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 } 577 578 579 static void 580 vmxnet3_get_ringparam(struct net_device *netdev, 581 struct ethtool_ringparam *param) 582 { 583 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 584 585 param->rx_max_pending = VMXNET3_RX_RING_MAX_SIZE; 586 param->tx_max_pending = VMXNET3_TX_RING_MAX_SIZE; 587 param->rx_mini_max_pending = VMXNET3_VERSION_GE_3(adapter) ? 588 VMXNET3_RXDATA_DESC_MAX_SIZE : 0; 589 param->rx_jumbo_max_pending = VMXNET3_RX_RING2_MAX_SIZE; 590 591 param->rx_pending = adapter->rx_ring_size; 592 param->tx_pending = adapter->tx_ring_size; 593 param->rx_mini_pending = VMXNET3_VERSION_GE_3(adapter) ? 594 adapter->rxdata_desc_size : 0; 595 param->rx_jumbo_pending = adapter->rx_ring2_size; 596 } 597 598 599 static int 600 vmxnet3_set_ringparam(struct net_device *netdev, 601 struct ethtool_ringparam *param) 602 { 603 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 604 u32 new_tx_ring_size, new_rx_ring_size, new_rx_ring2_size; 605 u16 new_rxdata_desc_size; 606 u32 sz; 607 int err = 0; 608 609 if (param->tx_pending == 0 || param->tx_pending > 610 VMXNET3_TX_RING_MAX_SIZE) 611 return -EINVAL; 612 613 if (param->rx_pending == 0 || param->rx_pending > 614 VMXNET3_RX_RING_MAX_SIZE) 615 return -EINVAL; 616 617 if (param->rx_jumbo_pending == 0 || 618 param->rx_jumbo_pending > VMXNET3_RX_RING2_MAX_SIZE) 619 return -EINVAL; 620 621 /* if adapter not yet initialized, do nothing */ 622 if (adapter->rx_buf_per_pkt == 0) { 623 netdev_err(netdev, "adapter not completely initialized, " 624 "ring size cannot be changed yet\n"); 625 return -EOPNOTSUPP; 626 } 627 628 if (VMXNET3_VERSION_GE_3(adapter)) { 629 if (param->rx_mini_pending > VMXNET3_RXDATA_DESC_MAX_SIZE) 630 return -EINVAL; 631 } else if (param->rx_mini_pending != 0) { 632 return -EINVAL; 633 } 634 635 /* round it up to a multiple of VMXNET3_RING_SIZE_ALIGN */ 636 new_tx_ring_size = (param->tx_pending + VMXNET3_RING_SIZE_MASK) & 637 ~VMXNET3_RING_SIZE_MASK; 638 new_tx_ring_size = min_t(u32, new_tx_ring_size, 639 VMXNET3_TX_RING_MAX_SIZE); 640 if (new_tx_ring_size > VMXNET3_TX_RING_MAX_SIZE || (new_tx_ring_size % 641 VMXNET3_RING_SIZE_ALIGN) != 0) 642 return -EINVAL; 643 644 /* ring0 has to be a multiple of 645 * rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN 646 */ 647 sz = adapter->rx_buf_per_pkt * VMXNET3_RING_SIZE_ALIGN; 648 new_rx_ring_size = (param->rx_pending + sz - 1) / sz * sz; 649 new_rx_ring_size = min_t(u32, new_rx_ring_size, 650 VMXNET3_RX_RING_MAX_SIZE / sz * sz); 651 if (new_rx_ring_size > VMXNET3_RX_RING_MAX_SIZE || (new_rx_ring_size % 652 sz) != 0) 653 return -EINVAL; 654 655 /* ring2 has to be a multiple of VMXNET3_RING_SIZE_ALIGN */ 656 new_rx_ring2_size = (param->rx_jumbo_pending + VMXNET3_RING_SIZE_MASK) & 657 ~VMXNET3_RING_SIZE_MASK; 658 new_rx_ring2_size = min_t(u32, new_rx_ring2_size, 659 VMXNET3_RX_RING2_MAX_SIZE); 660 661 /* rx data ring buffer size has to be a multiple of 662 * VMXNET3_RXDATA_DESC_SIZE_ALIGN 663 */ 664 new_rxdata_desc_size = 665 (param->rx_mini_pending + VMXNET3_RXDATA_DESC_SIZE_MASK) & 666 ~VMXNET3_RXDATA_DESC_SIZE_MASK; 667 new_rxdata_desc_size = min_t(u16, new_rxdata_desc_size, 668 VMXNET3_RXDATA_DESC_MAX_SIZE); 669 670 if (new_tx_ring_size == adapter->tx_ring_size && 671 new_rx_ring_size == adapter->rx_ring_size && 672 new_rx_ring2_size == adapter->rx_ring2_size && 673 new_rxdata_desc_size == adapter->rxdata_desc_size) { 674 return 0; 675 } 676 677 /* 678 * Reset_work may be in the middle of resetting the device, wait for its 679 * completion. 680 */ 681 while (test_and_set_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state)) 682 usleep_range(1000, 2000); 683 684 if (netif_running(netdev)) { 685 vmxnet3_quiesce_dev(adapter); 686 vmxnet3_reset_dev(adapter); 687 688 /* recreate the rx queue and the tx queue based on the 689 * new sizes */ 690 vmxnet3_tq_destroy_all(adapter); 691 vmxnet3_rq_destroy_all(adapter); 692 693 err = vmxnet3_create_queues(adapter, new_tx_ring_size, 694 new_rx_ring_size, new_rx_ring2_size, 695 adapter->txdata_desc_size, 696 new_rxdata_desc_size); 697 if (err) { 698 /* failed, most likely because of OOM, try default 699 * size */ 700 netdev_err(netdev, "failed to apply new sizes, " 701 "try the default ones\n"); 702 new_rx_ring_size = VMXNET3_DEF_RX_RING_SIZE; 703 new_rx_ring2_size = VMXNET3_DEF_RX_RING2_SIZE; 704 new_tx_ring_size = VMXNET3_DEF_TX_RING_SIZE; 705 new_rxdata_desc_size = VMXNET3_VERSION_GE_3(adapter) ? 706 VMXNET3_DEF_RXDATA_DESC_SIZE : 0; 707 708 err = vmxnet3_create_queues(adapter, 709 new_tx_ring_size, 710 new_rx_ring_size, 711 new_rx_ring2_size, 712 adapter->txdata_desc_size, 713 new_rxdata_desc_size); 714 if (err) { 715 netdev_err(netdev, "failed to create queues " 716 "with default sizes. Closing it\n"); 717 goto out; 718 } 719 } 720 721 err = vmxnet3_activate_dev(adapter); 722 if (err) 723 netdev_err(netdev, "failed to re-activate, error %d." 724 " Closing it\n", err); 725 } 726 adapter->tx_ring_size = new_tx_ring_size; 727 adapter->rx_ring_size = new_rx_ring_size; 728 adapter->rx_ring2_size = new_rx_ring2_size; 729 adapter->rxdata_desc_size = new_rxdata_desc_size; 730 731 out: 732 clear_bit(VMXNET3_STATE_BIT_RESETTING, &adapter->state); 733 if (err) 734 vmxnet3_force_close(adapter); 735 736 return err; 737 } 738 739 static int 740 vmxnet3_get_rss_hash_opts(struct vmxnet3_adapter *adapter, 741 struct ethtool_rxnfc *info) 742 { 743 enum Vmxnet3_RSSField rss_fields; 744 745 if (netif_running(adapter->netdev)) { 746 unsigned long flags; 747 748 spin_lock_irqsave(&adapter->cmd_lock, flags); 749 750 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 751 VMXNET3_CMD_GET_RSS_FIELDS); 752 rss_fields = VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); 753 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 754 } else { 755 rss_fields = adapter->rss_fields; 756 } 757 758 info->data = 0; 759 760 /* Report default options for RSS on vmxnet3 */ 761 switch (info->flow_type) { 762 case TCP_V4_FLOW: 763 case TCP_V6_FLOW: 764 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3 | 765 RXH_IP_SRC | RXH_IP_DST; 766 break; 767 case