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 mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 102         "blueflame",
 103 };
 104
 105 static const char main_strings[][ETH_GSTRING_LEN] = {
 106         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 107         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 108         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 109         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 110         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 111         "tx_heartbeat_errors", "tx_window_errors",
 112
 113         /* port statistics */
 114         "tso_packets",
 115         "xmit_more",
 116         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 117         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
 118
 119         /* packet statistics */
 120         "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
 121         "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
 122         "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
 123         "tx_prio_6", "tx_prio_7",
 124 };
 125 #define NUM_MAIN_STATS  21
 126 #define NUM_ALL_STATS   (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
 127
 128 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 129         "Interrupt Test",
 130         "Link Test",
 131         "Speed Test",
 132         "Register Test",
 133         "Loopback Test",
 134 };
 135
 136 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 137 {
 138         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 139 }
 140
 141 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 142 {
 143         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 144 }
 145
 146 static void mlx4_en_get_wol(struct net_device *netdev,
 147                             struct ethtool_wolinfo *wol)
 148 {
 149         struct mlx4_en_priv *priv = netdev_priv(netdev);
 150         int err = 0;
 151         u64 config = 0;
 152         u64 mask;
 153
 154         if ((priv->port < 1) || (priv->port > 2)) {
 155                 en_err(priv, "Failed to get WoL information\n");
 156                 return;
 157         }
 158
 159         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 160                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 161
 162         if (!(priv->mdev->dev->caps.flags & mask)) {
 163                 wol->supported = 0;
 164                 wol->wolopts = 0;
 165                 return;
 166         }
 167
 168         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 169         if (err) {
 170                 en_err(priv, "Failed to get WoL information\n");
 171                 return;
 172         }
 173
 174         if (config & MLX4_EN_WOL_MAGIC)
 175                 wol->supported = WAKE_MAGIC;
 176         else
 177                 wol->supported = 0;
 178
 179         if (config & MLX4_EN_WOL_ENABLED)
 180                 wol->wolopts = WAKE_MAGIC;
 181         else
 182                 wol->wolopts = 0;
 183 }
 184
 185 static int mlx4_en_set_wol(struct net_device *netdev,
 186                             struct ethtool_wolinfo *wol)
 187 {
 188         struct mlx4_en_priv *priv = netdev_priv(netdev);
 189         u64 config = 0;
 190         int err = 0;
 191         u64 mask;
 192
 193         if ((priv->port < 1) || (priv->port > 2))
 194                 return -EOPNOTSUPP;
 195
 196         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 197                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 198
 199         if (!(priv->mdev->dev->caps.flags & mask))
 200                 return -EOPNOTSUPP;
 201
 202         if (wol->supported & ~WAKE_MAGIC)
 203                 return -EINVAL;
 204
 205         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 206         if (err) {
 207                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 208                 return err;
 209         }
 210
 211         if (wol->wolopts & WAKE_MAGIC) {
 212                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 213                                 MLX4_EN_WOL_MAGIC;
 214         } else {
 215                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 216                 config |= MLX4_EN_WOL_DO_MODIFY;
 217         }
 218
 219         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 220         if (err)
 221                 en_err(priv, "Failed to set WoL information\n");
 222
 223         return err;
 224 }
 225
 226 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 227 {
 228         struct mlx4_en_priv *priv = netdev_priv(dev);
 229         int bit_count = hweight64(priv->stats_bitmap);
 230
 231         switch (sset) {
 232         case ETH_SS_STATS:
 233                 return (priv->stats_bitmap ? bit_count : NUM_ALL_STATS) +
 234                         (priv->tx_ring_num * 2) +
 235 #ifdef CONFIG_NET_RX_BUSY_POLL
 236                         (priv->rx_ring_num * 5);
 237 #else
 238                         (priv->rx_ring_num * 2);
 239 #endif
 240         case ETH_SS_TEST:
 241                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 242                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 243         case ETH_SS_PRIV_FLAGS:
 244                 return ARRAY_SIZE(mlx4_en_priv_flags);
 245         default:
 246                 return -EOPNOTSUPP;
 247         }
 248 }
 249
 250 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 251                 struct ethtool_stats *stats, uint64_t *data)
 252 {
 253         struct mlx4_en_priv *priv = netdev_priv(dev);
 254         int index = 0;
 255         int i, j = 0;
 256
 257         spin_lock_bh(&priv->stats_lock);
 258
 259         if (!(priv->stats_bitmap)) {
 260                 for (i = 0; i < NUM_MAIN_STATS; i++)
 261                         data[index++] =
 262                                 ((unsigned long *) &priv->stats)[i];
 263                 for (i = 0; i < NUM_PORT_STATS; i++)
 264                         data[index++] =
 265                                 ((unsigned long *) &priv->port_stats)[i];
 266                 for (i = 0; i < NUM_PKT_STATS; i++)
