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_device_lock_init (dpdk_device_t * xd)
150 vec_validate (xd->lockp, xd->tx_q_used - 1);
151 for (q = 0; q < xd->tx_q_used; q++)
153 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
154 CLIB_CACHE_LINE_BYTES);
155 clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
160 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
162 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
165 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
166 return value 1: exist.
167 return value 0: not exist.
175 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
176 DIR *dir_cache = opendir (sys_cache_dir);
178 if (dir_cache == NULL)
181 while ((dp = readdir (dir_cache)) != NULL)
183 if (dp->d_type == DT_DIR)
186 int level_cache = -1;
188 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
189 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
190 clib_error_free (err);
192 if (level_cache == 3)
194 closedir (dir_cache);
200 if (dir_cache != NULL)
201 closedir (dir_cache);
207 dpdk_enable_l4_csum_offload (dpdk_device_t * xd)
209 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
210 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
211 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD |
212 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
215 static clib_error_t *
216 dpdk_lib_init (dpdk_main_t * dm)
219 u32 mtu, max_rx_frame;
222 vlib_main_t *vm = vlib_get_main ();
223 vlib_thread_main_t *tm = vlib_get_thread_main ();
224 vnet_device_main_t *vdm = &vnet_device_main;
225 vnet_sw_interface_t *sw;
226 vnet_hw_interface_t *hi;
228 vlib_pci_addr_t last_pci_addr;
229 u32 last_pci_addr_port = 0;
230 u8 af_packet_instance_num = 0;
231 last_pci_addr.as_u32 = ~0;
233 nports = rte_eth_dev_count_avail ();
237 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
241 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
243 if (dm->conf->enable_tcp_udp_checksum)
244 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
245 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
247 /* vlib_buffer_t template */
248 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
249 CLIB_CACHE_LINE_BYTES);
250 for (i = 0; i < tm->n_vlib_mains; i++)
252 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
253 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
254 ptd->buffer_template.flags = dm->buffer_flags_template;
255 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
259 RTE_ETH_FOREACH_DEV(i)
263 struct rte_eth_dev_info dev_info;
264 struct rte_pci_device *pci_dev;
265 dpdk_portid_t next_port_id;
266 dpdk_device_config_t *devconf = 0;
267 vlib_pci_addr_t pci_addr;
270 if (!rte_eth_dev_is_valid_port(i))
273 rte_eth_dev_info_get (i, &dev_info);
275 if (dev_info.device == 0)
277 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
278 dev_info.driver_name);
282 pci_dev = dpdk_get_pci_device (&dev_info);
286 pci_addr.domain = pci_dev->addr.domain;
287 pci_addr.bus = pci_dev->addr.bus;
288 pci_addr.slot = pci_dev->addr.devid;
289 pci_addr.function = pci_dev->addr.function;
290 p = hash_get (dm->conf->device_config_index_by_pci_addr,
295 /* Create vnet interface */
296 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
297 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
298 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
299 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
303 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
304 xd->name = devconf->name;
307 devconf = &dm->conf->default_devconf;
309 /* Handle representor devices that share the same PCI ID */
310 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
312 if (dev_info.switch_info.port_id != (uint16_t)-1)
313 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
315 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
317 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
319 struct rte_eth_dev_info di = { 0 };
320 struct rte_pci_device *next_pci_dev;
321 rte_eth_dev_info_get (next_port_id, &di);
322 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
324 pci_addr.as_u32 != last_pci_addr.as_u32 &&
325 memcmp (&pci_dev->addr, &next_pci_dev->addr,
326 sizeof (struct rte_pci_addr)) == 0)
328 xd->interface_name_suffix = format (0, "0");
329 last_pci_addr.as_u32 = pci_addr.as_u32;
330 last_pci_addr_port = i;
332 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
334 xd->interface_name_suffix =
335 format (0, "%u", i - last_pci_addr_port);
339 last_pci_addr.as_u32 = ~0;
343 last_pci_addr.as_u32 = ~0;
345 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
346 sizeof (struct rte_eth_txconf));
348 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
350 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
351 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
354 if (dm->conf->enable_tcp_udp_checksum)
356 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
357 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
358 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
359 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
362 if (dm->conf->no_multi_seg)
364 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
365 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
366 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
370 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
371 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
372 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
373 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
376 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
378 if (devconf->num_tx_queues > 0
379 && devconf->num_tx_queues < xd->tx_q_used)
380 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
