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 <linux/net_tstamp.h>
  31 #include <asm/io.h>
  32
  33 #include "stmmac.h"
  34 #include "dwmac_dma.h"
  35
  36 #define REG_SPACE_SIZE  0x1054
  37 #define MAC100_ETHTOOL_NAME     "st_mac100"
  38 #define GMAC_ETHTOOL_NAME       "st_gmac"
  39
  40 struct stmmac_stats {
  41         char stat_string[ETH_GSTRING_LEN];
  42         int sizeof_stat;
  43         int stat_offset;
  44 };
  45
  46 #define STMMAC_STAT(m)  \
  47         { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m),       \
  48         offsetof(struct stmmac_priv, xstats.m)}
  49
  50 static const struct stmmac_stats stmmac_gstrings_stats[] = {
  51         /* Transmit errors */
  52         STMMAC_STAT(tx_underflow),
  53         STMMAC_STAT(tx_carrier),
  54         STMMAC_STAT(tx_losscarrier),
  55         STMMAC_STAT(vlan_tag),
  56         STMMAC_STAT(tx_deferred),
  57         STMMAC_STAT(tx_vlan),
  58         STMMAC_STAT(tx_jabber),
  59         STMMAC_STAT(tx_frame_flushed),
  60         STMMAC_STAT(tx_payload_error),
  61         STMMAC_STAT(tx_ip_header_error),
  62         /* Receive errors */
  63         STMMAC_STAT(rx_desc),
  64         STMMAC_STAT(sa_filter_fail),
  65         STMMAC_STAT(overflow_error),
  66         STMMAC_STAT(ipc_csum_error),
  67         STMMAC_STAT(rx_collision),
  68         STMMAC_STAT(rx_crc),
  69         STMMAC_STAT(dribbling_bit),
  70         STMMAC_STAT(rx_length),
  71         STMMAC_STAT(rx_mii),
  72         STMMAC_STAT(rx_multicast),
  73         STMMAC_STAT(rx_gmac_overflow),
  74         STMMAC_STAT(rx_watchdog),
  75         STMMAC_STAT(da_rx_filter_fail),
  76         STMMAC_STAT(sa_rx_filter_fail),
  77         STMMAC_STAT(rx_missed_cntr),
  78         STMMAC_STAT(rx_overflow_cntr),
  79         STMMAC_STAT(rx_vlan),
  80         /* Tx/Rx IRQ error info */
  81         STMMAC_STAT(tx_undeflow_irq),
  82         STMMAC_STAT(tx_process_stopped_irq),
  83         STMMAC_STAT(tx_jabber_irq),
  84         STMMAC_STAT(rx_overflow_irq),
  85         STMMAC_STAT(rx_buf_unav_irq),
  86         STMMAC_STAT(rx_process_stopped_irq),
  87         STMMAC_STAT(rx_watchdog_irq),
  88         STMMAC_STAT(tx_early_irq),
  89         STMMAC_STAT(fatal_bus_error_irq),
  90         /* Tx/Rx IRQ Events */
  91         STMMAC_STAT(rx_early_irq),
  92         STMMAC_STAT(threshold),
  93         STMMAC_STAT(tx_pkt_n),
  94         STMMAC_STAT(rx_pkt_n),
  95         STMMAC_STAT(normal_irq_n),
  96         STMMAC_STAT(rx_normal_irq_n),
  97         STMMAC_STAT(napi_poll),
  98         STMMAC_STAT(tx_normal_irq_n),
  99         STMMAC_STAT(tx_clean),
 100         STMMAC_STAT(tx_reset_ic_bit),
 101         STMMAC_STAT(irq_receive_pmt_irq_n),
 102         /* MMC info */
 103         STMMAC_STAT(mmc_tx_irq_n),
 104         STMMAC_STAT(mmc_rx_irq_n),
 105         STMMAC_STAT(mmc_rx_csum_offload_irq_n),
 106         /* EEE */
 107         STMMAC_STAT(irq_tx_path_in_lpi_mode_n),
 108         STMMAC_STAT(irq_tx_path_exit_lpi_mode_n),
 109         STMMAC_STAT(irq_rx_path_in_lpi_mode_n),
 110         STMMAC_STAT(irq_rx_path_exit_lpi_mode_n),
 111         STMMAC_STAT(phy_eee_wakeup_error_n),
 112         /* Extended RDES status */
 113         STMMAC_STAT(ip_hdr_err),
 114         STMMAC_STAT(ip_payload_err),
 115         STMMAC_STAT(ip_csum_bypassed),
 116         STMMAC_STAT(ipv4_pkt_rcvd),
 117         STMMAC_STAT(ipv6_pkt_rcvd),
 118         STMMAC_STAT(rx_msg_type_ext_no_ptp),
 119         STMMAC_STAT(rx_msg_type_sync),
 120         STMMAC_STAT(rx_msg_type_follow_up),
 121         STMMAC_STAT(rx_msg_type_delay_req),
 122         STMMAC_STAT(rx_msg_type_delay_resp),
 123         STMMAC_STAT(rx_msg_type_pdelay_req),
 124         STMMAC_STAT(rx_msg_type_pdelay_resp),
 125         STMMAC_STAT(rx_msg_type_pdelay_follow_up),
 126         STMMAC_STAT(ptp_frame_type),
 127         STMMAC_STAT(ptp_ver),
 128         STMMAC_STAT(timestamp_dropped),
 129         STMMAC_STAT(av_pkt_rcvd),
 130         STMMAC_STAT(av_tagged_pkt_rcvd),
 131         STMMAC_STAT(vlan_tag_priority_val),
 132         STMMAC_STAT(l3_filter_match),
 133         STMMAC_STAT(l4_filter_match),
 134         STMMAC_STAT(l3_l4_filter_no_match),
 135         /* PCS */
 136         STMMAC_STAT(irq_pcs_ane_n),
 137         STMMAC_STAT(irq_pcs_link_n),
 138         STMMAC_STAT(irq_rgmii_n),
 139 };
 140 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 141
 142 /* HW MAC Management counters (if supported) */
 143 #define STMMAC_MMC_STAT(m)      \
 144         { #m, FIELD_SIZEOF(struct stmmac_counters, m),  \
 145         offsetof(struct stmmac_priv, mmc.m)}
 146
 147 static const struct stmmac_stats stmmac_mmc[] = {
