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/vnet.h>
25 #include <vnet/ethernet/ethernet.h>
26 #include <vnet/interface/rx_queue_funcs.h>
27 #include <dpdk/buffer.h>
28 #include <dpdk/device/dpdk.h>
29 #include <dpdk/cryptodev/cryptodev.h>
30 #include <vlib/pci/pci.h>
31 #include <vlib/vmbus/vmbus.h>
40 #include <sys/mount.h>
45 #include <dpdk/device/dpdk_priv.h>
47 dpdk_main_t dpdk_main;
48 dpdk_config_main_t dpdk_config_main;
50 #define LINK_STATE_ELOGS 0
52 /* dev_info.speed_capa -> interface name mapppings */
57 } if_name_prefixes[] = {
58 /* sorted, higher speed first */
59 { ETH_LINK_SPEED_200G, "TwoHundredGigabitEthernet" },
60 { ETH_LINK_SPEED_100G, "HundredGigabitEthernet" },
61 { ETH_LINK_SPEED_56G, "FiftySixGigabitEthernet" },
62 { ETH_LINK_SPEED_50G, "FiftyGigabitEthernet" },
63 { ETH_LINK_SPEED_40G, "FortyGigabitEthernet" },
64 { ETH_LINK_SPEED_25G, "TwentyFiveGigabitEthernet" },
65 { ETH_LINK_SPEED_20G, "TwentyGigabitEthernet" },
66 { ETH_LINK_SPEED_10G, "TenGigabitEthernet" },
67 { ETH_LINK_SPEED_5G, "FiveGigabitEthernet" },
68 { ETH_LINK_SPEED_2_5G, "TwoDotFiveGigabitEthernet" },
69 { ETH_LINK_SPEED_1G, "GigabitEthernet" },
73 dpdk_set_max_frame_size (vnet_main_t *vnm, vnet_hw_interface_t *hi,
76 dpdk_main_t *dm = &dpdk_main;
77 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
81 mtu = frame_size - xd->driver_frame_overhead;
83 rv = rte_eth_dev_set_mtu (xd->port_id, mtu);
87 dpdk_log_err ("[%u] rte_eth_dev_set_mtu failed (mtu %u, rv %d)",
88 xd->port_id, mtu, rv);
92 return vnet_error (VNET_ERR_UNSUPPORTED,
93 "dpdk driver doesn't support MTU change");
95 return vnet_error (VNET_ERR_BUSY, "port is running");
97 return vnet_error (VNET_ERR_INVALID_VALUE, "invalid MTU");
99 return vnet_error (VNET_ERR_BUG,
100 "unexpected return value %d returned from "
101 "rte_eth_dev_set_mtu(...)",
106 dpdk_log_debug ("[%u] max_frame_size set to %u by setting MTU to %u",
107 xd->port_id, frame_size, mtu);
113 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
115 dpdk_main_t *dm = &dpdk_main;
116 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
117 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
121 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
122 /* set to L3/non-promisc mode */
123 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_PROMISC, 0);
125 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
126 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_PROMISC, 1);
132 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
134 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
135 rte_eth_promiscuous_enable (xd->port_id);
137 rte_eth_promiscuous_disable (xd->port_id);
143 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
144 return value 1: exist.
145 return value 0: not exist.
