drivers/net/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
  38 #include "mlx4_en.h"
  39 #include "en_port.h"
  40
  41
  42 static void
  43 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  44 {
  45         struct mlx4_en_priv *priv = netdev_priv(dev);
  46         struct mlx4_en_dev *mdev = priv->mdev;
  47
  48         strncpy(drvinfo->driver, DRV_NAME, 32);
  49         strncpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")", 32);
  50         sprintf(drvinfo->fw_version, "%d.%d.%d",
  51                 (u16) (mdev->dev->caps.fw_ver >> 32),
  52                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  53                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  54         strncpy(drvinfo->bus_info, pci_name(mdev->dev->pdev), 32);
  55         drvinfo->n_stats = 0;
  56         drvinfo->regdump_len = 0;
  57         drvinfo->eedump_len = 0;
  58 }
  59
  60 static u32 mlx4_en_get_tso(struct net_device *dev)
  61 {
  62         return (dev->features & NETIF_F_TSO) != 0;
  63 }
  64
  65 static int mlx4_en_set_tso(struct net_device *dev, u32 data)
  66 {
  67         struct mlx4_en_priv *priv = netdev_priv(dev);
  68
  69         if (data) {
  70                 if (!priv->mdev->LSO_support)
  71                         return -EPERM;
  72                 dev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
  73         } else
  74                 dev->features &= ~(NETIF_F_TSO | NETIF_F_TSO6);
  75         return 0;
  76 }
  77
  78 static u32 mlx4_en_get_rx_csum(struct net_device *dev)
  79 {
  80         struct mlx4_en_priv *priv = netdev_priv(dev);
  81         return priv->rx_csum;
  82 }
  83
  84 static int mlx4_en_set_rx_csum(struct net_device *dev, u32 data)
  85 {
  86         struct mlx4_en_priv *priv = netdev_priv(dev);
  87         priv->rx_csum = (data != 0);
  88         return 0;
  89 }
  90
  91 static const char main_strings[][ETH_GSTRING_LEN] = {
  92         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
  93         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
  94         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
  95         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
  96         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
  97         "tx_heartbeat_errors", "tx_window_errors",
  98
  99         /* port statistics */
 100         "tso_packets",
 101         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 102         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
 103
 104         /* packet statistics */
 105         "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
 106         "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
 107         "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
 108         "tx_prio_6", "tx_prio_7",
 109 };
 110 #define NUM_MAIN_STATS  21
 111 #define NUM_ALL_STATS   (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
 112
 113 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 114         "Interupt Test",
 115         "Link Test",
 116         "Speed Test",
 117         "Register Test",
 118         "Loopback Test",
 119 };
 120
 121 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 122 {
 123         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 124 }
 125
 126 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 127 {
 128         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 129 }
 130
 131 static void mlx4_en_get_wol(struct net_device *netdev,
 132                             struct ethtool_wolinfo *wol)
 133 {
 134         struct mlx4_en_priv *priv = netdev_priv(netdev);
 135         int err = 0;
 136         u64 config = 0;
 137
 138         if (!priv->mdev->dev->caps.wol) {
 139                 wol->supported = 0;
 140                 wol->wolopts = 0;
 141                 return;
 142         }
 143
 144         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 145         if (err) {
 146                 en_err(priv, "Failed to get WoL information\n");
 147                 return;
 148         }
 149
 150         if (config & MLX4_EN_WOL_MAGIC)
 151                 wol->supported = WAKE_MAGIC;
 152         else
 153                 wol->supported = 0;
 154
 155         if (config & MLX4_EN_WOL_ENABLED)
 156                 wol->wolopts = WAKE_MAGIC;
 157         else
 158                 wol->wolopts = 0;
 159 }
 160
 161 static int mlx4_en_set_wol(struct net_device *netdev,
 162                             struct ethtool_wolinfo *wol)
 163 {
 164         struct mlx4_en_priv *priv = netdev_priv(netdev);
 165         u64 config = 0;
 166         int err = 0;
 167
 168         if (!priv->mdev->dev->caps.wol)
 169                 return -EOPNOTSUPP;
