On Mon, Jun 9, 2025 at 12:32 PM Jakub Kicinski <kuba@xxxxxxxxxx> wrote: > > On Mon, 9 Jun 2025 13:32:17 +0900 Byungchul Park wrote: > > To simplify struct page, the page pool members of struct page should be > > moved to other, allowing these members to be removed from struct page. > > > > Introduce a network memory descriptor to store the members, struct > > netmem_desc, and make it union'ed with the existing fields in struct > > net_iov, allowing to organize the fields of struct net_iov. > > What's the intended relation between the types? > > netmem_ref exists to clearly indicate that memory may not be readable. > Majority of memory we expect to allocate from page pool must be > kernel-readable. What's the plan for reading the "single pointer" > memory within the kernel? > > I think you're approaching this problem from the easiest and least > relevant direction. Are you coordinating with David Howells? FWIW I did point David to this work in a tangentially related thread: https://lore.kernel.org/netdev/CAHS8izMMU8QZrvXRiDjqwsBg_34s+dhvSyrU7XGMBuPF6eWyTA@xxxxxxxxxxxxxx/ I think yes it would be good to get a reviewed-by or acked-by from Matthew or David to show that this approach is in line with their plans?