153 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
154 DIR *dir_cache = opendir (sys_cache_dir);
156 if (dir_cache == NULL)
159 while ((dp = readdir (dir_cache)) != NULL)
161 if (dp->d_type == DT_DIR)
164 int level_cache = -1;
166 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
167 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
168 clib_error_free (err);
170 if (level_cache == 3)
172 closedir (dir_cache);
178 if (dir_cache != NULL)
179 closedir (dir_cache);
184 static dpdk_device_config_t *
185 dpdk_find_startup_config (struct rte_eth_dev_info *di)
187 dpdk_main_t *dm = &dpdk_main;
188 struct rte_pci_device *pci_dev;
189 struct rte_vmbus_device *vmbus_dev;
190 vlib_pci_addr_t pci_addr;
191 vlib_vmbus_addr_t vmbus_addr;
194 if ((pci_dev = dpdk_get_pci_device (di)))
196 pci_addr.domain = pci_dev->addr.domain;
197 pci_addr.bus = pci_dev->addr.bus;
198 pci_addr.slot = pci_dev->addr.devid;
199 pci_addr.function = pci_dev->addr.function;
201 hash_get (dm->conf->device_config_index_by_pci_addr, pci_addr.as_u32);
204 if ((vmbus_dev = dpdk_get_vmbus_device (di)))
206 unformat_input_t input_vmbus;
207 unformat_init_string (&input_vmbus, di->device->name,
208 strlen (di->device->name));
209 if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr, &vmbus_addr))
210 p = mhash_get (&dm->conf->device_config_index_by_vmbus_addr,
212 unformat_free (&input_vmbus);
216 return pool_elt_at_index (dm->conf->dev_confs, p[0]);
217 return &dm->conf->default_devconf;
220 static clib_error_t *
221 dpdk_lib_init (dpdk_main_t * dm)
223 vnet_main_t *vnm = vnet_get_main ();
225 vlib_thread_main_t *tm = vlib_get_thread_main ();
226 vnet_device_main_t *vdm = &vnet_device_main;
227 vnet_sw_interface_t *sw;
228 vnet_hw_interface_t *hi;
232 /* vlib_buffer_t template */
233 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
234 CLIB_CACHE_LINE_BYTES);
235 for (int i = 0; i < tm->n_vlib_mains; i++)
237 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
238 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
239 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
243 dm->conf->interface_name_format_decimal ? "%d/%d/%d" : "%x/%x/%x";
245 /* device config defaults */
246 dm->default_port_conf.n_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
247 dm->default_port_conf.n_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
248 dm->default_port_conf.n_rx_queues = 1;
249 dm->default_port_conf.n_tx_queues = tm->n_vlib_mains;
250 dm->default_port_conf.rss_hf = ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
251 dm->default_port_conf.max_lro_pkt_size = DPDK_MAX_LRO_SIZE_DEFAULT;
253 if ((clib_mem_get_default_hugepage_size () == 2 << 20) &&
254 check_l3cache () == 0)
255 dm->default_port_conf.n_rx_desc = dm->default_port_conf.n_tx_desc = 512;
257 RTE_ETH_FOREACH_DEV (port_id)
261 struct rte_eth_dev_info di;
262 dpdk_device_config_t *devconf = 0;
263 vnet_eth_interface_registration_t eir = {};
266 if (!rte_eth_dev_is_valid_port (port_id))
269 if ((rv = rte_eth_dev_info_get (port_id, &di)) != 0)
271 dpdk_log_warn ("[%u] failed to get device info. skipping device.",
278 dpdk_log_warn ("[%u] missing device info. Skipping '%s' device",
279 port_id, di.driver_name);
283 devconf = dpdk_find_startup_config (&di);
285 /* If device is blacklisted, we should skip it */
286 if (devconf->is_blacklisted)
288 dpdk_log_notice ("[%d] Device %s blacklisted. Skipping...", port_id,
293 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
294 xd->port_id = port_id;
295 xd->device_index = xd - dm->devices;
296 xd->per_interface_next_index = ~0;
298 clib_memcpy (&xd->conf, &dm->default_port_conf,
299 sizeof (dpdk_port_conf_t));
301 /* find driver datea for this PMD */
302 if ((dr = dpdk_driver_find (di.driver_name, &xd->if_desc)))
305 xd->supported_flow_actions = dr->supported_flow_actions;
306 xd->conf.disable_rss = dr->mq_mode_none;
307 xd->conf.disable_rx_scatter = dr->disable_rx_scatter;
308 if (dr->use_intel_phdr_cksum)
309 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM, 1);
310 if (dr->int_unmaskable)
311 dpdk_device_flag_set (xd, DPDK_DEVICE_FLAG_INT_UNMASKABLE, 1);
314 dpdk_log_warn ("[%u] unknown driver '%s'", port_id, di.driver_name);
318 xd->name = devconf->name;
322 struct rte_pci_device *pci_dev;
323 if (dr && dr->interface_name_prefix)
325 /* prefix override by driver */
326 xd->name = format (xd->name, "%s", dr->interface_name_prefix);
330 /* interface name prefix from speed_capa */
331 u64 mask = ~((if_name_prefixes[0].link_speed << 1) - 1);
333 if (di.speed_capa & mask)
