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   The full GNU General Public License is included in this distribution in
  16   the file called "COPYING".
  17
  18   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
  19 *******************************************************************************/
  20
  21 #include <linux/etherdevice.h>
  22 #include <linux/ethtool.h>
  23 #include <linux/interrupt.h>
  24 #include <linux/mii.h>
  25 #include <linux/phy.h>
  26 #include <linux/net_tstamp.h>
  27 #include <asm/io.h>
  28
  29 #include "stmmac.h"
  30 #include "dwmac_dma.h"
  31
  32 #define REG_SPACE_SIZE  0x1060
  33 #define MAC100_ETHTOOL_NAME     "st_mac100"
  34 #define GMAC_ETHTOOL_NAME       "st_gmac"
  35
  36 #define ETHTOOL_DMA_OFFSET      55
  37
  38 struct stmmac_stats {
  39         char stat_string[ETH_GSTRING_LEN];
  40         int sizeof_stat;
  41         int stat_offset;
  42 };
  43
  44 #define STMMAC_STAT(m)  \
  45         { #m, FIELD_SIZEOF(struct stmmac_extra_stats, m),       \
  46         offsetof(struct stmmac_priv, xstats.m)}
  47
  48 static const struct stmmac_stats stmmac_gstrings_stats[] = {
  49         /* Transmit errors */
  50         STMMAC_STAT(tx_underflow),
  51         STMMAC_STAT(tx_carrier),
  52         STMMAC_STAT(tx_losscarrier),
  53         STMMAC_STAT(vlan_tag),
  54         STMMAC_STAT(tx_deferred),
  55         STMMAC_STAT(tx_vlan),
  56         STMMAC_STAT(tx_jabber),
  57         STMMAC_STAT(tx_frame_flushed),
  58         STMMAC_STAT(tx_payload_error),
  59         STMMAC_STAT(tx_ip_header_error),
  60         /* Receive errors */
  61         STMMAC_STAT(rx_desc),
  62         STMMAC_STAT(sa_filter_fail),
  63         STMMAC_STAT(overflow_error),
  64         STMMAC_STAT(ipc_csum_error),
  65         STMMAC_STAT(rx_collision),
  66         STMMAC_STAT(rx_crc_errors),
  67         STMMAC_STAT(dribbling_bit),
  68         STMMAC_STAT(rx_length),
  69         STMMAC_STAT(rx_mii),
  70         STMMAC_STAT(rx_multicast),
  71         STMMAC_STAT(rx_gmac_overflow),
  72         STMMAC_STAT(rx_watchdog),
  73         STMMAC_STAT(da_rx_filter_fail),
  74         STMMAC_STAT(sa_rx_filter_fail),
  75         STMMAC_STAT(rx_missed_cntr),
  76         STMMAC_STAT(rx_overflow_cntr),
  77         STMMAC_STAT(rx_vlan),
  78         /* Tx/Rx IRQ error info */
  79         STMMAC_STAT(tx_undeflow_irq),
  80         STMMAC_STAT(tx_process_stopped_irq),
  81         STMMAC_STAT(tx_jabber_irq),
  82         STMMAC_STAT(rx_overflow_irq),
  83         STMMAC_STAT(rx_buf_unav_irq),
  84         STMMAC_STAT(rx_process_stopped_irq),
  85         STMMAC_STAT(rx_watchdog_irq),
  86         STMMAC_STAT(tx_early_irq),
  87         STMMAC_STAT(fatal_bus_error_irq),
  88         /* Tx/Rx IRQ Events */
  89         STMMAC_STAT(rx_early_irq),
  90         STMMAC_STAT(threshold),
  91         STMMAC_STAT(tx_pkt_n),
  92         STMMAC_STAT(rx_pkt_n),
  93         STMMAC_STAT(normal_irq_n),
  94         STMMAC_STAT(rx_normal_irq_n),
  95         STMMAC_STAT(napi_poll),
  96         STMMAC_STAT(tx_normal_irq_n),
  97         STMMAC_STAT(tx_clean),
  98         STMMAC_STAT(tx_set_ic_bit),
  99         STMMAC_STAT(irq_receive_pmt_irq_n),
 100         /* MMC info */
 101         STMMAC_STAT(mmc_tx_irq_n),
 102         STMMAC_STAT(mmc_rx_irq_n),
 103         STMMAC_STAT(mmc_rx_csum_offload_irq_n),
 104         /* EEE */
 105         STMMAC_STAT(irq_tx_path_in_lpi_mode_n),
 106         STMMAC_STAT(irq_tx_path_exit_lpi_mode_n),
 107         STMMAC_STAT(irq_rx_path_in_lpi_mode_n),
 108         STMMAC_STAT(irq_rx_path_exit_lpi_mode_n),
 109         STMMAC_STAT(phy_eee_wakeup_error_n),
 110         /* Extended RDES status */
 111         STMMAC_STAT(ip_hdr_err),
 112         STMMAC_STAT(ip_payload_err),
 113         STMMAC_STAT(ip_csum_bypassed),
 114         STMMAC_STAT(ipv4_pkt_rcvd),
 115         STMMAC_STAT(ipv6_pkt_rcvd),
 116         STMMAC_STAT(no_ptp_rx_msg_type_ext),
 117         STMMAC_STAT(ptp_rx_msg_type_sync),
 118         STMMAC_STAT(ptp_rx_msg_type_follow_up),
 119         STMMAC_STAT(ptp_rx_msg_type_delay_req),
 120         STMMAC_STAT(ptp_rx_msg_type_delay_resp),
 121         STMMAC_STAT(ptp_rx_msg_type_pdelay_req),
 122         STMMAC_STAT(ptp_rx_msg_type_pdelay_resp),
 123         STMMAC_STAT(ptp_rx_msg_type_pdelay_follow_up),
 124         STMMAC_STAT(ptp_rx_msg_type_announce),
 125         STMMAC_STAT(ptp_rx_msg_type_management),
 126         STMMAC_STAT(ptp_rx_msg_pkt_reserved_type),
 127         STMMAC_STAT(ptp_frame_type),
 128         STMMAC_STAT(ptp_ver),
 129         STMMAC_STAT(timestamp_dropped),
 130         STMMAC_STAT(av_pkt_rcvd),
 131         STMMAC_STAT(av_tagged_pkt_rcvd),
 132         STMMAC_STAT(vlan_tag_priority_val),
 133         STMMAC_STAT(l3_filter_match),
 134         STMMAC_STAT(l4_filter_match),