 267                         data[index++] =
 268                                 ((unsigned long *) &priv->pkstats)[i];
 269         } else {
 270                 for (i = 0; i < NUM_MAIN_STATS; i++) {
 271                         if ((priv->stats_bitmap >> j) & 1)
 272                                 data[index++] =
 273                                 ((unsigned long *) &priv->stats)[i];
 274                         j++;
 275                 }
 276                 for (i = 0; i < NUM_PORT_STATS; i++) {
 277                         if ((priv->stats_bitmap >> j) & 1)
 278                                 data[index++] =
 279                                 ((unsigned long *) &priv->port_stats)[i];
 280                         j++;
 281                 }
 282         }
 283         for (i = 0; i < priv->tx_ring_num; i++) {
 284                 data[index++] = priv->tx_ring[i]->packets;
 285                 data[index++] = priv->tx_ring[i]->bytes;
 286         }
 287         for (i = 0; i < priv->rx_ring_num; i++) {
 288                 data[index++] = priv->rx_ring[i]->packets;
 289                 data[index++] = priv->rx_ring[i]->bytes;
 290 #ifdef CONFIG_NET_RX_BUSY_POLL
 291                 data[index++] = priv->rx_ring[i]->yields;
 292                 data[index++] = priv->rx_ring[i]->misses;
 293                 data[index++] = priv->rx_ring[i]->cleaned;
 294 #endif
 295         }
 296         spin_unlock_bh(&priv->stats_lock);
 297
 298 }
 299
 300 static void mlx4_en_self_test(struct net_device *dev,
 301                               struct ethtool_test *etest, u64 *buf)
 302 {
 303         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 304 }
 305
 306 static void mlx4_en_get_strings(struct net_device *dev,
 307                                 uint32_t stringset, uint8_t *data)
 308 {
 309         struct mlx4_en_priv *priv = netdev_priv(dev);
 310         int index = 0;
 311         int i;
 312
 313         switch (stringset) {
 314         case ETH_SS_TEST:
 315                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 316                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 317                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 318                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 319                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 320                 break;
 321
 322         case ETH_SS_STATS:
 323                 /* Add main counters */
 324                 if (!priv->stats_bitmap) {
 325                         for (i = 0; i < NUM_MAIN_STATS; i++)
 326                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 327                                         main_strings[i]);
 328                         for (i = 0; i < NUM_PORT_STATS; i++)
 329                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 330                                         main_strings[i +
 331                                         NUM_MAIN_STATS]);
 332                         for (i = 0; i < NUM_PKT_STATS; i++)
 333                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 334                                         main_strings[i +
 335                                         NUM_MAIN_STATS +
 336                                         NUM_PORT_STATS]);
 337                 } else
 338                         for (i = 0; i < NUM_MAIN_STATS + NUM_PORT_STATS; i++) {
 339                                 if ((priv->stats_bitmap >> i) & 1) {
 340                                         strcpy(data +
 341                                                (index++) * ETH_GSTRING_LEN,
 342                                                main_strings[i]);
 343                                 }
 344                                 if (!(priv->stats_bitmap >> i))
 345                                         break;
 346                         }
 347                 for (i = 0; i < priv->tx_ring_num; i++) {
 348                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 349                                 "tx%d_packets", i);
 350                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 351                                 "tx%d_bytes", i);
 352                 }
 353                 for (i = 0; i < priv->rx_ring_num; i++) {
 354                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 355                                 "rx%d_packets", i);
 356                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 357                                 "rx%d_bytes", i);
 358 #ifdef CONFIG_NET_RX_BUSY_POLL
 359                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 360                                 "rx%d_napi_yield", i);
 361                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 362                                 "rx%d_misses", i);
 363                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 364                                 "rx%d_cleaned", i);
 365 #endif
 366                 }
 367                 break;
 368         case ETH_SS_PRIV_FLAGS:
 369                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 370                         strcpy(data + i * ETH_GSTRING_LEN,
 371                                mlx4_en_priv_flags[i]);
 372                 break;
 373
 374         }
 375 }
 376
 377 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 378 {
 379         struct mlx4_en_priv *priv = netdev_priv(dev);
 380         int trans_type;
 381
 382         cmd->autoneg = AUTONEG_DISABLE;
 383         cmd->supported = SUPPORTED_10000baseT_Full;
 384         cmd->advertising = ADVERTISED_10000baseT_Full;
 385
 386         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 387                 return -ENOMEM;
 388
 389         trans_type = priv->port_state.transciver;
 390         if (netif_carrier_ok(dev)) {
 391                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 392                 cmd->duplex = DUPLEX_FULL;
 393         } else {
 394                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 395                 cmd->duplex = DUPLEX_UNKNOWN;
 396         }
 397
