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 int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
  51 {
  52         int i;
  53         int err = 0;
  54
  55         for (i = 0; i < priv->tx_ring_num; i++) {
  56                 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
  57                 priv->tx_cq[i]->moder_time = priv->tx_usecs;
  58                 if (priv->port_up) {
  59                         err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
  60                         if (err)
  61                                 return err;
  62                 }
  63         }
  64
  65         if (priv->adaptive_rx_coal)
  66                 return 0;
  67
  68         for (i = 0; i < priv->rx_ring_num; i++) {
  69                 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
  70                 priv->rx_cq[i]->moder_time = priv->rx_usecs;
  71                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
  72                 if (priv->port_up) {
  73                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
  74                         if (err)
  75                                 return err;
  76                 }
  77         }
  78
  79         return err;
  80 }
  81
  82 static void
  83 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  84 {
  85         struct mlx4_en_priv *priv = netdev_priv(dev);
  86         struct mlx4_en_dev *mdev = priv->mdev;
  87
  88         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  89         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  90                 sizeof(drvinfo->version));
  91         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  92                 "%d.%d.%d",
  93                 (u16) (mdev->dev->caps.fw_ver >> 32),
  94                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  95                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  96         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
  97                 sizeof(drvinfo->bus_info));
  98 }
  99
 100 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 101         "blueflame",
 102         "phv-bit"
 103 };
 104
 105 static const char main_strings[][ETH_GSTRING_LEN] = {
 106         /* main statistics */
 107         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 108         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 109         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 110         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 111         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 112         "tx_heartbeat_errors", "tx_window_errors",
 113
 114         /* port statistics */
 115         "tso_packets",
 116         "xmit_more",
 117         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 118         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 119
 120         /* pf statistics */
 121         "pf_rx_packets",
 122         "pf_rx_bytes",
 123         "pf_tx_packets",
 124         "pf_tx_bytes",
 125
 126         /* priority flow control statistics rx */
 127         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 128         "rx_pause_transition_prio_0",
 129         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 130         "rx_pause_transition_prio_1",
 131         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 132         "rx_pause_transition_prio_2",
 133         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 134         "rx_pause_transition_prio_3",
 135         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 136         "rx_pause_transition_prio_4",
 137         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 138         "rx_pause_transition_prio_5",
 139         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 140         "rx_pause_transition_prio_6",
 141         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 142         "rx_pause_transition_prio_7",
 143
 144         /* flow control statistics rx */
 145         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 146
 147         /* priority flow control statistics tx */
 148         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 149         "tx_pause_transition_prio_0",
 150         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 151         "tx_pause_transition_prio_1",
 152         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 153         "tx_pause_transition_prio_2",
 154         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 155         "tx_pause_transition_prio_3",
 156         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 157         "tx_pause_transition_prio_4",
 158         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 159         "tx_pause_transition_prio_5",
 160         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 161         "tx_pause_transition_prio_6",
 162         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 163         "tx_pause_transition_prio_7",
 164
 165         /* flow control statistics tx */
 166         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 167
 168         /* packet statistics */
 169         "rx_multicast_packets",
 170         "rx_broadcast_packets",
 171         "rx_jabbers",
 172         "rx_in_range_length_error",
 173         "rx_out_range_length_error",
 174         "tx_multicast_packets",
 175         "tx_broadcast_packets",
 176         "rx_prio_0_packets", "rx_prio_0_bytes",
 177         "rx_prio_1_packets", "rx_prio_1_bytes",
 178         "rx_prio_2_packets", "rx_prio_2_bytes",
 179         "rx_prio_3_packets", "rx_prio_3_bytes",
 180         "rx_prio_4_packets", "rx_prio_4_bytes",
 181         "rx_prio_5_packets", "rx_prio_5_bytes",
 182         "rx_prio_6_packets", "rx_prio_6_bytes",
 183         "rx_prio_7_packets", "rx_prio_7_bytes",
 184         "rx_novlan_packets", "rx_novlan_bytes",
 185         "tx_prio_0_packets", "tx_prio_0_bytes",
 186         "tx_prio_1_packets", "tx_prio_1_bytes",
 187         "tx_prio_2_packets", "tx_prio_2_bytes",
 188         "tx_prio_3_packets", "tx_prio_3_bytes",
 189         "tx_prio_4_packets", "tx_prio_4_bytes",
 190         "tx_prio_5_packets", "tx_prio_5_bytes",
 191         "tx_prio_6_packets", "tx_prio_6_bytes",
 192         "tx_prio_7_packets", "tx_prio_7_bytes",
 193         "tx_novlan_packets", "tx_novlan_bytes",
 194
 195 };
 196
 197 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 198         "Interrupt Test",
 199         "Link Test",
 200         "Speed Test",
 201         "Register Test",
 202         "Loopback Test",
 203 };
 204
 205 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 206 {
 207         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 208 }
 209
 210 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 211 {
 212         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 213 }
 214
 215 static void mlx4_en_get_wol(struct net_device *netdev,
 216                             struct ethtool_wolinfo *wol)
 217 {
 218         struct mlx4_en_priv *priv = netdev_priv(netdev);
 219         int err = 0;
 220         u64 config = 0;
 221         u64 mask;
 222
 223         if ((priv->port < 1) || (priv->port > 2)) {
 224                 en_err(priv, "Failed to get WoL information\n");
 225                 return;
 226         }
 227
 228         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 229                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 230
 231         if (!(priv->mdev->dev->caps.flags & mask)) {
 232                 wol->supported = 0;
 233                 wol->wolopts = 0;
 234                 return;
 235         }
 236
 237         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 238         if (err) {
 239                 en_err(priv, "Failed to get WoL information\n");
 240                 return;
 241         }
 242
 243         if (config & MLX4_EN_WOL_MAGIC)
 244                 wol->supported = WAKE_MAGIC;
 245         else
 246                 wol->supported = 0;
 247
 248         if (config & MLX4_EN_WOL_ENABLED)
 249                 wol->wolopts = WAKE_MAGIC;
 250         else
 251                 wol->wolopts = 0;
 252 }
 253
 254 static int mlx4_en_set_wol(struct net_device *netdev,
 255                             struct ethtool_wolinfo *wol)
 256 {
 257         struct mlx4_en_priv *priv = netdev_priv(netdev);
 258         u64 config = 0;
 259         int err = 0;
 260         u64 mask;
 261
 262         if ((priv->port < 1) || (priv->port > 2))
 263                 return -EOPNOTSUPP;
 264
 265         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 266                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 267
 268         if (!(priv->mdev->dev->caps.flags & mask))
 269                 return -EOPNOTSUPP;
 270
 271         if (wol->supported & ~WAKE_MAGIC)
 272                 return -EINVAL;
 273
 274         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 275         if (err) {
 276                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 277                 return err;
 278         }
 279
 280         if (wol->wolopts & WAKE_MAGIC) {
 281                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 282                                 MLX4_EN_WOL_MAGIC;
 283         } else {
 284                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 285                 config |= MLX4_EN_WOL_DO_MODIFY;
 286         }
 287
 288         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 289         if (err)
 290                 en_err(priv, "Failed to set WoL information\n");
 291
 292         return err;
 293 }
 294
 295 struct bitmap_iterator {
 296         unsigned long *stats_bitmap;
 297         unsigned int count;
 298         unsigned int iterator;
 299         bool advance_array; /* if set, force no increments */
 300 };
 301
 302 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 303                                         unsigned long *stats_bitmap,
 304                                         int count)
 305 {
 306         h->iterator = 0;
 307         h->advance_array = !bitmap_empty(stats_bitmap, count);
 308         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 309                 : count;
 310         h->stats_bitmap = stats_bitmap;
 311 }
 312
 313 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 314 {
 315         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 316 }
 317
 318 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 319 {
 320         return h->iterator++;
 321 }
 322
 323 static inline unsigned int
 324 bitmap_iterator_count(struct bitmap_iterator *h)
 325 {
 326         return h->count;
 327 }
 328
 329 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 330 {
 331         struct mlx4_en_priv *priv = netdev_priv(dev);
 332         struct bitmap_iterator it;
 333
 334         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 335
 336         switch (sset) {
 337         case ETH_SS_STATS:
 338                 return bitmap_iterator_count(&it) +
 339                         (priv->tx_ring_num * 2) +
 340 #ifdef CONFIG_NET_RX_BUSY_POLL
 341                         (priv->rx_ring_num * 5);
 342 #else
 343                         (priv->rx_ring_num * 2);
 344 #endif
 345         case ETH_SS_TEST:
 346                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 347                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 348         case ETH_SS_PRIV_FLAGS:
 349                 return ARRAY_SIZE(mlx4_en_priv_flags);
 350         default:
 351                 return -EOPNOTSUPP;
 352         }
 353 }
 354
 355 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 356                 struct ethtool_stats *stats, uint64_t *data)
 357 {
 358         struct mlx4_en_priv *priv = netdev_priv(dev);
 359         int index = 0;
 360         int i;
 361         struct bitmap_iterator it;
 362
 363         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 364
 365         spin_lock_bh(&priv->stats_lock);
 366
 367         for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
 368                 if (bitmap_iterator_test(&it))
 369                         data[index++] = ((unsigned long *)&priv->stats)[i];
 370
 371         for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
 372                 if (bitmap_iterator_test(&it))
 373                         data[index++] = ((unsigned long *)&priv->port_stats)[i];
 374
 375         for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
 376                 if (bitmap_iterator_test(&it))
 377                         data[index++] =
 378                                 ((unsigned long *)&priv->pf_stats)[i];
 379
 380         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 381              i++, bitmap_iterator_inc(&it))
 382                 if (bitmap_iterator_test(&it))
 383                         data[index++] =
 384                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 385
 386         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 387                 if (bitmap_iterator_test(&it))
 388                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 389
 390         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 391              i++, bitmap_iterator_inc(&it))
 392                 if (bitmap_iterator_test(&it))
 393                         data[index++] =
 394                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 395
 396         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 397                 if (bitmap_iterator_test(&it))
 398                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 399
 400         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 401                 if (bitmap_iterator_test(&it))
 402                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 403
 404         for (i = 0; i < priv->tx_ring_num; i++) {
 405                 data[index++] = priv->tx_ring[i]->packets;
 406                 data[index++] = priv->tx_ring[i]->bytes;
 407         }
 408         for (i = 0; i < priv->rx_ring_num; i++) {
 409                 data[index++] = priv->rx_ring[i]->packets;
 410                 data[index++] = priv->rx_ring[i]->bytes;
 411 #ifdef CONFIG_NET_RX_BUSY_POLL
 412                 data[index++] = priv->rx_ring[i]->yields;
 413                 data[index++] = priv->rx_ring[i]->misses;
 414                 data[index++] = priv->rx_ring[i]->cleaned;
 415 #endif
 416         }
 417         spin_unlock_bh(&priv->stats_lock);
 418
 419 }
 420
 421 static void mlx4_en_self_test(struct net_device *dev,
 422                               struct ethtool_test *etest, u64 *buf)
 423 {
 424         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 425 }
 426
 427 static void mlx4_en_get_strings(struct net_device *dev,
 428                                 uint32_t stringset, uint8_t *data)
 429 {
 430         struct mlx4_en_priv *priv = netdev_priv(dev);
 431         int index = 0;
 432         int i, strings = 0;
 433         struct bitmap_iterator it;
 434
 435         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 436
 437         switch (stringset) {
 438         case ETH_SS_TEST:
 439                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 440                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 441                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 442                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 443                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 444                 break;
 445
 446         case ETH_SS_STATS:
 447                 /* Add main counters */
 448                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 449                      bitmap_iterator_inc(&it))
 450                         if (bitmap_iterator_test(&it))
 451                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 452                                        main_strings[strings]);
 453
 454                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 455                      bitmap_iterator_inc(&it))
 456                         if (bitmap_iterator_test(&it))
 457                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 458                                        main_strings[strings]);
 459
 460                 for (i = 0; i < NUM_PF_STATS; i++, strings++,
 461                      bitmap_iterator_inc(&it))
 462                         if (bitmap_iterator_test(&it))
 463                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 464                                        main_strings[strings]);
 465
 466                 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 467                      bitmap_iterator_inc(&it))
 468                         if (bitmap_iterator_test(&it))
 469                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 470                                        main_strings[strings]);
 471
 472                 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 473                      bitmap_iterator_inc(&it))
 474                         if (bitmap_iterator_test(&it))
 475                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 476                                        main_strings[strings]);
 477
 478                 for (i = 0; i < priv->tx_ring_num; i++) {
 479                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 480                                 "tx%d_packets", i);
 481                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 482                                 "tx%d_bytes", i);
 483                 }
 484                 for (i = 0; i < priv->rx_ring_num; i++) {
 485                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 486                                 "rx%d_packets", i);
 487                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 488                                 "rx%d_bytes", i);
 489 #ifdef CONFIG_NET_RX_BUSY_POLL
 490                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 491                                 "rx%d_napi_yield", i);
 492                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 493                                 "rx%d_misses", i);
 494                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 495                                 "rx%d_cleaned", i);
 496 #endif
 497                 }
 498                 break;
 499         case ETH_SS_PRIV_FLAGS:
 500                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 501                         strcpy(data + i * ETH_GSTRING_LEN,
 502                                mlx4_en_priv_flags[i]);
 503                 break;
 504
 505         }
 506 }
 507
 508 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 509 {
