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_settings(struct net_device *netdev,
  30                               struct ethtool_cmd *ecmd)
  31 {
  32         struct atl1e_adapter *adapter = netdev_priv(netdev);
  33         struct atl1e_hw *hw = &adapter->hw;
  34
  35         ecmd->supported = (SUPPORTED_10baseT_Half  |
  36                            SUPPORTED_10baseT_Full  |
  37                            SUPPORTED_100baseT_Half |
  38                            SUPPORTED_100baseT_Full |
  39                            SUPPORTED_Autoneg       |
  40                            SUPPORTED_TP);
  41         if (hw->nic_type == athr_l1e)
  42                 ecmd->supported |= SUPPORTED_1000baseT_Full;
  43
  44         ecmd->advertising = ADVERTISED_TP;
  45
  46         ecmd->advertising |= ADVERTISED_Autoneg;
  47         ecmd->advertising |= hw->autoneg_advertised;
  48
  49         ecmd->port = PORT_TP;
  50         ecmd->phy_address = 0;
  51         ecmd->transceiver = XCVR_INTERNAL;
  52
  53         if (adapter->link_speed != SPEED_0) {
  54                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
  55                 if (adapter->link_duplex == FULL_DUPLEX)
  56                         ecmd->duplex = DUPLEX_FULL;
  57                 else
  58                         ecmd->duplex = DUPLEX_HALF;
  59         } else {
  60                 ethtool_cmd_speed_set(ecmd, -1);
  61                 ecmd->duplex = -1;
  62         }
  63
  64         ecmd->autoneg = AUTONEG_ENABLE;
  65         return 0;
  66 }
  67
  68 static int atl1e_set_settings(struct net_device *netdev,
  69                               struct ethtool_cmd *ecmd)
  70 {
  71         struct atl1e_adapter *adapter = netdev_priv(netdev);
  72         struct atl1e_hw *hw = &adapter->hw;
  73
  74         while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
  75                 msleep(1);
  76
  77         if (ecmd->autoneg == AUTONEG_ENABLE) {
  78                 u16 adv4, adv9;
  79
  80                 if ((ecmd->advertising&ADVERTISE_1000_FULL)) {
  81                         if (hw->nic_type == athr_l1e) {
  82                                 hw->autoneg_advertised =
  83                                         ecmd->advertising & AT_ADV_MASK;
  84                         } else {
  85                                 clear_bit(__AT_RESETTING, &adapter->flags);
  86                                 return -EINVAL;
  87                         }
  88                 } else if (ecmd->advertising&ADVERTISE_1000_HALF) {
  89                         clear_bit(__AT_RESETTING, &adapter->flags);
  90                         return -EINVAL;
  91                 } else {
  92                         hw->autoneg_advertised =
  93                                 ecmd->advertising & AT_ADV_MASK;
  94                 }
  95                 ecmd->advertising = hw->autoneg_advertised |
  96                                     ADVERTISED_TP | ADVERTISED_Autoneg;
  97
  98                 adv4 = hw->mii_autoneg_adv_reg & ~ADVERTISE_ALL;
  99                 adv9 = hw->mii_1000t_ctrl_reg & ~MII_AT001_CR_1000T_SPEED_MASK;
 100                 if (hw->autoneg_advertised & ADVERTISE_10_HALF)
 101                         adv4 |= ADVERTISE_10HALF;
 102                 if (hw->autoneg_advertised & ADVERTISE_10_FULL)
 103                         adv4 |= ADVERTISE_10FULL;
 104                 if (hw->autoneg_advertised & ADVERTISE_100_HALF)
 105                         adv4 |= ADVERTISE_100HALF;
 106                 if (hw->autoneg_advertised & ADVERTISE_100_FULL)
 107                         adv4 |= ADVERTISE_100FULL;
 108                 if (hw->autoneg_advertised & ADVERTISE_1000_FULL)
 109                         adv9 |= ADVERTISE_1000FULL;