 135         STMMAC_STAT(l3_l4_filter_no_match),
 136         /* PCS */
 137         STMMAC_STAT(irq_pcs_ane_n),
 138         STMMAC_STAT(irq_pcs_link_n),
 139         STMMAC_STAT(irq_rgmii_n),
 140         /* DEBUG */
 141         STMMAC_STAT(mtl_tx_status_fifo_full),
 142         STMMAC_STAT(mtl_tx_fifo_not_empty),
 143         STMMAC_STAT(mmtl_fifo_ctrl),
 144         STMMAC_STAT(mtl_tx_fifo_read_ctrl_write),
 145         STMMAC_STAT(mtl_tx_fifo_read_ctrl_wait),
 146         STMMAC_STAT(mtl_tx_fifo_read_ctrl_read),
 147         STMMAC_STAT(mtl_tx_fifo_read_ctrl_idle),
 148         STMMAC_STAT(mac_tx_in_pause),
 149         STMMAC_STAT(mac_tx_frame_ctrl_xfer),
 150         STMMAC_STAT(mac_tx_frame_ctrl_idle),
 151         STMMAC_STAT(mac_tx_frame_ctrl_wait),
 152         STMMAC_STAT(mac_tx_frame_ctrl_pause),
 153         STMMAC_STAT(mac_gmii_tx_proto_engine),
 154         STMMAC_STAT(mtl_rx_fifo_fill_level_full),
 155         STMMAC_STAT(mtl_rx_fifo_fill_above_thresh),
 156         STMMAC_STAT(mtl_rx_fifo_fill_below_thresh),
 157         STMMAC_STAT(mtl_rx_fifo_fill_level_empty),
 158         STMMAC_STAT(mtl_rx_fifo_read_ctrl_flush),
 159         STMMAC_STAT(mtl_rx_fifo_read_ctrl_read_data),
 160         STMMAC_STAT(mtl_rx_fifo_read_ctrl_status),
 161         STMMAC_STAT(mtl_rx_fifo_read_ctrl_idle),
 162         STMMAC_STAT(mtl_rx_fifo_ctrl_active),
 163         STMMAC_STAT(mac_rx_frame_ctrl_fifo),
 164         STMMAC_STAT(mac_gmii_rx_proto_engine),
 165         /* TSO */
 166         STMMAC_STAT(tx_tso_frames),
 167         STMMAC_STAT(tx_tso_nfrags),
 168 };
 169 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 170
 171 /* HW MAC Management counters (if supported) */
 172 #define STMMAC_MMC_STAT(m)      \
 173         { #m, FIELD_SIZEOF(struct stmmac_counters, m),  \
 174         offsetof(struct stmmac_priv, mmc.m)}
 175
 176 static const struct stmmac_stats stmmac_mmc[] = {
 177         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 178         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 179         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 180         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 181         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 182         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 183         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 184         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 185         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 186         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 187         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 188         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 189         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 190         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 191         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 192         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 193         STMMAC_MMC_STAT(mmc_tx_deferred),
 194         STMMAC_MMC_STAT(mmc_tx_latecol),
 195         STMMAC_MMC_STAT(mmc_tx_exesscol),
 196         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 197         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 198         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 199         STMMAC_MMC_STAT(mmc_tx_excessdef),
 200         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 201         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 202         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 203         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 204         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 205         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 206         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 207         STMMAC_MMC_STAT(mmc_rx_crc_error),
 208         STMMAC_MMC_STAT(mmc_rx_align_error),
 209         STMMAC_MMC_STAT(mmc_rx_run_error),
 210         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 211         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 212         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 213         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 214         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 215         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 216         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 217         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 218         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 219         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 220         STMMAC_MMC_STAT(mmc_rx_length_error),
