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;
290 unformat_init_string (&input_vmbus, dev_info.device->name,
291 strlen (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,
298 unformat_free (&input_vmbus);
303 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
304 /* If device is blacklisted, we should skip it */
305 if (devconf->is_blacklisted)
311 devconf = &dm->conf->default_devconf;
313 /* Create vnet interface */
314 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
315 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
316 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
317 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
320 xd->name = devconf->name;
323 /* Handle representor devices that share the same PCI ID */
324 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
326 if (dev_info.switch_info.port_id != (uint16_t)-1)
327 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
329 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
331 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
333 struct rte_eth_dev_info di = { 0 };
334 struct rte_pci_device *next_pci_dev;
335 rte_eth_dev_info_get (next_port_id, &di);
336 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
338 pci_addr.as_u32 != last_pci_addr.as_u32 &&
339 memcmp (&pci_dev->addr, &next_pci_dev->addr,
340 sizeof (struct rte_pci_addr)) == 0)
342 xd->interface_name_suffix = format (0, "0");
343 last_pci_addr.as_u32 = pci_addr.as_u32;
344 last_pci_addr_port = i;
346 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
348 xd->interface_name_suffix =
349 format (0, "%u", i - last_pci_addr_port);
353 last_pci_addr.as_u32 = ~0;
357 last_pci_addr.as_u32 = ~0;
359 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
360 sizeof (struct rte_eth_txconf));
362 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
364 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
365 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
368 if (dm->conf->enable_tcp_udp_checksum)
370 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
371 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
372 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
373 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
374 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_IPV4_CKSUM)
375 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_IPV4_CKSUM;
377 if (dm->conf->enable_outer_checksum_offload)
379 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM)
380 xd->port_conf.txmode.offloads |=
381 DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
382 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM)
383 xd->port_conf.txmode.offloads |=
384 DEV_TX_OFFLOAD_OUTER_UDP_CKSUM;
388 if (dm->conf->enable_lro)
390 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_LRO)
392 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_LRO;
393 if (devconf->max_lro_pkt_size)
394 xd->port_conf.rxmode.max_lro_pkt_size =
395 devconf->max_lro_pkt_size;
397 xd->port_conf.rxmode.max_lro_pkt_size =
398 DPDK_MAX_LRO_SIZE_DEFAULT;
401 if (dm->conf->no_multi_seg)
403 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
404 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
405 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
409 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
410 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
411 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
412 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
415 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
417 if (devconf->num_tx_queues > 0
418 && devconf->num_tx_queues < xd->tx_q_used)
419 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
421 if (devconf->num_rx_queues > 1
422 && dev_info.max_rx_queues >= devconf->num_rx_queues)
424 xd->rx_q_used = devconf->num_rx_queues;
425 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
426 if (devconf->rss_fn == 0)
427 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
428 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
431 u64 unsupported_bits;
432 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
433 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
434 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
435 if (unsupported_bits)
436 dpdk_log_warn ("Unsupported RSS hash functions: %U",
437 format_dpdk_rss_hf_name, unsupported_bits);
439 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
440 dev_info.flow_type_rss_offloads;
445 vec_validate_aligned (xd->rx_queues, xd->rx_q_used - 1,
446 CLIB_CACHE_LINE_BYTES);
448 xd->flags |= DPDK_DEVICE_FLAG_PMD;
450 /* workaround for drivers not setting driver_name */
451 if ((!dev_info.driver_name) && (pci_dev))
452 dev_info.driver_name = pci_dev->driver->driver.name;
454 ASSERT (dev_info.driver_name);
460 #define _(s,f) else if (dev_info.driver_name && \
461 !strcmp(dev_info.driver_name, s)) \
462 xd->pmd = VNET_DPDK_PMD_##f;
468 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
470 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
471 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
472 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
476 /* Drivers with valid speed_capa set */
477 case VNET_DPDK_PMD_I40E:
478 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
479 case VNET_DPDK_PMD_E1000EM:
480 case VNET_DPDK_PMD_IGB:
481 case VNET_DPDK_PMD_IGC:
482 case VNET_DPDK_PMD_IXGBE:
483 case VNET_DPDK_PMD_ICE:
484 xd->port_type = port_type_from_speed_capa (&dev_info);
485 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
486 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
487 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
488 VNET_FLOW_ACTION_BUFFER_ADVANCE |
489 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
490 VNET_FLOW_ACTION_RSS;
492 if (dm->conf->no_tx_checksum_offload == 0)
494 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
495 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
496 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
497 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
500 xd->port_conf.intr_conf.rxq = 1;
502 case VNET_DPDK_PMD_MLX5:
503 if (dm->conf->no_tx_checksum_offload == 0)
505 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
506 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
507 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
508 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
510 xd->port_type = port_type_from_speed_capa (&dev_info);
512 case VNET_DPDK_PMD_CXGBE:
513 case VNET_DPDK_PMD_MLX4:
514 case VNET_DPDK_PMD_QEDE:
515 case VNET_DPDK_PMD_BNXT:
516 xd->port_type = port_type_from_speed_capa (&dev_info);
520 case VNET_DPDK_PMD_I40EVF:
521 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
522 case VNET_DPDK_PMD_IGBVF:
523 case VNET_DPDK_PMD_IXGBEVF:
524 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
525 if (dm->conf->no_tx_checksum_offload == 0)
527 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
528 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
530 DPDK_DEVICE_FLAG_TX_OFFLOAD |
531 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
533 /* DPDK bug in multiqueue... */
534 /* xd->port_conf.intr_conf.rxq = 1; */
538 case VNET_DPDK_PMD_IAVF:
539 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
540 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
541 xd->supported_flow_actions =
542 VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
543 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
544 VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT |
545 VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS;
547 if (dm->conf->no_tx_checksum_offload == 0)
549 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
550 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
552 DPDK_DEVICE_FLAG_TX_OFFLOAD |
553 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
555 /* DPDK bug in multiqueue... */
556 /* xd->port_conf.intr_conf.rxq = 1; */
559 case VNET_DPDK_PMD_THUNDERX:
560 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
562 if (dm->conf->no_tx_checksum_offload == 0)
564 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
565 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
566 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
570 case VNET_DPDK_PMD_ENA:
571 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
572 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
573 xd->port_conf.intr_conf.rxq = 1;
574 if (dm->conf->no_tx_checksum_offload == 0)
576 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_IPV4_CKSUM;
577 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
578 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
579 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
583 case VNET_DPDK_PMD_DPAA2:
584 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
588 case VNET_DPDK_PMD_ENIC:
590 struct rte_eth_link l;
591 rte_eth_link_get_nowait (i, &l);
592 xd->port_type = port_type_from_link_speed (l.link_speed);
593 if (dm->conf->enable_tcp_udp_checksum)
594 dpdk_enable_l4_csum_offload (xd);
598 /* Intel Red Rock Canyon */
599 case VNET_DPDK_PMD_FM10K:
600 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
604 case VNET_DPDK_PMD_VIRTIO:
605 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
606 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
607 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
608 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
610 * Enable use of RX interrupts if supported.
612 * There is no device flag or capability for this, so
613 * use the same check that the virtio driver does.
615 if (pci_dev && rte_intr_cap_multiple (&pci_dev->intr_handle))
616 xd->port_conf.intr_conf.rxq = 1;
620 case VNET_DPDK_PMD_VMXNET3:
621 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
622 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
625 case VNET_DPDK_PMD_AF_PACKET:
626 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
627 xd->af_packet_instance_num = af_packet_instance_num++;
630 case VNET_DPDK_PMD_VIRTIO_USER:
631 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
634 case VNET_DPDK_PMD_VHOST_ETHER:
635 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
638 case VNET_DPDK_PMD_LIOVF_ETHER:
639 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
642 case VNET_DPDK_PMD_FAILSAFE:
643 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
644 xd->port_conf.intr_conf.lsc = 1;
647 case VNET_DPDK_PMD_NETVSC:
649 struct rte_eth_link l;
650 rte_eth_link_get_nowait (i, &l);
651 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
656 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
659 if (devconf->num_rx_desc)
660 xd->nb_rx_desc = devconf->num_rx_desc;
663 /* If num_rx_desc is not specified by VPP user, the current CPU is working
664 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
665 from original 1024 to help reduce TLB misses.
667 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
668 && check_l3cache() == 0)
669 xd->nb_rx_desc = 512;
672 if (devconf->num_tx_desc)
673 xd->nb_tx_desc = devconf->num_tx_desc;
676 /* If num_tx_desc is not specified by VPP user, the current CPU is working
677 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
678 from original 1024 to help reduce TLB misses.
680 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
681 && check_l3cache() == 0)
682 xd->nb_tx_desc = 512;
686 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
688 f64 now = vlib_time_now (vm);
690 rnd = (u32) (now * 1e6);
691 rnd = random_u32 (&rnd);
692 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
697 rte_eth_macaddr_get (i, (void *) addr);
700 xd->device_index = xd - dm->devices;
701 xd->per_interface_next_index = ~0;
703 /* assign interface to input thread */
706 error = ethernet_register_interface
707 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
708 /* ethernet address */ addr,
709 &xd->hw_if_index, dpdk_flag_change);
714 * Ensure default mtu is not > the mtu read from the hardware.