 510         struct mlx4_en_priv *priv = netdev_priv(dev);
 511         struct mlx4_en_dev *mdev = priv->mdev;
 512         u32 autoneg = AUTONEG_DISABLE;
 513
 514         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 515             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 516                 autoneg = AUTONEG_ENABLE;
 517
 518         return autoneg;
 519 }
 520
 521 static u32 ptys_get_supported_port(struct mlx4_ptys_reg *ptys_reg)
 522 {
 523         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 524
 525         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 526                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 527                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 528                         return SUPPORTED_TP;
 529         }
 530
 531         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 532                          | MLX4_PROT_MASK(MLX4_10GBASE_SR)
 533                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 534                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
 535                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 536                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 537                         return SUPPORTED_FIBRE;
 538         }
 539
 540         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 541                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 542                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 543                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 544                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 545                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 546                         return SUPPORTED_Backplane;
 547         }
 548         return 0;
 549 }
 550
 551 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 552 {
 553         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 554
 555         if (!eth_proto) /* link down */
 556                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 557
 558         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 559                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 560                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 561                         return PORT_TP;
 562         }
 563
 564         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 565                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 566                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 567                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 568                         return PORT_FIBRE;
 569         }
 570
 571         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 572                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 573                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 574                         return PORT_DA;
 575         }
 576
 577         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 578                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 579                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 580                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 581                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 582                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 583                         return PORT_NONE;
 584         }
 585         return PORT_OTHER;
 586 }
 587
 588 #define MLX4_LINK_MODES_SZ \
 589         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 590
 591 enum ethtool_report {
 592         SUPPORTED = 0,
 593         ADVERTISED = 1,
 594         SPEED = 2
 595 };
 596
 597 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 598 static u32 ptys2ethtool_map[MLX4_LINK_MODES_SZ][3] = {
 599         [MLX4_100BASE_TX] = {
 600                 SUPPORTED_100baseT_Full,
 601                 ADVERTISED_100baseT_Full,
 602                 SPEED_100
 603                 },
 604
 605         [MLX4_1000BASE_T] = {
 606                 SUPPORTED_1000baseT_Full,
 607                 ADVERTISED_1000baseT_Full,
 608                 SPEED_1000
 609                 },
 610         [MLX4_1000BASE_CX_SGMII] = {
 611                 SUPPORTED_1000baseKX_Full,
 612                 ADVERTISED_1000baseKX_Full,
 613                 SPEED_1000
 614                 },
 615         [MLX4_1000BASE_KX] = {
 616                 SUPPORTED_1000baseKX_Full,
 617                 ADVERTISED_1000baseKX_Full,
 618                 SPEED_1000
 619                 },
 620
 621         [MLX4_10GBASE_T] = {
 622                 SUPPORTED_10000baseT_Full,
 623                 ADVERTISED_10000baseT_Full,
 624                 SPEED_10000
 625                 },
 626         [MLX4_10GBASE_CX4] = {
 627                 SUPPORTED_10000baseKX4_Full,
 628                 ADVERTISED_10000baseKX4_Full,
 629                 SPEED_10000
 630                 },
 631         [MLX4_10GBASE_KX4] = {
 632                 SUPPORTED_10000baseKX4_Full,
 633                 ADVERTISED_10000baseKX4_Full,
 634                 SPEED_10000
 635                 },
 636         [MLX4_10GBASE_KR] = {
 637                 SUPPORTED_10000baseKR_Full,
 638                 ADVERTISED_10000baseKR_Full,
 639                 SPEED_10000
 640                 },
 641         [MLX4_10GBASE_CR] = {
 642                 SUPPORTED_10000baseKR_Full,
 643                 ADVERTISED_10000baseKR_Full,
 644                 SPEED_10000
 645                 },
 646         [MLX4_10GBASE_SR] = {
 647                 SUPPORTED_10000baseKR_Full,
 648                 ADVERTISED_10000baseKR_Full,
 649                 SPEED_10000
 650                 },
 651
 652         [MLX4_20GBASE_KR2] = {
 653                 SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full,
 654                 ADVERTISED_20000baseMLD2_Full | ADVERTISED_20000baseKR2_Full,
 655                 SPEED_20000
 656                 },
 657
 658         [MLX4_40GBASE_CR4] = {
 659                 SUPPORTED_40000baseCR4_Full,
 660                 ADVERTISED_40000baseCR4_Full,
 661                 SPEED_40000
 662                 },
 663         [MLX4_40GBASE_KR4] = {
 664                 SUPPORTED_40000baseKR4_Full,
 665                 ADVERTISED_40000baseKR4_Full,
 666                 SPEED_40000
 667                 },
 668         [MLX4_40GBASE_SR4] = {
 669                 SUPPORTED_40000baseSR4_Full,
 670                 ADVERTISED_40000baseSR4_Full,
 671                 SPEED_40000
 672                 },
 673
 674         [MLX4_56GBASE_KR4] = {
 675                 SUPPORTED_56000baseKR4_Full,
 676                 ADVERTISED_56000baseKR4_Full,
 677                 SPEED_56000
 678                 },
 679         [MLX4_56GBASE_CR4] = {
 680                 SUPPORTED_56000baseCR4_Full,
 681                 ADVERTISED_56000baseCR4_Full,
 682                 SPEED_56000
 683                 },
 684         [MLX4_56GBASE_SR4] = {
 685                 SUPPORTED_56000baseSR4_Full,
 686                 ADVERTISED_56000baseSR4_Full,
 687                 SPEED_56000
 688                 },
 689 };
 690
 691 static u32 ptys2ethtool_link_modes(u32 eth_proto, enum ethtool_report report)
 692 {
 693         int i;
 694         u32 link_modes = 0;
 695
 696         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 697                 if (eth_proto & MLX4_PROT_MASK(i))
 698                         link_modes |= ptys2ethtool_map[i][report];
 699         }
 700         return link_modes;
 701 }
 702
 703 static u32 ethtool2ptys_link_modes(u32 link_modes, enum ethtool_report report)
 704 {
 705         int i;
 706         u32 ptys_modes = 0;
 707
 708         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 709                 if (ptys2ethtool_map[i][report] & link_modes)
 710                         ptys_modes |= 1 << i;
 711         }
 712         return ptys_modes;
 713 }
 714
 715 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 716 static u32 speed2ptys_link_modes(u32 speed)
 717 {
 718         int i;
 719         u32 ptys_modes = 0;
 720
 721         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 722                 if (ptys2ethtool_map[i][SPEED] == speed)
 723                         ptys_modes |= 1 << i;
 724         }
 725         return ptys_modes;
 726 }
 727
 728 static int ethtool_get_ptys_settings(struct net_device *dev,
 729                                      struct ethtool_cmd *cmd)
 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         cmd->supported = 0;
 758         cmd->advertising = 0;
 759
 760         cmd->supported |= ptys_get_supported_port(&ptys_reg);
 761
 762         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 763         cmd->supported |= ptys2ethtool_link_modes(eth_proto, SUPPORTED);
 764
 765         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 766         cmd->advertising |= ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 767
 768         cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 769         cmd->advertising |= (priv->prof->tx_pause) ? ADVERTISED_Pause : 0;
 770
 771         cmd->advertising |= (priv->prof->tx_pause ^ priv->prof->rx_pause) ?
 772                 ADVERTISED_Asym_Pause : 0;
 773
 774         cmd->port = ptys_get_active_port(&ptys_reg);
 775         cmd->transceiver = (SUPPORTED_TP & cmd->supported) ?
