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* mac80211: allow drivers to provide most station statisticsJohannes Berg2015-01-081-26/+7
| | | | | | | | | | | | | | | | | | | In many cases, drivers can filter things like beacons that will skew statistics reported by mac80211. To get correct statistics in these cases, call drivers to obtain statistics and let them override all values, filling values from mac80211 if the driver didn't provide them. Not all of them make sense for the driver to fill, so some are still always done by mac80211. Note that this doesn't currently allow a driver to say "I know this value is wrong, don't report it at all", or to sum it up with a mac80211 value (as could be useful for "dropped misc"), that can be added if it turns out to be needed. This also gets rid of the get_rssi() method as is can now be implemented using sta_statistics(). Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* cfg80211: clean up beacon loss CQM eventJohannes Berg2014-11-261-0/+6
| | | | | | | | | | Having it as a sub-event for RSSI thresholds is very ugly, but luckily no userspace actually uses the events yet. Move the event to its own function call internally and to its own event attribute in nl80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: notify drivers on sta rate table changesJohannes Berg2014-11-191-0/+7
| | | | | | | | | This allows drivers with a firmware or chip-based rate lookup table to use the most recent default rate selection without having to get it from per-packet data or explicit ieee80211_get_tx_rate calls Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDRJohannes Berg2014-11-191-6/+25
| | | | | | | | Allow drivers to support NL80211_SCAN_FLAG_RANDOM_ADDR with software based scanning and generate a random MAC address for them for every scan request with the flag. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add TDLS channel-switch Rx flowArik Nemtsov2014-11-191-0/+45
| | | | | | | | | | When receiving a TDLS channel switch request or response, parse the frame and call a new tdls_recv_channel_switch op in the low level driver with the parsed data. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: introduce TDLS channel switch opsArik Nemtsov2014-11-191-0/+57
| | | | | | | | | | | | | | | | Implement the cfg80211 TDLS channel switch ops and introduce new mac80211 ones for low-level drivers. Verify low-level driver support for the new ops when using the relevant wiphy feature bit. Also verify the peer supports channel switching before passing the command down. Add a new STA flag to track the off-channel state with the TDLS peer and make sure to cancel the channel-switch if the peer STA is unexpectedly removed. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Signed-off-by: Arik Nemtsov <arik@wizery.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add device_timestamp to the drv_pre_channel_switch traceLuciano Coelho2014-11-101-0/+2
| | | | | | | | The device_timestamp value was left out of the event trace for drv_pre_channel_switch by mistake. Add it. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: replace restart_complete() with reconfig_complete()Eliad Peller2014-11-041-3/+20
| | | | | | | | | | | | | | | Drivers might want to know also when mac80211 has completed reconfiguring after resume (e.g. in order to know when frames can be passed to mac80211). Rename restart_complete() to a more-generic reconfig_complete(), and add a new enum to indicate the reconfiguration type. Update the current users with the new prototype. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add support for driver tx power reportingFelix Fietkau2014-11-041-0/+27
| | | | | | | | | The configured tx power is often limited by hardware capabilities, channel settings, antenna configuration, etc. Signed-off-by: Felix Fietkau <nbd@openwrt.org> [fix tracing compilation] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: allow channel switch with multiple channel contextsLuciano Coelho2014-10-091-3/+6
| | | | | | | | | Channel switch with multiple channel contexts should now work fine. Remove check that disallows switches when multiple contexts are in use. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add post_channel_switch driver operationLuciano Coelho2014-10-091-0/+6
| | | | | | | | | As a counterpart to the pre_channel_switch operation, add a post_channel_switch operation. This allows the drivers to go back to a normal configuration after the channel switch is completed. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add pre_channel_switch driver operationLuciano Coelho2014-10-091-0/+33
| | | | | | | | | | Some drivers may need to prepare for a channel switch also when it is initiated from the remote side (eg. station, P2P client). To make this possible, add a generic callback that can be called for all interface types. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add device_timestamp to the ieee80211_channel_switch structLuciano Coelho2014-10-091-0/+2
| | | | | | | | | | Some devices may need the device timestamp in order to synchronize the channel switch. To pass this value back to the driver, add it to the channel switch structure and copy the device_timestamp value received in the rx info structure into it. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: extend set_coverage_class signatureLorenzo Bianconi2014-09-051-2/+2
| | | | | | | | | | 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>
* mac80211: protect TDLS discovery sessionArik Nemtsov2014-06-231-0/+7
| | | | | | | | | | | After sending a TDLS discovery-request, we expect a reply to arrive on the AP's channel. We must stay on the channel (no PSM, scan, etc.), since a TDLS setup-response is a direct packet not buffered by the AP. Add a new mac80211 driver callback to allow discovery session protection. Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville2014-05-291-0/+85
