drivers/net/vmxnet3/vmxnet3_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2015 Intel Corporation
   3  */
   4
   5 #include <sys/queue.h>
   6 #include <stdio.h>
   7 #include <errno.h>
   8 #include <stdint.h>
   9 #include <string.h>
  10 #include <unistd.h>
  11 #include <stdarg.h>
  12 #include <fcntl.h>
  13 #include <inttypes.h>
  14 #include <rte_byteorder.h>
  15 #include <rte_common.h>
  16 #include <rte_cycles.h>
  17
  18 #include <rte_interrupts.h>
  19 #include <rte_log.h>
  20 #include <rte_debug.h>
  21 #include <rte_pci.h>
  22 #include <rte_bus_pci.h>
  23 #include <rte_branch_prediction.h>
  24 #include <rte_memory.h>
  25 #include <rte_memzone.h>
  26 #include <rte_eal.h>
  27 #include <rte_alarm.h>
  28 #include <rte_ether.h>
  29 #include <rte_ethdev_driver.h>
  30 #include <rte_ethdev_pci.h>
  31 #include <rte_string_fns.h>
  32 #include <rte_malloc.h>
  33 #include <rte_dev.h>
  34
  35 #include "base/vmxnet3_defs.h"
  36
  37 #include "vmxnet3_ring.h"
  38 #include "vmxnet3_logs.h"
  39 #include "vmxnet3_ethdev.h"
  40
  41 #define PROCESS_SYS_EVENTS 0
  42
  43 #define VMXNET3_TX_MAX_SEG      UINT8_MAX
  44
  45 #define VMXNET3_TX_OFFLOAD_CAP          \
  46         (DEV_TX_OFFLOAD_VLAN_INSERT |   \
  47          DEV_TX_OFFLOAD_TCP_CKSUM |     \
  48          DEV_TX_OFFLOAD_UDP_CKSUM |     \
  49          DEV_TX_OFFLOAD_TCP_TSO |       \
  50          DEV_TX_OFFLOAD_MULTI_SEGS)
  51
  52 #define VMXNET3_RX_OFFLOAD_CAP          \
  53         (DEV_RX_OFFLOAD_VLAN_STRIP |    \
  54          DEV_RX_OFFLOAD_VLAN_FILTER |   \
  55          DEV_RX_OFFLOAD_SCATTER |       \
  56          DEV_RX_OFFLOAD_UDP_CKSUM |     \
  57          DEV_RX_OFFLOAD_TCP_CKSUM |     \
  58          DEV_RX_OFFLOAD_TCP_LRO |       \
  59          DEV_RX_OFFLOAD_JUMBO_FRAME |   \
  60          DEV_RX_OFFLOAD_RSS_HASH)
  61
  62 static int eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev);
  63 static int eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev);
  64 static int vmxnet3_dev_configure(struct rte_eth_dev *dev);
  65 static int vmxnet3_dev_start(struct rte_eth_dev *dev);
  66 static void vmxnet3_dev_stop(struct rte_eth_dev *dev);
  67 static int vmxnet3_dev_close(struct rte_eth_dev *dev);
  68 static void vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set);
  69 static int vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev);
  70 static int vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev);
  71 static int vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev);
  72 static int vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev);
  73 static int __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
  74                                      int wait_to_complete);
  75 static int vmxnet3_dev_link_update(struct rte_eth_dev *dev,
  76                                    int wait_to_complete);
  77 static void vmxnet3_hw_stats_save(struct vmxnet3_hw *hw);
  78 static int vmxnet3_dev_stats_get(struct rte_eth_dev *dev,
  79                                   struct rte_eth_stats *stats);
  80 static int vmxnet3_dev_stats_reset(struct rte_eth_dev *dev);
  81 static int vmxnet3_dev_xstats_get_names(struct rte_eth_dev *dev,
  82                                         struct rte_eth_xstat_name *xstats,
  83                                         unsigned int n);
  84 static int vmxnet3_dev_xstats_get(struct rte_eth_dev *dev,
  85                                   struct rte_eth_xstat *xstats, unsigned int n);
  86 static int vmxnet3_dev_info_get(struct rte_eth_dev *dev,
  87                                 struct rte_eth_dev_info *dev_info);
  88 static const uint32_t *
  89 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev);
  90 static int vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu);
  91 static int vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev,
  92                                        uint16_t vid, int on);
  93 static int vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask);
  94 static int vmxnet3_mac_addr_set(struct rte_eth_dev *dev,
  95                                  struct rte_ether_addr *mac_addr);
  96 static void vmxnet3_interrupt_handler(void *param);
  97
  98 /*
  99  * The set of PCI devices this driver supports
 100  */
 101 #define VMWARE_PCI_VENDOR_ID 0x15AD
 102 #define VMWARE_DEV_ID_VMXNET3 0x07B0
 103 static const struct rte_pci_id pci_id_vmxnet3_map[] = {
 104         { RTE_PCI_DEVICE(VMWARE_PCI_VENDOR_ID, VMWARE_DEV_ID_VMXNET3) },
 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         .xstats_get_names     = vmxnet3_dev_xstats_get_names,
 120         .xstats_get           = vmxnet3_dev_xstats_get,
 121         .stats_reset          = vmxnet3_dev_stats_reset,
 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         .mtu_set              = vmxnet3_dev_mtu_set,
 126         .vlan_filter_set      = vmxnet3_dev_vlan_filter_set,
 127         .vlan_offload_set     = vmxnet3_dev_vlan_offload_set,
 128         .rx_queue_setup       = vmxnet3_dev_rx_queue_setup,
 129         .rx_queue_release     = vmxnet3_dev_rx_queue_release,
 130         .tx_queue_setup       = vmxnet3_dev_tx_queue_setup,
 131         .tx_queue_release     = vmxnet3_dev_tx_queue_release,
 132 };
 133
 134 struct vmxnet3_xstats_name_off {
 135         char name[RTE_ETH_XSTATS_NAME_SIZE];
 136         unsigned int offset;
 137 };
 138
 139 /* tx_qX_ is prepended to the name string here */
 140 static const struct vmxnet3_xstats_name_off vmxnet3_txq_stat_strings[] = {
 141         {"drop_total",         offsetof(struct vmxnet3_txq_stats, drop_total)},
 142         {"drop_too_many_segs", offsetof(struct vmxnet3_txq_stats, drop_too_many_segs)},
 143         {"drop_tso",           offsetof(struct vmxnet3_txq_stats, drop_tso)},
 144         {"tx_ring_full",       offsetof(struct vmxnet3_txq_stats, tx_ring_full)},
 145 };
 146
 147 /* rx_qX_ is prepended to the name string here */
 148 static const struct vmxnet3_xstats_name_off vmxnet3_rxq_stat_strings[] = {
 149         {"drop_total",           offsetof(struct vmxnet3_rxq_stats, drop_total)},
 150         {"drop_err",             offsetof(struct vmxnet3_rxq_stats, drop_err)},
 151         {"drop_fcs",             offsetof(struct vmxnet3_rxq_stats, drop_fcs)},
 152         {"rx_buf_alloc_failure", offsetof(struct vmxnet3_rxq_stats, rx_buf_alloc_failure)},
 153 };
 154
 155 static const struct rte_memzone *
 156 gpa_zone_reserve(struct rte_eth_dev *dev, uint32_t size,
 157                  const char *post_string, int socket_id,
 158                  uint16_t align, bool reuse)
 159 {
 160         char z_name[RTE_MEMZONE_NAMESIZE];
 161         const struct rte_memzone *mz;
 162
 163         snprintf(z_name, sizeof(z_name), "eth_p%d_%s",
 164                         dev->data->port_id, post_string);
 165
 166         mz = rte_memzone_lookup(z_name);
 167         if (!reuse) {
 168                 if (mz)
 169                         rte_memzone_free(mz);
 170                 return rte_memzone_reserve_aligned(z_name, size, socket_id,
 171                                 RTE_MEMZONE_IOVA_CONTIG, align);
 172         }
 173
 174         if (mz)
 175                 return mz;
 176
 177         return rte_memzone_reserve_aligned(z_name, size, socket_id,
 178                         RTE_MEMZONE_IOVA_CONTIG, align);
 179 }
 180
 181 /*
 182  * This function is based on vmxnet3_disable_intr()
 183  */
 184 static void
 185 vmxnet3_disable_intr(struct vmxnet3_hw *hw)
 186 {
 187         int i;
 188
 189         PMD_INIT_FUNC_TRACE();
 190
 191         hw->shared->devRead.intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 192         for (i = 0; i < hw->num_intrs; i++)
 193                 VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 1);
 194 }
 195
 196 static void
 197 vmxnet3_enable_intr(struct vmxnet3_hw *hw)
 198 {
 199         int i;
 200
 201         PMD_INIT_FUNC_TRACE();
 202
 203         hw->shared->devRead.intrConf.intrCtrl &= ~VMXNET3_IC_DISABLE_ALL;
 204         for (i = 0; i < hw->num_intrs; i++)
 205                 VMXNET3_WRITE_BAR0_REG(hw, VMXNET3_REG_IMR + i * 8, 0);
 206 }
 207
 208 /*
 209  * Gets tx data ring descriptor size.
