lkml.org 
[lkml]   [2023]   [Jun]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH net-next v4 4/5] page_pool: remove PP_FLAG_PAGE_FRAG flag
On Fri, 16 Jun 2023 20:59:12 +0200 Jesper Dangaard Brouer wrote:
> + if (mem_type == MEM_TYPE_PP_NETMEM)
> + pp_netmem_put_page(pp, page, allow_direct);
> + else
> + page_pool_put_full_page(pp, page, allow_direct);

Interesting, what is the netmem type? I was thinking about extending
page pool for other mem providers and what came to mind was either
optionally replacing the free / alloc with a function pointer:

https://github.com/torvalds/linux/commit/578ebda5607781c0abb26c1feae7ec8b83840768

or wrapping the PP calls with static inlines which can direct to
a different implementation completely (like zctap / io_uring zc).

Former is better for huge pages, latter is better for IO mem
(peer-to-peer DMA). I wonder if you have different use case which
requires a different model :(

\
 
 \ /
  Last update: 2023-06-16 21:26    [W:0.408 / U:0.084 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site