drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

   1 /*******************************************************************************
   2   STMMAC Ethtool support
   3
   4   Copyright (C) 2007-2009  STMicroelectronics Ltd
   5
   6   This program is free software; you can redistribute it and/or modify it
   7   under the terms and conditions of the GNU General Public License,
   8   version 2, as published by the Free Software Foundation.
   9
  10   This program is distributed in the hope it will be useful, but WITHOUT
  11   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13   more details.
  14
  15   You should have received a copy of the GNU General Public License along with
  16   this program; if not, write to the Free Software Foundation, Inc.,
  17   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  18
  19   The full GNU General Public License is included in this distribution in
  20   the file called "COPYING".
  21
  22   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  23 *******************************************************************************/
  24
  25 #include <linux/etherdevice.h>
  26 #include <linux/ethtool.h>
  27 #include <linux/interrupt.h>
  28 #include <linux/mii.h>
  29 #include <linux/phy.h>
  30 #include <asm/io.h>
  31
  32 #include "stmmac.h"
  33 #include "dwmac_dma.h"
  34
  35 #define REG_SPACE_SIZE  0x1054
  36 #define MAC100_ETHTOOL_NAME     "st_mac100"
  37 #define GMAC_ETHTOOL_NAME       "st_gmac"
  38
  39 struct stmmac_stats {
  40         char stat_string[ETH_GSTRING_LEN];
  41         int sizeof_stat;
  42         int stat_offset;
  43 };
  44
  45 #define STMMAC_STAT(m)  \
  46         { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m),       \
  47         offsetof(struct stmmac_priv, xstats.m)}
  48
  49 static const struct stmmac_stats stmmac_gstrings_stats[] = {
  50         /* Transmit errors */
  51         STMMAC_STAT(tx_underflow),
  52         STMMAC_STAT(tx_carrier),
  53         STMMAC_STAT(tx_losscarrier),
  54         STMMAC_STAT(vlan_tag),
  55         STMMAC_STAT(tx_deferred),
  56         STMMAC_STAT(tx_vlan),
  57         STMMAC_STAT(tx_jabber),
  58         STMMAC_STAT(tx_frame_flushed),
  59         STMMAC_STAT(tx_payload_error),
  60         STMMAC_STAT(tx_ip_header_error),
  61         /* Receive errors */
  62         STMMAC_STAT(rx_desc),
  63         STMMAC_STAT(sa_filter_fail),
  64         STMMAC_STAT(overflow_error),
  65         STMMAC_STAT(ipc_csum_error),
  66         STMMAC_STAT(rx_collision),
  67         STMMAC_STAT(rx_crc),
  68         STMMAC_STAT(dribbling_bit),
  69         STMMAC_STAT(rx_length),
  70         STMMAC_STAT(rx_mii),
  71         STMMAC_STAT(rx_multicast),
  72         STMMAC_STAT(rx_gmac_overflow),
  73         STMMAC_STAT(rx_watchdog),
  74         STMMAC_STAT(da_rx_filter_fail),
  75         STMMAC_STAT(sa_rx_filter_fail),
  76         STMMAC_STAT(rx_missed_cntr),
  77         STMMAC_STAT(rx_overflow_cntr),
  78         STMMAC_STAT(rx_vlan),
  79         /* Tx/Rx IRQ error info */
  80         STMMAC_STAT(tx_undeflow_irq),
  81         STMMAC_STAT(tx_process_stopped_irq),
  82         STMMAC_STAT(tx_jabber_irq),
  83         STMMAC_STAT(rx_overflow_irq),
  84         STMMAC_STAT(rx_buf_unav_irq),
  85         STMMAC_STAT(rx_process_stopped_irq),
  86         STMMAC_STAT(rx_watchdog_irq),
  87         STMMAC_STAT(tx_early_irq),
  88         STMMAC_STAT(fatal_bus_error_irq),
  89         /* Tx/Rx IRQ Events */
  90         STMMAC_STAT(rx_early_irq),
  91         STMMAC_STAT(threshold),
  92         STMMAC_STAT(tx_pkt_n),
  93         STMMAC_STAT(rx_pkt_n),
  94         STMMAC_STAT(normal_irq_n),
  95         STMMAC_STAT(rx_normal_irq_n),
  96         STMMAC_STAT(napi_poll),
  97         STMMAC_STAT(tx_normal_irq_n),
  98         STMMAC_STAT(tx_clean),
  99         STMMAC_STAT(tx_reset_ic_bit),
 100         STMMAC_STAT(irq_receive_pmt_irq_n),
 101         /* MMC info */
 102         STMMAC_STAT(mmc_tx_irq_n),
 103         STMMAC_STAT(mmc_rx_irq_n),
 104         STMMAC_STAT(mmc_rx_csum_offload_irq_n),
 105         /* EEE */
 106         STMMAC_STAT(irq_tx_path_in_lpi_mode_n),
 107         STMMAC_STAT(irq_tx_path_exit_lpi_mode_n),
 108         STMMAC_STAT(irq_rx_path_in_lpi_mode_n),
 109         STMMAC_STAT(irq_rx_path_exit_lpi_mode_n),
 110         STMMAC_STAT(phy_eee_wakeup_error_n),
 111         /* Extended RDES status */
 112         STMMAC_STAT(ip_hdr_err),
 113         STMMAC_STAT(ip_payload_err),
 114         STMMAC_STAT(ip_csum_bypassed),
 115         STMMAC_STAT(ipv4_pkt_rcvd),
 116         STMMAC_STAT(ipv6_pkt_rcvd),
 117         STMMAC_STAT(rx_msg_type_ext_no_ptp),
 118         STMMAC_STAT(rx_msg_type_sync),
 119         STMMAC_STAT(rx_msg_type_follow_up),
 120         STMMAC_STAT(rx_msg_type_delay_req),
 121         STMMAC_STAT(rx_msg_type_delay_resp),
 122         STMMAC_STAT(rx_msg_type_pdelay_req),
 123         STMMAC_STAT(rx_msg_type_pdelay_resp),
 124         STMMAC_STAT(rx_msg_type_pdelay_follow_up),
 125         STMMAC_STAT(ptp_frame_type),
 126         STMMAC_STAT(ptp_ver),
 127         STMMAC_STAT(timestamp_dropped),
 128         STMMAC_STAT(av_pkt_rcvd),
 129         STMMAC_STAT(av_tagged_pkt_rcvd),
 130         STMMAC_STAT(vlan_tag_priority_val),
 131         STMMAC_STAT(l3_filter_match),
 132         STMMAC_STAT(l4_filter_match),
 133         STMMAC_STAT(l3_l4_filter_no_match),