 398         if (trans_type > 0 && trans_type <= 0xC) {
 399                 cmd->port = PORT_FIBRE;
 400                 cmd->transceiver = XCVR_EXTERNAL;
 401                 cmd->supported |= SUPPORTED_FIBRE;
 402                 cmd->advertising |= ADVERTISED_FIBRE;
 403         } else if (trans_type == 0x80 || trans_type == 0) {
 404                 cmd->port = PORT_TP;
 405                 cmd->transceiver = XCVR_INTERNAL;
 406                 cmd->supported |= SUPPORTED_TP;
 407                 cmd->advertising |= ADVERTISED_TP;
 408         } else  {
 409                 cmd->port = -1;
 410                 cmd->transceiver = -1;
 411         }
 412         return 0;
 413 }
 414
 415 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 416 {
 417         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 418             (ethtool_cmd_speed(cmd) != SPEED_10000) ||
 419             (cmd->duplex != DUPLEX_FULL))
 420                 return -EINVAL;
 421
 422         /* Nothing to change */
 423         return 0;
 424 }
 425
 426 static int mlx4_en_get_coalesce(struct net_device *dev,
 427                               struct ethtool_coalesce *coal)
 428 {
 429         struct mlx4_en_priv *priv = netdev_priv(dev);
 430
 431         coal->tx_coalesce_usecs = priv->tx_usecs;
 432         coal->tx_max_coalesced_frames = priv->tx_frames;
 433         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 434
 435         coal->rx_coalesce_usecs = priv->rx_usecs;
 436         coal->rx_max_coalesced_frames = priv->rx_frames;
 437
 438         coal->pkt_rate_low = priv->pkt_rate_low;
 439         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 440         coal->pkt_rate_high = priv->pkt_rate_high;
 441         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 442         coal->rate_sample_interval = priv->sample_interval;
 443         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 444
 445         return 0;
 446 }
 447
 448 static int mlx4_en_set_coalesce(struct net_device *dev,
 449                               struct ethtool_coalesce *coal)
 450 {
 451         struct mlx4_en_priv *priv = netdev_priv(dev);
 452
 453         if (!coal->tx_max_coalesced_frames_irq)
 454                 return -EINVAL;
 455
 456         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 457                            MLX4_EN_AUTO_CONF) ?
 458                                 MLX4_EN_RX_COAL_TARGET :
 459                                 coal->rx_max_coalesced_frames;
 460         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 461                           MLX4_EN_AUTO_CONF) ?
 462                                 MLX4_EN_RX_COAL_TIME :
 463                                 coal->rx_coalesce_usecs;
 464
 465         /* Setting TX coalescing parameters */
 466         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 467             coal->tx_max_coalesced_frames != priv->tx_frames) {
 468                 priv->tx_usecs = coal->tx_coalesce_usecs;
 469                 priv->tx_frames = coal->tx_max_coalesced_frames;
 470         }
 471
 472         /* Set adaptive coalescing params */
 473         priv->pkt_rate_low = coal->pkt_rate_low;
 474         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 475         priv->pkt_rate_high = coal->pkt_rate_high;
 476         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 477         priv->sample_interval = coal->rate_sample_interval;
 478         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 479         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
 480
 481         return mlx4_en_moderation_update(priv);
 482 }
 483
 484 static int mlx4_en_set_pauseparam(struct net_device *dev,
 485                                 struct ethtool_pauseparam *pause)
 486 {
 487         struct mlx4_en_priv *priv = netdev_priv(dev);
 488         struct mlx4_en_dev *mdev = priv->mdev;
 489         int err;
 490
 491         if (pause->autoneg)
 492                 return -EINVAL;
 493
 494         priv->prof->tx_pause = pause->tx_pause != 0;
 495         priv->prof->rx_pause = pause->rx_pause != 0;
 496         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 497                                     priv->rx_skb_size + ETH_FCS_LEN,
 498                                     priv->prof->tx_pause,
 499                                     priv->prof->tx_ppp,
 500                                     priv->prof->rx_pause,
 501                                     priv->prof->rx_ppp);
 502         if (err)
 503                 en_err(priv, "Failed setting pause params\n");
 504
 505         return err;
 506 }
 507
 508 static void mlx4_en_get_pauseparam(struct net_device *dev,
 509                                  struct ethtool_pauseparam *pause)
 510 {
 511         struct mlx4_en_priv *priv = netdev_priv(dev);
 512
 513         pause->tx_pause = priv->prof->tx_pause;
 514         pause->rx_pause = priv->prof->rx_pause;
 515 }
 516
 517 static int mlx4_en_set_ringparam(struct net_device *dev,
 518                                  struct ethtool_ringparam *param)
 519 {
 520         struct mlx4_en_priv *priv = netdev_priv(dev);
 521         struct mlx4_en_dev *mdev = priv->mdev;
 522         u32 rx_size, tx_size;
 523         int port_up = 0;
 524         int err = 0;
 525
 526         if (param->rx_jumbo_pending || param->rx_mini_pending)
 527                 return -EINVAL;
 528
 529         rx_size = roundup_pow_of_two(param->rx_pending);
 530         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 531         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 532         tx_size = roundup_pow_of_two(param->tx_pending);
 533         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 534         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 535
 536         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
 537                                         priv->rx_ring[0]->size) &&
 538             tx_size == priv->tx_ring[0]->size)
 539                 return 0;
 540
 541         mutex_lock(&mdev->state_lock);
 542         if (priv->port_up) {
 543                 port_up = 1;
 544                 mlx4_en_stop_port(dev, 1);
