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);
118 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
120 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
122 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
123 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
125 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
127 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
129 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
130 rte_eth_promiscuous_enable (xd->port_id);
132 rte_eth_promiscuous_disable (xd->port_id);
135 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
137 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
138 dpdk_device_setup (xd);
144 dpdk_device_lock_init (dpdk_device_t * xd)
147 vec_validate (xd->lockp, xd->tx_q_used - 1);
148 for (q = 0; q < xd->tx_q_used; q++)
150 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
151 CLIB_CACHE_LINE_BYTES);
152 clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
157 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
159 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
162 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
163 return value 1: exist.
164 return value 0: not exist.
172 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
173 DIR *dir_cache = opendir (sys_cache_dir);
175 if (dir_cache == NULL)
178 while ((dp = readdir (dir_cache)) != NULL)
180 if (dp->d_type == DT_DIR)
183 int level_cache = -1;
185 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
186 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
187 clib_error_free (err);
189 if (level_cache == 3)
191 closedir (dir_cache);
197 if (dir_cache != NULL)
198 closedir (dir_cache);
204 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
206 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
207 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
208 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
209 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
212 static clib_error_t *
213 dpdk_lib_init (dpdk_main_t * dm)
216 u32 mtu, max_rx_frame;
219 vlib_main_t *vm = vlib_get_main ();
220 vlib_thread_main_t *tm = vlib_get_thread_main ();
221 vnet_device_main_t *vdm = &vnet_device_main;
222 vnet_sw_interface_t *sw;
223 vnet_hw_interface_t *hi;
225 vlib_pci_addr_t last_pci_addr;
226 u32 last_pci_addr_port = 0;
227 u8 af_packet_instance_num = 0;
228 last_pci_addr.as_u32 = ~0;
230 nports = rte_eth_dev_count_avail ();
234 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
238 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
240 if (dm->conf->enable_tcp_udp_checksum)
241 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
242 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
244 /* vlib_buffer_t template */
245 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
246 CLIB_CACHE_LINE_BYTES);
247 for (i = 0; i < tm->n_vlib_mains; i++)
249 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
250 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
251 ptd->buffer_template.flags = dm->buffer_flags_template;
252 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
256 RTE_ETH_FOREACH_DEV(i)
260 struct rte_eth_dev_info dev_info;
261 struct rte_pci_device *pci_dev;
262 struct rte_eth_link l;
263 dpdk_portid_t next_port_id;
264 dpdk_device_config_t *devconf = 0;
265 vlib_pci_addr_t pci_addr;
268 if (!rte_eth_dev_is_valid_port(i))
271 rte_eth_link_get_nowait (i, &l);
272 rte_eth_dev_info_get (i, &dev_info);
274 if (dev_info.device == 0)
276 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
277 dev_info.driver_name);
281 pci_dev = dpdk_get_pci_device (&dev_info);
285 pci_addr.domain = pci_dev->addr.domain;
286 pci_addr.bus = pci_dev->addr.bus;
287 pci_addr.slot = pci_dev->addr.devid;
288 pci_addr.function = pci_dev->addr.function;
289 p = hash_get (dm->conf->device_config_index_by_pci_addr,
294 /* Create vnet interface */
295 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
296 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
297 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
298 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
302 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
303 xd->name = devconf->name;
306 devconf = &dm->conf->default_devconf;
308 /* Handle representor devices that share the same PCI ID */
309 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
311 if (dev_info.switch_info.port_id != (uint16_t)-1)
312 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
314 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
316 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
318 struct rte_eth_dev_info di = { 0 };
319 struct rte_pci_device *next_pci_dev;
320 rte_eth_dev_info_get (next_port_id, &di);
321 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
323 pci_addr.as_u32 != last_pci_addr.as_u32 &&
324 memcmp (&pci_dev->addr, &next_pci_dev->addr,
325 sizeof (struct rte_pci_addr)) == 0)
327 xd->interface_name_suffix = format (0, "0");
328 last_pci_addr.as_u32 = pci_addr.as_u32;
329 last_pci_addr_port = i;
331 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
333 xd->interface_name_suffix =
334 format (0, "%u", i - last_pci_addr_port);
338 last_pci_addr.as_u32 = ~0;
342 last_pci_addr.as_u32 = ~0;
344 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
345 sizeof (struct rte_eth_txconf));
347 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
349 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
350 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
353 if (dm->conf->enable_tcp_udp_checksum)
355 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
356 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
357 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
358 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
361 if (dm->conf->no_multi_seg)
363 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
364 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
365 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
