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 dpdk_main_t dpdk_main;
47 dpdk_config_main_t dpdk_config_main;
49 #define LINK_STATE_ELOGS 0
51 /* dev_info.speed_capa -> interface name mapppings */
56 } if_name_prefixes[] = {
57 /* sorted, higher speed first */
58 { ETH_LINK_SPEED_200G, "TwoHundredGigabitEthernet" },
59 { ETH_LINK_SPEED_100G, "HundredGigabitEthernet" },
60 { ETH_LINK_SPEED_56G, "FiftySixGigabitEthernet" },
61 { ETH_LINK_SPEED_50G, "FiftyGigabitEthernet" },
62 { ETH_LINK_SPEED_40G, "FortyGigabitEthernet" },
63 { ETH_LINK_SPEED_25G, "TwentyFiveGigabitEthernet" },
64 { ETH_LINK_SPEED_20G, "TwentyGigabitEthernet" },
65 { ETH_LINK_SPEED_10G, "TenGigabitEthernet" },
66 { ETH_LINK_SPEED_5G, "FiveGigabitEthernet" },
67 { ETH_LINK_SPEED_2_5G, "TwoDotFiveGigabitEthernet" },
68 { ETH_LINK_SPEED_1G, "GigabitEthernet" },
72 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
74 dpdk_main_t *dm = &dpdk_main;
75 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
76 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
80 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
81 /* set to L3/non-promisc mode */
82 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_PROMISC, 0);
84 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
85 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_PROMISC, 1);
87 case ETHERNET_INTERFACE_FLAG_MTU:
88 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
89 rte_eth_dev_stop (xd->port_id);
90 rte_eth_dev_set_mtu (xd->port_id, hi->max_packet_bytes);
91 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
92 rte_eth_dev_start (xd->port_id);
93 dpdk_log_debug ("[%u] mtu changed to %u", xd->port_id,
94 hi->max_packet_bytes);
100 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
102 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
103 rte_eth_promiscuous_enable (xd->port_id);
105 rte_eth_promiscuous_disable (xd->port_id);
111 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
112 return value 1: exist.
113 return value 0: not exist.
121 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
122 DIR *dir_cache = opendir (sys_cache_dir);
124 if (dir_cache == NULL)
127 while ((dp = readdir (dir_cache)) != NULL)
129 if (dp->d_type == DT_DIR)
132 int level_cache = -1;
134 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
135 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
136 clib_error_free (err);
138 if (level_cache == 3)
140 closedir (dir_cache);
146 if (dir_cache != NULL)
147 closedir (dir_cache);
152 static dpdk_device_config_t *
153 dpdk_find_startup_config (struct rte_eth_dev_info *di)
155 dpdk_main_t *dm = &dpdk_main;
156 struct rte_pci_device *pci_dev;
157 struct rte_vmbus_device *vmbus_dev;
158 vlib_pci_addr_t pci_addr;
159 vlib_vmbus_addr_t vmbus_addr;
162 if ((pci_dev = dpdk_get_pci_device (di)))
164 pci_addr.domain = pci_dev->addr.domain;
165 pci_addr.bus = pci_dev->addr.bus;
166 pci_addr.slot = pci_dev->addr.devid;
167 pci_addr.function = pci_dev->addr.function;
169 hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
172 if ((vmbus_dev = dpdk_get_vmbus_device (di)))
174 unformat_input_t input_vmbus;
175 unformat_init_string (&input_vmbus, di->device->name,
176 strlen (di->device->name));
177 if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr, &vmbus_addr))
178 p = mhash_get (&dm->conf->device_config_index_by_vmbus_addr,
180 unformat_free (&input_vmbus);
184 return pool_elt_at_index (dm->conf->dev_confs, p[0]);
185 return &dm->conf->default_devconf;
188 static clib_error_t *
189 dpdk_lib_init (dpdk_main_t * dm)
191 vnet_main_t *vnm = vnet_get_main ();
193 vlib_thread_main_t *tm = vlib_get_thread_main ();
194 vnet_device_main_t *vdm = &vnet_device_main;
195 vnet_sw_interface_t *sw;
196 vnet_hw_interface_t *hi;
200 /* vlib_buffer_t template */
201 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
202 CLIB_CACHE_LINE_BYTES);
203 for (int i = 0; i < tm->n_vlib_mains; i++)
205 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
206 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
207 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
