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         drvinfo->n_stats = 0;
  99         drvinfo->regdump_len = 0;
 100         drvinfo->eedump_len = 0;
 101 }
 102
 103 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 104         "blueflame",
 105 };
 106
 107 static const char main_strings[][ETH_GSTRING_LEN] = {
 108         /* main statistics */
 109         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 110         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 111         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 112         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 113         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 114         "tx_heartbeat_errors", "tx_window_errors",
 115
 116         /* port statistics */
 117         "tso_packets",
 118         "xmit_more",
 119         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 120         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 121
 122         /* pf statistics */
 123         "pf_rx_packets",
 124         "pf_rx_bytes",
 125         "pf_tx_packets",
 126         "pf_tx_bytes",
 127
 128         /* priority flow control statistics rx */
 129         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 130         "rx_pause_transition_prio_0",
 131         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 132         "rx_pause_transition_prio_1",
 133         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 134         "rx_pause_transition_prio_2",
 135         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 136         "rx_pause_transition_prio_3",
 137         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 138         "rx_pause_transition_prio_4",
 139         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 140         "rx_pause_transition_prio_5",
 141         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 142         "rx_pause_transition_prio_6",
 143         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 144         "rx_pause_transition_prio_7",
 145
 146         /* flow control statistics rx */
 147         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 148
 149         /* priority flow control statistics tx */
 150         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 151         "tx_pause_transition_prio_0",
 152         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 153         "tx_pause_transition_prio_1",
 154         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 155         "tx_pause_transition_prio_2",
 156         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 157         "tx_pause_transition_prio_3",
 158         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 159         "tx_pause_transition_prio_4",
 160         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 161         "tx_pause_transition_prio_5",
 162         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 163         "tx_pause_transition_prio_6",
 164         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 165         "tx_pause_transition_prio_7",
 166
 167         /* flow control statistics tx */
 168         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 169
 170         /* packet statistics */
 171         "rx_multicast_packets",
 172         "rx_broadcast_packets",
 173         "rx_jabbers",
 174         "rx_in_range_length_error",
 175         "rx_out_range_length_error",
 176         "tx_multicast_packets",
 177         "tx_broadcast_packets",
 178         "rx_prio_0_packets", "rx_prio_0_bytes",
 179         "rx_prio_1_packets", "rx_prio_1_bytes",
 180         "rx_prio_2_packets", "rx_prio_2_bytes",
 181         "rx_prio_3_packets", "rx_prio_3_bytes",
 182         "rx_prio_4_packets", "rx_prio_4_bytes",
 183         "rx_prio_5_packets", "rx_prio_5_bytes",
 184         "rx_prio_6_packets", "rx_prio_6_bytes",
 185         "rx_prio_7_packets", "rx_prio_7_bytes",
 186         "rx_novlan_packets", "rx_novlan_bytes",
 187         "tx_prio_0_packets", "tx_prio_0_bytes",
 188         "tx_prio_1_packets", "tx_prio_1_bytes",
 189         "tx_prio_2_packets", "tx_prio_2_bytes",
 190         "tx_prio_3_packets", "tx_prio_3_bytes",
 191         "tx_prio_4_packets", "tx_prio_4_bytes",
 192         "tx_prio_5_packets", "tx_prio_5_bytes",
 193         "tx_prio_6_packets", "tx_prio_6_bytes",
 194         "tx_prio_7_packets", "tx_prio_7_bytes",
 195         "tx_novlan_packets", "tx_novlan_bytes",
 196
 197 };
 198
 199 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 200         "Interrupt Test",
 201         "Link Test",
 202         "Speed Test",
 203         "Register Test",
 204         "Loopback Test",
 205 };
 206
 207 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 208 {
 209         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 210 }
 211
 212 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 213 {
 214         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 215 }
 216
 217 static void mlx4_en_get_wol(struct net_device *netdev,
 218                             struct ethtool_wolinfo *wol)
 219 {
 220         struct mlx4_en_priv *priv = netdev_priv(netdev);
 221         int err = 0;
 222         u64 config = 0;
 223         u64 mask;
 224
 225         if ((priv->port < 1) || (priv->port > 2)) {
 226                 en_err(priv, "Failed to get WoL information\n");
 227                 return;
 228         }
 229
 230         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 231                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 232
 233         if (!(priv->mdev->dev->caps.flags & mask)) {
 234                 wol->supported = 0;
 235                 wol->wolopts = 0;
 236                 return;
 237         }
 238
 239         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 240         if (err) {
 241                 en_err(priv, "Failed to get WoL information\n");
 242                 return;
 243         }
 244
 245         if (config & MLX4_EN_WOL_MAGIC)
 246                 wol->supported = WAKE_MAGIC;
 247         else
 248                 wol->supported = 0;
 249
 250         if (config & MLX4_EN_WOL_ENABLED)
 251                 wol->wolopts = WAKE_MAGIC;
 252         else
 253                 wol->wolopts = 0;
 254 }
 255
 256 static int mlx4_en_set_wol(struct net_device *netdev,
 257                             struct ethtool_wolinfo *wol)
 258 {
 259         struct mlx4_en_priv *priv = netdev_priv(netdev);
 260         u64 config = 0;
 261         int err = 0;
 262         u64 mask;
 263
 264         if ((priv->port < 1) || (priv->port > 2))
 265                 return -EOPNOTSUPP;
 266
 267         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 268                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 269
 270         if (!(priv->mdev->dev->caps.flags & mask))
 271                 return -EOPNOTSUPP;
 272
 273         if (wol->supported & ~WAKE_MAGIC)
 274                 return -EINVAL;
 275
 276         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 277         if (err) {
 278                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 279                 return err;
 280         }
 281
 282         if (wol->wolopts & WAKE_MAGIC) {
 283                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 284                                 MLX4_EN_WOL_MAGIC;
 285         } else {
 286                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 287                 config |= MLX4_EN_WOL_DO_MODIFY;
 288         }
 289
 290         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 291         if (err)
 292                 en_err(priv, "Failed to set WoL information\n");
 293
 294         return err;
 295 }
 296
 297 struct bitmap_iterator {
 298         unsigned long *stats_bitmap;
 299         unsigned int count;
 300         unsigned int iterator;
 301         bool advance_array; /* if set, force no increments */
 302 };
 303
 304 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 305                                         unsigned long *stats_bitmap,
 306                                         int count)
 307 {
 308         h->iterator = 0;
 309         h->advance_array = !bitmap_empty(stats_bitmap, count);
 310         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 311                 : count;
 312         h->stats_bitmap = stats_bitmap;
 313 }
 314
 315 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 316 {
 317         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 318 }
 319
 320 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 321 {
 322         return h->iterator++;
 323 }
 324
 325 static inline unsigned int
 326 bitmap_iterator_count(struct bitmap_iterator *h)
 327 {
 328         return h->count;
 329 }
 330
 331 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 332 {
 333         struct mlx4_en_priv *priv = netdev_priv(dev);
 334         struct bitmap_iterator it;
 335
 336         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 337
 338         switch (sset) {
 339         case ETH_SS_STATS:
 340                 return bitmap_iterator_count(&it) +
 341                         (priv->tx_ring_num * 2) +
