diff options
| -rw-r--r-- | drivers/net/ethernet/wangxun/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/libwx/wx_lib.c | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/libwx/wx_type.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_ethtool.c | 28 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_main.c | 65 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c | 673 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h | 10 | ||||
| -rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_type.h | 89 | ||||
| -rw-r--r-- | drivers/net/pcs/pcs-xpcs.c | 30 | ||||
| -rw-r--r-- | include/linux/pcs/pcs-xpcs.h | 1 |
11 files changed, 881 insertions, 33 deletions
diff --git a/drivers/net/ethernet/wangxun/Kconfig b/drivers/net/ethernet/wangxun/Kconfig index c9d88673d306..39596cd13539 100644 --- a/drivers/net/ethernet/wangxun/Kconfig +++ b/drivers/net/ethernet/wangxun/Kconfig @@ -40,6 +40,16 @@ config NGBE config TXGBE tristate "Wangxun(R) 10GbE PCI Express adapters support" depends on PCI + depends on COMMON_CLK + select REGMAP + select I2C + select I2C_DESIGNWARE_PLATFORM + select PHYLINK + select HWMON if TXGBE=y + select SFP + select GPIOLIB + select GPIOLIB_IRQCHIP + select PCS_XPCS select LIBWX help This driver supports Wangxun(R) 10GbE PCI Express family of diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index 3dd328d33fcc..2c3f08be8c37 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -2048,7 +2048,8 @@ void wx_free_irq(struct wx *wx) free_irq(entry->vector, q_vector); } - free_irq(wx->msix_entries[vector].vector, wx); + if (wx->mac.type == wx_mac_em) + free_irq(wx->msix_entries[vector].vector, wx); } EXPORT_SYMBOL(wx_free_irq); diff --git a/drivers/net/ethernet/wangxun/libwx/wx_type.h b/drivers/net/ethernet/wangxun/libwx/wx_type.h index 5063846e1b52..29dfb561887d 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_type.h +++ b/drivers/net/ethernet/wangxun/libwx/wx_type.h @@ -83,7 +83,9 @@ #define WX_GPIO_INTMASK 0x14834 #define WX_GPIO_INTTYPE_LEVEL 0x14838 #define WX_GPIO_POLARITY 0x1483C +#define WX_GPIO_INTSTATUS 0x14844 #define WX_GPIO_EOI 0x1484C +#define WX_GPIO_EXT 0x14850 /*********************** Transmit DMA registers **************************/ /* transmit global control */ @@ -814,6 +816,7 @@ enum wx_isb_idx { struct wx { unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)]; + void *priv; u8 __iomem *hw_addr; struct pci_dev *pdev; struct net_device *netdev; @@ -846,6 +849,7 @@ struct wx { bool wol_enabled; bool ncsi_enabled; bool gpio_ctrl; + raw_spinlock_t gpio_lock; /* Tx fast path data */ int num_tx_queues; diff --git a/drivers/net/ethernet/wangxun/txgbe/Makefile b/drivers/net/ethernet/wangxun/txgbe/Makefile index 6db14a2cb2d0..7507f762edfe 100644 --- a/drivers/net/ethernet/wangxun/txgbe/Makefile +++ b/drivers/net/ethernet/wangxun/txgbe/Makefile @@ -8,4 +8,5 @@ obj-$(CONFIG_TXGBE) += txgbe.o txgbe-objs := txgbe_main.o \ txgbe_hw.o \ + txgbe_phy.o \ txgbe_ethtool.o 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 <linux/netdevice.h> #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 cfe47f3d2503..46eba6d6188b 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -7,6 +7,7 @@ #include <linux/netdevice.h> #include <linux/string.h> #include <linux/etherdevice.h> +#include <linux/phylink.h> #include <net/ip.h> #include <linux/if_vlan.h> @@ -15,6 +16,7 @@ #include "../libwx/wx_hw.h" #include "txgbe_type.h" #include "txgbe_hw.h" +#include "txgbe_phy.h" #include "txgbe_ethtool.h" char txgbe_driver_name[] = "txgbe"; @@ -81,6 +83,8 @@ static int txgbe_enumerate_functions(struct wx *wx) **/ static void txgbe_irq_enable(struct wx *wx, bool queues) { + wr32(wx, WX_PX_MISC_IEN, TXGBE_PX_MISC_IEN_MASK); + /* unmask interrupt */ wx_intr_enable(wx, TXGBE_INTR_MISC(wx)); if (queues) @@ -128,17 +132,6 @@ static irqreturn_t txgbe_intr(int __always_unused irq, void *data) return IRQ_HANDLED; } -static irqreturn_t txgbe_msix_other(int __always_unused irq, void *data) -{ - struct wx *wx = data; - - /* re-enable the original interrupt state */ - if (netif_running(wx->netdev)) - txgbe_irq_enable(wx, false); - - return IRQ_HANDLED; -} - /** * txgbe_request_msix_irqs - Initialize MSI-X interrupts * @wx: board private structure @@ -170,13 +163,6 @@ static int txgbe_request_msix_irqs(struct wx *wx) } } - err = request_irq(wx->msix_entries[vector].vector, - txgbe_msix_other, 0, netdev->name, wx); - if (err) { - wx_err(wx, "request_irq for msix_other failed: %d\n", err); - goto free_queue_irqs; - } - return 0; free_queue_irqs: @@ -219,7 +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); @@ -228,24 +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) @@ -280,7 +260,6 @@ 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); @@ -311,8 +290,11 @@ 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); @@ -516,6 +498,7 @@ static int txgbe_probe(struct pci_dev *pdev, struct net_device *netdev; int err, expected_gts; struct wx *wx = NULL; + struct txgbe *txgbe; u16 eeprom_verh = 0, eeprom_verl = 0, offset = 0; u16 eeprom_cfg_blkh = 0, eeprom_cfg_blkl = 0; @@ -680,10 +663,23 @@ static int txgbe_probe(struct pci_dev *pdev, "0x%08x", etrack_id); } - err = register_netdev(netdev); + txgbe = devm_kzalloc(&pdev->dev, sizeof(*txgbe), GFP_KERNEL); + if (!txgbe) { + err = -ENOMEM; + goto err_release_hw; + } + + txgbe->wx = wx; + wx->priv = txgbe; + + err = txgbe_init_phy(txgbe); if (err) goto err_release_hw; + err = register_netdev(netdev); + if (err) + goto err_remove_phy; + pci_set_drvdata(pdev, wx); netif_tx_stop_all_queues(netdev); @@ -711,6 +707,8 @@ static int txgbe_probe(struct pci_dev *pdev, return 0; +err_remove_phy: + txgbe_remove_phy(txgbe); err_release_hw: wx_clear_interrupt_scheme(wx); wx_control_hw(wx, false); @@ -736,11 +734,14 @@ err_pci_disable_dev: static void txgbe_remove(struct pci_dev *pdev) { struct wx *wx = pci_get_drvdata(pdev); + struct txgbe *txgbe = wx->priv; struct net_device *netdev; netdev = wx->netdev; unregister_netdev(netdev); + txgbe_remove_phy(txgbe); + pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM)); diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c new file mode 100644 index 000000000000..8779645a54be --- /dev/null +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.c @@ -0,0 +1,673 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */ + +#include <linux/gpio/machine.h> +#include <linux/gpio/driver.h> +#include <linux/gpio/property.h> +#include <linux/clk-provider.h> +#include <linux/clkdev.h> +#include <linux/i2c.h> +#include <linux/pci.