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 <vlib/pci/pci.h>
28 #include <vlib/vmbus/vmbus.h>
36 #include <sys/mount.h>
41 #include <dpdk/device/dpdk_priv.h>
43 #define ETHER_MAX_LEN 1518 /**< Maximum frame len, including CRC. */
45 dpdk_main_t dpdk_main;
46 dpdk_config_main_t dpdk_config_main;
48 #define LINK_STATE_ELOGS 0
50 /* Port configuration, mildly modified Intel app values */
52 static dpdk_port_type_t
53 port_type_from_speed_capa (struct rte_eth_dev_info *dev_info)
56 if (dev_info->speed_capa & ETH_LINK_SPEED_100G)
57 return VNET_DPDK_PORT_TYPE_ETH_100G;
58 else if (dev_info->speed_capa & ETH_LINK_SPEED_56G)
59 return VNET_DPDK_PORT_TYPE_ETH_56G;
60 else if (dev_info->speed_capa & ETH_LINK_SPEED_50G)
61 return VNET_DPDK_PORT_TYPE_ETH_50G;
62 else if (dev_info->speed_capa & ETH_LINK_SPEED_40G)
63 return VNET_DPDK_PORT_TYPE_ETH_40G;
64 else if (dev_info->speed_capa & ETH_LINK_SPEED_25G)
65 return VNET_DPDK_PORT_TYPE_ETH_25G;
66 else if (dev_info->speed_capa & ETH_LINK_SPEED_20G)
67 return VNET_DPDK_PORT_TYPE_ETH_20G;
68 else if (dev_info->speed_capa & ETH_LINK_SPEED_10G)
69 return VNET_DPDK_PORT_TYPE_ETH_10G;
70 else if (dev_info->speed_capa & ETH_LINK_SPEED_5G)
71 return VNET_DPDK_PORT_TYPE_ETH_5G;
72 else if (dev_info->speed_capa & ETH_LINK_SPEED_2_5G)
73 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
74 else if (dev_info->speed_capa & ETH_LINK_SPEED_1G)
75 return VNET_DPDK_PORT_TYPE_ETH_1G;
77 return VNET_DPDK_PORT_TYPE_UNKNOWN;
80 static dpdk_port_type_t
81 port_type_from_link_speed (u32 link_speed)
85 case ETH_SPEED_NUM_1G:
86 return VNET_DPDK_PORT_TYPE_ETH_1G;
87 case ETH_SPEED_NUM_2_5G:
88 return VNET_DPDK_PORT_TYPE_ETH_2_5G;
89 case ETH_SPEED_NUM_5G:
90 return VNET_DPDK_PORT_TYPE_ETH_5G;
91 case ETH_SPEED_NUM_10G:
92 return VNET_DPDK_PORT_TYPE_ETH_10G;
93 case ETH_SPEED_NUM_20G:
94 return VNET_DPDK_PORT_TYPE_ETH_20G;
95 case ETH_SPEED_NUM_25G:
96 return VNET_DPDK_PORT_TYPE_ETH_25G;
97 case ETH_SPEED_NUM_40G:
98 return VNET_DPDK_PORT_TYPE_ETH_40G;
99 case ETH_SPEED_NUM_50G:
100 return VNET_DPDK_PORT_TYPE_ETH_50G;
101 case ETH_SPEED_NUM_56G:
102 return VNET_DPDK_PORT_TYPE_ETH_56G;
103 case ETH_SPEED_NUM_100G:
104 return VNET_DPDK_PORT_TYPE_ETH_100G;
106 return VNET_DPDK_PORT_TYPE_UNKNOWN;
111 dpdk_flag_change (vnet_main_t * vnm, vnet_hw_interface_t * hi, u32 flags)
113 dpdk_main_t *dm = &dpdk_main;
114 dpdk_device_t *xd = vec_elt_at_index (dm->devices, hi->dev_instance);
117 if (ETHERNET_INTERFACE_FLAG_CONFIG_PROMISC (flags))
119 old = (xd->flags & DPDK_DEVICE_FLAG_PROMISC) != 0;
121 if (flags & ETHERNET_INTERFACE_FLAG_ACCEPT_ALL)
122 xd->flags |= DPDK_DEVICE_FLAG_PROMISC;
124 xd->flags &= ~DPDK_DEVICE_FLAG_PROMISC;
126 if (xd->flags & DPDK_DEVICE_FLAG_ADMIN_UP)
128 if (xd->flags & DPDK_DEVICE_FLAG_PROMISC)
129 rte_eth_promiscuous_enable (xd->port_id);
131 rte_eth_promiscuous_disable (xd->port_id);
134 else if (ETHERNET_INTERFACE_FLAG_CONFIG_MTU (flags))
136 xd->port_conf.rxmode.max_rx_pkt_len = hi->max_packet_bytes;
137 dpdk_device_setup (xd);
143 dpdk_device_lock_init (dpdk_device_t * xd)
146 vec_validate (xd->lockp, xd->tx_q_used - 1);
147 for (q = 0; q < xd->tx_q_used; q++)
149 xd->lockp[q] = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
150 CLIB_CACHE_LINE_BYTES);
151 clib_memset ((void *) xd->lockp[q], 0, CLIB_CACHE_LINE_BYTES);
156 dpdk_port_crc_strip_enabled (dpdk_device_t * xd)
158 return !(xd->port_conf.rxmode.offloads & DEV_RX_OFFLOAD_KEEP_CRC);
161 /* The function check_l3cache helps check if Level 3 cache exists or not on current CPUs
162 return value 1: exist.
163 return value 0: not exist.
171 const char *sys_cache_dir = "/sys/devices/system/cpu/cpu0/cache";
172 DIR *dir_cache = opendir (sys_cache_dir);
174 if (dir_cache == NULL)
177 while ((dp = readdir (dir_cache)) != NULL)
179 if (dp->d_type == DT_DIR)
182 int level_cache = -1;
184 p = format (p, "%s/%s/%s%c", sys_cache_dir, dp->d_name, "level", 0);
185 if ((err = clib_sysfs_read ((char *) p, "%d", &level_cache)))
186 clib_error_free (err);
188 if (level_cache == 3)
190 closedir (dir_cache);
196 if (dir_cache != NULL)
197 closedir (dir_cache);
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 vnet_main_t *vnm = vnet_get_main ();
211 vlib_thread_main_t *tm = vlib_get_thread_main ();
212 vnet_device_main_t *vdm = &vnet_device_main;
213 vnet_sw_interface_t *sw;
214 vnet_hw_interface_t *hi;
216 vlib_pci_addr_t last_pci_addr;
217 u32 last_pci_addr_port = 0;
218 vlib_thread_registration_t *tr_hqos;
221 u32 next_hqos_cpu = 0;
222 u8 af_packet_instance_num = 0;
223 last_pci_addr.as_u32 = ~0;
225 dm->hqos_cpu_first_index = 0;
226 dm->hqos_cpu_count = 0;
228 /* find out which cpus will be used for I/O TX */
229 p_hqos = hash_get_mem (tm->thread_registrations_by_name, "hqos-threads");
230 tr_hqos = p_hqos ? (vlib_thread_registration_t *) p_hqos[0] : 0;
232 if (tr_hqos && tr_hqos->count > 0)
234 dm->hqos_cpu_first_index = tr_hqos->first_index;
235 dm->hqos_cpu_count = tr_hqos->count;
238 vec_validate_aligned (dm->devices_by_hqos_cpu, tm->n_vlib_mains - 1,
239 CLIB_CACHE_LINE_BYTES);
241 nports = rte_eth_dev_count_avail ();
245 dpdk_log_notice ("DPDK drivers found no Ethernet devices...");
249 dpdk_log_notice ("DPDK drivers found %d ports...", nports);
251 if (dm->conf->enable_tcp_udp_checksum)
252 dm->buffer_flags_template &= ~(VNET_BUFFER_F_L4_CHECKSUM_CORRECT
253 | VNET_BUFFER_F_L4_CHECKSUM_COMPUTED);
255 /* vlib_buffer_t template */
256 vec_validate_aligned (dm->per_thread_data, tm->n_vlib_mains - 1,
257 CLIB_CACHE_LINE_BYTES);
258 for (i = 0; i < tm->n_vlib_mains; i++)
260 dpdk_per_thread_data_t *ptd = vec_elt_at_index (dm->per_thread_data, i);
261 clib_memset (&ptd->buffer_template, 0, sizeof (vlib_buffer_t));
262 ptd->buffer_template.flags = dm->buffer_flags_template;
263 vnet_buffer (&ptd->buffer_template)->sw_if_index[VLIB_TX] = (u32) ~ 0;
267 RTE_ETH_FOREACH_DEV(i)
271 struct rte_eth_dev_info dev_info;
272 struct rte_pci_device *pci_dev;
273 struct rte_eth_link l;
274 dpdk_portid_t next_port_id;
275 dpdk_device_config_t *devconf = 0;
276 vlib_pci_addr_t pci_addr;
279 if (!rte_eth_dev_is_valid_port(i))
282 rte_eth_link_get_nowait (i, &l);
283 rte_eth_dev_info_get (i, &dev_info);
285 if (dev_info.device == 0)
287 dpdk_log_notice ("DPDK bug: missing device info. Skipping %s device",
288 dev_info.driver_name);
292 pci_dev = dpdk_get_pci_device (&dev_info);
296 pci_addr.domain = pci_dev->addr.domain;
297 pci_addr.bus = pci_dev->addr.bus;
298 pci_addr.slot = pci_dev->addr.devid;
299 pci_addr.function = pci_dev->addr.function;
300 p = hash_get (dm->conf->device_config_index_by_pci_addr,
305 /* Create vnet interface */
306 vec_add2_aligned (dm->devices, xd, 1, CLIB_CACHE_LINE_BYTES);
307 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
308 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
309 xd->cpu_socket = (i8) rte_eth_dev_socket_id (i);
313 devconf = pool_elt_at_index (dm->conf->dev_confs, p[0]);
314 xd->name = devconf->name;
317 devconf = &dm->conf->default_devconf;
319 /* Handle interface naming for devices with multiple ports sharing same PCI ID */
321 ((next_port_id = rte_eth_find_next (i + 1)) != RTE_MAX_ETHPORTS))
323 struct rte_eth_dev_info di = { 0 };
324 struct rte_pci_device *next_pci_dev;
325 rte_eth_dev_info_get (next_port_id, &di);
326 next_pci_dev = di.device ? RTE_DEV_TO_PCI (di.device) : 0;
328 pci_addr.as_u32 != last_pci_addr.as_u32 &&
329 memcmp (&pci_dev->addr, &next_pci_dev->addr,
330 sizeof (struct rte_pci_addr)) == 0)
