drivers/net/ethernet/mellanox/mlx4/en_ethtool.c

   1 /*
   2  * Copyright (c) 2007 Mellanox Technologies. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  *
  32  */
  33
  34 #include <linux/kernel.h>
  35 #include <linux/ethtool.h>
  36 #include <linux/netdevice.h>
  37 #include <linux/mlx4/driver.h>
  38 #include <linux/mlx4/device.h>
  39 #include <linux/in.h>
  40 #include <net/ip.h>
  41 #include <linux/bitmap.h>
  42
  43 #include "mlx4_en.h"
  44 #include "en_port.h"
  45
  46 #define EN_ETHTOOL_QP_ATTACH (1ull << 63)
  47 #define EN_ETHTOOL_SHORT_MASK cpu_to_be16(0xffff)
  48 #define EN_ETHTOOL_WORD_MASK  cpu_to_be32(0xffffffff)
  49
  50 static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
  51 {
  52         int i;
  53         int err = 0;
  54
  55         for (i = 0; i < priv->tx_ring_num; i++) {
  56                 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
  57                 priv->tx_cq[i]->moder_time = priv->tx_usecs;
  58                 if (priv->port_up) {
  59                         err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
  60                         if (err)
  61                                 return err;
  62                 }
  63         }
  64
  65         if (priv->adaptive_rx_coal)
  66                 return 0;
  67
  68         for (i = 0; i < priv->rx_ring_num; i++) {
  69                 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
  70                 priv->rx_cq[i]->moder_time = priv->rx_usecs;
  71                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
  72                 if (priv->port_up) {
  73                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
  74                         if (err)
  75                                 return err;
  76                 }
  77         }
  78
  79         return err;
  80 }
  81
  82 static void
  83 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  84 {
  85         struct mlx4_en_priv *priv = netdev_priv(dev);
  86         struct mlx4_en_dev *mdev = priv->mdev;
  87
  88         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  89         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  90                 sizeof(drvinfo->version));
  91         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  92                 "%d.%d.%d",
  93                 (u16) (mdev->dev->caps.fw_ver >> 32),
  94                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  95                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  96         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
  97                 sizeof(drvinfo->bus_info));
  98         drvinfo->n_stats = 0;
  99         drvinfo->regdump_len = 0;
 100         drvinfo->eedump_len = 0;
 101 }
 102
 103 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 104         "blueflame",
 105 };
 106
 107 static const char main_strings[][ETH_GSTRING_LEN] = {
 108         /* main statistics */
 109         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 110         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 111         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 112         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 113         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 114         "tx_heartbeat_errors", "tx_window_errors",
 115
 116         /* port statistics */
 117         "tso_packets",
 118         "xmit_more",
 119         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 120         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 121
 122         /* priority flow control statistics rx */
 123         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 124         "rx_pause_transition_prio_0",
 125         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 126         "rx_pause_transition_prio_1",
 127         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 128         "rx_pause_transition_prio_2",
 129         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 130         "rx_pause_transition_prio_3",
 131         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 132         "rx_pause_transition_prio_4",
 133         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 134         "rx_pause_transition_prio_5",
 135         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 136         "rx_pause_transition_prio_6",
 137         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 138         "rx_pause_transition_prio_7",
 139
 140         /* flow control statistics rx */
 141         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 142
 143         /* priority flow control statistics tx */
 144         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 145         "tx_pause_transition_prio_0",
 146         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 147         "tx_pause_transition_prio_1",
 148         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 149         "tx_pause_transition_prio_2",
 150         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 151         "tx_pause_transition_prio_3",
 152         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 153         "tx_pause_transition_prio_4",
 154         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 155         "tx_pause_transition_prio_5",
 156         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 157         "tx_pause_transition_prio_6",
 158         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 159         "tx_pause_transition_prio_7",
 160
 161         /* flow control statistics tx */
 162         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 163
 164         /* packet statistics */
 165         "rx_multicast_packets",
 166         "rx_broadcast_packets",
 167         "rx_jabbers",
 168         "rx_in_range_length_error",
 169         "rx_out_range_length_error",
 170         "tx_multicast_packets",
 171         "tx_broadcast_packets",
 172         "rx_prio_0_packets", "rx_prio_0_bytes",
 173         "rx_prio_1_packets", "rx_prio_1_bytes",
 174         "rx_prio_2_packets", "rx_prio_2_bytes",
 175         "rx_prio_3_packets", "rx_prio_3_bytes",
 176         "rx_prio_4_packets", "rx_prio_4_bytes",
 177         "rx_prio_5_packets", "rx_prio_5_bytes",
 178         "rx_prio_6_packets", "rx_prio_6_bytes",
 179         "rx_prio_7_packets", "rx_prio_7_bytes",
 180         "rx_novlan_packets", "rx_novlan_bytes",
 181         "tx_prio_0_packets", "tx_prio_0_bytes",
 182         "tx_prio_1_packets", "tx_prio_1_bytes",
 183         "tx_prio_2_packets", "tx_prio_2_bytes",
 184         "tx_prio_3_packets", "tx_prio_3_bytes",
 185         "tx_prio_4_packets", "tx_prio_4_bytes",
 186         "tx_prio_5_packets", "tx_prio_5_bytes",
 187         "tx_prio_6_packets", "tx_prio_6_bytes",
 188         "tx_prio_7_packets", "tx_prio_7_bytes",
 189         "tx_novlan_packets", "tx_novlan_bytes",
 190
 191 };
 192
 193 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 194         "Interrupt Test",
 195         "Link Test",
 196         "Speed Test",
 197         "Register Test",
 198         "Loopback Test",
 199 };
 200
 201 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 202 {
 203         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 204 }
 205
 206 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 207 {
 208         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 209 }
 210
 211 static void mlx4_en_get_wol(struct net_device *netdev,
 212                             struct ethtool_wolinfo *wol)
 213 {
 214         struct mlx4_en_priv *priv = netdev_priv(netdev);
 215         int err = 0;
 216         u64 config = 0;
 217         u64 mask;
 218
 219         if ((priv->port < 1) || (priv->port > 2)) {
 220                 en_err(priv, "Failed to get WoL information\n");
 221                 return;
 222         }
 223
 224         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 225                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 226
 227         if (!(priv->mdev->dev->caps.flags & mask)) {
 228                 wol->supported = 0;
 229                 wol->wolopts = 0;
 230                 return;
 231         }
 232
 233         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 234         if (err) {
 235                 en_err(priv, "Failed to get WoL information\n");
 236                 return;
 237         }
 238
 239         if (config & MLX4_EN_WOL_MAGIC)
 240                 wol->supported = WAKE_MAGIC;
 241         else
 242                 wol->supported = 0;
 243
 244         if (config & MLX4_EN_WOL_ENABLED)
 245                 wol->wolopts = WAKE_MAGIC;
 246         else
 247                 wol->wolopts = 0;
 248 }
 249
 250 static int mlx4_en_set_wol(struct net_device *netdev,
 251                             struct ethtool_wolinfo *wol)
 252 {
 253         struct mlx4_en_priv *priv = netdev_priv(netdev);
 254         u64 config = 0;
 255         int err = 0;
 256         u64 mask;
 257
 258         if ((priv->port < 1) || (priv->port > 2))
 259                 return -EOPNOTSUPP;
 260
 261         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 262                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 263
 264         if (!(priv->mdev->dev->caps.flags & mask))
 265                 return -EOPNOTSUPP;
 266
 267         if (wol->supported & ~WAKE_MAGIC)
 268                 return -EINVAL;
 269
 270         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 271         if (err) {
 272                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 273                 return err;
 274         }
 275
 276         if (wol->wolopts & WAKE_MAGIC) {
 277                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 278                                 MLX4_EN_WOL_MAGIC;
 279         } else {
 280                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 281                 config |= MLX4_EN_WOL_DO_MODIFY;
 282         }
 283
 284         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 285         if (err)
 286                 en_err(priv, "Failed to set WoL information\n");
 287
 288         return err;
 289 }
 290
 291 struct bitmap_iterator {
 292         unsigned long *stats_bitmap;
 293         unsigned int count;
 294         unsigned int iterator;
 295         bool advance_array; /* if set, force no increments */
 296 };
 297
 298 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 299                                         unsigned long *stats_bitmap,
 300                                         int count)
 301 {
 302         h->iterator = 0;
 303         h->advance_array = !bitmap_empty(stats_bitmap, count);
 304         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 305                 : count;
 306         h->stats_bitmap = stats_bitmap;
 307 }
 308
 309 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 310 {
 311         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 312 }
 313
 314 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 315 {
 316         return h->iterator++;
 317 }
 318
 319 static inline unsigned int
 320 bitmap_iterator_count(struct bitmap_iterator *h)
 321 {
 322         return h->count;
 323 }
 324
 325 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 326 {
 327         struct mlx4_en_priv *priv = netdev_priv(dev);
 328         struct bitmap_iterator it;
 329
 330         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 331
 332         switch (sset) {
 333         case ETH_SS_STATS:
 334                 return bitmap_iterator_count(&it) +
 335                         (priv->tx_ring_num * 2) +
 336 #ifdef CONFIG_NET_RX_BUSY_POLL
 337                         (priv->rx_ring_num * 5);
 338 #else
 339                         (priv->rx_ring_num * 2);
 340 #endif
 341         case ETH_SS_TEST:
 342                 return MLX4_EN_NUM_SELF_TEST - !(priv->mdev->dev->caps.flags
 343                                         & MLX4_DEV_CAP_FLAG_UC_LOOPBACK) * 2;
 344         case ETH_SS_PRIV_FLAGS:
 345                 return ARRAY_SIZE(mlx4_en_priv_flags);
 346         default:
 347                 return -EOPNOTSUPP;
 348         }
 349 }
 350
 351 static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 352                 struct ethtool_stats *stats, uint64_t *data)
 353 {
 354         struct mlx4_en_priv *priv = netdev_priv(dev);
 355         int index = 0;
 356         int i;
 357         struct bitmap_iterator it;
 358
 359         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 360
 361         spin_lock_bh(&priv->stats_lock);
 362
 363         for (i = 0; i < NUM_MAIN_STATS; i++, bitmap_iterator_inc(&it))
 364                 if (bitmap_iterator_test(&it))
 365                         data[index++] = ((unsigned long *)&priv->stats)[i];
 366
 367         for (i = 0; i < NUM_PORT_STATS; i++, bitmap_iterator_inc(&it))
 368                 if (bitmap_iterator_test(&it))
 369                         data[index++] = ((unsigned long *)&priv->port_stats)[i];
 370
 371         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 372              i++, bitmap_iterator_inc(&it))
 373                 if (bitmap_iterator_test(&it))
 374                         data[index++] =
 375                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 376
 377         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 378                 if (bitmap_iterator_test(&it))
 379                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 380
 381         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 382              i++, bitmap_iterator_inc(&it))
 383                 if (bitmap_iterator_test(&it))
 384                         data[index++] =
 385                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 386
 387         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 388                 if (bitmap_iterator_test(&it))
 389                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 390
 391         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 392                 if (bitmap_iterator_test(&it))
 393                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 394
 395         for (i = 0; i < priv->tx_ring_num; i++) {
 396                 data[index++] = priv->tx_ring[i]->packets;
 397                 data[index++] = priv->tx_ring[i]->bytes;
 398         }
 399         for (i = 0; i < priv->rx_ring_num; i++) {
 400                 data[index++] = priv->rx_ring[i]->packets;
 401                 data[index++] = priv->rx_ring[i]->bytes;
 402 #ifdef CONFIG_NET_RX_BUSY_POLL
 403                 data[index++] = priv->rx_ring[i]->yields;
 404                 data[index++] = priv->rx_ring[i]->misses;
 405                 data[index++] = priv->rx_ring[i]->cleaned;
 406 #endif
 407         }
 408         spin_unlock_bh(&priv->stats_lock);
 409
 410 }
 411
 412 static void mlx4_en_self_test(struct net_device *dev,
 413                               struct ethtool_test *etest, u64 *buf)
 414 {
 415         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 416 }
 417
 418 static void mlx4_en_get_strings(struct net_device *dev,
 419                                 uint32_t stringset, uint8_t *data)
 420 {
 421         struct mlx4_en_priv *priv = netdev_priv(dev);
 422         int index = 0;
 423         int i, strings = 0;
 424         struct bitmap_iterator it;
 425
 426         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 427
 428         switch (stringset) {
 429         case ETH_SS_TEST:
 430                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 431                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 432                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 433                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 434                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 435                 break;
 436
 437         case ETH_SS_STATS:
 438                 /* Add main counters */
 439                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 440                      bitmap_iterator_inc(&it))
 441                         if (bitmap_iterator_test(&it))
 442                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 443                                        main_strings[strings]);
 444
 445                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 446                      bitmap_iterator_inc(&it))
 447                         if (bitmap_iterator_test(&it))
 448                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 449                                        main_strings[strings]);
 450
 451                 for (i = 0; i < NUM_FLOW_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_PKT_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 < priv->tx_ring_num; i++) {
 464                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 465                                 "tx%d_packets", i);
 466                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 467                                 "tx%d_bytes", i);
 468                 }
 469                 for (i = 0; i < priv->rx_ring_num; i++) {
 470                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 471                                 "rx%d_packets", i);
 472                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 473                                 "rx%d_bytes", i);
 474 #ifdef CONFIG_NET_RX_BUSY_POLL
 475                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 476                                 "rx%d_napi_yield", i);
 477                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 478                                 "rx%d_misses", i);
 479                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 480                                 "rx%d_cleaned", i);
 481 #endif
 482                 }
 483                 break;
 484         case ETH_SS_PRIV_FLAGS:
 485                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 486                         strcpy(data + i * ETH_GSTRING_LEN,
 487                                mlx4_en_priv_flags[i]);
 488                 break;
 489
 490         }
 491 }
 492
 493 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 494 {
 495         struct mlx4_en_priv *priv = netdev_priv(dev);
 496         struct mlx4_en_dev *mdev = priv->mdev;
 497         u32 autoneg = AUTONEG_DISABLE;
 498
 499         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 500             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 501                 autoneg = AUTONEG_ENABLE;
 502
 503         return autoneg;
 504 }
 505
 506 static u32 ptys_get_supported_port(struct mlx4_ptys_reg *ptys_reg)
 507 {
 508         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 509
 510         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 511                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 512                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 513                         return SUPPORTED_TP;
 514         }
 515
 516         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 517                          | MLX4_PROT_MASK(MLX4_10GBASE_SR)
 518                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 519                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4)
 520                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 521                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 522                         return SUPPORTED_FIBRE;
 523         }
 524
 525         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 526                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 527                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 528                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 529                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 530                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 531                         return SUPPORTED_Backplane;
 532         }
 533         return 0;
 534 }
 535
 536 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 537 {
 538         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 539
 540         if (!eth_proto) /* link down */
 541                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 542
 543         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 544                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 545                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 546                         return PORT_TP;
 547         }
 548
 549         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 550                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 551                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 552                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 553                         return PORT_FIBRE;
 554         }
 555
 556         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 557                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 558                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 559                         return PORT_DA;
 560         }
 561
 562         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 563                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 564                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 565                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 566                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 567                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 568                         return PORT_NONE;
 569         }
 570         return PORT_OTHER;
 571 }
 572
 573 #define MLX4_LINK_MODES_SZ \
 574         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 575
 576 enum ethtool_report {
 577         SUPPORTED = 0,
 578         ADVERTISED = 1,
 579         SPEED = 2
 580 };
 581
 582 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 583 static u32 ptys2ethtool_map[MLX4_LINK_MODES_SZ][3] = {
 584         [MLX4_100BASE_TX] = {
 585                 SUPPORTED_100baseT_Full,
 586                 ADVERTISED_100baseT_Full,
 587                 SPEED_100
 588                 },
 589
 590         [MLX4_1000BASE_T] = {
 591                 SUPPORTED_1000baseT_Full,
 592                 ADVERTISED_1000baseT_Full,
 593                 SPEED_1000
 594                 },
 595         [MLX4_1000BASE_CX_SGMII] = {
 596                 SUPPORTED_1000baseKX_Full,
 597                 ADVERTISED_1000baseKX_Full,
 598                 SPEED_1000
 599                 },
 600         [MLX4_1000BASE_KX] = {
 601                 SUPPORTED_1000baseKX_Full,
 602                 ADVERTISED_1000baseKX_Full,
 603                 SPEED_1000
 604                 },
 605
 606         [MLX4_10GBASE_T] = {
 607                 SUPPORTED_10000baseT_Full,
 608                 ADVERTISED_10000baseT_Full,
 609                 SPEED_10000
 610                 },
 611         [MLX4_10GBASE_CX4] = {
 612                 SUPPORTED_10000baseKX4_Full,
 613                 ADVERTISED_10000baseKX4_Full,
 614                 SPEED_10000
 615                 },
 616         [MLX4_10GBASE_KX4] = {
 617                 SUPPORTED_10000baseKX4_Full,
 618                 ADVERTISED_10000baseKX4_Full,
 619                 SPEED_10000
 620                 },
 621         [MLX4_10GBASE_KR] = {
 622                 SUPPORTED_10000baseKR_Full,
 623                 ADVERTISED_10000baseKR_Full,
 624                 SPEED_10000
 625                 },
 626         [MLX4_10GBASE_CR] = {
 627                 SUPPORTED_10000baseKR_Full,
 628                 ADVERTISED_10000baseKR_Full,
 629                 SPEED_10000
 630                 },
 631         [MLX4_10GBASE_SR] = {
 632                 SUPPORTED_10000baseKR_Full,
 633                 ADVERTISED_10000baseKR_Full,
 634                 SPEED_10000
 635                 },
 636
 637         [MLX4_20GBASE_KR2] = {
 638                 SUPPORTED_20000baseMLD2_Full | SUPPORTED_20000baseKR2_Full,
 639                 ADVERTISED_20000baseMLD2_Full | ADVERTISED_20000baseKR2_Full,
 640                 SPEED_20000
 641                 },
 642
 643         [MLX4_40GBASE_CR4] = {
 644                 SUPPORTED_40000baseCR4_Full,
 645                 ADVERTISED_40000baseCR4_Full,
 646                 SPEED_40000
 647                 },
 648         [MLX4_40GBASE_KR4] = {
 649                 SUPPORTED_40000baseKR4_Full,
 650                 ADVERTISED_40000baseKR4_Full,
 651                 SPEED_40000
 652                 },
 653         [MLX4_40GBASE_SR4] = {
 654                 SUPPORTED_40000baseSR4_Full,
 655                 ADVERTISED_40000baseSR4_Full,
 656                 SPEED_40000
 657                 },
 658
 659         [MLX4_56GBASE_KR4] = {
 660                 SUPPORTED_56000baseKR4_Full,
 661                 ADVERTISED_56000baseKR4_Full,
 662                 SPEED_56000
 663                 },
 664         [MLX4_56GBASE_CR4] = {
 665                 SUPPORTED_56000baseCR4_Full,
 666                 ADVERTISED_56000baseCR4_Full,
 667                 SPEED_56000
 668                 },
 669         [MLX4_56GBASE_SR4] = {
 670                 SUPPORTED_56000baseSR4_Full,
 671                 ADVERTISED_56000baseSR4_Full,
 672                 SPEED_56000
 673                 },
 674 };
 675
 676 static u32 ptys2ethtool_link_modes(u32 eth_proto, enum ethtool_report report)
 677 {
 678         int i;
 679         u32 link_modes = 0;
 680
 681         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 682                 if (eth_proto & MLX4_PROT_MASK(i))
 683                         link_modes |= ptys2ethtool_map[i][report];
 684         }
 685         return link_modes;
 686 }
 687
 688 static u32 ethtool2ptys_link_modes(u32 link_modes, enum ethtool_report report)
 689 {
 690         int i;
 691         u32 ptys_modes = 0;
 692
 693         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 694                 if (ptys2ethtool_map[i][report] & link_modes)
 695                         ptys_modes |= 1 << i;
 696         }
 697         return ptys_modes;
 698 }
 699
 700 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 701 static u32 speed2ptys_link_modes(u32 speed)
 702 {
 703         int i;
 704         u32 ptys_modes = 0;
 705
 706         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 707                 if (ptys2ethtool_map[i][SPEED] == speed)
 708                         ptys_modes |= 1 << i;
 709         }
 710         return ptys_modes;
 711 }
 712
 713 static int ethtool_get_ptys_settings(struct net_device *dev,
 714                                      struct ethtool_cmd *cmd)
 715 {
 716         struct mlx4_en_priv *priv = netdev_priv(dev);
 717         struct mlx4_ptys_reg ptys_reg;
 718         u32 eth_proto;
 719         int ret;
 720
 721         memset(&ptys_reg, 0, sizeof(ptys_reg));
 722         ptys_reg.local_port = priv->port;
 723         ptys_reg.proto_mask = MLX4_PTYS_EN;
 724         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 725                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 726         if (ret) {
 727                 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
 728                         ret);
 729                 return ret;
 730         }
 731         en_dbg(DRV, priv, "ptys_reg.proto_mask       %x\n",
 732                ptys_reg.proto_mask);
 733         en_dbg(DRV, priv, "ptys_reg.eth_proto_cap    %x\n",
 734                be32_to_cpu(ptys_reg.eth_proto_cap));
 735         en_dbg(DRV, priv, "ptys_reg.eth_proto_admin  %x\n",
 736                be32_to_cpu(ptys_reg.eth_proto_admin));
 737         en_dbg(DRV, priv, "ptys_reg.eth_proto_oper   %x\n",
 738                be32_to_cpu(ptys_reg.eth_proto_oper));
 739         en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
 740                be32_to_cpu(ptys_reg.eth_proto_lp_adv));
 741
 742         cmd->supported = 0;
 743         cmd->advertising = 0;
 744
 745         cmd->supported |= ptys_get_supported_port(&ptys_reg);
 746
 747         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 748         cmd->supported |= ptys2ethtool_link_modes(eth_proto, SUPPORTED);
 749
 750         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 751         cmd->advertising |= ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 752
 753         cmd->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
 754         cmd->advertising |= (priv->prof->tx_pause) ? ADVERTISED_Pause : 0;
 755
 756         cmd->advertising |= (priv->prof->tx_pause ^ priv->prof->rx_pause) ?
 757                 ADVERTISED_Asym_Pause : 0;
 758
 759         cmd->port = ptys_get_active_port(&ptys_reg);
 760         cmd->transceiver = (SUPPORTED_TP & cmd->supported) ?
