From patchwork Wed Apr 26 07:14:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 677605 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 117B2C77B60 for ; Wed, 26 Apr 2023 07:19:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239986AbjDZHTH (ORCPT ); Wed, 26 Apr 2023 03:19:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57916 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240025AbjDZHSs (ORCPT ); Wed, 26 Apr 2023 03:18:48 -0400 Received: from smtpbg153.qq.com (smtpbg153.qq.com [13.245.218.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FAFD40F4; Wed, 26 Apr 2023 00:17:53 -0700 (PDT) X-QQ-mid: bizesmtp63t1682493396t1i57ydq Received: from wxdbg.localdomain.com ( [183.129.236.74]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 26 Apr 2023 15:16:34 +0800 (CST) X-QQ-SSF: 01400000000000I0Z000000A0000000 X-QQ-FEAT: 7L1V3dHhUFOG+fbANn/jygjn4JThUGLq7qHBiKlf8QQIJrGNIsvaIxUnGMO7O BzZMoQdUUVlWizvvqS4NwupgSV9ogR7g53oQ2d9jaiCOELXPTprQUKdVAKHNXUOgQPptBvE RnLDyz0FEcJ+8I3luNVNonHmSZuiZKjSNUlD9akh3p0Nd4X4o3H7ZGlrsI2e/3lG0kQTBC4 TahHFgbBLT0q0UuTSSLAd0xwpfaa4cd24oUkoYynkse1Lz5PbG5FwGfDT1C8jVb4D7v8lBq p3VDHD48Kq1aN4foxs9awv1Pc+AUB/3TAT2XnzQRKw7/FB9spBikxOU4nCBb5uAz2Y+kw8W /7je8cB4icstVPJf2QJSfxx4Cj1j2sx5N4ABdB82szroEE8UXMQ5lhItxHCcF1dwKBDucUp xn7y6qz+J9CeVFE0qBoZdLtvLsGTp/AM X-QQ-GoodBg: 2 X-BIZMAIL-ID: 15994322969020987853 From: Jiawen Wu To: netdev@vger.kernel.org, jarkko.nikula@linux.intel.com, andriy.shevchenko@linux.intel.com, mika.westerberg@linux.intel.com, jsd@semihalf.com, ose.Abreu@synopsys.com, andrew@lunn.ch, hkallweit1@gmail.com, linux@armlinux.org.uk Cc: linux-i2c@vger.kernel.org, linux-gpio@vger.kernel.org, mengyuanlou@net-swift.com, Jiawen Wu Subject: [RFC PATCH net-next v5 9/9] net: txgbe: Support phylink MAC layer Date: Wed, 26 Apr 2023 15:14:34 +0800 Message-Id: <20230426071434.452717-10-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230426071434.452717-1-jiawenwu@trustnetic.com> References: <20230426071434.452717-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybglogicsvr:qybglogicsvr5 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add phylink support to Wangxun 10Gb Ethernet controller for the 10GBASE-R interface. Signed-off-by: Jiawen Wu --- drivers/net/ethernet/wangxun/Kconfig | 1 + .../ethernet/wangxun/txgbe/txgbe_ethtool.c | 28 +++++ .../net/ethernet/wangxun/txgbe/txgbe_main.c | 23 ++-- .../net/ethernet/wangxun/txgbe/txgbe_phy.c | 113 +++++++++++++++++- .../net/ethernet/wangxun/txgbe/txgbe_type.h | 5 + 5 files changed, 154 insertions(+), 16 deletions(-) diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig index 24338b754221..c11ce10435cc 100644 --- a/drivers/net/ethernet/wangxun/Kconfig +++ b/drivers/net/ethernet/wangxun/Kconfig @@ -45,6 +45,7 @@ config TXGBE select GPIOLIB select COMMON_CLK select PCS_XPCS + select PHYLINK select LIBWX select SFP help diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c index d914e9a05404..859da112586a 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c @@ -6,11 +6,39 @@ #include #include "../libwx/wx_ethtool.h" +#include "../libwx/wx_type.h" +#include "txgbe_type.h" #include "txgbe_ethtool.h" +static int txgbe_nway_reset(struct net_device *netdev) +{ + struct txgbe *txgbe = netdev_to_txgbe(netdev); + + return phylink_ethtool_nway_reset(txgbe->phylink); +} + +static int txgbe_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct txgbe *txgbe = netdev_to_txgbe(netdev); + + return phylink_ethtool_ksettings_get(txgbe->phylink, cmd); +} + +static int txgbe_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) +{ + struct txgbe *txgbe = netdev_to_txgbe(netdev); + + return phylink_ethtool_ksettings_set(txgbe->phylink, cmd); +} + static