/*
 * Copyright (c) 2014-2015 Hisilicon Limited.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/syscon.h>
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_mdio.h>
#include <linux/phy.h>
#include <linux/platform_device.h>

#include "hns_dsaf_main.h"
#include "hns_dsaf_misc.h"
#include "hns_dsaf_rcb.h"

#define MAC_EN_FLAG_V           0xada0328

static const u16 mac_phy_to_speed[] = {
        [PHY_INTERFACE_MODE_MII] = MAC_SPEED_100,
        [PHY_INTERFACE_MODE_GMII] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_SGMII] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_TBI] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_RMII] = MAC_SPEED_100,
        [PHY_INTERFACE_MODE_RGMII] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_RGMII_ID] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_RGMII_RXID] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_RGMII_TXID] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_RTBI] = MAC_SPEED_1000,
        [PHY_INTERFACE_MODE_XGMII] = MAC_SPEED_10000
};

static const enum mac_mode g_mac_mode_100[] = {
        [PHY_INTERFACE_MODE_MII]        = MAC_MODE_MII_100,
        [PHY_INTERFACE_MODE_RMII]   = MAC_MODE_RMII_100
};

static const enum mac_mode g_mac_mode_1000[] = {
        [PHY_INTERFACE_MODE_GMII]   = MAC_MODE_GMII_1000,
        [PHY_INTERFACE_MODE_SGMII]  = MAC_MODE_SGMII_1000,
        [PHY_INTERFACE_MODE_TBI]        = MAC_MODE_TBI_1000,
        [PHY_INTERFACE_MODE_RGMII]  = MAC_MODE_RGMII_1000,
        [PHY_INTERFACE_MODE_RGMII_ID]   = MAC_MODE_RGMII_1000,
        [PHY_INTERFACE_MODE_RGMII_RXID] = MAC_MODE_RGMII_1000,
        [PHY_INTERFACE_MODE_RGMII_TXID] = MAC_MODE_RGMII_1000,
        [PHY_INTERFACE_MODE_RTBI]   = MAC_MODE_RTBI_1000
};

static enum mac_mode hns_get_enet_interface(const struct hns_mac_cb *mac_cb)
{
        switch (mac_cb->max_speed) {
        case MAC_SPEED_100:
                return g_mac_mode_100[mac_cb->phy_if];
        case MAC_SPEED_1000:
                return g_mac_mode_1000[mac_cb->phy_if];
        case MAC_SPEED_10000:
                return MAC_MODE_XGMII_10000;
        default:
                return MAC_MODE_MII_100;
        }
}

void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status)
{
        struct mac_driver *mac_ctrl_drv;
        int ret, sfp_prsnt;

        mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        if (mac_ctrl_drv->get_link_status)
                mac_ctrl_drv->get_link_status(mac_ctrl_drv, link_status);
        else
                *link_status = 0;

        if (mac_cb->media_type == HNAE_MEDIA_TYPE_FIBER) {
                ret = mac_cb->dsaf_dev->misc_op->get_sfp_prsnt(mac_cb,
                                                               &sfp_prsnt);
                if (!ret)
                        *link_status = *link_status && sfp_prsnt;
        }

        mac_cb->link = *link_status;
}

int hns_mac_get_port_info(struct hns_mac_cb *mac_cb,
                          u8 *auto_neg, u16 *speed, u8 *duplex)
{
        struct mac_driver *mac_ctrl_drv;
        struct mac_info    info;

        mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        if (!mac_ctrl_drv->get_info)
                return -ENODEV;

        mac_ctrl_drv->get_info(mac_ctrl_drv, &info);
        if (auto_neg)
                *auto_neg = info.auto_neg;
        if (speed)
                *speed = info.speed;
        if (duplex)
                *duplex = info.duplex;

        return 0;
}

void hns_mac_adjust_link(struct hns_mac_cb *mac_cb, int speed, int duplex)
{
        int ret;
        struct mac_driver *mac_ctrl_drv;

        mac_ctrl_drv = (struct mac_driver *)(mac_cb->priv.mac);

        mac_cb->speed = speed;
        mac_cb->half_duplex = !duplex;

        if (mac_ctrl_drv->adjust_link) {
                ret = mac_ctrl_drv->adjust_link(mac_ctrl_drv,
                        (enum mac_speed)speed, duplex);
                if (ret) {
                        dev_err(mac_cb->dev,
                                "adjust_link failed, %s mac%d ret = %#x!\n",
                                mac_cb->dsaf_dev->ae_dev.name,
                                mac_cb->mac_id, ret);
                        return;
                }
        }
}

/**
 *hns_mac_get_inner_port_num - get mac table inner port number
 *@mac_cb: mac device
 *@vmid: vm id
 *@port_num:port number
 *
 */
int hns_mac_get_inner_port_num(struct hns_mac_cb *mac_cb, u8 vmid, u8 *port_num)
{
        int q_num_per_vf, vf_num_per_port;
        int vm_queue_id;
        u8 tmp_port;

        if (mac_cb->dsaf_dev->dsaf_mode <= DSAF_MODE_ENABLE) {
                if (mac_cb->mac_id != DSAF_MAX_PORT_NUM) {
                        dev_err(mac_cb->dev,
                                "input invalid, %s mac%d vmid%d !\n",
                                mac_cb->dsaf_dev->ae_dev.name,
                                mac_cb->mac_id, vmid);
                        return -EINVAL;
                }
        } else if (mac_cb->dsaf_dev->dsaf_mode < DSAF_MODE_MAX) {
                if (mac_cb->mac_id >= DSAF_MAX_PORT_NUM) {
                        dev_err(mac_cb->dev,
                                "input invalid, %s mac%d vmid%d!\n",
                                mac_cb->dsaf_dev->ae_dev.name,
                                mac_cb->mac_id, vmid);
                        return -EINVAL;
                }
        } else {
                dev_err(mac_cb->dev, "dsaf mode invalid, %s mac%d!\n",
                        mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
                return -EINVAL;
        }

        if (vmid >= mac_cb->dsaf_dev->rcb_common[0]->max_vfn) {
                dev_err(mac_cb->dev, "input invalid, %s mac%d vmid%d !\n",
                        mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id, vmid);
                return -EINVAL;
        }

        q_num_per_vf = mac_cb->dsaf_dev->rcb_common[0]->max_q_per_vf;
        vf_num_per_port = mac_cb->dsaf_dev->rcb_common[0]->max_vfn;

        vm_queue_id = vmid * q_num_per_vf +
                        vf_num_per_port * q_num_per_vf * mac_cb->mac_id;

        switch (mac_cb->dsaf_dev->dsaf_mode) {
        case DSAF_MODE_ENABLE_FIX:
                tmp_port = 0;
                break;
        case DSAF_MODE_DISABLE_FIX:
                tmp_port = 0;
                break;
        case DSAF_MODE_ENABLE_0VM:
        case DSAF_MODE_ENABLE_8VM:
        case DSAF_MODE_ENABLE_16VM:
        case DSAF_MODE_ENABLE_32VM:
        case DSAF_MODE_ENABLE_128VM:
        case DSAF_MODE_DISABLE_2PORT_8VM:
        case DSAF_MODE_DISABLE_2PORT_16VM:
        case DSAF_MODE_DISABLE_2PORT_64VM:
        case DSAF_MODE_DISABLE_6PORT_0VM:
        case DSAF_MODE_DISABLE_6PORT_2VM:
        case DSAF_MODE_DISABLE_6PORT_4VM:
        case DSAF_MODE_DISABLE_6PORT_16VM:
                tmp_port = vm_queue_id;
                break;
        default:
                dev_err(mac_cb->dev, "dsaf mode invalid, %s mac%d!\n",
                        mac_cb->dsaf_dev->ae_dev.name, mac_cb->mac_id);
                return -EINVAL;
        }
        tmp_port += DSAF_BASE_INNER_PORT_NUM;

        *port_num = tmp_port;

        return 0;
}

/**
 *hns_mac_change_vf_addr - change vf mac address
 *@mac_cb: mac device
 *@vmid: vmid
 *@addr:mac address
 */
int hns_mac_change_vf_addr(struct hns_mac_cb *mac_cb,
                           u32 vmid, char *addr)
{
        int ret;
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        struct dsaf_drv_mac_single_dest_entry mac_entry;
        struct mac_entry_idx *old_entry;

        old_entry = &mac_cb->addr_entry_idx[vmid];
        if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
                memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
                mac_entry.in_vlan_id = old_entry->vlan_id;
                mac_entry.in_port_num = mac_cb->mac_id;
                ret = hns_mac_get_inner_port_num(mac_cb, (u8)vmid,
                                                 &mac_entry.port_num);
                if (ret)
                        return ret;

                if ((old_entry->valid != 0) &&
                    (memcmp(old_entry->addr,
                    addr, sizeof(mac_entry.addr)) != 0)) {
                        ret = hns_dsaf_del_mac_entry(dsaf_dev,
                                                     old_entry->vlan_id,
                                                     mac_cb->mac_id,
                                                     old_entry->addr);
                        if (ret)
                                return ret;
                }

                ret = hns_dsaf_set_mac_uc_entry(dsaf_dev, &mac_entry);
                if (ret)
                        return ret;
        }

        if ((mac_ctrl_drv->set_mac_addr) && (vmid == 0))
                mac_ctrl_drv->set_mac_addr(mac_cb->priv.mac, addr);

        memcpy(old_entry->addr, addr, sizeof(old_entry->addr));
        old_entry->valid = 1;
        return 0;
}

int hns_mac_add_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id,
                        const unsigned char *addr)
{
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        struct dsaf_drv_mac_single_dest_entry mac_entry;
        int ret;

        if (HNS_DSAF_IS_DEBUG(dsaf_dev))
                return -ENOSPC;

        memset(&mac_entry, 0, sizeof(mac_entry));
        memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
        mac_entry.in_port_num = mac_cb->mac_id;
        ret = hns_mac_get_inner_port_num(mac_cb, vf_id, &mac_entry.port_num);
        if (ret)
                return ret;

