// SPDX-License-Identifier: GPL-2.0 /* Renesas Ethernet AVB device driver * * Copyright (C) 2014-2019 Renesas Electronics Corporation * Copyright (C) 2015 Renesas Solutions Corp. * Copyright (C) 2015-2016 Cogent Embedded, Inc. <[email protected]> * * Based on the SuperH Ethernet driver */ #include <linux/cache.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dma-mapping.h> #include <linux/err.h> #include <linux/etherdevice.h> #include <linux/ethtool.h> #include <linux/if_vlan.h> #include <linux/kernel.h> #include <linux/list.h> #include <linux/module.h> #include <linux/net_tstamp.h> #include <linux/of.h> #include <linux/of_mdio.h> #include <linux/of_net.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/reset.h> #include <linux/math64.h> #include <net/ip.h> #include <net/page_pool/helpers.h> #include "ravb.h" #define RAVB_DEF_MSG_ENABLE … void ravb_modify(struct net_device *ndev, enum ravb_reg reg, u32 clear, u32 set) { … } int ravb_wait(struct net_device *ndev, enum ravb_reg reg, u32 mask, u32 value) { … } static int ravb_set_opmode(struct net_device *ndev, u32 opmode) { … } static void ravb_set_rate_gbeth(struct net_device *ndev) { … } static void ravb_set_rate_rcar(struct net_device *ndev) { … } /* Get MAC address from the MAC address registers * * Ethernet AVB device doesn't have ROM for MAC address. * This function gets the MAC address that was used by a bootloader. */ static void ravb_read_mac_address(struct device_node *np, struct net_device *ndev) { … } static void ravb_mdio_ctrl(struct mdiobb_ctrl *ctrl, u32 mask, int set) { … } /* MDC pin control */ static void ravb_set_mdc(struct mdiobb_ctrl *ctrl, int level) { … } /* Data I/O pin control */ static void ravb_set_mdio_dir(struct mdiobb_ctrl *ctrl, int output) { … } /* Set data bit */ static void ravb_set_mdio_data(struct mdiobb_ctrl *ctrl, int value) { … } /* Get data bit */ static int ravb_get_mdio_data(struct mdiobb_ctrl *ctrl) { … } /* MDIO bus control struct */ static const struct mdiobb_ops bb_ops = …; static struct ravb_rx_desc * ravb_rx_get_desc(struct ravb_private *priv, unsigned int q, unsigned int i) { … } /* Free TX skb function for AVB-IP */ static int ravb_tx_free(struct net_device *ndev, int q, bool free_txed_only) { … } static void ravb_rx_ring_free(struct net_device *ndev, int q) { … } /* Free skb's and DMA buffers for Ethernet AVB */ static void ravb_ring_free(struct net_device *ndev, int q) { … } static int ravb_alloc_rx_buffer(struct net_device *ndev, int q, u32 entry, gfp_t gfp_mask, struct ravb_rx_desc *rx_desc) { … } static u32 ravb_rx_ring_refill(struct net_device *ndev, int q, u32 count, gfp_t gfp_mask) { … } /* Format skb and descriptor buffer for Ethernet AVB */ static void ravb_ring_format(struct net_device *ndev, int q) { … } static void *ravb_alloc_rx_desc(struct net_device *ndev, int q) { … } /* Init skb and descriptor buffer for Ethernet AVB */ static int ravb_ring_init(struct net_device *ndev, int q) { … } static void ravb_csum_init_gbeth(struct net_device *ndev) { … } static void ravb_emac_init_gbeth(struct net_device *ndev) { … } static void ravb_emac_init_rcar(struct net_device *ndev) { … } static void ravb_emac_init_rcar_gen4(struct net_device *ndev) { … } /* E-MAC init function */ static void ravb_emac_init(struct net_device *ndev) { … } static int ravb_dmac_init_gbeth(struct net_device *ndev) { … } static int ravb_dmac_init_rcar(struct net_device *ndev) { … } /* Device init function for Ethernet AVB */ static int ravb_dmac_init(struct net_device *ndev) { … } static void ravb_get_tx_tstamp(struct net_device *ndev) { … } static void ravb_rx_csum_gbeth(struct sk_buff *skb) { … } static void ravb_rx_csum(struct sk_buff *skb) { … } /* Packet receive function for Gigabit Ethernet */ static int ravb_rx_gbeth(struct net_device *ndev, int budget, int q) { … } /* Packet receive function for Ethernet AVB */ static int ravb_rx_rcar(struct net_device *ndev, int budget, int q) { … } /* Packet receive function for Ethernet AVB */ static int ravb_rx(struct net_device *ndev, int budget, int q) { … } static void ravb_rcv_snd_disable(struct net_device *ndev) { … } static void ravb_rcv_snd_enable(struct net_device *ndev) { … } /* function for waiting dma process finished */ static int ravb_stop_dma(struct net_device *ndev) { … } /* E-MAC interrupt handler */ static void ravb_emac_interrupt_unlocked(struct net_device *ndev) { … } static irqreturn_t ravb_emac_interrupt(int irq, void *dev_id) { … } /* Error interrupt handler */ static void ravb_error_interrupt(struct net_device *ndev) { … } static bool ravb_queue_interrupt(struct net_device *ndev, int q) { … } static bool ravb_timestamp_interrupt(struct net_device *ndev) { … } static irqreturn_t ravb_interrupt(int irq, void *dev_id) { … } /* Timestamp/Error/gPTP interrupt handler */ static irqreturn_t ravb_multi_interrupt(int irq, void *dev_id) { … } static irqreturn_t ravb_dma_interrupt(int irq, void *dev_id, int q) { … } static irqreturn_t ravb_be_interrupt(int irq, void *dev_id) { … } static irqreturn_t ravb_nc_interrupt(int