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b=EcSswzuJ/X4SjUUCOR4yzfajyuZbavayThzmIxs+Epyd4f35yvM1MGxzBcOpMxAlTqjuxy3UscA5wDZwC3ZZgQMSzBvqrlSccSJ4K8W9DbZB3mhhdhJsJjHYmHHII85VDQZ3Dmnh7gv90RijmWnBc18gHiQjDWaZZjLrsEPerfLV7cY74CPBIS49MqWTmSFenezdsk1CtcrMc5qJEfHl+9BB4uo5/9xDsTPJvzv80xxB742Nlak/jVECvVa6HS1z9G64Vgnkbj2F01gDCL/Yw+BZAtXrhoC8qkzCN3TtnDVBGTNvuUTdhUaIedzgdHQcfFMt7TZvW+QlaRa8jc5Axw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nxp.com; Received: from PAXPR04MB8510.eurprd04.prod.outlook.com (2603:10a6:102:211::7) by PAXPR04MB9153.eurprd04.prod.outlook.com (2603:10a6:102:22b::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8069.18; Thu, 24 Oct 2024 07:09:08 +0000 Received: from PAXPR04MB8510.eurprd04.prod.outlook.com ([fe80::a7c2:e2fa:8e04:40db]) by PAXPR04MB8510.eurprd04.prod.outlook.com ([fe80::a7c2:e2fa:8e04:40db%7]) with mapi id 15.20.8069.027; Thu, 24 Oct 2024 07:09:08 +0000 From: Wei Fang To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, vladimir.oltean@nxp.com, claudiu.manoil@nxp.com, xiaoning.wang@nxp.com, Frank.Li@nxp.com, christophe.leroy@csgroup.eu, linux@armlinux.org.uk, bhelgaas@google.com, horms@kernel.org Cc: imx@lists.linux.dev, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, alexander.stein@ew.tq-group.com Subject: [PATCH v5 net-next 05/13] net: enetc: extract common ENETC PF parts for LS1028A and i.MX95 platforms Date: Thu, 24 Oct 2024 14:53:20 +0800 Message-Id: <20241024065328.521518-6-wei.fang@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241024065328.521518-1-wei.fang@nxp.com> References: <20241024065328.521518-1-wei.fang@nxp.com> X-ClientProxiedBy: SI2PR04CA0011.apcprd04.prod.outlook.com (2603:1096:4:197::10) To PAXPR04MB8510.eurprd04.prod.outlook.com (2603:10a6:102:211::7) Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB8510:EE_|PAXPR04MB9153:EE_ X-MS-Office365-Filtering-Correlation-Id: 55644329-e929-4b05-2bca-08dcf3fac10e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|52116014|366016|7416014|376014|1800799024|38350700014|921020; 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To reduce code redundancy and prepare for a new driver for rev 4.1 and later, extract shared interfaces from enetc_pf.c and move them to enetc_pf_common.c. This refactoring lays the groundwork for compiling enetc_pf_common.c into a shared driver for both platforms' PF drivers. Signed-off-by: Wei Fang Reviewed-by: Frank Li Reviewed-by: Claudiu Manoil --- v5: no changes --- drivers/net/ethernet/freescale/enetc/Makefile | 2 +- .../net/ethernet/freescale/enetc/enetc_pf.c | 297 +----------------- .../net/ethernet/freescale/enetc/enetc_pf.h | 13 + .../freescale/enetc/enetc_pf_common.c | 295 +++++++++++++++++ 4 files changed, 313 insertions(+), 294 deletions(-) create mode 100644 drivers/net/ethernet/freescale/enetc/enetc_pf_common.c diff --git a/drivers/net/ethernet/freescale/enetc/Makefile b/drivers/net/ethernet/freescale/enetc/Makefile index 737c32f83ea5..8f4d8e9c37a0 100644 --- a/drivers/net/ethernet/freescale/enetc/Makefile +++ b/drivers/net/ethernet/freescale/enetc/Makefile @@ -4,7 +4,7 @@ obj-$(CONFIG_FSL_ENETC_CORE) += fsl-enetc-core.o fsl-enetc-core-y := enetc.o enetc_cbdr.o enetc_ethtool.o obj-$(CONFIG_FSL_ENETC) += fsl-enetc.o -fsl-enetc-y := enetc_pf.o +fsl-enetc-y := enetc_pf.o enetc_pf_common.o fsl-enetc-$(CONFIG_PCI_IOV) += enetc_msg.o fsl-enetc-$(CONFIG_FSL_ENETC_QOS) += enetc_qos.o diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index 8f6b0bf48139..3cdd149056f9 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -2,11 +2,8 @@ /* Copyright 2017-2019 NXP */ #include -#include #include -#include #include -#include #include #include #include "enetc_ierb.h" @@ -14,7 +11,7 @@ #define ENETC_DRV_NAME_STR "ENETC PF driver" -static void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr) +void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr) { u32 upper = __raw_readl(hw->port + ENETC_PSIPMAR0(si)); u16 lower = __raw_readw(hw->port + ENETC_PSIPMAR1(si)); @@ -23,8 +20,8 @@ static void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr) put_unaligned_le16(lower, addr + 4); } -static void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, - const u8 *addr) +void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, + const u8 *addr) { u32 upper = get_unaligned_le32(addr); u16 lower = get_unaligned_le16(addr + 4); @@ -33,20 +30,6 @@ static void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, __raw_writew(lower, hw->port + ENETC_PSIPMAR1(si)); } -static int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr) -{ - struct enetc_ndev_priv *priv = netdev_priv(ndev); - struct sockaddr *saddr = addr; - - if (!is_valid_ether_addr(saddr->sa_data)) - return -EADDRNOTAVAIL; - - eth_hw_addr_set(ndev, saddr->sa_data); - enetc_pf_set_primary_mac_addr(&priv->si->hw, 0, saddr->sa_data); - - return 0; -} - static void enetc_set_vlan_promisc(struct enetc_hw *hw, char si_map) { u32 val = enetc_port_rd(hw, ENETC_PSIPVMR); @@ -393,56 +376,6 @@ static int enetc_pf_set_vf_spoofchk(struct net_device *ndev, int vf, bool en) return 0; } -static int enetc_setup_mac_address(struct device_node *np, struct enetc_pf *pf, - int si) -{ - struct device *dev = &pf->si->pdev->dev; - struct enetc_hw *hw = &pf->si->hw; - u8 mac_addr[ETH_ALEN] = { 0 }; - int err; - - /* (1) try to get the MAC address from the device tree */ - if (np) { - err = of_get_mac_address(np, mac_addr); - if (err == -EPROBE_DEFER) - return err; - } - - /* (2) bootloader supplied MAC address */ - if (is_zero_ether_addr(mac_addr)) - enetc_pf_get_primary_mac_addr(hw, si, mac_addr); - - /* (3) choose a random one */ - if (is_zero_ether_addr(mac_addr)) { - eth_random_addr(mac_addr); - dev_info(dev, "no MAC address specified for SI%d, using %pM\n", - si, mac_addr); - } - - enetc_pf_set_primary_mac_addr(hw, si, mac_addr); - - return 0; -} - -static int enetc_setup_mac_addresses(struct device_node *np, - struct enetc_pf *pf) -{ - int err, i; - - /* The PF might take its MAC from the device tree */ - err = enetc_setup_mac_address(np, pf, 0); - if (err) - return err; - - for (i = 0; i < pf->total_vfs; i++) { - err = enetc_setup_mac_address(NULL, pf, i + 1); - if (err) - return err; - } - - return 0; -} - static void enetc_port_assign_rfs_entries(struct enetc_si *si) { struct enetc_pf *pf = enetc_si_priv(si); @@ -775,187 +708,6 @@ static const struct net_device_ops enetc_ndev_ops = { .ndo_xdp_xmit = enetc_xdp_xmit, }; -static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, - const struct net_device_ops *ndev_ops) -{ - struct enetc_ndev_priv *priv = netdev_priv(ndev); - - SET_NETDEV_DEV(ndev, &si->pdev->dev); - priv->ndev = ndev; - priv->si = si; - priv->dev = &si->pdev->dev; - si->ndev = ndev; - - priv->msg_enable = (NETIF_MSG_WOL << 1) - 1; - ndev->netdev_ops = ndev_ops; - enetc_set_ethtool_ops(ndev); - ndev->watchdog_timeo = 5 * HZ; - ndev->max_mtu = ENETC_MAX_MTU; - - ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | - NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK | - NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; - ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM | - NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; - ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM | - NETIF_F_TSO | NETIF_F_TSO6; - - if (si->num_rss) - ndev->hw_features |= NETIF_F_RXHASH; - - ndev->priv_flags |= IFF_UNICAST_FLT; - ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | - NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | - NETDEV_XDP_ACT_NDO_XMIT_SG; - - if (si->hw_features & ENETC_SI_F_PSFP && !enetc_psfp_enable(priv)) { - priv->active_offloads |= ENETC_F_QCI; - ndev->features |= NETIF_F_HW_TC; - ndev->hw_features |= NETIF_F_HW_TC; - } - - /* pick up primary MAC address from SI */ - enetc_load_primary_mac_addr(&si->hw, ndev); -} - -static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np) -{ - struct device *dev = &pf->si->pdev->dev; - struct enetc_mdio_priv *mdio_priv; - struct mii_bus *bus; - int err; - - bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv)); - if (!bus) - return -ENOMEM; - - bus->name = "Freescale ENETC MDIO Bus"; - bus->read = enetc_mdio_read_c22; - bus->write = enetc_mdio_write_c22; - bus->read_c45 = enetc_mdio_read_c45; - bus->write_c45 = enetc_mdio_write_c45; - bus->parent = dev; - mdio_priv = bus->priv; - mdio_priv->hw = &pf->si->hw; - mdio_priv->mdio_base = ENETC_EMDIO_BASE; - snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev)); - - err = of_mdiobus_register(bus, np); - if (err) - return dev_err_probe(dev, err, "cannot register MDIO bus\n"); - - pf->mdio = bus; - - return 0; -} - -static void enetc_mdio_remove(struct enetc_pf *pf) -{ - if (pf->mdio) - mdiobus_unregister(pf->mdio); -} - -static int enetc_imdio_create(struct enetc_pf *pf) -{ - struct device *dev = &pf->si->pdev->dev; - struct enetc_mdio_priv *mdio_priv; - struct phylink_pcs *phylink_pcs; - struct mii_bus *bus; - int err; - - bus = mdiobus_alloc_size(sizeof(*mdio_priv)); - if (!bus) - return -ENOMEM; - - bus->name = "Freescale ENETC internal MDIO Bus"; - bus->read = enetc_mdio_read_c22; - bus->write = enetc_mdio_write_c22; - bus->read_c45 = enetc_mdio_read_c45; - bus->write_c45 = enetc_mdio_write_c45; - bus->parent = dev; - bus->phy_mask = ~0; - mdio_priv = bus->priv; - mdio_priv->hw = &pf->si->hw; - mdio_priv->mdio_base = ENETC_PM_IMDIO_BASE; - snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev)); - - err = mdiobus_register(bus); - if (err) { - dev_err(dev, "cannot register internal MDIO bus (%d)\n", err); - goto free_mdio_bus; - } - - phylink_pcs = lynx_pcs_create_mdiodev(bus, 0); - if (IS_ERR(phylink_pcs)) { - err = PTR_ERR(phylink_pcs); - dev_err(dev, "cannot create lynx pcs (%d)\n", err); - goto unregister_mdiobus; - } - - pf->imdio = bus; - pf->pcs = phylink_pcs; - - return 0; - -unregister_mdiobus: - mdiobus_unregister(bus); -free_mdio_bus: - mdiobus_free(bus); - return err; -} - -static void enetc_imdio_remove(struct enetc_pf *pf) -{ - if (pf->pcs) - lynx_pcs_destroy(pf->pcs); - if (pf->imdio) { - mdiobus_unregister(pf->imdio); - mdiobus_free(pf->imdio); - } -} - -static bool enetc_port_has_pcs(struct enetc_pf *pf) -{ - return (pf->if_mode == PHY_INTERFACE_MODE_SGMII || - pf->if_mode == PHY_INTERFACE_MODE_1000BASEX || - 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_node *node) -{ - struct device_node *mdio_np; - int err; - - mdio_np = of_get_child_by_name(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 struct phylink_pcs * enetc_pl_mac_select_pcs(struct phylink_config *config, phy_interface_t iface) { @@ -1101,47 +853,6 @@ static const struct phylink_mac_ops enetc_mac_phylink_ops = { .mac_link_down = enetc_pl_mac_link_down, }; -static int enetc_phylink_create(struct enetc_ndev_priv *priv, - struct device_node *node) -{ - struct enetc_pf *pf = enetc_si_priv(priv->si); - struct phylink *phylink; - int err; - - pf->phylink_config.dev = &priv->ndev->dev; - pf->phylink_config.type = PHYLINK_NETDEV; - pf->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | - MAC_10 | MAC_100 | MAC_1000 | MAC_2500FD; - - __set_bit(PHY_INTERFACE_MODE_INTERNAL, - pf->phylink_config.supported_interfaces); - __set_bit(PHY_INTERFACE_MODE_SGMII, - pf->phylink_config.supported_interfaces); - __set_bit(PHY_INTERFACE_MODE_1000BASEX, - pf->phylink_config.supported_interfaces); - __set_bit(PHY_INTERFACE_MODE_2500BASEX, - pf->phylink_config.supported_interfaces); - __set_bit(PHY_INTERFACE_MODE_USXGMII, - pf->phylink_config.supported_interfaces); - phy_interface_set_rgmii(pf->phylink_config.supported_interfaces); - - phylink = phylink_create(&pf->phylink_config, of_fwnode_handle(node), - pf->if_mode, &enetc_mac_phylink_ops); - if (IS_ERR(phylink)) { - err = PTR_ERR(phylink); - return err; - } - - priv->phylink = phylink; - - return 0; -} - -static void enetc_phylink_destroy(struct enetc_ndev_priv *priv) -{ - phylink_destroy(priv->phylink); -} - /* Initialize the entire shared memory for the flow steering entries * of this port (PF + VFs) */ @@ -1338,7 +1049,7 @@ static int enetc_pf_probe(struct pci_dev *pdev, if (err) goto err_mdiobus_create; - err = enetc_phylink_create(priv, node); + err = enetc_phylink_create(priv, node, &enetc_mac_phylink_ops); if (err) goto err_phylink_create; diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h index c26bd66e4597..92a26b09cf57 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h @@ -58,3 +58,16 @@ struct enetc_pf { int enetc_msg_psi_init(struct enetc_pf *pf); void enetc_msg_psi_free(struct enetc_pf *pf); void enetc_msg_handle_rxmsg(struct enetc_pf *pf, int mbox_id, u16 *status); + +void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr); +void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, + const u8 *addr); +int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr); +int enetc_setup_mac_addresses(struct device_node *np, struct enetc_pf *pf); +void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, + const struct net_device_ops *ndev_ops); +int enetc_mdiobus_create(struct enetc_pf *pf, struct device_node *node); +void enetc_mdiobus_destroy(struct enetc_pf *pf); +int enetc_phylink_create(struct enetc_ndev_priv *priv, struct device_node *node, + const struct phylink_mac_ops *ops); +void enetc_phylink_destroy(struct enetc_ndev_priv *priv); diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c new file mode 100644 index 000000000000..bce81a4f6f88 --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c @@ -0,0 +1,295 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2024 NXP */ + +#include +#include +#include +#include + +#include "enetc_pf.h" + +int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct sockaddr *saddr = addr; + + if (!is_valid_ether_addr(saddr->sa_data)) + return -EADDRNOTAVAIL; + + eth_hw_addr_set(ndev, saddr->sa_data); + enetc_pf_set_primary_mac_addr(&priv->si->hw, 0, saddr->sa_data); + + return 0; +} + +static int enetc_setup_mac_address(struct device_node *np, struct enetc_pf *pf, + int si) +{ + struct device *dev = &pf->si->pdev->dev; + struct enetc_hw *hw = &pf->si->hw; + u8 mac_addr[ETH_ALEN] = { 0 }; + int err; + + /* (1) try to get the MAC address from the device tree */ + if (np) { + err = of_get_mac_address(np, mac_addr); + if (err == -EPROBE_DEFER) + return err; + } + + /* (2) bootloader supplied MAC address */ + if (is_zero_ether_addr(mac_addr)) + enetc_pf_get_primary_mac_addr(hw, si, mac_addr); + + /* (3) choose a random one */ + if (is_zero_ether_addr(mac_addr)) { + eth_random_addr(mac_addr); + dev_info(dev, "no MAC address specified for SI%d, using %pM\n", + si, mac_addr); + } + + enetc_pf_set_primary_mac_addr(hw, si, mac_addr); + + return 0; +} + +int enetc_setup_mac_addresses(struct device_node *np, struct enetc_pf *pf) +{ + int err, i; + + /* The PF might take its MAC from the device tree */ + err = enetc_setup_mac_address(np, pf, 0); + if (err) + return err; + + for (i = 0; i < pf->total_vfs; i++) { + err = enetc_setup_mac_address(NULL, pf, i + 1); + if (err) + return err; + } + + return 0; +} + +void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, + const struct net_device_ops *ndev_ops) +{ + struct enetc_ndev_priv *priv = netdev_priv(ndev); + + SET_NETDEV_DEV(ndev, &si->pdev->dev); + priv->ndev = ndev; + priv->si = si; + priv->dev = &si->pdev->dev; + si->ndev = ndev; + + priv->msg_enable = (NETIF_MSG_WOL << 1) - 1; + ndev->netdev_ops = ndev_ops; + enetc_set_ethtool_ops(ndev); + ndev->watchdog_timeo = 5 * HZ; + ndev->max_mtu = ENETC_MAX_MTU; + + ndev->hw_features = NETIF_F_SG | NETIF_F_RXCSUM | + NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK | + NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; + ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | NETIF_F_RXCSUM | + NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_CTAG_RX | + NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; + ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM | + NETIF_F_TSO | NETIF_F_TSO6; + + if (si->num_rss) + ndev->hw_features |= NETIF_F_RXHASH; + + ndev->priv_flags |= IFF_UNICAST_FLT; + ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | + NETDEV_XDP_ACT_NDO_XMIT_SG; + + if (si->hw_features & ENETC_SI_F_PSFP && !enetc_psfp_enable(priv)) { + priv->active_offloads |= ENETC_F_QCI; + ndev->features |= NETIF_F_HW_TC; + ndev->hw_features |= NETIF_F_HW_TC; + } + + /* pick up primary MAC address from SI */ + enetc_load_primary_mac_addr(&si->hw, ndev); +} + +static int enetc_mdio_probe(struct enetc_pf *pf, struct device_node *np) +{ + struct device *dev = &pf->si->pdev->dev; + struct enetc_mdio_priv *mdio_priv; + struct mii_bus *bus; + int err; + + bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv)); + if (!bus) + return -ENOMEM; + + bus->name = "Freescale ENETC MDIO Bus"; + bus->read = enetc_mdio_read_c22; + bus->write = enetc_mdio_write_c22; + bus->read_c45 = enetc_mdio_read_c45; + bus->write_c45 = enetc_mdio_write_c45; + bus->parent = dev; + mdio_priv = bus->priv; + mdio_priv->hw = &pf->si->hw; + mdio_priv->mdio_base = ENETC_EMDIO_BASE; + snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev)); + + err = of_mdiobus_register(bus, np); + if (err) + return dev_err_probe(dev, err, "cannot register MDIO bus\n"); + + pf->mdio = bus; + + return 0; +} + +static void enetc_mdio_remove(struct enetc_pf *pf) +{ + if (pf->mdio) + mdiobus_unregister(pf->mdio); +} + +static int enetc_imdio_create(struct enetc_pf *pf) +{ + struct device *dev = &pf->si->pdev->dev; + struct enetc_mdio_priv *mdio_priv; + struct phylink_pcs *phylink_pcs; + struct mii_bus *bus; + int err; + + bus = mdiobus_alloc_size(sizeof(*mdio_priv)); + if (!bus) + return -ENOMEM; + + bus->name = "Freescale ENETC internal MDIO Bus"; + bus->read = enetc_mdio_read_c22; + bus->write = enetc_mdio_write_c22; + bus->read_c45 = enetc_mdio_read_c45; + bus->write_c45 = enetc_mdio_write_c45; + bus->parent = dev; + bus->phy_mask = ~0; + mdio_priv = bus->priv; + mdio_priv->hw = &pf->si->hw; + mdio_priv->mdio_base = ENETC_PM_IMDIO_BASE; + snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev)); + + err = mdiobus_register(bus); + if (err) { + dev_err(dev, "cannot register internal MDIO bus (%d)\n", err); + goto free_mdio_bus; + } + + phylink_pcs = lynx_pcs_create_mdiodev(bus, 0); + if (IS_ERR(phylink_pcs)) { + err = PTR_ERR(phylink_pcs); + dev_err(dev, "cannot create lynx pcs (%d)\n", err); + goto unregister_mdiobus; + } + + pf->imdio = bus; + pf->pcs = phylink_pcs; + + return 0; + +unregister_mdiobus: + mdiobus_unregister(bus); +free_mdio_bus: + mdiobus_free(bus); + return err; +} + +static void enetc_imdio_remove(struct enetc_pf *pf) +{ + if (pf->pcs) + lynx_pcs_destroy(pf->pcs); + + if (pf->imdio) { + mdiobus_unregister(pf->imdio); + mdiobus_free(pf->imdio); + } +} + +static bool enetc_port_has_pcs(struct enetc_pf *pf) +{ + return (pf->if_mode == PHY_INTERFACE_MODE_SGMII || + pf->if_mode == PHY_INTERFACE_MODE_1000BASEX || + pf->if_mode == PHY_INTERFACE_MODE_2500BASEX || + pf->if_mode == PHY_INTERFACE_MODE_USXGMII); +} + +int enetc_mdiobus_create(struct enetc_pf *pf, struct device_node *node) +{ + struct device_node *mdio_np; + int err; + + mdio_np = of_get_child_by_name(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; +} + +void enetc_mdiobus_destroy(struct enetc_pf *pf) +{ + enetc_mdio_remove(pf); + enetc_imdio_remove(pf); +} + +int enetc_phylink_create(struct enetc_ndev_priv *priv, struct device_node *node, + const struct phylink_mac_ops *ops) +{ + struct enetc_pf *pf = enetc_si_priv(priv->si); + struct phylink *phylink; + int err; + + pf->phylink_config.dev = &priv->ndev->dev; + pf->phylink_config.type = PHYLINK_NETDEV; + pf->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | + MAC_10 | MAC_100 | MAC_1000 | MAC_2500FD; + + __set_bit(PHY_INTERFACE_MODE_INTERNAL, + pf->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_SGMII, + pf->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_1000BASEX, + pf->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_2500BASEX, + pf->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_USXGMII, + pf->phylink_config.supported_interfaces); + phy_interface_set_rgmii(pf->phylink_config.supported_interfaces); + + phylink = phylink_create(&pf->phylink_config, of_fwnode_handle(node), + pf->if_mode, ops); + if (IS_ERR(phylink)) { + err = PTR_ERR(phylink); + return err; + } + + priv->phylink = phylink; + + return 0; +} + +void enetc_phylink_destroy(struct enetc_ndev_priv *priv) +{ + phylink_destroy(priv->phylink); +}