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 dpdk_portid_t next_port_id;
253 dpdk_device_config_t *devconf = 0;
254 vlib_pci_addr_t pci_addr;
257 if (!rte_eth_dev_is_valid_port(i))
260 rte_eth_dev_info_get (i, &dev_info);
262 if (dev_info.device == 0)
264 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
265 dev_info.driver_name);
269 pci_dev = dpdk_get_pci_device (&dev_info);
273 pci_addr.domain = pci_dev->addr.domain;
274 pci_addr.bus = pci_dev->addr.bus;
275 pci_addr.slot = pci_dev->addr.devid;
276 pci_addr.function = pci_dev->addr.function;
277 p = hash_get (dm->conf->device_config_index_by_pci_addr,
282 /* Create vnet interface */
283 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
284 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
285 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
286 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
290 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
291 xd->name = devconf->name;
294 devconf = &dm->conf->default_devconf;
296 /* Handle representor devices that share the same PCI ID */
297 if (dev_info.switch_info.domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
299 if (dev_info.switch_info.port_id != (uint16_t)-1)
300 xd->interface_name_suffix = format (0, "%d", dev_info.switch_info.port_id);
302 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
304 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
306 struct rte_eth_dev_info di = { 0 };
307 struct rte_pci_device *next_pci_dev;
308 rte_eth_dev_info_get (next_port_id, &di);
309 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
311 pci_addr.as_u32 != last_pci_addr.as_u32 &&
312 memcmp (&pci_dev->addr, &next_pci_dev->addr,
313 sizeof (struct rte_pci_addr)) == 0)
315 xd->interface_name_suffix = format (0, "0");
316 last_pci_addr.as_u32 = pci_addr.as_u32;
317 last_pci_addr_port = i;
319 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
321 xd->interface_name_suffix =
322 format (0, "%u", i - last_pci_addr_port);
326 last_pci_addr.as_u32 = ~0;
330 last_pci_addr.as_u32 = ~0;
332 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
333 sizeof (struct rte_eth_txconf));
335 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
337 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
338 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
341 if (dm->conf->enable_tcp_udp_checksum)
343 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_UDP_CKSUM)
344 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_UDP_CKSUM;
345 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_TCP_CKSUM)
346 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_TCP_CKSUM;
349 if (dm->conf->no_multi_seg)
351 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
352 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
353 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
357 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
358 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
359 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
360 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
363 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
365 if (devconf->num_tx_queues > 0
366 && devconf->num_tx_queues < xd->tx_q_used)
367 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
369 if (devconf->num_rx_queues > 1
370 && dev_info.max_rx_queues >= devconf->num_rx_queues)
372 xd->rx_q_used = devconf->num_rx_queues;
373 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
374 if (devconf->rss_fn == 0)
375 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
376 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
379 u64 unsupported_bits;
380 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
381 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
382 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
383 if (unsupported_bits)
384 dpdk_log_warn ("Unsupported RSS hash functions: %U",
385 format_dpdk_rss_hf_name, unsupported_bits);
387 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
388 dev_info.flow_type_rss_offloads;
393 xd->flags |= DPDK_DEVICE_FLAG_PMD;
395 /* workaround for drivers not setting driver_name */
396 if ((!dev_info.driver_name) && (pci_dev))
397 dev_info.driver_name = pci_dev->driver->driver.name;
399 ASSERT (dev_info.driver_name);
405 #define _(s,f) else if (dev_info.driver_name && \
406 !strcmp(dev_info.driver_name, s)) \
407 xd->pmd = VNET_DPDK_PMD_##f;
413 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
415 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
416 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
417 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
421 /* Drivers with valid speed_capa set */
422 case VNET_DPDK_PMD_E1000EM:
423 case VNET_DPDK_PMD_IGB:
424 case VNET_DPDK_PMD_IXGBE:
425 case VNET_DPDK_PMD_I40E:
426 case VNET_DPDK_PMD_ICE:
427 xd->port_type = port_type_from_speed_capa (&dev_info);
428 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
429 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
430 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
431 VNET_FLOW_ACTION_BUFFER_ADVANCE |
432 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP |
433 VNET_FLOW_ACTION_RSS;
435 if (dm->conf->no_tx_checksum_offload == 0)
437 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
438 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
440 DPDK_DEVICE_FLAG_TX_OFFLOAD |
441 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
446 case VNET_DPDK_PMD_CXGBE:
447 case VNET_DPDK_PMD_MLX4:
448 case VNET_DPDK_PMD_MLX5:
449 case VNET_DPDK_PMD_QEDE:
