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 <vnet/interface/rx_queue_funcs.h>
26 #include <dpdk/buffer.h>
27 #include <dpdk/device/dpdk.h>
28 #include <dpdk/cryptodev/cryptodev.h>
29 #include <vlib/pci/pci.h>
30 #include <vlib/vmbus/vmbus.h>
38 #include <sys/mount.h>
43 #include <dpdk/device/dpdk_priv.h>
45 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
47 dpdk_main_t dpdk_main;
48 dpdk_config_main_t dpdk_config_main;
50 #define LINK_STATE_ELOGS 0
52 /* Port configuration, mildly modified Intel app values */
54 static dpdk_port_type_t
55 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
58 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
59 return VNET_DPDK_PORT_TYPE_ETH_100G;
60 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
61 return VNET_DPDK_PORT_TYPE_ETH_56G;
62 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
63 return VNET_DPDK_PORT_TYPE_ETH_50G;
64 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
65 return VNET_DPDK_PORT_TYPE_ETH_40G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
67 return VNET_DPDK_PORT_TYPE_ETH_25G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
69 return VNET_DPDK_PORT_TYPE_ETH_20G;
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_5G)
73 return VNET_DPDK_PORT_TYPE_ETH_5G;
74 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
75 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
76 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
77 return VNET_DPDK_PORT_TYPE_ETH_1G;
79 return VNET_DPDK_PORT_TYPE_UNKNOWN;
82 static dpdk_port_type_t
83 port_type_from_link_speed (u32 link_speed)
87 case ETH_SPEED_NUM_1G:
88 return VNET_DPDK_PORT_TYPE_ETH_1G;
89 case ETH_SPEED_NUM_2_5G:
90 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
91 case ETH_SPEED_NUM_5G:
92 return VNET_DPDK_PORT_TYPE_ETH_5G;
93 case ETH_SPEED_NUM_10G:
94 return VNET_DPDK_PORT_TYPE_ETH_10G;
95 case ETH_SPEED_NUM_20G:
96 return VNET_DPDK_PORT_TYPE_ETH_20G;
97 case ETH_SPEED_NUM_25G:
98 return VNET_DPDK_PORT_TYPE_ETH_25G;
99 case ETH_SPEED_NUM_40G:
100 return VNET_DPDK_PORT_TYPE_ETH_40G;
101 case ETH_SPEED_NUM_50G:
102 return VNET_DPDK_PORT_TYPE_ETH_50G;
103 case ETH_SPEED_NUM_56G:
104 return VNET_DPDK_PORT_TYPE_ETH_56G;
105 case ETH_SPEED_NUM_100G:
106 return VNET_DPDK_PORT_TYPE_ETH_100G;
108 return VNET_DPDK_PORT_TYPE_UNKNOWN;
113 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
115 dpdk_main_t *dm = &dpdk_main;
116 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
117 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
121 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
122 /* set to L3/non-promisc mode */
123 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
125 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
126 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
128 case ETHERNET_INTERFACE_FLAG_MTU:
129 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
130 dpdk_device_setup (xd);
136 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
138 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
139 rte_eth_promiscuous_enable (xd->port_id);
141 rte_eth_promiscuous_disable (xd->port_id);
148 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
150 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
153 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
154 return value 1: exist.
155 return value 0: not exist.
163 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
164 DIR *dir_cache = opendir (sys_cache_dir);
166 if (dir_cache == NULL)
169 while ((dp = readdir (dir_cache)) != NULL)
171 if (dp->d_type == DT_DIR)
174 int level_cache = -1;
176 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
177 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
178 clib_error_free (err);
180 if (level_cache == 3)
182 closedir (dir_cache);
188 if (dir_cache != NULL)
189 closedir (dir_cache);
195 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
197 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
198 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
199 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
200 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
203 static clib_error_t *
204 dpdk_lib_init (dpdk_main_t * dm)
207 u32 mtu, max_rx_frame;
210 vlib_main_t *vm = vlib_get_main ();
211 vlib_thread_main_t *tm = vlib_get_thread_main ();
212 vnet_device_main_t *vdm = &vnet_device_main;
213 vnet_sw_interface_t *sw;
214 vnet_hw_interface_t *hi;
216 vlib_pci_addr_t last_pci_addr;
217 u32 last_pci_addr_port = 0;
218 u8 af_packet_instance_num = 0;
219 last_pci_addr.as_u32 = ~0;
221 nports = rte_eth_dev_count_avail ();
225 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
229 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
231 if (dm->conf->enable_tcp_udp_checksum)
232 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
233 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
235 /* vlib_buffer_t template */
236 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
237 CLIB_CACHE_LINE_BYTES);
238 for (i = 0; i < tm->n_vlib_mains; i++)
240 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
241 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
242 ptd->buffer_template.flags = dm->buffer_flags_template;
243 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
247 RTE_ETH_FOREACH_DEV(i)
251 struct rte_eth_dev_info dev_info;
252 struct rte_pci_device *pci_dev;
253 struct rte_vmbus_device *vmbus_dev;
254 dpdk_portid_t next_port_id;
255 dpdk_device_config_t *devconf = 0;
256 vlib_pci_addr_t pci_addr;
257 vlib_vmbus_addr_t vmbus_addr;
260 if (!rte_eth_dev_is_valid_port(i))