334 dpdk_log_warn ("[%u] unknown speed capability 0x%x reported",
335 xd->port_id, di.speed_capa & mask);
337 for (int i = 0; i < ARRAY_LEN (if_name_prefixes); i++)
338 if (if_name_prefixes[i].link_speed & di.speed_capa)
341 format (xd->name, "%s", if_name_prefixes[i].pfx);
345 xd->name = format (xd->name, "Ethernet");
348 if (dr && dr->interface_number_from_port_id)
349 xd->name = format (xd->name, "%u", port_id);
350 else if ((pci_dev = dpdk_get_pci_device (&di)))
351 xd->name = format (xd->name, if_num_fmt, pci_dev->addr.bus,
352 pci_dev->addr.devid, pci_dev->addr.function);
354 xd->name = format (xd->name, "%u", port_id);
357 /* Handle representor devices that share the same PCI ID */
358 if ((di.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) &&
359 (di.switch_info.port_id != (uint16_t) -1))
360 xd->name = format (xd->name, "/%d", di.switch_info.port_id);
362 /* number of RX and TX queues */
363 if (devconf->num_tx_queues > 0 &&
364 devconf->num_tx_queues < xd->conf.n_tx_queues)
365 xd->conf.n_tx_queues = devconf->num_tx_queues;
367 if (devconf->num_rx_queues > 1 &&
368 di.max_rx_queues >= devconf->num_rx_queues)
370 xd->conf.n_rx_queues = devconf->num_rx_queues;
373 u64 unsupported_bits;
374 xd->conf.rss_hf = devconf->rss_fn;
375 unsupported_bits = xd->conf.rss_hf;
376 unsupported_bits &= ~di.flow_type_rss_offloads;
377 if (unsupported_bits)
378 dpdk_log_warn ("Unsupported RSS hash functions: %U",
379 format_dpdk_rss_hf_name, unsupported_bits);
381 xd->conf.rss_hf &= di.flow_type_rss_offloads;
384 xd->driver_frame_overhead =
385 RTE_ETHER_HDR_LEN + 2 * RTE_VLAN_HLEN + RTE_ETHER_CRC_LEN;
386 #if RTE_VERSION >= RTE_VERSION_NUM(21, 11, 0, 0)
387 q = di.max_rx_pktlen - di.max_mtu;
389 if (q < xd->driver_frame_overhead && q > 0)
390 xd->driver_frame_overhead = q;
391 dpdk_log_debug ("[%u] min_mtu: %u, max_mtu: %u, min_rx_bufsize: %u, "
392 "max_rx_pktlen: %u, max_lro_pkt_size: %u",
393 xd->port_id, di.min_mtu, di.max_mtu, di.min_rx_bufsize,
394 di.max_rx_pktlen, di.max_lro_pkt_size);
396 dpdk_log_debug ("[%u] driver frame overhead is %u", port_id,
397 xd->driver_frame_overhead);
399 /* number of RX and TX tescriptors */
400 if (devconf->num_rx_desc)
401 xd->conf.n_rx_desc = devconf->num_rx_desc;
402 else if (dr && dr->n_rx_desc)
403 xd->conf.n_rx_desc = dr->n_rx_desc;
405 if (devconf->num_tx_desc)
406 xd->conf.n_tx_desc = devconf->num_tx_desc;
407 else if (dr && dr->n_tx_desc)
408 xd->conf.n_tx_desc = dr->n_tx_desc;
410 vec_validate_aligned (xd->rx_queues, xd->conf.n_rx_queues - 1,
411 CLIB_CACHE_LINE_BYTES);
413 rte_eth_macaddr_get (port_id, (void *) addr);
415 /* create interface */
416 eir.dev_class_index = dpdk_device_class.index;
417 eir.dev_instance = xd->device_index;
419 eir.cb.flag_change = dpdk_flag_change;
420 eir.cb.set_max_frame_size = dpdk_set_max_frame_size;
421 xd->hw_if_index = vnet_eth_register_interface (vnm, &eir);
422 hi = vnet_get_hw_interface (vnm, xd->hw_if_index);
423 hi->numa_node = xd->cpu_socket = (i8) rte_eth_dev_socket_id (port_id);
424 sw = vnet_get_hw_sw_interface (vnm, xd->hw_if_index);
425 xd->sw_if_index = sw->sw_if_index;
426 dpdk_log_debug ("[%u] interface %s created", port_id, hi->name);
428 ethernet_set_flags (vnm, xd->hw_if_index,
429 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
431 /* assign worker threads */
432 vnet_hw_if_set_input_node (vnm, xd->hw_if_index, dpdk_input_node.index);
433 if (devconf->workers)
437 clib_bitmap_foreach (j, devconf->workers)
439 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
440 rxq->queue_index = vnet_hw_if_register_rx_queue (
441 vnm, xd->hw_if_index, q++, vdm->first_worker_thread_index + j);
445 for (q = 0; q < xd->conf.n_rx_queues; q++)
447 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
448 rxq->queue_index = vnet_hw_if_register_rx_queue (
449 vnm, xd->hw_if_index, q, VNET_HW_IF_RXQ_THREAD_ANY);
452 if (devconf->tso == DPDK_DEVICE_TSO_ON)
454 /*tcp_udp checksum must be enabled*/
455 if (xd->conf.enable_tcp_udp_checksum == 0)
456 dpdk_log_warn ("[%u] TCP/UDP checksum offload must be enabled",
458 else if ((di.tx_offload_capa & DEV_TX_OFFLOAD_TCP_TSO) == 0)
459 dpdk_log_warn ("[%u] TSO not supported by device", xd->port_id);
461 xd->conf.enable_tso = 1;
464 if (devconf->max_lro_pkt_size)
465 xd->conf.max_lro_pkt_size = devconf->max_lro_pkt_size;
467 dpdk_device_setup (xd);
469 /* rss queues should be configured after dpdk_device_setup() */
470 if (devconf->rss_queues)
472 if (vnet_hw_interface_set_rss_queues (vnet_get_main (), hi,
473 devconf->rss_queues))
474 dpdk_log_warn ("[%u] Failed to set rss queues", port_id);
