text: /*
   * 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/delay.h>
  #include <linux/of_mdio.h>
  #include "hns_dsaf_main.h"
  #include "hns_dsaf_mac.h"
  #include "hns_dsaf_gmac.h"
  
  static const struct mac_stats_string g_gmac_stats_string[] = {
  	{"gmac_rx_octets_total_ok", MAC_STATS_FIELD_OFF(rx_good_bytes)},
  	{"gmac_rx_octets_bad", MAC_STATS_FIELD_OFF(rx_bad_bytes)},
  	{"gmac_rx_uc_pkts", MAC_STATS_FIELD_OFF(rx_uc_pkts)},
  	{"gamc_rx_mc_pkts", MAC_STATS_FIELD_OFF(rx_mc_pkts)},
  	{"gmac_rx_bc_pkts", MAC_STATS_FIELD_OFF(rx_bc_pkts)},
  	{"gmac_rx_pkts_64octets", MAC_STATS_FIELD_OFF(rx_64bytes)},
  	{"gmac_rx_pkts_65to127", MAC_STATS_FIELD_OFF(rx_65to127)},
  	{"gmac_rx_pkts_128to255", MAC_STATS_FIELD_OFF(rx_128to255)},
  	{"gmac_rx_pkts_256to511", MAC_STATS_FIELD_OFF(rx_256to511)},
  	{"gmac_rx_pkts_512to1023", MAC_STATS_FIELD_OFF(rx_512to1023)},
  	{"gmac_rx_pkts_1024to1518", MAC_STATS_FIELD_OFF(rx_1024to1518)},
  	{"gmac_rx_pkts_1519tomax", MAC_STATS_FIELD_OFF(rx_1519tomax)},
  	{"gmac_rx_fcs_errors", MAC_STATS_FIELD_OFF(rx_fcs_err)},
  	{"gmac_rx_tagged", MAC_STATS_FIELD_OFF(rx_vlan_pkts)},
  	{"gmac_rx_data_err", MAC_STATS_FIELD_OFF(rx_data_err)},
  	{"gmac_rx_align_errors", MAC_STATS_FIELD_OFF(rx_align_err)},
  	{"gmac_rx_long_errors", MAC_STATS_FIELD_OFF(rx_oversize)},
  	{"gmac_rx_jabber_errors", MAC_STATS_FIELD_OFF(rx_jabber_err)},
  	{"gmac_rx_pause_maccontrol", MAC_STATS_FIELD_OFF(rx_pfc_tc0)},
  	{"gmac_rx_unknown_maccontrol", MAC_STATS_FIELD_OFF(rx_unknown_ctrl)},
  	{"gmac_rx_very_long_err", MAC_STATS_FIELD_OFF(rx_long_err)},
  	{"gmac_rx_runt_err", MAC_STATS_FIELD_OFF(rx_minto64)},
  	{"gmac_rx_short_err", MAC_STATS_FIELD_OFF(rx_under_min)},
  	{"gmac_rx_filt_pkt", MAC_STATS_FIELD_OFF(rx_filter_bytes)},
  	{"gmac_rx_octets_total_filt", MAC_STATS_FIELD_OFF(rx_filter_pkts)},
  	{"gmac_rx_overrun_cnt", MAC_STATS_FIELD_OFF(rx_fifo_overrun_err)},
  	{"gmac_rx_length_err", MAC_STATS_FIELD_OFF(rx_len_err)},
  	{"gmac_rx_fail_comma", MAC_STATS_FIELD_OFF(rx_comma_err)},
  
  	{"gmac_tx_octets_ok", MAC_STATS_FIELD_OFF(tx_good_bytes)},
  	{"gmac_tx_octets_bad", MAC_STATS_FIELD_OFF(tx_bad_bytes)},
  	{"gmac_tx_uc_pkts", MAC_STATS_FIELD_OFF(tx_uc_pkts)},
  	{"gmac_tx_mc_pkts", MAC_STATS_FIELD_OFF(tx_mc_pkts)},
  	{"gmac_tx_bc_pkts", MAC_STATS_FIELD_OFF(tx_bc_pkts)},
  	{"gmac_tx_pkts_64octets", MAC_STATS_FIELD_OFF(tx_64bytes)},
  	{"gmac_tx_pkts_65to127", MAC_STATS_FIELD_OFF(tx_65to127)},
  	{"gmac_tx_pkts_128to255", MAC_STATS_FIELD_OFF(tx_128to255)},
  	{"gmac_tx_pkts_256to511", MAC_STATS_FIELD_OFF(tx_256to511)},
  	{"gmac_tx_pkts_512to1023", MAC_STATS_FIELD_OFF(tx_512to1023)},
  	{"gmac_tx_pkts_1024to1518", MAC_STATS_FIELD_OFF(tx_1024to1518)},
  	{"gmac_tx_pkts_1519tomax", MAC_STATS_FIELD_OFF(tx_1519tomax)},
  	{"gmac_tx_excessive_length_drop", MAC_STATS_FIELD_OFF(tx_jabber_err)},
  	{"gmac_tx_underrun", MAC_STATS_FIELD_OFF(tx_underrun_err)},
  	{"gmac_tx_tagged", MAC_STATS_FIELD_OFF(tx_vlan)},
  	{"gmac_tx_crc_error", MAC_STATS_FIELD_OFF(tx_crc_err)},
  	{"gmac_tx_pause_frames", MAC_STATS_FIELD_OFF(tx_pfc_tc0)}
  };
  
