drivers/net/ethernet/mellanox/mlx4/en_ethtool.c

   1 /*
   2  * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  *
  32  */
  33
  34 #include <linux/kernel.h>
  35 #include <linux/ethtool.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/mlx4/driver.h>
  38 #include <linux/in.h>
  39 #include <net/ip.h>
  40
  41 #include "mlx4_en.h"
  42 #include "en_port.h"
  43
  44 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
  45 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
  46 #define EN_ETHTOOL_WORD_MASK  cpu_to_be32(0xffffffff)
  47
  48 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
  49 {
  50         int i;
  51         int err = 0;
  52
  53         for (i = 0; i < priv->tx_ring_num; i++) {
  54                 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
  55                 priv->tx_cq[i]->moder_time = priv->tx_usecs;
  56                 if (priv->port_up) {
  57                         err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
  58                         if (err)
  59                                 return err;
  60                 }
  61         }
  62
  63         if (priv->adaptive_rx_coal)
  64                 return 0;
  65
  66         for (i = 0; i < priv->rx_ring_num; i++) {
  67                 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
  68                 priv->rx_cq[i]->moder_time = priv->rx_usecs;
  69                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
  70                 if (priv->port_up) {
  71                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
  72                         if (err)
  73                                 return err;
  74                 }
  75         }
  76
  77         return err;
  78 }
  79
  80 static void
  81 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  82 {
  83         struct mlx4_en_priv *priv = netdev_priv(dev);
  84         struct mlx4_en_dev *mdev = priv->mdev;
  85
  86         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  87         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  88                 sizeof(drvinfo->version));
  89         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  90                 "%d.%d.%d",
  91                 (u16) (mdev->dev->caps.fw_ver >> 32),
  92                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  93                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  94         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
  95                 sizeof(drvinfo->bus_info));
  96         drvinfo->n_stats = 0;
  97         drvinfo->regdump_len = 0;
  98         drvinfo->eedump_len = 0;
  99 }
 100
 101 static const char main_strings[][ETH_GSTRING_LEN] = {
 102         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 103         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 104         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 105         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 106         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 107         "tx_heartbeat_errors", "tx_window_errors",
 108
 109         /* port statistics */
 110         "tso_packets",
 111         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 112         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
 113
 114         /* packet statistics */
 115         "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
 116         "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
 117         "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
 118         "tx_prio_6", "tx_prio_7",
 119 };
 120 #define NUM_MAIN_STATS  21
 121 #define NUM_ALL_STATS   (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
 122
 123 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 124         "Interrupt Test",
 125         "Link Test",
 126         "Speed Test",
 127         "Register Test",
 128         "Loopback Test",
 129 };
 130
 131 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 132 {
 133         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 134 }
 135
 136 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 137 {
 138         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 139 }
 140
 141 static void mlx4_en_get_wol(struct net_device *netdev,
 142                             struct ethtool_wolinfo *wol)
 143 {
 144         struct mlx4_en_priv *priv = netdev_priv(netdev);
 145         int err = 0;
 146         u64 config = 0;
 147         u64 mask;
 148
 149         if ((priv->port < 1) || (priv->port > 2)) {
 150                 en_err(priv, "Failed to get WoL information\n");
 151                 return;
 152         }
 153
 154         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 155                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 156
 157         if (!(priv->mdev->dev->caps.flags & mask)) {
 158                 wol->supported = 0;
 159                 wol->wolopts = 0;
 160                 return;
 161         }
 162
 163         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 164         if (err) {
 165                 en_err(priv, "Failed to get WoL information\n");
 166                 return;
 167         }
 168
 169         if (config & MLX4_EN_WOL_MAGIC)
 170                 wol->supported = WAKE_MAGIC;
 171         else
 172                 wol->supported = 0;
 173
 174         if (config & MLX4_EN_WOL_ENABLED)
 175                 wol->wolopts = WAKE_MAGIC;
 176         else
 177                 wol->wolopts = 0;
 178 }
 179
 180 static int mlx4_en_set_wol(struct net_device *netdev,
 181                             struct ethtool_wolinfo *wol)