450 case VNET_DPDK_PMD_BNXT:
451 xd->port_type = port_type_from_speed_capa (&dev_info);
455 case VNET_DPDK_PMD_IGBVF:
456 case VNET_DPDK_PMD_IXGBEVF:
457 case VNET_DPDK_PMD_I40EVF:
458 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
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_IAVF:
471 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
472 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
473 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
474 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
475 VNET_FLOW_ACTION_BUFFER_ADVANCE |
476 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
478 if (dm->conf->no_tx_checksum_offload == 0)
480 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
481 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
483 DPDK_DEVICE_FLAG_TX_OFFLOAD |
484 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
488 case VNET_DPDK_PMD_THUNDERX:
489 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
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;
495 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
499 case VNET_DPDK_PMD_ENA:
500 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
501 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
504 case VNET_DPDK_PMD_DPAA2:
505 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
509 case VNET_DPDK_PMD_ENIC:
511 struct rte_eth_link l;
512 rte_eth_link_get_nowait (i, &l);
513 xd->port_type = port_type_from_link_speed (l.link_speed);
514 if (dm->conf->enable_tcp_udp_checksum)
515 dpdk_enable_l4_csum_offload (xd);
519 /* Intel Red Rock Canyon */
520 case VNET_DPDK_PMD_FM10K:
521 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
525 case VNET_DPDK_PMD_VIRTIO:
526 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_NONE;
527 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
528 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
529 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
533 case VNET_DPDK_PMD_VMXNET3:
534 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
535 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
538 case VNET_DPDK_PMD_AF_PACKET:
539 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
540 xd->af_packet_instance_num = af_packet_instance_num++;
543 case VNET_DPDK_PMD_VIRTIO_USER:
544 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
547 case VNET_DPDK_PMD_VHOST_ETHER:
548 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
551 case VNET_DPDK_PMD_LIOVF_ETHER:
552 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
555 case VNET_DPDK_PMD_FAILSAFE:
556 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
557 xd->port_conf.intr_conf.lsc = 1;
560 case VNET_DPDK_PMD_NETVSC:
562 struct rte_eth_link l;
563 rte_eth_link_get_nowait (i, &l);
564 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
569 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
572 if (devconf->num_rx_desc)
573 xd->nb_rx_desc = devconf->num_rx_desc;
576 /* If num_rx_desc is not specified by VPP user, the current CPU is working
577 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
578 from original 1024 to help reduce TLB misses.
580 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
581 && check_l3cache() == 0)
582 xd->nb_rx_desc = 512;
585 if (devconf->num_tx_desc)
586 xd->nb_tx_desc = devconf->num_tx_desc;
589 /* If num_tx_desc is not specified by VPP user, the current CPU is working
590 with 2M page and has no L3 cache, default num_tx_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_tx_desc = 512;
599 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
601 f64 now = vlib_time_now (vm);
603 rnd = (u32) (now * 1e6);
604 rnd = random_u32 (&rnd);
605 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
610 rte_eth_macaddr_get (i, (void *) addr);
612 if (xd->tx_q_used < tm->n_vlib_mains)
613 for (int q = 0; q < xd->tx_q_used; q++)
615 dpdk_rx_queue_t *rxq = vec_elt_at_index (xd->rx_queues, q);
616 clib_spinlock_init (&rxq->lock);
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;
741 /* Indicate ability to support L3 DMAC filtering and
742 * initialize interface to L3 non-promisc mode */
743 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_MAC_FILTER;
744 ethernet_set_flags (dm->vnet_main, xd->hw_if_index,
745 ETHERNET_INTERFACE_FLAG_DEFAULT_L3);
748 if (dm->conf->no_tx_checksum_offload == 0)
749 if (xd->flags & DPDK_DEVICE_FLAG_TX_OFFLOAD && hi != NULL)
750 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD;
752 if (devconf->tso == DPDK_DEVICE_TSO_ON && hi != NULL)
754 /*tcp_udp checksum must be enabled*/
755 if ((dm->conf->enable_tcp_udp_checksum) &&
756 (hi->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_TX_L4_CKSUM_OFFLOAD))
758 hi->flags |= VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO;
759 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
760 DEV_TX_OFFLOAD_UDP_TSO;
763 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
767 dpdk_device_setup (xd);
769 if (vec_len (xd->errors))
770 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
771 format_dpdk_device_name, i,
772 format_dpdk_device_errors, xd);
775 * A note on Cisco VIC (PMD_ENIC) and VLAN:
777 * With Cisco VIC vNIC, every ingress packet is tagged. On a
778 * trunk vNIC (C series "standalone" server), packets on no VLAN
779 * are tagged with vlan 0. On an access vNIC (standalone or B
780 * series "blade" server), packets on the default/native VLAN
781 * are tagged with that vNIC's VLAN. VPP expects these packets
782 * to be untagged, and previously enabled VLAN strip on VIC by
783 * default. But it also broke vlan sub-interfaces.
785 * The VIC adapter has "untag default vlan" ingress VLAN rewrite
786 * mode, which removes tags from these packets. VPP now includes
787 * a local patch for the enic driver to use this untag mode, so
788 * enabling vlan stripping is no longer needed. In future, the
789 * driver + dpdk will have an API to set the mode after
790 * rte_eal_init. Then, this note and local patch will be
795 * VLAN stripping: default to VLAN strip disabled, unless specified
796 * otherwise in the startup config.
799 vlan_off = rte_eth_dev_get_vlan_offload (xd->port_id);
800 if (devconf->vlan_strip_offload == DPDK_DEVICE_VLAN_STRIP_ON)
802 vlan_off |= ETH_VLAN_STRIP_OFFLOAD;
803 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
804 dpdk_log_info ("VLAN strip enabled for interface\n");
806 dpdk_log_warn ("VLAN strip cannot be supported by interface\n");
807 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_VLAN_STRIP;
811 if (vlan_off & ETH_VLAN_STRIP_OFFLOAD)
813 vlan_off &= ~ETH_VLAN_STRIP_OFFLOAD;
814 if (rte_eth_dev_set_vlan_offload (xd->port_id, vlan_off) >= 0)
815 dpdk_log_warn ("set VLAN offload failed\n");
817 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_VLAN_STRIP;
821 hi->max_packet_bytes = xd->port_conf.rxmode.max_rx_pkt_len
822 - sizeof (ethernet_header_t);
824 dpdk_log_warn ("hi NULL");
826 if (dm->conf->no_multi_seg)
827 mtu = mtu > ETHER_MAX_LEN ? ETHER_MAX_LEN : mtu;
829 rte_eth_dev_set_mtu (xd->port_id, mtu);
837 dpdk_bind_devices_to_uio (dpdk_config_main_t * conf)
839 vlib_main_t *vm = vlib_get_main ();
842 int num_whitelisted = vec_len (conf->dev_confs);
843 vlib_pci_device_info_t *d = 0;
844 vlib_pci_addr_t *addr = 0, *addrs;
847 addrs = vlib_pci_get_all_dev_addrs ();
849 vec_foreach (addr, addrs)
851 dpdk_device_config_t * devconf = 0;
852 vec_reset_length (pci_addr);
853 pci_addr = format (pci_addr, "%U%c", format_vlib_pci_addr, addr, 0);
856 vlib_pci_free_device_info (d);
859 d = vlib_pci_get_device_info (vm, addr, &error);
862 clib_error_report (error);
866 if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && d->device_class != PCI_CLASS_PROCESSOR_CO)
871 uword * p = hash_get (conf->device_config_index_by_pci_addr, addr->as_u32);
879 devconf = pool_elt_at_index (conf->dev_confs, p[0]);
882 /* Enforce Device blacklist by vendor and device */
883 for (i = 0; i < vec_len (conf->blacklist_by_pci_vendor_and_device); i++)
886 vendor = (u16)(conf->blacklist_by_pci_vendor_and_device[i] >> 16);
887 device = (u16)(conf->blacklist_by_pci_vendor_and_device[i] & 0xFFFF);
888 if (d->vendor_id == vendor && d->device_id == device)
891 * Expected case: device isn't whitelisted,
896 /* Device is blacklisted */
897 pool_get (conf->dev_confs, devconf);
898 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
899 devconf - conf->dev_confs);
900 devconf->pci_addr.as_u32 = addr->as_u32;
901 devconf->is_blacklisted = 1;
904 else /* explicitly whitelisted, ignore the device blacklist */
910 if (d->vendor_id == 0x1af4 &&
911 (d->device_id == VIRTIO_PCI_LEGACY_DEVICEID_NET ||
912 d->device_id == VIRTIO_PCI_MODERN_DEVICEID_NET))
915 else if (d->vendor_id == 0x15ad && d->device_id == 0x07b0)
918 * For vmxnet3 PCI, unless it is explicitly specified in the whitelist,
919 * the default is to put it in the blacklist.
