drivers/net/vmxnet3/vmxnet3_ethtool.c

   1 /*
   2  * Linux driver for VMware's vmxnet3 ethernet NIC.
   3  *
   4  * Copyright (C) 2008-2021, 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 #include <net/vxlan.h>
  30 #include <net/geneve.h>
  31
  32 #define VXLAN_UDP_PORT 8472
  33
  34 struct vmxnet3_stat_desc {
  35         char desc[ETH_GSTRING_LEN];
  36         int  offset;
  37 };
  38
  39
  40 /* per tq stats maintained by the device */
  41 static const struct vmxnet3_stat_desc
  42 vmxnet3_tq_dev_stats[] = {
  43         /* description,         offset */
  44         { "Tx Queue#",        0 },
  45         { "  TSO pkts tx",      offsetof(struct UPT1_TxStats, TSOPktsTxOK) },
  46         { "  TSO bytes tx",     offsetof(struct UPT1_TxStats, TSOBytesTxOK) },
  47         { "  ucast pkts tx",    offsetof(struct UPT1_TxStats, ucastPktsTxOK) },
  48         { "  ucast bytes tx",   offsetof(struct UPT1_TxStats, ucastBytesTxOK) },
  49         { "  mcast pkts tx",    offsetof(struct UPT1_TxStats, mcastPktsTxOK) },
  50         { "  mcast bytes tx",   offsetof(struct UPT1_TxStats, mcastBytesTxOK) },
  51         { "  bcast pkts tx",    offsetof(struct UPT1_TxStats, bcastPktsTxOK) },
  52         { "  bcast bytes tx",   offsetof(struct UPT1_TxStats, bcastBytesTxOK) },
  53         { "  pkts tx err",      offsetof(struct UPT1_TxStats, pktsTxError) },
  54         { "  pkts tx discard",  offsetof(struct UPT1_TxStats, pktsTxDiscard) },
  55 };
  56
  57 /* per tq stats maintained by the driver */
  58 static const struct vmxnet3_stat_desc
  59 vmxnet3_tq_driver_stats[] = {
  60         /* description,         offset */
  61         {"  drv dropped tx total",      offsetof(struct vmxnet3_tq_driver_stats,
  62                                                  drop_total) },
  63         { "     too many frags", offsetof(struct vmxnet3_tq_driver_stats,
  64                                           drop_too_many_frags) },
  65         { "     giant hdr",     offsetof(struct vmxnet3_tq_driver_stats,
  66                                          drop_oversized_hdr) },
  67         { "     hdr err",       offsetof(struct vmxnet3_tq_driver_stats,
  68                                          drop_hdr_inspect_err) },
  69         { "     tso",           offsetof(struct vmxnet3_tq_driver_stats,
  70                                          drop_tso) },
  71         { "  ring full",        offsetof(struct vmxnet3_tq_driver_stats,
  72                                          tx_ring_full) },
  73         { "  pkts linearized",  offsetof(struct vmxnet3_tq_driver_stats,
  74                                          linearized) },
  75         { "  hdr cloned",       offsetof(struct vmxnet3_tq_driver_stats,
  76                                          copy_skb_header) },
  77         { "  giant hdr",        offsetof(struct vmxnet3_tq_driver_stats,
  78                                          oversized_hdr) },
  79 };
  80
  81 /* per rq stats maintained by the device */
  82 static const struct vmxnet3_stat_desc
  83 vmxnet3_rq_dev_stats[] = {
  84         { "Rx Queue#",        0 },
  85         { "  LRO pkts rx",      offsetof(struct UPT1_RxStats, LROPktsRxOK) },
  86         { "  LRO byte rx",      offsetof(struct UPT1_RxStats, LROBytesRxOK) },
  87         { "  ucast pkts rx",    offsetof(struct UPT1_RxStats, ucastPktsRxOK) },
  88         { "  ucast bytes rx",   offsetof(struct UPT1_RxStats, ucastBytesRxOK) },
  89         { "  mcast pkts rx",    offsetof(struct UPT1_RxStats, mcastPktsRxOK) },
  90         { "  mcast bytes rx",   offsetof(struct UPT1_RxStats, mcastBytesRxOK) },
  91         { "  bcast pkts rx",    offsetof(struct UPT1_RxStats, bcastPktsRxOK) },
  92         { "  bcast bytes rx",   offsetof(struct UPT1_RxStats, bcastBytesRxOK) },
  93         { "  pkts rx OOB",      offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) },
  94         { "  pkts rx err",      offsetof(struct UPT1_RxStats, pktsRxError) },
  95 };
  96
  97 /* per rq stats maintained by the driver */
  98 static const struct vmxnet3_stat_desc
  99 vmxnet3_rq_driver_stats[] = {
 100         /* description,         offset */
 101         { "  drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats,
 102                                              drop_total) },
 103         { "     err",           offsetof(struct vmxnet3_rq_driver_stats,
 104                                          drop_err) },
 105         { "     fcs",           offsetof(struct vmxnet3_rq_driver_stats,
 106                                          drop_fcs) },
 107         { "  rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats,
 108                                           rx_buf_alloc_failure) },
 109 };
 110
 111 /* global stats maintained by the driver */
 112 static const struct vmxnet3_stat_desc
 113 vmxnet3_global_stats[] = {
 114         /* description,         offset */
 115         { "tx timeout count",   offsetof(struct vmxnet3_adapter,
 116                                          tx_timeout_count) }
 117 };
 118
 119
 120 void
 121 vmxnet3_get_stats64(struct net_device *netdev,
 122                    struct rtnl_link_stats64 *stats)
 123 {
 124         struct vmxnet3_adapter *adapter;
 125         struct vmxnet3_tq_driver_stats *drvTxStats;
 126         struct vmxnet3_rq_driver_stats *drvRxStats;
 127         struct UPT1_TxStats *devTxStats;
 128         struct UPT1_RxStats *devRxStats;
 129         unsigned long flags;
 130         int i;
 131
 132         adapter = netdev_priv(netdev);
 133
 134         /* Collect the dev stats into the shared area */
 135         spin_lock_irqsave(&adapter->cmd_lock, flags);
 136         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 137         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 138
 139         for (i = 0; i < adapter->num_tx_queues; i++) {
 140                 devTxStats = &adapter->tqd_start[i].stats;
 141                 drvTxStats = &adapter->tx_queue[i].stats;
 142                 stats->tx_packets += devTxStats->ucastPktsTxOK +
 143                                      devTxStats->mcastPktsTxOK +
 144                                      devTxStats->bcastPktsTxOK;
 145                 stats->tx_bytes += devTxStats->ucastBytesTxOK +
 146                                    devTxStats->mcastBytesTxOK +
 147                                    devTxStats->bcastBytesTxOK;
 148                 stats->tx_errors += devTxStats->pktsTxError;
 149                 stats->tx_dropped += drvTxStats->drop_total;
 150         }
 151
 152         for (i = 0; i < adapter->num_rx_queues; i++) {
 153                 devRxStats = &adapter->rqd_start[i].stats;