 182 {
 183         struct mlx4_en_priv *priv = netdev_priv(netdev);
 184         u64 config = 0;
 185         int err = 0;
 186         u64 mask;
 187
 188         if ((priv->port < 1) || (priv->port > 2))
 189                 return -EOPNOTSUPP;
 190
 191         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 192                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 193
 194         if (!(priv->mdev->dev->caps.flags & mask))
 195                 return -EOPNOTSUPP;
 196
 197         if (wol->supported & ~WAKE_MAGIC)
 198                 return -EINVAL;
 199
 200         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 201         if (err) {
 202                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 203                 return err;
 204         }
 205
 206         if (wol->wolopts & WAKE_MAGIC) {
 207                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 208                                 MLX4_EN_WOL_MAGIC;
 209         } else {
 210                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 211                 config |= MLX4_EN_WOL_DO_MODIFY;
 212         }
 213
 214         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 215         if (err)
 216                 en_err(priv, "Failed to set WoL information\n");
 217
 218         return err;
 219 }
 220
 221 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 222 {
 223         struct mlx4_en_priv *priv = netdev_priv(dev);
 224         int bit_count = hweight64(priv->stats_bitmap);
 225
 226         switch (sset) {
 227         case ETH_SS_STATS:
 228                 return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
 229                         (priv->tx_ring_num * 2) +
 230 #ifdef CONFIG_NET_RX_BUSY_POLL
 231                         (priv->rx_ring_num * 5);
 232 #else
 233                         (priv->rx_ring_num * 2);
 234 #endif
 235         case ETH_SS_TEST:
 236                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 237                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 238         default:
 239                 return -EOPNOTSUPP;
 240         }
 241 }
 242
 243 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 244                 struct ethtool_stats *stats, uint64_t *data)
 245 {
 246         struct mlx4_en_priv *priv = netdev_priv(dev);
 247         int index = 0;
 248         int i, j = 0;
 249
 250         spin_lock_bh(&priv->stats_lock);
 251
 252         if (!(priv->stats_bitmap)) {
 253                 for (i = 0; i < NUM_MAIN_STATS; i++)
 254                         data[index++] =
 255                                 ((unsigned long *) &priv->stats)[i];
 256                 for (i = 0; i < NUM_PORT_STATS; i++)
 257                         data[index++] =
 258                                 ((unsigned long *) &priv->port_stats)[i];
 259                 for (i = 0; i < NUM_PKT_STATS; i++)
 260                         data[index++] =
 261                                 ((unsigned long *) &priv->pkstats)[i];
 262         } else {
 263                 for (i = 0; i < NUM_MAIN_STATS; i++) {
 264                         if ((priv->stats_bitmap >> j) & 1)
 265                                 data[index++] =
 266                                 ((unsigned long *) &priv->stats)[i];
 267                         j++;
 268                 }
 269                 for (i = 0; i < NUM_PORT_STATS; i++) {
 270                         if ((priv->stats_bitmap >> j) & 1)
 271                                 data[index++] =
 272                                 ((unsigned long *) &priv->port_stats)[i];
 273                         j++;
 274                 }
 275         }
 276         for (i = 0; i < priv->tx_ring_num; i++) {
 277                 data[index++] = priv->tx_ring[i]->packets;
 278                 data[index++] = priv->tx_ring[i]->bytes;
 279         }
 280         for (i = 0; i < priv->rx_ring_num; i++) {
 281                 data[index++] = priv->rx_ring[i]->packets;
 282                 data[index++] = priv->rx_ring[i]->bytes;
 283 #ifdef CONFIG_NET_RX_BUSY_POLL
 284                 data[index++] = priv->rx_ring[i]->yields;
 285                 data[index++] = priv->rx_ring[i]->misses;
 286                 data[index++] = priv->rx_ring[i]->cleaned;
 287 #endif
 288         }
 289         spin_unlock_bh(&priv->stats_lock);
 290
 291 }
 292
 293 static void mlx4_en_self_test(struct net_device *dev,
 294                               struct ethtool_test *etest, u64 *buf)
 295 {
 296         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 297 }
 298
 299 static void mlx4_en_get_strings(struct net_device *dev,
 300                                 uint32_t stringset, uint8_t *data)
 301 {
 302         struct mlx4_en_priv *priv = netdev_priv(dev);
 303         int index = 0;
 304         int i;
 305
 306         switch (stringset) {
 307         case ETH_SS_TEST:
 308                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 309                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 310                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 311                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 312                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 313                 break;
 314
 315         case ETH_SS_STATS:
 316                 /* Add main counters */
 317                 if (!priv->stats_bitmap) {
 318                         for (i = 0; i < NUM_MAIN_STATS; i++)
 319                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 320                                         main_strings[i]);