923 pool_get (conf->dev_confs, devconf);
924 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
925 devconf - conf->dev_confs);
926 devconf->pci_addr.as_u32 = addr->as_u32;
927 devconf->is_blacklisted = 1;
930 /* all Intel network devices */
931 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_NETWORK_ETHERNET)
933 /* all Intel QAT devices VFs */
934 else if (d->vendor_id == 0x8086 && d->device_class == PCI_CLASS_PROCESSOR_CO &&
935 (d->device_id == 0x0443 || d->device_id == 0x18a1 || d->device_id == 0x19e3 ||
936 d->device_id == 0x37c9 || d->device_id == 0x6f55))
939 else if (d->vendor_id == 0x1137 &&
940 (d->device_id == 0x0043 || d->device_id == 0x0071))
943 else if (d->vendor_id == 0x1425 && (d->device_id & 0xe000) == 0x4000)
945 /* Amazon Elastic Network Adapter */
946 else if (d->vendor_id == 0x1d0f && d->device_id >= 0xec20 && d->device_id <= 0xec21)
948 /* Cavium Network Adapter */
949 else if (d->vendor_id == 0x177d && d->device_id == 0x9712)
951 /* Cavium FastlinQ QL41000 Series */
952 else if (d->vendor_id == 0x1077 && d->device_id >= 0x8070 && d->device_id <= 0x8090)
954 /* Mellanox CX3, CX3VF */
955 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
959 /* Mellanox CX4, CX4VF, CX4LX, CX4LXVF, CX5, CX5VF, CX5EX, CX5EXVF */
960 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
964 /* Mellanox CX6, CX6VF, CX6DX, CX6DXVF */
965 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x101b && d->device_id <= 0x101e)
969 /* Broadcom NetXtreme S, and E series only */
970 else if (d->vendor_id == 0x14e4 &&
971 ((d->device_id >= 0x16c0 &&
972 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
973 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
974 d->device_id != 0x16fd && d->device_id != 0x16fe &&
975 d->device_id != 0x170d && d->device_id != 0x170c &&
976 d->device_id != 0x170e && d->device_id != 0x1712 &&
977 d->device_id != 0x1713) ||
978 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
979 d->device_id == 0x1614 || d->device_id == 0x1606 ||
980 d->device_id == 0x1609 || d->device_id == 0x1614)))
984 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
985 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
990 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
996 pool_get (conf->dev_confs, devconf);
997 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
998 devconf - conf->dev_confs);
999 devconf->pci_addr.as_u32 = addr->as_u32;
1001 devconf->is_blacklisted = 1;
1002 clib_error_report (error);
1006 vec_free (pci_addr);
1007 vlib_pci_free_device_info (d);
1011 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1013 clib_error_t *error;
1014 vlib_vmbus_addr_t *addrs, *addr = 0;
1016 addrs = vlib_vmbus_get_all_dev_addrs ();
1019 vec_foreach (addr, addrs)
1021 error = vlib_vmbus_bind_to_uio (addr);
1025 clib_error_report (error);
1031 static clib_error_t *
1032 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1033 unformat_input_t * input, u8 is_default)
1035 clib_error_t *error = 0;
1037 dpdk_device_config_t *devconf;
1038 unformat_input_t sub_input;
1042 devconf = &conf->default_devconf;
1046 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1050 pool_get (conf->dev_confs, devconf);
1051 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1052 devconf - conf->dev_confs);
1055 return clib_error_return (0,
1056 "duplicate configuration for PCI address %U",
1057 format_vlib_pci_addr, &pci_addr);
1060 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1061 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1066 unformat_skip_white_space (input);
