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;
40 dpdk_config_main_t dpdk_config_main;
42 #define LINK_STATE_ELOGS 0
44 /* Port configuration, mildly modified Intel app values */
46 static struct rte_eth_conf port_conf_template = {
49 .header_split = 0, /**< Header Split disabled */
50 .hw_ip_checksum = 0, /**< IP checksum offload disabled */
51 .hw_vlan_filter = 0, /**< VLAN filtering disabled */
52 .hw_strip_crc = 0, /**< CRC stripped by hardware */
55 .mq_mode = ETH_MQ_TX_NONE,
59 static dpdk_port_type_t
60 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
63 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
64 return VNET_DPDK_PORT_TYPE_ETH_100G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
66 return VNET_DPDK_PORT_TYPE_ETH_50G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
68 return VNET_DPDK_PORT_TYPE_ETH_40G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
70 return VNET_DPDK_PORT_TYPE_ETH_25G;
71 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
72 return VNET_DPDK_PORT_TYPE_ETH_10G;
73 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
74 return VNET_DPDK_PORT_TYPE_ETH_1G;
76 return VNET_DPDK_PORT_TYPE_UNKNOWN;
81 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
83 dpdk_main_t *dm = &dpdk_main;
84 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
87 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
89 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
91 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
92 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
94 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
96 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
98 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
99 rte_eth_promiscuous_enable (xd->device_index);
101 rte_eth_promiscuous_disable (xd->device_index);
104 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
106 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
107 dpdk_device_setup (xd);
113 dpdk_device_lock_init (dpdk_device_t * xd)
116 vec_validate (xd->lockp, xd->tx_q_used - 1);
117 for (q = 0; q < xd->tx_q_used; q++)
119 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
120 CLIB_CACHE_LINE_BYTES);
121 memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
125 static struct rte_mempool_ops *
126 get_ops_by_name (i8 * ops_name)
130 for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
132 if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
133 return &rte_mempool_ops_table.ops[i];
140 dpdk_ring_alloc (struct rte_mempool *mp)
142 u32 rg_flags = 0, count;
144 i8 rg_name[RTE_RING_NAMESIZE];
147 ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
148 if (ret < 0 || ret >= (i32) sizeof (rg_name))
149 return -ENAMETOOLONG;
152 if (mp->flags & MEMPOOL_F_SP_PUT)
153 rg_flags |= RING_F_SP_ENQ;
154 if (mp->flags & MEMPOOL_F_SC_GET)
155 rg_flags |= RING_F_SC_DEQ;
157 count = rte_align32pow2 (mp->size + 1);
159 * Allocate the ring that will be used to store objects.
160 * Ring functions will return appropriate errors if we are
161 * running as a secondary process etc., so no checks made
162 * in this function for that condition.
164 /* XXX can we get memory from the right socket? */
165 r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
166 CLIB_CACHE_LINE_BYTES);
168 /* XXX rte_ring_lookup will not work */
170 ret = rte_ring_init (r, rg_name, count, rg_flags);
179 static clib_error_t *
180 dpdk_lib_init (dpdk_main_t * dm)
186 vlib_main_t *vm = vlib_get_main ();
187 vlib_thread_main_t *tm = vlib_get_thread_main ();
188 vnet_device_main_t *vdm = &vnet_device_main;
189 vnet_sw_interface_t *sw;
190 vnet_hw_interface_t *hi;
192 vlib_pci_addr_t last_pci_addr;
193 u32 last_pci_addr_port = 0;
194 vlib_thread_registration_t *tr_hqos;
197 u32 next_hqos_cpu = 0;
198 u8 af_packet_port_id = 0;
199 u8 bond_ether_port_id = 0;
200 last_pci_addr.as_u32 = ~0;
202 dm->hqos_cpu_first_index = 0;
203 dm->hqos_cpu_count = 0;
205 /* find out which cpus will be used for I/O TX */
206 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
207 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
209 if (tr_hqos && tr_hqos->count > 0)
211 dm->hqos_cpu_first_index = tr_hqos->first_index;
212 dm->hqos_cpu_count = tr_hqos->count;
215 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
216 CLIB_CACHE_LINE_BYTES);
218 nports = rte_eth_dev_count ();
221 clib_warning ("DPDK drivers found no ports...");
225 clib_warning ("DPDK drivers found %d ports...", nports);
228 * All buffers are all allocated from the same rte_mempool.
229 * Thus they all have the same number of data bytes.