369 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
370 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
371 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
372 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
375 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
377 if (devconf->num_tx_queues > 0
378 && devconf->num_tx_queues < xd->tx_q_used)
379 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
381 if (devconf->num_rx_queues > 1
382 && dev_info.max_rx_queues >= devconf->num_rx_queues)
384 xd->rx_q_used = devconf->num_rx_queues;
385 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
386 if (devconf->rss_fn == 0)
387 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
388 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
391 u64 unsupported_bits;
392 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
393 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
394 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
395 if (unsupported_bits)
396 dpdk_log_warn ("Unsupported RSS hash functions: %U",
397 format_dpdk_rss_hf_name, unsupported_bits);
399 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
400 dev_info.flow_type_rss_offloads;
405 xd->flags |= DPDK_DEVICE_FLAG_PMD;
407 /* workaround for drivers not setting driver_name */
408 if ((!dev_info.driver_name) && (pci_dev))
409 dev_info.driver_name = pci_dev->driver->driver.name;
411 ASSERT (dev_info.driver_name);
417 #define _(s,f) else if (dev_info.driver_name && \
418 !strcmp(dev_info.driver_name, s)) \
419 xd->pmd = VNET_DPDK_PMD_##f;
425 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
427 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
428 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
429 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
433 /* Drivers with valid speed_capa set */
434 case VNET_DPDK_PMD_E1000EM:
435 case VNET_DPDK_PMD_IGB:
436 case VNET_DPDK_PMD_IXGBE:
437 case VNET_DPDK_PMD_I40E:
438 case VNET_DPDK_PMD_ICE:
439 xd->port_type = port_type_from_speed_capa (&dev_info);
440 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
441 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
442 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
443 VNET_FLOW_ACTION_BUFFER_ADVANCE |
444 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
445 VNET_FLOW_ACTION_RSS;
447 if (dm->conf->no_tx_checksum_offload == 0)
449 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
450 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
452 DPDK_DEVICE_FLAG_TX_OFFLOAD |
453 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
458 case VNET_DPDK_PMD_CXGBE:
459 case VNET_DPDK_PMD_MLX4:
460 case VNET_DPDK_PMD_MLX5:
461 case VNET_DPDK_PMD_QEDE:
462 case VNET_DPDK_PMD_BNXT:
463 xd->port_type = port_type_from_speed_capa (&dev_info);
467 case VNET_DPDK_PMD_IGBVF:
468 case VNET_DPDK_PMD_IXGBEVF:
469 case VNET_DPDK_PMD_I40EVF:
470 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
471 if (dm->conf->no_tx_checksum_offload == 0)
473 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
474 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
476 DPDK_DEVICE_FLAG_TX_OFFLOAD |
477 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
482 case VNET_DPDK_PMD_IAVF:
483 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
484 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
485 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
486 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
487 VNET_FLOW_ACTION_BUFFER_ADVANCE |
488 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
490 if (dm->conf->no_tx_checksum_offload == 0)
492 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
493 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
495 DPDK_DEVICE_FLAG_TX_OFFLOAD |
496 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
500 case VNET_DPDK_PMD_THUNDERX:
501 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
503 if (dm->conf->no_tx_checksum_offload == 0)
505 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
506 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
507 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
511 case VNET_DPDK_PMD_ENA:
512 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
513 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
516 case VNET_DPDK_PMD_DPAA2:
517 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
521 case VNET_DPDK_PMD_ENIC:
522 xd->port_type = port_type_from_link_speed (l.link_speed);
523 if (dm->conf->enable_tcp_udp_checksum)
524 dpdk_enable_l4_csum_offload (xd);
527 /* Intel Red Rock Canyon */
528 case VNET_DPDK_PMD_FM10K:
529 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
533 case VNET_DPDK_PMD_VIRTIO:
534 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
535 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
536 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
537 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
541 case VNET_DPDK_PMD_VMXNET3:
542 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
543 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
546 case VNET_DPDK_PMD_AF_PACKET:
547 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
548 xd->af_packet_instance_num = af_packet_instance_num++;
551 case VNET_DPDK_PMD_VIRTIO_USER:
552 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
555 case VNET_DPDK_PMD_VHOST_ETHER:
556 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
559 case VNET_DPDK_PMD_LIOVF_ETHER:
560 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
563 case VNET_DPDK_PMD_FAILSAFE:
564 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
565 xd->port_conf.intr_conf.lsc = 1;
568 case VNET_DPDK_PMD_NETVSC:
569 xd->port_type = port_type_from_link_speed (l.link_speed);
573 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
576 if (devconf->num_rx_desc)
577 xd->nb_rx_desc = devconf->num_rx_desc;
580 /* If num_rx_desc is not specified by VPP user, the current CPU is working
581 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
582 from original 1024 to help reduce TLB misses.
