1 /* 2 * Linux driver for VMware's vmxnet3 ethernet NIC. 3 * 4 * Copyright (C) 2008-2009, VMware, Inc. All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; version 2 of the License and no later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 13 * NON INFRINGEMENT. See the GNU General Public License for more 14 * details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * The full GNU General Public License is included in this distribution in 21 * the file called "COPYING". 22 * 23 * Maintained by: Shreyas Bhatewara <pv-drivers@vmware.com> 24 * 25 */ 26 27 28 #include "vmxnet3_int.h" 29 30 struct vmxnet3_stat_desc { 31 char desc[ETH_GSTRING_LEN]; 32 int offset; 33 }; 34 35 36 /* per tq stats maintained by the device */ 37 static const struct vmxnet3_stat_desc 38 vmxnet3_tq_dev_stats[] = { 39 /* description, offset */ 40 { "Tx Queue#", 0 }, 41 { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) }, 42 { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) }, 43 { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) }, 44 { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) }, 45 { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) }, 46 { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) }, 47 { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) }, 48 { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) }, 49 { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) }, 50 { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) }, 51 }; 52 53 /* per tq stats maintained by the driver */ 54 static const struct vmxnet3_stat_desc 55 vmxnet3_tq_driver_stats[] = { 56 /* description, offset */ 57 {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats, 58 drop_total) }, 59 { " too many frags", offsetof(struct vmxnet3_tq_driver_stats, 60 drop_too_many_frags) }, 61 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 62 drop_oversized_hdr) }, 63 { " hdr err", offsetof(struct vmxnet3_tq_driver_stats, 64 drop_hdr_inspect_err) }, 65 { " tso", offsetof(struct vmxnet3_tq_driver_stats, 66 drop_tso) }, 67 { " ring full", offsetof(struct vmxnet3_tq_driver_stats, 68 tx_ring_full) }, 69 { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats, 70 linearized) }, 71 { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats, 72 copy_skb_header) }, 73 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 74 oversized_hdr) }, 75 }; 76 77 /* per rq stats maintained by the device */ 78 static const struct vmxnet3_stat_desc 79 vmxnet3_rq_dev_stats[] = { 80 { "Rx Queue#", 0 }, 81 { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) }, 82 { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) }, 83 { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) }, 84 { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) }, 85 { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) }, 86 { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) }, 87 { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) }, 88 { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) }, 89 { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) }, 90 { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) }, 91 }; 92 93 /* per rq stats maintained by the driver */ 94 static const struct vmxnet3_stat_desc 95 vmxnet3_rq_driver_stats[] = { 96 /* description, offset */ 97 { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats, 98 drop_total) }, 99 { " err", offsetof(struct vmxnet3_rq_driver_stats, 100 drop_err) }, 101 { " fcs", offsetof(struct vmxnet3_rq_driver_stats, 102 drop_fcs) }, 103 { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats, 104 rx_buf_alloc_failure) }, 105 }; 106 107 /* global stats maintained by the driver */ 108 static const struct vmxnet3_stat_desc 109 vmxnet3_global_stats[] = { 110 /* description, offset */ 111 { "tx timeout count", offsetof(struct vmxnet3_adapter, 112 tx_timeout_count) } 113 }; 114 115 116 struct rtnl_link_stats64 * 117 vmxnet3_get_stats64(struct net_device *netdev, 118 struct rtnl_link_stats64 *stats) 119 { 120 struct vmxnet3_adapter *adapter; 121 struct vmxnet3_tq_driver_stats *drvTxStats; 122 struct vmxnet3_rq_driver_stats *drvRxStats; 123 struct UPT1_TxStats *devTxStats; 124 struct UPT1_RxStats *devRxStats; 125 unsigned long flags; 126 int i; 127 128 adapter = netdev_priv(netdev); 129 130 /* Collect the dev stats into the shared area */ 131 spin_lock_irqsave(&adapter->cmd_lock, flags); 132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 133 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 