drivers/net/vmxnet3/vmxnet3_ethdev.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/queue.h>
  35 #include <stdio.h>
  36 #include <errno.h>
  37 #include <stdint.h>
  38 #include <string.h>
  39 #include <unistd.h>
  40 #include <stdarg.h>
  41 #include <fcntl.h>
  42 #include <inttypes.h>
  43 #include <rte_byteorder.h>
  44 #include <rte_common.h>
  45 #include <rte_cycles.h>
  46
  47 #include <rte_interrupts.h>
  48 #include <rte_log.h>
  49 #include <rte_debug.h>
  50 #include <rte_pci.h>
  51 #include <rte_atomic.h>
  52 #include <rte_branch_prediction.h>
  53 #include <rte_memory.h>
  54 #include <rte_memzone.h>
  55 #include <rte_eal.h>
  56 #include <rte_alarm.h>
  57 #include <rte_ether.h>
  58 #include <rte_ethdev.h>
  59 #include <rte_atomic.h>
  60 #include <rte_string_fns.h>
  61 #include <rte_malloc.h>
  62 #include <rte_dev.h>
  63
  64 #include "base/vmxnet3_defs.h"
  65
  66 #include "vmxnet3_ring.h"
  67 #include "vmxnet3_logs.h"
  68 #include "vmxnet3_ethdev.h"
  69
  70 #define PROCESS_SYS_EVENTS 0
  71
  72 static int eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev);
  73 static int eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev);
  74 static int vmxnet3_dev_configure(struct rte_eth_dev *dev);
  75 static int vmxnet3_dev_start(struct rte_eth_dev *dev);
  76 static void vmxnet3_dev_stop(struct rte_eth_dev *dev);
  77 static void vmxnet3_dev_close(struct rte_eth_dev *dev);
  78 static void vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set);
  79 static void vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev);
  80 static void vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev);
  81 static void vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev);
  82 static void vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev);
  83 static int vmxnet3_dev_link_update(struct rte_eth_dev *dev,
  84                                    int wait_to_complete);
  85 static void vmxnet3_dev_stats_get(struct rte_eth_dev *dev,
  86                                   struct rte_eth_stats *stats);
  87 static void vmxnet3_dev_info_get(struct rte_eth_dev *dev,
  88                                  struct rte_eth_dev_info *dev_info);
  89 static const uint32_t *
  90 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
  91 static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
  92                                        uint16_t vid, int on);
  93 static void vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
  94 static void vmxnet3_mac_addr_set(struct rte_eth_dev *dev,
  95                                  struct ether_addr *mac_addr);
  96
  97 #if PROCESS_SYS_EVENTS == 1
  98 static void vmxnet3_process_events(struct vmxnet3_hw *);
  99 #endif
 100 /*
 101  * The set of PCI devices this driver supports
 102  */
 103 #define VMWARE_PCI_VENDOR_ID 0x15AD
 104 #define VMWARE_DEV_ID_VMXNET3 0x07B0
 105 static const struct rte_pci_id pci_id_vmxnet3_map[] = {
 106         { RTE_PCI_DEVICE(VMWARE_PCI_VENDOR_ID, VMWARE_DEV_ID_VMXNET3) },
 107         { .vendor_id = 0, /* sentinel */ },
 108 };
 109
 110 static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
 111         .dev_configure        = vmxnet3_dev_configure,
 112         .dev_start            = vmxnet3_dev_start,
 113         .dev_stop             = vmxnet3_dev_stop,
 114         .dev_close            = vmxnet3_dev_close,
 115         .promiscuous_enable   = vmxnet3_dev_promiscuous_enable,
 116         .promiscuous_disable  = vmxnet3_dev_promiscuous_disable,
 117         .allmulticast_enable  = vmxnet3_dev_allmulticast_enable,
 118         .allmulticast_disable = vmxnet3_dev_allmulticast_disable,
 119         .link_update          = vmxnet3_dev_link_update,
 120         .stats_get            = vmxnet3_dev_stats_get,
 121         .mac_addr_set         = vmxnet3_mac_addr_set,
 122         .dev_infos_get        = vmxnet3_dev_info_get,
 123         .dev_supported_ptypes_get = vmxnet3_dev_supported_ptypes_get,
 124         .vlan_filter_set      = vmxnet3_dev_vlan_filter_set,
 125         .vlan_offload_set     = vmxnet3_dev_vlan_offload_set,
 126         .rx_queue_setup       = vmxnet3_dev_rx_queue_setup,
 127         .rx_queue_release     = vmxnet3_dev_rx_queue_release,
 128         .tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
 129         .tx_queue_release     = vmxnet3_dev_tx_queue_release,
 130 };
 131
 132 static const struct rte_memzone *
 133 gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
 134                  const char *post_string, int socket_id,
 135                  uint16_t align, bool reuse)
 136 {
 137         char z_name[RTE_MEMZONE_NAMESIZE];
 138         const struct rte_memzone *mz;
 139
 140         snprintf(z_name, sizeof(z_name), "%s_%d_%s",
 141                  dev->driver->pci_drv.driver.name, dev->data->port_id, post_string);
 142
 143         mz = rte_memzone_lookup(z_name);
 144         if (!reuse) {
 145                 if (mz)
 146                         rte_memzone_free(mz);
 147                 return rte_memzone_reserve_aligned(z_name, size, socket_id,
 148                                                    0, align);
 149         }
 150
 151         if (mz)
 152                 return mz;
 153
 154         return rte_memzone_reserve_aligned(z_name, size, socket_id, 0, align);
 155 }
 156
 157 /**
 158  * Atomically reads the link status information from global
 159  * structure rte_eth_dev.
 160  *
 161  * @param dev
 162  *   - Pointer to the structure rte_eth_dev to read from.
 163  *   - Pointer to the buffer to be saved with the link status.
 164  *
 165  * @return
 166  *   - On success, zero.
 167  *   - On failure, negative value.
 168  */
 169
 170 static int
 171 vmxnet3_dev_atomic_read_link_status(struct rte_eth_dev *dev,
 172                                     struct rte_eth_link *link)
 173 {
 174         struct rte_eth_link *dst = link;
 175         struct rte_eth_link *src = &(dev->data->dev_link);
 176
 177         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 178                                 *(uint64_t *)src) == 0)
 179                 return -1;
 180
 181         return 0;
 182 }
 183
 184 /**
 185  * Atomically writes the link status information into global
 186  * structure rte_eth_dev.
 187  *
 188  * @param dev
 189  *   - Pointer to the structure rte_eth_dev to write to.
 190  *   - Pointer to the buffer to be saved with the link status.
 191  *
 192  * @return
 193  *   - On success, zero.
 194  *   - On failure, negative value.
 195  */
 196 static int
 197 vmxnet3_dev_atomic_write_link_status(struct rte_eth_dev *dev,
 198                                      struct rte_eth_link *link)
 199 {
 200         struct rte_eth_link *dst = &(dev->data->dev_link);
 201         struct rte_eth_link *src = link;
 202
 203         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 204                                 *(uint64_t *)src) == 0)
 205                 return -1;
 206
 207         return 0;
 208 }
 209
 210 /*
 211  * This function is based on vmxnet3_disable_intr()
 212  */
 213 static void
 214 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
 215 {
 216         int i;
 217
 218         PMD_INIT_FUNC_TRACE();
 219
 220         hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 221         for (i = 0; i < VMXNET3_MAX_INTRS; i++)
 222                 VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 223 }
 224
 225 /*
 226  * It returns 0 on success.
 227  */
 228 static int
 229 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 230 {
 231         struct rte_pci_device *pci_dev;
 232         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 233         uint32_t mac_hi, mac_lo, ver;
 234
 235         PMD_INIT_FUNC_TRACE();
 236
 237         eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
 238         eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 239         eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 240         pci_dev = eth_dev->pci_dev;
 241
 242         /*
 243          * for secondary processes, we don't initialize any further as primary
 244          * has already done this work.