 545         }
 546
 547         mlx4_en_free_resources(priv);
 548
 549         priv->prof->tx_ring_size = tx_size;
 550         priv->prof->rx_ring_size = rx_size;
 551
 552         err = mlx4_en_alloc_resources(priv);
 553         if (err) {
 554                 en_err(priv, "Failed reallocating port resources\n");
 555                 goto out;
 556         }
 557         if (port_up) {
 558                 err = mlx4_en_start_port(dev);
 559                 if (err)
 560                         en_err(priv, "Failed starting port\n");
 561         }
 562
 563         err = mlx4_en_moderation_update(priv);
 564
 565 out:
 566         mutex_unlock(&mdev->state_lock);
 567         return err;
 568 }
 569
 570 static void mlx4_en_get_ringparam(struct net_device *dev,
 571                                   struct ethtool_ringparam *param)
 572 {
 573         struct mlx4_en_priv *priv = netdev_priv(dev);
 574
 575         memset(param, 0, sizeof(*param));
 576         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 577         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 578         param->rx_pending = priv->port_up ?
 579                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
 580         param->tx_pending = priv->tx_ring[0]->size;
 581 }
 582
 583 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
 584 {
 585         struct mlx4_en_priv *priv = netdev_priv(dev);
 586
 587         return priv->rx_ring_num;
 588 }
 589
 590 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key)
 591 {
 592         struct mlx4_en_priv *priv = netdev_priv(dev);
 593         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
 594         int rss_rings;
 595         size_t n = priv->rx_ring_num;
 596         int err = 0;
 597
 598         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
 599
 600         while (n--) {
 601                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
 602                         rss_map->base_qpn;
 603         }
 604
 605         return err;
 606 }
 607
 608 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
 609                             const u8 *key)
 610 {
 611         struct mlx4_en_priv *priv = netdev_priv(dev);
 612         struct mlx4_en_dev *mdev = priv->mdev;
 613         int port_up = 0;
 614         int err = 0;
 615         int i;
 616         int rss_rings = 0;
 617
 618         /* Calculate RSS table size and make sure flows are spread evenly
 619          * between rings
 620          */
 621         for (i = 0; i < priv->rx_ring_num; i++) {
 622                 if (i > 0 && !ring_index[i] && !rss_rings)
 623                         rss_rings = i;
 624
 625                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
 626                         return -EINVAL;
 627         }
 628
 629         if (!rss_rings)
 630                 rss_rings = priv->rx_ring_num;
 631
 632         /* RSS table size must be an order of 2 */
 633         if (!is_power_of_2(rss_rings))
 634                 return -EINVAL;
 635
 636         mutex_lock(&mdev->state_lock);
 637         if (priv->port_up) {
 638                 port_up = 1;
 639                 mlx4_en_stop_port(dev, 1);
 640         }
 641
 642         priv->prof->rss_rings = rss_rings;
 643
 644         if (port_up) {
 645                 err = mlx4_en_start_port(dev);
 646                 if (err)
 647                         en_err(priv, "Failed starting port\n");
 648         }
 649
 650         mutex_unlock(&mdev->state_lock);
 651         return err;
 652 }
 653
 654 #define all_zeros_or_all_ones(field)            \
 655         ((field) == 0 || (field) == (__force typeof(field))-1)
 656
 657 static int mlx4_en_validate_flow(struct net_device *dev,
 658                                  struct ethtool_rxnfc *cmd)
 659 {
 660         struct ethtool_usrip4_spec *l3_mask;
 661         struct ethtool_tcpip4_spec *l4_mask;
 662         struct ethhdr *eth_mask;
 663
 664         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
 665                 return -EINVAL;
 666
 667         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
 668                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
 669                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
 670                         return -EINVAL;
 671         }
 672
 673         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 674         case TCP_V4_FLOW:
 675         case UDP_V4_FLOW:
 676                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
 677                         return -EINVAL;
 678                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
 679                 /* don't allow mask which isn't all 0 or 1 */
 680                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
 681                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
 682                     !all_zeros_or_all_ones(l4_mask->psrc) ||
 683                     !all_zeros_or_all_ones(l4_mask->pdst))
 684                         return -EINVAL;
 685                 break;
 686         case IP_USER_FLOW:
 687                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
 688                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
 689                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
 690                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
 691                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
 692                     !all_zeros_or_all_ones(l3_mask->ip4dst))
 693                         return -EINVAL;
 694                 break;
 695         case ETHER_FLOW:
 696                 eth_mask = &cmd->fs.m_u.ether_spec;
 697                 /* source mac mask must not be set */
 698                 if (!is_zero_ether_addr(eth_mask->h_source))
 699                         return -EINVAL;
 700
 701                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
 702                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
 703                         return -EINVAL;
 704
 705                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
