drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*******************************************************************************
   3   STMMAC Ethtool support
   4
   5   Copyright (C) 2007-2009  STMicroelectronics Ltd
   6
   7
   8   Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
   9 *******************************************************************************/
  10
  11 #include <linux/etherdevice.h>
  12 #include <linux/ethtool.h>
  13 #include <linux/interrupt.h>
  14 #include <linux/mii.h>
  15 #include <linux/phylink.h>
  16 #include <linux/net_tstamp.h>
  17 #include <asm/io.h>
  18
  19 #include "stmmac.h"
  20 #include "dwmac_dma.h"
  21 #include "dwxgmac2.h"
  22
  23 #define REG_SPACE_SIZE  0x1060
  24 #define MAC100_ETHTOOL_NAME     "st_mac100"
  25 #define GMAC_ETHTOOL_NAME       "st_gmac"
  26 #define XGMAC_ETHTOOL_NAME      "st_xgmac"
  27
  28 #define ETHTOOL_DMA_OFFSET      55
  29
  30 struct stmmac_stats {
  31         char stat_string[ETH_GSTRING_LEN];
  32         int sizeof_stat;
  33         int stat_offset;
  34 };
  35
  36 #define STMMAC_STAT(m)  \
  37         { #m, sizeof_field(struct stmmac_extra_stats, m),       \
  38         offsetof(struct stmmac_priv, xstats.m)}
  39
  40 static const struct stmmac_stats stmmac_gstrings_stats[] = {
  41         /* Transmit errors */
  42         STMMAC_STAT(tx_underflow),
  43         STMMAC_STAT(tx_carrier),
  44         STMMAC_STAT(tx_losscarrier),
  45         STMMAC_STAT(vlan_tag),
  46         STMMAC_STAT(tx_deferred),
  47         STMMAC_STAT(tx_vlan),
  48         STMMAC_STAT(tx_jabber),
  49         STMMAC_STAT(tx_frame_flushed),
  50         STMMAC_STAT(tx_payload_error),
  51         STMMAC_STAT(tx_ip_header_error),
  52         /* Receive errors */
  53         STMMAC_STAT(rx_desc),
  54         STMMAC_STAT(sa_filter_fail),
  55         STMMAC_STAT(overflow_error),
  56         STMMAC_STAT(ipc_csum_error),
  57         STMMAC_STAT(rx_collision),
  58         STMMAC_STAT(rx_crc_errors),
  59         STMMAC_STAT(dribbling_bit),
  60         STMMAC_STAT(rx_length),
  61         STMMAC_STAT(rx_mii),
  62         STMMAC_STAT(rx_multicast),
  63         STMMAC_STAT(rx_gmac_overflow),
  64         STMMAC_STAT(rx_watchdog),
  65         STMMAC_STAT(da_rx_filter_fail),
  66         STMMAC_STAT(sa_rx_filter_fail),
  67         STMMAC_STAT(rx_missed_cntr),
  68         STMMAC_STAT(rx_overflow_cntr),
  69         STMMAC_STAT(rx_vlan),
  70         STMMAC_STAT(rx_split_hdr_pkt_n),
  71         /* Tx/Rx IRQ error info */
  72         STMMAC_STAT(tx_undeflow_irq),
  73         STMMAC_STAT(tx_process_stopped_irq),
  74         STMMAC_STAT(tx_jabber_irq),
  75         STMMAC_STAT(rx_overflow_irq),
  76         STMMAC_STAT(rx_buf_unav_irq),
  77         STMMAC_STAT(rx_process_stopped_irq),
  78         STMMAC_STAT(rx_watchdog_irq),
  79         STMMAC_STAT(tx_early_irq),
  80         STMMAC_STAT(fatal_bus_error_irq),
  81         /* Tx/Rx IRQ Events */
  82         STMMAC_STAT(rx_early_irq),
  83         STMMAC_STAT(threshold),
  84         STMMAC_STAT(tx_pkt_n),
  85         STMMAC_STAT(rx_pkt_n),
  86         STMMAC_STAT(normal_irq_n),
  87         STMMAC_STAT(rx_normal_irq_n),
  88         STMMAC_STAT(napi_poll),
  89         STMMAC_STAT(tx_normal_irq_n),
  90         STMMAC_STAT(tx_clean),
  91         STMMAC_STAT(tx_set_ic_bit),
  92         STMMAC_STAT(irq_receive_pmt_irq_n),
  93         /* MMC info */
  94         STMMAC_STAT(mmc_tx_irq_n),
  95         STMMAC_STAT(mmc_rx_irq_n),
  96         STMMAC_STAT(mmc_rx_csum_offload_irq_n),
  97         /* EEE */
  98         STMMAC_STAT(irq_tx_path_in_lpi_mode_n),
  99         STMMAC_STAT(irq_tx_path_exit_lpi_mode_n),
 100         STMMAC_STAT(irq_rx_path_in_lpi_mode_n),
 101         STMMAC_STAT(irq_rx_path_exit_lpi_mode_n),
 102         STMMAC_STAT(phy_eee_wakeup_error_n),
 103         /* Extended RDES status */
 104         STMMAC_STAT(ip_hdr_err),
 105         STMMAC_STAT(ip_payload_err),
 106         STMMAC_STAT(ip_csum_bypassed),
 107         STMMAC_STAT(ipv4_pkt_rcvd),
 108         STMMAC_STAT(ipv6_pkt_rcvd),
 109         STMMAC_STAT(no_ptp_rx_msg_type_ext),
 110         STMMAC_STAT(ptp_rx_msg_type_sync),
 111         STMMAC_STAT(ptp_rx_msg_type_follow_up),
 112         STMMAC_STAT(ptp_rx_msg_type_delay_req),
 113         STMMAC_STAT(ptp_rx_msg_type_delay_resp),
 114         STMMAC_STAT(ptp_rx_msg_type_pdelay_req),
 115         STMMAC_STAT(ptp_rx_msg_type_pdelay_resp),
 116         STMMAC_STAT(ptp_rx_msg_type_pdelay_follow_up),
 117         STMMAC_STAT(ptp_rx_msg_type_announce),
 118         STMMAC_STAT(ptp_rx_msg_type_management),
 119         STMMAC_STAT(ptp_rx_msg_pkt_reserved_type),