134 135 for (i = 0; i < adapter->num_tx_queues; i++) { 136 devTxStats = &adapter->tqd_start[i].stats; 137 drvTxStats = &adapter->tx_queue[i].stats; 138 stats->tx_packets += devTxStats->ucastPktsTxOK + 139 devTxStats->mcastPktsTxOK + 140 devTxStats->bcastPktsTxOK; 141 stats->tx_bytes += devTxStats->ucastBytesTxOK + 142 devTxStats->mcastBytesTxOK + 143 devTxStats->bcastBytesTxOK; 144 stats->tx_errors += devTxStats->pktsTxError; 145 stats->tx_dropped += drvTxStats->drop_total; 146 } 147 148 for (i = 0; i < adapter->num_rx_queues; i++) { 149 devRxStats = &adapter->rqd_start[i].stats; 150 drvRxStats = &adapter->rx_queue[i].stats; 151 stats->rx_packets += devRxStats->ucastPktsRxOK + 152 devRxStats->mcastPktsRxOK + 153 devRxStats->bcastPktsRxOK; 154 155 stats->rx_bytes += devRxStats->ucastBytesRxOK + 156 devRxStats->mcastBytesRxOK + 157 devRxStats->bcastBytesRxOK; 158 159 stats->rx_errors += devRxStats->pktsRxError; 160 stats->rx_dropped += drvRxStats->drop_total; 161 stats->multicast += devRxStats->mcastPktsRxOK; 162 } 163 164 return stats; 165 } 166 167 static int 168 vmxnet3_get_sset_count(struct net_device *netdev, int sset) 169 { 170 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 171 switch (sset) { 172 case ETH_SS_STATS: 173 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) + 174 ARRAY_SIZE(vmxnet3_tq_driver_stats)) * 175 adapter->num_tx_queues + 176 (ARRAY_SIZE(vmxnet3_rq_dev_stats) + 177 ARRAY_SIZE(vmxnet3_rq_driver_stats)) * 178 adapter->num_rx_queues + 179 ARRAY_SIZE(vmxnet3_global_stats); 180 default: 181 return -EOPNOTSUPP; 182 } 183 } 184 185 186 /* 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 | 267 NETIF_F_HW_VLAN_CTAG_RX)) { 268 if (features & NETIF_F_RXCSUM) 269 adapter->shared->devRead.misc.uptFeatures |= 270 UPT1_F_RXCSUM; 271 else 272 adapter->shared->devRead.misc.uptFeatures &= 273 ~UPT1_F_RXCSUM; 274 275 /* update hardware LRO capability accordingly */ 276 if (features & NETIF_F_LRO) 277 adapter->shared->devRead.misc.uptFeatures |= 278 UPT1_F_LRO; 279 else 280 adapter->shared->devRead.misc.uptFeatures &= 281 ~UPT1_F_LRO; 282 283 if (features & NETIF_F_HW_VLAN_CTAG_RX) 284 adapter->shared->devRead.misc.uptFeatures |= 285 UPT1_F_RXVLAN; 286 else 287 adapter->shared->devRead.misc.uptFeatures &= 288 ~UPT1_F_RXVLAN; 289 290 spin_lock_irqsave(&adapter->cmd_lock, flags); 291 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 292 VMXNET3_CMD_UPDATE_FEATURE); 293 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 294 } 295 return 0; 296 } 297 298 static void 299 vmxnet3_get_ethtool_stats(struct net_device *netdev, 300 struct ethtool_stats *stats, u64 *buf) 301 { 302 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 303 unsigned long flags; 304 u8 *base; 305 int i; 306 int j = 0; 307 308 spin_lock_irqsave(&adapter->cmd_lock, flags); 309 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 310 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 311 312 /* this does assume each counter is 64-bit wide */ 313 for (j = 0; j < adapter->num_tx_queues; j++) { 314 base = (u8 *)&adapter->tqd_start[j].stats; 315 *buf++ = (u64)j; 316 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) 317 *buf++ = *(u64 *)(base + 318 vmxnet3_tq_dev_stats[i].offset); 319 320 base = (u8 *)&adapter->tx_queue[j].stats; 321 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) 322 *buf++ = *(u64 *)(base + 323 vmxnet3_tq_driver_stats[i].offset); 324 } 325 326 for (j = 0; j < adapter->num_rx_queues; j++) { 327 base = (u8 *)&adapter->rqd_start[j].stats; 328 *buf++ = (u64) j; 329 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) 330 *buf++ = *(u64 *)(base + 331 vmxnet3_rq_dev_stats[i].offset); 332 333 base = (u8 *)&adapter->rx_queue[j].stats; 334 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) 335 *buf++ = *(u64 *)(base + 336 vmxnet3_rq_driver_stats[i].offset); 337 } 338 339 base = (u8 *)adapter; 340 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) 341 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset); 342 } 343 344 345 static void 346 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 347 { 348 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 349 u32 *buf = p; 350 int i = 0, j = 0; 351 352 memset(p, 0, vmxnet3_get_regs_len(netdev)); 353 354 regs->version = 1; 355 356 /* Update vmxnet3_get_regs_len if we want to dump more registers */ 357 358 /* make each ring use multiple of 16 bytes */ 359 for (i = 0; i < adapter->num_tx_queues; i++) { 360 buf[j++] = adapter->tx_queue[i].tx_ring.next2fill; 