715 * Otherwise rte_eth_dev_configure() will fail and the port will
717 * Calculate max_frame_size and mtu supported by NIC
719 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
722 * This device does not support the platforms's max frame
723 * size. Use it's advertised mru instead.
725 max_rx_frame = dev_info.max_rx_pktlen;
726 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
730 /* VPP treats MTU and max_rx_pktlen both equal to
731 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
732 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
734 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
735 sizeof (ethernet_header_t)))
737 mtu = ETHERNET_MAX_PACKET_BYTES;
738 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
741 * Some platforms do not account for Ethernet FCS (4 bytes) in
742 * MTU calculations. To interop with them increase mru but only
743 * if the device's settings can support it.
745 if (dpdk_port_crc_strip_enabled (xd) &&
746 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
747 sizeof (ethernet_header_t) +
755 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
756 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
758 if (dpdk_port_crc_strip_enabled (xd) &&
759 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
766 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
768 /* failsafe device numerables are reported with active device only,
769 * need to query the mtu for current device setup to overwrite
773 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
776 max_rx_frame = mtu + sizeof (ethernet_header_t);
778 if (dpdk_port_crc_strip_enabled (xd))
785 /*Set port rxmode config */
786 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
788 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
789 xd->sw_if_index = sw->sw_if_index;
790 vnet_hw_if_set_input_node (dm->vnet_main, xd->hw_if_index,
791 dpdk_input_node.index);
793 if (devconf->workers)
797 clib_bitmap_foreach (i, devconf->workers) {
798 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
799 rxq->queue_index = vnet_hw_if_register_rx_queue (
800 dm->vnet_main, xd->hw_if_index, q++,
801 vdm->first_worker_thread_index + i);
805 for (q = 0; q < xd->rx_q_used; q++)
807 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
808 rxq->queue_index = vnet_hw_if_register_rx_queue (
809 dm->vnet_main, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
812 vnet_hw_if_update_runtime_data (dm->vnet_main, xd->hw_if_index);
814 /*Get vnet hardware interface */
815 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
817 /*Override default max_packet_bytes and max_supported_bytes set in
818 * ethernet_register_interface() above*/
821 hi->max_packet_bytes = mtu;
822 hi->max_supported_packet_bytes = max_rx_frame;
823 hi->numa_node = xd->cpu_socket;
825 /* Indicate ability to support L3 DMAC filtering and
826 * initialize interface to L3 non-promisc mode */
827 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER;
828 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
829 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
832 if (dm->conf->no_tx_checksum_offload == 0)
833 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
835 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_CKSUM |
836 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_TCP_CKSUM |
837 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_CKSUM;
838 if (dm->conf->enable_outer_checksum_offload)
840 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_OUTER_CKSUM |
841 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_OUTER_CKSUM;
844 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
846 /*tcp_udp checksum must be enabled*/
847 if ((dm->conf->enable_tcp_udp_checksum) &&
848 (hi->caps & VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM))
850 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
851 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO;
853 if (dm->conf->enable_outer_checksum_offload &&
854 (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VXLAN_TNL_TSO))
856 xd->port_conf.txmode.offloads |=
857 DEV_TX_OFFLOAD_VXLAN_TNL_TSO;
858 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_VXLAN_TNL_GSO;
862 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
866 dpdk_device_setup (xd);
868 /* rss queues should be configured after dpdk_device_setup() */
869 if ((hi != NULL) && (devconf->rss_queues != NULL))
871 if (vnet_hw_interface_set_rss_queues
872 (vnet_get_main (), hi, devconf->rss_queues))
874 clib_warning ("%s: Failed to set rss queues", hi->name);
878 if (vec_len (xd->errors))
879 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
880 format_dpdk_device_name, i,
881 format_dpdk_device_errors, xd);
884 * A note on Cisco VIC (PMD_ENIC) and VLAN:
886 * With Cisco VIC vNIC, every ingress packet is tagged. On a
887 * trunk vNIC (C series "standalone" server), packets on no VLAN
888 * are tagged with vlan 0. On an access vNIC (standalone or B
889 * series "blade" server), packets on the default/native VLAN
890 * are tagged with that vNIC's VLAN. VPP expects these packets
891 * to be untagged, and previously enabled VLAN strip on VIC by
892 * default. But it also broke vlan sub-interfaces.