 120         STMMAC_STAT(ptp_frame_type),
 121         STMMAC_STAT(ptp_ver),
 122         STMMAC_STAT(timestamp_dropped),
 123         STMMAC_STAT(av_pkt_rcvd),
 124         STMMAC_STAT(av_tagged_pkt_rcvd),
 125         STMMAC_STAT(vlan_tag_priority_val),
 126         STMMAC_STAT(l3_filter_match),
 127         STMMAC_STAT(l4_filter_match),
 128         STMMAC_STAT(l3_l4_filter_no_match),
 129         /* PCS */
 130         STMMAC_STAT(irq_pcs_ane_n),
 131         STMMAC_STAT(irq_pcs_link_n),
 132         STMMAC_STAT(irq_rgmii_n),
 133         /* DEBUG */
 134         STMMAC_STAT(mtl_tx_status_fifo_full),
 135         STMMAC_STAT(mtl_tx_fifo_not_empty),
 136         STMMAC_STAT(mmtl_fifo_ctrl),
 137         STMMAC_STAT(mtl_tx_fifo_read_ctrl_write),
 138         STMMAC_STAT(mtl_tx_fifo_read_ctrl_wait),
 139         STMMAC_STAT(mtl_tx_fifo_read_ctrl_read),
 140         STMMAC_STAT(mtl_tx_fifo_read_ctrl_idle),
 141         STMMAC_STAT(mac_tx_in_pause),
 142         STMMAC_STAT(mac_tx_frame_ctrl_xfer),
 143         STMMAC_STAT(mac_tx_frame_ctrl_idle),
 144         STMMAC_STAT(mac_tx_frame_ctrl_wait),
 145         STMMAC_STAT(mac_tx_frame_ctrl_pause),
 146         STMMAC_STAT(mac_gmii_tx_proto_engine),
 147         STMMAC_STAT(mtl_rx_fifo_fill_level_full),
 148         STMMAC_STAT(mtl_rx_fifo_fill_above_thresh),
 149         STMMAC_STAT(mtl_rx_fifo_fill_below_thresh),
 150         STMMAC_STAT(mtl_rx_fifo_fill_level_empty),
 151         STMMAC_STAT(mtl_rx_fifo_read_ctrl_flush),
 152         STMMAC_STAT(mtl_rx_fifo_read_ctrl_read_data),
 153         STMMAC_STAT(mtl_rx_fifo_read_ctrl_status),
 154         STMMAC_STAT(mtl_rx_fifo_read_ctrl_idle),
 155         STMMAC_STAT(mtl_rx_fifo_ctrl_active),
 156         STMMAC_STAT(mac_rx_frame_ctrl_fifo),
 157         STMMAC_STAT(mac_gmii_rx_proto_engine),
 158         /* TSO */
 159         STMMAC_STAT(tx_tso_frames),
 160         STMMAC_STAT(tx_tso_nfrags),
 161 };
 162 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 163
 164 /* HW MAC Management counters (if supported) */
 165 #define STMMAC_MMC_STAT(m)      \
 166         { #m, sizeof_field(struct stmmac_counters, m),  \
 167         offsetof(struct stmmac_priv, mmc.m)}
 168
 169 static const struct stmmac_stats stmmac_mmc[] = {
 170         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 171         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 172         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 173         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 174         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 175         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 176         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 177         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 178         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 179         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 180         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 181         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 182         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 183         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 184         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 185         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 186         STMMAC_MMC_STAT(mmc_tx_deferred),
 187         STMMAC_MMC_STAT(mmc_tx_latecol),
 188         STMMAC_MMC_STAT(mmc_tx_exesscol),
 189         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 190         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 191         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 192         STMMAC_MMC_STAT(mmc_tx_excessdef),
 193         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 194         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 195         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 196         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 197         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 198         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 199         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 200         STMMAC_MMC_STAT(mmc_rx_crc_error),
 201         STMMAC_MMC_STAT(mmc_rx_align_error),
 202         STMMAC_MMC_STAT(mmc_rx_run_error),
 203         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 204         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 205         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 206         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 207         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 208         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 209         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 210         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 211         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 212         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 213         STMMAC_MMC_STAT(mmc_rx_length_error),
