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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: AM4PR05MB3265.eurprd05.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0d017683-7985-48eb-ded1-08d82999a891 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Jul 2020 15:05:20.6163 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: q8iNJ+aqD1BxFQLt9hz8XZkkXeTs9KZoqedLXVqGblgjLzQgLAHRt5+XQvK+JQIq9Llg6r0kX3LWqTUQsHxr5jjoiQ1psVDaQ3sGNsOGDxY= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR05MB6737 Subject: Re: [dpdk-dev] [PATCH v3 5/7] net/mlx5: create and destroy eCPRI flex parser 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> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> > -----Original Message----- > From: Bing Zhao <bingz@mellanox.com> > Sent: Thursday, July 16, 2020 17:24 > To: Ori Kam <orika@mellanox.com>; Slava Ovsiienko > <viacheslavo@mellanox.com> > Cc: Raslan Darawsheh <rasland@mellanox.com>; Matan Azrad > <matan@mellanox.com>; dev@dpdk.org; Netanel Gonen > <netanelg@mellanox.com> > Subject: [PATCH v3 5/7] net/mlx5: create and destroy eCPRI flex parser >=20 > eCPRI protocol has unified format layout for the variants, over ETH layer > (including .1Q) and UDP layer. >=20 > The common header of the message has 4 bytes fixed length, and the > message payload layers are different based on the type field. Now only ty= pe > #0, #2 and #5 will be supported, and 2 bytes are needed. >=20 > When creating the flex parser, the header will be extended to 8 bytes and= 2 > DW samples are needed. The 1st DW starts from offset 0 and will be used f= or > the type field of the common header. The 2nd DW starts from offset 4 and > will be used for the physical channel ID, real-time control ID or measure= ment > ID fields. >=20 > The parser will be created once a flow with eCPRI item is observed for th= e > first time. After creating, it will remain in the system and HW until the= device > is stopped. Right now, there is no need to destroy the eCPRI flex parser = after > the last flow with eCPRI item is destroyed. This is to get rid of the alt= ernate > states of creating and destroying eCPRI flex parser with a single eCPRI f= low. >=20 > Signed-off-by: Bing Zhao <bingz@mellanox.com> Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>