linux/drivers/net/ethernet/atheros/atl1e/atl1e_ethtool.c
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   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright(c) 2007 Atheros Corporation. All rights reserved.
   4 *
   5 * Derived from Intel e1000 driver
   6 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
   7 */
   8
   9#include <linux/netdevice.h>
  10#include <linux/ethtool.h>
  11#include <linux/slab.h>
  12
  13#include "atl1e.h"
  14
  15static int atl1e_get_link_ksettings(struct net_device *netdev,
  16                                    struct ethtool_link_ksettings *cmd)
  17{
  18        struct atl1e_adapter *adapter = netdev_priv(netdev);
  19        struct atl1e_hw *hw = &adapter->hw;
  20        u32 supported, advertising;
  21
  22        supported = (SUPPORTED_10baseT_Half  |
  23                           SUPPORTED_10baseT_Full  |
  24                           SUPPORTED_100baseT_Half |
  25                           SUPPORTED_100baseT_Full |
  26                           SUPPORTED_Autoneg       |
  27                           SUPPORTED_TP);
  28        if (hw->nic_type == athr_l1e)
  29                supported |= SUPPORTED_1000baseT_Full;
  30
  31        advertising = ADVERTISED_TP;
  32
  33        advertising |= ADVERTISED_Autoneg;
  34        advertising |= hw->autoneg_advertised;
  35
  36        cmd->base.port = PORT_TP;
  37        cmd->base.phy_address = 0;
  38
  39        if (adapter->link_speed != SPEED_0) {
  40                cmd->base.speed = adapter->link_speed;
  41                if (adapter->link_duplex == FULL_DUPLEX)
  42                        cmd->base.duplex = DUPLEX_FULL;
  43                else
  44                        cmd->base.duplex = DUPLEX_HALF;
  45        } else {
  46                cmd->base.speed = SPEED_UNKNOWN;
  47                cmd->base.duplex = DUPLEX_UNKNOWN;
  48        }
  49
  50        cmd->base.autoneg = AUTONEG_ENABLE;
  51
  52        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
  53                                                supported);
  54        ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
  55                                                advertising);
  56
  57        return 0;
  58}
  59
  60static int atl1e_set_link_ksettings(struct net_device *netdev,
  61                                    const struct ethtool_link_ksettings *cmd)
  62{
  63        struct atl1e_adapter *adapter = netdev_priv(netdev);
  64        struct atl1e_hw *hw = &adapter->hw;
  65        u32 advertising;
  66
  67        ethtool_convert_link_mode_to_legacy_u32(&advertising,
  68                                                cmd->link_modes.advertising);
  69
  70        while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
  71                msleep(1);
  72
  73        if (cmd->base.autoneg == AUTONEG_ENABLE) {
  74                u16 adv4, adv9;
  75
  76                if (advertising & ADVERTISE_1000_FULL) {
  77                        if (hw->nic_type == athr_l1e) {
  78                                hw->autoneg_advertised =
  79                                        advertising & AT_ADV_MASK;
  80                        } else {
  81                                clear_bit(__AT_RESETTING, &adapter->flags);
  82                                return -EINVAL;
  83                        }
  84                } else if (advertising & ADVERTISE_1000_HALF) {
  85                        clear_bit(__AT_RESETTING, &adapter->flags);
  86                        return -EINVAL;
  87                } else {
  88                        hw->autoneg_advertised =
  89                                advertising & AT_ADV_MASK;
  90                }
  91                advertising = hw->autoneg_advertised |
  92                                    ADVERTISED_TP | ADVERTISED_Autoneg;
  93
  94                adv4 = hw->mii_autoneg_adv_reg & ~ADVERTISE_ALL;
  95                adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
  96                if (hw->autoneg_advertised & ADVERTISE_10_HALF)
  97                        adv4 |= ADVERTISE_10HALF;
  98                if (hw->autoneg_advertised & ADVERTISE_10_FULL)
  99                        adv4 |= ADVERTISE_10FULL;
 100                if (hw->autoneg_advertised & ADVERTISE_100_HALF)
 101                        adv4 |= ADVERTISE_100HALF;
 102                if (hw->autoneg_advertised & ADVERTISE_100_FULL)
 103                        adv4 |= ADVERTISE_100FULL;
 104                if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
 105                        adv9 |= ADVERTISE_1000FULL;
 106
 107                if (adv4 != hw->mii_autoneg_adv_reg ||
 108                                adv9 != hw->mii_1000t_ctrl_reg) {
 109                        hw->mii_autoneg_adv_reg = adv4;
 110                        hw->mii_1000t_ctrl_reg = adv9;
 111                        hw->re_autoneg = true;
 112                }
 113
 114        } else {
 115                clear_bit(__AT_RESETTING, &adapter->flags);
 116                return -EINVAL;
 117        }
 118
 119        /* reset the link */
 120
 121        if (netif_running(adapter->netdev)) {
 122                atl1e_down(adapter);
 123                atl1e_up(adapter);
 124        } else
 125                atl1e_reset_hw(&adapter->hw);
 126
 127        clear_bit(__AT_RESETTING, &adapter->flags);
 128        return 0;
 129}
 130
 131static u32 atl1e_get_msglevel(struct net_device *netdev)
 132{
 133#ifdef DBG
 134        return 1;
 135#else
 136        return 0;
 137#endif
 138}
 139
 140static int atl1e_get_regs_len(struct net_device *netdev)
 141{
 142        return AT_REGS_LEN * sizeof(u32);
 143}
 144
 145static void atl1e_get_regs(struct net_device *netdev,
 146                           struct ethtool_regs *regs, void *p)
 147{
 148        struct atl1e_adapter *adapter = netdev_priv(netdev);
 149        struct atl1e_hw *hw = &adapter->hw;
 150        u32 *regs_buff = p;
 151        u16 phy_data;
 152
 153        memset(p, 0, AT_REGS_LEN * sizeof(u32));
 154
 155        regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 156
 157        regs_buff[0]  = AT_READ_REG(hw, REG_VPD_CAP);
 158        regs_buff[1]  = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
 159        regs_buff[2]  = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
 160        regs_buff[3]  = AT_READ_REG(hw, REG_TWSI_CTRL);
 161        regs_buff[4]  = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
 162        regs_buff[5]  = AT_READ_REG(hw, REG_MASTER_CTRL);
 163        regs_buff[6]  = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
 164        regs_buff[7]  = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
 165        regs_buff[8]  = AT_READ_REG(hw, REG_GPHY_CTRL);
 166        regs_buff[9]  = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
 167        regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
 168        regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
 169        regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
 170        regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
 171        regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
 172        regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
 173        regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
 174        regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
 175        regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
 176        regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
 177        regs_buff[20] = AT_READ_REG(hw, REG_MTU);
 178        regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
 179        regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
 180        regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
 181        regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
 182        regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
 183        regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
 184        regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
 185        regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
 186        regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
 187
 188        atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
 189        regs_buff[73] = (u32)phy_data;
 190        atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
 191        regs_buff[74] = (u32)phy_data;
 192}
 193
 194static int atl1e_get_eeprom_len(struct net_device *netdev)
 195{
 196        struct atl1e_adapter *adapter = netdev_priv(netdev);
 197
 198        if (!atl1e_check_eeprom_exist(&adapter->hw))
 199                return AT_EEPROM_LEN;
 200        else
 201                return 0;
 202}
 203
 204static int atl1e_get_eeprom(struct net_device *netdev,
 205                struct ethtool_eeprom *eeprom, u8 *bytes)
 206{
 207        struct atl1e_adapter *adapter = netdev_priv(netdev);
 208        struct atl1e_hw *hw = &adapter->hw;
 209        u32 *eeprom_buff;
 210        int first_dword, last_dword;
 211        int ret_val = 0;
 212        int i;
 213
 214        if (eeprom->len == 0)
 215                return -EINVAL;
 216
 217        if (atl1e_check_eeprom_exist(hw)) /* not exist */
 218                return -EINVAL;
 219
 220        eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 221
 222        first_dword = eeprom->offset >> 2;
 223        last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 224
 225        eeprom_buff = kmalloc_array(last_dword - first_dword + 1, sizeof(u32),
 226                                    GFP_KERNEL);
 227        if (eeprom_buff == NULL)
 228                return -ENOMEM;
 229
 230        for (i = first_dword; i < last_dword; i++) {
 231                if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
 232                        kfree(eeprom_buff);
 233                        return -EIO;
 234                }
 235        }
 236
 237        memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
 238                        eeprom->len);
 239        kfree(eeprom_buff);
 240
 241        return ret_val;
 242}
 243
 244static int atl1e_set_eeprom(struct net_device *netdev,
 245                            struct ethtool_eeprom *eeprom, u8 *bytes)
 246{
 247        struct atl1e_adapter *adapter = netdev_priv(netdev);
 248        struct atl1e_hw *hw = &adapter->hw;
 249        u32 *eeprom_buff;
 250        u32 *ptr;
 251        int first_dword, last_dword;
 252        int ret_val = 0;
 253        int i;
 254
 255        if (eeprom->len == 0)
 256                return -EOPNOTSUPP;
 257
 258        if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 259                return -EINVAL;
 260
 261        first_dword = eeprom->offset >> 2;
 262        last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 263        eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
 264        if (eeprom_buff == NULL)
 265                return -ENOMEM;
 266
 267        ptr = eeprom_buff;
 268
 269        if (eeprom->offset & 3) {
 270                /* need read/modify/write of first changed EEPROM word */
 271                /* only the second byte of the word is being modified */
 272                if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
 273                        ret_val = -EIO;
 274                        goto out;
 275                }
 276                ptr++;
 277        }
 278        if (((eeprom->offset + eeprom->len) & 3)) {
 279                /* need read/modify/write of last changed EEPROM word */
 280                /* only the first byte of the word is being modified */
 281
 282                if (!atl1e_read_eeprom(hw, last_dword * 4,
 283                                &(eeprom_buff[last_dword - first_dword]))) {
 284                        ret_val = -EIO;
 285                        goto out;
 286                }
 287        }
 288
 289        /* Device's eeprom is always little-endian, word addressable */
 290        memcpy(ptr, bytes, eeprom->len);
 291
 292        for (i = 0; i < last_dword - first_dword + 1; i++) {
 293                if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
 294                                  eeprom_buff[i])) {
 295                        ret_val = -EIO;
 296                        goto out;
 297                }
 298        }
 299out:
 300        kfree(eeprom_buff);
 301        return ret_val;
 302}
 303
 304static void atl1e_get_drvinfo(struct net_device *netdev,
 305                struct ethtool_drvinfo *drvinfo)
 306{
 307        struct atl1e_adapter *adapter = netdev_priv(netdev);
 308
 309        strlcpy(drvinfo->driver,  atl1e_driver_name, sizeof(drvinfo->driver));
 310        strlcpy(drvinfo->version, atl1e_driver_version,
 311                sizeof(drvinfo->version));
 312        strlcpy(drvinfo->fw_version, "L1e", sizeof(drvinfo->fw_version));
 313        strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 314                sizeof(drvinfo->bus_info));
 315}
 316
 317static void atl1e_get_wol(struct net_device *netdev,
 318                          struct ethtool_wolinfo *wol)
 319{
 320        struct atl1e_adapter *adapter = netdev_priv(netdev);
 321
 322        wol->supported = WAKE_MAGIC | WAKE_PHY;
 323        wol->wolopts = 0;
 324
 325        if (adapter->wol & AT_WUFC_EX)
 326                wol->wolopts |= WAKE_UCAST;
 327        if (adapter->wol & AT_WUFC_MC)
 328                wol->wolopts |= WAKE_MCAST;
 329        if (adapter->wol & AT_WUFC_BC)
 330                wol->wolopts |= WAKE_BCAST;
 331        if (adapter->wol & AT_WUFC_MAG)
 332                wol->wolopts |= WAKE_MAGIC;
 333        if (adapter->wol & AT_WUFC_LNKC)
 334                wol->wolopts |= WAKE_PHY;
 335}
 336
 337static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 338{
 339        struct atl1e_adapter *adapter = netdev_priv(netdev);
 340
 341        if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 342                            WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
 343                return -EOPNOTSUPP;
 344        /* these settings will always override what we currently have */
 345        adapter->wol = 0;
 346
 347        if (wol->wolopts & WAKE_MAGIC)
 348                adapter->wol |= AT_WUFC_MAG;
 349        if (wol->wolopts & WAKE_PHY)
 350                adapter->wol |= AT_WUFC_LNKC;
 351
 352        device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 353
 354        return 0;
 355}
 356
 357static int atl1e_nway_reset(struct net_device *netdev)
 358{
 359        struct atl1e_adapter *adapter = netdev_priv(netdev);
 360        if (netif_running(netdev))
 361                atl1e_reinit_locked(adapter);
 362        return 0;
 363}
 364
 365static const struct ethtool_ops atl1e_ethtool_ops = {
 366        .get_drvinfo            = atl1e_get_drvinfo,
 367        .get_regs_len           = atl1e_get_regs_len,
 368        .get_regs               = atl1e_get_regs,
 369        .get_wol                = atl1e_get_wol,
 370        .set_wol                = atl1e_set_wol,
 371        .get_msglevel           = atl1e_get_msglevel,
 372        .nway_reset             = atl1e_nway_reset,
 373        .get_link               = ethtool_op_get_link,
 374        .get_eeprom_len         = atl1e_get_eeprom_len,
 375        .get_eeprom             = atl1e_get_eeprom,
 376        .set_eeprom             = atl1e_set_eeprom,
 377        .get_link_ksettings     = atl1e_get_link_ksettings,
 378        .set_link_ksettings     = atl1e_set_link_ksettings,
 379};
 380
 381void atl1e_set_ethtool_ops(struct net_device *netdev)
 382{
 383        netdev->ethtool_ops = &atl1e_ethtool_ops;
 384}
 385