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_set_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         /* DEBUG */
 140         STMMAC_STAT(mtl_tx_status_fifo_full),
 141         STMMAC_STAT(mtl_tx_fifo_not_empty),
 142         STMMAC_STAT(mmtl_fifo_ctrl),
 143         STMMAC_STAT(mtl_tx_fifo_read_ctrl_write),
 144         STMMAC_STAT(mtl_tx_fifo_read_ctrl_wait),
 145         STMMAC_STAT(mtl_tx_fifo_read_ctrl_read),
 146         STMMAC_STAT(mtl_tx_fifo_read_ctrl_idle),
 147         STMMAC_STAT(mac_tx_in_pause),
 148         STMMAC_STAT(mac_tx_frame_ctrl_xfer),
 149         STMMAC_STAT(mac_tx_frame_ctrl_idle),
 150         STMMAC_STAT(mac_tx_frame_ctrl_wait),
 151         STMMAC_STAT(mac_tx_frame_ctrl_pause),
 152         STMMAC_STAT(mac_gmii_tx_proto_engine),
 153         STMMAC_STAT(mtl_rx_fifo_fill_level_full),
 154         STMMAC_STAT(mtl_rx_fifo_fill_above_thresh),
 155         STMMAC_STAT(mtl_rx_fifo_fill_below_thresh),
 156         STMMAC_STAT(mtl_rx_fifo_fill_level_empty),
 157         STMMAC_STAT(mtl_rx_fifo_read_ctrl_flush),
 158         STMMAC_STAT(mtl_rx_fifo_read_ctrl_read_data),
 159         STMMAC_STAT(mtl_rx_fifo_read_ctrl_status),
 160         STMMAC_STAT(mtl_rx_fifo_read_ctrl_idle),
 161         STMMAC_STAT(mtl_rx_fifo_ctrl_active),
 162         STMMAC_STAT(mac_rx_frame_ctrl_fifo),
 163         STMMAC_STAT(mac_gmii_rx_proto_engine),
 164         /* TSO */
 165         STMMAC_STAT(tx_tso_frames),
 166         STMMAC_STAT(tx_tso_nfrags),
 167 };
 168 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 169
 170 /* HW MAC Management counters (if supported) */
 171 #define STMMAC_MMC_STAT(m)      \
 172         { #m, FIELD_SIZEOF(struct stmmac_counters, m),  \
 173         offsetof(struct stmmac_priv, mmc.m)}
 174
 175 static const struct stmmac_stats stmmac_mmc[] = {
 176         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 177         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 178         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 179         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 180         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 181         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 182         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 183         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 184         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 185         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 186         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 187         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 188         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 189         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 190         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 191         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 192         STMMAC_MMC_STAT(mmc_tx_deferred),
 193         STMMAC_MMC_STAT(mmc_tx_latecol),
 194         STMMAC_MMC_STAT(mmc_tx_exesscol),
 195         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 196         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 197         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 198         STMMAC_MMC_STAT(mmc_tx_excessdef),
 199         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 200         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 201         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 202         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 203         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 204         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 205         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 206         STMMAC_MMC_STAT(mmc_rx_crc_error),
 207         STMMAC_MMC_STAT(mmc_rx_align_error),
 208         STMMAC_MMC_STAT(mmc_rx_run_error),
 209         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 210         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 211         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 212         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 213         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 214         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 215         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 216         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 217         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 218         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 219         STMMAC_MMC_STAT(mmc_rx_length_error),
 220         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 221         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 222         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 223         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 224         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 225         STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
 226         STMMAC_MMC_STAT(mmc_rx_ipc_intr),