 210  */
 211 static uint16_t
 212 eth_vmxnet3_txdata_get(struct vmxnet3_hw *hw)
 213 {
 214         uint16 txdata_desc_size;
 215
 216         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 217                                VMXNET3_CMD_GET_TXDATA_DESC_SIZE);
 218         txdata_desc_size = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 219
 220         return (txdata_desc_size < VMXNET3_TXDATA_DESC_MIN_SIZE ||
 221                 txdata_desc_size > VMXNET3_TXDATA_DESC_MAX_SIZE ||
 222                 txdata_desc_size & VMXNET3_TXDATA_DESC_SIZE_MASK) ?
 223                 sizeof(struct Vmxnet3_TxDataDesc) : txdata_desc_size;
 224 }
 225
 226 /*
 227  * It returns 0 on success.
 228  */
 229 static int
 230 eth_vmxnet3_dev_init(struct rte_eth_dev *eth_dev)
 231 {
 232         struct rte_pci_device *pci_dev;
 233         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 234         uint32_t mac_hi, mac_lo, ver;
 235         struct rte_eth_link link;
 236
 237         PMD_INIT_FUNC_TRACE();
 238
 239         eth_dev->dev_ops = &vmxnet3_eth_dev_ops;
 240         eth_dev->rx_pkt_burst = &vmxnet3_recv_pkts;
 241         eth_dev->tx_pkt_burst = &vmxnet3_xmit_pkts;
 242         eth_dev->tx_pkt_prepare = vmxnet3_prep_pkts;
 243         pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
 244
 245         /*
 246          * for secondary processes, we don't initialize any further as primary
 247          * has already done this work.
 248          */
 249         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 250                 return 0;
 251
 252         rte_eth_copy_pci_info(eth_dev, pci_dev);
 253
 254         /* Vendor and Device ID need to be set before init of shared code */
 255         hw->device_id = pci_dev->id.device_id;
 256         hw->vendor_id = pci_dev->id.vendor_id;
 257         hw->hw_addr0 = (void *)pci_dev->mem_resource[0].addr;
 258         hw->hw_addr1 = (void *)pci_dev->mem_resource[1].addr;
 259
 260         hw->num_rx_queues = 1;
 261         hw->num_tx_queues = 1;
 262         hw->bufs_per_pkt = 1;
 263
 264         /* Check h/w version compatibility with driver. */
 265         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_VRRS);
 266         PMD_INIT_LOG(DEBUG, "Hardware version : %d", ver);
 267
 268         if (ver & (1 << VMXNET3_REV_4)) {
 269                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 270                                        1 << VMXNET3_REV_4);
 271                 hw->version = VMXNET3_REV_4 + 1;
 272         } else if (ver & (1 << VMXNET3_REV_3)) {
 273                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 274                                        1 << VMXNET3_REV_3);
 275                 hw->version = VMXNET3_REV_3 + 1;
 276         } else if (ver & (1 << VMXNET3_REV_2)) {
 277                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 278                                        1 << VMXNET3_REV_2);
 279                 hw->version = VMXNET3_REV_2 + 1;
 280         } else if (ver & (1 << VMXNET3_REV_1)) {
 281                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_VRRS,
 282                                        1 << VMXNET3_REV_1);
 283                 hw->version = VMXNET3_REV_1 + 1;
 284         } else {
 285                 PMD_INIT_LOG(ERR, "Incompatible hardware version: %d", ver);
 286                 return -EIO;
 287         }
 288
 289         PMD_INIT_LOG(DEBUG, "Using device version %d\n", hw->version);
 290
 291         /* Check UPT version compatibility with driver. */
 292         ver = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_UVRS);
 293         PMD_INIT_LOG(DEBUG, "UPT hardware version : %d", ver);
 294         if (ver & 0x1)
 295                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_UVRS, 1);
 296         else {
 297                 PMD_INIT_LOG(ERR, "Incompatible UPT version.");
 298                 return -EIO;
 299         }
 300
 301         /* Getting MAC Address */
 302         mac_lo = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACL);
 303         mac_hi = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_MACH);
 304         memcpy(hw->perm_addr, &mac_lo, 4);
 305         memcpy(hw->perm_addr + 4, &mac_hi, 2);
 306
 307         /* Allocate memory for storing MAC addresses */
 308         eth_dev->data->mac_addrs = rte_zmalloc("vmxnet3", RTE_ETHER_ADDR_LEN *
 309                                                VMXNET3_MAX_MAC_ADDRS, 0);
 310         if (eth_dev->data->mac_addrs == NULL) {
 311                 PMD_INIT_LOG(ERR,
 312                              "Failed to allocate %d bytes needed to store MAC addresses",
 313                              RTE_ETHER_ADDR_LEN * VMXNET3_MAX_MAC_ADDRS);
 314                 return -ENOMEM;
 315         }
 316         /* Copy the permanent MAC address */
 317         rte_ether_addr_copy((struct rte_ether_addr *)hw->perm_addr,
 318                         &eth_dev->data->mac_addrs[0]);
 319
 320         PMD_INIT_LOG(DEBUG, "MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 321                      hw->perm_addr[0], hw->perm_addr[1], hw->perm_addr[2],
 322                      hw->perm_addr[3], hw->perm_addr[4], hw->perm_addr[5]);
 323
 324         /* Put device in Quiesce Mode */
 325         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 326
 327         /* allow untagged pkts */
 328         VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, 0);
 329
 330         hw->txdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
 331                 eth_vmxnet3_txdata_get(hw) : sizeof(struct Vmxnet3_TxDataDesc);
 332
 333         hw->rxdata_desc_size = VMXNET3_VERSION_GE_3(hw) ?