 761                 XCVR_EXTERNAL : XCVR_INTERNAL;
 762
 763         if (mlx4_en_autoneg_get(dev)) {
 764                 cmd->supported |= SUPPORTED_Autoneg;
 765                 cmd->advertising |= ADVERTISED_Autoneg;
 766         }
 767
 768         cmd->autoneg = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 769                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 770
 771         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 772         cmd->lp_advertising = ptys2ethtool_link_modes(eth_proto, ADVERTISED);
 773
 774         cmd->lp_advertising |= (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 775                         ADVERTISED_Autoneg : 0;
 776
 777         cmd->phy_address = 0;
 778         cmd->mdio_support = 0;
 779         cmd->maxtxpkt = 0;
 780         cmd->maxrxpkt = 0;
 781         cmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
 782         cmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 783
 784         return ret;
 785 }
 786
 787 static void ethtool_get_default_settings(struct net_device *dev,
 788                                          struct ethtool_cmd *cmd)
 789 {
 790         struct mlx4_en_priv *priv = netdev_priv(dev);
 791         int trans_type;
 792
 793         cmd->autoneg = AUTONEG_DISABLE;
 794         cmd->supported = SUPPORTED_10000baseT_Full;
 795         cmd->advertising = ADVERTISED_10000baseT_Full;
 796         trans_type = priv->port_state.transceiver;
 797
 798         if (trans_type > 0 && trans_type <= 0xC) {
 799                 cmd->port = PORT_FIBRE;
 800                 cmd->transceiver = XCVR_EXTERNAL;
 801                 cmd->supported |= SUPPORTED_FIBRE;
 802                 cmd->advertising |= ADVERTISED_FIBRE;
 803         } else if (trans_type == 0x80 || trans_type == 0) {
 804                 cmd->port = PORT_TP;
 805                 cmd->transceiver = XCVR_INTERNAL;
 806                 cmd->supported |= SUPPORTED_TP;
 807                 cmd->advertising |= ADVERTISED_TP;
 808         } else  {
 809                 cmd->port = -1;
 810                 cmd->transceiver = -1;
 811         }
 812 }
 813
 814 static int mlx4_en_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 815 {
 816         struct mlx4_en_priv *priv = netdev_priv(dev);
 817         int ret = -EINVAL;
 818
 819         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 820                 return -ENOMEM;
 821
 822         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 823                priv->port_state.flags & MLX4_EN_PORT_ANC,
 824                priv->port_state.flags & MLX4_EN_PORT_ANE);
 825
 826         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 827                 ret = ethtool_get_ptys_settings(dev, cmd);
 828         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 829                 ethtool_get_default_settings(dev, cmd);
 830
 831         if (netif_carrier_ok(dev)) {
 832                 ethtool_cmd_speed_set(cmd, priv->port_state.link_speed);
 833                 cmd->duplex = DUPLEX_FULL;
 834         } else {
 835                 ethtool_cmd_speed_set(cmd, SPEED_UNKNOWN);
 836                 cmd->duplex = DUPLEX_UNKNOWN;
 837         }
 838         return 0;
 839 }
 840
 841 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 842 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 843                                    __be32 proto_cap)
 844 {
 845         __be32 proto_admin = 0;
 846
 847         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 848                 proto_admin = proto_cap;
 849                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 850                         be32_to_cpu(proto_cap));
 851         } else {
 852                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 853
 854                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 855                 en_info(priv, "Setting Speed to %d\n", speed);
 856         }
 857         return proto_admin;
 858 }
 859
 860 static int mlx4_en_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 861 {
 862         struct mlx4_en_priv *priv = netdev_priv(dev);
 863         struct mlx4_ptys_reg ptys_reg;
 864         __be32 proto_admin;
 865         int ret;
 866
 867         u32 ptys_adv = ethtool2ptys_link_modes(cmd->advertising, ADVERTISED);
 868         int speed = ethtool_cmd_speed(cmd);
 869
 870         en_dbg(DRV, priv, "Set Speed=%d adv=0x%x autoneg=%d duplex=%d\n",
 871                speed, cmd->advertising, cmd->autoneg, cmd->duplex);
 872
 873         if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 874             (cmd->duplex == DUPLEX_HALF))
 875                 return -EINVAL;
 876
 877         memset(&ptys_reg, 0, sizeof(ptys_reg));
 878         ptys_reg.local_port = priv->port;
 879         ptys_reg.proto_mask = MLX4_PTYS_EN;
 880         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 881                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 882         if (ret) {
 883                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 884                         ret);
 885                 return 0;
 886         }
 887
 888         proto_admin = cmd->autoneg == AUTONEG_ENABLE ?
 889                 cpu_to_be32(ptys_adv) :
 890                 speed_set_ptys_admin(priv, speed,
 891                                      ptys_reg.eth_proto_cap);
 892
 893         proto_admin &= ptys_reg.eth_proto_cap;
 894         if (!proto_admin) {
 895                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 896                 return -EINVAL; /* nothing to change due to bad input */
 897         }
 898
 899         if (proto_admin == ptys_reg.eth_proto_admin)
 900                 return 0; /* Nothing to change */
 901
 902         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 903                be32_to_cpu(proto_admin));
 904
 905         ptys_reg.eth_proto_admin = proto_admin;
 906         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 907                                    &ptys_reg);
 908         if (ret) {
 909                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 910                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 911                 return ret;
 912         }
 913
 914         mutex_lock(&priv->mdev->state_lock);
 915         if (priv->port_up) {
 916                 en_warn(priv, "Port link mode changed, restarting port...\n");
 917                 mlx4_en_stop_port(dev, 1);
 918                 if (mlx4_en_start_port(dev))
 919                         en_err(priv, "Failed restarting port %d\n", priv->port);
 920         }
 921         mutex_unlock(&priv->mdev->state_lock);
 922         return 0;
 923 }
 924
 925 static int mlx4_en_get_coalesce(struct net_device *dev,
 926                               struct ethtool_coalesce *coal)
 927 {
 928         struct mlx4_en_priv *priv = netdev_priv(dev);
 929
 930         coal->tx_coalesce_usecs = priv->tx_usecs;
 931         coal->tx_max_coalesced_frames = priv->tx_frames;
 932         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 933
 934         coal->rx_coalesce_usecs = priv->rx_usecs;
 935         coal->rx_max_coalesced_frames = priv->rx_frames;
 936
 937         coal->pkt_rate_low = priv->pkt_rate_low;
 938         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 939         coal->pkt_rate_high = priv->pkt_rate_high;
 940         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 941         coal->rate_sample_interval = priv->sample_interval;
 942         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 943
 944         return 0;
 945 }
 946
 947 static int mlx4_en_set_coalesce(struct net_device *dev,
 948                               struct ethtool_coalesce *coal)
 949 {
 950         struct mlx4_en_priv *priv = netdev_priv(dev);
 951
 952         if (!coal->tx_max_coalesced_frames_irq)
 953                 return -EINVAL;
 954
 955         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 956                            MLX4_EN_AUTO_CONF) ?
 957                                 MLX4_EN_RX_COAL_TARGET :
 958                                 coal->rx_max_coalesced_frames;
 959         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 960                           MLX4_EN_AUTO_CONF) ?
