1 /* 2 * Linux driver for VMware's vmxnet3 ethernet NIC. 3 * 4 * Copyright (C) 2008-2020, VMware, Inc. All Rights Reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License as published by the 8 * Free Software Foundation; version 2 of the License and no later version. 9 * 10 * This program is distributed in the hope that it will be useful, but 11 * WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or 13 * NON INFRINGEMENT. See the GNU General Public License for more 14 * details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * The full GNU General Public License is included in this distribution in 21 * the file called "COPYING". 22 * 23 * Maintained by: pv-drivers@vmware.com 24 * 25 */ 26 27 28 #include "vmxnet3_int.h" 29 30 struct vmxnet3_stat_desc { 31 char desc[ETH_GSTRING_LEN]; 32 int offset; 33 }; 34 35 36 /* per tq stats maintained by the device */ 37 static const struct vmxnet3_stat_desc 38 vmxnet3_tq_dev_stats[] = { 39 /* description, offset */ 40 { "Tx Queue#", 0 }, 41 { " TSO pkts tx", offsetof(struct UPT1_TxStats, TSOPktsTxOK) }, 42 { " TSO bytes tx", offsetof(struct UPT1_TxStats, TSOBytesTxOK) }, 43 { " ucast pkts tx", offsetof(struct UPT1_TxStats, ucastPktsTxOK) }, 44 { " ucast bytes tx", offsetof(struct UPT1_TxStats, ucastBytesTxOK) }, 45 { " mcast pkts tx", offsetof(struct UPT1_TxStats, mcastPktsTxOK) }, 46 { " mcast bytes tx", offsetof(struct UPT1_TxStats, mcastBytesTxOK) }, 47 { " bcast pkts tx", offsetof(struct UPT1_TxStats, bcastPktsTxOK) }, 48 { " bcast bytes tx", offsetof(struct UPT1_TxStats, bcastBytesTxOK) }, 49 { " pkts tx err", offsetof(struct UPT1_TxStats, pktsTxError) }, 50 { " pkts tx discard", offsetof(struct UPT1_TxStats, pktsTxDiscard) }, 51 }; 52 53 /* per tq stats maintained by the driver */ 54 static const struct vmxnet3_stat_desc 55 vmxnet3_tq_driver_stats[] = { 56 /* description, offset */ 57 {" drv dropped tx total", offsetof(struct vmxnet3_tq_driver_stats, 58 drop_total) }, 59 { " too many frags", offsetof(struct vmxnet3_tq_driver_stats, 60 drop_too_many_frags) }, 61 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 62 drop_oversized_hdr) }, 63 { " hdr err", offsetof(struct vmxnet3_tq_driver_stats, 64 drop_hdr_inspect_err) }, 65 { " tso", offsetof(struct vmxnet3_tq_driver_stats, 66 drop_tso) }, 67 { " ring full", offsetof(struct vmxnet3_tq_driver_stats, 68 tx_ring_full) }, 69 { " pkts linearized", offsetof(struct vmxnet3_tq_driver_stats, 70 linearized) }, 71 { " hdr cloned", offsetof(struct vmxnet3_tq_driver_stats, 72 copy_skb_header) }, 73 { " giant hdr", offsetof(struct vmxnet3_tq_driver_stats, 74 oversized_hdr) }, 75 }; 76 77 /* per rq stats maintained by the device */ 78 static const struct vmxnet3_stat_desc 79 vmxnet3_rq_dev_stats[] = { 80 { "Rx Queue#", 0 }, 81 { " LRO pkts rx", offsetof(struct UPT1_RxStats, LROPktsRxOK) }, 82 { " LRO byte rx", offsetof(struct UPT1_RxStats, LROBytesRxOK) }, 83 { " ucast pkts rx", offsetof(struct UPT1_RxStats, ucastPktsRxOK) }, 84 { " ucast bytes rx", offsetof(struct UPT1_RxStats, ucastBytesRxOK) }, 85 { " mcast pkts rx", offsetof(struct UPT1_RxStats, mcastPktsRxOK) }, 86 { " mcast bytes rx", offsetof(struct UPT1_RxStats, mcastBytesRxOK) }, 87 { " bcast pkts rx", offsetof(struct UPT1_RxStats, bcastPktsRxOK) }, 88 { " bcast bytes rx", offsetof(struct UPT1_RxStats, bcastBytesRxOK) }, 89 { " pkts rx OOB", offsetof(struct UPT1_RxStats, pktsRxOutOfBuf) }, 90 { " pkts rx err", offsetof(struct UPT1_RxStats, pktsRxError) }, 91 }; 92 93 /* per rq stats maintained by the driver */ 94 static const struct vmxnet3_stat_desc 95 vmxnet3_rq_driver_stats[] = { 96 /* description, offset */ 97 { " drv dropped rx total", offsetof(struct vmxnet3_rq_driver_stats, 98 drop_total) }, 99 { " err", offsetof(struct vmxnet3_rq_driver_stats, 100 drop_err) }, 101 { " fcs", offsetof(struct vmxnet3_rq_driver_stats, 102 drop_fcs) }, 103 { " rx buf alloc fail", offsetof(struct vmxnet3_rq_driver_stats, 104 rx_buf_alloc_failure) }, 105 }; 106 107 /* global stats maintained by the driver */ 108 static const struct vmxnet3_stat_desc 109 vmxnet3_global_stats[] = { 110 /* description, offset */ 111 { "tx timeout count", offsetof(struct vmxnet3_adapter, 112 tx_timeout_count) } 113 }; 114 115 116 void 117 vmxnet3_get_stats64(struct net_device *netdev, 118 struct rtnl_link_stats64 *stats) 119 { 120 struct vmxnet3_adapter *adapter; 121 struct vmxnet3_tq_driver_stats *drvTxStats; 122 struct vmxnet3_rq_driver_stats *drvRxStats; 123 struct UPT1_TxStats *devTxStats; 124 struct UPT1_RxStats *devRxStats; 125 unsigned long flags; 126 int i; 127 128 adapter = netdev_priv(netdev); 129 130 /* Collect the dev stats into the shared area */ 131 spin_lock_irqsave(&adapter->cmd_lock, flags); 132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 133 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 134 135 for (i = 0; i < adapter->num_tx_queues; i++) { 136 devTxStats = &adapter->tqd_start[i].stats; 137 drvTxStats = &adapter->tx_queue[i].stats; 138 stats->tx_packets += devTxStats->ucastPktsTxOK + 139 devTxStats->mcastPktsTxOK + 140 devTxStats->bcastPktsTxOK; 141 stats->tx_bytes += devTxStats->ucastBytesTxOK + 142 devTxStats->mcastBytesTxOK + 143 devTxStats->bcastBytesTxOK; 144 stats->tx_errors += devTxStats->pktsTxError; 145 stats->tx_dropped += drvTxStats->drop_total; 146 } 147 148 for (i = 0; i < adapter->num_rx_queues; i++) { 149 devRxStats = &adapter->rqd_start[i].stats; 150 drvRxStats = &adapter->rx_queue[i].stats; 151 stats->rx_packets += devRxStats->ucastPktsRxOK + 152 devRxStats->mcastPktsRxOK + 153 devRxStats->bcastPktsRxOK; 154 155 stats->rx_bytes += devRxStats->ucastBytesRxOK + 156 devRxStats->mcastBytesRxOK + 157 devRxStats->bcastBytesRxOK; 158 159 stats->rx_errors += devRxStats->pktsRxError; 160 stats->rx_dropped += drvRxStats->drop_total; 161 stats->multicast += devRxStats->mcastPktsRxOK; 162 } 163 } 164 165 static int 166 vmxnet3_get_sset_count(struct net_device *netdev, int sset) 167 { 168 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 169 switch (sset) { 170 case ETH_SS_STATS: 171 return (ARRAY_SIZE(vmxnet3_tq_dev_stats) + 172 ARRAY_SIZE(vmxnet3_tq_driver_stats)) * 173 adapter->num_tx_queues + 174 (ARRAY_SIZE(vmxnet3_rq_dev_stats) + 175 ARRAY_SIZE(vmxnet3_rq_driver_stats)) * 176 adapter->num_rx_queues + 177 ARRAY_SIZE(vmxnet3_global_stats); 178 default: 179 return -EOPNOTSUPP; 180 } 181 } 182 183 184 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with 185 * the version 2 of the vmxnet3 support for ethtool(8) --register-dump. 186 * Therefore, if any registers are added, removed or modified, then a version 187 * bump and a corresponding change in the vmxnet3 support for ethtool(8) 188 * --register-dump would be required. 189 */ 190 static int 191 vmxnet3_get_regs_len(struct net_device *netdev) 192 { 193 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 194 195 return ((9 /* BAR1 registers */ + 196 (1 + adapter->intr.num_intrs) + 197 (1 + adapter->num_tx_queues * 17 /* Tx queue registers */) + 198 (1 + adapter->num_rx_queues * 23 /* Rx queue registers */)) * 199 sizeof(u32)); 200 } 201 202 203 static void 204 vmxnet3_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 205 { 206 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 207 208 strlcpy(drvinfo->driver, vmxnet3_driver_name, sizeof(drvinfo->driver)); 209 210 strlcpy(drvinfo->version, VMXNET3_DRIVER_VERSION_REPORT, 211 sizeof(drvinfo->version)); 212 213 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 214 sizeof(drvinfo->bus_info)); 215 } 216 217 218 static void 219 vmxnet3_get_strings(struct net_device *netdev, u32 stringset, u8 *buf) 220 { 221 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 222 if (stringset == ETH_SS_STATS) { 223 int i, j; 224 for (j = 0; j < adapter->num_tx_queues; j++) { 225 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) { 226 memcpy(buf, vmxnet3_tq_dev_stats[i].desc, 227 ETH_GSTRING_LEN); 228 buf += ETH_GSTRING_LEN; 229 } 230 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); 231 i++) { 232 memcpy(buf, vmxnet3_tq_driver_stats[i].desc, 233 ETH_GSTRING_LEN); 234 buf += ETH_GSTRING_LEN; 235 } 236 } 237 238 for (j = 0; j < adapter->num_rx_queues; j++) { 239 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) { 240 memcpy(buf, vmxnet3_rq_dev_stats[i].desc, 241 ETH_GSTRING_LEN); 242 buf += ETH_GSTRING_LEN; 243 } 244 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); 245 i++) { 246 memcpy(buf, vmxnet3_rq_driver_stats[i].desc, 247 ETH_GSTRING_LEN); 248 buf += ETH_GSTRING_LEN; 249 } 250 } 251 252 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) { 253 memcpy(buf, vmxnet3_global_stats[i].desc, 254 ETH_GSTRING_LEN); 255 buf += ETH_GSTRING_LEN; 256 } 257 } 258 } 259 260 netdev_features_t vmxnet3_fix_features(struct net_device *netdev, 261 netdev_features_t features) 262 { 263 /* If Rx checksum is disabled, then LRO should also be disabled */ 264 if (!