 148         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 149         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 150         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 151         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 152         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 153         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 154         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 155         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 156         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 157         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 158         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 159         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 160         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 161         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 162         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 163         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 164         STMMAC_MMC_STAT(mmc_tx_deferred),
 165         STMMAC_MMC_STAT(mmc_tx_latecol),
 166         STMMAC_MMC_STAT(mmc_tx_exesscol),
 167         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 168         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 169         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 170         STMMAC_MMC_STAT(mmc_tx_excessdef),
 171         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 172         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 173         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 174         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 175         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 176         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 177         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 178         STMMAC_MMC_STAT(mmc_rx_crc_error),
 179         STMMAC_MMC_STAT(mmc_rx_align_error),
 180         STMMAC_MMC_STAT(mmc_rx_run_error),
 181         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 182         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 183         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 184         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 185         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 186         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 187         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 188         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 189         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 190         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 191         STMMAC_MMC_STAT(mmc_rx_length_error),
 192         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 193         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 194         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 195         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 196         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 197         STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
 198         STMMAC_MMC_STAT(mmc_rx_ipc_intr),
 199         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 200         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 201         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 202         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 203         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 204         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 205         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 206         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 207         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 208         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 209         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 210         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 211         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 212         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 213         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 214         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 215         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 216         STMMAC_MMC_STAT(mmc_rx_udp_err),
 217         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 218         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 219         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 220         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 221         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 222         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 223         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 224         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 225         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 226         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 227 };
 228 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
 229
 230 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 231                                       struct ethtool_drvinfo *info)
 232 {
 233         struct stmmac_priv *priv = netdev_priv(dev);
 234
 235         if (priv->plat->has_gmac)
 236                 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 237         else
 238                 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 239                         sizeof(info->driver));
