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 vmxnet3_dev_configure(struct rte_eth_dev *dev);
  74 static int vmxnet3_dev_start(struct rte_eth_dev *dev);
  75 static void vmxnet3_dev_stop(struct rte_eth_dev *dev);
  76 static void vmxnet3_dev_close(struct rte_eth_dev *dev);
  77 static void vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set);
  78 static void vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev);
  79 static void vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev);
  80 static void vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev);
  81 static void vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev);
  82 static int vmxnet3_dev_link_update(struct rte_eth_dev *dev,
  83                                 int wait_to_complete);
  84 static void vmxnet3_dev_stats_get(struct rte_eth_dev *dev,
  85                                 struct rte_eth_stats *stats);
  86 static void vmxnet3_dev_info_get(struct rte_eth_dev *dev,
  87                                 struct rte_eth_dev_info *dev_info);
  88 static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
  89                                        uint16_t vid, int on);
  90 static void vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
  91 static void vmxnet3_dev_vlan_offload_set_clear(struct rte_eth_dev *dev,
  92                                                 int mask, int clear);
  93
  94 #if PROCESS_SYS_EVENTS == 1
  95 static void vmxnet3_process_events(struct vmxnet3_hw *);
  96 #endif
  97 /*
  98  * The set of PCI devices this driver supports
  99  */
 100 static const struct rte_pci_id pci_id_vmxnet3_map[] = {
 101
 102 #define RTE_PCI_DEV_ID_DECL_VMXNET3(vend, dev) {RTE_PCI_DEVICE(vend, dev)},
 103 #include "rte_pci_dev_ids.h"
 104
 105 { .vendor_id = 0, /* sentinel */ },
 106 };
 107
 108 static const struct eth_dev_ops vmxnet3_eth_dev_ops = {
 109         .dev_configure        = vmxnet3_dev_configure,
 110         .dev_start            = vmxnet3_dev_start,
 111         .dev_stop             = vmxnet3_dev_stop,
 112         .dev_close            = vmxnet3_dev_close,
 113         .promiscuous_enable   = vmxnet3_dev_promiscuous_enable,
 114         .promiscuous_disable  = vmxnet3_dev_promiscuous_disable,
 115         .allmulticast_enable  = vmxnet3_dev_allmulticast_enable,
 116         .allmulticast_disable = vmxnet3_dev_allmulticast_disable,
 117         .link_update          = vmxnet3_dev_link_update,
 118         .stats_get            = vmxnet3_dev_stats_get,
 119         .dev_infos_get        = vmxnet3_dev_info_get,
 120         .vlan_filter_set      = vmxnet3_dev_vlan_filter_set,
 121         .vlan_offload_set     = vmxnet3_dev_vlan_offload_set,
 122         .rx_queue_setup       = vmxnet3_dev_rx_queue_setup,
 123         .rx_queue_release     = vmxnet3_dev_rx_queue_release,
 124         .tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
 125         .tx_queue_release     = vmxnet3_dev_tx_queue_release,
 126 };
 127
 128 static const struct rte_memzone *
 129 gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
 130                 const char *post_string, int socket_id, uint16_t align)
 131 {
 132         char z_name[RTE_MEMZONE_NAMESIZE];
 133         const struct rte_memzone *mz;
 134
 135         snprintf(z_name, sizeof(z_name), "%s_%d_%s",
 136                                         dev->driver->pci_drv.name, dev->data->port_id, post_string);
 137
 138         mz = rte_memzone_lookup(z_name);
 139         if (mz)
 140                 return mz;
 141
 142         return rte_memzone_reserve_aligned(z_name, size,
 143                         socket_id, 0, align);
 144 }
 145
 146 /**
 147  * Atomically reads the link status information from global
 148  * structure rte_eth_dev.
 149  *
 150  * @param dev
 151  *   - Pointer to the structure rte_eth_dev to read from.
 152  *   - Pointer to the buffer to be saved with the link status.
 153  *
 154  * @return
 155  *   - On success, zero.
 156  *   - On failure, negative value.
