drivers/net/vmxnet3/vmxnet3_ethtool.c

   1 /*
   2  * Linux driver for VMware's vmxnet3 ethernet NIC.
   3  *
   4  * Copyright (C) 2008-2016, 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: 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 void
 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
 165 static int
 166 vmxnet3_get_sset_count(struct net_device *netdev, int sset)
 167 {
 168         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 169         switch (sset) {
 170         case ETH_SS_STATS:
 171                 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) +
 172                         ARRAY_SIZE(vmxnet3_tq_driver_stats)) *
 173                        adapter->num_tx_queues +
 174                        (ARRAY_SIZE(vmxnet3_rq_dev_stats) +
 175                         ARRAY_SIZE(vmxnet3_rq_driver_stats)) *
 176                        adapter->num_rx_queues +
 177                         ARRAY_SIZE(vmxnet3_global_stats);
 178         default:
 179                 return -EOPNOTSUPP;
 180         }
 181 }
 182
 183
 184 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 185  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 186  * Therefore, if any registers are added, removed or modified, then a version
 187  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 188  * --register-dump would be required.
 189  */
 190 static int
 191 vmxnet3_get_regs_len(struct net_device *netdev)
 192 {
 193         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 194
 195         return ((9 /* BAR1 registers */ +
 196                 (1 + adapter->intr.num_intrs) +
 197                 (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) +
 198                 (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) *
 199                 sizeof(u32));
 200 }
 201
 202
 203 static void
 204 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 205 {
 206         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 207
 208         strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
 209
 210         strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
 211                 sizeof(drvinfo->version));
 212
 213         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 214                 sizeof(drvinfo->bus_info));
 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 |
 267                        NETIF_F_HW_VLAN_CTAG_RX)) {
 268                 if (features & NETIF_F_RXCSUM)
 269                         adapter->shared->devRead.misc.uptFeatures |=
 270                         UPT1_F_RXCSUM;
 271                 else
 272                         adapter->shared->devRead.misc.uptFeatures &=
 273                         ~UPT1_F_RXCSUM;
 274
 275                 /* update hardware LRO capability accordingly */
 276                 if (features & NETIF_F_LRO)
 277                         adapter->shared->devRead.misc.uptFeatures |=
 278                                                         UPT1_F_LRO;
 279                 else
 280                         adapter->shared->devRead.misc.uptFeatures &=
 281                                                         ~UPT1_F_LRO;
 282
 283                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
 284                         adapter->shared->devRead.misc.uptFeatures |=
 285                         UPT1_F_RXVLAN;
 286                 else
 287                         adapter->shared->devRead.misc.uptFeatures &=
 288                         ~UPT1_F_RXVLAN;
 289
 290                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 291                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 292                                        VMXNET3_CMD_UPDATE_FEATURE);
 293                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 294         }
 295         return 0;
 296 }
 297
 298 static void
 299 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 300                           struct ethtool_stats *stats, u64  *buf)
 301 {
 302         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 303         unsigned long flags;
 304         u8 *base;
 305         int i;
 306         int j = 0;
 307
 308         spin_lock_irqsave(&adapter->cmd_lock, flags);
 309         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 310         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 311
 312         /* this does assume each counter is 64-bit wide */
 313         for (j = 0; j < adapter->num_tx_queues; j++) {
 314                 base = (u8 *)&adapter->tqd_start[j].stats;
 315                 *buf++ = (u64)j;
 316                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 317                         *buf++ = *(u64 *)(base +
 318                                           vmxnet3_tq_dev_stats[i].offset);
 319
 320                 base = (u8 *)&adapter->tx_queue[j].stats;
 321                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 322                         *buf++ = *(u64 *)(base +
 323                                           vmxnet3_tq_driver_stats[i].offset);
 324         }
 325
 326         for (j = 0; j < adapter->num_rx_queues; j++) {
 327                 base = (u8 *)&adapter->rqd_start[j].stats;
 328                 *buf++ = (u64) j;
 329                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 330                         *buf++ = *(u64 *)(base +
 331                                           vmxnet3_rq_dev_stats[i].offset);
 332
 333                 base = (u8 *)&adapter->rx_queue[j].stats;
 334                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 335                         *buf++ = *(u64 *)(base +
 336                                           vmxnet3_rq_driver_stats[i].offset);
 337         }
 338
 339         base = (u8 *)adapter;
 340         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 341                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 342 }
 343
 344
 345 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 346  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 347  * Therefore, if any registers are added, removed or modified, then a version
 348  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 349  * --register-dump would be required.
