linux-kernel - Re: [PATCH bpf-next v5 1/4] xsk: Add launch time hardware offload support to XDP Tx metadata

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Message-ID: <Z4hSYdzvbggntSr0@mini-arch>
Date: Wed, 15 Jan 2025 16:27:13 -0800
From: Stanislav Fomichev <stfomichev@...il.com>
To: Song Yoong Siang <yoong.siang.song@...el.com>
Cc: "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Willem de Bruijn <willemb@...gle.com>,
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	Donald Hunter <donald.hunter@...il.com>,
	Jonathan Corbet <corbet@....net>, Bjorn Topel <bjorn@...nel.org>,
	Magnus Karlsson <magnus.karlsson@...el.com>,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	Jonathan Lemon <jonathan.lemon@...il.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Joe Damato <jdamato@...tly.com>,
	Stanislav Fomichev <sdf@...ichev.me>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
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	Daniel Jurgens <danielj@...dia.com>,
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	Martin KaFai Lau <martin.lau@...ux.dev>, Song Liu <song@...nel.org>,
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	Jiri Olsa <jolsa@...nel.org>, Shuah Khan <shuah@...nel.org>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Tony Nguyen <anthony.l.nguyen@...el.com>,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, bpf@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	intel-wired-lan@...ts.osuosl.org, xdp-hints@...-project.net
Subject: Re: [PATCH bpf-next v5 1/4] xsk: Add launch time hardware offload
 support to XDP Tx metadata

On 01/14, Song Yoong Siang wrote:
> Extend the XDP Tx metadata framework so that user can requests launch time
> hardware offload, where the Ethernet device will schedule the packet for
> transmission at a pre-determined time called launch time. The value of
> launch time is communicated from user space to Ethernet driver via
> launch_time field of struct xsk_tx_metadata.
> 
> Suggested-by: Stanislav Fomichev <sdf@...ichev.me>
> Signed-off-by: Song Yoong Siang <yoong.siang.song@...el.com>

Acked-by: Stanislav Fomichev <sdf@...ichev.me>