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 <dpdk/buffer.h>
26 #include <dpdk/device/dpdk.h>
27 #include <dpdk/cryptodev/cryptodev.h>
28 #include <vlib/pci/pci.h>
29 #include <vlib/vmbus/vmbus.h>
37 #include <sys/mount.h>
42 #include <dpdk/device/dpdk_priv.h>
44 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
46 dpdk_main_t dpdk_main;
47 dpdk_config_main_t dpdk_config_main;
49 #define LINK_STATE_ELOGS 0
51 /* Port configuration, mildly modified Intel app values */
53 static dpdk_port_type_t
54 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
57 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
58 return VNET_DPDK_PORT_TYPE_ETH_100G;
59 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
60 return VNET_DPDK_PORT_TYPE_ETH_56G;
61 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
62 return VNET_DPDK_PORT_TYPE_ETH_50G;
63 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
64 return VNET_DPDK_PORT_TYPE_ETH_40G;
65 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
66 return VNET_DPDK_PORT_TYPE_ETH_25G;
67 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
68 return VNET_DPDK_PORT_TYPE_ETH_20G;
69 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
70 return VNET_DPDK_PORT_TYPE_ETH_10G;
71 else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
72 return VNET_DPDK_PORT_TYPE_ETH_5G;
73 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
74 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
75 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
76 return VNET_DPDK_PORT_TYPE_ETH_1G;
78 return VNET_DPDK_PORT_TYPE_UNKNOWN;
81 static dpdk_port_type_t
82 port_type_from_link_speed (u32 link_speed)
86 case ETH_SPEED_NUM_1G:
87 return VNET_DPDK_PORT_TYPE_ETH_1G;
88 case ETH_SPEED_NUM_2_5G:
89 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
90 case ETH_SPEED_NUM_5G:
91 return VNET_DPDK_PORT_TYPE_ETH_5G;
92 case ETH_SPEED_NUM_10G:
93 return VNET_DPDK_PORT_TYPE_ETH_10G;
94 case ETH_SPEED_NUM_20G:
95 return VNET_DPDK_PORT_TYPE_ETH_20G;
96 case ETH_SPEED_NUM_25G:
97 return VNET_DPDK_PORT_TYPE_ETH_25G;
98 case ETH_SPEED_NUM_40G:
99 return VNET_DPDK_PORT_TYPE_ETH_40G;
100 case ETH_SPEED_NUM_50G:
101 return VNET_DPDK_PORT_TYPE_ETH_50G;
102 case ETH_SPEED_NUM_56G:
103 return VNET_DPDK_PORT_TYPE_ETH_56G;
104 case ETH_SPEED_NUM_100G:
105 return VNET_DPDK_PORT_TYPE_ETH_100G;
107 return VNET_DPDK_PORT_TYPE_UNKNOWN;
112 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
114 dpdk_main_t *dm = &dpdk_main;
115 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
116 u32 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
120 case ETHERNET_INTERFACE_FLAG_DEFAULT_L3:
121 /* set to L3/non-promisc mode */
122 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
124 case ETHERNET_INTERFACE_FLAG_ACCEPT_ALL:
125 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
127 case ETHERNET_INTERFACE_FLAG_MTU:
128 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
129 dpdk_device_setup (xd);
135 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
137 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
138 rte_eth_promiscuous_enable (xd->port_id);
140 rte_eth_promiscuous_disable (xd->port_id);
147 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
149 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
152 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
153 return value 1: exist.
154 return value 0: not exist.
162 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
163 DIR *dir_cache = opendir (sys_cache_dir);
165 if (dir_cache == NULL)
168 while ((dp = readdir (dir_cache)) != NULL)
170 if (dp->d_type == DT_DIR)
173 int level_cache = -1;
175 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
176 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
177 clib_error_free (err);
179 if (level_cache == 3)
181 closedir (dir_cache);
187 if (dir_cache != NULL)
188 closedir (dir_cache);
194 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
196 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
197 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
198 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
199 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
202 static clib_error_t *
203 dpdk_lib_init (dpdk_main_t * dm)
206 u32 mtu, max_rx_frame;
209 vlib_main_t *vm = vlib_get_main ();
210 vlib_thread_main_t *tm = vlib_get_thread_main ();
211 vnet_device_main_t *vdm = &vnet_device_main;
212 vnet_sw_interface_t *sw;
213 vnet_hw_interface_t *hi;
215 vlib_pci_addr_t last_pci_addr;
216 u32 last_pci_addr_port = 0;
217 u8 af_packet_instance_num = 0;
218 last_pci_addr.as_u32 = ~0;
220 nports = rte_eth_dev_count_avail ();
224 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
228 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
230 if (dm->conf->enable_tcp_udp_checksum)
231 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
232 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
234 /* vlib_buffer_t template */
235 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
236 CLIB_CACHE_LINE_BYTES);
237 for (i = 0; i < tm->n_vlib_mains; i++)
239 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
240 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
241 ptd->buffer_template.flags = dm->buffer_flags_template;
242 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
246 RTE_ETH_FOREACH_DEV(i)
250 struct rte_eth_dev_info dev_info;
251 struct rte_pci_device *pci_dev;
252 struct rte_vmbus_device *vmbus_dev;
253 dpdk_portid_t next_port_id;
254 dpdk_device_config_t *devconf = 0;
255 vlib_pci_addr_t pci_addr;
256 vlib_vmbus_addr_t vmbus_addr;
259 if (!rte_eth_dev_is_valid_port(i))
262 rte_eth_dev_info_get (i, &dev_info);
264 if (dev_info.device == 0)
266 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
267 dev_info.driver_name);
271 pci_dev = dpdk_get_pci_device (&dev_info);
275 pci_addr.domain = pci_dev->addr.domain;
276 pci_addr.bus = pci_dev->addr.bus;
277 pci_addr.slot = pci_dev->addr.devid;
278 pci_addr.function = pci_dev->addr.function;
279 p = hash_get (dm->conf->device_config_index_by_pci_addr,
283 vmbus_dev = dpdk_get_vmbus_device (&dev_info);
287 unformat_input_t input_vmbus;
289 unformat_init_vector (&input_vmbus, (u8 *) dev_info.device->name);
290 if (unformat (&input_vmbus, "%U", unformat_vlib_vmbus_addr,
293 p = hash_get (dm->conf->device_config_index_by_vmbus_addr,
294 vmbus_addr.as_u32[0]);
300 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
301 /* If device is blacklisted, we should skip it */
302 if (devconf->is_blacklisted)
308 devconf = &dm->conf->default_devconf;
310 /* Create vnet interface */
311 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
312 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
