From: Jakub Kicinski <kuba@kernel.org>
To: Tianyi Gao <tianyi@cloudflare.com>
Cc: Stanislav Fomichev <sdf.kernel@gmail.com>,
bpf@vger.kernel.org, netdev@vger.kernel.org,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
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Martin KaFai Lau <martin.lau@linux.dev>,
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John Fastabend <john.fastabend@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>,
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Vladimir Vdovin <deliran@verdict.gg>,
"David S. Miller" <davem@davemloft.net>,
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Subject: Re: [PATCH bpf-next 00/15] xdp: add SKB core extensions to keep RX metadata until skb creation
Date: Sun, 15 Nov 2026 11:39:02 -0800 [thread overview]
Message-ID: <20261115113902.4834dda6@kernel.org> (raw)
In-Reply-To: <CAG4wq-egD55NZDw+OKVKTKN2tQJ9oKEC504wFv=xoMXyJ-0z4g@mail.gmail.com>
On Wed, 11 Nov 2026 01:07:46 +0000 Tianyi Gao wrote:
> - On veth, an XDP program removes software GSO from the peer, limits
> its MTU, and can copy skbs from the peer.
Could you remind us why you XDP_REDIRECT xdp_frames to the veth
if you end up allocating the skb on the veth, anyway?
I thought that was to let veth run its own prog before skb is allocated
but you're saying that you want to avoid veth having a prog, so clearly
it's not that.
next prev parent reply other threads:[~2026-11-15 19:39 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 3:56 [PATCH bpf-next 00/15] xdp: add SKB core extensions to keep RX metadata until skb creation Tianyi Gao
2026-11-10 3:56 ` [PATCH bpf-next 01/15] xdp: reserve an skb core extension area after the xdp_frame Tianyi Gao
2026-11-10 13:10 ` Jesper Dangaard Brouer
2026-11-10 3:57 ` [PATCH bpf-next 02/15] net: dpaa, dpaa2: clear the skb core extension flag Tianyi Gao
2026-11-13 12:02 ` Loktionov, Aleksandr
2026-11-10 3:57 ` [PATCH bpf-next 03/15] xdp: add kfuncs to store RX hash and VLAN tag Tianyi Gao
2026-11-10 14:13 ` Jesper Dangaard Brouer
2026-11-10 3:57 ` [PATCH bpf-next 04/15] xdp: add a kfunc to delete skb core extension entries Tianyi Gao
2026-11-10 14:20 ` Jesper Dangaard Brouer
2026-11-13 12:04 ` Loktionov, Aleksandr
2026-11-10 3:57 ` [PATCH bpf-next 05/15] xdp: add a kfunc to store the RX checksum status Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 06/15] selftests/bpf: Test the skb core extension kfuncs Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 07/15] xdp: set skb RX metadata from the skb core extension area of xdp_frame Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 08/15] selftests/bpf: Test RX metadata on skbs built from xdp_frames Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 09/15] xdp: add the skb-ext-pass XDP feature and warn without it Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 10/15] xdp: warn on XDP_PASS with stored values when XDP runs on an skb Tianyi Gao
2026-11-10 4:53 ` bot+bpf-ci
2026-11-10 3:57 ` [PATCH bpf-next 11/15] ice: set skb RX metadata from the skb core extension area of xdp_buff Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 12/15] selftests: drv-net: xdp: test the stored RX metadata on XDP_PASS Tianyi Gao
2026-11-10 3:57 ` [PATCH bpf-next 13/15] xdp: add kfuncs to load the stored RX metadata Tianyi Gao
2026-11-13 12:05 ` Loktionov, Aleksandr
2026-11-10 3:57 ` [PATCH bpf-next 14/15] selftests/bpf: Test the load kfuncs on cpumap and veth Tianyi Gao
2026-11-13 12:06 ` Loktionov, Aleksandr
2026-11-10 3:57 ` [PATCH bpf-next 15/15] docs: net: document the skb core extension area Tianyi Gao
2026-11-10 4:53 ` bot+bpf-ci
2026-11-10 13:01 ` [PATCH bpf-next 00/15] xdp: add SKB core extensions to keep RX metadata until skb creation Jesper Dangaard Brouer
2026-11-11 0:00 ` Stanislav Fomichev
2026-11-11 1:07 ` Tianyi Gao
2026-11-11 22:25 ` Stanislav Fomichev
2026-11-11 23:46 ` Tianyi Gao
2026-11-15 19:39 ` Jakub Kicinski [this message]
2026-11-12 0:34 ` Alexei Starovoitov
2026-11-12 14:55 ` Tianyi Gao
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