 221         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 222         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 223         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 224         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 225         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 226         STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
 227         STMMAC_MMC_STAT(mmc_rx_ipc_intr),
 228         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 229         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 230         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 231         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 232         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 233         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 234         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 235         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 236         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 237         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 238         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 239         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 240         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 241         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 242         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 243         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 244         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 245         STMMAC_MMC_STAT(mmc_rx_udp_err),
 246         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 247         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 248         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 249         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 250         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 251         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 252         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 253         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 254         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 255         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 256 };
 257 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
 258
 259 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 260                                       struct ethtool_drvinfo *info)
 261 {
 262         struct stmmac_priv *priv = netdev_priv(dev);
 263
 264         if (priv->plat->has_gmac || priv->plat->has_gmac4)
 265                 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 266         else
 267                 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 268                         sizeof(info->driver));
 269
 270         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 271 }
 272
 273 static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 274                                              struct ethtool_link_ksettings *cmd)
 275 {
 276         struct stmmac_priv *priv = netdev_priv(dev);
 277         struct phy_device *phy = dev->phydev;
 278
 279         if (priv->hw->pcs & STMMAC_PCS_RGMII ||
 280             priv->hw->pcs & STMMAC_PCS_SGMII) {
 281                 struct rgmii_adv adv;
 282                 u32 supported, advertising, lp_advertising;
 283
 284                 if (!priv->xstats.pcs_link) {
 285                         cmd->base.speed = SPEED_UNKNOWN;
 286                         cmd->base.duplex = DUPLEX_UNKNOWN;
 287                         return 0;
 288                 }
 289                 cmd->base.duplex = priv->xstats.pcs_duplex;
 290
 291                 cmd->base.speed = priv->xstats.pcs_speed;
 292
 293                 /* Get and convert ADV/LP_ADV from the HW AN registers */
 294                 if (stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv))
 295                         return -EOPNOTSUPP;     /* should never happen indeed */
 296
 297                 /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 298
 299                 ethtool_convert_link_mode_to_legacy_u32(
 300                         &supported, cmd->link_modes.supported);
 301                 ethtool_convert_link_mode_to_legacy_u32(
 302                         &advertising, cmd->link_modes.advertising);
 303                 ethtool_convert_link_mode_to_legacy_u32(
 304                         &lp_advertising, cmd->link_modes.lp_advertising);
 305
 306                 if (adv.pause & STMMAC_PCS_PAUSE)
 307                         advertising |= ADVERTISED_Pause;
 308                 if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
 309                         advertising |= ADVERTISED_Asym_Pause;
 310                 if (adv.lp_pause & STMMAC_PCS_PAUSE)
 311                         lp_advertising |= ADVERTISED_Pause;
 312                 if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
 313                         lp_advertising |= ADVERTISED_Asym_Pause;
 314