 214         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 215         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 216         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 217         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 218         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 219         STMMAC_MMC_STAT(mmc_rx_ipc_intr_mask),
 220         STMMAC_MMC_STAT(mmc_rx_ipc_intr),
 221         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 222         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 223         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 224         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 225         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 226         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 227         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 228         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 229         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 230         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 231         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 232         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 233         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 234         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 235         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 236         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 237         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 238         STMMAC_MMC_STAT(mmc_rx_udp_err),
 239         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 240         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 241         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 242         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 243         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 244         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 245         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 246         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 247         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 248         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 249         STMMAC_MMC_STAT(mmc_tx_fpe_fragment_cntr),
 250         STMMAC_MMC_STAT(mmc_tx_hold_req_cntr),
 251         STMMAC_MMC_STAT(mmc_rx_packet_assembly_err_cntr),
 252         STMMAC_MMC_STAT(mmc_rx_packet_smd_err_cntr),
 253         STMMAC_MMC_STAT(mmc_rx_packet_assembly_ok_cntr),
 254         STMMAC_MMC_STAT(mmc_rx_fpe_fragment_cntr),
 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 || priv->plat->has_gmac4)
 264                 strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 265         else if (priv->plat->has_xgmac)
 266                 strlcpy(info->driver, XGMAC_ETHTOOL_NAME, sizeof(info->driver));
 267         else
 268                 strlcpy(info->driver, MAC100_ETHTOOL_NAME,
 269                         sizeof(info->driver));
 270
 271         strlcpy(info->version, DRV_MODULE_VERSION, sizeof(info->version));
 272 }
 273
 274 static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 275                                              struct ethtool_link_ksettings *cmd)
 276 {
 277         struct stmmac_priv *priv = netdev_priv(dev);
 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         return phylink_ethtool_ksettings_get(priv->phylink, cmd);
 357 }
 358
 359 static int
 360 stmmac_ethtool_set_link_ksettings(struct net_device *dev,
 361                                   const struct ethtool_link_ksettings *cmd)
 362 {
 363         struct stmmac_priv *priv = netdev_priv(dev);
 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->base.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                 mutex_lock(&priv->lock);
 381                 stmmac_pcs_ctrl_ane(priv, priv->ioaddr, 1, priv->hw->ps, 0);
 382                 mutex_unlock(&priv->lock);
 383
 384                 return 0;
 385         }
 386
 387         return phylink_ethtool_ksettings_set(priv->phylink, cmd);
 388 }
 389
 390 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 391 {
 392         struct stmmac_priv *priv = netdev_priv(dev);
 393         return priv->msg_enable;
 394 }
 395
 396 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 397 {
 398         struct stmmac_priv *priv = netdev_priv(dev);