263 rte_eth_dev_info_get (i, &dev_info);
265 if (dev_info.device == 0)
267 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
268 dev_info.driver_name);
272 pci_dev = dpdk_get_pci_device (&dev_info);
276 pci_addr.domain = pci_dev->addr.domain;
277 pci_addr.bus = pci_dev->addr.bus;
278 pci_addr.slot = pci_dev->addr.devid;
279 pci_addr.function = pci_dev->addr.function;
280 p = hash_get (dm->conf->device_config_index_by_pci_addr,
284 vmbus_dev = dpdk_get_vmbus_device (&dev_info);
288 unformat_input_t input_vmbus;
290 unformat_init_vector (&input_vmbus, (u8 *) dev_info.device->name);
291 if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr,
294 p = hash_get (dm->conf->device_config_index_by_vmbus_addr,
295 vmbus_addr.as_u32[0]);
301 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
302 /* If device is blacklisted, we should skip it */
303 if (devconf->is_blacklisted)
309 devconf = &dm->conf->default_devconf;
311 /* Create vnet interface */
312 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
313 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
314 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
315 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
318 xd->name = devconf->name;
321 /* Handle representor devices that share the same PCI ID */
322 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
324 if (dev_info.switch_info.port_id != (uint16_t)-1)
325 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
327 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
329 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
331 struct rte_eth_dev_info di = { 0 };
332 struct rte_pci_device *next_pci_dev;
333 rte_eth_dev_info_get (next_port_id, &di);
334 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
336 pci_addr.as_u32 != last_pci_addr.as_u32 &&
337 memcmp (&pci_dev->addr, &next_pci_dev->addr,
338 sizeof (struct rte_pci_addr)) == 0)
340 xd->interface_name_suffix = format (0, "0");
341 last_pci_addr.as_u32 = pci_addr.as_u32;
342 last_pci_addr_port = i;
344 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
346 xd->interface_name_suffix =
347 format (0, "%u", i - last_pci_addr_port);
351 last_pci_addr.as_u32 = ~0;
355 last_pci_addr.as_u32 = ~0;
357 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
358 sizeof (struct rte_eth_txconf));
360 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
362 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
363 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
366 if (dm->conf->enable_tcp_udp_checksum)
368 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
369 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
370 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
371 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
374 if (dm->conf->no_multi_seg)
376 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
377 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
378 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
382 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
383 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
384 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
385 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
388 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
390 if (devconf->num_tx_queues > 0
391 && devconf->num_tx_queues < xd->tx_q_used)
392 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
394 if (devconf->num_rx_queues > 1
395 && dev_info.max_rx_queues >= devconf->num_rx_queues)
397 xd->rx_q_used = devconf->num_rx_queues;
398 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
399 if (devconf->rss_fn == 0)
400 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
401 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
404 u64 unsupported_bits;
405 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
406 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
407 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
408 if (unsupported_bits)
409 dpdk_log_warn ("Unsupported RSS hash functions: %U",
410 format_dpdk_rss_hf_name, unsupported_bits);
412 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
413 dev_info.flow_type_rss_offloads;
418 vec_validate_aligned (xd->rx_queues, xd->rx_q_used - 1,
419 CLIB_CACHE_LINE_BYTES);
421 xd->flags |= DPDK_DEVICE_FLAG_PMD;
423 /* workaround for drivers not setting driver_name */
424 if ((!dev_info.driver_name) && (pci_dev))
425 dev_info.driver_name = pci_dev->driver->driver.name;
427 ASSERT (dev_info.driver_name);
433 #define _(s,f) else if (dev_info.driver_name && \
434 !strcmp(dev_info.driver_name, s)) \
435 xd->pmd = VNET_DPDK_PMD_##f;
441 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
443 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
444 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
445 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
449 /* Drivers with valid speed_capa set */
450 case VNET_DPDK_PMD_E1000EM:
451 case VNET_DPDK_PMD_IGB:
452 case VNET_DPDK_PMD_IXGBE:
453 case VNET_DPDK_PMD_I40E:
454 case VNET_DPDK_PMD_ICE:
455 xd->port_type = port_type_from_speed_capa (&dev_info);
456 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
457 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
458 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
459 VNET_FLOW_ACTION_BUFFER_ADVANCE |
460 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
461 VNET_FLOW_ACTION_RSS;
463 if (dm->conf->no_tx_checksum_offload == 0)
465 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
466 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
468 DPDK_DEVICE_FLAG_TX_OFFLOAD |
469 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
