linux-toradex.git/net/mac80211/debugfs_netdev.c, branch v3.12.45

mac80211: don't check netdev state for debugfs read/write

2014-07-17T13:04:38+00:00

commit 923eaf367206e01f22c97aee22300e332d071916 upstream.

Doing so will lead to an oops for a p2p-dev interface, since it has
no netdev.

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

cfg80211/mac80211: use cfg80211 wdev mutex in mac80211

2013-05-24T22:02:16+00:00

Using separate locks in cfg80211 and mac80211 has always
caused issues, for example having to unlock in places in
mac80211 to call cfg80211, which even needed a framework
to make cfg80211 calls after some functions returned etc.

Additionally, I suspect some issues people have reported
with the cfg80211 state getting confused could be due to
such issues, when cfg80211 is asking mac80211 to change
state but mac80211 is in the process of telling cfg80211
that the state changed (in another way.)

Signed-off-by: Johannes Berg

mac80211: Move mesh estab_plinks outside mesh_stats debug group

2013-05-24T21:18:42+00:00

As estab_plinks is not a statistics member, don't show its debug information
along with other mesh stat members

Signed-off-by: Ashok Nagarajan 
Signed-off-by: Johannes Berg

mac80211: add beacon stats to debugfs

2013-04-08T07:16:54+00:00

Beacon-timeout and number of beacon loss events.

Signed-off-by: Ben Greear 
Signed-off-by: Johannes Berg

mac80211: move sdata debugfs dir to vif

2013-03-18T19:10:04+00:00

There is need create driver own per interface debugfs files. This is
currently done by drv_{add,remove}_interface_debugfs() callbacks. But it
is possible that after we remove interface from the driver (i.e.
on suspend) we call drv_remove_interface_debugfs() function. Fixing this
problem will require to add call drv_{add,remove}_interface_debugfs()
anytime we create and remove interface in mac80211. So it's better to
add debugfs dir dentry to vif structure to allow to create/remove
custom debugfs driver files on drv_{add,remove}_interface().

Signed-off-by: Stanislaw Gruszka 
Signed-off-by: Johannes Berg

mac80211: mesh power save basics

2013-02-04T17:57:47+00:00

Add routines to
- maintain a PS mode for each peer and a non-peer PS mode
- indicate own PS mode in transmitted frames
- track neighbor STAs power modes
- buffer frames when neighbors are in PS mode
- add TIM and Awake Window IE to beacons
- release frames in Mesh Peer Service Periods

Add local_pm to sta_info to represent the link-specific power
mode at this station towards the remote station. When a peer
link is established, use the default power mode stored in mesh
config. Update the PS status if the peering status of a neighbor
changes.
Maintain a mesh power mode for non-peer mesh STAs. Set the
non-peer power mode to active mode during peering. Authenticated
mesh peering is currently not working when either node is
configured to be in power save mode.

Indicate the current power mode in transmitted frames. Use QoS
Nulls to indicate mesh power mode transitions.
For performance reasons, calls to the function setting the frame
flags are placed in HWMP routing routines, as there the STA
pointer is already available.

Add peer_pm to sta_info to represent the peer's link-specific
power mode towards the local station. Add nonpeer_pm to
represent the peer's power mode towards all non-peer stations.
Track power modes based on received frames.

Add the ps_data structure to ieee80211_if_mesh (for TIM map, PS
neighbor counter and group-addressed frame buffer).

Set WLAN_STA_PS flag for STA in PS mode to use the unicast frame
buffering routines in the tx path. Update num_sta_ps to buffer
and release group-addressed frames after DTIM beacons.

Announce the awake window duration in beacons if in light or
deep sleep mode towards any peer or non-peer. Create a TIM IE
similarly to AP mode and add it to mesh beacons. Parse received
Awake Window IEs and check TIM IEs for buffered frames.

Release frames towards peers in mesh Peer Service Periods. Use
the corresponding trigger frames and monitor the MPSP status.
Append a QoS Null as trigger frame if neccessary to properly end
the MPSP. Currently, in HT channels MPSPs behave imperfectly and
show large delay spikes and frame losses.

Signed-off-by: Marco Porsch 
Signed-off-by: Ivan Bezyazychnyy 
Signed-off-by: Mike Krinkin 
Signed-off-by: Max Filippov 
Signed-off-by: Johannes Berg

mac80211: convert to channel definition struct

2012-11-26T11:42:59+00:00

Convert mac80211 (and where necessary, some drivers a
little bit) to the new channel definition struct.

This will allow extending mac80211 for VHT, which is
currently restricted to channel contexts since there
are no drivers using that which makes it easier. As
I also don't care about VHT for drivers not using the
channel context API, I won't convert the previous API
to VHT support.

Signed-off-by: Johannes Berg

mac80211: add debugfs file for HW queues

2012-11-09T16:26:41+00:00

Add a debugfs file showing which HW queues were
allocated to a virtual interface, including the
CAB queue for AP interfaces.

Change-Id: I486924e961b6ad6785a79db09620919ee644e703
Signed-off-by: Johannes Berg

mac80211: use kstrtoull return value

2012-11-07T17:01:41+00:00

If kstrtoull() returns an error code (a value
smaller than zero), use it since it can be an
error other than -EINVAL.

Signed-off-by: Johannes Berg

mac80211: fix race in TKIP MIC test debugfs file

2012-11-07T17:01:39+00:00

Accessing sdata->vif.bss_conf.bssid without any
protection here is racy, use u.mgd.associated
instead and lock the correct mutex for it.

Signed-off-by: Johannes Berg