linux.git/net/mac80211/debugfs.c, branch v4.11

mac80211: check for allocation failure in debugfs code

2017-02-08T09:05:07+00:00

kmalloc() can fail.  Also let's move the allocation out of the
declaration block so it's easier to read.

Fixes: 4a5eccaa9350 ("mac80211: Show pending txqlen in debugfs.")
Signed-off-by: Dan Carpenter 
Signed-off-by: Johannes Berg

mac80211: add back lost debugfs files

2017-02-07T09:40:50+00:00

Somehow these files were never present or lost, but the code
is there and they seem somewhat useful, so add them back.

Signed-off-by: Johannes Berg

mac80211: Show pending txqlen in debugfs.

2016-12-13T15:05:12+00:00

Could be useful for debugging memory consumption issues,
and perhaps power-save as well.

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

mac80211: add a HW flag for supporting HW TX fragmentation

2016-10-19T10:12:44+00:00

Currently mac80211 determines whether HW does fragmentation
by checking whether the set_frag_threshold callback is set
or not.
However, some drivers may want to set the HW fragmentation
capability depending on HW generation.
Allow this by checking a HW flag instead of checking the
callback.

Signed-off-by: Sara Sharon 
[added the flag to ath10k and wlcore]
Signed-off-by: Luca Coelho 
Signed-off-by: Johannes Berg

mac80211: Export fq memory limit information in debugfs

2016-09-30T11:29:31+00:00

Add memory limit, usage and overlimit counter to per-PHY 'aqm' debugfs
file.

Signed-off-by: Toke Høiland-Jørgensen 
Signed-off-by: Johannes Berg

mac80211: allow driver to handle packet-loss mechanism

2016-09-15T14:46:20+00:00

Based on consecutive msdu failures, mac80211 triggers CQM packet-loss
mechanism. Drivers like ath10k that have its own connection monitoring
algorithm, offloaded to firmware for triggering station kickout. In case
of station kickout, driver will report low ack status by mac80211 API
(ieee80211_report_low_ack).

This flag will enable the driver to completely rely on firmware events
for station kickout and bypass mac80211 packet loss mechanism.

Signed-off-by: Rajkumar Manoharan 
Signed-off-by: Johannes Berg

mac80211: Re-structure aqm debugfs output and keep CoDel stats per txq

2016-09-13T06:20:16+00:00

Currently the 'aqm' stats in mac80211 only keeps overlimit drop stats,
not CoDel stats. This moves the CoDel stats into the txqi structure to
keep them per txq in order to show them in debugfs.

In addition, the aqm debugfs output is restructured by splitting it up
into three files: One global per phy, one per netdev and one per
station, in the appropriate directories. The files are all called aqm,
and are only created if the driver supports the wake_tx_queue op (rather
than emitting an error on open as previously).

Signed-off-by: Toke Høiland-Jørgensen 
Signed-off-by: Johannes Berg

mac80211: add debug knobs for fair queuing

2016-06-09T09:43:38+00:00

This adds a debugfs entry to read and modify some fq parameters.

This makes it easy to debug, test and experiment.

Signed-off-by: Michal Kazior 
[remove module parameter for now]
Signed-off-by: Johannes Berg

mac80211: add A-MSDU tx support

2016-04-06T11:18:19+00:00

Requires software tx queueing and fast-xmit support. For good
performance, drivers need frag_list support as well. This avoids the
need for copying data of aggregated frames. Running without it is only
supported for debugging purposes.

To avoid performance and packet size issues, the rate control module or
driver needs to limit the maximum A-MSDU size by setting
max_rc_amsdu_len in struct ieee80211_sta.

Signed-off-by: Felix Fietkau 
[fix locking issue]
Signed-off-by: Johannes Berg

mac80211: enable collecting station statistics per-CPU

2016-04-06T11:18:19+00:00

If the driver advertises the new HW flag USE_RSS, make the
station statistics on the fast-rx path per-CPU. This will
enable calling the RX in parallel, only hitting locking or
shared cachelines when the fast-RX path isn't available.

Signed-off-by: Johannes Berg