[PATCH net-next v2] net: airoha: Implement BQL support

[Lorenzo Bianconi]

On Oct 15, Jakub Kicinski wrote:
> On Sat, 12 Oct 2024 11:01:11 +0200 Lorenzo Bianconi wrote:
> > Introduce BQL support in the airoha_eth driver reporting to the kernel
> > info about tx hw DMA queues in order to avoid bufferbloat and keep the
> > latency small.
> 
> TBH I haven't looked at the code again, but when I looked at v1 I was
> surprised you don't have a reset in airoha_qdma_cleanup_tx_queue().
> Are you sure it's okay? It's a common bug not to reset the BQL state
> when queue is purged while stopping the interface.

So far airoha_qdma_cleanup_tx_queue() is called just in airoha_hw_cleanup()
that in turn runs just when the module is removed (airoha_remove()).
Do we need it?

Regards,
Lorenzo
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