wifi: mt76: mt7996: fix MLD ID in MAC TXD and HIF TXP

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Problem:
MCU command timeout while the firmware state is normal, and the
firmware keeps showing the error log "ERROR!! NO PAUSE...".

Root cause:
If the MLD_ID field in the TXD is neither the primary link id nor the
secondary link id, it may lead to a firmware busy loop when the third
link is in power saving mode.

Remap frames directed to a third link to the primary link wcid. Since
TX status events and txfree completions carry the wcid the firmware
saw, use the remapped wcid for packet id tracking and non-AQL packet
accounting as well, while the frame keeps its original link context
for addressing, band and OMAC selection.

Fixes: 85cd5534a3 ("wifi: mt76: mt7996: use correct link_id when filling TXD and TXP")
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Link: https://patch.msgid.link/20260722082610.2699628-3-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

...

This commit is contained in:

Peter Chiu 2026-07-22 08:25:55 +00:00 • committed by Felix Fietkau

parent 86897f1066

commit ce35ecffc9

3 changed files with 31 additions and 1 deletions

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29

drivers/net/wireless/mediatek/mt76/mt7996/mac.c

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2

drivers/net/wireless/mediatek/mt76/mt7996/main.c

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1

drivers/net/wireless/mediatek/mt76/mt7996/mt7996.h

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