 334                 VMXNET3_DEF_RXDATA_DESC_SIZE : 0;
 335         RTE_ASSERT((hw->rxdata_desc_size & ~VMXNET3_RXDATA_DESC_SIZE_MASK) ==
 336                    hw->rxdata_desc_size);
 337
 338         /* clear shadow stats */
 339         memset(hw->saved_tx_stats, 0, sizeof(hw->saved_tx_stats));
 340         memset(hw->saved_rx_stats, 0, sizeof(hw->saved_rx_stats));
 341
 342         /* clear snapshot stats */
 343         memset(hw->snapshot_tx_stats, 0, sizeof(hw->snapshot_tx_stats));
 344         memset(hw->snapshot_rx_stats, 0, sizeof(hw->snapshot_rx_stats));
 345
 346         /* set the initial link status */
 347         memset(&link, 0, sizeof(link));
 348         link.link_duplex = ETH_LINK_FULL_DUPLEX;
 349         link.link_speed = ETH_SPEED_NUM_10G;
 350         link.link_autoneg = ETH_LINK_FIXED;
 351         rte_eth_linkstatus_set(eth_dev, &link);
 352
 353         return 0;
 354 }
 355
 356 static int
 357 eth_vmxnet3_dev_uninit(struct rte_eth_dev *eth_dev)
 358 {
 359         struct vmxnet3_hw *hw = eth_dev->data->dev_private;
 360
 361         PMD_INIT_FUNC_TRACE();
 362
 363         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 364                 return 0;
 365
 366         if (hw->adapter_stopped == 0) {
 367                 PMD_INIT_LOG(DEBUG, "Device has not been closed.");
 368                 return -EBUSY;
 369         }
 370
 371         eth_dev->dev_ops = NULL;
 372         eth_dev->rx_pkt_burst = NULL;
 373         eth_dev->tx_pkt_burst = NULL;
 374         eth_dev->tx_pkt_prepare = NULL;
 375
 376         return 0;
 377 }
 378
 379 static int eth_vmxnet3_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 380         struct rte_pci_device *pci_dev)
 381 {
 382         return rte_eth_dev_pci_generic_probe(pci_dev,
 383                 sizeof(struct vmxnet3_hw), eth_vmxnet3_dev_init);
 384 }
 385
 386 static int eth_vmxnet3_pci_remove(struct rte_pci_device *pci_dev)
 387 {
 388         return rte_eth_dev_pci_generic_remove(pci_dev, eth_vmxnet3_dev_uninit);
 389 }
 390
 391 static struct rte_pci_driver rte_vmxnet3_pmd = {
 392         .id_table = pci_id_vmxnet3_map,
 393         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_INTR_LSC,
 394         .probe = eth_vmxnet3_pci_probe,
 395         .remove = eth_vmxnet3_pci_remove,
 396 };
 397
 398 static int
 399 vmxnet3_dev_configure(struct rte_eth_dev *dev)
 400 {
 401         const struct rte_memzone *mz;
 402         struct vmxnet3_hw *hw = dev->data->dev_private;
 403         size_t size;
 404
 405         PMD_INIT_FUNC_TRACE();
 406
 407         if (dev->data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG)
 408                 dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_RSS_HASH;
 409
 410         if (dev->data->nb_tx_queues > VMXNET3_MAX_TX_QUEUES ||
 411             dev->data->nb_rx_queues > VMXNET3_MAX_RX_QUEUES) {
 412                 PMD_INIT_LOG(ERR, "ERROR: Number of queues not supported");
 413                 return -EINVAL;
 414         }
 415
 416         if (!rte_is_power_of_2(dev->data->nb_rx_queues)) {
 417                 PMD_INIT_LOG(ERR, "ERROR: Number of rx queues not power of 2");
 418                 return -EINVAL;
 419         }
 420
 421         size = dev->data->nb_rx_queues * sizeof(struct Vmxnet3_TxQueueDesc) +
 422                 dev->data->nb_tx_queues * sizeof(struct Vmxnet3_RxQueueDesc);
 423
 424         if (size > UINT16_MAX)
 425                 return -EINVAL;
 426
 427         hw->num_rx_queues = (uint8_t)dev->data->nb_rx_queues;
 428         hw->num_tx_queues = (uint8_t)dev->data->nb_tx_queues;
 429
 430         /*
 431          * Allocate a memzone for Vmxnet3_DriverShared - Vmxnet3_DSDevRead
 432          * on current socket
 433          */
 434         mz = gpa_zone_reserve(dev, sizeof(struct Vmxnet3_DriverShared),
 435                               "shared", rte_socket_id(), 8, 1);
 436
 437         if (mz == NULL) {
 438                 PMD_INIT_LOG(ERR, "ERROR: Creating shared zone");
 439                 return -ENOMEM;
 440         }
 441         memset(mz->addr, 0, mz->len);
 442
 443         hw->shared = mz->addr;
 444         hw->sharedPA = mz->iova;
 445
 446         /*
 447          * Allocate a memzone for Vmxnet3_RxQueueDesc - Vmxnet3_TxQueueDesc
 448          * on current socket.
 449          *
 450          * We cannot reuse this memzone from previous allocation as its size
 451          * depends on the number of tx and rx queues, which could be different
 452          * from one config to another.