(features & NETIF_F_RXCSUM)) 265 features &= ~NETIF_F_LRO; 266 267 return features; 268 } 269 270 static void vmxnet3_enable_encap_offloads(struct net_device *netdev) 271 { 272 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 273 274 if (VMXNET3_VERSION_GE_4(adapter)) { 275 netdev->hw_enc_features |= NETIF_F_SG | NETIF_F_RXCSUM | 276 NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX | 277 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 | 278 NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL | 279 NETIF_F_GSO_UDP_TUNNEL_CSUM; 280 } 281 } 282 283 static void vmxnet3_disable_encap_offloads(struct net_device *netdev) 284 { 285 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 286 287 if (VMXNET3_VERSION_GE_4(adapter)) { 288 netdev->hw_enc_features &= ~(NETIF_F_SG | NETIF_F_RXCSUM | 289 NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_CTAG_TX | 290 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_TSO | NETIF_F_TSO6 | 291 NETIF_F_LRO | NETIF_F_GSO_UDP_TUNNEL | 292 NETIF_F_GSO_UDP_TUNNEL_CSUM); 293 } 294 } 295 296 int vmxnet3_set_features(struct net_device *netdev, netdev_features_t features) 297 { 298 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 299 unsigned long flags; 300 netdev_features_t changed = features ^ netdev->features; 301 netdev_features_t tun_offload_mask = NETIF_F_GSO_UDP_TUNNEL | 302 NETIF_F_GSO_UDP_TUNNEL_CSUM; 303 u8 udp_tun_enabled = (netdev->features & tun_offload_mask) != 0; 304 305 if (changed & (NETIF_F_RXCSUM | NETIF_F_LRO | 306 NETIF_F_HW_VLAN_CTAG_RX | tun_offload_mask)) { 307 if (features & NETIF_F_RXCSUM) 308 adapter->shared->devRead.misc.uptFeatures |= 309 UPT1_F_RXCSUM; 310 else 311 adapter->shared->devRead.misc.uptFeatures &= 312 ~UPT1_F_RXCSUM; 313 314 /* update hardware LRO capability accordingly */ 315 if (features & NETIF_F_LRO) 316 adapter->shared->devRead.misc.uptFeatures |= 317 UPT1_F_LRO; 318 else 319 adapter->shared->devRead.misc.uptFeatures &= 320 ~UPT1_F_LRO; 321 322 if (features & NETIF_F_HW_VLAN_CTAG_RX) 323 adapter->shared->devRead.misc.uptFeatures |= 324 UPT1_F_RXVLAN; 325 else 326 adapter->shared->devRead.misc.uptFeatures &= 327 ~UPT1_F_RXVLAN; 328 329 if ((features & tun_offload_mask) != 0 && !udp_tun_enabled) { 330 vmxnet3_enable_encap_offloads(netdev); 331 adapter->shared->devRead.misc.uptFeatures |= 332 UPT1_F_RXINNEROFLD; 333 } else if ((features & tun_offload_mask) == 0 && 334 udp_tun_enabled) { 335 vmxnet3_disable_encap_offloads(netdev); 336 adapter->shared->devRead.misc.uptFeatures &= 337 ~UPT1_F_RXINNEROFLD; 338 } 339 340 spin_lock_irqsave(&adapter->cmd_lock, flags); 341 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 342 VMXNET3_CMD_UPDATE_FEATURE); 343 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 344 } 345 return 0; 346 } 347 348 static void 349 vmxnet3_get_ethtool_stats(struct net_device *netdev, 350 struct ethtool_stats *stats, u64 *buf) 351 { 352 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 353 unsigned long flags; 354 u8 *base; 355 int i; 356 int j = 0; 357 358 spin_lock_irqsave(&adapter->cmd_lock, flags); 359 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS); 360 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 361 362 /* this does assume each counter is 64-bit wide */ 363 for (j = 0; j < adapter->num_tx_queues; j++) { 364 base = (u8 *)&adapter->tqd_start[j].stats; 365 *buf++ = (u64)j; 366 for (i = 1; i < ARRAY_SIZE(vmxnet3_tq_dev_stats); i++) 367 *buf++ = *(u64 *)(base + 368 vmxnet3_tq_dev_stats[i].offset); 369 370 base = (u8 *)&adapter->tx_queue[j].stats; 371 for (i = 0; i < ARRAY_SIZE(vmxnet3_tq_driver_stats); i++) 372 *buf++ = *(u64 *)(base + 373 vmxnet3_tq_driver_stats[i].offset); 374 } 375 376 for (j = 0; j < adapter->num_rx_queues; j++) { 377 base = (u8 *)&adapter->rqd_start[j].stats; 378 *buf++ = (u64) j; 379 for (i = 1; i < ARRAY_SIZE(vmxnet3_rq_dev_stats); i++) 380 *buf++ = *(u64 *)(base + 381 vmxnet3_rq_dev_stats[i].offset); 382 383 base = (u8 *)&adapter->rx_queue[j].stats; 384 for (i = 0; i < ARRAY_SIZE(vmxnet3_rq_driver_stats); i++) 385 *buf++ = *(u64 *)(base + 386 vmxnet3_rq_driver_stats[i].offset); 387 } 388 389 base = (u8 *)adapter; 390 for (i = 0; i < ARRAY_SIZE(vmxnet3_global_stats); i++) 391 *buf++ = *(u64 *)(base + vmxnet3_global_stats[i].offset); 392 } 393 394 395 /* This is a version 2 of the vmxnet3 ethtool_regs which goes hand in hand with 396 * the version 2 of the vmxnet3 support for ethtool(8) --register-dump. 397 * Therefore, if any registers are added, removed or modified, then a version 398 * bump and a corresponding change in the vmxnet3 support for ethtool(8) 399 * --register-dump would be required. 400 */ 401 static void 402 vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 403 { 404 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 405 u32 *buf = p; 406 int i = 0, j = 0; 407 408 memset(p, 0, vmxnet3_get_regs_len(netdev)); 409 410 regs->version = 2; 411 412 /* Update vmxnet3_get_regs_len if we want to dump more registers */ 413 414 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_VRRS); 415 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_UVRS); 416 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAL); 417 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_DSAH); 418 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); 419 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACL); 420 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_MACH); 421 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ICR); 422 buf[j++] = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_ECR); 423 424 buf[j++] = adapter->intr.num_intrs; 425 for (i = 0; i < adapter->intr.num_intrs; i++) { 426 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_IMR 427 + i * VMXNET3_REG_ALIGN); 428 } 429 430 buf[j++] = adapter->num_tx_queues; 431 for (i = 0; i < adapter->num_tx_queues; i++) { 432 struct vmxnet3_tx_queue *tq = &adapter->tx_queue[i]; 433 434 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_TXPROD + 435 i * VMXNET3_REG_ALIGN); 436 437 buf[j++] = VMXNET3_GET_ADDR_LO(tq->tx_ring.basePA); 438 buf[j++] = VMXNET3_GET_ADDR_HI(tq->tx_ring.basePA); 439 buf[j++] = tq->tx_ring.size; 440 buf[j++] = tq->tx_ring.next2fill; 441 buf[j++] = tq->tx_ring.next2comp; 442 buf[j++] = tq->tx_ring.gen; 443 444 buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA); 445 buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA); 446 buf[j++] = tq->data_ring.size; 447 buf[j++] = tq->txdata_desc_size; 448 449 buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA); 450 buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA); 451 buf[j++] = tq->comp_ring.size; 452 buf[j++] = tq->comp_ring.next2proc; 453 buf[j++] = tq->comp_ring.gen; 454 455 buf[j++] = tq->stopped; 456 } 457 458 buf[j++] = adapter->num_rx_queues; 459 for (i = 0; i < adapter->num_rx_queues; i++) { 460 struct vmxnet3_rx_queue *rq = &adapter->rx_queue[i]; 461 462 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD + 463 i * VMXNET3_REG_ALIGN); 464 buf[j++] = VMXNET3_READ_BAR0_REG(adapter, VMXNET3_REG_RXPROD2 + 465 i * VMXNET3_REG_ALIGN); 466 467 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[0].basePA); 468 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[0].basePA); 469 buf[j++] = rq->rx_ring[0].size; 470 buf[j++] = rq->rx_ring[0].next2fill; 471 buf[j++] = rq->rx_ring[0].next2comp; 472 buf[j++] = rq->rx_ring[0].gen; 473 474 buf[j++] = VMXNET3_GET_ADDR_LO(rq->rx_ring[1].basePA); 475 buf[j++] = VMXNET3_GET_ADDR_HI(rq->rx_ring[1].basePA); 476 buf[j++] = rq->rx_ring[1].size; 477 buf[j++] = rq->rx_ring[1].next2fill; 478 buf[j++] = rq->rx_ring[1].next2comp; 479 buf[j++] = rq->rx_ring[1].gen; 480 481 buf[j++] = VMXNET3_GET_ADDR_LO(rq->data_ring.basePA); 482 buf[j++] = VMXNET3_GET_ADDR_HI(rq->data_ring.basePA); 483 buf[j++] = rq->rx_ring[0].size; 484 buf[j++] = rq->data_ring.desc_size; 485 486 buf[j++] = VMXNET3_GET_ADDR_LO(rq->comp_ring.basePA); 487 buf[j++] = VMXNET3_GET_ADDR_HI(rq->comp_ring.basePA); 488 buf[j++] = rq->comp_ring.size; 489 buf[j++] = rq->comp_ring.next2proc; 490 buf[j++] = rq->comp_ring.gen; 491 } 492 } 493 494 495 static void 496 vmxnet3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 497 { 498 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 499 500 wol->supported = WAKE_UCAST | WAKE_ARP | WAKE_MAGIC; 501 wol->wolopts = adapter->wol; 502 } 503 504 505 static int 506 vmxnet3_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 507 { 508 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 509 510 if (wol->wolopts & (WAKE_PHY | WAKE_MCAST | WAKE_BCAST | 511 WAKE_MAGICSECURE)) { 512 return -EOPNOTSUPP; 513 } 514 515 adapter->wol = wol->wolopts; 516 517 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 518 519 return 0; 520 } 521 522 523 static int 524 vmxnet3_get_link_ksettings(struct net_device *netdev, 525 struct ethtool_link_ksettings *ecmd) 526 { 527 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 528 529 ethtool_link_ksettings_zero_link_mode(ecmd, supported); 530 ethtool_link_ksettings_add_link_mode(ecmd, supported, 10000baseT_Full); 531 ethtool_link_ksettings_add_link_mode(ecmd, supported, 1000baseT_Full); 532 ethtool_link_ksettings_add_link_mode(ecmd, supported, TP); 533 ethtool_link_ksettings_zero_link_mode(ecmd, advertising); 534 ethtool_link_ksettings_add_link_mode(ecmd, advertising, TP); 535 ecmd->base.port = PORT_TP; 536 537 if (adapter->link_speed) { 538 ecmd->base.speed = adapter->link_speed; 539 ecmd->base.duplex = DUPLEX_FULL; 540 } else { 541 ecmd->base.speed = SPEED_UNKNOWN; 542 ecmd->base.duplex = DUPLEX_UNKNOWN; 543 } 544 return 0; 545 } 546 547 548 static void 549 vmxnet3_get_ringparam(struct net_device *netdev, 550 struct ethtool_ringparam *param) 551 { 552 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 553 554 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; 555 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; 556 param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ? 