477 if (vec_len (xd->errors))
478 dpdk_log_err ("[%u] setup failed Errors:\n %U", port_id,
479 format_dpdk_device_errors, xd);
482 for (int i = 0; i < vec_len (dm->devices); i++)
483 vnet_hw_if_update_runtime_data (vnm, dm->devices[i].hw_if_index);
489 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
491 vlib_main_t *vm = vlib_get_main ();
494 int num_whitelisted = vec_len (conf->dev_confs);
495 vlib_pci_device_info_t *d = 0;
496 vlib_pci_addr_t *addr = 0, *addrs;
499 addrs = vlib_pci_get_all_dev_addrs ();
501 vec_foreach (addr, addrs)
503 dpdk_device_config_t * devconf = 0;
504 vec_reset_length (pci_addr);
505 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
508 vlib_pci_free_device_info (d);
511 d = vlib_pci_get_device_info (vm, addr, &error);
514 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
515 clib_error_free (error);
519 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
524 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
532 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
535 /* Enforce Device blacklist by vendor and device */
536 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
539 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
540 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
541 if (d->vendor_id == vendor && d->device_id == device)
544 * Expected case: device isn't whitelisted,
549 /* Device is blacklisted */
550 pool_get (conf->dev_confs, devconf);
551 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
552 devconf - conf->dev_confs);
553 devconf->pci_addr.as_u32 = addr->as_u32;
554 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
555 devconf->is_blacklisted = 1;
558 else /* explicitly whitelisted, ignore the device blacklist */
564 if (d->vendor_id == 0x1af4 &&
565 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
566 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
569 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
572 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
573 * the default is to put it in the blacklist.
577 pool_get (conf->dev_confs, devconf);
578 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
579 devconf - conf->dev_confs);
580 devconf->pci_addr.as_u32 = addr->as_u32;
581 devconf->is_blacklisted = 1;
584 /* all Intel network devices */
585 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
587 /* all Intel QAT devices VFs */
588 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
589 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
590 d->device_id == 0x37c9 || d->device_id == 0x6f55))
593 else if (d->vendor_id == 0x1137 &&
594 (d->device_id == 0x0043 || d->device_id == 0x0071))
597 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
599 /* Amazon Elastic Network Adapter */
600 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
602 /* Cavium Network Adapter */
603 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
605 /* Cavium FastlinQ QL41000 Series */
606 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
608 /* Mellanox CX3, CX3VF */
609 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
613 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
614 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
618 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
619 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
623 /* Broadcom NetXtreme S, and E series only */
624 else if (d->vendor_id == 0x14e4 &&
625 ((d->device_id >= 0x16c0 &&
626 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
627 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
628 d->device_id != 0x16fd && d->device_id != 0x16fe &&
629 d->device_id != 0x170d && d->device_id != 0x170c &&
630 d->device_id != 0x170e && d->device_id != 0x1712 &&
631 d->device_id != 0x1713) ||
632 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
633 d->device_id == 0x1614 || d->device_id == 0x1606 ||
634 d->device_id == 0x1609 || d->device_id == 0x1614)))
638 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
639 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
644 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
650 pool_get (conf->dev_confs, devconf);
651 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
652 devconf - conf->dev_confs);
653 devconf->pci_addr.as_u32 = addr->as_u32;
655 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
656 devconf->is_blacklisted = 1;
657 clib_error_report (error);
662 vlib_pci_free_device_info (d);
666 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
669 vlib_vmbus_addr_t *addrs, *addr = 0;
670 int num_whitelisted = vec_len (conf->dev_confs);
673 addrs = vlib_vmbus_get_all_dev_addrs ();
676 vec_foreach (addr, addrs)
678 dpdk_device_config_t *devconf = 0;
682 mhash_get (&conf->device_config_index_by_vmbus_addr, addr);
685 /* No devices blacklisted, but have whitelisted. blacklist all
687 pool_get (conf->dev_confs, devconf);
688 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
689 devconf - conf->dev_confs, 0);
690 devconf->vmbus_addr = *addr;
691 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
692 devconf->is_blacklisted = 1;
697 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
700 /* Enforce Device blacklist by vmbus_addr */
701 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
703 vlib_vmbus_addr_t *a1 = &conf->blacklist_by_vmbus_addr[i];
704 vlib_vmbus_addr_t *a2 = addr;
705 if (memcmp (a1, a2, sizeof (vlib_vmbus_addr_t)) == 0)
709 /* Device not whitelisted */
710 pool_get (conf->dev_confs, devconf);
711 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
712 devconf - conf->dev_confs, 0);
713 devconf->vmbus_addr = *addr;
714 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
715 devconf->is_blacklisted = 1;
725 error = vlib_vmbus_bind_to_uio (addr);
730 pool_get (conf->dev_confs, devconf);
731 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
732 devconf - conf->dev_confs, 0);
733 devconf->vmbus_addr = *addr;
735 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
736 devconf->is_blacklisted = 1;
737 clib_error_report (error);
744 unformat_max_simd_bitwidth (unformat_input_t *input, va_list *va)
746 uword *max_simd_bitwidth = va_arg (*va, uword *);
748 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
750 if (!unformat (input, "%u", max_simd_bitwidth))
753 if (*max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_256 &&
754 *max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_512)
762 static clib_error_t *
763 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
764 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
767 clib_error_t *error = 0;
769 dpdk_device_config_t *devconf = 0;
770 unformat_input_t sub_input;
774 devconf = &conf->default_devconf;
776 else if (addr_type == VNET_DEV_ADDR_PCI)
778 p = hash_get (conf->device_config_index_by_pci_addr,
779 ((vlib_pci_addr_t *) (addr))->as_u32);
783 pool_get (conf->dev_confs, devconf);
784 hash_set (conf->device_config_index_by_pci_addr,
785 ((vlib_pci_addr_t *) (addr))->as_u32,
786 devconf - conf->dev_confs);
789 return clib_error_return (0,
790 "duplicate configuration for PCI address %U",
791 format_vlib_pci_addr, addr);
793 else if (addr_type == VNET_DEV_ADDR_VMBUS)
795 p = mhash_get (&conf->device_config_index_by_vmbus_addr,
796 (vlib_vmbus_addr_t *) (addr));
800 pool_get (conf->dev_confs, devconf);
801 mhash_set (&conf->device_config_index_by_vmbus_addr, addr,
802 devconf - conf->dev_confs, 0);
805 return clib_error_return (
806 0, "duplicate configuration for VMBUS address %U",
807 format_vlib_vmbus_addr, addr);
810 if (addr_type == VNET_DEV_ADDR_PCI)
812 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
813 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
814 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
816 else if (addr_type == VNET_DEV_ADDR_VMBUS)
818 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
819 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
820 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
826 unformat_skip_white_space (input);
827 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
829 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
831 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
833 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
835 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
837 else if (unformat (input, "name %v", &devconf->name))
839 else if (unformat (input, "workers %U", unformat_bitmap_list,
844 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
846 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
850 else if (unformat (input, "tso on"))
852 devconf->tso = DPDK_DEVICE_TSO_ON;
854 else if (unformat (input, "tso off"))
856 devconf->tso = DPDK_DEVICE_TSO_OFF;
858 else if (unformat (input, "devargs %s", &devconf->devargs))
860 else if (unformat (input, "rss-queues %U",
861 unformat_bitmap_list, &devconf->rss_queues))
863 else if (unformat (input, "max-lro-pkt-size %u",
864 &devconf->max_lro_pkt_size))
868 error = clib_error_return (0, "unknown input `%U'",
869 format_unformat_error, input);
877 if (devconf->workers && devconf->num_rx_queues == 0)
878 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
879 else if (devconf->workers &&