211 dm->conf->interface_name_format_decimal ? "%d/%d/%d" : "%x/%x/%x";
213 /* device config defaults */
214 dm->default_port_conf.n_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
215 dm->default_port_conf.n_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
216 dm->default_port_conf.n_rx_queues = 1;
217 dm->default_port_conf.n_tx_queues = tm->n_vlib_mains;
218 dm->default_port_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
219 dm->default_port_conf.max_lro_pkt_size = DPDK_MAX_LRO_SIZE_DEFAULT;
221 if ((clib_mem_get_default_hugepage_size () == 2 << 20) &&
222 check_l3cache () == 0)
223 dm->default_port_conf.n_rx_desc = dm->default_port_conf.n_tx_desc = 512;
225 RTE_ETH_FOREACH_DEV (port_id)
229 struct rte_eth_dev_info di;
230 dpdk_device_config_t *devconf = 0;
231 vnet_eth_interface_registration_t eir = {};
234 if (!rte_eth_dev_is_valid_port (port_id))
237 if ((rv = rte_eth_dev_info_get (port_id, &di)) != 0)
239 dpdk_log_warn ("[%u] failed to get device info. skipping device.",
246 dpdk_log_warn ("[%u] missing device info. Skipping '%s' device",
247 port_id, di.driver_name);
251 devconf = dpdk_find_startup_config (&di);
253 /* If device is blacklisted, we should skip it */
254 if (devconf->is_blacklisted)
256 dpdk_log_notice ("[%d] Device %s blacklisted. Skipping...", port_id,
261 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
262 xd->port_id = port_id;
263 xd->device_index = xd - dm->devices;
264 xd->per_interface_next_index = ~0;
266 clib_memcpy (&xd->conf, &dm->default_port_conf,
267 sizeof (dpdk_port_conf_t));
269 /* find driver datea for this PMD */
270 if ((dr = dpdk_driver_find (di.driver_name, &xd->if_desc)))
273 xd->supported_flow_actions = dr->supported_flow_actions;
274 xd->conf.disable_rss = dr->mq_mode_none;
275 xd->conf.disable_rx_scatter = dr->disable_rx_scatter;
276 if (dr->use_intel_phdr_cksum)
277 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
278 if (dr->int_unmaskable)
279 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
282 dpdk_log_warn ("[%u] unknown driver '%s'", port_id, di.driver_name);
286 xd->name = devconf->name;
290 struct rte_pci_device *pci_dev;
291 if (dr && dr->interface_name_prefix)
293 /* prefix override by driver */
294 xd->name = format (xd->name, "%s", dr->interface_name_prefix);
298 /* interface name prefix from speed_capa */
299 u64 mask = ~((if_name_prefixes[0].link_speed << 1) - 1);
301 if (di.speed_capa & mask)
302 dpdk_log_warn ("[%u] unknown speed capability 0x%x reported",
303 xd->port_id, di.speed_capa & mask);
305 for (int i = 0; i < ARRAY_LEN (if_name_prefixes); i++)
306 if (if_name_prefixes[i].link_speed & di.speed_capa)
309 format (xd->name, "%s", if_name_prefixes[i].pfx);
313 xd->name = format (xd->name, "Ethernet");
316 if (dr && dr->interface_number_from_port_id)
317 xd->name = format (xd->name, "%u", port_id);
318 else if ((pci_dev = dpdk_get_pci_device (&di)))
319 xd->name = format (xd->name, if_num_fmt, pci_dev->addr.bus,
320 pci_dev->addr.devid, pci_dev->addr.function);
322 xd->name = format (xd->name, "%u", port_id);
325 /* Handle representor devices that share the same PCI ID */
326 if ((di.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) &&
327 (di.switch_info.port_id != (uint16_t) -1))
328 xd->name = format (xd->name, "/%d", di.switch_info.port_id);
330 /* number of RX and TX queues */
331 if (devconf->num_tx_queues > 0 &&
332 devconf->num_tx_queues < xd->conf.n_tx_queues)
333 xd->conf.n_tx_queues = devconf->num_tx_queues;
335 if (devconf->num_rx_queues > 1 &&
336 di.max_rx_queues >= devconf->num_rx_queues)
338 xd->conf.n_rx_queues = devconf->num_rx_queues;
341 u64 unsupported_bits;
342 xd->conf.rss_hf = devconf->rss_fn;
343 unsupported_bits = xd->conf.rss_hf;
344 unsupported_bits &= ~di.flow_type_rss_offloads;
345 if (unsupported_bits)
346 dpdk_log_warn ("Unsupported RSS hash functions: %U",
347 format_dpdk_rss_hf_name, unsupported_bits);
349 xd->conf.rss_hf &= di.flow_type_rss_offloads;
352 /* number of RX and TX tescriptors */
353 if (devconf->num_rx_desc)
354 xd->conf.n_rx_desc = devconf->num_rx_desc;
355 else if (dr && dr->n_rx_desc)
356 xd->conf.n_rx_desc = dr->n_rx_desc;
358 if (devconf->num_tx_desc)
359 xd->conf.n_tx_desc = devconf->num_tx_desc;
360 else if (dr && dr->n_tx_desc)
361 xd->conf.n_tx_desc = dr->n_tx_desc;
363 vec_validate_aligned (xd->rx_queues, xd->conf.n_rx_queues - 1,
364 CLIB_CACHE_LINE_BYTES);
366 rte_eth_macaddr_get (port_id, (void *) addr);
368 /* create interface */
369 eir.dev_class_index = dpdk_device_class.index;
370 eir.dev_instance = xd->device_index;
372 eir.cb.flag_change = dpdk_flag_change;
373 xd->hw_if_index = vnet_eth_register_interface (vnm, &eir);
374 hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
375 hi->numa_node = xd->cpu_socket = (i8) rte_eth_dev_socket_id (port_id);
376 sw = vnet_get_hw_sw_interface (vnm, xd->hw_if_index);
377 xd->sw_if_index = sw->sw_if_index;
378 dpdk_log_debug ("[%u] interface %s created", port_id, hi->name);
380 ethernet_set_flags (vnm, xd->hw_if_index,
381 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
383 /* assign worker threads */
384 vnet_hw_if_set_input_node (vnm, xd->hw_if_index, dpdk_input_node.index);
385 if (devconf->workers)
389 clib_bitmap_foreach (j, devconf->workers)
391 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
392 rxq->queue_index = vnet_hw_if_register_rx_queue (
393 vnm, xd->hw_if_index, q++, vdm->first_worker_thread_index + j);
397 for (q = 0; q < xd->conf.n_rx_queues; q++)
399 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
400 rxq->queue_index = vnet_hw_if_register_rx_queue (
401 vnm, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
404 if (devconf->tso == DPDK_DEVICE_TSO_ON)
406 /*tcp_udp checksum must be enabled*/
407 if (xd->conf.enable_tcp_udp_checksum == 0)
408 dpdk_log_warn ("[%u] TCP/UDP checksum offload must be enabled",
410 else if ((di.tx_offload_capa & DEV_TX_OFFLOAD_TCP_TSO) == 0)
411 dpdk_log_warn ("[%u] TSO not supported by device", xd->port_id);
413 xd->conf.enable_tso = 1;
416 if (devconf->max_lro_pkt_size)
417 xd->conf.max_lro_pkt_size = devconf->max_lro_pkt_size;
419 dpdk_device_setup (xd);
421 /* rss queues should be configured after dpdk_device_setup() */
422 if (devconf->rss_queues)
424 if (vnet_hw_interface_set_rss_queues (vnet_get_main (), hi,
425 devconf->rss_queues))
426 dpdk_log_warn ("[%u] Failed to set rss queues", port_id);
429 if (vec_len (xd->errors))
430 dpdk_log_err ("[%u] setup failed Errors:\n %U", port_id,
431 format_dpdk_device_errors, xd);
434 for (int i = 0; i < vec_len (dm->devices); i++)
435 vnet_hw_if_update_runtime_data (vnm, dm->devices[i].hw_if_index);
441 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
443 vlib_main_t *vm = vlib_get_main ();
446 int num_whitelisted = vec_len (conf->dev_confs);
447 vlib_pci_device_info_t *d = 0;
448 vlib_pci_addr_t *addr = 0, *addrs;
451 addrs = vlib_pci_get_all_dev_addrs ();
453 vec_foreach (addr, addrs)
455 dpdk_device_config_t * devconf = 0;
456 vec_reset_length (pci_addr);
457 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
460 vlib_pci_free_device_info (d);
463 d = vlib_pci_get_device_info (vm, addr, &error);
466 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
467 clib_error_free (error);
471 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
476 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
484 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
487 /* Enforce Device blacklist by vendor and device */
488 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
491 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
492 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
493 if (d->vendor_id == vendor && d->device_id == device)
496 * Expected case: device isn't whitelisted,
501 /* Device is blacklisted */
502 pool_get (conf->dev_confs, devconf);
503 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
504 devconf - conf->dev_confs);
505 devconf->pci_addr.as_u32 = addr->as_u32;
506 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
507 devconf->is_blacklisted = 1;
510 else /* explicitly whitelisted, ignore the device blacklist */
516 if (d->vendor_id == 0x1af4 &&
517 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
518 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
