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Wed, 10 Mar 2021 23:42:04 +0000 From: Jinkun Geng To: Thomas Monjalon CC: Stephen Hemminger , "ci@dpdk.org" , "users@dpdk.org" Thread-Topic: [dpdk-ci] [dpdk-users] Integration of DPDK into Bazel Thread-Index: AQHXFIKDJvRyIqmyuUOkYOh6cX2eHqp674uAgAAbsW2AAtgigIAAAFbi Date: Wed, 10 Mar 2021 23:42:04 +0000 Message-ID: References: <20210308183117.627af0e8@hermes.local> , <11457967.n7LkdMVPTe@thomas> In-Reply-To: <11457967.n7LkdMVPTe@thomas> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: monjalon.net; dkim=none (message not signed) header.d=none;monjalon.net; dmarc=none action=none header.from=stanford.edu; x-originating-ip: [128.12.122.129] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: a9535e69-8eeb-4960-c79e-08d8e41e1c2d x-ms-traffictypediagnostic: BY5PR02MB6577: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:10000; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 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 x-forefront-antispam-report: CIP:255.255.255.255; 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boundary="_000_BYAPR02MB461326727BDE2463F73C4609D4919BYAPR02MB4613namp_" MIME-Version: 1.0 X-OriginatorOrg: stanford.edu X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR02MB4613.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: a9535e69-8eeb-4960-c79e-08d8e41e1c2d X-MS-Exchange-CrossTenant-originalarrivaltime: 10 Mar 2021 23:42:04.4869 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 396573cb-f378-4b68-9bc8-15755c0c51f3 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: W6my8cQjiJns6nTfAQ729zdTeborxUwWvPIZc70wr2d6oMwbbyo4Lx/XN3/Z/dPkmSafVRHf3nhPyyFWonEa3A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR02MB6577 x-proofpoint-stanford-dir: outbound X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-03-10_13:2021-03-10, 2021-03-10 signatures=0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.369, 18.0.761 definitions=2021-03-10_13:2021-03-10, 2021-03-10 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 lowpriorityscore=0 priorityscore=1501 adultscore=100 phishscore=0 bulkscore=0 mlxlogscore=999 mlxscore=0 spamscore=0 clxscore=1011 impostorscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2103100114 Subject: Re: [dpdk-ci] [dpdk-users] Integration of DPDK into Bazel X-BeenThere: ci@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK CI discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ci-bounces@dpdk.org Sender: "ci" --_000_BYAPR02MB461326727BDE2463F73C4609D4919BYAPR02MB4613namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable For any project using bazel, if we want to use DPDK, then we need to compil= e DPDK stuff into bazel by ourselves. It is not a trivial thing and the baz= elment (https://github.com/bazelment/dpdk) guys have spent much effort extr= acting the core files in DPDK and write the BUILD files for DPDK. But now i= t seems they have stopped maintaining that repo since DPDK 16.04. Even in t= hat version, it has some runtime failure when we use DPDK in our bazel proj= ect. ________________________________ From: Thomas Monjalon Sent: Wednesday, March 10, 2021 3:36 PM To: Jinkun Geng Cc: Stephen Hemminger ; ci@dpdk.org ; users@dpdk.org Subject: Re: [dpdk-ci] [dpdk-users] Integration of DPDK into Bazel 09/03/2021 05:11, Jinkun Geng: > Too bad. :< Why is it too bad? How the choice of an internal build system can affect other projects? From: Stephen Hemminger > On Tue, 9 Mar 2021 01:32:16 +0000 > Jinkun Geng wrote: > > > Hi, all. > > Since bazel building system is becoming more and more popular, sometime= s we need to integrate DPDK library into a bazel project. However, it seems= there is no much support for bazel from DPDK community. Why the DPDK community would support building with Bazel? What is the benefit? Bazel projects cannot just link with DPDK using pkg-config? > > The only support at https://github.com/bazelment/dpdk has been outdated= . Based on our experience, it can only compile successfully with dpdk-16.04= (i.e. the bazel-16.04 branch). Now DPDK has developed to DPDK 21.02, but t= he bazel support fails to catch up. > > > > It would be great if the experts in DPDK community can provide some por= table BUILD files to facilitate the integration of the newest DPDK into baz= el project (just like bazelment). After all, writing the bazel files can be= really challenging, especially if we do not have a very deep understanding= of the whole DPDK codes. > > > > Jinkun > > DPDK is on meson now. The core team is unlikely to change build systems a= gain. DPDK supports library standards for compiling, installing and linking. What else is needed? --_000_BYAPR02MB461326727BDE2463F73C4609D4919BYAPR02MB4613namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
For any project using bazel, if we want to use DPDK, then we need to compil= e DPDK stuff into bazel by ourselves. It is not a trivial thing and the baz= elment (https://github.com/bazelment/dpdk) guys have spent much effort extracting the core files in DPDK and write th= e BUILD files for DPDK. But now it seems they have stopped maintaining that= repo since DPDK 16.04. Even in that version, it has some runtime failure w= hen we use DPDK in our bazel project.


From: Thomas Monjalon <t= homas@monjalon.net>
Sent: Wednesday, March 10, 2021 3:36 PM
To: Jinkun Geng <gjk1994@stanford.edu>
Cc: Stephen Hemminger <stephen@networkplumber.org>; ci@dpdk.or= g <ci@dpdk.org>; users@dpdk.org <users@dpdk.org>
Subject: Re: [dpdk-ci] [dpdk-users] Integration of DPDK into Bazel
 
09/03/2021 05:11, Jinkun Geng:
> Too bad. :<

Why is it too bad?
How the choice of an internal build system
can affect other projects?


From: Stephen Hemminger <stephen@networkplumber.org>
> On Tue, 9 Mar 2021 01:32:16 +0000
> Jinkun Geng <gjk1994@stanford.edu> wrote:
>
> > Hi, all.
> > Since bazel building system is becoming more and more popular, so= metimes we need to integrate DPDK library into a bazel project. However, it= seems there is no much support for bazel from DPDK community.

Why the DPDK community would support building with Bazel?
What is the benefit?
Bazel projects cannot just link with DPDK using pkg-config?


> > The only support at https://github.com/bazelment/dpdk has been outdated. Based on our expe= rience, it can only compile successfully with dpdk-16.04 (i.e. the bazel-16= .04 branch). Now DPDK has developed to DPDK 21.02, but the bazel support fails to catch up.
> >
> > It would be great if the experts in DPDK community can provide so= me portable BUILD files to facilitate the integration of the newest DPDK in= to bazel project (just like bazelment). After all, writing the bazel files = can be really challenging, especially if we do not have a very deep understanding of the whole DPDK codes.
> >
> > Jinkun
>
> DPDK is on meson now. The core team is unlikely to change build system= s again.

DPDK supports library standards for compiling, installing and linking.
What else is needed?


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