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         "phv-bit"
 106 };
 107
 108 static const char main_strings[][ETH_GSTRING_LEN] = {
 109         /* main statistics */
 110         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 111         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 112         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 113         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 114         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 115         "tx_heartbeat_errors", "tx_window_errors",
 116
 117         /* port statistics */
 118         "tso_packets",
 119         "xmit_more",
 120         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 121         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 122
 123         /* pf statistics */
 124         "pf_rx_packets",
 125         "pf_rx_bytes",
 126         "pf_tx_packets",
 127         "pf_tx_bytes",
 128
 129         /* priority flow control statistics rx */
 130         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 131         "rx_pause_transition_prio_0",
 132         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 133         "rx_pause_transition_prio_1",
 134         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 135         "rx_pause_transition_prio_2",
 136         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 137         "rx_pause_transition_prio_3",
 138         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 139         "rx_pause_transition_prio_4",
 140         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 141         "rx_pause_transition_prio_5",
 142         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 143         "rx_pause_transition_prio_6",
 144         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 145         "rx_pause_transition_prio_7",
 146
 147         /* flow control statistics rx */
 148         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 149
 150         /* priority flow control statistics tx */
 151         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 152         "tx_pause_transition_prio_0",
 153         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 154         "tx_pause_transition_prio_1",
 155         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 156         "tx_pause_transition_prio_2",
 157         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 158         "tx_pause_transition_prio_3",
 159         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 160         "tx_pause_transition_prio_4",
 161         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 162         "tx_pause_transition_prio_5",
 163         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 164         "tx_pause_transition_prio_6",
 165         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 166         "tx_pause_transition_prio_7",
 167
 168         /* flow control statistics tx */
 169         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 170
 171         /* packet statistics */
 172         "rx_multicast_packets",
 173         "rx_broadcast_packets",
 174         "rx_jabbers",
 175         "rx_in_range_length_error",
 176         "rx_out_range_length_error",
 177         "tx_multicast_packets",
 178         "tx_broadcast_packets",
 179         "rx_prio_0_packets", "rx_prio_0_bytes",
 180         "rx_prio_1_packets", "rx_prio_1_bytes",
 181         "rx_prio_2_packets", "rx_prio_2_bytes",
 182         "rx_prio_3_packets", "rx_prio_3_bytes",
 183         "rx_prio_4_packets", "rx_prio_4_bytes",
 184         "rx_prio_5_packets", "rx_prio_5_bytes",
 185         "rx_prio_6_packets", "rx_prio_6_bytes",
 186         "rx_prio_7_packets", "rx_prio_7_bytes",
 187         "rx_novlan_packets", "rx_novlan_bytes",
 188         "tx_prio_0_packets", "tx_prio_0_bytes",
 189         "tx_prio_1_packets", "tx_prio_1_bytes",
 190         "tx_prio_2_packets", "tx_prio_2_bytes",
 191         "tx_prio_3_packets", "tx_prio_3_bytes",
 192         "tx_prio_4_packets", "tx_prio_4_bytes",
 193         "tx_prio_5_packets", "tx_prio_5_bytes",
 194         "tx_prio_6_packets", "tx_prio_6_bytes",
 195         "tx_prio_7_packets", "tx_prio_7_bytes",
 196         "tx_novlan_packets", "tx_novlan_bytes",
 197
 198 };
 199
 200 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 201         "Interrupt Test",
 202         "Link Test",
 203         "Speed Test",
 204         "Register Test",
 205         "Loopback Test",
 206 };
 207
 208 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 209 {
 210         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 211 }
 212
 213 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 214 {
 215         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 216 }
 217
 218 static void mlx4_en_get_wol(struct net_device *netdev,
 219                             struct ethtool_wolinfo *wol)
 220 {
 221         struct mlx4_en_priv *priv = netdev_priv(netdev);
 222         int err = 0;
 223         u64 config = 0;
 224         u64 mask;
 225
 226         if ((priv->port < 1) || (priv->port > 2)) {
 227                 en_err(priv, "Failed to get WoL information\n");
 228                 return;
 229         }
 230
 231         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 232                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 233
 234         if (!(priv->mdev->dev->caps.flags & mask)) {
 235                 wol->supported = 0;
 236                 wol->wolopts = 0;
 237                 return;
 238         }
 239
 240         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 241         if (err) {
 242                 en_err(priv, "Failed to get WoL information\n");
 243                 return;
 244         }
 245
 246         if (config & MLX4_EN_WOL_MAGIC)
 247                 wol->supported = WAKE_MAGIC;
 248         else
 249                 wol->supported = 0;
 250
 251         if (config & MLX4_EN_WOL_ENABLED)
 252                 wol->wolopts = WAKE_MAGIC;
 253         else
 254                 wol->wolopts = 0;
 255 }
 256
 257 static int mlx4_en_set_wol(struct net_device *netdev,
 258                             struct ethtool_wolinfo *wol)
 259 {
 260         struct mlx4_en_priv *priv = netdev_priv(netdev);
 261         u64 config = 0;
 262         int err = 0;
 263         u64 mask;
 264
 265         if ((priv->port < 1) || (priv->port > 2))
 266                 return -EOPNOTSUPP;
 267
 268         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 269                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 270
 271         if (!(priv->mdev->dev->caps.flags & mask))
 272                 return -EOPNOTSUPP;
 273
 274         if (wol->supported & ~WAKE_MAGIC)
 275                 return -EINVAL;
 276
 277         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 278         if (err) {
 279                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 280                 return err;
 281         }
 282
 283         if (wol->wolopts & WAKE_MAGIC) {
 284                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 285                                 MLX4_EN_WOL_MAGIC;
 286         } else {
 287                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 288                 config |= MLX4_EN_WOL_DO_MODIFY;
 289         }
 290
 291         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 292         if (err)
 293                 en_err(priv, "Failed to set WoL information\n");
 294
 295         return err;
 296 }
 297
 298 struct bitmap_iterator {
 299         unsigned long *stats_bitmap;
 300         unsigned int count;
 301         unsigned int iterator;
 302         bool advance_array; /* if set, force no increments */
 303 };
 304
 305 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 306                                         unsigned long *stats_bitmap,
 307                                         int count)
 308 {
 309         h->iterator = 0;
 310         h->advance_array = !bitmap_empty(stats_bitmap, count);
 311         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 312                 : count;
 313         h->stats_bitmap = stats_bitmap;
 314 }
 315
 316 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 317 {
 318         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 319 }
 320
 321 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 322 {
 323         return h->iterator++;
 324 }
 325
 326 static inline unsigned int
 327 bitmap_iterator_count(struct bitmap_iterator *h)
 328 {
 329         return h->count;
 330 }
 331
 332 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 333 {
 334         struct mlx4_en_priv *priv = netdev_priv(dev);
 335         struct bitmap_iterator it;
 336
 337         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 338
 339         switch (sset) {
 340         case ETH_SS_STATS:
 341                 return bitmap_iterator_count(&it) +
 342                         (priv->tx_ring_num * 2) +
 343 #ifdef CONFIG_NET_RX_BUSY_POLL
 344                         (priv->rx_ring_num * 5);
 345 #else
