wifi: mt76: check txfree done event on the WED hw path

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Check the txfree done event DW1 bit 15 when WED is enabled, to avoid
the driver reading a txfree done event before WED has finished reading
it. No need to check this flag on WED v2, otherwise SER will occur.

The bit position was previously defined as MT_DMA_CTL_BURST, which is
unused; rename it to match its function on the txfree ring.

Fixes: 83eafc9251 ("wifi: mt76: mt7996: add wed tx support")
Signed-off-by: Rex Lu <rex.lu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Link: https://patch.msgid.link/20260722082610.2699628-2-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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Rex Lu 2026-07-22 08:25:54 +00:00 • committed by Felix Fietkau

parent dd59a6126a

commit 3310e71a74

2 changed files with 10 additions and 1 deletions

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9

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

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2

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

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