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 GMAC4_REG_SPACE_SIZE    0x116C
  25 #define MAC100_ETHTOOL_NAME     "st_mac100"
  26 #define GMAC_ETHTOOL_NAME       "st_gmac"
  27 #define XGMAC_ETHTOOL_NAME      "st_xgmac"
  28
  29 /* Same as DMA_CHAN_BASE_ADDR defined in dwmac4_dma.h
  30  *
  31  * It is here because dwmac_dma.h and dwmac4_dam.h can not be included at the
  32  * same time due to the conflicting macro names.
  33  */
  34 #define GMAC4_DMA_CHAN_BASE_ADDR  0x00001100
  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, sizeof_field(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         STMMAC_STAT(rx_split_hdr_pkt_n),
  79         /* Tx/Rx IRQ error info */
  80         STMMAC_STAT(tx_undeflow_irq),
  81         STMMAC_STAT(tx_process_stopped_irq),
  82         STMMAC_STAT(tx_jabber_irq),
  83         STMMAC_STAT(rx_overflow_irq),
  84         STMMAC_STAT(rx_buf_unav_irq),
  85         STMMAC_STAT(rx_process_stopped_irq),
  86         STMMAC_STAT(rx_watchdog_irq),
  87         STMMAC_STAT(tx_early_irq),
  88         STMMAC_STAT(fatal_bus_error_irq),
  89         /* Tx/Rx IRQ Events */
  90         STMMAC_STAT(rx_early_irq),
  91         STMMAC_STAT(threshold),
  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         /* EST */
 159         STMMAC_STAT(mtl_est_cgce),
 160         STMMAC_STAT(mtl_est_hlbs),
 161         STMMAC_STAT(mtl_est_hlbf),
 162         STMMAC_STAT(mtl_est_btre),
 163         STMMAC_STAT(mtl_est_btrlm),
 164 };
 165 #define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
 166
 167 /* statistics collected in queue which will be summed up for all TX or RX
 168  * queues, or summed up for both TX and RX queues(napi_poll, normal_irq_n).
 169  */
 170 static const char stmmac_qstats_string[][ETH_GSTRING_LEN] = {
 171         "rx_pkt_n",
 172         "rx_normal_irq_n",
 173         "tx_pkt_n",
 174         "tx_normal_irq_n",
 175         "tx_clean",
 176         "tx_set_ic_bit",
 177         "tx_tso_frames",
 178         "tx_tso_nfrags",
 179         "normal_irq_n",
 180         "napi_poll",
 181 };
 182 #define STMMAC_QSTATS ARRAY_SIZE(stmmac_qstats_string)
 183
 184 /* HW MAC Management counters (if supported) */
 185 #define STMMAC_MMC_STAT(m)      \
 186         { #m, sizeof_field(struct stmmac_counters, m),  \
 187         offsetof(struct stmmac_priv, mmc.m)}
 188
 189 static const struct stmmac_stats stmmac_mmc[] = {
 190         STMMAC_MMC_STAT(mmc_tx_octetcount_gb),
 191         STMMAC_MMC_STAT(mmc_tx_framecount_gb),
 192         STMMAC_MMC_STAT(mmc_tx_broadcastframe_g),
 193         STMMAC_MMC_STAT(mmc_tx_multicastframe_g),
 194         STMMAC_MMC_STAT(mmc_tx_64_octets_gb),
 195         STMMAC_MMC_STAT(mmc_tx_65_to_127_octets_gb),
 196         STMMAC_MMC_STAT(mmc_tx_128_to_255_octets_gb),
 197         STMMAC_MMC_STAT(mmc_tx_256_to_511_octets_gb),
 198         STMMAC_MMC_STAT(mmc_tx_512_to_1023_octets_gb),
 199         STMMAC_MMC_STAT(mmc_tx_1024_to_max_octets_gb),
 200         STMMAC_MMC_STAT(mmc_tx_unicast_gb),
 201         STMMAC_MMC_STAT(mmc_tx_multicast_gb),
 202         STMMAC_MMC_STAT(mmc_tx_broadcast_gb),
 203         STMMAC_MMC_STAT(mmc_tx_underflow_error),
 204         STMMAC_MMC_STAT(mmc_tx_singlecol_g),
 205         STMMAC_MMC_STAT(mmc_tx_multicol_g),
 206         STMMAC_MMC_STAT(mmc_tx_deferred),
 207         STMMAC_MMC_STAT(mmc_tx_latecol),
 208         STMMAC_MMC_STAT(mmc_tx_exesscol),
 209         STMMAC_MMC_STAT(mmc_tx_carrier_error),
 210         STMMAC_MMC_STAT(mmc_tx_octetcount_g),
 211         STMMAC_MMC_STAT(mmc_tx_framecount_g),
 212         STMMAC_MMC_STAT(mmc_tx_excessdef),
 213         STMMAC_MMC_STAT(mmc_tx_pause_frame),
 214         STMMAC_MMC_STAT(mmc_tx_vlan_frame_g),
 215         STMMAC_MMC_STAT(mmc_tx_oversize_g),
 216         STMMAC_MMC_STAT(mmc_tx_lpi_usec),
 217         STMMAC_MMC_STAT(mmc_tx_lpi_tran),
 218         STMMAC_MMC_STAT(mmc_rx_framecount_gb),
 219         STMMAC_MMC_STAT(mmc_rx_octetcount_gb),
 220         STMMAC_MMC_STAT(mmc_rx_octetcount_g),
 221         STMMAC_MMC_STAT(mmc_rx_broadcastframe_g),
 222         STMMAC_MMC_STAT(mmc_rx_multicastframe_g),
 223         STMMAC_MMC_STAT(mmc_rx_crc_error),
 224         STMMAC_MMC_STAT(mmc_rx_align_error),
 225         STMMAC_MMC_STAT(mmc_rx_run_error),
 226         STMMAC_MMC_STAT(mmc_rx_jabber_error),
 227         STMMAC_MMC_STAT(mmc_rx_undersize_g),
 228         STMMAC_MMC_STAT(mmc_rx_oversize_g),
 229         STMMAC_MMC_STAT(mmc_rx_64_octets_gb),
 230         STMMAC_MMC_STAT(mmc_rx_65_to_127_octets_gb),
 231         STMMAC_MMC_STAT(mmc_rx_128_to_255_octets_gb),
 232         STMMAC_MMC_STAT(mmc_rx_256_to_511_octets_gb),
 233         STMMAC_MMC_STAT(mmc_rx_512_to_1023_octets_gb),
 234         STMMAC_MMC_STAT(mmc_rx_1024_to_max_octets_gb),
 235         STMMAC_MMC_STAT(mmc_rx_unicast_g),
 236         STMMAC_MMC_STAT(mmc_rx_length_error),
 237         STMMAC_MMC_STAT(mmc_rx_autofrangetype),
 238         STMMAC_MMC_STAT(mmc_rx_pause_frames),
 239         STMMAC_MMC_STAT(mmc_rx_fifo_overflow),
 240         STMMAC_MMC_STAT(mmc_rx_vlan_frames_gb),
 241         STMMAC_MMC_STAT(mmc_rx_watchdog_error),
 242         STMMAC_MMC_STAT(mmc_rx_error),
 243         STMMAC_MMC_STAT(mmc_rx_lpi_usec),
 244         STMMAC_MMC_STAT(mmc_rx_lpi_tran),
 245         STMMAC_MMC_STAT(mmc_rx_discard_frames_gb),
 246         STMMAC_MMC_STAT(mmc_rx_discard_octets_gb),
 247         STMMAC_MMC_STAT(mmc_rx_align_err_frames),
 248         STMMAC_MMC_STAT(mmc_rx_ipv4_gd),
 249         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr),
 250         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay),
 251         STMMAC_MMC_STAT(mmc_rx_ipv4_frag),
 252         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl),
 253         STMMAC_MMC_STAT(mmc_rx_ipv4_gd_octets),
 254         STMMAC_MMC_STAT(mmc_rx_ipv4_hderr_octets),
 255         STMMAC_MMC_STAT(mmc_rx_ipv4_nopay_octets),
 256         STMMAC_MMC_STAT(mmc_rx_ipv4_frag_octets),
 257         STMMAC_MMC_STAT(mmc_rx_ipv4_udsbl_octets),
 258         STMMAC_MMC_STAT(mmc_rx_ipv6_gd_octets),
 259         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr_octets),
 260         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay_octets),
 261         STMMAC_MMC_STAT(mmc_rx_ipv6_gd),