 453          */
 454         mz = gpa_zone_reserve(dev, size, "queuedesc", rte_socket_id(),
 455                               VMXNET3_QUEUE_DESC_ALIGN, 0);
 456         if (mz == NULL) {
 457                 PMD_INIT_LOG(ERR, "ERROR: Creating queue descriptors zone");
 458                 return -ENOMEM;
 459         }
 460         memset(mz->addr, 0, mz->len);
 461
 462         hw->tqd_start = (Vmxnet3_TxQueueDesc *)mz->addr;
 463         hw->rqd_start = (Vmxnet3_RxQueueDesc *)(hw->tqd_start + hw->num_tx_queues);
 464
 465         hw->queueDescPA = mz->iova;
 466         hw->queue_desc_len = (uint16_t)size;
 467
 468         if (dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 469                 /* Allocate memory structure for UPT1_RSSConf and configure */
 470                 mz = gpa_zone_reserve(dev, sizeof(struct VMXNET3_RSSConf),
 471                                       "rss_conf", rte_socket_id(),
 472                                       RTE_CACHE_LINE_SIZE, 1);
 473                 if (mz == NULL) {
 474                         PMD_INIT_LOG(ERR,
 475                                      "ERROR: Creating rss_conf structure zone");
 476                         return -ENOMEM;
 477                 }
 478                 memset(mz->addr, 0, mz->len);
 479
 480                 hw->rss_conf = mz->addr;
 481                 hw->rss_confPA = mz->iova;
 482         }
 483
 484         return 0;
 485 }
 486
 487 static void
 488 vmxnet3_write_mac(struct vmxnet3_hw *hw, const uint8_t *addr)
 489 {
 490         uint32_t val;
 491
 492         PMD_INIT_LOG(DEBUG,
 493                      "Writing MAC Address : %02x:%02x:%02x:%02x:%02x:%02x",
 494                      addr[0], addr[1], addr[2],
 495                      addr[3], addr[4], addr[5]);
 496
 497         memcpy(&val, addr, 4);
 498         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACL, val);
 499
 500         memcpy(&val, addr + 4, 2);
 501         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_MACH, val);
 502 }
 503
 504 static int
 505 vmxnet3_dev_setup_memreg(struct rte_eth_dev *dev)
 506 {
 507         struct vmxnet3_hw *hw = dev->data->dev_private;
 508         Vmxnet3_DriverShared *shared = hw->shared;
 509         Vmxnet3_CmdInfo *cmdInfo;
 510         struct rte_mempool *mp[VMXNET3_MAX_RX_QUEUES];
 511         uint8_t index[VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES];
 512         uint32_t num, i, j, size;
 513
 514         if (hw->memRegsPA == 0) {
 515                 const struct rte_memzone *mz;
 516
 517                 size = sizeof(Vmxnet3_MemRegs) +
 518                         (VMXNET3_MAX_RX_QUEUES + VMXNET3_MAX_TX_QUEUES) *
 519                         sizeof(Vmxnet3_MemoryRegion);
 520
 521                 mz = gpa_zone_reserve(dev, size, "memRegs", rte_socket_id(), 8,
 522                                       1);
 523                 if (mz == NULL) {
 524                         PMD_INIT_LOG(ERR, "ERROR: Creating memRegs zone");
 525                         return -ENOMEM;
 526                 }
 527                 memset(mz->addr, 0, mz->len);
 528                 hw->memRegs = mz->addr;
 529                 hw->memRegsPA = mz->iova;
 530         }
 531
 532         num = hw->num_rx_queues;
 533
 534         for (i = 0; i < num; i++) {
 535                 vmxnet3_rx_queue_t *rxq = dev->data->rx_queues[i];
 536
 537                 mp[i] = rxq->mp;
 538                 index[i] = 1 << i;
 539         }
 540
 541         /*
 542          * The same mempool could be used by multiple queues. In such a case,
 543          * remove duplicate mempool entries. Only one entry is kept with
 544          * bitmask indicating queues that are using this mempool.
 545          */
 546         for (i = 1; i < num; i++) {
 547                 for (j = 0; j < i; j++) {
 548                         if (mp[i] == mp[j]) {
 549                                 mp[i] = NULL;
 550                                 index[j] |= 1 << i;
 551                                 break;
 552                         }
 553                 }
 554         }
 555
 556         j = 0;
 557         for (i = 0; i < num; i++) {
 558                 if (mp[i] == NULL)
 559                         continue;
 560
 561                 Vmxnet3_MemoryRegion *mr = &hw->memRegs->memRegs[j];
 562
 563                 mr->startPA =
 564                         (uintptr_t)STAILQ_FIRST(&mp[i]->mem_list)->iova;
 565                 mr->length = STAILQ_FIRST(&mp[i]->mem_list)->len <= INT32_MAX ?
 566                         STAILQ_FIRST(&mp[i]->mem_list)->len : INT32_MAX;
 567                 mr->txQueueBits = index[i];
 568                 mr->rxQueueBits = index[i];
 569
 570                 PMD_INIT_LOG(INFO,
 571                              "index: %u startPA: %" PRIu64 " length: %u, "
 572                              "rxBits: %x",
 573                              j, mr->startPA, mr->length, mr->rxQueueBits);
 574                 j++;
 575         }
 576         hw->memRegs->numRegs = j;
 577         PMD_INIT_LOG(INFO, "numRegs: %u", j);
 578
 579         size = sizeof(Vmxnet3_MemRegs) +
 580                 (j - 1) * sizeof(Vmxnet3_MemoryRegion);
 581
 582         cmdInfo = &shared->cu.cmdInfo;
 583         cmdInfo->varConf.confVer = 1;
 584         cmdInfo->varConf.confLen = size;
 585         cmdInfo->varConf.confPA = hw->memRegsPA;
 586
 587         return 0;
 588 }
 589
 590 static int
 591 vmxnet3_setup_driver_shared(struct rte_eth_dev *dev)
 592 {
 593         struct rte_eth_conf port_conf = dev->data->dev_conf;
 594         struct vmxnet3_hw *hw = dev->data->dev_private;
 595         uint32_t mtu = dev->data->mtu;
 596         Vmxnet3_DriverShared *shared = hw->shared;
 597         Vmxnet3_DSDevRead *devRead = &shared->devRead;
 598         uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
 599         uint32_t i;
 600         int ret;
 601
 602         hw->mtu = mtu;
 603
 604         shared->magic = VMXNET3_REV1_MAGIC;
 605         devRead->misc.driverInfo.version = VMXNET3_DRIVER_VERSION_NUM;
 606
 607         /* Setting up Guest OS information */
 608         devRead->misc.driverInfo.gos.gosBits   = sizeof(void *) == 4 ?