332 xd->interface_name_suffix = format (0, "0");
333 last_pci_addr.as_u32 = pci_addr.as_u32;
334 last_pci_addr_port = i;
336 else if (pci_addr.as_u32 == last_pci_addr.as_u32)
338 xd->interface_name_suffix =
339 format (0, "%u", i - last_pci_addr_port);
343 last_pci_addr.as_u32 = ~0;
347 last_pci_addr.as_u32 = ~0;
349 clib_memcpy (&xd->tx_conf, &dev_info.default_txconf,
350 sizeof (struct rte_eth_txconf));
352 if (dev_info.rx_offload_capa & DEV_RX_OFFLOAD_IPV4_CKSUM)
354 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_IPV4_CKSUM;
355 xd->flags |= DPDK_DEVICE_FLAG_RX_IP4_CKSUM;
358 if (dm->conf->no_multi_seg)
360 xd->port_conf.txmode.offloads &= ~DEV_TX_OFFLOAD_MULTI_SEGS;
361 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
362 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
366 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
367 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
368 xd->port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
369 xd->flags |= DPDK_DEVICE_FLAG_MAYBE_MULTISEG;
372 xd->tx_q_used = clib_min (dev_info.max_tx_queues, tm->n_vlib_mains);
374 if (devconf->num_tx_queues > 0
375 && devconf->num_tx_queues < xd->tx_q_used)
376 xd->tx_q_used = clib_min (xd->tx_q_used, devconf->num_tx_queues);
378 if (devconf->num_rx_queues > 1
379 && dev_info.max_rx_queues >= devconf->num_rx_queues)
381 xd->rx_q_used = devconf->num_rx_queues;
382 xd->port_conf.rxmode.mq_mode = ETH_MQ_RX_RSS;
383 if (devconf->rss_fn == 0)
384 xd->port_conf.rx_adv_conf.rss_conf.rss_hf =
385 ETH_RSS_IP | ETH_RSS_UDP | ETH_RSS_TCP;
388 u64 unsupported_bits;
389 xd->port_conf.rx_adv_conf.rss_conf.rss_hf = devconf->rss_fn;
390 unsupported_bits = xd->port_conf.rx_adv_conf.rss_conf.rss_hf;
391 unsupported_bits &= ~dev_info.flow_type_rss_offloads;
392 if (unsupported_bits)
393 dpdk_log_warn ("Unsupported RSS hash functions: %U",
394 format_dpdk_rss_hf_name, unsupported_bits);
396 xd->port_conf.rx_adv_conf.rss_conf.rss_hf &=
397 dev_info.flow_type_rss_offloads;
402 xd->flags |= DPDK_DEVICE_FLAG_PMD;
404 /* workaround for drivers not setting driver_name */
405 if ((!dev_info.driver_name) && (pci_dev))
406 dev_info.driver_name = pci_dev->driver->driver.name;
408 ASSERT (dev_info.driver_name);
414 #define _(s,f) else if (dev_info.driver_name && \
415 !strcmp(dev_info.driver_name, s)) \
416 xd->pmd = VNET_DPDK_PMD_##f;
422 xd->pmd = VNET_DPDK_PMD_UNKNOWN;
424 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
425 xd->nb_rx_desc = DPDK_NB_RX_DESC_DEFAULT;
426 xd->nb_tx_desc = DPDK_NB_TX_DESC_DEFAULT;
430 /* Drivers with valid speed_capa set */
431 case VNET_DPDK_PMD_E1000EM:
432 case VNET_DPDK_PMD_IGB:
433 case VNET_DPDK_PMD_IXGBE:
434 case VNET_DPDK_PMD_I40E:
435 case VNET_DPDK_PMD_ICE:
436 xd->port_type = port_type_from_speed_capa (&dev_info);
437 xd->supported_flow_actions = VNET_FLOW_ACTION_MARK |
438 VNET_FLOW_ACTION_REDIRECT_TO_NODE |
439 VNET_FLOW_ACTION_REDIRECT_TO_QUEUE |
440 VNET_FLOW_ACTION_BUFFER_ADVANCE |
441 VNET_FLOW_ACTION_COUNT | VNET_FLOW_ACTION_DROP;
443 if (dm->conf->no_tx_checksum_offload == 0)
445 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
446 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
448 DPDK_DEVICE_FLAG_TX_OFFLOAD |
449 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
454 case VNET_DPDK_PMD_CXGBE:
455 case VNET_DPDK_PMD_MLX4:
456 case VNET_DPDK_PMD_MLX5:
457 case VNET_DPDK_PMD_QEDE:
458 case VNET_DPDK_PMD_BNXT:
459 xd->port_type = port_type_from_speed_capa (&dev_info);
463 case VNET_DPDK_PMD_IGBVF:
464 case VNET_DPDK_PMD_IXGBEVF:
465 case VNET_DPDK_PMD_I40EVF:
466 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
467 if (dm->conf->no_tx_checksum_offload == 0)
469 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
470 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
472 DPDK_DEVICE_FLAG_TX_OFFLOAD |
473 DPDK_DEVICE_FLAG_INTEL_PHDR_CKSUM;
477 case VNET_DPDK_PMD_THUNDERX:
478 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
480 if (dm->conf->no_tx_checksum_offload == 0)
482 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
483 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
484 xd->flags |= DPDK_DEVICE_FLAG_TX_OFFLOAD;
488 case VNET_DPDK_PMD_ENA:
489 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
490 xd->port_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_SCATTER;
493 case VNET_DPDK_PMD_DPAA2:
494 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_10G;
498 case VNET_DPDK_PMD_ENIC:
499 xd->port_type = port_type_from_link_speed (l.link_speed);
502 /* Intel Red Rock Canyon */
503 case VNET_DPDK_PMD_FM10K:
504 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_SWITCH;
508 case VNET_DPDK_PMD_VIRTIO:
509 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
510 xd->nb_rx_desc = DPDK_NB_RX_DESC_VIRTIO;
511 xd->nb_tx_desc = DPDK_NB_TX_DESC_VIRTIO;
515 case VNET_DPDK_PMD_VMXNET3:
516 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_1G;
517 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_MULTI_SEGS;
520 case VNET_DPDK_PMD_AF_PACKET:
521 xd->port_type = VNET_DPDK_PORT_TYPE_AF_PACKET;
522 xd->af_packet_instance_num = af_packet_instance_num++;
525 case VNET_DPDK_PMD_VIRTIO_USER:
526 xd->port_type = VNET_DPDK_PORT_TYPE_VIRTIO_USER;
529 case VNET_DPDK_PMD_VHOST_ETHER:
530 xd->port_type = VNET_DPDK_PORT_TYPE_VHOST_ETHER;
533 case VNET_DPDK_PMD_LIOVF_ETHER:
534 xd->port_type = VNET_DPDK_PORT_TYPE_ETH_VF;
537 case VNET_DPDK_PMD_FAILSAFE:
538 xd->port_type = VNET_DPDK_PORT_TYPE_FAILSAFE;
539 xd->port_conf.intr_conf.lsc = 1;
542 case VNET_DPDK_PMD_NETVSC:
543 xd->port_type = port_type_from_link_speed (l.link_speed);
547 xd->port_type = VNET_DPDK_PORT_TYPE_UNKNOWN;
550 if (devconf->num_rx_desc)
551 xd->nb_rx_desc = devconf->num_rx_desc;
554 /* If num_rx_desc is not specified by VPP user, the current CPU is working
555 with 2M page and has no L3 cache, default num_rx_desc is changed to 512
556 from original 1024 to help reduce TLB misses.
558 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
559 && check_l3cache() == 0)
560 xd->nb_rx_desc = 512;
563 if (devconf->num_tx_desc)
564 xd->nb_tx_desc = devconf->num_tx_desc;
567 /* If num_tx_desc is not specified by VPP user, the current CPU is working
568 with 2M page and has no L3 cache, default num_tx_desc is changed to 512
569 from original 1024 to help reduce TLB misses.
571 if ((clib_mem_get_default_hugepage_size () == 2 << 20)
572 && check_l3cache() == 0)
573 xd->nb_tx_desc = 512;
577 if (xd->pmd == VNET_DPDK_PMD_AF_PACKET)
579 f64 now = vlib_time_now (vm);
581 rnd = (u32) (now * 1e6);
582 rnd = random_u32 (&rnd);
583 clib_memcpy (addr + 2, &rnd, sizeof (rnd));
588 rte_eth_macaddr_get (i, (void *) addr);
590 if (xd->tx_q_used < tm->n_vlib_mains)
591 dpdk_device_lock_init (xd);
594 xd->device_index = xd - dm->devices;
595 xd->per_interface_next_index = ~0;
597 /* assign interface to input thread */
600 if (devconf->hqos_enabled)
602 xd->flags |= DPDK_DEVICE_FLAG_HQOS;
605 if (devconf->hqos.hqos_thread_valid)
607 if (devconf->hqos.hqos_thread >= dm->hqos_cpu_count)
608 return clib_error_return (0, "invalid HQoS thread index");
610 cpu = dm->hqos_cpu_first_index + devconf->hqos.hqos_thread;
614 if (dm->hqos_cpu_count == 0)
615 return clib_error_return (0, "no HQoS threads available");
617 cpu = dm->hqos_cpu_first_index + next_hqos_cpu;
620 if (next_hqos_cpu == dm->hqos_cpu_count)
623 devconf->hqos.hqos_thread_valid = 1;
624 devconf->hqos.hqos_thread = cpu;
627 dpdk_device_and_queue_t *dq;
628 vec_add2 (dm->devices_by_hqos_cpu[cpu], dq, 1);
629 dq->device = xd->device_index;
633 error = ethernet_register_interface
634 (dm->vnet_main, dpdk_device_class.index, xd->device_index,
635 /* ethernet address */ addr,
636 &xd->hw_if_index, dpdk_flag_change);
641 * Ensure default mtu is not > the mtu read from the hardware.
642 * Otherwise rte_eth_dev_configure() will fail and the port will
644 * Calculate max_frame_size and mtu supported by NIC
646 if (ETHERNET_MAX_PACKET_BYTES > dev_info.max_rx_pktlen)
649 * This device does not support the platforms's max frame
650 * size. Use it's advertised mru instead.
652 max_rx_frame = dev_info.max_rx_pktlen;
653 mtu = dev_info.max_rx_pktlen - sizeof (ethernet_header_t);
657 /* VPP treats MTU and max_rx_pktlen both equal to
658 * ETHERNET_MAX_PACKET_BYTES, if dev_info.max_rx_pktlen >=
659 * ETHERNET_MAX_PACKET_BYTES + sizeof(ethernet_header_t)
661 if (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
662 sizeof (ethernet_header_t)))
664 mtu = ETHERNET_MAX_PACKET_BYTES;
665 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
668 * Some platforms do not account for Ethernet FCS (4 bytes) in
669 * MTU calculations. To interop with them increase mru but only
670 * if the device's settings can support it.
672 if (dpdk_port_crc_strip_enabled (xd) &&
673 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES +
674 sizeof (ethernet_header_t) +
682 max_rx_frame = ETHERNET_MAX_PACKET_BYTES;
683 mtu = ETHERNET_MAX_PACKET_BYTES - sizeof (ethernet_header_t);
685 if (dpdk_port_crc_strip_enabled (xd) &&
686 (dev_info.max_rx_pktlen >= (ETHERNET_MAX_PACKET_BYTES + 4)))
693 if (xd->pmd == VNET_DPDK_PMD_FAILSAFE)
695 /* failsafe device numerables are reported with active device only,
696 * need to query the mtu for current device setup to overwrite
700 if (!rte_eth_dev_get_mtu (i, &dev_mtu))
703 max_rx_frame = mtu + sizeof (ethernet_header_t);
705 if (dpdk_port_crc_strip_enabled (xd))
712 /*Set port rxmode config */
713 xd->port_conf.rxmode.max_rx_pkt_len = max_rx_frame;
715 sw = vnet_get_hw_sw_interface (dm->vnet_main, xd->hw_if_index);
716 xd->sw_if_index = sw->sw_if_index;
717 vnet_hw_interface_set_input_node (dm->vnet_main, xd->hw_if_index,
718 dpdk_input_node.index);
720 if (devconf->workers)
724 clib_bitmap_foreach (i, devconf->workers, ({
725 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q++,
726 vdm->first_worker_thread_index + i);
730 for (q = 0; q < xd->rx_q_used; q++)
732 vnet_hw_interface_assign_rx_thread (dm->vnet_main, xd->hw_if_index, q, /* any */
736 /*Get vnet hardware interface */
737 hi = vnet_get_hw_interface (dm->vnet_main, xd->hw_if_index);
739 /*Override default max_packet_bytes and max_supported_bytes set in
740 * ethernet_register_interface() above*/
743 hi->max_packet_bytes = mtu;
744 hi->max_supported_packet_bytes = max_rx_frame;
745 hi->numa_node = xd->cpu_socket;
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 vnm->interface_main.gso_interface_count++;
760 xd->port_conf.txmode.offloads |= DEV_TX_OFFLOAD_TCP_TSO |
761 DEV_TX_OFFLOAD_UDP_TSO;
764 clib_warning ("%s: TCP/UDP checksum offload must be enabled",
768 dpdk_device_setup (xd);
770 if (vec_len (xd->errors))
771 dpdk_log_err ("setup failed for device %U. Errors:\n %U",
772 format_dpdk_device_name, i,
773 format_dpdk_device_errors, xd);
775 if (devconf->hqos_enabled)
778 rv = dpdk_port_setup_hqos (xd, &devconf->hqos);
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)
964 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1003 && d->device_id <= 0x1004)
969 else if (d->vendor_id == 0x15b3 && d->device_id >= 0x1013 && d->device_id <= 0x101a)
973 /* Broadcom NetXtreme S, and E series only */
974 else if (d->vendor_id == 0x14e4 &&
975 ((d->device_id >= 0x16c0 &&
976 d->device_id != 0x16c6 && d->device_id != 0x16c7 &&
977 d->device_id != 0x16dd && d->device_id != 0x16f7 &&
978 d->device_id != 0x16fd && d->device_id != 0x16fe &&
979 d->device_id != 0x170d && d->device_id != 0x170c &&
980 d->device_id != 0x170e && d->device_id != 0x1712 &&
981 d->device_id != 0x1713) ||
982 (d->device_id == 0x1604 || d->device_id == 0x1605 ||
983 d->device_id == 0x1614 || d->device_id == 0x1606 ||
984 d->device_id == 0x1609 || d->device_id == 0x1614)))
988 dpdk_log_warn ("Unsupported PCI device 0x%04x:0x%04x found "
989 "at PCI address %s\n", (u16) d->vendor_id, (u16) d->device_id,
994 error = vlib_pci_bind_to_uio (vm, addr, (char *) conf->uio_driver_name);
