sys/ofed/drivers/net/mlx4/en_ethtool.c

   1 /*
   2  * Copyright (c) 2007, 2014 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/in.h>
  39 #include <net/ip.h>
  40 #include <linux/bitmap.h>
  41
  42 #include "mlx4_en.h"
  43 #include "en_port.h"
  44
  45 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
  46
  47 union mlx4_ethtool_flow_union {
  48         struct ethtool_tcpip4_spec              tcp_ip4_spec;
  49         struct ethtool_tcpip4_spec              udp_ip4_spec;
  50         struct ethtool_tcpip4_spec              sctp_ip4_spec;
  51         struct ethtool_ah_espip4_spec           ah_ip4_spec;
  52         struct ethtool_ah_espip4_spec           esp_ip4_spec;
  53         struct ethtool_usrip4_spec              usr_ip4_spec;
  54         struct ethhdr                           ether_spec;
  55         __u8                                    hdata[52];
  56 };
  57
  58 struct mlx4_ethtool_flow_ext {
  59         __u8            padding[2];
  60         unsigned char   h_dest[ETH_ALEN];
  61         __be16          vlan_etype;
  62         __be16          vlan_tci;
  63         __be32          data[2];
  64 };
  65
  66 struct mlx4_ethtool_rx_flow_spec {
  67         __u32           flow_type;
  68         union mlx4_ethtool_flow_union h_u;
  69         struct mlx4_ethtool_flow_ext h_ext;
  70         union mlx4_ethtool_flow_union m_u;
  71         struct mlx4_ethtool_flow_ext m_ext;
  72         __u64           ring_cookie;
  73         __u32           location;
  74 };
  75
  76 struct mlx4_ethtool_rxnfc {
  77         __u32                           cmd;
  78         __u32                           flow_type;
  79         __u64                           data;
  80         struct mlx4_ethtool_rx_flow_spec        fs;
  81         __u32                           rule_cnt;
  82         __u32                           rule_locs[0];
  83 };
  84
  85 #ifndef FLOW_MAC_EXT
  86 #define FLOW_MAC_EXT    0x40000000
  87 #endif
  88
  89 static void
  90 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  91 {
  92         struct mlx4_en_priv *priv = netdev_priv(dev);
  93         struct mlx4_en_dev *mdev = priv->mdev;
  94
  95         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  96         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  97                 sizeof(drvinfo->version));
  98         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  99                 "%d.%d.%d",
 100                 (u16) (mdev->dev->caps.fw_ver >> 32),
 101                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
 102                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
 103         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->pdev),
 104                 sizeof(drvinfo->bus_info));
 105         drvinfo->n_stats = 0;
 106         drvinfo->regdump_len = 0;
 107         drvinfo->eedump_len = 0;
 108 }
 109
 110 static const char main_strings[][ETH_GSTRING_LEN] = {
 111         /* packet statistics */
 112         "rx_packets",
 113         "rx_bytes",
 114         "rx_multicast_packets",
 115         "rx_broadcast_packets",
 116         "rx_errors",
 117         "rx_dropped",
 118         "rx_length_errors",
 119         "rx_over_errors",
 120         "rx_crc_errors",
 121         "rx_jabbers",
 122         "rx_in_range_length_error",
 123         "rx_out_range_length_error",
 124         "rx_lt_64_bytes_packets",
 125         "rx_127_bytes_packets",
 126         "rx_255_bytes_packets",
 127         "rx_511_bytes_packets",
 128         "rx_1023_bytes_packets",
 129         "rx_1518_bytes_packets",
 130         "rx_1522_bytes_packets",
 131         "rx_1548_bytes_packets",
 132         "rx_gt_1548_bytes_packets",
 133         "tx_packets",
 134         "tx_bytes",
 135         "tx_multicast_packets",
 136         "tx_broadcast_packets",
 137         "tx_errors",
 138         "tx_dropped",
 139         "tx_lt_64_bytes_packets",
 140         "tx_127_bytes_packets",
 141         "tx_255_bytes_packets",
 142         "tx_511_bytes_packets",
 143         "tx_1023_bytes_packets",
 144         "tx_1518_bytes_packets",
 145         "tx_1522_bytes_packets",
 146         "tx_1548_bytes_packets",
 147         "tx_gt_1548_bytes_packets",
 148         "rx_prio_0_packets", "rx_prio_0_bytes",
 149         "rx_prio_1_packets", "rx_prio_1_bytes",
 150         "rx_prio_2_packets", "rx_prio_2_bytes",
 151         "rx_prio_3_packets", "rx_prio_3_bytes",
 152         "rx_prio_4_packets", "rx_prio_4_bytes",
 153         "rx_prio_5_packets", "rx_prio_5_bytes",
 154         "rx_prio_6_packets", "rx_prio_6_bytes",
 155         "rx_prio_7_packets", "rx_prio_7_bytes",
 156         "rx_novlan_packets", "rx_novlan_bytes",
 157         "tx_prio_0_packets", "tx_prio_0_bytes",
 158         "tx_prio_1_packets", "tx_prio_1_bytes",
 159         "tx_prio_2_packets", "tx_prio_2_bytes",
 160         "tx_prio_3_packets", "tx_prio_3_bytes",
 161         "tx_prio_4_packets", "tx_prio_4_bytes",
 162         "tx_prio_5_packets", "tx_prio_5_bytes",
 163         "tx_prio_6_packets", "tx_prio_6_bytes",
 164         "tx_prio_7_packets", "tx_prio_7_bytes",
 165         "tx_novlan_packets", "tx_novlan_bytes",
 166
 167         /* flow control statistics */
 168         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 169         "rx_pause_transition_prio_0", "tx_pause_prio_0",
 170         "tx_pause_duration_prio_0", "tx_pause_transition_prio_0",
 171         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 172         "rx_pause_transition_prio_1", "tx_pause_prio_1",
 173         "tx_pause_duration_prio_1", "tx_pause_transition_prio_1",
 174         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 175         "rx_pause_transition_prio_2", "tx_pause_prio_2",
 176         "tx_pause_duration_prio_2", "tx_pause_transition_prio_2",
 177         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 178         "rx_pause_transition_prio_3", "tx_pause_prio_3",
 179         "tx_pause_duration_prio_3", "tx_pause_transition_prio_3",
 180         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 181         "rx_pause_transition_prio_4", "tx_pause_prio_4",
 182         "tx_pause_duration_prio_4", "tx_pause_transition_prio_4",
 183         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 184         "rx_pause_transition_prio_5", "tx_pause_prio_5",
 185         "tx_pause_duration_prio_5", "tx_pause_transition_prio_5",
 186         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 187         "rx_pause_transition_prio_6", "tx_pause_prio_6",
 188         "tx_pause_duration_prio_6", "tx_pause_transition_prio_6",
 189         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 190         "rx_pause_transition_prio_7", "tx_pause_prio_7",
 191         "tx_pause_duration_prio_7", "tx_pause_transition_prio_7",
 192
 193         /* VF statistics */
 194         "rx_packets",
 195         "rx_bytes",
 196         "rx_multicast_packets",
 197         "rx_broadcast_packets",
 198         "rx_errors",
 199         "rx_dropped",
 200         "tx_packets",
 201         "tx_bytes",
 202         "tx_multicast_packets",
 203         "tx_broadcast_packets",
 204         "tx_errors",
 205
