From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
To: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: netdev@vger.kernel.org, lorenzo.bianconi@redhat.com,
davem@davemloft.net, kuba@kernel.org, brouer@redhat.com
Subject: Re: [PATCH net-next] net: page_pool: Add page_pool_put_page_bulk() to page_pool.rst
Date: Mon, 23 Nov 2020 10:06:17 +0200 [thread overview]
Message-ID: <X7tteeAxhH9G0TwF@apalos.home> (raw)
In-Reply-To: <937ccc89a82302a06744bcb6d253f0e95651caa2.1605910519.git.lorenzo@kernel.org>
On Fri, Nov 20, 2020 at 11:19:34PM +0100, Lorenzo Bianconi wrote:
> Introduce page_pool_put_page_bulk() entry into the API section of
> page_pool.rst
>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
> Documentation/networking/page_pool.rst | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/Documentation/networking/page_pool.rst b/Documentation/networking/page_pool.rst
> index 43088ddf95e4..e848f5b995b8 100644
> --- a/Documentation/networking/page_pool.rst
> +++ b/Documentation/networking/page_pool.rst
> @@ -97,6 +97,14 @@ a page will cause no race conditions is enough.
>
> * page_pool_get_dma_dir(): Retrieve the stored DMA direction.
>
> +* page_pool_put_page_bulk(): It tries to refill a bulk of count pages into the
Tries to refill a number of pages sounds better?
> + ptr_ring cache holding ptr_ring producer lock. If the ptr_ring is full,
> + page_pool_put_page_bulk() will release leftover pages to the page allocator.
> + page_pool_put_page_bulk() is suitable to be run inside the driver NAPI tx
> + completion loop for the XDP_REDIRECT use case.
> + Please consider the caller must not use data area after running
s/consider/note/
> + page_pool_put_page_bulk(), as this function overwrites it.
> +
> Coding examples
> ===============
>
> --
> 2.28.0
>
Other than that
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
next prev parent reply other threads:[~2020-11-23 8:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-20 22:19 [PATCH net-next] net: page_pool: Add page_pool_put_page_bulk() to page_pool.rst Lorenzo Bianconi
2020-11-23 8:06 ` Ilias Apalodimas [this message]
2020-11-23 8:54 ` Lorenzo Bianconi
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