 776                 XCVR_EXTERNAL : XCVR_INTERNAL;
 777
 778         if (mlx4_en_autoneg_get(dev)) {
 779                 cmd->supported |= SUPPORTED_Autoneg;
 780                 cmd->advertising |= ADVERTISED_Autoneg;
 781         }
 782
 783         cmd->autoneg = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 784                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 785
 786         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 787         cmd->lp_advertising = ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 788
 789         cmd->lp_advertising |= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 790                         ADVERTISED_Autoneg : 0;
 791
 792         cmd->phy_address = 0;
 793         cmd->mdio_support = 0;
 794         cmd->maxtxpkt = 0;
 795         cmd->maxrxpkt = 0;
 796         cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 797         cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 798
 799         return ret;
 800 }
 801
 802 static void ethtool_get_default_settings(struct net_device *dev,
 803                                          struct ethtool_cmd *cmd)
 804 {
 805         struct mlx4_en_priv *priv = netdev_priv(dev);
 806         int trans_type;
 807
 808         cmd->autoneg = AUTONEG_DISABLE;
 809         cmd->supported = SUPPORTED_10000baseT_Full;
 810         cmd->advertising = ADVERTISED_10000baseT_Full;
 811         trans_type = priv->port_state.transceiver;
 812
 813         if (trans_type > 0 && trans_type <= 0xC) {
 814                 cmd->port = PORT_FIBRE;
 815                 cmd->transceiver = XCVR_EXTERNAL;
 816                 cmd->supported |= SUPPORTED_FIBRE;
 817                 cmd->advertising |= ADVERTISED_FIBRE;
 818         } else if (trans_type == 0x80 || trans_type == 0) {
 819                 cmd->port = PORT_TP;
 820                 cmd->transceiver = XCVR_INTERNAL;
 821                 cmd->supported |= SUPPORTED_TP;
 822                 cmd->advertising |= ADVERTISED_TP;
 823         } else  {
 824                 cmd->port = -1;
 825                 cmd->transceiver = -1;
 826         }
 827 }
 828
 829 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 830 {
 831         struct mlx4_en_priv *priv = netdev_priv(dev);
 832         int ret = -EINVAL;
 833
 834         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 835                 return -ENOMEM;
 836
 837         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 838                priv->port_state.flags & MLX4_EN_PORT_ANC,
 839                priv->port_state.flags & MLX4_EN_PORT_ANE);
 840
 841         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 842                 ret = ethtool_get_ptys_settings(dev, cmd);
 843         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 844                 ethtool_get_default_settings(dev, cmd);
 845
 846         if (netif_carrier_ok(dev)) {
 847                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 848                 cmd->duplex = DUPLEX_FULL;
 849         } else {
 850                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 851                 cmd->duplex = DUPLEX_UNKNOWN;
 852         }
 853         return 0;
 854 }
 855
 856 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 857 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 858                                    __be32 proto_cap)
 859 {
 860         __be32 proto_admin = 0;
 861
 862         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 863                 proto_admin = proto_cap;
 864                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 865                         be32_to_cpu(proto_cap));
 866         } else {
 867                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 868
 869                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 870                 en_info(priv, "Setting Speed to %d\n", speed);
 871         }
 872         return proto_admin;
 873 }
 874
 875 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 876 {
 877         struct mlx4_en_priv *priv = netdev_priv(dev);
 878         struct mlx4_ptys_reg ptys_reg;
 879         __be32 proto_admin;
 880         int ret;
 881
 882         u32 ptys_adv = ethtool2ptys_link_modes(cmd->advertising, ADVERTISED);
 883         int speed = ethtool_cmd_speed(cmd);
 884
 885         en_dbg(DRV, priv, "Set Speed=%d adv=0x%x autoneg=%d duplex=%d\n",
 886                speed, cmd->advertising, cmd->autoneg, cmd->duplex);
 887
 888         if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 889             (cmd->duplex == DUPLEX_HALF))
 890                 return -EINVAL;
 891
 892         memset(&ptys_reg, 0, sizeof(ptys_reg));
 893         ptys_reg.local_port = priv->port;
 894         ptys_reg.proto_mask = MLX4_PTYS_EN;
 895         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 896                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 897         if (ret) {
 898                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 899                         ret);
 900                 return 0;
 901         }
 902
 903         proto_admin = cmd->autoneg == AUTONEG_ENABLE ?
 904                 cpu_to_be32(ptys_adv) :
 905                 speed_set_ptys_admin(priv, speed,
 906                                      ptys_reg.eth_proto_cap);
 907
 908         proto_admin &= ptys_reg.eth_proto_cap;
 909         if (!proto_admin) {
 910                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 911                 return -EINVAL; /* nothing to change due to bad input */
 912         }
 913
 914         if (proto_admin == ptys_reg.eth_proto_admin)
 915                 return 0; /* Nothing to change */
 916
 917         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 918                be32_to_cpu(proto_admin));
 919
 920         ptys_reg.eth_proto_admin = proto_admin;
 921         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 922                                    &ptys_reg);
 923         if (ret) {
 924                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 925                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 926                 return ret;
 927         }
 928
 929         mutex_lock(&priv->mdev->state_lock);
 930         if (priv->port_up) {
 931                 en_warn(priv, "Port link mode changed, restarting port...\n");
 932                 mlx4_en_stop_port(dev, 1);
 933                 if (mlx4_en_start_port(dev))
 934                         en_err(priv, "Failed restarting port %d\n", priv->port);
 935         }
 936         mutex_unlock(&priv->mdev->state_lock);
 937         return 0;
 938 }
 939
 940 static int mlx4_en_get_coalesce(struct net_device *dev,
 941                               struct ethtool_coalesce *coal)
 942 {
 943         struct mlx4_en_priv *priv = netdev_priv(dev);
 944
 945         coal->tx_coalesce_usecs = priv->tx_usecs;
 946         coal->tx_max_coalesced_frames = priv->tx_frames;
 947         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 948
 949         coal->rx_coalesce_usecs = priv->rx_usecs;
 950         coal->rx_max_coalesced_frames = priv->rx_frames;
 951
 952         coal->pkt_rate_low = priv->pkt_rate_low;
 953         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 954         coal->pkt_rate_high = priv->pkt_rate_high;
 955         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 956         coal->rate_sample_interval = priv->sample_interval;
 957         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 958
 959         return 0;
 960 }
 961
 962 static int mlx4_en_set_coalesce(struct net_device *dev,
 963                               struct ethtool_coalesce *coal)
 964 {
 965         struct mlx4_en_priv *priv = netdev_priv(dev);
 966
 967         if (!coal->tx_max_coalesced_frames_irq)
 968                 return -EINVAL;
 969
 970         if (coal->tx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
 971             coal->rx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
 972             coal->rx_coalesce_usecs_low > MLX4_EN_MAX_COAL_TIME ||
 973             coal->rx_coalesce_usecs_high > MLX4_EN_MAX_COAL_TIME) {
 974                 netdev_info(dev, "%s: maximum coalesce time supported is %d usecs\n",
 975                             __func__, MLX4_EN_MAX_COAL_TIME);
 976                 return -ERANGE;
 977         }
 978
 979         if (coal->tx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS ||
 980             coal->rx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS) {
 981                 netdev_info(dev, "%s: maximum coalesced frames supported is %d\n",
 982                             __func__, MLX4_EN_MAX_COAL_PKTS);
 983                 return -ERANGE;
 984         }
 985
 986         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 987                            MLX4_EN_AUTO_CONF) ?
 988                                 MLX4_EN_RX_COAL_TARGET :
 989                                 coal->rx_max_coalesced_frames;
 990         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 991                           MLX4_EN_AUTO_CONF) ?