 350  */
 351 static void
 352 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 353 {
 354         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 355         u32 *buf = p;
 356         int i = 0, j = 0;
 357
 358         memset(p, 0, vmxnet3_get_regs_len(netdev));
 359
 360         regs->version = 2;
 361
 362         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 363
 364         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
 365         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
 366         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
 367         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
 368         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 369         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
 370         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
 371         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
 372         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
 373
 374         buf[j++] = adapter->intr.num_intrs;
 375         for (i = 0; i < adapter->intr.num_intrs; i++) {
 376                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
 377                                                  + i * VMXNET3_REG_ALIGN);
 378         }
 379
 380         buf[j++] = adapter->num_tx_queues;
 381         for (i = 0; i < adapter->num_tx_queues; i++) {
 382                 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
 383
 384                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
 385                                                  i * VMXNET3_REG_ALIGN);
 386
 387                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
 388                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
 389                 buf[j++] = tq->tx_ring.size;
 390                 buf[j++] = tq->tx_ring.next2fill;
 391                 buf[j++] = tq->tx_ring.next2comp;
 392                 buf[j++] = tq->tx_ring.gen;
 393
 394                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
 395                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
 396                 buf[j++] = tq->data_ring.size;
 397                 buf[j++] = tq->txdata_desc_size;
 398
 399                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
 400                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
 401                 buf[j++] = tq->comp_ring.size;
 402                 buf[j++] = tq->comp_ring.next2proc;
 403                 buf[j++] = tq->comp_ring.gen;
 404
 405                 buf[j++] = tq->stopped;
 406         }
 407
 408         buf[j++] = adapter->num_rx_queues;
 409         for (i = 0; i < adapter->num_rx_queues; i++) {
 410                 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
 411
 412                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
 413                                                   i * VMXNET3_REG_ALIGN);
 414                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
 415                                                   i * VMXNET3_REG_ALIGN);
 416
 417                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
 418                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
 419                 buf[j++] = rq->rx_ring[0].size;
 420                 buf[j++] = rq->rx_ring[0].next2fill;
 421                 buf[j++] = rq->rx_ring[0].next2comp;
 422                 buf[j++] = rq->rx_ring[0].gen;
 423
 424                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
 425                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
 426                 buf[j++] = rq->rx_ring[1].size;
 427                 buf[j++] = rq->rx_ring[1].next2fill;
 428                 buf[j++] = rq->rx_ring[1].next2comp;
 429                 buf[j++] = rq->rx_ring[1].gen;
 430
 431                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA);
 432                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA);
 433                 buf[j++] = rq->rx_ring[0].size;
 434                 buf[j++] = rq->data_ring.desc_size;
 435
 436                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
 437                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
 438                 buf[j++] = rq->comp_ring.size;
 439                 buf[j++] = rq->comp_ring.next2proc;
 440                 buf[j++] = rq->comp_ring.gen;
 441         }
 442 }
 443
 444
 445 static void
 446 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 447 {
 448         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 449
 450         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 451         wol->wolopts = adapter->wol;
 452 }
 453
 454
 455 static int
 456 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 457 {
 458         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 459
 460         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 461                             WAKE_MAGICSECURE)) {
 462                 return -EOPNOTSUPP;
 463         }
 464
 465         adapter->wol = wol->wolopts;
 466
 467         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 468
 469         return 0;
 470 }
 471
 472
 473 static int
 474 vmxnet3_get_link_ksettings(struct net_device *netdev,
 475                            struct ethtool_link_ksettings *ecmd)
 476 {
 477         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 478
 479         ethtool_link_ksettings_zero_link_mode(ecmd, supported);
 480         ethtool_link_ksettings_add_link_mode(ecmd, supported, 10000baseT_Full);
 481         ethtool_link_ksettings_add_link_mode(ecmd, supported, 1000baseT_Full);
 482         ethtool_link_ksettings_add_link_mode(ecmd, supported, TP);
 483         ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
 484         ethtool_link_ksettings_add_link_mode(ecmd, advertising, TP);
 485         ecmd->base.port = PORT_TP;
 486
 487         if (adapter->link_speed) {
 488                 ecmd->base.speed = adapter->link_speed;
 489                 ecmd->base.duplex = DUPLEX_FULL;
 490         } else {
 491                 ecmd->base.speed = SPEED_UNKNOWN;
 492                 ecmd->base.duplex = DUPLEX_UNKNOWN;
 493         }
 494         return 0;
 495 }
 496
 497
 498 static void
 499 vmxnet3_get_ringparam(struct net_device *netdev,
 500                       struct ethtool_ringparam *param)
 501 {
 502         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 503
 504         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 505         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 506         param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ?