 206         /* VPort statistics */
 207         "vport_rx_unicast_packets",
 208         "vport_rx_unicast_bytes",
 209         "vport_rx_multicast_packets",
 210         "vport_rx_multicast_bytes",
 211         "vport_rx_broadcast_packets",
 212         "vport_rx_broadcast_bytes",
 213         "vport_rx_dropped",
 214         "vport_rx_errors",
 215         "vport_tx_unicast_packets",
 216         "vport_tx_unicast_bytes",
 217         "vport_tx_multicast_packets",
 218         "vport_tx_multicast_bytes",
 219         "vport_tx_broadcast_packets",
 220         "vport_tx_broadcast_bytes",
 221         "vport_tx_errors",
 222
 223         /* port statistics */
 224         "tx_tso_packets",
 225         "tx_queue_stopped", "tx_wake_queue", "tx_timeout", "rx_alloc_failed",
 226         "rx_csum_good", "rx_csum_none", "tx_chksum_offload",
 227 };
 228
 229 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 230         "Interrupt Test",
 231         "Link Test",
 232         "Speed Test",
 233         "Register Test",
 234         "Loopback Test",
 235 };
 236
 237 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 238 {
 239         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 240 }
 241
 242 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 243 {
 244         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 245 }
 246
 247 static void mlx4_en_get_wol(struct net_device *netdev,
 248                             struct ethtool_wolinfo *wol)
 249 {
 250         struct mlx4_en_priv *priv = netdev_priv(netdev);
 251         int err = 0;
 252         u64 config = 0;
 253         u64 mask;
 254
 255         if ((priv->port < 1) || (priv->port > 2)) {
 256                 en_err(priv, "Failed to get WoL information\n");
 257                 return;
 258         }
 259
 260         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 261                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 262
 263         if (!(priv->mdev->dev->caps.flags & mask)) {
 264                 wol->supported = 0;
 265                 wol->wolopts = 0;
 266                 return;
 267         }
 268
 269         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 270         if (err) {
 271                 en_err(priv, "Failed to get WoL information\n");
 272                 return;
 273         }
 274
 275         if (config & MLX4_EN_WOL_MAGIC)
 276                 wol->supported = WAKE_MAGIC;
 277         else
 278                 wol->supported = 0;
 279
 280         if (config & MLX4_EN_WOL_ENABLED)
 281                 wol->wolopts = WAKE_MAGIC;
 282         else
 283                 wol->wolopts = 0;
 284 }
 285
 286 static int mlx4_en_set_wol(struct net_device *netdev,
 287                             struct ethtool_wolinfo *wol)
 288 {
 289         struct mlx4_en_priv *priv = netdev_priv(netdev);
 290         u64 config = 0;
 291         int err = 0;
 292         u64 mask;
 293
 294         if ((priv->port < 1) || (priv->port > 2))
 295                 return -EOPNOTSUPP;
 296
 297         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 298                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 299
 300         if (!(priv->mdev->dev->caps.flags & mask))
 301                 return -EOPNOTSUPP;
 302
 303         if (wol->supported & ~WAKE_MAGIC)
 304                 return -EINVAL;
 305
 306         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 307         if (err) {
 308                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 309                 return err;
 310         }
 311
 312         if (wol->wolopts & WAKE_MAGIC) {
 313                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 314                                 MLX4_EN_WOL_MAGIC;
 315         } else {
 316                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 317                 config |= MLX4_EN_WOL_DO_MODIFY;
 318         }
 319
 320         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 321         if (err)
 322                 en_err(priv, "Failed to set WoL information\n");
 323
 324         return err;
 325 }
 326
 327 struct bitmap_sim_iterator {
 328         bool advance_array;
 329         unsigned long *stats_bitmap;
 330         unsigned int count;
 331         unsigned int j;
 332 };
 333
 334 static inline void bitmap_sim_iterator_init(struct bitmap_sim_iterator *h,
 335                                             unsigned long *stats_bitmap,
 336                                             int count)
 337 {
 338         h->j = 0;
 339         h->advance_array = !bitmap_empty(stats_bitmap, count);
 340         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 341                 : count;
 342         h->stats_bitmap = stats_bitmap;
 343 }
 344
 345 static inline int bitmap_sim_iterator_test(struct bitmap_sim_iterator *h)
 346 {
 347         return !h->advance_array ? 1 : test_bit(h->j, h->stats_bitmap);
 348 }
 349
 350 static inline int bitmap_sim_iterator_inc(struct bitmap_sim_iterator *h)
 351 {
 352         return h->j++;
 353 }
 354
 355 static inline unsigned int bitmap_sim_iterator_count(
 356                 struct bitmap_sim_iterator *h)
 357 {
 358         return h->count;
 359 }
 360
 361 int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 362 {
 363         struct mlx4_en_priv *priv = netdev_priv(dev);
 364         struct bitmap_sim_iterator it;
 365
 366         int num_of_stats = NUM_ALL_STATS -
 367                 ((priv->mdev->dev->caps.flags2 &
 368                  MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
 369
 370         bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
 371
 372         switch (sset) {
 373         case ETH_SS_STATS:
 374                 return bitmap_sim_iterator_count(&it) +
 375                         (priv->tx_ring_num * 2) +
 376 #ifdef LL_EXTENDED_STATS
 377                         (priv->rx_ring_num * 5);
 378 #else
 379                         (priv->rx_ring_num * 2);
 380 #endif
 381         case ETH_SS_TEST:
 382                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 383                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 384         default:
 385                 return -EOPNOTSUPP;
 386         }
 387 }
 388
 389 void mlx4_en_get_ethtool_stats(struct net_device *dev,
 390                 struct ethtool_stats *stats, u64 *data)
 391 {
 392         struct mlx4_en_priv *priv = netdev_priv(dev);
 393         int index = 0;
 394         int i;
 395         struct bitmap_sim_iterator it;
 396
 397         int num_of_stats = NUM_ALL_STATS -
 398                 ((priv->mdev->dev->caps.flags2 &
 399                  MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
 400
 401         bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
 402
 403         if (!data || !priv->port_up)
 404                 return;
 405
 406         spin_lock_bh(&priv->stats_lock);
 407
 408         for (i = 0; i < NUM_PKT_STATS; i++,
 409                         bitmap_sim_iterator_inc(&it))
 410                 if (bitmap_sim_iterator_test(&it))
 411                         data[index++] =
 412                                 ((unsigned long *)&priv->pkstats)[i];