 399         priv->msg_enable = level;
 400
 401 }
 402
 403 static int stmmac_check_if_running(struct net_device *dev)
 404 {
 405         if (!netif_running(dev))
 406                 return -EBUSY;
 407         return 0;
 408 }
 409
 410 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 411 {
 412         struct stmmac_priv *priv = netdev_priv(dev);
 413
 414         if (priv->plat->has_xgmac)
 415                 return XGMAC_REGSIZE * 4;
 416         return REG_SPACE_SIZE;
 417 }
 418
 419 static void stmmac_ethtool_gregs(struct net_device *dev,
 420                           struct ethtool_regs *regs, void *space)
 421 {
 422         struct stmmac_priv *priv = netdev_priv(dev);
 423         u32 *reg_space = (u32 *) space;
 424
 425         stmmac_dump_mac_regs(priv, priv->hw, reg_space);
 426         stmmac_dump_dma_regs(priv, priv->ioaddr, reg_space);
 427
 428         if (!priv->plat->has_xgmac) {
 429                 /* Copy DMA registers to where ethtool expects them */
 430                 memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
 431                        &reg_space[DMA_BUS_MODE / 4],
 432                        NUM_DWMAC1000_DMA_REGS * 4);
 433         }
 434 }
 435
 436 static int stmmac_nway_reset(struct net_device *dev)
 437 {
 438         struct stmmac_priv *priv = netdev_priv(dev);
 439
 440         return phylink_ethtool_nway_reset(priv->phylink);
 441 }
 442
 443 static void stmmac_get_ringparam(struct net_device *netdev,
 444                                  struct ethtool_ringparam *ring)
 445 {
 446         struct stmmac_priv *priv = netdev_priv(netdev);
 447
 448         ring->rx_max_pending = DMA_MAX_RX_SIZE;
 449         ring->tx_max_pending = DMA_MAX_TX_SIZE;
 450         ring->rx_pending = priv->dma_rx_size;
 451         ring->tx_pending = priv->dma_tx_size;
 452 }
 453
 454 static int stmmac_set_ringparam(struct net_device *netdev,
 455                                 struct ethtool_ringparam *ring)
 456 {
 457         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 458             ring->rx_pending < DMA_MIN_RX_SIZE ||
 459             ring->rx_pending > DMA_MAX_RX_SIZE ||
 460             !is_power_of_2(ring->rx_pending) ||
 461             ring->tx_pending < DMA_MIN_TX_SIZE ||
 462             ring->tx_pending > DMA_MAX_TX_SIZE ||
 463             !is_power_of_2(ring->tx_pending))
 464                 return -EINVAL;
 465
 466         return stmmac_reinit_ringparam(netdev, ring->rx_pending,
 467                                        ring->tx_pending);
 468 }
 469
 470 static void
 471 stmmac_get_pauseparam(struct net_device *netdev,
 472                       struct ethtool_pauseparam *pause)
 473 {
 474         struct stmmac_priv *priv = netdev_priv(netdev);
 475         struct rgmii_adv adv_lp;
 476
 477         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 478                 pause->autoneg = 1;
 479                 if (!adv_lp.pause)
 480                         return;
 481         } else {
 482                 phylink_ethtool_get_pauseparam(priv->phylink, pause);
 483         }
 484 }
 485
 486 static int
 487 stmmac_set_pauseparam(struct net_device *netdev,
 488                       struct ethtool_pauseparam *pause)
 489 {
 490         struct stmmac_priv *priv = netdev_priv(netdev);
 491         struct rgmii_adv adv_lp;
 492
 493         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 494                 pause->autoneg = 1;
 495                 if (!adv_lp.pause)
 496                         return -EOPNOTSUPP;
 497                 return 0;
 498         } else {
 499                 return phylink_ethtool_set_pauseparam(priv->phylink, pause);
 500         }
 501 }
 502
 503 static void stmmac_get_ethtool_stats(struct net_device *dev,
 504                                  struct ethtool_stats *dummy, u64 *data)
 505 {
 506         struct stmmac_priv *priv = netdev_priv(dev);
 507         u32 rx_queues_count = priv->plat->rx_queues_to_use;
 508         u32 tx_queues_count = priv->plat->tx_queues_to_use;
 509         unsigned long count;
 510         int i, j = 0, ret;
 511
 512         if (priv->dma_cap.asp) {
 513                 for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 514                         if (!stmmac_safety_feat_dump(priv, &priv->sstats, i,
 515                                                 &count, NULL))
 516                                 data[j++] = count;
 517                 }
 518         }
 519
 520         /* Update the DMA HW counters for dwmac10/100 */
 521         ret = stmmac_dma_diagnostic_fr(priv, &dev->stats, (void *) &priv->xstats,
 522                         priv->ioaddr);
 523         if (ret) {
