linux/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
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   1/*
   2 * AMD 10Gb Ethernet driver
   3 *
   4 * This file is available to you under your choice of the following two
   5 * licenses:
   6 *
   7 * License 1: GPLv2
   8 *
   9 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
  10 *
  11 * This file is free software; you may copy, redistribute and/or modify
  12 * it under the terms of the GNU General Public License as published by
  13 * the Free Software Foundation, either version 2 of the License, or (at
  14 * your option) any later version.
  15 *
  16 * This file is distributed in the hope that it will be useful, but
  17 * WITHOUT ANY WARRANTY; without even the implied warranty of
  18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  19 * General Public License for more details.
  20 *
  21 * You should have received a copy of the GNU General Public License
  22 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23 *
  24 * This file incorporates work covered by the following copyright and
  25 * permission notice:
  26 *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
  27 *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
  28 *     Inc. unless otherwise expressly agreed to in writing between Synopsys
  29 *     and you.
  30 *
  31 *     The Software IS NOT an item of Licensed Software or Licensed Product
  32 *     under any End User Software License Agreement or Agreement for Licensed
  33 *     Product with Synopsys or any supplement thereto.  Permission is hereby
  34 *     granted, free of charge, to any person obtaining a copy of this software
  35 *     annotated with this license and the Software, to deal in the Software
  36 *     without restriction, including without limitation the rights to use,
  37 *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  38 *     of the Software, and to permit persons to whom the Software is furnished
  39 *     to do so, subject to the following conditions:
  40 *
  41 *     The above copyright notice and this permission notice shall be included
  42 *     in all copies or substantial portions of the Software.
  43 *
  44 *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
  45 *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  46 *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  47 *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
  48 *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  49 *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  50 *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  51 *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  52 *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  53 *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  54 *     THE POSSIBILITY OF SUCH DAMAGE.
  55 *
  56 *
  57 * License 2: Modified BSD
  58 *
  59 * Copyright (c) 2014-2016 Advanced Micro Devices, Inc.
  60 * All rights reserved.
  61 *
  62 * Redistribution and use in source and binary forms, with or without
  63 * modification, are permitted provided that the following conditions are met:
  64 *     * Redistributions of source code must retain the above copyright
  65 *       notice, this list of conditions and the following disclaimer.
  66 *     * Redistributions in binary form must reproduce the above copyright
  67 *       notice, this list of conditions and the following disclaimer in the
  68 *       documentation and/or other materials provided with the distribution.
  69 *     * Neither the name of Advanced Micro Devices, Inc. nor the
  70 *       names of its contributors may be used to endorse or promote products
  71 *       derived from this software without specific prior written permission.
  72 *
  73 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  74 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  75 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  76 * ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
  77 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  78 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  79 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  80 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  81 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  82 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  83 *
  84 * This file incorporates work covered by the following copyright and
  85 * permission notice:
  86 *     The Synopsys DWC ETHER XGMAC Software Driver and documentation
  87 *     (hereinafter "Software") is an unsupported proprietary work of Synopsys,
  88 *     Inc. unless otherwise expressly agreed to in writing between Synopsys
  89 *     and you.
  90 *
  91 *     The Software IS NOT an item of Licensed Software or Licensed Product
  92 *     under any End User Software License Agreement or Agreement for Licensed
  93 *     Product with Synopsys or any supplement thereto.  Permission is hereby
  94 *     granted, free of charge, to any person obtaining a copy of this software
  95 *     annotated with this license and the Software, to deal in the Software
  96 *     without restriction, including without limitation the rights to use,
  97 *     copy, modify, merge, publish, distribute, sublicense, and/or sell copies
  98 *     of the Software, and to permit persons to whom the Software is furnished
  99 *     to do so, subject to the following conditions:
 100 *
 101 *     The above copyright notice and this permission notice shall be included
 102 *     in all copies or substantial portions of the Software.
 103 *
 104 *     THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
 105 *     BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 106 *     TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 107 *     PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
 108 *     BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 109 *     CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 110 *     SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 111 *     INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 112 *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 113 *     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 114 *     THE POSSIBILITY OF SUCH DAMAGE.
