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;
480 case VNET_DPDK_PMD_E1000EM:
481 case VNET_DPDK_PMD_IGB:
482 case VNET_DPDK_PMD_IGC:
483 case VNET_DPDK_PMD_IXGBE:
484 case VNET_DPDK_PMD_ICE:
485 xd->port_type = port_type_from_speed_capa (&dev_info);
486 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
487 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
488 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
489 VNET_FLOW_ACTION_BUFFER_ADVANCE |
490 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
491 VNET_FLOW_ACTION_RSS;
493 if (dm->conf->no_tx_checksum_offload == 0)
495 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
496 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
497 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
498 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
501 xd->port_conf.intr_conf.rxq = 1;
503 case VNET_DPDK_PMD_MLX5:
504 if (dm->conf->no_tx_checksum_offload == 0)
506 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
507 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
508 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
509 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
511 xd->port_type = port_type_from_speed_capa (&dev_info);
513 case VNET_DPDK_PMD_CXGBE:
514 case VNET_DPDK_PMD_MLX4:
515 case VNET_DPDK_PMD_QEDE:
516 case VNET_DPDK_PMD_BNXT:
517 xd->port_type = port_type_from_speed_capa (&dev_info);
521 case VNET_DPDK_PMD_I40EVF:
522 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
524 case VNET_DPDK_PMD_IGBVF:
525 case VNET_DPDK_PMD_IXGBEVF:
526 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
527 if (dm->conf->no_tx_checksum_offload == 0)
529 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
530 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
532 DPDK_DEVICE_FLAG_TX_OFFLOAD |
533 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
535 /* DPDK bug in multiqueue... */
536 /* xd->port_conf.intr_conf.rxq = 1; */
540 case VNET_DPDK_PMD_IAVF:
541 xd->flags |= DPDK_DEVICE_FLAG_INT_UNMASKABLE;
542 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
543 xd->supported_flow_actions =
544 VNET_FLOW_ACTION_MARK | VNET_FLOW_ACTION_REDIRECT_TO_NODE |
545 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
546 VNET_FLOW_ACTION_BUFFER_ADVANCE | VNET_FLOW_ACTION_COUNT |
547 VNET_FLOW_ACTION_DROP | VNET_FLOW_ACTION_RSS;
549 if (dm->conf->no_tx_checksum_offload == 0)
551 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
552 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
554 DPDK_DEVICE_FLAG_TX_OFFLOAD |
555 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
557 /* DPDK bug in multiqueue... */
558 /* xd->port_conf.intr_conf.rxq = 1; */
561 case VNET_DPDK_PMD_THUNDERX:
562 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
564 if (dm->conf->no_tx_checksum_offload == 0)
566 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
567 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
568 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
572 case VNET_DPDK_PMD_ENA:
573 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
574 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
575 xd->port_conf.intr_conf.rxq = 1;
576 if (dm->conf->no_tx_checksum_offload == 0)
578 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_IPV4_CKSUM;
579 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
580 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
581 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
585 case VNET_DPDK_PMD_DPAA2:
586 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
590 case VNET_DPDK_PMD_ENIC:
592 struct rte_eth_link l;
593 rte_eth_link_get_nowait (i, &l);
594 xd->port_type = port_type_from_link_speed (l.link_speed);
595 if (dm->conf->enable_tcp_udp_checksum)
596 dpdk_enable_l4_csum_offload (xd);
600 /* Intel Red Rock Canyon */
601 case VNET_DPDK_PMD_FM10K:
602 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
606 case VNET_DPDK_PMD_VIRTIO:
607 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
608 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
609 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
610 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
612 * Enable use of RX interrupts if supported.
614 * There is no device flag or capability for this, so
615 * use the same check that the virtio driver does.
