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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: DM6PR12MB2748.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5ec4d6ca-2f9d-41f5-2b3b-08d8e896b1bb X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Mar 2021 16:15:19.6707 (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: JJ3Qe4OX3scBq2sv7zu0qcZQs/KDMPOJSFxtqkCz/DIsvKw6njYi5CsnlNV6Jld5gcWBiUZPwu8t9WO72L6yFQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3068 Subject: Re: [dpdk-dev] [PATCH] net/mlx5: fix Rx metadata leftovers X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Hi, > -----Original Message----- > From: Viacheslav Ovsiienko > Sent: Sunday, March 7, 2021 1:46 PM > To: dev@dpdk.org > Cc: Raslan Darawsheh ; Matan Azrad > ; Ori Kam ; stable@dpdk.org > Subject: [PATCH] net/mlx5: fix Rx metadata leftovers >=20 > The Rx metadata might use the metadata register C0 to keep the > values. The 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 application usage. >=20 > In the extended metadata mode 1 (dv_xmeta_en devarg is > assigned with value 1) the metadata width is 16 bits only, > the Rx datapath code fetched the entire 32-bit value of the > metadata register and presented one to application. The 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 Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh