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 /* global 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 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 187  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 188  * Therefore, if any registers are added, removed or modified, then a version
 189  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 190  * --register-dump would be required.
 191  */
 192 static int
 193 vmxnet3_get_regs_len(struct net_device *netdev)
 194 {
 195         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 196
 197         return ((9 /* BAR1 registers */ +
 198                 (1 + adapter->intr.num_intrs) +
 199                 (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) +
 200                 (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) *
 201                 sizeof(u32));
 202 }
 203
 204
 205 static void
 206 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 207 {
 208         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 209
 210         strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
 211
 212         strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
 213                 sizeof(drvinfo->version));
 214
 215         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 216                 sizeof(drvinfo->bus_info));
 217 }
 218
 219
 220 static void
 221 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 222 {
 223          struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 224         if (stringset == ETH_SS_STATS) {
 225                 int i, j;
 226                 for (j = 0; j < adapter->num_tx_queues; j++) {
 227                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
 228                                 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
 229                                        ETH_GSTRING_LEN);
 230                                 buf += ETH_GSTRING_LEN;
 231                         }
 232                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
 233                              i++) {
 234                                 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
 235                                        ETH_GSTRING_LEN);
 236                                 buf += ETH_GSTRING_LEN;
 237                         }
 238                 }
 239
 240                 for (j = 0; j < adapter->num_rx_queues; j++) {
 241                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
 242                                 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
 243                                        ETH_GSTRING_LEN);
 244                                 buf += ETH_GSTRING_LEN;
 245                         }
 246                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
 247                              i++) {
 248                                 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
 249                                        ETH_GSTRING_LEN);
 250                                 buf += ETH_GSTRING_LEN;
 251                         }
 252                 }
 253
 254                 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
 255                         memcpy(buf, vmxnet3_global_stats[i].desc,
 256                                 ETH_GSTRING_LEN);
 257                         buf += ETH_GSTRING_LEN;
 258                 }
 259         }
 260 }
 261
 262 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
 263 {
 264         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 265         unsigned long flags;
 266         netdev_features_t changed = features ^ netdev->features;
 267
 268         if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
 269                        NETIF_F_HW_VLAN_CTAG_RX)) {
 270                 if (features & NETIF_F_RXCSUM)
 271                         adapter->shared->devRead.misc.uptFeatures |=
 272                         UPT1_F_RXCSUM;
 273                 else
 274                         adapter->shared->devRead.misc.uptFeatures &=
 275                         ~UPT1_F_RXCSUM;
 276
 277                 /* update hardware LRO capability accordingly */
 278                 if (features & NETIF_F_LRO)
 279                         adapter->shared->devRead.misc.uptFeatures |=
 280                                                         UPT1_F_LRO;
 281                 else
 282                         adapter->shared->devRead.misc.uptFeatures &=
 283                                                         ~UPT1_F_LRO;
 284
 285                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
 286                         adapter->shared->devRead.misc.uptFeatures |=
 287                         UPT1_F_RXVLAN;
 288                 else
 289                         adapter->shared->devRead.misc.uptFeatures &=
 290                         ~UPT1_F_RXVLAN;
 291
 292                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 293                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 294                                        VMXNET3_CMD_UPDATE_FEATURE);
 295                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 296         }
 297         return 0;
 298 }
 299
 300 static void
 301 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 302                           struct ethtool_stats *stats, u64  *buf)
 303 {
 304         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 305         unsigned long flags;
 306         u8 *base;
 307         int i;
 308         int j = 0;
 309
 310         spin_lock_irqsave(&adapter->cmd_lock, flags);
 311         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 312         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 313
 314         /* this does assume each counter is 64-bit wide */
 315         for (j = 0; j < adapter->num_tx_queues; j++) {
 316                 base = (u8 *)&adapter->tqd_start[j].stats;
 317                 *buf++ = (u64)j;
 318                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 319                         *buf++ = *(u64 *)(base +
 320                                           vmxnet3_tq_dev_stats[i].offset);
 321
 322                 base = (u8 *)&adapter->tx_queue[j].stats;
 323                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 324                         *buf++ = *(u64 *)(base +
 325                                           vmxnet3_tq_driver_stats[i].offset);
 326         }
 327
 328         for (j = 0; j < adapter->num_rx_queues; j++) {
 329                 base = (u8 *)&adapter->rqd_start[j].stats;
 330                 *buf++ = (u64) j;
 331                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 332                         *buf++ = *(u64 *)(base +
 333                                           vmxnet3_rq_dev_stats[i].offset);
 334
 335                 base = (u8 *)&adapter->rx_queue[j].stats;
 336                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 337                         *buf++ = *(u64 *)(base +
 338                                           vmxnet3_rq_driver_stats[i].offset);
 339         }
 340
 341         base = (u8 *)adapter;
 342         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 343                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 344 }
 345
 346
 347 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 348  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 349  * Therefore, if any registers are added, removed or modified, then a version
 350  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 351  * --register-dump would be required.