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/pcs/pcs-xpcs.h> +#include <linux/phylink.h> + +#include "../libwx/wx_type.h" +#include "../libwx/wx_lib.h" +#include "../libwx/wx_hw.h" +#include "txgbe_type.h" +#include "txgbe_phy.h" + +static int txgbe_swnodes_register(struct txgbe *txgbe) +{ + struct txgbe_nodes *nodes = &txgbe->nodes; + struct pci_dev *pdev = txgbe->wx->pdev; + struct software_node *swnodes; + u32 id; + + id = (pdev->bus->number << 8) | pdev->devfn; + + snprintf(nodes->gpio_name, sizeof(nodes->gpio_name), "txgbe_gpio-%x", id); + snprintf(nodes->i2c_name, sizeof(nodes->i2c_name), "txgbe_i2c-%x", id); + snprintf(nodes->sfp_name, sizeof(nodes->sfp_name), "txgbe_sfp-%x", id); + snprintf(nodes->phylink_name, sizeof(nodes->phylink_name), "txgbe_phylink-%x", id); + + swnodes = nodes->swnodes; + + /* GPIO 0: tx fault + * GPIO 1: tx disable + * GPIO 2: sfp module absent + * GPIO 3: rx signal lost + * GPIO 4: rate select, 1G(0) 10G(1) + * GPIO 5: rate select, 1G(0) 10G(1) + */ + nodes->gpio_props[0] = PROPERTY_ENTRY_STRING("pinctrl-names", "default"); + swnodes[SWNODE_GPIO] = NODE_PROP(nodes->gpio_name, nodes->gpio_props); + nodes->gpio0_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 0, GPIO_ACTIVE_HIGH); + nodes->gpio1_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 1, GPIO_ACTIVE_HIGH); + nodes->gpio2_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 2, GPIO_ACTIVE_LOW); + nodes->gpio3_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 3, GPIO_ACTIVE_HIGH); + nodes->gpio4_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 4, GPIO_ACTIVE_HIGH); + nodes->gpio5_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_GPIO], 5, GPIO_ACTIVE_HIGH); + + nodes->i2c_props[0] = PROPERTY_ENTRY_STRING("compatible", "snps,designware-i2c"); + nodes->i2c_props[1] = PROPERTY_ENTRY_BOOL("wx,i2c-snps-model"); + nodes->i2c_props[2] = PROPERTY_ENTRY_U32("clock-frequency", I2C_MAX_STANDARD_MODE_FREQ); + swnodes[SWNODE_I2C] = NODE_PROP(nodes->i2c_name, nodes->i2c_props); + nodes->i2c_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_I2C]); + + nodes->sfp_props[0] = PROPERTY_ENTRY_STRING("compatible", "sff,sfp"); + nodes->sfp_props[1] = PROPERTY_ENTRY_REF_ARRAY("i2c-bus", nodes->i2c_ref); + nodes->sfp_props[2] = PROPERTY_ENTRY_REF_ARRAY("tx-fault-gpios", nodes->gpio0_ref); + nodes->sfp_props[3] = PROPERTY_ENTRY_REF_ARRAY("tx-disable-gpios", nodes->gpio1_ref); + nodes->sfp_props[4] = PROPERTY_ENTRY_REF_ARRAY("mod-def0-gpios", nodes->gpio2_ref); + nodes->sfp_props[5] = PROPERTY_ENTRY_REF_ARRAY("los-gpios", nodes->gpio3_ref); + nodes->sfp_props[6] = PROPERTY_ENTRY_REF_ARRAY("rate-select1-gpios", nodes->gpio4_ref); + nodes->sfp_props[7] = PROPERTY_ENTRY_REF_ARRAY("rate-select0-gpios", nodes->gpio5_ref); + swnodes[SWNODE_SFP] = NODE_PROP(nodes->sfp_name, nodes->sfp_props); + nodes->sfp_ref[0] = SOFTWARE_NODE_REFERENCE(&swnodes[SWNODE_SFP]); + + nodes->phylink_props[0] = PROPERTY_ENTRY_STRING("managed", "in-band-status"); + nodes->phylink_props[1] = PROPERTY_ENTRY_REF_ARRAY("sfp", nodes->sfp_ref); + swnodes[SWNODE_PHYLINK] = NODE_PROP(nodes->phylink_name, nodes->phylink_props); + + nodes->group[SWNODE_GPIO] = &swnodes[SWNODE_GPIO]; + nodes->group[SWNODE_I2C] = &swnodes[SWNODE_I2C]; + nodes->group[SWNODE_SFP] = &swnodes[SWNODE_SFP]; + nodes->group[SWNODE_PHYLINK] = &swnodes[SWNODE_PHYLINK]; + + return software_node_register_node_group(nodes->group); +} + +static int txgbe_pcs_read(struct mii_bus *bus, int addr, int devnum, int regnum) +{ + struct wx *wx = bus->priv; + u32 offset, val; + + if (addr) + return -EOPNOTSUPP; + + offset = devnum << 16 | regnum; + + /* Set the LAN port indicator to IDA_ADDR */ + wr32(wx, TXGBE_XPCS_IDA_ADDR, offset); + + /* Read the data from IDA_DATA register */ + val = rd32(wx, TXGBE_XPCS_IDA_DATA); + + return (u16)val; +} + +static int txgbe_pcs_write(struct mii_bus *bus, int addr, int devnum, int regnum, u16 val) +{ + struct wx *wx = bus->priv; + u32 offset; + + if (addr) + return -EOPNOTSUPP; + + offset = devnum << 16 | regnum; + + /* Set the LAN port indicator to IDA_ADDR */ + wr32(wx, TXGBE_XPCS_IDA_ADDR, offset); + + /* Write the data to IDA_DATA register */ + wr32(wx, TXGBE_XPCS_IDA_DATA, val); + + return 0; +} + +static int txgbe_mdio_pcs_init(struct txgbe *txgbe) +{ + struct mii_bus *mii_bus; + struct dw_xpcs *xpcs; + struct pci_dev *pdev; + struct wx *wx; + int ret = 0; + + wx = txgbe->wx; + pdev = wx->pdev; + + mii_bus = devm_mdiobus_alloc(&pdev->dev); + if (!mii_bus) + return -ENOMEM; + + mii_bus->name = "txgbe_pcs_mdio_bus"; + mii_bus->read_c45 = &txgbe_pcs_read; + mii_bus->write_c45 = &txgbe_pcs_write; + mii_bus->parent = &pdev->dev; + mii_bus->phy_mask = ~0; + mii_bus->priv = wx; + snprintf(mii_bus->id, MII_BUS_ID_SIZE, "txgbe_pcs-%x", + (pdev->bus->number << 8) | pdev->devfn); + + ret = devm_mdiobus_register(&pdev->dev, mii_bus); + if (ret) + return ret; + + xpcs = xpcs_create_mdiodev(mii_bus, 0, PHY_INTERFACE_MODE_10GBASER); + if (IS_ERR(xpcs)) + return PTR_ERR(xpcs); + + txgbe->xpcs = xpcs; + + 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); + int val; + + val = rd32m(wx, WX_GPIO_EXT, BIT(offset)); + + return !!(val & BIT(offset)); +} + +static int txgbe_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) +{ + struct wx *wx = gpiochip_get_data(chip); + u32 val; + + val = rd32(wx, WX_GPIO_DDR); + if (BIT(offset) & val) + return GPIO_LINE_DIRECTION_OUT; + + return GPIO_LINE_DIRECTION_IN; +} + +static int txgbe_gpio_direction_in(struct gpio_chip *chip, unsigned int offset) +{ + struct wx *wx = gpiochip_get_data(chip); + unsigned long flags; + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + wr32m(wx, WX_GPIO_DDR, BIT(offset), 0); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); + + return 0; +} + +static int txgbe_gpio_direction_out(struct gpio_chip *chip, unsigned int offset, + int val) +{ + struct wx *wx = gpiochip_get_data(chip); + unsigned long flags; + u32 set; + + set = val ? BIT(offset) : 0; + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + wr32m(wx, WX_GPIO_DR, BIT(offset), set); + wr32m(wx, WX_GPIO_DDR, BIT(offset), BIT(offset)); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); + + return 0; +} + +static void txgbe_gpio_irq_ack(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + irq_hw_number_t hwirq = irqd_to_hwirq(d); + struct wx *wx = gpiochip_get_data(gc); + unsigned long flags; + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + wr32(wx, WX_GPIO_EOI, BIT(hwirq)); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); +} + +static void txgbe_gpio_irq_mask(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + irq_hw_number_t hwirq = irqd_to_hwirq(d); + struct wx *wx = gpiochip_get_data(gc); + unsigned long flags; + + gpiochip_disable_irq(gc, hwirq); + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + wr32m(wx, WX_GPIO_INTMASK, BIT(hwirq), BIT(hwirq)); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); +} + +static void txgbe_gpio_irq_unmask(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + irq_hw_number_t hwirq = irqd_to_hwirq(d); + struct wx *wx = gpiochip_get_data(gc); + unsigned long flags; + + gpiochip_enable_irq(gc, hwirq); + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + wr32m(wx, WX_GPIO_INTMASK, BIT(hwirq), 0); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); +} + +static void txgbe_toggle_trigger(struct gpio_chip *gc, unsigned int offset) +{ + struct wx *wx = gpiochip_get_data(gc); + u32 pol, val; + + pol = rd32(wx, WX_GPIO_POLARITY); + val = rd32(wx, WX_GPIO_EXT); + + if (val & BIT(offset)) + pol &= ~BIT(offset); + else + pol |= BIT(offset); + + wr32(wx, WX_GPIO_POLARITY, pol); +} + +static int txgbe_gpio_set_type(struct irq_data *d, unsigned int type) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + irq_hw_number_t hwirq = irqd_to_hwirq(d); + struct wx *wx = gpiochip_get_data(gc); + u32 level, polarity, mask; + unsigned long flags; + + mask = BIT(hwirq); + + if (type & IRQ_TYPE_LEVEL_MASK) { + level = 0; + irq_set_handler_locked(d, handle_level_irq); + } else { + level = mask; + irq_set_handler_locked(d, handle_edge_irq); + } + + if (type == IRQ_TYPE_EDGE_RISING || type == IRQ_TYPE_LEVEL_HIGH) + polarity = mask; + else + polarity = 0; + + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + + wr32m(wx, WX_GPIO_INTEN, mask, mask); + wr32m(wx, WX_GPIO_INTTYPE_LEVEL, mask, level); + if (type == IRQ_TYPE_EDGE_BOTH) + txgbe_toggle_trigger(gc, hwirq); + else + wr32m(wx, WX_GPIO_POLARITY, mask, polarity); + + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); + + return 0; +} + +static const struct irq_chip txgbe_gpio_irq_chip = { + .name = "txgbe_gpio_irq", + .irq_ack = txgbe_gpio_irq_ack, + .irq_mask = txgbe_gpio_irq_mask, + .irq_unmask = txgbe_gpio_irq_unmask, + .irq_set_type = txgbe_gpio_set_type, + .flags = IRQCHIP_IMMUTABLE, + GPIOCHIP_IRQ_RESOURCE_HELPERS, +}; + +static void txgbe_irq_handler(struct irq_desc *desc) +{ + struct irq_chip *chip = irq_desc_get_chip(desc); + struct wx *wx = irq_desc_get_handler_data(desc); + struct txgbe *txgbe = wx->priv; + irq_hw_number_t hwirq; + 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); + + gpioirq = rd32(wx, WX_GPIO_INTSTATUS); + + gc = txgbe->gpio; + for_each_set_bit(hwirq, &gpioirq, gc->ngpio) { + int gpio = irq_find_mapping(gc->irq.domain, hwirq); + u32 irq_type = irq_get_trigger_type(gpio); + + generic_handle_domain_irq(gc->irq.domain, hwirq); + + if ((irq_type & IRQ_TYPE_SENSE_MASK) == IRQ_TYPE_EDGE_BOTH) { + raw_spin_lock_irqsave(&wx->gpio_lock, flags); + txgbe_toggle_trigger(gc, hwirq); + raw_spin_unlock_irqrestore(&wx->gpio_lock, flags); + } + } + + 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)); +} + +static int txgbe_gpio_init(struct txgbe *txgbe) +{ + struct gpio_irq_chip *girq; + struct gpio_chip *gc; + struct device *dev; + struct wx *wx; + int ret; + + wx = txgbe->wx; + dev = &wx->pdev->dev; + + raw_spin_lock_init(&wx->gpio_lock); + + gc = devm_kzalloc(dev, sizeof(*gc), GFP_KERNEL); + if (!gc) + return -ENOMEM; + + gc->label = devm_kasprintf(dev, GFP_KERNEL, "txgbe_gpio-%x", + (wx->pdev->bus->number << 8) | wx->pdev->devfn); + if (!gc->label) + return -ENOMEM; + + gc->base = -1; + gc->ngpio = 6; + gc->owner = THIS_MODULE; + gc->parent = dev; + gc->fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_GPIO]); + gc->get = txgbe_gpio_get; + gc->get_direction = txgbe_gpio_get_direction; + gc->direction_input = txgbe_gpio_direction_in; + gc->direction_output = txgbe_gpio_direction_out; + + girq = &gc->irq; + gpio_irq_chip_set_chip(girq, &txgbe_gpio_irq_chip); + girq->parent_handler = txgbe_irq_handler; + girq->parent_handler_data = wx; + girq->num_parents = 1; + girq->parents = devm_kcalloc(dev, girq->num_parents, + sizeof(*girq->parents), GFP_KERNEL); + if (!girq->parents) + return -ENOMEM; + girq->parents[0] = wx->msix_entries[wx->num_q_vectors].vector; + girq->default_type = IRQ_TYPE_NONE; + girq->handler = handle_bad_irq; + + ret = devm_gpiochip_add_data(dev, gc, wx); + if (ret) + return ret; + + txgbe->gpio = gc; + + return 0; +} + +static int txgbe_clock_register(struct txgbe *txgbe) +{ + struct pci_dev *pdev = txgbe->wx->pdev; + struct clk_lookup *clock; + char clk_name[32]; + struct clk *clk; + + snprintf(clk_name, sizeof(clk_name), "i2c_designware.%d", + (pdev->bus->number << 8) | pdev->devfn); + + clk = clk_register_fixed_rate(NULL, clk_name, NULL, 0, 156250000); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + clock = clkdev_create(clk, NULL, clk_name); + if (!clock) { + clk_unregister(clk); + return -ENOMEM; + } + + txgbe->clk = clk; + txgbe->clock = clock; + + return 0; +} + +static int txgbe_i2c_read(void *context, unsigned int reg, unsigned int *val) +{ + struct wx *wx = context; + + *val = rd32(wx, reg + TXGBE_I2C_BASE); + + return 0; +} + +static int txgbe_i2c_write(void *context, unsigned int reg, unsigned int val) +{ + struct wx *wx = context; + + wr32(wx, reg + TXGBE_I2C_BASE, val); + + return 0; +} + +static const struct regmap_config i2c_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_read = txgbe_i2c_read, + .reg_write = txgbe_i2c_write, + .fast_io = true, +}; + +static int txgbe_i2c_register(struct txgbe *txgbe) +{ + struct platform_device_info info = {}; + struct platform_device *i2c_dev; + struct regmap *i2c_regmap; + struct pci_dev *pdev; + struct wx *wx; + + wx = txgbe->wx; + pdev = wx->pdev; + i2c_regmap = devm_regmap_init(&pdev->dev, NULL, wx, &i2c_regmap_config); + if (IS_ERR(i2c_regmap)) { + wx_err(wx, "failed to init I2C regmap\n"); + return PTR_ERR(i2c_regmap); + } + + info.parent = &pdev->dev; + info.fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_I2C]); + info.name = "i2c_designware"; + info.id = (pdev->bus->number << 8) | pdev->devfn; + + info.res = &DEFINE_RES_IRQ(pdev->irq); + info.num_res = 1; + i2c_dev = platform_device_register_full(&info); + if (IS_ERR(i2c_dev)) + return PTR_ERR(i2c_dev); + + txgbe->i2c_dev = i2c_dev; + + return 0; +} + +static int txgbe_sfp_register(struct txgbe *txgbe) +{ + struct pci_dev *pdev = txgbe->wx->pdev; + struct platform_device_info info = {}; + struct platform_device *sfp_dev; + + info.parent = &pdev->dev; + info.fwnode = software_node_fwnode(txgbe->nodes.group[SWNODE_SFP]); + info.name = "sfp"; + info.id = (pdev->bus->number << 8) | pdev->devfn; + sfp_dev = platform_device_register_full(&info); + if (IS_ERR(sfp_dev)) + return PTR_ERR(sfp_dev); + + txgbe->sfp_dev = sfp_dev; + + return 0; +} + +int txgbe_init_phy(struct txgbe *txgbe) +{ + int ret; + + ret = txgbe_swnodes_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to register software nodes\n"); + return ret; + } + + ret = txgbe_mdio_pcs_init(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to init mdio pcs: %d\n", ret); + 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_phylink; + } + + ret = txgbe_clock_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to register clock: %d\n", ret); + goto