 115 */
 116
 117#include <linux/spinlock.h>
 118#include <linux/phy.h>
 119#include <linux/net_tstamp.h>
 120
 121#include "xgbe.h"
 122#include "xgbe-common.h"
 123
 124struct xgbe_stats {
 125        char stat_string[ETH_GSTRING_LEN];
 126        int stat_size;
 127        int stat_offset;
 128};
 129
 130#define XGMAC_MMC_STAT(_string, _var)                           \
 131        { _string,                                              \
 132          FIELD_SIZEOF(struct xgbe_mmc_stats, _var),            \
 133          offsetof(struct xgbe_prv_data, mmc_stats._var),       \
 134        }
 135
 136#define XGMAC_EXT_STAT(_string, _var)                           \
 137        { _string,                                              \
 138          FIELD_SIZEOF(struct xgbe_ext_stats, _var),            \
 139          offsetof(struct xgbe_prv_data, ext_stats._var),       \
 140        }
 141
 142static const struct xgbe_stats xgbe_gstring_stats[] = {
 143        XGMAC_MMC_STAT("tx_bytes", txoctetcount_gb),
 144        XGMAC_MMC_STAT("tx_packets", txframecount_gb),
 145        XGMAC_MMC_STAT("tx_unicast_packets", txunicastframes_gb),
 146        XGMAC_MMC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
 147        XGMAC_MMC_STAT("tx_multicast_packets", txmulticastframes_gb),
 148        XGMAC_MMC_STAT("tx_vlan_packets", txvlanframes_g),
 149        XGMAC_EXT_STAT("tx_vxlan_packets", tx_vxlan_packets),
 150        XGMAC_EXT_STAT("tx_tso_packets", tx_tso_packets),
 151        XGMAC_MMC_STAT("tx_64_byte_packets", tx64octets_gb),
 152        XGMAC_MMC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
 153        XGMAC_MMC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
 154        XGMAC_MMC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
 155        XGMAC_MMC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
 156        XGMAC_MMC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
 157        XGMAC_MMC_STAT("tx_underflow_errors", txunderflowerror),
 158        XGMAC_MMC_STAT("tx_pause_frames", txpauseframes),
 159
 160        XGMAC_MMC_STAT("rx_bytes", rxoctetcount_gb),
 161        XGMAC_MMC_STAT("rx_packets", rxframecount_gb),
 162        XGMAC_MMC_STAT("rx_unicast_packets", rxunicastframes_g),
 163        XGMAC_MMC_STAT("rx_broadcast_packets", rxbroadcastframes_g),
 164        XGMAC_MMC_STAT("rx_multicast_packets", rxmulticastframes_g),
 165        XGMAC_MMC_STAT("rx_vlan_packets", rxvlanframes_gb),
 166        XGMAC_EXT_STAT("rx_vxlan_packets", rx_vxlan_packets),
 167        XGMAC_MMC_STAT("rx_64_byte_packets", rx64octets_gb),
 168        XGMAC_MMC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
 169        XGMAC_MMC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
 170        XGMAC_MMC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
 171        XGMAC_MMC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
 172        XGMAC_MMC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
 173        XGMAC_MMC_STAT("rx_undersize_packets", rxundersize_g),
 174        XGMAC_MMC_STAT("rx_oversize_packets", rxoversize_g),
 175        XGMAC_MMC_STAT("rx_crc_errors", rxcrcerror),
 176        XGMAC_MMC_STAT("rx_crc_errors_small_packets", rxrunterror),
 177        XGMAC_MMC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
 178        XGMAC_MMC_STAT("rx_length_errors", rxlengtherror),
 179        XGMAC_MMC_STAT("rx_out_of_range_errors", rxoutofrangetype),
 180        XGMAC_MMC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
 181        XGMAC_MMC_STAT("rx_watchdog_errors", rxwatchdogerror),
 182        XGMAC_EXT_STAT("rx_csum_errors", rx_csum_errors),
 183        XGMAC_EXT_STAT("rx_vxlan_csum_errors", rx_vxlan_csum_errors),
 184        XGMAC_MMC_STAT("rx_pause_frames", rxpauseframes),
 185        XGMAC_EXT_STAT("rx_split_header_packets", rx_split_header_packets),
 186        XGMAC_EXT_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
 187};
 188
 189#define XGBE_STATS_COUNT        ARRAY_SIZE(xgbe_gstring_stats)
 190
 191static void xgbe_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 192{
 193        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 194        int i;
 195
 196        switch (stringset) {
 197        case ETH_SS_STATS:
 198                for (i = 0; i < XGBE_STATS_COUNT; i++) {
 199                        memcpy(data, xgbe_gstring_stats[i].stat_string,
 200                               ETH_GSTRING_LEN);
 201                        data += ETH_GSTRING_LEN;
