* [dpdk-dev] [RFC] mark asym session-buffer non-reuseable @ 2019-07-17 12:34 Ayuj Verma 2019-07-17 12:34 ` [dpdk-dev] [RFC] lib/crypto: " Ayuj Verma 2019-07-17 14:10 ` [dpdk-dev] [RFC] " Kusztal, ArkadiuszX 0 siblings, 2 replies; 10+ messages in thread From: Ayuj Verma @ 2019-07-17 12:34 UTC (permalink / raw) To: akhil.goyal Cc: arkadiuszx.kusztal, fiona.trahe, shallyv, ssahu, kkotamarthy, dev, Ayuj Verma This RFC proposes changes in asymmetric session usability of transform structure. In current implementation asym xform is seen as temporary entity that can be re-used by application once sessions are initialized with it. This enforces PMD to copy all key buffers during session setup time. Since life-time of sessions are small, so we can hold these buffers with session, reducing memcpy time by marking these as read-only so that PMDs which doesn’t require any manipulation of xform data can directly use these buffers in session configure. So, sending a proposal to mark xform as non-reusable till lifetime of session. This will help PMDs to reduce session setup time. Ayuj Verma (1): lib/crypto: mark asym session-buffer non-reuseable doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) -- 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [dpdk-dev] [RFC] lib/crypto: mark asym session-buffer non-reuseable 2019-07-17 12:34 [dpdk-dev] [RFC] mark asym session-buffer non-reuseable Ayuj Verma @ 2019-07-17 12:34 ` Ayuj Verma 2019-07-17 14:03 ` Trahe, Fiona 2019-07-17 14:10 ` [dpdk-dev] [RFC] " Kusztal, ArkadiuszX 1 sibling, 1 reply; 10+ messages in thread From: Ayuj Verma @ 2019-07-17 12:34 UTC (permalink / raw) To: akhil.goyal Cc: arkadiuszx.kusztal, fiona.trahe, shallyv, ssahu, kkotamarthy, dev, Ayuj Verma Update asym xform usage in cryptodev documentation. Xform are immutable, non-reuseable entity till life time of session. This allow some PMD to optimize session setup time. Signed-off-by: Ayuj Verma <ayverma@marvell.com> Signed-off-by: Shally Verma <shallyv@marvell.com> --- doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst index 9719944..c97a239 100644 --- a/doc/guides/prog_guide/cryptodev_lib.rst +++ b/doc/guides/prog_guide/cryptodev_lib.rst @@ -894,6 +894,12 @@ asymmetric crypto chaining is Diffie-Hellman private key generation followed by public generation. Also, currently API does not support chaining of symmetric and asymmetric crypto xforms. +Transform is attached to session during asym session initialization and can't be +modified during session configuration. It remains constant till the end of life +span of a session. It should be used as it is in PMD, PMDs which requires +modification of these immutable data should internally do memcpy of data and +perform required operations. + Each xform defines specific asymmetric crypto algo. Currently supported are: * RSA * Modular operations (Exponentiation and Inverse) diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h index defe05e..1f083ea 100644 --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h @@ -290,7 +290,7 @@ typedef int (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, * - Returns -ENOMEM if the private session could not be allocated. */ typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev *dev, - struct rte_crypto_asym_xform *xform, + const struct rte_crypto_asym_xform *xform, struct rte_cryptodev_asym_session *session, struct rte_mempool *mp); /** -- 1.8.3.1 ^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] lib/crypto: mark asym session-buffer non-reuseable 2019-07-17 12:34 ` [dpdk-dev] [RFC] lib/crypto: " Ayuj Verma @ 2019-07-17 14:03 ` Trahe, Fiona 2019-07-17 14:10 ` Kusztal, ArkadiuszX 0 siblings, 1 reply; 10+ messages in thread From: Trahe, Fiona @ 2019-07-17 14:03 UTC (permalink / raw) To: Ayuj Verma, akhil.goyal Cc: Kusztal, ArkadiuszX, shallyv, ssahu, kkotamarthy, dev, Trahe, Fiona Hi Ayuj, > -----Original Message----- > From: Ayuj Verma [mailto:ayverma@marvell.com] > Sent: Wednesday, July 17, 2019 1:34 PM > To: akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona <fiona.trahe@intel.com>; > shallyv@marvell.com; ssahu@marvell.com; kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > <ayverma@marvell.com> > Subject: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > Update asym xform usage in cryptodev documentation. > > Xform are immutable, non-reuseable entity till > life time of session. This allow some PMD to optimize > session setup time. > > Signed-off-by: Ayuj Verma <ayverma@marvell.com> > Signed-off-by: Shally Verma <shallyv@marvell.com> > --- > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > diff --git a/doc/guides/prog_guide/cryptodev_lib.rst b/doc/guides/prog_guide/cryptodev_lib.rst > index 9719944..c97a239 100644 > --- a/doc/guides/prog_guide/cryptodev_lib.rst > +++ b/doc/guides/prog_guide/cryptodev_lib.rst > @@ -894,6 +894,12 @@ asymmetric crypto chaining is Diffie-Hellman private key generation followed > by > public generation. Also, currently API does not support chaining of symmetric and > asymmetric crypto xforms. > > +Transform is attached to session during asym session initialization and can't be > +modified during session configuration. It remains constant till the end of life [Fiona] I agree with the intent of the RFC. And suggest being more explicit and saying "It and all the data buffers it points to should remain constant..." > +span of a session. It should be used as it is in PMD, PMDs which requires > +modification of these immutable data should internally do memcpy of data and > +perform required operations. [Fiona] for security I suggest adding here "It's the PMDs responsibility to ensure that any private data copied to local PMD storage is not stored by the PMD for longer than the session lifetime. > Each xform defines specific asymmetric crypto algo. Currently supported are: > * RSA > * Modular operations (Exponentiation and Inverse) > diff --git a/lib/librte_cryptodev/rte_cryptodev_pmd.h b/lib/librte_cryptodev/rte_cryptodev_pmd.h > index defe05e..1f083ea 100644 > --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h > +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h > @@ -290,7 +290,7 @@ typedef int (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, > * - Returns -ENOMEM if the private session could not be allocated. > */ > typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev *dev, > - struct rte_crypto_asym_xform *xform, > + const struct rte_crypto_asym_xform *xform, > struct rte_cryptodev_asym_session *session, > struct rte_mempool *mp); > /** > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] lib/crypto: mark asym session-buffer non-reuseable 2019-07-17 14:03 ` Trahe, Fiona @ 2019-07-17 14:10 ` Kusztal, ArkadiuszX 2019-07-18 9:56 ` Ayuj Verma 0 siblings, 1 reply; 10+ messages in thread From: Kusztal, ArkadiuszX @ 2019-07-17 14:10 UTC (permalink / raw) To: Trahe, Fiona, Ayuj Verma, akhil.goyal; +Cc: shallyv, ssahu, kkotamarthy, dev > -----Original Message----- > From: Trahe, Fiona > Sent: Wednesday, July 17, 2019 4:04 PM > To: Ayuj Verma <ayverma@marvell.com>; akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; > shallyv@marvell.com; ssahu@marvell.com; kkotamarthy@marvell.com; > dev@dpdk.org; Trahe, Fiona <fiona.trahe@intel.com> > Subject: RE: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > Hi Ayuj, > > > -----Original Message----- > > From: Ayuj Verma [mailto:ayverma@marvell.com] > > Sent: Wednesday, July 17, 2019 1:34 PM > > To: akhil.goyal@nxp.com > > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > > <ayverma@marvell.com> > > Subject: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > > > Update asym xform usage in cryptodev documentation. > > > > Xform are immutable, non-reuseable entity till life time of session. > > This allow some PMD to optimize session setup time. > > > > Signed-off-by: Ayuj Verma <ayverma@marvell.com> > > Signed-off-by: Shally Verma <shallyv@marvell.com> > > --- > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > > 2 files changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/doc/guides/prog_guide/cryptodev_lib.rst > > b/doc/guides/prog_guide/cryptodev_lib.rst > > index 9719944..c97a239 100644 > > --- a/doc/guides/prog_guide/cryptodev_lib.rst > > +++ b/doc/guides/prog_guide/cryptodev_lib.rst > > @@ -894,6 +894,12 @@ asymmetric crypto chaining is Diffie-Hellman > > private key generation followed by public generation. Also, currently > > API does not support chaining of symmetric and asymmetric crypto > > xforms. > > > > +Transform is attached to session during asym session initialization > > +and can't be modified during session configuration. It remains > > +constant till the end of life > [Fiona] I agree with the intent of the RFC. And suggest being more explicit > and saying "It and all the data buffers it points to should remain constant..." [AK] I agree with RFC and Fiona :). > > > +span of a session. It should be used as it is in PMD, PMDs which > > +requires modification of these immutable data should internally do > > +memcpy of data and perform required operations. > [Fiona] for security I suggest adding here "It's the PMDs responsibility to > ensure that any private data copied to local PMD storage is not stored by the > PMD for longer than the session lifetime. > > > Each xform defines specific asymmetric crypto algo. Currently supported > are: > > * RSA > > * Modular operations (Exponentiation and Inverse) diff --git > > a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > index defe05e..1f083ea 100644 > > --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > @@ -290,7 +290,7 @@ typedef int > (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, > > * - Returns -ENOMEM if the private session could not be allocated. > > */ > > typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev > *dev, > > - struct rte_crypto_asym_xform *xform, > > + const struct rte_crypto_asym_xform *xform, > > struct rte_cryptodev_asym_session *session, > > struct rte_mempool *mp); > > /** > > -- > > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] lib/crypto: mark asym session-buffer non-reuseable 2019-07-17 14:10 ` Kusztal, ArkadiuszX @ 2019-07-18 9:56 ` Ayuj Verma 2019-07-18 10:49 ` Ayuj Verma 0 siblings, 1 reply; 10+ messages in thread From: Ayuj Verma @ 2019-07-18 9:56 UTC (permalink / raw) To: Kusztal, ArkadiuszX, Trahe, Fiona, akhil.goyal Cc: Shally Verma, Sunila Sahu, Kanaka Durga Kotamarthy, dev Hi Arek, Fiona Please see in-line. Thanks and regards Ayuj Verma ________________________________ From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com> Sent: 17 July 2019 19:40 To: Trahe, Fiona; Ayuj Verma; akhil.goyal@nxp.com Cc: Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: RE: [RFC] lib/crypto: mark asym session-buffer non-reuseable > -----Original Message----- > From: Trahe, Fiona > Sent: Wednesday, July 17, 2019 4:04 PM > To: Ayuj Verma <ayverma@marvell.com>; akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; > shallyv@marvell.com; ssahu@marvell.com; kkotamarthy@marvell.com; > dev@dpdk.org; Trahe, Fiona <fiona.trahe@intel.com> > Subject: RE: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > Hi Ayuj, > > > -----Original Message----- > > From: Ayuj Verma [mailto:ayverma@marvell.com] > > Sent: Wednesday, July 17, 2019 1:34 PM > > To: akhil.goyal@nxp.com > > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > > <ayverma@marvell.com> > > Subject: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > > > Update asym xform usage in cryptodev documentation. > > > > Xform are immutable, non-reuseable entity till life time of session. > > This allow some PMD to optimize session setup time. > > > > Signed-off-by: Ayuj Verma <ayverma@marvell.com> > > Signed-off-by: Shally Verma <shallyv@marvell.com> > > --- > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > > 2 files changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/doc/guides/prog_guide/cryptodev_lib.rst > > b/doc/guides/prog_guide/cryptodev_lib.rst > > index 9719944..c97a239 100644 > > --- a/doc/guides/prog_guide/cryptodev_lib.rst > > +++ b/doc/guides/prog_guide/cryptodev_lib.rst > > @@ -894,6 +894,12 @@ asymmetric crypto chaining is Diffie-Hellman > > private key generation followed by public generation. Also, currently > > API does not support chaining of symmetric and asymmetric crypto > > xforms. > > > > +Transform is attached