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From: Thomas Monjalon <thomas@monjalon.net>
To: "yskoh@mellanox.com" <yskoh@mellanox.com>
Cc: dev@dpdk.org, Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	"jerinj@marvell.com" <jerinj@marvell.com>,
	"bruce.richardson@intel.com" <bruce.richardson@intel.com>,
	"pbhagavatula@marvell.com" <pbhagavatula@marvell.com>,
	"shahafs@mellanox.com" <shahafs@mellanox.com>,
	"Gavin Hu (Arm Technology China)" <Gavin.Hu@arm.com>,
	"stable@dpdk.org" <stable@dpdk.org>,
	Dharmik Thakkar <Dharmik.Thakkar@arm.com>, nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v3] build: disable armv8 crypto extension
Date: Tue, 04 Jun 2019 01:11:26 +0200	[thread overview]
Message-ID: <14058418.BnuyAWlf4k@xps> (raw)
In-Reply-To: <VE1PR08MB5149BA92DD6CCA07CA8842CD980F0@VE1PR08MB5149.eurprd08.prod.outlook.com>

13/05/2019 21:26, Honnappa Nagarahalli:
> > 
> > Per armv8 crypto extension support, make build always enable it by default as
> > long as compiler supports the feature while meson build only enables it for
> > 'default' machine of generic armv8 architecture.
> > 
> > It is known that not all the armv8 platforms have the crypto extension. For
> > example, Mellanox BlueField has a variant which doesn't have it. If crypto
> > enabled binary runs on such a platform, rte_eal_init() fails.
> > 
> > '+crypto' flag currently implies only '+aes' and '+sha2' and enabling it will
> > generate the crypto instructions only when crypto intrinsics are used.
> > For the devices supporting 8.2 crypto or newer, compiler could generate such
> > instructions beyond intrinsics or asm code. For example, compiler can generate
> > 3-way exclusive OR instructions if sha3 is supported. However, it has to be
> > enabled by adding '+sha3' as of today.
> > 
> > In DPDK, armv8 cryptodev is the only one which requires the crypto support.
> > As it even uses external library of Marvell which is compiled out of DPDK with
> > crypto support and there's run-time check for required cpuflags, crypto
> > support can be disabled in DPDK.
> > 
> > Cc: stable@dpdk.org
> > 
> > Signed-off-by: Yongseok Koh <yskoh@mellanox.com>
> > Acked-by: Jerin Jacob <jerinj@marvell.com>
> > Tested-by: Dharmik Thakkar <dharmik.thakkar@arm.com>
> 
> Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>

Applied, thanks



      parent reply	other threads:[~2019-06-03 23:11 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
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 [this message]

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