 992                                 MLX4_EN_RX_COAL_TIME :
 993                                 coal->rx_coalesce_usecs;
 994
 995         /* Setting TX coalescing parameters */
 996         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 997             coal->tx_max_coalesced_frames != priv->tx_frames) {
 998                 priv->tx_usecs = coal->tx_coalesce_usecs;
 999                 priv->tx_frames = coal->tx_max_coalesced_frames;
1000         }
1001
1002         /* Set adaptive coalescing params */
1003         priv->pkt_rate_low = coal->pkt_rate_low;
1004         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
1005         priv->pkt_rate_high = coal->pkt_rate_high;
1006         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
1007         priv->sample_interval = coal->rate_sample_interval;
1008         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
1009         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
1010
1011         return mlx4_en_moderation_update(priv);
1012 }
1013
1014 static int mlx4_en_set_pauseparam(struct net_device *dev,
1015                                 struct ethtool_pauseparam *pause)
1016 {
1017         struct mlx4_en_priv *priv = netdev_priv(dev);
1018         struct mlx4_en_dev *mdev = priv->mdev;
1019         int err;
1020
1021         if (pause->autoneg)
1022                 return -EINVAL;
1023
1024         priv->prof->tx_pause = pause->tx_pause != 0;
1025         priv->prof->rx_pause = pause->rx_pause != 0;
1026         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1027                                     priv->rx_skb_size + ETH_FCS_LEN,
1028                                     priv->prof->tx_pause,
1029                                     priv->prof->tx_ppp,
1030                                     priv->prof->rx_pause,
1031                                     priv->prof->rx_ppp);
1032         if (err)
1033                 en_err(priv, "Failed setting pause params\n");
1034         else
1035                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1036                                                 priv->prof->rx_ppp,
1037                                                 priv->prof->rx_pause,
1038                                                 priv->prof->tx_ppp,
1039                                                 priv->prof->tx_pause);
1040
1041         return err;
1042 }
1043
1044 static void mlx4_en_get_pauseparam(struct net_device *dev,
1045                                  struct ethtool_pauseparam *pause)
1046 {
1047         struct mlx4_en_priv *priv = netdev_priv(dev);
1048
1049         pause->tx_pause = priv->prof->tx_pause;
1050         pause->rx_pause = priv->prof->rx_pause;
1051 }
1052
1053 static int mlx4_en_set_ringparam(struct net_device *dev,
1054                                  struct ethtool_ringparam *param)
1055 {
1056         struct mlx4_en_priv *priv = netdev_priv(dev);
1057         struct mlx4_en_dev *mdev = priv->mdev;
1058         u32 rx_size, tx_size;
1059         int port_up = 0;
1060         int err = 0;
1061
1062         if (param->rx_jumbo_pending || param->rx_mini_pending)
1063                 return -EINVAL;
1064
1065         rx_size = roundup_pow_of_two(param->rx_pending);
1066         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1067         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1068         tx_size = roundup_pow_of_two(param->tx_pending);
1069         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1070         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1071
1072         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1073                                         priv->rx_ring[0]->size) &&
1074             tx_size == priv->tx_ring[0]->size)
1075                 return 0;
1076
1077         mutex_lock(&mdev->state_lock);
1078         if (priv->port_up) {
1079                 port_up = 1;
1080                 mlx4_en_stop_port(dev, 1);
1081         }
1082
1083         mlx4_en_free_resources(priv);
1084
1085         priv->prof->tx_ring_size = tx_size;
1086         priv->prof->rx_ring_size = rx_size;
1087
1088         err = mlx4_en_alloc_resources(priv);
1089         if (err) {
1090                 en_err(priv, "Failed reallocating port resources\n");
1091                 goto out;
1092         }
1093         if (port_up) {
1094                 err = mlx4_en_start_port(dev);
1095                 if (err)
1096                         en_err(priv, "Failed starting port\n");
1097         }
1098
1099         err = mlx4_en_moderation_update(priv);
1100
1101 out:
1102         mutex_unlock(&mdev->state_lock);
1103         return err;
1104 }
1105
1106 static void mlx4_en_get_ringparam(struct net_device *dev,
1107                                   struct ethtool_ringparam *param)
1108 {
1109         struct mlx4_en_priv *priv = netdev_priv(dev);
1110
1111         memset(param, 0, sizeof(*param));
1112         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1113         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1114         param->rx_pending = priv->port_up ?
1115                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1116         param->tx_pending = priv->tx_ring[0]->size;
1117 }
1118
1119 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1120 {
1121         struct mlx4_en_priv *priv = netdev_priv(dev);
1122
1123         return priv->rx_ring_num;
1124 }
1125
1126 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1127 {
1128         return MLX4_EN_RSS_KEY_SIZE;
1129 }
1130
1131 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1132 {
1133         struct mlx4_en_priv *priv = netdev_priv(dev);
1134
1135         /* check if requested function is supported by the device */
1136         if (hfunc == ETH_RSS_HASH_TOP) {
1137                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1138                         return -EINVAL;
1139                 if (!(dev->features & NETIF_F_RXHASH))
1140                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1141                 return 0;
1142         } else if (hfunc == ETH_RSS_HASH_XOR) {
1143                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1144                         return -EINVAL;
1145                 if (dev->features & NETIF_F_RXHASH)
1146                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1147                 return 0;
1148         }
1149
1150         return -EINVAL;
1151 }
1152
1153 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1154                             u8 *hfunc)
1155 {
1156         struct mlx4_en_priv *priv = netdev_priv(dev);
1157         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
1158         int rss_rings;
1159         size_t n = priv->rx_ring_num;
1160         int err = 0;
1161
1162         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
1163         rss_rings = 1 << ilog2(rss_rings);
1164
1165         while (n--) {
1166                 if (!ring_index)
1167                         break;
1168                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
1169                         rss_map->base_qpn;
1170         }
1171         if (key)
1172                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1173         if (hfunc)
1174                 *hfunc = priv->rss_hash_fn;
1175         return err;
1176 }
1177
1178 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1179                             const u8 *key, const u8 hfunc)
1180 {
1181         struct mlx4_en_priv *priv = netdev_priv(dev);
1182         struct mlx4_en_dev *mdev = priv->mdev;
1183         int port_up = 0;
1184         int err = 0;
1185         int i;
1186         int rss_rings = 0;
1187
1188         /* Calculate RSS table size and make sure flows are spread evenly
1189          * between rings
1190          */
1191         for (i = 0; i < priv->rx_ring_num; i++) {
1192                 if (!ring_index)
1193                         continue;
1194                 if (i > 0 && !ring_index[i] && !rss_rings)
1195                         rss_rings = i;
1196
1197                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
1198                         return -EINVAL;
1199         }
1200
1201         if (!rss_rings)
1202                 rss_rings = priv->rx_ring_num;
1203
1204         /* RSS table size must be an order of 2 */
1205         if (!is_power_of_2(rss_rings))
1206                 return -EINVAL;
1207
1208         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1209                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1210                 if (err)
1211                         return err;
1212         }
1213
1214         mutex_lock(&mdev->state_lock);
1215         if (priv->port_up) {
1216                 port_up = 1;
1217                 mlx4_en_stop_port(dev, 1);
1218         }
1219
1220         if (ring_index)
1221                 priv->prof->rss_rings = rss_rings;
1222         if (key)
1223                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1224         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1225                 priv->rss_hash_fn = hfunc;
1226
1227         if (port_up) {
1228                 err = mlx4_en_start_port(dev);
1229                 if (err)
1230                         en_err(priv, "Failed starting port\n");
1231         }
1232
1233         mutex_unlock(&mdev->state_lock);
1234         return err;
1235 }
1236
1237 #define all_zeros_or_all_ones(field)            \
1238         ((field) == 0 || (field) == (__force typeof(field))-1)
1239
1240 static int mlx4_en_validate_flow(struct net_device *dev,
1241                                  struct ethtool_rxnfc *cmd)
1242 {
1243         struct ethtool_usrip4_spec *l3_mask;
1244         struct ethtool_tcpip4_spec *l4_mask;
1245         struct ethhdr *eth_mask;
1246
1247         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1248                 return -EINVAL;
1249
1250         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1251                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1252                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1253                         return -EINVAL;
1254         }
1255
1256         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1257         case TCP_V4_FLOW:
1258         case UDP_V4_FLOW:
1259                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1260                         return -EINVAL;
1261                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1262                 /* don't allow mask which isn't all 0 or 1 */
1263                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1264                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1265                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1266                     !all_zeros_or_all_ones(l4_mask->pdst))
1267                         return -EINVAL;
1268                 break;
1269         case IP_USER_FLOW:
1270                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1271                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1272                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1273                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1274                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1275                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1276                         return -EINVAL;
1277                 break;
1278         case ETHER_FLOW:
1279                 eth_mask = &cmd->fs.m_u.ether_spec;
1280                 /* source mac mask must not be set */
1281                 if (!is_zero_ether_addr(eth_mask->h_source))
1282                         return -EINVAL;
1283
1284                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1285                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1286                         return -EINVAL;
1287
1288                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1289                         return -EINVAL;
1290                 break;
1291         default:
1292                 return -EINVAL;
1293         }
1294
1295         if ((cmd->fs.flow_type & FLOW_EXT)) {
1296                 if (cmd->fs.m_ext.vlan_etype ||
1297                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1298                       0 ||
1299                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1300                       cpu_to_be16(VLAN_VID_MASK)))
1301                         return -EINVAL;
1302
1303                 if (cmd->fs.m_ext.vlan_tci) {
1304                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1305                                 return -EINVAL;
1306
1307                 }
1308         }
1309
1310         return 0;
1311 }
1312
1313 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1314                                         struct list_head *rule_list_h,
1315                                         struct mlx4_spec_list *spec_l2,
1316                                         unsigned char *mac)
1317 {
1318         int err = 0;
1319         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1320
1321         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1322         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1323         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1324
1325         if ((cmd->fs.flow_type & FLOW_EXT) &&
1326             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1327                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1328                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1329         }
1330
1331         list_add_tail(&spec_l2->list, rule_list_h);
1332
1333         return err;
1334 }
1335
1336 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1337                                                 struct ethtool_rxnfc *cmd,
1338                                                 struct list_head *rule_list_h,
1339                                                 struct mlx4_spec_list *spec_l2,
1340                                                 __be32 ipv4_dst)
1341 {
1342 #ifdef CONFIG_INET
1343         unsigned char mac[ETH_ALEN];
1344
1345         if (!ipv4_is_multicast(ipv4_dst)) {
1346                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1347                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1348                 else
1349                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1350         } else {
1351                 ip_eth_mc_map(ipv4_dst, mac);
1352         }
1353
1354         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1355 #else
1356         return -EINVAL;
1357 #endif
1358 }
1359
1360 static int add_ip_rule(struct mlx4_en_priv *priv,
1361                        struct ethtool_rxnfc *cmd,
1362                        struct list_head *list_h)
1363 {
1364         int err;
1365         struct mlx4_spec_list *spec_l2 = NULL;
1366         struct mlx4_spec_list *spec_l3 = NULL;
1367         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1368
1369         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1370         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1371         if (!spec_l2 || !spec_l3) {
1372                 err = -ENOMEM;
1373                 goto free_spec;
1374         }
1375
1376         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1377                                                    cmd->fs.h_u.