617 if (pci_dev && rte_intr_cap_multiple (&pci_dev->intr_handle))
618 xd->port_conf.intr_conf.rxq = 1;
622 case VNET_DPDK_PMD_VMXNET3:
623 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
624 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
625 /* TCP csum offload not working although udp might work. Left
626 * disabled for now */
627 if (0 && (dm->conf->no_tx_checksum_offload == 0))
629 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_IPV4_CKSUM;
630 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
631 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
632 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
636 case VNET_DPDK_PMD_AF_PACKET:
637 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
638 xd->af_packet_instance_num = af_packet_instance_num++;
641 case VNET_DPDK_PMD_VIRTIO_USER:
642 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
645 case VNET_DPDK_PMD_VHOST_ETHER:
646 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
649 case VNET_DPDK_PMD_LIOVF_ETHER:
650 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
653 case VNET_DPDK_PMD_FAILSAFE:
654 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
655 xd->port_conf.intr_conf.lsc = 1;
658 case VNET_DPDK_PMD_NETVSC:
660 struct rte_eth_link l;
661 rte_eth_link_get_nowait (i, &l);
662 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
667 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
670 if (devconf->num_rx_desc)
671 xd->nb_rx_desc = devconf->num_rx_desc;
674 /* If num_rx_desc is not specified by VPP user, the current CPU is working
675 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
676 from original 1024 to help reduce TLB misses.
678 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
679 && check_l3cache() == 0)
680 xd->nb_rx_desc = 512;
683 if (devconf->num_tx_desc)
684 xd->nb_tx_desc = devconf->num_tx_desc;
687 /* If num_tx_desc is not specified by VPP user, the current CPU is working
688 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
689 from original 1024 to help reduce TLB misses.
691 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
692 && check_l3cache() == 0)
693 xd->nb_tx_desc = 512;
697 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
699 f64 now = vlib_time_now (vm);
701 rnd = (u32) (now * 1e6);
702 rnd = random_u32 (&rnd);
703 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
708 rte_eth_macaddr_get (i, (void *) addr);
711 xd->device_index = xd - dm->devices;
712 xd->per_interface_next_index = ~0;
714 /* assign interface to input thread */
717 error = ethernet_register_interface
718 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
719 /* ethernet address */ addr,
720 &xd->hw_if_index, dpdk_flag_change);
725 * Ensure default mtu is not > the mtu read from the hardware.
726 * Otherwise rte_eth_dev_configure() will fail and the port will
728 * Calculate max_frame_size and mtu supported by NIC
730 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
733 * This device does not support the platforms's max frame
734 * size. Use it's advertised mru instead.
736 max_rx_frame = dev_info.max_rx_pktlen;
737 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
741 /* VPP treats MTU and max_rx_pktlen both equal to
742 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
743 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
745 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
746 sizeof (ethernet_header_t)))
748 mtu = ETHERNET_MAX_PACKET_BYTES;
749 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
752 * Some platforms do not account for Ethernet FCS (4 bytes) in
753 * MTU calculations. To interop with them increase mru but only
754 * if the device's settings can support it.