        return hns_dsaf_set_mac_uc_entry(dsaf_dev, &mac_entry);
}

int hns_mac_rm_uc_addr(struct hns_mac_cb *mac_cb, u8 vf_id,
                       const unsigned char *addr)
{
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        struct dsaf_drv_mac_single_dest_entry mac_entry;
        int ret;

        if (HNS_DSAF_IS_DEBUG(dsaf_dev))
                return -ENOSPC;

        memset(&mac_entry, 0, sizeof(mac_entry));
        memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
        mac_entry.in_port_num = mac_cb->mac_id;
        ret = hns_mac_get_inner_port_num(mac_cb, vf_id, &mac_entry.port_num);
        if (ret)
                return ret;

        return hns_dsaf_rm_mac_addr(dsaf_dev, &mac_entry);
}

int hns_mac_set_multi(struct hns_mac_cb *mac_cb,
                      u32 port_num, char *addr, bool enable)
{
        int ret;
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        struct dsaf_drv_mac_single_dest_entry mac_entry;

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev) && addr) {
                memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
                mac_entry.in_vlan_id = 0;/*vlan_id;*/
                mac_entry.in_port_num = mac_cb->mac_id;
                mac_entry.port_num = port_num;

                if (!enable)
                        ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
                else
                        ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
                if (ret) {
                        dev_err(dsaf_dev->dev,
                                "set mac mc port failed, %s mac%d ret = %#x!\n",
                                mac_cb->dsaf_dev->ae_dev.name,
                                mac_cb->mac_id, ret);
                        return ret;
                }
        }

        return 0;
}

int hns_mac_clr_multicast(struct hns_mac_cb *mac_cb, int vfn)
{
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        u8 port_num;
        int ret = hns_mac_get_inner_port_num(mac_cb, vfn, &port_num);

        if (ret)
                return ret;

        return hns_dsaf_clr_mac_mc_port(dsaf_dev, mac_cb->mac_id, port_num);
}

static void hns_mac_param_get(struct mac_params *param,
                              struct hns_mac_cb *mac_cb)
{
        param->vaddr = (void *)mac_cb->vaddr;
        param->mac_mode = hns_get_enet_interface(mac_cb);
        ether_addr_copy(param->addr, mac_cb->addr_entry_idx[0].addr);
        param->mac_id = mac_cb->mac_id;
        param->dev = mac_cb->dev;
}

/**
 *hns_mac_queue_config_bc_en - set broadcast rx&tx enable
 *@mac_cb: mac device
 *@queue: queue number
 *@en:enable
 *retuen 0 - success , negative --fail
 */
static int hns_mac_port_config_bc_en(struct hns_mac_cb *mac_cb,
                                     u32 port_num, u16 vlan_id, bool enable)
{
        int ret;
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        u8 addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
        struct dsaf_drv_mac_single_dest_entry mac_entry;

        /* directy return ok in debug network mode */
        if (mac_cb->mac_type == HNAE_PORT_DEBUG)
                return 0;

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev)) {
                memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
                mac_entry.in_vlan_id = vlan_id;
                mac_entry.in_port_num = mac_cb->mac_id;
                mac_entry.port_num = port_num;

                if (!enable)
                        ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
                else
                        ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
                return ret;
        }

        return 0;
}

/**
 *hns_mac_vm_config_bc_en - set broadcast rx&tx enable
 *@mac_cb: mac device
 *@vmid: vm id
 *@en:enable
 *retuen 0 - success , negative --fail
 */
int hns_mac_vm_config_bc_en(struct hns_mac_cb *mac_cb, u32 vmid, bool enable)
{
        int ret;
        struct dsaf_device *dsaf_dev = mac_cb->dsaf_dev;
        u8 port_num;
        u8 addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
        struct mac_entry_idx *uc_mac_entry;
        struct dsaf_drv_mac_single_dest_entry mac_entry;

        if (mac_cb->mac_type == HNAE_PORT_DEBUG)
                return 0;

        uc_mac_entry = &mac_cb->addr_entry_idx[vmid];

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev))  {
                memcpy(mac_entry.addr, addr, sizeof(mac_entry.addr));
                mac_entry.in_vlan_id = uc_mac_entry->vlan_id;
                mac_entry.in_port_num = mac_cb->mac_id;
                ret = hns_mac_get_inner_port_num(mac_cb, vmid, &port_num);
                if (ret)
                        return ret;
                mac_entry.port_num = port_num;

                if (!enable)
                        ret = hns_dsaf_del_mac_mc_port(dsaf_dev, &mac_entry);
                else
                        ret = hns_dsaf_add_mac_mc_port(dsaf_dev, &mac_entry);
                return ret;
        }

        return 0;
}

void hns_mac_reset(struct hns_mac_cb *mac_cb)
{
        struct mac_driver *drv = hns_mac_get_drv(mac_cb);
        bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);

        drv->mac_init(drv);

        if (drv->config_max_frame_length)
                drv->config_max_frame_length(drv, mac_cb->max_frm);

