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Mon, 17 Nov 2025 13:19:29 -0800 From: Tariq Toukan To: Eric Dumazet , Jakub Kicinski , Paolo Abeni , Andrew Lunn , "David S. Miller" CC: Jay Vosburgh , Saeed Mahameed , "Tariq Toukan" , Mark Bloch , Leon Romanovsky , Heiner Kallweit , , , , Gal Pressman , Moshe Shemesh , Shahar Shitrit , Yael Chemla , Dragos Tatulea Subject: [PATCH net-next 0/3] net: Add 1600Gbps (1.6T) link mode support Date: Mon, 17 Nov 2025 23:18:57 +0200 Message-ID: <1763414340-1236872-1-git-send-email-tariqt@nvidia.com> X-Mailer: git-send-email 2.8.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL02EPF00021F6B:EE_|SJ1PR12MB6313:EE_ X-MS-Office365-Filtering-Correlation-Id: 8653932c-997d-40d6-aa5f-08de261f08f5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|7416014|376014|1800799024|36860700013|13003099007; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?lykk8E1xCHQ1tqS0wc+Z3Z/HOLdx8eDvmxGSP9N9NZpcW5HVnUOc5gTZodjw?= =?us-ascii?Q?MWVGfYxJniRrbRO/P3wi/WKeTjrE0Y0KQrAT7nejN7SjZKphdLcWv1iSJ1qB?= =?us-ascii?Q?sGtFzUl7r8JkbZVCrTl8Zjn5E8MFwcbLK6cEg611L2Pyo1GbHV/pZqNzQnGR?= =?us-ascii?Q?PSQlfcp37Vc511aPUKbopU4k309dOM5oc1aIfvvLI8xta7Qu/FIbqZs6pyoF?= =?us-ascii?Q?GqQE1YPhzl90aZD7ZfATdW0OyHOBP20fJqNDZVUJ5q7eA7fGpHn+gGWKcnWu?= =?us-ascii?Q?3R9/oUlZNabWtjjVzGfYcIIXBW9mJfbgYc2RBAZOu+zz0sMt+2IhFRecnUwd?= =?us-ascii?Q?pU0roC0EzqYK4nUFqF1qDud0zFhZAB/qhuoNhDz1sOBcPSt6hhJanLOarOqt?= =?us-ascii?Q?65L8Uu/RFkOne502dNn9oiMcWv5AOGpOHErYTSMNg/SyaqvpGV2D5BuODD2m?= =?us-ascii?Q?0KMF/4fjFpwNGeXsaJPthPFtpSvNNnrRXO/TYL8VU7p+1cO+0+bfPQrvGPT+?= =?us-ascii?Q?26V5MOryzh1Ryr7gBZArfyR5en1PZvDG+4YFnIpiOXAYp0c+zTmiiFZxMGgY?= =?us-ascii?Q?051cHChrAgU/Yn7For5RS8M+SGhvFNkrz4VYFAct3qw+hA0rWvN1dcWg/EF2?= =?us-ascii?Q?yz/W8BrCuosM1xdE1vrBdFf44/ohw81b+sjFH5+TZGqjEXcH7v1V/p7bkLQT?= =?us-ascii?Q?v68bgxinDFdf59iyzbFY/udM5+aYLxad1ZEliavrnOErP9BQZih+IFsN/uhc?= =?us-ascii?Q?MyKAbPZpZuMrFBlRjS2+0mgxJEFKPPtucmtqxDF8Mh0EvJpdUi/Kcx7lSwoX?= =?us-ascii?Q?hzz70l31bKvhvLyeXZ4pYEe073C3g19AlUms240UalcEF2JWzaDQzL6Tz+aC?= =?us-ascii?Q?Spi+I1C1eAP9oy5cfRwWDggMpB97lfxRUfmEwo/i6LFCPT6XjAt5waxwLQ5R?= =?us-ascii?Q?hJ8xSmTw64VLsFBLdLgeIVksHtgbXdWAYlrrxITfXNAzYqzbp7nvdA+mLNTk?= =?us-ascii?Q?tgnKKOUnWSUqqbrjlHZP5t14vx/ygsCXyRO0noWlABE8C7gmK67TCCV68hVa?= =?us-ascii?Q?677RgKSosXn177LMbYQJFf81Pi/GHmD/KrW381Z4VhJIAvBbPuLzPULbJ5Aa?= =?us-ascii?Q?pgRgoWwshGf010Zi7tvh3Zh4/Z66mik5qQ3LtoqNgRH4jeGU+mGG2iOIQN7v?= =?us-ascii?Q?MaNvZj4mvRuieVway3LT4lrTIOdoQxThn8cF9YP+ZfO3TFzN3iqqew4HbXbD?= =?us-ascii?Q?iiTlmiP76zJDzd4pmzru+niB7JM7QJOFLvmoEfuFLG7b/Irm+lT6PggdwLRu?