vnet/vnet/devices/dpdk/init.c

   1 /*
   2  * Copyright (c) 2015 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 #include <vnet/vnet.h>
  16 #include <vppinfra/vec.h>
  17 #include <vppinfra/error.h>
  18 #include <vppinfra/format.h>
  19 #include <vppinfra/bitmap.h>
  20
  21 #include <vnet/ethernet/ethernet.h>
  22 #include <vnet/devices/dpdk/dpdk.h>
  23 #include <vlib/unix/physmem.h>
  24 #include <vlib/pci/pci.h>
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <sys/stat.h>
  30 #include <sys/mount.h>
  31 #include <string.h>
  32 #include <fcntl.h>
  33
  34 #include "dpdk_priv.h"
  35
  36 dpdk_main_t dpdk_main;
  37
  38 /* force linker to link functions used by vlib and declared weak */
  39 void *vlib_weakly_linked_functions[] = {
  40   &rte_pktmbuf_init,
  41   &rte_pktmbuf_pool_init,
  42 };
  43
  44 #define LINK_STATE_ELOGS        0
  45
  46 #define DEFAULT_HUGE_DIR "/run/vpp/hugepages"
  47 #define VPP_RUN_DIR "/run/vpp"
  48
  49 /* Port configuration, mildly modified Intel app values */
  50
  51 static struct rte_eth_conf port_conf_template = {
  52   .rxmode = {
  53              .split_hdr_size = 0,
  54              .header_split = 0,         /**< Header Split disabled */
  55              .hw_ip_checksum = 0,       /**< IP checksum offload disabled */
  56              .hw_vlan_filter = 0,       /**< VLAN filtering disabled */
  57              .hw_strip_crc = 0,         /**< CRC stripped by hardware */
  58              },
  59   .txmode = {
  60              .mq_mode = ETH_MQ_TX_NONE,
  61              },
  62 };
  63
  64 clib_error_t *
  65 dpdk_port_setup (dpdk_main_t * dm, dpdk_device_t * xd)
  66 {
  67   vlib_main_t *vm = vlib_get_main ();
  68   vlib_buffer_main_t *bm = vm->buffer_main;
  69   int rv;
  70   int j;
  71
  72   ASSERT (os_get_cpu_number () == 0);
  73
  74   if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
  75     {
  76       vnet_hw_interface_set_flags (dm->vnet_main, xd->vlib_hw_if_index, 0);
  77       rte_eth_dev_stop (xd->device_index);
  78     }
  79
  80   rv = rte_eth_dev_configure (xd->device_index, xd->rx_q_used,
  81                               xd->tx_q_used, &xd->port_conf);
  82
  83   if (rv < 0)
  84     return clib_error_return (0, "rte_eth_dev_configure[%d]: err %d",
  85                               xd->device_index, rv);
  86
  87   /* Set up one TX-queue per worker thread */
  88   for (j = 0; j < xd->tx_q_used; j++)
  89     {
  90       rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
  91                                    xd->cpu_socket, &xd->tx_conf);
  92
  93       /* retry with any other CPU socket */
  94       if (rv < 0)
  95         rv = rte_eth_tx_queue_setup (xd->device_index, j, xd->nb_tx_desc,
  96                                      SOCKET_ID_ANY, &xd->tx_conf);
  97       if (rv < 0)
  98         break;
  99     }
 100
 101   if (rv < 0)
 102     return clib_error_return (0, "rte_eth_tx_queue_setup[%d]: err %d",
 103                               xd->device_index, rv);
 104
 105   for (j = 0; j < xd->rx_q_used; j++)
 106     {
 107
 108       rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
 109                                    xd->cpu_socket, 0,
 110                                    bm->
 111                                    pktmbuf_pools[xd->cpu_socket_id_by_queue
 112                                                  [j]]);
 113
 114       /* retry with any other CPU socket */
 115       if (rv < 0)
 116         rv = rte_eth_rx_queue_setup (xd->device_index, j, xd->nb_rx_desc,
 117                                      SOCKET_ID_ANY, 0,
 118                                      bm->
 119                                      pktmbuf_pools[xd->cpu_socket_id_by_queue
 120                                                    [j]]);
 121       if (rv < 0)
 122         return clib_error_return (0, "rte_eth_rx_queue_setup[%d]: err %d",
 123                                   xd->device_index, rv);
 124     }
 125
 126   if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
 127     {
 128       int rv;
 129       rv = rte_eth_dev_start (xd->device_index);
 130       if (rv < 0)
 131         clib_warning ("rte_eth_dev_start %d returned %d",
 132                       xd->device_index, rv);
 133     }
 134   return 0;
 135 }
 136
 137 static u32
 138 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
 139 {
 140   dpdk_main_t *dm = &dpdk_main;
 141   dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
 142   u32 old = 0;
 143
 144   if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
 145     {
 146       old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
 147
 148       if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
 149         xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
 150       else
 151         xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
 152
 153       if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
 154         {
 155           if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
 156             rte_eth_promiscuous_enable (xd->device_index);
 157           else
 158             rte_eth_promiscuous_disable (xd->device_index);
 159         }
 160     }
 161   else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
 162     {
 163       /*
 164        * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
 165        *            driver to dynamically change the mtu.  If/when the
 166        *            VIC firmware gets fixed, then this should be removed.
 167        */
 168       if (xd->pmd == VNET_DPDK_PMD_ENIC)
 169         {
 170           struct rte_eth_dev_info dev_info;
 171
 172           /*
 173            * Restore mtu to what has been set by CIMC in the firmware cfg.
 174            */
 175           rte_eth_dev_info_get (xd->device_index, &dev_info);
 176           hi->max_packet_bytes = dev_info.max_rx_pktlen;
 177
 178           vlib_cli_output (vlib_get_main (),
 179                            "Cisco VIC mtu can only be changed "
 180                            "using CIMC then rebooting the server!");
 181         }
 182       else
 183         {
 184           int rv;
 185
 186           xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
 187
 188           if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
 189             rte_eth_dev_stop (xd->device_index);
 190
 191           rv = rte_eth_dev_configure
 192             (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
 193
 194           if (rv < 0)
 195             vlib_cli_output (vlib_get_main (),
 196                              "rte_eth_dev_configure[%d]: err %d",
 197                              xd->device_index, rv);
 198
 199           rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
 200
 201           if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
 202             {
 203               int rv = rte_eth_dev_start (xd->device_index);
 204               if (rv < 0)
 205                 clib_warning ("rte_eth_dev_start %d returned %d",
 206                               xd->device_index, rv);
 207             }
 208         }
 209     }
 210   return old;
 211 }
 212
 213 void
 214 dpdk_device_lock_init (dpdk_device_t * xd)
 215 {
 216   int q;
 217   vec_validate (xd->lockp, xd->tx_q_used - 1);
 218   for (q = 0; q < xd->tx_q_used; q++)
 219     {
 220       xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
 221                                              CLIB_CACHE_LINE_BYTES);
 222       memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
 223     }
 224   xd->need_txlock = 1;
 225 }
 226
 227 void
 228 dpdk_device_lock_free (dpdk_device_t * xd)
 229 {
 230   int q;
 231
 232   for (q = 0; q < vec_len (xd->lockp); q++)
 233     clib_mem_free ((void *) xd->lockp[q]);
 234   vec_free (xd->lockp);
 235   xd->lockp = 0;
 236   xd->need_txlock = 0;
 237 }
 238
 239 static clib_error_t *
 240 dpdk_lib_init (dpdk_main_t * dm)
 241 {
 242   u32 nports;
 243   u32 nb_desc = 0;
 244   int i;
 245   clib_error_t *error;
 246   vlib_main_t *vm = vlib_get_main ();
 247   vlib_thread_main_t *tm = vlib_get_thread_main ();
 248   vlib_node_runtime_t *rt;
 249   vnet_sw_interface_t *sw;
 250   vnet_hw_interface_t *hi;
 251   dpdk_device_t *xd;
 252   vlib_pci_addr_t last_pci_addr;
 253   u32 last_pci_addr_port = 0;
 254   vlib_thread_registration_t *tr, *tr_hqos;
 255   uword *p, *p_hqos;
 256
 257   u32 next_cpu = 0, next_hqos_cpu = 0;
 258   u8 af_packet_port_id = 0;
 259   last_pci_addr.as_u32 = ~0;
 260
 261   dm->input_cpu_first_index = 0;
 262   dm->input_cpu_count = 1;
 263
 264   rt = vlib_node_get_runtime (vm, dpdk_input_node.index);
 265   rt->function = dpdk_input_multiarch_select ();
 266
 267   /* find out which cpus will be used for input */
 268   p = hash_get_mem (tm->thread_registrations_by_name, "workers");
 269   tr = p ? (vlib_thread_registration_t *) p[0] : 0;
 270
 271   if (tr && tr->count > 0)
 272     {
 273       dm->input_cpu_first_index = tr->first_index;
 274       dm->input_cpu_count = tr->count;
 275     }
 276
 277   vec_validate_aligned (dm->devices_by_cpu, tm->n_vlib_mains - 1,
 278                         CLIB_CACHE_LINE_BYTES);
 279
 280   vec_validate_aligned (dm->workers, tm->n_vlib_mains - 1,
 281                         CLIB_CACHE_LINE_BYTES);
 282
 283   dm->hqos_cpu_first_index = 0;
 284   dm->hqos_cpu_count = 0;
 285
 286   /* find out which cpus will be used for I/O TX */
 287   p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
 288   tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
 289
 290   if (tr_hqos && tr_hqos->count > 0)
 291     {
 292       dm->hqos_cpu_first_index = tr_hqos->first_index;
 293       dm->hqos_cpu_count = tr_hqos->count;
 294     }
 295
 296   vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
 297                         CLIB_CACHE_LINE_BYTES);
 298
 299   vec_validate_aligned (dm->hqos_threads, tm->n_vlib_mains - 1,
 300                         CLIB_CACHE_LINE_BYTES);
 301
 302 #ifdef NETMAP
 303   if (rte_netmap_probe () < 0)
 304     return clib_error_return (0, "rte netmap probe failed");
 305 #endif
 306
 307   nports = rte_eth_dev_count ();
 308   if (nports < 1)
 309     {
 310       clib_warning ("DPDK drivers found no ports...");
 311     }
 312
 313   if (CLIB_DEBUG > 0)
 314     clib_warning ("DPDK drivers found %d ports...", nports);
 315
 316   /*
 317    * All buffers are all allocated from the same rte_mempool.
 318    * Thus they all have the same number of data bytes.
 319    */
 320   dm->vlib_buffer_free_list_index =
 321     vlib_buffer_get_or_create_free_list (vm,
 322                                          VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
 323                                          "dpdk rx");
 324
 325   if (dm->conf->enable_tcp_udp_checksum)
 326     dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT
 327                                    | IP_BUFFER_L4_CHECKSUM_COMPUTED);
 328
 329   for (i = 0; i < nports; i++)
 330     {
 331       u8 addr[6];
 332       u8 vlan_strip = 0;
 333       int j;
 334       struct rte_eth_dev_info dev_info;
 335       clib_error_t *rv;
 336       struct rte_eth_link l;
 337       dpdk_device_config_t *devconf = 0;
 338       vlib_pci_addr_t pci_addr;
 339       uword *p = 0;
 340
 341       rte_eth_dev_info_get (i, &dev_info);
 342       if (dev_info.pci_dev)     /* bonded interface has no pci info */
 343         {
 344           pci_addr.domain = dev_info.pci_dev->addr.domain;
 345           pci_addr.bus = dev_info.pci_dev->addr.bus;
 346           pci_addr.slot = dev_info.pci_dev->addr.devid;
 347           pci_addr.function = dev_info.pci_dev->addr.function;
 348           p =
 349             hash_get (dm->conf->device_config_index_by_pci_addr,
 350                       pci_addr.as_u32);
 351         }
 352
 353       if (p)
 354         devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
 355       else
 356         devconf = &dm->conf->default_devconf;
 357
 358       /* Create vnet interface */
 359       vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
 360       xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
 361       xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
 362       xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
 363
 364       /* Handle interface naming for devices with multiple ports sharing same PCI ID */
 365       if (dev_info.pci_dev)
 366         {
 367           struct rte_eth_dev_info di = { 0 };
 368           rte_eth_dev_info_get (i + 1, &di);
 369           if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
 370               memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
 371                       sizeof (struct rte_pci_addr)) == 0)
 372             {
 373               xd->interface_name_suffix = format (0, "0");
 374               last_pci_addr.as_u32 = pci_addr.as_u32;
 375               last_pci_addr_port = i;
 376             }
 377           else if (pci_addr.as_u32 == last_pci_addr.as_u32)
 378             {
 379               xd->interface_name_suffix =
 380                 format (0, "%u", i - last_pci_addr_port);
 381             }
 382           else
 383             {
 384               last_pci_addr.as_u32 = ~0;
 385             }
 386         }
 387       else
 388         last_pci_addr.as_u32 = ~0;
 389
 390       clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
 391                    sizeof (struct rte_eth_txconf));
 392       if (dm->conf->no_multi_seg)
 393         {
 394           xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 395           port_conf_template.rxmode.jumbo_frame = 0;
 396         }
 397       else
 398         {
 399           xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
 400           port_conf_template.rxmode.jumbo_frame = 1;
 401         }
 402
 403       clib_memcpy (&xd->port_conf, &port_conf_template,
 404                    sizeof (struct rte_eth_conf));
 405
 406       xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
 407
 408       if (devconf->num_tx_queues > 0
 409           && devconf->num_tx_queues < xd->tx_q_used)
 410         xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
 411
 412       if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
 413         {
 414           rt->function = dpdk_input_rss_multiarch_select ();
 415           dm->use_rss = 1;
 416         }
 417
 418       if (devconf->num_rx_queues > 1
 419           && dev_info.max_rx_queues >= devconf->num_rx_queues)
 420         {
 421           xd->rx_q_used = devconf->num_rx_queues;
 422           xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
 423           if (devconf->rss_fn == 0)
 424             xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
 425               ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
 426           else
 427             xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
 428         }
 429       else
 430         xd->rx_q_used = 1;
 431
 432       xd->flags |= DPDK_DEVICE_FLAG_PMD;
 433
 434       /* workaround for drivers not setting driver_name */
 435       if ((!dev_info.driver_name) && (dev_info.pci_dev))
 436         dev_info.driver_name = dev_info.pci_dev->driver->name;
 437       ASSERT (dev_info.driver_name);
 438
 439       if (!xd->pmd)
 440         {
 441
 442
 443 #define _(s,f) else if (dev_info.driver_name &&                 \
 444                         !strcmp(dev_info.driver_name, s))       \
 445                  xd->pmd = VNET_DPDK_PMD_##f;
 446           if (0)
 447             ;
 448           foreach_dpdk_pmd
 449 #undef _
 450             else
 451             xd->pmd = VNET_DPDK_PMD_UNKNOWN;
 452
 453
 454           switch (xd->pmd)
 455             {
 456               /* 1G adapters */
 457             case VNET_DPDK_PMD_E1000EM:
 458             case VNET_DPDK_PMD_IGB:
 459             case VNET_DPDK_PMD_IGBVF:
 460               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
 461               break;
 462
 463               /* 10G adapters */
 464             case VNET_DPDK_PMD_IXGBE:
 465             case VNET_DPDK_PMD_IXGBEVF:
 466             case VNET_DPDK_PMD_THUNDERX:
 467               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
 468               xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
 469               xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
 470               break;
 471             case VNET_DPDK_PMD_DPAA2:
 472               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
 473               break;
 474
 475               /* Cisco VIC */
 476             case VNET_DPDK_PMD_ENIC:
 477               rte_eth_link_get_nowait (i, &l);
 478               xd->nb_rx_desc = DPDK_NB_RX_DESC_ENIC;
 479               if (l.link_speed == 40000)
 480                 {
 481                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
 482                   xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
 483                 }
 484               else
 485                 {
 486                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
 487                   xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
 488                 }
 489               break;
 490
 491               /* Intel Fortville */
 492             case VNET_DPDK_PMD_I40E:
 493             case VNET_DPDK_PMD_I40EVF:
 494               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
 495               xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
 496               xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
 497
 498               switch (dev_info.pci_dev->id.device_id)
 499                 {
 500                 case I40E_DEV_ID_10G_BASE_T:
 501                 case I40E_DEV_ID_SFP_XL710:
 502                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
 503                   break;
 504                 case I40E_DEV_ID_QSFP_A:
 505                 case I40E_DEV_ID_QSFP_B:
 506                 case I40E_DEV_ID_QSFP_C:
 507                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
 508                   break;
 509                 case I40E_DEV_ID_VF:
 510                   rte_eth_link_get_nowait (i, &l);
 511                   xd->port_type = l.link_speed == 10000 ?
 512                     VNET_DPDK_PORT_TYPE_ETH_10G : VNET_DPDK_PORT_TYPE_ETH_40G;
 513                   break;
 514                 default:
 515                   xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
 516                 }
 517               break;
 518
 519             case VNET_DPDK_PMD_CXGBE:
 520               switch (dev_info.pci_dev->id.device_id)
 521                 {
 522                 case 0x540d:    /* T580-CR */
 523                 case 0x5410:    /* T580-LP-cr */
 524                   xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
 525                   xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
 526                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
 527                   break;
 528                 case 0x5403:    /* T540-CR */
 529                   xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
 530                   xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
 531                   xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
 532                   break;
 533                 default:
 534                   xd->nb_rx_desc = DPDK_NB_RX_DESC_10GE;
 535                   xd->nb_tx_desc = DPDK_NB_TX_DESC_10GE;
 536                   xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
 537                 }
 538               break;
 539
 540               /* Intel Red Rock Canyon */
 541             case VNET_DPDK_PMD_FM10K:
 542               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
 543               xd->nb_rx_desc = DPDK_NB_RX_DESC_40GE;
 544               xd->nb_tx_desc = DPDK_NB_TX_DESC_40GE;
 545               break;
 546
 547               /* virtio */
 548             case VNET_DPDK_PMD_VIRTIO:
 549               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
 550               xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
 551               xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
 552               break;
 553
 554               /* vmxnet3 */
 555             case VNET_DPDK_PMD_VMXNET3:
 556               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
 557               xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
 558               break;
 559
 560             case VNET_DPDK_PMD_AF_PACKET:
 561               xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
 562               xd->af_packet_port_id = af_packet_port_id++;
 563               break;
 564
 565             case VNET_DPDK_PMD_BOND:
 566               xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
 567               break;
 568
 569             default:
 570               xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
 571             }
 572
 573           if (devconf->num_rx_desc)
 574             xd->nb_rx_desc = devconf->num_rx_desc;
 575
 576           if (devconf->num_tx_desc)
 577             xd->nb_tx_desc = devconf->num_tx_desc;
 578         }
 579
 580       /*
 581        * Ensure default mtu is not > the mtu read from the hardware.
 582        * Otherwise rte_eth_dev_configure() will fail and the port will
 583        * not be available.
 584        */
 585       if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
 586         {
 587           /*
 588            * This device does not support the platforms's max frame
 589            * size. Use it's advertised mru instead.
 590            */
 591           xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
 592         }
 593       else
 594         {
 595           xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
 596
 597           /*
 598            * Some platforms do not account for Ethernet FCS (4 bytes) in
 599            * MTU calculations. To interop with them increase mru but only
 600            * if the device's settings can support it.
 601            */
 602           if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
 603               xd->port_conf.rxmode.hw_strip_crc)
 604             {
 605               /*
 606                * Allow additional 4 bytes (for Ethernet FCS). These bytes are
 607                * stripped by h/w and so will not consume any buffer memory.
 608                */
 609               xd->port_conf.rxmode.max_rx_pkt_len += 4;
 610             }
 611         }
 612
 613 #if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
 614       /*
 615        * Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
 616        */
 617       if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
 618         {
 619           xd->port_conf.rxmode.max_rx_pkt_len = 1518;
 620           xd->port_conf.rxmode.jumbo_frame = 0;
 621         }
 622 #endif
 623
 624       if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
 625         {
 626           f64 now = vlib_time_now (vm);
 627           u32 rnd;
 628           rnd = (u32) (now * 1e6);
 629           rnd = random_u32 (&rnd);
 630           clib_memcpy (addr + 2, &rnd, sizeof (rnd));
 631           addr[0] = 2;
 632           addr[1] = 0xfe;
 633         }
 634       else
 635         rte_eth_macaddr_get (i, (struct ether_addr *) addr);
 636
 637       if (xd->tx_q_used < tm->n_vlib_mains)
 638         dpdk_device_lock_init (xd);
 639
 640       xd->device_index = xd - dm->devices;
 641       ASSERT (i == xd->device_index);
 642       xd->per_interface_next_index = ~0;
 643
 644       /* assign interface to input thread */
 645       dpdk_device_and_queue_t *dq;
 646       int q;
 647
 648       if (devconf->workers)
 649         {
 650           int i;
 651           q = 0;
 652           /* *INDENT-OFF* */
 653           clib_bitmap_foreach (i, devconf->workers, ({
 654             int cpu = dm->input_cpu_first_index + i;
 655             unsigned lcore = vlib_worker_threads[cpu].lcore_id;
 656             vec_validate(xd->cpu_socket_id_by_queue, q);
 657             xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id(lcore);
 658             vec_add2(dm->devices_by_cpu[cpu], dq, 1);
 659             dq->device = xd->device_index;
 660             dq->queue_id = q++;
 661           }));
 662           /* *INDENT-ON* */
 663         }
 664       else
 665         for (q = 0; q < xd->rx_q_used; q++)
 666           {
 667             int cpu = dm->input_cpu_first_index + next_cpu;
 668             unsigned lcore = vlib_worker_threads[cpu].lcore_id;
 669
 670             /*
 671              * numa node for worker thread handling this queue
 672              * needed for taking buffers from the right mempool
 673              */
 674             vec_validate (xd->cpu_socket_id_by_queue, q);
 675             xd->cpu_socket_id_by_queue[q] = rte_lcore_to_socket_id (lcore);
 676
 677             /*
 678              * construct vector of (device,queue) pairs for each worker thread
 679              */
 680             vec_add2 (dm->devices_by_cpu[cpu], dq, 1);
 681             dq->device = xd->device_index;
 682             dq->queue_id = q;
 683
 684             next_cpu++;
 685             if (next_cpu == dm->input_cpu_count)
 686               next_cpu = 0;
 687           }
 688
 689
 690       if (devconf->hqos_enabled)
 691         {
 692           xd->flags |= DPDK_DEVICE_FLAG_HQOS;
 693
 694           if (devconf->hqos.hqos_thread_valid)
 695             {
 696               int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
 697
 698               if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
 699                 return clib_error_return (0, "invalid HQoS thread index");
 700
 701               vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
 702               dq->device = xd->device_index;
 703               dq->queue_id = 0;
 704             }
 705           else
 706             {
 707               int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
 708
 709               if (dm->hqos_cpu_count == 0)
 710                 return clib_error_return (0, "no HQoS threads available");
 711
 712               vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
 713               dq->device = xd->device_index;
 714               dq->queue_id = 0;
 715
 716               next_hqos_cpu++;
 717               if (next_hqos_cpu == dm->hqos_cpu_count)
 718                 next_hqos_cpu = 0;
 719
 720               devconf->hqos.hqos_thread_valid = 1;
 721               devconf->hqos.hqos_thread = cpu;
 722             }
 723         }
 724
 725       vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
 726                             CLIB_CACHE_LINE_BYTES);
 727       for (j = 0; j < tm->n_vlib_mains; j++)
 728         {
 729           vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
 730                            sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
 731           vec_reset_length (xd->tx_vectors[j]);
 732         }
 733
 734       vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
 735                             CLIB_CACHE_LINE_BYTES);
 736       for (j = 0; j < xd->rx_q_used; j++)
 737         {
 738           vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
 739                                 CLIB_CACHE_LINE_BYTES);
 740           vec_reset_length (xd->rx_vectors[j]);
 741         }
 742
 743       rv = dpdk_port_setup (dm, xd);
 744
 745       if (rv)
 746         return rv;
 747
 748       if (devconf->hqos_enabled)
 749         {
 750           rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
 751           if (rv < 0)
 752             return rv;
 753         }
 754
 755       /* count the number of descriptors used for this device */
 756       nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
 757
 758       error = ethernet_register_interface
 759         (dm->vnet_main, dpdk_device_class.index, xd->device_index,
 760          /* ethernet address */ addr,
 761          &xd->vlib_hw_if_index, dpdk_flag_change);
 762       if (error)
 763         return error;
 764
 765       sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->vlib_hw_if_index);
 766       xd->vlib_sw_if_index = sw->sw_if_index;
 767       hi = vnet_get_hw_interface (dm->vnet_main, xd->vlib_hw_if_index);
 768
 769       /*
 770        * DAW-FIXME: The Cisco VIC firmware does not provide an api for a
 771        *            driver to dynamically change the mtu.  If/when the
 772        *            VIC firmware gets fixed, then this should be removed.
 773        */
 774       if (xd->pmd == VNET_DPDK_PMD_ENIC)
 775         {
 776           /*
 777            * Initialize mtu to what has been set by CIMC in the firmware cfg.
 778            */
 779           hi->max_packet_bytes = dev_info.max_rx_pktlen;
 780           if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
 781             vlan_strip = 1;     /* remove vlan tag from VIC port by default */
 782           else
 783             clib_warning ("VLAN strip disabled for interface\n");
 784         }
 785       else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
 786         vlan_strip = 1;
 787
 788       if (vlan_strip)
 789         {
 790           int vlan_off;
 791           vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
 792           vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
 793           if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
 794             clib_warning ("VLAN strip enabled for interface\n");
 795           else
 796             clib_warning ("VLAN strip cannot be supported by interface\n");
 797         }
 798
 799 #if RTE_VERSION < RTE_VERSION_NUM(16, 4, 0, 0)
 800       /*
 801        * Older VMXNET3 driver doesn't support jumbo / multi-buffer pkts
 802        */
 803       else if (xd->pmd == VNET_DPDK_PMD_VMXNET3)
 804         hi->max_packet_bytes = 1518;
 805 #endif
 806
 807       hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
 808         xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
 809
 810       rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
 811     }
 812
 813   if (nb_desc > dm->conf->num_mbufs)
 814     clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
 815                   dm->conf->num_mbufs, nb_desc);
 816
 817   /* init next vhost-user if index */
 818   dm->next_vu_if_id = 0;
 819
 820   return 0;
 821 }
 822
 823 static void
 824 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
 825 {
 826   vlib_pci_main_t *pm = &pci_main;
 827   clib_error_t *error;
 828   vlib_pci_device_t *d;
 829   u8 *pci_addr = 0;
 830   int num_whitelisted = vec_len (conf->dev_confs);
 831
 832   /* *INDENT-OFF* */
 833   pool_foreach (d, pm->pci_devs, ({
 834     dpdk_device_config_t * devconf = 0;
 835     vec_reset_length (pci_addr);
 836     pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
 837
 838     if (d->device_class != PCI_CLASS_NETWORK_ETHERNET)
 839       continue;
 840
 841     if (num_whitelisted)
 842       {
 843         uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
 844
 845         if (!p)
 846           continue;
 847
 848         devconf = pool_elt_at_index (conf->dev_confs, p[0]);
 849       }
 850
 851     /* virtio */
 852     if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
 853       ;
 854     /* vmxnet3 */
 855     else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
 856       ;
 857     /* all Intel devices */
 858     else if (d->vendor_id == 0x8086)
 859       ;
 860     /* Cisco VIC */
 861     else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
 862       ;
 863     /* Chelsio T4/T5 */
 864     else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
 865       ;
 866     else
 867       {
 868         clib_warning ("Unsupported Ethernet PCI device 0x%04x:0x%04x found "
 869                       "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
 870                       pci_addr);
 871         continue;
 872       }
 873
 874     error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
 875
 876     if (error)
 877       {
 878         if (devconf == 0)
 879           {
 880             pool_get (conf->dev_confs, devconf);
 881             hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
 882                       devconf - conf->dev_confs);
 883             devconf->pci_addr.as_u32 = d->bus_address.as_u32;
 884           }
 885         devconf->is_blacklisted = 1;
 886         clib_error_report (error);
 887       }
 888   }));
 889   /* *INDENT-ON* */
 890   vec_free (pci_addr);
 891 }
 892
 893 static clib_error_t *
 894 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
 895                     unformat_input_t * input, u8 is_default)
 896 {
 897   clib_error_t *error = 0;
 898   uword *p;
 899   dpdk_device_config_t *devconf;
 900   unformat_input_t sub_input;
 901
 902   if (is_default)
 903     {
 904       devconf = &conf->default_devconf;
 905     }
 906   else
 907     {
 908       p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
 909
 910       if (!p)
 911         {
 912           pool_get (conf->dev_confs, devconf);
 913           hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
 914                     devconf - conf->dev_confs);
 915         }
 916       else
 917         return clib_error_return (0,
 918                                   "duplicate configuration for PCI address %U",
 919                                   format_vlib_pci_addr, &pci_addr);
 920     }
 921
 922   devconf->pci_addr.as_u32 = pci_addr.as_u32;
 923   devconf->hqos_enabled = 0;
 924   dpdk_device_config_hqos_default (&devconf->hqos);
 925
 926   if (!input)
 927     return 0;
 928
 929   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
 930     {
 931       if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
 932         ;
 933       else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
 934         ;
 935       else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
 936         ;
 937       else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
 938         ;
 939       else if (unformat (input, "workers %U", unformat_bitmap_list,
 940                          &devconf->workers))
 941         ;
 942       else
 943         if (unformat
 944             (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
 945         {
 946           error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
 947           if (error)
 948             break;
 949         }
 950       else if (unformat (input, "vlan-strip-offload off"))
 951         devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
 952       else if (unformat (input, "vlan-strip-offload on"))
 953         devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
 954       else
 955         if (unformat
 956             (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
 957         {
 958           devconf->hqos_enabled = 1;
 959           error = unformat_hqos (&sub_input, &devconf->hqos);
 960           if (error)
 961             break;
 962         }
 963       else if (unformat (input, "hqos"))
 964         {
 965           devconf->hqos_enabled = 1;
 966         }
 967       else
 968         {
 969           error = clib_error_return (0, "unknown input `%U'",
 970                                      format_unformat_error, input);
 971           break;
 972         }
 973     }
 974
 975   if (error)
 976     return error;
 977
 978   if (devconf->workers && devconf->num_rx_queues == 0)
 979     devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
 980   else if (devconf->workers &&
 981            clib_bitmap_count_set_bits (devconf->workers) !=
 982            devconf->num_rx_queues)
 983     error =
 984       clib_error_return (0,
 985                          "%U: number of worker threadds must be "
 986                          "equal to number of rx queues", format_vlib_pci_addr,
 987                          &pci_addr);
 988
 989   return error;
 990 }
 991
 992 static clib_error_t *
 993 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
 994 {
 995   clib_error_t *error = 0;
 996   dpdk_main_t *dm = &dpdk_main;
 997   dpdk_config_main_t *conf = &dpdk_config_main;
 998   vlib_thread_main_t *tm = vlib_get_thread_main ();
 999   dpdk_device_config_t *devconf;
1000   vlib_pci_addr_t pci_addr;
1001   unformat_input_t sub_input;
1002   u8 *s, *tmp = 0;
1003   u8 *rte_cmd = 0, *ethname = 0;
1004   u32 log_level;
1005   int ret, i;
1006   int num_whitelisted = 0;
1007   u8 no_pci = 0;
1008   u8 no_huge = 0;
1009   u8 huge_dir = 0;
1010   u8 file_prefix = 0;
1011   u8 *socket_mem = 0;
1012
1013   conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1014
1015   // MATT-FIXME: inverted virtio-vhost logic to use virtio by default
1016   conf->use_virtio_vhost = 1;
1017
1018   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1019     {
1020       /* Prime the pump */
1021       if (unformat (input, "no-hugetlb"))
1022         {
1023           vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
1024           no_huge = 1;
1025         }
1026
1027       else if (unformat (input, "enable-tcp-udp-checksum"))
1028         conf->enable_tcp_udp_checksum = 1;
1029
1030       else if (unformat (input, "decimal-interface-names"))
1031         conf->interface_name_format_decimal = 1;
1032
1033       else if (unformat (input, "no-multi-seg"))
1034         conf->no_multi_seg = 1;
1035
1036       else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1037                          &sub_input))
1038         {
1039           error =
1040             dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1041                                 1);
1042
1043           if (error)
1044             return error;
1045         }
1046       else
1047         if (unformat
1048             (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1049              unformat_vlib_cli_sub_input, &sub_input))
1050         {
1051           error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1052
1053           if (error)
1054             return error;
1055
1056           num_whitelisted++;
1057         }
1058       else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1059         {
1060           error = dpdk_device_config (conf, pci_addr, 0, 0);
1061
1062           if (error)
1063             return error;
1064
1065           num_whitelisted++;
1066         }
1067       else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
1068         ;
1069       else if (unformat (input, "kni %d", &conf->num_kni))
1070         ;
1071       else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1072         ;
1073       else if (unformat (input, "socket-mem %s", &socket_mem))
1074         ;
1075       else
1076         if (unformat
1077             (input, "vhost-user-coalesce-frames %d",
1078              &conf->vhost_coalesce_frames))
1079         ;
1080       else
1081         if (unformat
1082             (input, "vhost-user-coalesce-time %f",
1083              &conf->vhost_coalesce_time))
1084         ;
1085       else if (unformat (input, "enable-vhost-user"))
1086         conf->use_virtio_vhost = 0;
1087       else if (unformat (input, "no-pci"))
1088         {
1089           no_pci = 1;
1090           tmp = format (0, "--no-pci%c", 0);
1091           vec_add1 (conf->eal_init_args, tmp);
1092         }
1093       else if (unformat (input, "poll-sleep %d", &dm->poll_sleep))
1094         ;
1095
1096 #define _(a)                                    \
1097       else if (unformat(input, #a))             \
1098         {                                       \
1099           tmp = format (0, "--%s%c", #a, 0);    \
1100           vec_add1 (conf->eal_init_args, tmp);    \
1101         }
1102       foreach_eal_double_hyphen_predicate_arg
1103 #undef _
1104 #define _(a)                                          \
1105         else if (unformat(input, #a " %s", &s))       \
1106           {                                           \
1107             if (!strncmp(#a, "huge-dir", 8))          \
1108               huge_dir = 1;                           \
1109             else if (!strncmp(#a, "file-prefix", 11)) \
1110               file_prefix = 1;                        \
1111             tmp = format (0, "--%s%c", #a, 0);        \
1112             vec_add1 (conf->eal_init_args, tmp);      \
1113             vec_add1 (s, 0);                          \
1114             vec_add1 (conf->eal_init_args, s);        \
1115           }
1116         foreach_eal_double_hyphen_arg
1117 #undef _
1118 #define _(a,b)                                          \
1119           else if (unformat(input, #a " %s", &s))       \
1120             {                                           \
1121               tmp = format (0, "-%s%c", #b, 0);         \
1122               vec_add1 (conf->eal_init_args, tmp);      \
1123               vec_add1 (s, 0);                          \
1124               vec_add1 (conf->eal_init_args, s);        \
1125             }
1126         foreach_eal_single_hyphen_arg
1127 #undef _
1128 #define _(a,b)                                          \
1129             else if (unformat(input, #a " %s", &s))     \
1130               {                                         \
1131                 tmp = format (0, "-%s%c", #b, 0);       \
1132                 vec_add1 (conf->eal_init_args, tmp);    \
1133                 vec_add1 (s, 0);                        \
1134                 vec_add1 (conf->eal_init_args, s);      \
1135                 conf->a##_set_manually = 1;             \
1136               }
1137         foreach_eal_single_hyphen_mandatory_arg
1138 #undef _
1139         else if (unformat (input, "default"))
1140         ;
1141
1142       else if (unformat_skip_white_space (input))
1143         ;
1144       else
1145         {
1146           error = clib_error_return (0, "unknown input `%U'",
1147                                      format_unformat_error, input);
1148           goto done;
1149         }
1150     }
1151
1152   if (!conf->uio_driver_name)
1153     conf->uio_driver_name = format (0, "igb_uio%c", 0);
1154
1155   /*
1156    * Use 1G huge pages if available.