        if (drv->set_tx_auto_pause_frames)
                drv->set_tx_auto_pause_frames(drv, mac_cb->tx_pause_frm_time);

        if (drv->set_an_mode)
                drv->set_an_mode(drv, 1);

        if (drv->mac_pausefrm_cfg) {
                if (mac_cb->mac_type == HNAE_PORT_DEBUG)
                        drv->mac_pausefrm_cfg(drv, !is_ver1, !is_ver1);
                else /* mac rx must disable, dsaf pfc close instead of it*/
                        drv->mac_pausefrm_cfg(drv, 0, 1);
        }
}

int hns_mac_set_mtu(struct hns_mac_cb *mac_cb, u32 new_mtu, u32 buf_size)
{
        struct mac_driver *drv = hns_mac_get_drv(mac_cb);
        u32 new_frm = new_mtu + ETH_HLEN + ETH_FCS_LEN + VLAN_HLEN;
        u32 max_frm = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver) ?
                        MAC_MAX_MTU : MAC_MAX_MTU_V2;

        if (mac_cb->mac_type == HNAE_PORT_DEBUG)
                max_frm = MAC_MAX_MTU_DBG;

        if (new_frm > HNS_RCB_RING_MAX_BD_PER_PKT * buf_size)
                return -EINVAL;

        if (!drv->config_max_frame_length)
                return -ECHILD;

        /* adjust max frame to be at least the size of a standard frame */
        if (new_frm < (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN))
                new_frm = (ETH_FRAME_LEN + ETH_FCS_LEN + VLAN_HLEN);

        drv->config_max_frame_length(drv, new_frm);

        mac_cb->max_frm = new_frm;

        return 0;
}

void hns_mac_start(struct hns_mac_cb *mac_cb)
{
        struct mac_driver *mac_drv = hns_mac_get_drv(mac_cb);

        /* for virt */
        if (mac_drv->mac_en_flg == MAC_EN_FLAG_V) {
                /*plus 1 when the virtual mac has been enabled */
                mac_drv->virt_dev_num += 1;
                return;
        }

        if (mac_drv->mac_enable) {
                mac_drv->mac_enable(mac_cb->priv.mac, MAC_COMM_MODE_RX_AND_TX);
                mac_drv->mac_en_flg = MAC_EN_FLAG_V;
        }
}

void hns_mac_stop(struct hns_mac_cb *mac_cb)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        /*modified for virtualization */
        if (mac_ctrl_drv->virt_dev_num > 0) {
                mac_ctrl_drv->virt_dev_num -= 1;
                if (mac_ctrl_drv->virt_dev_num > 0)
                        return;
        }

        if (mac_ctrl_drv->mac_disable)
                mac_ctrl_drv->mac_disable(mac_cb->priv.mac,
                        MAC_COMM_MODE_RX_AND_TX);

        mac_ctrl_drv->mac_en_flg = 0;
        mac_cb->link = 0;
        mac_cb->dsaf_dev->misc_op->cpld_reset_led(mac_cb);
}

/**
 * hns_mac_get_autoneg - get auto autonegotiation
 * @mac_cb: mac control block
 * @enable: enable or not
 * retuen 0 - success , negative --fail
 */
void hns_mac_get_autoneg(struct hns_mac_cb *mac_cb, u32 *auto_neg)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        if (mac_ctrl_drv->autoneg_stat)
                mac_ctrl_drv->autoneg_stat(mac_ctrl_drv, auto_neg);
        else
                *auto_neg = 0;
}

/**
 * hns_mac_get_pauseparam - set rx & tx pause parameter
 * @mac_cb: mac control block
 * @rx_en: rx enable status
 * @tx_en: tx enable status
 * retuen 0 - success , negative --fail
 */
void hns_mac_get_pauseparam(struct hns_mac_cb *mac_cb, u32 *rx_en, u32 *tx_en)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        if (mac_ctrl_drv->get_pause_enable) {
                mac_ctrl_drv->get_pause_enable(mac_ctrl_drv, rx_en, tx_en);
        } else {
                *rx_en = 0;
                *tx_en = 0;
        }
}

/**
 * hns_mac_set_autoneg - set auto autonegotiation
 * @mac_cb: mac control block
 * @enable: enable or not
 * retuen 0 - success , negative --fail
 */
int hns_mac_set_autoneg(struct hns_mac_cb *mac_cb, u8 enable)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        if (mac_cb->phy_if == PHY_INTERFACE_MODE_XGMII && enable) {
                dev_err(mac_cb->dev, "enabling autoneg is not allowed!\n");
                return -ENOTSUPP;
        }

        if (mac_ctrl_drv->set_an_mode)
                mac_ctrl_drv->set_an_mode(mac_ctrl_drv, enable);

        return 0;
}

/**
 * hns_mac_set_autoneg - set rx & tx pause parameter
 * @mac_cb: mac control block
 * @rx_en: rx enable or not
 * @tx_en: tx enable or not
 * return 0 - success , negative --fail
 */
int hns_mac_set_pauseparam(struct hns_mac_cb *mac_cb, u32 rx_en, u32 tx_en)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);
        bool is_ver1 = AE_IS_VER1(mac_cb->dsaf_dev->dsaf_ver);

