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 if (dm->conf->no_tx_checksum_offload == 0)
627 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
628 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
629 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
633 case VNET_DPDK_PMD_AF_PACKET:
634 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
635 xd->af_packet_instance_num = af_packet_instance_num++;
638 case VNET_DPDK_PMD_VIRTIO_USER:
639 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
642 case VNET_DPDK_PMD_VHOST_ETHER:
643 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
646 case VNET_DPDK_PMD_LIOVF_ETHER:
647 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
650 case VNET_DPDK_PMD_FAILSAFE:
651 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
652 xd->port_conf.intr_conf.lsc = 1;
655 case VNET_DPDK_PMD_NETVSC:
657 struct rte_eth_link l;
658 rte_eth_link_get_nowait (i, &l);
659 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
664 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
667 if (devconf->num_rx_desc)
668 xd->nb_rx_desc = devconf->num_rx_desc;
671 /* If num_rx_desc is not specified by VPP user, the current CPU is working
672 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
673 from original 1024 to help reduce TLB misses.
675 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
676 && check_l3cache() == 0)
677 xd->nb_rx_desc = 512;
680 if (devconf->num_tx_desc)
681 xd->nb_tx_desc = devconf->num_tx_desc;
684 /* If num_tx_desc is not specified by VPP user, the current CPU is working
685 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
686 from original 1024 to help reduce TLB misses.
688 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
689 && check_l3cache() == 0)
690 xd->nb_tx_desc = 512;
694 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
696 f64 now = vlib_time_now (vm);
698 rnd = (u32) (now * 1e6);
699 rnd = random_u32 (&rnd);
700 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
705 rte_eth_macaddr_get (i, (void *) addr);
708 xd->device_index = xd - dm->devices;
709 xd->per_interface_next_index = ~0;
711 /* assign interface to input thread */
714 error = ethernet_register_interface
715 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
716 /* ethernet address */ addr,
717 &xd->hw_if_index, dpdk_flag_change);
722 * Ensure default mtu is not > the mtu read from the hardware.
723 * Otherwise rte_eth_dev_configure() will fail and the port will
725 * Calculate max_frame_size and mtu supported by NIC
727 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
730 * This device does not support the platforms's max frame
731 * size. Use it's advertised mru instead.
733 max_rx_frame = dev_info.max_rx_pktlen;
734 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
738 /* VPP treats MTU and max_rx_pktlen both equal to
739 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
740 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
742 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
743 sizeof (ethernet_header_t)))
745 mtu = ETHERNET_MAX_PACKET_BYTES;
746 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
749 * Some platforms do not account for Ethernet FCS (4 bytes) in
750 * MTU calculations. To interop with them increase mru but only
751 * if the device's settings can support it.
753 if (dpdk_port_crc_strip_enabled (xd) &&
754 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
755 sizeof (ethernet_header_t) +
763 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
764 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
766 if (dpdk_port_crc_strip_enabled (xd) &&
767 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
774 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
776 /* failsafe device numerables are reported with active device only,
777 * need to query the mtu for current device setup to overwrite
781 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
784 max_rx_frame = mtu + sizeof (ethernet_header_t);
786 if (dpdk_port_crc_strip_enabled (xd))
793 /*Set port rxmode config */
794 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
796 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
797 xd->sw_if_index = sw->sw_if_index;
798 vnet_hw_if_set_input_node (dm->vnet_main, xd->hw_if_index,
799 dpdk_input_node.index);
801 if (devconf->workers)
805 clib_bitmap_foreach (i, devconf->workers) {
806 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
807 rxq->queue_index = vnet_hw_if_register_rx_queue (
808 dm->vnet_main, xd->hw_if_index, q++,
809 vdm->first_worker_thread_index + i);
813 for (q = 0; q < xd->rx_q_used; q++)
815 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
816 rxq->queue_index = vnet_hw_if_register_rx_queue (
817 dm->vnet_main, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
820 vnet_hw_if_update_runtime_data (dm->vnet_main, xd->hw_if_index);
822 /*Get vnet hardware interface */
823 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
825 /*Override default max_packet_bytes and max_supported_bytes set in
826 * ethernet_register_interface() above*/
829 hi->max_packet_bytes = mtu;
830 hi->max_supported_packet_bytes = max_rx_frame;
831 hi->numa_node = xd->cpu_socket;
833 /* Indicate ability to support L3 DMAC filtering and
834 * initialize interface to L3 non-promisc mode */
835 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_MAC_FILTER;
836 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
837 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
840 if (dm->conf->no_tx_checksum_offload == 0)
841 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
843 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_CKSUM |
844 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_TCP_CKSUM |
845 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_CKSUM;
846 if (dm->conf->enable_outer_checksum_offload)
848 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TX_IP4_OUTER_CKSUM |
849 VNET_HW_INTERFACE_CAP_SUPPORTS_TX_UDP_OUTER_CKSUM;
852 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
854 /*tcp_udp checksum must be enabled*/
855 if ((dm->conf->enable_tcp_udp_checksum) &&
856 (hi->caps & VNET_HW_INTERFACE_CAP_SUPPORTS_TX_CKSUM))
858 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_TCP_GSO;
859 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO;
861 if (dm->conf->enable_outer_checksum_offload &&
862 (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_VXLAN_TNL_TSO))
864 xd->port_conf.txmode.offloads |=
865 DEV_TX_OFFLOAD_VXLAN_TNL_TSO;
866 hi->caps |= VNET_HW_INTERFACE_CAP_SUPPORTS_VXLAN_TNL_GSO;
870 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
874 dpdk_device_setup (xd);
876 /* rss queues should be configured after dpdk_device_setup() */
877 if ((hi != NULL) && (devconf->rss_queues != NULL))
879 if (vnet_hw_interface_set_rss_queues
880 (vnet_get_main (), hi, devconf->rss_queues))
882 clib_warning ("%s: Failed to set rss queues", hi->name);
886 if (vec_len (xd->errors))
887 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
888 format_dpdk_device_name, i,
889 format_dpdk_device_errors, xd);
892 * A note on Cisco VIC (PMD_ENIC) and VLAN:
894 * With Cisco VIC vNIC, every ingress packet is tagged. On a
895 * trunk vNIC (C series "standalone" server), packets on no VLAN
896 * are tagged with vlan 0. On an access vNIC (standalone or B
897 * series "blade" server), packets on the default/native VLAN
898 * are tagged with that vNIC's VLAN. VPP expects these packets
899 * to be untagged, and previously enabled VLAN strip on VIC by
900 * default. But it also broke vlan sub-interfaces.
902 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
903 * mode, which removes tags from these packets. VPP now includes
904 * a local patch for the enic driver to use this untag mode, so
905 * enabling vlan stripping is no longer needed. In future, the
906 * driver + dpdk will have an API to set the mode after
907 * rte_eal_init. Then, this note and local patch will be
912 * VLAN stripping: default to VLAN strip disabled, unless specified
913 * otherwise in the startup config.
916 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
917 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
919 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
920 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
921 dpdk_log_info ("VLAN strip enabled for interface\n");
923 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
924 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
928 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
930 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
931 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
932 dpdk_log_warn ("set VLAN offload failed\n");
934 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
938 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
939 - sizeof (ethernet_header_t);
941 dpdk_log_warn ("hi NULL");
943 if (dm->conf->no_multi_seg)
944 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
946 rte_eth_dev_set_mtu (xd->port_id, mtu);
955 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
957 vlib_main_t *vm = vlib_get_main ();
960 int num_whitelisted = vec_len (conf->dev_confs);
961 vlib_pci_device_info_t *d = 0;
962 vlib_pci_addr_t *addr = 0, *addrs;
965 addrs = vlib_pci_get_all_dev_addrs ();
967 vec_foreach (addr, addrs)
969 dpdk_device_config_t * devconf = 0;
970 vec_reset_length (pci_addr);
971 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
974 vlib_pci_free_device_info (d);
977 d = vlib_pci_get_device_info (vm, addr, &error);
980 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
981 clib_error_free (error);
985 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
990 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
998 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1001 /* Enforce Device blacklist by vendor and device */
1002 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
1005 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
1006 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
1007 if (d->vendor_id == vendor && d->device_id == device)
1010 * Expected case: device isn't whitelisted,
1011 * so blacklist it...
1015 /* Device is blacklisted */
1016 pool_get (conf->dev_confs, devconf);
1017 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1018 devconf - conf->dev_confs);
1019 devconf->pci_addr.as_u32 = addr->as_u32;
1020 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1021 devconf->is_blacklisted = 1;
1024 else /* explicitly whitelisted, ignore the device blacklist */
1030 if (d->vendor_id == 0x1af4 &&
1031 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
1032 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
1035 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
1038 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
1039 * the default is to put it in the blacklist.
1043 pool_get (conf->dev_confs, devconf);
1044 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1045 devconf - conf->dev_confs);
1046 devconf->pci_addr.as_u32 = addr->as_u32;
1047 devconf->is_blacklisted = 1;
1050 /* all Intel network devices */
1051 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
1053 /* all Intel QAT devices VFs */
1054 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
1055 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
1056 d->device_id == 0x37c9 || d->device_id == 0x6f55))
1059 else if (d->vendor_id == 0x1137 &&
1060 (d->device_id == 0x0043 || d->device_id == 0x0071))
1063 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
1065 /* Amazon Elastic Network Adapter */
1066 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
1068 /* Cavium Network Adapter */
1069 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
1071 /* Cavium FastlinQ QL41000 Series */
1072 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
1074 /* Mellanox CX3, CX3VF */
1075 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
1079 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
1080 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
1084 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
1085 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
1089 /* Broadcom NetXtreme S, and E series only */
1090 else if (d->vendor_id == 0x14e4 &&
1091 ((d->device_id >= 0x16c0 &&
1092 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1093 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1094 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1095 d->device_id != 0x170d && d->device_id != 0x170c &&
1096 d->device_id != 0x170e && d->device_id != 0x1712 &&
1097 d->device_id != 0x1713) ||
1098 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1099 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1100 d->device_id == 0x1609 || d->device_id == 0x1614)))
1104 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1105 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1110 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1116 pool_get (conf->dev_confs, devconf);
1117 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1118 devconf - conf->dev_confs);
1119 devconf->pci_addr.as_u32 = addr->as_u32;
1121 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1122 devconf->is_blacklisted = 1;
1123 clib_error_report (error);
1127 vec_free (pci_addr);
1128 vlib_pci_free_device_info (d);
1132 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1134 clib_error_t *error;
1135 vlib_vmbus_addr_t *addrs, *addr = 0;
1136 int num_whitelisted = vec_len (conf->dev_confs);
1139 addrs = vlib_vmbus_get_all_dev_addrs ();
1142 vec_foreach (addr, addrs)
1144 dpdk_device_config_t *devconf = 0;
1145 if (num_whitelisted)
1148 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
1151 /* No devices blacklisted, but have whitelisted. blacklist all
1152 * non-whitelisted */
1153 pool_get (conf->dev_confs, devconf);
1154 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1155 devconf - conf->dev_confs, 0);
1156 devconf->vmbus_addr = *addr;
1157 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1158 devconf->is_blacklisted = 1;
1163 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1166 /* Enforce Device blacklist by vmbus_addr */
1167 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1169 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
1170 vlib_vmbus_addr_t *a2 = addr;
1171 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
1175 /* Device not whitelisted */
1176 pool_get (conf->dev_confs, devconf);
1177 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1178 devconf - conf->dev_confs, 0);
1179 devconf->vmbus_addr = *addr;
1180 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1181 devconf->is_blacklisted = 1;
1191 error = vlib_vmbus_bind_to_uio (addr);
1196 pool_get (conf->dev_confs, devconf);
1197 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1198 devconf - conf->dev_confs, 0);
