DPDK patches and discussions
 help / color / mirror / Atom feed
From: "Jiawei(Jonny) Wang" <jiaweiw@nvidia.com>
To: Jan Viktorin <viktorin@cesnet.cz>, Asaf Penso <asafp@nvidia.com>
Cc: "dev@dpdk.org" <dev@dpdk.org>, Ori Kam <orika@nvidia.com>,
	Slava Ovsiienko <viacheslavo@nvidia.com>
Subject: Re: [dpdk-dev] Duplicating traffic with RTE Flow
Date: Wed, 23 Sep 2020 02:28:03 +0000
Message-ID: <BL0PR12MB241915CB67FAF721100B6A6BC6380@BL0PR12MB2419.namprd12.prod.outlook.com> (raw)
In-Reply-To: <20200921220355.3fb251c0@zouker.localdomain>

Hi Jan,

Sorry for late response, Could you check the below latest patches that support flow-based traffic sampling? (based on: net/enic: support VXLAN decap action combined with VLAN pop)
https://patchwork.dpdk.org/project/dpdk/list/?series=12410

" The solution introduces a new action that will sample the incoming
traffic and send a duplicated traffic with the specified ratio to the
application, while the original packet will continue to the target
destination."
And,
 set sample_actions 1 port_id id 1 / end
   flow create 0 ... pattern eth / end actions
	sample ratio 1 index 1 / port_id id 2...
The flow will result in all the matched ingress packets will be sent to
port 2, and also mirrored the packets and sent to port 1.

Thanks.
B.R.

Jonny

> -----Original Message-----
> From: Jan Viktorin <viktorin@cesnet.cz>
> Sent: Tuesday, September 22, 2020 4:04 AM
> To: Asaf Penso <asafp@nvidia.com>
> Cc: dev@dpdk.org; Ori Kam <orika@nvidia.com>; Jiawei(Jonny) Wang
> <jiaweiw@nvidia.com>; Slava Ovsiienko <viacheslavo@nvidia.com>
> Subject: Re: [dpdk-dev] Duplicating traffic with RTE Flow
> 
> On Fri, 18 Sep 2020 14:23:42 +0000
> Asaf Penso <asafp@nvidia.com> wrote:
> 
> > Hello Jan,
> >
> > You can have a look in series [1] where we propose to add APIs to
> DPDK20.11 for both mirroring and sampling for packets, with additional
> actions of the different traffic.
> >
> > [1]
> >
> https://nam11.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch
> >
> es.dpdk.org%2Fproject%2Fdpdk%2Flist%2F%3Fseries%3D12045&amp;data=
> 02%7C
> >
> 01%7Cjiaweiw%40nvidia.com%7C8c9585855f9640f37ae608d85e698dbb%7C43
> 083d1
> >
> 5727340c1b7db39efd9ccc17a%7C0%7C1%7C637363154745490399&amp;sdata
> =mdG51
> >
> UgntQvMjs%2BPpRozwt2dtAcdWR8j9MXBtZ3%2Bl8k%3D&amp;reserved=0
> 
> Thanks! Can you please recommend me a base where I can apply this series?
> For current main (dc18be1d8) I got:
> 
> error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:9537
> error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply
> error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:80
> error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply
> error: patch failed: drivers/net/mlx5/mlx5_flow_dv.c:9007
> error: drivers/net/mlx5/mlx5_flow_dv.c: patch does not apply
> 
> Jan
> 
> >
> > Regards,
> > Asaf Penso
> >
> > >-----Original Message-----
> > >From: dev <dev-bounces@dpdk.org> On Behalf Of Jan Viktorin
> > >Sent: Friday, September 18, 2020 3:56 PM
> > >To: dev@dpdk.org
> > >Subject: [dpdk-dev] Duplicating traffic with RTE Flow
> > >
> > >Hello all,
> > >
> > >we are looking for a way to duplicate ingress traffic in hardware.
> > >
> > >There is an example in [1] suggesting to insert two fate actions into
> > >the RTE Flow actions array like:
> > >
> > >  flow create 0 ingress pattern end \
> > >      actions queue index 0 / void / queue index 1 / end
> > >
> > >But our experience is that PMDs reject two fate actions (tried with
> > >mlx5). Another similar approach would be to deliver every single
> > >packet into two virtual
> > >functions:
> > >
> > >  flow create 0 ingress pattern end \
> > >     actions vf index 0 / vf index 1 / end
> > >
> > >Third possibility was to use passthru:
> > >
> > >  flow create 0 ingress pattern end \
> > >      actions passthru / vf index 0 / end  flow create 0 ingress
> > > pattern end \
> > >      actions vf index 1 / end
> > >
> > >Again, tried on mlx5 and it does not support the passthru.
> > >
> > >Last idea was to use isolate with passthru (to deliver both to DPDK
> > >application and to the kernel) but again there was no support on mlx5 for
> passthru...
> > >
> > >  flow isolate 0 true
> > >  flow create 0 ingress pattern end actions passthru / rss end / end
> > >
> > >Is there any other possibility or PMD+NIC that is known to solve such
> issue?
> > >
> > >Thanks
> > >Jan Viktorin
> > >
> > >[1]
> > >https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fd
> oc
> > >.dpdk
> > >.org%2Fguides%2Fprog_guide%2Frte_flow.html%23table-rte-flow-
> redirect-
> > >queue-5-
> > >3&amp;data=02%7C01%7Casafp%40nvidia.com%7C1a46005bec5245e729e
> 708d
> > >85bd24caf%7C43083d15727340c1b7db39efd9ccc17a%7C0%7C0%7C637360
> 3060
> > >73519816&amp;sdata=EOF%2Fz62crvBZK8rwzwKIWxj5cVlfPVnU3FLmcL9X
> 2w0%3
> > >D&amp;reserved=0


  reply	other threads:[~2020-09-23  2:28 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-18 12:56 Jan Viktorin
2020-09-18 14:23 ` Asaf Penso
2020-09-21 20:03   ` Jan Viktorin
2020-09-23  2:28     ` Jiawei(Jonny) Wang [this message]
2020-09-23  8:29       ` Jan Viktorin
2020-09-27  6:33         ` Jiawei(Jonny) Wang
2021-03-01 12:21   ` Jan Viktorin
2021-03-01 14:34     ` Slava Ovsiienko
2021-03-01 14:43       ` Jan Viktorin
2021-03-11  2:11         ` Jiawei(Jonny) Wang
2021-03-11 16:32           ` Jan Viktorin
2021-03-12  9:32             ` Jiawei(Jonny) Wang
2021-03-15 13:22               ` Jan Viktorin
2021-03-15 17:57                 ` Jan Viktorin
2021-03-16  4:00                 ` Jiawei(Jonny) Wang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=BL0PR12MB241915CB67FAF721100B6A6BC6380@BL0PR12MB2419.namprd12.prod.outlook.com \
    --to=jiaweiw@nvidia.com \
    --cc=asafp@nvidia.com \
    --cc=dev@dpdk.org \
    --cc=orika@nvidia.com \
    --cc=viacheslavo@nvidia.com \
    --cc=viktorin@cesnet.cz \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

DPDK patches and discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://inbox.dpdk.org/dev/0 dev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 dev dev/ https://inbox.dpdk.org/dev \
		dev@dpdk.org
	public-inbox-index dev

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://inbox.dpdk.org/inbox.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git