const struct ethtool_ops txgbe_ethtool_ops = { .get_drvinfo = wx_get_drvinfo, + .nway_reset = txgbe_nway_reset, .get_link = ethtool_op_get_link, + .get_link_ksettings = txgbe_get_link_ksettings, + .set_link_ksettings = txgbe_set_link_ksettings, }; void txgbe_set_ethtool_ops(struct net_device *netdev) diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index 608fbec55427..ef54adb865bd 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include @@ -204,7 +205,8 @@ static int txgbe_request_irq(struct wx *wx) static void txgbe_up_complete(struct wx *wx) { - u32 reg; + struct net_device *netdev = wx->netdev; + struct txgbe *txgbe = netdev_to_txgbe(netdev); wx_control_hw(wx, true); wx_configure_vectors(wx); @@ -213,24 +215,16 @@ static void txgbe_up_complete(struct wx *wx) smp_mb__before_atomic(); wx_napi_enable_all(wx); + phylink_start(txgbe->phylink); + /* clear any pending interrupts, may auto mask */ rd32(wx, WX_PX_IC(0)); rd32(wx, WX_PX_IC(1)); rd32(wx, WX_PX_MISC_IC); txgbe_irq_enable(wx, true); - /* Configure MAC Rx and Tx when link is up */ - reg = rd32(wx, WX_MAC_RX_CFG); - wr32(wx, WX_MAC_RX_CFG, reg); - wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR); - reg = rd32(wx, WX_MAC_WDG_TIMEOUT); - wr32(wx, WX_MAC_WDG_TIMEOUT, reg); - reg = rd32(wx, WX_MAC_TX_CFG); - wr32(wx, WX_MAC_TX_CFG, (reg & ~WX_MAC_TX_CFG_SPEED_MASK) | WX_MAC_TX_CFG_SPEED_10G); - /* enable transmits */ - netif_tx_start_all_queues(wx->netdev); - netif_carrier_on(wx->netdev); + netif_tx_start_all_queues(netdev); } static void txgbe_reset(struct wx *wx) @@ -264,7 +258,6 @@ static void txgbe_disable_device(struct wx *wx) wx_disable_rx_queue(wx, wx->rx_ring[i]); netif_tx_stop_all_queues(netdev); - netif_carrier_off(netdev); netif_tx_disable(netdev); wx_irq_disable(wx); @@ -295,8 +288,12 @@ static void txgbe_disable_device(struct wx *wx) static void txgbe_down(struct wx *wx) { + struct net_device *netdev = wx->netdev; + struct txgbe *txgbe = netdev_to_txgbe(netdev); + txgbe_disable_device(wx); txgbe_reset(wx); + phylink_stop(txgbe->phylink); wx_clean_all_tx_rings(wx); wx_clean_all_rx_rings(wx); diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c index 39fe09e3a82c..b10edefccec8 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -9,11 +9,13 @@ #include #include #include +#include #include #include #include #include "../libwx/wx_type.h" +#include "../libwx/wx_lib.h" #include "../libwx/wx_hw.h" #include "txgbe_type.h" #include "txgbe_phy.h" @@ -155,6 +157,95 @@ static int txgbe_mdio_pcs_init(struct txgbe *txgbe) return 0; } +static struct phylink_pcs *txgbe_phylink_mac_select(struct phylink_config *config, + phy_interface_t interface) +{ + struct txgbe *txgbe = netdev_to_txgbe(to_net_dev(config->dev)); + + return &txgbe->xpcs->pcs; +} + +static void txgbe_mac_config(struct phylink_config *config, unsigned int mode, + const struct phylink_link_state *state) +{ +} + +static void txgbe_mac_link_down(struct phylink_config *config, + unsigned int mode, phy_interface_t interface) +{ + struct wx *wx = netdev_priv(to_net_dev(config->dev)); + + wr32m(wx, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0); +} + +static void txgbe_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, + bool tx_pause, bool rx_pause) +{ + struct wx *wx = netdev_priv(to_net_dev(config->dev)); + u32 txcfg, wdg; + + txcfg = rd32(wx, WX_MAC_TX_CFG); + txcfg &= ~WX_MAC_TX_CFG_SPEED_MASK; + + switch (speed) { + case SPEED_10000: + txcfg |= WX_MAC_TX_CFG_SPEED_10G; + break; + case SPEED_1000: + case SPEED_100: + case SPEED_10: + txcfg |= WX_MAC_TX_CFG_SPEED_1G; + break; + default: + break; + } + + wr32(wx, WX_MAC_TX_CFG, txcfg | WX_MAC_TX_CFG_TE); + + /* Re