  static void hns_gmac_enable(void *mac_drv, enum mac_commom_mode mode)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	/*enable GE rX/tX */
  	if ((mode == MAC_COMM_MODE_TX) || (mode == MAC_COMM_MODE_RX_AND_TX))
  		dsaf_set_dev_bit(drv, GMAC_PORT_EN_REG, GMAC_PORT_TX_EN_B, 1);
  
  	if ((mode == MAC_COMM_MODE_RX) || (mode == MAC_COMM_MODE_RX_AND_TX))
  		dsaf_set_dev_bit(drv, GMAC_PORT_EN_REG, GMAC_PORT_RX_EN_B, 1);
  }
  
  static void hns_gmac_disable(void *mac_drv, enum mac_commom_mode mode)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	/*disable GE rX/tX */
  	if ((mode == MAC_COMM_MODE_TX) || (mode == MAC_COMM_MODE_RX_AND_TX))
  		dsaf_set_dev_bit(drv, GMAC_PORT_EN_REG, GMAC_PORT_TX_EN_B, 0);
  
  	if ((mode == MAC_COMM_MODE_RX) || (mode == MAC_COMM_MODE_RX_AND_TX))
  		dsaf_set_dev_bit(drv, GMAC_PORT_EN_REG, GMAC_PORT_RX_EN_B, 0);
  }
  
  /**
  *hns_gmac_get_en - get port enable
  *@mac_drv:mac device
  *@rx:rx enable
  *@tx:tx enable
  */
  static void hns_gmac_get_en(void *mac_drv, u32 *rx, u32 *tx)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  	u32 porten;
  
  	porten = dsaf_read_dev(drv, GMAC_PORT_EN_REG);
  	*tx = dsaf_get_bit(porten, GMAC_PORT_TX_EN_B);
  	*rx = dsaf_get_bit(porten, GMAC_PORT_RX_EN_B);
  }
  
  static void hns_gmac_free(void *mac_drv)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  	struct dsaf_device *dsaf_dev
  		= (struct dsaf_device *)dev_get_drvdata(drv->dev);
  
  	u32 mac_id = drv->mac_id;
  
  	hns_dsaf_ge_srst_by_port(dsaf_dev, mac_id, 0);
  }
  
  static void hns_gmac_set_tx_auto_pause_frames(void *mac_drv, u16 newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_field(drv, GMAC_FC_TX_TIMER_REG, GMAC_FC_TX_TIMER_M,
  			   GMAC_FC_TX_TIMER_S, newval);
  }
  
  static void hns_gmac_get_tx_auto_pause_frames(void *mac_drv, u16 *newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*newval = dsaf_get_dev_field(drv, GMAC_FC_TX_TIMER_REG,
  				     GMAC_FC_TX_TIMER_M, GMAC_FC_TX_TIMER_S);
  }
  
  static void hns_gmac_set_rx_auto_pause_frames(void *mac_drv, u32 newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_bit(drv, GMAC_PAUSE_EN_REG,
  			 GMAC_PAUSE_EN_RX_FDFC_B, !!newval);
  }
  
  static void hns_gmac_config_max_frame_length(void *mac_drv, u16 newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_field(drv, GMAC_MAX_FRM_SIZE_REG, GMAC_MAX_FRM_SIZE_M,
  			   GMAC_MAX_FRM_SIZE_S, newval);
  
  	dsaf_set_dev_field(drv, GAMC_RX_MAX_FRAME, GMAC_MAX_FRM_SIZE_M,
  			   GMAC_MAX_FRM_SIZE_S, newval);
  }
  
  static void hns_gmac_config_an_mode(void *mac_drv, u8 newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_bit(drv, GMAC_TRANSMIT_CONTROL_REG,
  			 GMAC_TX_AN_EN_B, !!newval);
  }
  
  static void hns_gmac_tx_loop_pkt_dis(void *mac_drv)
  {
  	u32 tx_loop_pkt_pri;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	tx_loop_pkt_pri = dsaf_read_dev(drv, GMAC_TX_LOOP_PKT_PRI_REG);
  	dsaf_set_bit(tx_loop_pkt_pri, GMAC_TX_LOOP_PKT_EN_B, 1);
  	dsaf_set_bit(tx_loop_pkt_pri, GMAC_TX_LOOP_PKT_HIG_PRI_B, 0);
  	dsaf_write_dev(drv, GMAC_TX_LOOP_PKT_PRI_REG, tx_loop_pkt_pri);
  }
  
  static void hns_gmac_set_duplex_type(void *mac_drv, u8 newval)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_bit(drv, GMAC_DUPLEX_TYPE_REG,
  			 GMAC_DUPLEX_TYPE_B, !!newval);
  }
  