313 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
314 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
317 xd->name = devconf->name;
320 /* Handle representor devices that share the same PCI ID */
321 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
323 if (dev_info.switch_info.port_id != (uint16_t)-1)
324 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
326 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
328 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
330 struct rte_eth_dev_info di = { 0 };
331 struct rte_pci_device *next_pci_dev;
332 rte_eth_dev_info_get (next_port_id, &di);
333 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
335 pci_addr.as_u32 != last_pci_addr.as_u32 &&
336 memcmp (&pci_dev->addr, &next_pci_dev->addr,
337 sizeof (struct rte_pci_addr)) == 0)
339 xd->interface_name_suffix = format (0, "0");
340 last_pci_addr.as_u32 = pci_addr.as_u32;
341 last_pci_addr_port = i;
343 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
345 xd->interface_name_suffix =
346 format (0, "%u", i - last_pci_addr_port);
350 last_pci_addr.as_u32 = ~0;
354 last_pci_addr.as_u32 = ~0;
356 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
357 sizeof (struct rte_eth_txconf));
359 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
361 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
362 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
365 if (dm->conf->enable_tcp_udp_checksum)
367 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
368 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
369 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
370 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
373 if (dm->conf->no_multi_seg)
375 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
376 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
377 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
381 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
382 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
383 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
384 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
387 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
389 if (devconf->num_tx_queues > 0
390 && devconf->num_tx_queues < xd->tx_q_used)
391 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
393 if (devconf->num_rx_queues > 1
394 && dev_info.max_rx_queues >= devconf->num_rx_queues)
396 xd->rx_q_used = devconf->num_rx_queues;
397 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
398 if (devconf->rss_fn == 0)
399 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
400 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
403 u64 unsupported_bits;
404 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
405 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
406 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
407 if (unsupported_bits)
408 dpdk_log_warn ("Unsupported RSS hash functions: %U",
409 format_dpdk_rss_hf_name, unsupported_bits);
411 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
412 dev_info.flow_type_rss_offloads;
417 xd->flags |= DPDK_DEVICE_FLAG_PMD;
419 /* workaround for drivers not setting driver_name */
420 if ((!dev_info.driver_name) && (pci_dev))
421 dev_info.driver_name = pci_dev->driver->driver.name;
423 ASSERT (dev_info.driver_name);
429 #define _(s,f) else if (dev_info.driver_name && \
430 !strcmp(dev_info.driver_name, s)) \
431 xd->pmd = VNET_DPDK_PMD_##f;
437 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
439 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
440 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
441 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
445 /* Drivers with valid speed_capa set */
446 case VNET_DPDK_PMD_E1000EM:
447 case VNET_DPDK_PMD_IGB:
448 case VNET_DPDK_PMD_IXGBE:
449 case VNET_DPDK_PMD_I40E:
450 case VNET_DPDK_PMD_ICE:
451 xd->port_type = port_type_from_speed_capa (&dev_info);
452 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
453 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
454 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
455 VNET_FLOW_ACTION_BUFFER_ADVANCE |
456 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
457 VNET_FLOW_ACTION_RSS;
459 if (dm->conf->no_tx_checksum_offload == 0)
461 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
462 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
464 DPDK_DEVICE_FLAG_TX_OFFLOAD |
465 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
470 case VNET_DPDK_PMD_CXGBE:
471 case VNET_DPDK_PMD_MLX4:
472 case VNET_DPDK_PMD_MLX5:
473 case VNET_DPDK_PMD_QEDE:
474 case VNET_DPDK_PMD_BNXT:
475 xd->port_type = port_type_from_speed_capa (&dev_info);
479 case VNET_DPDK_PMD_IGBVF:
480 case VNET_DPDK_PMD_IXGBEVF:
481 case VNET_DPDK_PMD_I40EVF:
482 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
483 if (dm->conf->no_tx_checksum_offload == 0)
485 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
486 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
488 DPDK_DEVICE_FLAG_TX_OFFLOAD |
489 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
494 case VNET_DPDK_PMD_IAVF:
495 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
496 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
497 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
498 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
499 VNET_FLOW_ACTION_BUFFER_ADVANCE |
500 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
502 if (dm->conf->no_tx_checksum_offload == 0)
504 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
505 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
507 DPDK_DEVICE_FLAG_TX_OFFLOAD |
508 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
512 case VNET_DPDK_PMD_THUNDERX:
513 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
515 if (dm->conf->no_tx_checksum_offload == 0)
517 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
518 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
519 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
523 case VNET_DPDK_PMD_ENA:
524 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
525 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
528 case VNET_DPDK_PMD_DPAA2:
529 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
533 case VNET_DPDK_PMD_ENIC:
535 struct rte_eth_link l;
536 rte_eth_link_get_nowait (i, &l);
537 xd->port_type = port_type_from_link_speed (l.link_speed);
538 if (dm->conf->enable_tcp_udp_checksum)
539 dpdk_enable_l4_csum_offload (xd);
543 /* Intel Red Rock Canyon */
544 case VNET_DPDK_PMD_FM10K:
545 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
549 case VNET_DPDK_PMD_VIRTIO:
550 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
551 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
