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 static const struct rte_pci_id pci_id_vmxnet3_map[] = {
 104
 105 #define RTE_PCI_DEV_ID_DECL_VMXNET3(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
 106 #include "rte_pci_dev_ids.h"
 107
 108 { .vendor_id = 0, /* sentinel */ },
 109 };
 110
 111 static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
 112         .dev_configure        = vmxnet3_dev_configure,
 113         .dev_start            = vmxnet3_dev_start,
 114         .dev_stop             = vmxnet3_dev_stop,
 115         .dev_close            = vmxnet3_dev_close,
 116         .promiscuous_enable   = vmxnet3_dev_promiscuous_enable,
 117         .promiscuous_disable  = vmxnet3_dev_promiscuous_disable,
 118         .allmulticast_enable  = vmxnet3_dev_allmulticast_enable,
 119         .allmulticast_disable = vmxnet3_dev_allmulticast_disable,
 120         .link_update          = vmxnet3_dev_link_update,
 121         .stats_get            = vmxnet3_dev_stats_get,
 122         .mac_addr_set         = vmxnet3_mac_addr_set,
 123         .dev_infos_get        = vmxnet3_dev_info_get,
 124         .dev_supported_ptypes_get = vmxnet3_dev_supported_ptypes_get,
 125         .vlan_filter_set      = vmxnet3_dev_vlan_filter_set,
 126         .vlan_offload_set     = vmxnet3_dev_vlan_offload_set,
 127         .rx_queue_setup       = vmxnet3_dev_rx_queue_setup,
 128         .rx_queue_release     = vmxnet3_dev_rx_queue_release,
 129         .tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
 130         .tx_queue_release     = vmxnet3_dev_tx_queue_release,
 131 };
 132
 133 static const struct rte_memzone *
 134 gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
 135                 const char *post_string, int socket_id, uint16_t align)
 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.name, dev->data->port_id, post_string);
 142
 143         mz = rte_memzone_lookup(z_name);
 144         if (mz)
 145                 return mz;
 146
 147         return rte_memzone_reserve_aligned(z_name, size,
 148                         socket_id, 0, align);
 149 }
 150
 151 /**
 152  * Atomically reads the link status information from global
 153  * structure rte_eth_dev.
 154  *
 155  * @param dev
 156  *   - Pointer to the structure rte_eth_dev to read from.
 157  *   - Pointer to the buffer to be saved with the link status.
 158  *
 159  * @return
 160  *   - On success, zero.
 161  *   - On failure, negative value.
 162  */
 163
 164 static int
 165 vmxnet3_dev_atomic_read_link_status(struct rte_eth_dev *dev,
 166                                     struct rte_eth_link *link)
 167 {
 168         struct rte_eth_link *dst = link;
 169         struct rte_eth_link *src = &(dev->data->dev_link);
 170
 171         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 172                                 *(uint64_t *)src) == 0)
 173                 return -1;
 174
 175         return 0;
 176 }
 177
 178 /**
 179  * Atomically writes the link status information into global
 180  * structure rte_eth_dev.
 181  *
 182  * @param dev
 183  *   - Pointer to the structure rte_eth_dev to write to.
 184  *   - Pointer to the buffer to be saved with the link status.
 185  *
 186  * @return
 187  *   - On success, zero.
 188  *   - On failure, negative value.
 189  */
 190 static int
 191 vmxnet3_dev_atomic_write_link_status(struct rte_eth_dev *dev,
 192                                      struct rte_eth_link *link)
 193 {
 194         struct rte_eth_link *dst = &(dev->data->dev_link);
 195         struct rte_eth_link *src = link;
 196
 197         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 198                                         *(uint64_t *)src) == 0)
 199                 return -1;
 200
 201         return 0;
 202 }
 203
 204 /*
 205  * This function is based on vmxnet3_disable_intr()
 206  */
 207 static void
 208 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
 209 {
 210         int i;
 211
 212         PMD_INIT_FUNC_TRACE();
 213
 214         hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 215         for (i = 0; i < VMXNET3_MAX_INTRS; i++)
 216                         VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 217 }
 218
 219 /*
 220  * It returns 0 on success.