1378                                                    usr_ip4_spec.ip4dst);
1379         if (err)
1380                 goto free_spec;
1381         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1382         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1383         if (l3_mask->ip4src)
1384                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1385         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1386         if (l3_mask->ip4dst)
1387                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1388         list_add_tail(&spec_l3->list, list_h);
1389
1390         return 0;
1391
1392 free_spec:
1393         kfree(spec_l2);
1394         kfree(spec_l3);
1395         return err;
1396 }
1397
1398 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1399                              struct ethtool_rxnfc *cmd,
1400                              struct list_head *list_h, int proto)
1401 {
1402         int err;
1403         struct mlx4_spec_list *spec_l2 = NULL;
1404         struct mlx4_spec_list *spec_l3 = NULL;
1405         struct mlx4_spec_list *spec_l4 = NULL;
1406         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1407
1408         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1409         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1410         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1411         if (!spec_l2 || !spec_l3 || !spec_l4) {
1412                 err = -ENOMEM;
1413                 goto free_spec;
1414         }
1415
1416         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1417
1418         if (proto == TCP_V4_FLOW) {
1419                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1420                                                            spec_l2,
1421                                                            cmd->fs.h_u.
1422                                                            tcp_ip4_spec.ip4dst);
1423                 if (err)
1424                         goto free_spec;
1425                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1426                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1427                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1428                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1429                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1430         } else {
1431                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1432                                                            spec_l2,
1433                                                            cmd->fs.h_u.
1434                                                            udp_ip4_spec.ip4dst);
1435                 if (err)
1436                         goto free_spec;
1437                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1438                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1439                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1440                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1441                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1442         }
1443
1444         if (l4_mask->ip4src)
1445                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1446         if (l4_mask->ip4dst)
1447                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1448
1449         if (l4_mask->psrc)
1450                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1451         if (l4_mask->pdst)
1452                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1453
1454         list_add_tail(&spec_l3->list, list_h);
1455         list_add_tail(&spec_l4->list, list_h);
1456
1457         return 0;
1458
1459 free_spec:
1460         kfree(spec_l2);
1461         kfree(spec_l3);
1462         kfree(spec_l4);
1463         return err;
1464 }
1465
1466 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1467                                              struct ethtool_rxnfc *cmd,
1468                                              struct list_head *rule_list_h)
1469 {
1470         int err;
1471         struct ethhdr *eth_spec;
1472         struct mlx4_spec_list *spec_l2;
1473         struct mlx4_en_priv *priv = netdev_priv(dev);
1474
1475         err = mlx4_en_validate_flow(dev, cmd);
1476         if (err)
1477                 return err;
1478
1479         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1480         case ETHER_FLOW:
1481                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1482                 if (!spec_l2)
1483                         return -ENOMEM;
1484
1485                 eth_spec = &cmd->fs.h_u.ether_spec;
1486                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1487                                              &eth_spec->h_dest[0]);
1488                 spec_l2->eth.ether_type = eth_spec->h_proto;
1489                 if (eth_spec->h_proto)
1490                         spec_l2->eth.ether_type_enable = 1;
1491                 break;
1492         case IP_USER_FLOW:
1493                 err = add_ip_rule(priv, cmd, rule_list_h);
1494                 break;
1495         case TCP_V4_FLOW:
1496                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1497                 break;
1498         case UDP_V4_FLOW:
1499                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1500                 break;
1501         }
1502
1503         return err;
1504 }
1505
1506 static int mlx4_en_flow_replace(struct net_device *dev,
1507                                 struct ethtool_rxnfc *cmd)
1508 {
1509         int err;
1510         struct mlx4_en_priv *priv = netdev_priv(dev);
1511         struct ethtool_flow_id *loc_rule;
1512         struct mlx4_spec_list *spec, *tmp_spec;
1513         u32 qpn;
1514         u64 reg_id;
1515
1516         struct mlx4_net_trans_rule rule = {
1517                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1518                 .exclusive = 0,
1519                 .allow_loopback = 1,
1520                 .promisc_mode = MLX4_FS_REGULAR,
1521         };
1522
1523         rule.port = priv->port;
1524         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1525         INIT_LIST_HEAD(&rule.list);
1526
1527         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1528         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1529                 qpn = priv->drop_qp.qpn;
1530         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1531                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1532         } else {
1533                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1534                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1535                                 cmd->fs.ring_cookie);
1536                         return -EINVAL;
1537                 }
1538                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1539                 if (!qpn) {
1540                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1541                                 cmd->fs.ring_cookie);
1542                         return -EINVAL;
1543                 }
1544         }
1545         rule.qpn = qpn;
1546         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1547         if (err)
1548                 goto out_free_list;
1549
1550         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1551         if (loc_rule->id) {
1552                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1553                 if (err) {
1554                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1555                                cmd->fs.location, loc_rule->id);
1556                         goto out_free_list;
1557                 }
1558                 loc_rule->id = 0;
1559                 memset(&loc_rule->flow_spec, 0,
1560                        sizeof(struct ethtool_rx_flow_spec));
1561                 list_del(&loc_rule->list);
1562         }
1563         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1564         if (err) {
1565                 en_err(priv, "Fail to attach network rule at location %d\n",
1566                        cmd->fs.location);
1567                 goto out_free_list;
1568         }
1569         loc_rule->id = reg_id;
1570         memcpy(&loc_rule->flow_spec, &cmd->fs,
1571                sizeof(struct ethtool_rx_flow_spec));
1572         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1573
1574 out_free_list:
1575         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1576                 list_del(&spec->list);
1577                 kfree(spec);
1578         }
1579         return err;
1580 }
1581
1582 static int mlx4_en_flow_detach(struct net_device *dev,