 346                         (priv->rx_ring_num * 2);
 347 #endif
 348         case ETH_SS_TEST:
 349                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 350                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 351         case ETH_SS_PRIV_FLAGS:
 352                 return ARRAY_SIZE(mlx4_en_priv_flags);
 353         default:
 354                 return -EOPNOTSUPP;
 355         }
 356 }
 357
 358 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 359                 struct ethtool_stats *stats, uint64_t *data)
 360 {
 361         struct mlx4_en_priv *priv = netdev_priv(dev);
 362         int index = 0;
 363         int i;
 364         struct bitmap_iterator it;
 365
 366         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 367
 368         spin_lock_bh(&priv->stats_lock);
 369
 370         for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
 371                 if (bitmap_iterator_test(&it))
 372                         data[index++] = ((unsigned long *)&priv->stats)[i];
 373
 374         for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
 375                 if (bitmap_iterator_test(&it))
 376                         data[index++] = ((unsigned long *)&priv->port_stats)[i];
 377
 378         for (i = 0; i < NUM_PF_STATS; i++, bitmap_iterator_inc(&it))
 379                 if (bitmap_iterator_test(&it))
 380                         data[index++] =
 381                                 ((unsigned long *)&priv->pf_stats)[i];
 382
 383         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 384              i++, bitmap_iterator_inc(&it))
 385                 if (bitmap_iterator_test(&it))
 386                         data[index++] =
 387                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 388
 389         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 390                 if (bitmap_iterator_test(&it))
 391                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 392
 393         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 394              i++, bitmap_iterator_inc(&it))
 395                 if (bitmap_iterator_test(&it))
 396                         data[index++] =
 397                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 398
 399         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 400                 if (bitmap_iterator_test(&it))
 401                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 402
 403         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 404                 if (bitmap_iterator_test(&it))
 405                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 406
 407         for (i = 0; i < priv->tx_ring_num; i++) {
 408                 data[index++] = priv->tx_ring[i]->packets;
 409                 data[index++] = priv->tx_ring[i]->bytes;
 410         }
 411         for (i = 0; i < priv->rx_ring_num; i++) {
 412                 data[index++] = priv->rx_ring[i]->packets;
 413                 data[index++] = priv->rx_ring[i]->bytes;
 414 #ifdef CONFIG_NET_RX_BUSY_POLL
 415                 data[index++] = priv->rx_ring[i]->yields;
 416                 data[index++] = priv->rx_ring[i]->misses;
 417                 data[index++] = priv->rx_ring[i]->cleaned;
 418 #endif
 419         }
 420         spin_unlock_bh(&priv->stats_lock);
 421
 422 }
 423
 424 static void mlx4_en_self_test(struct net_device *dev,
 425                               struct ethtool_test *etest, u64 *buf)
 426 {
 427         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 428 }
 429
 430 static void mlx4_en_get_strings(struct net_device *dev,
 431                                 uint32_t stringset, uint8_t *data)
 432 {
 433         struct mlx4_en_priv *priv = netdev_priv(dev);
 434         int index = 0;
 435         int i, strings = 0;
 436         struct bitmap_iterator it;
 437
 438         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 439
 440         switch (stringset) {
 441         case ETH_SS_TEST:
 442                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 443                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 444                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 445                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 446                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 447                 break;
 448
 449         case ETH_SS_STATS:
 450                 /* Add main counters */
 451                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 452                      bitmap_iterator_inc(&it))
 453                         if (bitmap_iterator_test(&it))
 454                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 455                                        main_strings[strings]);
 456
 457                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 458                      bitmap_iterator_inc(&it))
 459                         if (bitmap_iterator_test(&it))
 460                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 461                                        main_strings[strings]);
 462
 463                 for (i = 0; i < NUM_PF_STATS; i++, strings++,
 464                      bitmap_iterator_inc(&it))
 465                         if (bitmap_iterator_test(&it))
 466                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 467                                        main_strings[strings]);
 468
 469                 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 470                      bitmap_iterator_inc(&it))
 471                         if (bitmap_iterator_test(&it))
 472                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 473                                        main_strings[strings]);
 474
 475                 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 476                      bitmap_iterator_inc(&it))
 477                         if (bitmap_iterator_test(&it))
 478                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 479                                        main_strings[strings]);
 480
 481                 for (i = 0; i < priv->tx_ring_num; i++) {
 482                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 483                                 "tx%d_packets", i);
 484                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 485                                 "tx%d_bytes", i);
 486                 }
 487                 for (i = 0; i < priv->rx_ring_num; i++) {
 488                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 489                                 "rx%d_packets", i);
 490                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 491                                 "rx%d_bytes", i);
 492 #ifdef CONFIG_NET_RX_BUSY_POLL
 493                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 494                                 "rx%d_napi_yield", i);
 495                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 496                                 "rx%d_misses", i);
 497                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 498                                 "rx%d_cleaned", i);
 499 #endif
 500                 }
 501                 break;
 502         case ETH_SS_PRIV_FLAGS:
 503                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 504                         strcpy(data + i * ETH_GSTRING_LEN,
 505                                mlx4_en_priv_flags[i]);
 506                 break;
 507
 508         }
 509 }
 510
 511 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 512 {
 513         struct mlx4_en_priv *priv = netdev_priv(dev);
 514         struct mlx4_en_dev *mdev = priv->mdev;
 515         u32 autoneg = AUTONEG_DISABLE;
 516
 517         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 518             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 519                 autoneg = AUTONEG_ENABLE;
 520
 521         return autoneg;
 522 }
 523
 524 static u32 ptys_get_supported_port(struct mlx4_ptys_reg *ptys_reg)
 525 {
 526         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 527
 528         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 529                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 530                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 531                         return SUPPORTED_TP;
 532         }
 533
 534         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 535                          | MLX4_PROT_MASK(MLX4_10GBASE_SR)
 536                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 537                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
 538                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 539                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 540                         return SUPPORTED_FIBRE;
 541         }
 542
 543         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 544                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 545                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 546                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 547                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 548                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 549                         return SUPPORTED_Backplane;
 550         }
 551         return 0;
 552 }
 553
 554 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 555 {
 556         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 557
 558         if (!eth_proto) /* link down */
 559                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 560
 561         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 562                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 563                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 564                         return PORT_TP;
 565         }
 566
 567         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 568                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 569                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 570                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 571                         return PORT_FIBRE;
 572         }
 573
 574         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 575                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 576                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 577                         return PORT_DA;
 578         }
 579
 580         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 581                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 582                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 583                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 584                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 585                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 586                         return PORT_NONE;
 587         }
 588         return PORT_OTHER;
 589 }
 590
 591 #define MLX4_LINK_MODES_SZ \
 592         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 593
 594 enum ethtool_report {
 595         SUPPORTED = 0,
 596         ADVERTISED = 1,
 597         SPEED = 2
 598 };
 599
 600 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 601 static u32 ptys2ethtool_map[MLX4_LINK_MODES_SZ][3] = {
 602         [MLX4_100BASE_TX] = {
 603                 SUPPORTED_100baseT_Full,
 604                 ADVERTISED_100baseT_Full,
 605                 SPEED_100
 606                 },
 607
 608         [MLX4_1000BASE_T] = {
 609                 SUPPORTED_1000baseT_Full,
 610                 ADVERTISED_1000baseT_Full,
 611                 SPEED_1000
 612                 },
 613         [MLX4_1000BASE_CX_SGMII] = {
 614                 SUPPORTED_1000baseKX_Full,
 615                 ADVERTISED_1000baseKX_Full,
 616                 SPEED_1000
 617                 },
 618         [MLX4_1000BASE_KX] = {
 619                 SUPPORTED_1000baseKX_Full,
 620                 ADVERTISED_1000baseKX_Full,
 621                 SPEED_1000
 622                 },
 623
 624         [MLX4_10GBASE_T] = {
 625                 SUPPORTED_10000baseT_Full,
 626                 ADVERTISED_10000baseT_Full,
 627                 SPEED_10000
 628                 },
 629         [MLX4_10GBASE_CX4] = {
 630                 SUPPORTED_10000baseKX4_Full,
 631                 ADVERTISED_10000baseKX4_Full,
 632                 SPEED_10000
 633                 },
 634         [MLX4_10GBASE_KX4] = {
 635                 SUPPORTED_10000baseKX4_Full,
 636                 ADVERTISED_10000baseKX4_Full,
 637                 SPEED_10000
 638                 },
 639         [MLX4_10GBASE_KR] = {
 640                 SUPPORTED_10000baseKR_Full,
 641                 ADVERTISED_10000baseKR_Full,
 642                 SPEED_10000
 643                 },
 644         [MLX4_10GBASE_CR] = {
 645                 SUPPORTED_10000baseKR_Full,
 646                 ADVERTISED_10000baseKR_Full,
 647                 SPEED_10000
 648                 },
 649         [MLX4_10GBASE_SR] = {
 650                 SUPPORTED_10000baseKR_Full,
 651                 ADVERTISED_10000baseKR_Full,
 652                 SPEED_10000
 653                 },
 654
 655         [MLX4_20GBASE_KR2] = {
 656                 SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full,
 657                 ADVERTISED_20000baseMLD2_Full | ADVERTISED_20000baseKR2_Full,
 658                 SPEED_20000
 659                 },
 660
 661         [MLX4_40GBASE_CR4] = {
 662                 SUPPORTED_40000baseCR4_Full,
 663                 ADVERTISED_40000baseCR4_Full,
 664                 SPEED_40000
 665                 },
 666         [MLX4_40GBASE_KR4] = {
 667                 SUPPORTED_40000baseKR4_Full,
 668                 ADVERTISED_40000baseKR4_Full,
 669                 SPEED_40000
 670                 },
 671         [MLX4_40GBASE_SR4] = {
 672                 SUPPORTED_40000baseSR4_Full,
 673                 ADVERTISED_40000baseSR4_Full,
 674                 SPEED_40000
 675                 },
 676
 677         [MLX4_56GBASE_KR4] = {
 678                 SUPPORTED_56000baseKR4_Full,
 679                 ADVERTISED_56000baseKR4_Full,
 680                 SPEED_56000
 681                 },
 682         [MLX4_56GBASE_CR4] = {
 683                 SUPPORTED_56000baseCR4_Full,
 684                 ADVERTISED_56000baseCR4_Full,
 685                 SPEED_56000
 686                 },
 687         [MLX4_56GBASE_SR4] = {
 688                 SUPPORTED_56000baseSR4_Full,
 689                 ADVERTISED_56000baseSR4_Full,
 690                 SPEED_56000
 691                 },
 692 };
 693
 694 static u32 ptys2ethtool_link_modes(u32 eth_proto, enum ethtool_report report)
 695 {
 696         int i;
 697         u32 link_modes = 0;
 698
 699         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 700                 if (eth_proto & MLX4_PROT_MASK(i))
 701                         link_modes |= ptys2ethtool_map[i][report];
 702         }
 703         return link_modes;
 704 }
 705
 706 static u32 ethtool2ptys_link_modes(u32 link_modes, enum ethtool_report report)
 707 {
 708         int i;
 709         u32 ptys_modes = 0;
 710
 711         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 712                 if (ptys2ethtool_map[i][report] & link_modes)
 713                         ptys_modes |= 1 << i;
 714         }
 715         return ptys_modes;
 716 }
 717
 718 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 719 static u32 speed2ptys_link_modes(u32 speed)
 720 {
 721         int i;
 722         u32 ptys_modes = 0;
 723
 724         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 725                 if (ptys2ethtool_map[i][SPEED] == speed)
 726                         ptys_modes |= 1 << i;
 727         }
 728         return ptys_modes;
 729 }
 730
 731 static int ethtool_get_ptys_settings(struct net_device *dev,
 732                                      struct ethtool_cmd *cmd)
 733 {
 734         struct mlx4_en_priv *priv = netdev_priv(dev);
 735         struct mlx4_ptys_reg ptys_reg;
 736         u32 eth_proto;
 737         int ret;
 738
 739         memset(&ptys_reg, 0, sizeof(ptys_reg));
 740         ptys_reg.local_port = priv->port;
 741         ptys_reg.proto_mask = MLX4_PTYS_EN;
 742         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 743                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 744         if (ret) {
 745                 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
 746                         ret);
 747                 return ret;
 748         }
 749         en_dbg(DRV, priv, "ptys_reg.proto_mask       %x\n",
 750                ptys_reg.proto_mask);
 751         en_dbg(DRV, priv, "ptys_reg.eth_proto_cap    %x\n",
 752                be32_to_cpu(ptys_reg.eth_proto_cap));
 753         en_dbg(DRV, priv, "ptys_reg.eth_proto_admin  %x\n",
 754                be32_to_cpu(ptys_reg.eth_proto_admin));
 755         en_dbg(DRV, priv, "ptys_reg.eth_proto_oper   %x\n",
 756                be32_to_cpu(ptys_reg.eth_proto_oper));
 757         en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
 758                be32_to_cpu(ptys_reg.eth_proto_lp_adv));
 759
 760         cmd->supported = 0;
 761         cmd->advertising = 0;
 762
 763         cmd->supported |= ptys_get_supported_port(&ptys_reg);
 764
 765         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 766         cmd->supported |= ptys2ethtool_link_modes(eth_proto, SUPPORTED);
 767
 768         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 769         cmd->advertising |= ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 770
 771         cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 772         cmd->advertising |= (priv->prof->tx_pause) ? ADVERTISED_Pause : 0;
 773
 774         cmd->advertising |= (priv->prof->tx_pause ^ priv->prof->rx_pause) ?
 775                 ADVERTISED_Asym_Pause : 0;
 776
 777         cmd->port = ptys_get_active_port(&ptys_reg);
 778         cmd->transceiver = (SUPPORTED_TP & cmd->supported) ?
 779                 XCVR_EXTERNAL : XCVR_INTERNAL;
 780
 781         if (mlx4_en_autoneg_get(dev)) {
 782                 cmd->supported |= SUPPORTED_Autoneg;
 783                 cmd->advertising |= ADVERTISED_Autoneg;
 784         }
 785
 786         cmd->autoneg = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 787                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 788
 789         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 790         cmd->lp_advertising = ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 791
 792         cmd->lp_advertising |= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 793                         ADVERTISED_Autoneg : 0;
 794
 795         cmd->phy_address = 0;
 796         cmd->mdio_support = 0;
 797         cmd->maxtxpkt = 0;
 798         cmd->maxrxpkt = 0;
 799         cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 800         cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 801
 802         return ret;
 803 }
 804
 805 static void ethtool_get_default_settings(struct net_device *dev,
 806                                          struct ethtool_cmd *cmd)
 807 {
 808         struct mlx4_en_priv *priv = netdev_priv(dev);
 809         int trans_type;
 810
 811         cmd->autoneg = AUTONEG_DISABLE;
 812         cmd->supported = SUPPORTED_10000baseT_Full;
 813         cmd->advertising = ADVERTISED_10000baseT_Full;
 814         trans_type = priv->port_state.transceiver;
 815
 816         if (trans_type > 0 && trans_type <= 0xC) {
 817                 cmd->port = PORT_FIBRE;
 818                 cmd->transceiver = XCVR_EXTERNAL;
 819                 cmd->supported |= SUPPORTED_FIBRE;
 820                 cmd->advertising |= ADVERTISED_FIBRE;
 821         } else if (trans_type == 0x80 || trans_type == 0) {
 822                 cmd->port = PORT_TP;
 823                 cmd->transceiver = XCVR_INTERNAL;
 824                 cmd->supported |= SUPPORTED_TP;
 825                 cmd->advertising |= ADVERTISED_TP;
 826         } else  {
 827                 cmd->port = -1;
 828                 cmd->transceiver = -1;
 829         }
 830 }
 831
 832 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 833 {
 834         struct mlx4_en_priv *priv = netdev_priv(dev);
 835         int ret = -EINVAL;
 836
 837         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 838                 return -ENOMEM;
 839
 840         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 841                priv->port_state.flags & MLX4_EN_PORT_ANC,
 842                priv->port_state.flags & MLX4_EN_PORT_ANE);
 843
 844         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 845                 ret = ethtool_get_ptys_settings(dev, cmd);
 846         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 847                 ethtool_get_default_settings(dev, cmd);
 848
 849         if (netif_carrier_ok(dev)) {
 850                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 851                 cmd->duplex = DUPLEX_FULL;
 852         } else {
 853                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 854                 cmd->duplex = DUPLEX_UNKNOWN;
 855         }
 856         return 0;
 857 }
 858
 859 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 860 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 861                                    __be32 proto_cap)
 862 {
 863         __be32 proto_admin = 0;
 864
 865         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 866                 proto_admin = proto_cap;
 867                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 868                         be32_to_cpu(proto_cap));
 869         } else {
 870                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 871
 872                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 873                 en_info(priv, "Setting Speed to %d\n", speed);
 874         }
 875         return proto_admin;
 876 }
 877
 878 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 879 {
 880         struct mlx4_en_priv *priv = netdev_priv(dev);
 881         struct mlx4_ptys_reg ptys_reg;
 882         __be32 proto_admin;
 883         int ret;
 884
 885         u32 ptys_adv = ethtool2ptys_link_modes(cmd->advertising, ADVERTISED);
 886         int speed = ethtool_cmd_speed(cmd);
 887
 888         en_dbg(DRV, priv, "Set Speed=%d adv=0x%x autoneg=%d duplex=%d\n",
 889                speed, cmd->advertising, cmd->autoneg, cmd->duplex);
 890
 891         if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 892             (cmd->duplex == DUPLEX_HALF))
 893                 return -EINVAL;
 894
 895         memset(&ptys_reg, 0, sizeof(ptys_reg));
 896         ptys_reg.local_port = priv->port;
 897         ptys_reg.proto_mask = MLX4_PTYS_EN;
 898         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 899                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 900         if (ret) {
 901                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 902                         ret);
 903                 return 0;
 904         }
 905
 906         proto_admin = cmd->autoneg == AUTONEG_ENABLE ?
 907                 cpu_to_be32(ptys_adv) :
 908                 speed_set_ptys_admin(priv, speed,
 909                                      ptys_reg.eth_proto_cap);
 910
 911         proto_admin &= ptys_reg.eth_proto_cap;
 912         if (!proto_admin) {
 913                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 914                 return -EINVAL; /* nothing to change due to bad input */
 915         }
 916
 917         if (proto_admin == ptys_reg.eth_proto_admin)
 918                 return 0; /* Nothing to change */
 919
 920         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 921                be32_to_cpu(proto_admin));
 922
 923         ptys_reg.eth_proto_admin = proto_admin;
 924         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 925                                    &ptys_reg);
 926         if (ret) {
 927                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 928                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 929                 return ret;
 930         }
 931
 932         mutex_lock(&priv->mdev->state_lock);
 933         if (priv->port_up) {
 934                 en_warn(priv, "Port link mode changed, restarting port...\n");
 935                 mlx4_en_stop_port(dev, 1);
 936                 if (mlx4_en_start_port(dev))
 937                         en_err(priv, "Failed restarting port %d\n", priv->port);
 938         }
 939         mutex_unlock(&priv->mdev->state_lock);
 940         return 0;
 941 }
 942
 943 static int mlx4_en_get_coalesce(struct net_device *dev,
 944                               struct ethtool_coalesce *coal)
 945 {
 946         struct mlx4_en_priv *priv = netdev_priv(dev);
 947
 948         coal->tx_coalesce_usecs = priv->tx_usecs;
 949         coal->tx_max_coalesced_frames = priv->tx_frames;
 950         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 951
 952         coal->rx_coalesce_usecs = priv->rx_usecs;
 953         coal->rx_max_coalesced_frames = priv->rx_frames;
 954
 955         coal->pkt_rate_low = priv->pkt_rate_low;
 956         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 957         coal->pkt_rate_high = priv->pkt_rate_high;
 958         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 959         coal->rate_sample_interval = priv->sample_interval;
 960         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 961
 962         return 0;
 963 }
 964
 965 static int mlx4_en_set_coalesce(struct net_device *dev,
 966                               struct ethtool_coalesce *coal)
 967 {
 968         struct mlx4_en_priv *priv = netdev_priv(dev);
 969
 970         if (!coal->tx_max_coalesced_frames_irq)
 971                 return -EINVAL;
 972
 973         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 974                            MLX4_EN_AUTO_CONF) ?
 975                                 MLX4_EN_RX_COAL_TARGET :
 976                                 coal->rx_max_coalesced_frames;
 977         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 978                           MLX4_EN_AUTO_CONF) ?
 979                                 MLX4_EN_RX_COAL_TIME :
 980                                 coal->rx_coalesce_usecs;
 981
 982         /* Setting TX coalescing parameters */
 983         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 984             coal->tx_max_coalesced_frames != priv->tx_frames) {
 985                 priv->tx_usecs = coal->tx_coalesce_usecs;
 986                 priv->tx_frames = coal->tx_max_coalesced_frames;
 987         }
 988
 989         /* Set adaptive coalescing params */
 990         priv->pkt_rate_low = coal->pkt_rate_low;
 991         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 992         priv->pkt_rate_high = coal->pkt_rate_high;
 993         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 994         priv->sample_interval = coal->rate_sample_interval;
 995         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 996         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
 997
 998         return mlx4_en_moderation_update(priv);
 999 }
1000
1001 static int mlx4_en_set_pauseparam(struct net_device *dev,
1002                                 struct ethtool_pauseparam *pause)
1003 {
1004         struct mlx4_en_priv *priv = netdev_priv(dev);
1005         struct mlx4_en_dev *mdev = priv->mdev;
1006         int err;
1007
1008         if (pause->autoneg)
1009                 return -EINVAL;
1010
1011         priv->prof->tx_pause = pause->tx_pause != 0;
1012         priv->prof->rx_pause = pause->rx_pause != 0;
1013         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1014                                     priv->rx_skb_size + ETH_FCS_LEN,
1015                                     priv->prof->tx_pause,
1016                                     priv->prof->tx_ppp,
1017                                     priv->prof->rx_pause,
1018                                     priv->prof->rx_ppp);
1019         if (err)
1020                 en_err(priv, "Failed setting pause params\n");
1021         else
1022                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1023                                                 priv->prof->rx_ppp,
1024                                                 priv->prof->rx_pause,
1025                                                 priv->prof->tx_ppp,
1026                                                 priv->prof->tx_pause);
1027
1028         return err;
1029 }
1030
1031 static void mlx4_en_get_pauseparam(struct net_device *dev,
1032                                  struct ethtool_pauseparam *pause)
1033 {
1034         struct mlx4_en_priv *priv = netdev_priv(dev);
1035
1036         pause->tx_pause = priv->prof->tx_pause;
1037         pause->rx_pause = priv->prof->rx_pause;
1038 }
1039
1040 static int mlx4_en_set_ringparam(struct net_device *dev,
1041                                  struct ethtool_ringparam *param)
1042 {
1043         struct mlx4_en_priv *priv = netdev_priv(dev);
1044         struct mlx4_en_dev *mdev = priv->mdev;
1045         u32 rx_size, tx_size;
1046         int port_up = 0;
1047         int err = 0;
1048
1049         if (param->rx_jumbo_pending || param->rx_mini_pending)
1050                 return -EINVAL;
1051
1052         rx_size = roundup_pow_of_two(param->rx_pending);
1053         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1054         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1055         tx_size = roundup_pow_of_two(param->tx_pending);
1056         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1057         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1058
1059         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1060                                         priv->rx_ring[0]->size) &&
1061             tx_size == priv->tx_ring[0]->size)
1062                 return 0;
1063
1064         mutex_lock(&mdev->state_lock);
1065         if (priv->port_up) {
1066                 port_up = 1;
1067                 mlx4_en_stop_port(dev, 1);
1068         }
1069
1070         mlx4_en_free_resources(priv);
1071
1072         priv->prof->tx_ring_size = tx_size;
1073         priv->prof->rx_ring_size = rx_size;
1074
1075         err = mlx4_en_alloc_resources(priv);
1076         if (err) {
1077                 en_err(priv, "Failed reallocating port resources\n");
1078                 goto out;
1079         }
1080         if (port_up) {
1081                 err = mlx4_en_start_port(dev);
1082                 if (err)
1083                         en_err(priv, "Failed starting port\n");
1084         }
1085
1086         err = mlx4_en_moderation_update(priv);
1087
1088 out:
1089         mutex_unlock(&mdev->state_lock);
1090         return err;
1091 }
1092
1093 static void mlx4_en_get_ringparam(struct net_device *dev,
1094                                   struct ethtool_ringparam *param)
1095 {
1096         struct mlx4_en_priv *priv = netdev_priv(dev);
1097
1098         memset(param, 0, sizeof(*param));
1099         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1100         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1101         param->rx_pending = priv->port_up ?
1102                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1103         param->tx_pending = priv->tx_ring[0]->size;
1104 }
1105
1106 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1107 {
1108         struct mlx4_en_priv *priv = netdev_priv(dev);
1109
1110         return priv->rx_ring_num;
1111 }
1112
1113 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1114 {
1115         return MLX4_EN_RSS_KEY_SIZE;
1116 }
1117
1118 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1119 {
1120         struct mlx4_en_priv *priv = netdev_priv(dev);
1121
1122         /* check if requested function is supported by the device */
1123         if (hfunc == ETH_RSS_HASH_TOP) {
1124                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1125                         return -EINVAL;
1126                 if (!(dev->features & NETIF_F_RXHASH))
1127                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1128                 return 0;
1129         } else if (hfunc == ETH_RSS_HASH_XOR) {
1130                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1131                         return -EINVAL;
1132                 if (dev->features & NETIF_F_RXHASH)
1133                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1134                 return 0;
1135         }
1136
1137         return -EINVAL;
1138 }
1139
1140 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1141                             u8 *hfunc)
1142 {
1143         struct mlx4_en_priv *priv = netdev_priv(dev);
1144         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
1145         int rss_rings;
1146         size_t n = priv->rx_ring_num;
1147         int err = 0;
1148
1149         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
1150         rss_rings = 1 << ilog2(rss_rings);
1151
1152         while (n--) {
1153                 if (!ring_index)
1154                         break;
1155                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
1156                         rss_map->base_qpn;
1157         }
1158         if (key)
1159                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1160         if (hfunc)
1161                 *hfunc = priv->rss_hash_fn;
1162         return err;
1163 }
1164
1165 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1166                             const u8 *key, const u8 hfunc)
1167 {
1168         struct mlx4_en_priv *priv = netdev_priv(dev);
1169         struct mlx4_en_dev *mdev = priv->mdev;
1170         int port_up = 0;
1171         int err = 0;
1172         int i;
1173         int rss_rings = 0;
1174
1175         /* Calculate RSS table size and make sure flows are spread evenly
1176          * between rings
1177          */
1178         for (i = 0; i < priv->rx_ring_num; i++) {
1179                 if (!ring_index)
1180                         continue;
1181                 if (i > 0 && !ring_index[i] && !rss_rings)
1182                         rss_rings = i;
1183
1184                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
1185                         return -EINVAL;
1186         }
1187
1188         if (!rss_rings)
1189                 rss_rings = priv->rx_ring_num;
1190
1191         /* RSS table size must be an order of 2 */
1192         if (!is_power_of_2(rss_rings))
1193                 return -EINVAL;
1194
1195         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1196                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1197                 if (err)
1198                         return err;
1199         }
1200
1201         mutex_lock(&mdev->state_lock);
1202         if (priv->port_up) {
1203                 port_up = 1;
1204                 mlx4_en_stop_port(dev, 1);
1205         }
1206
1207         if (ring_index)
1208                 priv->prof->rss_rings = rss_rings;
1209         if (key)
1210                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1211         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1212                 priv->rss_hash_fn = hfunc;
1213
1214         if (port_up) {
1215                 err = mlx4_en_start_port(dev);
1216                 if (err)
1217                         en_err(priv, "Failed starting port\n");
1218         }
1219
1220         mutex_unlock(&mdev->state_lock);
1221         return err;
1222 }
1223
1224 #define all_zeros_or_all_ones(field)            \
1225         ((field) == 0 || (field) == (__force typeof(field))-1)
1226
1227 static int mlx4_en_validate_flow(struct net_device *dev,
1228                                  struct ethtool_rxnfc *cmd)
1229 {
1230         struct ethtool_usrip4_spec *l3_mask;
1231         struct ethtool_tcpip4_spec *l4_mask;
1232         struct ethhdr *eth_mask;
1233
1234         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1235                 return -EINVAL;
1236
1237         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1238                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1239                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1240                         return -EINVAL;
1241         }
1242
1243         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1244         case TCP_V4_FLOW:
1245         case UDP_V4_FLOW:
1246                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1247                         return -EINVAL;
1248                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1249                 /* don't allow mask which isn't all 0 or 1 */
1250                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1251                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1252                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1253                     !all_zeros_or_all_ones(l4_mask->pdst))
1254                         return -EINVAL;
1255                 break;
1256         case IP_USER_FLOW:
1257                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1258                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1259                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1260                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1261                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1262                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1263                         return -EINVAL;
1264                 break;
1265         case ETHER_FLOW:
1266                 eth_mask = &cmd->fs.m_u.ether_spec;
1267                 /* source mac mask must not be set */
1268                 if (!is_zero_ether_addr(eth_mask->h_source))
1269                         return -EINVAL;
1270
1271                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1272                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1273                         return -EINVAL;
1274
1275                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1276                         return -EINVAL;
1277                 break;
1278         default:
1279                 return -EINVAL;
1280         }
1281
1282         if ((cmd->fs.flow_type & FLOW_EXT)) {
1283                 if (cmd->fs.m_ext.vlan_etype ||
1284                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1285                       0 ||
1286                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1287                       cpu_to_be16(VLAN_VID_MASK)))
1288                         return -EINVAL;
1289
1290                 if (cmd->fs.m_ext.vlan_tci) {
1291                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1292                                 return -EINVAL;
1293
1294                 }
1295         }
1296
1297         return 0;
1298 }
1299
1300 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1301                                         struct list_head *rule_list_h,
1302                                         struct mlx4_spec_list *spec_l2,
1303                                         unsigned char *mac)
1304 {
1305         int err = 0;
1306         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1307
1308         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1309         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1310         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1311
1312         if ((cmd->fs.flow_type & FLOW_EXT) &&
1313             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1314                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1315                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1316         }
1317
1318         list_add_tail(&spec_l2->list, rule_list_h);
1319
1320         return err;
1321 }
1322
1323 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1324                                                 struct ethtool_rxnfc *cmd,
1325                                                 struct list_head *rule_list_h,
1326                                                 struct mlx4_spec_list *spec_l2,
1327                                                 __be32 ipv4_dst)
1328 {
1329 #ifdef CONFIG_INET
1330         unsigned char mac[ETH_ALEN];
1331
1332         if (!ipv4_is_multicast(ipv4_dst)) {
1333                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1334                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1335                 else
1336                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1337         } else {
1338                 ip_eth_mc_map(ipv4_dst, mac);
1339         }
1340
1341         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1342 #else
1343         return -EINVAL;
1344 #endif
1345 }
1346
1347 static int add_ip_rule(struct mlx4_en_priv *priv,
1348                        struct ethtool_rxnfc *cmd,
1349                        struct list_head *list_h)
1350 {
1351         int err;
1352         struct mlx4_spec_list *spec_l2 = NULL;
1353         struct mlx4_spec_list *spec_l3 = NULL;
1354         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1355
1356         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1357         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1358         if (!spec_l2 || !spec_l3) {
1359                 err = -ENOMEM;
1360                 goto free_spec;
1361         }
1362
1363         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1364                                                    cmd->fs.h_u.