 706                         return -EINVAL;
 707                 break;
 708         default:
 709                 return -EINVAL;
 710         }
 711
 712         if ((cmd->fs.flow_type & FLOW_EXT)) {
 713                 if (cmd->fs.m_ext.vlan_etype ||
 714                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
 715                       0 ||
 716                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
 717                       cpu_to_be16(VLAN_VID_MASK)))
 718                         return -EINVAL;
 719
 720                 if (cmd->fs.m_ext.vlan_tci) {
 721                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
 722                                 return -EINVAL;
 723
 724                 }
 725         }
 726
 727         return 0;
 728 }
 729
 730 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
 731                                         struct list_head *rule_list_h,
 732                                         struct mlx4_spec_list *spec_l2,
 733                                         unsigned char *mac)
 734 {
 735         int err = 0;
 736         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
 737
 738         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
 739         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
 740         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
 741
 742         if ((cmd->fs.flow_type & FLOW_EXT) &&
 743             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
 744                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
 745                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
 746         }
 747
 748         list_add_tail(&spec_l2->list, rule_list_h);
 749
 750         return err;
 751 }
 752
 753 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
 754                                                 struct ethtool_rxnfc *cmd,
 755                                                 struct list_head *rule_list_h,
 756                                                 struct mlx4_spec_list *spec_l2,
 757                                                 __be32 ipv4_dst)
 758 {
 759 #ifdef CONFIG_INET
 760         unsigned char mac[ETH_ALEN];
 761
 762         if (!ipv4_is_multicast(ipv4_dst)) {
 763                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
 764                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
 765                 else
 766                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
 767         } else {
 768                 ip_eth_mc_map(ipv4_dst, mac);
 769         }
 770
 771         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
 772 #else
 773         return -EINVAL;
 774 #endif
 775 }
 776
 777 static int add_ip_rule(struct mlx4_en_priv *priv,
 778                        struct ethtool_rxnfc *cmd,
 779                        struct list_head *list_h)
 780 {
 781         int err;
 782         struct mlx4_spec_list *spec_l2 = NULL;
 783         struct mlx4_spec_list *spec_l3 = NULL;
 784         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
 785
 786         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 787         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 788         if (!spec_l2 || !spec_l3) {
 789                 err = -ENOMEM;
 790                 goto free_spec;
 791         }
 792
 793         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
 794                                                    cmd->fs.h_u.
 795                                                    usr_ip4_spec.ip4dst);
 796         if (err)
 797                 goto free_spec;
 798         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 799         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
 800         if (l3_mask->ip4src)
 801                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
 802         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
 803         if (l3_mask->ip4dst)
 804                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
 805         list_add_tail(&spec_l3->list, list_h);
 806
 807         return 0;
 808
 809 free_spec:
 810         kfree(spec_l2);
 811         kfree(spec_l3);
 812         return err;
 813 }
 814
 815 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
 816                              struct ethtool_rxnfc *cmd,
 817                              struct list_head *list_h, int proto)
 818 {
 819         int err;
 820         struct mlx4_spec_list *spec_l2 = NULL;
 821         struct mlx4_spec_list *spec_l3 = NULL;
 822         struct mlx4_spec_list *spec_l4 = NULL;
 823         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
 824
 825         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 826         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
 827         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
 828         if (!spec_l2 || !spec_l3 || !spec_l4) {
 829                 err = -ENOMEM;
 830                 goto free_spec;
 831         }
 832
 833         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
 834
 835         if (proto == TCP_V4_FLOW) {
 836                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
 837                                                            spec_l2,
 838                                                            cmd->fs.h_u.
 839                                                            tcp_ip4_spec.ip4dst);
 840                 if (err)
 841                         goto free_spec;
 842                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
 843                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
 844                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
 845                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
 846                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
 847         } else {
 848                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
 849                                                            spec_l2,
 850                                                            cmd->fs.h_u.