 221  */
 222 static int
 223 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 224 {
 225         struct rte_pci_device *pci_dev;
 226         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 227         uint32_t mac_hi, mac_lo, ver;
 228
 229         PMD_INIT_FUNC_TRACE();
 230
 231         eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
 232         eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 233         eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 234         pci_dev = eth_dev->pci_dev;
 235
 236         /*
 237          * for secondary processes, we don't initialize any further as primary
 238          * has already done this work.
 239          */
 240         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 241                 return 0;
 242
 243         rte_eth_copy_pci_info(eth_dev, pci_dev);
 244
 245         /* Vendor and Device ID need to be set before init of shared code */
 246         hw->device_id = pci_dev->id.device_id;
 247         hw->vendor_id = pci_dev->id.vendor_id;
 248         hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
 249         hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
 250
 251         hw->num_rx_queues = 1;
 252         hw->num_tx_queues = 1;
 253         hw->bufs_per_pkt = 1;
 254
 255         /* Check h/w version compatibility with driver. */
 256         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 257         PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 258         if (ver & 0x1)
 259                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS, 1);
 260         else {
 261                 PMD_INIT_LOG(ERR, "Incompatible h/w version, should be 0x1");
 262                 return -EIO;
 263         }
 264
 265         /* Check UPT version compatibility with driver. */
 266         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
 267         PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
 268         if (ver & 0x1)
 269                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
 270         else {
 271                 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
 272                 return -EIO;
 273         }
 274
 275         /* Getting MAC Address */
 276         mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
 277         mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
 278         memcpy(hw->perm_addr  , &mac_lo, 4);
 279         memcpy(hw->perm_addr+4, &mac_hi, 2);
 280
 281         /* Allocate memory for storing MAC addresses */
 282         eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", ETHER_ADDR_LEN *
 283                                                VMXNET3_MAX_MAC_ADDRS, 0);
 284         if (eth_dev->data->mac_addrs == NULL) {
 285                 PMD_INIT_LOG(ERR,
 286                              "Failed to allocate %d bytes needed to store MAC addresses",
 287                              ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
 288                 return -ENOMEM;
 289         }
 290         /* Copy the permanent MAC address */
 291         ether_addr_copy((struct ether_addr *) hw->perm_addr,
 292                         &eth_dev->data->mac_addrs[0]);
 293
 294         PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 295                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 296                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 297
 298         /* Put device in Quiesce Mode */
 299         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 300
 301         /* allow untagged pkts */
 302         VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 303
 304         return 0;
 305 }
 306
 307 static int
 308 eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
 309 {
 310         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 311
 312         PMD_INIT_FUNC_TRACE();
 313
 314         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 315                 return 0;
 316
 317         if (hw->adapter_stopped == 0)
 318                 vmxnet3_dev_close(eth_dev);
 319
 320         eth_dev->dev_ops = NULL;
 321         eth_dev->rx_pkt_burst = NULL;
 322         eth_dev->tx_pkt_burst = NULL;
 323
 324         rte_free(eth_dev->data->mac_addrs);
 325         eth_dev->data->mac_addrs = NULL;
 326
 327         return 0;
 328 }
 329
 330 static struct eth_driver rte_vmxnet3_pmd = {
 331         .pci_drv = {
 332                 .name = "rte_vmxnet3_pmd",
 333                 .id_table = pci_id_vmxnet3_map,
 334                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_DETACHABLE,
 335         },
 336         .eth_dev_init = eth_vmxnet3_dev_init,
 337         .eth_dev_uninit = eth_vmxnet3_dev_uninit,
 338         .dev_private_size = sizeof(struct vmxnet3_hw),
 339 };
 340
 341 /*
 342  * Driver initialization routine.
