Christoph Hellwig
2023-Jul-13 11:15 UTC
[PATCH vhost v11 05/10] virtio_ring: introduce virtqueue_dma_dev()
On Mon, Jul 10, 2023 at 11:42:32AM +0800, Xuan Zhuo wrote:> Added virtqueue_dma_dev() to get DMA device for virtio. Then the > caller can do dma operation in advance. The purpose is to keep memory > mapped across multiple add/get buf operations.This is just poking holes into the abstraction..
Michael S. Tsirkin
2023-Jul-13 14:51 UTC
[PATCH vhost v11 05/10] virtio_ring: introduce virtqueue_dma_dev()
On Thu, Jul 13, 2023 at 04:15:16AM -0700, Christoph Hellwig wrote:> On Mon, Jul 10, 2023 at 11:42:32AM +0800, Xuan Zhuo wrote: > > Added virtqueue_dma_dev() to get DMA device for virtio. Then the > > caller can do dma operation in advance. The purpose is to keep memory > > mapped across multiple add/get buf operations. > > This is just poking holes into the abstraction..More specifically? -- MST