On Sun, Nov 8, 2020 at 1:24 PM Zhu Yanjun <zyjzyj2...@gmail.com> wrote:
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> -------- Forwarded Message --------
> Subject: Re: [PATCH 1/1] RDMA/rxe: Fetch skb packets from ethernet layer
> Date: Sat, 7 Nov 2020 12:26:17 -0800
> From: Jakub Kicinski <k...@kernel.org>
> To: Zhu Yanjun <yanj...@nvidia.com>
> CC: dledf...@redhat.com, j...@ziepe.ca, linux-r...@vger.kernel.org, 
> netdev@vger.kernel.org
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> On Thu, 5 Nov 2020 19:12:01 +0800 Zhu Yanjun wrote:
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> In the original design, in rx, skb packet would pass ethernet
> layer and IP layer, eventually reach udp tunnel.
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> Now rxe fetches the skb packets from the ethernet layer directly.
> So this bypasses the IP and UDP layer. As such, the skb packets
> are sent to the upper protocals directly from the ethernet layer.
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> This increases bandwidth and decreases latency.
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> Signed-off-by: Zhu Yanjun <yanj...@nvidia.com>
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> Nope, no stealing UDP packets with some random rx handlers.

Why? Is there any risks?

Zhu Yanjun
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> The tunnel socket is a correct approach.

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