 262         STMMAC_MMC_STAT(mmc_rx_ipv6_hderr),
 263         STMMAC_MMC_STAT(mmc_rx_ipv6_nopay),
 264         STMMAC_MMC_STAT(mmc_rx_udp_gd),
 265         STMMAC_MMC_STAT(mmc_rx_udp_err),
 266         STMMAC_MMC_STAT(mmc_rx_tcp_gd),
 267         STMMAC_MMC_STAT(mmc_rx_tcp_err),
 268         STMMAC_MMC_STAT(mmc_rx_icmp_gd),
 269         STMMAC_MMC_STAT(mmc_rx_icmp_err),
 270         STMMAC_MMC_STAT(mmc_rx_udp_gd_octets),
 271         STMMAC_MMC_STAT(mmc_rx_udp_err_octets),
 272         STMMAC_MMC_STAT(mmc_rx_tcp_gd_octets),
 273         STMMAC_MMC_STAT(mmc_rx_tcp_err_octets),
 274         STMMAC_MMC_STAT(mmc_rx_icmp_gd_octets),
 275         STMMAC_MMC_STAT(mmc_rx_icmp_err_octets),
 276         STMMAC_MMC_STAT(mmc_sgf_pass_fragment_cntr),
 277         STMMAC_MMC_STAT(mmc_sgf_fail_fragment_cntr),
 278         STMMAC_MMC_STAT(mmc_tx_fpe_fragment_cntr),
 279         STMMAC_MMC_STAT(mmc_tx_hold_req_cntr),
 280         STMMAC_MMC_STAT(mmc_tx_gate_overrun_cntr),
 281         STMMAC_MMC_STAT(mmc_rx_packet_assembly_err_cntr),
 282         STMMAC_MMC_STAT(mmc_rx_packet_smd_err_cntr),
 283         STMMAC_MMC_STAT(mmc_rx_packet_assembly_ok_cntr),
 284         STMMAC_MMC_STAT(mmc_rx_fpe_fragment_cntr),
 285 };
 286 #define STMMAC_MMC_STATS_LEN ARRAY_SIZE(stmmac_mmc)
 287
 288 static const char stmmac_qstats_tx_string[][ETH_GSTRING_LEN] = {
 289         "tx_pkt_n",
 290         "tx_irq_n",
 291 #define STMMAC_TXQ_STATS ARRAY_SIZE(stmmac_qstats_tx_string)
 292 };
 293
 294 static const char stmmac_qstats_rx_string[][ETH_GSTRING_LEN] = {
 295         "rx_pkt_n",
 296         "rx_irq_n",
 297 #define STMMAC_RXQ_STATS ARRAY_SIZE(stmmac_qstats_rx_string)
 298 };
 299
 300 static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
 301                                       struct ethtool_drvinfo *info)
 302 {
 303         struct stmmac_priv *priv = netdev_priv(dev);
 304
 305         if (priv->plat->has_gmac || priv->plat->has_gmac4)
 306                 strscpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
 307         else if (priv->plat->has_xgmac)
 308                 strscpy(info->driver, XGMAC_ETHTOOL_NAME, sizeof(info->driver));
 309         else
 310                 strscpy(info->driver, MAC100_ETHTOOL_NAME,
 311                         sizeof(info->driver));
 312
 313         if (priv->plat->pdev) {
 314                 strscpy(info->bus_info, pci_name(priv->plat->pdev),
 315                         sizeof(info->bus_info));
 316         }
 317 }
 318
 319 static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 320                                              struct ethtool_link_ksettings *cmd)
 321 {
 322         struct stmmac_priv *priv = netdev_priv(dev);
 323
 324         if (!(priv->plat->flags & STMMAC_FLAG_HAS_INTEGRATED_PCS) &&
 325             (priv->hw->pcs & STMMAC_PCS_RGMII ||
 326              priv->hw->pcs & STMMAC_PCS_SGMII)) {
 327                 struct rgmii_adv adv;
 328                 u32 supported, advertising, lp_advertising;
 329
 330                 if (!priv->xstats.pcs_link) {
 331                         cmd->base.speed = SPEED_UNKNOWN;
 332                         cmd->base.duplex = DUPLEX_UNKNOWN;
 333                         return 0;
 334                 }
 335                 cmd->base.duplex = priv->xstats.pcs_duplex;
 336
 337                 cmd->base.speed = priv->xstats.pcs_speed;
 338
 339                 /* Get and convert ADV/LP_ADV from the HW AN registers */
 340                 if (stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv))
 341                         return -EOPNOTSUPP;     /* should never happen indeed */
 342
 343                 /* Encoding of PSE bits is defined in 802.3z, 37.2.1.4 */
 344
 345                 ethtool_convert_link_mode_to_legacy_u32(
 346                         &supported, cmd->link_modes.supported);
 347                 ethtool_convert_link_mode_to_legacy_u32(
 348                         &advertising, cmd->link_modes.advertising);
 349                 ethtool_convert_link_mode_to_legacy_u32(
 350                         &lp_advertising, cmd->link_modes.lp_advertising);
 351
 352                 if (adv.pause & STMMAC_PCS_PAUSE)
 353                         advertising |= ADVERTISED_Pause;
 354                 if (adv.pause & STMMAC_PCS_ASYM_PAUSE)
 355                         advertising |= ADVERTISED_Asym_Pause;
 356                 if (adv.lp_pause & STMMAC_PCS_PAUSE)
 357                         lp_advertising |= ADVERTISED_Pause;
 358                 if (adv.lp_pause & STMMAC_PCS_ASYM_PAUSE)
 359                         lp_advertising |= ADVERTISED_Asym_Pause;
 360
 361                 /* Reg49[3] always set because ANE is always supported */
 362                 cmd->base.autoneg = ADVERTISED_Autoneg;
 363                 supported |= SUPPORTED_Autoneg;
 364                 advertising |= ADVERTISED_Autoneg;
 365                 lp_advertising |= ADVERTISED_Autoneg;
 366
 367                 if (adv.duplex) {
 368                         supported |= (SUPPORTED_1000baseT_Full |
 369                                       SUPPORTED_100baseT_Full |
 370                                       SUPPORTED_10baseT_Full);
 371                         advertising |= (ADVERTISED_1000baseT_Full |
 372                                         ADVERTISED_100baseT_Full |
 373                                         ADVERTISED_10baseT_Full);
 374                 } else {
 375                         supported |= (SUPPORTED_1000baseT_Half |
 376                                       SUPPORTED_100baseT_Half |
 377                                       SUPPORTED_10baseT_Half);
 378                         advertising |= (ADVERTISED_1000baseT_Half |
 379                                         ADVERTISED_100baseT_Half |
 380                                         ADVERTISED_10baseT_Half);
 381                 }
 382                 if (adv.lp_duplex)
 383                         lp_advertising |= (ADVERTISED_1000baseT_Full |
 384                                            ADVERTISED_100baseT_Full |
 385                                            ADVERTISED_10baseT_Full);
 386                 else
 387                         lp_advertising |= (ADVERTISED_1000baseT_Half |
 388                                            ADVERTISED_100baseT_Half |