 524                 /* If supported, for new GMAC chips expose the MMC counters */
 525                 if (priv->dma_cap.rmon) {
 526                         stmmac_mmc_read(priv, priv->mmcaddr, &priv->mmc);
 527
 528                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 529                                 char *p;
 530                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 531
 532                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 533                                              sizeof(u64)) ? (*(u64 *)p) :
 534                                              (*(u32 *)p);
 535                         }
 536                 }
 537                 if (priv->eee_enabled) {
 538                         int val = phylink_get_eee_err(priv->phylink);
 539                         if (val)
 540                                 priv->xstats.phy_eee_wakeup_error_n = val;
 541                 }
 542
 543                 if (priv->synopsys_id >= DWMAC_CORE_3_50)
 544                         stmmac_mac_debug(priv, priv->ioaddr,
 545                                         (void *)&priv->xstats,
 546                                         rx_queues_count, tx_queues_count);
 547         }
 548         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 549                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 550                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 551                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 552         }
 553 }
 554
 555 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 556 {
 557         struct stmmac_priv *priv = netdev_priv(netdev);
 558         int i, len, safety_len = 0;
 559
 560         switch (sset) {
 561         case ETH_SS_STATS:
 562                 len = STMMAC_STATS_LEN;
 563
 564                 if (priv->dma_cap.rmon)
 565                         len += STMMAC_MMC_STATS_LEN;
 566                 if (priv->dma_cap.asp) {
 567                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 568                                 if (!stmmac_safety_feat_dump(priv,
 569                                                         &priv->sstats, i,
 570                                                         NULL, NULL))
 571                                         safety_len++;
 572                         }
 573
 574                         len += safety_len;
 575                 }
 576
 577                 return len;
 578         case ETH_SS_TEST:
 579                 return stmmac_selftest_get_count(priv);
 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.asp) {
 594                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 595                                 const char *desc;
 596                                 if (!stmmac_safety_feat_dump(priv,
 597                                                         &priv->sstats, i,
 598                                                         NULL, &desc)) {
 599                                         memcpy(p, desc, ETH_GSTRING_LEN);
 600                                         p += ETH_GSTRING_LEN;
 601                                 }
 602                         }
 603                 }
 604                 if (priv->dma_cap.rmon)
 605                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 606                                 memcpy(p, stmmac_mmc[i].stat_string,
 607                                        ETH_GSTRING_LEN);
 608                                 p += ETH_GSTRING_LEN;
 609                         }
 610                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 611                         memcpy(p, stmmac_gstrings_stats[i].stat_string,
 612                                 ETH_GSTRING_LEN);
 613                         p += ETH_GSTRING_LEN;
 614                 }
 615                 break;
 616         case ETH_SS_TEST:
 617                 stmmac_selftest_get_strings(priv, p);
 618                 break;
 619         default:
 620                 WARN_ON(1);
 621                 break;
 622         }
 623 }
 624
 625 /* Currently only support WOL through Magic packet. */
 626 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 627 {
 628         struct stmmac_priv *priv = netdev_priv(dev);
 629
 630         if (!priv->plat->pmt)
 631                 return phylink_ethtool_get_wol(priv->phylink, wol);
 632
 633         mutex_lock(&priv->lock);
 634         if (device_can_wakeup(priv->device)) {
 635                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 636                 if (priv->hw_cap_support && !priv->dma_cap.pmt_magic_frame)
 637                         wol->supported &= ~WAKE_MAGIC;