 315                 /* Reg49[3] always set because ANE is always supported */
 316                 cmd->base.autoneg = ADVERTISED_Autoneg;
 317                 supported |= SUPPORTED_Autoneg;
 318                 advertising |= ADVERTISED_Autoneg;
 319                 lp_advertising |= ADVERTISED_Autoneg;
 320
 321                 if (adv.duplex) {
 322                         supported |= (SUPPORTED_1000baseT_Full |
 323                                       SUPPORTED_100baseT_Full |
 324                                       SUPPORTED_10baseT_Full);
 325                         advertising |= (ADVERTISED_1000baseT_Full |
 326                                         ADVERTISED_100baseT_Full |
 327                                         ADVERTISED_10baseT_Full);
 328                 } else {
 329                         supported |= (SUPPORTED_1000baseT_Half |
 330                                       SUPPORTED_100baseT_Half |
 331                                       SUPPORTED_10baseT_Half);
 332                         advertising |= (ADVERTISED_1000baseT_Half |
 333                                         ADVERTISED_100baseT_Half |
 334                                         ADVERTISED_10baseT_Half);
 335                 }
 336                 if (adv.lp_duplex)
 337                         lp_advertising |= (ADVERTISED_1000baseT_Full |
 338                                            ADVERTISED_100baseT_Full |
 339                                            ADVERTISED_10baseT_Full);
 340                 else
 341                         lp_advertising |= (ADVERTISED_1000baseT_Half |
 342                                            ADVERTISED_100baseT_Half |
 343                                            ADVERTISED_10baseT_Half);
 344                 cmd->base.port = PORT_OTHER;
 345
 346                 ethtool_convert_legacy_u32_to_link_mode(
 347                         cmd->link_modes.supported, supported);
 348                 ethtool_convert_legacy_u32_to_link_mode(
 349                         cmd->link_modes.advertising, advertising);
 350                 ethtool_convert_legacy_u32_to_link_mode(
 351                         cmd->link_modes.lp_advertising, lp_advertising);
 352
 353                 return 0;
 354         }
 355
 356         if (phy == NULL) {
 357                 pr_err("%s: %s: PHY is not registered\n",
 358                        __func__, dev->name);
 359                 return -ENODEV;
 360         }
 361         if (!netif_running(dev)) {
 362                 pr_err("%s: interface is disabled: we cannot track "
 363                 "link speed / duplex setting\n", dev->name);
 364                 return -EBUSY;
 365         }
 366         phy_ethtool_ksettings_get(phy, cmd);
 367         return 0;
 368 }
 369
 370 static int
 371 stmmac_ethtool_set_link_ksettings(struct net_device *dev,
 372                                   const struct ethtool_link_ksettings *cmd)
 373 {
 374         struct stmmac_priv *priv = netdev_priv(dev);
 375         struct phy_device *phy = dev->phydev;
 376         int rc;
 377
 378         if (priv->hw->pcs & STMMAC_PCS_RGMII ||
 379             priv->hw->pcs & STMMAC_PCS_SGMII) {
 380                 u32 mask = ADVERTISED_Autoneg | ADVERTISED_Pause;
 381
 382                 /* Only support ANE */
 383                 if (cmd->base.autoneg != AUTONEG_ENABLE)
 384                         return -EINVAL;
 385
 386                 mask &= (ADVERTISED_1000baseT_Half |
 387                         ADVERTISED_1000baseT_Full |
 388                         ADVERTISED_100baseT_Half |
 389                         ADVERTISED_100baseT_Full |
 390                         ADVERTISED_10baseT_Half |
 391                         ADVERTISED_10baseT_Full);
 392
 393                 mutex_lock(&priv->lock);
 394                 stmmac_pcs_ctrl_ane(priv, priv->ioaddr, 1, priv->hw->ps, 0);
 395                 mutex_unlock(&priv->lock);
 396
 397                 return 0;
 398         }
 399
 400         rc = phy_ethtool_ksettings_set(phy, cmd);
 401
 402         return rc;
 403 }
 404
 405 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 406 {
 407         struct stmmac_priv *priv = netdev_priv(dev);
 408         return priv->msg_enable;
 409 }
 410
 411 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 412 {
 413         struct stmmac_priv *priv = netdev_priv(dev);
 414         priv->msg_enable = level;
 415
 416 }
 417
 418 static int stmmac_check_if_running(struct net_device *dev)
 419 {
 420         if (!netif_running(dev))
 421                 return -EBUSY;
 422         return 0;
 423 }
 424
 425 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 426 {
 427         return REG_SPACE_SIZE;
 428 }
 429
 430 static void stmmac_ethtool_gregs(struct net_device *dev,
 431                           struct ethtool_regs *regs, void *space)