 170
 171         if (wol->supported & ~WAKE_MAGIC)
 172                 return -EINVAL;
 173
 174         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 175         if (err) {
 176                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 177                 return err;
 178         }
 179
 180         if (wol->wolopts & WAKE_MAGIC) {
 181                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 182                                 MLX4_EN_WOL_MAGIC;
 183         } else {
 184                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 185                 config |= MLX4_EN_WOL_DO_MODIFY;
 186         }
 187
 188         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 189         if (err)
 190                 en_err(priv, "Failed to set WoL information\n");
 191
 192         return err;
 193 }
 194
 195 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 196 {
 197         struct mlx4_en_priv *priv = netdev_priv(dev);
 198
 199         switch (sset) {
 200         case ETH_SS_STATS:
 201                 return NUM_ALL_STATS +
 202                         (priv->tx_ring_num + priv->rx_ring_num) * 2;
 203         case ETH_SS_TEST:
 204                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.loopback_support) * 2;
 205         default:
 206                 return -EOPNOTSUPP;
 207         }
 208 }
 209
 210 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 211                 struct ethtool_stats *stats, uint64_t *data)
 212 {
 213         struct mlx4_en_priv *priv = netdev_priv(dev);
 214         int index = 0;
 215         int i;
 216
 217         spin_lock_bh(&priv->stats_lock);
 218
 219         for (i = 0; i < NUM_MAIN_STATS; i++)
 220                 data[index++] = ((unsigned long *) &priv->stats)[i];
 221         for (i = 0; i < NUM_PORT_STATS; i++)
 222                 data[index++] = ((unsigned long *) &priv->port_stats)[i];
 223         for (i = 0; i < priv->tx_ring_num; i++) {
 224                 data[index++] = priv->tx_ring[i].packets;
 225                 data[index++] = priv->tx_ring[i].bytes;
 226         }
 227         for (i = 0; i < priv->rx_ring_num; i++) {
 228                 data[index++] = priv->rx_ring[i].packets;
 229                 data[index++] = priv->rx_ring[i].bytes;
 230         }
 231         for (i = 0; i < NUM_PKT_STATS; i++)
 232                 data[index++] = ((unsigned long *) &priv->pkstats)[i];
 233         spin_unlock_bh(&priv->stats_lock);
 234
 235 }
 236
 237 static void mlx4_en_self_test(struct net_device *dev,
 238                               struct ethtool_test *etest, u64 *buf)
 239 {
 240         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 241 }
 242
 243 static void mlx4_en_get_strings(struct net_device *dev,
 244                                 uint32_t stringset, uint8_t *data)
 245 {
 246         struct mlx4_en_priv *priv = netdev_priv(dev);
 247         int index = 0;
 248         int i;
 249
 250         switch (stringset) {
 251         case ETH_SS_TEST:
 252                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 253                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 254                 if (priv->mdev->dev->caps.loopback_support)
 255                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 256                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 257                 break;
 258
 259         case ETH_SS_STATS:
 260                 /* Add main counters */
 261                 for (i = 0; i < NUM_MAIN_STATS; i++)
 262                         strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
 263                 for (i = 0; i< NUM_PORT_STATS; i++)
 264                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 265                         main_strings[i + NUM_MAIN_STATS]);
 266                 for (i = 0; i < priv->tx_ring_num; i++) {
 267                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 268                                 "tx%d_packets", i);
 269                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 270                                 "tx%d_bytes", i);
 271                 }
 272                 for (i = 0; i < priv->rx_ring_num; i++) {
 273                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 274                                 "rx%d_packets", i);
 275                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 276                                 "rx%d_bytes", i);
 277                 }
 278                 for (i = 0; i< NUM_PKT_STATS; i++)
 279                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 280                         main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
