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_errror),
 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                         priv->hw->mac->get_adv(priv->ioaddr, &adv);
 266                 else
 267                         return -EOPNOTSUPP;     /* should never happen indeed */
 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                 if (cmd->autoneg == AUTONEG_ENABLE) {
 344                         mask &= (ADVERTISED_1000baseT_Half |
 345                         ADVERTISED_1000baseT_Full |
 346                         ADVERTISED_100baseT_Half |
 347                         ADVERTISED_100baseT_Full |
 348                         ADVERTISED_10baseT_Half |
 349                         ADVERTISED_10baseT_Full);
 350
 351                         spin_lock(&priv->lock);
 352                         if (priv->hw->mac->ctrl_ane)
 353                                 priv->hw->mac->ctrl_ane(priv->ioaddr, 1);
 354                         spin_unlock(&priv->lock);
 355                 }
 356
 357                 return 0;
 358         }
 359
 360         spin_lock(&priv->lock);
 361         rc = phy_ethtool_sset(phy, cmd);
 362         spin_unlock(&priv->lock);
 363
 364         return rc;
 365 }
 366
 367 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 368 {
 369         struct stmmac_priv *priv = netdev_priv(dev);
 370         return priv->msg_enable;
 371 }
 372
 373 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 374 {
 375         struct stmmac_priv *priv = netdev_priv(dev);
 376         priv->msg_enable = level;
 377
 378 }
 379
 380 static int stmmac_check_if_running(struct net_device *dev)
 381 {
 382         if (!netif_running(dev))
 383                 return -EBUSY;
 384         return 0;
 385 }
 386
 387 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 388 {
 389         return REG_SPACE_SIZE;
 390 }
 391
 392 static void stmmac_ethtool_gregs(struct net_device *dev,
 393                           struct ethtool_regs *regs, void *space)
 394 {
 395         int i;
 396         u32 *reg_space = (u32 *) space;
 397
 398         struct stmmac_priv *priv = netdev_priv(dev);
 399
 400         memset(reg_space, 0x0, REG_SPACE_SIZE);
 401
 402         if (!priv->plat->has_gmac) {
 403                 /* MAC registers */
 404                 for (i = 0; i < 12; i++)
 405                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 406                 /* DMA registers */
 407                 for (i = 0; i < 9; i++)
 408                         reg_space[i + 12] =
 409                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 410                 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
 411                 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
 412         } else {
 413                 /* MAC registers */
 414                 for (i = 0; i < 55; i++)
 415                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 416                 /* DMA registers */
 417                 for (i = 0; i < 22; i++)
 418                         reg_space[i + 55] =
 419                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 420         }
 421 }
 422
 423 static void
 424 stmmac_get_pauseparam(struct net_device *netdev,
 425                       struct ethtool_pauseparam *pause)
 426 {
 427         struct stmmac_priv *priv = netdev_priv(netdev);
 428
 429         if (priv->pcs)  /* FIXME */
 430                 return;
 431
 432         pause->rx_pause = 0;
 433         pause->tx_pause = 0;
 434         pause->autoneg = priv->phydev->autoneg;
 435
 436         if (priv->flow_ctrl & FLOW_RX)
 437                 pause->rx_pause = 1;
 438         if (priv->flow_ctrl & FLOW_TX)
 439                 pause->tx_pause = 1;
 440
 441 }
 442
 443 static int
 444 stmmac_set_pauseparam(struct net_device *netdev,
 445                       struct ethtool_pauseparam *pause)
 446 {
 447         struct stmmac_priv *priv = netdev_priv(netdev);
 448         struct phy_device *phy = priv->phydev;
 449         int new_pause = FLOW_OFF;
 450         int ret = 0;
 451
 452         if (priv->pcs)  /* FIXME */
 453                 return -EOPNOTSUPP;
 454
 455         if (pause->rx_pause)
 456                 new_pause |= FLOW_RX;
 457         if (pause->tx_pause)
 458                 new_pause |= FLOW_TX;
 459
 460         priv->flow_ctrl = new_pause;
 461         phy->autoneg = pause->autoneg;
 462
 463         if (phy->autoneg) {
 464                 if (netif_running(netdev))
 465                         ret = phy_start_aneg(phy);
 466         } else
 467                 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
 468                                          priv->flow_ctrl, priv->pause);
 469         return ret;
 470 }
 471
 472 static void stmmac_get_ethtool_stats(struct net_device *dev,
 473                                  struct ethtool_stats *dummy, u64 *data)
 474 {
 475         struct stmmac_priv *priv = netdev_priv(dev);
 476         int i, j = 0;
 477
 478         /* Update the DMA HW counters for dwmac10/100 */
 479         if (!priv->plat->has_gmac)
 480                 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
 481                                                  (void *) &priv->xstats,
 482                                                  priv->ioaddr);
 483         else {
 484                 /* If supported, for new GMAC chips expose the MMC counters */