 343  * Invoked once at EAL init time.
 344  * Register itself as the [Poll Mode] Driver of Virtual PCI VMXNET3 devices.
 345  */
 346 static int
 347 rte_vmxnet3_pmd_init(const char *name __rte_unused, const char *param __rte_unused)
 348 {
 349         PMD_INIT_FUNC_TRACE();
 350
 351         rte_eth_driver_register(&rte_vmxnet3_pmd);
 352         return 0;
 353 }
 354
 355 static int
 356 vmxnet3_dev_configure(struct rte_eth_dev *dev)
 357 {
 358         const struct rte_memzone *mz;
 359         struct vmxnet3_hw *hw = dev->data->dev_private;
 360         size_t size;
 361
 362         PMD_INIT_FUNC_TRACE();
 363
 364         if (dev->data->nb_rx_queues > UINT8_MAX ||
 365             dev->data->nb_tx_queues > UINT8_MAX)
 366                 return -EINVAL;
 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);
 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         mz = gpa_zone_reserve(dev, size, "queuedesc",
 398                               rte_socket_id(), VMXNET3_QUEUE_DESC_ALIGN);
 399         if (mz == NULL) {
 400                 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
 401                 return -ENOMEM;
 402         }
 403         memset(mz->addr, 0, mz->len);
 404
 405         hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
 406         hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
 407
 408         hw->queueDescPA = mz->phys_addr;
 409         hw->queue_desc_len = (uint16_t)size;
 410
 411         if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 412
 413                 /* Allocate memory structure for UPT1_RSSConf and configure */
 414                 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf), "rss_conf",
 415                                       rte_socket_id(), RTE_CACHE_LINE_SIZE);
 416                 if (mz == NULL) {
 417                         PMD_INIT_LOG(ERR,
 418                                      "ERROR: Creating rss_conf structure zone");
 419                         return -ENOMEM;
 420                 }
 421                 memset(mz->addr, 0, mz->len);
 422
 423                 hw->rss_conf = mz->addr;
 424                 hw->rss_confPA = mz->phys_addr;
 425         }
 426
 427         return 0;
 428 }
 429
 430 static void
 431 vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
 432 {
 433         uint32_t val;
 434
 435         PMD_INIT_LOG(DEBUG,
 436                      "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 437                      addr[0], addr[1], addr[2],
 438                      addr[3], addr[4], addr[5]);
 439
 440         val = *(const uint32_t *)addr;
 441         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
 442
 443         val = (addr[5] << 8) | addr[4];
 444         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 445 }
 446
 447 static int
 448 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 449 {
 450         struct rte_eth_conf port_conf = dev->data->dev_conf;
 451         struct vmxnet3_hw *hw = dev->data->dev_private;
 452         uint32_t mtu = dev->data->mtu;
 453         Vmxnet3_DriverShared *shared = hw->shared;
 454         Vmxnet3_DSDevRead *devRead = &shared->devRead;
 455         uint32_t i;
 456         int ret;
 457
 458         shared->magic = VMXNET3_REV1_MAGIC;
 459         devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
 460
 461         /* Setting up Guest OS information */
 462         devRead->misc.driverInfo.gos.gosBits   = sizeof(void *) == 4 ?