 154                 drvRxStats = &adapter->rx_queue[i].stats;
 155                 stats->rx_packets += devRxStats->ucastPktsRxOK +
 156                                      devRxStats->mcastPktsRxOK +
 157                                      devRxStats->bcastPktsRxOK;
 158
 159                 stats->rx_bytes += devRxStats->ucastBytesRxOK +
 160                                    devRxStats->mcastBytesRxOK +
 161                                    devRxStats->bcastBytesRxOK;
 162
 163                 stats->rx_errors += devRxStats->pktsRxError;
 164                 stats->rx_dropped += drvRxStats->drop_total;
 165                 stats->multicast +=  devRxStats->mcastPktsRxOK;
 166         }
 167 }
 168
 169 static int
 170 vmxnet3_get_sset_count(struct net_device *netdev, int sset)
 171 {
 172         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 173         switch (sset) {
 174         case ETH_SS_STATS:
 175                 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) +
 176                         ARRAY_SIZE(vmxnet3_tq_driver_stats)) *
 177                        adapter->num_tx_queues +
 178                        (ARRAY_SIZE(vmxnet3_rq_dev_stats) +
 179                         ARRAY_SIZE(vmxnet3_rq_driver_stats)) *
 180                        adapter->num_rx_queues +
 181                         ARRAY_SIZE(vmxnet3_global_stats);
 182         default:
 183                 return -EOPNOTSUPP;
 184         }
 185 }
 186
 187
 188 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 189  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 190  * Therefore, if any registers are added, removed or modified, then a version
 191  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 192  * --register-dump would be required.
 193  */
 194 static int
 195 vmxnet3_get_regs_len(struct net_device *netdev)
 196 {
 197         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 198
 199         return ((9 /* BAR1 registers */ +
 200                 (1 + adapter->intr.num_intrs) +
 201                 (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) +
 202                 (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) *
 203                 sizeof(u32));
 204 }
 205
 206
 207 static void
 208 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 209 {
 210         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 211
 212         strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver));
 213
 214         strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT,
 215                 sizeof(drvinfo->version));
 216
 217         strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
 218                 sizeof(drvinfo->bus_info));
 219 }
 220
 221
 222 static void
 223 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
 224 {
 225          struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 226         if (stringset == ETH_SS_STATS) {
 227                 int i, j;
 228                 for (j = 0; j < adapter->num_tx_queues; j++) {
 229                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) {
 230                                 memcpy(buf, vmxnet3_tq_dev_stats[i].desc,
 231                                        ETH_GSTRING_LEN);
 232                                 buf += ETH_GSTRING_LEN;
 233                         }
 234                         for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats);
 235                              i++) {
 236                                 memcpy(buf, vmxnet3_tq_driver_stats[i].desc,
 237                                        ETH_GSTRING_LEN);
 238                                 buf += ETH_GSTRING_LEN;
 239                         }
 240                 }
 241
 242                 for (j = 0; j < adapter->num_rx_queues; j++) {
 243                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) {
 244                                 memcpy(buf, vmxnet3_rq_dev_stats[i].desc,
 245                                        ETH_GSTRING_LEN);
 246                                 buf += ETH_GSTRING_LEN;
 247                         }
 248                         for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats);
 249                              i++) {
 250                                 memcpy(buf, vmxnet3_rq_driver_stats[i].desc,
 251                                        ETH_GSTRING_LEN);
 252                                 buf += ETH_GSTRING_LEN;
 253                         }
 254                 }
 255
 256                 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) {
 257                         memcpy(buf, vmxnet3_global_stats[i].desc,
 258                                 ETH_GSTRING_LEN);
 259                         buf += ETH_GSTRING_LEN;
 260                 }
 261         }
 262 }
 263
 264 netdev_features_t vmxnet3_fix_features(struct net_device *netdev,
 265                                        netdev_features_t features)
 266 {
 267         /* If Rx checksum is disabled, then LRO should also be disabled */
 268         if (!(features & NETIF_F_RXCSUM))
 269                 features &= ~NETIF_F_LRO;
 270
 271         return features;
 272 }
 273
 274 netdev_features_t vmxnet3_features_check(struct sk_buff *skb,
 275                                          struct net_device *netdev,
 276                                          netdev_features_t features)
 277 {
 278         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 279
 280         /* Validate if the tunneled packet is being offloaded by the device */
 281         if (VMXNET3_VERSION_GE_4(adapter) &&
 282             skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL) {
 283                 u8 l4_proto = 0;
 284                 u16 port;
 285                 struct udphdr *udph;
 286
 287                 switch (vlan_get_protocol(skb)) {
 288                 case htons(ETH_P_IP):
 289                         l4_proto = ip_hdr(skb)->protocol;
 290                         break;
 291                 case htons(ETH_P_IPV6):
 292                         l4_proto = ipv6_hdr(skb)->nexthdr;
 293                         break;
 294                 default:
 295                         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 296                 }
 297
 298                 switch (l4_proto) {
 299                 case IPPROTO_UDP:
 300                         udph = udp_hdr(skb);
 301                         port = be16_to_cpu(udph->dest);
 302                         /* Check if offloaded port is supported */
 303                         if (port != GENEVE_UDP_PORT &&
 304                             port != IANA_VXLAN_UDP_PORT &&
 305                             port != VXLAN_UDP_PORT) {