 321                         for (i = 0; i < NUM_PORT_STATS; i++)
 322                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 323                                         main_strings[i +
 324                                         NUM_MAIN_STATS]);
 325                         for (i = 0; i < NUM_PKT_STATS; i++)
 326                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 327                                         main_strings[i +
 328                                         NUM_MAIN_STATS +
 329                                         NUM_PORT_STATS]);
 330                 } else
 331                         for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) {
 332                                 if ((priv->stats_bitmap >> i) & 1) {
 333                                         strcpy(data +
 334                                                (index++) * ETH_GSTRING_LEN,
 335                                                main_strings[i]);
 336                                 }
 337                                 if (!(priv->stats_bitmap >> i))
 338                                         break;
 339                         }
 340                 for (i = 0; i < priv->tx_ring_num; i++) {
 341                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 342                                 "tx%d_packets", i);
 343                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 344                                 "tx%d_bytes", i);
 345                 }
 346                 for (i = 0; i < priv->rx_ring_num; i++) {
 347                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 348                                 "rx%d_packets", i);
 349                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 350                                 "rx%d_bytes", i);
 351 #ifdef CONFIG_NET_RX_BUSY_POLL
 352                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 353                                 "rx%d_napi_yield", i);
 354                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 355                                 "rx%d_misses", i);
 356                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 357                                 "rx%d_cleaned", i);
 358 #endif
 359                 }
 360                 break;
 361         }
 362 }
 363
 364 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 365 {
 366         struct mlx4_en_priv *priv = netdev_priv(dev);
 367         int trans_type;
 368
 369         cmd->autoneg = AUTONEG_DISABLE;
 370         cmd->supported = SUPPORTED_10000baseT_Full;
 371         cmd->advertising = ADVERTISED_10000baseT_Full;
 372
 373         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 374                 return -ENOMEM;
 375
 376         trans_type = priv->port_state.transciver;
 377         if (netif_carrier_ok(dev)) {
 378                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 379                 cmd->duplex = DUPLEX_FULL;
 380         } else {
 381                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 382                 cmd->duplex = DUPLEX_UNKNOWN;
 383         }
 384
 385         if (trans_type > 0 && trans_type <= 0xC) {
 386                 cmd->port = PORT_FIBRE;
 387                 cmd->transceiver = XCVR_EXTERNAL;
 388                 cmd->supported |= SUPPORTED_FIBRE;
 389                 cmd->advertising |= ADVERTISED_FIBRE;
 390         } else if (trans_type == 0x80 || trans_type == 0) {
 391                 cmd->port = PORT_TP;
 392                 cmd->transceiver = XCVR_INTERNAL;
 393                 cmd->supported |= SUPPORTED_TP;
 394                 cmd->advertising |= ADVERTISED_TP;
 395         } else  {
 396                 cmd->port = -1;
 397                 cmd->transceiver = -1;
 398         }
 399         return 0;
 400 }
 401
 402 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 403 {
 404         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 405             (ethtool_cmd_speed(cmd) != SPEED_10000) ||
 406             (cmd->duplex != DUPLEX_FULL))
 407                 return -EINVAL;
 408
 409         /* Nothing to change */
 410         return 0;
 411 }
 412
 413 static int mlx4_en_get_coalesce(struct net_device *dev,
 414                               struct ethtool_coalesce *coal)
 415 {
 416         struct mlx4_en_priv *priv = netdev_priv(dev);
 417
 418         coal->tx_coalesce_usecs = priv->tx_usecs;
 419         coal->tx_max_coalesced_frames = priv->tx_frames;
 420         coal->rx_coalesce_usecs = priv->rx_usecs;
 421         coal->rx_max_coalesced_frames = priv->rx_frames;
 422
 423         coal->pkt_rate_low = priv->pkt_rate_low;
 424         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 425         coal->pkt_rate_high = priv->pkt_rate_high;
 426         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 427         coal->rate_sample_interval = priv->sample_interval;
 428         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 429         return 0;
 430 }
 431
 432 static int mlx4_en_set_coalesce(struct net_device *dev,
 433                               struct ethtool_coalesce *coal)
 434 {
 435         struct mlx4_en_priv *priv = netdev_priv(dev);
 436
 437         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 438                            MLX4_EN_AUTO_CONF) ?
 439                                 MLX4_EN_RX_COAL_TARGET :
 440                                 coal->rx_max_coalesced_frames;
 441         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 442                           MLX4_EN_AUTO_CONF) ?