 463                 VMXNET3_GOS_BITS_32 :
 464                 VMXNET3_GOS_BITS_64;
 465         devRead->misc.driverInfo.gos.gosType   = VMXNET3_GOS_TYPE_LINUX;
 466         devRead->misc.driverInfo.vmxnet3RevSpt = 1;
 467         devRead->misc.driverInfo.uptVerSpt     = 1;
 468
 469         devRead->misc.mtu = rte_le_to_cpu_32(mtu);
 470         devRead->misc.queueDescPA  = hw->queueDescPA;
 471         devRead->misc.queueDescLen = hw->queue_desc_len;
 472         devRead->misc.numTxQueues  = hw->num_tx_queues;
 473         devRead->misc.numRxQueues  = hw->num_rx_queues;
 474
 475         /*
 476          * Set number of interrupts to 1
 477          * PMD disables all the interrupts but this is MUST to activate device
 478          * It needs at least one interrupt for link events to handle
 479          * So we'll disable it later after device activation if needed
 480          */
 481         devRead->intrConf.numIntrs = 1;
 482         devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 483
 484         for (i = 0; i < hw->num_tx_queues; i++) {
 485                 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
 486                 vmxnet3_tx_queue_t *txq  = dev->data->tx_queues[i];
 487
 488                 tqd->ctrl.txNumDeferred  = 0;
 489                 tqd->ctrl.txThreshold    = 1;
 490                 tqd->conf.txRingBasePA   = txq->cmd_ring.basePA;
 491                 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
 492                 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
 493
 494                 tqd->conf.txRingSize   = txq->cmd_ring.size;
 495                 tqd->conf.compRingSize = txq->comp_ring.size;
 496                 tqd->conf.dataRingSize = txq->data_ring.size;
 497                 tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
 498                 tqd->status.stopped    = TRUE;
 499                 tqd->status.error      = 0;
 500                 memset(&tqd->stats, 0, sizeof(tqd->stats));
 501         }
 502
 503         for (i = 0; i < hw->num_rx_queues; i++) {
 504                 Vmxnet3_RxQueueDesc *rqd  = &hw->rqd_start[i];
 505                 vmxnet3_rx_queue_t *rxq   = dev->data->rx_queues[i];
 506
 507                 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
 508                 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
 509                 rqd->conf.compRingBasePA  = rxq->comp_ring.basePA;
 510
 511                 rqd->conf.rxRingSize[0]   = rxq->cmd_ring[0].size;
 512                 rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 513                 rqd->conf.compRingSize    = rxq->comp_ring.size;
 514                 rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
 515                 rqd->status.stopped       = TRUE;
 516                 rqd->status.error         = 0;
 517                 memset(&rqd->stats, 0, sizeof(rqd->stats));
 518         }
 519
 520         /* RxMode set to 0 of VMXNET3_RXM_xxx */
 521         devRead->rxFilterConf.rxMode = 0;
 522
 523         /* Setting up feature flags */
 524         if (dev->data->dev_conf.rxmode.hw_ip_checksum)
 525                 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 526
 527         if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 528                 ret = vmxnet3_rss_configure(dev);
 529                 if (ret != VMXNET3_SUCCESS)
 530                         return ret;
 531
 532                 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
 533                 devRead->rssConfDesc.confVer = 1;
 534                 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
 535                 devRead->rssConfDesc.confPA  = hw->rss_confPA;
 536         }
 537
 538         vmxnet3_dev_vlan_offload_set(dev,
 539                              ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
 540
 541         vmxnet3_write_mac(hw, hw->perm_addr);
 542
 543         return VMXNET3_SUCCESS;
 544 }
 545
 546 /*
 547  * Configure device link speed and setup link.
 548  * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
 549  * It returns 0 on success.
