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From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
To: Akhil Goyal <akhil.goyal@nxp.com>, "dev@dpdk.org" <dev@dpdk.org>
Cc: "Zhang, Roy Fan" <roy.fan.zhang@intel.com>,
	"Doherty, Declan" <declan.doherty@intel.com>,
	"De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>
Subject: Re: [dpdk-dev] [RFC PATCH 1/9] security: introduce CPU Crypto action type and API
Date: Fri, 6 Sep 2019 13:27:07 +0000
Message-ID: <2601191342CEEE43887BDE71AB9772580191926A17@irsmsx105.ger.corp.intel.com> (raw)
In-Reply-To: <VE1PR04MB663938E4E1740B6E5D6221F4E6BA0@VE1PR04MB6639.eurprd04.prod.outlook.com>

Hi Akhil,

> > This action type allows the burst of symmetric crypto workload using the same
> > algorithm, key, and direction being processed by CPU cycles synchronously.
> > This flexible action type does not require external hardware involvement,
> > having the crypto workload processed synchronously, and is more performant
> > than Cryptodev SW PMD due to the saved cycles on removed "async mode
> > simulation" as well as 3 cacheline access of the crypto ops.
> 
> Does that mean application will not call the cryptodev_enqueue_burst and corresponding dequeue burst.

Yes, instead it just call rte_security_process_cpu_crypto_bulk(...)

> It would be a new API something like process_packets and it will have the crypto processed packets while returning from the API?

Yes, though the plan is that API will operate on raw data buffers, not mbufs.

> 
> I still do not understand why we cannot do with the conventional crypto lib only.
> As far as I can understand, you are not doing any protocol processing or any value add
> To the crypto processing. IMO, you just need a synchronous crypto processing API which
> Can be defined in cryptodev, you don't need to re-create a crypto session in the name of
> Security session in the driver just to do a synchronous processing.

I suppose your question is why not to have rte_crypot_process_cpu_crypto_bulk(...) instead?
The main reason is that would require disruptive changes in existing cryptodev API
(would cause ABI/API breakage).
Session for  RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO need some extra information
that normal crypto_sym_xform doesn't contain 
(cipher offset from the start of the buffer, might be something extra in future).
Also right now there is no way to add new type of crypto_sym_session without
either breaking existing crypto-dev ABI/API or introducing new structure 
(rte_crypto_sym_cpu_session or so) for that.   
While rte_security is designed in a way that we can add new session types and
related parameters without causing API/ABI breakage. 

BTW, what is your concern with proposed approach (via rte_security)?
From my perspective it is a lightweight change and it is totally optional
for the crypto PMDs to support it or not.
Konstantin 

> >
> > AESNI-GCM and AESNI-MB PMDs are updated with this support. There is a small
> > performance test app under app/test/security_aesni_gcm(mb)_perftest to
> > prove.
> >
> > For the new API
> > The packet is sent to the crypto device for symmetric crypto
> > processing. The device will encrypt or decrypt the buffer based on the session
> > data specified and preprocessed in the security session. Different
> > than the inline or lookaside modes, when the function exits, the user will
> > expect the buffers are either processed successfully, or having the error number
> > assigned to the appropriate index of the status array.
> >
> > Will update the program's guide in the v1 patch.
> >
> > Regards,
> > Fan
> >
> > > -----Original Message-----
> > > From: Akhil Goyal [mailto:akhil.goyal@nxp.com]
> > > Sent: Wednesday, September 4, 2019 11:33 AM
> > > To: Zhang, Roy Fan <roy.fan.zhang@intel.com>; dev@dpdk.org
> > > Cc: Ananyev, Konstantin <konstantin.ananyev@intel.com>; Doherty, Declan
> > > <declan.doherty@intel.com>; De Lara Guarch, Pablo
> > > <pablo.de.lara.guarch@intel.com>
> > > Subject: RE: [RFC PATCH 1/9] security: introduce CPU Crypto action type and
> > > API
> > >
> > > Hi Fan,
> > >
> > > >
> > > > This patch introduce new RTE_SECURITY_ACTION_TYPE_CPU_CRYPTO
> > > action
> > > > type to security library. The type represents performing crypto
> > > > operation with CPU cycles. The patch also includes a new API to
> > > > process crypto operations in bulk and the function pointers for PMDs.
> > > >
> > > I am not able to get the flow of execution for this action type. Could you
> > > please elaborate the flow in the documentation. If not in documentation
> > > right now, then please elaborate the flow in cover letter.
> > > Also I see that there are new APIs for processing crypto operations in bulk.
> > > What does that mean. How are they different from the existing APIs which
> > > are also handling bulk crypto ops depending on the budget.
> > >
> > >
> > > -Akhil