1583                                struct ethtool_rxnfc *cmd)
1584 {
1585         int err = 0;
1586         struct ethtool_flow_id *rule;
1587         struct mlx4_en_priv *priv = netdev_priv(dev);
1588
1589         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1590                 return -EINVAL;
1591
1592         rule = &priv->ethtool_rules[cmd->fs.location];
1593         if (!rule->id) {
1594                 err =  -ENOENT;
1595                 goto out;
1596         }
1597
1598         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1599         if (err) {
1600                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1601                        cmd->fs.location, rule->id);
1602                 goto out;
1603         }
1604         rule->id = 0;
1605         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1606         list_del(&rule->list);
1607 out:
1608         return err;
1609
1610 }
1611
1612 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1613                             int loc)
1614 {
1615         int err = 0;
1616         struct ethtool_flow_id *rule;
1617         struct mlx4_en_priv *priv = netdev_priv(dev);
1618
1619         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1620                 return -EINVAL;
1621
1622         rule = &priv->ethtool_rules[loc];
1623         if (rule->id)
1624                 memcpy(&cmd->fs, &rule->flow_spec,
1625                        sizeof(struct ethtool_rx_flow_spec));
1626         else
1627                 err = -ENOENT;
1628
1629         return err;
1630 }
1631
1632 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1633 {
1634
1635         int i, res = 0;
1636         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1637                 if (priv->ethtool_rules[i].id)
1638                         res++;
1639         }
1640         return res;
1641
1642 }
1643
1644 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1645                              u32 *rule_locs)
1646 {
1647         struct mlx4_en_priv *priv = netdev_priv(dev);
1648         struct mlx4_en_dev *mdev = priv->mdev;
1649         int err = 0;
1650         int i = 0, priority = 0;
1651
1652         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1653              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1654              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1655             (mdev->dev->caps.steering_mode !=
1656              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1657                 return -EINVAL;
1658
1659         switch (cmd->cmd) {
1660         case ETHTOOL_GRXRINGS:
1661                 cmd->data = priv->rx_ring_num;
1662                 break;
1663         case ETHTOOL_GRXCLSRLCNT:
1664                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1665                 break;
1666         case ETHTOOL_GRXCLSRULE:
1667                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1668                 break;
1669         case ETHTOOL_GRXCLSRLALL:
1670                 cmd->data = MAX_NUM_OF_FS_RULES;
1671                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1672                         err = mlx4_en_get_flow(dev, cmd, i);
1673                         if (!err)
1674                                 rule_locs[priority++] = i;
1675                         i++;
1676                 }
1677                 err = 0;
1678                 break;
1679         default:
1680                 err = -EOPNOTSUPP;
1681                 break;
1682         }
1683
1684         return err;
1685 }
1686
1687 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1688 {
1689         int err = 0;
1690         struct mlx4_en_priv *priv = netdev_priv(dev);
1691         struct mlx4_en_dev *mdev = priv->mdev;
1692
1693         if (mdev->dev->caps.steering_mode !=
1694             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1695                 return -EINVAL;
1696
1697         switch (cmd->cmd) {
1698         case ETHTOOL_SRXCLSRLINS:
1699                 err = mlx4_en_flow_replace(dev, cmd);
1700                 break;
1701         case ETHTOOL_SRXCLSRLDEL:
1702                 err = mlx4_en_flow_detach(dev, cmd);
1703                 break;
1704         default:
1705                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1706                 return -EINVAL;
1707         }
1708
1709         return err;
1710 }
1711
1712 static void mlx4_en_get_channels(struct net_device *dev,
1713                                  struct ethtool_channels *channel)
1714 {
1715         struct mlx4_en_priv *priv = netdev_priv(dev);
1716
1717         memset(channel, 0, sizeof(*channel));
1718
1719         channel->max_rx = MAX_RX_RINGS;
1720         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1721
1722         channel->rx_count = priv->rx_ring_num;
1723         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1724 }
1725
1726 static int mlx4_en_set_channels(struct net_device *dev,
1727                                 struct ethtool_channels *channel)
1728 {
1729         struct mlx4_en_priv *priv = netdev_priv(dev);
1730         struct mlx4_en_dev *mdev = priv->mdev;
1731         int port_up = 0;
1732         int err = 0;
1733
1734         if (channel->other_count || channel->combined_count ||
1735             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1736             channel->rx_count > MAX_RX_RINGS ||
1737             !channel->tx_count || !channel->rx_count)
1738                 return -EINVAL;
1739
1740         mutex_lock(&mdev->state_lock);
1741         if (priv->port_up) {
1742                 port_up = 1;
1743                 mlx4_en_stop_port(dev, 1);
1744         }
1745
1746         mlx4_en_free_resources(priv);
1747
1748         priv->num_tx_rings_p_up = channel->tx_count;
1749         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1750         priv->rx_ring_num = channel->rx_count;
1751
1752         err = mlx4_en_alloc_resources(priv);
1753         if (err) {
1754                 en_err(priv, "Failed reallocating port resources\n");
1755                 goto out;
1756         }
1757
1758         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1759         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1760
1761         if (dev->num_tc)
1762                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1763
1764         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1765         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1766
1767         if (port_up) {
1768                 err = mlx4_en_start_port(dev);
1769                 if (err)
1770                         en_err(priv, "Failed starting port\n");
1771         }
1772
1773         err = mlx4_en_moderation_update(priv);
1774
1775 out:
1776         mutex_unlock(&mdev->state_lock);
1777         return err;
1778 }
1779
1780 static int mlx4_en_get_ts_info(struct net_device *dev,
1781                                struct ethtool_ts_info *info)
1782 {
1783         struct mlx4_en_priv *priv = netdev_priv(dev);
1784         struct mlx4_en_dev *mdev = priv->mdev;
1785         int ret;
1786
1787         ret = ethtool_op_get_ts_info(dev, info);
1788         if (ret)
1789                 return ret;
1790
1791         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1792                 info->so_timestamping |=
1793                         SOF_TIMESTAMPING_TX_HARDWARE |
1794                         SOF_TIMESTAMPING_RX_HARDWARE |
1795                         SOF_TIMESTAMPING_RAW_HARDWARE;
1796
1797                 info->tx_types =
1798                         (1 << HWTSTAMP_TX_OFF) |
1799                         (1 << HWTSTAMP_TX_ON);
1800
1801                 info->rx_filters =
1802                         (1 << HWTSTAMP_FILTER_NONE) |
1803                         (1 << HWTSTAMP_FILTER_ALL);
1804
1805                 if (mdev->ptp_clock)
1806                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1807         }
1808
1809         return ret;
1810 }
1811
1812 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1813 {
1814         struct mlx4_en_priv *priv = netdev_priv(dev);
1815         struct mlx4_en_dev *mdev = priv->mdev;
1816         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1817         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1818         bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1819         bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1820         int i;
1821         int ret = 0;
1822
1823         if (bf_enabled_new != bf_enabled_old) {
1824                 if (bf_enabled_new) {
1825                         bool bf_supported = true;
1826
1827                         for (i = 0; i < priv->tx_ring_num; i++)
