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From: Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>
To: Jerin Jacob <jerinjacobk@gmail.com>
Cc: Juraj Linkeš <juraj.linkes@pantheon.tech>,
	"Richardson, Bruce" <bruce.richardson@intel.com>,
	Aaron Conole <aconole@redhat.com>,
	Michael Santana <maicolgabriel@hotmail.com>,
	dpdk-dev <dev@dpdk.org>, nd <nd@arm.com>,
	Phil Yang <Phil.Yang@arm.com>,
	Ruifeng Wang <Ruifeng.Wang@arm.com>,
	Jan Viktorin <viktorin@rehivetech.com>,
	Honnappa Nagarahalli <Honnappa.Nagarahalli@arm.com>,
	nd <nd@arm.com>
Subject: Re: [dpdk-dev] [PATCH v5 2/4] build: add arm32 meson build flags
Date: Wed, 8 Jul 2020 20:55:29 +0000
Message-ID: <DB6PR0802MB2216C5850A3B08D19816785198670@DB6PR0802MB2216.eurprd08.prod.outlook.com> (raw)
In-Reply-To: <CALBAE1Oj6W1f30u173T56+CRnAqdsa1wM275skupH58sq8tvrw@mail.gmail.com>

> > <snip>
> >
> > > Subject: Re: [dpdk-dev] [PATCH v5 2/4] build: add arm32 meson build
> > > flags
> > >
> > > On Mon, Jul 6, 2020 at 1:59 PM Juraj Linkeš
> > > <juraj.linkes@pantheon.tech>
> > > wrote:
> > > >
> > > > Base the flags on config/defconfig_arm-armv7a-linuxapp-gcc.
> > > > Omit driver flags which can be built on arm32.
> > > >
> > > > Signed-off-by: Juraj Linkeš <juraj.linkes@pantheon.tech>
> > >
> > > Hi Juraj,
> > >
> > > Not strictly specific to this patch. Just to understand, How armv7
> > > support has been used?
> > I do not know how armv7 support is being used. I have not heard of
> anything so far.
> >
> > In this patch arm32 is actually referring to aarch32.
> >
> > > - Is it for Running arm32 program on arm64 machines?
> > I am not sure if anyone would run armv7 binaries on arm64 machines. I
> would think they will at least go through a re-compilation (to aarch32) and
> test phase.
> >
> > > - Is it for Native DPDK support from arm32. If so, What kind of PMD
> > > supports native arm32 DPDK?
> > Yes, this is for DPDK on aarch32 support. We do not have any plans to
> enable any PMD for aarch32. The current goal is to make sure that the code
> compiles for aarch32. Internally, we have validated few test cases for the
> libraries.
> 
> One thing is lack of PMD support and other is lack  PCI HW support for
> armv7 machines in general.
> 
> 
> >
> > >
> > > Or some other use case?
> > >
> > > I would like to understand the arm32 use case, so we can review it
> > > at that angle.
> >
> > I believe armv7a compilation is not supported in meson. Do you have any
> thoughts? Do you plan to maintain the support for armv7a?
> 
> Armv7 is maintained by:
> ARM v7
> M: Jan Viktorin <viktorin@rehivetech.com>
> M: Ruifeng Wang <ruifeng.wang@arm.com>
> F: lib/librte_eal/arm/
> 
> My only concern is if there is no REAL use case for armv7 in DPDK, May it is
> not worth to add a lot of code and make it complicated for arm64.
> At a minimum, If we are planning to add armv7 support then please split
> config/arm/meson.build file as two for arm64 and armv7.
If no one objects, may be we should skip armv7.
But, we need to do aarch32 for compilation/unit tests for libraries as platforms (N1 based) exist with aarch32+PCI. We can skip the PMD support right now. Is that ok?

