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         sprintf(drvinfo->driver, DRV_NAME " (%s)", mdev->dev->board_id);
  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         wol->supported = 0;
 135         wol->wolopts = 0;
 136 }
 137
 138 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 139 {
 140         struct mlx4_en_priv *priv = netdev_priv(dev);
 141
 142         switch (sset) {
 143         case ETH_SS_STATS:
 144                 return NUM_ALL_STATS +
 145                         (priv->tx_ring_num + priv->rx_ring_num) * 2;
 146         case ETH_SS_TEST:
 147                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.loopback_support) * 2;
 148         default:
 149                 return -EOPNOTSUPP;
 150         }
 151 }
 152
 153 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 154                 struct ethtool_stats *stats, uint64_t *data)
 155 {
 156         struct mlx4_en_priv *priv = netdev_priv(dev);
 157         int index = 0;
 158         int i;
 159
 160         spin_lock_bh(&priv->stats_lock);
 161
 162         for (i = 0; i < NUM_MAIN_STATS; i++)
 163                 data[index++] = ((unsigned long *) &priv->stats)[i];
 164         for (i = 0; i < NUM_PORT_STATS; i++)
 165                 data[index++] = ((unsigned long *) &priv->port_stats)[i];
 166         for (i = 0; i < priv->tx_ring_num; i++) {
 167                 data[index++] = priv->tx_ring[i].packets;
 168                 data[index++] = priv->tx_ring[i].bytes;
 169         }
 170         for (i = 0; i < priv->rx_ring_num; i++) {
 171                 data[index++] = priv->rx_ring[i].packets;
 172                 data[index++] = priv->rx_ring[i].bytes;
 173         }
 174         for (i = 0; i < NUM_PKT_STATS; i++)
 175                 data[index++] = ((unsigned long *) &priv->pkstats)[i];
 176         spin_unlock_bh(&priv->stats_lock);
 177
 178 }
 179
 180 static void mlx4_en_self_test(struct net_device *dev,
 181                               struct ethtool_test *etest, u64 *buf)
 182 {
 183         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 184 }
 185
 186 static void mlx4_en_get_strings(struct net_device *dev,
 187                                 uint32_t stringset, uint8_t *data)
 188 {
 189         struct mlx4_en_priv *priv = netdev_priv(dev);
 190         int index = 0;
 191         int i;
 192
 193         switch (stringset) {
 194         case ETH_SS_TEST:
 195                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 196                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 197                 if (priv->mdev->dev->caps.loopback_support)
 198                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 199                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 200                 break;
 201
 202         case ETH_SS_STATS:
 203                 /* Add main counters */
 204                 for (i = 0; i < NUM_MAIN_STATS; i++)
 205                         strcpy(data + (index++) * ETH_GSTRING_LEN, main_strings[i]);
 206                 for (i = 0; i< NUM_PORT_STATS; i++)
 207                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 208                         main_strings[i + NUM_MAIN_STATS]);
 209                 for (i = 0; i < priv->tx_ring_num; i++) {
 210                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 211                                 "tx%d_packets", i);
 212                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 213                                 "tx%d_bytes", i);
 214                 }
 215                 for (i = 0; i < priv->rx_ring_num; i++) {
 216                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 217                                 "rx%d_packets", i);
 218                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 219                                 "rx%d_bytes", i);
 220                 }
 221                 for (i = 0; i< NUM_PKT_STATS; i++)
 222                         strcpy(data + (index++) * ETH_GSTRING_LEN,
 223                         main_strings[i + NUM_MAIN_STATS + NUM_PORT_STATS]);
 224                 break;
 225         }
 226 }
 227
 228 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 229 {
 230         struct mlx4_en_priv *priv = netdev_priv(dev);
 231         int trans_type;
 232
 233         cmd->autoneg = AUTONEG_DISABLE;
 234         cmd->supported = SUPPORTED_10000baseT_Full;
 235         cmd->advertising = ADVERTISED_10000baseT_Full;
 236
