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:
7 * http://www.apache.org/licenses/LICENSE-2.0
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.
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>
21 #include <vnet/ethernet/ethernet.h>
22 #include <dpdk/device/dpdk.h>
23 #include <vlib/unix/physmem.h>
24 #include <vlib/pci/pci.h>
30 #include <sys/mount.h>
34 #include <dpdk/device/dpdk_priv.h>
36 dpdk_main_t dpdk_main;
38 #define LINK_STATE_ELOGS 0
40 #define DEFAULT_HUGE_DIR (VPP_RUN_DIR "/hugepages")
42 /* Port configuration, mildly modified Intel app values */
44 static struct rte_eth_conf port_conf_template = {
47 .header_split = 0, /**< Header Split disabled */
48 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
49 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
50 .hw_strip_crc = 0, /**< CRC stripped by hardware */
53 .mq_mode = ETH_MQ_TX_NONE,
57 static dpdk_port_type_t
58 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
61 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
62 return VNET_DPDK_PORT_TYPE_ETH_100G;
63 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
64 return VNET_DPDK_PORT_TYPE_ETH_40G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
66 return VNET_DPDK_PORT_TYPE_ETH_25G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
68 return VNET_DPDK_PORT_TYPE_ETH_10G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
70 return VNET_DPDK_PORT_TYPE_ETH_1G;
72 return VNET_DPDK_PORT_TYPE_UNKNOWN;
77 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
79 dpdk_main_t *dm = &dpdk_main;
80 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
83 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
85 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
87 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
88 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
90 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
92 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
94 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
95 rte_eth_promiscuous_enable (xd->device_index);
97 rte_eth_promiscuous_disable (xd->device_index);
100 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
104 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
106 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
107 dpdk_device_stop (xd);
109 rv = rte_eth_dev_configure
110 (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
113 vlib_cli_output (vlib_get_main (),
114 "rte_eth_dev_configure[%d]: err %d",
115 xd->device_index, rv);
117 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
119 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
120 dpdk_device_start (xd);
127 dpdk_device_lock_init (dpdk_device_t * xd)
130 vec_validate (xd->lockp, xd->tx_q_used - 1);
131 for (q = 0; q < xd->tx_q_used; q++)
133 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
134 CLIB_CACHE_LINE_BYTES);
135 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
139 static clib_error_t *
140 dpdk_lib_init (dpdk_main_t * dm)
146 vlib_main_t *vm = vlib_get_main ();
147 vlib_thread_main_t *tm = vlib_get_thread_main ();
148 vnet_device_main_t *vdm = &vnet_device_main;
149 vnet_sw_interface_t *sw;
150 vnet_hw_interface_t *hi;
152 vlib_pci_addr_t last_pci_addr;
153 u32 last_pci_addr_port = 0;
154 vlib_thread_registration_t *tr_hqos;
157 u32 next_hqos_cpu = 0;
158 u8 af_packet_port_id = 0;
159 u8 bond_ether_port_id = 0;
160 last_pci_addr.as_u32 = ~0;
162 dm->hqos_cpu_first_index = 0;
163 dm->hqos_cpu_count = 0;
165 /* find out which cpus will be used for I/O TX */
166 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
167 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
169 if (tr_hqos && tr_hqos->count > 0)
171 dm->hqos_cpu_first_index = tr_hqos->first_index;
172 dm->hqos_cpu_count = tr_hqos->count;
175 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
176 CLIB_CACHE_LINE_BYTES);
178 nports = rte_eth_dev_count ();
181 clib_warning ("DPDK drivers found no ports...");
185 clib_warning ("DPDK drivers found %d ports...", nports);
188 * All buffers are all allocated from the same rte_mempool.
189 * Thus they all have the same number of data bytes.