 202                }
 203                for (i = 0; i < pdata->tx_ring_count; i++) {
 204                        sprintf(data, "txq_%u_packets", i);
 205                        data += ETH_GSTRING_LEN;
 206                        sprintf(data, "txq_%u_bytes", i);
 207                        data += ETH_GSTRING_LEN;
 208                }
 209                for (i = 0; i < pdata->rx_ring_count; i++) {
 210                        sprintf(data, "rxq_%u_packets", i);
 211                        data += ETH_GSTRING_LEN;
 212                        sprintf(data, "rxq_%u_bytes", i);
 213                        data += ETH_GSTRING_LEN;
 214                }
 215                break;
 216        }
 217}
 218
 219static void xgbe_get_ethtool_stats(struct net_device *netdev,
 220                                   struct ethtool_stats *stats, u64 *data)
 221{
 222        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 223        u8 *stat;
 224        int i;
 225
 226        pdata->hw_if.read_mmc_stats(pdata);
 227        for (i = 0; i < XGBE_STATS_COUNT; i++) {
 228                stat = (u8 *)pdata + xgbe_gstring_stats[i].stat_offset;
 229                *data++ = *(u64 *)stat;
 230        }
 231        for (i = 0; i < pdata->tx_ring_count; i++) {
 232                *data++ = pdata->ext_stats.txq_packets[i];
 233                *data++ = pdata->ext_stats.txq_bytes[i];
 234        }
 235        for (i = 0; i < pdata->rx_ring_count; i++) {
 236                *data++ = pdata->ext_stats.rxq_packets[i];
 237                *data++ = pdata->ext_stats.rxq_bytes[i];
 238        }
 239}
 240
 241static int xgbe_get_sset_count(struct net_device *netdev, int stringset)
 242{
 243        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 244        int ret;
 245
 246        switch (stringset) {
 247        case ETH_SS_STATS:
 248                ret = XGBE_STATS_COUNT +
 249                      (pdata->tx_ring_count * 2) +
 250                      (pdata->rx_ring_count * 2);
 251                break;
 252
 253        default:
 254                ret = -EOPNOTSUPP;
 255        }
 256
 257        return ret;
 258}
 259
 260static void xgbe_get_pauseparam(struct net_device *netdev,
 261                                struct ethtool_pauseparam *pause)
 262{
 263        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 264
 265        pause->autoneg = pdata->phy.pause_autoneg;
 266        pause->tx_pause = pdata->phy.tx_pause;
 267        pause->rx_pause = pdata->phy.rx_pause;
 268}
 269
 270static int xgbe_set_pauseparam(struct net_device *netdev,
 271                               struct ethtool_pauseparam *pause)
 272{
 273        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 274        struct ethtool_link_ksettings *lks = &pdata->phy.lks;
 275        int ret = 0;
 276
 277        if (pause->autoneg && (pdata->phy.autoneg != AUTONEG_ENABLE)) {
 278                netdev_err(netdev,
 279                           "autoneg disabled, pause autoneg not available\n");
 280                return -EINVAL;
 281        }
 282
 283        pdata->phy.pause_autoneg = pause->autoneg;
 284        pdata->phy.tx_pause = pause->tx_pause;
 285        pdata->phy.rx_pause = pause->rx_pause;
 286
 287        XGBE_CLR_ADV(lks, Pause);
 288        XGBE_CLR_ADV(lks, Asym_Pause);
 289
 290        if (pause->rx_pause) {
 291                XGBE_SET_ADV(lks, Pause);
 292                XGBE_SET_ADV(lks, Asym_Pause);
 293        }
 294
 295        if (pause->tx_pause) {
 296                /* Equivalent to XOR of Asym_Pause */
 297                if (XGBE_ADV(lks, Asym_Pause))
 298                        XGBE_CLR_ADV(lks, Asym_Pause);
 299                else
 300                        XGBE_SET_ADV(lks, Asym_Pause);
 301        }
 302
 303        if (netif_running(netdev))
 304                ret = pdata->phy_if.phy_config_aneg(pdata);
 305
 306        return ret;
 307}
 308
 309static int xgbe_get_link_ksettings(struct net_device *netdev,
 310                                   struct ethtool_link_ksettings *cmd)
 311{
 312        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 313        struct ethtool_link_ksettings *lks = &pdata->phy.lks;
 314
 315        cmd->base.phy_address = pdata->phy.address;
 316
 317        cmd->base.autoneg = pdata->phy.autoneg;
 318        cmd->base.speed = pdata->phy.speed;
 319        cmd->base.duplex = pdata->phy.duplex;
 320
 321        cmd->base.port = PORT_NONE;
