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

   1 /*
   2  * Copyright(c) 2007 Atheros Corporation. All rights reserved.
   3  *
   4  * Derived from Intel e1000 driver
   5  * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the Free
   9  * Software Foundation; either version 2 of the License, or (at your option)
  10  * any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful, but WITHOUT
  13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  15  * more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along with
  18  * this program; if not, write to the Free Software Foundation, Inc., 59
  19  * Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  */
  22
  23 #include <linux/netdevice.h>
  24 #include <linux/ethtool.h>
  25 #include <linux/slab.h>
  26
  27 #include "atl1e.h"
  28
  29 static int atl1e_get_link_ksettings(struct net_device *netdev,
  30                                     struct ethtool_link_ksettings *cmd)
  31 {
  32         struct atl1e_adapter *adapter = netdev_priv(netdev);
  33         struct atl1e_hw *hw = &adapter->hw;
  34         u32 supported, advertising;
  35
  36         supported = (SUPPORTED_10baseT_Half  |
  37                            SUPPORTED_10baseT_Full  |
  38                            SUPPORTED_100baseT_Half |
  39                            SUPPORTED_100baseT_Full |
  40                            SUPPORTED_Autoneg       |
  41                            SUPPORTED_TP);
  42         if (hw->nic_type == athr_l1e)
  43                 supported |= SUPPORTED_1000baseT_Full;
  44
  45         advertising = ADVERTISED_TP;
  46
  47         advertising |= ADVERTISED_Autoneg;
  48         advertising |= hw->autoneg_advertised;
  49
  50         cmd->base.port = PORT_TP;
  51         cmd->base.phy_address = 0;
  52
  53         if (adapter->link_speed != SPEED_0) {
  54                 cmd->base.speed = adapter->link_speed;
  55                 if (adapter->link_duplex == FULL_DUPLEX)
  56                         cmd->base.duplex = DUPLEX_FULL;
  57                 else
  58                         cmd->base.duplex = DUPLEX_HALF;
  59         } else {
  60                 cmd->base.speed = SPEED_UNKNOWN;
  61                 cmd->base.duplex = DUPLEX_UNKNOWN;
  62         }
  63
  64         cmd->base.autoneg = AUTONEG_ENABLE;
  65
  66         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported,
  67                                                 supported);
  68         ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising,
  69                                                 advertising);
  70
  71         return 0;
  72 }
  73
  74 static int atl1e_set_link_ksettings(struct net_device *netdev,
  75                                     const struct ethtool_link_ksettings *cmd)
  76 {
  77         struct atl1e_adapter *adapter = netdev_priv(netdev);
  78         struct atl1e_hw *hw = &adapter->hw;
  79         u32 advertising;
  80
  81         ethtool_convert_link_mode_to_legacy_u32(&advertising,
  82                                                 cmd->link_modes.advertising);
  83
  84         while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
  85                 msleep(1);
  86
  87         if (cmd->base.autoneg == AUTONEG_ENABLE) {
  88                 u16 adv4, adv9;
  89
  90                 if (advertising & ADVERTISE_1000_FULL) {
  91                         if (hw->nic_type == athr_l1e) {
  92                                 hw->autoneg_advertised =
  93                                         advertising & AT_ADV_MASK;
  94                         } else {
  95                                 clear_bit(__AT_RESETTING, &adapter->flags);
  96                                 return -EINVAL;
  97                         }
  98                 } else if (advertising & ADVERTISE_1000_HALF) {
  99                         clear_bit(__AT_RESETTING, &adapter->flags);
 100                         return -EINVAL;
 101                 } else {
 102                         hw->autoneg_advertised =
 103                                 advertising & AT_ADV_MASK;
 104                 }
 105                 advertising = hw->autoneg_advertised |
 106                                     ADVERTISED_TP | ADVERTISED_Autoneg;
 107
 108                 adv4 = hw->mii_autoneg_adv_reg & ~ADVERTISE_ALL;
 109                 adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
 110                 if (hw->autoneg_advertised & ADVERTISE_10_HALF)
 111                         adv4 |= ADVERTISE_10HALF;
 112                 if (hw->autoneg_advertised & ADVERTISE_10_FULL)
 113                         adv4 |= ADVERTISE_10FULL;
 114                 if (hw->autoneg_advertised & ADVERTISE_100_HALF)
 115                         adv4 |= ADVERTISE_100HALF;
 116                 if (hw->autoneg_advertised & ADVERTISE_100_FULL)
 117                         adv4 |= ADVERTISE_100FULL;
 118                 if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
 119                         adv9 |= ADVERTISE_1000FULL;
 120
 121                 if (adv4 != hw->mii_autoneg_adv_reg ||
 122                                 adv9 != hw->mii_1000t_ctrl_reg) {
 123                         hw->mii_autoneg_adv_reg = adv4;
 124                         hw->mii_1000t_ctrl_reg = adv9;
 125                         hw->re_autoneg = true;
 126                 }
 127
 128         } else {
 129                 clear_bit(__AT_RESETTING, &adapter->flags);
