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;
  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         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 971                            MLX4_EN_AUTO_CONF) ?
 972                                 MLX4_EN_RX_COAL_TARGET :
 973                                 coal->rx_max_coalesced_frames;
 974         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 975                           MLX4_EN_AUTO_CONF) ?
 976                                 MLX4_EN_RX_COAL_TIME :
 977                                 coal->rx_coalesce_usecs;
 978
 979         /* Setting TX coalescing parameters */
 980         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 981             coal->tx_max_coalesced_frames != priv->tx_frames) {
 982                 priv->tx_usecs = coal->tx_coalesce_usecs;
 983                 priv->tx_frames = coal->tx_max_coalesced_frames;
 984         }
 985
 986         /* Set adaptive coalescing params */
 987         priv->pkt_rate_low = coal->pkt_rate_low;
 988         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 989         priv->pkt_rate_high = coal->pkt_rate_high;
 990         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 991         priv->sample_interval = coal->rate_sample_interval;
 992         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 993         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
 994
 995         return mlx4_en_moderation_update(priv);
 996 }
 997
 998 static int mlx4_en_set_pauseparam(struct net_device *dev,
 999                                 struct ethtool_pauseparam *pause)
1000 {
1001         struct mlx4_en_priv *priv = netdev_priv(dev);
1002         struct mlx4_en_dev *mdev = priv->mdev;
1003         int err;
1004
1005         if (pause->autoneg)
1006                 return -EINVAL;
1007
1008         priv->prof->tx_pause = pause->tx_pause != 0;
1009         priv->prof->rx_pause = pause->rx_pause != 0;
1010         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1011                                     priv->rx_skb_size + ETH_FCS_LEN,
1012                                     priv->prof->tx_pause,
1013                                     priv->prof->tx_ppp,
1014                                     priv->prof->rx_pause,
1015                                     priv->prof->rx_ppp);
1016         if (err)
1017                 en_err(priv, "Failed setting pause params\n");
1018         else
1019                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1020                                                 priv->prof->rx_ppp,
1021                                                 priv->prof->rx_pause,
1022                                                 priv->prof->tx_ppp,
1023                                                 priv->prof->tx_pause);
1024
1025         return err;
1026 }
1027
1028 static void mlx4_en_get_pauseparam(struct net_device *dev,
1029                                  struct ethtool_pauseparam *pause)
1030 {
1031         struct mlx4_en_priv *priv = netdev_priv(dev);
1032
1033         pause->tx_pause = priv->prof->tx_pause;
1034         pause->rx_pause = priv->prof->rx_pause;
1035 }
1036
1037 static int mlx4_en_set_ringparam(struct net_device *dev,
1038                                  struct ethtool_ringparam *param)
1039 {
1040         struct mlx4_en_priv *priv = netdev_priv(dev);
1041         struct mlx4_en_dev *mdev = priv->mdev;
1042         u32 rx_size, tx_size;
1043         int port_up = 0;
1044         int err = 0;
1045
1046         if (param->rx_jumbo_pending || param->rx_mini_pending)
1047                 return -EINVAL;
1048
1049         rx_size = roundup_pow_of_two(param->rx_pending);
1050         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1051         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1052         tx_size = roundup_pow_of_two(param->tx_pending);
1053         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1054         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1055
1056         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1057                                         priv->rx_ring[0]->size) &&
1058             tx_size == priv->tx_ring[0]->size)
1059                 return 0;
1060
1061         mutex_lock(&mdev->state_lock);
1062         if (priv->port_up) {
1063                 port_up = 1;
1064                 mlx4_en_stop_port(dev, 1);
1065         }
1066
1067         mlx4_en_free_resources(priv);
1068
1069         priv->prof->tx_ring_size = tx_size;
1070         priv->prof->rx_ring_size = rx_size;
1071
1072         err = mlx4_en_alloc_resources(priv);
1073         if (err) {
1074                 en_err(priv, "Failed reallocating port resources\n");
1075                 goto out;
1076         }
1077         if (port_up) {
1078                 err = mlx4_en_start_port(dev);
1079                 if (err)
1080                         en_err(priv, "Failed starting port\n");
1081         }
1082
1083         err = mlx4_en_moderation_update(priv);
1084
1085 out:
1086         mutex_unlock(&mdev->state_lock);
1087         return err;
1088 }
1089
1090 static void mlx4_en_get_ringparam(struct net_device *dev,
1091                                   struct ethtool_ringparam *param)
1092 {
1093         struct mlx4_en_priv *priv = netdev_priv(dev);
1094
1095         memset(param, 0, sizeof(*param));
1096         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1097         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1098         param->rx_pending = priv->port_up ?
