linux-toradex.git/net/mac80211/sta_info.h, branch v3.4.2

mac80211: fix mesh airtime link metric estimating

2012-03-06T20:16:17+00:00

Airtime link metric estimation was broken in HT mesh, use
cfg80211_calculate_bitrate to get the right rate value.

Also factor out tx rate copying from sta_set_sinfo().

Signed-off-by: Thomas Pedersen 
Reviewed-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: use compare_ether_addr on MAC addresses instead of memcmp

2012-03-05T20:38:31+00:00

Because of the constant size and guaranteed 16 bit alignment, the inline
compare_ether_addr function is much cheaper than calling memcmp.

Signed-off-by: Felix Fietkau 
Acked-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: call rate control only after init

2012-02-06T20:35:11+00:00

There are situations where we don't have the
necessary rate control information yet for
station entries, e.g. when associating. This
currently doesn't really happen due to the
dummy station handling; explicitly disabling
rate control when it's not initialised will
allow us to remove dummy stations.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: remove dummy STA support

2012-02-06T19:50:37+00:00

The dummy STA support was added because I didn't
want to change the driver API at the time. Now
that we have state transitions triggering station
add/remove in the driver, we only call add once a
station reaches ASSOCIATED, so we can remove the
dummy station stuff again.

While at it, tighten the RX check and accept only
port control (EAP) frames from the AP station if
it's not associated yet -- in other cases there's
no race.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: add sta_state callback

2012-02-06T19:48:24+00:00

(based on Eliad's patch)

Add a callback to notify the low-level driver whenever
the state of a station changes. The driver is only
notified when the station is actually in the mac80211
hash table, not for pre-insert state transitions.

To allow the driver to replace sta_add/remove calls
with this, call extra transitions with the NOTEXIST
state.

This callback can fail, so we need to be careful in
handling it when a station is inserted, particularly
in the IBSS case where we still keep the station entry
around for mac80211 purposes.

Signed-off-by: Eliad Peller 
Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: add NOTEXIST station state

2012-02-06T19:48:24+00:00

This will be used by drivers later if they
need to have stations inserted all the time,
in mac80211 has no purpose, is never used
and sta_state starts out in NONE.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

mac80211: station state transition error handling

2012-01-30T20:41:25+00:00

In the future, when we start notifying drivers,
state transitions could potentially fail. To make
it easier to distinguish between programming bugs
and driver failures:
 * rename sta_info_move_state() to
   sta_info_pre_move_state() which can only be
   called before the station is inserted (and
   check this with a new station flag).
 * rename sta_info_move_state_checked() to just
   plain sta_info_move_state(), as it will be
   the regular function that can fail for more
   than just one reason (bad transition or an
   error from the driver)

This makes the programming model easier -- one of
the functions can only be called before insertion
and can't fail, the other can fail.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville

cfg80211: Return beacon loss count in station

2011-12-19T19:34:13+00:00

If station info contains a beacon loss count, return
it to userspace.

Signed-off-by: Paul Stewart 
Signed-off-by: John W. Linville

mac80211: split addba retries in time

2011-12-19T19:31:37+00:00

  Currently code allows three (HT_AGG_MAX_RETRIES) unanswered addba
requests. When this limit is reached aggregation is turned off for
given TID permanently. This doesn't seem right: three requests is
not that much, some 'blackout' can happen, but effect of it affects
whole connection indefinitely.
  This patch increases number of retries to 15. Also, when there have
been 3 or more retries it splits further retries apart by 15 seconds
instead of sending them in very short period of time.

Signed-off-by: Nikolay Martynov 
Signed-off-by: John W. Linville

mac80211: make address arguments to sta_info_alloc const

2011-12-15T19:46:34+00:00

No real changes, just note that they are const.

Signed-off-by: Johannes Berg 
Signed-off-by: John W. Linville