 130                 return -EINVAL;
 131         }
 132
 133         /* reset the link */
 134
 135         if (netif_running(adapter->netdev)) {
 136                 atl1e_down(adapter);
 137                 atl1e_up(adapter);
 138         } else
 139                 atl1e_reset_hw(&adapter->hw);
 140
 141         clear_bit(__AT_RESETTING, &adapter->flags);
 142         return 0;
 143 }
 144
 145 static u32 atl1e_get_msglevel(struct net_device *netdev)
 146 {
 147 #ifdef DBG
 148         return 1;
 149 #else
 150         return 0;
 151 #endif
 152 }
 153
 154 static int atl1e_get_regs_len(struct net_device *netdev)
 155 {
 156         return AT_REGS_LEN * sizeof(u32);
 157 }
 158
 159 static void atl1e_get_regs(struct net_device *netdev,
 160                            struct ethtool_regs *regs, void *p)
 161 {
 162         struct atl1e_adapter *adapter = netdev_priv(netdev);
 163         struct atl1e_hw *hw = &adapter->hw;
 164         u32 *regs_buff = p;
 165         u16 phy_data;
 166
 167         memset(p, 0, AT_REGS_LEN * sizeof(u32));
 168
 169         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 170
 171         regs_buff[0]  = AT_READ_REG(hw, REG_VPD_CAP);
 172         regs_buff[1]  = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
 173         regs_buff[2]  = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
 174         regs_buff[3]  = AT_READ_REG(hw, REG_TWSI_CTRL);
 175         regs_buff[4]  = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
 176         regs_buff[5]  = AT_READ_REG(hw, REG_MASTER_CTRL);
 177         regs_buff[6]  = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
 178         regs_buff[7]  = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
 179         regs_buff[8]  = AT_READ_REG(hw, REG_GPHY_CTRL);
 180         regs_buff[9]  = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
 181         regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
 182         regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
 183         regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
 184         regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
 185         regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
 186         regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
 187         regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
 188         regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
 189         regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
 190         regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
 191         regs_buff[20] = AT_READ_REG(hw, REG_MTU);
 192         regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
 193         regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
 194         regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
 195         regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
 196         regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
 197         regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
 198         regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
 199         regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
 200         regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
 201
 202         atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
 203         regs_buff[73] = (u32)phy_data;
 204         atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
 205         regs_buff[74] = (u32)phy_data;
 206 }
 207
 208 static int atl1e_get_eeprom_len(struct net_device *netdev)
 209 {
 210         struct atl1e_adapter *adapter = netdev_priv(netdev);
 211
 212         if (!atl1e_check_eeprom_exist(&adapter->hw))
 213                 return AT_EEPROM_LEN;
 214         else
 215                 return 0;
 216 }
 217
 218 static int atl1e_get_eeprom(struct net_device *netdev,
 219                 struct ethtool_eeprom *eeprom, u8 *bytes)
 220 {
 221         struct atl1e_adapter *adapter = netdev_priv(netdev);
 222         struct atl1e_hw *hw = &adapter->hw;
 223         u32 *eeprom_buff;
 224         int first_dword, last_dword;
 225         int ret_val = 0;
 226         int i;
 227
 228         if (eeprom->len == 0)
 229                 return -EINVAL;
 230
 231         if (atl1e_check_eeprom_exist(hw)) /* not exist */
 232                 return -EINVAL;
 233
 234         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 235
 236         first_dword = eeprom->offset >> 2;
 237         last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 238
 239         eeprom_buff = kmalloc(sizeof(u32) *
 240                         (last_dword - first_dword + 1), GFP_KERNEL);
 241         if (eeprom_buff == NULL)
 242                 return -ENOMEM;
 243
 244         for (i = first_dword; i < last_dword; i++) {
 245                 if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
 246                         kfree(eeprom_buff);
 247                         return -EIO;
 248                 }
 249         }
 250
 251         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
 252                         eeprom->len);
 253         kfree(eeprom_buff);
 254
 255         return ret_val;
 256 }
 257
 258 static int atl1e_set_eeprom(struct net_device *netdev,
 259                             struct ethtool_eeprom *eeprom, u8 *bytes)
 260 {
 261         struct atl1e_adapter *adapter = netdev_priv(netdev);