191 dm->vlib_buffer_free_list_index =
192 vlib_buffer_get_or_create_free_list (vm,
193 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
196 if (dm->conf->enable_tcp_udp_checksum)
197 dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT
198 | IP_BUFFER_L4_CHECKSUM_COMPUTED);
200 /* vlib_buffer_t template */
201 vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1,
202 CLIB_CACHE_LINE_BYTES);
203 for (i = 0; i < tm->n_vlib_mains; i++)
205 vlib_buffer_free_list_t *fl;
206 vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i);
207 fl = vlib_buffer_get_free_list (vm,
208 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
209 vlib_buffer_init_for_free_list (bt, fl);
210 bt->flags = dm->buffer_flags_template;
211 bt->current_data = -RTE_PKTMBUF_HEADROOM;
212 vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
215 for (i = 0; i < nports; i++)
220 struct rte_eth_dev_info dev_info;
221 struct rte_eth_link l;
222 dpdk_device_config_t *devconf = 0;
223 vlib_pci_addr_t pci_addr;
226 rte_eth_dev_info_get (i, &dev_info);
227 if (dev_info.pci_dev) /* bonded interface has no pci info */
229 pci_addr.domain = dev_info.pci_dev->addr.domain;
230 pci_addr.bus = dev_info.pci_dev->addr.bus;
231 pci_addr.slot = dev_info.pci_dev->addr.devid;
232 pci_addr.function = dev_info.pci_dev->addr.function;
234 hash_get (dm->conf->device_config_index_by_pci_addr,
239 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
241 devconf = &dm->conf->default_devconf;
243 /* Create vnet interface */
244 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
245 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
246 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
247 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
249 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
250 if (dev_info.pci_dev)
252 struct rte_eth_dev_info di = { 0 };
253 rte_eth_dev_info_get (i + 1, &di);
254 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
255 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
256 sizeof (struct rte_pci_addr)) == 0)
258 xd->interface_name_suffix = format (0, "0");
259 last_pci_addr.as_u32 = pci_addr.as_u32;
260 last_pci_addr_port = i;
262 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
264 xd->interface_name_suffix =
265 format (0, "%u", i - last_pci_addr_port);
269 last_pci_addr.as_u32 = ~0;
273 last_pci_addr.as_u32 = ~0;
275 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
276 sizeof (struct rte_eth_txconf));
277 if (dm->conf->no_multi_seg)
279 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
280 port_conf_template.rxmode.jumbo_frame = 0;
281 port_conf_template.rxmode.enable_scatter = 0;
285 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
286 port_conf_template.rxmode.jumbo_frame = 1;
287 port_conf_template.rxmode.enable_scatter = 1;
288 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
291 clib_memcpy (&xd->port_conf, &port_conf_template,
292 sizeof (struct rte_eth_conf));
294 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
296 if (devconf->num_tx_queues > 0
297 && devconf->num_tx_queues < xd->tx_q_used)
298 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
300 if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
305 if (devconf->num_rx_queues > 1
306 && dev_info.max_rx_queues >= devconf->num_rx_queues)
308 xd->rx_q_used = devconf->num_rx_queues;
309 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
310 if (devconf->rss_fn == 0)
311 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
312 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
314 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
319 xd->flags |= DPDK_DEVICE_FLAG_PMD;
321 /* workaround for drivers not setting driver_name */
322 if ((!dev_info.driver_name) && (dev_info.pci_dev))
323 dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
325 ASSERT (dev_info.driver_name);
331 #define _(s,f) else if (dev_info.driver_name && \
332 !strcmp(dev_info.driver_name, s)) \
333 xd->pmd = VNET_DPDK_PMD_##f;
339 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
341 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
342 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
343 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
347 /* Drivers with valid speed_capa set */
348 case VNET_DPDK_PMD_E1000EM:
349 case VNET_DPDK_PMD_IGB:
350 case VNET_DPDK_PMD_IXGBE:
351 case VNET_DPDK_PMD_I40E:
352 case VNET_DPDK_PMD_CXGBE:
353 case VNET_DPDK_PMD_MLX4:
354 case VNET_DPDK_PMD_MLX5:
355 xd->port_type = port_type_from_speed_capa (&dev_info);
359 case VNET_DPDK_PMD_IGBVF:
360 case VNET_DPDK_PMD_IXGBEVF:
361 case VNET_DPDK_PMD_I40EVF:
362 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
363 xd->port_conf.rxmode.hw_strip_crc = 1;
366 case VNET_DPDK_PMD_THUNDERX:
367 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
370 case VNET_DPDK_PMD_DPAA2:
371 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
375 case VNET_DPDK_PMD_ENIC:
376 rte_eth_link_get_nowait (i, &l);
377 if (l.link_speed == 40000)
378 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
380 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
383 /* Intel Red Rock Canyon */
384 case VNET_DPDK_PMD_FM10K:
385 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
386 xd->port_conf.rxmode.hw_strip_crc = 1;
390 case VNET_DPDK_PMD_VIRTIO:
391 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
392 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
393 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
397 case VNET_DPDK_PMD_VMXNET3:
398 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
399 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
402 case VNET_DPDK_PMD_AF_PACKET:
403 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
404 xd->port_id = af_packet_port_id++;
407 case VNET_DPDK_PMD_BOND:
408 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
409 xd->port_id = bond_ether_port_id++;
412 case VNET_DPDK_PMD_VIRTIO_USER:
413 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
417 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
420 if (devconf->num_rx_desc)
421 xd->nb_rx_desc = devconf->num_rx_desc;
423 if (devconf->num_tx_desc)
424 xd->nb_tx_desc = devconf->num_tx_desc;
428 * Ensure default mtu is not > the mtu read from the hardware.
429 * Otherwise rte_eth_dev_configure() will fail and the port will
432 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
435 * This device does not support the platforms's max frame
436 * size. Use it's advertised mru instead.
438 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
442 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
445 * Some platforms do not account for Ethernet FCS (4 bytes) in
446 * MTU calculations. To interop with them increase mru but only
447 * if the device's settings can support it.
449 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
450 xd->port_conf.rxmode.hw_strip_crc)
453 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
454 * stripped by h/w and so will not consume any buffer memory.
456 xd->port_conf.rxmode.max_rx_pkt_len += 4;
460 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
462 f64 now = vlib_time_now (vm);
464 rnd = (u32) (now * 1e6);
465 rnd = random_u32 (&rnd);
466 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
471 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
473 if (xd->tx_q_used < tm->n_vlib_mains)
474 dpdk_device_lock_init (xd);
476 xd->device_index = xd - dm->devices;
477 ASSERT (i == xd->device_index);
478 xd->per_interface_next_index = ~0;
480 /* assign interface to input thread */
481 dpdk_device_and_queue_t *dq;
484 if (devconf->hqos_enabled)
486 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
488 if (devconf->hqos.hqos_thread_valid)
490 int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
492 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
493 return clib_error_return (0, "invalid HQoS thread index");
495 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
496 dq->device = xd->device_index;
501 int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
503 if (dm->hqos_cpu_count == 0)
504 return clib_error_return (0, "no HQoS threads available");
506 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
507 dq->device = xd->device_index;
511 if (next_hqos_cpu == dm->hqos_cpu_count)
514 devconf->hqos.hqos_thread_valid = 1;
515 devconf->hqos.hqos_thread = cpu;
519 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
520 CLIB_CACHE_LINE_BYTES);
521 for (j = 0; j < tm->n_vlib_mains; j++)
523 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
524 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
525 vec_reset_length (xd->tx_vectors[j]);
528 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
529 CLIB_CACHE_LINE_BYTES);
530 for (j = 0; j < xd->rx_q_used; j++)
532 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
533 CLIB_CACHE_LINE_BYTES);
534 vec_reset_length (xd->rx_vectors[j]);
537 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
538 CLIB_CACHE_LINE_BYTES);
541 /* count the number of descriptors used for this device */
542 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
544 error = ethernet_register_interface
545 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
546 /* ethernet address */ addr,
547 &xd->hw_if_index, dpdk_flag_change);
551 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
552 xd->vlib_sw_if_index = sw->sw_if_index;
553 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
554 dpdk_input_node.index);
556 if (devconf->workers)
561 clib_bitmap_foreach (i, devconf->workers, ({
562 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
563 vdm->first_worker_thread_index + i);
568 for (q = 0; q < xd->rx_q_used; q++)
570 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
574 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
576 dpdk_device_setup (xd);
578 if (vec_len (xd->errors))
579 clib_warning ("setup failed for device %U. Errors:\n %U",
580 format_dpdk_device_name, i,
581 format_dpdk_device_errors, xd);
583 if (devconf->hqos_enabled)
586 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
592 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
593 * specified otherwise in the startup config.
