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dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.117.160 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.117.160; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (216.228.117.160) by SA2PEPF00003AE8.mail.protection.outlook.com (10.167.248.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8466.11 via Frontend Transport; Thu, 20 Feb 2025 08:06:39 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by mail.nvidia.com (10.129.200.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.4; Thu, 20 Feb 2025 00:06:27 -0800 Received: from shredder.mtl.com (10.126.230.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.14; Thu, 20 Feb 2025 00:06:23 -0800 From: Ido Schimmel To: CC: , , , , , , , , , Ido Schimmel Subject: [PATCH net-next 0/6] net: fib_rules: Add DSCP mask support Date: Thu, 20 Feb 2025 10:05:19 +0200 Message-ID: <20250220080525.831924-1-idosch@nvidia.com> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: rnnvmail203.nvidia.com (10.129.68.9) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA2PEPF00003AE8:EE_|LV3PR12MB9216:EE_ X-MS-Office365-Filtering-Correlation-Id: b067b98c-c262-41c9-5f4f-08dd51858163 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|376014|82310400026|1800799024|13003099007; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 20 Feb 2025 08:06:39.8658 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: b067b98c-c262-41c9-5f4f-08dd51858163 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SA2PEPF00003AE8.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV3PR12MB9216 X-Patchwork-Delegate: kuba@kernel.org In some deployments users would like to encode path information into certain bits of the IPv6 flow label, the UDP source port and the DSCP field and use this information to route packets accordingly. Redirecting traffic to a routing table based on specific bits in the DSCP field is not currently possible. Only exact match is currently supported by FIB rules. This patchset extends FIB rules to match on the DSCP field with an optional mask. Patches #1-#5 gradually extend FIB rules to match on the DSCP field with an optional mask. Patch #6 adds test cases for the new functionality. iproute2 support can be found here [1]. [1] https://github.com/idosch/iproute2/tree/submit/fib_rule_mask_v1 Ido Schimmel (6): net: fib_rules: Add DSCP mask attribute ipv4: fib_rules: Add DSCP mask matching ipv6: fib_rules: Add DSCP mask matching net: fib_rules: Enable DSCP mask usage netlink: specs: Add FIB rule DSCP mask attribute selftests: fib_rule_tests: Add DSCP mask match tests Documentation/netlink/specs/rt_rule.yaml | 5 ++ include/uapi/linux/fib_rules.h | 1 + net/core/fib_rules.c | 1 + net/ipv4/fib_rules.c | 47 +++++++++++++++++-- net/ipv6/fib6_rules.c | 45 +++++++++++++++++- tools/testing/selftests/net/fib_rule_tests.sh | 38 +++++++++++++++ 6 files changed, 132 insertions(+), 5 deletions(-) Reviewed-by: Guillaume Nault