557 VMXNET3_RXDATA_DESC_MAX_SIZE : 0; 558 param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE; 559 560 param->rx_pending = adapter->rx_ring_size; 561 param->tx_pending = adapter->tx_ring_size; 562 param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ? 563 adapter->rxdata_desc_size : 0; 564 param->rx_jumbo_pending = adapter->rx_ring2_size; 565 } 566 567 568 static int 569 vmxnet3_set_ringparam(struct net_device *netdev, 570 struct ethtool_ringparam *param) 571 { 572 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 573 u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size; 574 u16 new_rxdata_desc_size; 575 u32 sz; 576 int err = 0; 577 578 if (param->tx_pending == 0 || param->tx_pending > 579 VMXNET3_TX_RING_MAX_SIZE) 580 return -EINVAL; 581 582 if (param->rx_pending == 0 || param->rx_pending > 583 VMXNET3_RX_RING_MAX_SIZE) 584 return -EINVAL; 585 586 if (param->rx_jumbo_pending == 0 || 587 param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE) 588 return -EINVAL; 589 590 /* if adapter not yet initialized, do nothing */ 591 if (adapter->rx_buf_per_pkt == 0) { 592 netdev_err(netdev, "adapter not completely initialized, " 593 "ring size cannot be changed yet\n"); 594 return -EOPNOTSUPP; 595 } 596 597 if (VMXNET3_VERSION_GE_3(adapter)) { 598 if (param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE) 599 return -EINVAL; 600 } else if (param->rx_mini_pending != 0) { 601 return -EINVAL; 602 } 603 604 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ 605 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & 606 ~VMXNET3_RING_SIZE_MASK; 607 new_tx_ring_size = min_t(u32, new_tx_ring_size, 608 VMXNET3_TX_RING_MAX_SIZE); 609 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % 610 VMXNET3_RING_SIZE_ALIGN) != 0) 611 return -EINVAL; 612 613 /* ring0 has to be a multiple of 614 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN 615 */ 616 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; 617 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; 618 new_rx_ring_size = min_t(u32, new_rx_ring_size, 619 VMXNET3_RX_RING_MAX_SIZE / sz * sz); 620 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % 621 sz) != 0) 622 return -EINVAL; 623 624 /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */ 625 new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) & 626 ~VMXNET3_RING_SIZE_MASK; 627 new_rx_ring2_size = min_t(u32, new_rx_ring2_size, 628 VMXNET3_RX_RING2_MAX_SIZE); 629 630 /* rx data ring buffer size has to be a multiple of 631 * VMXNET3_RXDATA_DESC_SIZE_ALIGN 632 */ 633 new_rxdata_desc_size = 634 (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) & 635 ~VMXNET3_RXDATA_DESC_SIZE_MASK; 636 new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size, 637 VMXNET3_RXDATA_DESC_MAX_SIZE); 638 639 if (new_tx_ring_size == adapter->tx_ring_size && 640 new_rx_ring_size == adapter->rx_ring_size && 641 new_rx_ring2_size == adapter->rx_ring2_size && 642 new_rxdata_desc_size == adapter->rxdata_desc_size) { 643 return 0; 644 } 645 646 /* 647 * Reset_work may be in the middle of resetting the device, wait for its 648 * completion. 649 */ 650 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) 651 usleep_range(1000, 2000); 652 653 if (netif_running(netdev)) { 654 vmxnet3_quiesce_dev(adapter); 655 vmxnet3_reset_dev(adapter); 656 657 /* recreate the rx queue and the tx queue based on the 658 * new sizes */ 659 vmxnet3_tq_destroy_all(adapter); 660 vmxnet3_rq_destroy_all(adapter); 661 662 err = vmxnet3_create_queues(adapter, new_tx_ring_size, 663 new_rx_ring_size, new_rx_ring2_size, 664 adapter->txdata_desc_size, 665 new_rxdata_desc_size); 666 if (err) { 667 /* failed, most likely because of OOM, try default 668 * size */ 669 netdev_err(netdev, "failed to apply new sizes, " 670 "try the default ones\n"); 671 new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; 672 new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE; 673 new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; 674 new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ? 