361 buf[j++] = adapter->tx_queue[i].tx_ring.next2comp; 362 buf[j++] = adapter->tx_queue[i].tx_ring.gen; 363 buf[j++] = 0; 364 365 buf[j++] = adapter->tx_queue[i].comp_ring.next2proc; 366 buf[j++] = adapter->tx_queue[i].comp_ring.gen; 367 buf[j++] = adapter->tx_queue[i].stopped; 368 buf[j++] = 0; 369 } 370 371 for (i = 0; i < adapter->num_rx_queues; i++) { 372 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2fill; 373 buf[j++] = adapter->rx_queue[i].rx_ring[0].next2comp; 374 buf[j++] = adapter->rx_queue[i].rx_ring[0].gen; 375 buf[j++] = 0; 376 377 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2fill; 378 buf[j++] = adapter->rx_queue[i].rx_ring[1].next2comp; 379 buf[j++] = adapter->rx_queue[i].rx_ring[1].gen; 380 buf[j++] = 0; 381 382 buf[j++] = adapter->rx_queue[i].comp_ring.next2proc; 383 buf[j++] = adapter->rx_queue[i].comp_ring.gen; 384 buf[j++] = 0; 385 buf[j++] = 0; 386 } 387 388 } 389 390 391 static void 392 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 393 { 394 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 395 396 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC; 397 wol->wolopts = adapter->wol; 398 } 399 400 401 static int 402 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 403 { 404 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 405 406 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST | 407 WAKE_MAGICSECURE)) { 408 return -EOPNOTSUPP; 409 } 410 411 adapter->wol = wol->wolopts; 412 413 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 414 415 return 0; 416 } 417 418 419 static int 420 vmxnet3_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd) 421 { 422 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 423 424 ecmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_1000baseT_Full | 425 SUPPORTED_TP; 426 ecmd->advertising = ADVERTISED_TP; 427 ecmd->port = PORT_TP; 428 ecmd->transceiver = XCVR_INTERNAL; 429 430 if (adapter->link_speed) { 431 ethtool_cmd_speed_set(ecmd, adapter->link_speed); 432 ecmd->duplex = DUPLEX_FULL; 433 } else { 434 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 435 ecmd->duplex = DUPLEX_UNKNOWN; 436 } 437 return 0; 438 } 439 440 441 static void 442 vmxnet3_get_ringparam(struct net_device *netdev, 443 struct ethtool_ringparam *param) 444 { 445 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 446 447 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; 448 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; 449 param->rx_mini_max_pending = 0; 450 param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE; 451 452 param->rx_pending = adapter->rx_ring_size; 453 param->tx_pending = adapter->tx_ring_size; 454 param->rx_mini_pending = 0; 455 param->rx_jumbo_pending = adapter->rx_ring2_size; 456 } 457 458 459 static int 460 vmxnet3_set_ringparam(struct net_device *netdev, 461 struct ethtool_ringparam *param) 462 { 463 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 464 u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size; 465 u32 sz; 466 int err = 0; 467 468 if (param->tx_pending == 0 || param->tx_pending > 469 VMXNET3_TX_RING_MAX_SIZE) 470 return -EINVAL; 471 472 if (param->rx_pending == 0 || param->rx_pending > 473 VMXNET3_RX_RING_MAX_SIZE) 474 return -EINVAL; 475 476 if (param->rx_jumbo_pending == 0 || 477 param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE) 478 return -EINVAL; 479 480 /* if adapter not yet initialized, do nothing */ 481 if (adapter->rx_buf_per_pkt == 0) { 482 netdev_err(netdev, "adapter not completely initialized, " 483 "ring size cannot be changed yet\n"); 484 return -EOPNOTSUPP; 485 } 486 487 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ 488 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & 489 ~VMXNET3_RING_SIZE_MASK; 490 new_tx_ring_size = min_t(u32, new_tx_ring_size, 491 VMXNET3_TX_RING_MAX_SIZE); 492 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % 493 VMXNET3_RING_SIZE_ALIGN) != 0) 494 return -EINVAL; 495 496 /* ring0 has to be a multiple of 497 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN 498 */ 499 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; 500 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; 501 new_rx_ring_size = min_t(u32, new_rx_ring_size, 502 VMXNET3_RX_RING_MAX_SIZE / sz * sz); 503 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % 504 sz) != 0) 505 return -EINVAL; 506 507 /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */ 508 new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) & 509 ~VMXNET3_RING_SIZE_MASK; 510 new_rx_ring2_size = min_t(u32, new_rx_ring2_size, 511 VMXNET3_RX_RING2_MAX_SIZE); 512 513 if (new_tx_ring_size == adapter->tx_ring_size && 514 new_rx_ring_size == adapter->rx_ring_size && 515 new_rx_ring2_size == adapter->rx_ring2_size) { 516 return 0; 517 } 518 519 /* 520 * Reset_work may be in the middle of resetting the device, wait for its 521 * completion. 