 245          */
 246         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 247                 return 0;
 248
 249         rte_eth_copy_pci_info(eth_dev, pci_dev);
 250
 251         /* Vendor and Device ID need to be set before init of shared code */
 252         hw->device_id = pci_dev->id.device_id;
 253         hw->vendor_id = pci_dev->id.vendor_id;
 254         hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
 255         hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
 256
 257         hw->num_rx_queues = 1;
 258         hw->num_tx_queues = 1;
 259         hw->bufs_per_pkt = 1;
 260
 261         /* Check h/w version compatibility with driver. */
 262         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 263         PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 264         if (ver & 0x1)
 265                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS, 1);
 266         else {
 267                 PMD_INIT_LOG(ERR, "Incompatible h/w version, should be 0x1");
 268                 return -EIO;
 269         }
 270
 271         /* Check UPT version compatibility with driver. */
 272         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
 273         PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
 274         if (ver & 0x1)
 275                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
 276         else {
 277                 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
 278                 return -EIO;
 279         }
 280
 281         /* Getting MAC Address */
 282         mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
 283         mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
 284         memcpy(hw->perm_addr, &mac_lo, 4);
 285         memcpy(hw->perm_addr + 4, &mac_hi, 2);
 286
 287         /* Allocate memory for storing MAC addresses */
 288         eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", ETHER_ADDR_LEN *
 289                                                VMXNET3_MAX_MAC_ADDRS, 0);
 290         if (eth_dev->data->mac_addrs == NULL) {
 291                 PMD_INIT_LOG(ERR,
 292                              "Failed to allocate %d bytes needed to store MAC addresses",
 293                              ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
 294                 return -ENOMEM;
 295         }
 296         /* Copy the permanent MAC address */
 297         ether_addr_copy((struct ether_addr *) hw->perm_addr,
 298                         &eth_dev->data->mac_addrs[0]);
 299
 300         PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 301                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 302                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 303
 304         /* Put device in Quiesce Mode */
 305         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 306
 307         /* allow untagged pkts */
 308         VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 309
 310         return 0;
 311 }
 312
 313 static int
 314 eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
 315 {
 316         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 317
 318         PMD_INIT_FUNC_TRACE();
 319
 320         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 321                 return 0;
 322
 323         if (hw->adapter_stopped == 0)
 324                 vmxnet3_dev_close(eth_dev);
 325
 326         eth_dev->dev_ops = NULL;
 327         eth_dev->rx_pkt_burst = NULL;
 328         eth_dev->tx_pkt_burst = NULL;
 329
 330         rte_free(eth_dev->data->mac_addrs);
 331         eth_dev->data->mac_addrs = NULL;
 332
 333         return 0;
 334 }
 335
 336 static struct eth_driver rte_vmxnet3_pmd = {
 337         .pci_drv = {
 338                 .id_table = pci_id_vmxnet3_map,
 339                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
 340                 .probe = rte_eth_dev_pci_probe,
 341                 .remove = rte_eth_dev_pci_remove,
 342         },
 343         .eth_dev_init = eth_vmxnet3_dev_init,
 344         .eth_dev_uninit = eth_vmxnet3_dev_uninit,
 345         .dev_private_size = sizeof(struct vmxnet3_hw),
 346 };
 347
 348 static int
 349 vmxnet3_dev_configure(struct rte_eth_dev *dev)
 350 {
 351         const struct rte_memzone *mz;
 352         struct vmxnet3_hw *hw = dev->data->dev_private;
 353         size_t size;
 354
 355         PMD_INIT_FUNC_TRACE();
 356
 357         if (dev->data->nb_tx_queues > VMXNET3_MAX_TX_QUEUES ||
 358             dev->data->nb_rx_queues > VMXNET3_MAX_RX_QUEUES) {
 359                 PMD_INIT_LOG(ERR, "ERROR: Number of queues not supported");
 360                 return -EINVAL;
 361         }
 362
 363         if (!rte_is_power_of_2(dev->data->nb_rx_queues)) {
 364                 PMD_INIT_LOG(ERR, "ERROR: Number of rx queues not power of 2");
 365                 return -EINVAL;
 366         }
 367
 368         size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
 369                 dev->data->nb_tx_queues * sizeof(struct Vmxnet3_RxQueueDesc);
 370
 371         if (size > UINT16_MAX)
 372                 return -EINVAL;
 373
 374         hw->num_rx_queues = (uint8_t)dev->data->nb_rx_queues;
 375         hw->num_tx_queues = (uint8_t)dev->data->nb_tx_queues;
 376
 377         /*
 378          * Allocate a memzone for Vmxnet3_DriverShared - Vmxnet3_DSDevRead
 379          * on current socket
 380          */
 381         mz = gpa_zone_reserve(dev, sizeof(struct Vmxnet3_DriverShared),
 382                               "shared", rte_socket_id(), 8, 1);
 383
 384         if (mz == NULL) {
 385                 PMD_INIT_LOG(ERR, "ERROR: Creating shared zone");
 386                 return -ENOMEM;
 387         }
 388         memset(mz->addr, 0, mz->len);
 389
 390         hw->shared = mz->addr;
 391         hw->sharedPA = mz->phys_addr;
 392
 393         /*
 394          * Allocate a memzone for Vmxnet3_RxQueueDesc - Vmxnet3_TxQueueDesc
 395          * on current socket.