 507                 VMXNET3_RXDATA_DESC_MAX_SIZE : 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 = VMXNET3_VERSION_GE_3(adapter) ?
 513                 adapter->rxdata_desc_size : 0;
 514         param->rx_jumbo_pending = adapter->rx_ring2_size;
 515 }
 516
 517
 518 static int
 519 vmxnet3_set_ringparam(struct net_device *netdev,
 520                       struct ethtool_ringparam *param)
 521 {
 522         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 523         u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
 524         u16 new_rxdata_desc_size;
 525         u32 sz;
 526         int err = 0;
 527
 528         if (param->tx_pending == 0 || param->tx_pending >
 529                                                 VMXNET3_TX_RING_MAX_SIZE)
 530                 return -EINVAL;
 531
 532         if (param->rx_pending == 0 || param->rx_pending >
 533                                                 VMXNET3_RX_RING_MAX_SIZE)
 534                 return -EINVAL;
 535
 536         if (param->rx_jumbo_pending == 0 ||
 537             param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
 538                 return -EINVAL;
 539
 540         /* if adapter not yet initialized, do nothing */
 541         if (adapter->rx_buf_per_pkt == 0) {
 542                 netdev_err(netdev, "adapter not completely initialized, "
 543                            "ring size cannot be changed yet\n");
 544                 return -EOPNOTSUPP;
 545         }
 546
 547         if (VMXNET3_VERSION_GE_3(adapter)) {
 548                 if (param->rx_mini_pending < 0 ||
 549                     param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE) {
 550                         return -EINVAL;
 551                 }
 552         } else if (param->rx_mini_pending != 0) {
 553                 return -EINVAL;
 554         }
 555
 556         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 557         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 558                                                         ~VMXNET3_RING_SIZE_MASK;
 559         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 560                                  VMXNET3_TX_RING_MAX_SIZE);
 561         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 562                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 563                 return -EINVAL;
 564
 565         /* ring0 has to be a multiple of
 566          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 567          */
 568         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 569         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 570         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 571                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 572         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 573                                                            sz) != 0)
 574                 return -EINVAL;
 575
 576         /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
 577         new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
 578                                 ~VMXNET3_RING_SIZE_MASK;
 579         new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
 580                                   VMXNET3_RX_RING2_MAX_SIZE);
 581
 582         /* rx data ring buffer size has to be a multiple of
 583          * VMXNET3_RXDATA_DESC_SIZE_ALIGN
 584          */
 585         new_rxdata_desc_size =
 586                 (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) &
 587                 ~VMXNET3_RXDATA_DESC_SIZE_MASK;
 588         new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size,
 589                                      VMXNET3_RXDATA_DESC_MAX_SIZE);
 590
 591         if (new_tx_ring_size == adapter->tx_ring_size &&
 592             new_rx_ring_size == adapter->rx_ring_size &&
 593             new_rx_ring2_size == adapter->rx_ring2_size &&
 594             new_rxdata_desc_size == adapter->rxdata_desc_size) {
 595                 return 0;
 596         }
 597
 598         /*
 599          * Reset_work may be in the middle of resetting the device, wait for its
 600          * completion.
 601          */
 602         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 603                 msleep(1);
 604
 605         if (netif_running(netdev)) {
 606                 vmxnet3_quiesce_dev(adapter);
 607                 vmxnet3_reset_dev(adapter);
 608
 609                 /* recreate the rx queue and the tx queue based on the
 610                  * new sizes */
 611                 vmxnet3_tq_destroy_all(adapter);
 612                 vmxnet3_rq_destroy_all(adapter);
 613
 614                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 615                                             new_rx_ring_size, new_rx_ring2_size,
 616                                             adapter->txdata_desc_size,
 617                                             new_rxdata_desc_size);
 618                 if (err) {
 619                         /* failed, most likely because of OOM, try default
 620                          * size */
 621                         netdev_err(netdev, "failed to apply new sizes, "
 622                                    "try the default ones\n");
 623                         new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
 624                         new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
 625                         new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
 626                         new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ?
 627                                 VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
 628
 629                         err = vmxnet3_create_queues(adapter,
 630                                                     new_tx_ring_size,
 631                                                     new_rx_ring_size,
 632                                                     new_rx_ring2_size,
 633                                                     adapter->txdata_desc_size,
 634                                                     new_rxdata_desc_size);
 635                         if (err) {
 636                                 netdev_err(netdev, "failed to create queues "
 637                                            "with default sizes. Closing it\n");
 638                                 goto out;
 639                         }
 640                 }
 641
 642                 err = vmxnet3_activate_dev(adapter);
 643                 if (err)
 644                         netdev_err(netdev, "failed to re-activate, error %d."