  parent reply index

Thread overview: 87+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-03 15:40 [dpdk-dev] [RFC PATCH 0/9] security: add software synchronous crypto process Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 1/9] security: introduce CPU Crypto action type and API Fan Zhang
2019-09-04 10:32   ` Akhil Goyal
2019-09-04 13:06     ` Zhang, Roy Fan
2019-09-06  9:01       ` Akhil Goyal
2019-09-06 13:12         ` Zhang, Roy Fan
2019-09-10 11:25           ` Akhil Goyal
2019-09-11 13:01             ` Ananyev, Konstantin
2019-09-06 13:27         ` Ananyev, Konstantin [this message]
2019-09-10 10:44           ` Akhil Goyal
2019-09-11 12:29             ` Ananyev, Konstantin
2019-09-12 14:12               ` Akhil Goyal
2019-09-16 14:53                 ` Ananyev, Konstantin
2019-09-16 15:08                   ` Ananyev, Konstantin
2019-09-17  6:02                   ` Akhil Goyal
2019-09-18  7:44                     ` Ananyev, Konstantin
2019-09-25 18:24                       ` Ananyev, Konstantin
2019-09-27  9:26                         ` Akhil Goyal
2019-09-30 12:22                           ` Ananyev, Konstantin
2019-09-30 13:43                             ` Akhil Goyal
2019-10-01 14:49                               ` Ananyev, Konstantin
2019-10-03 13:24                                 ` Akhil Goyal
2019-10-07 12:53                                   ` Ananyev, Konstantin
2019-10-09  7:20                                     ` Akhil Goyal
2019-10-09 13:43                                       ` Ananyev, Konstantin
2019-10-11 13:23                                         ` Akhil Goyal
2019-10-13 23:07                                           ` Zhang, Roy Fan
2019-10-14 11:10                                             ` Ananyev, Konstantin
2019-10-15 15:02                                               ` Akhil Goyal
2019-10-16 13:04                                                 ` Ananyev, Konstantin
2019-10-15 15:00                                             ` Akhil Goyal
2019-10-16 22:07                                           ` Ananyev, Konstantin
2019-10-17 12:49                                             ` Ananyev, Konstantin
2019-10-18 13:17                                             ` Akhil Goyal
2019-10-21 13:47                                               ` Ananyev, Konstantin
2019-10-22 13:31                                                 ` Akhil Goyal
2019-10-22 17:44                                                   ` Ananyev, Konstantin
2019-10-22 22:21                                                     ` Ananyev, Konstantin
2019-10-23 10:05                                                     ` Akhil Goyal
2019-10-30 14:23                                                       ` Ananyev, Konstantin
2019-11-01 13:53                                                         ` Akhil Goyal
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 2/9] crypto/aesni_gcm: add rte_security handler Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 3/9] app/test: add security cpu crypto autotest Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 4/9] app/test: add security cpu crypto perftest Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 5/9] crypto/aesni_mb: add rte_security handler Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 6/9] app/test: add aesni_mb security cpu crypto autotest Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 7/9] app/test: add aesni_mb security cpu crypto perftest Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 8/9] ipsec: add rte_security cpu_crypto action support Fan Zhang
2019-09-03 15:40 ` [dpdk-dev] [RFC PATCH 9/9] examples/ipsec-secgw: add security " Fan Zhang
2019-09-06 13:13 ` [dpdk-dev] [PATCH 00/10] security: add software synchronous crypto process Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 01/10] security: introduce CPU Crypto action type and API Fan Zhang
2019-09-18 12:45     ` Ananyev, Konstantin
2019-09-29  6:00     ` Hemant Agrawal
2019-09-29 16:59       ` Ananyev, Konstantin
2019-09-30  9:43         ` Hemant Agrawal
2019-10-01 15:27           ` Ananyev, Konstantin
2019-10-02  2:47             ` Hemant Agrawal
2019-09-06 13:13   ` [dpdk-dev] [PATCH 02/10] crypto/aesni_gcm: add rte_security handler Fan Zhang
2019-09-18 10:24     ` Ananyev, Konstantin
2019-09-06 13:13   ` [dpdk-dev] [PATCH 03/10] app/test: add security cpu crypto autotest Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 04/10] app/test: add security cpu crypto perftest Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 05/10] crypto/aesni_mb: add rte_security handler Fan Zhang
2019-09-18 15:20     ` Ananyev, Konstantin
2019-09-06 13:13   ` [dpdk-dev] [PATCH 06/10] app/test: add aesni_mb security cpu crypto autotest Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 07/10] app/test: add aesni_mb security cpu crypto perftest Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 08/10] ipsec: add rte_security cpu_crypto action support Fan Zhang
2019-09-26 23:20     ` Ananyev, Konstantin
2019-09-27 10:38     ` Ananyev, Konstantin
2019-09-06 13:13   ` [dpdk-dev] [PATCH 09/10] examples/ipsec-secgw: add security " Fan Zhang
2019-09-06 13:13   ` [dpdk-dev] [PATCH 10/10] doc: update security cpu process description Fan Zhang
2019-09-09 12:43   ` [dpdk-dev] [PATCH 00/10] security: add software synchronous crypto process Aaron Conole
2019-10-07 16:28   ` [dpdk-dev] [PATCH v2 " Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 01/10] security: introduce CPU Crypto action type and API Fan Zhang
2019-10-08 13:42       ` Ananyev, Konstantin
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 02/10] crypto/aesni_gcm: add rte_security handler Fan Zhang
2019-10-08 13:44       ` Ananyev, Konstantin
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 03/10] app/test: add security cpu crypto autotest Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 04/10] app/test: add security cpu crypto perftest Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 05/10] crypto/aesni_mb: add rte_security handler Fan Zhang
2019-10-08 16:23       ` Ananyev, Konstantin
2019-10-09  8:29       ` Ananyev, Konstantin
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 06/10] app/test: add aesni_mb security cpu crypto autotest Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 07/10] app/test: add aesni_mb security cpu crypto perftest Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 08/10] ipsec: add rte_security cpu_crypto action support Fan Zhang
2019-10-08 23:28       ` Ananyev, Konstantin
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 09/10] examples/ipsec-secgw: add security " Fan Zhang
2019-10-07 16:28     ` [dpdk-dev] [PATCH v2 10/10] doc: update security cpu process description Fan Zhang

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