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/mlx4/device.h>
  39 #include <linux/in.h>
  40 #include <net/ip.h>
  41 #include <linux/bitmap.h>
  42
  43 #include "mlx4_en.h"
  44 #include "en_port.h"
  45
  46 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
  47 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
  48 #define EN_ETHTOOL_WORD_MASK  cpu_to_be32(0xffffffff)
  49
  50 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
  51 {
  52         int i, t;
  53         int err = 0;
  54
  55         for (t = 0 ; t < MLX4_EN_NUM_TX_TYPES; t++) {
  56                 for (i = 0; i < priv->tx_ring_num[t]; i++) {
  57                         priv->tx_cq[t][i]->moder_cnt = priv->tx_frames;
  58                         priv->tx_cq[t][i]->moder_time = priv->tx_usecs;
  59                         if (priv->port_up) {
  60                                 err = mlx4_en_set_cq_moder(priv,
  61                                                            priv->tx_cq[t][i]);
  62                                 if (err)
  63                                         return err;
  64                         }
  65                 }
  66         }
  67
  68         if (priv->adaptive_rx_coal)
  69                 return 0;
  70
  71         for (i = 0; i < priv->rx_ring_num; i++) {
  72                 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
  73                 priv->rx_cq[i]->moder_time = priv->rx_usecs;
  74                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
  75                 if (priv->port_up) {
  76                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
  77                         if (err)
  78                                 return err;
  79                 }
  80         }
  81
  82         return err;
  83 }
  84
  85 static void
  86 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  87 {
  88         struct mlx4_en_priv *priv = netdev_priv(dev);
  89         struct mlx4_en_dev *mdev = priv->mdev;
  90
  91         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  92         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  93                 sizeof(drvinfo->version));
  94         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  95                 "%d.%d.%d",
  96                 (u16) (mdev->dev->caps.fw_ver >> 32),
  97                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  98                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  99         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
 100                 sizeof(drvinfo->bus_info));
 101 }
 102
 103 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 104         "blueflame",
 105         "phv-bit"
 106 };
 107
 108 static const char main_strings[][ETH_GSTRING_LEN] = {
 109         /* main statistics */
 110         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 111         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 112         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 113         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 114         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 115         "tx_heartbeat_errors", "tx_window_errors",
 116
 117         /* port statistics */
 118         "tso_packets",
 119         "xmit_more",
 120         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 121         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 122
 123         /* pf statistics */
 124         "pf_rx_packets",
 125         "pf_rx_bytes",
 126         "pf_tx_packets",
 127         "pf_tx_bytes",
 128
 129         /* priority flow control statistics rx */
 130         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 131         "rx_pause_transition_prio_0",
 132         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 133         "rx_pause_transition_prio_1",
 134         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 135         "rx_pause_transition_prio_2",
 136         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 137         "rx_pause_transition_prio_3",
 138         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 139         "rx_pause_transition_prio_4",
 140         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 141         "rx_pause_transition_prio_5",
 142         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 143         "rx_pause_transition_prio_6",
 144         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 145         "rx_pause_transition_prio_7",
 146
 147         /* flow control statistics rx */
 148         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 149
 150         /* priority flow control statistics tx */
 151         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 152         "tx_pause_transition_prio_0",
 153         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 154         "tx_pause_transition_prio_1",
 155         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 156         "tx_pause_transition_prio_2",
 157         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 158         "tx_pause_transition_prio_3",
 159         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 160         "tx_pause_transition_prio_4",
 161         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 162         "tx_pause_transition_prio_5",
 163         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 164         "tx_pause_transition_prio_6",
 165         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 166         "tx_pause_transition_prio_7",
 167
 168         /* flow control statistics tx */
 169         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 170
 171         /* packet statistics */
 172         "rx_multicast_packets",
 173         "rx_broadcast_packets",
 174         "rx_jabbers",
 175         "rx_in_range_length_error",
 176         "rx_out_range_length_error",
 177         "tx_multicast_packets",
 178         "tx_broadcast_packets",
 179         "rx_prio_0_packets", "rx_prio_0_bytes",
 180         "rx_prio_1_packets", "rx_prio_1_bytes",
 181         "rx_prio_2_packets", "rx_prio_2_bytes",
 182         "rx_prio_3_packets", "rx_prio_3_bytes",
 183         "rx_prio_4_packets", "rx_prio_4_bytes",
 184         "rx_prio_5_packets", "rx_prio_5_bytes",
 185         "rx_prio_6_packets", "rx_prio_6_bytes",
 186         "rx_prio_7_packets", "rx_prio_7_bytes",
 187         "rx_novlan_packets", "rx_novlan_bytes",
 188         "tx_prio_0_packets", "tx_prio_0_bytes",
 189         "tx_prio_1_packets", "tx_prio_1_bytes",
 190         "tx_prio_2_packets", "tx_prio_2_bytes",
 191         "tx_prio_3_packets", "tx_prio_3_bytes",
 192         "tx_prio_4_packets", "tx_prio_4_bytes",
 193         "tx_prio_5_packets", "tx_prio_5_bytes",
 194         "tx_prio_6_packets", "tx_prio_6_bytes",
 195         "tx_prio_7_packets", "tx_prio_7_bytes",
 196         "tx_novlan_packets", "tx_novlan_bytes",
 197
 198         /* xdp statistics */
 199         "rx_xdp_drop",
 200         "rx_xdp_tx",
 201         "rx_xdp_tx_full",
 202 };
 203
 204 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 205         "Interrupt Test",
 206         "Link Test",
 207         "Speed Test",
 208         "Register Test",
 209         "Loopback Test",
 210 };
 211
 212 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 213 {
 214         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 215 }
 216
 217 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 218 {
 219         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 220 }
 221
 222 static void mlx4_en_get_wol(struct net_device *netdev,
 223                             struct ethtool_wolinfo *wol)
 224 {
 225         struct mlx4_en_priv *priv = netdev_priv(netdev);
 226         int err = 0;
 227         u64 config = 0;
 228         u64 mask;
 229
 230         if ((priv->port < 1) || (priv->port > 2)) {
 231                 en_err(priv, "Failed to get WoL information\n");
 232                 return;
 233         }
 234
 235         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 236                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 237
 238         if (!(priv->mdev->dev->caps.flags & mask)) {
 239                 wol->supported = 0;
 240                 wol->wolopts = 0;
 241                 return;
 242         }
 243
 244         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 245         if (err) {
 246                 en_err(priv, "Failed to get WoL information\n");
 247                 return;
 248         }
 249
 250         if (config & MLX4_EN_WOL_MAGIC)
 251                 wol->supported = WAKE_MAGIC;
 252         else
 253                 wol->supported = 0;
 254
 255         if (config & MLX4_EN_WOL_ENABLED)
 256                 wol->wolopts = WAKE_MAGIC;
 257         else
 258                 wol->wolopts = 0;
 259 }
 260
 261 static int mlx4_en_set_wol(struct net_device *netdev,
 262                             struct ethtool_wolinfo *wol)
 263 {
 264         struct mlx4_en_priv *priv = netdev_priv(netdev);
 265         u64 config = 0;
 266         int err = 0;
 267         u64 mask;
 268
 269         if ((priv->port < 1) || (priv->port > 2))
 270                 return -EOPNOTSUPP;
 271
 272         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 273                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 274
 275         if (!(priv->mdev->dev->caps.flags & mask))
 276                 return -EOPNOTSUPP;
 277
 278         if (wol->supported & ~WAKE_MAGIC)
 279                 return -EINVAL;
 280
 281         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 282         if (err) {
 283                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 284                 return err;
 285         }
 286
 287         if (wol->wolopts & WAKE_MAGIC) {
 288                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 289                                 MLX4_EN_WOL_MAGIC;
 290         } else {
 291                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 292                 config |= MLX4_EN_WOL_DO_MODIFY;
 293         }
 294
 295         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 296         if (err)
 297                 en_err(priv, "Failed to set WoL information\n");
 298
 299         return err;
 300 }
 301
 302 struct bitmap_iterator {
 303         unsigned long *stats_bitmap;
 304         unsigned int count;
 305         unsigned int iterator;
 306         bool advance_array; /* if set, force no increments */
 307 };
 308
 309 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 310                                         unsigned long *stats_bitmap,
 311                                         int count)
 312 {
 313         h->iterator = 0;
 314         h->advance_array = !bitmap_empty(stats_bitmap, count);