 352  */
 353 static void
 354 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 355 {
 356         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 357         u32 *buf = p;
 358         int i = 0, j = 0;
 359
 360         memset(p, 0, vmxnet3_get_regs_len(netdev));
 361
 362         regs->version = 2;
 363
 364         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 365
 366         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
 367         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
 368         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
 369         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
 370         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 371         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
 372         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
 373         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
 374         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
 375
 376         buf[j++] = adapter->intr.num_intrs;
 377         for (i = 0; i < adapter->intr.num_intrs; i++) {
 378                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
 379                                                  + i * VMXNET3_REG_ALIGN);
 380         }
 381
 382         buf[j++] = adapter->num_tx_queues;
 383         for (i = 0; i < adapter->num_tx_queues; i++) {
 384                 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
 385
 386                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
 387                                                  i * VMXNET3_REG_ALIGN);
 388
 389                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
 390                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
 391                 buf[j++] = tq->tx_ring.size;
 392                 buf[j++] = tq->tx_ring.next2fill;
 393                 buf[j++] = tq->tx_ring.next2comp;
 394                 buf[j++] = tq->tx_ring.gen;
 395
 396                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
 397                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
 398                 buf[j++] = tq->data_ring.size;
 399                 /* transmit data ring buffer size */
 400                 buf[j++] = VMXNET3_HDR_COPY_SIZE;
 401
 402                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
 403                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
 404                 buf[j++] = tq->comp_ring.size;
 405                 buf[j++] = tq->comp_ring.next2proc;
 406                 buf[j++] = tq->comp_ring.gen;
 407
 408                 buf[j++] = tq->stopped;
 409         }
 410
 411         buf[j++] = adapter->num_rx_queues;
 412         for (i = 0; i < adapter->num_rx_queues; i++) {
 413                 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
 414
 415                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
 416                                                   i * VMXNET3_REG_ALIGN);
 417                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
 418                                                   i * VMXNET3_REG_ALIGN);
 419
 420                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
 421                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
 422                 buf[j++] = rq->rx_ring[0].size;
 423                 buf[j++] = rq->rx_ring[0].next2fill;
 424                 buf[j++] = rq->rx_ring[0].next2comp;
 425                 buf[j++] = rq->rx_ring[0].gen;
 426
 427                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
 428                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
 429                 buf[j++] = rq->rx_ring[1].size;
 430                 buf[j++] = rq->rx_ring[1].next2fill;
 431                 buf[j++] = rq->rx_ring[1].next2comp;
 432                 buf[j++] = rq->rx_ring[1].gen;
 433
 434                 /* receive data ring */
 435                 buf[j++] = 0;
 436                 buf[j++] = 0;
 437                 buf[j++] = 0;
 438                 buf[j++] = 0;
 439
 440                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
 441                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
 442                 buf[j++] = rq->comp_ring.size;
 443                 buf[j++] = rq->comp_ring.next2proc;
 444                 buf[j++] = rq->comp_ring.gen;
 445         }
 446 }
 447
 448
 449 static void
 450 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 451 {
 452         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 453
 454         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 455         wol->wolopts = adapter->wol;
 456 }
 457
 458
 459 static int
 460 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 461 {