1199 devconf->vmbus_addr = *addr;
1201 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1202 devconf->is_blacklisted = 1;
1203 clib_error_report (error);
1210 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
1212 uword *max_simd_bitwidth = va_arg (*va, uword *);
1214 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1216 if (!unformat (input, "%u", max_simd_bitwidth))
1219 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
1220 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
1228 static clib_error_t *
1229 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1230 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1233 clib_error_t *error = 0;
1235 dpdk_device_config_t *devconf = 0;
1236 unformat_input_t sub_input;
1240 devconf = &conf->default_devconf;
1242 else if (addr_type == VNET_DEV_ADDR_PCI)
1244 p = hash_get (conf->device_config_index_by_pci_addr,
1245 ((vlib_pci_addr_t *) (addr))->as_u32);
1249 pool_get (conf->dev_confs, devconf);
1250 hash_set (conf->device_config_index_by_pci_addr,
1251 ((vlib_pci_addr_t *) (addr))->as_u32,
1252 devconf - conf->dev_confs);
1255 return clib_error_return (0,
1256 "duplicate configuration for PCI address %U",
1257 format_vlib_pci_addr, addr);
1259 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1261 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
1262 (vlib_vmbus_addr_t *) (addr));
1266 pool_get (conf->dev_confs, devconf);
1267 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
1268 devconf - conf->dev_confs, 0);
1271 return clib_error_return (
1272 0, "duplicate configuration for VMBUS address %U",
1273 format_vlib_vmbus_addr, addr);
1276 if (addr_type == VNET_DEV_ADDR_PCI)
1278 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1279 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1280 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1282 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1284 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1285 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1286 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1292 unformat_skip_white_space (input);
1293 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1295 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1297 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1299 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1301 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1303 else if (unformat (input, "name %s", &devconf->name))
1305 else if (unformat (input, "workers %U", unformat_bitmap_list,
1310 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1312 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1316 else if (unformat (input, "vlan-strip-offload off"))
1317 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1318 else if (unformat (input, "vlan-strip-offload on"))
1319 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1320 else if (unformat (input, "tso on"))
1322 devconf->tso = DPDK_DEVICE_TSO_ON;
1324 else if (unformat (input, "tso off"))
1326 devconf->tso = DPDK_DEVICE_TSO_OFF;
1328 else if (unformat (input, "devargs %s", &devconf->devargs))
1330 else if (unformat (input, "rss-queues %U",
1331 unformat_bitmap_list, &devconf->rss_queues))
1333 else if (unformat (input, "max-lro-pkt-size %u",
1334 &devconf->max_lro_pkt_size))
1338 error = clib_error_return (0, "unknown input `%U'",
1339 format_unformat_error, input);
1347 if (devconf->workers && devconf->num_rx_queues == 0)
1348 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1349 else if (devconf->workers &&
1350 clib_bitmap_count_set_bits (devconf->workers) !=
1351 devconf->num_rx_queues)
1352 error = clib_error_return (0,
1353 "%U: number of worker threads must be "
1354 "equal to number of rx queues",
1355 format_vlib_pci_addr, addr);
1360 static clib_error_t *
1361 dpdk_log_read_ready (clib_file_t * uf)
1363 unformat_input_t input;
1370 uword len = vec_len (s);
1371 vec_resize (s, len + n_try);
1373 n = read (uf->file_descriptor, s + len, n_try);
1374 if (n < 0 && errno != EAGAIN)
1375 return clib_error_return_unix (0, "read");
1376 _vec_len (s) = len + (n < 0 ? 0 : n);
1379 unformat_init_vector (&input, s);
1381 while (unformat_user (&input, unformat_line, &line))
1383 dpdk_log_notice ("%v", line);
1387 unformat_free (&input);
1391 static clib_error_t *
1392 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1394 clib_error_t *error = 0;
1395 dpdk_config_main_t *conf = &dpdk_config_main;
1396 vlib_thread_main_t *tm = vlib_get_thread_main ();
1397 dpdk_device_config_t *devconf;
1398 vlib_pci_addr_t pci_addr = { 0 };
1399 vlib_vmbus_addr_t vmbus_addr = { 0 };
1400 unformat_input_t sub_input;