configure MAC Rx */ + wr32m(wx, WX_MAC_RX_CFG, WX_MAC_RX_CFG_RE, WX_MAC_RX_CFG_RE); + wr32(wx, WX_MAC_PKT_FLT, WX_MAC_PKT_FLT_PR); + wdg = rd32(wx, WX_MAC_WDG_TIMEOUT); + wr32(wx, WX_MAC_WDG_TIMEOUT, wdg); +} + +static const struct phylink_mac_ops txgbe_mac_ops = { + .mac_select_pcs = txgbe_phylink_mac_select, + .mac_config = txgbe_mac_config, + .mac_link_down = txgbe_mac_link_down, + .mac_link_up = txgbe_mac_link_up, +}; + +static int txgbe_phylink_init(struct txgbe *txgbe) +{ + struct phylink_config *config; + struct fwnode_handle *fwnode; + struct wx *wx = txgbe->wx; + phy_interface_t phy_mode; + struct phylink *phylink; + + config = devm_kzalloc(&wx->pdev->dev, sizeof(*config), GFP_KERNEL); + if (!config) + return -ENOMEM; + + config->dev = &wx->netdev->dev; + config->type = PHYLINK_NETDEV; + config->mac_capabilities = MAC_10000FD | MAC_1000FD | MAC_SYM_PAUSE | MAC_ASYM_PAUSE; + phy_mode = PHY_INTERFACE_MODE_10GBASER; + __set_bit(PHY_INTERFACE_MODE_10GBASER, config->supported_interfaces); + fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_PHYLINK]); + phylink = phylink_create(config, fwnode, phy_mode, &txgbe_mac_ops); + if (IS_ERR(phylink)) + return PTR_ERR(phylink); + + txgbe->phylink = phylink; + + return 0; +} + static int txgbe_gpio_get(struct gpio_chip *chip, unsigned int offset) { struct wx *wx = gpiochip_get_data(chip); @@ -301,7 +392,9 @@ static void txgbe_irq_handler(struct irq_desc *desc) irq_hw_number_t hwirq; unsigned long gpioirq; struct gpio_chip *gc; - u32 gpio; + u32 gpio, eicr, reg; + + eicr = wx_misc_isb(wx, WX_ISB_MISC); chained_irq_enter(chip, desc); @@ -318,6 +411,11 @@ static void txgbe_irq_handler(struct irq_desc *desc) chained_irq_exit(chip, desc); + if (eicr & (TXGBE_PX_MISC_ETH_LK | TXGBE_PX_MISC_ETH_LKDN)) { + reg = rd32(wx, TXGBE_CFG_PORT_ST); + phylink_mac_change(txgbe->phylink, !!(reg & TXGBE_CFG_PORT_ST_LINK_UP)); + } + /* unmask interrupt */ if (netif_running(wx->netdev)) wx_intr_enable(wx, TXGBE_INTR_MISC(wx)); @@ -463,16 +561,22 @@ int txgbe_init_phy(struct txgbe *txgbe) goto err_unregister_swnode; } + ret = txgbe_phylink_init(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to init phylink\n"); + goto err_destroy_xpcs; + } + ret = txgbe_gpio_init(txgbe); if (ret) { wx_err(txgbe->wx, "failed to init gpio\n"); - goto err_destroy_xpcs; + goto err_destroy_phylink; } ret = txgbe_clock_register(txgbe); if (ret) { wx_err(txgbe->wx, "failed to register clock: %d\n", ret); - goto err_destroy_xpcs; + goto err_destroy_phylink; } ret = txgbe_i2c_register(txgbe); @@ -494,6 +598,8 @@ int txgbe_init_phy(struct txgbe *txgbe) err_unregister_clk: clkdev_drop(txgbe->clock); clk_unregister(txgbe->clk); +err_destroy_phylink: + phylink_destroy(txgbe->phylink); err_destroy_xpcs: xpcs_destroy(txgbe->xpcs); err_unregister_swnode: @@ -508,6 +614,7 @@ void txgbe_remove_phy(struct txgbe *txgbe) platform_device_unregister(txgbe->i2c_dev); clkdev_drop(txgbe->clock); clk_unregister(txgbe->clk); + phylink_destroy(txgbe->phylink); xpcs_destroy(txgbe->xpcs); software_node_unregister_node_group(txgbe->nodes.group); } diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index 75b9c7ae3c21..a889f340b14d 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -80,6 +80,10 @@ TXGBE_PX_MISC_INT_ERR | \ TXGBE_PX_MISC_GPIO) +/* Port cfg registers */ +#define TXGBE_CFG_PORT_ST 0x14404 +#define TXGBE_CFG_PORT_ST_LINK_UP BIT(0) + /* I2C registers */ #define TXGBE_I2C_BASE 0x14900 @@ -180,6 +184,7 @@ struct txgbe { struct txgbe_nodes nodes; struct mdio_device *mdiodev; struct dw_xpcs *xpcs; + struct phylink *phylink; struct platform_device *sfp_dev; struct platform_device *i2c_dev; struct clk_lookup *clock;