675 VMXNET3_DEF_RXDATA_DESC_SIZE : 0; 676 677 err = vmxnet3_create_queues(adapter, 678 new_tx_ring_size, 679 new_rx_ring_size, 680 new_rx_ring2_size, 681 adapter->txdata_desc_size, 682 new_rxdata_desc_size); 683 if (err) { 684 netdev_err(netdev, "failed to create queues " 685 "with default sizes. Closing it\n"); 686 goto out; 687 } 688 } 689 690 err = vmxnet3_activate_dev(adapter); 691 if (err) 692 netdev_err(netdev, "failed to re-activate, error %d." 693 " Closing it\n", err); 694 } 695 adapter->tx_ring_size = new_tx_ring_size; 696 adapter->rx_ring_size = new_rx_ring_size; 697 adapter->rx_ring2_size = new_rx_ring2_size; 698 adapter->rxdata_desc_size = new_rxdata_desc_size; 699 700 out: 701 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); 702 if (err) 703 vmxnet3_force_close(adapter); 704 705 return err; 706 } 707 708 static int 709 vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter, 710 struct ethtool_rxnfc *info) 711 { 712 enum Vmxnet3_RSSField rss_fields; 713 714 if (netif_running(adapter->netdev)) { 715 unsigned long flags; 716 717 spin_lock_irqsave(&adapter->cmd_lock, flags); 718 719 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 720 VMXNET3_CMD_GET_RSS_FIELDS); 721 rss_fields = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); 722 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 723 } else { 724 rss_fields = adapter->rss_fields; 725 } 726 727 info->data = 0; 728 729 /* Report default options for RSS on vmxnet3 */ 730 switch (info->flow_type) { 731 case TCP_V4_FLOW: 732 case TCP_V6_FLOW: 733 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3 | 734 RXH_IP_SRC | RXH_IP_DST; 735 break; 736 case UDP_V4_FLOW: 737 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP4) 738 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 739 info->data |= RXH_IP_SRC | RXH_IP_DST; 740 break; 741 case AH_ESP_V4_FLOW: 742 case AH_V4_FLOW: 743 case ESP_V4_FLOW: 744 if (rss_fields & VMXNET3_RSS_FIELDS_ESPIP4) 745 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 746 /* fallthrough */ 747 case SCTP_V4_FLOW: 748 case IPV4_FLOW: 749 info->data |= RXH_IP_SRC | RXH_IP_DST; 750 break; 751 case UDP_V6_FLOW: 752 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP6) 753 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 754 info->data |= RXH_IP_SRC | RXH_IP_DST; 755 break; 756 case AH_ESP_V6_FLOW: 757 case AH_V6_FLOW: 758 case ESP_V6_FLOW: 759 case SCTP_V6_FLOW: 760 case IPV6_FLOW: 761 info->data |= RXH_IP_SRC | RXH_IP_DST; 762 break; 763 default: 764 return -EINVAL; 765 } 766 767 return 0; 768 } 769 770 static int 771 vmxnet3_set_rss_hash_opt(struct net_device *netdev, 772 struct vmxnet3_adapter *adapter, 773 struct ethtool_rxnfc *nfc) 774 { 775 enum Vmxnet3_RSSField rss_fields = adapter->rss_fields; 776 777 /* RSS does not support anything other than hashing 778 * to queues on src and dst IPs and ports 779 */ 780 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 781 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 782 return -EINVAL; 783 784 switch (nfc->flow_type) { 785 case TCP_V4_FLOW: 786 case TCP_V6_FLOW: 787 if (!(nfc->data & RXH_IP_SRC) || 788 !(nfc->data & RXH_IP_DST) || 789 !(nfc->data & RXH_L4_B_0_1) || 790 !(nfc->data & RXH_L4_B_2_3)) 791 return -EINVAL; 792 break; 793 case UDP_V4_FLOW: 794 if (!(nfc->data & RXH_IP_SRC) || 795 !(nfc->data & RXH_IP_DST)) 796 return -EINVAL; 797 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 798 case 0: 799 rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP4; 800 break; 801 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 802 rss_fields |= VMXNET3_RSS_FIELDS_UDPIP4; 803 break; 804 default: 805 return -EINVAL; 806 } 807 break; 808 case UDP_V6_FLOW: 809 if (!(nfc->data & RXH_IP_SRC) || 810 !(nfc->data & RXH_IP_DST)) 811 return -EINVAL; 812 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 813 case 0: 814 rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP6; 815 break; 816 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 817 rss_fields |= VMXNET3_RSS_FIELDS_UDPIP6; 818 break; 819 default: 820 return -EINVAL; 821 } 822 break; 823 case ESP_V4_FLOW: 824 case AH_V4_FLOW: 825 case AH_ESP_V4_FLOW: 826 if (!(nfc->data & RXH_IP_SRC) || 827 !(nfc->data & RXH_IP_DST)) 828 return -EINVAL; 829 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 830 case 0: 831 rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP4; 832 break; 833 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 834 rss_fields |= VMXNET3_RSS_FIELDS_ESPIP4; 835 break; 836 default: 837 return -EINVAL; 838 } 839 break; 840 case ESP_V6_FLOW: 841 case AH_V6_FLOW: 842 case AH_ESP_V6_FLOW: 843 case SCTP_V4_FLOW: 844 case SCTP_V6_FLOW: 845 if (!(nfc->data & RXH_IP_SRC) || 846 !