880 clib_bitmap_count_set_bits (devconf->workers) !=
881 devconf->num_rx_queues)
882 error = clib_error_return (0,
883 "%U: number of worker threads must be "
884 "equal to number of rx queues",
885 format_vlib_pci_addr, addr);
890 static clib_error_t *
891 dpdk_log_read_ready (clib_file_t * uf)
893 unformat_input_t input;
900 uword len = vec_len (s);
901 vec_resize (s, len + n_try);
903 n = read (uf->file_descriptor, s + len, n_try);
904 if (n < 0 && errno != EAGAIN)
905 return clib_error_return_unix (0, "read");
906 _vec_len (s) = len + (n < 0 ? 0 : n);
909 unformat_init_vector (&input, s);
911 while (unformat_user (&input, unformat_line, &line))
916 /* unfortunatelly DPDK polutes log with this error messages
917 * even when we pass --in-memory which means no secondary process */
918 if (strstr ((char *) line, "WARNING! Base virtual address hint"))
920 else if (strstr ((char *) line, "This may cause issues with mapping "
921 "memory into secondary processes"))
925 dpdk_log_notice ("%v", line);
929 unformat_free (&input);
933 static clib_error_t *
934 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
936 dpdk_main_t *dm = &dpdk_main;
937 clib_error_t *error = 0;
938 dpdk_config_main_t *conf = &dpdk_config_main;
939 vlib_thread_main_t *tm = vlib_get_thread_main ();
940 dpdk_device_config_t *devconf;
941 vlib_pci_addr_t pci_addr = { 0 };
942 vlib_vmbus_addr_t vmbus_addr = { 0 };
943 unformat_input_t sub_input;
944 uword default_hugepage_sz, x;
947 int num_whitelisted = 0;
948 int eal_no_hugetlb = 0;
953 u8 *huge_dir_path = 0;
954 u32 vendor, device, domain, bus, func;
957 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
959 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
960 mhash_init (&conf->device_config_index_by_vmbus_addr, sizeof (uword),
961 sizeof (vlib_vmbus_addr_t));
963 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
966 if (unformat (input, "no-hugetlb"))
968 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
971 else if (unformat (input, "telemetry"))
972 conf->enable_telemetry = 1;
974 else if (unformat (input, "enable-tcp-udp-checksum"))
976 dm->default_port_conf.enable_tcp_udp_checksum = 1;
977 if (unformat (input, "enable-outer-checksum-offload"))
978 dm->default_port_conf.enable_outer_checksum_offload = 1;
980 else if (unformat (input, "no-tx-checksum-offload"))
981 dm->default_port_conf.disable_tx_checksum_offload = 1;
983 else if (unformat (input, "decimal-interface-names"))
984 conf->interface_name_format_decimal = 1;
986 else if (unformat (input, "no-multi-seg"))
987 dm->default_port_conf.disable_multi_seg = 1;
988 else if (unformat (input, "enable-lro"))
989 dm->default_port_conf.enable_lro = 1;
990 else if (unformat (input, "max-simd-bitwidth %U",
991 unformat_max_simd_bitwidth, &conf->max_simd_bitwidth))
993 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
997 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1004 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1005 unformat_vlib_cli_sub_input, &sub_input))
1007 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1015 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1018 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1025 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1026 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1028 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1036 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1040 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1047 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1049 else if (unformat (input, "socket-mem %s", &socket_mem))
1051 else if (unformat (input, "no-pci"))
1054 tmp = format (0, "--no-pci%c", 0);
1055 vec_add1 (conf->eal_init_args, tmp);
1057 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1060 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr);
1064 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1066 tmp = format (0, "-b%c", 0);
1067 vec_add1 (conf->eal_init_args, tmp);
1069 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1070 vec_add1 (conf->eal_init_args, tmp);
1072 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1074 u32 blacklist_entry;
1075 if (vendor > 0xFFFF)
1076 return clib_error_return (0, "blacklist PCI vendor out of range");
1077 if (device > 0xFFFF)
1078 return clib_error_return (0, "blacklist PCI device out of range");
1079 blacklist_entry = (vendor << 16) | (device & 0xffff);
1080 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1083 else if (unformat (input, "no-vmbus"))
1086 tmp = format (0, "--no-vmbus%c", 0);
1087 vec_add1 (conf->eal_init_args, tmp);