1099                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1100         param->tx_pending = priv->tx_ring[0]->size;
1101 }
1102
1103 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1104 {
1105         struct mlx4_en_priv *priv = netdev_priv(dev);
1106
1107         return priv->rx_ring_num;
1108 }
1109
1110 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1111 {
1112         return MLX4_EN_RSS_KEY_SIZE;
1113 }
1114
1115 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1116 {
1117         struct mlx4_en_priv *priv = netdev_priv(dev);
1118
1119         /* check if requested function is supported by the device */
1120         if (hfunc == ETH_RSS_HASH_TOP) {
1121                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1122                         return -EINVAL;
1123                 if (!(dev->features & NETIF_F_RXHASH))
1124                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1125                 return 0;
1126         } else if (hfunc == ETH_RSS_HASH_XOR) {
1127                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1128                         return -EINVAL;
1129                 if (dev->features & NETIF_F_RXHASH)
1130                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1131                 return 0;
1132         }
1133
1134         return -EINVAL;
1135 }
1136
1137 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1138                             u8 *hfunc)
1139 {
1140         struct mlx4_en_priv *priv = netdev_priv(dev);
1141         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
1142         int rss_rings;
1143         size_t n = priv->rx_ring_num;
1144         int err = 0;
1145
1146         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
1147         rss_rings = 1 << ilog2(rss_rings);
1148
1149         while (n--) {
1150                 if (!ring_index)
1151                         break;
1152                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
1153                         rss_map->base_qpn;
1154         }
1155         if (key)
1156                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1157         if (hfunc)
1158                 *hfunc = priv->rss_hash_fn;
1159         return err;
1160 }
1161
1162 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1163                             const u8 *key, const u8 hfunc)
1164 {
1165         struct mlx4_en_priv *priv = netdev_priv(dev);
1166         struct mlx4_en_dev *mdev = priv->mdev;
1167         int port_up = 0;
1168         int err = 0;
1169         int i;
1170         int rss_rings = 0;
1171
1172         /* Calculate RSS table size and make sure flows are spread evenly
1173          * between rings
1174          */
1175         for (i = 0; i < priv->rx_ring_num; i++) {
1176                 if (!ring_index)
1177                         continue;
1178                 if (i > 0 && !ring_index[i] && !rss_rings)
1179                         rss_rings = i;
1180
1181                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
1182                         return -EINVAL;
1183         }
1184
1185         if (!rss_rings)
1186                 rss_rings = priv->rx_ring_num;
1187
1188         /* RSS table size must be an order of 2 */
1189         if (!is_power_of_2(rss_rings))
1190                 return -EINVAL;
1191
1192         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1193                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1194                 if (err)
1195                         return err;
1196         }
1197
1198         mutex_lock(&mdev->state_lock);
1199         if (priv->port_up) {
1200                 port_up = 1;
1201                 mlx4_en_stop_port(dev, 1);
1202         }
1203
1204         if (ring_index)
1205                 priv->prof->rss_rings = rss_rings;
1206         if (key)
1207                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1208         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1209                 priv->rss_hash_fn = hfunc;
1210
1211         if (port_up) {
1212                 err = mlx4_en_start_port(dev);
1213                 if (err)
1214                         en_err(priv, "Failed starting port\n");
1215         }
1216
1217         mutex_unlock(&mdev->state_lock);
1218         return err;
1219 }
1220
1221 #define all_zeros_or_all_ones(field)            \
1222         ((field) == 0 || (field) == (__force typeof(field))-1)
1223
1224 static int mlx4_en_validate_flow(struct net_device *dev,
1225                                  struct ethtool_rxnfc *cmd)
1226 {
1227         struct ethtool_usrip4_spec *l3_mask;
1228         struct ethtool_tcpip4_spec *l4_mask;
1229         struct ethhdr *eth_mask;
1230
1231         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1232                 return -EINVAL;
1233
1234         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1235                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1236                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1237                         return -EINVAL;
1238         }
1239
1240         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1241         case TCP_V4_FLOW:
1242         case UDP_V4_FLOW:
1243                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1244                         return -EINVAL;
1245                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1246                 /* don't allow mask which isn't all 0 or 1 */
1247                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1248                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1249                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1250                     !all_zeros_or_all_ones(l4_mask->pdst))
1251                         return -EINVAL;
1252                 break;
1253         case IP_USER_FLOW:
1254                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1255                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1256                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1257                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1258                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1259                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1260                         return -EINVAL;
1261                 break;
1262         case ETHER_FLOW:
1263                 eth_mask = &cmd->fs.m_u.ether_spec;
1264                 /* source mac mask must not be set */
1265                 if (!is_zero_ether_addr(eth_mask->h_source))
1266                         return -EINVAL;
1267
1268                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1269                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1270                         return -EINVAL;
1271
1272                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1273                         return -EINVAL;
1274                 break;
1275         default:
1276                 return -EINVAL;
1277         }
1278
1279         if ((cmd->fs.flow_type & FLOW_EXT)) {
1280                 if (cmd->fs.m_ext.vlan_etype ||
1281                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1282                       0 ||
1283                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1284                       cpu_to_be16(VLAN_VID_MASK)))
1285                         return -EINVAL;
1286
1287                 if (cmd->fs.m_ext.vlan_tci) {
1288                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1289                                 return -EINVAL;
1290
1291                 }
1292         }
1293
1294         return 0;
1295 }
1296
1297 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1298                                         struct list_head *rule_list_h,
1299                                         struct mlx4_spec_list *spec_l2,
1300                                         unsigned char *mac)
1301 {
1302         int err = 0;
1303         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1304
1305         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1306         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1307         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1308
1309         if ((cmd->fs.flow_type & FLOW_EXT) &&
1310             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1311                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1312                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1313         }
1314
1315         list_add_tail(&spec_l2->list, rule_list_h);
1316
1317         return err;
1318 }
1319
1320 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1321                                                 struct ethtool_rxnfc *cmd,
1322                                                 struct list_head *rule_list_h,
1323                                                 struct mlx4_spec_list *spec_l2,
1324                                                 __be32 ipv4_dst)
1325 {
1326 #ifdef CONFIG_INET
1327         unsigned char mac[ETH_ALEN];
1328
1329         if (!ipv4_is_multicast(ipv4_dst)) {
1330                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1331                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1332                 else
1333                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1334         } else {
1335                 ip_eth_mc_map(ipv4_dst, mac);
1336         }
1337
1338         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1339 #else
1340         return -EINVAL;
1341 #endif
1342 }
1343
1344 static int add_ip_rule(struct mlx4_en_priv *priv,
1345                        struct ethtool_rxnfc *cmd,
1346                        struct list_head *list_h)
1347 {
1348         int err;
1349         struct mlx4_spec_list *spec_l2 = NULL;
1350         struct mlx4_spec_list *spec_l3 = NULL;
1351         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1352
1353         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1354         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1355         if (!spec_l2 || !spec_l3) {
1356                 err = -ENOMEM;
1357                 goto free_spec;
1358         }
1359
1360         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1361                                                    cmd->fs.h_u.
