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 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
364 xd->port_conf.rxmode.hw_strip_crc = 1;
367 case VNET_DPDK_PMD_THUNDERX:
368 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
371 case VNET_DPDK_PMD_DPAA2:
372 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
376 case VNET_DPDK_PMD_ENIC:
377 rte_eth_link_get_nowait (i, &l);
378 if (l.link_speed == 40000)
379 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
381 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
384 /* Intel Red Rock Canyon */
385 case VNET_DPDK_PMD_FM10K:
386 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
387 xd->port_conf.rxmode.hw_strip_crc = 1;
391 case VNET_DPDK_PMD_VIRTIO:
392 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
393 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
394 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
398 case VNET_DPDK_PMD_VMXNET3:
399 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
400 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
403 case VNET_DPDK_PMD_AF_PACKET:
404 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
405 xd->port_id = af_packet_port_id++;
408 case VNET_DPDK_PMD_BOND:
409 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
410 xd->port_id = bond_ether_port_id++;
413 case VNET_DPDK_PMD_VIRTIO_USER:
414 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
418 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
421 if (devconf->num_rx_desc)
422 xd->nb_rx_desc = devconf->num_rx_desc;
424 if (devconf->num_tx_desc)
425 xd->nb_tx_desc = devconf->num_tx_desc;
429 * Ensure default mtu is not > the mtu read from the hardware.
430 * Otherwise rte_eth_dev_configure() will fail and the port will
433 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
436 * This device does not support the platforms's max frame
437 * size. Use it's advertised mru instead.
439 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
443 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
446 * Some platforms do not account for Ethernet FCS (4 bytes) in
447 * MTU calculations. To interop with them increase mru but only
448 * if the device's settings can support it.
450 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
451 xd->port_conf.rxmode.hw_strip_crc)
454 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
455 * stripped by h/w and so will not consume any buffer memory.
457 xd->port_conf.rxmode.max_rx_pkt_len += 4;
461 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
463 f64 now = vlib_time_now (vm);
465 rnd = (u32) (now * 1e6);
466 rnd = random_u32 (&rnd);
467 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
472 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
474 if (xd->tx_q_used < tm->n_vlib_mains)
475 dpdk_device_lock_init (xd);
477 xd->device_index = xd - dm->devices;
478 ASSERT (i == xd->device_index);
479 xd->per_interface_next_index = ~0;
481 /* assign interface to input thread */
482 dpdk_device_and_queue_t *dq;
485 if (devconf->hqos_enabled)
487 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
489 if (devconf->hqos.hqos_thread_valid)
491 int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
493 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
494 return clib_error_return (0, "invalid HQoS thread index");
496 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
497 dq->device = xd->device_index;
502 int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
504 if (dm->hqos_cpu_count == 0)
505 return clib_error_return (0, "no HQoS threads available");
507 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
508 dq->device = xd->device_index;
512 if (next_hqos_cpu == dm->hqos_cpu_count)
515 devconf->hqos.hqos_thread_valid = 1;
516 devconf->hqos.hqos_thread = cpu;
520 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
521 CLIB_CACHE_LINE_BYTES);
522 for (j = 0; j < tm->n_vlib_mains; j++)
524 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
525 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
526 vec_reset_length (xd->tx_vectors[j]);
529 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
530 CLIB_CACHE_LINE_BYTES);
531 for (j = 0; j < xd->rx_q_used; j++)
533 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
534 CLIB_CACHE_LINE_BYTES);
535 vec_reset_length (xd->rx_vectors[j]);
538 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
539 CLIB_CACHE_LINE_BYTES);
542 /* count the number of descriptors used for this device */
543 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
545 error = ethernet_register_interface
546 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
547 /* ethernet address */ addr,
548 &xd->hw_if_index, dpdk_flag_change);
552 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
553 xd->vlib_sw_if_index = sw->sw_if_index;
554 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
555 dpdk_input_node.index);
557 if (devconf->workers)
562 clib_bitmap_foreach (i, devconf->workers, ({
563 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
564 vdm->first_worker_thread_index + i);
569 for (q = 0; q < xd->rx_q_used; q++)
571 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
575 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
577 dpdk_device_setup (xd);
579 if (vec_len (xd->errors))
580 clib_warning ("setup failed for device %U. Errors:\n %U",
581 format_dpdk_device_name, i,
582 format_dpdk_device_errors, xd);
584 if (devconf->hqos_enabled)
587 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
593 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
594 * specified otherwise in the startup config.
595 * For other NICs default to VLAN strip disabled, unless specified
596 * otherwis in the startup config.
598 if (xd->pmd == VNET_DPDK_PMD_ENIC)
600 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
601 vlan_strip = 1; /* remove vlan tag from VIC port by default */
603 clib_warning ("VLAN strip disabled for interface\n");
605 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
611 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
612 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
613 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
614 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
615 clib_warning ("VLAN strip enabled for interface\n");
617 clib_warning ("VLAN strip cannot be supported by interface\n");
620 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
621 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
623 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
626 if (nb_desc > dm->conf->num_mbufs)
627 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
628 dm->conf->num_mbufs, nb_desc);
634 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
636 vlib_pci_main_t *pm = &pci_main;
638 vlib_pci_device_t *d;
640 int num_whitelisted = vec_len (conf->dev_confs);
643 pool_foreach (d, pm->pci_devs, ({
644 dpdk_device_config_t * devconf = 0;
645 vec_reset_length (pci_addr);
646 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
648 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
653 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
658 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
662 if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
665 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
667 /* all Intel network devices */
668 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
670 /* all Intel QAT devices VFs */
671 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
672 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
675 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
678 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
682 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
683 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
688 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
694 pool_get (conf->dev_confs, devconf);
695 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
696 devconf - conf->dev_confs);
697 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
699 devconf->is_blacklisted = 1;
700 clib_error_report (error);
707 static clib_error_t *
708 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
709 unformat_input_t * input, u8 is_default)
711 clib_error_t *error = 0;
713 dpdk_device_config_t *devconf;
714 unformat_input_t sub_input;
718 devconf = &conf->default_devconf;
722 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
726 pool_get (conf->dev_confs, devconf);
727 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
728 devconf - conf->dev_confs);
731 return clib_error_return (0,
732 "duplicate configuration for PCI address %U",
733 format_vlib_pci_addr, &pci_addr);
736 devconf->pci_addr.as_u32 = pci_addr.as_u32;
737 devconf->hqos_enabled = 0;
738 dpdk_device_config_hqos_default (&devconf->hqos);
743 unformat_skip_white_space (input);
744 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
746 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
748 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
750 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
752 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
754 else if (unformat (input, "workers %U", unformat_bitmap_list,
759 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
761 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
765 else if (unformat (input, "vlan-strip-offload off"))
766 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
767 else if (unformat (input, "vlan-strip-offload on"))
768 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
771 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
773 devconf->hqos_enabled = 1;
774 error = unformat_hqos (&sub_input, &devconf->hqos);
778 else if (unformat (input, "hqos"))
780 devconf->hqos_enabled = 1;
784 error = clib_error_return (0, "unknown input `%U'",
785 format_unformat_error, input);
793 if (devconf->workers && devconf->num_rx_queues == 0)
794 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
795 else if (devconf->workers &&
796 clib_bitmap_count_set_bits (devconf->workers) !=
797 devconf->num_rx_queues)
799 clib_error_return (0,
800 "%U: number of worker threadds must be "
801 "equal to number of rx queues", format_vlib_pci_addr,
807 static clib_error_t *
808 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
810 clib_error_t *error = 0;
811 dpdk_main_t *dm = &dpdk_main;
812 dpdk_config_main_t *conf = &dpdk_config_main;
813 vlib_thread_main_t *tm = vlib_get_thread_main ();
814 dpdk_device_config_t *devconf;
815 vlib_pci_addr_t pci_addr;
816 unformat_input_t sub_input;
819 u8 *rte_cmd = 0, *ethname = 0;
822 int num_whitelisted = 0;
829 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
830 log_level = RTE_LOG_NOTICE;
832 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
835 if (unformat (input, "no-hugetlb"))
837 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
841 else if (unformat (input, "enable-tcp-udp-checksum"))
842 conf->enable_tcp_udp_checksum = 1;
844 else if (unformat (input, "decimal-interface-names"))
845 conf->interface_name_format_decimal = 1;
847 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
850 else if (unformat (input, "no-multi-seg"))
851 conf->no_multi_seg = 1;
853 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
857 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
865 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
866 unformat_vlib_cli_sub_input, &sub_input))
868 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
875 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
877 error = dpdk_device_config (conf, pci_addr, 0, 0);
884 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
886 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
888 else if (unformat (input, "socket-mem %s", &socket_mem))
890 else if (unformat (input, "no-pci"))
893 tmp = format (0, "--no-pci%c", 0);
894 vec_add1 (conf->eal_init_args, tmp);
896 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
900 else if (unformat(input, #a)) \
902 tmp = format (0, "--%s%c", #a, 0); \
903 vec_add1 (conf->eal_init_args, tmp); \
905 foreach_eal_double_hyphen_predicate_arg
908 else if (unformat(input, #a " %s", &s)) \
910 if (!strncmp(#a, "huge-dir", 8)) \
912 else if (!strncmp(#a, "file-prefix", 11)) \
914 tmp = format (0, "--%s%c", #a, 0); \
915 vec_add1 (conf->eal_init_args, tmp); \
917 if (!strncmp(#a, "vdev", 4)) \
918 if (strstr((char*)s, "af_packet")) \
919 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
920 vec_add1 (conf->eal_init_args, s); \
922 foreach_eal_double_hyphen_arg
925 else if (unformat(input, #a " %s", &s)) \
927 tmp = format (0, "-%s%c", #b, 0); \
928 vec_add1 (conf->eal_init_args, tmp); \
930 vec_add1 (conf->eal_init_args, s); \
932 foreach_eal_single_hyphen_arg
935 else if (unformat(input, #a " %s", &s)) \
937 tmp = format (0, "-%s%c", #b, 0); \
938 vec_add1 (conf->eal_init_args, tmp); \
940 vec_add1 (conf->eal_init_args, s); \
941 conf->a##_set_manually = 1; \
943 foreach_eal_single_hyphen_mandatory_arg
945 else if (unformat (input, "default"))
948 else if (unformat_skip_white_space (input))
952 error = clib_error_return (0, "unknown input `%U'",
953 format_unformat_error, input);
958 if (!conf->uio_driver_name)
959 conf->uio_driver_name = format (0, "uio_pci_generic%c", 0);
962 * Use 1G huge pages if available.
964 if (!no_huge && !huge_dir)
966 u32 x, *mem_by_socket = 0;
973 umount (DEFAULT_HUGE_DIR);
975 /* Process "socket-mem" parameter value */
976 if (vec_len (socket_mem))
979 unformat_init_vector (&in, socket_mem);
980 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
982 if (unformat (&in, "%u,", &x))
984 else if (unformat (&in, "%u", &x))
986 else if (unformat (&in, ","))
991 vec_add1 (mem_by_socket, x);
996 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1003 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1005 vec_validate(mem_by_socket, c);
1006 mem_by_socket[c] = 256; /* default per-socket mem */
1012 /* check if available enough 1GB pages for each socket */
1014 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1016 int pages_avail, page_size, mem;
1018 vec_validate(mem_by_socket, c);
1019 mem = mem_by_socket[c];
1022 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1024 if (pages_avail < 0 || page_size * pages_avail < mem)
1028 pages_avail = vlib_sysfs_get_free_hugepages(c, page_size * 1024);
1030 if (pages_avail < 0 || page_size * pages_avail < mem)
1035 if (mem_by_socket == 0)
1037 error = clib_error_return (0, "mem_by_socket NULL");
1040 _vec_len (mem_by_socket) = c + 1;
1042 /* regenerate socket_mem string */
1043 vec_foreach_index (x, mem_by_socket)
1044 socket_mem = format (socket_mem, "%s%u",
1045 socket_mem ? "," : "", mem_by_socket[x]);
1046 socket_mem = format (socket_mem, "%c", 0);
1048 vec_free (mem_by_socket);
1050 rv = mkdir (VPP_RUN_DIR, 0755);
1051 if (rv && errno != EEXIST)
1053 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1054 VPP_RUN_DIR, errno);
1058 rv = mkdir (DEFAULT_HUGE_DIR, 0755);
1059 if (rv && errno != EEXIST)
1061 error = clib_error_return (0, "mkdir '%s' failed errno %d",
1062 DEFAULT_HUGE_DIR, errno);
1066 if (use_1g && !(less_than_1g && use_2m))
1069 mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, "pagesize=1G");
1073 rv = mount ("none", DEFAULT_HUGE_DIR, "hugetlbfs", 0, NULL);
1077 return clib_error_return (0, "not enough free huge pages");
1082 error = clib_error_return (0, "mount failed %d", errno);
1086 tmp = format (0, "--huge-dir%c", 0);
1087 vec_add1 (conf->eal_init_args, tmp);
1088 tmp = format (0, "%s%c", DEFAULT_HUGE_DIR, 0);
1089 vec_add1 (conf->eal_init_args, tmp);
1092 tmp = format (0, "--file-prefix%c", 0);
1093 vec_add1 (conf->eal_init_args, tmp);
1094 tmp = format (0, "vpp%c", 0);
1095 vec_add1 (conf->eal_init_args, tmp);
1105 /* I'll bet that -c and -n must be the first and second args... */
1106 if (!conf->coremask_set_manually)
1108 vlib_thread_registration_t *tr;
1109 uword *coremask = 0;
1112 /* main thread core */
1113 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1115 for (i = 0; i < vec_len (tm->registrations); i++)
1117 tr = tm->registrations[i];
1118 coremask = clib_bitmap_or (coremask, tr->coremask);
1121 vec_insert (conf->eal_init_args, 2, 1);
1122 conf->eal_init_args[1] = (u8 *) "-c";
1123 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1124 conf->eal_init_args[2] = tmp;
1125 clib_bitmap_free (coremask);
1128 if (!conf->nchannels_set_manually)
1130 vec_insert (conf->eal_init_args, 2, 3);
1131 conf->eal_init_args[3] = (u8 *) "-n";
1132 tmp = format (0, "%d", conf->nchannels);
1133 conf->eal_init_args[4] = tmp;
1136 if (no_pci == 0 && geteuid () == 0)
1137 dpdk_bind_devices_to_uio (conf);
1140 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1141 devconf->x = conf->default_devconf.x ;
1144 pool_foreach (devconf, conf->dev_confs, ({
1146 /* default per-device config items */
1147 foreach_dpdk_device_config_item
1149 /* add DPDK EAL whitelist/blacklist entry */
1150 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1152 tmp = format (0, "-w%c", 0);
1153 vec_add1 (conf->eal_init_args, tmp);
1154 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1155 vec_add1 (conf->eal_init_args, tmp);
1157 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1159 tmp = format (0, "-b%c", 0);
1160 vec_add1 (conf->eal_init_args, tmp);
1161 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1162 vec_add1 (conf->eal_init_args, tmp);
1169 /* set master-lcore */
1170 tmp = format (0, "--master-lcore%c", 0);
1171 vec_add1 (conf->eal_init_args, tmp);
1172 tmp = format (0, "%u%c", tm->main_lcore, 0);
1173 vec_add1 (conf->eal_init_args, tmp);
1175 /* set socket-mem */
1176 tmp = format (0, "--socket-mem%c", 0);
1177 vec_add1 (conf->eal_init_args, tmp);
1178 tmp = format (0, "%s%c", socket_mem, 0);
1179 vec_add1 (conf->eal_init_args, tmp);
1181 /* NULL terminate the "argv" vector, in case of stupidity */
1182 vec_add1 (conf->eal_init_args, 0);
1183 _vec_len (conf->eal_init_args) -= 1;
1185 /* Set up DPDK eal and packet mbuf pool early. */
1187 #if RTE_VERSION >= RTE_VERSION_NUM(17, 5, 0, 0)
1188 rte_log_set_global_level (log_level);
1190 rte_set_log_level (log_level);
1193 vm = vlib_get_main ();
1195 /* make copy of args as rte_eal_init tends to mess up with arg array */
1196 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1197 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1198 conf->eal_init_args[i]);
1201 rte_eal_init (vec_len (conf->eal_init_args),
1202 (char **) conf->eal_init_args);
1204 /* lazy umount hugepages */
1205 umount2 (DEFAULT_HUGE_DIR, MNT_DETACH);
1208 return clib_error_return (0, "rte_eal_init returned %d", ret);
1210 /* Dump the physical memory layout prior to creating the mbuf_pool */
1211 fprintf (stdout, "DPDK physical memory layout:\n");
1212 rte_dump_physmem_layout (stdout);
1214 /* main thread 1st */
1215 error = vlib_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1219 for (i = 0; i < RTE_MAX_LCORE; i++)
1221 error = vlib_buffer_pool_create (vm, conf->num_mbufs,
1222 rte_lcore_to_socket_id (i));
1231 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1234 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1236 vnet_main_t *vnm = vnet_get_main ();
1237 struct rte_eth_link prev_link = xd->link;
1239 u8 hw_flags_chg = 0;
1241 /* only update link state for PMD interfaces */
1242 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1245 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1246 memset (&xd->link, 0, sizeof (xd->link));
1247 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1249 if (LINK_STATE_ELOGS)
1251 vlib_main_t *vm = vlib_get_main ();
1252 ELOG_TYPE_DECLARE (e) =
1255 "update-link-state: sw_if_index %d, admin_up %d,"
1256 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1265 ed = ELOG_DATA (&vm->elog_main, e);
1266 ed->sw_if_index = xd->vlib_sw_if_index;
1267 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1268 ed->old_link_state = (u8)
1269 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1270 ed->new_link_state = (u8) xd->link.link_status;
1273 if ((xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) &&
1274 ((xd->link.link_status != 0) ^
1275 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1278 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1281 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1284 switch (xd->link.link_duplex)
1286 case ETH_LINK_HALF_DUPLEX:
1287 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1289 case ETH_LINK_FULL_DUPLEX:
1290 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1296 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1299 switch (xd->link.link_speed)
1301 case ETH_SPEED_NUM_10M:
1302 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1304 case ETH_SPEED_NUM_100M:
1305 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1307 case ETH_SPEED_NUM_1G:
1308 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1310 case ETH_SPEED_NUM_10G:
1311 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1313 case ETH_SPEED_NUM_40G:
1314 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1319 clib_warning ("unknown link speed %d", xd->link.link_speed);
1325 if (LINK_STATE_ELOGS)
1327 vlib_main_t *vm = vlib_get_main ();
1329 ELOG_TYPE_DECLARE (e) =
1332 "update-link-state: sw_if_index %d, new flags %d",.format_args
1340 ed = ELOG_DATA (&vm->elog_main, e);
1341 ed->sw_if_index = xd->vlib_sw_if_index;
1342 ed->flags = hw_flags;
1344 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1349 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1351 clib_error_t *error;
1352 vnet_main_t *vnm = vnet_get_main ();
1353 dpdk_main_t *dm = &dpdk_main;
1354 ethernet_main_t *em = ðernet_main;
1356 vlib_thread_main_t *tm = vlib_get_thread_main ();
1359 error = dpdk_lib_init (dm);
1362 clib_error_report (error);
1364 tm->worker_thread_release = 1;
1366 f64 now = vlib_time_now (vm);
1367 vec_foreach (xd, dm->devices)
1369 dpdk_update_link_state (xd, now);
1374 * Extra set up for bond interfaces:
1375 * 1. Setup MACs for bond interfaces and their slave links which was set
1376 * in dpdk_device_setup() but needs to be done again here to take effect.
1377 * 2. Set up info for bond interface related CLI support.
1379 int nports = rte_eth_dev_count ();
1382 for (i = 0; i < nports; i++)
1384 xd = &dm->devices[i];
1385 ASSERT (i == xd->device_index);
1386 if (xd->pmd == VNET_DPDK_PMD_BOND)
1390 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1393 vnet_hw_interface_t *bhi;
1394 ethernet_interface_t *bei;
1397 /* Get MAC of 1st slave link */
1399 (slink[0], (struct ether_addr *) addr);
1401 /* Set MAC of bounded interface to that of 1st slave link */
1402 clib_warning ("Set MAC for bond dev# %d", i);
1403 rv = rte_eth_bond_mac_address_set
1404 (i, (struct ether_addr *) addr);
1406 clib_warning ("Set MAC addr failure rv=%d", rv);
1408 /* Populate MAC of bonded interface in VPP hw tables */
1409 bhi = vnet_get_hw_interface
1410 (vnm, dm->devices[i].hw_if_index);
1411 bei = pool_elt_at_index
1412 (em->interfaces, bhi->hw_instance);
1413 clib_memcpy (bhi->hw_address, addr, 6);
1414 clib_memcpy (bei->address, addr, 6);
1416 /* Init l3 packet size allowed on bonded interface */
1417 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1418 bhi->max_l3_packet_bytes[VLIB_RX] =
1419 bhi->max_l3_packet_bytes[VLIB_TX] =
1420 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1422 { /* for all slave links */
1423 int slave = slink[--nlink];
1424 dpdk_device_t *sdev = &dm->devices[slave];
1425 vnet_hw_interface_t *shi;
1426 vnet_sw_interface_t *ssi;
1427 ethernet_interface_t *sei;
1428 /* Add MAC to all slave links except the first one */
1431 clib_warning ("Add MAC for slave dev# %d", slave);
1432 rv = rte_eth_dev_mac_addr_add
1433 (slave, (struct ether_addr *) addr, 0);
1435 clib_warning ("Add MAC addr failure rv=%d", rv);
1437 /* Set slaves bitmap for bonded interface */
1438 bhi->bond_info = clib_bitmap_set
1439 (bhi->bond_info, sdev->hw_if_index, 1);
1440 /* Set slave link flags on slave interface */
1441 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1442 ssi = vnet_get_sw_interface
1443 (vnm, sdev->vlib_sw_if_index);
1444 sei = pool_elt_at_index
1445 (em->interfaces, shi->hw_instance);
1447 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1448 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1449 clib_memcpy (shi->hw_address, addr, 6);
1450 clib_memcpy (sei->address, addr, 6);
1452 /* Set l3 packet size allowed as the lowest of slave */
1453 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1454 shi->max_l3_packet_bytes[VLIB_RX])
1455 bhi->max_l3_packet_bytes[VLIB_RX] =
1456 bhi->max_l3_packet_bytes[VLIB_TX] =
1457 shi->max_l3_packet_bytes[VLIB_RX];
1459 /* Set max packet size allowed as the lowest of slave */
1460 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1461 bhi->max_packet_bytes = shi->max_packet_bytes;
1472 * check each time through the loop in case intervals are changed
1474 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1475 dm->link_state_poll_interval : dm->stat_poll_interval;
1477 vlib_process_wait_for_event_or_clock (vm, min_wait);
1479 if (dm->admin_up_down_in_progress)
1480 /* skip the poll if an admin up down is in progress (on any interface) */
1483 vec_foreach (xd, dm->devices)
1485 f64 now = vlib_time_now (vm);
1486 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1487 dpdk_update_counters (xd, now);
1488 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1489 dpdk_update_link_state (xd, now);
1498 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1499 .function = dpdk_process,
1500 .type = VLIB_NODE_TYPE_PROCESS,
1501 .name = "dpdk-process",
1502 .process_log2_n_stack_bytes = 17,
1506 static clib_error_t *
1507 dpdk_init (vlib_main_t * vm)
1509 dpdk_main_t *dm = &dpdk_main;
1511 clib_error_t *error = 0;
1512 vlib_thread_main_t *tm = vlib_get_thread_main ();
1514 /* verify that structs are cacheline aligned */
1515 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1516 "Cache line marker must be 1st element in dpdk_device_t");
1517 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1518 CLIB_CACHE_LINE_BYTES,
1519 "Data in cache line 0 is bigger than cache line size");
1520 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1521 "Cache line marker must be 1st element in frame_queue_trace_t");
1524 dm->vnet_main = vnet_get_main ();
1525 dm->conf = &dpdk_config_main;
1527 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1529 return clib_error_return (0, "ethernet-input node AWOL");
1531 dm->ethernet_input_node_index = ei->index;
1533 dm->conf->nchannels = 4;
1534 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1535 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1537 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1539 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1540 dm->buffer_flags_template =
1541 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1542 | IP_BUFFER_L4_CHECKSUM_COMPUTED | IP_BUFFER_L4_CHECKSUM_CORRECT);
1544 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1545 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1548 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1554 VLIB_INIT_FUNCTION (dpdk_init);
1558 * fd.io coding-style-patch-verification: ON
1561 * eval: (c-set-style "gnu")