584 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
585 && check_l3cache() == 0)
586 xd->nb_rx_desc = 512;
589 if (devconf->num_tx_desc)
590 xd->nb_tx_desc = devconf->num_tx_desc;
593 /* If num_tx_desc is not specified by VPP user, the current CPU is working
594 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
595 from original 1024 to help reduce TLB misses.
597 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
598 && check_l3cache() == 0)
599 xd->nb_tx_desc = 512;
603 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
605 f64 now = vlib_time_now (vm);
607 rnd = (u32) (now * 1e6);
608 rnd = random_u32 (&rnd);
609 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
614 rte_eth_macaddr_get (i, (void *) addr);
616 if (xd->tx_q_used < tm->n_vlib_mains)
617 dpdk_device_lock_init (xd);
620 xd->device_index = xd - dm->devices;
621 xd->per_interface_next_index = ~0;
623 /* assign interface to input thread */
627 error = ethernet_register_interface
628 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
629 /* ethernet address */ addr,
630 &xd->hw_if_index, dpdk_flag_change);
635 * Ensure default mtu is not > the mtu read from the hardware.
636 * Otherwise rte_eth_dev_configure() will fail and the port will
638 * Calculate max_frame_size and mtu supported by NIC
640 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
643 * This device does not support the platforms's max frame
644 * size. Use it's advertised mru instead.
646 max_rx_frame = dev_info.max_rx_pktlen;
647 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
651 /* VPP treats MTU and max_rx_pktlen both equal to
652 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
653 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
655 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
656 sizeof (ethernet_header_t)))
658 mtu = ETHERNET_MAX_PACKET_BYTES;
659 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
662 * Some platforms do not account for Ethernet FCS (4 bytes) in
663 * MTU calculations. To interop with them increase mru but only
664 * if the device's settings can support it.
666 if (dpdk_port_crc_strip_enabled (xd) &&
667 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
668 sizeof (ethernet_header_t) +
676 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
677 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
679 if (dpdk_port_crc_strip_enabled (xd) &&
680 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
687 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
689 /* failsafe device numerables are reported with active device only,
690 * need to query the mtu for current device setup to overwrite
694 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
697 max_rx_frame = mtu + sizeof (ethernet_header_t);
699 if (dpdk_port_crc_strip_enabled (xd))
706 /*Set port rxmode config */
707 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
709 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
710 xd->sw_if_index = sw->sw_if_index;
711 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
712 dpdk_input_node.index);
714 if (devconf->workers)
718 clib_bitmap_foreach (i, devconf->workers, ({
719 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
720 vdm->first_worker_thread_index + i);
724 for (q = 0; q < xd->rx_q_used; q++)
726 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
730 /*Get vnet hardware interface */
731 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
733 /*Override default max_packet_bytes and max_supported_bytes set in
734 * ethernet_register_interface() above*/
737 hi->max_packet_bytes = mtu;
738 hi->max_supported_packet_bytes = max_rx_frame;
739 hi->numa_node = xd->cpu_socket;
742 if (dm->conf->no_tx_checksum_offload == 0)
743 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
744 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
746 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
748 /*tcp_udp checksum must be enabled*/
749 if ((dm->conf->enable_tcp_udp_checksum) &&
750 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
752 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
753 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
754 DEV_TX_OFFLOAD_UDP_TSO;
757 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
761 dpdk_device_setup (xd);
763 if (vec_len (xd->errors))
764 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
765 format_dpdk_device_name, i,
766 format_dpdk_device_errors, xd);
769 * A note on Cisco VIC (PMD_ENIC) and VLAN:
771 * With Cisco VIC vNIC, every ingress packet is tagged. On a
772 * trunk vNIC (C series "standalone" server), packets on no VLAN
773 * are tagged with vlan 0. On an access vNIC (standalone or B
774 * series "blade" server), packets on the default/native VLAN
775 * are tagged with that vNIC's VLAN. VPP expects these packets
776 * to be untagged, and previously enabled VLAN strip on VIC by
777 * default. But it also broke vlan sub-interfaces.