  reply	other threads:[~2020-07-08 20:55 UTC|newest]

Thread overview: 158+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-15  9:03 [dpdk-dev] [PATCH v3 0/4] aarch64 -> arm32 cross compilation support Juraj Linkeš
2020-04-15  9:03 ` [dpdk-dev] [PATCH v3 1/4] build: port arm32 options from make to meson Juraj Linkeš
2020-04-15 11:45   ` Luca Boccassi
2020-04-16  6:16     ` Juraj Linkeš
2020-04-16  8:53       ` Luca Boccassi
2020-04-16 11:25         ` Juraj Linkeš
2020-04-16 12:00           ` Luca Boccassi
2020-04-16 12:22             ` Juraj Linkeš
2020-04-16 15:11               ` Ruifeng Wang
2020-04-15  9:03 ` [dpdk-dev] [PATCH v3 2/4] build: add arm32 meson build flags Juraj Linkeš
2020-04-15  9:03 ` [dpdk-dev] [PATCH v3 3/4] build: add arm32 meson cross file Juraj Linkeš
2020-04-15  9:03 ` [dpdk-dev] [PATCH v3 4/4] ci: add aarch64 -> arm32 cross compiling jobs Juraj Linkeš
2020-04-29 10:24 ` [dpdk-dev] [PATCH v4 0/4] aarch64 -> arm32 cross compilation support Juraj Linkeš
2020-04-29 10:24   ` [dpdk-dev] [PATCH v4 1/4] build: disable vhost NUMA for arm32 Juraj Linkeš
2020-04-29 10:24   ` [dpdk-dev] [PATCH v4 2/4] build: add arm32 meson build flags Juraj Linkeš
2020-04-29 10:24   ` [dpdk-dev] [PATCH v4 3/4] build: add arm32 meson cross file Juraj Linkeš
2020-04-29 10:24   ` [dpdk-dev] [PATCH v4 4/4] ci: add aarch64 -> arm32 cross compiling jobs Juraj Linkeš
2020-05-05 18:56     ` Aaron Conole
2020-05-11  7:05       ` Juraj Linkeš
2020-07-06  8:28   ` [dpdk-dev] [PATCH v5 0/4] aarch64 -> arm32 cross compilation support Juraj Linkeš
2020-07-06  8:28     ` [dpdk-dev] [PATCH v5 1/4] build: disable vhost NUMA for arm32 Juraj Linkeš
2020-07-06  8:56       ` David Marchand
2020-07-06  8:28     ` [dpdk-dev] [PATCH v5 2/4] build: add arm32 meson build flags Juraj Linkeš
2020-07-06  9:11       ` Jerin Jacob
2020-07-07 20:44         ` Honnappa Nagarahalli
2020-07-08  8:33           ` Jerin Jacob
2020-07-08 20:55             ` Honnappa Nagarahalli [this message]
2020-07-09  4:49               ` Jerin Jacob
2020-07-06  8:28     ` [dpdk-dev] [PATCH v5 3/4] build: add arm32 meson cross file Juraj Linkeš
2020-07-06  8:28     ` [dpdk-dev] [PATCH v5 4/4] ci: add aarch64 -> arm32 cross compiling jobs Juraj Linkeš
2020-07-06  9:11       ` Juraj Linkeš
2020-08-13  9:21     ` [dpdk-dev] [PATCH v6 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-08-13  9:21       ` [dpdk-dev] [PATCH v6 1/5] net/bnxt: add support for aarch32 Juraj Linkeš
2020-08-13  9:21       ` [dpdk-dev] [PATCH v6 2/5] build: add aarch32 meson build flags Juraj Linkeš
2020-08-13  9:21       ` [dpdk-dev] [PATCH v6 3/5] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-08-13  9:21       ` [dpdk-dev] [PATCH v6 4/5] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-08-14  2:10         ` Ruifeng Wang
2020-08-13  9:21       ` [dpdk-dev] [PATCH v6 5/5] doc: add aarch32 build guidance Juraj Linkeš
2020-08-14 10:31       ` [dpdk-dev] [PATCH v7 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-08-14 10:31         ` [dpdk-dev] [PATCH v7 1/5] net/bnxt: add support for aarch32 Juraj Linkeš
2020-08-19 17:45           ` Ajit Khaparde
2020-08-20  3:00             ` Ruifeng Wang
2020-08-20  9:13               ` Juraj Linkeš
2020-08-14 10:31         ` [dpdk-dev] [PATCH v7 2/5] build: add aarch32 meson build flags Juraj Linkeš
2020-08-14 10:31         ` [dpdk-dev] [PATCH v7 3/5] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-08-14 10:31         ` [dpdk-dev] [PATCH v7 4/5] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-08-14 10:31         ` [dpdk-dev] [PATCH v7 5/5] doc: add aarch32 build guidance Juraj Linkeš
2020-08-25 13:04         ` [dpdk-dev] [PATCH v8 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-08-25 13:04           ` [dpdk-dev] [PATCH v8 1/5] net/bnxt: add support for aarch32 Juraj Linkeš
2020-08-25 19:05             ` Ajit Khaparde
2020-08-25 13:04           ` [dpdk-dev] [PATCH v8 2/5] build: add aarch32 meson build flags Juraj Linkeš
2020-08-25 13:04           ` [dpdk-dev] [PATCH v8 3/5] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-08-25 13:04           ` [dpdk-dev] [PATCH v8 4/5] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-08-25 14:16             ` Aaron Conole
2020-08-26  6:21               ` Juraj Linkeš
2020-08-25 13:04           ` [dpdk-dev] [PATCH v8 5/5] doc: add aarch32 build guidance Juraj Linkeš