 609                 VMXNET3_GOS_BITS_32 : VMXNET3_GOS_BITS_64;
 610         devRead->misc.driverInfo.gos.gosType   = VMXNET3_GOS_TYPE_LINUX;
 611         devRead->misc.driverInfo.vmxnet3RevSpt = 1;
 612         devRead->misc.driverInfo.uptVerSpt     = 1;
 613
 614         devRead->misc.mtu = rte_le_to_cpu_32(mtu);
 615         devRead->misc.queueDescPA  = hw->queueDescPA;
 616         devRead->misc.queueDescLen = hw->queue_desc_len;
 617         devRead->misc.numTxQueues  = hw->num_tx_queues;
 618         devRead->misc.numRxQueues  = hw->num_rx_queues;
 619
 620         /*
 621          * Set number of interrupts to 1
 622          * PMD by default disables all the interrupts but this is MUST
 623          * to activate device. It needs at least one interrupt for
 624          * link events to handle
 625          */
 626         hw->num_intrs = devRead->intrConf.numIntrs = 1;
 627         devRead->intrConf.intrCtrl |= VMXNET3_IC_DISABLE_ALL;
 628
 629         for (i = 0; i < hw->num_tx_queues; i++) {
 630                 Vmxnet3_TxQueueDesc *tqd = &hw->tqd_start[i];
 631                 vmxnet3_tx_queue_t *txq  = dev->data->tx_queues[i];
 632
 633                 txq->shared = &hw->tqd_start[i];
 634
 635                 tqd->ctrl.txNumDeferred  = 0;
 636                 tqd->ctrl.txThreshold    = 1;
 637                 tqd->conf.txRingBasePA   = txq->cmd_ring.basePA;
 638                 tqd->conf.compRingBasePA = txq->comp_ring.basePA;
 639                 tqd->conf.dataRingBasePA = txq->data_ring.basePA;
 640
 641                 tqd->conf.txRingSize   = txq->cmd_ring.size;
 642                 tqd->conf.compRingSize = txq->comp_ring.size;
 643                 tqd->conf.dataRingSize = txq->data_ring.size;
 644                 tqd->conf.txDataRingDescSize = txq->txdata_desc_size;
 645                 tqd->conf.intrIdx      = txq->comp_ring.intr_idx;
 646                 tqd->status.stopped    = TRUE;
 647                 tqd->status.error      = 0;
 648                 memset(&tqd->stats, 0, sizeof(tqd->stats));
 649         }
 650
 651         for (i = 0; i < hw->num_rx_queues; i++) {
 652                 Vmxnet3_RxQueueDesc *rqd  = &hw->rqd_start[i];
 653                 vmxnet3_rx_queue_t *rxq   = dev->data->rx_queues[i];
 654
 655                 rxq->shared = &hw->rqd_start[i];
 656
 657                 rqd->conf.rxRingBasePA[0] = rxq->cmd_ring[0].basePA;
 658                 rqd->conf.rxRingBasePA[1] = rxq->cmd_ring[1].basePA;
 659                 rqd->conf.compRingBasePA  = rxq->comp_ring.basePA;
 660
 661                 rqd->conf.rxRingSize[0]   = rxq->cmd_ring[0].size;
 662                 rqd->conf.rxRingSize[1]   = rxq->cmd_ring[1].size;
 663                 rqd->conf.compRingSize    = rxq->comp_ring.size;
 664                 rqd->conf.intrIdx         = rxq->comp_ring.intr_idx;
 665                 if (VMXNET3_VERSION_GE_3(hw)) {
 666                         rqd->conf.rxDataRingBasePA = rxq->data_ring.basePA;
 667                         rqd->conf.rxDataRingDescSize = rxq->data_desc_size;
 668                 }
 669                 rqd->status.stopped       = TRUE;
 670                 rqd->status.error         = 0;
 671                 memset(&rqd->stats, 0, sizeof(rqd->stats));
 672         }
 673
 674         /* RxMode set to 0 of VMXNET3_RXM_xxx */
 675         devRead->rxFilterConf.rxMode = 0;
 676
 677         /* Setting up feature flags */
 678         if (rx_offloads & DEV_RX_OFFLOAD_CHECKSUM)
 679                 devRead->misc.uptFeatures |= VMXNET3_F_RXCSUM;
 680
 681         if (rx_offloads & DEV_RX_OFFLOAD_TCP_LRO) {
 682                 devRead->misc.uptFeatures |= VMXNET3_F_LRO;
 683                 devRead->misc.maxNumRxSG = 0;
 684         }
 685
 686         if (port_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 687                 ret = vmxnet3_rss_configure(dev);
 688                 if (ret != VMXNET3_SUCCESS)
 689                         return ret;
 690
 691                 devRead->misc.uptFeatures |= VMXNET3_F_RSS;
 692                 devRead->rssConfDesc.confVer = 1;
 693                 devRead->rssConfDesc.confLen = sizeof(struct VMXNET3_RSSConf);
 694                 devRead->rssConfDesc.confPA  = hw->rss_confPA;
 695         }
 696
 697         ret = vmxnet3_dev_vlan_offload_set(dev,
 698                         ETH_VLAN_STRIP_MASK | ETH_VLAN_FILTER_MASK);
 699         if (ret)
 700                 return ret;
 701
 702         vmxnet3_write_mac(hw, dev->data->mac_addrs->addr_bytes);
 703
 704         return VMXNET3_SUCCESS;
 705 }
 706
 707 /*
 708  * Configure device link speed and setup link.
 709  * Must be called after eth_vmxnet3_dev_init. Other wise it might fail
 710  * It returns 0 on success.
 711  */
 712 static int
 713 vmxnet3_dev_start(struct rte_eth_dev *dev)
 714 {
 715         int ret;
 716         struct vmxnet3_hw *hw = dev->data->dev_private;
 717
 718         PMD_INIT_FUNC_TRACE();
 719
 720         /* Save stats before it is reset by CMD_ACTIVATE */
 721         vmxnet3_hw_stats_save(hw);
 722
 723         ret = vmxnet3_setup_driver_shared(dev);
 724         if (ret != VMXNET3_SUCCESS)
 725                 return ret;
 726
 727         /* check if lsc interrupt feature is enabled */
 728         if (dev->data->dev_conf.intr_conf.lsc) {
 729                 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
 730
 731                 /* Setup interrupt callback  */
 732                 rte_intr_callback_register(&pci_dev->intr_handle,
 733                                            vmxnet3_interrupt_handler, dev);
 734
 735                 if (rte_intr_enable(&pci_dev->intr_handle) < 0) {
 736                         PMD_INIT_LOG(ERR, "interrupt enable failed");
 737                         return -EIO;
 738                 }
 739         }
 740
 741         /* Exchange shared data with device */
 742         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL,
 743                                VMXNET3_GET_ADDR_LO(hw->sharedPA));
 744         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH,
 745                                VMXNET3_GET_ADDR_HI(hw->sharedPA));
 746
 747         /* Activate device by register write */
 748         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_ACTIVATE_DEV);
 749         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 750
 751         if (ret != 0) {
 752                 PMD_INIT_LOG(ERR, "Device activation: UNSUCCESSFUL");
 753                 return -EINVAL;
 754         }
 755
 756         /* Setup memory region for rx buffers */
 757         ret = vmxnet3_dev_setup_memreg(dev);
 758         if (ret == 0) {
 759                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
 760                                        VMXNET3_CMD_REGISTER_MEMREGS);
 761                 ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
 762                 if (ret != 0)
 763                         PMD_INIT_LOG(DEBUG,
 764                                      "Failed in setup memory region cmd\n");
 765                 ret = 0;
 766         } else {
 767                 PMD_INIT_LOG(DEBUG, "Failed to setup memory region\n");
 768         }
 769
 770         if (VMXNET3_VERSION_GE_4(hw) &&
 771             dev->data->dev_conf.rxmode.mq_mode == ETH_MQ_RX_RSS) {
 772                 /* Check for additional RSS  */
 773                 ret = vmxnet3_v4_rss_configure(dev);
 774                 if (ret != VMXNET3_SUCCESS) {
 775                         PMD_INIT_LOG(ERR, "Failed to configure v4 RSS");
 776                         return ret;
 777                 }
 778         }
 779
 780         /* Disable interrupts */
 781         vmxnet3_disable_intr(hw);
 782
 783         /*
 784          * Load RX queues with blank mbufs and update next2fill index for device
 785          * Update RxMode of the device
 786          */
 787         ret = vmxnet3_dev_rxtx_init(dev);
 788         if (ret != VMXNET3_SUCCESS) {
 789                 PMD_INIT_LOG(ERR, "Device queue init: UNSUCCESSFUL");
 790                 return ret;
 791         }
 792
 793         hw->adapter_stopped = FALSE;
 794
 795         /* Setting proper Rx Mode and issue Rx Mode Update command */
 796         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_UCAST | VMXNET3_RXM_BCAST, 1);
 797
 798         if (dev->data->dev_conf.intr_conf.lsc) {
 799                 vmxnet3_enable_intr(hw);
 800
 801                 /*
 802                  * Update link state from device since this won't be
 803                  * done upon starting with lsc in use. This is done
 804                  * only after enabling interrupts to avoid any race
 805                  * where the link state could change without an
 806                  * interrupt being fired.
