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dpdk.org; dkim=none (message not signed) header.d=none;dpdk.org; dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.112.34 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.112.34; helo=mail.nvidia.com; Received: from mail.nvidia.com (216.228.112.34) by DM6NAM11FT051.mail.protection.outlook.com (10.13.172.243) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4129.25 via Frontend Transport; Wed, 12 May 2021 10:21:22 +0000 Received: from nvidia.com (172.20.145.6) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 12 May 2021 10:21:19 +0000 From: Shun Hao To: , , , , CC: , , , , Date: Wed, 12 May 2021 13:20:59 +0300 Message-ID: <20210512102100.23870-1-shunh@nvidia.com> X-Mailer: git-send-email 2.20.0 MIME-Version: 1.0 X-Originating-IP: [172.20.145.6] X-ClientProxiedBy: HQMAIL111.nvidia.com (172.20.187.18) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 54af033b-171e-419e-4c4a-08d9152fb0f5 X-MS-TrafficTypeDiagnostic: DM6PR12MB2844: X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1265; 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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 May 2021 10:21:22.4858 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 54af033b-171e-419e-4c4a-08d9152fb0f5 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT051.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB2844 X-Mailman-Approved-At: Wed, 12 May 2021 14:13:12 +0200 Subject: [dpdk-dev] [PATCH v1] net/mlx5: fix meter flow id 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" When getting meter flow_id bits, there's an issue that not handling correctly if flow_id is 0. This fix this issue that when flow_id is 0, treat it as 1 bit. Fixes: 83306d6c46 ("net/mlx5: fix meter statistics") Cc: stable@dpdk.org Signed-off-by: Shun Hao --- drivers/net/mlx5/mlx5_flow.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index 32634c9af7..edfac0d99f 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -4794,8 +4794,8 @@ flow_meter_split_prep(struct rte_eth_dev *dev, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, "Failed to allocate meter flow id."); flow_id = tag_id - 1; - flow_id_bits = MLX5_REG_BITS - __builtin_clz(flow_id); - flow_id_bits = flow_id_bits ? flow_id_bits : 1; + flow_id_bits = (!flow_id) ? 1 : + (MLX5_REG_BITS - __builtin_clz(flow_id)); if ((flow_id_bits + priv->sh->mtrmng->max_mtr_bits) > mtr_reg_bits) { mlx5_ipool_free(fm->flow_ipool, tag_id);