1067 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1069 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1071 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1073 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1075 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1077 else if (unformat (input, "name %s", &devconf->name))
1079 else if (unformat (input, "workers %U", unformat_bitmap_list,
1084 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1086 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1090 else if (unformat (input, "vlan-strip-offload off"))
1091 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1092 else if (unformat (input, "vlan-strip-offload on"))
1093 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1094 else if (unformat (input, "tso on"))
1096 devconf->tso = DPDK_DEVICE_TSO_ON;
1098 else if (unformat (input, "tso off"))
1100 devconf->tso = DPDK_DEVICE_TSO_OFF;
1102 else if (unformat (input, "devargs %s", &devconf->devargs))
1106 error = clib_error_return (0, "unknown input `%U'",
1107 format_unformat_error, input);
1115 if (devconf->workers && devconf->num_rx_queues == 0)
1116 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1117 else if (devconf->workers &&
1118 clib_bitmap_count_set_bits (devconf->workers) !=
1119 devconf->num_rx_queues)
1121 clib_error_return (0,
1122 "%U: number of worker threads must be "
1123 "equal to number of rx queues", format_vlib_pci_addr,
1129 static clib_error_t *
1130 dpdk_log_read_ready (clib_file_t * uf)
1132 unformat_input_t input;
1139 uword len = vec_len (s);
1140 vec_resize (s, len + n_try);
1142 n = read (uf->file_descriptor, s + len, n_try);
1143 if (n < 0 && errno != EAGAIN)
1144 return clib_error_return_unix (0, "read");
1145 _vec_len (s) = len + (n < 0 ? 0 : n);
1148 unformat_init_vector (&input, s);
1150 while (unformat_user (&input, unformat_line, &line))
1152 dpdk_log_notice ("%v", line);
1156 unformat_free (&input);
1160 static clib_error_t *
1161 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1163 clib_error_t *error = 0;
1164 dpdk_config_main_t *conf = &dpdk_config_main;
1165 vlib_thread_main_t *tm = vlib_get_thread_main ();
1166 dpdk_device_config_t *devconf;
1167 vlib_pci_addr_t pci_addr;
1168 unformat_input_t sub_input;
1169 uword default_hugepage_sz, x;
1172 int num_whitelisted = 0;
1177 u8 *huge_dir_path = 0;
1181 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1183 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1185 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1187 /* Prime the pump */
1188 if (unformat (input, "no-hugetlb"))
1190 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1193 else if (unformat (input, "enable-tcp-udp-checksum"))
1194 conf->enable_tcp_udp_checksum = 1;
1196 else if (unformat (input, "no-tx-checksum-offload"))
1197 conf->no_tx_checksum_offload = 1;
1199 else if (unformat (input, "decimal-interface-names"))
1200 conf->interface_name_format_decimal = 1;
1202 else if (unformat (input, "no-multi-seg"))
1203 conf->no_multi_seg = 1;
1205 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1209 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1217 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1218 unformat_vlib_cli_sub_input, &sub_input))
1220 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1227 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1229 error = dpdk_device_config (conf, pci_addr, 0, 0);
1236 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1237 conf->nchannels_set_manually = 0;
1238 else if (unformat (input, "num-crypto-mbufs %d",
1239 &conf->num_crypto_mbufs))
1241 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1243 else if (unformat (input, "socket-mem %s", &socket_mem))
1245 else if (unformat (input, "no-pci"))
1248 tmp = format (0, "--no-pci%c", 0);