 807                  */
 808                 __vmxnet3_dev_link_update(dev, 0);
 809         }
 810
 811         return VMXNET3_SUCCESS;
 812 }
 813
 814 /*
 815  * Stop device: disable rx and tx functions to allow for reconfiguring.
 816  */
 817 static void
 818 vmxnet3_dev_stop(struct rte_eth_dev *dev)
 819 {
 820         struct rte_eth_link link;
 821         struct vmxnet3_hw *hw = dev->data->dev_private;
 822
 823         PMD_INIT_FUNC_TRACE();
 824
 825         if (hw->adapter_stopped == 1) {
 826                 PMD_INIT_LOG(DEBUG, "Device already stopped.");
 827                 return;
 828         }
 829
 830         /* disable interrupts */
 831         vmxnet3_disable_intr(hw);
 832
 833         if (dev->data->dev_conf.intr_conf.lsc) {
 834                 struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
 835
 836                 rte_intr_disable(&pci_dev->intr_handle);
 837
 838                 rte_intr_callback_unregister(&pci_dev->intr_handle,
 839                                              vmxnet3_interrupt_handler, dev);
 840         }
 841
 842         /* quiesce the device first */
 843         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_QUIESCE_DEV);
 844         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAL, 0);
 845         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_DSAH, 0);
 846
 847         /* reset the device */
 848         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_RESET_DEV);
 849         PMD_INIT_LOG(DEBUG, "Device reset.");
 850
 851         vmxnet3_dev_clear_queues(dev);
 852
 853         /* Clear recorded link status */
 854         memset(&link, 0, sizeof(link));
 855         link.link_duplex = ETH_LINK_FULL_DUPLEX;
 856         link.link_speed = ETH_SPEED_NUM_10G;
 857         link.link_autoneg = ETH_LINK_FIXED;
 858         rte_eth_linkstatus_set(dev, &link);
 859
 860         hw->adapter_stopped = 1;
 861 }
 862
 863 static void
 864 vmxnet3_free_queues(struct rte_eth_dev *dev)
 865 {
 866         int i;
 867
 868         PMD_INIT_FUNC_TRACE();
 869
 870         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 871                 void *rxq = dev->data->rx_queues[i];
 872
 873                 vmxnet3_dev_rx_queue_release(rxq);
 874         }
 875         dev->data->nb_rx_queues = 0;
 876
 877         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 878                 void *txq = dev->data->tx_queues[i];
 879
 880                 vmxnet3_dev_tx_queue_release(txq);
 881         }
 882         dev->data->nb_tx_queues = 0;
 883 }
 884
 885 /*
 886  * Reset and stop device.
 887  */
 888 static int
 889 vmxnet3_dev_close(struct rte_eth_dev *dev)
 890 {
 891         PMD_INIT_FUNC_TRACE();
 892         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 893                 return 0;
 894
 895         vmxnet3_dev_stop(dev);
 896         vmxnet3_free_queues(dev);
 897
 898         return 0;
 899 }
 900
 901 static void
 902 vmxnet3_hw_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 903                         struct UPT1_TxStats *res)
 904 {
 905 #define VMXNET3_UPDATE_TX_STAT(h, i, f, r)              \
 906                 ((r)->f = (h)->tqd_start[(i)].stats.f + \
 907                         (h)->saved_tx_stats[(i)].f)
 908
 909         VMXNET3_UPDATE_TX_STAT(hw, q, ucastPktsTxOK, res);
 910         VMXNET3_UPDATE_TX_STAT(hw, q, mcastPktsTxOK, res);
 911         VMXNET3_UPDATE_TX_STAT(hw, q, bcastPktsTxOK, res);
 912         VMXNET3_UPDATE_TX_STAT(hw, q, ucastBytesTxOK, res);
 913         VMXNET3_UPDATE_TX_STAT(hw, q, mcastBytesTxOK, res);
 914         VMXNET3_UPDATE_TX_STAT(hw, q, bcastBytesTxOK, res);
 915         VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxError, res);
 916         VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxDiscard, res);
 917
 918 #undef VMXNET3_UPDATE_TX_STAT
 919 }
 920
 921 static void
 922 vmxnet3_hw_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 923                         struct UPT1_RxStats *res)
 924 {
 925 #define VMXNET3_UPDATE_RX_STAT(h, i, f, r)              \
 926                 ((r)->f = (h)->rqd_start[(i)].stats.f + \
 927                         (h)->saved_rx_stats[(i)].f)
 928
 929         VMXNET3_UPDATE_RX_STAT(hw, q, ucastPktsRxOK, res);
 930         VMXNET3_UPDATE_RX_STAT(hw, q, mcastPktsRxOK, res);
 931         VMXNET3_UPDATE_RX_STAT(hw, q, bcastPktsRxOK, res);
 932         VMXNET3_UPDATE_RX_STAT(hw, q, ucastBytesRxOK, res);
 933         VMXNET3_UPDATE_RX_STAT(hw, q, mcastBytesRxOK, res);
 934         VMXNET3_UPDATE_RX_STAT(hw, q, bcastBytesRxOK, res);
 935         VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxError, res);
 936         VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxOutOfBuf, res);
 937
 938 #undef VMXNET3_UPDATE_RX_STAT
 939 }
 940
 941 static void
 942 vmxnet3_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 943                                         struct UPT1_TxStats *res)
 944 {
 945                 vmxnet3_hw_tx_stats_get(hw, q, res);
 946
 947 #define VMXNET3_REDUCE_SNAPSHOT_TX_STAT(h, i, f, r)     \
 948                 ((r)->f -= (h)->snapshot_tx_stats[(i)].f)
 949
 950         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastPktsTxOK, res);
 951         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastPktsTxOK, res);
 952         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastPktsTxOK, res);
 953         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastBytesTxOK, res);
 954         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastBytesTxOK, res);
 955         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastBytesTxOK, res);
 956         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxError, res);
 957         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxDiscard, res);
 958
 959 #undef VMXNET3_REDUCE_SNAPSHOT_TX_STAT
 960 }
 961
 962 static void
 963 vmxnet3_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 964                                         struct UPT1_RxStats *res)
 965 {
 966                 vmxnet3_hw_rx_stats_get(hw, q, res);
 967
 968 #define VMXNET3_REDUCE_SNAPSHOT_RX_STAT(h, i, f, r)     \
 969                 ((r)->f -= (h)->snapshot_rx_stats[(i)].f)
 970
 971         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastPktsRxOK, res);
 972         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastPktsRxOK, res);
 973         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastPktsRxOK, res);
 974         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastBytesRxOK, res);
 975         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastBytesRxOK, res);
 976         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastBytesRxOK, res);
 977         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxError, res);
 978         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxOutOfBuf, res);
 979
 980 #undef VMXNET3_REDUCE_SNAPSHOT_RX_STAT
 981 }
 982
 983 static void
 984 vmxnet3_hw_stats_save(struct vmxnet3_hw *hw)
 985 {
 986         unsigned int i;
 987
 988         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 989
 990         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 991
 992         for (i = 0; i < hw->num_tx_queues; i++)
 993                 vmxnet3_hw_tx_stats_get(hw, i, &hw->saved_tx_stats[i]);
 994         for (i = 0; i < hw->num_rx_queues; i++)
 995                 vmxnet3_hw_rx_stats_get(hw, i, &hw->saved_rx_stats[i]);
 996 }
 997
 998 static int
 999 vmxnet3_dev_xstats_get_names(struct rte_eth_dev *dev,
1000                              struct rte_eth_xstat_name *xstats_names,
1001                              unsigned int n)
1002 {
1003         unsigned int i, t, count = 0;
1004         unsigned int nstats =
1005                 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1006                 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1007
1008         if (!xstats_names || n < nstats)
1009                 return nstats;
1010
1011         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1012                 if (!dev->data->rx_queues[i])
1013                         continue;
1014
1015                 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1016                         snprintf(xstats_names[count].name,
1017                                  sizeof(xstats_names[count].name),
1018                                  "rx_q%u_%s", i,
1019                                  vmxnet3_rxq_stat_strings[t].name);
1020                         count++;
1021                 }