 389                                            ADVERTISED_10baseT_Half);
 390                 cmd->base.port = PORT_OTHER;
 391
 392                 ethtool_convert_legacy_u32_to_link_mode(
 393                         cmd->link_modes.supported, supported);
 394                 ethtool_convert_legacy_u32_to_link_mode(
 395                         cmd->link_modes.advertising, advertising);
 396                 ethtool_convert_legacy_u32_to_link_mode(
 397                         cmd->link_modes.lp_advertising, lp_advertising);
 398
 399                 return 0;
 400         }
 401
 402         return phylink_ethtool_ksettings_get(priv->phylink, cmd);
 403 }
 404
 405 static int
 406 stmmac_ethtool_set_link_ksettings(struct net_device *dev,
 407                                   const struct ethtool_link_ksettings *cmd)
 408 {
 409         struct stmmac_priv *priv = netdev_priv(dev);
 410
 411         if (!(priv->plat->flags & STMMAC_FLAG_HAS_INTEGRATED_PCS) &&
 412             (priv->hw->pcs & STMMAC_PCS_RGMII ||
 413              priv->hw->pcs & STMMAC_PCS_SGMII)) {
 414                 /* Only support ANE */
 415                 if (cmd->base.autoneg != AUTONEG_ENABLE)
 416                         return -EINVAL;
 417
 418                 mutex_lock(&priv->lock);
 419                 stmmac_pcs_ctrl_ane(priv, priv->ioaddr, 1, priv->hw->ps, 0);
 420                 mutex_unlock(&priv->lock);
 421
 422                 return 0;
 423         }
 424
 425         return phylink_ethtool_ksettings_set(priv->phylink, cmd);
 426 }
 427
 428 static u32 stmmac_ethtool_getmsglevel(struct net_device *dev)
 429 {
 430         struct stmmac_priv *priv = netdev_priv(dev);
 431         return priv->msg_enable;
 432 }
 433
 434 static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
 435 {
 436         struct stmmac_priv *priv = netdev_priv(dev);
 437         priv->msg_enable = level;
 438
 439 }
 440
 441 static int stmmac_check_if_running(struct net_device *dev)
 442 {
 443         if (!netif_running(dev))
 444                 return -EBUSY;
 445         return 0;
 446 }
 447
 448 static int stmmac_ethtool_get_regs_len(struct net_device *dev)
 449 {
 450         struct stmmac_priv *priv = netdev_priv(dev);
 451
 452         if (priv->plat->has_xgmac)
 453                 return XGMAC_REGSIZE * 4;
 454         else if (priv->plat->has_gmac4)
 455                 return GMAC4_REG_SPACE_SIZE;
 456         return REG_SPACE_SIZE;
 457 }
 458
 459 static void stmmac_ethtool_gregs(struct net_device *dev,
 460                           struct ethtool_regs *regs, void *space)
 461 {
 462         struct stmmac_priv *priv = netdev_priv(dev);
 463         u32 *reg_space = (u32 *) space;
 464
 465         stmmac_dump_mac_regs(priv, priv->hw, reg_space);
 466         stmmac_dump_dma_regs(priv, priv->ioaddr, reg_space);
 467
 468         /* Copy DMA registers to where ethtool expects them */
 469         if (priv->plat->has_gmac4) {
 470                 /* GMAC4 dumps its DMA registers at its DMA_CHAN_BASE_ADDR */
 471                 memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
 472                        &reg_space[GMAC4_DMA_CHAN_BASE_ADDR / 4],
 473                        NUM_DWMAC4_DMA_REGS * 4);
 474         } else if (!priv->plat->has_xgmac) {
 475                 memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
 476                        &reg_space[DMA_BUS_MODE / 4],
 477                        NUM_DWMAC1000_DMA_REGS * 4);
 478         }
 479 }
 480
 481 static int stmmac_nway_reset(struct net_device *dev)
 482 {
 483         struct stmmac_priv *priv = netdev_priv(dev);
 484
 485         return phylink_ethtool_nway_reset(priv->phylink);
 486 }
 487
 488 static void stmmac_get_ringparam(struct net_device *netdev,
 489                                  struct ethtool_ringparam *ring,
 490                                  struct kernel_ethtool_ringparam *kernel_ring,
 491                                  struct netlink_ext_ack *extack)
 492 {
 493         struct stmmac_priv *priv = netdev_priv(netdev);
 494
 495         ring->rx_max_pending = DMA_MAX_RX_SIZE;
 496         ring->tx_max_pending = DMA_MAX_TX_SIZE;
 497         ring->rx_pending = priv->dma_conf.dma_rx_size;
 498         ring->tx_pending = priv->dma_conf.dma_tx_size;
 499 }
 500
 501 static int stmmac_set_ringparam(struct net_device *netdev,
 502                                 struct ethtool_ringparam *ring,
 503                                 struct kernel_ethtool_ringparam *kernel_ring,
 504                                 struct netlink_ext_ack *extack)
 505 {
 506         if (ring->rx_mini_pending || ring->rx_jumbo_pending ||
 507             ring->rx_pending < DMA_MIN_RX_SIZE ||
 508             ring->rx_pending > DMA_MAX_RX_SIZE ||
 509             !is_power_of_2(ring->rx_pending) ||
 510             ring->tx_pending < DMA_MIN_TX_SIZE ||
 511             ring->tx_pending > DMA_MAX_TX_SIZE ||
 512             !is_power_of_2(ring->tx_pending))
 513                 return -EINVAL;
 514
 515         return stmmac_reinit_ringparam(netdev, ring->rx_pending,
 516                                        ring->tx_pending);
 517 }
 518
 519 static void
 520 stmmac_get_pauseparam(struct net_device *netdev,
 521                       struct ethtool_pauseparam *pause)
 522 {
 523         struct stmmac_priv *priv = netdev_priv(netdev);
 524         struct rgmii_adv adv_lp;
 525
 526         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 527                 pause->autoneg = 1;
 528                 if (!adv_lp.pause)
 529                         return;
 530         } else {
 531                 phylink_ethtool_get_pauseparam(priv->phylink, pause);
 532         }
 533 }
 534
 535 static int
 536 stmmac_set_pauseparam(struct net_device *netdev,
 537                       struct ethtool_pauseparam *pause)
 538 {
 539         struct stmmac_priv *priv = netdev_priv(netdev);
 540         struct rgmii_adv adv_lp;
 541
 542         if (priv->hw->pcs && !stmmac_pcs_get_adv_lp(priv, priv->ioaddr, &adv_lp)) {
 543                 pause->autoneg = 1;
 544                 if (!adv_lp.pause)
 545                         return -EOPNOTSUPP;
 546                 return 0;
 547         } else {
 548                 return phylink_ethtool_set_pauseparam(priv->phylink, pause);
 549         }
 550 }
 551
 552 static u64 stmmac_get_rx_normal_irq_n(struct stmmac_priv *priv, int q)
 553 {
 554         u64 total;
 555         int cpu;
 556
 557         total = 0;
 558         for_each_possible_cpu(cpu) {
 559                 struct stmmac_pcpu_stats *pcpu;
 560                 unsigned int start;
 561                 u64 irq_n;
 562
 563                 pcpu = per_cpu_ptr(priv->xstats.pcpu_stats, cpu);
 564                 do {
 565                         start = u64_stats_fetch_begin(&pcpu->syncp);
 566                         irq_n = u64_stats_read(&pcpu->rx_normal_irq_n[q]);
 567                 } while (u64_stats_fetch_retry(&pcpu->syncp, start));
 568                 total += irq_n;
 569         }
 570         return total;
 571 }
 572
 573 static u64 stmmac_get_tx_normal_irq_n(struct stmmac_priv *priv, int q)
 574 {
 575         u64 total;
 576         int cpu;
 577
 578         total = 0;
 579         for_each_possible_cpu(cpu) {
 580                 struct stmmac_pcpu_stats *pcpu;
 581                 unsigned int start;
 582                 u64 irq_n;
 583
 584                 pcpu = per_cpu_ptr(priv->xstats.pcpu_stats, cpu);
 585                 do {
 586                         start = u64_stats_fetch_begin(&pcpu->syncp);
 587                         irq_n = u64_stats_read(&pcpu->tx_normal_irq_n[q]);
 588                 } while (u64_stats_fetch_retry(&pcpu->syncp, start));
 589                 total += irq_n;
 590         }
 591         return total;
 592 }
 593
 594 static void stmmac_get_per_qstats(struct stmmac_priv *priv, u64 *data)
 595 {
 596         u32 tx_cnt = priv->plat->tx_queues_to_use;
 597         u32 rx_cnt = priv->plat->rx_queues_to_use;
 598         unsigned int start;
 599         int q;
 600
 601         for (q = 0; q < tx_cnt; q++) {
 602                 struct stmmac_txq_stats *txq_stats = &priv->xstats.txq_stats[q];
 603                 u64 pkt_n;
 604
 605                 do {
 606                         start = u64_stats_fetch_begin(&txq_stats->napi_syncp);
 607                         pkt_n = u64_stats_read(&txq_stats->napi.tx_pkt_n);
 608                 } while (u64_stats_fetch_retry(&txq_stats->napi_syncp, start));
 609
 610                 *data++ = pkt_n;
 611                 *data++ = stmmac_get_tx_normal_irq_n(priv, q);
 612         }
 613
 614         for (q = 0; q < rx_cnt; q++) {
 615                 struct stmmac_rxq_stats *rxq_stats = &priv->xstats.rxq_stats[q];
 616                 u64 pkt_n;
 617
 618                 do {
 619                         start = u64_stats_fetch_begin(&rxq_stats->napi_syncp);
 620                         pkt_n = u64_stats_read(&rxq_stats->napi.rx_pkt_n);
 621                 } while (u64_stats_fetch_retry(&rxq_stats->napi_syncp, start));
 622
 623                 *data++ = pkt_n;
 624                 *data++ = stmmac_get_rx_normal_irq_n(priv, q);
 625         }
 626 }
 627
 628 static void stmmac_get_ethtool_stats(struct net_device *dev,
 629                                  struct ethtool_stats *dummy, u64 *data)
 630 {
 631         struct stmmac_priv *priv = netdev_priv(dev);
 632         u32 rx_queues_count = priv->plat->rx_queues_to_use;
 633         u32 tx_queues_count = priv->plat->tx_queues_to_use;
 634         u64 napi_poll = 0, normal_irq_n = 0;
 635         int i, j = 0, pos, ret;
 636         unsigned long count;
 637         unsigned int start;
 638
 639         if (priv->dma_cap.asp) {
 640                 for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 641                         if (!stmmac_safety_feat_dump(priv, &priv->sstats, i,
 642                                                 &count, NULL))
 643                                 data[j++] = count;
 644                 }
 645         }
 646
 647         /* Update the DMA HW counters for dwmac10/100 */
 648         ret = stmmac_dma_diagnostic_fr(priv, &priv->xstats, priv->ioaddr);
 649         if (ret) {
 650                 /* If supported, for new GMAC chips expose the MMC counters */
 651                 if (priv->dma_cap.rmon) {
 652                         stmmac_mmc_read(priv, priv->mmcaddr, &priv->mmc);
 653
 654                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 655                                 char *p;
 656                                 p = (char *)priv + stmmac_mmc[i].stat_offset;
 657
 658                                 data[j++] = (stmmac_mmc[i].sizeof_stat ==
 659                                              sizeof(u64)) ? (*(u64 *)p) :
 660                                              (*(u32 *)p);
 661                         }
 662                 }
 663                 if (priv->eee_enabled) {
 664                         int val = phylink_get_eee_err(priv->phylink);
 665                         if (val)
 666                                 priv->xstats.phy_eee_wakeup_error_n = val;
 667                 }
 668
 669                 if (priv->synopsys_id >= DWMAC_CORE_3_50)
 670                         stmmac_mac_debug(priv, priv->ioaddr,
 671                                         (void *)&priv->xstats,
 672                                         rx_queues_count, tx_queues_count);
 673         }
 674         for (i = 0; i < STMMAC_STATS_LEN; i++) {
 675                 char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
 676                 data[j++] = (stmmac_gstrings_stats[i].sizeof_stat ==
 677                              sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
 678         }
 679
 680         pos = j;
 681         for (i = 0; i < rx_queues_count; i++) {
 682                 struct stmmac_rxq_stats *rxq_stats = &priv->xstats.rxq_stats[i];
 683                 struct stmmac_napi_rx_stats snapshot;
 684                 u64 n_irq;
 685
 686                 j = pos;
 687                 do {
 688                         start = u64_stats_fetch_begin(&rxq_stats->napi_syncp);
 689                         snapshot = rxq_stats->napi;
 690                 } while (u64_stats_fetch_retry(&rxq_stats->napi_syncp, start));
 691
 692                 data[j++] += u64_stats_read(&snapshot.rx_pkt_n);
 693                 n_irq = stmmac_get_rx_normal_irq_n(priv, i);