1249 vec_add1 (conf->eal_init_args, tmp);
1251 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1253 u32 blacklist_entry;
1254 if (vendor > 0xFFFF)
1255 return clib_error_return (0, "blacklist PCI vendor out of range");
1256 if (device > 0xFFFF)
1257 return clib_error_return (0, "blacklist PCI device out of range");
1258 blacklist_entry = (vendor << 16) | (device & 0xffff);
1259 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1262 else if (unformat (input, "no-vmbus"))
1265 tmp = format (0, "--no-vmbus%c", 0);
1266 vec_add1 (conf->eal_init_args, tmp);
1270 else if (unformat(input, #a)) \
1272 tmp = format (0, "--%s%c", #a, 0); \
1273 vec_add1 (conf->eal_init_args, tmp); \
1275 foreach_eal_double_hyphen_predicate_arg
1278 else if (unformat(input, #a " %s", &s)) \
1280 if (!strncmp(#a, "file-prefix", 11)) \
1282 tmp = format (0, "--%s%c", #a, 0); \
1283 vec_add1 (conf->eal_init_args, tmp); \
1285 if (!strncmp(#a, "vdev", 4)) \
1286 if (strstr((char*)s, "af_packet")) \
1287 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1288 vec_add1 (conf->eal_init_args, s); \
1290 foreach_eal_double_hyphen_arg
1293 else if (unformat(input, #a " %s", &s)) \
1295 tmp = format (0, "-%s%c", #b, 0); \
1296 vec_add1 (conf->eal_init_args, tmp); \
1298 vec_add1 (conf->eal_init_args, s); \
1300 foreach_eal_single_hyphen_arg
1303 else if (unformat(input, #a " %s", &s)) \
1305 tmp = format (0, "-%s%c", #b, 0); \
1306 vec_add1 (conf->eal_init_args, tmp); \
1308 vec_add1 (conf->eal_init_args, s); \
1309 conf->a##_set_manually = 1; \
1311 foreach_eal_single_hyphen_mandatory_arg
1313 else if (unformat (input, "default"))
1316 else if (unformat_skip_white_space (input))
1320 error = clib_error_return (0, "unknown input `%U'",
1321 format_unformat_error, input);
1326 if (!conf->uio_driver_name)
1327 conf->uio_driver_name = format (0, "auto%c", 0);
1329 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1332 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1336 /* preallocate at least 16MB of hugepages per socket,
1337 if more is needed it is up to consumer to preallocate more */
1338 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1339 n_pages /= default_hugepage_sz;
1341 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1342 clib_error_report (e);
1348 tmp = format (0, "--file-prefix%c", 0);
1349 vec_add1 (conf->eal_init_args, tmp);
1350 tmp = format (0, "vpp%c", 0);
1351 vec_add1 (conf->eal_init_args, tmp);
1357 /* I'll bet that -c and -n must be the first and second args... */
1358 if (!conf->coremask_set_manually)
1360 vlib_thread_registration_t *tr;
1361 uword *coremask = 0;
1364 /* main thread core */
1365 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1367 for (i = 0; i < vec_len (tm->registrations); i++)
1369 tr = tm->registrations[i];
1370 coremask = clib_bitmap_or (coremask, tr->coremask);
1373 vec_insert (conf->eal_init_args, 2, 1);
1374 conf->eal_init_args[1] = (u8 *) "-c";
1375 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1376 conf->eal_init_args[2] = tmp;
1377 clib_bitmap_free (coremask);
1380 if (!conf->nchannels_set_manually)
1382 vec_insert (conf->eal_init_args, 2, 3);
1383 conf->eal_init_args[3] = (u8 *) "-n";
1384 tmp = format (0, "%d", conf->nchannels);
1385 vec_terminate_c_string (tmp);
1386 conf->eal_init_args[4] = tmp;
1389 if (no_pci == 0 && geteuid () == 0)
1390 dpdk_bind_devices_to_uio (conf);
1392 if (no_vmbus == 0 && geteuid () == 0)
1393 dpdk_bind_vmbus_devices_to_uio (conf);
1396 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1397 devconf->x = conf->default_devconf.x ;
1400 pool_foreach (devconf, conf->dev_confs, ({
1402 /* default per-device config items */
