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         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 const char main_strings[][ETH_GSTRING_LEN] = {
  61         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
  62         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
  63         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
  64         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
  65         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
  66         "tx_heartbeat_errors", "tx_window_errors",
  67
  68         /* port statistics */
  69         "tso_packets",
  70         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
  71         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
  72
  73         /* packet statistics */
  74         "broadcast", "rx_prio_0", "rx_prio_1", "rx_prio_2", "rx_prio_3",
  75         "rx_prio_4", "rx_prio_5", "rx_prio_6", "rx_prio_7", "tx_prio_0",
  76         "tx_prio_1", "tx_prio_2", "tx_prio_3", "tx_prio_4", "tx_prio_5",
  77         "tx_prio_6", "tx_prio_7",
  78 };
  79 #define NUM_MAIN_STATS  21
  80 #define NUM_ALL_STATS   (NUM_MAIN_STATS + NUM_PORT_STATS + NUM_PKT_STATS + NUM_PERF_STATS)
  81
  82 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
  83         "Interupt Test",
  84         "Link Test",
  85         "Speed Test",
  86         "Register Test",
  87         "Loopback Test",
  88 };
  89
  90 static u32 mlx4_en_get_msglevel(struct net_device *dev)
  91 {
  92         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
  93 }
  94
  95 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
  96 {
  97         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
  98 }
  99
 100 static void mlx4_en_get_wol(struct net_device *netdev,
 101                             struct ethtool_wolinfo *wol)
 102 {
 103         struct mlx4_en_priv *priv = netdev_priv(netdev);
 104         int err = 0;
 105         u64 config = 0;
 106
 107         if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL)) {
 108                 wol->supported = 0;
 109                 wol->wolopts = 0;
 110                 return;
 111         }
 112
 113         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 114         if (err) {
 115                 en_err(priv, "Failed to get WoL information\n");
 116                 return;
 117         }
 118
 119         if (config & MLX4_EN_WOL_MAGIC)
 120                 wol->supported = WAKE_MAGIC;
 121         else
 122                 wol->supported = 0;
 123
 124         if (config & MLX4_EN_WOL_ENABLED)
 125                 wol->wolopts = WAKE_MAGIC;
 126         else
 127                 wol->wolopts = 0;
 128 }
 129
 130 static int mlx4_en_set_wol(struct net_device *netdev,
 131                             struct ethtool_wolinfo *wol)
 132 {
 133         struct mlx4_en_priv *priv = netdev_priv(netdev);
 134         u64 config = 0;
 135         int err = 0;
 136
 137         if (!(priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_WOL))
 138                 return -EOPNOTSUPP;
 139
 140         if (wol->supported & ~WAKE_MAGIC)
 141                 return -EINVAL;
 142
 143         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 144         if (err) {
 145                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 146                 return err;
 147         }
 148
 149         if (wol->wolopts & WAKE_MAGIC) {
 150                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 151                                 MLX4_EN_WOL_MAGIC;
 152         } else {
 153                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 154                 config |= MLX4_EN_WOL_DO_MODIFY;
 155         }
 156
 157         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 158         if (err)
 159                 en_err(priv, "Failed to set WoL information\n");
 160
 161         return err;
 162 }
 163
 164 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 165 {
 166         struct mlx4_en_priv *priv = netdev_priv(dev);
 167
 168         switch (sset) {
 169         case ETH_SS_STATS:
 170                 return NUM_ALL_STATS +
 171                         (priv->tx_ring_num + priv->rx_ring_num) * 2;
 172         case ETH_SS_TEST:
 173                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 174                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 175         default:
 176                 return -EOPNOTSUPP;
 177         }
 178 }
 179
 180 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 181                 struct ethtool_stats *stats, uint64_t *data)
 182 {
 183         struct mlx4_en_priv *priv = netdev_priv(dev);
 184         int index = 0;
 185         int i;
 186
 187         spin_lock_bh(&priv->stats_lock);
 188
 189         for (i = 0; i < NUM_MAIN_STATS; i++)
 190                 data[index++] = ((unsigned long *) &priv->stats)[i];
 191         for (i = 0; i < NUM_PORT_STATS; i++)
 192                 data[index++] = ((unsigned long *) &priv->port_stats)[i];
 193         for (i = 0; i < priv->tx_ring_num; i++) {
 194                 data[index++] = priv->tx_ring[i].packets;
 195                 data[index++] = priv->tx_ring[i].bytes;
 196         }
 197         for (i = 0; i < priv->rx_ring_num; i++) {
 198                 data[index++] = priv->rx_ring[i].packets;
 199                 data[index++] = priv->rx_ring[i].bytes;
 200         }
 201         for (i = 0; i < NUM_PKT_STATS; i++)
 202                 data[index++] = ((unsigned long *) &priv->pkstats)[i];