 306                                 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 307                         }
 308                         break;
 309                 default:
 310                         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 311                 }
 312         }
 313         return features;
 314 }
 315
 316 static void vmxnet3_enable_encap_offloads(struct net_device *netdev)
 317 {
 318         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 319
 320         if (VMXNET3_VERSION_GE_4(adapter)) {
 321                 netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_RXCSUM |
 322                         NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
 323                         NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
 324                         NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL |
 325                         NETIF_F_GSO_UDP_TUNNEL_CSUM;
 326         }
 327 }
 328
 329 static void vmxnet3_disable_encap_offloads(struct net_device *netdev)
 330 {
 331         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 332
 333         if (VMXNET3_VERSION_GE_4(adapter)) {
 334                 netdev->hw_enc_features &= ~(NETIF_F_SG | NETIF_F_RXCSUM |
 335                         NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
 336                         NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
 337                         NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL |
 338                         NETIF_F_GSO_UDP_TUNNEL_CSUM);
 339         }
 340 }
 341
 342 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
 343 {
 344         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 345         unsigned long flags;
 346         netdev_features_t changed = features ^ netdev->features;
 347         netdev_features_t tun_offload_mask = NETIF_F_GSO_UDP_TUNNEL |
 348                                              NETIF_F_GSO_UDP_TUNNEL_CSUM;
 349         u8 udp_tun_enabled = (netdev->features & tun_offload_mask) != 0;
 350
 351         if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
 352                        NETIF_F_HW_VLAN_CTAG_RX | tun_offload_mask)) {
 353                 if (features & NETIF_F_RXCSUM)
 354                         adapter->shared->devRead.misc.uptFeatures |=
 355                         UPT1_F_RXCSUM;
 356                 else
 357                         adapter->shared->devRead.misc.uptFeatures &=
 358                         ~UPT1_F_RXCSUM;
 359
 360                 /* update hardware LRO capability accordingly */
 361                 if (features & NETIF_F_LRO)
 362                         adapter->shared->devRead.misc.uptFeatures |=
 363                                                         UPT1_F_LRO;
 364                 else
 365                         adapter->shared->devRead.misc.uptFeatures &=
 366                                                         ~UPT1_F_LRO;
 367
 368                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
 369                         adapter->shared->devRead.misc.uptFeatures |=
 370                         UPT1_F_RXVLAN;
 371                 else
 372                         adapter->shared->devRead.misc.uptFeatures &=
 373                         ~UPT1_F_RXVLAN;
 374
 375                 if ((features & tun_offload_mask) != 0 && !udp_tun_enabled) {
 376                         vmxnet3_enable_encap_offloads(netdev);
 377                         adapter->shared->devRead.misc.uptFeatures |=
 378                         UPT1_F_RXINNEROFLD;
 379                 } else if ((features & tun_offload_mask) == 0 &&
 380                            udp_tun_enabled) {
 381                         vmxnet3_disable_encap_offloads(netdev);
 382                         adapter->shared->devRead.misc.uptFeatures &=
 383                         ~UPT1_F_RXINNEROFLD;
 384                 }
 385
 386                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 387                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 388                                        VMXNET3_CMD_UPDATE_FEATURE);
 389                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 390         }
 391         return 0;
 392 }
 393
 394 static void
 395 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 396                           struct ethtool_stats *stats, u64  *buf)
 397 {
 398         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 399         unsigned long flags;
 400         u8 *base;
 401         int i;
 402         int j = 0;
 403
 404         spin_lock_irqsave(&adapter->cmd_lock, flags);
 405         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 406         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 407
 408         /* this does assume each counter is 64-bit wide */
 409         for (j = 0; j < adapter->num_tx_queues; j++) {
 410                 base = (u8 *)&adapter->tqd_start[j].stats;
 411                 *buf++ = (u64)j;
 412                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 413                         *buf++ = *(u64 *)(base +
 414                                           vmxnet3_tq_dev_stats[i].offset);
 415
 416                 base = (u8 *)&adapter->tx_queue[j].stats;
 417                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 418                         *buf++ = *(u64 *)(base +
 419                                           vmxnet3_tq_driver_stats[i].offset);
 420         }
 421
 422         for (j = 0; j < adapter->num_rx_queues; j++) {
 423                 base = (u8 *)&adapter->rqd_start[j].stats;
 424                 *buf++ = (u64) j;
 425                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 426                         *buf++ = *(u64 *)(base +
 427                                           vmxnet3_rq_dev_stats[i].offset);
 428
 429                 base = (u8 *)&adapter->rx_queue[j].stats;
 430                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 431                         *buf++ = *(u64 *)(base +
 432                                           vmxnet3_rq_driver_stats[i].offset);
 433         }
 434
 435         base = (u8 *)adapter;
 436         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 437                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 438 }
 439
 440
 441 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 442  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 443  * Therefore, if any registers are added, removed or modified, then a version
 444  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 445  * --register-dump would be required.