 413         for (i = 0; i < NUM_FLOW_STATS; i++,
 414                         bitmap_sim_iterator_inc(&it))
 415                 if (priv->mdev->dev->caps.flags2 &
 416                     MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
 417                         if (bitmap_sim_iterator_test(&it))
 418                                 data[index++] =
 419                                         ((u64 *)&priv->flowstats)[i];
 420         for (i = 0; i < NUM_VF_STATS; i++,
 421                         bitmap_sim_iterator_inc(&it))
 422                 if (bitmap_sim_iterator_test(&it))
 423                         data[index++] =
 424                                 ((unsigned long *)&priv->vf_stats)[i];
 425         for (i = 0; i < NUM_VPORT_STATS; i++,
 426                         bitmap_sim_iterator_inc(&it))
 427                 if (bitmap_sim_iterator_test(&it))
 428                         data[index++] =
 429                                 ((unsigned long *)&priv->vport_stats)[i];
 430         for (i = 0; i < NUM_PORT_STATS; i++,
 431                         bitmap_sim_iterator_inc(&it))
 432                 if (bitmap_sim_iterator_test(&it))
 433                         data[index++] =
 434                                 ((unsigned long *)&priv->port_stats)[i];
 435
 436         for (i = 0; i < priv->tx_ring_num; i++) {
 437                 data[index++] = priv->tx_ring[i]->packets;
 438                 data[index++] = priv->tx_ring[i]->bytes;
 439         }
 440         for (i = 0; i < priv->rx_ring_num; i++) {
 441                 data[index++] = priv->rx_ring[i]->packets;
 442                 data[index++] = priv->rx_ring[i]->bytes;
 443 #ifdef LL_EXTENDED_STATS
 444                 data[index++] = priv->rx_ring[i]->yields;
 445                 data[index++] = priv->rx_ring[i]->misses;
 446                 data[index++] = priv->rx_ring[i]->cleaned;
 447 #endif
 448         }
 449         spin_unlock_bh(&priv->stats_lock);
 450
 451 }
 452
 453 void mlx4_en_restore_ethtool_stats(struct mlx4_en_priv *priv, u64 *data)
 454 {
 455         int index = 0;
 456         int i;
 457         struct bitmap_sim_iterator it;
 458
 459         int num_of_stats = NUM_ALL_STATS -
 460                 ((priv->mdev->dev->caps.flags2 &
 461                  MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
 462
 463         bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
 464
 465         if (!data || !priv->port_up)
 466                 return;
 467
 468         spin_lock_bh(&priv->stats_lock);
 469
 470         for (i = 0; i < NUM_PKT_STATS; i++,
 471               bitmap_sim_iterator_inc(&it))
 472                         if (bitmap_sim_iterator_test(&it))
 473                                 ((unsigned long *)&priv->pkstats)[i] =
 474                                         data[index++];
 475         for (i = 0; i < NUM_FLOW_STATS; i++,
 476               bitmap_sim_iterator_inc(&it))
 477                 if (priv->mdev->dev->caps.flags2 &
 478                     MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
 479                         if (bitmap_sim_iterator_test(&it))
 480                                 ((u64 *)&priv->flowstats)[i] =
 481                                          data[index++];
 482         for (i = 0; i < NUM_VF_STATS; i++,
 483               bitmap_sim_iterator_inc(&it))
 484                         if (bitmap_sim_iterator_test(&it))
 485                                 ((unsigned long *)&priv->vf_stats)[i] =
 486                                         data[index++];
 487         for (i = 0; i < NUM_VPORT_STATS; i++,
 488               bitmap_sim_iterator_inc(&it))
 489                         if (bitmap_sim_iterator_test(&it))
 490                                 ((unsigned long *)&priv->vport_stats)[i] =
 491                                         data[index++];
 492         for (i = 0; i < NUM_PORT_STATS; i++,
 493               bitmap_sim_iterator_inc(&it))
 494                         if (bitmap_sim_iterator_test(&it))
 495                                 ((unsigned long *)&priv->port_stats)[i] =
 496                                         data[index++];
 497
 498         for (i = 0; i < priv->tx_ring_num; i++) {
 499                 priv->tx_ring[i]->packets = data[index++];
 500                 priv->tx_ring[i]->bytes = data[index++];
 501         }
 502         for (i = 0; i < priv->rx_ring_num; i++) {
 503                 priv->rx_ring[i]->packets = data[index++];
 504                 priv->rx_ring[i]->bytes = data[index++];
 505         }
 506         spin_unlock_bh(&priv->stats_lock);
 507 }
 508
 509 static void mlx4_en_self_test(struct net_device *dev,
 510                               struct ethtool_test *etest, u64 *buf)
 511 {
 512         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 513 }
 514
 515 static void mlx4_en_get_strings(struct net_device *dev,
 516                                 uint32_t stringset, uint8_t *data)
 517 {
 518         struct mlx4_en_priv *priv = netdev_priv(dev);
 519         int index = 0;
 520         int i, k;
 521         struct bitmap_sim_iterator it;
 522
 523         int num_of_stats = NUM_ALL_STATS -
 524                 ((priv->mdev->dev->caps.flags2 &
 525                  MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN) ? 0 : NUM_FLOW_STATS);
 526
 527         bitmap_sim_iterator_init(&it, priv->stats_bitmap, num_of_stats);
 528
 529         switch (stringset) {
 530         case ETH_SS_TEST:
 531                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 532                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 533                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 534                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 535                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 536                 break;
 537
 538         case ETH_SS_STATS:
 539                 /* Add main counters */
 540                 for (i = 0; i < NUM_PKT_STATS; i++,
 541                      bitmap_sim_iterator_inc(&it))
 542                         if (bitmap_sim_iterator_test(&it))
 543                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 544                                        main_strings[i]);
 545
 546                 for (k = 0; k < NUM_FLOW_STATS; k++,
 547                      bitmap_sim_iterator_inc(&it))
 548                         if (priv->mdev->dev->caps.flags2 &
 549                             MLX4_DEV_CAP_FLAG2_FLOWSTATS_EN)
 550                                 if (bitmap_sim_iterator_test(&it))
 551                                         strcpy(data + (index++) *
 552                                                ETH_GSTRING_LEN,
 553                                                 main_strings[i + k]);
 554
 555                 for (; (i + k) < num_of_stats; i++,
 556                      bitmap_sim_iterator_inc(&it))
 557                         if (bitmap_sim_iterator_test(&it))
 558                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 559                                        main_strings[i + k]);
 560
 561                 for (i = 0; i < priv->tx_ring_num; i++) {
 562                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 563                                 "tx%d_packets", i);
 564                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 565                                 "tx%d_bytes", i);
 566                 }
 567                 for (i = 0; i < priv->rx_ring_num; i++) {
 568                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 569                                 "rx%d_packets", i);
 570                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 571                                 "rx%d_bytes", i);
 572 #ifdef LL_EXTENDED_STATS
 573                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 574                                 "rx%d_napi_yield", i);
 575                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 576                                 "rx%d_misses", i);
 577                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 578                                 "rx%d_cleaned", i);
 579 #endif
 580                 }
 581                 break;
 582         }
 583 }
 584
 585 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 586 {
 587         struct mlx4_en_priv *priv = netdev_priv(dev);
 588         struct mlx4_en_dev *mdev = priv->mdev;
 589         u32 autoneg = AUTONEG_DISABLE;
 590
 591         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 592             priv->port_state.autoneg) {
 593                 autoneg = AUTONEG_ENABLE;
 594         }
 595
 596         return autoneg;
 597 }
 598
 599 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 600 {
 601         struct mlx4_en_priv *priv = netdev_priv(dev);
 602         int trans_type;
 603
 604         /* SUPPORTED_1000baseT_Half isn't supported */
 605         cmd->supported = SUPPORTED_1000baseT_Full
 606                         |SUPPORTED_10000baseT_Full;
 607
 608         cmd->advertising = ADVERTISED_1000baseT_Full
 609                           |ADVERTISED_10000baseT_Full;
 610
 611         cmd->supported |= SUPPORTED_1000baseKX_Full
 612                         |SUPPORTED_10000baseKX4_Full
 613                         |SUPPORTED_10000baseKR_Full
 614                         |SUPPORTED_10000baseR_FEC
 615                         |SUPPORTED_40000baseKR4_Full
 616                         |SUPPORTED_40000baseCR4_Full
 617                         |SUPPORTED_40000baseSR4_Full
 618                         |SUPPORTED_40000baseLR4_Full;
 619
 620         /* ADVERTISED_1000baseT_Half isn't advertised */
 621         cmd->advertising |= ADVERTISED_1000baseKX_Full
 622                           |ADVERTISED_10000baseKX4_Full
 623                           |ADVERTISED_10000baseKR_Full
 624                           |ADVERTISED_10000baseR_FEC
 625                           |ADVERTISED_40000baseKR4_Full
 626                           |ADVERTISED_40000baseCR4_Full
 627                           |ADVERTISED_40000baseSR4_Full
 628                           |ADVERTISED_40000baseLR4_Full;
 629
 630         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 631                 return -ENOMEM;
 632
 633         cmd->autoneg = mlx4_en_autoneg_get(dev);
 634         if (cmd->autoneg == AUTONEG_ENABLE) {
 635                 cmd->supported |= SUPPORTED_Autoneg;
 636                 cmd->advertising |= ADVERTISED_Autoneg;
 637         }
 638
 639         trans_type = priv->port_state.transciver;
 640         if (netif_carrier_ok(dev)) {
 641                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 642                 cmd->duplex = DUPLEX_FULL;
 643         } else {
 644                 ethtool_cmd_speed_set(cmd, -1);
 645                 cmd->duplex = -1;
 646         }
 647
 648         if (trans_type > 0 && trans_type <= 0xC) {
 649                 cmd->port = PORT_FIBRE;
 650                 cmd->transceiver = XCVR_EXTERNAL;
 651                 cmd->supported |= SUPPORTED_FIBRE;
 652                 cmd->advertising |= ADVERTISED_FIBRE;
 653         } else if (trans_type == 0x80 || trans_type == 0) {
 654                 cmd->port = PORT_TP;
 655                 cmd->transceiver = XCVR_INTERNAL;
 656                 cmd->supported |= SUPPORTED_TP;
 657                 cmd->advertising |= ADVERTISED_TP;
 658         } else  {
 659                 cmd->port = -1;
 660                 cmd->transceiver = -1;
 661         }
 662         return 0;
 663 }
 664
 665 static const char *mlx4_en_duplex_to_string(int duplex)
 666 {
 667         switch (duplex) {
 668         case DUPLEX_FULL:
 669                 return "FULL";
 670         case DUPLEX_HALF:
 671                 return "HALF";
 672         default:
 673                 break;
 674         }
 675         return "UNKNOWN";
 676 }
 677
 678 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 679 {
 680         struct mlx4_en_priv *priv = netdev_priv(dev);
 681         struct mlx4_en_port_state *port_state = &priv->port_state;
 682
 683         if ((cmd->autoneg != port_state->autoneg) ||
 684             (ethtool_cmd_speed(cmd) != port_state->link_speed) ||
 685             (cmd->duplex != DUPLEX_FULL)) {
 686                 en_info(priv, "Changing port state properties (auto-negotiation"
 687                               " , speed/duplex) is not supported. Current:"
 688                               " auto-negotiation=%d speed/duplex=%d/%s\n",
 689                               port_state->autoneg, port_state->link_speed,
 690                               mlx4_en_duplex_to_string(DUPLEX_FULL));
 691                 return -EOPNOTSUPP;
 692         }
 693
 694         /* User provided same port state properties that are currently set.
 695          * Nothing to change
 696          */
 697         return 0;
 698 }
 699
 700 static int mlx4_en_get_coalesce(struct net_device *dev,
 701                               struct ethtool_coalesce *coal)
 702 {
 703         struct mlx4_en_priv *priv = netdev_priv(dev);
 704
 705         coal->tx_coalesce_usecs = priv->tx_usecs;
 706         coal->tx_max_coalesced_frames = priv->tx_frames;
 707         coal->rx_coalesce_usecs = priv->rx_usecs;
 708         coal->rx_max_coalesced_frames = priv->rx_frames;
 709
 710         coal->pkt_rate_low = priv->pkt_rate_low;
 711         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 712         coal->pkt_rate_high = priv->pkt_rate_high;
 713         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 714         coal->rate_sample_interval = priv->sample_interval;
 715         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 716         return 0;
 717 }
 718
 719 static int mlx4_en_set_coalesce(struct net_device *dev,
 720                               struct ethtool_coalesce *coal)
 721 {
 722         struct mlx4_en_priv *priv = netdev_priv(dev);
 723         int err, i;
 724
 725         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 726                            MLX4_EN_AUTO_CONF) ?
 727                                 MLX4_EN_RX_COAL_TARGET /
 728                                 priv->dev->mtu + 1 :
 729                                 coal->rx_max_coalesced_frames;
 730         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 731                           MLX4_EN_AUTO_CONF) ?