err_destroy_phylink; + } + + ret = txgbe_i2c_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to init i2c interface: %d\n", ret); + goto err_unregister_clk; + } + + ret = txgbe_sfp_register(txgbe); + if (ret) { + wx_err(txgbe->wx, "failed to register sfp\n"); + goto err_unregister_i2c; + } + + return 0; + +err_unregister_i2c: + platform_device_unregister(txgbe->i2c_dev); +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: + software_node_unregister_node_group(txgbe->nodes.group); + + return ret; +} + +void txgbe_remove_phy(struct txgbe *txgbe) +{ + platform_device_unregister(txgbe->sfp_dev); + 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_phy.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h new file mode 100644 index 000000000000..1ab592124986 --- /dev/null +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_phy.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (c) 2015 - 2023 Beijing WangXun Technology Co., Ltd. */ + +#ifndef _TXGBE_PHY_H_ +#define _TXGBE_PHY_H_ + +int txgbe_init_phy(struct txgbe *txgbe); +void txgbe_remove_phy(struct txgbe *txgbe); + +#endif /* _TXGBE_NODE_H_ */ diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h index 032972369965..51199c355f95 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_type.h @@ -4,6 +4,8 @@ #ifndef _TXGBE_TYPE_H_ #define _TXGBE_TYPE_H_ +#include <linux/property.h> + /* Device IDs */ #define TXGBE_DEV_ID_SP1000 0x1001 #define TXGBE_DEV_ID_WX1820 0x2001 @@ -53,6 +55,39 @@ #define TXGBE_TS_CTL 0x10300 #define TXGBE_TS_CTL_EVAL_MD BIT(31) +/* GPIO register bit */ +#define TXGBE_GPIOBIT_0 BIT(0) /* I:tx fault */ +#define TXGBE_GPIOBIT_1 BIT(1) /* O:tx disabled */ +#define TXGBE_GPIOBIT_2 BIT(2) /* I:sfp module absent */ +#define TXGBE_GPIOBIT_3 BIT(3) /* I:rx signal lost */ +#define TXGBE_GPIOBIT_4 BIT(4) /* O:rate select, 1G(0) 10G(1) */ +#define TXGBE_GPIOBIT_5 BIT(5) /* O:rate select, 1G(0) 10G(1) */ + +/* Extended Interrupt Enable Set */ +#define TXGBE_PX_MISC_ETH_LKDN BIT(8) +#define TXGBE_PX_MISC_DEV_RST BIT(10) +#define TXGBE_PX_MISC_ETH_EVENT BIT(17) +#define TXGBE_PX_MISC_ETH_LK BIT(18) +#define TXGBE_PX_MISC_ETH_AN BIT(19) +#define TXGBE_PX_MISC_INT_ERR BIT(20) +#define TXGBE_PX_MISC_GPIO BIT(26) +#define TXGBE_PX_MISC_IEN_MASK \ + (TXGBE_PX_MISC_ETH_LKDN | TXGBE_PX_MISC_DEV_RST | \ + TXGBE_PX_MISC_ETH_EVENT | TXGBE_PX_MISC_ETH_LK | \ + 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 + +/************************************** ETH PHY ******************************/ +#define TXGBE_XPCS_IDA_ADDR 0x13000 +#define TXGBE_XPCS_IDA_DATA 0x13004 + /* Part Number String Length */ #define TXGBE_PBANUM_LENGTH 32 @@ -100,4 +135,58 @@ extern char txgbe_driver_name[]; +static inline struct txgbe *netdev_to_txgbe(struct net_device *netdev) +{ + struct wx *wx = netdev_priv(netdev); + + return wx->priv; +} + +#define NODE_PROP(_NAME, _PROP) \ + (const struct software_node) { \ + .name = _NAME, \ + .properties = _PROP, \ + } + +enum txgbe_swnodes { + SWNODE_GPIO = 0, + SWNODE_I2C, + SWNODE_SFP, + SWNODE_PHYLINK, + SWNODE_MAX +}; + +struct txgbe_nodes { + char gpio_name[32]; + char i2c_name[32]; + char sfp_name[32]; + char phylink_name[32]; + struct property_entry gpio_props[1]; + struct property_entry i2c_props[3]; + struct property_entry sfp_props[8]; + struct property_entry phylink_props[2]; + struct software_node_ref_args i2c_ref[1]; + struct software_node_ref_args gpio0_ref[1]; + struct