 237         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 238                 return -ENOMEM;
 239
 240         trans_type = priv->port_state.transciver;
 241         if (netif_carrier_ok(dev)) {
 242                 cmd->speed = priv->port_state.link_speed;
 243                 cmd->duplex = DUPLEX_FULL;
 244         } else {
 245                 cmd->speed = -1;
 246                 cmd->duplex = -1;
 247         }
 248
 249         if (trans_type > 0 && trans_type <= 0xC) {
 250                 cmd->port = PORT_FIBRE;
 251                 cmd->transceiver = XCVR_EXTERNAL;
 252                 cmd->supported |= SUPPORTED_FIBRE;
 253                 cmd->advertising |= ADVERTISED_FIBRE;
 254         } else if (trans_type == 0x80 || trans_type == 0) {
 255                 cmd->port = PORT_TP;
 256                 cmd->transceiver = XCVR_INTERNAL;
 257                 cmd->supported |= SUPPORTED_TP;
 258                 cmd->advertising |= ADVERTISED_TP;
 259         } else  {
 260                 cmd->port = -1;
 261                 cmd->transceiver = -1;
 262         }
 263         return 0;
 264 }
 265
 266 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 267 {
 268         if ((cmd->autoneg == AUTONEG_ENABLE) ||
 269             (cmd->speed != SPEED_10000) || (cmd->duplex != DUPLEX_FULL))
 270                 return -EINVAL;
 271
 272         /* Nothing to change */
 273         return 0;
 274 }
 275
 276 static int mlx4_en_get_coalesce(struct net_device *dev,
 277                               struct ethtool_coalesce *coal)
 278 {
 279         struct mlx4_en_priv *priv = netdev_priv(dev);
 280
 281         coal->tx_coalesce_usecs = 0;
 282         coal->tx_max_coalesced_frames = 0;
 283         coal->rx_coalesce_usecs = priv->rx_usecs;
 284         coal->rx_max_coalesced_frames = priv->rx_frames;
 285
 286         coal->pkt_rate_low = priv->pkt_rate_low;
 287         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 288         coal->pkt_rate_high = priv->pkt_rate_high;
 289         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 290         coal->rate_sample_interval = priv->sample_interval;
 291         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 292         return 0;
 293 }
 294
 295 static int mlx4_en_set_coalesce(struct net_device *dev,
 296                               struct ethtool_coalesce *coal)
 297 {
 298         struct mlx4_en_priv *priv = netdev_priv(dev);
 299         int err, i;
 300
 301         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 302                            MLX4_EN_AUTO_CONF) ?
 303                                 MLX4_EN_RX_COAL_TARGET :
 304                                 coal->rx_max_coalesced_frames;
 305         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 306                           MLX4_EN_AUTO_CONF) ?
 307                                 MLX4_EN_RX_COAL_TIME :
 308                                 coal->rx_coalesce_usecs;
 309
 310         /* Set adaptive coalescing params */
 311         priv->pkt_rate_low = coal->pkt_rate_low;
 312         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 313         priv->pkt_rate_high = coal->pkt_rate_high;
 314         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 315         priv->sample_interval = coal->rate_sample_interval;
 316         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 317         priv->last_moder_time = MLX4_EN_AUTO_CONF;
 318         if (priv->adaptive_rx_coal)
 319                 return 0;
 320
 321         for (i = 0; i < priv->rx_ring_num; i++) {
 322                 priv->rx_cq[i].moder_cnt = priv->rx_frames;
 323                 priv->rx_cq[i].moder_time = priv->rx_usecs;
 324                 err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
 325                 if (err)
 326                         return err;
 327         }
 328         return 0;
 329 }
 330
 331 static int mlx4_en_set_pauseparam(struct net_device *dev,
 332                                 struct ethtool_pauseparam *pause)
 333 {
 334         struct mlx4_en_priv *priv = netdev_priv(dev);
 335         struct mlx4_en_dev *mdev = priv->mdev;
 336         int err;
 337
 338         priv->prof->tx_pause = pause->tx_pause != 0;
 339         priv->prof->rx_pause = pause->rx_pause != 0;
 340         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 341                                     priv->rx_skb_size + ETH_FCS_LEN,
 342                                     priv->prof->tx_pause,