 227         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 228         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 229         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 230         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 231         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 232         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 233         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 234         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 235         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 236         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 237         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 238         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 239         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 240         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 241         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 242         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 243         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 244         STMMAC_MMC_STAT(mmc_rx_udp_err),
 245         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 246         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 247         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 248         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 249         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 250         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 251         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 252         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 253         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 254         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 255 };
 256 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
 257
 258 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 259                                       struct ethtool_drvinfo *info)
 260 {
 261         struct stmmac_priv *priv = netdev_priv(dev);
 262
 263         if (priv->plat->has_gmac)
 264                 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 265         else
 266                 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 267                         sizeof(info->driver));
 268
 269         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 270 }
 271
 272 static int stmmac_ethtool_getsettings(struct net_device *dev,
 273                                       struct ethtool_cmd *cmd)
 274 {
 275         struct stmmac_priv *priv = netdev_priv(dev);
 276         struct phy_device *phy = priv->phydev;
 277         int rc;
 278
 279         if (priv->hw->pcs & STMMAC_PCS_RGMII ||
 280             priv->hw->pcs & STMMAC_PCS_SGMII) {
 281                 struct rgmii_adv adv;
 282
 283                 if (!priv->xstats.pcs_link) {
 284                         ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 285                         cmd->duplex = DUPLEX_UNKNOWN;
 286                         return 0;
 287                 }
 288                 cmd->duplex = priv->xstats.pcs_duplex;
 289
 290                 ethtool_cmd_speed_set(cmd, priv->xstats.pcs_speed);
 291
 292                 /* Get and convert ADV/LP_ADV from the HW AN registers */
 293                 if (!priv->hw->mac->pcs_get_adv_lp)
 294                         return -EOPNOTSUPP;     /* should never happen indeed */
 295
 296                 priv->hw->mac->pcs_get_adv_lp(priv->ioaddr, &adv);
 297
 298                 /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 299
 300                 if (adv.pause & STMMAC_PCS_PAUSE)
 301                         cmd->advertising |= ADVERTISED_Pause;
 302                 if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
 303                         cmd->advertising |= ADVERTISED_Asym_Pause;
 304                 if (adv.lp_pause & STMMAC_PCS_PAUSE)
 305                         cmd->lp_advertising |= ADVERTISED_Pause;
 306                 if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
 307                         cmd->lp_advertising |= ADVERTISED_Asym_Pause;
 308
 309                 /* Reg49[3] always set because ANE is always supported */
 310                 cmd->autoneg = ADVERTISED_Autoneg;
 311                 cmd->supported |= SUPPORTED_Autoneg;
 312                 cmd->advertising |= ADVERTISED_Autoneg;
 313                 cmd->lp_advertising |= ADVERTISED_Autoneg;
 314
 315                 if (adv.duplex) {
 316                         cmd->supported |= (SUPPORTED_1000baseT_Full |
 317                                            SUPPORTED_100baseT_Full |
 318                                            SUPPORTED_10baseT_Full);
 319                         cmd->advertising |= (ADVERTISED_1000baseT_Full |
 320                                              ADVERTISED_100baseT_Full |
 321                                              ADVERTISED_10baseT_Full);
 322                 } else {
 323                         cmd->supported |= (SUPPORTED_1000baseT_Half |
 324                                            SUPPORTED_100baseT_Half |
 325                                            SUPPORTED_10baseT_Half);
 326                         cmd->advertising |= (ADVERTISED_1000baseT_Half |
 327                                              ADVERTISED_100baseT_Half |
 328                                              ADVERTISED_10baseT_Half);
 329                 }
 330                 if (adv.lp_duplex)
 331                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Full |
