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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by SN1PEPF00036F43.mail.protection.outlook.com (10.167.248.27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.7544.18 via Frontend Transport; Tue, 7 May 2024 12:43:42 +0000 Received: from cae-Lilac-RMB.amd.com (10.180.168.240) 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 15.1.2507.35; Tue, 7 May 2024 07:43:34 -0500 From: Venkat Kumar Ande To: CC: , Venkat Kumar Ande , Subject: [PATCH v2 03/25] net/axgbe: fix fluctuations for 1G BELFUSE SFP Date: Tue, 7 May 2024 18:12:43 +0530 Message-ID: <20240507124305.2318-3-venkatkumar.ande@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240507124305.2318-1-venkatkumar.ande@amd.com> References: <20240412125013.10498-1-VenkatKumar.Ande@amd.com> <20240507124305.2318-1-venkatkumar.ande@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF00036F43:EE_|DM4PR12MB7599:EE_ X-MS-Office365-Filtering-Correlation-Id: d7109a7b-44d9-4993-1d04-08dc6e9353cd X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:SATLEXMB04.amd.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230031)(36860700004)(376005)(1800799015)(82310400017); DIR:OUT; SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 May 2024 12:43:42.4341 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d7109a7b-44d9-4993-1d04-08dc6e9353cd 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SN1PEPF00036F43.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR12MB7599 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Frequent link up/down events can happen when a Bel Fuse SFP part is connected to the amd-xgbe device. Try to avoid the frequent link issues by resetting the PHY as documented in Bel Fuse SFP datasheets. Without the fix user will see continuous port link up and down. Fixes: a5c7273771e8 ("net/axgbe: add phy programming APIs") Cc: stable@dpdk.org Signed-off-by: Venkat Kumar Ande --- drivers/net/axgbe/axgbe_phy_impl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c index 54fe9faae0..ee9dcbe3da 100644 --- a/drivers/net/axgbe/axgbe_phy_impl.c +++ b/drivers/net/axgbe/axgbe_phy_impl.c @@ -578,6 +578,9 @@ static bool axgbe_phy_belfuse_parse_quirks(struct axgbe_port *pdata) AXGBE_BEL_FUSE_VENDOR, strlen(AXGBE_BEL_FUSE_VENDOR))) return false; + /* Reset PHY - wait for self-clearing reset bit to clear */ + pdata->phy_if.phy_impl.reset(pdata); + if (!memcmp(&sfp_eeprom->base[AXGBE_SFP_BASE_VENDOR_PN], AXGBE_BEL_FUSE_PARTNO, strlen(AXGBE_BEL_FUSE_PARTNO))) { phy_data->sfp_base = AXGBE_SFP_BASE_1000_SX; -- 2.34.1