779 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
780 * mode, which removes tags from these packets. VPP now includes
781 * a local patch for the enic driver to use this untag mode, so
782 * enabling vlan stripping is no longer needed. In future, the
783 * driver + dpdk will have an API to set the mode after
784 * rte_eal_init. Then, this note and local patch will be
789 * VLAN stripping: default to VLAN strip disabled, unless specified
790 * otherwise in the startup config.
793 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
794 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
796 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
797 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
798 dpdk_log_info ("VLAN strip enabled for interface\n");
800 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
801 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
805 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
807 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
808 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
809 dpdk_log_warn ("set VLAN offload failed\n");
811 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
815 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
816 - sizeof (ethernet_header_t);
818 dpdk_log_warn ("hi NULL");
820 if (dm->conf->no_multi_seg)
821 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
823 rte_eth_dev_set_mtu (xd->port_id, mtu);
831 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
833 vlib_main_t *vm = vlib_get_main ();
836 int num_whitelisted = vec_len (conf->dev_confs);
837 vlib_pci_device_info_t *d = 0;
838 vlib_pci_addr_t *addr = 0, *addrs;
841 addrs = vlib_pci_get_all_dev_addrs ();
843 vec_foreach (addr, addrs)
845 dpdk_device_config_t * devconf = 0;
846 vec_reset_length (pci_addr);
847 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
850 vlib_pci_free_device_info (d);
853 d = vlib_pci_get_device_info (vm, addr, &error);
856 clib_error_report (error);
860 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
865 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
873 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
876 /* Enforce Device blacklist by vendor and device */
877 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
880 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
881 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
882 if (d->vendor_id == vendor && d->device_id == device)
885 * Expected case: device isn't whitelisted,
890 /* Device is blacklisted */
891 pool_get (conf->dev_confs, devconf);
892 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
893 devconf - conf->dev_confs);
894 devconf->pci_addr.as_u32 = addr->as_u32;
895 devconf->is_blacklisted = 1;
898 else /* explicitly whitelisted, ignore the device blacklist */
904 if (d->vendor_id == 0x1af4 &&
905 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
906 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
909 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
912 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
913 * the default is to put it in the blacklist.
917 pool_get (conf->dev_confs, devconf);
918 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
919 devconf - conf->dev_confs);
920 devconf->pci_addr.as_u32 = addr->as_u32;
921 devconf->is_blacklisted = 1;
924 /* all Intel network devices */
925 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
927 /* all Intel QAT devices VFs */
928 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
929 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
930 d->device_id == 0x37c9 || d->device_id == 0x6f55))
933 else if (d->vendor_id == 0x1137 &&
934 (d->device_id == 0x0043 || d->device_id == 0x0071))
937 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
939 /* Amazon Elastic Network Adapter */
940 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
942 /* Cavium Network Adapter */
943 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
945 /* Cavium FastlinQ QL41000 Series */
946 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
948 /* Mellanox CX3, CX3VF */
949 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
953 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
954 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
958 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
959 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
963 /* Broadcom NetXtreme S, and E series only */
964 else if (d->vendor_id == 0x14e4 &&
965 ((d->device_id >= 0x16c0 &&
966 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
967 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
968 d->device_id != 0x16fd && d->device_id != 0x16fe &&
969 d->device_id != 0x170d && d->device_id != 0x170c &&
970 d->device_id != 0x170e && d->device_id != 0x1712 &&
971 d->device_id != 0x1713) ||
972 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
973 d->device_id == 0x1614 || d->device_id == 0x1606 ||
974 d->device_id == 0x1609 || d->device_id == 0x1614)))
978 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
979 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
984 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
990 pool_get (conf->dev_confs, devconf);
991 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
992 devconf - conf->dev_confs);
993 devconf->pci_addr.as_u32 = addr->as_u32;
995 devconf->is_blacklisted = 1;
996 clib_error_report (error);
1000 vec_free (pci_addr);
1001 vlib_pci_free_device_info (d);
1005 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1007 clib_error_t *error;
1008 vlib_vmbus_addr_t *addrs, *addr = 0;
1010 addrs = vlib_vmbus_get_all_dev_addrs ();
1013 vec_foreach (addr, addrs)
1015 error = vlib_vmbus_bind_to_uio (addr);
1019 clib_error_report (error);
1025 static clib_error_t *
1026 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1027 unformat_input_t * input, u8 is_default)
1029 clib_error_t *error = 0;
1031 dpdk_device_config_t *devconf;
1032 unformat_input_t sub_input;
1036 devconf = &conf->default_devconf;
1040 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1044 pool_get (conf->dev_confs, devconf);
1045 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1046 devconf - conf->dev_confs);
1049 return clib_error_return (0,
1050 "duplicate configuration for PCI address %U",
1051 format_vlib_pci_addr, &pci_addr);
1054 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1055 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1060 unformat_skip_white_space (input);
1061 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1063 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1065 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1067 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1069 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1071 else if (unformat (input, "name %s", &devconf->name))
1073 else if (unformat (input, "workers %U", unformat_bitmap_list,
1078 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1080 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1084 else if (unformat (input, "vlan-strip-offload off"))
1085 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1086 else if (unformat (input, "vlan-strip-offload on"))
1087 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1088 else if (unformat (input, "tso on"))
1090 devconf->tso = DPDK_DEVICE_TSO_ON;
1092 else if (unformat (input, "tso off"))
1094 devconf->tso = DPDK_DEVICE_TSO_OFF;
1096 else if (unformat (input, "devargs %s", &devconf->devargs))
1100 error = clib_error_return (0, "unknown input `%U'",
1101 format_unformat_error, input);
1109 if (devconf->workers && devconf->num_rx_queues == 0)
