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From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: "Kal Conley" <kal.conley@dectris.com>,
	"Björn Töpel" <bjorn@kernel.org>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Maciej Fijalkowski" <maciej.fijalkowski@intel.com>,
	"Jonathan Lemon" <jonathan.lemon@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	"Jakub Kicinski" <kuba@kernel.org>,
	"Paolo Abeni" <pabeni@redhat.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"Alexei Starovoitov" <ast@kernel.org>,
	"Daniel Borkmann" <daniel@iogearbox.net>,
	"Jesper Dangaard Brouer" <hawk@kernel.org>,
	"John Fastabend" <john.fastabend@gmail.com>
Cc: Kal Conley <kal.conley@dectris.com>,
	netdev@vger.kernel.org, bpf@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH bpf-next v3 1/3] xsk: Support UMEM chunk_size > PAGE_SIZE
Date: Thu, 06 Apr 2023 20:38:05 +0200	[thread overview]
Message-ID: <87sfdckgaa.fsf@toke.dk> (raw)
In-Reply-To: <20230406130205.49996-2-kal.conley@dectris.com>

Kal Conley <kal.conley@dectris.com> writes:

> Add core AF_XDP support for chunk sizes larger than PAGE_SIZE. This
> enables sending/receiving jumbo ethernet frames up to the theoretical
> maxiumum of 64 KiB. For chunk sizes > PAGE_SIZE, the UMEM is required
> to consist of HugeTLB VMAs (and be hugepage aligned). Initially, only
> SKB mode is usable pending future driver work.

Hmm, interesting. So how does this interact with XDP multibuf?

-Toke


  reply	other threads:[~2023-04-06 18:39 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-06 13:02 [PATCH bpf-next v3 0/3] xsk: Support UMEM chunk_size > PAGE_SIZE Kal Conley
2023-04-06 13:02 ` [PATCH bpf-next v3 1/3] " Kal Conley
2023-04-06 18:38   ` Toke Høiland-Jørgensen [this message]
2023-04-07 16:28     ` Maciej Fijalkowski
2023-04-08 17:38       ` Kal Cutter Conley
2023-04-12 13:34         ` Toke Høiland-Jørgensen
2023-04-12 13:55           ` Magnus Karlsson
2023-04-12 22:49             ` Toke Høiland-Jørgensen
2023-04-13 10:56           ` Kal Cutter Conley
2023-04-13 11:08             ` Toke Høiland-Jørgensen
2023-04-13 12:43               ` Kal Cutter Conley
2023-04-13 20:49                 ` Toke Høiland-Jørgensen
2023-04-13 22:06                   ` Kal Cutter Conley
2023-04-13 22:28                     ` Toke Høiland-Jørgensen
2023-04-14  9:08                       ` Kal Cutter Conley
2023-04-17 12:13                   ` Magnus Karlsson
2023-04-17 12:40                     ` Toke Høiland-Jørgensen
2023-04-17 13:46                       ` Kal Cutter Conley
2023-04-14 16:36               ` Kal Cutter Conley
2023-04-18 10:16                 ` Toke Høiland-Jørgensen
2023-04-18 11:12                   ` Kal Cutter Conley
2023-04-21  9:37                     ` Maciej Fijalkowski
2023-04-21  9:54                       ` Toke Høiland-Jørgensen
2023-04-21 12:27                         ` Magnus Karlsson
2023-04-21 12:17                       ` Magnus Karlsson
2023-04-21 15:27                       ` Kal Cutter Conley
2023-04-06 13:02 ` [PATCH bpf-next v3 2/3] selftests: xsk: Use hugepages when umem->frame_size " Kal Conley
2023-04-06 13:02 ` [PATCH bpf-next v3 3/3] selftests: xsk: Add tests for 8K and 9K frame sizes Kal Conley

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