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
  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         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  49         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  50                 sizeof(drvinfo->version));
  51         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  52                 "%d.%d.%d",
  53                 (u16) (mdev->dev->caps.fw_ver >> 32),
  54                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  55                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  56         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
  57                 sizeof(drvinfo->bus_info));
  58         drvinfo->n_stats = 0;
  59         drvinfo->regdump_len = 0;
  60         drvinfo->eedump_len = 0;
  61 }
  62
  63 static const char main_strings[][ETH_GSTRING_LEN] = {
  64         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
  65         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
  66         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
  67         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
  68         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
  69         "tx_heartbeat_errors", "tx_window_errors",
  70
  71         /* port statistics */
  72         "tso_packets",
  73         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
  74         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
  75
  76         /* packet statistics */
  77         "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
  78         "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
  79         "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
  80         "tx_prio_6", "tx_prio_7",
  81 };
  82 #define NUM_MAIN_STATS  21
  83 #define NUM_ALL_STATS   (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
  84
  85 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
  86         "Interupt Test",
  87         "Link Test",
  88         "Speed Test",
  89         "Register Test",
  90         "Loopback Test",
  91 };
  92
  93 static u32 mlx4_en_get_msglevel(struct net_device *dev)
  94 {
  95         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
  96 }
  97
  98 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
  99 {
 100         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 101 }
 102
 103 static void mlx4_en_get_wol(struct net_device *netdev,
 104                             struct ethtool_wolinfo *wol)
 105 {
 106         struct mlx4_en_priv *priv = netdev_priv(netdev);
 107         int err = 0;
 108         u64 config = 0;
 109         u64 mask;
 110
 111         if ((priv->port < 1) || (priv->port > 2)) {
 112                 en_err(priv, "Failed to get WoL information\n");
 113                 return;
 114         }
 115
 116         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 117                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 118
 119         if (!(priv->mdev->dev->caps.flags & mask)) {
 120                 wol->supported = 0;
 121                 wol->wolopts = 0;
 122                 return;
 123         }
 124
 125         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 126         if (err) {
 127                 en_err(priv, "Failed to get WoL information\n");
 128                 return;
 129         }
 130
 131         if (config & MLX4_EN_WOL_MAGIC)
 132                 wol->supported = WAKE_MAGIC;
 133         else
 134                 wol->supported = 0;
 135
 136         if (config & MLX4_EN_WOL_ENABLED)
 137                 wol->wolopts = WAKE_MAGIC;
 138         else
 139                 wol->wolopts = 0;
 140 }
 141
 142 static int mlx4_en_set_wol(struct net_device *netdev,
 143                             struct ethtool_wolinfo *wol)
 144 {
 145         struct mlx4_en_priv *priv = netdev_priv(netdev);
 146         u64 config = 0;
 147         int err = 0;
 148         u64 mask;
 149
 150         if ((priv->port < 1) || (priv->port > 2))
 151                 return -EOPNOTSUPP;
 152
 153         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 154                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 155
 156         if (!(priv->mdev->dev->caps.flags & mask))
 157                 return -EOPNOTSUPP;
 158
 159         if (wol->supported & ~WAKE_MAGIC)
 160                 return -EINVAL;
 161
 162         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 163         if (err) {
 164                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 165                 return err;
 166         }
 167
 168         if (wol->wolopts & WAKE_MAGIC) {
 169                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 170                                 MLX4_EN_WOL_MAGIC;
 171         } else {
 172                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 173                 config |= MLX4_EN_WOL_DO_MODIFY;
 174         }
 175
 176         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 177         if (err)
 178                 en_err(priv, "Failed to set WoL information\n");
 179
 180         return err;
 181 }
 182
 183 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 184 {
 185         struct mlx4_en_priv *priv = netdev_priv(dev);
 186
 187         switch (sset) {
 188         case ETH_SS_STATS:
 189                 return NUM_ALL_STATS +
 190                         (priv->tx_ring_num + priv->rx_ring_num) * 2;
 191         case ETH_SS_TEST:
 192                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 193                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 194         default:
 195                 return -EOPNOTSUPP;
 196         }
 197 }
 198
 199 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 200                 struct ethtool_stats *stats, uint64_t *data)
 201 {
 202         struct mlx4_en_priv *priv = netdev_priv(dev);
 203         int index = 0;
 204         int i;
 205
 206         spin_lock_bh(&priv->stats_lock);
 207
 208         for (i = 0; i < NUM_MAIN_STATS; i++)
 209                 data[index++] = ((unsigned long *) &priv->stats)[i];
 210         for (i = 0; i < NUM_PORT_STATS; i++)