552 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
553 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
557 case VNET_DPDK_PMD_VMXNET3:
558 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
559 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
562 case VNET_DPDK_PMD_AF_PACKET:
563 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
564 xd->af_packet_instance_num = af_packet_instance_num++;
567 case VNET_DPDK_PMD_VIRTIO_USER:
568 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
571 case VNET_DPDK_PMD_VHOST_ETHER:
572 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
575 case VNET_DPDK_PMD_LIOVF_ETHER:
576 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
579 case VNET_DPDK_PMD_FAILSAFE:
580 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
581 xd->port_conf.intr_conf.lsc = 1;
584 case VNET_DPDK_PMD_NETVSC:
586 struct rte_eth_link l;
587 rte_eth_link_get_nowait (i, &l);
588 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
593 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
596 if (devconf->num_rx_desc)
597 xd->nb_rx_desc = devconf->num_rx_desc;
600 /* If num_rx_desc is not specified by VPP user, the current CPU is working
601 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
602 from original 1024 to help reduce TLB misses.
604 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
605 && check_l3cache() == 0)
606 xd->nb_rx_desc = 512;
609 if (devconf->num_tx_desc)
610 xd->nb_tx_desc = devconf->num_tx_desc;
613 /* If num_tx_desc is not specified by VPP user, the current CPU is working
614 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
615 from original 1024 to help reduce TLB misses.
617 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
618 && check_l3cache() == 0)
619 xd->nb_tx_desc = 512;
623 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
625 f64 now = vlib_time_now (vm);
627 rnd = (u32) (now * 1e6);
628 rnd = random_u32 (&rnd);
629 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
634 rte_eth_macaddr_get (i, (void *) addr);
637 xd->device_index = xd - dm->devices;
638 xd->per_interface_next_index = ~0;
640 /* assign interface to input thread */
643 error = ethernet_register_interface
644 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
645 /* ethernet address */ addr,
646 &xd->hw_if_index, dpdk_flag_change);
651 * Ensure default mtu is not > the mtu read from the hardware.
652 * Otherwise rte_eth_dev_configure() will fail and the port will
654 * Calculate max_frame_size and mtu supported by NIC
656 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
659 * This device does not support the platforms's max frame
660 * size. Use it's advertised mru instead.
662 max_rx_frame = dev_info.max_rx_pktlen;
663 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
667 /* VPP treats MTU and max_rx_pktlen both equal to
668 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
669 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
671 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
672 sizeof (ethernet_header_t)))
674 mtu = ETHERNET_MAX_PACKET_BYTES;
675 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
678 * Some platforms do not account for Ethernet FCS (4 bytes) in
679 * MTU calculations. To interop with them increase mru but only
680 * if the device's settings can support it.
682 if (dpdk_port_crc_strip_enabled (xd) &&
683 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
684 sizeof (ethernet_header_t) +
692 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
693 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
695 if (dpdk_port_crc_strip_enabled (xd) &&
696 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
703 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
705 /* failsafe device numerables are reported with active device only,
706 * need to query the mtu for current device setup to overwrite
710 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
713 max_rx_frame = mtu + sizeof (ethernet_header_t);
715 if (dpdk_port_crc_strip_enabled (xd))
722 /*Set port rxmode config */
723 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
725 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
726 xd->sw_if_index = sw->sw_if_index;
727 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
728 dpdk_input_node.index);
730 if (devconf->workers)
734 clib_bitmap_foreach (i, devconf->workers) {
735 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
736 vdm->first_worker_thread_index + i);
740 for (q = 0; q < xd->rx_q_used; q++)
742 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
746 /*Get vnet hardware interface */
747 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
749 /*Override default max_packet_bytes and max_supported_bytes set in
750 * ethernet_register_interface() above*/
753 hi->max_packet_bytes = mtu;
754 hi->max_supported_packet_bytes = max_rx_frame;
755 hi->numa_node = xd->cpu_socket;
757 /* Indicate ability to support L3 DMAC filtering and
758 * initialize interface to L3 non-promisc mode */
759 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
760 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
761 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
764 if (dm->conf->no_tx_checksum_offload == 0)
765 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
766 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
768 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
770 /*tcp_udp checksum must be enabled*/
771 if ((dm->conf->enable_tcp_udp_checksum) &&
772 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
774 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
775 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
776 DEV_TX_OFFLOAD_UDP_TSO;
779 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
783 dpdk_device_setup (xd);
785 /* rss queues should be configured after dpdk_device_setup() */
786 if ((hi != NULL) && (devconf->rss_queues != NULL))
788 if (vnet_hw_interface_set_rss_queues
789 (vnet_get_main (), hi, devconf->rss_queues))
791 clib_warning ("%s: Failed to set rss queues", hi->name);
795 if (vec_len (xd->errors))
796 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
797 format_dpdk_device_name, i,
798 format_dpdk_device_errors, xd);
801 * A note on Cisco VIC (PMD_ENIC) and VLAN:
803 * With Cisco VIC vNIC, every ingress packet is tagged. On a
804 * trunk vNIC (C series "standalone" server), packets on no VLAN
805 * are tagged with vlan 0. On an access vNIC (standalone or B
806 * series "blade" server), packets on the default/native VLAN
807 * are tagged with that vNIC's VLAN. VPP expects these packets
808 * to be untagged, and previously enabled VLAN strip on VIC by
809 * default. But it also broke vlan sub-interfaces.
