From: Jesper Dangaard Brouer <brouer@redhat.com>
To: Hangbin Liu <liuhangbin@gmail.com>
Cc: bpf@vger.kernel.org, netdev@vger.kernel.org,
"Daniel Borkmann" <daniel@iogearbox.net>,
"John Fastabend" <john.fastabend@gmail.com>,
"Toke Høiland-Jørgensen" <toke@redhat.com>,
"Tariq Toukan" <tariqt@mellanox.com>,
brouer@redhat.com, "Jakub Kicinski" <kuba@kernel.org>
Subject: Re: [PATCH bpf-next] samples/bpf: add xdp_redirect_map with xdp_prog support
Date: Tue, 10 Nov 2020 15:25:10 +0100 [thread overview]
Message-ID: <20201110152510.2a7fa65c@carbon> (raw)
In-Reply-To: <20201110124639.1941654-1-liuhangbin@gmail.com>
On Tue, 10 Nov 2020 20:46:39 +0800
Hangbin Liu <liuhangbin@gmail.com> wrote:
> This patch add running xdp program on egress interface support for
> xdp_redirect_map sample. The new prog will change the IP ttl based
> on egress ifindex.
>
> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
> ---
> samples/bpf/xdp_redirect_map_kern.c | 74 ++++++++++++++++++++++++++++-
> samples/bpf/xdp_redirect_map_user.c | 21 ++++----
Hmmm... I don't think is it a good idea to modify xdp_redirect_map this way.
The xdp_redirect_map is used for comparative benchmarking and
mentioned+used in scientific articles. As far as I can see, this
change will default slowdown xdp_redirect_map performance, right?
--
Best regards,
Jesper Dangaard Brouer
MSc.CS, Principal Kernel Engineer at Red Hat
LinkedIn: http://www.linkedin.com/in/brouer
next prev parent reply other threads:[~2020-11-10 14:25 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-10 12:46 [PATCH bpf-next] samples/bpf: add xdp_redirect_map with xdp_prog support Hangbin Liu
2020-11-10 14:25 ` Jesper Dangaard Brouer [this message]
2020-11-10 15:24 ` Maciej Fijalkowski
2020-11-11 1:12 ` Hangbin Liu
2020-11-26 8:43 ` [PATCHv2 bpf-next] samples/bpf: add xdp program on egress for xdp_redirect_map Hangbin Liu
2020-11-26 10:51 ` Jesper Dangaard Brouer
2020-11-26 14:19 ` Hangbin Liu
2020-11-27 6:31 ` Yonghong Song
2020-11-30 7:51 ` Hangbin Liu
2020-11-30 9:32 ` Jesper Dangaard Brouer
2020-11-30 13:10 ` Hangbin Liu
2020-11-30 15:12 ` Jesper Dangaard Brouer
2020-11-30 16:07 ` Toke Høiland-Jørgensen
2020-12-08 8:18 ` [PATCHv3 " Hangbin Liu
2020-12-08 10:39 ` Jesper Dangaard Brouer
2020-12-08 11:11 ` Hangbin Liu
2020-12-08 12:01 ` [PATCHv4 " Hangbin Liu
2020-12-11 0:15 ` Daniel Borkmann
2020-12-11 2:40 ` [PATCHv5 " Hangbin Liu
2021-01-14 14:27 ` [PATCHv6 " Hangbin Liu
2021-01-14 21:01 ` Yonghong Song
2021-01-15 4:17 ` Hangbin Liu
2021-01-15 6:24 ` [PATCHv7 " Hangbin Liu
2021-01-15 16:57 ` Yonghong Song
2021-01-18 22:46 ` Daniel Borkmann
2021-01-19 3:12 ` [PATCHv8 " Hangbin Liu
2021-01-19 14:51 ` Jesper Dangaard Brouer
2021-01-20 4:16 ` Hangbin Liu
2021-01-21 13:06 ` [PATCHv9 " Hangbin Liu
2021-01-21 15:05 ` Jesper Dangaard Brouer
2021-01-22 2:50 ` [PATCHv10 " Hangbin Liu
2021-01-22 10:32 ` Jesper Dangaard Brouer
2021-01-22 23:30 ` patchwork-bot+netdevbpf
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