 732                                 MLX4_EN_RX_COAL_TIME :
 733                                 coal->rx_coalesce_usecs;
 734
 735         /* Setting TX coalescing parameters */
 736         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 737             coal->tx_max_coalesced_frames != priv->tx_frames) {
 738                 priv->tx_usecs = coal->tx_coalesce_usecs;
 739                 priv->tx_frames = coal->tx_max_coalesced_frames;
 740                 if (priv->port_up) {
 741                         for (i = 0; i < priv->tx_ring_num; i++) {
 742                                 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
 743                                 priv->tx_cq[i]->moder_time = priv->tx_usecs;
 744                                 if (mlx4_en_set_cq_moder(priv, priv->tx_cq[i]))
 745                                         en_warn(priv, "Failed changing moderation for TX cq %d\n", i);
 746                         }
 747                 }
 748         }
 749
 750         /* Set adaptive coalescing params */
 751         priv->pkt_rate_low = coal->pkt_rate_low;
 752         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 753         priv->pkt_rate_high = coal->pkt_rate_high;
 754         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 755         priv->sample_interval = coal->rate_sample_interval;
 756         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 757         if (priv->adaptive_rx_coal)
 758                 return 0;
 759
 760         if (priv->port_up) {
 761                 for (i = 0; i < priv->rx_ring_num; i++) {
 762                         priv->rx_cq[i]->moder_cnt = priv->rx_frames;
 763                         priv->rx_cq[i]->moder_time = priv->rx_usecs;
 764                         priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
 765                                 err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
 766                         if (err)
 767                                 return err;
 768                 }
 769         }
 770
 771         return 0;
 772 }
 773
 774 static int mlx4_en_set_pauseparam(struct net_device *dev,
 775                                 struct ethtool_pauseparam *pause)
 776 {
 777         struct mlx4_en_priv *priv = netdev_priv(dev);
 778         struct mlx4_en_dev *mdev = priv->mdev;
 779         int err;
 780
 781         if (pause->autoneg)
 782                 return -EOPNOTSUPP;
 783
 784         priv->prof->tx_pause = pause->tx_pause != 0;
 785         priv->prof->rx_pause = pause->rx_pause != 0;
 786         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 787                                     priv->rx_skb_size + ETH_FCS_LEN,
 788                                     priv->prof->tx_pause,
 789                                     priv->prof->tx_ppp,
 790                                     priv->prof->rx_pause,
 791                                     priv->prof->rx_ppp);
 792         if (err)
 793                 en_err(priv, "Failed setting pause params\n");
 794
 795         return err;
 796 }
 797
 798 static void mlx4_en_get_pauseparam(struct net_device *dev,
 799                                  struct ethtool_pauseparam *pause)
 800 {
 801         struct mlx4_en_priv *priv = netdev_priv(dev);
 802
 803         pause->tx_pause = priv->prof->tx_pause;
 804         pause->rx_pause = priv->prof->rx_pause;
 805         pause->autoneg = mlx4_en_autoneg_get(dev);
 806 }
 807
 808 /* rtnl lock must be taken before calling */
 809 int mlx4_en_pre_config(struct mlx4_en_priv *priv)
 810 {
 811 #ifdef CONFIG_RFS_ACCEL
 812         struct cpu_rmap *rmap;
 813
 814         if (!priv->dev->rx_cpu_rmap)
 815                 return 0;
 816
 817         /* Disable RFS events
 818          * Must have all RFS jobs flushed before freeing resources
 819          */
 820         rmap = priv->dev->rx_cpu_rmap;
 821         priv->dev->rx_cpu_rmap = NULL;
 822
 823         rtnl_unlock();
 824         free_irq_cpu_rmap(rmap);
 825         rtnl_lock();
 826
 827         if (priv->dev->rx_cpu_rmap)
 828                 return -EBUSY; /* another configuration completed while lock
 829                                 * was free
 830                                 */
 831
 832         /* Make sure all currently running filter_work are being processed
 833          * Other work will return immediatly because of disable_rfs
 834          */
 835         flush_workqueue(priv->mdev->workqueue);
 836
 837 #endif
 838
 839         return 0;
 840 }
 841
 842 static int mlx4_en_set_ringparam(struct net_device *dev,
 843                                  struct ethtool_ringparam *param)
 844 {
 845         struct mlx4_en_priv *priv = netdev_priv(dev);
 846         struct mlx4_en_dev *mdev = priv->mdev;
 847         u32 rx_size, tx_size;
 848         int port_up = 0;
 849         int err = 0;
 850         int i, n_stats;
 851         u64 *data = NULL;
 852
 853         if (!priv->port_up)
 854                 return -ENOMEM;
 855
 856         if (param->rx_jumbo_pending || param->rx_mini_pending)
 857                 return -EINVAL;
 858
 859         rx_size = roundup_pow_of_two(param->rx_pending);
 860         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
 861         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
 862         tx_size = roundup_pow_of_two(param->tx_pending);
 863         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 864         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 865
 866         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
 867                                         priv->rx_ring[0]->size) &&
 868             tx_size == priv->tx_ring[0]->size)
 869                 return 0;
 870         err = mlx4_en_pre_config(priv);
 871         if (err)
 872                 return err;
 873
 874         mutex_lock(&mdev->state_lock);
 875         if (priv->port_up) {
 876                 port_up = 1;
 877                 mlx4_en_stop_port(dev);
 878         }
 879
 880         /* Cache port statistics */
 881         n_stats = mlx4_en_get_sset_count(dev, ETH_SS_STATS);
 882         if (n_stats > 0) {
 883                 data = kmalloc(n_stats * sizeof(u64), GFP_KERNEL);
 884                 if (data)
 885                         mlx4_en_get_ethtool_stats(dev, NULL, data);
 886         }
 887
 888         mlx4_en_free_resources(priv);
 889
 890         priv->prof->tx_ring_size = tx_size;
 891         priv->prof->rx_ring_size = rx_size;
 892
 893         err = mlx4_en_alloc_resources(priv);
 894         if (err) {
 895                 en_err(priv, "Failed reallocating port resources\n");
 896                 goto out;
 897         }
 898
 899         /* Restore port statistics */
 900         if (n_stats > 0 && data)
 901                 mlx4_en_restore_ethtool_stats(priv, data);
 902
 903         if (port_up) {
 904                 err = mlx4_en_start_port(dev);
 905                 if (err) {
 906                         en_err(priv, "Failed starting port\n");
 907                         goto out;
 908                 }
 909
 910                 for (i = 0; i < priv->rx_ring_num; i++) {
 911                         priv->rx_cq[i]->moder_cnt = priv->rx_frames;
 912                         priv->rx_cq[i]->moder_time = priv->rx_usecs;
 913                         priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
 914                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
 915                         if (err)
 916                                 goto out;
 917                 }
 918         }
 919
 920 out:
 921         kfree(data);
 922         mutex_unlock(&mdev->state_lock);
 923         return err;
 924 }
 925
 926 static void mlx4_en_get_ringparam(struct net_device *dev,
 927                                   struct ethtool_ringparam *param)
 928 {
 929         struct mlx4_en_priv *priv = netdev_priv(dev);
 930
 931         if (!priv->port_up)
 932                 return;
 933
 934         memset(param, 0, sizeof(*param));
 935         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 936         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 937         param->rx_pending = priv->port_up ?