 332                                                 ADVERTISED_100baseT_Full |
 333                                                 ADVERTISED_10baseT_Full);
 334                 else
 335                         cmd->lp_advertising |= (ADVERTISED_1000baseT_Half |
 336                                                 ADVERTISED_100baseT_Half |
 337                                                 ADVERTISED_10baseT_Half);
 338                 cmd->port = PORT_OTHER;
 339
 340                 return 0;
 341         }
 342
 343         if (phy == NULL) {
 344                 pr_err("%s: %s: PHY is not registered\n",
 345                        __func__, dev->name);
 346                 return -ENODEV;
 347         }
 348         if (!netif_running(dev)) {
 349                 pr_err("%s: interface is disabled: we cannot track "
 350                 "link speed / duplex setting\n", dev->name);
 351                 return -EBUSY;
 352         }
 353         cmd->transceiver = XCVR_INTERNAL;
 354         rc = phy_ethtool_gset(phy, cmd);
 355         return rc;
 356 }
 357
 358 static int stmmac_ethtool_setsettings(struct net_device *dev,
 359                                       struct ethtool_cmd *cmd)
 360 {
 361         struct stmmac_priv *priv = netdev_priv(dev);
 362         struct phy_device *phy = priv->phydev;
 363         int rc;
 364
 365         if (priv->hw->pcs & STMMAC_PCS_RGMII ||
 366             priv->hw->pcs & STMMAC_PCS_SGMII) {
 367                 u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 368
 369                 /* Only support ANE */
 370                 if (cmd->autoneg != AUTONEG_ENABLE)
 371                         return -EINVAL;
 372
 373                 mask &= (ADVERTISED_1000baseT_Half |
 374                         ADVERTISED_1000baseT_Full |
 375                         ADVERTISED_100baseT_Half |
 376                         ADVERTISED_100baseT_Full |
 377                         ADVERTISED_10baseT_Half |
 378                         ADVERTISED_10baseT_Full);
 379
 380                 spin_lock(&priv->lock);
 381
 382                 if (priv->hw->mac->pcs_ctrl_ane)
 383                         priv->hw->mac->pcs_ctrl_ane(priv->ioaddr, 1,
 384                                                     priv->hw->ps, 0);
 385
 386                 spin_unlock(&priv->lock);
 387
 388                 return 0;
 389         }
 390
 391         spin_lock(&priv->lock);
 392         rc = phy_ethtool_sset(phy, cmd);
 393         spin_unlock(&priv->lock);
 394
 395         return rc;
 396 }
 397
 398 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 399 {
 400         struct stmmac_priv *priv = netdev_priv(dev);
 401         return priv->msg_enable;
 402 }
 403
 404 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 405 {
 406         struct stmmac_priv *priv = netdev_priv(dev);
 407         priv->msg_enable = level;
 408
 409 }
 410
 411 static int stmmac_check_if_running(struct net_device *dev)
 412 {
 413         if (!netif_running(dev))
 414                 return -EBUSY;
 415         return 0;
 416 }
 417
 418 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 419 {
 420         return REG_SPACE_SIZE;
 421 }
 422
 423 static void stmmac_ethtool_gregs(struct net_device *dev,
 424                           struct ethtool_regs *regs, void *space)
 425 {
 426         int i;
 427         u32 *reg_space = (u32 *) space;
 428
 429         struct stmmac_priv *priv = netdev_priv(dev);
 430
 431         memset(reg_space, 0x0, REG_SPACE_SIZE);
 432
 433         if (!priv->plat->has_gmac) {
 434                 /* MAC registers */
 435                 for (i = 0; i < 12; i++)
 436                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 437                 /* DMA registers */
 438                 for (i = 0; i < 9; i++)
 439                         reg_space[i + 12] =
 440                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 441                 reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
 442                 reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
 443         } else {
 444                 /* MAC registers */
 445                 for (i = 0; i < 55; i++)
 446                         reg_space[i] = readl(priv->ioaddr + (i * 4));
 447                 /* DMA registers */
 448                 for (i = 0; i < 22; i++)
 449                         reg_space[i + 55] =
 450                             readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
 451         }
 452 }
 453
 454 static void
 455 stmmac_get_pauseparam(struct net_device *netdev,
 456                       struct ethtool_pauseparam *pause)
 457 {
 458         struct stmmac_priv *priv = netdev_priv(netdev);
 459
 460         pause->rx_pause = 0;
 461         pause->tx_pause = 0;
 462
 463         if (priv->hw->pcs && priv->hw->mac->pcs_get_adv_lp) {
 464                 struct rgmii_adv adv_lp;
 465
 466                 pause->autoneg = 1;
 467                 priv->hw->mac->pcs_get_adv_lp(priv->ioaddr, &adv_lp);
 468                 if (!adv_lp.pause)
 469                         return;
 470         } else {
 471                 if (!(priv->phydev->supported & SUPPORTED_Pause) ||
 472                     !(priv->phydev->supported & SUPPORTED_Asym_Pause))
