1 /* 2 * Linux driver for VMware's vmxnet3 ethernet NIC. 3 * 4 * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; version 2 of the License and no later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 13 * NON INFRINGEMENT. See the GNU General Public License for more 14 * details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * The full GNU General Public License is included in this distribution in 21 * the file called "COPYING". 22 * 23 * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> 24 * 25 */ 26 27 28 #include "vmxnet3_int.h" 29 30 struct vmxnet3_stat_desc { 31 char desc[ETH_GSTRING_LEN]; 32 int offset; 33 }; 34 35 36 /* per tq stats maintained by the device */ 37 static const struct vmxnet3_stat_desc 38 vmxnet3_tq_dev_stats[] = { 39 /* description, offset */ 40 { "Tx Queue#", 0 }, 41 { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) }, 42 { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) }, 43 { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) }, 44 { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) }, 45 { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) }, 46 { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) }, 47 { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) }, 48 { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) }, 49 { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) }, 50 { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) }, 51 }; 52 53 /* per tq stats maintained by the driver */ 54 static const struct vmxnet3_stat_desc 55 vmxnet3_tq_driver_stats[] = { 56 /* description, offset */ 57 {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats, 58 drop_total) }, 59 { " too many frags", offsetof(struct vmxnet3_tq_driver_stats, 60 drop_too_many_frags) }, 61 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 62 drop_oversized_hdr) }, 63 { " hdr err", offsetof(struct vmxnet3_tq_driver_stats, 64 drop_hdr_inspect_err) }, 65 { " tso", offsetof(struct vmxnet3_tq_driver_stats, 66 drop_tso) }, 67 { " ring full", offsetof(struct vmxnet3_tq_driver_stats, 68 tx_ring_full) }, 69 { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats, 70 linearized) }, 71 { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats, 72 copy_skb_header) }, 73 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 74 oversized_hdr) }, 75 }; 76 77 /* per rq stats maintained by the device */ 78 static const struct vmxnet3_stat_desc 79 vmxnet3_rq_dev_stats[] = { 80 { "Rx Queue#", 0 }, 81 { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) }, 82 { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) }, 83 { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) }, 84 { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) }, 85 { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) }, 86 { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) }, 87 { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) }, 88 { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) }, 89 { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) }, 90 { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) }, 91 }; 92 93 /* per rq stats maintained by the driver */ 94 static const struct vmxnet3_stat_desc 95 vmxnet3_rq_driver_stats[] = { 96 /* description, offset */ 97 { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats, 98 drop_total) }, 99 { " err", offsetof(struct vmxnet3_rq_driver_stats, 100 drop_err) }, 101 { " fcs", offsetof(struct vmxnet3_rq_driver_stats, 102 drop_fcs) }, 103 { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats, 104 rx_buf_alloc_failure) }, 105 }; 106 107 /* gloabl stats maintained by the driver */ 108 static const struct vmxnet3_stat_desc 109 vmxnet3_global_stats[] = { 110 /* description, offset */ 111 { "tx timeout count", offsetof(struct vmxnet3_adapter, 112 tx_timeout_count) } 113 }; 114 115 116 struct rtnl_link_stats64 * 117 vmxnet3_get_stats64(struct net_device *netdev, 118 struct rtnl_link_stats64 *stats) 119 { 120 struct vmxnet3_adapter *adapter; 121 struct vmxnet3_tq_driver_stats *drvTxStats; 122 struct vmxnet3_rq_driver_stats *drvRxStats; 123 struct UPT1_TxStats *devTxStats; 124 struct UPT1_RxStats *devRxStats; 125 unsigned long flags; 126 int i; 127 128 adapter = netdev_priv(netdev); 129 130 /* Collect the dev stats into the shared area */ 131 spin_lock_irqsave(&adapter->cmd_lock, flags); 132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 133 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 134 135 for (i = 0; i < adapter->num_tx_queues; i++) { 136 devTxStats = &adapter->tqd_start[i].stats; 137 drvTxStats = &adapter->tx_queue[i].stats; 138 stats->tx_packets += devTxStats->ucastPktsTxOK + 139 devTxStats->mcastPktsTxOK + 140 devTxStats->bcastPktsTxOK; 141 stats->tx_bytes += devTxStats->ucastBytesTxOK + 142 devTxStats->mcastBytesTxOK + 143 devTxStats->bcastBytesTxOK; 144 stats->tx_errors += devTxStats->pktsTxError; 145 stats->tx_dropped += drvTxStats->drop_total; 146 } 147 148 for (i = 0; i < adapter->num_rx_queues; i++) { 149 devRxStats = &adapter->rqd_start[i].stats; 150 drvRxStats = &adapter->rx_queue[i].stats; 151 stats->rx_packets += devRxStats->ucastPktsRxOK + 152 devRxStats->mcastPktsRxOK + 153 devRxStats->bcastPktsRxOK; 154 155 stats->rx_bytes += devRxStats->ucastBytesRxOK + 156 devRxStats->mcastBytesRxOK + 157 devRxStats->bcastBytesRxOK; 158 159 stats->rx_errors += devRxStats->pktsRxError; 160 stats->rx_dropped += drvRxStats->drop_total; 161 stats->multicast += devRxStats->mcastPktsRxOK; 162 } 163 164 return stats; 165 } 166 167 static int 168 vmxnet3_get_sset_count(struct net_device *netdev, int sset) 169 { 170 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 171 switch (sset) { 172 case ETH_SS_STATS: 173 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) + 174 ARRAY_SIZE(vmxnet3_tq_driver_stats)) * 175 adapter->num_tx_queues + 176 (ARRAY_SIZE(vmxnet3_rq_dev_stats) + 177 ARRAY_SIZE(vmxnet3_rq_driver_stats)) * 178 adapter->num_rx_queues + 179 ARRAY_SIZE(vmxnet3_global_stats); 180 default: 181 return -EOPNOTSUPP; 182 } 183 } 184 185 186 /* Should be multiple of 4 */ 187 #define NUM_TX_REGS 8 188 #define NUM_RX_REGS 12 189 190 static int 191 vmxnet3_get_regs_len(struct net_device *netdev) 192 { 193 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 194 return (adapter->num_tx_queues * NUM_TX_REGS * sizeof(u32) + 195 adapter->num_rx_queues * NUM_RX_REGS * sizeof(u32)); 196 } 197 198 199 static void 200 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 201 { 202 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 203 204 strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver)); 205 206 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT, 207 sizeof(drvinfo->version)); 208 209 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 210 sizeof(drvinfo->bus_info)); 211 drvinfo->n_stats = vmxnet3_get_sset_count(netdev, ETH_SS_STATS); 212 drvinfo->testinfo_len = 0; 213 drvinfo->eedump_len = 0; 214 drvinfo->regdump_len = vmxnet3_get_regs_len(netdev); 215 } 216 217 218 static void 219 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 220 { 221 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 222 if (stringset == ETH_SS_STATS) { 223 int i, j; 224 for (j = 0; j < adapter->num_tx_queues; j++) { 225 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) { 226 memcpy(buf, vmxnet3_tq_dev_stats[i].desc, 227 ETH_GSTRING_LEN); 228 buf += ETH_GSTRING_LEN; 229 } 230 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); 231 i++) { 232 memcpy(buf, vmxnet3_tq_driver_stats[i].desc, 233 ETH_GSTRING_LEN); 234 buf += ETH_GSTRING_LEN; 235 } 236 } 237 238 for (j = 0; j < adapter->num_rx_queues; j++) { 239 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) { 240 