 157  */
 158
 159 static int
 160 vmxnet3_dev_atomic_read_link_status(struct rte_eth_dev *dev,
 161                                     struct rte_eth_link *link)
 162 {
 163         struct rte_eth_link *dst = link;
 164         struct rte_eth_link *src = &(dev->data->dev_link);
 165
 166         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 167                                 *(uint64_t *)src) == 0)
 168                 return -1;
 169
 170         return 0;
 171 }
 172
 173 /**
 174  * Atomically writes the link status information into global
 175  * structure rte_eth_dev.
 176  *
 177  * @param dev
 178  *   - Pointer to the structure rte_eth_dev to write to.
 179  *   - Pointer to the buffer to be saved with the link status.
 180  *
 181  * @return
 182  *   - On success, zero.
 183  *   - On failure, negative value.
 184  */
 185 static int
 186 vmxnet3_dev_atomic_write_link_status(struct rte_eth_dev *dev,
 187                                      struct rte_eth_link *link)
 188 {
 189         struct rte_eth_link *dst = &(dev->data->dev_link);
 190         struct rte_eth_link *src = link;
 191
 192         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 193                                         *(uint64_t *)src) == 0)
 194                 return -1;
 195
 196         return 0;
 197 }
 198
 199 /*
 200  * This function is based on vmxnet3_disable_intr()
 201  */
 202 static void
 203 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
 204 {
 205         int i;
 206
 207         PMD_INIT_FUNC_TRACE();
 208
 209         hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 210         for (i = 0; i < VMXNET3_MAX_INTRS; i++)
 211                         VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 212 }
 213
 214 /*
 215  * It returns 0 on success.
 216  */
 217 static int
 218 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 219 {
 220         struct rte_pci_device *pci_dev;
 221         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 222         uint32_t mac_hi, mac_lo, ver;
 223
 224         PMD_INIT_FUNC_TRACE();
 225
 226         eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
 227         eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 228         eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 229         pci_dev = eth_dev->pci_dev;
 230
 231         /*
 232          * for secondary processes, we don't initialize any further as primary
 233          * has already done this work.
 234          */
 235         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 236                 return 0;
 237
 238         /* Vendor and Device ID need to be set before init of shared code */
 239         hw->device_id = pci_dev->id.device_id;
 240         hw->vendor_id = pci_dev->id.vendor_id;
 241         hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
 242         hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
 243
 244         hw->num_rx_queues = 1;
 245         hw->num_tx_queues = 1;
 246         hw->bufs_per_pkt = 1;
 247
 248         /* Check h/w version compatibility with driver. */
 249         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 250         PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 251         if (ver & 0x1)
 252                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS, 1);
 253         else {
 254                 PMD_INIT_LOG(ERR, "Incompatible h/w version, should be 0x1");
 255                 return -EIO;
 256         }
 257
 258         /* Check UPT version compatibility with driver. */
 259         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
 260         PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
 261         if (ver & 0x1)
 262                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
 263         else {
 264                 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
 265                 return -EIO;
 266         }
 267
 268         /* Getting MAC Address */
 269         mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
 270         mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
 271         memcpy(hw->perm_addr  , &mac_lo, 4);
 272         memcpy(hw->perm_addr+4, &mac_hi, 2);
 273
 274         /* Allocate memory for storing MAC addresses */
 275         eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", ETHER_ADDR_LEN *
 276                                                VMXNET3_MAX_MAC_ADDRS, 0);
 277         if (eth_dev->data->mac_addrs == NULL) {
 278                 PMD_INIT_LOG(ERR,
 279                              "Failed to allocate %d bytes needed to store MAC addresses",
 280                              ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
 281                 return -ENOMEM;
 282         }
 283         /* Copy the permanent MAC address */
 284         ether_addr_copy((struct ether_addr *) hw->perm_addr,
 285                         &eth_dev->data->mac_addrs[0]);
 286
 287         PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 288                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 289                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 290
 291         /* Put device in Quiesce Mode */
 292         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 293
 294         return 0;
 295 }
 296
 297 static struct eth_driver rte_vmxnet3_pmd = {
 298         .pci_drv = {
 299                 .name = "rte_vmxnet3_pmd",
 300                 .id_table = pci_id_vmxnet3_map,
 301                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 302         },
 303         .eth_dev_init = eth_vmxnet3_dev_init,
 304         .dev_private_size = sizeof(struct vmxnet3_hw),
 305 };
 306
 307 /*
 308  * Driver initialization routine.