 446  */
 447 static void
 448 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 449 {
 450         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 451         u32 *buf = p;
 452         int i = 0, j = 0;
 453
 454         memset(p, 0, vmxnet3_get_regs_len(netdev));
 455
 456         regs->version = 2;
 457
 458         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 459
 460         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
 461         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
 462         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
 463         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
 464         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 465         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
 466         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
 467         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
 468         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
 469
 470         buf[j++] = adapter->intr.num_intrs;
 471         for (i = 0; i < adapter->intr.num_intrs; i++) {
 472                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
 473                                                  + i * VMXNET3_REG_ALIGN);
 474         }
 475
 476         buf[j++] = adapter->num_tx_queues;
 477         for (i = 0; i < adapter->num_tx_queues; i++) {
 478                 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
 479
 480                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
 481                                                  i * VMXNET3_REG_ALIGN);
 482
 483                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
 484                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
 485                 buf[j++] = tq->tx_ring.size;
 486                 buf[j++] = tq->tx_ring.next2fill;
 487                 buf[j++] = tq->tx_ring.next2comp;
 488                 buf[j++] = tq->tx_ring.gen;
 489
 490                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
 491                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
 492                 buf[j++] = tq->data_ring.size;
 493                 buf[j++] = tq->txdata_desc_size;
 494
 495                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
 496                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
 497                 buf[j++] = tq->comp_ring.size;
 498                 buf[j++] = tq->comp_ring.next2proc;
 499                 buf[j++] = tq->comp_ring.gen;
 500
 501                 buf[j++] = tq->stopped;
 502         }
 503
 504         buf[j++] = adapter->num_rx_queues;
 505         for (i = 0; i < adapter->num_rx_queues; i++) {
 506                 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
 507
 508                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
 509                                                   i * VMXNET3_REG_ALIGN);
 510                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
 511                                                   i * VMXNET3_REG_ALIGN);
 512
 513                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
 514                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
 515                 buf[j++] = rq->rx_ring[0].size;
 516                 buf[j++] = rq->rx_ring[0].next2fill;
 517                 buf[j++] = rq->rx_ring[0].next2comp;
 518                 buf[j++] = rq->rx_ring[0].gen;
 519
 520                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
 521                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
 522                 buf[j++] = rq->rx_ring[1].size;
 523                 buf[j++] = rq->rx_ring[1].next2fill;
 524                 buf[j++] = rq->rx_ring[1].next2comp;
 525                 buf[j++] = rq->rx_ring[1].gen;
 526
 527                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA);
 528                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA);
 529                 buf[j++] = rq->rx_ring[0].size;
 530                 buf[j++] = rq->data_ring.desc_size;
 531
 532                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
 533                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
 534                 buf[j++] = rq->comp_ring.size;
 535                 buf[j++] = rq->comp_ring.next2proc;
 536                 buf[j++] = rq->comp_ring.gen;
 537         }
 538 }
 539
 540
 541 static void
 542 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 543 {
 544         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 545
 546         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 547         wol->wolopts = adapter->wol;
 548 }
 549
 550
 551 static int
 552 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 553 {
 554         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 555
 556         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 557                             WAKE_MAGICSECURE)) {
 558                 return -EOPNOTSUPP;
 559         }
 560
 561         adapter->wol = wol->wolopts;
 562
 563         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 564
 565         return 0;
 566 }
 567
 568
 569 static int
 570 vmxnet3_get_link_ksettings(struct net_device *netdev,
 571                            struct ethtool_link_ksettings *ecmd)
 572 {
 573         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 574
 575         ethtool_link_ksettings_zero_link_mode(ecmd, supported);
 576         ethtool_link_ksettings_add_link_mode(ecmd, supported, 10000baseT_Full);
 577         ethtool_link_ksettings_add_link_mode(ecmd, supported, 1000baseT_Full);
 578         ethtool_link_ksettings_add_link_mode(ecmd, supported, TP);
 579         ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
 580         ethtool_link_ksettings_add_link_mode(ecmd, advertising, TP);
 581         ecmd->base.port = PORT_TP;
 582
 583         if (adapter->link_speed) {
 584                 ecmd->base.speed = adapter->link_speed;
 585                 ecmd->base.duplex = DUPLEX_FULL;
 586         } else {
 587                 ecmd->base.speed = SPEED_UNKNOWN;
 588                 ecmd->base.duplex = DUPLEX_UNKNOWN;
 589         }
 590         return 0;
 591 }
 592
 593
 594 static void
 595 vmxnet3_get_ringparam(struct net_device *netdev,
 596                       struct ethtool_ringparam *param)
 597 {
 598         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 599
 600         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 601         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 602         param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ?
