Commit Graph

18 Commits

Author SHA1 Message Date
Johannes Berg
6caffd4f9d iwlwifi: mvm: suppress key error messages in AP mode
In AP mode, don't attempt to program GTKs into the
device, they're used for TX only so not needed and
programming them causes error messages. Also, in
this case and if key programming fails, avoid trying
to remove the key that isn't present later.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-20 12:02:12 +01:00
Johannes Berg
f0c2646af4 iwlwifi: mvm: implement remote wake
With remote wake, the firmware creates a TCP connection
and sends some configurable data on it, until a special
TCP data packet from the server is received that triggers
a wakeup. The configuration is a bit tricky because it is
based on packet pattern matching but this is hidden in
the driver and the exposed API in cfg80211 is just based
on the required TCP connection parameters.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:47:51 +01:00
Emmanuel Grumbach
e3d9e7ce4c iwlwifi: mvm: support IEEE80211_AMPDU_TX_STOP_FLUSH
mac80211 tells us when we need to dump the frames from the
AGG queue instead of releasing them as single MPDUs.
Being able to differentiate between the different cases
(IEEE80211_AMPDU_TX_STOP_*) allows us to handle races better.

When the station is removed, mac80211 asks to flush and
removes the station right away.
This allows to avoid a case where we still have frames in
AGG queues, but the station has been remove already.

Note that we can have frames on the shared queues, but this
is not a problem: the station in the fw will be kept until
all the frames on the shared queues have been drained.
AGG queues are a special case since they are dynamically
allocated.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:47:26 +01:00
Ilan Peer
831e85f3fe iwlwifi: mvm: Add support for additional addresses
Use the number of addresses (max 5) from the NVM
instead of limiting to 2 artificially.

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>
2013-03-06 16:47:23 +01:00
Emmanuel Grumbach
5d158efa55 iwlwifi: mvm: respect disable Tx AGG parameter
We didn't check that we allowed to start Tx AGG. This can
possibly be avoided by a module parameter. Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:46:59 +01:00
Emmanuel Grumbach
410dc5aa59 iwlwifi: a few fixes in license
7000.c was released as GPL only by mistake: it should be
dual licensed - GPL / BSD.
The file that contains the license in the kernel is COPYING
and not LICENSE.GPL.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-03-06 16:46:59 +01:00
Johannes Berg
38a12b5b02 iwlwifi: mvm: fix AP/GO mode station removal
When stations are removed while packets are in the queue,
we drain the queues first, and then remove the stations.
If this happens in AP mode while the interface is removed
the MAC context might be removed from the firmware before
we removed the station(s), resulting in a SYSASSERT 3421.
This is because we remove the MAC context from the FW in
stop_ap(), but only flush the station drain work later in
remove_interface().

Refactor the code a bit to have a common MAC context
removal preparation first to solve this.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-26 22:09:48 +01:00
Johannes Berg
9cc40712a0 iwlwifi: mvm: fix GO powersave client manipulation
All station commands must include a valid MAC ID,
the ID 0 is randomly valid in some cases, but we
must set the ID properly. Do that by passing the
right station and using its mac_id_n_color.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:17:48 +01:00
Johannes Berg
d2931bbd54 iwlwifi: mvm: program DTIM timings properly
For the firmware to know when DTIM beacons arrive
we have to program the DTIM time in TSF and system
time in the MAC context. Since mac80211 now tracks
the different times (on demand), this becomes easy.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:17:38 +01:00
Johannes Berg
b18bf9733c iwlwifi: mvm: fix merge error
The iwlwifi-next tree removed IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC
while the mac80211-next tree removed

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-18 20:16:26 +01:00
John W. Linville
5171f7a0b7 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
Conflicts:
	drivers/net/wireless/iwlwifi/mvm/mac80211.c
2013-02-12 12:51:08 -05:00
Johannes Berg
7a4539736e iwlwifi: mvm: update station when marked associated
In managed mode, the HT/VHT capabilities aren't set when
the station is initially added, so update the station
when it is marked associated. In AP/GO mode, the station
will typically be added with full capabilities today,
but an upcoming change in hostapd may mean a similar
scenario as for managed mode, therefore do the update
unconditionally.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:52:26 +01:00
Johannes Berg
210a544e78 iwlwifi: mvm: don't delay the association until after beacon
If we haven't heard a beacon before we associate we can
still start the association process and set the MAC in
the firmware to associated only after having received a
beacon with DTIM period by reacting to the new change
flag (BSS_CHANGED_DTIM_PERIOD) from mac80211.

This reduces the association time in these cases.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:52:25 +01:00
Johannes Berg
94d2f0ba05 Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next 2013-02-12 16:52:11 +01:00
Emmanuel Grumbach
5360cfb2bc iwlwifi: mvm: use atomic interface iteration to avoid deadlock
Using the non-atomic version creates a dependency between
mac80211's iflist_mtx and mvm->mutex. Use the atomic version
instead which doesn't take iflist_mtx but can't sleep, so
send the HCMD in ASYNC.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-12 16:07:14 +01:00
Johannes Berg
f1e3e05156 mac80211: remove IEEE80211_HW_SCAN_WHILE_IDLE
There are only a few drivers that use HW scan, and
all of those don't need a non-idle transition before
starting the scan -- some don't even care about idle
at all. Remove the flag and code associated with it.

The only driver that really actually needed this is
wl1251 and it can just do it itself in the hw_scan
callback -- implement that.

Acked-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-11 18:45:01 +01:00
John W. Linville
3549c6b195 Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next
Fixed-up drivers/net/wireless/iwlwifi/mvm/mac80211.c to change change
IEEE80211_HW_NEED_DTIM_PERIOD to IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC
as requested by Johannes Berg. -- JWL

Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-02-08 14:39:54 -05:00
Johannes Berg
8ca151b568 iwlwifi: add the MVM driver
Newer firmware revisions have a completely new
firmware API. This is the new driver for this
new API.

I've listed the people who directly contributed
code, but many others from various teams have
contributed in other ways.

Cc: Alexander Bondar <alexander.bondar@intel.com>
Cc: Amit Beka <amit.beka@intel.com>
Cc: Amnon Paz <amnonx.paz@intel.com>
Cc: Assaf Krauss <assaf.krauss@intel.com>
Cc: David Spinadel <david.spinadel@intel.com>
Cc: Dor Shaish <dor.shaish@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Cc: Eytan Lifshitz <eytan.lifshitz@intel.com>
Cc: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2013-02-01 11:27:15 +01:00