drivers/net/vmxnet3/vmxnet3_ethtool.c

   1 /*
   2  * Linux driver for VMware's vmxnet3 ethernet NIC.
   3  *
   4  * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; version 2 of the License and no later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  13  * NON INFRINGEMENT.  See the GNU General Public License for more
  14  * details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * The full GNU General Public License is included in this distribution in
  21  * the file called "COPYING".
  22  *
  23  * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com>
  24  *
  25  */
  26
  27
  28 #include "vmxnet3_int.h"
  29
  30 struct vmxnet3_stat_desc {
  31         char desc[ETH_GSTRING_LEN];
  32         int  offset;
  33 };
  34
  35
  36 /* per tq stats maintained by the device */
  37 static const struct vmxnet3_stat_desc
  38 vmxnet3_tq_dev_stats[] = {
  39         /* description,         offset */
  40         { "Tx Queue#",        0 },
  41         { "  TSO pkts tx",      offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
  42         { "  TSO bytes tx",     offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
  43         { "  ucast pkts tx",    offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
  44         { "  ucast bytes tx",   offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
  45         { "  mcast pkts tx",    offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
  46         { "  mcast bytes tx",   offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
  47         { "  bcast pkts tx",    offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
  48         { "  bcast bytes tx",   offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
  49         { "  pkts tx err",      offsetof(struct UPT1_TxStats, pktsTxError) },
  50         { "  pkts tx discard",  offsetof(struct UPT1_TxStats, pktsTxDiscard) },
  51 };
  52
  53 /* per tq stats maintained by the driver */
  54 static const struct vmxnet3_stat_desc
  55 vmxnet3_tq_driver_stats[] = {
  56         /* description,         offset */
  57         {"  drv dropped tx total",      offsetof(struct vmxnet3_tq_driver_stats,
  58                                                  drop_total) },
  59         { "     too many frags", offsetof(struct vmxnet3_tq_driver_stats,
  60                                           drop_too_many_frags) },
  61         { "     giant hdr",     offsetof(struct vmxnet3_tq_driver_stats,
  62                                          drop_oversized_hdr) },
  63         { "     hdr err",       offsetof(struct vmxnet3_tq_driver_stats,
  64                                          drop_hdr_inspect_err) },
  65         { "     tso",           offsetof(struct vmxnet3_tq_driver_stats,
  66                                          drop_tso) },
  67         { "  ring full",        offsetof(struct vmxnet3_tq_driver_stats,
  68                                          tx_ring_full) },
  69         { "  pkts linearized",  offsetof(struct vmxnet3_tq_driver_stats,
  70                                          linearized) },
  71         { "  hdr cloned",       offsetof(struct vmxnet3_tq_driver_stats,
  72                                          copy_skb_header) },
  73         { "  giant hdr",        offsetof(struct vmxnet3_tq_driver_stats,
  74                                          oversized_hdr) },
  75 };
  76
  77 /* per rq stats maintained by the device */
  78 static const struct vmxnet3_stat_desc
  79 vmxnet3_rq_dev_stats[] = {
  80         { "Rx Queue#",        0 },
  81         { "  LRO pkts rx",      offsetof(struct UPT1_RxStats, LROPktsRxOK) },
  82         { "  LRO byte rx",      offsetof(struct UPT1_RxStats, LROBytesRxOK) },
  83         { "  ucast pkts rx",    offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
  84         { "  ucast bytes rx",   offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
  85         { "  mcast pkts rx",    offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
  86         { "  mcast bytes rx",   offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
  87         { "  bcast pkts rx",    offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
  88         { "  bcast bytes rx",   offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
  89         { "  pkts rx OOB",      offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
  90         { "  pkts rx err",      offsetof(struct UPT1_RxStats, pktsRxError) },
  91 };
  92
  93 /* per rq stats maintained by the driver */
  94 static const struct vmxnet3_stat_desc
  95 vmxnet3_rq_driver_stats[] = {
  96         /* description,         offset */
  97         { "  drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
  98                                              drop_total) },
  99         { "     err",           offsetof(struct vmxnet3_rq_driver_stats,
 100                                          drop_err) },
 101         { "     fcs",           offsetof(struct vmxnet3_rq_driver_stats,
 102                                          drop_fcs) },
 103         { "  rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
 104                                           rx_buf_alloc_failure) },
 105 };
 106
 107 /* gloabl stats maintained by the driver */
 108 static const struct vmxnet3_stat_desc
 109 vmxnet3_global_stats[] = {
 110         /* description,         offset */
 111         { "tx timeout count",   offsetof(struct vmxnet3_adapter,
 112                                          tx_timeout_count) }
 113 };
 114
 115
 116 struct rtnl_link_stats64 *
 117 vmxnet3_get_stats64(struct net_device *netdev,
 118                    struct rtnl_link_stats64 *stats)
 119 {
 120         struct vmxnet3_adapter *adapter;
 121         struct vmxnet3_tq_driver_stats *drvTxStats;
 122         struct vmxnet3_rq_driver_stats *drvRxStats;
 123         struct UPT1_TxStats *devTxStats;
 124         struct UPT1_RxStats *devRxStats;
 125         unsigned long flags;
 126         int i;
 127
 128         adapter = netdev_priv(netdev);
 129
 130         /* Collect the dev stats into the shared area */
 131         spin_lock_irqsave(&adapter->cmd_lock, flags);
 132         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 133         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 134
 135         for (i = 0; i < adapter->num_tx_queues; i++) {
 136                 devTxStats = &adapter->tqd_start[i].stats;
 137                 drvTxStats = &adapter->tx_queue[i].stats;
 138                 stats->tx_packets += devTxStats->ucastPktsTxOK +
 139                                      devTxStats->mcastPktsTxOK +
 140                                      devTxStats->bcastPktsTxOK;
 141                 stats->tx_bytes += devTxStats->ucastBytesTxOK +
 142                                    devTxStats->mcastBytesTxOK +
 143                                    devTxStats->bcastBytesTxOK;
 144                 stats->tx_errors += devTxStats->pktsTxError;
 145                 stats->tx_dropped += drvTxStats->drop_total;
 146         }
 147
 148         for (i = 0; i < adapter->num_rx_queues; i++) {
 149                 devRxStats = &adapter->rqd_start[i].stats;
 150                 drvRxStats = &adapter->rx_queue[i].stats;
 151                 stats->rx_packets += devRxStats->ucastPktsRxOK +
 152                                      devRxStats->mcastPktsRxOK +
 153                                      devRxStats->bcastPktsRxOK;
 154
 155                 stats->rx_bytes += devRxStats->ucastBytesRxOK +
 156                                    devRxStats->mcastBytesRxOK +
 157                                    devRxStats->bcastBytesRxOK;
 158
 159                 stats->rx_errors += devRxStats->pktsRxError;
 160                 stats->rx_dropped += drvRxStats->drop_total;
 161                 stats->multicast +=  devRxStats->mcastPktsRxOK;
 162         }
 163
 164         return stats;
 165 }
 166
 167 static int
 168 vmxnet3_get_sset_count(struct net_device *netdev, int sset)
 169 {
 170         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 171         switch (sset) {
 172         case ETH_SS_STATS:
 173                 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) +
 174                         ARRAY_SIZE(vmxnet3_tq_driver_stats)) *
 175                        adapter->num_tx_queues +
 176                        (ARRAY_SIZE(vmxnet3_rq_dev_stats) +
 177                         ARRAY_SIZE(vmxnet3_rq_driver_stats)) *
 178                        adapter->num_rx_queues +
 179                         ARRAY_SIZE(vmxnet3_global_stats);
 180         default:
 181                 return -EOPNOTSUPP;
 182         }
 183 }
 184
 185
 186 /* Should be multiple of 4 */
 187 #define NUM_TX_REGS     8
 188 #define NUM_RX_REGS     12
 189
 190 static int
 191 vmxnet3_get_regs_len(struct net_device *netdev)
 192 {
 193         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 194         return (adapter->num_tx_queues * NUM_TX_REGS * sizeof(u32) +
 195                 adapter->num_rx_queues * NUM_RX_REGS * sizeof(u32));
 196 }
 197
 198
 199 static void
 200 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 201 {
 202         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 203
 204         strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
 205
 206         strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
 207                 sizeof(drvinfo->version));
 208
 209         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 210                 sizeof(drvinfo->bus_info));
 211         drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
 212         drvinfo->testinfo_len = 0;
 213         drvinfo->eedump_len   = 0;
 214         drvinfo->regdump_len  = vmxnet3_get_regs_len(netdev);
 215 }
 216
 217
 218 static void
 219 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 220 {
 221          struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 222         if (stringset == ETH_SS_STATS) {
 223                 int i, j;
 224                 for (j = 0; j < adapter->num_tx_queues; j++) {
 225                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
 226                                 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
 227                                        ETH_GSTRING_LEN);
 228                                 buf += ETH_GSTRING_LEN;
 229                         }
 230                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
 231                              i++) {
 232                                 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
 233                                        ETH_GSTRING_LEN);
 234                                 buf += ETH_GSTRING_LEN;
 235                         }
 236                 }
 237
 238                 for (j = 0; j < adapter->num_rx_queues; j++) {
 239                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