 443                                 MLX4_EN_RX_COAL_TIME :
 444                                 coal->rx_coalesce_usecs;
 445
 446         /* Setting TX coalescing parameters */
 447         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 448             coal->tx_max_coalesced_frames != priv->tx_frames) {
 449                 priv->tx_usecs = coal->tx_coalesce_usecs;
 450                 priv->tx_frames = coal->tx_max_coalesced_frames;
 451         }
 452
 453         /* Set adaptive coalescing params */
 454         priv->pkt_rate_low = coal->pkt_rate_low;
 455         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 456         priv->pkt_rate_high = coal->pkt_rate_high;
 457         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 458         priv->sample_interval = coal->rate_sample_interval;
 459         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 460
 461         return mlx4_en_moderation_update(priv);
 462 }
 463
 464 static int mlx4_en_set_pauseparam(struct net_device *dev,
 465                                 struct ethtool_pauseparam *pause)
 466 {
 467         struct mlx4_en_priv *priv = netdev_priv(dev);
 468         struct mlx4_en_dev *mdev = priv->mdev;
 469         int err;
 470
 471         priv->prof->tx_pause = pause->tx_pause != 0;
 472         priv->prof->rx_pause = pause->rx_pause != 0;
 473         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 474                                     priv->rx_skb_size + ETH_FCS_LEN,
 475                                     priv->prof->tx_pause,
 476                                     priv->prof->tx_ppp,
 477                                     priv->prof->rx_pause,
 478                                     priv->prof->rx_ppp);
 479         if (err)
 480                 en_err(priv, "Failed setting pause params\n");
 481
 482         return err;
 483 }
 484
 485 static void mlx4_en_get_pauseparam(struct net_device *dev,
 486                                  struct ethtool_pauseparam *pause)
 487 {
 488         struct mlx4_en_priv *priv = netdev_priv(dev);
 489
 490         pause->tx_pause = priv->prof->tx_pause;
 491         pause->rx_pause = priv->prof->rx_pause;
 492 }
 493
 494 static int mlx4_en_set_ringparam(struct net_device *dev,
 495                                  struct ethtool_ringparam *param)
 496 {
 497         struct mlx4_en_priv *priv = netdev_priv(dev);
 498         struct mlx4_en_dev *mdev = priv->mdev;
 499         u32 rx_size, tx_size;
 500         int port_up = 0;
 501         int err = 0;
 502
 503         if (param->rx_jumbo_pending || param->rx_mini_pending)
 504                 return -EINVAL;
 505
 506         rx_size = roundup_pow_of_two(param->rx_pending);
 507         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 508         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 509         tx_size = roundup_pow_of_two(param->tx_pending);
 510         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 511         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 512
 513         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
 514                                         priv->rx_ring[0]->size) &&
 515             tx_size == priv->tx_ring[0]->size)
 516                 return 0;
 517
 518         mutex_lock(&mdev->state_lock);
 519         if (priv->port_up) {
 520                 port_up = 1;
 521                 mlx4_en_stop_port(dev, 1);
 522         }
 523
 524         mlx4_en_free_resources(priv);
 525
 526         priv->prof->tx_ring_size = tx_size;
 527         priv->prof->rx_ring_size = rx_size;
 528
 529         err = mlx4_en_alloc_resources(priv);
 530         if (err) {
 531                 en_err(priv, "Failed reallocating port resources\n");
 532                 goto out;
 533         }
 534         if (port_up) {
 535                 err = mlx4_en_start_port(dev);
 536                 if (err)
 537                         en_err(priv, "Failed starting port\n");
 538         }
 539
 540         err = mlx4_en_moderation_update(priv);
 541
 542 out:
 543         mutex_unlock(&mdev->state_lock);
 544         return err;
 545 }
 546
 547 static void mlx4_en_get_ringparam(struct net_device *dev,
 548                                   struct ethtool_ringparam *param)
 549 {
 550         struct mlx4_en_priv *priv = netdev_priv(dev);
 551
 552         memset(param, 0, sizeof(*param));
 553         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 554         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 555         param->rx_pending = priv->port_up ?
 556                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
 557         param->tx_pending = priv->tx_ring[0]->size;
 558 }
 559
 560 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
 561 {
 562         struct mlx4_en_priv *priv = netdev_priv(dev);
 563
 564         return priv->rx_ring_num;
 565 }
 566
 567 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key)
 568 {
 569         struct mlx4_en_priv *priv = netdev_priv(dev);
 570         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
 571         int rss_rings;
 572         size_t n = priv->rx_ring_num;
 573         int err = 0;
 574
 575         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
 576
 577         while (n--) {
 578                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
 579                         rss_map->base_qpn;
 580         }
 581
 582         return err;
 583 }
 584
 585 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
 586                             const u8 *key)
 587 {
 588         struct mlx4_en_priv *priv = netdev_priv(dev);
 589         struct mlx4_en_dev *mdev = priv->mdev;
 590         int port_up = 0;
 591         int err = 0;
 592         int i;
 593         int rss_rings = 0;
 594
 595         /* Calculate RSS table size and make sure flows are spread evenly
 596          * between rings
 597          */
 598         for (i = 0; i < priv->rx_ring_num; i++) {
 599                 if (i > 0 && !ring_index[i] && !rss_rings)
 600                         rss_rings = i;
 601
 602                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
 603                         return -EINVAL;
 604         }
 605
 606         if (!rss_rings)
 607                 rss_rings = priv->rx_ring_num;
 608
 609         /* RSS table size must be an order of 2 */
 610         if (!is_power_of_2(rss_rings))
 611                 return -EINVAL;
 612
 613         mutex_lock(&mdev->state_lock);
 614         if (priv->port_up) {
