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 int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
  51 {
  52         int i;
  53         int err = 0;
  54
  55         for (i = 0; i < priv->tx_ring_num; i++) {
  56                 priv->tx_cq[i]->moder_cnt = priv->tx_frames;
  57                 priv->tx_cq[i]->moder_time = priv->tx_usecs;
  58                 if (priv->port_up) {
  59                         err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
  60                         if (err)
  61                                 return err;
  62                 }
  63         }
  64
  65         if (priv->adaptive_rx_coal)
  66                 return 0;
  67
  68         for (i = 0; i < priv->rx_ring_num; i++) {
  69                 priv->rx_cq[i]->moder_cnt = priv->rx_frames;
  70                 priv->rx_cq[i]->moder_time = priv->rx_usecs;
  71                 priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
  72                 if (priv->port_up) {
  73                         err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
  74                         if (err)
  75                                 return err;
  76                 }
  77         }
  78
  79         return err;
  80 }
  81
  82 static void
  83 mlx4_en_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
  84 {
  85         struct mlx4_en_priv *priv = netdev_priv(dev);
  86         struct mlx4_en_dev *mdev = priv->mdev;
  87
  88         strlcpy(drvinfo->driver, DRV_NAME, sizeof(drvinfo->driver));
  89         strlcpy(drvinfo->version, DRV_VERSION " (" DRV_RELDATE ")",
  90                 sizeof(drvinfo->version));
  91         snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
  92                 "%d.%d.%d",
  93                 (u16) (mdev->dev->caps.fw_ver >> 32),
  94                 (u16) ((mdev->dev->caps.fw_ver >> 16) & 0xffff),
  95                 (u16) (mdev->dev->caps.fw_ver & 0xffff));
  96         strlcpy(drvinfo->bus_info, pci_name(mdev->dev->persist->pdev),
  97                 sizeof(drvinfo->bus_info));
  98 }
  99
 100 static const char mlx4_en_priv_flags[][ETH_GSTRING_LEN] = {
 101         "blueflame",
 102         "phv-bit"
 103 };
 104
 105 static const char main_strings[][ETH_GSTRING_LEN] = {
 106         /* main statistics */
 107         "rx_packets", "tx_packets", "rx_bytes", "tx_bytes", "rx_errors",
 108         "tx_errors", "rx_dropped", "tx_dropped", "multicast", "collisions",
 109         "rx_length_errors", "rx_over_errors", "rx_crc_errors",
 110         "rx_frame_errors", "rx_fifo_errors", "rx_missed_errors",
 111         "tx_aborted_errors", "tx_carrier_errors", "tx_fifo_errors",
 112         "tx_heartbeat_errors", "tx_window_errors",
 113
 114         /* port statistics */
 115         "tso_packets",
 116         "xmit_more",
 117         "queue_stopped", "wake_queue", "tx_timeout", "rx_alloc_failed",
 118         "rx_csum_good", "rx_csum_none", "rx_csum_complete", "tx_chksum_offload",
 119
 120         /* pf statistics */
 121         "pf_rx_packets",
 122         "pf_rx_bytes",
 123         "pf_tx_packets",
 124         "pf_tx_bytes",
 125
 126         /* priority flow control statistics rx */
 127         "rx_pause_prio_0", "rx_pause_duration_prio_0",
 128         "rx_pause_transition_prio_0",
 129         "rx_pause_prio_1", "rx_pause_duration_prio_1",
 130         "rx_pause_transition_prio_1",
 131         "rx_pause_prio_2", "rx_pause_duration_prio_2",
 132         "rx_pause_transition_prio_2",
 133         "rx_pause_prio_3", "rx_pause_duration_prio_3",
 134         "rx_pause_transition_prio_3",
 135         "rx_pause_prio_4", "rx_pause_duration_prio_4",
 136         "rx_pause_transition_prio_4",
 137         "rx_pause_prio_5", "rx_pause_duration_prio_5",
 138         "rx_pause_transition_prio_5",
 139         "rx_pause_prio_6", "rx_pause_duration_prio_6",
 140         "rx_pause_transition_prio_6",
 141         "rx_pause_prio_7", "rx_pause_duration_prio_7",
 142         "rx_pause_transition_prio_7",
 143
 144         /* flow control statistics rx */
 145         "rx_pause", "rx_pause_duration", "rx_pause_transition",
 146
 147         /* priority flow control statistics tx */
 148         "tx_pause_prio_0", "tx_pause_duration_prio_0",
 149         "tx_pause_transition_prio_0",
 150         "tx_pause_prio_1", "tx_pause_duration_prio_1",
 151         "tx_pause_transition_prio_1",
 152         "tx_pause_prio_2", "tx_pause_duration_prio_2",
 153         "tx_pause_transition_prio_2",
 154         "tx_pause_prio_3", "tx_pause_duration_prio_3",
 155         "tx_pause_transition_prio_3",
 156         "tx_pause_prio_4", "tx_pause_duration_prio_4",
 157         "tx_pause_transition_prio_4",
 158         "tx_pause_prio_5", "tx_pause_duration_prio_5",
 159         "tx_pause_transition_prio_5",
 160         "tx_pause_prio_6", "tx_pause_duration_prio_6",
 161         "tx_pause_transition_prio_6",
 162         "tx_pause_prio_7", "tx_pause_duration_prio_7",
 163         "tx_pause_transition_prio_7",
 164
 165         /* flow control statistics tx */
 166         "tx_pause", "tx_pause_duration", "tx_pause_transition",
 167
 168         /* packet statistics */
 169         "rx_multicast_packets",
 170         "rx_broadcast_packets",
 171         "rx_jabbers",
 172         "rx_in_range_length_error",
 173         "rx_out_range_length_error",
 174         "tx_multicast_packets",
 175         "tx_broadcast_packets",
 176         "rx_prio_0_packets", "rx_prio_0_bytes",
 177         "rx_prio_1_packets", "rx_prio_1_bytes",
 178         "rx_prio_2_packets", "rx_prio_2_bytes",
 179         "rx_prio_3_packets", "rx_prio_3_bytes",
 180         "rx_prio_4_packets", "rx_prio_4_bytes",
 181         "rx_prio_5_packets", "rx_prio_5_bytes",
 182         "rx_prio_6_packets", "rx_prio_6_bytes",
 183         "rx_prio_7_packets", "rx_prio_7_bytes",
 184         "rx_novlan_packets", "rx_novlan_bytes",
 185         "tx_prio_0_packets", "tx_prio_0_bytes",
 186         "tx_prio_1_packets", "tx_prio_1_bytes",
 187         "tx_prio_2_packets", "tx_prio_2_bytes",
 188         "tx_prio_3_packets", "tx_prio_3_bytes",
 189         "tx_prio_4_packets", "tx_prio_4_bytes",
 190         "tx_prio_5_packets", "tx_prio_5_bytes",
 191         "tx_prio_6_packets", "tx_prio_6_bytes",
 192         "tx_prio_7_packets", "tx_prio_7_bytes",
 193         "tx_novlan_packets", "tx_novlan_bytes",
 194
 195 };
 196
 197 static const char mlx4_en_test_names[][ETH_GSTRING_LEN]= {
 198         "Interrupt Test",
 199         "Link Test",
 200         "Speed Test",
 201         "Register Test",
 202         "Loopback Test",
 203 };
 204
 205 static u32 mlx4_en_get_msglevel(struct net_device *dev)
 206 {
 207         return ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable;
 208 }
 209
 210 static void mlx4_en_set_msglevel(struct net_device *dev, u32 val)
 211 {
 212         ((struct mlx4_en_priv *) netdev_priv(dev))->msg_enable = val;
 213 }
 214
 215 static void mlx4_en_get_wol(struct net_device *netdev,
 216                             struct ethtool_wolinfo *wol)
 217 {
 218         struct mlx4_en_priv *priv = netdev_priv(netdev);
 219         int err = 0;
 220         u64 config = 0;
 221         u64 mask;
 222
 223         if ((priv->port < 1) || (priv->port > 2)) {
 224                 en_err(priv, "Failed to get WoL information\n");
 225                 return;
 226         }
 227
 228         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 229                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 230
 231         if (!(priv->mdev->dev->caps.flags & mask)) {
 232                 wol->supported = 0;
 233                 wol->wolopts = 0;
 234                 return;
 235         }
 236
 237         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 238         if (err) {
 239                 en_err(priv, "Failed to get WoL information\n");
 240                 return;
 241         }
 242
 243         if (config & MLX4_EN_WOL_MAGIC)
 244                 wol->supported = WAKE_MAGIC;
 245         else
 246                 wol->supported = 0;
 247
 248         if (config & MLX4_EN_WOL_ENABLED)
 249                 wol->wolopts = WAKE_MAGIC;
 250         else
 251                 wol->wolopts = 0;
 252 }
 253
 254 static int mlx4_en_set_wol(struct net_device *netdev,
 255                             struct ethtool_wolinfo *wol)
 256 {
 257         struct mlx4_en_priv *priv = netdev_priv(netdev);
 258         u64 config = 0;
 259         int err = 0;
 260         u64 mask;
 261
 262         if ((priv->port < 1) || (priv->port > 2))
 263                 return -EOPNOTSUPP;
 264
 265         mask = (priv->port == 1) ? MLX4_DEV_CAP_FLAG_WOL_PORT1 :
 266                 MLX4_DEV_CAP_FLAG_WOL_PORT2;
 267
 268         if (!(priv->mdev->dev->caps.flags & mask))
 269                 return -EOPNOTSUPP;
 270
 271         if (wol->supported & ~WAKE_MAGIC)
 272                 return -EINVAL;
 273
 274         err = mlx4_wol_read(priv->mdev->dev, &config, priv->port);
 275         if (err) {
 276                 en_err(priv, "Failed to get WoL info, unable to modify\n");
 277                 return err;
 278         }
 279
 280         if (wol->wolopts & WAKE_MAGIC) {
 281                 config |= MLX4_EN_WOL_DO_MODIFY | MLX4_EN_WOL_ENABLED |
 282                                 MLX4_EN_WOL_MAGIC;
 283         } else {
 284                 config &= ~(MLX4_EN_WOL_ENABLED | MLX4_EN_WOL_MAGIC);
 285                 config |= MLX4_EN_WOL_DO_MODIFY;
 286         }
 287
 288         err = mlx4_wol_write(priv->mdev->dev, config, priv->port);
 289         if (err)
 290                 en_err(priv, "Failed to set WoL information\n");
 291
 292         return err;
 293 }
 294
 295 struct bitmap_iterator {
 296         unsigned long *stats_bitmap;
 297         unsigned int count;
 298         unsigned int iterator;
 299         bool advance_array; /* if set, force no increments */
 300 };
 301
 302 static inline void bitmap_iterator_init(struct bitmap_iterator *h,
 303                                         unsigned long *stats_bitmap,
 304                                         int count)
 305 {
 306         h->iterator = 0;
 307         h->advance_array = !bitmap_empty(stats_bitmap, count);
 308         h->count = h->advance_array ? bitmap_weight(stats_bitmap, count)
 309                 : count;
 310         h->stats_bitmap = stats_bitmap;
 311 }
 312
 313 static inline int bitmap_iterator_test(struct bitmap_iterator *h)
 314 {
 315         return !h->advance_array ? 1 : test_bit(h->iterator, h->stats_bitmap);
 316 }
 317
 318 static inline int bitmap_iterator_inc(struct bitmap_iterator *h)
 319 {
 320         return h->iterator++;
 321 }
 322
 323 static inline unsigned int
 324 bitmap_iterator_count(struct bitmap_iterator *h)
 325 {
 326         return h->count;
 327 }
 328
 329 static int mlx4_en_get_sset_count(struct net_device *dev, int sset)
 330 {
 331         struct mlx4_en_priv *priv = netdev_priv(dev);
 332         struct bitmap_iterator it;
 333
 334         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 335
 336         switch (sset) {
 337         case ETH_SS_STATS:
 338                 return bitmap_iterator_count(&it) +
 339                         (priv->tx_ring_num * 2) +
 340                         (priv->rx_ring_num * 3);
 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 *)&dev->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_PF_STATS; i++, bitmap_iterator_inc(&it))
 372                 if (bitmap_iterator_test(&it))
 373                         data[index++] =
 374                                 ((unsigned long *)&priv->pf_stats)[i];
 375
 376         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_RX;
 377              i++, bitmap_iterator_inc(&it))
 378                 if (bitmap_iterator_test(&it))
 379                         data[index++] =
 380                                 ((u64 *)&priv->rx_priority_flowstats)[i];
 381
 382         for (i = 0; i < NUM_FLOW_STATS_RX; i++, bitmap_iterator_inc(&it))
 383                 if (bitmap_iterator_test(&it))
 384                         data[index++] = ((u64 *)&priv->rx_flowstats)[i];
 385
 386         for (i = 0; i < NUM_FLOW_PRIORITY_STATS_TX;
 387              i++, bitmap_iterator_inc(&it))
 388                 if (bitmap_iterator_test(&it))
 389                         data[index++] =
 390                                 ((u64 *)&priv->tx_priority_flowstats)[i];
 391
 392         for (i = 0; i < NUM_FLOW_STATS_TX; i++, bitmap_iterator_inc(&it))
 393                 if (bitmap_iterator_test(&it))
 394                         data[index++] = ((u64 *)&priv->tx_flowstats)[i];
 395
 396         for (i = 0; i < NUM_PKT_STATS; i++, bitmap_iterator_inc(&it))
 397                 if (bitmap_iterator_test(&it))
 398                         data[index++] = ((unsigned long *)&priv->pkstats)[i];
 399
 400         for (i = 0; i < priv->tx_ring_num; i++) {
 401                 data[index++] = priv->tx_ring[i]->packets;
 402                 data[index++] = priv->tx_ring[i]->bytes;
 403         }
 404         for (i = 0; i < priv->rx_ring_num; i++) {
 405                 data[index++] = priv->rx_ring[i]->packets;
 406                 data[index++] = priv->rx_ring[i]->bytes;
 407                 data[index++] = priv->rx_ring[i]->dropped;
 408         }
 409         spin_unlock_bh(&priv->stats_lock);
 410
 411 }
 412
 413 static void mlx4_en_self_test(struct net_device *dev,
 414                               struct ethtool_test *etest, u64 *buf)
 415 {
 416         mlx4_en_ex_selftest(dev, &etest->flags, buf);
 417 }
 418
 419 static void mlx4_en_get_strings(struct net_device *dev,
 420                                 uint32_t stringset, uint8_t *data)
 421 {
 422         struct mlx4_en_priv *priv = netdev_priv(dev);
 423         int index = 0;
 424         int i, strings = 0;
 425         struct bitmap_iterator it;
 426
 427         bitmap_iterator_init(&it, priv->stats_bitmap.bitmap, NUM_ALL_STATS);
 428
 429         switch (stringset) {
 430         case ETH_SS_TEST:
 431                 for (i = 0; i < MLX4_EN_NUM_SELF_TEST - 2; i++)
 432                         strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 433                 if (priv->mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UC_LOOPBACK)
 434                         for (; i < MLX4_EN_NUM_SELF_TEST; i++)
 435                                 strcpy(data + i * ETH_GSTRING_LEN, mlx4_en_test_names[i]);
 436                 break;
 437
 438         case ETH_SS_STATS:
 439                 /* Add main counters */
 440                 for (i = 0; i < NUM_MAIN_STATS; i++, strings++,
 441                      bitmap_iterator_inc(&it))
 442                         if (bitmap_iterator_test(&it))
 443                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 444                                        main_strings[strings]);
 445
 446                 for (i = 0; i < NUM_PORT_STATS; i++, strings++,
 447                      bitmap_iterator_inc(&it))
 448                         if (bitmap_iterator_test(&it))
 449                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 450                                        main_strings[strings]);
 451
 452                 for (i = 0; i < NUM_PF_STATS; i++, strings++,
 453                      bitmap_iterator_inc(&it))
 454                         if (bitmap_iterator_test(&it))
 455                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 456                                        main_strings[strings]);
 457
 458                 for (i = 0; i < NUM_FLOW_STATS; i++, strings++,
 459                      bitmap_iterator_inc(&it))
 460                         if (bitmap_iterator_test(&it))
 461                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 462                                        main_strings[strings]);
 463
 464                 for (i = 0; i < NUM_PKT_STATS; i++, strings++,
 465                      bitmap_iterator_inc(&it))
 466                         if (bitmap_iterator_test(&it))
 467                                 strcpy(data + (index++) * ETH_GSTRING_LEN,
 468                                        main_strings[strings]);
 469
 470                 for (i = 0; i < priv->tx_ring_num; i++) {
 471                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 472                                 "tx%d_packets", i);
 473                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 474                                 "tx%d_bytes", i);
 475                 }
 476                 for (i = 0; i < priv->rx_ring_num; i++) {
 477                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 478                                 "rx%d_packets", i);
 479                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 480                                 "rx%d_bytes", i);
 481                         sprintf(data + (index++) * ETH_GSTRING_LEN,
 482                                 "rx%d_dropped", i);
 483                 }
 484                 break;
 485         case ETH_SS_PRIV_FLAGS:
 486                 for (i = 0; i < ARRAY_SIZE(mlx4_en_priv_flags); i++)
 487                         strcpy(data + i * ETH_GSTRING_LEN,
 488                                mlx4_en_priv_flags[i]);
 489                 break;
 490
 491         }
 492 }
 493
 494 static u32 mlx4_en_autoneg_get(struct net_device *dev)
 495 {
 496         struct mlx4_en_priv *priv = netdev_priv(dev);
 497         struct mlx4_en_dev *mdev = priv->mdev;
 498         u32 autoneg = AUTONEG_DISABLE;
 499
 500         if ((mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_BACKPL_AN_REP) &&
 501             (priv->port_state.flags & MLX4_EN_PORT_ANE))
 502                 autoneg = AUTONEG_ENABLE;
 503
 504         return autoneg;
 505 }
 506
 507 static void ptys2ethtool_update_supported_port(unsigned long *mask,
 508                                                struct mlx4_ptys_reg *ptys_reg)
 509 {
 510         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 511
 512         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 513                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 514                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 515                 __set_bit(ETHTOOL_LINK_MODE_TP_BIT, mask);
 516         } else 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                 __set_bit(ETHTOOL_LINK_MODE_FIBRE_BIT, mask);
 523         } else if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 524                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 525                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 526                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 527                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 528                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 529                 __set_bit(ETHTOOL_LINK_MODE_Backplane_BIT, mask);
 530         }
 531 }
 532
 533 static u32 ptys_get_active_port(struct mlx4_ptys_reg *ptys_reg)
 534 {
 535         u32 eth_proto = be32_to_cpu(ptys_reg->eth_proto_oper);
 536
 537         if (!eth_proto) /* link down */
 538                 eth_proto = be32_to_cpu(ptys_reg->eth_proto_cap);
 539
 540         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_T)
 541                          | MLX4_PROT_MASK(MLX4_1000BASE_T)
 542                          | MLX4_PROT_MASK(MLX4_100BASE_TX))) {
 543                         return PORT_TP;
 544         }
 545
 546         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_SR)
 547                          | MLX4_PROT_MASK(MLX4_56GBASE_SR4)
 548                          | MLX4_PROT_MASK(MLX4_40GBASE_SR4)
 549                          | MLX4_PROT_MASK(MLX4_1000BASE_CX_SGMII))) {
 550                         return PORT_FIBRE;
 551         }
 552
 553         if (eth_proto & (MLX4_PROT_MASK(MLX4_10GBASE_CR)
 554                          | MLX4_PROT_MASK(MLX4_56GBASE_CR4)
 555                          | MLX4_PROT_MASK(MLX4_40GBASE_CR4))) {
 556                         return PORT_DA;
 557         }
 558
 559         if (eth_proto & (MLX4_PROT_MASK(MLX4_56GBASE_KR4)
 560                          | MLX4_PROT_MASK(MLX4_40GBASE_KR4)
 561                          | MLX4_PROT_MASK(MLX4_20GBASE_KR2)
 562                          | MLX4_PROT_MASK(MLX4_10GBASE_KR)
 563                          | MLX4_PROT_MASK(MLX4_10GBASE_KX4)
 564                          | MLX4_PROT_MASK(MLX4_1000BASE_KX))) {
 565                         return PORT_NONE;
 566         }
 567         return PORT_OTHER;
 568 }
 569
 570 #define MLX4_LINK_MODES_SZ \
 571         (FIELD_SIZEOF(struct mlx4_ptys_reg, eth_proto_cap) * 8)
 572
 573 enum ethtool_report {
 574         SUPPORTED = 0,
 575         ADVERTISED = 1,
 576 };
 577
 578 struct ptys2ethtool_config {
 579         __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
 580         __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised);
 581         u32 speed;
 582 };
 583
 584 static unsigned long *ptys2ethtool_link_mode(struct ptys2ethtool_config *cfg,
 585                                              enum ethtool_report report)
 586 {
 587         switch (report) {
 588         case SUPPORTED:
 589                 return cfg->supported;
 590         case ADVERTISED:
 591                 return cfg->advertised;
 592         }
 593         return NULL;
 594 }
 595
 596 #define MLX4_BUILD_PTYS2ETHTOOL_CONFIG(reg_, speed_, ...)               \
 597         ({                                                              \
 598                 struct ptys2ethtool_config *cfg;                        \
 599                 const unsigned int modes[] = { __VA_ARGS__ };           \
 600                 unsigned int i;                                         \
 601                 cfg = &ptys2ethtool_map[reg_];                          \
 602                 cfg->speed = speed_;                                    \
 603                 bitmap_zero(cfg->supported,                             \
 604                             __ETHTOOL_LINK_MODE_MASK_NBITS);            \
 605                 bitmap_zero(cfg->advertised,                            \
 606                             __ETHTOOL_LINK_MODE_MASK_NBITS);            \
 607                 for (i = 0 ; i < ARRAY_SIZE(modes) ; ++i) {             \
 608                         __set_bit(modes[i], cfg->supported);            \
 609                         __set_bit(modes[i], cfg->advertised);           \
 610                 }                                                       \
 611         })
 612
 613 /* Translates mlx4 link mode to equivalent ethtool Link modes/speed */
 614 static struct ptys2ethtool_config ptys2ethtool_map[MLX4_LINK_MODES_SZ];
 615
 616 void __init mlx4_en_init_ptys2ethtool_map(void)
 617 {
 618         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_100BASE_TX, SPEED_100,
 619                                        ETHTOOL_LINK_MODE_100baseT_Full_BIT);
 620         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_T, SPEED_1000,
 621                                        ETHTOOL_LINK_MODE_1000baseT_Full_BIT);
 622         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_CX_SGMII, SPEED_1000,
 623                                        ETHTOOL_LINK_MODE_1000baseX_Full_BIT);
 624         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_1000BASE_KX, SPEED_1000,
 625                                        ETHTOOL_LINK_MODE_1000baseKX_Full_BIT);
 626         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_T, SPEED_10000,
 627                                        ETHTOOL_LINK_MODE_10000baseT_Full_BIT);
 628         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CX4, SPEED_10000,
 629                                        ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
 630         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KX4, SPEED_10000,
 631                                        ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT);
 632         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_KR, SPEED_10000,
 633                                        ETHTOOL_LINK_MODE_10000baseKR_Full_BIT);
 634         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_CR, SPEED_10000,
 635                                        ETHTOOL_LINK_MODE_10000baseCR_Full_BIT);
 636         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_10GBASE_SR, SPEED_10000,
 637                                        ETHTOOL_LINK_MODE_10000baseSR_Full_BIT);
 638         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_20GBASE_KR2, SPEED_20000,
 639                                        ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT,
 640                                        ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT);
 641         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_CR4, SPEED_40000,
 642                                        ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT);
 643         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_KR4, SPEED_40000,
 644                                        ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT);
 645         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_40GBASE_SR4, SPEED_40000,
 646                                        ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT);
 647         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_KR4, SPEED_56000,
 648                                        ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT);
 649         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_CR4, SPEED_56000,
 650                                        ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT);
 651         MLX4_BUILD_PTYS2ETHTOOL_CONFIG(MLX4_56GBASE_SR4, SPEED_56000,
 652                                        ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT);
 653 };
 654
 655 static void ptys2ethtool_update_link_modes(unsigned long *link_modes,
 656                                            u32 eth_proto,
 657                                            enum ethtool_report report)
 658 {
 659         int i;
 660         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 661                 if (eth_proto & MLX4_PROT_MASK(i))
 662                         bitmap_or(link_modes, link_modes,
 663                                   ptys2ethtool_link_mode(&ptys2ethtool_map[i],
 664                                                          report),
 665                                   __ETHTOOL_LINK_MODE_MASK_NBITS);
 666         }
 667 }
 668
 669 static u32 ethtool2ptys_link_modes(const unsigned long *link_modes,
 670                                    enum ethtool_report report)
 671 {
 672         int i;
 673         u32 ptys_modes = 0;
 674
 675         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 676                 if (bitmap_intersects(
 677                             ptys2ethtool_link_mode(&ptys2ethtool_map[i],
 678                                                    report),
 679                             link_modes,
 680                             __ETHTOOL_LINK_MODE_MASK_NBITS))
 681                         ptys_modes |= 1 << i;
 682         }
 683         return ptys_modes;
 684 }
 685
 686 /* Convert actual speed (SPEED_XXX) to ptys link modes */
 687 static u32 speed2ptys_link_modes(u32 speed)
 688 {
 689         int i;
 690         u32 ptys_modes = 0;
 691
 692         for (i = 0; i < MLX4_LINK_MODES_SZ; i++) {
 693                 if (ptys2ethtool_map[i].speed == speed)
 694                         ptys_modes |= 1 << i;
 695         }
 696         return ptys_modes;
 697 }
 698
 699 static int
 700 ethtool_get_ptys_link_ksettings(struct net_device *dev,
 701                                 struct ethtool_link_ksettings *link_ksettings)
 702 {
 703         struct mlx4_en_priv *priv = netdev_priv(dev);
 704         struct mlx4_ptys_reg ptys_reg;
 705         u32 eth_proto;
 706         int ret;
 707
 708         memset(&ptys_reg, 0, sizeof(ptys_reg));
 709         ptys_reg.local_port = priv->port;
 710         ptys_reg.proto_mask = MLX4_PTYS_EN;
 711         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 712                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 713         if (ret) {
 714                 en_warn(priv, "Failed to run mlx4_ACCESS_PTYS_REG status(%x)",
 715                         ret);
 716                 return ret;
 717         }
 718         en_dbg(DRV, priv, "ptys_reg.proto_mask       %x\n",
 719                ptys_reg.proto_mask);
 720         en_dbg(DRV, priv, "ptys_reg.eth_proto_cap    %x\n",
 721                be32_to_cpu(ptys_reg.eth_proto_cap));
 722         en_dbg(DRV, priv, "ptys_reg.eth_proto_admin  %x\n",
 723                be32_to_cpu(ptys_reg.eth_proto_admin));
 724         en_dbg(DRV, priv, "ptys_reg.eth_proto_oper   %x\n",
 725                be32_to_cpu(ptys_reg.eth_proto_oper));
 726         en_dbg(DRV, priv, "ptys_reg.eth_proto_lp_adv %x\n",
 727                be32_to_cpu(ptys_reg.eth_proto_lp_adv));
 728
 729         /* reset supported/advertising masks */
 730         ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 731         ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 732
 733         ptys2ethtool_update_supported_port(link_ksettings->link_modes.supported,
 734                                            &ptys_reg);
 735
 736         eth_proto = be32_to_cpu(ptys_reg.eth_proto_cap);
 737         ptys2ethtool_update_link_modes(link_ksettings->link_modes.supported,
 738                                        eth_proto, SUPPORTED);
 739
 740         eth_proto = be32_to_cpu(ptys_reg.eth_proto_admin);
 741         ptys2ethtool_update_link_modes(link_ksettings->link_modes.advertising,
 742                                        eth_proto, ADVERTISED);
 743
 744         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 745                                              Pause);
 746         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 747                                              Asym_Pause);
 748
 749         if (priv->prof->tx_pause)
 750                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 751                                                      advertising, Pause);
 752         if (priv->prof->tx_pause ^ priv->prof->rx_pause)
 753                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 754                                                      advertising, Asym_Pause);
 755
 756         link_ksettings->base.port = ptys_get_active_port(&ptys_reg);
 757
 758         if (mlx4_en_autoneg_get(dev)) {
 759                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 760                                                      supported, Autoneg);
 761                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 762                                                      advertising, Autoneg);
 763         }
 764
 765         link_ksettings->base.autoneg
 766                 = (priv->port_state.flags & MLX4_EN_PORT_ANC) ?
 767                 AUTONEG_ENABLE : AUTONEG_DISABLE;
 768
 769         eth_proto = be32_to_cpu(ptys_reg.eth_proto_lp_adv);
 770
 771         ethtool_link_ksettings_zero_link_mode(link_ksettings, lp_advertising);
 772         ptys2ethtool_update_link_modes(
 773                 link_ksettings->link_modes.lp_advertising,
 774                 eth_proto, ADVERTISED);
 775         if (priv->port_state.flags & MLX4_EN_PORT_ANC)
 776                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 777                                                      lp_advertising, Autoneg);
 778
 779         link_ksettings->base.phy_address = 0;
 780         link_ksettings->base.mdio_support = 0;
 781         link_ksettings->base.eth_tp_mdix = ETH_TP_MDI_INVALID;
 782         link_ksettings->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
 783
 784         return ret;
 785 }
 786
 787 static void
 788 ethtool_get_default_link_ksettings(
 789         struct net_device *dev, struct ethtool_link_ksettings *link_ksettings)
 790 {
 791         struct mlx4_en_priv *priv = netdev_priv(dev);
 792         int trans_type;
 793
 794         link_ksettings->base.autoneg = AUTONEG_DISABLE;
 795
 796         ethtool_link_ksettings_zero_link_mode(link_ksettings, supported);
 797         ethtool_link_ksettings_add_link_mode(link_ksettings, supported,
 798                                              10000baseT_Full);
 799
 800         ethtool_link_ksettings_zero_link_mode(link_ksettings, advertising);
 801         ethtool_link_ksettings_add_link_mode(link_ksettings, advertising,
 802                                              10000baseT_Full);
 803
 804         trans_type = priv->port_state.transceiver;
 805         if (trans_type > 0 && trans_type <= 0xC) {
 806                 link_ksettings->base.port = PORT_FIBRE;
 807                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 808                                                      supported, FIBRE);
 809                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 810                                                      advertising, FIBRE);
 811         } else if (trans_type == 0x80 || trans_type == 0) {
 812                 link_ksettings->base.port = PORT_TP;
 813                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 814                                                      supported, TP);
 815                 ethtool_link_ksettings_add_link_mode(link_ksettings,
 816                                                      advertising, TP);
 817         } else  {
 818                 link_ksettings->base.port = -1;
 819         }
 820 }
 821
 822 static int
 823 mlx4_en_get_link_ksettings(struct net_device *dev,
 824                            struct ethtool_link_ksettings *link_ksettings)
 825 {
 826         struct mlx4_en_priv *priv = netdev_priv(dev);
 827         int ret = -EINVAL;
 828
 829         if (mlx4_en_QUERY_PORT(priv->mdev, priv->port))
 830                 return -ENOMEM;
 831
 832         en_dbg(DRV, priv, "query port state.flags ANC(%x) ANE(%x)\n",
 833                priv->port_state.flags & MLX4_EN_PORT_ANC,
 834                priv->port_state.flags & MLX4_EN_PORT_ANE);
 835
 836         if (priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL)
 837                 ret = ethtool_get_ptys_link_ksettings(dev, link_ksettings);
 838         if (ret) /* ETH PROT CRTL is not supported or PTYS CMD failed */
 839                 ethtool_get_default_link_ksettings(dev, link_ksettings);
 840
 841         if (netif_carrier_ok(dev)) {
 842                 link_ksettings->base.speed = priv->port_state.link_speed;
 843                 link_ksettings->base.duplex = DUPLEX_FULL;
 844         } else {
 845                 link_ksettings->base.speed = SPEED_UNKNOWN;
 846                 link_ksettings->base.duplex = DUPLEX_UNKNOWN;
 847         }
 848         return 0;
 849 }
 850
 851 /* Calculate PTYS admin according ethtool speed (SPEED_XXX) */
 852 static __be32 speed_set_ptys_admin(struct mlx4_en_priv *priv, u32 speed,
 853                                    __be32 proto_cap)
 854 {
 855         __be32 proto_admin = 0;
 856
 857         if (!speed) { /* Speed = 0 ==> Reset Link modes */
 858                 proto_admin = proto_cap;
 859                 en_info(priv, "Speed was set to 0, Reset advertised Link Modes to default (%x)\n",
 860                         be32_to_cpu(proto_cap));
 861         } else {
 862                 u32 ptys_link_modes = speed2ptys_link_modes(speed);
 863
 864                 proto_admin = cpu_to_be32(ptys_link_modes) & proto_cap;
 865                 en_info(priv, "Setting Speed to %d\n", speed);
 866         }
 867         return proto_admin;
 868 }
 869
 870 static int
 871 mlx4_en_set_link_ksettings(struct net_device *dev,
 872                            const struct ethtool_link_ksettings *link_ksettings)
 873 {
 874         struct mlx4_en_priv *priv = netdev_priv(dev);
 875         struct mlx4_ptys_reg ptys_reg;
 876         __be32 proto_admin;
 877         int ret;
 878
 879         u32 ptys_adv = ethtool2ptys_link_modes(
 880                 link_ksettings->link_modes.advertising, ADVERTISED);
 881         const int speed = link_ksettings->base.speed;
 882
 883         en_dbg(DRV, priv,
 884                "Set Speed=%d adv={%*pbl} autoneg=%d duplex=%d\n",
 885                speed, __ETHTOOL_LINK_MODE_MASK_NBITS,
 886                link_ksettings->link_modes.advertising,
 887                link_ksettings->base.autoneg,
 888                link_ksettings->base.duplex);
 889
 890         if (!(priv->mdev->dev->caps.flags2 &
 891               MLX4_DEV_CAP_FLAG2_ETH_PROT_CTRL) ||
 892             (link_ksettings->base.duplex == DUPLEX_HALF))
 893                 return -EINVAL;
 894
 895         memset(&ptys_reg, 0, sizeof(ptys_reg));
 896         ptys_reg.local_port = priv->port;
 897         ptys_reg.proto_mask = MLX4_PTYS_EN;
 898         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev,
 899                                    MLX4_ACCESS_REG_QUERY, &ptys_reg);
 900         if (ret) {
 901                 en_warn(priv, "Failed to QUERY mlx4_ACCESS_PTYS_REG status(%x)\n",
 902                         ret);
 903                 return 0;
 904         }
 905
 906         proto_admin = link_ksettings->base.autoneg == AUTONEG_ENABLE ?
 907                 cpu_to_be32(ptys_adv) :
 908                 speed_set_ptys_admin(priv, speed,
 909                                      ptys_reg.eth_proto_cap);
 910
 911         proto_admin &= ptys_reg.eth_proto_cap;
 912         if (!proto_admin) {
 913                 en_warn(priv, "Not supported link mode(s) requested, check supported link modes.\n");
 914                 return -EINVAL; /* nothing to change due to bad input */
 915         }
 916
 917         if (proto_admin == ptys_reg.eth_proto_admin)
 918                 return 0; /* Nothing to change */
 919
 920         en_dbg(DRV, priv, "mlx4_ACCESS_PTYS_REG SET: ptys_reg.eth_proto_admin = 0x%x\n",
 921                be32_to_cpu(proto_admin));
 922
 923         ptys_reg.eth_proto_admin = proto_admin;
 924         ret = mlx4_ACCESS_PTYS_REG(priv->mdev->dev, MLX4_ACCESS_REG_WRITE,
 925                                    &ptys_reg);
 926         if (ret) {
 927                 en_warn(priv, "Failed to write mlx4_ACCESS_PTYS_REG eth_proto_admin(0x%x) status(0x%x)",
 928                         be32_to_cpu(ptys_reg.eth_proto_admin), ret);
 929                 return ret;
 930         }
 931
 932         mutex_lock(&priv->mdev->state_lock);
 933         if (priv->port_up) {
 934                 en_warn(priv, "Port link mode changed, restarting port...\n");
 935                 mlx4_en_stop_port(dev, 1);
 936                 if (mlx4_en_start_port(dev))
 937                         en_err(priv, "Failed restarting port %d\n", priv->port);
 938         }
 939         mutex_unlock(&priv->mdev->state_lock);
 940         return 0;
 941 }
 942
 943 static int mlx4_en_get_coalesce(struct net_device *dev,
 944                               struct ethtool_coalesce *coal)
 945 {
 946         struct mlx4_en_priv *priv = netdev_priv(dev);
 947
 948         coal->tx_coalesce_usecs = priv->tx_usecs;
 949         coal->tx_max_coalesced_frames = priv->tx_frames;
 950         coal->tx_max_coalesced_frames_irq = priv->tx_work_limit;
 951
 952         coal->rx_coalesce_usecs = priv->rx_usecs;
 953         coal->rx_max_coalesced_frames = priv->rx_frames;
 954
 955         coal->pkt_rate_low = priv->pkt_rate_low;
 956         coal->rx_coalesce_usecs_low = priv->rx_usecs_low;
 957         coal->pkt_rate_high = priv->pkt_rate_high;
 958         coal->rx_coalesce_usecs_high = priv->rx_usecs_high;
 959         coal->rate_sample_interval = priv->sample_interval;
 960         coal->use_adaptive_rx_coalesce = priv->adaptive_rx_coal;
 961
 962         return 0;
 963 }
 964
 965 static int mlx4_en_set_coalesce(struct net_device *dev,
 966                               struct ethtool_coalesce *coal)
 967 {
 968         struct mlx4_en_priv *priv = netdev_priv(dev);
 969
 970         if (!coal->tx_max_coalesced_frames_irq)
 971                 return -EINVAL;
 972
 973         if (coal->tx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
 974             coal->rx_coalesce_usecs > MLX4_EN_MAX_COAL_TIME ||
 975             coal->rx_coalesce_usecs_low > MLX4_EN_MAX_COAL_TIME ||
 976             coal->rx_coalesce_usecs_high > MLX4_EN_MAX_COAL_TIME) {
 977                 netdev_info(dev, "%s: maximum coalesce time supported is %d usecs\n",
 978                             __func__, MLX4_EN_MAX_COAL_TIME);
 979                 return -ERANGE;
 980         }
 981
 982         if (coal->tx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS ||
 983             coal->rx_max_coalesced_frames > MLX4_EN_MAX_COAL_PKTS) {
 984                 netdev_info(dev, "%s: maximum coalesced frames supported is %d\n",
 985                             __func__, MLX4_EN_MAX_COAL_PKTS);
 986                 return -ERANGE;
 987         }
 988
 989         priv->rx_frames = (coal->rx_max_coalesced_frames ==
 990                            MLX4_EN_AUTO_CONF) ?
 991                                 MLX4_EN_RX_COAL_TARGET :
 992                                 coal->rx_max_coalesced_frames;
 993         priv->rx_usecs = (coal->rx_coalesce_usecs ==
 994                           MLX4_EN_AUTO_CONF) ?
 995                                 MLX4_EN_RX_COAL_TIME :
 996                                 coal->rx_coalesce_usecs;
 997
 998         /* Setting TX coalescing parameters */
 999         if (coal->tx_coalesce_usecs != priv->tx_usecs ||
1000             coal->tx_max_coalesced_frames != priv->tx_frames) {
1001                 priv->tx_usecs = coal->tx_coalesce_usecs;
1002                 priv->tx_frames = coal->tx_max_coalesced_frames;
1003         }
1004
1005         /* Set adaptive coalescing params */
1006         priv->pkt_rate_low = coal->pkt_rate_low;
1007         priv->rx_usecs_low = coal->rx_coalesce_usecs_low;
1008         priv->pkt_rate_high = coal->pkt_rate_high;
1009         priv->rx_usecs_high = coal->rx_coalesce_usecs_high;
1010         priv->sample_interval = coal->rate_sample_interval;
1011         priv->adaptive_rx_coal = coal->use_adaptive_rx_coalesce;
1012         priv->tx_work_limit = coal->tx_max_coalesced_frames_irq;
1013
1014         return mlx4_en_moderation_update(priv);
1015 }
1016
1017 static int mlx4_en_set_pauseparam(struct net_device *dev,
1018                                 struct ethtool_pauseparam *pause)
1019 {
1020         struct mlx4_en_priv *priv = netdev_priv(dev);
1021         struct mlx4_en_dev *mdev = priv->mdev;
1022         u8 tx_pause, tx_ppp, rx_pause, rx_ppp;
1023         int err;
1024
1025         if (pause->autoneg)
1026                 return -EINVAL;
1027
1028         tx_pause = !!(pause->tx_pause);
1029         rx_pause = !!(pause->rx_pause);
1030         rx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->rx_ppp;
1031         tx_ppp = (tx_pause || rx_pause) ? 0 : priv->prof->tx_ppp;
1032
1033         err = mlx4_SET_PORT_general(mdev->dev, priv->port,
1034                                     priv->rx_skb_size + ETH_FCS_LEN,
1035                                     tx_pause, tx_ppp, rx_pause, rx_ppp);
1036         if (err) {
1037                 en_err(priv, "Failed setting pause params, err = %d\n", err);
1038                 return err;
1039         }
1040
1041         mlx4_en_update_pfc_stats_bitmap(mdev->dev, &priv->stats_bitmap,
1042                                         rx_ppp, rx_pause, tx_ppp, tx_pause);
1043
1044         priv->prof->tx_pause = tx_pause;
1045         priv->prof->rx_pause = rx_pause;
1046         priv->prof->tx_ppp = tx_ppp;
1047         priv->prof->rx_ppp = rx_ppp;
1048
1049         return err;
1050 }
1051
1052 static void mlx4_en_get_pauseparam(struct net_device *dev,
1053                                  struct ethtool_pauseparam *pause)
1054 {
1055         struct mlx4_en_priv *priv = netdev_priv(dev);
1056
1057         pause->tx_pause = priv->prof->tx_pause;
1058         pause->rx_pause = priv->prof->rx_pause;
1059 }
1060
1061 static int mlx4_en_set_ringparam(struct net_device *dev,
1062                                  struct ethtool_ringparam *param)
1063 {
1064         struct mlx4_en_priv *priv = netdev_priv(dev);
1065         struct mlx4_en_dev *mdev = priv->mdev;
1066         struct mlx4_en_port_profile new_prof;
1067         struct mlx4_en_priv *tmp;
1068         u32 rx_size, tx_size;
1069         int port_up = 0;
1070         int err = 0;
1071
1072         if (param->rx_jumbo_pending || param->rx_mini_pending)
1073                 return -EINVAL;
1074
1075         rx_size = roundup_pow_of_two(param->rx_pending);
1076         rx_size = max_t(u32, rx_size, MLX4_EN_MIN_RX_SIZE);
1077         rx_size = min_t(u32, rx_size, MLX4_EN_MAX_RX_SIZE);
1078         tx_size = roundup_pow_of_two(param->tx_pending);
1079         tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
1080         tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
1081
1082         if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
1083                                         priv->rx_ring[0]->size) &&
1084             tx_size == priv->tx_ring[0]->size)
1085                 return 0;
1086
1087         tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1088         if (!tmp)
1089                 return -ENOMEM;
1090
1091         mutex_lock(&mdev->state_lock);
1092         memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1093         new_prof.tx_ring_size = tx_size;
1094         new_prof.rx_ring_size = rx_size;
1095         err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1096         if (err)
1097                 goto out;
1098
1099         if (priv->port_up) {
1100                 port_up = 1;
1101                 mlx4_en_stop_port(dev, 1);
1102         }
1103
1104         mlx4_en_safe_replace_resources(priv, tmp);
1105
1106         if (port_up) {
1107                 err = mlx4_en_start_port(dev);
1108                 if (err)
1109                         en_err(priv, "Failed starting port\n");
1110         }
1111
1112         err = mlx4_en_moderation_update(priv);
1113 out:
1114         kfree(tmp);
1115         mutex_unlock(&mdev->state_lock);
1116         return err;
1117 }
1118
1119 static void mlx4_en_get_ringparam(struct net_device *dev,
1120                                   struct ethtool_ringparam *param)
1121 {
1122         struct mlx4_en_priv *priv = netdev_priv(dev);
1123
1124         memset(param, 0, sizeof(*param));
1125         param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
1126         param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
1127         param->rx_pending = priv->port_up ?
1128                 priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
1129         param->tx_pending = priv->tx_ring[0]->size;
1130 }
1131
1132 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
1133 {
1134         struct mlx4_en_priv *priv = netdev_priv(dev);
1135
1136         return rounddown_pow_of_two(priv->rx_ring_num);
1137 }
1138
1139 static u32 mlx4_en_get_rxfh_key_size(struct net_device *netdev)
1140 {
1141         return MLX4_EN_RSS_KEY_SIZE;
1142 }
1143
1144 static int mlx4_en_check_rxfh_func(struct net_device *dev, u8 hfunc)
1145 {
1146         struct mlx4_en_priv *priv = netdev_priv(dev);
1147
1148         /* check if requested function is supported by the device */
1149         if (hfunc == ETH_RSS_HASH_TOP) {
1150                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_TOP))
1151                         return -EINVAL;
1152                 if (!(dev->features & NETIF_F_RXHASH))
1153                         en_warn(priv, "Toeplitz hash function should be used in conjunction with RX hashing for optimal performance\n");
1154                 return 0;
1155         } else if (hfunc == ETH_RSS_HASH_XOR) {
1156                 if (!(priv->mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_RSS_XOR))
1157                         return -EINVAL;
1158                 if (dev->features & NETIF_F_RXHASH)
1159                         en_warn(priv, "Enabling both XOR Hash function and RX Hashing can limit RPS functionality\n");
1160                 return 0;
1161         }
1162
1163         return -EINVAL;
1164 }
1165
1166 static int mlx4_en_get_rxfh(struct net_device *dev, u32 *ring_index, u8 *key,
1167                             u8 *hfunc)
1168 {
1169         struct mlx4_en_priv *priv = netdev_priv(dev);
1170         u32 n = mlx4_en_get_rxfh_indir_size(dev);
1171         u32 i, rss_rings;
1172         int err = 0;
1173
1174         rss_rings = priv->prof->rss_rings ?: n;
1175         rss_rings = rounddown_pow_of_two(rss_rings);
1176
1177         for (i = 0; i < n; i++) {
1178                 if (!ring_index)
1179                         break;
1180                 ring_index[i] = i % rss_rings;
1181         }
1182         if (key)
1183                 memcpy(key, priv->rss_key, MLX4_EN_RSS_KEY_SIZE);
1184         if (hfunc)
1185                 *hfunc = priv->rss_hash_fn;
1186         return err;
1187 }
1188
1189 static int mlx4_en_set_rxfh(struct net_device *dev, const u32 *ring_index,
1190                             const u8 *key, const u8 hfunc)
1191 {
1192         struct mlx4_en_priv *priv = netdev_priv(dev);
1193         u32 n = mlx4_en_get_rxfh_indir_size(dev);
1194         struct mlx4_en_dev *mdev = priv->mdev;
1195         int port_up = 0;
1196         int err = 0;
1197         int i;
1198         int rss_rings = 0;
1199
1200         /* Calculate RSS table size and make sure flows are spread evenly
1201          * between rings
1202          */
1203         for (i = 0; i < n; i++) {
1204                 if (!ring_index)
1205                         break;
1206                 if (i > 0 && !ring_index[i] && !rss_rings)
1207                         rss_rings = i;
1208
1209                 if (ring_index[i] != (i % (rss_rings ?: n)))
1210                         return -EINVAL;
1211         }
1212
1213         if (!rss_rings)
1214                 rss_rings = n;
1215
1216         /* RSS table size must be an order of 2 */
1217         if (!is_power_of_2(rss_rings))
1218                 return -EINVAL;
1219
1220         if (hfunc != ETH_RSS_HASH_NO_CHANGE) {
1221                 err = mlx4_en_check_rxfh_func(dev, hfunc);
1222                 if (err)
1223                         return err;
1224         }
1225
1226         mutex_lock(&mdev->state_lock);
1227         if (priv->port_up) {
1228                 port_up = 1;
1229                 mlx4_en_stop_port(dev, 1);
1230         }
1231
1232         if (ring_index)
1233                 priv->prof->rss_rings = rss_rings;
1234         if (key)
1235                 memcpy(priv->rss_key, key, MLX4_EN_RSS_KEY_SIZE);
1236         if (hfunc !=  ETH_RSS_HASH_NO_CHANGE)
1237                 priv->rss_hash_fn = hfunc;
1238
1239         if (port_up) {
1240                 err = mlx4_en_start_port(dev);
1241                 if (err)
1242                         en_err(priv, "Failed starting port\n");
1243         }
1244
1245         mutex_unlock(&mdev->state_lock);
1246         return err;
1247 }
1248
1249 #define all_zeros_or_all_ones(field)            \
1250         ((field) == 0 || (field) == (__force typeof(field))-1)
1251
1252 static int mlx4_en_validate_flow(struct net_device *dev,
1253                                  struct ethtool_rxnfc *cmd)
1254 {
1255         struct ethtool_usrip4_spec *l3_mask;
1256         struct ethtool_tcpip4_spec *l4_mask;
1257         struct ethhdr *eth_mask;
1258
1259         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1260                 return -EINVAL;
1261
1262         if (cmd->fs.flow_type & FLOW_MAC_EXT) {
1263                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1264                 if (!is_broadcast_ether_addr(cmd->fs.m_ext.h_dest))
1265                         return -EINVAL;
1266         }
1267
1268         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1269         case TCP_V4_FLOW:
1270         case UDP_V4_FLOW:
1271                 if (cmd->fs.m_u.tcp_ip4_spec.tos)
1272                         return -EINVAL;
1273                 l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1274                 /* don't allow mask which isn't all 0 or 1 */
1275                 if (!all_zeros_or_all_ones(l4_mask->ip4src) ||
1276                     !all_zeros_or_all_ones(l4_mask->ip4dst) ||
1277                     !all_zeros_or_all_ones(l4_mask->psrc) ||
1278                     !all_zeros_or_all_ones(l4_mask->pdst))
1279                         return -EINVAL;
1280                 break;
1281         case IP_USER_FLOW:
1282                 l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1283                 if (l3_mask->l4_4_bytes || l3_mask->tos || l3_mask->proto ||
1284                     cmd->fs.h_u.usr_ip4_spec.ip_ver != ETH_RX_NFC_IP4 ||
1285                     (!l3_mask->ip4src && !l3_mask->ip4dst) ||
1286                     !all_zeros_or_all_ones(l3_mask->ip4src) ||
1287                     !all_zeros_or_all_ones(l3_mask->ip4dst))
1288                         return -EINVAL;
1289                 break;
1290         case ETHER_FLOW:
1291                 eth_mask = &cmd->fs.m_u.ether_spec;
1292                 /* source mac mask must not be set */
1293                 if (!is_zero_ether_addr(eth_mask->h_source))
1294                         return -EINVAL;
1295
1296                 /* dest mac mask must be ff:ff:ff:ff:ff:ff */
1297                 if (!is_broadcast_ether_addr(eth_mask->h_dest))
1298                         return -EINVAL;
1299
1300                 if (!all_zeros_or_all_ones(eth_mask->h_proto))
1301                         return -EINVAL;
1302                 break;
1303         default:
1304                 return -EINVAL;
1305         }
1306
1307         if ((cmd->fs.flow_type & FLOW_EXT)) {
1308                 if (cmd->fs.m_ext.vlan_etype ||
1309                     !((cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1310                       0 ||
1311                       (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK)) ==
1312                       cpu_to_be16(VLAN_VID_MASK)))
1313                         return -EINVAL;
1314
1315                 if (cmd->fs.m_ext.vlan_tci) {
1316                         if (be16_to_cpu(cmd->fs.h_ext.vlan_tci) >= VLAN_N_VID)
1317                                 return -EINVAL;
1318
1319                 }
1320         }
1321
1322         return 0;
1323 }
1324
1325 static int mlx4_en_ethtool_add_mac_rule(struct ethtool_rxnfc *cmd,
1326                                         struct list_head *rule_list_h,
1327                                         struct mlx4_spec_list *spec_l2,
1328                                         unsigned char *mac)
1329 {
1330         int err = 0;
1331         __be64 mac_msk = cpu_to_be64(MLX4_MAC_MASK << 16);
1332
1333         spec_l2->id = MLX4_NET_TRANS_RULE_ID_ETH;
1334         memcpy(spec_l2->eth.dst_mac_msk, &mac_msk, ETH_ALEN);
1335         memcpy(spec_l2->eth.dst_mac, mac, ETH_ALEN);
1336
1337         if ((cmd->fs.flow_type & FLOW_EXT) &&
1338             (cmd->fs.m_ext.vlan_tci & cpu_to_be16(VLAN_VID_MASK))) {
1339                 spec_l2->eth.vlan_id = cmd->fs.h_ext.vlan_tci;
1340                 spec_l2->eth.vlan_id_msk = cpu_to_be16(VLAN_VID_MASK);
1341         }
1342
1343         list_add_tail(&spec_l2->list, rule_list_h);
1344
1345         return err;
1346 }
1347
1348 static int mlx4_en_ethtool_add_mac_rule_by_ipv4(struct mlx4_en_priv *priv,
1349                                                 struct ethtool_rxnfc *cmd,
1350                                                 struct list_head *rule_list_h,
1351                                                 struct mlx4_spec_list *spec_l2,
1352                                                 __be32 ipv4_dst)
1353 {
1354 #ifdef CONFIG_INET
1355         unsigned char mac[ETH_ALEN];
1356
1357         if (!ipv4_is_multicast(ipv4_dst)) {
1358                 if (cmd->fs.flow_type & FLOW_MAC_EXT)
1359                         memcpy(&mac, cmd->fs.h_ext.h_dest, ETH_ALEN);
1360                 else
1361                         memcpy(&mac, priv->dev->dev_addr, ETH_ALEN);
1362         } else {
1363                 ip_eth_mc_map(ipv4_dst, mac);
1364         }
1365
1366         return mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2, &mac[0]);
1367 #else
1368         return -EINVAL;
1369 #endif
1370 }
1371
1372 static int add_ip_rule(struct mlx4_en_priv *priv,
1373                        struct ethtool_rxnfc *cmd,
1374                        struct list_head *list_h)
1375 {
1376         int err;
1377         struct mlx4_spec_list *spec_l2 = NULL;
1378         struct mlx4_spec_list *spec_l3 = NULL;
1379         struct ethtool_usrip4_spec *l3_mask = &cmd->fs.m_u.usr_ip4_spec;
1380
1381         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1382         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1383         if (!spec_l2 || !spec_l3) {
1384                 err = -ENOMEM;
1385                 goto free_spec;
1386         }
1387
1388         err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h, spec_l2,
1389                                                    cmd->fs.h_u.