 961                                 MLX4_EN_RX_COAL_TIME :
 962                                 coal->rx_coalesce_usecs;
 963
 964         /* Setting TX coalescing parameters */
 965         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
 966             coal->tx_max_coalesced_frames != priv->tx_frames) {
 967                 priv->tx_usecs = coal->tx_coalesce_usecs;
 968                 priv->tx_frames = coal->tx_max_coalesced_frames;
 969         }
 970
 971         /* Set adaptive coalescing params */
 972         priv->pkt_rate_low = coal->pkt_rate_low;
 973         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
 974         priv->pkt_rate_high = coal->pkt_rate_high;
 975         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
 976         priv->sample_interval = coal->rate_sample_interval;
 977         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
 978         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
 979
 980         return mlx4_en_moderation_update(priv);
 981 }
 982
 983 static int mlx4_en_set_pauseparam(struct net_device *dev,
 984                                 struct ethtool_pauseparam *pause)
 985 {
 986         struct mlx4_en_priv *priv = netdev_priv(dev);
 987         struct mlx4_en_dev *mdev = priv->mdev;
 988         int err;
 989
 990         if (pause->autoneg)
 991                 return -EINVAL;
 992
 993         priv->prof->tx_pause = pause->tx_pause != 0;
 994         priv->prof->rx_pause = pause->rx_pause != 0;
 995         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
 996                                     priv->rx_skb_size + ETH_FCS_LEN,
 997                                     priv->prof->tx_pause,
 998                                     priv->prof->tx_ppp,
 999                                     priv->prof->rx_pause,
1000                                     priv->prof->rx_ppp);
1001         if (err)
1002                 en_err(priv, "Failed setting pause params\n");
1003         else
1004                 mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1005                                                 priv->prof->rx_ppp,
1006                                                 priv->prof->rx_pause,
1007                                                 priv->prof->tx_ppp,
1008                                                 priv->prof->tx_pause);
1009
1010         return err;
1011 }
1012
1013 static void mlx4_en_get_pauseparam(struct net_device *dev,
1014                                  struct ethtool_pauseparam *pause)
1015 {
1016         struct mlx4_en_priv *priv = netdev_priv(dev);
1017
1018         pause->tx_pause = priv->prof->tx_pause;
1019         pause->rx_pause = priv->prof->rx_pause;
1020 }
1021
1022 static int mlx4_en_set_ringparam(struct net_device *dev,
1023                                  struct ethtool_ringparam *param)
1024 {
1025         struct mlx4_en_priv *priv = netdev_priv(dev);
1026         struct mlx4_en_dev *mdev = priv->mdev;
1027         u32 rx_size, tx_size;
1028         int port_up = 0;
1029         int err = 0;
1030
1031         if (param->rx_jumbo_pending || param->rx_mini_pending)
1032                 return -EINVAL;
1033
1034         rx_size = roundup_pow_of_two(param->rx_pending);
1035         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1036         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1037         tx_size = roundup_pow_of_two(param->tx_pending);
1038         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1039         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1040
1041         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1042                                         priv->rx_ring[0]->size) &&
1043             tx_size == priv->tx_ring[0]->size)
1044                 return 0;
1045
1046         mutex_lock(&mdev->state_lock);
1047         if (priv->port_up) {
1048                 port_up = 1;
1049                 mlx4_en_stop_port(dev, 1);
1050         }
1051
1052         mlx4_en_free_resources(priv);
1053
1054         priv->prof->tx_ring_size = tx_size;
1055         priv->prof->rx_ring_size = rx_size;
1056
1057         err = mlx4_en_alloc_resources(priv);
1058         if (err) {
1059                 en_err(priv, "Failed reallocating port resources\n");
1060                 goto out;
1061         }
1062         if (port_up) {
1063                 err = mlx4_en_start_port(dev);
1064                 if (err)
1065                         en_err(priv, "Failed starting port\n");
1066         }
1067
1068         err = mlx4_en_moderation_update(priv);
1069
1070 out:
1071         mutex_unlock(&mdev->state_lock);
1072         return err;
1073 }
1074
1075 static void mlx4_en_get_ringparam(struct net_device *dev,
1076                                   struct ethtool_ringparam *param)
1077 {
1078         struct mlx4_en_priv *priv = netdev_priv(dev);
1079
1080         memset(param, 0, sizeof(*param));
1081         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1082         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1083         param->rx_pending = priv->port_up ?
1084                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1085         param->tx_pending = priv->tx_ring[0]->size;
1086 }
1087
1088 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1089 {
1090         struct mlx4_en_priv *priv = netdev_priv(dev);
1091
1092         return priv->rx_ring_num;
1093 }
1094
1095 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1096 {
1097         return MLX4_EN_RSS_KEY_SIZE;
1098 }
1099
1100 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1101 {
1102         struct mlx4_en_priv *priv = netdev_priv(dev);
1103
1104         /* check if requested function is supported by the device */
1105         if ((hfunc == ETH_RSS_HASH_TOP &&
1106              !(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP)) ||
1107             (hfunc == ETH_RSS_HASH_XOR &&
1108              !(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR)))
1109                 return -EINVAL;
1110
1111         priv->rss_hash_fn = hfunc;
1112         if (hfunc == ETH_RSS_HASH_TOP && !(dev->features & NETIF_F_RXHASH))
1113                 en_warn(priv,
1114                         "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1115         if (hfunc == ETH_RSS_HASH_XOR && (dev->features & NETIF_F_RXHASH))
1116                 en_warn(priv,
1117                         "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1118         return 0;
1119 }
1120
1121 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1122                             u8 *hfunc)
1123 {
1124         struct mlx4_en_priv *priv = netdev_priv(dev);
1125         struct mlx4_en_rss_map *rss_map = &priv->rss_map;
1126         int rss_rings;
1127         size_t n = priv->rx_ring_num;
1128         int err = 0;
1129
1130         rss_rings = priv->prof->rss_rings ?: priv->rx_ring_num;
1131         rss_rings = 1 << ilog2(rss_rings);
1132
1133         while (n--) {
1134                 if (!ring_index)
1135                         break;
1136                 ring_index[n] = rss_map->qps[n % rss_rings].qpn -
1137                         rss_map->base_qpn;
1138         }
1139         if (key)
1140                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1141         if (hfunc)
1142                 *hfunc = priv->rss_hash_fn;
1143         return err;
1144 }
1145
1146 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1147                             const u8 *key, const u8 hfunc)
1148 {
1149         struct mlx4_en_priv *priv = netdev_priv(dev);
1150         struct mlx4_en_dev *mdev = priv->mdev;
1151         int port_up = 0;
1152         int err = 0;
1153         int i;
1154         int rss_rings = 0;
1155
1156         /* Calculate RSS table size and make sure flows are spread evenly
1157          * between rings
1158          */
1159         for (i = 0; i < priv->rx_ring_num; i++) {
1160                 if (!ring_index)
1161                         continue;
1162                 if (i > 0 && !ring_index[i] && !rss_rings)
1163                         rss_rings = i;
1164
1165                 if (ring_index[i] != (i % (rss_rings ?: priv->rx_ring_num)))
1166                         return -EINVAL;
1167         }
1168
1169         if (!rss_rings)
1170                 rss_rings = priv->rx_ring_num;
1171
1172         /* RSS table size must be an order of 2 */
1173         if (!is_power_of_2(rss_rings))
1174                 return -EINVAL;
1175
1176         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1177                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1178                 if (err)
1179                         return err;
1180         }
1181
1182         mutex_lock(&mdev->state_lock);
1183         if (priv->port_up) {
1184                 port_up = 1;
1185                 mlx4_en_stop_port(dev, 1);
1186         }
1187
1188         if (ring_index)
1189                 priv->prof->rss_rings = rss_rings;
1190         if (key)
1191                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1192
1193         if (port_up) {
1194                 err = mlx4_en_start_port(dev);
1195                 if (err)
1196                         en_err(priv, "Failed starting port\n");
1197         }
1198
1199         mutex_unlock(&mdev->state_lock);
1200         return err;
1201 }
1202
1203 #define all_zeros_or_all_ones(field)            \
1204         ((field) == 0 || (field) == (__force typeof(field))-1)
1205
1206 static int mlx4_en_validate_flow(struct net_device *dev,
1207                                  struct ethtool_rxnfc *cmd)
1208 {
1209         struct ethtool_usrip4_spec *l3_mask;
1210         struct ethtool_tcpip4_spec *l4_mask;
1211         struct ethhdr *eth_mask;
1212
1213         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1214                 return -EINVAL;
1215
1216         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1217                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1218                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1219                         return -EINVAL;
1220         }
1221
1222         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1223         case TCP_V4_FLOW:
