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, uint16_t align)
 135 {
 136         char z_name[RTE_MEMZONE_NAMESIZE];
 137         const struct rte_memzone *mz;
 138
 139         snprintf(z_name, sizeof(z_name), "%s_%d_%s",
 140                                         dev->driver->pci_drv.name, dev->data->port_id, post_string);
 141
 142         mz = rte_memzone_lookup(z_name);
 143         if (mz)
 144                 return mz;
 145
 146         return rte_memzone_reserve_aligned(z_name, size,
 147                         socket_id, 0, align);
 148 }
 149
 150 /**
 151  * Atomically reads the link status information from global
 152  * structure rte_eth_dev.
 153  *
 154  * @param dev
 155  *   - Pointer to the structure rte_eth_dev to read from.
 156  *   - Pointer to the buffer to be saved with the link status.
 157  *
 158  * @return
 159  *   - On success, zero.
 160  *   - On failure, negative value.
 161  */
 162
 163 static int
 164 vmxnet3_dev_atomic_read_link_status(struct rte_eth_dev *dev,
 165                                     struct rte_eth_link *link)
 166 {
 167         struct rte_eth_link *dst = link;
 168         struct rte_eth_link *src = &(dev->data->dev_link);
 169
 170         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 171                                 *(uint64_t *)src) == 0)
 172                 return -1;
 173
 174         return 0;
 175 }
 176
 177 /**
 178  * Atomically writes the link status information into global
 179  * structure rte_eth_dev.
 180  *
 181  * @param dev
 182  *   - Pointer to the structure rte_eth_dev to write to.
 183  *   - Pointer to the buffer to be saved with the link status.
 184  *
 185  * @return
 186  *   - On success, zero.
 187  *   - On failure, negative value.
 188  */
 189 static int
 190 vmxnet3_dev_atomic_write_link_status(struct rte_eth_dev *dev,
 191                                      struct rte_eth_link *link)
 192 {
 193         struct rte_eth_link *dst = &(dev->data->dev_link);
 194         struct rte_eth_link *src = link;
 195
 196         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 197                                         *(uint64_t *)src) == 0)
 198                 return -1;
 199
 200         return 0;
 201 }
 202
 203 /*
 204  * This function is based on vmxnet3_disable_intr()
 205  */
 206 static void
 207 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
 208 {
 209         int i;
 210
 211         PMD_INIT_FUNC_TRACE();
 212
 213         hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 214         for (i = 0; i < VMXNET3_MAX_INTRS; i++)
 215                         VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 216 }
 217
 218 /*
 219  * It returns 0 on success.
 220  */
 221 static int
 222 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 223 {
 224         struct rte_pci_device *pci_dev;
 225         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 226         uint32_t mac_hi, mac_lo, ver;
 227
 228         PMD_INIT_FUNC_TRACE();
 229
 230         eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
 231         eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 232         eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 233         pci_dev = eth_dev->pci_dev;
 234
 235         /*
 236          * for secondary processes, we don't initialize any further as primary
 237          * has already done this work.