1365                                                    usr_ip4_spec.ip4dst);
1366         if (err)
1367                 goto free_spec;
1368         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1369         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1370         if (l3_mask->ip4src)
1371                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1372         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1373         if (l3_mask->ip4dst)
1374                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1375         list_add_tail(&spec_l3->list, list_h);
1376
1377         return 0;
1378
1379 free_spec:
1380         kfree(spec_l2);
1381         kfree(spec_l3);
1382         return err;
1383 }
1384
1385 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1386                              struct ethtool_rxnfc *cmd,
1387                              struct list_head *list_h, int proto)
1388 {
1389         int err;
1390         struct mlx4_spec_list *spec_l2 = NULL;
1391         struct mlx4_spec_list *spec_l3 = NULL;
1392         struct mlx4_spec_list *spec_l4 = NULL;
1393         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1394
1395         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1396         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1397         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1398         if (!spec_l2 || !spec_l3 || !spec_l4) {
1399                 err = -ENOMEM;
1400                 goto free_spec;
1401         }
1402
1403         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1404
1405         if (proto == TCP_V4_FLOW) {
1406                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1407                                                            spec_l2,
1408                                                            cmd->fs.h_u.
1409                                                            tcp_ip4_spec.ip4dst);
1410                 if (err)
1411                         goto free_spec;
1412                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1413                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1414                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1415                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1416                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1417         } else {
1418                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1419                                                            spec_l2,
1420                                                            cmd->fs.h_u.
1421                                                            udp_ip4_spec.ip4dst);
1422                 if (err)
1423                         goto free_spec;
1424                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1425                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1426                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1427                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1428                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1429         }
1430
1431         if (l4_mask->ip4src)
1432                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1433         if (l4_mask->ip4dst)
1434                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1435
1436         if (l4_mask->psrc)
1437                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1438         if (l4_mask->pdst)
1439                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1440
1441         list_add_tail(&spec_l3->list, list_h);
1442         list_add_tail(&spec_l4->list, list_h);
1443
1444         return 0;
1445
1446 free_spec:
1447         kfree(spec_l2);
1448         kfree(spec_l3);
1449         kfree(spec_l4);
1450         return err;
1451 }
1452
1453 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1454                                              struct ethtool_rxnfc *cmd,
1455                                              struct list_head *rule_list_h)
1456 {
1457         int err;
1458         struct ethhdr *eth_spec;
1459         struct mlx4_spec_list *spec_l2;
1460         struct mlx4_en_priv *priv = netdev_priv(dev);
1461
1462         err = mlx4_en_validate_flow(dev, cmd);
1463         if (err)
1464                 return err;
1465
1466         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1467         case ETHER_FLOW:
1468                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1469                 if (!spec_l2)
1470                         return -ENOMEM;
1471
1472                 eth_spec = &cmd->fs.h_u.ether_spec;
1473                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1474                                              &eth_spec->h_dest[0]);
1475                 spec_l2->eth.ether_type = eth_spec->h_proto;
1476                 if (eth_spec->h_proto)
1477                         spec_l2->eth.ether_type_enable = 1;
1478                 break;
1479         case IP_USER_FLOW:
1480                 err = add_ip_rule(priv, cmd, rule_list_h);
1481                 break;
1482         case TCP_V4_FLOW:
1483                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1484                 break;
1485         case UDP_V4_FLOW:
1486                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1487                 break;
1488         }
1489
1490         return err;
1491 }
1492
1493 static int mlx4_en_flow_replace(struct net_device *dev,
1494                                 struct ethtool_rxnfc *cmd)
1495 {
1496         int err;
1497         struct mlx4_en_priv *priv = netdev_priv(dev);
1498         struct ethtool_flow_id *loc_rule;
1499         struct mlx4_spec_list *spec, *tmp_spec;
1500         u32 qpn;
1501         u64 reg_id;
1502
1503         struct mlx4_net_trans_rule rule = {
1504                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1505                 .exclusive = 0,
1506                 .allow_loopback = 1,
1507                 .promisc_mode = MLX4_FS_REGULAR,
1508         };
1509
1510         rule.port = priv->port;
1511         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1512         INIT_LIST_HEAD(&rule.list);
1513
1514         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1515         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1516                 qpn = priv->drop_qp.qpn;
1517         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1518                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1519         } else {
1520                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1521                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1522                                 cmd->fs.ring_cookie);
1523                         return -EINVAL;
1524                 }
1525                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1526                 if (!qpn) {
1527                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1528                                 cmd->fs.ring_cookie);
1529                         return -EINVAL;
1530                 }
1531         }
1532         rule.qpn = qpn;
1533         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1534         if (err)
1535                 goto out_free_list;
1536
1537         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1538         if (loc_rule->id) {
1539                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1540                 if (err) {
1541                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1542                                cmd->fs.location, loc_rule->id);
1543                         goto out_free_list;
1544                 }
1545                 loc_rule->id = 0;
1546                 memset(&loc_rule->flow_spec, 0,
1547                        sizeof(struct ethtool_rx_flow_spec));
1548                 list_del(&loc_rule->list);
1549         }
1550         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1551         if (err) {
1552                 en_err(priv, "Fail to attach network rule at location %d\n",
1553                        cmd->fs.location);
1554                 goto out_free_list;
1555         }
1556         loc_rule->id = reg_id;
1557         memcpy(&loc_rule->flow_spec, &cmd->fs,
1558                sizeof(struct ethtool_rx_flow_spec));
1559         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1560
1561 out_free_list:
1562         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1563                 list_del(&spec->list);
1564                 kfree(spec);
1565         }
1566         return err;
1567 }
1568
1569 static int mlx4_en_flow_detach(struct net_device *dev,