474 case VNET_DPDK_PMD_CXGBE:
475 case VNET_DPDK_PMD_MLX4:
476 case VNET_DPDK_PMD_MLX5:
477 case VNET_DPDK_PMD_QEDE:
478 case VNET_DPDK_PMD_BNXT:
479 xd->port_type = port_type_from_speed_capa (&dev_info);
483 case VNET_DPDK_PMD_IGBVF:
484 case VNET_DPDK_PMD_IXGBEVF:
485 case VNET_DPDK_PMD_I40EVF:
486 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
487 if (dm->conf->no_tx_checksum_offload == 0)
489 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
490 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
492 DPDK_DEVICE_FLAG_TX_OFFLOAD |
493 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
498 case VNET_DPDK_PMD_IAVF:
499 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
500 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
501 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
502 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
503 VNET_FLOW_ACTION_BUFFER_ADVANCE |
504 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
506 if (dm->conf->no_tx_checksum_offload == 0)
508 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
509 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
511 DPDK_DEVICE_FLAG_TX_OFFLOAD |
512 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
516 case VNET_DPDK_PMD_THUNDERX:
517 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
519 if (dm->conf->no_tx_checksum_offload == 0)
521 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
522 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
523 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
527 case VNET_DPDK_PMD_ENA:
528 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
529 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
532 case VNET_DPDK_PMD_DPAA2:
533 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
537 case VNET_DPDK_PMD_ENIC:
539 struct rte_eth_link l;
540 rte_eth_link_get_nowait (i, &l);
541 xd->port_type = port_type_from_link_speed (l.link_speed);
542 if (dm->conf->enable_tcp_udp_checksum)
543 dpdk_enable_l4_csum_offload (xd);
547 /* Intel Red Rock Canyon */
548 case VNET_DPDK_PMD_FM10K:
549 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
553 case VNET_DPDK_PMD_VIRTIO:
554 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
555 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
556 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
557 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
561 case VNET_DPDK_PMD_VMXNET3:
562 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
563 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
566 case VNET_DPDK_PMD_AF_PACKET:
567 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
568 xd->af_packet_instance_num = af_packet_instance_num++;
571 case VNET_DPDK_PMD_VIRTIO_USER:
572 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
575 case VNET_DPDK_PMD_VHOST_ETHER:
576 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
579 case VNET_DPDK_PMD_LIOVF_ETHER:
580 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
583 case VNET_DPDK_PMD_FAILSAFE:
584 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
585 xd->port_conf.intr_conf.lsc = 1;
588 case VNET_DPDK_PMD_NETVSC:
590 struct rte_eth_link l;
591 rte_eth_link_get_nowait (i, &l);
592 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
597 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
600 if (devconf->num_rx_desc)
601 xd->nb_rx_desc = devconf->num_rx_desc;
604 /* If num_rx_desc is not specified by VPP user, the current CPU is working
605 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
606 from original 1024 to help reduce TLB misses.
608 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
609 && check_l3cache() == 0)
610 xd->nb_rx_desc = 512;
613 if (devconf->num_tx_desc)
614 xd->nb_tx_desc = devconf->num_tx_desc;
617 /* If num_tx_desc is not specified by VPP user, the current CPU is working
618 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
619 from original 1024 to help reduce TLB misses.
621 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
622 && check_l3cache() == 0)
623 xd->nb_tx_desc = 512;
627 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
629 f64 now = vlib_time_now (vm);
631 rnd = (u32) (now * 1e6);
632 rnd = random_u32 (&rnd);
633 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
638 rte_eth_macaddr_get (i, (void *) addr);
641 xd->device_index = xd - dm->devices;
642 xd->per_interface_next_index = ~0;
644 /* assign interface to input thread */
647 error = ethernet_register_interface
648 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
649 /* ethernet address */ addr,
650 &xd->hw_if_index, dpdk_flag_change);
655 * Ensure default mtu is not > the mtu read from the hardware.
656 * Otherwise rte_eth_dev_configure() will fail and the port will
658 * Calculate max_frame_size and mtu supported by NIC
660 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
663 * This device does not support the platforms's max frame
664 * size. Use it's advertised mru instead.
666 max_rx_frame = dev_info.max_rx_pktlen;
667 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
671 /* VPP treats MTU and max_rx_pktlen both equal to
672 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
673 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
675 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
676 sizeof (ethernet_header_t)))
678 mtu = ETHERNET_MAX_PACKET_BYTES;
679 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
682 * Some platforms do not account for Ethernet FCS (4 bytes) in
683 * MTU calculations. To interop with them increase mru but only
684 * if the device's settings can support it.
686 if (dpdk_port_crc_strip_enabled (xd) &&
687 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
688 sizeof (ethernet_header_t) +
696 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
697 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
699 if (dpdk_port_crc_strip_enabled (xd) &&
700 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
707 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
709 /* failsafe device numerables are reported with active device only,
710 * need to query the mtu for current device setup to overwrite
714 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
717 max_rx_frame = mtu + sizeof (ethernet_header_t);
719 if (dpdk_port_crc_strip_enabled (xd))
726 /*Set port rxmode config */
727 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
729 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
730 xd->sw_if_index = sw->sw_if_index;
731 vnet_hw_if_set_input_node (dm->vnet_main, xd->hw_if_index,
732 dpdk_input_node.index);
734 if (devconf->workers)
738 clib_bitmap_foreach (i, devconf->workers) {
739 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
740 rxq->queue_index = vnet_hw_if_register_rx_queue (
741 dm->vnet_main, xd->hw_if_index, q++,
742 vdm->first_worker_thread_index + i);
746 for (q = 0; q < xd->rx_q_used; q++)
748 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
749 rxq->queue_index = vnet_hw_if_register_rx_queue (
750 dm->vnet_main, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
753 vnet_hw_if_update_runtime_data (dm->vnet_main, xd->hw_if_index);
755 /*Get vnet hardware interface */
756 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
758 /*Override default max_packet_bytes and max_supported_bytes set in
759 * ethernet_register_interface() above*/
762 hi->max_packet_bytes = mtu;
763 hi->max_supported_packet_bytes = max_rx_frame;
764 hi->numa_node = xd->cpu_socket;
766 /* Indicate ability to support L3 DMAC filtering and
767 * initialize interface to L3 non-promisc mode */
768 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
769 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
770 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
773 if (dm->conf->no_tx_checksum_offload == 0)
774 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
775 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
777 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
779 /*tcp_udp checksum must be enabled*/
780 if ((dm->conf->enable_tcp_udp_checksum) &&
781 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
783 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
784 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
785 DEV_TX_OFFLOAD_UDP_TSO;
788 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
792 dpdk_device_setup (xd);
794 /* rss queues should be configured after dpdk_device_setup() */
795 if ((hi != NULL) && (devconf->rss_queues != NULL))
797 if (vnet_hw_interface_set_rss_queues
798 (vnet_get_main (), hi, devconf->rss_queues))
800 clib_warning ("%s: Failed to set rss queues", hi->name);
804 if (vec_len (xd->errors))
805 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
806 format_dpdk_device_name, i,
807 format_dpdk_device_errors, xd);
810 * A note on Cisco VIC (PMD_ENIC) and VLAN:
812 * With Cisco VIC vNIC, every ingress packet is tagged. On a
813 * trunk vNIC (C series "standalone" server), packets on no VLAN
814 * are tagged with vlan 0. On an access vNIC (standalone or B
815 * series "blade" server), packets on the default/native VLAN
816 * are tagged with that vNIC's VLAN. VPP expects these packets
817 * to be untagged, and previously enabled VLAN strip on VIC by
818 * default. But it also broke vlan sub-interfaces.
820 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
821 * mode, which removes tags from these packets. VPP now includes
822 * a local patch for the enic driver to use this untag mode, so
823 * enabling vlan stripping is no longer needed. In future, the
824 * driver + dpdk will have an API to set the mode after
825 * rte_eal_init. Then, this note and local patch will be
830 * VLAN stripping: default to VLAN strip disabled, unless specified
831 * otherwise in the startup config.
834 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
835 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
837 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
838 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
839 dpdk_log_info ("VLAN strip enabled for interface\n");
841 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
842 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
846 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
848 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
849 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
850 dpdk_log_warn ("set VLAN offload failed\n");
852 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
856 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
857 - sizeof (ethernet_header_t);
859 dpdk_log_warn ("hi NULL");
861 if (dm->conf->no_multi_seg)
862 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
864 rte_eth_dev_set_mtu (xd->port_id, mtu);
873 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
875 vlib_main_t *vm = vlib_get_main ();
878 int num_whitelisted = vec_len (conf->dev_confs);
879 vlib_pci_device_info_t *d = 0;
880 vlib_pci_addr_t *addr = 0, *addrs;
883 addrs = vlib_pci_get_all_dev_addrs ();
885 vec_foreach (addr, addrs)
887 dpdk_device_config_t * devconf = 0;
888 vec_reset_length (pci_addr);
889 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
892 vlib_pci_free_device_info (d);
895 d = vlib_pci_get_device_info (vm, addr, &error);
898 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
899 clib_error_free (error);
903 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
908 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
916 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
919 /* Enforce Device blacklist by vendor and device */
920 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
923 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
924 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
925 if (d->vendor_id == vendor && d->device_id == device)
928 * Expected case: device isn't whitelisted,
933 /* Device is blacklisted */
934 pool_get (conf->dev_confs, devconf);
935 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
936 devconf - conf->dev_confs);
937 devconf->pci_addr.as_u32 = addr->as_u32;
938 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
939 devconf->is_blacklisted = 1;
942 else /* explicitly whitelisted, ignore the device blacklist */
948 if (d->vendor_id == 0x1af4 &&
949 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
950 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
953 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
956 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
957 * the default is to put it in the blacklist.
961 pool_get (conf->dev_confs, devconf);
962 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
963 devconf - conf->dev_confs);
964 devconf->pci_addr.as_u32 = addr->as_u32;
965 devconf->is_blacklisted = 1;
968 /* all Intel network devices */
969 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
971 /* all Intel QAT devices VFs */
972 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
973 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
974 d->device_id == 0x37c9 || d->device_id == 0x6f55))
977 else if (d->vendor_id == 0x1137 &&
978 (d->device_id == 0x0043 || d->device_id == 0x0071))
981 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
983 /* Amazon Elastic Network Adapter */
984 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
986 /* Cavium Network Adapter */
987 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
989 /* Cavium FastlinQ QL41000 Series */
990 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
992 /* Mellanox CX3, CX3VF */
993 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
997 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
998 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
1002 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
1003 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
1007 /* Broadcom NetXtreme S, and E series only */
1008 else if (d->vendor_id == 0x14e4 &&
1009 ((d->device_id >= 0x16c0 &&
1010 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1011 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1012 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1013 d->device_id != 0x170d && d->device_id != 0x170c &&
1014 d->device_id != 0x170e && d->device_id != 0x1712 &&
1015 d->device_id != 0x1713) ||
1016 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1017 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1018 d->device_id == 0x1609 || d->device_id == 0x1614)))
1022 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1023 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1028 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1034 pool_get (conf->dev_confs, devconf);
1035 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1036 devconf - conf->dev_confs);
1037 devconf->pci_addr.as_u32 = addr->as_u32;
1039 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1040 devconf->is_blacklisted = 1;
1041 clib_error_report (error);
1045 vec_free (pci_addr);
1046 vlib_pci_free_device_info (d);
1050 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1052 clib_error_t *error;
1053 vlib_vmbus_addr_t *addrs, *addr = 0;
1054 int num_whitelisted = vec_len (conf->dev_confs);
1057 addrs = vlib_vmbus_get_all_dev_addrs ();
1060 vec_foreach (addr, addrs)
1062 dpdk_device_config_t *devconf = 0;
1063 if (num_whitelisted)
1065 uword *p = hash_get (conf->device_config_index_by_vmbus_addr,
1069 /* No devices blacklisted, but have whitelisted. blacklist all
1070 * non-whitelisted */
1071 pool_get (conf->dev_confs, devconf);
1072 hash_set (conf->device_config_index_by_vmbus_addr,
1073 addr->as_u32[0], devconf - conf->dev_confs);
1074 devconf->vmbus_addr = *addr;
1075 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1076 devconf->is_blacklisted = 1;
1081 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1084 /* Enforce Device blacklist by vmbus_addr */
1085 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1087 u32 vmbus_as_u32 = conf->blacklist_by_vmbus_addr[i];
1088 if (vmbus_as_u32 == addr->as_u32[0])
1092 /* Device not whitelisted */
1093 pool_get (conf->dev_confs, devconf);
1094 hash_set (conf->device_config_index_by_vmbus_addr,
1095 addr->as_u32[0], devconf - conf->dev_confs);
1096 devconf->vmbus_addr = *addr;
1097 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1098 devconf->is_blacklisted = 1;
1108 error = vlib_vmbus_bind_to_uio (addr);
1113 pool_get (conf->dev_confs, devconf);
1114 hash_set (conf->device_config_index_by_vmbus_addr,
1115 addr->as_u32[0], devconf - conf->dev_confs);
1116 devconf->vmbus_addr = *addr;
1118 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1119 devconf->is_blacklisted = 1;
1120 clib_error_report (error);
1126 static clib_error_t *
1127 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1128 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1131 clib_error_t *error = 0;
1133 dpdk_device_config_t *devconf = 0;
1134 unformat_input_t sub_input;
1138 devconf = &conf->default_devconf;
1140 else if (addr_type == VNET_DEV_ADDR_PCI)
1142 p = hash_get (conf->device_config_index_by_pci_addr,
1143 ((vlib_pci_addr_t *) (addr))->as_u32);
1147 pool_get (conf->dev_confs, devconf);
1148 hash_set (conf->device_config_index_by_pci_addr,
1149 ((vlib_pci_addr_t *) (addr))->as_u32,
1150 devconf - conf->dev_confs);
1153 return clib_error_return (0,
1154 "duplicate configuration for PCI address %U",
1155 format_vlib_pci_addr, addr);
1157 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1159 p = hash_get (conf->device_config_index_by_vmbus_addr,
1160 ((vlib_vmbus_addr_t *) (addr))->as_u32[0]);
1164 pool_get (conf->dev_confs, devconf);
1165 hash_set (conf->device_config_index_by_vmbus_addr,
1166 ((vlib_vmbus_addr_t *) (addr))->as_u32[0],
1167 devconf - conf->dev_confs);
1170 return clib_error_return (
1171 0, "duplicate configuration for VMBUS address %U",
1172 format_vlib_vmbus_addr, addr);
1175 if (addr_type == VNET_DEV_ADDR_PCI)
1177 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1178 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1179 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1181 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1183 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1184 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1185 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1191 unformat_skip_white_space (input);
1192 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1194 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1196 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1198 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1200 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1202 else if (unformat (input, "name %s", &devconf->name))
1204 else if (unformat (input, "workers %U", unformat_bitmap_list,
1209 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1211 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1215 else if (unformat (input, "vlan-strip-offload off"))
1216 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1217 else if (unformat (input, "vlan-strip-offload on"))
1218 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1219 else if (unformat (input, "tso on"))
1221 devconf->tso = DPDK_DEVICE_TSO_ON;
1223 else if (unformat (input, "tso off"))
1225 devconf->tso = DPDK_DEVICE_TSO_OFF;
1227 else if (unformat (input, "devargs %s", &devconf->devargs))
1229 else if (unformat (input, "rss-queues %U",
1230 unformat_bitmap_list, &devconf->rss_queues))
1234 error = clib_error_return (0, "unknown input `%U'",
1235 format_unformat_error, input);
1243 if (devconf->workers && devconf->num_rx_queues == 0)
1244 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1245 else if (devconf->workers &&
1246 clib_bitmap_count_set_bits (devconf->workers) !=
1247 devconf->num_rx_queues)
1248 error = clib_error_return (0,
1249 "%U: number of worker threads must be "
1250 "equal to number of rx queues",
1251 format_vlib_pci_addr, addr);
1256 static clib_error_t *
1257 dpdk_log_read_ready (clib_file_t * uf)
1259 unformat_input_t input;
1266 uword len = vec_len (s);
1267 vec_resize (s, len + n_try);
1269 n = read (uf->file_descriptor, s + len, n_try);
1270 if (n < 0 && errno != EAGAIN)
1271 return clib_error_return_unix (0, "read");
1272 _vec_len (s) = len + (n < 0 ? 0 : n);
1275 unformat_init_vector (&input, s);
1277 while (unformat_user (&input, unformat_line, &line))
1279 dpdk_log_notice ("%v", line);
1283 unformat_free (&input);
1287 static clib_error_t *
1288 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1290 clib_error_t *error = 0;
1291 dpdk_config_main_t *conf = &dpdk_config_main;
1292 vlib_thread_main_t *tm = vlib_get_thread_main ();
1293 dpdk_device_config_t *devconf;
1294 vlib_pci_addr_t pci_addr = { 0 };
1295 vlib_vmbus_addr_t vmbus_addr = { 0 };
1296 unformat_input_t sub_input;
1297 uword default_hugepage_sz, x;
1300 int num_whitelisted = 0;
1301 int eal_no_hugetlb = 0;
1306 u8 *huge_dir_path = 0;
1307 u32 vendor, device, domain, bus, func;
1310 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1312 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1313 conf->device_config_index_by_vmbus_addr = hash_create (0, sizeof (uword));
1315 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1317 /* Prime the pump */
1318 if (unformat (input, "no-hugetlb"))
1320 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1323 else if (unformat (input, "telemetry"))
1324 conf->enable_telemetry = 1;
1326 else if (unformat (input, "enable-tcp-udp-checksum"))
1327 conf->enable_tcp_udp_checksum = 1;
1329 else if (unformat (input, "no-tx-checksum-offload"))
1330 conf->no_tx_checksum_offload = 1;
1332 else if (unformat (input, "decimal-interface-names"))
1333 conf->interface_name_format_decimal = 1;
1335 else if (unformat (input, "no-multi-seg"))
1336 conf->no_multi_seg = 1;
1338 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1342 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1349 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1350 unformat_vlib_cli_sub_input, &sub_input))
1352 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1360 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1363 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1370 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1371 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1373 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1381 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1385 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1392 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1393 conf->nchannels_set_manually = 0;
1394 else if (unformat (input, "num-crypto-mbufs %d",
1395 &conf->num_crypto_mbufs))
1397 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1399 else if (unformat (input, "socket-mem %s", &socket_mem))
1401 else if (unformat (input, "no-pci"))
1404 tmp = format (0, "--no-pci%c", 0);
1405 vec_add1 (conf->eal_init_args, tmp);
1407 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1410 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr.as_u32[0]);
1414 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1416 tmp = format (0, "-b%c", 0);
1417 vec_add1 (conf->eal_init_args, tmp);
1419 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1420 vec_add1 (conf->eal_init_args, tmp);
1422 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1424 u32 blacklist_entry;
1425 if (vendor > 0xFFFF)
1426 return clib_error_return (0, "blacklist PCI vendor out of range");
1427 if (device > 0xFFFF)
1428 return clib_error_return (0, "blacklist PCI device out of range");
1429 blacklist_entry = (vendor << 16) | (device & 0xffff);
1430 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1433 else if (unformat (input, "no-vmbus"))
1436 tmp = format (0, "--no-vmbus%c", 0);
1437 vec_add1 (conf->eal_init_args, tmp);
1441 else if (unformat(input, #a)) \
1443 tmp = format (0, "--%s%c", #a, 0); \
1444 vec_add1 (conf->eal_init_args, tmp); \
1446 foreach_eal_double_hyphen_predicate_arg
1449 else if (unformat(input, #a " %s", &s)) \
1451 if (!strncmp(#a, "file-prefix", 11)) \
1453 tmp = format (0, "--%s%c", #a, 0); \
1454 vec_add1 (conf->eal_init_args, tmp); \
1456 if (!strncmp(#a, "vdev", 4)) \
1457 if (strstr((char*)s, "af_packet")) \
1458 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1459 vec_add1 (conf->eal_init_args, s); \
1461 foreach_eal_double_hyphen_arg
1464 else if (unformat(input, #a " %s", &s)) \
1466 tmp = format (0, "-%s%c", #b, 0); \
1467 vec_add1 (conf->eal_init_args, tmp); \
1469 vec_add1 (conf->eal_init_args, s); \
1471 foreach_eal_single_hyphen_arg
1474 else if (unformat(input, #a " %s", &s)) \
1476 tmp = format (0, "-%s%c", #b, 0); \
1477 vec_add1 (conf->eal_init_args, tmp); \
1479 vec_add1 (conf->eal_init_args, s); \
1480 conf->a##_set_manually = 1; \
1482 foreach_eal_single_hyphen_mandatory_arg
1484 else if (unformat (input, "default"))
1487 else if (unformat_skip_white_space (input))
1491 error = clib_error_return (0, "unknown input `%U'",
1492 format_unformat_error, input);
1497 if (!conf->uio_driver_name)
1498 conf->uio_driver_name = format (0, "auto%c", 0);
1500 if (eal_no_hugetlb == 0)
1502 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1504 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1507 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1511 /* preallocate at least 16MB of hugepages per socket,
1512 if more is needed it is up to consumer to preallocate more */
1513 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1514 n_pages /= default_hugepage_sz;
1516 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1517 clib_error_report (e);
1522 /* on/off dpdk's telemetry thread */
1523 if (conf->enable_telemetry == 0)
1525 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1530 tmp = format (0, "--file-prefix%c", 0);
1531 vec_add1 (conf->eal_init_args, tmp);
1532 tmp = format (0, "vpp%c", 0);
1533 vec_add1 (conf->eal_init_args, tmp);
1539 /* I'll bet that -c and -n must be the first and second args... */
1540 if (!conf->coremask_set_manually)
1542 vlib_thread_registration_t *tr;
1543 uword *coremask = 0;
1546 /* main thread core */
1547 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1549 for (i = 0; i < vec_len (tm->registrations); i++)
1551 tr = tm->registrations[i];
1552 coremask = clib_bitmap_or (coremask, tr->coremask);
1555 vec_insert (conf->eal_init_args, 2, 1);
1556 conf->eal_init_args[1] = (u8 *) "-c";
1557 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1558 conf->eal_init_args[2] = tmp;
1559 clib_bitmap_free (coremask);
1562 if (!conf->nchannels_set_manually)
1564 vec_insert (conf->eal_init_args, 2, 3);
1565 conf->eal_init_args[3] = (u8 *) "-n";
1566 tmp = format (0, "%d", conf->nchannels);
1567 vec_terminate_c_string (tmp);
1568 conf->eal_init_args[4] = tmp;
1571 if (no_pci == 0 && geteuid () == 0)
1572 dpdk_bind_devices_to_uio (conf);
1574 if (no_vmbus == 0 && geteuid () == 0)
1575 dpdk_bind_vmbus_devices_to_uio (conf);
1578 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1579 devconf->x = conf->default_devconf.x ;
1582 pool_foreach (devconf, conf->dev_confs) {
1584 /* default per-device config items */
1585 foreach_dpdk_device_config_item
1587 /* copy vlan_strip config from default device */
1588 _ (vlan_strip_offload)
1590 /* copy tso config from default device */
1593 /* copy tso config from default device */
1596 /* copy rss_queues config from default device */
1599 /* add DPDK EAL whitelist/blacklist entry */
1600 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1601 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1603 tmp = format (0, "-a%c", 0);
1604 vec_add1 (conf->eal_init_args, tmp);
1605 if (devconf->devargs)
1607 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1608 &devconf->pci_addr, devconf->devargs, 0);
1612 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1614 vec_add1 (conf->eal_init_args, tmp);
1616 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1617 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1619 tmp = format (0, "-b%c", 0);
1620 vec_add1 (conf->eal_init_args, tmp);
1621 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1622 vec_add1 (conf->eal_init_args, tmp);
1629 /* set master-lcore */
1630 tmp = format (0, "--main-lcore%c", 0);
1631 vec_add1 (conf->eal_init_args, tmp);
1632 tmp = format (0, "%u%c", tm->main_lcore, 0);
1633 vec_add1 (conf->eal_init_args, tmp);
1637 clib_warning ("socket-mem argument is deprecated");
1639 /* NULL terminate the "argv" vector, in case of stupidity */
1640 vec_add1 (conf->eal_init_args, 0);
1641 _vec_len (conf->eal_init_args) -= 1;
1643 /* Set up DPDK eal and packet mbuf pool early. */
1645 int log_fds[2] = { 0 };
1646 if (pipe (log_fds) == 0)
1648 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1650 FILE *f = fdopen (log_fds[1], "a");
1651 if (f && rte_openlog_stream (f) == 0)
1653 clib_file_t t = { 0 };
1654 t.read_function = dpdk_log_read_ready;
1655 t.file_descriptor = log_fds[0];
1656 t.description = format (0, "DPDK logging pipe");
1657 clib_file_add (&file_main, &t);
1667 vm = vlib_get_main ();
1669 /* make copy of args as rte_eal_init tends to mess up with arg array */
1670 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1671 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1672 conf->eal_init_args[i]);
1674 vec_terminate_c_string (conf->eal_init_args_str);
1676 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1677 ret = rte_eal_init (vec_len (conf->eal_init_args),
1678 (char **) conf->eal_init_args);
1680 /* lazy umount hugepages */
1681 umount2 ((char *) huge_dir_path, MNT_DETACH);
1682 rmdir ((char *) huge_dir_path);
1683 vec_free (huge_dir_path);
1686 return clib_error_return (0, "rte_eal_init returned %d", ret);
1688 /* main thread 1st */
1689 if ((error = dpdk_buffer_pools_create (vm)))
1696 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1699 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1701 vnet_main_t *vnm = vnet_get_main ();
1702 struct rte_eth_link prev_link = xd->link;
1704 u8 hw_flags_chg = 0;
1706 /* only update link state for PMD interfaces */
1707 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1710 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1711 clib_memset (&xd->link, 0, sizeof (xd->link));
1712 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1714 if (LINK_STATE_ELOGS)
1716 vlib_main_t *vm = vlib_get_main ();
1717 ELOG_TYPE_DECLARE (e) =
1720 "update-link-state: sw_if_index %d, admin_up %d,"
1721 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1730 ed = ELOG_DATA (&vm->elog_main, e);
1731 ed->sw_if_index = xd->sw_if_index;
1732 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1733 ed->old_link_state = (u8)
1734 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1735 ed->new_link_state = (u8) xd->link.link_status;
1738 if ((xd->link.link_duplex != prev_link.link_duplex))
1741 switch (xd->link.link_duplex)
1743 case ETH_LINK_HALF_DUPLEX:
1744 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1746 case ETH_LINK_FULL_DUPLEX:
1747 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1753 if (xd->link.link_speed != prev_link.link_speed)
1754 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1755 xd->link.link_speed * 1000);
1757 if (xd->link.link_status != prev_link.link_status)
1761 if (xd->link.link_status)
1762 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1767 if (LINK_STATE_ELOGS)
1769 vlib_main_t *vm = vlib_get_main ();
1771 ELOG_TYPE_DECLARE (e) =
1774 "update-link-state: sw_if_index %d, new flags %d",.format_args
1782 ed = ELOG_DATA (&vm->elog_main, e);
1783 ed->sw_if_index = xd->sw_if_index;
1784 ed->flags = hw_flags;
1786 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1791 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1793 clib_error_t *error;
1794 dpdk_main_t *dm = &dpdk_main;
1796 vlib_thread_main_t *tm = vlib_get_thread_main ();
1798 error = dpdk_lib_init (dm);
1801 clib_error_report (error);
1803 error = dpdk_cryptodev_init (vm);
1806 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error, error);
1807 clib_error_free (error);
1810 tm->worker_thread_release = 1;
1812 f64 now = vlib_time_now (vm);
1813 vec_foreach (xd, dm->devices)
1815 dpdk_update_link_state (xd, now);
1821 * check each time through the loop in case intervals are changed
1823 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1824 dm->link_state_poll_interval : dm->stat_poll_interval;
1826 vlib_process_wait_for_event_or_clock (vm, min_wait);
1828 if (dm->admin_up_down_in_progress)
1829 /* skip the poll if an admin up down is in progress (on any interface) */
1832 vec_foreach (xd, dm->devices)
1834 f64 now = vlib_time_now (vm);
1835 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1836 dpdk_update_counters (xd, now);
1837 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1838 dpdk_update_link_state (xd, now);
1847 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1848 .function = dpdk_process,
1849 .type = VLIB_NODE_TYPE_PROCESS,
1850 .name = "dpdk-process",
1851 .process_log2_n_stack_bytes = 17,
1855 static clib_error_t *
1856 dpdk_init (vlib_main_t * vm)
1858 dpdk_main_t *dm = &dpdk_main;
1859 clib_error_t *error = 0;
1861 /* verify that structs are cacheline aligned */
1862 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1863 "Cache line marker must be 1st element in dpdk_device_t");
1864 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1865 CLIB_CACHE_LINE_BYTES,
1866 "Data in cache line 0 is bigger than cache line size");
1867 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1868 "Cache line marker must be 1st element in frame_queue_trace_t");
1869 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1870 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1872 dpdk_cli_reference ();
1875 dm->vnet_main = vnet_get_main ();
1876 dm->conf = &dpdk_config_main;
1878 dm->conf->nchannels = 4;
1879 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1881 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1882 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1883 VLIB_BUFFER_EXT_HDR_VALID |
1884 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1885 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1887 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1888 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1890 dm->log_default = vlib_log_register_class ("dpdk", 0);
1891 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1892 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
1897 VLIB_INIT_FUNCTION (dpdk_init);
1900 * fd.io coding-style-patch-verification: ON
1903 * eval: (c-set-style "gnu")