 315         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 316                 : count;
 317         h->stats_bitmap = stats_bitmap;
 318 }
 319
 320 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 321 {
 322         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 323 }
 324
 325 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 326 {
 327         return h->iterator++;
 328 }
 329
 330 static inline unsigned int
 331 bitmap_iterator_count(struct bitmap_iterator *h)
 332 {
 333         return h->count;
 334 }
 335
 336 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 337 {
 338         struct mlx4_en_priv *priv = netdev_priv(dev);
 339         struct bitmap_iterator it;
 340
 341         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 342
 343         switch (sset) {
 344         case ETH_SS_STATS:
 345                 return bitmap_iterator_count(&it) +
 346                         (priv->tx_ring_num[TX] * 2) +
 347                         (priv->rx_ring_num * (3 + NUM_XDP_STATS));
 348         case ETH_SS_TEST:
 349                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 350                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 351         case ETH_SS_PRIV_FLAGS:
 352                 return ARRAY_SIZE(mlx4_en_priv_flags);
 353         default:
 354                 return -EOPNOTSUPP;
 355         }
 356 }
 357
 358 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 359                 struct ethtool_stats *stats, uint64_t *data)
 360 {
 361         struct mlx4_en_priv *priv = netdev_priv(dev);
 362         int index = 0;
 363         int i;
 364         struct bitmap_iterator it;
 365
 366         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 367
 368         spin_lock_bh(&priv->stats_lock);
 369
 370         mlx4_en_fold_software_stats(dev);
 371
 372         for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
 373                 if (bitmap_iterator_test(&it))
 374                         data[index++] = ((unsigned long *)&dev->stats)[i];
 375
 376         for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
 377                 if (bitmap_iterator_test(&it))
 378                         data[index++] = ((unsigned long *)&priv->port_stats)[i];
 379
 380         for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
 381                 if (bitmap_iterator_test(&it))
 382                         data[index++] =
 383                                 ((unsigned long *)&priv->pf_stats)[i];
 384
 385         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 386              i++, bitmap_iterator_inc(&it))
 387                 if (bitmap_iterator_test(&it))
 388                         data[index++] =
 389                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 390
 391         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 392                 if (bitmap_iterator_test(&it))
 393                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 394
 395         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 396              i++, bitmap_iterator_inc(&it))
 397                 if (bitmap_iterator_test(&it))
 398                         data[index++] =
 399                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 400
 401         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 402                 if (bitmap_iterator_test(&it))
 403                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 404
 405         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 406                 if (bitmap_iterator_test(&it))
 407                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 408
 409         for (i = 0; i < NUM_XDP_STATS; i++, bitmap_iterator_inc(&it))
 410                 if (bitmap_iterator_test(&it))
 411                         data[index++] = ((unsigned long *)&priv->xdp_stats)[i];
 412
 413         for (i = 0; i < priv->tx_ring_num[TX]; i++) {
 414                 data[index++] = priv->tx_ring[TX][i]->packets;
 415                 data[index++] = priv->tx_ring[TX][i]->bytes;
 416         }
 417         for (i = 0; i < priv->rx_ring_num; i++) {
 418                 data[index++] = priv->rx_ring[i]->packets;
 419                 data[index++] = priv->rx_ring[i]->bytes;
 420                 data[index++] = priv->rx_ring[i]->dropped;
 421                 data[index++] = priv->rx_ring[i]->xdp_drop;
 422                 data[index++] = priv->rx_ring[i]->xdp_tx;
 423                 data[index++] = priv->rx_ring[i]->xdp_tx_full;
 424         }
 425         spin_unlock_bh(&priv->stats_lock);
 426
 427 }
 428
 429 static void mlx4_en_self_test(struct net_device *dev,
 430                               struct ethtool_test *etest, u64 *buf)
 431 {
 432         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 433 }
 434
 435 static void mlx4_en_get_strings(struct net_device *dev,
 436                                 uint32_t stringset, uint8_t *data)
 437 {
 438         struct mlx4_en_priv *priv = netdev_priv(dev);
 439         int index = 0;
 440         int i, strings = 0;
 441         struct bitmap_iterator it;
 442
 443         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 444
 445         switch (stringset) {
 446         case ETH_SS_TEST:
 447                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 448                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 449                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 450                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 451                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 452                 break;
 453
 454         case ETH_SS_STATS:
 455                 /* Add main counters */
 456                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 457                      bitmap_iterator_inc(&it))
 458                         if (bitmap_iterator_test(&it))
 459                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 460                                        main_strings[strings]);
 461
 462                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 463                      bitmap_iterator_inc(&it))
 464                         if (bitmap_iterator_test(&it))
 465                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 466                                        main_strings[strings]);
 467
 468                 for (i = 0; i < NUM_PF_STATS; i++, strings++,
 469                      bitmap_iterator_inc(&it))
 470                         if (bitmap_iterator_test(&it))
 471                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 472                                        main_strings[strings]);
 473
 474                 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 475                      bitmap_iterator_inc(&it))
 476                         if (bitmap_iterator_test(&it))
 477                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 478                                        main_strings[strings]);
 479
 480                 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 481                      bitmap_iterator_inc(&it))
 482                         if (bitmap_iterator_test(&it))
 483                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 484                                        main_strings[strings]);
 485
 486                 for (i = 0; i < NUM_XDP_STATS; i++, strings++,
 487                      bitmap_iterator_inc(&it))
 488                         if (bitmap_iterator_test(&it))
 489                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 490                                        main_strings[strings]);
 491
 492                 for (i = 0; i < priv->tx_ring_num[TX]; i++) {
 493                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 494                                 "tx%d_packets", i);
 495                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 496                                 "tx%d_bytes", i);
 497                 }
 498                 for (i = 0; i < priv->rx_ring_num; i++) {
 499                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 500                                 "rx%d_packets", i);
 501                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 502                                 "rx%d_bytes", i);
 503                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 504                                 "rx%d_dropped", i);
 505                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 506                                 "rx%d_xdp_drop", i);
 507                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 508                                 "rx%d_xdp_tx", i);
 509                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 510                                 "rx%d_xdp_tx_full", i);
 511                 }
 512                 break;
 513         case ETH_SS_PRIV_FLAGS:
 514                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 515                         strcpy(data + i * ETH_GSTRING_LEN,
 516                                mlx4_en_priv_flags[i]);
 517                 break;
 518
 519         }
 520 }
 521
 522 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 523 {
 524         struct mlx4_en_priv *priv = netdev_priv(dev);
 525         struct mlx4_en_dev *mdev = priv->mdev;
 526         u32 autoneg = AUTONEG_DISABLE;
 527
 528         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 529             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 530                 autoneg = AUTONEG_ENABLE;
 531
 532         return autoneg;
 533 }
 534
 535 static void ptys2ethtool_update_supported_port(unsigned long *mask,
 536                                                struct mlx4_ptys_reg *ptys_reg)
 537 {
 538         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 539
 540         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 541                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 542                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 543                 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask);
 544         } else if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 545                          | MLX4_PROT_MASK(MLX4_10GBASE_SR)
 546                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 547                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
 548                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 549                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 550                 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask);
