On Fri, 21 Apr 2023 15:31:04 +0800 Xuan Zhuo wrote: > I am not particularly familiar with dma-bufs. I want to know if this mechanism > can solve the problem of virtio-net. > > I saw this framework, allowing the driver do something inside the ops of > dma-bufs. > > If so, is it possible to propose a new patch based on dma-bufs? I haven't looked in detail, maybe Olek has? AFAIU you'd need to rework uAPI of XSK to allow user to pass in a dma-buf region rather than just a user VA. So it may be a larger effort but architecturally it may be the right solution.