linux-toradex.git/net/mac80211/iface.c, branch v4.6-rc1

mac80211: expose txq queue depth and size to drivers

2016-02-24T08:04:30+00:00

This will allow drivers to make more educated
decisions whether to defer transmission or not.

Relying on wake_tx_queue() call count implicitly
was not possible because it could be called
without queued frame count actually changing on
software tx aggregation start/stop code paths.

It was also not possible to know how long
byte-wise queue was without dequeueing.

Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

mac80211: fix txq queue related crashes

2016-02-24T08:04:26+00:00

The driver can access the queue simultanously
while mac80211 tears down the interface. Without
spinlock protection this could lead to corrupting
sk_buff_head and subsequently to an invalid
pointer dereference.

Fixes: ba8c3d6f16a1 ("mac80211: add an intermediate software queue implementation")
Signed-off-by: Michal Kazior 
Signed-off-by: Johannes Berg

mac80211: process and save VHT MU-MIMO group frame

2016-01-14T10:13:10+00:00

The Group ID Management frame is an Action frame of
category VHT. It is transmitted by the AP to assign
or change the user position of a STA for one or more
group IDs.
Process and save the group membership data. Notify
underlying driver of changes.

Signed-off-by: Sara Sharon 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: don't teardown sdata on sdata stop

2015-12-02T21:27:27+00:00

Interfaces are being initialized (setup) on addition,
and torn down on removal.

However, p2p device is being torn down when stopped,
resulting in the next p2p start operation being done
on uninitialized interface.

Solve it by calling ieee80211_teardown_sdata() only
on interface removal (for the non-netdev case).

Signed-off-by: Eliad Peller 
Signed-off-by: Emmanuel Grumbach 
[squashed in fix to call teardown after unregister]
Signed-off-by: Johannes Berg

mac80211: ensure we don't update tx power on a non-running sdata

2015-11-20T10:38:50+00:00

We can't update the Tx power on the device unless it is
running.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=101521.

Cc: stable@vger.kernel.org
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: make enable_qos parameter to ieee80211_set_wmm_default()

2015-11-03T09:55:55+00:00

The function currently determines this value, for use in bss_info.qos,
based on the interface type itself. Make it a parameter instead and
set it with the same logic for now.

Signed-off-by: Johannes Berg

mac80211: remove PM-QoS listener

2015-10-14T16:04:08+00:00

As this API has never really seen any use and most drivers don't
ever use the value derived from it, remove it.

Change the only driver using it (rt2x00) to simply use the DTIM
period instead of the "max sleep" time.

Signed-off-by: Johannes Berg

mac80211: process skb_queue while scanning in HW

2015-09-22T13:21:20+00:00

Queued frames aren't processed during scan, which results in an inability
to complete the BA session establishment until the scan ends. Since we
can't tx frames until the BA agreement setup is complete, it might result
in a very large latency during scan.
Fix this by allowing to process queued skbs while scanning in HW. This
should be ok since the devices which support hw scan should be able
to handle tx/rx while scanning.
During SW scan, mac80211 drops any txed frames besides probes and NDPs,
so it is still needed to delay processing of the queued frames till the
SW scan is done.

Signed-off-by: Andrei Otcheretianski 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg

mac80211: add rate mask logic for vht rates

2015-08-14T15:49:51+00:00

Define rc_rateidx_vht_mcs_mask array and rate_idx_match_vht_mcs_mask()
method in order to apply mcs mask for vht rates

Signed-off-by: Lorenzo Bianconi 
Signed-off-by: Johannes Berg

mac80211: TDLS: handle chan-switch in RTNL locked work

2015-07-17T13:40:15+00:00

Move TDLS channel-switch Rx handling into an RTNL locked work. This is
required to add proper regulatory checking to incoming channel-switch
requests.
Queue incoming requests in a dedicated skb queue and handle the request
in a device-specific work to avoid deadlocking on interface removal.

Signed-off-by: Arik Nemtsov 
Signed-off-by: Emmanuel Grumbach 
Signed-off-by: Johannes Berg