1390                                                    usr_ip4_spec.ip4dst);
1391         if (err)
1392                 goto free_spec;
1393         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1394         spec_l3->ipv4.src_ip = cmd->fs.h_u.usr_ip4_spec.ip4src;
1395         if (l3_mask->ip4src)
1396                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1397         spec_l3->ipv4.dst_ip = cmd->fs.h_u.usr_ip4_spec.ip4dst;
1398         if (l3_mask->ip4dst)
1399                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1400         list_add_tail(&spec_l3->list, list_h);
1401
1402         return 0;
1403
1404 free_spec:
1405         kfree(spec_l2);
1406         kfree(spec_l3);
1407         return err;
1408 }
1409
1410 static int add_tcp_udp_rule(struct mlx4_en_priv *priv,
1411                              struct ethtool_rxnfc *cmd,
1412                              struct list_head *list_h, int proto)
1413 {
1414         int err;
1415         struct mlx4_spec_list *spec_l2 = NULL;
1416         struct mlx4_spec_list *spec_l3 = NULL;
1417         struct mlx4_spec_list *spec_l4 = NULL;
1418         struct ethtool_tcpip4_spec *l4_mask = &cmd->fs.m_u.tcp_ip4_spec;
1419
1420         spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1421         spec_l3 = kzalloc(sizeof(*spec_l3), GFP_KERNEL);
1422         spec_l4 = kzalloc(sizeof(*spec_l4), GFP_KERNEL);
1423         if (!spec_l2 || !spec_l3 || !spec_l4) {
1424                 err = -ENOMEM;
1425                 goto free_spec;
1426         }
1427
1428         spec_l3->id = MLX4_NET_TRANS_RULE_ID_IPV4;
1429
1430         if (proto == TCP_V4_FLOW) {
1431                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1432                                                            spec_l2,
1433                                                            cmd->fs.h_u.
1434                                                            tcp_ip4_spec.ip4dst);
1435                 if (err)
1436                         goto free_spec;
1437                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_TCP;
1438                 spec_l3->ipv4.src_ip = cmd->fs.h_u.tcp_ip4_spec.ip4src;
1439                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.tcp_ip4_spec.ip4dst;
1440                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.tcp_ip4_spec.psrc;
1441                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.tcp_ip4_spec.pdst;
1442         } else {
1443                 err = mlx4_en_ethtool_add_mac_rule_by_ipv4(priv, cmd, list_h,
1444                                                            spec_l2,
1445                                                            cmd->fs.h_u.
1446                                                            udp_ip4_spec.ip4dst);
1447                 if (err)
1448                         goto free_spec;
1449                 spec_l4->id = MLX4_NET_TRANS_RULE_ID_UDP;
1450                 spec_l3->ipv4.src_ip = cmd->fs.h_u.udp_ip4_spec.ip4src;
1451                 spec_l3->ipv4.dst_ip = cmd->fs.h_u.udp_ip4_spec.ip4dst;
1452                 spec_l4->tcp_udp.src_port = cmd->fs.h_u.udp_ip4_spec.psrc;
1453                 spec_l4->tcp_udp.dst_port = cmd->fs.h_u.udp_ip4_spec.pdst;
1454         }
1455
1456         if (l4_mask->ip4src)
1457                 spec_l3->ipv4.src_ip_msk = EN_ETHTOOL_WORD_MASK;
1458         if (l4_mask->ip4dst)
1459                 spec_l3->ipv4.dst_ip_msk = EN_ETHTOOL_WORD_MASK;
1460
1461         if (l4_mask->psrc)
1462                 spec_l4->tcp_udp.src_port_msk = EN_ETHTOOL_SHORT_MASK;
1463         if (l4_mask->pdst)
1464                 spec_l4->tcp_udp.dst_port_msk = EN_ETHTOOL_SHORT_MASK;
1465
1466         list_add_tail(&spec_l3->list, list_h);
1467         list_add_tail(&spec_l4->list, list_h);
1468
1469         return 0;
1470
1471 free_spec:
1472         kfree(spec_l2);
1473         kfree(spec_l3);
1474         kfree(spec_l4);
1475         return err;
1476 }
1477
1478 static int mlx4_en_ethtool_to_net_trans_rule(struct net_device *dev,
1479                                              struct ethtool_rxnfc *cmd,
1480                                              struct list_head *rule_list_h)
1481 {
1482         int err;
1483         struct ethhdr *eth_spec;
1484         struct mlx4_spec_list *spec_l2;
1485         struct mlx4_en_priv *priv = netdev_priv(dev);
1486
1487         err = mlx4_en_validate_flow(dev, cmd);
1488         if (err)
1489                 return err;
1490
1491         switch (cmd->fs.flow_type & ~(FLOW_EXT | FLOW_MAC_EXT)) {
1492         case ETHER_FLOW:
1493                 spec_l2 = kzalloc(sizeof(*spec_l2), GFP_KERNEL);
1494                 if (!spec_l2)
1495                         return -ENOMEM;
1496
1497                 eth_spec = &cmd->fs.h_u.ether_spec;
1498                 mlx4_en_ethtool_add_mac_rule(cmd, rule_list_h, spec_l2,
1499                                              &eth_spec->h_dest[0]);
1500                 spec_l2->eth.ether_type = eth_spec->h_proto;
1501                 if (eth_spec->h_proto)
1502                         spec_l2->eth.ether_type_enable = 1;
1503                 break;
1504         case IP_USER_FLOW:
1505                 err = add_ip_rule(priv, cmd, rule_list_h);
1506                 break;
1507         case TCP_V4_FLOW:
1508                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, TCP_V4_FLOW);
1509                 break;
1510         case UDP_V4_FLOW:
1511                 err = add_tcp_udp_rule(priv, cmd, rule_list_h, UDP_V4_FLOW);
1512                 break;
1513         }
1514
1515         return err;
1516 }
1517
1518 static int mlx4_en_flow_replace(struct net_device *dev,
1519                                 struct ethtool_rxnfc *cmd)
1520 {
1521         int err;
1522         struct mlx4_en_priv *priv = netdev_priv(dev);
1523         struct ethtool_flow_id *loc_rule;
1524         struct mlx4_spec_list *spec, *tmp_spec;
1525         u32 qpn;
1526         u64 reg_id;
1527
1528         struct mlx4_net_trans_rule rule = {
1529                 .queue_mode = MLX4_NET_TRANS_Q_FIFO,
1530                 .exclusive = 0,
1531                 .allow_loopback = 1,
1532                 .promisc_mode = MLX4_FS_REGULAR,
1533         };
1534
1535         rule.port = priv->port;
1536         rule.priority = MLX4_DOMAIN_ETHTOOL | cmd->fs.location;
1537         INIT_LIST_HEAD(&rule.list);
1538
1539         /* Allow direct QP attaches if the EN_ETHTOOL_QP_ATTACH flag is set */
1540         if (cmd->fs.ring_cookie == RX_CLS_FLOW_DISC)
1541                 qpn = priv->drop_qp.qpn;
1542         else if (cmd->fs.ring_cookie & EN_ETHTOOL_QP_ATTACH) {
1543                 qpn = cmd->fs.ring_cookie & (EN_ETHTOOL_QP_ATTACH - 1);
1544         } else {
1545                 if (cmd->fs.ring_cookie >= priv->rx_ring_num) {
1546                         en_warn(priv, "rxnfc: RX ring (%llu) doesn't exist\n",
1547                                 cmd->fs.ring_cookie);
1548                         return -EINVAL;
1549                 }
1550                 qpn = priv->rss_map.qps[cmd->fs.ring_cookie].qpn;
1551                 if (!qpn) {
1552                         en_warn(priv, "rxnfc: RX ring (%llu) is inactive\n",
1553                                 cmd->fs.ring_cookie);
1554                         return -EINVAL;
1555                 }
1556         }
1557         rule.qpn = qpn;
1558         err = mlx4_en_ethtool_to_net_trans_rule(dev, cmd, &rule.list);
1559         if (err)
1560                 goto out_free_list;
1561
1562         loc_rule = &priv->ethtool_rules[cmd->fs.location];
1563         if (loc_rule->id) {
1564                 err = mlx4_flow_detach(priv->mdev->dev, loc_rule->id);
1565                 if (err) {
1566                         en_err(priv, "Fail to detach network rule at location %d. registration id = %llx\n",
1567                                cmd->fs.location, loc_rule->id);
1568                         goto out_free_list;
1569                 }
1570                 loc_rule->id = 0;
1571                 memset(&loc_rule->flow_spec, 0,
1572                        sizeof(struct ethtool_rx_flow_spec));
1573                 list_del(&loc_rule->list);
1574         }
1575         err = mlx4_flow_attach(priv->mdev->dev, &rule, &reg_id);
1576         if (err) {
1577                 en_err(priv, "Fail to attach network rule at location %d\n",
1578                        cmd->fs.location);
1579                 goto out_free_list;
1580         }
1581         loc_rule->id = reg_id;
1582         memcpy(&loc_rule->flow_spec, &cmd->fs,
1583                sizeof(struct ethtool_rx_flow_spec));
1584         list_add_tail(&loc_rule->list, &priv->ethtool_list);
1585
1586 out_free_list:
1587         list_for_each_entry_safe(spec, tmp_spec, &rule.list, list) {
1588                 list_del(&spec->list);
1589                 kfree(spec);
1590         }
1591         return err;
1592 }
1593
1594 static int mlx4_en_flow_detach(struct net_device *dev,
1595                                struct ethtool_rxnfc *cmd)
1596 {
1597         int err = 0;
1598         struct ethtool_flow_id *rule;