1401 uword default_hugepage_sz, x;
1404 int num_whitelisted = 0;
1405 int eal_no_hugetlb = 0;
1410 u8 *huge_dir_path = 0;
1411 u32 vendor, device, domain, bus, func;
1414 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1416 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1417 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
1418 sizeof (vlib_vmbus_addr_t));
1420 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1422 /* Prime the pump */
1423 if (unformat (input, "no-hugetlb"))
1425 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1428 else if (unformat (input, "telemetry"))
1429 conf->enable_telemetry = 1;
1431 else if (unformat (input, "enable-tcp-udp-checksum"))
1433 conf->enable_tcp_udp_checksum = 1;
1434 if (unformat (input, "enable-outer-checksum-offload"))
1435 conf->enable_outer_checksum_offload = 1;
1437 else if (unformat (input, "no-tx-checksum-offload"))
1438 conf->no_tx_checksum_offload = 1;
1440 else if (unformat (input, "decimal-interface-names"))
1441 conf->interface_name_format_decimal = 1;
1443 else if (unformat (input, "no-multi-seg"))
1444 conf->no_multi_seg = 1;
1445 else if (unformat (input, "enable-lro"))
1446 conf->enable_lro = 1;
1447 else if (unformat (input, "max-simd-bitwidth %U",
1448 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
1450 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1454 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1461 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1462 unformat_vlib_cli_sub_input, &sub_input))
1464 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1472 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1475 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1482 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1483 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1485 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1493 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1497 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1504 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1505 conf->nchannels_set_manually = 0;
1506 else if (unformat (input, "num-crypto-mbufs %d",
1507 &conf->num_crypto_mbufs))
1509 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1511 else if (unformat (input, "socket-mem %s", &socket_mem))
1513 else if (unformat (input, "no-pci"))
1516 tmp = format (0, "--no-pci%c", 0);
1517 vec_add1 (conf->eal_init_args, tmp);
1519 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1522 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1526 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1528 tmp = format (0, "-b%c", 0);
1529 vec_add1 (conf->eal_init_args, tmp);
1531 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1532 vec_add1 (conf->eal_init_args, tmp);
1534 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1536 u32 blacklist_entry;
1537 if (vendor > 0xFFFF)
1538 return clib_error_return (0, "blacklist PCI vendor out of range");
1539 if (device > 0xFFFF)
1540 return clib_error_return (0, "blacklist PCI device out of range");
1541 blacklist_entry = (vendor << 16) | (device & 0xffff);
1542 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1545 else if (unformat (input, "no-vmbus"))
1548 tmp = format (0, "--no-vmbus%c", 0);
1549 vec_add1 (conf->eal_init_args, tmp);
1553 else if (unformat(input, #a)) \
1555 tmp = format (0, "--%s%c", #a, 0); \
1556 vec_add1 (conf->eal_init_args, tmp); \
1558 foreach_eal_double_hyphen_predicate_arg
1561 else if (unformat(input, #a " %s", &s)) \
1563 if (!strncmp(#a, "file-prefix", 11)) \
1565 tmp = format (0, "--%s%c", #a, 0); \
1566 vec_add1 (conf->eal_init_args, tmp); \
1568 if (!strncmp(#a, "vdev", 4)) \
1569 if (strstr((char*)s, "af_packet")) \
1570 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1571 vec_add1 (conf->eal_init_args, s); \
1573 foreach_eal_double_hyphen_arg
1576 else if (unformat(input, #a " %s", &s)) \
1578 tmp = format (0, "-%s%c", #b, 0); \
1579 vec_add1 (conf->eal_init_args, tmp); \
1581 vec_add1 (conf->eal_init_args, s); \
1583 foreach_eal_single_hyphen_arg
1586 else if (unformat(input, #a " %s", &s)) \
1588 tmp = format (0, "-%s%c", #b, 0); \
1589 vec_add1 (conf->eal_init_args, tmp); \
1591 vec_add1 (conf->eal_init_args, s); \
1592 conf->a##_set_manually = 1; \
1594 foreach_eal_single_hyphen_mandatory_arg
1596 else if (unformat (input, "default"))
1599 else if (unformat_skip_white_space (input))
1603 error = clib_error_return (0, "unknown input `%U'",
1604 format_unformat_error, input);
1609 if (!conf->uio_driver_name)
1610 conf->uio_driver_name = format (0, "auto%c", 0);
1612 if (eal_no_hugetlb == 0)