811 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
812 * mode, which removes tags from these packets. VPP now includes
813 * a local patch for the enic driver to use this untag mode, so
814 * enabling vlan stripping is no longer needed. In future, the
815 * driver + dpdk will have an API to set the mode after
816 * rte_eal_init. Then, this note and local patch will be
821 * VLAN stripping: default to VLAN strip disabled, unless specified
822 * otherwise in the startup config.
825 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
826 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
828 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
829 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
830 dpdk_log_info ("VLAN strip enabled for interface\n");
832 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
833 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
837 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
839 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
840 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
841 dpdk_log_warn ("set VLAN offload failed\n");
843 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
847 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
848 - sizeof (ethernet_header_t);
850 dpdk_log_warn ("hi NULL");
852 if (dm->conf->no_multi_seg)
853 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
855 rte_eth_dev_set_mtu (xd->port_id, mtu);
864 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
866 vlib_main_t *vm = vlib_get_main ();
869 int num_whitelisted = vec_len (conf->dev_confs);
870 vlib_pci_device_info_t *d = 0;
871 vlib_pci_addr_t *addr = 0, *addrs;
874 addrs = vlib_pci_get_all_dev_addrs ();
876 vec_foreach (addr, addrs)
878 dpdk_device_config_t * devconf = 0;
879 vec_reset_length (pci_addr);
880 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
883 vlib_pci_free_device_info (d);
886 d = vlib_pci_get_device_info (vm, addr, &error);
889 vlib_log_warn (dpdk_main.log_default, "%U", format_clib_error, error);
890 clib_error_free (error);
894 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
899 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
907 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
910 /* Enforce Device blacklist by vendor and device */
911 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
914 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
915 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
916 if (d->vendor_id == vendor && d->device_id == device)
919 * Expected case: device isn't whitelisted,
924 /* Device is blacklisted */
925 pool_get (conf->dev_confs, devconf);
926 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
927 devconf - conf->dev_confs);
928 devconf->pci_addr.as_u32 = addr->as_u32;
929 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
930 devconf->is_blacklisted = 1;
933 else /* explicitly whitelisted, ignore the device blacklist */
939 if (d->vendor_id == 0x1af4 &&
940 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
941 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
944 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
947 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
948 * the default is to put it in the blacklist.
952 pool_get (conf->dev_confs, devconf);
953 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
954 devconf - conf->dev_confs);
955 devconf->pci_addr.as_u32 = addr->as_u32;
956 devconf->is_blacklisted = 1;
959 /* all Intel network devices */
960 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
962 /* all Intel QAT devices VFs */
963 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
964 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
965 d->device_id == 0x37c9 || d->device_id == 0x6f55))
968 else if (d->vendor_id == 0x1137 &&
969 (d->device_id == 0x0043 || d->device_id == 0x0071))
972 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
974 /* Amazon Elastic Network Adapter */
975 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
977 /* Cavium Network Adapter */
978 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
980 /* Cavium FastlinQ QL41000 Series */
981 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
983 /* Mellanox CX3, CX3VF */
984 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
988 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
989 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
993 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
994 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
998 /* Broadcom NetXtreme S, and E series only */
999 else if (d->vendor_id == 0x14e4 &&
1000 ((d->device_id >= 0x16c0 &&
1001 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
1002 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
1003 d->device_id != 0x16fd && d->device_id != 0x16fe &&
1004 d->device_id != 0x170d && d->device_id != 0x170c &&
1005 d->device_id != 0x170e && d->device_id != 0x1712 &&
1006 d->device_id != 0x1713) ||
1007 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
1008 d->device_id == 0x1614 || d->device_id == 0x1606 ||
