From: "Toke Høiland-Jørgensen" <toke@redhat.com>
To: John Fastabend <john.fastabend@gmail.com>,
John Fastabend <john.fastabend@gmail.com>,
Toshiaki Makita <toshiaki.makita1@gmail.com>,
John Fastabend <john.fastabend@gmail.com>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
Martin KaFai Lau <kafai@fb.com>, Song Liu <songliubraving@fb.com>,
Yonghong Song <yhs@fb.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <jakub.kicinski@netronome.com>,
Jesper Dangaard Brouer <hawk@kernel.org>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Jiri Pirko <jiri@resnulli.us>,
Pablo Neira Ayuso <pablo@netfilter.org>,
Jozsef Kadlecsik <kadlec@netfilter.org>,
Florian Westphal <fw@strlen.de>,
Pravin B Shelar <pshelar@ovn.org>
Cc: netdev@vger.kernel.org, bpf@vger.kernel.org,
William Tu <u9012063@gmail.com>,
Stanislav Fomichev <sdf@fomichev.me>
Subject: Re: [RFC PATCH v2 bpf-next 00/15] xdp_flow: Flow offload to XDP
Date: Thu, 24 Oct 2019 12:13:09 +0200 [thread overview]
Message-ID: <87sgniladm.fsf@toke.dk> (raw)
In-Reply-To: <5db128153c75_549d2affde7825b85e@john-XPS-13-9370.notmuch>
John Fastabend <john.fastabend@gmail.com> writes:
> Toke Høiland-Jørgensen wrote:
>> John Fastabend <john.fastabend@gmail.com> writes:
>>
>> > I think for sysadmins in general (not OVS) use case I would work
>> > with Jesper and Toke. They seem to be working on this specific
>> > problem.
>>
>> We're definitely thinking about how we can make "XDP magically speeds up
>> my network stack" a reality, if that's what you mean. Not that we have
>> arrived at anything specific yet...
>
> There seemed to be two thoughts in the cover letter one how to make
> OVS flow tc path faster via XDP. And the other how to make other users
> of tc flower software stack faster.
>
> For the OVS case seems to me that OVS should create its own XDP
> datapath if its 5x faster than the tc flower datapath. Although
> missing from the data was comparing against ovs kmod so that
> comparison would also be interesting. This way OVS could customize
> things and create only what they need.
>
> But the other case for a transparent tc flower XDP a set of user tools
> could let users start using XDP for this use case without having to
> write their own BPF code. Anyways I had the impression that might be
> something you and Jesper are thinking about, general usability for
> users that are not necessarily writing their own network.
Yeah, you are right that it's something we're thinking about. I'm not
sure we'll actually have the bandwidth to implement a complete solution
ourselves, but we are very much interested in helping others do this,
including smoothing out any rough edges (or adding missing features) in
the core XDP feature set that is needed to achieve this :)
-Toke
next prev parent reply other threads:[~2019-10-24 10:13 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-18 4:07 [RFC PATCH v2 bpf-next 00/15] xdp_flow: Flow offload to XDP Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 01/15] xdp_flow: Add skeleton of XDP based flow offload driver Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 02/15] xdp_flow: Add skeleton bpf program for XDP Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 03/15] bpf: Add API to get program from id Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 04/15] xdp: Export dev_check_xdp and dev_change_xdp Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 05/15] xdp_flow: Attach bpf prog to XDP in kernel after UMH loaded program Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 06/15] xdp_flow: Prepare flow tables in bpf Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 07/15] xdp_flow: Add flow entry insertion/deletion logic in UMH Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 08/15] xdp_flow: Add flow handling and basic actions in bpf prog Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 09/15] xdp_flow: Implement flow replacement/deletion logic in xdp_flow kmod Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 10/15] xdp_flow: Add netdev feature for enabling flow offload to XDP Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 11/15] xdp_flow: Implement redirect action Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 12/15] xdp_flow: Implement vlan_push action Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 13/15] bpf, selftest: Add test for xdp_flow Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 14/15] i40e: prefetch xdp->data before running XDP prog Toshiaki Makita
2019-10-18 4:07 ` [RFC PATCH v2 bpf-next 15/15] bpf, hashtab: Compare keys in long Toshiaki Makita
2019-10-18 15:22 ` [RFC PATCH v2 bpf-next 00/15] xdp_flow: Flow offload to XDP John Fastabend
2019-10-21 7:31 ` Toshiaki Makita
2019-10-22 16:54 ` John Fastabend
2019-10-22 17:45 ` Toke Høiland-Jørgensen
2019-10-24 4:27 ` John Fastabend
2019-10-24 10:13 ` Toke Høiland-Jørgensen [this message]
2019-10-27 13:19 ` Toshiaki Makita
2019-10-27 15:21 ` Toke Høiland-Jørgensen
2019-10-28 3:16 ` David Ahern
2019-10-28 8:36 ` Toke Høiland-Jørgensen
2019-10-28 10:08 ` Jesper Dangaard Brouer
2019-10-28 19:07 ` David Ahern
2019-10-28 19:05 ` David Ahern
2019-10-31 0:18 ` Toshiaki Makita
2019-10-31 12:12 ` Toke Høiland-Jørgensen
2019-11-11 7:32 ` Toshiaki Makita
2019-11-12 16:53 ` Toke Høiland-Jørgensen
2019-11-14 10:11 ` Toshiaki Makita
2019-11-14 12:41 ` Toke Høiland-Jørgensen
2019-11-18 6:41 ` Toshiaki Makita
2019-11-18 10:20 ` Toke Høiland-Jørgensen
2019-11-22 5:42 ` Toshiaki Makita
2019-11-22 11:54 ` Toke Høiland-Jørgensen
2019-11-25 10:18 ` Toshiaki Makita
2019-11-25 13:03 ` Toke Høiland-Jørgensen
2019-11-18 10:28 ` Toke Høiland-Jørgensen
2019-10-27 13:13 ` Toshiaki Makita
2019-10-27 15:24 ` Toke Høiland-Jørgensen
2019-10-27 19:17 ` David Miller
2019-10-31 0:32 ` Toshiaki Makita
2019-11-12 17:50 ` William Tu
2019-11-14 10:06 ` Toshiaki Makita
2019-11-14 17:09 ` William Tu
2019-11-15 13:16 ` Toke Høiland-Jørgensen
2019-11-12 17:38 ` William Tu
2019-10-23 14:11 ` Jamal Hadi Salim
2019-10-24 4:38 ` John Fastabend
2019-10-24 17:05 ` Jamal Hadi Salim
2019-10-27 13:27 ` Toshiaki Makita
2019-10-27 13:06 ` Toshiaki Makita
2019-10-21 11:23 ` Björn Töpel
2019-10-21 11:47 ` Toshiaki Makita
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