521 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
524 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
525 * the default is to put it in the blacklist.
529 pool_get (conf->dev_confs, devconf);
530 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
531 devconf - conf->dev_confs);
532 devconf->pci_addr.as_u32 = addr->as_u32;
533 devconf->is_blacklisted = 1;
536 /* all Intel network devices */
537 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
539 /* all Intel QAT devices VFs */
540 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
541 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
542 d->device_id == 0x37c9 || d->device_id == 0x6f55))
545 else if (d->vendor_id == 0x1137 &&
546 (d->device_id == 0x0043 || d->device_id == 0x0071))
549 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
551 /* Amazon Elastic Network Adapter */
552 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
554 /* Cavium Network Adapter */
555 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
557 /* Cavium FastlinQ QL41000 Series */
558 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
560 /* Mellanox CX3, CX3VF */
561 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
565 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
566 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
570 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
571 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
575 /* Broadcom NetXtreme S, and E series only */
576 else if (d->vendor_id == 0x14e4 &&
577 ((d->device_id >= 0x16c0 &&
578 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
579 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
580 d->device_id != 0x16fd && d->device_id != 0x16fe &&
581 d->device_id != 0x170d && d->device_id != 0x170c &&
582 d->device_id != 0x170e && d->device_id != 0x1712 &&
583 d->device_id != 0x1713) ||
584 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
585 d->device_id == 0x1614 || d->device_id == 0x1606 ||
586 d->device_id == 0x1609 || d->device_id == 0x1614)))
590 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
591 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
596 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
602 pool_get (conf->dev_confs, devconf);
603 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
604 devconf - conf->dev_confs);
605 devconf->pci_addr.as_u32 = addr->as_u32;
607 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
608 devconf->is_blacklisted = 1;
609 clib_error_report (error);
614 vlib_pci_free_device_info (d);
618 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
621 vlib_vmbus_addr_t *addrs, *addr = 0;
622 int num_whitelisted = vec_len (conf->dev_confs);
625 addrs = vlib_vmbus_get_all_dev_addrs ();
628 vec_foreach (addr, addrs)
630 dpdk_device_config_t *devconf = 0;
634 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
637 /* No devices blacklisted, but have whitelisted. blacklist all
639 pool_get (conf->dev_confs, devconf);
640 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
641 devconf - conf->dev_confs, 0);
642 devconf->vmbus_addr = *addr;
643 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
644 devconf->is_blacklisted = 1;
649 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
652 /* Enforce Device blacklist by vmbus_addr */
653 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
655 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
656 vlib_vmbus_addr_t *a2 = addr;
657 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
661 /* Device not whitelisted */
662 pool_get (conf->dev_confs, devconf);
663 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
664 devconf - conf->dev_confs, 0);
665 devconf->vmbus_addr = *addr;
666 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
667 devconf->is_blacklisted = 1;
677 error = vlib_vmbus_bind_to_uio (addr);
682 pool_get (conf->dev_confs, devconf);
683 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
684 devconf - conf->dev_confs, 0);
685 devconf->vmbus_addr = *addr;
687 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
688 devconf->is_blacklisted = 1;