 396          *
 397          * We cannot reuse this memzone from previous allocation as its size
 398          * depends on the number of tx and rx queues, which could be different
 399          * from one config to another.
 400          */
 401         mz = gpa_zone_reserve(dev, size, "queuedesc", rte_socket_id(),
 402                               VMXNET3_QUEUE_DESC_ALIGN, 0);
 403         if (mz == NULL) {
 404                 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
 405                 return -ENOMEM;
 406         }
 407         memset(mz->addr, 0, mz->len);
 408
 409         hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
 410         hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
 411
 412         hw->queueDescPA = mz->phys_addr;
 413         hw->queue_desc_len = (uint16_t)size;
 414
 415         if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 416                 /* Allocate memory structure for UPT1_RSSConf and configure */
 417                 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf),
 418                                       "rss_conf", rte_socket_id(),
 419                                       RTE_CACHE_LINE_SIZE, 1);
 420                 if (mz == NULL) {
 421                         PMD_INIT_LOG(ERR,
 422                                      "ERROR: Creating rss_conf structure zone");
 423                         return -ENOMEM;
 424                 }
 425                 memset(mz->addr, 0, mz->len);
 426
 427                 hw->rss_conf = mz->addr;
 428                 hw->rss_confPA = mz->phys_addr;
 429         }
 430
 431         return 0;
 432 }
 433
 434 static void
 435 vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
 436 {
 437         uint32_t val;
 438
 439         PMD_INIT_LOG(DEBUG,
 440                      "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 441                      addr[0], addr[1], addr[2],
 442                      addr[3], addr[4], addr[5]);
 443
 444         memcpy(&val, addr, 4);
 445         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
 446
 447         memcpy(&val, addr + 4, 2);
 448         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 449 }
 450
 451 static int
 452 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 453 {
 454         struct rte_eth_conf port_conf = dev->data->dev_conf;
 455         struct vmxnet3_hw *hw = dev->data->dev_private;
 456         uint32_t mtu = dev->data->mtu;
 457         Vmxnet3_DriverShared *shared = hw->shared;
 458         Vmxnet3_DSDevRead *devRead = &shared->devRead;
 459         uint32_t i;
 460         int ret;
 461
 462         shared->magic = VMXNET3_REV1_MAGIC;
 463         devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
 464
 465         /* Setting up Guest OS information */
 466         devRead->misc.driverInfo.gos.gosBits   = sizeof(void *) == 4 ?