software_node_ref_args gpio1_ref[1]; + struct software_node_ref_args gpio2_ref[1]; + struct software_node_ref_args gpio3_ref[1]; + struct software_node_ref_args gpio4_ref[1]; + struct software_node_ref_args gpio5_ref[1]; + struct software_node_ref_args sfp_ref[1]; + struct software_node swnodes[SWNODE_MAX]; + const struct software_node *group[SWNODE_MAX + 1]; +}; + +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; + struct clk *clk; + struct gpio_chip *gpio; +}; + #endif /* _TXGBE_TYPE_H_ */ diff --git a/drivers/net/pcs/pcs-xpcs.c b/drivers/net/pcs/pcs-xpcs.c index 23223f0f8cad..e4e59aa9faf7 100644 --- a/drivers/net/pcs/pcs-xpcs.c +++ b/drivers/net/pcs/pcs-xpcs.c @@ -64,6 +64,16 @@ static const int xpcs_xlgmii_features[] = { __ETHTOOL_LINK_MODE_MASK_NBITS, }; +static const int xpcs_10gbaser_features[] = { + ETHTOOL_LINK_MODE_Pause_BIT, + ETHTOOL_LINK_MODE_Asym_Pause_BIT, + ETHTOOL_LINK_MODE_10000baseSR_Full_BIT, + ETHTOOL_LINK_MODE_10000baseLR_Full_BIT, + ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT, + ETHTOOL_LINK_MODE_10000baseER_Full_BIT, + __ETHTOOL_LINK_MODE_MASK_NBITS, +}; + static const int xpcs_sgmii_features[] = { ETHTOOL_LINK_MODE_Pause_BIT, ETHTOOL_LINK_MODE_Asym_Pause_BIT, @@ -106,6 +116,10 @@ static const phy_interface_t xpcs_xlgmii_interfaces[] = { PHY_INTERFACE_MODE_XLGMII, }; +static const phy_interface_t xpcs_10gbaser_interfaces[] = { + PHY_INTERFACE_MODE_10GBASER, +}; + static const phy_interface_t xpcs_sgmii_interfaces[] = { PHY_INTERFACE_MODE_SGMII, }; @@ -123,6 +137,7 @@ enum { DW_XPCS_USXGMII, DW_XPCS_10GKR, DW_XPCS_XLGMII, + DW_XPCS_10GBASER, DW_XPCS_SGMII, DW_XPCS_1000BASEX, DW_XPCS_2500BASEX, @@ -246,6 +261,7 @@ static int xpcs_soft_reset(struct dw_xpcs *xpcs, switch (compat->an_mode) { case DW_AN_C73: + case DW_10GBASER: dev = MDIO_MMD_PCS; break; case DW_AN_C37_SGMII: @@ -802,6 +818,8 @@ int xpcs_do_config(struct dw_xpcs *xpcs, phy_interface_t interface, return -ENODEV; switch (compat->an_mode) { + case DW_10GBASER: + break; case DW_AN_C73: if (test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, advertising)) { ret = xpcs_config_aneg_c73(xpcs, compat); @@ -998,6 +1016,9 @@ static void xpcs_get_state(struct phylink_pcs *pcs, return; switch (compat->an_mode) { + case DW_10GBASER: + phylink_mii_c45_pcs_get_state(xpcs->mdiodev, state); + break; case DW_AN_C73: ret = xpcs_get_state_c73(xpcs, state, compat); if (ret) { @@ -1153,6 +1174,12 @@ static const struct xpcs_compat synopsys_xpcs_compat[DW_XPCS_INTERFACE_MAX] = { .num_interfaces = ARRAY_SIZE(xpcs_xlgmii_interfaces), .an_mode = DW_AN_C73, }, + [DW_XPCS_10GBASER] = { + .supported = xpcs_10gbaser_features, + .interface = xpcs_10gbaser_interfaces, + .num_interfaces = ARRAY_SIZE(xpcs_10gbaser_interfaces), + .an_mode = DW_10GBASER, + }, [DW_XPCS_SGMII] = { .supported = xpcs_sgmii_features, .interface = xpcs_sgmii_interfaces, @@ -1256,6 +1283,9 @@ static struct dw_xpcs *xpcs_create(struct mdio_device *mdiodev, } xpcs->pcs.ops = &xpcs_phylink_ops; + if (compat->an_mode == DW_10GBASER) + return xpcs; + xpcs->pcs.poll = true; ret = xpcs_soft_reset(xpcs, compat); diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h index 914e387d5387..ec8175b847cc 100644 --- a/include/linux/pcs/pcs-xpcs.h +++ b/include/linux/pcs/pcs-xpcs.h @@ -18,6 +18,7 @@ #define DW_AN_C37_SGMII 2 #define DW_2500BASEX 3 #define DW_AN_C37_1000BASEX 4 +#define DW_10GBASER 5 struct xpcs_id; |