 638                 wol->wolopts = priv->wolopts;
 639         }
 640         mutex_unlock(&priv->lock);
 641 }
 642
 643 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 644 {
 645         struct stmmac_priv *priv = netdev_priv(dev);
 646         u32 support = WAKE_MAGIC | WAKE_UCAST;
 647
 648         if (!device_can_wakeup(priv->device))
 649                 return -EOPNOTSUPP;
 650
 651         if (!priv->plat->pmt) {
 652                 int ret = phylink_ethtool_set_wol(priv->phylink, wol);
 653
 654                 if (!ret)
 655                         device_set_wakeup_enable(priv->device, !!wol->wolopts);
 656                 return ret;
 657         }
 658
 659         /* By default almost all GMAC devices support the WoL via
 660          * magic frame but we can disable it if the HW capability
 661          * register shows no support for pmt_magic_frame. */
 662         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 663                 wol->wolopts &= ~WAKE_MAGIC;
 664
 665         if (wol->wolopts & ~support)
 666                 return -EINVAL;
 667
 668         if (wol->wolopts) {
 669                 pr_info("stmmac: wakeup enable\n");
 670                 device_set_wakeup_enable(priv->device, 1);
 671                 enable_irq_wake(priv->wol_irq);
 672         } else {
 673                 device_set_wakeup_enable(priv->device, 0);
 674                 disable_irq_wake(priv->wol_irq);
 675         }
 676
 677         mutex_lock(&priv->lock);
 678         priv->wolopts = wol->wolopts;
 679         mutex_unlock(&priv->lock);
 680
 681         return 0;
 682 }
 683
 684 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 685                                      struct ethtool_eee *edata)
 686 {
 687         struct stmmac_priv *priv = netdev_priv(dev);
 688
 689         if (!priv->dma_cap.eee)
 690                 return -EOPNOTSUPP;
 691
 692         edata->eee_enabled = priv->eee_enabled;
 693         edata->eee_active = priv->eee_active;
 694         edata->tx_lpi_timer = priv->tx_lpi_timer;
 695         edata->tx_lpi_enabled = priv->tx_lpi_enabled;
 696
 697         return phylink_ethtool_get_eee(priv->phylink, edata);
 698 }
 699
 700 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 701                                      struct ethtool_eee *edata)
 702 {
 703         struct stmmac_priv *priv = netdev_priv(dev);
 704         int ret;
 705
 706         if (!priv->dma_cap.eee)
 707                 return -EOPNOTSUPP;
 708
 709         if (priv->tx_lpi_enabled != edata->tx_lpi_enabled)
 710                 netdev_warn(priv->dev,
 711                             "Setting EEE tx-lpi is not supported\n");
 712
 713         if (!edata->eee_enabled)
 714                 stmmac_disable_eee_mode(priv);
 715
 716         ret = phylink_ethtool_set_eee(priv->phylink, edata);
 717         if (ret)
 718                 return ret;
 719
 720         if (edata->eee_enabled &&
 721             priv->tx_lpi_timer != edata->tx_lpi_timer) {
 722                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 723                 stmmac_eee_init(priv);
 724         }
 725
 726         return 0;
 727 }
 728
 729 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 730 {
 731         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 732
 733         if (!clk) {
 734                 clk = priv->plat->clk_ref_rate;
 735                 if (!clk)
 736                         return 0;
 737         }
 738
 739         return (usec * (clk / 1000000)) / 256;
 740 }
 741
 742 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 743 {
 744         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 745
 746         if (!clk) {
 747                 clk = priv->plat->clk_ref_rate;
 748                 if (!clk)
 749                         return 0;
 750         }
 751
 752         return (riwt * 256) / (clk / 1000000);
 753 }
 754
 755 static int stmmac_get_coalesce(struct net_device *dev,
 756                                struct ethtool_coalesce *ec)
 757 {
 758         struct stmmac_priv *priv = netdev_priv(dev);
 759
 760         ec->tx_coalesce_usecs = priv->tx_coal_timer;
 761         ec->tx_max_coalesced_frames = priv->tx_coal_frames;
 762
 763         if (priv->use_riwt) {
 764                 ec->rx_max_coalesced_frames = priv->rx_coal_frames;
 765                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt, priv);
 766         }
 767
 768         return 0;
 769 }
 770
 771 static int stmmac_set_coalesce(struct net_device *dev,
 772                                struct ethtool_coalesce *ec)
 773 {
 774         struct stmmac_priv *priv = netdev_priv(dev);