1157    */
1158   if (!no_huge && !huge_dir)
1159     {
1160       u32 x, *mem_by_socket = 0;
1161       uword c = 0;
1162       u8 use_1g = 1;
1163       u8 use_2m = 1;
1164       u8 less_than_1g = 1;
1165       int rv;
1166
1167       umount (DEFAULT_HUGE_DIR);
1168
1169       /* Process "socket-mem" parameter value */
1170       if (vec_len (socket_mem))
1171         {
1172           unformat_input_t in;
1173           unformat_init_vector (&in, socket_mem);
1174           while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1175             {
1176               if (unformat (&in, "%u,", &x))
1177                 ;
1178               else if (unformat (&in, "%u", &x))
1179                 ;
1180               else if (unformat (&in, ","))
1181                 x = 0;
1182               else
1183                 break;
1184
1185               vec_add1 (mem_by_socket, x);
1186
1187               if (x > 1023)
1188                 less_than_1g = 0;
1189             }
1190           /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1191           unformat_free (&in);
1192           socket_mem = 0;
1193         }
1194       else
1195         {
1196           /* *INDENT-OFF* */
1197           clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1198             {
1199               vec_validate(mem_by_socket, c);
1200               mem_by_socket[c] = 256; /* default per-socket mem */
1201             }
1202           ));
1203           /* *INDENT-ON* */
1204         }
1205
1206       /* check if available enough 1GB pages for each socket */
1207       /* *INDENT-OFF* */
1208       clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1209         {
1210           int pages_avail, page_size, mem;
1211
1212           vec_validate(mem_by_socket, c);
1213           mem = mem_by_socket[c];
1214
1215           page_size = 1024;
1216           pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1217
1218           if (pages_avail < 0 || page_size * pages_avail < mem)
1219             use_1g = 0;
1220
1221           page_size = 2;
1222           pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1223
1224           if (pages_avail < 0 || page_size * pages_avail < mem)
1225             use_2m = 0;
1226       }));
1227       /* *INDENT-ON* */
1228
1229       if (mem_by_socket == 0)
1230         {
1231           error = clib_error_return (0, "mem_by_socket NULL");
1232           goto done;
1233         }
1234       _vec_len (mem_by_socket) = c + 1;
1235
1236       /* regenerate socket_mem string */
1237       vec_foreach_index (x, mem_by_socket)
1238         socket_mem = format (socket_mem, "%s%u",
1239                              socket_mem ? "," : "", mem_by_socket[x]);
1240       socket_mem = format (socket_mem, "%c", 0);
1241
1242       vec_free (mem_by_socket);
1243
1244       rv = mkdir (VPP_RUN_DIR, 0755);
1245       if (rv && errno != EEXIST)
1246         {
1247           error = clib_error_return (0, "mkdir '%s' failed errno %d",
1248                                      VPP_RUN_DIR, errno);
1249           goto done;
1250         }
1251
1252       rv = mkdir (DEFAULT_HUGE_DIR, 0755);
1253       if (rv && errno != EEXIST)
1254         {
1255           error = clib_error_return (0, "mkdir '%s' failed errno %d",
1256                                      DEFAULT_HUGE_DIR, errno);
1257           goto done;
1258         }
1259
1260       if (use_1g && !(less_than_1g && use_2m))
1261         {
1262           rv =
1263             mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1264         }
1265       else if (use_2m)
1266         {
1267           rv = mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1268         }
1269       else
1270         {
1271           return clib_error_return (0, "not enough free huge pages");
1272         }
1273
1274       if (rv)
1275         {
1276           error = clib_error_return (0, "mount failed %d", errno);
1277           goto done;
1278         }
1279
1280       tmp = format (0, "--huge-dir%c", 0);
1281       vec_add1 (conf->eal_init_args, tmp);
1282       tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1283       vec_add1 (conf->eal_init_args, tmp);
1284       if (!file_prefix)
1285         {
1286           tmp = format (0, "--file-prefix%c", 0);
1287           vec_add1 (conf->eal_init_args, tmp);
1288           tmp = format (0, "vpp%c", 0);
1289           vec_add1 (conf->eal_init_args, tmp);
1290         }
1291     }
1292
1293   vec_free (rte_cmd);
1294   vec_free (ethname);
1295
1296   if (error)
1297     return error;
1298
1299   /* I'll bet that -c and -n must be the first and second args... */
1300   if (!conf->coremask_set_manually)
1301     {
1302       vlib_thread_registration_t *tr;
1303       uword *coremask = 0;
1304       int i;
1305
1306       /* main thread core */
1307       coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1308
1309       for (i = 0; i < vec_len (tm->registrations); i++)
1310         {
1311           tr = tm->registrations[i];
1312           coremask = clib_bitmap_or (coremask, tr->coremask);
1313         }
1314
1315       vec_insert (conf->eal_init_args, 2, 1);
1316       conf->eal_init_args[1] = (u8 *) "-c";
1317       tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1318       conf->eal_init_args[2] = tmp;
1319       clib_bitmap_free (coremask);
1320     }
1321
1322   if (!conf->nchannels_set_manually)
1323     {
1324       vec_insert (conf->eal_init_args, 2, 3);
1325       conf->eal_init_args[3] = (u8 *) "-n";
1326       tmp = format (0, "%d", conf->nchannels);
1327       conf->eal_init_args[4] = tmp;
1328     }
1329
1330   if (no_pci == 0 && geteuid () == 0)
1331     dpdk_bind_devices_to_uio (conf);
1332
1333 #define _(x) \
1334     if (devconf->x == 0 && conf->default_devconf.x > 0) \
1335       devconf->x = conf->default_devconf.x ;
1336
1337   /* *INDENT-OFF* */
1338   pool_foreach (devconf, conf->dev_confs, ({
1339
1340     /* default per-device config items */
1341     foreach_dpdk_device_config_item
1342
1343     /* add DPDK EAL whitelist/blacklist entry */
1344     if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1345       {
1346         tmp = format (0, "-w%c", 0);
1347         vec_add1 (conf->eal_init_args, tmp);
1348         tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1349         vec_add1 (conf->eal_init_args, tmp);
1350       }
1351     else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1352       {
1353         tmp = format (0, "-b%c", 0);
1354         vec_add1 (conf->eal_init_args, tmp);
1355         tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1356         vec_add1 (conf->eal_init_args, tmp);
1357       }
1358   }));
1359   /* *INDENT-ON* */
1360
1361 #undef _
1362
1363   /* set master-lcore */
1364   tmp = format (0, "--master-lcore%c", 0);
1365   vec_add1 (conf->eal_init_args, tmp);
1366   tmp = format (0, "%u%c", tm->main_lcore, 0);
1367   vec_add1 (conf->eal_init_args, tmp);
1368
1369   /* set socket-mem */
1370   tmp = format (0, "--socket-mem%c", 0);
1371   vec_add1 (conf->eal_init_args, tmp);
1372   tmp = format (0, "%s%c", socket_mem, 0);
1373   vec_add1 (conf->eal_init_args, tmp);
1374
1375   /* NULL terminate the "argv" vector, in case of stupidity */
1376   vec_add1 (conf->eal_init_args, 0);
1377   _vec_len (conf->eal_init_args) -= 1;
1378
1379   /* Set up DPDK eal and packet mbuf pool early. */
1380
1381   log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1382
1383   rte_set_log_level (log_level);
1384
1385   vm = vlib_get_main ();
1386
1387   /* make copy of args as rte_eal_init tends to mess up with arg array */
1388   for (i = 1; i < vec_len (conf->eal_init_args); i++)