 551         } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 552                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 553                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 554                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 555                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 556                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 557                 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask);
 558         }
 559 }
 560
 561 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 562 {
 563         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 564
 565         if (!eth_proto) /* link down */
 566                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 567
 568         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 569                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 570                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 571                         return PORT_TP;
 572         }
 573
 574         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 575                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 576                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 577                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 578                         return PORT_FIBRE;
 579         }
 580
 581         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 582                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 583                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 584                         return PORT_DA;
 585         }
 586
 587         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 588                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 589                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 590                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 591                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 592                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 593                         return PORT_NONE;
 594         }
 595         return PORT_OTHER;
 596 }
 597
 598 #define MLX4_LINK_MODES_SZ \
 599         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 600
 601 enum ethtool_report {
 602         SUPPORTED = 0,
 603         ADVERTISED = 1,
 604 };
 605
 606 struct ptys2ethtool_config {
 607         __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
 608         __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
 609         u32 speed;
 610 };
 611
 612 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg,
 613                                              enum ethtool_report report)
 614 {
 615         switch (report) {
 616         case SUPPORTED:
 617                 return cfg->supported;
 618         case ADVERTISED:
 619                 return cfg->advertised;
 620         }
 621         return NULL;
 622 }
 623
 624 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...)               \
 625         ({                                                              \
 626                 struct ptys2ethtool_config *cfg;                        \
 627                 const unsigned int modes[] = { __VA_ARGS__ };           \
 628                 unsigned int i;                                         \
 629                 cfg = &ptys2ethtool_map[reg_];                          \
 630                 cfg->speed = speed_;                                    \
 631                 bitmap_zero(cfg->supported,                             \
 632                             __ETHTOOL_LINK_MODE_MASK_NBITS);            \
 633                 bitmap_zero(cfg->advertised,                            \
 634                             __ETHTOOL_LINK_MODE_MASK_NBITS);            \
 635                 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) {             \
 636                         __set_bit(modes[i], cfg->supported);            \
 637                         __set_bit(modes[i], cfg->advertised);           \
 638                 }                                                       \
 639         })
 640
 641 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 642 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ];
 643
 644 void __init mlx4_en_init_ptys2ethtool_map(void)
 645 {
 646         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100,
 647                                        ETHTOOL_LINK_MODE_100baseT_Full_BIT);
 648         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
 649                                        ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
 650         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
 651                                        ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
 652         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
 653                                        ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
 654         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
 655                                        ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
 656         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000,
 657                                        ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
 658         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000,
 659                                        ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
 660         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
 661                                        ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
 662         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
 663                                        ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
 664         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
 665                                        ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
 666         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
 667                                        ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
 668                                        ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
 669         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000,
 670                                        ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
 671         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000,
 672                                        ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
 673         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000,
 674                                        ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
 675         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000,
 676                                        ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
 677         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000,
 678                                        ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT);
 679         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000,
 680                                        ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT);
 681 };
 682
 683 static void ptys2ethtool_update_link_modes(unsigned long *link_modes,
 684                                            u32 eth_proto,
 685                                            enum ethtool_report report)
 686 {
 687         int i;
 688         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 689                 if (eth_proto & MLX4_PROT_MASK(i))
 690                         bitmap_or(link_modes, link_modes,
 691                                   ptys2ethtool_link_mode(&ptys2ethtool_map[i],
 692                                                          report),
 693                                   __ETHTOOL_LINK_MODE_MASK_NBITS);
 694         }
 695 }
 696
 697 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes,
 698                                    enum ethtool_report report)
 699 {
 700         int i;
 701         u32 ptys_modes = 0;
 702
 703         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 704                 if (bitmap_intersects(
 705                             ptys2ethtool_link_mode(&ptys2ethtool_map[i],
 706                                                    report),
 707                             link_modes,
 708                             __ETHTOOL_LINK_MODE_MASK_NBITS))
 709                         ptys_modes |= 1 << i;
 710         }
 711         return ptys_modes;
 712 }
 713
 714 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 715 static u32 speed2ptys_link_modes(u32 speed)
 716 {
 717         int i;
 718         u32 ptys_modes = 0;
 719
 720         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 721                 if (ptys2ethtool_map[i].speed == speed)
 722                         ptys_modes |= 1 << i;
 723         }
 724         return ptys_modes;
 725 }
 726
 727 static int
 728 ethtool_get_ptys_link_ksettings(struct net_device *dev,
 729                                 struct ethtool_link_ksettings *link_ksettings)
 730 {
 731         struct mlx4_en_priv *priv = netdev_priv(dev);
 732         struct mlx4_ptys_reg ptys_reg;
 733         u32 eth_proto;
 734         int ret;
 735
 736         memset(&ptys_reg, 0, sizeof(ptys_reg));
 737         ptys_reg.local_port = priv->port;
 738         ptys_reg.proto_mask = MLX4_PTYS_EN;
 739         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 740                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 741         if (ret) {
 742                 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
 743                         ret);
 744                 return ret;
 745         }
 746         en_dbg(DRV, priv, "ptys_reg.proto_mask       %x\n",
 747                ptys_reg.proto_mask);
 748         en_dbg(DRV, priv, "ptys_reg.eth_proto_cap    %x\n",
 749                be32_to_cpu(ptys_reg.eth_proto_cap));
 750         en_dbg(DRV, priv, "ptys_reg.eth_proto_admin  %x\n",
 751                be32_to_cpu(ptys_reg.eth_proto_admin));
 752         en_dbg(DRV, priv, "ptys_reg.eth_proto_oper   %x\n",
 753                be32_to_cpu(ptys_reg.eth_proto_oper));
 754         en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
 755                be32_to_cpu(ptys_reg.eth_proto_lp_adv));
 756
 757         /* reset supported/advertising masks */
 758         ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 759         ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 760
 761         ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported,
 762                                            &ptys_reg);
 763