 110
 111                 if (adv4 != hw->mii_autoneg_adv_reg ||
 112                                 adv9 != hw->mii_1000t_ctrl_reg) {
 113                         hw->mii_autoneg_adv_reg = adv4;
 114                         hw->mii_1000t_ctrl_reg = adv9;
 115                         hw->re_autoneg = true;
 116                 }
 117
 118         } else {
 119                 clear_bit(__AT_RESETTING, &adapter->flags);
 120                 return -EINVAL;
 121         }
 122
 123         /* reset the link */
 124
 125         if (netif_running(adapter->netdev)) {
 126                 atl1e_down(adapter);
 127                 atl1e_up(adapter);
 128         } else
 129                 atl1e_reset_hw(&adapter->hw);
 130
 131         clear_bit(__AT_RESETTING, &adapter->flags);
 132         return 0;
 133 }
 134
 135 static u32 atl1e_get_msglevel(struct net_device *netdev)
 136 {
 137 #ifdef DBG
 138         return 1;
 139 #else
 140         return 0;
 141 #endif
 142 }
 143
 144 static int atl1e_get_regs_len(struct net_device *netdev)
 145 {
 146         return AT_REGS_LEN * sizeof(u32);
 147 }
 148
 149 static void atl1e_get_regs(struct net_device *netdev,
 150                            struct ethtool_regs *regs, void *p)
 151 {
 152         struct atl1e_adapter *adapter = netdev_priv(netdev);
 153         struct atl1e_hw *hw = &adapter->hw;
 154         u32 *regs_buff = p;
 155         u16 phy_data;
 156
 157         memset(p, 0, AT_REGS_LEN * sizeof(u32));
 158
 159         regs->version = (1 << 24) | (hw->revision_id << 16) | hw->device_id;
 160
 161         regs_buff[0]  = AT_READ_REG(hw, REG_VPD_CAP);
 162         regs_buff[1]  = AT_READ_REG(hw, REG_SPI_FLASH_CTRL);
 163         regs_buff[2]  = AT_READ_REG(hw, REG_SPI_FLASH_CONFIG);
 164         regs_buff[3]  = AT_READ_REG(hw, REG_TWSI_CTRL);
 165         regs_buff[4]  = AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL);
 166         regs_buff[5]  = AT_READ_REG(hw, REG_MASTER_CTRL);
 167         regs_buff[6]  = AT_READ_REG(hw, REG_MANUAL_TIMER_INIT);
 168         regs_buff[7]  = AT_READ_REG(hw, REG_IRQ_MODU_TIMER_INIT);
 169         regs_buff[8]  = AT_READ_REG(hw, REG_GPHY_CTRL);
 170         regs_buff[9]  = AT_READ_REG(hw, REG_CMBDISDMA_TIMER);
 171         regs_buff[10] = AT_READ_REG(hw, REG_IDLE_STATUS);
 172         regs_buff[11] = AT_READ_REG(hw, REG_MDIO_CTRL);
 173         regs_buff[12] = AT_READ_REG(hw, REG_SERDES_LOCK);
 174         regs_buff[13] = AT_READ_REG(hw, REG_MAC_CTRL);
 175         regs_buff[14] = AT_READ_REG(hw, REG_MAC_IPG_IFG);
 176         regs_buff[15] = AT_READ_REG(hw, REG_MAC_STA_ADDR);
 177         regs_buff[16] = AT_READ_REG(hw, REG_MAC_STA_ADDR+4);
 178         regs_buff[17] = AT_READ_REG(hw, REG_RX_HASH_TABLE);
 179         regs_buff[18] = AT_READ_REG(hw, REG_RX_HASH_TABLE+4);
 180         regs_buff[19] = AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL);
 181         regs_buff[20] = AT_READ_REG(hw, REG_MTU);
 182         regs_buff[21] = AT_READ_REG(hw, REG_WOL_CTRL);
 183         regs_buff[22] = AT_READ_REG(hw, REG_SRAM_TRD_ADDR);
 184         regs_buff[23] = AT_READ_REG(hw, REG_SRAM_TRD_LEN);
 185         regs_buff[24] = AT_READ_REG(hw, REG_SRAM_RXF_ADDR);
 186         regs_buff[25] = AT_READ_REG(hw, REG_SRAM_RXF_LEN);
 187         regs_buff[26] = AT_READ_REG(hw, REG_SRAM_TXF_ADDR);
 188         regs_buff[27] = AT_READ_REG(hw, REG_SRAM_TXF_LEN);
 189         regs_buff[28] = AT_READ_REG(hw, REG_SRAM_TCPH_ADDR);
 190         regs_buff[29] = AT_READ_REG(hw, REG_SRAM_PKTH_ADDR);
 191
 192         atl1e_read_phy_reg(hw, MII_BMCR, &phy_data);
 193         regs_buff[73] = (u32)phy_data;
 194         atl1e_read_phy_reg(hw, MII_BMSR, &phy_data);
 195         regs_buff[74] = (u32)phy_data;
 196 }
 197
