From: Anoob Joseph <anoob.joseph@caviumnetworks.com>
To: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>,
"Doherty, Declan" <declan.doherty@intel.com>
Cc: Akhil Goyal <akhil.goyal@nxp.com>,
Ankur Dwivedi <ankur.dwivedi@caviumnetworks.com>,
Jerin Jacob <jerin.jacob@caviumnetworks.com>,
Narayana Prasad <narayanaprasad.athreya@caviumnetworks.com>,
"dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH v1 1/3] cryptodev: add min headroom and tailroom requirement
Date: Tue, 10 Jul 2018 16:20:43 +0530 [thread overview]
Message-ID: <fa34e547-ca6f-0beb-2d87-90b0df6f38cf@caviumnetworks.com> (raw)
In-Reply-To: <E115CCD9D858EF4F90C690B0DCB4D8977F8F425F@IRSMSX107.ger.corp.intel.com>
Hi Pablo,
I'll look into this and will give you an updated patch.
Thanks,
Anoob
On 10-07-2018 15:56, De Lara Guarch, Pablo wrote:
> External Email
>
> Hi Anoob,
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Anoob Joseph
>> Sent: Wednesday, July 4, 2018 2:56 PM
>> To: Doherty, Declan <declan.doherty@intel.com>; De Lara Guarch, Pablo
>> <pablo.de.lara.guarch@intel.com>
>> Cc: Anoob Joseph <anoob.joseph@caviumnetworks.com>; Akhil Goyal
>> <akhil.goyal@nxp.com>; Ankur Dwivedi
>> <ankur.dwivedi@caviumnetworks.com>; Jerin Jacob
>> <jerin.jacob@caviumnetworks.com>; Narayana Prasad
>> <narayanaprasad.athreya@caviumnetworks.com>; dev@dpdk.org
>> Subject: [dpdk-dev] [PATCH v1 1/3] cryptodev: add min headroom and tailroom
>> requirement
>>
>> Enabling crypto devs to specify the minimum headroom and tailroom it expects
>> in the mbuf. For net PMDs, standard headroom has to be honoured by
>> applications, which is not strictly followed for crypto devs. This prevents crypto
>> devs from using free space in mbuf (available as
>> head/tailroom) for internal requirements in crypto operations. Addition of
>> head/tailroom requirement will help PMDs to communicate such requirements
>> to the application.
>>
>> The availability and use of head/tailroom is an optimization if the hardware
>> supports use of head/tailroom for crypto-op info. For devices that do not
>> support using the head/tailroom, they can continue to operate without any
>> performance-drop.
>>
>> Signed-off-by: Anoob Joseph <anoob.joseph@caviumnetworks.com>
>> ---
>> v1:
>> * Removed deprecation notice
>> * Updated release note
>> * Renamed new fields to have 'mbuf' in the name
>> * Changed the type of new fields to uint16_t (instead of uint32_t)
>>
>> doc/guides/rel_notes/release_18_08.rst | 6 ++++++
>> lib/librte_cryptodev/rte_cryptodev.h | 6 ++++++
>> 2 files changed, 12 insertions(+)
>>
>> diff --git a/doc/guides/rel_notes/release_18_08.rst
>> b/doc/guides/rel_notes/release_18_08.rst
>> index 5bc23c5..fae0d26 100644
>> --- a/doc/guides/rel_notes/release_18_08.rst
>> +++ b/doc/guides/rel_notes/release_18_08.rst
>> @@ -70,6 +70,12 @@ ABI Changes
>> Also, make sure to start the actual text at the margin.
>> =========================================================
>>
>> +* cryptodev: Additional fields in rte_cryptodev_info.
>> +
>> + Two new fields of type ``uint16_t`` added in ``rte_cryptodev_info``
>> + structure: ``min_mbuf_headroom_req`` and ``min_mbuf_tailroom_req``.
>> + These parameters specify the recommended headroom and tailroom for
>> + mbufs to be processed by the PMD.
> I think the "cryptodev scheduler PMD" needs changes to take these new parameters into consideration.
> Scheduler_pmd_info_get should return the maximum number of these two fields on all the slaves
> (like what's done with max number of sessions).
>
> We need to close the subtree today, with all API changes done. Will you have time to make this change today?
>
> Thanks!
> Pablo
>
next prev parent reply other threads:[~2018-07-10 10:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-19 6:26 [dpdk-dev] [PATCH 0/2] add head/tailroom requirement for crypto PMDs Anoob Joseph
2018-06-19 6:26 ` [dpdk-dev] [PATCH 1/2] cryptodev: add min headroom and tailroom requirement Anoob Joseph
2018-06-21 14:24 ` Akhil Goyal
2018-06-22 6:52 ` Joseph, Anoob
2018-06-22 10:03 ` Akhil Goyal
2018-06-26 10:12 ` Doherty, Declan
2018-06-28 2:56 ` Joseph, Anoob
2018-06-28 11:41 ` De Lara Guarch, Pablo
2018-06-28 11:59 ` Joseph, Anoob
2018-06-19 6:26 ` [dpdk-dev] [PATCH 2/2] app/crypto-perf: honour cryptodev's min headroom/tailroom Anoob Joseph
2018-06-28 11:42 ` De Lara Guarch, Pablo
2018-07-04 13:55 ` [dpdk-dev] [PATCH v1 0/3] add head/tailroom requirement for crypto PMDs Anoob Joseph
2018-07-04 13:55 ` [dpdk-dev] [PATCH v1 1/3] cryptodev: add min headroom and tailroom requirement Anoob Joseph
2018-07-10 10:26 ` De Lara Guarch, Pablo
2018-07-10 10:50 ` Anoob Joseph [this message]
2018-07-04 13:55 ` [dpdk-dev] [PATCH v1 2/3] app/crypto-perf: honour cryptodev's min headroom/tailroom Anoob Joseph
2018-07-10 11:07 ` De Lara Guarch, Pablo
2018-07-10 11:16 ` De Lara Guarch, Pablo
2018-07-10 11:48 ` De Lara Guarch, Pablo
2018-07-10 12:23 ` Anoob Joseph
2018-07-10 13:27 ` De Lara Guarch, Pablo
2018-07-10 14:08 ` Anoob Joseph
2018-07-04 13:55 ` [dpdk-dev] [PATCH v1 3/3] test/crypto: skip validation of head/tailroom used by PMD Anoob Joseph
2018-07-10 14:42 ` [dpdk-dev] [PATCH v2 0/4] add head/tailroom requirement for crypto PMDs Anoob Joseph
2018-07-10 14:42 ` [dpdk-dev] [PATCH v2 1/4] cryptodev: add min headroom and tailroom requirement Anoob Joseph
2018-07-10 14:42 ` [dpdk-dev] [PATCH v2 2/4] app/crypto-perf: honour cryptodev's min headroom/tailroom Anoob Joseph
2018-07-10 14:42 ` [dpdk-dev] [PATCH v2 3/4] test/crypto: skip validation of head/tailroom used by PMD Anoob Joseph
2018-07-10 14:42 ` [dpdk-dev] [PATCH v2 4/4] crypto/scheduler: add minimum head/tailroom requirement Anoob Joseph
2018-07-10 17:20 ` [dpdk-dev] [PATCH v2 0/4] add head/tailroom requirement for crypto PMDs De Lara Guarch, Pablo
2018-07-10 17:29 ` De Lara Guarch, Pablo
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