= =?us-ascii?Q?dzOFkuBVKgq2PlvNMRSipmRZQkYwlZzXnv8Zp2P/n5QtFWLcGqs1Zagn/JYc?= =?us-ascii?Q?cTblnAezDkf/1yCLf5xxbCjgbH4FqqR02gOf1cW3S2RSsjfKcT4Z3SjA5FBD?= =?us-ascii?Q?UpMvUs4agenk3pqI7qJ8oYc/lI3/59HWnTrRxg9umhJAz6kQ/+rF3EelWbqP?= =?us-ascii?Q?UEYecYKT0ygGBw/wJ80vm3//IqE6BR0Da7elRm7/0oetIqq1cgda148Kibia?= =?us-ascii?Q?pZ88BeHY/vuZc/0rdh0=3D?= X-Forefront-Antispam-Report: CIP:216.228.118.233;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc7edge2.nvidia.com;CAT:NONE;SFS:(13230040)(82310400026)(7416014)(376014)(1800799024)(36860700013)(13003099007);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Nov 2025 21:19:46.7581 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8653932c-997d-40d6-aa5f-08de261f08f5 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.233];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL02EPF00021F6B.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ1PR12MB6313 This series by Yael adds 1600Gbps (1.6T) link mode support. See detailed description by Yael below. Regards, Tariq This series adds 1600Gbps (1.6T) link mode support end-to-end. - Introduces 1600Gbps ethtool link modes based on 200Gbps-per-lane signaling from IEEE 802.3dj, including KR8/CR8/DR8/DR8-2 PMDs. - Wires up mlx5e to advertise and handle the new modes (8 lanes x 200Gbps). - Extends bonding 802.3ad to accept and operate with 1600Gbps links. User-visible effects: - ethtool will report and advertise 1600Gbps modes and PMDs where supported. - mlx5 devices capable of 8x200Gbps lanes will expose 1600Gbps. - LACP (bonding 3ad) will accept and utilize 1600Gbps partner links. Compatibility: - UAPI additions only; existing users are unaffected. - The new link modes/PMDs are additive and aligned with IEEE 802.3dj 200G/lane definitions. Testing: - Verified ethtool reporting/advertisement and 1600Gbps link bring-up using simulated mlx5 hardware. - No regressions observed at lower speeds. References: [1] https://www.ieee802.org/3/dj/public/23_03/opsasnick_3dj_01a_2303.pdf [2] https://www.ieee802.org/3/dj/projdoc/objectives_P802d3dj_240314.pdf Yael Chemla (3): net: ethtool: Add support for 1600Gbps speed net/mlx5e: Add 1600Gbps link modes bonding: 3ad: Add support for 1600G speed drivers/net/bonding/bond_3ad.c | 9 +++++++++ drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c | 5 +++++ drivers/net/ethernet/mellanox/mlx5/core/port.c | 1 + drivers/net/phy/phy-core.c | 4 +++- include/uapi/linux/ethtool.h | 5 +++++ net/ethtool/common.c | 8 ++++++++ 6 files changed, 31 insertions(+), 1 deletion(-) base-commit: c9dfb92de0738eb7fe6a591ad1642333793e8b6e -- 2.31.1