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         int i, j;
 227
 228         if (stringset != ETH_SS_STATS)
 229                 return;
 230
 231         for (j = 0; j < adapter->num_tx_queues; j++) {
 232                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 233                         ethtool_sprintf(&buf, vmxnet3_tq_dev_stats[i].desc);
 234                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 235                         ethtool_sprintf(&buf, vmxnet3_tq_driver_stats[i].desc);
 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                         ethtool_sprintf(&buf, vmxnet3_rq_dev_stats[i].desc);
 241                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 242                         ethtool_sprintf(&buf, vmxnet3_rq_driver_stats[i].desc);
 243         }
 244
 245         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 246                 ethtool_sprintf(&buf, vmxnet3_global_stats[i].desc);
 247 }
 248
 249 netdev_features_t vmxnet3_fix_features(struct net_device *netdev,
 250                                        netdev_features_t features)
 251 {
 252         /* If Rx checksum is disabled, then LRO should also be disabled */
 253         if (!(features & NETIF_F_RXCSUM))
 254                 features &= ~NETIF_F_LRO;
 255
 256         return features;
 257 }
 258
 259 netdev_features_t vmxnet3_features_check(struct sk_buff *skb,
 260                                          struct net_device *netdev,
 261                                          netdev_features_t features)
 262 {
 263         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 264
 265         /* Validate if the tunneled packet is being offloaded by the device */
 266         if (VMXNET3_VERSION_GE_4(adapter) &&
 267             skb->encapsulation && skb->ip_summed == CHECKSUM_PARTIAL) {
 268                 u8 l4_proto = 0;
 269                 u16 port;
 270                 struct udphdr *udph;
 271
 272                 switch (vlan_get_protocol(skb)) {
 273                 case htons(ETH_P_IP):
 274                         l4_proto = ip_hdr(skb)->protocol;
 275                         break;
 276                 case htons(ETH_P_IPV6):
 277                         l4_proto = ipv6_hdr(skb)->nexthdr;
 278                         break;
 279                 default:
 280                         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 281                 }
 282
 283                 switch (l4_proto) {
 284                 case IPPROTO_UDP:
 285                         udph = udp_hdr(skb);
 286                         port = be16_to_cpu(udph->dest);
 287                         /* Check if offloaded port is supported */
 288                         if (port != GENEVE_UDP_PORT &&
 289                             port != IANA_VXLAN_UDP_PORT &&
 290                             port != VXLAN_UDP_PORT) {
 291                                 return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 292                         }
 293                         break;
 294                 default:
 295                         return features & ~(NETIF_F_CSUM_MASK | NETIF_F_GSO_MASK);
 296                 }
 297         }
 298         return features;
 299 }
 300
 301 static void vmxnet3_enable_encap_offloads(struct net_device *netdev)
 302 {
 303         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 304
 305         if (VMXNET3_VERSION_GE_4(adapter)) {
 306                 netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_RXCSUM |
 307                         NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
 308                         NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
 309                         NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL |
 310                         NETIF_F_GSO_UDP_TUNNEL_CSUM;
 311         }
 312 }
 313
 314 static void vmxnet3_disable_encap_offloads(struct net_device *netdev)
 315 {
 316         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 317
 318         if (VMXNET3_VERSION_GE_4(adapter)) {
 319                 netdev->hw_enc_features &= ~(NETIF_F_SG | NETIF_F_RXCSUM |
 320                         NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX |
 321                         NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 |
 322                         NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL |
 323                         NETIF_F_GSO_UDP_TUNNEL_CSUM);
 324         }
 325 }
 326
 327 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features)
 328 {
 329         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 330         unsigned long flags;
 331         netdev_features_t changed = features ^ netdev->features;
 332         netdev_features_t tun_offload_mask = NETIF_F_GSO_UDP_TUNNEL |