 240                                 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
 241                                        ETH_GSTRING_LEN);
 242                                 buf += ETH_GSTRING_LEN;
 243                         }
 244                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
 245                              i++) {
 246                                 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
 247                                        ETH_GSTRING_LEN);
 248                                 buf += ETH_GSTRING_LEN;
 249                         }
 250                 }
 251
 252                 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
 253                         memcpy(buf, vmxnet3_global_stats[i].desc,
 254                                 ETH_GSTRING_LEN);
 255                         buf += ETH_GSTRING_LEN;
 256                 }
 257         }
 258 }
 259
 260 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
 261 {
 262         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 263         unsigned long flags;
 264         netdev_features_t changed = features ^ netdev->features;
 265
 266         if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_RX)) {
 267                 if (features & NETIF_F_RXCSUM)
 268                         adapter->shared->devRead.misc.uptFeatures |=
 269                         UPT1_F_RXCSUM;
 270                 else
 271                         adapter->shared->devRead.misc.uptFeatures &=
 272                         ~UPT1_F_RXCSUM;
 273
 274                 /* update harware LRO capability accordingly */
 275                 if (features & NETIF_F_LRO)
 276                         adapter->shared->devRead.misc.uptFeatures |=
 277                                                         UPT1_F_LRO;
 278                 else
 279                         adapter->shared->devRead.misc.uptFeatures &=
 280                                                         ~UPT1_F_LRO;
 281
 282                 if (features & NETIF_F_HW_VLAN_RX)
 283                         adapter->shared->devRead.misc.uptFeatures |=
 284                         UPT1_F_RXVLAN;
 285                 else
 286                         adapter->shared->devRead.misc.uptFeatures &=
 287                         ~UPT1_F_RXVLAN;
 288
 289                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 290                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 291                                        VMXNET3_CMD_UPDATE_FEATURE);
 292                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 293         }
 294         return 0;
 295 }
 296
 297 static void
 298 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 299                           struct ethtool_stats *stats, u64  *buf)
 300 {
 301         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 302         unsigned long flags;
 303         u8 *base;
 304         int i;
 305         int j = 0;
 306
 307         spin_lock_irqsave(&adapter->cmd_lock, flags);
 308         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 309         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 310
 311         /* this does assume each counter is 64-bit wide */
 312         for (j = 0; j < adapter->num_tx_queues; j++) {
 313                 base = (u8 *)&adapter->tqd_start[j].stats;
 314                 *buf++ = (u64)j;
 315                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 316                         *buf++ = *(u64 *)(base +
 317                                           vmxnet3_tq_dev_stats[i].offset);
 318
 319                 base = (u8 *)&adapter->tx_queue[j].stats;
 320                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 321                         *buf++ = *(u64 *)(base +
 322                                           vmxnet3_tq_driver_stats[i].offset);
 323         }
 324
 325         for (j = 0; j < adapter->num_tx_queues; j++) {
 326                 base = (u8 *)&adapter->rqd_start[j].stats;
 327                 *buf++ = (u64) j;
 328                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 329                         *buf++ = *(u64 *)(base +
 330                                           vmxnet3_rq_dev_stats[i].offset);
 331
 332                 base = (u8 *)&adapter->rx_queue[j].stats;
 333                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 334                         *buf++ = *(u64 *)(base +
 335                                           vmxnet3_rq_driver_stats[i].offset);
 336         }
 337
 338         base = (u8 *)adapter;
 339         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 340                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 341 }
 342
 343
 344 static void
 345 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 346 {
 347         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 348         u32 *buf = p;
 349         int i = 0, j = 0;
 350
 351         memset(p, 0, vmxnet3_get_regs_len(netdev));
 352
 353         regs->version = 1;
 354
 355         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 356
 357         /* make each ring use multiple of 16 bytes */
 358         for (i = 0; i < adapter->num_tx_queues; i++) {
 359                 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill;
 360                 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp;
 361                 buf[j++] = adapter->tx_queue[i].tx_ring.gen;