        if (mac_cb->mac_type == HNAE_PORT_DEBUG) {
                if (is_ver1 && (tx_en || rx_en)) {
                        dev_err(mac_cb->dev, "macv1 can't enable tx/rx_pause!\n");
                        return -EINVAL;
                }
        }

        if (mac_ctrl_drv->mac_pausefrm_cfg)
                mac_ctrl_drv->mac_pausefrm_cfg(mac_ctrl_drv, rx_en, tx_en);

        return 0;
}

/**
 * hns_mac_init_ex - mac init
 * @mac_cb: mac control block
 * retuen 0 - success , negative --fail
 */
static int hns_mac_init_ex(struct hns_mac_cb *mac_cb)
{
        int ret;
        struct mac_params param;
        struct mac_driver *drv;

        hns_dsaf_fix_mac_mode(mac_cb);

        memset(&param, 0, sizeof(struct mac_params));
        hns_mac_param_get(&param, mac_cb);

        if (MAC_SPEED_FROM_MODE(param.mac_mode) < MAC_SPEED_10000)
                drv = (struct mac_driver *)hns_gmac_config(mac_cb, &param);
        else
                drv = (struct mac_driver *)hns_xgmac_config(mac_cb, &param);

        if (!drv)
                return -ENOMEM;

        mac_cb->priv.mac = (void *)drv;
        hns_mac_reset(mac_cb);

        hns_mac_adjust_link(mac_cb, mac_cb->speed, !mac_cb->half_duplex);

        ret = hns_mac_port_config_bc_en(mac_cb, mac_cb->mac_id, 0, true);
        if (ret)
                goto free_mac_drv;

        return 0;

free_mac_drv:
        drv->mac_free(mac_cb->priv.mac);
        mac_cb->priv.mac = NULL;

        return ret;
}

static int
hns_mac_phy_parse_addr(struct device *dev, struct fwnode_handle *fwnode)
{
        u32 addr;
        int ret;

        ret = fwnode_property_read_u32(fwnode, "phy-addr", &addr);
        if (ret) {
                dev_err(dev, "has invalid PHY address ret:%d\n", ret);
                return ret;
        }

        if (addr >= PHY_MAX_ADDR) {
                dev_err(dev, "PHY address %i is too large\n", addr);
                return -EINVAL;
        }

        return addr;
}

static int
hns_mac_register_phydev(struct mii_bus *mdio, struct hns_mac_cb *mac_cb,
                        u32 addr)
{
        struct phy_device *phy;
        const char *phy_type;
        bool is_c45;
        int rc;

        rc = fwnode_property_read_string(mac_cb->fw_port,
                                         "phy-mode", &phy_type);
        if (rc < 0)
                return rc;

        if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_XGMII)))
                is_c45 = 1;
        else if (!strcmp(phy_type, phy_modes(PHY_INTERFACE_MODE_SGMII)))
                is_c45 = 0;
        else
                return -ENODATA;

        phy = get_phy_device(mdio, addr, is_c45);
        if (!phy || IS_ERR(phy))
                return -EIO;

        phy->irq = mdio->irq[addr];

        /* All data is now stored in the phy struct;
         * register it
         */
        rc = phy_device_register(phy);
        if (rc) {
                phy_device_free(phy);
                dev_err(&mdio->dev, "registered phy fail at address %i\n",
                        addr);
                return -ENODEV;
        }

        mac_cb->phy_dev = phy;

        dev_dbg(&mdio->dev, "registered phy at address %i\n", addr);

        return 0;
}

static int hns_mac_register_phy(struct hns_mac_cb *mac_cb)
{
        struct acpi_reference_args args;
        struct platform_device *pdev;
        struct mii_bus *mii_bus;
        int rc;
        int addr;

        /* Loop over the child nodes and register a phy_device for each one */
        if (!to_acpi_device_node(mac_cb->fw_port))
                return -ENODEV;

        rc = acpi_node_get_property_reference(
                        mac_cb->fw_port, "mdio-node", 0, &args);
        if (rc)
                return rc;

        addr = hns_mac_phy_parse_addr(mac_cb->dev, mac_cb->fw_port);
        if (addr < 0)
                return addr;

        /* dev address in adev */
        pdev = hns_dsaf_find_platform_device(acpi_fwnode_handle(args.adev));
        if (!pdev) {
                dev_err(mac_cb->dev, "mac%d mdio pdev is NULL\n",
                        mac_cb->mac_id);
                return  -EINVAL;
        }

        mii_bus = platform_get_drvdata(pdev);
        if (!mii_bus) {
                dev_err(mac_cb->dev,
                        "mac%d mdio is NULL, dsaf will probe again later\n",
                        mac_cb->mac_id);
                return -EPROBE_DEFER;
        }

        rc = hns_mac_register_phydev(mii_bus, mac_cb, addr);
        if (!rc)
                dev_dbg(mac_cb->dev, "mac%d register phy addr:%d\n",
                        mac_cb->mac_id, addr);

        return rc;
}

#define MAC_MEDIA_TYPE_MAX_LEN          16

static const struct {
        enum hnae_media_type value;
        const char *name;
} media_type_defs[] = {
        {HNAE_MEDIA_TYPE_UNKNOWN,       "unknown" },
        {HNAE_MEDIA_TYPE_FIBER,         "fiber" },
        {HNAE_MEDIA_TYPE_COPPER,        "copper" },
        {HNAE_MEDIA_TYPE_BACKPLANE,     "backplane" },
};