 615                 port_up = 1;
 616                 mlx4_en_stop_port(dev, 1);
 617         }
 618
 619         priv->prof->rss_rings = rss_rings;
 620
 621         if (port_up) {
 622                 err = mlx4_en_start_port(dev);
 623                 if (err)
 624                         en_err(priv, "Failed starting port\n");
 625         }
 626
 627         mutex_unlock(&mdev->state_lock);
 628         return err;
 629 }
 630
 631 #define all_zeros_or_all_ones(field)            \
 632         ((field) == 0 || (field) == (__force typeof(field))-1)
 633
 634 static int mlx4_en_validate_flow(struct net_device *dev,
 635                                  struct ethtool_rxnfc *cmd)
 636 {
 637         struct ethtool_usrip4_spec *l3_mask;
 638         struct ethtool_tcpip4_spec *l4_mask;
 639         struct ethhdr *eth_mask;
 640
 641         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
 642                 return -EINVAL;
 643
 644         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
 645                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
 646                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
 647                         return -EINVAL;
 648         }
 649
 650         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 651         case TCP_V4_FLOW:
 652         case UDP_V4_FLOW:
 653                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
 654                         return -EINVAL;
 655                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
 656                 /* don't allow mask which isn't all 0 or 1 */
 657                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
 658                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
 659                     !all_zeros_or_all_ones(l4_mask->psrc) ||
 660                     !all_zeros_or_all_ones(l4_mask->pdst))
 661                         return -EINVAL;
 662                 break;
 663         case IP_USER_FLOW:
 664                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
 665                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
 666                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
 667                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
 668                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
 669                     !all_zeros_or_all_ones(l3_mask->ip4dst))
 670                         return -EINVAL;
 671                 break;
 672         case ETHER_FLOW:
 673                 eth_mask = &cmd->fs.m_u.ether_spec;
 674                 /* source mac mask must not be set */
 675                 if (!is_zero_ether_addr(eth_mask->h_source))
 676                         return -EINVAL;
 677
 678                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
 679                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
 680                         return -EINVAL;
 681
 682                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
 683                         return -EINVAL;
 684                 break;
 685         default:
 686                 return -EINVAL;
 687         }
 688
 689         if ((cmd->fs.flow_type & FLOW_EXT)) {
 690                 if (cmd->fs.m_ext.vlan_etype ||
 691                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
 692                       0 ||
 693                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
 694                       cpu_to_be16(VLAN_VID_MASK)))
 695                         return -EINVAL;
 696
 697                 if (cmd->fs.m_ext.vlan_tci) {
 698                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
 699                                 return -EINVAL;
 700
 701                 }
 702         }
 703
 704         return 0;
 705 }
 706
 707 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
 708                                         struct list_head *rule_list_h,
 709                                         struct mlx4_spec_list *spec_l2,
 710                                         unsigned char *mac)
 711 {
 712         int err = 0;
 713         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
 714
 715         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
 716         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
 717         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
 718
 719         if ((cmd->fs.flow_type & FLOW_EXT) &&
 720             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
 721                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
 722                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
 723         }
 724
 725         list_add_tail(&spec_l2->list, rule_list_h);
 726
 727         return err;
 728 }
 729
 730 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
 731                                                 struct ethtool_rxnfc *cmd,
 732                                                 struct list_head *rule_list_h,
 733                                                 struct mlx4_spec_list *spec_l2,
 734                                                 __be32 ipv4_dst)
 735 {
 736 #ifdef CONFIG_INET
 737         unsigned char mac[ETH_ALEN];
 738
 739         if (!ipv4_is_multicast(ipv4_dst)) {
 740                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
 741                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
 742                 else
 743                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
 744         } else {
 745                 ip_eth_mc_map(ipv4_dst, mac);
 746         }
 747
 748         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
 749 #else
 750         return -EINVAL;
 751 #endif
 752 }
 753
 754 static int add_ip_rule(struct mlx4_en_priv *priv,
 755                        struct ethtool_rxnfc *cmd,
 756                        struct list_head *list_h)
 757 {
 758         int err;
 759         struct mlx4_spec_list *spec_l2 = NULL;
 760         struct mlx4_spec_list *spec_l3 = NULL;
 761         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
 762
 763         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 764         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 765         if (!spec_l2 || !spec_l3) {
 766                 err = -ENOMEM;
 767                 goto free_spec;
 768         }
 769
 770         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
 771                                                    cmd->fs.h_u.