irq, void *dev_id) { … } static int ravb_poll(struct napi_struct *napi, int budget) { … } static void ravb_set_duplex_gbeth(struct net_device *ndev) { … } /* PHY state control function */ static void ravb_adjust_link(struct net_device *ndev) { … } /* PHY init function */ static int ravb_phy_init(struct net_device *ndev) { … } /* PHY control start function */ static int ravb_phy_start(struct net_device *ndev) { … } static u32 ravb_get_msglevel(struct net_device *ndev) { … } static void ravb_set_msglevel(struct net_device *ndev, u32 value) { … } static const char ravb_gstrings_stats_gbeth[][ETH_GSTRING_LEN] = …; static const char ravb_gstrings_stats[][ETH_GSTRING_LEN] = …; static int ravb_get_sset_count(struct net_device *netdev, int sset) { … } static void ravb_get_ethtool_stats(struct net_device *ndev, struct ethtool_stats *estats, u64 *data) { … } static void ravb_get_strings(struct net_device *ndev, u32 stringset, u8 *data) { … } static void ravb_get_ringparam(struct net_device *ndev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { … } static int ravb_set_ringparam(struct net_device *ndev, struct ethtool_ringparam *ring, struct kernel_ethtool_ringparam *kernel_ring, struct netlink_ext_ack *extack) { … } static int ravb_get_ts_info(struct net_device *ndev, struct kernel_ethtool_ts_info *info) { … } static void ravb_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol) { … } static int ravb_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol) { … } static const struct ethtool_ops ravb_ethtool_ops = …; static int ravb_set_config_mode(struct net_device *ndev) { … } static void ravb_set_gti(struct net_device *ndev) { … } static int ravb_compute_gti(struct net_device *ndev) { … } /* Set tx and rx clock internal delay modes */ static void ravb_parse_delay_mode(struct device_node *np, struct net_device *ndev) { … } static void ravb_set_delay_mode(struct net_device *ndev) { … } /* Network device open function for Ethernet AVB */ static int ravb_open(struct net_device *ndev) { … } /* Timeout function for Ethernet AVB */ static void ravb_tx_timeout(struct net_device *ndev, unsigned int txqueue) { … } static void ravb_tx_timeout_work(struct work_struct *work) { … } static bool ravb_can_tx_csum_gbeth(struct sk_buff *skb) { … } /* Packet transmit function for Ethernet AVB */ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev) { … } static u16 ravb_select_queue(struct net_device *ndev, struct sk_buff *skb, struct net_device *sb_dev) { … } static struct net_device_stats *ravb_get_stats(struct net_device *ndev) { … } /* Update promiscuous bit */ static void ravb_set_rx_mode(struct net_device *ndev) { … } /* Device close function for Ethernet AVB */ static int ravb_close(struct net_device *ndev) { … } static int ravb_hwtstamp_get(struct net_device *ndev, struct ifreq *req) { … } /* Control hardware time stamping */ static int ravb_hwtstamp_set(struct net_device *ndev, struct ifreq *req) { … } /* ioctl to device function */ static int ravb_do_ioctl(struct net_device *ndev, struct ifreq *req, int cmd) { … } static int ravb_change_mtu(struct net_device *ndev, int new_mtu) { … } static void ravb_set_rx_csum(struct net_device *ndev, bool enable) { … } static int ravb_endisable_csum_gbeth(struct net_device *ndev, enum ravb_reg reg, u32 val, u32 mask) { … } static int ravb_set_features_gbeth(struct net_device *ndev, netdev_features_t features) { … } static int ravb_set_features_rcar(struct net_device *ndev, netdev_features_t features) { … } static int ravb_set_features(struct net_device *ndev, netdev_features_t features) { … } static const struct net_device_ops ravb_netdev_ops = …; /* MDIO bus init function */ static int ravb_mdio_init(struct ravb_private *priv) { … } /* MDIO bus release function */ static int ravb_mdio_release(struct ravb_private *priv) { … } static const struct ravb_hw_info ravb_gen2_hw_info = …; static const struct ravb_hw_info ravb_gen3_hw_info = …; static const struct ravb_hw_info ravb_gen4_hw_info = …; static const struct ravb_hw_info ravb_rzv2m_hw_info = …; static const struct ravb_hw_info gbeth_hw_info = …; static const struct of_device_id ravb_match_table[] = …; MODULE_DEVICE_TABLE(of, ravb_match_table); static int ravb_setup_irq(struct ravb_private *priv, const char *irq_name, const char *ch, int *irq, irq_handler_t handler) { … } static int ravb_setup_irqs(struct ravb_private *priv) { … } static int ravb_probe(struct platform_device *pdev) { … } static void ravb_remove(struct platform_device *pdev) { … } static int ravb_wol_setup(struct net_device *ndev) { … } static int ravb_wol_restore(struct net_device *ndev) { … } static int ravb_suspend(struct device *dev) { … } static int ravb_resume(struct device *dev) { … } static int ravb_runtime_suspend(struct device *dev) { … } static int ravb_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops ravb_dev_pm_ops = …; static struct platform_driver ravb_driver = …; module_platform_driver(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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