/**
 *hns_mac_get_info  - get mac information from device node
 *@mac_cb: mac device
 *@np:device node
 * return: 0 --success, negative --fail
 */
static int hns_mac_get_info(struct hns_mac_cb *mac_cb)
{
        struct device_node *np;
        struct regmap *syscon;
        struct of_phandle_args cpld_args;
        const char *media_type;
        u32 i;
        u32 ret;

        mac_cb->link = false;
        mac_cb->half_duplex = false;
        mac_cb->media_type = HNAE_MEDIA_TYPE_UNKNOWN;
        mac_cb->speed = mac_phy_to_speed[mac_cb->phy_if];
        mac_cb->max_speed = mac_cb->speed;

        if (mac_cb->phy_if == PHY_INTERFACE_MODE_SGMII) {
                mac_cb->if_support = MAC_GMAC_SUPPORTED;
                mac_cb->if_support |= SUPPORTED_1000baseT_Full;
        } else if (mac_cb->phy_if == PHY_INTERFACE_MODE_XGMII) {
                mac_cb->if_support = SUPPORTED_10000baseR_FEC;
                mac_cb->if_support |= SUPPORTED_10000baseKR_Full;
        }

        mac_cb->max_frm = MAC_DEFAULT_MTU;
        mac_cb->tx_pause_frm_time = MAC_DEFAULT_PAUSE_TIME;
        mac_cb->port_rst_off = mac_cb->mac_id;
        mac_cb->port_mode_off = 0;

        /* if the dsaf node doesn't contain a port subnode, get phy-handle
         * from dsaf node
         */
        if (!mac_cb->fw_port) {
                np = of_parse_phandle(mac_cb->dev->of_node, "phy-handle",
                                      mac_cb->mac_id);
                mac_cb->phy_dev = of_phy_find_device(np);
                if (mac_cb->phy_dev) {
                        /* refcount is held by of_phy_find_device()
                         * if the phy_dev is found
                         */
                        put_device(&mac_cb->phy_dev->mdio.dev);

                        dev_dbg(mac_cb->dev, "mac%d phy_node: %s\n",
                                mac_cb->mac_id, np->name);
                }
                of_node_put(np);

                return 0;
        }

        if (is_of_node(mac_cb->fw_port)) {
                /* parse property from port subnode in dsaf */
                np = of_parse_phandle(to_of_node(mac_cb->fw_port),
                                      "phy-handle", 0);
                mac_cb->phy_dev = of_phy_find_device(np);
                if (mac_cb->phy_dev) {
                        /* refcount is held by of_phy_find_device()
                         * if the phy_dev is found
                         */
                        put_device(&mac_cb->phy_dev->mdio.dev);
                        dev_dbg(mac_cb->dev, "mac%d phy_node: %s\n",
                                mac_cb->mac_id, np->name);
                }
                of_node_put(np);

                np = of_parse_phandle(to_of_node(mac_cb->fw_port),
                                      "serdes-syscon", 0);
                syscon = syscon_node_to_regmap(np);
                of_node_put(np);
                if (IS_ERR_OR_NULL(syscon)) {
                        dev_err(mac_cb->dev, "serdes-syscon is needed!\n");
                        return -EINVAL;
                }
                mac_cb->serdes_ctrl = syscon;

                ret = fwnode_property_read_u32(mac_cb->fw_port,
                                               "port-rst-offset",
                                               &mac_cb->port_rst_off);
                if (ret) {
                        dev_dbg(mac_cb->dev,
                                "mac%d port-rst-offset not found, use default value.\n",
                                mac_cb->mac_id);
                }

                ret = fwnode_property_read_u32(mac_cb->fw_port,
                                               "port-mode-offset",
                                               &mac_cb->port_mode_off);
                if (ret) {
                        dev_dbg(mac_cb->dev,
                                "mac%d port-mode-offset not found, use default value.\n",
                                mac_cb->mac_id);
                }