231 dm->vlib_buffer_free_list_index =
232 vlib_buffer_get_or_create_free_list (vm,
233 VLIB_BUFFER_DEFAULT_FREE_LIST_BYTES,
236 if (dm->conf->enable_tcp_udp_checksum)
237 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
238 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
240 /* vlib_buffer_t template */
241 vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1,
242 CLIB_CACHE_LINE_BYTES);
243 for (i = 0; i < tm->n_vlib_mains; i++)
245 vlib_buffer_free_list_t *fl;
246 vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i);
247 fl = vlib_buffer_get_free_list (vm,
248 VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX);
249 vlib_buffer_init_for_free_list (bt, fl);
250 bt->flags = dm->buffer_flags_template;
251 vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0;
254 for (i = 0; i < nports; i++)
259 struct rte_eth_dev_info dev_info;
260 struct rte_eth_link l;
261 dpdk_device_config_t *devconf = 0;
262 vlib_pci_addr_t pci_addr;
265 rte_eth_dev_info_get (i, &dev_info);
266 if (dev_info.pci_dev) /* bonded interface has no pci info */
268 pci_addr.domain = dev_info.pci_dev->addr.domain;
269 pci_addr.bus = dev_info.pci_dev->addr.bus;
270 pci_addr.slot = dev_info.pci_dev->addr.devid;
271 pci_addr.function = dev_info.pci_dev->addr.function;
273 hash_get (dm->conf->device_config_index_by_pci_addr,
278 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
280 devconf = &dm->conf->default_devconf;
282 /* Create vnet interface */
283 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
284 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
285 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
286 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
288 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
289 if (dev_info.pci_dev)
291 struct rte_eth_dev_info di = { 0 };
292 rte_eth_dev_info_get (i + 1, &di);
293 if (di.pci_dev && pci_addr.as_u32 != last_pci_addr.as_u32 &&
294 memcmp (&dev_info.pci_dev->addr, &di.pci_dev->addr,
295 sizeof (struct rte_pci_addr)) == 0)
297 xd->interface_name_suffix = format (0, "0");
298 last_pci_addr.as_u32 = pci_addr.as_u32;
299 last_pci_addr_port = i;
301 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
303 xd->interface_name_suffix =
304 format (0, "%u", i - last_pci_addr_port);
308 last_pci_addr.as_u32 = ~0;
312 last_pci_addr.as_u32 = ~0;
314 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
315 sizeof (struct rte_eth_txconf));
317 if (dm->conf->no_multi_seg)
319 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
320 port_conf_template.rxmode.jumbo_frame = 0;
321 port_conf_template.rxmode.enable_scatter = 0;
325 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOMULTSEGS;
326 port_conf_template.rxmode.jumbo_frame = 1;
327 port_conf_template.rxmode.enable_scatter = 1;
328 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
331 clib_memcpy (&xd->port_conf, &port_conf_template,
332 sizeof (struct rte_eth_conf));
334 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
336 if (devconf->num_tx_queues > 0
337 && devconf->num_tx_queues < xd->tx_q_used)
338 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
340 if (devconf->num_rx_queues > 1
341 && dev_info.max_rx_queues >= devconf->num_rx_queues)
343 xd->rx_q_used = devconf->num_rx_queues;
344 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
345 if (devconf->rss_fn == 0)
346 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
347 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
349 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
354 xd->flags |= DPDK_DEVICE_FLAG_PMD;
356 /* workaround for drivers not setting driver_name */
357 if ((!dev_info.driver_name) && (dev_info.pci_dev))
358 dev_info.driver_name = dev_info.pci_dev->driver->driver.name;
360 ASSERT (dev_info.driver_name);
366 #define _(s,f) else if (dev_info.driver_name && \
367 !strcmp(dev_info.driver_name, s)) \
368 xd->pmd = VNET_DPDK_PMD_##f;
374 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
376 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
377 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
378 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
382 /* Drivers with valid speed_capa set */
383 case VNET_DPDK_PMD_E1000EM:
384 case VNET_DPDK_PMD_IGB:
385 case VNET_DPDK_PMD_IXGBE:
386 case VNET_DPDK_PMD_I40E:
387 xd->port_type = port_type_from_speed_capa (&dev_info);
388 if (dm->conf->no_tx_checksum_offload == 0)
390 xd->tx_conf.txq_flags &= ~ETH_TXQ_FLAGS_NOXSUMS;
392 DPDK_DEVICE_FLAG_TX_OFFLOAD |
393 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
398 case VNET_DPDK_PMD_CXGBE:
399 case VNET_DPDK_PMD_MLX4:
400 case VNET_DPDK_PMD_MLX5:
401 xd->port_type = port_type_from_speed_capa (&dev_info);
405 case VNET_DPDK_PMD_IGBVF:
406 case VNET_DPDK_PMD_IXGBEVF:
407 case VNET_DPDK_PMD_I40EVF:
408 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
409 xd->port_conf.rxmode.hw_strip_crc = 1;
412 case VNET_DPDK_PMD_THUNDERX:
413 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
414 xd->port_conf.rxmode.hw_strip_crc = 1;
417 case VNET_DPDK_PMD_ENA:
418 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
421 case VNET_DPDK_PMD_DPAA2:
422 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
426 case VNET_DPDK_PMD_ENIC:
427 rte_eth_link_get_nowait (i, &l);
428 if (l.link_speed == 40000)
429 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
431 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
434 /* Intel Red Rock Canyon */
435 case VNET_DPDK_PMD_FM10K:
436 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
437 xd->port_conf.rxmode.hw_strip_crc = 1;
441 case VNET_DPDK_PMD_VIRTIO:
442 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
443 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
444 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
448 case VNET_DPDK_PMD_VMXNET3:
449 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
450 xd->tx_conf.txq_flags |= ETH_TXQ_FLAGS_NOMULTSEGS;
453 case VNET_DPDK_PMD_AF_PACKET:
454 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
455 xd->port_id = af_packet_port_id++;
458 case VNET_DPDK_PMD_BOND:
459 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
460 xd->port_id = bond_ether_port_id++;
463 case VNET_DPDK_PMD_VIRTIO_USER:
464 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
468 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
471 if (devconf->num_rx_desc)
472 xd->nb_rx_desc = devconf->num_rx_desc;
474 if (devconf->num_tx_desc)
475 xd->nb_tx_desc = devconf->num_tx_desc;
479 * Ensure default mtu is not > the mtu read from the hardware.