1224         case UDP_V4_FLOW:
1225                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1226                         return -EINVAL;
1227                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1228                 /* don't allow mask which isn't all 0 or 1 */
1229                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1230                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1231                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1232                     !all_zeros_or_all_ones(l4_mask->pdst))
1233                         return -EINVAL;
1234                 break;
1235         case IP_USER_FLOW:
1236                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1237                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1238                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1239                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1240                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1241                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1242                         return -EINVAL;
1243                 break;
1244         case ETHER_FLOW:
1245                 eth_mask = &cmd->fs.m_u.ether_spec;
1246                 /* source mac mask must not be set */
1247                 if (!is_zero_ether_addr(eth_mask->h_source))
1248                         return -EINVAL;
1249
1250                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1251                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1252                         return -EINVAL;
1253
1254                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1255                         return -EINVAL;
1256                 break;
1257         default:
1258                 return -EINVAL;
1259         }
1260
1261         if ((cmd->fs.flow_type & FLOW_EXT)) {
1262                 if (cmd->fs.m_ext.vlan_etype ||
1263                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1264                       0 ||
1265                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1266                       cpu_to_be16(VLAN_VID_MASK)))
1267                         return -EINVAL;
1268
1269                 if (cmd->fs.m_ext.vlan_tci) {
1270                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1271                                 return -EINVAL;
1272
1273                 }
1274         }
1275
1276         return 0;
1277 }
1278
1279 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1280                                         struct list_head *rule_list_h,
1281                                         struct mlx4_spec_list *spec_l2,
1282                                         unsigned char *mac)
1283 {
1284         int err = 0;
1285         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1286
1287         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1288         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1289         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1290
1291         if ((cmd->fs.flow_type & FLOW_EXT) &&
1292             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1293                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1294                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1295         }
1296
1297         list_add_tail(&spec_l2->list, rule_list_h);
1298
1299         return err;
1300 }
1301
1302 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1303                                                 struct ethtool_rxnfc *cmd,
1304                                                 struct list_head *rule_list_h,
1305                                                 struct mlx4_spec_list *spec_l2,
1306                                                 __be32 ipv4_dst)
1307 {
1308 #ifdef CONFIG_INET
1309         unsigned char mac[ETH_ALEN];
1310
1311         if (!ipv4_is_multicast(ipv4_dst)) {
1312                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1313                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1314                 else
1315                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1316         } else {
1317                 ip_eth_mc_map(ipv4_dst, mac);
1318         }
1319
1320         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1321 #else
1322         return -EINVAL;
1323 #endif
1324 }
1325
1326 static int add_ip_rule(struct mlx4_en_priv *priv,
1327                        struct ethtool_rxnfc *cmd,
1328                        struct list_head *list_h)
1329 {
1330         int err;
1331         struct mlx4_spec_list *spec_l2 = NULL;
1332         struct mlx4_spec_list *spec_l3 = NULL;
1333         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1334
1335         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1336         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1337         if (!spec_l2 || !spec_l3) {
1338                 err = -ENOMEM;
1339                 goto free_spec;
1340         }
1341
1342         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1343                                                    cmd->fs.h_u.
1344                                                    usr_ip4_spec.ip4dst);
1345         if (err)
1346                 goto free_spec;
1347         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1348         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1349         if (l3_mask->ip4src)
1350                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1351         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1352         if (l3_mask->ip4dst)
1353                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1354         list_add_tail(&spec_l3->list, list_h);
1355
1356         return 0;
1357
1358 free_spec:
1359         kfree(spec_l2);
1360         kfree(spec_l3);
1361         return err;
1362 }
1363
1364 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1365                              struct ethtool_rxnfc *cmd,
1366                              struct list_head *list_h, int proto)
1367 {
1368         int err;
1369         struct mlx4_spec_list *spec_l2 = NULL;
1370         struct mlx4_spec_list *spec_l3 = NULL;
1371         struct mlx4_spec_list *spec_l4 = NULL;
1372         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1373
1374         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1375         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1376         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1377         if (!spec_l2 || !spec_l3 || !spec_l4) {
1378                 err = -ENOMEM;
1379                 goto free_spec;
1380         }
1381
1382         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1383
1384         if (proto == TCP_V4_FLOW) {
1385                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1386                                                            spec_l2,
1387                                                            cmd->fs.h_u.
1388                                                            tcp_ip4_spec.ip4dst);
1389                 if (err)
1390                         goto free_spec;
1391                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1392                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1393                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1394                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1395                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1396         } else {
1397                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1398                                                            spec_l2,
1399                                                            cmd->fs.h_u.
1400                                                            udp_ip4_spec.ip4dst);
1401                 if (err)
1402                         goto free_spec;
1403                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1404                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1405                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1406                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1407                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1408         }
1409
1410         if (l4_mask->ip4src)
1411                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1412         if (l4_mask->ip4dst)
1413                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1414
1415         if (l4_mask->psrc)
1416                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1417         if (l4_mask->pdst)
1418                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1419
1420         list_add_tail(&spec_l3->list, list_h);
1421         list_add_tail(&spec_l4->list, list_h);
1422
1423         return 0;
1424
1425 free_spec:
1426         kfree(spec_l2);
1427         kfree(spec_l3);
1428         kfree(spec_l4);
1429         return err;
1430 }
1431
1432 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1433                                              struct ethtool_rxnfc *cmd,
1434                                              struct list_head *rule_list_h)
1435 {
1436         int err;
1437         struct ethhdr *eth_spec;
1438         struct mlx4_spec_list *spec_l2;
1439         struct mlx4_en_priv *priv = netdev_priv(dev);
1440
1441         err = mlx4_en_validate_flow(dev, cmd);
1442         if (err)
1443                 return err;
1444
1445         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1446         case ETHER_FLOW:
1447                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1448                 if (!spec_l2)
1449                         return -ENOMEM;
1450
1451                 eth_spec = &cmd->fs.h_u.ether_spec;
1452                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1453                                              &eth_spec->h_dest[0]);
1454                 spec_l2->eth.ether_type = eth_spec->h_proto;
1455                 if (eth_spec->h_proto)