 473                         return;
 474         }
 475
 476         pause->autoneg = priv->phydev->autoneg;
 477
 478         if (priv->flow_ctrl & FLOW_RX)
 479                 pause->rx_pause = 1;
 480         if (priv->flow_ctrl & FLOW_TX)
 481                 pause->tx_pause = 1;
 482
 483 }
 484
 485 static int
 486 stmmac_set_pauseparam(struct net_device *netdev,
 487                       struct ethtool_pauseparam *pause)
 488 {
 489         struct stmmac_priv *priv = netdev_priv(netdev);
 490         struct phy_device *phy = priv->phydev;
 491         int new_pause = FLOW_OFF;
 492
 493         if (priv->hw->pcs && priv->hw->mac->pcs_get_adv_lp) {
 494                 struct rgmii_adv adv_lp;
 495
 496                 pause->autoneg = 1;
 497                 priv->hw->mac->pcs_get_adv_lp(priv->ioaddr, &adv_lp);
 498                 if (!adv_lp.pause)
 499                         return -EOPNOTSUPP;
 500         } else {
 501                 if (!(phy->supported & SUPPORTED_Pause) ||
 502                     !(phy->supported & SUPPORTED_Asym_Pause))
 503                         return -EOPNOTSUPP;
 504         }
 505
 506         if (pause->rx_pause)
 507                 new_pause |= FLOW_RX;
 508         if (pause->tx_pause)
 509                 new_pause |= FLOW_TX;
 510
 511         priv->flow_ctrl = new_pause;
 512         phy->autoneg = pause->autoneg;
 513
 514         if (phy->autoneg) {
 515                 if (netif_running(netdev))
 516                         return phy_start_aneg(phy);
 517         }
 518
 519         priv->hw->mac->flow_ctrl(priv->hw, phy->duplex, priv->flow_ctrl,
 520                                  priv->pause);
 521         return 0;
 522 }
 523
 524 static void stmmac_get_ethtool_stats(struct net_device *dev,
 525                                  struct ethtool_stats *dummy, u64 *data)
 526 {
 527         struct stmmac_priv *priv = netdev_priv(dev);
 528         int i, j = 0;
 529
 530         /* Update the DMA HW counters for dwmac10/100 */
 531         if (priv->hw->dma->dma_diagnostic_fr)
 532                 priv->hw->dma->dma_diagnostic_fr(&dev->stats,
 533                                                  (void *) &priv->xstats,
 534                                                  priv->ioaddr);
 535         else {
 536                 /* If supported, for new GMAC chips expose the MMC counters */
 537                 if (priv->dma_cap.rmon) {
 538                         dwmac_mmc_read(priv->mmcaddr, &priv->mmc);
 539
 540                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 541                                 char *p;
 542                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 543
 544                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 545                                              sizeof(u64)) ? (*(u64 *)p) :
 546                                              (*(u32 *)p);
 547                         }
 548                 }
 549                 if (priv->eee_enabled) {
 550                         int val = phy_get_eee_err(priv->phydev);
 551                         if (val)
 552                                 priv->xstats.phy_eee_wakeup_error_n = val;
 553                 }
 554
 555                 if ((priv->hw->mac->debug) &&
 556                     (priv->synopsys_id >= DWMAC_CORE_3_50))
 557                         priv->hw->mac->debug(priv->ioaddr,
 558                                              (void *)&priv->xstats);
 559         }
 560         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 561                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 562                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 563                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 564         }
 565 }
 566
 567 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 568 {
 569         struct stmmac_priv *priv = netdev_priv(netdev);
 570         int len;
 571
 572         switch (sset) {
 573         case ETH_SS_STATS:
 574                 len = STMMAC_STATS_LEN;
 575
 576                 if (priv->dma_cap.rmon)
 577                         len += STMMAC_MMC_STATS_LEN;
 578
 579                 return len;
 580         default:
 581                 return -EOPNOTSUPP;
 582         }
 583 }
 584
 585 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 586 {
 587         int i;
 588         u8 *p = data;
 589         struct stmmac_priv *priv = netdev_priv(dev);
 590
 591         switch (stringset) {
 592         case ETH_SS_STATS:
 593                 if (priv->dma_cap.rmon)
 594                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 595                                 memcpy(p, stmmac_mmc[i].stat_string,
 596                                        ETH_GSTRING_LEN);
 597                                 p += ETH_GSTRING_LEN;
 598                         }
 599                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 600                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 601                                 ETH_GSTRING_LEN);
 602                         p += ETH_GSTRING_LEN;
 603                 }
 604                 break;
 605         default:
 606                 WARN_ON(1);
 607                 break;
 608         }
 609 }