 603                 VMXNET3_RXDATA_DESC_MAX_SIZE : 0;
 604         param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
 605
 606         param->rx_pending = adapter->rx_ring_size;
 607         param->tx_pending = adapter->tx_ring_size;
 608         param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ?
 609                 adapter->rxdata_desc_size : 0;
 610         param->rx_jumbo_pending = adapter->rx_ring2_size;
 611 }
 612
 613
 614 static int
 615 vmxnet3_set_ringparam(struct net_device *netdev,
 616                       struct ethtool_ringparam *param)
 617 {
 618         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 619         u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
 620         u16 new_rxdata_desc_size;
 621         u32 sz;
 622         int err = 0;
 623
 624         if (param->tx_pending == 0 || param->tx_pending >
 625                                                 VMXNET3_TX_RING_MAX_SIZE)
 626                 return -EINVAL;
 627
 628         if (param->rx_pending == 0 || param->rx_pending >
 629                                                 VMXNET3_RX_RING_MAX_SIZE)
 630                 return -EINVAL;
 631
 632         if (param->rx_jumbo_pending == 0 ||
 633             param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
 634                 return -EINVAL;
 635
 636         /* if adapter not yet initialized, do nothing */
 637         if (adapter->rx_buf_per_pkt == 0) {
 638                 netdev_err(netdev, "adapter not completely initialized, "
 639                            "ring size cannot be changed yet\n");
 640                 return -EOPNOTSUPP;
 641         }
 642
 643         if (VMXNET3_VERSION_GE_3(adapter)) {
 644                 if (param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE)
 645                         return -EINVAL;
 646         } else if (param->rx_mini_pending != 0) {
 647                 return -EINVAL;
 648         }
 649
 650         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 651         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 652                                                         ~VMXNET3_RING_SIZE_MASK;
 653         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 654                                  VMXNET3_TX_RING_MAX_SIZE);
 655         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 656                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 657                 return -EINVAL;
 658
 659         /* ring0 has to be a multiple of
 660          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 661          */
 662         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 663         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 664         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 665                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 666         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 667                                                            sz) != 0)
 668                 return -EINVAL;
 669
 670         /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
 671         new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
 672                                 ~VMXNET3_RING_SIZE_MASK;
 673         new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
 674                                   VMXNET3_RX_RING2_MAX_SIZE);
 675
 676         /* rx data ring buffer size has to be a multiple of
 677          * VMXNET3_RXDATA_DESC_SIZE_ALIGN
 678          */
 679         new_rxdata_desc_size =
 680                 (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) &
 681                 ~VMXNET3_RXDATA_DESC_SIZE_MASK;
 682         new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size,
 683                                      VMXNET3_RXDATA_DESC_MAX_SIZE);
 684
 685         if (new_tx_ring_size == adapter->tx_ring_size &&
 686             new_rx_ring_size == adapter->rx_ring_size &&
 687             new_rx_ring2_size == adapter->rx_ring2_size &&
 688             new_rxdata_desc_size == adapter->rxdata_desc_size) {
 689                 return 0;
 690         }
 691
 692         /*
 693          * Reset_work may be in the middle of resetting the device, wait for its
 694          * completion.
 695          */
 696         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 697                 usleep_range(1000, 2000);
 698
 699         if (netif_running(netdev)) {
 700                 vmxnet3_quiesce_dev(adapter);
 701                 vmxnet3_reset_dev(adapter);
 702
 703                 /* recreate the rx queue and the tx queue based on the
 704                  * new sizes */
 705                 vmxnet3_tq_destroy_all(adapter);
 706                 vmxnet3_rq_destroy_all(adapter);
 707
 708                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 709                                             new_rx_ring_size, new_rx_ring2_size,
 710                                             adapter->txdata_desc_size,
 711                                             new_rxdata_desc_size);
 712                 if (err) {
 713                         /* failed, most likely because of OOM, try default
 714                          * size */
 715                         netdev_err(netdev, "failed to apply new sizes, "
 716                                    "try the default ones\n");
 717                         new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
 718                         new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
 719                         new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
 720                         new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ?
 721                                 VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
 722
 723                         err = vmxnet3_create_queues(adapter,
 724                                                     new_tx_ring_size,
 725                                                     new_rx_ring_size,
 726                                                     new_rx_ring2_size,
 727                                                     adapter->txdata_desc_size,
 728                                                     new_rxdata_desc_size);
 729                         if (err) {
 730                                 netdev_err(netdev, "failed to create queues "
 731                                            "with default sizes. Closing it\n");
 732                                 goto out;
 733                         }
 734                 }
 735
 736                 err = vmxnet3_activate_dev(adapter);
 737                 if (err)
 738                         netdev_err(netdev, "failed to re-activate, error %d."