1362                                                    usr_ip4_spec.ip4dst);
1363         if (err)
1364                 goto free_spec;
1365         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1366         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1367         if (l3_mask->ip4src)
1368                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1369         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1370         if (l3_mask->ip4dst)
1371                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1372         list_add_tail(&spec_l3->list, list_h);
1373
1374         return 0;
1375
1376 free_spec:
1377         kfree(spec_l2);
1378         kfree(spec_l3);
1379         return err;
1380 }
1381
1382 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1383                              struct ethtool_rxnfc *cmd,
1384                              struct list_head *list_h, int proto)
1385 {
1386         int err;
1387         struct mlx4_spec_list *spec_l2 = NULL;
1388         struct mlx4_spec_list *spec_l3 = NULL;
1389         struct mlx4_spec_list *spec_l4 = NULL;
1390         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1391
1392         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1393         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1394         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1395         if (!spec_l2 || !spec_l3 || !spec_l4) {
1396                 err = -ENOMEM;
1397                 goto free_spec;
1398         }
1399
1400         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1401
1402         if (proto == TCP_V4_FLOW) {
1403                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1404                                                            spec_l2,
1405                                                            cmd->fs.h_u.
1406                                                            tcp_ip4_spec.ip4dst);
1407                 if (err)
1408                         goto free_spec;
1409                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1410                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1411                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1412                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1413                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1414         } else {
1415                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1416                                                            spec_l2,
1417                                                            cmd->fs.h_u.
1418                                                            udp_ip4_spec.ip4dst);
1419                 if (err)
1420                         goto free_spec;
1421                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1422                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1423                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1424                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1425                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1426         }
1427
1428         if (l4_mask->ip4src)
1429                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1430         if (l4_mask->ip4dst)
1431                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1432
1433         if (l4_mask->psrc)
1434                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1435         if (l4_mask->pdst)
1436                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1437
1438         list_add_tail(&spec_l3->list, list_h);
1439         list_add_tail(&spec_l4->list, list_h);
1440
1441         return 0;
1442
1443 free_spec:
1444         kfree(spec_l2);
1445         kfree(spec_l3);
1446         kfree(spec_l4);
1447         return err;
1448 }
1449
1450 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1451                                              struct ethtool_rxnfc *cmd,
1452                                              struct list_head *rule_list_h)
1453 {
1454         int err;
1455         struct ethhdr *eth_spec;
1456         struct mlx4_spec_list *spec_l2;
1457         struct mlx4_en_priv *priv = netdev_priv(dev);
1458
1459         err = mlx4_en_validate_flow(dev, cmd);
1460         if (err)
1461                 return err;
1462
1463         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1464         case ETHER_FLOW:
1465                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1466                 if (!spec_l2)
1467                         return -ENOMEM;
1468
1469                 eth_spec = &cmd->fs.h_u.ether_spec;
1470                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1471                                              &eth_spec->h_dest[0]);
1472                 spec_l2->eth.ether_type = eth_spec->h_proto;
1473                 if (eth_spec->h_proto)
1474                         spec_l2->eth.ether_type_enable = 1;
1475                 break;
1476         case IP_USER_FLOW:
1477                 err = add_ip_rule(priv, cmd, rule_list_h);
1478                 break;
1479         case TCP_V4_FLOW:
1480                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1481                 break;
1482         case UDP_V4_FLOW:
1483                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1484                 break;
1485         }
1486
1487         return err;
1488 }
1489
1490 static int mlx4_en_flow_replace(struct net_device *dev,
1491                                 struct ethtool_rxnfc *cmd)
1492 {
1493         int err;
1494         struct mlx4_en_priv *priv = netdev_priv(dev);
1495         struct ethtool_flow_id *loc_rule;
1496         struct mlx4_spec_list *spec, *tmp_spec;
1497         u32 qpn;
1498         u64 reg_id;
1499
1500         struct mlx4_net_trans_rule rule = {
1501                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1502                 .exclusive = 0,
1503                 .allow_loopback = 1,
1504                 .promisc_mode = MLX4_FS_REGULAR,
1505         };
1506
1507         rule.port = priv->port;
1508         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1509         INIT_LIST_HEAD(&rule.list);
1510
1511         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1512         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1513                 qpn = priv->drop_qp.qpn;
1514         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1515                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1516         } else {
1517                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1518                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1519                                 cmd->fs.ring_cookie);
1520                         return -EINVAL;
1521                 }
1522                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1523                 if (!qpn) {
1524                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1525                                 cmd->fs.ring_cookie);
1526                         return -EINVAL;
1527                 }
1528         }
1529         rule.qpn = qpn;
1530         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1531         if (err)
1532                 goto out_free_list;
1533
1534         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1535         if (loc_rule->id) {
1536                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1537                 if (err) {
1538                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1539                                cmd->fs.location, loc_rule->id);
1540                         goto out_free_list;
1541                 }
1542                 loc_rule->id = 0;
1543                 memset(&loc_rule->flow_spec, 0,
1544                        sizeof(struct ethtool_rx_flow_spec));
1545                 list_del(&loc_rule->list);
1546         }
1547         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1548         if (err) {
1549                 en_err(priv, "Fail to attach network rule at location %d\n",
1550                        cmd->fs.location);
1551                 goto out_free_list;
1552         }
1553         loc_rule->id = reg_id;
1554         memcpy(&loc_rule->flow_spec, &cmd->fs,
1555                sizeof(struct ethtool_rx_flow_spec));
1556         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1557
1558 out_free_list:
1559         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1560                 list_del(&spec->list);
1561                 kfree(spec);
1562         }
1563         return err;
1564 }
1565
1566 static int mlx4_en_flow_detach(struct net_device *dev,
1567                                struct ethtool_rxnfc *cmd)
1568 {
1569         int err = 0;
1570         struct ethtool_flow_id *rule;
1571         struct mlx4_en_priv *priv = netdev_priv(dev);
1572
1573         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1574                 return -EINVAL;
1575
1576         rule = &priv->ethtool_rules[cmd->fs.location];
1577         if (!rule->id) {
1578                 err =  -ENOENT;
1579                 goto out;
1580         }
1581
1582         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1583         if (err) {
1584                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1585                        cmd->fs.location, rule->id);
1586                 goto out;
1587         }
1588         rule->id = 0;
1589         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1590         list_del(&rule->list);
1591 out:
1592         return err;
1593
1594 }
1595
1596 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1597                             int loc)
1598 {
1599         int err = 0;
1600         struct ethtool_flow_id *rule;
1601         struct mlx4_en_priv *priv = netdev_priv(dev);
1602
1603         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1604                 return -EINVAL;
1605
1606         rule = &priv->ethtool_rules[loc];
1607         if (rule->id)
1608                 memcpy(&cmd->fs, &rule->flow_spec,
1609                        sizeof(struct ethtool_rx_flow_spec));
1610         else
1611                 err = -ENOENT;
1612
1613         return err;
1614 }
1615
1616 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1617 {
1618
1619         int i, res = 0;