 322
 323        XGBE_LM_COPY(cmd, supported, lks, supported);
 324        XGBE_LM_COPY(cmd, advertising, lks, advertising);
 325        XGBE_LM_COPY(cmd, lp_advertising, lks, lp_advertising);
 326
 327        return 0;
 328}
 329
 330static int xgbe_set_link_ksettings(struct net_device *netdev,
 331                                   const struct ethtool_link_ksettings *cmd)
 332{
 333        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 334        struct ethtool_link_ksettings *lks = &pdata->phy.lks;
 335        __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
 336        u32 speed;
 337        int ret;
 338
 339        speed = cmd->base.speed;
 340
 341        if (cmd->base.phy_address != pdata->phy.address) {
 342                netdev_err(netdev, "invalid phy address %hhu\n",
 343                           cmd->base.phy_address);
 344                return -EINVAL;
 345        }
 346
 347        if ((cmd->base.autoneg != AUTONEG_ENABLE) &&
 348            (cmd->base.autoneg != AUTONEG_DISABLE)) {
 349                netdev_err(netdev, "unsupported autoneg %hhu\n",
 350                           cmd->base.autoneg);
 351                return -EINVAL;
 352        }
 353
 354        if (cmd->base.autoneg == AUTONEG_DISABLE) {
 355                if (!pdata->phy_if.phy_valid_speed(pdata, speed)) {
 356                        netdev_err(netdev, "unsupported speed %u\n", speed);
 357                        return -EINVAL;
 358                }
 359
 360                if (cmd->base.duplex != DUPLEX_FULL) {
 361                        netdev_err(netdev, "unsupported duplex %hhu\n",
 362                                   cmd->base.duplex);
 363                        return -EINVAL;
 364                }
 365        }
 366
 367        netif_dbg(pdata, link, netdev,
 368                  "requested advertisement 0x%*pb, phy supported 0x%*pb\n",
 369                  __ETHTOOL_LINK_MODE_MASK_NBITS, cmd->link_modes.advertising,
 370                  __ETHTOOL_LINK_MODE_MASK_NBITS, lks->link_modes.supported);
 371
 372        bitmap_and(advertising,
 373                   cmd->link_modes.advertising, lks->link_modes.supported,
 374                   __ETHTOOL_LINK_MODE_MASK_NBITS);
 375
 376        if ((cmd->base.autoneg == AUTONEG_ENABLE) &&
 377            bitmap_empty(advertising, __ETHTOOL_LINK_MODE_MASK_NBITS)) {
 378                netdev_err(netdev,
 379                           "unsupported requested advertisement\n");
 380                return -EINVAL;
 381        }
 382
 383        ret = 0;
 384        pdata->phy.autoneg = cmd->base.autoneg;
 385        pdata->phy.speed = speed;
 386        pdata->phy.duplex = cmd->base.duplex;
 387        bitmap_copy(lks->link_modes.advertising, advertising,
 388                    __ETHTOOL_LINK_MODE_MASK_NBITS);
 389
 390        if (cmd->base.autoneg == AUTONEG_ENABLE)
 391                XGBE_SET_ADV(lks, Autoneg);
 392        else
 393                XGBE_CLR_ADV(lks, Autoneg);
 394
 395        if (netif_running(netdev))
 396                ret = pdata->phy_if.phy_config_aneg(pdata);
 397
 398        return ret;
 399}
 400
 401static void xgbe_get_drvinfo(struct net_device *netdev,
 402                             struct ethtool_drvinfo *drvinfo)
 403{
 404        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 405        struct xgbe_hw_features *hw_feat = &pdata->hw_feat;
 406
 407        strlcpy(drvinfo->driver, XGBE_DRV_NAME, sizeof(drvinfo->driver));
 408        strlcpy(drvinfo->version, XGBE_DRV_VERSION, sizeof(drvinfo->version));
 409        strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
 410                sizeof(drvinfo->bus_info));
 411        snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d",
 412                 XGMAC_GET_BITS(hw_feat->version, MAC_VR, USERVER),
 413                 XGMAC_GET_BITS(hw_feat->version, MAC_VR, DEVID),
 414                 XGMAC_GET_BITS(hw_feat->version, MAC_VR, SNPSVER));
 415}
 416
 417static u32 xgbe_get_msglevel(struct net_device *netdev)
 418{
 419        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 420
 421        return pdata->msg_enable;
 422}
 423
 424static void xgbe_set_msglevel(struct net_device *netdev, u32 msglevel)
 425{
 426        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 427
 428        pdata->msg_enable = msglevel;
 429}
 430
 431static int xgbe_get_coalesce(struct net_device *netdev,
