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SubjectRe: [PATCH rfc v2 0/5] add elevated refcnt support for page pool
On Sat, Jul 10, 2021 at 9:44 AM Yunsheng Lin <linyunsheng@huawei.com> 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@microsoft.com>

--
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