689 clib_error_report (error);
696 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
698 uword *max_simd_bitwidth = va_arg (*va, uword *);
700 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
702 if (!unformat (input, "%u", max_simd_bitwidth))
705 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
706 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
714 static clib_error_t *
715 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
716 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
719 clib_error_t *error = 0;
721 dpdk_device_config_t *devconf = 0;
722 unformat_input_t sub_input;
726 devconf = &conf->default_devconf;
728 else if (addr_type == VNET_DEV_ADDR_PCI)
730 p = hash_get (conf->device_config_index_by_pci_addr,
731 ((vlib_pci_addr_t *) (addr))->as_u32);
735 pool_get (conf->dev_confs, devconf);
736 hash_set (conf->device_config_index_by_pci_addr,
737 ((vlib_pci_addr_t *) (addr))->as_u32,
738 devconf - conf->dev_confs);
741 return clib_error_return (0,
742 "duplicate configuration for PCI address %U",
743 format_vlib_pci_addr, addr);
745 else if (addr_type == VNET_DEV_ADDR_VMBUS)
747 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
748 (vlib_vmbus_addr_t *) (addr));
752 pool_get (conf->dev_confs, devconf);
753 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
754 devconf - conf->dev_confs, 0);
757 return clib_error_return (
758 0, "duplicate configuration for VMBUS address %U",
759 format_vlib_vmbus_addr, addr);
762 if (addr_type == VNET_DEV_ADDR_PCI)
764 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
765 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
766 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
768 else if (addr_type == VNET_DEV_ADDR_VMBUS)
770 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
771 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
772 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
778 unformat_skip_white_space (input);
779 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
781 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
783 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
785 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
787 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
789 else if (unformat (input, "name %v", &devconf->name))
791 else if (unformat (input, "workers %U", unformat_bitmap_list,
796 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
798 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
802 else if (unformat (input, "tso on"))
804 devconf->tso = DPDK_DEVICE_TSO_ON;
806 else if (unformat (input, "tso off"))
808 devconf->tso = DPDK_DEVICE_TSO_OFF;
810 else if (unformat (input, "devargs %s", &devconf->devargs))
812 else if (unformat (input, "rss-queues %U",
813 unformat_bitmap_list, &devconf->rss_queues))
815 else if (unformat (input, "max-lro-pkt-size %u",
816 &devconf->max_lro_pkt_size))
820 error = clib_error_return (0, "unknown input `%U'",
821 format_unformat_error, input);
829 if (devconf->workers && devconf->num_rx_queues == 0)
830 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
831 else if (devconf->workers &&
832 clib_bitmap_count_set_bits (devconf->workers) !=
833 devconf->num_rx_queues)
834 error = clib_error_return (0,
835 "%U: number of worker threads must be "
836 "equal to number of rx queues",
837 format_vlib_pci_addr, addr);
842 static clib_error_t *
843 dpdk_log_read_ready (clib_file_t * uf)
845 unformat_input_t input;
852 uword len = vec_len (s);
853 vec_resize (s, len + n_try);
855 n = read (uf->file_descriptor, s + len, n_try);
856 if (n < 0 && errno != EAGAIN)
857 return clib_error_return_unix (0, "read");
858 _vec_len (s) = len + (n < 0 ? 0 : n);
861 unformat_init_vector (&input, s);
863 while (unformat_user (&input, unformat_line, &line))
868 /* unfortunatelly DPDK polutes log with this error messages
869 * even when we pass --in-memory which means no secondary process */
870 if (strstr ((char *) line, "WARNING! Base virtual address hint"))
872 else if (strstr ((char *) line, "This may cause issues with mapping "
873 "memory into secondary processes"))
