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         dev->data->dev_started = 0;
 862 }
 863
 864 static void
 865 vmxnet3_free_queues(struct rte_eth_dev *dev)
 866 {
 867         int i;
 868
 869         PMD_INIT_FUNC_TRACE();
 870
 871         for (i = 0; i < dev->data->nb_rx_queues; i++) {
 872                 void *rxq = dev->data->rx_queues[i];
 873
 874                 vmxnet3_dev_rx_queue_release(rxq);
 875         }
 876         dev->data->nb_rx_queues = 0;
 877
 878         for (i = 0; i < dev->data->nb_tx_queues; i++) {
 879                 void *txq = dev->data->tx_queues[i];
 880
 881                 vmxnet3_dev_tx_queue_release(txq);
 882         }
 883         dev->data->nb_tx_queues = 0;
 884 }
 885
 886 /*
 887  * Reset and stop device.
 888  */
 889 static int
 890 vmxnet3_dev_close(struct rte_eth_dev *dev)
 891 {
 892         PMD_INIT_FUNC_TRACE();
 893         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 894                 return 0;
 895
 896         vmxnet3_dev_stop(dev);
 897         vmxnet3_free_queues(dev);
 898
 899         return 0;
 900 }
 901
 902 static void
 903 vmxnet3_hw_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 904                         struct UPT1_TxStats *res)
 905 {
 906 #define VMXNET3_UPDATE_TX_STAT(h, i, f, r)              \
 907                 ((r)->f = (h)->tqd_start[(i)].stats.f + \
 908                         (h)->saved_tx_stats[(i)].f)
 909
 910         VMXNET3_UPDATE_TX_STAT(hw, q, ucastPktsTxOK, res);
 911         VMXNET3_UPDATE_TX_STAT(hw, q, mcastPktsTxOK, res);
 912         VMXNET3_UPDATE_TX_STAT(hw, q, bcastPktsTxOK, res);
 913         VMXNET3_UPDATE_TX_STAT(hw, q, ucastBytesTxOK, res);
 914         VMXNET3_UPDATE_TX_STAT(hw, q, mcastBytesTxOK, res);
 915         VMXNET3_UPDATE_TX_STAT(hw, q, bcastBytesTxOK, res);
 916         VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxError, res);
 917         VMXNET3_UPDATE_TX_STAT(hw, q, pktsTxDiscard, res);
 918
 919 #undef VMXNET3_UPDATE_TX_STAT
 920 }
 921
 922 static void
 923 vmxnet3_hw_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 924                         struct UPT1_RxStats *res)
 925 {
 926 #define VMXNET3_UPDATE_RX_STAT(h, i, f, r)              \
 927                 ((r)->f = (h)->rqd_start[(i)].stats.f + \
 928                         (h)->saved_rx_stats[(i)].f)
 929
 930         VMXNET3_UPDATE_RX_STAT(hw, q, ucastPktsRxOK, res);
 931         VMXNET3_UPDATE_RX_STAT(hw, q, mcastPktsRxOK, res);
 932         VMXNET3_UPDATE_RX_STAT(hw, q, bcastPktsRxOK, res);
 933         VMXNET3_UPDATE_RX_STAT(hw, q, ucastBytesRxOK, res);
 934         VMXNET3_UPDATE_RX_STAT(hw, q, mcastBytesRxOK, res);
 935         VMXNET3_UPDATE_RX_STAT(hw, q, bcastBytesRxOK, res);
 936         VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxError, res);
 937         VMXNET3_UPDATE_RX_STAT(hw, q, pktsRxOutOfBuf, res);
 938
 939 #undef VMXNET3_UPDATE_RX_STAT
 940 }
 941
 942 static void
 943 vmxnet3_tx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 944                                         struct UPT1_TxStats *res)
 945 {
 946                 vmxnet3_hw_tx_stats_get(hw, q, res);
 947
 948 #define VMXNET3_REDUCE_SNAPSHOT_TX_STAT(h, i, f, r)     \
 949                 ((r)->f -= (h)->snapshot_tx_stats[(i)].f)
 950
 951         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastPktsTxOK, res);
 952         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastPktsTxOK, res);
 953         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastPktsTxOK, res);
 954         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, ucastBytesTxOK, res);
 955         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, mcastBytesTxOK, res);
 956         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, bcastBytesTxOK, res);
 957         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxError, res);
 958         VMXNET3_REDUCE_SNAPSHOT_TX_STAT(hw, q, pktsTxDiscard, res);
 959
 960 #undef VMXNET3_REDUCE_SNAPSHOT_TX_STAT
 961 }
 962
 963 static void
 964 vmxnet3_rx_stats_get(struct vmxnet3_hw *hw, unsigned int q,
 965                                         struct UPT1_RxStats *res)
 966 {
 967                 vmxnet3_hw_rx_stats_get(hw, q, res);
 968
 969 #define VMXNET3_REDUCE_SNAPSHOT_RX_STAT(h, i, f, r)     \
 970                 ((r)->f -= (h)->snapshot_rx_stats[(i)].f)
 971
 972         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastPktsRxOK, res);
 973         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastPktsRxOK, res);
 974         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastPktsRxOK, res);
 975         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, ucastBytesRxOK, res);
 976         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, mcastBytesRxOK, res);
 977         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, bcastBytesRxOK, res);
 978         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxError, res);
 979         VMXNET3_REDUCE_SNAPSHOT_RX_STAT(hw, q, pktsRxOutOfBuf, res);
 980
 981 #undef VMXNET3_REDUCE_SNAPSHOT_RX_STAT
 982 }
 983
 984 static void
 985 vmxnet3_hw_stats_save(struct vmxnet3_hw *hw)
 986 {
 987         unsigned int i;
 988
 989         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
 990
 991         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
 992
 993         for (i = 0; i < hw->num_tx_queues; i++)
 994                 vmxnet3_hw_tx_stats_get(hw, i, &hw->saved_tx_stats[i]);
 995         for (i = 0; i < hw->num_rx_queues; i++)
 996                 vmxnet3_hw_rx_stats_get(hw, i, &hw->saved_rx_stats[i]);
 997 }
 998
 999 static int
1000 vmxnet3_dev_xstats_get_names(struct rte_eth_dev *dev,
1001                              struct rte_eth_xstat_name *xstats_names,
1002                              unsigned int n)
1003 {
1004         unsigned int i, t, count = 0;
1005         unsigned int nstats =
1006                 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1007                 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1008
1009         if (!xstats_names || n < nstats)
1010                 return nstats;
1011
1012         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1013                 if (!dev->data->rx_queues[i])
1014                         continue;
1015
1016                 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1017                         snprintf(xstats_names[count].name,
1018                                  sizeof(xstats_names[count].name),
1019                                  "rx_q%u_%s", i,
1020                                  vmxnet3_rxq_stat_strings[t].name);
1021                         count++;
1022                 }
1023         }
1024
1025         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1026                 if (!dev->data->tx_queues[i])
1027                         continue;
1028
1029                 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1030                         snprintf(xstats_names[count].name,
1031                                  sizeof(xstats_names[count].name),
1032                                  "tx_q%u_%s", i,
1033                                  vmxnet3_txq_stat_strings[t].name);
1034                         count++;
1035                 }
1036         }
1037
1038         return count;
1039 }
1040
1041 static int
1042 vmxnet3_dev_xstats_get(struct rte_eth_dev *dev, struct rte_eth_xstat *xstats,
1043                        unsigned int n)
1044 {
1045         unsigned int i, t, count = 0;
1046         unsigned int nstats =
1047                 dev->data->nb_tx_queues * RTE_DIM(vmxnet3_txq_stat_strings) +
1048                 dev->data->nb_rx_queues * RTE_DIM(vmxnet3_rxq_stat_strings);
1049
1050         if (n < nstats)
1051                 return nstats;
1052
1053         for (i = 0; i < dev->data->nb_rx_queues; i++) {
1054                 struct vmxnet3_rx_queue *rxq = dev->data->rx_queues[i];
1055
1056                 if (rxq == NULL)
1057                         continue;
1058
1059                 for (t = 0; t < RTE_DIM(vmxnet3_rxq_stat_strings); t++) {
1060                         xstats[count].value = *(uint64_t *)(((char *)&rxq->stats) +
1061                                 vmxnet3_rxq_stat_strings[t].offset);
1062                         xstats[count].id = count;
1063                         count++;
1064                 }
1065         }
1066
1067         for (i = 0; i < dev->data->nb_tx_queues; i++) {
1068                 struct vmxnet3_tx_queue *txq = dev->data->tx_queues[i];
1069
1070                 if (txq == NULL)
1071                         continue;
1072
1073                 for (t = 0; t < RTE_DIM(vmxnet3_txq_stat_strings); t++) {
1074                         xstats[count].value = *(uint64_t *)(((char *)&txq->stats) +
1075                                 vmxnet3_txq_stat_strings[t].offset);
1076                         xstats[count].id = count;
1077                         count++;
1078                 }
1079         }
1080
1081         return count;
1082 }
1083
1084 static int
1085 vmxnet3_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
1086 {
1087         unsigned int i;
1088         struct vmxnet3_hw *hw = dev->data->dev_private;
1089         struct UPT1_TxStats txStats;
1090         struct UPT1_RxStats rxStats;
1091
1092         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1093
1094         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1095         for (i = 0; i < hw->num_tx_queues; i++) {
1096                 vmxnet3_tx_stats_get(hw, i, &txStats);
1097
1098                 stats->q_opackets[i] = txStats.ucastPktsTxOK +
1099                         txStats.mcastPktsTxOK +
1100                         txStats.bcastPktsTxOK;
1101
1102                 stats->q_obytes[i] = txStats.ucastBytesTxOK +
1103                         txStats.mcastBytesTxOK +
1104                         txStats.bcastBytesTxOK;
1105
1106                 stats->opackets += stats->q_opackets[i];
1107                 stats->obytes += stats->q_obytes[i];
1108                 stats->oerrors += txStats.pktsTxError + txStats.pktsTxDiscard;
1109         }
1110
1111         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_RX_QUEUES);
1112         for (i = 0; i < hw->num_rx_queues; i++) {
1113                 vmxnet3_rx_stats_get(hw, i, &rxStats);
1114
1115                 stats->q_ipackets[i] = rxStats.ucastPktsRxOK +
1116                         rxStats.mcastPktsRxOK +
1117                         rxStats.bcastPktsRxOK;
1118
1119                 stats->q_ibytes[i] = rxStats.ucastBytesRxOK +
1120                         rxStats.mcastBytesRxOK +
1121                         rxStats.bcastBytesRxOK;
1122
1123                 stats->ipackets += stats->q_ipackets[i];
1124                 stats->ibytes += stats->q_ibytes[i];
1125
1126                 stats->q_errors[i] = rxStats.pktsRxError;
1127                 stats->ierrors += rxStats.pktsRxError;
1128                 stats->imissed += rxStats.pktsRxOutOfBuf;
1129         }
1130
1131         return 0;
1132 }
1133
1134 static int
1135 vmxnet3_dev_stats_reset(struct rte_eth_dev *dev)
1136 {
1137         unsigned int i;
1138         struct vmxnet3_hw *hw = dev->data->dev_private;
1139         struct UPT1_TxStats txStats = {0};
1140         struct UPT1_RxStats rxStats = {0};
1141
1142         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_STATS);
1143
1144         RTE_BUILD_BUG_ON(RTE_ETHDEV_QUEUE_STAT_CNTRS < VMXNET3_MAX_TX_QUEUES);
1145
1146         for (i = 0; i < hw->num_tx_queues; i++) {
1147                 vmxnet3_hw_tx_stats_get(hw, i, &txStats);
1148                 memcpy(&hw->snapshot_tx_stats[i], &txStats,
1149                         sizeof(hw->snapshot_tx_stats[0]));
1150         }
1151         for (i = 0; i < hw->num_rx_queues; i++) {
1152                 vmxnet3_hw_rx_stats_get(hw, i, &rxStats);
1153                 memcpy(&hw->snapshot_rx_stats[i], &rxStats,
1154                         sizeof(hw->snapshot_rx_stats[0]));
1155         }
1156
1157         return 0;
1158 }
1159
1160 static int
1161 vmxnet3_dev_info_get(struct rte_eth_dev *dev,
1162                      struct rte_eth_dev_info *dev_info)
1163 {
1164         struct vmxnet3_hw *hw = dev->data->dev_private;
1165
1166         dev_info->max_rx_queues = VMXNET3_MAX_RX_QUEUES;
1167         dev_info->max_tx_queues = VMXNET3_MAX_TX_QUEUES;
1168         dev_info->min_rx_bufsize = 1518 + RTE_PKTMBUF_HEADROOM;
1169         dev_info->max_rx_pktlen = 16384; /* includes CRC, cf MAXFRS register */
1170         dev_info->min_mtu = VMXNET3_MIN_MTU;
1171         dev_info->max_mtu = VMXNET3_MAX_MTU;
1172         dev_info->speed_capa = ETH_LINK_SPEED_10G;
1173         dev_info->max_mac_addrs = VMXNET3_MAX_MAC_ADDRS;
1174
1175         dev_info->flow_type_rss_offloads = VMXNET3_RSS_OFFLOAD_ALL;
1176
1177         if (VMXNET3_VERSION_GE_4(hw)) {
1178                 dev_info->flow_type_rss_offloads |= VMXNET3_V4_RSS_MASK;
1179         }
1180
1181         dev_info->rx_desc_lim = (struct rte_eth_desc_lim) {
1182                 .nb_max = VMXNET3_RX_RING_MAX_SIZE,
1183                 .nb_min = VMXNET3_DEF_RX_RING_SIZE,
1184                 .nb_align = 1,
1185         };
1186
1187         dev_info->tx_desc_lim = (struct rte_eth_desc_lim) {
1188                 .nb_max = VMXNET3_TX_RING_MAX_SIZE,
1189                 .nb_min = VMXNET3_DEF_TX_RING_SIZE,
1190                 .nb_align = 1,
1191                 .nb_seg_max = VMXNET3_TX_MAX_SEG,
1192                 .nb_mtu_seg_max = VMXNET3_MAX_TXD_PER_PKT,
1193         };
1194
1195         dev_info->rx_offload_capa = VMXNET3_RX_OFFLOAD_CAP;
1196         dev_info->rx_queue_offload_capa = 0;
1197         dev_info->tx_offload_capa = VMXNET3_TX_OFFLOAD_CAP;
1198         dev_info->tx_queue_offload_capa = 0;
1199
1200         return 0;
1201 }
1202
1203 static const uint32_t *
1204 vmxnet3_dev_supported_ptypes_get(struct rte_eth_dev *dev)
1205 {
1206         static const uint32_t ptypes[] = {
1207                 RTE_PTYPE_L3_IPV4_EXT,
1208                 RTE_PTYPE_L3_IPV4,
1209                 RTE_PTYPE_UNKNOWN
1210         };
1211
1212         if (dev->rx_pkt_burst == vmxnet3_recv_pkts)
1213                 return ptypes;
1214         return NULL;
1215 }
1216
1217 static int
1218 vmxnet3_dev_mtu_set(struct rte_eth_dev *dev, __rte_unused uint16_t mtu)
1219 {
1220         if (dev->data->dev_started) {
1221                 PMD_DRV_LOG(ERR, "Port %d must be stopped to configure MTU",
1222                             dev->data->port_id);
1223                 return -EBUSY;
1224         }
1225
1226         return 0;
1227 }
1228
1229 static int
1230 vmxnet3_mac_addr_set(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr)
1231 {
1232         struct vmxnet3_hw *hw = dev->data->dev_private;
1233
1234         rte_ether_addr_copy(mac_addr, (struct rte_ether_addr *)(hw->perm_addr));
1235         vmxnet3_write_mac(hw, mac_addr->addr_bytes);
1236         return 0;
1237 }
1238
1239 /* return 0 means link status changed, -1 means not changed */
1240 static int
1241 __vmxnet3_dev_link_update(struct rte_eth_dev *dev,
1242                           __rte_unused int wait_to_complete)
1243 {
1244         struct vmxnet3_hw *hw = dev->data->dev_private;
1245         struct rte_eth_link link;
1246         uint32_t ret;
1247
1248         memset(&link, 0, sizeof(link));
1249
1250         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_GET_LINK);
1251         ret = VMXNET3_READ_BAR1_REG(hw, VMXNET3_REG_CMD);
1252
1253         if (ret & 0x1)
1254                 link.link_status = ETH_LINK_UP;
1255         link.link_duplex = ETH_LINK_FULL_DUPLEX;
1256         link.link_speed = ETH_SPEED_NUM_10G;
1257         link.link_autoneg = ETH_LINK_FIXED;
1258
1259         return rte_eth_linkstatus_set(dev, &link);
1260 }
1261
1262 static int
1263 vmxnet3_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
1264 {
1265         /* Link status doesn't change for stopped dev */
1266         if (dev->data->dev_started == 0)
1267                 return -1;