1110 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1111 else if (devconf->workers &&
1112 clib_bitmap_count_set_bits (devconf->workers) !=
1113 devconf->num_rx_queues)
1115 clib_error_return (0,
1116 "%U: number of worker threads must be "
1117 "equal to number of rx queues", format_vlib_pci_addr,
1123 static clib_error_t *
1124 dpdk_log_read_ready (clib_file_t * uf)
1126 unformat_input_t input;
1133 uword len = vec_len (s);
1134 vec_resize (s, len + n_try);
1136 n = read (uf->file_descriptor, s + len, n_try);
1137 if (n < 0 && errno != EAGAIN)
1138 return clib_error_return_unix (0, "read");
1139 _vec_len (s) = len + (n < 0 ? 0 : n);
1142 unformat_init_vector (&input, s);
1144 while (unformat_user (&input, unformat_line, &line))
1146 dpdk_log_notice ("%v", line);
1150 unformat_free (&input);
1154 static clib_error_t *
1155 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1157 clib_error_t *error = 0;
1158 dpdk_config_main_t *conf = &dpdk_config_main;
1159 vlib_thread_main_t *tm = vlib_get_thread_main ();
1160 dpdk_device_config_t *devconf;
1161 vlib_pci_addr_t pci_addr;
1162 unformat_input_t sub_input;
1163 uword default_hugepage_sz, x;
1166 int num_whitelisted = 0;
1171 u8 *huge_dir_path = 0;
1175 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1177 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1179 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1181 /* Prime the pump */
1182 if (unformat (input, "no-hugetlb"))
1184 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1187 else if (unformat (input, "enable-tcp-udp-checksum"))
1188 conf->enable_tcp_udp_checksum = 1;
1190 else if (unformat (input, "no-tx-checksum-offload"))
1191 conf->no_tx_checksum_offload = 1;
1193 else if (unformat (input, "decimal-interface-names"))
1194 conf->interface_name_format_decimal = 1;
1196 else if (unformat (input, "no-multi-seg"))
1197 conf->no_multi_seg = 1;
1199 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1203 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1211 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1212 unformat_vlib_cli_sub_input, &sub_input))
1214 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1221 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1223 error = dpdk_device_config (conf, pci_addr, 0, 0);
1230 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1231 conf->nchannels_set_manually = 0;
1232 else if (unformat (input, "num-crypto-mbufs %d",
1233 &conf->num_crypto_mbufs))
1235 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1237 else if (unformat (input, "socket-mem %s", &socket_mem))
1239 else if (unformat (input, "no-pci"))
1242 tmp = format (0, "--no-pci%c", 0);
1243 vec_add1 (conf->eal_init_args, tmp);
1245 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1247 u32 blacklist_entry;
1248 if (vendor > 0xFFFF)
1249 return clib_error_return (0, "blacklist PCI vendor out of range");
1250 if (device > 0xFFFF)
1251 return clib_error_return (0, "blacklist PCI device out of range");
1252 blacklist_entry = (vendor << 16) | (device & 0xffff);
1253 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1256 else if (unformat (input, "no-vmbus"))
1259 tmp = format (0, "--no-vmbus%c", 0);
1260 vec_add1 (conf->eal_init_args, tmp);
1264 else if (unformat(input, #a)) \
1266 tmp = format (0, "--%s%c", #a, 0); \
1267 vec_add1 (conf->eal_init_args, tmp); \
1269 foreach_eal_double_hyphen_predicate_arg
1272 else if (unformat(input, #a " %s", &s)) \
1274 if (!strncmp(#a, "file-prefix", 11)) \
1276 tmp = format (0, "--%s%c", #a, 0); \
1277 vec_add1 (conf->eal_init_args, tmp); \
1279 if (!strncmp(#a, "vdev", 4)) \
1280 if (strstr((char*)s, "af_packet")) \
1281 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1282 vec_add1 (conf->eal_init_args, s); \
1284 foreach_eal_double_hyphen_arg
1287 else if (unformat(input, #a " %s", &s)) \
1289 tmp = format (0, "-%s%c", #b, 0); \
1290 vec_add1 (conf->eal_init_args, tmp); \
1292 vec_add1 (conf->eal_init_args, s); \
1294 foreach_eal_single_hyphen_arg
1297 else if (unformat(input, #a " %s", &s)) \
1299 tmp = format (0, "-%s%c", #b, 0); \
1300 vec_add1 (conf->eal_init_args, tmp); \
1302 vec_add1 (conf->eal_init_args, s); \
1303 conf->a##_set_manually = 1; \
1305 foreach_eal_single_hyphen_mandatory_arg
1307 else if (unformat (input, "default"))
1310 else if (unformat_skip_white_space (input))
1314 error = clib_error_return (0, "unknown input `%U'",
1315 format_unformat_error, input);
1320 if (!conf->uio_driver_name)
1321 conf->uio_driver_name = format (0, "auto%c", 0);
