linux-stable.git/net/mac80211/debugfs.c, branch v4.16.7

mac80211: add ieee80211_hw flag for QoS NDP support

2018-03-21T09:56:18+00:00

Commit 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing") added an
argument qos_ok to ieee80211_nullfunc_get to support QoS NDP. Despite
the claim in the commit log "Change all the drivers to *not* allow
QoS NDP for now, even though it looks like most of them should be OK
with that", this commit enables QoS NDP in response to beacons (see
change to mlme.c:ieee80211_send_nullfunc), causing ath9k_htc to lose
IP connectivity. See:
https://patchwork.kernel.org/patch/10241109/
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=891060

Introduce a hardware flag to allow such buggy drivers to override the
correct default behaviour of mac80211 of sending QoS NDP packets.

Signed-off-by: Ben Caradoc-Davies 
Signed-off-by: Johannes Berg

Revert "mac80211: Add airtime account and scheduling to TXQs"

2017-12-19T09:12:26+00:00

This reverts commit b0d52ad821843a6c5badebd80feef9f871904fa6.

We need to revert the TXQ scheduling API due to conflicts
with a new driver, and this depends on that API.

Signed-off-by: Johannes Berg

mac80211: Add airtime account and scheduling to TXQs

2017-12-11T11:40:24+00:00

This adds airtime accounting and scheduling to the mac80211 TXQ
scheduler. A new hardware flag, AIRTIME_ACCOUNTING, is added that
drivers can set if they support reporting airtime usage of
transmissions. When this flag is set, mac80211 will expect the actual
airtime usage to be reported in the tx_time and rx_time fields of the
respective status structs.

When airtime information is present, mac80211 will schedule TXQs
(through ieee80211_next_txq()) in a way that enforces airtime fairness
between active stations. This scheduling works the same way as the ath9k
in-driver airtime fairness scheduling.

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

mac80211: enable TDLS peer buffer STA feature

2017-12-11T11:16:05+00:00

Allow drivers to set the buffer station extended capability
for TDLS links, with a new hardware flag indicating this.

Signed-off-by: Yingying Tang 
[change commit log/documentation wording]
Signed-off-by: Johannes Berg

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