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path: root/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
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2014-03-11iwlwifi: mvm: make bt-coex.c genericEmmanuel Grumbach1-1280/+0
Make bt-coex generic to allow other coex mechanisms. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-03-11iwlwifi: mvm: BT Coex add support for Co-running blockEmmanuel Grumbach1-3/+288
7265 features a new calibration which is called antenna coupling. The purpose of this calibration (which isn't really a calibration), is to measure the isolation between the antennas and that can give us useful information for the Coex modules. With this information, we can tune the LookUpTables (LUTs) that define the BT / WiFi contention policy. The LUTs currently contain dummy values - but they will be updated soon. While at it, change the current code to stop duplicate the host command while sending. This was needed back then, when the command was short enough to be allocated on the stack. Since then, the command grew a lot and is now allocated on the heap - hence we can use the NOCOPY option instead. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-04iwlwifi: mvm: BT Coex - fix SYNC2SCO flagsEmmanuel Grumbach1-1/+3
The Sync to SCO is a feature that allows to synchronize between the WiFi traffic and the expectable BT traffic when SCO profile is active. We need to set the validity bit in the command in the init flow, and set / clear the enablement bit if we want to enabled / disable the feature. While at it, clean up the flags that are not used in the API. This feature needs to be enabled / disabled easily, so export its enablement to constants.h. Reviewed-by: Eyal Zolotov <eyal.zolotov@intel.com> Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-04iwlwifi: mvm: allow to force reduced tx power from debugfsEmmanuel Grumbach1-3/+3
This will be useful during tests done on the physical layer. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-04iwlwifi: mvm: BT Coex - change SMPS settings in AP modeEmmanuel Grumbach1-31/+54
Based on the Bluetooth activity grading, we can stop using the shared antenna and ask the stations to honor the new SMPS state. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-04iwlwifi: mvm: BT Coex - set low latency vif as primaryEmmanuel Grumbach1-5/+24
If a vif is in low latency mode, it should be in primary channel. Also tell BT Coex about the change when a vif enters or exits low latency mode. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2014-02-04iwlwifi: mvm: provide helper to fetch the iwl_mvm_sta from sta_idEmmanuel Grumbach1-12/+2
We somtimes need to fetch the iwl_mvm_sta structure from a station index - provide a helper to do that. Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-31iwlwifi: Update Copyright to 2014Emmanuel Grumbach1-2/+2
Happy new year! Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-31iwlwifi: mvm: BT Coex - update channel inihibition for channel 14Emmanuel Grumbach1-2/+2
This channel inhibition for channel 14 was wrong. Fix it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-10iwlwifi: mvm: BT Coex - enable Sync to SCOEmmanuel Grumbach1-1/+2
Sync to SCO is a feature that allows to synchronise the wifi activity with the predictable BT activity in SCO profile. This allows to reduce the collisions and improve overall quality. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-10iwlwifi: mvm: add iwl_mvm_sta_from_mac80211Johannes Berg1-4/+4
This is just a helper function to go from the mac80211 station struct to our internal one, to later allow us to avoid temporary 'mvmsta' variables. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-12-10iwlwifi: mvm: BT Coex - fine tune the aggregation sizeEmmanuel Grumbach1-1/+1
Latest tests have shown that when BT is active and has connections but the traffic is low, the WiFi aggregation can be large up to 4000us without noticeable impact on BT. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-11-26iwlwifi: mvm: BT Coex fix another NULL pointer dereferenceEmmanuel Grumbach1-0/+5