 467                 VMXNET3_GOS_BITS_32 : VMXNET3_GOS_BITS_64;
 468         devRead->misc.driverInfo.gos.gosType   = VMXNET3_GOS_TYPE_LINUX;
 469         devRead->misc.driverInfo.vmxnet3RevSpt = 1;
 470         devRead->misc.driverInfo.uptVerSpt     = 1;
 471
 472         devRead->misc.mtu = rte_le_to_cpu_32(mtu);
 473         devRead->misc.queueDescPA  = hw->queueDescPA;
 474         devRead->misc.queueDescLen = hw->queue_desc_len;
 475         devRead->misc.numTxQueues  = hw->num_tx_queues;
 476         devRead->misc.numRxQueues  = hw->num_rx_queues;
 477
 478         /*
 479          * Set number of interrupts to 1
 480          * PMD disables all the interrupts but this is MUST to activate device
 481          * It needs at least one interrupt for link events to handle
 482          * So we'll disable it later after device activation if needed
 483          */
 484         devRead->intrConf.numIntrs = 1;
 485         devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 486
 487         for (i = 0; i < hw->num_tx_queues; i++) {
 488                 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
 489                 vmxnet3_tx_queue_t *txq  = dev->data->tx_queues[i];
 490
 491                 txq->shared = &hw->tqd_start[i];
 492
 493                 tqd->ctrl.txNumDeferred  = 0;
 494                 tqd->ctrl.txThreshold    = 1;
 495                 tqd->conf.txRingBasePA   = txq->cmd_ring.basePA;
 496                 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
 497                 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
 498
 499                 tqd->conf.txRingSize   = txq->cmd_ring.size;
 500                 tqd->conf.compRingSize = txq->comp_ring.size;
 501                 tqd->conf.dataRingSize = txq->data_ring.size;
 502                 tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
 503                 tqd->status.stopped    = TRUE;
 504                 tqd->status.error      = 0;
 505                 memset(&tqd->stats, 0, sizeof(tqd->stats));
 506         }
 507
 508         for (i = 0; i < hw->num_rx_queues; i++) {
 509                 Vmxnet3_RxQueueDesc *rqd  = &hw->rqd_start[i];
 510                 vmxnet3_rx_queue_t *rxq   = dev->data->rx_queues[i];
 511
 512                 rxq->shared = &hw->rqd_start[i];
 513
 514                 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
 515                 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
 516                 rqd->conf.compRingBasePA  = rxq->comp_ring.basePA;
 517
 518                 rqd->conf.rxRingSize[0]   = rxq->cmd_ring[0].size;
 519                 rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 520                 rqd->conf.compRingSize    = rxq->comp_ring.size;
 521                 rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
 522                 rqd->status.stopped       = TRUE;
 523                 rqd->status.error         = 0;
 524                 memset(&rqd->stats, 0, sizeof(rqd->stats));
 525         }
 526
 527         /* RxMode set to 0 of VMXNET3_RXM_xxx */
 528         devRead->rxFilterConf.rxMode = 0;
 529
 530         /* Setting up feature flags */
 531         if (dev->data->dev_conf.rxmode.hw_ip_checksum)
 532                 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 533
 534         if (dev->data->dev_conf.rxmode.enable_lro) {
 535                 devRead->misc.uptFeatures |= VMXNET3_F_LRO;
 536                 devRead->misc.maxNumRxSG = 0;
 537         }
 538
 539         if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 540                 ret = vmxnet3_rss_configure(dev);
 541                 if (ret != VMXNET3_SUCCESS)
 542                         return ret;
 543
 544                 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
 545                 devRead->rssConfDesc.confVer = 1;
 546                 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
 547                 devRead->rssConfDesc.confPA  = hw->rss_confPA;
 548         }
 549
 550         vmxnet3_dev_vlan_offload_set(dev,
 551                                      ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
 552
 553         vmxnet3_write_mac(hw, hw->perm_addr);
 554
 555         return VMXNET3_SUCCESS;
 556 }
 557
 558 /*
 559  * Configure device link speed and setup link.
 560  * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
 561  * It returns 0 on success.