memcpy(buf, vmxnet3_rq_dev_stats[i].desc, 241 ETH_GSTRING_LEN); 242 buf += ETH_GSTRING_LEN; 243 } 244 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); 245 i++) { 246 memcpy(buf, vmxnet3_rq_driver_stats[i].desc, 247 ETH_GSTRING_LEN); 248 buf += ETH_GSTRING_LEN; 249 } 250 } 251 252 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) { 253 memcpy(buf, vmxnet3_global_stats[i].desc, 254 ETH_GSTRING_LEN); 255 buf += ETH_GSTRING_LEN; 256 } 257 } 258 } 259 260 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features) 261 { 262 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 263 unsigned long flags; 264 netdev_features_t changed = features ^ netdev->features; 265 266 if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_HW_VLAN_RX)) { 267 if (features & NETIF_F_RXCSUM) 268 adapter->shared->devRead.misc.uptFeatures |= 269 UPT1_F_RXCSUM; 270 else 271 adapter->shared->devRead.misc.uptFeatures &= 272 ~UPT1_F_RXCSUM; 273 274 /* update harware LRO capability accordingly */ 275 if (features & NETIF_F_LRO) 276 adapter->shared->devRead.misc.uptFeatures |= 277 UPT1_F_LRO; 278 else 279 adapter->shared->devRead.misc.uptFeatures &= 280 ~UPT1_F_LRO; 281 282 if (features & NETIF_F_HW_VLAN_RX) 283 adapter->shared->devRead.misc.uptFeatures |= 284 UPT1_F_RXVLAN; 285 else 286 adapter->shared->devRead.misc.uptFeatures &= 287 ~UPT1_F_RXVLAN; 288 289 spin_lock_irqsave(&adapter->cmd_lock, flags); 290 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 291 VMXNET3_CMD_UPDATE_FEATURE); 292 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 293 } 294 return 0; 295 } 296 297 static void 298 vmxnet3_get_ethtool_stats(struct net_device *netdev, 299 struct ethtool_stats *stats, u64 *buf) 300 { 301 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 302 unsigned long flags; 303 u8 *base; 304 int i; 305 int j = 0; 306 307 spin_lock_irqsave(&adapter->cmd_lock, flags); 308 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 309 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 310 311 /* this does assume each counter is 64-bit wide */ 312 for (j = 0; j < adapter->num_tx_queues; j++) { 313 base = (u8 *)&adapter->tqd_start[j].stats; 314 *buf++ = (u64)j; 315 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) 316 *buf++ = *(u64 *)(base + 317 vmxnet3_tq_dev_stats[i].offset); 318 319 base = (u8 *)&adapter->tx_queue[j].stats; 320 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) 321 *buf++ = *(u64 *)(base + 322 vmxnet3_tq_driver_stats[i].offset); 323 } 324 325 for (j = 0; j < adapter->num_tx_queues; j++) { 326 base = (u8 *)&adapter->rqd_start[j].stats; 327 *buf++ = (u64) j; 328 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) 329 *buf++ = *(u64 *)(base + 330 vmxnet3_rq_dev_stats[i].offset); 331 332 base = (u8 *)&adapter->rx_queue[j].stats; 333 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) 334 *buf++ = *(u64 *)(base + 335 vmxnet3_rq_driver_stats[i].offset); 336 } 337 338 base = (u8 *)adapter; 339 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) 340 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset); 341 } 342 343 344 static void 345 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 346 { 347 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 348 u32 *buf = p; 349 int i = 0, j = 0; 350 351 memset(p, 0, vmxnet3_get_regs_len(netdev)); 352 353 regs->version = 1; 354 355 /* Update vmxnet3_get_regs_len if we want to dump more registers */ 356 357 /* make each ring use multiple of 16 bytes */ 358 for (i = 0; i < adapter->num_tx_queues; i++) { 359 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill; 360 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp; 361 buf[j++] = adapter->tx_queue[i].tx_ring.gen; 362 buf[j++] = 0; 363 364 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc; 365 buf[j++] = adapter->tx_queue[i].comp_ring.gen; 366 