 851                                                            udp_ip4_spec.ip4dst);
 852                 if (err)
 853                         goto free_spec;
 854                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
 855                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
 856                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
 857                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
 858                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
 859         }
 860
 861         if (l4_mask->ip4src)
 862                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
 863         if (l4_mask->ip4dst)
 864                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
 865
 866         if (l4_mask->psrc)
 867                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
 868         if (l4_mask->pdst)
 869                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
 870
 871         list_add_tail(&spec_l3->list, list_h);
 872         list_add_tail(&spec_l4->list, list_h);
 873
 874         return 0;
 875
 876 free_spec:
 877         kfree(spec_l2);
 878         kfree(spec_l3);
 879         kfree(spec_l4);
 880         return err;
 881 }
 882
 883 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
 884                                              struct ethtool_rxnfc *cmd,
 885                                              struct list_head *rule_list_h)
 886 {
 887         int err;
 888         struct ethhdr *eth_spec;
 889         struct mlx4_spec_list *spec_l2;
 890         struct mlx4_en_priv *priv = netdev_priv(dev);
 891
 892         err = mlx4_en_validate_flow(dev, cmd);
 893         if (err)
 894                 return err;
 895
 896         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
 897         case ETHER_FLOW:
 898                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
 899                 if (!spec_l2)
 900                         return -ENOMEM;
 901
 902                 eth_spec = &cmd->fs.h_u.ether_spec;
 903                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
 904                                              &eth_spec->h_dest[0]);
 905                 spec_l2->eth.ether_type = eth_spec->h_proto;
 906                 if (eth_spec->h_proto)
 907                         spec_l2->eth.ether_type_enable = 1;
 908                 break;
 909         case IP_USER_FLOW:
 910                 err = add_ip_rule(priv, cmd, rule_list_h);
 911                 break;
 912         case TCP_V4_FLOW:
 913                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
 914                 break;
 915         case UDP_V4_FLOW:
 916                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
 917                 break;
 918         }
 919
 920         return err;
 921 }
 922
 923 static int mlx4_en_flow_replace(struct net_device *dev,
 924                                 struct ethtool_rxnfc *cmd)
 925 {
 926         int err;
 927         struct mlx4_en_priv *priv = netdev_priv(dev);
 928         struct ethtool_flow_id *loc_rule;
 929         struct mlx4_spec_list *spec, *tmp_spec;
 930         u32 qpn;
 931         u64 reg_id;
 932
 933         struct mlx4_net_trans_rule rule = {
 934                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
 935                 .exclusive = 0,
 936                 .allow_loopback = 1,
 937                 .promisc_mode = MLX4_FS_REGULAR,
 938         };
 939
 940         rule.port = priv->port;
 941         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
 942         INIT_LIST_HEAD(&rule.list);
 943
 944         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
 945         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
 946                 qpn = priv->drop_qp.qpn;
 947         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
 948                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
 949         } else {
 950                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
 951                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
 952                                 cmd->fs.ring_cookie);
 953                         return -EINVAL;
 954                 }
 955                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
 956                 if (!qpn) {
 957                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
 958                                 cmd->fs.ring_cookie);
 959                         return -EINVAL;
 960                 }
 961         }
 962         rule.qpn = qpn;
 963         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
 964         if (err)
 965                 goto out_free_list;
 966
 967         loc_rule = &priv->ethtool_rules[cmd->fs.location];
 968         if (loc_rule->id) {
 969                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
 970                 if (err) {
 971                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
 972                                cmd->fs.location, loc_rule->id);
 973                         goto out_free_list;
 974                 }
 975                 loc_rule->id = 0;
 976                 memset(&loc_rule->flow_spec, 0,
 977                        sizeof(struct ethtool_rx_flow_spec));
 978                 list_del(&loc_rule->list);
 979         }
 980         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
 981         if (err) {
 982                 en_err(priv, "Fail to attach network rule at location %d\n",
 983                        cmd->fs.location);
 984                 goto out_free_list;
 985         }
 986         loc_rule->id = reg_id;
 987         memcpy(&loc_rule->flow_spec, &cmd->fs,
 988                sizeof(struct ethtool_rx_flow_spec));
 989         list_add_tail(&loc_rule->list, &priv->ethtool_list);
 990
 991 out_free_list:
 992         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
 993                 list_del(&spec->list);
 994                 kfree(spec);
 995         }
 996         return err;
 997 }
 998
 999 static int mlx4_en_flow_detach(struct net_device *dev,