 694                 data[j++] += n_irq;
 695                 normal_irq_n += n_irq;
 696                 napi_poll += u64_stats_read(&snapshot.poll);
 697         }
 698
 699         pos = j;
 700         for (i = 0; i < tx_queues_count; i++) {
 701                 struct stmmac_txq_stats *txq_stats = &priv->xstats.txq_stats[i];
 702                 struct stmmac_napi_tx_stats napi_snapshot;
 703                 struct stmmac_q_tx_stats q_snapshot;
 704                 u64 n_irq;
 705
 706                 j = pos;
 707                 do {
 708                         start = u64_stats_fetch_begin(&txq_stats->q_syncp);
 709                         q_snapshot = txq_stats->q;
 710                 } while (u64_stats_fetch_retry(&txq_stats->q_syncp, start));
 711                 do {
 712                         start = u64_stats_fetch_begin(&txq_stats->napi_syncp);
 713                         napi_snapshot = txq_stats->napi;
 714                 } while (u64_stats_fetch_retry(&txq_stats->napi_syncp, start));
 715
 716                 data[j++] += u64_stats_read(&napi_snapshot.tx_pkt_n);
 717                 n_irq = stmmac_get_tx_normal_irq_n(priv, i);
 718                 data[j++] += n_irq;
 719                 normal_irq_n += n_irq;
 720                 data[j++] += u64_stats_read(&napi_snapshot.tx_clean);
 721                 data[j++] += u64_stats_read(&q_snapshot.tx_set_ic_bit) +
 722                         u64_stats_read(&napi_snapshot.tx_set_ic_bit);
 723                 data[j++] += u64_stats_read(&q_snapshot.tx_tso_frames);
 724                 data[j++] += u64_stats_read(&q_snapshot.tx_tso_nfrags);
 725                 napi_poll += u64_stats_read(&napi_snapshot.poll);
 726         }
 727         normal_irq_n += priv->xstats.rx_early_irq;
 728         data[j++] = normal_irq_n;
 729         data[j++] = napi_poll;
 730
 731         stmmac_get_per_qstats(priv, &data[j]);
 732 }
 733
 734 static int stmmac_get_sset_count(struct net_device *netdev, int sset)
 735 {
 736         struct stmmac_priv *priv = netdev_priv(netdev);
 737         u32 tx_cnt = priv->plat->tx_queues_to_use;
 738         u32 rx_cnt = priv->plat->rx_queues_to_use;
 739         int i, len, safety_len = 0;
 740
 741         switch (sset) {
 742         case ETH_SS_STATS:
 743                 len = STMMAC_STATS_LEN + STMMAC_QSTATS +
 744                       STMMAC_TXQ_STATS * tx_cnt +
 745                       STMMAC_RXQ_STATS * rx_cnt;
 746
 747                 if (priv->dma_cap.rmon)
 748                         len += STMMAC_MMC_STATS_LEN;
 749                 if (priv->dma_cap.asp) {
 750                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 751                                 if (!stmmac_safety_feat_dump(priv,
 752                                                         &priv->sstats, i,
 753                                                         NULL, NULL))
 754                                         safety_len++;
 755                         }
 756
 757                         len += safety_len;
 758                 }
 759
 760                 return len;
 761         case ETH_SS_TEST:
 762                 return stmmac_selftest_get_count(priv);
 763         default:
 764                 return -EOPNOTSUPP;
 765         }
 766 }
 767
 768 static void stmmac_get_qstats_string(struct stmmac_priv *priv, u8 *data)
 769 {
 770         u32 tx_cnt = priv->plat->tx_queues_to_use;
 771         u32 rx_cnt = priv->plat->rx_queues_to_use;
 772         int q, stat;
 773
 774         for (q = 0; q < tx_cnt; q++) {
 775                 for (stat = 0; stat < STMMAC_TXQ_STATS; stat++) {
 776                         snprintf(data, ETH_GSTRING_LEN, "q%d_%s", q,
 777                                  stmmac_qstats_tx_string[stat]);
 778                         data += ETH_GSTRING_LEN;
 779                 }
 780         }
 781         for (q = 0; q < rx_cnt; q++) {
 782                 for (stat = 0; stat < STMMAC_RXQ_STATS; stat++) {
 783                         snprintf(data, ETH_GSTRING_LEN, "q%d_%s", q,
 784                                  stmmac_qstats_rx_string[stat]);
 785                         data += ETH_GSTRING_LEN;
 786                 }
 787         }
 788 }
 789
 790 static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 791 {
 792         int i;
 793         u8 *p = data;
 794         struct stmmac_priv *priv = netdev_priv(dev);
 795
 796         switch (stringset) {
 797         case ETH_SS_STATS:
 798                 if (priv->dma_cap.asp) {
 799                         for (i = 0; i < STMMAC_SAFETY_FEAT_SIZE; i++) {
 800                                 const char *desc;
 801                                 if (!stmmac_safety_feat_dump(priv,
 802                                                         &priv->sstats, i,
 803                                                         NULL, &desc)) {
 804                                         memcpy(p, desc, ETH_GSTRING_LEN);
 805                                         p += ETH_GSTRING_LEN;
 806                                 }
 807                         }
 808                 }
 809                 if (priv->dma_cap.rmon)
 810                         for (i = 0; i < STMMAC_MMC_STATS_LEN; i++) {
 811                                 memcpy(p, stmmac_mmc[i].stat_string,
 812                                        ETH_GSTRING_LEN);
 813                                 p += ETH_GSTRING_LEN;
 814                         }
 815                 for (i = 0; i < STMMAC_STATS_LEN; i++) {
 816                         memcpy(p, stmmac_gstrings_stats[i].stat_string, ETH_GSTRING_LEN);
 817                         p += ETH_GSTRING_LEN;
 818                 }
 819                 for (i = 0; i < STMMAC_QSTATS; i++) {
 820                         memcpy(p, stmmac_qstats_string[i], ETH_GSTRING_LEN);
 821                         p += ETH_GSTRING_LEN;
 822                 }
 823                 stmmac_get_qstats_string(priv, p);
 824                 break;
 825         case ETH_SS_TEST:
 826                 stmmac_selftest_get_strings(priv, p);
 827                 break;
 828         default:
 829                 WARN_ON(1);
 830                 break;
 831         }
 832 }
 833
 834 /* Currently only support WOL through Magic packet. */
