linux.git/net/mac80211/debugfs_sta.c, branch v6.11

wifi: mac80211: fix spelling typo in comment

2024-01-03T14:34:56+00:00

Fix spelling of "attributes" in a comment.

Reported-by: k2ci 
Signed-off-by: Zheng tan 
Link: https://msgid.link/20240102015418.3673858-1-tanzheng@kylinos.cn
Signed-off-by: Johannes Berg

wifi: mac80211: use wiphy locked debugfs helpers for agg_status

2023-11-27T10:25:01+00:00

The read is currently with RCU and the write can deadlock,
convert both for the sake of illustration.

Make mac80211 depend on cfg80211 debugfs to get the helpers,
but mac80211 debugfs without it does nothing anyway. This
also required some adjustments in ath9k.

Signed-off-by: Johannes Berg

wifi: mac80211: lock wiphy for aggregation debugfs

2023-09-11T09:27:18+00:00

To change aggregation status may call into the driver,
lock the wiphy for this.

Signed-off-by: Johannes Berg

wifi: mac80211: add eht_capa debugfs field

2023-06-19T15:34:55+00:00

Output looks like this:

[root@ct523c-0b29 ~]# cat /debug/ieee80211/wiphy6/netdev\:wlan6/stations/50\:28\:4a\:bd\:f4\:a7/eht_capa
EHT supported
MAC-CAP: 0x82 0x00
PHY-CAP: 0x0c 0x00 0x00 0x00 0x00 0x48 0x00 0x00 0x00
		OM-CONTROL
		MAX-MPDU-LEN: 11454
		242-TONE-RU-GT20MHZ
		NDP-4-EHT-LFT-32-GI
		BEAMFORMEE-80-NSS: 0
		BEAMFORMEE-160-NSS: 0
		BEAMFORMEE-320-NSS: 0
		SOUNDING-DIM-80-NSS: 0
		SOUNDING-DIM-160-NSS: 0
		SOUNDING-DIM-320-NSS: 0
		MAX_NC: 0
		PPE_THRESHOLD_PRESENT
		NOMINAL_PKT_PAD: 0us
		MAX-NUM-SUPP-EHT-LTF: 1
		SUPP-EXTRA-EHT-LTF
		MCS15-SUPP-MASK: 0

		EHT bw <= 80 MHz, max NSS for MCS 8-9: Rx=2, Tx=2
		EHT bw <= 80 MHz, max NSS for MCS 10-11: Rx=2, Tx=2
		EHT bw <= 80 MHz, max NSS for MCS 12-13: Rx=2, Tx=2
		EHT bw <= 160 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
		EHT bw <= 160 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
		EHT bw <= 160 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 8-9: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 10-11: Rx=0, Tx=0
		EHT bw <= 320 MHz, max NSS for MCS 12-13: Rx=0, Tx=0
EHT PPE Thresholds: 0xc1 0x0e 0xe0 0x00 0x00

Signed-off-by: Ben Greear 
Link: https://lore.kernel.org/r/20230517184428.999384-1-greearb@candelatech.com
Signed-off-by: Johannes Berg

wifi: mac80211: Proper mark iTXQs for resumption

2023-01-10T12:24:12+00:00

When a running wake_tx_queue() call is aborted due to a hw queue stop
the corresponding iTXQ is not always correctly marked for resumption:
wake_tx_push_queue() can stops the queue run without setting
@IEEE80211_TXQ_STOP_NETIF_TX.

Without the @IEEE80211_TXQ_STOP_NETIF_TX flag __ieee80211_wake_txqs()
will not schedule a new queue run and remaining frames in the queue get
stuck till another frame is queued to it.

Fix the issue for all drivers - also the ones with custom wake_tx_queue
callbacks - by moving the logic into ieee80211_tx_dequeue() and drop the
redundant @txqs_stopped.

@IEEE80211_TXQ_STOP_NETIF_TX is also renamed to @IEEE80211_TXQ_DIRTY to
better describe the flag.

Fixes: c850e31f79f0 ("wifi: mac80211: add internal handler for wake_tx_queue")
Signed-off-by: Alexander Wetzel 
Link: https://lore.kernel.org/r/20221230121850.218810-1-alexander@wetzel-home.de
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg

wifi: mac80211: Drop support for TX push path

2022-10-10T09:06:14+00:00

All drivers are now using mac80211 internal queues (iTXQs).
Drop mac80211 internal support for the old push path.

Signed-off-by: Alexander Wetzel 
Signed-off-by: Johannes Berg

wifi: mac80211: include link address in debugfs

2022-10-07T13:23:43+00:00

Add the link address to the per-link information, but only if we are
using MLO.

Signed-off-by: Benjamin Berg 
Signed-off-by: Johannes Berg

wifi: mac80211: add API to show the link STAs in debugfs

2022-10-07T13:23:41+00:00

Create debugfs data per-link. For drivers, there is a new operation
link_sta_add_debugfs which will always be called.

For non-MLO, the station directory will be used directly rather than
creating a corresponding subdirectory. As such, non-MLO drivers can
simply continue to create the data from sta_debugfs_add.

Signed-off-by: Benjamin Berg 
[add missing inlines if !CONFIG_MAC80211_DEBUGFS]
Signed-off-by: Johannes Berg

wifi: mac80211: make sta airtime deficit field s32 instead of s64

2022-07-01T08:51:48+00:00

32 bit is more than enough range for the airtime deficit

Signed-off-by: Felix Fietkau 
Acked-by: Toke Høiland-Jørgensen 
Link: https://lore.kernel.org/r/20220625212411.36675-2-nbd@nbd.name
Signed-off-by: Johannes Berg

wifi: mac80211: switch airtime fairness back to deficit round-robin scheduling

2022-07-01T08:51:41+00:00

This reverts commits 6a789ba679d652587532cec2a0e0274fda172f3b and
2433647bc8d983a543e7d31b41ca2de1c7e2c198.

The virtual time scheduler code has a number of issues:
- queues slowed down by hardware/firmware powersave handling were not properly
  handled.
- on ath10k in push-pull mode, tx queues that the driver tries to pull from
  were starved, causing excessive latency
- delay between tx enqueue and reported airtime use were causing excessively
  bursty tx behavior

The bursty behavior may also be present on the round-robin scheduler, but there
it is much easier to fix without introducing additional regressions

Signed-off-by: Felix Fietkau 
Acked-by: Toke Høiland-Jørgensen 
Link: https://lore.kernel.org/r/20220625212411.36675-1-nbd@nbd.name
Signed-off-by: Johannes Berg