This patch is very similar to a previous fix: 22cba0c0852f When we disassociate, mac80211 removes the station and then, it sets the bss it unsets the assoc bool in bss_info. Since the firwmware wants it the opposite (first set the MAC context as unassoc, and only then, remove the STA of the API), we have a small period of time in which the STA in firmware doesn't have a valid ieee80211_sta pointer. During that time, iwl_mvm_vif->ap_sta_id, is still set to the STA in firmware that represent the AP. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-11-26iwlwifi: mvm: BT Coex - don't enable MULTI_PRIO_LUTEmmanuel Grumbach1-1/+0
This feature isn't supported by the firmware (yet). Note that settingt he values to BT_CFG_CMD is harmless if the validity bit is clear - so keep the configuration values in BT_CFG_CMD, but clear the validity bit until thes feature is enabled in the firmware. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-10-30iwlwifi: mvm: BT Coex - fix copy paste issueEmmanuel Grumbach1-1/+1
Putting the context id of the primary phy context in the placeholder of the secondary is obviously a bad idea. Spotted by smatch. Fixes: dac94da8dba3 ("iwlwifi: mvm: new BT Coex API") Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-10-29iwlwifi: mvm: BT Coex fix NULL pointer dereferenceEmmanuel Grumbach1-1/+5
When we disassociate, mac80211 removes the station and then, it sets the bss it unsets the assoc bool in bss_info. Since the firwmware wants it the opposite (first set the MAC context as unassoc, and only then, remove the STA of the API), we have a small period of time in which the STA in firmware doesn't have a valid ieee80211_sta pointer. During that time, iwl_mvm_vif->ap_sta_id, is still set to the STA in firmware that represent the AP. This avoids: [ 4481.476246] BUG: unable to handle kernel NULL pointer dereference at 00000045 [ 4481.479521] IP: [<f8416a6a>] iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm] [ 4481.482023] *pde = 00000000 [ 4481.484332] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 4481.486897] Modules linked in: netconsole configfs autofs4 rfcomm(O) bnep(O) nfsd nfs_acl auth_rpcgss exportfs nfs lockd binfmt_misc sunrpc fscache arc4 iwlmvm(O) mac80211(O) btusb(O) iwlwifi(O) bluetooth(O) cfg80211(O) snd_hda_codec_hdmi coretemp dell_wmi snd_hda_codec_idt compat(O) dell_laptop aesni_intel i915 sparse_keymap dcdbas cryptd psmouse serio_raw aes_i586 microcode snd_hda_intel drm_kms_helper snd_hda_codec drm snd_pcm snd_timer i2c_algo_bit video intel_agp intel_gtt snd soundcore snd_page_alloc crc32c_intel ahci sdhci_pci libahci sdhci mmc_core e1000e xhci_hcd [last unloaded: configfs] [ 4481.502983] [ 4481.505599] Pid: 6507, comm: kworker/0:1 Tainted: G O 3.4.43-dev #1 Dell Inc. Latitude E6430/0CMDYV [ 4481.508575] EIP: 0060:[<f8416a6a>] EFLAGS: 00010246 CPU: 0 [ 4481.511248] EIP is at iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm] [ 4481.513947] EAX: ffffffea EBX: 00000002 ECX: 00000001 EDX: 00000001 [ 4481.516710] ESI: ec6f0f28 EDI: 00000000 EBP: e8175dfc ESP: e8175d9c [ 4481.519445] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [ 4481.522185] CR0: 8005003b CR2: 00000045 CR3: 01a5e000 CR4: 001407d0 [ 4481.524950] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [ 4481.527768] DR6: ffff0ff0 DR7: 00000400 [ 4481.530565] Process kworker/0:1 (pid: 6507, ti=e8174000 task=e8032b20 task.ti=e8174000) [ 4481.533447] Stack: [ 4481.536379] e472439f 00003a12 e8032b20 e8033048 00000001 e8175ddc 00000246 e8033040 [ 4481.540132] 00000002 01814990 ec4d1ddc e8175dcc 00000000 00000000 00000000 00000000 [ 4481.543867] 00000000 00000000 00000001 000001c8 009b0002 ec4d1ddc ec6f0f28 00000000 [ 4481.547633] Call Trace: [ 4481.550578] [<f8418027>] iwl_mvm_bt_rssi_event+0x197/0x220 [iwlmvm] [ 4481.553537] [<f840919c>] iwl_mvm_stat_iterator+0xdc/0x240 [iwlmvm] [ 4481.556582] [<f8d129c2>] __iterate_active_interfaces+0xe2/0x1f0 [mac80211] [ 4481.559544] [<f84090c0>] ? iwl_mvm_update_smps+0x90/0x90 [iwlmvm] [ 4481.562519] [<f84090c0>] ? iwl_mvm_update_smps+0x90/0x90 [iwlmvm] [ 4481.565498] [<f8d12b0c>] ieee80211_iterate_active_interfaces+0x3c/0x50 [mac80211] [ 4481.568421] [<f8409b43>] iwl_mvm_rx_statistics+0xb3/0x130 [iwlmvm] [ 