Pileus Git - ~andy/linux/blob - 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         spin_lock_irq(&priv->lock);
 326         rc = phy_ethtool_gset(phy, cmd);
 327         spin_unlock_irq(&priv->lock);
 328         return rc;
 329 }
 330
 331 static int stmmac_ethtool_setsettings(struct net_device *dev,
 332                                       struct ethtool_cmd *cmd)
 333 {
 334         struct stmmac_priv *priv = netdev_priv(dev);
 335         struct phy_device *phy = priv->phydev;
 336         int rc;
 337
 338         if ((priv->pcs & STMMAC_PCS_RGMII) || (priv->pcs & STMMAC_PCS_SGMII)) {
 339                 u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 340
 341                 /* Only support ANE */
 342                 if (cmd->autoneg != AUTONEG_ENABLE)
 343                         return -EINVAL;
 344
 345                 if (cmd->autoneg == AUTONEG_ENABLE) {
 346                         mask &= (ADVERTISED_1000baseT_Half |
 347                         ADVERTISED_1000baseT_Full |
 348                         ADVERTISED_100baseT_Half |
 349                         ADVERTISED_100baseT_Full |
 350                         ADVERTISED_10baseT_Half |
 351                         ADVERTISED_10baseT_Full);
 352
 353                         spin_lock(&priv->lock);
 354                         if (priv->hw->mac->ctrl_ane)
 355                                 priv->hw->mac->ctrl_ane(priv->ioaddr, 1);
 356                         spin_unlock(&priv->lock);
 357                 }
 358
 359                 return 0;
 360         }
 361
 362         spin_lock(&priv->lock);
 363         rc = phy_ethtool_sset(phy, cmd);
 364         spin_unlock(&priv->lock);
 365
 366         return rc;
 367 }
 368
 369 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 370 {
 371         struct stmmac_priv *priv = netdev_priv(dev);
 372         return priv->msg_enable;
 373 }
 374
 375 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 376 {
 377         struct stmmac_priv *priv = netdev_priv(dev);
 378         priv->msg_enable = level;
 379
 380 }
 381
 382 static int stmmac_check_if_running(struct net_device *dev)
 383 {
 384         if (!netif_running(dev))
 385                 return -EBUSY;
 386         return 0;
 387 }
 388
 389 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 390 {
 391         return REG_SPACE_SIZE;
 392 }
 393
 394 static void stmmac_ethtool_gregs(struct net_device *dev,
 395                           struct ethtool_regs *regs, void *space)
 396 {
 397         int i;
 398         u32 *reg_space = (u32 *) space;
 399
 400         struct stmmac_priv *priv = netdev_priv(dev);
 401
 402         memset(reg_space, 0x0, REG_SPACE_SIZE);
 403
 404         if (!priv->plat->has_gmac) {
 405                 /* MAC registers */
 406                 for (i = 0; i < 12; i++)
 407                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 408                 /* DMA registers */
 409                 for (i = 0; i < 9; i++)
 410                         reg_space[i + 12] =
 411                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 412                 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
 413                 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
 414         } else {
 415                 /* MAC registers */
 416                 for (i = 0; i < 55; i++)
 417                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 418                 /* DMA registers */
 419                 for (i = 0; i < 22; i++)
 420                         reg_space[i + 55] =
 421                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 422         }
 423 }
 424
 425 static void
 426 stmmac_get_pauseparam(struct net_device *netdev,
 427                       struct ethtool_pauseparam *pause)
 428 {
 429         struct stmmac_priv *priv = netdev_priv(netdev);
 430
 431         if (priv->pcs)  /* FIXME */
 432                 return;
 433
 434         spin_lock(&priv->lock);
 435
 436         pause->rx_pause = 0;
 437         pause->tx_pause = 0;
 438         pause->autoneg = priv->phydev->autoneg;
 439
 440         if (priv->flow_ctrl & FLOW_RX)
 441                 pause->rx_pause = 1;
 442         if (priv->flow_ctrl & FLOW_TX)
 443                 pause->tx_pause = 1;
 444
 445         spin_unlock(&priv->lock);
 446 }
 447
 448 static int
 449 stmmac_set_pauseparam(struct net_device *netdev,
 450                       struct ethtool_pauseparam *pause)
 451 {
 452         struct stmmac_priv *priv = netdev_priv(netdev);
 453         struct phy_device *phy = priv->phydev;
 454         int new_pause = FLOW_OFF;
 455         int ret = 0;
 456
 457         if (priv->pcs)  /* FIXME */
 458                 return -EOPNOTSUPP;
 459
 460         spin_lock(&priv->lock);
 461
 462         if (pause->rx_pause)
 463                 new_pause |= FLOW_RX;
 464         if (pause->tx_pause)
 465                 new_pause |= FLOW_TX;
 466
 467         priv->flow_ctrl = new_pause;
 468         phy->autoneg = pause->autoneg;
 469
 470         if (phy->autoneg) {
 471                 if (netif_running(netdev))
 472                         ret = phy_start_aneg(phy);
 473         } else
 474                 priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
 475                                          priv->flow_ctrl, priv->pause);
 476         spin_unlock(&priv->lock);
 477         return ret;
 478 }
 479
 480 static void stmmac_get_ethtool_stats(struct net_device *dev,
 481                                  struct ethtool_stats *dummy, u64 *data)
 482 {
 483         struct stmmac_priv *priv = netdev_priv(dev);
 484         int i, j = 0;
 485
 486         /* Update the DMA HW counters for dwmac10/100 */