 739                                    " Closing it\n", err);
 740         }
 741         adapter->tx_ring_size = new_tx_ring_size;
 742         adapter->rx_ring_size = new_rx_ring_size;
 743         adapter->rx_ring2_size = new_rx_ring2_size;
 744         adapter->rxdata_desc_size = new_rxdata_desc_size;
 745
 746 out:
 747         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 748         if (err)
 749                 vmxnet3_force_close(adapter);
 750
 751         return err;
 752 }
 753
 754 static int
 755 vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter,
 756                           struct ethtool_rxnfc *info)
 757 {
 758         enum Vmxnet3_RSSField rss_fields;
 759
 760         if (netif_running(adapter->netdev)) {
 761                 unsigned long flags;
 762
 763                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 764
 765                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 766                                        VMXNET3_CMD_GET_RSS_FIELDS);
 767                 rss_fields = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 768                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 769         } else {
 770                 rss_fields = adapter->rss_fields;
 771         }
 772
 773         info->data = 0;
 774
 775         /* Report default options for RSS on vmxnet3 */
 776         switch (info->flow_type) {
 777         case TCP_V4_FLOW:
 778         case TCP_V6_FLOW:
 779                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3 |
 780                               RXH_IP_SRC | RXH_IP_DST;
 781                 break;
 782         case UDP_V4_FLOW:
 783                 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP4)
 784                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 785                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 786                 break;
 787         case AH_ESP_V4_FLOW:
 788         case AH_V4_FLOW:
 789         case ESP_V4_FLOW:
 790                 if (rss_fields & VMXNET3_RSS_FIELDS_ESPIP4)
 791                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 792                 fallthrough;
 793         case SCTP_V4_FLOW:
 794         case IPV4_FLOW:
 795                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 796                 break;
 797         case UDP_V6_FLOW:
 798                 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP6)
 799                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 800                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 801                 break;
 802         case AH_ESP_V6_FLOW:
 803         case AH_V6_FLOW:
 804         case ESP_V6_FLOW:
 805         case SCTP_V6_FLOW:
 806         case IPV6_FLOW:
 807                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 808                 break;
 809         default:
 810                 return -EINVAL;
 811         }
 812
 813         return 0;
 814 }
 815
 816 static int
 817 vmxnet3_set_rss_hash_opt(struct net_device *netdev,
 818                          struct vmxnet3_adapter *adapter,
 819                          struct ethtool_rxnfc *nfc)
 820 {
 821         enum Vmxnet3_RSSField rss_fields = adapter->rss_fields;
 822
 823         /* RSS does not support anything other than hashing
 824          * to queues on src and dst IPs and ports
 825          */
 826         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 827                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 828                 return -EINVAL;
 829
 830         switch (nfc->flow_type) {
 831         case TCP_V4_FLOW:
 832         case TCP_V6_FLOW:
 833                 if (!(nfc->data & RXH_IP_SRC) ||
 834                     !(nfc->data & RXH_IP_DST) ||
 835                     !(nfc->data & RXH_L4_B_0_1) ||
 836                     !(nfc->data & RXH_L4_B_2_3))
 837                         return -EINVAL;
 838                 break;
 839         case UDP_V4_FLOW:
 840                 if (!(nfc->data & RXH_IP_SRC) ||
 841                     !(nfc->data & RXH_IP_DST))
 842                         return -EINVAL;
 843                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 844                 case 0:
 845                         rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP4;
 846                         break;
 847                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 848                         rss_fields |= VMXNET3_RSS_FIELDS_UDPIP4;
 849                         break;
 850                 default:
 851                         return -EINVAL;
 852                 }
 853                 break;
 854         case UDP_V6_FLOW:
 855                 if (!(nfc->data & RXH_IP_SRC) ||
 856                     !(nfc->data & RXH_IP_DST))
 857                         return -EINVAL;
 858                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 859                 case 0:
 860                         rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP6;
 861                         break;
 862                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 863                         rss_fields |= VMXNET3_RSS_FIELDS_UDPIP6;
 864                         break;
 865                 default:
 866                         return -EINVAL;
 867                 }
 868                 break;
 869         case ESP_V4_FLOW:
 870         case AH_V4_FLOW:
 871         case AH_ESP_V4_FLOW:
 872                 if (!(nfc->data & RXH_IP_SRC) ||
 873                     !(nfc->data & RXH_IP_DST))
 874                         return -EINVAL;
 875                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 876                 case 0:
 877                         rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP4;
 878                         break;
 879                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 880                         rss_fields |= VMXNET3_RSS_FIELDS_ESPIP4;
 881                 break;
 882                 default:
 883                         return -EINVAL;
 884                 }
 885                 break;
 886         case ESP_V6_FLOW:
 887         case AH_V6_FLOW:
 888         case AH_ESP_V6_FLOW:
 889         case SCTP_V4_FLOW:
 890         case SCTP_V6_FLOW:
 891                 if (!(nfc->data & RXH_IP_SRC) ||
 892                     !(nfc->data & RXH_IP_DST) ||
 893                     (nfc->data & RXH_L4_B_0_1) ||
 894                     (nfc->data & RXH_L4_B_2_3))
 895                         return -EINVAL;
 896                 break;
 897         default:
 898                 return -EINVAL;
 899         }
 900
 901         /* if we changed something we need to update flags */
 902         if (rss_fields != adapter->rss_fields) {
 903                 adapter->default_rss_fields = false;
 904                 if (netif_running(netdev)) {
 905                         struct Vmxnet3_DriverShared *shared = adapter->shared;
 906                         union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
 907                         unsigned long flags;
 908
 909                         spin_lock_irqsave(&adapter->cmd_lock, flags);
 910                         cmdInfo->setRssFields = rss_fields;
 911                         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 912                                                VMXNET3_CMD_SET_RSS_FIELDS);
 913
 914                         /* Not all requested RSS may get applied, so get and
 915                          * cache what was actually applied.