1599         struct mlx4_en_priv *priv = netdev_priv(dev);
1600
1601         if (cmd->fs.location >= MAX_NUM_OF_FS_RULES)
1602                 return -EINVAL;
1603
1604         rule = &priv->ethtool_rules[cmd->fs.location];
1605         if (!rule->id) {
1606                 err =  -ENOENT;
1607                 goto out;
1608         }
1609
1610         err = mlx4_flow_detach(priv->mdev->dev, rule->id);
1611         if (err) {
1612                 en_err(priv, "Fail to detach network rule at location %d. registration id = 0x%llx\n",
1613                        cmd->fs.location, rule->id);
1614                 goto out;
1615         }
1616         rule->id = 0;
1617         memset(&rule->flow_spec, 0, sizeof(struct ethtool_rx_flow_spec));
1618         list_del(&rule->list);
1619 out:
1620         return err;
1621
1622 }
1623
1624 static int mlx4_en_get_flow(struct net_device *dev, struct ethtool_rxnfc *cmd,
1625                             int loc)
1626 {
1627         int err = 0;
1628         struct ethtool_flow_id *rule;
1629         struct mlx4_en_priv *priv = netdev_priv(dev);
1630
1631         if (loc < 0 || loc >= MAX_NUM_OF_FS_RULES)
1632                 return -EINVAL;
1633
1634         rule = &priv->ethtool_rules[loc];
1635         if (rule->id)
1636                 memcpy(&cmd->fs, &rule->flow_spec,
1637                        sizeof(struct ethtool_rx_flow_spec));
1638         else
1639                 err = -ENOENT;
1640
1641         return err;
1642 }
1643
1644 static int mlx4_en_get_num_flows(struct mlx4_en_priv *priv)
1645 {
1646
1647         int i, res = 0;
1648         for (i = 0; i < MAX_NUM_OF_FS_RULES; i++) {
1649                 if (priv->ethtool_rules[i].id)
1650                         res++;
1651         }
1652         return res;
1653
1654 }
1655
1656 static int mlx4_en_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd,
1657                              u32 *rule_locs)
1658 {
1659         struct mlx4_en_priv *priv = netdev_priv(dev);
1660         struct mlx4_en_dev *mdev = priv->mdev;
1661         int err = 0;
1662         int i = 0, priority = 0;
1663
1664         if ((cmd->cmd == ETHTOOL_GRXCLSRLCNT ||
1665              cmd->cmd == ETHTOOL_GRXCLSRULE ||
1666              cmd->cmd == ETHTOOL_GRXCLSRLALL) &&
1667             (mdev->dev->caps.steering_mode !=
1668              MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up))
1669                 return -EINVAL;
1670
1671         switch (cmd->cmd) {
1672         case ETHTOOL_GRXRINGS:
1673                 cmd->data = priv->rx_ring_num;
1674                 break;
1675         case ETHTOOL_GRXCLSRLCNT:
1676                 cmd->rule_cnt = mlx4_en_get_num_flows(priv);
1677                 break;
1678         case ETHTOOL_GRXCLSRULE:
1679                 err = mlx4_en_get_flow(dev, cmd, cmd->fs.location);
1680                 break;
1681         case ETHTOOL_GRXCLSRLALL:
1682                 cmd->data = MAX_NUM_OF_FS_RULES;
1683                 while ((!err || err == -ENOENT) && priority < cmd->rule_cnt) {
1684                         err = mlx4_en_get_flow(dev, cmd, i);
1685                         if (!err)
1686                                 rule_locs[priority++] = i;
1687                         i++;
1688                 }
1689                 err = 0;
1690                 break;
1691         default:
1692                 err = -EOPNOTSUPP;
1693                 break;
1694         }
1695
1696         return err;
1697 }
1698
1699 static int mlx4_en_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd)
1700 {
1701         int err = 0;
1702         struct mlx4_en_priv *priv = netdev_priv(dev);
1703         struct mlx4_en_dev *mdev = priv->mdev;
1704
1705         if (mdev->dev->caps.steering_mode !=
1706             MLX4_STEERING_MODE_DEVICE_MANAGED || !priv->port_up)
1707                 return -EINVAL;
1708
1709         switch (cmd->cmd) {
1710         case ETHTOOL_SRXCLSRLINS:
1711                 err = mlx4_en_flow_replace(dev, cmd);
1712                 break;
1713         case ETHTOOL_SRXCLSRLDEL:
1714                 err = mlx4_en_flow_detach(dev, cmd);
1715                 break;
1716         default:
1717                 en_warn(priv, "Unsupported ethtool command. (%d)\n", cmd->cmd);
1718                 return -EINVAL;
1719         }
1720
1721         return err;
1722 }
1723
1724 static void mlx4_en_get_channels(struct net_device *dev,
1725                                  struct ethtool_channels *channel)
1726 {
1727         struct mlx4_en_priv *priv = netdev_priv(dev);
1728
1729         memset(channel, 0, sizeof(*channel));
1730
1731         channel->max_rx = MAX_RX_RINGS;
1732         channel->max_tx = MLX4_EN_MAX_TX_RING_P_UP;
1733
1734         channel->rx_count = priv->rx_ring_num;
1735         channel->tx_count = priv->tx_ring_num / MLX4_EN_NUM_UP;
1736 }
1737
1738 static int mlx4_en_set_channels(struct net_device *dev,
1739                                 struct ethtool_channels *channel)
1740 {
1741         struct mlx4_en_priv *priv = netdev_priv(dev);
1742         struct mlx4_en_dev *mdev = priv->mdev;
1743         struct mlx4_en_port_profile new_prof;
1744         struct mlx4_en_priv *tmp;
1745         int port_up = 0;
1746         int err = 0;
1747
1748         if (channel->other_count || channel->combined_count ||
1749             channel->tx_count > MLX4_EN_MAX_TX_RING_P_UP ||
1750             channel->rx_count > MAX_RX_RINGS ||
1751             !channel->tx_count || !channel->rx_count)
1752                 return -EINVAL;
1753
1754         if (channel->tx_count * MLX4_EN_NUM_UP <= priv->xdp_ring_num) {
1755                 en_err(priv, "Minimum %d tx channels required with XDP on\n",
1756                        priv->xdp_ring_num / MLX4_EN_NUM_UP + 1);
1757                 return -EINVAL;
1758         }
1759
1760         tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
1761         if (!tmp)
1762                 return -ENOMEM;
1763
1764         mutex_lock(&mdev->state_lock);
1765         memcpy(&new_prof, priv->prof, sizeof(struct mlx4_en_port_profile));
1766         new_prof.num_tx_rings_p_up = channel->tx_count;
1767         new_prof.tx_ring_num = channel->tx_count * MLX4_EN_NUM_UP;
1768         new_prof.rx_ring_num = channel->rx_count;
1769
1770         err = mlx4_en_try_alloc_resources(priv, tmp, &new_prof);
1771         if (err)
1772                 goto out;
1773
1774         if (priv->port_up) {
1775                 port_up = 1;
1776                 mlx4_en_stop_port(dev, 1);
1777         }
1778
1779         mlx4_en_safe_replace_resources(priv, tmp);
1780
1781         netif_set_real_num_tx_queues(dev, priv->tx_ring_num -
1782                                                         priv->xdp_ring_num);
1783         netif_set_real_num_rx_queues(dev, priv->rx_ring_num);
1784
1785         if (dev->num_tc)
1786                 mlx4_en_setup_tc(dev, MLX4_EN_NUM_UP);
1787
1788         en_warn(priv, "Using %d TX rings\n", priv->tx_ring_num);
1789         en_warn(priv, "Using %d RX rings\n", priv->rx_ring_num);
1790
1791         if (port_up) {
1792                 err = mlx4_en_start_port(dev);
1793                 if (err)
1794                         en_err(priv, "Failed starting port\n");
1795         }
1796
1797         err = mlx4_en_moderation_update(priv);
1798 out:
1799         kfree(tmp);
1800         mutex_unlock(&mdev->state_lock);
1801         return err;
1802 }
1803
1804 static int mlx4_en_get_ts_info(struct net_device *dev,
1805                                struct ethtool_ts_info *info)
1806 {
1807         struct mlx4_en_priv *priv = netdev_priv(dev);
1808         struct mlx4_en_dev *mdev = priv->mdev;
1809         int ret;
1810
1811         ret = ethtool_op_get_ts_info(dev, info);
1812         if (ret)
1813                 return ret;
1814
1815         if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS) {
1816                 info->so_timestamping |=
1817                         SOF_TIMESTAMPING_TX_HARDWARE |
1818                         SOF_TIMESTAMPING_RX_HARDWARE |
1819                         SOF_TIMESTAMPING_RAW_HARDWARE;
1820
1821                 info->tx_types =
1822                         (1 << HWTSTAMP_TX_OFF) |
1823                         (1 << HWTSTAMP_TX_ON);
1824
1825                 info->rx_filters =
1826                         (1 << HWTSTAMP_FILTER_NONE) |
1827                         (1 << HWTSTAMP_FILTER_ALL);
1828
1829                 if (mdev->ptp_clock)
1830                         info->phc_index = ptp_clock_index(mdev->ptp_clock);
1831         }
1832
1833         return ret;
1834 }
1835
1836 static int mlx4_en_set_priv_flags(struct net_device *dev, u32 flags)
1837 {
1838         struct mlx4_en_priv *priv = netdev_priv(dev);
1839         struct mlx4_en_dev *mdev = priv->mdev;
1840         bool bf_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1841         bool bf_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_BLUEFLAME);
1842         bool phv_enabled_new = !!(flags & MLX4_EN_PRIV_FLAGS_PHV);
1843         bool phv_enabled_old = !!(priv->pflags & MLX4_EN_PRIV_FLAGS_PHV);
1844         int i;
1845         int ret = 0;
1846
