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client-ip=165.204.84.17; helo=satlexmb07.amd.com; pr=C Received: from satlexmb07.amd.com (165.204.84.17) by DS1PEPF00017093.mail.protection.outlook.com (10.167.17.136) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9587.10 via Frontend Transport; Wed, 4 Feb 2026 14:58:53 +0000 Received: from airavat.amd.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.17; Wed, 4 Feb 2026 08:58:50 -0600 From: Raju Rangoju To: CC: , , , , , , , Raju Rangoju Subject: [PATCH net-next v3 0/4] amd-xgbe: add ARP offload and RSS self-tests Date: Wed, 4 Feb 2026 20:28:29 +0530 Message-ID: <20260204145829.801839-1-Raju.Rangoju@amd.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: satlexmb07.amd.com (10.181.42.216) To satlexmb07.amd.com (10.181.42.216) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017093:EE_|SJ0PR12MB6926:EE_ X-MS-Office365-Filtering-Correlation-Id: a996b55e-ec37-402d-3a5c-08de63fde9fb X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|82310400026|36860700013; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: stxXpTJga3C/6uOW22g+6cG6e/mTzoJ9vOsBR93B4sG5Nst0IVGFeVlJo1Sse+YOnG33iLbvQHDqHb1bNEP/1yu5/pVMij9vponIajWeeisrR1RpksZE7/DEwCVTGF0qszNUfxmkmN90bCTRokZLRgqtGfSush3FTmiYVNq1JU4tqqOolADHGKsfAwmF3kUJf5pUh4O1Ho7dqHYz2SkuZtm9Qe/FfoKAhHkRs0F97Ha5JVMAZfgbRnbLfSjNwuOcex4//jmmmrW2GixmPjBCYPgFlfNfEWssOwHP08oZAhqHbs24s1cVZgY/GYXUCv034M0OHUAl/gngEH8m5FSkdZtVAcoHJEmcGXsF1Xa8HPHrI0bHhoP3HV1vSF0ffDoQy0vfbQVfLeIybt2Z/0S5ZhEsQ4Q2W/P4bHlfeaYyki77tT1sgPZF6w6xWXZRjo93 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Feb 2026 14:58:53.5881 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a996b55e-ec37-402d-3a5c-08de63fde9fb X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017093.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB6926 This series adds ARP offload support and ethtool self-tests for the AMD XGBE 10 Gigabit Ethernet driver. Patch 1 is a build fix for randconfig coverage. Patch 2 adds hardware ARP offload functionality that allows the MAC to automatically respond to ARP requests without CPU intervention, reducing system latency and power consumption during suspend/resume and normal operation. Patches 3 and 4 add ethtool self-tests for ARP offload and RSS functionality respectively, allowing users to verify these hardware features are working correctly via 'ethtool -t '. The tests are integrated into the existing XGBE self-test framework that already includes MAC loopback, PHY loopback, split header, and jumbo frame tests. Test results example: $ ethtool -t eth0 The test result is PASS The test extra info: MAC Loopback 0 PHY Loopback 0 Split Header 0 Jumbo Frame 0 ARP Offload 0 RSS 0 Changes since v2: - Fix warnings about line length - Use kfree_skb() instead of kfree() for skb cleanup in self-tests - CC maintainer for patch 1 Changes since v1: - Resubmitting to net-next as this was mistakenly sent to net previously. - Fix INET=n build breakage reported by kernel test robot - Ensure ARP self-test cleanup is safe on all error paths (no dangling packet handler). - Use link-local IPs for self-tests to avoid interfering with real network configuration. Raju Rangoju (4): amd-xgbe: do not select NET_SELFTESTS when INET is disabled amd-xgbe: add hardware ARP offload support amd-xgbe: add ARP offload ethtool self-test amd-xgbe: add RSS ethtool self-test drivers/net/ethernet/amd/Kconfig | 2 +- drivers/net/ethernet/amd/xgbe/xgbe-common.h | 3 + drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 24 +++ drivers/net/ethernet/amd/xgbe/xgbe-selftest.c | 154 +++++++++++++++++- drivers/net/ethernet/amd/xgbe/xgbe.h | 4 + include/net/selftests.h | 1 + 6 files changed, 186 insertions(+), 2 deletions(-) -- 2.34.1