 835 static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 836 {
 837         struct stmmac_priv *priv = netdev_priv(dev);
 838
 839         if (!priv->plat->pmt)
 840                 return phylink_ethtool_get_wol(priv->phylink, wol);
 841
 842         mutex_lock(&priv->lock);
 843         if (device_can_wakeup(priv->device)) {
 844                 wol->supported = WAKE_MAGIC | WAKE_UCAST;
 845                 if (priv->hw_cap_support && !priv->dma_cap.pmt_magic_frame)
 846                         wol->supported &= ~WAKE_MAGIC;
 847                 wol->wolopts = priv->wolopts;
 848         }
 849         mutex_unlock(&priv->lock);
 850 }
 851
 852 static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 853 {
 854         struct stmmac_priv *priv = netdev_priv(dev);
 855         u32 support = WAKE_MAGIC | WAKE_UCAST;
 856
 857         if (!device_can_wakeup(priv->device))
 858                 return -EOPNOTSUPP;
 859
 860         if (!priv->plat->pmt) {
 861                 int ret = phylink_ethtool_set_wol(priv->phylink, wol);
 862
 863                 if (!ret)
 864                         device_set_wakeup_enable(priv->device, !!wol->wolopts);
 865                 return ret;
 866         }
 867
 868         /* By default almost all GMAC devices support the WoL via
 869          * magic frame but we can disable it if the HW capability
 870          * register shows no support for pmt_magic_frame. */
 871         if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame))
 872                 wol->wolopts &= ~WAKE_MAGIC;
 873
 874         if (wol->wolopts & ~support)
 875                 return -EINVAL;
 876
 877         if (wol->wolopts) {
 878                 pr_info("stmmac: wakeup enable\n");
 879                 device_set_wakeup_enable(priv->device, 1);
 880                 /* Avoid unbalanced enable_irq_wake calls */
 881                 if (priv->wol_irq_disabled)
 882                         enable_irq_wake(priv->wol_irq);
 883                 priv->wol_irq_disabled = false;
 884         } else {
 885                 device_set_wakeup_enable(priv->device, 0);
 886                 /* Avoid unbalanced disable_irq_wake calls */
 887                 if (!priv->wol_irq_disabled)
 888                         disable_irq_wake(priv->wol_irq);
 889                 priv->wol_irq_disabled = true;
 890         }
 891
 892         mutex_lock(&priv->lock);
 893         priv->wolopts = wol->wolopts;
 894         mutex_unlock(&priv->lock);
 895
 896         return 0;
 897 }
 898
 899 static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 900                                      struct ethtool_keee *edata)
 901 {
 902         struct stmmac_priv *priv = netdev_priv(dev);
 903
 904         if (!priv->dma_cap.eee)
 905                 return -EOPNOTSUPP;
 906
 907         edata->tx_lpi_timer = priv->tx_lpi_timer;
 908         edata->tx_lpi_enabled = priv->tx_lpi_enabled;
 909
 910         return phylink_ethtool_get_eee(priv->phylink, edata);
 911 }
 912
 913 static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 914                                      struct ethtool_keee *edata)
 915 {
 916         struct stmmac_priv *priv = netdev_priv(dev);
 917         int ret;
 918
 919         if (!priv->dma_cap.eee)
 920                 return -EOPNOTSUPP;
 921
 922         if (priv->tx_lpi_enabled != edata->tx_lpi_enabled)
 923                 netdev_warn(priv->dev,
 924                             "Setting EEE tx-lpi is not supported\n");
 925
 926         if (!edata->eee_enabled)
 927                 stmmac_disable_eee_mode(priv);
 928
 929         ret = phylink_ethtool_set_eee(priv->phylink, edata);
 930         if (ret)
 931                 return ret;
 932
 933         if (edata->eee_enabled &&
 934             priv->tx_lpi_timer != edata->tx_lpi_timer) {
 935                 priv->tx_lpi_timer = edata->tx_lpi_timer;
 936                 stmmac_eee_init(priv);
 937         }
 938
 939         return 0;
 940 }
 941
 942 static u32 stmmac_usec2riwt(u32 usec, struct stmmac_priv *priv)
 943 {
 944         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 945
 946         if (!clk) {
 947                 clk = priv->plat->clk_ref_rate;
 948                 if (!clk)
 949                         return 0;
 950         }
 951
 952         return (usec * (clk / 1000000)) / 256;
 953 }
 954
 955 static u32 stmmac_riwt2usec(u32 riwt, struct stmmac_priv *priv)
 956 {
 957         unsigned long clk = clk_get_rate(priv->plat->stmmac_clk);
 958
 959         if (!clk) {
 960                 clk = priv->plat->clk_ref_rate;
 961                 if (!clk)
 962                         return 0;
 963         }
 964
 965         return (riwt * 256) / (clk / 1000000);
 966 }
 967
 968 static int __stmmac_get_coalesce(struct net_device *dev,
 969                                  struct ethtool_coalesce *ec,
 970                                  int queue)
 971 {
 972         struct stmmac_priv *priv = netdev_priv(dev);
 973         u32 max_cnt;
 974         u32 rx_cnt;
 975         u32 tx_cnt;
 976
 977         rx_cnt = priv->plat->rx_queues_to_use;
 978         tx_cnt = priv->plat->tx_queues_to_use;
 979         max_cnt = max(rx_cnt, tx_cnt);
 980
 981         if (queue < 0)
 982                 queue = 0;
 983         else if (queue >= max_cnt)
 984                 return -EINVAL;
 985
 986         if (queue < tx_cnt) {
 987                 ec->tx_coalesce_usecs = priv->tx_coal_timer[queue];
 988                 ec->tx_max_coalesced_frames = priv->tx_coal_frames[queue];
 989         } else {
 990                 ec->tx_coalesce_usecs = 0;
 991                 ec->tx_max_coalesced_frames = 0;
 992         }
 993
 994         if (priv->use_riwt && queue < rx_cnt) {
 995                 ec->rx_max_coalesced_frames = priv->rx_coal_frames[queue];
 996                 ec->rx_coalesce_usecs = stmmac_riwt2usec(priv->rx_riwt[queue],
 997                                                          priv);
 998         } else {
 999                 ec->rx_max_coalesced_frames = 0;
1000                 ec->rx_coalesce_usecs = 0;
1001         }
1002
1003         return 0;
1004 }
1005
1006 static int stmmac_get_coalesce(struct net_device *dev,
1007                                struct ethtool_coalesce *ec,
