drivers/net/ethernet/atheros/atl1c/atl1c_ethtool.c

   1 /*
   2  * Copyright(c) 2009 - 2009 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 "atl1c.h"
  28
  29 static int atl1c_get_settings(struct net_device *netdev,
  30                               struct ethtool_cmd *ecmd)
  31 {
  32         struct atl1c_adapter *adapter = netdev_priv(netdev);
  33         struct atl1c_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->link_cap_flags & ATL1C_LINK_CAP_1000M)
  42                 ecmd->supported |= SUPPORTED_1000baseT_Full;
  43
  44         ecmd->advertising = ADVERTISED_TP;
  45
  46         ecmd->advertising |= hw->autoneg_advertised;
  47
  48         ecmd->port = PORT_TP;
  49         ecmd->phy_address = 0;
  50         ecmd->transceiver = XCVR_INTERNAL;
  51
  52         if (adapter->link_speed != SPEED_0) {
  53                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
  54                 if (adapter->link_duplex == FULL_DUPLEX)
  55                         ecmd->duplex = DUPLEX_FULL;
  56                 else
  57                         ecmd->duplex = DUPLEX_HALF;
  58         } else {
  59                 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
  60                 ecmd->duplex = DUPLEX_UNKNOWN;
  61         }
  62
  63         ecmd->autoneg = AUTONEG_ENABLE;
  64         return 0;
  65 }
  66
  67 static int atl1c_set_settings(struct net_device *netdev,
  68                               struct ethtool_cmd *ecmd)
  69 {
  70         struct atl1c_adapter *adapter = netdev_priv(netdev);
  71         struct atl1c_hw *hw = &adapter->hw;
  72         u16  autoneg_advertised;
  73
  74         while (test_and_set_bit(__AT_RESETTING, &adapter->flags))
  75                 msleep(1);
  76
  77         if (ecmd->autoneg == AUTONEG_ENABLE) {
  78                 autoneg_advertised = ADVERTISED_Autoneg;
  79         } else {
  80                 u32 speed = ethtool_cmd_speed(ecmd);
  81                 if (speed == SPEED_1000) {
  82                         if (ecmd->duplex != DUPLEX_FULL) {
  83                                 if (netif_msg_link(adapter))
  84                                         dev_warn(&adapter->pdev->dev,
  85                                                 "1000M half is invalid\n");
  86                                 clear_bit(__AT_RESETTING, &adapter->flags);
  87                                 return -EINVAL;
  88                         }
  89                         autoneg_advertised = ADVERTISED_1000baseT_Full;
  90                 } else if (speed == SPEED_100) {
  91                         if (ecmd->duplex == DUPLEX_FULL)
  92                                 autoneg_advertised = ADVERTISED_100baseT_Full;
  93                         else
  94                                 autoneg_advertised = ADVERTISED_100baseT_Half;
  95                 } else {
  96                         if (ecmd->duplex == DUPLEX_FULL)
  97                                 autoneg_advertised = ADVERTISED_10baseT_Full;
  98                         else
  99                                 autoneg_advertised = ADVERTISED_10baseT_Half;
 100                 }
 101         }
 102
 103         if (hw->autoneg_advertised != autoneg_advertised) {
 104                 hw->autoneg_advertised = autoneg_advertised;
 105                 if (atl1c_restart_autoneg(hw) != 0) {
 106                         if (netif_msg_link(adapter))
 107                                 dev_warn(&adapter->pdev->dev,
 108                                         "ethtool speed/duplex setting failed\n");
 109                         clear_bit(__AT_RESETTING, &adapter->flags);
 110                         return -EINVAL;
 111                 }
 112         }
 113         clear_bit(__AT_RESETTING, &adapter->flags);
 114         return 0;
 115 }
 116