 333                                              NETIF_F_GSO_UDP_TUNNEL_CSUM;
 334         u8 udp_tun_enabled = (netdev->features & tun_offload_mask) != 0;
 335
 336         if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO |
 337                        NETIF_F_HW_VLAN_CTAG_RX | tun_offload_mask)) {
 338                 if (features & NETIF_F_RXCSUM)
 339                         adapter->shared->devRead.misc.uptFeatures |=
 340                         UPT1_F_RXCSUM;
 341                 else
 342                         adapter->shared->devRead.misc.uptFeatures &=
 343                         ~UPT1_F_RXCSUM;
 344
 345                 /* update hardware LRO capability accordingly */
 346                 if (features & NETIF_F_LRO)
 347                         adapter->shared->devRead.misc.uptFeatures |=
 348                                                         UPT1_F_LRO;
 349                 else
 350                         adapter->shared->devRead.misc.uptFeatures &=
 351                                                         ~UPT1_F_LRO;
 352
 353                 if (features & NETIF_F_HW_VLAN_CTAG_RX)
 354                         adapter->shared->devRead.misc.uptFeatures |=
 355                         UPT1_F_RXVLAN;
 356                 else
 357                         adapter->shared->devRead.misc.uptFeatures &=
 358                         ~UPT1_F_RXVLAN;
 359
 360                 if ((features & tun_offload_mask) != 0 && !udp_tun_enabled) {
 361                         vmxnet3_enable_encap_offloads(netdev);
 362                         adapter->shared->devRead.misc.uptFeatures |=
 363                         UPT1_F_RXINNEROFLD;
 364                 } else if ((features & tun_offload_mask) == 0 &&
 365                            udp_tun_enabled) {
 366                         vmxnet3_disable_encap_offloads(netdev);
 367                         adapter->shared->devRead.misc.uptFeatures &=
 368                         ~UPT1_F_RXINNEROFLD;
 369                 }
 370
 371                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 372                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 373                                        VMXNET3_CMD_UPDATE_FEATURE);
 374                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 375         }
 376         return 0;
 377 }
 378
 379 static void
 380 vmxnet3_get_ethtool_stats(struct net_device *netdev,
 381                           struct ethtool_stats *stats, u64  *buf)
 382 {
 383         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 384         unsigned long flags;
 385         u8 *base;
 386         int i;
 387         int j = 0;
 388
 389         spin_lock_irqsave(&adapter->cmd_lock, flags);
 390         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 391         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 392
 393         /* this does assume each counter is 64-bit wide */
 394         for (j = 0; j < adapter->num_tx_queues; j++) {
 395                 base = (u8 *)&adapter->tqd_start[j].stats;
 396                 *buf++ = (u64)j;
 397                 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++)
 398                         *buf++ = *(u64 *)(base +
 399                                           vmxnet3_tq_dev_stats[i].offset);
 400
 401                 base = (u8 *)&adapter->tx_queue[j].stats;
 402                 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++)
 403                         *buf++ = *(u64 *)(base +
 404                                           vmxnet3_tq_driver_stats[i].offset);
 405         }
 406
 407         for (j = 0; j < adapter->num_rx_queues; j++) {
 408                 base = (u8 *)&adapter->rqd_start[j].stats;
 409                 *buf++ = (u64) j;
 410                 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++)
 411                         *buf++ = *(u64 *)(base +
 412                                           vmxnet3_rq_dev_stats[i].offset);
 413
 414                 base = (u8 *)&adapter->rx_queue[j].stats;
 415                 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++)
 416                         *buf++ = *(u64 *)(base +
 417                                           vmxnet3_rq_driver_stats[i].offset);
 418         }
 419
 420         base = (u8 *)adapter;
 421         for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++)
 422                 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset);
 423 }
 424
 425
 426 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with
 427  * the version 2 of the vmxnet3 support for ethtool(8) --register-dump.
 428  * Therefore, if any registers are added, removed or modified, then a version
 429  * bump and a corresponding change in the vmxnet3 support for ethtool(8)
 430  * --register-dump would be required.