1000 pool_get (conf->dev_confs, devconf);
1001 hash_set (conf->device_config_index_by_pci_addr, addr->as_u32,
1002 devconf - conf->dev_confs);
1003 devconf->pci_addr.as_u32 = addr->as_u32;
1005 devconf->is_blacklisted = 1;
1006 clib_error_report (error);
1010 vec_free (pci_addr);
1011 vlib_pci_free_device_info (d);
1015 dpdk_bind_vmbus_devices_to_uio (dpdk_config_main_t * conf)
1017 clib_error_t *error;
1018 vlib_vmbus_addr_t *addrs, *addr = 0;
1020 addrs = vlib_vmbus_get_all_dev_addrs ();
1023 vec_foreach (addr, addrs)
1025 error = vlib_vmbus_bind_to_uio (addr);
1029 clib_error_report (error);
1035 static clib_error_t *
1036 dpdk_device_config (dpdk_config_main_t * conf, vlib_pci_addr_t pci_addr,
1037 unformat_input_t * input, u8 is_default)
1039 clib_error_t *error = 0;
1041 dpdk_device_config_t *devconf;
1042 unformat_input_t sub_input;
1046 devconf = &conf->default_devconf;
1050 p = hash_get (conf->device_config_index_by_pci_addr, pci_addr.as_u32);
1054 pool_get (conf->dev_confs, devconf);
1055 hash_set (conf->device_config_index_by_pci_addr, pci_addr.as_u32,
1056 devconf - conf->dev_confs);
1059 return clib_error_return (0,
1060 "duplicate configuration for PCI address %U",
1061 format_vlib_pci_addr, &pci_addr);
1064 devconf->pci_addr.as_u32 = pci_addr.as_u32;
1065 devconf->hqos_enabled = 0;
1066 devconf->tso = DPDK_DEVICE_TSO_DEFAULT;
1068 dpdk_device_config_hqos_default (&devconf->hqos);
1074 unformat_skip_white_space (input);
1075 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1077 if (unformat (input, "num-rx-queues %u", &devconf->num_rx_queues))
1079 else if (unformat (input, "num-tx-queues %u", &devconf->num_tx_queues))
1081 else if (unformat (input, "num-rx-desc %u", &devconf->num_rx_desc))
1083 else if (unformat (input, "num-tx-desc %u", &devconf->num_tx_desc))
1085 else if (unformat (input, "name %s", &devconf->name))
1087 else if (unformat (input, "workers %U", unformat_bitmap_list,
1092 (input, "rss %U", unformat_vlib_cli_sub_input, &sub_input))
1094 error = unformat_rss_fn (&sub_input, &devconf->rss_fn);
1098 else if (unformat (input, "vlan-strip-offload off"))
1099 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_OFF;
1100 else if (unformat (input, "vlan-strip-offload on"))
1101 devconf->vlan_strip_offload = DPDK_DEVICE_VLAN_STRIP_ON;
1104 (input, "hqos %U", unformat_vlib_cli_sub_input, &sub_input))
1106 devconf->hqos_enabled = 1;
1107 error = unformat_hqos (&sub_input, &devconf->hqos);
1111 else if (unformat (input, "hqos"))
1113 devconf->hqos_enabled = 1;
1115 else if (unformat (input, "tso on"))
1117 devconf->tso = DPDK_DEVICE_TSO_ON;
1119 else if (unformat (input, "tso off"))
1121 devconf->tso = DPDK_DEVICE_TSO_OFF;
1125 error = clib_error_return (0, "unknown input `%U'",
1126 format_unformat_error, input);
1134 if (devconf->workers && devconf->num_rx_queues == 0)
1135 devconf->num_rx_queues = clib_bitmap_count_set_bits (devconf->workers);
1136 else if (devconf->workers &&
1137 clib_bitmap_count_set_bits (devconf->workers) !=
1138 devconf->num_rx_queues)
1140 clib_error_return (0,
1141 "%U: number of worker threads must be "
1142 "equal to number of rx queues", format_vlib_pci_addr,
1148 static clib_error_t *
1149 dpdk_log_read_ready (clib_file_t * uf)
1151 unformat_input_t input;
1158 uword len = vec_len (s);
1159 vec_resize (s, len + n_try);
1161 n = read (uf->file_descriptor, s + len, n_try);
1162 if (n < 0 && errno != EAGAIN)
1163 return clib_error_return_unix (0, "read");
1164 _vec_len (s) = len + (n < 0 ? 0 : n);
1167 unformat_init_vector (&input, s);
1169 while (unformat_user (&input, unformat_line, &line))
1171 dpdk_log_notice ("%v", line);
1175 unformat_free (&input);
1179 static clib_error_t *
1180 dpdk_config (vlib_main_t * vm, unformat_input_t * input)
1182 clib_error_t *error = 0;
1183 dpdk_config_main_t *conf = &dpdk_config_main;
1184 vlib_thread_main_t *tm = vlib_get_thread_main ();
1185 dpdk_device_config_t *devconf;
1186 vlib_pci_addr_t pci_addr;
1187 unformat_input_t sub_input;
1188 uword default_hugepage_sz, x;
1191 int num_whitelisted = 0;
1196 u8 *huge_dir_path = 0;
1200 format (0, "%s/hugepages%c", vlib_unix_get_runtime_dir (), 0);