 764         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 765         ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported,
 766                                        eth_proto, SUPPORTED);
 767
 768         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 769         ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising,
 770                                        eth_proto, ADVERTISED);
 771
 772         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 773                                              Pause);
 774         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 775                                              Asym_Pause);
 776
 777         if (priv->prof->tx_pause)
 778                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 779                                                      advertising, Pause);
 780         if (priv->prof->tx_pause ^ priv->prof->rx_pause)
 781                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 782                                                      advertising, Asym_Pause);
 783
 784         link_ksettings->base.port = ptys_get_active_port(&ptys_reg);
 785
 786         if (mlx4_en_autoneg_get(dev)) {
 787                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 788                                                      supported, Autoneg);
 789                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 790                                                      advertising, Autoneg);
 791         }
 792
 793         link_ksettings->base.autoneg
 794                 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 795                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 796
 797         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 798
 799         ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
 800         ptys2ethtool_update_link_modes(
 801                 link_ksettings->link_modes.lp_advertising,
 802                 eth_proto, ADVERTISED);
 803         if (priv->port_state.flags & MLX4_EN_PORT_ANC)
 804                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 805                                                      lp_advertising, Autoneg);
 806
 807         link_ksettings->base.phy_address = 0;
 808         link_ksettings->base.mdio_support = 0;
 809         link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
 810         link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 811
 812         return ret;
 813 }
 814
 815 static void
 816 ethtool_get_default_link_ksettings(
 817         struct net_device *dev, struct ethtool_link_ksettings *link_ksettings)
 818 {
 819         struct mlx4_en_priv *priv = netdev_priv(dev);
 820         int trans_type;
 821
 822         link_ksettings->base.autoneg = AUTONEG_DISABLE;
 823
 824         ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 825         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 826                                              10000baseT_Full);
 827
 828         ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 829         ethtool_link_ksettings_add_link_mode(link_ksettings, advertising,
 830                                              10000baseT_Full);
 831
 832         trans_type = priv->port_state.transceiver;
 833         if (trans_type > 0 && trans_type <= 0xC) {
 834                 link_ksettings->base.port = PORT_FIBRE;
 835                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 836                                                      supported, FIBRE);
 837                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 838                                                      advertising, FIBRE);
 839         } else if (trans_type == 0x80 || trans_type == 0) {
 840                 link_ksettings->base.port = PORT_TP;
 841                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 842                                                      supported, TP);
 843                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 844                                                      advertising, TP);
 845         } else  {
 846                 link_ksettings->base.port = -1;
 847         }
 848 }
 849
 850 static int
 851 mlx4_en_get_link_ksettings(struct net_device *dev,
 852                            struct ethtool_link_ksettings *link_ksettings)
 853 {
 854         struct mlx4_en_priv *priv = netdev_priv(dev);
 855         int ret = -EINVAL;
 856
 857         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 858                 return -ENOMEM;
 859
 860         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 861                priv->port_state.flags & MLX4_EN_PORT_ANC,
 862                priv->port_state.flags & MLX4_EN_PORT_ANE);
 863
 864         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 865                 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings);
 866         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 867                 ethtool_get_default_link_ksettings(dev, link_ksettings);
 868
 869         if (netif_carrier_ok(dev)) {
 870                 link_ksettings->base.speed = priv->port_state.link_speed;
 871                 link_ksettings->base.duplex = DUPLEX_FULL;
 872         } else {
 873                 link_ksettings->base.speed = SPEED_UNKNOWN;
 874                 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
 875         }
 876         return 0;
 877 }
 878
 879 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 880 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 881                                    __be32 proto_cap)
 882 {
 883         __be32 proto_admin = 0;
 884
 885         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 886                 proto_admin = proto_cap;
 887                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 888                         be32_to_cpu(proto_cap));
 889         } else {
 890                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 891
 892                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 893                 en_info(priv, "Setting Speed to %d\n", speed);
 894         }
 895         return proto_admin;
 896 }
 897
 898 static int
 899 mlx4_en_set_link_ksettings(struct net_device *dev,
 900                            const struct ethtool_link_ksettings *link_ksettings)
 901 {
 902         struct mlx4_en_priv *priv = netdev_priv(dev);
 903         struct mlx4_ptys_reg ptys_reg;
 904         __be32 proto_admin;
 905         int ret;
 906
 907         u32 ptys_adv = ethtool2ptys_link_modes(
 908                 link_ksettings->link_modes.advertising, ADVERTISED);
 909         const int speed = link_ksettings->base.speed;
 910
 911         en_dbg(DRV, priv,
 912                "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n",
 913                speed, __ETHTOOL_LINK_MODE_MASK_NBITS,
 914                link_ksettings->link_modes.advertising,
 915                link_ksettings->base.autoneg,
 916                link_ksettings->base.duplex);
 917
 918         if (!(priv->mdev->dev->caps.flags2 &
 919               MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 920             (link_ksettings->base.duplex == DUPLEX_HALF))
 921                 return -EINVAL;
 922
 923         memset(&ptys_reg, 0, sizeof(ptys_reg));
 924         ptys_reg.local_port = priv->port;
 925         ptys_reg.proto_mask = MLX4_PTYS_EN;
 926         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 927                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 928         if (ret) {
 929                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 930                         ret);
 931                 return 0;
 932         }
 933
 934         proto_admin = link_ksettings->base.autoneg == AUTONEG_ENABLE ?
 935                 cpu_to_be32(ptys_adv) :
 936                 speed_set_ptys_admin(priv, speed,
 937                                      ptys_reg.eth_proto_cap);
 938
 939         proto_admin &= ptys_reg.eth_proto_cap;
 940         if (!proto_admin) {
 941                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 942                 return -EINVAL; /* nothing to change due to bad input */
 943         }
 944
 945         if (proto_admin == ptys_reg.eth_proto_admin)
 946                 return 0; /* Nothing to change */
 947
 948         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 949                be32_to_cpu(proto_admin));
 950
 951         ptys_reg.eth_proto_admin = proto_admin;
 952         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 953                                    &ptys_reg);
 954         if (ret) {
 955                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 956                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 957                 return ret;
 958         }
 959
 960         mutex_lock(&priv->mdev->state_lock);
 961         if (priv->port_up) {
 962                 en_warn(priv, "Port link mode changed, restarting port...\n");
 963                 mlx4_en_stop_port(dev, 1);
 964                 if (mlx4_en_start_port(dev))
 965                         en_err(priv, "Failed restarting port %d\n", priv->port);
 966         }
 967         mutex_unlock(&priv->mdev->state_lock);
 968         return 0;
 969 }
 970
 971 static int mlx4_en_get_coalesce(struct net_device *dev,
 972                               struct ethtool_coalesce *coal)
 973 {
 974         struct mlx4_en_priv *priv = netdev_priv(dev);
 975
 976         coal->tx_coalesce_usecs = priv->tx_usecs;
 977         coal->tx_max_coalesced_frames = priv->tx_frames;
 978         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 979
 980         coal->rx_coalesce_usecs = priv->rx_usecs;
 981         coal->rx_max_coalesced_frames = priv->rx_frames;
 982
 983         coal->pkt_rate_low = priv->pkt_rate_low;
 984         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 985         coal->pkt_rate_high = priv->pkt_rate_high;
 986         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 987         coal->rate_sample_interval = priv->sample_interval;
 988         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 989
 990         return 0;
 991 }
 992
 993 static int mlx4_en_set_coalesce(struct net_device *dev,
 994                               struct ethtool_coalesce *coal)
 995 {
 996         struct mlx4_en_priv *priv = netdev_priv(dev);
 997
 998         if (!coal->tx_max_coalesced_frames_irq)
 999                 return -EINVAL;
1000
1001         priv->rx_frames = (coal->rx_max_coalesced_frames ==
1002                            MLX4_EN_AUTO_CONF) ?
1003                                 MLX4_EN_RX_COAL_TARGET :
1004                                 coal->rx_max_coalesced_frames;
