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From: "Gaëtan Rivet" <gaetan.rivet@6wind.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, John McNamara <john.mcnamara@intel.com>,
	Maryam Tahhan <maryam.tahhan@intel.com>
Subject: Re: [dpdk-dev] [RFC 17.08] Flow classification library
Date: Fri, 21 Apr 2017 12:38:13 +0200	[thread overview]
Message-ID: <20170421103813.GH14914@bidouze.vm.6wind.com> (raw)
In-Reply-To: <20170420185448.19162-1-ferruh.yigit@intel.com>

Hi Ferruh,

On Thu, Apr 20, 2017 at 07:54:47PM +0100, Ferruh Yigit wrote:
>DPDK works with packets, but some network administration tools works based on
>flow information.
>
>This library is suggested to provide helper APIs to convert packet based
>information to the flow records. Library header file has more comments on
>how library works and provided APIs.
>
>Packets to flow conversion will cause performance drop, that is why this
>conversion can be enabled and disabled dynamically by application.
>
>Initial implementation in mind is to provide support for IPFIX metering process
>but library planned to be as generic as possible. And flow information provided
>by this library is missing to implement full IPFIX features, but this is planned
>to be initial step.
>

In order to be generic, would it not be interesting to specify the flow
as a generic rte_flow_item list? Some specific IPFIX items are not
expressed currently in rte_flow (e.g. packet size), but they could be added.

This library could consist in an rte_flow_item to IPFIX translation.

The inverse approach could be used, but seems backward to me. It makes
more sense to support DPDK idioms and open them to standards by
proper APIs than including standards in internals and introduce
translation layers between DPDK components.

>It is possible to define flow with various flow keys, but currently only one
>type of flow defined in the library, which is more generic, and it offloads
>fine grained flow analysis to the application. Library enables expanding for
>other flow types.
>

I'm not sure I understand the purpose of this flow key, generic
is too general of a hint to define the possible cases.

However, my intuition is that the flow type describe a filter to
restrict the flow classification to specific patterns instead of all
supported ones.

This library thus resembles using the action RTE_FLOW_ACTION_TYPE_COUNT, then
retrieved using rte_flow_query_count. The rte_flow_item aggregated with
the rte_flow_query_count structure could be sufficient to derive IPFIX
meters?

An application could then use this data for its IPFIX support.

>It will be more beneficial to shape this library to cover more use cases, please
>feel free to comment on possible other use case and desired functionalities.
>
>Thanks,
>ferruh
>
>cc: John McNamara <john.mcnamara@intel.com>
>cc: Maryam Tahhan <maryam.tahhan@intel.com>
>
>Ferruh Yigit (1):
>  flow_classify: add librte_flow_classify library
>
> config/common_base                                 |   5 +
> doc/api/doxy-api-index.md                          |   1 +
> doc/api/doxy-api.conf                              |   1 +
> doc/guides/rel_notes/release_17_05.rst             |   1 +
> lib/Makefile                                       |   2 +
> lib/librte_flow_classify/Makefile                  |  50 +++++
> lib/librte_flow_classify/rte_flow_classify.c       |  34 ++++
> lib/librte_flow_classify/rte_flow_classify.h       | 202 +++++++++++++++++++++
> .../rte_flow_classify_version.map                  |  10 +
> 9 files changed, 306 insertions(+)
> create mode 100644 lib/librte_flow_classify/Makefile
> create mode 100644 lib/librte_flow_classify/rte_flow_classify.c
> create mode 100644 lib/librte_flow_classify/rte_flow_classify.h
> create mode 100644 lib/librte_flow_classify/rte_flow_classify_version.map
>
>-- 
>2.9.3
>

-- 
Gaëtan Rivet
6WIND

  parent reply	other threads:[~2017-04-21 10:38 UTC|newest]