1202 conf->device_config_index_by_pci_addr = hash_create (0, sizeof (uword));
1204 while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
1206 /* Prime the pump */
1207 if (unformat (input, "no-hugetlb"))
1209 vec_add1 (conf->eal_init_args, (u8 *) "--no-huge");
1212 else if (unformat (input, "enable-tcp-udp-checksum"))
1213 conf->enable_tcp_udp_checksum = 1;
1215 else if (unformat (input, "no-tx-checksum-offload"))
1216 conf->no_tx_checksum_offload = 1;
1218 else if (unformat (input, "decimal-interface-names"))
1219 conf->interface_name_format_decimal = 1;
1221 else if (unformat (input, "no-multi-seg"))
1222 conf->no_multi_seg = 1;
1224 else if (unformat (input, "dev default %U", unformat_vlib_cli_sub_input,
1228 dpdk_device_config (conf, (vlib_pci_addr_t) (u32) ~ 1, &sub_input,
1236 (input, "dev %U %U", unformat_vlib_pci_addr, &pci_addr,
1237 unformat_vlib_cli_sub_input, &sub_input))
1239 error = dpdk_device_config (conf, pci_addr, &sub_input, 0);
1246 else if (unformat (input, "dev %U", unformat_vlib_pci_addr, &pci_addr))
1248 error = dpdk_device_config (conf, pci_addr, 0, 0);
1255 else if (unformat (input, "num-mem-channels %d", &conf->nchannels))
1256 conf->nchannels_set_manually = 0;
1257 else if (unformat (input, "num-crypto-mbufs %d",
1258 &conf->num_crypto_mbufs))
1260 else if (unformat (input, "uio-driver %s", &conf->uio_driver_name))
1262 else if (unformat (input, "socket-mem %s", &socket_mem))
1264 else if (unformat (input, "no-pci"))
1267 tmp = format (0, "--no-pci%c", 0);
1268 vec_add1 (conf->eal_init_args, tmp);
1270 else if (unformat (input, "blacklist %x:%x", &vendor, &device))
1272 u32 blacklist_entry;
1273 if (vendor > 0xFFFF)
1274 return clib_error_return (0, "blacklist PCI vendor out of range");
1275 if (device > 0xFFFF)
1276 return clib_error_return (0, "blacklist PCI device out of range");
1277 blacklist_entry = (vendor << 16) | (device & 0xffff);
1278 vec_add1 (conf->blacklist_by_pci_vendor_and_device,
1281 else if (unformat (input, "no-vmbus"))
1284 tmp = format (0, "--no-vmbus%c", 0);
1285 vec_add1 (conf->eal_init_args, tmp);
1289 else if (unformat(input, #a)) \
1291 tmp = format (0, "--%s%c", #a, 0); \
1292 vec_add1 (conf->eal_init_args, tmp); \
1294 foreach_eal_double_hyphen_predicate_arg
1297 else if (unformat(input, #a " %s", &s)) \
1299 if (!strncmp(#a, "file-prefix", 11)) \
1301 tmp = format (0, "--%s%c", #a, 0); \
1302 vec_add1 (conf->eal_init_args, tmp); \
1304 if (!strncmp(#a, "vdev", 4)) \
1305 if (strstr((char*)s, "af_packet")) \
1306 clib_warning ("af_packet obsoleted. Use CLI 'create host-interface'."); \
1307 vec_add1 (conf->eal_init_args, s); \
1309 foreach_eal_double_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); \
1319 foreach_eal_single_hyphen_arg
1322 else if (unformat(input, #a " %s", &s)) \
1324 tmp = format (0, "-%s%c", #b, 0); \
1325 vec_add1 (conf->eal_init_args, tmp); \
1327 vec_add1 (conf->eal_init_args, s); \
1328 conf->a##_set_manually = 1; \
1330 foreach_eal_single_hyphen_mandatory_arg
1332 else if (unformat (input, "default"))
1335 else if (unformat_skip_white_space (input))
1339 error = clib_error_return (0, "unknown input `%U'",
1340 format_unformat_error, input);
1345 if (!conf->uio_driver_name)
1346 conf->uio_driver_name = format (0, "auto%c", 0);
1348 default_hugepage_sz = clib_mem_get_default_hugepage_size ();
1351 clib_bitmap_foreach (x, tm->cpu_socket_bitmap, (
1355 /* preallocate at least 16MB of hugepages per socket,
1356 if more is needed it is up to consumer to preallocate more */
1357 n_pages = round_pow2 ((uword) 16 << 20, default_hugepage_sz);
1358 n_pages /= default_hugepage_sz;
1360 if ((e = clib_sysfs_prealloc_hugepages(x, 0, n_pages)))
1361 clib_error_report (e);
1367 tmp = format (0, "--file-prefix%c", 0);
1368 vec_add1 (conf->eal_init_args, tmp);
1369 tmp = format (0, "vpp%c", 0);
1370 vec_add1 (conf->eal_init_args, tmp);
1376 /* I'll bet that -c and -n must be the first and second args... */
1377 if (!conf->coremask_set_manually)
1379 vlib_thread_registration_t *tr;
1380 uword *coremask = 0;
1383 /* main thread core */
1384 coremask = clib_bitmap_set (coremask, tm->main_lcore, 1);