 462         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 463
 464         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 465                             WAKE_MAGICSECURE)) {
 466                 return -EOPNOTSUPP;
 467         }
 468
 469         adapter->wol = wol->wolopts;
 470
 471         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 472
 473         return 0;
 474 }
 475
 476
 477 static int
 478 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 479 {
 480         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 481
 482         ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
 483                           SUPPORTED_TP;
 484         ecmd->advertising = ADVERTISED_TP;
 485         ecmd->port = PORT_TP;
 486         ecmd->transceiver = XCVR_INTERNAL;
 487
 488         if (adapter->link_speed) {
 489                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
 490                 ecmd->duplex = DUPLEX_FULL;
 491         } else {
 492                 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 493                 ecmd->duplex = DUPLEX_UNKNOWN;
 494         }
 495         return 0;
 496 }
 497
 498
 499 static void
 500 vmxnet3_get_ringparam(struct net_device *netdev,
 501                       struct ethtool_ringparam *param)
 502 {
 503         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 504
 505         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 506         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 507         param->rx_mini_max_pending = 0;
 508         param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
 509
 510         param->rx_pending = adapter->rx_ring_size;
 511         param->tx_pending = adapter->tx_ring_size;
 512         param->rx_mini_pending = 0;
 513         param->rx_jumbo_pending = adapter->rx_ring2_size;
 514 }
 515
 516
 517 static int
 518 vmxnet3_set_ringparam(struct net_device *netdev,
 519                       struct ethtool_ringparam *param)
 520 {
 521         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 522         u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
 523         u32 sz;
 524         int err = 0;
 525
 526         if (param->tx_pending == 0 || param->tx_pending >
 527                                                 VMXNET3_TX_RING_MAX_SIZE)
 528                 return -EINVAL;
 529
 530         if (param->rx_pending == 0 || param->rx_pending >
 531                                                 VMXNET3_RX_RING_MAX_SIZE)
 532                 return -EINVAL;
 533
 534         if (param->rx_jumbo_pending == 0 ||
 535             param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
 536                 return -EINVAL;
 537
 538         /* if adapter not yet initialized, do nothing */
 539         if (adapter->rx_buf_per_pkt == 0) {
 540                 netdev_err(netdev, "adapter not completely initialized, "
 541                            "ring size cannot be changed yet\n");
 542                 return -EOPNOTSUPP;
 543         }
 544
 545         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 546         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 547                                                         ~VMXNET3_RING_SIZE_MASK;
 548         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 549                                  VMXNET3_TX_RING_MAX_SIZE);
 550         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 551                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 552                 return -EINVAL;
 553
 554         /* ring0 has to be a multiple of
 555          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 556          */
 557         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 558         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 559         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 560                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 561         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 562                                                            sz) != 0)
 563                 return -EINVAL;
 564
 565         /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
 566         new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
 567                                 ~VMXNET3_RING_SIZE_MASK;
 568         new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
 569                                   VMXNET3_RX_RING2_MAX_SIZE);
 570
 571         if (new_tx_ring_size == adapter->tx_ring_size &&
 572             new_rx_ring_size == adapter->rx_ring_size &&
 573             new_rx_ring2_size == adapter->rx_ring2_size) {
 574                 return 0;
 575         }
 576
 577         /*
 578          * Reset_work may be in the middle of resetting the device, wait for its
 579          * completion.