1091 else if (unformat(input, #a)) \
1093 tmp = format (0, "--%s%c", #a, 0); \
1094 vec_add1 (conf->eal_init_args, tmp); \
1096 foreach_eal_double_hyphen_predicate_arg
1099 else if (unformat(input, #a " %s", &s)) \
1101 if (!strncmp(#a, "file-prefix", 11)) \
1103 tmp = format (0, "--%s%c", #a, 0); \
1104 vec_add1 (conf->eal_init_args, tmp); \
1106 if (!strncmp(#a, "vdev", 4)) \
1107 if (strstr((char*)s, "af_packet")) \
1108 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1109 vec_add1 (conf->eal_init_args, s); \
1111 foreach_eal_double_hyphen_arg
1114 else if (unformat(input, #a " %s", &s)) \
1116 tmp = format (0, "-%s%c", #b, 0); \
1117 vec_add1 (conf->eal_init_args, tmp); \
1119 vec_add1 (conf->eal_init_args, s); \
1121 foreach_eal_single_hyphen_arg
1123 else if (unformat (input, "default"))
1126 else if (unformat_skip_white_space (input))
1130 error = clib_error_return (0, "unknown input `%U'",
1131 format_unformat_error, input);
1136 if (!conf->uio_driver_name)
1137 conf->uio_driver_name = format (0, "auto%c", 0);
1139 if (eal_no_hugetlb == 0)
1141 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1143 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1146 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1150 /* preallocate at least 16MB of hugepages per socket,
1151 if more is needed it is up to consumer to preallocate more */
1152 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1153 n_pages /= default_hugepage_sz;
1155 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1156 clib_error_report (e);
1161 /* on/off dpdk's telemetry thread */
1162 if (conf->enable_telemetry == 0)
1164 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1169 tmp = format (0, "--file-prefix%c", 0);
1170 vec_add1 (conf->eal_init_args, tmp);
1171 tmp = format (0, "vpp%c", 0);
1172 vec_add1 (conf->eal_init_args, tmp);
1178 if (no_pci == 0 && geteuid () == 0)
1179 dpdk_bind_devices_to_uio (conf);
1181 if (no_vmbus == 0 && geteuid () == 0)
1182 dpdk_bind_vmbus_devices_to_uio (conf);
1185 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1186 devconf->x = conf->default_devconf.x ;
1188 pool_foreach (devconf, conf->dev_confs) {
1190 /* default per-device config items */
1191 foreach_dpdk_device_config_item
1193 /* copy tso config from default device */
1196 /* copy tso config from default device */
1199 /* copy rss_queues config from default device */
1202 /* add DPDK EAL whitelist/blacklist entry */
1203 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1204 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1206 tmp = format (0, "-a%c", 0);
1207 vec_add1 (conf->eal_init_args, tmp);
1208 if (devconf->devargs)
1210 tmp = format (0, "%U,%s%c", format_vlib_pci_addr,
1211 &devconf->pci_addr, devconf->devargs, 0);
1215 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1217 vec_add1 (conf->eal_init_args, tmp);
1219 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1220 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1222 tmp = format (0, "-b%c", 0);
1223 vec_add1 (conf->eal_init_args, tmp);
1224 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1225 vec_add1 (conf->eal_init_args, tmp);
1232 clib_warning ("socket-mem argument is deprecated");
1234 /* NULL terminate the "argv" vector, in case of stupidity */
1235 vec_add1 (conf->eal_init_args, 0);
1236 _vec_len (conf->eal_init_args) -= 1;
1238 /* Set up DPDK eal and packet mbuf pool early. */
1240 int log_fds[2] = { 0 };
1241 if (pipe (log_fds) == 0)
1243 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1245 FILE *f = fdopen (log_fds[1], "a");
1246 if (f && rte_openlog_stream (f) == 0)
1248 clib_file_t t = { 0 };
1249 t.read_function = dpdk_log_read_ready;
1250 t.file_descriptor = log_fds[0];
1251 t.description = format (0, "DPDK logging pipe");
1252 clib_file_add (&file_main, &t);
1262 vm = vlib_get_main ();
1264 /* make copy of args as rte_eal_init tends to mess up with arg array */
1265 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1266 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1267 conf->eal_init_args[i]);
1269 vec_terminate_c_string (conf->eal_init_args_str);
1271 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1272 ret = rte_eal_init (vec_len (conf->eal_init_args),
1273 (char **) conf->eal_init_args);
1275 /* enable the AVX-512 vPMDs in DPDK */
1276 if (clib_cpu_supports_avx512_bitalg () &&
1277 conf->max_simd_bitwidth == DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1278 rte_vect_set_max_simd_bitwidth (RTE_VECT_SIMD_512);
1279 else if (conf->max_simd_bitwidth != DPDK_MAX_SIMD_BITWIDTH_DEFAULT)