buf[j++] = adapter->tx_queue[i].stopped; 367 buf[j++] = 0; 368 } 369 370 for (i = 0; i < adapter->num_rx_queues; i++) { 371 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill; 372 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp; 373 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen; 374 buf[j++] = 0; 375 376 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill; 377 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp; 378 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen; 379 buf[j++] = 0; 380 381 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc; 382 buf[j++] = adapter->rx_queue[i].comp_ring.gen; 383 buf[j++] = 0; 384 buf[j++] = 0; 385 } 386 387 } 388 389 390 static void 391 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 392 { 393 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 394 395 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC; 396 wol->wolopts = adapter->wol; 397 } 398 399 400 static int 401 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 402 { 403 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 404 405 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST | 406 WAKE_MAGICSECURE)) { 407 return -EOPNOTSUPP; 408 } 409 410 adapter->wol = wol->wolopts; 411 412 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 413 414 return 0; 415 } 416 417 418 static int 419 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 420 { 421 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 422 423 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full | 424 SUPPORTED_TP; 425 ecmd->advertising = ADVERTISED_TP; 426 ecmd->port = PORT_TP; 427 ecmd->transceiver = XCVR_INTERNAL; 428 429 if (adapter->link_speed) { 430 ethtool_cmd_speed_set(ecmd, adapter->link_speed); 431 ecmd->duplex = DUPLEX_FULL; 432 } else { 433 ethtool_cmd_speed_set(ecmd, -1); 434 ecmd->duplex = -1; 435 } 436 return 0; 437 } 438 439 440 static void 441 vmxnet3_get_ringparam(struct net_device *netdev, 442 struct ethtool_ringparam *param) 443 { 444 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 445 446 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; 447 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; 448 param->rx_mini_max_pending = 0; 449 param->rx_jumbo_max_pending = 0; 450 451 param->rx_pending = adapter->rx_queue[0].rx_ring[0].size; 452 param->tx_pending = adapter->tx_queue[0].tx_ring.size; 453 param->rx_mini_pending = 0; 454 param->rx_jumbo_pending = 0; 455 } 456 457 458 static int 459 vmxnet3_set_ringparam(struct net_device *netdev, 460 struct ethtool_ringparam *param) 461 { 462 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 463 u32 new_tx_ring_size, new_rx_ring_size; 464 u32 sz; 465 int err = 0; 466 467 if (param->tx_pending == 0 || param->tx_pending > 468 VMXNET3_TX_RING_MAX_SIZE) 469 return -EINVAL; 470 471 if (param->rx_pending == 0 || param->rx_pending > 472 VMXNET3_RX_RING_MAX_SIZE) 473 return -EINVAL; 474 475 /* if adapter not yet initialized, do nothing */ 476 if (adapter->rx_buf_per_pkt == 0) { 477 netdev_err(netdev, "adapter not completely initialized, " 478 "ring size cannot be changed yet\n"); 479 return -EOPNOTSUPP; 480 } 481 482 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ 483 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & 484 ~VMXNET3_RING_SIZE_MASK; 485 new_tx_ring_size = min_t(u32, new_tx_ring_size, 486 VMXNET3_TX_RING_MAX_SIZE); 487 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % 488 VMXNET3_RING_SIZE_ALIGN) != 0) 489 return -EINVAL; 490 491 /* ring0 has to be a multiple of 492 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN 493 */ 494 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; 495 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; 496 new_rx_ring_size = min_t(u32, new_rx_ring_size, 497 VMXNET3_RX_RING_MAX_SIZE / sz * sz); 498 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % 499 sz) != 0) 500 return -EINVAL; 501 502 if (new_tx_ring_size == adapter->tx_queue[0].tx_ring.size && 503 new_rx_ring_size == adapter->rx_queue[0].rx_ring[0].size) { 504 return 0; 505 } 506 507 /* 508 * Reset_work may be in the middle of resetting the device, wait for its 509 * completion. 