1828                                 bf_supported &= priv->tx_ring[i]->bf_alloced;
1829
1830                         if (!bf_supported) {
1831                                 en_err(priv, "BlueFlame is not supported\n");
1832                                 return -EINVAL;
1833                         }
1834
1835                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1836                 } else {
1837                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1838                 }
1839
1840                 for (i = 0; i < priv->tx_ring_num; i++)
1841                         priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1842
1843                 en_info(priv, "BlueFlame %s\n",
1844                         bf_enabled_new ?  "Enabled" : "Disabled");
1845         }
1846
1847         if (phv_enabled_new != phv_enabled_old) {
1848                 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1849                 if (ret)
1850                         return ret;
1851                 else if (phv_enabled_new)
1852                         priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1853                 else
1854                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1855                 en_info(priv, "PHV bit %s\n",
1856                         phv_enabled_new ?  "Enabled" : "Disabled");
1857         }
1858         return 0;
1859 }
1860
1861 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1862 {
1863         struct mlx4_en_priv *priv = netdev_priv(dev);
1864
1865         return priv->pflags;
1866 }
1867
1868 static int mlx4_en_get_tunable(struct net_device *dev,
1869                                const struct ethtool_tunable *tuna,
1870                                void *data)
1871 {
1872         const struct mlx4_en_priv *priv = netdev_priv(dev);
1873         int ret = 0;
1874
1875         switch (tuna->id) {
1876         case ETHTOOL_TX_COPYBREAK:
1877                 *(u32 *)data = priv->prof->inline_thold;
1878                 break;
1879         default:
1880                 ret = -EINVAL;
1881                 break;
1882         }
1883
1884         return ret;
1885 }
1886
1887 static int mlx4_en_set_tunable(struct net_device *dev,
1888                                const struct ethtool_tunable *tuna,
1889                                const void *data)
1890 {
1891         struct mlx4_en_priv *priv = netdev_priv(dev);
1892         int val, ret = 0;
1893
1894         switch (tuna->id) {
1895         case ETHTOOL_TX_COPYBREAK:
1896                 val = *(u32 *)data;
1897                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1898                         ret = -EINVAL;
1899                 else
1900                         priv->prof->inline_thold = val;
1901                 break;
1902         default:
1903                 ret = -EINVAL;
1904                 break;
1905         }
1906
1907         return ret;
1908 }
1909
1910 static int mlx4_en_get_module_info(struct net_device *dev,
1911                                    struct ethtool_modinfo *modinfo)
1912 {
1913         struct mlx4_en_priv *priv = netdev_priv(dev);
1914         struct mlx4_en_dev *mdev = priv->mdev;
1915         int ret;
1916         u8 data[4];
1917
1918         /* Read first 2 bytes to get Module & REV ID */
1919         ret = mlx4_get_module_info(mdev->dev, priv->port,
1920                                    0/*offset*/, 2/*size*/, data);
1921         if (ret < 2)
1922                 return -EIO;
1923
1924         switch (data[0] /* identifier */) {
1925         case MLX4_MODULE_ID_QSFP:
1926                 modinfo->type = ETH_MODULE_SFF_8436;
1927                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1928                 break;
1929         case MLX4_MODULE_ID_QSFP_PLUS:
1930                 if (data[1] >= 0x3) { /* revision id */
1931                         modinfo->type = ETH_MODULE_SFF_8636;
1932                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1933                 } else {
1934                         modinfo->type = ETH_MODULE_SFF_8436;
1935                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1936                 }
1937                 break;
1938         case MLX4_MODULE_ID_QSFP28:
1939                 modinfo->type = ETH_MODULE_SFF_8636;
1940                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1941                 break;
1942         case MLX4_MODULE_ID_SFP:
1943                 modinfo->type = ETH_MODULE_SFF_8472;
1944                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1945                 break;
1946         default:
1947                 return -ENOSYS;
1948         }
1949
1950         return 0;
1951 }
1952
1953 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1954                                      struct ethtool_eeprom *ee,
1955                                      u8 *data)
1956 {
1957         struct mlx4_en_priv *priv = netdev_priv(dev);
1958         struct mlx4_en_dev *mdev = priv->mdev;
1959         int offset = ee->offset;
1960         int i = 0, ret;
1961
1962         if (ee->len == 0)
1963                 return -EINVAL;
1964
1965         memset(data, 0, ee->len);
1966
1967         while (i < ee->len) {
1968                 en_dbg(DRV, priv,
1969                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1970                        i, offset, ee->len - i);
1971
1972                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1973                                            offset, ee->len - i, data + i);
1974
1975                 if (!ret) /* Done reading */
1976                         return 0;
1977
1978                 if (ret < 0) {
1979                         en_err(priv,
1980                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1981                                i, offset, ee->len - i, ret);
1982                         return 0;
1983                 }
1984
1985                 i += ret;
1986                 offset += ret;
1987         }
1988         return 0;
1989 }
1990
1991 static int mlx4_en_set_phys_id(struct net_device *dev,
1992                                enum ethtool_phys_id_state state)
1993 {
1994         int err;
1995         u16 beacon_duration;
1996         struct mlx4_en_priv *priv = netdev_priv(dev);
1997         struct mlx4_en_dev *mdev = priv->mdev;
1998
1999         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
2000                 return -EOPNOTSUPP;
2001
2002         switch (state) {
2003         case ETHTOOL_ID_ACTIVE:
2004                 beacon_duration = PORT_BEACON_MAX_LIMIT;
2005                 break;
2006         case ETHTOOL_ID_INACTIVE:
2007                 beacon_duration = 0;
2008                 break;
2009         default:
2010                 return -EOPNOTSUPP;
2011         }
2012
2013         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
2014         return err;
2015 }
2016
2017 const struct ethtool_ops mlx4_en_ethtool_ops = {
2018         .get_drvinfo = mlx4_en_get_drvinfo,
2019         .get_settings = mlx4_en_get_settings,
2020         .set_settings = mlx4_en_set_settings,
2021         .get_link = ethtool_op_get_link,
2022         .get_strings = mlx4_en_get_strings,
2023         .get_sset_count = mlx4_en_get_sset_count,
2024         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2025         .self_test = mlx4_en_self_test,
2026         .set_phys_id = mlx4_en_set_phys_id,
2027         .get_wol = mlx4_en_get_wol,
2028         .set_wol = mlx4_en_set_wol,
2029         .get_msglevel = mlx4_en_get_msglevel,
2030         .set_msglevel = mlx4_en_set_msglevel,
2031         .get_coalesce = mlx4_en_get_coalesce,
2032         .set_coalesce = mlx4_en_set_coalesce,
2033         .get_pauseparam = mlx4_en_get_pauseparam,
2034         .set_pauseparam = mlx4_en_set_pauseparam,
2035         .get_ringparam = mlx4_en_get_ringparam,
2036         .set_ringparam = mlx4_en_set_ringparam,
2037         .get_rxnfc = mlx4_en_get_rxnfc,
2038         .set_rxnfc = mlx4_en_set_rxnfc,
2039         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2040         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2041         .get_rxfh = mlx4_en_get_rxfh,
2042         .set_rxfh = mlx4_en_set_rxfh,
2043         .get_channels = mlx4_en_get_channels,
2044         .set_channels = mlx4_en_set_channels,
2045         .get_ts_info = mlx4_en_get_ts_info,
2046         .set_priv_flags = mlx4_en_set_priv_flags,
2047         .get_priv_flags = mlx4_en_get_priv_flags,
2048         .get_tunable            = mlx4_en_get_tunable,
2049         .set_tunable            = mlx4_en_set_tunable,
2050         .get_module_info = mlx4_en_get_module_info,
2051         .get_module_eeprom = mlx4_en_get_module_eeprom
2052 };
2053
2054
2055
2056
2057