1620         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1621                 if (priv->ethtool_rules[i].id)
1622                         res++;
1623         }
1624         return res;
1625
1626 }
1627
1628 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1629                              u32 *rule_locs)
1630 {
1631         struct mlx4_en_priv *priv = netdev_priv(dev);
1632         struct mlx4_en_dev *mdev = priv->mdev;
1633         int err = 0;
1634         int i = 0, priority = 0;
1635
1636         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1637              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1638              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1639             (mdev->dev->caps.steering_mode !=
1640              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1641                 return -EINVAL;
1642
1643         switch (cmd->cmd) {
1644         case ETHTOOL_GRXRINGS:
1645                 cmd->data = priv->rx_ring_num;
1646                 break;
1647         case ETHTOOL_GRXCLSRLCNT:
1648                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1649                 break;
1650         case ETHTOOL_GRXCLSRULE:
1651                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1652                 break;
1653         case ETHTOOL_GRXCLSRLALL:
1654                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1655                         err = mlx4_en_get_flow(dev, cmd, i);
1656                         if (!err)
1657                                 rule_locs[priority++] = i;
1658                         i++;
1659                 }
1660                 err = 0;
1661                 break;
1662         default:
1663                 err = -EOPNOTSUPP;
1664                 break;
1665         }
1666
1667         return err;
1668 }
1669
1670 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1671 {
1672         int err = 0;
1673         struct mlx4_en_priv *priv = netdev_priv(dev);
1674         struct mlx4_en_dev *mdev = priv->mdev;
1675
1676         if (mdev->dev->caps.steering_mode !=
1677             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1678                 return -EINVAL;
1679
1680         switch (cmd->cmd) {
1681         case ETHTOOL_SRXCLSRLINS:
1682                 err = mlx4_en_flow_replace(dev, cmd);
1683                 break;
1684         case ETHTOOL_SRXCLSRLDEL:
1685                 err = mlx4_en_flow_detach(dev, cmd);
1686                 break;
1687         default:
1688                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1689                 return -EINVAL;
1690         }
1691
1692         return err;
1693 }
1694
1695 static void mlx4_en_get_channels(struct net_device *dev,
1696                                  struct ethtool_channels *channel)
1697 {
1698         struct mlx4_en_priv *priv = netdev_priv(dev);
1699
1700         memset(channel, 0, sizeof(*channel));
1701
1702         channel->max_rx = MAX_RX_RINGS;
1703         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1704
1705         channel->rx_count = priv->rx_ring_num;
1706         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1707 }
1708
1709 static int mlx4_en_set_channels(struct net_device *dev,
1710                                 struct ethtool_channels *channel)
1711 {
1712         struct mlx4_en_priv *priv = netdev_priv(dev);
1713         struct mlx4_en_dev *mdev = priv->mdev;
1714         int port_up = 0;
1715         int err = 0;
1716
1717         if (channel->other_count || channel->combined_count ||
1718             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1719             channel->rx_count > MAX_RX_RINGS ||
1720             !channel->tx_count || !channel->rx_count)
1721                 return -EINVAL;
1722
1723         mutex_lock(&mdev->state_lock);
1724         if (priv->port_up) {
1725                 port_up = 1;
1726                 mlx4_en_stop_port(dev, 1);
1727         }
1728
1729         mlx4_en_free_resources(priv);
1730
1731         priv->num_tx_rings_p_up = channel->tx_count;
1732         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1733         priv->rx_ring_num = channel->rx_count;
1734
1735         err = mlx4_en_alloc_resources(priv);
1736         if (err) {
1737                 en_err(priv, "Failed reallocating port resources\n");
1738                 goto out;
1739         }
1740
1741         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1742         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1743
1744         if (dev->num_tc)
1745                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1746
1747         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1748         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1749
1750         if (port_up) {
1751                 err = mlx4_en_start_port(dev);
1752                 if (err)
1753                         en_err(priv, "Failed starting port\n");
1754         }
1755
1756         err = mlx4_en_moderation_update(priv);
1757
1758 out:
1759         mutex_unlock(&mdev->state_lock);
1760         return err;
1761 }
1762
1763 static int mlx4_en_get_ts_info(struct net_device *dev,
1764                                struct ethtool_ts_info *info)
1765 {
1766         struct mlx4_en_priv *priv = netdev_priv(dev);