382 if (devconf->num_rx_queues > 1
383 && dev_info.max_rx_queues >= devconf->num_rx_queues)
385 xd->rx_q_used = devconf->num_rx_queues;
386 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
387 if (devconf->rss_fn == 0)
388 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
389 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
392 u64 unsupported_bits;
393 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
394 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
395 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
396 if (unsupported_bits)
397 dpdk_log_warn ("Unsupported RSS hash functions: %U",
398 format_dpdk_rss_hf_name, unsupported_bits);
400 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
401 dev_info.flow_type_rss_offloads;
406 xd->flags |= DPDK_DEVICE_FLAG_PMD;
408 /* workaround for drivers not setting driver_name */
409 if ((!dev_info.driver_name) && (pci_dev))
410 dev_info.driver_name = pci_dev->driver->driver.name;
412 ASSERT (dev_info.driver_name);
418 #define _(s,f) else if (dev_info.driver_name && \
419 !strcmp(dev_info.driver_name, s)) \
420 xd->pmd = VNET_DPDK_PMD_##f;
426 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
428 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
429 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
430 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
434 /* Drivers with valid speed_capa set */
435 case VNET_DPDK_PMD_E1000EM:
436 case VNET_DPDK_PMD_IGB:
437 case VNET_DPDK_PMD_IXGBE:
438 case VNET_DPDK_PMD_I40E:
439 case VNET_DPDK_PMD_ICE:
440 xd->port_type = port_type_from_speed_capa (&dev_info);
441 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
442 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
443 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
444 VNET_FLOW_ACTION_BUFFER_ADVANCE |
445 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
446 VNET_FLOW_ACTION_RSS;
448 if (dm->conf->no_tx_checksum_offload == 0)
450 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
451 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
453 DPDK_DEVICE_FLAG_TX_OFFLOAD |
454 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
459 case VNET_DPDK_PMD_CXGBE:
460 case VNET_DPDK_PMD_MLX4:
461 case VNET_DPDK_PMD_MLX5:
462 case VNET_DPDK_PMD_QEDE:
463 case VNET_DPDK_PMD_BNXT:
464 xd->port_type = port_type_from_speed_capa (&dev_info);
468 case VNET_DPDK_PMD_IGBVF:
469 case VNET_DPDK_PMD_IXGBEVF:
470 case VNET_DPDK_PMD_I40EVF:
471 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
472 if (dm->conf->no_tx_checksum_offload == 0)
474 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
475 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
477 DPDK_DEVICE_FLAG_TX_OFFLOAD |
478 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
483 case VNET_DPDK_PMD_IAVF:
484 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
485 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
486 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
487 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
488 VNET_FLOW_ACTION_BUFFER_ADVANCE |
489 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
491 if (dm->conf->no_tx_checksum_offload == 0)
493 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
494 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
496 DPDK_DEVICE_FLAG_TX_OFFLOAD |
497 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
501 case VNET_DPDK_PMD_THUNDERX:
502 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
504 if (dm->conf->no_tx_checksum_offload == 0)
506 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
507 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
508 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
512 case VNET_DPDK_PMD_ENA:
513 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
514 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
517 case VNET_DPDK_PMD_DPAA2:
518 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
522 case VNET_DPDK_PMD_ENIC:
524 struct rte_eth_link l;
525 rte_eth_link_get_nowait (i, &l);
526 xd->port_type = port_type_from_link_speed (l.link_speed);
527 if (dm->conf->enable_tcp_udp_checksum)
528 dpdk_enable_l4_csum_offload (xd);
532 /* Intel Red Rock Canyon */
533 case VNET_DPDK_PMD_FM10K:
534 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
538 case VNET_DPDK_PMD_VIRTIO:
539 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
540 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
541 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
542 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
546 case VNET_DPDK_PMD_VMXNET3:
547 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
548 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
551 case VNET_DPDK_PMD_AF_PACKET:
552 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
553 xd->af_packet_instance_num = af_packet_instance_num++;
556 case VNET_DPDK_PMD_VIRTIO_USER:
557 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
560 case VNET_DPDK_PMD_VHOST_ETHER:
561 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
564 case VNET_DPDK_PMD_LIOVF_ETHER:
565 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
568 case VNET_DPDK_PMD_FAILSAFE:
569 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
570 xd->port_conf.intr_conf.lsc = 1;
573 case VNET_DPDK_PMD_NETVSC:
575 struct rte_eth_link l;
576 rte_eth_link_get_nowait (i, &l);
577 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
582 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
585 if (devconf->num_rx_desc)
586 xd->nb_rx_desc = devconf->num_rx_desc;
589 /* If num_rx_desc is not specified by VPP user, the current CPU is working
590 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
591 from original 1024 to help reduce TLB misses.