to session during asym session initialization > > +and can't be modified during session configuration. It remains > > +constant till the end of life > [Fiona] I agree with the intent of the RFC. And suggest being more explicit > and saying "It and all the data buffers it points to should remain constant..." [AK] I agree with RFC and Fiona :). [Ayuj] ACK. will submit a v2. > > > +span of a session. It should be used as it is in PMD, PMDs which > > +requires modification of these immutable data should internally do > > +memcpy of data and perform required operations. > [Fiona] for security I suggest adding here "It's the PMDs responsibility to > ensure that any private data copied to local PMD storage is not stored by the > PMD for longer than the session lifetime. > > > Each xform defines specific asymmetric crypto algo. Currently supported > are: > > * RSA > > * Modular operations (Exponentiation and Inverse) diff --git > > a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > index defe05e..1f083ea 100644 > > --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > @@ -290,7 +290,7 @@ typedef int > (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, > > * - Returns -ENOMEM if the private session could not be allocated. > > */ > > typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev > *dev, > > - struct rte_crypto_asym_xform *xform, > > + const struct rte_crypto_asym_xform *xform, > > struct rte_cryptodev_asym_session *session, > > struct rte_mempool *mp); > > /** > > -- > > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] lib/crypto: mark asym session-buffer non-reuseable 2019-07-18 9:56 ` Ayuj Verma @ 2019-07-18 10:49 ` Ayuj Verma 0 siblings, 0 replies; 10+ messages in thread From: Ayuj Verma @ 2019-07-18 10:49 UTC (permalink / raw) To: Kusztal, ArkadiuszX, Trahe, Fiona, akhil.goyal Cc: Shally Verma, Sunila Sahu, Kanaka Durga Kotamarthy, dev Hi Arek, Fiona, > [Fiona] I agree with the intent of the RFC. And suggest being more explicit > and saying "It and all the data buffers it points to should remain constant..." [AK] I agree with RFC and Fiona :). [Ayuj] ACK. will submit a v2. >> Correction: Will incorporate this in Patch v1. Thanks and regards Ayuj Verma ________________________________ From: Ayuj Verma Sent: 18 July 2019 15:26 To: Kusztal, ArkadiuszX; Trahe, Fiona; akhil.goyal@nxp.com Cc: Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: Re: [RFC] lib/crypto: mark asym session-buffer non-reuseable Hi Arek, Fiona Please see in-line. Thanks and regards Ayuj Verma ________________________________ From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com> Sent: 17 July 2019 19:40 To: Trahe, Fiona; Ayuj Verma; akhil.goyal@nxp.com Cc: Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: RE: [RFC] lib/crypto: mark asym session-buffer non-reuseable > -----Original Message----- > From: Trahe, Fiona > Sent: Wednesday, July 17, 2019 4:04 PM > To: Ayuj Verma <ayverma@marvell.com>; akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; > shallyv@marvell.com; ssahu@marvell.com; kkotamarthy@marvell.com; > dev@dpdk.org; Trahe, Fiona <fiona.trahe@intel.com> > Subject: RE: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > Hi Ayuj, > > > -----Original Message----- > > From: Ayuj Verma [mailto:ayverma@marvell.com] > > Sent: Wednesday, July 17, 2019 1:34 PM > > To: akhil.goyal@nxp.com > > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > > <ayverma@marvell.com> > > Subject: [RFC] lib/crypto: mark asym session-buffer non-reuseable > > > > Update asym xform usage in cryptodev documentation. > > > > Xform are immutable, non-reuseable entity till life time of session. > > This allow some PMD to optimize session setup time. > > > > Signed-off-by: Ayuj Verma <ayverma@marvell.com> > > Signed-off-by: Shally Verma <shallyv@marvell.com> > > --- > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > > 2 files changed, 7 insertions(+), 1 deletion(-) > > > > diff --git a/doc/guides/prog_guide/cryptodev_lib.rst > > b/doc/guides/prog_guide/cryptodev_lib.rst > > index 9719944..c97a239 100644 > > --- a/doc/guides/prog_guide/cryptodev_lib.rst > > +++ b/doc/guides/prog_guide/cryptodev_lib.rst > > @@ -894,6 +894,12 @@ asymmetric crypto chaining is Diffie-Hellman > > private key generation followed by public generation. Also, currently > > API does not support chaining of symmetric and asymmetric crypto > > xforms. > > > > +Transform is attached to session during asym session initialization > > +and can't be modified during session configuration. It remains > > +constant till the end of life > [Fiona] I agree with the intent of the RFC. And suggest being more explicit > and saying "It and all the data buffers it points to should remain constant..." [AK] I agree with RFC and Fiona :). [Ayuj] ACK. will submit a v2. > > > +span of a session. It should be used as it is in PMD, PMDs which > > +requires modification of these immutable data should internally do > > +memcpy of data and perform required operations. > [Fiona] for security I suggest adding here "It's the PMDs responsibility to > ensure that any private data copied to local PMD storage is not stored by the > PMD for longer than the session lifetime. > > > Each xform defines specific asymmetric crypto algo. Currently supported > are: > > * RSA > > * Modular operations (Exponentiation and Inverse) diff --git > > a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > index defe05e..1f083ea 100644 > > --- a/lib/librte_cryptodev/rte_cryptodev_pmd.h > > +++ b/lib/librte_cryptodev/rte_cryptodev_pmd.h > > @@ -290,7 +290,7 @@ typedef int > (*cryptodev_sym_configure_session_t)(struct rte_cryptodev *dev, > > * - Returns -ENOMEM if the private session could not be allocated. > > */ > > typedef int (*cryptodev_asym_configure_session_t)(struct rte_cryptodev > *dev, > > - struct rte_crypto_asym_xform *xform, > > + const struct rte_crypto_asym_xform *xform, > > struct rte_cryptodev_asym_session *session, > > struct rte_mempool *mp); > > /** > > -- > > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] mark asym session-buffer non-reuseable 2019-07-17 12:34 [dpdk-dev] [RFC] mark asym session-buffer non-reuseable Ayuj Verma 2019-07-17 12:34 ` [dpdk-dev] [RFC] lib/crypto: " Ayuj Verma @ 2019-07-17 14:10 ` Kusztal, ArkadiuszX 2019-07-18 9:47 ` Ayuj Verma 1 sibling, 1 reply; 10+ messages in thread From: Kusztal, ArkadiuszX @ 2019-07-17 14:10 UTC (permalink / raw) To: Ayuj Verma, akhil.goyal; +Cc: Trahe, Fiona, shallyv, ssahu, kkotamarthy, dev Hi Ayuj, > -----Original Message----- > From: Ayuj Verma [mailto:ayverma@marvell.com] > Sent: Wednesday, July 17, 2019 2:34 PM > To: akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > <ayverma@marvell.com> > Subject: [RFC] mark asym session-buffer non-reuseable > > This RFC proposes changes in asymmetric session usability of transform > structure. In current implementation asym xform is seen as temporary entity > that can be re-used by application once sessions are initialized with it. > > This enforces PMD to copy all key buffers during session setup time. Since > life-time of sessions are small, so we can hold these buffers with session, [AK] - what is you expected session lifetime? (2,3,50 packets?) > reducing memcpy time by marking these as read-only so that PMDs which > doesn’t require any manipulation of xform data can directly use these > buffers in session configure. > > So, sending a proposal to mark xform as non-reusable till lifetime of session. > This will help PMDs to reduce session setup time. > > Ayuj Verma (1): > lib/crypto: mark asym session-buffer non-reuseable > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] mark asym session-buffer non-reuseable 2019-07-17 14:10 ` [dpdk-dev] [RFC] " Kusztal, ArkadiuszX @ 2019-07-18 9:47 ` Ayuj Verma 2019-07-19 14:50 ` Ayuj Verma 0 siblings, 1 reply; 10+ messages in thread From: Ayuj Verma @ 2019-07-18 9:47 UTC (permalink / raw) To: Kusztal, ArkadiuszX, akhil.goyal Cc: Trahe, Fiona, Shally Verma, Sunila Sahu, Kanaka Durga Kotamarthy, dev Hi Arek, Please see inline. Thanks and regards Ayuj Verma ________________________________ From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com> Sent: 17 July 2019 19:40 To: Ayuj Verma; akhil.goyal@nxp.com Cc: Trahe, Fiona; Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: RE: [RFC] mark asym session-buffer non-reuseable Hi Ayuj, > -----Original Message----- > From: Ayuj Verma [mailto:ayverma@marvell.com] > Sent: Wednesday, July 17, 2019 2:34 PM > To: akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > <ayverma@marvell.com> > Subject: [RFC] mark asym session-buffer non-reuseable > > This RFC proposes changes in asymmetric session usability of transform > structure. In current implementation asym xform is seen as temporary entity > that can be re-used by application once sessions are initialized with it. > > This enforces PMD to copy all key buffers during session setup time. Since > life-time of sessions are small, so we can hold these buffers with session, [AK] - what is you expected session lifetime? (2,3,50 packets?) [Ayuj] In practical scenario like SSL, handshake will happen in some 10-15 packets. > reducing memcpy time by marking these as read-only so that PMDs which > doesn’t require any manipulation of xform data can directly use these > buffers in session configure. > > So, sending a proposal to mark xform as non-reusable till lifetime of session. > This will help PMDs to reduce session setup time. > > Ayuj Verma (1): > lib/crypto: mark asym session-buffer non-reuseable > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] mark asym session-buffer non-reuseable 2019-07-18 9:47 ` Ayuj Verma @ 2019-07-19 14:50 ` Ayuj Verma 2019-07-19 15:38 ` Trahe, Fiona 0 siblings, 1 reply; 10+ messages in thread From: Ayuj Verma @ 2019-07-19 14:50 UTC (permalink / raw) To: Kusztal, ArkadiuszX, akhil.goyal Cc: Trahe, Fiona, Shally Verma, Sunila Sahu, Kanaka Durga Kotamarthy, dev Hi Akhil, Arek, Fiona, Since this require changes in other Asym PMD( qat) apart from openssl (we plan to send changes for this), so should we need to send any announcement on ABI breakage here before proposing patch v1? Thanks and regards Ayuj Verma ________________________________ From: Ayuj Verma Sent: 18 July 2019 15:17:54 To: Kusztal, ArkadiuszX; akhil.goyal@nxp.com Cc: Trahe, Fiona; Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: Re: [RFC] mark asym session-buffer non-reuseable Hi Arek, Please see inline. Thanks and regards Ayuj Verma ________________________________ From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com> Sent: 17 July 2019 19:40 To: Ayuj Verma; akhil.goyal@nxp.com Cc: Trahe, Fiona; Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org Subject: RE: [RFC] mark asym session-buffer non-reuseable Hi Ayuj, > -----Original Message----- > From: Ayuj Verma [mailto:ayverma@marvell.com] > Sent: Wednesday, July 17, 2019 2:34 PM > To: akhil.goyal@nxp.com > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; Trahe, Fiona > <fiona.trahe@intel.com>; shallyv@marvell.com; ssahu@marvell.com; > kkotamarthy@marvell.com; dev@dpdk.org; Ayuj Verma > <ayverma@marvell.com> > Subject: [RFC] mark asym session-buffer non-reuseable > > This RFC proposes changes in asymmetric session usability of transform > structure. In current implementation asym xform is seen as temporary entity > that can be re-used by application once sessions are initialized with it. > > This enforces PMD to copy all key buffers during session setup time. Since > life-time of sessions are small, so we can hold these buffers with session, [AK] - what is you expected session lifetime? (2,3,50 packets?) [Ayuj] In practical scenario like SSL, handshake will happen in some 10-15 packets. > reducing memcpy time by marking these as read-only so that PMDs which > doesn’t require any manipulation of xform data can directly use these > buffers in session configure. > > So, sending a proposal to mark xform as non-reusable till lifetime of session. > This will help PMDs to reduce session setup time. > > Ayuj Verma (1): > lib/crypto: mark asym session-buffer non-reuseable > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [dpdk-dev] [RFC] mark asym session-buffer non-reuseable 2019-07-19 14:50 ` Ayuj Verma @ 2019-07-19 15:38 ` Trahe, Fiona 0 siblings, 0 replies; 10+ messages in thread From: Trahe, Fiona @ 2019-07-19 