1389     conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1390                                       conf->eal_init_args[i]);
1391
1392   ret =
1393     rte_eal_init (vec_len (conf->eal_init_args),
1394                   (char **) conf->eal_init_args);
1395
1396   /* lazy umount hugepages */
1397   umount2 (DEFAULT_HUGE_DIR, MNT_DETACH);
1398
1399   if (ret < 0)
1400     return clib_error_return (0, "rte_eal_init returned %d", ret);
1401
1402   /* Dump the physical memory layout prior to creating the mbuf_pool */
1403   fprintf (stdout, "DPDK physical memory layout:\n");
1404   rte_dump_physmem_layout (stdout);
1405
1406   /* main thread 1st */
1407   error = vlib_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1408   if (error)
1409     return error;
1410
1411   for (i = 0; i < RTE_MAX_LCORE; i++)
1412     {
1413       error = vlib_buffer_pool_create (vm, conf->num_mbufs,
1414                                        rte_lcore_to_socket_id (i));
1415       if (error)
1416         return error;
1417     }
1418
1419 done:
1420   return error;
1421 }
1422
1423 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1424
1425 void
1426 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1427 {
1428   vnet_main_t *vnm = vnet_get_main ();
1429   struct rte_eth_link prev_link = xd->link;
1430   u32 hw_flags = 0;
1431   u8 hw_flags_chg = 0;
1432
1433   /* only update link state for PMD interfaces */
1434   if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1435     return;
1436
1437   xd->time_last_link_update = now ? now : xd->time_last_link_update;
1438   memset (&xd->link, 0, sizeof (xd->link));
1439   rte_eth_link_get_nowait (xd->device_index, &xd->link);
1440
1441   if (LINK_STATE_ELOGS)
1442     {
1443       vlib_main_t *vm = vlib_get_main ();
1444       ELOG_TYPE_DECLARE (e) =
1445       {
1446       .format =
1447           "update-link-state: sw_if_index %d, admin_up %d,"
1448           "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1449
1450       struct
1451       {
1452         u32 sw_if_index;
1453         u8 admin_up;
1454         u8 old_link_state;
1455         u8 new_link_state;
1456       } *ed;
1457       ed = ELOG_DATA (&vm->elog_main, e);
1458       ed->sw_if_index = xd->vlib_sw_if_index;
1459       ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1460       ed->old_link_state = (u8)
1461         vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index);
1462       ed->new_link_state = (u8) xd->link.link_status;
1463     }
1464
1465   if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) &&
1466       ((xd->link.link_status != 0) ^
1467        vnet_hw_interface_is_link_up (vnm, xd->vlib_hw_if_index)))
1468     {
1469       hw_flags_chg = 1;
1470       hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1471     }
1472
1473   if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1474     {
1475       hw_flags_chg = 1;
1476       switch (xd->link.link_duplex)
1477         {
1478         case ETH_LINK_HALF_DUPLEX:
1479           hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1480           break;
1481         case ETH_LINK_FULL_DUPLEX:
1482           hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1483           break;
1484         default:
1485           break;
1486         }
1487     }
1488 #if RTE_VERSION >= RTE_VERSION_NUM(16, 4, 0, 0)
1489   if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1490     {
1491       hw_flags_chg = 1;
1492       switch (xd->link.link_speed)
1493         {
1494         case ETH_SPEED_NUM_10M:
1495           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1496           break;
1497         case ETH_SPEED_NUM_100M:
1498           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1499           break;
1500         case ETH_SPEED_NUM_1G:
1501           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1502           break;
1503         case ETH_SPEED_NUM_10G:
1504           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1505           break;
1506         case ETH_SPEED_NUM_40G:
1507           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1508           break;
1509         case 0:
1510           break;
1511         default:
1512           clib_warning ("unknown link speed %d", xd->link.link_speed);
1513           break;
1514         }
1515     }
1516 #else
1517   if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1518     {
1519       hw_flags_chg = 1;
1520       switch (xd->link.link_speed)
1521         {
1522         case ETH_LINK_SPEED_10:
1523           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1524           break;
1525         case ETH_LINK_SPEED_100:
1526           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1527           break;
1528         case ETH_LINK_SPEED_1000:
1529           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1530           break;
1531         case ETH_LINK_SPEED_10000:
1532           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1533           break;
1534         case ETH_LINK_SPEED_40G:
1535           hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1536           break;
1537         case 0:
1538           break;
1539         default:
1540           clib_warning ("unknown link speed %d", xd->link.link_speed);
1541           break;
1542         }
1543     }
1544 #endif
1545   if (hw_flags_chg)
1546     {
1547       if (LINK_STATE_ELOGS)
1548         {
1549           vlib_main_t *vm = vlib_get_main ();
1550
1551           ELOG_TYPE_DECLARE (e) =
1552           {
1553           .format =
1554               "update-link-state: sw_if_index %d, new flags %d",.format_args
1555               = "i4i4",};
1556
1557           struct
1558           {
1559             u32 sw_if_index;
1560             u32 flags;
1561           } *ed;
1562           ed = ELOG_DATA (&vm->elog_main, e);
1563           ed->sw_if_index = xd->vlib_sw_if_index;
1564           ed->flags = hw_flags;
1565         }
1566       vnet_hw_interface_set_flags (vnm, xd->vlib_hw_if_index, hw_flags);
1567     }
1568 }
1569
1570 static uword
1571 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1572 {
1573   clib_error_t *error;
1574   vnet_main_t *vnm = vnet_get_main ();
1575   dpdk_main_t *dm = &dpdk_main;
1576   ethernet_main_t *em = &ethernet_main;
1577   dpdk_device_t *xd;
1578   vlib_thread_main_t *tm = vlib_get_thread_main ();
1579 #if DPDK_VHOST_USER
1580   void *vu_state;
1581 #endif
1582   int i;
1583
1584   error = dpdk_lib_init (dm);
1585
1586   /*
1587    * Turn on the input node if we found some devices to drive
1588    * and we're not running worker threads or i/o threads
1589    */
1590
1591   if (error == 0 && vec_len (dm->devices) > 0)
1592     {
1593       if (tm->n_vlib_mains == 1)
1594         vlib_node_set_state (vm, dpdk_input_node.index,
1595                              VLIB_NODE_STATE_POLLING);
1596       else
1597         for (i = 0; i < tm->n_vlib_mains; i++)
1598           if (vec_len (dm->devices_by_cpu[i]) > 0)
1599             vlib_node_set_state (vlib_mains[i], dpdk_input_node.index,
1600                                  VLIB_NODE_STATE_POLLING);
1601     }
1602
1603   if (error)
1604     clib_error_report (error);
1605
1606 #if DPDK_VHOST_USER
1607   dpdk_vhost_user_process_init (&vu_state);
1608 #endif
1609
1610   tm->worker_thread_release = 1;
1611
1612   f64 now = vlib_time_now (vm);
1613   vec_foreach (xd, dm->devices)
1614   {
1615     dpdk_update_link_state (xd, now);
1616   }
1617
1618   {
1619     /*
1620      * Extra set up for bond interfaces:
1621      *  1. Setup MACs for bond interfaces and their slave links which was set
1622      *     in dpdk_port_setup() but needs to be done again here to take effect.
1623      *  2. Set up info for bond interface related CLI support.
