From: Christoph Hellwig <hch@infradead•org>
To: Andrew Lunn <andrew@lunn•ch>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro•org>,
Jakub Kicinski <kuba@kernel•org>,
Byungchul Park <byungchul@sk•com>,
willy@infradead•org, almasrymina@google•com,
kernel_team@skhynix•com, 42.hyeyoo@gmail•com, linux-mm@kvack•org,
hawk@kernel•org, netdev@vger•kernel.org
Subject: Re: [RFC] shrinking struct page (part of page pool)
Date: Sun, 11 May 2025 21:24:38 -0700 [thread overview]
Message-ID: <aCF4Bm-2cpU__QDA@infradead.org> (raw)
In-Reply-To: <c744c40b-2b38-4911-977d-61786de73791@lunn.ch>
On Sat, May 10, 2025 at 03:53:47PM +0200, Andrew Lunn wrote:
> > Random thoughts here until I look at the patches.
> > The concept of devices doing DMA + recycling the used buffer
> > transcends networking.
>
> Do you know of any other subsystem which takes a page, splits it into
> two, and then uses each half independently for DMA and recycling. A
> typical packet is 1514 octets, so you can get two in a page.
The mm/dmapool.c code is all about this.
next prev parent reply other threads:[~2025-05-12 4:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20250414013627.GA9161@system.software.com>
2025-04-14 1:52 ` [RFC] shrinking struct page (part of page pool) Byungchul Park
2025-04-14 23:30 ` Jakub Kicinski
2025-04-16 10:20 ` Byungchul Park
2025-05-10 7:02 ` Ilias Apalodimas
2025-05-10 13:53 ` Andrew Lunn
2025-05-12 4:24 ` Christoph Hellwig [this message]
2025-05-19 5:38 ` Ilias Apalodimas
2025-04-15 15:39 ` Mina Almasry
2025-04-16 5:24 ` Byungchul Park
2025-04-16 16:02 ` Mina Almasry
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