 775         u32 rx_cnt = priv->plat->rx_queues_to_use;
 776         unsigned int rx_riwt;
 777
 778         if (priv->use_riwt && (ec->rx_coalesce_usecs > 0)) {
 779                 rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
 780
 781                 if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
 782                         return -EINVAL;
 783
 784                 priv->rx_riwt = rx_riwt;
 785                 stmmac_rx_watchdog(priv, priv->ioaddr, priv->rx_riwt, rx_cnt);
 786         }
 787
 788         if ((ec->tx_coalesce_usecs == 0) &&
 789             (ec->tx_max_coalesced_frames == 0))
 790                 return -EINVAL;
 791
 792         if ((ec->tx_coalesce_usecs > STMMAC_MAX_COAL_TX_TICK) ||
 793             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
 794                 return -EINVAL;
 795
 796         /* Only copy relevant parameters, ignore all others. */
 797         priv->tx_coal_frames = ec->tx_max_coalesced_frames;
 798         priv->tx_coal_timer = ec->tx_coalesce_usecs;
 799         priv->rx_coal_frames = ec->rx_max_coalesced_frames;
 800         return 0;
 801 }
 802
 803 static int stmmac_get_rxnfc(struct net_device *dev,
 804                             struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
 805 {
 806         struct stmmac_priv *priv = netdev_priv(dev);
 807
 808         switch (rxnfc->cmd) {
 809         case ETHTOOL_GRXRINGS:
 810                 rxnfc->data = priv->plat->rx_queues_to_use;
 811                 break;
 812         default:
 813                 return -EOPNOTSUPP;
 814         }
 815
 816         return 0;
 817 }
 818
 819 static u32 stmmac_get_rxfh_key_size(struct net_device *dev)
 820 {
 821         struct stmmac_priv *priv = netdev_priv(dev);
 822
 823         return sizeof(priv->rss.key);
 824 }
 825
 826 static u32 stmmac_get_rxfh_indir_size(struct net_device *dev)
 827 {
 828         struct stmmac_priv *priv = netdev_priv(dev);
 829
 830         return ARRAY_SIZE(priv->rss.table);
 831 }
 832
 833 static int stmmac_get_rxfh(struct net_device *dev, u32 *indir, u8 *key,
 834                            u8 *hfunc)
 835 {
 836         struct stmmac_priv *priv = netdev_priv(dev);
 837         int i;
 838
 839         if (indir) {
 840                 for (i = 0; i < ARRAY_SIZE(priv->rss.table); i++)
 841                         indir[i] = priv->rss.table[i];
 842         }
 843
 844         if (key)
 845                 memcpy(key, priv->rss.key, sizeof(priv->rss.key));
 846         if (hfunc)
 847                 *hfunc = ETH_RSS_HASH_TOP;
 848
 849         return 0;
 850 }
 851
 852 static int stmmac_set_rxfh(struct net_device *dev, const u32 *indir,
 853                            const u8 *key, const u8 hfunc)
 854 {
 855         struct stmmac_priv *priv = netdev_priv(dev);
 856         int i;
 857
 858         if ((hfunc != ETH_RSS_HASH_NO_CHANGE) && (hfunc != ETH_RSS_HASH_TOP))
 859                 return -EOPNOTSUPP;
 860
 861         if (indir) {
 862                 for (i = 0; i < ARRAY_SIZE(priv->rss.table); i++)
 863                         priv->rss.table[i] = indir[i];
 864         }
 865
 866         if (key)
 867                 memcpy(priv->rss.key, key, sizeof(priv->rss.key));
 868
 869         return stmmac_rss_configure(priv, priv->hw, &priv->rss,
 870                                     priv->plat->rx_queues_to_use);
 871 }
 872
 873 static void stmmac_get_channels(struct net_device *dev,
 874                                 struct ethtool_channels *chan)
 875 {
 876         struct stmmac_priv *priv = netdev_priv(dev);
 877
 878         chan->rx_count = priv->plat->rx_queues_to_use;
 879         chan->tx_count = priv->plat->tx_queues_to_use;
 880         chan->max_rx = priv->dma_cap.number_rx_queues;
 881         chan->max_tx = priv->dma_cap.number_tx_queues;
 882 }
 883
 884 static int stmmac_set_channels(struct net_device *dev,
 885                                struct ethtool_channels *chan)
 886 {
 887         struct stmmac_priv *priv = netdev_priv(dev);
 888
 889         if (chan->rx_count > priv->dma_cap.number_rx_queues ||
 890             chan->tx_count > priv->dma_cap.number_tx_queues ||
 891             !chan->rx_count || !chan->tx_count)
 892                 return -EINVAL;
 893
 894         return stmmac_reinit_queues(dev, chan->rx_count, chan->tx_count);
 895 }
 896
 897 static int stmmac_get_ts_info(struct net_device *dev,
 898                               struct ethtool_ts_info *info)
 899 {
 900         struct stmmac_priv *priv = netdev_priv(dev);
 901
 902         if ((priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp)) {
 903
 904                 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