 309  * Invoked once at EAL init time.
 310  * Register itself as the [Poll Mode] Driver of Virtual PCI VMXNET3 devices.
 311  */
 312 static int
 313 rte_vmxnet3_pmd_init(const char *name __rte_unused, const char *param __rte_unused)
 314 {
 315         PMD_INIT_FUNC_TRACE();
 316
 317         rte_eth_driver_register(&rte_vmxnet3_pmd);
 318         return 0;
 319 }
 320
 321 static int
 322 vmxnet3_dev_configure(struct rte_eth_dev *dev)
 323 {
 324         const struct rte_memzone *mz;
 325         struct vmxnet3_hw *hw = dev->data->dev_private;
 326         size_t size;
 327
 328         PMD_INIT_FUNC_TRACE();
 329
 330         if (dev->data->nb_rx_queues > UINT8_MAX ||
 331             dev->data->nb_tx_queues > UINT8_MAX)
 332                 return -EINVAL;
 333
 334         size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
 335                 dev->data->nb_tx_queues * sizeof(struct Vmxnet3_RxQueueDesc);
 336
 337         if (size > UINT16_MAX)
 338                 return -EINVAL;
 339
 340         hw->num_rx_queues = (uint8_t)dev->data->nb_rx_queues;
 341         hw->num_tx_queues = (uint8_t)dev->data->nb_tx_queues;
 342
 343         /*
 344          * Allocate a memzone for Vmxnet3_DriverShared - Vmxnet3_DSDevRead
 345          * on current socket
 346          */
 347         mz = gpa_zone_reserve(dev, sizeof(struct Vmxnet3_DriverShared),
 348                               "shared", rte_socket_id(), 8);
 349
 350         if (mz == NULL) {
 351                 PMD_INIT_LOG(ERR, "ERROR: Creating shared zone");
 352                 return -ENOMEM;
 353         }
 354         memset(mz->addr, 0, mz->len);
 355
 356         hw->shared = mz->addr;
 357         hw->sharedPA = mz->phys_addr;
 358
 359         /*
 360          * Allocate a memzone for Vmxnet3_RxQueueDesc - Vmxnet3_TxQueueDesc
 361          * on current socket
 362          */
 363         mz = gpa_zone_reserve(dev, size, "queuedesc",
 364                               rte_socket_id(), VMXNET3_QUEUE_DESC_ALIGN);
 365         if (mz == NULL) {
 366                 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
 367                 return -ENOMEM;
 368         }
 369         memset(mz->addr, 0, mz->len);
 370
 371         hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
 372         hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
 373
 374         hw->queueDescPA = mz->phys_addr;
 375         hw->queue_desc_len = (uint16_t)size;
 376
 377         if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 378
 379                 /* Allocate memory structure for UPT1_RSSConf and configure */
 380                 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf), "rss_conf",
 381                                       rte_socket_id(), RTE_CACHE_LINE_SIZE);
 382                 if (mz == NULL) {
 383                         PMD_INIT_LOG(ERR,
 384                                      "ERROR: Creating rss_conf structure zone");
 385                         return -ENOMEM;
 386                 }
 387                 memset(mz->addr, 0, mz->len);
 388
 389                 hw->rss_conf = mz->addr;
 390                 hw->rss_confPA = mz->phys_addr;
 391         }
 392
 393         return 0;
 394 }
 395
 396 static int
 397 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 398 {
 399         struct rte_eth_conf port_conf = dev->data->dev_conf;
 400         struct vmxnet3_hw *hw = dev->data->dev_private;
 401         Vmxnet3_DriverShared *shared = hw->shared;
 402         Vmxnet3_DSDevRead *devRead = &shared->devRead;
 403         uint32_t *mac_ptr;
 404         uint32_t val, i;
 405         int ret, mask;
 406
 407         shared->magic = VMXNET3_REV1_MAGIC;
 408         devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
 409
 410         /* Setting up Guest OS information */
 411         devRead->misc.driverInfo.gos.gosBits   = sizeof(void *) == 4 ?