1386 for (i = 0; i < vec_len (tm->registrations); i++)
1388 tr = tm->registrations[i];
1389 coremask = clib_bitmap_or (coremask, tr->coremask);
1392 vec_insert (conf->eal_init_args, 2, 1);
1393 conf->eal_init_args[1] = (u8 *) "-c";
1394 tmp = format (0, "%U%c", format_bitmap_hex, coremask, 0);
1395 conf->eal_init_args[2] = tmp;
1396 clib_bitmap_free (coremask);
1399 if (!conf->nchannels_set_manually)
1401 vec_insert (conf->eal_init_args, 2, 3);
1402 conf->eal_init_args[3] = (u8 *) "-n";
1403 tmp = format (0, "%d", conf->nchannels);
1404 vec_terminate_c_string (tmp);
1405 conf->eal_init_args[4] = tmp;
1408 if (no_pci == 0 && geteuid () == 0)
1409 dpdk_bind_devices_to_uio (conf);
1411 if (no_vmbus == 0 && geteuid () == 0)
1412 dpdk_bind_vmbus_devices_to_uio (conf);
1415 if (devconf->x == 0 && conf->default_devconf.x > 0) \
1416 devconf->x = conf->default_devconf.x ;
1419 pool_foreach (devconf, conf->dev_confs, ({
1421 /* default per-device config items */
1422 foreach_dpdk_device_config_item
1424 /* copy vlan_strip config from default device */
1425 if (devconf->vlan_strip_offload == 0 &&
1426 conf->default_devconf.vlan_strip_offload > 0)
1427 devconf->vlan_strip_offload =
1428 conf->default_devconf.vlan_strip_offload;
1430 /* copy tso config from default device */
1433 /* add DPDK EAL whitelist/blacklist entry */
1434 if (num_whitelisted > 0 && devconf->is_blacklisted == 0)
1436 tmp = format (0, "-w%c", 0);
1437 vec_add1 (conf->eal_init_args, tmp);
1438 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 tm->worker_thread_release = 1;
1629 f64 now = vlib_time_now (vm);
1630 vec_foreach (xd, dm->devices)
1632 dpdk_update_link_state (xd, now);
1638 * check each time through the loop in case intervals are changed
1640 f64 min_wait = dm->link_state_poll_interval < dm->stat_poll_interval ?
1641 dm->link_state_poll_interval : dm->stat_poll_interval;
1643 vlib_process_wait_for_event_or_clock (vm, min_wait);
1645 if (dm->admin_up_down_in_progress)
1646 /* skip the poll if an admin up down is in progress (on any interface) */
1649 vec_foreach (xd, dm->devices)
1651 f64 now = vlib_time_now (vm);
1652 if ((now - xd->time_last_stats_update) >= dm->stat_poll_interval)
1653 dpdk_update_counters (xd, now);
1654 if ((now - xd->time_last_link_update) >= dm->link_state_poll_interval)
1655 dpdk_update_link_state (xd, now);
1664 VLIB_REGISTER_NODE (dpdk_process_node,static) = {
1665 .function = dpdk_process,
1666 .type = VLIB_NODE_TYPE_PROCESS,
1667 .name = "dpdk-process",
1668 .process_log2_n_stack_bytes = 17,
1672 static clib_error_t *
1673 dpdk_init (vlib_main_t * vm)
1675 dpdk_main_t *dm = &dpdk_main;
1676 clib_error_t *error = 0;
1678 /* verify that structs are cacheline aligned */
1679 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline0) == 0,
1680 "Cache line marker must be 1st element in dpdk_device_t");
1681 STATIC_ASSERT (offsetof (dpdk_device_t, cacheline1) ==
1682 CLIB_CACHE_LINE_BYTES,
1683 "Data in cache line 0 is bigger than cache line size");
1684 STATIC_ASSERT (offsetof (frame_queue_trace_t, cacheline0) == 0,
1685 "Cache line marker must be 1st element in frame_queue_trace_t");
1686 STATIC_ASSERT (RTE_CACHE_LINE_SIZE == 1 << CLIB_LOG2_CACHE_LINE_BYTES,
1687 "DPDK RTE CACHE LINE SIZE does not match with 1<<CLIB_LOG2_CACHE_LINE_BYTES");
1689 dpdk_cli_reference ();
1692 dm->vnet_main = vnet_get_main ();
1693 dm->conf = &dpdk_config_main;
1695 dm->conf->nchannels = 4;
1696 vec_add1 (dm->conf->eal_init_args, (u8 *) "vnet");
1697 vec_add1 (dm->conf->eal_init_args, (u8 *) "--in-memory");
1699 /* Default vlib_buffer_t flags, DISABLES tcp/udp checksumming... */
1700 dm->buffer_flags_template = (VLIB_BUFFER_TOTAL_LENGTH_VALID |
1701 VLIB_BUFFER_EXT_HDR_VALID |
1702 VNET_BUFFER_F_L4_CHECKSUM_COMPUTED |
1703 VNET_BUFFER_F_L4_CHECKSUM_CORRECT);
1705 dm->stat_poll_interval = DPDK_STATS_POLL_INTERVAL;
1706 dm->link_state_poll_interval = DPDK_LINK_POLL_INTERVAL;
1708 dm->log_default = vlib_log_register_class ("dpdk", 0);
1713 VLIB_INIT_FUNCTION (dpdk_init);
1716 * fd.io coding-style-patch-verification: ON
1719 * eval: (c-set-style "gnu")