On 12/20/24 22:14, Jakub Kicinski wrote:
On Tue, 17 Dec 2024 16:37:29 -0800 David Wei wrote:
struct dmabuf_genpool_chunk_owner {
- /* Offset into the dma-buf where this chunk starts. */
- unsigned long base_virtual;
+ struct net_iov_area area;
+ struct net_devmem_dmabuf_binding *binding;
/* dma_addr of the start of the chunk. */
dma_addr_t base_dma_addr;
Is there a good reason why dma addr is not part of net_iov_area?
net_iov_area is one chunk of continuous address space.
Instead of looping over pages in io_zcrx_map_area we could map
the whole thing in one go.
It's not physically contiguous. The registration API takes
contig user addresses, but that's not a hard requirement
either.
--
Pavel Begunkov