593 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
594 && check_l3cache() == 0)
595 xd->nb_rx_desc = 512;
598 if (devconf->num_tx_desc)
599 xd->nb_tx_desc = devconf->num_tx_desc;
602 /* If num_tx_desc is not specified by VPP user, the current CPU is working
603 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
604 from original 1024 to help reduce TLB misses.
606 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
607 && check_l3cache() == 0)
608 xd->nb_tx_desc = 512;
612 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
614 f64 now = vlib_time_now (vm);
616 rnd = (u32) (now * 1e6);
617 rnd = random_u32 (&rnd);
618 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
623 rte_eth_macaddr_get (i, (void *) addr);
625 if (xd->tx_q_used < tm->n_vlib_mains)
626 dpdk_device_lock_init (xd);
629 xd->device_index = xd - dm->devices;
630 xd->per_interface_next_index = ~0;
632 /* assign interface to input thread */
636 error = ethernet_register_interface
637 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
638 /* ethernet address */ addr,
639 &xd->hw_if_index, dpdk_flag_change);
644 * Ensure default mtu is not > the mtu read from the hardware.
645 * Otherwise rte_eth_dev_configure() will fail and the port will
647 * Calculate max_frame_size and mtu supported by NIC
649 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
652 * This device does not support the platforms's max frame
653 * size. Use it's advertised mru instead.
655 max_rx_frame = dev_info.max_rx_pktlen;
656 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
660 /* VPP treats MTU and max_rx_pktlen both equal to
661 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
662 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
664 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
665 sizeof (ethernet_header_t)))
667 mtu = ETHERNET_MAX_PACKET_BYTES;
668 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
671 * Some platforms do not account for Ethernet FCS (4 bytes) in
672 * MTU calculations. To interop with them increase mru but only
673 * if the device's settings can support it.
675 if (dpdk_port_crc_strip_enabled (xd) &&
676 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
677 sizeof (ethernet_header_t) +
685 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
686 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
688 if (dpdk_port_crc_strip_enabled (xd) &&
689 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
696 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
698 /* failsafe device numerables are reported with active device only,
699 * need to query the mtu for current device setup to overwrite
703 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
706 max_rx_frame = mtu + sizeof (ethernet_header_t);
708 if (dpdk_port_crc_strip_enabled (xd))
715 /*Set port rxmode config */
716 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
718 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
719 xd->sw_if_index = sw->sw_if_index;
720 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
721 dpdk_input_node.index);
723 if (devconf->workers)
727 clib_bitmap_foreach (i, devconf->workers, ({
728 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
729 vdm->first_worker_thread_index + i);
733 for (q = 0; q < xd->rx_q_used; q++)
735 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
739 /*Get vnet hardware interface */
740 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
742 /*Override default max_packet_bytes and max_supported_bytes set in
743 * ethernet_register_interface() above*/
746 hi->max_packet_bytes = mtu;
747 hi->max_supported_packet_bytes = max_rx_frame;
748 hi->numa_node = xd->cpu_socket;
750 /* Indicate ability to support L3 DMAC filtering and
751 * initialize interface to L3 non-promisc mode */
752 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
753 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
754 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
757 if (dm->conf->no_tx_checksum_offload == 0)
758 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
759 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
761 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
763 /*tcp_udp checksum must be enabled*/
764 if ((dm->conf->enable_tcp_udp_checksum) &&
765 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
767 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
768 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
769 DEV_TX_OFFLOAD_UDP_TSO;
772 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
776 dpdk_device_setup (xd);
778 if (vec_len (xd->errors))
779 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
780 format_dpdk_device_name, i,
781 format_dpdk_device_errors, xd);
784 * A note on Cisco VIC (PMD_ENIC) and VLAN:
786 * With Cisco VIC vNIC, every ingress packet is tagged. On a
787 * trunk vNIC (C series "standalone" server), packets on no VLAN
788 * are tagged with vlan 0. On an access vNIC (standalone or B
789 * series "blade" server), packets on the default/native VLAN
790 * are tagged with that vNIC's VLAN. VPP expects these packets
791 * to be untagged, and previously enabled VLAN strip on VIC by
792 * default. But it also broke vlan sub-interfaces.
