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path: root/net/mac80211/trace.h
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2014-01-06mac80211: add tracing for ieee80211_sta_set_bufferedJohannes Berg1-0/+27
This is useful for debugging issues with drivers using this function (erroneously), so add tracing for the API call. Change-Id: Ice9d7eabb8fecbac188f0a741920d3488de700ec Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-18mac80211: fix checkpatch errorsWeilong Chen1-1/+1
Fix a number of different checkpatch errors. Signed-off-by: Weilong Chen <chenweilong@huawei.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-16mac80211: add pre-RCU-sync sta removal driver operationJohannes Berg1-19/+15
Currently, mac80211 allows drivers to keep RCU-protected station references that are cleared when the station is removed from the driver and consequently needs to synchronize twice, once before removing the station from the driver (so it can guarantee that the station is no longer used in TX towards the driver) and once after the station is removed from the driver. Add a new pre-RCU-synchronisation station removal operation to the API to allow drivers to clear/invalidate their RCU-protected station pointers before the RCU synchronisation. This will allow removing the second synchronisation by changing the driver API so that the driver may no longer assume a valid RCU-protected pointer after sta_remove/sta_state returns. The alternative to this would be to synchronize_rcu() in all the drivers that currently rely on this behaviour (only iwlmvm) but that would defeat the purpose. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-16Merge remote-tracking branch 'wireless-next/master' into mac80211-nextJohannes Berg1-2/+2
2013-12-03Revert "mac80211: add driver callback for per-interface multicast filter"Johannes Berg1-24/+0
This reverts commit 488b366a452934141959384c7a1b52b22d6154ef. The code isn't used by anyone, and the Intel driver isn't planning to use it either right now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-12-02Merge branch 'for-john' of ↵John W. Linville1-2/+19
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
2013-11-25mac80211: add min required channel definition fieldEliad Peller1-2/+19
Add a new field to ieee80211_chanctx_conf to indicate the min required channel configuration. Tuning to a narrower channel might help reducing the noise level and saving some power. The min required channel definition is the max of all min required channel definitions of the interfaces bound to this channel context. In AP mode, use 20MHz when there are no connected station. When a new station is added/removed, calculate the new max bandwidth supported by any of the stations (e.g. 80MHz when 80MHz and 40MHz stations are connected). In other cases, simply use bss_conf.chandef as the min required chandef. Notify drivers about changes to this field by calling drv_change_chanctx with a new CHANGE_MIN_WIDTH notification. Signed-off-by: Eliad Peller <eliad@wizery.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-17Merge branch 'master' of ↵John W. Linville1-0/+35
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
2013-10-02net:drivers/net: Miscellaneous conversions to ETH_ALENJoe Perches1-2/+2
Convert the memset/memcpy uses of 6 to ETH_ALEN where appropriate. Also convert some struct definitions and u8 array declarations of [6] to ETH_ALEN. Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-01mac80211: add explicit IBSS driver operationsJohannes Berg1-0/+35
This can be useful for drivers if they have any failure cases when joining an IBSS. Also move setting the queue parameters to before this new call, in case the new driver op needs them already. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-08-01mac80211: add channel switch command and beacon callbacksSimon Wunderlich1-0/+26
The count field in CSA must be decremented with each beacon transmitted. This patch implements the functionality for drivers using ieee80211_beacon_get(). Other drivers must call back manually after reaching count == 0. This patch also contains the handling and finish worker for the channel switch command, and mac80211/chanctx code to allow to change a channel definition of an active channel context. Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de> [small cleanups, catch identical chandef] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-16mac80211: support secondary channel offset in CSAJohannes Berg1-4/+4
Add support for the secondary channel offset IE in channel switch announcements. This is necessary for proper handling of CSA on HT access points. For this to work it is also necessary to convert everything here to use chandef structs instead of just channels. The driver updates aren't really correct though. In particular, the TI wl18xx driver update can't possibly be right since it just ignores the new channel width for lack of firmware API. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-25mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chanKarl Beldan1-20/+17
Drivers that don't use chanctxes cannot perform VHT association because they still use a "backward compatibility" pair of {ieee80211_channel, nl80211_channel_type} in ieee80211_conf and ieee80211_local. Signed-off-by: Karl Beldan <karl.beldan@rivierawaves.com> [fix kernel-doc] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-22mac80211: add P2P NoA settingsJanusz Dziedzic1-4/+2
Add P2P NoA settings for STA mode. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> [fix docs] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-18mac80211: pass queue bitmap to flush operationJohannes Berg1-4/+7
There are a number of situations in which mac80211 only really needs to flush queues for one virtual interface, and in fact during this frames might be transmitted on other virtual interfaces. Calculate and pass a queue bitmap to the driver so it knows which queues to flush. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-11mac80211: add driver callback for per-interface multicast filterAlexander Bondar1-0/+24