                ret = of_parse_phandle_with_fixed_args(
                        to_of_node(mac_cb->fw_port), "cpld-syscon", 1, 0,
                        &cpld_args);
                if (ret) {
                        dev_dbg(mac_cb->dev, "mac%d no cpld-syscon found.\n",
                                mac_cb->mac_id);
                        mac_cb->cpld_ctrl = NULL;
                } else {
                        syscon = syscon_node_to_regmap(cpld_args.np);
                        if (IS_ERR_OR_NULL(syscon)) {
                                dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
                                mac_cb->cpld_ctrl = NULL;
                        } else {
                                mac_cb->cpld_ctrl = syscon;
                                mac_cb->cpld_ctrl_reg = cpld_args.args[0];
                        }
                }
        } else if (is_acpi_node(mac_cb->fw_port)) {
                ret = hns_mac_register_phy(mac_cb);
                /*
                 * Mac can work well if there is phy or not.If the port don't
                 * connect with phy, the return value will be ignored. Only
                 * when there is phy but can't find mdio bus, the return value
                 * will be handled.
                 */
                if (ret == -EPROBE_DEFER)
                        return ret;
        } else {
                dev_err(mac_cb->dev, "mac%d cannot find phy node\n",
                        mac_cb->mac_id);
        }

        if (!fwnode_property_read_string(mac_cb->fw_port, "media-type",
                                         &media_type)) {
                for (i = 0; i < ARRAY_SIZE(media_type_defs); i++) {
                        if (!strncmp(media_type_defs[i].name, media_type,
                                     MAC_MEDIA_TYPE_MAX_LEN)) {
                                mac_cb->media_type = media_type_defs[i].value;
                                break;
                        }
                }
        }

        if (fwnode_property_read_u8_array(mac_cb->fw_port, "mc-mac-mask",
                                          mac_cb->mc_mask, ETH_ALEN)) {
                dev_warn(mac_cb->dev,
                         "no mc-mac-mask property, set to default value.\n");
                eth_broadcast_addr(mac_cb->mc_mask);
        }

        return 0;
}

/**
 * hns_mac_get_mode - get mac mode
 * @phy_if: phy interface
 * retuen 0 - gmac, 1 - xgmac , negative --fail
 */
static int hns_mac_get_mode(phy_interface_t phy_if)
{
        switch (phy_if) {
        case PHY_INTERFACE_MODE_SGMII:
                return MAC_GMAC_IDX;
        case PHY_INTERFACE_MODE_XGMII:
                return MAC_XGMAC_IDX;
        default:
                return -EINVAL;
        }
}

u8 __iomem *hns_mac_get_vaddr(struct dsaf_device *dsaf_dev,
                              struct hns_mac_cb *mac_cb, u32 mac_mode_idx)
{
        u8 __iomem *base = dsaf_dev->io_base;
        int mac_id = mac_cb->mac_id;

        if (mac_cb->mac_type == HNAE_PORT_SERVICE)
                return base + 0x40000 + mac_id * 0x4000 -
                                mac_mode_idx * 0x20000;
        else
                return dsaf_dev->ppe_base + 0x1000;
}

/**
 * hns_mac_get_cfg - get mac cfg from dtb or acpi table
 * @dsaf_dev: dsa fabric device struct pointer
 * @mac_cb: mac control block
 * return 0 - success , negative --fail
 */
int hns_mac_get_cfg(struct dsaf_device *dsaf_dev, struct hns_mac_cb *mac_cb)
{
        int ret;
        u32 mac_mode_idx;

        mac_cb->dsaf_dev = dsaf_dev;
        mac_cb->dev = dsaf_dev->dev;

        mac_cb->sys_ctl_vaddr = dsaf_dev->sc_base;
        mac_cb->serdes_vaddr = dsaf_dev->sds_base;

        mac_cb->sfp_prsnt = 0;
        mac_cb->txpkt_for_led = 0;
        mac_cb->rxpkt_for_led = 0;

        if (!HNS_DSAF_IS_DEBUG(dsaf_dev))
                mac_cb->mac_type = HNAE_PORT_SERVICE;
        else
                mac_cb->mac_type = HNAE_PORT_DEBUG;

        mac_cb->phy_if = dsaf_dev->misc_op->get_phy_if(mac_cb);

        ret = hns_mac_get_mode(mac_cb->phy_if);
        if (ret < 0) {
                dev_err(dsaf_dev->dev,
                        "hns_mac_get_mode failed, mac%d ret = %#x!\n",
                        mac_cb->mac_id, ret);
                return ret;
        }
        mac_mode_idx = (u32)ret;

        ret  = hns_mac_get_info(mac_cb);
        if (ret)
                return ret;

        mac_cb->dsaf_dev->misc_op->cpld_reset_led(mac_cb);
        mac_cb->vaddr = hns_mac_get_vaddr(dsaf_dev, mac_cb, mac_mode_idx);

        return 0;
}

static int hns_mac_get_max_port_num(struct dsaf_device *dsaf_dev)
{
        if (HNS_DSAF_IS_DEBUG(dsaf_dev))
                return 1;
        else

                return  DSAF_MAX_PORT_NUM;
}

/**
 * hns_mac_init - init mac
 * @dsaf_dev: dsa fabric device struct pointer
 * return 0 - success , negative --fail
 */
int hns_mac_init(struct dsaf_device *dsaf_dev)
{
        bool found = false;
        int ret;
        u32 port_id;
        int max_port_num = hns_mac_get_max_port_num(dsaf_dev);
        struct hns_mac_cb *mac_cb;
        struct fwnode_handle *child;