 117 static u32 atl1c_get_msglevel(struct net_device *netdev)
 118 {
 119         struct atl1c_adapter *adapter = netdev_priv(netdev);
 120         return adapter->msg_enable;
 121 }
 122
 123 static void atl1c_set_msglevel(struct net_device *netdev, u32 data)
 124 {
 125         struct atl1c_adapter *adapter = netdev_priv(netdev);
 126         adapter->msg_enable = data;
 127 }
 128
 129 static int atl1c_get_regs_len(struct net_device *netdev)
 130 {
 131         return AT_REGS_LEN;
 132 }
 133
 134 static void atl1c_get_regs(struct net_device *netdev,
 135                            struct ethtool_regs *regs, void *p)
 136 {
 137         struct atl1c_adapter *adapter = netdev_priv(netdev);
 138         struct atl1c_hw *hw = &adapter->hw;
 139         u32 *regs_buff = p;
 140         u16 phy_data;
 141
 142         memset(p, 0, AT_REGS_LEN);
 143
 144         regs->version = 1;
 145         AT_READ_REG(hw, REG_PM_CTRL,              p++);
 146         AT_READ_REG(hw, REG_MAC_HALF_DUPLX_CTRL,  p++);
 147         AT_READ_REG(hw, REG_TWSI_CTRL,            p++);
 148         AT_READ_REG(hw, REG_PCIE_DEV_MISC_CTRL,   p++);
 149         AT_READ_REG(hw, REG_MASTER_CTRL,          p++);
 150         AT_READ_REG(hw, REG_MANUAL_TIMER_INIT,    p++);
 151         AT_READ_REG(hw, REG_IRQ_MODRT_TIMER_INIT, p++);
 152         AT_READ_REG(hw, REG_GPHY_CTRL,            p++);
 153         AT_READ_REG(hw, REG_LINK_CTRL,            p++);
 154         AT_READ_REG(hw, REG_IDLE_STATUS,          p++);
 155         AT_READ_REG(hw, REG_MDIO_CTRL,            p++);
 156         AT_READ_REG(hw, REG_SERDES,               p++);
 157         AT_READ_REG(hw, REG_MAC_CTRL,             p++);
 158         AT_READ_REG(hw, REG_MAC_IPG_IFG,          p++);
 159         AT_READ_REG(hw, REG_MAC_STA_ADDR,         p++);
 160         AT_READ_REG(hw, REG_MAC_STA_ADDR+4,       p++);
 161         AT_READ_REG(hw, REG_RX_HASH_TABLE,        p++);
 162         AT_READ_REG(hw, REG_RX_HASH_TABLE+4,      p++);
 163         AT_READ_REG(hw, REG_RXQ_CTRL,             p++);
 164         AT_READ_REG(hw, REG_TXQ_CTRL,             p++);
 165         AT_READ_REG(hw, REG_MTU,                  p++);
 166         AT_READ_REG(hw, REG_WOL_CTRL,             p++);
 167
 168         atl1c_read_phy_reg(hw, MII_BMCR, &phy_data);
 169         regs_buff[AT_REGS_LEN/sizeof(u32) - 2] = (u32) phy_data;
 170         atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
 171         regs_buff[AT_REGS_LEN/sizeof(u32) - 1] = (u32) phy_data;
 172 }
 173
 174 static int atl1c_get_eeprom_len(struct net_device *netdev)
 175 {
 176         struct atl1c_adapter *adapter = netdev_priv(netdev);
 177
 178         if (atl1c_check_eeprom_exist(&adapter->hw))
 179                 return AT_EEPROM_LEN;
 180         else
 181                 return 0;
 182 }
 183
 184 static int atl1c_get_eeprom(struct net_device *netdev,
 185                 struct ethtool_eeprom *eeprom, u8 *bytes)
 186 {
 187         struct atl1c_adapter *adapter = netdev_priv(netdev);
 188         struct atl1c_hw *hw = &adapter->hw;
 189         u32 *eeprom_buff;
 190         int first_dword, last_dword;
 191         int ret_val = 0;
 192         int i;
 193
 194         if (eeprom->len == 0)
 195                 return -EINVAL;
 196
 197         if (!atl1c_check_eeprom_exist(hw)) /* not exist */
 198                 return -EINVAL;
 199
 200         eeprom->magic = adapter->pdev->vendor |
 201                         (adapter->pdev->device << 16);
 202
 203         first_dword = eeprom->offset >> 2;
 204         last_dword = (eeprom->offset + eeprom->len - 1) >> 2;
 205
 206         eeprom_buff = kmalloc(sizeof(u32) *
 207                         (last_dword - first_dword + 1), GFP_KERNEL);
 208         if (eeprom_buff == NULL)
 209                 return -ENOMEM;
 210
 211         for (i = first_dword; i < last_dword; i++) {
