linux/drivers/net/ethernet/atheros/atl1e/atl1e_ethtool.c
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   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
  29static 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
  74static 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
 145static u32 atl1e_get_msglevel(struct net_device *netdev)
 146{
 147#ifdef DBG
 148        return 1;
 149#else
 150        return 0;
 151#endif
 152}
 153
 154static int atl1e_get_regs_len(struct net_device *netdev)
 155{
 156        return AT_REGS_LEN * sizeof(u32);
 157}
 158
 159static 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
 208static 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
 218static 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
 258static 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        }
 313out:
 314        kfree(eeprom_buff);
 315        return ret_val;
 316}
 317
 318static 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
 331static 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
 351static 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
 371static 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
 379static 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
 395void atl1e_set_ethtool_ops(struct net_device *netdev)
 396{
 397        netdev->ethtool_ops = &atl1e_ethtool_ops;
 398}
 399