From patchwork Tue Apr 11 09:27:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jiawen Wu X-Patchwork-Id: 673004 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 1D666C7619A for ; Tue, 11 Apr 2023 09:29:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229922AbjDKJ3X (ORCPT ); Tue, 11 Apr 2023 05:29:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47814 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229775AbjDKJ2t (ORCPT ); Tue, 11 Apr 2023 05:28:49 -0400 Received: from smtpbg151.qq.com (smtpbg151.qq.com [18.169.211.239]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F2AB5E44; Tue, 11 Apr 2023 02:28:45 -0700 (PDT) X-QQ-mid: bizesmtp91t1681205310tx0e5001 Received: from wxdbg.localdomain.com ( [183.129.236.74]) by bizesmtp.qq.com (ESMTP) with id ; Tue, 11 Apr 2023 17:28:29 +0800 (CST) X-QQ-SSF: 01400000000000H0Z000000A0000000 X-QQ-FEAT: fs34Pe/+C2QCRbWdmZLGnSZ5LsQa3Q5fOAQ3B8m9qsXuZW7IG2XNFi71fPPvM 7G5tsoffnXjT/MO+u5YZ9R7gBEe5CakXr1cWTs2y0flDQKFgp6B8vDb8ijPMfcD/XrbCHJL YZMVnkYcaNSYpfBm4XdIsstRiY2GYZ+Tek7Ty0of4BySFkJl7KJJVEA4tyIcRsDD0nSYVOL b1jmsILrW+IvVzUBmkuVlCrahq2Q80z5DovOHf3HA8FVI20P5duOOgEMo+ltQ+CX5+32TKc Nlw6g8nH9MLJGcaJH7TY+az0YHkR3FSI4alODXh6kM5CvDIhSWOTPxxVHZWryWrcZxBB15U wz0eZnsp4XTR/MsrZhB2dg73K0Ltyyy0ptVD7HA76rgYEoXVzl9Mg9C/dZmvJzADyw4TiwT ejAWWVn8wZSFXrWw/UKdbQ== X-QQ-GoodBg: 2 X-BIZMAIL-ID: 15283253318957034505 From: Jiawen Wu To: netdev@vger.kernel.org, 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 v2 6/6] net: txgbe: Support phylink MAC layer Date: Tue, 11 Apr 2023 17:27:25 +0800 Message-Id: <20230411092725.104992-7-jiawenwu@trustnetic.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20230411092725.104992-1-jiawenwu@trustnetic.com> References: <20230411092725.104992-1-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 and 1000BASE-X interfaces. Signed-off-by: Jiawen Wu --- .../ethernet/wangxun/txgbe/txgbe_ethtool.c | 34 ++++++ .../net/ethernet/wangxun/txgbe/txgbe_main.c | 19 ++- .../net/ethernet/wangxun/txgbe/txgbe_phy.c | 111 +++++++++++++++++- .../net/ethernet/wangxun/txgbe/txgbe_type.h | 5 + 4 files changed, 156 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c index d914e9a05404..43ca84c90637 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c @@ -6,11 +6,45 @@ #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 wx *wx = netdev_priv(netdev); + struct txgbe *txgbe; + + txgbe = (struct txgbe *)wx->priv; + return phylink_ethtool_nway_reset(txgbe->phylink); +} + +static int txgbe_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) +{ + struct wx *wx = netdev_priv(netdev); + struct txgbe *txgbe; + + txgbe = (struct txgbe *)wx->priv; + 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 wx *wx = netdev_priv(netdev); + struct txgbe *txgbe; + + txgbe = (struct txgbe *)wx->priv; + 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 d8108ab30818..f640ff1a084e 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 +205,7 @@ static int txgbe_request_irq(struct wx *wx) static void txgbe_up_complete(struct wx *wx) { - u32 reg; + struct txgbe *txgbe = (struct txgbe *)wx->priv; wx_control_hw(wx, true); wx_configure_vectors(wx); @@ -213,24 +214,16 @@ 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); } static void txgbe_reset(struct wx *wx) @@ -264,7 +257,6 @@ 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 +287,11 @@ static void txgbe_disable_device(struct wx *wx) static void txgbe_down(struct wx *wx) { + struct txgbe *txgbe = (struct txgbe *)wx->priv; + 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 123fa7ed9039..84dc3e850036 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -13,6 +13,7 @@ #include #include "../libwx/wx_type.h" +#include "../libwx/wx_lib.h" #include "../libwx/wx_hw.h" #include "txgbe_type.h" #include "txgbe_phy.h" @@ -445,6 +446,98 @@ 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 wx *wx = netdev_priv(to_net_dev(config->dev)); + struct txgbe *txgbe = (struct txgbe *)wx->priv; + + return &txgbe->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, rxcfg, 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 */ + rxcfg = rd32(wx, WX_MAC_RX_CFG); + wr32(wx, WX_MAC_RX_CFG, rxcfg); + 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); + __set_bit(PHY_INTERFACE_MODE_1000BASEX, 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 void txgbe_i2c_start(struct wx *wx, u16 dev_addr) { wr32(wx, TXGBE_I2C_ENABLE, 0); @@ -728,7 +821,9 @@ static void txgbe_irq_handler(struct irq_desc *desc) struct gpio_chip *gc = txgbe->gpio; irq_hw_number_t hwirq; unsigned long gpioirq; - u32 gpio; + u32 gpio, eicr, reg; + + eicr = wx_misc_isb(wx, WX_ISB_MISC); chained_irq_enter(chip, desc); @@ -744,6 +839,12 @@ 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 | + TXGBE_PX_MISC_ETH_AN)) { + 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)); @@ -834,6 +935,12 @@ int txgbe_init_phy(struct txgbe *txgbe) goto err; } + ret = txgbe_phylink_init(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to init phylink\n"); + goto err; + } + ret = txgbe_i2c_adapter_add(txgbe); if (ret) { wx_err(txgbe->wx, "failed to init i2c interface: %d\n", ret); @@ -862,6 +969,8 @@ int txgbe_init_phy(struct txgbe *txgbe) void txgbe_remove_phy(struct txgbe *txgbe) { + if (txgbe->phylink) + phylink_destroy(txgbe->phylink); if (txgbe->sfp_dev) platform_device_unregister(txgbe->sfp_dev); if (txgbe->i2c_adap) diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index d83225b4e34e..45fb887aaf6d 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -83,6 +83,10 @@ 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_CON 0x14900 /* I2C Control */ #define TXGBE_I2C_CON_SLAVE_DISABLE BIT(6) @@ -244,6 +248,7 @@ struct txgbe { struct txgbe_nodes nodes; struct mdio_device *mdiodev; struct phylink_pcs pcs; + struct phylink *phylink; struct i2c_adapter *i2c_adap; struct gpio_chip *gpio; struct platform_device *sfp_dev;