1000                                struct ethtool_rxnfc *cmd)
1001 {
1002         int err = 0;
1003         struct ethtool_flow_id *rule;
1004         struct mlx4_en_priv *priv = netdev_priv(dev);
1005
1006         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1007                 return -EINVAL;
1008
1009         rule = &priv->ethtool_rules[cmd->fs.location];
1010         if (!rule->id) {
1011                 err =  -ENOENT;
1012                 goto out;
1013         }
1014
1015         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1016         if (err) {
1017                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1018                        cmd->fs.location, rule->id);
1019                 goto out;
1020         }
1021         rule->id = 0;
1022         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1023         list_del(&rule->list);
1024 out:
1025         return err;
1026
1027 }
1028
1029 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1030                             int loc)
1031 {
1032         int err = 0;
1033         struct ethtool_flow_id *rule;
1034         struct mlx4_en_priv *priv = netdev_priv(dev);
1035
1036         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1037                 return -EINVAL;
1038
1039         rule = &priv->ethtool_rules[loc];
1040         if (rule->id)
1041                 memcpy(&cmd->fs, &rule->flow_spec,
1042                        sizeof(struct ethtool_rx_flow_spec));
1043         else
1044                 err = -ENOENT;
1045
1046         return err;
1047 }
1048
1049 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1050 {
1051
1052         int i, res = 0;
1053         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1054                 if (priv->ethtool_rules[i].id)
1055                         res++;
1056         }
1057         return res;
1058
1059 }
1060
1061 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1062                              u32 *rule_locs)
1063 {
1064         struct mlx4_en_priv *priv = netdev_priv(dev);
1065         struct mlx4_en_dev *mdev = priv->mdev;
1066         int err = 0;
1067         int i = 0, priority = 0;
1068
1069         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1070              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1071              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1072             (mdev->dev->caps.steering_mode !=
1073              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1074                 return -EINVAL;
1075
1076         switch (cmd->cmd) {
1077         case ETHTOOL_GRXRINGS:
1078                 cmd->data = priv->rx_ring_num;
1079                 break;
1080         case ETHTOOL_GRXCLSRLCNT:
1081                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1082                 break;
1083         case ETHTOOL_GRXCLSRULE:
1084                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1085                 break;
1086         case ETHTOOL_GRXCLSRLALL:
1087                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1088                         err = mlx4_en_get_flow(dev, cmd, i);
1089                         if (!err)
1090                                 rule_locs[priority++] = i;
1091                         i++;
1092                 }
1093                 err = 0;
1094                 break;
1095         default:
1096                 err = -EOPNOTSUPP;
1097                 break;
1098         }
1099
1100         return err;
1101 }
1102
1103 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1104 {
1105         int err = 0;
1106         struct mlx4_en_priv *priv = netdev_priv(dev);
1107         struct mlx4_en_dev *mdev = priv->mdev;
1108
1109         if (mdev->dev->caps.steering_mode !=
1110             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1111                 return -EINVAL;
1112
1113         switch (cmd->cmd) {
1114         case ETHTOOL_SRXCLSRLINS:
1115                 err = mlx4_en_flow_replace(dev, cmd);
1116                 break;
1117         case ETHTOOL_SRXCLSRLDEL:
1118                 err = mlx4_en_flow_detach(dev, cmd);
1119                 break;
1120         default:
1121                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1122                 return -EINVAL;
1123         }
1124
1125         return err;
1126 }
1127
1128 static void mlx4_en_get_channels(struct net_device *dev,
1129                                  struct ethtool_channels *channel)
1130 {
1131         struct mlx4_en_priv *priv = netdev_priv(dev);
1132
1133         memset(channel, 0, sizeof(*channel));
1134
1135         channel->max_rx = MAX_RX_RINGS;
1136         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1137
1138         channel->rx_count = priv->rx_ring_num;
1139         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1140 }
1141
1142 static int mlx4_en_set_channels(struct net_device *dev,
1143                                 struct ethtool_channels *channel)
1144 {
1145         struct mlx4_en_priv *priv = netdev_priv(dev);
1146         struct mlx4_en_dev *mdev = priv->mdev;
1147         int port_up = 0;
1148         int err = 0;
1149
1150         if (channel->other_count || channel->combined_count ||
1151             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1152             channel->rx_count > MAX_RX_RINGS ||
1153             !channel->tx_count || !channel->rx_count)
1154                 return -EINVAL;
1155
1156         mutex_lock(&mdev->state_lock);
1157         if (priv->port_up) {
1158                 port_up = 1;
1159                 mlx4_en_stop_port(dev, 1);
1160         }
1161
1162         mlx4_en_free_resources(priv);
1163
1164         priv->num_tx_rings_p_up = channel->tx_count;
1165         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1166         priv->rx_ring_num = channel->rx_count;
1167
1168         err = mlx4_en_alloc_resources(priv);
1169         if (err) {
1170                 en_err(priv, "Failed reallocating port resources\n");
1171                 goto out;
1172         }
1173
1174         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1175         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1176