UDP_V4_FLOW: 768 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP4) 769 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 770 info->data |= RXH_IP_SRC | RXH_IP_DST; 771 break; 772 case AH_ESP_V4_FLOW: 773 case AH_V4_FLOW: 774 case ESP_V4_FLOW: 775 if (rss_fields & VMXNET3_RSS_FIELDS_ESPIP4) 776 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 777 fallthrough; 778 case SCTP_V4_FLOW: 779 case IPV4_FLOW: 780 info->data |= RXH_IP_SRC | RXH_IP_DST; 781 break; 782 case UDP_V6_FLOW: 783 if (rss_fields & VMXNET3_RSS_FIELDS_UDPIP6) 784 info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 785 info->data |= RXH_IP_SRC | RXH_IP_DST; 786 break; 787 case AH_ESP_V6_FLOW: 788 case AH_V6_FLOW: 789 case ESP_V6_FLOW: 790 case SCTP_V6_FLOW: 791 case IPV6_FLOW: 792 info->data |= RXH_IP_SRC | RXH_IP_DST; 793 break; 794 default: 795 return -EINVAL; 796 } 797 798 return 0; 799 } 800 801 static int 802 vmxnet3_set_rss_hash_opt(struct net_device *netdev, 803 struct vmxnet3_adapter *adapter, 804 struct ethtool_rxnfc *nfc) 805 { 806 enum Vmxnet3_RSSField rss_fields = adapter->rss_fields; 807 808 /* RSS does not support anything other than hashing 809 * to queues on src and dst IPs and ports 810 */ 811 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 812 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 813 return -EINVAL; 814 815 switch (nfc->flow_type) { 816 case TCP_V4_FLOW: 817 case TCP_V6_FLOW: 818 if (!(nfc->data & RXH_IP_SRC) || 819 !(nfc->data & RXH_IP_DST) || 820 !(nfc->data & RXH_L4_B_0_1) || 821 !(nfc->data & RXH_L4_B_2_3)) 822 return -EINVAL; 823 break; 824 case UDP_V4_FLOW: 825 if (!(nfc->data & RXH_IP_SRC) || 826 !(nfc->data & RXH_IP_DST)) 827 return -EINVAL; 828 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 829 case 0: 830 rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP4; 831 break; 832 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 833 rss_fields |= VMXNET3_RSS_FIELDS_UDPIP4; 834 break; 835 default: 836 return -EINVAL; 837 } 838 break; 839 case UDP_V6_FLOW: 840 if (!(nfc->data & RXH_IP_SRC) || 841 !(nfc->data & RXH_IP_DST)) 842 return -EINVAL; 843 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 844 case 0: 845 rss_fields &= ~VMXNET3_RSS_FIELDS_UDPIP6; 846 break; 847 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 848 rss_fields |= VMXNET3_RSS_FIELDS_UDPIP6; 849 break; 850 default: 851 return -EINVAL; 852 } 853 break; 854 case ESP_V4_FLOW: 855 case AH_V4_FLOW: 856 case AH_ESP_V4_FLOW: 857 if (!(nfc->data & RXH_IP_SRC) || 858 !(nfc->data & RXH_IP_DST)) 859 return -EINVAL; 860 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 861 case 0: 862 rss_fields &= ~VMXNET3_RSS_FIELDS_ESPIP4; 863 break; 864 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 865 rss_fields |= VMXNET3_RSS_FIELDS_ESPIP4; 866 break; 867 default: 868 return -EINVAL; 869 } 870 break; 871 case ESP_V6_FLOW: 872 case AH_V6_FLOW: 873 case AH_ESP_V6_FLOW: 874 case SCTP_V4_FLOW: 875 case SCTP_V6_FLOW: 876 if (!(nfc->data & RXH_IP_SRC) || 877 !