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         drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS);
 218         drvinfo->testinfo_len = 0;
 219         drvinfo->eedump_len   = 0;
 220         drvinfo->regdump_len  = vmxnet3_get_regs_len(netdev);
 221 }
 222
 223
 224 static void
 225 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 226 {
 227          struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 228         if (stringset == ETH_SS_STATS) {
 229                 int i, j;
 230                 for (j = 0; j < adapter->num_tx_queues; j++) {
 231                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
 232                                 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
 233                                        ETH_GSTRING_LEN);
 234                                 buf += ETH_GSTRING_LEN;
 235                         }
 236                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
 237                              i++) {
 238                                 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
 239                                        ETH_GSTRING_LEN);
 240                                 buf += ETH_GSTRING_LEN;
 241                         }
 242                 }
 243
 244                 for (j = 0; j < adapter->num_rx_queues; j++) {
 245                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
 246                                 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
 247                                        ETH_GSTRING_LEN);
 248                                 buf += ETH_GSTRING_LEN;
 249                         }
 250                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
 251                              i++) {
 252                                 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
 253                                        ETH_GSTRING_LEN);
 254                                 buf += ETH_GSTRING_LEN;
 255                         }
 256                 }
 257
 258                 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
 259                         memcpy(buf, vmxnet3_global_stats[i].desc,
 260                                 ETH_GSTRING_LEN);
 261                         buf += ETH_GSTRING_LEN;
 262                 }
 263         }
 264 }
 265
 266 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
 267 {
 268         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 269         unsigned long flags;
 270         netdev_features_t changed = features ^ netdev->features;
 271
 272         if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
 273                        NETIF_F_HW_VLAN_CTAG_RX)) {
 274                 if (features & NETIF_F_RXCSUM)
 275                         adapter->shared->devRead.misc.uptFeatures |=
 276                         UPT1_F_RXCSUM;
 277                 else
 278                         adapter->shared->devRead.misc.uptFeatures &=
 279                         ~UPT1_F_RXCSUM;
 280
 281                 /* update hardware LRO capability accordingly */
 282                 if (features & NETIF_F_LRO)
 283                         adapter->shared->devRead.misc.uptFeatures |=
 284                                                         UPT1_F_LRO;
 285                 else
 286                         adapter->shared->devRead.misc.uptFeatures &=
 287                                                         ~UPT1_F_LRO;
 288
 289                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
 290                         adapter->shared->devRead.misc.uptFeatures |=
 291                         UPT1_F_RXVLAN;
 292                 else
 293                         adapter->shared->devRead.misc.uptFeatures &=
 294                         ~UPT1_F_RXVLAN;
 295
 296                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 297                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 298                                        VMXNET3_CMD_UPDATE_FEATURE);
 299                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 300         }
 301         return 0;
 302 }
 303
 304 static void
 305 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 306                           struct ethtool_stats *stats, u64  *buf)
 307 {
 308         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 309         unsigned long flags;
 310         u8 *base;
 311         int i;
 312         int j = 0;
 313
 314         spin_lock_irqsave(&adapter->cmd_lock, flags);
 315         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 316         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 317
 318         /* this does assume each counter is 64-bit wide */
 319         for (j = 0; j < adapter->num_tx_queues; j++) {
 320                 base = (u8 *)&adapter->tqd_start[j].stats;
 321                 *buf++ = (u64)j;
 322                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 323                         *buf++ = *(u64 *)(base +
 324                                           vmxnet3_tq_dev_stats[i].offset);
 325
 326                 base = (u8 *)&adapter->tx_queue[j].stats;
 327                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 328                         *buf++ = *(u64 *)(base +
 329                                           vmxnet3_tq_driver_stats[i].offset);
 330         }
 331
 332         for (j = 0; j < adapter->num_rx_queues; j++) {
 333                 base = (u8 *)&adapter->rqd_start[j].stats;
 334                 *buf++ = (u64) j;
 335                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 336                         *buf++ = *(u64 *)(base +
 337                                           vmxnet3_rq_dev_stats[i].offset);
 338
 339                 base = (u8 *)&adapter->rx_queue[j].stats;
 340                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 341                         *buf++ = *(u64 *)(base +
 342                                           vmxnet3_rq_driver_stats[i].offset);
 343         }
 344
 345         base = (u8 *)adapter;
 346         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 347                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 348 }
 349
 350
 351 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 352  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 353  * Therefore, if any registers are added, removed or modified, then a version
 354  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 355  * --register-dump would be required.