1280 rte_vect_set_max_simd_bitwidth (conf->max_simd_bitwidth ==
1281 DPDK_MAX_SIMD_BITWIDTH_256 ?
1285 /* lazy umount hugepages */
1286 umount2 ((char *) huge_dir_path, MNT_DETACH);
1287 rmdir ((char *) huge_dir_path);
1288 vec_free (huge_dir_path);
1291 return clib_error_return (0, "rte_eal_init returned %d", ret);
1293 /* main thread 1st */
1294 if ((error = dpdk_buffer_pools_create (vm)))
1301 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1304 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1306 vnet_main_t *vnm = vnet_get_main ();
1307 struct rte_eth_link prev_link = xd->link;
1309 u8 hw_flags_chg = 0;
1311 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1312 clib_memset (&xd->link, 0, sizeof (xd->link));
1313 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1315 if (LINK_STATE_ELOGS)
1317 ELOG_TYPE_DECLARE (e) =
1320 "update-link-state: sw_if_index %d, admin_up %d,"
1321 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1330 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1331 ed->sw_if_index = xd->sw_if_index;
1332 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1333 ed->old_link_state = (u8)
1334 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1335 ed->new_link_state = (u8) xd->link.link_status;
1338 if ((xd->link.link_duplex != prev_link.link_duplex))
1341 switch (xd->link.link_duplex)
1343 case ETH_LINK_HALF_DUPLEX:
1344 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1346 case ETH_LINK_FULL_DUPLEX:
1347 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1353 if (xd->link.link_speed != prev_link.link_speed)
1354 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1355 xd->link.link_speed * 1000);
1357 if (xd->link.link_status != prev_link.link_status)
1361 if (xd->link.link_status)
1362 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1367 if (LINK_STATE_ELOGS)
1369 ELOG_TYPE_DECLARE (e) =
1372 "update-link-state: sw_if_index %d, new flags %d",.format_args
1380 ed = ELOG_DATA (&vlib_global_main.elog_main, e);
1381 ed->sw_if_index = xd->sw_if_index;
1382 ed->flags = hw_flags;
1384 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1389 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1391 clib_error_t *error;
1392 dpdk_main_t *dm = &dpdk_main;
1394 vlib_thread_main_t *tm = vlib_get_thread_main ();
1396 error = dpdk_lib_init (dm);
1399 clib_error_report (error);
1401 if (dpdk_cryptodev_init)
1403 error = dpdk_cryptodev_init (vm);
1406 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error,
1408 clib_error_free (error);
1412 tm->worker_thread_release = 1;
1414 f64 now = vlib_time_now (vm);
1415 vec_foreach (xd, dm->devices)
1417 dpdk_update_link_state (xd, now);
1423 * check each time through the loop in case intervals are changed
1425 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1426 dm->link_state_poll_interval : dm->stat_poll_interval;
1428 vlib_process_wait_for_event_or_clock (vm, min_wait);
1430 if (dm->admin_up_down_in_progress)
1431 /* skip the poll if an admin up down is in progress (on any interface) */
1434 vec_foreach (xd, dm->devices)
1436 f64 now = vlib_time_now (vm);
1437 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1438 dpdk_update_counters (xd, now);
1439 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1440 dpdk_update_link_state (xd, now);
1449 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1450 .function = dpdk_process,
1451 .type = VLIB_NODE_TYPE_PROCESS,
1452 .name = "dpdk-process",
1453 .process_log2_n_stack_bytes = 17,
1457 static clib_error_t *
1458 dpdk_init (vlib_main_t * vm)
1460 dpdk_main_t *dm = &dpdk_main;
1461 clib_error_t *error = 0;
1463 /* verify that structs are cacheline aligned */
1464 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1465 "Cache line marker must be 1st element in dpdk_device_t");
1466 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1467 CLIB_CACHE_LINE_BYTES,
1468 "Data in cache line 0 is bigger than cache line size");
1469 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1470 "Cache line marker must be 1st element in frame_queue_trace_t");
1472 dpdk_cli_reference ();
1474 dm->conf = &dpdk_config_main;
1476 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1478 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1479 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1481 dm->log_default = vlib_log_register_class ("dpdk", 0);
1482 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1487 VLIB_INIT_FUNCTION (dpdk_init);
1489 static clib_error_t *
1490 dpdk_worker_thread_init (vlib_main_t *vm)
1492 if (rte_thread_register () < 0)
1493 clib_panic ("dpdk: cannot register thread %u - %s", vm->thread_index,
1494 rte_strerror (rte_errno));
1498 VLIB_WORKER_INIT_FUNCTION (dpdk_worker_thread_init);