1008                                struct kernel_ethtool_coalesce *kernel_coal,
1009                                struct netlink_ext_ack *extack)
1010 {
1011         return __stmmac_get_coalesce(dev, ec, -1);
1012 }
1013
1014 static int stmmac_get_per_queue_coalesce(struct net_device *dev, u32 queue,
1015                                          struct ethtool_coalesce *ec)
1016 {
1017         return __stmmac_get_coalesce(dev, ec, queue);
1018 }
1019
1020 static int __stmmac_set_coalesce(struct net_device *dev,
1021                                  struct ethtool_coalesce *ec,
1022                                  int queue)
1023 {
1024         struct stmmac_priv *priv = netdev_priv(dev);
1025         bool all_queues = false;
1026         unsigned int rx_riwt;
1027         u32 max_cnt;
1028         u32 rx_cnt;
1029         u32 tx_cnt;
1030
1031         rx_cnt = priv->plat->rx_queues_to_use;
1032         tx_cnt = priv->plat->tx_queues_to_use;
1033         max_cnt = max(rx_cnt, tx_cnt);
1034
1035         if (queue < 0)
1036                 all_queues = true;
1037         else if (queue >= max_cnt)
1038                 return -EINVAL;
1039
1040         if (priv->use_riwt) {
1041                 rx_riwt = stmmac_usec2riwt(ec->rx_coalesce_usecs, priv);
1042
1043                 if ((rx_riwt > MAX_DMA_RIWT) || (rx_riwt < MIN_DMA_RIWT))
1044                         return -EINVAL;
1045
1046                 if (all_queues) {
1047                         int i;
1048
1049                         for (i = 0; i < rx_cnt; i++) {
1050                                 priv->rx_riwt[i] = rx_riwt;
1051                                 stmmac_rx_watchdog(priv, priv->ioaddr,
1052                                                    rx_riwt, i);
1053                                 priv->rx_coal_frames[i] =
1054                                         ec->rx_max_coalesced_frames;
1055                         }
1056                 } else if (queue < rx_cnt) {
1057                         priv->rx_riwt[queue] = rx_riwt;
1058                         stmmac_rx_watchdog(priv, priv->ioaddr,
1059                                            rx_riwt, queue);
1060                         priv->rx_coal_frames[queue] =
1061                                 ec->rx_max_coalesced_frames;
1062                 }
1063         }
1064
1065         if ((ec->tx_coalesce_usecs == 0) &&
1066             (ec->tx_max_coalesced_frames == 0))
1067                 return -EINVAL;
1068
1069         if ((ec->tx_coalesce_usecs > STMMAC_MAX_COAL_TX_TICK) ||
1070             (ec->tx_max_coalesced_frames > STMMAC_TX_MAX_FRAMES))
1071                 return -EINVAL;
1072
1073         if (all_queues) {
1074                 int i;
1075
1076                 for (i = 0; i < tx_cnt; i++) {
1077                         priv->tx_coal_frames[i] =
1078                                 ec->tx_max_coalesced_frames;
1079                         priv->tx_coal_timer[i] =
1080                                 ec->tx_coalesce_usecs;
1081                 }
1082         } else if (queue < tx_cnt) {
1083                 priv->tx_coal_frames[queue] =
1084                         ec->tx_max_coalesced_frames;
1085                 priv->tx_coal_timer[queue] =
1086                         ec->tx_coalesce_usecs;
1087         }
1088
1089         return 0;
1090 }
1091
1092 static int stmmac_set_coalesce(struct net_device *dev,
1093                                struct ethtool_coalesce *ec,
1094                                struct kernel_ethtool_coalesce *kernel_coal,
1095                                struct netlink_ext_ack *extack)
1096 {
1097         return __stmmac_set_coalesce(dev, ec, -1);
1098 }
1099
1100 static int stmmac_set_per_queue_coalesce(struct net_device *dev, u32 queue,
1101                                          struct ethtool_coalesce *ec)
1102 {
1103         return __stmmac_set_coalesce(dev, ec, queue);
1104 }
1105
1106 static int stmmac_get_rxnfc(struct net_device *dev,
1107                             struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
1108 {
1109         struct stmmac_priv *priv = netdev_priv(dev);
1110
1111         switch (rxnfc->cmd) {
1112         case ETHTOOL_GRXRINGS:
1113                 rxnfc->data = priv->plat->rx_queues_to_use;
1114                 break;
1115         default:
1116                 return -EOPNOTSUPP;
1117         }
1118
1119         return 0;
1120 }
1121
1122 static u32 stmmac_get_rxfh_key_size(struct net_device *dev)
1123 {
1124         struct stmmac_priv *priv = netdev_priv(dev);
1125
1126         return sizeof(priv->rss.key);
1127 }
1128
1129 static u32 stmmac_get_rxfh_indir_size(struct net_device *dev)
1130 {
1131         struct stmmac_priv *priv = netdev_priv(dev);
1132
1133         return ARRAY_SIZE(priv->rss.table);
1134 }
1135
1136 static int stmmac_get_rxfh(struct net_device *dev,
1137                            struct ethtool_rxfh_param *rxfh)
1138 {
1139         struct stmmac_priv *priv = netdev_priv(dev);
1140         int i;
1141
1142         if (rxfh->indir) {
1143                 for (i = 0; i < ARRAY_SIZE(priv->rss.table); i++)
1144                         rxfh->indir[i] = priv->rss.table[i];
1145         }
1146
1147         if (rxfh->key)
1148                 memcpy(rxfh->key, priv->rss.key, sizeof(priv->rss.key));
1149         rxfh->hfunc = ETH_RSS_HASH_TOP;
1150
1151         return 0;
1152 }
1153
1154 static int stmmac_set_rxfh(struct net_device *dev,
1155                            struct ethtool_rxfh_param *rxfh,
1156                            struct netlink_ext_ack *extack)
1157 {
1158         struct stmmac_priv *priv = netdev_priv(dev);
1159         int i;
1160
1161         if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&
1162             rxfh->hfunc != ETH_RSS_HASH_TOP)
1163                 return -EOPNOTSUPP;
1164
1165         if (rxfh->indir) {
1166                 for (i = 0; i < ARRAY_SIZE(priv->rss.table); i++)
1167                         priv->rss.table[i] = rxfh->indir[i];
1168         }
1169
1170         if (rxfh->key)
1171                 memcpy(priv->rss.key, rxfh->key, sizeof(priv->rss.key));
1172
1173         return stmmac_rss_configure(priv, priv->hw, &priv->rss,
1174                                     priv->plat->rx_queues_to_use);
1175 }
1176