1403 foreach_dpdk_device_config_item
1405 /* copy vlan_strip config from default device */
1406 if (devconf->vlan_strip_offload == 0 &&
1407 conf->default_devconf.vlan_strip_offload > 0)
1408 devconf->vlan_strip_offload =
1409 conf->default_devconf.vlan_strip_offload;
1411 /* copy tso config from default device */
1414 /* copy tso config from default device */
1417 /* add DPDK EAL whitelist/blacklist entry */
1418 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1420 tmp = format (0, "-w%c", 0);
1421 vec_add1 (conf->eal_init_args, tmp);
1422 if (devconf->devargs)
1424 tmp = format (0, "%U,%s", format_vlib_pci_addr, &devconf->pci_addr, devconf->devargs, 0);
1428 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1430 vec_add1 (conf->eal_init_args, tmp);
1432 else if (num_whitelisted == 0 && devconf->is_blacklisted != 0)
1434 tmp = format (0, "-b%c", 0);
1435 vec_add1 (conf->eal_init_args, tmp);
1436 tmp = format (0, "%U%c", format_vlib_pci_addr, &devconf->pci_addr, 0);
1437 vec_add1 (conf->eal_init_args, tmp);
1444 /* set master-lcore */
1445 tmp = format (0, "--master-lcore%c", 0);
1446 vec_add1 (conf->eal_init_args, tmp);
1447 tmp = format (0, "%u%c", tm->main_lcore, 0);
1448 vec_add1 (conf->eal_init_args, tmp);
1452 clib_warning ("socket-mem argument is deprecated");
1454 /* NULL terminate the "argv" vector, in case of stupidity */
1455 vec_add1 (conf->eal_init_args, 0);
1456 _vec_len (conf->eal_init_args) -= 1;
1458 /* Set up DPDK eal and packet mbuf pool early. */
1460 int log_fds[2] = { 0 };
1461 if (pipe (log_fds) == 0)
1463 if (fcntl (log_fds[1], F_SETFL, O_NONBLOCK) == 0)
1465 FILE *f = fdopen (log_fds[1], "a");
1466 if (f && rte_openlog_stream (f) == 0)
1468 clib_file_t t = { 0 };
1469 t.read_function = dpdk_log_read_ready;
1470 t.file_descriptor = log_fds[0];
1471 t.description = format (0, "DPDK logging pipe");
1472 clib_file_add (&file_main, &t);
1482 vm = vlib_get_main ();
1484 /* make copy of args as rte_eal_init tends to mess up with arg array */
1485 for (i = 1; i < vec_len (conf->eal_init_args); i++)
1486 conf->eal_init_args_str = format (conf->eal_init_args_str, "%s ",
1487 conf->eal_init_args[i]);
1489 vec_terminate_c_string (conf->eal_init_args_str);
1491 dpdk_log_warn ("EAL init args: %s", conf->eal_init_args_str);
1492 ret = rte_eal_init (vec_len (conf->eal_init_args),
1493 (char **) conf->eal_init_args);
1495 /* lazy umount hugepages */
1496 umount2 ((char *) huge_dir_path, MNT_DETACH);
1497 rmdir ((char *) huge_dir_path);
1498 vec_free (huge_dir_path);
1501 return clib_error_return (0, "rte_eal_init returned %d", ret);
1503 /* main thread 1st */
1504 if ((error = dpdk_buffer_pools_create (vm)))
1511 VLIB_CONFIG_FUNCTION (dpdk_config, "dpdk");
1514 dpdk_update_link_state (dpdk_device_t * xd, f64 now)
1516 vnet_main_t *vnm = vnet_get_main ();
1517 struct rte_eth_link prev_link = xd->link;
1519 u8 hw_flags_chg = 0;
1521 /* only update link state for PMD interfaces */
1522 if ((xd->flags & DPDK_DEVICE_FLAG_PMD) == 0)
1525 xd->time_last_link_update = now ? now : xd->time_last_link_update;
1526 clib_memset (&xd->link, 0, sizeof (xd->link));
1527 rte_eth_link_get_nowait (xd->port_id, &xd->link);
1529 if (LINK_STATE_ELOGS)
1531 vlib_main_t *vm = vlib_get_main ();
1532 ELOG_TYPE_DECLARE (e) =
1535 "update-link-state: sw_if_index %d, admin_up %d,"
1536 "old link_state %d new link_state %d",.format_args = "i4i1i1i1",};
1545 ed = ELOG_DATA (&vm->elog_main, e);
1546 ed->sw_if_index = xd->sw_if_index;
1547 ed->admin_up = (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP) != 0;
1548 ed->old_link_state = (u8)
1549 vnet_hw_interface_is_link_up (vnm, xd->hw_if_index);
1550 ed->new_link_state = (u8) xd->link.link_status;
