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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 SJ1PEPF00001CDD.mail.protection.outlook.com (10.167.242.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9723.19 via Frontend Transport; Tue, 24 Mar 2026 14:54:04 +0000 Received: from SATLEXMB04.amd.com (10.181.40.145) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.2562.17; Tue, 24 Mar 2026 09:54:01 -0500 Received: from satlexmb07.amd.com (10.181.42.216) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Tue, 24 Mar 2026 09:54:00 -0500 Received: from xhdsuragupt40.xilinx.com (10.180.168.240) by satlexmb07.amd.com (10.181.42.216) with Microsoft SMTP Server id 15.2.2562.17 via Frontend Transport; Tue, 24 Mar 2026 09:53:57 -0500 From: Suraj Gupta To: , , , , , , , , CC: , , , Subject: [PATCH net 1/2] net: xilinx: axienet: Correct BD length masks to match AXIDMA IP spec Date: Tue, 24 Mar 2026 20:23:51 +0530 Message-ID: <20260324145353.1899248-2-suraj.gupta2@amd.com> X-Mailer: git-send-email 2.49.1 In-Reply-To: <20260324145353.1899248-1-suraj.gupta2@amd.com> References: <20260324145353.1899248-1-suraj.gupta2@amd.com> 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 Received-SPF: None (SATLEXMB04.amd.com: suraj.gupta2@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ1PEPF00001CDD:EE_|SA1PR12MB7412:EE_ X-MS-Office365-Filtering-Correlation-Id: 12bd650c-1948-4812-e029-08de89b531a5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|7416014|36860700016|1800799024|82310400026|18002099003|22082099003|56012099003; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: H/6p7MMr1Z1OmzC6E7sevTkVX1d7Spg2LSBGr/vL98I4XZl3vVE4lyPwT5h/6jir5hP8fFnybP1mDh7VNs4ODzeMItKUxsuBOBqLGhcc96qwsPCXX56KQOLTJdoxC7PjhFd3NKqARdL9VF359w6I1fOfe2wkE9VQLUksLwRfp4T3nP/W8BOrIZFiTE2nhhcePvdLLxwgsxxxfZlDY/BbUd9hfMSKCmPMMvhjqkVCeA0d7S7R2aWTHWdrI0865OQNZPFwEPbzucO3CJqQg70cfDieJFywmWcN8prPWR2M8T5Dd6IqqpOkNzbuQgEQhSv03SmNxhD/HUxPJgkRSDzRBCuk5BM089rTsTdosuPC38iLbThc4/zHmgZ7DN+/xYtIsQBq++4hMK3xs3uZ/gC1c0MrhyPy6IF5qU/xr76VsA6juh69vgXDQnO1FSykYGDu X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Mar 2026 14:54:04.6846 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 12bd650c-1948-4812-e029-08de89b531a5 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: SJ1PEPF00001CDD.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: SA1PR12MB7412 The XAXIDMA_BD_CTRL_LENGTH_MASK and XAXIDMA_BD_STS_ACTUAL_LEN_MASK macros were defined as 0x007FFFFF (23 bits), but the AXI DMA IP product guide (PG021) specifies the buffer length field as bits 25:0 (26 bits). Update both masks to 0x03FFFFFF to match the IP documentation. In practice this had no functional impact, since Ethernet frames are far smaller than 2^23 bytes and the extra bits were always zero, but the masks should still reflect the hardware specification. Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver") Signed-off-by: Suraj Gupta --- drivers/net/ethernet/xilinx/xilinx_axienet.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h index 5ff742103beb..602389843342 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet.h +++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h @@ -105,7 +105,7 @@ #define XAXIDMA_BD_HAS_DRE_MASK 0xF00 /* Whether has DRE mask */ #define XAXIDMA_BD_WORDLEN_MASK 0xFF /* Whether has DRE mask */ -#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x007FFFFF /* Requested len */ +#define XAXIDMA_BD_CTRL_LENGTH_MASK 0x03FFFFFF /* Requested len */ #define XAXIDMA_BD_CTRL_TXSOF_MASK 0x08000000 /* First tx packet */ #define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */ @@ -130,7 +130,7 @@ #define XAXIDMA_BD_CTRL_TXEOF_MASK 0x04000000 /* Last tx packet */ #define XAXIDMA_BD_CTRL_ALL_MASK 0x0C000000 /* All control bits */ -#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x007FFFFF /* Actual len */ +#define XAXIDMA_BD_STS_ACTUAL_LEN_MASK 0x03FFFFFF /* Actual len */ #define XAXIDMA_BD_STS_COMPLETE_MASK 0x80000000 /* Completed */ #define XAXIDMA_BD_STS_DEC_ERR_MASK 0x40000000 /* Decode error */ #define XAXIDMA_BD_STS_SLV_ERR_MASK 0x20000000 /* Slave error */ -- 2.49.1