 343                                     priv->prof->tx_ppp,
 344                                     priv->prof->rx_pause,
 345                                     priv->prof->rx_ppp);
 346         if (err)
 347                 en_err(priv, "Failed setting pause params\n");
 348
 349         return err;
 350 }
 351
 352 static void mlx4_en_get_pauseparam(struct net_device *dev,
 353                                  struct ethtool_pauseparam *pause)
 354 {
 355         struct mlx4_en_priv *priv = netdev_priv(dev);
 356
 357         pause->tx_pause = priv->prof->tx_pause;
 358         pause->rx_pause = priv->prof->rx_pause;
 359 }
 360
 361 static int mlx4_en_set_ringparam(struct net_device *dev,
 362                                  struct ethtool_ringparam *param)
 363 {
 364         struct mlx4_en_priv *priv = netdev_priv(dev);
 365         struct mlx4_en_dev *mdev = priv->mdev;
 366         u32 rx_size, tx_size;
 367         int port_up = 0;
 368         int err = 0;
 369
 370         if (param->rx_jumbo_pending || param->rx_mini_pending)
 371                 return -EINVAL;
 372
 373         rx_size = roundup_pow_of_two(param->rx_pending);
 374         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 375         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 376         tx_size = roundup_pow_of_two(param->tx_pending);
 377         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 378         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 379
 380         if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
 381                                         priv->rx_ring[0].size) &&
 382             tx_size == priv->tx_ring[0].size)
 383                 return 0;
 384
 385         mutex_lock(&mdev->state_lock);
 386         if (priv->port_up) {
 387                 port_up = 1;
 388                 mlx4_en_stop_port(dev);
 389         }
 390
 391         mlx4_en_free_resources(priv);
 392
 393         priv->prof->tx_ring_size = tx_size;
 394         priv->prof->rx_ring_size = rx_size;
 395
 396         err = mlx4_en_alloc_resources(priv);
 397         if (err) {
 398                 en_err(priv, "Failed reallocating port resources\n");
 399                 goto out;
 400         }
 401         if (port_up) {
 402                 err = mlx4_en_start_port(dev);
 403                 if (err)
 404                         en_err(priv, "Failed starting port\n");
 405         }
 406
 407 out:
 408         mutex_unlock(&mdev->state_lock);
 409         return err;
 410 }
 411
 412 static void mlx4_en_get_ringparam(struct net_device *dev,
 413                                   struct ethtool_ringparam *param)
 414 {
 415         struct mlx4_en_priv *priv = netdev_priv(dev);
 416
 417         memset(param, 0, sizeof(*param));
 418         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 419         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 420         param->rx_pending = priv->port_up ?
 421                 priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
 422         param->tx_pending = priv->tx_ring[0].size;
 423 }
 424
 425 const struct ethtool_ops mlx4_en_ethtool_ops = {
 426         .get_drvinfo = mlx4_en_get_drvinfo,
 427         .get_settings = mlx4_en_get_settings,
 428         .set_settings = mlx4_en_set_settings,
 429 #ifdef NETIF_F_TSO
 430         .get_tso = mlx4_en_get_tso,
 431         .set_tso = mlx4_en_set_tso,
 432 #endif
 433         .get_sg = ethtool_op_get_sg,
 434         .set_sg = ethtool_op_set_sg,
 435         .get_link = ethtool_op_get_link,
 436         .get_rx_csum = mlx4_en_get_rx_csum,
 437         .set_rx_csum = mlx4_en_set_rx_csum,
 438         .get_tx_csum = ethtool_op_get_tx_csum,
 439         .set_tx_csum = ethtool_op_set_tx_ipv6_csum,
 440         .get_strings = mlx4_en_get_strings,
 441         .get_sset_count = mlx4_en_get_sset_count,
 442         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
 443         .self_test = mlx4_en_self_test,
 444         .get_wol = mlx4_en_get_wol,
 445         .get_msglevel = mlx4_en_get_msglevel,
 446         .set_msglevel = mlx4_en_set_msglevel,
 447         .get_coalesce = mlx4_en_get_coalesce,
 448         .set_coalesce = mlx4_en_set_coalesce,
 449         .get_pauseparam = mlx4_en_get_pauseparam,
 450         .set_pauseparam = mlx4_en_set_pauseparam,
 451         .get_ringparam = mlx4_en_get_ringparam,
 452         .set_ringparam = mlx4_en_set_ringparam,
 453         .get_flags = ethtool_op_get_flags,
 454 };
 455
 456
 457
 458
 459