 431  */
 432 static void
 433 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 434 {
 435         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 436         u32 *buf = p;
 437         int i = 0, j = 0;
 438
 439         memset(p, 0, vmxnet3_get_regs_len(netdev));
 440
 441         regs->version = 2;
 442
 443         /* Update vmxnet3_get_regs_len if we want to dump more registers */
 444
 445         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS);
 446         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS);
 447         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL);
 448         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH);
 449         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 450         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL);
 451         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH);
 452         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR);
 453         buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR);
 454
 455         buf[j++] = adapter->intr.num_intrs;
 456         for (i = 0; i < adapter->intr.num_intrs; i++) {
 457                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR
 458                                                  + i * VMXNET3_REG_ALIGN);
 459         }
 460
 461         buf[j++] = adapter->num_tx_queues;
 462         for (i = 0; i < adapter->num_tx_queues; i++) {
 463                 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i];
 464
 465                 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD +
 466                                                  i * VMXNET3_REG_ALIGN);
 467
 468                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA);
 469                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA);
 470                 buf[j++] = tq->tx_ring.size;
 471                 buf[j++] = tq->tx_ring.next2fill;
 472                 buf[j++] = tq->tx_ring.next2comp;
 473                 buf[j++] = tq->tx_ring.gen;
 474
 475                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA);
 476                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA);
 477                 buf[j++] = tq->data_ring.size;
 478                 buf[j++] = tq->txdata_desc_size;
 479
 480                 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA);
 481                 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA);
 482                 buf[j++] = tq->comp_ring.size;
 483                 buf[j++] = tq->comp_ring.next2proc;
 484                 buf[j++] = tq->comp_ring.gen;
 485
 486                 buf[j++] = tq->stopped;
 487         }
 488
 489         buf[j++] = adapter->num_rx_queues;
 490         for (i = 0; i < adapter->num_rx_queues; i++) {
 491                 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i];
 492
 493                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD +
 494                                                   i * VMXNET3_REG_ALIGN);
 495                 buf[j++] =  VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 +
 496                                                   i * VMXNET3_REG_ALIGN);
 497
 498                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA);
 499                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA);
 500                 buf[j++] = rq->rx_ring[0].size;
 501                 buf[j++] = rq->rx_ring[0].next2fill;
 502                 buf[j++] = rq->rx_ring[0].next2comp;
 503                 buf[j++] = rq->rx_ring[0].gen;
 504
 505                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA);
 506                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA);
 507                 buf[j++] = rq->rx_ring[1].size;
 508                 buf[j++] = rq->rx_ring[1].next2fill;
 509                 buf[j++] = rq->rx_ring[1].next2comp;
 510                 buf[j++] = rq->rx_ring[1].gen;
 511
 512                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA);
 513                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA);
 514                 buf[j++] = rq->rx_ring[0].size;
 515                 buf[j++] = rq->data_ring.desc_size;
 516
 517                 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA);
 518                 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA);
 519                 buf[j++] = rq->comp_ring.size;
 520                 buf[j++] = rq->comp_ring.next2proc;
 521                 buf[j++] = rq->comp_ring.gen;
 522         }
 523 }
 524
 525
 526 static void
 527 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 528 {
 529         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 530
 531         wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC;
 532         wol->wolopts = adapter->wol;
 533 }
 534
 535
 536 static int
 537 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 538 {
 539         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 540
 541         if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST |
 542                             WAKE_MAGICSECURE)) {
 543                 return -EOPNOTSUPP;
 544         }
 545
 546         adapter->wol = wol->wolopts;
 547
 548         device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol);
 549
 550         return 0;
 551 }
 552
 553
 554 static int
 555 vmxnet3_get_link_ksettings(struct net_device *netdev,
 556                            struct ethtool_link_ksettings *ecmd)
 557 {
 558         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 559
 560         ethtool_link_ksettings_zero_link_mode(ecmd, supported);
 561         ethtool_link_ksettings_add_link_mode(ecmd, supported, 10000baseT_Full);
 562         ethtool_link_ksettings_add_link_mode(ecmd, supported, 1000baseT_Full);
 563         ethtool_link_ksettings_add_link_mode(ecmd, supported, TP);
 564         ethtool_link_ksettings_zero_link_mode(ecmd, advertising);
 565         ethtool_link_ksettings_add_link_mode(ecmd, advertising, TP);
 566         ecmd->base.port = PORT_TP;
 567
 568         if (adapter->link_speed) {
 569                 ecmd->base.speed = adapter->link_speed;
 570                 ecmd->base.duplex = DUPLEX_FULL;
 571         } else {
 572                 ecmd->base.speed = SPEED_UNKNOWN;
 573                 ecmd->base.duplex = DUPLEX_UNKNOWN;
 574         }
 575         return 0;
 576 }
 577
 578 static void
 579 vmxnet3_get_ringparam(struct net_device *netdev,
 580                       struct ethtool_ringparam *param,
 581                       struct kernel_ethtool_ringparam *kernel_param,
 582                       struct netlink_ext_ack *extack)
 583 {
 584         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 585
 586         param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE;
 587         param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE;
 588         param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ?
 589                 VMXNET3_RXDATA_DESC_MAX_SIZE : 0;
 590         param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE;
 591
 592         param->rx_pending = adapter->rx_ring_size;
 593         param->tx_pending = adapter->tx_ring_size;
 594         param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ?