 134         /* PCS */
 135         STMMAC_STAT(irq_pcs_ane_n),
 136         STMMAC_STAT(irq_pcs_link_n),
 137         STMMAC_STAT(irq_rgmii_n),
 138 };
 139 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 140
 141 /* HW MAC Management counters (if supported) */
 142 #define STMMAC_MMC_STAT(m)      \
 143         { #m, FIELD_SIZEOF(struct stmmac_counters, m),  \
 144         offsetof(struct stmmac_priv, mmc.m)}
 145
 146 static const struct stmmac_stats stmmac_mmc[] = {
 147         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 148         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 149         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 150         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 151         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 152         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 153         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 154         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 155         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 156         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 157         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 158         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 159         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 160         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 161         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 162         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 163         STMMAC_MMC_STAT(mmc_tx_deferred),
 164         STMMAC_MMC_STAT(mmc_tx_latecol),
 165         STMMAC_MMC_STAT(mmc_tx_exesscol),
 166         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 167         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 168         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 169         STMMAC_MMC_STAT(mmc_tx_excessdef),
 170         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 171         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 172         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 173         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 174         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 175         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 176         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 177         STMMAC_MMC_STAT(mmc_rx_crc_errror),
 178         STMMAC_MMC_STAT(mmc_rx_align_error),
 179         STMMAC_MMC_STAT(mmc_rx_run_error),
 180         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 181         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 182         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 183         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 184         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 185         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 186         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 187         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 188         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 189         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 190         STMMAC_MMC_STAT(mmc_rx_length_error),
 191         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 192         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 193         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 194         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 195         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 196         STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
 197         STMMAC_MMC_STAT(mmc_rx_ipc_intr),
 198         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 199         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 200         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 201         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 202         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 203         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 204         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 205         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 206         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 207         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 208         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 209         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 210         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 211         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 212         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 213         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 214         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 215         STMMAC_MMC_STAT(mmc_rx_udp_err),
 216         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 217         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 218         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 219         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 220         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 221         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 222         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 223         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 224         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 225         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 226 };