 645                                    " Closing it\n", err);
 646         }
 647         adapter->tx_ring_size = new_tx_ring_size;
 648         adapter->rx_ring_size = new_rx_ring_size;
 649         adapter->rx_ring2_size = new_rx_ring2_size;
 650         adapter->rxdata_desc_size = new_rxdata_desc_size;
 651
 652 out:
 653         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 654         if (err)
 655                 vmxnet3_force_close(adapter);
 656
 657         return err;
 658 }
 659
 660
 661 static int
 662 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 663                   u32 *rules)
 664 {
 665         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 666         switch (info->cmd) {
 667         case ETHTOOL_GRXRINGS:
 668                 info->data = adapter->num_rx_queues;
 669                 return 0;
 670         }
 671         return -EOPNOTSUPP;
 672 }
 673
 674 #ifdef VMXNET3_RSS
 675 static u32
 676 vmxnet3_get_rss_indir_size(struct net_device *netdev)
 677 {
 678         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 679         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 680
 681         return rssConf->indTableSize;
 682 }
 683
 684 static int
 685 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
 686 {
 687         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 688         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 689         unsigned int n = rssConf->indTableSize;
 690
 691         if (hfunc)
 692                 *hfunc = ETH_RSS_HASH_TOP;
 693         if (!p)
 694                 return 0;
 695         if (n > UPT1_RSS_MAX_IND_TABLE_SIZE)
 696                 return 0;
 697         while (n--)
 698                 p[n] = rssConf->indTable[n];
 699         return 0;
 700
 701 }
 702
 703 static int
 704 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
 705                 const u8 hfunc)
 706 {
 707         unsigned int i;
 708         unsigned long flags;
 709         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 710         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
 711
 712         /* We do not allow change in unsupported parameters */
 713         if (key ||
 714             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
 715                 return -EOPNOTSUPP;
 716         if (!p)
 717                 return 0;
 718         for (i = 0; i < rssConf->indTableSize; i++)
 719                 rssConf->indTable[i] = p[i];
 720
 721         spin_lock_irqsave(&adapter->cmd_lock, flags);
 722         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 723                                VMXNET3_CMD_UPDATE_RSSIDT);
 724         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 725
 726         return 0;
 727
 728 }
 729 #endif
 730
 731 static int
 732 vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
 733 {
 734         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 735
 736         if (!VMXNET3_VERSION_GE_3(adapter))
 737                 return -EOPNOTSUPP;
 738
 739         switch (adapter->coal_conf->coalMode) {
 740         case VMXNET3_COALESCE_DISABLED:
 741                 /* struct ethtool_coalesce is already initialized to 0 */
 742                 break;
 743         case VMXNET3_COALESCE_ADAPT:
 744                 ec->use_adaptive_rx_coalesce = true;
 745                 break;
 746         case VMXNET3_COALESCE_STATIC:
 747                 ec->tx_max_coalesced_frames =
 748                         adapter->coal_conf->coalPara.coalStatic.tx_comp_depth;
 749                 ec->rx_max_coalesced_frames =
 750                         adapter->coal_conf->coalPara.coalStatic.rx_depth;
 751                 break;
 752         case VMXNET3_COALESCE_RBC: {
 753                 u32 rbc_rate;
 754
 755                 rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate;
 756                 ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate);
 757         }
 758                 break;
 759         default:
 760                 return -EOPNOTSUPP;
 761         }
 762
 763         return 0;
 764 }
 765
 766 static int
 767 vmxnet3_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
 768 {
 769         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 770         struct Vmxnet3_DriverShared *shared = adapter->shared;
 771         union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
 772         unsigned long flags;
 773
 774         if (!VMXNET3_VERSION_GE_3(adapter))
 775                 return -EOPNOTSUPP;
 776
 777         if (ec->rx_coalesce_usecs_irq ||
 778             ec->rx_max_coalesced_frames_irq ||
 779             ec->tx_coalesce_usecs ||
 780             ec->tx_coalesce_usecs_irq ||
 781             ec->tx_max_coalesced_frames_irq ||
 782             ec->stats_block_coalesce_usecs ||
 783             ec->use_adaptive_tx_coalesce ||
 784             ec->pkt_rate_low ||
 785             ec->rx_coalesce_usecs_low ||
 786             ec->rx_max_coalesced_frames_low ||
 787             ec->tx_coalesce_usecs_low ||
 788             ec->tx_max_coalesced_frames_low ||
 789             ec->pkt_rate_high ||
 790             ec->rx_coalesce_usecs_high ||
 791             ec->rx_max_coalesced_frames_high ||
 792             ec->tx_coalesce_usecs_high ||
 793             ec->tx_max_coalesced_frames_high ||
 794             ec->rate_sample_interval) {