 550  */
 551 static int
 552 vmxnet3_dev_start(struct rte_eth_dev *dev)
 553 {
 554         int status, ret;
 555         struct vmxnet3_hw *hw = dev->data->dev_private;
 556
 557         PMD_INIT_FUNC_TRACE();
 558
 559         ret = vmxnet3_setup_driver_shared(dev);
 560         if (ret != VMXNET3_SUCCESS)
 561                 return ret;
 562
 563         /* Exchange shared data with device */
 564         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
 565                                VMXNET3_GET_ADDR_LO(hw->sharedPA));
 566         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
 567                                VMXNET3_GET_ADDR_HI(hw->sharedPA));
 568
 569         /* Activate device by register write */
 570         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
 571         status = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 572
 573         if (status != 0) {
 574                 PMD_INIT_LOG(ERR, "Device activation: UNSUCCESSFUL");
 575                 return -1;
 576         }
 577
 578         /* Disable interrupts */
 579         vmxnet3_disable_intr(hw);
 580
 581         /*
 582          * Load RX queues with blank mbufs and update next2fill index for device
 583          * Update RxMode of the device
 584          */
 585         ret = vmxnet3_dev_rxtx_init(dev);
 586         if (ret != VMXNET3_SUCCESS) {
 587                 PMD_INIT_LOG(ERR, "Device receive init: UNSUCCESSFUL");
 588                 return ret;
 589         }
 590
 591         /* Setting proper Rx Mode and issue Rx Mode Update command */
 592         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 593
 594         /*
 595          * Don't need to handle events for now
 596          */
 597 #if PROCESS_SYS_EVENTS == 1
 598         events = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_ECR);
 599         PMD_INIT_LOG(DEBUG, "Reading events: 0x%X", events);
 600         vmxnet3_process_events(hw);
 601 #endif
 602         return status;
 603 }
 604
 605 /*
 606  * Stop device: disable rx and tx functions to allow for reconfiguring.
 607  */
 608 static void
 609 vmxnet3_dev_stop(struct rte_eth_dev *dev)
 610 {
 611         struct rte_eth_link link;
 612         struct vmxnet3_hw *hw = dev->data->dev_private;
 613
 614         PMD_INIT_FUNC_TRACE();
 615
 616         if (hw->adapter_stopped == 1) {
 617                 PMD_INIT_LOG(DEBUG, "Device already closed.");
 618                 return;
 619         }
 620
 621         /* disable interrupts */
 622         vmxnet3_disable_intr(hw);
 623
 624         /* quiesce the device first */
 625         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 626         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
 627         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
 628
 629         /* reset the device */
 630         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
 631         PMD_INIT_LOG(DEBUG, "Device reset.");
 632         hw->adapter_stopped = 0;
 633
 634         vmxnet3_dev_clear_queues(dev);
 635
 636         /* Clear recorded link status */
 637         memset(&link, 0, sizeof(link));
 638         vmxnet3_dev_atomic_write_link_status(dev, &link);
 639 }
 640
 641 /*
 642  * Reset and stop device.
 643  */
 644 static void
 645 vmxnet3_dev_close(struct rte_eth_dev *dev)
 646 {
 647         struct vmxnet3_hw *hw = dev->data->dev_private;
 648
 649         PMD_INIT_FUNC_TRACE();
 650
 651         vmxnet3_dev_stop(dev);
 652         hw->adapter_stopped = 1;
 653 }
 654
 655 static void
 656 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 657 {
 658         unsigned int i;
 659         struct vmxnet3_hw *hw = dev->data->dev_private;
 660
 661         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 662
 663         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 664         for (i = 0; i < hw->num_tx_queues; i++) {
 665                 struct UPT1_TxStats *txStats = &hw->tqd_start[i].stats;
 666
 667                 stats->q_opackets[i] = txStats->ucastPktsTxOK +
 668                         txStats->mcastPktsTxOK +
 669                         txStats->bcastPktsTxOK;
 670                 stats->q_obytes[i] = txStats->ucastBytesTxOK +
 671                         txStats->mcastBytesTxOK +
 672                         txStats->bcastBytesTxOK;
 673
 674                 stats->opackets += stats->q_opackets[i];
 675                 stats->obytes += stats->q_obytes[i];
 676                 stats->oerrors += txStats->pktsTxError +
 677                         txStats->pktsTxDiscard;
 678         }
 679
 680         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
 681         for (i = 0; i < hw->num_rx_queues; i++) {
 682                 struct UPT1_RxStats *rxStats = &hw->rqd_start[i].stats;
 683
 684                 stats->q_ipackets[i] = rxStats->ucastPktsRxOK +
 685                         rxStats->mcastPktsRxOK +
 686                         rxStats->bcastPktsRxOK;
 687
 688                 stats->q_ibytes[i] = rxStats->ucastBytesRxOK +
 689                         rxStats->mcastBytesRxOK +
 690                         rxStats->bcastBytesRxOK;
