On Mon, Oct 19, 2026 at 03:47:55PM +0200, Thomas Hellström wrote:
> > Making the decision right before map seems like a reasonable

> > enhancement, but I can no longer remember off hand if that would
> > cause complications :)
> 
> It was that mellanox ATS thing, right? That's the only case I heard of
> that needed the mapping type decision (or at least a strong hint)
> early.

No, it would work after the fact just mlx5 forms the attachment and
the map approximately at the same time in most important cases.

Also after LPC I've also realized that UIO shares alot of similarity
with ATS, except getting UIO correct on both sides is functionally
required not just a performance optimization :\

Jason

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