 595                 adapter->rxdata_desc_size : 0;
 596         param->rx_jumbo_pending = adapter->rx_ring2_size;
 597 }
 598
 599 static int
 600 vmxnet3_set_ringparam(struct net_device *netdev,
 601                       struct ethtool_ringparam *param,
 602                       struct kernel_ethtool_ringparam *kernel_param,
 603                       struct netlink_ext_ack *extack)
 604 {
 605         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 606         u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size;
 607         u16 new_rxdata_desc_size;
 608         u32 sz;
 609         int err = 0;
 610
 611         if (param->tx_pending == 0 || param->tx_pending >
 612                                                 VMXNET3_TX_RING_MAX_SIZE)
 613                 return -EINVAL;
 614
 615         if (param->rx_pending == 0 || param->rx_pending >
 616                                                 VMXNET3_RX_RING_MAX_SIZE)
 617                 return -EINVAL;
 618
 619         if (param->rx_jumbo_pending == 0 ||
 620             param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE)
 621                 return -EINVAL;
 622
 623         /* if adapter not yet initialized, do nothing */
 624         if (adapter->rx_buf_per_pkt == 0) {
 625                 netdev_err(netdev, "adapter not completely initialized, "
 626                            "ring size cannot be changed yet\n");
 627                 return -EOPNOTSUPP;
 628         }
 629
 630         if (VMXNET3_VERSION_GE_3(adapter)) {
 631                 if (param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE)
 632                         return -EINVAL;
 633         } else if (param->rx_mini_pending != 0) {
 634                 return -EINVAL;
 635         }
 636
 637         /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */
 638         new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) &
 639                                                         ~VMXNET3_RING_SIZE_MASK;
 640         new_tx_ring_size = min_t(u32, new_tx_ring_size,
 641                                  VMXNET3_TX_RING_MAX_SIZE);
 642         if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size %
 643                                                 VMXNET3_RING_SIZE_ALIGN) != 0)
 644                 return -EINVAL;
 645
 646         /* ring0 has to be a multiple of
 647          * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN
 648          */
 649         sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN;
 650         new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz;
 651         new_rx_ring_size = min_t(u32, new_rx_ring_size,
 652                                  VMXNET3_RX_RING_MAX_SIZE / sz * sz);
 653         if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size %
 654                                                            sz) != 0)
 655                 return -EINVAL;
 656
 657         /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */
 658         new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) &
 659                                 ~VMXNET3_RING_SIZE_MASK;
 660         new_rx_ring2_size = min_t(u32, new_rx_ring2_size,
 661                                   VMXNET3_RX_RING2_MAX_SIZE);
 662
 663         /* rx data ring buffer size has to be a multiple of
 664          * VMXNET3_RXDATA_DESC_SIZE_ALIGN
 665          */
 666         new_rxdata_desc_size =
 667                 (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) &
 668                 ~VMXNET3_RXDATA_DESC_SIZE_MASK;
 669         new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size,
 670                                      VMXNET3_RXDATA_DESC_MAX_SIZE);
 671
 672         if (new_tx_ring_size == adapter->tx_ring_size &&
 673             new_rx_ring_size == adapter->rx_ring_size &&
 674             new_rx_ring2_size == adapter->rx_ring2_size &&
 675             new_rxdata_desc_size == adapter->rxdata_desc_size) {
 676                 return 0;
 677         }
 678
 679         /*
 680          * Reset_work may be in the middle of resetting the device, wait for its
 681          * completion.
 682          */
 683         while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state))
 684                 usleep_range(1000, 2000);
 685
 686         if (netif_running(netdev)) {
 687                 vmxnet3_quiesce_dev(adapter);
 688                 vmxnet3_reset_dev(adapter);
 689
 690                 /* recreate the rx queue and the tx queue based on the
 691                  * new sizes */
 692                 vmxnet3_tq_destroy_all(adapter);
 693                 vmxnet3_rq_destroy_all(adapter);
 694
 695                 err = vmxnet3_create_queues(adapter, new_tx_ring_size,
 696                                             new_rx_ring_size, new_rx_ring2_size,
 697                                             adapter->txdata_desc_size,
 698                                             new_rxdata_desc_size);
 699                 if (err) {
 700                         /* failed, most likely because of OOM, try default
 701                          * size */
 702                         netdev_err(netdev, "failed to apply new sizes, "
 703                                    "try the default ones\n");
 704                         new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE;
 705                         new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE;
 706                         new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE;
 707                         new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ?