 412                 VMXNET3_GOS_BITS_32 :
 413                 VMXNET3_GOS_BITS_64;
 414         devRead->misc.driverInfo.gos.gosType   = VMXNET3_GOS_TYPE_LINUX;
 415         devRead->misc.driverInfo.vmxnet3RevSpt = 1;
 416         devRead->misc.driverInfo.uptVerSpt     = 1;
 417
 418         devRead->misc.mtu = rte_le_to_cpu_32(dev->data->mtu);
 419         devRead->misc.queueDescPA  = hw->queueDescPA;
 420         devRead->misc.queueDescLen = hw->queue_desc_len;
 421         devRead->misc.numTxQueues  = hw->num_tx_queues;
 422         devRead->misc.numRxQueues  = hw->num_rx_queues;
 423
 424         /*
 425          * Set number of interrupts to 1
 426          * PMD disables all the interrupts but this is MUST to activate device
 427          * It needs at least one interrupt for link events to handle
 428          * So we'll disable it later after device activation if needed
 429          */
 430         devRead->intrConf.numIntrs = 1;
 431         devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 432
 433         for (i = 0; i < hw->num_tx_queues; i++) {
 434                 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
 435                 vmxnet3_tx_queue_t *txq  = dev->data->tx_queues[i];
 436
 437                 tqd->ctrl.txNumDeferred  = 0;
 438                 tqd->ctrl.txThreshold    = 1;
 439                 tqd->conf.txRingBasePA   = txq->cmd_ring.basePA;
 440                 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
 441                 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
 442
 443                 tqd->conf.txRingSize   = txq->cmd_ring.size;
 444                 tqd->conf.compRingSize = txq->comp_ring.size;
 445                 tqd->conf.dataRingSize = txq->data_ring.size;
 446                 tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
 447                 tqd->status.stopped    = TRUE;
 448                 tqd->status.error      = 0;
 449                 memset(&tqd->stats, 0, sizeof(tqd->stats));
 450         }
 451
 452         for (i = 0; i < hw->num_rx_queues; i++) {
 453                 Vmxnet3_RxQueueDesc *rqd  = &hw->rqd_start[i];
 454                 vmxnet3_rx_queue_t *rxq   = dev->data->rx_queues[i];
 455
 456                 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
 457                 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
 458                 rqd->conf.compRingBasePA  = rxq->comp_ring.basePA;
 459
 460                 rqd->conf.rxRingSize[0]   = rxq->cmd_ring[0].size;
 461                 rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 462                 rqd->conf.compRingSize    = rxq->comp_ring.size;
 463                 rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
 464                 rqd->status.stopped       = TRUE;
 465                 rqd->status.error         = 0;
 466                 memset(&rqd->stats, 0, sizeof(rqd->stats));
 467         }
 468
 469         /* RxMode set to 0 of VMXNET3_RXM_xxx */
 470         devRead->rxFilterConf.rxMode = 0;
 471
 472         /* Setting up feature flags */
 473         if (dev->data->dev_conf.rxmode.hw_ip_checksum)
 474                 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 475
 476         if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 477                 ret = vmxnet3_rss_configure(dev);
 478                 if (ret != VMXNET3_SUCCESS)
 479                         return ret;
 480
 481                 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
 482                 devRead->rssConfDesc.confVer = 1;
 483                 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
 484                 devRead->rssConfDesc.confPA  = hw->rss_confPA;
 485         }
 486
 487         mask = 0;
 488         if (dev->data->dev_conf.rxmode.hw_vlan_strip)
 489                 mask |= ETH_VLAN_STRIP_MASK;
 490
 491         if (dev->data->dev_conf.rxmode.hw_vlan_filter)
 492                 mask |= ETH_VLAN_FILTER_MASK;
 493
 494         vmxnet3_dev_vlan_offload_set_clear(dev, mask, 1);
 495
 496         PMD_INIT_LOG(DEBUG,
 497                      "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 498                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 499                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 500
 501         /* Write MAC Address back to device */
 502         mac_ptr = (uint32_t *)hw->perm_addr;
 503         val = *mac_ptr;
 504         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
 505
 506         val = (hw->perm_addr[5] << 8) | hw->perm_addr[4];
 507         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 508
 509         return VMXNET3_SUCCESS;
 510 }
 511
 512 /*
 513  * Configure device link speed and setup link.
