[][kernel][mt7988][eth][fix TDMA Tx monitor]

Fix TDMA Tx monitor.
The original TDMA Tx monitor only checks DMA FSM and status.
While this may report some false alarm since DMA might be busy with the
same FSM for a long time.

To mitigate this false alarm, check PSE IQ count is changing or not.
If PSE IQ count and DMA FSM is always the same, it should be DMA hang.


Change-Id: I7e55df44fa83f35b0cabfc6ad33a17c67125b319
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7711017
1 file changed