 938                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
 939         param->tx_pending = priv->tx_ring[0]->size;
 940 }
 941
 942 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
 943 {
 944         struct mlx4_en_priv *priv = netdev_priv(dev);
 945
 946         return priv->rx_ring_num;
 947 }
 948
 949 static int mlx4_en_get_rxfh_indir(struct net_device *dev, u32 *ring_index)
 950 {
 951         struct mlx4_en_priv *priv = netdev_priv(dev);
 952         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
 953         int rss_rings;
 954         size_t n = priv->rx_ring_num;
 955         int err = 0;
 956
 957         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
 958         rss_rings = 1 << ilog2(rss_rings);
 959
 960         while (n--) {
 961                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
 962                         rss_map->base_qpn;
 963         }
 964
 965         return err;
 966 }
 967
 968 static int mlx4_en_set_rxfh_indir(struct net_device *dev,
 969                 const u32 *ring_index)
 970 {
 971         struct mlx4_en_priv *priv = netdev_priv(dev);
 972         struct mlx4_en_dev *mdev = priv->mdev;
 973         int port_up = 0;
 974         int err = 0;
 975         int i;
 976         int rss_rings = 0;
 977
 978         /* Calculate RSS table size and make sure flows are spread evenly
 979          * between rings
 980          */
 981         for (i = 0; i < priv->rx_ring_num; i++) {
 982                 if (i > 0 && !ring_index[i] && !rss_rings)
 983                         rss_rings = i;
 984
 985                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
 986                         return -EINVAL;
 987         }
 988
 989         if (!rss_rings)
 990                 rss_rings = priv->rx_ring_num;
 991
 992         /* RSS table size must be an order of 2 */
 993         if (!is_power_of_2(rss_rings))
 994                 return -EINVAL;
 995
 996         mutex_lock(&mdev->state_lock);
 997         if (priv->port_up) {
 998                 port_up = 1;
 999                 mlx4_en_stop_port(dev);
1000         }
1001
1002         priv->prof->rss_rings = rss_rings;
1003
1004         if (port_up) {
1005                 err = mlx4_en_start_port(dev);
1006                 if (err)
1007                         en_err(priv, "Failed starting port\n");
1008         }
1009
1010         mutex_unlock(&mdev->state_lock);
1011         return err;
1012 }
1013
1014 #define all_zeros_or_all_ones(field)            \
1015         ((field) == 0 || (field) == (__force typeof(field))-1)
1016
1017 static int mlx4_en_validate_flow(struct net_device *dev,
1018                                  struct mlx4_ethtool_rxnfc *cmd)
1019 {
1020         struct ethtool_usrip4_spec *l3_mask;
1021         struct ethtool_tcpip4_spec *l4_mask;
1022         struct ethhdr *eth_mask;
1023
1024         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1025                 return -EINVAL;
1026
1027         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1028                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1029                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1030                         return -EINVAL;
1031         }
1032
1033         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1034         case TCP_V4_FLOW:
1035         case UDP_V4_FLOW:
1036                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1037                         return -EINVAL;
1038                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1039                 /* don't allow mask which isn't all 0 or 1 */
1040                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1041                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1042                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1043                     !all_zeros_or_all_ones(l4_mask->pdst))
1044                         return -EINVAL;
1045                 break;
1046         case IP_USER_FLOW:
1047                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1048                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1049                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1050                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1051                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1052                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1053                         return -EINVAL;
1054                 break;
1055         case ETHER_FLOW:
1056                 eth_mask = &cmd->fs.m_u.ether_spec;
1057                 /* source mac mask must not be set */
1058                 if (!is_zero_ether_addr(eth_mask->h_source))
1059                         return -EINVAL;
1060
1061                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1062                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1063                         return -EINVAL;
1064
1065                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1066                         return -EINVAL;
1067                 break;
1068         default:
1069                 return -EINVAL;
1070         }
1071
1072         if ((cmd->fs.flow_type & FLOW_EXT)) {
1073                 if (cmd->fs.m_ext.vlan_etype ||
1074                     !(cmd->fs.m_ext.vlan_tci == 0 ||
1075                       cmd->fs.m_ext.vlan_tci == cpu_to_be16(0xfff)))
1076                         return -EINVAL;
1077                 if (cmd->fs.m_ext.vlan_tci) {
1078                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) <
1079                             VLAN_MIN_VALUE ||
1080                             be16_to_cpu(cmd->fs.h_ext.vlan_tci) >
1081                             VLAN_MAX_VALUE)
1082                                 return -EINVAL;
1083                 }
1084         }
1085
1086         return 0;
1087 }
1088
1089 static int mlx4_en_ethtool_add_mac_rule(struct mlx4_ethtool_rxnfc *cmd,
1090                                         struct list_head *rule_list_h,
1091                                         struct mlx4_spec_list *spec_l2,
1092                                         unsigned char *mac)
1093 {
1094         int err = 0;
1095         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1096
1097         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1098         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1099         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1100
1101         if ((cmd->fs.flow_type & FLOW_EXT) && cmd->fs.m_ext.vlan_tci) {
1102                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1103                 spec_l2->eth.vlan_id_msk = cpu_to_be16(0xfff);
1104         }
1105
1106         list_add_tail(&spec_l2->list, rule_list_h);
1107
1108         return err;
1109 }
1110
1111 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1112                                                 struct mlx4_ethtool_rxnfc *cmd,
1113                                                 struct list_head *rule_list_h,
1114                                                 struct mlx4_spec_list *spec_l2,
1115                                                 __be32 ipv4_dst)
1116 {
1117         unsigned char mac[ETH_ALEN];
1118
1119         if (!ipv4_is_multicast(ipv4_dst)) {
1120                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1121                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1122                 else
1123                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1124         } else {
1125                 ip_eth_mc_map(ipv4_dst, mac);
1126         }
1127
1128         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1129 }
1130
1131 static int add_ip_rule(struct mlx4_en_priv *priv,
1132                                 struct mlx4_ethtool_rxnfc *cmd,
1133                                 struct list_head *list_h)
1134 {
1135         struct mlx4_spec_list *spec_l2 = NULL;
1136         struct mlx4_spec_list *spec_l3 = NULL;
1137         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1138
1139         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1140         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1141         if (!spec_l2 || !spec_l3) {
1142                 en_err(priv, "Fail to alloc ethtool rule.\n");
1143                 kfree(spec_l2);
1144                 kfree(spec_l3);
1145                 return -ENOMEM;
1146         }
1147
1148         mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1149                                              cmd->fs.h_u.
1150                                              usr_ip4_spec.ip4dst);
1151         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1152         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1153         if (l3_mask->ip4src)
1154                 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK;
1155         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1156         if (l3_mask->ip4dst)
1157                 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK;
1158         list_add_tail(&spec_l3->list, list_h);
1159
1160         return 0;
1161 }
1162
1163 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1164                              struct mlx4_ethtool_rxnfc *cmd,
1165                              struct list_head *list_h, int proto)
1166 {
1167         struct mlx4_spec_list *spec_l2 = NULL;
1168         struct mlx4_spec_list *spec_l3 = NULL;
1169         struct mlx4_spec_list *spec_l4 = NULL;
1170         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1171
1172         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1173         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1174         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1175         if (!spec_l2 || !spec_l3 || !spec_l4) {
1176                 en_err(priv, "Fail to alloc ethtool rule.\n");
1177                 kfree(spec_l2);
1178                 kfree(spec_l3);
1179                 kfree(spec_l4);
1180                 return -ENOMEM;
1181         }
1182
1183         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1184
1185         if (proto == TCP_V4_FLOW) {
1186                 mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1187                                                      spec_l2,
1188                                                      cmd->fs.h_u.