 227 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
 228
 229 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 230                                       struct ethtool_drvinfo *info)
 231 {
 232         struct stmmac_priv *priv = netdev_priv(dev);
 233
 234         if (priv->plat->has_gmac)
 235                 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 236         else
 237                 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 238                         sizeof(info->driver));
 239
 240         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 241 }
 242
 243 static int stmmac_ethtool_getsettings(struct net_device *dev,
 244                                       struct ethtool_cmd *cmd)
 245 {
 246         struct stmmac_priv *priv = netdev_priv(dev);
 247         struct phy_device *phy = priv->phydev;
 248         int rc;
 249
 250         if ((priv->pcs & STMMAC_PCS_RGMII) || (priv->pcs & STMMAC_PCS_SGMII)) {
 251                 struct rgmii_adv adv;
 252
 253                 if (!priv->xstats.pcs_link) {
 254                         ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 255                         cmd->duplex = DUPLEX_UNKNOWN;
 256                         return 0;
 257                 }
 258                 cmd->duplex = priv->xstats.pcs_duplex;
 259
 260                 ethtool_cmd_speed_set(cmd, priv->xstats.pcs_speed);
 261
 262                 /* Get and convert ADV/LP_ADV from the HW AN registers */
 263                 if (priv->hw->mac->get_adv)
 264                         priv->hw->mac->get_adv(priv->ioaddr, &adv);
 265                 else
 266                         return -EOPNOTSUPP;     /* should never happen indeed */
 267
 268                 /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 269
 270                 if (adv.pause & STMMAC_PCS_PAUSE)
 271                         cmd->advertising |= ADVERTISED_Pause;
 272                 if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
 273                         cmd->advertising |= ADVERTISED_Asym_Pause;
 274                 if (adv.lp_pause & STMMAC_PCS_PAUSE)
 275                         cmd->lp_advertising |= ADVERTISED_Pause;
 276                 if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
 277                         cmd->lp_advertising |= ADVERTISED_Asym_Pause;
 278
 279                 /* Reg49[3] always set because ANE is always supported */
 280                 cmd->autoneg = ADVERTISED_Autoneg;
 281                 cmd->supported |= SUPPORTED_Autoneg;
 282                 cmd->advertising |= ADVERTISED_Autoneg;
 283                 cmd->lp_advertising |= ADVERTISED_Autoneg;
 284
 285                 if (adv.duplex) {
 286                         cmd->supported |= (SUPPORTED_1000baseT_Full |
 287                                            SUPPORTED_100baseT_Full |
 288                                            SUPPORTED_10baseT_Full);
 289                         cmd->advertising |= (ADVERTISED_1000baseT_Full |
 290                                              ADVERTISED_100baseT_Full |
 291                                              ADVERTISED_10baseT_Full);
 292                 } else {
 293                         cmd->supported |= (SUPPORTED_1000baseT_Half |
 294                                            SUPPORTED_100baseT_Half |
 295                                            SUPPORTED_10baseT_Half);
 296                         cmd->advertising |= (ADVERTISED_1000baseT_Half |
 297                                              ADVERTISED_100baseT_Half |
 298                                              ADVERTISED_10baseT_Half);
 299                 }
 300                 if (adv.lp_duplex)
 301                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Full |
 302                                                 ADVERTISED_100baseT_Full |
 303                                                 ADVERTISED_10baseT_Full);
 304                 else
 305                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Half |
 306                                                 ADVERTISED_100baseT_Half |
 307                                                 ADVERTISED_10baseT_Half);
 308                 cmd->port = PORT_OTHER;
 309
 310                 return 0;
 311         }
 312
 313         if (phy == NULL) {
 314                 pr_err("%s: %s: PHY is not registered\n",
 315                        __func__, dev->name);
 316                 return -ENODEV;
 317         }
 318         if (!netif_running(dev)) {
 319                 pr_err("%s: interface is disabled: we cannot track "
 320                 "link speed / duplex setting\n", dev->name);
 321                 return -EBUSY;
 322         }
 323         cmd->transceiver = XCVR_INTERNAL;
 324         spin_lock_irq(&priv->lock);
 325         rc = phy_ethtool_gset(phy, cmd);
 326         spin_unlock_irq(&priv->lock);
 327         return rc;
 328 }
 329
 330 static int stmmac_ethtool_setsettings(struct net_device *dev,
 331                                       struct ethtool_cmd *cmd)
 332 {
 333         struct stmmac_priv *priv = netdev_priv(dev);
 334         struct phy_device *phy = priv->phydev;
 335         int rc;
 336
 337         if ((priv->pcs & STMMAC_PCS_RGMII) || (priv->pcs & STMMAC_PCS_SGMII)) {