1553 if ((xd->link.link_duplex != prev_link.link_duplex))
1556 switch (xd->link.link_duplex)
1558 case ETH_LINK_HALF_DUPLEX:
1559 hw_flags |= VNET_HW_INTERFACE_FLAG_HALF_DUPLEX;
1561 case ETH_LINK_FULL_DUPLEX:
1562 hw_flags |= VNET_HW_INTERFACE_FLAG_FULL_DUPLEX;
1568 if (xd->link.link_speed != prev_link.link_speed)
1569 vnet_hw_interface_set_link_speed (vnm, xd->hw_if_index,
1570 xd->link.link_speed * 1000);
1572 if (xd->link.link_status != prev_link.link_status)
1576 if (xd->link.link_status)
1577 hw_flags |= VNET_HW_INTERFACE_FLAG_LINK_UP;
1582 if (LINK_STATE_ELOGS)
1584 vlib_main_t *vm = vlib_get_main ();
1586 ELOG_TYPE_DECLARE (e) =
1589 "update-link-state: sw_if_index %d, new flags %d",.format_args
1597 ed = ELOG_DATA (&vm->elog_main, e);
1598 ed->sw_if_index = xd->sw_if_index;
1599 ed->flags = hw_flags;
1601 vnet_hw_interface_set_flags (vnm, xd->hw_if_index, hw_flags);
1606 dpdk_process (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
1608 clib_error_t *error;
1609 dpdk_main_t *dm = &dpdk_main;
1611 vlib_thread_main_t *tm = vlib_get_thread_main ();
1613 error = dpdk_lib_init (dm);
1616 clib_error_report (error);
1618 error = dpdk_cryptodev_init (vm);
1620 clib_error_report (error);
1622 tm->worker_thread_release = 1;
1624 f64 now = vlib_time_now (vm);
1625 vec_foreach (xd, dm->devices)
1627 dpdk_update_link_state (xd, now);
1633 * check each time through the loop in case intervals are changed
1635 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1636 dm->link_state_poll_interval : dm->stat_poll_interval;
1638 vlib_process_wait_for_event_or_clock (vm, min_wait);
1640 if (dm->admin_up_down_in_progress)
1641 /* skip the poll if an admin up down is in progress (on any interface) */
1644 vec_foreach (xd, dm->devices)
1646 f64 now = vlib_time_now (vm);
1647 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1648 dpdk_update_counters (xd, now);
1649 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1650 dpdk_update_link_state (xd, now);
1659 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1660 .function = dpdk_process,
1661 .type = VLIB_NODE_TYPE_PROCESS,
1662 .name = "dpdk-process",
1663 .process_log2_n_stack_bytes = 17,
1667 static clib_error_t *
1668 dpdk_init (vlib_main_t * vm)
1670 dpdk_main_t *dm = &dpdk_main;
1671 clib_error_t *error = 0;
1673 /* verify that structs are cacheline aligned */
1674 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1675 "Cache line marker must be 1st element in dpdk_device_t");
1676 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1677 CLIB_CACHE_LINE_BYTES,
1678 "Data in cache line 0 is bigger than cache line size");
1679 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1680 "Cache line marker must be 1st element in frame_queue_trace_t");
1681 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1682 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1684 dpdk_cli_reference ();
1687 dm->vnet_main = vnet_get_main ();
1688 dm->conf = &dpdk_config_main;
1690 dm->conf->nchannels = 4;
1691 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1692 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1694 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1695 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1696 VLIB_BUFFER_EXT_HDR_VALID |
1697 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1698 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1700 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1701 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1703 dm->log_default = vlib_log_register_class ("dpdk", 0);
1708 VLIB_INIT_FUNCTION (dpdk_init);
1711 * fd.io coding-style-patch-verification: ON
1714 * eval: (c-set-style "gnu")