1005         priv->rx_usecs = (coal->rx_coalesce_usecs ==
1006                           MLX4_EN_AUTO_CONF) ?
1007                                 MLX4_EN_RX_COAL_TIME :
1008                                 coal->rx_coalesce_usecs;
1009
1010         /* Setting TX coalescing parameters */
1011         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
1012             coal->tx_max_coalesced_frames != priv->tx_frames) {
1013                 priv->tx_usecs = coal->tx_coalesce_usecs;
1014                 priv->tx_frames = coal->tx_max_coalesced_frames;
1015         }
1016
1017         /* Set adaptive coalescing params */
1018         priv->pkt_rate_low = coal->pkt_rate_low;
1019         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
1020         priv->pkt_rate_high = coal->pkt_rate_high;
1021         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
1022         priv->sample_interval = coal->rate_sample_interval;
1023         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
1024         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
1025
1026         return mlx4_en_moderation_update(priv);
1027 }
1028
1029 static int mlx4_en_set_pauseparam(struct net_device *dev,
1030                                 struct ethtool_pauseparam *pause)
1031 {
1032         struct mlx4_en_priv *priv = netdev_priv(dev);
1033         struct mlx4_en_dev *mdev = priv->mdev;
1034         int err;
1035
1036         if (pause->autoneg)
1037                 return -EINVAL;
1038
1039         priv->prof->tx_pause = pause->tx_pause != 0;
1040         priv->prof->rx_pause = pause->rx_pause != 0;
1041         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1042                                     priv->rx_skb_size + ETH_FCS_LEN,
1043                                     priv->prof->tx_pause,
1044                                     priv->prof->tx_ppp,
1045                                     priv->prof->rx_pause,
1046                                     priv->prof->rx_ppp);
1047         if (err)
1048                 en_err(priv, "Failed setting pause params\n");
1049         else
1050                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1051                                                 priv->prof->rx_ppp,
1052                                                 priv->prof->rx_pause,
1053                                                 priv->prof->tx_ppp,
1054                                                 priv->prof->tx_pause);
1055
1056         return err;
1057 }
1058
1059 static void mlx4_en_get_pauseparam(struct net_device *dev,
1060                                  struct ethtool_pauseparam *pause)
1061 {
1062         struct mlx4_en_priv *priv = netdev_priv(dev);
1063
1064         pause->tx_pause = priv->prof->tx_pause;
1065         pause->rx_pause = priv->prof->rx_pause;
1066 }
1067
1068 static int mlx4_en_set_ringparam(struct net_device *dev,
1069                                  struct ethtool_ringparam *param)
1070 {
1071         struct mlx4_en_priv *priv = netdev_priv(dev);
1072         struct mlx4_en_dev *mdev = priv->mdev;
1073         struct mlx4_en_port_profile new_prof;
1074         struct mlx4_en_priv *tmp;
1075         u32 rx_size, tx_size;
1076         int port_up = 0;
1077         int err = 0;
1078
1079         if (param->rx_jumbo_pending || param->rx_mini_pending)
1080                 return -EINVAL;
1081
1082         rx_size = roundup_pow_of_two(param->rx_pending);
1083         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1084         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1085         tx_size = roundup_pow_of_two(param->tx_pending);
1086         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1087         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1088
1089         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1090                                         priv->rx_ring[0]->size) &&
1091             tx_size == priv->tx_ring[TX][0]->size)
1092                 return 0;
1093
1094         tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1095         if (!tmp)
1096                 return -ENOMEM;
1097
1098         mutex_lock(&mdev->state_lock);
1099         memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1100         new_prof.tx_ring_size = tx_size;
1101         new_prof.rx_ring_size = rx_size;
1102         err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1103         if (err)
1104                 goto out;
1105
1106         if (priv->port_up) {
1107                 port_up = 1;
1108                 mlx4_en_stop_port(dev, 1);
1109         }
1110
1111         mlx4_en_safe_replace_resources(priv, tmp);
1112
1113         if (port_up) {
1114                 err = mlx4_en_start_port(dev);
1115                 if (err)
1116                         en_err(priv, "Failed starting port\n");
1117         }
1118
1119         err = mlx4_en_moderation_update(priv);
1120 out:
1121         kfree(tmp);
1122         mutex_unlock(&mdev->state_lock);
1123         return err;
1124 }
1125
1126 static void mlx4_en_get_ringparam(struct net_device *dev,
1127                                   struct ethtool_ringparam *param)
1128 {
1129         struct mlx4_en_priv *priv = netdev_priv(dev);
1130
1131         memset(param, 0, sizeof(*param));
1132         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1133         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1134         param->rx_pending = priv->port_up ?
1135                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1136         param->tx_pending = priv->tx_ring[TX][0]->size;
1137 }
1138
1139 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1140 {
1141         struct mlx4_en_priv *priv = netdev_priv(dev);
1142
1143         return rounddown_pow_of_two(priv->rx_ring_num);
1144 }
1145
1146 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1147 {
1148         return MLX4_EN_RSS_KEY_SIZE;
1149 }
1150
1151 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1152 {
1153         struct mlx4_en_priv *priv = netdev_priv(dev);
1154
1155         /* check if requested function is supported by the device */
1156         if (hfunc == ETH_RSS_HASH_TOP) {
1157                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1158                         return -EINVAL;
1159                 if (!(dev->features & NETIF_F_RXHASH))
1160                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1161                 return 0;
1162         } else if (hfunc == ETH_RSS_HASH_XOR) {
1163                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1164                         return -EINVAL;
1165                 if (dev->features & NETIF_F_RXHASH)
1166                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1167                 return 0;
1168         }
1169
1170         return -EINVAL;
1171 }
1172
1173 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1174                             u8 *hfunc)
1175 {
1176         struct mlx4_en_priv *priv = netdev_priv(dev);
1177         u32 n = mlx4_en_get_rxfh_indir_size(dev);
1178         u32 i, rss_rings;
1179         int err = 0;
1180
1181         rss_rings = priv->prof->rss_rings ?: n;
1182         rss_rings = rounddown_pow_of_two(rss_rings);
1183
1184         for (i = 0; i < n; i++) {
1185                 if (!ring_index)
1186                         break;
1187                 ring_index[i] = i % rss_rings;
1188         }
1189         if (key)
1190                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1191         if (hfunc)
1192                 *hfunc = priv->rss_hash_fn;
1193         return err;
1194 }
1195
1196 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1197                             const u8 *key, const u8 hfunc)
1198 {
1199         struct mlx4_en_priv *priv = netdev_priv(dev);
1200         u32 n = mlx4_en_get_rxfh_indir_size(dev);
1201         struct mlx4_en_dev *mdev = priv->mdev;
1202         int port_up = 0;
1203         int err = 0;
1204         int i;
1205         int rss_rings = 0;
1206
1207         /* Calculate RSS table size and make sure flows are spread evenly
1208          * between rings
1209          */
1210         for (i = 0; i < n; i++) {
1211                 if (!ring_index)
1212                         break;
1213                 if (i > 0 && !ring_index[i] && !rss_rings)
1214                         rss_rings = i;
1215
1216                 if (ring_index[i] != (i % (rss_rings ?: n)))
1217                         return -EINVAL;
1218         }
1219
1220         if (!rss_rings)
1221                 rss_rings = n;
1222
1223         /* RSS table size must be an order of 2 */
1224         if (!is_power_of_2(rss_rings))
1225                 return -EINVAL;
1226
1227         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1228                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1229                 if (err)
1230                         return err;
1231         }
1232
1233         mutex_lock(&mdev->state_lock);
1234         if (priv->port_up) {
1235                 port_up = 1;
1236                 mlx4_en_stop_port(dev, 1);
1237         }
1238
1239         if (ring_index)
1240                 priv->prof->rss_rings = rss_rings;
1241         if (key)
1242                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1243         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1244                 priv->rss_hash_fn = hfunc;
1245
1246         if (port_up) {
1247                 err = mlx4_en_start_port(dev);
1248                 if (err)
1249                         en_err(priv, "Failed starting port\n");
1250         }
1251
1252         mutex_unlock(&mdev->state_lock);
1253         return err;
1254 }
1255
1256 #define all_zeros_or_all_ones(field)            \
1257         ((field) == 0 || (field) == (__force typeof(field))-1)
1258
1259 static int mlx4_en_validate_flow(struct net_device *dev,
1260                                  struct ethtool_rxnfc *cmd)
1261 {
1262         struct ethtool_usrip4_spec *l3_mask;
1263         struct ethtool_tcpip4_spec *l4_mask;
1264         struct ethhdr *eth_mask;
1265
1266         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1267                 return -EINVAL;
1268
1269         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1270                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1271                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1272                         return -EINVAL;
1273         }
1274
1275         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1276         case TCP_V4_FLOW:
1277         case UDP_V4_FLOW:
1278                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1279                         return -EINVAL;
1280                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1281                 /* don't allow mask which isn't all 0 or 1 */
1282                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1283                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1284                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1285                     !all_zeros_or_all_ones(l4_mask->pdst))
1286                         return -EINVAL;
1287                 break;
1288         case IP_USER_FLOW:
1289                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1290                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1291                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1292                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1293                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1294                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1295                         return -EINVAL;
1296                 break;
1297         case ETHER_FLOW:
1298                 eth_mask = &cmd->fs.m_u.ether_spec;
1299                 /* source mac mask must not be set */
1300                 if (!is_zero_ether_addr(eth_mask->h_source))
1301                         return -EINVAL;
1302
1303                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1304                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1305                         return -EINVAL;
1306
1307                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1308                         return -EINVAL;
1309                 break;
1310         default:
1311                 return -EINVAL;
1312         }
1313
1314         if ((cmd->fs.flow_type & FLOW_EXT)) {
1315                 if (cmd->fs.m_ext.vlan_etype ||
1316                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1317                       0 ||
1318                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1319                       cpu_to_be16(VLAN_VID_MASK)))
1320                         return -EINVAL;
1321
1322                 if (cmd->fs.m_ext.vlan_tci) {
1323                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1324                                 return -EINVAL;
1325
1326                 }
1327         }
1328
1329         return 0;
1330 }
1331
1332 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1333                                         struct list_head *rule_list_h,
1334                                         struct mlx4_spec_list *spec_l2,
1335                                         unsigned char *mac)
1336 {
1337         int err = 0;
1338         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1339
1340         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1341         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1342         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1343
1344         if ((cmd->fs.flow_type & FLOW_EXT) &&
1345             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1346                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1347                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1348         }
1349
1350         list_add_tail(&spec_l2->list, rule_list_h);
1351
1352         return err;
1353 }
1354
1355 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1356                                                 struct ethtool_rxnfc *cmd,
1357                                                 struct list_head *rule_list_h,
1358                                                 struct mlx4_spec_list *spec_l2,
1359                                                 __be32 ipv4_dst)
1360 {
1361 #ifdef CONFIG_INET
1362         unsigned char mac[ETH_ALEN];
1363
1364         if (!ipv4_is_multicast(ipv4_dst)) {
1365                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1366                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1367                 else
1368                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1369         } else {
1370                 ip_eth_mc_map(ipv4_dst, mac);
1371         }
1372
1373         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1374 #else
1375         return -EINVAL;
1376 #endif
1377 }
1378
1379 static int add_ip_rule(struct mlx4_en_priv *priv,
1380                        struct ethtool_rxnfc *cmd,
1381                        struct list_head *list_h)
1382 {
1383         int err;
1384         struct mlx4_spec_list *spec_l2 = NULL;
1385         struct mlx4_spec_list *spec_l3 = NULL;
1386         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1387
1388         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1389         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1390         if (!spec_l2 || !spec_l3) {
1391                 err = -ENOMEM;
1392                 goto free_spec;
1393         }
1394
1395         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1396                                                    cmd->fs.h_u.