 514  * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
 515  * It returns 0 on success.
 516  */
 517 static int
 518 vmxnet3_dev_start(struct rte_eth_dev *dev)
 519 {
 520         int status, ret;
 521         struct vmxnet3_hw *hw = dev->data->dev_private;
 522
 523         PMD_INIT_FUNC_TRACE();
 524
 525         ret = vmxnet3_setup_driver_shared(dev);
 526         if (ret != VMXNET3_SUCCESS)
 527                 return ret;
 528
 529         /* Exchange shared data with device */
 530         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
 531                                VMXNET3_GET_ADDR_LO(hw->sharedPA));
 532         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
 533                                VMXNET3_GET_ADDR_HI(hw->sharedPA));
 534
 535         /* Activate device by register write */
 536         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
 537         status = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 538
 539         if (status != 0) {
 540                 PMD_INIT_LOG(ERR, "Device activation in %s(): UNSUCCESSFUL", __func__);
 541                 return -1;
 542         }
 543
 544         /* Disable interrupts */
 545         vmxnet3_disable_intr(hw);
 546
 547         /*
 548          * Load RX queues with blank mbufs and update next2fill index for device
 549          * Update RxMode of the device
 550          */
 551         ret = vmxnet3_dev_rxtx_init(dev);
 552         if (ret != VMXNET3_SUCCESS) {
 553                 PMD_INIT_LOG(ERR, "Device receive init in %s: UNSUCCESSFUL", __func__);
 554                 return ret;
 555         }
 556
 557         /* Setting proper Rx Mode and issue Rx Mode Update command */
 558         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 559
 560         /*
 561          * Don't need to handle events for now
 562          */
 563 #if PROCESS_SYS_EVENTS == 1
 564         events = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_ECR);
 565         PMD_INIT_LOG(DEBUG, "Reading events: 0x%X", events);
 566         vmxnet3_process_events(hw);
 567 #endif
 568         return status;
 569 }
 570
 571 /*
 572  * Stop device: disable rx and tx functions to allow for reconfiguring.
 573  */
 574 static void
 575 vmxnet3_dev_stop(struct rte_eth_dev *dev)
 576 {
 577         struct rte_eth_link link;
 578         struct vmxnet3_hw *hw = dev->data->dev_private;
 579
 580         PMD_INIT_FUNC_TRACE();
 581
 582         if (hw->adapter_stopped == TRUE) {
 583                 PMD_INIT_LOG(DEBUG, "Device already closed.");
 584                 return;
 585         }
 586
 587         /* disable interrupts */
 588         vmxnet3_disable_intr(hw);
 589
 590         /* quiesce the device first */
 591         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 592         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
 593         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
 594
 595         /* reset the device */
 596         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
 597         PMD_INIT_LOG(DEBUG, "Device reset.");
 598         hw->adapter_stopped = FALSE;
 599
 600         vmxnet3_dev_clear_queues(dev);
 601
 602         /* Clear recorded link status */
 603         memset(&link, 0, sizeof(link));
 604         vmxnet3_dev_atomic_write_link_status(dev, &link);
 605 }
 606
 607 /*
 608  * Reset and stop device.