1456                         spec_l2->eth.ether_type_enable = 1;
1457                 break;
1458         case IP_USER_FLOW:
1459                 err = add_ip_rule(priv, cmd, rule_list_h);
1460                 break;
1461         case TCP_V4_FLOW:
1462                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1463                 break;
1464         case UDP_V4_FLOW:
1465                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1466                 break;
1467         }
1468
1469         return err;
1470 }
1471
1472 static int mlx4_en_flow_replace(struct net_device *dev,
1473                                 struct ethtool_rxnfc *cmd)
1474 {
1475         int err;
1476         struct mlx4_en_priv *priv = netdev_priv(dev);
1477         struct ethtool_flow_id *loc_rule;
1478         struct mlx4_spec_list *spec, *tmp_spec;
1479         u32 qpn;
1480         u64 reg_id;
1481
1482         struct mlx4_net_trans_rule rule = {
1483                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1484                 .exclusive = 0,
1485                 .allow_loopback = 1,
1486                 .promisc_mode = MLX4_FS_REGULAR,
1487         };
1488
1489         rule.port = priv->port;
1490         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1491         INIT_LIST_HEAD(&rule.list);
1492
1493         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1494         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1495                 qpn = priv->drop_qp.qpn;
1496         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1497                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1498         } else {
1499                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1500                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1501                                 cmd->fs.ring_cookie);
1502                         return -EINVAL;
1503                 }
1504                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1505                 if (!qpn) {
1506                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1507                                 cmd->fs.ring_cookie);
1508                         return -EINVAL;
1509                 }
1510         }
1511         rule.qpn = qpn;
1512         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1513         if (err)
1514                 goto out_free_list;
1515
1516         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1517         if (loc_rule->id) {
1518                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1519                 if (err) {
1520                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1521                                cmd->fs.location, loc_rule->id);
1522                         goto out_free_list;
1523                 }
1524                 loc_rule->id = 0;
1525                 memset(&loc_rule->flow_spec, 0,
1526                        sizeof(struct ethtool_rx_flow_spec));
1527                 list_del(&loc_rule->list);
1528         }
1529         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1530         if (err) {
1531                 en_err(priv, "Fail to attach network rule at location %d\n",
1532                        cmd->fs.location);
1533                 goto out_free_list;
1534         }
1535         loc_rule->id = reg_id;
1536         memcpy(&loc_rule->flow_spec, &cmd->fs,
1537                sizeof(struct ethtool_rx_flow_spec));
1538         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1539
1540 out_free_list:
1541         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1542                 list_del(&spec->list);
1543                 kfree(spec);
1544         }
1545         return err;
1546 }
1547
1548 static int mlx4_en_flow_detach(struct net_device *dev,
1549                                struct ethtool_rxnfc *cmd)
1550 {
1551         int err = 0;
1552         struct ethtool_flow_id *rule;
1553         struct mlx4_en_priv *priv = netdev_priv(dev);
1554
1555         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1556                 return -EINVAL;
1557
1558         rule = &priv->ethtool_rules[cmd->fs.location];
1559         if (!rule->id) {
1560                 err =  -ENOENT;
1561                 goto out;
1562         }
1563
1564         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1565         if (err) {
1566                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1567                        cmd->fs.location, rule->id);
1568                 goto out;
1569         }
1570         rule->id = 0;
1571         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1572         list_del(&rule->list);
1573 out:
1574         return err;
1575
1576 }
1577
1578 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1579                             int loc)
1580 {
1581         int err = 0;
1582         struct ethtool_flow_id *rule;
1583         struct mlx4_en_priv *priv = netdev_priv(dev);
1584
1585         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1586                 return -EINVAL;
1587
1588         rule = &priv->ethtool_rules[loc];
1589         if (rule->id)
1590                 memcpy(&cmd->fs, &rule->flow_spec,
1591                        sizeof(struct ethtool_rx_flow_spec));
1592         else
1593                 err = -ENOENT;
1594
1595         return err;
1596 }
1597
1598 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1599 {
1600
1601         int i, res = 0;
1602         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1603                 if (priv->ethtool_rules[i].id)
1604                         res++;
1605         }
1606         return res;
1607
1608 }
1609
1610 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1611                              u32 *rule_locs)
1612 {
1613         struct mlx4_en_priv *priv = netdev_priv(dev);
1614         struct mlx4_en_dev *mdev = priv->mdev;
1615         int err = 0;
1616         int i = 0, priority = 0;
1617
1618         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1619              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1620              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1621             (mdev->dev->caps.steering_mode !=
1622              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1623                 return -EINVAL;
1624
1625         switch (cmd->cmd) {
1626         case ETHTOOL_GRXRINGS:
1627                 cmd->data = priv->rx_ring_num;
1628                 break;
1629         case ETHTOOL_GRXCLSRLCNT:
1630                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1631                 break;
1632         case ETHTOOL_GRXCLSRULE:
1633                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1634                 break;
1635         case ETHTOOL_GRXCLSRLALL:
1636                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1637                         err = mlx4_en_get_flow(dev, cmd, i);
1638                         if (!err)
1639                                 rule_locs[priority++] = i;
1640                         i++;
1641                 }
1642                 err = 0;
1643                 break;
1644         default:
1645                 err = -EOPNOTSUPP;
1646                 break;
1647         }
1648
1649         return err;
1650 }
1651
1652 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1653 {
1654         int err = 0;
1655         struct mlx4_en_priv *priv = netdev_priv(dev);
1656         struct mlx4_en_dev *mdev = priv->mdev;
1657
1658         if (mdev->dev->caps.steering_mode !=
1659             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1660                 return -EINVAL;
1661
1662         switch (cmd->cmd) {
1663         case ETHTOOL_SRXCLSRLINS:
1664                 err = mlx4_en_flow_replace(dev, cmd);
1665                 break;
1666         case ETHTOOL_SRXCLSRLDEL:
1667                 err = mlx4_en_flow_detach(dev, cmd);
1668                 break;
1669         default:
1670                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1671                 return -EINVAL;
1672         }
1673
1674         return err;
1675 }
1676
1677 static void mlx4_en_get_channels(struct net_device *dev,
1678                                  struct ethtool_channels *channel)
1679 {
1680         struct mlx4_en_priv *priv = netdev_priv(dev);
1681
1682         memset(channel, 0, sizeof(*channel));
1683
1684         channel->max_rx = MAX_RX_RINGS;
1685         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1686
1687         channel->rx_count = priv->rx_ring_num;
1688         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1689 }
1690
1691 static int mlx4_en_set_channels(struct net_device *dev,
1692                                 struct ethtool_channels *channel)
1693 {
1694         struct mlx4_en_priv *priv = netdev_priv(dev);
1695         struct mlx4_en_dev *mdev = priv->mdev;
1696         int port_up = 0;
1697         int err = 0;
1698
1699         if (channel->other_count || channel->combined_count ||
1700             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1701             channel->rx_count > MAX_RX_RINGS ||
1702             !channel->tx_count || !channel->rx_count)
1703                 return -EINVAL;
1704
1705         mutex_lock(&mdev->state_lock);
1706         if (priv->port_up) {
1707                 port_up = 1;
1708                 mlx4_en_stop_port(dev, 1);
1709         }
1710
1711         mlx4_en_free_resources(priv);
1712
1713         priv->num_tx_rings_p_up = channel->tx_count;
1714         priv->tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1715         priv->rx_ring_num = channel->rx_count;
1716
1717         err = mlx4_en_alloc_resources(priv);
1718         if (err) {
1719                 en_err(priv, "Failed reallocating port resources\n");
1720                 goto out;
1721         }
1722
1723         netif_set_real_num_tx_queues(dev, priv->tx_ring_num);
1724         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1725
1726         if (dev->num_tc)
1727                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1728
1729         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1730         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1731