 211                 data[index++] = ((unsigned long *) &priv->port_stats)[i];
 212         for (i = 0; i < priv->tx_ring_num; i++) {
 213                 data[index++] = priv->tx_ring[i].packets;
 214                 data[index++] = priv->tx_ring[i].bytes;
 215         }
 216         for (i = 0; i < priv->rx_ring_num; i++) {
 217                 data[index++] = priv->rx_ring[i].packets;
 218                 data[index++] = priv->rx_ring[i].bytes;
 219         }
 220         for (i = 0; i < NUM_PKT_STATS; i++)
 221                 data[index++] = ((unsigned long *) &priv->pkstats)[i];
 222         spin_unlock_bh(&priv->stats_lock);
 223
 224 }
 225
 226 static void mlx4_en_self_test(struct net_device *dev,
 227                               struct ethtool_test *etest, u64 *buf)
 228 {
 229         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 230 }
 231
 232 static void mlx4_en_get_strings(struct net_device *dev,
 233                                 uint32_t stringset, uint8_t *data)
 234 {
 235         struct mlx4_en_priv *priv = netdev_priv(dev);
 236         int index = 0;
 237         int i;
 238
 239         switch (stringset) {
 240         case ETH_SS_TEST:
 241                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 242                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 243                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 244                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 245                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 246                 break;
 247
 248         case ETH_SS_STATS:
 249                 /* Add main counters */
 250                 for (i = 0; i < NUM_MAIN_STATS; i++)
 251                         strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
 252                 for (i = 0; i< NUM_PORT_STATS; i++)
 253                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 254                         main_strings[i + NUM_MAIN_STATS]);
 255                 for (i = 0; i < priv->tx_ring_num; i++) {
 256                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 257                                 "tx%d_packets", i);
 258                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 259                                 "tx%d_bytes", i);
 260                 }
 261                 for (i = 0; i < priv->rx_ring_num; i++) {
 262                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 263                                 "rx%d_packets", i);
 264                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 265                                 "rx%d_bytes", i);
 266                 }
 267                 for (i = 0; i< NUM_PKT_STATS; i++)
 268                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 269                         main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
 270                 break;
 271         }
 272 }
 273
 274 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 275 {
 276         struct mlx4_en_priv *priv = netdev_priv(dev);
 277         int trans_type;
 278
 279         cmd->autoneg = AUTONEG_DISABLE;
 280         cmd->supported = SUPPORTED_10000baseT_Full;
 281         cmd->advertising = ADVERTISED_10000baseT_Full;
 282
 283         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 284                 return -ENOMEM;
 285
 286         trans_type = priv->port_state.transciver;
 287         if (netif_carrier_ok(dev)) {
 288                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 289                 cmd->duplex = DUPLEX_FULL;
 290         } else {
 291                 ethtool_cmd_speed_set(cmd, -1);
 292                 cmd->duplex = -1;
 293         }
 294
 295         if (trans_type > 0 && trans_type <= 0xC) {
 296                 cmd->port = PORT_FIBRE;
 297                 cmd->transceiver = XCVR_EXTERNAL;
 298                 cmd->supported |= SUPPORTED_FIBRE;
 299                 cmd->advertising |= ADVERTISED_FIBRE;
 300         } else if (trans_type == 0x80 || trans_type == 0) {
 301                 cmd->port = PORT_TP;
 302                 cmd->transceiver = XCVR_INTERNAL;
 303                 cmd->supported |= SUPPORTED_TP;
 304                 cmd->advertising |= ADVERTISED_TP;
 305         } else  {
 306                 cmd->port = -1;
 307                 cmd->transceiver = -1;
 308         }
 309         return 0;
 310 }
 311
 312 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 313 {
 314         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 315             (ethtool_cmd_speed(cmd) != SPEED_10000) ||
 316             (cmd->duplex != DUPLEX_FULL))
 317                 return -EINVAL;
 318
 319         /* Nothing to change */
 320         return 0;
 321 }
 322
 323 static int mlx4_en_get_coalesce(struct net_device *dev,
 324                               struct ethtool_coalesce *coal)
 325 {
 326         struct mlx4_en_priv *priv = netdev_priv(dev);
 327
 328         coal->tx_coalesce_usecs = 0;
 329         coal->tx_max_coalesced_frames = 0;
 330         coal->rx_coalesce_usecs = priv->rx_usecs;
 331         coal->rx_max_coalesced_frames = priv->rx_frames;
 332
 333         coal->pkt_rate_low = priv->pkt_rate_low;
 334         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 335         coal->pkt_rate_high = priv->pkt_rate_high;
 336         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 337         coal->rate_sample_interval = priv->sample_interval;
 338         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 339         return 0;
 340 }
 341
 342 static int mlx4_en_set_coalesce(struct net_device *dev,
 343                               struct ethtool_coalesce *coal)
 344 {
 345         struct mlx4_en_priv *priv = netdev_priv(dev);
 346         int err, i;
 347
 348         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 349                            MLX4_EN_AUTO_CONF) ?
 350                                 MLX4_EN_RX_COAL_TARGET :
 351                                 coal->rx_max_coalesced_frames;
 352         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 353                           MLX4_EN_AUTO_CONF) ?
