From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: "jerinj@marvell.com" <jerinj@marvell.com>,
"yskoh@mellanox.com" <yskoh@mellanox.com>
Cc: "thomas@monjalon.net" <thomas@monjalon.net>,
"dev@dpdk.org" <dev@dpdk.org>,
"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>,
Shahaf Shuler <shahafs@mellanox.com>,
"Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
"stable@dpdk.org" <stable@dpdk.org>,
Luca Boccassi <bluca@debian.org>, nd <nd@arm.com>,
nd <nd@arm.com>
Subject: Re: [dpdk-dev] [dpdk-stable] [PATCH v2] build: disable armv8 crypto extension
Date: Tue, 7 May 2019 11:03:37 +0000 [thread overview]
Message-ID: <VE1PR08MB5149588FD564F972C35D511E98310@VE1PR08MB5149.eurprd08.prod.outlook.com> (raw)
Message-ID: <20190507110337.vHzG3WNSHlcdnw7iQkgijiCyKvZdBh7RU1eiu7KYc5Q@z> (raw)
In-Reply-To: <BYAPR18MB2424305090CD8C3E65F85212C8310@BYAPR18MB2424.namprd18.prod.outlook.com>
> > Subject: [EXT] Re: [dpdk-stable] [PATCH v2] build: disable armv8
> > crypto extension
> >
> > > On May 3, 2019, at 10:50 AM, Yongseok Koh <yskoh@mellanox.com>
> > wrote:
> > >
> > >> I think this change might have an impact on the existing users.
> > >> Does this change need to be documented somewhere (at least in the
> > >> release
> > notes)?
> > >
> > > Practically, there would be no impact. Even if user's app makes use
> > > of crypto instructions, the build config of the app should have the flag.
> >
> > On IRC, I could see you concerned about the case where user app
> > derives build flags from DPDK like apps under the examples directory.
> > Yes, that's a valid concern.
>
> Is there any DPDK example application would depend on the armv8 crypto
> flags? IMO, None of the applications are directly using armv8 crypto
It is not about DPDK's example application. We have control over that.
> instruction. Even such as comes for any external DPDK app which is not in
> dpdk.org tree then it can be added in APP makefile.
> IMO, app writes should be aware of the need for using +crypto if he/she
> using the crypto instruction.
Agree. But, it might be that the app writer might have depended on the +crypto coming from DPDK build system, in which case, she/he needs to know the change through release notes?
I do not think it needs to be documented anywhere else.
>
> >
> > Thomas/Jerin, where could be the best spot to document it? Just
> > release note?
> > I think release note would be fine.
>
next prev parent reply other threads:[~2019-05-07 11:03 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-02 1:58 [dpdk-dev] [PATCH 1/2] build: add option for " Yongseok Koh
2019-05-02 1:58 ` Yongseok Koh
2019-05-02 1:58 ` [dpdk-dev] [PATCH 2/2] mk: disable armv8 crypto extension for Mellanox BlueField Yongseok Koh
2019-05-02 1:58 ` Yongseok Koh
2019-05-02 4:12 ` Honnappa Nagarahalli
2019-05-02 4:12 ` Honnappa Nagarahalli
2019-05-02 5:40 ` Yongseok Koh
2019-05-02 5:40 ` Yongseok Koh
2019-05-03 4:01 ` Honnappa Nagarahalli
2019-05-03 4:01 ` Honnappa Nagarahalli
2019-05-02 4:13 ` [dpdk-dev] [PATCH 1/2] build: add option for armv8 crypto extension Honnappa Nagarahalli
2019-05-02 4:13 ` Honnappa Nagarahalli
2019-05-02 5:46 ` Yongseok Koh
2019-05-02 5:46 ` Yongseok Koh
2019-05-02 10:00 ` Jerin Jacob Kollanukkaran
2019-05-02 10:00 ` Jerin Jacob Kollanukkaran
2019-05-03 3:57 ` Honnappa Nagarahalli
2019-05-03 3:57 ` Honnappa Nagarahalli
2019-05-03 9:57 ` Yongseok Koh
2019-05-03 9:57 ` Yongseok Koh
2019-05-03 12:28 ` [dpdk-dev] [PATCH v2] build: disable " Yongseok Koh
2019-05-03 12:28 ` Yongseok Koh
2019-05-03 15:02 ` Honnappa Nagarahalli
2019-05-03 15:02 ` Honnappa Nagarahalli
2019-05-03 16:10 ` Honnappa Nagarahalli
2019-05-03 16:10 ` Honnappa Nagarahalli
2019-05-03 17:50 ` Yongseok Koh
2019-05-03 17:50 ` Yongseok Koh
2019-05-06 21:46 ` [dpdk-dev] [dpdk-stable] " Yongseok Koh
2019-05-06 21:46 ` Yongseok Koh
2019-05-07 7:59 ` Jerin Jacob Kollanukkaran
2019-05-07 7:59 ` Jerin Jacob Kollanukkaran
2019-05-07 11:03 ` Honnappa Nagarahalli [this message]
2019-05-07 11:03 ` Honnappa Nagarahalli
2019-05-07 12:02 ` Jerin Jacob Kollanukkaran
2019-05-07 12:02 ` Jerin Jacob Kollanukkaran
2019-05-03 22:13 ` [dpdk-dev] " Dharmik Thakkar
2019-05-03 22:13 ` Dharmik Thakkar
2019-05-06 21:41 ` Yongseok Koh
2019-05-06 21:41 ` Yongseok Koh
2019-05-07 21:11 ` [dpdk-dev] [PATCH v3] " Yongseok Koh
2019-05-07 21:11 ` Yongseok Koh
2019-05-13 19:26 ` Honnappa Nagarahalli
2019-05-13 19:26 ` Honnappa Nagarahalli
2019-06-03 23:11 ` Thomas Monjalon
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