1624      */
1625     int nports = rte_eth_dev_count ();
1626     if (nports > 0)
1627       {
1628         for (i = 0; i < nports; i++)
1629           {
1630             struct rte_eth_dev_info dev_info;
1631             rte_eth_dev_info_get (i, &dev_info);
1632             if (!dev_info.driver_name)
1633               dev_info.driver_name = dev_info.pci_dev->driver->name;
1634             ASSERT (dev_info.driver_name);
1635             if (strncmp (dev_info.driver_name, "rte_bond_pmd", 12) == 0)
1636               {
1637                 u8 addr[6];
1638                 u8 slink[16];
1639                 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1640                 if (nlink > 0)
1641                   {
1642                     vnet_hw_interface_t *bhi;
1643                     ethernet_interface_t *bei;
1644                     int rv;
1645
1646                     /* Get MAC of 1st slave link */
1647                     rte_eth_macaddr_get (slink[0],
1648                                          (struct ether_addr *) addr);
1649                     /* Set MAC of bounded interface to that of 1st slave link */
1650                     rv =
1651                       rte_eth_bond_mac_address_set (i,
1652                                                     (struct ether_addr *)
1653                                                     addr);
1654                     if (rv < 0)
1655                       clib_warning ("Failed to set MAC address");
1656
1657                     /* Populate MAC of bonded interface in VPP hw tables */
1658                     bhi =
1659                       vnet_get_hw_interface (vnm,
1660                                              dm->devices[i].vlib_hw_if_index);
1661                     bei =
1662                       pool_elt_at_index (em->interfaces, bhi->hw_instance);
1663                     clib_memcpy (bhi->hw_address, addr, 6);
1664                     clib_memcpy (bei->address, addr, 6);
1665                     /* Init l3 packet size allowed on bonded interface */
1666                     bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1667                     bhi->max_l3_packet_bytes[VLIB_RX] =
1668                       bhi->max_l3_packet_bytes[VLIB_TX] =
1669                       ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1670                     while (nlink >= 1)
1671                       {         /* for all slave links */
1672                         int slave = slink[--nlink];
1673                         dpdk_device_t *sdev = &dm->devices[slave];
1674                         vnet_hw_interface_t *shi;
1675                         vnet_sw_interface_t *ssi;
1676                         /* Add MAC to all slave links except the first one */
1677                         if (nlink)
1678                           rte_eth_dev_mac_addr_add (slave,
1679                                                     (struct ether_addr *)
1680                                                     addr, 0);
1681                         /* Set slaves bitmap for bonded interface */
1682                         bhi->bond_info =
1683                           clib_bitmap_set (bhi->bond_info,
1684                                            sdev->vlib_hw_if_index, 1);
1685                         /* Set slave link flags on slave interface */
1686                         shi =
1687                           vnet_get_hw_interface (vnm, sdev->vlib_hw_if_index);
1688                         ssi =
1689                           vnet_get_sw_interface (vnm, sdev->vlib_sw_if_index);
1690                         shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1691                         ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1692
1693                         /* Set l3 packet size allowed as the lowest of slave */
1694                         if (bhi->max_l3_packet_bytes[VLIB_RX] >
1695                             shi->max_l3_packet_bytes[VLIB_RX])
1696                           bhi->max_l3_packet_bytes[VLIB_RX] =
1697                             bhi->max_l3_packet_bytes[VLIB_TX] =
1698                             shi->max_l3_packet_bytes[VLIB_RX];
1699
1700                         /* Set max packet size allowed as the lowest of slave */
1701                         if (bhi->max_packet_bytes > shi->max_packet_bytes)
1702                           bhi->max_packet_bytes = shi->max_packet_bytes;
1703                       }
1704                   }
1705               }
1706           }
1707       }
1708   }
1709
1710   while (1)
1711     {
1712       /*
1713        * check each time through the loop in case intervals are changed
1714        */
1715       f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1716         dm->link_state_poll_interval : dm->stat_poll_interval;
1717
1718       vlib_process_wait_for_event_or_clock (vm, min_wait);
1719
1720       if (dpdk_get_admin_up_down_in_progress ())
1721         /* skip the poll if an admin up down is in progress (on any interface) */
1722         continue;
1723
1724       vec_foreach (xd, dm->devices)
1725       {
1726         f64 now = vlib_time_now (vm);
1727         if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1728           dpdk_update_counters (xd, now);
1729         if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1730           dpdk_update_link_state (xd, now);
1731
1732 #if DPDK_VHOST_USER
1733         if (xd->flags & DPDK_DEVICE_FLAG_VHOST_USER)
1734           if (dpdk_vhost_user_process_if (vm, xd, vu_state) != 0)
1735             continue;
1736 #endif
1737       }
1738     }
1739
1740 #if DPDK_VHOST_USER
1741   dpdk_vhost_user_process_cleanup (vu_state);
1742 #endif
1743
1744   return 0;
1745 }
1746
1747 /* *INDENT-OFF* */
1748 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1749     .function = dpdk_process,
1750     .type = VLIB_NODE_TYPE_PROCESS,
1751     .name = "dpdk-process",
1752     .process_log2_n_stack_bytes = 17,
1753 };
1754 /* *INDENT-ON* */
1755
1756 int
1757 dpdk_set_stat_poll_interval (f64 interval)
1758 {
1759   if (interval < DPDK_MIN_STATS_POLL_INTERVAL)
1760     return (VNET_API_ERROR_INVALID_VALUE);
1761
1762   dpdk_main.stat_poll_interval = interval;
1763
1764   return 0;
1765 }
1766
1767 int
1768 dpdk_set_link_state_poll_interval (f64 interval)
1769 {
1770   if (interval < DPDK_MIN_LINK_POLL_INTERVAL)
1771     return (VNET_API_ERROR_INVALID_VALUE);
1772
1773   dpdk_main.link_state_poll_interval = interval;
1774
1775   return 0;
1776 }
1777
1778 clib_error_t *
1779 dpdk_init (vlib_main_t * vm)
1780 {
1781   dpdk_main_t *dm = &dpdk_main;
1782   vlib_node_t *ei;
1783   clib_error_t *error = 0;
1784   vlib_thread_main_t *tm = vlib_get_thread_main ();
1785
1786   /* verify that structs are cacheline aligned */
1787   ASSERT (offsetof (dpdk_device_t, cacheline0) == 0);
1788   ASSERT (offsetof (dpdk_device_t, cacheline1) == CLIB_CACHE_LINE_BYTES);
1789   ASSERT (offsetof (dpdk_worker_t, cacheline0) == 0);
1790   ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0);
1791
1792   dm->vlib_main = vm;
1793   dm->vnet_main = vnet_get_main ();
1794   dm->conf = &dpdk_config_main;
1795
1796   ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1797   if (ei == 0)
1798     return clib_error_return (0, "ethernet-input node AWOL");
1799
1800   dm->ethernet_input_node_index = ei->index;
1801
1802   dm->conf->nchannels = 4;
1803   dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1804   vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1805
1806   dm->dpdk_device_by_kni_port_id = hash_create (0, sizeof (uword));
1807   dm->vu_sw_if_index_by_listener_fd = hash_create (0, sizeof (uword));
1808   dm->vu_sw_if_index_by_sock_fd = hash_create (0, sizeof (uword));
1809
1810   /* $$$ use n_thread_stacks since it's known-good at this point */
1811   vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1812
1813   /* initialize EFD (early fast discard) default settings */
1814   dm->efd.enabled = DPDK_EFD_DISABLED;
1815   dm->efd.queue_hi_thresh = ((DPDK_EFD_DEFAULT_DEVICE_QUEUE_HI_THRESH_PCT *
1816                               DPDK_NB_RX_DESC_10GE) / 100);
1817   dm->efd.consec_full_frames_hi_thresh =
1818     DPDK_EFD_DEFAULT_CONSEC_FULL_FRAMES_HI_THRESH;
1819
1820   /* vhost-user coalescence frames defaults */
1821   dm->conf->vhost_coalesce_frames = 32;
1822   dm->conf->vhost_coalesce_time = 1e-3;
1823
1824   /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1825   dm->buffer_flags_template =
1826     (VLIB_BUFFER_TOTAL_LENGTH_VALID
1827      | IP_BUFFER_L4_CHECKSUM_COMPUTED | IP_BUFFER_L4_CHECKSUM_CORRECT);
1828
1829   dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1830   dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1831
1832   /* init CLI */
1833   if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1834     return error;
1835
1836   return error;
1837 }
1838
1839 VLIB_INIT_FUNCTION (dpdk_init);
1840
1841
1842 /*
1843  * fd.io coding-style-patch-verification: ON
1844  *
1845  * Local Variables:
1846  * eval: (c-set-style "gnu")
1847  * End:
1848  */