 432 {
 433         u32 *reg_space = (u32 *) space;
 434
 435         struct stmmac_priv *priv = netdev_priv(dev);
 436
 437         memset(reg_space, 0x0, REG_SPACE_SIZE);
 438
 439         stmmac_dump_mac_regs(priv, priv->hw, reg_space);
 440         stmmac_dump_dma_regs(priv, priv->ioaddr, reg_space);
 441         /* Copy DMA registers to where ethtool expects them */
 442         memcpy(&reg_space[ETHTOOL_DMA_OFFSET], &reg_space[DMA_BUS_MODE / 4],
 443                NUM_DWMAC1000_DMA_REGS * 4);
 444 }
 445
 446 static void
 447 stmmac_get_pauseparam(struct net_device *netdev,
 448                       struct ethtool_pauseparam *pause)
 449 {
 450         struct stmmac_priv *priv = netdev_priv(netdev);
 451         struct rgmii_adv adv_lp;
 452
 453         pause->rx_pause = 0;
 454         pause->tx_pause = 0;
 455
 456         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 457                 pause->autoneg = 1;
 458                 if (!adv_lp.pause)
 459                         return;
 460         } else {
 461                 if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
 462                                        netdev->phydev->supported) ||
 463                     linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
 464                                       netdev->phydev->supported))
 465                         return;
 466         }
 467
 468         pause->autoneg = netdev->phydev->autoneg;
 469
 470         if (priv->flow_ctrl & FLOW_RX)
 471                 pause->rx_pause = 1;
 472         if (priv->flow_ctrl & FLOW_TX)
 473                 pause->tx_pause = 1;
 474
 475 }
 476
 477 static int
 478 stmmac_set_pauseparam(struct net_device *netdev,
 479                       struct ethtool_pauseparam *pause)
 480 {
 481         struct stmmac_priv *priv = netdev_priv(netdev);
 482         u32 tx_cnt = priv->plat->tx_queues_to_use;
 483         struct phy_device *phy = netdev->phydev;
 484         int new_pause = FLOW_OFF;
 485         struct rgmii_adv adv_lp;
 486
 487         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 488                 pause->autoneg = 1;
 489                 if (!adv_lp.pause)
 490                         return -EOPNOTSUPP;
 491         } else {
 492                 if (!linkmode_test_bit(ETHTOOL_LINK_MODE_Pause_BIT,
 493                                        phy->supported) ||
 494                     linkmode_test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
 495                                       phy->supported))
 496                         return -EOPNOTSUPP;
 497         }
 498
 499         if (pause->rx_pause)
 500                 new_pause |= FLOW_RX;
 501         if (pause->tx_pause)
 502                 new_pause |= FLOW_TX;
 503
 504         priv->flow_ctrl = new_pause;
 505         phy->autoneg = pause->autoneg;
 506
 507         if (phy->autoneg) {
 508                 if (netif_running(netdev))
 509                         return phy_start_aneg(phy);
 510         }
 511
 512         stmmac_flow_ctrl(priv, priv->hw, phy->duplex, priv->flow_ctrl,
 513                         priv->pause, tx_cnt);
 514         return 0;
 515 }
 516
 517 static void stmmac_get_ethtool_stats(struct net_device *dev,
 518                                  struct ethtool_stats *dummy, u64 *data)
 519 {
 520         struct stmmac_priv *priv = netdev_priv(dev);
 521         u32 rx_queues_count = priv->plat->rx_queues_to_use;
 522         u32 tx_queues_count = priv->plat->tx_queues_to_use;
 523         unsigned long count;
 524         int i, j = 0, ret;
 525
 526         if (priv->dma_cap.asp) {
 527                 for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 528                         if (!stmmac_safety_feat_dump(priv, &priv->sstats, i,
 529                                                 &count, NULL))
 530                                 data[j++] = count;
 531                 }
 532         }
 533
 534         /* Update the DMA HW counters for dwmac10/100 */
 535         ret = stmmac_dma_diagnostic_fr(priv, &dev->stats, (void *) &priv->xstats,
 536                         priv->ioaddr);
 537         if (ret) {
 538                 /* If supported, for new GMAC chips expose the MMC counters */
 539                 if (priv->dma_cap.rmon) {
 540                         dwmac_mmc_read(priv->mmcaddr, &priv->mmc);
 541
 542                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 543                                 char *p;
 544                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 545
 546                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 547                                              sizeof(u64)) ? (*(u64 *)p) :
 548                                              (*(u32 *)p);
 549                         }
 550                 }
