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 "/run/vpp/hugepages"
41 #define VPP_RUN_DIR "/run/vpp"
43 /* Port configuration, mildly modified Intel app values */
45 static struct rte_eth_conf port_conf_template = {
48 .header_split = 0, /**< Header Split disabled */
49 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
50 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
51 .hw_strip_crc = 0, /**< CRC stripped by hardware */
54 .mq_mode = ETH_MQ_TX_NONE,
58 static dpdk_port_type_t
59 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
62 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
63 return VNET_DPDK_PORT_TYPE_ETH_100G;
64 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
65 return VNET_DPDK_PORT_TYPE_ETH_40G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
67 return VNET_DPDK_PORT_TYPE_ETH_25G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
69 return VNET_DPDK_PORT_TYPE_ETH_10G;
70 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
71 return VNET_DPDK_PORT_TYPE_ETH_1G;
73 return VNET_DPDK_PORT_TYPE_UNKNOWN;
78 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
80 dpdk_main_t *dm = &dpdk_main;
81 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
84 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
86 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
88 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
89 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
91 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
93 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
95 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
96 rte_eth_promiscuous_enable (xd->device_index);
98 rte_eth_promiscuous_disable (xd->device_index);
101 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
105 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
107 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
108 dpdk_device_stop (xd);
110 rv = rte_eth_dev_configure
111 (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
114 vlib_cli_output (vlib_get_main (),
115 "rte_eth_dev_configure[%d]: err %d",
116 xd->device_index, rv);
118 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
120 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
121 dpdk_device_start (xd);
128 dpdk_device_lock_init (dpdk_device_t * xd)
131 vec_validate (xd->lockp, xd->tx_q_used - 1);
132 for (q = 0; q < xd->tx_q_used; q++)
134 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
135 CLIB_CACHE_LINE_BYTES);
136 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
140 static clib_error_t *
141 dpdk_lib_init (dpdk_main_t * dm)
147 vlib_main_t *vm = vlib_get_main ();
148 vlib_thread_main_t *tm = vlib_get_thread_main ();
149 vnet_device_main_t *vdm = &vnet_device_main;
150 vnet_sw_interface_t *sw;
151 vnet_hw_interface_t *hi;
153 vlib_pci_addr_t last_pci_addr;
154 u32 last_pci_addr_port = 0;
155 vlib_thread_registration_t *tr_hqos;
158 u32 next_hqos_cpu = 0;
159 u8 af_packet_port_id = 0;
160 u8 bond_ether_port_id = 0;
161 last_pci_addr.as_u32 = ~0;
163 dm->hqos_cpu_first_index = 0;
164 dm->hqos_cpu_count = 0;
166 /* find out which cpus will be used for I/O TX */
167 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
168 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
170 if (tr_hqos && tr_hqos->count > 0)
172 dm->hqos_cpu_first_index = tr_hqos->first_index;
173 dm->hqos_cpu_count = tr_hqos->count;
176 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
177 CLIB_CACHE_LINE_BYTES);
179 nports = rte_eth_dev_count ();
182 clib_warning ("DPDK drivers found no ports...");
186 clib_warning ("DPDK drivers found %d ports...", nports);
189 * All buffers are all allocated from the same rte_mempool.
190 * Thus they all have the same number of data bytes.
192 dm->vlib_buffer_free_list_index =
193 vlib_buffer_get_or_create_free_list (vm,
194 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
197 if (dm->conf->enable_tcp_udp_checksum)
198 dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT
199 | IP_BUFFER_L4_CHECKSUM_COMPUTED);
201 /* vlib_buffer_t template */
202 vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1,
203 CLIB_CACHE_LINE_BYTES);
204 for (i = 0; i < tm->n_vlib_mains; i++)
206 vlib_buffer_free_list_t *fl;
207 vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i);
208 fl = vlib_buffer_get_free_list (vm,
209 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
210 vlib_buffer_init_for_free_list (bt, fl);
211 bt->flags = dm->buffer_flags_template;
212 bt->current_data = -RTE_PKTMBUF_HEADROOM;
213 vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
216 for (i = 0; i < nports; i++)
221 struct rte_eth_dev_info dev_info;
222 struct rte_eth_link l;
223 dpdk_device_config_t *devconf = 0;
224 vlib_pci_addr_t pci_addr;
227 rte_eth_dev_info_get (i, &dev_info);
228 if (dev_info.pci_dev) /* bonded interface has no pci info */
230 pci_addr.domain = dev_info.pci_dev->addr.domain;
231 pci_addr.bus = dev_info.pci_dev->addr.bus;
232 pci_addr.slot = dev_info.pci_dev->addr.devid;
233 pci_addr.function = dev_info.pci_dev->addr.function;
235 hash_get (dm->conf->device_config_index_by_pci_addr,
240 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
242 devconf = &dm->conf->default_devconf;
244 /* Create vnet interface */
245 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
246 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
247 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
248 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
250 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
251 if (dev_info.pci_dev)
253 struct rte_eth_dev_info di = { 0 };
254 rte_eth_dev_info_get (i + 1, &di);
255 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
256 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
257 sizeof (struct rte_pci_addr)) == 0)
259 xd->interface_name_suffix = format (0, "0");
260 last_pci_addr.as_u32 = pci_addr.as_u32;
261 last_pci_addr_port = i;
263 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
265 xd->interface_name_suffix =
266 format (0, "%u", i - last_pci_addr_port);
270 last_pci_addr.as_u32 = ~0;
274 last_pci_addr.as_u32 = ~0;
276 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
277 sizeof (struct rte_eth_txconf));
278 if (dm->conf->no_multi_seg)
280 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
281 port_conf_template.rxmode.jumbo_frame = 0;
282 port_conf_template.rxmode.enable_scatter = 0;
286 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
287 port_conf_template.rxmode.jumbo_frame = 1;
288 port_conf_template.rxmode.enable_scatter = 1;
289 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
292 clib_memcpy (&xd->port_conf, &port_conf_template,
293 sizeof (struct rte_eth_conf));
295 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
297 if (devconf->num_tx_queues > 0
298 && devconf->num_tx_queues < xd->tx_q_used)
299 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
301 if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
306 if (devconf->num_rx_queues > 1
307 && dev_info.max_rx_queues >= devconf->num_rx_queues)
309 xd->rx_q_used = devconf->num_rx_queues;
310 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
311 if (devconf->rss_fn == 0)
312 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
313 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
315 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
320 xd->flags |= DPDK_DEVICE_FLAG_PMD;
322 /* workaround for drivers not setting driver_name */
323 if ((!dev_info.driver_name) && (dev_info.pci_dev))
324 dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
326 ASSERT (dev_info.driver_name);
332 #define _(s,f) else if (dev_info.driver_name && \
333 !strcmp(dev_info.driver_name, s)) \
334 xd->pmd = VNET_DPDK_PMD_##f;
340 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
342 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
343 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
344 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
348 /* Drivers with valid speed_capa set */
349 case VNET_DPDK_PMD_E1000EM:
350 case VNET_DPDK_PMD_IGB:
351 case VNET_DPDK_PMD_IXGBE:
352 case VNET_DPDK_PMD_I40E:
353 case VNET_DPDK_PMD_CXGBE:
354 case VNET_DPDK_PMD_MLX4:
355 case VNET_DPDK_PMD_MLX5:
356 xd->port_type = port_type_from_speed_capa (&dev_info);
360 case VNET_DPDK_PMD_IGBVF:
361 case VNET_DPDK_PMD_IXGBEVF:
362 case VNET_DPDK_PMD_I40EVF:
363 case VNET_DPDK_PMD_THUNDERX:
364 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
367 case VNET_DPDK_PMD_DPAA2:
368 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
372 case VNET_DPDK_PMD_ENIC:
373 rte_eth_link_get_nowait (i, &l);
374 if (l.link_speed == 40000)
375 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
377 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
380 /* Intel Red Rock Canyon */
381 case VNET_DPDK_PMD_FM10K:
382 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
386 case VNET_DPDK_PMD_VIRTIO:
387 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
388 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
389 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
393 case VNET_DPDK_PMD_VMXNET3:
394 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
395 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
398 case VNET_DPDK_PMD_AF_PACKET:
399 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
400 xd->port_id = af_packet_port_id++;
403 case VNET_DPDK_PMD_BOND:
404 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
405 xd->port_id = bond_ether_port_id++;
409 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
412 if (devconf->num_rx_desc)
413 xd->nb_rx_desc = devconf->num_rx_desc;
415 if (devconf->num_tx_desc)
416 xd->nb_tx_desc = devconf->num_tx_desc;
420 * Ensure default mtu is not > the mtu read from the hardware.
421 * Otherwise rte_eth_dev_configure() will fail and the port will
424 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
427 * This device does not support the platforms's max frame
428 * size. Use it's advertised mru instead.
430 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
434 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
437 * Some platforms do not account for Ethernet FCS (4 bytes) in
438 * MTU calculations. To interop with them increase mru but only
439 * if the device's settings can support it.
441 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
442 xd->port_conf.rxmode.hw_strip_crc)
445 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
446 * stripped by h/w and so will not consume any buffer memory.
448 xd->port_conf.rxmode.max_rx_pkt_len += 4;
452 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
454 f64 now = vlib_time_now (vm);
456 rnd = (u32) (now * 1e6);
457 rnd = random_u32 (&rnd);
458 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
463 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
465 if (xd->tx_q_used < tm->n_vlib_mains)
466 dpdk_device_lock_init (xd);
468 xd->device_index = xd - dm->devices;
469 ASSERT (i == xd->device_index);
470 xd->per_interface_next_index = ~0;
472 /* assign interface to input thread */
473 dpdk_device_and_queue_t *dq;
476 if (devconf->hqos_enabled)
478 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
480 if (devconf->hqos.hqos_thread_valid)
482 int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
484 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
485 return clib_error_return (0, "invalid HQoS thread index");
487 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
488 dq->device = xd->device_index;
493 int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
495 if (dm->hqos_cpu_count == 0)
496 return clib_error_return (0, "no HQoS threads available");
498 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
499 dq->device = xd->device_index;
503 if (next_hqos_cpu == dm->hqos_cpu_count)
506 devconf->hqos.hqos_thread_valid = 1;
507 devconf->hqos.hqos_thread = cpu;
511 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
512 CLIB_CACHE_LINE_BYTES);
513 for (j = 0; j < tm->n_vlib_mains; j++)
515 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
516 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
517 vec_reset_length (xd->tx_vectors[j]);
520 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
521 CLIB_CACHE_LINE_BYTES);
522 for (j = 0; j < xd->rx_q_used; j++)
524 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
525 CLIB_CACHE_LINE_BYTES);
526 vec_reset_length (xd->rx_vectors[j]);
529 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
530 CLIB_CACHE_LINE_BYTES);
533 /* count the number of descriptors used for this device */
534 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
536 error = ethernet_register_interface
537 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
538 /* ethernet address */ addr,
539 &xd->hw_if_index, dpdk_flag_change);
543 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
544 xd->vlib_sw_if_index = sw->sw_if_index;
545 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
546 dpdk_input_node.index);
548 if (devconf->workers)
553 clib_bitmap_foreach (i, devconf->workers, ({
554 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
555 vdm->first_worker_thread_index + i);
560 for (q = 0; q < xd->rx_q_used; q++)
562 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
566 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
568 dpdk_device_setup (xd);
570 if (vec_len (xd->errors))
571 clib_warning ("setup failed for device %U. Errors:\n %U",
572 format_dpdk_device_name, i,
573 format_dpdk_device_errors, xd);
575 if (devconf->hqos_enabled)
578 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
584 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
585 * specified otherwise in the startup config.
586 * For other NICs default to VLAN strip disabled, unless specified
587 * otherwis in the startup config.
589 if (xd->pmd == VNET_DPDK_PMD_ENIC)
591 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
592 vlan_strip = 1; /* remove vlan tag from VIC port by default */
594 clib_warning ("VLAN strip disabled for interface\n");
596 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
602 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
603 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
604 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
605 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
606 clib_warning ("VLAN strip enabled for interface\n");
608 clib_warning ("VLAN strip cannot be supported by interface\n");
611 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
612 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
614 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
617 if (nb_desc > dm->conf->num_mbufs)
618 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
619 dm->conf->num_mbufs, nb_desc);
625 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
627 vlib_pci_main_t *pm = &pci_main;
629 vlib_pci_device_t *d;
631 int num_whitelisted = vec_len (conf->dev_confs);
634 pool_foreach (d, pm->pci_devs, ({
635 dpdk_device_config_t * devconf = 0;
636 vec_reset_length (pci_addr);
637 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
639 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
644 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
649 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
653 if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
656 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
658 /* all Intel network devices */
659 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
661 /* all Intel QAT devices VFs */
662 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
663 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
666 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
669 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
673 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
674 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
679 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
685 pool_get (conf->dev_confs, devconf);
686 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
687 devconf - conf->dev_confs);
688 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
690 devconf->is_blacklisted = 1;
691 clib_error_report (error);
698 static clib_error_t *
699 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
700 unformat_input_t * input, u8 is_default)
702 clib_error_t *error = 0;
704 dpdk_device_config_t *devconf;
705 unformat_input_t sub_input;
709 devconf = &conf->default_devconf;
713 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
717 pool_get (conf->dev_confs, devconf);
718 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
719 devconf - conf->dev_confs);
722 return clib_error_return (0,
723 "duplicate configuration for PCI address %U",
724 format_vlib_pci_addr, &pci_addr);
727 devconf->pci_addr.as_u32 = pci_addr.as_u32;
728 devconf->hqos_enabled = 0;
729 dpdk_device_config_hqos_default (&devconf->hqos);
734 unformat_skip_white_space (input);
735 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
737 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
739 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
741 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
743 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
745 else if (unformat (input, "workers %U", unformat_bitmap_list,
750 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
752 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
756 else if (unformat (input, "vlan-strip-offload off"))
757 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
758 else if (unformat (input, "vlan-strip-offload on"))
759 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
762 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
764 devconf->hqos_enabled = 1;
765 error = unformat_hqos (&sub_input, &devconf->hqos);
769 else if (unformat (input, "hqos"))
771 devconf->hqos_enabled = 1;
775 error = clib_error_return (0, "unknown input `%U'",
776 format_unformat_error, input);
784 if (devconf->workers && devconf->num_rx_queues == 0)
785 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
786 else if (devconf->workers &&
787 clib_bitmap_count_set_bits (devconf->workers) !=
788 devconf->num_rx_queues)
790 clib_error_return (0,
791 "%U: number of worker threadds must be "
792 "equal to number of rx queues", format_vlib_pci_addr,
798 static clib_error_t *
799 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
801 clib_error_t *error = 0;
802 dpdk_main_t *dm = &dpdk_main;
803 dpdk_config_main_t *conf = &dpdk_config_main;
804 vlib_thread_main_t *tm = vlib_get_thread_main ();
805 dpdk_device_config_t *devconf;
806 vlib_pci_addr_t pci_addr;
807 unformat_input_t sub_input;
809 u8 *rte_cmd = 0, *ethname = 0;
812 int num_whitelisted = 0;
819 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
821 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
824 if (unformat (input, "no-hugetlb"))
826 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
830 else if (unformat (input, "enable-tcp-udp-checksum"))
831 conf->enable_tcp_udp_checksum = 1;
833 else if (unformat (input, "decimal-interface-names"))
834 conf->interface_name_format_decimal = 1;
836 else if (unformat (input, "no-multi-seg"))
837 conf->no_multi_seg = 1;
839 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
843 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
851 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
852 unformat_vlib_cli_sub_input, &sub_input))
854 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
861 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
863 error = dpdk_device_config (conf, pci_addr, 0, 0);
870 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
872 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
874 else if (unformat (input, "socket-mem %s", &socket_mem))
876 else if (unformat (input, "no-pci"))
879 tmp = format (0, "--no-pci%c", 0);
880 vec_add1 (conf->eal_init_args, tmp);
882 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
886 else if (unformat(input, #a)) \
888 tmp = format (0, "--%s%c", #a, 0); \
889 vec_add1 (conf->eal_init_args, tmp); \
891 foreach_eal_double_hyphen_predicate_arg
894 else if (unformat(input, #a " %s", &s)) \
896 if (!strncmp(#a, "huge-dir", 8)) \
898 else if (!strncmp(#a, "file-prefix", 11)) \
900 tmp = format (0, "--%s%c", #a, 0); \
901 vec_add1 (conf->eal_init_args, tmp); \
903 if (!strncmp(#a, "vdev", 4)) \
904 if (strstr((char*)s, "af_packet")) \
905 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
906 vec_add1 (conf->eal_init_args, s); \
908 foreach_eal_double_hyphen_arg
911 else if (unformat(input, #a " %s", &s)) \
913 tmp = format (0, "-%s%c", #b, 0); \
914 vec_add1 (conf->eal_init_args, tmp); \
916 vec_add1 (conf->eal_init_args, s); \
918 foreach_eal_single_hyphen_arg
921 else if (unformat(input, #a " %s", &s)) \
923 tmp = format (0, "-%s%c", #b, 0); \
924 vec_add1 (conf->eal_init_args, tmp); \
926 vec_add1 (conf->eal_init_args, s); \
927 conf->a##_set_manually = 1; \
929 foreach_eal_single_hyphen_mandatory_arg
931 else if (unformat (input, "default"))
934 else if (unformat_skip_white_space (input))
938 error = clib_error_return (0, "unknown input `%U'",
939 format_unformat_error, input);
944 if (!conf->uio_driver_name)
945 conf->uio_driver_name = format (0, "uio_pci_generic%c", 0);
948 * Use 1G huge pages if available.
950 if (!no_huge && !huge_dir)
952 u32 x, *mem_by_socket = 0;
959 umount (DEFAULT_HUGE_DIR);
961 /* Process "socket-mem" parameter value */
962 if (vec_len (socket_mem))
965 unformat_init_vector (&in, socket_mem);
966 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
968 if (unformat (&in, "%u,", &x))
970 else if (unformat (&in, "%u", &x))
972 else if (unformat (&in, ","))
977 vec_add1 (mem_by_socket, x);
982 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
989 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
991 vec_validate(mem_by_socket, c);
992 mem_by_socket[c] = 256; /* default per-socket mem */
998 /* check if available enough 1GB pages for each socket */
1000 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1002 int pages_avail, page_size, mem;
1004 vec_validate(mem_by_socket, c);
1005 mem = mem_by_socket[c];
1008 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1010 if (pages_avail < 0 || page_size * pages_avail < mem)
1014 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1016 if (pages_avail < 0 || page_size * pages_avail < mem)
1021 if (mem_by_socket == 0)
1023 error = clib_error_return (0, "mem_by_socket NULL");
1026 _vec_len (mem_by_socket) = c + 1;
1028 /* regenerate socket_mem string */
1029 vec_foreach_index (x, mem_by_socket)
1030 socket_mem = format (socket_mem, "%s%u",
1031 socket_mem ? "," : "", mem_by_socket[x]);
1032 socket_mem = format (socket_mem, "%c", 0);
1034 vec_free (mem_by_socket);
1036 rv = mkdir (VPP_RUN_DIR, 0755);
1037 if (rv && errno != EEXIST)
1039 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1040 VPP_RUN_DIR, errno);
1044 rv = mkdir (DEFAULT_HUGE_DIR, 0755);
1045 if (rv && errno != EEXIST)
1047 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1048 DEFAULT_HUGE_DIR, errno);
1052 if (use_1g && !(less_than_1g && use_2m))
1055 mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1059 rv = mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1063 return clib_error_return (0, "not enough free huge pages");
1068 error = clib_error_return (0, "mount failed %d", errno);
1072 tmp = format (0, "--huge-dir%c", 0);
1073 vec_add1 (conf->eal_init_args, tmp);
1074 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1075 vec_add1 (conf->eal_init_args, tmp);
1078 tmp = format (0, "--file-prefix%c", 0);
1079 vec_add1 (conf->eal_init_args, tmp);
1080 tmp = format (0, "vpp%c", 0);
1081 vec_add1 (conf->eal_init_args, tmp);
1091 /* I'll bet that -c and -n must be the first and second args... */
1092 if (!conf->coremask_set_manually)
1094 vlib_thread_registration_t *tr;
1095 uword *coremask = 0;
1098 /* main thread core */
1099 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1101 for (i = 0; i < vec_len (tm->registrations); i++)
1103 tr = tm->registrations[i];
1104 coremask = clib_bitmap_or (coremask, tr->coremask);
1107 vec_insert (conf->eal_init_args, 2, 1);
1108 conf->eal_init_args[1] = (u8 *) "-c";
1109 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1110 conf->eal_init_args[2] = tmp;
1111 clib_bitmap_free (coremask);
1114 if (!conf->nchannels_set_manually)
1116 vec_insert (conf->eal_init_args, 2, 3);
1117 conf->eal_init_args[3] = (u8 *) "-n";
1118 tmp = format (0, "%d", conf->nchannels);
1119 conf->eal_init_args[4] = tmp;
1122 if (no_pci == 0 && geteuid () == 0)
1123 dpdk_bind_devices_to_uio (conf);
1126 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1127 devconf->x = conf->default_devconf.x ;
1130 pool_foreach (devconf, conf->dev_confs, ({
1132 /* default per-device config items */
1133 foreach_dpdk_device_config_item
1135 /* add DPDK EAL whitelist/blacklist entry */
1136 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1138 tmp = format (0, "-w%c", 0);
1139 vec_add1 (conf->eal_init_args, tmp);
1140 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1141 vec_add1 (conf->eal_init_args, tmp);
1143 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1145 tmp = format (0, "-b%c", 0);
1146 vec_add1 (conf->eal_init_args, tmp);
1147 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1148 vec_add1 (conf->eal_init_args, tmp);
1155 /* set master-lcore */
1156 tmp = format (0, "--master-lcore%c", 0);
1157 vec_add1 (conf->eal_init_args, tmp);
1158 tmp = format (0, "%u%c", tm->main_lcore, 0);
1159 vec_add1 (conf->eal_init_args, tmp);
1161 /* set socket-mem */
1162 tmp = format (0, "--socket-mem%c", 0);
1163 vec_add1 (conf->eal_init_args, tmp);
1164 tmp = format (0, "%s%c", socket_mem, 0);
1165 vec_add1 (conf->eal_init_args, tmp);
1167 /* NULL terminate the "argv" vector, in case of stupidity */
1168 vec_add1 (conf->eal_init_args, 0);
1169 _vec_len (conf->eal_init_args) -= 1;
1171 /* Set up DPDK eal and packet mbuf pool early. */
1173 log_level = (CLIB_DEBUG > 0) ? RTE_LOG_DEBUG : RTE_LOG_NOTICE;
1175 #if RTE_VERSION >= RTE_VERSION_NUM(17, 5, 0, 0)
1176 rte_log_set_global_level (log_level);
1178 rte_set_log_level (log_level);
1181 vm = vlib_get_main ();
1183 /* make copy of args as rte_eal_init tends to mess up with arg array */
1184 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1185 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1186 conf->eal_init_args[i]);
1189 rte_eal_init (vec_len (conf->eal_init_args),
1190 (char **) conf->eal_init_args);
1192 /* lazy umount hugepages */
1193 umount2 (DEFAULT_HUGE_DIR, MNT_DETACH);
1196 return clib_error_return (0, "rte_eal_init returned %d", ret);
1198 /* Dump the physical memory layout prior to creating the mbuf_pool */
1199 fprintf (stdout, "DPDK physical memory layout:\n");
1200 rte_dump_physmem_layout (stdout);
1202 /* main thread 1st */
1203 error = vlib_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1207 for (i = 0; i < RTE_MAX_LCORE; i++)
1209 error = vlib_buffer_pool_create (vm, conf->num_mbufs,
1210 rte_lcore_to_socket_id (i));
1219 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1222 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1224 vnet_main_t *vnm = vnet_get_main ();
1225 struct rte_eth_link prev_link = xd->link;
1227 u8 hw_flags_chg = 0;
1229 /* only update link state for PMD interfaces */
1230 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1233 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1234 memset (&xd->link, 0, sizeof (xd->link));
1235 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1237 if (LINK_STATE_ELOGS)
1239 vlib_main_t *vm = vlib_get_main ();
1240 ELOG_TYPE_DECLARE (e) =
1243 "update-link-state: sw_if_index %d, admin_up %d,"
1244 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1253 ed = ELOG_DATA (&vm->elog_main, e);
1254 ed->sw_if_index = xd->vlib_sw_if_index;
1255 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1256 ed->old_link_state = (u8)
1257 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1258 ed->new_link_state = (u8) xd->link.link_status;
1261 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) &&
1262 ((xd->link.link_status != 0) ^
1263 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1266 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1269 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1272 switch (xd->link.link_duplex)
1274 case ETH_LINK_HALF_DUPLEX:
1275 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1277 case ETH_LINK_FULL_DUPLEX:
1278 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1284 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1287 switch (xd->link.link_speed)
1289 case ETH_SPEED_NUM_10M:
1290 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1292 case ETH_SPEED_NUM_100M:
1293 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1295 case ETH_SPEED_NUM_1G:
1296 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1298 case ETH_SPEED_NUM_10G:
1299 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1301 case ETH_SPEED_NUM_40G:
1302 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1307 clib_warning ("unknown link speed %d", xd->link.link_speed);
1313 if (LINK_STATE_ELOGS)
1315 vlib_main_t *vm = vlib_get_main ();
1317 ELOG_TYPE_DECLARE (e) =
1320 "update-link-state: sw_if_index %d, new flags %d",.format_args
1328 ed = ELOG_DATA (&vm->elog_main, e);
1329 ed->sw_if_index = xd->vlib_sw_if_index;
1330 ed->flags = hw_flags;
1332 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1337 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1339 clib_error_t *error;
1340 vnet_main_t *vnm = vnet_get_main ();
1341 dpdk_main_t *dm = &dpdk_main;
1342 ethernet_main_t *em = ðernet_main;
1344 vlib_thread_main_t *tm = vlib_get_thread_main ();
1347 error = dpdk_lib_init (dm);
1350 clib_error_report (error);
1352 tm->worker_thread_release = 1;
1354 f64 now = vlib_time_now (vm);
1355 vec_foreach (xd, dm->devices)
1357 dpdk_update_link_state (xd, now);
1362 * Extra set up for bond interfaces:
1363 * 1. Setup MACs for bond interfaces and their slave links which was set
1364 * in dpdk_device_setup() but needs to be done again here to take effect.
1365 * 2. Set up info for bond interface related CLI support.
1367 int nports = rte_eth_dev_count ();
1370 for (i = 0; i < nports; i++)
1372 xd = &dm->devices[i];
1373 ASSERT (i == xd->device_index);
1374 if (xd->pmd == VNET_DPDK_PMD_BOND)
1378 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1381 vnet_hw_interface_t *bhi;
1382 ethernet_interface_t *bei;
1385 /* Get MAC of 1st slave link */
1387 (slink[0], (struct ether_addr *) addr);
1389 /* Set MAC of bounded interface to that of 1st slave link */
1390 clib_warning ("Set MAC for bond dev# %d", i);
1391 rv = rte_eth_bond_mac_address_set
1392 (i, (struct ether_addr *) addr);
1394 clib_warning ("Set MAC addr failure rv=%d", rv);
1396 /* Populate MAC of bonded interface in VPP hw tables */
1397 bhi = vnet_get_hw_interface
1398 (vnm, dm->devices[i].hw_if_index);
1399 bei = pool_elt_at_index
1400 (em->interfaces, bhi->hw_instance);
1401 clib_memcpy (bhi->hw_address, addr, 6);
1402 clib_memcpy (bei->address, addr, 6);
1404 /* Init l3 packet size allowed on bonded interface */
1405 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1406 bhi->max_l3_packet_bytes[VLIB_RX] =
1407 bhi->max_l3_packet_bytes[VLIB_TX] =
1408 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1410 { /* for all slave links */
1411 int slave = slink[--nlink];
1412 dpdk_device_t *sdev = &dm->devices[slave];
1413 vnet_hw_interface_t *shi;
1414 vnet_sw_interface_t *ssi;
1415 ethernet_interface_t *sei;
1416 /* Add MAC to all slave links except the first one */
1419 clib_warning ("Add MAC for slave dev# %d", slave);
1420 rv = rte_eth_dev_mac_addr_add
1421 (slave, (struct ether_addr *) addr, 0);
1423 clib_warning ("Add MAC addr failure rv=%d", rv);
1425 /* Set slaves bitmap for bonded interface */
1426 bhi->bond_info = clib_bitmap_set
1427 (bhi->bond_info, sdev->hw_if_index, 1);
1428 /* Set slave link flags on slave interface */
1429 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1430 ssi = vnet_get_sw_interface
1431 (vnm, sdev->vlib_sw_if_index);
1432 sei = pool_elt_at_index
1433 (em->interfaces, shi->hw_instance);
1435 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1436 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1437 clib_memcpy (shi->hw_address, addr, 6);
1438 clib_memcpy (sei->address, addr, 6);
1440 /* Set l3 packet size allowed as the lowest of slave */
1441 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1442 shi->max_l3_packet_bytes[VLIB_RX])
1443 bhi->max_l3_packet_bytes[VLIB_RX] =
1444 bhi->max_l3_packet_bytes[VLIB_TX] =
1445 shi->max_l3_packet_bytes[VLIB_RX];
1447 /* Set max packet size allowed as the lowest of slave */
1448 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1449 bhi->max_packet_bytes = shi->max_packet_bytes;
1460 * check each time through the loop in case intervals are changed
1462 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1463 dm->link_state_poll_interval : dm->stat_poll_interval;
1465 vlib_process_wait_for_event_or_clock (vm, min_wait);
1467 if (dm->admin_up_down_in_progress)
1468 /* skip the poll if an admin up down is in progress (on any interface) */
1471 vec_foreach (xd, dm->devices)
1473 f64 now = vlib_time_now (vm);
1474 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1475 dpdk_update_counters (xd, now);
1476 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1477 dpdk_update_link_state (xd, now);
1486 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1487 .function = dpdk_process,
1488 .type = VLIB_NODE_TYPE_PROCESS,
1489 .name = "dpdk-process",
1490 .process_log2_n_stack_bytes = 17,
1494 static clib_error_t *
1495 dpdk_init (vlib_main_t * vm)
1497 dpdk_main_t *dm = &dpdk_main;
1499 clib_error_t *error = 0;
1500 vlib_thread_main_t *tm = vlib_get_thread_main ();
1502 /* verify that structs are cacheline aligned */
1503 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1504 "Cache line marker must be 1st element in dpdk_device_t");
1505 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1506 CLIB_CACHE_LINE_BYTES,
1507 "Data in cache line 0 is bigger than cache line size");
1508 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1509 "Cache line marker must be 1st element in frame_queue_trace_t");
1512 dm->vnet_main = vnet_get_main ();
1513 dm->conf = &dpdk_config_main;
1515 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1517 return clib_error_return (0, "ethernet-input node AWOL");
1519 dm->ethernet_input_node_index = ei->index;
1521 dm->conf->nchannels = 4;
1522 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1523 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1525 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1527 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1528 dm->buffer_flags_template =
1529 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1530 | IP_BUFFER_L4_CHECKSUM_COMPUTED | IP_BUFFER_L4_CHECKSUM_CORRECT);
1532 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1533 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1536 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1542 VLIB_INIT_FUNCTION (dpdk_init);
1546 * fd.io coding-style-patch-verification: ON
1549 * eval: (c-set-style "gnu")