 362                 buf[j++] = 0;
 363
 364                 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc;
 365                 buf[j++] = adapter->tx_queue[i].comp_ring.gen;
 366                 buf[j++] = adapter->tx_queue[i].stopped;
 367                 buf[j++] = 0;
 368         }
 369
 370         for (i = 0; i < adapter->num_rx_queues; i++) {
 371                 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill;
 372                 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp;
 373                 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen;
 374                 buf[j++] = 0;
 375
 376                 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill;
 377                 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp;
 378                 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen;
 379                 buf[j++] = 0;
 380
 381                 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc;
 382                 buf[j++] = adapter->rx_queue[i].comp_ring.gen;
 383                 buf[j++] = 0;
 384                 buf[j++] = 0;
 385         }
 386
 387 }
 388
 389
 390 static void
 391 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 392 {
 393         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 394
 395         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 396         wol->wolopts = adapter->wol;
 397 }
 398
 399
 400 static int
 401 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 402 {
 403         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 404
 405         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 406                             WAKE_MAGICSECURE)) {
 407                 return -EOPNOTSUPP;
 408         }
 409
 410         adapter->wol = wol->wolopts;
 411
 412         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 413
 414         return 0;
 415 }
 416
 417
 418 static int
 419 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 420 {
 421         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 422
 423         ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
 424                           SUPPORTED_TP;
 425         ecmd->advertising = ADVERTISED_TP;
 426         ecmd->port = PORT_TP;
 427         ecmd->transceiver = XCVR_INTERNAL;
 428
 429         if (adapter->link_speed) {
 430                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
 431                 ecmd->duplex = DUPLEX_FULL;
 432         } else {
 433                 ethtool_cmd_speed_set(ecmd, -1);
 434                 ecmd->duplex = -1;
 435         }
 436         return 0;
 437 }
 438
 439
 440 static void
 441 vmxnet3_get_ringparam(struct net_device *netdev,
 442                       struct ethtool_ringparam *param)
 443 {
 444         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 445
 446         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 447         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 448         param->rx_mini_max_pending = 0;
 449         param->rx_jumbo_max_pending = 0;
 450
 451         param->rx_pending = adapter->rx_queue[0].rx_ring[0].size;
 452         param->tx_pending = adapter->tx_queue[0].tx_ring.size;
 453         param->rx_mini_pending = 0;
 454         param->rx_jumbo_pending = 0;
 455 }
 456
 457
 458 static int
 459 vmxnet3_set_ringparam(struct net_device *netdev,
 460                       struct ethtool_ringparam *param)
 461 {
 462         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 463         u32 new_tx_ring_size, new_rx_ring_size;
 464         u32 sz;
 465         int err = 0;
 466
 467         if (param->tx_pending == 0 || param->tx_pending >
 468                                                 VMXNET3_TX_RING_MAX_SIZE)
 469                 return -EINVAL;
 470
 471         if (param->rx_pending == 0 || param->rx_pending >
 472                                                 VMXNET3_RX_RING_MAX_SIZE)
 473                 return -EINVAL;
 474
 475
 476         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 477         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 478                                                         ~VMXNET3_RING_SIZE_MASK;
 479         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 480                                  VMXNET3_TX_RING_MAX_SIZE);
 481         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 482                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 483                 return -EINVAL;
 484
 485         /* ring0 has to be a multiple of
 486          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 487          */
 488         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 489         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 490         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 491                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 492         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 493                                                            sz) != 0)
 494                 return -EINVAL;
 495
 496         if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size &&
 497             new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) {
 498                 return 0;
 499         }
 500
 501         /*
 502          * Reset_work may be in the middle of resetting the device, wait for its
 503          * completion.