(nfc->data & RXH_IP_DST) || 847 (nfc->data & RXH_L4_B_0_1) || 848 (nfc->data & RXH_L4_B_2_3)) 849 return -EINVAL; 850 break; 851 default: 852 return -EINVAL; 853 } 854 855 /* if we changed something we need to update flags */ 856 if (rss_fields != adapter->rss_fields) { 857 adapter->default_rss_fields = false; 858 if (netif_running(netdev)) { 859 struct Vmxnet3_DriverShared *shared = adapter->shared; 860 union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; 861 unsigned long flags; 862 863 spin_lock_irqsave(&adapter->cmd_lock, flags); 864 cmdInfo->setRssFields = rss_fields; 865 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 866 VMXNET3_CMD_SET_RSS_FIELDS); 867 868 /* Not all requested RSS may get applied, so get and 869 * cache what was actually applied. 870 */ 871 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 872 VMXNET3_CMD_GET_RSS_FIELDS); 873 adapter->rss_fields = 874 VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); 875 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 876 } else { 877 /* When the device is activated, we will try to apply 878 * these rules and cache the applied value later. 879 */ 880 adapter->rss_fields = rss_fields; 881 } 882 } 883 return 0; 884 } 885 886 static int 887 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 888 u32 *rules) 889 { 890 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 891 int err = 0; 892 893 switch (info->cmd) { 894 case ETHTOOL_GRXRINGS: 895 info->data = adapter->num_rx_queues; 896 break; 897 case ETHTOOL_GRXFH: 898 if (!VMXNET3_VERSION_GE_4(adapter)) { 899 err = -EOPNOTSUPP; 900 break; 901 } 902 #ifdef VMXNET3_RSS 903 if (!adapter->rss) { 904 err = -EOPNOTSUPP; 905 break; 906 } 907 #endif 908 err = vmxnet3_get_rss_hash_opts(adapter, info); 909 break; 910 default: 911 err = -EOPNOTSUPP; 912 break; 913 } 914 915 return err; 916 } 917 918 static int 919 vmxnet3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info) 920 { 921 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 922 int err = 0; 923 924 if (!VMXNET3_VERSION_GE_4(adapter)) { 925 err = -EOPNOTSUPP; 926 goto done; 927 } 928 #ifdef VMXNET3_RSS 929 if (!adapter->rss) { 930 err = -EOPNOTSUPP; 931 goto done; 932 } 933 #endif 934 935 switch (info->cmd) { 936 case ETHTOOL_SRXFH: 937 err = vmxnet3_set_rss_hash_opt(netdev, adapter, info); 938 break; 939 default: 940 err = -EOPNOTSUPP; 941 break; 942 } 943 944 done: 945 return err; 946 } 947 948 #ifdef VMXNET3_RSS 949 static u32 950 vmxnet3_get_rss_indir_size(struct net_device *netdev) 951 { 952 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 953 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 954 955 return rssConf->indTableSize; 956 } 957 958 static int 959 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc) 960 { 961 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 962 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 963 unsigned int n = rssConf->indTableSize; 964 965 if (hfunc) 966 *hfunc = ETH_RSS_HASH_TOP; 967 if (!p) 968 return 0; 969 if (n > UPT1_RSS_MAX_IND_TABLE_SIZE) 970 return 0; 971 while (n--) 972 p[n] = rssConf->indTable[n]; 973 return 0; 974 975 } 976 977 static int 978 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key, 979 const u8 hfunc) 980 { 981 unsigned int i; 982 unsigned long flags; 983 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 984 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 985 986 /* We do not allow change in unsupported parameters */ 987 if (key || 988 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 989 return -EOPNOTSUPP; 990 if (!p) 991 return 0; 992 for (i = 0; i < rssConf->indTableSize; i++) 993 rssConf->indTable[i] = p[i]; 994 995 spin_lock_irqsave(&adapter->cmd_lock, flags); 996 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 997 VMXNET3_CMD_UPDATE_RSSIDT); 998 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 999 1000 return 0; 1001 1002 } 1003 #endif 1004 1005 static int 1006 vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 1007 { 1008 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 1009 1010 if (!VMXNET3_VERSION_GE_3(adapter)) 1011 return -EOPNOTSUPP; 1012 1013 switch (adapter->coal_conf->coalMode) { 1014 case VMXNET3_COALESCE_DISABLED: 1015 /* struct ethtool_coalesce is already initialized to 0 */ 1016 break; 1017 case VMXNET3_COALESCE_ADAPT: 1018 ec->use_adaptive_rx_coalesce = true; 1019 break; 1020 case VMXNET3_COALESCE_STATIC: 1021 ec->tx_max_coalesced_frames = 1022 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth; 1023 ec->rx_max_coalesced_frames = 1024 adapter->coal_conf->coalPara.coalStatic.rx_depth; 1025 break; 1026 case VMXNET3_COALESCE_RBC: { 1027 u32 rbc_rate; 