1570                                struct ethtool_rxnfc *cmd)
1571 {
1572         int err = 0;
1573         struct ethtool_flow_id *rule;
1574         struct mlx4_en_priv *priv = netdev_priv(dev);
1575
1576         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1577                 return -EINVAL;
1578
1579         rule = &priv->ethtool_rules[cmd->fs.location];
1580         if (!rule->id) {
1581                 err =  -ENOENT;
1582                 goto out;
1583         }
1584
1585         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1586         if (err) {
1587                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1588                        cmd->fs.location, rule->id);
1589                 goto out;
1590         }
1591         rule->id = 0;
1592         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1593         list_del(&rule->list);
1594 out:
1595         return err;
1596
1597 }
1598
1599 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1600                             int loc)
1601 {
1602         int err = 0;
1603         struct ethtool_flow_id *rule;
1604         struct mlx4_en_priv *priv = netdev_priv(dev);
1605
1606         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1607                 return -EINVAL;
1608
1609         rule = &priv->ethtool_rules[loc];
1610         if (rule->id)
1611                 memcpy(&cmd->fs, &rule->flow_spec,
1612                        sizeof(struct ethtool_rx_flow_spec));
1613         else
1614                 err = -ENOENT;
1615
1616         return err;
1617 }
1618
1619 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1620 {
1621
1622         int i, res = 0;
1623         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1624                 if (priv->ethtool_rules[i].id)
1625                         res++;
1626         }
1627         return res;
1628
1629 }
1630
1631 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1632                              u32 *rule_locs)
1633 {
1634         struct mlx4_en_priv *priv = netdev_priv(dev);
1635         struct mlx4_en_dev *mdev = priv->mdev;
1636         int err = 0;
1637         int i = 0, priority = 0;
1638
1639         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1640              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1641              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1642             (mdev->dev->caps.steering_mode !=
1643              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1644                 return -EINVAL;
1645
1646         switch (cmd->cmd) {
1647         case ETHTOOL_GRXRINGS:
1648                 cmd->data = priv->rx_ring_num;
1649                 break;
1650         case ETHTOOL_GRXCLSRLCNT:
1651                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1652                 break;
1653         case ETHTOOL_GRXCLSRULE:
1654                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1655                 break;
1656         case ETHTOOL_GRXCLSRLALL:
1657                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1658                         err = mlx4_en_get_flow(dev, cmd, i);
1659                         if (!err)
1660                                 rule_locs[priority++] = i;
1661                         i++;
1662                 }
1663                 err = 0;
1664                 break;
1665         default:
1666                 err = -EOPNOTSUPP;
1667                 break;
1668         }
1669
1670         return err;
1671 }
1672
1673 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1674 {
1675         int err = 0;
1676         struct mlx4_en_priv *priv = netdev_priv(dev);
1677         struct mlx4_en_dev *mdev = priv->mdev;
1678
1679         if (mdev->dev->caps.steering_mode !=
1680             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1681                 return -EINVAL;
1682
1683         switch (cmd->cmd) {
1684         case ETHTOOL_SRXCLSRLINS:
1685                 err = mlx4_en_flow_replace(dev, cmd);
1686                 break;
1687         case ETHTOOL_SRXCLSRLDEL:
1688                 err = mlx4_en_flow_detach(dev, cmd);
1689                 break;
1690         default:
1691                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1692                 return -EINVAL;
1693         }
1694
1695         return err;
1696 }
1697
1698 static void mlx4_en_get_channels(struct net_device *dev,
1699                                  struct ethtool_channels *channel)
1700 {
1701         struct mlx4_en_priv *priv = netdev_priv(dev);
1702
1703         memset(channel, 0, sizeof(*channel));
1704
1705         channel->max_rx = MAX_RX_RINGS;
1706         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1707
1708         channel->rx_count = priv->rx_ring_num;
1709         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1710 }
1711
1712 static int mlx4_en_set_channels(struct net_device *dev,
1713                                 struct ethtool_channels *channel)
1714 {
1715         struct mlx4_en_priv *priv = netdev_priv(dev);
1716         struct mlx4_en_dev *mdev = priv->mdev;
1717         int port_up = 0;
1718         int err = 0;
1719
1720         if (channel->other_count || channel->combined_count ||
1721             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1722             channel->rx_count > MAX_RX_RINGS ||
1723             !channel->tx_count || !channel->rx_count)
1724                 return -EINVAL;
1725
1726         mutex_lock(&mdev->state_lock);
1727         if (priv->port_up) {
1728                 port_up = 1;
1729                 mlx4_en_stop_port(dev, 1);
1730         }
1731
1732         mlx4_en_free_resources(priv);
1733
1734         priv->num_tx_rings_p_up = channel->tx_count;
1735         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1736         priv->rx_ring_num = channel->rx_count;
1737
1738         err = mlx4_en_alloc_resources(priv);
1739         if (err) {
1740                 en_err(priv, "Failed reallocating port resources\n");
1741                 goto out;
1742         }
1743
1744         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1745         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1746
1747         if (dev->num_tc)
1748                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1749
1750         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1751         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1752
1753         if (port_up) {
1754                 err = mlx4_en_start_port(dev);
1755                 if (err)
1756                         en_err(priv, "Failed starting port\n");
1757         }
1758
1759         err = mlx4_en_moderation_update(priv);
1760
1761 out:
1762         mutex_unlock(&mdev->state_lock);
1763         return err;
1764 }
1765
1766 static int mlx4_en_get_ts_info(struct net_device *dev,
1767                                struct ethtool_ts_info *info)
1768 {
1769         struct mlx4_en_priv *priv = netdev_priv(dev);
1770         struct mlx4_en_dev *mdev = priv->mdev;
1771         int ret;
1772
1773         ret = ethtool_op_get_ts_info(dev, info);
1774         if (ret)
1775                 return ret;
1776
1777         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1778                 info->so_timestamping |=
1779                         SOF_TIMESTAMPING_TX_HARDWARE |
1780                         SOF_TIMESTAMPING_RX_HARDWARE |
1781                         SOF_TIMESTAMPING_RAW_HARDWARE;
1782
1783                 info->tx_types =
1784                         (1 << HWTSTAMP_TX_OFF) |
1785                         (1 << HWTSTAMP_TX_ON);
1786
1787                 info->rx_filters =
1788                         (1 << HWTSTAMP_FILTER_NONE) |
1789                         (1 << HWTSTAMP_FILTER_ALL);
1790
1791                 if (mdev->ptp_clock)
1792                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1793         }
1794
1795         return ret;
1796 }
1797
1798 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1799 {
1800         struct mlx4_en_priv *priv = netdev_priv(dev);
1801         struct mlx4_en_dev *mdev = priv->mdev;
1802         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1803         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1804         bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1805         bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1806         int i;
1807         int ret = 0;
1808
1809         if (bf_enabled_new != bf_enabled_old) {
1810                 if (bf_enabled_new) {
1811                         bool bf_supported = true;
1812
1813                         for (i = 0; i < priv->tx_ring_num; i++)
1814                                 bf_supported &= priv->tx_ring[i]->bf_alloced;