 551                 if (priv->eee_enabled) {
 552                         int val = phy_get_eee_err(dev->phydev);
 553                         if (val)
 554                                 priv->xstats.phy_eee_wakeup_error_n = val;
 555                 }
 556
 557                 if (priv->synopsys_id >= DWMAC_CORE_3_50)
 558                         stmmac_mac_debug(priv, priv->ioaddr,
 559                                         (void *)&priv->xstats,
 560                                         rx_queues_count, tx_queues_count);
 561         }
 562         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 563                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 564                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 565                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 566         }
 567 }
 568
 569 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 570 {
 571         struct stmmac_priv *priv = netdev_priv(netdev);
 572         int i, len, safety_len = 0;
 573
 574         switch (sset) {
 575         case ETH_SS_STATS:
 576                 len = STMMAC_STATS_LEN;
 577
 578                 if (priv->dma_cap.rmon)
 579                         len += STMMAC_MMC_STATS_LEN;
 580                 if (priv->dma_cap.asp) {
 581                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 582                                 if (!stmmac_safety_feat_dump(priv,
 583                                                         &priv->sstats, i,
 584                                                         NULL, NULL))
 585                                         safety_len++;
 586                         }
 587
 588                         len += safety_len;
 589                 }
 590
 591                 return len;
 592         default:
 593                 return -EOPNOTSUPP;
 594         }
 595 }
 596
 597 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 598 {
 599         int i;
 600         u8 *p = data;
 601         struct stmmac_priv *priv = netdev_priv(dev);
 602
 603         switch (stringset) {
 604         case ETH_SS_STATS:
 605                 if (priv->dma_cap.asp) {
 606                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 607                                 const char *desc;
 608                                 if (!stmmac_safety_feat_dump(priv,
 609                                                         &priv->sstats, i,
 610                                                         NULL, &desc)) {
 611                                         memcpy(p, desc, ETH_GSTRING_LEN);
 612                                         p += ETH_GSTRING_LEN;
 613                                 }
 614                         }
 615                 }
 616                 if (priv->dma_cap.rmon)
 617                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 618                                 memcpy(p, stmmac_mmc[i].stat_string,
 619                                        ETH_GSTRING_LEN);
 620                                 p += ETH_GSTRING_LEN;
 621                         }
 622                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 623                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 624                                 ETH_GSTRING_LEN);
 625                         p += ETH_GSTRING_LEN;
 626                 }
 627                 break;
 628         default:
 629                 WARN_ON(1);
 630                 break;
 631         }
 632 }
 633
 634 /* Currently only support WOL through Magic packet. */
 635 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 636 {
 637         struct stmmac_priv *priv = netdev_priv(dev);
 638
 639         mutex_lock(&priv->lock);
 640         if (device_can_wakeup(priv->device)) {
 641                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 642                 wol->wolopts = priv->wolopts;
 643         }
 644         mutex_unlock(&priv->lock);
 645 }
 646
 647 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 648 {
 649         struct stmmac_priv *priv = netdev_priv(dev);
 650         u32 support = WAKE_MAGIC | WAKE_UCAST;
 651
 652         /* By default almost all GMAC devices support the WoL via
 653          * magic frame but we can disable it if the HW capability
 654          * register shows no support for pmt_magic_frame. */
 655         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 656                 wol->wolopts &= ~WAKE_MAGIC;
 657
 658         if (!device_can_wakeup(priv->device))
 659                 return -EINVAL;
 660
 661         if (wol->wolopts & ~support)
 662                 return -EINVAL;
 663
 664         if (wol->wolopts) {
 665                 pr_info("stmmac: wakeup enable\n");
 666                 device_set_wakeup_enable(priv->device, 1);
 667                 enable_irq_wake(priv->wol_irq);