 708                                 VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
 709
 710                         err = vmxnet3_create_queues(adapter,
 711                                                     new_tx_ring_size,
 712                                                     new_rx_ring_size,
 713                                                     new_rx_ring2_size,
 714                                                     adapter->txdata_desc_size,
 715                                                     new_rxdata_desc_size);
 716                         if (err) {
 717                                 netdev_err(netdev, "failed to create queues "
 718                                            "with default sizes. Closing it\n");
 719                                 goto out;
 720                         }
 721                 }
 722
 723                 err = vmxnet3_activate_dev(adapter);
 724                 if (err)
 725                         netdev_err(netdev, "failed to re-activate, error %d."
 726                                    " Closing it\n", err);
 727         }
 728         adapter->tx_ring_size = new_tx_ring_size;
 729         adapter->rx_ring_size = new_rx_ring_size;
 730         adapter->rx_ring2_size = new_rx_ring2_size;
 731         adapter->rxdata_desc_size = new_rxdata_desc_size;
 732
 733 out:
 734         clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state);
 735         if (err)
 736                 vmxnet3_force_close(adapter);
 737
 738         return err;
 739 }
 740
 741 static int
 742 vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter,
 743                           struct ethtool_rxnfc *info)
 744 {
 745         enum Vmxnet3_RSSField rss_fields;
 746
 747         if (netif_running(adapter->netdev)) {
 748                 unsigned long flags;
 749
 750                 spin_lock_irqsave(&adapter->cmd_lock, flags);
 751
 752                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 753                                        VMXNET3_CMD_GET_RSS_FIELDS);
 754                 rss_fields = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 755                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 756         } else {
 757                 rss_fields = adapter->rss_fields;
 758         }
 759
 760         info->data = 0;
 761
 762         /* Report default options for RSS on vmxnet3 */
 763         switch (info->flow_type) {
 764         case TCP_V4_FLOW:
 765         case TCP_V6_FLOW:
 766                 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3 |
 767                               RXH_IP_SRC | RXH_IP_DST;
 768                 break;
 769         case UDP_V4_FLOW:
 770                 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP4)
 771                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 772                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 773                 break;
 774         case AH_ESP_V4_FLOW:
 775         case AH_V4_FLOW:
 776         case ESP_V4_FLOW:
 777                 if (rss_fields & VMXNET3_RSS_FIELDS_ESPIP4)
 778                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 779                 fallthrough;
 780         case SCTP_V4_FLOW:
 781         case IPV4_FLOW:
 782                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 783                 break;
 784         case UDP_V6_FLOW:
 785                 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP6)
 786                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 787                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 788                 break;
 789         case AH_ESP_V6_FLOW:
 790         case AH_V6_FLOW:
 791         case ESP_V6_FLOW:
 792                 if (VMXNET3_VERSION_GE_6(adapter) &&
 793                     (rss_fields & VMXNET3_RSS_FIELDS_ESPIP6))
 794                         info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
 795                 fallthrough;
 796         case SCTP_V6_FLOW:
 797         case IPV6_FLOW:
 798                 info->data |= RXH_IP_SRC | RXH_IP_DST;
 799                 break;
 800         default:
 801                 return -EINVAL;
 802         }
 803
 804         return 0;
 805 }
 806
 807 static int
 808 vmxnet3_set_rss_hash_opt(struct net_device *netdev,
 809                          struct vmxnet3_adapter *adapter,
 810                          struct ethtool_rxnfc *nfc)
 811 {
 812         enum Vmxnet3_RSSField rss_fields = adapter->rss_fields;
 813
 814         /* RSS does not support anything other than hashing
 815          * to queues on src and dst IPs and ports
 816          */
 817         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
 818                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
 819                 return -EINVAL;
 820
 821         switch (nfc->flow_type) {
 822         case TCP_V4_FLOW:
 823         case TCP_V6_FLOW:
 824                 if (!(nfc->data & RXH_IP_SRC) ||
 825                     !(nfc->data & RXH_IP_DST) ||
 826                     !(nfc->data & RXH_L4_B_0_1) ||
 827                     !(nfc->data & RXH_L4_B_2_3))
 828                         return -EINVAL;
 829                 break;
 830         case UDP_V4_FLOW:
 831                 if (!(nfc->data & RXH_IP_SRC) ||
 832                     !(nfc->data & RXH_IP_DST))