1028 1029 rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate; 1030 ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate); 1031 } 1032 break; 1033 default: 1034 return -EOPNOTSUPP; 1035 } 1036 1037 return 0; 1038 } 1039 1040 static int 1041 vmxnet3_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 1042 { 1043 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 1044 struct Vmxnet3_DriverShared *shared = adapter->shared; 1045 union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; 1046 unsigned long flags; 1047 1048 if (!VMXNET3_VERSION_GE_3(adapter)) 1049 return -EOPNOTSUPP; 1050 1051 if ((ec->rx_coalesce_usecs == 0) && 1052 (ec->use_adaptive_rx_coalesce == 0) && 1053 (ec->tx_max_coalesced_frames == 0) && 1054 (ec->rx_max_coalesced_frames == 0)) { 1055 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1056 adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED; 1057 goto done; 1058 } 1059 1060 if (ec->rx_coalesce_usecs != 0) { 1061 u32 rbc_rate; 1062 1063 if ((ec->use_adaptive_rx_coalesce != 0) || 1064 (ec->tx_max_coalesced_frames != 0) || 1065 (ec->rx_max_coalesced_frames != 0)) { 1066 return -EINVAL; 1067 } 1068 1069 rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs); 1070 if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE || 1071 rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) { 1072 return -EINVAL; 1073 } 1074 1075 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1076 adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC; 1077 adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate; 1078 goto done; 1079 } 1080 1081 if (ec->use_adaptive_rx_coalesce != 0) { 1082 if ((ec->rx_coalesce_usecs != 0) || 1083 (ec->tx_max_coalesced_frames != 0) || 1084 (ec->rx_max_coalesced_frames != 0)) { 1085 return -EINVAL; 1086 } 1087 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1088 adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT; 1089 goto done; 1090 } 1091 1092 if ((ec->tx_max_coalesced_frames != 0) || 1093 (ec->rx_max_coalesced_frames != 0)) { 1094 if ((ec->rx_coalesce_usecs != 0) || 1095 (ec->use_adaptive_rx_coalesce != 0)) { 1096 return -EINVAL; 1097 } 1098 1099 if ((ec->tx_max_coalesced_frames > 1100 VMXNET3_COAL_STATIC_MAX_DEPTH) || 1101 (ec->rx_max_coalesced_frames > 1102 VMXNET3_COAL_STATIC_MAX_DEPTH)) { 1103 return -EINVAL; 1104 } 1105 1106 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1107 adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC; 1108 1109 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth = 1110 (ec->tx_max_coalesced_frames ? 1111 ec->tx_max_coalesced_frames : 1112 VMXNET3_COAL_STATIC_DEFAULT_DEPTH); 1113 1114 adapter->coal_conf->coalPara.coalStatic.rx_depth = 1115 (ec->rx_max_coalesced_frames ? 1116 ec->rx_max_coalesced_frames : 1117 VMXNET3_COAL_STATIC_DEFAULT_DEPTH); 1118 1119 adapter->coal_conf->coalPara.coalStatic.tx_depth = 1120 VMXNET3_COAL_STATIC_DEFAULT_DEPTH; 1121 goto done; 1122 } 1123 1124 done: 1125 adapter->default_coal_mode = false; 1126 if (netif_running(netdev)) { 1127 spin_lock_irqsave(&adapter->cmd_lock, flags); 1128 cmdInfo->varConf.confVer = 1; 1129 cmdInfo->varConf.confLen = 1130 cpu_to_le32(sizeof(*adapter->coal_conf)); 1131 cmdInfo->varConf.confPA = cpu_to_le64(adapter->coal_conf_pa); 1132 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 1133 VMXNET3_CMD_SET_COALESCE); 1134 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 1135 } 1136 1137 return 0; 1138 } 1139 1140 static const struct ethtool_ops vmxnet3_ethtool_ops = { 1141 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 1142 ETHTOOL_COALESCE_MAX_FRAMES | 1143 ETHTOOL_COALESCE_USE_ADAPTIVE_RX, 1144 .get_drvinfo = vmxnet3_get_drvinfo, 1145 .get_regs_len = vmxnet3_get_regs_len, 1146 .get_regs = vmxnet3_get_regs, 1147 .get_wol = vmxnet3_get_wol, 1148 .set_wol = vmxnet3_set_wol, 1149 .get_link = ethtool_op_get_link, 1150 .get_coalesce = vmxnet3_get_coalesce, 1151 .set_coalesce = vmxnet3_set_coalesce, 1152 .get_strings = vmxnet3_get_strings, 1153 .get_sset_count = vmxnet3_get_sset_count, 1154 .get_ethtool_stats = vmxnet3_get_ethtool_stats, 1155 .get_ringparam = vmxnet3_get_ringparam, 1156 .set_ringparam = vmxnet3_set_ringparam, 1157 .get_rxnfc = vmxnet3_get_rxnfc, 1158 .set_rxnfc = vmxnet3_set_rxnfc, 1159 #ifdef VMXNET3_RSS 1160 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, 1161 .get_rxfh = vmxnet3_get_rss, 1162 .set_rxfh = vmxnet3_set_rss, 1163 #endif 1164 .get_link_ksettings = vmxnet3_get_link_ksettings, 1165 }; 1166 1167 void vmxnet3_set_ethtool_ops(struct net_device *netdev) 1168 { 1169 netdev->ethtool_ops = &vmxnet3_ethtool_ops; 1170 } 1171