1397                                                    usr_ip4_spec.ip4dst);
1398         if (err)
1399                 goto free_spec;
1400         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1401         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1402         if (l3_mask->ip4src)
1403                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1404         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1405         if (l3_mask->ip4dst)
1406                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1407         list_add_tail(&spec_l3->list, list_h);
1408
1409         return 0;
1410
1411 free_spec:
1412         kfree(spec_l2);
1413         kfree(spec_l3);
1414         return err;
1415 }
1416
1417 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1418                              struct ethtool_rxnfc *cmd,
1419                              struct list_head *list_h, int proto)
1420 {
1421         int err;
1422         struct mlx4_spec_list *spec_l2 = NULL;
1423         struct mlx4_spec_list *spec_l3 = NULL;
1424         struct mlx4_spec_list *spec_l4 = NULL;
1425         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1426
1427         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1428         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1429         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1430         if (!spec_l2 || !spec_l3 || !spec_l4) {
1431                 err = -ENOMEM;
1432                 goto free_spec;
1433         }
1434
1435         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1436
1437         if (proto == TCP_V4_FLOW) {
1438                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1439                                                            spec_l2,
1440                                                            cmd->fs.h_u.
1441                                                            tcp_ip4_spec.ip4dst);
1442                 if (err)
1443                         goto free_spec;
1444                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1445                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1446                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1447                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1448                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1449         } else {
1450                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1451                                                            spec_l2,
1452                                                            cmd->fs.h_u.
1453                                                            udp_ip4_spec.ip4dst);
1454                 if (err)
1455                         goto free_spec;
1456                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1457                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1458                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1459                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1460                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1461         }
1462
1463         if (l4_mask->ip4src)
1464                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1465         if (l4_mask->ip4dst)
1466                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1467
1468         if (l4_mask->psrc)
1469                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1470         if (l4_mask->pdst)
1471                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1472
1473         list_add_tail(&spec_l3->list, list_h);
1474         list_add_tail(&spec_l4->list, list_h);
1475
1476         return 0;
1477
1478 free_spec:
1479         kfree(spec_l2);
1480         kfree(spec_l3);
1481         kfree(spec_l4);
1482         return err;
1483 }
1484
1485 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1486                                              struct ethtool_rxnfc *cmd,
1487                                              struct list_head *rule_list_h)
1488 {
1489         int err;
1490         struct ethhdr *eth_spec;
1491         struct mlx4_spec_list *spec_l2;
1492         struct mlx4_en_priv *priv = netdev_priv(dev);
1493
1494         err = mlx4_en_validate_flow(dev, cmd);
1495         if (err)
1496                 return err;
1497
1498         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1499         case ETHER_FLOW:
1500                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1501                 if (!spec_l2)
1502                         return -ENOMEM;
1503
1504                 eth_spec = &cmd->fs.h_u.ether_spec;
1505                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1506                                              &eth_spec->h_dest[0]);
1507                 spec_l2->eth.ether_type = eth_spec->h_proto;
1508                 if (eth_spec->h_proto)
1509                         spec_l2->eth.ether_type_enable = 1;
1510                 break;
1511         case IP_USER_FLOW:
1512                 err = add_ip_rule(priv, cmd, rule_list_h);
1513                 break;
1514         case TCP_V4_FLOW:
1515                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1516                 break;
1517         case UDP_V4_FLOW:
1518                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1519                 break;
1520         }
1521
1522         return err;
1523 }
1524
1525 static int mlx4_en_flow_replace(struct net_device *dev,
1526                                 struct ethtool_rxnfc *cmd)
1527 {
1528         int err;
1529         struct mlx4_en_priv *priv = netdev_priv(dev);
1530         struct ethtool_flow_id *loc_rule;
1531         struct mlx4_spec_list *spec, *tmp_spec;
1532         u32 qpn;
1533         u64 reg_id;
1534
1535         struct mlx4_net_trans_rule rule = {
1536                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1537                 .exclusive = 0,
1538                 .allow_loopback = 1,
1539                 .promisc_mode = MLX4_FS_REGULAR,
1540         };
1541
1542         rule.port = priv->port;
1543         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1544         INIT_LIST_HEAD(&rule.list);
1545
1546         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1547         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1548                 qpn = priv->drop_qp.qpn;
1549         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1550                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1551         } else {
1552                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1553                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1554                                 cmd->fs.ring_cookie);
1555                         return -EINVAL;
1556                 }
1557                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1558                 if (!qpn) {
1559                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1560                                 cmd->fs.ring_cookie);
1561                         return -EINVAL;
1562                 }
1563         }
1564         rule.qpn = qpn;
1565         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1566         if (err)
1567                 goto out_free_list;
1568
1569         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1570         if (loc_rule->id) {
1571                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1572                 if (err) {
1573                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1574                                cmd->fs.location, loc_rule->id);
1575                         goto out_free_list;
1576                 }
1577                 loc_rule->id = 0;
1578                 memset(&loc_rule->flow_spec, 0,
1579                        sizeof(struct ethtool_rx_flow_spec));
1580                 list_del(&loc_rule->list);
1581         }
1582         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1583         if (err) {
1584                 en_err(priv, "Fail to attach network rule at location %d\n",
1585                        cmd->fs.location);
1586                 goto out_free_list;
1587         }
1588         loc_rule->id = reg_id;
1589         memcpy(&loc_rule->flow_spec, &cmd->fs,
1590                sizeof(struct ethtool_rx_flow_spec));
1591         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1592
1593 out_free_list:
1594         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1595                 list_del(&spec->list);
1596                 kfree(spec);
1597         }
1598         return err;
1599 }
1600
1601 static int mlx4_en_flow_detach(struct net_device *dev,
1602                                struct ethtool_rxnfc *cmd)
1603 {
1604         int err = 0;
1605         struct ethtool_flow_id *rule;
1606         struct mlx4_en_priv *priv = netdev_priv(dev);
1607
1608         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1609                 return -EINVAL;
1610
1611         rule = &priv->ethtool_rules[cmd->fs.location];