 238          */
 239         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 240                 return 0;
 241
 242         rte_eth_copy_pci_info(eth_dev, pci_dev);
 243
 244         /* Vendor and Device ID need to be set before init of shared code */
 245         hw->device_id = pci_dev->id.device_id;
 246         hw->vendor_id = pci_dev->id.vendor_id;
 247         hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
 248         hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
 249
 250         hw->num_rx_queues = 1;
 251         hw->num_tx_queues = 1;
 252         hw->bufs_per_pkt = 1;
 253
 254         /* Check h/w version compatibility with driver. */
 255         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 256         PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 257         if (ver & 0x1)
 258                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS, 1);
 259         else {
 260                 PMD_INIT_LOG(ERR, "Incompatible h/w version, should be 0x1");
 261                 return -EIO;
 262         }
 263
 264         /* Check UPT version compatibility with driver. */
 265         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
 266         PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
 267         if (ver & 0x1)
 268                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
 269         else {
 270                 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
 271                 return -EIO;
 272         }
 273
 274         /* Getting MAC Address */
 275         mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
 276         mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
 277         memcpy(hw->perm_addr  , &mac_lo, 4);
 278         memcpy(hw->perm_addr+4, &mac_hi, 2);
 279
 280         /* Allocate memory for storing MAC addresses */
 281         eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", ETHER_ADDR_LEN *
 282                                                VMXNET3_MAX_MAC_ADDRS, 0);
 283         if (eth_dev->data->mac_addrs == NULL) {
 284                 PMD_INIT_LOG(ERR,
 285                              "Failed to allocate %d bytes needed to store MAC addresses",
 286                              ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
 287                 return -ENOMEM;
 288         }
 289         /* Copy the permanent MAC address */
 290         ether_addr_copy((struct ether_addr *) hw->perm_addr,
 291                         &eth_dev->data->mac_addrs[0]);
 292
 293         PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 294                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 295                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 296
 297         /* Put device in Quiesce Mode */
 298         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 299
 300         /* allow untagged pkts */
 301         VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 302
 303         return 0;
 304 }
 305
 306 static int
 307 eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
 308 {
 309         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 310
 311         PMD_INIT_FUNC_TRACE();
 312
 313         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 314                 return 0;
 315
 316         if (hw->adapter_stopped == 0)
 317                 vmxnet3_dev_close(eth_dev);
 318
 319         eth_dev->dev_ops = NULL;
 320         eth_dev->rx_pkt_burst = NULL;
 321         eth_dev->tx_pkt_burst = NULL;
 322
 323         rte_free(eth_dev->data->mac_addrs);
 324         eth_dev->data->mac_addrs = NULL;
 325
 326         return 0;
 327 }
 328
 329 static struct eth_driver rte_vmxnet3_pmd = {
 330         .pci_drv = {
 331                 .name = "rte_vmxnet3_pmd",
 332                 .id_table = pci_id_vmxnet3_map,
 333                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
 334         },
 335         .eth_dev_init = eth_vmxnet3_dev_init,
 336         .eth_dev_uninit = eth_vmxnet3_dev_uninit,
 337         .dev_private_size = sizeof(struct vmxnet3_hw),
 338 };
 339
 340 /*
 341  * Driver initialization routine.
 342  * Invoked once at EAL init time.
 343  * Register itself as the [Poll Mode] Driver of Virtual PCI VMXNET3 devices.
 344  */
 345 static int