Thread overview: 145+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-20 18:54 Ferruh Yigit
2017-04-20 18:54 ` [dpdk-dev] [RFC 17.08] flow_classify: add librte_flow_classify library Ferruh Yigit
2017-05-04 11:35   ` Mcnamara, John
2017-05-16 22:19     ` Thomas Monjalon
2017-05-17 14:54   ` Ananyev, Konstantin
2017-05-17 15:37     ` Ferruh Yigit
2017-05-17 16:10       ` Ananyev, Konstantin
2017-05-18 12:12         ` Ferruh Yigit
2017-05-17 16:02     ` Ferruh Yigit
2017-05-17 16:18       ` Ananyev, Konstantin
2017-05-17 16:38       ` Gaëtan Rivet
2017-05-18 11:33         ` Ferruh Yigit
2017-05-18 20:31           ` Thomas Monjalon
2017-05-19  8:57             ` Ananyev, Konstantin
2017-05-19  9:11               ` Gaëtan Rivet
2017-05-19  9:40                 ` Ananyev, Konstantin
2017-05-19 10:11                 ` Thomas Monjalon
2017-05-22  9:13                   ` Adrien Mazarguil
2017-04-21 10:38 ` Gaëtan Rivet [this message]
2017-05-03  9:15   ` [dpdk-dev] [RFC 17.08] Flow classification library Mcnamara, John
2017-05-06 14:04     ` Morten Brørup
2017-05-09 13:37       ` Ferruh Yigit
2017-05-09 19:24         ` Morten Brørup
2017-05-17 11:26           ` Ferruh Yigit
2017-05-09 13:26   ` Ferruh Yigit
2017-05-18 18:12 ` [dpdk-dev] [RFC v2] " Ferruh Yigit
2017-05-18 18:12   ` [dpdk-dev] [RFC v2] flow_classify: add librte_flow_classify library Ferruh Yigit
2017-05-19 16:30   ` [dpdk-dev] [RFC v2] Flow classification library Iremonger, Bernard
2017-05-22 13:53     ` Ferruh Yigit
2017-05-23 12:26       ` Adrien Mazarguil
2017-05-23 12:58         ` Ferruh Yigit
2017-05-23 13:30           ` Adrien Mazarguil
2017-05-23 16:42             ` Ferruh Yigit
2017-05-25 15:46   ` [dpdk-dev] [RFC v3] " Ferruh Yigit
2017-05-25 15:46     ` [dpdk-dev] [RFC v3] flow_classify: add librte_flow_classify library Ferruh Yigit
2017-05-30 12:59       ` Iremonger, Bernard
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 0/6] Flow classification library Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 0/6] flow " Bernard Iremonger
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 0/5] " Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 " Bernard Iremonger
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 0/6] " Bernard Iremonger
2017-09-29  9:18               ` [dpdk-dev] [PATCH v6 0/4] " Bernard Iremonger
2017-10-02  9:31                 ` [dpdk-dev] [PATCH v7 " Bernard Iremonger
2017-10-17 20:26                   ` [dpdk-dev] [PATCH v8 " Bernard Iremonger
2017-10-22 13:32                     ` [dpdk-dev] [PATCH v9 " Bernard Iremonger
2017-10-23 15:16                       ` [dpdk-dev] [PATCH v10 " Bernard Iremonger
2017-10-23 20:59                         ` Thomas Monjalon
2017-10-24  8:40                           ` Iremonger, Bernard
2017-10-24  9:23                             ` Mcnamara, John
2017-10-24  9:38                               ` Thomas Monjalon
2017-10-24  9:53                                 ` Iremonger, Bernard
2017-10-24 10:25                                   ` Thomas Monjalon
2017-10-24 17:27                         ` [dpdk-dev] [PATCH v11 " Bernard Iremonger
2017-10-24 20:33                           ` Thomas Monjalon
2017-10-25  8:47                             ` Iremonger, Bernard
2017-10-25  8:56                               ` Thomas Monjalon
2017-10-24 17:28                         ` [dpdk-dev] [PATCH v11 1/4] flow_classify: add flow classify library Bernard Iremonger
2017-10-24 19:39                           ` Thomas Monjalon
2017-10-25 11:10                             ` Iremonger, Bernard
2017-10-25 12:13                               ` Thomas Monjalon
2017-10-24 19:41                           ` Thomas Monjalon
2017-10-24 19:43                           ` Thomas Monjalon
2017-10-24 20:05                           ` Thomas Monjalon
2017-10-24 20:16                           ` Thomas Monjalon
2017-10-24 20:18                           ` Thomas Monjalon
2017-10-24 17:28                         ` [dpdk-dev] [PATCH v11 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-10-24 20:13                           ` Thomas Monjalon
2017-10-24 17:28                         ` [dpdk-dev] [PATCH v11 3/4] test: add packet burst generator functions Bernard Iremonger
2017-10-24 17:28                         ` [dpdk-dev] [PATCH v11 4/4] test: flow classify library unit tests Bernard Iremonger
2017-10-23 15:16                       ` [dpdk-dev] [PATCH v10 1/4] librte_flow_classify: add flow classify library Bernard Iremonger
2017-10-23 16:03                         ` Singh, Jasvinder
2017-10-24  9:50                         ` Thomas Monjalon
2017-10-24 10:09                           ` Iremonger, Bernard
2017-10-23 15:16                       ` [dpdk-dev] [PATCH v10 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-10-23 16:04                         ` Singh, Jasvinder
2017-10-23 15:16                       ` [dpdk-dev] [PATCH v10 3/4] test: add packet burst generator functions Bernard Iremonger
2017-10-23 16:05                         ` Singh, Jasvinder
2017-10-23 15:16                       ` [dpdk-dev] [PATCH v10 4/4] test: flow classify library unit tests Bernard Iremonger
2017-10-23 16:06                         ` Singh, Jasvinder
2017-10-22 13:32                     ` [dpdk-dev] [PATCH v9 1/4] librte_flow_classify: add flow classify library Bernard Iremonger
2017-10-23 13:21                       ` Singh, Jasvinder
2017-10-23 13:37                         ` Iremonger, Bernard
2017-10-22 13:32                     ` [dpdk-dev] [PATCH v9 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-10-22 13:32                     ` [dpdk-dev] [PATCH v9 3/4] test: add packet burst generator functions Bernard Iremonger