 342 #ifdef CONFIG_NET_RX_BUSY_POLL
 343                         (priv->rx_ring_num * 5);
 344 #else
 345                         (priv->rx_ring_num * 2);
 346 #endif
 347         case ETH_SS_TEST:
 348                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 349                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 350         case ETH_SS_PRIV_FLAGS:
 351                 return ARRAY_SIZE(mlx4_en_priv_flags);
 352         default:
 353                 return -EOPNOTSUPP;
 354         }
 355 }
 356
 357 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 358                 struct ethtool_stats *stats, uint64_t *data)
 359 {
 360         struct mlx4_en_priv *priv = netdev_priv(dev);
 361         int index = 0;
 362         int i;
 363         struct bitmap_iterator it;
 364
 365         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 366
 367         spin_lock_bh(&priv->stats_lock);
 368
 369         for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
 370                 if (bitmap_iterator_test(&it))
 371                         data[index++] = ((unsigned long *)&priv->stats)[i];
 372
 373         for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
 374                 if (bitmap_iterator_test(&it))
 375                         data[index++] = ((unsigned long *)&priv->port_stats)[i];
 376
 377         for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
 378                 if (bitmap_iterator_test(&it))
 379                         data[index++] =
 380                                 ((unsigned long *)&priv->pf_stats)[i];
 381
 382         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 383              i++, bitmap_iterator_inc(&it))
 384                 if (bitmap_iterator_test(&it))
 385                         data[index++] =
 386                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 387
 388         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 389                 if (bitmap_iterator_test(&it))
 390                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 391
 392         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 393              i++, bitmap_iterator_inc(&it))
 394                 if (bitmap_iterator_test(&it))
 395                         data[index++] =
 396                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 397
 398         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 399                 if (bitmap_iterator_test(&it))
 400                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 401
 402         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 403                 if (bitmap_iterator_test(&it))
 404                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 405
 406         for (i = 0; i < priv->tx_ring_num; i++) {
 407                 data[index++] = priv->tx_ring[i]->packets;
 408                 data[index++] = priv->tx_ring[i]->bytes;
 409         }
 410         for (i = 0; i < priv->rx_ring_num; i++) {
 411                 data[index++] = priv->rx_ring[i]->packets;
 412                 data[index++] = priv->rx_ring[i]->bytes;
 413 #ifdef CONFIG_NET_RX_BUSY_POLL
 414                 data[index++] = priv->rx_ring[i]->yields;
 415                 data[index++] = priv->rx_ring[i]->misses;
 416                 data[index++] = priv->rx_ring[i]->cleaned;
 417 #endif
 418         }
 419         spin_unlock_bh(&priv->stats_lock);
 420
 421 }
 422
 423 static void mlx4_en_self_test(struct net_device *dev,
 424                               struct ethtool_test *etest, u64 *buf)
 425 {
 426         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 427 }
 428
 429 static void mlx4_en_get_strings(struct net_device *dev,
 430                                 uint32_t stringset, uint8_t *data)
 431 {
 432         struct mlx4_en_priv *priv = netdev_priv(dev);
 433         int index = 0;
 434         int i, strings = 0;
 435         struct bitmap_iterator it;
 436
 437         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 438
 439         switch (stringset) {
 440         case ETH_SS_TEST:
 441                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 442                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 443                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 444                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 445                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 446                 break;
 447
 448         case ETH_SS_STATS:
 449                 /* Add main counters */
 450                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 451                      bitmap_iterator_inc(&it))
 452                         if (bitmap_iterator_test(&it))
 453                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 454                                        main_strings[strings]);
 455
 456                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 457                      bitmap_iterator_inc(&it))
 458                         if (bitmap_iterator_test(&it))
 459                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 460                                        main_strings[strings]);
 461
 462                 for (i = 0; i < NUM_PF_STATS; i++, strings++,
 463                      bitmap_iterator_inc(&it))
 464                         if (bitmap_iterator_test(&it))
 465                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 466                                        main_strings[strings]);
 467
 468                 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 469                      bitmap_iterator_inc(&it))
 470                         if (bitmap_iterator_test(&it))
 471                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 472                                        main_strings[strings]);
 473
 474                 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 475                      bitmap_iterator_inc(&it))
 476                         if (bitmap_iterator_test(&it))
 477                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 478                                        main_strings[strings]);
 479
 480                 for (i = 0; i < priv->tx_ring_num; i++) {
 481                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 482                                 "tx%d_packets", i);
 483                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 484                                 "tx%d_bytes", i);
 485                 }
 486                 for (i = 0; i < priv->rx_ring_num; i++) {
 487                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 488                                 "rx%d_packets", i);
 489                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 490                                 "rx%d_bytes", i);
 491 #ifdef CONFIG_NET_RX_BUSY_POLL
 492                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 493                                 "rx%d_napi_yield", i);
 494                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 495                                 "rx%d_misses", i);
 496                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 497                                 "rx%d_cleaned", i);
 498 #endif
 499                 }
 500                 break;
 501         case ETH_SS_PRIV_FLAGS:
 502                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 503                         strcpy(data + i * ETH_GSTRING_LEN,
 504                                mlx4_en_priv_flags[i]);
 505                 break;
 506
 507         }
 508 }
 509
 510 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 511 {
 512         struct mlx4_en_priv *priv = netdev_priv(dev);
 513         struct mlx4_en_dev *mdev = priv->mdev;
 514         u32 autoneg = AUTONEG_DISABLE;
 515
 516         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 517             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 518                 autoneg = AUTONEG_ENABLE;
 519
 520         return autoneg;
 521 }
 522
 523 static u32 ptys_get_supported_port(struct mlx4_ptys_reg *ptys_reg)
 524 {
 525         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 526
 527         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 528                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 529                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 530                         return SUPPORTED_TP;
 531         }
 532
 533         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 534                          | MLX4_PROT_MASK(MLX4_10GBASE_SR)
 535                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 536                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
 537                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 538                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 539                         return SUPPORTED_FIBRE;
 540         }
 541