 562  */
 563 static int
 564 vmxnet3_dev_start(struct rte_eth_dev *dev)
 565 {
 566         int ret;
 567         struct vmxnet3_hw *hw = dev->data->dev_private;
 568
 569         PMD_INIT_FUNC_TRACE();
 570
 571         ret = vmxnet3_setup_driver_shared(dev);
 572         if (ret != VMXNET3_SUCCESS)
 573                 return ret;
 574
 575         /* Exchange shared data with device */
 576         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
 577                                VMXNET3_GET_ADDR_LO(hw->sharedPA));
 578         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
 579                                VMXNET3_GET_ADDR_HI(hw->sharedPA));
 580
 581         /* Activate device by register write */
 582         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
 583         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 584
 585         if (ret != 0) {
 586                 PMD_INIT_LOG(ERR, "Device activation: UNSUCCESSFUL");
 587                 return -EINVAL;
 588         }
 589
 590         /* Disable interrupts */
 591         vmxnet3_disable_intr(hw);
 592
 593         /*
 594          * Load RX queues with blank mbufs and update next2fill index for device
 595          * Update RxMode of the device
 596          */
 597         ret = vmxnet3_dev_rxtx_init(dev);
 598         if (ret != VMXNET3_SUCCESS) {
 599                 PMD_INIT_LOG(ERR, "Device queue init: UNSUCCESSFUL");
 600                 return ret;
 601         }
 602
 603         /* Setting proper Rx Mode and issue Rx Mode Update command */
 604         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 605
 606         /*
 607          * Don't need to handle events for now
 608          */
 609 #if PROCESS_SYS_EVENTS == 1
 610         events = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_ECR);
 611         PMD_INIT_LOG(DEBUG, "Reading events: 0x%X", events);
 612         vmxnet3_process_events(hw);
 613 #endif
 614         return VMXNET3_SUCCESS;
 615 }
 616
 617 /*
 618  * Stop device: disable rx and tx functions to allow for reconfiguring.
 619  */
 620 static void
 621 vmxnet3_dev_stop(struct rte_eth_dev *dev)
 622 {
 623         struct rte_eth_link link;
 624         struct vmxnet3_hw *hw = dev->data->dev_private;
 625
 626         PMD_INIT_FUNC_TRACE();
 627
 628         if (hw->adapter_stopped == 1) {
 629                 PMD_INIT_LOG(DEBUG, "Device already closed.");
 630                 return;
 631         }
 632
 633         /* disable interrupts */
 634         vmxnet3_disable_intr(hw);
 635
 636         /* quiesce the device first */
 637         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 638         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
 639         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
 640
 641         /* reset the device */
 642         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
 643         PMD_INIT_LOG(DEBUG, "Device reset.");
 644         hw->adapter_stopped = 0;
 645
 646         vmxnet3_dev_clear_queues(dev);
 647
 648         /* Clear recorded link status */
 649         memset(&link, 0, sizeof(link));
 650         vmxnet3_dev_atomic_write_link_status(dev, &link);
 651 }
 652
 653 /*
 654  * Reset and stop device.
 655  */
 656 static void
 657 vmxnet3_dev_close(struct rte_eth_dev *dev)
 658 {
 659         struct vmxnet3_hw *hw = dev->data->dev_private;
 660
 661         PMD_INIT_FUNC_TRACE();
 662
 663         vmxnet3_dev_stop(dev);
 664         hw->adapter_stopped = 1;
 665 }
 666
 667 static void
 668 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 669 {
 670         unsigned int i;
 671         struct vmxnet3_hw *hw = dev->data->dev_private;
 672
 673         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 674
 675         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 676         for (i = 0; i < hw->num_tx_queues; i++) {
 677                 struct UPT1_TxStats *txStats = &hw->tqd_start[i].stats;
 678
 679                 stats->q_opackets[i] = txStats->ucastPktsTxOK +
 680                                         txStats->mcastPktsTxOK +
 681                                         txStats->bcastPktsTxOK;
 682                 stats->q_obytes[i] = txStats->ucastBytesTxOK +
 683                                         txStats->mcastBytesTxOK +
 684                                         txStats->bcastBytesTxOK;
 685
 686                 stats->opackets += stats->q_opackets[i];
 687                 stats->obytes += stats->q_obytes[i];
 688                 stats->oerrors += txStats->pktsTxError + txStats->pktsTxDiscard;
 689         }
 690
 691         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
 692         for (i = 0; i < hw->num_rx_queues; i++) {
 693                 struct UPT1_RxStats *rxStats = &hw->rqd_start[i].stats;
 694
 695                 stats->q_ipackets[i] = rxStats->ucastPktsRxOK +
 696                                         rxStats->mcastPktsRxOK +
 697                                         rxStats->bcastPktsRxOK;
 698
 699                 stats->q_ibytes[i] = rxStats->ucastBytesRxOK +
 700                                         rxStats->mcastBytesRxOK +
 701                                         rxStats->bcastBytesRxOK;
 702
 703                 stats->ipackets += stats->q_ipackets[i];
