa022f2ad>] ieee80211_work_work+0x31d/0x1280 [mac80211] [ 92.030507] -> #1 ((&local->work_work)){+.+.+.}: [ 92.030507] [<ffffffff810761fb>] lock_acquire+0xdb/0x110 [ 92.030507] [<ffffffff8105a51a>] worker_thread+0x22a/0x370 [ 92.030507] [<ffffffff8105ecc6>] kthread+0x96/0xb0 [ 92.030507] [<ffffffff81003a94>] kernel_thread_helper+0x4/0x10 [ 92.030507] [ 92.030507] -> #0 ((wiphy_name(local->hw.wiphy))){+.+.+.}: [ 92.030507] [<ffffffff81075fdc>] __lock_acquire+0x1c0c/0x1d50 [ 92.030507] [<ffffffff810761fb>] lock_acquire+0xdb/0x110 [ 92.030507] [<ffffffff8105b60e>] flush_workqueue+0x4e/0xb0 [ 92.030507] [<ffffffffa023ff7b>] ieee80211_stop_device+0x2b/0xb0 [mac80211] [ 92.030507] [<ffffffffa0231635>] ieee80211_stop+0x3e5/0x680 [mac80211] The locking in this case is quite complex. Fix the problem by rewriting the way the hardware ARP filter list is handled - i.e. make a copy of the address list to the bss_conf struct, and provide that list to the hardware driver when needed. The current patch will enable filtering also in promiscuous mode. This may need to be changed in the future. Reported-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: bracket driver tracingJohannes Berg2010-06-141-92/+97
| | | | | | | | | | | | | | | | | | | | | | Currently, driver tracing is sometimes invoked after and sometimes before the actual driver callback. This is fine as long as the driver has no tracing itself, but as soon as it does it gets confusing. To make traces containing such information easier to read, introduce a return tracer in mac80211 that essentially brackets any driver tracing, and invoke the real trace before the driver's callback, only showing the return value, if any, afterwards. Since tracing records the process, there's no problem with overlapping calls if that should happen. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: clean up ieee80211_stop_tx_ba_sessionJohannes Berg2010-06-031-6/+4
| | | | | | | | | | | | | | There's no sense in letting anything but internal mac80211 functions set the initiator to anything but WLAN_BACK_INITIATOR, since WLAN_BACK_RECIPIENT is only valid when we have received a frame from the peer, which we react to directly in mac80211. The debugfs code I recently added got this wrong as well. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: Add support for hardware ARP query filteringJuuso Oikarinen2010-06-031-0/+25
| | | | | | | | | | | | | | | | | | Some hardware allow extended filtering of ARP frames not intended for the host. To perform such filtering, the hardware needs to know the current IP address(es) of the host, bound to its interface. Add support for ARP filtering to mac80211 by adding a new op to the driver interface, allowing to configure the current IP addresses. This op is called upon association with the currently configured address(es), and when associated whenever the IP address(es) change. This patch adds configuration of IPv4 addresses only, as IPv6 addresses don't need ARP filtering. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: add offload channel switch supportJohannes Berg2010-05-121-0/+49
| | | | | | | | | | | | | | | | | | This adds support for offloading the channel switch operation to devices that support such, typically by having specific firmware API for it. The reasons for this could be that the firmware provides better timing or that regulatory enforcement done by the device requires special handling of CSAs. In order to allow drivers to specify the timing to the device, the new channel_switch callback will pass through the received frame's mactime, where available. Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: give virtual interface to hw_scanJohannes Berg2010-04-271-3/+6
| | | | | | | | | | | When scanning, it is somewhat important to scan on the correct virtual interface. All drivers that currently implement hw_scan only support a single virtual interface, but that may change and then we'd want to be ready. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: enhance tracingJohannes Berg2010-04-081-0/+275
| | | | | | | | | | | | | Enhance tracing by adding tracing for a variety of callbacks that the drivers call, and also for internal calls (currently limited to queue status). This can aid debugging what is going on in mac80211 in interaction with drivers, since we can now see what drivers call and not just what mac80211 calls in the driver. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: remove get_tx_stats() driver opKalle Valo2010-02-081-23/+0
| | | | | | | | | | 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>
* mac80211: allow station add/remove to sleepJohannes Berg2010-02-081-0/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* Merge branch 'master' of ↵John W. Linville2010-02-081-1/+1
|\ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 Conflicts: net/mac80211/scan.c
| * mac80211: fix NULL pointer dereference when ftrace is enabledZhu Yi2010-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I got below kernel oops when I try to bring down the network interface if ftrace is enabled. The root cause is drv_ampdu_action() is passed with a NULL ssn pointer in the BA session tear down case. We need to check and avoid dereferencing it in trace entry assignment. BUG: unable to handle kernel NULL pointer dereference Modules linked in: at (null) IP: [<f98fe02a>] ftrace_raw_event_drv_ampdu_action+0x10a/0x160 [mac80211] *pde = 00000000 Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [...] Call Trace: [<f98fdf20>] ? ftrace_raw_event_drv_ampdu_action+0x0/0x160 [mac80211] [<f98dac4c>] ? __ieee80211_stop_rx_ba_session+0xfc/0x220 [mac80211] [<f98d97fb>] ? ieee80211_sta_tear_down_BA_sessions+0x3b/0x50 [mac80211] [<f98dc6f6>] ? ieee80211_set_disassoc+0xe6/0x230 [mac80211] [<f98dc6ac>] ? ieee80211_set_disassoc+0x9c/0x230 [mac80211] [<f98dcbb8>] ? ieee80211_mgd_deauth+0x158/0x170 [mac80211] [<f98e4bdb>] ? ieee80211_deauth+0x1b/0x20 [mac80211] [<f8987f49>] ? __cfg80211_mlme_deauth+0xe9/0x120 [cfg80211] [<f898b870>] ? __cfg80211_disconnect+0x170/0x1d0 [cfg80211] Cc: Johannes Berg <johannes@sipsolutions.net> Cc: stable@kernel.org Signed-off-by: Zhu Yi <yi.zhu@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: pass vif and station to update_tkip_keyJohannes Berg2010-01-221-6/+9
