[LSF/MM/BPF proposal]: Physr discussion

[Bart Van Assche]

On 1/23/23 05:44, Jason Gunthorpe wrote:
> I've gone from quite a different starting point - I've been working
> DMA API upwards, so what does the dma_map_XX look like, what APIs do
> we need to support the dma_map_ops implementations to iterate/etc, how
> do we form and return the dma mapped list, how does P2P, with all the
> checks, actually work, etc. These help inform what we want from the
> "phyr" as an API.

I'm interested in this topic. I'm wondering whether eliminating 
scatterlists could help to make the block layer faster.

Thanks,

Bart.