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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MW2PR12MB2492.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2ec39b16-b65a-473f-4c59-08d8e4c7ff3a X-MS-Exchange-CrossTenant-originalarrivaltime: 11 Mar 2021 19:58:10.3771 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: bDaq7OYvxzQzOgOOE0J9+fR16CD3onibvaCQtToO6qEWmVEuwTCvacXns1O9vYc4x/+gN5ORkbF9fZaP8Gwn7w== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1201MB2509 Subject: Re: [dpdk-stable] [PATCH] net/mlx5: fix Rx metadata leftovers X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" From: Viacheslav Ovsiienko > The Rx metadata might use the metadata register C0 to keep the values. Th= e > same register C0 might be used by kernel for source vport value handling, > kernel uses upper half of the register, leaving the lower half for applic= ation > usage. >=20 > In the extended metadata mode 1 (dv_xmeta_en devarg is assigned with valu= e > 1) the metadata width is 16 bits only, the Rx datapath code fetched the e= ntire > 32-bit value of the metadata register and presented one to application. T= he > patch provides data masking depending on the chosen metadata mode. >=20 > Fixes: 6c55b622a956 ("net/mlx5: set dynamic flow metadata in Rx queues") > Cc: stable@dpdk.org >=20 > Signed-off-by: Viacheslav Ovsiienko Acked-by: Matan Azrad