2017-10-22 13:32                     ` [dpdk-dev] [PATCH v9 4/4] test: flow classify library unit tests Bernard Iremonger
2017-10-17 20:26                   ` [dpdk-dev] [PATCH v8 1/4] librte_flow_classify: add flow classify library Bernard Iremonger
2017-10-19 14:22                     ` Singh, Jasvinder
2017-10-20 16:59                       ` Iremonger, Bernard
2017-10-21 12:07                         ` Iremonger, Bernard
2017-10-17 20:26                   ` [dpdk-dev] [PATCH v8 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-10-17 20:26                   ` [dpdk-dev] [PATCH v8 3/4] test: add packet burst generator functions Bernard Iremonger
2017-10-17 20:26                   ` [dpdk-dev] [PATCH v8 4/4] test: flow classify library unit tests Bernard Iremonger
2017-10-02  9:31                 ` [dpdk-dev] [PATCH v7 1/4] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-10-06 15:00                   ` Singh, Jasvinder
2017-10-09  9:28                     ` Mcnamara, John
2017-10-13 15:39                     ` Iremonger, Bernard
2017-10-02  9:31                 ` [dpdk-dev] [PATCH v7 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-10-02  9:31                 ` [dpdk-dev] [PATCH v7 3/4] test: add packet burst generator functions Bernard Iremonger
2017-10-02  9:31                 ` [dpdk-dev] [PATCH v7 4/4] test: flow classify library unit tests Bernard Iremonger
2017-09-29  9:18               ` [dpdk-dev] [PATCH v6 1/4] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-09-29  9:18               ` [dpdk-dev] [PATCH v6 2/4] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-09-29  9:18               ` [dpdk-dev] [PATCH v6 3/4] test: add packet burst generator functions Bernard Iremonger
2017-09-29  9:18               ` [dpdk-dev] [PATCH v6 4/4] test: flow classify library unit tests Bernard Iremonger
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 1/6] librte_table: fix acl entry add and delete functions Bernard Iremonger
2017-09-18 15:29               ` Singh, Jasvinder
2017-09-20 12:21                 ` Dumitrescu, Cristian
2017-09-29  8:25                   ` Iremonger, Bernard
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 2/6] librte_table: fix acl lookup function Bernard Iremonger
2017-09-20 12:24               ` Dumitrescu, Cristian
2017-09-29  8:27                 ` Iremonger, Bernard
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 3/6] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 4/6] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 5/6] test: add packet burst generator functions Bernard Iremonger
2017-09-07 16:43             ` [dpdk-dev] [PATCH v5 6/6] test: flow classify library unit tests Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 1/5] librte_table: fix acl entry add and delete functions Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 2/5] librte_table: fix acl lookup function Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 3/5] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 4/5] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-09-06 10:27           ` [dpdk-dev] [PATCH v4 5/5] test: flow classify library unit tests Bernard Iremonger
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 1/5] librte_table: fix acl entry add and delete functions Bernard Iremonger
2017-08-31 15:09           ` Pavan Nikhilesh Bhagavatula
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 2/5] librte_table: fix acl lookup function Bernard Iremonger
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 3/5] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-08-31 15:18           ` Pavan Nikhilesh Bhagavatula
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 4/5] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-08-31 14:54         ` [dpdk-dev] [PATCH v3 5/5] test: flow classify library unit tests Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 1/6] librte_table: fix acl entry add and delete functions Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 2/6] librte_table: fix acl lookup function Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 3/6] librte_ether: initialise IPv4 protocol mask for rte_flow Bernard Iremonger
2017-08-30 12:39         ` Adrien Mazarguil
2017-08-30 13:28           ` Iremonger, Bernard
2017-08-30 14:39             ` Adrien Mazarguil
2017-08-30 15:12               ` Iremonger, Bernard
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 4/6] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 5/6] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-08-25 16:10       ` [dpdk-dev] [PATCH v2 6/6] test: flow classify library unit tests Bernard Iremonger
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 1/6] librte_table: move structure to header file Bernard Iremonger
2017-08-23 14:13       ` Dumitrescu, Cristian
2017-08-23 14:32         ` Iremonger, Bernard
2017-08-28  8:48           ` Iremonger, Bernard
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 2/6] librte_table: fix acl entry add and delete functions Bernard Iremonger
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 3/6] librte_ether: initialise IPv4 protocol mask for rte_flow Bernard Iremonger
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 4/6] librte_flow_classify: add librte_flow_classify library Bernard Iremonger
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 5/6] examples/flow_classify: flow classify sample application Bernard Iremonger
2017-08-23 13:51     ` [dpdk-dev] [PATCH v1 6/6] test: flow classify library unit tests Bernard Iremonger

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