linux-kernel - Re: [PATCH bpf-next v3 0/3] Add FOU support for externally controlled ipip devices

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Message-Id: <168134341870.18395.11210740779039610735.git-patchwork-notify@kernel.org>
Date:   Wed, 12 Apr 2023 23:50:18 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Christian Ehrig <cehrig@...udflare.com>
Cc:     bpf@...r.kernel.org, kernel-team@...udflare.com, ast@...nel.org,
        andrii@...nel.org, daniel@...earbox.net, davemarchevsky@...com,
        void@...ifault.com, liuhangbin@...il.com, haoluo@...gle.com,
        jolsa@...nel.org, john.fastabend@...il.com,
        fankaixi.li@...edance.com, kpsingh@...nel.org,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        martin.lau@...ux.dev, mykolal@...com, netdev@...r.kernel.org,
        paul@...valent.com, song@...nel.org, sdf@...gle.com, yhs@...com
Subject: Re: [PATCH bpf-next v3 0/3] Add FOU support for externally controlled
 ipip devices

Hello:

This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov <ast@...nel.org>:

On Fri,  7 Apr 2023 15:38:52 +0200 you wrote:
> This patch set adds support for using FOU or GUE encapsulation with
> an ipip device operating in collect-metadata mode and a set of kfuncs
> for controlling encap parameters exposed to a BPF tc-hook.
> 
> BPF tc-hooks allow us to read tunnel metadata (like remote IP addresses)
> in the ingress path of an externally controlled tunnel interface via
> the bpf_skb_get_tunnel_{key,opt} bpf-helpers. Packets can then be
> redirected to the same or a different externally controlled tunnel
> interface by overwriting metadata via the bpf_skb_set_tunnel_{key,opt}
> helpers and a call to bpf_redirect. This enables us to redirect packets
> between tunnel interfaces - and potentially change the encapsulation
> type - using only a single BPF program.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v3,1/3] ipip,ip_tunnel,sit: Add FOU support for externally controlled ipip devices
    https://git.kernel.org/bpf/bpf-next/c/ac931d4cdec3
  - [bpf-next,v3,2/3] bpf,fou: Add bpf_skb_{set,get}_fou_encap kfuncs
    https://git.kernel.org/bpf/bpf-next/c/c50e96099edb
  - [bpf-next,v3,3/3] selftests/bpf: Test FOU kfuncs for externally controlled ipip devices
    https://git.kernel.org/bpf/bpf-next/c/d9688f898c08

You are awesome, thank you!
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