1268
1269         return __vmxnet3_dev_link_update(dev, wait_to_complete);
1270 }
1271
1272 /* Updating rxmode through Vmxnet3_DriverShared structure in adapter */
1273 static void
1274 vmxnet3_dev_set_rxmode(struct vmxnet3_hw *hw, uint32_t feature, int set)
1275 {
1276         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1277
1278         if (set)
1279                 rxConf->rxMode = rxConf->rxMode | feature;
1280         else
1281                 rxConf->rxMode = rxConf->rxMode & (~feature);
1282
1283         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD, VMXNET3_CMD_UPDATE_RX_MODE);
1284 }
1285
1286 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1287 static int
1288 vmxnet3_dev_promiscuous_enable(struct rte_eth_dev *dev)
1289 {
1290         struct vmxnet3_hw *hw = dev->data->dev_private;
1291         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1292
1293         memset(vf_table, 0, VMXNET3_VFT_TABLE_SIZE);
1294         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 1);
1295
1296         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1297                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1298
1299         return 0;
1300 }
1301
1302 /* Promiscuous supported only if Vmxnet3_DriverShared is initialized in adapter */
1303 static int
1304 vmxnet3_dev_promiscuous_disable(struct rte_eth_dev *dev)
1305 {
1306         struct vmxnet3_hw *hw = dev->data->dev_private;
1307         uint32_t *vf_table = hw->shared->devRead.rxFilterConf.vfTable;
1308         uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1309
1310         if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1311                 memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1312         else
1313                 memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1314         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_PROMISC, 0);
1315         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1316                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1317
1318         return 0;
1319 }
1320
1321 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1322 static int
1323 vmxnet3_dev_allmulticast_enable(struct rte_eth_dev *dev)
1324 {
1325         struct vmxnet3_hw *hw = dev->data->dev_private;
1326
1327         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 1);
1328
1329         return 0;
1330 }
1331
1332 /* Allmulticast supported only if Vmxnet3_DriverShared is initialized in adapter */
1333 static int
1334 vmxnet3_dev_allmulticast_disable(struct rte_eth_dev *dev)
1335 {
1336         struct vmxnet3_hw *hw = dev->data->dev_private;
1337
1338         vmxnet3_dev_set_rxmode(hw, VMXNET3_RXM_ALL_MULTI, 0);
1339
1340         return 0;
1341 }
1342
1343 /* Enable/disable filter on vlan */
1344 static int
1345 vmxnet3_dev_vlan_filter_set(struct rte_eth_dev *dev, uint16_t vid, int on)
1346 {
1347         struct vmxnet3_hw *hw = dev->data->dev_private;
1348         struct Vmxnet3_RxFilterConf *rxConf = &hw->shared->devRead.rxFilterConf;
1349         uint32_t *vf_table = rxConf->vfTable;
1350
1351         /* save state for restore */
1352         if (on)
1353                 VMXNET3_SET_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1354         else
1355                 VMXNET3_CLEAR_VFTABLE_ENTRY(hw->shadow_vfta, vid);
1356
1357         /* don't change active filter if in promiscuous mode */
1358         if (rxConf->rxMode & VMXNET3_RXM_PROMISC)
1359                 return 0;
1360
1361         /* set in hardware */
1362         if (on)
1363                 VMXNET3_SET_VFTABLE_ENTRY(vf_table, vid);
1364         else
1365                 VMXNET3_CLEAR_VFTABLE_ENTRY(vf_table, vid);
1366
1367         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1368                                VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1369         return 0;
1370 }
1371
1372 static int
1373 vmxnet3_dev_vlan_offload_set(struct rte_eth_dev *dev, int mask)
1374 {