4481.571349] [<f8405431>] iwl_mvm_async_handlers_wk+0xc1/0xf0 [iwlmvm] [ 4481.574251] [<c1052915>] ? process_one_work+0x105/0x5c0 [ 4481.577162] [<c1052991>] process_one_work+0x181/0x5c0 [ 4481.580025] [<c1052915>] ? process_one_work+0x105/0x5c0 [ 4481.582861] [<f8405370>] ? iwl_mvm_rx_fw_logs+0x20/0x20 [iwlmvm] [ 4481.585722] [<c10530f1>] worker_thread+0x121/0x2c0 [ 4481.588536] [<c1052fd0>] ? rescuer_thread+0x1d0/0x1d0 [ 4481.591323] [<c105af0d>] kthread+0x7d/0x90 [ 4481.594059] [<c105ae90>] ? flush_kthread_worker+0x120/0x120 [ 4481.596868] [<c15b7cc2>] kernel_thread_helper+0x6/0x10 [ 4481.599605] Code: 9d de c3 c8 85 c0 74 0d 80 3d f8 ae 42 f8 00 0f 84 dc 00 00 00 8b 45 c8 0f b6 d3 31 ff 89 55 c0 8b 84 90 d8 03 00 00 0f b6 55 c7 <38> 50 5b 89 45 bc 0f 84 a8 00 00 00 a1 e4 d2 04 c2 85 c0 0f 84 [ 4481.611782] EIP: [<f8416a6a>] iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm] SS:ESP 0068:e8175d9c [ 4481.614985] CR2: 0000000000000045 [ 4481.687441] ---[ end trace b11bc915fbac4412 ]--- Reviewed-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
2013-10-18iwlwifi: mvm: BT Coex - enable Tx power based on BT statusEmmanuel Grumbach1-2/+2
The activity grading indication from the firmware should not be used in this case, but the bt_status in the firwmare notification. Fix that. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-18iwlwifi: mvm: BT Coex - always set mandatory fieldsEmmanuel Grumbach1-3/+7
The firmware always expects the Coex Mode to be set. Moreover, the firmware expects bit 0 is the valid bits to be set all the times. I misunderstood the API and didn't set these bits when commands are sent to update the paramters of the Coex. As a result, the firmware understood that the BT Coex was disabled (Coex mode = 0) and ignored all the updates (valid bit 0 clear). Fix that. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: add IBSS supportJohannes Berg1-1/+1
At the firmware level, IBSS support has similar programming requirements as AP/GO support, so use the same functions with just small differences. With IBSS only a single virtual interface can be used, so no changes in the advertised interface combinations are needed. For now, don't use hardware crypto for the GTKs in IBSS mode, the firmware should support it though. Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: BT Coex - update integration with rate controlEmmanuel Grumbach1-0/+18
Remove code that is not needed and always allow MIMO when in tight mode. In loose mode, we should avoid MIMO since BT can use the other antenna to Rx while we Tx. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: BT Coex - tune SMPS parametersEmmanuel Grumbach1-4/+4
Tests have shown that we should go SMSP_STATIC when BT traffic is high, and stay in dynamic if BT traffic is low. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: BT Coex - track bandwidth changes in HTEmmanuel Grumbach1-1/+1
BT Coex needs to be updated when the bandwidth is modified by the AP. While at it, remove the vif parameter from bt_coex_vif_change since it was unused. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: BT Coex - set the proper LUT for single ant devicesEmmanuel Grumbach1-2/+52
Single shared antenna devices need a special LUT. Address this need. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-11iwlwifi: mvm: BT Coex - don't limit agg size in loose schemeEmmanuel Grumbach1-1/+29
In loose BT Coex scheme, the aggregation size doesn't need to be limited. To avoid triggering it, remove a lockdep assertion - we need to compute the AMPDU size limit from rate control code which can't take mvm->mutex. This means that there is a race but in the worst case, we will have a wrong AMPDU size limit which is not a big issue. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: BT Coex - Correctly enable and treat rssi eventsEmmanuel Grumbach1-10/+30
Rssi events were enabled on interfaces using 5.2GHz. Interfaces on 5.2GHz were taken into account while determining the ACK / CTS kill mask. Fix that. The last rssi notified to BT Coex was reset every BT Coex Notification. Since we get a lot of these notifications from the firmware, we reset the rssi all the time which means that the bt_rssi_event is called all the time. Fix that by puting the rssi we pull upon BT Coex notification into iwl_mvm_vif_bf_data.last_bt_coex_event Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: BT Coex - adapt debugfs to new APIEmmanuel Grumbach1-9/+2