 704                 stats->ibytes += stats->q_ibytes[i];
 705
 706                 stats->q_errors[i] = rxStats->pktsRxError;
 707                 stats->ierrors += rxStats->pktsRxError;
 708                 stats->rx_nombuf += rxStats->pktsRxOutOfBuf;
 709         }
 710 }
 711
 712 static void
 713 vmxnet3_dev_info_get(__rte_unused struct rte_eth_dev *dev,
 714                      struct rte_eth_dev_info *dev_info)
 715 {
 716         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
 717         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
 718         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
 719         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
 720         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
 721
 722         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 723         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
 724
 725         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 726                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
 727                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
 728                 .nb_align = 1,
 729         };
 730
 731         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 732                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
 733                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
 734                 .nb_align = 1,
 735         };
 736
 737         dev_info->rx_offload_capa =
 738                 DEV_RX_OFFLOAD_VLAN_STRIP |
 739                 DEV_RX_OFFLOAD_UDP_CKSUM |
 740                 DEV_RX_OFFLOAD_TCP_CKSUM |
 741                 DEV_RX_OFFLOAD_TCP_LRO;
 742
 743         dev_info->tx_offload_capa =
 744                 DEV_TX_OFFLOAD_VLAN_INSERT |
 745                 DEV_TX_OFFLOAD_TCP_CKSUM |
 746                 DEV_TX_OFFLOAD_UDP_CKSUM |
 747                 DEV_TX_OFFLOAD_TCP_TSO;
 748 }
 749
 750 static const uint32_t *
 751 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 752 {
 753         static const uint32_t ptypes[] = {
 754                 RTE_PTYPE_L3_IPV4_EXT,
 755                 RTE_PTYPE_L3_IPV4,
 756                 RTE_PTYPE_UNKNOWN
 757         };
 758
 759         if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
 760                 return ptypes;
 761         return NULL;
 762 }
 763
 764 static void
 765 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 766 {
 767         struct vmxnet3_hw *hw = dev->data->dev_private;
 768
 769         ether_addr_copy(mac_addr, (struct ether_addr *)(hw->perm_addr));
 770         ether_addr_copy(mac_addr, &dev->data->mac_addrs[0]);
 771         vmxnet3_write_mac(hw, mac_addr->addr_bytes);
 772 }
 773
 774 /* return 0 means link status changed, -1 means not changed */
 775 static int
 776 vmxnet3_dev_link_update(struct rte_eth_dev *dev,
 777                         __rte_unused int wait_to_complete)
 778 {
 779         struct vmxnet3_hw *hw = dev->data->dev_private;
 780         struct rte_eth_link old = { 0 }, link;
 781         uint32_t ret;
 782
 783         /* Link status doesn't change for stopped dev */
 784         if (dev->data->dev_started == 0)
 785                 return -1;
 786
 787         memset(&link, 0, sizeof(link));
 788         vmxnet3_dev_atomic_read_link_status(dev, &old);
 789
 790         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
 791         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 792
 793         if (ret & 0x1) {
 794                 link.link_status = ETH_LINK_UP;
 795                 link.link_duplex = ETH_LINK_FULL_DUPLEX;
 796                 link.link_speed = ETH_SPEED_NUM_10G;
 797                 link.link_autoneg = ETH_LINK_FIXED;
 798         }
 799
 800         vmxnet3_dev_atomic_write_link_status(dev, &link);
 801
 802         return (old.link_status == link.link_status) ? -1 : 0;
 803 }
 804
 805 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
 806 static void
 807 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set)
 808 {
 809         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 810
 811         if (set)
 812                 rxConf->rxMode = rxConf->rxMode | feature;
 813         else
 814                 rxConf->rxMode = rxConf->rxMode & (~feature);
 815
 816         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
 817 }
 818
 819 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 820 static void
 821 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
 822 {
 823         struct vmxnet3_hw *hw = dev->data->dev_private;
 824         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 825
 826         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
 827         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
 828
 829         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 830                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 831 }
 832
 833 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 834 static void
 835 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
 836 {
 837         struct vmxnet3_hw *hw = dev->data->dev_private;
 838         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 839
 840         if (dev->data->dev_conf.rxmode.hw_vlan_filter)
 841                 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 842         else