 610
 611 /* Currently only support WOL through Magic packet. */
 612 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 613 {
 614         struct stmmac_priv *priv = netdev_priv(dev);
 615
 616         spin_lock_irq(&priv->lock);
 617         if (device_can_wakeup(priv->device)) {
 618                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 619                 wol->wolopts = priv->wolopts;
 620         }
 621         spin_unlock_irq(&priv->lock);
 622 }
 623
 624 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 625 {
 626         struct stmmac_priv *priv = netdev_priv(dev);
 627         u32 support = WAKE_MAGIC | WAKE_UCAST;
 628
 629         /* By default almost all GMAC devices support the WoL via
 630          * magic frame but we can disable it if the HW capability
 631          * register shows no support for pmt_magic_frame. */
 632         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 633                 wol->wolopts &= ~WAKE_MAGIC;
 634
 635         if (!device_can_wakeup(priv->device))
 636                 return -EINVAL;
 637
 638         if (wol->wolopts & ~support)
 639                 return -EINVAL;
 640
 641         if (wol->wolopts) {
 642                 pr_info("stmmac: wakeup enable\n");
 643                 device_set_wakeup_enable(priv->device, 1);
 644                 enable_irq_wake(priv->wol_irq);
 645         } else {
 646                 device_set_wakeup_enable(priv->device, 0);
 647                 disable_irq_wake(priv->wol_irq);
 648         }
 649
 650         spin_lock_irq(&priv->lock);
 651         priv->wolopts = wol->wolopts;
 652         spin_unlock_irq(&priv->lock);
 653
 654         return 0;
 655 }
 656
 657 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 658                                      struct ethtool_eee *edata)
 659 {
 660         struct stmmac_priv *priv = netdev_priv(dev);
 661
 662         if (!priv->dma_cap.eee)
 663                 return -EOPNOTSUPP;
 664
 665         edata->eee_enabled = priv->eee_enabled;
 666         edata->eee_active = priv->eee_active;
 667         edata->tx_lpi_timer = priv->tx_lpi_timer;
 668
 669         return phy_ethtool_get_eee(priv->phydev, edata);
 670 }
 671
 672 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 673                                      struct ethtool_eee *edata)
 674 {
 675         struct stmmac_priv *priv = netdev_priv(dev);
 676
 677         priv->eee_enabled = edata->eee_enabled;
 678
 679         if (!priv->eee_enabled)
 680                 stmmac_disable_eee_mode(priv);
 681         else {
 682                 /* We are asking for enabling the EEE but it is safe
 683                  * to verify all by invoking the eee_init function.
 684                  * In case of failure it will return an error.
 685                  */
 686                 priv->eee_enabled = stmmac_eee_init(priv);
 687                 if (!priv->eee_enabled)
 688                         return -EOPNOTSUPP;
 689
 690                 /* Do not change tx_lpi_timer in case of failure */
 691                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 692         }
 693
 694         return phy_ethtool_set_eee(priv->phydev, edata);
 695 }
 696
 697 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 698 {
 699         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 700
 701         if (!clk)
 702                 return 0;
 703
 704         return (usec * (clk / 1000000)) / 256;
 705 }
 706
 707 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 708 {
 709         unsigned long clk = clk_get_rate(priv->stmmac_clk);
 710
 711         if (!clk)
 712                 return 0;
 713
 714         return (riwt * 256) / (clk / 1000000);
 715 }
 716
 717 static int stmmac_get_coalesce(struct net_device *dev,
 718                                struct ethtool_coalesce *ec)
 719 {
 720         struct stmmac_priv *priv = netdev_priv(dev);
 721
 722         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 723         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 724
 725         if (priv->use_riwt)
 726                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 727
 728         return 0;
 729 }
 730
 731 static int stmmac_set_coalesce(struct net_device *dev,
 732                                struct ethtool_coalesce *ec)
 733 {
 734         struct stmmac_priv *priv = netdev_priv(dev);
 735         unsigned int rx_riwt;
 736
 737         /* Check not supported parameters  */
 738         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 739             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 740             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 741             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 742             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 743             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 744             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 745             (ec->rx_max_coalesced_frames_high) ||
 746             (ec->tx_max_coalesced_frames_irq) ||
 747             (ec->stats_block_coalesce_usecs) ||
 748             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 749                 return -EOPNOTSUPP;
 750
 751         if (ec->rx_coalesce_usecs == 0)