 356  */
 357 static void
 358 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 359 {
 360         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 361         u32 *buf = p;
 362         int i = 0, j = 0;
 363
 364         memset(p, 0, vmxnet3_get_regs_len(netdev));
 365
 366         regs->version = 2;
 367
 368         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 369
 370         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
 371         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
 372         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
 373         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
 374         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 375         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
 376         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
 377         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
 378         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
 379
 380         buf[j++] = adapter->intr.num_intrs;
 381         for (i = 0; i < adapter->intr.num_intrs; i++) {
 382                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
 383                                                  + i * VMXNET3_REG_ALIGN);
 384         }
 385
 386         buf[j++] = adapter->num_tx_queues;
 387         for (i = 0; i < adapter->num_tx_queues; i++) {
 388                 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
 389
 390                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
 391                                                  i * VMXNET3_REG_ALIGN);
 392
 393                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
 394                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
 395                 buf[j++] = tq->tx_ring.size;
 396                 buf[j++] = tq->tx_ring.next2fill;
 397                 buf[j++] = tq->tx_ring.next2comp;
 398                 buf[j++] = tq->tx_ring.gen;
 399
 400                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
 401                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
 402                 buf[j++] = tq->data_ring.size;
 403                 /* transmit data ring buffer size */
 404                 buf[j++] = VMXNET3_HDR_COPY_SIZE;
 405
 406                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
 407                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
 408                 buf[j++] = tq->comp_ring.size;
 409                 buf[j++] = tq->comp_ring.next2proc;
 410                 buf[j++] = tq->comp_ring.gen;
 411
 412                 buf[j++] = tq->stopped;
 413         }
 414
 415         buf[j++] = adapter->num_rx_queues;
 416         for (i = 0; i < adapter->num_rx_queues; i++) {
 417                 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
 418
 419                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
 420                                                   i * VMXNET3_REG_ALIGN);
 421                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
 422                                                   i * VMXNET3_REG_ALIGN);
 423
 424                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
 425                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
 426                 buf[j++] = rq->rx_ring[0].size;
 427                 buf[j++] = rq->rx_ring[0].next2fill;
 428                 buf[j++] = rq->rx_ring[0].next2comp;
 429                 buf[j++] = rq->rx_ring[0].gen;
 430
 431                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
 432                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
 433                 buf[j++] = rq->rx_ring[1].size;
 434                 buf[j++] = rq->rx_ring[1].next2fill;
 435                 buf[j++] = rq->rx_ring[1].next2comp;
 436                 buf[j++] = rq->rx_ring[1].gen;
 437
 438                 /* receive data ring */
 439                 buf[j++] = 0;
 440                 buf[j++] = 0;
 441                 buf[j++] = 0;
 442                 buf[j++] = 0;
 443
 444                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
 445                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
 446                 buf[j++] = rq->comp_ring.size;
 447                 buf[j++] = rq->comp_ring.next2proc;
 448                 buf[j++] = rq->comp_ring.gen;
 449         }
 450 }
 451
 452
 453 static void
 454 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 455 {
 456         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 457
 458         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 459         wol->wolopts = adapter->wol;
 460 }
 461
 462
 463 static int
 464 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 465 {
 466         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 467
 468         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 469                             WAKE_MAGICSECURE)) {
 470                 return -EOPNOTSUPP;
 471         }
 472
 473         adapter->wol = wol->wolopts;
 474
 475         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 476
 477         return 0;
 478 }
 479
 480
 481 static int
 482 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 483 {
 484         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 485
 486         ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full |
 487                           SUPPORTED_TP;
 488         ecmd->advertising = ADVERTISED_TP;
 489         ecmd->port = PORT_TP;
 490         ecmd->transceiver = XCVR_INTERNAL;
 491
 492         if (adapter->link_speed) {
 493                 ethtool_cmd_speed_set(ecmd, adapter->link_speed);
 494                 ecmd->duplex = DUPLEX_FULL;
 495         } else {
