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

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Message-ID: <20241018090757.411456-1-tianmuyang@huawei.com>
Date: Fri, 18 Oct 2024 17:07:57 +0800
From: Muyang Tian <tianmuyang@...wei.com>
To: Alexander Lobakin <aleksander.lobakin@...el.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>,
	<tianmuyang@...wei.com>
Subject: Re: [PATCH 1/3] xdp: Add Rx checksum hint

On Thu, 17 Oct 2024 16:27:50 +0200, Alexander Lobakin wrote:
> 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?

Hi Olek, I have made some discussions with the community days ago[0][1], thus the previous discussion[2] is to be revived with this patchset. I will update the patchset with correct reference.
Thanks!

[0] https://lore.kernel.org/all/ZuGrpG6N_OINizBm@mini-arch/ 
[1] https://lore.kernel.org/all/Zw1eZQJG3EMz5ADv@mini-arch/
[2] https://lore.kernel.org/bpf/20230811161509.19722-13-larysa.zaremba@intel.com/