 833                         return -EINVAL;
 834                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 835                 case 0:
 836                         rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP4;
 837                         break;
 838                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 839                         rss_fields |= VMXNET3_RSS_FIELDS_UDPIP4;
 840                         break;
 841                 default:
 842                         return -EINVAL;
 843                 }
 844                 break;
 845         case UDP_V6_FLOW:
 846                 if (!(nfc->data & RXH_IP_SRC) ||
 847                     !(nfc->data & RXH_IP_DST))
 848                         return -EINVAL;
 849                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 850                 case 0:
 851                         rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP6;
 852                         break;
 853                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 854                         rss_fields |= VMXNET3_RSS_FIELDS_UDPIP6;
 855                         break;
 856                 default:
 857                         return -EINVAL;
 858                 }
 859                 break;
 860         case ESP_V4_FLOW:
 861         case AH_V4_FLOW:
 862         case AH_ESP_V4_FLOW:
 863                 if (!(nfc->data & RXH_IP_SRC) ||
 864                     !(nfc->data & RXH_IP_DST))
 865                         return -EINVAL;
 866                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 867                 case 0:
 868                         rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP4;
 869                         break;
 870                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 871                         rss_fields |= VMXNET3_RSS_FIELDS_ESPIP4;
 872                 break;
 873                 default:
 874                         return -EINVAL;
 875                 }
 876                 break;
 877         case ESP_V6_FLOW:
 878         case AH_V6_FLOW:
 879         case AH_ESP_V6_FLOW:
 880                 if (!VMXNET3_VERSION_GE_6(adapter))
 881                         return -EOPNOTSUPP;
 882                 if (!(nfc->data & RXH_IP_SRC) ||
 883                     !(nfc->data & RXH_IP_DST))
 884                         return -EINVAL;
 885                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
 886                 case 0:
 887                         rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP6;
 888                         break;
 889                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
 890                         rss_fields |= VMXNET3_RSS_FIELDS_ESPIP6;
 891                         break;
 892                 default:
 893                         return -EINVAL;
 894                 }
 895                 break;
 896         case SCTP_V4_FLOW:
 897         case SCTP_V6_FLOW:
 898                 if (!(nfc->data & RXH_IP_SRC) ||
 899                     !(nfc->data & RXH_IP_DST) ||
 900                     (nfc->data & RXH_L4_B_0_1) ||
 901                     (nfc->data & RXH_L4_B_2_3))
 902                         return -EINVAL;
 903                 break;
 904         default:
 905                 return -EINVAL;
 906         }
 907
 908         /* if we changed something we need to update flags */
 909         if (rss_fields != adapter->rss_fields) {
 910                 adapter->default_rss_fields = false;
 911                 if (netif_running(netdev)) {
 912                         struct Vmxnet3_DriverShared *shared = adapter->shared;
 913                         union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
 914                         unsigned long flags;
 915
 916                         spin_lock_irqsave(&adapter->cmd_lock, flags);
 917                         cmdInfo->setRssFields = rss_fields;
 918                         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 919                                                VMXNET3_CMD_SET_RSS_FIELDS);
 920
 921                         /* Not all requested RSS may get applied, so get and
 922                          * cache what was actually applied.
 923                          */
 924                         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
 925                                                VMXNET3_CMD_GET_RSS_FIELDS);
 926                         adapter->rss_fields =
 927                                 VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD);
 928                         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
 929                 } else {
 930                         /* When the device is activated, we will try to apply
 931                          * these rules and cache the applied value later.
 932                          */
 933                         adapter->rss_fields = rss_fields;
 934                 }
 935         }
 936         return 0;
 937 }
 938
 939 static int
 940 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info,
 941                   u32 *rules)
 942 {
 943         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 944         int err = 0;
 945
 946         switch (info->cmd) {
 947         case ETHTOOL_GRXRINGS:
 948                 info->data = adapter->num_rx_queues;
 949                 break;