 542         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 543                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 544                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 545                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 546                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 547                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 548                         return SUPPORTED_Backplane;
 549         }
 550         return 0;
 551 }
 552
 553 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 554 {
 555         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 556
 557         if (!eth_proto) /* link down */
 558                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 559
 560         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 561                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 562                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 563                         return PORT_TP;
 564         }
 565
 566         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 567                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 568                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 569                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 570                         return PORT_FIBRE;
 571         }
 572
 573         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 574                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 575                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 576                         return PORT_DA;
 577         }
 578
 579         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 580                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 581                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 582                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 583                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 584                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 585                         return PORT_NONE;
 586         }
 587         return PORT_OTHER;
 588 }
 589
 590 #define MLX4_LINK_MODES_SZ \
 591         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 592
 593 enum ethtool_report {
 594         SUPPORTED = 0,
 595         ADVERTISED = 1,
 596         SPEED = 2
 597 };
 598
 599 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 600 static u32 ptys2ethtool_map[MLX4_LINK_MODES_SZ][3] = {
 601         [MLX4_100BASE_TX] = {
 602                 SUPPORTED_100baseT_Full,
 603                 ADVERTISED_100baseT_Full,
 604                 SPEED_100
 605                 },
 606
 607         [MLX4_1000BASE_T] = {
 608                 SUPPORTED_1000baseT_Full,
 609                 ADVERTISED_1000baseT_Full,
 610                 SPEED_1000
 611                 },
 612         [MLX4_1000BASE_CX_SGMII] = {
 613                 SUPPORTED_1000baseKX_Full,
 614                 ADVERTISED_1000baseKX_Full,
 615                 SPEED_1000
 616                 },
 617         [MLX4_1000BASE_KX] = {
 618                 SUPPORTED_1000baseKX_Full,
 619                 ADVERTISED_1000baseKX_Full,
 620                 SPEED_1000
 621                 },
 622
 623         [MLX4_10GBASE_T] = {
 624                 SUPPORTED_10000baseT_Full,
 625                 ADVERTISED_10000baseT_Full,
 626                 SPEED_10000
 627                 },
 628         [MLX4_10GBASE_CX4] = {
 629                 SUPPORTED_10000baseKX4_Full,
 630                 ADVERTISED_10000baseKX4_Full,
 631                 SPEED_10000
 632                 },
 633         [MLX4_10GBASE_KX4] = {
 634                 SUPPORTED_10000baseKX4_Full,
 635                 ADVERTISED_10000baseKX4_Full,
 636                 SPEED_10000
 637                 },
 638         [MLX4_10GBASE_KR] = {
 639                 SUPPORTED_10000baseKR_Full,
 640                 ADVERTISED_10000baseKR_Full,
 641                 SPEED_10000
 642                 },
 643         [MLX4_10GBASE_CR] = {
 644                 SUPPORTED_10000baseKR_Full,
 645                 ADVERTISED_10000baseKR_Full,
 646                 SPEED_10000
 647                 },
 648         [MLX4_10GBASE_SR] = {
 649                 SUPPORTED_10000baseKR_Full,
 650                 ADVERTISED_10000baseKR_Full,
 651                 SPEED_10000
 652                 },
 653
 654         [MLX4_20GBASE_KR2] = {
 655                 SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full,
 656                 ADVERTISED_20000baseMLD2_Full | ADVERTISED_20000baseKR2_Full,
 657                 SPEED_20000
 658                 },
 659
 660         [MLX4_40GBASE_CR4] = {
 661                 SUPPORTED_40000baseCR4_Full,
 662                 ADVERTISED_40000baseCR4_Full,
 663                 SPEED_40000
 664                 },
 665         [MLX4_40GBASE_KR4] = {
 666                 SUPPORTED_40000baseKR4_Full,
 667                 ADVERTISED_40000baseKR4_Full,
 668                 SPEED_40000
 669                 },
 670         [MLX4_40GBASE_SR4] = {
 671                 SUPPORTED_40000baseSR4_Full,
 672                 ADVERTISED_40000baseSR4_Full,
 673                 SPEED_40000
 674                 },
 675
 676         [MLX4_56GBASE_KR4] = {
 677                 SUPPORTED_56000baseKR4_Full,
 678                 ADVERTISED_56000baseKR4_Full,
 679                 SPEED_56000
 680                 },
 681         [MLX4_56GBASE_CR4] = {
 682                 SUPPORTED_56000baseCR4_Full,
 683                 ADVERTISED_56000baseCR4_Full,
 684                 SPEED_56000
 685                 },
 686         [MLX4_56GBASE_SR4] = {
 687                 SUPPORTED_56000baseSR4_Full,
 688                 ADVERTISED_56000baseSR4_Full,
 689                 SPEED_56000
 690                 },
 691 };
 692
 693 static u32 ptys2ethtool_link_modes(u32 eth_proto, enum ethtool_report report)
 694 {
 695         int i;
 696         u32 link_modes = 0;
 697
 698         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 699                 if (eth_proto & MLX4_PROT_MASK(i))
 700                         link_modes |= ptys2ethtool_map[i][report];
 701         }
 702         return link_modes;
 703 }
 704
 705 static u32 ethtool2ptys_link_modes(u32 link_modes, enum ethtool_report report)
 706 {
 707         int i;
 708         u32 ptys_modes = 0;
 709
 710         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 711                 if (ptys2ethtool_map[i][report] & link_modes)
 712                         ptys_modes |= 1 << i;
 713         }
 714         return ptys_modes;
 715 }
 716
 717 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 718 static u32 speed2ptys_link_modes(u32 speed)
 719 {
 720         int i;
 721         u32 ptys_modes = 0;
 722
 723         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 724                 if (ptys2ethtool_map[i][SPEED] == speed)
 725                         ptys_modes |= 1 << i;
 726         }
 727         return ptys_modes;
 728 }
 729
 730 static int ethtool_get_ptys_settings(struct net_device *dev,
 731                                      struct ethtool_cmd *cmd)
 732 {
 733         struct mlx4_en_priv *priv = netdev_priv(dev);
 734         struct mlx4_ptys_reg ptys_reg;
 735         u32 eth_proto;
 736         int ret;
 737
 738         memset(&ptys_reg, 0, sizeof(ptys_reg));
 739         ptys_reg.local_port = priv->port;
 740         ptys_reg.proto_mask = MLX4_PTYS_EN;
 741         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 742                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 743         if (ret) {
 744                 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
 745                         ret);
 746                 return ret;
 747         }
 748         en_dbg(DRV, priv, "ptys_reg.proto_mask       %x\n",
 749                ptys_reg.proto_mask);
 750         en_dbg(DRV, priv, "ptys_reg.eth_proto_cap    %x\n",
 751                be32_to_cpu(ptys_reg.eth_proto_cap));
 752         en_dbg(DRV, priv, "ptys_reg.eth_proto_admin  %x\n",
 753                be32_to_cpu(ptys_reg.eth_proto_admin));
 754         en_dbg(DRV, priv, "ptys_reg.eth_proto_oper   %x\n",
 755                be32_to_cpu(ptys_reg.eth_proto_oper));
 756         en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
 757                be32_to_cpu(ptys_reg.eth_proto_lp_adv));
 758
 759         cmd->supported = 0;
 760         cmd->advertising = 0;
 761
 762         cmd->supported |= ptys_get_supported_port(&ptys_reg);
 763
 764         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 765         cmd->supported |= ptys2ethtool_link_modes(eth_proto, SUPPORTED);
 766
 767         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 768         cmd->advertising |= ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 769
 770         cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 771         cmd->advertising |= (priv->prof->tx_pause) ? ADVERTISED_Pause : 0;
 772
 773         cmd->advertising |= (priv->prof->tx_pause ^ priv->prof->rx_pause) ?
 774                 ADVERTISED_Asym_Pause : 0;
 775
 776         cmd->port = ptys_get_active_port(&ptys_reg);
 777         cmd->transceiver = (SUPPORTED_TP & cmd->supported) ?