 346 rte_vmxnet3_pmd_init(const char *name __rte_unused, const char *param __rte_unused)
 347 {
 348         PMD_INIT_FUNC_TRACE();
 349
 350         rte_eth_driver_register(&rte_vmxnet3_pmd);
 351         return 0;
 352 }
 353
 354 static int
 355 vmxnet3_dev_configure(struct rte_eth_dev *dev)
 356 {
 357         const struct rte_memzone *mz;
 358         struct vmxnet3_hw *hw = dev->data->dev_private;
 359         size_t size;
 360
 361         PMD_INIT_FUNC_TRACE();
 362
 363         if (dev->data->nb_rx_queues > UINT8_MAX ||
 364             dev->data->nb_tx_queues > UINT8_MAX)
 365                 return -EINVAL;
 366
 367         size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
 368                 dev->data->nb_tx_queues * sizeof(struct Vmxnet3_RxQueueDesc);
 369
 370         if (size > UINT16_MAX)
 371                 return -EINVAL;
 372
 373         hw->num_rx_queues = (uint8_t)dev->data->nb_rx_queues;
 374         hw->num_tx_queues = (uint8_t)dev->data->nb_tx_queues;
 375
 376         /*
 377          * Allocate a memzone for Vmxnet3_DriverShared - Vmxnet3_DSDevRead
 378          * on current socket
 379          */
 380         mz = gpa_zone_reserve(dev, sizeof(struct Vmxnet3_DriverShared),
 381                               "shared", rte_socket_id(), 8);
 382
 383         if (mz == NULL) {
 384                 PMD_INIT_LOG(ERR, "ERROR: Creating shared zone");
 385                 return -ENOMEM;
 386         }
 387         memset(mz->addr, 0, mz->len);
 388
 389         hw->shared = mz->addr;
 390         hw->sharedPA = mz->phys_addr;
 391
 392         /*
 393          * Allocate a memzone for Vmxnet3_RxQueueDesc - Vmxnet3_TxQueueDesc
 394          * on current socket
 395          */
 396         mz = gpa_zone_reserve(dev, size, "queuedesc",
 397                               rte_socket_id(), VMXNET3_QUEUE_DESC_ALIGN);
 398         if (mz == NULL) {
 399                 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
 400                 return -ENOMEM;
 401         }
 402         memset(mz->addr, 0, mz->len);
 403
 404         hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
 405         hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
 406
 407         hw->queueDescPA = mz->phys_addr;
 408         hw->queue_desc_len = (uint16_t)size;
 409
 410         if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 411
 412                 /* Allocate memory structure for UPT1_RSSConf and configure */
 413                 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf), "rss_conf",
 414                                       rte_socket_id(), RTE_CACHE_LINE_SIZE);
 415                 if (mz == NULL) {
 416                         PMD_INIT_LOG(ERR,
 417                                      "ERROR: Creating rss_conf structure zone");
 418                         return -ENOMEM;
 419                 }
 420                 memset(mz->addr, 0, mz->len);
 421
 422                 hw->rss_conf = mz->addr;
 423                 hw->rss_confPA = mz->phys_addr;
 424         }
 425
 426         return 0;
 427 }
 428
 429 static void
 430 vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
 431 {
 432         uint32_t val;
 433
 434         PMD_INIT_LOG(DEBUG,
 435                      "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 436                      addr[0], addr[1], addr[2],
 437                      addr[3], addr[4], addr[5]);
 438
 439         val = *(const uint32_t *)addr;
 440         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
 441
 442         val = (addr[5] << 8) | addr[4];
 443         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 444 }
 445
 446 static int
 447 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 448 {
 449         struct rte_eth_conf port_conf = dev->data->dev_conf;
 450         struct vmxnet3_hw *hw = dev->data->dev_private;
 451         uint32_t mtu = dev->data->mtu;
 452         Vmxnet3_DriverShared *shared = hw->shared;
 453         Vmxnet3_DSDevRead *devRead = &shared->devRead;
 454         uint32_t i;
 455         int ret;
 456
 457         shared->magic = VMXNET3_REV1_MAGIC;
 458         devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
 459
 460         /* Setting up Guest OS information */
 461         devRead->misc.driverInfo.gos.gosBits   = sizeof(void *) == 4 ?