 432                             struct ethtool_coalesce *ec)
 433{
 434        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 435
 436        memset(ec, 0, sizeof(struct ethtool_coalesce));
 437
 438        ec->rx_coalesce_usecs = pdata->rx_usecs;
 439        ec->rx_max_coalesced_frames = pdata->rx_frames;
 440
 441        ec->tx_max_coalesced_frames = pdata->tx_frames;
 442
 443        return 0;
 444}
 445
 446static int xgbe_set_coalesce(struct net_device *netdev,
 447                             struct ethtool_coalesce *ec)
 448{
 449        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 450        struct xgbe_hw_if *hw_if = &pdata->hw_if;
 451        unsigned int rx_frames, rx_riwt, rx_usecs;
 452        unsigned int tx_frames;
 453
 454        /* Check for not supported parameters  */
 455        if ((ec->rx_coalesce_usecs_irq) ||
 456            (ec->rx_max_coalesced_frames_irq) ||
 457            (ec->tx_coalesce_usecs) ||
 458            (ec->tx_coalesce_usecs_irq) ||
 459            (ec->tx_max_coalesced_frames_irq) ||
 460            (ec->stats_block_coalesce_usecs) ||
 461            (ec->use_adaptive_rx_coalesce) ||
 462            (ec->use_adaptive_tx_coalesce) ||
 463            (ec->pkt_rate_low) ||
 464            (ec->rx_coalesce_usecs_low) ||
 465            (ec->rx_max_coalesced_frames_low) ||
 466            (ec->tx_coalesce_usecs_low) ||
 467            (ec->tx_max_coalesced_frames_low) ||
 468            (ec->pkt_rate_high) ||
 469            (ec->rx_coalesce_usecs_high) ||
 470            (ec->rx_max_coalesced_frames_high) ||
 471            (ec->tx_coalesce_usecs_high) ||
 472            (ec->tx_max_coalesced_frames_high) ||
 473            (ec->rate_sample_interval)) {
 474                netdev_err(netdev, "unsupported coalescing parameter\n");
 475                return -EOPNOTSUPP;
 476        }
 477
 478        rx_riwt = hw_if->usec_to_riwt(pdata, ec->rx_coalesce_usecs);
 479        rx_usecs = ec->rx_coalesce_usecs;
 480        rx_frames = ec->rx_max_coalesced_frames;
 481
 482        /* Use smallest possible value if conversion resulted in zero */
 483        if (rx_usecs && !rx_riwt)
 484                rx_riwt = 1;
 485
 486        /* Check the bounds of values for Rx */
 487        if (rx_riwt > XGMAC_MAX_DMA_RIWT) {
 488                netdev_err(netdev, "rx-usec is limited to %d usecs\n",
 489                           hw_if->riwt_to_usec(pdata, XGMAC_MAX_DMA_RIWT));
 490                return -EINVAL;
 491        }
 492        if (rx_frames > pdata->rx_desc_count) {
 493                netdev_err(netdev, "rx-frames is limited to %d frames\n",
 494                           pdata->rx_desc_count);
 495                return -EINVAL;
 496        }
 497
 498        tx_frames = ec->tx_max_coalesced_frames;
 499
 500        /* Check the bounds of values for Tx */
 501        if (tx_frames > pdata->tx_desc_count) {
 502                netdev_err(netdev, "tx-frames is limited to %d frames\n",
 503                           pdata->tx_desc_count);
 504                return -EINVAL;
 505        }
 506
 507        pdata->rx_riwt = rx_riwt;
 508        pdata->rx_usecs = rx_usecs;
 509        pdata->rx_frames = rx_frames;
 510        hw_if->config_rx_coalesce(pdata);
 511
 512        pdata->tx_frames = tx_frames;
 513        hw_if->config_tx_coalesce(pdata);
 514
 515        return 0;
 516}
 517
 518static int xgbe_get_rxnfc(struct net_device *netdev,
 519                          struct ethtool_rxnfc *rxnfc, u32 *rule_locs)
 520{
 521        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 522
 523        switch (rxnfc->cmd) {
 524        case ETHTOOL_GRXRINGS:
 525                rxnfc->data = pdata->rx_ring_count;
 526                break;
 527        default:
 528                return -EOPNOTSUPP;
 529        }
 530
 531        return 0;
 532}
 533
 534static u32 xgbe_get_rxfh_key_size(struct net_device *netdev)
 535{
 536        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 537
 538        return sizeof(pdata->rss_key);
 539}
 540
 541static u32 xgbe_get_rxfh_indir_size(struct net_device *netdev)
 542{
 543        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 544
 545        return ARRAY_SIZE(pdata->rss_table);
 546}
 547
 548static int xgbe_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
 549                         u8 *hfunc)
 550{
 551        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 552        unsigned int i;
 553
 554        if (indir) {
