linux-toradex.git/net/mac80211/mesh_sync.c, branch v4.4.51

mac80211: move mesh related station fields to own struct

2015-07-17T13:38:06+00:00

There are now a fairly large number of mesh fields that really
aren't needed in any other modes; move those into their own
structure and allocate them separately.

Signed-off-by: Johannes Berg

mac80211: remove BUG_ON usage

2014-04-29T15:59:27+00:00

These BUG_ON statements should never trigger, but in the unlikely
event that somebody does manage don't stop everything but simply
exit the code path with an error.

Leave the one BUG_ON where changing it would result in a NULL
pointer dereference.

Signed-off-by: Johannes Berg

mac80211: update adjusting TBTT bit in beacon

2013-12-16T13:21:22+00:00

This regression was introduced in "mac80211: cache mesh
beacon".

mesh_sync_offset_adjust_tbtt()  was assuming that the
beacon would be rebuilt in every single pre-tbtt
interrupt, but now the beacon update happens on the
workqueue, and it must be ready for immediate delivery to
the driver.

Save a pointer to the meshconf IE in the beacon_data (this
works because both the IE pointer and beacon buffer are
protected by the same rcu_{dereference,assign_pointer}())
for quick updates during pre-tbtt. This is faster and a
little prettier than iterating over the elements to find
the meshconf IE every time.

Signed-off-by: Thomas Pedersen 
Signed-off-by: Johannes Berg

mac80211: mesh: only get tsf if we need it

2013-12-02T10:51:52+00:00

The local TSF timer is used to compute the timing offset between
mesh peers on beacon reception.  However, asking the device for
the TSF is not very accurate, so we prefer to use rx->mactime
if available.  In the latter case, calling drv_get_tsf() just
adds more delay into the RX path, so skip it if we can.

Signed-off-by: Bob Copeland 
Signed-off-by: Johannes Berg

mac80211: clean up mesh code

2013-02-15T14:46:37+00:00

There's various code with strange indentation,
questionable loop and locking constructs, etc.

The bigger change is moving the "sdata" argument
to the first argument of all functions, like all
other mac80211 functions that have one.

Signed-off-by: Johannes Berg

mac80211: fix for mesh sync to indicate TBTT adjustment

2012-11-30T11:41:46+00:00

Currently the mesh sync code checks, whether peers indicate TBTT adjustment,
but it never sets the corresponding flag itself.

By setting ifmsh->tbtt_adjusting to true, it will set the corresponding field
in the mesh configuration IE of own beacons.
This indication will be set in the current beacon. The TBTT adjustment will be
performed afterwards, affecting the next beacon. Thus, the first beacon with
stable TBTT will not indicate adjustment anymore and peers will continue
tracking the new offset.

Signed-off-by: Marco Porsch 
Signed-off-by: Johannes Berg

mac80211: move Mesh Capability field definition to ieee80211.h

2012-11-26T10:35:21+00:00

Signed-off-by: Marco Porsch 
[prefix with IEEE80211_]
Signed-off-by: Johannes Berg

mac80211: support RX_FLAG_MACTIME_END

2012-11-13T20:43:55+00:00

Allow drivers to indicate their mactime is at RX completion and adjust
for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to
RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by
Johannes Berg.

Signed-off-by: Thomas Pedersen 
[fix docs, atheros drivers]
Signed-off-by: Johannes Berg

mac80211: remove unimplemented mesh vendor sync

2012-10-18T07:01:56+00:00

There's no vendor-specific mesh sync implemented
and there don't need to be dummy handlers that
only print messages, so remove that code. While
at it, also constify the mesh sync ops.

Signed-off-by: Johannes Berg

mac80211: call drv_get_tsf() in sleepable context

2012-10-08T19:06:02+00:00

The call to drv_get/set_tsf() was put on the workqueue to perform tsf
adjustments since that function might sleep. However it ended up inside
a spinlock, whose critical section must be atomic. Do tsf adjustment
outside the spinlock instead, and get rid of a warning.

Signed-off-by: Thomas Pedersen 
Signed-off-by: John W. Linville