Re: [PATCH rfc v2 0/5] add elevated refcnt support for page pool

[Matteo Croce]

On Sat, Jul 10, 2021 at 9:44 AM Yunsheng Lin <linyunsheng@xxxxxxxxxx> wrote:
>
> This patchset adds elevated refcnt support for page pool
> and enable skb's page frag recycling based on page pool
> in hns3 drvier.
>
> RFC v2:
> 1. Split patch 1 to more reviewable one.
> 2. Repurpose the lower 12 bits of the dma address to store the
>    pagecnt_bias as suggested by Alexander.
> 3. support recycling to pool->alloc for elevated refcnt case
>    too.
>
> Yunsheng Lin (5):
>   page_pool: keep pp info as long as page pool owns the page
>   page_pool: add interface for getting and setting pagecnt_bias
>   page_pool: add page recycling support based on elevated refcnt
>   page_pool: support page frag API for page pool
>   net: hns3: support skb's frag page recycling based on page pool
>
>  drivers/net/ethernet/hisilicon/hns3/hns3_enet.c |  79 ++++++++++-
>  drivers/net/ethernet/hisilicon/hns3/hns3_enet.h |   3 +
>  drivers/net/ethernet/marvell/mvneta.c           |   6 +-
>  drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c |   2 +-
>  drivers/net/ethernet/ti/cpsw.c                  |   2 +-
>  drivers/net/ethernet/ti/cpsw_new.c              |   2 +-
>  include/linux/skbuff.h                          |   4 +-
>  include/net/page_pool.h                         |  50 +++++--
>  net/core/page_pool.c                            | 172 ++++++++++++++++++++----
>  9 files changed, 266 insertions(+), 54 deletions(-)
>
> --
> 2.7.4
>

For mvpp2:

Tested-by: Matteo Croce <mcroce@xxxxxxxxxxxxx>

-- 
per aspera ad upstream