594 * For other NICs default to VLAN strip disabled, unless specified
595 * otherwis in the startup config.
597 if (xd->pmd == VNET_DPDK_PMD_ENIC)
599 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
600 vlan_strip = 1; /* remove vlan tag from VIC port by default */
602 clib_warning ("VLAN strip disabled for interface\n");
604 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
610 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
611 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
612 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
613 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
614 clib_warning ("VLAN strip enabled for interface\n");
616 clib_warning ("VLAN strip cannot be supported by interface\n");
619 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
620 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
622 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
625 if (nb_desc > dm->conf->num_mbufs)
626 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
627 dm->conf->num_mbufs, nb_desc);
633 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
635 vlib_pci_main_t *pm = &pci_main;
637 vlib_pci_device_t *d;
639 int num_whitelisted = vec_len (conf->dev_confs);
642 pool_foreach (d, pm->pci_devs, ({
643 dpdk_device_config_t * devconf = 0;
644 vec_reset_length (pci_addr);
645 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
647 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
652 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
657 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
661 if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
664 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
666 /* all Intel network devices */
667 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
669 /* all Intel QAT devices VFs */
670 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
671 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
674 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
677 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
681 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
682 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
687 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
693 pool_get (conf->dev_confs, devconf);
694 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
695 devconf - conf->dev_confs);
696 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
698 devconf->is_blacklisted = 1;
699 clib_error_report (error);
706 static clib_error_t *
707 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
708 unformat_input_t * input, u8 is_default)
710 clib_error_t *error = 0;
712 dpdk_device_config_t *devconf;
713 unformat_input_t sub_input;
717 devconf = &conf->default_devconf;
721 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
725 pool_get (conf->dev_confs, devconf);
726 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
727 devconf - conf->dev_confs);
730 return clib_error_return (0,
731 "duplicate configuration for PCI address %U",
732 format_vlib_pci_addr, &pci_addr);
735 devconf->pci_addr.as_u32 = pci_addr.as_u32;
736 devconf->hqos_enabled = 0;
737 dpdk_device_config_hqos_default (&devconf->hqos);
742 unformat_skip_white_space (input);
743 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
745 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
747 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
749 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
751 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
753 else if (unformat (input, "workers %U", unformat_bitmap_list,
758 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
760 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
764 else if (unformat (input, "vlan-strip-offload off"))
765 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
766 else if (unformat (input, "vlan-strip-offload on"))
767 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
770 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
772 devconf->hqos_enabled = 1;
773 error = unformat_hqos (&sub_input, &devconf->hqos);
777 else if (unformat (input, "hqos"))
779 devconf->hqos_enabled = 1;
783 error = clib_error_return (0, "unknown input `%U'",
784 format_unformat_error, input);
792 if (devconf->workers && devconf->num_rx_queues == 0)
793 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
794 else if (devconf->workers &&
795 clib_bitmap_count_set_bits (devconf->workers) !=
796 devconf->num_rx_queues)
798 clib_error_return (0,
799 "%U: number of worker threadds must be "
800 "equal to number of rx queues", format_vlib_pci_addr,
806 static clib_error_t *
807 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
809 clib_error_t *error = 0;
810 dpdk_main_t *dm = &dpdk_main;
811 dpdk_config_main_t *conf = &dpdk_config_main;
812 vlib_thread_main_t *tm = vlib_get_thread_main ();
813 dpdk_device_config_t *devconf;
814 vlib_pci_addr_t pci_addr;
815 unformat_input_t sub_input;
818 u8 *rte_cmd = 0, *ethname = 0;
821 int num_whitelisted = 0;
828 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
829 log_level = RTE_LOG_NOTICE;
831 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
834 if (unformat (input, "no-hugetlb"))
836 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
840 else if (unformat (input, "enable-tcp-udp-checksum"))
841 conf->enable_tcp_udp_checksum = 1;
843 else if (unformat (input, "decimal-interface-names"))
844 conf->interface_name_format_decimal = 1;
846 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
849 else if (unformat (input, "no-multi-seg"))
850 conf->no_multi_seg = 1;
852 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
856 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
864 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
865 unformat_vlib_cli_sub_input, &sub_input))
867 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
874 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
876 error = dpdk_device_config (conf, pci_addr, 0, 0);
883 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
885 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
887 else if (unformat (input, "socket-mem %s", &socket_mem))
889 else if (unformat (input, "no-pci"))
892 tmp = format (0, "--no-pci%c", 0);
893 vec_add1 (conf->eal_init_args, tmp);
895 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
899 else if (unformat(input, #a)) \
901 tmp = format (0, "--%s%c", #a, 0); \
902 vec_add1 (conf->eal_init_args, tmp); \
904 foreach_eal_double_hyphen_predicate_arg
907 else if (unformat(input, #a " %s", &s)) \
909 if (!strncmp(#a, "huge-dir", 8)) \
911 else if (!strncmp(#a, "file-prefix", 11)) \
913 tmp = format (0, "--%s%c", #a, 0); \
914 vec_add1 (conf->eal_init_args, tmp); \
916 if (!strncmp(#a, "vdev", 4)) \
917 if (strstr((char*)s, "af_packet")) \
918 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
919 vec_add1 (conf->eal_init_args, s); \
921 foreach_eal_double_hyphen_arg
924 else if (unformat(input, #a " %s", &s)) \
926 tmp = format (0, "-%s%c", #b, 0); \
927 vec_add1 (conf->eal_init_args, tmp); \
929 vec_add1 (conf->eal_init_args, s); \
931 foreach_eal_single_hyphen_arg
934 else if (unformat(input, #a " %s", &s)) \
936 tmp = format (0, "-%s%c", #b, 0); \
937 vec_add1 (conf->eal_init_args, tmp); \
939 vec_add1 (conf->eal_init_args, s); \
940 conf->a##_set_manually = 1; \
942 foreach_eal_single_hyphen_mandatory_arg
944 else if (unformat (input, "default"))
947 else if (unformat_skip_white_space (input))
951 error = clib_error_return (0, "unknown input `%U'",
952 format_unformat_error, input);
957 if (!conf->uio_driver_name)
958 conf->uio_driver_name = format (0, "uio_pci_generic%c", 0);
961 * Use 1G huge pages if available.
963 if (!no_huge && !huge_dir)
965 u32 x, *mem_by_socket = 0;
972 umount (DEFAULT_HUGE_DIR);
974 /* Process "socket-mem" parameter value */
975 if (vec_len (socket_mem))
978 unformat_init_vector (&in, socket_mem);
979 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
981 if (unformat (&in, "%u,", &x))
983 else if (unformat (&in, "%u", &x))
985 else if (unformat (&in, ","))
990 vec_add1 (mem_by_socket, x);
995 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1002 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1004 vec_validate(mem_by_socket, c);
1005 mem_by_socket[c] = 256; /* default per-socket mem */
1011 /* check if available enough 1GB pages for each socket */
1013 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1015 int pages_avail, page_size, mem;
1017 vec_validate(mem_by_socket, c);
1018 mem = mem_by_socket[c];
1021 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1023 if (pages_avail < 0 || page_size * pages_avail < mem)
1027 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1029 if (pages_avail < 0 || page_size * pages_avail < mem)
1034 if (mem_by_socket == 0)
1036 error = clib_error_return (0, "mem_by_socket NULL");
1039 _vec_len (mem_by_socket) = c + 1;
1041 /* regenerate socket_mem string */
1042 vec_foreach_index (x, mem_by_socket)
1043 socket_mem = format (socket_mem, "%s%u",
1044 socket_mem ? "," : "", mem_by_socket[x]);
1045 socket_mem = format (socket_mem, "%c", 0);
1047 vec_free (mem_by_socket);
1049 /* Make sure VPP_RUN_DIR exists */
1050 error = unix_make_vpp_run_dir ();
1054 rv = mkdir (DEFAULT_HUGE_DIR, 0755);
1055 if (rv && errno != EEXIST)
1057 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1058 DEFAULT_HUGE_DIR, errno);
1062 if (use_1g && !(less_than_1g && use_2m))
1065 mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1069 rv = mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1073 return clib_error_return (0, "not enough free huge pages");
1078 error = clib_error_return (0, "mount failed %d", errno);
1082 tmp = format (0, "--huge-dir%c", 0);
1083 vec_add1 (conf->eal_init_args, tmp);
1084 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1085 vec_add1 (conf->eal_init_args, tmp);
1088 tmp = format (0, "--file-prefix%c", 0);
1089 vec_add1 (conf->eal_init_args, tmp);
1090 tmp = format (0, "vpp%c", 0);
1091 vec_add1 (conf->eal_init_args, tmp);
1101 /* I'll bet that -c and -n must be the first and second args... */
1102 if (!conf->coremask_set_manually)
1104 vlib_thread_registration_t *tr;
1105 uword *coremask = 0;
1108 /* main thread core */
1109 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1111 for (i = 0; i < vec_len (tm->registrations); i++)
1113 tr = tm->registrations[i];
1114 coremask = clib_bitmap_or (coremask, tr->coremask);
1117 vec_insert (conf->eal_init_args, 2, 1);
1118 conf->eal_init_args[1] = (u8 *) "-c";
1119 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1120 conf->eal_init_args[2] = tmp;
1121 clib_bitmap_free (coremask);
1124 if (!conf->nchannels_set_manually)
1126 vec_insert (conf->eal_init_args, 2, 3);
1127 conf->eal_init_args[3] = (u8 *) "-n";
1128 tmp = format (0, "%d", conf->nchannels);
1129 conf->eal_init_args[4] = tmp;
1132 if (no_pci == 0 && geteuid () == 0)
1133 dpdk_bind_devices_to_uio (conf);
1136 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1137 devconf->x = conf->default_devconf.x ;
1140 pool_foreach (devconf, conf->dev_confs, ({
1142 /* default per-device config items */
1143 foreach_dpdk_device_config_item
1145 /* add DPDK EAL whitelist/blacklist entry */
1146 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1148 tmp = format (0, "-w%c", 0);
1149 vec_add1 (conf->eal_init_args, tmp);
1150 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1151 vec_add1 (conf->eal_init_args, tmp);
1153 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1155 tmp = format (0, "-b%c", 0);
1156 vec_add1 (conf->eal_init_args, tmp);
1157 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1158 vec_add1 (conf->eal_init_args, tmp);
1165 /* set master-lcore */
1166 tmp = format (0, "--master-lcore%c", 0);
1167 vec_add1 (conf->eal_init_args, tmp);
1168 tmp = format (0, "%u%c", tm->main_lcore, 0);
1169 vec_add1 (conf->eal_init_args, tmp);
1171 /* set socket-mem */
1172 tmp = format (0, "--socket-mem%c", 0);
1173 vec_add1 (conf->eal_init_args, tmp);
1174 tmp = format (0, "%s%c", socket_mem, 0);
1175 vec_add1 (conf->eal_init_args, tmp);
1177 /* NULL terminate the "argv" vector, in case of stupidity */
1178 vec_add1 (conf->eal_init_args, 0);
1179 _vec_len (conf->eal_init_args) -= 1;
1181 /* Set up DPDK eal and packet mbuf pool early. */
1183 #if RTE_VERSION >= RTE_VERSION_NUM(17, 5, 0, 0)
1184 rte_log_set_global_level (log_level);
1186 rte_set_log_level (log_level);
1189 vm = vlib_get_main ();
1191 /* make copy of args as rte_eal_init tends to mess up with arg array */
1192 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1193 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1194 conf->eal_init_args[i]);
1197 rte_eal_init (vec_len (conf->eal_init_args),
1198 (char **) conf->eal_init_args);
1200 /* lazy umount hugepages */
1201 umount2 (DEFAULT_HUGE_DIR, MNT_DETACH);
1204 return clib_error_return (0, "rte_eal_init returned %d", ret);
1206 /* Dump the physical memory layout prior to creating the mbuf_pool */
1207 fprintf (stdout, "DPDK physical memory layout:\n");
1208 rte_dump_physmem_layout (stdout);
1210 /* main thread 1st */
