Commit Graph

18 Commits

Author SHA1 Message Date
Emmanuel Grumbach
03e304e4e7 iwlwifi: mvm: don't allocate BT_COEX cmd on stack
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>
2013-07-16 16:13:28 +03:00
Emmanuel Grumbach
8e0366f9c7 iwlwifi: mvm: fix the ACK / CTS kill mask upon RSSI event
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>
2013-07-16 16:13:27 +03:00
Emmanuel Grumbach
41069b4631 iwlwifi: mvm: better handle several several vifs in BT Coex
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>
2013-07-16 16:13:27 +03:00
Emmanuel Grumbach
e715c3a939 iwlwifi: mvm: add BT-Coex LUT for 1x1 products
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>
2013-06-25 12:11:31 +02:00
Emmanuel Grumbach
6767583175 iwlwifi: mvm: fix the LUT for BT Coex
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>
2013-06-04 13:12:55 +02:00
Eytan Lifshitz
9ee718aa92 iwlwifi: mvm: add thermal throttling and CT kill
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>
2013-05-29 09:03:18 +02:00
Emmanuel Grumbach
d37cac98ab iwlwifi: mvm: rename iwl_mvm_new_bt_coex_notif
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>
2013-04-03 22:49:55 +02:00
Emmanuel Grumbach
9e511c3135 iwlwifi: mvm: beautify code in BT Coex
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>
2013-04-03 22:49:53 +02:00
Emmanuel Grumbach
9166b1eeb7 iwlwifi: mvm: remove BT Coex constraints upon roaming to A band
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>
2013-04-03 22:49:12 +02:00
Emmanuel Grumbach
2b76ef1308 iwlwifi: mvm: implement reduced Tx power
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>
2013-04-03 22:49:12 +02:00
Emmanuel Grumbach
cf69d757a8 iwlwifi: mvm: ignore bt_ch_announce module parameter
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>
2013-03-26 10:32:37 +01:00
Emmanuel Grumbach
b926926234 iwlwifi: mvm: tune the move to static SMPS due to BT load
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>
2013-03-20 14:17:12 +01:00
Emmanuel Grumbach
a77feb5d46 iwlwifi: mvm: don't support multi-channel inhibition
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>
2013-03-20 14:17:06 +01:00
Emmanuel Grumbach
5b7e662ba7 iwlwifi: mvm: fix the {ack,cts}_kill_msk
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>
2013-03-20 14:15:12 +01:00
Emmanuel Grumbach
1094234284 iwlwifi: mvm: export last bt_notif through debugfs
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>
2013-03-06 16:48:00 +01:00
Emmanuel Grumbach
7da052b818 iwlwifi: mvm: update SMPS when BT gets active
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>
2013-03-06 16:47:59 +01:00
Emmanuel Grumbach
f421f9c3b2 iwlwifi: mvm: handle BT-coex notification
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>
2013-03-06 16:47:59 +01:00
Emmanuel Grumbach
931d416049 iwlwifi: mvm: begin basic BT-Coex implementation
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>
2013-03-06 16:47:58 +01:00