 487         if (!priv->plat->has_gmac)
 488                 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
 489                                                  (void *) &priv->xstats,
 490                                                  priv->ioaddr);
 491         else {
 492                 /* If supported, for new GMAC chips expose the MMC counters */
 493                 if (priv->dma_cap.rmon) {
 494                         dwmac_mmc_read(priv->ioaddr, &priv->mmc);
 495
 496                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 497                                 char *p;
 498                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 499
 500                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 501                                              sizeof(u64)) ? (*(u64 *)p) :
 502                                              (*(u32 *)p);
 503                         }
 504                 }
 505                 if (priv->eee_enabled) {
 506                         int val = phy_get_eee_err(priv->phydev);
 507                         if (val)
 508                                 priv->xstats.phy_eee_wakeup_error_n = val;
 509                 }
 510         }
 511         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 512                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 513                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 514                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 515         }
 516 }
 517
 518 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 519 {
 520         struct stmmac_priv *priv = netdev_priv(netdev);
 521         int len;
 522
 523         switch (sset) {
 524         case ETH_SS_STATS:
 525                 len = STMMAC_STATS_LEN;
 526
 527                 if (priv->dma_cap.rmon)
 528                         len += STMMAC_MMC_STATS_LEN;
 529
 530                 return len;
 531         default:
 532                 return -EOPNOTSUPP;
 533         }
 534 }
 535
 536 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 537 {
 538         int i;
 539         u8 *p = data;
 540         struct stmmac_priv *priv = netdev_priv(dev);
 541
 542         switch (stringset) {
 543         case ETH_SS_STATS:
 544                 if (priv->dma_cap.rmon)
 545                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 546                                 memcpy(p, stmmac_mmc[i].stat_string,
 547                                        ETH_GSTRING_LEN);
 548                                 p += ETH_GSTRING_LEN;
 549                         }
 550                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 551                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 552                                 ETH_GSTRING_LEN);
 553                         p += ETH_GSTRING_LEN;
 554                 }
 555                 break;
 556         default:
 557                 WARN_ON(1);
 558                 break;
 559         }
 560 }
 561
 562 /* Currently only support WOL through Magic packet. */
 563 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 564 {
 565         struct stmmac_priv *priv = netdev_priv(dev);
 566
 567         spin_lock_irq(&priv->lock);
 568         if (device_can_wakeup(priv->device)) {
 569                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 570                 wol->wolopts = priv->wolopts;
 571         }
 572         spin_unlock_irq(&priv->lock);
 573 }
 574
 575 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 576 {
 577         struct stmmac_priv *priv = netdev_priv(dev);
 578         u32 support = WAKE_MAGIC | WAKE_UCAST;
 579
 580         /* By default almost all GMAC devices support the WoL via
 581          * magic frame but we can disable it if the HW capability
 582          * register shows no support for pmt_magic_frame. */
 583         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 584                 wol->wolopts &= ~WAKE_MAGIC;
 585
 586         if (!device_can_wakeup(priv->device))
 587                 return -EINVAL;
 588
 589         if (wol->wolopts & ~support)
 590                 return -EINVAL;
 591
 592         if (wol->wolopts) {
 593                 pr_info("stmmac: wakeup enable\n");
 594                 device_set_wakeup_enable(priv->device, 1);
 595                 enable_irq_wake(priv->wol_irq);
 596         } else {
 597                 device_set_wakeup_enable(priv->device, 0);
 598                 disable_irq_wake(priv->wol_irq);
 599         }
 600
 601         spin_lock_irq(&priv->lock);
 602         priv->wolopts = wol->wolopts;
 603         spin_unlock_irq(&priv->lock);
 604
 605         return 0;
 606 }
 607
 608 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 609                                      struct ethtool_eee *edata)
 610 {
 611         struct stmmac_priv *priv = netdev_priv(dev);
 612
 613         if (!priv->dma_cap.eee)
 614                 return -EOPNOTSUPP;
 615
 616         edata->eee_enabled = priv->eee_enabled;
 617         edata->eee_active = priv->eee_active;
 618         edata->tx_lpi_timer = priv->tx_lpi_timer;
 619
 620         return phy_ethtool_get_eee(priv->phydev, edata);
 621 }
 622
 623 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 624                                      struct ethtool_eee *edata)
 625 {
 626         struct stmmac_priv *priv = netdev_priv(dev);
 627
 628         priv->eee_enabled = edata->eee_enabled;
 629
 630         if (!priv->eee_enabled)
 631                 stmmac_disable_eee_mode(priv);
 632         else {
 633                 /* We are asking for enabling the EEE but it is safe
 634                  * to verify all by invoking the eee_init function.