794 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
795 * mode, which removes tags from these packets. VPP now includes
796 * a local patch for the enic driver to use this untag mode, so
797 * enabling vlan stripping is no longer needed. In future, the
798 * driver + dpdk will have an API to set the mode after
799 * rte_eal_init. Then, this note and local patch will be
804 * VLAN stripping: default to VLAN strip disabled, unless specified
805 * otherwise in the startup config.
808 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
809 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
811 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
812 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
813 dpdk_log_info ("VLAN strip enabled for interface\n");
815 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
816 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
820 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
822 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
823 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
824 dpdk_log_warn ("set VLAN offload failed\n");
826 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
830 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
831 - sizeof (ethernet_header_t);
833 dpdk_log_warn ("hi NULL");
835 if (dm->conf->no_multi_seg)
836 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
838 rte_eth_dev_set_mtu (xd->port_id, mtu);
846 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
848 vlib_main_t *vm = vlib_get_main ();
851 int num_whitelisted = vec_len (conf->dev_confs);
852 vlib_pci_device_info_t *d = 0;
853 vlib_pci_addr_t *addr = 0, *addrs;
856 addrs = vlib_pci_get_all_dev_addrs ();
858 vec_foreach (addr, addrs)
860 dpdk_device_config_t * devconf = 0;
861 vec_reset_length (pci_addr);
862 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
865 vlib_pci_free_device_info (d);
868 d = vlib_pci_get_device_info (vm, addr, &error);
871 clib_error_report (error);
875 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
880 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
888 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
891 /* Enforce Device blacklist by vendor and device */
892 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
895 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
896 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
897 if (d->vendor_id == vendor && d->device_id == device)
900 * Expected case: device isn't whitelisted,
905 /* Device is blacklisted */
906 pool_get (conf->dev_confs, devconf);
907 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
908 devconf - conf->dev_confs);
909 devconf->pci_addr.as_u32 = addr->as_u32;
910 devconf->is_blacklisted = 1;
913 else /* explicitly whitelisted, ignore the device blacklist */
919 if (d->vendor_id == 0x1af4 &&
920 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
921 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
924 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
927 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
928 * the default is to put it in the blacklist.