1189                                                      tcp_ip4_spec.ip4dst);
1190                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1191                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1192                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1193                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1194                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1195         } else {
1196                 mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1197                                                      spec_l2,
1198                                                      cmd->fs.h_u.
1199                                                      udp_ip4_spec.ip4dst);
1200                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1201                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1202                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1203                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1204                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1205         }
1206
1207         if (l4_mask->ip4src)
1208                 spec_l3->ipv4.src_ip_msk = MLX4_BE_WORD_MASK;
1209         if (l4_mask->ip4dst)
1210                 spec_l3->ipv4.dst_ip_msk = MLX4_BE_WORD_MASK;
1211
1212         if (l4_mask->psrc)
1213                 spec_l4->tcp_udp.src_port_msk = MLX4_BE_SHORT_MASK;
1214         if (l4_mask->pdst)
1215                 spec_l4->tcp_udp.dst_port_msk = MLX4_BE_SHORT_MASK;
1216
1217         list_add_tail(&spec_l3->list, list_h);
1218         list_add_tail(&spec_l4->list, list_h);
1219
1220         return 0;
1221 }
1222
1223 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1224                                              struct mlx4_ethtool_rxnfc *cmd,
1225                                              struct list_head *rule_list_h)
1226 {
1227         int err;
1228         struct ethhdr *eth_spec;
1229         struct mlx4_spec_list *spec_l2;
1230         struct mlx4_en_priv *priv = netdev_priv(dev);
1231
1232         err = mlx4_en_validate_flow(dev, cmd);
1233         if (err)
1234                 return err;
1235
1236         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1237         case ETHER_FLOW:
1238                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1239                 if (!spec_l2)
1240                         return -ENOMEM;
1241
1242                 eth_spec = &cmd->fs.h_u.ether_spec;
1243                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &eth_spec->h_dest[0]);
1244                 spec_l2->eth.ether_type = eth_spec->h_proto;
1245                 if (eth_spec->h_proto)
1246                         spec_l2->eth.ether_type_enable = 1;
1247                 break;
1248         case IP_USER_FLOW:
1249                 err = add_ip_rule(priv, cmd, rule_list_h);
1250                 break;
1251         case TCP_V4_FLOW:
1252                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1253                 break;
1254         case UDP_V4_FLOW:
1255                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1256                 break;
1257         }
1258
1259         return err;
1260 }
1261
1262 static int mlx4_en_flow_replace(struct net_device *dev,
1263                                 struct mlx4_ethtool_rxnfc *cmd)
1264 {
1265         int err;
1266         struct mlx4_en_priv *priv = netdev_priv(dev);
1267         struct mlx4_en_dev *mdev = priv->mdev;
1268         struct ethtool_flow_id *loc_rule;
1269         struct mlx4_spec_list *spec, *tmp_spec;
1270         u32 qpn;
1271         u64 reg_id;
1272
1273         struct mlx4_net_trans_rule rule = {
1274                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1275                 .exclusive = 0,
1276                 .allow_loopback = 1,
1277                 .promisc_mode = MLX4_FS_REGULAR,
1278         };
1279
1280         rule.port = priv->port;
1281         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1282         INIT_LIST_HEAD(&rule.list);
1283
1284         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1285         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1286                 qpn = priv->drop_qp.qpn;
1287         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1288                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1289         } else {
1290                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1291                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist.\n",
1292                                 cmd->fs.ring_cookie);
1293                         return -EINVAL;
1294                 }
1295                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1296                 if (!qpn) {
1297                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive.\n",
1298                                 cmd->fs.ring_cookie);
1299                         return -EINVAL;
1300                 }
1301         }
1302         rule.qpn = qpn;
1303         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1304         if (err)
1305                 goto out_free_list;
1306
1307         mutex_lock(&mdev->state_lock);
1308         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1309         if (loc_rule->id) {
1310                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1311                 if (err) {
1312                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1313                                cmd->fs.location, loc_rule->id);
1314                         goto unlock;
1315                 }
1316                 loc_rule->id = 0;
1317                 memset(&loc_rule->flow_spec, 0,
1318                        sizeof(struct ethtool_rx_flow_spec));
1319                 list_del(&loc_rule->list);
1320         }
1321         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1322         if (err) {
1323                 en_err(priv, "Fail to attach network rule at location %d.\n",
1324                        cmd->fs.location);
1325                 goto unlock;
1326         }
1327         loc_rule->id = reg_id;
1328         memcpy(&loc_rule->flow_spec, &cmd->fs,
1329                sizeof(struct ethtool_rx_flow_spec));
1330         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1331
1332 unlock:
1333         mutex_unlock(&mdev->state_lock);
1334 out_free_list:
1335         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1336                 list_del(&spec->list);
1337                 kfree(spec);
1338         }
1339         return err;
1340 }
1341
1342 static int mlx4_en_flow_detach(struct net_device *dev,
1343                                struct mlx4_ethtool_rxnfc *cmd)
1344 {
1345         int err = 0;
1346         struct ethtool_flow_id *rule;
1347         struct mlx4_en_priv *priv = netdev_priv(dev);
1348         struct mlx4_en_dev *mdev = priv->mdev;
1349
1350         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1351                 return -EINVAL;
1352
1353         mutex_lock(&mdev->state_lock);
1354         rule = &priv->ethtool_rules[cmd->fs.location];
1355         if (!rule->id) {
1356                 err =  -ENOENT;
1357                 goto out;
1358         }
1359
1360         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1361         if (err) {
1362                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1363                        cmd->fs.location, rule->id);
1364                 goto out;
1365         }
1366         rule->id = 0;
1367         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1368
1369         list_del(&rule->list);
1370 out:
1371         mutex_unlock(&mdev->state_lock);
1372         return err;
1373
1374 }
1375
1376 static int mlx4_en_get_flow(struct net_device *dev, struct mlx4_ethtool_rxnfc *cmd,
1377                             int loc)
1378 {
1379         int err = 0;
1380         struct ethtool_flow_id *rule;
1381         struct mlx4_en_priv *priv = netdev_priv(dev);
1382
1383         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1384                 return -EINVAL;
1385
1386         rule = &priv->ethtool_rules[loc];
1387         if (rule->id)
1388                 memcpy(&cmd->fs, &rule->flow_spec,
1389                        sizeof(struct ethtool_rx_flow_spec));
1390         else
1391                 err = -ENOENT;