 950         case ETHTOOL_GRXFH:
 951                 if (!VMXNET3_VERSION_GE_4(adapter)) {
 952                         err = -EOPNOTSUPP;
 953                         break;
 954                 }
 955 #ifdef VMXNET3_RSS
 956                 if (!adapter->rss) {
 957                         err = -EOPNOTSUPP;
 958                         break;
 959                 }
 960 #endif
 961                 err = vmxnet3_get_rss_hash_opts(adapter, info);
 962                 break;
 963         default:
 964                 err = -EOPNOTSUPP;
 965                 break;
 966         }
 967
 968         return err;
 969 }
 970
 971 static int
 972 vmxnet3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info)
 973 {
 974         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
 975         int err = 0;
 976
 977         if (!VMXNET3_VERSION_GE_4(adapter)) {
 978                 err = -EOPNOTSUPP;
 979                 goto done;
 980         }
 981 #ifdef VMXNET3_RSS
 982         if (!adapter->rss) {
 983                 err = -EOPNOTSUPP;
 984                 goto done;
 985         }
 986 #endif
 987
 988         switch (info->cmd) {
 989         case ETHTOOL_SRXFH:
 990                 err = vmxnet3_set_rss_hash_opt(netdev, adapter, info);
 991                 break;
 992         default:
 993                 err = -EOPNOTSUPP;
 994                 break;
 995         }
 996
 997 done:
 998         return err;
 999 }
1000
1001 #ifdef VMXNET3_RSS
1002 static u32
1003 vmxnet3_get_rss_indir_size(struct net_device *netdev)
1004 {
1005         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1006         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1007
1008         return rssConf->indTableSize;
1009 }
1010
1011 static int
1012 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc)
1013 {
1014         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1015         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1016         unsigned int n = rssConf->indTableSize;
1017
1018         if (hfunc)
1019                 *hfunc = ETH_RSS_HASH_TOP;
1020         if (!p)
1021                 return 0;
1022         if (n > UPT1_RSS_MAX_IND_TABLE_SIZE)
1023                 return 0;
1024         while (n--)
1025                 p[n] = rssConf->indTable[n];
1026         return 0;
1027
1028 }
1029
1030 static int
1031 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key,
1032                 const u8 hfunc)
1033 {
1034         unsigned int i;
1035         unsigned long flags;
1036         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1037         struct UPT1_RSSConf *rssConf = adapter->rss_conf;
1038
1039         /* We do not allow change in unsupported parameters */
1040         if (key ||
1041             (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP))
1042                 return -EOPNOTSUPP;
1043         if (!p)
1044                 return 0;
1045         for (i = 0; i < rssConf->indTableSize; i++)
1046                 rssConf->indTable[i] = p[i];
1047
1048         spin_lock_irqsave(&adapter->cmd_lock, flags);
1049         VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
1050                                VMXNET3_CMD_UPDATE_RSSIDT);
1051         spin_unlock_irqrestore(&adapter->cmd_lock, flags);
1052
1053         return 0;
1054
1055 }
1056 #endif
1057
1058 static int vmxnet3_get_coalesce(struct net_device *netdev,
1059                                 struct ethtool_coalesce *ec,
1060                                 struct kernel_ethtool_coalesce *kernel_coal,
1061                                 struct netlink_ext_ack *extack)
1062 {
1063         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1064
1065         if (!VMXNET3_VERSION_GE_3(adapter))
1066                 return -EOPNOTSUPP;
1067
1068         switch (adapter->coal_conf->coalMode) {
1069         case VMXNET3_COALESCE_DISABLED:
1070                 /* struct ethtool_coalesce is already initialized to 0 */
1071                 break;
1072         case VMXNET3_COALESCE_ADAPT:
1073                 ec->use_adaptive_rx_coalesce = true;
1074                 break;
1075         case VMXNET3_COALESCE_STATIC:
1076                 ec->tx_max_coalesced_frames =
1077                         adapter->coal_conf->coalPara.coalStatic.tx_comp_depth;
1078                 ec->rx_max_coalesced_frames =
1079                         adapter->coal_conf->coalPara.coalStatic.rx_depth;
1080                 break;
1081         case VMXNET3_COALESCE_RBC: {
1082                 u32 rbc_rate;
1083
1084                 rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate;
1085                 ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate);
1086         }
1087                 break;
1088         default:
1089                 return -EOPNOTSUPP;
1090         }
1091
1092         return 0;
1093 }
1094
1095 static int vmxnet3_set_coalesce(struct net_device *netdev,
1096                                 struct ethtool_coalesce *ec,
1097                                 struct kernel_ethtool_coalesce *kernel_coal,
1098                                 struct netlink_ext_ack *extack)
1099 {
1100         struct vmxnet3_adapter *adapter = netdev_priv(netdev);
1101         struct Vmxnet3_DriverShared *shared = adapter->shared;
1102         union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo;
1103         unsigned long flags;
1104