1177         if (dev->num_tc)
1178                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1179
1180         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1181         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1182
1183         if (port_up) {
1184                 err = mlx4_en_start_port(dev);
1185                 if (err)
1186                         en_err(priv, "Failed starting port\n");
1187         }
1188
1189         err = mlx4_en_moderation_update(priv);
1190
1191 out:
1192         mutex_unlock(&mdev->state_lock);
1193         return err;
1194 }
1195
1196 static int mlx4_en_get_ts_info(struct net_device *dev,
1197                                struct ethtool_ts_info *info)
1198 {
1199         struct mlx4_en_priv *priv = netdev_priv(dev);
1200         struct mlx4_en_dev *mdev = priv->mdev;
1201         int ret;
1202
1203         ret = ethtool_op_get_ts_info(dev, info);
1204         if (ret)
1205                 return ret;
1206
1207         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1208                 info->so_timestamping |=
1209                         SOF_TIMESTAMPING_TX_HARDWARE |
1210                         SOF_TIMESTAMPING_RX_HARDWARE |
1211                         SOF_TIMESTAMPING_RAW_HARDWARE;
1212
1213                 info->tx_types =
1214                         (1 << HWTSTAMP_TX_OFF) |
1215                         (1 << HWTSTAMP_TX_ON);
1216
1217                 info->rx_filters =
1218                         (1 << HWTSTAMP_FILTER_NONE) |
1219                         (1 << HWTSTAMP_FILTER_ALL);
1220
1221                 if (mdev->ptp_clock)
1222                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1223         }
1224
1225         return ret;
1226 }
1227
1228 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1229 {
1230         struct mlx4_en_priv *priv = netdev_priv(dev);
1231         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1232         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1233         int i;
1234
1235         if (bf_enabled_new == bf_enabled_old)
1236                 return 0; /* Nothing to do */
1237
1238         if (bf_enabled_new) {
1239                 bool bf_supported = true;
1240
1241                 for (i = 0; i < priv->tx_ring_num; i++)
1242                         bf_supported &= priv->tx_ring[i]->bf_alloced;
1243
1244                 if (!bf_supported) {
1245                         en_err(priv, "BlueFlame is not supported\n");
1246                         return -EINVAL;
1247                 }
1248
1249                 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1250         } else {
1251                 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1252         }
1253
1254         for (i = 0; i < priv->tx_ring_num; i++)
1255                 priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1256
1257         en_info(priv, "BlueFlame %s\n",
1258                 bf_enabled_new ?  "Enabled" : "Disabled");
1259
1260         return 0;
1261 }
1262
1263 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1264 {
1265         struct mlx4_en_priv *priv = netdev_priv(dev);
1266
1267         return priv->pflags;
1268 }
1269
1270 static int mlx4_en_get_tunable(struct net_device *dev,
1271                                const struct ethtool_tunable *tuna,
1272                                void *data)
1273 {
1274         const struct mlx4_en_priv *priv = netdev_priv(dev);
1275         int ret = 0;
1276
1277         switch (tuna->id) {
1278         case ETHTOOL_TX_COPYBREAK:
1279                 *(u32 *)data = priv->prof->inline_thold;
1280                 break;
1281         default:
1282                 ret = -EINVAL;
1283                 break;
1284         }
1285
1286         return ret;
1287 }
1288
1289 static int mlx4_en_set_tunable(struct net_device *dev,
1290                                const struct ethtool_tunable *tuna,
1291                                const void *data)
1292 {
1293         struct mlx4_en_priv *priv = netdev_priv(dev);
1294         int val, ret = 0;
1295
1296         switch (tuna->id) {
1297         case ETHTOOL_TX_COPYBREAK:
1298                 val = *(u32 *)data;
1299                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1300                         ret = -EINVAL;
1301                 else
1302                         priv->prof->inline_thold = val;
1303                 break;
1304         default:
1305                 ret = -EINVAL;
1306                 break;
1307         }
1308
1309         return ret;
1310 }
1311
1312
1313 const struct ethtool_ops mlx4_en_ethtool_ops = {
1314         .get_drvinfo = mlx4_en_get_drvinfo,
1315         .get_settings = mlx4_en_get_settings,
1316         .set_settings = mlx4_en_set_settings,
1317         .get_link = ethtool_op_get_link,
1318         .get_strings = mlx4_en_get_strings,
1319         .get_sset_count = mlx4_en_get_sset_count,
1320         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1321         .self_test = mlx4_en_self_test,
1322         .get_wol = mlx4_en_get_wol,
1323         .set_wol = mlx4_en_set_wol,
1324         .get_msglevel = mlx4_en_get_msglevel,
1325         .set_msglevel = mlx4_en_set_msglevel,
1326         .get_coalesce = mlx4_en_get_coalesce,
1327         .set_coalesce = mlx4_en_set_coalesce,
1328         .get_pauseparam = mlx4_en_get_pauseparam,
1329         .set_pauseparam = mlx4_en_set_pauseparam,
1330         .get_ringparam = mlx4_en_get_ringparam,
1331         .set_ringparam = mlx4_en_set_ringparam,
1332         .get_rxnfc = mlx4_en_get_rxnfc,
1333         .set_rxnfc = mlx4_en_set_rxnfc,
1334         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1335         .get_rxfh = mlx4_en_get_rxfh,
1336         .set_rxfh = mlx4_en_set_rxfh,
1337         .get_channels = mlx4_en_get_channels,
1338         .set_channels = mlx4_en_set_channels,
1339         .get_ts_info = mlx4_en_get_ts_info,
1340         .set_priv_flags = mlx4_en_set_priv_flags,
1341         .get_priv_flags = mlx4_en_get_priv_flags,
1342         .get_tunable            = mlx4_en_get_tunable,
1343         .set_tunable            = mlx4_en_set_tunable,
1344 };
1345
1346
1347
1348
1349