 609  */
 610 static void
 611 vmxnet3_dev_close(struct rte_eth_dev *dev)
 612 {
 613         struct vmxnet3_hw *hw = dev->data->dev_private;
 614
 615         PMD_INIT_FUNC_TRACE();
 616
 617         vmxnet3_dev_stop(dev);
 618         hw->adapter_stopped = TRUE;
 619 }
 620
 621 static void
 622 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
 623 {
 624         unsigned int i;
 625         struct vmxnet3_hw *hw = dev->data->dev_private;
 626
 627         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 628
 629         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 630         for (i = 0; i < hw->num_tx_queues; i++) {
 631                 struct UPT1_TxStats *txStats = &hw->tqd_start[i].stats;
 632
 633                 stats->q_opackets[i] = txStats->ucastPktsTxOK +
 634                         txStats->mcastPktsTxOK +
 635                         txStats->bcastPktsTxOK;
 636                 stats->q_obytes[i] = txStats->ucastBytesTxOK +
 637                         txStats->mcastBytesTxOK +
 638                         txStats->bcastBytesTxOK;
 639
 640                 stats->opackets += stats->q_opackets[i];
 641                 stats->obytes += stats->q_obytes[i];
 642                 stats->oerrors += txStats->pktsTxError +
 643                         txStats->pktsTxDiscard;
 644         }
 645
 646         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
 647         for (i = 0; i < hw->num_rx_queues; i++) {
 648                 struct UPT1_RxStats *rxStats = &hw->rqd_start[i].stats;
 649
 650                 stats->q_ipackets[i] = rxStats->ucastPktsRxOK +
 651                         rxStats->mcastPktsRxOK +
 652                         rxStats->bcastPktsRxOK;
 653
 654                 stats->q_ibytes[i] = rxStats->ucastBytesRxOK +
 655                         rxStats->mcastBytesRxOK +
 656                         rxStats->bcastBytesRxOK;
 657
 658                 stats->ipackets += stats->q_ipackets[i];
 659                 stats->ibytes += stats->q_ibytes[i];
 660
 661                 stats->q_errors[i] = rxStats->pktsRxError;
 662                 stats->ierrors += rxStats->pktsRxError;
 663                 stats->imcasts += rxStats->mcastPktsRxOK;
 664                 stats->rx_nombuf += rxStats->pktsRxOutOfBuf;
 665         }
 666 }
 667
 668 static void
 669 vmxnet3_dev_info_get(__attribute__((unused))struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 670 {
 671         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
 672         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
 673         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
 674         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
 675         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
 676
 677         dev_info->default_txconf.txq_flags = ETH_TXQ_FLAGS_NOMULTSEGS |
 678                                                 ETH_TXQ_FLAGS_NOOFFLOADS;
 679         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
 680
 681         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
 682                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
 683                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
 684                 .nb_align = 1,
 685         };
 686
 687         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
 688                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
 689                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
 690                 .nb_align = 1,
 691         };
 692 }
 693
 694 /* return 0 means link status changed, -1 means not changed */
 695 static int
 696 vmxnet3_dev_link_update(struct rte_eth_dev *dev, __attribute__((unused)) int wait_to_complete)
 697 {
 698         struct vmxnet3_hw *hw = dev->data->dev_private;
 699         struct rte_eth_link old, link;
 700         uint32_t ret;
 701
 702         if (dev->data->dev_started == 0)
 703                 return -1; /* Link status doesn't change for stopped dev */
 704
 705         memset(&link, 0, sizeof(link));
 706         vmxnet3_dev_atomic_read_link_status(dev, &old);
 707
 708         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
 709         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 710
 711         if (ret & 0x1) {
 712                 link.link_status = 1;
 713                 link.link_duplex = ETH_LINK_FULL_DUPLEX;
 714                 link.link_speed = ETH_LINK_SPEED_10000;
 715         }
 716
 717         vmxnet3_dev_atomic_write_link_status(dev, &link);
 718
 719         return (old.link_status == link.link_status) ? -1 : 0;
 720 }
 721
 722 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
 723 static void
 724 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set) {
 725
 726         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 727
 728         if (set)
 729                 rxConf->rxMode = rxConf->rxMode | feature;
 730         else
 731                 rxConf->rxMode = rxConf->rxMode & (~feature);
 732
 733         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
 734 }
 735
 736 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 737 static void
 738 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
 739 {
 740         struct vmxnet3_hw *hw = dev->data->dev_private;
 741         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 742
 743         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
 744         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
 745
 746         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 747                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 748 }
 749
 750 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
 751 static void
 752 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
 753 {