1612         if (!rule->id) {
1613                 err =  -ENOENT;
1614                 goto out;
1615         }
1616
1617         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1618         if (err) {
1619                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1620                        cmd->fs.location, rule->id);
1621                 goto out;
1622         }
1623         rule->id = 0;
1624         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1625         list_del(&rule->list);
1626 out:
1627         return err;
1628
1629 }
1630
1631 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1632                             int loc)
1633 {
1634         int err = 0;
1635         struct ethtool_flow_id *rule;
1636         struct mlx4_en_priv *priv = netdev_priv(dev);
1637
1638         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1639                 return -EINVAL;
1640
1641         rule = &priv->ethtool_rules[loc];
1642         if (rule->id)
1643                 memcpy(&cmd->fs, &rule->flow_spec,
1644                        sizeof(struct ethtool_rx_flow_spec));
1645         else
1646                 err = -ENOENT;
1647
1648         return err;
1649 }
1650
1651 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1652 {
1653
1654         int i, res = 0;
1655         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1656                 if (priv->ethtool_rules[i].id)
1657                         res++;
1658         }
1659         return res;
1660
1661 }
1662
1663 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1664                              u32 *rule_locs)
1665 {
1666         struct mlx4_en_priv *priv = netdev_priv(dev);
1667         struct mlx4_en_dev *mdev = priv->mdev;
1668         int err = 0;
1669         int i = 0, priority = 0;
1670
1671         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1672              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1673              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1674             (mdev->dev->caps.steering_mode !=
1675              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1676                 return -EINVAL;
1677
1678         switch (cmd->cmd) {
1679         case ETHTOOL_GRXRINGS:
1680                 cmd->data = priv->rx_ring_num;
1681                 break;
1682         case ETHTOOL_GRXCLSRLCNT:
1683                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1684                 break;
1685         case ETHTOOL_GRXCLSRULE:
1686                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1687                 break;
1688         case ETHTOOL_GRXCLSRLALL:
1689                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1690                         err = mlx4_en_get_flow(dev, cmd, i);
1691                         if (!err)
1692                                 rule_locs[priority++] = i;
1693                         i++;
1694                 }
1695                 err = 0;
1696                 break;
1697         default:
1698                 err = -EOPNOTSUPP;
1699                 break;
1700         }
1701
1702         return err;
1703 }
1704
1705 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1706 {
1707         int err = 0;
1708         struct mlx4_en_priv *priv = netdev_priv(dev);
1709         struct mlx4_en_dev *mdev = priv->mdev;
1710
1711         if (mdev->dev->caps.steering_mode !=
1712             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1713                 return -EINVAL;
1714
1715         switch (cmd->cmd) {
1716         case ETHTOOL_SRXCLSRLINS:
1717                 err = mlx4_en_flow_replace(dev, cmd);
1718                 break;
1719         case ETHTOOL_SRXCLSRLDEL:
1720                 err = mlx4_en_flow_detach(dev, cmd);
1721                 break;
1722         default:
1723                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1724                 return -EINVAL;
1725         }
1726
1727         return err;
1728 }
1729
1730 static void mlx4_en_get_channels(struct net_device *dev,
1731                                  struct ethtool_channels *channel)
1732 {
1733         struct mlx4_en_priv *priv = netdev_priv(dev);
1734
1735         memset(channel, 0, sizeof(*channel));
1736
1737         channel->max_rx = MAX_RX_RINGS;
1738         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1739
1740         channel->rx_count = priv->rx_ring_num;
1741         channel->tx_count = priv->tx_ring_num[TX] / MLX4_EN_NUM_UP;
1742 }
1743
1744 static int mlx4_en_set_channels(struct net_device *dev,
1745                                 struct ethtool_channels *channel)
1746 {
1747         struct mlx4_en_priv *priv = netdev_priv(dev);
1748         struct mlx4_en_dev *mdev = priv->mdev;
1749         struct mlx4_en_port_profile new_prof;
1750         struct mlx4_en_priv *tmp;
1751         int port_up = 0;
1752         int xdp_count;
1753         int err = 0;
1754
1755         if (channel->other_count || channel->combined_count ||
1756             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1757             channel->rx_count > MAX_RX_RINGS ||
1758             !channel->tx_count || !channel->rx_count)
1759                 return -EINVAL;
1760
1761         tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1762         if (!tmp)
1763                 return -ENOMEM;
1764
1765         mutex_lock(&mdev->state_lock);
1766         xdp_count = priv->tx_ring_num[TX_XDP] ? channel->rx_count : 0;
1767         if (channel->tx_count * MLX4_EN_NUM_UP + xdp_count > MAX_TX_RINGS) {
1768                 err = -EINVAL;
1769                 en_err(priv,
1770                        "Total number of TX and XDP rings (%d) exceeds the maximum supported (%d)\n",
1771                        channel->tx_count * MLX4_EN_NUM_UP + xdp_count,
1772                        MAX_TX_RINGS);
1773                 goto out;
1774         }
1775
1776         memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1777         new_prof.num_tx_rings_p_up = channel->tx_count;
1778         new_prof.tx_ring_num[TX] = channel->tx_count * MLX4_EN_NUM_UP;
1779         new_prof.tx_ring_num[TX_XDP] = xdp_count;
1780         new_prof.rx_ring_num = channel->rx_count;
1781
1782         err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1783         if (err)
1784                 goto out;
1785
1786         if (priv->port_up) {
1787                 port_up = 1;
1788                 mlx4_en_stop_port(dev, 1);
1789         }
1790
1791         mlx4_en_safe_replace_resources(priv, tmp);
1792
1793         netif_set_real_num_tx_queues(dev, priv->tx_ring_num[TX]);
1794         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1795
1796         if (dev->num_tc)
1797                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1798
1799         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num[TX]);
1800         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1801
1802         if (port_up) {
1803                 err = mlx4_en_start_port(dev);
1804                 if (err)
1805                         en_err(priv, "Failed starting port\n");
1806         }
1807
1808         err = mlx4_en_moderation_update(priv);
1809 out:
1810         mutex_unlock(&mdev->state_lock);
1811         kfree(tmp);
1812         return err;
1813 }
1814
1815 static int mlx4_en_get_ts_info(struct net_device *dev,
1816                                struct ethtool_ts_info *info)
1817 {
1818         struct mlx4_en_priv *priv = netdev_priv(dev);
1819         struct mlx4_en_dev *mdev = priv->mdev;
1820         int ret;
1821
1822         ret = ethtool_op_get_ts_info(dev, info);
1823         if (ret)
1824                 return ret;
1825
1826         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1827                 info->so_timestamping |=
1828                         SOF_TIMESTAMPING_TX_HARDWARE |
1829                         SOF_TIMESTAMPING_RX_HARDWARE |
1830                         SOF_TIMESTAMPING_RAW_HARDWARE;
1831
1832                 info->tx_types =
1833                         (1 << HWTSTAMP_TX_OFF) |
1834                         (1 << HWTSTAMP_TX_ON);
1835
1836                 info->rx_filters =
1837                         (1 << HWTSTAMP_FILTER_NONE) |
1838                         (1 << HWTSTAMP_FILTER_ALL);
1839
1840                 if (mdev->ptp_clock)
1841                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1842         }
1843
1844         return ret;
1845 }
1846
1847 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1848 {
1849         struct mlx4_en_priv *priv = netdev_priv(dev);
1850         struct mlx4_en_dev *mdev = priv->mdev;
1851         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1852         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1853         bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1854         bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1855         int i;
1856         int ret = 0;
1857
1858         if (bf_enabled_new != bf_enabled_old) {
1859                 int t;
1860
1861                 if (bf_enabled_new) {
1862                         bool bf_supported = true;
1863