| | | | | | | | | | | | | | | | | | | | When a TKIP key is updated, we should pass the station pointer instead of just the address, since drivers can use that to store their own data. We also need to pass the virtual interface pointer. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: Add new callback set_coverage_classLukáš Turek2010-01-121-0/+23
| | | | | | | | | | | | | | | | | | Mac80211 callback to driver set_coverage_class() sets slot time and ACK timeout for given IEEE 802.11 coverage class. The callback is optional, but it's essential for long distance links. Signed-off-by: Lukas Turek <8an@praha12.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: introduce flush operationJohannes Berg2009-12-281-0/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We've long lacked a good confirmation that frames have really gone out, e.g. before going off-channel for a scan. Add a flush() operation that drivers can implement to provide that confirmation, and use it in a few places: * before scanning sends the nullfunc frames * after scanning sends the nullfunc frames, if any * when going idle, to send any pending frames Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: enable spatial multiplexing powersaveJohannes Berg2009-12-221-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable spatial multiplexing in mac80211 by telling the driver what to do and, where necessary, sending action frames to the AP to update the requested SMPS mode. Also includes a trivial implementation for hwsim that just logs the requested mode. For now, the userspace interface is in debugfs only, and let you toggle the requested mode at any time. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: trace interface nameJohannes Berg2009-12-211-18/+20
| | | | | | | | | | | | | | | | It's not all that useful to have the vif/sdata pointer, we'd rather refer to the interfaces by their name. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | mac80211: reduce reliance on netdevJohannes Berg2009-12-211-7/+5
|/ | | | | | | | | | | | | | | | | | | For bluetooth 3, we will most likely not have a netdev for a virtual interface (sdata), so prepare for that by reducing the reliance on having a netdev. This patch moves the name and address fields into the sdata struct and uses them from there all over. Some work is needed to keep them sync'ed, but that's not a lot of work and in slow paths anyway. In doing so, this also reduces the number of pointer dereferences in many places, because of things like sdata->dev->dev_addr becoming sdata->vif.addr. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: log more data when tracingJohannes Berg2009-11-281-2/+24
| | | | | | | | | | | Enable logging of more configuration data when tracing is enabled. Except for the channel frequency this is only useful with the binary trace format, but that can be recorded and replayed with trace-cmd and I will be working on a plugin that reports all the information. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: convert aggregation to operate on vifs/stasJohannes Berg2009-11-181-3/+6
| | | | | | | | | | | | The entire aggregation code currently operates on the hw pointer and station addresses, but that needs to change to make stations purely per-vif; As one step preparing for that make the aggregation code callable with the station, or by the combination of virtual interface and station address. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: allow configure_filter callback to sleepJohannes Berg2009-08-201-6/+30
| | | | | | | | | | | | | | | | | | | | | Over time, a whole bunch of drivers have come up with their own scheme to delay the configure_filter operation to a workqueue. To be able to simplify things, allow configure_filter to sleep, and add a new prepare_multicast callback that drivers that need the multicast address list implement. This new callback must be atomic, but most drivers either don't care or just calculate a hash which can be done atomically and then uploaded to the hardware non-atomically. A cursory look suggests that at76c50x-usb, ar9170, mwl8k (which is actually very broken now), rt2x00, wl1251, wl1271 and zd1211 should make use of this new capability. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: fix spare warnings in driver-trace.hChristian Lamparter2009-07-241-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following errors: driver-trace.h:148:1: error: cannot size expression driver-trace.h:148:1: error: cannot size expression [...] driver-trace.h:222:1: error: cannot size expression driver-trace.h:71:1: error: incompatible types for operation (<) driver-trace.h:71:1: left side has type void *<noident> driver-trace.h:71:1: right side has type int driver-trace.h:99:1: error: incompatible types for operation (<) driver-trace.h:99:1: left side has type void *<noident> driver-trace.h:99:1: right side has type int driver-trace.h:148:1: error: incompatible types for operation (<) driver-trace.h:148:1: left side has type void *<noident> driver-trace.h:148:1: right side has type int driver-trace.h:222:1: error: cannot size expression driver-trace.h:248:1: error: incompatible types for operation (<) driver-trace.h:248:1: left side has type void *<noident> driver-trace.h:248:1: right side has type int driver-trace.h:446:1: error: incompatible types for operation (<) driver-trace.h:446:1: left side has type void *<noident> driver-trace.h:446:1: right side has type int Signed-off-by: Christian Lamparter <chunkeey@web.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mac80211: driver operation debuggingJohannes Berg2009-07-241-0/+648
This makes mac80211 use the event tracing framework to log all operations as given to the driver. This will need to be extended with more information, but as a start it should be good. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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