 635                  * In case of failure it will return an error.
 636                  */
 637                 priv->eee_enabled = stmmac_eee_init(priv);
 638                 if (!priv->eee_enabled)
 639                         return -EOPNOTSUPP;
 640
 641                 /* Do not change tx_lpi_timer in case of failure */
 642                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 643         }
 644
 645         return phy_ethtool_set_eee(priv->phydev, edata);
 646 }
 647
 648 static u32 stmmac_usec2riwt(u32 usec, 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 (usec * (clk / 1000000)) / 256;
 656 }
 657
 658 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 659 {
 660         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 661
 662         if (!clk)
 663                 return 0;
 664
 665         return (riwt * 256) / (clk / 1000000);
 666 }
 667
 668 static int stmmac_get_coalesce(struct net_device *dev,
 669                                struct ethtool_coalesce *ec)
 670 {
 671         struct stmmac_priv *priv = netdev_priv(dev);
 672
 673         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 674         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 675
 676         if (priv->use_riwt)
 677                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 678
 679         return 0;
 680 }
 681
 682 static int stmmac_set_coalesce(struct net_device *dev,
 683                                struct ethtool_coalesce *ec)
 684 {
 685         struct stmmac_priv *priv = netdev_priv(dev);
 686         unsigned int rx_riwt;
 687
 688         /* Check not supported parameters  */
 689         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 690             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 691             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 692             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 693             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 694             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 695             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 696             (ec->rx_max_coalesced_frames_high) ||
 697             (ec->tx_max_coalesced_frames_irq) ||
 698             (ec->stats_block_coalesce_usecs) ||
 699             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 700                 return -EOPNOTSUPP;
 701
 702         if (ec->rx_coalesce_usecs == 0)
 703                 return -EINVAL;
 704
 705         if ((ec->tx_coalesce_usecs == 0) &&
 706             (ec->tx_max_coalesced_frames == 0))
 707                 return -EINVAL;
 708
 709         if ((ec->tx_coalesce_usecs > STMMAC_COAL_TX_TIMER) ||
 710             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 711                 return -EINVAL;
 712
 713         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 714
 715         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 716                 return -EINVAL;
 717         else if (!priv->use_riwt)
 718                 return -EOPNOTSUPP;
 719
 720         /* Only copy relevant parameters, ignore all others. */
 721         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 722         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 723         priv->rx_riwt = rx_riwt;
 724         priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
 725
 726         return 0;
 727 }
 728
 729 static int stmmac_get_ts_info(struct net_device *dev,
 730                               struct ethtool_ts_info *info)
 731 {
 732         struct stmmac_priv *priv = netdev_priv(dev);
 733
 734         if ((priv->hwts_tx_en) && (priv->hwts_rx_en)) {
 735
 736                 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
 737                                         SOF_TIMESTAMPING_RX_HARDWARE |
 738                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 739
 740                 if (priv->ptp_clock)
 741                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 742
 743                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 744
 745                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 746                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 747                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 748                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 749                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 750                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 751                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 752                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 753                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 754                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 755                                     (1 << HWTSTAMP_FILTER_ALL));
 756                 return 0;
 757         } else
 758                 return ethtool_op_get_ts_info(dev, info);
 759 }
 760
 761 static const struct ethtool_ops stmmac_ethtool_ops = {
 762         .begin = stmmac_check_if_running,
 763         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 764         .get_settings = stmmac_ethtool_getsettings,
 765         .set_settings = stmmac_ethtool_setsettings,
 766         .get_msglevel = stmmac_ethtool_getmsglevel,
 767         .set_msglevel = stmmac_ethtool_setmsglevel,
 768         .get_regs = stmmac_ethtool_gregs,
 769         .get_regs_len = stmmac_ethtool_get_regs_len,
 770         .get_link = ethtool_op_get_link,
 771         .get_pauseparam = stmmac_get_pauseparam,
 772         .set_pauseparam = stmmac_set_pauseparam,
 773         .get_ethtool_stats = stmmac_get_ethtool_stats,
 774         .get_strings = stmmac_get_strings,
 775         .get_wol = stmmac_get_wol,
 776         .set_wol = stmmac_set_wol,
 777         .get_eee = stmmac_ethtool_op_get_eee,
 778         .set_eee = stmmac_ethtool_op_set_eee,
 779         .get_sset_count = stmmac_get_sset_count,
 780         .get_ts_info = stmmac_get_ts_info,
 781         .get_coalesce = stmmac_get_coalesce,
 782         .set_coalesce = stmmac_set_coalesce,
 783 };
 784
 785 void stmmac_set_ethtool_ops(struct net_device *netdev)
 786 {
 787         SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
 788 }