Some devices have multicast filter capability for each individual virtual interface rather than just a global one. Add an interface specific driver callback allowing such drivers to configure this. Signed-off-by: Alexander Bondar <alexander.bondar@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06mac80211: Allow drivers to differentiate between ROC typesIlan Peer1-4/+7
Some devices can handle remain on channel requests differently based on the request type/priority. Add support to differentiate between different ROC types, i.e., indicate that the ROC is required for sending managment frames. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: Fix incorrect use of STA_PR_FMT in trace pointsSeth Forshee1-3/+3
Several tracepoints are using STA_PR_FMT where STA_PR_ARG should be used, resulting in messages like "phy0 sta:ARG TYPE NOT FIELD BUT 1". Change these to STA_PR_ARG. Signed-off-by: Seth Forshee <seth.forshee@canonical.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-15mac80211: add radar detection command/eventSimon Wunderlich1-0/+19
Add command to trigger radar detection in the driver/FW. Once radar detection is started it should continuously monitor for radars as long as the channel active. If radar is detected usermode notified with 'radar detected' event. Scanning and remain on channel functionality must be disabled while doing radar detection/scanning, and vice versa. Based on original patch by Victor Goldenshtein <victorg@ti.com> Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-11mac80211: introduce beacon-only timing dataJohannes Berg1-0/+2
In order to be able to predict the next DTIM TBTT in the driver, add the ability to use timing data from beacons only with the new hardware flag IEEE80211_HW_TIMING_BEACON_ONLY and the BSS info value sync_dtim_count which is only valid if the timing data came from a beacon. The data can only come from a beacon, and if no beacon was received before association it is updated later together with the DTIM count notification. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-11mac80211: fix chandef tracing bugJohannes Berg1-1/+1
The chandef tracing writes center_freq1 twice, so that it is always 0 (no driver supports 80+80 yet) and leaves center_freq2 unset. Fix this mistake. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-24mac80211: provide the vif in rssi_callbackEmmanuel Grumbach1-3/+6
Since drivers can support several BSS / P2P Client interfaces, the rssi callback needs to inform the driver about the interface teh rssi event relates to. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18mac80211: allow drivers to access IPv6 informationJohannes Berg1-0/+8
To be able to implement NS response offloading (in regular operation or while in WoWLAN) drivers need to know the IPv6 addresses assigned to interfaces. Implement an IPv6 notifier in mac80211 to call the driver when addresses change. Unlike for IPv4, implement it as a callback rather than as a list in the BSS configuration, that is more flexible. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18mac80211: remove ARP filter enable/disable logicJohannes Berg1-4/+9
Depending on the driver, having ARP filtering for some addresses may be possible. Remove the logic that tracks whether ARP filter is enabled or not and give the driver the total number of addresses instead of the length of the list so it can make its own decision. Reviewed-by: Luciano Coelho <coelho@ti.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-18mac80211: add op to configure default key idYoni Divinsky1-0/+23
There are hardwares which support offload of data packets for example when auto ARP is enabled the hw will send the ARP response. In such cases if WEP encryption is configured the hw must know the default WEP key in order to encrypt the packets correctly. When hw_accel is enabled and encryption type is set to WEP, the driver should get the default key index from mac80211. Signed-off-by: Yoni Divinsky <yoni.divinsky@ti.com> [cleanups, fixes, documentation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-01-16mac80211: split out chandef tracing macrosJohannes Berg1-9/+15
Some new APIs will require tracing a chandef without it being part of a channel context, so separate out the tracing macros for that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26mac80211: convert to channel definition structJohannes Berg1-8/+15
Convert mac80211 (and where necessary, some drivers a little bit) to the new channel definition struct. This will allow extending mac80211 for VHT, which is currently restricted to channel contexts since there are no drivers using that which makes it easier. As I also don't care about VHT for drivers not using the channel context API, I won't convert the previous API to VHT support. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-26cfg80211: remove remain-on-channel channel typeJohannes Berg1-4/+2
As mwifiex (and mac80211 in the software case) are the only drivers actually implementing remain-on-channel with channel type, userspace can't be relying on it. This is the case, as it's used only for P2P operations right now. Rather than adding a flag to tell userspace whether or not it can actually rely on it, simplify all the code by removing the ability to use different channel types. Leave only the validation of the attribute, so that if we extend it again later (with the needed capability flag), it can't break userspace sending invalid data. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-19mac80211: make remain_on_channel() op pass vif paramEliad Peller1-4/+9
Drivers (e.g. wl12xx) might need to know the vif to roc on (mainly in order to configure the rx filters correctly). Add the vif to the op params, and update the current users (iwlwifi) to use the new api. Signed-off-by: Eliad Peller <eliad@wizery.com> [fix hwsim] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09mac80211: call driver method when restart completesJohannes Berg1-0/+5