 772                                                    usr_ip4_spec.ip4dst);
 773         if (err)
 774                 goto free_spec;
 775         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 776         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
 777         if (l3_mask->ip4src)
 778                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
 779         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
 780         if (l3_mask->ip4dst)
 781                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
 782         list_add_tail(&spec_l3->list, list_h);
 783
 784         return 0;
 785
 786 free_spec:
 787         kfree(spec_l2);
 788         kfree(spec_l3);
 789         return err;
 790 }
 791
 792 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
 793                              struct ethtool_rxnfc *cmd,
 794                              struct list_head *list_h, int proto)
 795 {
 796         int err;
 797         struct mlx4_spec_list *spec_l2 = NULL;
 798         struct mlx4_spec_list *spec_l3 = NULL;
 799         struct mlx4_spec_list *spec_l4 = NULL;
 800         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
 801
 802         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 803         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 804         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
 805         if (!spec_l2 || !spec_l3 || !spec_l4) {
 806                 err = -ENOMEM;
 807                 goto free_spec;
 808         }
 809
 810         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 811
 812         if (proto == TCP_V4_FLOW) {
 813                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
 814                                                            spec_l2,
 815                                                            cmd->fs.h_u.
 816                                                            tcp_ip4_spec.ip4dst);
 817                 if (err)
 818                         goto free_spec;
 819                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
 820                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
 821                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
 822                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
 823                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
 824         } else {
 825                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
 826                                                            spec_l2,
 827                                                            cmd->fs.h_u.
 828                                                            udp_ip4_spec.ip4dst);
 829                 if (err)
 830                         goto free_spec;
 831                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
 832                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
 833                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
 834                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
 835                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
 836         }
 837
 838         if (l4_mask->ip4src)
 839                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
 840         if (l4_mask->ip4dst)
 841                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
 842
 843         if (l4_mask->psrc)
 844                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
 845         if (l4_mask->pdst)
 846                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
 847
 848         list_add_tail(&spec_l3->list, list_h);
 849         list_add_tail(&spec_l4->list, list_h);
 850
 851         return 0;
 852
 853 free_spec:
 854         kfree(spec_l2);
 855         kfree(spec_l3);
 856         kfree(spec_l4);
 857         return err;
 858 }
 859
 860 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
 861                                              struct ethtool_rxnfc *cmd,
 862                                              struct list_head *rule_list_h)
 863 {
 864         int err;
 865         struct ethhdr *eth_spec;
 866         struct mlx4_spec_list *spec_l2;
 867         struct mlx4_en_priv *priv = netdev_priv(dev);
 868
 869         err = mlx4_en_validate_flow(dev, cmd);
 870         if (err)
 871                 return err;
 872
 873         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 874         case ETHER_FLOW:
 875                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 876                 if (!spec_l2)
 877                         return -ENOMEM;
 878
 879                 eth_spec = &cmd->fs.h_u.ether_spec;
 880                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
 881                                              &eth_spec->h_dest[0]);
 882                 spec_l2->eth.ether_type = eth_spec->h_proto;
 883                 if (eth_spec->h_proto)
 884                         spec_l2->eth.ether_type_enable = 1;
 885                 break;
 886         case IP_USER_FLOW:
 887                 err = add_ip_rule(priv, cmd, rule_list_h);
 888                 break;
 889         case TCP_V4_FLOW:
 890                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
 891                 break;
 892         case UDP_V4_FLOW:
 893                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
 894                 break;
 895         }
 896
 897         return err;
 898 }
 899
 900 static int mlx4_en_flow_replace(struct net_device *dev,
 901                                 struct ethtool_rxnfc *cmd)
 902 {
 903         int err;
 904         struct mlx4_en_priv *priv = netdev_priv(dev);
 905         struct ethtool_flow_id *loc_rule;
 906         struct mlx4_spec_list *spec, *tmp_spec;
 907         u32 qpn;
 908         u64 reg_id;
 909
 910         struct mlx4_net_trans_rule rule = {
 911                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
 912                 .exclusive = 0,