877 dpdk_log_notice ("%v", line);
881 unformat_free (&input);
885 static clib_error_t *
886 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
888 dpdk_main_t *dm = &dpdk_main;
889 clib_error_t *error = 0;
890 dpdk_config_main_t *conf = &dpdk_config_main;
891 vlib_thread_main_t *tm = vlib_get_thread_main ();
892 dpdk_device_config_t *devconf;
893 vlib_pci_addr_t pci_addr = { 0 };
894 vlib_vmbus_addr_t vmbus_addr = { 0 };
895 unformat_input_t sub_input;
896 uword default_hugepage_sz, x;
899 int num_whitelisted = 0;
900 int eal_no_hugetlb = 0;
905 u8 *huge_dir_path = 0;
906 u32 vendor, device, domain, bus, func;
909 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
911 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
912 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
913 sizeof (vlib_vmbus_addr_t));
915 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
918 if (unformat (input, "no-hugetlb"))
920 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
923 else if (unformat (input, "telemetry"))
924 conf->enable_telemetry = 1;
926 else if (unformat (input, "enable-tcp-udp-checksum"))
928 dm->default_port_conf.enable_tcp_udp_checksum = 1;
929 if (unformat (input, "enable-outer-checksum-offload"))
930 dm->default_port_conf.enable_outer_checksum_offload = 1;
932 else if (unformat (input, "no-tx-checksum-offload"))
933 dm->default_port_conf.disable_tx_checksum_offload = 1;
935 else if (unformat (input, "decimal-interface-names"))
936 conf->interface_name_format_decimal = 1;
938 else if (unformat (input, "no-multi-seg"))
939 dm->default_port_conf.disable_multi_seg = 1;
940 else if (unformat (input, "enable-lro"))
941 dm->default_port_conf.enable_lro = 1;
942 else if (unformat (input, "max-simd-bitwidth %U",
943 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
945 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
949 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
956 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
957 unformat_vlib_cli_sub_input, &sub_input))
959 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
967 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
970 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
977 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
978 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
980 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
988 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
992 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
999 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1001 else if (unformat (input, "socket-mem %s", &socket_mem))
1003 else if (unformat (input, "no-pci"))
1006 tmp = format (0, "--no-pci%c", 0);
1007 vec_add1 (conf->eal_init_args, tmp);
1009 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1012 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1016 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1018 tmp = format (0, "-b%c", 0);
1019 vec_add1 (conf->eal_init_args, tmp);
1021 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1022 vec_add1 (conf->eal_init_args, tmp);
1024 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1026 u32 blacklist_entry;
1027 if (vendor > 0xFFFF)
1028 return clib_error_return (0, "blacklist PCI vendor out of range");
1029 if (device > 0xFFFF)
1030 return clib_error_return (0, "blacklist PCI device out of range");
1031 blacklist_entry = (vendor << 16) | (device & 0xffff);
1032 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1035 else if (unformat (input, "no-vmbus"))
1038 tmp = format (0, "--no-vmbus%c", 0);
1039 vec_add1 (conf->eal_init_args, tmp);
1043 else if (unformat(input, #a)) \
1045 tmp = format (0, "--%s%c", #a, 0); \
1046 vec_add1 (conf->eal_init_args, tmp); \
1048 foreach_eal_double_hyphen_predicate_arg
1051 else if (unformat(input, #a " %s", &s)) \
1053 if (!strncmp(#a, "file-prefix", 11)) \
1055 tmp = format (0, "--%s%c", #a, 0); \
1056 vec_add1 (conf->eal_init_args, tmp); \
1058 if (!strncmp(#a, "vdev", 4)) \
1059 if (strstr((char*)s, "af_packet")) \
1060 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1061 vec_add1 (conf->eal_init_args, s); \
