linux-stable.git/include/net/mac80211.h, branch v3.16

mac80211: add a single-transaction driver op to switch contexts

2014-05-26T09:04:41+00:00

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 
Signed-off-by: Johannes Berg

mac80211: export the expected throughput

2014-05-21T07:15:16+00:00

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 
Signed-off-by: Antonio Quartulli 
Signed-off-by: Johannes Berg

mac80211: fix csa_counter_offs argument name in docbook

2014-05-19T12:39:34+00:00

The csa_counter_offs was erroneously described as csa_offs in
the docbook section.

This fixes two warnings when making htmldocs (at least):

Warning(include/net/mac80211.h:3428): No description found for parameter 'csa_counter_offs[IEEE80211_MAX_CSA_COUNTERS_NUM]'
Warning(include/net/mac80211.h:3428): Excess struct/union/enum/typedef member 'csa_offs' description in 'ieee80211_mutable_offsets'

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: Handle the CSA counters correctly

2014-05-15T13:01:00+00:00

Make the beacon CSA counters part of ieee80211_mutable_offsets and don't
decrement CSA counters when generating a beacon template. This permits the
driver to offload the CSA counters handling. Since mac80211 updates the probe
responses with the correct counter, the driver should sync the counter's value
with mac80211 using ieee80211_csa_update_counter function.

Signed-off-by: Andrei Otcheretianski 
Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: Provide ieee80211_beacon_get_template API

2014-05-15T13:01:00+00:00

Add a new API ieee80211_beacon_get_template, which doesn't
affect DTIM counter and should be used if the device generates beacon
frames, and new beacon template is needed. In addition set the offsets
to TIM IE for MESH interface.

Signed-off-by: Andrei Otcheretianski 
Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg

mac80211: fix CSA tx queue stopping

2014-05-06T13:10:00+00:00

It was possible for tx queues to be stuck stopped
if AP CSA finalization failed. In that case
neither stop_ap nor do_stop woke the queues up.
This means it was impossible to perform tx at all
until driver was reloaded or a successful CSA was
performed later.

It was possible to solve this in a simpler manner
however this is more robust and future proof
(having multi-vif CSA in mind).

New sdata->csa_block_tx is introduced to keep
track of which interfaces requested tx to be
blocked for CSA. This is required because mac80211
stops all tx queues for that purpose. This means
queues must be awoken only when last tx-blocking
CSA interface is finished.

It is still possible to have tx queues stopped
after CSA failure but as soon as offending
interfaces are stopped from userspace (stop_ap or
ifdown) tx queues are woken up properly.

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

mac80211: set an external flag for TDLS stations

2014-05-05T13:56:02+00:00

Expose a new tdls flag for the public ieee80211_sta struct.
This can be used in some rate control decisions.

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

mac80211: add option to generate CCMP IVs only for mgmt frames

2014-04-25T15:26:15+00:00

Some chips can encrypt managment frames in HW, but
require generated IV in the frame. Add a key flag
that allows us to achieve this.

Signed-off-by: Marek Kwaczynski 
[use BIT(0) to fill that spot, fix indentation]
Signed-off-by: Johannes Berg

mac80211: Update conf_is_ht() to work properly with 5/10MHz channels

2014-04-09T08:56:04+00:00

The channels with 5/10MHz bandwidth are not HT. We have to
reflect this in conf_is_ht() function which returns whether the
particular channel is HT or not.

Signed-off-by: Rostislav Lisovy 
Signed-off-by: Johannes Berg

mac80211: allow reservation of a running chanctx

2014-04-09T08:55:56+00:00

With single-channel drivers, we need to be able to change a running
chanctx if we want to use chanctx reservation.  Not all drivers may be
able to do this, so add a flag that indicates support for it.

Changing a running chanctx can also be used as an optimization in
multi-channel drivers when the context needs to be reserved for future
usage.

Introduce IEEE80211_CHANCTX_RESERVED chanctx mode to mark a channel as
reserved so nobody else can use it (since we know it's going to
change).  In the future, we may allow several vifs to use the same
reservation as long as they plan to use the chanctx on the same
future channel.

Signed-off-by: Luciano Coelho 
Signed-off-by: Johannes Berg