1009 d->device_id == 0x1609 || d->device_id == 0x1614)))
1013 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
1014 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
1019 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1025 pool_get (conf->dev_confs, devconf);
1026 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1027 devconf - conf->dev_confs);
1028 devconf->pci_addr.as_u32 = addr->as_u32;
1030 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1031 devconf->is_blacklisted = 1;
1032 clib_error_report (error);
1036 vec_free (pci_addr);
1037 vlib_pci_free_device_info (d);
1041 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1043 clib_error_t *error;
1044 vlib_vmbus_addr_t *addrs, *addr = 0;
1045 int num_whitelisted = vec_len (conf->dev_confs);
1048 addrs = vlib_vmbus_get_all_dev_addrs ();
1051 vec_foreach (addr, addrs)
1053 dpdk_device_config_t *devconf = 0;
1054 if (num_whitelisted)
1056 uword *p = hash_get (conf->device_config_index_by_vmbus_addr,
1060 /* No devices blacklisted, but have whitelisted. blacklist all
1061 * non-whitelisted */
1062 pool_get (conf->dev_confs, devconf);
1063 hash_set (conf->device_config_index_by_vmbus_addr,
1064 addr->as_u32[0], devconf - conf->dev_confs);
1065 devconf->vmbus_addr = *addr;
1066 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1067 devconf->is_blacklisted = 1;
1072 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
1075 /* Enforce Device blacklist by vmbus_addr */
1076 for (i = 0; i < vec_len (conf->blacklist_by_vmbus_addr); i++)
1078 u32 vmbus_as_u32 = conf->blacklist_by_vmbus_addr[i];
1079 if (vmbus_as_u32 == addr->as_u32[0])
1083 /* Device not whitelisted */
1084 pool_get (conf->dev_confs, devconf);
1085 hash_set (conf->device_config_index_by_vmbus_addr,
1086 addr->as_u32[0], devconf - conf->dev_confs);
1087 devconf->vmbus_addr = *addr;
1088 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1089 devconf->is_blacklisted = 1;
1099 error = vlib_vmbus_bind_to_uio (addr);
1104 pool_get (conf->dev_confs, devconf);
1105 hash_set (conf->device_config_index_by_vmbus_addr,
1106 addr->as_u32[0], devconf - conf->dev_confs);
1107 devconf->vmbus_addr = *addr;
1109 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1110 devconf->is_blacklisted = 1;
1111 clib_error_report (error);
1117 static clib_error_t *
1118 dpdk_device_config (dpdk_config_main_t *conf, void *addr,
1119 dpdk_device_addr_type_t addr_type, unformat_input_t *input,
1122 clib_error_t *error = 0;
1124 dpdk_device_config_t *devconf = 0;
1125 unformat_input_t sub_input;
1129 devconf = &conf->default_devconf;
1131 else if (addr_type == VNET_DEV_ADDR_PCI)
1133 p = hash_get (conf->device_config_index_by_pci_addr,
1134 ((vlib_pci_addr_t *) (addr))->as_u32);
1138 pool_get (conf->dev_confs, devconf);
1139 hash_set (conf->device_config_index_by_pci_addr,
1140 ((vlib_pci_addr_t *) (addr))->as_u32,
1141 devconf - conf->dev_confs);
1144 return clib_error_return (0,
1145 "duplicate configuration for PCI address %U",
1146 format_vlib_pci_addr, addr);
1148 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1150 p = hash_get (conf->device_config_index_by_vmbus_addr,
1151 ((vlib_vmbus_addr_t *) (addr))->as_u32[0]);
1155 pool_get (conf->dev_confs, devconf);
1156 hash_set (conf->device_config_index_by_vmbus_addr,
1157 ((vlib_vmbus_addr_t *) (addr))->as_u32[0],
1158 devconf - conf->dev_confs);
1161 return clib_error_return (
1162 0, "duplicate configuration for VMBUS address %U",
1163 format_vlib_vmbus_addr, addr);
1166 if (addr_type == VNET_DEV_ADDR_PCI)
1168 devconf->pci_addr.as_u32 = ((vlib_pci_addr_t *) (addr))->as_u32;
1169 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1170 devconf->dev_addr_type = VNET_DEV_ADDR_PCI;
1172 else if (addr_type == VNET_DEV_ADDR_VMBUS)
1174 devconf->vmbus_addr = *((vlib_vmbus_addr_t *) (addr));
1175 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1176 devconf->dev_addr_type = VNET_DEV_ADDR_VMBUS;
1182 unformat_skip_white_space (input);
1183 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1185 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1187 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1189 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1191 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1193 else if (unformat (input, "name %s", &devconf->name))
1195 else if (unformat (input, "workers %U", unformat_bitmap_list,
1200 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1202 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1206 else if (unformat (input, "vlan-strip-offload off"))
1207 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1208 else if (unformat (input, "vlan-strip-offload on"))
1209 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1210 else if (unformat (input, "tso on"))
1212 devconf->tso = DPDK_DEVICE_TSO_ON;
1214 else if (unformat (input, "tso off"))
1216 devconf->tso = DPDK_DEVICE_TSO_OFF;
1218 else if (unformat (input, "devargs %s", &devconf->devargs))
1220 else if (unformat (input, "rss-queues %U",
1221 unformat_bitmap_list, &devconf->rss_queues))