 338                 u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 339
 340                 /* Only support ANE */
 341                 if (cmd->autoneg != AUTONEG_ENABLE)
 342                         return -EINVAL;
 343
 344                 if (cmd->autoneg == AUTONEG_ENABLE) {
 345                         mask &= (ADVERTISED_1000baseT_Half |
 346                         ADVERTISED_1000baseT_Full |
 347                         ADVERTISED_100baseT_Half |
 348                         ADVERTISED_100baseT_Full |
 349                         ADVERTISED_10baseT_Half |
 350                         ADVERTISED_10baseT_Full);
 351
 352                         spin_lock(&priv->lock);
 353                         if (priv->hw->mac->ctrl_ane)
 354                                 priv->hw->mac->ctrl_ane(priv->ioaddr, 1);
 355                         spin_unlock(&priv->lock);
 356                 }
 357
 358                 return 0;
 359         }
 360
 361         spin_lock(&priv->lock);
 362         rc = phy_ethtool_sset(phy, cmd);
 363         spin_unlock(&priv->lock);
 364
 365         return rc;
 366 }
 367
 368 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 369 {
 370         struct stmmac_priv *priv = netdev_priv(dev);
 371         return priv->msg_enable;
 372 }
 373
 374 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 375 {
 376         struct stmmac_priv *priv = netdev_priv(dev);
 377         priv->msg_enable = level;
 378
 379 }
 380
 381 static int stmmac_check_if_running(struct net_device *dev)
 382 {
 383         if (!netif_running(dev))
 384                 return -EBUSY;
 385         return 0;
 386 }
 387
 388 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 389 {
 390         return REG_SPACE_SIZE;
 391 }
 392
 393 static void stmmac_ethtool_gregs(struct net_device *dev,
 394                           struct ethtool_regs *regs, void *space)
 395 {
 396         int i;
 397         u32 *reg_space = (u32 *) space;
 398
 399         struct stmmac_priv *priv = netdev_priv(dev);
 400
 401         memset(reg_space, 0x0, REG_SPACE_SIZE);
 402
 403         if (!priv->plat->has_gmac) {
 404                 /* MAC registers */
 405                 for (i = 0; i < 12; i++)
 406                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 407                 /* DMA registers */
 408                 for (i = 0; i < 9; i++)
 409                         reg_space[i + 12] =
 410                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 411                 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
 412                 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
 413         } else {
 414                 /* MAC registers */
 415                 for (i = 0; i < 55; i++)
 416                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 417                 /* DMA registers */
 418                 for (i = 0; i < 22; i++)
 419                         reg_space[i + 55] =
 420                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 421         }
 422 }
 423
 424 static void
 425 stmmac_get_pauseparam(struct net_device *netdev,
 426                       struct ethtool_pauseparam *pause)
 427 {
 428         struct stmmac_priv *priv = netdev_priv(netdev);
 429
 430         if (priv->pcs)  /* FIXME */
 431                 return;
 432
 433         spin_lock(&priv->lock);
 434
 435         pause->rx_pause = 0;
 436         pause->tx_pause = 0;
 437         pause->autoneg = priv->phydev->autoneg;
 438
 439         if (priv->flow_ctrl & FLOW_RX)
 440                 pause->rx_pause = 1;
 441         if (priv->flow_ctrl & FLOW_TX)
 442                 pause->tx_pause = 1;
 443
 444         spin_unlock(&priv->lock);
 445 }
 446
 447 static int
 448 stmmac_set_pauseparam(struct net_device *netdev,
 449                       struct ethtool_pauseparam *pause)
 450 {
 451         struct stmmac_priv *priv = netdev_priv(netdev);
 452         struct phy_device *phy = priv->phydev;
 453         int new_pause = FLOW_OFF;
 454         int ret = 0;
 455
 456         if (priv->pcs)  /* FIXME */
 457                 return -EOPNOTSUPP;
 458
 459         spin_lock(&priv->lock);
 460
 461         if (pause->rx_pause)
 462                 new_pause |= FLOW_RX;
 463         if (pause->tx_pause)
 464                 new_pause |= FLOW_TX;
 465
 466         priv->flow_ctrl = new_pause;
 467         phy->autoneg = pause->autoneg;
 468
 469         if (phy->autoneg) {
 470                 if (netif_running(netdev))
 471                         ret = phy_start_aneg(phy);
 472         } else
 473                 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
 474                                          priv->flow_ctrl, priv->pause);
 475         spin_unlock(&priv->lock);
 476         return ret;
 477 }
 478
 479 static void stmmac_get_ethtool_stats(struct net_device *dev,
 480                                  struct ethtool_stats *dummy, u64 *data)
 481 {
 482         struct stmmac_priv *priv = netdev_priv(dev);
 483         int i, j = 0;
 484
 485         /* Update the DMA HW counters for dwmac10/100 */
 486         if (!priv->plat->has_gmac)
 487                 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
 488                                                  (void *) &priv->xstats,
 489                                                  priv->ioaddr);
 490         else {
