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>
24 #include <vnet/ethernet/ethernet.h>
25 #include <dpdk/device/dpdk.h>
26 #include <vlib/pci/pci.h>
27 #include <vlib/vmbus/vmbus.h>
35 #include <sys/mount.h>
39 #include <dpdk/device/dpdk_priv.h>
41 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
43 dpdk_main_t dpdk_main;
44 dpdk_config_main_t dpdk_config_main;
46 #define LINK_STATE_ELOGS 0
48 /* Port configuration, mildly modified Intel app values */
50 static dpdk_port_type_t
51 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
54 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
55 return VNET_DPDK_PORT_TYPE_ETH_100G;
56 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
57 return VNET_DPDK_PORT_TYPE_ETH_56G;
58 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
59 return VNET_DPDK_PORT_TYPE_ETH_50G;
60 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
61 return VNET_DPDK_PORT_TYPE_ETH_40G;
62 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
63 return VNET_DPDK_PORT_TYPE_ETH_25G;
64 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
65 return VNET_DPDK_PORT_TYPE_ETH_20G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
67 return VNET_DPDK_PORT_TYPE_ETH_10G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
69 return VNET_DPDK_PORT_TYPE_ETH_5G;
70 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
71 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
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;
78 static dpdk_port_type_t
79 port_type_from_link_speed (u32 link_speed)
83 case ETH_SPEED_NUM_1G:
84 return VNET_DPDK_PORT_TYPE_ETH_1G;
85 case ETH_SPEED_NUM_2_5G:
86 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
87 case ETH_SPEED_NUM_5G:
88 return VNET_DPDK_PORT_TYPE_ETH_5G;
89 case ETH_SPEED_NUM_10G:
90 return VNET_DPDK_PORT_TYPE_ETH_10G;
91 case ETH_SPEED_NUM_20G:
92 return VNET_DPDK_PORT_TYPE_ETH_20G;
93 case ETH_SPEED_NUM_25G:
94 return VNET_DPDK_PORT_TYPE_ETH_25G;
95 case ETH_SPEED_NUM_40G:
96 return VNET_DPDK_PORT_TYPE_ETH_40G;
97 case ETH_SPEED_NUM_50G:
98 return VNET_DPDK_PORT_TYPE_ETH_50G;
99 case ETH_SPEED_NUM_56G:
100 return VNET_DPDK_PORT_TYPE_ETH_56G;
101 case ETH_SPEED_NUM_100G:
102 return VNET_DPDK_PORT_TYPE_ETH_100G;
104 return VNET_DPDK_PORT_TYPE_UNKNOWN;
109 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
111 dpdk_main_t *dm = &dpdk_main;
112 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
115 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
117 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
119 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
120 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
122 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
124 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
126 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
127 rte_eth_promiscuous_enable (xd->port_id);
129 rte_eth_promiscuous_disable (xd->port_id);
132 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
134 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
135 dpdk_device_setup (xd);
141 dpdk_device_lock_init (dpdk_device_t * xd)
144 vec_validate (xd->lockp, xd->tx_q_used - 1);
145 for (q = 0; q < xd->tx_q_used; q++)
147 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
148 CLIB_CACHE_LINE_BYTES);
149 clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
153 static struct rte_mempool_ops *
154 get_ops_by_name (char *ops_name)
158 for (i = 0; i < rte_mempool_ops_table.num_ops; i++)
160 if (!strcmp (ops_name, rte_mempool_ops_table.ops[i].name))
161 return &rte_mempool_ops_table.ops[i];
168 dpdk_ring_alloc (struct rte_mempool *mp)
170 u32 rg_flags = 0, count;
172 char rg_name[RTE_RING_NAMESIZE];
175 ret = snprintf (rg_name, sizeof (rg_name), RTE_MEMPOOL_MZ_FORMAT, mp->name);
176 if (ret < 0 || ret >= (i32) sizeof (rg_name))
177 return -ENAMETOOLONG;
180 if (mp->flags & MEMPOOL_F_SP_PUT)
181 rg_flags |= RING_F_SP_ENQ;
182 if (mp->flags & MEMPOOL_F_SC_GET)
183 rg_flags |= RING_F_SC_DEQ;
185 count = rte_align32pow2 (mp->size + 1);
187 * Allocate the ring that will be used to store objects.
188 * Ring functions will return appropriate errors if we are
189 * running as a secondary process etc., so no checks made
190 * in this function for that condition.