894 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
895 * mode, which removes tags from these packets. VPP now includes
896 * a local patch for the enic driver to use this untag mode, so
897 * enabling vlan stripping is no longer needed. In future, the
898 * driver + dpdk will have an API to set the mode after
899 * rte_eal_init. Then, this note and local patch will be
904 * VLAN stripping: default to VLAN strip disabled, unless specified
905 * otherwise in the startup config.
908 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
909 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
911 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
912 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
913 dpdk_log_info ("VLAN strip enabled for interface\n");
915 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
916 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
920 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
922 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
923 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
924 dpdk_log_warn ("set VLAN offload failed\n");
926 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
930 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
931 - sizeof (ethernet_header_t);
933 dpdk_log_warn ("hi NULL");
935 if (dm->conf->no_multi_seg)
936 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
938 rte_eth_dev_set_mtu (xd->port_id, mtu);
947 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
949 vlib_main_t *vm = vlib_get_main ();
952 int num_whitelisted = vec_len (conf->dev_confs);
953 vlib_pci_device_info_t *d = 0;
954 vlib_pci_addr_t *addr = 0, *addrs;
957 addrs = vlib_pci_get_all_dev_addrs ();
959 vec_foreach (addr, addrs)
961 dpdk_device_config_t * devconf = 0;
962 vec_reset_length (pci_addr);
963 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
966 vlib_pci_free_device_info (d);
969 d = vlib_pci_get_device_info (vm, addr, &error);
972 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
973 clib_error_free (error);
977 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
982 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
990 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
993 /* Enforce Device blacklist by vendor and device */
994 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
997 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
998 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
999 if (d->vendor_id == vendor && d->device_id == device)
1002 * Expected case: device isn't whitelisted,
1003 * so blacklist it...
1007 /* Device is blacklisted */
1008 pool_get (conf->dev_confs, devconf);
1009 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1010 devconf - conf->dev_confs);
1011 devconf->pci_addr.as_u32 = addr->as_u32;
1012 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1013 devconf->is_blacklisted = 1;
1016 else /* explicitly whitelisted, ignore the device blacklist */
1022 if (d->vendor_id == 0x1af4 &&
1023 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
1024 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
1027 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
1030 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
1031 * the default is to put it in the blacklist.
1035 pool_get (conf->dev_confs, devconf);
1036 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1037 devconf - conf->dev_confs);
1038 devconf->pci_addr.as_u32 = addr->as_u32;
1039 devconf->is_blacklisted = 1;
1042 /* all Intel network devices */
1043 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
1045 /* all Intel QAT devices VFs */
1046 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
1047 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
1048 d->device_id == 0x37c9 || d->device_id == 0x6f55))
1051 else if (d->vendor_id == 0x1137 &&
1052 (d->device_id == 0x0043 || d->device_id == 0x0071))
1055 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
1057 /* Amazon Elastic Network Adapter */
1058 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
1060 /* Cavium Network Adapter */
1061 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
1063 /* Cavium FastlinQ QL41000 Series */
1064 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
1066 /* Mellanox CX3, CX3VF */
1067 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
1071 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
1072 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
1076 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
1077 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
1081 /* Broadcom NetXtreme S, and E series only */
1082 else if (d->vendor_id == 0x14e4 &&
1083 ((d->device_id >= 0x16c0 &&
1084 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1085 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1086 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1087 d->device_id != 0x170d && d->device_id != 0x170c &&
1088 d->device_id != 0x170e && d->device_id != 0x1712 &&
1089 d->device_id != 0x1713) ||
1090 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1091 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1092 d->device_id == 0x1609 || d->device_id == 0x1614)))
1096 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1097 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1102 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1108 pool_get (conf->dev_confs, devconf);
1109 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1110 devconf - conf->dev_confs);
1111 devconf->pci_addr.as_u32 = addr->as_u32;
1113 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1114 devconf->is_blacklisted = 1;
1115 clib_error_report (error);
1119 vec_free (pci_addr);
1120 vlib_pci_free_device_info (d);
1124 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1126 clib_error_t *error;
1127 vlib_vmbus_addr_t *addrs, *addr = 0;
1128 int num_whitelisted = vec_len (conf->dev_confs);
1131 addrs = vlib_vmbus_get_all_dev_addrs ();
1134 vec_foreach (addr, addrs)
1136 dpdk_device_config_t *devconf = 0;
1137 if (num_whitelisted)
1140 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
1143 /* No devices blacklisted, but have whitelisted. blacklist all
1144 * non-whitelisted */
1145 pool_get (conf->dev_confs, devconf);
1146 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1147 devconf - conf->dev_confs, 0);
1148 devconf->vmbus_addr = *addr;
1149 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1150 devconf->is_blacklisted = 1;
1155 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1158 /* Enforce Device blacklist by vmbus_addr */
1159 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1161 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
1162 vlib_vmbus_addr_t *a2 = addr;
1163 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
1167 /* Device not whitelisted */
1168 pool_get (conf->dev_confs, devconf);
1169 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1170 devconf - conf->dev_confs, 0);
1171 devconf->vmbus_addr = *addr;
1172 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1173 devconf->is_blacklisted = 1;
1183 error = vlib_vmbus_bind_to_uio (addr);
1188 pool_get (conf->dev_confs, devconf);
1189 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1190 devconf - conf->dev_confs, 0);
1191 devconf->vmbus_addr = *addr;
1193 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1194 devconf->is_blacklisted = 1;
1195 clib_error_report (error);
1202 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
1204 uword *max_simd_bitwidth = va_arg (*va, uword *);
1206 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1208 if (!unformat (input, "%u", max_simd_bitwidth))
1211 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
1212 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
1220 static clib_error_t *
1221 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1222 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1225 clib_error_t *error = 0;
1227 dpdk_device_config_t *devconf = 0;
1228 unformat_input_t sub_input;
1232 devconf = &conf->default_devconf;
1234 else if (addr_type == VNET_DEV_ADDR_PCI)
1236 p = hash_get (conf->device_config_index_by_pci_addr,
1237 ((vlib_pci_addr_t *) (addr))->as_u32);
1241 pool_get (conf->dev_confs, devconf);
1242 hash_set (conf->device_config_index_by_pci_addr,
1243 ((vlib_pci_addr_t *) (addr))->as_u32,
1244 devconf - conf->dev_confs);
1247 return clib_error_return (0,
1248 "duplicate configuration for PCI address %U",
1249 format_vlib_pci_addr, addr);
1251 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1253 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
1254 (vlib_vmbus_addr_t *) (addr));
1258 pool_get (conf->dev_confs, devconf);
1259 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1260 devconf - conf->dev_confs, 0);
1263 return clib_error_return (
1264 0, "duplicate configuration for VMBUS address %U",
1265 format_vlib_vmbus_addr, addr);
1268 if (addr_type == VNET_DEV_ADDR_PCI)
1270 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1271 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1272 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1274 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1276 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1277 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1278 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1284 unformat_skip_white_space (input);
1285 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1287 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1289 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1291 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1293 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1295 else if (unformat (input, "name %s", &devconf->name))
1297 else if (unformat (input, "workers %U", unformat_bitmap_list,
1302 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1304 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1308 else if (unformat (input, "vlan-strip-offload off"))
1309 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1310 else if (unformat (input, "vlan-strip-offload on"))
1311 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1312 else if (unformat (input, "tso on"))
1314 devconf->tso = DPDK_DEVICE_TSO_ON;
1316 else if (unformat (input, "tso off"))
1318 devconf->tso = DPDK_DEVICE_TSO_OFF;
1320 else if (unformat (input, "devargs %s", &devconf->devargs))
1322 else if (unformat (input, "rss-queues %U",
1323 unformat_bitmap_list, &devconf->rss_queues))
1325 else if (unformat (input, "max-lro-pkt-size %u",
1326 &devconf->max_lro_pkt_size))
1330 error = clib_error_return (0, "unknown input `%U'",
1331 format_unformat_error, input);
1339 if (devconf->workers && devconf->num_rx_queues == 0)
1340 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1341 else if (devconf->workers &&
1342 clib_bitmap_count_set_bits (devconf->workers) !=
1343 devconf->num_rx_queues)
1344 error = clib_error_return (0,
1345 "%U: number of worker threads must be "
1346 "equal to number of rx queues",
1347 format_vlib_pci_addr, addr);
1352 static clib_error_t *
1353 dpdk_log_read_ready (clib_file_t * uf)
1355 unformat_input_t input;
1362 uword len = vec_len (s);
1363 vec_resize (s, len + n_try);
1365 n = read (uf->file_descriptor, s + len, n_try);
1366 if (n < 0 && errno != EAGAIN)
1367 return clib_error_return_unix (0, "read");
1368 _vec_len (s) = len + (n < 0 ? 0 : n);
1371 unformat_init_vector (&input, s);
1373 while (unformat_user (&input, unformat_line, &line))
1375 dpdk_log_notice ("%v", line);
1379 unformat_free (&input);
1383 static clib_error_t *
1384 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1386 clib_error_t *error = 0;
1387 dpdk_config_main_t *conf = &dpdk_config_main;
1388 vlib_thread_main_t *tm = vlib_get_thread_main ();
1389 dpdk_device_config_t *devconf;
1390 vlib_pci_addr_t pci_addr = { 0 };
1391 vlib_vmbus_addr_t vmbus_addr = { 0 };
1392 unformat_input_t sub_input;
1393 uword default_hugepage_sz, x;
1396 int num_whitelisted = 0;
1397 int eal_no_hugetlb = 0;
1402 u8 *huge_dir_path = 0;
1403 u32 vendor, device, domain, bus, func;
1406 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1408 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1409 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
1410 sizeof (vlib_vmbus_addr_t));
1412 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1414 /* Prime the pump */
1415 if (unformat (input, "no-hugetlb"))
1417 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1420 else if (unformat (input, "telemetry"))
1421 conf->enable_telemetry = 1;
1423 else if (unformat (input, "enable-tcp-udp-checksum"))
1425 conf->enable_tcp_udp_checksum = 1;
1426 if (unformat (input, "enable-outer-checksum-offload"))
1427 conf->enable_outer_checksum_offload = 1;
1429 else if (unformat (input, "no-tx-checksum-offload"))
1430 conf->no_tx_checksum_offload = 1;
1432 else if (unformat (input, "decimal-interface-names"))
1433 conf->interface_name_format_decimal = 1;
1435 else if (unformat (input, "no-multi-seg"))
1436 conf->no_multi_seg = 1;
1437 else if (unformat (input, "enable-lro"))
1438 conf->enable_lro = 1;
1439 else if (unformat (input, "max-simd-bitwidth %U",
1440 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
1442 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1446 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1453 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1454 unformat_vlib_cli_sub_input, &sub_input))
1456 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1464 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1467 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1474 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1475 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1477 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1485 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1489 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1496 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1497 conf->nchannels_set_manually = 0;
1498 else if (unformat (input, "num-crypto-mbufs %d",
1499 &conf->num_crypto_mbufs))
1501 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1503 else if (unformat (input, "socket-mem %s", &socket_mem))
1505 else if (unformat (input, "no-pci"))
1508 tmp = format (0, "--no-pci%c", 0);
1509 vec_add1 (conf->eal_init_args, tmp);
1511 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1514 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1518 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1520 tmp = format (0, "-b%c", 0);
1521 vec_add1 (conf->eal_init_args, tmp);
1523 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1524 vec_add1 (conf->eal_init_args, tmp);
1526 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1528 u32 blacklist_entry;
1529 if (vendor > 0xFFFF)
1530 return clib_error_return (0, "blacklist PCI vendor out of range");
1531 if (device > 0xFFFF)
1532 return clib_error_return (0, "blacklist PCI device out of range");
1533 blacklist_entry = (vendor << 16) | (device & 0xffff);
1534 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1537 else if (unformat (input, "no-vmbus"))
1540 tmp = format (0, "--no-vmbus%c", 0);
1541 vec_add1 (conf->eal_init_args, tmp);
1545 else if (unformat(input, #a)) \
1547 tmp = format (0, "--%s%c", #a, 0); \
1548 vec_add1 (conf->eal_init_args, tmp); \
1550 foreach_eal_double_hyphen_predicate_arg
1553 else if (unformat(input, #a " %s", &s)) \
1555 if (!strncmp(#a, "file-prefix", 11)) \
1557 tmp = format (0, "--%s%c", #a, 0); \
1558 vec_add1 (conf->eal_init_args, tmp); \
1560 if (!strncmp(#a, "vdev", 4)) \
1561 if (strstr((char*)s, "af_packet")) \
1562 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1563 vec_add1 (conf->eal_init_args, s); \
1565 foreach_eal_double_hyphen_arg
1568 else if (unformat(input, #a " %s", &s)) \
1570 tmp = format (0, "-%s%c", #b, 0); \
1571 vec_add1 (conf->eal_init_args, tmp); \
1573 vec_add1 (conf->eal_init_args, s); \
1575 foreach_eal_single_hyphen_arg
1578 else if (unformat(input, #a " %s", &s)) \
1580 tmp = format (0, "-%s%c", #b, 0); \
1581 vec_add1 (conf->eal_init_args, tmp); \
1583 vec_add1 (conf->eal_init_args, s); \
1584 conf->a##_set_manually = 1; \
1586 foreach_eal_single_hyphen_mandatory_arg
1588 else if (unformat (input, "default"))
1591 else if (unformat_skip_white_space (input))
1595 error = clib_error_return (0, "unknown input `%U'",
1596 format_unformat_error, input);
1601 if (!conf->uio_driver_name)
1602 conf->uio_driver_name = format (0, "auto%c", 0);
1604 if (eal_no_hugetlb == 0)
1606 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1608 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1611 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1615 /* preallocate at least 16MB of hugepages per socket,
1616 if more is needed it is up to consumer to preallocate more */
1617 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1618 n_pages /= default_hugepage_sz;
1620 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1621 clib_error_report (e);
1626 /* on/off dpdk's telemetry thread */
1627 if (conf->enable_telemetry == 0)
1629 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1634 tmp = format (0, "--file-prefix%c", 0);
1635 vec_add1 (conf->eal_init_args, tmp);
1636 tmp = format (0, "vpp%c", 0);
1637 vec_add1 (conf->eal_init_args, tmp);
1643 /* I'll bet that -c and -n must be the first and second args... */
1644 if (!conf->coremask_set_manually)
1646 vlib_thread_registration_t *tr;
1647 uword *coremask = 0;
1650 /* main thread core */
1651 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1653 for (i = 0; i < vec_len (tm->registrations); i++)
1655 tr = tm->registrations[i];
1656 coremask = clib_bitmap_or (coremask, tr->coremask);
1659 vec_insert (conf->eal_init_args, 2, 1);
1660 conf->eal_init_args[1] = (u8 *) "-c";
1661 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1662 conf->eal_init_args[2] = tmp;
1663 clib_bitmap_free (coremask);
1666 if (!conf->nchannels_set_manually)
1668 vec_insert (conf->eal_init_args, 2, 3);
1669 conf->eal_init_args[3] = (u8 *) "-n";
1670 tmp = format (0, "%d", conf->nchannels);
1671 vec_terminate_c_string (tmp);
1672 conf->eal_init_args[4] = tmp;
1675 if (no_pci == 0 && geteuid () == 0)
1676 dpdk_bind_devices_to_uio (conf);
1678 if (no_vmbus == 0 && geteuid () == 0)
1679 dpdk_bind_vmbus_devices_to_uio (conf);
1682 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1683 devconf->x = conf->default_devconf.x ;
1686 pool_foreach (devconf, conf->dev_confs) {
1688 /* default per-device config items */
1689 foreach_dpdk_device_config_item
1691 /* copy vlan_strip config from default device */
1692 _ (vlan_strip_offload)
1694 /* copy tso config from default device */
1697 /* copy tso config from default device */
1700 /* copy rss_queues config from default device */
1703 /* add DPDK EAL whitelist/blacklist entry */
1704 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1705 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1707 tmp = format (0, "-a%c", 0);
1708 vec_add1 (conf->eal_init_args, tmp);
1709 if (devconf->devargs)
1711 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1712 &devconf->pci_addr, devconf->devargs, 0);
1716 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1718 vec_add1 (conf->eal_init_args, tmp);
1720 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1721 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1723 tmp = format (0, "-b%c", 0);
1724 vec_add1 (conf->eal_init_args, tmp);
1725 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1726 vec_add1 (conf->eal_init_args, tmp);
1733 /* set master-lcore */
1734 tmp = format (0, "--main-lcore%c", 0);
1735 vec_add1 (conf->eal_init_args, tmp);
1736 tmp = format (0, "%u%c", tm->main_lcore, 0);
1737 vec_add1 (conf->eal_init_args, tmp);
1741 clib_warning ("socket-mem argument is deprecated");
1743 /* NULL terminate the "argv" vector, in case of stupidity */
1744 vec_add1 (conf->eal_init_args, 0);
1745 _vec_len (conf->eal_init_args) -= 1;
1747 /* Set up DPDK eal and packet mbuf pool early. */
1749 int log_fds[2] = { 0 };
1750 if (pipe (log_fds) == 0)
1752 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1754 FILE *f = fdopen (log_fds[1], "a");
1755 if (f && rte_openlog_stream (f) == 0)
1757 clib_file_t t = { 0 };
1758 t.read_function = dpdk_log_read_ready;
1759 t.file_descriptor = log_fds[0];
1760 t.description = format (0, "DPDK logging pipe");
1761 clib_file_add (&file_main, &t);
1771 vm = vlib_get_main ();
1773 /* make copy of args as rte_eal_init tends to mess up with arg array */
1774 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1775 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1776 conf->eal_init_args[i]);
1778 vec_terminate_c_string (conf->eal_init_args_str);
1780 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1781 ret = rte_eal_init (vec_len (conf->eal_init_args),
1782 (char **) conf->eal_init_args);
1784 /* enable the AVX-512 vPMDs in DPDK */
1785 if (clib_cpu_supports_avx512_bitalg () &&
1786 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1787 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1788 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1789 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1790 DPDK_MAX_SIMD_BITWIDTH_256 ?
1794 /* lazy umount hugepages */
1795 umount2 ((char *) huge_dir_path, MNT_DETACH);
1796 rmdir ((char *) huge_dir_path);
1797 vec_free (huge_dir_path);
1800 return clib_error_return (0, "rte_eal_init returned %d", ret);
1802 /* main thread 1st */
1803 if ((error = dpdk_buffer_pools_create (vm)))
1810 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1813 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1815 vnet_main_t *vnm = vnet_get_main ();
1816 struct rte_eth_link prev_link = xd->link;
1818 u8 hw_flags_chg = 0;
1820 /* only update link state for PMD interfaces */
1821 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1824 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1825 clib_memset (&xd->link, 0, sizeof (xd->link));
1826 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1828 if (LINK_STATE_ELOGS)
1830 ELOG_TYPE_DECLARE (e) =
1833 "update-link-state: sw_if_index %d, admin_up %d,"
1834 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1843 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1844 ed->sw_if_index = xd->sw_if_index;
1845 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1846 ed->old_link_state = (u8)
1847 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1848 ed->new_link_state = (u8) xd->link.link_status;
1851 if ((xd->link.link_duplex != prev_link.link_duplex))
1854 switch (xd->link.link_duplex)
1856 case ETH_LINK_HALF_DUPLEX:
1857 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1859 case ETH_LINK_FULL_DUPLEX:
1860 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1866 if (xd->link.link_speed != prev_link.link_speed)
1867 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1868 xd->link.link_speed * 1000);
1870 if (xd->link.link_status != prev_link.link_status)
1874 if (xd->link.link_status)
1875 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1880 if (LINK_STATE_ELOGS)
1882 ELOG_TYPE_DECLARE (e) =
1885 "update-link-state: sw_if_index %d, new flags %d",.format_args
1893 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1894 ed->sw_if_index = xd->sw_if_index;
1895 ed->flags = hw_flags;
1897 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1902 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1904 clib_error_t *error;
1905 dpdk_main_t *dm = &dpdk_main;
1907 vlib_thread_main_t *tm = vlib_get_thread_main ();
1909 error = dpdk_lib_init (dm);
1912 clib_error_report (error);
1914 if (dpdk_cryptodev_init)
1916 error = dpdk_cryptodev_init (vm);
1919 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1921 clib_error_free (error);
1925 tm->worker_thread_release = 1;
1927 f64 now = vlib_time_now (vm);
1928 vec_foreach (xd, dm->devices)
1930 dpdk_update_link_state (xd, now);
1936 * check each time through the loop in case intervals are changed
1938 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1939 dm->link_state_poll_interval : dm->stat_poll_interval;
1941 vlib_process_wait_for_event_or_clock (vm, min_wait);
1943 if (dm->admin_up_down_in_progress)
1944 /* skip the poll if an admin up down is in progress (on any interface) */
1947 vec_foreach (xd, dm->devices)
1949 f64 now = vlib_time_now (vm);
1950 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1951 dpdk_update_counters (xd, now);
1952 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1953 dpdk_update_link_state (xd, now);
1962 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1963 .function = dpdk_process,
1964 .type = VLIB_NODE_TYPE_PROCESS,
1965 .name = "dpdk-process",
1966 .process_log2_n_stack_bytes = 17,
1970 static clib_error_t *
1971 dpdk_init (vlib_main_t * vm)
1973 dpdk_main_t *dm = &dpdk_main;
1974 clib_error_t *error = 0;
1976 /* verify that structs are cacheline aligned */
1977 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1978 "Cache line marker must be 1st element in dpdk_device_t");
1979 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1980 CLIB_CACHE_LINE_BYTES,
1981 "Data in cache line 0 is bigger than cache line size");
1982 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1983 "Cache line marker must be 1st element in frame_queue_trace_t");
1985 dpdk_cli_reference ();
1988 dm->vnet_main = vnet_get_main ();
1989 dm->conf = &dpdk_config_main;
1991 dm->conf->nchannels = 4;
1992 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1994 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1995 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1996 VLIB_BUFFER_EXT_HDR_VALID |
1997 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1998 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
2000 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
2001 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
2003 dm->log_default = vlib_log_register_class ("dpdk", 0);
2004 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
2005 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
2010 VLIB_INIT_FUNCTION (dpdk_init);
2013 * fd.io coding-style-patch-verification: ON
2016 * eval: (c-set-style "gnu")