1225 error = clib_error_return (0, "unknown input `%U'",
1226 format_unformat_error, input);
1234 if (devconf->workers && devconf->num_rx_queues == 0)
1235 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1236 else if (devconf->workers &&
1237 clib_bitmap_count_set_bits (devconf->workers) !=
1238 devconf->num_rx_queues)
1239 error = clib_error_return (0,
1240 "%U: number of worker threads must be "
1241 "equal to number of rx queues",
1242 format_vlib_pci_addr, addr);
1247 static clib_error_t *
1248 dpdk_log_read_ready (clib_file_t * uf)
1250 unformat_input_t input;
1257 uword len = vec_len (s);
1258 vec_resize (s, len + n_try);
1260 n = read (uf->file_descriptor, s + len, n_try);
1261 if (n < 0 && errno != EAGAIN)
1262 return clib_error_return_unix (0, "read");
1263 _vec_len (s) = len + (n < 0 ? 0 : n);
1266 unformat_init_vector (&input, s);
1268 while (unformat_user (&input, unformat_line, &line))
1270 dpdk_log_notice ("%v", line);
1274 unformat_free (&input);
1278 static clib_error_t *
1279 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1281 clib_error_t *error = 0;
1282 dpdk_config_main_t *conf = &dpdk_config_main;
1283 vlib_thread_main_t *tm = vlib_get_thread_main ();
1284 dpdk_device_config_t *devconf;
1285 vlib_pci_addr_t pci_addr = { 0 };
1286 vlib_vmbus_addr_t vmbus_addr = { 0 };
1287 unformat_input_t sub_input;
1288 uword default_hugepage_sz, x;
1291 int num_whitelisted = 0;
1292 int eal_no_hugetlb = 0;
1297 u8 *huge_dir_path = 0;
1298 u32 vendor, device, domain, bus, func;
1301 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1303 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1304 conf->device_config_index_by_vmbus_addr = hash_create (0, sizeof (uword));
1306 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1308 /* Prime the pump */
1309 if (unformat (input, "no-hugetlb"))
1311 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1314 else if (unformat (input, "telemetry"))
1315 conf->enable_telemetry = 1;
1317 else if (unformat (input, "enable-tcp-udp-checksum"))
1318 conf->enable_tcp_udp_checksum = 1;
1320 else if (unformat (input, "no-tx-checksum-offload"))
1321 conf->no_tx_checksum_offload = 1;
1323 else if (unformat (input, "decimal-interface-names"))
1324 conf->interface_name_format_decimal = 1;
1326 else if (unformat (input, "no-multi-seg"))
1327 conf->no_multi_seg = 1;
1329 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1333 dpdk_device_config (conf, 0, VNET_DEV_ADDR_ANY, &sub_input, 1);
1340 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1341 unformat_vlib_cli_sub_input, &sub_input))
1343 error = dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI,
1351 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1354 dpdk_device_config (conf, &pci_addr, VNET_DEV_ADDR_PCI, 0, 0);
1361 else if (unformat (input, "dev %U %U", unformat_vlib_vmbus_addr,
1362 &vmbus_addr, unformat_vlib_cli_sub_input, &sub_input))
1364 error = dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS,
1372 else if (unformat (input, "dev %U", unformat_vlib_vmbus_addr,
1376 dpdk_device_config (conf, &vmbus_addr, VNET_DEV_ADDR_VMBUS, 0, 0);
1383 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1384 conf->nchannels_set_manually = 0;
1385 else if (unformat (input, "num-crypto-mbufs %d",
1386 &conf->num_crypto_mbufs))
1388 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1390 else if (unformat (input, "socket-mem %s", &socket_mem))
1392 else if (unformat (input, "no-pci"))
1395 tmp = format (0, "--no-pci%c", 0);
1396 vec_add1 (conf->eal_init_args, tmp);
1398 else if (unformat (input, "blacklist %U", unformat_vlib_vmbus_addr,
1401 vec_add1 (conf->blacklist_by_vmbus_addr, vmbus_addr.as_u32[0]);
1405 (input, "blacklist %x:%x:%x.%x", &domain, &bus, &device, &func))
1407 tmp = format (0, "-b%c", 0);
1408 vec_add1 (conf->eal_init_args, tmp);
1410 format (0, "%04x:%02x:%02x.%x%c", domain, bus, device, func, 0);
1411 vec_add1 (conf->eal_init_args, tmp);
1413 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1415 u32 blacklist_entry;
1416 if (vendor > 0xFFFF)
1417 return clib_error_return (0, "blacklist PCI vendor out of range");
1418 if (device > 0xFFFF)
1419 return clib_error_return (0, "blacklist PCI device out of range");
1420 blacklist_entry = (vendor << 16) | (device & 0xffff);
1421 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1424 else if (unformat (input, "no-vmbus"))
1427 tmp = format (0, "--no-vmbus%c", 0);
1428 vec_add1 (conf->eal_init_args, tmp);
1432 else if (unformat(input, #a)) \
1434 tmp = format (0, "--%s%c", #a, 0); \
1435 vec_add1 (conf->eal_init_args, tmp); \
1437 foreach_eal_double_hyphen_predicate_arg
1440 else if (unformat(input, #a " %s", &s)) \
1442 if (!strncmp(#a, "file-prefix", 11)) \
1444 tmp = format (0, "--%s%c", #a, 0); \
1445 vec_add1 (conf->eal_init_args, tmp); \
1447 if (!strncmp(#a, "vdev", 4)) \
1448 if (strstr((char*)s, "af_packet")) \
1449 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1450 vec_add1 (conf->eal_init_args, s); \
1452 foreach_eal_double_hyphen_arg
1455 else if (unformat(input, #a " %s", &s)) \