192 /* XXX can we get memory from the right socket? */
193 r = clib_mem_alloc_aligned (rte_ring_get_memsize (count),
194 CLIB_CACHE_LINE_BYTES);
196 /* XXX rte_ring_lookup will not work */
198 ret = rte_ring_init (r, rg_name, count, rg_flags);
208 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
210 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
211 return ! !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_CRC_STRIP);
213 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
217 static clib_error_t *
218 dpdk_lib_init (dpdk_main_t * dm)
221 u32 mtu, max_rx_frame;
225 vlib_main_t *vm = vlib_get_main ();
226 vlib_thread_main_t *tm = vlib_get_thread_main ();
227 vnet_device_main_t *vdm = &vnet_device_main;
228 vnet_sw_interface_t *sw;
229 vnet_hw_interface_t *hi;
231 vlib_pci_addr_t last_pci_addr;
232 u32 last_pci_addr_port = 0;
233 vlib_thread_registration_t *tr_hqos;
236 u32 next_hqos_cpu = 0;
237 u8 af_packet_instance_num = 0;
238 u8 bond_ether_instance_num = 0;
239 last_pci_addr.as_u32 = ~0;
241 dm->hqos_cpu_first_index = 0;
242 dm->hqos_cpu_count = 0;
244 /* find out which cpus will be used for I/O TX */
245 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
246 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
248 if (tr_hqos && tr_hqos->count > 0)
250 dm->hqos_cpu_first_index = tr_hqos->first_index;
251 dm->hqos_cpu_count = tr_hqos->count;
254 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
255 CLIB_CACHE_LINE_BYTES);
257 nports = rte_eth_dev_count_avail ();
261 dpdk_log_notice ("DPDK drivers found no ports...");
265 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
267 if (dm->conf->enable_tcp_udp_checksum)
268 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
269 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
271 /* vlib_buffer_t template */
272 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
273 CLIB_CACHE_LINE_BYTES);
274 for (i = 0; i < tm->n_vlib_mains; i++)
276 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
277 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
278 ptd->buffer_template.flags = dm->buffer_flags_template;
279 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
283 RTE_ETH_FOREACH_DEV(i)
287 struct rte_eth_dev_info dev_info;
288 struct rte_pci_device *pci_dev;
289 struct rte_eth_link l;
290 dpdk_device_config_t *devconf = 0;
291 vlib_pci_addr_t pci_addr;
294 if (!rte_eth_dev_is_valid_port(i))
297 rte_eth_link_get_nowait (i, &l);
298 rte_eth_dev_info_get (i, &dev_info);
300 if (dev_info.device == 0)
302 clib_warning ("DPDK bug: missing device info. Skipping %s device",
303 dev_info.driver_name);
307 pci_dev = dpdk_get_pci_device (&dev_info);
309 if (pci_dev) /* bonded interface has no pci info */
311 pci_addr.domain = pci_dev->addr.domain;
312 pci_addr.bus = pci_dev->addr.bus;
313 pci_addr.slot = pci_dev->addr.devid;
314 pci_addr.function = pci_dev->addr.function;
315 p = hash_get (dm->conf->device_config_index_by_pci_addr,
320 /* Create vnet interface */
321 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
322 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
323 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
324 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
328 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
329 xd->name = devconf->name;
332 devconf = &dm->conf->default_devconf;
334 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
337 struct rte_eth_dev_info di = { 0 };
338 struct rte_pci_device *next_pci_dev;
339 rte_eth_dev_info_get (i + 1, &di);
340 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
341 if (pci_dev && next_pci_dev &&
342 pci_addr.as_u32 != last_pci_addr.as_u32 &&
343 memcmp (&pci_dev->addr, &next_pci_dev->addr,
344 sizeof (struct rte_pci_addr)) == 0)
346 xd->interface_name_suffix = format (0, "0");
347 last_pci_addr.as_u32 = pci_addr.as_u32;
348 last_pci_addr_port = i;
350 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
352 xd->interface_name_suffix =
353 format (0, "%u", i - last_pci_addr_port);
357 last_pci_addr.as_u32 = ~0;
361 last_pci_addr.as_u32 = ~0;
363 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
364 sizeof (struct rte_eth_txconf));
366 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
368 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
369 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
372 if (dm->conf->no_multi_seg)
374 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
375 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
376 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
380 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
381 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
382 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
383 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
386 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
388 if (devconf->num_tx_queues > 0
389 && devconf->num_tx_queues < xd->tx_q_used)
390 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
392 if (devconf->num_rx_queues > 1
393 && dev_info.max_rx_queues >= devconf->num_rx_queues)
395 xd->rx_q_used = devconf->num_rx_queues;
396 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
397 if (devconf->rss_fn == 0)
398 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
399 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
402 u64 unsupported_bits;
403 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
404 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
405 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
406 if (unsupported_bits)
407 dpdk_log_warn ("Unsupported RSS hash functions: %U",
408 format_dpdk_rss_hf_name, unsupported_bits);
410 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
411 dev_info.flow_type_rss_offloads;
416 xd->flags |= DPDK_DEVICE_FLAG_PMD;
418 /* workaround for drivers not setting driver_name */
419 if ((!dev_info.driver_name) && (pci_dev))
420 dev_info.driver_name = pci_dev->driver->driver.name;
422 ASSERT (dev_info.driver_name);
428 #define _(s,f) else if (dev_info.driver_name && \
429 !strcmp(dev_info.driver_name, s)) \
430 xd->pmd = VNET_DPDK_PMD_##f;
436 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
438 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
439 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
440 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
444 /* Drivers with valid speed_capa set */
445 case VNET_DPDK_PMD_E1000EM:
446 case VNET_DPDK_PMD_IGB:
447 case VNET_DPDK_PMD_IXGBE:
448 case VNET_DPDK_PMD_I40E:
449 xd->port_type = port_type_from_speed_capa (&dev_info);
450 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
451 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
452 VNET_FLOW_ACTION_BUFFER_ADVANCE |
453 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
455 if (dm->conf->no_tx_checksum_offload == 0)
457 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
458 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
460 DPDK_DEVICE_FLAG_TX_OFFLOAD |
461 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
466 case VNET_DPDK_PMD_CXGBE:
467 case VNET_DPDK_PMD_MLX4:
468 case VNET_DPDK_PMD_MLX5:
469 case VNET_DPDK_PMD_QEDE:
470 xd->port_type = port_type_from_speed_capa (&dev_info);
474 case VNET_DPDK_PMD_IGBVF:
475 case VNET_DPDK_PMD_IXGBEVF:
476 case VNET_DPDK_PMD_I40EVF:
477 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
478 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
479 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
483 case VNET_DPDK_PMD_THUNDERX:
484 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
485 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
486 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
489 if (dm->conf->no_tx_checksum_offload == 0)
491 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
492 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
493 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
497 case VNET_DPDK_PMD_ENA:
498 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
499 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
502 case VNET_DPDK_PMD_DPAA2:
503 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
507 case VNET_DPDK_PMD_ENIC:
508 if (l.link_speed == 40000)
509 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_40G;
511 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
514 /* Intel Red Rock Canyon */
515 case VNET_DPDK_PMD_FM10K:
516 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
517 #if RTE_VERSION < RTE_VERSION_NUM(18, 11, 0, 0)
518 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CRC_STRIP;
523 case VNET_DPDK_PMD_VIRTIO:
524 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
525 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
526 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
530 case VNET_DPDK_PMD_VMXNET3:
531 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
532 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
535 case VNET_DPDK_PMD_AF_PACKET:
536 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
537 xd->af_packet_instance_num = af_packet_instance_num++;
540 case VNET_DPDK_PMD_BOND:
541 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_BOND;
542 xd->bond_instance_num = bond_ether_instance_num++;
545 case VNET_DPDK_PMD_VIRTIO_USER:
546 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
549 case VNET_DPDK_PMD_VHOST_ETHER:
550 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
553 case VNET_DPDK_PMD_LIOVF_ETHER:
554 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
557 case VNET_DPDK_PMD_FAILSAFE:
558 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
559 xd->port_conf.intr_conf.lsc = 1;
562 case VNET_DPDK_PMD_NETVSC:
563 xd->port_type = port_type_from_link_speed (l.link_speed);
567 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
570 if (devconf->num_rx_desc)
571 xd->nb_rx_desc = devconf->num_rx_desc;
573 if (devconf->num_tx_desc)
574 xd->nb_tx_desc = devconf->num_tx_desc;
577 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
579 f64 now = vlib_time_now (vm);
581 rnd = (u32) (now * 1e6);
582 rnd = random_u32 (&rnd);
583 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
588 rte_eth_macaddr_get (i, (struct ether_addr *) addr);
590 if (xd->tx_q_used < tm->n_vlib_mains)
591 dpdk_device_lock_init (xd);
594 xd->device_index = xd - dm->devices;
595 xd->per_interface_next_index = ~0;
597 /* assign interface to input thread */
600 if (devconf->hqos_enabled)
602 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
605 if (devconf->hqos.hqos_thread_valid)
607 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
608 return clib_error_return (0, "invalid HQoS thread index");
610 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
614 if (dm->hqos_cpu_count == 0)
615 return clib_error_return (0, "no HQoS threads available");
617 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
620 if (next_hqos_cpu == dm->hqos_cpu_count)
623 devconf->hqos.hqos_thread_valid = 1;
624 devconf->hqos.hqos_thread = cpu;
627 dpdk_device_and_queue_t *dq;
628 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
629 dq->device = xd->device_index;
633 /* count the number of descriptors used for this device */
634 nb_desc += xd->nb_rx_desc + xd->nb_tx_desc * xd->tx_q_used;
636 error = ethernet_register_interface
637 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
638 /* ethernet address */ addr,
639 &xd->hw_if_index, dpdk_flag_change);
644 * Ensure default mtu is not > the mtu read from the hardware.
645 * Otherwise rte_eth_dev_configure() will fail and the port will
647 * Calculate max_frame_size and mtu supported by NIC
649 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
652 * This device does not support the platforms's max frame
653 * size. Use it's advertised mru instead.
655 max_rx_frame = dev_info.max_rx_pktlen;
656 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
660 /* VPP treats MTU and max_rx_pktlen both equal to
661 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
662 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
664 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
665 sizeof (ethernet_header_t)))
667 mtu = ETHERNET_MAX_PACKET_BYTES;
668 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
671 * Some platforms do not account for Ethernet FCS (4 bytes) in
672 * MTU calculations. To interop with them increase mru but only
673 * if the device's settings can support it.
675 if (dpdk_port_crc_strip_enabled (xd) &&
676 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
677 sizeof (ethernet_header_t) +
685 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
686 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
688 if (dpdk_port_crc_strip_enabled (xd) &&
689 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
696 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
698 /* failsafe device numerables are reported with active device only,
699 * need to query the mtu for current device setup to overwrite
703 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
706 max_rx_frame = mtu + sizeof (ethernet_header_t);
708 if (dpdk_port_crc_strip_enabled (xd))
715 /*Set port rxmode config */
716 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
718 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
719 xd->sw_if_index = sw->sw_if_index;
720 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
721 dpdk_input_node.index);
723 if (devconf->workers)
727 clib_bitmap_foreach (i, devconf->workers, ({
728 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
729 vdm->first_worker_thread_index + i);
733 for (q = 0; q < xd->rx_q_used; q++)
735 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
739 /*Get vnet hardware interface */
740 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
742 /*Override default max_packet_bytes and max_supported_bytes set in
743 * ethernet_register_interface() above*/
746 hi->max_packet_bytes = mtu;
747 hi->max_supported_packet_bytes = max_rx_frame;
750 if (dm->conf->no_tx_checksum_offload == 0)
751 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
752 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
754 dpdk_device_setup (xd);
756 if (vec_len (xd->errors))
757 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
758 format_dpdk_device_name, i,
759 format_dpdk_device_errors, xd);
761 if (devconf->hqos_enabled)
764 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
770 * For cisco VIC vNIC, set default to VLAN strip enabled, unless
771 * specified otherwise in the startup config.
772 * For other NICs default to VLAN strip disabled, unless specified
773 * otherwise in the startup config.
775 if (xd->pmd == VNET_DPDK_PMD_ENIC)
777 if (devconf->vlan_strip_offload != DPDK_DEVICE_VLAN_STRIP_OFF)
778 vlan_strip = 1; /* remove vlan tag from VIC port by default */
780 dpdk_log_warn ("VLAN strip disabled for interface\n");
782 else if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
788 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
789 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
791 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
793 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
794 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) == 0)
795 dpdk_log_info ("VLAN strip enabled for interface\n");
797 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
801 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
802 - sizeof (ethernet_header_t);
804 clib_warning ("hi NULL");
806 if (dm->conf->no_multi_seg)
807 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
809 rte_eth_dev_set_mtu (xd->port_id, mtu);
813 if (nb_desc > dm->conf->num_mbufs)
814 dpdk_log_err ("%d mbufs allocated but total rx/tx ring size is %d\n",
815 dm->conf->num_mbufs, nb_desc);
821 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
823 vlib_main_t *vm = vlib_get_main ();
826 int num_whitelisted = vec_len (conf->dev_confs);
827 vlib_pci_device_info_t *d = 0;
828 vlib_pci_addr_t *addr = 0, *addrs;
831 addrs = vlib_pci_get_all_dev_addrs ();
833 vec_foreach (addr, addrs)
835 dpdk_device_config_t * devconf = 0;
836 vec_reset_length (pci_addr);
837 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
840 vlib_pci_free_device_info (d);
843 d = vlib_pci_get_device_info (vm, addr, &error);
846 clib_error_report (error);
850 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
855 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
863 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
866 /* Enforce Device blacklist by vendor and device */
867 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
870 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
871 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
872 if (d->vendor_id == vendor && d->device_id == device)
875 * Expected case: device isn't whitelisted,
880 /* Device is blacklisted */
881 pool_get (conf->dev_confs, devconf);
882 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
883 devconf - conf->dev_confs);
884 devconf->pci_addr.as_u32 = addr->as_u32;
885 devconf->is_blacklisted = 1;
888 else /* explicitly whitelisted, ignore the device blacklist */
894 if (d->vendor_id == 0x1af4 &&
895 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
896 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
899 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
902 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
903 * the default is to put it in the blacklist.
907 pool_get (conf->dev_confs, devconf);
908 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
909 devconf - conf->dev_confs);
910 devconf->pci_addr.as_u32 = addr->as_u32;
911 devconf->is_blacklisted = 1;
914 /* all Intel network devices */
915 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
917 /* all Intel QAT devices VFs */
918 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
919 (d->device_id == 0x0443 || d->device_id == 0x37c9 || d->device_id == 0x19e3))
922 else if (d->vendor_id == 0x1137 && d->device_id == 0x0043)
925 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
927 /* Amazen Elastic Network Adapter */
928 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
930 /* Cavium Network Adapter */
931 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
933 /* Cavium FastlinQ QL41000 Series */
934 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
937 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
942 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
948 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
949 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
954 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
960 pool_get (conf->dev_confs, devconf);
961 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
962 devconf - conf->dev_confs);
963 devconf->pci_addr.as_u32 = addr->as_u32;
965 devconf->is_blacklisted = 1;
966 clib_error_report (error);
971 vlib_pci_free_device_info (d);
975 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
978 vlib_vmbus_addr_t *addrs, *addr = 0;
980 addrs = vlib_vmbus_get_all_dev_addrs ();
983 vec_foreach (addr, addrs)
985 error = vlib_vmbus_bind_to_uio (addr);
989 clib_error_report (error);
995 static clib_error_t *
996 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
997 unformat_input_t * input, u8 is_default)
999 clib_error_t *error = 0;
1001 dpdk_device_config_t *devconf;
1002 unformat_input_t sub_input;
1006 devconf = &conf->default_devconf;
1010 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1014 pool_get (conf->dev_confs, devconf);
1015 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1016 devconf - conf->dev_confs);
1019 return clib_error_return (0,
1020 "duplicate configuration for PCI address %U",
1021 format_vlib_pci_addr, &pci_addr);
1024 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1025 devconf->hqos_enabled = 0;
1026 dpdk_device_config_hqos_default (&devconf->hqos);
1031 unformat_skip_white_space (input);
1032 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1034 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1036 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1038 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1040 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1042 else if (unformat (input, "name %s", &devconf->name))
1044 else if (unformat (input, "workers %U", unformat_bitmap_list,
1049 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1051 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1055 else if (unformat (input, "vlan-strip-offload off"))
1056 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1057 else if (unformat (input, "vlan-strip-offload on"))
1058 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1061 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
1063 devconf->hqos_enabled = 1;
1064 error = unformat_hqos (&sub_input, &devconf->hqos);
1068 else if (unformat (input, "hqos"))
1070 devconf->hqos_enabled = 1;
1074 error = clib_error_return (0, "unknown input `%U'",
1075 format_unformat_error, input);
1083 if (devconf->workers && devconf->num_rx_queues == 0)
1084 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1085 else if (devconf->workers &&
1086 clib_bitmap_count_set_bits (devconf->workers) !=
1087 devconf->num_rx_queues)
1089 clib_error_return (0,
1090 "%U: number of worker threads must be "
1091 "equal to number of rx queues", format_vlib_pci_addr,
1097 static clib_error_t *
1098 dpdk_log_read_ready (clib_file_t * uf)
1100 unformat_input_t input;
1107 uword len = vec_len (s);
1108 vec_resize (s, len + n_try);
1110 n = read (uf->file_descriptor, s + len, n_try);
1111 if (n < 0 && errno != EAGAIN)
1112 return clib_error_return_unix (0, "read");
1113 _vec_len (s) = len + (n < 0 ? 0 : n);
1116 unformat_init_vector (&input, s);
1118 while (unformat_user (&input, unformat_line, &line))
1120 dpdk_log_notice ("%v", line);
1124 unformat_free (&input);
1128 static clib_error_t *
1129 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1131 clib_error_t *error = 0;
1132 dpdk_config_main_t *conf = &dpdk_config_main;
1133 vlib_thread_main_t *tm = vlib_get_thread_main ();
1134 dpdk_device_config_t *devconf;
1135 vlib_pci_addr_t pci_addr;
1136 unformat_input_t sub_input;
1137 uword default_hugepage_sz, x;
1141 int num_whitelisted = 0;
1146 u8 *huge_dir_path = 0;
1150 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1152 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1153 log_level = RTE_LOG_NOTICE;
1155 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1157 /* Prime the pump */
1158 if (unformat (input, "no-hugetlb"))
1160 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1163 else if (unformat (input, "enable-tcp-udp-checksum"))
1164 conf->enable_tcp_udp_checksum = 1;
1166 else if (unformat (input, "no-tx-checksum-offload"))
1167 conf->no_tx_checksum_offload = 1;
1169 else if (unformat (input, "decimal-interface-names"))
1170 conf->interface_name_format_decimal = 1;
1172 else if (unformat (input, "log-level %U", unformat_dpdk_log_level, &x))
1175 else if (unformat (input, "no-multi-seg"))
1176 conf->no_multi_seg = 1;
1178 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1182 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1190 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1191 unformat_vlib_cli_sub_input, &sub_input))
1193 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1200 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1202 error = dpdk_device_config (conf, pci_addr, 0, 0);
1209 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1210 conf->nchannels_set_manually = 0;
1211 else if (unformat (input, "num-mbufs %d", &conf->num_mbufs))
1213 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1215 else if (unformat (input, "socket-mem %s", &socket_mem))
1217 else if (unformat (input, "no-pci"))
1220 tmp = format (0, "--no-pci%c", 0);
1221 vec_add1 (conf->eal_init_args, tmp);
1223 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1225 u32 blacklist_entry;
1226 if (vendor > 0xFFFF)
1227 return clib_error_return (0, "blacklist PCI vendor out of range");
1228 if (device > 0xFFFF)
1229 return clib_error_return (0, "blacklist PCI device out of range");
1230 blacklist_entry = (vendor << 16) | (device & 0xffff);
1231 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1234 else if (unformat (input, "no-vmbus"))
1237 tmp = format (0, "--no-vmbus%c", 0);
1238 vec_add1 (conf->eal_init_args, tmp);
1242 else if (unformat(input, #a)) \
1244 tmp = format (0, "--%s%c", #a, 0); \
1245 vec_add1 (conf->eal_init_args, tmp); \
1247 foreach_eal_double_hyphen_predicate_arg
1250 else if (unformat(input, #a " %s", &s)) \
1252 if (!strncmp(#a, "file-prefix", 11)) \
1254 tmp = format (0, "--%s%c", #a, 0); \
1255 vec_add1 (conf->eal_init_args, tmp); \
1257 if (!strncmp(#a, "vdev", 4)) \
1258 if (strstr((char*)s, "af_packet")) \
1259 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1260 vec_add1 (conf->eal_init_args, s); \
1262 foreach_eal_double_hyphen_arg
1265 else if (unformat(input, #a " %s", &s)) \
1267 tmp = format (0, "-%s%c", #b, 0); \
1268 vec_add1 (conf->eal_init_args, tmp); \
1270 vec_add1 (conf->eal_init_args, s); \
1272 foreach_eal_single_hyphen_arg
1275 else if (unformat(input, #a " %s", &s)) \
1277 tmp = format (0, "-%s%c", #b, 0); \
1278 vec_add1 (conf->eal_init_args, tmp); \
1280 vec_add1 (conf->eal_init_args, s); \
1281 conf->a##_set_manually = 1; \
1283 foreach_eal_single_hyphen_mandatory_arg
1285 else if (unformat (input, "default"))
1288 else if (unformat_skip_white_space (input))
1292 error = clib_error_return (0, "unknown input `%U'",
1293 format_unformat_error, input);
1298 if (!conf->uio_driver_name)
1299 conf->uio_driver_name = format (0, "auto%c", 0);
1301 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1304 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1308 /* preallocate at least 16MB of hugepages per socket,
1309 if more is needed it is up to consumer to preallocate more */
1310 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1311 n_pages /= default_hugepage_sz;
1313 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1314 clib_error_report (e);
1320 tmp = format (0, "--file-prefix%c", 0);
1321 vec_add1 (conf->eal_init_args, tmp);
1322 tmp = format (0, "vpp%c", 0);
1323 vec_add1 (conf->eal_init_args, tmp);
1329 /* I'll bet that -c and -n must be the first and second args... */
1330 if (!conf->coremask_set_manually)
1332 vlib_thread_registration_t *tr;
1333 uword *coremask = 0;
1336 /* main thread core */
1337 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1339 for (i = 0; i < vec_len (tm->registrations); i++)
1341 tr = tm->registrations[i];
1342 coremask = clib_bitmap_or (coremask, tr->coremask);
1345 vec_insert (conf->eal_init_args, 2, 1);
1346 conf->eal_init_args[1] = (u8 *) "-c";
1347 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1348 conf->eal_init_args[2] = tmp;
1349 clib_bitmap_free (coremask);
1352 if (!conf->nchannels_set_manually)
1354 vec_insert (conf->eal_init_args, 2, 3);
1355 conf->eal_init_args[3] = (u8 *) "-n";
1356 tmp = format (0, "%d", conf->nchannels);
1357 conf->eal_init_args[4] = tmp;
1360 if (no_pci == 0 && geteuid () == 0)
1361 dpdk_bind_devices_to_uio (conf);
1363 if (no_vmbus == 0 && geteuid () == 0)
1364 dpdk_bind_vmbus_devices_to_uio (conf);
1367 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1368 devconf->x = conf->default_devconf.x ;
1371 pool_foreach (devconf, conf->dev_confs, ({
1373 /* default per-device config items */
1374 foreach_dpdk_device_config_item
1376 /* add DPDK EAL whitelist/blacklist entry */
1377 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1379 tmp = format (0, "-w%c", 0);
1380 vec_add1 (conf->eal_init_args, tmp);
1381 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1382 vec_add1 (conf->eal_init_args, tmp);
1384 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1386 tmp = format (0, "-b%c", 0);
1387 vec_add1 (conf->eal_init_args, tmp);
1388 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1389 vec_add1 (conf->eal_init_args, tmp);
1396 /* set master-lcore */
1397 tmp = format (0, "--master-lcore%c", 0);
1398 vec_add1 (conf->eal_init_args, tmp);
1399 tmp = format (0, "%u%c", tm->main_lcore, 0);
1400 vec_add1 (conf->eal_init_args, tmp);
1404 clib_warning ("socket-mem argument is deprecated");
1406 /* NULL terminate the "argv" vector, in case of stupidity */
1407 vec_add1 (conf->eal_init_args, 0);
1408 _vec_len (conf->eal_init_args) -= 1;
1410 /* Set up DPDK eal and packet mbuf pool early. */
1412 rte_log_set_global_level (log_level);
1413 int log_fds[2] = { 0 };
1414 if (pipe (log_fds) == 0)
1416 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1418 FILE *f = fdopen (log_fds[1], "a");
1419 if (f && rte_openlog_stream (f) == 0)
1421 clib_file_t t = { 0 };
1422 t.read_function = dpdk_log_read_ready;
1423 t.file_descriptor = log_fds[0];
1424 t.description = format (0, "DPDK logging pipe");
1425 clib_file_add (&file_main, &t);
1435 vm = vlib_get_main ();
1437 /* make copy of args as rte_eal_init tends to mess up with arg array */
1438 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1439 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1440 conf->eal_init_args[i]);
1442 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1443 ret = rte_eal_init (vec_len (conf->eal_init_args),
1444 (char **) conf->eal_init_args);
1446 /* lazy umount hugepages */
1447 umount2 ((char *) huge_dir_path, MNT_DETACH);
1448 rmdir ((char *) huge_dir_path);
1449 vec_free (huge_dir_path);
1452 return clib_error_return (0, "rte_eal_init returned %d", ret);
1454 /* set custom ring memory allocator */
1456 struct rte_mempool_ops *ops = NULL;
1458 ops = get_ops_by_name ("ring_sp_sc");
1459 ops->alloc = dpdk_ring_alloc;
1461 ops = get_ops_by_name ("ring_mp_sc");
1462 ops->alloc = dpdk_ring_alloc;
1464 ops = get_ops_by_name ("ring_sp_mc");
1465 ops->alloc = dpdk_ring_alloc;
1467 ops = get_ops_by_name ("ring_mp_mc");
1468 ops->alloc = dpdk_ring_alloc;
1471 /* main thread 1st */
1472 error = dpdk_buffer_pool_create (vm, conf->num_mbufs, rte_socket_id ());
1476 for (i = 0; i < RTE_MAX_LCORE; i++)
1478 error = dpdk_buffer_pool_create (vm, conf->num_mbufs,
1479 rte_lcore_to_socket_id (i));
1488 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1491 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1493 vnet_main_t *vnm = vnet_get_main ();
1494 struct rte_eth_link prev_link = xd->link;
1496 u8 hw_flags_chg = 0;
1498 /* only update link state for PMD interfaces */
1499 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1502 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1503 clib_memset (&xd->link, 0, sizeof (xd->link));
1504 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1506 if (LINK_STATE_ELOGS)
1508 vlib_main_t *vm = vlib_get_main ();
1509 ELOG_TYPE_DECLARE (e) =
1512 "update-link-state: sw_if_index %d, admin_up %d,"
1513 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1522 ed = ELOG_DATA (&vm->elog_main, e);
1523 ed->sw_if_index = xd->sw_if_index;
1524 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1525 ed->old_link_state = (u8)
1526 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1527 ed->new_link_state = (u8) xd->link.link_status;
1530 if ((xd->flags & (DPDK_DEVICE_FLAG_ADMIN_UP | DPDK_DEVICE_FLAG_BOND_SLAVE))
1531 && ((xd->link.link_status != 0) ^
1532 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index)))
1535 hw_flags |= (xd->link.link_status ? VNET_HW_INTERFACE_FLAG_LINK_UP : 0);
1538 if (hw_flags_chg || (xd->link.link_duplex != prev_link.link_duplex))
1541 switch (xd->link.link_duplex)
1543 case ETH_LINK_HALF_DUPLEX:
1544 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1546 case ETH_LINK_FULL_DUPLEX:
1547 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1553 if (xd->link.link_speed != prev_link.link_speed)
1554 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1555 xd->link.link_speed * 1000);
1559 if (LINK_STATE_ELOGS)
1561 vlib_main_t *vm = vlib_get_main ();
1563 ELOG_TYPE_DECLARE (e) =
1566 "update-link-state: sw_if_index %d, new flags %d",.format_args
1574 ed = ELOG_DATA (&vm->elog_main, e);
1575 ed->sw_if_index = xd->sw_if_index;
1576 ed->flags = hw_flags;
1578 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1583 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1585 clib_error_t *error;
1586 vnet_main_t *vnm = vnet_get_main ();
1587 dpdk_main_t *dm = &dpdk_main;
1588 ethernet_main_t *em = ðernet_main;
1590 vlib_thread_main_t *tm = vlib_get_thread_main ();
1594 error = dpdk_lib_init (dm);
1597 clib_error_report (error);
1599 tm->worker_thread_release = 1;
1601 f64 now = vlib_time_now (vm);
1602 vec_foreach (xd, dm->devices)
1604 dpdk_update_link_state (xd, now);
1609 * Extra set up for bond interfaces:
1610 * 1. Setup MACs for bond interfaces and their slave links which was set
1611 * in dpdk_device_setup() but needs to be done again here to take
1613 * 2. Set up info and register slave link state change callback handling.
1614 * 3. Set up info for bond interface related CLI support.
1616 int nports = rte_eth_dev_count_avail ();
1620 RTE_ETH_FOREACH_DEV(i)
1623 for (j = 0; j < nports; j++)
1625 if (dm->devices[j].port_id == i)
1627 xd = &dm->devices[j];
1630 if (xd != NULL && xd->pmd == VNET_DPDK_PMD_BOND)
1633 dpdk_portid_t slink[16];
1634 int nlink = rte_eth_bond_slaves_get (i, slink, 16);
1637 vnet_hw_interface_t *bhi;
1638 ethernet_interface_t *bei;
1641 /* Get MAC of 1st slave link */
1643 (slink[0], (struct ether_addr *) addr);
1645 /* Set MAC of bounded interface to that of 1st slave link */
1646 dpdk_log_info ("Set MAC for bond port %d BondEthernet%d",
1647 i, xd->bond_instance_num);
1648 rv = rte_eth_bond_mac_address_set
1649 (i, (struct ether_addr *) addr);
1651 dpdk_log_warn ("Set MAC addr failure rv=%d", rv);
1653 /* Populate MAC of bonded interface in VPP hw tables */
1654 bhi = vnet_get_hw_interface
1655 (vnm, dm->devices[i].hw_if_index);
1656 bei = pool_elt_at_index
1657 (em->interfaces, bhi->hw_instance);
1658 clib_memcpy (bhi->hw_address, addr, 6);
1659 clib_memcpy (bei->address, addr, 6);
1661 /* Init l3 packet size allowed on bonded interface */
1662 bhi->max_packet_bytes = ETHERNET_MAX_PACKET_BYTES;
1664 { /* for all slave links */
1665 int slave = slink[--nlink];
1666 dpdk_device_t *sdev = &dm->devices[slave];
1667 vnet_hw_interface_t *shi;
1668 vnet_sw_interface_t *ssi;
1669 ethernet_interface_t *sei;
1670 /* Add MAC to all slave links except the first one */
1673 dpdk_log_info ("Add MAC for slave port %d",
1675 rv = rte_eth_dev_mac_addr_add
1676 (slave, (struct ether_addr *) addr, 0);
1678 dpdk_log_warn ("Add MAC addr failure rv=%d",
1681 /* Setup slave link state change callback handling */
1682 rte_eth_dev_callback_register
1683 (slave, RTE_ETH_EVENT_INTR_LSC,
1684 dpdk_port_state_callback, NULL);
1685 dpdk_device_t *sxd = &dm->devices[slave];
1686 sxd->flags |= DPDK_DEVICE_FLAG_BOND_SLAVE;
1688 /* Set slaves bitmap for bonded interface */
1689 bhi->bond_info = clib_bitmap_set
1690 (bhi->bond_info, sdev->hw_if_index, 1);
1691 /* Set MACs and slave link flags on slave interface */
1692 shi = vnet_get_hw_interface (vnm, sdev->hw_if_index);
1693 ssi = vnet_get_sw_interface (vnm, sdev->sw_if_index);
1694 sei = pool_elt_at_index
1695 (em->interfaces, shi->hw_instance);
1696 shi->bond_info = VNET_HW_INTERFACE_BOND_INFO_SLAVE;
1697 ssi->flags |= VNET_SW_INTERFACE_FLAG_BOND_SLAVE;
1698 clib_memcpy (shi->hw_address, addr, 6);
1699 clib_memcpy (sei->address, addr, 6);
1700 /* Set l3 packet size allowed as the lowest of slave */
1701 if (bhi->max_packet_bytes > shi->max_packet_bytes)
1702 bhi->max_packet_bytes = shi->max_packet_bytes;
1714 * check each time through the loop in case intervals are changed
1716 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1717 dm->link_state_poll_interval : dm->stat_poll_interval;
1719 vlib_process_wait_for_event_or_clock (vm, min_wait);
1721 if (dm->admin_up_down_in_progress)
1722 /* skip the poll if an admin up down is in progress (on any interface) */
1725 vec_foreach (xd, dm->devices)
1727 f64 now = vlib_time_now (vm);
1728 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1729 dpdk_update_counters (xd, now);
1730 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1731 dpdk_update_link_state (xd, now);
1740 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1741 .function = dpdk_process,
1742 .type = VLIB_NODE_TYPE_PROCESS,
1743 .name = "dpdk-process",
1744 .process_log2_n_stack_bytes = 17,
1748 static clib_error_t *
1749 dpdk_init (vlib_main_t * vm)
1751 dpdk_main_t *dm = &dpdk_main;
1752 clib_error_t *error = 0;
1754 /* verify that structs are cacheline aligned */
1755 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1756 "Cache line marker must be 1st element in dpdk_device_t");
1757 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1758 CLIB_CACHE_LINE_BYTES,
1759 "Data in cache line 0 is bigger than cache line size");
1760 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1761 "Cache line marker must be 1st element in frame_queue_trace_t");
1762 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1763 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1766 dm->vnet_main = vnet_get_main ();
1767 dm->conf = &dpdk_config_main;
1769 dm->conf->nchannels = 4;
1770 dm->conf->num_mbufs = dm->conf->num_mbufs ? dm->conf->num_mbufs : NB_MBUF;
1771 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1772 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1774 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1775 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1776 VLIB_BUFFER_EXT_HDR_VALID |
1777 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1778 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1780 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1781 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1784 if ((error = vlib_call_init_function (vm, dpdk_cli_init)))
1787 dm->log_default = vlib_log_register_class ("dpdk", 0);
1792 VLIB_INIT_FUNCTION (dpdk_init);
1796 * fd.io coding-style-patch-verification: ON
1799 * eval: (c-set-style "gnu")