 240
 241         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 242 }
 243
 244 static int stmmac_ethtool_getsettings(struct net_device *dev,
 245                                       struct ethtool_cmd *cmd)
 246 {
 247         struct stmmac_priv *priv = netdev_priv(dev);
 248         struct phy_device *phy = priv->phydev;
 249         int rc;
 250
 251         if ((priv->pcs & STMMAC_PCS_RGMII) || (priv->pcs & STMMAC_PCS_SGMII)) {
 252                 struct rgmii_adv adv;
 253
 254                 if (!priv->xstats.pcs_link) {
 255                         ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 256                         cmd->duplex = DUPLEX_UNKNOWN;
 257                         return 0;
 258                 }
 259                 cmd->duplex = priv->xstats.pcs_duplex;
 260
 261                 ethtool_cmd_speed_set(cmd, priv->xstats.pcs_speed);
 262
 263                 /* Get and convert ADV/LP_ADV from the HW AN registers */
 264                 if (!priv->hw->mac->get_adv)
 265                         return -EOPNOTSUPP;     /* should never happen indeed */
 266
 267                 priv->hw->mac->get_adv(priv->hw, &adv);
 268
 269                 /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 270
 271                 if (adv.pause & STMMAC_PCS_PAUSE)
 272                         cmd->advertising |= ADVERTISED_Pause;
 273                 if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
 274                         cmd->advertising |= ADVERTISED_Asym_Pause;
 275                 if (adv.lp_pause & STMMAC_PCS_PAUSE)
 276                         cmd->lp_advertising |= ADVERTISED_Pause;
 277                 if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
 278                         cmd->lp_advertising |= ADVERTISED_Asym_Pause;
 279
 280                 /* Reg49[3] always set because ANE is always supported */
 281                 cmd->autoneg = ADVERTISED_Autoneg;
 282                 cmd->supported |= SUPPORTED_Autoneg;
 283                 cmd->advertising |= ADVERTISED_Autoneg;
 284                 cmd->lp_advertising |= ADVERTISED_Autoneg;
 285
 286                 if (adv.duplex) {
 287                         cmd->supported |= (SUPPORTED_1000baseT_Full |
 288                                            SUPPORTED_100baseT_Full |
 289                                            SUPPORTED_10baseT_Full);
 290                         cmd->advertising |= (ADVERTISED_1000baseT_Full |
 291                                              ADVERTISED_100baseT_Full |
 292                                              ADVERTISED_10baseT_Full);
 293                 } else {
 294                         cmd->supported |= (SUPPORTED_1000baseT_Half |
 295                                            SUPPORTED_100baseT_Half |
 296                                            SUPPORTED_10baseT_Half);
 297                         cmd->advertising |= (ADVERTISED_1000baseT_Half |
 298                                              ADVERTISED_100baseT_Half |
 299                                              ADVERTISED_10baseT_Half);
 300                 }
 301                 if (adv.lp_duplex)
 302                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Full |
 303                                                 ADVERTISED_100baseT_Full |
 304                                                 ADVERTISED_10baseT_Full);
 305                 else
 306                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Half |
 307                                                 ADVERTISED_100baseT_Half |
 308                                                 ADVERTISED_10baseT_Half);
 309                 cmd->port = PORT_OTHER;
 310
 311                 return 0;
 312         }
 313
 314         if (phy == NULL) {
 315                 pr_err("%s: %s: PHY is not registered\n",
 316                        __func__, dev->name);
 317                 return -ENODEV;
 318         }
 319         if (!netif_running(dev)) {
 320                 pr_err("%s: interface is disabled: we cannot track "
 321                 "link speed / duplex setting\n", dev->name);
 322                 return -EBUSY;
 323         }
 324         cmd->transceiver = XCVR_INTERNAL;
 325         rc = phy_ethtool_gset(phy, cmd);
 326         return rc;
 327 }
 328
 329 static int stmmac_ethtool_setsettings(struct net_device *dev,
 330                                       struct ethtool_cmd *cmd)
 331 {
 332         struct stmmac_priv *priv = netdev_priv(dev);
 333         struct phy_device *phy = priv->phydev;
 334         int rc;
 335
 336         if ((priv->pcs & STMMAC_PCS_RGMII) || (priv->pcs & STMMAC_PCS_SGMII)) {
 337                 u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 338
 339                 /* Only support ANE */
 340                 if (cmd->autoneg != AUTONEG_ENABLE)
 341                         return -EINVAL;
 342
 343                 mask &= (ADVERTISED_1000baseT_Half |
 344                         ADVERTISED_1000baseT_Full |
 345                         ADVERTISED_100baseT_Half |
 346                         ADVERTISED_100baseT_Full |
 347                         ADVERTISED_10baseT_Half |
 348                         ADVERTISED_10baseT_Full);
 349
 350                 spin_lock(&priv->lock);
 351                 if (priv->hw->mac->ctrl_ane)
 352                         priv->hw->mac->ctrl_ane(priv->hw, 1);
 353                 spin_unlock(&priv->lock);
 354
 355                 return 0;
 356         }
 357
 358         spin_lock(&priv->lock);
 359         rc = phy_ethtool_sset(phy, cmd);
 360         spin_unlock(&priv->lock);
 361
 362         return rc;
 363 }
 364
 365 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 366 {
 367         struct stmmac_priv *priv = netdev_priv(dev);
 368         return priv->msg_enable;
 369 }
 370
 371 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 372 {
 373         struct stmmac_priv *priv = netdev_priv(dev);
 374         priv->msg_enable = level;
 375
 376 }
 377
 378 static int stmmac_check_if_running(struct net_device *dev)
 379 {
 380         if (!netif_running(dev))
 381                 return -EBUSY;
 382         return 0;
 383 }
 384
 385 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 386 {
 387         return REG_SPACE_SIZE;
 388 }
 389
 390 static void stmmac_ethtool_gregs(struct net_device *dev,
 391                           struct ethtool_regs *regs, void *space)
 392 {
 393         int i;
 394         u32 *reg_space = (u32 *) space;
 395
 396         struct stmmac_priv *priv = netdev_priv(dev);
 397
 398         memset(reg_space, 0x0, REG_SPACE_SIZE);
 399
 400         if (!priv->plat->has_gmac) {
 401                 /* MAC registers */
 402                 for (i = 0; i < 12; i++)
 403                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 404                 /* DMA registers */
 405                 for (i = 0; i < 9; i++)
 406                         reg_space[i + 12] =
 407                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 408                 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
 409                 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
 410         } else {
 411                 /* MAC registers */
 412                 for (i = 0; i < 55; i++)
 413                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 414                 /* DMA registers */
 415                 for (i = 0; i < 22; i++)
 416                         reg_space[i + 55] =
 417                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 418         }
 419 }
 420
 421 static void
 422 stmmac_get_pauseparam(struct net_device *netdev,
 423                       struct ethtool_pauseparam *pause)
 424 {
 425         struct stmmac_priv *priv = netdev_priv(netdev);
 426
 427         if (priv->pcs)  /* FIXME */
 428                 return;
 429
 430         pause->rx_pause = 0;
 431         pause->tx_pause = 0;
 432         pause->autoneg = priv->phydev->autoneg;
 433
 434         if (priv->flow_ctrl & FLOW_RX)
 435                 pause->rx_pause = 1;
 436         if (priv->flow_ctrl & FLOW_TX)
 437                 pause->tx_pause = 1;
 438
 439 }
 440
 441 static int
 442 stmmac_set_pauseparam(struct net_device *netdev,
 443                       struct ethtool_pauseparam *pause)
 444 {
 445         struct stmmac_priv *priv = netdev_priv(netdev);
 446         struct phy_device *phy = priv->phydev;
 447         int new_pause = FLOW_OFF;
 448         int ret = 0;
 449
 450         if (priv->pcs)  /* FIXME */
 451                 return -EOPNOTSUPP;
 452
 453         if (pause->rx_pause)
 454                 new_pause |= FLOW_RX;
 455         if (pause->tx_pause)
 456                 new_pause |= FLOW_TX;
 457
 458         priv->flow_ctrl = new_pause;
 459         phy->autoneg = pause->autoneg;
 460
 461         if (phy->autoneg) {
 462                 if (netif_running(netdev))
 463                         ret = phy_start_aneg(phy);
 464         } else
 465                 priv->hw->mac->flow_ctrl(priv->hw, phy->duplex,
 466                                          priv->flow_ctrl, priv->pause);
 467         return ret;
 468 }
 469
 470 static void stmmac_get_ethtool_stats(struct net_device *dev,
 471                                  struct ethtool_stats *dummy, u64 *data)
 472 {
 473         struct stmmac_priv *priv = netdev_priv(dev);
 474         int i, j = 0;
 475
 476         /* Update the DMA HW counters for dwmac10/100 */
 477         if (!priv->plat->has_gmac)
 478                 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
 479                                                  (void *) &priv->xstats,
 480                                                  priv->ioaddr);
 481         else {
 482                 /* If supported, for new GMAC chips expose the MMC counters */
 483                 if (priv->dma_cap.rmon) {
 484                         dwmac_mmc_read(priv->ioaddr, &priv->mmc);
 485
 486                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 487                                 char *p;
 488                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 489