1457 tmp = format (0, "-%s%c", #b, 0); \
1458 vec_add1 (conf->eal_init_args, tmp); \
1460 vec_add1 (conf->eal_init_args, s); \
1462 foreach_eal_single_hyphen_arg
1465 else if (unformat(input, #a " %s", &s)) \
1467 tmp = format (0, "-%s%c", #b, 0); \
1468 vec_add1 (conf->eal_init_args, tmp); \
1470 vec_add1 (conf->eal_init_args, s); \
1471 conf->a##_set_manually = 1; \
1473 foreach_eal_single_hyphen_mandatory_arg
1475 else if (unformat (input, "default"))
1478 else if (unformat_skip_white_space (input))
1482 error = clib_error_return (0, "unknown input `%U'",
1483 format_unformat_error, input);
1488 if (!conf->uio_driver_name)
1489 conf->uio_driver_name = format (0, "auto%c", 0);
1491 if (eal_no_hugetlb == 0)
1493 vec_add1 (conf->eal_init_args, (u8 *) "--in-memory");
1495 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1498 clib_bitmap_foreach (x, tm->cpu_socket_bitmap)
1502 /* preallocate at least 16MB of hugepages per socket,
1503 if more is needed it is up to consumer to preallocate more */
1504 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1505 n_pages /= default_hugepage_sz;
1507 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1508 clib_error_report (e);
1513 /* on/off dpdk's telemetry thread */
1514 if (conf->enable_telemetry == 0)
1516 vec_add1 (conf->eal_init_args, (u8 *) "--no-telemetry");
1521 tmp = format (0, "--file-prefix%c", 0);
1522 vec_add1 (conf->eal_init_args, tmp);
1523 tmp = format (0, "vpp%c", 0);
1524 vec_add1 (conf->eal_init_args, tmp);
1530 /* I'll bet that -c and -n must be the first and second args... */
1531 if (!conf->coremask_set_manually)
1533 vlib_thread_registration_t *tr;
1534 uword *coremask = 0;
1537 /* main thread core */
1538 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1540 for (i = 0; i < vec_len (tm->registrations); i++)
1542 tr = tm->registrations[i];
1543 coremask = clib_bitmap_or (coremask, tr->coremask);
1546 vec_insert (conf->eal_init_args, 2, 1);
1547 conf->eal_init_args[1] = (u8 *) "-c";
1548 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1549 conf->eal_init_args[2] = tmp;
1550 clib_bitmap_free (coremask);
1553 if (!conf->nchannels_set_manually)
1555 vec_insert (conf->eal_init_args, 2, 3);
1556 conf->eal_init_args[3] = (u8 *) "-n";
1557 tmp = format (0, "%d", conf->nchannels);
1558 vec_terminate_c_string (tmp);
1559 conf->eal_init_args[4] = tmp;
1562 if (no_pci == 0 && geteuid () == 0)
1563 dpdk_bind_devices_to_uio (conf);
1565 if (no_vmbus == 0 && geteuid () == 0)
1566 dpdk_bind_vmbus_devices_to_uio (conf);
1569 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1570 devconf->x = conf->default_devconf.x ;
1573 pool_foreach (devconf, conf->dev_confs) {
1575 /* default per-device config items */
1576 foreach_dpdk_device_config_item
1578 /* copy vlan_strip config from default device */
1579 _ (vlan_strip_offload)
1581 /* copy tso config from default device */
1584 /* copy tso config from default device */
1587 /* copy rss_queues config from default device */
1590 /* add DPDK EAL whitelist/blacklist entry */
1591 if (num_whitelisted > 0 && devconf->is_blacklisted == 0 &&
1592 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1594 tmp = format (0, "-a%c", 0);
1595 vec_add1 (conf->eal_init_args, tmp);
1596 if (devconf->devargs)
1598 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1602 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1604 vec_add1 (conf->eal_init_args, tmp);
1606 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0 &&
1607 devconf->dev_addr_type == VNET_DEV_ADDR_PCI)
1609 tmp = format (0, "-b%c", 0);
1610 vec_add1 (conf->eal_init_args, tmp);
1611 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1612 vec_add1 (conf->eal_init_args, tmp);
1619 /* set master-lcore */
1620 tmp = format (0, "--main-lcore%c", 0);
1621 vec_add1 (conf->eal_init_args, tmp);
1622 tmp = format (0, "%u%c", tm->main_lcore, 0);
1623 vec_add1 (conf->eal_init_args, tmp);
1627 clib_warning ("socket-mem argument is deprecated");
1629 /* NULL terminate the "argv" vector, in case of stupidity */
1630 vec_add1 (conf->eal_init_args, 0);
1631 _vec_len (conf->eal_init_args) -= 1;
1633 /* Set up DPDK eal and packet mbuf pool early. */
1635 int log_fds[2] = { 0 };
1636 if (pipe (log_fds) == 0)
1638 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1640 FILE *f = fdopen (log_fds[1], "a");
1641 if (f && rte_openlog_stream (f) == 0)
1643 clib_file_t t = { 0 };
1644 t.read_function = dpdk_log_read_ready;
1645 t.file_descriptor = log_fds[0];
1646 t.description = format (0, "DPDK logging pipe");
1647 clib_file_add (&file_main, &t);
1657 vm = vlib_get_main ();
1659 /* make copy of args as rte_eal_init tends to mess up with arg array */
1660 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1661 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1662 conf->eal_init_args[i]);
1664 vec_terminate_c_string (conf->eal_init_args_str);
1666 dpdk_log_notice ("EAL init args: %s", conf->eal_init_args_str);
1667 ret = rte_eal_init (vec_len (conf->eal_init_args),
1668 (char **) conf->eal_init_args);
1670 /* lazy umount hugepages */
