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Miller" , Jakub Kicinski , Russell King , Vladimir Oltean Subject: [PATCH net-next 2/4] enetc: Clean up serdes configuration Date: Mon, 5 Oct 2020 17:28:16 +0300 Message-Id: <20201005142818.15110-3-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201005142818.15110-1-claudiu.manoil@nxp.com> References: <20201005142818.15110-1-claudiu.manoil@nxp.com> Content-Type: text/plain X-Originating-IP: [83.217.231.2] X-ClientProxiedBy: AM0PR04CA0060.eurprd04.prod.outlook.com (2603:10a6:208:1::37) To AM0PR04MB6754.eurprd04.prod.outlook.com (2603:10a6:208:170::28) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv15141.swis.ro-buh01.nxp.com (83.217.231.2) by AM0PR04CA0060.eurprd04.prod.outlook.com (2603:10a6:208:1::37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3433.37 via Frontend Transport; Mon, 5 Oct 2020 14:28:32 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 67f11cf0-bb19-4b1c-8873-08d8693af034 X-MS-TrafficTypeDiagnostic: AM0PR04MB7171: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:24; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 4xn6GThffUYmsB1RAn0QSPUcDtXtWUJFL74egih20aH06JoTc+tepeb75gtPK7zeSnkZde+LreWwhL/16lepmJRdeqVndhUn1AhTbfl6X8v+HWxzXWSvNS53CFcxdTMf3Pi/mXuhNegB1qz85h4AIWOX/Qw4j3xACAove3EiY0a8sg7TEHEL/j/Gy8AjB4QjDtqoTo51b/nFGPHHow4PESUNE9cz9pH8gLUuuW5EPpdjk9QMWQ0lOzSt8gE4fRXaepsocUCMGIpr7w8hrcS1Ngik571h8aZlJdk/4+rG79PGjGVTpOaYq4rnIwfmEZVzWiNNrv9kDLt7xiQki3oDvg== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:AM0PR04MB6754.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(4636009)(396003)(136003)(39860400002)(376002)(346002)(366004)(36756003)(6486002)(8676002)(2616005)(4326008)(956004)(6666004)(2906002)(7696005)(52116002)(6916009)(16526019)(26005)(8936002)(186003)(86362001)(54906003)(1076003)(478600001)(316002)(83380400001)(66476007)(44832011)(66946007)(5660300002)(66556008);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: DovgA9BDJ2UuJoF1TNTva8uR8H/ZsPwZEyfOoXuNbUtundQZdmUj3iUt3czPzvtKHiQPVmqlDDYnQilc7zxO0EgEOqVWxne0T1IwMF/eSjhdf4TCmzTQ2a5riWWfpdLMqMgEnLHV/n+dDiEaUZ1Z7tHNwkoRG7rVJv1/Qo0iMZxBsqhVu6y7shwVPtSh3lOapbcbXMhhS61JtHkoCPKZjqJVni3FbjO1W0xVg9SC5YK3kryFlxKjs6fqONCGxZ8CKNbnQZGqA6GXyWDvnIrjJUGCvV840bbOQQzwsoSg+ko5Wy/ZvPVYY4+klSf3ObN/sWS6UPIezI5evL9UOyBjWi2bsUzPavWtKiu82qMZhaCaziNV40w9vHCQnkAlY0LBm3sICRMP0OAdd/2VQ7HPFRZCdds7ZYH/vIfJVjglAdVkF1Vy5m2mYD0oCJi8GOqiYV4X20ZPz3sJXL2LZwVOAUtSMEFa0TiZUY9jZNo7Zfz4G7SRsf+8XVim5H2x4jqjjnCjXsN7W0RoqYe/5VBPi5zAMdR+tdGMm7LLRXH3dW7Zl8D5omu6M0mKB5woUgrvd1DkN/L/ocDAr1AtRThaiaR97jXZIdwtzA97GC2Mzincw6f3tvmdCjiGlJDVH6WMD6L2VCbE2vecU8zjAgZ0RQ== X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 67f11cf0-bb19-4b1c-8873-08d8693af034 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB6754.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Oct 2020 14:28:33.5117 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ZwZIpQngQmLmhGwEdvySHxTD6a/aSgS0sQ8uWyZvvOlVbhBARU7o3Be7jSa8TDNqzmNJqEwDWWztXtlgleTsvQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB7171 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Decouple internal mdio bus creation from serdes configuration, as a prerequisite to offloading serdes configuration to a different module. Group together mdio bus creation routines, cleanup. Signed-off-by: Claudiu Manoil --- .../net/ethernet/freescale/enetc/enetc_pf.c | 101 +++++++++--------- 1 file changed, 48 insertions(+), 53 deletions(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index 64596731c1c9..6c533bf9e615 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -775,25 +775,7 @@ static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np) return 0; } -static int enetc_mdiobus_create(struct enetc_pf *pf) -{ - struct device *dev = &pf->si->pdev->dev; - struct device_node *mdio_np; - int err; - - mdio_np = of_get_child_by_name(dev->of_node, "mdio"); - if (mdio_np) { - err = enetc_mdio_probe(pf, mdio_np); - - of_node_put(mdio_np); - if (err) - return err; - } - - return 0; -} - -static void enetc_mdiobus_destroy(struct enetc_pf *pf) +static void enetc_mdio_remove(struct enetc_pf *pf) { if (pf->mdio) mdiobus_unregister(pf->mdio); @@ -844,7 +826,7 @@ static void enetc_of_put_phy(struct enetc_pf *pf) of_node_put(pf->phy_node); } -static int enetc_imdio_init(struct enetc_pf *pf, bool is_c45) +static int enetc_imdio_create(struct enetc_pf *pf) { struct device *dev = &pf->si->pdev->dev; struct enetc_mdio_priv *mdio_priv; @@ -872,7 +854,7 @@ static int enetc_imdio_init(struct enetc_pf *pf, bool is_c45) goto free_mdio_bus; } - pcs = get_phy_device(bus, 0, is_c45); + pcs = get_phy_device(bus, 0, pf->if_mode == PHY_INTERFACE_MODE_USXGMII); if (IS_ERR(pcs)) { err = PTR_ERR(pcs); dev_err(dev, "cannot get internal PCS PHY (%d)\n", err); @@ -901,6 +883,45 @@ static void enetc_imdio_remove(struct enetc_pf *pf) } } +static bool enetc_port_has_pcs(struct enetc_pf *pf) +{ + return (pf->if_mode == PHY_INTERFACE_MODE_SGMII || + pf->if_mode == PHY_INTERFACE_MODE_2500BASEX || + pf->if_mode == PHY_INTERFACE_MODE_USXGMII); +} + +static int enetc_mdiobus_create(struct enetc_pf *pf) +{ + struct device *dev = &pf->si->pdev->dev; + struct device_node *mdio_np; + int err; + + mdio_np = of_get_child_by_name(dev->of_node, "mdio"); + if (mdio_np) { + err = enetc_mdio_probe(pf, mdio_np); + + of_node_put(mdio_np); + if (err) + return err; + } + + if (enetc_port_has_pcs(pf)) { + err = enetc_imdio_create(pf); + if (err) { + enetc_mdio_remove(pf); + return err; + } + } + + return 0; +} + +static void enetc_mdiobus_destroy(struct enetc_pf *pf) +{ + enetc_mdio_remove(pf); + enetc_imdio_remove(pf); +} + static void enetc_configure_sgmii(struct phy_device *pcs) { /* SGMII spec requires tx_config_Reg[15:0] to be exactly 0x4001 @@ -940,22 +961,9 @@ static void enetc_configure_usxgmii(struct phy_device *pcs) BMCR_RESET | BMCR_ANENABLE | BMCR_ANRESTART); } -static int enetc_configure_serdes(struct enetc_ndev_priv *priv) +static void enetc_configure_serdes(struct enetc_pf *pf) { - bool is_c45 = priv->if_mode == PHY_INTERFACE_MODE_USXGMII; - struct enetc_pf *pf = enetc_si_priv(priv->si); - int err; - - if (priv->if_mode != PHY_INTERFACE_MODE_SGMII && - priv->if_mode != PHY_INTERFACE_MODE_2500BASEX && - priv->if_mode != PHY_INTERFACE_MODE_USXGMII) - return 0; - - err = enetc_imdio_init(pf, is_c45); - if (err) - return err; - - switch (priv->if_mode) { + switch (pf->if_mode) { case PHY_INTERFACE_MODE_SGMII: enetc_configure_sgmii(pf->pcs); break; @@ -966,18 +974,9 @@ static int enetc_configure_serdes(struct enetc_ndev_priv *priv) enetc_configure_usxgmii(pf->pcs); break; default: - dev_err(&pf->si->pdev->dev, "Unsupported link mode %s\n", - phy_modes(priv->if_mode)); + dev_dbg(&pf->si->pdev->dev, "Unsupported link mode %s\n", + phy_modes(pf->if_mode)); } - - return 0; -} - -static void enetc_teardown_serdes(struct enetc_ndev_priv *priv) -{ - struct enetc_pf *pf = enetc_si_priv(priv->si); - - enetc_imdio_remove(pf); } static int enetc_pf_probe(struct pci_dev *pdev, @@ -1052,9 +1051,8 @@ static int enetc_pf_probe(struct pci_dev *pdev, if (err) goto err_mdiobus_create; - err = enetc_configure_serdes(priv); - if (err) - goto err_configure_serdes; + if (enetc_port_has_pcs(pf)) + enetc_configure_serdes(pf); enetc_mac_config(&pf->si->hw, pf->if_mode); } @@ -1068,8 +1066,6 @@ static int enetc_pf_probe(struct pci_dev *pdev, return 0; err_reg_netdev: - enetc_teardown_serdes(priv); -err_configure_serdes: enetc_mdiobus_destroy(pf); err_mdiobus_create: enetc_of_put_phy(pf); @@ -1094,7 +1090,6 @@ static void enetc_pf_remove(struct pci_dev *pdev) struct enetc_ndev_priv *priv; priv = netdev_priv(si->ndev); - enetc_teardown_serdes(priv); enetc_mdiobus_destroy(pf); enetc_of_put_phy(pf); -- 2.17.1