1392
1393         return err;
1394 }
1395
1396 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1397 {
1398
1399         int i, res = 0;
1400         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1401                 if (priv->ethtool_rules[i].id)
1402                         res++;
1403         }
1404         return res;
1405
1406 }
1407
1408 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *c,
1409                              u32 *rule_locs)
1410 {
1411         struct mlx4_en_priv *priv = netdev_priv(dev);
1412         struct mlx4_en_dev *mdev = priv->mdev;
1413         int err = 0;
1414         int i = 0, priority = 0;
1415         struct mlx4_ethtool_rxnfc *cmd = (struct mlx4_ethtool_rxnfc *)c;
1416
1417         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1418              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1419              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1420             (mdev->dev->caps.steering_mode !=
1421              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1422                 return -EINVAL;
1423
1424         switch (cmd->cmd) {
1425         case ETHTOOL_GRXRINGS:
1426                 cmd->data = priv->rx_ring_num;
1427                 break;
1428         case ETHTOOL_GRXCLSRLCNT:
1429                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1430                 break;
1431         case ETHTOOL_GRXCLSRULE:
1432                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1433                 break;
1434         case ETHTOOL_GRXCLSRLALL:
1435                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1436                         err = mlx4_en_get_flow(dev, cmd, i);
1437                         if (!err)
1438                                 rule_locs[priority++] = i;
1439                         i++;
1440                 }
1441                 err = 0;
1442                 break;
1443         default:
1444                 err = -EOPNOTSUPP;
1445                 break;
1446         }
1447
1448         return err;
1449 }
1450
1451 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *c)
1452 {
1453         int err = 0;
1454         struct mlx4_en_priv *priv = netdev_priv(dev);
1455         struct mlx4_en_dev *mdev = priv->mdev;
1456         struct mlx4_ethtool_rxnfc *cmd = (struct mlx4_ethtool_rxnfc *)c;
1457
1458         if (mdev->dev->caps.steering_mode !=
1459             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1460                 return -EINVAL;
1461
1462         switch (cmd->cmd) {
1463         case ETHTOOL_SRXCLSRLINS:
1464                 err = mlx4_en_flow_replace(dev, cmd);
1465                 break;
1466         case ETHTOOL_SRXCLSRLDEL:
1467                 err = mlx4_en_flow_detach(dev, cmd);
1468                 break;
1469         default:
1470                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1471                 return -EINVAL;
1472         }
1473
1474         return err;
1475 }
1476
1477 static void mlx4_en_get_channels(struct net_device *dev,
1478                                  struct ethtool_channels *channel)
1479 {
1480         struct mlx4_en_priv *priv = netdev_priv(dev);
1481
1482         memset(channel, 0, sizeof(*channel));
1483
1484         channel->max_rx = MAX_RX_RINGS;
1485         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1486
1487         channel->rx_count = priv->rx_ring_num;
1488         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1489 }
1490
1491 static int mlx4_en_set_channels(struct net_device *dev,
1492                                 struct ethtool_channels *channel)
1493 {
1494         struct mlx4_en_priv *priv = netdev_priv(dev);
1495         struct mlx4_en_dev *mdev = priv->mdev;
1496         int port_up = 0;
1497         int i;
1498         int err = 0;
1499
1500         if (channel->other_count || channel->combined_count ||
1501             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1502             channel->rx_count > MAX_RX_RINGS ||
1503             !channel->tx_count || !channel->rx_count)
1504                 return -EINVAL;
1505
1506         err = mlx4_en_pre_config(priv);
1507         if (err)
1508                 return err;
1509
1510         mutex_lock(&mdev->state_lock);
1511         if (priv->port_up) {
1512                 port_up = 1;
1513                 mlx4_en_stop_port(dev);
1514         }
1515
1516         mlx4_en_free_resources(priv);
1517
1518         priv->num_tx_rings_p_up = channel->tx_count;
1519         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1520         priv->rx_ring_num = channel->rx_count;
1521
1522         err = mlx4_en_alloc_resources(priv);
1523         if (err) {
1524                 en_err(priv, "Failed reallocating port resources\n");
1525                 goto out;
1526         }
1527
1528         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1529         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1530
1531         mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1532
1533         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1534         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1535
1536         if (port_up) {
1537                 err = mlx4_en_start_port(dev);
1538                 if (err)
1539                         en_err(priv, "Failed starting port\n");
1540
1541                 for (i = 0; i < priv->rx_ring_num; i++) {
1542                         priv->rx_cq[i]->moder_cnt = priv->rx_frames;
1543                         priv->rx_cq[i]->moder_time = priv->rx_usecs;
1544                         priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
1545                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
1546                         if (err)
1547                                 goto out;
1548                 }
1549         }
1550
1551 out:
1552         mutex_unlock(&mdev->state_lock);
1553         return err;
1554 }
1555
1556 static int mlx4_en_get_ts_info(struct net_device *dev,
1557                                struct ethtool_ts_info *info)
1558 {
1559         struct mlx4_en_priv *priv = netdev_priv(dev);
1560         struct mlx4_en_dev *mdev = priv->mdev;
1561         int ret;
1562
1563         ret = ethtool_op_get_ts_info(dev, info);
1564         if (ret)
1565                 return ret;
1566
1567         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1568                 info->so_timestamping |=
1569                         SOF_TIMESTAMPING_TX_HARDWARE |
1570                         SOF_TIMESTAMPING_RX_HARDWARE |
1571                         SOF_TIMESTAMPING_RAW_HARDWARE;
1572
1573                 info->tx_types =
1574                         (1 << HWTSTAMP_TX_OFF) |
1575                         (1 << HWTSTAMP_TX_ON);
1576
1577                 info->rx_filters =
1578                         (1 << HWTSTAMP_FILTER_NONE) |
1579                         (1 << HWTSTAMP_FILTER_ALL);
1580         }
1581
1582         return ret;
1583 }
1584
1585 const struct ethtool_ops mlx4_en_ethtool_ops = {
1586         .get_drvinfo = mlx4_en_get_drvinfo,
1587         .get_settings = mlx4_en_get_settings,
1588         .set_settings = mlx4_en_set_settings,
1589         .get_link = ethtool_op_get_link,
1590         .get_strings = mlx4_en_get_strings,
1591         .get_sset_count = mlx4_en_get_sset_count,
1592         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1593         .self_test = mlx4_en_self_test,
1594         .get_wol = mlx4_en_get_wol,
1595         .set_wol = mlx4_en_set_wol,
1596         .get_msglevel = mlx4_en_get_msglevel,
1597         .set_msglevel = mlx4_en_set_msglevel,
1598         .get_coalesce = mlx4_en_get_coalesce,
1599         .set_coalesce = mlx4_en_set_coalesce,
1600         .get_pauseparam = mlx4_en_get_pauseparam,
1601         .set_pauseparam = mlx4_en_set_pauseparam,
1602         .get_ringparam = mlx4_en_get_ringparam,
1603         .set_ringparam = mlx4_en_set_ringparam,
1604         .get_rxnfc = mlx4_en_get_rxnfc,
1605         .set_rxnfc = mlx4_en_set_rxnfc,
1606         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1607         .get_rxfh_indir = mlx4_en_get_rxfh_indir,
1608         .set_rxfh_indir = mlx4_en_set_rxfh_indir,
1609         .get_channels = mlx4_en_get_channels,
1610         .set_channels = mlx4_en_set_channels,
1611         .get_ts_info = mlx4_en_get_ts_info,
1612 };
1613
1614
1615
1616
1617