 490                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 491                                              sizeof(u64)) ? (*(u64 *)p) :
 492                                              (*(u32 *)p);
 493                         }
 494                 }
 495                 if (priv->eee_enabled) {
 496                         int val = phy_get_eee_err(priv->phydev);
 497                         if (val)
 498                                 priv->xstats.phy_eee_wakeup_error_n = val;
 499                 }
 500         }
 501         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 502                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 503                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 504                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 505         }
 506 }
 507
 508 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 509 {
 510         struct stmmac_priv *priv = netdev_priv(netdev);
 511         int len;
 512
 513         switch (sset) {
 514         case ETH_SS_STATS:
 515                 len = STMMAC_STATS_LEN;
 516
 517                 if (priv->dma_cap.rmon)
 518                         len += STMMAC_MMC_STATS_LEN;
 519
 520                 return len;
 521         default:
 522                 return -EOPNOTSUPP;
 523         }
 524 }
 525
 526 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 527 {
 528         int i;
 529         u8 *p = data;
 530         struct stmmac_priv *priv = netdev_priv(dev);
 531
 532         switch (stringset) {
 533         case ETH_SS_STATS:
 534                 if (priv->dma_cap.rmon)
 535                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 536                                 memcpy(p, stmmac_mmc[i].stat_string,
 537                                        ETH_GSTRING_LEN);
 538                                 p += ETH_GSTRING_LEN;
 539                         }
 540                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 541                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 542                                 ETH_GSTRING_LEN);
 543                         p += ETH_GSTRING_LEN;
 544                 }
 545                 break;
 546         default:
 547                 WARN_ON(1);
 548                 break;
 549         }
 550 }
 551
 552 /* Currently only support WOL through Magic packet. */
 553 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 554 {
 555         struct stmmac_priv *priv = netdev_priv(dev);
 556
 557         spin_lock_irq(&priv->lock);
 558         if (device_can_wakeup(priv->device)) {
 559                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 560                 wol->wolopts = priv->wolopts;
 561         }
 562         spin_unlock_irq(&priv->lock);
 563 }
 564
 565 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 566 {
 567         struct stmmac_priv *priv = netdev_priv(dev);
 568         u32 support = WAKE_MAGIC | WAKE_UCAST;
 569
 570         /* By default almost all GMAC devices support the WoL via
 571          * magic frame but we can disable it if the HW capability
 572          * register shows no support for pmt_magic_frame. */
 573         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 574                 wol->wolopts &= ~WAKE_MAGIC;
 575
 576         if (!device_can_wakeup(priv->device))
 577                 return -EINVAL;
 578
 579         if (wol->wolopts & ~support)
 580                 return -EINVAL;
 581
 582         if (wol->wolopts) {
 583                 pr_info("stmmac: wakeup enable\n");
 584                 device_set_wakeup_enable(priv->device, 1);
 585                 enable_irq_wake(priv->wol_irq);
 586         } else {
 587                 device_set_wakeup_enable(priv->device, 0);
 588                 disable_irq_wake(priv->wol_irq);
 589         }
 590
 591         spin_lock_irq(&priv->lock);
 592         priv->wolopts = wol->wolopts;
 593         spin_unlock_irq(&priv->lock);
 594
 595         return 0;
 596 }
 597
 598 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 599                                      struct ethtool_eee *edata)
 600 {
 601         struct stmmac_priv *priv = netdev_priv(dev);
 602
 603         if (!priv->dma_cap.eee)
 604                 return -EOPNOTSUPP;
 605
 606         edata->eee_enabled = priv->eee_enabled;
 607         edata->eee_active = priv->eee_active;
 608         edata->tx_lpi_timer = priv->tx_lpi_timer;
 609
 610         return phy_ethtool_get_eee(priv->phydev, edata);
 611 }
 612
 613 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 614                                      struct ethtool_eee *edata)
 615 {
 616         struct stmmac_priv *priv = netdev_priv(dev);
 617
 618         priv->eee_enabled = edata->eee_enabled;
 619
 620         if (!priv->eee_enabled)
 621                 stmmac_disable_eee_mode(priv);
 622         else {
 623                 /* We are asking for enabling the EEE but it is safe
 624                  * to verify all by invoking the eee_init function.
 625                  * In case of failure it will return an error.
