From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
To: Nick Hudson <nhudson@akamai.com>,
bpf@vger.kernel.org, netdev@vger.kernel.org,
Willem de Bruijn <willemb@google.com>,
Martin KaFai Lau <martin.lau@linux.dev>
Cc: Nick Hudson <nhudson@akamai.com>,
Max Tottenham <mtottenh@akamai.com>,
Anna Glasgall <aglasgal@akamai.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Andrii Nakryiko <andrii@kernel.org>,
Eduard Zingerman <eddyz87@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 3/6] bpf: add BPF_F_ADJ_ROOM_DECAP_* flags for tunnel decapsulation
Date: Mon, 20 Apr 2026 15:44:11 -0400 [thread overview]
Message-ID: <willemdebruijn.kernel.33c89b87c9822@gmail.com> (raw)
In-Reply-To: <20260420104051.1528843-4-nhudson@akamai.com>
Nick Hudson wrote:
> Add new bpf_skb_adjust_room() decapsulation flags:
>
> - BPF_F_ADJ_ROOM_DECAP_L4_GRE
> - BPF_F_ADJ_ROOM_DECAP_L4_UDP
> - BPF_F_ADJ_ROOM_DECAP_IPXIP4
> - BPF_F_ADJ_ROOM_DECAP_IPXIP6
>
> These flags let BPF programs describe which tunnel layer is being
> removed, so later changes can update tunnel-related GSO state
> accordingly during decapsulation.
>
> This patch only introduces the UAPI flag definitions and helper
> documentation.
>
> Co-developed-by: Max Tottenham <mtottenh@akamai.com>
> Signed-off-by: Max Tottenham <mtottenh@akamai.com>
> Co-developed-by: Anna Glasgall <aglasgal@akamai.com>
> Signed-off-by: Anna Glasgall <aglasgal@akamai.com>
> Signed-off-by: Nick Hudson <nhudson@akamai.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
next prev parent reply other threads:[~2026-04-20 19:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-20 10:40 [PATCH bpf-next v5 0/6] bpf: decap flags and GSO state updates Nick Hudson
2026-04-20 10:40 ` [PATCH v5 1/6] bpf: name the enum for BPF_FUNC_skb_adjust_room flags Nick Hudson
2026-04-20 10:40 ` [PATCH v5 2/6] bpf: refactor masks for ADJ_ROOM flags and encap validation Nick Hudson
2026-04-20 19:42 ` Willem de Bruijn
2026-04-27 22:40 ` Martin KaFai Lau
2026-04-20 10:40 ` [PATCH v5 3/6] bpf: add BPF_F_ADJ_ROOM_DECAP_* flags for tunnel decapsulation Nick Hudson
2026-04-20 19:44 ` Willem de Bruijn [this message]
2026-04-20 10:40 ` [PATCH v5 4/6] bpf: allow new DECAP flags and add guard rails Nick Hudson
2026-04-20 19:45 ` Willem de Bruijn
2026-04-20 10:40 ` [PATCH v5 5/6] bpf: clear decap tunnel GSO state in skb_adjust_room Nick Hudson
2026-04-20 11:19 ` bot+bpf-ci
2026-04-27 22:19 ` Martin KaFai Lau
2026-04-20 19:46 ` Willem de Bruijn
2026-04-20 10:40 ` [PATCH v5 6/6] selftests/bpf: tc_tunnel validate decap GSO state Nick Hudson
2026-04-20 11:19 ` bot+bpf-ci
2026-04-27 22:36 ` Martin KaFai Lau
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