From: John Fastabend <john.fastabend@gmail.com>
To: Lorenzo Bianconi <lorenzo@kernel.org>,
bpf@vger.kernel.org, netdev@vger.kernel.org
Cc: davem@davemloft.net, kuba@kernel.org, ast@kernel.org,
daniel@iogearbox.net, brouer@redhat.com, toke@redhat.com,
pabeni@redhat.com, echaudro@redhat.com,
lorenzo.bianconi@redhat.com, toshiaki.makita1@gmail.com,
andrii@kernel.org
Subject: RE: [PATCH v5 bpf-next 1/3] net: veth: account total xdp_frame len running ndo_xdp_xmit
Date: Tue, 15 Mar 2022 20:22:42 -0700 [thread overview]
Message-ID: <62315802def7f_94df20826@john.notmuch> (raw)
In-Reply-To: <54f9fd3bb65d190daf2c0bbae2f852ff16cfbaa0.1646989407.git.lorenzo@kernel.org>
Lorenzo Bianconi wrote:
> Even if this is a theoretical issue since it is not possible to perform
> XDP_REDIRECT on a non-linear xdp_frame, veth driver does not account
> paged area in ndo_xdp_xmit function pointer.
> Introduce xdp_get_frame_len utility routine to get the xdp_frame full
> length and account total frame size running XDP_REDIRECT of a
> non-linear xdp frame into a veth device.
>
> Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
> ---
Acked-by: John Fastabend <john.fastabend@gmail.com>
next prev parent reply other threads:[~2022-03-16 3:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-11 9:14 [PATCH v5 bpf-next 0/3] introduce xdp frags support to veth driver Lorenzo Bianconi
2022-03-11 9:14 ` [PATCH v5 bpf-next 1/3] net: veth: account total xdp_frame len running ndo_xdp_xmit Lorenzo Bianconi
2022-03-16 3:22 ` John Fastabend [this message]
2022-03-11 9:14 ` [PATCH v5 bpf-next 2/3] veth: rework veth_xdp_rcv_skb in order to accept non-linear skb Lorenzo Bianconi
2022-03-11 14:59 ` Toke Høiland-Jørgensen
2022-03-16 3:49 ` John Fastabend
2022-03-11 9:14 ` [PATCH v5 bpf-next 3/3] veth: allow jumbo frames in xdp mode Lorenzo Bianconi
2022-03-11 14:59 ` Toke Høiland-Jørgensen
2022-03-16 3:50 ` John Fastabend
2022-03-17 19:40 ` [PATCH v5 bpf-next 0/3] introduce xdp frags support to veth driver patchwork-bot+netdevbpf
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