2020-08-25 14:03             ` Aaron Conole
2020-08-26  3:12               ` Phil Yang
2020-08-28 11:38           ` [dpdk-dev] [PATCH v9 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-08-28 11:38             ` [dpdk-dev] [PATCH v9 1/5] net/bnxt: add support for aarch32 Juraj Linkeš
2020-08-28 11:38             ` [dpdk-dev] [PATCH v9 2/5] build: add aarch32 meson build flags Juraj Linkeš
2020-08-28 11:38             ` [dpdk-dev] [PATCH v9 3/5] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-08-28 11:38             ` [dpdk-dev] [PATCH v9 4/5] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-08-28 11:38             ` [dpdk-dev] [PATCH v9 5/5] doc: add aarch32 build guidance Juraj Linkeš
2020-09-11 13:20               ` Aaron Conole
2020-09-16  8:04                 ` Juraj Linkeš
2020-09-16  8:21             ` [dpdk-dev] [PATCH v10 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-09-16  8:21               ` [dpdk-dev] [PATCH v10 1/5] net/bnxt: add support for aarch32 Juraj Linkeš
2020-11-04 18:30                 ` Lance Richardson
2020-11-05  7:20                   ` Ruifeng Wang
2020-11-05 13:41                     ` Lance Richardson
2020-11-05 15:13                       ` Ruifeng Wang
2020-09-16  8:21               ` [dpdk-dev] [PATCH v10 2/5] build: add aarch32 meson build flags Juraj Linkeš
2020-10-21 14:24                 ` Ruifeng Wang
2020-09-16  8:21               ` [dpdk-dev] [PATCH v10 3/5] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-10-21 14:27                 ` Ruifeng Wang
2020-09-16  8:21               ` [dpdk-dev] [PATCH v10 4/5] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-10-21 14:29                 ` Ruifeng Wang
2020-09-16  8:21               ` [dpdk-dev] [PATCH v10 5/5] doc: add aarch32 build guidance Juraj Linkeš
2020-10-21 14:32                 ` Ruifeng Wang
2020-10-21 11:42               ` [dpdk-dev] [PATCH v10 0/5] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-10-21 11:52                 ` Thomas Monjalon
2020-10-28  9:22               ` Jerin Jacob
2020-11-30 14:03               ` Aaron Conole
2020-12-09 12:59               ` [dpdk-dev] [PATCH v11 0/7] " Juraj Linkeš
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 1/7] net/sfc: fix aarch32 build Juraj Linkeš
2020-12-09 13:37                   ` [dpdk-dev] ***Spam*** " Andrew Rybchenko
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 2/7] net/bnxt: " Juraj Linkeš
2020-12-09 14:10                   ` Lance Richardson
2020-12-09 14:16                     ` Ruifeng Wang
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 3/7] net/bnxt: add support for aarch32 Juraj Linkeš
2020-12-09 13:59                   ` Lance Richardson
2020-12-09 14:11                     ` Ruifeng Wang
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 4/7] build: add aarch32 meson build flags Juraj Linkeš
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 5/7] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 6/7] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-12-09 15:29                   ` Aaron Conole
2020-12-09 12:59                 ` [dpdk-dev] [PATCH v11 7/7] doc: add aarch32 build guidance Juraj Linkeš
2020-12-11  8:26                 ` [dpdk-dev] [PATCH v12 0/6] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 1/6] net/sfc: fix aarch32 build Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 2/6] net/bnxt: " Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 3/6] build: add aarch32 meson build flags Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 4/6] build: add aarch32 to meson cross-compilation Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 5/6] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2020-12-11  8:26                   ` [dpdk-dev] [PATCH v12 6/6] doc: add aarch32 build guidance Juraj Linkeš
2021-03-09  8:36                   ` [dpdk-dev] [PATCH v13 0/7] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 1/7] net/sfc: fix aarch32 build Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 2/7] net/bnxt: " Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 3/7] net/virtio: " Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 4/7] build: add aarch32 meson build flags Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 5/7] build: add aarch32 to meson cross-compilation Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 6/7] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2021-03-09  8:36                     ` [dpdk-dev] [PATCH v13 7/7] doc: add aarch32 build guidance Juraj Linkeš