 198 static int atl1e_get_eeprom_len(struct net_device *netdev)
 199 {
 200         struct atl1e_adapter *adapter = netdev_priv(netdev);
 201
 202         if (!atl1e_check_eeprom_exist(&adapter->hw))
 203                 return AT_EEPROM_LEN;
 204         else
 205                 return 0;
 206 }
 207
 208 static int atl1e_get_eeprom(struct net_device *netdev,
 209                 struct ethtool_eeprom *eeprom, u8 *bytes)
 210 {
 211         struct atl1e_adapter *adapter = netdev_priv(netdev);
 212         struct atl1e_hw *hw = &adapter->hw;
 213         u32 *eeprom_buff;
 214         int first_dword, last_dword;
 215         int ret_val = 0;
 216         int i;
 217
 218         if (eeprom->len == 0)
 219                 return -EINVAL;
 220
 221         if (atl1e_check_eeprom_exist(hw)) /* not exist */
 222                 return -EINVAL;
 223
 224         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
 225
 226         first_dword = eeprom->offset >> 2;
 227         last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 228
 229         eeprom_buff = kmalloc(sizeof(u32) *
 230                         (last_dword - first_dword + 1), GFP_KERNEL);
 231         if (eeprom_buff == NULL)
 232                 return -ENOMEM;
 233
 234         for (i = first_dword; i < last_dword; i++) {
 235                 if (!atl1e_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
 236                         kfree(eeprom_buff);
 237                         return -EIO;
 238                 }
 239         }
 240
 241         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
 242                         eeprom->len);
 243         kfree(eeprom_buff);
 244
 245         return ret_val;
 246 }
 247
 248 static int atl1e_set_eeprom(struct net_device *netdev,
 249                             struct ethtool_eeprom *eeprom, u8 *bytes)
 250 {
 251         struct atl1e_adapter *adapter = netdev_priv(netdev);
 252         struct atl1e_hw *hw = &adapter->hw;
 253         u32 *eeprom_buff;
 254         u32 *ptr;
 255         int first_dword, last_dword;
 256         int ret_val = 0;
 257         int i;
 258
 259         if (eeprom->len == 0)
 260                 return -EOPNOTSUPP;
 261
 262         if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 263                 return -EINVAL;
 264
 265         first_dword = eeprom->offset >> 2;
 266         last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 267         eeprom_buff = kmalloc(AT_EEPROM_LEN, GFP_KERNEL);
 268         if (eeprom_buff == NULL)
 269                 return -ENOMEM;
 270
 271         ptr = (u32 *)eeprom_buff;
 272
 273         if (eeprom->offset & 3) {
 274                 /* need read/modify/write of first changed EEPROM word */
 275                 /* only the second byte of the word is being modified */
 276                 if (!atl1e_read_eeprom(hw, first_dword * 4, &(eeprom_buff[0]))) {
 277                         ret_val = -EIO;
 278                         goto out;
 279                 }
 280                 ptr++;
 281         }
 282         if (((eeprom->offset + eeprom->len) & 3)) {
 283                 /* need read/modify/write of last changed EEPROM word */
 284                 /* only the first byte of the word is being modified */
 285
 286                 if (!atl1e_read_eeprom(hw, last_dword * 4,
 287                                 &(eeprom_buff[last_dword - first_dword]))) {
 288                         ret_val = -EIO;
 289                         goto out;
 290                 }
 291         }
 292
 293         /* Device's eeprom is always little-endian, word addressable */
 294         memcpy(ptr, bytes, eeprom->len);
 295
 296         for (i = 0; i < last_dword - first_dword + 1; i++) {
 297                 if (!atl1e_write_eeprom(hw, ((first_dword + i) * 4),