 485                 if (priv->dma_cap.rmon) {
 486                         dwmac_mmc_read(priv->ioaddr, &priv->mmc);
 487
 488                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 489                                 char *p;
 490                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 491
 492                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 493                                              sizeof(u64)) ? (*(u64 *)p) :
 494                                              (*(u32 *)p);
 495                         }
 496                 }
 497                 if (priv->eee_enabled) {
 498                         int val = phy_get_eee_err(priv->phydev);
 499                         if (val)
 500                                 priv->xstats.phy_eee_wakeup_error_n = val;
 501                 }
 502         }
 503         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 504                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 505                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 506                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 507         }
 508 }
 509
 510 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 511 {
 512         struct stmmac_priv *priv = netdev_priv(netdev);
 513         int len;
 514
 515         switch (sset) {
 516         case ETH_SS_STATS:
 517                 len = STMMAC_STATS_LEN;
 518
 519                 if (priv->dma_cap.rmon)
 520                         len += STMMAC_MMC_STATS_LEN;
 521
 522                 return len;
 523         default:
 524                 return -EOPNOTSUPP;
 525         }
 526 }
 527
 528 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 529 {
 530         int i;
 531         u8 *p = data;
 532         struct stmmac_priv *priv = netdev_priv(dev);
 533
 534         switch (stringset) {
 535         case ETH_SS_STATS:
 536                 if (priv->dma_cap.rmon)
 537                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 538                                 memcpy(p, stmmac_mmc[i].stat_string,
 539                                        ETH_GSTRING_LEN);
 540                                 p += ETH_GSTRING_LEN;
 541                         }
 542                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 543                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 544                                 ETH_GSTRING_LEN);
 545                         p += ETH_GSTRING_LEN;
 546                 }
 547                 break;
 548         default:
 549                 WARN_ON(1);
 550                 break;
 551         }
 552 }
 553
 554 /* Currently only support WOL through Magic packet. */
 555 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 556 {
 557         struct stmmac_priv *priv = netdev_priv(dev);
 558
 559         spin_lock_irq(&priv->lock);
 560         if (device_can_wakeup(priv->device)) {
 561                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 562                 wol->wolopts = priv->wolopts;
 563         }
 564         spin_unlock_irq(&priv->lock);
 565 }
 566
 567 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 568 {
 569         struct stmmac_priv *priv = netdev_priv(dev);
 570         u32 support = WAKE_MAGIC | WAKE_UCAST;
 571
 572         /* By default almost all GMAC devices support the WoL via
 573          * magic frame but we can disable it if the HW capability
 574          * register shows no support for pmt_magic_frame. */
 575         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 576                 wol->wolopts &= ~WAKE_MAGIC;
 577
 578         if (!device_can_wakeup(priv->device))
 579                 return -EINVAL;
 580
 581         if (wol->wolopts & ~support)
 582                 return -EINVAL;
 583
 584         if (wol->wolopts) {
 585                 pr_info("stmmac: wakeup enable\n");
 586                 device_set_wakeup_enable(priv->device, 1);
 587                 enable_irq_wake(priv->wol_irq);
 588         } else {
 589                 device_set_wakeup_enable(priv->device, 0);
 590                 disable_irq_wake(priv->wol_irq);
 591         }
 592
 593         spin_lock_irq(&priv->lock);
 594         priv->wolopts = wol->wolopts;
 595         spin_unlock_irq(&priv->lock);
 596
 597         return 0;
 598 }
 599
 600 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 601                                      struct ethtool_eee *edata)
 602 {
 603         struct stmmac_priv *priv = netdev_priv(dev);
 604
 605         if (!priv->dma_cap.eee)
 606                 return -EOPNOTSUPP;
 607
 608         edata->eee_enabled = priv->eee_enabled;
 609         edata->eee_active = priv->eee_active;
 610         edata->tx_lpi_timer = priv->tx_lpi_timer;
 611
 612         return phy_ethtool_get_eee(priv->phydev, edata);
 613 }
 614
 615 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 616                                      struct ethtool_eee *edata)
 617 {
 618         struct stmmac_priv *priv = netdev_priv(dev);
 619
 620         priv->eee_enabled = edata->eee_enabled;
 621
 622         if (!priv->eee_enabled)
 623                 stmmac_disable_eee_mode(priv);
 624         else {
 625                 /* We are asking for enabling the EEE but it is safe
 626                  * to verify all by invoking the eee_init function.
 627                  * In case of failure it will return an error.
 628                  */
 629                 priv->eee_enabled = stmmac_eee_init(priv);
 630                 if (!priv->eee_enabled)
 631                         return -EOPNOTSUPP;
 632
 633                 /* Do not change tx_lpi_timer in case of failure */
 634                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 635         }
 636
 637         return phy_ethtool_set_eee(priv->phydev, edata);
 638 }
 639
 640 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 641 {
 642         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 643
 644         if (!clk)
 645                 return 0;
 646
 647         return (usec * (clk / 1000000)) / 256;
 648 }
 649
 650 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 651 {
 652         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 653
 654         if (!clk)
 655                 return 0;
 656
 657         return (riwt * 256) / (clk / 1000000);
 658 }
 659
 660 static int stmmac_get_coalesce(struct net_device *dev,
 661                                struct ethtool_coalesce *ec)
 662 {
 663         struct stmmac_priv *priv = netdev_priv(dev);
 664
 665         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 666         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 667
 668         if (priv->use_riwt)
 669                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 670
 671         return 0;
 672 }
 673
 674 static int stmmac_set_coalesce(struct net_device *dev,
 675                                struct ethtool_coalesce *ec)
 676 {
 677         struct stmmac_priv *priv = netdev_priv(dev);
 678         unsigned int rx_riwt;
 679
 680         /* Check not supported parameters  */
 681         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 682             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 683             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 684             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 685             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 686             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 687             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 688             (ec->rx_max_coalesced_frames_high) ||
 689             (ec->tx_max_coalesced_frames_irq) ||
 690             (ec->stats_block_coalesce_usecs) ||
 691             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 692                 return -EOPNOTSUPP;
 693
 694         if (ec->rx_coalesce_usecs == 0)
 695                 return -EINVAL;
 696
 697         if ((ec->tx_coalesce_usecs == 0) &&
 698             (ec->tx_max_coalesced_frames == 0))
 699                 return -EINVAL;
 700
 701         if ((ec->tx_coalesce_usecs > STMMAC_COAL_TX_TIMER) ||
 702             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 703                 return -EINVAL;
 704
 705         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 706
 707         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 708                 return -EINVAL;
 709         else if (!priv->use_riwt)
 710                 return -EOPNOTSUPP;
 711
 712         /* Only copy relevant parameters, ignore all others. */
 713         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 714         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 715         priv->rx_riwt = rx_riwt;
 716         priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
 717
 718         return 0;
 719 }
 720
 721 static int stmmac_get_ts_info(struct net_device *dev,
 722                               struct ethtool_ts_info *info)
 723 {
 724         struct stmmac_priv *priv = netdev_priv(dev);
 725
 726         if ((priv->hwts_tx_en) && (priv->hwts_rx_en)) {
 727
 728                 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
 729                                         SOF_TIMESTAMPING_RX_HARDWARE |
 730                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 731
 732                 if (priv->ptp_clock)
 733                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 734
 735                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 736
 737                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 738                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 739                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 740                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 741                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 742                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 743                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 744                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 745                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 746                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 747                                     (1 << HWTSTAMP_FILTER_ALL));
 748                 return 0;
 749         } else
 750                 return ethtool_op_get_ts_info(dev, info);
 751 }
 752
 753 static const struct ethtool_ops stmmac_ethtool_ops = {
 754         .begin = stmmac_check_if_running,
 755         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 756         .get_settings = stmmac_ethtool_getsettings,
 757         .set_settings = stmmac_ethtool_setsettings,
 758         .get_msglevel = stmmac_ethtool_getmsglevel,
 759         .set_msglevel = stmmac_ethtool_setmsglevel,
 760         .get_regs = stmmac_ethtool_gregs,
 761         .get_regs_len = stmmac_ethtool_get_regs_len,
 762         .get_link = ethtool_op_get_link,
 763         .get_pauseparam = stmmac_get_pauseparam,
 764         .set_pauseparam = stmmac_set_pauseparam,
 765         .get_ethtool_stats = stmmac_get_ethtool_stats,
 766         .get_strings = stmmac_get_strings,
 767         .get_wol = stmmac_get_wol,
 768         .set_wol = stmmac_set_wol,
 769         .get_eee = stmmac_ethtool_op_get_eee,
 770         .set_eee = stmmac_ethtool_op_set_eee,
 771         .get_sset_count = stmmac_get_sset_count,
 772         .get_ts_info = stmmac_get_ts_info,
 773         .get_coalesce = stmmac_get_coalesce,
 774         .set_coalesce = stmmac_set_coalesce,
 775 };
 776
 777 void stmmac_set_ethtool_ops(struct net_device *netdev)
 778 {
 779         netdev->ethtool_ops = &stmmac_ethtool_ops;
 780 }