932 pool_get (conf->dev_confs, devconf);
933 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
934 devconf - conf->dev_confs);
935 devconf->pci_addr.as_u32 = addr->as_u32;
936 devconf->is_blacklisted = 1;
939 /* all Intel network devices */
940 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
942 /* all Intel QAT devices VFs */
943 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
944 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
945 d->device_id == 0x37c9 || d->device_id == 0x6f55))
948 else if (d->vendor_id == 0x1137 &&
949 (d->device_id == 0x0043 || d->device_id == 0x0071))
952 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
954 /* Amazon Elastic Network Adapter */
955 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
957 /* Cavium Network Adapter */
958 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
960 /* Cavium FastlinQ QL41000 Series */
961 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
963 /* Mellanox CX3, CX3VF */
964 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
968 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
969 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
973 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
974 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
978 /* Broadcom NetXtreme S, and E series only */
979 else if (d->vendor_id == 0x14e4 &&
980 ((d->device_id >= 0x16c0 &&
981 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
982 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
983 d->device_id != 0x16fd && d->device_id != 0x16fe &&
984 d->device_id != 0x170d && d->device_id != 0x170c &&
985 d->device_id != 0x170e && d->device_id != 0x1712 &&
986 d->device_id != 0x1713) ||
987 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
988 d->device_id == 0x1614 || d->device_id == 0x1606 ||
989 d->device_id == 0x1609 || d->device_id == 0x1614)))
993 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
994 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
999 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1005 pool_get (conf->dev_confs, devconf);
1006 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1007 devconf - conf->dev_confs);
1008 devconf->pci_addr.as_u32 = addr->as_u32;
1010 devconf->is_blacklisted = 1;
1011 clib_error_report (error);
1015 vec_free (pci_addr);
1016 vlib_pci_free_device_info (d);
1020 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1022 clib_error_t *error;
1023 vlib_vmbus_addr_t *addrs, *addr = 0;
1025 addrs = vlib_vmbus_get_all_dev_addrs ();
1028 vec_foreach (addr, addrs)
1030 error = vlib_vmbus_bind_to_uio (addr);
1034 clib_error_report (error);
1040 static clib_error_t *
1041 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1042 unformat_input_t * input, u8 is_default)
1044 clib_error_t *error = 0;
1046 dpdk_device_config_t *devconf;
1047 unformat_input_t sub_input;
1051 devconf = &conf->default_devconf;
1055 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1059 pool_get (conf->dev_confs, devconf);
1060 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1061 devconf - conf->dev_confs);
1064 return clib_error_return (0,
1065 "duplicate configuration for PCI address %U",
1066 format_vlib_pci_addr, &pci_addr);
1069 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1070 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1075 unformat_skip_white_space (input);
1076 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1078 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1080 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1082 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1084 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1086 else if (unformat (input, "name %s", &devconf->name))
1088 else if (unformat (input, "workers %U", unformat_bitmap_list,
1093 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1095 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1099 else if (unformat (input, "vlan-strip-offload off"))
1100 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1101 else if (unformat (input, "vlan-strip-offload on"))
1102 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1103 else if (unformat (input, "tso on"))
1105 devconf->tso = DPDK_DEVICE_TSO_ON;
1107 else if (unformat (input, "tso off"))
1109 devconf->tso = DPDK_DEVICE_TSO_OFF;
1111 else if (unformat (input, "devargs %s", &devconf->devargs))
1115 error = clib_error_return (0, "unknown input `%U'",
1116 format_unformat_error, input);
1124 if (devconf->workers && devconf->num_rx_queues == 0)