 778                 XCVR_EXTERNAL : XCVR_INTERNAL;
 779
 780         if (mlx4_en_autoneg_get(dev)) {
 781                 cmd->supported |= SUPPORTED_Autoneg;
 782                 cmd->advertising |= ADVERTISED_Autoneg;
 783         }
 784
 785         cmd->autoneg = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 786                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 787
 788         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 789         cmd->lp_advertising = ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 790
 791         cmd->lp_advertising |= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 792                         ADVERTISED_Autoneg : 0;
 793
 794         cmd->phy_address = 0;
 795         cmd->mdio_support = 0;
 796         cmd->maxtxpkt = 0;
 797         cmd->maxrxpkt = 0;
 798         cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 799         cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 800
 801         return ret;
 802 }
 803
 804 static void ethtool_get_default_settings(struct net_device *dev,
 805                                          struct ethtool_cmd *cmd)
 806 {
 807         struct mlx4_en_priv *priv = netdev_priv(dev);
 808         int trans_type;
 809
 810         cmd->autoneg = AUTONEG_DISABLE;
 811         cmd->supported = SUPPORTED_10000baseT_Full;
 812         cmd->advertising = ADVERTISED_10000baseT_Full;
 813         trans_type = priv->port_state.transceiver;
 814
 815         if (trans_type > 0 && trans_type <= 0xC) {
 816                 cmd->port = PORT_FIBRE;
 817                 cmd->transceiver = XCVR_EXTERNAL;
 818                 cmd->supported |= SUPPORTED_FIBRE;
 819                 cmd->advertising |= ADVERTISED_FIBRE;
 820         } else if (trans_type == 0x80 || trans_type == 0) {
 821                 cmd->port = PORT_TP;
 822                 cmd->transceiver = XCVR_INTERNAL;
 823                 cmd->supported |= SUPPORTED_TP;
 824                 cmd->advertising |= ADVERTISED_TP;
 825         } else  {
 826                 cmd->port = -1;
 827                 cmd->transceiver = -1;
 828         }
 829 }
 830
 831 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 832 {
 833         struct mlx4_en_priv *priv = netdev_priv(dev);
 834         int ret = -EINVAL;
 835
 836         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 837                 return -ENOMEM;
 838
 839         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 840                priv->port_state.flags & MLX4_EN_PORT_ANC,
 841                priv->port_state.flags & MLX4_EN_PORT_ANE);
 842
 843         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 844                 ret = ethtool_get_ptys_settings(dev, cmd);
 845         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 846                 ethtool_get_default_settings(dev, cmd);
 847
 848         if (netif_carrier_ok(dev)) {
 849                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 850                 cmd->duplex = DUPLEX_FULL;
 851         } else {
 852                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 853                 cmd->duplex = DUPLEX_UNKNOWN;
 854         }
 855         return 0;
 856 }
 857
 858 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 859 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 860                                    __be32 proto_cap)
 861 {
 862         __be32 proto_admin = 0;
 863
 864         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 865                 proto_admin = proto_cap;
 866                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 867                         be32_to_cpu(proto_cap));
 868         } else {
 869                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 870
 871                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 872                 en_info(priv, "Setting Speed to %d\n", speed);
 873         }
 874         return proto_admin;
 875 }
 876
 877 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 878 {
 879         struct mlx4_en_priv *priv = netdev_priv(dev);
 880         struct mlx4_ptys_reg ptys_reg;
 881         __be32 proto_admin;
 882         int ret;
 883
 884         u32 ptys_adv = ethtool2ptys_link_modes(cmd->advertising, ADVERTISED);
 885         int speed = ethtool_cmd_speed(cmd);
 886
 887         en_dbg(DRV, priv, "Set Speed=%d adv=0x%x autoneg=%d duplex=%d\n",
 888                speed, cmd->advertising, cmd->autoneg, cmd->duplex);
 889
 890         if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 891             (cmd->duplex == DUPLEX_HALF))
 892                 return -EINVAL;
 893
 894         memset(&ptys_reg, 0, sizeof(ptys_reg));
 895         ptys_reg.local_port = priv->port;
 896         ptys_reg.proto_mask = MLX4_PTYS_EN;
 897         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 898                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 899         if (ret) {
 900                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 901                         ret);
 902                 return 0;
 903         }
 904
 905         proto_admin = cmd->autoneg == AUTONEG_ENABLE ?
 906                 cpu_to_be32(ptys_adv) :
 907                 speed_set_ptys_admin(priv, speed,
 908                                      ptys_reg.eth_proto_cap);
 909
 910         proto_admin &= ptys_reg.eth_proto_cap;
 911         if (!proto_admin) {
 912                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 913                 return -EINVAL; /* nothing to change due to bad input */
 914         }
 915
 916         if (proto_admin == ptys_reg.eth_proto_admin)
 917                 return 0; /* Nothing to change */
 918
 919         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 920                be32_to_cpu(proto_admin));
 921
 922         ptys_reg.eth_proto_admin = proto_admin;
 923         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 924                                    &ptys_reg);
 925         if (ret) {
 926                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 927                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 928                 return ret;
 929         }
 930
 931         mutex_lock(&priv->mdev->state_lock);
 932         if (priv->port_up) {
 933                 en_warn(priv, "Port link mode changed, restarting port...\n");
 934                 mlx4_en_stop_port(dev, 1);
 935                 if (mlx4_en_start_port(dev))
 936                         en_err(priv, "Failed restarting port %d\n", priv->port);
 937         }
 938         mutex_unlock(&priv->mdev->state_lock);
 939         return 0;
 940 }
 941
 942 static int mlx4_en_get_coalesce(struct net_device *dev,
 943                               struct ethtool_coalesce *coal)
 944 {
 945         struct mlx4_en_priv *priv = netdev_priv(dev);
 946
 947         coal->tx_coalesce_usecs = priv->tx_usecs;
 948         coal->tx_max_coalesced_frames = priv->tx_frames;
 949         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 950
 951         coal->rx_coalesce_usecs = priv->rx_usecs;
 952         coal->rx_max_coalesced_frames = priv->rx_frames;
 953
 954         coal->pkt_rate_low = priv->pkt_rate_low;
 955         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 956         coal->pkt_rate_high = priv->pkt_rate_high;
 957         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 958         coal->rate_sample_interval = priv->sample_interval;
 959         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 960
 961         return 0;
 962 }
 963
 964 static int mlx4_en_set_coalesce(struct net_device *dev,
 965                               struct ethtool_coalesce *coal)
 966 {
 967         struct mlx4_en_priv *priv = netdev_priv(dev);
 968
 969         if (!coal->tx_max_coalesced_frames_irq)
 970                 return -EINVAL;
 971
 972         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 973                            MLX4_EN_AUTO_CONF) ?
 974                                 MLX4_EN_RX_COAL_TARGET :
 975                                 coal->rx_max_coalesced_frames;
 976         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 977                           MLX4_EN_AUTO_CONF) ?