1671 umount2 ((char *) huge_dir_path, MNT_DETACH);
1672 rmdir ((char *) huge_dir_path);
1673 vec_free (huge_dir_path);
1676 return clib_error_return (0, "rte_eal_init returned %d", ret);
1678 /* main thread 1st */
1679 if ((error = dpdk_buffer_pools_create (vm)))
1686 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1689 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1691 vnet_main_t *vnm = vnet_get_main ();
1692 struct rte_eth_link prev_link = xd->link;
1694 u8 hw_flags_chg = 0;
1696 /* only update link state for PMD interfaces */
1697 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1700 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1701 clib_memset (&xd->link, 0, sizeof (xd->link));
1702 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1704 if (LINK_STATE_ELOGS)
1706 vlib_main_t *vm = vlib_get_main ();
1707 ELOG_TYPE_DECLARE (e) =
1710 "update-link-state: sw_if_index %d, admin_up %d,"
1711 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1720 ed = ELOG_DATA (&vm->elog_main, e);
1721 ed->sw_if_index = xd->sw_if_index;
1722 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1723 ed->old_link_state = (u8)
1724 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1725 ed->new_link_state = (u8) xd->link.link_status;
1728 if ((xd->link.link_duplex != prev_link.link_duplex))
1731 switch (xd->link.link_duplex)
1733 case ETH_LINK_HALF_DUPLEX:
1734 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1736 case ETH_LINK_FULL_DUPLEX:
1737 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1743 if (xd->link.link_speed != prev_link.link_speed)
1744 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1745 xd->link.link_speed * 1000);
1747 if (xd->link.link_status != prev_link.link_status)
1751 if (xd->link.link_status)
1752 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1757 if (LINK_STATE_ELOGS)
1759 vlib_main_t *vm = vlib_get_main ();
1761 ELOG_TYPE_DECLARE (e) =
1764 "update-link-state: sw_if_index %d, new flags %d",.format_args
1772 ed = ELOG_DATA (&vm->elog_main, e);
1773 ed->sw_if_index = xd->sw_if_index;
1774 ed->flags = hw_flags;
1776 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1781 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1783 clib_error_t *error;
1784 dpdk_main_t *dm = &dpdk_main;
1786 vlib_thread_main_t *tm = vlib_get_thread_main ();
1788 error = dpdk_lib_init (dm);
1791 clib_error_report (error);
1793 error = dpdk_cryptodev_init (vm);
1796 vlib_log_warn (dpdk_main.log_cryptodev, "%U", format_clib_error, error);
1797 clib_error_free (error);
1800 tm->worker_thread_release = 1;
1802 f64 now = vlib_time_now (vm);
1803 vec_foreach (xd, dm->devices)
1805 dpdk_update_link_state (xd, now);
1811 * check each time through the loop in case intervals are changed
1813 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1814 dm->link_state_poll_interval : dm->stat_poll_interval;
1816 vlib_process_wait_for_event_or_clock (vm, min_wait);
1818 if (dm->admin_up_down_in_progress)
1819 /* skip the poll if an admin up down is in progress (on any interface) */
1822 vec_foreach (xd, dm->devices)
1824 f64 now = vlib_time_now (vm);
1825 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1826 dpdk_update_counters (xd, now);
1827 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1828 dpdk_update_link_state (xd, now);
1837 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1838 .function = dpdk_process,
1839 .type = VLIB_NODE_TYPE_PROCESS,
1840 .name = "dpdk-process",
1841 .process_log2_n_stack_bytes = 17,
1845 static clib_error_t *
1846 dpdk_init (vlib_main_t * vm)
1848 dpdk_main_t *dm = &dpdk_main;
1849 clib_error_t *error = 0;
1851 /* verify that structs are cacheline aligned */
1852 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1853 "Cache line marker must be 1st element in dpdk_device_t");
1854 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1855 CLIB_CACHE_LINE_BYTES,
1856 "Data in cache line 0 is bigger than cache line size");
1857 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1858 "Cache line marker must be 1st element in frame_queue_trace_t");
1859 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1860 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1862 dpdk_cli_reference ();
1865 dm->vnet_main = vnet_get_main ();
1866 dm->conf = &dpdk_config_main;
1868 dm->conf->nchannels = 4;
1869 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1871 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1872 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1873 VLIB_BUFFER_EXT_HDR_VALID |
1874 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1875 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1877 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1878 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1880 dm->log_default = vlib_log_register_class ("dpdk", 0);
1881 dm->log_cryptodev = vlib_log_register_class ("dpdk", "cryptodev");
1882 dm->log_ipsec = vlib_log_register_class ("dpdk", "ipsec");
1887 VLIB_INIT_FUNCTION (dpdk_init);
1890 * fd.io coding-style-patch-verification: ON
1893 * eval: (c-set-style "gnu")