On 1/23/23 11:47, Bart Van Assche wrote: > 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. > I think it will be very interesting to discuss this in great detail and come up with the plan. +1 from me. -ck