 504          */
 505         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 506                 msleep(1);
 507
 508         if (netif_running(netdev)) {
 509                 vmxnet3_quiesce_dev(adapter);
 510                 vmxnet3_reset_dev(adapter);
 511
 512                 /* recreate the rx queue and the tx queue based on the
 513                  * new sizes */
 514                 vmxnet3_tq_destroy_all(adapter);
 515                 vmxnet3_rq_destroy_all(adapter);
 516
 517                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 518                         new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE);
 519
 520                 if (err) {
 521                         /* failed, most likely because of OOM, try default
 522                          * size */
 523                         netdev_err(netdev, "failed to apply new sizes, "
 524                                    "try the default ones\n");
 525                         err = vmxnet3_create_queues(adapter,
 526                                                     VMXNET3_DEF_TX_RING_SIZE,
 527                                                     VMXNET3_DEF_RX_RING_SIZE,
 528                                                     VMXNET3_DEF_RX_RING_SIZE);
 529                         if (err) {
 530                                 netdev_err(netdev, "failed to create queues "
 531                                            "with default sizes. Closing it\n");
 532                                 goto out;
 533                         }
 534                 }
 535
 536                 err = vmxnet3_activate_dev(adapter);
 537                 if (err)
 538                         netdev_err(netdev, "failed to re-activate, error %d."
 539                                    " Closing it\n", err);
 540         }
 541
 542 out:
 543         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 544         if (err)
 545                 vmxnet3_force_close(adapter);
 546
 547         return err;
 548 }
 549
 550
 551 static int
 552 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 553                   u32 *rules)
 554 {
 555         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 556         switch (info->cmd) {
 557         case ETHTOOL_GRXRINGS:
 558                 info->data = adapter->num_rx_queues;
 559                 return 0;
 560         }
 561         return -EOPNOTSUPP;
 562 }
 563
 564 #ifdef VMXNET3_RSS
 565 static u32
 566 vmxnet3_get_rss_indir_size(struct net_device *netdev)
 567 {
 568         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 569         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 570
 571         return rssConf->indTableSize;
 572 }
 573
 574 static int
 575 vmxnet3_get_rss_indir(struct net_device *netdev, u32 *p)
 576 {
 577         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 578         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 579         unsigned int n = rssConf->indTableSize;
 580
 581         while (n--)
 582                 p[n] = rssConf->indTable[n];
 583         return 0;
 584
 585 }
 586
 587 static int
 588 vmxnet3_set_rss_indir(struct net_device *netdev, const u32 *p)
 589 {
 590         unsigned int i;
 591         unsigned long flags;
 592         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 593         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 594
 595         for (i = 0; i < rssConf->indTableSize; i++)
 596                 rssConf->indTable[i] = p[i];
 597
 598         spin_lock_irqsave(&adapter->cmd_lock, flags);
 599         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 600                                VMXNET3_CMD_UPDATE_RSSIDT);
 601         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 602
 603         return 0;
 604
 605 }
 606 #endif
 607
 608 static const struct ethtool_ops vmxnet3_ethtool_ops = {
 609         .get_settings      = vmxnet3_get_settings,
 610         .get_drvinfo       = vmxnet3_get_drvinfo,
 611         .get_regs_len      = vmxnet3_get_regs_len,
 612         .get_regs          = vmxnet3_get_regs,
 613         .get_wol           = vmxnet3_get_wol,
 614         .set_wol           = vmxnet3_set_wol,
 615         .get_link          = ethtool_op_get_link,
 616         .get_strings       = vmxnet3_get_strings,
 617         .get_sset_count    = vmxnet3_get_sset_count,
 618         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
 619         .get_ringparam     = vmxnet3_get_ringparam,
 620         .set_ringparam     = vmxnet3_set_ringparam,
 621         .get_rxnfc         = vmxnet3_get_rxnfc,
 622 #ifdef VMXNET3_RSS
 623         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
 624         .get_rxfh_indir    = vmxnet3_get_rss_indir,
 625         .set_rxfh_indir    = vmxnet3_set_rss_indir,
 626 #endif
 627 };
 628
 629 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
 630 {
 631         SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops);
 632 }