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>
20 #include <vppinfra/linux/sysfs.h>
21 #include <vlib/unix/unix.h>
23 #include <vnet/ethernet/ethernet.h>
24 #include <dpdk/device/dpdk.h>
25 #include <vlib/pci/pci.h>
33 #include <sys/mount.h>
37 #include <dpdk/device/dpdk_priv.h>
39 dpdk_main_t dpdk_main;
41 #define LINK_STATE_ELOGS 0
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_50G)
65 return VNET_DPDK_PORT_TYPE_ETH_50G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
67 return VNET_DPDK_PORT_TYPE_ETH_40G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
69 return VNET_DPDK_PORT_TYPE_ETH_25G;
70 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
71 return VNET_DPDK_PORT_TYPE_ETH_10G;
72 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
73 return VNET_DPDK_PORT_TYPE_ETH_1G;
75 return VNET_DPDK_PORT_TYPE_UNKNOWN;
80 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
82 dpdk_main_t *dm = &dpdk_main;
83 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
86 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
88 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
90 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
91 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
93 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
95 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
97 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
98 rte_eth_promiscuous_enable (xd->device_index);
100 rte_eth_promiscuous_disable (xd->device_index);
103 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
107 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
109 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
110 dpdk_device_stop (xd);
112 rv = rte_eth_dev_configure
113 (xd->device_index, xd->rx_q_used, xd->tx_q_used, &xd->port_conf);
116 vlib_cli_output (vlib_get_main (),
117 "rte_eth_dev_configure[%d]: err %d",
118 xd->device_index, rv);
120 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
122 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
123 dpdk_device_start (xd);
130 dpdk_device_lock_init (dpdk_device_t * xd)
133 vec_validate (xd->lockp, xd->tx_q_used - 1);
134 for (q = 0; q < xd->tx_q_used; q++)
136 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
137 CLIB_CACHE_LINE_BYTES);
138 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
142 static struct rte_mempool_ops *
143 get_ops_by_name (i8 * ops_name)
147 for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
149 if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
150 return &rte_mempool_ops_table.ops[i];
157 dpdk_ring_alloc (struct rte_mempool *mp)
159 u32 rg_flags = 0, count;
161 i8 rg_name[RTE_RING_NAMESIZE];
164 ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
165 if (ret < 0 || ret >= (i32) sizeof (rg_name))
166 return -ENAMETOOLONG;
169 if (mp->flags & MEMPOOL_F_SP_PUT)
170 rg_flags |= RING_F_SP_ENQ;
171 if (mp->flags & MEMPOOL_F_SC_GET)
172 rg_flags |= RING_F_SC_DEQ;
174 count = rte_align32pow2 (mp->size + 1);
176 * Allocate the ring that will be used to store objects.
177 * Ring functions will return appropriate errors if we are
178 * running as a secondary process etc., so no checks made
179 * in this function for that condition.
181 /* XXX can we get memory from the right socket? */
182 r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
183 CLIB_CACHE_LINE_BYTES);
185 /* XXX rte_ring_lookup will not work */
187 ret = rte_ring_init (r, rg_name, count, rg_flags);
196 static clib_error_t *
197 dpdk_lib_init (dpdk_main_t * dm)
203 vlib_main_t *vm = vlib_get_main ();
204 vlib_thread_main_t *tm = vlib_get_thread_main ();
205 vnet_device_main_t *vdm = &vnet_device_main;
206 vnet_sw_interface_t *sw;
207 vnet_hw_interface_t *hi;
209 vlib_pci_addr_t last_pci_addr;
210 u32 last_pci_addr_port = 0;
211 vlib_thread_registration_t *tr_hqos;
214 u32 next_hqos_cpu = 0;
215 u8 af_packet_port_id = 0;
216 u8 bond_ether_port_id = 0;
217 last_pci_addr.as_u32 = ~0;
219 dm->hqos_cpu_first_index = 0;
220 dm->hqos_cpu_count = 0;
222 /* find out which cpus will be used for I/O TX */
223 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
224 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
226 if (tr_hqos && tr_hqos->count > 0)
228 dm->hqos_cpu_first_index = tr_hqos->first_index;
229 dm->hqos_cpu_count = tr_hqos->count;
232 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
233 CLIB_CACHE_LINE_BYTES);
235 nports = rte_eth_dev_count ();
238 clib_warning ("DPDK drivers found no ports...");
242 clib_warning ("DPDK drivers found %d ports...", nports);
245 * All buffers are all allocated from the same rte_mempool.
246 * Thus they all have the same number of data bytes.
248 dm->vlib_buffer_free_list_index =
249 vlib_buffer_get_or_create_free_list (vm,
250 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
253 if (dm->conf->enable_tcp_udp_checksum)
254 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
255 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
257 /* vlib_buffer_t template */
258 vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1,
259 CLIB_CACHE_LINE_BYTES);
260 for (i = 0; i < tm->n_vlib_mains; i++)
262 vlib_buffer_free_list_t *fl;
263 vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i);
264 fl = vlib_buffer_get_free_list (vm,
265 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
266 vlib_buffer_init_for_free_list (bt, fl);
267 bt->flags = dm->buffer_flags_template;
268 bt->current_data = -RTE_PKTMBUF_HEADROOM;
269 vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
272 for (i = 0; i < nports; i++)
277 struct rte_eth_dev_info dev_info;
278 struct rte_eth_link l;
279 dpdk_device_config_t *devconf = 0;
280 vlib_pci_addr_t pci_addr;
283 rte_eth_dev_info_get (i, &dev_info);
284 if (dev_info.pci_dev) /* bonded interface has no pci info */
286 pci_addr.domain = dev_info.pci_dev->addr.domain;
287 pci_addr.bus = dev_info.pci_dev->addr.bus;
288 pci_addr.slot = dev_info.pci_dev->addr.devid;
289 pci_addr.function = dev_info.pci_dev->addr.function;
291 hash_get (dm->conf->device_config_index_by_pci_addr,
296 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
298 devconf = &dm->conf->default_devconf;
300 /* Create vnet interface */
301 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
302 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
303 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
304 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
306 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
307 if (dev_info.pci_dev)
309 struct rte_eth_dev_info di = { 0 };
310 rte_eth_dev_info_get (i + 1, &di);
311 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
312 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
313 sizeof (struct rte_pci_addr)) == 0)
315 xd->interface_name_suffix = format (0, "0");
316 last_pci_addr.as_u32 = pci_addr.as_u32;
317 last_pci_addr_port = i;
319 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
321 xd->interface_name_suffix =
322 format (0, "%u", i - last_pci_addr_port);
326 last_pci_addr.as_u32 = ~0;
330 last_pci_addr.as_u32 = ~0;
332 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
333 sizeof (struct rte_eth_txconf));
334 if (dm->conf->no_multi_seg)
336 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
337 port_conf_template.rxmode.jumbo_frame = 0;
338 port_conf_template.rxmode.enable_scatter = 0;
342 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
343 port_conf_template.rxmode.jumbo_frame = 1;
344 port_conf_template.rxmode.enable_scatter = 1;
345 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
348 clib_memcpy (&xd->port_conf, &port_conf_template,
349 sizeof (struct rte_eth_conf));
351 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
353 if (devconf->num_tx_queues > 0
354 && devconf->num_tx_queues < xd->tx_q_used)
355 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
357 if (devconf->num_rx_queues > 1 && dm->use_rss == 0)
362 if (devconf->num_rx_queues > 1
363 && dev_info.max_rx_queues >= devconf->num_rx_queues)
365 xd->rx_q_used = devconf->num_rx_queues;
366 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
367 if (devconf->rss_fn == 0)
368 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
369 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
371 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
376 xd->flags |= DPDK_DEVICE_FLAG_PMD;
378 /* workaround for drivers not setting driver_name */
379 if ((!dev_info.driver_name) && (dev_info.pci_dev))
380 dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
382 ASSERT (dev_info.driver_name);
388 #define _(s,f) else if (dev_info.driver_name && \
389 !strcmp(dev_info.driver_name, s)) \
390 xd->pmd = VNET_DPDK_PMD_##f;
396 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
398 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
399 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
400 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
404 /* Drivers with valid speed_capa set */
405 case VNET_DPDK_PMD_E1000EM:
406 case VNET_DPDK_PMD_IGB:
407 case VNET_DPDK_PMD_IXGBE:
408 case VNET_DPDK_PMD_I40E:
409 xd->port_type = port_type_from_speed_capa (&dev_info);
410 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
411 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
414 case VNET_DPDK_PMD_CXGBE:
415 case VNET_DPDK_PMD_MLX4:
416 case VNET_DPDK_PMD_MLX5:
417 xd->port_type = port_type_from_speed_capa (&dev_info);
421 case VNET_DPDK_PMD_IGBVF:
422 case VNET_DPDK_PMD_IXGBEVF:
423 case VNET_DPDK_PMD_I40EVF:
424 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
425 xd->port_conf.rxmode.hw_strip_crc = 1;
428 case VNET_DPDK_PMD_THUNDERX:
429 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
430 xd->port_conf.rxmode.hw_strip_crc = 1;
433 case VNET_DPDK_PMD_DPAA2:
434 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
438 case VNET_DPDK_PMD_ENIC:
439 rte_eth_link_get_nowait (i, &l);
440 if (l.link_speed == 40000)