 978                                 MLX4_EN_RX_COAL_TIME :
 979                                 coal->rx_coalesce_usecs;
 980
 981         /* Setting TX coalescing parameters */
 982         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 983             coal->tx_max_coalesced_frames != priv->tx_frames) {
 984                 priv->tx_usecs = coal->tx_coalesce_usecs;
 985                 priv->tx_frames = coal->tx_max_coalesced_frames;
 986         }
 987
 988         /* Set adaptive coalescing params */
 989         priv->pkt_rate_low = coal->pkt_rate_low;
 990         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 991         priv->pkt_rate_high = coal->pkt_rate_high;
 992         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 993         priv->sample_interval = coal->rate_sample_interval;
 994         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 995         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
 996
 997         return mlx4_en_moderation_update(priv);
 998 }
 999
1000 static int mlx4_en_set_pauseparam(struct net_device *dev,
1001                                 struct ethtool_pauseparam *pause)
1002 {
1003         struct mlx4_en_priv *priv = netdev_priv(dev);
1004         struct mlx4_en_dev *mdev = priv->mdev;
1005         int err;
1006
1007         if (pause->autoneg)
1008                 return -EINVAL;
1009
1010         priv->prof->tx_pause = pause->tx_pause != 0;
1011         priv->prof->rx_pause = pause->rx_pause != 0;
1012         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1013                                     priv->rx_skb_size + ETH_FCS_LEN,
1014                                     priv->prof->tx_pause,
1015                                     priv->prof->tx_ppp,
1016                                     priv->prof->rx_pause,
1017                                     priv->prof->rx_ppp);
1018         if (err)
1019                 en_err(priv, "Failed setting pause params\n");
1020         else
1021                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1022                                                 priv->prof->rx_ppp,
1023                                                 priv->prof->rx_pause,
1024                                                 priv->prof->tx_ppp,
1025                                                 priv->prof->tx_pause);
1026
1027         return err;
1028 }
1029
1030 static void mlx4_en_get_pauseparam(struct net_device *dev,
1031                                  struct ethtool_pauseparam *pause)
1032 {
1033         struct mlx4_en_priv *priv = netdev_priv(dev);
1034
1035         pause->tx_pause = priv->prof->tx_pause;
1036         pause->rx_pause = priv->prof->rx_pause;
1037 }
1038
1039 static int mlx4_en_set_ringparam(struct net_device *dev,
1040                                  struct ethtool_ringparam *param)
1041 {
1042         struct mlx4_en_priv *priv = netdev_priv(dev);
1043         struct mlx4_en_dev *mdev = priv->mdev;
1044         u32 rx_size, tx_size;
1045         int port_up = 0;
1046         int err = 0;
1047
1048         if (param->rx_jumbo_pending || param->rx_mini_pending)
1049                 return -EINVAL;
1050
1051         rx_size = roundup_pow_of_two(param->rx_pending);
1052         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1053         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1054         tx_size = roundup_pow_of_two(param->tx_pending);
1055         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1056         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1057
1058         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1059                                         priv->rx_ring[0]->size) &&
1060             tx_size == priv->tx_ring[0]->size)
1061                 return 0;
1062
1063         mutex_lock(&mdev->state_lock);
1064         if (priv->port_up) {
1065                 port_up = 1;
1066                 mlx4_en_stop_port(dev, 1);
1067         }
1068
1069         mlx4_en_free_resources(priv);
1070
1071         priv->prof->tx_ring_size = tx_size;
1072         priv->prof->rx_ring_size = rx_size;
1073
1074         err = mlx4_en_alloc_resources(priv);
1075         if (err) {
1076                 en_err(priv, "Failed reallocating port resources\n");
1077                 goto out;
1078         }
1079         if (port_up) {
1080                 err = mlx4_en_start_port(dev);
1081                 if (err)
1082                         en_err(priv, "Failed starting port\n");
1083         }
1084
1085         err = mlx4_en_moderation_update(priv);
1086
1087 out:
1088         mutex_unlock(&mdev->state_lock);
1089         return err;
1090 }
1091
1092 static void mlx4_en_get_ringparam(struct net_device *dev,
1093                                   struct ethtool_ringparam *param)
1094 {
1095         struct mlx4_en_priv *priv = netdev_priv(dev);
1096
1097         memset(param, 0, sizeof(*param));
1098         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1099         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1100         param->rx_pending = priv->port_up ?
1101                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1102         param->tx_pending = priv->tx_ring[0]->size;
1103 }
1104
1105 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1106 {
1107         struct mlx4_en_priv *priv = netdev_priv(dev);
1108
1109         return priv->rx_ring_num;
1110 }
1111
1112 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1113 {
1114         return MLX4_EN_RSS_KEY_SIZE;
1115 }
1116
1117 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1118 {
1119         struct mlx4_en_priv *priv = netdev_priv(dev);
1120
1121         /* check if requested function is supported by the device */
1122         if (hfunc == ETH_RSS_HASH_TOP) {
1123                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1124                         return -EINVAL;
1125                 if (!(dev->features & NETIF_F_RXHASH))
1126                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1127                 return 0;
1128         } else if (hfunc == ETH_RSS_HASH_XOR) {
1129                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1130                         return -EINVAL;
1131                 if (dev->features & NETIF_F_RXHASH)
1132                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1133                 return 0;
1134         }
1135
1136         return -EINVAL;
1137 }
1138
1139 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1140                             u8 *hfunc)
1141 {
1142         struct mlx4_en_priv *priv = netdev_priv(dev);
1143         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
1144         int rss_rings;
1145         size_t n = priv->rx_ring_num;
1146         int err = 0;
1147
1148         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
1149         rss_rings = 1 << ilog2(rss_rings);
1150
1151         while (n--) {
1152                 if (!ring_index)
1153                         break;
1154                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
1155                         rss_map->base_qpn;
1156         }
1157         if (key)
1158                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1159         if (hfunc)
1160                 *hfunc = priv->rss_hash_fn;
1161         return err;
1162 }
1163
1164 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1165                             const u8 *key, const u8 hfunc)
1166 {
1167         struct mlx4_en_priv *priv = netdev_priv(dev);
1168         struct mlx4_en_dev *mdev = priv->mdev;
1169         int port_up = 0;
1170         int err = 0;
1171         int i;
1172         int rss_rings = 0;
1173
1174         /* Calculate RSS table size and make sure flows are spread evenly
1175          * between rings
1176          */
1177         for (i = 0; i < priv->rx_ring_num; i++) {
1178                 if (!ring_index)
1179                         continue;
1180                 if (i > 0 && !ring_index[i] && !rss_rings)
1181                         rss_rings = i;
1182
1183                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
1184                         return -EINVAL;
1185         }
1186
1187         if (!rss_rings)
1188                 rss_rings = priv->rx_ring_num;
1189
1190         /* RSS table size must be an order of 2 */
1191         if (!is_power_of_2(rss_rings))
1192                 return -EINVAL;
1193
1194         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1195                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1196                 if (err)
1197                         return err;
1198         }
1199
1200         mutex_lock(&mdev->state_lock);
1201         if (priv->port_up) {
1202                 port_up = 1;
1203                 mlx4_en_stop_port(dev, 1);
1204         }
1205
1206         if (ring_index)
1207                 priv->prof->rss_rings = rss_rings;
1208         if (key)
1209                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1210         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1211                 priv->rss_hash_fn = hfunc;
1212
1213         if (port_up) {
1214                 err = mlx4_en_start_port(dev);
1215                 if (err)
1216                         en_err(priv, "Failed starting port\n");
1217         }
1218
1219         mutex_unlock(&mdev->state_lock);
1220         return err;
1221 }
1222
1223 #define all_zeros_or_all_ones(field)            \
1224         ((field) == 0 || (field) == (__force typeof(field))-1)
1225
1226 static int mlx4_en_validate_flow(struct net_device *dev,
1227                                  struct ethtool_rxnfc *cmd)
1228 {
1229         struct ethtool_usrip4_spec *l3_mask;
1230         struct ethtool_tcpip4_spec *l4_mask;
1231         struct ethhdr *eth_mask;
1232
1233         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1234                 return -EINVAL;
1235
1236         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1237                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1238                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1239                         return -EINVAL;
1240         }
1241
