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Miller" , Jakub Kicinski , Maxime Coquelin Cc: netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH] net: stmmac: dwmac_lib: enlarge dma reset timeout Message-ID: <20201113090902.5c7aab1a@xhacker.debian> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.32; x86_64-pc-linux-gnu) X-Originating-IP: [192.147.44.204] X-ClientProxiedBy: PH0PR07CA0005.namprd07.prod.outlook.com (2603:10b6:510:5::10) To SN2PR03MB2383.namprd03.prod.outlook.com (2603:10b6:804:d::23) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from xhacker.debian (192.147.44.204) by PH0PR07CA0005.namprd07.prod.outlook.com (2603:10b6:510:5::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3541.21 via Frontend Transport; Fri, 13 Nov 2020 01:09:42 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 9da37048-c95b-4e8f-0c35-08d88770cf53 X-MS-TrafficTypeDiagnostic: SN6PR03MB4543: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4303; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 3nT+4mK5XG+8ahAA2wUs6AQO3PUsfX23/+X8CLNhxGlWT4rg1cxVIaijIg7YNDb1/+03PJc7e/mU4KpTFqPPPNcYG3vaQEkrTIpHhY4ki6IwxNVldA9MrbDeYc2GyViQMiJjMf1F/yj8/OAUrvNlJRXNGLxMnC2aKRSyZEUPhm2pMeb6R0OqWnQkGKCERAmmLgj5tYMEI7HpxcXoarxTsIvHmRrahU+KmNpRQBEoQMT4iBxNy/yOep81yJN1ZPnw/veGfoYHNR9MTvAqgZ2BeDE8lViy3kGm9T3fLHSfwEagKgU0q6hu+oa6qEVh4QZjLSZlyJkxXeOaF+PYexfl3VgKqzL08zomlGNInUhTK5QBpWxwfWU4JQgqKTj/aG4twJyMpVwGyXk9m0wDb8p/IQ== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SN2PR03MB2383.namprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(39860400002)(376002)(396003)(366004)(136003)(346002)(52116002)(186003)(16526019)(6506007)(4744005)(83380400001)(55016002)(5660300002)(956004)(8936002)(110136005)(7416002)(8676002)(7696005)(6666004)(26005)(316002)(478600001)(66946007)(66556008)(86362001)(2906002)(9686003)(4326008)(1076003)(66476007)(161623001)(147533002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: synaptics.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9da37048-c95b-4e8f-0c35-08d88770cf53 X-MS-Exchange-CrossTenant-AuthSource: SN2PR03MB2383.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Nov 2020 01:09:45.9237 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 335d1fbc-2124-4173-9863-17e7051a2a0e X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: wX2nCq8xSClDDi0pNY5wxvlnLunWJiRxFkJLM/pePIPpQj848355dYSxqumXMBmd7oisFq4MK6RiAKffVkv12g== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR03MB4543 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org If the phy enables power saving technology, the dwmac's software reset needs more time to complete, enlarge dma reset timeout to 200000us. Signed-off-by: Jisheng Zhang --- drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c index cb87d31a99df..57a53a600aa5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c @@ -23,7 +23,7 @@ int dwmac_dma_reset(void __iomem *ioaddr) return readl_poll_timeout(ioaddr + DMA_BUS_MODE, value, !(value & DMA_BUS_MODE_SFT_RESET), - 10000, 100000); + 10000, 200000); } /* CSR1 enables the transmit DMA to check for new descriptor */