1614 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1616 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1619 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1623 /* preallocate at least 16MB of hugepages per socket,
1624 if more is needed it is up to consumer to preallocate more */
1625 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1626 n_pages /= default_hugepage_sz;
1628 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1629 clib_error_report (e);
1634 /* on/off dpdk's telemetry thread */
1635 if (conf->enable_telemetry == 0)
1637 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1642 tmp = format (0, "--file-prefix%c", 0);
1643 vec_add1 (conf->eal_init_args, tmp);
1644 tmp = format (0, "vpp%c", 0);
1645 vec_add1 (conf->eal_init_args, tmp);
1651 /* I'll bet that -c and -n must be the first and second args... */
1652 if (!conf->coremask_set_manually)
1654 vlib_thread_registration_t *tr;
1655 uword *coremask = 0;
1658 /* main thread core */
1659 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1661 for (i = 0; i < vec_len (tm->registrations); i++)
1663 tr = tm->registrations[i];
1664 coremask = clib_bitmap_or (coremask, tr->coremask);
1667 vec_insert (conf->eal_init_args, 2, 1);
1668 conf->eal_init_args[1] = (u8 *) "-c";
1669 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1670 conf->eal_init_args[2] = tmp;
1671 clib_bitmap_free (coremask);
1674 if (!conf->nchannels_set_manually)
1676 vec_insert (conf->eal_init_args, 2, 3);
1677 conf->eal_init_args[3] = (u8 *) "-n";
1678 tmp = format (0, "%d", conf->nchannels);
1679 vec_terminate_c_string (tmp);
1680 conf->eal_init_args[4] = tmp;
1683 if (no_pci == 0 && geteuid () == 0)
1684 dpdk_bind_devices_to_uio (conf);
1686 if (no_vmbus == 0 && geteuid () == 0)
1687 dpdk_bind_vmbus_devices_to_uio (conf);
1690 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1691 devconf->x = conf->default_devconf.x ;
1694 pool_foreach (devconf, conf->dev_confs) {
1696 /* default per-device config items */
1697 foreach_dpdk_device_config_item
1699 /* copy vlan_strip config from default device */
1700 _ (vlan_strip_offload)
1702 /* copy tso config from default device */
1705 /* copy tso config from default device */
1708 /* copy rss_queues config from default device */
1711 /* add DPDK EAL whitelist/blacklist entry */
1712 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1713 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1715 tmp = format (0, "-a%c", 0);
1716 vec_add1 (conf->eal_init_args, tmp);
1717 if (devconf->devargs)
1719 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1720 &devconf->pci_addr, devconf->devargs, 0);
1724 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1726 vec_add1 (conf->eal_init_args, tmp);
1728 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1729 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1731 tmp = format (0, "-b%c", 0);
1732 vec_add1 (conf->eal_init_args, tmp);
1733 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1734 vec_add1 (conf->eal_init_args, tmp);
1741 /* set master-lcore */
1742 tmp = format (0, "--main-lcore%c", 0);
1743 vec_add1 (conf->eal_init_args, tmp);
1744 tmp = format (0, "%u%c", tm->main_lcore, 0);
1745 vec_add1 (conf->eal_init_args, tmp);
1749 clib_warning ("socket-mem argument is deprecated");
1751 /* NULL terminate the "argv" vector, in case of stupidity */
1752 vec_add1 (conf->eal_init_args, 0);
1753 _vec_len (conf->eal_init_args) -= 1;
1755 /* Set up DPDK eal and packet mbuf pool early. */
1757 int log_fds[2] = { 0 };
1758 if (pipe (log_fds) == 0)
1760 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1762 FILE *f = fdopen (log_fds[1], "a");
1763 if (f && rte_openlog_stream (f) == 0)
1765 clib_file_t t = { 0 };
1766 t.read_function = dpdk_log_read_ready;
1767 t.file_descriptor = log_fds[0];
1768 t.description = format (0, "DPDK logging pipe");
1769 clib_file_add (&file_main, &t);
1779 vm = vlib_get_main ();
1781 /* make copy of args as rte_eal_init tends to mess up with arg array */
1782 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1783 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1784 conf->eal_init_args[i]);
1786 vec_terminate_c_string (conf->eal_init_args_str);
1788 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1789 ret = rte_eal_init (vec_len (conf->eal_init_args),
1790 (char **) conf->eal_init_args);
1792 /* enable the AVX-512 vPMDs in DPDK */
1793 if (clib_cpu_supports_avx512_bitalg () &&
1794 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1795 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1796 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1797 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1798 DPDK_MAX_SIMD_BITWIDTH_256 ?
1802 /* lazy umount hugepages */
1803 umount2 ((char *) huge_dir_path, MNT_DETACH);
1804 rmdir ((char *) huge_dir_path);
1805 vec_free (huge_dir_path);
1808 return clib_error_return (0, "rte_eal_init returned %d", ret);
1810 /* main thread 1st */
1811 if ((error = dpdk_buffer_pools_create (vm)))
1818 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1821 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1823 vnet_main_t *vnm = vnet_get_main ();
1824 struct rte_eth_link prev_link = xd->link;
1826 u8 hw_flags_chg = 0;
1828 /* only update link state for PMD interfaces */
1829 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1832 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1833 clib_memset (&xd->link, 0, sizeof (xd->link));
1834 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1836 if (LINK_STATE_ELOGS)
1838 ELOG_TYPE_DECLARE (e) =
1841 "update-link-state: sw_if_index %d, admin_up %d,"
1842 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1851 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1852 ed->sw_if_index = xd->sw_if_index;
1853 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1854 ed->old_link_state = (u8)
1855 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1856 ed->new_link_state = (u8) xd->link.link_status;
1859 if ((xd->link.link_duplex != prev_link.link_duplex))
1862 switch (xd->link.link_duplex)
1864 case ETH_LINK_HALF_DUPLEX:
1865 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1867 case ETH_LINK_FULL_DUPLEX:
1868 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1874 if (xd->link.link_speed != prev_link.link_speed)
1875 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1876 xd->link.link_speed * 1000);
1878 if (xd->link.link_status != prev_link.link_status)
1882 if (xd->link.link_status)
1883 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1888 if (LINK_STATE_ELOGS)
1890 ELOG_TYPE_DECLARE (e) =
1893 "update-link-state: sw_if_index %d, new flags %d",.format_args
1901 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1902 ed->sw_if_index = xd->sw_if_index;
1903 ed->flags = hw_flags;
1905 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1910 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1912 clib_error_t *error;
1913 dpdk_main_t *dm = &dpdk_main;
1915 vlib_thread_main_t *tm = vlib_get_thread_main ();
1917 error = dpdk_lib_init (dm);
1920 clib_error_report (error);
1922 if (dpdk_cryptodev_init)
1924 error = dpdk_cryptodev_init (vm);
1927 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1929 clib_error_free (error);
1933 tm->worker_thread_release = 1;
1935 f64 now = vlib_time_now (vm);
1936 vec_foreach (xd, dm->devices)
1938 dpdk_update_link_state (xd, now);
1944 * check each time through the loop in case intervals are changed
1946 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1947 dm->link_state_poll_interval : dm->stat_poll_interval;
1949 vlib_process_wait_for_event_or_clock (vm, min_wait);
1951 if (dm->admin_up_down_in_progress)
1952 /* skip the poll if an admin up down is in progress (on any interface) */
1955 vec_foreach (xd, dm->devices)
1957 f64 now = vlib_time_now (vm);
1958 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1959 dpdk_update_counters (xd, now);
1960 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1961 dpdk_update_link_state (xd, now);
1970 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1971 .function = dpdk_process,
1972 .type = VLIB_NODE_TYPE_PROCESS,
1973 .name = "dpdk-process",
1974 .process_log2_n_stack_bytes = 17,
1978 static clib_error_t *
1979 dpdk_init (vlib_main_t * vm)
1981 dpdk_main_t *dm = &dpdk_main;
1982 clib_error_t *error = 0;
1984 /* verify that structs are cacheline aligned */
1985 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1986 "Cache line marker must be 1st element in dpdk_device_t");
1987 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1988 CLIB_CACHE_LINE_BYTES,
1989 "Data in cache line 0 is bigger than cache line size");
1990 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1991 "Cache line marker must be 1st element in frame_queue_trace_t");
1993 dpdk_cli_reference ();
1996 dm->vnet_main = vnet_get_main ();
1997 dm->conf = &dpdk_config_main;
1999 dm->conf->nchannels = 4;
2000 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
2002 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
2003 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
2004 VLIB_BUFFER_EXT_HDR_VALID |
2005 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
2006 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
2008 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
2009 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
2011 dm->log_default = vlib_log_register_class ("dpdk", 0);
2012 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
2013 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
2018 VLIB_INIT_FUNCTION (dpdk_init);
2021 * fd.io coding-style-patch-verification: ON
2024 * eval: (c-set-style "gnu")