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: don't use reduced Tx power when not applicableEmmanuel Grumbach1-4/+12
When we have only one antenna for BT and WiFi, reduced Tx power is irrelevant. Also, in loose scheme, we should not use reduced Tx power nor set the control mask to Tx power. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: BT Coex - use data from firmwareEmmanuel Grumbach1-16/+42
The data in MailBox comes direclty from the BT core. We should use the data processed by the WiFi fw that is appended to the MailBox in the BT Coex notification. Also decide on whether the Coex type based on the input from the the firmware and not hard coded. Also fix the SMPS SISO threshold to 2 (it was 3). Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: BT Coex - no need to send envelopesEmmanuel Grumbach1-25/+0
This was due to a fw remainder of old implementation. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: new BT Coex APIEmmanuel Grumbach1-106/+287
This is the new API for BT Coex. The full functionality will be implemented in further patches. Note: this disables BT Coex for the currently existing fw (-7 version). There is also a new command - the channel inhibition command. This command tells BT what channels to avoid in order to minimise the interaction between BT and WiFi. We can tell BT about 2 channels, primary and secondary. BT will not tune to primary at all and will avoid secondary as much as possible. This also means that we need to track vifs that AP / GO. So rename iwl_mvm_bt_coex_vif_assoc to iwl_mvm_bt_coex_vif_change to better reflect its real meaning. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-10-02iwlwifi: mvm: fix locking in iwl_mvm_bt_rssi_event()Johannes Berg1-6/+3
This will deadlock due to commit 9f34783863bea806 ("iwlwifi: mvm: Implement BT coex notifications"): ============================================= [ INFO: possible recursive locking detected ] 3.5.0 #10 Tainted: G W O --------------------------------------------- kworker/2:1/5214 is trying to acquire lock: (&mvm->mutex){+.+.+.}, at: [<ffffffffa03be23e>] iwl_mvm_bt_rssi_event+0x5e/0x210 [iwlmvm] but task is already holding lock: (&mvm->mutex){+.+.+.}, at: [<ffffffffa03ab2d9>] iwl_mvm_async_handlers_wk+0x49/0x120 [iwlmvm] other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&mvm->mutex); lock(&mvm->mutex); *** DEADLOCK *** Change-Id: I9104f252b34676e2f7ffcd51166f95367e08a4d9 Signed-off-by: Johannes Berg <johannes.berg@intel.com> Reviewed-on: https://gerrit.rds.intel.com/21887 Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Tested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Conflicts: drivers/net/wireless/iwlwifi/mvm/bt-coex.c
2013-10-02iwlwifi: mvm: Implement BT coex notificationsAndrei Otcheretianski1-4/+12
Use beacon statistics notification handler to notify bt coex about rssi changes. Mac80211's mechanism is not used anymore. Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-16iwlwifi: mvm: don't allocate BT_COEX cmd on stackEmmanuel Grumbach1-46/+92
This command will change and be much bigger. Prepare to that by stop allocating on the stack. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-16iwlwifi: mvm: fix the ACK / CTS kill mask upon RSSI eventEmmanuel Grumbach1-0/+2
If a vif's RSSI gets good enough, we can enable reduced Tx power. If so, we need to update the ACK / CTS kill mask accordingly. Since the auditing for the interfaces was bad, we enabled reduced Tx power, but didn't update the ACK / CTS kill mask. This is harmless since the firmware is most likely to discard this setting anyway, but it is a good practice to update it. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-07-16iwlwifi: mvm: better handle several several vifs in BT CoexEmmanuel Grumbach1-18/+4
When there one vif on 5GHz associating, it would clear all the BT Coex constraints. This can't work if there is another vif on 2.4GHz. Fix that. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-25iwlwifi: mvm: add BT-Coex LUT for 1x1 productsEmmanuel Grumbach1-1/+20
