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>
39 #include <sys/mount.h>
44 #include <dpdk/device/dpdk_priv.h>
46 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
48 dpdk_main_t dpdk_main;
49 dpdk_config_main_t dpdk_config_main;
51 #define LINK_STATE_ELOGS 0
53 /* Port configuration, mildly modified Intel app values */
55 static dpdk_port_type_t
56 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
59 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
60 return VNET_DPDK_PORT_TYPE_ETH_100G;
61 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
62 return VNET_DPDK_PORT_TYPE_ETH_56G;
63 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
64 return VNET_DPDK_PORT_TYPE_ETH_50G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
66 return VNET_DPDK_PORT_TYPE_ETH_40G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
68 return VNET_DPDK_PORT_TYPE_ETH_25G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
70 return VNET_DPDK_PORT_TYPE_ETH_20G;
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_5G)
74 return VNET_DPDK_PORT_TYPE_ETH_5G;
75 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
76 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
77 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
78 return VNET_DPDK_PORT_TYPE_ETH_1G;
80 return VNET_DPDK_PORT_TYPE_UNKNOWN;
83 static dpdk_port_type_t
84 port_type_from_link_speed (u32 link_speed)
88 case ETH_SPEED_NUM_1G:
89 return VNET_DPDK_PORT_TYPE_ETH_1G;
90 case ETH_SPEED_NUM_2_5G:
91 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
92 case ETH_SPEED_NUM_5G:
93 return VNET_DPDK_PORT_TYPE_ETH_5G;
94 case ETH_SPEED_NUM_10G:
95 return VNET_DPDK_PORT_TYPE_ETH_10G;
96 case ETH_SPEED_NUM_20G:
97 return VNET_DPDK_PORT_TYPE_ETH_20G;
98 case ETH_SPEED_NUM_25G:
99 return VNET_DPDK_PORT_TYPE_ETH_25G;
100 case ETH_SPEED_NUM_40G:
101 return VNET_DPDK_PORT_TYPE_ETH_40G;
102 case ETH_SPEED_NUM_50G:
103 return VNET_DPDK_PORT_TYPE_ETH_50G;
104 case ETH_SPEED_NUM_56G:
105 return VNET_DPDK_PORT_TYPE_ETH_56G;
106 case ETH_SPEED_NUM_100G:
107 return VNET_DPDK_PORT_TYPE_ETH_100G;
109 return VNET_DPDK_PORT_TYPE_UNKNOWN;
114 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
116 dpdk_main_t *dm = &dpdk_main;
117 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
118 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
122 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
123 /* set to L3/non-promisc mode */
124 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
126 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
127 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
129 case ETHERNET_INTERFACE_FLAG_MTU:
130 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
131 dpdk_device_setup (xd);
137 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
139 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
140 rte_eth_promiscuous_enable (xd->port_id);
142 rte_eth_promiscuous_disable (xd->port_id);
149 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
151 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
154 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
155 return value 1: exist.
156 return value 0: not exist.
164 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
165 DIR *dir_cache = opendir (sys_cache_dir);
167 if (dir_cache == NULL)
170 while ((dp = readdir (dir_cache)) != NULL)
172 if (dp->d_type == DT_DIR)
175 int level_cache = -1;
177 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
178 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
179 clib_error_free (err);
181 if (level_cache == 3)
183 closedir (dir_cache);
189 if (dir_cache != NULL)
190 closedir (dir_cache);
196 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
198 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
199 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
200 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
201 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
204 static clib_error_t *
205 dpdk_lib_init (dpdk_main_t * dm)
208 u32 mtu, max_rx_frame;
211 vlib_main_t *vm = vlib_get_main ();
212 vlib_thread_main_t *tm = vlib_get_thread_main ();
213 vnet_device_main_t *vdm = &vnet_device_main;
214 vnet_sw_interface_t *sw;
215 vnet_hw_interface_t *hi;
217 vlib_pci_addr_t last_pci_addr;
218 u32 last_pci_addr_port = 0;
219 u8 af_packet_instance_num = 0;
220 last_pci_addr.as_u32 = ~0;
222 nports = rte_eth_dev_count_avail ();
226 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
230 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
232 if (dm->conf->enable_tcp_udp_checksum)
233 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
234 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
236 /* vlib_buffer_t template */
237 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
238 CLIB_CACHE_LINE_BYTES);
239 for (i = 0; i < tm->n_vlib_mains; i++)
241 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
242 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
243 ptd->buffer_template.flags = dm->buffer_flags_template;
244 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
248 RTE_ETH_FOREACH_DEV(i)
252 struct rte_eth_dev_info dev_info;
253 struct rte_pci_device *pci_dev;
254 struct rte_vmbus_device *vmbus_dev;
255 dpdk_portid_t next_port_id;
256 dpdk_device_config_t *devconf = 0;
257 vlib_pci_addr_t pci_addr;
258 vlib_vmbus_addr_t vmbus_addr;
261 if (!rte_eth_dev_is_valid_port(i))
264 rte_eth_dev_info_get (i, &dev_info);
266 if (dev_info.device == 0)
268 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
269 dev_info.driver_name);
273 pci_dev = dpdk_get_pci_device (&dev_info);
277 pci_addr.domain = pci_dev->addr.domain;
278 pci_addr.bus = pci_dev->addr.bus;