1847         if (bf_enabled_new != bf_enabled_old) {
1848                 if (bf_enabled_new) {
1849                         bool bf_supported = true;
1850
1851                         for (i = 0; i < priv->tx_ring_num; i++)
1852                                 bf_supported &= priv->tx_ring[i]->bf_alloced;
1853
1854                         if (!bf_supported) {
1855                                 en_err(priv, "BlueFlame is not supported\n");
1856                                 return -EINVAL;
1857                         }
1858
1859                         priv->pflags |= MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1860                 } else {
1861                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_BLUEFLAME;
1862                 }
1863
1864                 for (i = 0; i < priv->tx_ring_num; i++)
1865                         priv->tx_ring[i]->bf_enabled = bf_enabled_new;
1866
1867                 en_info(priv, "BlueFlame %s\n",
1868                         bf_enabled_new ?  "Enabled" : "Disabled");
1869         }
1870
1871         if (phv_enabled_new != phv_enabled_old) {
1872                 ret = set_phv_bit(mdev->dev, priv->port, (int)phv_enabled_new);
1873                 if (ret)
1874                         return ret;
1875                 else if (phv_enabled_new)
1876                         priv->pflags |= MLX4_EN_PRIV_FLAGS_PHV;
1877                 else
1878                         priv->pflags &= ~MLX4_EN_PRIV_FLAGS_PHV;
1879                 en_info(priv, "PHV bit %s\n",
1880                         phv_enabled_new ?  "Enabled" : "Disabled");
1881         }
1882         return 0;
1883 }
1884
1885 static u32 mlx4_en_get_priv_flags(struct net_device *dev)
1886 {
1887         struct mlx4_en_priv *priv = netdev_priv(dev);
1888
1889         return priv->pflags;
1890 }
1891
1892 static int mlx4_en_get_tunable(struct net_device *dev,
1893                                const struct ethtool_tunable *tuna,
1894                                void *data)
1895 {
1896         const struct mlx4_en_priv *priv = netdev_priv(dev);
1897         int ret = 0;
1898
1899         switch (tuna->id) {
1900         case ETHTOOL_TX_COPYBREAK:
1901                 *(u32 *)data = priv->prof->inline_thold;
1902                 break;
1903         default:
1904                 ret = -EINVAL;
1905                 break;
1906         }
1907
1908         return ret;
1909 }
1910
1911 static int mlx4_en_set_tunable(struct net_device *dev,
1912                                const struct ethtool_tunable *tuna,
1913                                const void *data)
1914 {
1915         struct mlx4_en_priv *priv = netdev_priv(dev);
1916         int val, ret = 0;
1917
1918         switch (tuna->id) {
1919         case ETHTOOL_TX_COPYBREAK:
1920                 val = *(u32 *)data;
1921                 if (val < MIN_PKT_LEN || val > MAX_INLINE)
1922                         ret = -EINVAL;
1923                 else
1924                         priv->prof->inline_thold = val;
1925                 break;
1926         default:
1927                 ret = -EINVAL;
1928                 break;
1929         }
1930
1931         return ret;
1932 }
1933
1934 static int mlx4_en_get_module_info(struct net_device *dev,
1935                                    struct ethtool_modinfo *modinfo)
1936 {
1937         struct mlx4_en_priv *priv = netdev_priv(dev);
1938         struct mlx4_en_dev *mdev = priv->mdev;
1939         int ret;
1940         u8 data[4];
1941
1942         /* Read first 2 bytes to get Module & REV ID */
1943         ret = mlx4_get_module_info(mdev->dev, priv->port,
1944                                    0/*offset*/, 2/*size*/, data);
1945         if (ret < 2)
1946                 return -EIO;
1947
1948         switch (data[0] /* identifier */) {
1949         case MLX4_MODULE_ID_QSFP:
1950                 modinfo->type = ETH_MODULE_SFF_8436;
1951                 modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1952                 break;
1953         case MLX4_MODULE_ID_QSFP_PLUS:
1954                 if (data[1] >= 0x3) { /* revision id */
1955                         modinfo->type = ETH_MODULE_SFF_8636;
1956                         modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1957                 } else {
1958                         modinfo->type = ETH_MODULE_SFF_8436;
1959                         modinfo->eeprom_len = ETH_MODULE_SFF_8436_LEN;
1960                 }
1961                 break;
1962         case MLX4_MODULE_ID_QSFP28:
1963                 modinfo->type = ETH_MODULE_SFF_8636;
1964                 modinfo->eeprom_len = ETH_MODULE_SFF_8636_LEN;
1965                 break;
1966         case MLX4_MODULE_ID_SFP:
1967                 modinfo->type = ETH_MODULE_SFF_8472;
1968                 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
1969                 break;
1970         default:
1971                 return -ENOSYS;
1972         }
1973
1974         return 0;
1975 }
1976
1977 static int mlx4_en_get_module_eeprom(struct net_device *dev,
1978                                      struct ethtool_eeprom *ee,
1979                                      u8 *data)
1980 {
1981         struct mlx4_en_priv *priv = netdev_priv(dev);
1982         struct mlx4_en_dev *mdev = priv->mdev;
1983         int offset = ee->offset;
1984         int i = 0, ret;
1985
1986         if (ee->len == 0)
1987                 return -EINVAL;
1988
1989         memset(data, 0, ee->len);
1990
1991         while (i < ee->len) {
1992                 en_dbg(DRV, priv,
1993                        "mlx4_get_module_info i(%d) offset(%d) len(%d)\n",
1994                        i, offset, ee->len - i);
1995
1996                 ret = mlx4_get_module_info(mdev->dev, priv->port,
1997                                            offset, ee->len - i, data + i);
1998
1999                 if (!ret) /* Done reading */
2000                         return 0;
2001
2002                 if (ret < 0) {
2003                         en_err(priv,
2004                                "mlx4_get_module_info i(%d) offset(%d) bytes_to_read(%d) - FAILED (0x%x)\n",
2005                                i, offset, ee->len - i, ret);
2006                         return 0;
2007                 }
2008
2009                 i += ret;
2010                 offset += ret;
2011         }
2012         return 0;
2013 }
2014
2015 static int mlx4_en_set_phys_id(struct net_device *dev,
2016                                enum ethtool_phys_id_state state)
2017 {
2018         int err;
2019         u16 beacon_duration;
2020         struct mlx4_en_priv *priv = netdev_priv(dev);
2021         struct mlx4_en_dev *mdev = priv->mdev;
2022
2023         if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_PORT_BEACON))
2024                 return -EOPNOTSUPP;
2025
2026         switch (state) {
2027         case ETHTOOL_ID_ACTIVE:
2028                 beacon_duration = PORT_BEACON_MAX_LIMIT;
2029                 break;
2030         case ETHTOOL_ID_INACTIVE:
2031                 beacon_duration = 0;
2032                 break;
2033         default:
2034                 return -EOPNOTSUPP;
2035         }
2036
2037         err = mlx4_SET_PORT_BEACON(mdev->dev, priv->port, beacon_duration);
2038         return err;
2039 }
2040
2041 const struct ethtool_ops mlx4_en_ethtool_ops = {
2042         .get_drvinfo = mlx4_en_get_drvinfo,
2043         .get_link_ksettings = mlx4_en_get_link_ksettings,
2044         .set_link_ksettings = mlx4_en_set_link_ksettings,
2045         .get_link = ethtool_op_get_link,
2046         .get_strings = mlx4_en_get_strings,
2047         .get_sset_count = mlx4_en_get_sset_count,
2048         .get_ethtool_stats = mlx4_en_get_ethtool_stats,
2049         .self_test = mlx4_en_self_test,
2050         .set_phys_id = mlx4_en_set_phys_id,
2051         .get_wol = mlx4_en_get_wol,
2052         .set_wol = mlx4_en_set_wol,
2053         .get_msglevel = mlx4_en_get_msglevel,
2054         .set_msglevel = mlx4_en_set_msglevel,
2055         .get_coalesce = mlx4_en_get_coalesce,
2056         .set_coalesce = mlx4_en_set_coalesce,
2057         .get_pauseparam = mlx4_en_get_pauseparam,
2058         .set_pauseparam = mlx4_en_set_pauseparam,
2059         .get_ringparam = mlx4_en_get_ringparam,
2060         .set_ringparam = mlx4_en_set_ringparam,
2061         .get_rxnfc = mlx4_en_get_rxnfc,
2062         .set_rxnfc = mlx4_en_set_rxnfc,
2063         .get_rxfh_indir_size = mlx4_en_get_rxfh_indir_size,
2064         .get_rxfh_key_size = mlx4_en_get_rxfh_key_size,
2065         .get_rxfh = mlx4_en_get_rxfh,
2066         .set_rxfh = mlx4_en_set_rxfh,
2067         .get_channels = mlx4_en_get_channels,
2068         .set_channels = mlx4_en_set_channels,
2069         .get_ts_info = mlx4_en_get_ts_info,
2070         .set_priv_flags = mlx4_en_set_priv_flags,
2071         .get_priv_flags = mlx4_en_get_priv_flags,
2072         .get_tunable            = mlx4_en_get_tunable,
2073         .set_tunable            = mlx4_en_set_tunable,
2074         .get_module_info = mlx4_en_get_module_info,
2075         .get_module_eeprom = mlx4_en_get_module_eeprom
2076 };
2077
2078
2079
2080
2081