1815
1816                         if (!bf_supported) {
1817                                 en_err(priv, "BlueFlame is not supported\n");
1818                                 return -EINVAL;
1819                         }
1820
1821                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1822                 } else {
1823                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1824                 }
1825
1826                 for (i = 0; i < priv->tx_ring_num; i++)
1827                         priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1828
1829                 en_info(priv, "BlueFlame %s\n",
1830                         bf_enabled_new ?  "Enabled" : "Disabled");
1831         }
1832
1833         if (phv_enabled_new != phv_enabled_old) {
1834                 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1835                 if (ret)
1836                         return ret;
1837                 else if (phv_enabled_new)
1838                         priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1839                 else
1840                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1841                 en_info(priv, "PHV bit %s\n",
1842                         phv_enabled_new ?  "Enabled" : "Disabled");
1843         }
1844         return 0;
1845 }
1846
1847 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1848 {
1849         struct mlx4_en_priv *priv = netdev_priv(dev);
1850
1851         return priv->pflags;
1852 }
1853
1854 static int mlx4_en_get_tunable(struct net_device *dev,
1855                                const struct ethtool_tunable *tuna,
1856                                void *data)
1857 {
1858         const struct mlx4_en_priv *priv = netdev_priv(dev);
1859         int ret = 0;
1860
1861         switch (tuna->id) {
1862         case ETHTOOL_TX_COPYBREAK:
1863                 *(u32 *)data = priv->prof->inline_thold;
1864                 break;
1865         default:
1866                 ret = -EINVAL;
1867                 break;
1868         }
1869
1870         return ret;
1871 }
1872
1873 static int mlx4_en_set_tunable(struct net_device *dev,
1874                                const struct ethtool_tunable *tuna,
1875                                const void *data)
1876 {
1877         struct mlx4_en_priv *priv = netdev_priv(dev);
1878         int val, ret = 0;
1879
1880         switch (tuna->id) {
1881         case ETHTOOL_TX_COPYBREAK:
1882                 val = *(u32 *)data;
1883                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1884                         ret = -EINVAL;
1885                 else
1886                         priv->prof->inline_thold = val;
1887                 break;
1888         default:
1889                 ret = -EINVAL;
1890                 break;
1891         }
1892
1893         return ret;
1894 }
1895
1896 static int mlx4_en_get_module_info(struct net_device *dev,
1897                                    struct ethtool_modinfo *modinfo)
1898 {
1899         struct mlx4_en_priv *priv = netdev_priv(dev);
1900         struct mlx4_en_dev *mdev = priv->mdev;
1901         int ret;
1902         u8 data[4];
1903
1904         /* Read first 2 bytes to get Module & REV ID */
1905         ret = mlx4_get_module_info(mdev->dev, priv->port,
1906                                    0/*offset*/, 2/*size*/, data);
1907         if (ret < 2)
1908                 return -EIO;
1909
1910         switch (data[0] /* identifier */) {
1911         case MLX4_MODULE_ID_QSFP:
1912                 modinfo->type = ETH_MODULE_SFF_8436;
1913                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1914                 break;
1915         case MLX4_MODULE_ID_QSFP_PLUS:
1916                 if (data[1] >= 0x3) { /* revision id */
1917                         modinfo->type = ETH_MODULE_SFF_8636;
1918                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1919                 } else {
1920                         modinfo->type = ETH_MODULE_SFF_8436;
1921                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1922                 }
1923                 break;
1924         case MLX4_MODULE_ID_QSFP28:
1925                 modinfo->type = ETH_MODULE_SFF_8636;
1926                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1927                 break;
1928         case MLX4_MODULE_ID_SFP:
1929                 modinfo->type = ETH_MODULE_SFF_8472;
1930                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1931                 break;
1932         default:
1933                 return -ENOSYS;
1934         }
1935
1936         return 0;
1937 }
1938
1939 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1940                                      struct ethtool_eeprom *ee,
1941                                      u8 *data)
1942 {
1943         struct mlx4_en_priv *priv = netdev_priv(dev);
1944         struct mlx4_en_dev *mdev = priv->mdev;
1945         int offset = ee->offset;
1946         int i = 0, ret;
1947
1948         if (ee->len == 0)
1949                 return -EINVAL;
1950
1951         memset(data, 0, ee->len);
1952
1953         while (i < ee->len) {
1954                 en_dbg(DRV, priv,
1955                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1956                        i, offset, ee->len - i);
1957
1958                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1959                                            offset, ee->len - i, data + i);
1960
1961                 if (!ret) /* Done reading */
1962                         return 0;
1963
1964                 if (ret < 0) {
1965                         en_err(priv,
1966                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1967                                i, offset, ee->len - i, ret);
1968                         return 0;
1969                 }
1970
1971                 i += ret;
1972                 offset += ret;
1973         }
1974         return 0;
1975 }
1976
1977 static int mlx4_en_set_phys_id(struct net_device *dev,
1978                                enum ethtool_phys_id_state state)
1979 {
1980         int err;
1981         u16 beacon_duration;
1982         struct mlx4_en_priv *priv = netdev_priv(dev);
1983         struct mlx4_en_dev *mdev = priv->mdev;
1984
1985         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
1986                 return -EOPNOTSUPP;
1987
1988         switch (state) {
1989         case ETHTOOL_ID_ACTIVE:
1990                 beacon_duration = PORT_BEACON_MAX_LIMIT;
1991                 break;
1992         case ETHTOOL_ID_INACTIVE:
1993                 beacon_duration = 0;
1994                 break;
1995         default:
1996                 return -EOPNOTSUPP;
1997         }
1998
1999         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
2000         return err;
2001 }
2002
2003 const struct ethtool_ops mlx4_en_ethtool_ops = {
2004         .get_drvinfo = mlx4_en_get_drvinfo,
2005         .get_settings = mlx4_en_get_settings,
2006         .set_settings = mlx4_en_set_settings,
2007         .get_link = ethtool_op_get_link,
2008         .get_strings = mlx4_en_get_strings,
2009         .get_sset_count = mlx4_en_get_sset_count,
2010         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2011         .self_test = mlx4_en_self_test,
2012         .set_phys_id = mlx4_en_set_phys_id,
2013         .get_wol = mlx4_en_get_wol,
2014         .set_wol = mlx4_en_set_wol,
2015         .get_msglevel = mlx4_en_get_msglevel,
2016         .set_msglevel = mlx4_en_set_msglevel,
2017         .get_coalesce = mlx4_en_get_coalesce,
2018         .set_coalesce = mlx4_en_set_coalesce,
2019         .get_pauseparam = mlx4_en_get_pauseparam,
2020         .set_pauseparam = mlx4_en_set_pauseparam,
2021         .get_ringparam = mlx4_en_get_ringparam,
2022         .set_ringparam = mlx4_en_set_ringparam,
2023         .get_rxnfc = mlx4_en_get_rxnfc,
2024         .set_rxnfc = mlx4_en_set_rxnfc,
2025         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2026         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2027         .get_rxfh = mlx4_en_get_rxfh,
2028         .set_rxfh = mlx4_en_set_rxfh,
2029         .get_channels = mlx4_en_get_channels,
2030         .set_channels = mlx4_en_set_channels,
2031         .get_ts_info = mlx4_en_get_ts_info,
2032         .set_priv_flags = mlx4_en_set_priv_flags,
2033         .get_priv_flags = mlx4_en_get_priv_flags,
2034         .get_tunable            = mlx4_en_get_tunable,
2035         .set_tunable            = mlx4_en_set_tunable,
2036         .get_module_info = mlx4_en_get_module_info,
2037         .get_module_eeprom = mlx4_en_get_module_eeprom
2038 };
2039
2040
2041
2042
2043