wifi: mt76: add PS buffering support for HW-managed TIM drivers

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Add MT_DRV_HW_PS_BUFFERING flag for drivers where firmware controls
the TIM bit based on buffered frames. Instead of blocking all TX to
PS stations (which starves firmware and prevents TIM from being set),
allow limited frame delivery using AQL pending airtime as the
throttle. Replenish the firmware buffer on TX completion.

Add mt76_sta_ps_transition() helper for drivers to call from MCU
PS sync events.

Link: https://patch.msgid.link/20260801145334.1166751-1-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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This commit is contained in:

Felix Fietkau 2026-08-01 14:53:25 +00:00

parent 404c4e564f

commit a547b414bf

3 changed files with 75 additions and 6 deletions

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3

drivers/net/wireless/mediatek/mt76/mt76.h

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1

drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.h

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77

drivers/net/wireless/mediatek/mt76/tx.c

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