1323 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1326 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1330 /* preallocate at least 16MB of hugepages per socket,
1331 if more is needed it is up to consumer to preallocate more */
1332 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1333 n_pages /= default_hugepage_sz;
1335 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1336 clib_error_report (e);
1342 tmp = format (0, "--file-prefix%c", 0);
1343 vec_add1 (conf->eal_init_args, tmp);
1344 tmp = format (0, "vpp%c", 0);
1345 vec_add1 (conf->eal_init_args, tmp);
1351 /* I'll bet that -c and -n must be the first and second args... */
1352 if (!conf->coremask_set_manually)
1354 vlib_thread_registration_t *tr;
1355 uword *coremask = 0;
1358 /* main thread core */
1359 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1361 for (i = 0; i < vec_len (tm->registrations); i++)
1363 tr = tm->registrations[i];
1364 coremask = clib_bitmap_or (coremask, tr->coremask);
1367 vec_insert (conf->eal_init_args, 2, 1);
1368 conf->eal_init_args[1] = (u8 *) "-c";
1369 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1370 conf->eal_init_args[2] = tmp;
1371 clib_bitmap_free (coremask);
1374 if (!conf->nchannels_set_manually)
1376 vec_insert (conf->eal_init_args, 2, 3);
1377 conf->eal_init_args[3] = (u8 *) "-n";
1378 tmp = format (0, "%d", conf->nchannels);
1379 vec_terminate_c_string (tmp);
1380 conf->eal_init_args[4] = tmp;
1383 if (no_pci == 0 && geteuid () == 0)
1384 dpdk_bind_devices_to_uio (conf);
1386 if (no_vmbus == 0 && geteuid () == 0)
1387 dpdk_bind_vmbus_devices_to_uio (conf);
1390 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1391 devconf->x = conf->default_devconf.x ;
1394 pool_foreach (devconf, conf->dev_confs, ({
1396 /* default per-device config items */
1397 foreach_dpdk_device_config_item
1399 /* copy vlan_strip config from default device */
1400 if (devconf->vlan_strip_offload == 0 &&
1401 conf->default_devconf.vlan_strip_offload > 0)
1402 devconf->vlan_strip_offload =
1403 conf->default_devconf.vlan_strip_offload;
1405 /* copy tso config from default device */
1408 /* copy tso config from default device */
1411 /* add DPDK EAL whitelist/blacklist entry */
1412 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1414 tmp = format (0, "-w%c", 0);
1415 vec_add1 (conf->eal_init_args, tmp);
1416 if (devconf->devargs)
1418 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1422 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1424 vec_add1 (conf->eal_init_args, tmp);
1426 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1428 tmp = format (0, "-b%c", 0);
1429 vec_add1 (conf->eal_init_args, tmp);
1430 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1431 vec_add1 (conf->eal_init_args, tmp);
1438 /* set master-lcore */
1439 tmp = format (0, "--master-lcore%c", 0);
1440 vec_add1 (conf->eal_init_args, tmp);
1441 tmp = format (0, "%u%c", tm->main_lcore, 0);
1442 vec_add1 (conf->eal_init_args, tmp);
1446 clib_warning ("socket-mem argument is deprecated");
1448 /* NULL terminate the "argv" vector, in case of stupidity */
1449 vec_add1 (conf->eal_init_args, 0);
1450 _vec_len (conf->eal_init_args) -= 1;
1452 /* Set up DPDK eal and packet mbuf pool early. */
1454 int log_fds[2] = { 0 };
1455 if (pipe (log_fds) == 0)
1457 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1459 FILE *f = fdopen (log_fds[1], "a");
1460 if (f && rte_openlog_stream (f) == 0)
1462 clib_file_t t = { 0 };
1463 t.read_function = dpdk_log_read_ready;
1464 t.file_descriptor = log_fds[0];
1465 t.description = format (0, "DPDK logging pipe");
1466 clib_file_add (&file_main, &t);
1476 vm = vlib_get_main ();
1478 /* make copy of args as rte_eal_init tends to mess up with arg array */
1479 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1480 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1481 conf->eal_init_args[i]);
1483 vec_terminate_c_string (conf->eal_init_args_str);
1485 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1486 ret = rte_eal_init (vec_len (conf->eal_init_args),
1487 (char **) conf->eal_init_args);
1489 /* lazy umount hugepages */
1490 umount2 ((char *) huge_dir_path, MNT_DETACH);
1491 rmdir ((char *) huge_dir_path);
1492 vec_free (huge_dir_path);
1495 return clib_error_return (0, "rte_eal_init returned %d", ret);
1497 /* main thread 1st */
1498 if ((error = dpdk_buffer_pools_create (vm)))
1505 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1508 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1510 vnet_main_t *vnm = vnet_get_main ();