 691
 692                 stats->ipackets += stats->q_ipackets[i];
 693                 stats->ibytes += stats->q_ibytes[i];
 694
 695                 stats->q_errors[i] = rxStats->pktsRxError;
 696                 stats->ierrors += rxStats->pktsRxError;
 697                 stats->rx_nombuf += rxStats->pktsRxOutOfBuf;
 698         }
 699 }
 700
 701 static void
 702 vmxnet3_dev_info_get(__attribute__((unused))struct rte_eth_dev *dev,
 703                      struct rte_eth_dev_info *dev_info)
 704 {
 705         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
 706         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
 707         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
 708         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
 709         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
 710
 711         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOXSUMSCTP;
 712         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
 713
 714         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 715                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
 716                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
 717                 .nb_align = 1,
 718         };
 719
 720         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 721                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
 722                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
 723                 .nb_align = 1,
 724         };
 725
 726         dev_info->rx_offload_capa =
 727                 DEV_RX_OFFLOAD_VLAN_STRIP |
 728                 DEV_RX_OFFLOAD_UDP_CKSUM |
 729                 DEV_RX_OFFLOAD_TCP_CKSUM;
 730
 731         dev_info->tx_offload_capa =
 732                 DEV_TX_OFFLOAD_VLAN_INSERT |
 733                 DEV_TX_OFFLOAD_TCP_CKSUM |
 734                 DEV_TX_OFFLOAD_UDP_CKSUM |
 735                 DEV_TX_OFFLOAD_TCP_TSO;
 736 }
 737
 738 static const uint32_t *
 739 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
 740 {
 741         static const uint32_t ptypes[] = {
 742                 RTE_PTYPE_L3_IPV4_EXT,
 743                 RTE_PTYPE_L3_IPV4,
 744                 RTE_PTYPE_UNKNOWN
 745         };
 746
 747         if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
 748                 return ptypes;
 749         return NULL;
 750 }
 751
 752 static void
 753 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
 754 {
 755         struct vmxnet3_hw *hw = dev->data->dev_private;
 756
 757         vmxnet3_write_mac(hw, mac_addr->addr_bytes);
 758 }
 759
 760 /* return 0 means link status changed, -1 means not changed */
 761 static int
 762 vmxnet3_dev_link_update(struct rte_eth_dev *dev, __attribute__((unused)) int wait_to_complete)
 763 {
 764         struct vmxnet3_hw *hw = dev->data->dev_private;
 765         struct rte_eth_link old, link;
 766         uint32_t ret;
 767
 768         if (dev->data->dev_started == 0)
 769                 return -1; /* Link status doesn't change for stopped dev */
 770
 771         memset(&link, 0, sizeof(link));
 772         vmxnet3_dev_atomic_read_link_status(dev, &old);
 773
 774         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
 775         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 776
 777         if (ret & 0x1) {
 778                 link.link_status = ETH_LINK_UP;
 779                 link.link_duplex = ETH_LINK_FULL_DUPLEX;
 780                 link.link_speed = ETH_SPEED_NUM_10G;
 781                 link.link_autoneg = ETH_LINK_SPEED_FIXED;
 782         }
 783
 784         vmxnet3_dev_atomic_write_link_status(dev, &link);
 785
 786         return (old.link_status == link.link_status) ? -1 : 0;
 787 }
 788
 789 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
 790 static void
 791 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set) {
 792
 793         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 794
 795         if (set)
 796                 rxConf->rxMode = rxConf->rxMode | feature;
 797         else
 798                 rxConf->rxMode = rxConf->rxMode & (~feature);
 799
 800         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
 801 }
 802
 803 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 804 static void
 805 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
 806 {
 807         struct vmxnet3_hw *hw = dev->data->dev_private;
 808         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 809
 810         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
 811         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
 812
 813         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 814                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 815 }
 816
 817 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 818 static void
 819 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
 820 {
 821         struct vmxnet3_hw *hw = dev->data->dev_private;
 822         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 823
 824         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 825         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