 580          */
 581         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 582                 msleep(1);
 583
 584         if (netif_running(netdev)) {
 585                 vmxnet3_quiesce_dev(adapter);
 586                 vmxnet3_reset_dev(adapter);
 587
 588                 /* recreate the rx queue and the tx queue based on the
 589                  * new sizes */
 590                 vmxnet3_tq_destroy_all(adapter);
 591                 vmxnet3_rq_destroy_all(adapter);
 592
 593                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 594                         new_rx_ring_size, new_rx_ring2_size);
 595
 596                 if (err) {
 597                         /* failed, most likely because of OOM, try default
 598                          * size */
 599                         netdev_err(netdev, "failed to apply new sizes, "
 600                                    "try the default ones\n");
 601                         new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
 602                         new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
 603                         new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
 604                         err = vmxnet3_create_queues(adapter,
 605                                                     new_tx_ring_size,
 606                                                     new_rx_ring_size,
 607                                                     new_rx_ring2_size);
 608                         if (err) {
 609                                 netdev_err(netdev, "failed to create queues "
 610                                            "with default sizes. Closing it\n");
 611                                 goto out;
 612                         }
 613                 }
 614
 615                 err = vmxnet3_activate_dev(adapter);
 616                 if (err)
 617                         netdev_err(netdev, "failed to re-activate, error %d."
 618                                    " Closing it\n", err);
 619         }
 620         adapter->tx_ring_size = new_tx_ring_size;
 621         adapter->rx_ring_size = new_rx_ring_size;
 622         adapter->rx_ring2_size = new_rx_ring2_size;
 623
 624 out:
 625         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 626         if (err)
 627                 vmxnet3_force_close(adapter);
 628
 629         return err;
 630 }
 631
 632
 633 static int
 634 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 635                   u32 *rules)
 636 {
 637         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 638         switch (info->cmd) {
 639         case ETHTOOL_GRXRINGS:
 640                 info->data = adapter->num_rx_queues;
 641                 return 0;
 642         }
 643         return -EOPNOTSUPP;
 644 }
 645
 646 #ifdef VMXNET3_RSS
 647 static u32
 648 vmxnet3_get_rss_indir_size(struct net_device *netdev)
 649 {
 650         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 651         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 652
 653         return rssConf->indTableSize;
 654 }
 655
 656 static int
 657 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
 658 {
 659         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 660         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 661         unsigned int n = rssConf->indTableSize;
 662
 663         if (hfunc)
 664                 *hfunc = ETH_RSS_HASH_TOP;
 665         if (!p)
 666                 return 0;
 667         while (n--)
 668                 p[n] = rssConf->indTable[n];
 669         return 0;
 670
 671 }
 672
 673 static int
 674 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
 675                 const u8 hfunc)
 676 {
 677         unsigned int i;
 678         unsigned long flags;
 679         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 680         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 681
 682         /* We do not allow change in unsupported parameters */
 683         if (key ||
 684             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
 685                 return -EOPNOTSUPP;
 686         if (!p)
 687                 return 0;
 688         for (i = 0; i < rssConf->indTableSize; i++)
 689                 rssConf->indTable[i] = p[i];
 690
 691         spin_lock_irqsave(&adapter->cmd_lock, flags);
 692         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 693                                VMXNET3_CMD_UPDATE_RSSIDT);
 694         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 695
 696         return 0;
 697
 698 }
 699 #endif
 700
 701 static const struct ethtool_ops vmxnet3_ethtool_ops = {
 702         .get_settings      = vmxnet3_get_settings,
 703         .get_drvinfo       = vmxnet3_get_drvinfo,
 704         .get_regs_len      = vmxnet3_get_regs_len,
 705         .get_regs          = vmxnet3_get_regs,
 706         .get_wol           = vmxnet3_get_wol,
 707         .set_wol           = vmxnet3_set_wol,
 708         .get_link          = ethtool_op_get_link,
 709         .get_strings       = vmxnet3_get_strings,
 710         .get_sset_count    = vmxnet3_get_sset_count,
 711         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
 712         .get_ringparam     = vmxnet3_get_ringparam,
 713         .set_ringparam     = vmxnet3_set_ringparam,
 714         .get_rxnfc         = vmxnet3_get_rxnfc,
 715 #ifdef VMXNET3_RSS
 716         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
 717         .get_rxfh          = vmxnet3_get_rss,
 718         .set_rxfh          = vmxnet3_set_rss,
 719 #endif
 720 };
 721
 722 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
 723 {
 724         netdev->ethtool_ops = &vmxnet3_ethtool_ops;
 725 }