522 */ 523 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) 524 msleep(1); 525 526 if (netif_running(netdev)) { 527 vmxnet3_quiesce_dev(adapter); 528 vmxnet3_reset_dev(adapter); 529 530 /* recreate the rx queue and the tx queue based on the 531 * new sizes */ 532 vmxnet3_tq_destroy_all(adapter); 533 vmxnet3_rq_destroy_all(adapter); 534 535 err = vmxnet3_create_queues(adapter, new_tx_ring_size, 536 new_rx_ring_size, new_rx_ring2_size); 537 538 if (err) { 539 /* failed, most likely because of OOM, try default 540 * size */ 541 netdev_err(netdev, "failed to apply new sizes, " 542 "try the default ones\n"); 543 new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; 544 new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE; 545 new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; 546 err = vmxnet3_create_queues(adapter, 547 new_tx_ring_size, 548 new_rx_ring_size, 549 new_rx_ring2_size); 550 if (err) { 551 netdev_err(netdev, "failed to create queues " 552 "with default sizes. Closing it\n"); 553 goto out; 554 } 555 } 556 557 err = vmxnet3_activate_dev(adapter); 558 if (err) 559 netdev_err(netdev, "failed to re-activate, error %d." 560 " Closing it\n", err); 561 } 562 adapter->tx_ring_size = new_tx_ring_size; 563 adapter->rx_ring_size = new_rx_ring_size; 564 adapter->rx_ring2_size = new_rx_ring2_size; 565 566 out: 567 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); 568 if (err) 569 vmxnet3_force_close(adapter); 570 571 return err; 572 } 573 574 575 static int 576 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 577 u32 *rules) 578 { 579 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 580 switch (info->cmd) { 581 case ETHTOOL_GRXRINGS: 582 info->data = adapter->num_rx_queues; 583 return 0; 584 } 585 return -EOPNOTSUPP; 586 } 587 588 #ifdef VMXNET3_RSS 589 static u32 590 vmxnet3_get_rss_indir_size(struct net_device *netdev) 591 { 592 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 593 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 594 595 return rssConf->indTableSize; 596 } 597 598 static int 599 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc) 600 { 601 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 602 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 603 unsigned int n = rssConf->indTableSize; 604 605 if (hfunc) 606 *hfunc = ETH_RSS_HASH_TOP; 607 if (!p) 608 return 0; 609 while (n--) 610 p[n] = rssConf->indTable[n]; 611 return 0; 612 613 } 614 615 static int 616 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key, 617 const u8 hfunc) 618 { 619 unsigned int i; 620 unsigned long flags; 621 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 622 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 623 624 /* We do not allow change in unsupported parameters */ 625 if (key || 626 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 627 return -EOPNOTSUPP; 628 if (!p) 629 return 0; 630 for (i = 0; i < rssConf->indTableSize; i++) 631 rssConf->indTable[i] = p[i]; 632 633 spin_lock_irqsave(&adapter->cmd_lock, flags); 634 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 635 VMXNET3_CMD_UPDATE_RSSIDT); 636 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 637 638 return 0; 639 640 } 641 #endif 642 643 static const struct ethtool_ops vmxnet3_ethtool_ops = { 644 .get_settings = vmxnet3_get_settings, 645 .get_drvinfo = vmxnet3_get_drvinfo, 646 .get_regs_len = vmxnet3_get_regs_len, 647 .get_regs = vmxnet3_get_regs, 648 .get_wol = vmxnet3_get_wol, 649 .set_wol = vmxnet3_set_wol, 650 .get_link = ethtool_op_get_link, 651 .get_strings = vmxnet3_get_strings, 652 .get_sset_count = vmxnet3_get_sset_count, 653 .get_ethtool_stats = vmxnet3_get_ethtool_stats, 654 .get_ringparam = vmxnet3_get_ringparam, 655 .set_ringparam = vmxnet3_set_ringparam, 656 .get_rxnfc = vmxnet3_get_rxnfc, 657 #ifdef VMXNET3_RSS 658 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, 659 .get_rxfh = vmxnet3_get_rss, 660 .set_rxfh = vmxnet3_set_rss, 661 #endif 662 }; 663 664 void vmxnet3_set_ethtool_ops(struct net_device *netdev) 665 { 666 netdev->ethtool_ops = &vmxnet3_ethtool_ops; 667 } 668