        device_for_each_child_node(dsaf_dev->dev, child) {
                ret = fwnode_property_read_u32(child, "reg", &port_id);
                if (ret) {
                        dev_err(dsaf_dev->dev,
                                "get reg fail, ret=%d!\n", ret);
                        return ret;
                }
                if (port_id >= max_port_num) {
                        dev_err(dsaf_dev->dev,
                                "reg(%u) out of range!\n", port_id);
                        return -EINVAL;
                }
                mac_cb = devm_kzalloc(dsaf_dev->dev, sizeof(*mac_cb),
                                      GFP_KERNEL);
                if (!mac_cb)
                        return -ENOMEM;
                mac_cb->fw_port = child;
                mac_cb->mac_id = (u8)port_id;
                dsaf_dev->mac_cb[port_id] = mac_cb;
                found = true;
        }

        /* if don't get any port subnode from dsaf node
         * will init all port then, this is compatible with the old dts
         */
        if (!found) {
                for (port_id = 0; port_id < max_port_num; port_id++) {
                        mac_cb = devm_kzalloc(dsaf_dev->dev, sizeof(*mac_cb),
                                              GFP_KERNEL);
                        if (!mac_cb)
                                return -ENOMEM;

                        mac_cb->mac_id = port_id;
                        dsaf_dev->mac_cb[port_id] = mac_cb;
                }
        }

        /* init mac_cb for all port */
        for (port_id = 0; port_id < max_port_num; port_id++) {
                mac_cb = dsaf_dev->mac_cb[port_id];
                if (!mac_cb)
                        continue;

                ret = hns_mac_get_cfg(dsaf_dev, mac_cb);
                if (ret)
                        return ret;

                ret = hns_mac_init_ex(mac_cb);
                if (ret)
                        return ret;
        }

        return 0;
}

void hns_mac_uninit(struct dsaf_device *dsaf_dev)
{
        int i;
        int max_port_num = hns_mac_get_max_port_num(dsaf_dev);

        for (i = 0; i < max_port_num; i++) {
                dsaf_dev->misc_op->cpld_reset_led(dsaf_dev->mac_cb[i]);
                dsaf_dev->mac_cb[i] = NULL;
        }
}

int hns_mac_config_mac_loopback(struct hns_mac_cb *mac_cb,
                                enum hnae_loop loop, int en)
{
        int ret;
        struct mac_driver *drv = hns_mac_get_drv(mac_cb);

        if (drv->config_loopback)
                ret = drv->config_loopback(drv, loop, en);
        else
                ret = -ENOTSUPP;

        return ret;
}

void hns_mac_update_stats(struct hns_mac_cb *mac_cb)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        mac_ctrl_drv->update_stats(mac_ctrl_drv);
}

void hns_mac_get_stats(struct hns_mac_cb *mac_cb, u64 *data)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        mac_ctrl_drv->get_ethtool_stats(mac_ctrl_drv, data);
}

void hns_mac_get_strings(struct hns_mac_cb *mac_cb,
                         int stringset, u8 *data)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        mac_ctrl_drv->get_strings(stringset, data);
}

int hns_mac_get_sset_count(struct hns_mac_cb *mac_cb, int stringset)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        return mac_ctrl_drv->get_sset_count(stringset);
}

void hns_mac_set_promisc(struct hns_mac_cb *mac_cb, u8 en)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        hns_dsaf_set_promisc_tcam(mac_cb->dsaf_dev, mac_cb->mac_id, !!en);

        if (mac_ctrl_drv->set_promiscuous)
                mac_ctrl_drv->set_promiscuous(mac_ctrl_drv, en);
}

int hns_mac_get_regs_count(struct hns_mac_cb *mac_cb)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        return mac_ctrl_drv->get_regs_count();
}

void hns_mac_get_regs(struct hns_mac_cb *mac_cb, void *data)
{
        struct mac_driver *mac_ctrl_drv = hns_mac_get_drv(mac_cb);

        mac_ctrl_drv->get_regs(mac_ctrl_drv, data);
}

void hns_set_led_opt(struct hns_mac_cb *mac_cb)
{
        int nic_data = 0;
        int txpkts, rxpkts;

        txpkts = mac_cb->txpkt_for_led - mac_cb->hw_stats.tx_good_pkts;
        rxpkts = mac_cb->rxpkt_for_led - mac_cb->hw_stats.rx_good_pkts;
        if (txpkts || rxpkts)
                nic_data = 1;
        else
                nic_data = 0;
        mac_cb->txpkt_for_led = mac_cb->hw_stats.tx_good_pkts;
        mac_cb->rxpkt_for_led = mac_cb->hw_stats.rx_good_pkts;
        mac_cb->dsaf_dev->misc_op->cpld_set_led(mac_cb, (int)mac_cb->link,
                         mac_cb->speed, nic_data);
}

int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
                        enum hnae_led_state status)
{
        if (!mac_cb || !mac_cb->cpld_ctrl)
                return 0;

        return mac_cb->dsaf_dev->misc_op->cpld_set_led_id(mac_cb, status);
}