 916                          */
 917                         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 918                                                VMXNET3_CMD_GET_RSS_FIELDS);
 919                         adapter->rss_fields =
 920                                 VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 921                         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 922                 } else {
 923                         /* When the device is activated, we will try to apply
 924                          * these rules and cache the applied value later.
 925                          */
 926                         adapter->rss_fields = rss_fields;
 927                 }
 928         }
 929         return 0;
 930 }
 931
 932 static int
 933 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 934                   u32 *rules)
 935 {
 936         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 937         int err = 0;
 938
 939         switch (info->cmd) {
 940         case ETHTOOL_GRXRINGS:
 941                 info->data = adapter->num_rx_queues;
 942                 break;
 943         case ETHTOOL_GRXFH:
 944                 if (!VMXNET3_VERSION_GE_4(adapter)) {
 945                         err = -EOPNOTSUPP;
 946                         break;
 947                 }
 948 #ifdef VMXNET3_RSS
 949                 if (!adapter->rss) {
 950                         err = -EOPNOTSUPP;
 951                         break;
 952                 }
 953 #endif
 954                 err = vmxnet3_get_rss_hash_opts(adapter, info);
 955                 break;
 956         default:
 957                 err = -EOPNOTSUPP;
 958                 break;
 959         }
 960
 961         return err;
 962 }
 963
 964 static int
 965 vmxnet3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
 966 {
 967         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 968         int err = 0;
 969
 970         if (!VMXNET3_VERSION_GE_4(adapter)) {
 971                 err = -EOPNOTSUPP;
 972                 goto done;
 973         }
 974 #ifdef VMXNET3_RSS
 975         if (!adapter->rss) {
 976                 err = -EOPNOTSUPP;
 977                 goto done;
 978         }
 979 #endif
 980
 981         switch (info->cmd) {
 982         case ETHTOOL_SRXFH:
 983                 err = vmxnet3_set_rss_hash_opt(netdev, adapter, info);
 984                 break;
 985         default:
 986                 err = -EOPNOTSUPP;
 987                 break;
 988         }
 989
 990 done:
 991         return err;
 992 }
 993
 994 #ifdef VMXNET3_RSS
 995 static u32
 996 vmxnet3_get_rss_indir_size(struct net_device *netdev)
 997 {
 998         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 999         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1000
1001         return rssConf->indTableSize;
1002 }
1003
1004 static int
1005 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
1006 {
1007         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1008         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1009         unsigned int n = rssConf->indTableSize;
1010
1011         if (hfunc)
1012                 *hfunc = ETH_RSS_HASH_TOP;
1013         if (!p)
1014                 return 0;
1015         if (n > UPT1_RSS_MAX_IND_TABLE_SIZE)
1016                 return 0;
1017         while (n--)
1018                 p[n] = rssConf->indTable[n];
1019         return 0;
1020
1021 }
1022
1023 static int
1024 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
1025                 const u8 hfunc)
1026 {
1027         unsigned int i;
1028         unsigned long flags;
1029         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1030         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1031
1032         /* We do not allow change in unsupported parameters */
1033         if (key ||
1034             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1035                 return -EOPNOTSUPP;
1036         if (!p)
1037                 return 0;
1038         for (i = 0; i < rssConf->indTableSize; i++)
1039                 rssConf->indTable[i] = p[i];
1040
1041         spin_lock_irqsave(&adapter->cmd_lock, flags);
1042         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
1043                                VMXNET3_CMD_UPDATE_RSSIDT);
1044         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
1045
1046         return 0;
1047
1048 }
1049 #endif
1050
1051 static int
1052 vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
1053 {
1054         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1055
1056         if (!VMXNET3_VERSION_GE_3(adapter))
1057                 return -EOPNOTSUPP;
1058
1059         switch (adapter->coal_conf->coalMode) {
1060         case VMXNET3_COALESCE_DISABLED:
1061                 /* struct ethtool_coalesce is already initialized to 0 */
1062                 break;
1063         case VMXNET3_COALESCE_ADAPT:
1064                 ec->use_adaptive_rx_coalesce = true;
1065                 break;
1066         case VMXNET3_COALESCE_STATIC:
1067                 ec->tx_max_coalesced_frames =
1068                         adapter->coal_conf->coalPara.coalStatic.tx_comp_depth;
1069                 ec->rx_max_coalesced_frames =
1070                         adapter->coal_conf->coalPara.coalStatic.rx_depth;
1071                 break;
1072         case VMXNET3_COALESCE_RBC: {
1073                 u32 rbc_rate;
1074
1075                 rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate;
1076                 ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate);
1077         }
1078                 break;
1079         default:
1080                 return -EOPNOTSUPP;
1081         }
1082
1083         return 0;
1084 }
1085
1086 static int
1087 vmxnet3_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec)
1088 {
