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From: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
To: Anoob <anoob.joseph@caviumnetworks.com>
Cc: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>,
	Radu Nicolau <radu.nicolau@intel.com>,
	dev@dpdk.org,
	Narayana Prasad <narayanaprasad.athreya@caviumnetworks.com>,
	Jerin Jacob <jerin.jacob@caviumnetworks.com>
Subject: Re: [dpdk-dev] [PATCH 2/2] examples/ipsec-secgw: add target queues in flow actions
Date: Thu, 30 Nov 2017 13:28:00 +0100	[thread overview]
Message-ID: <20171130122800.2cotiud5rdcaqzkm@laranjeiro-vm.dev.6wind.com> (raw)
In-Reply-To: <b7f4aecb-cbd6-e8e4-3061-2993be5de944@caviumnetworks.com>

Hi Annob,

On Thu, Nov 30, 2017 at 04:16:23PM +0530, Anoob wrote:
> On 11/29/2017 06:20 PM, Nelio Laranjeiro wrote:
> > Hi Anoob,
> > 
> > On Wed, Nov 29, 2017 at 06:00:38PM +0530, Anoob wrote:
> > >     Hi Nelio,
> > > 
> > >     Since support of RSS with inline crypto/protocol is hardware
> > >     implementation dependent, it would be better if there is some sort of
> > >     capability check before setting the flow parameters in the application.
> > > 
> > >     If the hardware doesn't support RSS with inline processing, then the RSS
> > >     flow action will have to be ignored in the driver. This wouldn't look
> > >     right from application's point of view. And also the PMD would need
> > >     application-specific logic to handle such cases, which may not scale well.
> > There is a real issue here, RTE_FLOW API needs a terminal action, security is
> > not one [1] you must have one of the followings: QUEUE, DROP, RSS, PF,
> > VF or PASSTHRU.
> > 
> > Flow API does not work with "capabilities" as the application can verify
> > the rule using the validate().  If it cannot be validated the
> > application can test another kind of rule until the PMD returns a
> > success.
> > 
> > Here, I am proposing the RSS as RSS with a single queue is equivalent to queue.
> > 
> > On Mellanox NIC we need the RSS or QUEUE in ingress and for Egress PASSTHRU
> > is good.
> > 
> > What are your needs?
> Thanks for the clarification. Understood the issue here. On Cavium hardware
> SECURITY will be terminating.

You should finalise with PASSTHRU to be compliant with the API,
otherwise application makers won't understand why it does not work
according to the API implementation.

> So a better approach would be to first check from the application
> (using rte_flow_verify()) if SECURITY is terminating action. If it
> fails, then application can do RSS/QUEUE. That should solve
> the issue.
<snip>

I think we have an agreement here, in order the final action to be
tested:

 1. PASSTHRU
 2. RSS
 3. QUEUE

If those 3 fails, the functions fails to create the rule, the first
succeeding is the one applied.

Do you agree?

Thanks,

-- 
Nélio Laranjeiro
6WIND

  reply	other threads:[~2017-11-30 12:27 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-23 15:12 [dpdk-dev] [PATCH 1/2] examples/ipsec-secgw: fix missing ingress flow attribute Nelio Laranjeiro
2017-11-23 15:12 ` [dpdk-dev] [PATCH 2/2] examples/ipsec-secgw: add target queues in flow actions Nelio Laranjeiro
2017-11-29 12:30   ` Anoob
2017-11-29 12:50     ` Nelio Laranjeiro
2017-11-30 10:46       ` Anoob
2017-11-30 12:28         ` Nelio Laranjeiro [this message]
2017-12-01 15:04           ` Anoob Joseph
2017-12-01 16:26             ` Nelio Laranjeiro
2017-12-04 14:11   ` [dpdk-dev] [PATCH v2 1/2] examples/ipsec-secgw: fix missing ingress flow attribute Nelio Laranjeiro
2017-12-11 11:50     ` Radu Nicolau
2017-12-04 14:11   ` [dpdk-dev] [PATCH v2 2/2] examples/ipsec-secgw: add target queues in flow actions Nelio Laranjeiro
2017-12-07  9:47     ` Anoob
2017-12-07 12:22       ` Nelio Laranjeiro
2017-12-08 14:00     ` Anoob
2017-12-08 14:40       ` Nelio Laranjeiro
2017-12-08 16:40         ` Anoob Joseph
2017-12-11  8:21           ` Nelio Laranjeiro
2017-12-11  9:00             ` Anoob
2017-12-11 14:04     ` [dpdk-dev] [PATCH v3 1/2] examples/ipsec-secgw: fix missing ingress flow attribute Nelio Laranjeiro
2017-12-12  7:14       ` Anoob Joseph
2017-12-11 14:04     ` [dpdk-dev] [PATCH v3 2/2] examples/ipsec-secgw: add target queues in flow actions Nelio Laranjeiro
2017-12-12 12:43       ` Anoob Joseph
2017-12-12 13:44         ` Nelio Laranjeiro
2017-12-12 14:04           ` Anoob Joseph
2017-12-12 14:38             ` Nelio Laranjeiro
2017-12-13  6:41               ` Anoob Joseph
2017-12-13 10:02                 ` Nelio Laranjeiro
2017-12-13 11:38                   ` Anoob Joseph
2017-12-13 12:53                     ` Nelio Laranjeiro
2017-12-13 13:53                       ` Anoob Joseph
2017-12-13 14:47                         ` Nelio Laranjeiro
2017-12-20 16:19                           ` Boris Pismenny
2017-12-21  8:06                             ` Anoob Joseph
2017-12-21 10:12                               ` Boris Pismenny
2017-12-21 14:22                                 ` Adrien Mazarguil
2018-01-05  6:18                                   ` Anoob Joseph
2018-01-09 12:48                                     ` Nelio Laranjeiro
2018-01-10  6:21                                       ` Anoob Joseph
2018-01-05  5:52                                 ` Anoob Joseph
2017-12-14 15:14       ` [dpdk-dev] [PATCH v4 1/3] examples/ipsec-secgw: fix missing ingress flow attribute Nelio Laranjeiro
2017-12-14 15:14       ` [dpdk-dev] [PATCH v4 2/3] examples/ipsec-secgw: add target queues in flow actions Nelio Laranjeiro
2017-12-18  8:23         ` Anoob Joseph
2017-12-18  9:57           ` Nélio Laranjeiro
2017-12-14 15:14       ` [dpdk-dev] [PATCH v4 3/3] examples/ipsec-secgw: add Egress " Nelio Laranjeiro
2017-12-15  9:05         ` Anoob Joseph
2017-12-15 13:53           ` Nelio Laranjeiro
2017-12-15 15:39             ` Anoob Joseph
2017-12-15 16:53               ` Nelio Laranjeiro
2017-12-15 17:01                 ` Anoob Joseph
2017-12-18 10:24         ` [dpdk-dev] [PATCH v5 1/3] examples/ipsec-secgw: fix missing ingress flow attribute Nelio Laranjeiro
2018-01-18 14:50           ` De Lara Guarch, Pablo
2017-12-18 10:24         ` [dpdk-dev] [PATCH v5 2/3] examples/ipsec-secgw: add target queues in flow actions Nelio Laranjeiro
2017-12-19  6:22           ` Anoob Joseph
2017-12-18 10:24         ` [dpdk-dev] [PATCH v5 3/3] examples/ipsec-secgw: add Egress " Nelio Laranjeiro
2018-01-08 16:13           ` De Lara Guarch, Pablo
2018-01-16 16:12           ` Nicolau, Radu

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