 555                for (i = 0; i < ARRAY_SIZE(pdata->rss_table); i++)
 556                        indir[i] = XGMAC_GET_BITS(pdata->rss_table[i],
 557                                                  MAC_RSSDR, DMCH);
 558        }
 559
 560        if (key)
 561                memcpy(key, pdata->rss_key, sizeof(pdata->rss_key));
 562
 563        if (hfunc)
 564                *hfunc = ETH_RSS_HASH_TOP;
 565
 566        return 0;
 567}
 568
 569static int xgbe_set_rxfh(struct net_device *netdev, const u32 *indir,
 570                         const u8 *key, const u8 hfunc)
 571{
 572        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 573        struct xgbe_hw_if *hw_if = &pdata->hw_if;
 574        unsigned int ret;
 575
 576        if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) {
 577                netdev_err(netdev, "unsupported hash function\n");
 578                return -EOPNOTSUPP;
 579        }
 580
 581        if (indir) {
 582                ret = hw_if->set_rss_lookup_table(pdata, indir);
 583                if (ret)
 584                        return ret;
 585        }
 586
 587        if (key) {
 588                ret = hw_if->set_rss_hash_key(pdata, key);
 589                if (ret)
 590                        return ret;
 591        }
 592
 593        return 0;
 594}
 595
 596static int xgbe_get_ts_info(struct net_device *netdev,
 597                            struct ethtool_ts_info *ts_info)
 598{
 599        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 600
 601        ts_info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
 602                                   SOF_TIMESTAMPING_RX_SOFTWARE |
 603                                   SOF_TIMESTAMPING_SOFTWARE |
 604                                   SOF_TIMESTAMPING_TX_HARDWARE |
 605                                   SOF_TIMESTAMPING_RX_HARDWARE |
 606                                   SOF_TIMESTAMPING_RAW_HARDWARE;
 607
 608        if (pdata->ptp_clock)
 609                ts_info->phc_index = ptp_clock_index(pdata->ptp_clock);
 610        else
 611                ts_info->phc_index = -1;
 612
 613        ts_info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON);
 614        ts_info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) |
 615                              (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
 616                              (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
 617                              (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
 618                              (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
 619                              (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
 620                              (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) |
 621                              (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) |
 622                              (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) |
 623                              (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
 624                              (1 << HWTSTAMP_FILTER_ALL);
 625
 626        return 0;
 627}
 628
 629static int xgbe_get_module_info(struct net_device *netdev,
 630                                struct ethtool_modinfo *modinfo)
 631{
 632        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 633
 634        return pdata->phy_if.module_info(pdata, modinfo);
 635}
 636
 637static int xgbe_get_module_eeprom(struct net_device *netdev,
 638                                  struct ethtool_eeprom *eeprom, u8 *data)
 639{
 640        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 641
 642        return pdata->phy_if.module_eeprom(pdata, eeprom, data);
 643}
 644
 645static void xgbe_get_ringparam(struct net_device *netdev,
 646                               struct ethtool_ringparam *ringparam)
 647{
 648        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 649
 650        ringparam->rx_max_pending = XGBE_RX_DESC_CNT_MAX;
 651        ringparam->tx_max_pending = XGBE_TX_DESC_CNT_MAX;
 652        ringparam->rx_pending = pdata->rx_desc_count;
 653        ringparam->tx_pending = pdata->tx_desc_count;
 654}
 655
 656static int xgbe_set_ringparam(struct net_device *netdev,
 657                              struct ethtool_ringparam *ringparam)
 658{
 659        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 660        unsigned int rx, tx;