(nfc->data & RXH_IP_DST) || 878 (nfc->data & RXH_L4_B_0_1) || 879 (nfc->data & RXH_L4_B_2_3)) 880 return -EINVAL; 881 break; 882 default: 883 return -EINVAL; 884 } 885 886 /* if we changed something we need to update flags */ 887 if (rss_fields != adapter->rss_fields) { 888 adapter->default_rss_fields = false; 889 if (netif_running(netdev)) { 890 struct Vmxnet3_DriverShared *shared = adapter->shared; 891 union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; 892 unsigned long flags; 893 894 spin_lock_irqsave(&adapter->cmd_lock, flags); 895 cmdInfo->setRssFields = rss_fields; 896 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 897 VMXNET3_CMD_SET_RSS_FIELDS); 898 899 /* Not all requested RSS may get applied, so get and 900 * cache what was actually applied. 901 */ 902 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 903 VMXNET3_CMD_GET_RSS_FIELDS); 904 adapter->rss_fields = 905 VMXNET3_READ_BAR1_REG(adapter, VMXNET3_REG_CMD); 906 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 907 } else { 908 /* When the device is activated, we will try to apply 909 * these rules and cache the applied value later. 910 */ 911 adapter->rss_fields = rss_fields; 912 } 913 } 914 return 0; 915 } 916 917 static int 918 vmxnet3_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info, 919 u32 *rules) 920 { 921 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 922 int err = 0; 923 924 switch (info->cmd) { 925 case ETHTOOL_GRXRINGS: 926 info->data = adapter->num_rx_queues; 927 break; 928 case ETHTOOL_GRXFH: 929 if (!VMXNET3_VERSION_GE_4(adapter)) { 930 err = -EOPNOTSUPP; 931 break; 932 } 933 #ifdef VMXNET3_RSS 934 if (!adapter->rss) { 935 err = -EOPNOTSUPP; 936 break; 937 } 938 #endif 939 err = vmxnet3_get_rss_hash_opts(adapter, info); 940 break; 941 default: 942 err = -EOPNOTSUPP; 943 break; 944 } 945 946 return err; 947 } 948 949 static int 950 vmxnet3_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *info) 951 { 952 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 953 int err = 0; 954 955 if (!VMXNET3_VERSION_GE_4(adapter)) { 956 err = -EOPNOTSUPP; 957 goto done; 958 } 959 #ifdef VMXNET3_RSS 960 if (!adapter->rss) { 961 err = -EOPNOTSUPP; 962 goto done; 963 } 964 #endif 965 966 switch (info->cmd) { 967 case ETHTOOL_SRXFH: 968 err = vmxnet3_set_rss_hash_opt(netdev, adapter, info); 969 break; 970 default: 971 err = -EOPNOTSUPP; 972 break; 973 } 974 975 done: 976 return err; 977 } 978 979 #ifdef VMXNET3_RSS 980 static u32 981 vmxnet3_get_rss_indir_size(struct net_device *netdev) 982 { 983 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 984 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 985 986 return rssConf->indTableSize; 987 } 988 989 static int 990 vmxnet3_get_rss(struct net_device *netdev, u32 *p, u8 *key, u8 *hfunc) 991 { 992 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 993 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 994 unsigned int n = rssConf->indTableSize; 995 996 if (hfunc) 997 *hfunc = ETH_RSS_HASH_TOP; 998 if (!p) 999 return 0; 1000 if (n > UPT1_RSS_MAX_IND_TABLE_SIZE) 1001 return 0; 1002 while (n--) 1003 p[n] = rssConf->indTable[n]; 1004 