1375         struct vmxnet3_hw *hw = dev->data->dev_private;
1376         Vmxnet3_DSDevRead *devRead = &hw->shared->devRead;
1377         uint32_t *vf_table = devRead->rxFilterConf.vfTable;
1378         uint64_t rx_offloads = dev->data->dev_conf.rxmode.offloads;
1379
1380         if (mask & ETH_VLAN_STRIP_MASK) {
1381                 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_STRIP)
1382                         devRead->misc.uptFeatures |= UPT1_F_RXVLAN;
1383                 else
1384                         devRead->misc.uptFeatures &= ~UPT1_F_RXVLAN;
1385
1386                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1387                                        VMXNET3_CMD_UPDATE_FEATURE);
1388         }
1389
1390         if (mask & ETH_VLAN_FILTER_MASK) {
1391                 if (rx_offloads & DEV_RX_OFFLOAD_VLAN_FILTER)
1392                         memcpy(vf_table, hw->shadow_vfta, VMXNET3_VFT_TABLE_SIZE);
1393                 else
1394                         memset(vf_table, 0xff, VMXNET3_VFT_TABLE_SIZE);
1395
1396                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1397                                        VMXNET3_CMD_UPDATE_VLAN_FILTERS);
1398         }
1399
1400         return 0;
1401 }
1402
1403 static void
1404 vmxnet3_process_events(struct rte_eth_dev *dev)
1405 {
1406         struct vmxnet3_hw *hw = dev->data->dev_private;
1407         uint32_t events = hw->shared->ecr;
1408
1409         if (!events)
1410                 return;
1411
1412         /*
1413          * ECR bits when written with 1b are cleared. Hence write
1414          * events back to ECR so that the bits which were set will be reset.
1415          */
1416         VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_ECR, events);
1417
1418         /* Check if link state has changed */
1419         if (events & VMXNET3_ECR_LINK) {
1420                 PMD_DRV_LOG(DEBUG, "Process events: VMXNET3_ECR_LINK event");
1421                 if (vmxnet3_dev_link_update(dev, 0) == 0)
1422                         rte_eth_dev_callback_process(dev,
1423                                                      RTE_ETH_EVENT_INTR_LSC,
1424                                                      NULL);
1425         }
1426
1427         /* Check if there is an error on xmit/recv queues */
1428         if (events & (VMXNET3_ECR_TQERR | VMXNET3_ECR_RQERR)) {
1429                 VMXNET3_WRITE_BAR1_REG(hw, VMXNET3_REG_CMD,
1430                                        VMXNET3_CMD_GET_QUEUE_STATUS);
1431
1432                 if (hw->tqd_start->status.stopped)
1433                         PMD_DRV_LOG(ERR, "tq error 0x%x",
1434                                     hw->tqd_start->status.error);
1435
1436                 if (hw->rqd_start->status.stopped)
1437                         PMD_DRV_LOG(ERR, "rq error 0x%x",
1438                                      hw->rqd_start->status.error);
1439
1440                 /* Reset the device */
1441                 /* Have to reset the device */
1442         }
1443
1444         if (events & VMXNET3_ECR_DIC)
1445                 PMD_DRV_LOG(DEBUG, "Device implementation change event.");
1446
1447         if (events & VMXNET3_ECR_DEBUG)
1448                 PMD_DRV_LOG(DEBUG, "Debug event generated by device.");
1449 }
1450
1451 static void
1452 vmxnet3_interrupt_handler(void *param)
1453 {
1454         struct rte_eth_dev *dev = param;
1455         struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(dev->device);
1456
1457         vmxnet3_process_events(dev);
1458
1459         if (rte_intr_ack(&pci_dev->intr_handle) < 0)
1460                 PMD_DRV_LOG(ERR, "interrupt enable failed");
1461 }
1462
1463 RTE_PMD_REGISTER_PCI(net_vmxnet3, rte_vmxnet3_pmd);
1464 RTE_PMD_REGISTER_PCI_TABLE(net_vmxnet3, pci_id_vmxnet3_map);
1465 RTE_PMD_REGISTER_KMOD_DEP(net_vmxnet3, "* igb_uio | uio_pci_generic | vfio-pci");
1466 RTE_LOG_REGISTER(vmxnet3_logtype_init, pmd.net.vmxnet3.init, NOTICE);
1467 RTE_LOG_REGISTER(vmxnet3_logtype_driver, pmd.net.vmxnet3.driver, NOTICE);