 661
 662        if (ringparam->rx_mini_pending || ringparam->rx_jumbo_pending) {
 663                netdev_err(netdev, "unsupported ring parameter\n");
 664                return -EINVAL;
 665        }
 666
 667        if ((ringparam->rx_pending < XGBE_RX_DESC_CNT_MIN) ||
 668            (ringparam->rx_pending > XGBE_RX_DESC_CNT_MAX)) {
 669                netdev_err(netdev,
 670                           "rx ring parameter must be between %u and %u\n",
 671                           XGBE_RX_DESC_CNT_MIN, XGBE_RX_DESC_CNT_MAX);
 672                return -EINVAL;
 673        }
 674
 675        if ((ringparam->tx_pending < XGBE_TX_DESC_CNT_MIN) ||
 676            (ringparam->tx_pending > XGBE_TX_DESC_CNT_MAX)) {
 677                netdev_err(netdev,
 678                           "tx ring parameter must be between %u and %u\n",
 679                           XGBE_TX_DESC_CNT_MIN, XGBE_TX_DESC_CNT_MAX);
 680                return -EINVAL;
 681        }
 682
 683        rx = __rounddown_pow_of_two(ringparam->rx_pending);
 684        if (rx != ringparam->rx_pending)
 685                netdev_notice(netdev,
 686                              "rx ring parameter rounded to power of two: %u\n",
 687                              rx);
 688
 689        tx = __rounddown_pow_of_two(ringparam->tx_pending);
 690        if (tx != ringparam->tx_pending)
 691                netdev_notice(netdev,
 692                              "tx ring parameter rounded to power of two: %u\n",
 693                              tx);
 694
 695        if ((rx == pdata->rx_desc_count) &&
 696            (tx == pdata->tx_desc_count))
 697                goto out;
 698
 699        pdata->rx_desc_count = rx;
 700        pdata->tx_desc_count = tx;
 701
 702        xgbe_restart_dev(pdata);
 703
 704out:
 705        return 0;
 706}
 707
 708static void xgbe_get_channels(struct net_device *netdev,
 709                              struct ethtool_channels *channels)
 710{
 711        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 712        unsigned int rx, tx, combined;
 713
 714        /* Calculate maximums allowed:
 715         *   - Take into account the number of available IRQs
 716         *   - Do not take into account the number of online CPUs so that
 717         *     the user can over-subscribe if desired
 718         *   - Tx is additionally limited by the number of hardware queues
 719         */
 720        rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count);
 721        rx = min(rx, pdata->channel_irq_count);
 722        tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count);
 723        tx = min(tx, pdata->channel_irq_count);
 724        tx = min(tx, pdata->tx_max_q_count);
 725
 726        combined = min(rx, tx);
 727
 728        channels->max_combined = combined;
 729        channels->max_rx = rx ? rx - 1 : 0;
 730        channels->max_tx = tx ? tx - 1 : 0;
 731
 732        /* Get current settings based on device state */
 733        rx = pdata->new_rx_ring_count ? : pdata->rx_ring_count;
 734        tx = pdata->new_tx_ring_count ? : pdata->tx_ring_count;
 735
 736        combined = min(rx, tx);
 737        rx -= combined;
 738        tx -= combined;
 739
 740        channels->combined_count = combined;
 741        channels->rx_count = rx;
 742        channels->tx_count = tx;
 743}
 744
 745static void xgbe_print_set_channels_input(struct net_device *netdev,
 746                                          struct ethtool_channels *channels)
 747{
 748        netdev_err(netdev, "channel inputs: combined=%u, rx-only=%u, tx-only=%u\n",
 749                   channels->combined_count, channels->rx_count,
 750                   channels->tx_count);
 751}
 752
 753static int xgbe_set_channels(struct net_device *netdev,
 754                             struct ethtool_channels *channels)
 755{
 756        struct xgbe_prv_data *pdata = netdev_priv(netdev);
 757        unsigned int rx, rx_curr, tx, tx_curr, combined;
 758
 759        /* Calculate maximums allowed:
 760         *   - Take into account the number of available IRQs
 761         *   - Do not take into account the number of online CPUs so that
 762         *     the user can over-subscribe if desired
 763         *   - Tx is additionally limited by the number of hardware queues
 764         */
 765        rx = min(pdata->hw_feat.rx_ch_cnt, pdata->rx_max_channel_count);
 766        rx = min(rx, pdata->channel_irq_count);