1022         }
1023
1024         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1025                 if (!dev->data->tx_queues[i])
1026                         continue;
1027
1028                 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1029                         snprintf(xstats_names[count].name,
1030                                  sizeof(xstats_names[count].name),
1031                                  "tx_q%u_%s", i,
1032                                  vmxnet3_txq_stat_strings[t].name);
1033                         count++;
1034                 }
1035         }
1036
1037         return count;
1038 }
1039
1040 static int
1041 vmxnet3_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
1042                        unsigned int n)
1043 {
1044         unsigned int i, t, count = 0;
1045         unsigned int nstats =
1046                 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1047                 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1048
1049         if (n < nstats)
1050                 return nstats;
1051
1052         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1053                 struct vmxnet3_rx_queue *rxq = dev->data->rx_queues[i];
1054
1055                 if (rxq == NULL)
1056                         continue;
1057
1058                 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1059                         xstats[count].value = *(uint64_t *)(((char *)&rxq->stats) +
1060                                 vmxnet3_rxq_stat_strings[t].offset);
1061                         xstats[count].id = count;
1062                         count++;
1063                 }
1064         }
1065
1066         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1067                 struct vmxnet3_tx_queue *txq = dev->data->tx_queues[i];
1068
1069                 if (txq == NULL)
1070                         continue;
1071
1072                 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1073                         xstats[count].value = *(uint64_t *)(((char *)&txq->stats) +
1074                                 vmxnet3_txq_stat_strings[t].offset);
1075                         xstats[count].id = count;
1076                         count++;
1077                 }
1078         }
1079
1080         return count;
1081 }
1082
1083 static int
1084 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
1085 {
1086         unsigned int i;
1087         struct vmxnet3_hw *hw = dev->data->dev_private;
1088         struct UPT1_TxStats txStats;
1089         struct UPT1_RxStats rxStats;
1090
1091         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1092
1093         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1094         for (i = 0; i < hw->num_tx_queues; i++) {
1095                 vmxnet3_tx_stats_get(hw, i, &txStats);
1096
1097                 stats->q_opackets[i] = txStats.ucastPktsTxOK +
1098                         txStats.mcastPktsTxOK +
1099                         txStats.bcastPktsTxOK;
1100
1101                 stats->q_obytes[i] = txStats.ucastBytesTxOK +
1102                         txStats.mcastBytesTxOK +
1103                         txStats.bcastBytesTxOK;
1104
1105                 stats->opackets += stats->q_opackets[i];
1106                 stats->obytes += stats->q_obytes[i];
1107                 stats->oerrors += txStats.pktsTxError + txStats.pktsTxDiscard;
1108         }
1109
1110         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
1111         for (i = 0; i < hw->num_rx_queues; i++) {
1112                 vmxnet3_rx_stats_get(hw, i, &rxStats);
1113
1114                 stats->q_ipackets[i] = rxStats.ucastPktsRxOK +
1115                         rxStats.mcastPktsRxOK +
1116                         rxStats.bcastPktsRxOK;
1117
1118                 stats->q_ibytes[i] = rxStats.ucastBytesRxOK +
1119                         rxStats.mcastBytesRxOK +
1120                         rxStats.bcastBytesRxOK;
1121
1122                 stats->ipackets += stats->q_ipackets[i];
1123                 stats->ibytes += stats->q_ibytes[i];
1124
1125                 stats->q_errors[i] = rxStats.pktsRxError;
1126                 stats->ierrors += rxStats.pktsRxError;
1127                 stats->imissed += rxStats.pktsRxOutOfBuf;
1128         }
1129
1130         return 0;
1131 }
1132
1133 static int
1134 vmxnet3_dev_stats_reset(struct rte_eth_dev *dev)
1135 {
1136         unsigned int i;
1137         struct vmxnet3_hw *hw = dev->data->dev_private;
1138         struct UPT1_TxStats txStats = {0};
1139         struct UPT1_RxStats rxStats = {0};
1140
1141         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1142
1143         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1144
1145         for (i = 0; i < hw->num_tx_queues; i++) {
1146                 vmxnet3_hw_tx_stats_get(hw, i, &txStats);
1147                 memcpy(&hw->snapshot_tx_stats[i], &txStats,
1148                         sizeof(hw->snapshot_tx_stats[0]));
1149         }
1150         for (i = 0; i < hw->num_rx_queues; i++) {
1151                 vmxnet3_hw_rx_stats_get(hw, i, &rxStats);
1152                 memcpy(&hw->snapshot_rx_stats[i], &rxStats,
1153                         sizeof(hw->snapshot_rx_stats[0]));
1154         }
1155
1156         return 0;
1157 }
1158
1159 static int
1160 vmxnet3_dev_info_get(struct rte_eth_dev *dev,
1161                      struct rte_eth_dev_info *dev_info)
1162 {
1163         struct vmxnet3_hw *hw = dev->data->dev_private;
1164
1165         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
1166         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
1167         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
1168         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
1169         dev_info->min_mtu = VMXNET3_MIN_MTU;
1170         dev_info->max_mtu = VMXNET3_MAX_MTU;
1171         dev_info->speed_capa = ETH_LINK_SPEED_10G;
1172         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
1173
1174         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
1175
1176         if (VMXNET3_VERSION_GE_4(hw)) {
1177                 dev_info->flow_type_rss_offloads |= VMXNET3_V4_RSS_MASK;
1178         }
1179
1180         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
1181                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
1182                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
1183                 .nb_align = 1,
1184         };
1185
1186         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
1187                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
1188                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
1189                 .nb_align = 1,
1190                 .nb_seg_max = VMXNET3_TX_MAX_SEG,
1191                 .nb_mtu_seg_max = VMXNET3_MAX_TXD_PER_PKT,
1192         };
1193
1194         dev_info->rx_offload_capa = VMXNET3_RX_OFFLOAD_CAP;
1195         dev_info->rx_queue_offload_capa = 0;
1196         dev_info->tx_offload_capa = VMXNET3_TX_OFFLOAD_CAP;
1197         dev_info->tx_queue_offload_capa = 0;
1198
1199         return 0;
1200 }
1201
1202 static const uint32_t *
1203 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1204 {
1205         static const uint32_t ptypes[] = {
1206                 RTE_PTYPE_L3_IPV4_EXT,
1207                 RTE_PTYPE_L3_IPV4,
1208                 RTE_PTYPE_UNKNOWN
1209         };
1210
1211         if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
1212                 return ptypes;
1213         return NULL;
1214 }
1215
1216 static int
1217 vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, __rte_unused uint16_t mtu)
1218 {
1219         if (dev->data->dev_started) {
1220                 PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU",
1221                             dev->data->port_id);
1222                 return -EBUSY;
1223         }
1224
1225         return 0;
1226 }
1227
1228 static int
1229 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1230 {
1231         struct vmxnet3_hw *hw = dev->data->dev_private;
1232
1233         rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)(hw->perm_addr));
1234         vmxnet3_write_mac(hw, mac_addr->addr_bytes);
1235         return 0;
1236 }
1237
1238 /* return 0 means link status changed, -1 means not changed */
1239 static int
1240 __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
1241                           __rte_unused int wait_to_complete)
1242 {
1243         struct vmxnet3_hw *hw = dev->data->dev_private;
1244         struct rte_eth_link link;
