netdev - Re: [PATCH 1/3] xdp: Add Rx checksum hint

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Message-ID: <ff067123-f516-4e86-bdeb-c7fcb5cef796@intel.com>
Date: Thu, 17 Oct 2024 16:27:50 +0200
From: Alexander Lobakin <aleksander.lobakin@...el.com>
To: Muyang Tian <tianmuyang@...wei.com>
CC: Larysa Zaremba <larysa.zaremba@...el.com>, <bpf@...r.kernel.org>, "David S
 . Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, "Jakub
 Kicinski" <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Donald Hunter
	<donald.hunter@...il.com>, Björn Töpel
	<bjorn@...nel.org>, Magnus Karlsson <magnus.karlsson@...el.com>, "Maciej
 Fijalkowski" <maciej.fijalkowski@...el.com>, Jonathan Lemon
	<jonathan.lemon@...il.com>, Alexei Starovoitov <ast@...nel.org>, "Daniel
 Borkmann" <daniel@...earbox.net>, Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
	<yanan@...wei.com>, <xiesongyang@...wei.com>, <wuchangye@...wei.com>,
	<liuxin350@...wei.com>, <zhangmingyi5@...wei.com>, <liwei883@...wei.com>
Subject: Re: [PATCH 1/3] xdp: Add Rx checksum hint

From: Muyang Tian <tianmuyang@...wei.com>
Date: Thu, 17 Oct 2024 21:54:28 +0800

> This is an implementation of functionality that allows drivers
> to expose checksum information to XDP.
> This information includes:
> - Checksum info, a union of
>   - complete checksum, if checksum is complete
>   - skb-style checksum start and offset, if checksum is partial
> - Checksum status, an enum which is the same as skb checksums in
>   skbuff.h, identical to sk_buff.ip_summed
> 
> Signed-off-by: Muyang Tian <tianmuyang@...wei.com>

Is it just me or this is clearly based on [0] sent a year ago?
Credits then?

> ---
>  Documentation/netlink/specs/netdev.yaml      |  4 +++
>  Documentation/networking/xdp-rx-metadata.rst |  3 ++
>  include/net/xdp.h                            | 38 ++++++++++++++++++++
>  include/uapi/linux/netdev.h                  |  3 ++
>  net/core/xdp.c                               | 23 ++++++++++++
>  tools/include/uapi/linux/netdev.h            |  3 ++
>  6 files changed, 74 insertions(+)

[0]
https://lore.kernel.org/bpf/20230927075124.23941-13-larysa.zaremba@intel.com

Thanks,
Olek