1211 error = vlib_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1215 for (i = 0; i < RTE_MAX_LCORE; i++)
1217 error = vlib_buffer_pool_create (vm, conf->num_mbufs,
1218 rte_lcore_to_socket_id (i));
1227 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1230 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1232 vnet_main_t *vnm = vnet_get_main ();
1233 struct rte_eth_link prev_link = xd->link;
1235 u8 hw_flags_chg = 0;
1237 /* only update link state for PMD interfaces */
1238 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1241 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1242 memset (&xd->link, 0, sizeof (xd->link));
1243 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1245 if (LINK_STATE_ELOGS)
1247 vlib_main_t *vm = vlib_get_main ();
1248 ELOG_TYPE_DECLARE (e) =
1251 "update-link-state: sw_if_index %d, admin_up %d,"
1252 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1261 ed = ELOG_DATA (&vm->elog_main, e);
1262 ed->sw_if_index = xd->vlib_sw_if_index;
1263 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1264 ed->old_link_state = (u8)
1265 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1266 ed->new_link_state = (u8) xd->link.link_status;
1269 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) &&
1270 ((xd->link.link_status != 0) ^
1271 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1274 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1277 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1280 switch (xd->link.link_duplex)
1282 case ETH_LINK_HALF_DUPLEX:
1283 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1285 case ETH_LINK_FULL_DUPLEX:
1286 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1292 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1295 switch (xd->link.link_speed)
1297 case ETH_SPEED_NUM_10M:
1298 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1300 case ETH_SPEED_NUM_100M:
1301 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1303 case ETH_SPEED_NUM_1G:
1304 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1306 case ETH_SPEED_NUM_10G:
1307 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1309 case ETH_SPEED_NUM_40G:
1310 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1315 clib_warning ("unknown link speed %d", xd->link.link_speed);
1321 if (LINK_STATE_ELOGS)
1323 vlib_main_t *vm = vlib_get_main ();
1325 ELOG_TYPE_DECLARE (e) =
1328 "update-link-state: sw_if_index %d, new flags %d",.format_args
1336 ed = ELOG_DATA (&vm->elog_main, e);
1337 ed->sw_if_index = xd->vlib_sw_if_index;
1338 ed->flags = hw_flags;
1340 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1345 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1347 clib_error_t *error;
1348 vnet_main_t *vnm = vnet_get_main ();
1349 dpdk_main_t *dm = &dpdk_main;
1350 ethernet_main_t *em = ðernet_main;
1352 vlib_thread_main_t *tm = vlib_get_thread_main ();
1355 error = dpdk_lib_init (dm);
1358 clib_error_report (error);
1360 tm->worker_thread_release = 1;
1362 f64 now = vlib_time_now (vm);
1363 vec_foreach (xd, dm->devices)
1365 dpdk_update_link_state (xd, now);
1370 * Extra set up for bond interfaces:
1371 * 1. Setup MACs for bond interfaces and their slave links which was set
1372 * in dpdk_device_setup() but needs to be done again here to take
1374 * 2. Set up info and register slave link state change callback handling.
1375 * 3. Set up info for bond interface related CLI support.
1377 int nports = rte_eth_dev_count ();
1380 for (i = 0; i < nports; i++)
1382 xd = &dm->devices[i];
1383 ASSERT (i == xd->device_index);
1384 if (xd->pmd == VNET_DPDK_PMD_BOND)
1388 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1391 vnet_hw_interface_t *bhi;
1392 ethernet_interface_t *bei;
1395 /* Get MAC of 1st slave link */
1397 (slink[0], (struct ether_addr *) addr);
1399 /* Set MAC of bounded interface to that of 1st slave link */
1400 clib_warning ("Set MAC for bond port %d BondEthernet%d",
1402 rv = rte_eth_bond_mac_address_set
1403 (i, (struct ether_addr *) addr);
1405 clib_warning ("Set MAC addr failure rv=%d", rv);
1407 /* Populate MAC of bonded interface in VPP hw tables */
1408 bhi = vnet_get_hw_interface
1409 (vnm, dm->devices[i].hw_if_index);
1410 bei = pool_elt_at_index
1411 (em->interfaces, bhi->hw_instance);
1412 clib_memcpy (bhi->hw_address, addr, 6);
1413 clib_memcpy (bei->address, addr, 6);
1415 /* Init l3 packet size allowed on bonded interface */