 913                 .allow_loopback = 1,
 914                 .promisc_mode = MLX4_FS_REGULAR,
 915         };
 916
 917         rule.port = priv->port;
 918         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
 919         INIT_LIST_HEAD(&rule.list);
 920
 921         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
 922         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
 923                 qpn = priv->drop_qp.qpn;
 924         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
 925                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
 926         } else {
 927                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
 928                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
 929                                 cmd->fs.ring_cookie);
 930                         return -EINVAL;
 931                 }
 932                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
 933                 if (!qpn) {
 934                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
 935                                 cmd->fs.ring_cookie);
 936                         return -EINVAL;
 937                 }
 938         }
 939         rule.qpn = qpn;
 940         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
 941         if (err)
 942                 goto out_free_list;
 943
 944         loc_rule = &priv->ethtool_rules[cmd->fs.location];
 945         if (loc_rule->id) {
 946                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
 947                 if (err) {
 948                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
 949                                cmd->fs.location, loc_rule->id);
 950                         goto out_free_list;
 951                 }
 952                 loc_rule->id = 0;
 953                 memset(&loc_rule->flow_spec, 0,
 954                        sizeof(struct ethtool_rx_flow_spec));
 955                 list_del(&loc_rule->list);
 956         }
 957         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
 958         if (err) {
 959                 en_err(priv, "Fail to attach network rule at location %d\n",
 960                        cmd->fs.location);
 961                 goto out_free_list;
 962         }
 963         loc_rule->id = reg_id;
 964         memcpy(&loc_rule->flow_spec, &cmd->fs,
 965                sizeof(struct ethtool_rx_flow_spec));
 966         list_add_tail(&loc_rule->list, &priv->ethtool_list);
 967
 968 out_free_list:
 969         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
 970                 list_del(&spec->list);
 971                 kfree(spec);
 972         }
 973         return err;
 974 }
 975
 976 static int mlx4_en_flow_detach(struct net_device *dev,
 977                                struct ethtool_rxnfc *cmd)
 978 {
 979         int err = 0;
 980         struct ethtool_flow_id *rule;
 981         struct mlx4_en_priv *priv = netdev_priv(dev);
 982
 983         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
 984                 return -EINVAL;
 985
 986         rule = &priv->ethtool_rules[cmd->fs.location];
 987         if (!rule->id) {
 988                 err =  -ENOENT;
 989                 goto out;
 990         }
 991
 992         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
 993         if (err) {
 994                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
 995                        cmd->fs.location, rule->id);
 996                 goto out;
 997         }
 998         rule->id = 0;
 999         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1000         list_del(&rule->list);
1001 out:
1002         return err;
1003
1004 }
1005
1006 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1007                             int loc)
1008 {
1009         int err = 0;
1010         struct ethtool_flow_id *rule;
1011         struct mlx4_en_priv *priv = netdev_priv(dev);
1012
1013         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1014                 return -EINVAL;
1015
1016         rule = &priv->ethtool_rules[loc];
1017         if (rule->id)
1018                 memcpy(&cmd->fs, &rule->flow_spec,
1019                        sizeof(struct ethtool_rx_flow_spec));
1020         else
1021                 err = -ENOENT;
1022
1023         return err;
1024 }
1025
1026 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1027 {
1028
1029         int i, res = 0;
1030         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1031                 if (priv->ethtool_rules[i].id)
1032                         res++;
1033         }
1034         return res;
1035
1036 }
1037
1038 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1039                              u32 *rule_locs)
1040 {
1041         struct mlx4_en_priv *priv = netdev_priv(dev);
1042         struct mlx4_en_dev *mdev = priv->mdev;
1043         int err = 0;
1044         int i = 0, priority = 0;
1045
1046         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1047              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1048              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1049             (mdev->dev->caps.steering_mode !=
1050              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1051                 return -EINVAL;
1052
1053         switch (cmd->cmd) {
1054         case ETHTOOL_GRXRINGS:
1055                 cmd->data = priv->rx_ring_num;
1056                 break;
1057         case ETHTOOL_GRXCLSRLCNT:
1058                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1059                 break;
1060         case ETHTOOL_GRXCLSRULE:
1061                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1062                 break;
1063         case ETHTOOL_GRXCLSRLALL:
1064                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1065                         err = mlx4_en_get_flow(dev, cmd, i);
1066                         if (!err)
1067                                 rule_locs[priority++] = i;
1068                         i++;