1177 static void stmmac_get_channels(struct net_device *dev,
1178                                 struct ethtool_channels *chan)
1179 {
1180         struct stmmac_priv *priv = netdev_priv(dev);
1181
1182         chan->rx_count = priv->plat->rx_queues_to_use;
1183         chan->tx_count = priv->plat->tx_queues_to_use;
1184         chan->max_rx = priv->dma_cap.number_rx_queues;
1185         chan->max_tx = priv->dma_cap.number_tx_queues;
1186 }
1187
1188 static int stmmac_set_channels(struct net_device *dev,
1189                                struct ethtool_channels *chan)
1190 {
1191         struct stmmac_priv *priv = netdev_priv(dev);
1192
1193         if (chan->rx_count > priv->dma_cap.number_rx_queues ||
1194             chan->tx_count > priv->dma_cap.number_tx_queues ||
1195             !chan->rx_count || !chan->tx_count)
1196                 return -EINVAL;
1197
1198         return stmmac_reinit_queues(dev, chan->rx_count, chan->tx_count);
1199 }
1200
1201 static int stmmac_get_ts_info(struct net_device *dev,
1202                               struct ethtool_ts_info *info)
1203 {
1204         struct stmmac_priv *priv = netdev_priv(dev);
1205
1206         if ((priv->dma_cap.time_stamp || priv->dma_cap.atime_stamp)) {
1207
1208                 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1209                                         SOF_TIMESTAMPING_TX_HARDWARE |
1210                                         SOF_TIMESTAMPING_RX_SOFTWARE |
1211                                         SOF_TIMESTAMPING_RX_HARDWARE |
1212                                         SOF_TIMESTAMPING_SOFTWARE |
1213                                         SOF_TIMESTAMPING_RAW_HARDWARE;
1214
1215                 if (priv->ptp_clock)
1216                         info->phc_index = ptp_clock_index(priv->ptp_clock);
1217
1218                 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
1219
1220                 info->rx_filters = ((1 << HWTSTAMP_FILTER_NONE) |
1221                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1222                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
1223                                     (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
1224                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
1225                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
1226                                     (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
1227                                     (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
1228                                     (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
1229                                     (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
1230                                     (1 << HWTSTAMP_FILTER_ALL));
1231                 return 0;
1232         } else
1233                 return ethtool_op_get_ts_info(dev, info);
1234 }
1235
1236 static int stmmac_get_tunable(struct net_device *dev,
1237                               const struct ethtool_tunable *tuna, void *data)
1238 {
1239         struct stmmac_priv *priv = netdev_priv(dev);
1240         int ret = 0;
1241
1242         switch (tuna->id) {
1243         case ETHTOOL_RX_COPYBREAK:
1244                 *(u32 *)data = priv->rx_copybreak;
1245                 break;
1246         default:
1247                 ret = -EINVAL;
1248                 break;
1249         }
1250
1251         return ret;
1252 }
1253
1254 static int stmmac_set_tunable(struct net_device *dev,
1255                               const struct ethtool_tunable *tuna,
1256                               const void *data)
1257 {
1258         struct stmmac_priv *priv = netdev_priv(dev);
1259         int ret = 0;
1260
1261         switch (tuna->id) {
1262         case ETHTOOL_RX_COPYBREAK:
1263                 priv->rx_copybreak = *(u32 *)data;
1264                 break;
1265         default:
1266                 ret = -EINVAL;
1267                 break;
1268         }
1269
1270         return ret;
1271 }
1272
1273 static const struct ethtool_ops stmmac_ethtool_ops = {
1274         .supported_coalesce_params = ETHTOOL_COALESCE_USECS |
1275                                      ETHTOOL_COALESCE_MAX_FRAMES,
1276         .begin = stmmac_check_if_running,
1277         .get_drvinfo = stmmac_ethtool_getdrvinfo,
1278         .get_msglevel = stmmac_ethtool_getmsglevel,
1279         .set_msglevel = stmmac_ethtool_setmsglevel,
1280         .get_regs = stmmac_ethtool_gregs,
1281         .get_regs_len = stmmac_ethtool_get_regs_len,
1282         .get_link = ethtool_op_get_link,
1283         .nway_reset = stmmac_nway_reset,
1284         .get_ringparam = stmmac_get_ringparam,
1285         .set_ringparam = stmmac_set_ringparam,
1286         .get_pauseparam = stmmac_get_pauseparam,
1287         .set_pauseparam = stmmac_set_pauseparam,
1288         .self_test = stmmac_selftest_run,
1289         .get_ethtool_stats = stmmac_get_ethtool_stats,
1290         .get_strings = stmmac_get_strings,
1291         .get_wol = stmmac_get_wol,
1292         .set_wol = stmmac_set_wol,
1293         .get_eee = stmmac_ethtool_op_get_eee,
1294         .set_eee = stmmac_ethtool_op_set_eee,
1295         .get_sset_count = stmmac_get_sset_count,
1296         .get_rxnfc = stmmac_get_rxnfc,
1297         .get_rxfh_key_size = stmmac_get_rxfh_key_size,
1298         .get_rxfh_indir_size = stmmac_get_rxfh_indir_size,
1299         .get_rxfh = stmmac_get_rxfh,
1300         .set_rxfh = stmmac_set_rxfh,
1301         .get_ts_info = stmmac_get_ts_info,
1302         .get_coalesce = stmmac_get_coalesce,
1303         .set_coalesce = stmmac_set_coalesce,
1304         .get_per_queue_coalesce = stmmac_get_per_queue_coalesce,
1305         .set_per_queue_coalesce = stmmac_set_per_queue_coalesce,
1306         .get_channels = stmmac_get_channels,
1307         .set_channels = stmmac_set_channels,
1308         .get_tunable = stmmac_get_tunable,
1309         .set_tunable = stmmac_set_tunable,
1310         .get_link_ksettings = stmmac_ethtool_get_link_ksettings,
1311         .set_link_ksettings = stmmac_ethtool_set_link_ksettings,
1312 };
1313
1314 void stmmac_set_ethtool_ops(struct net_device *netdev)
1315 {
1316         netdev->ethtool_ops = &stmmac_ethtool_ops;
1317 }