Re: [RFC PATCH 3/3] net: ethernet: ti: cpsw: add XDP support

[Jakub Kicinski]

On Thu, 18 Apr 2019 12:40:10 +0300, Ivan Khoronzhuk wrote:
> >work?  The stack's TX ring has a lock, and can be used from any CPU,
> >while XDP TX rings are per-PCU, no?  
> Yes and no.
> am572 has more queues then CPU num, How I can choose tx queue not based on CPU
> num? It's always shared and has to have lock, and cpdma is done in this way.

Oh, I see, you already have another lock.

> Here another thing bothering me, I send it to queue 0 always, instead of
> taking cpu num. Not sure about this, but I expect to have some tx queue
> not bind to cpu and didn't find a way it can be changed dynamically in
> redirect.

Not sure I understand :)