 754         struct vmxnet3_hw *hw = dev->data->dev_private;
 755         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
 756
 757         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 758         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
 759         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 760                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 761 }
 762
 763 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 764 static void
 765 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
 766 {
 767         struct vmxnet3_hw *hw = dev->data->dev_private;
 768
 769         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
 770 }
 771
 772 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
 773 static void
 774 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
 775 {
 776         struct vmxnet3_hw *hw = dev->data->dev_private;
 777
 778         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
 779 }
 780
 781 /* Enable/disable filter on vlan */
 782 static int
 783 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
 784 {
 785         struct vmxnet3_hw *hw = dev->data->dev_private;
 786         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
 787         uint32_t *vf_table = rxConf->vfTable;
 788
 789         /* save state for restore */
 790         if (on)
 791                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 792         else
 793                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
 794
 795         /* don't change active filter if in promiscious mode */
 796         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
 797                 return 0;
 798
 799         /* set in hardware */
 800         if (on)
 801                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
 802         else
 803                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
 804
 805         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 806                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 807         return 0;
 808 }
 809
 810 static void
 811 vmxnet3_dev_vlan_offload_set_clear(struct rte_eth_dev *dev,
 812                                    int mask, int clear)
 813 {
 814         struct vmxnet3_hw *hw = dev->data->dev_private;
 815         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
 816         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
 817
 818         if (mask & ETH_VLAN_STRIP_MASK)
 819                 devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
 820         else
 821                 devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
 822
 823         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 824                                VMXNET3_CMD_UPDATE_FEATURE);
 825
 826         if (mask & ETH_VLAN_FILTER_MASK) {
 827                 if (clear) {
 828                         memset(hw->shadow_vfta, 0,
 829                                VMXNET3_VFT_TABLE_SIZE);
 830                         /* allow untagged pkts */
 831                         VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 832                 }
 833                 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
 834         } else {
 835                 /* allow any pkts -- no filtering */
 836                 if (clear)
 837                         memset(hw->shadow_vfta, 0xff, VMXNET3_VFT_TABLE_SIZE);
 838                 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
 839         }
 840
 841         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 842                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
 843 }
 844
 845 static void
 846 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
 847 {
 848         vmxnet3_dev_vlan_offload_set_clear(dev, mask, 0);
 849 }
 850
 851 #if PROCESS_SYS_EVENTS == 1
 852 static void
 853 vmxnet3_process_events(struct vmxnet3_hw *hw)
 854 {
 855         uint32_t events = hw->shared->ecr;
 856
 857         if (!events) {
 858                 PMD_INIT_LOG(ERR, "No events to process in %s()", __func__);
 859                 return;
 860         }
 861
 862         /*
 863          * ECR bits when written with 1b are cleared. Hence write
 864          * events back to ECR so that the bits which were set will be reset.
 865          */
 866         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
 867
 868         /* Check if link state has changed */
 869         if (events & VMXNET3_ECR_LINK)
 870                 PMD_INIT_LOG(ERR,
 871                              "Process events in %s(): VMXNET3_ECR_LINK event", __func__);
 872
 873         /* Check if there is an error on xmit/recv queues */
 874         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
 875                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_QUEUE_STATUS);
 876
 877                 if (hw->tqd_start->status.stopped)
 878                         PMD_INIT_LOG(ERR, "tq error 0x%x",
 879                                      hw->tqd_start->status.error);
 880
 881                 if (hw->rqd_start->status.stopped)
 882                         PMD_INIT_LOG(ERR, "rq error 0x%x",
 883                                      hw->rqd_start->status.error);
 884
 885                 /* Reset the device */
 886                 /* Have to reset the device */
 887         }
 888
 889         if (events & VMXNET3_ECR_DIC)
 890                 PMD_INIT_LOG(ERR, "Device implementation change event.");
 891
 892         if (events & VMXNET3_ECR_DEBUG)
 893                 PMD_INIT_LOG(ERR, "Debug event generated by device.");
 894
 895 }
 896 #endif
 897
 898 static struct rte_driver rte_vmxnet3_driver = {
 899         .type = PMD_PDEV,
 900         .init = rte_vmxnet3_pmd_init,
 901 };
 902
 903 PMD_REGISTER_DRIVER(rte_vmxnet3_driver);