 668         } else {
 669                 device_set_wakeup_enable(priv->device, 0);
 670                 disable_irq_wake(priv->wol_irq);
 671         }
 672
 673         mutex_lock(&priv->lock);
 674         priv->wolopts = wol->wolopts;
 675         mutex_unlock(&priv->lock);
 676
 677         return 0;
 678 }
 679
 680 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 681                                      struct ethtool_eee *edata)
 682 {
 683         struct stmmac_priv *priv = netdev_priv(dev);
 684
 685         if (!priv->dma_cap.eee)
 686                 return -EOPNOTSUPP;
 687
 688         edata->eee_enabled = priv->eee_enabled;
 689         edata->eee_active = priv->eee_active;
 690         edata->tx_lpi_timer = priv->tx_lpi_timer;
 691
 692         return phy_ethtool_get_eee(dev->phydev, edata);
 693 }
 694
 695 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 696                                      struct ethtool_eee *edata)
 697 {
 698         struct stmmac_priv *priv = netdev_priv(dev);
 699         int ret;
 700
 701         if (!edata->eee_enabled) {
 702                 stmmac_disable_eee_mode(priv);
 703         } else {
 704                 /* We are asking for enabling the EEE but it is safe
 705                  * to verify all by invoking the eee_init function.
 706                  * In case of failure it will return an error.
 707                  */
 708                 edata->eee_enabled = stmmac_eee_init(priv);
 709                 if (!edata->eee_enabled)
 710                         return -EOPNOTSUPP;
 711         }
 712
 713         ret = phy_ethtool_set_eee(dev->phydev, edata);
 714         if (ret)
 715                 return ret;
 716
 717         priv->eee_enabled = edata->eee_enabled;
 718         priv->tx_lpi_timer = edata->tx_lpi_timer;
 719         return 0;
 720 }
 721
 722 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 723 {
 724         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 725
 726         if (!clk) {
 727                 clk = priv->plat->clk_ref_rate;
 728                 if (!clk)
 729                         return 0;
 730         }
 731
 732         return (usec * (clk / 1000000)) / 256;
 733 }
 734
 735 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 736 {
 737         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 738
 739         if (!clk) {
 740                 clk = priv->plat->clk_ref_rate;
 741                 if (!clk)
 742                         return 0;
 743         }
 744
 745         return (riwt * 256) / (clk / 1000000);
 746 }
 747
 748 static int stmmac_get_coalesce(struct net_device *dev,
 749                                struct ethtool_coalesce *ec)
 750 {
 751         struct stmmac_priv *priv = netdev_priv(dev);
 752
 753         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 754         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 755
 756         if (priv->use_riwt)
 757                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 758
 759         return 0;
 760 }
 761
 762 static int stmmac_set_coalesce(struct net_device *dev,
 763                                struct ethtool_coalesce *ec)
 764 {
 765         struct stmmac_priv *priv = netdev_priv(dev);
 766         u32 rx_cnt = priv->plat->rx_queues_to_use;
 767         unsigned int rx_riwt;
 768
 769         /* Check not supported parameters  */
 770         if ((ec->rx_max_coalesced_frames) || (ec->rx_coalesce_usecs_irq) ||
 771             (ec->rx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
 772             (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
 773             (ec->pkt_rate_low) || (ec->rx_coalesce_usecs_low) ||
 774             (ec->rx_max_coalesced_frames_low) || (ec->tx_coalesce_usecs_high) ||
 775             (ec->tx_max_coalesced_frames_low) || (ec->pkt_rate_high) ||
 776             (ec->tx_coalesce_usecs_low) || (ec->rx_coalesce_usecs_high) ||
 777             (ec->rx_max_coalesced_frames_high) ||
 778             (ec->tx_max_coalesced_frames_irq) ||
 779             (ec->stats_block_coalesce_usecs) ||
 780             (ec->tx_max_coalesced_frames_high) || (ec->rate_sample_interval))
 781                 return -EOPNOTSUPP;
 782
 783         if (ec->rx_coalesce_usecs == 0)
 784                 return -EINVAL;
 785
 786         if ((ec->tx_coalesce_usecs == 0) &&
 787             (ec->tx_max_coalesced_frames == 0))
 788                 return -EINVAL;
 789
 790         if ((ec->tx_coalesce_usecs > STMMAC_MAX_COAL_TX_TICK) ||
 791             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 792                 return -EINVAL;
 793
 794         rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 795
 796         if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 797                 return -EINVAL;