 203         spin_unlock_bh(&priv->stats_lock);
 204
 205 }
 206
 207 static void mlx4_en_self_test(struct net_device *dev,
 208                               struct ethtool_test *etest, u64 *buf)
 209 {
 210         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 211 }
 212
 213 static void mlx4_en_get_strings(struct net_device *dev,
 214                                 uint32_t stringset, uint8_t *data)
 215 {
 216         struct mlx4_en_priv *priv = netdev_priv(dev);
 217         int index = 0;
 218         int i;
 219
 220         switch (stringset) {
 221         case ETH_SS_TEST:
 222                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 223                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 224                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 225                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 226                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 227                 break;
 228
 229         case ETH_SS_STATS:
 230                 /* Add main counters */
 231                 for (i = 0; i < NUM_MAIN_STATS; i++)
 232                         strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
 233                 for (i = 0; i< NUM_PORT_STATS; i++)
 234                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 235                         main_strings[i + NUM_MAIN_STATS]);
 236                 for (i = 0; i < priv->tx_ring_num; i++) {
 237                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 238                                 "tx%d_packets", i);
 239                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 240                                 "tx%d_bytes", i);
 241                 }
 242                 for (i = 0; i < priv->rx_ring_num; i++) {
 243                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 244                                 "rx%d_packets", i);
 245                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 246                                 "rx%d_bytes", i);
 247                 }
 248                 for (i = 0; i< NUM_PKT_STATS; i++)
 249                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 250                         main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
 251                 break;
 252         }
 253 }
 254
 255 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 256 {
 257         struct mlx4_en_priv *priv = netdev_priv(dev);
 258         int trans_type;
 259
 260         cmd->autoneg = AUTONEG_DISABLE;
 261         cmd->supported = SUPPORTED_10000baseT_Full;
 262         cmd->advertising = ADVERTISED_10000baseT_Full;
 263
 264         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 265                 return -ENOMEM;
 266
 267         trans_type = priv->port_state.transciver;
 268         if (netif_carrier_ok(dev)) {
 269                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 270                 cmd->duplex = DUPLEX_FULL;
 271         } else {
 272                 ethtool_cmd_speed_set(cmd, -1);
 273                 cmd->duplex = -1;
 274         }
 275
 276         if (trans_type > 0 && trans_type <= 0xC) {
 277                 cmd->port = PORT_FIBRE;
 278                 cmd->transceiver = XCVR_EXTERNAL;
 279                 cmd->supported |= SUPPORTED_FIBRE;
 280                 cmd->advertising |= ADVERTISED_FIBRE;
 281         } else if (trans_type == 0x80 || trans_type == 0) {
 282                 cmd->port = PORT_TP;
 283                 cmd->transceiver = XCVR_INTERNAL;
 284                 cmd->supported |= SUPPORTED_TP;
 285                 cmd->advertising |= ADVERTISED_TP;
 286         } else  {
 287                 cmd->port = -1;
 288                 cmd->transceiver = -1;
 289         }
 290         return 0;
 291 }
 292
 293 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 294 {
 295         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 296             (ethtool_cmd_speed(cmd) != SPEED_10000) ||
 297             (cmd->duplex != DUPLEX_FULL))
 298                 return -EINVAL;
 299
 300         /* Nothing to change */
 301         return 0;
 302 }
 303
 304 static int mlx4_en_get_coalesce(struct net_device *dev,
 305                               struct ethtool_coalesce *coal)
 306 {
 307         struct mlx4_en_priv *priv = netdev_priv(dev);
 308
 309         coal->tx_coalesce_usecs = 0;
 310         coal->tx_max_coalesced_frames = 0;
 311         coal->rx_coalesce_usecs = priv->rx_usecs;
 312         coal->rx_max_coalesced_frames = priv->rx_frames;
 313
 314         coal->pkt_rate_low = priv->pkt_rate_low;
 315         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 316         coal->pkt_rate_high = priv->pkt_rate_high;
 317         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 318         coal->rate_sample_interval = priv->sample_interval;
 319         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 320         return 0;
 321 }
 322
 323 static int mlx4_en_set_coalesce(struct net_device *dev,
 324                               struct ethtool_coalesce *coal)
 325 {
 326         struct mlx4_en_priv *priv = netdev_priv(dev);
 327         int err, i;
 328
 329         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 330                            MLX4_EN_AUTO_CONF) ?
 331                                 MLX4_EN_RX_COAL_TARGET :
 332                                 coal->rx_max_coalesced_frames;
 333         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 334                           MLX4_EN_AUTO_CONF) ?