510 */ 511 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) 512 msleep(1); 513 514 if (netif_running(netdev)) { 515 vmxnet3_quiesce_dev(adapter); 516 vmxnet3_reset_dev(adapter); 517 518 /* recreate the rx queue and the tx queue based on the 519 * new sizes */ 520 vmxnet3_tq_destroy_all(adapter); 521 vmxnet3_rq_destroy_all(adapter); 522 523 err = vmxnet3_create_queues(adapter, new_tx_ring_size, 524 new_rx_ring_size, VMXNET3_DEF_RX_RING_SIZE); 525 526 if (err) { 527 /* failed, most likely because of OOM, try default 528 * size */ 529 netdev_err(netdev, "failed to apply new sizes, " 530 "try the default ones\n"); 531 err = vmxnet3_create_queues(adapter, 532 VMXNET3_DEF_TX_RING_SIZE, 533 VMXNET3_DEF_RX_RING_SIZE, 534 VMXNET3_DEF_RX_RING_SIZE); 535 if (err) { 536 netdev_err(netdev, "failed to create queues " 537 "with default sizes. Closing it\n"); 538 goto out; 539 } 540 } 541 542 err = vmxnet3_activate_dev(adapter); 543 if (err) 544 netdev_err(netdev, "failed to re-activate, error %d." 545 " Closing it\n", err); 546 } 547 548 out: 549 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); 550 if (err) 551 vmxnet3_force_close(adapter); 552 553 return err; 554 } 555 556 557 static int 558 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 559 u32 *rules) 560 { 561 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 562 switch (info->cmd) { 563 case ETHTOOL_GRXRINGS: 564 info->data = adapter->num_rx_queues; 565 return 0; 566 } 567 return -EOPNOTSUPP; 568 } 569 570 #ifdef VMXNET3_RSS 571 static u32 572 vmxnet3_get_rss_indir_size(struct net_device *netdev) 573 { 574 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 575 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 576 577 return rssConf->indTableSize; 578 } 579 580 static int 581 vmxnet3_get_rss_indir(struct net_device *netdev, u32 *p) 582 { 583 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 584 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 585 unsigned int n = rssConf->indTableSize; 586 587 while (n--) 588 p[n] = rssConf->indTable[n]; 589 return 0; 590 591 } 592 593 static int 594 vmxnet3_set_rss_indir(struct net_device *netdev, const u32 *p) 595 { 596 unsigned int i; 597 unsigned long flags; 598 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 599 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 600 601 for (i = 0; i < rssConf->indTableSize; i++) 602 rssConf->indTable[i] = p[i]; 603 604 spin_lock_irqsave(&adapter->cmd_lock, flags); 605 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 606 VMXNET3_CMD_UPDATE_RSSIDT); 607 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 608 609 return 0; 610 611 } 612 #endif 613 614 static const struct ethtool_ops vmxnet3_ethtool_ops = { 615 .get_settings = vmxnet3_get_settings, 616 .get_drvinfo = vmxnet3_get_drvinfo, 617 .get_regs_len = vmxnet3_get_regs_len, 618 .get_regs = vmxnet3_get_regs, 619 .get_wol = vmxnet3_get_wol, 620 .set_wol = vmxnet3_set_wol, 621 .get_link = ethtool_op_get_link, 622 .get_strings = vmxnet3_get_strings, 623 .get_sset_count = vmxnet3_get_sset_count, 624 .get_ethtool_stats = vmxnet3_get_ethtool_stats, 625 .get_ringparam = vmxnet3_get_ringparam, 626 .set_ringparam = vmxnet3_set_ringparam, 627 .get_rxnfc = vmxnet3_get_rxnfc, 628 #ifdef VMXNET3_RSS 629 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, 630 .get_rxfh_indir = vmxnet3_get_rss_indir, 631 .set_rxfh_indir = vmxnet3_set_rss_indir, 632 #endif 633 }; 634 635 void vmxnet3_set_ethtool_ops(struct net_device *netdev) 636 { 637 SET_ETHTOOL_OPS(netdev, &vmxnet3_ethtool_ops); 638 } 639