 462                 VMXNET3_GOS_BITS_32 :
 463                 VMXNET3_GOS_BITS_64;
 464         devRead->misc.driverInfo.gos.gosType   = VMXNET3_GOS_TYPE_LINUX;
 465         devRead->misc.driverInfo.vmxnet3RevSpt = 1;
 466         devRead->misc.driverInfo.uptVerSpt     = 1;
 467
 468         devRead->misc.mtu = rte_le_to_cpu_32(mtu);
 469         devRead->misc.queueDescPA  = hw->queueDescPA;
 470         devRead->misc.queueDescLen = hw->queue_desc_len;
 471         devRead->misc.numTxQueues  = hw->num_tx_queues;
 472         devRead->misc.numRxQueues  = hw->num_rx_queues;
 473
 474         /*
 475          * Set number of interrupts to 1
 476          * PMD disables all the interrupts but this is MUST to activate device
 477          * It needs at least one interrupt for link events to handle
 478          * So we'll disable it later after device activation if needed
 479          */
 480         devRead->intrConf.numIntrs = 1;
 481         devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 482
 483         for (i = 0; i < hw->num_tx_queues; i++) {
 484                 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
 485                 vmxnet3_tx_queue_t *txq  = dev->data->tx_queues[i];
 486
 487                 tqd->ctrl.txNumDeferred  = 0;
 488                 tqd->ctrl.txThreshold    = 1;
 489                 tqd->conf.txRingBasePA   = txq->cmd_ring.basePA;
 490                 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
 491                 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
 492
 493                 tqd->conf.txRingSize   = txq->cmd_ring.size;
 494                 tqd->conf.compRingSize = txq->comp_ring.size;
 495                 tqd->conf.dataRingSize = txq->data_ring.size;
 496                 tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
 497                 tqd->status.stopped    = TRUE;
 498                 tqd->status.error      = 0;
 499                 memset(&tqd->stats, 0, sizeof(tqd->stats));
 500         }
 501
 502         for (i = 0; i < hw->num_rx_queues; i++) {
 503                 Vmxnet3_RxQueueDesc *rqd  = &hw->rqd_start[i];
 504                 vmxnet3_rx_queue_t *rxq   = dev->data->rx_queues[i];
 505
 506                 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
 507                 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
 508                 rqd->conf.compRingBasePA  = rxq->comp_ring.basePA;
 509
 510                 rqd->conf.rxRingSize[0]   = rxq->cmd_ring[0].size;
 511                 rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 512                 rqd->conf.compRingSize    = rxq->comp_ring.size;
 513                 rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
 514                 rqd->status.stopped       = TRUE;
 515                 rqd->status.error         = 0;
 516                 memset(&rqd->stats, 0, sizeof(rqd->stats));
 517         }
 518
 519         /* RxMode set to 0 of VMXNET3_RXM_xxx */
 520         devRead->rxFilterConf.rxMode = 0;
 521
 522         /* Setting up feature flags */
 523         if (dev->data->dev_conf.rxmode.hw_ip_checksum)
 524                 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 525
 526         if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 527                 ret = vmxnet3_rss_configure(dev);
 528                 if (ret != VMXNET3_SUCCESS)
 529                         return ret;
 530
 531                 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
 532                 devRead->rssConfDesc.confVer = 1;
 533                 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
 534                 devRead->rssConfDesc.confPA  = hw->rss_confPA;
 535         }
 536
 537         vmxnet3_dev_vlan_offload_set(dev,
 538                              ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
 539
 540         vmxnet3_write_mac(hw, hw->perm_addr);
 541
 542         return VMXNET3_SUCCESS;
 543 }
 544
 545 /*
 546  * Configure device link speed and setup link.
 547  * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
 548  * It returns 0 on success.
 549  */
 550 static int
 551 vmxnet3_dev_start(struct rte_eth_dev *dev)
 552 {
 553         int status, ret;
 554         struct vmxnet3_hw *hw = dev->data->dev_private;
 555
 556         PMD_INIT_FUNC_TRACE();
 557
 558         ret = vmxnet3_setup_driver_shared(dev);
 559         if (ret != VMXNET3_SUCCESS)
 560                 return ret;
 561
 562         /* Exchange shared data with device */
 563         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
 564                                VMXNET3_GET_ADDR_LO(hw->sharedPA));
 565         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
 566                                VMXNET3_GET_ADDR_HI(hw->sharedPA));
 567
 568         /* Activate device by register write */
 569         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
 570         status = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 571
 572         if (status != 0) {
 573                 PMD_INIT_LOG(ERR, "Device activation: UNSUCCESSFUL");
 574                 return -1;
 575         }
 576
 577         /* Disable interrupts */
 578         vmxnet3_disable_intr(hw);
 579
 580         /*
 581          * Load RX queues with blank mbufs and update next2fill index for device
 582          * Update RxMode of the device
 583          */
 584         ret = vmxnet3_dev_rxtx_init(dev);
 585         if (ret != VMXNET3_SUCCESS) {
 586                 PMD_INIT_LOG(ERR, "Device receive init: UNSUCCESSFUL");
 587                 return ret;
 588         }
 589
 590         /* Setting proper Rx Mode and issue Rx Mode Update command */
 591         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 592
 593         /*
 594          * Don't need to handle events for now
 595          */
 596 #if PROCESS_SYS_EVENTS == 1
 597         events = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_ECR);
 598         PMD_INIT_LOG(DEBUG, "Reading events: 0x%X", events);
 599         vmxnet3_process_events(hw);
 600 #endif
 601         return status;
 602 }
 603
 604 /*
 605  * Stop device: disable rx and tx functions to allow for reconfiguring.