 491                 /* If supported, for new GMAC chips expose the MMC counters */
 492                 if (priv->dma_cap.rmon) {
 493                         dwmac_mmc_read(priv->ioaddr, &priv->mmc);
 494
 495                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 496                                 char *p;
 497                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 498
 499                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 500                                              sizeof(u64)) ? (*(u64 *)p) :
 501                                              (*(u32 *)p);
 502                         }
 503                 }
 504                 if (priv->eee_enabled) {
 505                         int val = phy_get_eee_err(priv->phydev);
 506                         if (val)
 507                                 priv->xstats.phy_eee_wakeup_error_n = val;
 508                 }
 509         }
 510         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 511                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 512                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 513                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 514         }
 515 }
 516
 517 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 518 {
 519         struct stmmac_priv *priv = netdev_priv(netdev);
 520         int len;
 521
 522         switch (sset) {
 523         case ETH_SS_STATS:
 524                 len = STMMAC_STATS_LEN;
 525
 526                 if (priv->dma_cap.rmon)
 527                         len += STMMAC_MMC_STATS_LEN;
 528
 529                 return len;
 530         default:
 531                 return -EOPNOTSUPP;
 532         }
 533 }
 534
 535 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 536 {
 537         int i;
 538         u8 *p = data;
 539         struct stmmac_priv *priv = netdev_priv(dev);
 540
 541         switch (stringset) {
 542         case ETH_SS_STATS:
 543                 if (priv->dma_cap.rmon)
 544                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 545                                 memcpy(p, stmmac_mmc[i].stat_string,
 546                                        ETH_GSTRING_LEN);
 547                                 p += ETH_GSTRING_LEN;
 548                         }
 549                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 550                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 551                                 ETH_GSTRING_LEN);
 552                         p += ETH_GSTRING_LEN;
 553                 }
 554                 break;
 555         default:
 556                 WARN_ON(1);
 557                 break;
 558         }
 559 }
 560
 561 /* Currently only support WOL through Magic packet. */
 562 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 563 {
 564         struct stmmac_priv *priv = netdev_priv(dev);
 565
 566         spin_lock_irq(&priv->lock);
 567         if (device_can_wakeup(priv->device)) {
 568                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 569                 wol->wolopts = priv->wolopts;
 570         }
 571         spin_unlock_irq(&priv->lock);
 572 }
 573
 574 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 575 {
 576         struct stmmac_priv *priv = netdev_priv(dev);
 577         u32 support = WAKE_MAGIC | WAKE_UCAST;
 578
 579         /* By default almost all GMAC devices support the WoL via
 580          * magic frame but we can disable it if the HW capability
 581          * register shows no support for pmt_magic_frame. */
 582         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 583                 wol->wolopts &= ~WAKE_MAGIC;
 584
 585         if (!device_can_wakeup(priv->device))
 586                 return -EINVAL;
 587
 588         if (wol->wolopts & ~support)
 589                 return -EINVAL;
 590
 591         if (wol->wolopts) {
 592                 pr_info("stmmac: wakeup enable\n");
 593                 device_set_wakeup_enable(priv->device, 1);
 594                 enable_irq_wake(priv->wol_irq);
 595         } else {
 596                 device_set_wakeup_enable(priv->device, 0);
 597                 disable_irq_wake(priv->wol_irq);
 598         }
 599
 600         spin_lock_irq(&priv->lock);
 601         priv->wolopts = wol->wolopts;
 602         spin_unlock_irq(&priv->lock);
 603
 604         return 0;
 605 }
 606
 607 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 608                                      struct ethtool_eee *edata)
 609 {
 610         struct stmmac_priv *priv = netdev_priv(dev);
 611
 612         if (!priv->dma_cap.eee)
 613                 return -EOPNOTSUPP;
 614
 615         edata->eee_enabled = priv->eee_enabled;
 616         edata->eee_active = priv->eee_active;
 617         edata->tx_lpi_timer = priv->tx_lpi_timer;
 618
 619         return phy_ethtool_get_eee(priv->phydev, edata);
 620 }
 621
 622 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 623                                      struct ethtool_eee *edata)
 624 {
 625         struct stmmac_priv *priv = netdev_priv(dev);
 626
 627         priv->eee_enabled = edata->eee_enabled;
 628
 629         if (!priv->eee_enabled)
 630                 stmmac_disable_eee_mode(priv);
 631         else {
 632                 /* We are asking for enabling the EEE but it is safe
 633                  * to verify all by invoking the eee_init function.