480 * Otherwise rte_eth_dev_configure() will fail and the port will
483 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
486 * This device does not support the platforms's max frame
487 * size. Use it's advertised mru instead.
489 xd->port_conf.rxmode.max_rx_pkt_len = dev_info.max_rx_pktlen;
493 xd->port_conf.rxmode.max_rx_pkt_len = ETHERNET_MAX_PACKET_BYTES;
496 * Some platforms do not account for Ethernet FCS (4 bytes) in
497 * MTU calculations. To interop with them increase mru but only
498 * if the device's settings can support it.
500 if ((dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)) &&
501 xd->port_conf.rxmode.hw_strip_crc)
504 * Allow additional 4 bytes (for Ethernet FCS). These bytes are
505 * stripped by h/w and so will not consume any buffer memory.
507 xd->port_conf.rxmode.max_rx_pkt_len += 4;
511 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
513 f64 now = vlib_time_now (vm);
515 rnd = (u32) (now * 1e6);
516 rnd = random_u32 (&rnd);
517 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
522 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
524 if (xd->tx_q_used < tm->n_vlib_mains)
525 dpdk_device_lock_init (xd);
527 xd->device_index = xd - dm->devices;
528 ASSERT (i == xd->device_index);
529 xd->per_interface_next_index = ~0;
531 /* assign interface to input thread */
534 if (devconf->hqos_enabled)
536 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
539 if (devconf->hqos.hqos_thread_valid)
541 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
542 return clib_error_return (0, "invalid HQoS thread index");
544 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
548 if (dm->hqos_cpu_count == 0)
549 return clib_error_return (0, "no HQoS threads available");
551 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
554 if (next_hqos_cpu == dm->hqos_cpu_count)
557 devconf->hqos.hqos_thread_valid = 1;
558 devconf->hqos.hqos_thread = cpu;
561 dpdk_device_and_queue_t *dq;
562 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
563 dq->device = xd->device_index;
567 vec_validate_aligned (xd->tx_vectors, tm->n_vlib_mains,
568 CLIB_CACHE_LINE_BYTES);
569 for (j = 0; j < tm->n_vlib_mains; j++)
571 vec_validate_ha (xd->tx_vectors[j], xd->nb_tx_desc,
572 sizeof (tx_ring_hdr_t), CLIB_CACHE_LINE_BYTES);
573 vec_reset_length (xd->tx_vectors[j]);
576 vec_validate_aligned (xd->rx_vectors, xd->rx_q_used,
577 CLIB_CACHE_LINE_BYTES);
578 for (j = 0; j < xd->rx_q_used; j++)
580 vec_validate_aligned (xd->rx_vectors[j], VLIB_FRAME_SIZE - 1,
581 CLIB_CACHE_LINE_BYTES);
582 vec_reset_length (xd->rx_vectors[j]);
585 vec_validate_aligned (xd->d_trace_buffers, tm->n_vlib_mains,
586 CLIB_CACHE_LINE_BYTES);
589 /* count the number of descriptors used for this device */
590 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
592 error = ethernet_register_interface
593 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
594 /* ethernet address */ addr,
595 &xd->hw_if_index, dpdk_flag_change);
599 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
600 xd->vlib_sw_if_index = sw->sw_if_index;
601 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
602 dpdk_input_node.index);
604 if (devconf->workers)
609 clib_bitmap_foreach (i, devconf->workers, ({
610 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
611 vdm->first_worker_thread_index + i);
616 for (q = 0; q < xd->rx_q_used; q++)
618 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
622 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
624 if (dm->conf->no_tx_checksum_offload == 0)
625 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD)
626 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
628 dpdk_device_setup (xd);
630 if (vec_len (xd->errors))
631 clib_warning ("setup failed for device %U. Errors:\n %U",
632 format_dpdk_device_name, i,
633 format_dpdk_device_errors, xd);
635 if (devconf->hqos_enabled)
638 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
644 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
645 * specified otherwise in the startup config.
646 * For other NICs default to VLAN strip disabled, unless specified
647 * otherwis in the startup config.
649 if (xd->pmd == VNET_DPDK_PMD_ENIC)
651 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
652 vlan_strip = 1; /* remove vlan tag from VIC port by default */
654 clib_warning ("VLAN strip disabled for interface\n");
656 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
662 vlan_off = rte_eth_dev_get_vlan_offload (xd->device_index);
663 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
664 xd->port_conf.rxmode.hw_vlan_strip = vlan_off;
665 if (rte_eth_dev_set_vlan_offload (xd->device_index, vlan_off) == 0)
666 clib_warning ("VLAN strip enabled for interface\n");
668 clib_warning ("VLAN strip cannot be supported by interface\n");
671 hi->max_l3_packet_bytes[VLIB_RX] = hi->max_l3_packet_bytes[VLIB_TX] =
672 xd->port_conf.rxmode.max_rx_pkt_len - sizeof (ethernet_header_t);
674 rte_eth_dev_set_mtu (xd->device_index, hi->max_packet_bytes);
677 if (nb_desc > dm->conf->num_mbufs)
678 clib_warning ("%d mbufs allocated but total rx/tx ring size is %d\n",
679 dm->conf->num_mbufs, nb_desc);
685 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
689 int num_whitelisted = vec_len (conf->dev_confs);
690 vlib_pci_device_info_t *d = 0;
691 vlib_pci_addr_t *addr = 0, *addrs;
693 addrs = vlib_pci_get_all_dev_addrs ();
695 vec_foreach (addr, addrs)
697 dpdk_device_config_t * devconf = 0;
698 vec_reset_length (pci_addr);
699 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
702 vlib_pci_free_device_info (d);
705 d = vlib_pci_get_device_info (addr, &error);
708 clib_error_report (error);
712 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
717 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
722 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
726 if (d->vendor_id == 0x1af4 &&
727 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
728 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
731 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
733 /* all Intel network devices */
734 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
736 /* all Intel QAT devices VFs */
737 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
738 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
741 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
744 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
746 /* Amazen Elastic Network Adapter */
747 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
750 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
756 clib_warning ("Unsupported PCI device 0x%04x:0x%04x found "
757 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
762 error = vlib_pci_bind_to_uio (addr, (char *) conf->uio_driver_name);
768 pool_get (conf->dev_confs, devconf);
769 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
770 devconf - conf->dev_confs);
771 devconf->pci_addr.as_u32 = addr->as_u32;
773 devconf->is_blacklisted = 1;
774 clib_error_report (error);
779 vlib_pci_free_device_info (d);
782 static clib_error_t *
783 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
784 unformat_input_t * input, u8 is_default)
786 clib_error_t *error = 0;
788 dpdk_device_config_t *devconf;
789 unformat_input_t sub_input;
793 devconf = &conf->default_devconf;
797 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
801 pool_get (conf->dev_confs, devconf);
802 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
803 devconf - conf->dev_confs);
806 return clib_error_return (0,
807 "duplicate configuration for PCI address %U",
808 format_vlib_pci_addr, &pci_addr);
811 devconf->pci_addr.as_u32 = pci_addr.as_u32;
812 devconf->hqos_enabled = 0;
813 dpdk_device_config_hqos_default (&devconf->hqos);
818 unformat_skip_white_space (input);
819 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
821 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
823 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
825 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
827 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
829 else if (unformat (input, "workers %U", unformat_bitmap_list,
834 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
836 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
840 else if (unformat (input, "vlan-strip-offload off"))
841 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
842 else if (unformat (input, "vlan-strip-offload on"))
843 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
846 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
848 devconf->hqos_enabled = 1;
849 error = unformat_hqos (&sub_input, &devconf->hqos);
853 else if (unformat (input, "hqos"))
855 devconf->hqos_enabled = 1;
859 error = clib_error_return (0, "unknown input `%U'",
860 format_unformat_error, input);
868 if (devconf->workers && devconf->num_rx_queues == 0)
869 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
870 else if (devconf->workers &&
871 clib_bitmap_count_set_bits (devconf->workers) !=
872 devconf->num_rx_queues)
874 clib_error_return (0,
875 "%U: number of worker threadds must be "
876 "equal to number of rx queues", format_vlib_pci_addr,
882 static clib_error_t *
883 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
885 clib_error_t *error = 0;
886 dpdk_main_t *dm = &dpdk_main;
887 dpdk_config_main_t *conf = &dpdk_config_main;
888 vlib_thread_main_t *tm = vlib_get_thread_main ();
889 dpdk_device_config_t *devconf;
890 vlib_pci_addr_t pci_addr;
891 unformat_input_t sub_input;
894 u8 *rte_cmd = 0, *ethname = 0;
897 int num_whitelisted = 0;
903 u8 *huge_dir_path = 0;
906 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
908 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
909 log_level = RTE_LOG_NOTICE;
911 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
914 if (unformat (input, "no-hugetlb"))
916 vec_add1 (conf->eal_init_args, (u8 *) "no-huge");
920 else if (unformat (input, "enable-tcp-udp-checksum"))
921 conf->enable_tcp_udp_checksum = 1;
923 else if (unformat (input, "no-tx-checksum-offload"))
924 conf->no_tx_checksum_offload = 1;
926 else if (unformat (input, "decimal-interface-names"))
927 conf->interface_name_format_decimal = 1;
929 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
932 else if (unformat (input, "no-multi-seg"))
933 conf->no_multi_seg = 1;
935 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
939 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
947 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
948 unformat_vlib_cli_sub_input, &sub_input))
950 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
957 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
959 error = dpdk_device_config (conf, pci_addr, 0, 0);
966 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
968 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
970 else if (unformat (input, "socket-mem %s", &socket_mem))
972 else if (unformat (input, "no-pci"))
975 tmp = format (0, "--no-pci%c", 0);
976 vec_add1 (conf->eal_init_args, tmp);
978 else if (unformat (input, "poll-sleep %d", &dm->poll_sleep_usec))
982 else if (unformat(input, #a)) \
984 tmp = format (0, "--%s%c", #a, 0); \
985 vec_add1 (conf->eal_init_args, tmp); \
987 foreach_eal_double_hyphen_predicate_arg
990 else if (unformat(input, #a " %s", &s)) \
992 if (!strncmp(#a, "huge-dir", 8)) \
994 else if (!strncmp(#a, "file-prefix", 11)) \
996 tmp = format (0, "--%s%c", #a, 0); \
997 vec_add1 (conf->eal_init_args, tmp); \
999 if (!strncmp(#a, "vdev", 4)) \
1000 if (strstr((char*)s, "af_packet")) \
1001 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1002 vec_add1 (conf->eal_init_args, s); \
1004 foreach_eal_double_hyphen_arg
1007 else if (unformat(input, #a " %s", &s)) \
1009 tmp = format (0, "-%s%c", #b, 0); \
1010 vec_add1 (conf->eal_init_args, tmp); \
1012 vec_add1 (conf->eal_init_args, s); \
1014 foreach_eal_single_hyphen_arg
1017 else if (unformat(input, #a " %s", &s)) \
1019 tmp = format (0, "-%s%c", #b, 0); \
1020 vec_add1 (conf->eal_init_args, tmp); \
1022 vec_add1 (conf->eal_init_args, s); \
1023 conf->a##_set_manually = 1; \
1025 foreach_eal_single_hyphen_mandatory_arg
1027 else if (unformat (input, "default"))
1030 else if (unformat_skip_white_space (input))
1034 error = clib_error_return (0, "unknown input `%U'",
1035 format_unformat_error, input);
1040 if (!conf->uio_driver_name)
1041 conf->uio_driver_name = format (0, "auto%c", 0);
1044 * Use 1G huge pages if available.
1046 if (!no_huge && !huge_dir)
1048 u32 x, *mem_by_socket = 0;
1052 umount ((char *) huge_dir_path);
1054 /* Process "socket-mem" parameter value */
1055 if (vec_len (socket_mem))
1057 unformat_input_t in;
1058 unformat_init_vector (&in, socket_mem);
1059 while (unformat_check_input (&in) != UNFORMAT_END_OF_INPUT)
1061 if (unformat (&in, "%u,", &x))
1063 else if (unformat (&in, "%u", &x))
1065 else if (unformat (&in, ","))
1070 vec_add1 (mem_by_socket, x);
1072 /* Note: unformat_free vec_frees(in.buffer), aka socket_mem... */
1073 unformat_free (&in);
1079 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1081 vec_validate(mem_by_socket, c);
1082 mem_by_socket[c] = 64; /* default per-socket mem */
1089 clib_bitmap_foreach (c, tm->cpu_socket_bitmap, (
1093 vec_validate(mem_by_socket, c);
1095 e = clib_sysfs_prealloc_hugepages(c, 2 << 10, mem_by_socket[c] / 2);
1097 clib_error_report (e);
1101 if (mem_by_socket == 0)
1103 error = clib_error_return (0, "mem_by_socket NULL");
1106 _vec_len (mem_by_socket) = c + 1;
1108 /* regenerate socket_mem string */
1109 vec_foreach_index (x, mem_by_socket)
1110 socket_mem = format (socket_mem, "%s%u",
1111 socket_mem ? "," : "", mem_by_socket[x]);
1112 socket_mem = format (socket_mem, "%c", 0);
1114 vec_free (mem_by_socket);
1116 error = vlib_unix_recursive_mkdir ((char *) huge_dir_path);
1122 rv = mount ("none", (char *) huge_dir_path, "hugetlbfs", 0, NULL);
1126 error = clib_error_return (0, "mount failed %d", errno);
1130 tmp = format (0, "--huge-dir%c", 0);
1131 vec_add1 (conf->eal_init_args, tmp);
1132 tmp = format (0, "%s%c", huge_dir_path, 0);
1133 vec_add1 (conf->eal_init_args, tmp);
1136 tmp = format (0, "--file-prefix%c", 0);
1137 vec_add1 (conf->eal_init_args, tmp);
1138 tmp = format (0, "vpp%c", 0);
1139 vec_add1 (conf->eal_init_args, tmp);
1149 /* I'll bet that -c and -n must be the first and second args... */
1150 if (!conf->coremask_set_manually)
1152 vlib_thread_registration_t *tr;
1153 uword *coremask = 0;
1156 /* main thread core */
1157 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1159 for (i = 0; i < vec_len (tm->registrations); i++)
1161 tr = tm->registrations[i];
1162 coremask = clib_bitmap_or (coremask, tr->coremask);
1165 vec_insert (conf->eal_init_args, 2, 1);
1166 conf->eal_init_args[1] = (u8 *) "-c";
1167 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1168 conf->eal_init_args[2] = tmp;
1169 clib_bitmap_free (coremask);
1172 if (!conf->nchannels_set_manually)
1174 vec_insert (conf->eal_init_args, 2, 3);
1175 conf->eal_init_args[3] = (u8 *) "-n";
1176 tmp = format (0, "%d", conf->nchannels);
1177 conf->eal_init_args[4] = tmp;
1180 if (no_pci == 0 && geteuid () == 0)
1181 dpdk_bind_devices_to_uio (conf);
1184 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1185 devconf->x = conf->default_devconf.x ;
1188 pool_foreach (devconf, conf->dev_confs, ({
1190 /* default per-device config items */
1191 foreach_dpdk_device_config_item
1193 /* add DPDK EAL whitelist/blacklist entry */
1194 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1196 tmp = format (0, "-w%c", 0);
1197 vec_add1 (conf->eal_init_args, tmp);
1198 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1199 vec_add1 (conf->eal_init_args, tmp);
1201 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1203 tmp = format (0, "-b%c", 0);
1204 vec_add1 (conf->eal_init_args, tmp);
1205 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1206 vec_add1 (conf->eal_init_args, tmp);
1213 /* set master-lcore */
1214 tmp = format (0, "--master-lcore%c", 0);
1215 vec_add1 (conf->eal_init_args, tmp);
1216 tmp = format (0, "%u%c", tm->main_lcore, 0);
1217 vec_add1 (conf->eal_init_args, tmp);
1219 /* set socket-mem */
1220 tmp = format (0, "--socket-mem%c", 0);
1221 vec_add1 (conf->eal_init_args, tmp);
1222 tmp = format (0, "%s%c", socket_mem, 0);
1223 vec_add1 (conf->eal_init_args, tmp);
1225 /* NULL terminate the "argv" vector, in case of stupidity */
1226 vec_add1 (conf->eal_init_args, 0);
1227 _vec_len (conf->eal_init_args) -= 1;
1229 /* Set up DPDK eal and packet mbuf pool early. */
1231 rte_log_set_global_level (log_level);
1233 vm = vlib_get_main ();
1235 /* make copy of args as rte_eal_init tends to mess up with arg array */
1236 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1237 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1238 conf->eal_init_args[i]);
1240 clib_warning ("EAL init args: %s", conf->eal_init_args_str);
1242 rte_eal_init (vec_len (conf->eal_init_args),
1243 (char **) conf->eal_init_args);
1245 /* lazy umount hugepages */
1246 umount2 ((char *) huge_dir_path, MNT_DETACH);
1247 rmdir ((char *) huge_dir_path);
1248 vec_free (huge_dir_path);
1251 return clib_error_return (0, "rte_eal_init returned %d", ret);
1253 /* Dump the physical memory layout prior to creating the mbuf_pool */
1254 fprintf (stdout, "DPDK physical memory layout:\n");
1255 rte_dump_physmem_layout (stdout);
1257 /* set custom ring memory allocator */
1259 struct rte_mempool_ops *ops = NULL;
1261 ops = get_ops_by_name ("ring_sp_sc");
1262 ops->alloc = dpdk_ring_alloc;
1264 ops = get_ops_by_name ("ring_mp_sc");
1265 ops->alloc = dpdk_ring_alloc;
1267 ops = get_ops_by_name ("ring_sp_mc");
1268 ops->alloc = dpdk_ring_alloc;
1270 ops = get_ops_by_name ("ring_mp_mc");
1271 ops->alloc = dpdk_ring_alloc;
1274 /* main thread 1st */
1275 error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1279 for (i = 0; i < RTE_MAX_LCORE; i++)
1281 error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
1282 rte_lcore_to_socket_id (i));
1291 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1294 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1296 vnet_main_t *vnm = vnet_get_main ();
1297 struct rte_eth_link prev_link = xd->link;
1299 u8 hw_flags_chg = 0;
1301 /* only update link state for PMD interfaces */
1302 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1305 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1306 memset (&xd->link, 0, sizeof (xd->link));
1307 rte_eth_link_get_nowait (xd->device_index, &xd->link);
1309 if (LINK_STATE_ELOGS)
1311 vlib_main_t *vm = vlib_get_main ();
1312 ELOG_TYPE_DECLARE (e) =
1315 "update-link-state: sw_if_index %d, admin_up %d,"
1316 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1325 ed = ELOG_DATA (&vm->elog_main, e);
1326 ed->sw_if_index = xd->vlib_sw_if_index;
1327 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1328 ed->old_link_state = (u8)
1329 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1330 ed->new_link_state = (u8) xd->link.link_status;
1333 if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
1334 && ((xd->link.link_status != 0) ^
1335 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1338 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1341 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1344 switch (xd->link.link_duplex)
1346 case ETH_LINK_HALF_DUPLEX:
1347 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1349 case ETH_LINK_FULL_DUPLEX:
1350 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1356 if (hw_flags_chg || (xd->link.link_speed != prev_link.link_speed))
1359 switch (xd->link.link_speed)
1361 case ETH_SPEED_NUM_10M:
1362 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10M;
1364 case ETH_SPEED_NUM_100M:
1365 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_100M;
1367 case ETH_SPEED_NUM_1G:
1368 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_1G;
1370 case ETH_SPEED_NUM_10G:
1371 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_10G;
1373 case ETH_SPEED_NUM_40G:
1374 hw_flags |= VNET_HW_INTERFACE_FLAG_SPEED_40G;
1379 clib_warning ("unknown link speed %d", xd->link.link_speed);
1385 if (LINK_STATE_ELOGS)
1387 vlib_main_t *vm = vlib_get_main ();
1389 ELOG_TYPE_DECLARE (e) =
1392 "update-link-state: sw_if_index %d, new flags %d",.format_args
1400 ed = ELOG_DATA (&vm->elog_main, e);
1401 ed->sw_if_index = xd->vlib_sw_if_index;
1402 ed->flags = hw_flags;
1404 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1409 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1411 clib_error_t *error;
1412 vnet_main_t *vnm = vnet_get_main ();
1413 dpdk_main_t *dm = &dpdk_main;
1414 ethernet_main_t *em = ðernet_main;
1416 vlib_thread_main_t *tm = vlib_get_thread_main ();
1419 error = dpdk_lib_init (dm);
1422 clib_error_report (error);
1424 tm->worker_thread_release = 1;
1426 f64 now = vlib_time_now (vm);
1427 vec_foreach (xd, dm->devices)
1429 dpdk_update_link_state (xd, now);
1434 * Extra set up for bond interfaces:
1435 * 1. Setup MACs for bond interfaces and their slave links which was set
1436 * in dpdk_device_setup() but needs to be done again here to take
1438 * 2. Set up info and register slave link state change callback handling.
1439 * 3. Set up info for bond interface related CLI support.
1441 int nports = rte_eth_dev_count ();
1444 for (i = 0; i < nports; i++)
1446 xd = &dm->devices[i];
1447 ASSERT (i == xd->device_index);
1448 if (xd->pmd == VNET_DPDK_PMD_BOND)
1451 dpdk_portid_t slink[16];
1452 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1455 vnet_hw_interface_t *bhi;
1456 ethernet_interface_t *bei;
1459 /* Get MAC of 1st slave link */
1461 (slink[0], (struct ether_addr *) addr);
1463 /* Set MAC of bounded interface to that of 1st slave link */
1464 clib_warning ("Set MAC for bond port %d BondEthernet%d",
1466 rv = rte_eth_bond_mac_address_set
1467 (i, (struct ether_addr *) addr);
1469 clib_warning ("Set MAC addr failure rv=%d", rv);
1471 /* Populate MAC of bonded interface in VPP hw tables */
1472 bhi = vnet_get_hw_interface
1473 (vnm, dm->devices[i].hw_if_index);
1474 bei = pool_elt_at_index
1475 (em->interfaces, bhi->hw_instance);
1476 clib_memcpy (bhi->hw_address, addr, 6);
1477 clib_memcpy (bei->address, addr, 6);
1479 /* Init l3 packet size allowed on bonded interface */
1480 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1481 bhi->max_l3_packet_bytes[VLIB_RX] =
1482 bhi->max_l3_packet_bytes[VLIB_TX] =
1483 ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
1485 { /* for all slave links */
1486 int slave = slink[--nlink];
1487 dpdk_device_t *sdev = &dm->devices[slave];
1488 vnet_hw_interface_t *shi;
1489 vnet_sw_interface_t *ssi;
1490 ethernet_interface_t *sei;
1491 /* Add MAC to all slave links except the first one */
1494 clib_warning ("Add MAC for slave port %d", slave);
1495 rv = rte_eth_dev_mac_addr_add
1496 (slave, (struct ether_addr *) addr, 0);
1498 clib_warning ("Add MAC addr failure rv=%d", rv);
1500 /* Setup slave link state change callback handling */
1501 rte_eth_dev_callback_register
1502 (slave, RTE_ETH_EVENT_INTR_LSC,
1503 dpdk_port_state_callback, NULL);
1504 dpdk_device_t *sxd = &dm->devices[slave];
1505 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1507 /* Set slaves bitmap for bonded interface */
1508 bhi->bond_info = clib_bitmap_set
1509 (bhi->bond_info, sdev->hw_if_index, 1);
1510 /* Set MACs and slave link flags on slave interface */
1511 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1512 ssi = vnet_get_sw_interface
1513 (vnm, sdev->vlib_sw_if_index);
1514 sei = pool_elt_at_index
1515 (em->interfaces, shi->hw_instance);
1516 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1517 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1518 clib_memcpy (shi->hw_address, addr, 6);
1519 clib_memcpy (sei->address, addr, 6);
1520 /* Set l3 packet size allowed as the lowest of slave */
1521 if (bhi->max_l3_packet_bytes[VLIB_RX] >
1522 shi->max_l3_packet_bytes[VLIB_RX])
1523 bhi->max_l3_packet_bytes[VLIB_RX] =
1524 bhi->max_l3_packet_bytes[VLIB_TX] =
1525 shi->max_l3_packet_bytes[VLIB_RX];
1526 /* Set max packet size allowed as the lowest of slave */
1527 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1528 bhi->max_packet_bytes = shi->max_packet_bytes;
1539 * check each time through the loop in case intervals are changed
1541 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1542 dm->link_state_poll_interval : dm->stat_poll_interval;
1544 vlib_process_wait_for_event_or_clock (vm, min_wait);
1546 if (dm->admin_up_down_in_progress)
1547 /* skip the poll if an admin up down is in progress (on any interface) */
1550 vec_foreach (xd, dm->devices)
1552 f64 now = vlib_time_now (vm);
1553 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1554 dpdk_update_counters (xd, now);
1555 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1556 dpdk_update_link_state (xd, now);
1565 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1566 .function = dpdk_process,
1567 .type = VLIB_NODE_TYPE_PROCESS,
1568 .name = "dpdk-process",
1569 .process_log2_n_stack_bytes = 17,
1573 static clib_error_t *
1574 dpdk_init (vlib_main_t * vm)
1576 dpdk_main_t *dm = &dpdk_main;
1577 clib_error_t *error = 0;
1578 vlib_thread_main_t *tm = vlib_get_thread_main ();
1580 /* verify that structs are cacheline aligned */
1581 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1582 "Cache line marker must be 1st element in dpdk_device_t");
1583 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1584 CLIB_CACHE_LINE_BYTES,
1585 "Data in cache line 0 is bigger than cache line size");
1586 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1587 "Cache line marker must be 1st element in frame_queue_trace_t");
1590 dm->vnet_main = vnet_get_main ();
1591 dm->conf = &dpdk_config_main;
1593 dm->conf->nchannels = 4;
1594 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1595 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1597 vec_validate (dm->recycle, tm->n_thread_stacks - 1);
1599 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1600 dm->buffer_flags_template =
1601 (VLIB_BUFFER_TOTAL_LENGTH_VALID | VLIB_BUFFER_EXT_HDR_VALID
1602 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1603 VNET_BUFFER_F_L4_CHECKSUM_CORRECT | VNET_BUFFER_F_L2_HDR_OFFSET_VALID);
1605 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1606 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1609 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1615 VLIB_INIT_FUNCTION (dpdk_init);
1619 * fd.io coding-style-patch-verification: ON
1622 * eval: (c-set-style "gnu")