1069                 }
1070                 err = 0;
1071                 break;
1072         default:
1073                 err = -EOPNOTSUPP;
1074                 break;
1075         }
1076
1077         return err;
1078 }
1079
1080 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1081 {
1082         int err = 0;
1083         struct mlx4_en_priv *priv = netdev_priv(dev);
1084         struct mlx4_en_dev *mdev = priv->mdev;
1085
1086         if (mdev->dev->caps.steering_mode !=
1087             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1088                 return -EINVAL;
1089
1090         switch (cmd->cmd) {
1091         case ETHTOOL_SRXCLSRLINS:
1092                 err = mlx4_en_flow_replace(dev, cmd);
1093                 break;
1094         case ETHTOOL_SRXCLSRLDEL:
1095                 err = mlx4_en_flow_detach(dev, cmd);
1096                 break;
1097         default:
1098                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1099                 return -EINVAL;
1100         }
1101
1102         return err;
1103 }
1104
1105 static void mlx4_en_get_channels(struct net_device *dev,
1106                                  struct ethtool_channels *channel)
1107 {
1108         struct mlx4_en_priv *priv = netdev_priv(dev);
1109
1110         memset(channel, 0, sizeof(*channel));
1111
1112         channel->max_rx = MAX_RX_RINGS;
1113         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1114
1115         channel->rx_count = priv->rx_ring_num;
1116         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1117 }
1118
1119 static int mlx4_en_set_channels(struct net_device *dev,
1120                                 struct ethtool_channels *channel)
1121 {
1122         struct mlx4_en_priv *priv = netdev_priv(dev);
1123         struct mlx4_en_dev *mdev = priv->mdev;
1124         int port_up = 0;
1125         int err = 0;
1126
1127         if (channel->other_count || channel->combined_count ||
1128             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1129             channel->rx_count > MAX_RX_RINGS ||
1130             !channel->tx_count || !channel->rx_count)
1131                 return -EINVAL;
1132
1133         mutex_lock(&mdev->state_lock);
1134         if (priv->port_up) {
1135                 port_up = 1;
1136                 mlx4_en_stop_port(dev, 1);
1137         }
1138
1139         mlx4_en_free_resources(priv);
1140
1141         priv->num_tx_rings_p_up = channel->tx_count;
1142         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1143         priv->rx_ring_num = channel->rx_count;
1144
1145         err = mlx4_en_alloc_resources(priv);
1146         if (err) {
1147                 en_err(priv, "Failed reallocating port resources\n");
1148                 goto out;
1149         }
1150
1151         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1152         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1153
1154         if (dev->num_tc)
1155                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1156
1157         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1158         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1159
1160         if (port_up) {
1161                 err = mlx4_en_start_port(dev);
1162                 if (err)
1163                         en_err(priv, "Failed starting port\n");
1164         }
1165
1166         err = mlx4_en_moderation_update(priv);
1167
1168 out:
1169         mutex_unlock(&mdev->state_lock);
1170         return err;
1171 }
1172
1173 static int mlx4_en_get_ts_info(struct net_device *dev,
1174                                struct ethtool_ts_info *info)
1175 {
1176         struct mlx4_en_priv *priv = netdev_priv(dev);
1177         struct mlx4_en_dev *mdev = priv->mdev;
1178         int ret;
1179
1180         ret = ethtool_op_get_ts_info(dev, info);
1181         if (ret)
1182                 return ret;
1183
1184         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1185                 info->so_timestamping |=
1186                         SOF_TIMESTAMPING_TX_HARDWARE |
1187                         SOF_TIMESTAMPING_RX_HARDWARE |
1188                         SOF_TIMESTAMPING_RAW_HARDWARE;
1189
1190                 info->tx_types =
1191                         (1 << HWTSTAMP_TX_OFF) |
1192                         (1 << HWTSTAMP_TX_ON);
1193
1194                 info->rx_filters =
1195                         (1 << HWTSTAMP_FILTER_NONE) |
1196                         (1 << HWTSTAMP_FILTER_ALL);
1197
1198                 if (mdev->ptp_clock)
1199                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1200         }
1201
1202         return ret;
1203 }
1204
1205 const struct ethtool_ops mlx4_en_ethtool_ops = {
1206         .get_drvinfo = mlx4_en_get_drvinfo,
1207         .get_settings = mlx4_en_get_settings,
1208         .set_settings = mlx4_en_set_settings,
1209         .get_link = ethtool_op_get_link,
1210         .get_strings = mlx4_en_get_strings,
1211         .get_sset_count = mlx4_en_get_sset_count,
1212         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1213         .self_test = mlx4_en_self_test,
1214         .get_wol = mlx4_en_get_wol,
1215         .set_wol = mlx4_en_set_wol,
1216         .get_msglevel = mlx4_en_get_msglevel,
1217         .set_msglevel = mlx4_en_set_msglevel,
1218         .get_coalesce = mlx4_en_get_coalesce,
1219         .set_coalesce = mlx4_en_set_coalesce,
1220         .get_pauseparam = mlx4_en_get_pauseparam,
1221         .set_pauseparam = mlx4_en_set_pauseparam,
1222         .get_ringparam = mlx4_en_get_ringparam,
1223         .set_ringparam = mlx4_en_set_ringparam,
1224         .get_rxnfc = mlx4_en_get_rxnfc,
1225         .set_rxnfc = mlx4_en_set_rxnfc,
1226         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1227         .get_rxfh = mlx4_en_get_rxfh,
1228         .set_rxfh = mlx4_en_set_rxfh,
1229         .get_channels = mlx4_en_get_channels,
1230         .set_channels = mlx4_en_set_channels,
1231         .get_ts_info = mlx4_en_get_ts_info,
1232 };
1233
1234
1235
1236
1237