1864                         for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
1865                                 for (i = 0; i < priv->tx_ring_num[t]; i++)
1866                                         bf_supported &=
1867                                                 priv->tx_ring[t][i]->bf_alloced;
1868
1869                         if (!bf_supported) {
1870                                 en_err(priv, "BlueFlame is not supported\n");
1871                                 return -EINVAL;
1872                         }
1873
1874                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1875                 } else {
1876                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1877                 }
1878
1879                 for (t = 0; t < MLX4_EN_NUM_TX_TYPES; t++)
1880                         for (i = 0; i < priv->tx_ring_num[t]; i++)
1881                                 priv->tx_ring[t][i]->bf_enabled =
1882                                         bf_enabled_new;
1883
1884                 en_info(priv, "BlueFlame %s\n",
1885                         bf_enabled_new ?  "Enabled" : "Disabled");
1886         }
1887
1888         if (phv_enabled_new != phv_enabled_old) {
1889                 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1890                 if (ret)
1891                         return ret;
1892                 else if (phv_enabled_new)
1893                         priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1894                 else
1895                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1896                 en_info(priv, "PHV bit %s\n",
1897                         phv_enabled_new ?  "Enabled" : "Disabled");
1898         }
1899         return 0;
1900 }
1901
1902 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1903 {
1904         struct mlx4_en_priv *priv = netdev_priv(dev);
1905
1906         return priv->pflags;
1907 }
1908
1909 static int mlx4_en_get_tunable(struct net_device *dev,
1910                                const struct ethtool_tunable *tuna,
1911                                void *data)
1912 {
1913         const struct mlx4_en_priv *priv = netdev_priv(dev);
1914         int ret = 0;
1915
1916         switch (tuna->id) {
1917         case ETHTOOL_TX_COPYBREAK:
1918                 *(u32 *)data = priv->prof->inline_thold;
1919                 break;
1920         default:
1921                 ret = -EINVAL;
1922                 break;
1923         }
1924
1925         return ret;
1926 }
1927
1928 static int mlx4_en_set_tunable(struct net_device *dev,
1929                                const struct ethtool_tunable *tuna,
1930                                const void *data)
1931 {
1932         struct mlx4_en_priv *priv = netdev_priv(dev);
1933         int val, ret = 0;
1934
1935         switch (tuna->id) {
1936         case ETHTOOL_TX_COPYBREAK:
1937                 val = *(u32 *)data;
1938                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1939                         ret = -EINVAL;
1940                 else
1941                         priv->prof->inline_thold = val;
1942                 break;
1943         default:
1944                 ret = -EINVAL;
1945                 break;
1946         }
1947
1948         return ret;
1949 }
1950
1951 static int mlx4_en_get_module_info(struct net_device *dev,
1952                                    struct ethtool_modinfo *modinfo)
1953 {
1954         struct mlx4_en_priv *priv = netdev_priv(dev);
1955         struct mlx4_en_dev *mdev = priv->mdev;
1956         int ret;
1957         u8 data[4];
1958
1959         /* Read first 2 bytes to get Module & REV ID */
1960         ret = mlx4_get_module_info(mdev->dev, priv->port,
1961                                    0/*offset*/, 2/*size*/, data);
1962         if (ret < 2)
1963                 return -EIO;
1964
1965         switch (data[0] /* identifier */) {
1966         case MLX4_MODULE_ID_QSFP:
1967                 modinfo->type = ETH_MODULE_SFF_8436;
1968                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1969                 break;
1970         case MLX4_MODULE_ID_QSFP_PLUS:
1971                 if (data[1] >= 0x3) { /* revision id */
1972                         modinfo->type = ETH_MODULE_SFF_8636;
1973                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1974                 } else {
1975                         modinfo->type = ETH_MODULE_SFF_8436;
1976                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1977                 }
1978                 break;
1979         case MLX4_MODULE_ID_QSFP28:
1980                 modinfo->type = ETH_MODULE_SFF_8636;
1981                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1982                 break;
1983         case MLX4_MODULE_ID_SFP:
1984                 modinfo->type = ETH_MODULE_SFF_8472;
1985                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1986                 break;
1987         default:
1988                 return -ENOSYS;
1989         }
1990
1991         return 0;
1992 }
1993
1994 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1995                                      struct ethtool_eeprom *ee,
1996                                      u8 *data)
1997 {
1998         struct mlx4_en_priv *priv = netdev_priv(dev);
1999         struct mlx4_en_dev *mdev = priv->mdev;
2000         int offset = ee->offset;
2001         int i = 0, ret;
2002
2003         if (ee->len == 0)
2004                 return -EINVAL;
2005
2006         memset(data, 0, ee->len);
2007
2008         while (i < ee->len) {
2009                 en_dbg(DRV, priv,
2010                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
2011                        i, offset, ee->len - i);
2012
2013                 ret = mlx4_get_module_info(mdev->dev, priv->port,
2014                                            offset, ee->len - i, data + i);
2015
2016                 if (!ret) /* Done reading */
2017                         return 0;
2018
2019                 if (ret < 0) {
2020                         en_err(priv,
2021                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
2022                                i, offset, ee->len - i, ret);
2023                         return 0;
2024                 }
2025
2026                 i += ret;
2027                 offset += ret;
2028         }
2029         return 0;
2030 }
2031
2032 static int mlx4_en_set_phys_id(struct net_device *dev,
2033                                enum ethtool_phys_id_state state)
2034 {
2035         int err;
2036         u16 beacon_duration;
2037         struct mlx4_en_priv *priv = netdev_priv(dev);
2038         struct mlx4_en_dev *mdev = priv->mdev;
2039
2040         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
2041                 return -EOPNOTSUPP;
2042
2043         switch (state) {
2044         case ETHTOOL_ID_ACTIVE:
2045                 beacon_duration = PORT_BEACON_MAX_LIMIT;
2046                 break;
2047         case ETHTOOL_ID_INACTIVE:
2048                 beacon_duration = 0;
2049                 break;
2050         default:
2051                 return -EOPNOTSUPP;
2052         }
2053
2054         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
2055         return err;
2056 }
2057
2058 const struct ethtool_ops mlx4_en_ethtool_ops = {
2059         .get_drvinfo = mlx4_en_get_drvinfo,
2060         .get_link_ksettings = mlx4_en_get_link_ksettings,
2061         .set_link_ksettings = mlx4_en_set_link_ksettings,
2062         .get_link = ethtool_op_get_link,
2063         .get_strings = mlx4_en_get_strings,
2064         .get_sset_count = mlx4_en_get_sset_count,
2065         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2066         .self_test = mlx4_en_self_test,
2067         .set_phys_id = mlx4_en_set_phys_id,
2068         .get_wol = mlx4_en_get_wol,
2069         .set_wol = mlx4_en_set_wol,
2070         .get_msglevel = mlx4_en_get_msglevel,
2071         .set_msglevel = mlx4_en_set_msglevel,
2072         .get_coalesce = mlx4_en_get_coalesce,
2073         .set_coalesce = mlx4_en_set_coalesce,
2074         .get_pauseparam = mlx4_en_get_pauseparam,
2075         .set_pauseparam = mlx4_en_set_pauseparam,
2076         .get_ringparam = mlx4_en_get_ringparam,
2077         .set_ringparam = mlx4_en_set_ringparam,
2078         .get_rxnfc = mlx4_en_get_rxnfc,
2079         .set_rxnfc = mlx4_en_set_rxnfc,
2080         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2081         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2082         .get_rxfh = mlx4_en_get_rxfh,
2083         .set_rxfh = mlx4_en_set_rxfh,
2084         .get_channels = mlx4_en_get_channels,
2085         .set_channels = mlx4_en_set_channels,
2086         .get_ts_info = mlx4_en_get_ts_info,
2087         .set_priv_flags = mlx4_en_set_priv_flags,
2088         .get_priv_flags = mlx4_en_get_priv_flags,
2089         .get_tunable            = mlx4_en_get_tunable,
2090         .set_tunable            = mlx4_en_set_tunable,
2091         .get_module_info = mlx4_en_get_module_info,
2092         .get_module_eeprom = mlx4_en_get_module_eeprom
2093 };
2094
2095
2096
2097
2098