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Sun, 24 Jan 2021 09:32:22 +0000 From: Raslan Darawsheh To: Alexander Kozyrev , "dev@dpdk.org" CC: "stable@dpdk.org" , Slava Ovsiienko , Matan Azrad Thread-Topic: [PATCH] net/mlx5: fix wrong Flow Tag decompression Thread-Index: AQHW6rzCC5QtCqOBNUGexGeGefU/TKo2khAA Date: Sun, 24 Jan 2021 09:32:22 +0000 Message-ID: References: <20210114213219.30593-1-akozyrev@nvidia.com> In-Reply-To: <20210114213219.30593-1-akozyrev@nvidia.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: nvidia.com; dkim=none (message not signed) header.d=none;nvidia.com; dmarc=none action=none header.from=nvidia.com; x-originating-ip: [188.161.230.199] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 4bdf8706-7478-4b92-9be6-08d8c04af3f8 x-ms-traffictypediagnostic: DM5PR12MB1418: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:6430; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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b=BhNxaTf7Xf49H/iXVoqxltatA1xNH/BbtVI0K5lAo2olxns8CMxX8T9OmW6fAyL0T nDh1W8GtDFvng6L2+ivJJYgroz5Gqu8ZCERqB2Kw7OHJQrUNISiTIiKTfqm1a5hD/U ugiWld8q1iDgGC9zk9vEpPFS3VyXg2+wBYhUPb4KsgU2uMKYU4Py6C2ui+weIM1w6H sevIhlJbiC1j91YR3+e/mADbKHbGeSW6BW7ZJl0TpUusjeUeEZX5bEiZ1L1vJo91HP lNfnpgGnI14RC4VgSponwtN62xVi5+rJUQgadxCSKOTqOloKav8dVwqi62dwRKmtwi qZA88mhSgnmSg== Subject: Re: [dpdk-dev] [PATCH] net/mlx5: fix wrong Flow Tag decompression 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: Alexander Kozyrev > Sent: Thursday, January 14, 2021 11:32 PM > To: dev@dpdk.org > Cc: stable@dpdk.org; Raslan Darawsheh ; Slava > Ovsiienko ; Matan Azrad > Subject: [PATCH] net/mlx5: fix wrong Flow Tag decompression >=20 > Packets can get a wrong Flow Tag on x86 architecture with the Flow Tag > compression format (rxq_cqe_comp_en=3D2) enabled inside the SSE Rx burst. > The shuffle mask that extracts a Flow Tag from the pair of compressed > CQEs is reversed. This leads to the wrong Flow Tag assignment. > Correct the shuffle mask to get proper bytes for a Flow Tag from miniCQEs= . >=20 > Fixes: 54c2d46b160 ("net/mlx5: support flow tag and packet header > miniCQEs") > Cc: stable@dpdk.org >=20 > Signed-off-by: Alexander Kozyrev > --- Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh