drivers/net/ethernet/atheros/atl1e/atl1e_ethtool.c

   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
  15 static 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
  60 static 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
 131 static u32 atl1e_get_msglevel(struct net_device *netdev)
 132 {
 133 #ifdef DBG
 134         return 1;
 135 #else
 136         return 0;
 137 #endif
 138 }
 139
 140 static int atl1e_get_regs_len(struct net_device *netdev)
 141 {
 142         return AT_REGS_LEN * sizeof(u32);
 143 }
 144
 145 static 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
 194 static 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
 204 static 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
 244 static 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         }
 299 out:
 300         kfree(eeprom_buff);
 301         return ret_val;
 302 }
 303
 304 static 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->fw_version, "L1e", sizeof(drvinfo->fw_version));
 311         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 312                 sizeof(drvinfo->bus_info));
 313 }
 314
 315 static void atl1e_get_wol(struct net_device *netdev,
 316                           struct ethtool_wolinfo *wol)
 317 {
 318         struct atl1e_adapter *adapter = netdev_priv(netdev);
 319
 320         wol->supported = WAKE_MAGIC | WAKE_PHY;
 321         wol->wolopts = 0;
 322
 323         if (adapter->wol & AT_WUFC_EX)
 324                 wol->wolopts |= WAKE_UCAST;
 325         if (adapter->wol & AT_WUFC_MC)
 326                 wol->wolopts |= WAKE_MCAST;
 327         if (adapter->wol & AT_WUFC_BC)
 328                 wol->wolopts |= WAKE_BCAST;
 329         if (adapter->wol & AT_WUFC_MAG)
 330                 wol->wolopts |= WAKE_MAGIC;
 331         if (adapter->wol & AT_WUFC_LNKC)
 332                 wol->wolopts |= WAKE_PHY;
 333 }
 334
 335 static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 336 {
 337         struct atl1e_adapter *adapter = netdev_priv(netdev);
 338
 339         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 340                             WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
 341                 return -EOPNOTSUPP;
 342         /* these settings will always override what we currently have */
 343         adapter->wol = 0;
 344
 345         if (wol->wolopts & WAKE_MAGIC)
 346                 adapter->wol |= AT_WUFC_MAG;
 347         if (wol->wolopts & WAKE_PHY)
 348                 adapter->wol |= AT_WUFC_LNKC;
 349
 350         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 351
 352         return 0;
 353 }
 354
 355 static int atl1e_nway_reset(struct net_device *netdev)
 356 {
 357         struct atl1e_adapter *adapter = netdev_priv(netdev);
 358         if (netif_running(netdev))
 359                 atl1e_reinit_locked(adapter);
 360         return 0;
 361 }
 362
 363 static const struct ethtool_ops atl1e_ethtool_ops = {
 364         .get_drvinfo            = atl1e_get_drvinfo,
 365         .get_regs_len           = atl1e_get_regs_len,
 366         .get_regs               = atl1e_get_regs,
 367         .get_wol                = atl1e_get_wol,
 368         .set_wol                = atl1e_set_wol,
 369         .get_msglevel           = atl1e_get_msglevel,
 370         .nway_reset             = atl1e_nway_reset,
 371         .get_link               = ethtool_op_get_link,
 372         .get_eeprom_len         = atl1e_get_eeprom_len,
 373         .get_eeprom             = atl1e_get_eeprom,
 374         .set_eeprom             = atl1e_set_eeprom,
 375         .get_link_ksettings     = atl1e_get_link_ksettings,
 376         .set_link_ksettings     = atl1e_set_link_ksettings,
 377 };
 378
 379 void atl1e_set_ethtool_ops(struct net_device *netdev)
 380 {
 381         netdev->ethtool_ops = &atl1e_ethtool_ops;
 382 }