1242         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1243         case TCP_V4_FLOW:
1244         case UDP_V4_FLOW:
1245                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1246                         return -EINVAL;
1247                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1248                 /* don't allow mask which isn't all 0 or 1 */
1249                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1250                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1251                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1252                     !all_zeros_or_all_ones(l4_mask->pdst))
1253                         return -EINVAL;
1254                 break;
1255         case IP_USER_FLOW:
1256                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1257                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1258                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1259                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1260                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1261                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1262                         return -EINVAL;
1263                 break;
1264         case ETHER_FLOW:
1265                 eth_mask = &cmd->fs.m_u.ether_spec;
1266                 /* source mac mask must not be set */
1267                 if (!is_zero_ether_addr(eth_mask->h_source))
1268                         return -EINVAL;
1269
1270                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1271                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1272                         return -EINVAL;
1273
1274                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1275                         return -EINVAL;
1276                 break;
1277         default:
1278                 return -EINVAL;
1279         }
1280
1281         if ((cmd->fs.flow_type & FLOW_EXT)) {
1282                 if (cmd->fs.m_ext.vlan_etype ||
1283                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1284                       0 ||
1285                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1286                       cpu_to_be16(VLAN_VID_MASK)))
1287                         return -EINVAL;
1288
1289                 if (cmd->fs.m_ext.vlan_tci) {
1290                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1291                                 return -EINVAL;
1292
1293                 }
1294         }
1295
1296         return 0;
1297 }
1298
1299 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1300                                         struct list_head *rule_list_h,
1301                                         struct mlx4_spec_list *spec_l2,
1302                                         unsigned char *mac)
1303 {
1304         int err = 0;
1305         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1306
1307         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1308         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1309         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1310
1311         if ((cmd->fs.flow_type & FLOW_EXT) &&
1312             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1313                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1314                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1315         }
1316
1317         list_add_tail(&spec_l2->list, rule_list_h);
1318
1319         return err;
1320 }
1321
1322 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1323                                                 struct ethtool_rxnfc *cmd,
1324                                                 struct list_head *rule_list_h,
1325                                                 struct mlx4_spec_list *spec_l2,
1326                                                 __be32 ipv4_dst)
1327 {
1328 #ifdef CONFIG_INET
1329         unsigned char mac[ETH_ALEN];
1330
1331         if (!ipv4_is_multicast(ipv4_dst)) {
1332                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1333                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1334                 else
1335                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1336         } else {
1337                 ip_eth_mc_map(ipv4_dst, mac);
1338         }
1339
1340         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1341 #else
1342         return -EINVAL;
1343 #endif
1344 }
1345
1346 static int add_ip_rule(struct mlx4_en_priv *priv,
1347                        struct ethtool_rxnfc *cmd,
1348                        struct list_head *list_h)
1349 {
1350         int err;
1351         struct mlx4_spec_list *spec_l2 = NULL;
1352         struct mlx4_spec_list *spec_l3 = NULL;
1353         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1354
1355         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1356         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1357         if (!spec_l2 || !spec_l3) {
1358                 err = -ENOMEM;
1359                 goto free_spec;
1360         }
1361
1362         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1363                                                    cmd->fs.h_u.
1364                                                    usr_ip4_spec.ip4dst);
1365         if (err)
1366                 goto free_spec;
1367         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1368         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1369         if (l3_mask->ip4src)
1370                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1371         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1372         if (l3_mask->ip4dst)
1373                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1374         list_add_tail(&spec_l3->list, list_h);
1375
1376         return 0;
1377
1378 free_spec:
1379         kfree(spec_l2);
1380         kfree(spec_l3);
1381         return err;
1382 }
1383
1384 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1385                              struct ethtool_rxnfc *cmd,
1386                              struct list_head *list_h, int proto)
1387 {
1388         int err;
1389         struct mlx4_spec_list *spec_l2 = NULL;
1390         struct mlx4_spec_list *spec_l3 = NULL;
1391         struct mlx4_spec_list *spec_l4 = NULL;
1392         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1393
1394         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1395         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1396         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1397         if (!spec_l2 || !spec_l3 || !spec_l4) {
1398                 err = -ENOMEM;
1399                 goto free_spec;
1400         }
1401
1402         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1403
1404         if (proto == TCP_V4_FLOW) {
1405                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1406                                                            spec_l2,
1407                                                            cmd->fs.h_u.
1408                                                            tcp_ip4_spec.ip4dst);
1409                 if (err)
1410                         goto free_spec;
1411                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1412                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1413                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1414                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1415                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1416         } else {
1417                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1418                                                            spec_l2,
1419                                                            cmd->fs.h_u.
1420                                                            udp_ip4_spec.ip4dst);
1421                 if (err)
1422                         goto free_spec;
1423                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1424                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1425                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1426                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1427                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1428         }
1429
1430         if (l4_mask->ip4src)
1431                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1432         if (l4_mask->ip4dst)
1433                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1434
1435         if (l4_mask->psrc)
1436                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1437         if (l4_mask->pdst)
1438                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1439
1440         list_add_tail(&spec_l3->list, list_h);
1441         list_add_tail(&spec_l4->list, list_h);
1442
1443         return 0;
1444
1445 free_spec:
1446         kfree(spec_l2);
1447         kfree(spec_l3);
1448         kfree(spec_l4);
1449         return err;
1450 }
1451
1452 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1453                                              struct ethtool_rxnfc *cmd,
1454                                              struct list_head *rule_list_h)
1455 {
1456         int err;
1457         struct ethhdr *eth_spec;
1458         struct mlx4_spec_list *spec_l2;
1459         struct mlx4_en_priv *priv = netdev_priv(dev);
1460
1461         err = mlx4_en_validate_flow(dev, cmd);
1462         if (err)
1463                 return err;
1464
1465         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1466         case ETHER_FLOW:
1467                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1468                 if (!spec_l2)
1469                         return -ENOMEM;
1470
1471                 eth_spec = &cmd->fs.h_u.ether_spec;
1472                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1473                                              &eth_spec->h_dest[0]);
1474                 spec_l2->eth.ether_type = eth_spec->h_proto;
1475                 if (eth_spec->h_proto)