 795                 return -EINVAL;
 796         }
 797
 798         if ((ec->rx_coalesce_usecs == 0) &&
 799             (ec->use_adaptive_rx_coalesce == 0) &&
 800             (ec->tx_max_coalesced_frames == 0) &&
 801             (ec->rx_max_coalesced_frames == 0)) {
 802                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
 803                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
 804                 goto done;
 805         }
 806
 807         if (ec->rx_coalesce_usecs != 0) {
 808                 u32 rbc_rate;
 809
 810                 if ((ec->use_adaptive_rx_coalesce != 0) ||
 811                     (ec->tx_max_coalesced_frames != 0) ||
 812                     (ec->rx_max_coalesced_frames != 0)) {
 813                         return -EINVAL;
 814                 }
 815
 816                 rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs);
 817                 if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE ||
 818                     rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) {
 819                         return -EINVAL;
 820                 }
 821
 822                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
 823                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC;
 824                 adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate;
 825                 goto done;
 826         }
 827
 828         if (ec->use_adaptive_rx_coalesce != 0) {
 829                 if ((ec->rx_coalesce_usecs != 0) ||
 830                     (ec->tx_max_coalesced_frames != 0) ||
 831                     (ec->rx_max_coalesced_frames != 0)) {
 832                         return -EINVAL;
 833                 }
 834                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
 835                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT;
 836                 goto done;
 837         }
 838
 839         if ((ec->tx_max_coalesced_frames != 0) ||
 840             (ec->rx_max_coalesced_frames != 0)) {
 841                 if ((ec->rx_coalesce_usecs != 0) ||
 842                     (ec->use_adaptive_rx_coalesce != 0)) {
 843                         return -EINVAL;
 844                 }
 845
 846                 if ((ec->tx_max_coalesced_frames >
 847                     VMXNET3_COAL_STATIC_MAX_DEPTH) ||
 848                     (ec->rx_max_coalesced_frames >
 849                      VMXNET3_COAL_STATIC_MAX_DEPTH)) {
 850                         return -EINVAL;
 851                 }
 852
 853                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
 854                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC;
 855
 856                 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth =
 857                         (ec->tx_max_coalesced_frames ?
 858                          ec->tx_max_coalesced_frames :
 859                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
 860
 861                 adapter->coal_conf->coalPara.coalStatic.rx_depth =
 862                         (ec->rx_max_coalesced_frames ?
 863                          ec->rx_max_coalesced_frames :
 864                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
 865
 866                 adapter->coal_conf->coalPara.coalStatic.tx_depth =
 867                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH;
 868                 goto done;
 869         }
 870
 871 done:
 872         adapter->default_coal_mode = false;
 873         if (netif_running(netdev)) {
 874                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 875                 cmdInfo->varConf.confVer = 1;
 876                 cmdInfo->varConf.confLen =
 877                         cpu_to_le32(sizeof(*adapter->coal_conf));
 878                 cmdInfo->varConf.confPA  = cpu_to_le64(adapter->coal_conf_pa);
 879                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 880                                        VMXNET3_CMD_SET_COALESCE);
 881                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 882         }
 883
 884         return 0;
 885 }
 886
 887 static const struct ethtool_ops vmxnet3_ethtool_ops = {
 888         .get_drvinfo       = vmxnet3_get_drvinfo,
 889         .get_regs_len      = vmxnet3_get_regs_len,
 890         .get_regs          = vmxnet3_get_regs,
 891         .get_wol           = vmxnet3_get_wol,
 892         .set_wol           = vmxnet3_set_wol,
 893         .get_link          = ethtool_op_get_link,
 894         .get_coalesce      = vmxnet3_get_coalesce,
 895         .set_coalesce      = vmxnet3_set_coalesce,
 896         .get_strings       = vmxnet3_get_strings,
 897         .get_sset_count    = vmxnet3_get_sset_count,
 898         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
 899         .get_ringparam     = vmxnet3_get_ringparam,
 900         .set_ringparam     = vmxnet3_set_ringparam,
 901         .get_rxnfc         = vmxnet3_get_rxnfc,
 902 #ifdef VMXNET3_RSS
 903         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
 904         .get_rxfh          = vmxnet3_get_rss,
 905         .set_rxfh          = vmxnet3_set_rss,
 906 #endif
 907         .get_link_ksettings = vmxnet3_get_link_ksettings,
 908 };
 909
 910 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
 911 {
 912         netdev->ethtool_ops = &vmxnet3_ethtool_ops;
 913 }