1x1 products will need a special LUT. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-06-04iwlwifi: mvm: fix the LUT for BT CoexEmmanuel Grumbach1-1/+1
There was a typo in the Loose LUT for BT Coex. Fix that. Reported-by: Roi Cohen <roi.cohen@intel.com> Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-05-29iwlwifi: mvm: add thermal throttling and CT killEytan Lifshitz1-2/+4
In order to avoid NIC destruction due to high temperature, CT kill will power down the NIC. To avoid this, thermal throttling will decrease throughput to prevent the NIC from reaching the temperature at which CT kill is performed. Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-04iwlwifi: mvm: rename iwl_mvm_new_bt_coex_notifEmmanuel Grumbach1-8/+7
It actually handles a BT coex notification, so rename it to be more self explained. Also, this function can always look at mvm->last_bt_notif provided that the latter is updated on time. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-04iwlwifi: mvm: beautify code in BT CoexEmmanuel Grumbach1-22/+10
The iterators don't need to know what bt_kill_msk means. All they need to know is if reduced Tx power is enabled on an interface or not. So change the member of the iterator to be a bool. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-04iwlwifi: mvm: remove BT Coex constraints upon roaming to A bandEmmanuel Grumbach1-17/+50
When we roam to A band, we don't need to constraint WiFi any more since it is operating on a different band. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-04-04iwlwifi: mvm: implement reduced Tx powerEmmanuel Grumbach1-35/+257
This allows to have better wifi TPT when BT is active under good RSSI conditions. Wifi will have better chance to send Acks and Cts even if BT is active. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-26iwlwifi: mvm: ignore bt_ch_announce module parameterEmmanuel Grumbach1-2/+1
This module parameter isn't and won't be used. So ignore its value and set BT_CH_ANNOUNCE unconditionally. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20iwlwifi: mvm: tune the move to static SMPS due to BT loadEmmanuel Grumbach1-1/+3
We should disable MIMO only if bt_traffic_load goes up to 3. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20iwlwifi: mvm: don't support multi-channel inhibitionEmmanuel Grumbach1-2/+1
This feature is not implemented yet in firmware. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20iwlwifi: mvm: fix the {ack,cts}_kill_mskEmmanuel Grumbach1-7/+7
The masks were wrong. They should be 0xffffffff when SCO, HID or SNIFF profiles are used. They should be 0xffff0000 in any other case (default) to get a bit more throughput when the BT profile allows for it. Fix a debug print on the way. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06iwlwifi: mvm: export last bt_notif through debugfsEmmanuel Grumbach1-0/+3
This will allow to track how BT core updates the driver. This is required to debug the BT Coexistence mechanism. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06iwlwifi: mvm: update SMPS when BT gets activeEmmanuel Grumbach1-0/+52
When BT traffic load gets higher, we want to avoid using the shared antenna. In order to do so, we need to tell the AP that we don't support MIMO any more, or at least not all the time: in short, use the SMPS to achieve this. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06iwlwifi: mvm: handle BT-coex notificationEmmanuel Grumbach1-0/+50
The BT-Coex notification is sent by the fw when there are updates wrt. BT activity. Driver action might be taken based on the info in this notification. For now, update the Ack/Cts_kill_msk if HID / SCO / A2DP profiles are active. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06iwlwifi: mvm: begin basic BT-Coex implementationEmmanuel Grumbach1-0/+242
Send the PRIO table before the calibrations. This table tells the fw what priority to give to what (WiFi / BT) according to events. Send a hardcoded BT_COEX command to the fw to enable basic BT coexistence. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-05 17:11:39 +0300