 606  */
 607 static void
 608 vmxnet3_dev_stop(struct rte_eth_dev *dev)
 609 {
 610         struct rte_eth_link link;
 611         struct vmxnet3_hw *hw = dev->data->dev_private;
 612
 613         PMD_INIT_FUNC_TRACE();
 614
 615         if (hw->adapter_stopped == 1) {
 616                 PMD_INIT_LOG(DEBUG, "Device already closed.");
 617                 return;
 618         }
 619
 620         /* disable interrupts */
 621         vmxnet3_disable_intr(hw);
 622
 623         /* quiesce the device first */
 624         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 625         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
 626         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
 627
 628         /* reset the device */
 629         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
 630         PMD_INIT_LOG(DEBUG, "Device reset.");
 631         hw->adapter_stopped = 0;
 632
 633         vmxnet3_dev_clear_queues(dev);
 634
 635         /* Clear recorded link status */
 636         memset(&link, 0, sizeof(link));
 637         vmxnet3_dev_atomic_write_link_status(dev, &link);
 638 }
 639
 640 /*
 641  * Reset and stop device.
 642  */
 643 static void
 644 vmxnet3_dev_close(struct rte_eth_dev *dev)
 645 {
 646         struct vmxnet3_hw *hw = dev->data->dev_private;
 647
 648         PMD_INIT_FUNC_TRACE();
 649
 650         vmxnet3_dev_stop(dev);
 651         hw->adapter_stopped = 1;
 652 }
 653
 654 static void
 655 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 656 {
 657         unsigned int i;
 658         struct vmxnet3_hw *hw = dev->data->dev_private;
 659
 660         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 661
 662         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 663         for (i = 0; i < hw->num_tx_queues; i++) {
 664                 struct UPT1_TxStats *txStats = &hw->tqd_start[i].stats;
 665
 666                 stats->q_opackets[i] = txStats->ucastPktsTxOK +
 667                         txStats->mcastPktsTxOK +
 668                         txStats->bcastPktsTxOK;
 669                 stats->q_obytes[i] = txStats->ucastBytesTxOK +
 670                         txStats->mcastBytesTxOK +
 671                         txStats->bcastBytesTxOK;
 672
 673                 stats->opackets += stats->q_opackets[i];
 674                 stats->obytes += stats->q_obytes[i];
 675                 stats->oerrors += txStats->pktsTxError +
 676                         txStats->pktsTxDiscard;
 677         }
 678
 679         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
 680         for (i = 0; i < hw->num_rx_queues; i++) {
 681                 struct UPT1_RxStats *rxStats = &hw->rqd_start[i].stats;
 682
 683                 stats->q_ipackets[i] = rxStats->ucastPktsRxOK +
 684                         rxStats->mcastPktsRxOK +
 685                         rxStats->bcastPktsRxOK;
 686
 687                 stats->q_ibytes[i] = rxStats->ucastBytesRxOK +
 688                         rxStats->mcastBytesRxOK +
 689                         rxStats->bcastBytesRxOK;
 690
 691                 stats->ipackets += stats->q_ipackets[i];
 692                 stats->ibytes += stats->q_ibytes[i];
 693
 694                 stats->q_errors[i] = rxStats->pktsRxError;
 695                 stats->ierrors += rxStats->pktsRxError;
 696                 stats->rx_nombuf += rxStats->pktsRxOutOfBuf;
 697         }
 698 }
 699
 700 static void
 701 vmxnet3_dev_info_get(__attribute__((unused))struct rte_eth_dev *dev,
 702                      struct rte_eth_dev_info *dev_info)
 703 {
 704         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
 705         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
 706         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
 707         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
 708         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
 709
 710         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 711         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
 712
 713         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 714                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
 715                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
 716                 .nb_align = 1,
 717         };
 718
 719         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 720                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
