On Mon, 2023-12-11 at 09:00 -0800, Jakub Kicinski wrote: > On Sat, 9 Dec 2023 20:23:09 +0100 Lorenzo Bianconi wrote: > > Are we going to use these page_pools just for virtual devices (e.g. veth) or > > even for hw NICs? If we do not bound the page_pool to a netdevice I think we > > can't rely on it to DMA map/unmap the buffer, right? > > Right, I don't think it's particularly useful for HW NICs. > Maybe for allocating skb heads? We could possibly kill > struct page_frag_1k and use PP page / frag instead. > But not sure how Eric would react :) Side note here: we have a dedicated kmem_cache for typical skb head allocation since commit bf9f1baa279f0758dc2297080360c5a616843927 - where Eric mentioned we could possibly remove the page_frag_1k after that (on my todo list since forever, sorry). Cheers, Paolo >