 335                                 MLX4_EN_RX_COAL_TIME :
 336                                 coal->rx_coalesce_usecs;
 337
 338         /* Set adaptive coalescing params */
 339         priv->pkt_rate_low = coal->pkt_rate_low;
 340         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 341         priv->pkt_rate_high = coal->pkt_rate_high;
 342         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 343         priv->sample_interval = coal->rate_sample_interval;
 344         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 345         priv->last_moder_time = MLX4_EN_AUTO_CONF;
 346         if (priv->adaptive_rx_coal)
 347                 return 0;
 348
 349         for (i = 0; i < priv->rx_ring_num; i++) {
 350                 priv->rx_cq[i].moder_cnt = priv->rx_frames;
 351                 priv->rx_cq[i].moder_time = priv->rx_usecs;
 352                 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 353                 if (err)
 354                         return err;
 355         }
 356         return 0;
 357 }
 358
 359 static int mlx4_en_set_pauseparam(struct net_device *dev,
 360                                 struct ethtool_pauseparam *pause)
 361 {
 362         struct mlx4_en_priv *priv = netdev_priv(dev);
 363         struct mlx4_en_dev *mdev = priv->mdev;
 364         int err;
 365
 366         priv->prof->tx_pause = pause->tx_pause != 0;
 367         priv->prof->rx_pause = pause->rx_pause != 0;
 368         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 369                                     priv->rx_skb_size + ETH_FCS_LEN,
 370                                     priv->prof->tx_pause,
 371                                     priv->prof->tx_ppp,
 372                                     priv->prof->rx_pause,
 373                                     priv->prof->rx_ppp);
 374         if (err)
 375                 en_err(priv, "Failed setting pause params\n");
 376
 377         return err;
 378 }
 379
 380 static void mlx4_en_get_pauseparam(struct net_device *dev,
 381                                  struct ethtool_pauseparam *pause)
 382 {
 383         struct mlx4_en_priv *priv = netdev_priv(dev);
 384
 385         pause->tx_pause = priv->prof->tx_pause;
 386         pause->rx_pause = priv->prof->rx_pause;
 387 }
 388
 389 static int mlx4_en_set_ringparam(struct net_device *dev,
 390                                  struct ethtool_ringparam *param)
 391 {
 392         struct mlx4_en_priv *priv = netdev_priv(dev);
 393         struct mlx4_en_dev *mdev = priv->mdev;
 394         u32 rx_size, tx_size;
 395         int port_up = 0;
 396         int err = 0;
 397
 398         if (param->rx_jumbo_pending || param->rx_mini_pending)
 399                 return -EINVAL;
 400
 401         rx_size = roundup_pow_of_two(param->rx_pending);
 402         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 403         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 404         tx_size = roundup_pow_of_two(param->tx_pending);
 405         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 406         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 407
 408         if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
 409                                         priv->rx_ring[0].size) &&
 410             tx_size == priv->tx_ring[0].size)
 411                 return 0;
 412
 413         mutex_lock(&mdev->state_lock);
 414         if (priv->port_up) {
 415                 port_up = 1;
 416                 mlx4_en_stop_port(dev);
 417         }
 418
 419         mlx4_en_free_resources(priv, true);
 420
 421         priv->prof->tx_ring_size = tx_size;
 422         priv->prof->rx_ring_size = rx_size;
 423
 424         err = mlx4_en_alloc_resources(priv);
 425         if (err) {
 426                 en_err(priv, "Failed reallocating port resources\n");
 427                 goto out;
 428         }
 429         if (port_up) {
 430                 err = mlx4_en_start_port(dev);
 431                 if (err)
 432                         en_err(priv, "Failed starting port\n");
 433         }
 434
 435 out:
 436         mutex_unlock(&mdev->state_lock);
 437         return err;
 438 }
 439
 440 static void mlx4_en_get_ringparam(struct net_device *dev,
 441                                   struct ethtool_ringparam *param)
 442 {
 443         struct mlx4_en_priv *priv = netdev_priv(dev);
 444
 445         memset(param, 0, sizeof(*param));
 446         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 447         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 448         param->rx_pending = priv->port_up ?
 449                 priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
 450         param->tx_pending = priv->tx_ring[0].size;
 451 }
 452
 453 const struct ethtool_ops mlx4_en_ethtool_ops = {
 454         .get_drvinfo = mlx4_en_get_drvinfo,
 455         .get_settings = mlx4_en_get_settings,
 456         .set_settings = mlx4_en_set_settings,
 457         .get_link = ethtool_op_get_link,
 458         .get_strings = mlx4_en_get_strings,
 459         .get_sset_count = mlx4_en_get_sset_count,
 460         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
 461         .self_test = mlx4_en_self_test,
 462         .get_wol = mlx4_en_get_wol,
 463         .set_wol = mlx4_en_set_wol,
 464         .get_msglevel = mlx4_en_get_msglevel,
 465         .set_msglevel = mlx4_en_set_msglevel,
 466         .get_coalesce = mlx4_en_get_coalesce,
 467         .set_coalesce = mlx4_en_set_coalesce,
 468         .get_pauseparam = mlx4_en_get_pauseparam,
 469         .set_pauseparam = mlx4_en_set_pauseparam,
 470         .get_ringparam = mlx4_en_get_ringparam,
 471         .set_ringparam = mlx4_en_set_ringparam,
 472 };
 473
 474
 475
 476
 477