 262         struct atl1e_hw *hw = &adapter->hw;
 263         u32 *eeprom_buff;
 264         u32 *ptr;
 265         int first_dword, last_dword;
 266         int ret_val = 0;
 267         int i;
 268
 269         if (eeprom->len == 0)
 270                 return -EOPNOTSUPP;
 271
 272         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 273                 return -EINVAL;
 274
 275         first_dword = eeprom->offset >> 2;
 276         last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 277         eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
 278         if (eeprom_buff == NULL)
 279                 return -ENOMEM;
 280
 281         ptr = eeprom_buff;
 282
 283         if (eeprom->offset & 3) {
 284                 /* need read/modify/write of first changed EEPROM word */
 285                 /* only the second byte of the word is being modified */
 286                 if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
 287                         ret_val = -EIO;
 288                         goto out;
 289                 }
 290                 ptr++;
 291         }
 292         if (((eeprom->offset + eeprom->len) & 3)) {
 293                 /* need read/modify/write of last changed EEPROM word */
 294                 /* only the first byte of the word is being modified */
 295
 296                 if (!atl1e_read_eeprom(hw, last_dword * 4,
 297                                 &(eeprom_buff[last_dword - first_dword]))) {
 298                         ret_val = -EIO;
 299                         goto out;
 300                 }
 301         }
 302
 303         /* Device's eeprom is always little-endian, word addressable */
 304         memcpy(ptr, bytes, eeprom->len);
 305
 306         for (i = 0; i < last_dword - first_dword + 1; i++) {
 307                 if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
 308                                   eeprom_buff[i])) {
 309                         ret_val = -EIO;
 310                         goto out;
 311                 }
 312         }
 313 out:
 314         kfree(eeprom_buff);
 315         return ret_val;
 316 }
 317
 318 static void atl1e_get_drvinfo(struct net_device *netdev,
 319                 struct ethtool_drvinfo *drvinfo)
 320 {
 321         struct atl1e_adapter *adapter = netdev_priv(netdev);
 322
 323         strlcpy(drvinfo->driver,  atl1e_driver_name, sizeof(drvinfo->driver));
 324         strlcpy(drvinfo->version, atl1e_driver_version,
 325                 sizeof(drvinfo->version));
 326         strlcpy(drvinfo->fw_version, "L1e", sizeof(drvinfo->fw_version));
 327         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 328                 sizeof(drvinfo->bus_info));
 329 }
 330
 331 static void atl1e_get_wol(struct net_device *netdev,
 332                           struct ethtool_wolinfo *wol)
 333 {
 334         struct atl1e_adapter *adapter = netdev_priv(netdev);
 335
 336         wol->supported = WAKE_MAGIC | WAKE_PHY;
 337         wol->wolopts = 0;
 338
 339         if (adapter->wol & AT_WUFC_EX)
 340                 wol->wolopts |= WAKE_UCAST;
 341         if (adapter->wol & AT_WUFC_MC)
 342                 wol->wolopts |= WAKE_MCAST;
 343         if (adapter->wol & AT_WUFC_BC)
 344                 wol->wolopts |= WAKE_BCAST;
 345         if (adapter->wol & AT_WUFC_MAG)
 346                 wol->wolopts |= WAKE_MAGIC;
 347         if (adapter->wol & AT_WUFC_LNKC)
 348                 wol->wolopts |= WAKE_PHY;
 349 }
 350
 351 static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 352 {
 353         struct atl1e_adapter *adapter = netdev_priv(netdev);
 354
 355         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 356                             WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
 357                 return -EOPNOTSUPP;
 358         /* these settings will always override what we currently have */
 359         adapter->wol = 0;
 360
 361         if (wol->wolopts & WAKE_MAGIC)
 362                 adapter->wol |= AT_WUFC_MAG;
 363         if (wol->wolopts & WAKE_PHY)
 364                 adapter->wol |= AT_WUFC_LNKC;
 365
 366         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 367
 368         return 0;
 369 }
 370
 371 static int atl1e_nway_reset(struct net_device *netdev)
 372 {
 373         struct atl1e_adapter *adapter = netdev_priv(netdev);
 374         if (netif_running(netdev))
 375                 atl1e_reinit_locked(adapter);
 376         return 0;
 377 }
 378
 379 static const struct ethtool_ops atl1e_ethtool_ops = {
 380         .get_drvinfo            = atl1e_get_drvinfo,
 381         .get_regs_len           = atl1e_get_regs_len,
 382         .get_regs               = atl1e_get_regs,
 383         .get_wol                = atl1e_get_wol,
 384         .set_wol                = atl1e_set_wol,
 385         .get_msglevel           = atl1e_get_msglevel,
 386         .nway_reset             = atl1e_nway_reset,
 387         .get_link               = ethtool_op_get_link,
 388         .get_eeprom_len         = atl1e_get_eeprom_len,
 389         .get_eeprom             = atl1e_get_eeprom,
 390         .set_eeprom             = atl1e_set_eeprom,
 391         .get_link_ksettings     = atl1e_get_link_ksettings,
 392         .set_link_ksettings     = atl1e_set_link_ksettings,
 393 };
 394
 395 void atl1e_set_ethtool_ops(struct net_device *netdev)
 396 {
 397         netdev->ethtool_ops = &atl1e_ethtool_ops;
 398 }