1125 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1126 else if (devconf->workers &&
1127 clib_bitmap_count_set_bits (devconf->workers) !=
1128 devconf->num_rx_queues)
1130 clib_error_return (0,
1131 "%U: number of worker threads must be "
1132 "equal to number of rx queues", format_vlib_pci_addr,
1138 static clib_error_t *
1139 dpdk_log_read_ready (clib_file_t * uf)
1141 unformat_input_t input;
1148 uword len = vec_len (s);
1149 vec_resize (s, len + n_try);
1151 n = read (uf->file_descriptor, s + len, n_try);
1152 if (n < 0 && errno != EAGAIN)
1153 return clib_error_return_unix (0, "read");
1154 _vec_len (s) = len + (n < 0 ? 0 : n);
1157 unformat_init_vector (&input, s);
1159 while (unformat_user (&input, unformat_line, &line))
1161 dpdk_log_notice ("%v", line);
1165 unformat_free (&input);
1169 static clib_error_t *
1170 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1172 clib_error_t *error = 0;
1173 dpdk_config_main_t *conf = &dpdk_config_main;
1174 vlib_thread_main_t *tm = vlib_get_thread_main ();
1175 dpdk_device_config_t *devconf;
1176 vlib_pci_addr_t pci_addr;
1177 unformat_input_t sub_input;
1178 uword default_hugepage_sz, x;
1181 int num_whitelisted = 0;
1186 u8 *huge_dir_path = 0;
1190 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1192 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1194 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1196 /* Prime the pump */
1197 if (unformat (input, "no-hugetlb"))
1199 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1202 else if (unformat (input, "enable-tcp-udp-checksum"))
1203 conf->enable_tcp_udp_checksum = 1;
1205 else if (unformat (input, "no-tx-checksum-offload"))
1206 conf->no_tx_checksum_offload = 1;
1208 else if (unformat (input, "decimal-interface-names"))
1209 conf->interface_name_format_decimal = 1;
1211 else if (unformat (input, "no-multi-seg"))
1212 conf->no_multi_seg = 1;
1214 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1218 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1226 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1227 unformat_vlib_cli_sub_input, &sub_input))
1229 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1236 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1238 error = dpdk_device_config (conf, pci_addr, 0, 0);
1245 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1246 conf->nchannels_set_manually = 0;
1247 else if (unformat (input, "num-crypto-mbufs %d",
1248 &conf->num_crypto_mbufs))
1250 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1252 else if (unformat (input, "socket-mem %s", &socket_mem))
1254 else if (unformat (input, "no-pci"))
1257 tmp = format (0, "--no-pci%c", 0);
1258 vec_add1 (conf->eal_init_args, tmp);
1260 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1262 u32 blacklist_entry;
1263 if (vendor > 0xFFFF)
1264 return clib_error_return (0, "blacklist PCI vendor out of range");
1265 if (device > 0xFFFF)
1266 return clib_error_return (0, "blacklist PCI device out of range");
1267 blacklist_entry = (vendor << 16) | (device & 0xffff);
1268 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1271 else if (unformat (input, "no-vmbus"))
1274 tmp = format (0, "--no-vmbus%c", 0);
1275 vec_add1 (conf->eal_init_args, tmp);
1279 else if (unformat(input, #a)) \
1281 tmp = format (0, "--%s%c", #a, 0); \
1282 vec_add1 (conf->eal_init_args, tmp); \
1284 foreach_eal_double_hyphen_predicate_arg
1287 else if (unformat(input, #a " %s", &s)) \
1289 if (!strncmp(#a, "file-prefix", 11)) \
1291 tmp = format (0, "--%s%c", #a, 0); \
1292 vec_add1 (conf->eal_init_args, tmp); \
1294 if (!strncmp(#a, "vdev", 4)) \
1295 if (strstr((char*)s, "af_packet")) \
1296 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1297 vec_add1 (conf->eal_init_args, s); \
1299 foreach_eal_double_hyphen_arg
1302 else if (unformat(input, #a " %s", &s)) \
1304 tmp = format (0, "-%s%c", #b, 0); \
1305 vec_add1 (conf->eal_init_args, tmp); \
1307 vec_add1 (conf->eal_init_args, s); \
1309 foreach_eal_single_hyphen_arg
1312 else if (unformat(input, #a " %s", &s)) \
1314 tmp = format (0, "-%s%c", #b, 0); \
1315 vec_add1 (conf->eal_init_args, tmp); \
1317 vec_add1 (conf->eal_init_args, s); \
1318 conf->a##_set_manually = 1; \
1320 foreach_eal_single_hyphen_mandatory_arg
1322 else if (unformat (input, "default"))
1325 else if (unformat_skip_white_space (input))
1329 error = clib_error_return (0, "unknown input `%U'",
1330 format_unformat_error, input);
1335 if (!conf->uio_driver_name)
1336 conf->uio_driver_name = format (0, "auto%c", 0);