 496                 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 497                 ecmd->duplex = DUPLEX_UNKNOWN;
 498         }
 499         return 0;
 500 }
 501
 502
 503 static void
 504 vmxnet3_get_ringparam(struct net_device *netdev,
 505                       struct ethtool_ringparam *param)
 506 {
 507         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 508
 509         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 510         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 511         param->rx_mini_max_pending = 0;
 512         param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
 513
 514         param->rx_pending = adapter->rx_ring_size;
 515         param->tx_pending = adapter->tx_ring_size;
 516         param->rx_mini_pending = 0;
 517         param->rx_jumbo_pending = adapter->rx_ring2_size;
 518 }
 519
 520
 521 static int
 522 vmxnet3_set_ringparam(struct net_device *netdev,
 523                       struct ethtool_ringparam *param)
 524 {
 525         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 526         u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
 527         u32 sz;
 528         int err = 0;
 529
 530         if (param->tx_pending == 0 || param->tx_pending >
 531                                                 VMXNET3_TX_RING_MAX_SIZE)
 532                 return -EINVAL;
 533
 534         if (param->rx_pending == 0 || param->rx_pending >
 535                                                 VMXNET3_RX_RING_MAX_SIZE)
 536                 return -EINVAL;
 537
 538         if (param->rx_jumbo_pending == 0 ||
 539             param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
 540                 return -EINVAL;
 541
 542         /* if adapter not yet initialized, do nothing */
 543         if (adapter->rx_buf_per_pkt == 0) {
 544                 netdev_err(netdev, "adapter not completely initialized, "
 545                            "ring size cannot be changed yet\n");
 546                 return -EOPNOTSUPP;
 547         }
 548
 549         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 550         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 551                                                         ~VMXNET3_RING_SIZE_MASK;
 552         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 553                                  VMXNET3_TX_RING_MAX_SIZE);
 554         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 555                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 556                 return -EINVAL;
 557
 558         /* ring0 has to be a multiple of
 559          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 560          */
 561         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 562         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 563         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 564                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 565         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 566                                                            sz) != 0)
 567                 return -EINVAL;
 568
 569         /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
 570         new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
 571                                 ~VMXNET3_RING_SIZE_MASK;
 572         new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
 573                                   VMXNET3_RX_RING2_MAX_SIZE);
 574
 575         if (new_tx_ring_size == adapter->tx_ring_size &&
 576             new_rx_ring_size == adapter->rx_ring_size &&
 577             new_rx_ring2_size == adapter->rx_ring2_size) {
 578                 return 0;
 579         }
 580
 581         /*
 582          * Reset_work may be in the middle of resetting the device, wait for its
 583          * completion.
 584          */
 585         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 586                 msleep(1);
 587
 588         if (netif_running(netdev)) {
 589                 vmxnet3_quiesce_dev(adapter);
 590                 vmxnet3_reset_dev(adapter);
 591
 592                 /* recreate the rx queue and the tx queue based on the
 593                  * new sizes */
 594                 vmxnet3_tq_destroy_all(adapter);
 595                 vmxnet3_rq_destroy_all(adapter);
 596
 597                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 598                         new_rx_ring_size, new_rx_ring2_size);
 599
 600                 if (err) {
 601                         /* failed, most likely because of OOM, try default
 602                          * size */
 603                         netdev_err(netdev, "failed to apply new sizes, "
 604                                    "try the default ones\n");
 605                         new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
 606                         new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
 607                         new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
 608                         err = vmxnet3_create_queues(adapter,
 609                                                     new_tx_ring_size,
 610                                                     new_rx_ring_size,
 611                                                     new_rx_ring2_size);
 612                         if (err) {
 613                                 netdev_err(netdev, "failed to create queues "
 614                                            "with default sizes. Closing it\n");
 615                                 goto out;
 616                         }
 617                 }
 618
 619                 err = vmxnet3_activate_dev(adapter);
 620                 if (err)
 621                         netdev_err(netdev, "failed to re-activate, error %d."
