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Tue, 9 Feb 2021 20:10:08 +0000 From: "Pai G, Sunil" <sunil.pai.g@intel.com> To: "Richardson, Bruce" <bruce.richardson@intel.com>, "dev@dpdk.org" <dev@dpdk.org> CC: "tredaelli@redhat.com" <tredaelli@redhat.com>, "stable@dpdk.org" <stable@dpdk.org>, Maxime Coquelin <maxime.coquelin@redhat.com>, "David Marchand" <david.marchand@redhat.com>, "bluca@debian.org" <bluca@debian.org> Thread-Topic: [dpdk-dev] [PATCH] eal: fix detection of static or shared DPDK builds Thread-Index: AQHW/jg83i6jvOqkMkCg3LvSPWy8w6pPx6yAgAB396A= Date: Tue, 9 Feb 2021 20:10:07 +0000 Message-ID: <BYAPR11MB381429D8E70FB7644962374FBD8E9@BYAPR11MB3814.namprd11.prod.outlook.com> References: <20210208163319.507567-1-bruce.richardson@intel.com> <20210209124951.GE1208@bricha3-MOBL.ger.corp.intel.com> In-Reply-To: <20210209124951.GE1208@bricha3-MOBL.ger.corp.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: dlp-product: dlpe-windows dlp-reaction: no-action dlp-version: 11.5.1.3 authentication-results: intel.com; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR11MB3814.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 3092b244-509a-45a0-c2ab-08d8cd36b289 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Feb 2021 20:10:07.9306 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: /pt/XdOgITCSDlF56dJEiookzRavc/Uc3EMCYu7KJP6RWYrbHjlJzzV8AgL1rsmgwXE/612AhbmNfG07oFD/TA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR11MB3813 X-OriginatorOrg: intel.com Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] eal: fix detection of static or shared DPDK builds X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches <stable.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/stable>, <mailto:stable-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/stable/> List-Post: <mailto:stable@dpdk.org> List-Help: <mailto:stable-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/stable>, <mailto:stable-request@dpdk.org?subject=subscribe> Errors-To: stable-bounces@dpdk.org Sender: "stable" <stable-bounces@dpdk.org> Hi Bruce, Thanks for the fix. I do see the issue mentioned when using DPDK shared libs with OVS and this = patch fixes it. However, I saw the issue only for system installed DPDK but not for directo= ry installed DPDK. =20 > I saw this issue with OVS, where I was getting weird failures about ports= not > being bound (in case of physical ports) or not being created (in case of = virtio > ports), when using a shared build. Since it's potentially serious, I'd ap= preciate > if someone can reproduce the issue and verify the fix so we can consider = it > for 21.02 inclusion. >=20 > To demonstrate this with regular DPDK, do a usual build of DPDK and then = do > "ninja install" to install system-wide. Then build an example app, e.g. > l2fwd, using "make" from the examples/l2fwd directory. Running the > example normally, e.g. ./build/l2fwd -c F00, leads to no drivers being lo= aded > or ports being found. Adding "-d /path/to/drivers" e.g. > "/usr/local/lib/x86_64-linux-gnu/dpdk/pmds-21.1" on my system works as > expected. This shows the driver loading is not correct. >=20 > After applying this patch and re-running "ninja install", l2fwd should ru= n the > same with and without the "-d" flag. >=20 > /Bruce Tested-by: Sunil Pai G <sunil.pai.g@intel.com>