15:38 UTC (permalink / raw) To: Ayuj Verma, Kusztal, ArkadiuszX, akhil.goyal Cc: Shally Verma, Sunila Sahu, Kanaka Durga Kotamarthy, dev, Trahe, Fiona No need as API is still experimental. Howver I'd suggest changing the subject to "declare crypto asym xform immutable" non-reusable is confusing as the session and xform will be re-used on all the ops associated with the session. From: Ayuj Verma [mailto:ayverma@marvell.com] Sent: Friday, July 19, 2019 3:51 PM To: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com>; akhil.goyal@nxp.com Cc: Trahe, Fiona <fiona.trahe@intel.com>; Shally Verma <shallyv@marvell.com>; Sunila Sahu <ssahu@marvell.com>; Kanaka Durga Kotamarthy <kkotamarthy@marvell.com>; dev@dpdk.org Subject: Re: [RFC] mark asym session-buffer non-reuseable Hi Akhil, Arek, Fiona, Since this require changes in other Asym PMD( qat) apart from openssl (we plan to send changes for this), so should we need to send any announcement on ABI breakage here before proposing patch v1? Thanks and regards Ayuj Verma ________________________________ From: Ayuj Verma Sent: 18 July 2019 15:17:54 To: Kusztal, ArkadiuszX; akhil.goyal@nxp.com<mailto:akhil.goyal@nxp.com> Cc: Trahe, Fiona; Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org<mailto:dev@dpdk.org> Subject: Re: [RFC] mark asym session-buffer non-reuseable Hi Arek, Please see inline. Thanks and regards Ayuj Verma ________________________________ From: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com<mailto:arkadiuszx.kusztal@intel.com>> Sent: 17 July 2019 19:40 To: Ayuj Verma; akhil.goyal@nxp.com<mailto:akhil.goyal@nxp.com> Cc: Trahe, Fiona; Shally Verma; Sunila Sahu; Kanaka Durga Kotamarthy; dev@dpdk.org<mailto:dev@dpdk.org> Subject: RE: [RFC] mark asym session-buffer non-reuseable Hi Ayuj, > -----Original Message----- > From: Ayuj Verma [mailto:ayverma@marvell.com] > Sent: Wednesday, July 17, 2019 2:34 PM > To: akhil.goyal@nxp.com<mailto:akhil.goyal@nxp.com> > Cc: Kusztal, ArkadiuszX <arkadiuszx.kusztal@intel.com<mailto:arkadiuszx.kusztal@intel.com>>; Trahe, Fiona > <fiona.trahe@intel.com<mailto:fiona.trahe@intel.com>>; shallyv@marvell.com<mailto:shallyv@marvell.com>; ssahu@marvell.com<mailto:ssahu@marvell.com>; > kkotamarthy@marvell.com<mailto:kkotamarthy@marvell.com>; dev@dpdk.org<mailto:dev@dpdk.org>; Ayuj Verma > <ayverma@marvell.com<mailto:ayverma@marvell.com>> > Subject: [RFC] mark asym session-buffer non-reuseable > > This RFC proposes changes in asymmetric session usability of transform > structure. In current implementation asym xform is seen as temporary entity > that can be re-used by application once sessions are initialized with it. > > This enforces PMD to copy all key buffers during session setup time. Since > life-time of sessions are small, so we can hold these buffers with session, [AK] - what is you expected session lifetime? (2,3,50 packets?) [Ayuj] In practical scenario like SSL, handshake will happen in some 10-15 packets. > reducing memcpy time by marking these as read-only so that PMDs which > doesn't require any manipulation of xform data can directly use these > buffers in session configure. > > So, sending a proposal to mark xform as non-reusable till lifetime of session. > This will help PMDs to reduce session setup time. > > Ayuj Verma (1): > lib/crypto: mark asym session-buffer non-reuseable > > doc/guides/prog_guide/cryptodev_lib.rst | 6 ++++++ > lib/librte_cryptodev/rte_cryptodev_pmd.h | 2 +- > 2 files changed, 7 insertions(+), 1 deletion(-) > > -- > 1.8.3.1 ^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2019-07-19 15:38 UTC | newest] Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2019-07-17 12:34 [dpdk-dev] [RFC] mark asym session-buffer non-reuseable Ayuj Verma 2019-07-17 12:34 ` [dpdk-dev] [RFC] lib/crypto: " Ayuj Verma 2019-07-17 14:03 ` Trahe, Fiona 2019-07-17 14:10 ` Kusztal, ArkadiuszX 2019-07-18 9:56 ` Ayuj Verma 2019-07-18 10:49 ` Ayuj Verma 2019-07-17 14:10 ` [dpdk-dev] [RFC] " Kusztal, ArkadiuszX 2019-07-18 9:47 ` Ayuj Verma 2019-07-19 14:50 ` Ayuj Verma 2019-07-19 15:38 ` Trahe, Fiona
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