 622                                    " Closing it\n", err);
 623         }
 624         adapter->tx_ring_size = new_tx_ring_size;
 625         adapter->rx_ring_size = new_rx_ring_size;
 626         adapter->rx_ring2_size = new_rx_ring2_size;
 627
 628 out:
 629         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 630         if (err)
 631                 vmxnet3_force_close(adapter);
 632
 633         return err;
 634 }
 635
 636
 637 static int
 638 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 639                   u32 *rules)
 640 {
 641         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 642         switch (info->cmd) {
 643         case ETHTOOL_GRXRINGS:
 644                 info->data = adapter->num_rx_queues;
 645                 return 0;
 646         }
 647         return -EOPNOTSUPP;
 648 }
 649
 650 #ifdef VMXNET3_RSS
 651 static u32
 652 vmxnet3_get_rss_indir_size(struct net_device *netdev)
 653 {
 654         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 655         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 656
 657         return rssConf->indTableSize;
 658 }
 659
 660 static int
 661 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
 662 {
 663         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 664         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 665         unsigned int n = rssConf->indTableSize;
 666
 667         if (hfunc)
 668                 *hfunc = ETH_RSS_HASH_TOP;
 669         if (!p)
 670                 return 0;
 671         while (n--)
 672                 p[n] = rssConf->indTable[n];
 673         return 0;
 674
 675 }
 676
 677 static int
 678 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
 679                 const u8 hfunc)
 680 {
 681         unsigned int i;
 682         unsigned long flags;
 683         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 684         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 685
 686         /* We do not allow change in unsupported parameters */
 687         if (key ||
 688             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
 689                 return -EOPNOTSUPP;
 690         if (!p)
 691                 return 0;
 692         for (i = 0; i < rssConf->indTableSize; i++)
 693                 rssConf->indTable[i] = p[i];
 694
 695         spin_lock_irqsave(&adapter->cmd_lock, flags);
 696         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 697                                VMXNET3_CMD_UPDATE_RSSIDT);
 698         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 699
 700         return 0;
 701
 702 }
 703 #endif
 704
 705 static const struct ethtool_ops vmxnet3_ethtool_ops = {
 706         .get_settings      = vmxnet3_get_settings,
 707         .get_drvinfo       = vmxnet3_get_drvinfo,
 708         .get_regs_len      = vmxnet3_get_regs_len,
 709         .get_regs          = vmxnet3_get_regs,
 710         .get_wol           = vmxnet3_get_wol,
 711         .set_wol           = vmxnet3_set_wol,
 712         .get_link          = ethtool_op_get_link,
 713         .get_strings       = vmxnet3_get_strings,
 714         .get_sset_count    = vmxnet3_get_sset_count,
 715         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
 716         .get_ringparam     = vmxnet3_get_ringparam,
 717         .set_ringparam     = vmxnet3_set_ringparam,
 718         .get_rxnfc         = vmxnet3_get_rxnfc,
 719 #ifdef VMXNET3_RSS
 720         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
 721         .get_rxfh          = vmxnet3_get_rss,
 722         .set_rxfh          = vmxnet3_set_rss,
 723 #endif
 724 };
 725
 726 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
 727 {
 728         netdev->ethtool_ops = &vmxnet3_ethtool_ops;
 729 }