return 0; 1005 1006 } 1007 1008 static int 1009 vmxnet3_set_rss(struct net_device *netdev, const u32 *p, const u8 *key, 1010 const u8 hfunc) 1011 { 1012 unsigned int i; 1013 unsigned long flags; 1014 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 1015 struct UPT1_RSSConf *rssConf = adapter->rss_conf; 1016 1017 /* We do not allow change in unsupported parameters */ 1018 if (key || 1019 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1020 return -EOPNOTSUPP; 1021 if (!p) 1022 return 0; 1023 for (i = 0; i < rssConf->indTableSize; i++) 1024 rssConf->indTable[i] = p[i]; 1025 1026 spin_lock_irqsave(&adapter->cmd_lock, flags); 1027 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 1028 VMXNET3_CMD_UPDATE_RSSIDT); 1029 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 1030 1031 return 0; 1032 1033 } 1034 #endif 1035 1036 static int 1037 vmxnet3_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 1038 { 1039 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 1040 1041 if (!VMXNET3_VERSION_GE_3(adapter)) 1042 return -EOPNOTSUPP; 1043 1044 switch (adapter->coal_conf->coalMode) { 1045 case VMXNET3_COALESCE_DISABLED: 1046 /* struct ethtool_coalesce is already initialized to 0 */ 1047 break; 1048 case VMXNET3_COALESCE_ADAPT: 1049 ec->use_adaptive_rx_coalesce = true; 1050 break; 1051 case VMXNET3_COALESCE_STATIC: 1052 ec->tx_max_coalesced_frames = 1053 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth; 1054 ec->rx_max_coalesced_frames = 1055 adapter->coal_conf->coalPara.coalStatic.rx_depth; 1056 break; 1057 case VMXNET3_COALESCE_RBC: { 1058 u32 rbc_rate; 1059 1060 rbc_rate = adapter->coal_conf->coalPara.coalRbc.rbc_rate; 1061 ec->rx_coalesce_usecs = VMXNET3_COAL_RBC_USECS(rbc_rate); 1062 } 1063 break; 1064 default: 1065 return -EOPNOTSUPP; 1066 } 1067 1068 return 0; 1069 } 1070 1071 static int 1072 vmxnet3_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 1073 { 1074 struct vmxnet3_adapter *adapter = netdev_priv(netdev); 1075 struct Vmxnet3_DriverShared *shared = adapter->shared; 1076 union Vmxnet3_CmdInfo *cmdInfo = &shared->cu.cmdInfo; 1077 unsigned long flags; 1078 1079 if (!VMXNET3_VERSION_GE_3(adapter)) 1080 return -EOPNOTSUPP; 1081 1082 if ((ec->rx_coalesce_usecs == 0) && 1083 (ec->use_adaptive_rx_coalesce == 0) && 1084 (ec->tx_max_coalesced_frames == 0) && 1085 (ec->rx_max_coalesced_frames == 0)) { 1086 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1087 adapter->coal_conf->coalMode = VMXNET3_COALESCE_DISABLED; 1088 goto done; 1089 } 1090 1091 if (ec->rx_coalesce_usecs != 0) { 1092 u32 rbc_rate; 1093 1094 if ((ec->use_adaptive_rx_coalesce != 0) || 1095 (ec->tx_max_coalesced_frames != 0) || 1096 (ec->rx_max_coalesced_frames != 0)) { 1097 return -EINVAL; 1098 } 1099 1100 rbc_rate = VMXNET3_COAL_RBC_RATE(ec->rx_coalesce_usecs); 1101 if (rbc_rate < VMXNET3_COAL_RBC_MIN_RATE || 1102 rbc_rate > VMXNET3_COAL_RBC_MAX_RATE) { 1103 return -EINVAL; 1104 } 1105 1106 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1107 adapter->coal_conf->coalMode = VMXNET3_COALESCE_RBC; 1108 