1105         if (!VMXNET3_VERSION_GE_3(adapter))
1106                 return -EOPNOTSUPP;
1107
1108         if ((ec->rx_coalesce_usecs == 0) &&
1109             (ec->use_adaptive_rx_coalesce == 0) &&
1110             (ec->tx_max_coalesced_frames == 0) &&
1111             (ec->rx_max_coalesced_frames == 0)) {
1112                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1113                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED;
1114                 goto done;
1115         }
1116
1117         if (ec->rx_coalesce_usecs != 0) {
1118                 u32 rbc_rate;
1119
1120                 if ((ec->use_adaptive_rx_coalesce != 0) ||
1121                     (ec->tx_max_coalesced_frames != 0) ||
1122                     (ec->rx_max_coalesced_frames != 0)) {
1123                         return -EINVAL;
1124                 }
1125
1126                 rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs);
1127                 if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE ||
1128                     rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) {
1129                         return -EINVAL;
1130                 }
1131
1132                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1133                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC;
1134                 adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate;
1135                 goto done;
1136         }
1137
1138         if (ec->use_adaptive_rx_coalesce != 0) {
1139                 if (ec->tx_max_coalesced_frames != 0 ||
1140                     ec->rx_max_coalesced_frames != 0) {
1141                         return -EINVAL;
1142                 }
1143                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1144                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT;
1145                 goto done;
1146         }
1147
1148         if ((ec->tx_max_coalesced_frames != 0) ||
1149             (ec->rx_max_coalesced_frames != 0)) {
1150                 if ((ec->tx_max_coalesced_frames >
1151                     VMXNET3_COAL_STATIC_MAX_DEPTH) ||
1152                     (ec->rx_max_coalesced_frames >
1153                      VMXNET3_COAL_STATIC_MAX_DEPTH)) {
1154                         return -EINVAL;
1155                 }
1156
1157                 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));
1158                 adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC;
1159
1160                 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth =
1161                         (ec->tx_max_coalesced_frames ?
1162                          ec->tx_max_coalesced_frames :
1163                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
1164
1165                 adapter->coal_conf->coalPara.coalStatic.rx_depth =
1166                         (ec->rx_max_coalesced_frames ?
1167                          ec->rx_max_coalesced_frames :
1168                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH);
1169
1170                 adapter->coal_conf->coalPara.coalStatic.tx_depth =
1171                          VMXNET3_COAL_STATIC_DEFAULT_DEPTH;
1172                 goto done;
1173         }
1174
1175 done:
1176         adapter->default_coal_mode = false;
1177         if (netif_running(netdev)) {
1178                 spin_lock_irqsave(&adapter->cmd_lock, flags);
1179                 cmdInfo->varConf.confVer = 1;
1180                 cmdInfo->varConf.confLen =
1181                         cpu_to_le32(sizeof(*adapter->coal_conf));
1182                 cmdInfo->varConf.confPA  = cpu_to_le64(adapter->coal_conf_pa);
1183                 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD,
1184                                        VMXNET3_CMD_SET_COALESCE);
1185                 spin_unlock_irqrestore(&adapter->cmd_lock, flags);
1186         }
1187
1188         return 0;
1189 }
1190
1191 static const struct ethtool_ops vmxnet3_ethtool_ops = {
1192         .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS |
1193                                      ETHTOOL_COALESCE_MAX_FRAMES |
1194                                      ETHTOOL_COALESCE_USE_ADAPTIVE_RX,
1195         .get_drvinfo       = vmxnet3_get_drvinfo,
1196         .get_regs_len      = vmxnet3_get_regs_len,
1197         .get_regs          = vmxnet3_get_regs,
1198         .get_wol           = vmxnet3_get_wol,
1199         .set_wol           = vmxnet3_set_wol,
1200         .get_link          = ethtool_op_get_link,
1201         .get_coalesce      = vmxnet3_get_coalesce,
1202         .set_coalesce      = vmxnet3_set_coalesce,
1203         .get_strings       = vmxnet3_get_strings,
1204         .get_sset_count    = vmxnet3_get_sset_count,
1205         .get_ethtool_stats = vmxnet3_get_ethtool_stats,
1206         .get_ringparam     = vmxnet3_get_ringparam,
1207         .set_ringparam     = vmxnet3_set_ringparam,
1208         .get_rxnfc         = vmxnet3_get_rxnfc,
1209         .set_rxnfc         = vmxnet3_set_rxnfc,
1210 #ifdef VMXNET3_RSS
1211         .get_rxfh_indir_size = vmxnet3_get_rss_indir_size,
1212         .get_rxfh          = vmxnet3_get_rss,
1213         .set_rxfh          = vmxnet3_set_rss,
1214 #endif
1215         .get_link_ksettings = vmxnet3_get_link_ksettings,
1216 };
1217
1218 void vmxnet3_set_ethtool_ops(struct net_device *netdev)
1219 {
1220         netdev->ethtool_ops = &vmxnet3_ethtool_ops;
1221 }