441 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
443 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
446 /* Intel Red Rock Canyon */
447 case VNET_DPDK_PMD_FM10K:
448 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
449 xd->port_conf.rxmode.hw_strip_crc = 1;
453 case VNET_DPDK_PMD_VIRTIO:
454 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
455 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
456 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
460 case VNET_DPDK_PMD_VMXNET3:
461 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
462 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
465 case VNET_DPDK_PMD_AF_PACKET:
466 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
467 xd->port_id = af_packet_port_id++;
470 case VNET_DPDK_PMD_BOND:
471 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
472 xd->port_id = bond_ether_port_id++;
475 case VNET_DPDK_PMD_VIRTIO_USER:
476 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
480 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
483 if (devconf->num_rx_desc)
484 xd->nb_rx_desc = devconf->num_rx_desc;
486 if (devconf->num_tx_desc)
487 xd->nb_tx_desc = devconf->num_tx_desc;
491 * Ensure default mtu is not > the mtu read from the hardware.
492 * Otherwise rte_eth_dev_configure() will fail and the port will
495 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
498 * This device does not support the platforms's max frame
499 * size. Use it's advertised mru instead.
501 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
505 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
508 * Some platforms do not account for Ethernet FCS (4 bytes) in
509 * MTU calculations. To interop with them increase mru but only
510 * if the device's settings can support it.
512 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
513 xd->port_conf.rxmode.hw_strip_crc)
516 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
517 * stripped by h/w and so will not consume any buffer memory.
519 xd->port_conf.rxmode.max_rx_pkt_len += 4;
523 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
525 f64 now = vlib_time_now (vm);
527 rnd = (u32) (now * 1e6);
528 rnd = random_u32 (&rnd);
529 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
534 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
536 if (xd->tx_q_used < tm->n_vlib_mains)
537 dpdk_device_lock_init (xd);
539 xd->device_index = xd - dm->devices;
540 ASSERT (i == xd->device_index);
541 xd->per_interface_next_index = ~0;
543 /* assign interface to input thread */
544 dpdk_device_and_queue_t *dq;
547 if (devconf->hqos_enabled)
549 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
551 if (devconf->hqos.hqos_thread_valid)
553 int cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
555 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
556 return clib_error_return (0, "invalid HQoS thread index");
558 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
559 dq->device = xd->device_index;
564 int cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
566 if (dm->hqos_cpu_count == 0)
567 return clib_error_return (0, "no HQoS threads available");
569 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
570 dq->device = xd->device_index;
574 if (next_hqos_cpu == dm->hqos_cpu_count)
577 devconf->hqos.hqos_thread_valid = 1;
578 devconf->hqos.hqos_thread = cpu;
582 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
583 CLIB_CACHE_LINE_BYTES);
584 for (j = 0; j < tm->n_vlib_mains; j++)
586 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
587 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
588 vec_reset_length (xd->tx_vectors[j]);
591 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
592 CLIB_CACHE_LINE_BYTES);
593 for (j = 0; j < xd->rx_q_used; j++)
595 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
596 CLIB_CACHE_LINE_BYTES);
597 vec_reset_length (xd->rx_vectors[j]);
600 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
601 CLIB_CACHE_LINE_BYTES);
604 /* count the number of descriptors used for this device */
605 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
607 error = ethernet_register_interface
608 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
609 /* ethernet address */ addr,
610 &xd->hw_if_index, dpdk_flag_change);
614 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
615 xd->vlib_sw_if_index = sw->sw_if_index;
616 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
617 dpdk_input_node.index);
619 if (devconf->workers)
624 clib_bitmap_foreach (i, devconf->workers, ({
625 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
626 vdm->first_worker_thread_index + i);
631 for (q = 0; q < xd->rx_q_used; q++)
633 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
637 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
639 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD)
640 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
642 dpdk_device_setup (xd);
644 if (vec_len (xd->errors))
645 clib_warning ("setup failed for device %U. Errors:\n %U",
646 format_dpdk_device_name, i,
647 format_dpdk_device_errors, xd);
649 if (devconf->hqos_enabled)
652 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
658 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
659 * specified otherwise in the startup config.
660 * For other NICs default to VLAN strip disabled, unless specified
661 * otherwis in the startup config.
663 if (xd->pmd == VNET_DPDK_PMD_ENIC)
665 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
666 vlan_strip = 1; /* remove vlan tag from VIC port by default */
668 clib_warning ("VLAN strip disabled for interface\n");
670 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
676 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
677 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
678 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
679 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
680 clib_warning ("VLAN strip enabled for interface\n");
682 clib_warning ("VLAN strip cannot be supported by interface\n");
685 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
686 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
688 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
691 if (nb_desc > dm->conf->num_mbufs)
692 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
693 dm->conf->num_mbufs, nb_desc);
699 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
701 vlib_pci_main_t *pm = &pci_main;
703 vlib_pci_device_t *d;
705 int num_whitelisted = vec_len (conf->dev_confs);
708 pool_foreach (d, pm->pci_devs, ({
709 dpdk_device_config_t * devconf = 0;
710 vec_reset_length (pci_addr);
711 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, &d->bus_address, 0);
713 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
718 uword * p = hash_get (conf->device_config_index_by_pci_addr, d->bus_address.as_u32);
723 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
727 if (d->vendor_id == 0x1af4 && d->device_id == 0x1000)
730 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
732 /* all Intel network devices */
733 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
735 /* all Intel QAT devices VFs */
736 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
737 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
740 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
743 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
746 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
752 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
753 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
758 error = vlib_pci_bind_to_uio (d, (char *) conf->uio_driver_name);
764 pool_get (conf->dev_confs, devconf);
765 hash_set (conf->device_config_index_by_pci_addr, d->bus_address.as_u32,
766 devconf - conf->dev_confs);
767 devconf->pci_addr.as_u32 = d->bus_address.as_u32;
769 devconf->is_blacklisted = 1;
770 clib_error_report (error);
777 static clib_error_t *
778 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
779 unformat_input_t * input, u8 is_default)
781 clib_error_t *error = 0;
783 dpdk_device_config_t *devconf;
784 unformat_input_t sub_input;
788 devconf = &conf->default_devconf;
792 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
796 pool_get (conf->dev_confs, devconf);
797 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
798 devconf - conf->dev_confs);
801 return clib_error_return (0,
802 "duplicate configuration for PCI address %U",
803 format_vlib_pci_addr, &pci_addr);
806 devconf->pci_addr.as_u32 = pci_addr.as_u32;
807 devconf->hqos_enabled = 0;
808 dpdk_device_config_hqos_default (&devconf->hqos);
813 unformat_skip_white_space (input);
814 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
816 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
818 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
820 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
822 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
824 else if (unformat (input, "workers %U", unformat_bitmap_list,
829 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
831 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
835 else if (unformat (input, "vlan-strip-offload off"))
836 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
837 else if (unformat (input, "vlan-strip-offload on"))
838 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
841 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
843 devconf->hqos_enabled = 1;
844 error = unformat_hqos (&sub_input, &devconf->hqos);
848 else if (unformat (input, "hqos"))
850 devconf->hqos_enabled = 1;
854 error = clib_error_return (0, "unknown input `%U'",
855 format_unformat_error, input);
863 if (devconf->workers && devconf->num_rx_queues == 0)
864 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
865 else if (devconf->workers &&
866 clib_bitmap_count_set_bits (devconf->workers) !=
867 devconf->num_rx_queues)
869 clib_error_return (0,
870 "%U: number of worker threadds must be "
871 "equal to number of rx queues", format_vlib_pci_addr,
877 static clib_error_t *
878 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
880 clib_error_t *error = 0;
881 dpdk_main_t *dm = &dpdk_main;
882 dpdk_config_main_t *conf = &dpdk_config_main;
883 vlib_thread_main_t *tm = vlib_get_thread_main ();
884 dpdk_device_config_t *devconf;
885 vlib_pci_addr_t pci_addr;
886 unformat_input_t sub_input;
889 u8 *rte_cmd = 0, *ethname = 0;
892 int num_whitelisted = 0;
898 u8 *huge_dir_path = 0;
901 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
903 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
904 log_level = RTE_LOG_NOTICE;
906 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
909 if (unformat (input, "no-hugetlb"))
911 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
915 else if (unformat (input, "enable-tcp-udp-checksum"))
916 conf->enable_tcp_udp_checksum = 1;
918 else if (unformat (input, "decimal-interface-names"))
919 conf->interface_name_format_decimal = 1;
921 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
924 else if (unformat (input, "no-multi-seg"))
925 conf->no_multi_seg = 1;
927 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
931 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
939 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
940 unformat_vlib_cli_sub_input, &sub_input))
942 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
949 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
951 error = dpdk_device_config (conf, pci_addr, 0, 0);
958 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
960 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
962 else if (unformat (input, "socket-mem %s", &socket_mem))
964 else if (unformat (input, "no-pci"))
967 tmp = format (0, "--no-pci%c", 0);
968 vec_add1 (conf->eal_init_args, tmp);
970 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
974 else if (unformat(input, #a)) \
976 tmp = format (0, "--%s%c", #a, 0); \
977 vec_add1 (conf->eal_init_args, tmp); \
979 foreach_eal_double_hyphen_predicate_arg
982 else if (unformat(input, #a " %s", &s)) \
984 if (!strncmp(#a, "huge-dir", 8)) \
986 else if (!strncmp(#a, "file-prefix", 11)) \
988 tmp = format (0, "--%s%c", #a, 0); \
989 vec_add1 (conf->eal_init_args, tmp); \
991 if (!strncmp(#a, "vdev", 4)) \
992 if (strstr((char*)s, "af_packet")) \
993 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
994 vec_add1 (conf->eal_init_args, s); \
996 foreach_eal_double_hyphen_arg
999 else if (unformat(input, #a " %s", &s)) \
1001 tmp = format (0, "-%s%c", #b, 0); \
1002 vec_add1 (conf->eal_init_args, tmp); \
1004 vec_add1 (conf->eal_init_args, s); \
1006 foreach_eal_single_hyphen_arg
1009 else if (unformat(input, #a " %s", &s)) \
1011 tmp = format (0, "-%s%c", #b, 0); \
1012 vec_add1 (conf->eal_init_args, tmp); \
1014 vec_add1 (conf->eal_init_args, s); \
1015 conf->a##_set_manually = 1; \
1017 foreach_eal_single_hyphen_mandatory_arg
1019 else if (unformat (input, "default"))
1022 else if (unformat_skip_white_space (input))
1026 error = clib_error_return (0, "unknown input `%U'",
1027 format_unformat_error, input);
1032 if (!conf->uio_driver_name)
1033 conf->uio_driver_name = format (0, "uio_pci_generic%c", 0);
1036 * Use 1G huge pages if available.
1038 if (!no_huge && !huge_dir)
1040 u32 x, *mem_by_socket = 0;
1044 umount ((char *) huge_dir_path);
1046 /* Process "socket-mem" parameter value */
1047 if (vec_len (socket_mem))
1049 unformat_input_t in;
1050 unformat_init_vector (&in, socket_mem);
1051 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1053 if (unformat (&in, "%u,", &x))
1055 else if (unformat (&in, "%u", &x))
1057 else if (unformat (&in, ","))
1062 vec_add1 (mem_by_socket, x);
1064 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1065 unformat_free (&in);
1071 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1073 vec_validate(mem_by_socket, c);
1074 mem_by_socket[c] = 64; /* default per-socket mem */
1081 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1085 vec_validate(mem_by_socket, c);
1087 e = clib_sysfs_prealloc_hugepages(c, 2 << 10, mem_by_socket[c] / 2);
1089 clib_error_report (e);
1093 if (mem_by_socket == 0)
1095 error = clib_error_return (0, "mem_by_socket NULL");
1098 _vec_len (mem_by_socket) = c + 1;
1100 /* regenerate socket_mem string */
1101 vec_foreach_index (x, mem_by_socket)
1102 socket_mem = format (socket_mem, "%s%u",
1103 socket_mem ? "," : "", mem_by_socket[x]);
1104 socket_mem = format (socket_mem, "%c", 0);
1106 vec_free (mem_by_socket);
1108 error = vlib_unix_recursive_mkdir ((char *) huge_dir_path);
1114 rv = mount ("none", (char *) huge_dir_path, "hugetlbfs", 0, NULL);
1118 error = clib_error_return (0, "mount failed %d", errno);
1122 tmp = format (0, "--huge-dir%c", 0);
1123 vec_add1 (conf->eal_init_args, tmp);
1124 tmp = format (0, "%s%c", huge_dir_path, 0);
1125 vec_add1 (conf->eal_init_args, tmp);
1128 tmp = format (0, "--file-prefix%c", 0);
1129 vec_add1 (conf->eal_init_args, tmp);
1130 tmp = format (0, "vpp%c", 0);
1131 vec_add1 (conf->eal_init_args, tmp);
1141 /* I'll bet that -c and -n must be the first and second args... */
1142 if (!conf->coremask_set_manually)
1144 vlib_thread_registration_t *tr;
1145 uword *coremask = 0;
1148 /* main thread core */
1149 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1151 for (i = 0; i < vec_len (tm->registrations); i++)
1153 tr = tm->registrations[i];
1154 coremask = clib_bitmap_or (coremask, tr->coremask);
1157 vec_insert (conf->eal_init_args, 2, 1);
1158 conf->eal_init_args[1] = (u8 *) "-c";
1159 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1160 conf->eal_init_args[2] = tmp;
1161 clib_bitmap_free (coremask);
1164 if (!conf->nchannels_set_manually)
1166 vec_insert (conf->eal_init_args, 2, 3);
1167 conf->eal_init_args[3] = (u8 *) "-n";
1168 tmp = format (0, "%d", conf->nchannels);
1169 conf->eal_init_args[4] = tmp;
1172 if (no_pci == 0 && geteuid () == 0)
1173 dpdk_bind_devices_to_uio (conf);
1176 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1177 devconf->x = conf->default_devconf.x ;
1180 pool_foreach (devconf, conf->dev_confs, ({
1182 /* default per-device config items */
1183 foreach_dpdk_device_config_item
1185 /* add DPDK EAL whitelist/blacklist entry */
1186 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1188 tmp = format (0, "-w%c", 0);
1189 vec_add1 (conf->eal_init_args, tmp);
1190 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1191 vec_add1 (conf->eal_init_args, tmp);
1193 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1195 tmp = format (0, "-b%c", 0);
1196 vec_add1 (conf->eal_init_args, tmp);
1197 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1198 vec_add1 (conf->eal_init_args, tmp);
1205 /* set master-lcore */
1206 tmp = format (0, "--master-lcore%c", 0);
1207 vec_add1 (conf->eal_init_args, tmp);
1208 tmp = format (0, "%u%c", tm->main_lcore, 0);
1209 vec_add1 (conf->eal_init_args, tmp);
1211 /* set socket-mem */
1212 tmp = format (0, "--socket-mem%c", 0);
1213 vec_add1 (conf->eal_init_args, tmp);
1214 tmp = format (0, "%s%c", socket_mem, 0);
1215 vec_add1 (conf->eal_init_args, tmp);
1217 /* NULL terminate the "argv" vector, in case of stupidity */
1218 vec_add1 (conf->eal_init_args, 0);
1219 _vec_len (conf->eal_init_args) -= 1;
1221 /* Set up DPDK eal and packet mbuf pool early. */
1223 rte_log_set_global_level (log_level);
1225 vm = vlib_get_main ();
1227 /* make copy of args as rte_eal_init tends to mess up with arg array */
1228 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1229 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1230 conf->eal_init_args[i]);
1232 clib_warning ("EAL init args: %s", conf->eal_init_args_str);
1234 rte_eal_init (vec_len (conf->eal_init_args),
1235 (char **) conf->eal_init_args);
1237 /* lazy umount hugepages */
1238 umount2 ((char *) huge_dir_path, MNT_DETACH);
1239 rmdir ((char *) huge_dir_path);
1240 vec_free (huge_dir_path);
1243 return clib_error_return (0, "rte_eal_init returned %d", ret);
1245 /* Dump the physical memory layout prior to creating the mbuf_pool */
1246 fprintf (stdout, "DPDK physical memory layout:\n");
1247 rte_dump_physmem_layout (stdout);
1249 /* set custom ring memory allocator */
1251 struct rte_mempool_ops *ops = NULL;
1253 ops = get_ops_by_name ("ring_sp_sc");
1254 ops->alloc = dpdk_ring_alloc;
1256 ops = get_ops_by_name ("ring_mp_sc");
1257 ops->alloc = dpdk_ring_alloc;
1259 ops = get_ops_by_name ("ring_sp_mc");
1260 ops->alloc = dpdk_ring_alloc;
1262 ops = get_ops_by_name ("ring_mp_mc");
1263 ops->alloc = dpdk_ring_alloc;
1266 /* main thread 1st */
1267 error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1271 for (i = 0; i < RTE_MAX_LCORE; i++)
1273 error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
1274 rte_lcore_to_socket_id (i));
1283 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1286 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1288 vnet_main_t *vnm = vnet_get_main ();
1289 struct rte_eth_link prev_link = xd->link;
1291 u8 hw_flags_chg = 0;
1293 /* only update link state for PMD interfaces */
1294 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1297 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1298 memset (&xd->link, 0, sizeof (xd->link));
1299 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1301 if (LINK_STATE_ELOGS)
1303 vlib_main_t *vm = vlib_get_main ();
1304 ELOG_TYPE_DECLARE (e) =
1307 "update-link-state: sw_if_index %d, admin_up %d,"
1308 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1317 ed = ELOG_DATA (&vm->elog_main, e);
1318 ed->sw_if_index = xd->vlib_sw_if_index;
1319 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1320 ed->old_link_state = (u8)
1321 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1322 ed->new_link_state = (u8) xd->link.link_status;
1325 if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
1326 && ((xd->link.link_status != 0) ^
1327 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1330 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1333 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1336 switch (xd->link.link_duplex)
1338 case ETH_LINK_HALF_DUPLEX:
1339 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1341 case ETH_LINK_FULL_DUPLEX:
1342 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1348 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1351 switch (xd->link.link_speed)
1353 case ETH_SPEED_NUM_10M:
1354 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1356 case ETH_SPEED_NUM_100M:
1357 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1359 case ETH_SPEED_NUM_1G:
1360 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1362 case ETH_SPEED_NUM_10G:
1363 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1365 case ETH_SPEED_NUM_40G:
1366 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1371 clib_warning ("unknown link speed %d", xd->link.link_speed);
1377 if (LINK_STATE_ELOGS)
1379 vlib_main_t *vm = vlib_get_main ();
1381 ELOG_TYPE_DECLARE (e) =
1384 "update-link-state: sw_if_index %d, new flags %d",.format_args
1392 ed = ELOG_DATA (&vm->elog_main, e);
1393 ed->sw_if_index = xd->vlib_sw_if_index;
1394 ed->flags = hw_flags;
1396 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1401 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1403 clib_error_t *error;
1404 vnet_main_t *vnm = vnet_get_main ();
1405 dpdk_main_t *dm = &dpdk_main;
1406 ethernet_main_t *em = ðernet_main;
1408 vlib_thread_main_t *tm = vlib_get_thread_main ();
1411 error = dpdk_lib_init (dm);
1414 clib_error_report (error);
1416 tm->worker_thread_release = 1;
1418 f64 now = vlib_time_now (vm);
1419 vec_foreach (xd, dm->devices)
1421 dpdk_update_link_state (xd, now);
1426 * Extra set up for bond interfaces:
1427 * 1. Setup MACs for bond interfaces and their slave links which was set
1428 * in dpdk_device_setup() but needs to be done again here to take
1430 * 2. Set up info and register slave link state change callback handling.
1431 * 3. Set up info for bond interface related CLI support.
1433 int nports = rte_eth_dev_count ();
1436 for (i = 0; i < nports; i++)
1438 xd = &dm->devices[i];
1439 ASSERT (i == xd->device_index);
1440 if (xd->pmd == VNET_DPDK_PMD_BOND)
1444 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1447 vnet_hw_interface_t *bhi;
1448 ethernet_interface_t *bei;
1451 /* Get MAC of 1st slave link */
1453 (slink[0], (struct ether_addr *) addr);
1455 /* Set MAC of bounded interface to that of 1st slave link */
1456 clib_warning ("Set MAC for bond port %d BondEthernet%d",
1458 rv = rte_eth_bond_mac_address_set
1459 (i, (struct ether_addr *) addr);
1461 clib_warning ("Set MAC addr failure rv=%d", rv);
1463 /* Populate MAC of bonded interface in VPP hw tables */
1464 bhi = vnet_get_hw_interface
1465 (vnm, dm->devices[i].hw_if_index);
1466 bei = pool_elt_at_index
1467 (em->interfaces, bhi->hw_instance);
1468 clib_memcpy (bhi->hw_address, addr, 6);
1469 clib_memcpy (bei->address, addr, 6);
1471 /* Init l3 packet size allowed on bonded interface */
1472 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1473 bhi->max_l3_packet_bytes[VLIB_RX] =
1474 bhi->max_l3_packet_bytes[VLIB_TX] =
1475 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1477 { /* for all slave links */
1478 int slave = slink[--nlink];
1479 dpdk_device_t *sdev = &dm->devices[slave];
1480 vnet_hw_interface_t *shi;
1481 vnet_sw_interface_t *ssi;
1482 ethernet_interface_t *sei;
1483 /* Add MAC to all slave links except the first one */
1486 clib_warning ("Add MAC for slave port %d", slave);
1487 rv = rte_eth_dev_mac_addr_add
1488 (slave, (struct ether_addr *) addr, 0);
1490 clib_warning ("Add MAC addr failure rv=%d", rv);
1492 /* Setup slave link state change callback handling */
1493 rte_eth_dev_callback_register
1494 (slave, RTE_ETH_EVENT_INTR_LSC,
1495 dpdk_port_state_callback, NULL);
1496 dpdk_device_t *sxd = &dm->devices[slave];
1497 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1499 /* Set slaves bitmap for bonded interface */
1500 bhi->bond_info = clib_bitmap_set
1501 (bhi->bond_info, sdev->hw_if_index, 1);
1502 /* Set MACs and slave link flags on slave interface */
1503 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1504 ssi = vnet_get_sw_interface
1505 (vnm, sdev->vlib_sw_if_index);
1506 sei = pool_elt_at_index
1507 (em->interfaces, shi->hw_instance);
1508 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1509 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1510 clib_memcpy (shi->hw_address, addr, 6);
1511 clib_memcpy (sei->address, addr, 6);
1512 /* Set l3 packet size allowed as the lowest of slave */
1513 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1514 shi->max_l3_packet_bytes[VLIB_RX])
1515 bhi->max_l3_packet_bytes[VLIB_RX] =
1516 bhi->max_l3_packet_bytes[VLIB_TX] =
1517 shi->max_l3_packet_bytes[VLIB_RX];
1518 /* Set max packet size allowed as the lowest of slave */
1519 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1520 bhi->max_packet_bytes = shi->max_packet_bytes;
1531 * check each time through the loop in case intervals are changed
1533 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1534 dm->link_state_poll_interval : dm->stat_poll_interval;
1536 vlib_process_wait_for_event_or_clock (vm, min_wait);
1538 if (dm->admin_up_down_in_progress)
1539 /* skip the poll if an admin up down is in progress (on any interface) */
1542 vec_foreach (xd, dm->devices)
1544 f64 now = vlib_time_now (vm);
1545 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1546 dpdk_update_counters (xd, now);
1547 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1548 dpdk_update_link_state (xd, now);
1557 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1558 .function = dpdk_process,
1559 .type = VLIB_NODE_TYPE_PROCESS,
1560 .name = "dpdk-process",
1561 .process_log2_n_stack_bytes = 17,
1565 static clib_error_t *
1566 dpdk_init (vlib_main_t * vm)
1568 dpdk_main_t *dm = &dpdk_main;
1570 clib_error_t *error = 0;
1571 vlib_thread_main_t *tm = vlib_get_thread_main ();
1573 /* verify that structs are cacheline aligned */
1574 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1575 "Cache line marker must be 1st element in dpdk_device_t");
1576 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1577 CLIB_CACHE_LINE_BYTES,
1578 "Data in cache line 0 is bigger than cache line size");
1579 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1580 "Cache line marker must be 1st element in frame_queue_trace_t");
1583 dm->vnet_main = vnet_get_main ();
1584 dm->conf = &dpdk_config_main;
1586 ei = vlib_get_node_by_name (vm, (u8 *) "ethernet-input");
1588 return clib_error_return (0, "ethernet-input node AWOL");
1590 dm->ethernet_input_node_index = ei->index;
1592 dm->conf->nchannels = 4;
1593 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1594 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1596 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1598 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1599 dm->buffer_flags_template =
1600 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1601 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1602 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1604 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1605 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1608 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1614 VLIB_INIT_FUNCTION (dpdk_init);
1618 * fd.io coding-style-patch-verification: ON
1621 * eval: (c-set-style "gnu")