 626                  */
 627                 priv->eee_enabled = stmmac_eee_init(priv);
 628                 if (!priv->eee_enabled)
 629                         return -EOPNOTSUPP;
 630
 631                 /* Do not change tx_lpi_timer in case of failure */
 632                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 633         }
 634
 635         return phy_ethtool_set_eee(priv->phydev, edata);
 636 }
 637
 638 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 639 {
 640         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 641
 642         if (!clk)
 643                 return 0;
 644
 645         return (usec * (clk / 1000000)) / 256;
 646 }
 647
 648 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 649 {
 650         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 651
 652         if (!clk)
 653                 return 0;
 654
 655         return (riwt * 256) / (clk / 1000000);
 656 }
 657
 658 static int stmmac_get_coalesce(struct net_device *dev,
 659                                struct ethtool_coalesce *ec)
 660 {
 661         struct stmmac_priv *priv = netdev_priv(dev);
 662
 663         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 664         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 665
 666         if (priv->use_riwt)
 667                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 668
 669         return 0;
 670 }
 671
 672 static int stmmac_set_coalesce(struct net_device *dev,
 673                                struct ethtool_coalesce *ec)
 674 {
 675         struct stmmac_priv *priv = netdev_priv(dev);
 676         unsigned int rx_riwt;
 677
 678         /* Check not supported parameters  */
 679         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 680             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 681             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 682             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 683             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 684             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 685             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 686             (ec->rx_max_coalesced_frames_high) ||
 687             (ec->tx_max_coalesced_frames_irq) ||
 688             (ec->stats_block_coalesce_usecs) ||
 689             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 690                 return -EOPNOTSUPP;
 691
 692         if (ec->rx_coalesce_usecs == 0)
 693                 return -EINVAL;
 694
 695         if ((ec->tx_coalesce_usecs == 0) &&
 696             (ec->tx_max_coalesced_frames == 0))
 697                 return -EINVAL;
 698
 699         if ((ec->tx_coalesce_usecs > STMMAC_MAX_COAL_TX_TICK) ||
 700             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 701                 return -EINVAL;
 702
 703         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 704
 705         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 706                 return -EINVAL;
 707         else if (!priv->use_riwt)
 708                 return -EOPNOTSUPP;
 709
 710         /* Only copy relevant parameters, ignore all others. */
 711         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 712         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 713         priv->rx_riwt = rx_riwt;
 714         priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
 715
 716         return 0;
 717 }
 718
 719 static int stmmac_get_ts_info(struct net_device *dev,
 720                               struct ethtool_ts_info *info)
 721 {
 722         struct stmmac_priv *priv = netdev_priv(dev);
 723
 724         if ((priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp)) {
 725
 726                 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
 727                                         SOF_TIMESTAMPING_TX_HARDWARE |
 728                                         SOF_TIMESTAMPING_RX_SOFTWARE |
 729                                         SOF_TIMESTAMPING_RX_HARDWARE |
 730                                         SOF_TIMESTAMPING_SOFTWARE |
 731                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 732
 733                 if (priv->ptp_clock)
 734                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 735
 736                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 737
 738                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 739                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 740                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 741                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 742                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 743                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 744                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 745                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 746                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 747                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 748                                     (1 << HWTSTAMP_FILTER_ALL));
 749                 return 0;
 750         } else
 751                 return ethtool_op_get_ts_info(dev, info);
 752 }
 753
 754 static const struct ethtool_ops stmmac_ethtool_ops = {
 755         .begin = stmmac_check_if_running,
 756         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 757         .get_settings = stmmac_ethtool_getsettings,
 758         .set_settings = stmmac_ethtool_setsettings,
 759         .get_msglevel = stmmac_ethtool_getmsglevel,
 760         .set_msglevel = stmmac_ethtool_setmsglevel,
 761         .get_regs = stmmac_ethtool_gregs,
 762         .get_regs_len = stmmac_ethtool_get_regs_len,
 763         .get_link = ethtool_op_get_link,
 764         .get_pauseparam = stmmac_get_pauseparam,
 765         .set_pauseparam = stmmac_set_pauseparam,
 766         .get_ethtool_stats = stmmac_get_ethtool_stats,
 767         .get_strings = stmmac_get_strings,
 768         .get_wol = stmmac_get_wol,
 769         .set_wol = stmmac_set_wol,
 770         .get_eee = stmmac_ethtool_op_get_eee,
 771         .set_eee = stmmac_ethtool_op_set_eee,
 772         .get_sset_count = stmmac_get_sset_count,
 773         .get_ts_info = stmmac_get_ts_info,
 774         .get_coalesce = stmmac_get_coalesce,
 775         .set_coalesce = stmmac_set_coalesce,
 776 };
 777
 778 void stmmac_set_ethtool_ops(struct net_device *netdev)
 779 {
 780         netdev->ethtool_ops = &stmmac_ethtool_ops;
 781 }