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