 634                  * In case of failure it will return an error.
 635                  */
 636                 priv->eee_enabled = stmmac_eee_init(priv);
 637                 if (!priv->eee_enabled)
 638                         return -EOPNOTSUPP;
 639
 640                 /* Do not change tx_lpi_timer in case of failure */
 641                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 642         }
 643
 644         return phy_ethtool_set_eee(priv->phydev, edata);
 645 }
 646
 647 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 648 {
 649         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 650
 651         if (!clk)
 652                 return 0;
 653
 654         return (usec * (clk / 1000000)) / 256;
 655 }
 656
 657 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 658 {
 659         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 660
 661         if (!clk)
 662                 return 0;
 663
 664         return (riwt * 256) / (clk / 1000000);
 665 }
 666
 667 static int stmmac_get_coalesce(struct net_device *dev,
 668                                struct ethtool_coalesce *ec)
 669 {
 670         struct stmmac_priv *priv = netdev_priv(dev);
 671
 672         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 673         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 674
 675         if (priv->use_riwt)
 676                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 677
 678         return 0;
 679 }
 680
 681 static int stmmac_set_coalesce(struct net_device *dev,
 682                                struct ethtool_coalesce *ec)
 683 {
 684         struct stmmac_priv *priv = netdev_priv(dev);
 685         unsigned int rx_riwt;
 686
 687         /* Check not supported parameters  */
 688         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 689             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 690             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 691             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 692             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 693             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 694             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 695             (ec->rx_max_coalesced_frames_high) ||
 696             (ec->tx_max_coalesced_frames_irq) ||
 697             (ec->stats_block_coalesce_usecs) ||
 698             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 699                 return -EOPNOTSUPP;
 700
 701         if (ec->rx_coalesce_usecs == 0)
 702                 return -EINVAL;
 703
 704         if ((ec->tx_coalesce_usecs == 0) &&
 705             (ec->tx_max_coalesced_frames == 0))
 706                 return -EINVAL;
 707
 708         if ((ec->tx_coalesce_usecs > STMMAC_COAL_TX_TIMER) ||
 709             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 710                 return -EINVAL;
 711
 712         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 713
 714         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 715                 return -EINVAL;
 716         else if (!priv->use_riwt)
 717                 return -EOPNOTSUPP;
 718
 719         /* Only copy relevant parameters, ignore all others. */
 720         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 721         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 722         priv->rx_riwt = rx_riwt;
 723         priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
 724
 725         return 0;
 726 }
 727
 728 static const struct ethtool_ops stmmac_ethtool_ops = {
 729         .begin = stmmac_check_if_running,
 730         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 731         .get_settings = stmmac_ethtool_getsettings,
 732         .set_settings = stmmac_ethtool_setsettings,
 733         .get_msglevel = stmmac_ethtool_getmsglevel,
 734         .set_msglevel = stmmac_ethtool_setmsglevel,
 735         .get_regs = stmmac_ethtool_gregs,
 736         .get_regs_len = stmmac_ethtool_get_regs_len,
 737         .get_link = ethtool_op_get_link,
 738         .get_pauseparam = stmmac_get_pauseparam,
 739         .set_pauseparam = stmmac_set_pauseparam,
 740         .get_ethtool_stats = stmmac_get_ethtool_stats,
 741         .get_strings = stmmac_get_strings,
 742         .get_wol = stmmac_get_wol,
 743         .set_wol = stmmac_set_wol,
 744         .get_eee = stmmac_ethtool_op_get_eee,
 745         .set_eee = stmmac_ethtool_op_set_eee,
 746         .get_sset_count = stmmac_get_sset_count,
 747         .get_ts_info = ethtool_op_get_ts_info,
 748         .get_coalesce = stmmac_get_coalesce,
 749         .set_coalesce = stmmac_set_coalesce,
 750 };
 751
 752 void stmmac_set_ethtool_ops(struct net_device *netdev)
 753 {
 754         SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
 755 }