279 pci_addr.slot = pci_dev->addr.devid;
280 pci_addr.function = pci_dev->addr.function;
281 p = hash_get (dm->conf->device_config_index_by_pci_addr,
285 vmbus_dev = dpdk_get_vmbus_device (&dev_info);
289 unformat_input_t input_vmbus;
291 unformat_init_vector (&input_vmbus, (u8 *) dev_info.device->name);
292 if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr,
295 p = mhash_get (&dm->conf->device_config_index_by_vmbus_addr,
302 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
303 /* If device is blacklisted, we should skip it */
304 if (devconf->is_blacklisted)
310 devconf = &dm->conf->default_devconf;
312 /* Create vnet interface */
313 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
314 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
315 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
316 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
319 xd->name = devconf->name;
322 /* Handle representor devices that share the same PCI ID */
323 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
325 if (dev_info.switch_info.port_id != (uint16_t)-1)
326 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
328 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
330 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
332 struct rte_eth_dev_info di = { 0 };
333 struct rte_pci_device *next_pci_dev;
334 rte_eth_dev_info_get (next_port_id, &di);
335 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
337 pci_addr.as_u32 != last_pci_addr.as_u32 &&
338 memcmp (&pci_dev->addr, &next_pci_dev->addr,
339 sizeof (struct rte_pci_addr)) == 0)
341 xd->interface_name_suffix = format (0, "0");
342 last_pci_addr.as_u32 = pci_addr.as_u32;
343 last_pci_addr_port = i;
345 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
347 xd->interface_name_suffix =
348 format (0, "%u", i - last_pci_addr_port);
352 last_pci_addr.as_u32 = ~0;
356 last_pci_addr.as_u32 = ~0;
358 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
359 sizeof (struct rte_eth_txconf));
361 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
363 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
364 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
367 if (dm->conf->enable_tcp_udp_checksum)
369 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
370 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
371 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
372 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
375 if (dm->conf->no_multi_seg)
377 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
378 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
379 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
383 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
384 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
385 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
386 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
389 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
391 if (devconf->num_tx_queues > 0
392 && devconf->num_tx_queues < xd->tx_q_used)
393 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
395 if (devconf->num_rx_queues > 1
396 && dev_info.max_rx_queues >= devconf->num_rx_queues)
398 xd->rx_q_used = devconf->num_rx_queues;
399 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
400 if (devconf->rss_fn == 0)
401 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
402 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
405 u64 unsupported_bits;
406 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
407 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
408 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
409 if (unsupported_bits)
410 dpdk_log_warn ("Unsupported RSS hash functions: %U",
411 format_dpdk_rss_hf_name, unsupported_bits);
413 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
414 dev_info.flow_type_rss_offloads;
419 vec_validate_aligned (xd->rx_queues, xd->rx_q_used - 1,
420 CLIB_CACHE_LINE_BYTES);
422 xd->flags |= DPDK_DEVICE_FLAG_PMD;
424 /* workaround for drivers not setting driver_name */
425 if ((!dev_info.driver_name) && (pci_dev))
426 dev_info.driver_name = pci_dev->driver->driver.name;
428 ASSERT (dev_info.driver_name);
434 #define _(s,f) else if (dev_info.driver_name && \
435 !strcmp(dev_info.driver_name, s)) \
436 xd->pmd = VNET_DPDK_PMD_##f;
442 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
444 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
445 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
446 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
450 /* Drivers with valid speed_capa set */
451 case VNET_DPDK_PMD_I40E:
452 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
453 case VNET_DPDK_PMD_E1000EM:
454 case VNET_DPDK_PMD_IGB:
455 case VNET_DPDK_PMD_IGC:
456 case VNET_DPDK_PMD_IXGBE:
457 case VNET_DPDK_PMD_ICE:
458 xd->port_type = port_type_from_speed_capa (&dev_info);
459 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
460 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
461 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
462 VNET_FLOW_ACTION_BUFFER_ADVANCE |
463 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
464 VNET_FLOW_ACTION_RSS;
466 if (dm->conf->no_tx_checksum_offload == 0)
468 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
469 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
471 DPDK_DEVICE_FLAG_TX_OFFLOAD |
472 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
475 xd->port_conf.intr_conf.rxq = 1;
477 case VNET_DPDK_PMD_CXGBE:
478 case VNET_DPDK_PMD_MLX4:
479 case VNET_DPDK_PMD_MLX5:
480 case VNET_DPDK_PMD_QEDE:
481 case VNET_DPDK_PMD_BNXT:
482 xd->port_type = port_type_from_speed_capa (&dev_info);
486 case VNET_DPDK_PMD_I40EVF:
487 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
488 case VNET_DPDK_PMD_IGBVF:
489 case VNET_DPDK_PMD_IXGBEVF:
490 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
491 if (dm->conf->no_tx_checksum_offload == 0)
493 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
494 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
496 DPDK_DEVICE_FLAG_TX_OFFLOAD |
497 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
499 /* DPDK bug in multiqueue... */
500 /* xd->port_conf.intr_conf.rxq = 1; */
504 case VNET_DPDK_PMD_IAVF:
505 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
506 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
507 xd->supported_flow_actions =
508 VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
509 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
510 VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT |
511 VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS;
513 if (dm->conf->no_tx_checksum_offload == 0)
515 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
516 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
518 DPDK_DEVICE_FLAG_TX_OFFLOAD |
519 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
521 /* DPDK bug in multiqueue... */
522 /* xd->port_conf.intr_conf.rxq = 1; */
525 case VNET_DPDK_PMD_THUNDERX:
526 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
528 if (dm->conf->no_tx_checksum_offload == 0)
530 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
531 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
532 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
536 case VNET_DPDK_PMD_ENA:
537 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
538 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
539 xd->port_conf.intr_conf.rxq = 1;
542 case VNET_DPDK_PMD_DPAA2:
543 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
547 case VNET_DPDK_PMD_ENIC:
549 struct rte_eth_link l;
550 rte_eth_link_get_nowait (i, &l);
551 xd->port_type = port_type_from_link_speed (l.link_speed);
552 if (dm->conf->enable_tcp_udp_checksum)
553 dpdk_enable_l4_csum_offload (xd);
557 /* Intel Red Rock Canyon */
558 case VNET_DPDK_PMD_FM10K:
559 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
563 case VNET_DPDK_PMD_VIRTIO:
564 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
565 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
566 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
567 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
571 case VNET_DPDK_PMD_VMXNET3:
572 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
573 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
576 case VNET_DPDK_PMD_AF_PACKET:
577 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
578 xd->af_packet_instance_num = af_packet_instance_num++;
581 case VNET_DPDK_PMD_VIRTIO_USER:
582 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
585 case VNET_DPDK_PMD_VHOST_ETHER:
586 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
589 case VNET_DPDK_PMD_LIOVF_ETHER:
590 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
593 case VNET_DPDK_PMD_FAILSAFE:
594 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
595 xd->port_conf.intr_conf.lsc = 1;
598 case VNET_DPDK_PMD_NETVSC:
600 struct rte_eth_link l;
601 rte_eth_link_get_nowait (i, &l);
602 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
607 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
610 if (devconf->num_rx_desc)
611 xd->nb_rx_desc = devconf->num_rx_desc;
614 /* If num_rx_desc is not specified by VPP user, the current CPU is working
615 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
616 from original 1024 to help reduce TLB misses.
618 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
619 && check_l3cache() == 0)
620 xd->nb_rx_desc = 512;
623 if (devconf->num_tx_desc)
624 xd->nb_tx_desc = devconf->num_tx_desc;
627 /* If num_tx_desc is not specified by VPP user, the current CPU is working
628 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
629 from original 1024 to help reduce TLB misses.
631 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
632 && check_l3cache() == 0)
633 xd->nb_tx_desc = 512;
637 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
639 f64 now = vlib_time_now (vm);
641 rnd = (u32) (now * 1e6);
642 rnd = random_u32 (&rnd);
643 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
648 rte_eth_macaddr_get (i, (void *) addr);
651 xd->device_index = xd - dm->devices;
652 xd->per_interface_next_index = ~0;
654 /* assign interface to input thread */
657 error = ethernet_register_interface
658 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
659 /* ethernet address */ addr,
660 &xd->hw_if_index, dpdk_flag_change);
665 * Ensure default mtu is not > the mtu read from the hardware.
666 * Otherwise rte_eth_dev_configure() will fail and the port will
668 * Calculate max_frame_size and mtu supported by NIC
670 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
673 * This device does not support the platforms's max frame
674 * size. Use it's advertised mru instead.
676 max_rx_frame = dev_info.max_rx_pktlen;
677 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
681 /* VPP treats MTU and max_rx_pktlen both equal to
682 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
683 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
685 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
686 sizeof (ethernet_header_t)))
688 mtu = ETHERNET_MAX_PACKET_BYTES;
689 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
692 * Some platforms do not account for Ethernet FCS (4 bytes) in
693 * MTU calculations. To interop with them increase mru but only
694 * if the device's settings can support it.
696 if (dpdk_port_crc_strip_enabled (xd) &&
697 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
698 sizeof (ethernet_header_t) +
706 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
707 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
709 if (dpdk_port_crc_strip_enabled (xd) &&
710 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
717 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
719 /* failsafe device numerables are reported with active device only,
720 * need to query the mtu for current device setup to overwrite
724 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
727 max_rx_frame = mtu + sizeof (ethernet_header_t);
729 if (dpdk_port_crc_strip_enabled (xd))
736 /*Set port rxmode config */
737 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
739 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
740 xd->sw_if_index = sw->sw_if_index;
741 vnet_hw_if_set_input_node (dm->vnet_main, xd->hw_if_index,
742 dpdk_input_node.index);
744 if (devconf->workers)
748 clib_bitmap_foreach (i, devconf->workers) {
749 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
750 rxq->queue_index = vnet_hw_if_register_rx_queue (
751 dm->vnet_main, xd->hw_if_index, q++,
752 vdm->first_worker_thread_index + i);
756 for (q = 0; q < xd->rx_q_used; q++)
758 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
759 rxq->queue_index = vnet_hw_if_register_rx_queue (
760 dm->vnet_main, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
763 vnet_hw_if_update_runtime_data (dm->vnet_main, xd->hw_if_index);
765 /*Get vnet hardware interface */
766 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
768 /*Override default max_packet_bytes and max_supported_bytes set in
769 * ethernet_register_interface() above*/
772 hi->max_packet_bytes = mtu;
773 hi->max_supported_packet_bytes = max_rx_frame;
774 hi->numa_node = xd->cpu_socket;
776 /* Indicate ability to support L3 DMAC filtering and
777 * initialize interface to L3 non-promisc mode */
778 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER;
779 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
780 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
783 if (dm->conf->no_tx_checksum_offload == 0)
784 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
786 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_CKSUM |
787 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_TCP_CKSUM |
788 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_CKSUM;
790 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
792 /*tcp_udp checksum must be enabled*/
793 if ((dm->conf->enable_tcp_udp_checksum) &&
794 (hi->caps & VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM))
796 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO |
797 VNET_HW_INTERFACE_CAP_SUPPORTS_UDP_GSO;
798 xd->port_conf.txmode.offloads |=
799 DEV_TX_OFFLOAD_TCP_TSO | DEV_TX_OFFLOAD_UDP_TSO;
802 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
806 dpdk_device_setup (xd);
808 /* rss queues should be configured after dpdk_device_setup() */
809 if ((hi != NULL) && (devconf->rss_queues != NULL))
811 if (vnet_hw_interface_set_rss_queues
812 (vnet_get_main (), hi, devconf->rss_queues))
814 clib_warning ("%s: Failed to set rss queues", hi->name);
818 if (vec_len (xd->errors))
819 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
820 format_dpdk_device_name, i,
821 format_dpdk_device_errors, xd);
824 * A note on Cisco VIC (PMD_ENIC) and VLAN:
826 * With Cisco VIC vNIC, every ingress packet is tagged. On a
827 * trunk vNIC (C series "standalone" server), packets on no VLAN
828 * are tagged with vlan 0. On an access vNIC (standalone or B
829 * series "blade" server), packets on the default/native VLAN
830 * are tagged with that vNIC's VLAN. VPP expects these packets
831 * to be untagged, and previously enabled VLAN strip on VIC by
832 * default. But it also broke vlan sub-interfaces.
834 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
835 * mode, which removes tags from these packets. VPP now includes
836 * a local patch for the enic driver to use this untag mode, so
837 * enabling vlan stripping is no longer needed. In future, the
838 * driver + dpdk will have an API to set the mode after
839 * rte_eal_init. Then, this note and local patch will be
844 * VLAN stripping: default to VLAN strip disabled, unless specified
845 * otherwise in the startup config.
848 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
849 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
851 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
852 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
853 dpdk_log_info ("VLAN strip enabled for interface\n");
855 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
856 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
860 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
862 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
863 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
864 dpdk_log_warn ("set VLAN offload failed\n");
866 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
870 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
871 - sizeof (ethernet_header_t);
873 dpdk_log_warn ("hi NULL");
875 if (dm->conf->no_multi_seg)
876 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
878 rte_eth_dev_set_mtu (xd->port_id, mtu);
887 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
889 vlib_main_t *vm = vlib_get_main ();
892 int num_whitelisted = vec_len (conf->dev_confs);
893 vlib_pci_device_info_t *d = 0;
894 vlib_pci_addr_t *addr = 0, *addrs;
897 addrs = vlib_pci_get_all_dev_addrs ();
899 vec_foreach (addr, addrs)
901 dpdk_device_config_t * devconf = 0;
902 vec_reset_length (pci_addr);
903 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
906 vlib_pci_free_device_info (d);
909 d = vlib_pci_get_device_info (vm, addr, &error);
912 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
913 clib_error_free (error);
917 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
922 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
930 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
933 /* Enforce Device blacklist by vendor and device */
934 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
937 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
938 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
939 if (d->vendor_id == vendor && d->device_id == device)
942 * Expected case: device isn't whitelisted,
947 /* Device is blacklisted */
948 pool_get (conf->dev_confs, devconf);
949 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
950 devconf - conf->dev_confs);
951 devconf->pci_addr.as_u32 = addr->as_u32;
952 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
953 devconf->is_blacklisted = 1;
956 else /* explicitly whitelisted, ignore the device blacklist */
962 if (d->vendor_id == 0x1af4 &&
963 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
964 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
967 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
970 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
971 * the default is to put it in the blacklist.
975 pool_get (conf->dev_confs, devconf);
976 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
977 devconf - conf->dev_confs);
978 devconf->pci_addr.as_u32 = addr->as_u32;
979 devconf->is_blacklisted = 1;
982 /* all Intel network devices */
983 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
985 /* all Intel QAT devices VFs */
986 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
987 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
988 d->device_id == 0x37c9 || d->device_id == 0x6f55))
991 else if (d->vendor_id == 0x1137 &&
992 (d->device_id == 0x0043 || d->device_id == 0x0071))
995 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
997 /* Amazon Elastic Network Adapter */
998 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
1000 /* Cavium Network Adapter */
1001 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
1003 /* Cavium FastlinQ QL41000 Series */
1004 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
1006 /* Mellanox CX3, CX3VF */
1007 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
1011 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
1012 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
1016 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
1017 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
1021 /* Broadcom NetXtreme S, and E series only */
1022 else if (d->vendor_id == 0x14e4 &&
1023 ((d->device_id >= 0x16c0 &&
1024 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1025 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1026 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1027 d->device_id != 0x170d && d->device_id != 0x170c &&
1028 d->device_id != 0x170e && d->device_id != 0x1712 &&
1029 d->device_id != 0x1713) ||
1030 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1031 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1032 d->device_id == 0x1609 || d->device_id == 0x1614)))
1036 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1037 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1042 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1048 pool_get (conf->dev_confs, devconf);
1049 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1050 devconf - conf->dev_confs);
1051 devconf->pci_addr.as_u32 = addr->as_u32;
1053 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1054 devconf->is_blacklisted = 1;
1055 clib_error_report (error);
1059 vec_free (pci_addr);
1060 vlib_pci_free_device_info (d);
1064 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1066 clib_error_t *error;
1067 vlib_vmbus_addr_t *addrs, *addr = 0;
1068 int num_whitelisted = vec_len (conf->dev_confs);
1071 addrs = vlib_vmbus_get_all_dev_addrs ();
1074 vec_foreach (addr, addrs)
1076 dpdk_device_config_t *devconf = 0;
1077 if (num_whitelisted)
1080 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
1083 /* No devices blacklisted, but have whitelisted. blacklist all
1084 * non-whitelisted */
1085 pool_get (conf->dev_confs, devconf);
1086 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1087 devconf - conf->dev_confs, 0);
1088 devconf->vmbus_addr = *addr;
1089 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1090 devconf->is_blacklisted = 1;
1095 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1098 /* Enforce Device blacklist by vmbus_addr */
1099 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1101 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
1102 vlib_vmbus_addr_t *a2 = addr;
1103 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
1107 /* Device not whitelisted */
1108 pool_get (conf->dev_confs, devconf);
1109 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1110 devconf - conf->dev_confs, 0);
1111 devconf->vmbus_addr = *addr;
1112 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1113 devconf->is_blacklisted = 1;
1123 error = vlib_vmbus_bind_to_uio (addr);
1128 pool_get (conf->dev_confs, devconf);
1129 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1130 devconf - conf->dev_confs, 0);
1131 devconf->vmbus_addr = *addr;
1133 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1134 devconf->is_blacklisted = 1;
1135 clib_error_report (error);
1142 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
1144 uword *max_simd_bitwidth = va_arg (*va, uword *);
1146 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1148 if (!unformat (input, "%u", max_simd_bitwidth))
1151 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
1152 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
1160 static clib_error_t *
1161 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1162 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1165 clib_error_t *error = 0;
1167 dpdk_device_config_t *devconf = 0;
1168 unformat_input_t sub_input;
1172 devconf = &conf->default_devconf;
1174 else if (addr_type == VNET_DEV_ADDR_PCI)
1176 p = hash_get (conf->device_config_index_by_pci_addr,
1177 ((vlib_pci_addr_t *) (addr))->as_u32);
1181 pool_get (conf->dev_confs, devconf);
1182 hash_set (conf->device_config_index_by_pci_addr,
1183 ((vlib_pci_addr_t *) (addr))->as_u32,
1184 devconf - conf->dev_confs);
1187 return clib_error_return (0,
1188 "duplicate configuration for PCI address %U",
1189 format_vlib_pci_addr, addr);
1191 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1193 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
1194 (vlib_vmbus_addr_t *) (addr));
1198 pool_get (conf->dev_confs, devconf);
1199 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1200 devconf - conf->dev_confs, 0);
1203 return clib_error_return (
1204 0, "duplicate configuration for VMBUS address %U",
1205 format_vlib_vmbus_addr, addr);
1208 if (addr_type == VNET_DEV_ADDR_PCI)
1210 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1211 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1212 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1214 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1216 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1217 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1218 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1224 unformat_skip_white_space (input);
1225 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1227 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1229 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1231 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1233 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1235 else if (unformat (input, "name %s", &devconf->name))
1237 else if (unformat (input, "workers %U", unformat_bitmap_list,
1242 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1244 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1248 else if (unformat (input, "vlan-strip-offload off"))
1249 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1250 else if (unformat (input, "vlan-strip-offload on"))
1251 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1252 else if (unformat (input, "tso on"))
1254 devconf->tso = DPDK_DEVICE_TSO_ON;
1256 else if (unformat (input, "tso off"))
1258 devconf->tso = DPDK_DEVICE_TSO_OFF;
1260 else if (unformat (input, "devargs %s", &devconf->devargs))
1262 else if (unformat (input, "rss-queues %U",
1263 unformat_bitmap_list, &devconf->rss_queues))
1267 error = clib_error_return (0, "unknown input `%U'",
1268 format_unformat_error, input);
1276 if (devconf->workers && devconf->num_rx_queues == 0)
1277 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1278 else if (devconf->workers &&
1279 clib_bitmap_count_set_bits (devconf->workers) !=
1280 devconf->num_rx_queues)
1281 error = clib_error_return (0,
1282 "%U: number of worker threads must be "
1283 "equal to number of rx queues",
1284 format_vlib_pci_addr, addr);
1289 static clib_error_t *
1290 dpdk_log_read_ready (clib_file_t * uf)
1292 unformat_input_t input;
1299 uword len = vec_len (s);
1300 vec_resize (s, len + n_try);
1302 n = read (uf->file_descriptor, s + len, n_try);
1303 if (n < 0 && errno != EAGAIN)
1304 return clib_error_return_unix (0, "read");
1305 _vec_len (s) = len + (n < 0 ? 0 : n);
1308 unformat_init_vector (&input, s);
1310 while (unformat_user (&input, unformat_line, &line))
1312 dpdk_log_notice ("%v", line);
1316 unformat_free (&input);
1320 static clib_error_t *
1321 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1323 clib_error_t *error = 0;
1324 dpdk_config_main_t *conf = &dpdk_config_main;
1325 vlib_thread_main_t *tm = vlib_get_thread_main ();
1326 dpdk_device_config_t *devconf;
1327 vlib_pci_addr_t pci_addr = { 0 };
1328 vlib_vmbus_addr_t vmbus_addr = { 0 };
1329 unformat_input_t sub_input;
1330 uword default_hugepage_sz, x;
1333 int num_whitelisted = 0;
1334 int eal_no_hugetlb = 0;
1339 u8 *huge_dir_path = 0;
1340 u32 vendor, device, domain, bus, func;
1343 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1345 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1346 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
1347 sizeof (vlib_vmbus_addr_t));
1349 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1351 /* Prime the pump */
1352 if (unformat (input, "no-hugetlb"))
1354 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1357 else if (unformat (input, "telemetry"))
1358 conf->enable_telemetry = 1;
1360 else if (unformat (input, "enable-tcp-udp-checksum"))
1361 conf->enable_tcp_udp_checksum = 1;
1363 else if (unformat (input, "no-tx-checksum-offload"))
1364 conf->no_tx_checksum_offload = 1;
1366 else if (unformat (input, "decimal-interface-names"))
1367 conf->interface_name_format_decimal = 1;
1369 else if (unformat (input, "no-multi-seg"))
1370 conf->no_multi_seg = 1;
1371 else if (unformat (input, "max-simd-bitwidth %U",
1372 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
1374 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1378 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1385 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1386 unformat_vlib_cli_sub_input, &sub_input))
1388 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1396 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1399 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1406 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1407 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1409 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1417 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1421 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1428 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1429 conf->nchannels_set_manually = 0;
1430 else if (unformat (input, "num-crypto-mbufs %d",
1431 &conf->num_crypto_mbufs))
1433 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1435 else if (unformat (input, "socket-mem %s", &socket_mem))
1437 else if (unformat (input, "no-pci"))
1440 tmp = format (0, "--no-pci%c", 0);
1441 vec_add1 (conf->eal_init_args, tmp);
1443 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1446 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1450 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1452 tmp = format (0, "-b%c", 0);
1453 vec_add1 (conf->eal_init_args, tmp);
1455 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1456 vec_add1 (conf->eal_init_args, tmp);
1458 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1460 u32 blacklist_entry;
1461 if (vendor > 0xFFFF)
1462 return clib_error_return (0, "blacklist PCI vendor out of range");
1463 if (device > 0xFFFF)
1464 return clib_error_return (0, "blacklist PCI device out of range");
1465 blacklist_entry = (vendor << 16) | (device & 0xffff);
1466 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1469 else if (unformat (input, "no-vmbus"))
1472 tmp = format (0, "--no-vmbus%c", 0);
1473 vec_add1 (conf->eal_init_args, tmp);
1477 else if (unformat(input, #a)) \
1479 tmp = format (0, "--%s%c", #a, 0); \
1480 vec_add1 (conf->eal_init_args, tmp); \
1482 foreach_eal_double_hyphen_predicate_arg
1485 else if (unformat(input, #a " %s", &s)) \
1487 if (!strncmp(#a, "file-prefix", 11)) \
1489 tmp = format (0, "--%s%c", #a, 0); \
1490 vec_add1 (conf->eal_init_args, tmp); \
1492 if (!strncmp(#a, "vdev", 4)) \
1493 if (strstr((char*)s, "af_packet")) \
1494 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1495 vec_add1 (conf->eal_init_args, s); \
1497 foreach_eal_double_hyphen_arg
1500 else if (unformat(input, #a " %s", &s)) \
1502 tmp = format (0, "-%s%c", #b, 0); \
1503 vec_add1 (conf->eal_init_args, tmp); \
1505 vec_add1 (conf->eal_init_args, s); \
1507 foreach_eal_single_hyphen_arg
1510 else if (unformat(input, #a " %s", &s)) \
1512 tmp = format (0, "-%s%c", #b, 0); \
1513 vec_add1 (conf->eal_init_args, tmp); \
1515 vec_add1 (conf->eal_init_args, s); \
1516 conf->a##_set_manually = 1; \
1518 foreach_eal_single_hyphen_mandatory_arg
1520 else if (unformat (input, "default"))
1523 else if (unformat_skip_white_space (input))
1527 error = clib_error_return (0, "unknown input `%U'",
1528 format_unformat_error, input);
1533 if (!conf->uio_driver_name)
1534 conf->uio_driver_name = format (0, "auto%c", 0);
1536 if (eal_no_hugetlb == 0)
1538 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1540 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1543 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1547 /* preallocate at least 16MB of hugepages per socket,
1548 if more is needed it is up to consumer to preallocate more */
1549 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1550 n_pages /= default_hugepage_sz;
1552 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1553 clib_error_report (e);
1558 /* on/off dpdk's telemetry thread */
1559 if (conf->enable_telemetry == 0)
1561 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1566 tmp = format (0, "--file-prefix%c", 0);
1567 vec_add1 (conf->eal_init_args, tmp);
1568 tmp = format (0, "vpp%c", 0);
1569 vec_add1 (conf->eal_init_args, tmp);
1575 /* I'll bet that -c and -n must be the first and second args... */
1576 if (!conf->coremask_set_manually)
1578 vlib_thread_registration_t *tr;
1579 uword *coremask = 0;
1582 /* main thread core */
1583 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1585 for (i = 0; i < vec_len (tm->registrations); i++)
1587 tr = tm->registrations[i];
1588 coremask = clib_bitmap_or (coremask, tr->coremask);
1591 vec_insert (conf->eal_init_args, 2, 1);
1592 conf->eal_init_args[1] = (u8 *) "-c";
1593 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1594 conf->eal_init_args[2] = tmp;
1595 clib_bitmap_free (coremask);
1598 if (!conf->nchannels_set_manually)
1600 vec_insert (conf->eal_init_args, 2, 3);
1601 conf->eal_init_args[3] = (u8 *) "-n";
1602 tmp = format (0, "%d", conf->nchannels);
1603 vec_terminate_c_string (tmp);
1604 conf->eal_init_args[4] = tmp;
1607 if (no_pci == 0 && geteuid () == 0)
1608 dpdk_bind_devices_to_uio (conf);
1610 if (no_vmbus == 0 && geteuid () == 0)
1611 dpdk_bind_vmbus_devices_to_uio (conf);
1614 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1615 devconf->x = conf->default_devconf.x ;
1618 pool_foreach (devconf, conf->dev_confs) {
1620 /* default per-device config items */
1621 foreach_dpdk_device_config_item
1623 /* copy vlan_strip config from default device */
1624 _ (vlan_strip_offload)
1626 /* copy tso config from default device */
1629 /* copy tso config from default device */
1632 /* copy rss_queues config from default device */
1635 /* add DPDK EAL whitelist/blacklist entry */
1636 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1637 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1639 tmp = format (0, "-a%c", 0);
1640 vec_add1 (conf->eal_init_args, tmp);
1641 if (devconf->devargs)
1643 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1644 &devconf->pci_addr, devconf->devargs, 0);
1648 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1650 vec_add1 (conf->eal_init_args, tmp);
1652 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1653 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1655 tmp = format (0, "-b%c", 0);
1656 vec_add1 (conf->eal_init_args, tmp);
1657 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1658 vec_add1 (conf->eal_init_args, tmp);
1665 /* set master-lcore */
1666 tmp = format (0, "--main-lcore%c", 0);
1667 vec_add1 (conf->eal_init_args, tmp);
1668 tmp = format (0, "%u%c", tm->main_lcore, 0);
1669 vec_add1 (conf->eal_init_args, tmp);
1673 clib_warning ("socket-mem argument is deprecated");
1675 /* NULL terminate the "argv" vector, in case of stupidity */
1676 vec_add1 (conf->eal_init_args, 0);
1677 _vec_len (conf->eal_init_args) -= 1;
1679 /* Set up DPDK eal and packet mbuf pool early. */
1681 int log_fds[2] = { 0 };
1682 if (pipe (log_fds) == 0)
1684 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1686 FILE *f = fdopen (log_fds[1], "a");
1687 if (f && rte_openlog_stream (f) == 0)
1689 clib_file_t t = { 0 };
1690 t.read_function = dpdk_log_read_ready;
1691 t.file_descriptor = log_fds[0];
1692 t.description = format (0, "DPDK logging pipe");
1693 clib_file_add (&file_main, &t);
1703 vm = vlib_get_main ();
1705 /* make copy of args as rte_eal_init tends to mess up with arg array */
1706 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1707 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1708 conf->eal_init_args[i]);
1710 vec_terminate_c_string (conf->eal_init_args_str);
1712 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1713 ret = rte_eal_init (vec_len (conf->eal_init_args),
1714 (char **) conf->eal_init_args);
1716 /* enable the AVX-512 vPMDs in DPDK */
1717 if (clib_cpu_supports_avx512_bitalg () &&
1718 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1719 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1720 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1721 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1722 DPDK_MAX_SIMD_BITWIDTH_256 ?
1726 /* lazy umount hugepages */
1727 umount2 ((char *) huge_dir_path, MNT_DETACH);
1728 rmdir ((char *) huge_dir_path);
1729 vec_free (huge_dir_path);
1732 return clib_error_return (0, "rte_eal_init returned %d", ret);
1734 /* main thread 1st */
1735 if ((error = dpdk_buffer_pools_create (vm)))
1742 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1745 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1747 vnet_main_t *vnm = vnet_get_main ();
1748 struct rte_eth_link prev_link = xd->link;
1750 u8 hw_flags_chg = 0;
1752 /* only update link state for PMD interfaces */
1753 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1756 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1757 clib_memset (&xd->link, 0, sizeof (xd->link));
1758 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1760 if (LINK_STATE_ELOGS)
1762 ELOG_TYPE_DECLARE (e) =
1765 "update-link-state: sw_if_index %d, admin_up %d,"
1766 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1775 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1776 ed->sw_if_index = xd->sw_if_index;
1777 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1778 ed->old_link_state = (u8)
1779 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1780 ed->new_link_state = (u8) xd->link.link_status;
1783 if ((xd->link.link_duplex != prev_link.link_duplex))
1786 switch (xd->link.link_duplex)
1788 case ETH_LINK_HALF_DUPLEX:
1789 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1791 case ETH_LINK_FULL_DUPLEX:
1792 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1798 if (xd->link.link_speed != prev_link.link_speed)
1799 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1800 xd->link.link_speed * 1000);
1802 if (xd->link.link_status != prev_link.link_status)
1806 if (xd->link.link_status)
1807 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1812 if (LINK_STATE_ELOGS)
1814 ELOG_TYPE_DECLARE (e) =
1817 "update-link-state: sw_if_index %d, new flags %d",.format_args
1825 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1826 ed->sw_if_index = xd->sw_if_index;
1827 ed->flags = hw_flags;
1829 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1834 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1836 clib_error_t *error;
1837 dpdk_main_t *dm = &dpdk_main;
1839 vlib_thread_main_t *tm = vlib_get_thread_main ();
1841 error = dpdk_lib_init (dm);
1844 clib_error_report (error);
1846 if (dpdk_cryptodev_init)
1848 error = dpdk_cryptodev_init (vm);
1851 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1853 clib_error_free (error);
1857 tm->worker_thread_release = 1;
1859 f64 now = vlib_time_now (vm);
1860 vec_foreach (xd, dm->devices)
1862 dpdk_update_link_state (xd, now);
1868 * check each time through the loop in case intervals are changed
1870 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1871 dm->link_state_poll_interval : dm->stat_poll_interval;
1873 vlib_process_wait_for_event_or_clock (vm, min_wait);
1875 if (dm->admin_up_down_in_progress)
1876 /* skip the poll if an admin up down is in progress (on any interface) */
1879 vec_foreach (xd, dm->devices)
1881 f64 now = vlib_time_now (vm);
1882 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1883 dpdk_update_counters (xd, now);
1884 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1885 dpdk_update_link_state (xd, now);
1894 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1895 .function = dpdk_process,
1896 .type = VLIB_NODE_TYPE_PROCESS,
1897 .name = "dpdk-process",
1898 .process_log2_n_stack_bytes = 17,
1902 static clib_error_t *
1903 dpdk_init (vlib_main_t * vm)
1905 dpdk_main_t *dm = &dpdk_main;
1906 clib_error_t *error = 0;
1908 /* verify that structs are cacheline aligned */
1909 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1910 "Cache line marker must be 1st element in dpdk_device_t");
1911 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1912 CLIB_CACHE_LINE_BYTES,
1913 "Data in cache line 0 is bigger than cache line size");
1914 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1915 "Cache line marker must be 1st element in frame_queue_trace_t");
1916 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1917 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1919 dpdk_cli_reference ();
1922 dm->vnet_main = vnet_get_main ();
1923 dm->conf = &dpdk_config_main;
1925 dm->conf->nchannels = 4;
1926 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1928 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1929 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1930 VLIB_BUFFER_EXT_HDR_VALID |
1931 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1932 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1934 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1935 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1937 dm->log_default = vlib_log_register_class ("dpdk", 0);
1938 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1939 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
1944 VLIB_INIT_FUNCTION (dpdk_init);
1947 * fd.io coding-style-patch-verification: ON
1950 * eval: (c-set-style "gnu")