2021-03-09 13:46                       ` Aaron Conole
2021-03-17 13:35                     ` [dpdk-dev] [PATCH v14 0/7] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2021-03-17 13:35                       ` [dpdk-dev] [PATCH v14 1/7] net/sfc: fix aarch32 build Juraj Linkeš
2021-03-17 13:35                       ` [dpdk-dev] [PATCH v14 2/7] net/bnxt: " Juraj Linkeš
2021-03-17 13:35                       ` [dpdk-dev] [PATCH v14 3/7] net/virtio: " Juraj Linkeš
2021-03-17 13:36                       ` [dpdk-dev] [PATCH v14 4/7] build: add aarch32 meson build flags Juraj Linkeš
2021-03-17 13:36                       ` [dpdk-dev] [PATCH v14 5/7] build: add aarch32 to meson cross-compilation Juraj Linkeš
2021-03-17 13:36                       ` [dpdk-dev] [PATCH v14 6/7] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2021-03-17 13:36                       ` [dpdk-dev] [PATCH v14 7/7] doc: add aarch32 build guidance Juraj Linkeš
2021-04-21  8:50                       ` [dpdk-dev] [PATCH v16 0/8] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 1/8] net/sfc: fix aarch32 build Juraj Linkeš
2021-04-21  9:04                           ` Andrew Rybchenko
2021-04-21 10:06                             ` Ruifeng Wang
2021-04-21 14:08                               ` Juraj Linkeš
2021-04-21 14:20                                 ` Andrew Rybchenko
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 2/8] net/bnxt: " Juraj Linkeš
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 3/8] net/virtio: " Juraj Linkeš
2021-04-21  9:16                           ` Maxime Coquelin
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 4/8] eal/arm: update CPU flags Juraj Linkeš
2021-04-21 14:28                           ` Juraj Linkeš
2021-04-22  5:32                             ` Ruifeng Wang
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 5/8] build: add aarch32 meson build flags Juraj Linkeš
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 6/8] build: add aarch32 to meson cross-compilation Juraj Linkeš
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 7/8] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2021-04-21  8:50                         ` [dpdk-dev] [PATCH v16 8/8] doc: add aarch32 build guidance Juraj Linkeš
2021-04-22 12:49                         ` [dpdk-dev] [PATCH v17 0/8] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 1/8] net/sfc: fix aarch32 build Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 2/8] net/bnxt: " Juraj Linkeš
2021-04-22 18:50                             ` Ajit Khaparde
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 3/8] net/virtio: " Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 4/8] eal/arm: update CPU flags Juraj Linkeš
2021-04-25  7:03                             ` Ruifeng Wang
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 5/8] build: add aarch32 meson build flags Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 6/8] build: add aarch32 to meson cross-compilation Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 7/8] ci: add aarch64 -> aarch32 cross compiling jobs Juraj Linkeš
2021-04-22 12:49                           ` [dpdk-dev] [PATCH v17 8/8] doc: add aarch32 build guidance Juraj Linkeš
2021-07-07 13:25                           ` [dpdk-dev] [PATCH v18 0/7] aarch64 -> aarch32 cross compilation support Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 1/7] net/sfc: fix aarch32 build Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 2/7] net/bnxt: " Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 3/7] net/virtio: " Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 4/7] eal/arm: update CPU flags Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 5/7] build: add aarch32 meson build flags Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 6/7] build: add aarch32 to meson cross-compilation Juraj Linkeš
2021-07-07 13:25                             ` [dpdk-dev] [PATCH v18 7/7] doc: add aarch32 build guidance Juraj Linkeš
2021-07-09 18:19                             ` [dpdk-dev] [PATCH v18 0/7] aarch64 -> aarch32 cross compilation support Thomas Monjalon

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