1089         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1090         struct Vmxnet3_DriverShared *shared = adapter->shared;
1091         union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
1092         unsigned long flags;
1093
1094         if (!VMXNET3_VERSION_GE_3(adapter))
1095                 return -EOPNOTSUPP;
1096
1097         if ((ec->rx_coalesce_usecs == 0) &&
1098             (ec->use_adaptive_rx_coalesce == 0) &&
1099             (ec->tx_max_coalesced_frames == 0) &&
1100             (ec->rx_max_coalesced_frames == 0)) {
1101                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1102                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
1103                 goto done;
1104         }
1105
1106         if (ec->rx_coalesce_usecs != 0) {
1107                 u32 rbc_rate;
1108
1109                 if ((ec->use_adaptive_rx_coalesce != 0) ||
1110                     (ec->tx_max_coalesced_frames != 0) ||
1111                     (ec->rx_max_coalesced_frames != 0)) {
1112                         return -EINVAL;
1113                 }
1114
1115                 rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs);
1116                 if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE ||
1117                     rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) {
1118                         return -EINVAL;
1119                 }
1120
1121                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1122                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC;
1123                 adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate;
1124                 goto done;
1125         }
1126
1127         if (ec->use_adaptive_rx_coalesce != 0) {
1128                 if ((ec->rx_coalesce_usecs != 0) ||
1129                     (ec->tx_max_coalesced_frames != 0) ||
1130                     (ec->rx_max_coalesced_frames != 0)) {
1131                         return -EINVAL;
1132                 }
1133                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1134                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT;
1135                 goto done;
1136         }
1137
1138         if ((ec->tx_max_coalesced_frames != 0) ||
1139             (ec->rx_max_coalesced_frames != 0)) {
1140                 if ((ec->rx_coalesce_usecs != 0) ||
1141                     (ec->use_adaptive_rx_coalesce != 0)) {
1142                         return -EINVAL;
1143                 }
1144
1145                 if ((ec->tx_max_coalesced_frames >
1146                     VMXNET3_COAL_STATIC_MAX_DEPTH) ||
1147                     (ec->rx_max_coalesced_frames >
1148                      VMXNET3_COAL_STATIC_MAX_DEPTH)) {
1149                         return -EINVAL;
1150                 }
1151
1152                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1153                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC;
1154
1155                 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth =
1156                         (ec->tx_max_coalesced_frames ?
1157                          ec->tx_max_coalesced_frames :
1158                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
1159
1160                 adapter->coal_conf->coalPara.coalStatic.rx_depth =
1161                         (ec->rx_max_coalesced_frames ?
1162                          ec->rx_max_coalesced_frames :
1163                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
1164
1165                 adapter->coal_conf->coalPara.coalStatic.tx_depth =
1166                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH;
1167                 goto done;
1168         }
1169
1170 done:
1171         adapter->default_coal_mode = false;
1172         if (netif_running(netdev)) {
1173                 spin_lock_irqsave(&adapter->cmd_lock, flags);
1174                 cmdInfo->varConf.confVer = 1;
1175                 cmdInfo->varConf.confLen =
1176                         cpu_to_le32(sizeof(*adapter->coal_conf));
1177                 cmdInfo->varConf.confPA  = cpu_to_le64(adapter->coal_conf_pa);
1178                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
1179                                        VMXNET3_CMD_SET_COALESCE);
1180                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
1181         }
1182
1183         return 0;
1184 }
1185
1186 static const struct ethtool_ops vmxnet3_ethtool_ops = {
1187         .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
1188                                      ETHTOOL_COALESCE_MAX_FRAMES |
1189                                      ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1190         .get_drvinfo       = vmxnet3_get_drvinfo,
1191         .get_regs_len      = vmxnet3_get_regs_len,
1192         .get_regs          = vmxnet3_get_regs,
1193         .get_wol           = vmxnet3_get_wol,
1194         .set_wol           = vmxnet3_set_wol,
1195         .get_link          = ethtool_op_get_link,
1196         .get_coalesce      = vmxnet3_get_coalesce,
1197         .set_coalesce      = vmxnet3_set_coalesce,
1198         .get_strings       = vmxnet3_get_strings,
1199         .get_sset_count    = vmxnet3_get_sset_count,
1200         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
1201         .get_ringparam     = vmxnet3_get_ringparam,
1202         .set_ringparam     = vmxnet3_set_ringparam,
1203         .get_rxnfc         = vmxnet3_get_rxnfc,
1204         .set_rxnfc         = vmxnet3_set_rxnfc,
1205 #ifdef VMXNET3_RSS
1206         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
1207         .get_rxfh          = vmxnet3_get_rss,
1208         .set_rxfh          = vmxnet3_set_rss,
1209 #endif
1210         .get_link_ksettings = vmxnet3_get_link_ksettings,
1211 };
1212
1213 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
1214 {
1215         netdev->ethtool_ops = &vmxnet3_ethtool_ops;
1216 }