1732         if (port_up) {
1733                 err = mlx4_en_start_port(dev);
1734                 if (err)
1735                         en_err(priv, "Failed starting port\n");
1736         }
1737
1738         err = mlx4_en_moderation_update(priv);
1739
1740 out:
1741         mutex_unlock(&mdev->state_lock);
1742         return err;
1743 }
1744
1745 static int mlx4_en_get_ts_info(struct net_device *dev,
1746                                struct ethtool_ts_info *info)
1747 {
1748         struct mlx4_en_priv *priv = netdev_priv(dev);
1749         struct mlx4_en_dev *mdev = priv->mdev;
1750         int ret;
1751
1752         ret = ethtool_op_get_ts_info(dev, info);
1753         if (ret)
1754                 return ret;
1755
1756         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1757                 info->so_timestamping |=
1758                         SOF_TIMESTAMPING_TX_HARDWARE |
1759                         SOF_TIMESTAMPING_RX_HARDWARE |
1760                         SOF_TIMESTAMPING_RAW_HARDWARE;
1761
1762                 info->tx_types =
1763                         (1 << HWTSTAMP_TX_OFF) |
1764                         (1 << HWTSTAMP_TX_ON);
1765
1766                 info->rx_filters =
1767                         (1 << HWTSTAMP_FILTER_NONE) |
1768                         (1 << HWTSTAMP_FILTER_ALL);
1769
1770                 if (mdev->ptp_clock)
1771                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1772         }
1773
1774         return ret;
1775 }
1776
1777 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1778 {
1779         struct mlx4_en_priv *priv = netdev_priv(dev);
1780         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1781         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1782         int i;
1783
1784         if (bf_enabled_new == bf_enabled_old)
1785                 return 0; /* Nothing to do */
1786
1787         if (bf_enabled_new) {
1788                 bool bf_supported = true;
1789
1790                 for (i = 0; i < priv->tx_ring_num; i++)
1791                         bf_supported &= priv->tx_ring[i]->bf_alloced;
1792
1793                 if (!bf_supported) {
1794                         en_err(priv, "BlueFlame is not supported\n");
1795                         return -EINVAL;
1796                 }
1797
1798                 priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1799         } else {
1800                 priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1801         }
1802
1803         for (i = 0; i < priv->tx_ring_num; i++)
1804                 priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1805
1806         en_info(priv, "BlueFlame %s\n",
1807                 bf_enabled_new ?  "Enabled" : "Disabled");
1808
1809         return 0;
1810 }
1811
1812 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1813 {
1814         struct mlx4_en_priv *priv = netdev_priv(dev);
1815
1816         return priv->pflags;
1817 }
1818
1819 static int mlx4_en_get_tunable(struct net_device *dev,
1820                                const struct ethtool_tunable *tuna,
1821                                void *data)
1822 {
1823         const struct mlx4_en_priv *priv = netdev_priv(dev);
1824         int ret = 0;
1825
1826         switch (tuna->id) {
1827         case ETHTOOL_TX_COPYBREAK:
1828                 *(u32 *)data = priv->prof->inline_thold;
1829                 break;
1830         default:
1831                 ret = -EINVAL;
1832                 break;
1833         }
1834
1835         return ret;
1836 }
1837
1838 static int mlx4_en_set_tunable(struct net_device *dev,
1839                                const struct ethtool_tunable *tuna,
1840                                const void *data)
1841 {
1842         struct mlx4_en_priv *priv = netdev_priv(dev);
1843         int val, ret = 0;
1844
1845         switch (tuna->id) {
1846         case ETHTOOL_TX_COPYBREAK:
1847                 val = *(u32 *)data;
1848                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1849                         ret = -EINVAL;
1850                 else
1851                         priv->prof->inline_thold = val;
1852                 break;
1853         default:
1854                 ret = -EINVAL;
1855                 break;
1856         }
1857
1858         return ret;
1859 }
1860
1861 static int mlx4_en_get_module_info(struct net_device *dev,
1862                                    struct ethtool_modinfo *modinfo)
1863 {
1864         struct mlx4_en_priv *priv = netdev_priv(dev);
1865         struct mlx4_en_dev *mdev = priv->mdev;
1866         int ret;
1867         u8 data[4];
1868
1869         /* Read first 2 bytes to get Module & REV ID */
1870         ret = mlx4_get_module_info(mdev->dev, priv->port,
1871                                    0/*offset*/, 2/*size*/, data);
1872         if (ret < 2)
1873                 return -EIO;
1874
1875         switch (data[0] /* identifier */) {
1876         case MLX4_MODULE_ID_QSFP:
1877                 modinfo->type = ETH_MODULE_SFF_8436;
1878                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1879                 break;
1880         case MLX4_MODULE_ID_QSFP_PLUS:
1881                 if (data[1] >= 0x3) { /* revision id */
1882                         modinfo->type = ETH_MODULE_SFF_8636;
1883                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1884                 } else {
1885                         modinfo->type = ETH_MODULE_SFF_8436;
1886                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1887                 }
1888                 break;
1889         case MLX4_MODULE_ID_QSFP28:
1890                 modinfo->type = ETH_MODULE_SFF_8636;
1891                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1892                 break;
1893         case MLX4_MODULE_ID_SFP:
1894                 modinfo->type = ETH_MODULE_SFF_8472;
1895                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1896                 break;
1897         default:
1898                 return -ENOSYS;
1899         }
1900
1901         return 0;
1902 }
1903
1904 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1905                                      struct ethtool_eeprom *ee,
1906                                      u8 *data)
1907 {
1908         struct mlx4_en_priv *priv = netdev_priv(dev);
1909         struct mlx4_en_dev *mdev = priv->mdev;
1910         int offset = ee->offset;
1911         int i = 0, ret;
1912
1913         if (ee->len == 0)
1914                 return -EINVAL;
1915
1916         memset(data, 0, ee->len);
1917
1918         while (i < ee->len) {
1919                 en_dbg(DRV, priv,
1920                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1921                        i, offset, ee->len - i);
1922
1923                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1924                                            offset, ee->len - i, data + i);
1925
1926                 if (!ret) /* Done reading */
1927                         return 0;
1928
1929                 if (ret < 0) {
1930                         en_err(priv,
1931                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
1932                                i, offset, ee->len - i, ret);
1933                         return 0;
1934                 }
1935
1936                 i += ret;
1937                 offset += ret;
1938         }
1939         return 0;
1940 }
1941
1942 static int mlx4_en_set_phys_id(struct net_device *dev,
1943                                enum ethtool_phys_id_state state)
1944 {
1945         int err;
1946         u16 beacon_duration;
1947         struct mlx4_en_priv *priv = netdev_priv(dev);
1948         struct mlx4_en_dev *mdev = priv->mdev;
1949
1950         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
1951                 return -EOPNOTSUPP;
1952
1953         switch (state) {
1954         case ETHTOOL_ID_ACTIVE:
1955                 beacon_duration = PORT_BEACON_MAX_LIMIT;
1956                 break;
1957         case ETHTOOL_ID_INACTIVE:
1958                 beacon_duration = 0;
1959                 break;
1960         default:
1961                 return -EOPNOTSUPP;
1962         }
1963
1964         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
1965         return err;
1966 }
1967
1968 const struct ethtool_ops mlx4_en_ethtool_ops = {
1969         .get_drvinfo = mlx4_en_get_drvinfo,
1970         .get_settings = mlx4_en_get_settings,
1971         .set_settings = mlx4_en_set_settings,
1972         .get_link = ethtool_op_get_link,
1973         .get_strings = mlx4_en_get_strings,
1974         .get_sset_count = mlx4_en_get_sset_count,
1975         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
1976         .self_test = mlx4_en_self_test,
1977         .set_phys_id = mlx4_en_set_phys_id,
1978         .get_wol = mlx4_en_get_wol,
1979         .set_wol = mlx4_en_set_wol,
1980         .get_msglevel = mlx4_en_get_msglevel,
1981         .set_msglevel = mlx4_en_set_msglevel,
1982         .get_coalesce = mlx4_en_get_coalesce,
1983         .set_coalesce = mlx4_en_set_coalesce,
1984         .get_pauseparam = mlx4_en_get_pauseparam,
1985         .set_pauseparam = mlx4_en_set_pauseparam,
1986         .get_ringparam = mlx4_en_get_ringparam,
1987         .set_ringparam = mlx4_en_set_ringparam,
1988         .get_rxnfc = mlx4_en_get_rxnfc,
1989         .set_rxnfc = mlx4_en_set_rxnfc,
1990         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
1991         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
1992         .get_rxfh = mlx4_en_get_rxfh,
1993         .set_rxfh = mlx4_en_set_rxfh,
1994         .get_channels = mlx4_en_get_channels,
1995         .set_channels = mlx4_en_set_channels,
1996         .get_ts_info = mlx4_en_get_ts_info,
1997         .set_priv_flags = mlx4_en_set_priv_flags,
1998         .get_priv_flags = mlx4_en_get_priv_flags,
1999         .get_tunable            = mlx4_en_get_tunable,
2000         .set_tunable            = mlx4_en_set_tunable,
2001         .get_module_info = mlx4_en_get_module_info,
2002         .get_module_eeprom = mlx4_en_get_module_eeprom
2003 };
2004
2005
2006
2007
2008