 298                                   eeprom_buff[i])) {
 299                         ret_val = -EIO;
 300                         goto out;
 301                 }
 302         }
 303 out:
 304         kfree(eeprom_buff);
 305         return ret_val;
 306 }
 307
 308 static void atl1e_get_drvinfo(struct net_device *netdev,
 309                 struct ethtool_drvinfo *drvinfo)
 310 {
 311         struct atl1e_adapter *adapter = netdev_priv(netdev);
 312
 313         strlcpy(drvinfo->driver,  atl1e_driver_name, sizeof(drvinfo->driver));
 314         strlcpy(drvinfo->version, atl1e_driver_version,
 315                 sizeof(drvinfo->version));
 316         strlcpy(drvinfo->fw_version, "L1e", sizeof(drvinfo->fw_version));
 317         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 318                 sizeof(drvinfo->bus_info));
 319         drvinfo->n_stats = 0;
 320         drvinfo->testinfo_len = 0;
 321         drvinfo->regdump_len = atl1e_get_regs_len(netdev);
 322         drvinfo->eedump_len = atl1e_get_eeprom_len(netdev);
 323 }
 324
 325 static void atl1e_get_wol(struct net_device *netdev,
 326                           struct ethtool_wolinfo *wol)
 327 {
 328         struct atl1e_adapter *adapter = netdev_priv(netdev);
 329
 330         wol->supported = WAKE_MAGIC | WAKE_PHY;
 331         wol->wolopts = 0;
 332
 333         if (adapter->wol & AT_WUFC_EX)
 334                 wol->wolopts |= WAKE_UCAST;
 335         if (adapter->wol & AT_WUFC_MC)
 336                 wol->wolopts |= WAKE_MCAST;
 337         if (adapter->wol & AT_WUFC_BC)
 338                 wol->wolopts |= WAKE_BCAST;
 339         if (adapter->wol & AT_WUFC_MAG)
 340                 wol->wolopts |= WAKE_MAGIC;
 341         if (adapter->wol & AT_WUFC_LNKC)
 342                 wol->wolopts |= WAKE_PHY;
 343 }
 344
 345 static int atl1e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 346 {
 347         struct atl1e_adapter *adapter = netdev_priv(netdev);
 348
 349         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 350                             WAKE_UCAST | WAKE_MCAST | WAKE_BCAST))
 351                 return -EOPNOTSUPP;
 352         /* these settings will always override what we currently have */
 353         adapter->wol = 0;
 354
 355         if (wol->wolopts & WAKE_MAGIC)
 356                 adapter->wol |= AT_WUFC_MAG;
 357         if (wol->wolopts & WAKE_PHY)
 358                 adapter->wol |= AT_WUFC_LNKC;
 359
 360         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 361
 362         return 0;
 363 }
 364
 365 static int atl1e_nway_reset(struct net_device *netdev)
 366 {
 367         struct atl1e_adapter *adapter = netdev_priv(netdev);
 368         if (netif_running(netdev))
 369                 atl1e_reinit_locked(adapter);
 370         return 0;
 371 }
 372
 373 static const struct ethtool_ops atl1e_ethtool_ops = {
 374         .get_settings           = atl1e_get_settings,
 375         .set_settings           = atl1e_set_settings,
 376         .get_drvinfo            = atl1e_get_drvinfo,
 377         .get_regs_len           = atl1e_get_regs_len,
 378         .get_regs               = atl1e_get_regs,
 379         .get_wol                = atl1e_get_wol,
 380         .set_wol                = atl1e_set_wol,
 381         .get_msglevel           = atl1e_get_msglevel,
 382         .nway_reset             = atl1e_nway_reset,
 383         .get_link               = ethtool_op_get_link,
 384         .get_eeprom_len         = atl1e_get_eeprom_len,
 385         .get_eeprom             = atl1e_get_eeprom,
 386         .set_eeprom             = atl1e_set_eeprom,
 387 };
 388
 389 void atl1e_set_ethtool_ops(struct net_device *netdev)
 390 {
 391         SET_ETHTOOL_OPS(netdev, &atl1e_ethtool_ops);
 392 }