  static void hns_gmac_get_duplex_type(void *mac_drv,
  				     enum hns_gmac_duplex_mdoe *duplex_mode)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*duplex_mode = (enum hns_gmac_duplex_mdoe)dsaf_get_dev_bit(
  		drv, GMAC_DUPLEX_TYPE_REG, GMAC_DUPLEX_TYPE_B);
  }
  
  static void hns_gmac_get_port_mode(void *mac_drv, enum hns_port_mode *port_mode)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*port_mode = (enum hns_port_mode)dsaf_get_dev_field(
  		drv, GMAC_PORT_MODE_REG, GMAC_PORT_MODE_M, GMAC_PORT_MODE_S);
  }
  
  static void hns_gmac_port_mode_get(void *mac_drv,
  				   struct hns_gmac_port_mode_cfg *port_mode)
  {
  	u32 tx_ctrl;
  	u32 recv_ctrl;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	port_mode->port_mode = (enum hns_port_mode)dsaf_get_dev_field(
  		drv, GMAC_PORT_MODE_REG, GMAC_PORT_MODE_M, GMAC_PORT_MODE_S);
  
  	tx_ctrl = dsaf_read_dev(drv, GMAC_TRANSMIT_CONTROL_REG);
  	recv_ctrl = dsaf_read_dev(drv, GMAC_RECV_CONTROL_REG);
  
  	port_mode->max_frm_size =
  		dsaf_get_dev_field(drv, GMAC_MAX_FRM_SIZE_REG,
  				   GMAC_MAX_FRM_SIZE_M, GMAC_MAX_FRM_SIZE_S);
  	port_mode->short_runts_thr =
  		dsaf_get_dev_field(drv, GMAC_SHORT_RUNTS_THR_REG,
  				   GMAC_SHORT_RUNTS_THR_M,
  				   GMAC_SHORT_RUNTS_THR_S);
  
  	port_mode->pad_enable = dsaf_get_bit(tx_ctrl, GMAC_TX_PAD_EN_B);
  	port_mode->crc_add = dsaf_get_bit(tx_ctrl, GMAC_TX_CRC_ADD_B);
  	port_mode->an_enable = dsaf_get_bit(tx_ctrl, GMAC_TX_AN_EN_B);
  
  	port_mode->runt_pkt_en =
  		dsaf_get_bit(recv_ctrl, GMAC_RECV_CTRL_RUNT_PKT_EN_B);
  	port_mode->strip_pad_en =
  		dsaf_get_bit(recv_ctrl, GMAC_RECV_CTRL_STRIP_PAD_EN_B);
  }
  
  static void hns_gmac_pause_frm_cfg(void *mac_drv, u32 rx_pause_en,
  				   u32 tx_pause_en)
  {
  	u32 pause_en;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	pause_en = dsaf_read_dev(drv, GMAC_PAUSE_EN_REG);
  	dsaf_set_bit(pause_en, GMAC_PAUSE_EN_RX_FDFC_B, !!rx_pause_en);
  	dsaf_set_bit(pause_en, GMAC_PAUSE_EN_TX_FDFC_B, !!tx_pause_en);
  	dsaf_write_dev(drv, GMAC_PAUSE_EN_REG, pause_en);
  }
  
  static void hns_gmac_get_pausefrm_cfg(void *mac_drv, u32 *rx_pause_en,
  				      u32 *tx_pause_en)
  {
  	u32 pause_en;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	pause_en = dsaf_read_dev(drv, GMAC_PAUSE_EN_REG);
  
  	*rx_pause_en = dsaf_get_bit(pause_en, GMAC_PAUSE_EN_RX_FDFC_B);
  	*tx_pause_en = dsaf_get_bit(pause_en, GMAC_PAUSE_EN_TX_FDFC_B);
  }
  
  static int hns_gmac_adjust_link(void *mac_drv, enum mac_speed speed,
  				u32 full_duplex)
  {
  	u32 tx_ctrl;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	dsaf_set_dev_bit(drv, GMAC_DUPLEX_TYPE_REG,
  			 GMAC_DUPLEX_TYPE_B, !!full_duplex);
  
  	switch (speed) {
  	case MAC_SPEED_10:
  		dsaf_set_dev_field(
  			drv, GMAC_PORT_MODE_REG,
  			GMAC_PORT_MODE_M, GMAC_PORT_MODE_S, 0x6);
  		break;
  	case MAC_SPEED_100:
  		dsaf_set_dev_field(
  			drv, GMAC_PORT_MODE_REG,
  			GMAC_PORT_MODE_M, GMAC_PORT_MODE_S, 0x7);
  		break;
  	case MAC_SPEED_1000:
  		dsaf_set_dev_field(
  			drv, GMAC_PORT_MODE_REG,
  			GMAC_PORT_MODE_M, GMAC_PORT_MODE_S, 0x8);
  		break;
  	default:
  		dev_err(drv->dev,
  			"hns_gmac_adjust_link fail, speed%d mac%d\n",
  			speed, drv->mac_id);
  		return -EINVAL;
  	}
  
  	tx_ctrl = dsaf_read_dev(drv, GMAC_TRANSMIT_CONTROL_REG);
  	dsaf_set_bit(tx_ctrl, GMAC_TX_PAD_EN_B, 1);
  	dsaf_set_bit(tx_ctrl, GMAC_TX_CRC_ADD_B, 1);
  	dsaf_write_dev(drv, GMAC_TRANSMIT_CONTROL_REG, tx_ctrl);
  
  	dsaf_set_dev_bit(drv, GMAC_MODE_CHANGE_EN_REG,
  			 GMAC_MODE_CHANGE_EB_B, 1);
  
  	return 0;
  }
  
  static void hns_gmac_set_uc_match(void *mac_drv, u16 en)
  {
  	struct mac_driver *drv = mac_drv;
  
  	dsaf_set_dev_bit(drv, GMAC_REC_FILT_CONTROL_REG,
  			 GMAC_UC_MATCH_EN_B, !en);
  	dsaf_set_dev_bit(drv, GMAC_STATION_ADDR_HIGH_2_REG,
  			 GMAC_ADDR_EN_B, !en);
  }
  
  static void hns_gmac_set_promisc(void *mac_drv, u8 en)
  {
  	struct mac_driver *drv = mac_drv;
  
  	if (drv->mac_cb->mac_type == HNAE_PORT_DEBUG)
  		hns_gmac_set_uc_match(mac_drv, en);
  }
  
  static void hns_gmac_init(void *mac_drv)
  {
  	u32 port;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  	struct dsaf_device *dsaf_dev
  		= (struct dsaf_device *)dev_get_drvdata(drv->dev);
  
  	port = drv->mac_id;
  
  	hns_dsaf_ge_srst_by_port(dsaf_dev, port, 0);
  	mdelay(10);
  	hns_dsaf_ge_srst_by_port(dsaf_dev, port, 1);
  	mdelay(10);
  	hns_gmac_disable(mac_drv, MAC_COMM_MODE_RX_AND_TX);
  	hns_gmac_tx_loop_pkt_dis(mac_drv);
  	if (drv->mac_cb->mac_type == HNAE_PORT_DEBUG)
  		hns_gmac_set_uc_match(mac_drv, 0);
  }
  
  void hns_gmac_update_stats(void *mac_drv)
  {
  	struct mac_hw_stats *hw_stats = NULL;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	hw_stats = &drv->mac_cb->hw_stats;
  
  	/* RX */
  	hw_stats->rx_good_bytes
  		+= dsaf_read_dev(drv, GMAC_RX_OCTETS_TOTAL_OK_REG);
  	hw_stats->rx_bad_bytes
  		+= dsaf_read_dev(drv, GMAC_RX_OCTETS_BAD_REG);
  	hw_stats->rx_uc_pkts += dsaf_read_dev(drv, GMAC_RX_UC_PKTS_REG);
  	hw_stats->rx_mc_pkts += dsaf_read_dev(drv, GMAC_RX_MC_PKTS_REG);
  	hw_stats->rx_bc_pkts += dsaf_read_dev(drv, GMAC_RX_BC_PKTS_REG);
  	hw_stats->rx_64bytes
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_64OCTETS_REG);
  	hw_stats->rx_65to127
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_65TO127OCTETS_REG);
  	hw_stats->rx_128to255
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_128TO255OCTETS_REG);
  	hw_stats->rx_256to511
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_255TO511OCTETS_REG);
  	hw_stats->rx_512to1023
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_512TO1023OCTETS_REG);
  	hw_stats->rx_1024to1518
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_1024TO1518OCTETS_REG);
  	hw_stats->rx_1519tomax
  		+= dsaf_read_dev(drv, GMAC_RX_PKTS_1519TOMAXOCTETS_REG);
  	hw_stats->rx_fcs_err += dsaf_read_dev(drv, GMAC_RX_FCS_ERRORS_REG);
  	hw_stats->rx_vlan_pkts += dsaf_read_dev(drv, GMAC_RX_TAGGED_REG);
  	hw_stats->rx_data_err += dsaf_read_dev(drv, GMAC_RX_DATA_ERR_REG);
  	hw_stats->rx_align_err
  		+= dsaf_read_dev(drv, GMAC_RX_ALIGN_ERRORS_REG);
  	hw_stats->rx_oversize
  		+= dsaf_read_dev(drv, GMAC_RX_LONG_ERRORS_REG);
  	hw_stats->rx_jabber_err
  		+= dsaf_read_dev(drv, GMAC_RX_JABBER_ERRORS_REG);
  	hw_stats->rx_pfc_tc0
  		+= dsaf_read_dev(drv, GMAC_RX_PAUSE_MACCTRL_FRAM_REG);
  	hw_stats->rx_unknown_ctrl
  		+= dsaf_read_dev(drv, GMAC_RX_UNKNOWN_MACCTRL_FRAM_REG);
  	hw_stats->rx_long_err
  		+= dsaf_read_dev(drv, GMAC_RX_VERY_LONG_ERR_CNT_REG);
  	hw_stats->rx_minto64
  		+= dsaf_read_dev(drv, GMAC_RX_RUNT_ERR_CNT_REG);
  	hw_stats->rx_under_min
  		+= dsaf_read_dev(drv, GMAC_RX_SHORT_ERR_CNT_REG);
  	hw_stats->rx_filter_pkts
  		+= dsaf_read_dev(drv, GMAC_RX_FILT_PKT_CNT_REG);
  	hw_stats->rx_filter_bytes
  		+= dsaf_read_dev(drv, GMAC_RX_OCTETS_TOTAL_FILT_REG);
  	hw_stats->rx_fifo_overrun_err
  		+= dsaf_read_dev(drv, GMAC_RX_OVERRUN_CNT_REG);
  	hw_stats->rx_len_err
  		+= dsaf_read_dev(drv, GMAC_RX_LENGTHFIELD_ERR_CNT_REG);
  	hw_stats->rx_comma_err
  		+= dsaf_read_dev(drv, GMAC_RX_FAIL_COMMA_CNT_REG);
  
  	/* TX */
  	hw_stats->tx_good_bytes
  		+= dsaf_read_dev(drv, GMAC_OCTETS_TRANSMITTED_OK_REG);
  	hw_stats->tx_bad_bytes
  		+= dsaf_read_dev(drv, GMAC_OCTETS_TRANSMITTED_BAD_REG);
  	hw_stats->tx_uc_pkts += dsaf_read_dev(drv, GMAC_TX_UC_PKTS_REG);
  	hw_stats->tx_mc_pkts += dsaf_read_dev(drv, GMAC_TX_MC_PKTS_REG);
  	hw_stats->tx_bc_pkts += dsaf_read_dev(drv, GMAC_TX_BC_PKTS_REG);
  	hw_stats->tx_64bytes
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_64OCTETS_REG);
  	hw_stats->tx_65to127
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_65TO127OCTETS_REG);
  	hw_stats->tx_128to255
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_128TO255OCTETS_REG);
  	hw_stats->tx_256to511
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_255TO511OCTETS_REG);
  	hw_stats->tx_512to1023
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_512TO1023OCTETS_REG);
  	hw_stats->tx_1024to1518
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_1024TO1518OCTETS_REG);
  	hw_stats->tx_1519tomax
  		+= dsaf_read_dev(drv, GMAC_TX_PKTS_1519TOMAXOCTETS_REG);
  	hw_stats->tx_jabber_err
  		+= dsaf_read_dev(drv, GMAC_TX_EXCESSIVE_LENGTH_DROP_REG);
  	hw_stats->tx_underrun_err
  		+= dsaf_read_dev(drv, GMAC_TX_UNDERRUN_REG);
  	hw_stats->tx_vlan += dsaf_read_dev(drv, GMAC_TX_TAGGED_REG);
  	hw_stats->tx_crc_err += dsaf_read_dev(drv, GMAC_TX_CRC_ERROR_REG);
  	hw_stats->tx_pfc_tc0
  		+= dsaf_read_dev(drv, GMAC_TX_PAUSE_FRAMES_REG);
  }
  
  static void hns_gmac_set_mac_addr(void *mac_drv, char *mac_addr)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	u32 high_val = mac_addr[1] | (mac_addr[0] << 8);
  
  	u32 low_val = mac_addr[5] | (mac_addr[4] << 8)
  		| (mac_addr[3] << 16) | (mac_addr[2] << 24);
  
  	u32 val = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_2_REG);
  	u32 sta_addr_en = dsaf_get_bit(val, GMAC_ADDR_EN_B);
  
  	dsaf_write_dev(drv, GMAC_STATION_ADDR_LOW_2_REG, low_val);
  	dsaf_write_dev(drv, GMAC_STATION_ADDR_HIGH_2_REG,
  		       high_val | (sta_addr_en << GMAC_ADDR_EN_B));
  }
  
  static int hns_gmac_config_loopback(void *mac_drv, enum hnae_loop loop_mode,
  				    u8 enable)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	switch (loop_mode) {
  	case MAC_INTERNALLOOP_MAC:
  		dsaf_set_dev_bit(drv, GMAC_LOOP_REG, GMAC_LP_REG_CF2MI_LP_EN_B,
  				 !!enable);
  		break;
  	default:
  		dev_err(drv->dev, "loop_mode error\n");
  		return -EINVAL;
  	}
  
  	return 0;
  }
  
  static void hns_gmac_config_pad_and_crc(void *mac_drv, u8 newval)
  {
  	u32 tx_ctrl;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	tx_ctrl = dsaf_read_dev(drv, GMAC_TRANSMIT_CONTROL_REG);
  	dsaf_set_bit(tx_ctrl, GMAC_TX_PAD_EN_B, !!newval);
  	dsaf_set_bit(tx_ctrl, GMAC_TX_CRC_ADD_B, !!newval);
  	dsaf_write_dev(drv, GMAC_TRANSMIT_CONTROL_REG, tx_ctrl);
  }
  
  static void hns_gmac_get_id(void *mac_drv, u8 *mac_id)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*mac_id = drv->mac_id;
  }
  
  static void hns_gmac_get_info(void *mac_drv, struct mac_info *mac_info)
  {
  	enum hns_gmac_duplex_mdoe duplex;
  	enum hns_port_mode speed;
  	u32 rx_pause;
  	u32 tx_pause;
  	u32 rx;
  	u32 tx;
  	u16 fc_tx_timer;
  	struct hns_gmac_port_mode_cfg port_mode = { GMAC_10M_MII, 0 };
  
  	hns_gmac_port_mode_get(mac_drv, &port_mode);
  	mac_info->pad_and_crc_en = port_mode.crc_add && port_mode.pad_enable;
  	mac_info->auto_neg = port_mode.an_enable;
  
  	hns_gmac_get_tx_auto_pause_frames(mac_drv, &fc_tx_timer);
  	mac_info->tx_pause_time = fc_tx_timer;
  
  	hns_gmac_get_en(mac_drv, &rx, &tx);
  	mac_info->port_en = rx && tx;
  
  	hns_gmac_get_duplex_type(mac_drv, &duplex);
  	mac_info->duplex = duplex;
  
  	hns_gmac_get_port_mode(mac_drv, &speed);
  	switch (speed) {
  	case GMAC_10M_SGMII:
  		mac_info->speed = MAC_SPEED_10;
  		break;
  	case GMAC_100M_SGMII:
  		mac_info->speed = MAC_SPEED_100;
  		break;
  	case GMAC_1000M_SGMII:
  		mac_info->speed = MAC_SPEED_1000;
  		break;
  	default:
  		mac_info->speed = 0;
  		break;
  	}
  
  	hns_gmac_get_pausefrm_cfg(mac_drv, &rx_pause, &tx_pause);
  	mac_info->rx_pause_en = rx_pause;
  	mac_info->tx_pause_en = tx_pause;
  }
  
  static void hns_gmac_autoneg_stat(void *mac_drv, u32 *enable)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*enable = dsaf_get_dev_bit(drv, GMAC_TRANSMIT_CONTROL_REG,
  				   GMAC_TX_AN_EN_B);
  }
  
  static void hns_gmac_get_link_status(void *mac_drv, u32 *link_stat)
  {
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	*link_stat = dsaf_get_dev_bit(drv, GMAC_AN_NEG_STATE_REG,
  				      GMAC_AN_NEG_STAT_RX_SYNC_OK_B);
  }
  
  static void hns_gmac_get_regs(void *mac_drv, void *data)
  {
  	u32 *regs = data;
  	int i;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  
  	/* base config registers */
  	regs[0] = dsaf_read_dev(drv, GMAC_DUPLEX_TYPE_REG);
  	regs[1] = dsaf_read_dev(drv, GMAC_FD_FC_TYPE_REG);
  	regs[2] = dsaf_read_dev(drv, GMAC_FC_TX_TIMER_REG);
  	regs[3] = dsaf_read_dev(drv, GMAC_FD_FC_ADDR_LOW_REG);
  	regs[4] = dsaf_read_dev(drv, GMAC_FD_FC_ADDR_HIGH_REG);
  	regs[5] = dsaf_read_dev(drv, GMAC_IPG_TX_TIMER_REG);
  	regs[6] = dsaf_read_dev(drv, GMAC_PAUSE_THR_REG);
  	regs[7] = dsaf_read_dev(drv, GMAC_MAX_FRM_SIZE_REG);
  	regs[8] = dsaf_read_dev(drv, GMAC_PORT_MODE_REG);
  	regs[9] = dsaf_read_dev(drv, GMAC_PORT_EN_REG);
  	regs[10] = dsaf_read_dev(drv, GMAC_PAUSE_EN_REG);
  	regs[11] = dsaf_read_dev(drv, GMAC_SHORT_RUNTS_THR_REG);
  	regs[12] = dsaf_read_dev(drv, GMAC_AN_NEG_STATE_REG);
  	regs[13] = dsaf_read_dev(drv, GMAC_TX_LOCAL_PAGE_REG);
  	regs[14] = dsaf_read_dev(drv, GMAC_TRANSMIT_CONTROL_REG);
  	regs[15] = dsaf_read_dev(drv, GMAC_REC_FILT_CONTROL_REG);
  	regs[16] = dsaf_read_dev(drv, GMAC_PTP_CONFIG_REG);
  
  	/* rx static registers */
  	regs[17] = dsaf_read_dev(drv, GMAC_RX_OCTETS_TOTAL_OK_REG);
  	regs[18] = dsaf_read_dev(drv, GMAC_RX_OCTETS_BAD_REG);
  	regs[19] = dsaf_read_dev(drv, GMAC_RX_UC_PKTS_REG);
  	regs[20] = dsaf_read_dev(drv, GMAC_RX_MC_PKTS_REG);
  	regs[21] = dsaf_read_dev(drv, GMAC_RX_BC_PKTS_REG);
  	regs[22] = dsaf_read_dev(drv, GMAC_RX_PKTS_64OCTETS_REG);
  	regs[23] = dsaf_read_dev(drv, GMAC_RX_PKTS_65TO127OCTETS_REG);
  	regs[24] = dsaf_read_dev(drv, GMAC_RX_PKTS_128TO255OCTETS_REG);
  	regs[25] = dsaf_read_dev(drv, GMAC_RX_PKTS_255TO511OCTETS_REG);
  	regs[26] = dsaf_read_dev(drv, GMAC_RX_PKTS_512TO1023OCTETS_REG);
  	regs[27] = dsaf_read_dev(drv, GMAC_RX_PKTS_1024TO1518OCTETS_REG);
  	regs[28] = dsaf_read_dev(drv, GMAC_RX_PKTS_1519TOMAXOCTETS_REG);
  	regs[29] = dsaf_read_dev(drv, GMAC_RX_FCS_ERRORS_REG);
  	regs[30] = dsaf_read_dev(drv, GMAC_RX_TAGGED_REG);
  	regs[31] = dsaf_read_dev(drv, GMAC_RX_DATA_ERR_REG);
  	regs[32] = dsaf_read_dev(drv, GMAC_RX_ALIGN_ERRORS_REG);
  	regs[33] = dsaf_read_dev(drv, GMAC_RX_LONG_ERRORS_REG);
  	regs[34] = dsaf_read_dev(drv, GMAC_RX_JABBER_ERRORS_REG);
  	regs[35] = dsaf_read_dev(drv, GMAC_RX_PAUSE_MACCTRL_FRAM_REG);
  	regs[36] = dsaf_read_dev(drv, GMAC_RX_UNKNOWN_MACCTRL_FRAM_REG);
  	regs[37] = dsaf_read_dev(drv, GMAC_RX_VERY_LONG_ERR_CNT_REG);
  	regs[38] = dsaf_read_dev(drv, GMAC_RX_RUNT_ERR_CNT_REG);
  	regs[39] = dsaf_read_dev(drv, GMAC_RX_SHORT_ERR_CNT_REG);
  	regs[40] = dsaf_read_dev(drv, GMAC_RX_FILT_PKT_CNT_REG);
  	regs[41] = dsaf_read_dev(drv, GMAC_RX_OCTETS_TOTAL_FILT_REG);
  
  	/* tx static registers */
  	regs[42] = dsaf_read_dev(drv, GMAC_OCTETS_TRANSMITTED_OK_REG);
  	regs[43] = dsaf_read_dev(drv, GMAC_OCTETS_TRANSMITTED_BAD_REG);
  	regs[44] = dsaf_read_dev(drv, GMAC_TX_UC_PKTS_REG);
  	regs[45] = dsaf_read_dev(drv, GMAC_TX_MC_PKTS_REG);
  	regs[46] = dsaf_read_dev(drv, GMAC_TX_BC_PKTS_REG);
  	regs[47] = dsaf_read_dev(drv, GMAC_TX_PKTS_64OCTETS_REG);
  	regs[48] = dsaf_read_dev(drv, GMAC_TX_PKTS_65TO127OCTETS_REG);
  	regs[49] = dsaf_read_dev(drv, GMAC_TX_PKTS_128TO255OCTETS_REG);
  	regs[50] = dsaf_read_dev(drv, GMAC_TX_PKTS_255TO511OCTETS_REG);
  	regs[51] = dsaf_read_dev(drv, GMAC_TX_PKTS_512TO1023OCTETS_REG);
  	regs[52] = dsaf_read_dev(drv, GMAC_TX_PKTS_1024TO1518OCTETS_REG);
  	regs[53] = dsaf_read_dev(drv, GMAC_TX_PKTS_1519TOMAXOCTETS_REG);
  	regs[54] = dsaf_read_dev(drv, GMAC_TX_EXCESSIVE_LENGTH_DROP_REG);
  	regs[55] = dsaf_read_dev(drv, GMAC_TX_UNDERRUN_REG);
  	regs[56] = dsaf_read_dev(drv, GMAC_TX_TAGGED_REG);
  	regs[57] = dsaf_read_dev(drv, GMAC_TX_CRC_ERROR_REG);
  	regs[58] = dsaf_read_dev(drv, GMAC_TX_PAUSE_FRAMES_REG);
  
  	regs[59] = dsaf_read_dev(drv, GAMC_RX_MAX_FRAME);
  	regs[60] = dsaf_read_dev(drv, GMAC_LINE_LOOP_BACK_REG);
  	regs[61] = dsaf_read_dev(drv, GMAC_CF_CRC_STRIP_REG);
  	regs[62] = dsaf_read_dev(drv, GMAC_MODE_CHANGE_EN_REG);
  	regs[63] = dsaf_read_dev(drv, GMAC_SIXTEEN_BIT_CNTR_REG);
  	regs[64] = dsaf_read_dev(drv, GMAC_LD_LINK_COUNTER_REG);
  	regs[65] = dsaf_read_dev(drv, GMAC_LOOP_REG);
  	regs[66] = dsaf_read_dev(drv, GMAC_RECV_CONTROL_REG);
  	regs[67] = dsaf_read_dev(drv, GMAC_VLAN_CODE_REG);
  	regs[68] = dsaf_read_dev(drv, GMAC_RX_OVERRUN_CNT_REG);
  	regs[69] = dsaf_read_dev(drv, GMAC_RX_LENGTHFIELD_ERR_CNT_REG);
  	regs[70] = dsaf_read_dev(drv, GMAC_RX_FAIL_COMMA_CNT_REG);
  
  	regs[71] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_0_REG);
  	regs[72] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_0_REG);
  	regs[73] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_1_REG);
  	regs[74] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_1_REG);
  	regs[75] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_2_REG);
  	regs[76] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_2_REG);
  	regs[77] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_3_REG);
  	regs[78] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_3_REG);
  	regs[79] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_4_REG);
  	regs[80] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_4_REG);
  	regs[81] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_5_REG);
  	regs[82] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_5_REG);
  	regs[83] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_MSK_0_REG);
  	regs[84] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_MSK_0_REG);
  	regs[85] = dsaf_read_dev(drv, GMAC_STATION_ADDR_LOW_MSK_1_REG);
  	regs[86] = dsaf_read_dev(drv, GMAC_STATION_ADDR_HIGH_MSK_1_REG);
  	regs[87] = dsaf_read_dev(drv, GMAC_MAC_SKIP_LEN_REG);
  	regs[88] = dsaf_read_dev(drv, GMAC_TX_LOOP_PKT_PRI_REG);
  
  	/* mark end of mac regs */
  	for (i = 89; i < 96; i++)
  		regs[i] = 0xaaaaaaaa;
  }
  
  static void hns_gmac_get_stats(void *mac_drv, u64 *data)
  {
  	u32 i;
  	u64 *buf = data;
  	struct mac_driver *drv = (struct mac_driver *)mac_drv;
  	struct mac_hw_stats *hw_stats = NULL;
  
  	hw_stats = &drv->mac_cb->hw_stats;
  
  	for (i = 0; i < ARRAY_SIZE(g_gmac_stats_string); i++) {
  		buf[i] = DSAF_STATS_READ(hw_stats,
  			g_gmac_stats_string[i].offset);
  	}
  }
  
  static void hns_gmac_get_strings(u32 stringset, u8 *data)
  {
  	char *buff = (char *)data;
  	u32 i;
  
  	if (stringset != ETH_SS_STATS)
  		return;
  
  	for (i = 0; i < ARRAY_SIZE(g_gmac_stats_string); i++) {
  		snprintf(buff, ETH_GSTRING_LEN, "%s",
  			 g_gmac_stats_string[i].desc);
  		buff = buff + ETH_GSTRING_LEN;
  	}
  }
  
  static int hns_gmac_get_sset_count(int stringset)
  {
  	if (stringset == ETH_SS_STATS)
  		return ARRAY_SIZE(g_gmac_stats_string);
  
  	return 0;
  }
  
  static int hns_gmac_get_regs_count(void)
  {
  	return ETH_GMAC_DUMP_NUM;
  }
  
  void *hns_gmac_config(struct hns_mac_cb *mac_cb, struct mac_params *mac_param)
  {
  	struct mac_driver *mac_drv;
  
  	mac_drv = devm_kzalloc(mac_cb->dev, sizeof(*mac_drv), GFP_KERNEL);
  	if (!mac_drv)
  		return NULL;
  
  	mac_drv->mac_init = hns_gmac_init;
  	mac_drv->mac_enable = hns_gmac_enable;
  	mac_drv->mac_disable = hns_gmac_disable;
  	mac_drv->mac_free = hns_gmac_free;
  	mac_drv->adjust_link = hns_gmac_adjust_link;
  	mac_drv->set_tx_auto_pause_frames = hns_gmac_set_tx_auto_pause_frames;
  	mac_drv->config_max_frame_length = hns_gmac_config_max_frame_length;
  	mac_drv->mac_pausefrm_cfg = hns_gmac_pause_frm_cfg;
  
  	mac_drv->mac_id = mac_param->mac_id;
  	mac_drv->mac_mode = mac_param->mac_mode;
  	mac_drv->io_base = mac_param->vaddr;
  	mac_drv->dev = mac_param->dev;
  	mac_drv->mac_cb = mac_cb;
  
  	mac_drv->set_mac_addr = hns_gmac_set_mac_addr;
  	mac_drv->set_an_mode = hns_gmac_config_an_mode;
  	mac_drv->config_loopback = hns_gmac_config_loopback;
  	mac_drv->config_pad_and_crc = hns_gmac_config_pad_and_crc;
  	mac_drv->config_half_duplex = hns_gmac_set_duplex_type;
  	mac_drv->set_rx_ignore_pause_frames = hns_gmac_set_rx_auto_pause_frames;
  	mac_drv->mac_get_id = hns_gmac_get_id;
  	mac_drv->get_info = hns_gmac_get_info;
  	mac_drv->autoneg_stat = hns_gmac_autoneg_stat;
  	mac_drv->get_pause_enable = hns_gmac_get_pausefrm_cfg;
  	mac_drv->get_link_status = hns_gmac_get_link_status;
  	mac_drv->get_regs = hns_gmac_get_regs;
  	mac_drv->get_regs_count = hns_gmac_get_regs_count;
  	mac_drv->get_ethtool_stats = hns_gmac_get_stats;
  	mac_drv->get_sset_count = hns_gmac_get_sset_count;
  	mac_drv->get_strings = hns_gmac_get_strings;
  	mac_drv->update_stats = hns_gmac_update_stats;
  	mac_drv->set_promiscuous = hns_gmac_set_promisc;
  
  	return (void *)mac_drv;
  }
  