1245         uint32_t ret;
1246
1247         memset(&link, 0, sizeof(link));
1248
1249         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
1250         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
1251
1252         if (ret & 0x1)
1253                 link.link_status = ETH_LINK_UP;
1254         link.link_duplex = ETH_LINK_FULL_DUPLEX;
1255         link.link_speed = ETH_SPEED_NUM_10G;
1256         link.link_autoneg = ETH_LINK_FIXED;
1257
1258         return rte_eth_linkstatus_set(dev, &link);
1259 }
1260
1261 static int
1262 vmxnet3_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
1263 {
1264         /* Link status doesn't change for stopped dev */
1265         if (dev->data->dev_started == 0)
1266                 return -1;
1267
1268         return __vmxnet3_dev_link_update(dev, wait_to_complete);
1269 }
1270
1271 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
1272 static void
1273 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set)
1274 {
1275         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1276
1277         if (set)
1278                 rxConf->rxMode = rxConf->rxMode | feature;
1279         else
1280                 rxConf->rxMode = rxConf->rxMode & (~feature);
1281
1282         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
1283 }
1284
1285 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1286 static int
1287 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
1288 {
1289         struct vmxnet3_hw *hw = dev->data->dev_private;
1290         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1291
1292         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
1293         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
1294
1295         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1296                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1297
1298         return 0;
1299 }
1300
1301 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1302 static int
1303 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
1304 {
1305         struct vmxnet3_hw *hw = dev->data->dev_private;
1306         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1307         uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1308
1309         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1310                 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1311         else
1312                 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1313         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
1314         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1315                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1316
1317         return 0;
1318 }
1319
1320 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1321 static int
1322 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
1323 {
1324         struct vmxnet3_hw *hw = dev->data->dev_private;
1325
1326         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
1327
1328         return 0;
1329 }
1330
1331 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1332 static int
1333 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
1334 {
1335         struct vmxnet3_hw *hw = dev->data->dev_private;
1336
1337         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
1338
1339         return 0;
1340 }
1341
1342 /* Enable/disable filter on vlan */
1343 static int
1344 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
1345 {
1346         struct vmxnet3_hw *hw = dev->data->dev_private;
1347         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1348         uint32_t *vf_table = rxConf->vfTable;
1349
1350         /* save state for restore */
1351         if (on)
1352                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1353         else
1354                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1355
1356         /* don't change active filter if in promiscuous mode */
1357         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
1358                 return 0;
1359
1360         /* set in hardware */
1361         if (on)
1362                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
1363         else
1364                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
1365
1366         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1367                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1368         return 0;
1369 }
1370
1371 static int
1372 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1373 {
1374         struct vmxnet3_hw *hw = dev->data->dev_private;
1375         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
1376         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
1377         uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1378
1379         if (mask & ETH_VLAN_STRIP_MASK) {
1380                 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
1381                         devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
1382                 else
1383                         devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
1384
1385                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1386                                        VMXNET3_CMD_UPDATE_FEATURE);
1387         }
1388
1389         if (mask & ETH_VLAN_FILTER_MASK) {
1390                 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1391                         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1392                 else
1393                         memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1394
1395                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1396                                        VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1397         }
1398
1399         return 0;
1400 }
1401
1402 static void
1403 vmxnet3_process_events(struct rte_eth_dev *dev)
1404 {
1405         struct vmxnet3_hw *hw = dev->data->dev_private;
1406         uint32_t events = hw->shared->ecr;
1407
1408         if (!events)
1409                 return;
1410
1411         /*
1412          * ECR bits when written with 1b are cleared. Hence write
1413          * events back to ECR so that the bits which were set will be reset.
1414          */
1415         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
1416
1417         /* Check if link state has changed */
1418         if (events & VMXNET3_ECR_LINK) {
1419                 PMD_DRV_LOG(DEBUG, "Process events: VMXNET3_ECR_LINK event");
1420                 if (vmxnet3_dev_link_update(dev, 0) == 0)
1421                         rte_eth_dev_callback_process(dev,
1422                                                      RTE_ETH_EVENT_INTR_LSC,
1423                                                      NULL);
1424         }
1425
1426         /* Check if there is an error on xmit/recv queues */
1427         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
1428                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1429                                        VMXNET3_CMD_GET_QUEUE_STATUS);
1430
1431                 if (hw->tqd_start->status.stopped)
1432                         PMD_DRV_LOG(ERR, "tq error 0x%x",
1433                                     hw->tqd_start->status.error);
1434
1435                 if (hw->rqd_start->status.stopped)
1436                         PMD_DRV_LOG(ERR, "rq error 0x%x",
1437                                      hw->rqd_start->status.error);
1438
1439                 /* Reset the device */
1440                 /* Have to reset the device */
1441         }
1442
1443         if (events & VMXNET3_ECR_DIC)
1444                 PMD_DRV_LOG(DEBUG, "Device implementation change event.");
1445
1446         if (events & VMXNET3_ECR_DEBUG)
1447                 PMD_DRV_LOG(DEBUG, "Debug event generated by device.");
1448 }
1449
1450 static void
1451 vmxnet3_interrupt_handler(void *param)
1452 {
1453         struct rte_eth_dev *dev = param;
1454         struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
1455
1456         vmxnet3_process_events(dev);
1457
1458         if (rte_intr_ack(&pci_dev->intr_handle) < 0)
1459                 PMD_DRV_LOG(ERR, "interrupt enable failed");
1460 }
1461
1462 RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd);
1463 RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);
1464 RTE_PMD_REGISTER_KMOD_DEP(net_vmxnet3, "* igb_uio | uio_pci_generic | vfio-pci");
1465 RTE_LOG_REGISTER(vmxnet3_logtype_init, pmd.net.vmxnet3.init, NOTICE);
1466 RTE_LOG_REGISTER(vmxnet3_logtype_driver, pmd.net.vmxnet3.driver, NOTICE);