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| * mac80211: add a single-transaction driver op to switch contextsLuciano Coelho2014-05-261-0/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases, when the driver is already using all the channel contexts it can handle at once, we have to do an in-place switch (ie. we cannot afford using an extra context temporarily for the transaction). But some drivers may not support switching the channel context assigned to a vif on the fly (ie. without unassigning and assigning it) while others may only work if the context is changed on the fly, without unassigning it first. To allow these different scenarios, add a new driver operation that let's the driver decide how to handle an in-place switch. Signed-off-by: Luciano Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-nextJohn W. Linville2014-05-221-0/+32
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| * mac80211: export the expected throughputAntonio Quartulli2014-05-211-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add get_expected_throughput() API to mac80211 so that each driver can implement its own version based on the RC algorithm they are using (might be using an HW RC algo). The API returns a value expressed in Kbps. Also, add the new get_expected_throughput() member to the rate_control_ops structure in order to be able to query the RC algorithm (this patch provides an implementation of this API for both minstrel and minstrel_ht). The related member in the station_info object is now filled accordingly when dumping a station. Cc: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* | mac80211: fix vif name tracingEliad Peller2014-05-091-2/+2
|/ | | | | | | | | | | | | | | | If sdata doesn't have a valid dev (e.g. in case of monitor vif), the vif_name field was initialized with (a length of) some short string, but later was set to a different, potentially larger one. This resulted in out-of-bounds write, which usually appeared as garbage in the trace log. Simply trace sdata->name, as it should always have the correct name for both cases. Signed-off-by: Eliad Peller <eliadx.peller@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
* mac80211: add tracing for ieee80211_sta_set_bufferedJohannes Berg2014-01-061-0/+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>
* mac80211: fix checkpatch errorsWeilong Chen2013-12-181-1/+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>
* mac80211: add pre-RCU-sync sta removal driver operationJohannes Berg2013-12-161-19/+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>
* Merge remote-tracking branch 'wireless-next/master' into mac80211-nextJohannes Berg2013-12-161-2/+2
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| * Merge branch 'for-john' of ↵John W. Linville2013-12-021-2/+19
| |\ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
| * \ Merge branch 'master' of ↵John W. Linville2013-10-171-0/+35
| |\ \ | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem
| * | | net:drivers/net: Miscellaneous conversions to ETH_ALENJoe Perches2013-10-021-2/+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>
* | | | Revert "mac80211: add driver callback for per-interface multicast filter"Johannes Berg2013-12-031-24/+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>
* | | mac80211: add min required channel definition fieldEliad Peller2013-11-251-2/+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>
* | mac80211: add explicit IBSS driver operationsJohannes Berg2013-10-011-0/+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>
* mac80211: add channel switch command and beacon callbacksSimon Wunderlich2013-08-011-0/+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>
* mac80211: support secondary channel offset in CSAJohannes Berg2013-04-161-4/+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>
* mac80211: Use a cfg80211_chan_def in ieee80211_hw_conf_chanKarl Beldan2013-03-251-20/+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>
* mac80211: add P2P NoA settingsJanusz Dziedzic2013-03-221-4/+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>
* mac80211: pass queue bitmap to flush operationJohannes Berg2013-03-181-4/+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>
* mac80211: add driver callback for per-interface multicast filterAlexander Bondar2013-03-111-0/+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>
* mac80211: Allow drivers to differentiate between ROC typesIlan Peer2013-03-061-4/+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>
* mac80211: Fix incorrect use of STA_PR_FMT in trace pointsSeth Forshee2013-02-151-3/+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>
* mac80211: add radar detection command/eventSimon Wunderlich2013-02-151-0/+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>
* mac80211: introduce beacon-only timing dataJohannes Berg2013-02-111-0/+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>
* mac80211: fix chandef tracing bugJohannes Berg2013-02-111-1/+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>
* mac80211: provide the vif in rssi_callbackEmmanuel Grumbach2013-01-241-3/+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>
* mac80211: allow drivers to access IPv6 informationJohannes Berg2013-01-181-0/+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>
* mac80211: remove ARP filter enable/disable logicJohannes Berg2013-01-181-4/+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>
* mac80211: add op to configure default key idYoni Divinsky2013-01-181-0/+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>
* mac80211: split out chandef tracing macrosJohannes Berg2013-01-161-9/+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>
* mac80211: convert to channel definition structJohannes Berg2012-11-261-8/+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>
* cfg80211: remove remain-on-channel channel typeJohannes Berg2012-11-261-4/+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>
* mac80211: make remain_on_channel() op pass vif paramEliad Peller2012-11-191-4/+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>
* mac80211: call driver method when restart completesJohannes Berg2012-11-091-0/+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>
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