1338 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1341 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1345 /* preallocate at least 16MB of hugepages per socket,
1346 if more is needed it is up to consumer to preallocate more */
1347 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1348 n_pages /= default_hugepage_sz;
1350 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1351 clib_error_report (e);
1357 tmp = format (0, "--file-prefix%c", 0);
1358 vec_add1 (conf->eal_init_args, tmp);
1359 tmp = format (0, "vpp%c", 0);
1360 vec_add1 (conf->eal_init_args, tmp);
1366 /* I'll bet that -c and -n must be the first and second args... */
1367 if (!conf->coremask_set_manually)
1369 vlib_thread_registration_t *tr;
1370 uword *coremask = 0;
1373 /* main thread core */
1374 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1376 for (i = 0; i < vec_len (tm->registrations); i++)
1378 tr = tm->registrations[i];
1379 coremask = clib_bitmap_or (coremask, tr->coremask);
1382 vec_insert (conf->eal_init_args, 2, 1);
1383 conf->eal_init_args[1] = (u8 *) "-c";
1384 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1385 conf->eal_init_args[2] = tmp;
1386 clib_bitmap_free (coremask);
1389 if (!conf->nchannels_set_manually)
1391 vec_insert (conf->eal_init_args, 2, 3);
1392 conf->eal_init_args[3] = (u8 *) "-n";
1393 tmp = format (0, "%d", conf->nchannels);
1394 vec_terminate_c_string (tmp);
1395 conf->eal_init_args[4] = tmp;
1398 if (no_pci == 0 && geteuid () == 0)
1399 dpdk_bind_devices_to_uio (conf);
1401 if (no_vmbus == 0 && geteuid () == 0)
1402 dpdk_bind_vmbus_devices_to_uio (conf);
1405 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1406 devconf->x = conf->default_devconf.x ;
1409 pool_foreach (devconf, conf->dev_confs, ({
1411 /* default per-device config items */
1412 foreach_dpdk_device_config_item
1414 /* copy vlan_strip config from default device */
1415 if (devconf->vlan_strip_offload == 0 &&
1416 conf->default_devconf.vlan_strip_offload > 0)
1417 devconf->vlan_strip_offload =
1418 conf->default_devconf.vlan_strip_offload;
1420 /* copy tso config from default device */
1423 /* copy tso config from default device */
1426 /* add DPDK EAL whitelist/blacklist entry */
1427 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1429 tmp = format (0, "-w%c", 0);
1430 vec_add1 (conf->eal_init_args, tmp);
1431 if (devconf->devargs)
1433 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1437 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1439 vec_add1 (conf->eal_init_args, tmp);
1441 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1443 tmp = format (0, "-b%c", 0);
1444 vec_add1 (conf->eal_init_args, tmp);
1445 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1446 vec_add1 (conf->eal_init_args, tmp);
1453 /* set master-lcore */
1454 tmp = format (0, "--master-lcore%c", 0);
1455 vec_add1 (conf->eal_init_args, tmp);
1456 tmp = format (0, "%u%c", tm->main_lcore, 0);
1457 vec_add1 (conf->eal_init_args, tmp);
1461 clib_warning ("socket-mem argument is deprecated");
1463 /* NULL terminate the "argv" vector, in case of stupidity */
1464 vec_add1 (conf->eal_init_args, 0);
1465 _vec_len (conf->eal_init_args) -= 1;
1467 /* Set up DPDK eal and packet mbuf pool early. */
1469 int log_fds[2] = { 0 };
1470 if (pipe (log_fds) == 0)
1472 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1474 FILE *f = fdopen (log_fds[1], "a");
1475 if (f && rte_openlog_stream (f) == 0)
1477 clib_file_t t = { 0 };
1478 t.read_function = dpdk_log_read_ready;
1479 t.file_descriptor = log_fds[0];
1480 t.description = format (0, "DPDK logging pipe");
1481 clib_file_add (&file_main, &t);
1491 vm = vlib_get_main ();
1493 /* make copy of args as rte_eal_init tends to mess up with arg array */
1494 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1495 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1496 conf->eal_init_args[i]);
1498 vec_terminate_c_string (conf->eal_init_args_str);
1500 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1501 ret = rte_eal_init (vec_len (conf->eal_init_args),
1502 (char **) conf->eal_init_args);
1504 /* lazy umount hugepages */
1505 umount2 ((char *) huge_dir_path, MNT_DETACH);
1506 rmdir ((char *) huge_dir_path);
1507 vec_free (huge_dir_path);
1510 return clib_error_return (0, "rte_eal_init returned %d", ret);
1512 /* main thread 1st */
1513 if ((error = dpdk_buffer_pools_create (vm)))
1520 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1523 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1525 vnet_main_t *vnm = vnet_get_main ();