 767        tx = min(pdata->hw_feat.tx_ch_cnt, pdata->tx_max_channel_count);
 768        tx = min(tx, pdata->tx_max_q_count);
 769        tx = min(tx, pdata->channel_irq_count);
 770
 771        combined = min(rx, tx);
 772
 773        /* Should not be setting other count */
 774        if (channels->other_count) {
 775                netdev_err(netdev,
 776                           "other channel count must be zero\n");
 777                return -EINVAL;
 778        }
 779
 780        /* Require at least one Combined (Rx and Tx) channel */
 781        if (!channels->combined_count) {
 782                netdev_err(netdev,
 783                           "at least one combined Rx/Tx channel is required\n");
 784                xgbe_print_set_channels_input(netdev, channels);
 785                return -EINVAL;
 786        }
 787
 788        /* Check combined channels */
 789        if (channels->combined_count > combined) {
 790                netdev_err(netdev,
 791                           "combined channel count cannot exceed %u\n",
 792                           combined);
 793                xgbe_print_set_channels_input(netdev, channels);
 794                return -EINVAL;
 795        }
 796
 797        /* Can have some Rx-only or Tx-only channels, but not both */
 798        if (channels->rx_count && channels->tx_count) {
 799                netdev_err(netdev,
 800                           "cannot specify both Rx-only and Tx-only channels\n");
 801                xgbe_print_set_channels_input(netdev, channels);
 802                return -EINVAL;
 803        }
 804
 805        /* Check that we don't exceed the maximum number of channels */
 806        if ((channels->combined_count + channels->rx_count) > rx) {
 807                netdev_err(netdev,
 808                           "total Rx channels (%u) requested exceeds maximum available (%u)\n",
 809                           channels->combined_count + channels->rx_count, rx);
 810                xgbe_print_set_channels_input(netdev, channels);
 811                return -EINVAL;
 812        }
 813
 814        if ((channels->combined_count + channels->tx_count) > tx) {
 815                netdev_err(netdev,
 816                           "total Tx channels (%u) requested exceeds maximum available (%u)\n",
 817                           channels->combined_count + channels->tx_count, tx);
 818                xgbe_print_set_channels_input(netdev, channels);
 819                return -EINVAL;
 820        }
 821
 822        rx = channels->combined_count + channels->rx_count;
 823        tx = channels->combined_count + channels->tx_count;
 824
 825        rx_curr = pdata->new_rx_ring_count ? : pdata->rx_ring_count;
 826        tx_curr = pdata->new_tx_ring_count ? : pdata->tx_ring_count;
 827
 828        if ((rx == rx_curr) && (tx == tx_curr))
 829                goto out;
 830
 831        pdata->new_rx_ring_count = rx;
 832        pdata->new_tx_ring_count = tx;
 833
 834        xgbe_full_restart_dev(pdata);
 835
 836out:
 837        return 0;
 838}
 839
 840static const struct ethtool_ops xgbe_ethtool_ops = {
 841        .get_drvinfo = xgbe_get_drvinfo,
 842        .get_msglevel = xgbe_get_msglevel,
 843        .set_msglevel = xgbe_set_msglevel,
 844        .get_link = ethtool_op_get_link,
 845        .get_coalesce = xgbe_get_coalesce,
 846        .set_coalesce = xgbe_set_coalesce,
 847        .get_pauseparam = xgbe_get_pauseparam,
 848        .set_pauseparam = xgbe_set_pauseparam,
 849        .get_strings = xgbe_get_strings,
 850        .get_ethtool_stats = xgbe_get_ethtool_stats,
 851        .get_sset_count = xgbe_get_sset_count,
 852        .get_rxnfc = xgbe_get_rxnfc,
 853        .get_rxfh_key_size = xgbe_get_rxfh_key_size,
 854        .get_rxfh_indir_size = xgbe_get_rxfh_indir_size,
 855        .get_rxfh = xgbe_get_rxfh,
 856        .set_rxfh = xgbe_set_rxfh,
 857        .get_ts_info = xgbe_get_ts_info,
 858        .get_link_ksettings = xgbe_get_link_ksettings,
 859        .set_link_ksettings = xgbe_set_link_ksettings,
 860        .get_module_info = xgbe_get_module_info,
 861        .get_module_eeprom = xgbe_get_module_eeprom,
 862        .get_ringparam = xgbe_get_ringparam,
 863        .set_ringparam = xgbe_set_ringparam,
 864        .get_channels = xgbe_get_channels,
 865        .set_channels = xgbe_set_channels,
 866};
 867
 868const struct ethtool_ops *xgbe_get_ethtool_ops(void)
 869{
 870        return &xgbe_ethtool_ops;
 871}
 872