1416 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1417 bhi->max_l3_packet_bytes[VLIB_RX] =
1418 bhi->max_l3_packet_bytes[VLIB_TX] =
1419 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1421 { /* for all slave links */
1422 int slave = slink[--nlink];
1423 dpdk_device_t *sdev = &dm->devices[slave];
1424 vnet_hw_interface_t *shi;
1425 vnet_sw_interface_t *ssi;
1426 ethernet_interface_t *sei;
1427 /* Add MAC to all slave links except the first one */
1430 clib_warning ("Add MAC for slave port %d", slave);
1431 rv = rte_eth_dev_mac_addr_add
1432 (slave, (struct ether_addr *) addr, 0);
1434 clib_warning ("Add MAC addr failure rv=%d", rv);
1436 /* Setup slave link state change callback handling */
1437 rte_eth_dev_callback_register
1438 (slave, RTE_ETH_EVENT_INTR_LSC,
1439 dpdk_port_state_callback, NULL);
1440 dpdk_device_t *sxd = &dm->devices[slave];
1441 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1443 /* Set slaves bitmap for bonded interface */
1444 bhi->bond_info = clib_bitmap_set
1445 (bhi->bond_info, sdev->hw_if_index, 1);
1446 /* Set MACs and slave link flags on slave interface */
1447 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1448 ssi = vnet_get_sw_interface
1449 (vnm, sdev->vlib_sw_if_index);
1450 sei = pool_elt_at_index
1451 (em->interfaces, shi->hw_instance);
1452 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1453 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1454 clib_memcpy (shi->hw_address, addr, 6);
1455 clib_memcpy (sei->address, addr, 6);
1456 /* Set l3 packet size allowed as the lowest of slave */
1457 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1458 shi->max_l3_packet_bytes[VLIB_RX])
1459 bhi->max_l3_packet_bytes[VLIB_RX] =
1460 bhi->max_l3_packet_bytes[VLIB_TX] =
1461 shi->max_l3_packet_bytes[VLIB_RX];
1462 /* Set max packet size allowed as the lowest of slave */
1463 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1464 bhi->max_packet_bytes = shi->max_packet_bytes;
1475 * check each time through the loop in case intervals are changed
1477 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1478 dm->link_state_poll_interval : dm->stat_poll_interval;
1480 vlib_process_wait_for_event_or_clock (vm, min_wait);
1482 if (dm->admin_up_down_in_progress)
1483 /* skip the poll if an admin up down is in progress (on any interface) */
1486 vec_foreach (xd, dm->devices)
1488 f64 now = vlib_time_now (vm);
1489 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1490 dpdk_update_counters (xd, now);
1491 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1492 dpdk_update_link_state (xd, now);
1501 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1502 .function = dpdk_process,
1503 .type = VLIB_NODE_TYPE_PROCESS,
1504 .name = "dpdk-process",
1505 .process_log2_n_stack_bytes = 17,
1509 static clib_error_t *
1510 dpdk_init (vlib_main_t * vm)
1512 dpdk_main_t *dm = &dpdk_main;
1514 clib_error_t *error = 0;
1515 vlib_thread_main_t *tm = vlib_get_thread_main ();
1517 /* verify that structs are cacheline aligned */
1518 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1519 "Cache line marker must be 1st element in dpdk_device_t");
1520 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1521 CLIB_CACHE_LINE_BYTES,
1522 "Data in cache line 0 is bigger than cache line size");
1523 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1524 "Cache line marker must be 1st element in frame_queue_trace_t");
1527 dm->vnet_main = vnet_get_main ();
1528 dm->conf = &dpdk_config_main;
1530 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1532 return clib_error_return (0, "ethernet-input node AWOL");
1534 dm->ethernet_input_node_index = ei->index;
1536 dm->conf->nchannels = 4;
1537 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1538 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1540 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1542 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1543 dm->buffer_flags_template =
1544 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1545 | IP_BUFFER_L4_CHECKSUM_COMPUTED | IP_BUFFER_L4_CHECKSUM_CORRECT);
1547 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1548 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1551 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1557 VLIB_INIT_FUNCTION (dpdk_init);
1561 * fd.io coding-style-patch-verification: ON
1564 * eval: (c-set-style "gnu")