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Mon, 30 Jul 2018 06:39:45 +0000 From: "Elo, Matias (Nokia - FI/Espoo)" <matias.elo@nokia.com> To: "dev@dpdk.org" <dev@dpdk.org> CC: "Van Haaren, Harry" <harry.van.haaren@intel.com> Thread-Topic: eventdev: method for finding out unlink status Thread-Index: AQHUJ9Aasi5EGf77JEeq3+fzpPRPXA== Date: Mon, 30 Jul 2018 06:39:45 +0000 Message-ID: <A7ECF201-3E1D-418F-A9CB-930F14C37778@nokia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-mailer: Apple Mail (2.3445.9.1) x-originating-ip: [131.228.32.171] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DB7PR07MB3931; 6:YAwbsAtQH59dlR4pdn0B7HIwSrIu9tLsWcodfFdUsnHQaO1yk6vbctDYC6z1oOUB1v7P4xZ8bEu5LCnxee09442tlypaZHf5rtk3Sp8J0fAK61BXl70g1MiUQkOpXX/m1oJVS495Ub8+Tu3vYsS6X2tixiinIXWOVx9wGpwvoCQwqvSmR7ch/so+HU4l7P3meSaa7PEnyKu6cU7ZY2Ucj/MkF3qqZemmayfTDgyKvuW6Jk6Yf2iCqkRKlHwKvUbnp11feM7HGHJA4kBCdT6dNjO3fbEaP0ohC0TGGDY9+IHUiJPe+opKLn2erYpgEblIBKfncvg8Tk6X5UbhloKstm/E7tm19drits81oIkMcOBBDyiqRkL6IMJIOTF+JZ2rwxN28MYrZPn0z1okuQunOm2NUNJ3guqt7hXOeaf20e9lvaZPWz4WL6TKLRVuY68eb9t+mbmxObJ0R3brccNbiQ==; 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DIR:OUT; SFP:1102; SCL:1; SRVR:DB7PR07MB3931; H:DB7PR07MB4556.eurprd07.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: nokia.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: VtBC/3Md1cDGOovFg/HoTNhYWRK1zbxu10h9IZ2Hl2gJhZCD5Zb5ZtpB0txMEYYPW1HiKynhAZxzsKu++FJ0tNRAl+3fgHP/+bTfP1YM0hEgd2jiG8YFQqawcs4pZksTvY+MLP+J9Q6yQno1lYMl/dSQrE+HCGGyOg8q5FaSHuLMBFuOsgAOcc5xis73sDBH4Q6vcRaXoKzU8XNw9C6OoM2gS5HSIDtoVikfnKHJJ+zVFoQDF/ZktC4E2uWzbY7Fw2K7aPGk5bN11s7sM7mkAygHNYS5fE/kXTfei/0lZc9e7zHfDlvMmWVGTEkTEmNvk7EL9TvAvzneVw2pI3hIpE9RzWceMpyZBT18UoDb2SNZjkzd4lcnL+nO/b4O1LIrnQ5wUSp4IBz4k6yLAwpH+A== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-ID: <7A04317182630243BEBC02E17CF14A9A@eurprd07.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nokia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6f1709f4-782e-41bb-711e-08d5f5e73d1e X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Jul 2018 06:39:45.3558 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 5d471751-9675-428d-917b-70f44f9630b0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR07MB3931 Subject: [dpdk-dev] eventdev: method for finding out unlink status X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Mon, 30 Jul 2018 06:39:47 -0000 Hi, In bug report https://bugs.dpdk.org/show_bug.cgi?id=3D60 we have been discu= ssing issues related to events ending up in wrong ports after calling rte_event_port_unlink(). In addition of finding few bugs we have identified= a need for a new API call (or documentation extension) for an application to = be able to find out when an unlink() call has finished and no new events are scheduled anymore to the particular event port. This is required e.g. when = doing clean-up after an application thread stops processing events. The bug report discussion provides more background on the subject and Harry= has already proposed a new 'int32_t rte_event_unlinks_in_progress()' API as one possible solution. -Matias