1063 foreach_eal_double_hyphen_arg
1066 else if (unformat(input, #a " %s", &s)) \
1068 tmp = format (0, "-%s%c", #b, 0); \
1069 vec_add1 (conf->eal_init_args, tmp); \
1071 vec_add1 (conf->eal_init_args, s); \
1073 foreach_eal_single_hyphen_arg
1075 else if (unformat (input, "default"))
1078 else if (unformat_skip_white_space (input))
1082 error = clib_error_return (0, "unknown input `%U'",
1083 format_unformat_error, input);
1088 if (!conf->uio_driver_name)
1089 conf->uio_driver_name = format (0, "auto%c", 0);
1091 if (eal_no_hugetlb == 0)
1093 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1095 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1098 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1102 /* preallocate at least 16MB of hugepages per socket,
1103 if more is needed it is up to consumer to preallocate more */
1104 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1105 n_pages /= default_hugepage_sz;
1107 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1108 clib_error_report (e);
1113 /* on/off dpdk's telemetry thread */
1114 if (conf->enable_telemetry == 0)
1116 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1121 tmp = format (0, "--file-prefix%c", 0);
1122 vec_add1 (conf->eal_init_args, tmp);
1123 tmp = format (0, "vpp%c", 0);
1124 vec_add1 (conf->eal_init_args, tmp);
1130 if (no_pci == 0 && geteuid () == 0)
1131 dpdk_bind_devices_to_uio (conf);
1133 if (no_vmbus == 0 && geteuid () == 0)
1134 dpdk_bind_vmbus_devices_to_uio (conf);
1137 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1138 devconf->x = conf->default_devconf.x ;
1140 pool_foreach (devconf, conf->dev_confs) {
1142 /* default per-device config items */
1143 foreach_dpdk_device_config_item
1145 /* copy tso config from default device */
1148 /* copy tso config from default device */
1151 /* copy rss_queues config from default device */
1154 /* add DPDK EAL whitelist/blacklist entry */
1155 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1156 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1158 tmp = format (0, "-a%c", 0);
1159 vec_add1 (conf->eal_init_args, tmp);
1160 if (devconf->devargs)
1162 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1163 &devconf->pci_addr, devconf->devargs, 0);
1167 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1169 vec_add1 (conf->eal_init_args, tmp);
1171 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1172 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1174 tmp = format (0, "-b%c", 0);
1175 vec_add1 (conf->eal_init_args, tmp);
1176 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1177 vec_add1 (conf->eal_init_args, tmp);
1184 clib_warning ("socket-mem argument is deprecated");
1186 /* NULL terminate the "argv" vector, in case of stupidity */
1187 vec_add1 (conf->eal_init_args, 0);
1188 _vec_len (conf->eal_init_args) -= 1;
1190 /* Set up DPDK eal and packet mbuf pool early. */
1192 int log_fds[2] = { 0 };
1193 if (pipe (log_fds) == 0)
1195 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1197 FILE *f = fdopen (log_fds[1], "a");
1198 if (f && rte_openlog_stream (f) == 0)
1200 clib_file_t t = { 0 };
1201 t.read_function = dpdk_log_read_ready;
1202 t.file_descriptor = log_fds[0];
1203 t.description = format (0, "DPDK logging pipe");
1204 clib_file_add (&file_main, &t);
1214 vm = vlib_get_main ();
1216 /* make copy of args as rte_eal_init tends to mess up with arg array */
1217 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1218 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1219 conf->eal_init_args[i]);
1221 vec_terminate_c_string (conf->eal_init_args_str);
1223 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1224 ret = rte_eal_init (vec_len (conf->eal_init_args),
1225 (char **) conf->eal_init_args);
1227 /* enable the AVX-512 vPMDs in DPDK */
1228 if (clib_cpu_supports_avx512_bitalg () &&
1229 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1230 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1231 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1232 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1233 DPDK_MAX_SIMD_BITWIDTH_256 ?