 826         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 827                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 828 }
 829
 830 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 831 static void
 832 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
 833 {
 834         struct vmxnet3_hw *hw = dev->data->dev_private;
 835
 836         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
 837 }
 838
 839 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 840 static void
 841 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
 842 {
 843         struct vmxnet3_hw *hw = dev->data->dev_private;
 844
 845         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
 846 }
 847
 848 /* Enable/disable filter on vlan */
 849 static int
 850 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
 851 {
 852         struct vmxnet3_hw *hw = dev->data->dev_private;
 853         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 854         uint32_t *vf_table = rxConf->vfTable;
 855
 856         /* save state for restore */
 857         if (on)
 858                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 859         else
 860                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 861
 862         /* don't change active filter if in promiscuous mode */
 863         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
 864                 return 0;
 865
 866         /* set in hardware */
 867         if (on)
 868                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
 869         else
 870                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
 871
 872         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 873                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 874         return 0;
 875 }
 876
 877 static void
 878 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 879 {
 880         struct vmxnet3_hw *hw = dev->data->dev_private;
 881         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
 882         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
 883
 884         if (mask & ETH_VLAN_STRIP_MASK) {
 885                 if (dev->data->dev_conf.rxmode.hw_vlan_strip)
 886                         devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
 887                 else
 888                         devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
 889
 890                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 891                                        VMXNET3_CMD_UPDATE_FEATURE);
 892         }
 893
 894         if (mask & ETH_VLAN_FILTER_MASK) {
 895                 if (dev->data->dev_conf.rxmode.hw_vlan_filter)
 896                         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 897                 else
 898                         memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
 899
 900                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 901                                        VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 902         }
 903 }
 904
 905 #if PROCESS_SYS_EVENTS == 1
 906 static void
 907 vmxnet3_process_events(struct vmxnet3_hw *hw)
 908 {
 909         uint32_t events = hw->shared->ecr;
 910
 911         if (!events) {
 912                 PMD_INIT_LOG(ERR, "No events to process");
 913                 return;
 914         }
 915
 916         /*
 917          * ECR bits when written with 1b are cleared. Hence write
 918          * events back to ECR so that the bits which were set will be reset.
 919          */
 920         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
 921
 922         /* Check if link state has changed */
 923         if (events & VMXNET3_ECR_LINK)
 924                 PMD_INIT_LOG(ERR,
 925                              "Process events in %s(): VMXNET3_ECR_LINK event", __func__);
 926
 927         /* Check if there is an error on xmit/recv queues */
 928         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
 929                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_QUEUE_STATUS);
 930
 931                 if (hw->tqd_start->status.stopped)
 932                         PMD_INIT_LOG(ERR, "tq error 0x%x",
 933                                      hw->tqd_start->status.error);
 934
 935                 if (hw->rqd_start->status.stopped)
 936                         PMD_INIT_LOG(ERR, "rq error 0x%x",
 937                                      hw->rqd_start->status.error);
 938
 939                 /* Reset the device */
 940                 /* Have to reset the device */
 941         }
 942
 943         if (events & VMXNET3_ECR_DIC)
 944                 PMD_INIT_LOG(ERR, "Device implementation change event.");
 945
 946         if (events & VMXNET3_ECR_DEBUG)
 947                 PMD_INIT_LOG(ERR, "Debug event generated by device.");
 948
 949 }
 950 #endif
 951
 952 static struct rte_driver rte_vmxnet3_driver = {
 953         .type = PMD_PDEV,
 954         .init = rte_vmxnet3_pmd_init,
 955 };
 956
 957 PMD_REGISTER_DRIVER(rte_vmxnet3_driver);