1767         struct mlx4_en_dev *mdev = priv->mdev;
1768         int ret;
1769
1770         ret = ethtool_op_get_ts_info(dev, info);
1771         if (ret)
1772                 return ret;
1773
1774         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1775                 info->so_timestamping |=
1776                         SOF_TIMESTAMPING_TX_HARDWARE |
1777                         SOF_TIMESTAMPING_RX_HARDWARE |
1778                         SOF_TIMESTAMPING_RAW_HARDWARE;
1779
1780                 info->tx_types =
1781                         (1 << HWTSTAMP_TX_OFF) |
1782                         (1 << HWTSTAMP_TX_ON);
1783
1784                 info->rx_filters =
1785                         (1 << HWTSTAMP_FILTER_NONE) |
1786                         (1 << HWTSTAMP_FILTER_ALL);
1787
1788                 if (mdev->ptp_clock)
1789                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1790         }
1791
1792         return ret;
1793 }
1794
1795 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1796 {
1797         struct mlx4_en_priv *priv = netdev_priv(dev);
1798         struct mlx4_en_dev *mdev = priv->mdev;
1799         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1800         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1801         bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1802         bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1803         int i;
1804         int ret = 0;
1805
1806         if (bf_enabled_new != bf_enabled_old) {
1807                 if (bf_enabled_new) {
1808                         bool bf_supported = true;
1809
1810                         for (i = 0; i < priv->tx_ring_num; i++)
1811                                 bf_supported &= priv->tx_ring[i]->bf_alloced;
1812
1813                         if (!bf_supported) {
1814                                 en_err(priv, "BlueFlame is not supported\n");
1815                                 return -EINVAL;
1816                         }
1817
1818                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1819                 } else {
1820                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1821                 }
1822
1823                 for (i = 0; i < priv->tx_ring_num; i++)
1824                         priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1825
1826                 en_info(priv, "BlueFlame %s\n",
1827                         bf_enabled_new ?  "Enabled" : "Disabled");
1828         }
1829
1830         if (phv_enabled_new != phv_enabled_old) {
1831                 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1832                 if (ret)
1833                         return ret;
1834                 else if (phv_enabled_new)
1835                         priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1836                 else
1837                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1838                 en_info(priv, "PHV bit %s\n",
1839                         phv_enabled_new ?  "Enabled" : "Disabled");
1840         }
1841         return 0;
1842 }
1843
1844 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1845 {
1846         struct mlx4_en_priv *priv = netdev_priv(dev);
1847
1848         return priv->pflags;
1849 }
1850
1851 static int mlx4_en_get_tunable(struct net_device *dev,
1852                                const struct ethtool_tunable *tuna,
1853                                void *data)
1854 {
1855         const struct mlx4_en_priv *priv = netdev_priv(dev);
1856         int ret = 0;
1857
1858         switch (tuna->id) {
1859         case ETHTOOL_TX_COPYBREAK:
1860                 *(u32 *)data = priv->prof->inline_thold;
1861                 break;
1862         default:
1863                 ret = -EINVAL;
1864                 break;
1865         }
1866
1867         return ret;
1868 }
1869
1870 static int mlx4_en_set_tunable(struct net_device *dev,
1871                                const struct ethtool_tunable *tuna,
1872                                const void *data)
1873 {
1874         struct mlx4_en_priv *priv = netdev_priv(dev);
1875         int val, ret = 0;
1876
1877         switch (tuna->id) {
1878         case ETHTOOL_TX_COPYBREAK:
1879                 val = *(u32 *)data;
1880                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1881                         ret = -EINVAL;
1882                 else
1883                         priv->prof->inline_thold = val;
1884                 break;
1885         default:
1886                 ret = -EINVAL;
1887                 break;
1888         }
1889
1890         return ret;
1891 }
1892
1893 static int mlx4_en_get_module_info(struct net_device *dev,
1894                                    struct ethtool_modinfo *modinfo)
1895 {
1896         struct mlx4_en_priv *priv = netdev_priv(dev);
1897         struct mlx4_en_dev *mdev = priv->mdev;
1898         int ret;
1899         u8 data[4];
1900
1901         /* Read first 2 bytes to get Module & REV ID */
1902         ret = mlx4_get_module_info(mdev->dev, priv->port,
1903                                    0/*offset*/, 2/*size*/, data);
1904         if (ret < 2)
1905                 return -EIO;
1906
1907         switch (data[0] /* identifier */) {