1237 /* lazy umount hugepages */
1238 umount2 ((char *) huge_dir_path, MNT_DETACH);
1239 rmdir ((char *) huge_dir_path);
1240 vec_free (huge_dir_path);
1243 return clib_error_return (0, "rte_eal_init returned %d", ret);
1245 /* main thread 1st */
1246 if ((error = dpdk_buffer_pools_create (vm)))
1253 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1256 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1258 vnet_main_t *vnm = vnet_get_main ();
1259 struct rte_eth_link prev_link = xd->link;
1261 u8 hw_flags_chg = 0;
1263 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1264 clib_memset (&xd->link, 0, sizeof (xd->link));
1265 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1267 if (LINK_STATE_ELOGS)
1269 ELOG_TYPE_DECLARE (e) =
1272 "update-link-state: sw_if_index %d, admin_up %d,"
1273 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1282 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1283 ed->sw_if_index = xd->sw_if_index;
1284 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1285 ed->old_link_state = (u8)
1286 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1287 ed->new_link_state = (u8) xd->link.link_status;
1290 if ((xd->link.link_duplex != prev_link.link_duplex))
1293 switch (xd->link.link_duplex)
1295 case ETH_LINK_HALF_DUPLEX:
1296 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1298 case ETH_LINK_FULL_DUPLEX:
1299 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1305 if (xd->link.link_speed != prev_link.link_speed)
1306 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1307 xd->link.link_speed * 1000);
1309 if (xd->link.link_status != prev_link.link_status)
1313 if (xd->link.link_status)
1314 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1319 if (LINK_STATE_ELOGS)
1321 ELOG_TYPE_DECLARE (e) =
1324 "update-link-state: sw_if_index %d, new flags %d",.format_args
1332 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1333 ed->sw_if_index = xd->sw_if_index;
1334 ed->flags = hw_flags;
1336 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1341 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1343 clib_error_t *error;
1344 dpdk_main_t *dm = &dpdk_main;
1346 vlib_thread_main_t *tm = vlib_get_thread_main ();
1348 error = dpdk_lib_init (dm);
1351 clib_error_report (error);
1353 if (dpdk_cryptodev_init)
1355 error = dpdk_cryptodev_init (vm);
1358 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1360 clib_error_free (error);
1364 tm->worker_thread_release = 1;
1366 f64 now = vlib_time_now (vm);
1367 vec_foreach (xd, dm->devices)
1369 dpdk_update_link_state (xd, now);
1375 * check each time through the loop in case intervals are changed
1377 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1378 dm->link_state_poll_interval : dm->stat_poll_interval;
1380 vlib_process_wait_for_event_or_clock (vm, min_wait);
1382 if (dm->admin_up_down_in_progress)
1383 /* skip the poll if an admin up down is in progress (on any interface) */
1386 vec_foreach (xd, dm->devices)
1388 f64 now = vlib_time_now (vm);
1389 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1390 dpdk_update_counters (xd, now);
1391 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1392 dpdk_update_link_state (xd, now);
1401 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1402 .function = dpdk_process,
1403 .type = VLIB_NODE_TYPE_PROCESS,
1404 .name = "dpdk-process",
1405 .process_log2_n_stack_bytes = 17,
1409 static clib_error_t *
1410 dpdk_init (vlib_main_t * vm)
1412 dpdk_main_t *dm = &dpdk_main;
1413 clib_error_t *error = 0;
1415 /* verify that structs are cacheline aligned */
1416 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1417 "Cache line marker must be 1st element in dpdk_device_t");
1418 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1419 CLIB_CACHE_LINE_BYTES,
1420 "Data in cache line 0 is bigger than cache line size");
1421 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1422 "Cache line marker must be 1st element in frame_queue_trace_t");
1424 dpdk_cli_reference ();
1426 dm->conf = &dpdk_config_main;
1428 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1430 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1431 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1433 dm->log_default = vlib_log_register_class ("dpdk", 0);
1434 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1439 VLIB_INIT_FUNCTION (dpdk_init);
1441 static clib_error_t *
1442 dpdk_worker_thread_init (vlib_main_t *vm)
1444 if (rte_thread_register () < 0)
1445 clib_panic ("dpdk: cannot register thread %u - %s", vm->thread_index,
1446 rte_strerror (rte_errno));
1450 VLIB_WORKER_INIT_FUNCTION (dpdk_worker_thread_init);