 905                                         SOF_TIMESTAMPING_TX_HARDWARE |
 906                                         SOF_TIMESTAMPING_RX_SOFTWARE |
 907                                         SOF_TIMESTAMPING_RX_HARDWARE |
 908                                         SOF_TIMESTAMPING_SOFTWARE |
 909                                         SOF_TIMESTAMPING_RAW_HARDWARE;
 910
 911                 if (priv->ptp_clock)
 912                         info->phc_index = ptp_clock_index(priv->ptp_clock);
 913
 914                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 915
 916                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
 917                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 918                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 919                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 920                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 921                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 922                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 923                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 924                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 925                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 926                                     (1 << HWTSTAMP_FILTER_ALL));
 927                 return 0;
 928         } else
 929                 return ethtool_op_get_ts_info(dev, info);
 930 }
 931
 932 static int stmmac_get_tunable(struct net_device *dev,
 933                               const struct ethtool_tunable *tuna, void *data)
 934 {
 935         struct stmmac_priv *priv = netdev_priv(dev);
 936         int ret = 0;
 937
 938         switch (tuna->id) {
 939         case ETHTOOL_RX_COPYBREAK:
 940                 *(u32 *)data = priv->rx_copybreak;
 941                 break;
 942         default:
 943                 ret = -EINVAL;
 944                 break;
 945         }
 946
 947         return ret;
 948 }
 949
 950 static int stmmac_set_tunable(struct net_device *dev,
 951                               const struct ethtool_tunable *tuna,
 952                               const void *data)
 953 {
 954         struct stmmac_priv *priv = netdev_priv(dev);
 955         int ret = 0;
 956
 957         switch (tuna->id) {
 958         case ETHTOOL_RX_COPYBREAK:
 959                 priv->rx_copybreak = *(u32 *)data;
 960                 break;
 961         default:
 962                 ret = -EINVAL;
 963                 break;
 964         }
 965
 966         return ret;
 967 }
 968
 969 static const struct ethtool_ops stmmac_ethtool_ops = {
 970         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
 971                                      ETHTOOL_COALESCE_MAX_FRAMES,
 972         .begin = stmmac_check_if_running,
 973         .get_drvinfo = stmmac_ethtool_getdrvinfo,
 974         .get_msglevel = stmmac_ethtool_getmsglevel,
 975         .set_msglevel = stmmac_ethtool_setmsglevel,
 976         .get_regs = stmmac_ethtool_gregs,
 977         .get_regs_len = stmmac_ethtool_get_regs_len,
 978         .get_link = ethtool_op_get_link,
 979         .nway_reset = stmmac_nway_reset,
 980         .get_ringparam = stmmac_get_ringparam,
 981         .set_ringparam = stmmac_set_ringparam,
 982         .get_pauseparam = stmmac_get_pauseparam,
 983         .set_pauseparam = stmmac_set_pauseparam,
 984         .self_test = stmmac_selftest_run,
 985         .get_ethtool_stats = stmmac_get_ethtool_stats,
 986         .get_strings = stmmac_get_strings,
 987         .get_wol = stmmac_get_wol,
 988         .set_wol = stmmac_set_wol,
 989         .get_eee = stmmac_ethtool_op_get_eee,
 990         .set_eee = stmmac_ethtool_op_set_eee,
 991         .get_sset_count = stmmac_get_sset_count,
 992         .get_rxnfc = stmmac_get_rxnfc,
 993         .get_rxfh_key_size = stmmac_get_rxfh_key_size,
 994         .get_rxfh_indir_size = stmmac_get_rxfh_indir_size,
 995         .get_rxfh = stmmac_get_rxfh,
 996         .set_rxfh = stmmac_set_rxfh,
 997         .get_ts_info = stmmac_get_ts_info,
 998         .get_coalesce = stmmac_get_coalesce,
 999         .set_coalesce = stmmac_set_coalesce,
1000         .get_channels = stmmac_get_channels,
1001         .set_channels = stmmac_set_channels,
1002         .get_tunable = stmmac_get_tunable,
1003         .set_tunable = stmmac_set_tunable,
1004         .get_link_ksettings = stmmac_ethtool_get_link_ksettings,
1005         .set_link_ksettings = stmmac_ethtool_set_link_ksettings,
1006 };
1007
1008 void stmmac_set_ethtool_ops(struct net_device *netdev)
1009 {
1010         netdev->ethtool_ops = &stmmac_ethtool_ops;
1011 }