linux/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
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   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
  40struct 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
  50static 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
 147static 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
 230static 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
 244static 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
 329static 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
 365static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 366{
 367        struct stmmac_priv *priv = netdev_priv(dev);
 368        return priv->msg_enable;
 369}
 370
 371static 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
 378static int stmmac_check_if_running(struct net_device *dev)
 379{
 380        if (!netif_running(dev))
 381                return -EBUSY;
 382        return 0;
 383}
 384
 385static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 386{
 387        return REG_SPACE_SIZE;
 388}
 389
 390static 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
 421static void
 422stmmac_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
 441static int
 442stmmac_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
 470static 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
 508static 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
 526static 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. */
 553static 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
 565static 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
 598static 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
 613static 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
 638static 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
 648static 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
 658static 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
 672static 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
 719static 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->hwts_tx_en) && (priv->hwts_rx_en)) {
 725
 726                info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE |
 727                                        SOF_TIMESTAMPING_RX_HARDWARE |
 728                                        SOF_TIMESTAMPING_RAW_HARDWARE;
 729
 730                if (priv->ptp_clock)
 731                        info->phc_index = ptp_clock_index(priv->ptp_clock);
 732
 733                info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 734
 735                info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 736                                    (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 737                                    (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 738                                    (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 739                                    (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 740                                    (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 741                                    (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 742                                    (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 743                                    (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 744                                    (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 745                                    (1 << HWTSTAMP_FILTER_ALL));
 746                return 0;
 747        } else
 748                return ethtool_op_get_ts_info(dev, info);
 749}
 750
 751static const struct ethtool_ops stmmac_ethtool_ops = {
 752        .begin = stmmac_check_if_running,
 753        .get_drvinfo = stmmac_ethtool_getdrvinfo,
 754        .get_settings = stmmac_ethtool_getsettings,
 755        .set_settings = stmmac_ethtool_setsettings,
 756        .get_msglevel = stmmac_ethtool_getmsglevel,
 757        .set_msglevel = stmmac_ethtool_setmsglevel,
 758        .get_regs = stmmac_ethtool_gregs,
 759        .get_regs_len = stmmac_ethtool_get_regs_len,
 760        .get_link = ethtool_op_get_link,
 761        .get_pauseparam = stmmac_get_pauseparam,
 762        .set_pauseparam = stmmac_set_pauseparam,
 763        .get_ethtool_stats = stmmac_get_ethtool_stats,
 764        .get_strings = stmmac_get_strings,
 765        .get_wol = stmmac_get_wol,
 766        .set_wol = stmmac_set_wol,
 767        .get_eee = stmmac_ethtool_op_get_eee,
 768        .set_eee = stmmac_ethtool_op_set_eee,
 769        .get_sset_count = stmmac_get_sset_count,
 770        .get_ts_info = stmmac_get_ts_info,
 771        .get_coalesce = stmmac_get_coalesce,
 772        .set_coalesce = stmmac_set_coalesce,
 773};
 774
 775void stmmac_set_ethtool_ops(struct net_device *netdev)
 776{
 777        netdev->ethtool_ops = &stmmac_ethtool_ops;
 778}
 779