 721                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
 722                 .nb_align = 1,
 723         };
 724
 725         dev_info->rx_offload_capa =
 726                 DEV_RX_OFFLOAD_VLAN_STRIP |
 727                 DEV_RX_OFFLOAD_UDP_CKSUM |
 728                 DEV_RX_OFFLOAD_TCP_CKSUM;
 729
 730         dev_info->tx_offload_capa =
 731                 DEV_TX_OFFLOAD_VLAN_INSERT |
 732                 DEV_TX_OFFLOAD_TCP_CKSUM |
 733                 DEV_TX_OFFLOAD_UDP_CKSUM |
 734                 DEV_TX_OFFLOAD_TCP_TSO;
 735 }
 736
 737 static const uint32_t *
 738 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 739 {
 740         static const uint32_t ptypes[] = {
 741                 RTE_PTYPE_L3_IPV4_EXT,
 742                 RTE_PTYPE_L3_IPV4,
 743                 RTE_PTYPE_UNKNOWN
 744         };
 745
 746         if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
 747                 return ptypes;
 748         return NULL;
 749 }
 750
 751 static void
 752 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 753 {
 754         struct vmxnet3_hw *hw = dev->data->dev_private;
 755
 756         vmxnet3_write_mac(hw, mac_addr->addr_bytes);
 757 }
 758
 759 /* return 0 means link status changed, -1 means not changed */
 760 static int
 761 vmxnet3_dev_link_update(struct rte_eth_dev *dev, __attribute__((unused)) int wait_to_complete)
 762 {
 763         struct vmxnet3_hw *hw = dev->data->dev_private;
 764         struct rte_eth_link old, link;
 765         uint32_t ret;
 766
 767         if (dev->data->dev_started == 0)
 768                 return -1; /* Link status doesn't change for stopped dev */
 769
 770         memset(&link, 0, sizeof(link));
 771         vmxnet3_dev_atomic_read_link_status(dev, &old);
 772
 773         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
 774         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 775
 776         if (ret & 0x1) {
 777                 link.link_status = ETH_LINK_UP;
 778                 link.link_duplex = ETH_LINK_FULL_DUPLEX;
 779                 link.link_speed = ETH_SPEED_NUM_10G;
 780                 link.link_autoneg = ETH_LINK_SPEED_FIXED;
 781         }
 782
 783         vmxnet3_dev_atomic_write_link_status(dev, &link);
 784
 785         return (old.link_status == link.link_status) ? -1 : 0;
 786 }
 787
 788 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
 789 static void
 790 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set) {
 791
 792         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 793
 794         if (set)
 795                 rxConf->rxMode = rxConf->rxMode | feature;
 796         else
 797                 rxConf->rxMode = rxConf->rxMode & (~feature);
 798
 799         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
 800 }
 801
 802 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 803 static void
 804 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
 805 {
 806         struct vmxnet3_hw *hw = dev->data->dev_private;
 807         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 808
 809         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
 810         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
 811
 812         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 813                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 814 }
 815
 816 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 817 static void
 818 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
 819 {
 820         struct vmxnet3_hw *hw = dev->data->dev_private;
 821         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 822
 823         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 824         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
 825         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 826                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 827 }
 828
 829 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 830 static void
 831 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
 832 {
 833         struct vmxnet3_hw *hw = dev->data->dev_private;
 834
 835         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
 836 }
 837
 838 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 839 static void
 840 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
 841 {
 842         struct vmxnet3_hw *hw = dev->data->dev_private;
 843
 844         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