 281                 break;
 282         }
 283 }
 284
 285 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 286 {
 287         struct mlx4_en_priv *priv = netdev_priv(dev);
 288         int trans_type;
 289
 290         cmd->autoneg = AUTONEG_DISABLE;
 291         cmd->supported = SUPPORTED_10000baseT_Full;
 292         cmd->advertising = ADVERTISED_10000baseT_Full;
 293
 294         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 295                 return -ENOMEM;
 296
 297         trans_type = priv->port_state.transciver;
 298         if (netif_carrier_ok(dev)) {
 299                 cmd->speed = priv->port_state.link_speed;
 300                 cmd->duplex = DUPLEX_FULL;
 301         } else {
 302                 cmd->speed = -1;
 303                 cmd->duplex = -1;
 304         }
 305
 306         if (trans_type > 0 && trans_type <= 0xC) {
 307                 cmd->port = PORT_FIBRE;
 308                 cmd->transceiver = XCVR_EXTERNAL;
 309                 cmd->supported |= SUPPORTED_FIBRE;
 310                 cmd->advertising |= ADVERTISED_FIBRE;
 311         } else if (trans_type == 0x80 || trans_type == 0) {
 312                 cmd->port = PORT_TP;
 313                 cmd->transceiver = XCVR_INTERNAL;
 314                 cmd->supported |= SUPPORTED_TP;
 315                 cmd->advertising |= ADVERTISED_TP;
 316         } else  {
 317                 cmd->port = -1;
 318                 cmd->transceiver = -1;
 319         }
 320         return 0;
 321 }
 322
 323 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 324 {
 325         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 326             (cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
 327                 return -EINVAL;
 328
 329         /* Nothing to change */
 330         return 0;
 331 }
 332
 333 static int mlx4_en_get_coalesce(struct net_device *dev,
 334                               struct ethtool_coalesce *coal)
 335 {
 336         struct mlx4_en_priv *priv = netdev_priv(dev);
 337
 338         coal->tx_coalesce_usecs = 0;
 339         coal->tx_max_coalesced_frames = 0;
 340         coal->rx_coalesce_usecs = priv->rx_usecs;
 341         coal->rx_max_coalesced_frames = priv->rx_frames;
 342
 343         coal->pkt_rate_low = priv->pkt_rate_low;
 344         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 345         coal->pkt_rate_high = priv->pkt_rate_high;
 346         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 347         coal->rate_sample_interval = priv->sample_interval;
 348         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 349         return 0;
 350 }
 351
 352 static int mlx4_en_set_coalesce(struct net_device *dev,
 353                               struct ethtool_coalesce *coal)
 354 {
 355         struct mlx4_en_priv *priv = netdev_priv(dev);
 356         int err, i;
 357
 358         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 359                            MLX4_EN_AUTO_CONF) ?
 360                                 MLX4_EN_RX_COAL_TARGET :
 361                                 coal->rx_max_coalesced_frames;
 362         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 363                           MLX4_EN_AUTO_CONF) ?
 364                                 MLX4_EN_RX_COAL_TIME :
 365                                 coal->rx_coalesce_usecs;
 366
 367         /* Set adaptive coalescing params */
 368         priv->pkt_rate_low = coal->pkt_rate_low;
 369         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 370         priv->pkt_rate_high = coal->pkt_rate_high;
 371         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 372         priv->sample_interval = coal->rate_sample_interval;
 373         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 374         priv->last_moder_time = MLX4_EN_AUTO_CONF;
 375         if (priv->adaptive_rx_coal)
 376                 return 0;
 377
 378         for (i = 0; i < priv->rx_ring_num; i++) {
 379                 priv->rx_cq[i].moder_cnt = priv->rx_frames;
 380                 priv->rx_cq[i].moder_time = priv->rx_usecs;
 381                 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 382                 if (err)
 383                         return err;
 384         }
 385         return 0;
 386 }
 387
 388 static int mlx4_en_set_pauseparam(struct net_device *dev,
 389                                 struct ethtool_pauseparam *pause)
 390 {
 391         struct mlx4_en_priv *priv = netdev_priv(dev);
 392         struct mlx4_en_dev *mdev = priv->mdev;
 393         int err;
 394
 395         priv->prof->tx_pause = pause->tx_pause != 0;
 396         priv->prof->rx_pause = pause->rx_pause != 0;