1908         case MLX4_MODULE_ID_QSFP:
1909                 modinfo->type = ETH_MODULE_SFF_8436;
1910                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1911                 break;
1912         case MLX4_MODULE_ID_QSFP_PLUS:
1913                 if (data[1] >= 0x3) { /* revision id */
1914                         modinfo->type = ETH_MODULE_SFF_8636;
1915                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1916                 } else {
1917                         modinfo->type = ETH_MODULE_SFF_8436;
1918                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1919                 }
1920                 break;
1921         case MLX4_MODULE_ID_QSFP28:
1922                 modinfo->type = ETH_MODULE_SFF_8636;
1923                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1924                 break;
1925         case MLX4_MODULE_ID_SFP:
1926                 modinfo->type = ETH_MODULE_SFF_8472;
1927                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1928                 break;
1929         default:
1930                 return -ENOSYS;
1931         }
1932
1933         return 0;
1934 }
1935
1936 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1937                                      struct ethtool_eeprom *ee,
1938                                      u8 *data)
1939 {
1940         struct mlx4_en_priv *priv = netdev_priv(dev);
1941         struct mlx4_en_dev *mdev = priv->mdev;
1942         int offset = ee->offset;
1943         int i = 0, ret;
1944
1945         if (ee->len == 0)
1946                 return -EINVAL;
1947
1948         memset(data, 0, ee->len);
1949
1950         while (i < ee->len) {
1951                 en_dbg(DRV, priv,
1952                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1953                        i, offset, ee->len - i);
1954
1955                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1956                                            offset, ee->len - i, data + i);
1957
1958                 if (!ret) /* Done reading */
1959                         return 0;
1960
1961                 if (ret < 0) {
1962                         en_err(priv,
1963                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1964                                i, offset, ee->len - i, ret);
1965                         return 0;
1966                 }
1967
1968                 i += ret;
1969                 offset += ret;
1970         }
1971         return 0;
1972 }
1973
1974 static int mlx4_en_set_phys_id(struct net_device *dev,
1975                                enum ethtool_phys_id_state state)
1976 {
1977         int err;
1978         u16 beacon_duration;
1979         struct mlx4_en_priv *priv = netdev_priv(dev);
1980         struct mlx4_en_dev *mdev = priv->mdev;
1981
1982         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
1983                 return -EOPNOTSUPP;
1984
1985         switch (state) {
1986         case ETHTOOL_ID_ACTIVE:
1987                 beacon_duration = PORT_BEACON_MAX_LIMIT;
1988                 break;
1989         case ETHTOOL_ID_INACTIVE:
1990                 beacon_duration = 0;
1991                 break;
1992         default:
1993                 return -EOPNOTSUPP;
1994         }
1995
1996         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
1997         return err;
1998 }
1999
2000 const struct ethtool_ops mlx4_en_ethtool_ops = {
2001         .get_drvinfo = mlx4_en_get_drvinfo,
2002         .get_settings = mlx4_en_get_settings,
2003         .set_settings = mlx4_en_set_settings,
2004         .get_link = ethtool_op_get_link,
2005         .get_strings = mlx4_en_get_strings,
2006         .get_sset_count = mlx4_en_get_sset_count,
2007         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2008         .self_test = mlx4_en_self_test,
2009         .set_phys_id = mlx4_en_set_phys_id,
2010         .get_wol = mlx4_en_get_wol,
2011         .set_wol = mlx4_en_set_wol,
2012         .get_msglevel = mlx4_en_get_msglevel,
2013         .set_msglevel = mlx4_en_set_msglevel,
2014         .get_coalesce = mlx4_en_get_coalesce,
2015         .set_coalesce = mlx4_en_set_coalesce,
2016         .get_pauseparam = mlx4_en_get_pauseparam,
2017         .set_pauseparam = mlx4_en_set_pauseparam,
2018         .get_ringparam = mlx4_en_get_ringparam,
2019         .set_ringparam = mlx4_en_set_ringparam,
2020         .get_rxnfc = mlx4_en_get_rxnfc,
2021         .set_rxnfc = mlx4_en_set_rxnfc,
2022         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2023         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2024         .get_rxfh = mlx4_en_get_rxfh,
2025         .set_rxfh = mlx4_en_set_rxfh,
2026         .get_channels = mlx4_en_get_channels,
2027         .set_channels = mlx4_en_set_channels,
2028         .get_ts_info = mlx4_en_get_ts_info,
2029         .set_priv_flags = mlx4_en_set_priv_flags,
2030         .get_priv_flags = mlx4_en_get_priv_flags,
2031         .get_tunable            = mlx4_en_get_tunable,
2032         .set_tunable            = mlx4_en_set_tunable,
2033         .get_module_info = mlx4_en_get_module_info,
2034         .get_module_eeprom = mlx4_en_get_module_eeprom
2035 };
2036
2037
2038
2039
2040