adapter->coal_conf->coalPara.coalRbc.rbc_rate = rbc_rate; 1109 goto done; 1110 } 1111 1112 if (ec->use_adaptive_rx_coalesce != 0) { 1113 if ((ec->rx_coalesce_usecs != 0) || 1114 (ec->tx_max_coalesced_frames != 0) || 1115 (ec->rx_max_coalesced_frames != 0)) { 1116 return -EINVAL; 1117 } 1118 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1119 adapter->coal_conf->coalMode = VMXNET3_COALESCE_ADAPT; 1120 goto done; 1121 } 1122 1123 if ((ec->tx_max_coalesced_frames != 0) || 1124 (ec->rx_max_coalesced_frames != 0)) { 1125 if ((ec->rx_coalesce_usecs != 0) || 1126 (ec->use_adaptive_rx_coalesce != 0)) { 1127 return -EINVAL; 1128 } 1129 1130 if ((ec->tx_max_coalesced_frames > 1131 VMXNET3_COAL_STATIC_MAX_DEPTH) || 1132 (ec->rx_max_coalesced_frames > 1133 VMXNET3_COAL_STATIC_MAX_DEPTH)) { 1134 return -EINVAL; 1135 } 1136 1137 memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf)); 1138 adapter->coal_conf->coalMode = VMXNET3_COALESCE_STATIC; 1139 1140 adapter->coal_conf->coalPara.coalStatic.tx_comp_depth = 1141 (ec->tx_max_coalesced_frames ? 1142 ec->tx_max_coalesced_frames : 1143 VMXNET3_COAL_STATIC_DEFAULT_DEPTH); 1144 1145 adapter->coal_conf->coalPara.coalStatic.rx_depth = 1146 (ec->rx_max_coalesced_frames ? 1147 ec->rx_max_coalesced_frames : 1148 VMXNET3_COAL_STATIC_DEFAULT_DEPTH); 1149 1150 adapter->coal_conf->coalPara.coalStatic.tx_depth = 1151 VMXNET3_COAL_STATIC_DEFAULT_DEPTH; 1152 goto done; 1153 } 1154 1155 done: 1156 adapter->default_coal_mode = false; 1157 if (netif_running(netdev)) { 1158 spin_lock_irqsave(&adapter->cmd_lock, flags); 1159 cmdInfo->varConf.confVer = 1; 1160 cmdInfo->varConf.confLen = 1161 cpu_to_le32(sizeof(*adapter->coal_conf)); 1162 cmdInfo->varConf.confPA = cpu_to_le64(adapter->coal_conf_pa); 1163 VMXNET3_WRITE_BAR1_REG(adapter, VMXNET3_REG_CMD, 1164 VMXNET3_CMD_SET_COALESCE); 1165 spin_unlock_irqrestore(&adapter->cmd_lock, flags); 1166 } 1167 1168 return 0; 1169 } 1170 1171 static const struct ethtool_ops vmxnet3_ethtool_ops = { 1172 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 1173 ETHTOOL_COALESCE_MAX_FRAMES | 1174 ETHTOOL_COALESCE_USE_ADAPTIVE_RX, 1175 .get_drvinfo = vmxnet3_get_drvinfo, 1176 .get_regs_len = vmxnet3_get_regs_len, 1177 .get_regs = vmxnet3_get_regs, 1178 .get_wol = vmxnet3_get_wol, 1179 .set_wol = vmxnet3_set_wol, 1180 .get_link = ethtool_op_get_link, 1181 .get_coalesce = vmxnet3_get_coalesce, 1182 .set_coalesce = vmxnet3_set_coalesce, 1183 .get_strings = vmxnet3_get_strings, 1184 .get_sset_count = vmxnet3_get_sset_count, 1185 .get_ethtool_stats = vmxnet3_get_ethtool_stats, 1186 .get_ringparam = vmxnet3_get_ringparam, 1187 .set_ringparam = vmxnet3_set_ringparam, 1188 .get_rxnfc = vmxnet3_get_rxnfc, 1189 .set_rxnfc = vmxnet3_set_rxnfc, 1190 #ifdef VMXNET3_RSS 1191 .get_rxfh_indir_size = vmxnet3_get_rss_indir_size, 1192 .get_rxfh = vmxnet3_get_rss, 1193 .set_rxfh = vmxnet3_set_rss, 1194 #endif 1195 .get_link_ksettings = vmxnet3_get_link_ksettings, 1196 }; 1197 1198 void vmxnet3_set_ethtool_ops(struct net_device *netdev) 1199 { 1200 netdev->ethtool_ops = &vmxnet3_ethtool_ops; 1201 } 1202