From mboxrd@z Thu Jan 1 00:00:00 1970 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 3003AC7EE24 for ; Thu, 1 Jun 2023 03:15:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230462AbjFADPr (ORCPT ); Wed, 31 May 2023 23:15:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230169AbjFADPf (ORCPT ); Wed, 31 May 2023 23:15:35 -0400 X-Greylist: delayed 202 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 31 May 2023 20:15:32 PDT Received: from smtpbg154.qq.com (smtpbg154.qq.com [15.184.224.54]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 82B40139; Wed, 31 May 2023 20:15:30 -0700 (PDT) X-QQ-mid: bizesmtp86t1685588686tkwlmz9f Received: from wxdbg.localdomain.com ( [183.159.96.128]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 01 Jun 2023 11:04:42 +0800 (CST) X-QQ-SSF: 01400000000000J0Z000000A0000000 X-QQ-FEAT: QityeSR92A2OLiW4LP6Sv33H7++QruIBfTkOx16mPbZ9AUPF+Mx8uo+9hn70g irignGaBIu5QTvbRHcHXa22YdhPEVcdG9gc8cqL+M5nZo1tI9O65p3eZMdQ/3pym3vWDR9w yTluur+a2ZOVWp2m2XidX6P0YZyibS61eiGYAiFlqKmis6R5V9ogXnpB2wf633N6grz6A8n uy77J22nqQx9Gq6SS0YEFAoxhx/QUbuPUBTHucHLwEFAayGfojuepRgTqRdxX30ZtZyxIaR kRZXdDYsOgmDc5JeIJVWO24YClT/6hBExPSsoLpXmvPlwVDr1jO96b3fLnRmSosMugHbov/ 1IyLd5lqHHBNpF/1248GOcKuH8tshQgbMPPh6VXFXZgJI+Dy7vKwbmqHVDAmzTn9lbEurjV gop7rbTjFtOJYHoDFQebXU+/aXPs+r7h X-QQ-GoodBg: 2 X-BIZMAIL-ID: 14059225962376236563 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, Jose.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: [PATCH net-next v10 9/9] net: txgbe: Support phylink MAC layer Date: Thu, 1 Jun 2023 11:01:40 +0800 Message-Id: <20230601030140.687493-10-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230601030140.687493-1-jiawenwu@trustnetic.com> References: <20230601030140.687493-1-jiawenwu@trustnetic.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:trustnetic.com:qybglogicsvrgz:qybglogicsvrgz5a-1 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Add phylink support to Wangxun 10Gb Ethernet controller for the 10GBASE-R interface. Signed-off-by: Jiawen Wu --- .../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 + 4 files changed, 154 insertions(+), 15 deletions(-) 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 ded04e9e136f..73764555af1a 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; wx_control_hw(wx, true); wx_configure_vectors(wx); @@ -213,24 +215,17 @@ static void txgbe_up_complete(struct wx *wx) smp_mb__before_atomic(); wx_napi_enable_all(wx); + txgbe = netdev_to_txgbe(netdev); + 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 +259,6 @@ 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 +289,11 @@ static void txgbe_disable_device(struct wx *wx) static void txgbe_down(struct wx *wx) { + struct txgbe *txgbe = netdev_to_txgbe(wx->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 f4ec27d45a2d..f68c4452f438 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -11,8 +11,10 @@ #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" @@ -153,6 +155,95 @@ 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); @@ -316,6 +407,9 @@ static void txgbe_irq_handler(struct irq_desc *desc) unsigned long gpioirq; struct gpio_chip *gc; unsigned long flags; + u32 eicr; + + eicr = wx_misc_isb(wx, WX_ISB_MISC); chained_irq_enter(chip, desc); @@ -337,6 +431,12 @@ 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)) { + u32 reg = rd32(wx, TXGBE_CFG_PORT_ST); + + phylink_mac_change(txgbe->phylink, !!(reg & TXGBE_CFG_PORT_ST_LINK_UP)); + } + /* unmask interrupt */ wx_intr_enable(wx, TXGBE_INTR_MISC(wx)); } @@ -511,16 +611,22 @@ 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); @@ -542,6 +648,8 @@ 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: @@ -556,6 +664,7 @@ 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 d1f62f62c28c..e9e5c5186f74 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -77,6 +77,10 @@ TXGBE_PX_MISC_ETH_AN | 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 @@ -176,6 +180,7 @@ struct txgbe { struct wx *wx; struct txgbe_nodes nodes; struct dw_xpcs *xpcs; + struct phylink *phylink; struct platform_device *sfp_dev; struct platform_device *i2c_dev; struct clk_lookup *clock; -- 2.27.0