 798         else if (!priv->use_riwt)
 799                 return -EOPNOTSUPP;
 800
 801         /* Only copy relevant parameters, ignore all others. */
 802         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 803         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 804         priv->rx_riwt = rx_riwt;
 805         stmmac_rx_watchdog(priv, priv->ioaddr, priv->rx_riwt, rx_cnt);
 806
 807         return 0;
 808 }
 809
 810 static int stmmac_get_ts_info(struct net_device *dev,
 811                               struct ethtool_ts_info *info)
 812 {
 813         struct stmmac_priv *priv = netdev_priv(dev);
 814
 815         if ((priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp)) {
 816
 817                 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
 818                                         SOF_TIMESTAMPING_TX_HARDWARE |
 819                                         SOF_TIMESTAMPING_RX_SOFTWARE |
 820                                         SOF_TIMESTAMPING_RX_HARDWARE |
 821                                         SOF_TIMESTAMPING_SOFTWARE |
 822                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 823
 824                 if (priv->ptp_clock)
 825                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 826
 827                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 828
 829                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 830                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 831                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 832                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 833                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 834                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 835                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 836                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 837                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 838                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 839                                     (1 << HWTSTAMP_FILTER_ALL));
 840                 return 0;
 841         } else
 842                 return ethtool_op_get_ts_info(dev, info);
 843 }
 844
 845 static int stmmac_get_tunable(struct net_device *dev,
 846                               const struct ethtool_tunable *tuna, void *data)
 847 {
 848         struct stmmac_priv *priv = netdev_priv(dev);
 849         int ret = 0;
 850
 851         switch (tuna->id) {
 852         case ETHTOOL_RX_COPYBREAK:
 853                 *(u32 *)data = priv->rx_copybreak;
 854                 break;
 855         default:
 856                 ret = -EINVAL;
 857                 break;
 858         }
 859
 860         return ret;
 861 }
 862
 863 static int stmmac_set_tunable(struct net_device *dev,
 864                               const struct ethtool_tunable *tuna,
 865                               const void *data)
 866 {
 867         struct stmmac_priv *priv = netdev_priv(dev);
 868         int ret = 0;
 869
 870         switch (tuna->id) {
 871         case ETHTOOL_RX_COPYBREAK:
 872                 priv->rx_copybreak = *(u32 *)data;
 873                 break;
 874         default:
 875                 ret = -EINVAL;
 876                 break;
 877         }
 878
 879         return ret;
 880 }
 881
 882 static const struct ethtool_ops stmmac_ethtool_ops = {
 883         .begin = stmmac_check_if_running,
 884         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 885         .get_msglevel = stmmac_ethtool_getmsglevel,
 886         .set_msglevel = stmmac_ethtool_setmsglevel,
 887         .get_regs = stmmac_ethtool_gregs,
 888         .get_regs_len = stmmac_ethtool_get_regs_len,
 889         .get_link = ethtool_op_get_link,
 890         .nway_reset = phy_ethtool_nway_reset,
 891         .get_pauseparam = stmmac_get_pauseparam,
 892         .set_pauseparam = stmmac_set_pauseparam,
 893         .get_ethtool_stats = stmmac_get_ethtool_stats,
 894         .get_strings = stmmac_get_strings,
 895         .get_wol = stmmac_get_wol,
 896         .set_wol = stmmac_set_wol,
 897         .get_eee = stmmac_ethtool_op_get_eee,
 898         .set_eee = stmmac_ethtool_op_set_eee,
 899         .get_sset_count = stmmac_get_sset_count,
 900         .get_ts_info = stmmac_get_ts_info,
 901         .get_coalesce = stmmac_get_coalesce,
 902         .set_coalesce = stmmac_set_coalesce,
 903         .get_tunable = stmmac_get_tunable,
 904         .set_tunable = stmmac_set_tunable,
 905         .get_link_ksettings = stmmac_ethtool_get_link_ksettings,
 906         .set_link_ksettings = stmmac_ethtool_set_link_ksettings,
 907 };
 908
 909 void stmmac_set_ethtool_ops(struct net_device *netdev)
 910 {
 911         netdev->ethtool_ops = &stmmac_ethtool_ops;
 912 }