1511 struct rte_eth_link prev_link = xd->link;
1513 u8 hw_flags_chg = 0;
1515 /* only update link state for PMD interfaces */
1516 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1519 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1520 clib_memset (&xd->link, 0, sizeof (xd->link));
1521 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1523 if (LINK_STATE_ELOGS)
1525 vlib_main_t *vm = vlib_get_main ();
1526 ELOG_TYPE_DECLARE (e) =
1529 "update-link-state: sw_if_index %d, admin_up %d,"
1530 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1539 ed = ELOG_DATA (&vm->elog_main, e);
1540 ed->sw_if_index = xd->sw_if_index;
1541 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1542 ed->old_link_state = (u8)
1543 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1544 ed->new_link_state = (u8) xd->link.link_status;
1547 if ((xd->link.link_duplex != prev_link.link_duplex))
1550 switch (xd->link.link_duplex)
1552 case ETH_LINK_HALF_DUPLEX:
1553 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1555 case ETH_LINK_FULL_DUPLEX:
1556 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1562 if (xd->link.link_speed != prev_link.link_speed)
1563 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1564 xd->link.link_speed * 1000);
1566 if (xd->link.link_status != prev_link.link_status)
1570 if (xd->link.link_status)
1571 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1576 if (LINK_STATE_ELOGS)
1578 vlib_main_t *vm = vlib_get_main ();
1580 ELOG_TYPE_DECLARE (e) =
1583 "update-link-state: sw_if_index %d, new flags %d",.format_args
1591 ed = ELOG_DATA (&vm->elog_main, e);
1592 ed->sw_if_index = xd->sw_if_index;
1593 ed->flags = hw_flags;
1595 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1600 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1602 clib_error_t *error;
1603 dpdk_main_t *dm = &dpdk_main;
1605 vlib_thread_main_t *tm = vlib_get_thread_main ();
1607 error = dpdk_lib_init (dm);
1610 clib_error_report (error);
1612 error = dpdk_cryptodev_init (vm);
1614 clib_error_report (error);
1616 tm->worker_thread_release = 1;
1618 f64 now = vlib_time_now (vm);
1619 vec_foreach (xd, dm->devices)
1621 dpdk_update_link_state (xd, now);
1627 * check each time through the loop in case intervals are changed
1629 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1630 dm->link_state_poll_interval : dm->stat_poll_interval;
1632 vlib_process_wait_for_event_or_clock (vm, min_wait);
1634 if (dm->admin_up_down_in_progress)
1635 /* skip the poll if an admin up down is in progress (on any interface) */
1638 vec_foreach (xd, dm->devices)
1640 f64 now = vlib_time_now (vm);
1641 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1642 dpdk_update_counters (xd, now);
1643 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1644 dpdk_update_link_state (xd, now);
1653 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1654 .function = dpdk_process,
1655 .type = VLIB_NODE_TYPE_PROCESS,
1656 .name = "dpdk-process",
1657 .process_log2_n_stack_bytes = 17,
1661 static clib_error_t *
1662 dpdk_init (vlib_main_t * vm)
1664 dpdk_main_t *dm = &dpdk_main;
1665 clib_error_t *error = 0;
1667 /* verify that structs are cacheline aligned */
1668 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1669 "Cache line marker must be 1st element in dpdk_device_t");
1670 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1671 CLIB_CACHE_LINE_BYTES,
1672 "Data in cache line 0 is bigger than cache line size");
1673 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1674 "Cache line marker must be 1st element in frame_queue_trace_t");
1675 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1676 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1678 dpdk_cli_reference ();
1681 dm->vnet_main = vnet_get_main ();
1682 dm->conf = &dpdk_config_main;
1684 dm->conf->nchannels = 4;
1685 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1686 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1688 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1689 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1690 VLIB_BUFFER_EXT_HDR_VALID |
1691 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1692 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1694 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1695 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1697 dm->log_default = vlib_log_register_class ("dpdk", 0);
1702 VLIB_INIT_FUNCTION (dpdk_init);
1705 * fd.io coding-style-patch-verification: ON
1708 * eval: (c-set-style "gnu")