1526 struct rte_eth_link prev_link = xd->link;
1528 u8 hw_flags_chg = 0;
1530 /* only update link state for PMD interfaces */
1531 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1534 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1535 clib_memset (&xd->link, 0, sizeof (xd->link));
1536 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1538 if (LINK_STATE_ELOGS)
1540 vlib_main_t *vm = vlib_get_main ();
1541 ELOG_TYPE_DECLARE (e) =
1544 "update-link-state: sw_if_index %d, admin_up %d,"
1545 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1554 ed = ELOG_DATA (&vm->elog_main, e);
1555 ed->sw_if_index = xd->sw_if_index;
1556 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1557 ed->old_link_state = (u8)
1558 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1559 ed->new_link_state = (u8) xd->link.link_status;
1562 if ((xd->link.link_duplex != prev_link.link_duplex))
1565 switch (xd->link.link_duplex)
1567 case ETH_LINK_HALF_DUPLEX:
1568 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1570 case ETH_LINK_FULL_DUPLEX:
1571 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1577 if (xd->link.link_speed != prev_link.link_speed)
1578 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1579 xd->link.link_speed * 1000);
1581 if (xd->link.link_status != prev_link.link_status)
1585 if (xd->link.link_status)
1586 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1591 if (LINK_STATE_ELOGS)
1593 vlib_main_t *vm = vlib_get_main ();
1595 ELOG_TYPE_DECLARE (e) =
1598 "update-link-state: sw_if_index %d, new flags %d",.format_args
1606 ed = ELOG_DATA (&vm->elog_main, e);
1607 ed->sw_if_index = xd->sw_if_index;
1608 ed->flags = hw_flags;
1610 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1615 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1617 clib_error_t *error;
1618 dpdk_main_t *dm = &dpdk_main;
1620 vlib_thread_main_t *tm = vlib_get_thread_main ();
1622 error = dpdk_lib_init (dm);
1625 clib_error_report (error);
1627 error = dpdk_cryptodev_init (vm);
1629 clib_error_report (error);
1631 tm->worker_thread_release = 1;
1633 f64 now = vlib_time_now (vm);
1634 vec_foreach (xd, dm->devices)
1636 dpdk_update_link_state (xd, now);
1642 * check each time through the loop in case intervals are changed
1644 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1645 dm->link_state_poll_interval : dm->stat_poll_interval;
1647 vlib_process_wait_for_event_or_clock (vm, min_wait);
1649 if (dm->admin_up_down_in_progress)
1650 /* skip the poll if an admin up down is in progress (on any interface) */
1653 vec_foreach (xd, dm->devices)
1655 f64 now = vlib_time_now (vm);
1656 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1657 dpdk_update_counters (xd, now);
1658 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1659 dpdk_update_link_state (xd, now);
1668 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1669 .function = dpdk_process,
1670 .type = VLIB_NODE_TYPE_PROCESS,
1671 .name = "dpdk-process",
1672 .process_log2_n_stack_bytes = 17,
1676 static clib_error_t *
1677 dpdk_init (vlib_main_t * vm)
1679 dpdk_main_t *dm = &dpdk_main;
1680 clib_error_t *error = 0;
1682 /* verify that structs are cacheline aligned */
1683 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1684 "Cache line marker must be 1st element in dpdk_device_t");
1685 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1686 CLIB_CACHE_LINE_BYTES,
1687 "Data in cache line 0 is bigger than cache line size");
1688 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1689 "Cache line marker must be 1st element in frame_queue_trace_t");
1690 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1691 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1693 dpdk_cli_reference ();
1696 dm->vnet_main = vnet_get_main ();
1697 dm->conf = &dpdk_config_main;
1699 dm->conf->nchannels = 4;
1700 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1701 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1703 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1704 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1705 VLIB_BUFFER_EXT_HDR_VALID |
1706 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1707 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1709 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1710 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1712 dm->log_default = vlib_log_register_class ("dpdk", 0);
1717 VLIB_INIT_FUNCTION (dpdk_init);
1720 * fd.io coding-style-patch-verification: ON
1723 * eval: (c-set-style "gnu")