 397         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 398                                     priv->rx_skb_size + ETH_FCS_LEN,
 399                                     priv->prof->tx_pause,
 400                                     priv->prof->tx_ppp,
 401                                     priv->prof->rx_pause,
 402                                     priv->prof->rx_ppp);
 403         if (err)
 404                 en_err(priv, "Failed setting pause params\n");
 405
 406         return err;
 407 }
 408
 409 static void mlx4_en_get_pauseparam(struct net_device *dev,
 410                                  struct ethtool_pauseparam *pause)
 411 {
 412         struct mlx4_en_priv *priv = netdev_priv(dev);
 413
 414         pause->tx_pause = priv->prof->tx_pause;
 415         pause->rx_pause = priv->prof->rx_pause;
 416 }
 417
 418 static int mlx4_en_set_ringparam(struct net_device *dev,
 419                                  struct ethtool_ringparam *param)
 420 {
 421         struct mlx4_en_priv *priv = netdev_priv(dev);
 422         struct mlx4_en_dev *mdev = priv->mdev;
 423         u32 rx_size, tx_size;
 424         int port_up = 0;
 425         int err = 0;
 426
 427         if (param->rx_jumbo_pending || param->rx_mini_pending)
 428                 return -EINVAL;
 429
 430         rx_size = roundup_pow_of_two(param->rx_pending);
 431         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 432         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 433         tx_size = roundup_pow_of_two(param->tx_pending);
 434         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 435         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 436
 437         if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
 438                                         priv->rx_ring[0].size) &&
 439             tx_size == priv->tx_ring[0].size)
 440                 return 0;
 441
 442         mutex_lock(&mdev->state_lock);
 443         if (priv->port_up) {
 444                 port_up = 1;
 445                 mlx4_en_stop_port(dev);
 446         }
 447
 448         mlx4_en_free_resources(priv, true);
 449
 450         priv->prof->tx_ring_size = tx_size;
 451         priv->prof->rx_ring_size = rx_size;
 452
 453         err = mlx4_en_alloc_resources(priv);
 454         if (err) {
 455                 en_err(priv, "Failed reallocating port resources\n");
 456                 goto out;
 457         }
 458         if (port_up) {
 459                 err = mlx4_en_start_port(dev);
 460                 if (err)
 461                         en_err(priv, "Failed starting port\n");
 462         }
 463
 464 out:
 465         mutex_unlock(&mdev->state_lock);
 466         return err;
 467 }
 468
 469 static void mlx4_en_get_ringparam(struct net_device *dev,
 470                                   struct ethtool_ringparam *param)
 471 {
 472         struct mlx4_en_priv *priv = netdev_priv(dev);
 473
 474         memset(param, 0, sizeof(*param));
 475         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 476         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 477         param->rx_pending = priv->port_up ?
 478                 priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
 479         param->tx_pending = priv->tx_ring[0].size;
 480 }
 481
 482 const struct ethtool_ops mlx4_en_ethtool_ops = {
 483         .get_drvinfo = mlx4_en_get_drvinfo,
 484         .get_settings = mlx4_en_get_settings,
 485         .set_settings = mlx4_en_set_settings,
 486 #ifdef NETIF_F_TSO
 487         .get_tso = mlx4_en_get_tso,
 488         .set_tso = mlx4_en_set_tso,
 489 #endif
 490         .get_sg = ethtool_op_get_sg,
 491         .set_sg = ethtool_op_set_sg,
 492         .get_link = ethtool_op_get_link,
 493         .get_rx_csum = mlx4_en_get_rx_csum,
 494         .set_rx_csum = mlx4_en_set_rx_csum,
 495         .get_tx_csum = ethtool_op_get_tx_csum,
 496         .set_tx_csum = ethtool_op_set_tx_ipv6_csum,
 497         .get_strings = mlx4_en_get_strings,
 498         .get_sset_count = mlx4_en_get_sset_count,
 499         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
 500         .self_test = mlx4_en_self_test,
 501         .get_wol = mlx4_en_get_wol,
 502         .set_wol = mlx4_en_set_wol,
 503         .get_msglevel = mlx4_en_get_msglevel,
 504         .set_msglevel = mlx4_en_set_msglevel,
 505         .get_coalesce = mlx4_en_get_coalesce,
 506         .set_coalesce = mlx4_en_set_coalesce,
 507         .get_pauseparam = mlx4_en_get_pauseparam,
 508         .set_pauseparam = mlx4_en_set_pauseparam,
 509         .get_ringparam = mlx4_en_get_ringparam,
 510         .set_ringparam = mlx4_en_set_ringparam,
 511         .get_flags = ethtool_op_get_flags,
 512 };
 513
 514
 515
 516
 517