1476                         spec_l2->eth.ether_type_enable = 1;
1477                 break;
1478         case IP_USER_FLOW:
1479                 err = add_ip_rule(priv, cmd, rule_list_h);
1480                 break;
1481         case TCP_V4_FLOW:
1482                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1483                 break;
1484         case UDP_V4_FLOW:
1485                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1486                 break;
1487         }
1488
1489         return err;
1490 }
1491
1492 static int mlx4_en_flow_replace(struct net_device *dev,
1493                                 struct ethtool_rxnfc *cmd)
1494 {
1495         int err;
1496         struct mlx4_en_priv *priv = netdev_priv(dev);
1497         struct ethtool_flow_id *loc_rule;
1498         struct mlx4_spec_list *spec, *tmp_spec;
1499         u32 qpn;
1500         u64 reg_id;
1501
1502         struct mlx4_net_trans_rule rule = {
1503                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1504                 .exclusive = 0,
1505                 .allow_loopback = 1,
1506                 .promisc_mode = MLX4_FS_REGULAR,
1507         };
1508
1509         rule.port = priv->port;
1510         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1511         INIT_LIST_HEAD(&rule.list);
1512
1513         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1514         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1515                 qpn = priv->drop_qp.qpn;
1516         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1517                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1518         } else {
1519                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1520                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1521                                 cmd->fs.ring_cookie);
1522                         return -EINVAL;
1523                 }
1524                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1525                 if (!qpn) {
1526                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1527                                 cmd->fs.ring_cookie);
1528                         return -EINVAL;
1529                 }
1530         }
1531         rule.qpn = qpn;
1532         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1533         if (err)
1534                 goto out_free_list;
1535
1536         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1537         if (loc_rule->id) {
1538                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1539                 if (err) {
1540                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1541                                cmd->fs.location, loc_rule->id);
1542                         goto out_free_list;
1543                 }
1544                 loc_rule->id = 0;
1545                 memset(&loc_rule->flow_spec, 0,
1546                        sizeof(struct ethtool_rx_flow_spec));
1547                 list_del(&loc_rule->list);
1548         }
1549         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1550         if (err) {
1551                 en_err(priv, "Fail to attach network rule at location %d\n",
1552                        cmd->fs.location);
1553                 goto out_free_list;
1554         }
1555         loc_rule->id = reg_id;
1556         memcpy(&loc_rule->flow_spec, &cmd->fs,
1557                sizeof(struct ethtool_rx_flow_spec));
1558         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1559
1560 out_free_list:
1561         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1562                 list_del(&spec->list);
1563                 kfree(spec);
1564         }
1565         return err;
1566 }
1567
1568 static int mlx4_en_flow_detach(struct net_device *dev,
1569                                struct ethtool_rxnfc *cmd)
1570 {
1571         int err = 0;
1572         struct ethtool_flow_id *rule;
1573         struct mlx4_en_priv *priv = netdev_priv(dev);
1574
1575         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1576                 return -EINVAL;
1577
1578         rule = &priv->ethtool_rules[cmd->fs.location];
1579         if (!rule->id) {
1580                 err =  -ENOENT;
1581                 goto out;
1582         }
1583
1584         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1585         if (err) {
1586                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1587                        cmd->fs.location, rule->id);
1588                 goto out;
1589         }
1590         rule->id = 0;
1591         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1592         list_del(&rule->list);
1593 out:
1594         return err;
1595
1596 }
1597
1598 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1599                             int loc)
1600 {
1601         int err = 0;
1602         struct ethtool_flow_id *rule;
1603         struct mlx4_en_priv *priv = netdev_priv(dev);
1604
1605         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1606                 return -EINVAL;
1607
1608         rule = &priv->ethtool_rules[loc];
1609         if (rule->id)
1610                 memcpy(&cmd->fs, &rule->flow_spec,
1611                        sizeof(struct ethtool_rx_flow_spec));
1612         else
1613                 err = -ENOENT;
1614
1615         return err;
1616 }
1617
1618 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1619 {
1620
1621         int i, res = 0;
1622         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1623                 if (priv->ethtool_rules[i].id)
1624                         res++;
1625         }
1626         return res;
1627
1628 }
1629
1630 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1631                              u32 *rule_locs)
1632 {
1633         struct mlx4_en_priv *priv = netdev_priv(dev);
1634         struct mlx4_en_dev *mdev = priv->mdev;
1635         int err = 0;
1636         int i = 0, priority = 0;
1637
1638         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1639              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1640              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1641             (mdev->dev->caps.steering_mode !=
1642              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1643                 return -EINVAL;
1644
1645         switch (cmd->cmd) {
1646         case ETHTOOL_GRXRINGS:
1647                 cmd->data = priv->rx_ring_num;
1648                 break;
1649         case ETHTOOL_GRXCLSRLCNT:
1650                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1651                 break;
1652         case ETHTOOL_GRXCLSRULE:
1653                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1654                 break;
1655         case ETHTOOL_GRXCLSRLALL:
1656                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1657                         err = mlx4_en_get_flow(dev, cmd, i);
1658                         if (!err)
1659                                 rule_locs[priority++] = i;
1660                         i++;
1661                 }
1662                 err = 0;
1663                 break;
1664         default:
1665                 err = -EOPNOTSUPP;
1666                 break;
1667         }
1668
1669         return err;
1670 }
1671
1672 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1673 {
1674         int err = 0;
1675         struct mlx4_en_priv *priv = netdev_priv(dev);
1676         struct mlx4_en_dev *mdev = priv->mdev;
1677
1678         if (mdev->dev->caps.steering_mode !=
1679             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1680                 return -EINVAL;
1681
1682         switch (cmd->cmd) {
1683         case ETHTOOL_SRXCLSRLINS:
1684                 err = mlx4_en_flow_replace(dev, cmd);
1685                 break;
1686         case ETHTOOL_SRXCLSRLDEL:
1687                 err = mlx4_en_flow_detach(dev, cmd);
1688                 break;
1689         default:
1690                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1691                 return -EINVAL;
1692         }
1693
1694         return err;
1695 }
1696
1697 static void mlx4_en_get_channels(struct net_device *dev,
1698                                  struct ethtool_channels *channel)
1699 {
1700         struct mlx4_en_priv *priv = netdev_priv(dev);
1701
1702         memset(channel, 0, sizeof(*channel));
1703
1704         channel->max_rx = MAX_RX_RINGS;
1705         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1706
1707         channel->rx_count = priv->rx_ring_num;
1708         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1709 }
1710
1711 static int mlx4_en_set_channels(struct net_device *dev,
1712                                 struct ethtool_channels *channel)
1713 {
1714         struct mlx4_en_priv *priv = netdev_priv(dev);
1715         struct mlx4_en_dev *mdev = priv->mdev;
1716         int port_up = 0;
1717         int err = 0;
1718
1719         if (channel->other_count || channel->combined_count ||
1720             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1721             channel->rx_count > MAX_RX_RINGS ||
1722             !channel->tx_count || !channel->rx_count)
1723                 return -EINVAL;
1724
1725         mutex_lock(&mdev->state_lock);
1726         if (priv->port_up) {
1727                 port_up = 1;
1728                 mlx4_en_stop_port(dev, 1);
1729         }
1730
1731         mlx4_en_free_resources(priv);
1732
1733         priv->num_tx_rings_p_up = channel->tx_count;
1734         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1735         priv->rx_ring_num = channel->rx_count;
1736
1737         err = mlx4_en_alloc_resources(priv);
1738         if (err) {
1739                 en_err(priv, "Failed reallocating port resources\n");
1740                 goto out;
1741         }
1742
1743         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1744         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1745
1746         if (dev->num_tc)
1747                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1748
1749         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1750         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1751