 843                 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
 844         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
 845         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 846                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 847 }
 848
 849 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 850 static void
 851 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
 852 {
 853         struct vmxnet3_hw *hw = dev->data->dev_private;
 854
 855         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
 856 }
 857
 858 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 859 static void
 860 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
 861 {
 862         struct vmxnet3_hw *hw = dev->data->dev_private;
 863
 864         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
 865 }
 866
 867 /* Enable/disable filter on vlan */
 868 static int
 869 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
 870 {
 871         struct vmxnet3_hw *hw = dev->data->dev_private;
 872         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 873         uint32_t *vf_table = rxConf->vfTable;
 874
 875         /* save state for restore */
 876         if (on)
 877                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 878         else
 879                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 880
 881         /* don't change active filter if in promiscuous mode */
 882         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
 883                 return 0;
 884
 885         /* set in hardware */
 886         if (on)
 887                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
 888         else
 889                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
 890
 891         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 892                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 893         return 0;
 894 }
 895
 896 static void
 897 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 898 {
 899         struct vmxnet3_hw *hw = dev->data->dev_private;
 900         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
 901         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
 902
 903         if (mask & ETH_VLAN_STRIP_MASK) {
 904                 if (dev->data->dev_conf.rxmode.hw_vlan_strip)
 905                         devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
 906                 else
 907                         devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
 908
 909                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 910                                        VMXNET3_CMD_UPDATE_FEATURE);
 911         }
 912
 913         if (mask & ETH_VLAN_FILTER_MASK) {
 914                 if (dev->data->dev_conf.rxmode.hw_vlan_filter)
 915                         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 916                 else
 917                         memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
 918
 919                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 920                                        VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 921         }
 922 }
 923
 924 #if PROCESS_SYS_EVENTS == 1
 925 static void
 926 vmxnet3_process_events(struct vmxnet3_hw *hw)
 927 {
 928         uint32_t events = hw->shared->ecr;
 929
 930         if (!events) {
 931                 PMD_INIT_LOG(ERR, "No events to process");
 932                 return;
 933         }
 934
 935         /*
 936          * ECR bits when written with 1b are cleared. Hence write
 937          * events back to ECR so that the bits which were set will be reset.
 938          */
 939         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
 940
 941         /* Check if link state has changed */
 942         if (events & VMXNET3_ECR_LINK)
 943                 PMD_INIT_LOG(ERR,
 944                              "Process events in %s(): VMXNET3_ECR_LINK event",
 945                              __func__);
 946
 947         /* Check if there is an error on xmit/recv queues */
 948         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
 949                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 950                                        VMXNET3_CMD_GET_QUEUE_STATUS);
 951
 952                 if (hw->tqd_start->status.stopped)
 953                         PMD_INIT_LOG(ERR, "tq error 0x%x",
 954                                      hw->tqd_start->status.error);
 955
 956                 if (hw->rqd_start->status.stopped)
 957                         PMD_INIT_LOG(ERR, "rq error 0x%x",
 958                                      hw->rqd_start->status.error);
 959
 960                 /* Reset the device */
 961                 /* Have to reset the device */
 962         }
 963
 964         if (events & VMXNET3_ECR_DIC)
 965                 PMD_INIT_LOG(ERR, "Device implementation change event.");
 966
 967         if (events & VMXNET3_ECR_DEBUG)
 968                 PMD_INIT_LOG(ERR, "Debug event generated by device.");
 969 }
 970 #endif
 971
 972 RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd.pci_drv);
 973 RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);