When the driver requests a restart (reconfiguration) it gets all the normal method calls, but can't really tell why they're happening. Call a new restart_complete op in the driver when the restart completes, so it could keep its own state about the restart and clear it there. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-09mac80211: remove unused tracepointJohannes Berg1-28/+0
Clearly the tracepoint drv_offchannel_tx was forgotten when that functionality was removed, remove it now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-11-06mac80211: pass P2P powersave parameters to driverJohannes Berg1-0/+4
While connected to a GO, parse the P2P NoA attribute and pass the CT Window and opportunistic powersave parameters to the driver. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-30mac80211: handle TX power per virtual interfaceJohannes Berg1-0/+2
Even before channel contexts/multi-channel, having a single global TX power limit was already problematic, in particular if two managed interfaces connected to two APs with different power constraints. The channel context introduction completely broke this though and in fact I had disabled TX power configuration there for drivers using channel contexts. Change everything to track TX power per interface so that different user settings and different channel maxima are treated correctly. Also continue tracking the global TX power though for compatibility with applications that attempt to configure the wiphy's TX power globally. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-26mac80211: add explicit AP/GO driver operationsJohannes Berg1-0/+37
Depending on the driver, a lot of setup may be necessary to start operating as an AP, some of which may fail. Add an explicit AP start driver method to make such failures easier to handle, and add an AP stop driver method for symmetry. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-25mac80211: complete bss_info tracingJohannes Berg1-3/+31
Some fields have been added but were missed in tracing, add them now. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-17mac80211: track needed RX chains for channel contextsJohannes Berg1-4/+9
On each channel that the device is operating on, it may need to listen using one or more chains depending on the SMPS settings of the interfaces using it. The previous channel context changes completely removed this ability (before, it was available as the SMPS mode). Add per-context tracking of the required static and dynamic RX chains and notify the driver on changes. To achieve this, track the chains and SMPS mode used on each virtual interface and update the channel context whenever this changes. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-10-16mac80211: introduce new ieee80211_opsMichal Kazior1-0/+107
Introduce channel context driver methods. The channel on a context channel is immutable, but the channel type and other properties can change. Signed-off-by: Michal Kazior <michal.kazior@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-20mac80211: don't assume channel is set in tracingJohannes Berg1-3/+6
With the move to multi-channel and away from drv_config(), hw.conf.channel will not always be set, only for devices using the current API instead of the new channel context APIs. Check the channel is set before adding its frequency to the trace data. Also break some overly long lines in the code. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-08-20mac80211: support P2P Device abstractionJohannes Berg1-1/+1
After cfg80211 got a P2P Device abstraction, add support to mac80211. Whether it really is supported or not will depend on whether or not the driver has support for it, but mac80211 needs to change to be able to support drivers that need a P2P Device. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-12mac80211: add time synchronisation with BSS for assocJohannes Berg1-2/+4
Some drivers (iwlegacy, iwlwifi and rt2x00) today use the bss_conf.last_tsf value. By itself though that value is completely worthless since it may be ancient. What really is needed is synchronisation between some device time and the TSF. To clarify this, rename bss_conf.last_tsf to sync_tsf and add sync_device_ts which is obtained from rx_status which gets a new field device_timestamp for this purpose. This is intentionally not using the mactime field since that is used for other things and in IBSS is expected to sync with the IBSS's TSF which isn't necessarily true for the device timestamp. Also, since we have the information and it's useful even before the connection has been established, give all the timing details to the driver before authenticating. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-07-03mac80211: add TX prepare APIJohannes Berg1-0/+7
Some drivers require setup before being able to send management frames in managed mode, in particular in multi-channel cases. Introduce API to allow the drivers to do such setup while being able to sleep waiting for the setup to finish in the device. This isn't possible inside the TX call since that can't sleep. A future patch may also restructure the TX retry to wait for the driver to report the frame status, as suggested by Arik in http://mid.gmane.org/CA+XVXffKSEL6ZQPQ98x-zO-NL2=TNF1uN==mprRyUmAaRn254g@mail.gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-24mac80211: trace debug messagesJohannes Berg1-0/+39
It can be very useful to have all debug messages available when debugging, but hard to correlate between different sources, so add a trace event for all mac80211 debug messages. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2012-06-24mac80211: rename driver-trace fileJohannes Berg1-0/+1641
This file will contain more soon, so rename it to just trace. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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