 354                                 MLX4_EN_RX_COAL_TIME :
 355                                 coal->rx_coalesce_usecs;
 356
 357         /* Set adaptive coalescing params */
 358         priv->pkt_rate_low = coal->pkt_rate_low;
 359         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 360         priv->pkt_rate_high = coal->pkt_rate_high;
 361         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 362         priv->sample_interval = coal->rate_sample_interval;
 363         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 364         if (priv->adaptive_rx_coal)
 365                 return 0;
 366
 367         for (i = 0; i < priv->rx_ring_num; i++) {
 368                 priv->rx_cq[i].moder_cnt = priv->rx_frames;
 369                 priv->rx_cq[i].moder_time = priv->rx_usecs;
 370                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
 371                 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 372                 if (err)
 373                         return err;
 374         }
 375         return 0;
 376 }
 377
 378 static int mlx4_en_set_pauseparam(struct net_device *dev,
 379                                 struct ethtool_pauseparam *pause)
 380 {
 381         struct mlx4_en_priv *priv = netdev_priv(dev);
 382         struct mlx4_en_dev *mdev = priv->mdev;
 383         int err;
 384
 385         priv->prof->tx_pause = pause->tx_pause != 0;
 386         priv->prof->rx_pause = pause->rx_pause != 0;
 387         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 388                                     priv->rx_skb_size + ETH_FCS_LEN,
 389                                     priv->prof->tx_pause,
 390                                     priv->prof->tx_ppp,
 391                                     priv->prof->rx_pause,
 392                                     priv->prof->rx_ppp);
 393         if (err)
 394                 en_err(priv, "Failed setting pause params\n");
 395
 396         return err;
 397 }
 398
 399 static void mlx4_en_get_pauseparam(struct net_device *dev,
 400                                  struct ethtool_pauseparam *pause)
 401 {
 402         struct mlx4_en_priv *priv = netdev_priv(dev);
 403
 404         pause->tx_pause = priv->prof->tx_pause;
 405         pause->rx_pause = priv->prof->rx_pause;
 406 }
 407
 408 static int mlx4_en_set_ringparam(struct net_device *dev,
 409                                  struct ethtool_ringparam *param)
 410 {
 411         struct mlx4_en_priv *priv = netdev_priv(dev);
 412         struct mlx4_en_dev *mdev = priv->mdev;
 413         u32 rx_size, tx_size;
 414         int port_up = 0;
 415         int err = 0;
 416         int i;
 417
 418         if (param->rx_jumbo_pending || param->rx_mini_pending)
 419                 return -EINVAL;
 420
 421         rx_size = roundup_pow_of_two(param->rx_pending);
 422         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 423         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 424         tx_size = roundup_pow_of_two(param->tx_pending);
 425         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 426         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 427
 428         if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
 429                                         priv->rx_ring[0].size) &&
 430             tx_size == priv->tx_ring[0].size)
 431                 return 0;
 432
 433         mutex_lock(&mdev->state_lock);
 434         if (priv->port_up) {
 435                 port_up = 1;
 436                 mlx4_en_stop_port(dev);
 437         }
 438
 439         mlx4_en_free_resources(priv);
 440
 441         priv->prof->tx_ring_size = tx_size;
 442         priv->prof->rx_ring_size = rx_size;
 443
 444         err = mlx4_en_alloc_resources(priv);
 445         if (err) {
 446                 en_err(priv, "Failed reallocating port resources\n");
 447                 goto out;
 448         }
 449         if (port_up) {
 450                 err = mlx4_en_start_port(dev);
 451                 if (err)
 452                         en_err(priv, "Failed starting port\n");
 453         }
 454
 455         for (i = 0; i < priv->rx_ring_num; i++) {
 456                 priv->rx_cq[i].moder_cnt = priv->rx_frames;
 457                 priv->rx_cq[i].moder_time = priv->rx_usecs;
 458                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
 459                 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 460                 if (err)
 461                         goto out;
 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         .get_link = ethtool_op_get_link,
 487         .get_strings = mlx4_en_get_strings,
 488         .get_sset_count = mlx4_en_get_sset_count,
 489         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
 490         .self_test = mlx4_en_self_test,
 491         .get_wol = mlx4_en_get_wol,
 492         .set_wol = mlx4_en_set_wol,
 493         .get_msglevel = mlx4_en_get_msglevel,
 494         .set_msglevel = mlx4_en_set_msglevel,
 495         .get_coalesce = mlx4_en_get_coalesce,
 496         .set_coalesce = mlx4_en_set_coalesce,
 497         .get_pauseparam = mlx4_en_get_pauseparam,
 498         .set_pauseparam = mlx4_en_set_pauseparam,
 499         .get_ringparam = mlx4_en_get_ringparam,
 500         .set_ringparam = mlx4_en_set_ringparam,
 501 };
 502
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 504
 505
 506