 845 }
 846
 847 /* Enable/disable filter on vlan */
 848 static int
 849 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
 850 {
 851         struct vmxnet3_hw *hw = dev->data->dev_private;
 852         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 853         uint32_t *vf_table = rxConf->vfTable;
 854
 855         /* save state for restore */
 856         if (on)
 857                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 858         else
 859                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 860
 861         /* don't change active filter if in promiscuous mode */
 862         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
 863                 return 0;
 864
 865         /* set in hardware */
 866         if (on)
 867                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
 868         else
 869                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
 870
 871         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 872                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 873         return 0;
 874 }
 875
 876 static void
 877 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 878 {
 879         struct vmxnet3_hw *hw = dev->data->dev_private;
 880         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
 881         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
 882
 883         if (mask & ETH_VLAN_STRIP_MASK) {
 884                 if (dev->data->dev_conf.rxmode.hw_vlan_strip)
 885                         devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
 886                 else
 887                         devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
 888
 889                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 890                                        VMXNET3_CMD_UPDATE_FEATURE);
 891         }
 892
 893         if (mask & ETH_VLAN_FILTER_MASK) {
 894                 if (dev->data->dev_conf.rxmode.hw_vlan_filter)
 895                         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 896                 else
 897                         memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
 898
 899                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 900                                        VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 901         }
 902 }
 903
 904 #if PROCESS_SYS_EVENTS == 1
 905 static void
 906 vmxnet3_process_events(struct vmxnet3_hw *hw)
 907 {
 908         uint32_t events = hw->shared->ecr;
 909
 910         if (!events) {
 911                 PMD_INIT_LOG(ERR, "No events to process");
 912                 return;
 913         }
 914
 915         /*
 916          * ECR bits when written with 1b are cleared. Hence write
 917          * events back to ECR so that the bits which were set will be reset.
 918          */
 919         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
 920
 921         /* Check if link state has changed */
 922         if (events & VMXNET3_ECR_LINK)
 923                 PMD_INIT_LOG(ERR,
 924                              "Process events in %s(): VMXNET3_ECR_LINK event", __func__);
 925
 926         /* Check if there is an error on xmit/recv queues */
 927         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
 928                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_QUEUE_STATUS);
 929
 930                 if (hw->tqd_start->status.stopped)
 931                         PMD_INIT_LOG(ERR, "tq error 0x%x",
 932                                      hw->tqd_start->status.error);
 933
 934                 if (hw->rqd_start->status.stopped)
 935                         PMD_INIT_LOG(ERR, "rq error 0x%x",
 936                                      hw->rqd_start->status.error);
 937
 938                 /* Reset the device */
 939                 /* Have to reset the device */
 940         }
 941
 942         if (events & VMXNET3_ECR_DIC)
 943                 PMD_INIT_LOG(ERR, "Device implementation change event.");
 944
 945         if (events & VMXNET3_ECR_DEBUG)
 946                 PMD_INIT_LOG(ERR, "Debug event generated by device.");
 947
 948 }
 949 #endif
 950
 951 static struct rte_driver rte_vmxnet3_driver = {
 952         .type = PMD_PDEV,
 953         .init = rte_vmxnet3_pmd_init,
 954 };
 955
 956 PMD_REGISTER_DRIVER(rte_vmxnet3_driver, vmxnet3);
 957 DRIVER_REGISTER_PCI_TABLE(vmxnet3, pci_id_vmxnet3_map);