756 if (dpdk_port_crc_strip_enabled (xd) &&
757 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
758 sizeof (ethernet_header_t) +
766 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
767 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
769 if (dpdk_port_crc_strip_enabled (xd) &&
770 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
777 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
779 /* failsafe device numerables are reported with active device only,
780 * need to query the mtu for current device setup to overwrite
784 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
787 max_rx_frame = mtu + sizeof (ethernet_header_t);
789 if (dpdk_port_crc_strip_enabled (xd))
796 /*Set port rxmode config */
797 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
799 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
800 xd->sw_if_index = sw->sw_if_index;
801 vnet_hw_if_set_input_node (dm->vnet_main, xd->hw_if_index,
802 dpdk_input_node.index);
804 if (devconf->workers)
808 clib_bitmap_foreach (i, devconf->workers) {
809 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
810 rxq->queue_index = vnet_hw_if_register_rx_queue (
811 dm->vnet_main, xd->hw_if_index, q++,
812 vdm->first_worker_thread_index + i);
816 for (q = 0; q < xd->rx_q_used; q++)
818 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
819 rxq->queue_index = vnet_hw_if_register_rx_queue (
820 dm->vnet_main, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
823 vnet_hw_if_update_runtime_data (dm->vnet_main, xd->hw_if_index);
825 /*Get vnet hardware interface */
826 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
828 /*Override default max_packet_bytes and max_supported_bytes set in
829 * ethernet_register_interface() above*/
832 hi->max_packet_bytes = mtu;
833 hi->max_supported_packet_bytes = max_rx_frame;
834 hi->numa_node = xd->cpu_socket;
836 /* Indicate ability to support L3 DMAC filtering and
837 * initialize interface to L3 non-promisc mode */
838 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER;
839 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
840 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
843 if (dm->conf->no_tx_checksum_offload == 0)
844 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
846 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_CKSUM |
847 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_TCP_CKSUM |
848 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_CKSUM;
849 if (dm->conf->enable_outer_checksum_offload)
851 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_OUTER_CKSUM |
852 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_OUTER_CKSUM;
855 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
857 /*tcp_udp checksum must be enabled*/
858 if ((dm->conf->enable_tcp_udp_checksum) &&
859 (hi->caps & VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM))
861 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
862 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO;
864 if (dm->conf->enable_outer_checksum_offload &&
865 (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VXLAN_TNL_TSO))
867 xd->port_conf.txmode.offloads |=
868 DEV_TX_OFFLOAD_VXLAN_TNL_TSO;
869 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_VXLAN_TNL_GSO;
873 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
877 dpdk_device_setup (xd);
879 /* rss queues should be configured after dpdk_device_setup() */
880 if ((hi != NULL) && (devconf->rss_queues != NULL))
882 if (vnet_hw_interface_set_rss_queues
883 (vnet_get_main (), hi, devconf->rss_queues))
885 clib_warning ("%s: Failed to set rss queues", hi->name);
889 if (vec_len (xd->errors))
890 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
891 format_dpdk_device_name, i,
892 format_dpdk_device_errors, xd);
895 * A note on Cisco VIC (PMD_ENIC) and VLAN:
897 * With Cisco VIC vNIC, every ingress packet is tagged. On a
898 * trunk vNIC (C series "standalone" server), packets on no VLAN
899 * are tagged with vlan 0. On an access vNIC (standalone or B
900 * series "blade" server), packets on the default/native VLAN
901 * are tagged with that vNIC's VLAN. VPP expects these packets
902 * to be untagged, and previously enabled VLAN strip on VIC by
903 * default. But it also broke vlan sub-interfaces.
905 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
906 * mode, which removes tags from these packets. VPP now includes
907 * a local patch for the enic driver to use this untag mode, so
908 * enabling vlan stripping is no longer needed. In future, the
909 * driver + dpdk will have an API to set the mode after
910 * rte_eal_init. Then, this note and local patch will be
915 * VLAN stripping: default to VLAN strip disabled, unless specified
916 * otherwise in the startup config.
919 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
920 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
922 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
923 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
924 dpdk_log_info ("VLAN strip enabled for interface\n");
926 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
927 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
931 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
933 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
934 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
935 dpdk_log_warn ("set VLAN offload failed\n");
937 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
941 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
942 - sizeof (ethernet_header_t);
944 dpdk_log_warn ("hi NULL");
946 if (dm->conf->no_multi_seg)
947 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
949 rte_eth_dev_set_mtu (xd->port_id, mtu);
958 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
960 vlib_main_t *vm = vlib_get_main ();
963 int num_whitelisted = vec_len (conf->dev_confs);
964 vlib_pci_device_info_t *d = 0;
965 vlib_pci_addr_t *addr = 0, *addrs;
968 addrs = vlib_pci_get_all_dev_addrs ();
970 vec_foreach (addr, addrs)
972 dpdk_device_config_t * devconf = 0;
973 vec_reset_length (pci_addr);
974 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
977 vlib_pci_free_device_info (d);
980 d = vlib_pci_get_device_info (vm, addr, &error);
983 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
984 clib_error_free (error);
988 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
993 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
1001 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1004 /* Enforce Device blacklist by vendor and device */
1005 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
1008 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
1009 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
1010 if (d->vendor_id == vendor && d->device_id == device)
1013 * Expected case: device isn't whitelisted,
1014 * so blacklist it...
1018 /* Device is blacklisted */
1019 pool_get (conf->dev_confs, devconf);
1020 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1021 devconf - conf->dev_confs);
1022 devconf->pci_addr.as_u32 = addr->as_u32;
1023 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1024 devconf->is_blacklisted = 1;
1027 else /* explicitly whitelisted, ignore the device blacklist */
1033 if (d->vendor_id == 0x1af4 &&
1034 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
1035 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
1038 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
1041 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
1042 * the default is to put it in the blacklist.
1046 pool_get (conf->dev_confs, devconf);
1047 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1048 devconf - conf->dev_confs);
1049 devconf->pci_addr.as_u32 = addr->as_u32;
1050 devconf->is_blacklisted = 1;
1053 /* all Intel network devices */
1054 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
1056 /* all Intel QAT devices VFs */
1057 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
1058 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
1059 d->device_id == 0x37c9 || d->device_id == 0x6f55))
1062 else if (d->vendor_id == 0x1137 &&
1063 (d->device_id == 0x0043 || d->device_id == 0x0071))
1066 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
1068 /* Amazon Elastic Network Adapter */
1069 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
1071 /* Cavium Network Adapter */
1072 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
1074 /* Cavium FastlinQ QL41000 Series */
1075 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
1077 /* Mellanox CX3, CX3VF */
1078 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
1082 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
1083 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
1087 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
1088 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
1092 /* Broadcom NetXtreme S, and E series only */
1093 else if (d->vendor_id == 0x14e4 &&
1094 ((d->device_id >= 0x16c0 &&
1095 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1096 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1097 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1098 d->device_id != 0x170d && d->device_id != 0x170c &&
1099 d->device_id != 0x170e && d->device_id != 0x1712 &&
1100 d->device_id != 0x1713) ||
1101 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1102 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1103 d->device_id == 0x1609 || d->device_id == 0x1614)))
1107 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1108 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1113 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1119 pool_get (conf->dev_confs, devconf);
1120 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1121 devconf - conf->dev_confs);
1122 devconf->pci_addr.as_u32 = addr->as_u32;
1124 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1125 devconf->is_blacklisted = 1;
1126 clib_error_report (error);
1130 vec_free (pci_addr);
1131 vlib_pci_free_device_info (d);
1135 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1137 clib_error_t *error;
1138 vlib_vmbus_addr_t *addrs, *addr = 0;
1139 int num_whitelisted = vec_len (conf->dev_confs);
1142 addrs = vlib_vmbus_get_all_dev_addrs ();
1145 vec_foreach (addr, addrs)
1147 dpdk_device_config_t *devconf = 0;
1148 if (num_whitelisted)
1151 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
1154 /* No devices blacklisted, but have whitelisted. blacklist all
1155 * non-whitelisted */
1156 pool_get (conf->dev_confs, devconf);
1157 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1158 devconf - conf->dev_confs, 0);
1159 devconf->vmbus_addr = *addr;
1160 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1161 devconf->is_blacklisted = 1;
1166 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1169 /* Enforce Device blacklist by vmbus_addr */
1170 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1172 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
1173 vlib_vmbus_addr_t *a2 = addr;
1174 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
1178 /* Device not whitelisted */
1179 pool_get (conf->dev_confs, devconf);
1180 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1181 devconf - conf->dev_confs, 0);
1182 devconf->vmbus_addr = *addr;
1183 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1184 devconf->is_blacklisted = 1;
1194 error = vlib_vmbus_bind_to_uio (addr);
1199 pool_get (conf->dev_confs, devconf);
1200 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1201 devconf - conf->dev_confs, 0);
1202 devconf->vmbus_addr = *addr;
1204 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1205 devconf->is_blacklisted = 1;
1206 clib_error_report (error);
1213 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
1215 uword *max_simd_bitwidth = va_arg (*va, uword *);
1217 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1219 if (!unformat (input, "%u", max_simd_bitwidth))
1222 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
1223 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
1231 static clib_error_t *
1232 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1233 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1236 clib_error_t *error = 0;
1238 dpdk_device_config_t *devconf = 0;
1239 unformat_input_t sub_input;
1243 devconf = &conf->default_devconf;
1245 else if (addr_type == VNET_DEV_ADDR_PCI)
1247 p = hash_get (conf->device_config_index_by_pci_addr,
1248 ((vlib_pci_addr_t *) (addr))->as_u32);
1252 pool_get (conf->dev_confs, devconf);
1253 hash_set (conf->device_config_index_by_pci_addr,
1254 ((vlib_pci_addr_t *) (addr))->as_u32,
1255 devconf - conf->dev_confs);
1258 return clib_error_return (0,
1259 "duplicate configuration for PCI address %U",
1260 format_vlib_pci_addr, addr);
1262 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1264 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
1265 (vlib_vmbus_addr_t *) (addr));
1269 pool_get (conf->dev_confs, devconf);
1270 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1271 devconf - conf->dev_confs, 0);
1274 return clib_error_return (
1275 0, "duplicate configuration for VMBUS address %U",
1276 format_vlib_vmbus_addr, addr);
1279 if (addr_type == VNET_DEV_ADDR_PCI)
1281 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1282 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1283 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1285 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1287 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1288 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1289 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1295 unformat_skip_white_space (input);
1296 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1298 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1300 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1302 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1304 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1306 else if (unformat (input, "name %s", &devconf->name))
1308 else if (unformat (input, "workers %U", unformat_bitmap_list,
1313 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1315 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1319 else if (unformat (input, "vlan-strip-offload off"))
1320 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1321 else if (unformat (input, "vlan-strip-offload on"))
1322 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1323 else if (unformat (input, "tso on"))
1325 devconf->tso = DPDK_DEVICE_TSO_ON;
1327 else if (unformat (input, "tso off"))
1329 devconf->tso = DPDK_DEVICE_TSO_OFF;
1331 else if (unformat (input, "devargs %s", &devconf->devargs))
1333 else if (unformat (input, "rss-queues %U",
1334 unformat_bitmap_list, &devconf->rss_queues))
1336 else if (unformat (input, "max-lro-pkt-size %u",
1337 &devconf->max_lro_pkt_size))
1341 error = clib_error_return (0, "unknown input `%U'",
1342 format_unformat_error, input);
1350 if (devconf->workers && devconf->num_rx_queues == 0)
1351 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1352 else if (devconf->workers &&
1353 clib_bitmap_count_set_bits (devconf->workers) !=
1354 devconf->num_rx_queues)
1355 error = clib_error_return (0,
1356 "%U: number of worker threads must be "
1357 "equal to number of rx queues",
1358 format_vlib_pci_addr, addr);
1363 static clib_error_t *
1364 dpdk_log_read_ready (clib_file_t * uf)
1366 unformat_input_t input;
1373 uword len = vec_len (s);
1374 vec_resize (s, len + n_try);
1376 n = read (uf->file_descriptor, s + len, n_try);
1377 if (n < 0 && errno != EAGAIN)
1378 return clib_error_return_unix (0, "read");
1379 _vec_len (s) = len + (n < 0 ? 0 : n);
1382 unformat_init_vector (&input, s);
1384 while (unformat_user (&input, unformat_line, &line))
1386 dpdk_log_notice ("%v", line);
1390 unformat_free (&input);
1394 static clib_error_t *
1395 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1397 clib_error_t *error = 0;
1398 dpdk_config_main_t *conf = &dpdk_config_main;
1399 vlib_thread_main_t *tm = vlib_get_thread_main ();
1400 dpdk_device_config_t *devconf;
1401 vlib_pci_addr_t pci_addr = { 0 };
1402 vlib_vmbus_addr_t vmbus_addr = { 0 };
1403 unformat_input_t sub_input;
1404 uword default_hugepage_sz, x;
1407 int num_whitelisted = 0;
1408 int eal_no_hugetlb = 0;
1413 u8 *huge_dir_path = 0;
1414 u32 vendor, device, domain, bus, func;
1417 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1419 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1420 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
1421 sizeof (vlib_vmbus_addr_t));
1423 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1425 /* Prime the pump */
1426 if (unformat (input, "no-hugetlb"))
1428 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1431 else if (unformat (input, "telemetry"))
1432 conf->enable_telemetry = 1;
1434 else if (unformat (input, "enable-tcp-udp-checksum"))
1436 conf->enable_tcp_udp_checksum = 1;
1437 if (unformat (input, "enable-outer-checksum-offload"))
1438 conf->enable_outer_checksum_offload = 1;
1440 else if (unformat (input, "no-tx-checksum-offload"))
1441 conf->no_tx_checksum_offload = 1;
1443 else if (unformat (input, "decimal-interface-names"))
1444 conf->interface_name_format_decimal = 1;
1446 else if (unformat (input, "no-multi-seg"))
1447 conf->no_multi_seg = 1;
1448 else if (unformat (input, "enable-lro"))
1449 conf->enable_lro = 1;
1450 else if (unformat (input, "max-simd-bitwidth %U",
1451 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
1453 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1457 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1464 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1465 unformat_vlib_cli_sub_input, &sub_input))
1467 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1475 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1478 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1485 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1486 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1488 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1496 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1500 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1507 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1509 else if (unformat (input, "socket-mem %s", &socket_mem))
1511 else if (unformat (input, "no-pci"))
1514 tmp = format (0, "--no-pci%c", 0);
1515 vec_add1 (conf->eal_init_args, tmp);
1517 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1520 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1524 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1526 tmp = format (0, "-b%c", 0);
1527 vec_add1 (conf->eal_init_args, tmp);
1529 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1530 vec_add1 (conf->eal_init_args, tmp);
1532 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1534 u32 blacklist_entry;
1535 if (vendor > 0xFFFF)
1536 return clib_error_return (0, "blacklist PCI vendor out of range");
1537 if (device > 0xFFFF)
1538 return clib_error_return (0, "blacklist PCI device out of range");
1539 blacklist_entry = (vendor << 16) | (device & 0xffff);
1540 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1543 else if (unformat (input, "no-vmbus"))
1546 tmp = format (0, "--no-vmbus%c", 0);
1547 vec_add1 (conf->eal_init_args, tmp);
1551 else if (unformat(input, #a)) \
1553 tmp = format (0, "--%s%c", #a, 0); \
1554 vec_add1 (conf->eal_init_args, tmp); \
1556 foreach_eal_double_hyphen_predicate_arg
1559 else if (unformat(input, #a " %s", &s)) \
1561 if (!strncmp(#a, "file-prefix", 11)) \
1563 tmp = format (0, "--%s%c", #a, 0); \
1564 vec_add1 (conf->eal_init_args, tmp); \
1566 if (!strncmp(#a, "vdev", 4)) \
1567 if (strstr((char*)s, "af_packet")) \
1568 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1569 vec_add1 (conf->eal_init_args, s); \
1571 foreach_eal_double_hyphen_arg
1574 else if (unformat(input, #a " %s", &s)) \
1576 tmp = format (0, "-%s%c", #b, 0); \
1577 vec_add1 (conf->eal_init_args, tmp); \
1579 vec_add1 (conf->eal_init_args, s); \
1581 foreach_eal_single_hyphen_arg
1583 else if (unformat (input, "default"))
1586 else if (unformat_skip_white_space (input))
1590 error = clib_error_return (0, "unknown input `%U'",
1591 format_unformat_error, input);
1596 if (!conf->uio_driver_name)
1597 conf->uio_driver_name = format (0, "auto%c", 0);
1599 if (eal_no_hugetlb == 0)
1601 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1603 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1606 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1610 /* preallocate at least 16MB of hugepages per socket,
1611 if more is needed it is up to consumer to preallocate more */
1612 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1613 n_pages /= default_hugepage_sz;
1615 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1616 clib_error_report (e);
1621 /* on/off dpdk's telemetry thread */
1622 if (conf->enable_telemetry == 0)
1624 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1629 tmp = format (0, "--file-prefix%c", 0);
1630 vec_add1 (conf->eal_init_args, tmp);
1631 tmp = format (0, "vpp%c", 0);
1632 vec_add1 (conf->eal_init_args, tmp);
1638 if (no_pci == 0 && geteuid () == 0)
1639 dpdk_bind_devices_to_uio (conf);
1641 if (no_vmbus == 0 && geteuid () == 0)
1642 dpdk_bind_vmbus_devices_to_uio (conf);
1645 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1646 devconf->x = conf->default_devconf.x ;
1648 pool_foreach (devconf, conf->dev_confs) {
1650 /* default per-device config items */
1651 foreach_dpdk_device_config_item
1653 /* copy vlan_strip config from default device */
1654 _ (vlan_strip_offload)
1656 /* copy tso config from default device */
1659 /* copy tso config from default device */
1662 /* copy rss_queues config from default device */
1665 /* add DPDK EAL whitelist/blacklist entry */
1666 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1667 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1669 tmp = format (0, "-a%c", 0);
1670 vec_add1 (conf->eal_init_args, tmp);
1671 if (devconf->devargs)
1673 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1674 &devconf->pci_addr, devconf->devargs, 0);
1678 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1680 vec_add1 (conf->eal_init_args, tmp);
1682 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1683 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1685 tmp = format (0, "-b%c", 0);
1686 vec_add1 (conf->eal_init_args, tmp);
1687 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1688 vec_add1 (conf->eal_init_args, tmp);
1695 clib_warning ("socket-mem argument is deprecated");
1697 /* NULL terminate the "argv" vector, in case of stupidity */
1698 vec_add1 (conf->eal_init_args, 0);
1699 _vec_len (conf->eal_init_args) -= 1;
1701 /* Set up DPDK eal and packet mbuf pool early. */
1703 int log_fds[2] = { 0 };
1704 if (pipe (log_fds) == 0)
1706 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1708 FILE *f = fdopen (log_fds[1], "a");
1709 if (f && rte_openlog_stream (f) == 0)
1711 clib_file_t t = { 0 };
1712 t.read_function = dpdk_log_read_ready;
1713 t.file_descriptor = log_fds[0];
1714 t.description = format (0, "DPDK logging pipe");
1715 clib_file_add (&file_main, &t);
1725 vm = vlib_get_main ();
1727 /* make copy of args as rte_eal_init tends to mess up with arg array */
1728 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1729 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1730 conf->eal_init_args[i]);
1732 vec_terminate_c_string (conf->eal_init_args_str);
1734 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1735 ret = rte_eal_init (vec_len (conf->eal_init_args),
1736 (char **) conf->eal_init_args);
1738 /* enable the AVX-512 vPMDs in DPDK */
1739 if (clib_cpu_supports_avx512_bitalg () &&
1740 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1741 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1742 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1743 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1744 DPDK_MAX_SIMD_BITWIDTH_256 ?
1748 /* lazy umount hugepages */
1749 umount2 ((char *) huge_dir_path, MNT_DETACH);
1750 rmdir ((char *) huge_dir_path);
1751 vec_free (huge_dir_path);
1754 return clib_error_return (0, "rte_eal_init returned %d", ret);
1756 /* main thread 1st */
1757 if ((error = dpdk_buffer_pools_create (vm)))
1764 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1767 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1769 vnet_main_t *vnm = vnet_get_main ();
1770 struct rte_eth_link prev_link = xd->link;
1772 u8 hw_flags_chg = 0;
1774 /* only update link state for PMD interfaces */
1775 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1778 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1779 clib_memset (&xd->link, 0, sizeof (xd->link));
1780 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1782 if (LINK_STATE_ELOGS)
1784 ELOG_TYPE_DECLARE (e) =
1787 "update-link-state: sw_if_index %d, admin_up %d,"
1788 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1797 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1798 ed->sw_if_index = xd->sw_if_index;
1799 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1800 ed->old_link_state = (u8)
1801 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1802 ed->new_link_state = (u8) xd->link.link_status;
1805 if ((xd->link.link_duplex != prev_link.link_duplex))
1808 switch (xd->link.link_duplex)
1810 case ETH_LINK_HALF_DUPLEX:
1811 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1813 case ETH_LINK_FULL_DUPLEX:
1814 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1820 if (xd->link.link_speed != prev_link.link_speed)
1821 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1822 xd->link.link_speed * 1000);
1824 if (xd->link.link_status != prev_link.link_status)
1828 if (xd->link.link_status)
1829 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1834 if (LINK_STATE_ELOGS)
1836 ELOG_TYPE_DECLARE (e) =
1839 "update-link-state: sw_if_index %d, new flags %d",.format_args
1847 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1848 ed->sw_if_index = xd->sw_if_index;
1849 ed->flags = hw_flags;
1851 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1856 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1858 clib_error_t *error;
1859 dpdk_main_t *dm = &dpdk_main;
1861 vlib_thread_main_t *tm = vlib_get_thread_main ();
1863 error = dpdk_lib_init (dm);
1866 clib_error_report (error);
1868 if (dpdk_cryptodev_init)
1870 error = dpdk_cryptodev_init (vm);
1873 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1875 clib_error_free (error);
1879 tm->worker_thread_release = 1;
1881 f64 now = vlib_time_now (vm);
1882 vec_foreach (xd, dm->devices)
1884 dpdk_update_link_state (xd, now);
1890 * check each time through the loop in case intervals are changed
1892 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1893 dm->link_state_poll_interval : dm->stat_poll_interval;
1895 vlib_process_wait_for_event_or_clock (vm, min_wait);
1897 if (dm->admin_up_down_in_progress)
1898 /* skip the poll if an admin up down is in progress (on any interface) */
1901 vec_foreach (xd, dm->devices)
1903 f64 now = vlib_time_now (vm);
1904 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1905 dpdk_update_counters (xd, now);
1906 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1907 dpdk_update_link_state (xd, now);
1916 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1917 .function = dpdk_process,
1918 .type = VLIB_NODE_TYPE_PROCESS,
1919 .name = "dpdk-process",
1920 .process_log2_n_stack_bytes = 17,
1924 static clib_error_t *
1925 dpdk_init (vlib_main_t * vm)
1927 dpdk_main_t *dm = &dpdk_main;
1928 clib_error_t *error = 0;
1930 /* verify that structs are cacheline aligned */
1931 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1932 "Cache line marker must be 1st element in dpdk_device_t");
1933 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1934 CLIB_CACHE_LINE_BYTES,
1935 "Data in cache line 0 is bigger than cache line size");
1936 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1937 "Cache line marker must be 1st element in frame_queue_trace_t");
1939 dpdk_cli_reference ();
1942 dm->vnet_main = vnet_get_main ();
1943 dm->conf = &dpdk_config_main;
1945 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1947 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1948 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1949 VLIB_BUFFER_EXT_HDR_VALID |
1950 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1951 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1953 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1954 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1956 dm->log_default = vlib_log_register_class ("dpdk", 0);
1957 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1958 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
1963 VLIB_INIT_FUNCTION (dpdk_init);
1965 static clib_error_t *
1966 dpdk_worker_thread_init (vlib_main_t *vm)
1968 if (rte_thread_register () < 0)
1969 clib_panic ("dpdk: cannot register thread %u - %s", vm->thread_index,
1970 rte_strerror (rte_errno));
1974 VLIB_WORKER_INIT_FUNCTION (dpdk_worker_thread_init);