1752         if (port_up) {
1753                 err = mlx4_en_start_port(dev);
1754                 if (err)
1755                         en_err(priv, "Failed starting port\n");
1756         }
1757
1758         err = mlx4_en_moderation_update(priv);
1759
1760 out:
1761         mutex_unlock(&mdev->state_lock);
1762         return err;
1763 }
1764
1765 static int mlx4_en_get_ts_info(struct net_device *dev,
1766                                struct ethtool_ts_info *info)
1767 {
1768         struct mlx4_en_priv *priv = netdev_priv(dev);
1769         struct mlx4_en_dev *mdev = priv->mdev;
1770         int ret;
1771
1772         ret = ethtool_op_get_ts_info(dev, info);
1773         if (ret)
1774                 return ret;
1775
1776         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1777                 info->so_timestamping |=
1778                         SOF_TIMESTAMPING_TX_HARDWARE |
1779                         SOF_TIMESTAMPING_RX_HARDWARE |
1780                         SOF_TIMESTAMPING_RAW_HARDWARE;
1781
1782                 info->tx_types =
1783                         (1 << HWTSTAMP_TX_OFF) |
1784                         (1 << HWTSTAMP_TX_ON);
1785
1786                 info->rx_filters =
1787                         (1 << HWTSTAMP_FILTER_NONE) |
1788                         (1 << HWTSTAMP_FILTER_ALL);
1789
1790                 if (mdev->ptp_clock)
1791                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1792         }
1793
1794         return ret;
1795 }
1796
1797 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1798 {
1799         struct mlx4_en_priv *priv = netdev_priv(dev);
1800         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1801         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1802         int i;
1803
1804         if (bf_enabled_new != bf_enabled_old) {
1805                 if (bf_enabled_new) {
1806                         bool bf_supported = true;
1807
1808                         for (i = 0; i < priv->tx_ring_num; i++)
1809                                 bf_supported &= priv->tx_ring[i]->bf_alloced;
1810
1811                         if (!bf_supported) {
1812                                 en_err(priv, "BlueFlame is not supported\n");
1813                                 return -EINVAL;
1814                         }
1815
1816                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1817                 } else {
1818                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1819                 }
1820
1821                 for (i = 0; i < priv->tx_ring_num; i++)
1822                         priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1823
1824                 en_info(priv, "BlueFlame %s\n",
1825                         bf_enabled_new ?  "Enabled" : "Disabled");
1826         }
1827
1828         return 0;
1829 }
1830
1831 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1832 {
1833         struct mlx4_en_priv *priv = netdev_priv(dev);
1834
1835         return priv->pflags;
1836 }
1837
1838 static int mlx4_en_get_tunable(struct net_device *dev,
1839                                const struct ethtool_tunable *tuna,
1840                                void *data)
1841 {
1842         const struct mlx4_en_priv *priv = netdev_priv(dev);
1843         int ret = 0;
1844
1845         switch (tuna->id) {
1846         case ETHTOOL_TX_COPYBREAK:
1847                 *(u32 *)data = priv->prof->inline_thold;
1848                 break;
1849         default:
1850                 ret = -EINVAL;
1851                 break;
1852         }
1853
1854         return ret;
1855 }
1856
1857 static int mlx4_en_set_tunable(struct net_device *dev,
1858                                const struct ethtool_tunable *tuna,
1859                                const void *data)
1860 {
1861         struct mlx4_en_priv *priv = netdev_priv(dev);
1862         int val, ret = 0;
1863
1864         switch (tuna->id) {
1865         case ETHTOOL_TX_COPYBREAK:
1866                 val = *(u32 *)data;
1867                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1868                         ret = -EINVAL;
1869                 else
1870                         priv->prof->inline_thold = val;
1871                 break;
1872         default:
1873                 ret = -EINVAL;
1874                 break;
1875         }
1876
1877         return ret;
1878 }
1879
1880 static int mlx4_en_get_module_info(struct net_device *dev,
1881                                    struct ethtool_modinfo *modinfo)
1882 {
1883         struct mlx4_en_priv *priv = netdev_priv(dev);
1884         struct mlx4_en_dev *mdev = priv->mdev;
1885         int ret;
1886         u8 data[4];
1887
1888         /* Read first 2 bytes to get Module & REV ID */
1889         ret = mlx4_get_module_info(mdev->dev, priv->port,
1890                                    0/*offset*/, 2/*size*/, data);
1891         if (ret < 2)
1892                 return -EIO;
1893
1894         switch (data[0] /* identifier */) {
1895         case MLX4_MODULE_ID_QSFP:
1896                 modinfo->type = ETH_MODULE_SFF_8436;
1897                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1898                 break;
1899         case MLX4_MODULE_ID_QSFP_PLUS:
1900                 if (data[1] >= 0x3) { /* revision id */
1901                         modinfo->type = ETH_MODULE_SFF_8636;
1902                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1903                 } else {
1904                         modinfo->type = ETH_MODULE_SFF_8436;
1905                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1906                 }
1907                 break;
1908         case MLX4_MODULE_ID_QSFP28:
1909                 modinfo->type = ETH_MODULE_SFF_8636;
1910                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1911                 break;
1912         case MLX4_MODULE_ID_SFP:
1913                 modinfo->type = ETH_MODULE_SFF_8472;
1914                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1915                 break;
1916         default:
1917                 return -ENOSYS;
1918         }
1919
1920         return 0;
1921 }
1922
1923 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1924                                      struct ethtool_eeprom *ee,
1925                                      u8 *data)
1926 {
1927         struct mlx4_en_priv *priv = netdev_priv(dev);
1928         struct mlx4_en_dev *mdev = priv->mdev;
1929         int offset = ee->offset;
1930         int i = 0, ret;
1931
1932         if (ee->len == 0)
1933                 return -EINVAL;
1934
1935         memset(data, 0, ee->len);
1936
1937         while (i < ee->len) {
1938                 en_dbg(DRV, priv,
1939                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1940                        i, offset, ee->len - i);
1941
1942                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1943                                            offset, ee->len - i, data + i);
1944
1945                 if (!ret) /* Done reading */
1946                         return 0;
1947
1948                 if (ret < 0) {
1949                         en_err(priv,
1950                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1951                                i, offset, ee->len - i, ret);
1952                         return 0;
1953                 }
1954
1955                 i += ret;
1956                 offset += ret;
1957         }
1958         return 0;
1959 }
1960
1961 static int mlx4_en_set_phys_id(struct net_device *dev,
1962                                enum ethtool_phys_id_state state)
1963 {
1964         int err;
1965         u16 beacon_duration;
1966         struct mlx4_en_priv *priv = netdev_priv(dev);
1967         struct mlx4_en_dev *mdev = priv->mdev;
1968
1969         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
1970                 return -EOPNOTSUPP;
1971
1972         switch (state) {
1973         case ETHTOOL_ID_ACTIVE:
1974                 beacon_duration = PORT_BEACON_MAX_LIMIT;
1975                 break;
1976         case ETHTOOL_ID_INACTIVE:
1977                 beacon_duration = 0;
1978                 break;
1979         default:
1980                 return -EOPNOTSUPP;
1981         }
1982
1983         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
1984         return err;
1985 }
1986
1987 const struct ethtool_ops mlx4_en_ethtool_ops = {
1988         .get_drvinfo = mlx4_en_get_drvinfo,
1989         .get_settings = mlx4_en_get_settings,
1990         .set_settings = mlx4_en_set_settings,
1991         .get_link = ethtool_op_get_link,
1992         .get_strings = mlx4_en_get_strings,
1993         .get_sset_count = mlx4_en_get_sset_count,
1994         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1995         .self_test = mlx4_en_self_test,
1996         .set_phys_id = mlx4_en_set_phys_id,
1997         .get_wol = mlx4_en_get_wol,
1998         .set_wol = mlx4_en_set_wol,
1999         .get_msglevel = mlx4_en_get_msglevel,
2000         .set_msglevel = mlx4_en_set_msglevel,
2001         .get_coalesce = mlx4_en_get_coalesce,
2002         .set_coalesce = mlx4_en_set_coalesce,
2003         .get_pauseparam = mlx4_en_get_pauseparam,
2004         .set_pauseparam = mlx4_en_set_pauseparam,
2005         .get_ringparam = mlx4_en_get_ringparam,
2006         .set_ringparam = mlx4_en_set_ringparam,
2007         .get_rxnfc = mlx4_en_get_rxnfc,
2008         .set_rxnfc = mlx4_en_set_rxnfc,
2009         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2010         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2011         .get_rxfh = mlx4_en_get_rxfh,
2012         .set_rxfh = mlx4_en_set_rxfh,
2013         .get_channels = mlx4_en_get_channels,
2014         .set_channels = mlx4_en_set_channels,
2015         .get_ts_info = mlx4_en_get_ts_info,
2016         .set_priv_flags = mlx4_en_set_priv_flags,
2017         .get_priv_flags = mlx4_en_get_priv_flags,
2018         .get_tunable            = mlx4_en_get_tunable,
2019         .set_tunable            = mlx4_en_set_tunable,
2020         .get_module_info = mlx4_en_get_module_info,
2021         .get_module_eeprom = mlx4_en_get_module_eeprom
2022 };
2023
2024
2025
2026
2027