 212                 if (!atl1c_read_eeprom(hw, i * 4, &(eeprom_buff[i-first_dword]))) {
 213                         kfree(eeprom_buff);
 214                         return -EIO;
 215                 }
 216         }
 217
 218         memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 3),
 219                         eeprom->len);
 220         kfree(eeprom_buff);
 221
 222         return ret_val;
 223         return 0;
 224 }
 225
 226 static void atl1c_get_drvinfo(struct net_device *netdev,
 227                 struct ethtool_drvinfo *drvinfo)
 228 {
 229         struct atl1c_adapter *adapter = netdev_priv(netdev);
 230
 231         strlcpy(drvinfo->driver,  atl1c_driver_name, sizeof(drvinfo->driver));
 232         strlcpy(drvinfo->version, atl1c_driver_version,
 233                 sizeof(drvinfo->version));
 234         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 235                 sizeof(drvinfo->bus_info));
 236         drvinfo->n_stats = 0;
 237         drvinfo->testinfo_len = 0;
 238         drvinfo->regdump_len = atl1c_get_regs_len(netdev);
 239         drvinfo->eedump_len = atl1c_get_eeprom_len(netdev);
 240 }
 241
 242 static void atl1c_get_wol(struct net_device *netdev,
 243                           struct ethtool_wolinfo *wol)
 244 {
 245         struct atl1c_adapter *adapter = netdev_priv(netdev);
 246
 247         wol->supported = WAKE_MAGIC | WAKE_PHY;
 248         wol->wolopts = 0;
 249
 250         if (adapter->wol & AT_WUFC_EX)
 251                 wol->wolopts |= WAKE_UCAST;
 252         if (adapter->wol & AT_WUFC_MC)
 253                 wol->wolopts |= WAKE_MCAST;
 254         if (adapter->wol & AT_WUFC_BC)
 255                 wol->wolopts |= WAKE_BCAST;
 256         if (adapter->wol & AT_WUFC_MAG)
 257                 wol->wolopts |= WAKE_MAGIC;
 258         if (adapter->wol & AT_WUFC_LNKC)
 259                 wol->wolopts |= WAKE_PHY;
 260 }
 261
 262 static int atl1c_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 263 {
 264         struct atl1c_adapter *adapter = netdev_priv(netdev);
 265
 266         if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE |
 267                             WAKE_UCAST | WAKE_BCAST | WAKE_MCAST))
 268                 return -EOPNOTSUPP;
 269         /* these settings will always override what we currently have */
 270         adapter->wol = 0;
 271
 272         if (wol->wolopts & WAKE_MAGIC)
 273                 adapter->wol |= AT_WUFC_MAG;
 274         if (wol->wolopts & WAKE_PHY)
 275                 adapter->wol |= AT_WUFC_LNKC;
 276
 277         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 278
 279         return 0;
 280 }
 281
 282 static int atl1c_nway_reset(struct net_device *netdev)
 283 {
 284         struct atl1c_adapter *adapter = netdev_priv(netdev);
 285         if (netif_running(netdev))
 286                 atl1c_reinit_locked(adapter);
 287         return 0;
 288 }
 289
 290 static const struct ethtool_ops atl1c_ethtool_ops = {
 291         .get_settings           = atl1c_get_settings,
 292         .set_settings           = atl1c_set_settings,
 293         .get_drvinfo            = atl1c_get_drvinfo,
 294         .get_regs_len           = atl1c_get_regs_len,
 295         .get_regs               = atl1c_get_regs,
 296         .get_wol                = atl1c_get_wol,
 297         .set_wol                = atl1c_set_wol,
 298         .get_msglevel           = atl1c_get_msglevel,
 299         .set_msglevel           = atl1c_set_msglevel,
 300         .nway_reset             = atl1c_nway_reset,
 301         .get_link               = ethtool_op_get_link,
 302         .get_eeprom_len         = atl1c_get_eeprom_len,
 303         .get_eeprom             = atl1c_get_eeprom,
 304 };
 305
 306 void atl1c_set_ethtool_ops(struct net_device *netdev)
 307 {
 308         netdev->ethtool_ops = &atl1c_ethtool_ops;
 309 }