 752                 return -EINVAL;
 753
 754         if ((ec->tx_coalesce_usecs == 0) &&
 755             (ec->tx_max_coalesced_frames == 0))
 756                 return -EINVAL;
 757
 758         if ((ec->tx_coalesce_usecs > STMMAC_MAX_COAL_TX_TICK) ||
 759             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 760                 return -EINVAL;
 761
 762         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 763
 764         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 765                 return -EINVAL;
 766         else if (!priv->use_riwt)
 767                 return -EOPNOTSUPP;
 768
 769         /* Only copy relevant parameters, ignore all others. */
 770         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 771         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 772         priv->rx_riwt = rx_riwt;
 773         priv->hw->dma->rx_watchdog(priv->ioaddr, priv->rx_riwt);
 774
 775         return 0;
 776 }
 777
 778 static int stmmac_get_ts_info(struct net_device *dev,
 779                               struct ethtool_ts_info *info)
 780 {
 781         struct stmmac_priv *priv = netdev_priv(dev);
 782
 783         if ((priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp)) {
 784
 785                 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
 786                                         SOF_TIMESTAMPING_TX_HARDWARE |
 787                                         SOF_TIMESTAMPING_RX_SOFTWARE |
 788                                         SOF_TIMESTAMPING_RX_HARDWARE |
 789                                         SOF_TIMESTAMPING_SOFTWARE |
 790                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 791
 792                 if (priv->ptp_clock)
 793                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 794
 795                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 796
 797                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 798                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 799                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 800                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 801                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 802                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 803                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 804                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 805                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 806                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 807                                     (1 << HWTSTAMP_FILTER_ALL));
 808                 return 0;
 809         } else
 810                 return ethtool_op_get_ts_info(dev, info);
 811 }
 812
 813 static int stmmac_get_tunable(struct net_device *dev,
 814                               const struct ethtool_tunable *tuna, void *data)
 815 {
 816         struct stmmac_priv *priv = netdev_priv(dev);
 817         int ret = 0;
 818
 819         switch (tuna->id) {
 820         case ETHTOOL_RX_COPYBREAK:
 821                 *(u32 *)data = priv->rx_copybreak;
 822                 break;
 823         default:
 824                 ret = -EINVAL;
 825                 break;
 826         }
 827
 828         return ret;
 829 }
 830
 831 static int stmmac_set_tunable(struct net_device *dev,
 832                               const struct ethtool_tunable *tuna,
 833                               const void *data)
 834 {
 835         struct stmmac_priv *priv = netdev_priv(dev);
 836         int ret = 0;
 837
 838         switch (tuna->id) {
 839         case ETHTOOL_RX_COPYBREAK:
 840                 priv->rx_copybreak = *(u32 *)data;
 841                 break;
 842         default:
 843                 ret = -EINVAL;
 844                 break;
 845         }
 846
 847         return ret;
 848 }
 849
 850 static const struct ethtool_ops stmmac_ethtool_ops = {
 851         .begin = stmmac_check_if_running,
 852         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 853         .get_settings = stmmac_ethtool_getsettings,
 854         .set_settings = stmmac_ethtool_setsettings,
 855         .get_msglevel = stmmac_ethtool_getmsglevel,
 856         .set_msglevel = stmmac_ethtool_setmsglevel,
 857         .get_regs = stmmac_ethtool_gregs,
 858         .get_regs_len = stmmac_ethtool_get_regs_len,
 859         .get_link = ethtool_op_get_link,
 860         .get_pauseparam = stmmac_get_pauseparam,
 861         .set_pauseparam = stmmac_set_pauseparam,
 862         .get_ethtool_stats = stmmac_get_ethtool_stats,
 863         .get_strings = stmmac_get_strings,
 864         .get_wol = stmmac_get_wol,
 865         .set_wol = stmmac_set_wol,
 866         .get_eee = stmmac_ethtool_op_get_eee,
 867         .set_eee = stmmac_ethtool_op_set_eee,
 868         .get_sset_count = stmmac_get_sset_count,
 869         .get_ts_info = stmmac_get_ts_info,
 870         .get_coalesce = stmmac_get_coalesce,
 871         .set_coalesce = stmmac_set_coalesce,
 872         .get_tunable = stmmac_get_tunable,
 873         .set_tunable = stmmac_set_tunable,
 874 };
 875
 876 void stmmac_set_ethtool_ops(struct net_device *netdev)
 877 {
 878         netdev->ethtool_ops = &stmmac_ethtool_ops;
 879 }